diff options
372 files changed, 11139 insertions, 1562 deletions
diff --git a/.gitignore b/.gitignore index 9bb1cb6d825..869e1a3b64b 100644 --- a/.gitignore +++ b/.gitignore @@ -3,6 +3,10 @@ # subdirectories here. Add them in the ".gitignore" file # in that subdirectory instead. # +# NOTE! Please use 'git-ls-files -i --exclude-standard' +# command after changing this file, to see if there are +# any tracked files which get ignored after the change. +# # Normal rules # .* @@ -18,19 +22,21 @@ *.lst *.symtypes *.order +*.elf +*.bin +*.gz # # Top-level generic files # tags TAGS -vmlinux* -!vmlinux.lds.S -!vmlinux.lds.h +vmlinux System.map Module.markers Module.symvers !.gitignore +!.mailmap # # Generated include files @@ -2611,8 +2611,9 @@ S: Perth, Western Australia S: Australia N: Miguel Ojeda Sandonis -E: maxextreme@gmail.com -W: http://maxextreme.googlepages.com/ +E: miguel.ojeda.sandonis@gmail.com +W: http://miguelojeda.es +W: http://jair.lab.fi.uva.es/~migojed/ D: Author of the ks0108, cfag12864b and cfag12864bfb auxiliary display drivers. D: Maintainer of the auxiliary display drivers tree (drivers/auxdisplay/*) S: C/ Mieses 20, 9-B diff --git a/Documentation/accounting/taskstats-struct.txt b/Documentation/accounting/taskstats-struct.txt index 8aa7529f825..cd784f46bf8 100644 --- a/Documentation/accounting/taskstats-struct.txt +++ b/Documentation/accounting/taskstats-struct.txt @@ -24,6 +24,8 @@ There are three different groups of fields in the struct taskstats: 4) Per-task and per-thread context switch count statistics +5) Time accounting for SMT machines + Future extension should add fields to the end of the taskstats struct, and should not change the relative position of each field within the struct. @@ -164,4 +166,8 @@ struct taskstats { __u64 nvcsw; /* Context voluntary switch counter */ __u64 nivcsw; /* Context involuntary switch counter */ +5) Time accounting for SMT machines + __u64 ac_utimescaled; /* utime scaled on frequency etc */ + __u64 ac_stimescaled; /* stime scaled on frequency etc */ + __u64 cpu_scaled_run_real_total; /* scaled cpu_run_real_total */ } diff --git a/Documentation/auxdisplay/cfag12864b b/Documentation/auxdisplay/cfag12864b index b714183d412..eb7be393a51 100644 --- a/Documentation/auxdisplay/cfag12864b +++ b/Documentation/auxdisplay/cfag12864b @@ -3,7 +3,7 @@ =================================== License: GPLv2 -Author & Maintainer: Miguel Ojeda Sandonis <maxextreme@gmail.com> +Author & Maintainer: Miguel Ojeda Sandonis Date: 2006-10-27 @@ -22,7 +22,7 @@ Date: 2006-10-27 1. DRIVER INFORMATION --------------------- -This driver support one cfag12864b display at time. +This driver supports a cfag12864b LCD. --------------------- diff --git a/Documentation/auxdisplay/cfag12864b-example.c b/Documentation/auxdisplay/cfag12864b-example.c index 7bfac354d4c..2caeea5e499 100644 --- a/Documentation/auxdisplay/cfag12864b-example.c +++ b/Documentation/auxdisplay/cfag12864b-example.c @@ -4,7 +4,7 @@ * Description: cfag12864b LCD userspace example program * License: GPLv2 * - * Author: Copyright (C) Miguel Ojeda Sandonis <maxextreme@gmail.com> + * Author: Copyright (C) Miguel Ojeda Sandonis * Date: 2006-10-31 * * This program is free software; you can redistribute it and/or modify diff --git a/Documentation/auxdisplay/ks0108 b/Documentation/auxdisplay/ks0108 index 92b03b60c61..8ddda0c8cee 100644 --- a/Documentation/auxdisplay/ks0108 +++ b/Documentation/auxdisplay/ks0108 @@ -3,7 +3,7 @@ ========================================== License: GPLv2 -Author & Maintainer: Miguel Ojeda Sandonis <maxextreme@gmail.com> +Author & Maintainer: Miguel Ojeda Sandonis Date: 2006-10-27 @@ -21,7 +21,7 @@ Date: 2006-10-27 1. DRIVER INFORMATION --------------------- -This driver support the ks0108 LCD controller. +This driver supports the ks0108 LCD controller. --------------------- diff --git a/Documentation/cgroups.txt b/Documentation/cgroups.txt index 824fc027447..d9014aa0eb6 100644 --- a/Documentation/cgroups.txt +++ b/Documentation/cgroups.txt @@ -390,6 +390,10 @@ If you have several tasks to attach, you have to do it one after another: ... # /bin/echo PIDn > tasks +You can attach the current shell task by echoing 0: + +# echo 0 > tasks + 3. Kernel API ============= diff --git a/Documentation/controllers/devices.txt b/Documentation/controllers/devices.txt index 4dcea42432c..7cc6e6a6067 100644 --- a/Documentation/controllers/devices.txt +++ b/Documentation/controllers/devices.txt @@ -13,7 +13,7 @@ either an integer or * for all. Access is a composition of r The root device cgroup starts with rwm to 'all'. A child device cgroup gets a copy of the parent. Administrators can then remove devices from the whitelist or add new entries. A child cgroup can -never receive a device access which is denied its parent. However +never receive a device access which is denied by its parent. However when a device access is removed from a parent it will not also be removed from the child(ren). @@ -29,7 +29,11 @@ allows cgroup 1 to read and mknod the device usually known as echo a > /cgroups/1/devices.deny -will remove the default 'a *:* mrw' entry. +will remove the default 'a *:* rwm' entry. Doing + + echo a > /cgroups/1/devices.allow + +will add the 'a *:* rwm' entry to the whitelist. 3. Security diff --git a/Documentation/cpusets.txt b/Documentation/cpusets.txt index 353504de308..1f5a924d1e5 100644 --- a/Documentation/cpusets.txt +++ b/Documentation/cpusets.txt @@ -154,13 +154,15 @@ browsing and modifying the cpusets presently known to the kernel. No new system calls are added for cpusets - all support for querying and modifying cpusets is via this cpuset file system. -The /proc/<pid>/status file for each task has two added lines, +The /proc/<pid>/status file for each task has four added lines, displaying the tasks cpus_allowed (on which CPUs it may be scheduled) and mems_allowed (on which Memory Nodes it may obtain memory), -in the format seen in the following example: +in the two formats seen in the following example: Cpus_allowed: ffffffff,ffffffff,ffffffff,ffffffff + Cpus_allowed_list: 0-127 Mems_allowed: ffffffff,ffffffff + Mems_allowed_list: 0-63 Each cpuset is represented by a directory in the cgroup file system containing (on top of the standard cgroup files) the following @@ -544,6 +546,9 @@ otherwise initial value -1 that indicates the cpuset has no request. ( 4 : search nodes in a chunk of node [on NUMA system] ) ( 5 : search system wide [on NUMA system] ) +The system default is architecture dependent. The system default +can be changed using the relax_domain_level= boot parameter. + This file is per-cpuset and affect the sched domain where the cpuset belongs to. Therefore if the flag 'sched_load_balance' of a cpuset is disabled, then 'sched_relax_domain_level' have no effect since diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 5b3f31faed5..46ece3fba6f 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -312,3 +312,12 @@ When: 2.6.26 Why: Implementation became generic; users should now include linux/semaphore.h instead. Who: Matthew Wilcox <willy@linux.intel.com> + +--------------------------- + +What: CONFIG_THERMAL_HWMON +When: January 2009 +Why: This option was introduced just to allow older lm-sensors userspace + to keep working over the upgrade to 2.6.26. At the scheduled time of + removal fixed lm-sensors (2.x or 3.x) should be readily available. +Who: Rene Herman <rene.herman@gmail.com> diff --git a/Documentation/ftrace.txt b/Documentation/ftrace.txt new file mode 100644 index 00000000000..13e4bf054c3 --- /dev/null +++ b/Documentation/ftrace.txt @@ -0,0 +1,1353 @@ + ftrace - Function Tracer + ======================== + +Copyright 2008 Red Hat Inc. +Author: Steven Rostedt <srostedt@redhat.com> + + +Introduction +------------ + +Ftrace is an internal tracer designed to help out developers and +designers of systems to find what is going on inside the kernel. +It can be used for debugging or analyzing latencies and performance +issues that take place outside of user-space. + +Although ftrace is the function tracer, it also includes an +infrastructure that allows for other types of tracing. Some of the +tracers that are currently in ftrace is a tracer to trace +context switches, the time it takes for a high priority task to +run after it was woken up, the time interrupts are disabled, and +more. + + +The File System +--------------- + +Ftrace uses the debugfs file system to hold the control files as well +as the files to display output. + +To mount the debugfs system: + + # mkdir /debug + # mount -t debugfs nodev /debug + + +That's it! (assuming that you have ftrace configured into your kernel) + +After mounting the debugfs, you can see a directory called +"tracing". This directory contains the control and output files +of ftrace. Here is a list of some of the key files: + + + Note: all time values are in microseconds. + + current_tracer : This is used to set or display the current tracer + that is configured. + + available_tracers : This holds the different types of tracers that + has been compiled into the kernel. The tracers + listed here can be configured by echoing in their + name into current_tracer. + + tracing_enabled : This sets or displays whether the current_tracer + is activated and tracing or not. Echo 0 into this + file to disable the tracer or 1 (or non-zero) to + enable it. + + trace : This file holds the output of the trace in a human readable + format. + + latency_trace : This file shows the same trace but the information + is organized more to display possible latencies + in the system. + + trace_pipe : The output is the same as the "trace" file but this + file is meant to be streamed with live tracing. + Reads from this file will block until new data + is retrieved. Unlike the "trace" and "latency_trace" + files, this file is a consumer. This means reading + from this file causes sequential reads to display + more current data. Once data is read from this + file, it is consumed, and will not be read + again with a sequential read. The "trace" and + "latency_trace" files are static, and if the + tracer isn't adding more data, they will display + the same information every time they are read. + + iter_ctrl : This file lets the user control the amount of data + that is displayed in one of the above output + files. + + trace_max_latency : Some of the tracers record the max latency. + For example, the time interrupts are disabled. + This time is saved in this file. The max trace + will also be stored, and displayed by either + "trace" or "latency_trace". A new max trace will + only be recorded if the latency is greater than + the value in this file. (in microseconds) + + trace_entries : This sets or displays the number of trace + entries each CPU buffer can hold. The tracer buffers + are the same size for each CPU, so care must be + taken when modifying the trace_entries. The number + of actually entries will be the number given + times the number of possible CPUS. The buffers + are saved as individual pages, and the actual entries + will always be rounded up to entries per page. + + This can only be updated when the current_tracer + is set to "none". + + NOTE: It is planned on changing the allocated buffers + from being the number of possible CPUS to + the number of online CPUS. + + tracing_cpumask : This is a mask that lets the user only trace + on specified CPUS. The format is a hex string + representing the CPUS. + + set_ftrace_filter : When dynamic ftrace is configured in, the + code is dynamically modified to disable calling + of the function profiler (mcount). This lets + tracing be configured in with practically no overhead + in performance. This also has a side effect of + enabling or disabling specific functions to be + traced. Echoing in names of functions into this + file will limit the trace to only those files. + + set_ftrace_notrace: This has the opposite effect that + set_ftrace_filter has. Any function that is added + here will not be traced. If a function exists + in both set_ftrace_filter and set_ftrace_notrace + the function will _not_ bet traced. + + available_filter_functions : When a function is encountered the first + time by the dynamic tracer, it is recorded and + later the call is converted into a nop. This file + lists the functions that have been recorded + by the dynamic tracer and these functions can + be used to set the ftrace filter by the above + "set_ftrace_filter" file. + + +The Tracers +----------- + +Here are the list of current tracers that can be configured. + + ftrace - function tracer that uses mcount to trace all functions. + It is possible to filter out which functions that are + traced when dynamic ftrace is configured in. + + sched_switch - traces the context switches between tasks. + + irqsoff - traces the areas that disable interrupts and saves off + the trace with the longest max latency. + See tracing_max_latency. When a new max is recorded, + it replaces the old trace. It is best to view this + trace with the latency_trace file. + + preemptoff - Similar to irqsoff but traces and records the time + preemption is disabled. + + preemptirqsoff - Similar to irqsoff and preemptoff, but traces and + records the largest time irqs and/or preemption is + disabled. + + wakeup - Traces and records the max latency that it takes for + the highest priority task to get scheduled after + it has been woken up. + + none - This is not a tracer. To remove all tracers from tracing + simply echo "none" into current_tracer. + + +Examples of using the tracer +---------------------------- + +Here are typical examples of using the tracers with only controlling +them with the debugfs interface (without using any user-land utilities). + +Output format: +-------------- + +Here's an example of the output format of the file "trace" + + -------- +# tracer: ftrace +# +# TASK-PID CPU# TIMESTAMP FUNCTION +# | | | | | + bash-4251 [01] 10152.583854: path_put <-path_walk + bash-4251 [01] 10152.583855: dput <-path_put + bash-4251 [01] 10152.583855: _atomic_dec_and_lock <-dput + -------- + +A header is printed with the trace that is represented. In this case +the tracer is "ftrace". Then a header showing the format. Task name +"bash", the task PID "4251", the CPU that it was running on +"01", the timestamp in <secs>.<usecs> format, the function name that was +traced "path_put" and the parent function that called this function +"path_walk". + +The sched_switch tracer also includes tracing of task wake ups and +context switches. + + ksoftirqd/1-7 [01] 1453.070013: 7:115:R + 2916:115:S + ksoftirqd/1-7 [01] 1453.070013: 7:115:R + 10:115:S + ksoftirqd/1-7 [01] 1453.070013: 7:115:R ==> 10:115:R + events/1-10 [01] 1453.070013: 10:115:S ==> 2916:115:R + kondemand/1-2916 [01] 1453.070013: 2916:115:S ==> 7:115:R + ksoftirqd/1-7 [01] 1453.070013: 7:115:S ==> 0:140:R + +Wake ups are represented by a "+" and the context switches show +"==>". The format is: + + Context switches: + + Previous task Next Task + + <pid>:<prio>:<state> ==> <pid>:<prio>:<state> + + Wake ups: + + Current task Task waking up + + <pid>:<prio>:<state> + <pid>:<prio>:<state> + +The prio is the internal kernel priority, which is inverse to the +priority that is usually displayed by user-space tools. Zero represents +the highest priority (99). Prio 100 starts the "nice" priorities with +100 being equal to nice -20 and 139 being nice 19. The prio "140" is +reserved for the idle task which is the lowest priority thread (pid 0). + + +Latency trace format +-------------------- + +For traces that display latency times, the latency_trace file gives +a bit more information to see why a latency happened. Here's a typical +trace. + +# tracer: irqsoff +# +irqsoff latency trace v1.1.5 on 2.6.26-rc8 +-------------------------------------------------------------------- + latency: 97 us, #3/3, CPU#0 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:2) + ----------------- + | task: swapper-0 (uid:0 nice:0 policy:0 rt_prio:0) + ----------------- + => started at: apic_timer_interrupt + => ended at: do_softirq + +# _------=> CPU# +# / _-----=> irqs-off +# | / _----=> need-resched +# || / _---=> hardirq/softirq +# ||| / _--=> preempt-depth +# |||| / +# ||||| delay +# cmd pid ||||| time | caller +# \ / ||||| \ | / + <idle>-0 0d..1 0us+: trace_hardirqs_off_thunk (apic_timer_interrupt) + <idle>-0 0d.s. 97us : __do_softirq (do_softirq) + <idle>-0 0d.s1 98us : trace_hardirqs_on (do_softirq) + + +vim:ft=help + + +This shows that the current tracer is "irqsoff" tracing the time +interrupts are disabled. It gives the trace version and the kernel +this was executed on (2.6.26-rc8). Then it displays the max latency +in microsecs (97 us). The number of trace entries displayed +by the total number recorded (both are three: #3/3). The type of +preemption that was used (PREEMPT). VP, KP, SP, and HP are always zero +and reserved for later use. #P is the number of online CPUS (#P:2). + +The task is the process that was running when the latency happened. +(swapper pid: 0). + +The start and stop that caused the latencies: + + apic_timer_interrupt is where the interrupts were disabled. + do_softirq is where they were enabled again. + +The next lines after the header are the trace itself. The header +explains which is which. + + cmd: The name of the process in the trace. + + pid: The PID of that process. + + CPU#: The CPU that the process was running on. + + irqs-off: 'd' interrupts are disabled. '.' otherwise. + + need-resched: 'N' task need_resched is set, '.' otherwise. + + hardirq/softirq: + 'H' - hard irq happened inside a softirq. + 'h' - hard irq is running + 's' - soft irq is running + '.' - normal context. + + preempt-depth: The level of preempt_disabled + +The above is mostly meaningful for kernel developers. + + time: This differs from the trace output where as the trace output + contained a absolute timestamp. This timestamp is relative + to the start of the first entry in the the trace. + + delay: This is just to help catch your eye a bit better. And + needs to be fixed to be only relative to the same CPU. + The marks is determined by the difference between this + current trace and the next trace. + '!' - greater than preempt_mark_thresh (default 100) + '+' - greater than 1 microsecond + ' ' - less than or equal to 1 microsecond. + + The rest is the same as the 'trace' file. + + +iter_ctrl +--------- + +The iter_ctrl file is used to control what gets printed in the trace +output. To see what is available, simply cat the file: + + cat /debug/tracing/iter_ctrl + print-parent nosym-offset nosym-addr noverbose noraw nohex nobin \ + noblock nostacktrace nosched-tree + +To disable one of the options, echo in the option appended with "no". + + echo noprint-parent > /debug/tracing/iter_ctrl + +To enable an option, leave off the "no". + + echo sym-offest > /debug/tracing/iter_ctrl + +Here are the available options: + + print-parent - On function traces, display the calling function + as well as the function being traced. + + print-parent: + bash-4000 [01] 1477.606694: simple_strtoul <-strict_strtoul + + noprint-parent: + bash-4000 [01] 1477.606694: simple_strtoul + + + sym-offset - Display not only the function name, but also the offset + in the function. For example, instead of seeing just + "ktime_get" you will see "ktime_get+0xb/0x20" + + sym-offset: + bash-4000 [01] 1477.606694: simple_strtoul+0x6/0xa0 + + sym-addr - this will also display the function address as well as + the function name. + + sym-addr: + bash-4000 [01] 1477.606694: simple_strtoul <c0339346> + + verbose - This deals with the latency_trace file. + + bash 4000 1 0 00000000 00010a95 [58127d26] 1720.415ms \ + (+0.000ms): simple_strtoul (strict_strtoul) + + raw - This will display raw numbers. This option is best for use with + user applications that can translate the raw numbers better than + having it done in the kernel. + + hex - similar to raw, but the numbers will be in a hexadecimal format. + + bin - This will print out the formats in raw binary. + + block - TBD (needs update) + + stacktrace - This is one of the options that changes the trace itself. + When a trace is recorded, so is the stack of functions. + This allows for back traces of trace sites. + + sched-tree - TBD (any users??) + + +sched_switch +------------ + +This tracer simply records schedule switches. Here's an example +on how to implement it. + + # echo sched_switch > /debug/tracing/current_tracer + # echo 1 > /debug/tracing/tracing_enabled + # sleep 1 + # echo 0 > /debug/tracing/tracing_enabled + # cat /debug/tracing/trace + +# tracer: sched_switch +# +# TASK-PID CPU# TIMESTAMP FUNCTION +# | | | | | + bash-3997 [01] 240.132281: 3997:120:R + 4055:120:R + bash-3997 [01] 240.132284: 3997:120:R ==> 4055:120:R + sleep-4055 [01] 240.132371: 4055:120:S ==> 3997:120:R + bash-3997 [01] 240.132454: 3997:120:R + 4055:120:S + bash-3997 [01] 240.132457: 3997:120:R ==> 4055:120:R + sleep-4055 [01] 240.132460: 4055:120:D ==> 3997:120:R + bash-3997 [01] 240.132463: 3997:120:R + 4055:120:D + bash-3997 [01] 240.132465: 3997:120:R ==> 4055:120:R + <idle>-0 [00] 240.132589: 0:140:R + 4:115:S + <idle>-0 [00] 240.132591: 0:140:R ==> 4:115:R + ksoftirqd/0-4 [00] 240.132595: 4:115:S ==> 0:140:R + <idle>-0 [00] 240.132598: 0:140:R + 4:115:S + <idle>-0 [00] 240.132599: 0:140:R ==> 4:115:R + ksoftirqd/0-4 [00] 240.132603: 4:115:S ==> 0:140:R + sleep-4055 [01] 240.133058: 4055:120:S ==> 3997:120:R + [...] + + +As we have discussed previously about this format, the header shows +the name of the trace and points to the options. The "FUNCTION" +is a misnomer since here it represents the wake ups and context +switches. + +The sched_switch only lists the wake ups (represented with '+') +and context switches ('==>') with the previous task or current +first followed by the next task or task waking up. The format for both +of these is PID:KERNEL-PRIO:TASK-STATE. Remember that the KERNEL-PRIO +is the inverse of the actual priority with zero (0) being the highest +priority and the nice values starting at 100 (nice -20). Below is +a quick chart to map the kernel priority to user land priorities. + + Kernel priority: 0 to 99 ==> user RT priority 99 to 0 + Kernel priority: 100 to 139 ==> user nice -20 to 19 + Kernel priority: 140 ==> idle task priority + +The task states are: + + R - running : wants to run, may not actually be running + S - sleep : process is waiting to be woken up (handles signals) + D - deep sleep : process must be woken up (ignores signals) + T - stopped : process suspended + t - traced : process is being traced (with something like gdb) + Z - zombie : process waiting to be cleaned up + X - unknown + + +ftrace_enabled +-------------- + +The following tracers give different output depending on whether +or not the sysctl ftrace_enabled is set. To set ftrace_enabled, +one can either use the sysctl function or set it via the proc +file system interface. + + sysctl kernel.ftrace_enabled=1 + + or + + echo 1 > /proc/sys/kernel/ftrace_enabled + +To disable ftrace_enabled simply replace the '1' with '0' in +the above commands. + +When ftrace_enabled is set the tracers will also record the functions +that are within the trace. The descriptions of the tracers +will also show an example with ftrace enabled. + + +irqsoff +------- + +When interrupts are disabled, the CPU can not react to any other +external event (besides NMIs and SMIs). This prevents the timer +interrupt from triggering or the mouse interrupt from letting the +kernel know of a new mouse event. The result is a latency with the +reaction time. + +The irqsoff tracer tracks the time interrupts are disabled and when +they are re-enabled. When a new maximum latency is hit, it saves off +the trace so that it may be retrieved at a later time. Every time a +new maximum in reached, the old saved trace is discarded and the new +trace is saved. + +To reset the maximum, echo 0 into tracing_max_latency. Here's an +example: + + # echo irqsoff > /debug/tracing/current_tracer + # echo 0 > /debug/tracing/tracing_max_latency + # echo 1 > /debug/tracing/tracing_enabled + # ls -ltr + [...] + # echo 0 > /debug/tracing/tracing_enabled + # cat /debug/tracing/latency_trace +# tracer: irqsoff +# +irqsoff latency trace v1.1.5 on 2.6.26-rc8 +-------------------------------------------------------------------- + latency: 6 us, #3/3, CPU#1 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:2) + ----------------- + | task: bash-4269 (uid:0 nice:0 policy:0 rt_prio:0) + ----------------- + => started at: copy_page_range + => ended at: copy_page_range + +# _------=> CPU# +# / _-----=> irqs-off +# | / _----=> need-resched +# || / _---=> hardirq/softirq +# ||| / _--=> preempt-depth +# |||| / +# ||||| delay +# cmd pid ||||| time | caller +# \ / ||||| \ | / + bash-4269 1...1 0us+: _spin_lock (copy_page_range) + bash-4269 1...1 7us : _spin_unlock (copy_page_range) + bash-4269 1...2 7us : trace_preempt_on (copy_page_range) + + +vim:ft=help + +Here we see that that we had a latency of 6 microsecs (which is +very good). The spin_lock in copy_page_range disabled interrupts. +The difference between the 6 and the displayed timestamp 7us is +because the clock must have incremented between the time of recording +the max latency and recording the function that had that latency. + +Note the above had ftrace_enabled not set. If we set the ftrace_enabled +we get a much larger output: + +# tracer: irqsoff +# +irqsoff latency trace v1.1.5 on 2.6.26-rc8 +-------------------------------------------------------------------- + latency: 50 us, #101/101, CPU#0 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:2) + ----------------- + | task: ls-4339 (uid:0 nice:0 policy:0 rt_prio:0) + ----------------- + => started at: __alloc_pages_internal + => ended at: __alloc_pages_internal + +# _------=> CPU# +# / _-----=> irqs-off +# | / _----=> need-resched +# || / _---=> hardirq/softirq +# ||| / _--=> preempt-depth +# |||| / +# ||||| delay +# cmd pid ||||| time | caller +# \ / ||||| \ | / + ls-4339 0...1 0us+: get_page_from_freelist (__alloc_pages_internal) + ls-4339 0d..1 3us : rmqueue_bulk (get_page_from_freelist) + ls-4339 0d..1 3us : _spin_lock (rmqueue_bulk) + ls-4339 0d..1 4us : add_preempt_count (_spin_lock) + ls-4339 0d..2 4us : __rmqueue (rmqueue_bulk) + ls-4339 0d..2 5us : __rmqueue_smallest (__rmqueue) + ls-4339 0d..2 5us : __mod_zone_page_state (__rmqueue_smallest) + ls-4339 0d..2 6us : __rmqueue (rmqueue_bulk) + ls-4339 0d..2 6us : __rmqueue_smallest (__rmqueue) + ls-4339 0d..2 7us : __mod_zone_page_state (__rmqueue_smallest) + ls-4339 0d..2 7us : __rmqueue (rmqueue_bulk) + ls-4339 0d..2 8us : __rmqueue_smallest (__rmqueue) +[...] + ls-4339 0d..2 46us : __rmqueue_smallest (__rmqueue) + ls-4339 0d..2 47us : __mod_zone_page_state (__rmqueue_smallest) + ls-4339 0d..2 47us : __rmqueue (rmqueue_bulk) + ls-4339 0d..2 48us : __rmqueue_smallest (__rmqueue) + ls-4339 0d..2 48us : __mod_zone_page_state (__rmqueue_smallest) + ls-4339 0d..2 49us : _spin_unlock (rmqueue_bulk) + ls-4339 0d..2 49us : sub_preempt_count (_spin_unlock) + ls-4339 0d..1 50us : get_page_from_freelist (__alloc_pages_internal) + ls-4339 0d..2 51us : trace_hardirqs_on (__alloc_pages_internal) + + +vim:ft=help + + +Here we traced a 50 microsecond latency. But we also see all the +functions that were called during that time. Note that enabling +function tracing we endure an added overhead. This overhead may +extend the latency times. But never the less, this trace has provided +some very helpful debugging. + + +preemptoff +---------- + +When preemption is disabled we may be able to receive interrupts but +the task can not be preempted and a higher priority task must wait +for preemption to be enabled again before it can preempt a lower +priority task. + +The preemptoff tracer traces the places that disables preemption. +Like the irqsoff, it records the maximum latency that preemption +was disabled. The control of preemptoff is much like the irqsoff. + + # echo preemptoff > /debug/tracing/current_tracer + # echo 0 > /debug/tracing/tracing_max_latency + # echo 1 > /debug/tracing/tracing_enabled + # ls -ltr + [...] + # echo 0 > /debug/tracing/tracing_enabled + # cat /debug/tracing/latency_trace +# tracer: preemptoff +# +preemptoff latency trace v1.1.5 on 2.6.26-rc8 +-------------------------------------------------------------------- + latency: 29 us, #3/3, CPU#0 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:2) + ----------------- + | task: sshd-4261 (uid:0 nice:0 policy:0 rt_prio:0) + ----------------- + => started at: do_IRQ + => ended at: __do_softirq + +# _------=> CPU# +# / _-----=> irqs-off +# | / _----=> need-resched +# || / _---=> hardirq/softirq +# ||| / _--=> preempt-depth +# |||| / +# ||||| delay +# cmd pid ||||| time | caller +# \ / ||||| \ | / + sshd-4261 0d.h. 0us+: irq_enter (do_IRQ) + sshd-4261 0d.s. 29us : _local_bh_enable (__do_softirq) + sshd-4261 0d.s1 30us : trace_preempt_on (__do_softirq) + + +vim:ft=help + +This has some more changes. Preemption was disabled when an interrupt +came in (notice the 'h'), and was enabled while doing a softirq. +(notice the 's'). But we also see that interrupts have been disabled +when entering the preempt off section and leaving it (the 'd'). +We do not know if interrupts were enabled in the mean time. + +# tracer: preemptoff +# +preemptoff latency trace v1.1.5 on 2.6.26-rc8 +-------------------------------------------------------------------- + latency: 63 us, #87/87, CPU#0 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:2) + ----------------- + | task: sshd-4261 (uid:0 nice:0 policy:0 rt_prio:0) + ----------------- + => started at: remove_wait_queue + => ended at: __do_softirq + +# _------=> CPU# +# / _-----=> irqs-off +# | / _----=> need-resched +# || / _---=> hardirq/softirq +# ||| / _--=> preempt-depth +# |||| / +# ||||| delay +# cmd pid ||||| time | caller +# \ / ||||| \ | / + sshd-4261 0d..1 0us : _spin_lock_irqsave (remove_wait_queue) + sshd-4261 0d..1 1us : _spin_unlock_irqrestore (remove_wait_queue) + sshd-4261 0d..1 2us : do_IRQ (common_interrupt) + sshd-4261 0d..1 2us : irq_enter (do_IRQ) + sshd-4261 0d..1 2us : idle_cpu (irq_enter) + sshd-4261 0d..1 3us : add_preempt_count (irq_enter) + sshd-4261 0d.h1 3us : idle_cpu (irq_enter) + sshd-4261 0d.h. 4us : handle_fasteoi_irq (do_IRQ) +[...] + sshd-4261 0d.h. 12us : add_preempt_count (_spin_lock) + sshd-4261 0d.h1 12us : ack_ioapic_quirk_irq (handle_fasteoi_irq) + sshd-4261 0d.h1 13us : move_native_irq (ack_ioapic_quirk_irq) + sshd-4261 0d.h1 13us : _spin_unlock (handle_fasteoi_irq) + sshd-4261 0d.h1 14us : sub_preempt_count (_spin_unlock) + sshd-4261 0d.h1 14us : irq_exit (do_IRQ) + sshd-4261 0d.h1 15us : sub_preempt_count (irq_exit) + sshd-4261 0d..2 15us : do_softirq (irq_exit) + sshd-4261 0d... 15us : __do_softirq (do_softirq) + sshd-4261 0d... 16us : __local_bh_disable (__do_softirq) + sshd-4261 0d... 16us+: add_preempt_count (__local_bh_disable) + sshd-4261 0d.s4 20us : add_preempt_count (__local_bh_disable) + sshd-4261 0d.s4 21us : sub_preempt_count (local_bh_enable) + sshd-4261 0d.s5 21us : sub_preempt_count (local_bh_enable) +[...] + sshd-4261 0d.s6 41us : add_preempt_count (__local_bh_disable) + sshd-4261 0d.s6 42us : sub_preempt_count (local_bh_enable) + sshd-4261 0d.s7 42us : sub_preempt_count (local_bh_enable) + sshd-4261 0d.s5 43us : add_preempt_count (__local_bh_disable) + sshd-4261 0d.s5 43us : sub_preempt_count (local_bh_enable_ip) + sshd-4261 0d.s6 44us : sub_preempt_count (local_bh_enable_ip) + sshd-4261 0d.s5 44us : add_preempt_count (__local_bh_disable) + sshd-4261 0d.s5 45us : sub_preempt_count (local_bh_enable) +[...] + sshd-4261 0d.s. 63us : _local_bh_enable (__do_softirq) + sshd-4261 0d.s1 64us : trace_preempt_on (__do_softirq) + + +The above is an example of the preemptoff trace with ftrace_enabled +set. Here we see that interrupts were disabled the entire time. +The irq_enter code lets us know that we entered an interrupt 'h'. +Before that, the functions being traced still show that it is not +in an interrupt, but we can see by the functions themselves that +this is not the case. + +Notice that the __do_softirq when called doesn't have a preempt_count. +It may seem that we missed a preempt enabled. What really happened +is that the preempt count is held on the threads stack and we +switched to the softirq stack (4K stacks in effect). The code +does not copy the preempt count, but because interrupts are disabled +we don't need to worry about it. Having a tracer like this is good +to let people know what really happens inside the kernel. + + +preemptirqsoff +-------------- + +Knowing the locations that have interrupts disabled or preemption +disabled for the longest times is helpful. But sometimes we would +like to know when either preemption and/or interrupts are disabled. + +The following code: + + local_irq_disable(); + call_function_with_irqs_off(); + preempt_disable(); + call_function_with_irqs_and_preemption_off(); + local_irq_enable(); + call_function_with_preemption_off(); + preempt_enable(); + +The irqsoff tracer will record the total length of +call_function_with_irqs_off() and +call_function_with_irqs_and_preemption_off(). + +The preemptoff tracer will record the total length of +call_function_with_irqs_and_preemption_off() and +call_function_with_preemption_off(). + +But neither will trace the time that interrupts and/or preemption +is disabled. This total time is the time that we can not schedule. +To record this time, use the preemptirqsoff tracer. + +Again, using this trace is much like the irqsoff and preemptoff tracers. + + # echo preemptoff > /debug/tracing/current_tracer + # echo 0 > /debug/tracing/tracing_max_latency + # echo 1 > /debug/tracing/tracing_enabled + # ls -ltr + [...] + # echo 0 > /debug/tracing/tracing_enabled + # cat /debug/tracing/latency_trace +# tracer: preemptirqsoff +# +preemptirqsoff latency trace v1.1.5 on 2.6.26-rc8 +-------------------------------------------------------------------- + latency: 293 us, #3/3, CPU#0 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:2) + ----------------- + | task: ls-4860 (uid:0 nice:0 policy:0 rt_prio:0) + ----------------- + => started at: apic_timer_interrupt + => ended at: __do_softirq + +# _------=> CPU# +# / _-----=> irqs-off +# | / _----=> need-resched +# || / _---=> hardirq/softirq +# ||| / _--=> preempt-depth +# |||| / +# ||||| delay +# cmd pid ||||| time | caller +# \ / ||||| \ | / + ls-4860 0d... 0us!: trace_hardirqs_off_thunk (apic_timer_interrupt) + ls-4860 0d.s. 294us : _local_bh_enable (__do_softirq) + ls-4860 0d.s1 294us : trace_preempt_on (__do_softirq) + + +vim:ft=help + + +The trace_hardirqs_off_thunk is called from assembly on x86 when +interrupts are disabled in the assembly code. Without the function +tracing, we don't know if interrupts were enabled within the preemption +points. We do see that it started with preemption enabled. + +Here is a trace with ftrace_enabled set: + + +# tracer: preemptirqsoff +# +preemptirqsoff latency trace v1.1.5 on 2.6.26-rc8 +-------------------------------------------------------------------- + latency: 105 us, #183/183, CPU#0 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:2) + ----------------- + | task: sshd-4261 (uid:0 nice:0 policy:0 rt_prio:0) + ----------------- + => started at: write_chan + => ended at: __do_softirq + +# _------=> CPU# +# / _-----=> irqs-off +# | / _----=> need-resched +# || / _---=> hardirq/softirq +# ||| / _--=> preempt-depth +# |||| / +# ||||| delay +# cmd pid ||||| time | caller +# \ / ||||| \ | / + ls-4473 0.N.. 0us : preempt_schedule (write_chan) + ls-4473 0dN.1 1us : _spin_lock (schedule) + ls-4473 0dN.1 2us : add_preempt_count (_spin_lock) + ls-4473 0d..2 2us : put_prev_task_fair (schedule) +[...] + ls-4473 0d..2 13us : set_normalized_timespec (ktime_get_ts) + ls-4473 0d..2 13us : __switch_to (schedule) + sshd-4261 0d..2 14us : finish_task_switch (schedule) + sshd-4261 0d..2 14us : _spin_unlock_irq (finish_task_switch) + sshd-4261 0d..1 15us : add_preempt_count (_spin_lock_irqsave) + sshd-4261 0d..2 16us : _spin_unlock_irqrestore (hrtick_set) + sshd-4261 0d..2 16us : do_IRQ (common_interrupt) + sshd-4261 0d..2 17us : irq_enter (do_IRQ) + sshd-4261 0d..2 17us : idle_cpu (irq_enter) + sshd-4261 0d..2 18us : add_preempt_count (irq_enter) + sshd-4261 0d.h2 18us : idle_cpu (irq_enter) + sshd-4261 0d.h. 18us : handle_fasteoi_irq (do_IRQ) + sshd-4261 0d.h. 19us : _spin_lock (handle_fasteoi_irq) + sshd-4261 0d.h. 19us : add_preempt_count (_spin_lock) + sshd-4261 0d.h1 20us : _spin_unlock (handle_fasteoi_irq) + sshd-4261 0d.h1 20us : sub_preempt_count (_spin_unlock) +[...] + sshd-4261 0d.h1 28us : _spin_unlock (handle_fasteoi_irq) + sshd-4261 0d.h1 29us : sub_preempt_count (_spin_unlock) + sshd-4261 0d.h2 29us : irq_exit (do_IRQ) + sshd-4261 0d.h2 29us : sub_preempt_count (irq_exit) + sshd-4261 0d..3 30us : do_softirq (irq_exit) + sshd-4261 0d... 30us : __do_softirq (do_softirq) + sshd-4261 0d... 31us : __local_bh_disable (__do_softirq) + sshd-4261 0d... 31us+: add_preempt_count (__local_bh_disable) + sshd-4261 0d.s4 34us : add_preempt_count (__local_bh_disable) +[...] + sshd-4261 0d.s3 43us : sub_preempt_count (local_bh_enable_ip) + sshd-4261 0d.s4 44us : sub_preempt_count (local_bh_enable_ip) + sshd-4261 0d.s3 44us : smp_apic_timer_interrupt (apic_timer_interrupt) + sshd-4261 0d.s3 45us : irq_enter (smp_apic_timer_interrupt) + sshd-4261 0d.s3 45us : idle_cpu (irq_enter) + sshd-4261 0d.s3 46us : add_preempt_count (irq_enter) + sshd-4261 0d.H3 46us : idle_cpu (irq_enter) + sshd-4261 0d.H3 47us : hrtimer_interrupt (smp_apic_timer_interrupt) + sshd-4261 0d.H3 47us : ktime_get (hrtimer_interrupt) +[...] + sshd-4261 0d.H3 81us : tick_program_event (hrtimer_interrupt) + sshd-4261 0d.H3 82us : ktime_get (tick_program_event) + sshd-4261 0d.H3 82us : ktime_get_ts (ktime_get) + sshd-4261 0d.H3 83us : getnstimeofday (ktime_get_ts) + sshd-4261 0d.H3 83us : set_normalized_timespec (ktime_get_ts) + sshd-4261 0d.H3 84us : clockevents_program_event (tick_program_event) + sshd-4261 0d.H3 84us : lapic_next_event (clockevents_program_event) + sshd-4261 0d.H3 85us : irq_exit (smp_apic_timer_interrupt) + sshd-4261 0d.H3 85us : sub_preempt_count (irq_exit) + sshd-4261 0d.s4 86us : sub_preempt_count (irq_exit) + sshd-4261 0d.s3 86us : add_preempt_count (__local_bh_disable) +[...] + sshd-4261 0d.s1 98us : sub_preempt_count (net_rx_action) + sshd-4261 0d.s. 99us : add_preempt_count (_spin_lock_irq) + sshd-4261 0d.s1 99us+: _spin_unlock_irq (run_timer_softirq) + sshd-4261 0d.s. 104us : _local_bh_enable (__do_softirq) + sshd-4261 0d.s. 104us : sub_preempt_count (_local_bh_enable) + sshd-4261 0d.s. 105us : _local_bh_enable (__do_softirq) + sshd-4261 0d.s1 105us : trace_preempt_on (__do_softirq) + + +This is a very interesting trace. It started with the preemption of +the ls task. We see that the task had the "need_resched" bit set +with the 'N' in the trace. Interrupts are disabled in the spin_lock +and the trace started. We see that a schedule took place to run +sshd. When the interrupts were enabled we took an interrupt. +On return of the interrupt the softirq ran. We took another interrupt +while running the softirq as we see with the capital 'H'. + + +wakeup +------ + +In Real-Time environment it is very important to know the wakeup +time it takes for the highest priority task that wakes up to the +time it executes. This is also known as "schedule latency". +I stress the point that this is about RT tasks. It is also important +to know the scheduling latency of non-RT tasks, but the average +schedule latency is better for non-RT tasks. Tools like +LatencyTop is more appropriate for such measurements. + +Real-Time environments is interested in the worst case latency. +That is the longest latency it takes for something to happen, and +not the average. We can have a very fast scheduler that may only +have a large latency once in a while, but that would not work well +with Real-Time tasks. The wakeup tracer was designed to record +the worst case wakeups of RT tasks. Non-RT tasks are not recorded +because the tracer only records one worst case and tracing non-RT +tasks that are unpredictable will overwrite the worst case latency +of RT tasks. + +Since this tracer only deals with RT tasks, we will run this slightly +different than we did with the previous tracers. Instead of performing +an 'ls' we will run 'sleep 1' under 'chrt' which changes the +priority of the task. + + # echo wakeup > /debug/tracing/current_tracer + # echo 0 > /debug/tracing/tracing_max_latency + # echo 1 > /debug/tracing/tracing_enabled + # chrt -f 5 sleep 1 + # echo 0 > /debug/tracing/tracing_enabled + # cat /debug/tracing/latency_trace +# tracer: wakeup +# +wakeup latency trace v1.1.5 on 2.6.26-rc8 +-------------------------------------------------------------------- + latency: 4 us, #2/2, CPU#1 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:2) + ----------------- + | task: sleep-4901 (uid:0 nice:0 policy:1 rt_prio:5) + ----------------- + +# _------=> CPU# +# / _-----=> irqs-off +# | / _----=> need-resched +# || / _---=> hardirq/softirq +# ||| / _--=> preempt-depth +# |||| / +# ||||| delay +# cmd pid ||||| time | caller +# \ / ||||| \ | / + <idle>-0 1d.h4 0us+: try_to_wake_up (wake_up_process) + <idle>-0 1d..4 4us : schedule (cpu_idle) + + +vim:ft=help + + +Running this on an idle system we see that it only took 4 microseconds +to perform the task switch. Note, since the trace marker in the +schedule is before the actual "switch" we stop the tracing when +the recorded task is about to schedule in. This may change if +we add a new marker at the end of the scheduler. + +Notice that the recorded task is 'sleep' with the PID of 4901 and it +has an rt_prio of 5. This priority is user-space priority and not +the internal kernel priority. The policy is 1 for SCHED_FIFO and 2 +for SCHED_RR. + +Doing the same with chrt -r 5 and ftrace_enabled set. + +# tracer: wakeup +# +wakeup latency trace v1.1.5 on 2.6.26-rc8 +-------------------------------------------------------------------- + latency: 50 us, #60/60, CPU#1 | (M:preempt VP:0, KP:0, SP:0 HP:0 #P:2) + ----------------- + | task: sleep-4068 (uid:0 nice:0 policy:2 rt_prio:5) + ----------------- + +# _------=> CPU# +# / _-----=> irqs-off +# | / _----=> need-resched +# || / _---=> hardirq/softirq +# ||| / _--=> preempt-depth +# |||| / +# ||||| delay +# cmd pid ||||| time | caller +# \ / ||||| \ | / +ksoftirq-7 1d.H3 0us : try_to_wake_up (wake_up_process) +ksoftirq-7 1d.H4 1us : sub_preempt_count (marker_probe_cb) +ksoftirq-7 1d.H3 2us : check_preempt_wakeup (try_to_wake_up) +ksoftirq-7 1d.H3 3us : update_curr (check_preempt_wakeup) +ksoftirq-7 1d.H3 4us : calc_delta_mine (update_curr) +ksoftirq-7 1d.H3 5us : __resched_task (check_preempt_wakeup) +ksoftirq-7 1d.H3 6us : task_wake_up_rt (try_to_wake_up) +ksoftirq-7 1d.H3 7us : _spin_unlock_irqrestore (try_to_wake_up) +[...] +ksoftirq-7 1d.H2 17us : irq_exit (smp_apic_timer_interrupt) +ksoftirq-7 1d.H2 18us : sub_preempt_count (irq_exit) +ksoftirq-7 1d.s3 19us : sub_preempt_count (irq_exit) +ksoftirq-7 1..s2 20us : rcu_process_callbacks (__do_softirq) +[...] +ksoftirq-7 1..s2 26us : __rcu_process_callbacks (rcu_process_callbacks) +ksoftirq-7 1d.s2 27us : _local_bh_enable (__do_softirq) +ksoftirq-7 1d.s2 28us : sub_preempt_count (_local_bh_enable) +ksoftirq-7 1.N.3 29us : sub_preempt_count (ksoftirqd) +ksoftirq-7 1.N.2 30us : _cond_resched (ksoftirqd) +ksoftirq-7 1.N.2 31us : __cond_resched (_cond_resched) +ksoftirq-7 1.N.2 32us : add_preempt_count (__cond_resched) +ksoftirq-7 1.N.2 33us : schedule (__cond_resched) +ksoftirq-7 1.N.2 33us : add_preempt_count (schedule) +ksoftirq-7 1.N.3 34us : hrtick_clear (schedule) +ksoftirq-7 1dN.3 35us : _spin_lock (schedule) +ksoftirq-7 1dN.3 36us : add_preempt_count (_spin_lock) +ksoftirq-7 1d..4 37us : put_prev_task_fair (schedule) +ksoftirq-7 1d..4 38us : update_curr (put_prev_task_fair) +[...] +ksoftirq-7 1d..5 47us : _spin_trylock (tracing_record_cmdline) +ksoftirq-7 1d..5 48us : add_preempt_count (_spin_trylock) +ksoftirq-7 1d..6 49us : _spin_unlock (tracing_record_cmdline) +ksoftirq-7 1d..6 49us : sub_preempt_count (_spin_unlock) +ksoftirq-7 1d..4 50us : schedule (__cond_resched) + +The interrupt went off while running ksoftirqd. This task runs at +SCHED_OTHER. Why didn't we see the 'N' set early? This may be +a harmless bug with x86_32 and 4K stacks. The need_reched() function +that tests if we need to reschedule looks on the actual stack. +Where as the setting of the NEED_RESCHED bit happens on the +task's stack. But because we are in a hard interrupt, the test +is with the interrupts stack which has that to be false. We don't +see the 'N' until we switch back to the task's stack. + +ftrace +------ + +ftrace is not only the name of the tracing infrastructure, but it +is also a name of one of the tracers. The tracer is the function +tracer. Enabling the function tracer can be done from the +debug file system. Make sure the ftrace_enabled is set otherwise +this tracer is a nop. + + # sysctl kernel.ftrace_enabled=1 + # echo ftrace > /debug/tracing/current_tracer + # echo 1 > /debug/tracing/tracing_enabled + # usleep 1 + # echo 0 > /debug/tracing/tracing_enabled + # cat /debug/tracing/trace +# tracer: ftrace +# +# TASK-PID CPU# TIMESTAMP FUNCTION +# | | | | | + bash-4003 [00] 123.638713: finish_task_switch <-schedule + bash-4003 [00] 123.638714: _spin_unlock_irq <-finish_task_switch + bash-4003 [00] 123.638714: sub_preempt_count <-_spin_unlock_irq + bash-4003 [00] 123.638715: hrtick_set <-schedule + bash-4003 [00] 123.638715: _spin_lock_irqsave <-hrtick_set + bash-4003 [00] 123.638716: add_preempt_count <-_spin_lock_irqsave + bash-4003 [00] 123.638716: _spin_unlock_irqrestore <-hrtick_set + bash-4003 [00] 123.638717: sub_preempt_count <-_spin_unlock_irqrestore + bash-4003 [00] 123.638717: hrtick_clear <-hrtick_set + bash-4003 [00] 123.638718: sub_preempt_count <-schedule + bash-4003 [00] 123.638718: sub_preempt_count <-preempt_schedule + bash-4003 [00] 123.638719: wait_for_completion <-__stop_machine_run + bash-4003 [00] 123.638719: wait_for_common <-wait_for_completion + bash-4003 [00] 123.638720: _spin_lock_irq <-wait_for_common + bash-4003 [00] 123.638720: add_preempt_count <-_spin_lock_irq +[...] + + +Note: It is sometimes better to enable or disable tracing directly from +a program, because the buffer may be overflowed by the echo commands +before you get to the point you want to trace. It is also easier to +stop the tracing at the point that you hit the part that you are +interested in. Since the ftrace buffer is a ring buffer with the +oldest data being overwritten, usually it is sufficient to start the +tracer with an echo command but have you code stop it. Something +like the following is usually appropriate for this. + +int trace_fd; +[...] +int main(int argc, char *argv[]) { + [...] + trace_fd = open("/debug/tracing/tracing_enabled", O_WRONLY); + [...] + if (condition_hit()) { + write(trace_fd, "0", 1); + } + [...] +} + + +dynamic ftrace +-------------- + +If CONFIG_DYNAMIC_FTRACE is set, then the system will run with +virtually no overhead when function tracing is disabled. The way +this works is the mcount function call (placed at the start of +every kernel function, produced by the -pg switch in gcc), starts +of pointing to a simple return. + +When dynamic ftrace is initialized, it calls kstop_machine to make it +act like a uniprocessor so that it can freely modify code without +worrying about other processors executing that same code. At +initialization, the mcount calls are change to call a "record_ip" +function. After this, the first time a kernel function is called, +it has the calling address saved in a hash table. + +Later on the ftraced kernel thread is awoken and will again call +kstop_machine if new functions have been recorded. The ftraced thread +will change all calls to mcount to "nop". Just calling mcount +and having mcount return has shown a 10% overhead. By converting +it to a nop, there is no recordable overhead to the system. + +One special side-effect to the recording of the functions being +traced, is that we can now selectively choose which functions we +want to trace and which ones we want the mcount calls to remain as +nops. + +Two files that contain to the enabling and disabling of recorded +functions are: + + set_ftrace_filter + +and + + set_ftrace_notrace + +A list of available functions that you can add to this files is listed +in: + + available_filter_functions + + # cat /debug/tracing/available_filter_functions +put_prev_task_idle +kmem_cache_create +pick_next_task_rt +get_online_cpus +pick_next_task_fair +mutex_lock +[...] + +If I'm only interested in sys_nanosleep and hrtimer_interrupt: + + # echo sys_nanosleep hrtimer_interrupt \ + > /debug/tracing/set_ftrace_filter + # echo ftrace > /debug/tracing/current_tracer + # echo 1 > /debug/tracing/tracing_enabled + # usleep 1 + # echo 0 > /debug/tracing/tracing_enabled + # cat /debug/tracing/trace +# tracer: ftrace +# +# TASK-PID CPU# TIMESTAMP FUNCTION +# | | | | | + usleep-4134 [00] 1317.070017: hrtimer_interrupt <-smp_apic_timer_interrupt + usleep-4134 [00] 1317.070111: sys_nanosleep <-syscall_call + <idle>-0 [00] 1317.070115: hrtimer_interrupt <-smp_apic_timer_interrupt + +To see what functions are being traced, you can cat the file: + + # cat /debug/tracing/set_ftrace_filter +hrtimer_interrupt +sys_nanosleep + + +Perhaps this isn't enough. The filters also allow simple wild cards. +Only the following is currently available + + <match>* - will match functions that begins with <match> + *<match> - will match functions that end with <match> + *<match>* - will match functions that have <match> in it + +Thats all the wild cards that are allowed. + + <match>*<match> will not work. + + # echo hrtimer_* > /debug/tracing/set_ftrace_filter + +Produces: + +# tracer: ftrace +# +# TASK-PID CPU# TIMESTAMP FUNCTION +# | | | | | + bash-4003 [00] 1480.611794: hrtimer_init <-copy_process + bash-4003 [00] 1480.611941: hrtimer_start <-hrtick_set + bash-4003 [00] 1480.611956: hrtimer_cancel <-hrtick_clear + bash-4003 [00] 1480.611956: hrtimer_try_to_cancel <-hrtimer_cancel + <idle>-0 [00] 1480.612019: hrtimer_get_next_event <-get_next_timer_interrupt + <idle>-0 [00] 1480.612025: hrtimer_get_next_event <-get_next_timer_interrupt + <idle>-0 [00] 1480.612032: hrtimer_get_next_event <-get_next_timer_interrupt + <idle>-0 [00] 1480.612037: hrtimer_get_next_event <-get_next_timer_interrupt + <idle>-0 [00] 1480.612382: hrtimer_get_next_event <-get_next_timer_interrupt + + +Notice that we lost the sys_nanosleep. + + # cat /debug/tracing/set_ftrace_filter +hrtimer_run_queues +hrtimer_run_pending +hrtimer_init +hrtimer_cancel +hrtimer_try_to_cancel +hrtimer_forward +hrtimer_start +hrtimer_reprogram +hrtimer_force_reprogram +hrtimer_get_next_event +hrtimer_interrupt +hrtimer_nanosleep +hrtimer_wakeup +hrtimer_get_remaining +hrtimer_get_res +hrtimer_init_sleeper + + +This is because the '>' and '>>' act just like they do in bash. +To rewrite the filters, use '>' +To append to the filters, use '>>' + +To clear out a filter so that all functions will be recorded again. + + # echo > /debug/tracing/set_ftrace_filter + # cat /debug/tracing/set_ftrace_filter + # + +Again, now we want to append. + + # echo sys_nanosleep > /debug/tracing/set_ftrace_filter + # cat /debug/tracing/set_ftrace_filter +sys_nanosleep + # echo hrtimer_* >> /debug/tracing/set_ftrace_filter + # cat /debug/tracing/set_ftrace_filter +hrtimer_run_queues +hrtimer_run_pending +hrtimer_init +hrtimer_cancel +hrtimer_try_to_cancel +hrtimer_forward +hrtimer_start +hrtimer_reprogram +hrtimer_force_reprogram +hrtimer_get_next_event +hrtimer_interrupt +sys_nanosleep +hrtimer_nanosleep +hrtimer_wakeup +hrtimer_get_remaining +hrtimer_get_res +hrtimer_init_sleeper + + +The set_ftrace_notrace prevents those functions from being traced. + + # echo '*preempt*' '*lock*' > /debug/tracing/set_ftrace_notrace + +Produces: + +# tracer: ftrace +# +# TASK-PID CPU# TIMESTAMP FUNCTION +# | | | | | + bash-4043 [01] 115.281644: finish_task_switch <-schedule + bash-4043 [01] 115.281645: hrtick_set <-schedule + bash-4043 [01] 115.281645: hrtick_clear <-hrtick_set + bash-4043 [01] 115.281646: wait_for_completion <-__stop_machine_run + bash-4043 [01] 115.281647: wait_for_common <-wait_for_completion + bash-4043 [01] 115.281647: kthread_stop <-stop_machine_run + bash-4043 [01] 115.281648: init_waitqueue_head <-kthread_stop + bash-4043 [01] 115.281648: wake_up_process <-kthread_stop + bash-4043 [01] 115.281649: try_to_wake_up <-wake_up_process + +We can see that there's no more lock or preempt tracing. + +ftraced +------- + +As mentioned above, when dynamic ftrace is configured in, a kernel +thread wakes up once a second and checks to see if there are mcount +calls that need to be converted into nops. If there is not, then +it simply goes back to sleep. But if there is, it will call +kstop_machine to convert the calls to nops. + +There may be a case that you do not want this added latency. +Perhaps you are doing some audio recording and this activity might +cause skips in the playback. There is an interface to disable +and enable the ftraced kernel thread. + + # echo 0 > /debug/tracing/ftraced_enabled + +This will disable the calling of the kstop_machine to update the +mcount calls to nops. Remember that there's a large overhead +to calling mcount. Without this kernel thread, that overhead will +exist. + +Any write to the ftraced_enabled file will cause the kstop_machine +to run if there are recorded calls to mcount. This means that a +user can manually perform the updates when they want to by simply +echoing a '0' into the ftraced_enabled file. + +The updates are also done at the beginning of enabling a tracer +that uses ftrace function recording. + + +trace_pipe +---------- + +The trace_pipe outputs the same as trace, but the effect on the +tracing is different. Every read from trace_pipe is consumed. +This means that subsequent reads will be different. The trace +is live. + + # echo ftrace > /debug/tracing/current_tracer + # cat /debug/tracing/trace_pipe > /tmp/trace.out & +[1] 4153 + # echo 1 > /debug/tracing/tracing_enabled + # usleep 1 + # echo 0 > /debug/tracing/tracing_enabled + # cat /debug/tracing/trace +# tracer: ftrace +# +# TASK-PID CPU# TIMESTAMP FUNCTION +# | | | | | + + # + # cat /tmp/trace.out + bash-4043 [00] 41.267106: finish_task_switch <-schedule + bash-4043 [00] 41.267106: hrtick_set <-schedule + bash-4043 [00] 41.267107: hrtick_clear <-hrtick_set + bash-4043 [00] 41.267108: wait_for_completion <-__stop_machine_run + bash-4043 [00] 41.267108: wait_for_common <-wait_for_completion + bash-4043 [00] 41.267109: kthread_stop <-stop_machine_run + bash-4043 [00] 41.267109: init_waitqueue_head <-kthread_stop + bash-4043 [00] 41.267110: wake_up_process <-kthread_stop + bash-4043 [00] 41.267110: try_to_wake_up <-wake_up_process + bash-4043 [00] 41.267111: select_task_rq_rt <-try_to_wake_up + + +Note, reading the trace_pipe will block until more input is added. +By changing the tracer, trace_pipe will issue an EOF. We needed +to set the ftrace tracer _before_ cating the trace_pipe file. + + +trace entries +------------- + +Having too much or not enough data can be troublesome in diagnosing +some issue in the kernel. The file trace_entries is used to modify +the size of the internal trace buffers. The numbers listed +is the number of entries that can be recorded per CPU. To know +the full size, multiply the number of possible CPUS with the +number of entries. + + # cat /debug/tracing/trace_entries +65620 + +Note, to modify this you must have tracing fulling disabled. To do that, +echo "none" into the current_tracer. + + # echo none > /debug/tracing/current_tracer + # echo 100000 > /debug/tracing/trace_entries + # cat /debug/tracing/trace_entries +100045 + + +Notice that we echoed in 100,000 but the size is 100,045. The entries +are held by individual pages. It allocates the number of pages it takes +to fulfill the request. If more entries may fit on the last page +it will add them. + + # echo 1 > /debug/tracing/trace_entries + # cat /debug/tracing/trace_entries +85 + +This shows us that 85 entries can fit on a single page. + +The number of pages that will be allocated is a percentage of available +memory. Allocating too much will produces an error. + + # echo 1000000000000 > /debug/tracing/trace_entries +-bash: echo: write error: Cannot allocate memory + # cat /debug/tracing/trace_entries +85 + diff --git a/Documentation/i2c/writing-clients b/Documentation/i2c/writing-clients index ee75cbace28..d4cd4126d1a 100644 --- a/Documentation/i2c/writing-clients +++ b/Documentation/i2c/writing-clients @@ -25,12 +25,23 @@ routines, and should be zero-initialized except for fields with data you provide. A client structure holds device-specific information like the driver model device node, and its I2C address. +/* iff driver uses driver model ("new style") binding model: */ + +static struct i2c_device_id foo_idtable[] = { + { "foo", my_id_for_foo }, + { "bar", my_id_for_bar }, + { } +}; + +MODULE_DEVICE_TABLE(i2c, foo_idtable); + static struct i2c_driver foo_driver = { .driver = { .name = "foo", }, /* iff driver uses driver model ("new style") binding model: */ + .id_table = foo_ids, .probe = foo_probe, .remove = foo_remove, @@ -173,10 +184,9 @@ handle may be used during foo_probe(). If foo_probe() reports success (zero not a negative status code) it may save the handle and use it until foo_remove() returns. That binding model is used by most Linux drivers. -Drivers match devices when i2c_client.driver_name and the driver name are -the same; this approach is used in several other busses that don't have -device typing support in the hardware. The driver and module name should -match, so hotplug/coldplug mechanisms will modprobe the driver. +The probe function is called when an entry in the id_table name field +matches the device's name. It is passed the entry that was matched so +the driver knows which one in the table matched. Device Creation (Standard driver model) diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index e07c432c731..b52f47d588b 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -295,7 +295,7 @@ and is between 256 and 4096 characters. It is defined in the file when initialising the APIC and IO-APIC components. apm= [APM] Advanced Power Management - See header of arch/i386/kernel/apm.c. + See header of arch/x86/kernel/apm_32.c. arcrimi= [HW,NET] ARCnet - "RIM I" (entirely mem-mapped) cards Format: <io>,<irq>,<nodeID> @@ -638,7 +638,7 @@ and is between 256 and 4096 characters. It is defined in the file elanfreq= [X86-32] See comment before function elanfreq_setup() in - arch/i386/kernel/cpu/cpufreq/elanfreq.c. + arch/x86/kernel/cpu/cpufreq/elanfreq.c. elevator= [IOSCHED] Format: {"anticipatory" | "cfq" | "deadline" | "noop"} @@ -1679,6 +1679,10 @@ and is between 256 and 4096 characters. It is defined in the file Format: <reboot_mode>[,<reboot_mode2>[,...]] See arch/*/kernel/reboot.c or arch/*/kernel/process.c + relax_domain_level= + [KNL, SMP] Set scheduler's default relax_domain_level. + See Documentation/cpusets.txt. + reserve= [KNL,BUGS] Force the kernel to ignore some iomem area reservetop= [X86-32] diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 17a6e46fbd4..17f1f91af35 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -81,23 +81,23 @@ inet_peer_minttl - INTEGER Minimum time-to-live of entries. Should be enough to cover fragment time-to-live on the reassembling side. This minimum time-to-live is guaranteed if the pool size is less than inet_peer_threshold. - Measured in jiffies(1). + Measured in seconds. inet_peer_maxttl - INTEGER Maximum time-to-live of entries. Unused entries will expire after this period of time if there is no memory pressure on the pool (i.e. when the number of entries in the pool is very small). - Measured in jiffies(1). + Measured in seconds. inet_peer_gc_mintime - INTEGER Minimum interval between garbage collection passes. This interval is in effect under high memory pressure on the pool. - Measured in jiffies(1). + Measured in seconds. inet_peer_gc_maxtime - INTEGER Minimum interval between garbage collection passes. This interval is in effect under low (or absent) memory pressure on the pool. - Measured in jiffies(1). + Measured in seconds. TCP variables: @@ -794,10 +794,6 @@ tag - INTEGER Allows you to write a number, which can be used as required. Default value is 0. -(1) Jiffie: internal timeunit for the kernel. On the i386 1/100s, on the -Alpha 1/1024s. See the HZ define in /usr/include/asm/param.h for the exact -value on your system. - Alexey Kuznetsov. kuznet@ms2.inr.ac.ru diff --git a/Documentation/networking/s2io.txt b/Documentation/networking/s2io.txt index 4bde53e85f3..1e28e2ddb90 100644 --- a/Documentation/networking/s2io.txt +++ b/Documentation/networking/s2io.txt @@ -83,9 +83,9 @@ Valid range: Limited by memory on system Default: 30 e. intr_type -Specifies interrupt type. Possible values 1(INTA), 2(MSI), 3(MSI-X) -Valid range: 1-3 -Default: 1 +Specifies interrupt type. Possible values 0(INTA), 2(MSI-X) +Valid values: 0, 2 +Default: 2 5. Performance suggestions General: diff --git a/Documentation/video4linux/CARDLIST.au0828 b/Documentation/video4linux/CARDLIST.au0828 index aaae360312e..86d1c8e7b18 100644 --- a/Documentation/video4linux/CARDLIST.au0828 +++ b/Documentation/video4linux/CARDLIST.au0828 @@ -1,4 +1,4 @@ 0 -> Unknown board (au0828) - 1 -> Hauppauge HVR950Q (au0828) [2040:7200] + 1 -> Hauppauge HVR950Q (au0828) [2040:7200,2040:7210,2040:7217,2040:721b,2040:721f,2040:7280,0fd9:0008] 2 -> Hauppauge HVR850 (au0828) [2040:7240] 3 -> DViCO FusionHDTV USB (au0828) [0fe9:d620] diff --git a/Documentation/vm/slabinfo.c b/Documentation/vm/slabinfo.c index e4230ed16ee..df3227605d5 100644 --- a/Documentation/vm/slabinfo.c +++ b/Documentation/vm/slabinfo.c @@ -1,7 +1,7 @@ /* * Slabinfo: Tool to get reports about slabs * - * (C) 2007 sgi, Christoph Lameter <clameter@sgi.com> + * (C) 2007 sgi, Christoph Lameter * * Compile by: * @@ -99,7 +99,7 @@ void fatal(const char *x, ...) void usage(void) { - printf("slabinfo 5/7/2007. (c) 2007 sgi. clameter@sgi.com\n\n" + printf("slabinfo 5/7/2007. (c) 2007 sgi.\n\n" "slabinfo [-ahnpvtsz] [-d debugopts] [slab-regexp]\n" "-a|--aliases Show aliases\n" "-A|--activity Most active slabs first\n" diff --git a/Documentation/vm/slub.txt b/Documentation/vm/slub.txt index 7c13f22a0c9..bb1f5c6e28b 100644 --- a/Documentation/vm/slub.txt +++ b/Documentation/vm/slub.txt @@ -266,4 +266,4 @@ of other objects. slub_debug=FZ,dentry -Christoph Lameter, <clameter@sgi.com>, May 30, 2007 +Christoph Lameter, May 30, 2007 diff --git a/MAINTAINERS b/MAINTAINERS index 8f0ec46a709..6476125363e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -763,9 +763,10 @@ S: Maintained AUXILIARY DISPLAY DRIVERS P: Miguel Ojeda Sandonis -M: maxextreme@gmail.com +M: miguel.ojeda.sandonis@gmail.com L: linux-kernel@vger.kernel.org -W: http://auxdisplay.googlepages.com/ +W: http://miguelojeda.es/auxdisplay.htm +W: http://jair.lab.fi.uva.es/~migojed/auxdisplay.htm S: Maintained AVR32 ARCHITECTURE @@ -1055,16 +1056,18 @@ S: Supported CFAG12864B LCD DRIVER P: Miguel Ojeda Sandonis -M: maxextreme@gmail.com +M: miguel.ojeda.sandonis@gmail.com L: linux-kernel@vger.kernel.org -W: http://auxdisplay.googlepages.com/ +W: http://miguelojeda.es/auxdisplay.htm +W: http://jair.lab.fi.uva.es/~migojed/auxdisplay.htm S: Maintained CFAG12864BFB LCD FRAMEBUFFER DRIVER P: Miguel Ojeda Sandonis -M: maxextreme@gmail.com +M: miguel.ojeda.sandonis@gmail.com L: linux-kernel@vger.kernel.org -W: http://auxdisplay.googlepages.com/ +W: http://miguelojeda.es/auxdisplay.htm +W: http://jair.lab.fi.uva.es/~migojed/auxdisplay.htm S: Maintained CFG80211 and NL80211 @@ -1420,6 +1423,14 @@ M: kristen.c.accardi@intel.com L: linux-acpi@vger.kernel.org S: Supported +DOCUMENTATION (/Documentation directory) +P: Michael Kerrisk +M: mtk.manpages@gmail.com +P: Randy Dunlap +M: rdunlap@xenotime.net +L: linux-doc@vger.kernel.org +S: Maintained + DOUBLETALK DRIVER P: James R. Van Zandt M: jrv@vanzandt.mv.com @@ -1626,13 +1637,13 @@ S: Maintained EXT3 FILE SYSTEM P: Stephen Tweedie, Andrew Morton -M: sct@redhat.com, akpm@linux-foundation.org, adilger@clusterfs.com +M: sct@redhat.com, akpm@linux-foundation.org, adilger@sun.com L: linux-ext4@vger.kernel.org S: Maintained EXT4 FILE SYSTEM P: Stephen Tweedie, Andrew Morton -M: sct@redhat.com, akpm@linux-foundation.org, adilger@clusterfs.com +M: sct@redhat.com, akpm@linux-foundation.org, adilger@sun.com L: linux-ext4@vger.kernel.org S: Maintained @@ -2428,9 +2439,10 @@ S: Maintained KS0108 LCD CONTROLLER DRIVER P: Miguel Ojeda Sandonis -M: maxextreme@gmail.com +M: miguel.ojeda.sandonis@gmail.com L: linux-kernel@vger.kernel.org -W: http://auxdisplay.googlepages.com/ +W: http://miguelojeda.es/auxdisplay.htm +W: http://jair.lab.fi.uva.es/~migojed/auxdisplay.htm S: Maintained LAPB module @@ -2474,9 +2486,11 @@ M: James.Bottomley@HansenPartnership.com W: http://www.hansenpartnership.com/voyager S: Maintained -LINUX FOR POWERPC +LINUX FOR POWERPC (32-BIT AND 64-BIT) P: Paul Mackerras M: paulus@samba.org +P: Benjamin Herrenschmidt +M: benh@kernel.crashing.org W: http://www.penguinppc.org/ L: linuxppc-dev@ozlabs.org T: git kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc.git @@ -2516,13 +2530,6 @@ W: http://wiki.secretlab.ca/index.php/Linux_on_Xilinx_Virtex L: linuxppc-dev@ozlabs.org S: Maintained -LINUX FOR POWERPC BOOT CODE -P: Tom Rini -M: trini@kernel.crashing.org -W: http://www.penguinppc.org/ -L: linuxppc-dev@ozlabs.org -S: Maintained - LINUX FOR POWERPC EMBEDDED PPC8XX P: Vitaly Bordug M: vitb@kernel.crashing.org @@ -2551,17 +2558,6 @@ P: Arnaldo Carvalho de Melo M: acme@ghostprotocols.net S: Maintained -LINUX FOR 64BIT POWERPC -P: Paul Mackerras -M: paulus@samba.org -M: paulus@au.ibm.com -P: Anton Blanchard -M: anton@samba.org -M: anton@au.ibm.com -W: http://www.penguinppc.org/ppc64/ -L: linuxppc-dev@ozlabs.org -S: Supported - LINUX SECURITY MODULE (LSM) FRAMEWORK P: Chris Wright M: chrisw@sous-sol.org @@ -2680,8 +2676,8 @@ S: Supported MAN-PAGES: MANUAL PAGES FOR LINUX -- Sections 2, 3, 4, 5, and 7 P: Michael Kerrisk M: mtk.manpages@gmail.com -W: ftp://ftp.kernel.org/pub/linux/docs/manpages -S: Maintained +W: http://www.kernel.org/doc/man-pages +S: Supported MARVELL LIBERTAS WIRELESS DRIVER P: Dan Williams @@ -2814,6 +2810,12 @@ W: https://tango.0pointer.de/mailman/listinfo/s270-linux W: http://0pointer.de/lennart/tchibo.html S: Maintained +MULTIFUNCTION DEVICES (MFD) +P: Samuel Ortiz +M: sameo@openedhand.com +L: linux-kernel@vger.kernel.org +S: Supported + MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM P: Pierre Ossman M: drzeus-mmc@drzeus.cx @@ -3195,8 +3197,8 @@ L: netdev@vger.kernel.org S: Maintained PER-TASK DELAY ACCOUNTING -P: Shailabh Nagar -M: nagar@watson.ibm.com +P: Balbir Singh +M: balbir@linux.vnet.ibm.com L: linux-kernel@vger.kernel.org S: Maintained @@ -3688,7 +3690,7 @@ S: Maintained SLAB ALLOCATOR P: Christoph Lameter -M: clameter@sgi.com +M: cl@linux-foundation.org P: Pekka Enberg M: penberg@cs.helsinki.fi P: Matt Mackall @@ -3898,8 +3900,8 @@ M: hch@infradead.org S: Maintained TASKSTATS STATISTICS INTERFACE -P: Shailabh Nagar -M: nagar@watson.ibm.com +P: Balbir Singh +M: balbir@linux.vnet.ibm.com L: linux-kernel@vger.kernel.org S: Maintained @@ -3995,7 +3997,8 @@ W: http://www.buzzard.org.uk/toshiba/ S: Maintained TPM DEVICE DRIVER -P: Kylene Hall +P: Debora Velarde +P: Rajiv Andrade M: tpmdd-devel@lists.sourceforge.net W: http://tpmdd.sourceforge.net P: Marcel Selhorst @@ -4314,6 +4317,14 @@ L: netdev@vger.kernel.org W: http://www.linux-usb.org/usbnet S: Maintained +USB VIDEO CLASS +P: Laurent Pinchart +M: laurent.pinchart@skynet.be +L: linx-uvc-devel@berlios.de +L: video4linux-list@redhat.com +W: http://linux-uvc.berlios.de +S: Maintained + USB W996[87]CF DRIVER P: Luca Risolia M: luca.risolia@studio.unibo.it @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 26 -EXTRAVERSION = -rc8 +EXTRAVERSION = -rc9 NAME = Rotary Wombat # *DOCUMENTATION* diff --git a/arch/alpha/kernel/vmlinux.lds.S b/arch/alpha/kernel/vmlinux.lds.S index f13249be17c..ef37fc1acae 100644 --- a/arch/alpha/kernel/vmlinux.lds.S +++ b/arch/alpha/kernel/vmlinux.lds.S @@ -25,6 +25,13 @@ SECTIONS } :kernel _etext = .; /* End of text section */ + NOTES :kernel :note + .dummy : { + *(.dummy) + } :kernel + + RODATA + /* Exception table */ . = ALIGN(16); __ex_table : { @@ -33,13 +40,6 @@ SECTIONS __stop___ex_table = .; } - NOTES :kernel :note - .dummy : { - *(.dummy) - } :kernel - - RODATA - /* Will be freed after init */ . = ALIGN(PAGE_SIZE); /* Init code and data */ diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c index 52fc6a88328..2744673314b 100644 --- a/arch/arm/common/dmabounce.c +++ b/arch/arm/common/dmabounce.c @@ -650,7 +650,8 @@ EXPORT_SYMBOL(dma_map_sg); EXPORT_SYMBOL(dma_unmap_sg); EXPORT_SYMBOL(dma_sync_single_for_cpu); EXPORT_SYMBOL(dma_sync_single_for_device); -EXPORT_SYMBOL(dma_sync_sg); +EXPORT_SYMBOL(dma_sync_sg_for_cpu); +EXPORT_SYMBOL(dma_sync_sg_for_device); EXPORT_SYMBOL(dmabounce_register_dev); EXPORT_SYMBOL(dmabounce_unregister_dev); diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index 02cede295e8..dbf68dc50ae 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -42,7 +42,7 @@ #define GPMC_STATUS 0x54 #define GPMC_PREFETCH_CONFIG1 0x1e0 #define GPMC_PREFETCH_CONFIG2 0x1e4 -#define GPMC_PREFETCH_CONTROL 0x1e8 +#define GPMC_PREFETCH_CONTROL 0x1ec #define GPMC_PREFETCH_STATUS 0x1f0 #define GPMC_ECC_CONFIG 0x1f4 #define GPMC_ECC_CONTROL 0x1f8 diff --git a/arch/arm/mach-realview/platsmp.c b/arch/arm/mach-realview/platsmp.c index 3e57428affe..8e813ed5751 100644 --- a/arch/arm/mach-realview/platsmp.c +++ b/arch/arm/mach-realview/platsmp.c @@ -74,6 +74,8 @@ static DEFINE_SPINLOCK(boot_lock); void __cpuinit platform_secondary_init(unsigned int cpu) { + trace_hardirqs_off(); + /* * the primary core may have used a "cross call" soft interrupt * to get this processor out of WFI in the BootMonitor - make diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index c00eda588cd..39c637b0ffe 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -501,8 +501,6 @@ static inline void omap_enable_channel_irq(int lch) /* Enable some nice interrupts. */ OMAP_DMA_CICR_REG(lch) = dma_chan[lch].enabled_irqs; - - dma_chan[lch].flags |= OMAP_DMA_ACTIVE; } static void omap_disable_channel_irq(int lch) diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c index 917325bfbd8..6be0c50122e 100644 --- a/arch/blackfin/kernel/cplb-nompu/cplbinit.c +++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c @@ -254,7 +254,8 @@ close_cplbtab(struct cplb_tab *table) } /* helper function */ -static void __fill_code_cplbtab(struct cplb_tab *t, int i, u32 a_start, u32 a_end) +static void __init +__fill_code_cplbtab(struct cplb_tab *t, int i, u32 a_start, u32 a_end) { if (cplb_data[i].psize) { fill_cplbtab(t, @@ -291,7 +292,8 @@ static void __fill_code_cplbtab(struct cplb_tab *t, int i, u32 a_start, u32 a_en } } -static void __fill_data_cplbtab(struct cplb_tab *t, int i, u32 a_start, u32 a_end) +static void __init +__fill_data_cplbtab(struct cplb_tab *t, int i, u32 a_start, u32 a_end) { if (cplb_data[i].psize) { fill_cplbtab(t, diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c index 73647c15877..07402f57c9d 100644 --- a/arch/blackfin/kernel/irqchip.c +++ b/arch/blackfin/kernel/irqchip.c @@ -60,9 +60,14 @@ static struct irq_chip bad_chip = { }; static struct irq_desc bad_irq_desc = { + .status = IRQ_DISABLED, .chip = &bad_chip, .handle_irq = handle_bad_irq, .depth = 1, + .lock = __SPIN_LOCK_UNLOCKED(irq_desc->lock), +#ifdef CONFIG_SMP + .affinity = CPU_MASK_ALL +#endif }; int show_interrupts(struct seq_file *p, void *v) diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index 4ae15c8c248..632cda8f2e7 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -547,7 +547,8 @@ setup_arch (char **cmdline_p) # ifdef CONFIG_ACPI_NUMA acpi_numa_init(); per_cpu_scan_finalize((cpus_weight(early_cpu_possible_map) == 0 ? - 32 : cpus_weight(early_cpu_possible_map)), additional_cpus); + 32 : cpus_weight(early_cpu_possible_map)), + additional_cpus > 0 ? additional_cpus : 0); # endif #else # ifdef CONFIG_SMP diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c index 8c73643f2d6..aad1b7b1fff 100644 --- a/arch/ia64/kernel/time.c +++ b/arch/ia64/kernel/time.c @@ -117,6 +117,7 @@ void account_system_vtime(struct task_struct *tsk) local_irq_restore(flags); } +EXPORT_SYMBOL_GPL(account_system_vtime); /* * Called from the timer interrupt handler to charge accumulated user time diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index e5a7c5d9636..24c5dee9176 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1006,7 +1006,7 @@ config BOOT_ELF32 config MIPS_L1_CACHE_SHIFT int default "4" if MACH_DECSTATION - default "7" if SGI_IP27 || SGI_IP28 || SNI_RM + default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM default "4" if PMC_MSP4200_EVAL default "5" diff --git a/arch/mips/kernel/cevt-txx9.c b/arch/mips/kernel/cevt-txx9.c index 795cb8fb0d7..b5fc4eb412d 100644 --- a/arch/mips/kernel/cevt-txx9.c +++ b/arch/mips/kernel/cevt-txx9.c @@ -161,6 +161,9 @@ void __init txx9_tmr_init(unsigned long baseaddr) struct txx9_tmr_reg __iomem *tmrptr; tmrptr = ioremap(baseaddr, sizeof(struct txx9_tmr_reg)); + /* Start once to make CounterResetEnable effective */ + __raw_writel(TXx9_TMTCR_CRE | TXx9_TMTCR_TCE, &tmrptr->tcr); + /* Stop and reset the counter */ __raw_writel(TXx9_TMTCR_CRE, &tmrptr->tcr); __raw_writel(0, &tmrptr->tisr); __raw_writel(0xffffffff, &tmrptr->cpra); diff --git a/arch/mips/mm/c-r3k.c b/arch/mips/mm/c-r3k.c index 76935e32021..27a5b466c85 100644 --- a/arch/mips/mm/c-r3k.c +++ b/arch/mips/mm/c-r3k.c @@ -26,7 +26,7 @@ static unsigned long icache_size, dcache_size; /* Size in bytes */ static unsigned long icache_lsize, dcache_lsize; /* Size in bytes */ -unsigned long __init r3k_cache_size(unsigned long ca_flags) +unsigned long __cpuinit r3k_cache_size(unsigned long ca_flags) { unsigned long flags, status, dummy, size; volatile unsigned long *p; @@ -61,7 +61,7 @@ unsigned long __init r3k_cache_size(unsigned long ca_flags) return size * sizeof(*p); } -unsigned long __init r3k_cache_lsize(unsigned long ca_flags) +unsigned long __cpuinit r3k_cache_lsize(unsigned long ca_flags) { unsigned long flags, status, lsize, i; volatile unsigned long *p; @@ -90,7 +90,7 @@ unsigned long __init r3k_cache_lsize(unsigned long ca_flags) return lsize * sizeof(*p); } -static void __init r3k_probe_cache(void) +static void __cpuinit r3k_probe_cache(void) { dcache_size = r3k_cache_size(ST0_ISC); if (dcache_size) diff --git a/arch/mips/mm/page.c b/arch/mips/mm/page.c index 1edf0cbbeed..1417c649485 100644 --- a/arch/mips/mm/page.c +++ b/arch/mips/mm/page.c @@ -235,13 +235,12 @@ static void __cpuinit set_prefetch_parameters(void) } /* * Too much unrolling will overflow the available space in - * clear_space_array / copy_page_array. 8 words sounds generous, - * but a R4000 with 128 byte L2 line length can exceed even that. + * clear_space_array / copy_page_array. */ - half_clear_loop_size = min(8 * clear_word_size, + half_clear_loop_size = min(16 * clear_word_size, max(cache_line_size >> 1, 4 * clear_word_size)); - half_copy_loop_size = min(8 * copy_word_size, + half_copy_loop_size = min(16 * copy_word_size, max(cache_line_size >> 1, 4 * copy_word_size)); } @@ -263,21 +262,23 @@ static inline void __cpuinit build_clear_pref(u32 **buf, int off) if (pref_bias_clear_store) { uasm_i_pref(buf, pref_dst_mode, pref_bias_clear_store + off, A0); - } else if (cpu_has_cache_cdex_s) { - uasm_i_cache(buf, Create_Dirty_Excl_SD, off, A0); - } else if (cpu_has_cache_cdex_p) { - if (R4600_V1_HIT_CACHEOP_WAR && cpu_is_r4600_v1_x()) { - uasm_i_nop(buf); - uasm_i_nop(buf); - uasm_i_nop(buf); - uasm_i_nop(buf); - } + } else if (cache_line_size == (half_clear_loop_size << 1)) { + if (cpu_has_cache_cdex_s) { + uasm_i_cache(buf, Create_Dirty_Excl_SD, off, A0); + } else if (cpu_has_cache_cdex_p) { + if (R4600_V1_HIT_CACHEOP_WAR && cpu_is_r4600_v1_x()) { + uasm_i_nop(buf); + uasm_i_nop(buf); + uasm_i_nop(buf); + uasm_i_nop(buf); + } - if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x()) - uasm_i_lw(buf, ZERO, ZERO, AT); + if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x()) + uasm_i_lw(buf, ZERO, ZERO, AT); - uasm_i_cache(buf, Create_Dirty_Excl_D, off, A0); - } + uasm_i_cache(buf, Create_Dirty_Excl_D, off, A0); + } + } } void __cpuinit build_clear_page(void) @@ -403,20 +404,22 @@ static inline void build_copy_store_pref(u32 **buf, int off) if (pref_bias_copy_store) { uasm_i_pref(buf, pref_dst_mode, pref_bias_copy_store + off, A0); - } else if (cpu_has_cache_cdex_s) { - uasm_i_cache(buf, Create_Dirty_Excl_SD, off, A0); - } else if (cpu_has_cache_cdex_p) { - if (R4600_V1_HIT_CACHEOP_WAR && cpu_is_r4600_v1_x()) { - uasm_i_nop(buf); - uasm_i_nop(buf); - uasm_i_nop(buf); - uasm_i_nop(buf); - } + } else if (cache_line_size == (half_copy_loop_size << 1)) { + if (cpu_has_cache_cdex_s) { + uasm_i_cache(buf, Create_Dirty_Excl_SD, off, A0); + } else if (cpu_has_cache_cdex_p) { + if (R4600_V1_HIT_CACHEOP_WAR && cpu_is_r4600_v1_x()) { + uasm_i_nop(buf); + uasm_i_nop(buf); + uasm_i_nop(buf); + uasm_i_nop(buf); + } - if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x()) - uasm_i_lw(buf, ZERO, ZERO, AT); + if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x()) + uasm_i_lw(buf, ZERO, ZERO, AT); - uasm_i_cache(buf, Create_Dirty_Excl_D, off, A0); + uasm_i_cache(buf, Create_Dirty_Excl_D, off, A0); + } } } diff --git a/arch/mips/mm/sc-rm7k.c b/arch/mips/mm/sc-rm7k.c index fc227f3b119..e3abfb2d7e8 100644 --- a/arch/mips/mm/sc-rm7k.c +++ b/arch/mips/mm/sc-rm7k.c @@ -86,7 +86,7 @@ static void rm7k_sc_inv(unsigned long addr, unsigned long size) /* * This function is executed in uncached address space. */ -static __init void __rm7k_sc_enable(void) +static __cpuinit void __rm7k_sc_enable(void) { int i; @@ -107,7 +107,7 @@ static __init void __rm7k_sc_enable(void) } } -static __init void rm7k_sc_enable(void) +static __cpuinit void rm7k_sc_enable(void) { if (read_c0_config() & RM7K_CONF_SE) return; diff --git a/arch/mips/sgi-ip32/ip32-irq.c b/arch/mips/sgi-ip32/ip32-irq.c index b0ea0e43ba4..0d6b6663d5f 100644 --- a/arch/mips/sgi-ip32/ip32-irq.c +++ b/arch/mips/sgi-ip32/ip32-irq.c @@ -425,6 +425,11 @@ static void ip32_irq0(void) BUILD_BUG_ON(MACEISA_SERIAL2_RDMAOR_IRQ - MACEISA_AUDIO_SW_IRQ != 31); crime_int = crime->istat & crime_mask; + + /* crime sometime delivers spurious interrupts, ignore them */ + if (unlikely(crime_int == 0)) + return; + irq = MACE_VID_IN1_IRQ + __ffs(crime_int); if (crime_int & CRIME_MACEISA_INT_MASK) { diff --git a/arch/mn10300/kernel/mn10300_ksyms.c b/arch/mn10300/kernel/mn10300_ksyms.c index 6d19628634e..f9eb9753a40 100644 --- a/arch/mn10300/kernel/mn10300_ksyms.c +++ b/arch/mn10300/kernel/mn10300_ksyms.c @@ -10,8 +10,11 @@ */ #include <linux/module.h> #include <asm/uaccess.h> +#include <asm/pgtable.h> +EXPORT_SYMBOL(empty_zero_page); + EXPORT_SYMBOL(change_bit); EXPORT_SYMBOL(test_and_change_bit); @@ -31,7 +34,9 @@ extern u64 __ashrdi3(u64, unsigned); extern u64 __ashldi3(u64, unsigned); extern u64 __lshrdi3(u64, unsigned); extern s64 __negdi2(s64); +extern int __ucmpdi2(u64, u64); EXPORT_SYMBOL(__ashrdi3); EXPORT_SYMBOL(__ashldi3); EXPORT_SYMBOL(__lshrdi3); EXPORT_SYMBOL(__negdi2); +EXPORT_SYMBOL(__ucmpdi2); diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c index 9c623c88387..b28c9a60445 100644 --- a/arch/mn10300/kernel/process.c +++ b/arch/mn10300/kernel/process.c @@ -153,6 +153,7 @@ int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags) return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, ®s, 0, NULL, NULL); } +EXPORT_SYMBOL(kernel_thread); /* * free current thread data structures etc.. diff --git a/arch/mn10300/lib/Makefile b/arch/mn10300/lib/Makefile index fdfa9ec5b5b..0cd2346f4c1 100644 --- a/arch/mn10300/lib/Makefile +++ b/arch/mn10300/lib/Makefile @@ -4,4 +4,4 @@ lib-y = delay.o usercopy.o checksum.o bitops.o memcpy.o memmove.o memset.o lib-y += do_csum.o -lib-y += __ashldi3.o __ashrdi3.o __lshrdi3.o negdi2.o +lib-y += __ashldi3.o __ashrdi3.o __lshrdi3.o negdi2.o __ucmpdi2.o diff --git a/arch/mn10300/lib/__ucmpdi2.S b/arch/mn10300/lib/__ucmpdi2.S new file mode 100644 index 00000000000..60dcbdfe386 --- /dev/null +++ b/arch/mn10300/lib/__ucmpdi2.S @@ -0,0 +1,43 @@ +/* __ucmpdi2.S: 64-bit unsigned compare + * + * Copyright (C) 2008 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + + + .text + .p2align 4 + +############################################################################### +# +# int __ucmpdi2(unsigned long long a [D0:D1], +# unsigned long long b [(SP,12),(SP,16)]) +# +# - returns 0, 1, or 2 as a <, =, > b respectively. +# +############################################################################### + .globl __ucmpdi2 + .type __ucmpdi2,@function +__ucmpdi2: + mov (12,sp),a0 # b.lsw + mov (16,sp),a1 # b.msw + + sub a0,d0 + subc a1,d1 # may clear Z, never sets it + bne __ucmpdi2_differ # a.msw != b.msw + mov +1,d0 + rets + +__ucmpdi2_differ: + # C flag is set if LE, clear if GE + subc d0,d0 # -1 if LE, 0 if GE + add +1,d0 # 0 if LE, 1 if GE + add d0,d0 # 0 if LE, 2 if GE + rets + + .size __ucmpdi2, .-__ucmpdi2 diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index 1cee2f9fdf0..095e04db1c0 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -273,7 +273,8 @@ endif initrd- := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-)) initrd-y := $(patsubst zImage%, zImage.initrd%, \ $(patsubst dtbImage%, dtbImage.initrd%, \ - $(patsubst treeImage%, treeImage.initrd%, $(image-y)))) + $(patsubst simpleImage%, simpleImage.initrd%, \ + $(patsubst treeImage%, treeImage.initrd%, $(image-y))))) initrd-y := $(filter-out $(image-y), $(initrd-y)) targets += $(image-y) $(initrd-y) diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c index 61dd17449dd..4d96e1db55e 100644 --- a/arch/powerpc/kernel/legacy_serial.c +++ b/arch/powerpc/kernel/legacy_serial.c @@ -33,13 +33,14 @@ static struct legacy_serial_info { phys_addr_t taddr; } legacy_serial_infos[MAX_LEGACY_SERIAL_PORTS]; -static struct __initdata of_device_id parents[] = { +static struct __initdata of_device_id legacy_serial_parents[] = { {.type = "soc",}, {.type = "tsi-bridge",}, {.type = "opb", }, {.compatible = "ibm,opb",}, {.compatible = "simple-bus",}, {.compatible = "wrs,epld-localbus",}, + {}, }; static unsigned int legacy_serial_count; @@ -136,6 +137,11 @@ static int __init add_legacy_soc_port(struct device_node *np, if (of_get_property(np, "clock-frequency", NULL) == NULL) return -1; + /* if reg-shift or offset, don't try to use it */ + if ((of_get_property(np, "reg-shift", NULL) != NULL) || + (of_get_property(np, "reg-offset", NULL) != NULL)) + return -1; + /* if rtas uses this device, don't try to use it as well */ if (of_get_property(np, "used-by-rtas", NULL) != NULL) return -1; @@ -322,7 +328,7 @@ void __init find_legacy_serial_ports(void) struct device_node *parent = of_get_parent(np); if (!parent) continue; - if (of_match_node(parents, parent) != NULL) { + if (of_match_node(legacy_serial_parents, parent) != NULL) { index = add_legacy_soc_port(np, np); if (index >= 0 && np == stdout) legacy_serial_console = index; diff --git a/arch/powerpc/kernel/of_platform.c b/arch/powerpc/kernel/of_platform.c index e79ad8afda0..3f37a6e6277 100644 --- a/arch/powerpc/kernel/of_platform.c +++ b/arch/powerpc/kernel/of_platform.c @@ -76,6 +76,8 @@ struct of_device* of_platform_device_create(struct device_node *np, return NULL; dev->dma_mask = 0xffffffffUL; + dev->dev.coherent_dma_mask = DMA_32BIT_MASK; + dev->dev.bus = &of_platform_bus_type; /* We do not fill the DMA ops for platform devices by default. diff --git a/arch/powerpc/platforms/52xx/lite5200_pm.c b/arch/powerpc/platforms/52xx/lite5200_pm.c index 41c7fd91e99..fe92e65103e 100644 --- a/arch/powerpc/platforms/52xx/lite5200_pm.c +++ b/arch/powerpc/platforms/52xx/lite5200_pm.c @@ -14,6 +14,7 @@ static struct mpc52xx_sdma __iomem *bes; static struct mpc52xx_xlb __iomem *xlb; static struct mpc52xx_gpio __iomem *gps; static struct mpc52xx_gpio_wkup __iomem *gpw; +static void __iomem *pci; static void __iomem *sram; static const int sram_size = 0x4000; /* 16 kBytes */ static void __iomem *mbar; @@ -50,6 +51,8 @@ static int lite5200_pm_prepare(void) { .type = "builtin", .compatible = "mpc5200", }, /* efika */ {} }; + u64 regaddr64 = 0; + const u32 *regaddr_p; /* deep sleep? let mpc52xx code handle that */ if (lite5200_pm_target_state == PM_SUSPEND_STANDBY) @@ -60,8 +63,12 @@ static int lite5200_pm_prepare(void) /* map registers */ np = of_find_matching_node(NULL, immr_ids); - mbar = of_iomap(np, 0); + regaddr_p = of_get_address(np, 0, NULL, NULL); + if (regaddr_p) + regaddr64 = of_translate_address(np, regaddr_p); of_node_put(np); + + mbar = ioremap((u32) regaddr64, 0xC000); if (!mbar) { printk(KERN_ERR "%s:%i Error mapping registers\n", __func__, __LINE__); return -ENOSYS; @@ -71,6 +78,7 @@ static int lite5200_pm_prepare(void) pic = mbar + 0x500; gps = mbar + 0xb00; gpw = mbar + 0xc00; + pci = mbar + 0xd00; bes = mbar + 0x1200; xlb = mbar + 0x1f00; sram = mbar + 0x8000; @@ -85,6 +93,7 @@ static struct mpc52xx_sdma sbes; static struct mpc52xx_xlb sxlb; static struct mpc52xx_gpio sgps; static struct mpc52xx_gpio_wkup sgpw; +static char spci[0x200]; static void lite5200_save_regs(void) { @@ -94,6 +103,7 @@ static void lite5200_save_regs(void) _memcpy_fromio(&sxlb, xlb, sizeof(*xlb)); _memcpy_fromio(&sgps, gps, sizeof(*gps)); _memcpy_fromio(&sgpw, gpw, sizeof(*gpw)); + _memcpy_fromio(spci, pci, 0x200); _memcpy_fromio(saved_sram, sram, sram_size); } @@ -103,6 +113,8 @@ static void lite5200_restore_regs(void) int i; _memcpy_toio(sram, saved_sram, sram_size); + /* PCI Configuration */ + _memcpy_toio(pci, spci, 0x200); /* * GPIOs. Interrupt Master Enable has higher address then other diff --git a/arch/um/Makefile b/arch/um/Makefile index dbeab15e7bb..ca40397017b 100644 --- a/arch/um/Makefile +++ b/arch/um/Makefile @@ -77,7 +77,6 @@ include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS) KERNEL_DEFINES = $(strip -Derrno=kernel_errno -Dsigprocmask=kernel_sigprocmask \ -Dmktime=kernel_mktime $(ARCH_KERNEL_DEFINES)) KBUILD_CFLAGS += $(KERNEL_DEFINES) -KBUILD_CFLAGS += $(call cc-option,-fno-unit-at-a-time,) PHONY += linux diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386 index 561e373bd85..302cbe50454 100644 --- a/arch/um/Makefile-i386 +++ b/arch/um/Makefile-i386 @@ -32,4 +32,11 @@ cflags-y += $(call cc-option,-mpreferred-stack-boundary=2) # an unresolved reference. cflags-y += -ffreestanding +# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use +# a lot more stack due to the lack of sharing of stacklots. Also, gcc +# 4.3.0 needs -funit-at-a-time for extern inline functions. +KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then \ + echo $(call cc-option,-fno-unit-at-a-time); \ + else echo $(call cc-option,-funit-at-a-time); fi ;) + KBUILD_CFLAGS += $(cflags-y) diff --git a/arch/um/Makefile-x86_64 b/arch/um/Makefile-x86_64 index 8ed362f9358..a9cd7e77a7a 100644 --- a/arch/um/Makefile-x86_64 +++ b/arch/um/Makefile-x86_64 @@ -21,3 +21,6 @@ HEADER_ARCH := x86 LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib64 LINK-y += -m64 + +# Do unit-at-a-time unconditionally on x86_64, following the host +KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index e0edaaa6920..bf07b6f50fa 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -966,8 +966,8 @@ config NUMA_EMU number of nodes. This is only useful for debugging. config NODES_SHIFT - int "Max num nodes shift(1-15)" - range 1 15 if X86_64 + int "Max num nodes shift(1-9)" + range 1 9 if X86_64 default "6" if X86_64 default "4" if X86_NUMAQ default "3" diff --git a/arch/x86/kernel/.gitignore b/arch/x86/kernel/.gitignore index 4ea38a39aed..08f4fd73146 100644 --- a/arch/x86/kernel/.gitignore +++ b/arch/x86/kernel/.gitignore @@ -1,2 +1,3 @@ vsyscall.lds vsyscall_32.lds +vmlinux.lds diff --git a/arch/x86/kernel/acpi/realmode/wakeup.S b/arch/x86/kernel/acpi/realmode/wakeup.S index f9b77fb37e5..3355973b12a 100644 --- a/arch/x86/kernel/acpi/realmode/wakeup.S +++ b/arch/x86/kernel/acpi/realmode/wakeup.S @@ -5,6 +5,7 @@ #include <asm/msr-index.h> #include <asm/page.h> #include <asm/pgtable.h> +#include <asm/processor-flags.h> .code16 .section ".header", "a" @@ -24,6 +25,11 @@ pmode_gdt: .quad 0 realmode_flags: .long 0 real_magic: .long 0 trampoline_segment: .word 0 +_pad1: .byte 0 +wakeup_jmp: .byte 0xea /* ljmpw */ +wakeup_jmp_off: .word 3f +wakeup_jmp_seg: .word 0 +wakeup_gdt: .quad 0, 0, 0 signature: .long 0x51ee1111 .text @@ -34,11 +40,34 @@ _start: cli cld + /* Apparently some dimwit BIOS programmers don't know how to + program a PM to RM transition, and we might end up here with + junk in the data segment descriptor registers. The only way + to repair that is to go into PM and fix it ourselves... */ + movw $16, %cx + lgdtl %cs:wakeup_gdt + movl %cr0, %eax + orb $X86_CR0_PE, %al + movl %eax, %cr0 + jmp 1f +1: ljmpw $8, $2f +2: + movw %cx, %ds + movw %cx, %es + movw %cx, %ss + movw %cx, %fs + movw %cx, %gs + + andb $~X86_CR0_PE, %al + movl %eax, %cr0 + jmp wakeup_jmp +3: /* Set up segments */ movw %cs, %ax movw %ax, %ds movw %ax, %es movw %ax, %ss + lidtl wakeup_idt movl $wakeup_stack_end, %esp @@ -98,7 +127,14 @@ bogus_real_magic: jmp 1b .data - .balign 4 + .balign 8 + + /* This is the standard real-mode IDT */ +wakeup_idt: + .word 0xffff /* limit */ + .long 0 /* address */ + .word 0 + .globl HEAP, heap_end HEAP: .long wakeup_heap diff --git a/arch/x86/kernel/acpi/realmode/wakeup.h b/arch/x86/kernel/acpi/realmode/wakeup.h index ef8166fe802..69d38d0b2b6 100644 --- a/arch/x86/kernel/acpi/realmode/wakeup.h +++ b/arch/x86/kernel/acpi/realmode/wakeup.h @@ -24,6 +24,11 @@ struct wakeup_header { u32 realmode_flags; u32 real_magic; u16 trampoline_segment; /* segment with trampoline code, 64-bit only */ + u8 _pad1; + u8 wakeup_jmp; + u16 wakeup_jmp_off; + u16 wakeup_jmp_seg; + u64 wakeup_gdt[3]; u32 signature; /* To check we have correct structure */ } __attribute__((__packed__)); diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c index afc25ee9964..36af01f029e 100644 --- a/arch/x86/kernel/acpi/sleep.c +++ b/arch/x86/kernel/acpi/sleep.c @@ -50,6 +50,20 @@ int acpi_save_state_mem(void) header->video_mode = saved_video_mode; + header->wakeup_jmp_seg = acpi_wakeup_address >> 4; + /* GDT[0]: GDT self-pointer */ + header->wakeup_gdt[0] = + (u64)(sizeof(header->wakeup_gdt) - 1) + + ((u64)(acpi_wakeup_address + + ((char *)&header->wakeup_gdt - (char *)acpi_realmode)) + << 16); + /* GDT[1]: real-mode-like code segment */ + header->wakeup_gdt[1] = (0x009bULL << 40) + + ((u64)acpi_wakeup_address << 16) + 0xffff; + /* GDT[2]: real-mode-like data segment */ + header->wakeup_gdt[2] = (0x0093ULL << 40) + + ((u64)acpi_wakeup_address << 16) + 0xffff; + #ifndef CONFIG_64BIT store_gdt((struct desc_ptr *)&header->pmode_gdt); @@ -111,7 +125,7 @@ void __init acpi_reserve_bootmem(void) return; } - acpi_wakeup_address = acpi_realmode; + acpi_wakeup_address = virt_to_phys((void *)acpi_realmode); } diff --git a/arch/x86/kernel/efi_32.c b/arch/x86/kernel/efi_32.c index 5d23d85624d..4b63c8e1f13 100644 --- a/arch/x86/kernel/efi_32.c +++ b/arch/x86/kernel/efi_32.c @@ -49,13 +49,13 @@ void efi_call_phys_prelog(void) local_irq_save(efi_rt_eflags); /* - * If I don't have PSE, I should just duplicate two entries in page - * directory. If I have PSE, I just need to duplicate one entry in + * If I don't have PAE, I should just duplicate two entries in page + * directory. If I have PAE, I just need to duplicate one entry in * page directory. */ cr4 = read_cr4(); - if (cr4 & X86_CR4_PSE) { + if (cr4 & X86_CR4_PAE) { efi_bak_pg_dir_pointer[0].pgd = swapper_pg_dir[pgd_index(0)].pgd; swapper_pg_dir[0].pgd = @@ -93,7 +93,7 @@ void efi_call_phys_epilog(void) cr4 = read_cr4(); - if (cr4 & X86_CR4_PSE) { + if (cr4 & X86_CR4_PAE) { swapper_pg_dir[pgd_index(0)].pgd = efi_bak_pg_dir_pointer[0].pgd; } else { diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S index 10a1955bb1d..b817974ef94 100644 --- a/arch/x86/kernel/head_64.S +++ b/arch/x86/kernel/head_64.S @@ -128,7 +128,7 @@ ident_complete: /* Fixup phys_base */ addq %rbp, phys_base(%rip) -#ifdef CONFIG_SMP +#ifdef CONFIG_X86_TRAMPOLINE addq %rbp, trampoline_level4_pgt + 0(%rip) addq %rbp, trampoline_level4_pgt + (511*8)(%rip) #endif diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c index eb9ddd8efb8..95e80e5033c 100644 --- a/arch/x86/kernel/i387.c +++ b/arch/x86/kernel/i387.c @@ -162,7 +162,7 @@ int xfpregs_get(struct task_struct *target, const struct user_regset *regset, int ret; if (!cpu_has_fxsr) - return -ENODEV; + return -EIO; ret = init_fpu(target); if (ret) @@ -179,7 +179,7 @@ int xfpregs_set(struct task_struct *target, const struct user_regset *regset, int ret; if (!cpu_has_fxsr) - return -ENODEV; + return -EIO; ret = init_fpu(target); if (ret) diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 56078d61c79..3e1cecedde4 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -996,7 +996,6 @@ do_rest: #endif cpu_clear(cpu, cpu_callout_map); /* was set by do_boot_cpu() */ cpu_clear(cpu, cpu_initialized); /* was set by cpu_init() */ - cpu_clear(cpu, cpu_possible_map); cpu_clear(cpu, cpu_present_map); per_cpu(x86_cpu_to_apicid, cpu) = BAD_APICID; } diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 156e6d7b0e3..819dad973b1 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -135,7 +135,7 @@ static __init void *spp_getpage(void) return ptr; } -static void +static __init void set_pte_phys(unsigned long vaddr, unsigned long phys, pgprot_t prot) { pgd_t *pgd; @@ -214,7 +214,7 @@ void __init cleanup_highmap(void) } /* NOTE: this is meant to be run only at boot */ -void __set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t prot) +void __init __set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t prot) { unsigned long address = __fix_to_virt(idx); @@ -526,7 +526,8 @@ static void __init early_memtest(unsigned long start, unsigned long end) t_size = end - t_start; printk(KERN_CONT "\n %016llx - %016llx pattern %d", - t_start, t_start + t_size, pattern); + (unsigned long long)t_start, + (unsigned long long)t_start + t_size, pattern); memtest(t_start, t_size, pattern); diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 2b2bb3f9b68..d1b867101e5 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -300,6 +300,29 @@ void __iomem *ioremap_cache(resource_size_t phys_addr, unsigned long size) } EXPORT_SYMBOL(ioremap_cache); +static void __iomem *ioremap_default(resource_size_t phys_addr, + unsigned long size) +{ + unsigned long flags; + void *ret; + int err; + + /* + * - WB for WB-able memory and no other conflicting mappings + * - UC_MINUS for non-WB-able memory with no other conflicting mappings + * - Inherit from confliting mappings otherwise + */ + err = reserve_memtype(phys_addr, phys_addr + size, -1, &flags); + if (err < 0) + return NULL; + + ret = (void *) __ioremap_caller(phys_addr, size, flags, + __builtin_return_address(0)); + + free_memtype(phys_addr, phys_addr + size); + return (void __iomem *)ret; +} + /** * iounmap - Free a IO remapping * @addr: virtual address from ioremap_* @@ -365,7 +388,7 @@ void *xlate_dev_mem_ptr(unsigned long phys) if (page_is_ram(start >> PAGE_SHIFT)) return __va(phys); - addr = (void *)ioremap(start, PAGE_SIZE); + addr = (void *)ioremap_default(start, PAGE_SIZE); if (addr) addr = (void *)((unsigned long)addr | (phys & ~PAGE_MASK)); diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 940185ecaed..6e64aaf00d1 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -328,18 +328,18 @@ static struct dmi_system_id __devinitdata pciprobe_dmi_table[] = { #endif { .callback = set_bf_sort, - .ident = "HP ProLiant DL360", + .ident = "HP ProLiant DL385 G2", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL360"), + DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL385 G2"), }, }, { .callback = set_bf_sort, - .ident = "HP ProLiant DL380", + .ident = "HP ProLiant DL585 G2", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL380"), + DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL585 G2"), }, }, {} diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index df40bf74ea7..4e527e7893a 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -185,7 +185,7 @@ static pteval_t pte_mfn_to_pfn(pteval_t val) if (val & _PAGE_PRESENT) { unsigned long mfn = (val & PTE_MASK) >> PAGE_SHIFT; pteval_t flags = val & ~PTE_MASK; - val = (mfn_to_pfn(mfn) << PAGE_SHIFT) | flags; + val = ((pteval_t)mfn_to_pfn(mfn) << PAGE_SHIFT) | flags; } return val; @@ -196,7 +196,7 @@ static pteval_t pte_pfn_to_mfn(pteval_t val) if (val & _PAGE_PRESENT) { unsigned long pfn = (val & PTE_MASK) >> PAGE_SHIFT; pteval_t flags = val & ~PTE_MASK; - val = (pfn_to_mfn(pfn) << PAGE_SHIFT) | flags; + val = ((pteval_t)pfn_to_mfn(pfn) << PAGE_SHIFT) | flags; } return val; diff --git a/block/as-iosched.c b/block/as-iosched.c index 8c3946787db..743f33a01a0 100644 --- a/block/as-iosched.c +++ b/block/as-iosched.c @@ -831,6 +831,8 @@ static void as_completed_request(struct request_queue *q, struct request *rq) } if (ad->changed_batch && ad->nr_dispatched == 1) { + ad->current_batch_expires = jiffies + + ad->batch_expire[ad->batch_data_dir]; kblockd_schedule_work(&ad->antic_work); ad->changed_batch = 0; diff --git a/crypto/chainiv.c b/crypto/chainiv.c index 6da3f577e4d..9affadee328 100644 --- a/crypto/chainiv.c +++ b/crypto/chainiv.c @@ -117,6 +117,7 @@ static int chainiv_init(struct crypto_tfm *tfm) static int async_chainiv_schedule_work(struct async_chainiv_ctx *ctx) { int queued; + int err = ctx->err; if (!ctx->queue.qlen) { smp_mb__before_clear_bit(); @@ -131,7 +132,7 @@ static int async_chainiv_schedule_work(struct async_chainiv_ctx *ctx) BUG_ON(!queued); out: - return ctx->err; + return err; } static int async_chainiv_postpone_request(struct skcipher_givcrypt_request *req) @@ -227,6 +228,7 @@ static void async_chainiv_do_postponed(struct work_struct *work) postponed); struct skcipher_givcrypt_request *req; struct ablkcipher_request *subreq; + int err; /* Only handle one request at a time to avoid hogging keventd. */ spin_lock_bh(&ctx->lock); @@ -241,7 +243,11 @@ static void async_chainiv_do_postponed(struct work_struct *work) subreq = skcipher_givcrypt_reqctx(req); subreq->base.flags |= CRYPTO_TFM_REQ_MAY_SLEEP; - async_chainiv_givencrypt_tail(req); + err = async_chainiv_givencrypt_tail(req); + + local_bh_disable(); + skcipher_givcrypt_complete(req, err); + local_bh_enable(); } static int async_chainiv_init(struct crypto_tfm *tfm) diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c index 6beabc5abd0..e47f6e02133 100644 --- a/crypto/tcrypt.c +++ b/crypto/tcrypt.c @@ -586,12 +586,6 @@ static void test_cipher(char *algo, int enc, j = 0; for (i = 0; i < tcount; i++) { - data = kzalloc(template[i].ilen, GFP_KERNEL); - if (!data) - continue; - - memcpy(data, template[i].input, template[i].ilen); - if (template[i].iv) memcpy(iv, template[i].iv, MAX_IVLEN); else @@ -613,10 +607,8 @@ static void test_cipher(char *algo, int enc, printk("setkey() failed flags=%x\n", crypto_ablkcipher_get_flags(tfm)); - if (!template[i].fail) { - kfree(data); + if (!template[i].fail) goto out; - } } temp = 0; diff --git a/drivers/acpi/bay.c b/drivers/acpi/bay.c index 26038c2a2a7..61b6c5beb2d 100644 --- a/drivers/acpi/bay.c +++ b/drivers/acpi/bay.c @@ -377,6 +377,9 @@ static int __init bay_init(void) INIT_LIST_HEAD(&drive_bays); + if (acpi_disabled) + return -ENODEV; + /* look for dockable drive bays */ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, find_bay, &bays, NULL); diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index 96c542f7fde..bb7c51f712b 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -917,6 +917,9 @@ static int __init dock_init(void) dock_station = NULL; + if (acpi_disabled) + return 0; + /* look for a dock station */ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, find_dock, &num, NULL); diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index 2808dc60fd6..9b227d4dc9c 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -333,6 +333,9 @@ static int __init acpi_rtc_init(void) { struct device *dev = get_rtc_dev(); + if (acpi_disabled) + return 0; + if (dev) { rtc_wake_setup(); rtc_info.wake_on = rtc_wake_on; diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index c3b0cd88d09..495c63a3e0a 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -36,9 +36,8 @@ static int acpi_sleep_prepare(u32 acpi_state) if (!acpi_wakeup_address) { return -EFAULT; } - acpi_set_firmware_waking_vector((acpi_physical_address) - virt_to_phys((void *) - acpi_wakeup_address)); + acpi_set_firmware_waking_vector( + (acpi_physical_address)acpi_wakeup_address); } ACPI_FLUSH_CPU_CACHE(); diff --git a/drivers/acpi/sleep/proc.c b/drivers/acpi/sleep/proc.c index 224c57c0338..4ebbba2b6b1 100644 --- a/drivers/acpi/sleep/proc.c +++ b/drivers/acpi/sleep/proc.c @@ -315,8 +315,11 @@ acpi_system_write_alarm(struct file *file, cmos_bcd_write(day, acpi_gbl_FADT.day_alarm, rtc_control); if (acpi_gbl_FADT.month_alarm) cmos_bcd_write(mo, acpi_gbl_FADT.month_alarm, rtc_control); - if (acpi_gbl_FADT.century) + if (acpi_gbl_FADT.century) { + if (adjust) + yr += cmos_bcd_read(acpi_gbl_FADT.century, rtc_control) * 100; cmos_bcd_write(yr / 100, acpi_gbl_FADT.century, rtc_control); + } /* enable the rtc alarm interrupt */ rtc_control |= RTC_AIE; CMOS_WRITE(rtc_control, RTC_CONTROL); diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 6a4a2a25d97..5e6468a7ca4 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1777,7 +1777,7 @@ static irqreturn_t ahci_interrupt(int irq, void *dev_instance) struct ahci_host_priv *hpriv; unsigned int i, handled = 0; void __iomem *mmio; - u32 irq_stat, irq_ack = 0; + u32 irq_stat, irq_masked; VPRINTK("ENTER\n"); @@ -1786,16 +1786,17 @@ static irqreturn_t ahci_interrupt(int irq, void *dev_instance) /* sigh. 0xffffffff is a valid return from h/w */ irq_stat = readl(mmio + HOST_IRQ_STAT); - irq_stat &= hpriv->port_map; if (!irq_stat) return IRQ_NONE; + irq_masked = irq_stat & hpriv->port_map; + spin_lock(&host->lock); for (i = 0; i < host->n_ports; i++) { struct ata_port *ap; - if (!(irq_stat & (1 << i))) + if (!(irq_masked & (1 << i))) continue; ap = host->ports[i]; @@ -1809,14 +1810,20 @@ static irqreturn_t ahci_interrupt(int irq, void *dev_instance) "interrupt on disabled port %u\n", i); } - irq_ack |= (1 << i); - } - - if (irq_ack) { - writel(irq_ack, mmio + HOST_IRQ_STAT); handled = 1; } + /* HOST_IRQ_STAT behaves as level triggered latch meaning that + * it should be cleared after all the port events are cleared; + * otherwise, it will raise a spurious interrupt after each + * valid one. Please read section 10.6.2 of ahci 1.1 for more + * information. + * + * Also, use the unmasked value to clear interrupt as spurious + * pending event on a dummy port might cause screaming IRQ. + */ + writel(irq_stat, mmio + HOST_IRQ_STAT); + spin_unlock(&host->lock); VPRINTK("EXIT\n"); diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 215d18672a5..c0908c22548 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -1094,6 +1094,7 @@ static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq) int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc, u8 status, int in_wq) { + struct ata_eh_info *ehi = &ap->link.eh_info; unsigned long flags = 0; int poll_next; @@ -1125,9 +1126,12 @@ fsm_start: if (likely(status & (ATA_ERR | ATA_DF))) /* device stops HSM for abort/error */ qc->err_mask |= AC_ERR_DEV; - else + else { /* HSM violation. Let EH handle this */ + ata_ehi_push_desc(ehi, + "ST_FIRST: !(DRQ|ERR|DF)"); qc->err_mask |= AC_ERR_HSM; + } ap->hsm_task_state = HSM_ST_ERR; goto fsm_start; @@ -1146,9 +1150,9 @@ fsm_start: * the CDB. */ if (!(qc->dev->horkage & ATA_HORKAGE_STUCK_ERR)) { - ata_port_printk(ap, KERN_WARNING, - "DRQ=1 with device error, " - "dev_stat 0x%X\n", status); + ata_ehi_push_desc(ehi, "ST_FIRST: " + "DRQ=1 with device error, " + "dev_stat 0x%X", status); qc->err_mask |= AC_ERR_HSM; ap->hsm_task_state = HSM_ST_ERR; goto fsm_start; @@ -1205,9 +1209,9 @@ fsm_start: * let the EH abort the command or reset the device. */ if (unlikely(status & (ATA_ERR | ATA_DF))) { - ata_port_printk(ap, KERN_WARNING, "DRQ=1 with " - "device error, dev_stat 0x%X\n", - status); + ata_ehi_push_desc(ehi, "ST-ATAPI: " + "DRQ=1 with device error, " + "dev_stat 0x%X", status); qc->err_mask |= AC_ERR_HSM; ap->hsm_task_state = HSM_ST_ERR; goto fsm_start; @@ -1226,13 +1230,17 @@ fsm_start: if (likely(status & (ATA_ERR | ATA_DF))) /* device stops HSM for abort/error */ qc->err_mask |= AC_ERR_DEV; - else + else { /* HSM violation. Let EH handle this. * Phantom devices also trigger this * condition. Mark hint. */ + ata_ehi_push_desc(ehi, "ST-ATA: " + "DRQ=1 with device error, " + "dev_stat 0x%X", status); qc->err_mask |= AC_ERR_HSM | AC_ERR_NODEV_HINT; + } ap->hsm_task_state = HSM_ST_ERR; goto fsm_start; @@ -1257,8 +1265,12 @@ fsm_start: status = ata_wait_idle(ap); } - if (status & (ATA_BUSY | ATA_DRQ)) + if (status & (ATA_BUSY | ATA_DRQ)) { + ata_ehi_push_desc(ehi, "ST-ATA: " + "BUSY|DRQ persists on ERR|DF, " + "dev_stat 0x%X", status); qc->err_mask |= AC_ERR_HSM; + } /* ata_pio_sectors() might change the * state to HSM_ST_LAST. so, the state diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 28092bc5014..ad169ffbc4c 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -1607,7 +1607,7 @@ static unsigned int mv_qc_issue(struct ata_queued_cmd *qc) * Much of the time, this could just work regardless. * So for now, just log the incident, and allow the attempt. */ - if (limit_warnings && (qc->nbytes / qc->sect_size) > 1) { + if (limit_warnings > 0 && (qc->nbytes / qc->sect_size) > 1) { --limit_warnings; ata_link_printk(qc->dev->link, KERN_WARNING, DRV_NAME ": attempting PIO w/multiple DRQ: " diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c index 8ee6b5b4ede..84ffcc26a74 100644 --- a/drivers/ata/sata_sil24.c +++ b/drivers/ata/sata_sil24.c @@ -370,6 +370,7 @@ static const struct pci_device_id sil24_pci_tbl[] = { { PCI_VDEVICE(INTEL, 0x3124), BID_SIL3124 }, { PCI_VDEVICE(CMD, 0x3132), BID_SIL3132 }, { PCI_VDEVICE(CMD, 0x0242), BID_SIL3132 }, + { PCI_VDEVICE(CMD, 0x0244), BID_SIL3132 }, { PCI_VDEVICE(CMD, 0x3131), BID_SIL3131 }, { PCI_VDEVICE(CMD, 0x3531), BID_SIL3131 }, diff --git a/drivers/ata/sata_uli.c b/drivers/ata/sata_uli.c index f277cea904c..db529b84994 100644 --- a/drivers/ata/sata_uli.c +++ b/drivers/ata/sata_uli.c @@ -83,6 +83,7 @@ static struct ata_port_operations uli_ops = { .inherits = &ata_bmdma_port_ops, .scr_read = uli_scr_read, .scr_write = uli_scr_write, + .hardreset = ATA_OP_NULL, }; static const struct ata_port_info uli_port_info = { diff --git a/drivers/auxdisplay/Kconfig b/drivers/auxdisplay/Kconfig index 043353bd060..14b9d5f4c20 100644 --- a/drivers/auxdisplay/Kconfig +++ b/drivers/auxdisplay/Kconfig @@ -64,7 +64,7 @@ config KS0108_DELAY Amount of time the ks0108 should wait between each control write to the parallel port. - If your driver seems to miss random writings, increment this. + If your LCD seems to miss random writings, increment this. If you don't know what I'm talking about, ignore it. diff --git a/drivers/auxdisplay/cfag12864b.c b/drivers/auxdisplay/cfag12864b.c index 80bb0610538..683509f013a 100644 --- a/drivers/auxdisplay/cfag12864b.c +++ b/drivers/auxdisplay/cfag12864b.c @@ -5,7 +5,7 @@ * License: GPLv2 * Depends: ks0108 * - * Author: Copyright (C) Miguel Ojeda Sandonis <maxextreme@gmail.com> + * Author: Copyright (C) Miguel Ojeda Sandonis * Date: 2006-10-31 * * This program is free software; you can redistribute it and/or modify @@ -398,5 +398,5 @@ module_init(cfag12864b_init); module_exit(cfag12864b_exit); MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("Miguel Ojeda Sandonis <maxextreme@gmail.com>"); +MODULE_AUTHOR("Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com>"); MODULE_DESCRIPTION("cfag12864b LCD driver"); diff --git a/drivers/auxdisplay/cfag12864bfb.c b/drivers/auxdisplay/cfag12864bfb.c index 307c190699e..fe3a865be4e 100644 --- a/drivers/auxdisplay/cfag12864bfb.c +++ b/drivers/auxdisplay/cfag12864bfb.c @@ -5,7 +5,7 @@ * License: GPLv2 * Depends: cfag12864b * - * Author: Copyright (C) Miguel Ojeda Sandonis <maxextreme@gmail.com> + * Author: Copyright (C) Miguel Ojeda Sandonis * Date: 2006-10-31 * * This program is free software; you can redistribute it and/or modify @@ -186,5 +186,5 @@ module_init(cfag12864bfb_init); module_exit(cfag12864bfb_exit); MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("Miguel Ojeda Sandonis <maxextreme@gmail.com>"); +MODULE_AUTHOR("Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com>"); MODULE_DESCRIPTION("cfag12864b LCD framebuffer driver"); diff --git a/drivers/auxdisplay/ks0108.c b/drivers/auxdisplay/ks0108.c index e6c3646ef18..5b93852392b 100644 --- a/drivers/auxdisplay/ks0108.c +++ b/drivers/auxdisplay/ks0108.c @@ -5,7 +5,7 @@ * License: GPLv2 * Depends: parport * - * Author: Copyright (C) Miguel Ojeda Sandonis <maxextreme@gmail.com> + * Author: Copyright (C) Miguel Ojeda Sandonis * Date: 2006-10-31 * * This program is free software; you can redistribute it and/or modify @@ -173,6 +173,6 @@ module_init(ks0108_init); module_exit(ks0108_exit); MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("Miguel Ojeda Sandonis <maxextreme@gmail.com>"); +MODULE_AUTHOR("Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com>"); MODULE_DESCRIPTION("ks0108 LCD Controller driver"); diff --git a/drivers/base/node.c b/drivers/base/node.c index 39f3d1b3a21..0f867a08333 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -84,8 +84,8 @@ static ssize_t node_read_meminfo(struct sys_device * dev, char * buf) nid, K(i.totalram), nid, K(i.freeram), nid, K(i.totalram - i.freeram), - nid, node_page_state(nid, NR_ACTIVE), - nid, node_page_state(nid, NR_INACTIVE), + nid, K(node_page_state(nid, NR_ACTIVE)), + nid, K(node_page_state(nid, NR_INACTIVE)), #ifdef CONFIG_HIGHMEM nid, K(i.totalhigh), nid, K(i.freehigh), diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 5f1e1cc6165..d81632cd7d0 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -106,35 +106,34 @@ MODULE_DEVICE_TABLE(pci, cciss_pci_device_id); /* board_id = Subsystem Device ID & Vendor ID * product = Marketing Name for the board * access = Address of the struct of function pointers - * nr_cmds = Number of commands supported by controller */ static struct board_type products[] = { - {0x40700E11, "Smart Array 5300", &SA5_access, 512}, - {0x40800E11, "Smart Array 5i", &SA5B_access, 512}, - {0x40820E11, "Smart Array 532", &SA5B_access, 512}, - {0x40830E11, "Smart Array 5312", &SA5B_access, 512}, - {0x409A0E11, "Smart Array 641", &SA5_access, 512}, - {0x409B0E11, "Smart Array 642", &SA5_access, 512}, - {0x409C0E11, "Smart Array 6400", &SA5_access, 512}, - {0x409D0E11, "Smart Array 6400 EM", &SA5_access, 512}, - {0x40910E11, "Smart Array 6i", &SA5_access, 512}, - {0x3225103C, "Smart Array P600", &SA5_access, 512}, - {0x3223103C, "Smart Array P800", &SA5_access, 512}, - {0x3234103C, "Smart Array P400", &SA5_access, 512}, - {0x3235103C, "Smart Array P400i", &SA5_access, 512}, - {0x3211103C, "Smart Array E200i", &SA5_access, 120}, - {0x3212103C, "Smart Array E200", &SA5_access, 120}, - {0x3213103C, "Smart Array E200i", &SA5_access, 120}, - {0x3214103C, "Smart Array E200i", &SA5_access, 120}, - {0x3215103C, "Smart Array E200i", &SA5_access, 120}, - {0x3237103C, "Smart Array E500", &SA5_access, 512}, - {0x323D103C, "Smart Array P700m", &SA5_access, 512}, - {0x3241103C, "Smart Array P212", &SA5_access, 384}, - {0x3243103C, "Smart Array P410", &SA5_access, 384}, - {0x3245103C, "Smart Array P410i", &SA5_access, 384}, - {0x3247103C, "Smart Array P411", &SA5_access, 384}, - {0x3249103C, "Smart Array P812", &SA5_access, 384}, - {0xFFFF103C, "Unknown Smart Array", &SA5_access, 120}, + {0x40700E11, "Smart Array 5300", &SA5_access}, + {0x40800E11, "Smart Array 5i", &SA5B_access}, + {0x40820E11, "Smart Array 532", &SA5B_access}, + {0x40830E11, "Smart Array 5312", &SA5B_access}, + {0x409A0E11, "Smart Array 641", &SA5_access}, + {0x409B0E11, "Smart Array 642", &SA5_access}, + {0x409C0E11, "Smart Array 6400", &SA5_access}, + {0x409D0E11, "Smart Array 6400 EM", &SA5_access}, + {0x40910E11, "Smart Array 6i", &SA5_access}, + {0x3225103C, "Smart Array P600", &SA5_access}, + {0x3223103C, "Smart Array P800", &SA5_access}, + {0x3234103C, "Smart Array P400", &SA5_access}, + {0x3235103C, "Smart Array P400i", &SA5_access}, + {0x3211103C, "Smart Array E200i", &SA5_access}, + {0x3212103C, "Smart Array E200", &SA5_access}, + {0x3213103C, "Smart Array E200i", &SA5_access}, + {0x3214103C, "Smart Array E200i", &SA5_access}, + {0x3215103C, "Smart Array E200i", &SA5_access}, + {0x3237103C, "Smart Array E500", &SA5_access}, + {0x323D103C, "Smart Array P700m", &SA5_access}, + {0x3241103C, "Smart Array P212", &SA5_access}, + {0x3243103C, "Smart Array P410", &SA5_access}, + {0x3245103C, "Smart Array P410i", &SA5_access}, + {0x3247103C, "Smart Array P411", &SA5_access}, + {0x3249103C, "Smart Array P812", &SA5_access}, + {0xFFFF103C, "Unknown Smart Array", &SA5_access}, }; /* How long to wait (in milliseconds) for board to go into simple mode */ @@ -3086,11 +3085,20 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev) print_cfg_table(c->cfgtable); #endif /* CCISS_DEBUG */ + /* Some controllers support Zero Memory Raid (ZMR). + * When configured in ZMR mode the number of supported + * commands drops to 64. So instead of just setting an + * arbitrary value we make the driver a little smarter. + * We read the config table to tell us how many commands + * are supported on the controller then subtract 4 to + * leave a little room for ioctl calls. + */ + c->max_commands = readl(&(c->cfgtable->CmdsOutMax)); for (i = 0; i < ARRAY_SIZE(products); i++) { if (board_id == products[i].board_id) { c->product_name = products[i].product_name; c->access = *(products[i].access); - c->nr_cmds = products[i].nr_cmds; + c->nr_cmds = c->max_commands - 4; break; } } @@ -3110,7 +3118,7 @@ static int __devinit cciss_pci_init(ctlr_info_t *c, struct pci_dev *pdev) if (subsystem_vendor_id == PCI_VENDOR_ID_HP) { c->product_name = products[i-1].product_name; c->access = *(products[i-1].access); - c->nr_cmds = products[i-1].nr_cmds; + c->nr_cmds = c->max_commands - 4; printk(KERN_WARNING "cciss: This is an unknown " "Smart Array controller.\n" "cciss: Please update to the latest driver " @@ -3546,6 +3554,10 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, for (j = 0; j <= hba[i]->highest_lun; j++) add_disk(hba[i]->gendisk[j]); + /* we must register the controller even if no disks exist */ + if (hba[i]->highest_lun == -1) + add_disk(hba[i]->gendisk[0]); + return 1; clean4: diff --git a/drivers/char/drm/i915_irq.c b/drivers/char/drm/i915_irq.c index f7f16e7a8bf..df036118b8b 100644 --- a/drivers/char/drm/i915_irq.c +++ b/drivers/char/drm/i915_irq.c @@ -62,11 +62,11 @@ static void i915_vblank_tasklet(struct drm_device *dev) u32 ropcpp = (0xcc << 16) | ((cpp - 1) << 24); RING_LOCALS; - if (sarea_priv->front_tiled) { + if (IS_I965G(dev) && sarea_priv->front_tiled) { cmd |= XY_SRC_COPY_BLT_DST_TILED; dst_pitch >>= 2; } - if (sarea_priv->back_tiled) { + if (IS_I965G(dev) && sarea_priv->back_tiled) { cmd |= XY_SRC_COPY_BLT_SRC_TILED; src_pitch >>= 2; } diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index e94bee03231..750131010af 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -3322,7 +3322,7 @@ static int send_break(struct tty_struct *tty, unsigned int duration) msleep_interruptible(duration); tty->ops->break_ctl(tty, 0); tty_write_unlock(tty); - if (!signal_pending(current)) + if (signal_pending(current)) return -EINTR; return 0; } diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c index 85e2ba7fcfb..bf4830082a1 100644 --- a/drivers/connector/connector.c +++ b/drivers/connector/connector.c @@ -27,6 +27,8 @@ #include <linux/moduleparam.h> #include <linux/connector.h> #include <linux/mutex.h> +#include <linux/proc_fs.h> +#include <linux/spinlock.h> #include <net/sock.h> @@ -403,6 +405,40 @@ static void cn_callback(void *data) mutex_unlock(¬ify_lock); } +static int cn_proc_show(struct seq_file *m, void *v) +{ + struct cn_queue_dev *dev = cdev.cbdev; + struct cn_callback_entry *cbq; + + seq_printf(m, "Name ID\n"); + + spin_lock_bh(&dev->queue_lock); + + list_for_each_entry(cbq, &dev->queue_list, callback_entry) { + seq_printf(m, "%-15s %u:%u\n", + cbq->id.name, + cbq->id.id.idx, + cbq->id.id.val); + } + + spin_unlock_bh(&dev->queue_lock); + + return 0; +} + +static int cn_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, cn_proc_show, NULL); +} + +static const struct file_operations cn_file_ops = { + .owner = THIS_MODULE, + .open = cn_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release +}; + static int __devinit cn_init(void) { struct cn_dev *dev = &cdev; @@ -434,6 +470,8 @@ static int __devinit cn_init(void) return -EINVAL; } + proc_net_fops_create(&init_net, "connector", S_IRUGO, &cn_file_ops); + return 0; } @@ -443,6 +481,8 @@ static void __devexit cn_fini(void) cn_already_initialized = 0; + proc_net_remove(&init_net, "connector"); + cn_del_callback(&dev->id); cn_queue_free_dev(dev->cbdev); netlink_kernel_release(dev->nls); diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index b2458bb8e9c..227d2e036cd 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -1051,7 +1051,8 @@ static int sbp2_scan_unit_dir(struct sbp2_target *tgt, u32 *directory, break; case SBP2_CSR_LOGICAL_UNIT_DIRECTORY: - if (sbp2_scan_logical_unit_dir(tgt, ci.p + value) < 0) + /* Adjust for the increment in the iterator */ + if (sbp2_scan_logical_unit_dir(tgt, ci.p - 1 + value) < 0) return -ENOMEM; break; } diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index bbd28342e77..008c38ba774 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -28,12 +28,18 @@ config DEBUG_GPIO comment "I2C GPIO expanders:" config GPIO_PCA953X - tristate "PCA953x I/O ports" + tristate "PCA953x, PCA955x, and MAX7310 I/O ports" depends on I2C help - Say yes here to support the PCA9534 (8-bit), PCA9535 (16-bit), - PCA9536 (4-bit), PCA9537 (4-bit), PCA9538 (8-bit), and PCA9539 - (16-bit) I/O ports. These parts are made by NXP and TI. + Say yes here to provide access to several register-oriented + SMBus I/O expanders, made mostly by NXP or TI. Compatible + models include: + + 4 bits: pca9536, pca9537 + + 8 bits: max7310, pca9534, pca9538, pca9554, pca9557 + + 16 bits: pca9535, pca9539, pca9555 This driver can also be built as a module. If so, the module will be called pca953x. diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c index 7e40e8a55ed..a380730b61a 100644 --- a/drivers/gpio/pca953x.c +++ b/drivers/gpio/pca953x.c @@ -33,7 +33,7 @@ static const struct i2c_device_id pca953x_id[] = { { "pca9554", 8, }, { "pca9555", 16, }, { "pca9557", 8, }, - /* REVISIT several pca955x parts should work here too */ + { "max7310", 8, }, { } }; MODULE_DEVICE_TABLE(i2c, pca953x_id); diff --git a/drivers/hwmon/hdaps.c b/drivers/hwmon/hdaps.c index 26df06f840e..50f22690d61 100644 --- a/drivers/hwmon/hdaps.c +++ b/drivers/hwmon/hdaps.c @@ -516,17 +516,23 @@ static struct dmi_system_id __initdata hdaps_whitelist[] = { HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R51"), HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R52"), HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad R61i"), + HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad R61"), HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad T41p"), HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad T41"), HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad T42p"), HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad T42"), HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad T43"), HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T60"), + HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T61p"), HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T61"), HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad X40"), HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad X41"), HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X60"), + HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X61s"), + HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X61"), HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad Z60m"), + HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad Z61m"), + HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad Z61p"), { .ident = NULL } }; diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index 1305ef190fc..9e8c875437b 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c @@ -290,12 +290,12 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) * bus, or started a new i2c message */ - if (iicstat & S3C2410_IICSTAT_LASTBIT && + if (iicstat & S3C2410_IICSTAT_LASTBIT && !(i2c->msg->flags & I2C_M_IGNORE_NAK)) { /* ack was not received... */ dev_dbg(i2c->dev, "ack was not received\n"); - s3c24xx_i2c_stop(i2c, -EREMOTEIO); + s3c24xx_i2c_stop(i2c, -ENXIO); goto out_ack; } @@ -305,7 +305,7 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) i2c->state = STATE_WRITE; /* terminate the transfer if there is nothing to do - * (used by the i2c probe to find devices */ + * as this is used by the i2c probe to find devices. */ if (is_lastmsg(i2c) && i2c->msg->len == 0) { s3c24xx_i2c_stop(i2c, 0); @@ -323,7 +323,17 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) * end of the message, and if so, work out what to do */ + if (!(i2c->msg->flags & I2C_M_IGNORE_NAK)) { + if (iicstat & S3C2410_IICSTAT_LASTBIT) { + dev_dbg(i2c->dev, "WRITE: No Ack\n"); + + s3c24xx_i2c_stop(i2c, -ECONNREFUSED); + goto out_ack; + } + } + retry_write: + if (!is_msgend(i2c)) { byte = i2c->msg->buf[i2c->msg_ptr++]; writeb(byte, i2c->regs + S3C2410_IICDS); @@ -377,17 +387,6 @@ static int i2s_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat) * going to do any more read/write */ - if (!(i2c->msg->flags & I2C_M_IGNORE_NAK) && - !(is_msglast(i2c) && is_lastmsg(i2c))) { - - if (iicstat & S3C2410_IICSTAT_LASTBIT) { - dev_dbg(i2c->dev, "READ: No Ack\n"); - - s3c24xx_i2c_stop(i2c, -ECONNREFUSED); - goto out_ack; - } - } - byte = readb(i2c->regs + S3C2410_IICDS); i2c->msg->buf[i2c->msg_ptr++] = byte; @@ -949,3 +948,4 @@ MODULE_DESCRIPTION("S3C24XX I2C Bus driver"); MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:s3c2410-i2c"); +MODULE_ALIAS("platform:s3c2440-i2c"); diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig index 8e07de23d22..1607536ff5f 100644 --- a/drivers/ide/Kconfig +++ b/drivers/ide/Kconfig @@ -823,6 +823,13 @@ config BLK_DEV_IDE_RAPIDE Say Y here if you want to support the Yellowstone RapIDE controller manufactured for use with Acorn computers. +config BLK_DEV_IDE_BAST + tristate "Simtec BAST / Thorcom VR1000 IDE support" + depends on ARM && (ARCH_BAST || MACH_VR1000) + help + Say Y here if you want to support the onboard IDE channels on the + Simtec BAST or the Thorcom VR1000 + config IDE_H8300 tristate "H8300 IDE support" depends on H8300 diff --git a/drivers/ide/arm/Makefile b/drivers/ide/arm/Makefile index 5bc26053afa..936e7b0237f 100644 --- a/drivers/ide/arm/Makefile +++ b/drivers/ide/arm/Makefile @@ -1,6 +1,7 @@ obj-$(CONFIG_BLK_DEV_IDE_ICSIDE) += icside.o obj-$(CONFIG_BLK_DEV_IDE_RAPIDE) += rapide.o +obj-$(CONFIG_BLK_DEV_IDE_BAST) += bast-ide.o obj-$(CONFIG_BLK_DEV_PALMCHIP_BK3710) += palm_bk3710.o ifeq ($(CONFIG_IDE_ARM), m) diff --git a/drivers/ide/arm/bast-ide.c b/drivers/ide/arm/bast-ide.c new file mode 100644 index 00000000000..8e8c28104b4 --- /dev/null +++ b/drivers/ide/arm/bast-ide.c @@ -0,0 +1,90 @@ +/* + * Copyright (c) 2003-2004 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * +*/ + +#include <linux/module.h> +#include <linux/errno.h> +#include <linux/ide.h> +#include <linux/init.h> + +#include <asm/mach-types.h> + +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/arch/map.h> +#include <asm/arch/bast-map.h> +#include <asm/arch/bast-irq.h> + +#define DRV_NAME "bast-ide" + +static int __init bastide_register(unsigned int base, unsigned int aux, int irq) +{ + ide_hwif_t *hwif; + hw_regs_t hw; + int i; + u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; + + memset(&hw, 0, sizeof(hw)); + + base += BAST_IDE_CS; + aux += BAST_IDE_CS; + + for (i = 0; i <= 7; i++) { + hw.io_ports_array[i] = (unsigned long)base; + base += 0x20; + } + + hw.io_ports.ctl_addr = aux + (6 * 0x20); + hw.irq = irq; + hw.chipset = ide_generic; + + hwif = ide_find_port(); + if (hwif == NULL) + goto out; + + i = hwif->index; + + ide_init_port_data(hwif, i); + ide_init_port_hw(hwif, &hw); + hwif->port_ops = NULL; + + idx[0] = i; + + ide_device_add(idx, NULL); +out: + return 0; +} + +static int __init bastide_init(void) +{ + unsigned long base = BAST_VA_IDEPRI + BAST_IDE_CS; + + /* we can treat the VR1000 and the BAST the same */ + + if (!(machine_is_bast() || machine_is_vr1000())) + return 0; + + printk("BAST: IDE driver, (c) 2003-2004 Simtec Electronics\n"); + + if (!request_mem_region(base, 0x400000, DRV_NAME)) { + printk(KERN_ERR "%s: resources busy\n", DRV_NAME); + return -EBUSY; + } + + bastide_register(BAST_VA_IDEPRI, BAST_VA_IDEPRIAUX, IRQ_IDE0); + bastide_register(BAST_VA_IDESEC, BAST_VA_IDESECAUX, IRQ_IDE1); + + return 0; +} + +module_init(bastide_init); + +MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Simtec BAST / Thorcom VR1000 IDE driver"); diff --git a/drivers/ide/arm/palm_bk3710.c b/drivers/ide/arm/palm_bk3710.c index cc24803fadf..2f2b4f4cf22 100644 --- a/drivers/ide/arm/palm_bk3710.c +++ b/drivers/ide/arm/palm_bk3710.c @@ -76,7 +76,7 @@ struct palm_bk3710_udmatiming { #include "../ide-timing.h" -static long ide_palm_clk; +static unsigned ideclk_period; /* in nanoseconds */ static const struct palm_bk3710_udmatiming palm_bk3710_udmatimings[6] = { {160, 240}, /* UDMA Mode 0 */ @@ -86,8 +86,6 @@ static const struct palm_bk3710_udmatiming palm_bk3710_udmatimings[6] = { {85, 60}, /* UDMA Mode 4 */ }; -static struct clk *ideclkp; - static void palm_bk3710_setudmamode(void __iomem *base, unsigned int dev, unsigned int mode) { @@ -97,10 +95,10 @@ static void palm_bk3710_setudmamode(void __iomem *base, unsigned int dev, /* DMA Data Setup */ t0 = DIV_ROUND_UP(palm_bk3710_udmatimings[mode].cycletime, - ide_palm_clk) - 1; - tenv = DIV_ROUND_UP(20, ide_palm_clk) - 1; + ideclk_period) - 1; + tenv = DIV_ROUND_UP(20, ideclk_period) - 1; trp = DIV_ROUND_UP(palm_bk3710_udmatimings[mode].rptime, - ide_palm_clk) - 1; + ideclk_period) - 1; /* udmatim Register */ val16 = readw(base + BK3710_UDMATIM) & (dev ? 0xFF0F : 0xFFF0); @@ -141,8 +139,8 @@ static void palm_bk3710_setdmamode(void __iomem *base, unsigned int dev, cycletime = max_t(int, t->cycle, min_cycle); /* DMA Data Setup */ - t0 = DIV_ROUND_UP(cycletime, ide_palm_clk); - td = DIV_ROUND_UP(t->active, ide_palm_clk); + t0 = DIV_ROUND_UP(cycletime, ideclk_period); + td = DIV_ROUND_UP(t->active, ideclk_period); tkw = t0 - td - 1; td -= 1; @@ -168,9 +166,9 @@ static void palm_bk3710_setpiomode(void __iomem *base, ide_drive_t *mate, struct ide_timing *t; /* PIO Data Setup */ - t0 = DIV_ROUND_UP(cycletime, ide_palm_clk); + t0 = DIV_ROUND_UP(cycletime, ideclk_period); t2 = DIV_ROUND_UP(ide_timing_find_mode(XFER_PIO_0 + mode)->active, - ide_palm_clk); + ideclk_period); t2i = t0 - t2 - 1; t2 -= 1; @@ -192,8 +190,8 @@ static void palm_bk3710_setpiomode(void __iomem *base, ide_drive_t *mate, /* TASKFILE Setup */ t = ide_timing_find_mode(XFER_PIO_0 + mode); - t0 = DIV_ROUND_UP(t->cyc8b, ide_palm_clk); - t2 = DIV_ROUND_UP(t->act8b, ide_palm_clk); + t0 = DIV_ROUND_UP(t->cyc8b, ideclk_period); + t2 = DIV_ROUND_UP(t->act8b, ideclk_period); t2i = t0 - t2 - 1; t2 -= 1; @@ -350,22 +348,22 @@ static const struct ide_port_info __devinitdata palm_bk3710_port_info = { static int __devinit palm_bk3710_probe(struct platform_device *pdev) { - struct clk *clkp; + struct clk *clk; struct resource *mem, *irq; ide_hwif_t *hwif; - unsigned long base; + unsigned long base, rate; int i; hw_regs_t hw; u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; - clkp = clk_get(NULL, "IDECLK"); - if (IS_ERR(clkp)) + clk = clk_get(NULL, "IDECLK"); + if (IS_ERR(clk)) return -ENODEV; - ideclkp = clkp; - clk_enable(ideclkp); - ide_palm_clk = clk_get_rate(ideclkp)/100000; - ide_palm_clk = (10000/ide_palm_clk) + 1; + clk_enable(clk); + rate = clk_get_rate(clk); + ideclk_period = 1000000000UL / rate; + /* Register the IDE interface with Linux ATA Interface */ memset(&hw, 0, sizeof(hw)); diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 380fa0c8cc8..26e68b65b7c 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -646,8 +646,6 @@ static int ide_register_port(ide_hwif_t *hwif) goto out; } - get_device(&hwif->gendev); - hwif->portdev = device_create_drvdata(ide_port_class, &hwif->gendev, MKDEV(0, 0), hwif, hwif->name); if (IS_ERR(hwif->portdev)) { @@ -1220,16 +1218,12 @@ static void drive_release_dev (struct device *dev) complete(&drive->gendev_rel_comp); } -#ifndef ide_default_irq -#define ide_default_irq(irq) 0 -#endif - static int hwif_init(ide_hwif_t *hwif) { int old_irq; if (!hwif->irq) { - hwif->irq = ide_default_irq(hwif->io_ports.data_addr); + hwif->irq = __ide_default_irq(hwif->io_ports.data_addr); if (!hwif->irq) { printk("%s: DISABLED, NO IRQ\n", hwif->name); return 0; @@ -1259,7 +1253,7 @@ static int hwif_init(ide_hwif_t *hwif) * It failed to initialise. Find the default IRQ for * this port and try that. */ - hwif->irq = ide_default_irq(hwif->io_ports.data_addr); + hwif->irq = __ide_default_irq(hwif->io_ports.data_addr); if (!hwif->irq) { printk("%s: Disabled unable to get IRQ %d.\n", hwif->name, old_irq); diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c index 55ec7f79877..8af88bf0969 100644 --- a/drivers/ide/ide-proc.c +++ b/drivers/ide/ide-proc.c @@ -76,7 +76,7 @@ static int proc_ide_read_mate ide_hwif_t *hwif = (ide_hwif_t *) data; int len; - if (hwif && hwif->mate && hwif->mate->present) + if (hwif && hwif->mate) len = sprintf(page, "%s\n", hwif->mate->name); else len = sprintf(page, "(none)\n"); diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index c758dcb13b1..300431d080a 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -315,13 +315,14 @@ void ide_unregister(ide_hwif_t *hwif) BUG_ON(in_interrupt()); BUG_ON(irqs_disabled()); + mutex_lock(&ide_cfg_mtx); - spin_lock_irq(&ide_lock); - if (!hwif->present) - goto abort; - __ide_port_unregister_devices(hwif); - hwif->present = 0; + spin_lock_irq(&ide_lock); + if (hwif->present) { + __ide_port_unregister_devices(hwif); + hwif->present = 0; + } spin_unlock_irq(&ide_lock); ide_proc_unregister_port(hwif); @@ -351,16 +352,15 @@ void ide_unregister(ide_hwif_t *hwif) blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<<PARTN_BITS); kfree(hwif->sg_table); unregister_blkdev(hwif->major, hwif->name); - spin_lock_irq(&ide_lock); if (hwif->dma_base) ide_release_dma_engine(hwif); + spin_lock_irq(&ide_lock); /* restore hwif data to pristine status */ ide_init_port_data(hwif, hwif->index); - -abort: spin_unlock_irq(&ide_lock); + mutex_unlock(&ide_cfg_mtx); } @@ -1094,13 +1094,6 @@ struct bus_type ide_bus_type = { EXPORT_SYMBOL_GPL(ide_bus_type); -static void ide_port_class_release(struct device *portdev) -{ - ide_hwif_t *hwif = dev_get_drvdata(portdev); - - put_device(&hwif->gendev); -} - int ide_vlb_clk; EXPORT_SYMBOL_GPL(ide_vlb_clk); @@ -1305,7 +1298,6 @@ static int __init ide_init(void) ret = PTR_ERR(ide_port_class); goto out_port_class; } - ide_port_class->dev_release = ide_port_class_release; init_ide_data(); diff --git a/drivers/ide/pci/it8213.c b/drivers/ide/pci/it8213.c index 9053c8771e6..2b71bdf74e7 100644 --- a/drivers/ide/pci/it8213.c +++ b/drivers/ide/pci/it8213.c @@ -184,8 +184,7 @@ static const struct ide_port_info it8213_chipsets[] __devinitdata = { static int __devinit it8213_init_one(struct pci_dev *dev, const struct pci_device_id *id) { - ide_setup_pci_device(dev, &it8213_chipsets[id->driver_data]); - return 0; + return ide_setup_pci_device(dev, &it8213_chipsets[id->driver_data]); } static const struct pci_device_id it8213_pci_tbl[] = { diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c index fec4955f449..a7a41bb8277 100644 --- a/drivers/ide/pci/ns87415.c +++ b/drivers/ide/pci/ns87415.c @@ -225,10 +225,6 @@ static int ns87415_dma_setup(ide_drive_t *drive) return 1; } -#ifndef ide_default_irq -#define ide_default_irq(irq) 0 -#endif - static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif) { struct pci_dev *dev = to_pci_dev(hwif->dev); @@ -288,7 +284,7 @@ static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif) } if (!using_inta) - hwif->irq = ide_default_irq(hwif->io_ports.data_addr); + hwif->irq = __ide_default_irq(hwif->io_ports.data_addr); else if (!hwif->irq && hwif->mate && hwif->mate->irq) hwif->irq = hwif->mate->irq; /* share IRQ with mate */ diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c index 8934178a23e..95f82cfb6c5 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_provider.c +++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c @@ -1096,7 +1096,9 @@ static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr, ch struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; PDBG("%s dev 0x%p\n", __func__, dev); + rtnl_lock(); lldev->ethtool_ops->get_drvinfo(lldev, &info); + rtnl_unlock(); return sprintf(buf, "%s\n", info.fw_version); } @@ -1109,7 +1111,9 @@ static ssize_t show_hca(struct device *dev, struct device_attribute *attr, struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev; PDBG("%s dev 0x%p\n", __func__, dev); + rtnl_lock(); lldev->ethtool_ops->get_drvinfo(lldev, &info); + rtnl_unlock(); return sprintf(buf, "%s\n", info.driver); } diff --git a/drivers/input/ff-core.c b/drivers/input/ff-core.c index eebc72465fc..72c63e5dd63 100644 --- a/drivers/input/ff-core.c +++ b/drivers/input/ff-core.c @@ -28,6 +28,7 @@ #include <linux/input.h> #include <linux/module.h> #include <linux/mutex.h> +#include <linux/sched.h> /* * Check that the effect_id is a valid effect and whether the user @@ -166,8 +167,10 @@ int input_ff_upload(struct input_dev *dev, struct ff_effect *effect, if (ret) goto out; + spin_lock_irq(&dev->event_lock); ff->effects[id] = *effect; ff->effect_owners[id] = file; + spin_unlock_irq(&dev->event_lock); out: mutex_unlock(&ff->mutex); @@ -189,16 +192,22 @@ static int erase_effect(struct input_dev *dev, int effect_id, if (error) return error; + spin_lock_irq(&dev->event_lock); ff->playback(dev, effect_id, 0); + ff->effect_owners[effect_id] = NULL; + spin_unlock_irq(&dev->event_lock); if (ff->erase) { error = ff->erase(dev, effect_id); - if (error) + if (error) { + spin_lock_irq(&dev->event_lock); + ff->effect_owners[effect_id] = file; + spin_unlock_irq(&dev->event_lock); + return error; + } } - ff->effect_owners[effect_id] = NULL; - return 0; } @@ -263,8 +272,6 @@ int input_ff_event(struct input_dev *dev, unsigned int type, if (type != EV_FF) return 0; - mutex_lock(&ff->mutex); - switch (code) { case FF_GAIN: if (!test_bit(FF_GAIN, dev->ffbit) || value > 0xffff) @@ -286,7 +293,6 @@ int input_ff_event(struct input_dev *dev, unsigned int type, break; } - mutex_unlock(&ff->mutex); return 0; } EXPORT_SYMBOL_GPL(input_ff_event); diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 835def11419..ab6a61db63c 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -432,6 +432,7 @@ static int crypt_convert(struct crypt_config *cc, case 0: atomic_dec(&ctx->pending); ctx->sector++; + cond_resched(); continue; /* error */ diff --git a/drivers/md/md.c b/drivers/md/md.c index 7cf512a34cc..2580ac1b9b0 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3897,8 +3897,10 @@ static void autorun_devices(int part) md_probe(dev, NULL, NULL); mddev = mddev_find(dev); - if (!mddev) { - printk(KERN_ERR + if (!mddev || !mddev->gendisk) { + if (mddev) + mddev_put(mddev); + printk(KERN_ERR "md: cannot allocate memory for md drive.\n"); break; } diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 1de17da34a9..a71277b640a 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2137,6 +2137,8 @@ static int run(mddev_t *mddev) !test_bit(In_sync, &disk->rdev->flags)) { disk->head_position = 0; mddev->degraded++; + if (disk->rdev) + conf->fullsync = 1; } } diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index c37e256b117..3b27df52456 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -2017,12 +2017,7 @@ static int __handle_issuing_new_read_requests5(struct stripe_head *sh, */ s->uptodate++; return 0; /* uptodate + compute == disks */ - } else if ((s->uptodate < disks - 1) && - test_bit(R5_Insync, &dev->flags)) { - /* Note: we hold off compute operations while checks are - * in flight, but we still prefer 'compute' over 'read' - * hence we only read if (uptodate < * disks-1) - */ + } else if (test_bit(R5_Insync, &dev->flags)) { set_bit(R5_LOCKED, &dev->flags); set_bit(R5_Wantread, &dev->flags); if (!test_and_set_bit(STRIPE_OP_IO, &sh->ops.pending)) @@ -2898,6 +2893,8 @@ static void handle_stripe5(struct stripe_head *sh) for (i = conf->raid_disks; i--; ) { set_bit(R5_Wantwrite, &sh->dev[i].flags); + set_bit(R5_LOCKED, &dev->flags); + s.locked++; if (!test_and_set_bit(STRIPE_OP_IO, &sh->ops.pending)) sh->ops.count++; } @@ -2911,6 +2908,7 @@ static void handle_stripe5(struct stripe_head *sh) conf->raid_disks); s.locked += handle_write_operations5(sh, 1, 1); } else if (s.expanded && + s.locked == 0 && !test_bit(STRIPE_OP_POSTXOR, &sh->ops.pending)) { clear_bit(STRIPE_EXPAND_READY, &sh->state); atomic_dec(&conf->reshape_stripes); @@ -4305,7 +4303,9 @@ static int run(mddev_t *mddev) " disk %d\n", bdevname(rdev->bdev,b), raid_disk); working_disks++; - } + } else + /* Cannot rely on bitmap to complete recovery */ + conf->fullsync = 1; } /* diff --git a/drivers/media/common/ir-keymaps.c b/drivers/media/common/ir-keymaps.c index a3485817e46..8fa91f846d5 100644 --- a/drivers/media/common/ir-keymaps.c +++ b/drivers/media/common/ir-keymaps.c @@ -2201,3 +2201,41 @@ IR_KEYTAB_TYPE ir_codes_powercolor_real_angel[IR_KEYTAB_SIZE] = { [0x25] = KEY_POWER, /* power */ }; EXPORT_SYMBOL_GPL(ir_codes_powercolor_real_angel); + +IR_KEYTAB_TYPE ir_codes_avermedia_a16d[IR_KEYTAB_SIZE] = { + [0x20] = KEY_LIST, + [0x00] = KEY_POWER, + [0x28] = KEY_1, + [0x18] = KEY_2, + [0x38] = KEY_3, + [0x24] = KEY_4, + [0x14] = KEY_5, + [0x34] = KEY_6, + [0x2c] = KEY_7, + [0x1c] = KEY_8, + [0x3c] = KEY_9, + [0x12] = KEY_SUBTITLE, + [0x22] = KEY_0, + [0x32] = KEY_REWIND, + [0x3a] = KEY_SHUFFLE, + [0x02] = KEY_PRINT, + [0x11] = KEY_CHANNELDOWN, + [0x31] = KEY_CHANNELUP, + [0x0c] = KEY_ZOOM, + [0x1e] = KEY_VOLUMEDOWN, + [0x3e] = KEY_VOLUMEUP, + [0x0a] = KEY_MUTE, + [0x04] = KEY_AUDIO, + [0x26] = KEY_RECORD, + [0x06] = KEY_PLAY, + [0x36] = KEY_STOP, + [0x16] = KEY_PAUSE, + [0x2e] = KEY_REWIND, + [0x0e] = KEY_FASTFORWARD, + [0x30] = KEY_TEXT, + [0x21] = KEY_GREEN, + [0x01] = KEY_BLUE, + [0x08] = KEY_EPG, + [0x2a] = KEY_MENU, +}; +EXPORT_SYMBOL_GPL(ir_codes_avermedia_a16d); diff --git a/drivers/media/common/tuners/tda18271-common.c b/drivers/media/common/tuners/tda18271-common.c index f1894fec32b..6fb5b458656 100644 --- a/drivers/media/common/tuners/tda18271-common.c +++ b/drivers/media/common/tuners/tda18271-common.c @@ -649,9 +649,17 @@ int tda18271_calc_rf_cal(struct dvb_frontend *fe, u32 *freq) u8 val; int ret = tda18271_lookup_map(fe, RF_CAL, freq, &val); + /* The TDA18271HD/C1 rf_cal map lookup is expected to go out of range + * for frequencies above 61.1 MHz. In these cases, the internal RF + * tracking filters calibration mechanism is used. + * + * There is no need to warn the user about this. + */ + if (ret < 0) + goto fail; regs[R_EB14] = val; - +fail: return ret; } diff --git a/drivers/media/common/tuners/tda18271-fe.c b/drivers/media/common/tuners/tda18271-fe.c index 89c01fb1f85..93063c6fbbf 100644 --- a/drivers/media/common/tuners/tda18271-fe.c +++ b/drivers/media/common/tuners/tda18271-fe.c @@ -45,6 +45,21 @@ static inline int charge_pump_source(struct dvb_frontend *fe, int force) TDA18271_MAIN_PLL, force); } +static inline void tda18271_set_if_notch(struct dvb_frontend *fe) +{ + struct tda18271_priv *priv = fe->tuner_priv; + unsigned char *regs = priv->tda18271_regs; + + switch (priv->mode) { + case TDA18271_ANALOG: + regs[R_MPD] &= ~0x80; /* IF notch = 0 */ + break; + case TDA18271_DIGITAL: + regs[R_MPD] |= 0x80; /* IF notch = 1 */ + break; + } +} + static int tda18271_channel_configuration(struct dvb_frontend *fe, struct tda18271_std_map_item *map, u32 freq, u32 bw) @@ -60,25 +75,18 @@ static int tda18271_channel_configuration(struct dvb_frontend *fe, regs[R_EP3] &= ~0x1f; /* clear std bits */ regs[R_EP3] |= (map->agc_mode << 3) | map->std; - /* set rfagc to high speed mode */ - regs[R_EP3] &= ~0x04; + if (priv->id == TDA18271HDC2) { + /* set rfagc to high speed mode */ + regs[R_EP3] &= ~0x04; + } /* set cal mode to normal */ regs[R_EP4] &= ~0x03; - /* update IF output level & IF notch frequency */ + /* update IF output level */ regs[R_EP4] &= ~0x1c; /* clear if level bits */ regs[R_EP4] |= (map->if_lvl << 2); - switch (priv->mode) { - case TDA18271_ANALOG: - regs[R_MPD] &= ~0x80; /* IF notch = 0 */ - break; - case TDA18271_DIGITAL: - regs[R_MPD] |= 0x80; /* IF notch = 1 */ - break; - } - /* update FM_RFn */ regs[R_EP4] &= ~0x80; regs[R_EP4] |= map->fm_rfn << 7; @@ -95,6 +103,9 @@ static int tda18271_channel_configuration(struct dvb_frontend *fe, /* disable Power Level Indicator */ regs[R_EP1] |= 0x40; + /* make sure thermometer is off */ + regs[R_TM] &= ~0x10; + /* frequency dependent parameters */ tda18271_calc_ir_measure(fe, &freq); @@ -135,6 +146,7 @@ static int tda18271_channel_configuration(struct dvb_frontend *fe, switch (priv->role) { case TDA18271_MASTER: tda18271_calc_main_pll(fe, N); + tda18271_set_if_notch(fe); tda18271_write_regs(fe, R_MPD, 4); break; case TDA18271_SLAVE: @@ -142,6 +154,7 @@ static int tda18271_channel_configuration(struct dvb_frontend *fe, tda18271_write_regs(fe, R_CPD, 4); regs[R_MPD] = regs[R_CPD] & 0x7f; + tda18271_set_if_notch(fe); tda18271_write_regs(fe, R_MPD, 1); break; } @@ -160,12 +173,14 @@ static int tda18271_channel_configuration(struct dvb_frontend *fe, msleep(20); - /* set rfagc to normal speed mode */ - if (map->fm_rfn) - regs[R_EP3] &= ~0x04; - else - regs[R_EP3] |= 0x04; - ret = tda18271_write_regs(fe, R_EP3, 1); + if (priv->id == TDA18271HDC2) { + /* set rfagc to normal speed mode */ + if (map->fm_rfn) + regs[R_EP3] &= ~0x04; + else + regs[R_EP3] |= 0x04; + ret = tda18271_write_regs(fe, R_EP3, 1); + } fail: return ret; } @@ -507,7 +522,7 @@ static int tda18271_powerscan_init(struct dvb_frontend *fe) /* set cal mode to normal */ regs[R_EP4] &= ~0x03; - /* update IF output level & IF notch frequency */ + /* update IF output level */ regs[R_EP4] &= ~0x1c; /* clear if level bits */ ret = tda18271_write_regs(fe, R_EP3, 2); diff --git a/drivers/media/common/tuners/xc5000.c b/drivers/media/common/tuners/xc5000.c index ceae6db901e..7cf4f5bdb2e 100644 --- a/drivers/media/common/tuners/xc5000.c +++ b/drivers/media/common/tuners/xc5000.c @@ -177,6 +177,7 @@ static XC_TV_STANDARD XC5000_Standard[MAX_TV_STANDARD] = { {"FM Radio-INPUT1", 0x0208, 0x9002} }; +static int xc5000_is_firmware_loaded(struct dvb_frontend *fe); static int xc5000_writeregs(struct xc5000_priv *priv, u8 *buf, u8 len); static int xc5000_readregs(struct xc5000_priv *priv, u8 *buf, u8 len); static void xc5000_TunerReset(struct dvb_frontend *fe); @@ -352,7 +353,7 @@ static int xc_SetTVStandard(struct xc5000_priv *priv, static int xc_shutdown(struct xc5000_priv *priv) { - return 0; + return XC_RESULT_SUCCESS; /* Fixme: cannot bring tuner back alive once shutdown * without reloading the driver modules. * return xc_write_reg(priv, XREG_POWER_DOWN, 0); @@ -685,6 +686,25 @@ static int xc5000_set_params(struct dvb_frontend *fe, return 0; } +static int xc5000_is_firmware_loaded(struct dvb_frontend *fe) +{ + struct xc5000_priv *priv = fe->tuner_priv; + int ret; + u16 id; + + ret = xc5000_readreg(priv, XREG_PRODUCT_ID, &id); + if (ret == XC_RESULT_SUCCESS) { + if (id == XC_PRODUCT_ID_FW_NOT_LOADED) + ret = XC_RESULT_RESET_FAILURE; + else + ret = XC_RESULT_SUCCESS; + } + + dprintk(1, "%s() returns %s id = 0x%x\n", __func__, + ret == XC_RESULT_SUCCESS ? "True" : "False", id); + return ret; +} + static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe); static int xc5000_set_analog_params(struct dvb_frontend *fe, @@ -693,7 +713,7 @@ static int xc5000_set_analog_params(struct dvb_frontend *fe, struct xc5000_priv *priv = fe->tuner_priv; int ret; - if(priv->fwloaded == 0) + if (xc5000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS) xc_load_fw_and_init_tuner(fe); dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n", @@ -808,11 +828,10 @@ static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe) struct xc5000_priv *priv = fe->tuner_priv; int ret = 0; - if (priv->fwloaded == 0) { + if (xc5000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS) { ret = xc5000_fwupload(fe); if (ret != XC_RESULT_SUCCESS) return ret; - priv->fwloaded = 1; } /* Start the tuner self-calibration process */ @@ -852,7 +871,6 @@ static int xc5000_sleep(struct dvb_frontend *fe) return -EREMOTEIO; } else { - /* priv->fwloaded = 0; */ return XC_RESULT_SUCCESS; } } @@ -933,7 +951,6 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe, cfg->i2c_address); printk(KERN_INFO "xc5000: Firmware has been loaded previously\n"); - priv->fwloaded = 1; break; case XC_PRODUCT_ID_FW_NOT_LOADED: printk(KERN_INFO @@ -941,7 +958,6 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe, cfg->i2c_address); printk(KERN_INFO "xc5000: Firmware has not been loaded previously\n"); - priv->fwloaded = 0; break; default: printk(KERN_ERR diff --git a/drivers/media/common/tuners/xc5000_priv.h b/drivers/media/common/tuners/xc5000_priv.h index ecebfe4745a..a72a9887fe7 100644 --- a/drivers/media/common/tuners/xc5000_priv.h +++ b/drivers/media/common/tuners/xc5000_priv.h @@ -30,7 +30,6 @@ struct xc5000_priv { u32 bandwidth; u8 video_standard; u8 rf_mode; - u8 fwloaded; void *devptr; }; diff --git a/drivers/media/dvb/dvb-usb/gl861.c b/drivers/media/dvb/dvb-usb/gl861.c index 0a8ac64a4e3..037f7ffb47b 100644 --- a/drivers/media/dvb/dvb-usb/gl861.c +++ b/drivers/media/dvb/dvb-usb/gl861.c @@ -47,6 +47,8 @@ static int gl861_i2c_msg(struct dvb_usb_device *d, u8 addr, return -EINVAL; } + msleep(1); /* avoid I2C errors */ + return usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), req, type, value, index, rbuf, rlen, 2000); } @@ -92,16 +94,6 @@ static struct i2c_algorithm gl861_i2c_algo = { }; /* Callbacks for DVB USB */ -static int gl861_identify_state(struct usb_device *udev, - struct dvb_usb_device_properties *props, - struct dvb_usb_device_description **desc, - int *cold) -{ - *cold = 0; - - return 0; -} - static struct zl10353_config gl861_zl10353_config = { .demod_address = 0x0f, .no_tuner = 1, @@ -172,7 +164,6 @@ static struct dvb_usb_device_properties gl861_properties = { .size_of_priv = 0, - .identify_state = gl861_identify_state, .num_adapters = 1, .adapter = {{ @@ -194,13 +185,15 @@ static struct dvb_usb_device_properties gl861_properties = { .num_device_descs = 2, .devices = { - { "MSI Mega Sky 55801 DVB-T USB2.0", - { &gl861_table[0], NULL }, - { NULL }, + { + .name = "MSI Mega Sky 55801 DVB-T USB2.0", + .cold_ids = { NULL }, + .warm_ids = { &gl861_table[0], NULL }, }, - { "A-LINK DTU DVB-T USB2.0", - { &gl861_table[1], NULL }, - { NULL }, + { + .name = "A-LINK DTU DVB-T USB2.0", + .cold_ids = { NULL }, + .warm_ids = { &gl861_table[1], NULL }, }, } }; diff --git a/drivers/media/dvb/dvb-usb/umt-010.c b/drivers/media/dvb/dvb-usb/umt-010.c index 9e7653bb3b6..118aab1a3e5 100644 --- a/drivers/media/dvb/dvb-usb/umt-010.c +++ b/drivers/media/dvb/dvb-usb/umt-010.c @@ -107,7 +107,7 @@ static struct dvb_usb_device_properties umt_properties = { /* parameter for the MPEG2-data transfer */ .stream = { .type = USB_BULK, - .count = 20, + .count = MAX_NO_URBS_FOR_DATA_STREAM, .endpoint = 0x06, .u = { .bulk = { diff --git a/drivers/media/dvb/frontends/au8522.c b/drivers/media/dvb/frontends/au8522.c index 084a280c2d7..03900d241a7 100644 --- a/drivers/media/dvb/frontends/au8522.c +++ b/drivers/media/dvb/frontends/au8522.c @@ -463,10 +463,13 @@ static int au8522_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *p) { struct au8522_state *state = fe->demodulator_priv; + int ret = -EINVAL; dprintk("%s(frequency=%d)\n", __func__, p->frequency); - state->current_frequency = p->frequency; + if ((state->current_frequency == p->frequency) && + (state->current_modulation == p->u.vsb.modulation)) + return 0; au8522_enable_modulation(fe, p->u.vsb.modulation); @@ -476,11 +479,16 @@ static int au8522_set_frontend(struct dvb_frontend *fe, if (fe->ops.tuner_ops.set_params) { if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); - fe->ops.tuner_ops.set_params(fe, p); + ret = fe->ops.tuner_ops.set_params(fe, p); if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); } + if (ret < 0) + return ret; + + state->current_frequency = p->frequency; + return 0; } @@ -498,6 +506,16 @@ static int au8522_init(struct dvb_frontend *fe) return 0; } +static int au8522_sleep(struct dvb_frontend *fe) +{ + struct au8522_state *state = fe->demodulator_priv; + dprintk("%s()\n", __func__); + + state->current_frequency = 0; + + return 0; +} + static int au8522_read_status(struct dvb_frontend *fe, fe_status_t *status) { struct au8522_state *state = fe->demodulator_priv; @@ -509,10 +527,8 @@ static int au8522_read_status(struct dvb_frontend *fe, fe_status_t *status) if (state->current_modulation == VSB_8) { dprintk("%s() Checking VSB_8\n", __func__); reg = au8522_readreg(state, 0x4088); - if (reg & 0x01) - *status |= FE_HAS_VITERBI; - if (reg & 0x02) - *status |= FE_HAS_LOCK | FE_HAS_SYNC; + if ((reg & 0x03) == 0x03) + *status |= FE_HAS_LOCK | FE_HAS_SYNC | FE_HAS_VITERBI; } else { dprintk("%s() Checking QAM\n", __func__); reg = au8522_readreg(state, 0x4541); @@ -672,6 +688,7 @@ static struct dvb_frontend_ops au8522_ops = { }, .init = au8522_init, + .sleep = au8522_sleep, .i2c_gate_ctrl = au8522_i2c_gate_ctrl, .set_frontend = au8522_set_frontend, .get_frontend = au8522_get_frontend, diff --git a/drivers/media/dvb/frontends/stv0299.c b/drivers/media/dvb/frontends/stv0299.c index 17556183e87..35435bef8e7 100644 --- a/drivers/media/dvb/frontends/stv0299.c +++ b/drivers/media/dvb/frontends/stv0299.c @@ -63,6 +63,7 @@ struct stv0299_state { u32 symbol_rate; fe_code_rate_t fec_inner; int errmode; + u32 ucblocks; }; #define STATUS_BER 0 @@ -501,8 +502,10 @@ static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber) { struct stv0299_state* state = fe->demodulator_priv; - if (state->errmode != STATUS_BER) return 0; - *ber = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e); + if (state->errmode != STATUS_BER) + return -ENOSYS; + + *ber = stv0299_readreg(state, 0x1e) | (stv0299_readreg(state, 0x1d) << 8); return 0; } @@ -540,8 +543,12 @@ static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) { struct stv0299_state* state = fe->demodulator_priv; - if (state->errmode != STATUS_UCBLOCKS) *ucblocks = 0; - else *ucblocks = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e); + if (state->errmode != STATUS_UCBLOCKS) + return -ENOSYS; + + state->ucblocks += stv0299_readreg(state, 0x1e); + state->ucblocks += (stv0299_readreg(state, 0x1d) << 8); + *ucblocks = state->ucblocks; return 0; } diff --git a/drivers/media/dvb/frontends/tda10023.c b/drivers/media/dvb/frontends/tda10023.c index 0727b80bc4d..c6ff5b82ff8 100644 --- a/drivers/media/dvb/frontends/tda10023.c +++ b/drivers/media/dvb/frontends/tda10023.c @@ -116,9 +116,12 @@ static u8 tda10023_readreg (struct tda10023_state* state, u8 reg) int ret; ret = i2c_transfer (state->i2c, msg, 2); - if (ret != 2) - printk("DVB: TDA10023: %s: readreg error (ret == %i)\n", - __func__, ret); + if (ret != 2) { + int num = state->frontend.dvb ? state->frontend.dvb->num : -1; + printk(KERN_ERR "DVB: TDA10023(%d): %s: readreg error " + "(reg == 0x%02x, ret == %i)\n", + num, __func__, reg, ret); + } return b1[0]; } @@ -129,11 +132,12 @@ static int tda10023_writereg (struct tda10023_state* state, u8 reg, u8 data) int ret; ret = i2c_transfer (state->i2c, &msg, 1); - if (ret != 1) - printk("DVB: TDA10023(%d): %s, writereg error " + if (ret != 1) { + int num = state->frontend.dvb ? state->frontend.dvb->num : -1; + printk(KERN_ERR "DVB: TDA10023(%d): %s, writereg error " "(reg == 0x%02x, val == 0x%02x, ret == %i)\n", - state->frontend.dvb->num, __func__, reg, data, ret); - + num, __func__, reg, data, ret); + } return (ret != 1) ? -EREMOTEIO : 0; } @@ -464,7 +468,7 @@ struct dvb_frontend* tda10023_attach(const struct tda1002x_config* config, int i; /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct tda10023_state), GFP_KERNEL); + state = kzalloc(sizeof(struct tda10023_state), GFP_KERNEL); if (state == NULL) goto error; /* setup the state */ diff --git a/drivers/media/dvb/frontends/tda1004x.c b/drivers/media/dvb/frontends/tda1004x.c index 49973846373..a0d63865356 100644 --- a/drivers/media/dvb/frontends/tda1004x.c +++ b/drivers/media/dvb/frontends/tda1004x.c @@ -1248,11 +1248,14 @@ struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config, struct i2c_adapter* i2c) { struct tda1004x_state *state; + int id; /* allocate memory for the internal state */ state = kmalloc(sizeof(struct tda1004x_state), GFP_KERNEL); - if (!state) + if (!state) { + printk(KERN_ERR "Can't alocate memory for tda10045 state\n"); return NULL; + } /* setup the state */ state->config = config; @@ -1260,7 +1263,15 @@ struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config, state->demod_type = TDA1004X_DEMOD_TDA10045; /* check if the demod is there */ - if (tda1004x_read_byte(state, TDA1004X_CHIPID) != 0x25) { + id = tda1004x_read_byte(state, TDA1004X_CHIPID); + if (id < 0) { + printk(KERN_ERR "tda10045: chip is not answering. Giving up.\n"); + kfree(state); + return NULL; + } + + if (id != 0x25) { + printk(KERN_ERR "Invalid tda1004x ID = 0x%02x. Can't proceed\n", id); kfree(state); return NULL; } @@ -1307,11 +1318,14 @@ struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config, struct i2c_adapter* i2c) { struct tda1004x_state *state; + int id; /* allocate memory for the internal state */ state = kmalloc(sizeof(struct tda1004x_state), GFP_KERNEL); - if (!state) + if (!state) { + printk(KERN_ERR "Can't alocate memory for tda10046 state\n"); return NULL; + } /* setup the state */ state->config = config; @@ -1319,7 +1333,14 @@ struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config, state->demod_type = TDA1004X_DEMOD_TDA10046; /* check if the demod is there */ - if (tda1004x_read_byte(state, TDA1004X_CHIPID) != 0x46) { + id = tda1004x_read_byte(state, TDA1004X_CHIPID); + if (id < 0) { + printk(KERN_ERR "tda10046: chip is not answering. Giving up.\n"); + kfree(state); + return NULL; + } + if (id != 0x46) { + printk(KERN_ERR "Invalid tda1004x ID = 0x%02x. Can't proceed\n", id); kfree(state); return NULL; } diff --git a/drivers/media/dvb/ttpci/Kconfig b/drivers/media/dvb/ttpci/Kconfig index d4339b1b3b6..07643e01009 100644 --- a/drivers/media/dvb/ttpci/Kconfig +++ b/drivers/media/dvb/ttpci/Kconfig @@ -101,6 +101,7 @@ config DVB_BUDGET config DVB_BUDGET_CI tristate "Budget cards with onboard CI connector" depends on DVB_BUDGET_CORE && I2C + depends on INPUT # due to IR select DVB_STV0297 if !DVB_FE_CUSTOMISE select DVB_STV0299 if !DVB_FE_CUSTOMISE select DVB_TDA1004X if !DVB_FE_CUSTOMISE diff --git a/drivers/media/dvb/ttpci/av7110_hw.c b/drivers/media/dvb/ttpci/av7110_hw.c index 9d81074b31d..3a3f5279e92 100644 --- a/drivers/media/dvb/ttpci/av7110_hw.c +++ b/drivers/media/dvb/ttpci/av7110_hw.c @@ -427,6 +427,7 @@ static int __av7110_send_fw_cmd(struct av7110 *av7110, u16* buf, int length) if (err) { printk(KERN_ERR "%s: timeout waiting on busy %s QUEUE\n", __func__, type); + av7110->arm_errors++; return -ETIMEDOUT; } msleep(1); @@ -853,10 +854,8 @@ static osd_raw_window_t bpp2bit[8] = { static inline int WaitUntilBmpLoaded(struct av7110 *av7110) { - int ret = wait_event_interruptible_timeout(av7110->bmpq, + int ret = wait_event_timeout(av7110->bmpq, av7110->bmp_state != BMP_LOADING, 10*HZ); - if (ret == -ERESTARTSYS) - return ret; if (ret == 0) { printk("dvb-ttpci: warning: timeout waiting in LoadBitmap: %d, %d\n", ret, av7110->bmp_state); diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig index 3b26fbd3e55..5ccb0aeca8c 100644 --- a/drivers/media/video/Kconfig +++ b/drivers/media/video/Kconfig @@ -793,6 +793,14 @@ menuconfig V4L_USB_DRIVERS if V4L_USB_DRIVERS && USB +config USB_VIDEO_CLASS + tristate "USB Video Class (UVC)" + ---help--- + Support for the USB Video Class (UVC). Currently only video + input devices, such as webcams, are supported. + + For more information see: <http://linux-uvc.berlios.de/> + source "drivers/media/video/pvrusb2/Kconfig" source "drivers/media/video/em28xx/Kconfig" diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile index dff0d6abe91..ecbbfaab24d 100644 --- a/drivers/media/video/Makefile +++ b/drivers/media/video/Makefile @@ -136,6 +136,8 @@ obj-$(CONFIG_SOC_CAMERA_MT9V022) += mt9v022.o obj-$(CONFIG_VIDEO_AU0828) += au0828/ +obj-$(CONFIG_USB_VIDEO_CLASS) += uvc/ + EXTRA_CFLAGS += -Idrivers/media/dvb/dvb-core EXTRA_CFLAGS += -Idrivers/media/dvb/frontends EXTRA_CFLAGS += -Idrivers/media/common/tuners diff --git a/drivers/media/video/au0828/au0828-cards.c b/drivers/media/video/au0828/au0828-cards.c index a2a6983444f..898e12395e7 100644 --- a/drivers/media/video/au0828/au0828-cards.c +++ b/drivers/media/video/au0828/au0828-cards.c @@ -77,8 +77,14 @@ static void hauppauge_eeprom(struct au0828_dev *dev, u8 *eeprom_data) /* Make sure we support the board model */ switch (tv.model) { + case 72000: /* WinTV-HVR950q (Retail, IR, ATSC/QAM */ case 72001: /* WinTV-HVR950q (Retail, IR, ATSC/QAM and basic analog video */ + case 72211: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and basic analog video */ + case 72221: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and basic analog video */ + case 72231: /* WinTV-HVR950q (OEM, IR, ATSC/QAM and basic analog video */ + case 72241: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM and basic analog video */ case 72301: /* WinTV-HVR850 (Retail, IR, ATSC and basic analog video */ + case 72500: /* WinTV-HVR950q (OEM, No IR, ATSC/QAM */ break; default: printk(KERN_WARNING "%s: warning: " @@ -175,6 +181,18 @@ struct usb_device_id au0828_usb_id_table [] = { .driver_info = AU0828_BOARD_HAUPPAUGE_HVR850 }, { USB_DEVICE(0x0fe9, 0xd620), .driver_info = AU0828_BOARD_DVICO_FUSIONHDTV7 }, + { USB_DEVICE(0x2040, 0x7210), + .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q }, + { USB_DEVICE(0x2040, 0x7217), + .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q }, + { USB_DEVICE(0x2040, 0x721b), + .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q }, + { USB_DEVICE(0x2040, 0x721f), + .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q }, + { USB_DEVICE(0x2040, 0x7280), + .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q }, + { USB_DEVICE(0x0fd9, 0x0008), + .driver_info = AU0828_BOARD_HAUPPAUGE_HVR950Q }, { }, }; diff --git a/drivers/media/video/cx18/Kconfig b/drivers/media/video/cx18/Kconfig index 5f942690570..9aefdc5ea79 100644 --- a/drivers/media/video/cx18/Kconfig +++ b/drivers/media/video/cx18/Kconfig @@ -10,8 +10,8 @@ config VIDEO_CX18 select VIDEO_TVEEPROM select VIDEO_CX2341X select VIDEO_CS5345 - select DVB_S5H1409 - select MEDIA_TUNER_MXL5005S + select DVB_S5H1409 if !DVB_FE_CUSTOMISE + select MEDIA_TUNER_MXL5005S if !DVB_FE_CUSTOMISE ---help--- This is a video4linux driver for Conexant cx23418 based PCI combo video recorder devices. diff --git a/drivers/media/video/cx18/cx18-av-core.c b/drivers/media/video/cx18/cx18-av-core.c index 9a26751615c..faca43eb940 100644 --- a/drivers/media/video/cx18/cx18-av-core.c +++ b/drivers/media/video/cx18/cx18-av-core.c @@ -69,6 +69,58 @@ int cx18_av_and_or4(struct cx18 *cx, u16 addr, u32 and_mask, or_value); } +int cx18_av_write_no_acfg(struct cx18 *cx, u16 addr, u8 value, int no_acfg_mask) +{ + int retval; + u32 saved_reg[8] = {0}; + + if (no_acfg_mask & CXADEC_NO_ACFG_AFE) { + saved_reg[0] = cx18_av_read4(cx, CXADEC_CHIP_CTRL); + saved_reg[1] = cx18_av_read4(cx, CXADEC_AFE_CTRL); + } + + if (no_acfg_mask & CXADEC_NO_ACFG_PLL) { + saved_reg[2] = cx18_av_read4(cx, CXADEC_PLL_CTRL1); + saved_reg[3] = cx18_av_read4(cx, CXADEC_VID_PLL_FRAC); + } + + if (no_acfg_mask & CXADEC_NO_ACFG_VID) { + saved_reg[4] = cx18_av_read4(cx, CXADEC_HORIZ_TIM_CTRL); + saved_reg[5] = cx18_av_read4(cx, CXADEC_VERT_TIM_CTRL); + saved_reg[6] = cx18_av_read4(cx, CXADEC_SRC_COMB_CFG); + saved_reg[7] = cx18_av_read4(cx, CXADEC_CHROMA_VBIOFF_CFG); + } + + retval = cx18_av_write(cx, addr, value); + + if (no_acfg_mask & CXADEC_NO_ACFG_AFE) { + cx18_av_write4(cx, CXADEC_CHIP_CTRL, saved_reg[0]); + cx18_av_write4(cx, CXADEC_AFE_CTRL, saved_reg[1]); + } + + if (no_acfg_mask & CXADEC_NO_ACFG_PLL) { + cx18_av_write4(cx, CXADEC_PLL_CTRL1, saved_reg[2]); + cx18_av_write4(cx, CXADEC_VID_PLL_FRAC, saved_reg[3]); + } + + if (no_acfg_mask & CXADEC_NO_ACFG_VID) { + cx18_av_write4(cx, CXADEC_HORIZ_TIM_CTRL, saved_reg[4]); + cx18_av_write4(cx, CXADEC_VERT_TIM_CTRL, saved_reg[5]); + cx18_av_write4(cx, CXADEC_SRC_COMB_CFG, saved_reg[6]); + cx18_av_write4(cx, CXADEC_CHROMA_VBIOFF_CFG, saved_reg[7]); + } + + return retval; +} + +int cx18_av_and_or_no_acfg(struct cx18 *cx, u16 addr, unsigned and_mask, + u8 or_value, int no_acfg_mask) +{ + return cx18_av_write_no_acfg(cx, addr, + (cx18_av_read(cx, addr) & and_mask) | + or_value, no_acfg_mask); +} + /* ----------------------------------------------------------------------- */ static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input, @@ -170,13 +222,15 @@ static void input_change(struct cx18 *cx) /* Follow step 8c and 8d of section 3.16 in the cx18_av datasheet */ if (std & V4L2_STD_SECAM) - cx18_av_write(cx, 0x402, 0); + cx18_av_write_no_acfg(cx, 0x402, 0, CXADEC_NO_ACFG_ALL); else { - cx18_av_write(cx, 0x402, 0x04); + cx18_av_write_no_acfg(cx, 0x402, 0x04, CXADEC_NO_ACFG_ALL); cx18_av_write(cx, 0x49f, (std & V4L2_STD_NTSC) ? 0x14 : 0x11); } - cx18_av_and_or(cx, 0x401, ~0x60, 0); - cx18_av_and_or(cx, 0x401, ~0x60, 0x60); + cx18_av_and_or_no_acfg(cx, 0x401, ~0x60, 0, + CXADEC_NO_ACFG_PLL | CXADEC_NO_ACFG_VID); + cx18_av_and_or_no_acfg(cx, 0x401, ~0x60, 0x60, + CXADEC_NO_ACFG_PLL | CXADEC_NO_ACFG_VID); if (std & V4L2_STD_525_60) { if (std == V4L2_STD_NTSC_M_JP) { @@ -228,7 +282,7 @@ static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input, if ((vid_input & ~0xff0) || luma < CX18_AV_SVIDEO_LUMA1 || - luma > CX18_AV_SVIDEO_LUMA4 || + luma > CX18_AV_SVIDEO_LUMA8 || chroma < CX18_AV_SVIDEO_CHROMA4 || chroma > CX18_AV_SVIDEO_CHROMA8) { CX18_ERR("0x%04x is not a valid video input!\n", @@ -262,7 +316,8 @@ static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input, cx18_av_write(cx, 0x103, reg); /* Set INPUT_MODE to Composite (0) or S-Video (1) */ - cx18_av_and_or(cx, 0x401, ~0x6, is_composite ? 0 : 0x02); + cx18_av_and_or_no_acfg(cx, 0x401, ~0x6, is_composite ? 0 : 0x02, + CXADEC_NO_ACFG_PLL | CXADEC_NO_ACFG_VID); /* Set CH_SEL_ADC2 to 1 if input comes from CH3 */ cx18_av_and_or(cx, 0x102, ~0x2, (reg & 0x80) == 0 ? 2 : 0); /* Set DUAL_MODE_ADC2 to 1 if input comes from both CH2 and CH3 */ @@ -318,12 +373,12 @@ static int set_v4lstd(struct cx18 *cx) This happens for example with the Yuan MPC622. */ if (fmt >= 4 && fmt < 8) { /* Set format to NTSC-M */ - cx18_av_and_or(cx, 0x400, ~0xf, 1); + cx18_av_and_or_no_acfg(cx, 0x400, ~0xf, 1, CXADEC_NO_ACFG_AFE); /* Turn off LCOMB */ cx18_av_and_or(cx, 0x47b, ~6, 0); } - cx18_av_and_or(cx, 0x400, ~0xf, fmt); - cx18_av_and_or(cx, 0x403, ~0x3, pal_m); + cx18_av_and_or_no_acfg(cx, 0x400, ~0xf, fmt, CXADEC_NO_ACFG_AFE); + cx18_av_and_or_no_acfg(cx, 0x403, ~0x3, pal_m, CXADEC_NO_ACFG_ALL); cx18_av_vbi_setup(cx); input_change(cx); return 0; diff --git a/drivers/media/video/cx18/cx18-av-core.h b/drivers/media/video/cx18/cx18-av-core.h index 786901d72e9..c172823ce1d 100644 --- a/drivers/media/video/cx18/cx18-av-core.h +++ b/drivers/media/video/cx18/cx18-av-core.h @@ -37,12 +37,16 @@ enum cx18_av_video_input { CX18_AV_COMPOSITE7, CX18_AV_COMPOSITE8, - /* S-Video inputs consist of one luma input (In1-In4) ORed with one + /* S-Video inputs consist of one luma input (In1-In8) ORed with one chroma input (In5-In8) */ CX18_AV_SVIDEO_LUMA1 = 0x10, CX18_AV_SVIDEO_LUMA2 = 0x20, CX18_AV_SVIDEO_LUMA3 = 0x30, CX18_AV_SVIDEO_LUMA4 = 0x40, + CX18_AV_SVIDEO_LUMA5 = 0x50, + CX18_AV_SVIDEO_LUMA6 = 0x60, + CX18_AV_SVIDEO_LUMA7 = 0x70, + CX18_AV_SVIDEO_LUMA8 = 0x80, CX18_AV_SVIDEO_CHROMA4 = 0x400, CX18_AV_SVIDEO_CHROMA5 = 0x500, CX18_AV_SVIDEO_CHROMA6 = 0x600, @@ -291,14 +295,24 @@ struct cx18_av_state { #define CXADEC_SELECT_AUDIO_STANDARD_FM 0xF9 /* FM radio */ #define CXADEC_SELECT_AUDIO_STANDARD_AUTO 0xFF /* Auto detect */ +/* Flags on what to preserve on write to 0x400-0x403 with cx18_av_.*_no_acfg()*/ +#define CXADEC_NO_ACFG_AFE 0x01 /* Preserve 0x100-0x107 */ +#define CXADEC_NO_ACFG_PLL 0x02 /* Preserve 0x108-0x10f */ +#define CXADEC_NO_ACFG_VID 0x04 /* Preserve 0x470-0x47f */ +#define CXADEC_NO_ACFG_ALL 0x07 + /* ----------------------------------------------------------------------- */ /* cx18_av-core.c */ int cx18_av_write(struct cx18 *cx, u16 addr, u8 value); int cx18_av_write4(struct cx18 *cx, u16 addr, u32 value); +int cx18_av_write_no_acfg(struct cx18 *cx, u16 addr, u8 value, + int no_acfg_mask); u8 cx18_av_read(struct cx18 *cx, u16 addr); u32 cx18_av_read4(struct cx18 *cx, u16 addr); int cx18_av_and_or(struct cx18 *cx, u16 addr, unsigned mask, u8 value); int cx18_av_and_or4(struct cx18 *cx, u16 addr, u32 mask, u32 value); +int cx18_av_and_or_no_acfg(struct cx18 *cx, u16 addr, unsigned mask, u8 value, + int no_acfg_mask); int cx18_av_cmd(struct cx18 *cx, unsigned int cmd, void *arg); /* ----------------------------------------------------------------------- */ diff --git a/drivers/media/video/cx18/cx18-cards.c b/drivers/media/video/cx18/cx18-cards.c index baccd079243..c26e0ef5b07 100644 --- a/drivers/media/video/cx18/cx18-cards.c +++ b/drivers/media/video/cx18/cx18-cards.c @@ -23,6 +23,7 @@ #include "cx18-driver.h" #include "cx18-cards.h" +#include "cx18-av-core.h" #include "cx18-i2c.h" #include <media/cs5345.h> @@ -54,22 +55,22 @@ static const struct cx18_card cx18_card_hvr1600_esmt = { .hw_all = CX18_HW_TVEEPROM | CX18_HW_TUNER | CX18_HW_CS5345 | CX18_HW_DVB, .video_inputs = { - { CX18_CARD_INPUT_VID_TUNER, 0, CX23418_COMPOSITE7 }, - { CX18_CARD_INPUT_SVIDEO1, 1, CX23418_SVIDEO1 }, - { CX18_CARD_INPUT_COMPOSITE1, 1, CX23418_COMPOSITE3 }, - { CX18_CARD_INPUT_SVIDEO2, 2, CX23418_SVIDEO2 }, - { CX18_CARD_INPUT_COMPOSITE2, 2, CX23418_COMPOSITE4 }, + { CX18_CARD_INPUT_VID_TUNER, 0, CX18_AV_COMPOSITE7 }, + { CX18_CARD_INPUT_SVIDEO1, 1, CX18_AV_SVIDEO1 }, + { CX18_CARD_INPUT_COMPOSITE1, 1, CX18_AV_COMPOSITE3 }, + { CX18_CARD_INPUT_SVIDEO2, 2, CX18_AV_SVIDEO2 }, + { CX18_CARD_INPUT_COMPOSITE2, 2, CX18_AV_COMPOSITE4 }, }, .audio_inputs = { { CX18_CARD_INPUT_AUD_TUNER, - CX23418_AUDIO8, CS5345_IN_1 | CS5345_MCLK_1_5 }, + CX18_AV_AUDIO8, CS5345_IN_1 | CS5345_MCLK_1_5 }, { CX18_CARD_INPUT_LINE_IN1, - CX23418_AUDIO_SERIAL, CS5345_IN_2 }, + CX18_AV_AUDIO_SERIAL, CS5345_IN_2 }, { CX18_CARD_INPUT_LINE_IN2, - CX23418_AUDIO_SERIAL, CS5345_IN_2 }, + CX18_AV_AUDIO_SERIAL, CS5345_IN_3 }, }, .radio_input = { CX18_CARD_INPUT_AUD_TUNER, - CX23418_AUDIO_SERIAL, 0 }, + CX18_AV_AUDIO_SERIAL, CS5345_IN_4 }, .ddr = { /* ESMT M13S128324A-5B memory */ .chip_config = 0x003, @@ -81,6 +82,11 @@ static const struct cx18_card cx18_card_hvr1600_esmt = { }, .gpio_init.initial_value = 0x3001, .gpio_init.direction = 0x3001, + .gpio_i2c_slave_reset = { + .active_lo_mask = 0x3001, + .msecs_asserted = 10, + .msecs_recovery = 40, + }, .i2c = &cx18_i2c_std, }; @@ -94,22 +100,22 @@ static const struct cx18_card cx18_card_hvr1600_samsung = { .hw_all = CX18_HW_TVEEPROM | CX18_HW_TUNER | CX18_HW_CS5345 | CX18_HW_DVB, .video_inputs = { - { CX18_CARD_INPUT_VID_TUNER, 0, CX23418_COMPOSITE7 }, - { CX18_CARD_INPUT_SVIDEO1, 1, CX23418_SVIDEO1 }, - { CX18_CARD_INPUT_COMPOSITE1, 1, CX23418_COMPOSITE3 }, - { CX18_CARD_INPUT_SVIDEO2, 2, CX23418_SVIDEO2 }, - { CX18_CARD_INPUT_COMPOSITE2, 2, CX23418_COMPOSITE4 }, + { CX18_CARD_INPUT_VID_TUNER, 0, CX18_AV_COMPOSITE7 }, + { CX18_CARD_INPUT_SVIDEO1, 1, CX18_AV_SVIDEO1 }, + { CX18_CARD_INPUT_COMPOSITE1, 1, CX18_AV_COMPOSITE3 }, + { CX18_CARD_INPUT_SVIDEO2, 2, CX18_AV_SVIDEO2 }, + { CX18_CARD_INPUT_COMPOSITE2, 2, CX18_AV_COMPOSITE4 }, }, .audio_inputs = { { CX18_CARD_INPUT_AUD_TUNER, - CX23418_AUDIO8, CS5345_IN_1 | CS5345_MCLK_1_5 }, + CX18_AV_AUDIO8, CS5345_IN_1 | CS5345_MCLK_1_5 }, { CX18_CARD_INPUT_LINE_IN1, - CX23418_AUDIO_SERIAL, CS5345_IN_2 }, + CX18_AV_AUDIO_SERIAL, CS5345_IN_2 }, { CX18_CARD_INPUT_LINE_IN2, - CX23418_AUDIO_SERIAL, CS5345_IN_2 }, + CX18_AV_AUDIO_SERIAL, CS5345_IN_3 }, }, .radio_input = { CX18_CARD_INPUT_AUD_TUNER, - CX23418_AUDIO_SERIAL, 0 }, + CX18_AV_AUDIO_SERIAL, CS5345_IN_4 }, .ddr = { /* Samsung K4D263238G-VC33 memory */ .chip_config = 0x003, @@ -121,6 +127,11 @@ static const struct cx18_card cx18_card_hvr1600_samsung = { }, .gpio_init.initial_value = 0x3001, .gpio_init.direction = 0x3001, + .gpio_i2c_slave_reset = { + .active_lo_mask = 0x3001, + .msecs_asserted = 10, + .msecs_recovery = 40, + }, .i2c = &cx18_i2c_std, }; @@ -141,19 +152,19 @@ static const struct cx18_card cx18_card_h900 = { .hw_audio_ctrl = CX18_HW_CX23418, .hw_all = CX18_HW_TUNER, .video_inputs = { - { CX18_CARD_INPUT_VID_TUNER, 0, CX23418_COMPOSITE2 }, + { CX18_CARD_INPUT_VID_TUNER, 0, CX18_AV_COMPOSITE2 }, { CX18_CARD_INPUT_SVIDEO1, 1, - CX23418_SVIDEO_LUMA3 | CX23418_SVIDEO_CHROMA4 }, - { CX18_CARD_INPUT_COMPOSITE1, 1, CX23418_COMPOSITE1 }, + CX18_AV_SVIDEO_LUMA3 | CX18_AV_SVIDEO_CHROMA4 }, + { CX18_CARD_INPUT_COMPOSITE1, 1, CX18_AV_COMPOSITE1 }, }, .audio_inputs = { { CX18_CARD_INPUT_AUD_TUNER, - CX23418_AUDIO8, 0 }, + CX18_AV_AUDIO8, 0 }, { CX18_CARD_INPUT_LINE_IN1, - CX23418_AUDIO_SERIAL, 0 }, + CX18_AV_AUDIO_SERIAL, 0 }, }, .radio_input = { CX18_CARD_INPUT_AUD_TUNER, - CX23418_AUDIO_SERIAL, 0 }, + CX18_AV_AUDIO_SERIAL, 0 }, .tuners = { { .std = V4L2_STD_ALL, .tuner = TUNER_XC2028 }, }, @@ -183,23 +194,26 @@ static const struct cx18_card_pci_info cx18_pci_mpc718[] = { static const struct cx18_card cx18_card_mpc718 = { .type = CX18_CARD_YUAN_MPC718, .name = "Yuan MPC718", - .comment = "Not yet supported!\n", - .v4l2_capabilities = 0, + .comment = "Some Composite and S-Video inputs are currently working.\n", + .v4l2_capabilities = CX18_CAP_ENCODER, .hw_audio_ctrl = CX18_HW_CX23418, .hw_all = CX18_HW_TUNER, .video_inputs = { - { CX18_CARD_INPUT_VID_TUNER, 0, CX23418_COMPOSITE7 }, - { CX18_CARD_INPUT_SVIDEO1, 1, CX23418_SVIDEO1 }, - { CX18_CARD_INPUT_COMPOSITE1, 1, CX23418_COMPOSITE3 }, + { CX18_CARD_INPUT_VID_TUNER, 0, CX18_AV_COMPOSITE2 }, + { CX18_CARD_INPUT_SVIDEO1, 1, + CX18_AV_SVIDEO_LUMA3 | CX18_AV_SVIDEO_CHROMA4 }, + { CX18_CARD_INPUT_COMPOSITE1, 1, CX18_AV_COMPOSITE1 }, + { CX18_CARD_INPUT_SVIDEO2, 2, + CX18_AV_SVIDEO_LUMA7 | CX18_AV_SVIDEO_CHROMA8 }, + { CX18_CARD_INPUT_COMPOSITE2, 2, CX18_AV_COMPOSITE6 }, + { CX18_CARD_INPUT_COMPOSITE3, 2, CX18_AV_COMPOSITE3 }, }, .audio_inputs = { - { CX18_CARD_INPUT_AUD_TUNER, - CX23418_AUDIO8, 0 }, - { CX18_CARD_INPUT_LINE_IN1, - CX23418_AUDIO_SERIAL, 0 }, + { CX18_CARD_INPUT_AUD_TUNER, CX18_AV_AUDIO5, 0 }, + { CX18_CARD_INPUT_LINE_IN1, CX18_AV_AUDIO_SERIAL, 0 }, + { CX18_CARD_INPUT_LINE_IN2, CX18_AV_AUDIO_SERIAL, 0 }, }, - .radio_input = { CX18_CARD_INPUT_AUD_TUNER, - CX23418_AUDIO_SERIAL, 0 }, + .radio_input = { CX18_CARD_INPUT_AUD_TUNER, CX18_AV_AUDIO_SERIAL, 0 }, .tuners = { /* XC3028 tuner */ { .std = V4L2_STD_ALL, .tuner = TUNER_XC2028 }, diff --git a/drivers/media/video/cx18/cx18-cards.h b/drivers/media/video/cx18/cx18-cards.h index bccb67f0db1..dc2dd945d4c 100644 --- a/drivers/media/video/cx18/cx18-cards.h +++ b/drivers/media/video/cx18/cx18-cards.h @@ -36,36 +36,6 @@ #define CX18_CARD_INPUT_COMPOSITE2 5 #define CX18_CARD_INPUT_COMPOSITE3 6 -enum cx34180_video_input { - /* Composite video inputs In1-In8 */ - CX23418_COMPOSITE1 = 1, - CX23418_COMPOSITE2, - CX23418_COMPOSITE3, - CX23418_COMPOSITE4, - CX23418_COMPOSITE5, - CX23418_COMPOSITE6, - CX23418_COMPOSITE7, - CX23418_COMPOSITE8, - - /* S-Video inputs consist of one luma input (In1-In4) ORed with one - chroma input (In5-In8) */ - CX23418_SVIDEO_LUMA1 = 0x10, - CX23418_SVIDEO_LUMA2 = 0x20, - CX23418_SVIDEO_LUMA3 = 0x30, - CX23418_SVIDEO_LUMA4 = 0x40, - CX23418_SVIDEO_CHROMA4 = 0x400, - CX23418_SVIDEO_CHROMA5 = 0x500, - CX23418_SVIDEO_CHROMA6 = 0x600, - CX23418_SVIDEO_CHROMA7 = 0x700, - CX23418_SVIDEO_CHROMA8 = 0x800, - - /* S-Video aliases for common luma/chroma combinations */ - CX23418_SVIDEO1 = 0x510, - CX23418_SVIDEO2 = 0x620, - CX23418_SVIDEO3 = 0x730, - CX23418_SVIDEO4 = 0x840, -}; - /* audio inputs */ #define CX18_CARD_INPUT_AUD_TUNER 1 #define CX18_CARD_INPUT_LINE_IN1 2 @@ -75,16 +45,6 @@ enum cx34180_video_input { #define CX18_CARD_MAX_AUDIO_INPUTS 3 #define CX18_CARD_MAX_TUNERS 2 -enum cx23418_audio_input { - /* Audio inputs: serial or In4-In8 */ - CX23418_AUDIO_SERIAL, - CX23418_AUDIO4 = 4, - CX23418_AUDIO5, - CX23418_AUDIO6, - CX23418_AUDIO7, - CX23418_AUDIO8, -}; - /* V4L2 capability aliases */ #define CX18_CAP_ENCODER (V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER | \ V4L2_CAP_AUDIO | V4L2_CAP_READWRITE) @@ -118,6 +78,13 @@ struct cx18_gpio_init { /* set initial GPIO DIR and OUT values */ u32 initial_value; }; +struct cx18_gpio_i2c_slave_reset { + u32 active_lo_mask; /* GPIO outputs that reset i2c chips when low */ + u32 active_hi_mask; /* GPIO outputs that reset i2c chips when high */ + int msecs_asserted; /* time period reset must remain asserted */ + int msecs_recovery; /* time after deassert for chips to be ready */ +}; + struct cx18_card_tuner { v4l2_std_id std; /* standard for which the tuner is suitable */ int tuner; /* tuner ID (from tuner.h) */ @@ -154,7 +121,8 @@ struct cx18_card { /* GPIO card-specific settings */ u8 xceive_pin; /* XCeive tuner GPIO reset pin */ - struct cx18_gpio_init gpio_init; + struct cx18_gpio_init gpio_init; + struct cx18_gpio_i2c_slave_reset gpio_i2c_slave_reset; struct cx18_card_tuner tuners[CX18_CARD_MAX_TUNERS]; struct cx18_card_tuner_i2c *i2c; diff --git a/drivers/media/video/cx18/cx18-dvb.c b/drivers/media/video/cx18/cx18-dvb.c index c9744173f96..cae38985b13 100644 --- a/drivers/media/video/cx18/cx18-dvb.c +++ b/drivers/media/video/cx18/cx18-dvb.c @@ -69,11 +69,21 @@ static int cx18_dvb_start_feed(struct dvb_demux_feed *feed) struct dvb_demux *demux = feed->demux; struct cx18_stream *stream = (struct cx18_stream *) demux->priv; struct cx18 *cx = stream->cx; - int ret = -EINVAL; + int ret; u32 v; CX18_DEBUG_INFO("Start feed: pid = 0x%x index = %d\n", feed->pid, feed->index); + + mutex_lock(&cx->serialize_lock); + ret = cx18_init_on_first_open(cx); + mutex_unlock(&cx->serialize_lock); + if (ret) { + CX18_ERR("Failed to initialize firmware starting DVB feed\n"); + return ret; + } + ret = -EINVAL; + switch (cx->card->type) { case CX18_CARD_HVR_1600_ESMT: case CX18_CARD_HVR_1600_SAMSUNG: @@ -101,6 +111,11 @@ static int cx18_dvb_start_feed(struct dvb_demux_feed *feed) if (stream->dvb.feeding++ == 0) { CX18_DEBUG_INFO("Starting Transport DMA\n"); ret = cx18_start_v4l2_encode_stream(stream); + if (ret < 0) { + CX18_DEBUG_INFO( + "Failed to start Transport DMA\n"); + stream->dvb.feeding--; + } } else ret = 0; mutex_unlock(&stream->dvb.feedlock); diff --git a/drivers/media/video/cx18/cx18-gpio.c b/drivers/media/video/cx18/cx18-gpio.c index ceb63653c92..b302833f6f9 100644 --- a/drivers/media/video/cx18/cx18-gpio.c +++ b/drivers/media/video/cx18/cx18-gpio.c @@ -53,10 +53,34 @@ static void gpio_write(struct cx18 *cx) write_reg(((dir & 0xffff) << 16) | (val & 0xffff), CX18_REG_GPIO_OUT1); write_reg(dir & 0xffff0000, CX18_REG_GPIO_DIR2); - write_reg((dir & 0xffff0000) | ((val & 0xffff0000) >> 16), + write_reg_sync((dir & 0xffff0000) | ((val & 0xffff0000) >> 16), CX18_REG_GPIO_OUT2); } +void cx18_reset_i2c_slaves_gpio(struct cx18 *cx) +{ + const struct cx18_gpio_i2c_slave_reset *p; + + p = &cx->card->gpio_i2c_slave_reset; + + if ((p->active_lo_mask | p->active_hi_mask) == 0) + return; + + /* Assuming that the masks are a subset of the bits in gpio_dir */ + + /* Assert */ + cx->gpio_val = + (cx->gpio_val | p->active_hi_mask) & ~(p->active_lo_mask); + gpio_write(cx); + schedule_timeout_uninterruptible(msecs_to_jiffies(p->msecs_asserted)); + + /* Deassert */ + cx->gpio_val = + (cx->gpio_val | p->active_lo_mask) & ~(p->active_hi_mask); + gpio_write(cx); + schedule_timeout_uninterruptible(msecs_to_jiffies(p->msecs_recovery)); +} + void cx18_gpio_init(struct cx18 *cx) { cx->gpio_dir = cx->card->gpio_init.direction; diff --git a/drivers/media/video/cx18/cx18-gpio.h b/drivers/media/video/cx18/cx18-gpio.h index 41bac8856b5..525c328f748 100644 --- a/drivers/media/video/cx18/cx18-gpio.h +++ b/drivers/media/video/cx18/cx18-gpio.h @@ -21,4 +21,5 @@ */ void cx18_gpio_init(struct cx18 *cx); +void cx18_reset_i2c_slaves_gpio(struct cx18 *cx); int cx18_reset_tuner_gpio(void *dev, int cmd, int value); diff --git a/drivers/media/video/cx18/cx18-i2c.c b/drivers/media/video/cx18/cx18-i2c.c index 1d6c51a7531..680bc4e35b7 100644 --- a/drivers/media/video/cx18/cx18-i2c.c +++ b/drivers/media/video/cx18/cx18-i2c.c @@ -405,6 +405,8 @@ int init_cx18_i2c(struct cx18 *cx) cx18_setscl(&cx->i2c_algo_cb_data[1], 1); cx18_setsda(&cx->i2c_algo_cb_data[1], 1); + cx18_reset_i2c_slaves_gpio(cx); + return i2c_bit_add_bus(&cx->i2c_adap[0]) || i2c_bit_add_bus(&cx->i2c_adap[1]); } diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c index 607efdcd22f..1da6f134888 100644 --- a/drivers/media/video/cx25840/cx25840-core.c +++ b/drivers/media/video/cx25840/cx25840-core.c @@ -433,7 +433,7 @@ static int set_input(struct i2c_client *client, enum cx25840_video_input vid_inp int chroma = vid_input & 0xf00; if ((vid_input & ~0xff0) || - luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA4 || + luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA8 || chroma < CX25840_SVIDEO_CHROMA4 || chroma > CX25840_SVIDEO_CHROMA8) { v4l_err(client, "0x%04x is not a valid video input!\n", vid_input); diff --git a/drivers/media/video/cx88/cx88-alsa.c b/drivers/media/video/cx88/cx88-alsa.c index e976fc6bef7..80c8883e54b 100644 --- a/drivers/media/video/cx88/cx88-alsa.c +++ b/drivers/media/video/cx88/cx88-alsa.c @@ -332,6 +332,12 @@ static int snd_cx88_pcm_open(struct snd_pcm_substream *substream) struct snd_pcm_runtime *runtime = substream->runtime; int err; + if (!chip) { + printk(KERN_ERR "BUG: cx88 can't find device struct." + " Can't proceed with open\n"); + return -ENODEV; + } + err = snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS); if (err < 0) goto _error; diff --git a/drivers/media/video/em28xx/em28xx-audio.c b/drivers/media/video/em28xx/em28xx-audio.c index 92b2a6db4fd..3c006103c1e 100644 --- a/drivers/media/video/em28xx/em28xx-audio.c +++ b/drivers/media/video/em28xx/em28xx-audio.c @@ -268,6 +268,12 @@ static int snd_em28xx_capture_open(struct snd_pcm_substream *substream) dprintk("opening device and trying to acquire exclusive lock\n"); + if (!dev) { + printk(KERN_ERR "BUG: em28xx can't find device struct." + " Can't proceed with open\n"); + return -ENODEV; + } + /* Sets volume, mute, etc */ dev->mute = 0; @@ -415,6 +421,12 @@ static int em28xx_audio_init(struct em28xx *dev) static int devnr; int ret, err; + if (dev->has_audio_class) { + /* This device does not support the extension (in this case + the device is expecting the snd-usb-audio module */ + return 0; + } + printk(KERN_INFO "em28xx-audio.c: probing for em28x1 " "non standard usbaudio\n"); printk(KERN_INFO "em28xx-audio.c: Copyright (C) 2006 Markus " @@ -458,6 +470,12 @@ static int em28xx_audio_fini(struct em28xx *dev) if (dev == NULL) return 0; + if (dev->has_audio_class) { + /* This device does not support the extension (in this case + the device is expecting the snd-usb-audio module */ + return 0; + } + if (dev->adev) { snd_card_free(dev->adev->sndcard); kfree(dev->adev); diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index 3e4f3c7e92e..8cbda43727c 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -157,6 +157,7 @@ struct em28xx_board em28xx_boards[] = { .tda9887_conf = TDA9887_PRESENT, .tuner_type = TUNER_XC2028, .mts_firmware = 1, + .has_dvb = 1, .decoder = EM28XX_TVP5150, .input = { { .type = EM28XX_VMUX_TELEVISION, @@ -524,6 +525,9 @@ void em28xx_pre_card_setup(struct em28xx *dev) rc = em28xx_read_reg(dev, EM28XX_R0A_CHIPID); if (rc > 0) { switch (rc) { + case CHIP_ID_EM2860: + em28xx_info("chip ID is em2860\n"); + break; case CHIP_ID_EM2883: em28xx_info("chip ID is em2882/em2883\n"); dev->wait_after_write = 0; diff --git a/drivers/media/video/em28xx/em28xx-dvb.c b/drivers/media/video/em28xx/em28xx-dvb.c index 8cf4983f003..0b2333ee07f 100644 --- a/drivers/media/video/em28xx/em28xx-dvb.c +++ b/drivers/media/video/em28xx/em28xx-dvb.c @@ -382,6 +382,11 @@ static int dvb_init(struct em28xx *dev) int result = 0; struct em28xx_dvb *dvb; + if (!dev->has_dvb) { + /* This device does not support the extension */ + return 0; + } + dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL); if (dvb == NULL) { @@ -444,6 +449,11 @@ out_free: static int dvb_fini(struct em28xx *dev) { + if (!dev->has_dvb) { + /* This device does not support the extension */ + return 0; + } + if (dev->dvb) { unregister_dvb(dev->dvb); dev->dvb = NULL; diff --git a/drivers/media/video/em28xx/em28xx-reg.h b/drivers/media/video/em28xx/em28xx-reg.h index 9058bed0795..fac1ab23f62 100644 --- a/drivers/media/video/em28xx/em28xx-reg.h +++ b/drivers/media/video/em28xx/em28xx-reg.h @@ -84,5 +84,6 @@ /* FIXME: Need to be populated with the other chip ID's */ enum em28xx_chip_id { + CHIP_ID_EM2860 = 34, CHIP_ID_EM2883 = 36, }; diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index fb163ecd921..285bc62bbe4 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -1848,32 +1848,28 @@ static DEFINE_MUTEX(em28xx_extension_devlist_lock); int em28xx_register_extension(struct em28xx_ops *ops) { - struct em28xx *h, *dev = NULL; - - list_for_each_entry(h, &em28xx_devlist, devlist) - dev = h; + struct em28xx *dev = NULL; mutex_lock(&em28xx_extension_devlist_lock); list_add_tail(&ops->next, &em28xx_extension_devlist); - if (dev) - ops->init(dev); - + list_for_each_entry(dev, &em28xx_devlist, devlist) { + if (dev) + ops->init(dev); + } printk(KERN_INFO "Em28xx: Initialized (%s) extension\n", ops->name); mutex_unlock(&em28xx_extension_devlist_lock); - return 0; } EXPORT_SYMBOL(em28xx_register_extension); void em28xx_unregister_extension(struct em28xx_ops *ops) { - struct em28xx *h, *dev = NULL; - - list_for_each_entry(h, &em28xx_devlist, devlist) - dev = h; + struct em28xx *dev = NULL; - if (dev) - ops->fini(dev); + list_for_each_entry(dev, &em28xx_devlist, devlist) { + if (dev) + ops->fini(dev); + } mutex_lock(&em28xx_extension_devlist_lock); printk(KERN_INFO "Em28xx: Removed (%s) extension\n", ops->name); diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c index 7cc8e9b19fb..5ec5bb9a94d 100644 --- a/drivers/media/video/pxa_camera.c +++ b/drivers/media/video/pxa_camera.c @@ -1019,12 +1019,12 @@ static int pxa_camera_probe(struct platform_device *pdev) struct pxa_camera_dev *pcdev; struct resource *res; void __iomem *base; - unsigned int irq; + int irq; int err = 0; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); irq = platform_get_irq(pdev, 0); - if (!res || !irq) { + if (!res || irq < 0) { err = -ENODEV; goto exit; } diff --git a/drivers/media/video/saa7134/saa7134-alsa.c b/drivers/media/video/saa7134/saa7134-alsa.c index ba3082422a0..f118de6e367 100644 --- a/drivers/media/video/saa7134/saa7134-alsa.c +++ b/drivers/media/video/saa7134/saa7134-alsa.c @@ -613,9 +613,15 @@ static int snd_card_saa7134_capture_open(struct snd_pcm_substream * substream) struct snd_pcm_runtime *runtime = substream->runtime; snd_card_saa7134_pcm_t *pcm; snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream); - struct saa7134_dev *dev = saa7134->dev; + struct saa7134_dev *dev; int amux, err; + if (!saa7134) { + printk(KERN_ERR "BUG: saa7134 can't find device struct." + " Can't proceed with open\n"); + return -ENODEV; + } + dev = saa7134->dev; mutex_lock(&dev->dmasound.lock); dev->dmasound.read_count = 0; diff --git a/drivers/media/video/saa7134/saa7134-cards.c b/drivers/media/video/saa7134/saa7134-cards.c index b111903aa32..2618cfa592e 100644 --- a/drivers/media/video/saa7134/saa7134-cards.c +++ b/drivers/media/video/saa7134/saa7134-cards.c @@ -4114,11 +4114,7 @@ struct saa7134_board saa7134_boards[] = { .radio_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, - /* - TODO: .mpeg = SAA7134_MPEG_DVB, - */ - .inputs = {{ .name = name_tv, .vmux = 1, @@ -4157,7 +4153,7 @@ struct saa7134_board saa7134_boards[] = { } }, .radio = { .name = name_radio, - .amux = LINE1, + .amux = TV, }, }, [SAA7134_BOARD_AVERMEDIA_M115] = { @@ -4167,6 +4163,7 @@ struct saa7134_board saa7134_boards[] = { .radio_type = UNSET, .tuner_addr = ADDR_UNSET, .radio_addr = ADDR_UNSET, + .mpeg = SAA7134_MPEG_DVB, .inputs = {{ .name = name_tv, .vmux = 1, @@ -5351,22 +5348,21 @@ static int saa7134_xc2028_callback(struct saa7134_dev *dev, { switch (command) { case XC2028_TUNER_RESET: - saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x06e20000, 0x06e20000); - saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x06a20000, 0x06a20000); - mdelay(250); - saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x06e20000, 0); - saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x06a20000, 0); - mdelay(250); - saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x06e20000, 0x06e20000); - saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x06a20000, 0x06a20000); - mdelay(250); - saa_andorl(SAA7133_ANALOG_IO_SELECT >> 2, 0x02, 0x02); - saa_andorl(SAA7134_ANALOG_IN_CTRL1 >> 2, 0x81, 0x81); - saa_andorl(SAA7134_AUDIO_CLOCK0 >> 2, 0x03187de7, 0x03187de7); - saa_andorl(SAA7134_AUDIO_PLL_CTRL >> 2, 0x03, 0x03); - saa_andorl(SAA7134_AUDIO_CLOCKS_PER_FIELD0 >> 2, - 0x0001e000, 0x0001e000); - return 0; + saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x00008000, 0x00000000); + saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x00008000, 0x00008000); + switch (dev->board) { + case SAA7134_BOARD_AVERMEDIA_CARDBUS_506: + saa7134_set_gpio(dev, 23, 0); + msleep(10); + saa7134_set_gpio(dev, 23, 1); + break; + case SAA7134_BOARD_AVERMEDIA_A16D: + saa7134_set_gpio(dev, 21, 0); + msleep(10); + saa7134_set_gpio(dev, 21, 1); + break; + } + return 0; } return -EINVAL; } @@ -5553,9 +5549,7 @@ int saa7134_board_init1(struct saa7134_dev *dev) saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x08000000, 0x00000000); break; case SAA7134_BOARD_AVERMEDIA_CARDBUS: - case SAA7134_BOARD_AVERMEDIA_CARDBUS_506: case SAA7134_BOARD_AVERMEDIA_M115: - case SAA7134_BOARD_AVERMEDIA_A16D: /* power-down tuner chip */ saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0xffffffff, 0); saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0xffffffff, 0); @@ -5565,6 +5559,18 @@ int saa7134_board_init1(struct saa7134_dev *dev) saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0xffffffff, 0xffffffff); msleep(10); break; + case SAA7134_BOARD_AVERMEDIA_CARDBUS_506: + saa7134_set_gpio(dev, 23, 0); + msleep(10); + saa7134_set_gpio(dev, 23, 1); + break; + case SAA7134_BOARD_AVERMEDIA_A16D: + saa7134_set_gpio(dev, 21, 0); + msleep(10); + saa7134_set_gpio(dev, 21, 1); + msleep(1); + dev->has_remote = SAA7134_REMOTE_GPIO; + break; case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM: /* power-down tuner chip */ saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x000A8004, 0x000A8004); @@ -5615,7 +5621,8 @@ int saa7134_board_init1(struct saa7134_dev *dev) saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x80040100, 0x80040100); saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x80040100, 0x00040100); printk("%s: %s: hybrid analog/dvb card\n" - "%s: Sorry, only the analog inputs are supported for now.\n", + "%s: Sorry, only analog s-video and composite input " + "are supported for now.\n", dev->name, card(dev).name, dev->name); break; } @@ -5675,6 +5682,7 @@ static void saa7134_tuner_setup(struct saa7134_dev *dev) switch (dev->board) { case SAA7134_BOARD_AVERMEDIA_A16D: + case SAA7134_BOARD_AVERMEDIA_CARDBUS_506: ctl.demod = XC3028_FE_ZARLINK456; break; default: diff --git a/drivers/media/video/saa7134/saa7134-dvb.c b/drivers/media/video/saa7134/saa7134-dvb.c index 469f93aac00..341b101b035 100644 --- a/drivers/media/video/saa7134/saa7134-dvb.c +++ b/drivers/media/video/saa7134/saa7134-dvb.c @@ -153,12 +153,12 @@ static int mt352_aver777_init(struct dvb_frontend* fe) return 0; } -static int mt352_aver_a16d_init(struct dvb_frontend *fe) +static int mt352_avermedia_xc3028_init(struct dvb_frontend *fe) { - static u8 clock_config [] = { CLOCK_CTL, 0x38, 0x2d }; - static u8 reset [] = { RESET, 0x80 }; - static u8 adc_ctl_1_cfg [] = { ADC_CTL_1, 0x40 }; - static u8 agc_cfg [] = { AGC_TARGET, 0x28, 0xa0 }; + static u8 clock_config [] = { CLOCK_CTL, 0x38, 0x2d }; + static u8 reset [] = { RESET, 0x80 }; + static u8 adc_ctl_1_cfg [] = { ADC_CTL_1, 0x40 }; + static u8 agc_cfg [] = { AGC_TARGET, 0xe }; static u8 capt_range_cfg[] = { CAPT_RANGE, 0x33 }; mt352_write(fe, clock_config, sizeof(clock_config)); @@ -167,12 +167,9 @@ static int mt352_aver_a16d_init(struct dvb_frontend *fe) mt352_write(fe, adc_ctl_1_cfg, sizeof(adc_ctl_1_cfg)); mt352_write(fe, agc_cfg, sizeof(agc_cfg)); mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg)); - return 0; } - - static int mt352_pinnacle_tuner_set_params(struct dvb_frontend* fe, struct dvb_frontend_parameters* params) { @@ -215,14 +212,10 @@ static struct mt352_config avermedia_777 = { .demod_init = mt352_aver777_init, }; -static struct mt352_config avermedia_16d = { - .demod_address = 0xf, - .demod_init = mt352_aver_a16d_init, -}; - -static struct mt352_config avermedia_e506r_mt352_dev = { +static struct mt352_config avermedia_xc3028_mt352_dev = { .demod_address = (0x1e >> 1), .no_tuner = 1, + .demod_init = mt352_avermedia_xc3028_init, }; /* ================================================================== @@ -975,9 +968,10 @@ static int dvb_init(struct saa7134_dev *dev) } break; case SAA7134_BOARD_AVERMEDIA_A16D: - dprintk("avertv A16D dvb setup\n"); - dev->dvb.frontend = dvb_attach(mt352_attach, &avermedia_16d, - &dev->i2c_adap); + dprintk("AverMedia A16D dvb setup\n"); + dev->dvb.frontend = dvb_attach(mt352_attach, + &avermedia_xc3028_mt352_dev, + &dev->i2c_adap); attach_xc3028 = 1; break; case SAA7134_BOARD_MD7134: @@ -1091,7 +1085,8 @@ static int dvb_init(struct saa7134_dev *dev) ads_tech_duo_config.tuner_address); goto dettach_frontend; } - } + } else + wprintk("failed to attach tda10046\n"); break; case SAA7134_BOARD_TEVION_DVBT_220RF: if (configure_tda827x_fe(dev, &tevion_dvbt220rf_config, @@ -1260,11 +1255,14 @@ static int dvb_init(struct saa7134_dev *dev) goto dettach_frontend; break; case SAA7134_BOARD_AVERMEDIA_CARDBUS_506: + dprintk("AverMedia E506R dvb setup\n"); + saa7134_set_gpio(dev, 25, 0); + msleep(10); + saa7134_set_gpio(dev, 25, 1); dev->dvb.frontend = dvb_attach(mt352_attach, - &avermedia_e506r_mt352_dev, - &dev->i2c_adap); + &avermedia_xc3028_mt352_dev, + &dev->i2c_adap); attach_xc3028 = 1; - break; case SAA7134_BOARD_MD7134_BRIDGE_2: dev->dvb.frontend = dvb_attach(tda10086_attach, &sd1878_4m, &dev->i2c_adap); @@ -1338,7 +1336,8 @@ static int dvb_init(struct saa7134_dev *dev) return ret; dettach_frontend: - dvb_frontend_detach(dev->dvb.frontend); + if (dev->dvb.frontend) + dvb_frontend_detach(dev->dvb.frontend); dev->dvb.frontend = NULL; return -1; diff --git a/drivers/media/video/saa7134/saa7134-empress.c b/drivers/media/video/saa7134/saa7134-empress.c index 81431ee4184..3ae71a34082 100644 --- a/drivers/media/video/saa7134/saa7134-empress.c +++ b/drivers/media/video/saa7134/saa7134-empress.c @@ -110,9 +110,10 @@ static int ts_release(struct inode *inode, struct file *file) { struct saa7134_dev *dev = file->private_data; + mutex_lock(&dev->empress_tsq.vb_lock); + videobuf_stop(&dev->empress_tsq); videobuf_mmap_free(&dev->empress_tsq); - dev->empress_users--; /* stop the encoder */ ts_reset_encoder(dev); @@ -121,6 +122,10 @@ static int ts_release(struct inode *inode, struct file *file) saa_writeb(SAA7134_AUDIO_MUTE_CTRL, saa_readb(SAA7134_AUDIO_MUTE_CTRL) | (1 << 6)); + dev->empress_users--; + + mutex_unlock(&dev->empress_tsq.vb_lock); + return 0; } @@ -218,8 +223,7 @@ static int empress_enum_fmt_cap(struct file *file, void *priv, static int empress_g_fmt_cap(struct file *file, void *priv, struct v4l2_format *f) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; saa7134_i2c_call_clients(dev, VIDIOC_G_FMT, f); @@ -232,8 +236,7 @@ static int empress_g_fmt_cap(struct file *file, void *priv, static int empress_s_fmt_cap(struct file *file, void *priv, struct v4l2_format *f) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; saa7134_i2c_call_clients(dev, VIDIOC_S_FMT, f); @@ -247,8 +250,7 @@ static int empress_s_fmt_cap(struct file *file, void *priv, static int empress_reqbufs(struct file *file, void *priv, struct v4l2_requestbuffers *p) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; return videobuf_reqbufs(&dev->empress_tsq, p); } @@ -256,24 +258,21 @@ static int empress_reqbufs(struct file *file, void *priv, static int empress_querybuf(struct file *file, void *priv, struct v4l2_buffer *b) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; return videobuf_querybuf(&dev->empress_tsq, b); } static int empress_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; return videobuf_qbuf(&dev->empress_tsq, b); } static int empress_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; return videobuf_dqbuf(&dev->empress_tsq, b, file->f_flags & O_NONBLOCK); @@ -282,8 +281,7 @@ static int empress_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) static int empress_streamon(struct file *file, void *priv, enum v4l2_buf_type type) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; return videobuf_streamon(&dev->empress_tsq); } @@ -291,8 +289,7 @@ static int empress_streamon(struct file *file, void *priv, static int empress_streamoff(struct file *file, void *priv, enum v4l2_buf_type type) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; return videobuf_streamoff(&dev->empress_tsq); } @@ -300,8 +297,7 @@ static int empress_streamoff(struct file *file, void *priv, static int empress_s_ext_ctrls(struct file *file, void *priv, struct v4l2_ext_controls *ctrls) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; /* count == 0 is abused in saa6752hs.c, so that special case is handled here explicitly. */ @@ -320,8 +316,7 @@ static int empress_s_ext_ctrls(struct file *file, void *priv, static int empress_g_ext_ctrls(struct file *file, void *priv, struct v4l2_ext_controls *ctrls) { - struct saa7134_fh *fh = priv; - struct saa7134_dev *dev = fh->dev; + struct saa7134_dev *dev = file->private_data; if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG) return -EINVAL; diff --git a/drivers/media/video/saa7134/saa7134-input.c b/drivers/media/video/saa7134/saa7134-input.c index 919632b10aa..76e6501d238 100644 --- a/drivers/media/video/saa7134/saa7134-input.c +++ b/drivers/media/video/saa7134/saa7134-input.c @@ -323,6 +323,15 @@ int saa7134_input_init1(struct saa7134_dev *dev) saa_setb(SAA7134_GPIO_GPMODE1, 0x1); saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1); break; + case SAA7134_BOARD_AVERMEDIA_A16D: + ir_codes = ir_codes_avermedia_a16d; + mask_keycode = 0x02F200; + mask_keydown = 0x000400; + polling = 50; /* ms */ + /* Without this we won't receive key up events */ + saa_setb(SAA7134_GPIO_GPMODE1, 0x1); + saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1); + break; case SAA7134_BOARD_KWORLD_TERMINATOR: ir_codes = ir_codes_pixelview; mask_keycode = 0x00001f; diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c index a1b92446c8b..d015bfe0095 100644 --- a/drivers/media/video/soc_camera.c +++ b/drivers/media/video/soc_camera.c @@ -763,15 +763,6 @@ static struct device_driver ic_drv = { .owner = THIS_MODULE, }; -/* - * Image capture host - this is a host device, not a bus device, so, - * no bus reference, no probing. - */ -static struct class soc_camera_host_class = { - .owner = THIS_MODULE, - .name = "camera_host", -}; - static void dummy_release(struct device *dev) { } @@ -801,7 +792,6 @@ int soc_camera_host_register(struct soc_camera_host *ici) /* Number might be equal to the platform device ID */ sprintf(ici->dev.bus_id, "camera_host%d", ici->nr); - ici->dev.class = &soc_camera_host_class; mutex_lock(&list_lock); list_for_each_entry(ix, &hosts, list) { @@ -1003,14 +993,9 @@ static int __init soc_camera_init(void) ret = driver_register(&ic_drv); if (ret) goto edrvr; - ret = class_register(&soc_camera_host_class); - if (ret) - goto eclr; return 0; -eclr: - driver_unregister(&ic_drv); edrvr: bus_unregister(&soc_camera_bus_type); return ret; @@ -1018,7 +1003,6 @@ edrvr: static void __exit soc_camera_exit(void) { - class_unregister(&soc_camera_host_class); driver_unregister(&ic_drv); bus_unregister(&soc_camera_bus_type); } diff --git a/drivers/media/video/uvc/Makefile b/drivers/media/video/uvc/Makefile new file mode 100644 index 00000000000..968c1994eda --- /dev/null +++ b/drivers/media/video/uvc/Makefile @@ -0,0 +1,3 @@ +uvcvideo-objs := uvc_driver.o uvc_queue.o uvc_v4l2.o uvc_video.o uvc_ctrl.o \ + uvc_status.o uvc_isight.o +obj-$(CONFIG_USB_VIDEO_CLASS) += uvcvideo.o diff --git a/drivers/media/video/uvc/uvc_ctrl.c b/drivers/media/video/uvc/uvc_ctrl.c new file mode 100644 index 00000000000..f0ee46d1554 --- /dev/null +++ b/drivers/media/video/uvc/uvc_ctrl.c @@ -0,0 +1,1256 @@ +/* + * uvc_ctrl.c -- USB Video Class driver - Controls + * + * Copyright (C) 2005-2008 + * Laurent Pinchart (laurent.pinchart@skynet.be) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/version.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/uaccess.h> +#include <linux/usb.h> +#include <linux/videodev2.h> +#include <linux/vmalloc.h> +#include <linux/wait.h> +#include <asm/atomic.h> + +#include "uvcvideo.h" + +#define UVC_CTRL_NDATA 2 +#define UVC_CTRL_DATA_CURRENT 0 +#define UVC_CTRL_DATA_BACKUP 1 + +/* ------------------------------------------------------------------------ + * Control, formats, ... + */ + +static struct uvc_control_info uvc_ctrls[] = { + { + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_BRIGHTNESS_CONTROL, + .index = 0, + .size = 2, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE + | UVC_CONTROL_RESTORE, + }, + { + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_CONTRAST_CONTROL, + .index = 1, + .size = 2, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE + | UVC_CONTROL_RESTORE, + }, + { + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_HUE_CONTROL, + .index = 2, + .size = 2, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE + | UVC_CONTROL_RESTORE | UVC_CONTROL_AUTO_UPDATE, + }, + { + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_SATURATION_CONTROL, + .index = 3, + .size = 2, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE + | UVC_CONTROL_RESTORE, + }, + { + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_SHARPNESS_CONTROL, + .index = 4, + .size = 2, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE + | UVC_CONTROL_RESTORE, + }, + { + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_GAMMA_CONTROL, + .index = 5, + .size = 2, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE + | UVC_CONTROL_RESTORE, + }, + { + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_BACKLIGHT_COMPENSATION_CONTROL, + .index = 8, + .size = 2, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE + | UVC_CONTROL_RESTORE, + }, + { + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_GAIN_CONTROL, + .index = 9, + .size = 2, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE + | UVC_CONTROL_RESTORE, + }, + { + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_POWER_LINE_FREQUENCY_CONTROL, + .index = 10, + .size = 1, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE + | UVC_CONTROL_RESTORE, + }, + { + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_HUE_AUTO_CONTROL, + .index = 11, + .size = 1, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR + | UVC_CONTROL_GET_DEF | UVC_CONTROL_RESTORE, + }, + { + .entity = UVC_GUID_UVC_CAMERA, + .selector = CT_AE_MODE_CONTROL, + .index = 1, + .size = 1, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR + | UVC_CONTROL_GET_DEF | UVC_CONTROL_GET_RES + | UVC_CONTROL_RESTORE, + }, + { + .entity = UVC_GUID_UVC_CAMERA, + .selector = CT_AE_PRIORITY_CONTROL, + .index = 2, + .size = 1, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR + | UVC_CONTROL_RESTORE, + }, + { + .entity = UVC_GUID_UVC_CAMERA, + .selector = CT_EXPOSURE_TIME_ABSOLUTE_CONTROL, + .index = 3, + .size = 4, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE + | UVC_CONTROL_RESTORE, + }, + { + .entity = UVC_GUID_UVC_CAMERA, + .selector = CT_FOCUS_ABSOLUTE_CONTROL, + .index = 5, + .size = 2, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE + | UVC_CONTROL_RESTORE | UVC_CONTROL_AUTO_UPDATE, + }, + { + .entity = UVC_GUID_UVC_CAMERA, + .selector = CT_FOCUS_AUTO_CONTROL, + .index = 17, + .size = 1, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR + | UVC_CONTROL_GET_DEF | UVC_CONTROL_RESTORE, + }, + { + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL, + .index = 12, + .size = 1, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR + | UVC_CONTROL_GET_DEF | UVC_CONTROL_RESTORE, + }, + { + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_WHITE_BALANCE_TEMPERATURE_CONTROL, + .index = 6, + .size = 2, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE + | UVC_CONTROL_RESTORE | UVC_CONTROL_AUTO_UPDATE, + }, + { + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL, + .index = 13, + .size = 1, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR + | UVC_CONTROL_GET_DEF | UVC_CONTROL_RESTORE, + }, + { + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_WHITE_BALANCE_COMPONENT_CONTROL, + .index = 7, + .size = 4, + .flags = UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE + | UVC_CONTROL_RESTORE | UVC_CONTROL_AUTO_UPDATE, + }, +}; + +static struct uvc_menu_info power_line_frequency_controls[] = { + { 0, "Disabled" }, + { 1, "50 Hz" }, + { 2, "60 Hz" }, +}; + +static struct uvc_menu_info exposure_auto_controls[] = { + { 1, "Manual Mode" }, + { 2, "Auto Mode" }, + { 4, "Shutter Priority Mode" }, + { 8, "Aperture Priority Mode" }, +}; + +static struct uvc_control_mapping uvc_ctrl_mappings[] = { + { + .id = V4L2_CID_BRIGHTNESS, + .name = "Brightness", + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_BRIGHTNESS_CONTROL, + .size = 16, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_INTEGER, + .data_type = UVC_CTRL_DATA_TYPE_SIGNED, + }, + { + .id = V4L2_CID_CONTRAST, + .name = "Contrast", + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_CONTRAST_CONTROL, + .size = 16, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_INTEGER, + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED, + }, + { + .id = V4L2_CID_HUE, + .name = "Hue", + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_HUE_CONTROL, + .size = 16, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_INTEGER, + .data_type = UVC_CTRL_DATA_TYPE_SIGNED, + }, + { + .id = V4L2_CID_SATURATION, + .name = "Saturation", + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_SATURATION_CONTROL, + .size = 16, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_INTEGER, + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED, + }, + { + .id = V4L2_CID_SHARPNESS, + .name = "Sharpness", + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_SHARPNESS_CONTROL, + .size = 16, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_INTEGER, + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED, + }, + { + .id = V4L2_CID_GAMMA, + .name = "Gamma", + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_GAMMA_CONTROL, + .size = 16, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_INTEGER, + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED, + }, + { + .id = V4L2_CID_BACKLIGHT_COMPENSATION, + .name = "Backlight Compensation", + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_BACKLIGHT_COMPENSATION_CONTROL, + .size = 16, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_INTEGER, + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED, + }, + { + .id = V4L2_CID_GAIN, + .name = "Gain", + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_GAIN_CONTROL, + .size = 16, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_INTEGER, + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED, + }, + { + .id = V4L2_CID_POWER_LINE_FREQUENCY, + .name = "Power Line Frequency", + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_POWER_LINE_FREQUENCY_CONTROL, + .size = 2, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_MENU, + .data_type = UVC_CTRL_DATA_TYPE_ENUM, + .menu_info = power_line_frequency_controls, + .menu_count = ARRAY_SIZE(power_line_frequency_controls), + }, + { + .id = V4L2_CID_HUE_AUTO, + .name = "Hue, Auto", + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_HUE_AUTO_CONTROL, + .size = 1, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_BOOLEAN, + .data_type = UVC_CTRL_DATA_TYPE_BOOLEAN, + }, + { + .id = V4L2_CID_EXPOSURE_AUTO, + .name = "Exposure, Auto", + .entity = UVC_GUID_UVC_CAMERA, + .selector = CT_AE_MODE_CONTROL, + .size = 4, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_MENU, + .data_type = UVC_CTRL_DATA_TYPE_BITMASK, + .menu_info = exposure_auto_controls, + .menu_count = ARRAY_SIZE(exposure_auto_controls), + }, + { + .id = V4L2_CID_EXPOSURE_AUTO_PRIORITY, + .name = "Exposure, Auto Priority", + .entity = UVC_GUID_UVC_CAMERA, + .selector = CT_AE_PRIORITY_CONTROL, + .size = 1, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_BOOLEAN, + .data_type = UVC_CTRL_DATA_TYPE_BOOLEAN, + }, + { + .id = V4L2_CID_EXPOSURE_ABSOLUTE, + .name = "Exposure (Absolute)", + .entity = UVC_GUID_UVC_CAMERA, + .selector = CT_EXPOSURE_TIME_ABSOLUTE_CONTROL, + .size = 32, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_INTEGER, + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED, + }, + { + .id = V4L2_CID_AUTO_WHITE_BALANCE, + .name = "White Balance Temperature, Auto", + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL, + .size = 1, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_BOOLEAN, + .data_type = UVC_CTRL_DATA_TYPE_BOOLEAN, + }, + { + .id = V4L2_CID_WHITE_BALANCE_TEMPERATURE, + .name = "White Balance Temperature", + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_WHITE_BALANCE_TEMPERATURE_CONTROL, + .size = 16, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_INTEGER, + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED, + }, + { + .id = V4L2_CID_AUTO_WHITE_BALANCE, + .name = "White Balance Component, Auto", + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL, + .size = 1, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_BOOLEAN, + .data_type = UVC_CTRL_DATA_TYPE_BOOLEAN, + }, + { + .id = V4L2_CID_BLUE_BALANCE, + .name = "White Balance Blue Component", + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_WHITE_BALANCE_COMPONENT_CONTROL, + .size = 16, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_INTEGER, + .data_type = UVC_CTRL_DATA_TYPE_SIGNED, + }, + { + .id = V4L2_CID_RED_BALANCE, + .name = "White Balance Red Component", + .entity = UVC_GUID_UVC_PROCESSING, + .selector = PU_WHITE_BALANCE_COMPONENT_CONTROL, + .size = 16, + .offset = 16, + .v4l2_type = V4L2_CTRL_TYPE_INTEGER, + .data_type = UVC_CTRL_DATA_TYPE_SIGNED, + }, + { + .id = V4L2_CID_FOCUS_ABSOLUTE, + .name = "Focus (absolute)", + .entity = UVC_GUID_UVC_CAMERA, + .selector = CT_FOCUS_ABSOLUTE_CONTROL, + .size = 16, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_INTEGER, + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED, + }, + { + .id = V4L2_CID_FOCUS_AUTO, + .name = "Focus, Auto", + .entity = UVC_GUID_UVC_CAMERA, + .selector = CT_FOCUS_AUTO_CONTROL, + .size = 1, + .offset = 0, + .v4l2_type = V4L2_CTRL_TYPE_BOOLEAN, + .data_type = UVC_CTRL_DATA_TYPE_BOOLEAN, + }, +}; + +/* ------------------------------------------------------------------------ + * Utility functions + */ + +static inline __u8 *uvc_ctrl_data(struct uvc_control *ctrl, int id) +{ + return ctrl->data + id * ctrl->info->size; +} + +static inline int uvc_get_bit(const __u8 *data, int bit) +{ + return (data[bit >> 3] >> (bit & 7)) & 1; +} + +/* Extract the bit string specified by mapping->offset and mapping->size + * from the little-endian data stored at 'data' and return the result as + * a signed 32bit integer. Sign extension will be performed if the mapping + * references a signed data type. + */ +static __s32 uvc_get_le_value(const __u8 *data, + struct uvc_control_mapping *mapping) +{ + int bits = mapping->size; + int offset = mapping->offset; + __s32 value = 0; + __u8 mask; + + data += offset / 8; + offset &= 7; + mask = ((1LL << bits) - 1) << offset; + + for (; bits > 0; data++) { + __u8 byte = *data & mask; + value |= offset > 0 ? (byte >> offset) : (byte << (-offset)); + bits -= 8 - (offset > 0 ? offset : 0); + offset -= 8; + mask = (1 << bits) - 1; + } + + /* Sign-extend the value if needed */ + if (mapping->data_type == UVC_CTRL_DATA_TYPE_SIGNED) + value |= -(value & (1 << (mapping->size - 1))); + + return value; +} + +/* Set the bit string specified by mapping->offset and mapping->size + * in the little-endian data stored at 'data' to the value 'value'. + */ +static void uvc_set_le_value(__s32 value, __u8 *data, + struct uvc_control_mapping *mapping) +{ + int bits = mapping->size; + int offset = mapping->offset; + __u8 mask; + + data += offset / 8; + offset &= 7; + + for (; bits > 0; data++) { + mask = ((1LL << bits) - 1) << offset; + *data = (*data & ~mask) | ((value << offset) & mask); + value >>= offset ? offset : 8; + bits -= 8 - offset; + offset = 0; + } +} + +/* ------------------------------------------------------------------------ + * Terminal and unit management + */ + +static const __u8 uvc_processing_guid[16] = UVC_GUID_UVC_PROCESSING; +static const __u8 uvc_camera_guid[16] = UVC_GUID_UVC_CAMERA; +static const __u8 uvc_media_transport_input_guid[16] = + UVC_GUID_UVC_MEDIA_TRANSPORT_INPUT; + +static int uvc_entity_match_guid(struct uvc_entity *entity, __u8 guid[16]) +{ + switch (UVC_ENTITY_TYPE(entity)) { + case ITT_CAMERA: + return memcmp(uvc_camera_guid, guid, 16) == 0; + + case ITT_MEDIA_TRANSPORT_INPUT: + return memcmp(uvc_media_transport_input_guid, guid, 16) == 0; + + case VC_PROCESSING_UNIT: + return memcmp(uvc_processing_guid, guid, 16) == 0; + + case VC_EXTENSION_UNIT: + return memcmp(entity->extension.guidExtensionCode, + guid, 16) == 0; + + default: + return 0; + } +} + +/* ------------------------------------------------------------------------ + * UVC Controls + */ + +static void __uvc_find_control(struct uvc_entity *entity, __u32 v4l2_id, + struct uvc_control_mapping **mapping, struct uvc_control **control, + int next) +{ + struct uvc_control *ctrl; + struct uvc_control_mapping *map; + unsigned int i; + + if (entity == NULL) + return; + + for (i = 0; i < entity->ncontrols; ++i) { + ctrl = &entity->controls[i]; + if (ctrl->info == NULL) + continue; + + list_for_each_entry(map, &ctrl->info->mappings, list) { + if ((map->id == v4l2_id) && !next) { + *control = ctrl; + *mapping = map; + return; + } + + if ((*mapping == NULL || (*mapping)->id > map->id) && + (map->id > v4l2_id) && next) { + *control = ctrl; + *mapping = map; + } + } + } +} + +struct uvc_control *uvc_find_control(struct uvc_video_device *video, + __u32 v4l2_id, struct uvc_control_mapping **mapping) +{ + struct uvc_control *ctrl = NULL; + struct uvc_entity *entity; + int next = v4l2_id & V4L2_CTRL_FLAG_NEXT_CTRL; + + *mapping = NULL; + + /* Mask the query flags. */ + v4l2_id &= V4L2_CTRL_ID_MASK; + + /* Find the control. */ + __uvc_find_control(video->processing, v4l2_id, mapping, &ctrl, next); + if (ctrl && !next) + return ctrl; + + list_for_each_entry(entity, &video->iterms, chain) { + __uvc_find_control(entity, v4l2_id, mapping, &ctrl, next); + if (ctrl && !next) + return ctrl; + } + + list_for_each_entry(entity, &video->extensions, chain) { + __uvc_find_control(entity, v4l2_id, mapping, &ctrl, next); + if (ctrl && !next) + return ctrl; + } + + if (ctrl == NULL && !next) + uvc_trace(UVC_TRACE_CONTROL, "Control 0x%08x not found.\n", + v4l2_id); + + return ctrl; +} + +int uvc_query_v4l2_ctrl(struct uvc_video_device *video, + struct v4l2_queryctrl *v4l2_ctrl) +{ + struct uvc_control *ctrl; + struct uvc_control_mapping *mapping; + struct uvc_menu_info *menu; + unsigned int i; + __u8 data[8]; + int ret; + + ctrl = uvc_find_control(video, v4l2_ctrl->id, &mapping); + if (ctrl == NULL) + return -EINVAL; + + v4l2_ctrl->id = mapping->id; + v4l2_ctrl->type = mapping->v4l2_type; + strncpy(v4l2_ctrl->name, mapping->name, sizeof v4l2_ctrl->name); + v4l2_ctrl->flags = 0; + + if (!(ctrl->info->flags & UVC_CONTROL_SET_CUR)) + v4l2_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + if (ctrl->info->flags & UVC_CONTROL_GET_DEF) { + if ((ret = uvc_query_ctrl(video->dev, GET_DEF, ctrl->entity->id, + video->dev->intfnum, ctrl->info->selector, + &data, ctrl->info->size)) < 0) + return ret; + v4l2_ctrl->default_value = uvc_get_le_value(data, mapping); + } + + if (mapping->v4l2_type == V4L2_CTRL_TYPE_MENU) { + v4l2_ctrl->minimum = 0; + v4l2_ctrl->maximum = mapping->menu_count - 1; + v4l2_ctrl->step = 1; + + menu = mapping->menu_info; + for (i = 0; i < mapping->menu_count; ++i, ++menu) { + if (menu->value == v4l2_ctrl->default_value) { + v4l2_ctrl->default_value = i; + break; + } + } + + return 0; + } + + if (ctrl->info->flags & UVC_CONTROL_GET_MIN) { + if ((ret = uvc_query_ctrl(video->dev, GET_MIN, ctrl->entity->id, + video->dev->intfnum, ctrl->info->selector, + &data, ctrl->info->size)) < 0) + return ret; + v4l2_ctrl->minimum = uvc_get_le_value(data, mapping); + } + if (ctrl->info->flags & UVC_CONTROL_GET_MAX) { + if ((ret = uvc_query_ctrl(video->dev, GET_MAX, ctrl->entity->id, + video->dev->intfnum, ctrl->info->selector, + &data, ctrl->info->size)) < 0) + return ret; + v4l2_ctrl->maximum = uvc_get_le_value(data, mapping); + } + if (ctrl->info->flags & UVC_CONTROL_GET_RES) { + if ((ret = uvc_query_ctrl(video->dev, GET_RES, ctrl->entity->id, + video->dev->intfnum, ctrl->info->selector, + &data, ctrl->info->size)) < 0) + return ret; + v4l2_ctrl->step = uvc_get_le_value(data, mapping); + } + + return 0; +} + + +/* -------------------------------------------------------------------------- + * Control transactions + * + * To make extended set operations as atomic as the hardware allows, controls + * are handled using begin/commit/rollback operations. + * + * At the beginning of a set request, uvc_ctrl_begin should be called to + * initialize the request. This function acquires the control lock. + * + * When setting a control, the new value is stored in the control data field + * at position UVC_CTRL_DATA_CURRENT. The control is then marked as dirty for + * later processing. If the UVC and V4L2 control sizes differ, the current + * value is loaded from the hardware before storing the new value in the data + * field. + * + * After processing all controls in the transaction, uvc_ctrl_commit or + * uvc_ctrl_rollback must be called to apply the pending changes to the + * hardware or revert them. When applying changes, all controls marked as + * dirty will be modified in the UVC device, and the dirty flag will be + * cleared. When reverting controls, the control data field + * UVC_CTRL_DATA_CURRENT is reverted to its previous value + * (UVC_CTRL_DATA_BACKUP) for all dirty controls. Both functions release the + * control lock. + */ +int uvc_ctrl_begin(struct uvc_video_device *video) +{ + return mutex_lock_interruptible(&video->ctrl_mutex) ? -ERESTARTSYS : 0; +} + +static int uvc_ctrl_commit_entity(struct uvc_device *dev, + struct uvc_entity *entity, int rollback) +{ + struct uvc_control *ctrl; + unsigned int i; + int ret; + + if (entity == NULL) + return 0; + + for (i = 0; i < entity->ncontrols; ++i) { + ctrl = &entity->controls[i]; + if (ctrl->info == NULL || !ctrl->dirty) + continue; + + if (!rollback) + ret = uvc_query_ctrl(dev, SET_CUR, ctrl->entity->id, + dev->intfnum, ctrl->info->selector, + uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT), + ctrl->info->size); + else + ret = 0; + + if (rollback || ret < 0) + memcpy(uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT), + uvc_ctrl_data(ctrl, UVC_CTRL_DATA_BACKUP), + ctrl->info->size); + + if ((ctrl->info->flags & UVC_CONTROL_GET_CUR) == 0) + ctrl->loaded = 0; + + ctrl->dirty = 0; + + if (ret < 0) + return ret; + } + + return 0; +} + +int __uvc_ctrl_commit(struct uvc_video_device *video, int rollback) +{ + struct uvc_entity *entity; + int ret = 0; + + /* Find the control. */ + ret = uvc_ctrl_commit_entity(video->dev, video->processing, rollback); + if (ret < 0) + goto done; + + list_for_each_entry(entity, &video->iterms, chain) { + ret = uvc_ctrl_commit_entity(video->dev, entity, rollback); + if (ret < 0) + goto done; + } + + list_for_each_entry(entity, &video->extensions, chain) { + ret = uvc_ctrl_commit_entity(video->dev, entity, rollback); + if (ret < 0) + goto done; + } + +done: + mutex_unlock(&video->ctrl_mutex); + return ret; +} + +int uvc_ctrl_get(struct uvc_video_device *video, + struct v4l2_ext_control *xctrl) +{ + struct uvc_control *ctrl; + struct uvc_control_mapping *mapping; + struct uvc_menu_info *menu; + unsigned int i; + int ret; + + ctrl = uvc_find_control(video, xctrl->id, &mapping); + if (ctrl == NULL || (ctrl->info->flags & UVC_CONTROL_GET_CUR) == 0) + return -EINVAL; + + if (!ctrl->loaded) { + ret = uvc_query_ctrl(video->dev, GET_CUR, ctrl->entity->id, + video->dev->intfnum, ctrl->info->selector, + uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT), + ctrl->info->size); + if (ret < 0) + return ret; + + if ((ctrl->info->flags & UVC_CONTROL_AUTO_UPDATE) == 0) + ctrl->loaded = 1; + } + + xctrl->value = uvc_get_le_value( + uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT), mapping); + + if (mapping->v4l2_type == V4L2_CTRL_TYPE_MENU) { + menu = mapping->menu_info; + for (i = 0; i < mapping->menu_count; ++i, ++menu) { + if (menu->value == xctrl->value) { + xctrl->value = i; + break; + } + } + } + + return 0; +} + +int uvc_ctrl_set(struct uvc_video_device *video, + struct v4l2_ext_control *xctrl) +{ + struct uvc_control *ctrl; + struct uvc_control_mapping *mapping; + s32 value = xctrl->value; + int ret; + + ctrl = uvc_find_control(video, xctrl->id, &mapping); + if (ctrl == NULL || (ctrl->info->flags & UVC_CONTROL_SET_CUR) == 0) + return -EINVAL; + + if (mapping->v4l2_type == V4L2_CTRL_TYPE_MENU) { + if (value < 0 || value >= mapping->menu_count) + return -EINVAL; + value = mapping->menu_info[value].value; + } + + if (!ctrl->loaded && (ctrl->info->size * 8) != mapping->size) { + if ((ctrl->info->flags & UVC_CONTROL_GET_CUR) == 0) { + memset(uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT), + 0, ctrl->info->size); + } else { + ret = uvc_query_ctrl(video->dev, GET_CUR, + ctrl->entity->id, video->dev->intfnum, + ctrl->info->selector, + uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT), + ctrl->info->size); + if (ret < 0) + return ret; + } + + if ((ctrl->info->flags & UVC_CONTROL_AUTO_UPDATE) == 0) + ctrl->loaded = 1; + } + + if (!ctrl->dirty) { + memcpy(uvc_ctrl_data(ctrl, UVC_CTRL_DATA_BACKUP), + uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT), + ctrl->info->size); + } + + uvc_set_le_value(value, + uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT), mapping); + + ctrl->dirty = 1; + ctrl->modified = 1; + return 0; +} + +/* -------------------------------------------------------------------------- + * Dynamic controls + */ + +int uvc_xu_ctrl_query(struct uvc_video_device *video, + struct uvc_xu_control *xctrl, int set) +{ + struct uvc_entity *entity; + struct uvc_control *ctrl = NULL; + unsigned int i, found = 0; + __u8 *data; + int ret; + + /* Find the extension unit. */ + list_for_each_entry(entity, &video->extensions, chain) { + if (entity->id == xctrl->unit) + break; + } + + if (entity->id != xctrl->unit) { + uvc_trace(UVC_TRACE_CONTROL, "Extension unit %u not found.\n", + xctrl->unit); + return -EINVAL; + } + + /* Find the control. */ + for (i = 0; i < entity->ncontrols; ++i) { + ctrl = &entity->controls[i]; + if (ctrl->info == NULL) + continue; + + if (ctrl->info->selector == xctrl->selector) { + found = 1; + break; + } + } + + if (!found) { + uvc_trace(UVC_TRACE_CONTROL, + "Control " UVC_GUID_FORMAT "/%u not found.\n", + UVC_GUID_ARGS(entity->extension.guidExtensionCode), + xctrl->selector); + return -EINVAL; + } + + /* Validate control data size. */ + if (ctrl->info->size != xctrl->size) + return -EINVAL; + + if ((set && !(ctrl->info->flags & UVC_CONTROL_SET_CUR)) || + (!set && !(ctrl->info->flags & UVC_CONTROL_GET_CUR))) + return -EINVAL; + + if (mutex_lock_interruptible(&video->ctrl_mutex)) + return -ERESTARTSYS; + + memcpy(uvc_ctrl_data(ctrl, UVC_CTRL_DATA_BACKUP), + uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT), + xctrl->size); + data = uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT); + + if (set && copy_from_user(data, xctrl->data, xctrl->size)) { + ret = -EFAULT; + goto out; + } + + ret = uvc_query_ctrl(video->dev, set ? SET_CUR : GET_CUR, xctrl->unit, + video->dev->intfnum, xctrl->selector, data, + xctrl->size); + if (ret < 0) + goto out; + + if (!set && copy_to_user(xctrl->data, data, xctrl->size)) { + ret = -EFAULT; + goto out; + } + +out: + if (ret) + memcpy(uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT), + uvc_ctrl_data(ctrl, UVC_CTRL_DATA_BACKUP), + xctrl->size); + + mutex_unlock(&video->ctrl_mutex); + return ret; +} + +/* -------------------------------------------------------------------------- + * Suspend/resume + */ + +/* + * Restore control values after resume, skipping controls that haven't been + * changed. + * + * TODO + * - Don't restore modified controls that are back to their default value. + * - Handle restore order (Auto-Exposure Mode should be restored before + * Exposure Time). + */ +int uvc_ctrl_resume_device(struct uvc_device *dev) +{ + struct uvc_control *ctrl; + struct uvc_entity *entity; + unsigned int i; + int ret; + + /* Walk the entities list and restore controls when possible. */ + list_for_each_entry(entity, &dev->entities, list) { + + for (i = 0; i < entity->ncontrols; ++i) { + ctrl = &entity->controls[i]; + + if (ctrl->info == NULL || !ctrl->modified || + (ctrl->info->flags & UVC_CONTROL_RESTORE) == 0) + continue; + + printk(KERN_INFO "restoring control " UVC_GUID_FORMAT + "/%u/%u\n", UVC_GUID_ARGS(ctrl->info->entity), + ctrl->info->index, ctrl->info->selector); + ctrl->dirty = 1; + } + + ret = uvc_ctrl_commit_entity(dev, entity, 0); + if (ret < 0) + return ret; + } + + return 0; +} + +/* -------------------------------------------------------------------------- + * Control and mapping handling + */ + +static void uvc_ctrl_add_ctrl(struct uvc_device *dev, + struct uvc_control_info *info) +{ + struct uvc_entity *entity; + struct uvc_control *ctrl = NULL; + int ret, found = 0; + unsigned int i; + + list_for_each_entry(entity, &dev->entities, list) { + if (!uvc_entity_match_guid(entity, info->entity)) + continue; + + for (i = 0; i < entity->ncontrols; ++i) { + ctrl = &entity->controls[i]; + if (ctrl->index == info->index) { + found = 1; + break; + } + } + + if (found) + break; + } + + if (!found) + return; + + if (UVC_ENTITY_TYPE(entity) == VC_EXTENSION_UNIT) { + /* Check if the device control information and length match + * the user supplied information. + */ + __u32 flags; + __le16 size; + __u8 inf; + + if ((ret = uvc_query_ctrl(dev, GET_LEN, ctrl->entity->id, + dev->intfnum, info->selector, (__u8 *)&size, 2)) < 0) { + uvc_trace(UVC_TRACE_CONTROL, "GET_LEN failed on " + "control " UVC_GUID_FORMAT "/%u (%d).\n", + UVC_GUID_ARGS(info->entity), info->selector, + ret); + return; + } + + if (info->size != le16_to_cpu(size)) { + uvc_trace(UVC_TRACE_CONTROL, "Control " UVC_GUID_FORMAT + "/%u size doesn't match user supplied " + "value.\n", UVC_GUID_ARGS(info->entity), + info->selector); + return; + } + + if ((ret = uvc_query_ctrl(dev, GET_INFO, ctrl->entity->id, + dev->intfnum, info->selector, &inf, 1)) < 0) { + uvc_trace(UVC_TRACE_CONTROL, "GET_INFO failed on " + "control " UVC_GUID_FORMAT "/%u (%d).\n", + UVC_GUID_ARGS(info->entity), info->selector, + ret); + return; + } + + flags = info->flags; + if (((flags & UVC_CONTROL_GET_CUR) && !(inf & (1 << 0))) || + ((flags & UVC_CONTROL_SET_CUR) && !(inf & (1 << 1)))) { + uvc_trace(UVC_TRACE_CONTROL, "Control " + UVC_GUID_FORMAT "/%u flags don't match " + "supported operations.\n", + UVC_GUID_ARGS(info->entity), info->selector); + return; + } + } + + ctrl->info = info; + ctrl->data = kmalloc(ctrl->info->size * UVC_CTRL_NDATA, GFP_KERNEL); + uvc_trace(UVC_TRACE_CONTROL, "Added control " UVC_GUID_FORMAT "/%u " + "to device %s entity %u\n", UVC_GUID_ARGS(ctrl->info->entity), + ctrl->info->selector, dev->udev->devpath, entity->id); +} + +/* + * Add an item to the UVC control information list, and instantiate a control + * structure for each device that supports the control. + */ +int uvc_ctrl_add_info(struct uvc_control_info *info) +{ + struct uvc_control_info *ctrl; + struct uvc_device *dev; + int ret = 0; + + /* Find matching controls by walking the devices, entities and + * controls list. + */ + mutex_lock(&uvc_driver.ctrl_mutex); + + /* First check if the list contains a control matching the new one. + * Bail out if it does. + */ + list_for_each_entry(ctrl, &uvc_driver.controls, list) { + if (memcmp(ctrl->entity, info->entity, 16)) + continue; + + if (ctrl->selector == info->selector) { + uvc_trace(UVC_TRACE_CONTROL, "Control " + UVC_GUID_FORMAT "/%u is already defined.\n", + UVC_GUID_ARGS(info->entity), info->selector); + ret = -EEXIST; + goto end; + } + if (ctrl->index == info->index) { + uvc_trace(UVC_TRACE_CONTROL, "Control " + UVC_GUID_FORMAT "/%u would overwrite index " + "%d.\n", UVC_GUID_ARGS(info->entity), + info->selector, info->index); + ret = -EEXIST; + goto end; + } + } + + list_for_each_entry(dev, &uvc_driver.devices, list) + uvc_ctrl_add_ctrl(dev, info); + + INIT_LIST_HEAD(&info->mappings); + list_add_tail(&info->list, &uvc_driver.controls); +end: + mutex_unlock(&uvc_driver.ctrl_mutex); + return ret; +} + +int uvc_ctrl_add_mapping(struct uvc_control_mapping *mapping) +{ + struct uvc_control_info *info; + struct uvc_control_mapping *map; + int ret = -EINVAL; + + if (mapping->id & ~V4L2_CTRL_ID_MASK) { + uvc_trace(UVC_TRACE_CONTROL, "Can't add mapping '%s' with " + "invalid control id 0x%08x\n", mapping->name, + mapping->id); + return -EINVAL; + } + + mutex_lock(&uvc_driver.ctrl_mutex); + list_for_each_entry(info, &uvc_driver.controls, list) { + if (memcmp(info->entity, mapping->entity, 16) || + info->selector != mapping->selector) + continue; + + if (info->size * 8 < mapping->size + mapping->offset) { + uvc_trace(UVC_TRACE_CONTROL, "Mapping '%s' would " + "overflow control " UVC_GUID_FORMAT "/%u\n", + mapping->name, UVC_GUID_ARGS(info->entity), + info->selector); + ret = -EOVERFLOW; + goto end; + } + + /* Check if the list contains a mapping matching the new one. + * Bail out if it does. + */ + list_for_each_entry(map, &info->mappings, list) { + if (map->id == mapping->id) { + uvc_trace(UVC_TRACE_CONTROL, "Mapping '%s' is " + "already defined.\n", mapping->name); + ret = -EEXIST; + goto end; + } + } + + mapping->ctrl = info; + list_add_tail(&mapping->list, &info->mappings); + uvc_trace(UVC_TRACE_CONTROL, "Adding mapping %s to control " + UVC_GUID_FORMAT "/%u.\n", mapping->name, + UVC_GUID_ARGS(info->entity), info->selector); + + ret = 0; + break; + } +end: + mutex_unlock(&uvc_driver.ctrl_mutex); + return ret; +} + +/* + * Initialize device controls. + */ +int uvc_ctrl_init_device(struct uvc_device *dev) +{ + struct uvc_control_info *info; + struct uvc_control *ctrl; + struct uvc_entity *entity; + unsigned int i; + + /* Walk the entities list and instantiate controls */ + list_for_each_entry(entity, &dev->entities, list) { + unsigned int bControlSize = 0, ncontrols = 0; + __u8 *bmControls = NULL; + + if (UVC_ENTITY_TYPE(entity) == VC_EXTENSION_UNIT) { + bmControls = entity->extension.bmControls; + bControlSize = entity->extension.bControlSize; + } else if (UVC_ENTITY_TYPE(entity) == VC_PROCESSING_UNIT) { + bmControls = entity->processing.bmControls; + bControlSize = entity->processing.bControlSize; + } else if (UVC_ENTITY_TYPE(entity) == ITT_CAMERA) { + bmControls = entity->camera.bmControls; + bControlSize = entity->camera.bControlSize; + } + + for (i = 0; i < bControlSize; ++i) + ncontrols += hweight8(bmControls[i]); + + if (ncontrols == 0) + continue; + + entity->controls = kzalloc(ncontrols*sizeof *ctrl, GFP_KERNEL); + if (entity->controls == NULL) + return -ENOMEM; + + entity->ncontrols = ncontrols; + + ctrl = entity->controls; + for (i = 0; i < bControlSize * 8; ++i) { + if (uvc_get_bit(bmControls, i) == 0) + continue; + + ctrl->entity = entity; + ctrl->index = i; + ctrl++; + } + } + + /* Walk the controls info list and associate them with the device + * controls, then add the device to the global device list. This has + * to be done while holding the controls lock, to make sure + * uvc_ctrl_add_info() will not get called in-between. + */ + mutex_lock(&uvc_driver.ctrl_mutex); + list_for_each_entry(info, &uvc_driver.controls, list) + uvc_ctrl_add_ctrl(dev, info); + + list_add_tail(&dev->list, &uvc_driver.devices); + mutex_unlock(&uvc_driver.ctrl_mutex); + + return 0; +} + +/* + * Cleanup device controls. + */ +void uvc_ctrl_cleanup_device(struct uvc_device *dev) +{ + struct uvc_entity *entity; + unsigned int i; + + /* Remove the device from the global devices list */ + mutex_lock(&uvc_driver.ctrl_mutex); + if (dev->list.next != NULL) + list_del(&dev->list); + mutex_unlock(&uvc_driver.ctrl_mutex); + + list_for_each_entry(entity, &dev->entities, list) { + for (i = 0; i < entity->ncontrols; ++i) + kfree(entity->controls[i].data); + + kfree(entity->controls); + } +} + +void uvc_ctrl_init(void) +{ + struct uvc_control_info *ctrl = uvc_ctrls; + struct uvc_control_info *cend = ctrl + ARRAY_SIZE(uvc_ctrls); + struct uvc_control_mapping *mapping = uvc_ctrl_mappings; + struct uvc_control_mapping *mend = + mapping + ARRAY_SIZE(uvc_ctrl_mappings); + + for (; ctrl < cend; ++ctrl) + uvc_ctrl_add_info(ctrl); + + for (; mapping < mend; ++mapping) + uvc_ctrl_add_mapping(mapping); +} diff --git a/drivers/media/video/uvc/uvc_driver.c b/drivers/media/video/uvc/uvc_driver.c new file mode 100644 index 00000000000..60ced589f89 --- /dev/null +++ b/drivers/media/video/uvc/uvc_driver.c @@ -0,0 +1,1955 @@ +/* + * uvc_driver.c -- USB Video Class driver + * + * Copyright (C) 2005-2008 + * Laurent Pinchart (laurent.pinchart@skynet.be) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +/* + * This driver aims to support video input devices compliant with the 'USB + * Video Class' specification. + * + * The driver doesn't support the deprecated v4l1 interface. It implements the + * mmap capture method only, and doesn't do any image format conversion in + * software. If your user-space application doesn't support YUYV or MJPEG, fix + * it :-). Please note that the MJPEG data have been stripped from their + * Huffman tables (DHT marker), you will need to add it back if your JPEG + * codec can't handle MJPEG data. + */ + +#include <linux/kernel.h> +#include <linux/version.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/usb.h> +#include <linux/videodev2.h> +#include <linux/vmalloc.h> +#include <linux/wait.h> +#include <asm/atomic.h> + +#include <media/v4l2-common.h> + +#include "uvcvideo.h" + +#define DRIVER_AUTHOR "Laurent Pinchart <laurent.pinchart@skynet.be>" +#define DRIVER_DESC "USB Video Class driver" +#ifndef DRIVER_VERSION +#define DRIVER_VERSION "v0.1.0" +#endif + +static unsigned int uvc_quirks_param; +unsigned int uvc_trace_param; + +/* ------------------------------------------------------------------------ + * Control, formats, ... + */ + +static struct uvc_format_desc uvc_fmts[] = { + { + .name = "YUV 4:2:2 (YUYV)", + .guid = UVC_GUID_FORMAT_YUY2, + .fcc = V4L2_PIX_FMT_YUYV, + }, + { + .name = "YUV 4:2:0 (NV12)", + .guid = UVC_GUID_FORMAT_NV12, + .fcc = V4L2_PIX_FMT_NV12, + }, + { + .name = "MJPEG", + .guid = UVC_GUID_FORMAT_MJPEG, + .fcc = V4L2_PIX_FMT_MJPEG, + }, + { + .name = "YVU 4:2:0 (YV12)", + .guid = UVC_GUID_FORMAT_YV12, + .fcc = V4L2_PIX_FMT_YVU420, + }, + { + .name = "YUV 4:2:0 (I420)", + .guid = UVC_GUID_FORMAT_I420, + .fcc = V4L2_PIX_FMT_YUV420, + }, + { + .name = "YUV 4:2:2 (UYVY)", + .guid = UVC_GUID_FORMAT_UYVY, + .fcc = V4L2_PIX_FMT_UYVY, + }, + { + .name = "Greyscale", + .guid = UVC_GUID_FORMAT_Y800, + .fcc = V4L2_PIX_FMT_GREY, + }, + { + .name = "RGB Bayer", + .guid = UVC_GUID_FORMAT_BY8, + .fcc = V4L2_PIX_FMT_SBGGR8, + }, +}; + +/* ------------------------------------------------------------------------ + * Utility functions + */ + +struct usb_host_endpoint *uvc_find_endpoint(struct usb_host_interface *alts, + __u8 epaddr) +{ + struct usb_host_endpoint *ep; + unsigned int i; + + for (i = 0; i < alts->desc.bNumEndpoints; ++i) { + ep = &alts->endpoint[i]; + if (ep->desc.bEndpointAddress == epaddr) + return ep; + } + + return NULL; +} + +static struct uvc_format_desc *uvc_format_by_guid(const __u8 guid[16]) +{ + unsigned int len = ARRAY_SIZE(uvc_fmts); + unsigned int i; + + for (i = 0; i < len; ++i) { + if (memcmp(guid, uvc_fmts[i].guid, 16) == 0) + return &uvc_fmts[i]; + } + + return NULL; +} + +static __u32 uvc_colorspace(const __u8 primaries) +{ + static const __u8 colorprimaries[] = { + 0, + V4L2_COLORSPACE_SRGB, + V4L2_COLORSPACE_470_SYSTEM_M, + V4L2_COLORSPACE_470_SYSTEM_BG, + V4L2_COLORSPACE_SMPTE170M, + V4L2_COLORSPACE_SMPTE240M, + }; + + if (primaries < ARRAY_SIZE(colorprimaries)) + return colorprimaries[primaries]; + + return 0; +} + +/* Simplify a fraction using a simple continued fraction decomposition. The + * idea here is to convert fractions such as 333333/10000000 to 1/30 using + * 32 bit arithmetic only. The algorithm is not perfect and relies upon two + * arbitrary parameters to remove non-significative terms from the simple + * continued fraction decomposition. Using 8 and 333 for n_terms and threshold + * respectively seems to give nice results. + */ +void uvc_simplify_fraction(uint32_t *numerator, uint32_t *denominator, + unsigned int n_terms, unsigned int threshold) +{ + uint32_t *an; + uint32_t x, y, r; + unsigned int i, n; + + an = kmalloc(n_terms * sizeof *an, GFP_KERNEL); + if (an == NULL) + return; + + /* Convert the fraction to a simple continued fraction. See + * http://mathforum.org/dr.math/faq/faq.fractions.html + * Stop if the current term is bigger than or equal to the given + * threshold. + */ + x = *numerator; + y = *denominator; + + for (n = 0; n < n_terms && y != 0; ++n) { + an[n] = x / y; + if (an[n] >= threshold) { + if (n < 2) + n++; + break; + } + + r = x - an[n] * y; + x = y; + y = r; + } + + /* Expand the simple continued fraction back to an integer fraction. */ + x = 0; + y = 1; + + for (i = n; i > 0; --i) { + r = y; + y = an[i-1] * y + x; + x = r; + } + + *numerator = y; + *denominator = x; + kfree(an); +} + +/* Convert a fraction to a frame interval in 100ns multiples. The idea here is + * to compute numerator / denominator * 10000000 using 32 bit fixed point + * arithmetic only. + */ +uint32_t uvc_fraction_to_interval(uint32_t numerator, uint32_t denominator) +{ + uint32_t multiplier; + + /* Saturate the result if the operation would overflow. */ + if (denominator == 0 || + numerator/denominator >= ((uint32_t)-1)/10000000) + return (uint32_t)-1; + + /* Divide both the denominator and the multiplier by two until + * numerator * multiplier doesn't overflow. If anyone knows a better + * algorithm please let me know. + */ + multiplier = 10000000; + while (numerator > ((uint32_t)-1)/multiplier) { + multiplier /= 2; + denominator /= 2; + } + + return denominator ? numerator * multiplier / denominator : 0; +} + +/* ------------------------------------------------------------------------ + * Terminal and unit management + */ + +static struct uvc_entity *uvc_entity_by_id(struct uvc_device *dev, int id) +{ + struct uvc_entity *entity; + + list_for_each_entry(entity, &dev->entities, list) { + if (entity->id == id) + return entity; + } + + return NULL; +} + +static struct uvc_entity *uvc_entity_by_reference(struct uvc_device *dev, + int id, struct uvc_entity *entity) +{ + unsigned int i; + + if (entity == NULL) + entity = list_entry(&dev->entities, struct uvc_entity, list); + + list_for_each_entry_continue(entity, &dev->entities, list) { + switch (UVC_ENTITY_TYPE(entity)) { + case TT_STREAMING: + if (entity->output.bSourceID == id) + return entity; + break; + + case VC_PROCESSING_UNIT: + if (entity->processing.bSourceID == id) + return entity; + break; + + case VC_SELECTOR_UNIT: + for (i = 0; i < entity->selector.bNrInPins; ++i) + if (entity->selector.baSourceID[i] == id) + return entity; + break; + + case VC_EXTENSION_UNIT: + for (i = 0; i < entity->extension.bNrInPins; ++i) + if (entity->extension.baSourceID[i] == id) + return entity; + break; + } + } + + return NULL; +} + +/* ------------------------------------------------------------------------ + * Descriptors handling + */ + +static int uvc_parse_format(struct uvc_device *dev, + struct uvc_streaming *streaming, struct uvc_format *format, + __u32 **intervals, unsigned char *buffer, int buflen) +{ + struct usb_interface *intf = streaming->intf; + struct usb_host_interface *alts = intf->cur_altsetting; + struct uvc_format_desc *fmtdesc; + struct uvc_frame *frame; + const unsigned char *start = buffer; + unsigned int interval; + unsigned int i, n; + __u8 ftype; + + format->type = buffer[2]; + format->index = buffer[3]; + + switch (buffer[2]) { + case VS_FORMAT_UNCOMPRESSED: + case VS_FORMAT_FRAME_BASED: + if (buflen < 27) { + uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming" + "interface %d FORMAT error\n", + dev->udev->devnum, + alts->desc.bInterfaceNumber); + return -EINVAL; + } + + /* Find the format descriptor from its GUID. */ + fmtdesc = uvc_format_by_guid(&buffer[5]); + + if (fmtdesc != NULL) { + strncpy(format->name, fmtdesc->name, + sizeof format->name); + format->fcc = fmtdesc->fcc; + } else { + uvc_printk(KERN_INFO, "Unknown video format " + UVC_GUID_FORMAT "\n", + UVC_GUID_ARGS(&buffer[5])); + snprintf(format->name, sizeof format->name, + UVC_GUID_FORMAT, UVC_GUID_ARGS(&buffer[5])); + format->fcc = 0; + } + + format->bpp = buffer[21]; + if (buffer[2] == VS_FORMAT_UNCOMPRESSED) { + ftype = VS_FRAME_UNCOMPRESSED; + } else { + ftype = VS_FRAME_FRAME_BASED; + if (buffer[27]) + format->flags = UVC_FMT_FLAG_COMPRESSED; + } + break; + + case VS_FORMAT_MJPEG: + if (buflen < 11) { + uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming" + "interface %d FORMAT error\n", + dev->udev->devnum, + alts->desc.bInterfaceNumber); + return -EINVAL; + } + + strncpy(format->name, "MJPEG", sizeof format->name); + format->fcc = V4L2_PIX_FMT_MJPEG; + format->flags = UVC_FMT_FLAG_COMPRESSED; + format->bpp = 0; + ftype = VS_FRAME_MJPEG; + break; + + case VS_FORMAT_DV: + if (buflen < 9) { + uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming" + "interface %d FORMAT error\n", + dev->udev->devnum, + alts->desc.bInterfaceNumber); + return -EINVAL; + } + + switch (buffer[8] & 0x7f) { + case 0: + strncpy(format->name, "SD-DV", sizeof format->name); + break; + case 1: + strncpy(format->name, "SDL-DV", sizeof format->name); + break; + case 2: + strncpy(format->name, "HD-DV", sizeof format->name); + break; + default: + uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming" + "interface %d: unknown DV format %u\n", + dev->udev->devnum, + alts->desc.bInterfaceNumber, buffer[8]); + return -EINVAL; + } + + strncat(format->name, buffer[8] & (1 << 7) ? " 60Hz" : " 50Hz", + sizeof format->name); + + format->fcc = V4L2_PIX_FMT_DV; + format->flags = UVC_FMT_FLAG_COMPRESSED | UVC_FMT_FLAG_STREAM; + format->bpp = 0; + ftype = 0; + + /* Create a dummy frame descriptor. */ + frame = &format->frame[0]; + memset(&format->frame[0], 0, sizeof format->frame[0]); + frame->bFrameIntervalType = 1; + frame->dwDefaultFrameInterval = 1; + frame->dwFrameInterval = *intervals; + *(*intervals)++ = 1; + format->nframes = 1; + break; + + case VS_FORMAT_MPEG2TS: + case VS_FORMAT_STREAM_BASED: + /* Not supported yet. */ + default: + uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming" + "interface %d unsupported format %u\n", + dev->udev->devnum, alts->desc.bInterfaceNumber, + buffer[2]); + return -EINVAL; + } + + uvc_trace(UVC_TRACE_DESCR, "Found format %s.\n", format->name); + + buflen -= buffer[0]; + buffer += buffer[0]; + + /* Parse the frame descriptors. Only uncompressed, MJPEG and frame + * based formats have frame descriptors. + */ + while (buflen > 2 && buffer[2] == ftype) { + frame = &format->frame[format->nframes]; + + if (ftype != VS_FRAME_FRAME_BASED) + n = buflen > 25 ? buffer[25] : 0; + else + n = buflen > 21 ? buffer[21] : 0; + + n = n ? n : 3; + + if (buflen < 26 + 4*n) { + uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming" + "interface %d FRAME error\n", dev->udev->devnum, + alts->desc.bInterfaceNumber); + return -EINVAL; + } + + frame->bFrameIndex = buffer[3]; + frame->bmCapabilities = buffer[4]; + frame->wWidth = le16_to_cpup((__le16 *)&buffer[5]); + frame->wHeight = le16_to_cpup((__le16 *)&buffer[7]); + frame->dwMinBitRate = le32_to_cpup((__le32 *)&buffer[9]); + frame->dwMaxBitRate = le32_to_cpup((__le32 *)&buffer[13]); + if (ftype != VS_FRAME_FRAME_BASED) { + frame->dwMaxVideoFrameBufferSize = + le32_to_cpup((__le32 *)&buffer[17]); + frame->dwDefaultFrameInterval = + le32_to_cpup((__le32 *)&buffer[21]); + frame->bFrameIntervalType = buffer[25]; + } else { + frame->dwMaxVideoFrameBufferSize = 0; + frame->dwDefaultFrameInterval = + le32_to_cpup((__le32 *)&buffer[17]); + frame->bFrameIntervalType = buffer[21]; + } + frame->dwFrameInterval = *intervals; + + /* Several UVC chipsets screw up dwMaxVideoFrameBufferSize + * completely. Observed behaviours range from setting the + * value to 1.1x the actual frame size of hardwiring the + * 16 low bits to 0. This results in a higher than necessary + * memory usage as well as a wrong image size information. For + * uncompressed formats this can be fixed by computing the + * value from the frame size. + */ + if (!(format->flags & UVC_FMT_FLAG_COMPRESSED)) + frame->dwMaxVideoFrameBufferSize = format->bpp + * frame->wWidth * frame->wHeight / 8; + + /* Some bogus devices report dwMinFrameInterval equal to + * dwMaxFrameInterval and have dwFrameIntervalStep set to + * zero. Setting all null intervals to 1 fixes the problem and + * some other divisions by zero which could happen. + */ + for (i = 0; i < n; ++i) { + interval = le32_to_cpup((__le32 *)&buffer[26+4*i]); + *(*intervals)++ = interval ? interval : 1; + } + + /* Make sure that the default frame interval stays between + * the boundaries. + */ + n -= frame->bFrameIntervalType ? 1 : 2; + frame->dwDefaultFrameInterval = + min(frame->dwFrameInterval[n], + max(frame->dwFrameInterval[0], + frame->dwDefaultFrameInterval)); + + uvc_trace(UVC_TRACE_DESCR, "- %ux%u (%u.%u fps)\n", + frame->wWidth, frame->wHeight, + 10000000/frame->dwDefaultFrameInterval, + (100000000/frame->dwDefaultFrameInterval)%10); + + format->nframes++; + buflen -= buffer[0]; + buffer += buffer[0]; + } + + if (buflen > 2 && buffer[2] == VS_STILL_IMAGE_FRAME) { + buflen -= buffer[0]; + buffer += buffer[0]; + } + + if (buflen > 2 && buffer[2] == VS_COLORFORMAT) { + if (buflen < 6) { + uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming" + "interface %d COLORFORMAT error\n", + dev->udev->devnum, + alts->desc.bInterfaceNumber); + return -EINVAL; + } + + format->colorspace = uvc_colorspace(buffer[3]); + + buflen -= buffer[0]; + buffer += buffer[0]; + } + + return buffer - start; +} + +static int uvc_parse_streaming(struct uvc_device *dev, + struct usb_interface *intf) +{ + struct uvc_streaming *streaming = NULL; + struct uvc_format *format; + struct uvc_frame *frame; + struct usb_host_interface *alts = &intf->altsetting[0]; + unsigned char *_buffer, *buffer = alts->extra; + int _buflen, buflen = alts->extralen; + unsigned int nformats = 0, nframes = 0, nintervals = 0; + unsigned int size, i, n, p; + __u32 *interval; + __u16 psize; + int ret = -EINVAL; + + if (intf->cur_altsetting->desc.bInterfaceSubClass + != SC_VIDEOSTREAMING) { + uvc_trace(UVC_TRACE_DESCR, "device %d interface %d isn't a " + "video streaming interface\n", dev->udev->devnum, + intf->altsetting[0].desc.bInterfaceNumber); + return -EINVAL; + } + + if (usb_driver_claim_interface(&uvc_driver.driver, intf, dev)) { + uvc_trace(UVC_TRACE_DESCR, "device %d interface %d is already " + "claimed\n", dev->udev->devnum, + intf->altsetting[0].desc.bInterfaceNumber); + return -EINVAL; + } + + streaming = kzalloc(sizeof *streaming, GFP_KERNEL); + if (streaming == NULL) { + usb_driver_release_interface(&uvc_driver.driver, intf); + return -EINVAL; + } + + mutex_init(&streaming->mutex); + streaming->intf = usb_get_intf(intf); + streaming->intfnum = intf->cur_altsetting->desc.bInterfaceNumber; + + /* The Pico iMage webcam has its class-specific interface descriptors + * after the endpoint descriptors. + */ + if (buflen == 0) { + for (i = 0; i < alts->desc.bNumEndpoints; ++i) { + struct usb_host_endpoint *ep = &alts->endpoint[i]; + + if (ep->extralen == 0) + continue; + + if (ep->extralen > 2 && + ep->extra[1] == USB_DT_CS_INTERFACE) { + uvc_trace(UVC_TRACE_DESCR, "trying extra data " + "from endpoint %u.\n", i); + buffer = alts->endpoint[i].extra; + buflen = alts->endpoint[i].extralen; + break; + } + } + } + + /* Skip the standard interface descriptors. */ + while (buflen > 2 && buffer[1] != USB_DT_CS_INTERFACE) { + buflen -= buffer[0]; + buffer += buffer[0]; + } + + if (buflen <= 2) { + uvc_trace(UVC_TRACE_DESCR, "no class-specific streaming " + "interface descriptors found.\n"); + goto error; + } + + /* Parse the header descriptor. */ + if (buffer[2] == VS_OUTPUT_HEADER) { + uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface " + "%d OUTPUT HEADER descriptor is not supported.\n", + dev->udev->devnum, alts->desc.bInterfaceNumber); + goto error; + } else if (buffer[2] == VS_INPUT_HEADER) { + p = buflen >= 5 ? buffer[3] : 0; + n = buflen >= 12 ? buffer[12] : 0; + + if (buflen < 13 + p*n || buffer[2] != VS_INPUT_HEADER) { + uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " + "interface %d INPUT HEADER descriptor is " + "invalid.\n", dev->udev->devnum, + alts->desc.bInterfaceNumber); + goto error; + } + + streaming->header.bNumFormats = p; + streaming->header.bEndpointAddress = buffer[6]; + streaming->header.bmInfo = buffer[7]; + streaming->header.bTerminalLink = buffer[8]; + streaming->header.bStillCaptureMethod = buffer[9]; + streaming->header.bTriggerSupport = buffer[10]; + streaming->header.bTriggerUsage = buffer[11]; + streaming->header.bControlSize = n; + + streaming->header.bmaControls = kmalloc(p*n, GFP_KERNEL); + if (streaming->header.bmaControls == NULL) { + ret = -ENOMEM; + goto error; + } + + memcpy(streaming->header.bmaControls, &buffer[13], p*n); + } else { + uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface " + "%d HEADER descriptor not found.\n", dev->udev->devnum, + alts->desc.bInterfaceNumber); + goto error; + } + + buflen -= buffer[0]; + buffer += buffer[0]; + + _buffer = buffer; + _buflen = buflen; + + /* Count the format and frame descriptors. */ + while (_buflen > 2) { + switch (_buffer[2]) { + case VS_FORMAT_UNCOMPRESSED: + case VS_FORMAT_MJPEG: + case VS_FORMAT_FRAME_BASED: + nformats++; + break; + + case VS_FORMAT_DV: + /* DV format has no frame descriptor. We will create a + * dummy frame descriptor with a dummy frame interval. + */ + nformats++; + nframes++; + nintervals++; + break; + + case VS_FORMAT_MPEG2TS: + case VS_FORMAT_STREAM_BASED: + uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming " + "interface %d FORMAT %u is not supported.\n", + dev->udev->devnum, + alts->desc.bInterfaceNumber, _buffer[2]); + break; + + case VS_FRAME_UNCOMPRESSED: + case VS_FRAME_MJPEG: + nframes++; + if (_buflen > 25) + nintervals += _buffer[25] ? _buffer[25] : 3; + break; + + case VS_FRAME_FRAME_BASED: + nframes++; + if (_buflen > 21) + nintervals += _buffer[21] ? _buffer[21] : 3; + break; + } + + _buflen -= _buffer[0]; + _buffer += _buffer[0]; + } + + if (nformats == 0) { + uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming interface " + "%d has no supported formats defined.\n", + dev->udev->devnum, alts->desc.bInterfaceNumber); + goto error; + } + + size = nformats * sizeof *format + nframes * sizeof *frame + + nintervals * sizeof *interval; + format = kzalloc(size, GFP_KERNEL); + if (format == NULL) { + ret = -ENOMEM; + goto error; + } + + frame = (struct uvc_frame *)&format[nformats]; + interval = (__u32 *)&frame[nframes]; + + streaming->format = format; + streaming->nformats = nformats; + + /* Parse the format descriptors. */ + while (buflen > 2) { + switch (buffer[2]) { + case VS_FORMAT_UNCOMPRESSED: + case VS_FORMAT_MJPEG: + case VS_FORMAT_DV: + case VS_FORMAT_FRAME_BASED: + format->frame = frame; + ret = uvc_parse_format(dev, streaming, format, + &interval, buffer, buflen); + if (ret < 0) + goto error; + + frame += format->nframes; + format++; + + buflen -= ret; + buffer += ret; + continue; + + default: + break; + } + + buflen -= buffer[0]; + buffer += buffer[0]; + } + + /* Parse the alternate settings to find the maximum bandwidth. */ + for (i = 0; i < intf->num_altsetting; ++i) { + struct usb_host_endpoint *ep; + alts = &intf->altsetting[i]; + ep = uvc_find_endpoint(alts, + streaming->header.bEndpointAddress); + if (ep == NULL) + continue; + + psize = le16_to_cpu(ep->desc.wMaxPacketSize); + psize = (psize & 0x07ff) * (1 + ((psize >> 11) & 3)); + if (psize > streaming->maxpsize) + streaming->maxpsize = psize; + } + + list_add_tail(&streaming->list, &dev->streaming); + return 0; + +error: + usb_driver_release_interface(&uvc_driver.driver, intf); + usb_put_intf(intf); + kfree(streaming->format); + kfree(streaming->header.bmaControls); + kfree(streaming); + return ret; +} + +/* Parse vendor-specific extensions. */ +static int uvc_parse_vendor_control(struct uvc_device *dev, + const unsigned char *buffer, int buflen) +{ + struct usb_device *udev = dev->udev; + struct usb_host_interface *alts = dev->intf->cur_altsetting; + struct uvc_entity *unit; + unsigned int n, p; + int handled = 0; + + switch (le16_to_cpu(dev->udev->descriptor.idVendor)) { + case 0x046d: /* Logitech */ + if (buffer[1] != 0x41 || buffer[2] != 0x01) + break; + + /* Logitech implements several vendor specific functions + * through vendor specific extension units (LXU). + * + * The LXU descriptors are similar to XU descriptors + * (see "USB Device Video Class for Video Devices", section + * 3.7.2.6 "Extension Unit Descriptor") with the following + * differences: + * + * ---------------------------------------------------------- + * 0 bLength 1 Number + * Size of this descriptor, in bytes: 24+p+n*2 + * ---------------------------------------------------------- + * 23+p+n bmControlsType N Bitmap + * Individual bits in the set are defined: + * 0: Absolute + * 1: Relative + * + * This bitset is mapped exactly the same as bmControls. + * ---------------------------------------------------------- + * 23+p+n*2 bReserved 1 Boolean + * ---------------------------------------------------------- + * 24+p+n*2 iExtension 1 Index + * Index of a string descriptor that describes this + * extension unit. + * ---------------------------------------------------------- + */ + p = buflen >= 22 ? buffer[21] : 0; + n = buflen >= 25 + p ? buffer[22+p] : 0; + + if (buflen < 25 + p + 2*n) { + uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " + "interface %d EXTENSION_UNIT error\n", + udev->devnum, alts->desc.bInterfaceNumber); + break; + } + + unit = kzalloc(sizeof *unit + p + 2*n, GFP_KERNEL); + if (unit == NULL) + return -ENOMEM; + + unit->id = buffer[3]; + unit->type = VC_EXTENSION_UNIT; + memcpy(unit->extension.guidExtensionCode, &buffer[4], 16); + unit->extension.bNumControls = buffer[20]; + unit->extension.bNrInPins = + le16_to_cpup((__le16 *)&buffer[21]); + unit->extension.baSourceID = (__u8 *)unit + sizeof *unit; + memcpy(unit->extension.baSourceID, &buffer[22], p); + unit->extension.bControlSize = buffer[22+p]; + unit->extension.bmControls = (__u8 *)unit + sizeof *unit + p; + unit->extension.bmControlsType = (__u8 *)unit + sizeof *unit + + p + n; + memcpy(unit->extension.bmControls, &buffer[23+p], 2*n); + + if (buffer[24+p+2*n] != 0) + usb_string(udev, buffer[24+p+2*n], unit->name, + sizeof unit->name); + else + sprintf(unit->name, "Extension %u", buffer[3]); + + list_add_tail(&unit->list, &dev->entities); + handled = 1; + break; + } + + return handled; +} + +static int uvc_parse_standard_control(struct uvc_device *dev, + const unsigned char *buffer, int buflen) +{ + struct usb_device *udev = dev->udev; + struct uvc_entity *unit, *term; + struct usb_interface *intf; + struct usb_host_interface *alts = dev->intf->cur_altsetting; + unsigned int i, n, p, len; + __u16 type; + + switch (buffer[2]) { + case VC_HEADER: + n = buflen >= 12 ? buffer[11] : 0; + + if (buflen < 12 || buflen < 12 + n) { + uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " + "interface %d HEADER error\n", udev->devnum, + alts->desc.bInterfaceNumber); + return -EINVAL; + } + + dev->uvc_version = le16_to_cpup((__le16 *)&buffer[3]); + dev->clock_frequency = le32_to_cpup((__le32 *)&buffer[7]); + + /* Parse all USB Video Streaming interfaces. */ + for (i = 0; i < n; ++i) { + intf = usb_ifnum_to_if(udev, buffer[12+i]); + if (intf == NULL) { + uvc_trace(UVC_TRACE_DESCR, "device %d " + "interface %d doesn't exists\n", + udev->devnum, i); + continue; + } + + uvc_parse_streaming(dev, intf); + } + break; + + case VC_INPUT_TERMINAL: + if (buflen < 8) { + uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " + "interface %d INPUT_TERMINAL error\n", + udev->devnum, alts->desc.bInterfaceNumber); + return -EINVAL; + } + + /* Make sure the terminal type MSB is not null, otherwise it + * could be confused with a unit. + */ + type = le16_to_cpup((__le16 *)&buffer[4]); + if ((type & 0xff00) == 0) { + uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " + "interface %d INPUT_TERMINAL %d has invalid " + "type 0x%04x, skipping\n", udev->devnum, + alts->desc.bInterfaceNumber, + buffer[3], type); + return 0; + } + + n = 0; + p = 0; + len = 8; + + if (type == ITT_CAMERA) { + n = buflen >= 15 ? buffer[14] : 0; + len = 15; + + } else if (type == ITT_MEDIA_TRANSPORT_INPUT) { + n = buflen >= 9 ? buffer[8] : 0; + p = buflen >= 10 + n ? buffer[9+n] : 0; + len = 10; + } + + if (buflen < len + n + p) { + uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " + "interface %d INPUT_TERMINAL error\n", + udev->devnum, alts->desc.bInterfaceNumber); + return -EINVAL; + } + + term = kzalloc(sizeof *term + n + p, GFP_KERNEL); + if (term == NULL) + return -ENOMEM; + + term->id = buffer[3]; + term->type = type | UVC_TERM_INPUT; + + if (UVC_ENTITY_TYPE(term) == ITT_CAMERA) { + term->camera.bControlSize = n; + term->camera.bmControls = (__u8 *)term + sizeof *term; + term->camera.wObjectiveFocalLengthMin = + le16_to_cpup((__le16 *)&buffer[8]); + term->camera.wObjectiveFocalLengthMax = + le16_to_cpup((__le16 *)&buffer[10]); + term->camera.wOcularFocalLength = + le16_to_cpup((__le16 *)&buffer[12]); + memcpy(term->camera.bmControls, &buffer[15], n); + } else if (UVC_ENTITY_TYPE(term) == ITT_MEDIA_TRANSPORT_INPUT) { + term->media.bControlSize = n; + term->media.bmControls = (__u8 *)term + sizeof *term; + term->media.bTransportModeSize = p; + term->media.bmTransportModes = (__u8 *)term + + sizeof *term + n; + memcpy(term->media.bmControls, &buffer[9], n); + memcpy(term->media.bmTransportModes, &buffer[10+n], p); + } + + if (buffer[7] != 0) + usb_string(udev, buffer[7], term->name, + sizeof term->name); + else if (UVC_ENTITY_TYPE(term) == ITT_CAMERA) + sprintf(term->name, "Camera %u", buffer[3]); + else if (UVC_ENTITY_TYPE(term) == ITT_MEDIA_TRANSPORT_INPUT) + sprintf(term->name, "Media %u", buffer[3]); + else + sprintf(term->name, "Input %u", buffer[3]); + + list_add_tail(&term->list, &dev->entities); + break; + + case VC_OUTPUT_TERMINAL: + if (buflen < 9) { + uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " + "interface %d OUTPUT_TERMINAL error\n", + udev->devnum, alts->desc.bInterfaceNumber); + return -EINVAL; + } + + /* Make sure the terminal type MSB is not null, otherwise it + * could be confused with a unit. + */ + type = le16_to_cpup((__le16 *)&buffer[4]); + if ((type & 0xff00) == 0) { + uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " + "interface %d OUTPUT_TERMINAL %d has invalid " + "type 0x%04x, skipping\n", udev->devnum, + alts->desc.bInterfaceNumber, buffer[3], type); + return 0; + } + + term = kzalloc(sizeof *term, GFP_KERNEL); + if (term == NULL) + return -ENOMEM; + + term->id = buffer[3]; + term->type = type | UVC_TERM_OUTPUT; + term->output.bSourceID = buffer[7]; + + if (buffer[8] != 0) + usb_string(udev, buffer[8], term->name, + sizeof term->name); + else + sprintf(term->name, "Output %u", buffer[3]); + + list_add_tail(&term->list, &dev->entities); + break; + + case VC_SELECTOR_UNIT: + p = buflen >= 5 ? buffer[4] : 0; + + if (buflen < 5 || buflen < 6 + p) { + uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " + "interface %d SELECTOR_UNIT error\n", + udev->devnum, alts->desc.bInterfaceNumber); + return -EINVAL; + } + + unit = kzalloc(sizeof *unit + p, GFP_KERNEL); + if (unit == NULL) + return -ENOMEM; + + unit->id = buffer[3]; + unit->type = buffer[2]; + unit->selector.bNrInPins = buffer[4]; + unit->selector.baSourceID = (__u8 *)unit + sizeof *unit; + memcpy(unit->selector.baSourceID, &buffer[5], p); + + if (buffer[5+p] != 0) + usb_string(udev, buffer[5+p], unit->name, + sizeof unit->name); + else + sprintf(unit->name, "Selector %u", buffer[3]); + + list_add_tail(&unit->list, &dev->entities); + break; + + case VC_PROCESSING_UNIT: + n = buflen >= 8 ? buffer[7] : 0; + p = dev->uvc_version >= 0x0110 ? 10 : 9; + + if (buflen < p + n) { + uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " + "interface %d PROCESSING_UNIT error\n", + udev->devnum, alts->desc.bInterfaceNumber); + return -EINVAL; + } + + unit = kzalloc(sizeof *unit + n, GFP_KERNEL); + if (unit == NULL) + return -ENOMEM; + + unit->id = buffer[3]; + unit->type = buffer[2]; + unit->processing.bSourceID = buffer[4]; + unit->processing.wMaxMultiplier = + le16_to_cpup((__le16 *)&buffer[5]); + unit->processing.bControlSize = buffer[7]; + unit->processing.bmControls = (__u8 *)unit + sizeof *unit; + memcpy(unit->processing.bmControls, &buffer[8], n); + if (dev->uvc_version >= 0x0110) + unit->processing.bmVideoStandards = buffer[9+n]; + + if (buffer[8+n] != 0) + usb_string(udev, buffer[8+n], unit->name, + sizeof unit->name); + else + sprintf(unit->name, "Processing %u", buffer[3]); + + list_add_tail(&unit->list, &dev->entities); + break; + + case VC_EXTENSION_UNIT: + p = buflen >= 22 ? buffer[21] : 0; + n = buflen >= 24 + p ? buffer[22+p] : 0; + + if (buflen < 24 + p + n) { + uvc_trace(UVC_TRACE_DESCR, "device %d videocontrol " + "interface %d EXTENSION_UNIT error\n", + udev->devnum, alts->desc.bInterfaceNumber); + return -EINVAL; + } + + unit = kzalloc(sizeof *unit + p + n, GFP_KERNEL); + if (unit == NULL) + return -ENOMEM; + + unit->id = buffer[3]; + unit->type = buffer[2]; + memcpy(unit->extension.guidExtensionCode, &buffer[4], 16); + unit->extension.bNumControls = buffer[20]; + unit->extension.bNrInPins = + le16_to_cpup((__le16 *)&buffer[21]); + unit->extension.baSourceID = (__u8 *)unit + sizeof *unit; + memcpy(unit->extension.baSourceID, &buffer[22], p); + unit->extension.bControlSize = buffer[22+p]; + unit->extension.bmControls = (__u8 *)unit + sizeof *unit + p; + memcpy(unit->extension.bmControls, &buffer[23+p], n); + + if (buffer[23+p+n] != 0) + usb_string(udev, buffer[23+p+n], unit->name, + sizeof unit->name); + else + sprintf(unit->name, "Extension %u", buffer[3]); + + list_add_tail(&unit->list, &dev->entities); + break; + + default: + uvc_trace(UVC_TRACE_DESCR, "Found an unknown CS_INTERFACE " + "descriptor (%u)\n", buffer[2]); + break; + } + + return 0; +} + +static int uvc_parse_control(struct uvc_device *dev) +{ + struct usb_host_interface *alts = dev->intf->cur_altsetting; + unsigned char *buffer = alts->extra; + int buflen = alts->extralen; + int ret; + + /* Parse the default alternate setting only, as the UVC specification + * defines a single alternate setting, the default alternate setting + * zero. + */ + + while (buflen > 2) { + if (uvc_parse_vendor_control(dev, buffer, buflen) || + buffer[1] != USB_DT_CS_INTERFACE) + goto next_descriptor; + + if ((ret = uvc_parse_standard_control(dev, buffer, buflen)) < 0) + return ret; + +next_descriptor: + buflen -= buffer[0]; + buffer += buffer[0]; + } + + /* Check if the optional status endpoint is present. */ + if (alts->desc.bNumEndpoints == 1) { + struct usb_host_endpoint *ep = &alts->endpoint[0]; + struct usb_endpoint_descriptor *desc = &ep->desc; + + if (usb_endpoint_is_int_in(desc) && + le16_to_cpu(desc->wMaxPacketSize) >= 8 && + desc->bInterval != 0) { + uvc_trace(UVC_TRACE_DESCR, "Found a Status endpoint " + "(addr %02x).\n", desc->bEndpointAddress); + dev->int_ep = ep; + } + } + + return 0; +} + +/* ------------------------------------------------------------------------ + * USB probe and disconnect + */ + +/* + * Unregister the video devices. + */ +static void uvc_unregister_video(struct uvc_device *dev) +{ + if (dev->video.vdev) { + if (dev->video.vdev->minor == -1) + video_device_release(dev->video.vdev); + else + video_unregister_device(dev->video.vdev); + dev->video.vdev = NULL; + } +} + +/* + * Scan the UVC descriptors to locate a chain starting at an Output Terminal + * and containing the following units: + * + * - a USB Streaming Output Terminal + * - zero or one Processing Unit + * - zero, one or mode single-input Selector Units + * - zero or one multiple-input Selector Units, provided all inputs are + * connected to input terminals + * - zero, one or mode single-input Extension Units + * - one Camera Input Terminal, or one or more External terminals. + * + * A side forward scan is made on each detected entity to check for additional + * extension units. + */ +static int uvc_scan_chain_entity(struct uvc_video_device *video, + struct uvc_entity *entity) +{ + switch (UVC_ENTITY_TYPE(entity)) { + case VC_EXTENSION_UNIT: + if (uvc_trace_param & UVC_TRACE_PROBE) + printk(" <- XU %d", entity->id); + + if (entity->extension.bNrInPins != 1) { + uvc_trace(UVC_TRACE_DESCR, "Extension unit %d has more " + "than 1 input pin.\n", entity->id); + return -1; + } + + list_add_tail(&entity->chain, &video->extensions); + break; + + case VC_PROCESSING_UNIT: + if (uvc_trace_param & UVC_TRACE_PROBE) + printk(" <- PU %d", entity->id); + + if (video->processing != NULL) { + uvc_trace(UVC_TRACE_DESCR, "Found multiple " + "Processing Units in chain.\n"); + return -1; + } + + video->processing = entity; + break; + + case VC_SELECTOR_UNIT: + if (uvc_trace_param & UVC_TRACE_PROBE) + printk(" <- SU %d", entity->id); + + /* Single-input selector units are ignored. */ + if (entity->selector.bNrInPins == 1) + break; + + if (video->selector != NULL) { + uvc_trace(UVC_TRACE_DESCR, "Found multiple Selector " + "Units in chain.\n"); + return -1; + } + + video->selector = entity; + break; + + case ITT_VENDOR_SPECIFIC: + case ITT_CAMERA: + case ITT_MEDIA_TRANSPORT_INPUT: + if (uvc_trace_param & UVC_TRACE_PROBE) + printk(" <- IT %d\n", entity->id); + + list_add_tail(&entity->chain, &video->iterms); + break; + + default: + uvc_trace(UVC_TRACE_DESCR, "Unsupported entity type " + "0x%04x found in chain.\n", UVC_ENTITY_TYPE(entity)); + return -1; + } + + return 0; +} + +static int uvc_scan_chain_forward(struct uvc_video_device *video, + struct uvc_entity *entity, struct uvc_entity *prev) +{ + struct uvc_entity *forward; + int found; + + /* Forward scan */ + forward = NULL; + found = 0; + + while (1) { + forward = uvc_entity_by_reference(video->dev, entity->id, + forward); + if (forward == NULL) + break; + + if (UVC_ENTITY_TYPE(forward) != VC_EXTENSION_UNIT || + forward == prev) + continue; + + if (forward->extension.bNrInPins != 1) { + uvc_trace(UVC_TRACE_DESCR, "Extension unit %d has" + "more than 1 input pin.\n", entity->id); + return -1; + } + + list_add_tail(&forward->chain, &video->extensions); + if (uvc_trace_param & UVC_TRACE_PROBE) { + if (!found) + printk(" (-> XU"); + + printk(" %d", forward->id); + found = 1; + } + } + if (found) + printk(")"); + + return 0; +} + +static int uvc_scan_chain_backward(struct uvc_video_device *video, + struct uvc_entity *entity) +{ + struct uvc_entity *term; + int id = -1, i; + + switch (UVC_ENTITY_TYPE(entity)) { + case VC_EXTENSION_UNIT: + id = entity->extension.baSourceID[0]; + break; + + case VC_PROCESSING_UNIT: + id = entity->processing.bSourceID; + break; + + case VC_SELECTOR_UNIT: + /* Single-input selector units are ignored. */ + if (entity->selector.bNrInPins == 1) { + id = entity->selector.baSourceID[0]; + break; + } + + if (uvc_trace_param & UVC_TRACE_PROBE) + printk(" <- IT"); + + video->selector = entity; + for (i = 0; i < entity->selector.bNrInPins; ++i) { + id = entity->selector.baSourceID[i]; + term = uvc_entity_by_id(video->dev, id); + if (term == NULL || !UVC_ENTITY_IS_ITERM(term)) { + uvc_trace(UVC_TRACE_DESCR, "Selector unit %d " + "input %d isn't connected to an " + "input terminal\n", entity->id, i); + return -1; + } + + if (uvc_trace_param & UVC_TRACE_PROBE) + printk(" %d", term->id); + + list_add_tail(&term->chain, &video->iterms); + uvc_scan_chain_forward(video, term, entity); + } + + if (uvc_trace_param & UVC_TRACE_PROBE) + printk("\n"); + + id = 0; + break; + } + + return id; +} + +static int uvc_scan_chain(struct uvc_video_device *video) +{ + struct uvc_entity *entity, *prev; + int id; + + entity = video->oterm; + uvc_trace(UVC_TRACE_PROBE, "Scanning UVC chain: OT %d", entity->id); + id = entity->output.bSourceID; + while (id != 0) { + prev = entity; + entity = uvc_entity_by_id(video->dev, id); + if (entity == NULL) { + uvc_trace(UVC_TRACE_DESCR, "Found reference to " + "unknown entity %d.\n", id); + return -1; + } + + /* Process entity */ + if (uvc_scan_chain_entity(video, entity) < 0) + return -1; + + /* Forward scan */ + if (uvc_scan_chain_forward(video, entity, prev) < 0) + return -1; + + /* Stop when a terminal is found. */ + if (!UVC_ENTITY_IS_UNIT(entity)) + break; + + /* Backward scan */ + id = uvc_scan_chain_backward(video, entity); + if (id < 0) + return id; + } + + /* Initialize the video buffers queue. */ + uvc_queue_init(&video->queue); + + return 0; +} + +/* + * Register the video devices. + * + * The driver currently supports a single video device per control interface + * only. The terminal and units must match the following structure: + * + * ITT_CAMERA -> VC_PROCESSING_UNIT -> VC_EXTENSION_UNIT{0,n} -> TT_STREAMING + * + * The Extension Units, if present, must have a single input pin. The + * Processing Unit and Extension Units can be in any order. Additional + * Extension Units connected to the main chain as single-unit branches are + * also supported. + */ +static int uvc_register_video(struct uvc_device *dev) +{ + struct video_device *vdev; + struct uvc_entity *term; + int found = 0, ret; + + /* Check if the control interface matches the structure we expect. */ + list_for_each_entry(term, &dev->entities, list) { + struct uvc_streaming *streaming; + + if (UVC_ENTITY_TYPE(term) != TT_STREAMING) + continue; + + memset(&dev->video, 0, sizeof dev->video); + mutex_init(&dev->video.ctrl_mutex); + INIT_LIST_HEAD(&dev->video.iterms); + INIT_LIST_HEAD(&dev->video.extensions); + dev->video.oterm = term; + dev->video.dev = dev; + if (uvc_scan_chain(&dev->video) < 0) + continue; + + list_for_each_entry(streaming, &dev->streaming, list) { + if (streaming->header.bTerminalLink == term->id) { + dev->video.streaming = streaming; + found = 1; + break; + } + } + + if (found) + break; + } + + if (!found) { + uvc_printk(KERN_INFO, "No valid video chain found.\n"); + return -1; + } + + if (uvc_trace_param & UVC_TRACE_PROBE) { + uvc_printk(KERN_INFO, "Found a valid video chain ("); + list_for_each_entry(term, &dev->video.iterms, chain) { + printk("%d", term->id); + if (term->chain.next != &dev->video.iterms) + printk(","); + } + printk(" -> %d).\n", dev->video.oterm->id); + } + + /* Initialize the streaming interface with default streaming + * parameters. + */ + if ((ret = uvc_video_init(&dev->video)) < 0) { + uvc_printk(KERN_ERR, "Failed to initialize the device " + "(%d).\n", ret); + return ret; + } + + /* Register the device with V4L. */ + vdev = video_device_alloc(); + if (vdev == NULL) + return -1; + + /* We already hold a reference to dev->udev. The video device will be + * unregistered before the reference is released, so we don't need to + * get another one. + */ + vdev->dev = &dev->intf->dev; + vdev->type = 0; + vdev->type2 = 0; + vdev->minor = -1; + vdev->fops = &uvc_fops; + vdev->release = video_device_release; + strncpy(vdev->name, dev->name, sizeof vdev->name); + + /* Set the driver data before calling video_register_device, otherwise + * uvc_v4l2_open might race us. + * + * FIXME: usb_set_intfdata hasn't been called so far. Is that a + * problem ? Does any function which could be called here get + * a pointer to the usb_interface ? + */ + dev->video.vdev = vdev; + video_set_drvdata(vdev, &dev->video); + + if (video_register_device(vdev, VFL_TYPE_GRABBER, -1) < 0) { + dev->video.vdev = NULL; + video_device_release(vdev); + return -1; + } + + return 0; +} + +/* + * Delete the UVC device. + * + * Called by the kernel when the last reference to the uvc_device structure + * is released. + * + * Unregistering the video devices is done here because every opened instance + * must be closed before the device can be unregistered. An alternative would + * have been to use another reference count for uvc_v4l2_open/uvc_release, and + * unregister the video devices on disconnect when that reference count drops + * to zero. + * + * As this function is called after or during disconnect(), all URBs have + * already been canceled by the USB core. There is no need to kill the + * interrupt URB manually. + */ +void uvc_delete(struct kref *kref) +{ + struct uvc_device *dev = container_of(kref, struct uvc_device, kref); + struct list_head *p, *n; + + /* Unregister the video device */ + uvc_unregister_video(dev); + usb_put_intf(dev->intf); + usb_put_dev(dev->udev); + + uvc_status_cleanup(dev); + uvc_ctrl_cleanup_device(dev); + + list_for_each_safe(p, n, &dev->entities) { + struct uvc_entity *entity; + entity = list_entry(p, struct uvc_entity, list); + kfree(entity); + } + + list_for_each_safe(p, n, &dev->streaming) { + struct uvc_streaming *streaming; + streaming = list_entry(p, struct uvc_streaming, list); + usb_driver_release_interface(&uvc_driver.driver, + streaming->intf); + usb_put_intf(streaming->intf); + kfree(streaming->format); + kfree(streaming->header.bmaControls); + kfree(streaming); + } + + kfree(dev); +} + +static int uvc_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct usb_device *udev = interface_to_usbdev(intf); + struct uvc_device *dev; + int ret; + + if (id->idVendor && id->idProduct) + uvc_trace(UVC_TRACE_PROBE, "Probing known UVC device %s " + "(%04x:%04x)\n", udev->devpath, id->idVendor, + id->idProduct); + else + uvc_trace(UVC_TRACE_PROBE, "Probing generic UVC device %s\n", + udev->devpath); + + /* Allocate memory for the device and initialize it */ + if ((dev = kzalloc(sizeof *dev, GFP_KERNEL)) == NULL) + return -ENOMEM; + + INIT_LIST_HEAD(&dev->entities); + INIT_LIST_HEAD(&dev->streaming); + kref_init(&dev->kref); + + dev->udev = usb_get_dev(udev); + dev->intf = usb_get_intf(intf); + dev->intfnum = intf->cur_altsetting->desc.bInterfaceNumber; + dev->quirks = id->driver_info | uvc_quirks_param; + + if (udev->product != NULL) + strncpy(dev->name, udev->product, sizeof dev->name); + else + snprintf(dev->name, sizeof dev->name, + "UVC Camera (%04x:%04x)", + le16_to_cpu(udev->descriptor.idVendor), + le16_to_cpu(udev->descriptor.idProduct)); + + /* Parse the Video Class control descriptor */ + if (uvc_parse_control(dev) < 0) { + uvc_trace(UVC_TRACE_PROBE, "Unable to parse UVC " + "descriptors.\n"); + goto error; + } + + uvc_printk(KERN_INFO, "Found UVC %u.%02u device %s (%04x:%04x)\n", + dev->uvc_version >> 8, dev->uvc_version & 0xff, + udev->product ? udev->product : "<unnamed>", + le16_to_cpu(udev->descriptor.idVendor), + le16_to_cpu(udev->descriptor.idProduct)); + + if (uvc_quirks_param != 0) { + uvc_printk(KERN_INFO, "Forcing device quirks 0x%x by module " + "parameter for testing purpose.\n", uvc_quirks_param); + uvc_printk(KERN_INFO, "Please report required quirks to the " + "linux-uvc-devel mailing list.\n"); + } + + /* Initialize controls */ + if (uvc_ctrl_init_device(dev) < 0) + goto error; + + /* Register the video devices */ + if (uvc_register_video(dev) < 0) + goto error; + + /* Save our data pointer in the interface data */ + usb_set_intfdata(intf, dev); + + /* Initialize the interrupt URB */ + if ((ret = uvc_status_init(dev)) < 0) { + uvc_printk(KERN_INFO, "Unable to initialize the status " + "endpoint (%d), status interrupt will not be " + "supported.\n", ret); + } + + uvc_trace(UVC_TRACE_PROBE, "UVC device initialized.\n"); + return 0; + +error: + kref_put(&dev->kref, uvc_delete); + return -ENODEV; +} + +static void uvc_disconnect(struct usb_interface *intf) +{ + struct uvc_device *dev = usb_get_intfdata(intf); + + /* Set the USB interface data to NULL. This can be done outside the + * lock, as there's no other reader. + */ + usb_set_intfdata(intf, NULL); + + if (intf->cur_altsetting->desc.bInterfaceSubClass == SC_VIDEOSTREAMING) + return; + + /* uvc_v4l2_open() might race uvc_disconnect(). A static driver-wide + * lock is needed to prevent uvc_disconnect from releasing its + * reference to the uvc_device instance after uvc_v4l2_open() received + * the pointer to the device (video_devdata) but before it got the + * chance to increase the reference count (kref_get). + */ + mutex_lock(&uvc_driver.open_mutex); + + dev->state |= UVC_DEV_DISCONNECTED; + kref_put(&dev->kref, uvc_delete); + + mutex_unlock(&uvc_driver.open_mutex); +} + +static int uvc_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct uvc_device *dev = usb_get_intfdata(intf); + + uvc_trace(UVC_TRACE_SUSPEND, "Suspending interface %u\n", + intf->cur_altsetting->desc.bInterfaceNumber); + + /* Controls are cached on the fly so they don't need to be saved. */ + if (intf->cur_altsetting->desc.bInterfaceSubClass == SC_VIDEOCONTROL) + return uvc_status_suspend(dev); + + if (dev->video.streaming->intf != intf) { + uvc_trace(UVC_TRACE_SUSPEND, "Suspend: video streaming USB " + "interface mismatch.\n"); + return -EINVAL; + } + + return uvc_video_suspend(&dev->video); +} + +static int uvc_resume(struct usb_interface *intf) +{ + struct uvc_device *dev = usb_get_intfdata(intf); + int ret; + + uvc_trace(UVC_TRACE_SUSPEND, "Resuming interface %u\n", + intf->cur_altsetting->desc.bInterfaceNumber); + + if (intf->cur_altsetting->desc.bInterfaceSubClass == SC_VIDEOCONTROL) { + if ((ret = uvc_ctrl_resume_device(dev)) < 0) + return ret; + + return uvc_status_resume(dev); + } + + if (dev->video.streaming->intf != intf) { + uvc_trace(UVC_TRACE_SUSPEND, "Resume: video streaming USB " + "interface mismatch.\n"); + return -EINVAL; + } + + return uvc_video_resume(&dev->video); +} + +/* ------------------------------------------------------------------------ + * Driver initialization and cleanup + */ + +/* + * The Logitech cameras listed below have their interface class set to + * VENDOR_SPEC because they don't announce themselves as UVC devices, even + * though they are compliant. + */ +static struct usb_device_id uvc_ids[] = { + /* ALi M5606 (Clevo M540SR) */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x0402, + .idProduct = 0x5606, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_PROBE_MINMAX }, + /* Creative Live! Optia */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x041e, + .idProduct = 0x4057, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_PROBE_MINMAX }, + /* Microsoft Lifecam NX-6000 */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x045e, + .idProduct = 0x00f8, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_PROBE_MINMAX }, + /* Microsoft Lifecam VX-7000 */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x045e, + .idProduct = 0x0723, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_PROBE_MINMAX }, + /* Logitech Quickcam Fusion */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x046d, + .idProduct = 0x08c1, + .bInterfaceClass = USB_CLASS_VENDOR_SPEC, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0 }, + /* Logitech Quickcam Orbit MP */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x046d, + .idProduct = 0x08c2, + .bInterfaceClass = USB_CLASS_VENDOR_SPEC, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0 }, + /* Logitech Quickcam Pro for Notebook */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x046d, + .idProduct = 0x08c3, + .bInterfaceClass = USB_CLASS_VENDOR_SPEC, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0 }, + /* Logitech Quickcam Pro 5000 */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x046d, + .idProduct = 0x08c5, + .bInterfaceClass = USB_CLASS_VENDOR_SPEC, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0 }, + /* Logitech Quickcam OEM Dell Notebook */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x046d, + .idProduct = 0x08c6, + .bInterfaceClass = USB_CLASS_VENDOR_SPEC, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0 }, + /* Logitech Quickcam OEM Cisco VT Camera II */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x046d, + .idProduct = 0x08c7, + .bInterfaceClass = USB_CLASS_VENDOR_SPEC, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0 }, + /* Apple Built-In iSight */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x05ac, + .idProduct = 0x8501, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_PROBE_MINMAX + | UVC_QUIRK_BUILTIN_ISIGHT }, + /* Genesys Logic USB 2.0 PC Camera */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x05e3, + .idProduct = 0x0505, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_STREAM_NO_FID }, + /* Silicon Motion SM371 */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x090c, + .idProduct = 0xb371, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_PROBE_MINMAX }, + /* MT6227 */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x0e8d, + .idProduct = 0x0004, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_PROBE_MINMAX }, + /* Syntek (HP Spartan) */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x174f, + .idProduct = 0x5212, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_STREAM_NO_FID }, + /* Syntek (Asus U3S) */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x174f, + .idProduct = 0x8a33, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_STREAM_NO_FID }, + /* Ecamm Pico iMage */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x18cd, + .idProduct = 0xcafe, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_PROBE_EXTRAFIELDS }, + /* Bodelin ProScopeHR */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_DEV_HI + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x19ab, + .idProduct = 0x1000, + .bcdDevice_hi = 0x0126, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_STATUS_INTERVAL }, + /* SiGma Micro USB Web Camera */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x1c4f, + .idProduct = 0x3000, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_PROBE_MINMAX + | UVC_QUIRK_IGNORE_SELECTOR_UNIT}, + /* Acer OEM Webcam - Unknown vendor */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x5986, + .idProduct = 0x0100, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_PROBE_MINMAX }, + /* Packard Bell OEM Webcam */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x5986, + .idProduct = 0x0101, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_PROBE_MINMAX }, + /* Acer Crystal Eye webcam */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x5986, + .idProduct = 0x0102, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_PROBE_MINMAX }, + /* Acer OrbiCam - Unknown vendor */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x5986, + .idProduct = 0x0200, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_PROBE_MINMAX }, + /* Generic USB Video Class */ + { USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, 0) }, + {} +}; + +MODULE_DEVICE_TABLE(usb, uvc_ids); + +struct uvc_driver uvc_driver = { + .driver = { + .name = "uvcvideo", + .probe = uvc_probe, + .disconnect = uvc_disconnect, + .suspend = uvc_suspend, + .resume = uvc_resume, + .id_table = uvc_ids, + .supports_autosuspend = 1, + }, +}; + +static int __init uvc_init(void) +{ + int result; + + INIT_LIST_HEAD(&uvc_driver.devices); + INIT_LIST_HEAD(&uvc_driver.controls); + mutex_init(&uvc_driver.open_mutex); + mutex_init(&uvc_driver.ctrl_mutex); + + uvc_ctrl_init(); + + result = usb_register(&uvc_driver.driver); + if (result == 0) + printk(KERN_INFO DRIVER_DESC " (" DRIVER_VERSION ")\n"); + return result; +} + +static void __exit uvc_cleanup(void) +{ + usb_deregister(&uvc_driver.driver); +} + +module_init(uvc_init); +module_exit(uvc_cleanup); + +module_param_named(quirks, uvc_quirks_param, uint, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(quirks, "Forced device quirks"); +module_param_named(trace, uvc_trace_param, uint, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(trace, "Trace level bitmask"); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRIVER_VERSION); diff --git a/drivers/media/video/uvc/uvc_isight.c b/drivers/media/video/uvc/uvc_isight.c new file mode 100644 index 00000000000..37bdefdbead --- /dev/null +++ b/drivers/media/video/uvc/uvc_isight.c @@ -0,0 +1,134 @@ +/* + * uvc_isight.c -- USB Video Class driver - iSight support + * + * Copyright (C) 2006-2007 + * Ivan N. Zlatev <contact@i-nz.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/usb.h> +#include <linux/kernel.h> +#include <linux/mm.h> + +#include "uvcvideo.h" + +/* Built-in iSight webcams implements most of UVC 1.0 except a + * different packet format. Instead of sending a header at the + * beginning of each isochronous transfer payload, the webcam sends a + * single header per image (on its own in a packet), followed by + * packets containing data only. + * + * Offset Size (bytes) Description + * ------------------------------------------------------------------ + * 0x00 1 Header length + * 0x01 1 Flags (UVC-compliant) + * 0x02 4 Always equal to '11223344' + * 0x06 8 Always equal to 'deadbeefdeadface' + * 0x0e 16 Unknown + * + * The header can be prefixed by an optional, unknown-purpose byte. + */ + +static int isight_decode(struct uvc_video_queue *queue, struct uvc_buffer *buf, + const __u8 *data, unsigned int len) +{ + static const __u8 hdr[] = { + 0x11, 0x22, 0x33, 0x44, + 0xde, 0xad, 0xbe, 0xef, + 0xde, 0xad, 0xfa, 0xce + }; + + unsigned int maxlen, nbytes; + __u8 *mem; + int is_header = 0; + + if (buf == NULL) + return 0; + + if ((len >= 14 && memcmp(&data[2], hdr, 12) == 0) || + (len >= 15 && memcmp(&data[3], hdr, 12) == 0)) { + uvc_trace(UVC_TRACE_FRAME, "iSight header found\n"); + is_header = 1; + } + + /* Synchronize to the input stream by waiting for a header packet. */ + if (buf->state != UVC_BUF_STATE_ACTIVE) { + if (!is_header) { + uvc_trace(UVC_TRACE_FRAME, "Dropping packet (out of " + "sync).\n"); + return 0; + } + + buf->state = UVC_BUF_STATE_ACTIVE; + } + + /* Mark the buffer as done if we're at the beginning of a new frame. + * + * Empty buffers (bytesused == 0) don't trigger end of frame detection + * as it doesn't make sense to return an empty buffer. + */ + if (is_header && buf->buf.bytesused != 0) { + buf->state = UVC_BUF_STATE_DONE; + return -EAGAIN; + } + + /* Copy the video data to the buffer. Skip header packets, as they + * contain no data. + */ + if (!is_header) { + maxlen = buf->buf.length - buf->buf.bytesused; + mem = queue->mem + buf->buf.m.offset + buf->buf.bytesused; + nbytes = min(len, maxlen); + memcpy(mem, data, nbytes); + buf->buf.bytesused += nbytes; + + if (len > maxlen || buf->buf.bytesused == buf->buf.length) { + uvc_trace(UVC_TRACE_FRAME, "Frame complete " + "(overflow).\n"); + buf->state = UVC_BUF_STATE_DONE; + } + } + + return 0; +} + +void uvc_video_decode_isight(struct urb *urb, struct uvc_video_device *video, + struct uvc_buffer *buf) +{ + int ret, i; + + for (i = 0; i < urb->number_of_packets; ++i) { + if (urb->iso_frame_desc[i].status < 0) { + uvc_trace(UVC_TRACE_FRAME, "USB isochronous frame " + "lost (%d).\n", + urb->iso_frame_desc[i].status); + } + + /* Decode the payload packet. + * uvc_video_decode is entered twice when a frame transition + * has been detected because the end of frame can only be + * reliably detected when the first packet of the new frame + * is processed. The first pass detects the transition and + * closes the previous frame's buffer, the second pass + * processes the data of the first payload of the new frame. + */ + do { + ret = isight_decode(&video->queue, buf, + urb->transfer_buffer + + urb->iso_frame_desc[i].offset, + urb->iso_frame_desc[i].actual_length); + + if (buf == NULL) + break; + + if (buf->state == UVC_BUF_STATE_DONE || + buf->state == UVC_BUF_STATE_ERROR) + buf = uvc_queue_next_buffer(&video->queue, buf); + } while (ret == -EAGAIN); + } +} diff --git a/drivers/media/video/uvc/uvc_queue.c b/drivers/media/video/uvc/uvc_queue.c new file mode 100644 index 00000000000..0923f0e3b3d --- /dev/null +++ b/drivers/media/video/uvc/uvc_queue.c @@ -0,0 +1,477 @@ +/* + * uvc_queue.c -- USB Video Class driver - Buffers management + * + * Copyright (C) 2005-2008 + * Laurent Pinchart (laurent.pinchart@skynet.be) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/version.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/usb.h> +#include <linux/videodev2.h> +#include <linux/vmalloc.h> +#include <linux/wait.h> +#include <asm/atomic.h> + +#include "uvcvideo.h" + +/* ------------------------------------------------------------------------ + * Video buffers queue management. + * + * Video queues is initialized by uvc_queue_init(). The function performs + * basic initialization of the uvc_video_queue struct and never fails. + * + * Video buffer allocation and freeing are performed by uvc_alloc_buffers and + * uvc_free_buffers respectively. The former acquires the video queue lock, + * while the later must be called with the lock held (so that allocation can + * free previously allocated buffers). Trying to free buffers that are mapped + * to user space will return -EBUSY. + * + * Video buffers are managed using two queues. However, unlike most USB video + * drivers which use an in queue and an out queue, we use a main queue which + * holds all queued buffers (both 'empty' and 'done' buffers), and an irq + * queue which holds empty buffers. This design (copied from video-buf) + * minimizes locking in interrupt, as only one queue is shared between + * interrupt and user contexts. + * + * Use cases + * --------- + * + * Unless stated otherwise, all operations which modify the irq buffers queue + * are protected by the irq spinlock. + * + * 1. The user queues the buffers, starts streaming and dequeues a buffer. + * + * The buffers are added to the main and irq queues. Both operations are + * protected by the queue lock, and the latert is protected by the irq + * spinlock as well. + * + * The completion handler fetches a buffer from the irq queue and fills it + * with video data. If no buffer is available (irq queue empty), the handler + * returns immediately. + * + * When the buffer is full, the completion handler removes it from the irq + * queue, marks it as ready (UVC_BUF_STATE_DONE) and wake its wait queue. + * At that point, any process waiting on the buffer will be woken up. If a + * process tries to dequeue a buffer after it has been marked ready, the + * dequeing will succeed immediately. + * + * 2. Buffers are queued, user is waiting on a buffer and the device gets + * disconnected. + * + * When the device is disconnected, the kernel calls the completion handler + * with an appropriate status code. The handler marks all buffers in the + * irq queue as being erroneous (UVC_BUF_STATE_ERROR) and wakes them up so + * that any process waiting on a buffer gets woken up. + * + * Waking up up the first buffer on the irq list is not enough, as the + * process waiting on the buffer might restart the dequeue operation + * immediately. + * + */ + +void uvc_queue_init(struct uvc_video_queue *queue) +{ + mutex_init(&queue->mutex); + spin_lock_init(&queue->irqlock); + INIT_LIST_HEAD(&queue->mainqueue); + INIT_LIST_HEAD(&queue->irqqueue); +} + +/* + * Allocate the video buffers. + * + * Pages are reserved to make sure they will not be swaped, as they will be + * filled in URB completion handler. + * + * Buffers will be individually mapped, so they must all be page aligned. + */ +int uvc_alloc_buffers(struct uvc_video_queue *queue, unsigned int nbuffers, + unsigned int buflength) +{ + unsigned int bufsize = PAGE_ALIGN(buflength); + unsigned int i; + void *mem = NULL; + int ret; + + if (nbuffers > UVC_MAX_VIDEO_BUFFERS) + nbuffers = UVC_MAX_VIDEO_BUFFERS; + + mutex_lock(&queue->mutex); + + if ((ret = uvc_free_buffers(queue)) < 0) + goto done; + + /* Bail out if no buffers should be allocated. */ + if (nbuffers == 0) + goto done; + + /* Decrement the number of buffers until allocation succeeds. */ + for (; nbuffers > 0; --nbuffers) { + mem = vmalloc_32(nbuffers * bufsize); + if (mem != NULL) + break; + } + + if (mem == NULL) { + ret = -ENOMEM; + goto done; + } + + for (i = 0; i < nbuffers; ++i) { + memset(&queue->buffer[i], 0, sizeof queue->buffer[i]); + queue->buffer[i].buf.index = i; + queue->buffer[i].buf.m.offset = i * bufsize; + queue->buffer[i].buf.length = buflength; + queue->buffer[i].buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + queue->buffer[i].buf.sequence = 0; + queue->buffer[i].buf.field = V4L2_FIELD_NONE; + queue->buffer[i].buf.memory = V4L2_MEMORY_MMAP; + queue->buffer[i].buf.flags = 0; + init_waitqueue_head(&queue->buffer[i].wait); + } + + queue->mem = mem; + queue->count = nbuffers; + queue->buf_size = bufsize; + ret = nbuffers; + +done: + mutex_unlock(&queue->mutex); + return ret; +} + +/* + * Free the video buffers. + * + * This function must be called with the queue lock held. + */ +int uvc_free_buffers(struct uvc_video_queue *queue) +{ + unsigned int i; + + for (i = 0; i < queue->count; ++i) { + if (queue->buffer[i].vma_use_count != 0) + return -EBUSY; + } + + if (queue->count) { + vfree(queue->mem); + queue->count = 0; + } + + return 0; +} + +static void __uvc_query_buffer(struct uvc_buffer *buf, + struct v4l2_buffer *v4l2_buf) +{ + memcpy(v4l2_buf, &buf->buf, sizeof *v4l2_buf); + + if (buf->vma_use_count) + v4l2_buf->flags |= V4L2_BUF_FLAG_MAPPED; + + switch (buf->state) { + case UVC_BUF_STATE_ERROR: + case UVC_BUF_STATE_DONE: + v4l2_buf->flags |= V4L2_BUF_FLAG_DONE; + break; + case UVC_BUF_STATE_QUEUED: + case UVC_BUF_STATE_ACTIVE: + v4l2_buf->flags |= V4L2_BUF_FLAG_QUEUED; + break; + case UVC_BUF_STATE_IDLE: + default: + break; + } +} + +int uvc_query_buffer(struct uvc_video_queue *queue, + struct v4l2_buffer *v4l2_buf) +{ + int ret = 0; + + mutex_lock(&queue->mutex); + if (v4l2_buf->index >= queue->count) { + ret = -EINVAL; + goto done; + } + + __uvc_query_buffer(&queue->buffer[v4l2_buf->index], v4l2_buf); + +done: + mutex_unlock(&queue->mutex); + return ret; +} + +/* + * Queue a video buffer. Attempting to queue a buffer that has already been + * queued will return -EINVAL. + */ +int uvc_queue_buffer(struct uvc_video_queue *queue, + struct v4l2_buffer *v4l2_buf) +{ + struct uvc_buffer *buf; + unsigned long flags; + int ret = 0; + + uvc_trace(UVC_TRACE_CAPTURE, "Queuing buffer %u.\n", v4l2_buf->index); + + if (v4l2_buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + v4l2_buf->memory != V4L2_MEMORY_MMAP) { + uvc_trace(UVC_TRACE_CAPTURE, "[E] Invalid buffer type (%u) " + "and/or memory (%u).\n", v4l2_buf->type, + v4l2_buf->memory); + return -EINVAL; + } + + mutex_lock(&queue->mutex); + if (v4l2_buf->index >= queue->count) { + uvc_trace(UVC_TRACE_CAPTURE, "[E] Out of range index.\n"); + ret = -EINVAL; + goto done; + } + + buf = &queue->buffer[v4l2_buf->index]; + if (buf->state != UVC_BUF_STATE_IDLE) { + uvc_trace(UVC_TRACE_CAPTURE, "[E] Invalid buffer state " + "(%u).\n", buf->state); + ret = -EINVAL; + goto done; + } + + spin_lock_irqsave(&queue->irqlock, flags); + if (queue->flags & UVC_QUEUE_DISCONNECTED) { + spin_unlock_irqrestore(&queue->irqlock, flags); + ret = -ENODEV; + goto done; + } + buf->state = UVC_BUF_STATE_QUEUED; + buf->buf.bytesused = 0; + list_add_tail(&buf->stream, &queue->mainqueue); + list_add_tail(&buf->queue, &queue->irqqueue); + spin_unlock_irqrestore(&queue->irqlock, flags); + +done: + mutex_unlock(&queue->mutex); + return ret; +} + +static int uvc_queue_waiton(struct uvc_buffer *buf, int nonblocking) +{ + if (nonblocking) { + return (buf->state != UVC_BUF_STATE_QUEUED && + buf->state != UVC_BUF_STATE_ACTIVE) + ? 0 : -EAGAIN; + } + + return wait_event_interruptible(buf->wait, + buf->state != UVC_BUF_STATE_QUEUED && + buf->state != UVC_BUF_STATE_ACTIVE); +} + +/* + * Dequeue a video buffer. If nonblocking is false, block until a buffer is + * available. + */ +int uvc_dequeue_buffer(struct uvc_video_queue *queue, + struct v4l2_buffer *v4l2_buf, int nonblocking) +{ + struct uvc_buffer *buf; + int ret = 0; + + if (v4l2_buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + v4l2_buf->memory != V4L2_MEMORY_MMAP) { + uvc_trace(UVC_TRACE_CAPTURE, "[E] Invalid buffer type (%u) " + "and/or memory (%u).\n", v4l2_buf->type, + v4l2_buf->memory); + return -EINVAL; + } + + mutex_lock(&queue->mutex); + if (list_empty(&queue->mainqueue)) { + uvc_trace(UVC_TRACE_CAPTURE, "[E] Empty buffer queue.\n"); + ret = -EINVAL; + goto done; + } + + buf = list_first_entry(&queue->mainqueue, struct uvc_buffer, stream); + if ((ret = uvc_queue_waiton(buf, nonblocking)) < 0) + goto done; + + uvc_trace(UVC_TRACE_CAPTURE, "Dequeuing buffer %u (%u, %u bytes).\n", + buf->buf.index, buf->state, buf->buf.bytesused); + + switch (buf->state) { + case UVC_BUF_STATE_ERROR: + uvc_trace(UVC_TRACE_CAPTURE, "[W] Corrupted data " + "(transmission error).\n"); + ret = -EIO; + case UVC_BUF_STATE_DONE: + buf->state = UVC_BUF_STATE_IDLE; + break; + + case UVC_BUF_STATE_IDLE: + case UVC_BUF_STATE_QUEUED: + case UVC_BUF_STATE_ACTIVE: + default: + uvc_trace(UVC_TRACE_CAPTURE, "[E] Invalid buffer state %u " + "(driver bug?).\n", buf->state); + ret = -EINVAL; + goto done; + } + + list_del(&buf->stream); + __uvc_query_buffer(buf, v4l2_buf); + +done: + mutex_unlock(&queue->mutex); + return ret; +} + +/* + * Poll the video queue. + * + * This function implements video queue polling and is intended to be used by + * the device poll handler. + */ +unsigned int uvc_queue_poll(struct uvc_video_queue *queue, struct file *file, + poll_table *wait) +{ + struct uvc_buffer *buf; + unsigned int mask = 0; + + mutex_lock(&queue->mutex); + if (list_empty(&queue->mainqueue)) { + mask |= POLLERR; + goto done; + } + buf = list_first_entry(&queue->mainqueue, struct uvc_buffer, stream); + + poll_wait(file, &buf->wait, wait); + if (buf->state == UVC_BUF_STATE_DONE || + buf->state == UVC_BUF_STATE_ERROR) + mask |= POLLIN | POLLRDNORM; + +done: + mutex_unlock(&queue->mutex); + return mask; +} + +/* + * Enable or disable the video buffers queue. + * + * The queue must be enabled before starting video acquisition and must be + * disabled after stopping it. This ensures that the video buffers queue + * state can be properly initialized before buffers are accessed from the + * interrupt handler. + * + * Enabling the video queue initializes parameters (such as sequence number, + * sync pattern, ...). If the queue is already enabled, return -EBUSY. + * + * Disabling the video queue cancels the queue and removes all buffers from + * the main queue. + * + * This function can't be called from interrupt context. Use + * uvc_queue_cancel() instead. + */ +int uvc_queue_enable(struct uvc_video_queue *queue, int enable) +{ + unsigned int i; + int ret = 0; + + mutex_lock(&queue->mutex); + if (enable) { + if (uvc_queue_streaming(queue)) { + ret = -EBUSY; + goto done; + } + queue->sequence = 0; + queue->flags |= UVC_QUEUE_STREAMING; + } else { + uvc_queue_cancel(queue, 0); + INIT_LIST_HEAD(&queue->mainqueue); + + for (i = 0; i < queue->count; ++i) + queue->buffer[i].state = UVC_BUF_STATE_IDLE; + + queue->flags &= ~UVC_QUEUE_STREAMING; + } + +done: + mutex_unlock(&queue->mutex); + return ret; +} + +/* + * Cancel the video buffers queue. + * + * Cancelling the queue marks all buffers on the irq queue as erroneous, + * wakes them up and remove them from the queue. + * + * If the disconnect parameter is set, further calls to uvc_queue_buffer will + * fail with -ENODEV. + * + * This function acquires the irq spinlock and can be called from interrupt + * context. + */ +void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect) +{ + struct uvc_buffer *buf; + unsigned long flags; + + spin_lock_irqsave(&queue->irqlock, flags); + while (!list_empty(&queue->irqqueue)) { + buf = list_first_entry(&queue->irqqueue, struct uvc_buffer, + queue); + list_del(&buf->queue); + buf->state = UVC_BUF_STATE_ERROR; + wake_up(&buf->wait); + } + /* This must be protected by the irqlock spinlock to avoid race + * conditions between uvc_queue_buffer and the disconnection event that + * could result in an interruptible wait in uvc_dequeue_buffer. Do not + * blindly replace this logic by checking for the UVC_DEV_DISCONNECTED + * state outside the queue code. + */ + if (disconnect) + queue->flags |= UVC_QUEUE_DISCONNECTED; + spin_unlock_irqrestore(&queue->irqlock, flags); +} + +struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue, + struct uvc_buffer *buf) +{ + struct uvc_buffer *nextbuf; + unsigned long flags; + + if ((queue->flags & UVC_QUEUE_DROP_INCOMPLETE) && + buf->buf.length != buf->buf.bytesused) { + buf->state = UVC_BUF_STATE_QUEUED; + buf->buf.bytesused = 0; + return buf; + } + + spin_lock_irqsave(&queue->irqlock, flags); + list_del(&buf->queue); + if (!list_empty(&queue->irqqueue)) + nextbuf = list_first_entry(&queue->irqqueue, struct uvc_buffer, + queue); + else + nextbuf = NULL; + spin_unlock_irqrestore(&queue->irqlock, flags); + + buf->buf.sequence = queue->sequence++; + do_gettimeofday(&buf->buf.timestamp); + + wake_up(&buf->wait); + return nextbuf; +} diff --git a/drivers/media/video/uvc/uvc_status.c b/drivers/media/video/uvc/uvc_status.c new file mode 100644 index 00000000000..be9084e5eac --- /dev/null +++ b/drivers/media/video/uvc/uvc_status.c @@ -0,0 +1,207 @@ +/* + * uvc_status.c -- USB Video Class driver - Status endpoint + * + * Copyright (C) 2007-2008 + * Laurent Pinchart (laurent.pinchart@skynet.be) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/version.h> +#include <linux/input.h> +#include <linux/usb.h> +#include <linux/usb/input.h> + +#include "uvcvideo.h" + +/* -------------------------------------------------------------------------- + * Input device + */ +static int uvc_input_init(struct uvc_device *dev) +{ + struct usb_device *udev = dev->udev; + struct input_dev *input; + char *phys = NULL; + int ret; + + input = input_allocate_device(); + if (input == NULL) + return -ENOMEM; + + phys = kmalloc(6 + strlen(udev->bus->bus_name) + strlen(udev->devpath), + GFP_KERNEL); + if (phys == NULL) { + ret = -ENOMEM; + goto error; + } + sprintf(phys, "usb-%s-%s", udev->bus->bus_name, udev->devpath); + + input->name = dev->name; + input->phys = phys; + usb_to_input_id(udev, &input->id); + input->dev.parent = &dev->intf->dev; + + set_bit(EV_KEY, input->evbit); + set_bit(BTN_0, input->keybit); + + if ((ret = input_register_device(input)) < 0) + goto error; + + dev->input = input; + return 0; + +error: + input_free_device(input); + kfree(phys); + return ret; +} + +static void uvc_input_cleanup(struct uvc_device *dev) +{ + if (dev->input) + input_unregister_device(dev->input); +} + +/* -------------------------------------------------------------------------- + * Status interrupt endpoint + */ +static void uvc_event_streaming(struct uvc_device *dev, __u8 *data, int len) +{ + if (len < 3) { + uvc_trace(UVC_TRACE_STATUS, "Invalid streaming status event " + "received.\n"); + return; + } + + if (data[2] == 0) { + if (len < 4) + return; + uvc_trace(UVC_TRACE_STATUS, "Button (intf %u) %s len %d\n", + data[1], data[3] ? "pressed" : "released", len); + if (dev->input) + input_report_key(dev->input, BTN_0, data[3]); + } else { + uvc_trace(UVC_TRACE_STATUS, "Stream %u error event %02x %02x " + "len %d.\n", data[1], data[2], data[3], len); + } +} + +static void uvc_event_control(struct uvc_device *dev, __u8 *data, int len) +{ + char *attrs[3] = { "value", "info", "failure" }; + + if (len < 6 || data[2] != 0 || data[4] > 2) { + uvc_trace(UVC_TRACE_STATUS, "Invalid control status event " + "received.\n"); + return; + } + + uvc_trace(UVC_TRACE_STATUS, "Control %u/%u %s change len %d.\n", + data[1], data[3], attrs[data[4]], len); +} + +static void uvc_status_complete(struct urb *urb) +{ + struct uvc_device *dev = urb->context; + int len, ret; + + switch (urb->status) { + case 0: + break; + + case -ENOENT: /* usb_kill_urb() called. */ + case -ECONNRESET: /* usb_unlink_urb() called. */ + case -ESHUTDOWN: /* The endpoint is being disabled. */ + case -EPROTO: /* Device is disconnected (reported by some + * host controller). */ + return; + + default: + uvc_printk(KERN_WARNING, "Non-zero status (%d) in status " + "completion handler.\n", urb->status); + return; + } + + len = urb->actual_length; + if (len > 0) { + switch (dev->status[0] & 0x0f) { + case UVC_STATUS_TYPE_CONTROL: + uvc_event_control(dev, dev->status, len); + break; + + case UVC_STATUS_TYPE_STREAMING: + uvc_event_streaming(dev, dev->status, len); + break; + + default: + uvc_printk(KERN_INFO, "unknown event type %u.\n", + dev->status[0]); + break; + } + } + + /* Resubmit the URB. */ + urb->interval = dev->int_ep->desc.bInterval; + if ((ret = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { + uvc_printk(KERN_ERR, "Failed to resubmit status URB (%d).\n", + ret); + } +} + +int uvc_status_init(struct uvc_device *dev) +{ + struct usb_host_endpoint *ep = dev->int_ep; + unsigned int pipe; + int interval; + + if (ep == NULL) + return 0; + + uvc_input_init(dev); + + dev->int_urb = usb_alloc_urb(0, GFP_KERNEL); + if (dev->int_urb == NULL) + return -ENOMEM; + + pipe = usb_rcvintpipe(dev->udev, ep->desc.bEndpointAddress); + + /* For high-speed interrupt endpoints, the bInterval value is used as + * an exponent of two. Some developers forgot about it. + */ + interval = ep->desc.bInterval; + if (interval > 16 && dev->udev->speed == USB_SPEED_HIGH && + (dev->quirks & UVC_QUIRK_STATUS_INTERVAL)) + interval = fls(interval) - 1; + + usb_fill_int_urb(dev->int_urb, dev->udev, pipe, + dev->status, sizeof dev->status, uvc_status_complete, + dev, interval); + + return usb_submit_urb(dev->int_urb, GFP_KERNEL); +} + +void uvc_status_cleanup(struct uvc_device *dev) +{ + usb_kill_urb(dev->int_urb); + usb_free_urb(dev->int_urb); + uvc_input_cleanup(dev); +} + +int uvc_status_suspend(struct uvc_device *dev) +{ + usb_kill_urb(dev->int_urb); + return 0; +} + +int uvc_status_resume(struct uvc_device *dev) +{ + if (dev->int_urb == NULL) + return 0; + + return usb_submit_urb(dev->int_urb, GFP_KERNEL); +} diff --git a/drivers/media/video/uvc/uvc_v4l2.c b/drivers/media/video/uvc/uvc_v4l2.c new file mode 100644 index 00000000000..2e0a66575bb --- /dev/null +++ b/drivers/media/video/uvc/uvc_v4l2.c @@ -0,0 +1,1105 @@ +/* + * uvc_v4l2.c -- USB Video Class driver - V4L2 API + * + * Copyright (C) 2005-2008 + * Laurent Pinchart (laurent.pinchart@skynet.be) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/version.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/usb.h> +#include <linux/videodev2.h> +#include <linux/vmalloc.h> +#include <linux/mm.h> +#include <linux/wait.h> +#include <asm/atomic.h> + +#include <media/v4l2-common.h> + +#include "uvcvideo.h" + +/* ------------------------------------------------------------------------ + * V4L2 interface + */ + +/* + * Mapping V4L2 controls to UVC controls can be straighforward if done well. + * Most of the UVC controls exist in V4L2, and can be mapped directly. Some + * must be grouped (for instance the Red Balance, Blue Balance and Do White + * Balance V4L2 controls use the White Balance Component UVC control) or + * otherwise translated. The approach we take here is to use a translation + * table for the controls which can be mapped directly, and handle the others + * manually. + */ +static int uvc_v4l2_query_menu(struct uvc_video_device *video, + struct v4l2_querymenu *query_menu) +{ + struct uvc_menu_info *menu_info; + struct uvc_control_mapping *mapping; + struct uvc_control *ctrl; + + ctrl = uvc_find_control(video, query_menu->id, &mapping); + if (ctrl == NULL || mapping->v4l2_type != V4L2_CTRL_TYPE_MENU) + return -EINVAL; + + if (query_menu->index >= mapping->menu_count) + return -EINVAL; + + menu_info = &mapping->menu_info[query_menu->index]; + strncpy(query_menu->name, menu_info->name, 32); + return 0; +} + +/* + * Find the frame interval closest to the requested frame interval for the + * given frame format and size. This should be done by the device as part of + * the Video Probe and Commit negotiation, but some hardware don't implement + * that feature. + */ +static __u32 uvc_try_frame_interval(struct uvc_frame *frame, __u32 interval) +{ + unsigned int i; + + if (frame->bFrameIntervalType) { + __u32 best = -1, dist; + + for (i = 0; i < frame->bFrameIntervalType; ++i) { + dist = interval > frame->dwFrameInterval[i] + ? interval - frame->dwFrameInterval[i] + : frame->dwFrameInterval[i] - interval; + + if (dist > best) + break; + + best = dist; + } + + interval = frame->dwFrameInterval[i-1]; + } else { + const __u32 min = frame->dwFrameInterval[0]; + const __u32 max = frame->dwFrameInterval[1]; + const __u32 step = frame->dwFrameInterval[2]; + + interval = min + (interval - min + step/2) / step * step; + if (interval > max) + interval = max; + } + + return interval; +} + +static int uvc_v4l2_try_format(struct uvc_video_device *video, + struct v4l2_format *fmt, struct uvc_streaming_control *probe, + struct uvc_format **uvc_format, struct uvc_frame **uvc_frame) +{ + struct uvc_format *format = NULL; + struct uvc_frame *frame = NULL; + __u16 rw, rh; + unsigned int d, maxd; + unsigned int i; + __u32 interval; + int ret = 0; + __u8 *fcc; + + if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + fcc = (__u8 *)&fmt->fmt.pix.pixelformat; + uvc_trace(UVC_TRACE_FORMAT, "Trying format 0x%08x (%c%c%c%c): %ux%u.\n", + fmt->fmt.pix.pixelformat, + fcc[0], fcc[1], fcc[2], fcc[3], + fmt->fmt.pix.width, fmt->fmt.pix.height); + + /* Check if the hardware supports the requested format. */ + for (i = 0; i < video->streaming->nformats; ++i) { + format = &video->streaming->format[i]; + if (format->fcc == fmt->fmt.pix.pixelformat) + break; + } + + if (format == NULL || format->fcc != fmt->fmt.pix.pixelformat) { + uvc_trace(UVC_TRACE_FORMAT, "Unsupported format 0x%08x.\n", + fmt->fmt.pix.pixelformat); + return -EINVAL; + } + + /* Find the closest image size. The distance between image sizes is + * the size in pixels of the non-overlapping regions between the + * requested size and the frame-specified size. + */ + rw = fmt->fmt.pix.width; + rh = fmt->fmt.pix.height; + maxd = (unsigned int)-1; + + for (i = 0; i < format->nframes; ++i) { + __u16 w = format->frame[i].wWidth; + __u16 h = format->frame[i].wHeight; + + d = min(w, rw) * min(h, rh); + d = w*h + rw*rh - 2*d; + if (d < maxd) { + maxd = d; + frame = &format->frame[i]; + } + + if (maxd == 0) + break; + } + + if (frame == NULL) { + uvc_trace(UVC_TRACE_FORMAT, "Unsupported size %ux%u.\n", + fmt->fmt.pix.width, fmt->fmt.pix.height); + return -EINVAL; + } + + /* Use the default frame interval. */ + interval = frame->dwDefaultFrameInterval; + uvc_trace(UVC_TRACE_FORMAT, "Using default frame interval %u.%u us " + "(%u.%u fps).\n", interval/10, interval%10, 10000000/interval, + (100000000/interval)%10); + + /* Set the format index, frame index and frame interval. */ + memset(probe, 0, sizeof *probe); + probe->bmHint = 1; /* dwFrameInterval */ + probe->bFormatIndex = format->index; + probe->bFrameIndex = frame->bFrameIndex; + probe->dwFrameInterval = uvc_try_frame_interval(frame, interval); + /* Some webcams stall the probe control set request when the + * dwMaxVideoFrameSize field is set to zero. The UVC specification + * clearly states that the field is read-only from the host, so this + * is a webcam bug. Set dwMaxVideoFrameSize to the value reported by + * the webcam to work around the problem. + * + * The workaround could probably be enabled for all webcams, so the + * quirk can be removed if needed. It's currently useful to detect + * webcam bugs and fix them before they hit the market (providing + * developers test their webcams with the Linux driver as well as with + * the Windows driver). + */ + if (video->dev->quirks & UVC_QUIRK_PROBE_EXTRAFIELDS) + probe->dwMaxVideoFrameSize = + video->streaming->ctrl.dwMaxVideoFrameSize; + + /* Probe the device */ + if ((ret = uvc_probe_video(video, probe)) < 0) + goto done; + + fmt->fmt.pix.width = frame->wWidth; + fmt->fmt.pix.height = frame->wHeight; + fmt->fmt.pix.field = V4L2_FIELD_NONE; + fmt->fmt.pix.bytesperline = format->bpp * frame->wWidth / 8; + fmt->fmt.pix.sizeimage = probe->dwMaxVideoFrameSize; + fmt->fmt.pix.colorspace = format->colorspace; + fmt->fmt.pix.priv = 0; + + if (uvc_format != NULL) + *uvc_format = format; + if (uvc_frame != NULL) + *uvc_frame = frame; + +done: + return ret; +} + +static int uvc_v4l2_get_format(struct uvc_video_device *video, + struct v4l2_format *fmt) +{ + struct uvc_format *format = video->streaming->cur_format; + struct uvc_frame *frame = video->streaming->cur_frame; + + if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + if (format == NULL || frame == NULL) + return -EINVAL; + + fmt->fmt.pix.pixelformat = format->fcc; + fmt->fmt.pix.width = frame->wWidth; + fmt->fmt.pix.height = frame->wHeight; + fmt->fmt.pix.field = V4L2_FIELD_NONE; + fmt->fmt.pix.bytesperline = format->bpp * frame->wWidth / 8; + fmt->fmt.pix.sizeimage = video->streaming->ctrl.dwMaxVideoFrameSize; + fmt->fmt.pix.colorspace = format->colorspace; + fmt->fmt.pix.priv = 0; + + return 0; +} + +static int uvc_v4l2_set_format(struct uvc_video_device *video, + struct v4l2_format *fmt) +{ + struct uvc_streaming_control probe; + struct uvc_format *format; + struct uvc_frame *frame; + int ret; + + if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + if (uvc_queue_streaming(&video->queue)) + return -EBUSY; + + ret = uvc_v4l2_try_format(video, fmt, &probe, &format, &frame); + if (ret < 0) + return ret; + + if ((ret = uvc_set_video_ctrl(video, &probe, 0)) < 0) + return ret; + + memcpy(&video->streaming->ctrl, &probe, sizeof probe); + video->streaming->cur_format = format; + video->streaming->cur_frame = frame; + + return 0; +} + +static int uvc_v4l2_get_streamparm(struct uvc_video_device *video, + struct v4l2_streamparm *parm) +{ + uint32_t numerator, denominator; + + if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + numerator = video->streaming->ctrl.dwFrameInterval; + denominator = 10000000; + uvc_simplify_fraction(&numerator, &denominator, 8, 333); + + memset(parm, 0, sizeof *parm); + parm->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME; + parm->parm.capture.capturemode = 0; + parm->parm.capture.timeperframe.numerator = numerator; + parm->parm.capture.timeperframe.denominator = denominator; + parm->parm.capture.extendedmode = 0; + parm->parm.capture.readbuffers = 0; + + return 0; +} + +static int uvc_v4l2_set_streamparm(struct uvc_video_device *video, + struct v4l2_streamparm *parm) +{ + struct uvc_frame *frame = video->streaming->cur_frame; + struct uvc_streaming_control probe; + uint32_t interval; + int ret; + + if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + if (uvc_queue_streaming(&video->queue)) + return -EBUSY; + + memcpy(&probe, &video->streaming->ctrl, sizeof probe); + interval = uvc_fraction_to_interval( + parm->parm.capture.timeperframe.numerator, + parm->parm.capture.timeperframe.denominator); + + uvc_trace(UVC_TRACE_FORMAT, "Setting frame interval to %u/%u (%u).\n", + parm->parm.capture.timeperframe.numerator, + parm->parm.capture.timeperframe.denominator, + interval); + probe.dwFrameInterval = uvc_try_frame_interval(frame, interval); + + /* Probe the device with the new settings. */ + if ((ret = uvc_probe_video(video, &probe)) < 0) + return ret; + + /* Commit the new settings. */ + if ((ret = uvc_set_video_ctrl(video, &probe, 0)) < 0) + return ret; + + memcpy(&video->streaming->ctrl, &probe, sizeof probe); + + /* Return the actual frame period. */ + parm->parm.capture.timeperframe.numerator = probe.dwFrameInterval; + parm->parm.capture.timeperframe.denominator = 10000000; + uvc_simplify_fraction(&parm->parm.capture.timeperframe.numerator, + &parm->parm.capture.timeperframe.denominator, + 8, 333); + + return 0; +} + +/* ------------------------------------------------------------------------ + * Privilege management + */ + +/* + * Privilege management is the multiple-open implementation basis. The current + * implementation is completely transparent for the end-user and doesn't + * require explicit use of the VIDIOC_G_PRIORITY and VIDIOC_S_PRIORITY ioctls. + * Those ioctls enable finer control on the device (by making possible for a + * user to request exclusive access to a device), but are not mature yet. + * Switching to the V4L2 priority mechanism might be considered in the future + * if this situation changes. + * + * Each open instance of a UVC device can either be in a privileged or + * unprivileged state. Only a single instance can be in a privileged state at + * a given time. Trying to perform an operation which requires privileges will + * automatically acquire the required privileges if possible, or return -EBUSY + * otherwise. Privileges are dismissed when closing the instance. + * + * Operations which require privileges are: + * + * - VIDIOC_S_INPUT + * - VIDIOC_S_PARM + * - VIDIOC_S_FMT + * - VIDIOC_TRY_FMT + * - VIDIOC_REQBUFS + */ +static int uvc_acquire_privileges(struct uvc_fh *handle) +{ + int ret = 0; + + /* Always succeed if the handle is already privileged. */ + if (handle->state == UVC_HANDLE_ACTIVE) + return 0; + + /* Check if the device already has a privileged handle. */ + mutex_lock(&uvc_driver.open_mutex); + if (atomic_inc_return(&handle->device->active) != 1) { + atomic_dec(&handle->device->active); + ret = -EBUSY; + goto done; + } + + handle->state = UVC_HANDLE_ACTIVE; + +done: + mutex_unlock(&uvc_driver.open_mutex); + return ret; +} + +static void uvc_dismiss_privileges(struct uvc_fh *handle) +{ + if (handle->state == UVC_HANDLE_ACTIVE) + atomic_dec(&handle->device->active); + + handle->state = UVC_HANDLE_PASSIVE; +} + +static int uvc_has_privileges(struct uvc_fh *handle) +{ + return handle->state == UVC_HANDLE_ACTIVE; +} + +/* ------------------------------------------------------------------------ + * V4L2 file operations + */ + +static int uvc_v4l2_open(struct inode *inode, struct file *file) +{ + struct video_device *vdev; + struct uvc_video_device *video; + struct uvc_fh *handle; + int ret = 0; + + uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_open\n"); + mutex_lock(&uvc_driver.open_mutex); + vdev = video_devdata(file); + video = video_get_drvdata(vdev); + + if (video->dev->state & UVC_DEV_DISCONNECTED) { + ret = -ENODEV; + goto done; + } + + ret = usb_autopm_get_interface(video->dev->intf); + if (ret < 0) + goto done; + + /* Create the device handle. */ + handle = kzalloc(sizeof *handle, GFP_KERNEL); + if (handle == NULL) { + usb_autopm_put_interface(video->dev->intf); + ret = -ENOMEM; + goto done; + } + + handle->device = video; + handle->state = UVC_HANDLE_PASSIVE; + file->private_data = handle; + + kref_get(&video->dev->kref); + +done: + mutex_unlock(&uvc_driver.open_mutex); + return ret; +} + +static int uvc_v4l2_release(struct inode *inode, struct file *file) +{ + struct video_device *vdev = video_devdata(file); + struct uvc_video_device *video = video_get_drvdata(vdev); + struct uvc_fh *handle = (struct uvc_fh *)file->private_data; + + uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_release\n"); + + /* Only free resources if this is a privileged handle. */ + if (uvc_has_privileges(handle)) { + uvc_video_enable(video, 0); + + mutex_lock(&video->queue.mutex); + if (uvc_free_buffers(&video->queue) < 0) + uvc_printk(KERN_ERR, "uvc_v4l2_release: Unable to " + "free buffers.\n"); + mutex_unlock(&video->queue.mutex); + } + + /* Release the file handle. */ + uvc_dismiss_privileges(handle); + kfree(handle); + file->private_data = NULL; + + usb_autopm_put_interface(video->dev->intf); + kref_put(&video->dev->kref, uvc_delete); + return 0; +} + +static int uvc_v4l2_do_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, void *arg) +{ + struct video_device *vdev = video_devdata(file); + struct uvc_video_device *video = video_get_drvdata(vdev); + struct uvc_fh *handle = (struct uvc_fh *)file->private_data; + int ret = 0; + + if (uvc_trace_param & UVC_TRACE_IOCTL) + v4l_printk_ioctl(cmd); + + switch (cmd) { + /* Query capabilities */ + case VIDIOC_QUERYCAP: + { + struct v4l2_capability *cap = arg; + + memset(cap, 0, sizeof *cap); + strncpy(cap->driver, "uvcvideo", sizeof cap->driver); + strncpy(cap->card, vdev->name, 32); + strncpy(cap->bus_info, video->dev->udev->bus->bus_name, + sizeof cap->bus_info); + cap->version = DRIVER_VERSION_NUMBER; + cap->capabilities = V4L2_CAP_VIDEO_CAPTURE + | V4L2_CAP_STREAMING; + break; + } + + /* Get, Set & Query control */ + case VIDIOC_QUERYCTRL: + return uvc_query_v4l2_ctrl(video, arg); + + case VIDIOC_G_CTRL: + { + struct v4l2_control *ctrl = arg; + struct v4l2_ext_control xctrl; + + memset(&xctrl, 0, sizeof xctrl); + xctrl.id = ctrl->id; + + uvc_ctrl_begin(video); + ret = uvc_ctrl_get(video, &xctrl); + uvc_ctrl_rollback(video); + if (ret >= 0) + ctrl->value = xctrl.value; + break; + } + + case VIDIOC_S_CTRL: + { + struct v4l2_control *ctrl = arg; + struct v4l2_ext_control xctrl; + + memset(&xctrl, 0, sizeof xctrl); + xctrl.id = ctrl->id; + xctrl.value = ctrl->value; + + uvc_ctrl_begin(video); + ret = uvc_ctrl_set(video, &xctrl); + if (ret < 0) { + uvc_ctrl_rollback(video); + return ret; + } + ret = uvc_ctrl_commit(video); + break; + } + + case VIDIOC_QUERYMENU: + return uvc_v4l2_query_menu(video, arg); + + case VIDIOC_G_EXT_CTRLS: + { + struct v4l2_ext_controls *ctrls = arg; + struct v4l2_ext_control *ctrl = ctrls->controls; + unsigned int i; + + uvc_ctrl_begin(video); + for (i = 0; i < ctrls->count; ++ctrl, ++i) { + ret = uvc_ctrl_get(video, ctrl); + if (ret < 0) { + uvc_ctrl_rollback(video); + ctrls->error_idx = i; + return ret; + } + } + ctrls->error_idx = 0; + ret = uvc_ctrl_rollback(video); + break; + } + + case VIDIOC_S_EXT_CTRLS: + case VIDIOC_TRY_EXT_CTRLS: + { + struct v4l2_ext_controls *ctrls = arg; + struct v4l2_ext_control *ctrl = ctrls->controls; + unsigned int i; + + ret = uvc_ctrl_begin(video); + if (ret < 0) + return ret; + + for (i = 0; i < ctrls->count; ++ctrl, ++i) { + ret = uvc_ctrl_set(video, ctrl); + if (ret < 0) { + uvc_ctrl_rollback(video); + ctrls->error_idx = i; + return ret; + } + } + + ctrls->error_idx = 0; + + if (cmd == VIDIOC_S_EXT_CTRLS) + ret = uvc_ctrl_commit(video); + else + ret = uvc_ctrl_rollback(video); + break; + } + + /* Get, Set & Enum input */ + case VIDIOC_ENUMINPUT: + { + const struct uvc_entity *selector = video->selector; + struct v4l2_input *input = arg; + struct uvc_entity *iterm = NULL; + u32 index = input->index; + int pin = 0; + + if (selector == NULL || + (video->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) { + if (index != 0) + return -EINVAL; + iterm = list_first_entry(&video->iterms, + struct uvc_entity, chain); + pin = iterm->id; + } else if (pin < selector->selector.bNrInPins) { + pin = selector->selector.baSourceID[index]; + list_for_each_entry(iterm, video->iterms.next, chain) { + if (iterm->id == pin) + break; + } + } + + if (iterm == NULL || iterm->id != pin) + return -EINVAL; + + memset(input, 0, sizeof *input); + input->index = index; + strncpy(input->name, iterm->name, sizeof input->name); + if (UVC_ENTITY_TYPE(iterm) == ITT_CAMERA) + input->type = V4L2_INPUT_TYPE_CAMERA; + break; + } + + case VIDIOC_G_INPUT: + { + u8 input; + + if (video->selector == NULL || + (video->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) { + *(int *)arg = 0; + break; + } + + ret = uvc_query_ctrl(video->dev, GET_CUR, video->selector->id, + video->dev->intfnum, SU_INPUT_SELECT_CONTROL, + &input, 1); + if (ret < 0) + return ret; + + *(int *)arg = input - 1; + break; + } + + case VIDIOC_S_INPUT: + { + u8 input = *(u32 *)arg + 1; + + if ((ret = uvc_acquire_privileges(handle)) < 0) + return ret; + + if (video->selector == NULL || + (video->dev->quirks & UVC_QUIRK_IGNORE_SELECTOR_UNIT)) { + if (input != 1) + return -EINVAL; + break; + } + + if (input > video->selector->selector.bNrInPins) + return -EINVAL; + + return uvc_query_ctrl(video->dev, SET_CUR, video->selector->id, + video->dev->intfnum, SU_INPUT_SELECT_CONTROL, + &input, 1); + } + + /* Try, Get, Set & Enum format */ + case VIDIOC_ENUM_FMT: + { + struct v4l2_fmtdesc *fmt = arg; + struct uvc_format *format; + + if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + fmt->index >= video->streaming->nformats) + return -EINVAL; + + format = &video->streaming->format[fmt->index]; + fmt->flags = 0; + if (format->flags & UVC_FMT_FLAG_COMPRESSED) + fmt->flags |= V4L2_FMT_FLAG_COMPRESSED; + strncpy(fmt->description, format->name, + sizeof fmt->description); + fmt->description[sizeof fmt->description - 1] = 0; + fmt->pixelformat = format->fcc; + break; + } + + case VIDIOC_TRY_FMT: + { + struct uvc_streaming_control probe; + + if ((ret = uvc_acquire_privileges(handle)) < 0) + return ret; + + return uvc_v4l2_try_format(video, arg, &probe, NULL, NULL); + } + + case VIDIOC_S_FMT: + if ((ret = uvc_acquire_privileges(handle)) < 0) + return ret; + + return uvc_v4l2_set_format(video, arg); + + case VIDIOC_G_FMT: + return uvc_v4l2_get_format(video, arg); + + /* Frame size enumeration */ + case VIDIOC_ENUM_FRAMESIZES: + { + struct v4l2_frmsizeenum *fsize = arg; + struct uvc_format *format = NULL; + struct uvc_frame *frame; + int i; + + /* Look for the given pixel format */ + for (i = 0; i < video->streaming->nformats; i++) { + if (video->streaming->format[i].fcc == + fsize->pixel_format) { + format = &video->streaming->format[i]; + break; + } + } + if (format == NULL) + return -EINVAL; + + if (fsize->index >= format->nframes) + return -EINVAL; + + frame = &format->frame[fsize->index]; + fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; + fsize->discrete.width = frame->wWidth; + fsize->discrete.height = frame->wHeight; + break; + } + + /* Frame interval enumeration */ + case VIDIOC_ENUM_FRAMEINTERVALS: + { + struct v4l2_frmivalenum *fival = arg; + struct uvc_format *format = NULL; + struct uvc_frame *frame = NULL; + int i; + + /* Look for the given pixel format and frame size */ + for (i = 0; i < video->streaming->nformats; i++) { + if (video->streaming->format[i].fcc == + fival->pixel_format) { + format = &video->streaming->format[i]; + break; + } + } + if (format == NULL) + return -EINVAL; + + for (i = 0; i < format->nframes; i++) { + if (format->frame[i].wWidth == fival->width && + format->frame[i].wHeight == fival->height) { + frame = &format->frame[i]; + break; + } + } + if (frame == NULL) + return -EINVAL; + + if (frame->bFrameIntervalType) { + if (fival->index >= frame->bFrameIntervalType) + return -EINVAL; + + fival->type = V4L2_FRMIVAL_TYPE_DISCRETE; + fival->discrete.numerator = + frame->dwFrameInterval[fival->index]; + fival->discrete.denominator = 10000000; + uvc_simplify_fraction(&fival->discrete.numerator, + &fival->discrete.denominator, 8, 333); + } else { + fival->type = V4L2_FRMIVAL_TYPE_STEPWISE; + fival->stepwise.min.numerator = + frame->dwFrameInterval[0]; + fival->stepwise.min.denominator = 10000000; + fival->stepwise.max.numerator = + frame->dwFrameInterval[1]; + fival->stepwise.max.denominator = 10000000; + fival->stepwise.step.numerator = + frame->dwFrameInterval[2]; + fival->stepwise.step.denominator = 10000000; + uvc_simplify_fraction(&fival->stepwise.min.numerator, + &fival->stepwise.min.denominator, 8, 333); + uvc_simplify_fraction(&fival->stepwise.max.numerator, + &fival->stepwise.max.denominator, 8, 333); + uvc_simplify_fraction(&fival->stepwise.step.numerator, + &fival->stepwise.step.denominator, 8, 333); + } + break; + } + + /* Get & Set streaming parameters */ + case VIDIOC_G_PARM: + return uvc_v4l2_get_streamparm(video, arg); + + case VIDIOC_S_PARM: + if ((ret = uvc_acquire_privileges(handle)) < 0) + return ret; + + return uvc_v4l2_set_streamparm(video, arg); + + /* Cropping and scaling */ + case VIDIOC_CROPCAP: + { + struct v4l2_cropcap *ccap = arg; + struct uvc_frame *frame = video->streaming->cur_frame; + + if (ccap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + ccap->bounds.left = 0; + ccap->bounds.top = 0; + ccap->bounds.width = frame->wWidth; + ccap->bounds.height = frame->wHeight; + + ccap->defrect = ccap->bounds; + + ccap->pixelaspect.numerator = 1; + ccap->pixelaspect.denominator = 1; + break; + } + + case VIDIOC_G_CROP: + case VIDIOC_S_CROP: + return -EINVAL; + + /* Buffers & streaming */ + case VIDIOC_REQBUFS: + { + struct v4l2_requestbuffers *rb = arg; + unsigned int bufsize = + video->streaming->ctrl.dwMaxVideoFrameSize; + + if (rb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + rb->memory != V4L2_MEMORY_MMAP) + return -EINVAL; + + if ((ret = uvc_acquire_privileges(handle)) < 0) + return ret; + + ret = uvc_alloc_buffers(&video->queue, rb->count, bufsize); + if (ret < 0) + return ret; + + if (!(video->streaming->cur_format->flags & + UVC_FMT_FLAG_COMPRESSED)) + video->queue.flags |= UVC_QUEUE_DROP_INCOMPLETE; + + rb->count = ret; + ret = 0; + break; + } + + case VIDIOC_QUERYBUF: + { + struct v4l2_buffer *buf = arg; + + if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + if (!uvc_has_privileges(handle)) + return -EBUSY; + + return uvc_query_buffer(&video->queue, buf); + } + + case VIDIOC_QBUF: + if (!uvc_has_privileges(handle)) + return -EBUSY; + + return uvc_queue_buffer(&video->queue, arg); + + case VIDIOC_DQBUF: + if (!uvc_has_privileges(handle)) + return -EBUSY; + + return uvc_dequeue_buffer(&video->queue, arg, + file->f_flags & O_NONBLOCK); + + case VIDIOC_STREAMON: + { + int *type = arg; + + if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + if (!uvc_has_privileges(handle)) + return -EBUSY; + + if ((ret = uvc_video_enable(video, 1)) < 0) + return ret; + break; + } + + case VIDIOC_STREAMOFF: + { + int *type = arg; + + if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + + if (!uvc_has_privileges(handle)) + return -EBUSY; + + return uvc_video_enable(video, 0); + } + + /* Analog video standards make no sense for digital cameras. */ + case VIDIOC_ENUMSTD: + case VIDIOC_QUERYSTD: + case VIDIOC_G_STD: + case VIDIOC_S_STD: + + case VIDIOC_OVERLAY: + + case VIDIOC_ENUMAUDIO: + case VIDIOC_ENUMAUDOUT: + + case VIDIOC_ENUMOUTPUT: + uvc_trace(UVC_TRACE_IOCTL, "Unsupported ioctl 0x%08x\n", cmd); + return -EINVAL; + + /* Dynamic controls. */ + case UVCIOC_CTRL_ADD: + { + struct uvc_xu_control_info *xinfo = arg; + struct uvc_control_info *info; + + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + info = kmalloc(sizeof *info, GFP_KERNEL); + if (info == NULL) + return -ENOMEM; + + memcpy(info->entity, xinfo->entity, sizeof info->entity); + info->index = xinfo->index; + info->selector = xinfo->selector; + info->size = xinfo->size; + info->flags = xinfo->flags; + + info->flags |= UVC_CONTROL_GET_MIN | UVC_CONTROL_GET_MAX | + UVC_CONTROL_GET_RES | UVC_CONTROL_GET_DEF; + + ret = uvc_ctrl_add_info(info); + if (ret < 0) + kfree(info); + break; + } + + case UVCIOC_CTRL_MAP: + { + struct uvc_xu_control_mapping *xmap = arg; + struct uvc_control_mapping *map; + + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + map = kmalloc(sizeof *map, GFP_KERNEL); + if (map == NULL) + return -ENOMEM; + + map->id = xmap->id; + memcpy(map->name, xmap->name, sizeof map->name); + memcpy(map->entity, xmap->entity, sizeof map->entity); + map->selector = xmap->selector; + map->size = xmap->size; + map->offset = xmap->offset; + map->v4l2_type = xmap->v4l2_type; + map->data_type = xmap->data_type; + + ret = uvc_ctrl_add_mapping(map); + if (ret < 0) + kfree(map); + break; + } + + case UVCIOC_CTRL_GET: + return uvc_xu_ctrl_query(video, arg, 0); + + case UVCIOC_CTRL_SET: + return uvc_xu_ctrl_query(video, arg, 1); + + default: + if ((ret = v4l_compat_translate_ioctl(inode, file, cmd, arg, + uvc_v4l2_do_ioctl)) == -ENOIOCTLCMD) + uvc_trace(UVC_TRACE_IOCTL, "Unknown ioctl 0x%08x\n", + cmd); + return ret; + } + + return ret; +} + +static int uvc_v4l2_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg) +{ + uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_ioctl\n"); + return video_usercopy(inode, file, cmd, arg, uvc_v4l2_do_ioctl); +} + +static ssize_t uvc_v4l2_read(struct file *file, char __user *data, + size_t count, loff_t *ppos) +{ + uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_read: not implemented.\n"); + return -ENODEV; +} + +/* + * VMA operations. + */ +static void uvc_vm_open(struct vm_area_struct *vma) +{ + struct uvc_buffer *buffer = vma->vm_private_data; + buffer->vma_use_count++; +} + +static void uvc_vm_close(struct vm_area_struct *vma) +{ + struct uvc_buffer *buffer = vma->vm_private_data; + buffer->vma_use_count--; +} + +static struct vm_operations_struct uvc_vm_ops = { + .open = uvc_vm_open, + .close = uvc_vm_close, +}; + +static int uvc_v4l2_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct video_device *vdev = video_devdata(file); + struct uvc_video_device *video = video_get_drvdata(vdev); + struct uvc_buffer *buffer; + struct page *page; + unsigned long addr, start, size; + unsigned int i; + int ret = 0; + + uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_mmap\n"); + + start = vma->vm_start; + size = vma->vm_end - vma->vm_start; + + mutex_lock(&video->queue.mutex); + + for (i = 0; i < video->queue.count; ++i) { + buffer = &video->queue.buffer[i]; + if ((buffer->buf.m.offset >> PAGE_SHIFT) == vma->vm_pgoff) + break; + } + + if (i == video->queue.count || size != video->queue.buf_size) { + ret = -EINVAL; + goto done; + } + + /* + * VM_IO marks the area as being an mmaped region for I/O to a + * device. It also prevents the region from being core dumped. + */ + vma->vm_flags |= VM_IO; + + addr = (unsigned long)video->queue.mem + buffer->buf.m.offset; + while (size > 0) { + page = vmalloc_to_page((void *)addr); + if ((ret = vm_insert_page(vma, start, page)) < 0) + goto done; + + start += PAGE_SIZE; + addr += PAGE_SIZE; + size -= PAGE_SIZE; + } + + vma->vm_ops = &uvc_vm_ops; + vma->vm_private_data = buffer; + uvc_vm_open(vma); + +done: + mutex_unlock(&video->queue.mutex); + return ret; +} + +static unsigned int uvc_v4l2_poll(struct file *file, poll_table *wait) +{ + struct video_device *vdev = video_devdata(file); + struct uvc_video_device *video = video_get_drvdata(vdev); + + uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_poll\n"); + + return uvc_queue_poll(&video->queue, file, wait); +} + +struct file_operations uvc_fops = { + .owner = THIS_MODULE, + .open = uvc_v4l2_open, + .release = uvc_v4l2_release, + .ioctl = uvc_v4l2_ioctl, + .compat_ioctl = v4l_compat_ioctl32, + .llseek = no_llseek, + .read = uvc_v4l2_read, + .mmap = uvc_v4l2_mmap, + .poll = uvc_v4l2_poll, +}; diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c new file mode 100644 index 00000000000..6faf1fb2161 --- /dev/null +++ b/drivers/media/video/uvc/uvc_video.c @@ -0,0 +1,934 @@ +/* + * uvc_video.c -- USB Video Class driver - Video handling + * + * Copyright (C) 2005-2008 + * Laurent Pinchart (laurent.pinchart@skynet.be) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/version.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/usb.h> +#include <linux/videodev2.h> +#include <linux/vmalloc.h> +#include <linux/wait.h> +#include <asm/atomic.h> +#include <asm/unaligned.h> + +#include <media/v4l2-common.h> + +#include "uvcvideo.h" + +/* ------------------------------------------------------------------------ + * UVC Controls + */ + +static int __uvc_query_ctrl(struct uvc_device *dev, __u8 query, __u8 unit, + __u8 intfnum, __u8 cs, void *data, __u16 size, + int timeout) +{ + __u8 type = USB_TYPE_CLASS | USB_RECIP_INTERFACE; + unsigned int pipe; + int ret; + + pipe = (query & 0x80) ? usb_rcvctrlpipe(dev->udev, 0) + : usb_sndctrlpipe(dev->udev, 0); + type |= (query & 0x80) ? USB_DIR_IN : USB_DIR_OUT; + + ret = usb_control_msg(dev->udev, pipe, query, type, cs << 8, + unit << 8 | intfnum, data, size, timeout); + + if (ret != size) { + uvc_printk(KERN_ERR, "Failed to query (%u) UVC control %u " + "(unit %u) : %d (exp. %u).\n", query, cs, unit, ret, + size); + return -EIO; + } + + return 0; +} + +int uvc_query_ctrl(struct uvc_device *dev, __u8 query, __u8 unit, + __u8 intfnum, __u8 cs, void *data, __u16 size) +{ + return __uvc_query_ctrl(dev, query, unit, intfnum, cs, data, size, + UVC_CTRL_CONTROL_TIMEOUT); +} + +static void uvc_fixup_buffer_size(struct uvc_video_device *video, + struct uvc_streaming_control *ctrl) +{ + struct uvc_format *format; + struct uvc_frame *frame; + + if (ctrl->bFormatIndex <= 0 || + ctrl->bFormatIndex > video->streaming->nformats) + return; + + format = &video->streaming->format[ctrl->bFormatIndex - 1]; + + if (ctrl->bFrameIndex <= 0 || + ctrl->bFrameIndex > format->nframes) + return; + + frame = &format->frame[ctrl->bFrameIndex - 1]; + + if (!(format->flags & UVC_FMT_FLAG_COMPRESSED) || + (ctrl->dwMaxVideoFrameSize == 0 && + video->dev->uvc_version < 0x0110)) + ctrl->dwMaxVideoFrameSize = + frame->dwMaxVideoFrameBufferSize; +} + +static int uvc_get_video_ctrl(struct uvc_video_device *video, + struct uvc_streaming_control *ctrl, int probe, __u8 query) +{ + __u8 data[34]; + __u8 size; + int ret; + + size = video->dev->uvc_version >= 0x0110 ? 34 : 26; + ret = __uvc_query_ctrl(video->dev, query, 0, video->streaming->intfnum, + probe ? VS_PROBE_CONTROL : VS_COMMIT_CONTROL, &data, size, + UVC_CTRL_STREAMING_TIMEOUT); + + if (ret < 0) + return ret; + + ctrl->bmHint = le16_to_cpup((__le16 *)&data[0]); + ctrl->bFormatIndex = data[2]; + ctrl->bFrameIndex = data[3]; + ctrl->dwFrameInterval = le32_to_cpup((__le32 *)&data[4]); + ctrl->wKeyFrameRate = le16_to_cpup((__le16 *)&data[8]); + ctrl->wPFrameRate = le16_to_cpup((__le16 *)&data[10]); + ctrl->wCompQuality = le16_to_cpup((__le16 *)&data[12]); + ctrl->wCompWindowSize = le16_to_cpup((__le16 *)&data[14]); + ctrl->wDelay = le16_to_cpup((__le16 *)&data[16]); + ctrl->dwMaxVideoFrameSize = + le32_to_cpu(get_unaligned((__le32 *)&data[18])); + ctrl->dwMaxPayloadTransferSize = + le32_to_cpu(get_unaligned((__le32 *)&data[22])); + + if (size == 34) { + ctrl->dwClockFrequency = + le32_to_cpu(get_unaligned((__le32 *)&data[26])); + ctrl->bmFramingInfo = data[30]; + ctrl->bPreferedVersion = data[31]; + ctrl->bMinVersion = data[32]; + ctrl->bMaxVersion = data[33]; + } else { + ctrl->dwClockFrequency = video->dev->clock_frequency; + ctrl->bmFramingInfo = 0; + ctrl->bPreferedVersion = 0; + ctrl->bMinVersion = 0; + ctrl->bMaxVersion = 0; + } + + /* Some broken devices return a null or wrong dwMaxVideoFrameSize. + * Try to get the value from the format and frame descriptor. + */ + uvc_fixup_buffer_size(video, ctrl); + + return 0; +} + +int uvc_set_video_ctrl(struct uvc_video_device *video, + struct uvc_streaming_control *ctrl, int probe) +{ + __u8 data[34]; + __u8 size; + + size = video->dev->uvc_version >= 0x0110 ? 34 : 26; + memset(data, 0, sizeof data); + + *(__le16 *)&data[0] = cpu_to_le16(ctrl->bmHint); + data[2] = ctrl->bFormatIndex; + data[3] = ctrl->bFrameIndex; + *(__le32 *)&data[4] = cpu_to_le32(ctrl->dwFrameInterval); + *(__le16 *)&data[8] = cpu_to_le16(ctrl->wKeyFrameRate); + *(__le16 *)&data[10] = cpu_to_le16(ctrl->wPFrameRate); + *(__le16 *)&data[12] = cpu_to_le16(ctrl->wCompQuality); + *(__le16 *)&data[14] = cpu_to_le16(ctrl->wCompWindowSize); + *(__le16 *)&data[16] = cpu_to_le16(ctrl->wDelay); + /* Note: Some of the fields below are not required for IN devices (see + * UVC spec, 4.3.1.1), but we still copy them in case support for OUT + * devices is added in the future. */ + put_unaligned(cpu_to_le32(ctrl->dwMaxVideoFrameSize), + (__le32 *)&data[18]); + put_unaligned(cpu_to_le32(ctrl->dwMaxPayloadTransferSize), + (__le32 *)&data[22]); + + if (size == 34) { + put_unaligned(cpu_to_le32(ctrl->dwClockFrequency), + (__le32 *)&data[26]); + data[30] = ctrl->bmFramingInfo; + data[31] = ctrl->bPreferedVersion; + data[32] = ctrl->bMinVersion; + data[33] = ctrl->bMaxVersion; + } + + return __uvc_query_ctrl(video->dev, SET_CUR, 0, + video->streaming->intfnum, + probe ? VS_PROBE_CONTROL : VS_COMMIT_CONTROL, &data, size, + UVC_CTRL_STREAMING_TIMEOUT); +} + +int uvc_probe_video(struct uvc_video_device *video, + struct uvc_streaming_control *probe) +{ + struct uvc_streaming_control probe_min, probe_max; + __u16 bandwidth; + unsigned int i; + int ret; + + mutex_lock(&video->streaming->mutex); + + /* Perform probing. The device should adjust the requested values + * according to its capabilities. However, some devices, namely the + * first generation UVC Logitech webcams, don't implement the Video + * Probe control properly, and just return the needed bandwidth. For + * that reason, if the needed bandwidth exceeds the maximum available + * bandwidth, try to lower the quality. + */ + if ((ret = uvc_set_video_ctrl(video, probe, 1)) < 0) + goto done; + + /* Get the minimum and maximum values for compression settings. */ + if (!(video->dev->quirks & UVC_QUIRK_PROBE_MINMAX)) { + ret = uvc_get_video_ctrl(video, &probe_min, 1, GET_MIN); + if (ret < 0) + goto done; + ret = uvc_get_video_ctrl(video, &probe_max, 1, GET_MAX); + if (ret < 0) + goto done; + + probe->wCompQuality = probe_max.wCompQuality; + } + + for (i = 0; i < 2; ++i) { + if ((ret = uvc_set_video_ctrl(video, probe, 1)) < 0 || + (ret = uvc_get_video_ctrl(video, probe, 1, GET_CUR)) < 0) + goto done; + + if (video->streaming->intf->num_altsetting == 1) + break; + + bandwidth = probe->dwMaxPayloadTransferSize; + if (bandwidth <= video->streaming->maxpsize) + break; + + if (video->dev->quirks & UVC_QUIRK_PROBE_MINMAX) { + ret = -ENOSPC; + goto done; + } + + /* TODO: negotiate compression parameters */ + probe->wKeyFrameRate = probe_min.wKeyFrameRate; + probe->wPFrameRate = probe_min.wPFrameRate; + probe->wCompQuality = probe_max.wCompQuality; + probe->wCompWindowSize = probe_min.wCompWindowSize; + } + +done: + mutex_unlock(&video->streaming->mutex); + return ret; +} + +/* ------------------------------------------------------------------------ + * Video codecs + */ + +/* Values for bmHeaderInfo (Video and Still Image Payload Headers, 2.4.3.3) */ +#define UVC_STREAM_EOH (1 << 7) +#define UVC_STREAM_ERR (1 << 6) +#define UVC_STREAM_STI (1 << 5) +#define UVC_STREAM_RES (1 << 4) +#define UVC_STREAM_SCR (1 << 3) +#define UVC_STREAM_PTS (1 << 2) +#define UVC_STREAM_EOF (1 << 1) +#define UVC_STREAM_FID (1 << 0) + +/* Video payload decoding is handled by uvc_video_decode_start(), + * uvc_video_decode_data() and uvc_video_decode_end(). + * + * uvc_video_decode_start is called with URB data at the start of a bulk or + * isochronous payload. It processes header data and returns the header size + * in bytes if successful. If an error occurs, it returns a negative error + * code. The following error codes have special meanings. + * + * - EAGAIN informs the caller that the current video buffer should be marked + * as done, and that the function should be called again with the same data + * and a new video buffer. This is used when end of frame conditions can be + * reliably detected at the beginning of the next frame only. + * + * If an error other than -EAGAIN is returned, the caller will drop the current + * payload. No call to uvc_video_decode_data and uvc_video_decode_end will be + * made until the next payload. -ENODATA can be used to drop the current + * payload if no other error code is appropriate. + * + * uvc_video_decode_data is called for every URB with URB data. It copies the + * data to the video buffer. + * + * uvc_video_decode_end is called with header data at the end of a bulk or + * isochronous payload. It performs any additional header data processing and + * returns 0 or a negative error code if an error occured. As header data have + * already been processed by uvc_video_decode_start, this functions isn't + * required to perform sanity checks a second time. + * + * For isochronous transfers where a payload is always transfered in a single + * URB, the three functions will be called in a row. + * + * To let the decoder process header data and update its internal state even + * when no video buffer is available, uvc_video_decode_start must be prepared + * to be called with a NULL buf parameter. uvc_video_decode_data and + * uvc_video_decode_end will never be called with a NULL buffer. + */ +static int uvc_video_decode_start(struct uvc_video_device *video, + struct uvc_buffer *buf, const __u8 *data, int len) +{ + __u8 fid; + + /* Sanity checks: + * - packet must be at least 2 bytes long + * - bHeaderLength value must be at least 2 bytes (see above) + * - bHeaderLength value can't be larger than the packet size. + */ + if (len < 2 || data[0] < 2 || data[0] > len) + return -EINVAL; + + /* Skip payloads marked with the error bit ("error frames"). */ + if (data[1] & UVC_STREAM_ERR) { + uvc_trace(UVC_TRACE_FRAME, "Dropping payload (error bit " + "set).\n"); + return -ENODATA; + } + + fid = data[1] & UVC_STREAM_FID; + + /* Store the payload FID bit and return immediately when the buffer is + * NULL. + */ + if (buf == NULL) { + video->last_fid = fid; + return -ENODATA; + } + + /* Synchronize to the input stream by waiting for the FID bit to be + * toggled when the the buffer state is not UVC_BUF_STATE_ACTIVE. + * queue->last_fid is initialized to -1, so the first isochronous + * frame will always be in sync. + * + * If the device doesn't toggle the FID bit, invert video->last_fid + * when the EOF bit is set to force synchronisation on the next packet. + */ + if (buf->state != UVC_BUF_STATE_ACTIVE) { + if (fid == video->last_fid) { + uvc_trace(UVC_TRACE_FRAME, "Dropping payload (out of " + "sync).\n"); + if ((video->dev->quirks & UVC_QUIRK_STREAM_NO_FID) && + (data[1] & UVC_STREAM_EOF)) + video->last_fid ^= UVC_STREAM_FID; + return -ENODATA; + } + + /* TODO: Handle PTS and SCR. */ + buf->state = UVC_BUF_STATE_ACTIVE; + } + + /* Mark the buffer as done if we're at the beginning of a new frame. + * End of frame detection is better implemented by checking the EOF + * bit (FID bit toggling is delayed by one frame compared to the EOF + * bit), but some devices don't set the bit at end of frame (and the + * last payload can be lost anyway). We thus must check if the FID has + * been toggled. + * + * queue->last_fid is initialized to -1, so the first isochronous + * frame will never trigger an end of frame detection. + * + * Empty buffers (bytesused == 0) don't trigger end of frame detection + * as it doesn't make sense to return an empty buffer. This also + * avoids detecting and of frame conditions at FID toggling if the + * previous payload had the EOF bit set. + */ + if (fid != video->last_fid && buf->buf.bytesused != 0) { + uvc_trace(UVC_TRACE_FRAME, "Frame complete (FID bit " + "toggled).\n"); + buf->state = UVC_BUF_STATE_DONE; + return -EAGAIN; + } + + video->last_fid = fid; + + return data[0]; +} + +static void uvc_video_decode_data(struct uvc_video_device *video, + struct uvc_buffer *buf, const __u8 *data, int len) +{ + struct uvc_video_queue *queue = &video->queue; + unsigned int maxlen, nbytes; + void *mem; + + if (len <= 0) + return; + + /* Copy the video data to the buffer. */ + maxlen = buf->buf.length - buf->buf.bytesused; + mem = queue->mem + buf->buf.m.offset + buf->buf.bytesused; + nbytes = min((unsigned int)len, maxlen); + memcpy(mem, data, nbytes); + buf->buf.bytesused += nbytes; + + /* Complete the current frame if the buffer size was exceeded. */ + if (len > maxlen) { + uvc_trace(UVC_TRACE_FRAME, "Frame complete (overflow).\n"); + buf->state = UVC_BUF_STATE_DONE; + } +} + +static void uvc_video_decode_end(struct uvc_video_device *video, + struct uvc_buffer *buf, const __u8 *data, int len) +{ + /* Mark the buffer as done if the EOF marker is set. */ + if (data[1] & UVC_STREAM_EOF && buf->buf.bytesused != 0) { + uvc_trace(UVC_TRACE_FRAME, "Frame complete (EOF found).\n"); + if (data[0] == len) + uvc_trace(UVC_TRACE_FRAME, "EOF in empty payload.\n"); + buf->state = UVC_BUF_STATE_DONE; + if (video->dev->quirks & UVC_QUIRK_STREAM_NO_FID) + video->last_fid ^= UVC_STREAM_FID; + } +} + +/* ------------------------------------------------------------------------ + * URB handling + */ + +/* + * Completion handler for video URBs. + */ +static void uvc_video_decode_isoc(struct urb *urb, + struct uvc_video_device *video, struct uvc_buffer *buf) +{ + u8 *mem; + int ret, i; + + for (i = 0; i < urb->number_of_packets; ++i) { + if (urb->iso_frame_desc[i].status < 0) { + uvc_trace(UVC_TRACE_FRAME, "USB isochronous frame " + "lost (%d).\n", urb->iso_frame_desc[i].status); + continue; + } + + /* Decode the payload header. */ + mem = urb->transfer_buffer + urb->iso_frame_desc[i].offset; + do { + ret = uvc_video_decode_start(video, buf, mem, + urb->iso_frame_desc[i].actual_length); + if (ret == -EAGAIN) + buf = uvc_queue_next_buffer(&video->queue, buf); + } while (ret == -EAGAIN); + + if (ret < 0) + continue; + + /* Decode the payload data. */ + uvc_video_decode_data(video, buf, mem + ret, + urb->iso_frame_desc[i].actual_length - ret); + + /* Process the header again. */ + uvc_video_decode_end(video, buf, mem, ret); + + if (buf->state == UVC_BUF_STATE_DONE || + buf->state == UVC_BUF_STATE_ERROR) + buf = uvc_queue_next_buffer(&video->queue, buf); + } +} + +static void uvc_video_decode_bulk(struct urb *urb, + struct uvc_video_device *video, struct uvc_buffer *buf) +{ + u8 *mem; + int len, ret; + + mem = urb->transfer_buffer; + len = urb->actual_length; + video->bulk.payload_size += len; + + /* If the URB is the first of its payload, decode and save the + * header. + */ + if (video->bulk.header_size == 0) { + do { + ret = uvc_video_decode_start(video, buf, mem, len); + if (ret == -EAGAIN) + buf = uvc_queue_next_buffer(&video->queue, buf); + } while (ret == -EAGAIN); + + /* If an error occured skip the rest of the payload. */ + if (ret < 0 || buf == NULL) { + video->bulk.skip_payload = 1; + return; + } + + video->bulk.header_size = ret; + memcpy(video->bulk.header, mem, video->bulk.header_size); + + mem += ret; + len -= ret; + } + + /* The buffer queue might have been cancelled while a bulk transfer + * was in progress, so we can reach here with buf equal to NULL. Make + * sure buf is never dereferenced if NULL. + */ + + /* Process video data. */ + if (!video->bulk.skip_payload && buf != NULL) + uvc_video_decode_data(video, buf, mem, len); + + /* Detect the payload end by a URB smaller than the maximum size (or + * a payload size equal to the maximum) and process the header again. + */ + if (urb->actual_length < urb->transfer_buffer_length || + video->bulk.payload_size >= video->bulk.max_payload_size) { + if (!video->bulk.skip_payload && buf != NULL) { + uvc_video_decode_end(video, buf, video->bulk.header, + video->bulk.header_size); + if (buf->state == UVC_BUF_STATE_DONE || + buf->state == UVC_BUF_STATE_ERROR) + buf = uvc_queue_next_buffer(&video->queue, buf); + } + + video->bulk.header_size = 0; + video->bulk.skip_payload = 0; + video->bulk.payload_size = 0; + } +} + +static void uvc_video_complete(struct urb *urb) +{ + struct uvc_video_device *video = urb->context; + struct uvc_video_queue *queue = &video->queue; + struct uvc_buffer *buf = NULL; + unsigned long flags; + int ret; + + switch (urb->status) { + case 0: + break; + + default: + uvc_printk(KERN_WARNING, "Non-zero status (%d) in video " + "completion handler.\n", urb->status); + + case -ENOENT: /* usb_kill_urb() called. */ + if (video->frozen) + return; + + case -ECONNRESET: /* usb_unlink_urb() called. */ + case -ESHUTDOWN: /* The endpoint is being disabled. */ + uvc_queue_cancel(queue, urb->status == -ESHUTDOWN); + return; + } + + spin_lock_irqsave(&queue->irqlock, flags); + if (!list_empty(&queue->irqqueue)) + buf = list_first_entry(&queue->irqqueue, struct uvc_buffer, + queue); + spin_unlock_irqrestore(&queue->irqlock, flags); + + video->decode(urb, video, buf); + + if ((ret = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { + uvc_printk(KERN_ERR, "Failed to resubmit video URB (%d).\n", + ret); + } +} + +/* + * Uninitialize isochronous/bulk URBs and free transfer buffers. + */ +static void uvc_uninit_video(struct uvc_video_device *video) +{ + struct urb *urb; + unsigned int i; + + for (i = 0; i < UVC_URBS; ++i) { + if ((urb = video->urb[i]) == NULL) + continue; + + usb_kill_urb(urb); + /* urb->transfer_buffer_length is not touched by USB core, so + * we can use it here as the buffer length. + */ + if (video->urb_buffer[i]) { + usb_buffer_free(video->dev->udev, + urb->transfer_buffer_length, + video->urb_buffer[i], urb->transfer_dma); + video->urb_buffer[i] = NULL; + } + + usb_free_urb(urb); + video->urb[i] = NULL; + } +} + +/* + * Initialize isochronous URBs and allocate transfer buffers. The packet size + * is given by the endpoint. + */ +static int uvc_init_video_isoc(struct uvc_video_device *video, + struct usb_host_endpoint *ep) +{ + struct urb *urb; + unsigned int npackets, i, j; + __u16 psize; + __u32 size; + + /* Compute the number of isochronous packets to allocate by dividing + * the maximum video frame size by the packet size. Limit the result + * to UVC_MAX_ISO_PACKETS. + */ + psize = le16_to_cpu(ep->desc.wMaxPacketSize); + psize = (psize & 0x07ff) * (1 + ((psize >> 11) & 3)); + + size = video->streaming->ctrl.dwMaxVideoFrameSize; + if (size > UVC_MAX_FRAME_SIZE) + return -EINVAL; + + npackets = (size + psize - 1) / psize; + if (npackets > UVC_MAX_ISO_PACKETS) + npackets = UVC_MAX_ISO_PACKETS; + + size = npackets * psize; + + for (i = 0; i < UVC_URBS; ++i) { + urb = usb_alloc_urb(npackets, GFP_KERNEL); + if (urb == NULL) { + uvc_uninit_video(video); + return -ENOMEM; + } + + video->urb_buffer[i] = usb_buffer_alloc(video->dev->udev, + size, GFP_KERNEL, &urb->transfer_dma); + if (video->urb_buffer[i] == NULL) { + usb_free_urb(urb); + uvc_uninit_video(video); + return -ENOMEM; + } + + urb->dev = video->dev->udev; + urb->context = video; + urb->pipe = usb_rcvisocpipe(video->dev->udev, + ep->desc.bEndpointAddress); + urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; + urb->interval = ep->desc.bInterval; + urb->transfer_buffer = video->urb_buffer[i]; + urb->complete = uvc_video_complete; + urb->number_of_packets = npackets; + urb->transfer_buffer_length = size; + + for (j = 0; j < npackets; ++j) { + urb->iso_frame_desc[j].offset = j * psize; + urb->iso_frame_desc[j].length = psize; + } + + video->urb[i] = urb; + } + + return 0; +} + +/* + * Initialize bulk URBs and allocate transfer buffers. The packet size is + * given by the endpoint. + */ +static int uvc_init_video_bulk(struct uvc_video_device *video, + struct usb_host_endpoint *ep) +{ + struct urb *urb; + unsigned int pipe, i; + __u16 psize; + __u32 size; + + /* Compute the bulk URB size. Some devices set the maximum payload + * size to a value too high for memory-constrained devices. We must + * then transfer the payload accross multiple URBs. To be consistant + * with isochronous mode, allocate maximum UVC_MAX_ISO_PACKETS per bulk + * URB. + */ + psize = le16_to_cpu(ep->desc.wMaxPacketSize) & 0x07ff; + size = video->streaming->ctrl.dwMaxPayloadTransferSize; + video->bulk.max_payload_size = size; + if (size > psize * UVC_MAX_ISO_PACKETS) + size = psize * UVC_MAX_ISO_PACKETS; + + pipe = usb_rcvbulkpipe(video->dev->udev, ep->desc.bEndpointAddress); + + for (i = 0; i < UVC_URBS; ++i) { + urb = usb_alloc_urb(0, GFP_KERNEL); + if (urb == NULL) { + uvc_uninit_video(video); + return -ENOMEM; + } + + video->urb_buffer[i] = usb_buffer_alloc(video->dev->udev, + size, GFP_KERNEL, &urb->transfer_dma); + if (video->urb_buffer[i] == NULL) { + usb_free_urb(urb); + uvc_uninit_video(video); + return -ENOMEM; + } + + usb_fill_bulk_urb(urb, video->dev->udev, pipe, + video->urb_buffer[i], size, uvc_video_complete, + video); + urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; + + video->urb[i] = urb; + } + + return 0; +} + +/* + * Initialize isochronous/bulk URBs and allocate transfer buffers. + */ +static int uvc_init_video(struct uvc_video_device *video) +{ + struct usb_interface *intf = video->streaming->intf; + struct usb_host_interface *alts; + struct usb_host_endpoint *ep = NULL; + int intfnum = video->streaming->intfnum; + unsigned int bandwidth, psize, i; + int ret; + + video->last_fid = -1; + video->bulk.header_size = 0; + video->bulk.skip_payload = 0; + video->bulk.payload_size = 0; + + if (intf->num_altsetting > 1) { + /* Isochronous endpoint, select the alternate setting. */ + bandwidth = video->streaming->ctrl.dwMaxPayloadTransferSize; + + if (bandwidth == 0) { + uvc_printk(KERN_WARNING, "device %s requested null " + "bandwidth, defaulting to lowest.\n", + video->vdev->name); + bandwidth = 1; + } + + for (i = 0; i < intf->num_altsetting; ++i) { + alts = &intf->altsetting[i]; + ep = uvc_find_endpoint(alts, + video->streaming->header.bEndpointAddress); + if (ep == NULL) + continue; + + /* Check if the bandwidth is high enough. */ + psize = le16_to_cpu(ep->desc.wMaxPacketSize); + psize = (psize & 0x07ff) * (1 + ((psize >> 11) & 3)); + if (psize >= bandwidth) + break; + } + + if (i >= intf->num_altsetting) + return -EIO; + + if ((ret = usb_set_interface(video->dev->udev, intfnum, i)) < 0) + return ret; + + ret = uvc_init_video_isoc(video, ep); + } else { + /* Bulk endpoint, proceed to URB initialization. */ + ep = uvc_find_endpoint(&intf->altsetting[0], + video->streaming->header.bEndpointAddress); + if (ep == NULL) + return -EIO; + + ret = uvc_init_video_bulk(video, ep); + } + + if (ret < 0) + return ret; + + /* Submit the URBs. */ + for (i = 0; i < UVC_URBS; ++i) { + if ((ret = usb_submit_urb(video->urb[i], GFP_KERNEL)) < 0) { + uvc_printk(KERN_ERR, "Failed to submit URB %u " + "(%d).\n", i, ret); + uvc_uninit_video(video); + return ret; + } + } + + return 0; +} + +/* -------------------------------------------------------------------------- + * Suspend/resume + */ + +/* + * Stop streaming without disabling the video queue. + * + * To let userspace applications resume without trouble, we must not touch the + * video buffers in any way. We mark the device as frozen to make sure the URB + * completion handler won't try to cancel the queue when we kill the URBs. + */ +int uvc_video_suspend(struct uvc_video_device *video) +{ + if (!uvc_queue_streaming(&video->queue)) + return 0; + + video->frozen = 1; + uvc_uninit_video(video); + usb_set_interface(video->dev->udev, video->streaming->intfnum, 0); + return 0; +} + +/* + * Reconfigure the video interface and restart streaming if it was enable + * before suspend. + * + * If an error occurs, disable the video queue. This will wake all pending + * buffers, making sure userspace applications are notified of the problem + * instead of waiting forever. + */ +int uvc_video_resume(struct uvc_video_device *video) +{ + int ret; + + video->frozen = 0; + + if ((ret = uvc_set_video_ctrl(video, &video->streaming->ctrl, 0)) < 0) { + uvc_queue_enable(&video->queue, 0); + return ret; + } + + if (!uvc_queue_streaming(&video->queue)) + return 0; + + if ((ret = uvc_init_video(video)) < 0) + uvc_queue_enable(&video->queue, 0); + + return ret; +} + +/* ------------------------------------------------------------------------ + * Video device + */ + +/* + * Initialize the UVC video device by retrieving the default format and + * committing it. + * + * Some cameras (namely the Fuji Finepix) set the format and frame + * indexes to zero. The UVC standard doesn't clearly make this a spec + * violation, so try to silently fix the values if possible. + * + * This function is called before registering the device with V4L. + */ +int uvc_video_init(struct uvc_video_device *video) +{ + struct uvc_streaming_control *probe = &video->streaming->ctrl; + struct uvc_format *format = NULL; + struct uvc_frame *frame = NULL; + unsigned int i; + int ret; + + if (video->streaming->nformats == 0) { + uvc_printk(KERN_INFO, "No supported video formats found.\n"); + return -EINVAL; + } + + /* Alternate setting 0 should be the default, yet the XBox Live Vision + * Cam (and possibly other devices) crash or otherwise misbehave if + * they don't receive a SET_INTERFACE request before any other video + * control request. + */ + usb_set_interface(video->dev->udev, video->streaming->intfnum, 0); + + /* Some webcams don't suport GET_DEF request on the probe control. We + * fall back to GET_CUR if GET_DEF fails. + */ + if ((ret = uvc_get_video_ctrl(video, probe, 1, GET_DEF)) < 0 && + (ret = uvc_get_video_ctrl(video, probe, 1, GET_CUR)) < 0) + return ret; + + /* Check if the default format descriptor exists. Use the first + * available format otherwise. + */ + for (i = video->streaming->nformats; i > 0; --i) { + format = &video->streaming->format[i-1]; + if (format->index == probe->bFormatIndex) + break; + } + + if (format->nframes == 0) { + uvc_printk(KERN_INFO, "No frame descriptor found for the " + "default format.\n"); + return -EINVAL; + } + + /* Zero bFrameIndex might be correct. Stream-based formats (including + * MPEG-2 TS and DV) do not support frames but have a dummy frame + * descriptor with bFrameIndex set to zero. If the default frame + * descriptor is not found, use the first avalable frame. + */ + for (i = format->nframes; i > 0; --i) { + frame = &format->frame[i-1]; + if (frame->bFrameIndex == probe->bFrameIndex) + break; + } + + /* Commit the default settings. */ + probe->bFormatIndex = format->index; + probe->bFrameIndex = frame->bFrameIndex; + if ((ret = uvc_set_video_ctrl(video, probe, 0)) < 0) + return ret; + + video->streaming->cur_format = format; + video->streaming->cur_frame = frame; + atomic_set(&video->active, 0); + + /* Select the video decoding function */ + if (video->dev->quirks & UVC_QUIRK_BUILTIN_ISIGHT) + video->decode = uvc_video_decode_isight; + else if (video->streaming->intf->num_altsetting > 1) + video->decode = uvc_video_decode_isoc; + else + video->decode = uvc_video_decode_bulk; + + return 0; +} + +/* + * Enable or disable the video stream. + */ +int uvc_video_enable(struct uvc_video_device *video, int enable) +{ + int ret; + + if (!enable) { + uvc_uninit_video(video); + usb_set_interface(video->dev->udev, + video->streaming->intfnum, 0); + uvc_queue_enable(&video->queue, 0); + return 0; + } + + if ((ret = uvc_queue_enable(&video->queue, 1)) < 0) + return ret; + + return uvc_init_video(video); +} diff --git a/drivers/media/video/uvc/uvcvideo.h b/drivers/media/video/uvc/uvcvideo.h new file mode 100644 index 00000000000..a995a780db1 --- /dev/null +++ b/drivers/media/video/uvc/uvcvideo.h @@ -0,0 +1,796 @@ +#ifndef _USB_VIDEO_H_ +#define _USB_VIDEO_H_ + +#include <linux/kernel.h> +#include <linux/videodev2.h> + + +/* + * Dynamic controls + */ + +/* Data types for UVC control data */ +#define UVC_CTRL_DATA_TYPE_RAW 0 +#define UVC_CTRL_DATA_TYPE_SIGNED 1 +#define UVC_CTRL_DATA_TYPE_UNSIGNED 2 +#define UVC_CTRL_DATA_TYPE_BOOLEAN 3 +#define UVC_CTRL_DATA_TYPE_ENUM 4 +#define UVC_CTRL_DATA_TYPE_BITMASK 5 + +/* Control flags */ +#define UVC_CONTROL_SET_CUR (1 << 0) +#define UVC_CONTROL_GET_CUR (1 << 1) +#define UVC_CONTROL_GET_MIN (1 << 2) +#define UVC_CONTROL_GET_MAX (1 << 3) +#define UVC_CONTROL_GET_RES (1 << 4) +#define UVC_CONTROL_GET_DEF (1 << 5) +/* Control should be saved at suspend and restored at resume. */ +#define UVC_CONTROL_RESTORE (1 << 6) +/* Control can be updated by the camera. */ +#define UVC_CONTROL_AUTO_UPDATE (1 << 7) + +#define UVC_CONTROL_GET_RANGE (UVC_CONTROL_GET_CUR | UVC_CONTROL_GET_MIN | \ + UVC_CONTROL_GET_MAX | UVC_CONTROL_GET_RES | \ + UVC_CONTROL_GET_DEF) + +struct uvc_xu_control_info { + __u8 entity[16]; + __u8 index; + __u8 selector; + __u16 size; + __u32 flags; +}; + +struct uvc_xu_control_mapping { + __u32 id; + __u8 name[32]; + __u8 entity[16]; + __u8 selector; + + __u8 size; + __u8 offset; + enum v4l2_ctrl_type v4l2_type; + __u32 data_type; +}; + +struct uvc_xu_control { + __u8 unit; + __u8 selector; + __u16 size; + __u8 __user *data; +}; + +#define UVCIOC_CTRL_ADD _IOW('U', 1, struct uvc_xu_control_info) +#define UVCIOC_CTRL_MAP _IOWR('U', 2, struct uvc_xu_control_mapping) +#define UVCIOC_CTRL_GET _IOWR('U', 3, struct uvc_xu_control) +#define UVCIOC_CTRL_SET _IOW('U', 4, struct uvc_xu_control) + +#ifdef __KERNEL__ + +#include <linux/poll.h> + +/* -------------------------------------------------------------------------- + * UVC constants + */ + +#define SC_UNDEFINED 0x00 +#define SC_VIDEOCONTROL 0x01 +#define SC_VIDEOSTREAMING 0x02 +#define SC_VIDEO_INTERFACE_COLLECTION 0x03 + +#define PC_PROTOCOL_UNDEFINED 0x00 + +#define CS_UNDEFINED 0x20 +#define CS_DEVICE 0x21 +#define CS_CONFIGURATION 0x22 +#define CS_STRING 0x23 +#define CS_INTERFACE 0x24 +#define CS_ENDPOINT 0x25 + +/* VideoControl class specific interface descriptor */ +#define VC_DESCRIPTOR_UNDEFINED 0x00 +#define VC_HEADER 0x01 +#define VC_INPUT_TERMINAL 0x02 +#define VC_OUTPUT_TERMINAL 0x03 +#define VC_SELECTOR_UNIT 0x04 +#define VC_PROCESSING_UNIT 0x05 +#define VC_EXTENSION_UNIT 0x06 + +/* VideoStreaming class specific interface descriptor */ +#define VS_UNDEFINED 0x00 +#define VS_INPUT_HEADER 0x01 +#define VS_OUTPUT_HEADER 0x02 +#define VS_STILL_IMAGE_FRAME 0x03 +#define VS_FORMAT_UNCOMPRESSED 0x04 +#define VS_FRAME_UNCOMPRESSED 0x05 +#define VS_FORMAT_MJPEG 0x06 +#define VS_FRAME_MJPEG 0x07 +#define VS_FORMAT_MPEG2TS 0x0a +#define VS_FORMAT_DV 0x0c +#define VS_COLORFORMAT 0x0d +#define VS_FORMAT_FRAME_BASED 0x10 +#define VS_FRAME_FRAME_BASED 0x11 +#define VS_FORMAT_STREAM_BASED 0x12 + +/* Endpoint type */ +#define EP_UNDEFINED 0x00 +#define EP_GENERAL 0x01 +#define EP_ENDPOINT 0x02 +#define EP_INTERRUPT 0x03 + +/* Request codes */ +#define RC_UNDEFINED 0x00 +#define SET_CUR 0x01 +#define GET_CUR 0x81 +#define GET_MIN 0x82 +#define GET_MAX 0x83 +#define GET_RES 0x84 +#define GET_LEN 0x85 +#define GET_INFO 0x86 +#define GET_DEF 0x87 + +/* VideoControl interface controls */ +#define VC_CONTROL_UNDEFINED 0x00 +#define VC_VIDEO_POWER_MODE_CONTROL 0x01 +#define VC_REQUEST_ERROR_CODE_CONTROL 0x02 + +/* Terminal controls */ +#define TE_CONTROL_UNDEFINED 0x00 + +/* Selector Unit controls */ +#define SU_CONTROL_UNDEFINED 0x00 +#define SU_INPUT_SELECT_CONTROL 0x01 + +/* Camera Terminal controls */ +#define CT_CONTROL_UNDEFINED 0x00 +#define CT_SCANNING_MODE_CONTROL 0x01 +#define CT_AE_MODE_CONTROL 0x02 +#define CT_AE_PRIORITY_CONTROL 0x03 +#define CT_EXPOSURE_TIME_ABSOLUTE_CONTROL 0x04 +#define CT_EXPOSURE_TIME_RELATIVE_CONTROL 0x05 +#define CT_FOCUS_ABSOLUTE_CONTROL 0x06 +#define CT_FOCUS_RELATIVE_CONTROL 0x07 +#define CT_FOCUS_AUTO_CONTROL 0x08 +#define CT_IRIS_ABSOLUTE_CONTROL 0x09 +#define CT_IRIS_RELATIVE_CONTROL 0x0a +#define CT_ZOOM_ABSOLUTE_CONTROL 0x0b +#define CT_ZOOM_RELATIVE_CONTROL 0x0c +#define CT_PANTILT_ABSOLUTE_CONTROL 0x0d +#define CT_PANTILT_RELATIVE_CONTROL 0x0e +#define CT_ROLL_ABSOLUTE_CONTROL 0x0f +#define CT_ROLL_RELATIVE_CONTROL 0x10 +#define CT_PRIVACY_CONTROL 0x11 + +/* Processing Unit controls */ +#define PU_CONTROL_UNDEFINED 0x00 +#define PU_BACKLIGHT_COMPENSATION_CONTROL 0x01 +#define PU_BRIGHTNESS_CONTROL 0x02 +#define PU_CONTRAST_CONTROL 0x03 +#define PU_GAIN_CONTROL 0x04 +#define PU_POWER_LINE_FREQUENCY_CONTROL 0x05 +#define PU_HUE_CONTROL 0x06 +#define PU_SATURATION_CONTROL 0x07 +#define PU_SHARPNESS_CONTROL 0x08 +#define PU_GAMMA_CONTROL 0x09 +#define PU_WHITE_BALANCE_TEMPERATURE_CONTROL 0x0a +#define PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL 0x0b +#define PU_WHITE_BALANCE_COMPONENT_CONTROL 0x0c +#define PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL 0x0d +#define PU_DIGITAL_MULTIPLIER_CONTROL 0x0e +#define PU_DIGITAL_MULTIPLIER_LIMIT_CONTROL 0x0f +#define PU_HUE_AUTO_CONTROL 0x10 +#define PU_ANALOG_VIDEO_STANDARD_CONTROL 0x11 +#define PU_ANALOG_LOCK_STATUS_CONTROL 0x12 + +#define LXU_MOTOR_PANTILT_RELATIVE_CONTROL 0x01 +#define LXU_MOTOR_PANTILT_RESET_CONTROL 0x02 +#define LXU_MOTOR_FOCUS_MOTOR_CONTROL 0x03 + +/* VideoStreaming interface controls */ +#define VS_CONTROL_UNDEFINED 0x00 +#define VS_PROBE_CONTROL 0x01 +#define VS_COMMIT_CONTROL 0x02 +#define VS_STILL_PROBE_CONTROL 0x03 +#define VS_STILL_COMMIT_CONTROL 0x04 +#define VS_STILL_IMAGE_TRIGGER_CONTROL 0x05 +#define VS_STREAM_ERROR_CODE_CONTROL 0x06 +#define VS_GENERATE_KEY_FRAME_CONTROL 0x07 +#define VS_UPDATE_FRAME_SEGMENT_CONTROL 0x08 +#define VS_SYNC_DELAY_CONTROL 0x09 + +#define TT_VENDOR_SPECIFIC 0x0100 +#define TT_STREAMING 0x0101 + +/* Input Terminal types */ +#define ITT_VENDOR_SPECIFIC 0x0200 +#define ITT_CAMERA 0x0201 +#define ITT_MEDIA_TRANSPORT_INPUT 0x0202 + +/* Output Terminal types */ +#define OTT_VENDOR_SPECIFIC 0x0300 +#define OTT_DISPLAY 0x0301 +#define OTT_MEDIA_TRANSPORT_OUTPUT 0x0302 + +/* External Terminal types */ +#define EXTERNAL_VENDOR_SPECIFIC 0x0400 +#define COMPOSITE_CONNECTOR 0x0401 +#define SVIDEO_CONNECTOR 0x0402 +#define COMPONENT_CONNECTOR 0x0403 + +#define UVC_TERM_INPUT 0x0000 +#define UVC_TERM_OUTPUT 0x8000 + +#define UVC_ENTITY_TYPE(entity) ((entity)->type & 0x7fff) +#define UVC_ENTITY_IS_UNIT(entity) (((entity)->type & 0xff00) == 0) +#define UVC_ENTITY_IS_TERM(entity) (((entity)->type & 0xff00) != 0) +#define UVC_ENTITY_IS_ITERM(entity) \ + (((entity)->type & 0x8000) == UVC_TERM_INPUT) +#define UVC_ENTITY_IS_OTERM(entity) \ + (((entity)->type & 0x8000) == UVC_TERM_OUTPUT) + +#define UVC_STATUS_TYPE_CONTROL 1 +#define UVC_STATUS_TYPE_STREAMING 2 + +/* ------------------------------------------------------------------------ + * GUIDs + */ +#define UVC_GUID_UVC_CAMERA \ + {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01} +#define UVC_GUID_UVC_OUTPUT \ + {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02} +#define UVC_GUID_UVC_MEDIA_TRANSPORT_INPUT \ + {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03} +#define UVC_GUID_UVC_PROCESSING \ + {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01} +#define UVC_GUID_UVC_SELECTOR \ + {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02} + +#define UVC_GUID_LOGITECH_DEV_INFO \ + {0x82, 0x06, 0x61, 0x63, 0x70, 0x50, 0xab, 0x49, \ + 0xb8, 0xcc, 0xb3, 0x85, 0x5e, 0x8d, 0x22, 0x1e} +#define UVC_GUID_LOGITECH_USER_HW \ + {0x82, 0x06, 0x61, 0x63, 0x70, 0x50, 0xab, 0x49, \ + 0xb8, 0xcc, 0xb3, 0x85, 0x5e, 0x8d, 0x22, 0x1f} +#define UVC_GUID_LOGITECH_VIDEO \ + {0x82, 0x06, 0x61, 0x63, 0x70, 0x50, 0xab, 0x49, \ + 0xb8, 0xcc, 0xb3, 0x85, 0x5e, 0x8d, 0x22, 0x50} +#define UVC_GUID_LOGITECH_MOTOR \ + {0x82, 0x06, 0x61, 0x63, 0x70, 0x50, 0xab, 0x49, \ + 0xb8, 0xcc, 0xb3, 0x85, 0x5e, 0x8d, 0x22, 0x56} + +#define UVC_GUID_FORMAT_MJPEG \ + { 'M', 'J', 'P', 'G', 0x00, 0x00, 0x10, 0x00, \ + 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} +#define UVC_GUID_FORMAT_YUY2 \ + { 'Y', 'U', 'Y', '2', 0x00, 0x00, 0x10, 0x00, \ + 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} +#define UVC_GUID_FORMAT_NV12 \ + { 'N', 'V', '1', '2', 0x00, 0x00, 0x10, 0x00, \ + 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} +#define UVC_GUID_FORMAT_YV12 \ + { 'Y', 'V', '1', '2', 0x00, 0x00, 0x10, 0x00, \ + 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} +#define UVC_GUID_FORMAT_I420 \ + { 'I', '4', '2', '0', 0x00, 0x00, 0x10, 0x00, \ + 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} +#define UVC_GUID_FORMAT_UYVY \ + { 'U', 'Y', 'V', 'Y', 0x00, 0x00, 0x10, 0x00, \ + 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} +#define UVC_GUID_FORMAT_Y800 \ + { 'Y', '8', '0', '0', 0x00, 0x00, 0x10, 0x00, \ + 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} +#define UVC_GUID_FORMAT_BY8 \ + { 'B', 'Y', '8', ' ', 0x00, 0x00, 0x10, 0x00, \ + 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71} + + +/* ------------------------------------------------------------------------ + * Driver specific constants. + */ + +#define DRIVER_VERSION_NUMBER KERNEL_VERSION(0, 1, 0) + +/* Number of isochronous URBs. */ +#define UVC_URBS 5 +/* Maximum number of packets per isochronous URB. */ +#define UVC_MAX_ISO_PACKETS 40 +/* Maximum frame size in bytes, for sanity checking. */ +#define UVC_MAX_FRAME_SIZE (16*1024*1024) +/* Maximum number of video buffers. */ +#define UVC_MAX_VIDEO_BUFFERS 32 + +#define UVC_CTRL_CONTROL_TIMEOUT 300 +#define UVC_CTRL_STREAMING_TIMEOUT 1000 + +/* Devices quirks */ +#define UVC_QUIRK_STATUS_INTERVAL 0x00000001 +#define UVC_QUIRK_PROBE_MINMAX 0x00000002 +#define UVC_QUIRK_PROBE_EXTRAFIELDS 0x00000004 +#define UVC_QUIRK_BUILTIN_ISIGHT 0x00000008 +#define UVC_QUIRK_STREAM_NO_FID 0x00000010 +#define UVC_QUIRK_IGNORE_SELECTOR_UNIT 0x00000020 + +/* Format flags */ +#define UVC_FMT_FLAG_COMPRESSED 0x00000001 +#define UVC_FMT_FLAG_STREAM 0x00000002 + +/* ------------------------------------------------------------------------ + * Structures. + */ + +struct uvc_device; + +/* TODO: Put the most frequently accessed fields at the beginning of + * structures to maximize cache efficiency. + */ +struct uvc_streaming_control { + __u16 bmHint; + __u8 bFormatIndex; + __u8 bFrameIndex; + __u32 dwFrameInterval; + __u16 wKeyFrameRate; + __u16 wPFrameRate; + __u16 wCompQuality; + __u16 wCompWindowSize; + __u16 wDelay; + __u32 dwMaxVideoFrameSize; + __u32 dwMaxPayloadTransferSize; + __u32 dwClockFrequency; + __u8 bmFramingInfo; + __u8 bPreferedVersion; + __u8 bMinVersion; + __u8 bMaxVersion; +}; + +struct uvc_menu_info { + __u32 value; + __u8 name[32]; +}; + +struct uvc_control_info { + struct list_head list; + struct list_head mappings; + + __u8 entity[16]; + __u8 index; + __u8 selector; + + __u16 size; + __u32 flags; +}; + +struct uvc_control_mapping { + struct list_head list; + + struct uvc_control_info *ctrl; + + __u32 id; + __u8 name[32]; + __u8 entity[16]; + __u8 selector; + + __u8 size; + __u8 offset; + enum v4l2_ctrl_type v4l2_type; + __u32 data_type; + + struct uvc_menu_info *menu_info; + __u32 menu_count; +}; + +struct uvc_control { + struct uvc_entity *entity; + struct uvc_control_info *info; + + __u8 index; /* Used to match the uvc_control entry with a + uvc_control_info. */ + __u8 dirty : 1, + loaded : 1, + modified : 1; + + __u8 *data; +}; + +struct uvc_format_desc { + char *name; + __u8 guid[16]; + __u32 fcc; +}; + +/* The term 'entity' refers to both UVC units and UVC terminals. + * + * The type field is either the terminal type (wTerminalType in the terminal + * descriptor), or the unit type (bDescriptorSubtype in the unit descriptor). + * As the bDescriptorSubtype field is one byte long, the type value will + * always have a null MSB for units. All terminal types defined by the UVC + * specification have a non-null MSB, so it is safe to use the MSB to + * differentiate between units and terminals as long as the descriptor parsing + * code makes sure terminal types have a non-null MSB. + * + * For terminals, the type's most significant bit stores the terminal + * direction (either UVC_TERM_INPUT or UVC_TERM_OUTPUT). The type field should + * always be accessed with the UVC_ENTITY_* macros and never directly. + */ + +struct uvc_entity { + struct list_head list; /* Entity as part of a UVC device. */ + struct list_head chain; /* Entity as part of a video device + * chain. */ + __u8 id; + __u16 type; + char name[64]; + + union { + struct { + __u16 wObjectiveFocalLengthMin; + __u16 wObjectiveFocalLengthMax; + __u16 wOcularFocalLength; + __u8 bControlSize; + __u8 *bmControls; + } camera; + + struct { + __u8 bControlSize; + __u8 *bmControls; + __u8 bTransportModeSize; + __u8 *bmTransportModes; + } media; + + struct { + __u8 bSourceID; + } output; + + struct { + __u8 bSourceID; + __u16 wMaxMultiplier; + __u8 bControlSize; + __u8 *bmControls; + __u8 bmVideoStandards; + } processing; + + struct { + __u8 bNrInPins; + __u8 *baSourceID; + } selector; + + struct { + __u8 guidExtensionCode[16]; + __u8 bNumControls; + __u8 bNrInPins; + __u8 *baSourceID; + __u8 bControlSize; + __u8 *bmControls; + __u8 *bmControlsType; + } extension; + }; + + unsigned int ncontrols; + struct uvc_control *controls; +}; + +struct uvc_frame { + __u8 bFrameIndex; + __u8 bmCapabilities; + __u16 wWidth; + __u16 wHeight; + __u32 dwMinBitRate; + __u32 dwMaxBitRate; + __u32 dwMaxVideoFrameBufferSize; + __u8 bFrameIntervalType; + __u32 dwDefaultFrameInterval; + __u32 *dwFrameInterval; +}; + +struct uvc_format { + __u8 type; + __u8 index; + __u8 bpp; + __u8 colorspace; + __u32 fcc; + __u32 flags; + + char name[32]; + + unsigned int nframes; + struct uvc_frame *frame; +}; + +struct uvc_streaming_header { + __u8 bNumFormats; + __u8 bEndpointAddress; + __u8 bTerminalLink; + __u8 bControlSize; + __u8 *bmaControls; + /* The following fields are used by input headers only. */ + __u8 bmInfo; + __u8 bStillCaptureMethod; + __u8 bTriggerSupport; + __u8 bTriggerUsage; +}; + +struct uvc_streaming { + struct list_head list; + + struct usb_interface *intf; + int intfnum; + __u16 maxpsize; + + struct uvc_streaming_header header; + + unsigned int nformats; + struct uvc_format *format; + + struct uvc_streaming_control ctrl; + struct uvc_format *cur_format; + struct uvc_frame *cur_frame; + + struct mutex mutex; +}; + +enum uvc_buffer_state { + UVC_BUF_STATE_IDLE = 0, + UVC_BUF_STATE_QUEUED = 1, + UVC_BUF_STATE_ACTIVE = 2, + UVC_BUF_STATE_DONE = 3, + UVC_BUF_STATE_ERROR = 4, +}; + +struct uvc_buffer { + unsigned long vma_use_count; + struct list_head stream; + + /* Touched by interrupt handler. */ + struct v4l2_buffer buf; + struct list_head queue; + wait_queue_head_t wait; + enum uvc_buffer_state state; +}; + +#define UVC_QUEUE_STREAMING (1 << 0) +#define UVC_QUEUE_DISCONNECTED (1 << 1) +#define UVC_QUEUE_DROP_INCOMPLETE (1 << 2) + +struct uvc_video_queue { + void *mem; + unsigned int flags; + __u32 sequence; + + unsigned int count; + unsigned int buf_size; + struct uvc_buffer buffer[UVC_MAX_VIDEO_BUFFERS]; + struct mutex mutex; /* protects buffers and mainqueue */ + spinlock_t irqlock; /* protects irqqueue */ + + struct list_head mainqueue; + struct list_head irqqueue; +}; + +struct uvc_video_device { + struct uvc_device *dev; + struct video_device *vdev; + atomic_t active; + unsigned int frozen : 1; + + struct list_head iterms; + struct uvc_entity *oterm; + struct uvc_entity *processing; + struct uvc_entity *selector; + struct list_head extensions; + struct mutex ctrl_mutex; + + struct uvc_video_queue queue; + + /* Video streaming object, must always be non-NULL. */ + struct uvc_streaming *streaming; + + void (*decode) (struct urb *urb, struct uvc_video_device *video, + struct uvc_buffer *buf); + + /* Context data used by the bulk completion handler. */ + struct { + __u8 header[256]; + unsigned int header_size; + int skip_payload; + __u32 payload_size; + __u32 max_payload_size; + } bulk; + + struct urb *urb[UVC_URBS]; + char *urb_buffer[UVC_URBS]; + + __u8 last_fid; +}; + +enum uvc_device_state { + UVC_DEV_DISCONNECTED = 1, +}; + +struct uvc_device { + struct usb_device *udev; + struct usb_interface *intf; + __u32 quirks; + int intfnum; + char name[32]; + + enum uvc_device_state state; + struct kref kref; + struct list_head list; + + /* Video control interface */ + __u16 uvc_version; + __u32 clock_frequency; + + struct list_head entities; + + struct uvc_video_device video; + + /* Status Interrupt Endpoint */ + struct usb_host_endpoint *int_ep; + struct urb *int_urb; + __u8 status[16]; + struct input_dev *input; + + /* Video Streaming interfaces */ + struct list_head streaming; +}; + +enum uvc_handle_state { + UVC_HANDLE_PASSIVE = 0, + UVC_HANDLE_ACTIVE = 1, +}; + +struct uvc_fh { + struct uvc_video_device *device; + enum uvc_handle_state state; +}; + +struct uvc_driver { + struct usb_driver driver; + + struct mutex open_mutex; /* protects from open/disconnect race */ + + struct list_head devices; /* struct uvc_device list */ + struct list_head controls; /* struct uvc_control_info list */ + struct mutex ctrl_mutex; /* protects controls and devices + lists */ +}; + +/* ------------------------------------------------------------------------ + * Debugging, printing and logging + */ + +#define UVC_TRACE_PROBE (1 << 0) +#define UVC_TRACE_DESCR (1 << 1) +#define UVC_TRACE_CONTROL (1 << 2) +#define UVC_TRACE_FORMAT (1 << 3) +#define UVC_TRACE_CAPTURE (1 << 4) +#define UVC_TRACE_CALLS (1 << 5) +#define UVC_TRACE_IOCTL (1 << 6) +#define UVC_TRACE_FRAME (1 << 7) +#define UVC_TRACE_SUSPEND (1 << 8) +#define UVC_TRACE_STATUS (1 << 9) + +extern unsigned int uvc_trace_param; + +#define uvc_trace(flag, msg...) \ + do { \ + if (uvc_trace_param & flag) \ + printk(KERN_DEBUG "uvcvideo: " msg); \ + } while (0) + +#define uvc_printk(level, msg...) \ + printk(level "uvcvideo: " msg) + +#define UVC_GUID_FORMAT "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-" \ + "%02x%02x%02x%02x%02x%02x" +#define UVC_GUID_ARGS(guid) \ + (guid)[3], (guid)[2], (guid)[1], (guid)[0], \ + (guid)[5], (guid)[4], \ + (guid)[7], (guid)[6], \ + (guid)[8], (guid)[9], \ + (guid)[10], (guid)[11], (guid)[12], \ + (guid)[13], (guid)[14], (guid)[15] + +/* -------------------------------------------------------------------------- + * Internal functions. + */ + +/* Core driver */ +extern struct uvc_driver uvc_driver; +extern void uvc_delete(struct kref *kref); + +/* Video buffers queue management. */ +extern void uvc_queue_init(struct uvc_video_queue *queue); +extern int uvc_alloc_buffers(struct uvc_video_queue *queue, + unsigned int nbuffers, unsigned int buflength); +extern int uvc_free_buffers(struct uvc_video_queue *queue); +extern int uvc_query_buffer(struct uvc_video_queue *queue, + struct v4l2_buffer *v4l2_buf); +extern int uvc_queue_buffer(struct uvc_video_queue *queue, + struct v4l2_buffer *v4l2_buf); +extern int uvc_dequeue_buffer(struct uvc_video_queue *queue, + struct v4l2_buffer *v4l2_buf, int nonblocking); +extern int uvc_queue_enable(struct uvc_video_queue *queue, int enable); +extern void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect); +extern struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue, + struct uvc_buffer *buf); +extern unsigned int uvc_queue_poll(struct uvc_video_queue *queue, + struct file *file, poll_table *wait); +static inline int uvc_queue_streaming(struct uvc_video_queue *queue) +{ + return queue->flags & UVC_QUEUE_STREAMING; +} + +/* V4L2 interface */ +extern struct file_operations uvc_fops; + +/* Video */ +extern int uvc_video_init(struct uvc_video_device *video); +extern int uvc_video_suspend(struct uvc_video_device *video); +extern int uvc_video_resume(struct uvc_video_device *video); +extern int uvc_video_enable(struct uvc_video_device *video, int enable); +extern int uvc_probe_video(struct uvc_video_device *video, + struct uvc_streaming_control *probe); +extern int uvc_query_ctrl(struct uvc_device *dev, __u8 query, __u8 unit, + __u8 intfnum, __u8 cs, void *data, __u16 size); +extern int uvc_set_video_ctrl(struct uvc_video_device *video, + struct uvc_streaming_control *ctrl, int probe); + +/* Status */ +extern int uvc_status_init(struct uvc_device *dev); +extern void uvc_status_cleanup(struct uvc_device *dev); +extern int uvc_status_suspend(struct uvc_device *dev); +extern int uvc_status_resume(struct uvc_device *dev); + +/* Controls */ +extern struct uvc_control *uvc_find_control(struct uvc_video_device *video, + __u32 v4l2_id, struct uvc_control_mapping **mapping); +extern int uvc_query_v4l2_ctrl(struct uvc_video_device *video, + struct v4l2_queryctrl *v4l2_ctrl); + +extern int uvc_ctrl_add_info(struct uvc_control_info *info); +extern int uvc_ctrl_add_mapping(struct uvc_control_mapping *mapping); +extern int uvc_ctrl_init_device(struct uvc_device *dev); +extern void uvc_ctrl_cleanup_device(struct uvc_device *dev); +extern int uvc_ctrl_resume_device(struct uvc_device *dev); +extern void uvc_ctrl_init(void); + +extern int uvc_ctrl_begin(struct uvc_video_device *video); +extern int __uvc_ctrl_commit(struct uvc_video_device *video, int rollback); +static inline int uvc_ctrl_commit(struct uvc_video_device *video) +{ + return __uvc_ctrl_commit(video, 0); +} +static inline int uvc_ctrl_rollback(struct uvc_video_device *video) +{ + return __uvc_ctrl_commit(video, 1); +} + +extern int uvc_ctrl_get(struct uvc_video_device *video, + struct v4l2_ext_control *xctrl); +extern int uvc_ctrl_set(struct uvc_video_device *video, + struct v4l2_ext_control *xctrl); + +extern int uvc_xu_ctrl_query(struct uvc_video_device *video, + struct uvc_xu_control *ctrl, int set); + +/* Utility functions */ +extern void uvc_simplify_fraction(uint32_t *numerator, uint32_t *denominator, + unsigned int n_terms, unsigned int threshold); +extern uint32_t uvc_fraction_to_interval(uint32_t numerator, + uint32_t denominator); +extern struct usb_host_endpoint *uvc_find_endpoint( + struct usb_host_interface *alts, __u8 epaddr); + +/* Quirks support */ +void uvc_video_decode_isight(struct urb *urb, struct uvc_video_device *video, + struct uvc_buffer *buf); + +#endif /* __KERNEL__ */ + +#endif diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c index 31e8af0ba27..67a661cf521 100644 --- a/drivers/media/video/videodev.c +++ b/drivers/media/video/videodev.c @@ -51,12 +51,51 @@ #define VIDEO_NUM_DEVICES 256 #define VIDEO_NAME "video4linux" +struct std_descr { + v4l2_std_id std; + const char *descr; +}; + +static const struct std_descr standards[] = { + { V4L2_STD_NTSC, "NTSC" }, + { V4L2_STD_NTSC_M, "NTSC-M" }, + { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" }, + { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" }, + { V4L2_STD_NTSC_443, "NTSC-443" }, + { V4L2_STD_PAL, "PAL" }, + { V4L2_STD_PAL_BG, "PAL-BG" }, + { V4L2_STD_PAL_B, "PAL-B" }, + { V4L2_STD_PAL_B1, "PAL-B1" }, + { V4L2_STD_PAL_G, "PAL-G" }, + { V4L2_STD_PAL_H, "PAL-H" }, + { V4L2_STD_PAL_I, "PAL-I" }, + { V4L2_STD_PAL_DK, "PAL-DK" }, + { V4L2_STD_PAL_D, "PAL-D" }, + { V4L2_STD_PAL_D1, "PAL-D1" }, + { V4L2_STD_PAL_K, "PAL-K" }, + { V4L2_STD_PAL_M, "PAL-M" }, + { V4L2_STD_PAL_N, "PAL-N" }, + { V4L2_STD_PAL_Nc, "PAL-Nc" }, + { V4L2_STD_PAL_60, "PAL-60" }, + { V4L2_STD_SECAM, "SECAM" }, + { V4L2_STD_SECAM_B, "SECAM-B" }, + { V4L2_STD_SECAM_G, "SECAM-G" }, + { V4L2_STD_SECAM_H, "SECAM-H" }, + { V4L2_STD_SECAM_DK, "SECAM-DK" }, + { V4L2_STD_SECAM_D, "SECAM-D" }, + { V4L2_STD_SECAM_K, "SECAM-K" }, + { V4L2_STD_SECAM_K1, "SECAM-K1" }, + { V4L2_STD_SECAM_L, "SECAM-L" }, + { V4L2_STD_SECAM_LC, "SECAM-Lc" }, + { 0, "Unknown" } +}; + /* video4linux standard ID conversion to standard name */ -char *v4l2_norm_to_name(v4l2_std_id id) +const char *v4l2_norm_to_name(v4l2_std_id id) { - char *name; u32 myid = id; + int i; /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle 64 bit comparations. So, on that architecture, with some gcc @@ -64,110 +103,17 @@ char *v4l2_norm_to_name(v4l2_std_id id) */ BUG_ON(myid != id); - switch (myid) { - case V4L2_STD_PAL: - name = "PAL"; - break; - case V4L2_STD_PAL_BG: - name = "PAL-BG"; - break; - case V4L2_STD_PAL_DK: - name = "PAL-DK"; - break; - case V4L2_STD_PAL_B: - name = "PAL-B"; - break; - case V4L2_STD_PAL_B1: - name = "PAL-B1"; - break; - case V4L2_STD_PAL_G: - name = "PAL-G"; - break; - case V4L2_STD_PAL_H: - name = "PAL-H"; - break; - case V4L2_STD_PAL_I: - name = "PAL-I"; - break; - case V4L2_STD_PAL_D: - name = "PAL-D"; - break; - case V4L2_STD_PAL_D1: - name = "PAL-D1"; - break; - case V4L2_STD_PAL_K: - name = "PAL-K"; - break; - case V4L2_STD_PAL_M: - name = "PAL-M"; - break; - case V4L2_STD_PAL_N: - name = "PAL-N"; - break; - case V4L2_STD_PAL_Nc: - name = "PAL-Nc"; - break; - case V4L2_STD_PAL_60: - name = "PAL-60"; - break; - case V4L2_STD_NTSC: - name = "NTSC"; - break; - case V4L2_STD_NTSC_M: - name = "NTSC-M"; - break; - case V4L2_STD_NTSC_M_JP: - name = "NTSC-M-JP"; - break; - case V4L2_STD_NTSC_443: - name = "NTSC-443"; - break; - case V4L2_STD_NTSC_M_KR: - name = "NTSC-M-KR"; - break; - case V4L2_STD_SECAM: - name = "SECAM"; - break; - case V4L2_STD_SECAM_DK: - name = "SECAM-DK"; - break; - case V4L2_STD_SECAM_B: - name = "SECAM-B"; - break; - case V4L2_STD_SECAM_D: - name = "SECAM-D"; - break; - case V4L2_STD_SECAM_G: - name = "SECAM-G"; - break; - case V4L2_STD_SECAM_H: - name = "SECAM-H"; - break; - case V4L2_STD_SECAM_K: - name = "SECAM-K"; - break; - case V4L2_STD_SECAM_K1: - name = "SECAM-K1"; - break; - case V4L2_STD_SECAM_L: - name = "SECAM-L"; - break; - case V4L2_STD_SECAM_LC: - name = "SECAM-LC"; - break; - default: - name = "Unknown"; - break; - } - - return name; + for (i = 0; standards[i].std; i++) + if (myid == standards[i].std) + break; + return standards[i].descr; } EXPORT_SYMBOL(v4l2_norm_to_name); /* Fill in the fields of a v4l2_standard structure according to the 'id' and 'transmission' parameters. Returns negative on error. */ int v4l2_video_std_construct(struct v4l2_standard *vs, - int id, char *name) + int id, const char *name) { u32 index = vs->index; @@ -1218,95 +1164,40 @@ static int __video_do_ioctl(struct inode *inode, struct file *file, case VIDIOC_ENUMSTD: { struct v4l2_standard *p = arg; - v4l2_std_id id = vfd->tvnorms,curr_id=0; - unsigned int index = p->index,i; - - if (index<0) { - ret=-EINVAL; - break; - } - - /* Return norm array on a canonical way */ - for (i=0;i<= index && id; i++) { - if ( (id & V4L2_STD_PAL) == V4L2_STD_PAL) { - curr_id = V4L2_STD_PAL; - } else if ( (id & V4L2_STD_PAL_BG) == V4L2_STD_PAL_BG) { - curr_id = V4L2_STD_PAL_BG; - } else if ( (id & V4L2_STD_PAL_DK) == V4L2_STD_PAL_DK) { - curr_id = V4L2_STD_PAL_DK; - } else if ( (id & V4L2_STD_PAL_B) == V4L2_STD_PAL_B) { - curr_id = V4L2_STD_PAL_B; - } else if ( (id & V4L2_STD_PAL_B1) == V4L2_STD_PAL_B1) { - curr_id = V4L2_STD_PAL_B1; - } else if ( (id & V4L2_STD_PAL_G) == V4L2_STD_PAL_G) { - curr_id = V4L2_STD_PAL_G; - } else if ( (id & V4L2_STD_PAL_H) == V4L2_STD_PAL_H) { - curr_id = V4L2_STD_PAL_H; - } else if ( (id & V4L2_STD_PAL_I) == V4L2_STD_PAL_I) { - curr_id = V4L2_STD_PAL_I; - } else if ( (id & V4L2_STD_PAL_D) == V4L2_STD_PAL_D) { - curr_id = V4L2_STD_PAL_D; - } else if ( (id & V4L2_STD_PAL_D1) == V4L2_STD_PAL_D1) { - curr_id = V4L2_STD_PAL_D1; - } else if ( (id & V4L2_STD_PAL_K) == V4L2_STD_PAL_K) { - curr_id = V4L2_STD_PAL_K; - } else if ( (id & V4L2_STD_PAL_M) == V4L2_STD_PAL_M) { - curr_id = V4L2_STD_PAL_M; - } else if ( (id & V4L2_STD_PAL_N) == V4L2_STD_PAL_N) { - curr_id = V4L2_STD_PAL_N; - } else if ( (id & V4L2_STD_PAL_Nc) == V4L2_STD_PAL_Nc) { - curr_id = V4L2_STD_PAL_Nc; - } else if ( (id & V4L2_STD_PAL_60) == V4L2_STD_PAL_60) { - curr_id = V4L2_STD_PAL_60; - } else if ( (id & V4L2_STD_NTSC) == V4L2_STD_NTSC) { - curr_id = V4L2_STD_NTSC; - } else if ( (id & V4L2_STD_NTSC_M) == V4L2_STD_NTSC_M) { - curr_id = V4L2_STD_NTSC_M; - } else if ( (id & V4L2_STD_NTSC_M_JP) == V4L2_STD_NTSC_M_JP) { - curr_id = V4L2_STD_NTSC_M_JP; - } else if ( (id & V4L2_STD_NTSC_443) == V4L2_STD_NTSC_443) { - curr_id = V4L2_STD_NTSC_443; - } else if ( (id & V4L2_STD_NTSC_M_KR) == V4L2_STD_NTSC_M_KR) { - curr_id = V4L2_STD_NTSC_M_KR; - } else if ( (id & V4L2_STD_SECAM) == V4L2_STD_SECAM) { - curr_id = V4L2_STD_SECAM; - } else if ( (id & V4L2_STD_SECAM_DK) == V4L2_STD_SECAM_DK) { - curr_id = V4L2_STD_SECAM_DK; - } else if ( (id & V4L2_STD_SECAM_B) == V4L2_STD_SECAM_B) { - curr_id = V4L2_STD_SECAM_B; - } else if ( (id & V4L2_STD_SECAM_D) == V4L2_STD_SECAM_D) { - curr_id = V4L2_STD_SECAM_D; - } else if ( (id & V4L2_STD_SECAM_G) == V4L2_STD_SECAM_G) { - curr_id = V4L2_STD_SECAM_G; - } else if ( (id & V4L2_STD_SECAM_H) == V4L2_STD_SECAM_H) { - curr_id = V4L2_STD_SECAM_H; - } else if ( (id & V4L2_STD_SECAM_K) == V4L2_STD_SECAM_K) { - curr_id = V4L2_STD_SECAM_K; - } else if ( (id & V4L2_STD_SECAM_K1) == V4L2_STD_SECAM_K1) { - curr_id = V4L2_STD_SECAM_K1; - } else if ( (id & V4L2_STD_SECAM_L) == V4L2_STD_SECAM_L) { - curr_id = V4L2_STD_SECAM_L; - } else if ( (id & V4L2_STD_SECAM_LC) == V4L2_STD_SECAM_LC) { - curr_id = V4L2_STD_SECAM_LC; - } else { + v4l2_std_id id = vfd->tvnorms, curr_id = 0; + unsigned int index = p->index, i, j = 0; + const char *descr = ""; + + /* Return norm array in a canonical way */ + for (i = 0; i <= index && id; i++) { + /* last std value in the standards array is 0, so this + while always ends there since (id & 0) == 0. */ + while ((id & standards[j].std) != standards[j].std) + j++; + curr_id = standards[j].std; + descr = standards[j].descr; + j++; + if (curr_id == 0) break; - } - id &= ~curr_id; + if (curr_id != V4L2_STD_PAL && + curr_id != V4L2_STD_SECAM && + curr_id != V4L2_STD_NTSC) + id &= ~curr_id; } - if (i<=index) + if (i <= index) return -EINVAL; - v4l2_video_std_construct(p, curr_id,v4l2_norm_to_name(curr_id)); + v4l2_video_std_construct(p, curr_id, descr); p->index = index; - dbgarg (cmd, "index=%d, id=%Ld, name=%s, fps=%d/%d, " + dbgarg(cmd, "index=%d, id=%Ld, name=%s, fps=%d/%d, " "framelines=%d\n", p->index, (unsigned long long)p->id, p->name, p->frameperiod.numerator, p->frameperiod.denominator, p->framelines); - ret=0; + ret = 0; break; } case VIDIOC_G_STD: diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c index 845be1864f6..5ff9a58b613 100644 --- a/drivers/media/video/vivi.c +++ b/drivers/media/video/vivi.c @@ -327,13 +327,14 @@ static void vivi_fillbuff(struct vivi_dev *dev, struct vivi_buffer *buf) int hmax = buf->vb.height; int wmax = buf->vb.width; struct timeval ts; - char *tmpbuf = kmalloc(wmax * 2, GFP_ATOMIC); + char *tmpbuf; void *vbuf = videobuf_to_vmalloc(&buf->vb); - if (!tmpbuf) + if (!vbuf) return; - if (!vbuf) + tmpbuf = kmalloc(wmax * 2, GFP_ATOMIC); + if (!tmpbuf) return; for (h = 0; h < hmax; h++) { diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c index 65210fca37e..d89475d3698 100644 --- a/drivers/mmc/host/pxamci.c +++ b/drivers/mmc/host/pxamci.c @@ -114,6 +114,7 @@ static void pxamci_setup_data(struct pxamci_host *host, struct mmc_data *data) unsigned int nob = data->blocks; unsigned long long clks; unsigned int timeout; + bool dalgn = 0; u32 dcmd; int i; @@ -152,6 +153,9 @@ static void pxamci_setup_data(struct pxamci_host *host, struct mmc_data *data) host->sg_cpu[i].dcmd = dcmd | length; if (length & 31 && !(data->flags & MMC_DATA_READ)) host->sg_cpu[i].dcmd |= DCMD_ENDIRQEN; + /* Not aligned to 8-byte boundary? */ + if (sg_dma_address(&data->sg[i]) & 0x7) + dalgn = 1; if (data->flags & MMC_DATA_READ) { host->sg_cpu[i].dsadr = host->res->start + MMC_RXFIFO; host->sg_cpu[i].dtadr = sg_dma_address(&data->sg[i]); @@ -165,6 +169,15 @@ static void pxamci_setup_data(struct pxamci_host *host, struct mmc_data *data) host->sg_cpu[host->dma_len - 1].ddadr = DDADR_STOP; wmb(); + /* + * The PXA27x DMA controller encounters overhead when working with + * unaligned (to 8-byte boundaries) data, so switch on byte alignment + * mode only if we have unaligned data. + */ + if (dalgn) + DALGN |= (1 << host->dma); + else + DALGN &= (1 << host->dma); DDADR(host->dma) = host->sg_dma; DCSR(host->dma) = DCSR_RUN; } diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 07c2048b230..b413aa6c246 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -55,6 +55,10 @@ static unsigned int debug_quirks = 0; #define SDHCI_QUIRK_32BIT_DMA_SIZE (1<<7) /* Controller needs to be reset after each request to stay stable */ #define SDHCI_QUIRK_RESET_AFTER_REQUEST (1<<8) +/* Controller needs voltage and power writes to happen separately */ +#define SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER (1<<9) +/* Controller has an off-by-one issue with timeout value */ +#define SDHCI_QUIRK_INCR_TIMEOUT_CONTROL (1<<10) static const struct pci_device_id pci_ids[] __devinitdata = { { @@ -115,7 +119,8 @@ static const struct pci_device_id pci_ids[] __devinitdata = { .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, .driver_data = SDHCI_QUIRK_SINGLE_POWER_WRITE | - SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS, + SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS | + SDHCI_QUIRK_BROKEN_DMA, }, { @@ -124,7 +129,17 @@ static const struct pci_device_id pci_ids[] __devinitdata = { .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, .driver_data = SDHCI_QUIRK_SINGLE_POWER_WRITE | - SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS, + SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS | + SDHCI_QUIRK_BROKEN_DMA, + }, + + { + .vendor = PCI_VENDOR_ID_MARVELL, + .device = PCI_DEVICE_ID_MARVELL_CAFE_SD, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER | + SDHCI_QUIRK_INCR_TIMEOUT_CONTROL, }, { @@ -469,6 +484,13 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data) break; } + /* + * Compensate for an off-by-one error in the CaFe hardware; otherwise, + * a too-small count gives us interrupt timeouts. + */ + if ((host->chip->quirks & SDHCI_QUIRK_INCR_TIMEOUT_CONTROL)) + count++; + if (count >= 0xF) { printk(KERN_WARNING "%s: Too large timeout requested!\n", mmc_hostname(host->mmc)); @@ -774,6 +796,14 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned short power) BUG(); } + /* + * At least the CaFe chip gets confused if we set the voltage + * and set turn on power at the same time, so set the voltage first. + */ + if ((host->chip->quirks & SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER)) + writeb(pwr & ~SDHCI_POWER_ON, + host->ioaddr + SDHCI_POWER_CONTROL); + writeb(pwr, host->ioaddr + SDHCI_POWER_CONTROL); out: diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c index 2edda8cc7f9..aabad8ce745 100644 --- a/drivers/net/3c59x.c +++ b/drivers/net/3c59x.c @@ -1768,9 +1768,10 @@ vortex_timer(unsigned long data) case XCVR_MII: case XCVR_NWAY: { ok = 1; - spin_lock_bh(&vp->lock); + /* Interrupts are already disabled */ + spin_lock(&vp->lock); vortex_check_media(dev, 0); - spin_unlock_bh(&vp->lock); + spin_unlock(&vp->lock); } break; default: /* Other media types handled by Tx timeouts. */ diff --git a/drivers/net/e100.c b/drivers/net/e100.c index f3cba5e24ec..1037b133231 100644 --- a/drivers/net/e100.c +++ b/drivers/net/e100.c @@ -1803,6 +1803,8 @@ static int e100_rx_alloc_skb(struct nic *nic, struct rx *rx) if (rx->prev->skb) { struct rfd *prev_rfd = (struct rfd *)rx->prev->skb->data; put_unaligned_le32(rx->dma_addr, &prev_rfd->link); + pci_dma_sync_single_for_device(nic->pdev, rx->prev->dma_addr, + sizeof(struct rfd), PCI_DMA_TODEVICE); } return 0; diff --git a/drivers/net/e1000/e1000_ethtool.c b/drivers/net/e1000/e1000_ethtool.c index 701531e72e7..a3f6a9c72ec 100644 --- a/drivers/net/e1000/e1000_ethtool.c +++ b/drivers/net/e1000/e1000_ethtool.c @@ -347,7 +347,7 @@ e1000_set_tso(struct net_device *netdev, u32 data) else netdev->features &= ~NETIF_F_TSO; - if (data) + if (data && (adapter->hw.mac_type > e1000_82547_rev_2)) netdev->features |= NETIF_F_TSO6; else netdev->features &= ~NETIF_F_TSO6; diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index cab1835173c..648a87bbf46 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -2535,7 +2535,8 @@ void e1000e_down(struct e1000_adapter *adapter) adapter->link_speed = 0; adapter->link_duplex = 0; - e1000e_reset(adapter); + if (!pci_channel_offline(adapter->pdev)) + e1000e_reset(adapter); e1000_clean_tx_ring(adapter); e1000_clean_rx_ring(adapter); diff --git a/drivers/net/ehea/ehea.h b/drivers/net/ehea/ehea.h index fe872fbd671..e01926b7b5b 100644 --- a/drivers/net/ehea/ehea.h +++ b/drivers/net/ehea/ehea.h @@ -40,7 +40,7 @@ #include <asm/io.h> #define DRV_NAME "ehea" -#define DRV_VERSION "EHEA_0091" +#define DRV_VERSION "EHEA_0092" /* eHEA capability flags */ #define DLPAR_PORT_ADD_REM 1 @@ -452,7 +452,7 @@ struct ehea_bcmc_reg_entry { struct ehea_bcmc_reg_array { struct ehea_bcmc_reg_entry *arr; int num_entries; - struct mutex lock; + spinlock_t lock; }; #define EHEA_PORT_UP 1 @@ -478,6 +478,7 @@ struct ehea_port { int num_add_tx_qps; int num_mcs; int resets; + u64 flags; u64 mac_addr; u32 logical_port_id; u32 port_speed; @@ -501,7 +502,8 @@ struct port_res_cfg { }; enum ehea_flag_bits { - __EHEA_STOP_XFER + __EHEA_STOP_XFER, + __EHEA_DISABLE_PORT_RESET }; void ehea_set_ethtool_ops(struct net_device *netdev); diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c index 075fd547421..0920b796bd7 100644 --- a/drivers/net/ehea/ehea_main.c +++ b/drivers/net/ehea/ehea_main.c @@ -118,6 +118,7 @@ static struct of_device_id ehea_device_table[] = { }, {}, }; +MODULE_DEVICE_TABLE(of, ehea_device_table); static struct of_platform_driver ehea_driver = { .name = "ehea", @@ -137,6 +138,12 @@ void ehea_dump(void *adr, int len, char *msg) } } +void ehea_schedule_port_reset(struct ehea_port *port) +{ + if (!test_bit(__EHEA_DISABLE_PORT_RESET, &port->flags)) + schedule_work(&port->reset_task); +} + static void ehea_update_firmware_handles(void) { struct ehea_fw_handle_entry *arr = NULL; @@ -241,7 +248,7 @@ static void ehea_update_bcmc_registrations(void) } if (num_registrations) { - arr = kzalloc(num_registrations * sizeof(*arr), GFP_KERNEL); + arr = kzalloc(num_registrations * sizeof(*arr), GFP_ATOMIC); if (!arr) return; /* Keep the existing array */ } else @@ -301,7 +308,7 @@ static struct net_device_stats *ehea_get_stats(struct net_device *dev) memset(stats, 0, sizeof(*stats)); - cb2 = kzalloc(PAGE_SIZE, GFP_KERNEL); + cb2 = kzalloc(PAGE_SIZE, GFP_ATOMIC); if (!cb2) { ehea_error("no mem for cb2"); goto out; @@ -587,7 +594,7 @@ static int ehea_treat_poll_error(struct ehea_port_res *pr, int rq, "Resetting port.", pr->qp->init_attr.qp_nr); ehea_dump(cqe, sizeof(*cqe), "CQE"); } - schedule_work(&pr->port->reset_task); + ehea_schedule_port_reset(pr->port); return 1; } @@ -616,7 +623,7 @@ static int get_skb_hdr(struct sk_buff *skb, void **iphdr, *tcph = tcp_hdr(skb); /* check if ip header and tcp header are complete */ - if (iph->tot_len < ip_len + tcp_hdrlen(skb)) + if (ntohs(iph->tot_len) < ip_len + tcp_hdrlen(skb)) return -1; *hdr_flags = LRO_IPV4 | LRO_TCP; @@ -765,7 +772,7 @@ static struct ehea_cqe *ehea_proc_cqes(struct ehea_port_res *pr, int my_quota) ehea_error("Send Completion Error: Resetting port"); if (netif_msg_tx_err(pr->port)) ehea_dump(cqe, sizeof(*cqe), "Send CQE"); - schedule_work(&pr->port->reset_task); + ehea_schedule_port_reset(pr->port); break; } @@ -885,7 +892,7 @@ static irqreturn_t ehea_qp_aff_irq_handler(int irq, void *param) eqe = ehea_poll_eq(port->qp_eq); } - schedule_work(&port->reset_task); + ehea_schedule_port_reset(port); return IRQ_HANDLED; } @@ -1763,7 +1770,7 @@ static int ehea_set_mac_addr(struct net_device *dev, void *sa) memcpy(dev->dev_addr, mac_addr->sa_data, dev->addr_len); - mutex_lock(&ehea_bcmc_regs.lock); + spin_lock(&ehea_bcmc_regs.lock); /* Deregister old MAC in pHYP */ if (port->state == EHEA_PORT_UP) { @@ -1785,7 +1792,7 @@ static int ehea_set_mac_addr(struct net_device *dev, void *sa) out_upregs: ehea_update_bcmc_registrations(); - mutex_unlock(&ehea_bcmc_regs.lock); + spin_unlock(&ehea_bcmc_regs.lock); out_free: kfree(cb0); out: @@ -1947,7 +1954,7 @@ static void ehea_set_multicast_list(struct net_device *dev) } ehea_promiscuous(dev, 0); - mutex_lock(&ehea_bcmc_regs.lock); + spin_lock(&ehea_bcmc_regs.lock); if (dev->flags & IFF_ALLMULTI) { ehea_allmulti(dev, 1); @@ -1978,7 +1985,7 @@ static void ehea_set_multicast_list(struct net_device *dev) } out: ehea_update_bcmc_registrations(); - mutex_unlock(&ehea_bcmc_regs.lock); + spin_unlock(&ehea_bcmc_regs.lock); return; } @@ -2497,7 +2504,7 @@ static int ehea_up(struct net_device *dev) } } - mutex_lock(&ehea_bcmc_regs.lock); + spin_lock(&ehea_bcmc_regs.lock); ret = ehea_broadcast_reg_helper(port, H_REG_BCMC); if (ret) { @@ -2520,7 +2527,7 @@ out: ehea_info("Failed starting %s. ret=%i", dev->name, ret); ehea_update_bcmc_registrations(); - mutex_unlock(&ehea_bcmc_regs.lock); + spin_unlock(&ehea_bcmc_regs.lock); ehea_update_firmware_handles(); mutex_unlock(&ehea_fw_handles.lock); @@ -2575,7 +2582,7 @@ static int ehea_down(struct net_device *dev) mutex_lock(&ehea_fw_handles.lock); - mutex_lock(&ehea_bcmc_regs.lock); + spin_lock(&ehea_bcmc_regs.lock); ehea_drop_multicast_list(dev); ehea_broadcast_reg_helper(port, H_DEREG_BCMC); @@ -2584,7 +2591,7 @@ static int ehea_down(struct net_device *dev) port->state = EHEA_PORT_DOWN; ehea_update_bcmc_registrations(); - mutex_unlock(&ehea_bcmc_regs.lock); + spin_unlock(&ehea_bcmc_regs.lock); ret = ehea_clean_all_portres(port); if (ret) @@ -2605,13 +2612,14 @@ static int ehea_stop(struct net_device *dev) if (netif_msg_ifdown(port)) ehea_info("disabling port %s", dev->name); + set_bit(__EHEA_DISABLE_PORT_RESET, &port->flags); cancel_work_sync(&port->reset_task); - mutex_lock(&port->port_lock); netif_stop_queue(dev); port_napi_disable(port); ret = ehea_down(dev); mutex_unlock(&port->port_lock); + clear_bit(__EHEA_DISABLE_PORT_RESET, &port->flags); return ret; } @@ -2941,7 +2949,7 @@ static void ehea_tx_watchdog(struct net_device *dev) if (netif_carrier_ok(dev) && !test_bit(__EHEA_STOP_XFER, &ehea_driver_flags)) - schedule_work(&port->reset_task); + ehea_schedule_port_reset(port); } int ehea_sense_adapter_attr(struct ehea_adapter *adapter) @@ -3590,7 +3598,7 @@ int __init ehea_module_init(void) memset(&ehea_bcmc_regs, 0, sizeof(ehea_bcmc_regs)); mutex_init(&ehea_fw_handles.lock); - mutex_init(&ehea_bcmc_regs.lock); + spin_lock_init(&ehea_bcmc_regs.lock); ret = check_module_parm(); if (ret) diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index 2cb24476329..20d4fe96a81 100644 --- a/drivers/net/forcedeth.c +++ b/drivers/net/forcedeth.c @@ -4194,12 +4194,23 @@ static int nv_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) netif_carrier_off(dev); if (netif_running(dev)) { + unsigned long flags; + nv_disable_irq(dev); netif_tx_lock_bh(dev); - spin_lock(&np->lock); + /* with plain spinlock lockdep complains */ + spin_lock_irqsave(&np->lock, flags); /* stop engines */ + /* FIXME: + * this can take some time, and interrupts are disabled + * due to spin_lock_irqsave, but let's hope no daemon + * is going to change the settings very often... + * Worst case: + * NV_RXSTOP_DELAY1MAX + NV_TXSTOP_DELAY1MAX + * + some minor delays, which is up to a second approximately + */ nv_stop_rxtx(dev); - spin_unlock(&np->lock); + spin_unlock_irqrestore(&np->lock, flags); netif_tx_unlock_bh(dev); } diff --git a/drivers/net/fs_enet/mac-fcc.c b/drivers/net/fs_enet/mac-fcc.c index e36321152d5..8268b3535b3 100644 --- a/drivers/net/fs_enet/mac-fcc.c +++ b/drivers/net/fs_enet/mac-fcc.c @@ -463,6 +463,9 @@ static void restart(struct net_device *dev) else C32(fccp, fcc_fpsmr, FCC_PSMR_FDE | FCC_PSMR_LPB); + /* Restore multicast and promiscuous settings */ + set_multicast_list(dev); + S32(fccp, fcc_gfmr, FCC_GFMR_ENR | FCC_GFMR_ENT); } diff --git a/drivers/net/hamradio/dmascc.c b/drivers/net/hamradio/dmascc.c index 0b94833e23f..e8cfadefa4b 100644 --- a/drivers/net/hamradio/dmascc.c +++ b/drivers/net/hamradio/dmascc.c @@ -1077,8 +1077,6 @@ static inline void rx_off(struct scc_priv *priv) static void start_timer(struct scc_priv *priv, int t, int r15) { - unsigned long flags; - outb(priv->tmr_mode, priv->tmr_ctrl); if (t == 0) { tm_isr(priv); diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index 5d2108c5ac7..babc79ad490 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -1636,6 +1636,12 @@ static int emac_poll_rx(void *param, int budget) goto next; } + if (len < ETH_HLEN) { + ++dev->estats.rx_dropped_stack; + emac_recycle_rx_skb(dev, slot, len); + goto next; + } + if (len && len < EMAC_RX_COPY_THRESH) { struct sk_buff *copy_skb = alloc_skb(len + EMAC_RX_SKB_HEADROOM + 2, GFP_ATOMIC); @@ -2719,6 +2725,8 @@ static int __devinit emac_probe(struct of_device *ofdev, /* Clean rings */ memset(dev->tx_desc, 0, NUM_TX_BUFF * sizeof(struct mal_descriptor)); memset(dev->rx_desc, 0, NUM_RX_BUFF * sizeof(struct mal_descriptor)); + memset(dev->tx_skb, 0, NUM_TX_BUFF * sizeof(struct sk_buff *)); + memset(dev->rx_skb, 0, NUM_RX_BUFF * sizeof(struct sk_buff *)); /* Attach to ZMII, if needed */ if (emac_has_feature(dev, EMAC_FTR_HAS_ZMII) && diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index ae398f04c7b..e79a26a886c 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -718,7 +718,8 @@ void igb_down(struct igb_adapter *adapter) adapter->link_speed = 0; adapter->link_duplex = 0; - igb_reset(adapter); + if (!pci_channel_offline(adapter->pdev)) + igb_reset(adapter); igb_clean_all_tx_rings(adapter); igb_clean_all_rx_rings(adapter); } diff --git a/drivers/net/ipg.c b/drivers/net/ipg.c index 679a0826780..2c03f4e2ccc 100644 --- a/drivers/net/ipg.c +++ b/drivers/net/ipg.c @@ -1271,7 +1271,7 @@ static void ipg_nic_rx_with_end(struct net_device *dev, framelen = le64_to_cpu(rxfd->rfs) & IPG_RFS_RXFRAMELEN; - endframeLen = framelen - jumbo->current_size; + endframelen = framelen - jumbo->current_size; /* if (framelen > IPG_RXFRAG_SIZE) framelen=IPG_RXFRAG_SIZE; @@ -1279,8 +1279,8 @@ static void ipg_nic_rx_with_end(struct net_device *dev, if (framelen > IPG_RXSUPPORT_SIZE) dev_kfree_skb_irq(jumbo->skb); else { - memcpy(skb_put(jumbo->skb, endframeLen), - skb->data, endframeLen); + memcpy(skb_put(jumbo->skb, endframelen), + skb->data, endframelen); jumbo->skb->protocol = eth_type_trans(jumbo->skb, dev); @@ -1352,16 +1352,16 @@ static int ipg_nic_rx(struct net_device *dev) switch (ipg_nic_rx_check_frame_type(dev)) { case FRAME_WITH_START_WITH_END: - ipg_nic_rx_with_start_and_end(dev, tp, rxfd, entry); + ipg_nic_rx_with_start_and_end(dev, sp, rxfd, entry); break; case FRAME_WITH_START: - ipg_nic_rx_with_start(dev, tp, rxfd, entry); + ipg_nic_rx_with_start(dev, sp, rxfd, entry); break; case FRAME_WITH_END: - ipg_nic_rx_with_end(dev, tp, rxfd, entry); + ipg_nic_rx_with_end(dev, sp, rxfd, entry); break; case FRAME_NO_START_NO_END: - ipg_nic_rx_no_start_no_end(dev, tp, rxfd, entry); + ipg_nic_rx_no_start_no_end(dev, sp, rxfd, entry); break; } } @@ -1808,7 +1808,7 @@ static int ipg_nic_open(struct net_device *dev) /* initialize JUMBO Frame control variable */ sp->jumbo.found_start = 0; sp->jumbo.current_size = 0; - sp->jumbo.skb = 0; + sp->jumbo.skb = NULL; dev->mtu = IPG_TXFRAG_SIZE; #endif diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 7b859220c25..8f046090115 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -1969,7 +1969,8 @@ void ixgbe_down(struct ixgbe_adapter *adapter) netif_carrier_off(netdev); netif_stop_queue(netdev); - ixgbe_reset(adapter); + if (!pci_channel_offline(adapter->pdev)) + ixgbe_reset(adapter); ixgbe_clean_all_tx_rings(adapter); ixgbe_clean_all_rx_rings(adapter); diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index 6797ed069f1..63cd67b931e 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -71,14 +71,18 @@ static irqreturn_t netxen_intr(int irq, void *data); static irqreturn_t netxen_msi_intr(int irq, void *data); /* PCI Device ID Table */ +#define ENTRY(device) \ + {PCI_DEVICE(0x4040, (device)), \ + .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} + static struct pci_device_id netxen_pci_tbl[] __devinitdata = { - {PCI_DEVICE(0x4040, 0x0001), PCI_DEVICE_CLASS(0x020000, ~0)}, - {PCI_DEVICE(0x4040, 0x0002), PCI_DEVICE_CLASS(0x020000, ~0)}, - {PCI_DEVICE(0x4040, 0x0003), PCI_DEVICE_CLASS(0x020000, ~0)}, - {PCI_DEVICE(0x4040, 0x0004), PCI_DEVICE_CLASS(0x020000, ~0)}, - {PCI_DEVICE(0x4040, 0x0005), PCI_DEVICE_CLASS(0x020000, ~0)}, - {PCI_DEVICE(0x4040, 0x0024), PCI_DEVICE_CLASS(0x020000, ~0)}, - {PCI_DEVICE(0x4040, 0x0025), PCI_DEVICE_CLASS(0x020000, ~0)}, + ENTRY(0x0001), + ENTRY(0x0002), + ENTRY(0x0003), + ENTRY(0x0004), + ENTRY(0x0005), + ENTRY(0x0024), + ENTRY(0x0025), {0,} }; diff --git a/drivers/net/pasemi_mac.c b/drivers/net/pasemi_mac.c index 3b2a6c59808..993d87c9296 100644 --- a/drivers/net/pasemi_mac.c +++ b/drivers/net/pasemi_mac.c @@ -277,7 +277,7 @@ static int get_skb_hdr(struct sk_buff *skb, void **iphdr, *tcph = tcp_hdr(skb); /* check if ip header and tcp header are complete */ - if (iph->tot_len < ip_len + tcp_hdrlen(skb)) + if (ntohs(iph->tot_len) < ip_len + tcp_hdrlen(skb)) return -1; *hdr_flags = LRO_IPV4 | LRO_TCP; diff --git a/drivers/net/pcmcia/axnet_cs.c b/drivers/net/pcmcia/axnet_cs.c index ce95c5d168f..70d012e90dc 100644 --- a/drivers/net/pcmcia/axnet_cs.c +++ b/drivers/net/pcmcia/axnet_cs.c @@ -525,12 +525,14 @@ static int axnet_open(struct net_device *dev) int ret; axnet_dev_t *info = PRIV(dev); struct pcmcia_device *link = info->p_dev; + unsigned int nic_base = dev->base_addr; DEBUG(2, "axnet_open('%s')\n", dev->name); if (!pcmcia_dev_present(link)) return -ENODEV; + outb_p(0xFF, nic_base + EN0_ISR); /* Clear bogus intr. */ ret = request_irq(dev->irq, ei_irq_wrapper, IRQF_SHARED, "axnet_cs", dev); if (ret) return ret; diff --git a/drivers/net/pcmcia/pcnet_cs.c b/drivers/net/pcmcia/pcnet_cs.c index fd8158a86f6..2d4c4ad89b8 100644 --- a/drivers/net/pcmcia/pcnet_cs.c +++ b/drivers/net/pcmcia/pcnet_cs.c @@ -969,6 +969,7 @@ static int pcnet_open(struct net_device *dev) int ret; pcnet_dev_t *info = PRIV(dev); struct pcmcia_device *link = info->p_dev; + unsigned int nic_base = dev->base_addr; DEBUG(2, "pcnet_open('%s')\n", dev->name); @@ -976,6 +977,8 @@ static int pcnet_open(struct net_device *dev) return -ENODEV; set_misc_reg(dev); + + outb_p(0xFF, nic_base + EN0_ISR); /* Clear bogus intr. */ ret = request_irq(dev->irq, ei_irq_wrapper, IRQF_SHARED, dev_info, dev); if (ret) return ret; diff --git a/drivers/net/qla3xxx.c b/drivers/net/qla3xxx.c index b7f7b2227d5..bccee68bd48 100644 --- a/drivers/net/qla3xxx.c +++ b/drivers/net/qla3xxx.c @@ -3701,7 +3701,9 @@ static int ql_cycle_adapter(struct ql3_adapter *qdev, int reset) printk(KERN_ERR PFX "%s: Driver up/down cycle failed, " "closing device\n",qdev->ndev->name); + rtnl_lock(); dev_close(qdev->ndev); + rtnl_unlock(); return -1; } return 0; diff --git a/drivers/net/r6040.c b/drivers/net/r6040.c index 858b191517b..504a48ff73c 100644 --- a/drivers/net/r6040.c +++ b/drivers/net/r6040.c @@ -273,7 +273,7 @@ static void r6040_init_ring_desc(struct r6040_descriptor *desc_ring, dma_addr_t mapping = desc_dma; while (size-- > 0) { - mapping += sizeof(sizeof(*desc)); + mapping += sizeof(*desc); desc->ndesc = cpu_to_le32(mapping); desc->vndescp = desc + 1; desc++; diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c index b5c1e663417..ae7b697456b 100644 --- a/drivers/net/s2io.c +++ b/drivers/net/s2io.c @@ -2625,9 +2625,7 @@ static int fill_rx_buffers(struct ring_info *ring) rxdp1->Buffer0_ptr = pci_map_single (ring->pdev, skb->data, size - NET_IP_ALIGN, PCI_DMA_FROMDEVICE); - if( (rxdp1->Buffer0_ptr == 0) || - (rxdp1->Buffer0_ptr == - DMA_ERROR_CODE)) + if(pci_dma_mapping_error(rxdp1->Buffer0_ptr)) goto pci_map_failed; rxdp->Control_2 = @@ -2657,6 +2655,7 @@ static int fill_rx_buffers(struct ring_info *ring) skb->data = (void *) (unsigned long)tmp; skb_reset_tail_pointer(skb); + /* AK: check is wrong. 0 can be valid dma address */ if (!(rxdp3->Buffer0_ptr)) rxdp3->Buffer0_ptr = pci_map_single(ring->pdev, ba->ba_0, @@ -2665,8 +2664,7 @@ static int fill_rx_buffers(struct ring_info *ring) pci_dma_sync_single_for_device(ring->pdev, (dma_addr_t) rxdp3->Buffer0_ptr, BUF0_LEN, PCI_DMA_FROMDEVICE); - if( (rxdp3->Buffer0_ptr == 0) || - (rxdp3->Buffer0_ptr == DMA_ERROR_CODE)) + if (pci_dma_mapping_error(rxdp3->Buffer0_ptr)) goto pci_map_failed; rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN); @@ -2681,18 +2679,17 @@ static int fill_rx_buffers(struct ring_info *ring) (ring->pdev, skb->data, ring->mtu + 4, PCI_DMA_FROMDEVICE); - if( (rxdp3->Buffer2_ptr == 0) || - (rxdp3->Buffer2_ptr == DMA_ERROR_CODE)) + if (pci_dma_mapping_error(rxdp3->Buffer2_ptr)) goto pci_map_failed; + /* AK: check is wrong */ if (!rxdp3->Buffer1_ptr) rxdp3->Buffer1_ptr = pci_map_single(ring->pdev, ba->ba_1, BUF1_LEN, PCI_DMA_FROMDEVICE); - if( (rxdp3->Buffer1_ptr == 0) || - (rxdp3->Buffer1_ptr == DMA_ERROR_CODE)) { + if (pci_dma_mapping_error(rxdp3->Buffer1_ptr)) { pci_unmap_single (ring->pdev, (dma_addr_t)(unsigned long) @@ -4264,16 +4261,14 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev) txdp->Buffer_Pointer = pci_map_single(sp->pdev, fifo->ufo_in_band_v, sizeof(u64), PCI_DMA_TODEVICE); - if((txdp->Buffer_Pointer == 0) || - (txdp->Buffer_Pointer == DMA_ERROR_CODE)) + if (pci_dma_mapping_error(txdp->Buffer_Pointer)) goto pci_map_failed; txdp++; } txdp->Buffer_Pointer = pci_map_single (sp->pdev, skb->data, frg_len, PCI_DMA_TODEVICE); - if((txdp->Buffer_Pointer == 0) || - (txdp->Buffer_Pointer == DMA_ERROR_CODE)) + if (pci_dma_mapping_error(txdp->Buffer_Pointer)) goto pci_map_failed; txdp->Host_Control = (unsigned long) skb; @@ -6884,10 +6879,8 @@ static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp, pci_map_single( sp->pdev, (*skb)->data, size - NET_IP_ALIGN, PCI_DMA_FROMDEVICE); - if( (rxdp1->Buffer0_ptr == 0) || - (rxdp1->Buffer0_ptr == DMA_ERROR_CODE)) { + if (pci_dma_mapping_error(rxdp1->Buffer0_ptr)) goto memalloc_failed; - } rxdp->Host_Control = (unsigned long) (*skb); } } else if ((sp->rxd_mode == RXD_MODE_3B) && (rxdp->Host_Control == 0)) { @@ -6913,15 +6906,12 @@ static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp, pci_map_single(sp->pdev, (*skb)->data, dev->mtu + 4, PCI_DMA_FROMDEVICE); - if( (rxdp3->Buffer2_ptr == 0) || - (rxdp3->Buffer2_ptr == DMA_ERROR_CODE)) { + if (pci_dma_mapping_error(rxdp3->Buffer2_ptr)) goto memalloc_failed; - } rxdp3->Buffer0_ptr = *temp0 = pci_map_single( sp->pdev, ba->ba_0, BUF0_LEN, PCI_DMA_FROMDEVICE); - if( (rxdp3->Buffer0_ptr == 0) || - (rxdp3->Buffer0_ptr == DMA_ERROR_CODE)) { + if (pci_dma_mapping_error(rxdp3->Buffer0_ptr)) { pci_unmap_single (sp->pdev, (dma_addr_t)rxdp3->Buffer2_ptr, dev->mtu + 4, PCI_DMA_FROMDEVICE); @@ -6933,8 +6923,7 @@ static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp, rxdp3->Buffer1_ptr = *temp1 = pci_map_single(sp->pdev, ba->ba_1, BUF1_LEN, PCI_DMA_FROMDEVICE); - if( (rxdp3->Buffer1_ptr == 0) || - (rxdp3->Buffer1_ptr == DMA_ERROR_CODE)) { + if (pci_dma_mapping_error(rxdp3->Buffer1_ptr)) { pci_unmap_single (sp->pdev, (dma_addr_t)rxdp3->Buffer0_ptr, BUF0_LEN, PCI_DMA_FROMDEVICE); diff --git a/drivers/net/s2io.h b/drivers/net/s2io.h index 4706f7f9acb..1827b6686c9 100644 --- a/drivers/net/s2io.h +++ b/drivers/net/s2io.h @@ -75,10 +75,6 @@ static int debug_level = ERR_DBG; /* DEBUG message print. */ #define DBG_PRINT(dbg_level, args...) if(!(debug_level<dbg_level)) printk(args) -#ifndef DMA_ERROR_CODE -#define DMA_ERROR_CODE (~(dma_addr_t)0x0) -#endif - /* Protocol assist features of the NIC */ #define L3_CKSUM_OK 0xFFFF #define L4_CKSUM_OK 0xFFFF diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c index 10e4e85da3f..b07b8cbadea 100644 --- a/drivers/net/tc35815.c +++ b/drivers/net/tc35815.c @@ -1394,6 +1394,7 @@ tc35815_open(struct net_device *dev) tc35815_chip_init(dev); spin_unlock_irq(&lp->lock); + netif_carrier_off(dev); /* schedule a link state check */ phy_start(lp->phy_dev); @@ -1735,7 +1736,6 @@ tc35815_rx(struct net_device *dev) skb = lp->rx_skbs[cur_bd].skb; prefetch(skb->data); lp->rx_skbs[cur_bd].skb = NULL; - lp->fbl_count--; pci_unmap_single(lp->pci_dev, lp->rx_skbs[cur_bd].skb_dma, RX_BUF_SIZE, PCI_DMA_FROMDEVICE); @@ -1791,6 +1791,7 @@ tc35815_rx(struct net_device *dev) #ifdef TC35815_USE_PACKEDBUFFER while (lp->fbl_curid != id) #else + lp->fbl_count--; while (lp->fbl_count < RX_BUF_NUM) #endif { @@ -2453,6 +2454,7 @@ static int tc35815_resume(struct pci_dev *pdev) return 0; pci_set_power_state(pdev, PCI_D0); tc35815_restart(dev); + netif_carrier_off(dev); if (lp->phy_dev) phy_start(lp->phy_dev); netif_device_attach(dev); diff --git a/drivers/net/wan/hdlc_fr.c b/drivers/net/wan/hdlc_fr.c index 520bb0b1a9a..6d35155c714 100644 --- a/drivers/net/wan/hdlc_fr.c +++ b/drivers/net/wan/hdlc_fr.c @@ -1008,6 +1008,7 @@ static int fr_rx(struct sk_buff *skb) stats->rx_bytes += skb->len; if (pvc->state.becn) stats->rx_compressed++; + skb->dev = dev; netif_rx(skb); return NET_RX_SUCCESS; } else { diff --git a/drivers/net/wan/x25_asy.c b/drivers/net/wan/x25_asy.c index 249e18053d5..069f8bb0a99 100644 --- a/drivers/net/wan/x25_asy.c +++ b/drivers/net/wan/x25_asy.c @@ -32,6 +32,7 @@ #include <linux/x25.h> #include <linux/lapb.h> #include <linux/init.h> +#include <linux/rtnetlink.h> #include "x25_asy.h" #include <net/x25device.h> @@ -601,8 +602,10 @@ static void x25_asy_close_tty(struct tty_struct *tty) if (!sl || sl->magic != X25_ASY_MAGIC) return; + rtnl_lock(); if (sl->dev->flags & IFF_UP) dev_close(sl->dev); + rtnl_unlock(); tty->disc_data = NULL; sl->tty = NULL; diff --git a/drivers/net/wireless/b43/leds.c b/drivers/net/wireless/b43/leds.c index 36a9c42df83..76f4c7bad8b 100644 --- a/drivers/net/wireless/b43/leds.c +++ b/drivers/net/wireless/b43/leds.c @@ -72,6 +72,9 @@ static void b43_led_brightness_set(struct led_classdev *led_dev, struct b43_wldev *dev = led->dev; bool radio_enabled; + if (unlikely(b43_status(dev) < B43_STAT_INITIALIZED)) + return; + /* Checking the radio-enabled status here is slightly racy, * but we want to avoid the locking overhead and we don't care * whether the LED has the wrong state for a second. */ diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index fa4b0d8b74a..a7082779308 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -2883,12 +2883,11 @@ static int b43_op_tx(struct ieee80211_hw *hw, if (unlikely(skb->len < 2 + 2 + 6)) { /* Too short, this can't be a valid frame. */ - dev_kfree_skb_any(skb); - return NETDEV_TX_OK; + goto drop_packet; } B43_WARN_ON(skb_shinfo(skb)->nr_frags); if (unlikely(!dev)) - return NETDEV_TX_BUSY; + goto drop_packet; /* Transmissions on seperate queues can run concurrently. */ read_lock_irqsave(&wl->tx_lock, flags); @@ -2904,7 +2903,12 @@ static int b43_op_tx(struct ieee80211_hw *hw, read_unlock_irqrestore(&wl->tx_lock, flags); if (unlikely(err)) - return NETDEV_TX_BUSY; + goto drop_packet; + return NETDEV_TX_OK; + +drop_packet: + /* We can not transmit this packet. Drop it. */ + dev_kfree_skb_any(skb); return NETDEV_TX_OK; } diff --git a/drivers/net/wireless/b43legacy/dma.c b/drivers/net/wireless/b43legacy/dma.c index c990f87b107..93ddc1cbcc8 100644 --- a/drivers/net/wireless/b43legacy/dma.c +++ b/drivers/net/wireless/b43legacy/dma.c @@ -876,6 +876,7 @@ struct b43legacy_dmaring *b43legacy_setup_dmaring(struct b43legacy_wldev *dev, if (!ring) goto out; ring->type = type; + ring->dev = dev; nr_slots = B43legacy_RXRING_SLOTS; if (for_tx) @@ -922,7 +923,6 @@ struct b43legacy_dmaring *b43legacy_setup_dmaring(struct b43legacy_wldev *dev, DMA_TO_DEVICE); } - ring->dev = dev; ring->nr_slots = nr_slots; ring->mmio_base = b43legacy_dmacontroller_base(type, controller_index); ring->index = controller_index; diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c index 204077c1387..3e612d0a13e 100644 --- a/drivers/net/wireless/b43legacy/main.c +++ b/drivers/net/wireless/b43legacy/main.c @@ -2378,8 +2378,10 @@ static int b43legacy_op_tx(struct ieee80211_hw *hw, } else err = b43legacy_dma_tx(dev, skb, ctl); out: - if (unlikely(err)) - return NETDEV_TX_BUSY; + if (unlikely(err)) { + /* Drop the packet. */ + dev_kfree_skb_any(skb); + } return NETDEV_TX_OK; } diff --git a/drivers/net/wireless/hostap/hostap_80211_rx.c b/drivers/net/wireless/hostap/hostap_80211_rx.c index 4fd73809602..020f450e9db 100644 --- a/drivers/net/wireless/hostap/hostap_80211_rx.c +++ b/drivers/net/wireless/hostap/hostap_80211_rx.c @@ -64,7 +64,7 @@ int prism2_rx_80211(struct net_device *dev, struct sk_buff *skb, int hdrlen, phdrlen, head_need, tail_need; u16 fc; int prism_header, ret; - struct ieee80211_hdr_4addr *hdr; + struct ieee80211_hdr_4addr *fhdr; iface = netdev_priv(dev); local = iface->local; @@ -83,8 +83,8 @@ int prism2_rx_80211(struct net_device *dev, struct sk_buff *skb, phdrlen = 0; } - hdr = (struct ieee80211_hdr_4addr *) skb->data; - fc = le16_to_cpu(hdr->frame_ctl); + fhdr = (struct ieee80211_hdr_4addr *) skb->data; + fc = le16_to_cpu(fhdr->frame_ctl); if (type == PRISM2_RX_MGMT && (fc & IEEE80211_FCTL_VERS)) { printk(KERN_DEBUG "%s: dropped management frame with header " @@ -551,7 +551,7 @@ hostap_rx_frame_wds(local_info_t *local, struct ieee80211_hdr_4addr *hdr, hdr->addr1[2] != 0xff || hdr->addr1[3] != 0xff || hdr->addr1[4] != 0xff || hdr->addr1[5] != 0xff)) { /* RA (or BSSID) is not ours - drop */ - PDEBUG(DEBUG_EXTRA, "%s: received WDS frame with " + PDEBUG(DEBUG_EXTRA2, "%s: received WDS frame with " "not own or broadcast %s=%s\n", local->dev->name, fc & IEEE80211_FCTL_FROMDS ? "RA" : "BSSID", diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c index 0acd9589c48..ab981afd481 100644 --- a/drivers/net/wireless/hostap/hostap_ap.c +++ b/drivers/net/wireless/hostap/hostap_ap.c @@ -1930,7 +1930,7 @@ static void handle_pspoll(local_info_t *local, PDEBUG(DEBUG_PS, " PSPOLL and AID[15:14] not set\n"); return; } - aid &= ~BIT(15) & ~BIT(14); + aid &= ~(BIT(15) | BIT(14)); if (aid == 0 || aid > MAX_AID_TABLE_SIZE) { PDEBUG(DEBUG_PS, " invalid aid=%d\n", aid); return; diff --git a/drivers/net/wireless/hostap/hostap_cs.c b/drivers/net/wireless/hostap/hostap_cs.c index ed4317a17cb..80039a0ae02 100644 --- a/drivers/net/wireless/hostap/hostap_cs.c +++ b/drivers/net/wireless/hostap/hostap_cs.c @@ -533,10 +533,10 @@ static void prism2_detach(struct pcmcia_device *link) do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) #define CFG_CHECK2(fn, retf) \ -do { int ret = (retf); \ -if (ret != 0) { \ - PDEBUG(DEBUG_EXTRA, "CardServices(" #fn ") returned %d\n", ret); \ - cs_error(link, fn, ret); \ +do { int _ret = (retf); \ +if (_ret != 0) { \ + PDEBUG(DEBUG_EXTRA, "CardServices(" #fn ") returned %d\n", _ret); \ + cs_error(link, fn, _ret); \ goto next_entry; \ } \ } while (0) diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c index cdf90c40f11..936f52e3d95 100644 --- a/drivers/net/wireless/hostap/hostap_hw.c +++ b/drivers/net/wireless/hostap/hostap_hw.c @@ -2835,7 +2835,7 @@ static void hostap_passive_scan(unsigned long data) { local_info_t *local = (local_info_t *) data; struct net_device *dev = local->dev; - u16 channel; + u16 chan; if (local->passive_scan_interval <= 0) return; @@ -2872,11 +2872,11 @@ static void hostap_passive_scan(unsigned long data) printk(KERN_DEBUG "%s: passive scan channel %d\n", dev->name, local->passive_scan_channel); - channel = local->passive_scan_channel; + chan = local->passive_scan_channel; local->passive_scan_state = PASSIVE_SCAN_WAIT; local->passive_scan_timer.expires = jiffies + HZ / 10; } else { - channel = local->channel; + chan = local->channel; local->passive_scan_state = PASSIVE_SCAN_LISTEN; local->passive_scan_timer.expires = jiffies + local->passive_scan_interval * HZ; @@ -2884,9 +2884,9 @@ static void hostap_passive_scan(unsigned long data) if (hfa384x_cmd_callback(dev, HFA384X_CMDCODE_TEST | (HFA384X_TEST_CHANGE_CHANNEL << 8), - channel, NULL, 0)) + chan, NULL, 0)) printk(KERN_ERR "%s: passive scan channel set %d " - "failed\n", dev->name, channel); + "failed\n", dev->name, chan); add_timer(&local->passive_scan_timer); } diff --git a/drivers/net/wireless/hostap/hostap_main.c b/drivers/net/wireless/hostap/hostap_main.c index f7aec9309d0..a38e85f334d 100644 --- a/drivers/net/wireless/hostap/hostap_main.c +++ b/drivers/net/wireless/hostap/hostap_main.c @@ -594,7 +594,8 @@ void hostap_dump_tx_header(const char *name, const struct hfa384x_tx_frame *tx) } -int hostap_80211_header_parse(const struct sk_buff *skb, unsigned char *haddr) +static int hostap_80211_header_parse(const struct sk_buff *skb, + unsigned char *haddr) { struct hostap_interface *iface = netdev_priv(skb->dev); local_info_t *local = iface->local; @@ -857,7 +858,6 @@ const struct header_ops hostap_80211_ops = { .rebuild = eth_rebuild_header, .cache = eth_header_cache, .cache_update = eth_header_cache_update, - .parse = hostap_80211_header_parse, }; EXPORT_SYMBOL(hostap_80211_ops); @@ -1150,7 +1150,6 @@ EXPORT_SYMBOL(hostap_set_roaming); EXPORT_SYMBOL(hostap_set_auth_algs); EXPORT_SYMBOL(hostap_dump_rx_header); EXPORT_SYMBOL(hostap_dump_tx_header); -EXPORT_SYMBOL(hostap_80211_header_parse); EXPORT_SYMBOL(hostap_80211_get_hdrlen); EXPORT_SYMBOL(hostap_get_stats); EXPORT_SYMBOL(hostap_setup_dev); diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c index 62a3d8f8563..f5387a7a76c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945.c @@ -588,8 +588,12 @@ static void iwl3945_add_radiotap(struct iwl3945_priv *priv, if (rate == -1) iwl3945_rt->rt_rate = 0; - else + else { + if (stats->band == IEEE80211_BAND_5GHZ) + rate += IWL_FIRST_OFDM_RATE; + iwl3945_rt->rt_rate = iwl3945_rates[rate].ieee; + } /* antenna number */ antenna = phy_flags_hw & RX_RES_PHY_FLAGS_ANTENNA_MSK; diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index bf19eb8aafd..de330ae0ca9 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -3528,8 +3528,12 @@ static void iwl4965_add_radiotap(struct iwl_priv *priv, if (rate == -1) iwl4965_rt->rt_rate = 0; - else + else { + if (stats->band == IEEE80211_BAND_5GHZ) + rate += IWL_FIRST_OFDM_RATE; + iwl4965_rt->rt_rate = iwl4965_rates[rate].ieee; + } /* * "antenna number" diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 13925b627e3..6027e1119c3 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -2227,7 +2227,10 @@ static int iwl3945_scan_initiate(struct iwl3945_priv *priv) } IWL_DEBUG_INFO("Starting scan...\n"); - priv->scan_bands = 2; + if (priv->cfg->sku & IWL_SKU_G) + priv->scan_bands |= BIT(IEEE80211_BAND_2GHZ); + if (priv->cfg->sku & IWL_SKU_A) + priv->scan_bands |= BIT(IEEE80211_BAND_5GHZ); set_bit(STATUS_SCANNING, &priv->status); priv->scan_start = jiffies; priv->scan_pass_start = priv->scan_start; @@ -3352,13 +3355,18 @@ static void iwl3945_rx_scan_complete_notif(struct iwl3945_priv *priv, cancel_delayed_work(&priv->scan_check); IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n", - (priv->scan_bands == 2) ? "2.4" : "5.2", + (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) ? + "2.4" : "5.2", jiffies_to_msecs(elapsed_jiffies (priv->scan_pass_start, jiffies))); - /* Remove this scanned band from the list - * of pending bands to scan */ - priv->scan_bands--; + /* Remove this scanned band from the list of pending + * bands to scan, band G precedes A in order of scanning + * as seen in iwl3945_bg_request_scan */ + if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) + priv->scan_bands &= ~BIT(IEEE80211_BAND_2GHZ); + else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) + priv->scan_bands &= ~BIT(IEEE80211_BAND_5GHZ); /* If a request to abort was given, or the scan did not succeed * then we reset the scan state machine and terminate, @@ -4972,7 +4980,7 @@ static int iwl3945_get_channels_for_scan(struct iwl3945_priv *priv, ch_info = iwl3945_get_channel_info(priv, band, scan_ch->channel); if (!is_channel_valid(ch_info)) { - IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n", + IWL_DEBUG_SCAN("Channel %d is INVALID for this band.\n", scan_ch->channel); continue; } @@ -6315,21 +6323,16 @@ static void iwl3945_bg_request_scan(struct work_struct *data) /* flags + rate selection */ - switch (priv->scan_bands) { - case 2: + if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) { scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; scan->tx_cmd.rate = IWL_RATE_1M_PLCP; scan->good_CRC_th = 0; band = IEEE80211_BAND_2GHZ; - break; - - case 1: + } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) { scan->tx_cmd.rate = IWL_RATE_6M_PLCP; scan->good_CRC_th = IWL_GOOD_CRC_TH; band = IEEE80211_BAND_5GHZ; - break; - - default: + } else { IWL_WARNING("Invalid scan band count\n"); goto done; } @@ -6684,7 +6687,8 @@ static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb, if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { IWL_DEBUG_MAC80211("leave - monitor\n"); - return -1; + dev_kfree_skb_any(skb); + return 0; } IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, @@ -6770,7 +6774,7 @@ static int iwl3945_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co ch_info = iwl3945_get_channel_info(priv, conf->channel->band, conf->channel->hw_value); if (!is_channel_valid(ch_info)) { - IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this SKU.\n", + IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this band.\n", conf->channel->hw_value, conf->channel->band); IWL_DEBUG_MAC80211("leave - invalid channel\n"); spin_unlock_irqrestore(&priv->lock, flags); diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c index 883b42f7e99..0bd55bb1973 100644 --- a/drivers/net/wireless/iwlwifi/iwl4965-base.c +++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c @@ -1774,7 +1774,10 @@ static int iwl4965_scan_initiate(struct iwl_priv *priv) } IWL_DEBUG_INFO("Starting scan...\n"); - priv->scan_bands = 2; + if (priv->cfg->sku & IWL_SKU_G) + priv->scan_bands |= BIT(IEEE80211_BAND_2GHZ); + if (priv->cfg->sku & IWL_SKU_A) + priv->scan_bands |= BIT(IEEE80211_BAND_5GHZ); set_bit(STATUS_SCANNING, &priv->status); priv->scan_start = jiffies; priv->scan_pass_start = priv->scan_start; @@ -3023,8 +3026,9 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv, IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index); if (index != -1) { - int freed = iwl4965_tx_queue_reclaim(priv, txq_id, index); #ifdef CONFIG_IWL4965_HT + int freed = iwl4965_tx_queue_reclaim(priv, txq_id, index); + if (tid != MAX_TID_COUNT) priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; if (iwl4965_queue_space(&txq->q) > txq->q.low_mark && @@ -3276,13 +3280,18 @@ static void iwl4965_rx_scan_complete_notif(struct iwl_priv *priv, cancel_delayed_work(&priv->scan_check); IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n", - (priv->scan_bands == 2) ? "2.4" : "5.2", + (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) ? + "2.4" : "5.2", jiffies_to_msecs(elapsed_jiffies (priv->scan_pass_start, jiffies))); - /* Remove this scanned band from the list - * of pending bands to scan */ - priv->scan_bands--; + /* Remove this scanned band from the list of pending + * bands to scan, band G precedes A in order of scanning + * as seen in iwl_bg_request_scan */ + if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) + priv->scan_bands &= ~BIT(IEEE80211_BAND_2GHZ); + else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) + priv->scan_bands &= ~BIT(IEEE80211_BAND_5GHZ); /* If a request to abort was given, or the scan did not succeed * then we reset the scan state machine and terminate, @@ -3292,7 +3301,7 @@ static void iwl4965_rx_scan_complete_notif(struct iwl_priv *priv, clear_bit(STATUS_SCAN_ABORTING, &priv->status); } else { /* If there are more bands on this scan pass reschedule */ - if (priv->scan_bands > 0) + if (priv->scan_bands) goto reschedule; } @@ -4635,10 +4644,9 @@ static int iwl4965_get_channels_for_scan(struct iwl_priv *priv, scan_ch->channel = ieee80211_frequency_to_channel(channels[i].center_freq); - ch_info = iwl_get_channel_info(priv, band, - scan_ch->channel); + ch_info = iwl_get_channel_info(priv, band, scan_ch->channel); if (!is_channel_valid(ch_info)) { - IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n", + IWL_DEBUG_SCAN("Channel %d is INVALID for this band.\n", scan_ch->channel); continue; } @@ -5830,8 +5838,7 @@ static void iwl4965_bg_request_scan(struct work_struct *data) scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; - switch (priv->scan_bands) { - case 2: + if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) { scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; scan->tx_cmd.rate_n_flags = iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP, @@ -5839,17 +5846,13 @@ static void iwl4965_bg_request_scan(struct work_struct *data) scan->good_CRC_th = 0; band = IEEE80211_BAND_2GHZ; - break; - - case 1: + } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) { scan->tx_cmd.rate_n_flags = iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP, RATE_MCS_ANT_B_MSK); scan->good_CRC_th = IWL_GOOD_CRC_TH; band = IEEE80211_BAND_5GHZ; - break; - - default: + } else { IWL_WARNING("Invalid scan band count\n"); goto done; } @@ -6234,7 +6237,8 @@ static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb, if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { IWL_DEBUG_MAC80211("leave - monitor\n"); - return -1; + dev_kfree_skb_any(skb); + return 0; } IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c index 8032df72aaa..36288b29abf 100644 --- a/drivers/net/wireless/libertas/if_usb.c +++ b/drivers/net/wireless/libertas/if_usb.c @@ -925,6 +925,7 @@ static struct usb_driver if_usb_driver = { .id_table = if_usb_table, .suspend = if_usb_suspend, .resume = if_usb_resume, + .reset_resume = if_usb_resume, }; static int __init if_usb_init_module(void) diff --git a/drivers/net/wireless/prism54/islpci_eth.c b/drivers/net/wireless/prism54/islpci_eth.c index 762e85bef55..e43bae97ed8 100644 --- a/drivers/net/wireless/prism54/islpci_eth.c +++ b/drivers/net/wireless/prism54/islpci_eth.c @@ -290,7 +290,7 @@ islpci_monitor_rx(islpci_private *priv, struct sk_buff **skb) avs->version = cpu_to_be32(P80211CAPTURE_VERSION); avs->length = cpu_to_be32(sizeof (struct avs_80211_1_header)); - avs->mactime = cpu_to_be64(le64_to_cpu(clock)); + avs->mactime = cpu_to_be64(clock); avs->hosttime = cpu_to_be64(jiffies); avs->phytype = cpu_to_be32(6); /*OFDM: 6 for (g), 8 for (a) */ avs->channel = cpu_to_be32(channel_of_freq(freq)); diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c index fdbd0ef2be4..61e59c17a60 100644 --- a/drivers/net/wireless/rt2x00/rt2500usb.c +++ b/drivers/net/wireless/rt2x00/rt2500usb.c @@ -138,11 +138,8 @@ static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev, * Wait until the BBP becomes ready. */ reg = rt2500usb_bbp_check(rt2x00dev); - if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) { - ERROR(rt2x00dev, "PHY_CSR8 register busy. Write failed.\n"); - mutex_unlock(&rt2x00dev->usb_cache_mutex); - return; - } + if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) + goto exit_fail; /* * Write the data into the BBP. @@ -155,6 +152,13 @@ static void rt2500usb_bbp_write(struct rt2x00_dev *rt2x00dev, rt2500usb_register_write_lock(rt2x00dev, PHY_CSR7, reg); mutex_unlock(&rt2x00dev->usb_cache_mutex); + + return; + +exit_fail: + mutex_unlock(&rt2x00dev->usb_cache_mutex); + + ERROR(rt2x00dev, "PHY_CSR8 register busy. Write failed.\n"); } static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev, @@ -168,10 +172,8 @@ static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev, * Wait until the BBP becomes ready. */ reg = rt2500usb_bbp_check(rt2x00dev); - if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) { - ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n"); - return; - } + if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) + goto exit_fail; /* * Write the request into the BBP. @@ -186,17 +188,21 @@ static void rt2500usb_bbp_read(struct rt2x00_dev *rt2x00dev, * Wait until the BBP becomes ready. */ reg = rt2500usb_bbp_check(rt2x00dev); - if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) { - ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n"); - *value = 0xff; - mutex_unlock(&rt2x00dev->usb_cache_mutex); - return; - } + if (rt2x00_get_field16(reg, PHY_CSR8_BUSY)) + goto exit_fail; rt2500usb_register_read_lock(rt2x00dev, PHY_CSR7, ®); *value = rt2x00_get_field16(reg, PHY_CSR7_DATA); mutex_unlock(&rt2x00dev->usb_cache_mutex); + + return; + +exit_fail: + mutex_unlock(&rt2x00dev->usb_cache_mutex); + + ERROR(rt2x00dev, "PHY_CSR8 register busy. Read failed.\n"); + *value = 0xff; } static void rt2500usb_rf_write(struct rt2x00_dev *rt2x00dev, diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 611d9832059..b4bf1e09cf9 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -821,6 +821,7 @@ struct rt2x00_dev { /* * Scheduled work. */ + struct workqueue_struct *workqueue; struct work_struct intf_work; struct work_struct filter_work; diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index 2673d568bca..c997d4f28ab 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -75,7 +75,7 @@ static void rt2x00lib_start_link_tuner(struct rt2x00_dev *rt2x00dev) rt2x00lib_reset_link_tuner(rt2x00dev); - queue_delayed_work(rt2x00dev->hw->workqueue, + queue_delayed_work(rt2x00dev->workqueue, &rt2x00dev->link.work, LINK_TUNE_INTERVAL); } @@ -137,14 +137,6 @@ void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev) return; /* - * Stop all scheduled work. - */ - if (work_pending(&rt2x00dev->intf_work)) - cancel_work_sync(&rt2x00dev->intf_work); - if (work_pending(&rt2x00dev->filter_work)) - cancel_work_sync(&rt2x00dev->filter_work); - - /* * Stop the TX queues. */ ieee80211_stop_queues(rt2x00dev->hw); @@ -398,8 +390,8 @@ static void rt2x00lib_link_tuner(struct work_struct *work) * Increase tuner counter, and reschedule the next link tuner run. */ rt2x00dev->link.count++; - queue_delayed_work(rt2x00dev->hw->workqueue, &rt2x00dev->link.work, - LINK_TUNE_INTERVAL); + queue_delayed_work(rt2x00dev->workqueue, + &rt2x00dev->link.work, LINK_TUNE_INTERVAL); } static void rt2x00lib_packetfilter_scheduled(struct work_struct *work) @@ -433,6 +425,15 @@ static void rt2x00lib_intf_scheduled_iter(void *data, u8 *mac, spin_unlock(&intf->lock); + /* + * It is possible the radio was disabled while the work had been + * scheduled. If that happens we should return here immediately, + * note that in the spinlock protected area above the delayed_flags + * have been cleared correctly. + */ + if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags)) + return; + if (delayed_flags & DELAYED_UPDATE_BEACON) { skb = ieee80211_beacon_get(rt2x00dev->hw, vif, &control); if (skb && rt2x00dev->ops->hw->beacon_update(rt2x00dev->hw, @@ -441,7 +442,7 @@ static void rt2x00lib_intf_scheduled_iter(void *data, u8 *mac, } if (delayed_flags & DELAYED_CONFIG_ERP) - rt2x00lib_config_erp(rt2x00dev, intf, &intf->conf); + rt2x00lib_config_erp(rt2x00dev, intf, &conf); if (delayed_flags & DELAYED_LED_ASSOC) rt2x00leds_led_assoc(rt2x00dev, !!rt2x00dev->intf_associated); @@ -487,7 +488,7 @@ void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev) rt2x00lib_beacondone_iter, rt2x00dev); - queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->intf_work); + queue_work(rt2x00dev->workqueue, &rt2x00dev->intf_work); } EXPORT_SYMBOL_GPL(rt2x00lib_beacondone); @@ -1130,6 +1131,10 @@ int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev) /* * Initialize configuration work. */ + rt2x00dev->workqueue = create_singlethread_workqueue("rt2x00lib"); + if (!rt2x00dev->workqueue) + goto exit; + INIT_WORK(&rt2x00dev->intf_work, rt2x00lib_intf_scheduled); INIT_WORK(&rt2x00dev->filter_work, rt2x00lib_packetfilter_scheduled); INIT_DELAYED_WORK(&rt2x00dev->link.work, rt2x00lib_link_tuner); @@ -1190,6 +1195,13 @@ void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev) rt2x00leds_unregister(rt2x00dev); /* + * Stop all queued work. Note that most tasks will already be halted + * during rt2x00lib_disable_radio() and rt2x00lib_uninitialize(). + */ + flush_workqueue(rt2x00dev->workqueue); + destroy_workqueue(rt2x00dev->workqueue); + + /* * Free ieee80211_hw memory. */ rt2x00lib_remove_hw(rt2x00dev); diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c index 87e280a2197..9cb023edd2e 100644 --- a/drivers/net/wireless/rt2x00/rt2x00mac.c +++ b/drivers/net/wireless/rt2x00/rt2x00mac.c @@ -428,7 +428,7 @@ void rt2x00mac_configure_filter(struct ieee80211_hw *hw, if (!test_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags)) rt2x00dev->ops->lib->config_filter(rt2x00dev, *total_flags); else - queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->filter_work); + queue_work(rt2x00dev->workqueue, &rt2x00dev->filter_work); } EXPORT_SYMBOL_GPL(rt2x00mac_configure_filter); @@ -509,7 +509,7 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw, memcpy(&intf->conf, bss_conf, sizeof(*bss_conf)); if (delayed) { intf->delayed_flags |= delayed; - queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->intf_work); + queue_work(rt2x00dev->workqueue, &rt2x00dev->intf_work); } spin_unlock(&intf->lock); } diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index fff8386e816..83cc0147f69 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -134,11 +134,8 @@ static void rt73usb_bbp_write(struct rt2x00_dev *rt2x00dev, * Wait until the BBP becomes ready. */ reg = rt73usb_bbp_check(rt2x00dev); - if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) { - ERROR(rt2x00dev, "PHY_CSR3 register busy. Write failed.\n"); - mutex_unlock(&rt2x00dev->usb_cache_mutex); - return; - } + if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) + goto exit_fail; /* * Write the data into the BBP. @@ -151,6 +148,13 @@ static void rt73usb_bbp_write(struct rt2x00_dev *rt2x00dev, rt73usb_register_write_lock(rt2x00dev, PHY_CSR3, reg); mutex_unlock(&rt2x00dev->usb_cache_mutex); + + return; + +exit_fail: + mutex_unlock(&rt2x00dev->usb_cache_mutex); + + ERROR(rt2x00dev, "PHY_CSR3 register busy. Write failed.\n"); } static void rt73usb_bbp_read(struct rt2x00_dev *rt2x00dev, @@ -164,11 +168,8 @@ static void rt73usb_bbp_read(struct rt2x00_dev *rt2x00dev, * Wait until the BBP becomes ready. */ reg = rt73usb_bbp_check(rt2x00dev); - if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) { - ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n"); - mutex_unlock(&rt2x00dev->usb_cache_mutex); - return; - } + if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) + goto exit_fail; /* * Write the request into the BBP. @@ -184,14 +185,19 @@ static void rt73usb_bbp_read(struct rt2x00_dev *rt2x00dev, * Wait until the BBP becomes ready. */ reg = rt73usb_bbp_check(rt2x00dev); - if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) { - ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n"); - *value = 0xff; - return; - } + if (rt2x00_get_field32(reg, PHY_CSR3_BUSY)) + goto exit_fail; *value = rt2x00_get_field32(reg, PHY_CSR3_VALUE); mutex_unlock(&rt2x00dev->usb_cache_mutex); + + return; + +exit_fail: + mutex_unlock(&rt2x00dev->usb_cache_mutex); + + ERROR(rt2x00dev, "PHY_CSR3 register busy. Read failed.\n"); + *value = 0xff; } static void rt73usb_rf_write(struct rt2x00_dev *rt2x00dev, diff --git a/drivers/pci/access.c b/drivers/pci/access.c index ec8f7002b09..39bb96b413e 100644 --- a/drivers/pci/access.c +++ b/drivers/pci/access.c @@ -178,8 +178,7 @@ static int pci_vpd_pci22_read(struct pci_dev *dev, int pos, int size, int ret; int begin, end, i; - if (pos < 0 || pos > PCI_VPD_PCI22_SIZE || - size > PCI_VPD_PCI22_SIZE - pos) + if (pos < 0 || pos > vpd->base.len || size > vpd->base.len - pos) return -EINVAL; if (size == 0) return 0; @@ -223,8 +222,8 @@ static int pci_vpd_pci22_write(struct pci_dev *dev, int pos, int size, u32 val; int ret; - if (pos < 0 || pos > PCI_VPD_PCI22_SIZE || pos & 3 || - size > PCI_VPD_PCI22_SIZE - pos || size < 4) + if (pos < 0 || pos > vpd->base.len || pos & 3 || + size > vpd->base.len - pos || size < 4) return -EINVAL; val = (u8) *buf++; @@ -255,11 +254,6 @@ out: return 4; } -static int pci_vpd_pci22_get_size(struct pci_dev *dev) -{ - return PCI_VPD_PCI22_SIZE; -} - static void pci_vpd_pci22_release(struct pci_dev *dev) { kfree(container_of(dev->vpd, struct pci_vpd_pci22, base)); @@ -268,7 +262,6 @@ static void pci_vpd_pci22_release(struct pci_dev *dev) static struct pci_vpd_ops pci_vpd_pci22_ops = { .read = pci_vpd_pci22_read, .write = pci_vpd_pci22_write, - .get_size = pci_vpd_pci22_get_size, .release = pci_vpd_pci22_release, }; @@ -284,6 +277,7 @@ int pci_vpd_pci22_init(struct pci_dev *dev) if (!vpd) return -ENOMEM; + vpd->base.len = PCI_VPD_PCI22_SIZE; vpd->base.ops = &pci_vpd_pci22_ops; spin_lock_init(&vpd->lock); vpd->cap = cap; diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 648596d469f..91156f85a92 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -700,9 +700,10 @@ cleanup_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv) acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, cleanup_p2p_bridge, NULL, NULL); - if (!(bridge = acpiphp_handle_to_bridge(handle))) - return AE_OK; - cleanup_bridge(bridge); + bridge = acpiphp_handle_to_bridge(handle); + if (bridge) + cleanup_bridge(bridge); + return AE_OK; } @@ -715,9 +716,19 @@ static void remove_bridge(acpi_handle handle) acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, cleanup_p2p_bridge, NULL, NULL); + /* + * On root bridges with hotplug slots directly underneath (ie, + * no p2p bridge inbetween), we call cleanup_bridge(). + * + * The else clause cleans up root bridges that either had no + * hotplug slots at all, or had a p2p bridge underneath. + */ bridge = acpiphp_handle_to_bridge(handle); if (bridge) cleanup_bridge(bridge); + else + acpi_remove_notify_handler(handle, ACPI_SYSTEM_NOTIFY, + handle_hotplug_event_bridge); } static struct pci_dev * get_apic_pci_info(acpi_handle handle) diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 6f3c7446c32..9c718583a23 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -736,9 +736,9 @@ int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev) attr = kzalloc(sizeof(*attr), GFP_ATOMIC); if (attr) { pdev->vpd->attr = attr; - attr->size = pdev->vpd->ops->get_size(pdev); + attr->size = pdev->vpd->len; attr->attr.name = "vpd"; - attr->attr.mode = S_IRUGO | S_IWUSR; + attr->attr.mode = S_IRUSR | S_IWUSR; attr->read = pci_read_vpd; attr->write = pci_write_vpd; retval = sysfs_create_bin_file(&pdev->dev.kobj, attr); diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 0a497c1b422..00408c97e5f 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -21,11 +21,11 @@ extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val); struct pci_vpd_ops { int (*read)(struct pci_dev *dev, int pos, int size, char *buf); int (*write)(struct pci_dev *dev, int pos, int size, const char *buf); - int (*get_size)(struct pci_dev *dev); void (*release)(struct pci_dev *dev); }; struct pci_vpd { + unsigned int len; struct pci_vpd_ops *ops; struct bin_attribute *attr; /* descriptor for sysfs VPD entry */ }; diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index dabb563f51d..338a3f94b4d 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1670,6 +1670,48 @@ static void __devinit quirk_via_cx700_pci_parking_caching(struct pci_dev *dev) } DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching); +/* + * For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the + * VPD end tag will hang the device. This problem was initially + * observed when a vpd entry was created in sysfs + * ('/sys/bus/pci/devices/<id>/vpd'). A read to this sysfs entry + * will dump 32k of data. Reading a full 32k will cause an access + * beyond the VPD end tag causing the device to hang. Once the device + * is hung, the bnx2 driver will not be able to reset the device. + * We believe that it is legal to read beyond the end tag and + * therefore the solution is to limit the read/write length. + */ +static void __devinit quirk_brcm_570x_limit_vpd(struct pci_dev *dev) +{ + /* Only disable the VPD capability for 5706, 5708, and 5709 rev. A */ + if ((dev->device == PCI_DEVICE_ID_NX2_5706) || + (dev->device == PCI_DEVICE_ID_NX2_5708) || + ((dev->device == PCI_DEVICE_ID_NX2_5709) && + (dev->revision & 0xf0) == 0x0)) { + if (dev->vpd) + dev->vpd->len = 0x80; + } +} + +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, + PCI_DEVICE_ID_NX2_5706, + quirk_brcm_570x_limit_vpd); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, + PCI_DEVICE_ID_NX2_5706S, + quirk_brcm_570x_limit_vpd); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, + PCI_DEVICE_ID_NX2_5708, + quirk_brcm_570x_limit_vpd); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, + PCI_DEVICE_ID_NX2_5708S, + quirk_brcm_570x_limit_vpd); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, + PCI_DEVICE_ID_NX2_5709, + quirk_brcm_570x_limit_vpd); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, + PCI_DEVICE_ID_NX2_5709S, + quirk_brcm_570x_limit_vpd); + #ifdef CONFIG_PCI_MSI /* Some chipsets do not support MSI. We cannot easily rely on setting * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually @@ -1685,6 +1727,7 @@ static void __init quirk_disable_all_msi(struct pci_dev *dev) DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi); /* Disable MSI on chipsets that are known to not support it */ diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 7e3ad4f3b34..58b7336640f 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -126,12 +126,25 @@ int rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) int err; struct rtc_time before, now; int first_time = 1; + unsigned long t_now, t_alm; + enum { none, day, month, year } missing = none; + unsigned days; - /* The lower level RTC driver may not be capable of filling - * in all fields of the rtc_time struct (eg. rtc-cmos), - * and so might instead return -1 in some fields. - * We deal with that here by grabbing a current RTC timestamp - * and using values from that for any missing (-1) values. + /* The lower level RTC driver may return -1 in some fields, + * creating invalid alarm->time values, for reasons like: + * + * - The hardware may not be capable of filling them in; + * many alarms match only on time-of-day fields, not + * day/month/year calendar data. + * + * - Some hardware uses illegal values as "wildcard" match + * values, which non-Linux firmware (like a BIOS) may try + * to set up as e.g. "alarm 15 minutes after each hour". + * Linux uses only oneshot alarms. + * + * When we see that here, we deal with it by using values from + * a current RTC timestamp for any missing (-1) values. The + * RTC driver prevents "periodic alarm" modes. * * But this can be racey, because some fields of the RTC timestamp * may have wrapped in the interval since we read the RTC alarm, @@ -174,6 +187,10 @@ int rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) if (!alarm->enabled) return 0; + /* full-function RTCs won't have such missing fields */ + if (rtc_valid_tm(&alarm->time) == 0) + return 0; + /* get the "after" timestamp, to detect wrapped fields */ err = rtc_read_time(rtc, &now); if (err < 0) @@ -183,22 +200,85 @@ int rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) } while ( before.tm_min != now.tm_min || before.tm_hour != now.tm_hour || before.tm_mon != now.tm_mon - || before.tm_year != now.tm_year - || before.tm_isdst != now.tm_isdst); + || before.tm_year != now.tm_year); - /* Fill in any missing alarm fields using the timestamp */ + /* Fill in the missing alarm fields using the timestamp; we + * know there's at least one since alarm->time is invalid. + */ if (alarm->time.tm_sec == -1) alarm->time.tm_sec = now.tm_sec; if (alarm->time.tm_min == -1) alarm->time.tm_min = now.tm_min; if (alarm->time.tm_hour == -1) alarm->time.tm_hour = now.tm_hour; - if (alarm->time.tm_mday == -1) + + /* For simplicity, only support date rollover for now */ + if (alarm->time.tm_mday == -1) { alarm->time.tm_mday = now.tm_mday; - if (alarm->time.tm_mon == -1) + missing = day; + } + if (alarm->time.tm_mon == -1) { alarm->time.tm_mon = now.tm_mon; - if (alarm->time.tm_year == -1) + if (missing == none) + missing = month; + } + if (alarm->time.tm_year == -1) { alarm->time.tm_year = now.tm_year; + if (missing == none) + missing = year; + } + + /* with luck, no rollover is needed */ + rtc_tm_to_time(&now, &t_now); + rtc_tm_to_time(&alarm->time, &t_alm); + if (t_now < t_alm) + goto done; + + switch (missing) { + + /* 24 hour rollover ... if it's now 10am Monday, an alarm that + * that will trigger at 5am will do so at 5am Tuesday, which + * could also be in the next month or year. This is a common + * case, especially for PCs. + */ + case day: + dev_dbg(&rtc->dev, "alarm rollover: %s\n", "day"); + t_alm += 24 * 60 * 60; + rtc_time_to_tm(t_alm, &alarm->time); + break; + + /* Month rollover ... if it's the 31th, an alarm on the 3rd will + * be next month. An alarm matching on the 30th, 29th, or 28th + * may end up in the month after that! Many newer PCs support + * this type of alarm. + */ + case month: + dev_dbg(&rtc->dev, "alarm rollover: %s\n", "month"); + do { + if (alarm->time.tm_mon < 11) + alarm->time.tm_mon++; + else { + alarm->time.tm_mon = 0; + alarm->time.tm_year++; + } + days = rtc_month_days(alarm->time.tm_mon, + alarm->time.tm_year); + } while (days < alarm->time.tm_mday); + break; + + /* Year rollover ... easy except for leap years! */ + case year: + dev_dbg(&rtc->dev, "alarm rollover: %s\n", "year"); + do { + alarm->time.tm_year++; + } while (!rtc_valid_tm(&alarm->time)); + break; + + default: + dev_warn(&rtc->dev, "alarm rollover not handled\n"); + } + +done: return 0; } EXPORT_SYMBOL_GPL(rtc_read_alarm); diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c index 82f62d25f92..67421b0d3a7 100644 --- a/drivers/rtc/rtc-sa1100.c +++ b/drivers/rtc/rtc-sa1100.c @@ -331,14 +331,14 @@ static int sa1100_rtc_probe(struct platform_device *pdev) RCNR = 0; } + device_init_wakeup(&pdev->dev, 1); + rtc = rtc_device_register(pdev->name, &pdev->dev, &sa1100_rtc_ops, THIS_MODULE); if (IS_ERR(rtc)) return PTR_ERR(rtc); - device_init_wakeup(&pdev->dev, 1); - platform_set_drvdata(pdev, rtc); return 0; diff --git a/drivers/rtc/rtc-x1205.c b/drivers/rtc/rtc-x1205.c index eaf55945f21..7dcfba1bbfe 100644 --- a/drivers/rtc/rtc-x1205.c +++ b/drivers/rtc/rtc-x1205.c @@ -71,6 +71,7 @@ #define X1205_SR_RTCF 0x01 /* Clock failure */ #define X1205_SR_WEL 0x02 /* Write Enable Latch */ #define X1205_SR_RWEL 0x04 /* Register Write Enable */ +#define X1205_SR_AL0 0x20 /* Alarm 0 match */ #define X1205_DTR_DTR0 0x01 #define X1205_DTR_DTR1 0x02 @@ -78,6 +79,8 @@ #define X1205_HR_MIL 0x80 /* Set in ccr.hour for 24 hr mode */ +#define X1205_INT_AL0E 0x20 /* Alarm 0 enable */ + static struct i2c_driver x1205_driver; /* @@ -89,8 +92,8 @@ static int x1205_get_datetime(struct i2c_client *client, struct rtc_time *tm, unsigned char reg_base) { unsigned char dt_addr[2] = { 0, reg_base }; - unsigned char buf[8]; + int i; struct i2c_msg msgs[] = { { client->addr, 0, 2, dt_addr }, /* setup read ptr */ @@ -98,7 +101,7 @@ static int x1205_get_datetime(struct i2c_client *client, struct rtc_time *tm, }; /* read date registers */ - if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) { + if (i2c_transfer(client->adapter, &msgs[0], 2) != 2) { dev_err(&client->dev, "%s: read error\n", __func__); return -EIO; } @@ -110,6 +113,11 @@ static int x1205_get_datetime(struct i2c_client *client, struct rtc_time *tm, buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], buf[7]); + /* Mask out the enable bits if these are alarm registers */ + if (reg_base < X1205_CCR_BASE) + for (i = 0; i <= 4; i++) + buf[i] &= 0x7F; + tm->tm_sec = BCD2BIN(buf[CCR_SEC]); tm->tm_min = BCD2BIN(buf[CCR_MIN]); tm->tm_hour = BCD2BIN(buf[CCR_HOUR] & 0x3F); /* hr is 0-23 */ @@ -138,7 +146,7 @@ static int x1205_get_status(struct i2c_client *client, unsigned char *sr) }; /* read status register */ - if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) { + if (i2c_transfer(client->adapter, &msgs[0], 2) != 2) { dev_err(&client->dev, "%s: read error\n", __func__); return -EIO; } @@ -147,10 +155,11 @@ static int x1205_get_status(struct i2c_client *client, unsigned char *sr) } static int x1205_set_datetime(struct i2c_client *client, struct rtc_time *tm, - int datetoo, u8 reg_base) + int datetoo, u8 reg_base, unsigned char alm_enable) { - int i, xfer; + int i, xfer, nbytes; unsigned char buf[8]; + unsigned char rdata[10] = { 0, reg_base }; static const unsigned char wel[3] = { 0, X1205_REG_SR, X1205_SR_WEL }; @@ -189,6 +198,11 @@ static int x1205_set_datetime(struct i2c_client *client, struct rtc_time *tm, buf[CCR_Y2K] = BIN2BCD(tm->tm_year / 100); } + /* If writing alarm registers, set compare bits on registers 0-4 */ + if (reg_base < X1205_CCR_BASE) + for (i = 0; i <= 4; i++) + buf[i] |= 0x80; + /* this sequence is required to unlock the chip */ if ((xfer = i2c_master_send(client, wel, 3)) != 3) { dev_err(&client->dev, "%s: wel - %d\n", __func__, xfer); @@ -200,19 +214,57 @@ static int x1205_set_datetime(struct i2c_client *client, struct rtc_time *tm, return -EIO; } + /* write register's data */ - for (i = 0; i < (datetoo ? 8 : 3); i++) { - unsigned char rdata[3] = { 0, reg_base + i, buf[i] }; + if (datetoo) + nbytes = 8; + else + nbytes = 3; + for (i = 0; i < nbytes; i++) + rdata[2+i] = buf[i]; + + xfer = i2c_master_send(client, rdata, nbytes+2); + if (xfer != nbytes+2) { + dev_err(&client->dev, + "%s: result=%d addr=%02x, data=%02x\n", + __func__, + xfer, rdata[1], rdata[2]); + return -EIO; + } + + /* If we wrote to the nonvolatile region, wait 10msec for write cycle*/ + if (reg_base < X1205_CCR_BASE) { + unsigned char al0e[3] = { 0, X1205_REG_INT, 0 }; + + msleep(10); - xfer = i2c_master_send(client, rdata, 3); + /* ...and set or clear the AL0E bit in the INT register */ + + /* Need to set RWEL again as the write has cleared it */ + xfer = i2c_master_send(client, rwel, 3); if (xfer != 3) { dev_err(&client->dev, - "%s: xfer=%d addr=%02x, data=%02x\n", + "%s: aloe rwel - %d\n", __func__, - xfer, rdata[1], rdata[2]); + xfer); + return -EIO; + } + + if (alm_enable) + al0e[2] = X1205_INT_AL0E; + + xfer = i2c_master_send(client, al0e, 3); + if (xfer != 3) { + dev_err(&client->dev, + "%s: al0e - %d\n", + __func__, + xfer); return -EIO; } - }; + + /* and wait 10msec again for this write to complete */ + msleep(10); + } /* disable further writes */ if ((xfer = i2c_master_send(client, diswe, 3)) != 3) { @@ -230,9 +282,9 @@ static int x1205_fix_osc(struct i2c_client *client) tm.tm_hour = tm.tm_min = tm.tm_sec = 0; - if ((err = x1205_set_datetime(client, &tm, 0, X1205_CCR_BASE)) < 0) - dev_err(&client->dev, - "unable to restart the oscillator\n"); + err = x1205_set_datetime(client, &tm, 0, X1205_CCR_BASE, 0); + if (err < 0) + dev_err(&client->dev, "unable to restart the oscillator\n"); return err; } @@ -248,7 +300,7 @@ static int x1205_get_dtrim(struct i2c_client *client, int *trim) }; /* read dtr register */ - if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) { + if (i2c_transfer(client->adapter, &msgs[0], 2) != 2) { dev_err(&client->dev, "%s: read error\n", __func__); return -EIO; } @@ -280,7 +332,7 @@ static int x1205_get_atrim(struct i2c_client *client, int *trim) }; /* read atr register */ - if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) { + if (i2c_transfer(client->adapter, &msgs[0], 2) != 2) { dev_err(&client->dev, "%s: read error\n", __func__); return -EIO; } @@ -403,14 +455,33 @@ static int x1205_validate_client(struct i2c_client *client) static int x1205_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) { - return x1205_get_datetime(to_i2c_client(dev), - &alrm->time, X1205_ALM0_BASE); + int err; + unsigned char intreg, status; + static unsigned char int_addr[2] = { 0, X1205_REG_INT }; + struct i2c_client *client = to_i2c_client(dev); + struct i2c_msg msgs[] = { + { client->addr, 0, 2, int_addr }, /* setup read ptr */ + { client->addr, I2C_M_RD, 1, &intreg }, /* read INT register */ + }; + + /* read interrupt register and status register */ + if (i2c_transfer(client->adapter, &msgs[0], 2) != 2) { + dev_err(&client->dev, "%s: read error\n", __func__); + return -EIO; + } + err = x1205_get_status(client, &status); + if (err == 0) { + alrm->pending = (status & X1205_SR_AL0) ? 1 : 0; + alrm->enabled = (intreg & X1205_INT_AL0E) ? 1 : 0; + err = x1205_get_datetime(client, &alrm->time, X1205_ALM0_BASE); + } + return err; } static int x1205_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) { return x1205_set_datetime(to_i2c_client(dev), - &alrm->time, 1, X1205_ALM0_BASE); + &alrm->time, 1, X1205_ALM0_BASE, alrm->enabled); } static int x1205_rtc_read_time(struct device *dev, struct rtc_time *tm) @@ -422,7 +493,7 @@ static int x1205_rtc_read_time(struct device *dev, struct rtc_time *tm) static int x1205_rtc_set_time(struct device *dev, struct rtc_time *tm) { return x1205_set_datetime(to_i2c_client(dev), - tm, 1, X1205_CCR_BASE); + tm, 1, X1205_CCR_BASE, 0); } static int x1205_rtc_proc(struct device *dev, struct seq_file *seq) diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c index a0b6d414953..59fbef08d69 100644 --- a/drivers/scsi/esp_scsi.c +++ b/drivers/scsi/esp_scsi.c @@ -2359,6 +2359,24 @@ void scsi_esp_unregister(struct esp *esp) } EXPORT_SYMBOL(scsi_esp_unregister); +static int esp_target_alloc(struct scsi_target *starget) +{ + struct esp *esp = shost_priv(dev_to_shost(&starget->dev)); + struct esp_target_data *tp = &esp->target[starget->id]; + + tp->starget = starget; + + return 0; +} + +static void esp_target_destroy(struct scsi_target *starget) +{ + struct esp *esp = shost_priv(dev_to_shost(&starget->dev)); + struct esp_target_data *tp = &esp->target[starget->id]; + + tp->starget = NULL; +} + static int esp_slave_alloc(struct scsi_device *dev) { struct esp *esp = shost_priv(dev->host); @@ -2370,8 +2388,6 @@ static int esp_slave_alloc(struct scsi_device *dev) return -ENOMEM; dev->hostdata = lp; - tp->starget = dev->sdev_target; - spi_min_period(tp->starget) = esp->min_period; spi_max_offset(tp->starget) = 15; @@ -2608,6 +2624,8 @@ struct scsi_host_template scsi_esp_template = { .name = "esp", .info = esp_info, .queuecommand = esp_queuecommand, + .target_alloc = esp_target_alloc, + .target_destroy = esp_target_destroy, .slave_alloc = esp_slave_alloc, .slave_configure = esp_slave_configure, .slave_destroy = esp_slave_destroy, diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c index 45df83b9d84..0fe031f003e 100644 --- a/drivers/scsi/ses.c +++ b/drivers/scsi/ses.c @@ -61,7 +61,7 @@ static int ses_probe(struct device *dev) return err; } -#define SES_TIMEOUT 30 +#define SES_TIMEOUT (30 * HZ) #define SES_RETRIES 3 static int ses_recv_diag(struct scsi_device *sdev, int page_code, diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c index c9b64e73c98..42d2e108b67 100644 --- a/drivers/serial/serial_core.c +++ b/drivers/serial/serial_core.c @@ -1991,7 +1991,9 @@ struct uart_match { static int serial_match_port(struct device *dev, void *data) { struct uart_match *match = data; - dev_t devt = MKDEV(match->driver->major, match->driver->minor) + match->port->line; + struct tty_driver *tty_drv = match->driver->tty_driver; + dev_t devt = MKDEV(tty_drv->major, tty_drv->minor_start) + + match->port->line; return dev->devt == devt; /* Actually, only one tty per port */ } diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index 799337f7fde..f5b60c70389 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -167,14 +167,14 @@ spidev_read(struct file *filp, char __user *buf, size_t count, loff_t *f_pos) mutex_lock(&spidev->buf_lock); status = spidev_sync_read(spidev, count); - if (status == 0) { + if (status > 0) { unsigned long missing; - missing = copy_to_user(buf, spidev->buffer, count); - if (count && missing == count) + missing = copy_to_user(buf, spidev->buffer, status); + if (missing == status) status = -EFAULT; else - status = count - missing; + status = status - missing; } mutex_unlock(&spidev->buf_lock); @@ -200,8 +200,6 @@ spidev_write(struct file *filp, const char __user *buf, missing = copy_from_user(spidev->buffer, buf, count); if (missing == 0) { status = spidev_sync_write(spidev, count); - if (status == 0) - status = count; } else status = -EFAULT; mutex_unlock(&spidev->buf_lock); diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index 4b628526df0..a86e952ed4c 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -12,3 +12,12 @@ menuconfig THERMAL cooling devices. All platforms with ACPI thermal support can use this driver. If you want this support, you should say Y or M here. + +config THERMAL_HWMON + bool "Hardware monitoring support" + depends on HWMON=y || HWMON=THERMAL + help + The generic thermal sysfs driver's hardware monitoring support + requires a 2.10.7/3.0.2 or later lm-sensors userspace. + + Say Y if your user-space is new enough. diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c index 6098787341f..fe07462d594 100644 --- a/drivers/thermal/thermal_sys.c +++ b/drivers/thermal/thermal_sys.c @@ -295,8 +295,8 @@ thermal_cooling_device_trip_point_show(struct device *dev, /* Device management */ -#if defined(CONFIG_HWMON) || \ - (defined(CONFIG_HWMON_MODULE) && defined(CONFIG_THERMAL_MODULE)) +#if defined(CONFIG_THERMAL_HWMON) + /* hwmon sys I/F */ #include <linux/hwmon.h> static LIST_HEAD(thermal_hwmon_list); diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 63c34043b4d..c3201affa0b 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1125,9 +1125,6 @@ static void stop_data_traffic(struct acm *acm) for (i = 0; i < acm->rx_buflimit; i++) usb_kill_urb(acm->ru[i].urb); - INIT_LIST_HEAD(&acm->filled_read_bufs); - INIT_LIST_HEAD(&acm->spare_read_bufs); - tasklet_enable(&acm->urb_task); cancel_work_sync(&acm->work); diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 09a53e7f332..42a436478b7 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -924,6 +924,15 @@ static int register_root_hub(struct usb_hcd *hcd) return retval; } +void usb_enable_root_hub_irq (struct usb_bus *bus) +{ + struct usb_hcd *hcd; + + hcd = container_of (bus, struct usb_hcd, self); + if (hcd->driver->hub_irq_enable && hcd->state != HC_STATE_HALT) + hcd->driver->hub_irq_enable (hcd); +} + /*-------------------------------------------------------------------------*/ @@ -1684,19 +1693,30 @@ EXPORT_SYMBOL_GPL(usb_bus_start_enum); irqreturn_t usb_hcd_irq (int irq, void *__hcd) { struct usb_hcd *hcd = __hcd; - int start = hcd->state; + unsigned long flags; + irqreturn_t rc; - if (unlikely(start == HC_STATE_HALT || - !test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))) - return IRQ_NONE; - if (hcd->driver->irq (hcd) == IRQ_NONE) - return IRQ_NONE; + /* IRQF_DISABLED doesn't work correctly with shared IRQs + * when the first handler doesn't use it. So let's just + * assume it's never used. + */ + local_irq_save(flags); - set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags); + if (unlikely(hcd->state == HC_STATE_HALT || + !test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))) { + rc = IRQ_NONE; + } else if (hcd->driver->irq(hcd) == IRQ_NONE) { + rc = IRQ_NONE; + } else { + set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags); + + if (unlikely(hcd->state == HC_STATE_HALT)) + usb_hc_died(hcd); + rc = IRQ_HANDLED; + } - if (unlikely(hcd->state == HC_STATE_HALT)) - usb_hc_died (hcd); - return IRQ_HANDLED; + local_irq_restore(flags); + return rc; } /*-------------------------------------------------------------------------*/ @@ -1860,6 +1880,13 @@ int usb_add_hcd(struct usb_hcd *hcd, /* enable irqs just before we start the controller */ if (hcd->driver->irq) { + + /* IRQF_DISABLED doesn't work as advertised when used together + * with IRQF_SHARED. As usb_hcd_irq() will always disable + * interrupts we can remove it here. + */ + irqflags &= ~IRQF_DISABLED; + snprintf(hcd->irq_descr, sizeof(hcd->irq_descr), "%s:usb%d", hcd->driver->description, hcd->self.busnum); if ((retval = request_irq(irqnum, &usb_hcd_irq, irqflags, diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h index a0bf5df6cb6..b9de1569b39 100644 --- a/drivers/usb/core/hcd.h +++ b/drivers/usb/core/hcd.h @@ -210,6 +210,8 @@ struct hc_driver { int (*bus_suspend)(struct usb_hcd *); int (*bus_resume)(struct usb_hcd *); int (*start_port_reset)(struct usb_hcd *, unsigned port_num); + void (*hub_irq_enable)(struct usb_hcd *); + /* Needed only if port-change IRQs are level-triggered */ /* force handover of high-speed port to full-speed companion */ void (*relinquish_port)(struct usb_hcd *, int); diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 94789be54ca..4cfe32a16c3 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -713,18 +713,11 @@ static void hub_restart(struct usb_hub *hub, int type) } /* Was the power session lost while we were suspended? */ - switch (type) { - case HUB_RESET_RESUME: - portstatus = 0; - portchange = USB_PORT_STAT_C_CONNECTION; - break; + status = hub_port_status(hub, port1, &portstatus, &portchange); - case HUB_RESET: - case HUB_RESUME: - status = hub_port_status(hub, port1, - &portstatus, &portchange); - break; - } + /* If the device is gone, khubd will handle it later */ + if (status == 0 && !(portstatus & USB_PORT_STAT_CONNECTION)) + continue; /* For "USB_PERSIST"-enabled children we must * mark the child device for reset-resume and @@ -2080,6 +2073,8 @@ int usb_port_resume(struct usb_device *udev) } clear_bit(port1, hub->busy_bits); + if (!hub->hdev->parent && !hub->busy_bits[0]) + usb_enable_root_hub_irq(hub->hdev->bus); if (status == 0) status = finish_port_resume(udev); @@ -3009,6 +3004,11 @@ static void hub_events(void) hub->activating = 0; + /* If this is a root hub, tell the HCD it's okay to + * re-enable port-change interrupts now. */ + if (!hdev->parent && !hub->busy_bits[0]) + usb_enable_root_hub_irq(hdev->bus); + loop_autopm: /* Allow autosuspend if we're not going to run again */ if (list_empty(&hub->event_list)) @@ -3234,6 +3234,8 @@ int usb_reset_device(struct usb_device *udev) break; } clear_bit(port1, parent_hub->busy_bits); + if (!parent_hdev->parent && !parent_hub->busy_bits[0]) + usb_enable_root_hub_irq(parent_hdev->bus); if (ret < 0) goto re_enumerate; diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 35a03095757..90245fd8bac 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -177,6 +177,15 @@ timer_action_done (struct ehci_hcd *ehci, enum ehci_timer_action action) static inline void timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action) { + /* Don't override timeouts which shrink or (later) disable + * the async ring; just the I/O watchdog. Note that if a + * SHRINK were pending, OFF would never be requested. + */ + if (timer_pending(&ehci->watchdog) + && ((BIT(TIMER_ASYNC_SHRINK) | BIT(TIMER_ASYNC_OFF)) + & ehci->actions)) + return; + if (!test_and_set_bit (action, &ehci->actions)) { unsigned long t; @@ -192,15 +201,7 @@ timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action) t = EHCI_SHRINK_JIFFIES; break; } - t += jiffies; - // all timings except IAA watchdog can be overridden. - // async queue SHRINK often precedes IAA. while it's ready - // to go OFF neither can matter, and afterwards the IO - // watchdog stops unless there's still periodic traffic. - if (time_before_eq(t, ehci->watchdog.expires) - && timer_pending (&ehci->watchdog)) - return; - mod_timer (&ehci->watchdog, t); + mod_timer(&ehci->watchdog, t + jiffies); } } diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index c96db1153dc..e534f9de0f0 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -261,6 +261,7 @@ static const struct hc_driver ohci_at91_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-au1xxx.c b/drivers/usb/host/ohci-au1xxx.c index 1b9abdba920..f90fe0c7373 100644 --- a/drivers/usb/host/ohci-au1xxx.c +++ b/drivers/usb/host/ohci-au1xxx.c @@ -288,6 +288,7 @@ static const struct hc_driver ohci_au1xxx_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c index 06aadfb0ec2..5adaf36e47d 100644 --- a/drivers/usb/host/ohci-ep93xx.c +++ b/drivers/usb/host/ohci-ep93xx.c @@ -135,6 +135,7 @@ static struct hc_driver ohci_ep93xx_hc_driver = { .get_frame_number = ohci_get_frame, .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 33f1c1c32ed..a8160d65f32 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -1054,7 +1054,7 @@ MODULE_LICENSE ("GPL"); #ifdef CONFIG_MFD_SM501 #include "ohci-sm501.c" -#define PLATFORM_DRIVER ohci_hcd_sm501_driver +#define SM501_OHCI_DRIVER ohci_hcd_sm501_driver #endif #if !defined(PCI_DRIVER) && \ @@ -1062,6 +1062,7 @@ MODULE_LICENSE ("GPL"); !defined(OF_PLATFORM_DRIVER) && \ !defined(SA1111_DRIVER) && \ !defined(PS3_SYSTEM_BUS_DRIVER) && \ + !defined(SM501_OHCI_DRIVER) && \ !defined(SSB_OHCI_DRIVER) #error "missing bus glue for ohci-hcd" #endif @@ -1121,9 +1122,18 @@ static int __init ohci_hcd_mod_init(void) goto error_ssb; #endif +#ifdef SM501_OHCI_DRIVER + retval = platform_driver_register(&SM501_OHCI_DRIVER); + if (retval < 0) + goto error_sm501; +#endif + return retval; /* Error path */ +#ifdef SM501_OHCI_DRIVER + error_sm501: +#endif #ifdef SSB_OHCI_DRIVER error_ssb: #endif @@ -1159,6 +1169,9 @@ module_init(ohci_hcd_mod_init); static void __exit ohci_hcd_mod_exit(void) { +#ifdef SM501_OHCI_DRIVER + platform_driver_unregister(&SM501_OHCI_DRIVER); +#endif #ifdef SSB_OHCI_DRIVER ssb_driver_unregister(&SSB_OHCI_DRIVER); #endif diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c index 79a78029f89..b56739221d1 100644 --- a/drivers/usb/host/ohci-hub.c +++ b/drivers/usb/host/ohci-hub.c @@ -36,6 +36,18 @@ /*-------------------------------------------------------------------------*/ +/* hcd->hub_irq_enable() */ +static void ohci_rhsc_enable (struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci (hcd); + + spin_lock_irq(&ohci->lock); + if (!ohci->autostop) + del_timer(&hcd->rh_timer); /* Prevent next poll */ + ohci_writel(ohci, OHCI_INTR_RHSC, &ohci->regs->intrenable); + spin_unlock_irq(&ohci->lock); +} + #define OHCI_SCHED_ENABLES \ (OHCI_CTRL_CLE|OHCI_CTRL_BLE|OHCI_CTRL_PLE|OHCI_CTRL_IE) @@ -362,28 +374,18 @@ static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed, int any_connected) { int poll_rh = 1; - int rhsc; - rhsc = ohci_readl(ohci, &ohci->regs->intrenable) & OHCI_INTR_RHSC; switch (ohci->hc_control & OHCI_CTRL_HCFS) { case OHCI_USB_OPER: - /* If no status changes are pending, enable status-change - * interrupts. - */ - if (!rhsc && !changed) { - rhsc = OHCI_INTR_RHSC; - ohci_writel(ohci, rhsc, &ohci->regs->intrenable); - } - - /* Keep on polling until we know a device is connected - * and RHSC is enabled, or until we autostop. - */ + /* keep on polling until we know a device is connected + * and RHSC is enabled */ if (!ohci->autostop) { if (any_connected || !device_may_wakeup(&ohci_to_hcd(ohci) ->self.root_hub->dev)) { - if (rhsc) + if (ohci_readl(ohci, &ohci->regs->intrenable) & + OHCI_INTR_RHSC) poll_rh = 0; } else { ohci->autostop = 1; @@ -396,13 +398,12 @@ static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed, ohci->autostop = 0; ohci->next_statechange = jiffies + STATECHANGE_DELAY; - } else if (rhsc && time_after_eq(jiffies, + } else if (time_after_eq(jiffies, ohci->next_statechange) && !ohci->ed_rm_list && !(ohci->hc_control & OHCI_SCHED_ENABLES)) { ohci_rh_suspend(ohci, 1); - poll_rh = 0; } } break; @@ -416,12 +417,6 @@ static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed, else usb_hcd_resume_root_hub(ohci_to_hcd(ohci)); } else { - if (!rhsc && (ohci->autostop || - ohci_to_hcd(ohci)->self.root_hub-> - do_remote_wakeup)) - ohci_writel(ohci, OHCI_INTR_RHSC, - &ohci->regs->intrenable); - /* everything is idle, no need for polling */ poll_rh = 0; } @@ -443,16 +438,12 @@ static inline int ohci_rh_resume(struct ohci_hcd *ohci) static int ohci_root_hub_state_changes(struct ohci_hcd *ohci, int changed, int any_connected) { - /* If RHSC is enabled, don't poll */ - if (ohci_readl(ohci, &ohci->regs->intrenable) & OHCI_INTR_RHSC) - return 0; + int poll_rh = 1; - /* If no status changes are pending, enable status-change interrupts */ - if (!changed) { - ohci_writel(ohci, OHCI_INTR_RHSC, &ohci->regs->intrenable); - return 0; - } - return 1; + /* keep on polling until RHSC is enabled */ + if (ohci_readl(ohci, &ohci->regs->intrenable) & OHCI_INTR_RHSC) + poll_rh = 0; + return poll_rh; } #endif /* CONFIG_PM */ diff --git a/drivers/usb/host/ohci-lh7a404.c b/drivers/usb/host/ohci-lh7a404.c index 96d14fa1d83..13c12ed2225 100644 --- a/drivers/usb/host/ohci-lh7a404.c +++ b/drivers/usb/host/ohci-lh7a404.c @@ -193,6 +193,7 @@ static const struct hc_driver ohci_lh7a404_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index 6859fb5f1d6..3a7c24c0367 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -466,6 +466,7 @@ static const struct hc_driver ohci_omap_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c index 3bf175d95a2..4696cc912e1 100644 --- a/drivers/usb/host/ohci-pci.c +++ b/drivers/usb/host/ohci-pci.c @@ -327,6 +327,7 @@ static const struct hc_driver ohci_pci_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-pnx4008.c b/drivers/usb/host/ohci-pnx4008.c index 664f07ee873..28b458f20cc 100644 --- a/drivers/usb/host/ohci-pnx4008.c +++ b/drivers/usb/host/ohci-pnx4008.c @@ -280,6 +280,7 @@ static const struct hc_driver ohci_pnx4008_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-pnx8550.c b/drivers/usb/host/ohci-pnx8550.c index 28467e288a9..605d59cba28 100644 --- a/drivers/usb/host/ohci-pnx8550.c +++ b/drivers/usb/host/ohci-pnx8550.c @@ -201,6 +201,7 @@ static const struct hc_driver ohci_pnx8550_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c index 50e55db1363..a6725279122 100644 --- a/drivers/usb/host/ohci-ppc-of.c +++ b/drivers/usb/host/ohci-ppc-of.c @@ -72,6 +72,7 @@ static const struct hc_driver ohci_ppc_of_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-ppc-soc.c b/drivers/usb/host/ohci-ppc-soc.c index cd3398b675b..523c3012557 100644 --- a/drivers/usb/host/ohci-ppc-soc.c +++ b/drivers/usb/host/ohci-ppc-soc.c @@ -172,6 +172,7 @@ static const struct hc_driver ohci_ppc_soc_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-ps3.c b/drivers/usb/host/ohci-ps3.c index bfdeb0d22d0..c1935ae537f 100644 --- a/drivers/usb/host/ohci-ps3.c +++ b/drivers/usb/host/ohci-ps3.c @@ -68,6 +68,7 @@ static const struct hc_driver ps3_ohci_hc_driver = { .get_frame_number = ohci_get_frame, .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, .start_port_reset = ohci_start_port_reset, #if defined(CONFIG_PM) .bus_suspend = ohci_bus_suspend, diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 70b0d4b459e..d4ee27d92be 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -298,6 +298,7 @@ static const struct hc_driver ohci_pxa27x_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c index 9c9f3b59186..9b547407c93 100644 --- a/drivers/usb/host/ohci-q.c +++ b/drivers/usb/host/ohci-q.c @@ -952,6 +952,7 @@ rescan_this: struct urb *urb; urb_priv_t *urb_priv; __hc32 savebits; + u32 tdINFO; td = list_entry (entry, struct td, td_list); urb = td->urb; @@ -966,6 +967,17 @@ rescan_this: savebits = *prev & ~cpu_to_hc32 (ohci, TD_MASK); *prev = td->hwNextTD | savebits; + /* If this was unlinked, the TD may not have been + * retired ... so manually save the data toggle. + * The controller ignores the value we save for + * control and ISO endpoints. + */ + tdINFO = hc32_to_cpup(ohci, &td->hwINFO); + if ((tdINFO & TD_T) == TD_T_DATA0) + ed->hwHeadP &= ~cpu_to_hc32(ohci, ED_C); + else if ((tdINFO & TD_T) == TD_T_DATA1) + ed->hwHeadP |= cpu_to_hc32(ohci, ED_C); + /* HC may have partly processed this TD */ td_done (ohci, urb, td); urb_priv->td_cnt++; diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c index a73d2ff322e..ead4772f0f2 100644 --- a/drivers/usb/host/ohci-s3c2410.c +++ b/drivers/usb/host/ohci-s3c2410.c @@ -466,6 +466,7 @@ static const struct hc_driver ohci_s3c2410_hc_driver = { */ .hub_status_data = ohci_s3c2410_hub_status_data, .hub_control = ohci_s3c2410_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-sa1111.c b/drivers/usb/host/ohci-sa1111.c index 99438c65981..0f48f2d9922 100644 --- a/drivers/usb/host/ohci-sa1111.c +++ b/drivers/usb/host/ohci-sa1111.c @@ -231,6 +231,7 @@ static const struct hc_driver ohci_sa1111_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-sh.c b/drivers/usb/host/ohci-sh.c index 60f03cc7ec4..e7ee607278f 100644 --- a/drivers/usb/host/ohci-sh.c +++ b/drivers/usb/host/ohci-sh.c @@ -68,6 +68,7 @@ static const struct hc_driver ohci_sh_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-sm501.c b/drivers/usb/host/ohci-sm501.c index e899a77dfb8..e610698c6b6 100644 --- a/drivers/usb/host/ohci-sm501.c +++ b/drivers/usb/host/ohci-sm501.c @@ -75,6 +75,7 @@ static const struct hc_driver ohci_sm501_hc_driver = { */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/ohci-ssb.c b/drivers/usb/host/ohci-ssb.c index c4265caec78..7275186db31 100644 --- a/drivers/usb/host/ohci-ssb.c +++ b/drivers/usb/host/ohci-ssb.c @@ -81,6 +81,7 @@ static const struct hc_driver ssb_ohci_hc_driver = { .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index f29307405bb..9b6323f768b 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -2934,6 +2934,16 @@ static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num) return 0; } +static void u132_hub_irq_enable(struct usb_hcd *hcd) +{ + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + } else if (u132->going > 0) + dev_err(&u132->platform_dev->dev, "device is being removed\n"); +} + #ifdef CONFIG_PM static int u132_bus_suspend(struct usb_hcd *hcd) @@ -2985,6 +2995,7 @@ static struct hc_driver u132_hc_driver = { .bus_suspend = u132_bus_suspend, .bus_resume = u132_bus_resume, .start_port_reset = u132_start_port_reset, + .hub_irq_enable = u132_hub_irq_enable, }; /* diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c index cb7fa0eaf3a..33182f4c226 100644 --- a/drivers/usb/misc/sisusbvga/sisusb.c +++ b/drivers/usb/misc/sisusbvga/sisusb.c @@ -3264,8 +3264,6 @@ static void sisusb_disconnect(struct usb_interface *intf) /* decrement our usage count */ kref_put(&sisusb->kref, sisusb_delete); - - dev_info(&sisusb->sisusb_dev->dev, "Disconnected\n"); } static struct usb_device_id sisusb_table [] = { diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 5234e7a3bd2..0ff4a3971e4 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -637,6 +637,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID), .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) }, + { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) }, { }, /* Optional parameter entry */ { } /* Terminating entry */ }; diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h index 06e0ecabb3e..8302eca893e 100644 --- a/drivers/usb/serial/ftdi_sio.h +++ b/drivers/usb/serial/ftdi_sio.h @@ -828,6 +828,9 @@ /* Propox devices */ #define FTDI_PROPOX_JTAGCABLEII_PID 0xD738 +/* Rig Expert Ukraine devices */ +#define FTDI_REU_TINY_PID 0xED22 /* RigExpert Tiny */ + /* Commands */ #define FTDI_SIO_RESET 0 /* Reset the port */ #define FTDI_SIO_MODEM_CTRL 1 /* Set the modem control register */ diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index ea924dc4849..d9fb3768a2d 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c @@ -570,7 +570,12 @@ static struct usb_serial_driver ipaq_device = { .description = "PocketPC PDA", .usb_driver = &ipaq_driver, .id_table = ipaq_id_table, - .num_ports = 2, + /* + * some devices have an extra endpoint, which + * must be ignored as it would make the core + * create a second port which oopses when used + */ + .num_ports = 1, .open = ipaq_open, .close = ipaq_close, .attach = ipaq_startup, diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 43cfde83a93..a73420dd052 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -306,6 +306,7 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) }, { USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) }, { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) }, + { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */ { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */ { USB_DEVICE(MAXON_VENDOR_ID, 0x6280) }, /* BP3-USB & BP3-EXT HSDPA */ { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_UC864E) }, diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 103195abd41..2a0dd1b50dc 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -57,6 +57,7 @@ static struct usb_device_id id_table [] = { { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_PHAROS) }, { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_ALDIGA) }, { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_MMX) }, + { USB_DEVICE(PL2303_VENDOR_ID, PL2303_PRODUCT_ID_GPRS) }, { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID) }, { USB_DEVICE(IODATA_VENDOR_ID, IODATA_PRODUCT_ID_RSAQ5) }, { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID) }, diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h index cff160abb13..6ac3bbcf7a2 100644 --- a/drivers/usb/serial/pl2303.h +++ b/drivers/usb/serial/pl2303.h @@ -15,6 +15,7 @@ #define PL2303_PRODUCT_ID_RSAQ3 0xaaa2 #define PL2303_PRODUCT_ID_ALDIGA 0x0611 #define PL2303_PRODUCT_ID_MMX 0x0612 +#define PL2303_PRODUCT_ID_GPRS 0x0609 #define ATEN_VENDOR_ID 0x0557 #define ATEN_VENDOR_ID2 0x0547 diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 45fe3663fa7..39a7c11795c 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -402,11 +402,19 @@ UNUSUAL_DEV( 0x04a5, 0x3010, 0x0100, 0x0100, US_FL_IGNORE_RESIDUE ), #ifdef CONFIG_USB_STORAGE_CYPRESS_ATACB +/* CY7C68300 : support atacb */ UNUSUAL_DEV( 0x04b4, 0x6830, 0x0000, 0x9999, "Cypress", "Cypress AT2LP", US_SC_CYP_ATACB, US_PR_DEVICE, NULL, 0), + +/* CY7C68310 : support atacb and atacb2 */ +UNUSUAL_DEV( 0x04b4, 0x6831, 0x0000, 0x9999, + "Cypress", + "Cypress ISD-300LP", + US_SC_CYP_ATACB, US_PR_DEVICE, NULL, + 0), #endif /* Reported by Simon Levitt <simon@whattf.com> diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 002b61b4f0f..e0c5f96b273 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -1825,12 +1825,13 @@ config FB_FSL_DIU config FB_W100 tristate "W100 frame buffer support" - depends on FB && PXA_SHARPSL + depends on FB && ARCH_PXA select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT ---help--- Frame buffer driver for the w100 as found on the Sharp SL-Cxx series. + It can also drive the w3220 chip found on iPAQ hx4700. This driver is also available as a module ( = code which can be inserted and removed from the running kernel whenever you want). The diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c index 0a2785361ca..09d7e22c6fe 100644 --- a/drivers/video/fsl-diu-fb.c +++ b/drivers/video/fsl-diu-fb.c @@ -286,7 +286,7 @@ static struct diu_pool pool; * rheap and make the furture large allocation fail. */ -void *fsl_diu_alloc(unsigned long size, phys_addr_t *phys) +static void *fsl_diu_alloc(unsigned long size, phys_addr_t *phys) { void *virt; @@ -311,12 +311,12 @@ void *fsl_diu_alloc(unsigned long size, phys_addr_t *phys) memset(virt, 0, size); } - pr_debug("rh virt=%p phys=%lx\n", virt, *phys); + pr_debug("rh virt=%p phys=%llx\n", virt, (unsigned long long)*phys); return virt; } -void fsl_diu_free(void *p, unsigned long size) +static void fsl_diu_free(void *p, unsigned long size) { pr_debug("p=%p size=%lu\n", p, size); @@ -770,7 +770,7 @@ static int map_video_memory(struct fb_info *info) info->fix.smem_len = info->fix.line_length * info->var.yres_virtual; pr_debug("MAP_VIDEO_MEMORY: smem_len = %d\n", info->fix.smem_len); info->screen_base = fsl_diu_alloc(info->fix.smem_len, &phys); - if (info->screen_base == 0) { + if (info->screen_base == NULL) { printk(KERN_ERR "Unable to allocate fb memory\n"); return -ENOMEM; } @@ -788,7 +788,7 @@ static int map_video_memory(struct fb_info *info) static void unmap_video_memory(struct fb_info *info) { fsl_diu_free(info->screen_base, info->fix.smem_len); - info->screen_base = 0; + info->screen_base = NULL; info->fix.smem_start = 0; info->fix.smem_len = 0; } @@ -1158,7 +1158,7 @@ static int init_fbinfo(struct fb_info *info) return 0; } -static int install_fb(struct fb_info *info) +static int __devinit install_fb(struct fb_info *info) { int rc; struct mfb_info *mfbi = info->par; @@ -1233,7 +1233,7 @@ static int install_fb(struct fb_info *info) return 0; } -static void __exit uninstall_fb(struct fb_info *info) +static void uninstall_fb(struct fb_info *info) { struct mfb_info *mfbi = info->par; @@ -1287,7 +1287,7 @@ static int request_irq_local(int irq) /* Read to clear the status */ status = in_be32(&hw->int_status); - ret = request_irq(irq, fsl_diu_isr, 0, "diu", 0); + ret = request_irq(irq, fsl_diu_isr, 0, "diu", NULL); if (ret) pr_info("Request diu IRQ failed.\n"); else { @@ -1312,7 +1312,7 @@ static void free_irq_local(int irq) /* Disable all LCDC interrupt */ out_be32(&hw->int_mask, 0x1f); - free_irq(irq, 0); + free_irq(irq, NULL); } #ifdef CONFIG_PM @@ -1353,7 +1353,8 @@ static int allocate_buf(struct diu_addr *buf, u32 size, u32 bytes_align) dma_addr_t paddr = 0; ssize = size + bytes_align; - buf->vaddr = dma_alloc_coherent(0, ssize, &paddr, GFP_DMA | __GFP_ZERO); + buf->vaddr = dma_alloc_coherent(NULL, ssize, &paddr, GFP_DMA | + __GFP_ZERO); if (!buf->vaddr) return -ENOMEM; @@ -1371,7 +1372,7 @@ static int allocate_buf(struct diu_addr *buf, u32 size, u32 bytes_align) static void free_buf(struct diu_addr *buf, u32 size, u32 bytes_align) { - dma_free_coherent(0, size + bytes_align, + dma_free_coherent(NULL, size + bytes_align, buf->vaddr, (buf->paddr - buf->offset)); return; } @@ -1411,7 +1412,7 @@ static ssize_t show_monitor(struct device *device, return diu_ops.show_monitor_port(machine_data->monitor_port, buf); } -static int fsl_diu_probe(struct of_device *ofdev, +static int __devinit fsl_diu_probe(struct of_device *ofdev, const struct of_device_id *match) { struct device_node *np = ofdev->node; diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index 7dcda187d9b..fafe7db20d6 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -1246,7 +1246,7 @@ static int pxafb_resume(struct platform_device *dev) * cache. Once this area is remapped, all virtual memory * access to the video memory should occur at the new region. */ -static int __init pxafb_map_video_memory(struct pxafb_info *fbi) +static int __devinit pxafb_map_video_memory(struct pxafb_info *fbi) { /* * We reserve one page for the palette, plus the size @@ -1348,7 +1348,7 @@ decode_mode: pxafb_decode_mode_info(fbi, inf->modes, inf->num_modes); } -static struct pxafb_info * __init pxafb_init_fbinfo(struct device *dev) +static struct pxafb_info * __devinit pxafb_init_fbinfo(struct device *dev) { struct pxafb_info *fbi; void *addr; @@ -1410,7 +1410,7 @@ static struct pxafb_info * __init pxafb_init_fbinfo(struct device *dev) } #ifdef CONFIG_FB_PXA_PARAMETERS -static int __init parse_opt_mode(struct device *dev, const char *this_opt) +static int __devinit parse_opt_mode(struct device *dev, const char *this_opt) { struct pxafb_mach_info *inf = dev->platform_data; @@ -1469,7 +1469,7 @@ done: return 0; } -static int __init parse_opt(struct device *dev, char *this_opt) +static int __devinit parse_opt(struct device *dev, char *this_opt) { struct pxafb_mach_info *inf = dev->platform_data; struct pxafb_mode_info *mode = &inf->modes[0]; @@ -1567,7 +1567,7 @@ static int __init parse_opt(struct device *dev, char *this_opt) return 0; } -static int __init pxafb_parse_options(struct device *dev, char *options) +static int __devinit pxafb_parse_options(struct device *dev, char *options) { char *this_opt; int ret; @@ -1588,8 +1588,8 @@ static int __init pxafb_parse_options(struct device *dev, char *options) static char g_options[256] __devinitdata = ""; -#ifndef CONFIG_MODULES -static int __devinit pxafb_setup_options(void) +#ifndef MODULE +static int __init pxafb_setup_options(void) { char *options = NULL; @@ -1613,7 +1613,7 @@ MODULE_PARM_DESC(options, "LCD parameters (see Documentation/fb/pxafb.txt)"); #define pxafb_setup_options() (0) #endif -static int __init pxafb_probe(struct platform_device *dev) +static int __devinit pxafb_probe(struct platform_device *dev) { struct pxafb_info *fbi; struct pxafb_mach_info *inf; @@ -1685,14 +1685,14 @@ static int __init pxafb_probe(struct platform_device *dev) if (r == NULL) { dev_err(&dev->dev, "no I/O memory resource defined\n"); ret = -ENODEV; - goto failed; + goto failed_fbi; } r = request_mem_region(r->start, r->end - r->start + 1, dev->name); if (r == NULL) { dev_err(&dev->dev, "failed to request I/O memory\n"); ret = -EBUSY; - goto failed; + goto failed_fbi; } fbi->mmio_base = ioremap(r->start, r->end - r->start + 1); @@ -1735,8 +1735,17 @@ static int __init pxafb_probe(struct platform_device *dev) * This makes sure that our colour bitfield * descriptors are correctly initialised. */ - pxafb_check_var(&fbi->fb.var, &fbi->fb); - pxafb_set_par(&fbi->fb); + ret = pxafb_check_var(&fbi->fb.var, &fbi->fb); + if (ret) { + dev_err(&dev->dev, "failed to get suitable mode\n"); + goto failed_free_irq; + } + + ret = pxafb_set_par(&fbi->fb); + if (ret) { + dev_err(&dev->dev, "Failed to set parameters\n"); + goto failed_free_irq; + } platform_set_drvdata(dev, fbi); @@ -1744,7 +1753,7 @@ static int __init pxafb_probe(struct platform_device *dev) if (ret < 0) { dev_err(&dev->dev, "Failed to register framebuffer device: %d\n", ret); - goto failed_free_irq; + goto failed_free_cmap; } #ifdef CONFIG_CPU_FREQ @@ -1763,18 +1772,23 @@ static int __init pxafb_probe(struct platform_device *dev) return 0; +failed_free_cmap: + if (fbi->fb.cmap.len) + fb_dealloc_cmap(&fbi->fb.cmap); failed_free_irq: free_irq(irq, fbi); -failed_free_res: - release_mem_region(r->start, r->end - r->start + 1); -failed_free_io: - iounmap(fbi->mmio_base); failed_free_mem: dma_free_writecombine(&dev->dev, fbi->map_size, fbi->map_cpu, fbi->map_dma); -failed: +failed_free_io: + iounmap(fbi->mmio_base); +failed_free_res: + release_mem_region(r->start, r->end - r->start + 1); +failed_fbi: + clk_put(fbi->clk); platform_set_drvdata(dev, NULL); kfree(fbi); +failed: return ret; } @@ -1787,7 +1801,7 @@ static struct platform_driver pxafb_driver = { }, }; -static int __devinit pxafb_init(void) +static int __init pxafb_init(void) { if (pxafb_setup_options()) return -EINVAL; diff --git a/drivers/video/w100fb.c b/drivers/video/w100fb.c index 30469bf906e..d0674f1e3f1 100644 --- a/drivers/video/w100fb.c +++ b/drivers/video/w100fb.c @@ -1003,6 +1003,7 @@ static struct w100_pll_info xtal_14318000[] = { static struct w100_pll_info xtal_16000000[] = { /*freq M N_int N_fac tfgoal lock_time */ { 72, 1, 8, 0, 0xe0, 48}, /* tfgoal guessed */ + { 80, 1, 9, 0, 0xe0, 13}, /* tfgoal guessed */ { 95, 1, 10, 7, 0xe0, 38}, /* tfgoal guessed */ { 96, 1, 11, 0, 0xe0, 36}, /* tfgoal guessed */ { 0, 0, 0, 0, 0, 0}, diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h index fd01d90cada..57997fa14e6 100644 --- a/fs/9p/v9fs_vfs.h +++ b/fs/9p/v9fs_vfs.h @@ -51,4 +51,4 @@ int v9fs_dir_release(struct inode *inode, struct file *filp); int v9fs_file_open(struct inode *inode, struct file *file); void v9fs_inode2stat(struct inode *inode, struct p9_stat *stat); void v9fs_dentry_release(struct dentry *); -int v9fs_uflags2omode(int uflags); +int v9fs_uflags2omode(int uflags, int extended); diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c index 0d55affe37d..52944d2249a 100644 --- a/fs/9p/vfs_file.c +++ b/fs/9p/vfs_file.c @@ -59,7 +59,7 @@ int v9fs_file_open(struct inode *inode, struct file *file) P9_DPRINTK(P9_DEBUG_VFS, "inode: %p file: %p \n", inode, file); v9ses = v9fs_inode2v9ses(inode); - omode = v9fs_uflags2omode(file->f_flags); + omode = v9fs_uflags2omode(file->f_flags, v9fs_extended(v9ses)); fid = file->private_data; if (!fid) { fid = v9fs_fid_clone(file->f_path.dentry); @@ -75,6 +75,8 @@ int v9fs_file_open(struct inode *inode, struct file *file) inode->i_size = 0; inode->i_blocks = 0; } + if ((file->f_flags & O_APPEND) && (!v9fs_extended(v9ses))) + generic_file_llseek(file, 0, SEEK_END); } file->private_data = fid; diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 40fa807bd92..c95295c6504 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -132,10 +132,10 @@ static int p9mode2unixmode(struct v9fs_session_info *v9ses, int mode) /** * v9fs_uflags2omode- convert posix open flags to plan 9 mode bits * @uflags: flags to convert - * + * @extended: if .u extensions are active */ -int v9fs_uflags2omode(int uflags) +int v9fs_uflags2omode(int uflags, int extended) { int ret; @@ -155,14 +155,16 @@ int v9fs_uflags2omode(int uflags) break; } - if (uflags & O_EXCL) - ret |= P9_OEXCL; - if (uflags & O_TRUNC) ret |= P9_OTRUNC; - if (uflags & O_APPEND) - ret |= P9_OAPPEND; + if (extended) { + if (uflags & O_EXCL) + ret |= P9_OEXCL; + + if (uflags & O_APPEND) + ret |= P9_OAPPEND; + } return ret; } @@ -506,7 +508,7 @@ v9fs_vfs_create(struct inode *dir, struct dentry *dentry, int mode, flags = O_RDWR; fid = v9fs_create(v9ses, dir, dentry, NULL, perm, - v9fs_uflags2omode(flags)); + v9fs_uflags2omode(flags, v9fs_extended(v9ses))); if (IS_ERR(fid)) { err = PTR_ERR(fid); fid = NULL; diff --git a/fs/Kconfig b/fs/Kconfig index cf12c403b8c..2694648cbd1 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -830,7 +830,7 @@ config NTFS_FS from the project web site. For more information see <file:Documentation/filesystems/ntfs.txt> - and <http://linux-ntfs.sourceforge.net/>. + and <http://www.linux-ntfs.org/>. To compile this file system support as a module, choose M here: the module will be called ntfs. diff --git a/fs/block_dev.c b/fs/block_dev.c index 470c10ceb0f..10d8a0aa871 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -931,8 +931,16 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part) struct gendisk *disk; int ret; int part; + int perm = 0; - ret = devcgroup_inode_permission(bdev->bd_inode, file->f_mode); + if (file->f_mode & FMODE_READ) + perm |= MAY_READ; + if (file->f_mode & FMODE_WRITE) + perm |= MAY_WRITE; + /* + * hooks: /n/, see "layering violations". + */ + ret = devcgroup_inode_permission(bdev->bd_inode, perm); if (ret != 0) return ret; diff --git a/fs/buffer.c b/fs/buffer.c index a073f3f4f01..0f51c0f7c26 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -821,7 +821,7 @@ static int fsync_buffers_list(spinlock_t *lock, struct list_head *list) * contents - it is a noop if I/O is still in * flight on potentially older contents. */ - ll_rw_block(SWRITE, 1, &bh); + ll_rw_block(SWRITE_SYNC, 1, &bh); brelse(bh); spin_lock(lock); } @@ -2940,16 +2940,19 @@ void ll_rw_block(int rw, int nr, struct buffer_head *bhs[]) for (i = 0; i < nr; i++) { struct buffer_head *bh = bhs[i]; - if (rw == SWRITE) + if (rw == SWRITE || rw == SWRITE_SYNC) lock_buffer(bh); else if (test_set_buffer_locked(bh)) continue; - if (rw == WRITE || rw == SWRITE) { + if (rw == WRITE || rw == SWRITE || rw == SWRITE_SYNC) { if (test_clear_buffer_dirty(bh)) { bh->b_end_io = end_buffer_write_sync; get_bh(bh); - submit_bh(WRITE, bh); + if (rw == SWRITE_SYNC) + submit_bh(WRITE_SYNC, bh); + else + submit_bh(WRITE, bh); continue; } } else { @@ -2978,7 +2981,7 @@ int sync_dirty_buffer(struct buffer_head *bh) if (test_clear_buffer_dirty(bh)) { get_bh(bh); bh->b_end_io = end_buffer_write_sync; - ret = submit_bh(WRITE, bh); + ret = submit_bh(WRITE_SYNC, bh); wait_on_buffer(bh); if (buffer_eopnotsupp(bh)) { clear_buffer_eopnotsupp(bh); diff --git a/fs/dcache.c b/fs/dcache.c index 3ee588d5f58..6068c25b393 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -17,6 +17,7 @@ #include <linux/syscalls.h> #include <linux/string.h> #include <linux/mm.h> +#include <linux/fdtable.h> #include <linux/fs.h> #include <linux/fsnotify.h> #include <linux/slab.h> @@ -106,9 +107,10 @@ static void dentry_lru_remove(struct dentry *dentry) /* * Release the dentry's inode, using the filesystem * d_iput() operation if defined. - * Called with dcache_lock and per dentry lock held, drops both. */ static void dentry_iput(struct dentry * dentry) + __releases(dentry->d_lock) + __releases(dcache_lock) { struct inode *inode = dentry->d_inode; if (inode) { @@ -132,12 +134,13 @@ static void dentry_iput(struct dentry * dentry) * d_kill - kill dentry and return parent * @dentry: dentry to kill * - * Called with dcache_lock and d_lock, releases both. The dentry must - * already be unhashed and removed from the LRU. + * The dentry must already be unhashed and removed from the LRU. * * If this is the root of the dentry tree, return NULL. */ static struct dentry *d_kill(struct dentry *dentry) + __releases(dentry->d_lock) + __releases(dcache_lock) { struct dentry *parent; @@ -383,11 +386,11 @@ restart: * Try to prune ancestors as well. This is necessary to prevent * quadratic behavior of shrink_dcache_parent(), but is also expected * to be beneficial in reducing dentry cache fragmentation. - * - * Called with dcache_lock, drops it and then regains. - * Called with dentry->d_lock held, drops it. */ static void prune_one_dentry(struct dentry * dentry) + __releases(dentry->d_lock) + __releases(dcache_lock) + __acquires(dcache_lock) { __d_drop(dentry); dentry = d_kill(dentry); @@ -1604,10 +1607,9 @@ static int d_isparent(struct dentry *p1, struct dentry *p2) * * Note: If ever the locking in lock_rename() changes, then please * remember to update this too... - * - * On return, dcache_lock will have been unlocked. */ static struct dentry *__d_unalias(struct dentry *dentry, struct dentry *alias) + __releases(dcache_lock) { struct mutex *m1 = NULL, *m2 = NULL; struct dentry *ret; @@ -1743,11 +1745,9 @@ out_nolock: shouldnt_be_hashed: spin_unlock(&dcache_lock); BUG(); - goto shouldnt_be_hashed; } -static int prepend(char **buffer, int *buflen, const char *str, - int namelen) +static int prepend(char **buffer, int *buflen, const char *str, int namelen) { *buflen -= namelen; if (*buflen < 0) @@ -1757,8 +1757,13 @@ static int prepend(char **buffer, int *buflen, const char *str, return 0; } +static int prepend_name(char **buffer, int *buflen, struct qstr *name) +{ + return prepend(buffer, buflen, name->name, name->len); +} + /** - * d_path - return the path of a dentry + * __d_path - return the path of a dentry * @path: the dentry/vfsmount to report * @root: root vfsmnt/dentry (may be modified by this function) * @buffer: buffer to return value in @@ -1779,9 +1784,10 @@ char *__d_path(const struct path *path, struct path *root, { struct dentry *dentry = path->dentry; struct vfsmount *vfsmnt = path->mnt; - char * end = buffer+buflen; - char * retval; + char *end = buffer + buflen; + char *retval; + spin_lock(&vfsmount_lock); prepend(&end, &buflen, "\0", 1); if (!IS_ROOT(dentry) && d_unhashed(dentry) && (prepend(&end, &buflen, " (deleted)", 10) != 0)) @@ -1800,38 +1806,37 @@ char *__d_path(const struct path *path, struct path *root, break; if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) { /* Global root? */ - spin_lock(&vfsmount_lock); if (vfsmnt->mnt_parent == vfsmnt) { - spin_unlock(&vfsmount_lock); goto global_root; } dentry = vfsmnt->mnt_mountpoint; vfsmnt = vfsmnt->mnt_parent; - spin_unlock(&vfsmount_lock); continue; } parent = dentry->d_parent; prefetch(parent); - if ((prepend(&end, &buflen, dentry->d_name.name, - dentry->d_name.len) != 0) || + if ((prepend_name(&end, &buflen, &dentry->d_name) != 0) || (prepend(&end, &buflen, "/", 1) != 0)) goto Elong; retval = end; dentry = parent; } +out: + spin_unlock(&vfsmount_lock); return retval; global_root: retval += 1; /* hit the slash */ - if (prepend(&retval, &buflen, dentry->d_name.name, - dentry->d_name.len) != 0) + if (prepend_name(&retval, &buflen, &dentry->d_name) != 0) goto Elong; root->mnt = vfsmnt; root->dentry = dentry; - return retval; + goto out; + Elong: - return ERR_PTR(-ENAMETOOLONG); + retval = ERR_PTR(-ENAMETOOLONG); + goto out; } /** @@ -1845,9 +1850,9 @@ Elong: * * Returns the buffer or an error code if the path was too long. * - * "buflen" should be positive. Caller holds the dcache_lock. + * "buflen" should be positive. */ -char *d_path(struct path *path, char *buf, int buflen) +char *d_path(const struct path *path, char *buf, int buflen) { char *res; struct path root; @@ -1915,16 +1920,11 @@ char *dentry_path(struct dentry *dentry, char *buf, int buflen) retval = end-1; *retval = '/'; - for (;;) { - struct dentry *parent; - if (IS_ROOT(dentry)) - break; + while (!IS_ROOT(dentry)) { + struct dentry *parent = dentry->d_parent; - parent = dentry->d_parent; prefetch(parent); - - if ((prepend(&end, &buflen, dentry->d_name.name, - dentry->d_name.len) != 0) || + if ((prepend_name(&end, &buflen, &dentry->d_name) != 0) || (prepend(&end, &buflen, "/", 1) != 0)) goto Elong; @@ -1975,7 +1975,7 @@ asmlinkage long sys_getcwd(char __user *buf, unsigned long size) error = -ENOENT; /* Has the current directory has been unlinked? */ spin_lock(&dcache_lock); - if (pwd.dentry->d_parent == pwd.dentry || !d_unhashed(pwd.dentry)) { + if (IS_ROOT(pwd.dentry) || !d_unhashed(pwd.dentry)) { unsigned long len; struct path tmp = root; char * cwd; diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c index 50c994a249a..09a4522f65e 100644 --- a/fs/ecryptfs/miscdev.c +++ b/fs/ecryptfs/miscdev.c @@ -575,13 +575,11 @@ int ecryptfs_init_ecryptfs_miscdev(void) int rc; atomic_set(&ecryptfs_num_miscdev_opens, 0); - mutex_lock(&ecryptfs_daemon_hash_mux); rc = misc_register(&ecryptfs_miscdev); if (rc) printk(KERN_ERR "%s: Failed to register miscellaneous device " "for communications with userspace daemons; rc = [%d]\n", __func__, rc); - mutex_unlock(&ecryptfs_daemon_hash_mux); return rc; } diff --git a/fs/ext3/super.c b/fs/ext3/super.c index fe3119a71ad..2845425077e 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -2875,8 +2875,10 @@ static ssize_t ext3_quota_write(struct super_block *sb, int type, blk++; } out: - if (len == towrite) + if (len == towrite) { + mutex_unlock(&inode->i_mutex); return err; + } if (inode->i_size < off+len-towrite) { i_size_write(inode, off+len-towrite); EXT3_I(inode)->i_disksize = inode->i_size; diff --git a/fs/ext4/super.c b/fs/ext4/super.c index cb96f127c36..02bf2434397 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3337,8 +3337,10 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type, blk++; } out: - if (len == towrite) + if (len == towrite) { + mutex_unlock(&inode->i_mutex); return err; + } if (inode->i_size < off+len-towrite) { i_size_write(inode, off+len-towrite); EXT4_I(inode)->i_disksize = inode->i_size; diff --git a/fs/libfs.c b/fs/libfs.c index 892d41cb338..baeb71ee1cd 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -512,6 +512,20 @@ void simple_release_fs(struct vfsmount **mount, int *count) mntput(mnt); } +/** + * simple_read_from_buffer - copy data from the buffer to user space + * @to: the user space buffer to read to + * @count: the maximum number of bytes to read + * @ppos: the current position in the buffer + * @from: the buffer to read from + * @available: the size of the buffer + * + * The simple_read_from_buffer() function reads up to @count bytes from the + * buffer @from at offset @ppos into the user space address starting at @to. + * + * On success, the number of bytes read is returned and the offset @ppos is + * advanced by this number, or negative value is returned on error. + **/ ssize_t simple_read_from_buffer(void __user *to, size_t count, loff_t *ppos, const void *from, size_t available) { @@ -528,6 +542,20 @@ ssize_t simple_read_from_buffer(void __user *to, size_t count, loff_t *ppos, return count; } +/** + * memory_read_from_buffer - copy data from the buffer + * @to: the kernel space buffer to read to + * @count: the maximum number of bytes to read + * @ppos: the current position in the buffer + * @from: the buffer to read from + * @available: the size of the buffer + * + * The memory_read_from_buffer() function reads up to @count bytes from the + * buffer @from at offset @ppos into the kernel space address starting at @to. + * + * On success, the number of bytes read is returned and the offset @ppos is + * advanced by this number, or negative value is returned on error. + **/ ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos, const void *from, size_t available) { diff --git a/fs/locks.c b/fs/locks.c index 11dbf08651b..dce8c747371 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -561,9 +561,6 @@ static void locks_insert_lock(struct file_lock **pos, struct file_lock *fl) /* insert into file's list */ fl->fl_next = *pos; *pos = fl; - - if (fl->fl_ops && fl->fl_ops->fl_insert) - fl->fl_ops->fl_insert(fl); } /* @@ -586,9 +583,6 @@ static void locks_delete_lock(struct file_lock **thisfl_p) fl->fl_fasync = NULL; } - if (fl->fl_ops && fl->fl_ops->fl_remove) - fl->fl_ops->fl_remove(fl); - if (fl->fl_nspid) { put_pid(fl->fl_nspid); fl->fl_nspid = NULL; diff --git a/fs/namei.c b/fs/namei.c index c7e43536c49..01e67dddcc3 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -581,15 +581,13 @@ static __always_inline int link_path_walk(const char *name, struct nameidata *nd int result; /* make sure the stuff we saved doesn't go away */ - dget(save.dentry); - mntget(save.mnt); + path_get(&save); result = __link_path_walk(name, nd); if (result == -ESTALE) { /* nd->path had been dropped */ nd->path = save; - dget(nd->path.dentry); - mntget(nd->path.mnt); + path_get(&nd->path); nd->flags |= LOOKUP_REVAL; result = __link_path_walk(name, nd); } @@ -1216,8 +1214,9 @@ int vfs_path_lookup(struct dentry *dentry, struct vfsmount *mnt, nd->flags = flags; nd->depth = 0; - nd->path.mnt = mntget(mnt); - nd->path.dentry = dget(dentry); + nd->path.dentry = dentry; + nd->path.mnt = mnt; + path_get(&nd->path); retval = path_walk(name, nd); if (unlikely(!retval && !audit_dummy_context() && nd->path.dentry && @@ -2857,16 +2856,17 @@ int generic_readlink(struct dentry *dentry, char __user *buffer, int buflen) { struct nameidata nd; void *cookie; + int res; nd.depth = 0; cookie = dentry->d_inode->i_op->follow_link(dentry, &nd); - if (!IS_ERR(cookie)) { - int res = vfs_readlink(dentry, buffer, buflen, nd_get_link(&nd)); - if (dentry->d_inode->i_op->put_link) - dentry->d_inode->i_op->put_link(dentry, &nd, cookie); - cookie = ERR_PTR(res); - } - return PTR_ERR(cookie); + if (IS_ERR(cookie)) + return PTR_ERR(cookie); + + res = vfs_readlink(dentry, buffer, buflen, nd_get_link(&nd)); + if (dentry->d_inode->i_op->put_link) + dentry->d_inode->i_op->put_link(dentry, &nd, cookie); + return res; } int vfs_follow_link(struct nameidata *nd, const char *link) diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 58d43daec08..982a2064fe4 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -204,7 +204,7 @@ int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page *page) * Note: assumes we have exclusive access to this mapping either * through inode->i_mutex or some other mechanism. */ - if (page->index == 0 && invalidate_inode_pages2_range(inode->i_mapping, PAGE_CACHE_SIZE, -1) < 0) { + if (invalidate_inode_pages2_range(inode->i_mapping, page->index + 1, -1) < 0) { /* Should never happen */ nfs_zap_mapping(inode, inode->i_mapping); } diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index efc015c6128..44f87caf368 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -606,7 +606,9 @@ static void dlm_init_lockres(struct dlm_ctxt *dlm, res->last_used = 0; + spin_lock(&dlm->spinlock); list_add_tail(&res->tracking, &dlm->tracking_list); + spin_unlock(&dlm->spinlock); memset(res->lvb, 0, DLM_LVB_LEN); memset(res->refmap, 0, sizeof(res->refmap)); diff --git a/fs/open.c b/fs/open.c index a1450086e92..a99ad09c319 100644 --- a/fs/open.c +++ b/fs/open.c @@ -16,6 +16,7 @@ #include <linux/namei.h> #include <linux/backing-dev.h> #include <linux/capability.h> +#include <linux/securebits.h> #include <linux/security.h> #include <linux/mount.h> #include <linux/vfs.h> @@ -425,7 +426,7 @@ asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode) { struct nameidata nd; int old_fsuid, old_fsgid; - kernel_cap_t old_cap; + kernel_cap_t uninitialized_var(old_cap); /* !SECURE_NO_SETUID_FIXUP */ int res; if (mode & ~S_IRWXO) /* where's F_OK, X_OK, W_OK, R_OK? */ @@ -433,23 +434,27 @@ asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode) old_fsuid = current->fsuid; old_fsgid = current->fsgid; - old_cap = current->cap_effective; current->fsuid = current->uid; current->fsgid = current->gid; - /* - * Clear the capabilities if we switch to a non-root user - * - * FIXME: There is a race here against sys_capset. The - * capabilities can change yet we will restore the old - * value below. We should hold task_capabilities_lock, - * but we cannot because user_path_walk can sleep. - */ - if (current->uid) - cap_clear(current->cap_effective); - else - current->cap_effective = current->cap_permitted; + if (!issecure(SECURE_NO_SETUID_FIXUP)) { + /* + * Clear the capabilities if we switch to a non-root user + */ +#ifndef CONFIG_SECURITY_FILE_CAPABILITIES + /* + * FIXME: There is a race here against sys_capset. The + * capabilities can change yet we will restore the old + * value below. We should hold task_capabilities_lock, + * but we cannot because user_path_walk can sleep. + */ +#endif /* ndef CONFIG_SECURITY_FILE_CAPABILITIES */ + if (current->uid) + old_cap = cap_set_effective(__cap_empty_set); + else + old_cap = cap_set_effective(current->cap_permitted); + } res = __user_walk_fd(dfd, filename, LOOKUP_FOLLOW|LOOKUP_ACCESS, &nd); if (res) @@ -478,7 +483,9 @@ out_path_release: out: current->fsuid = old_fsuid; current->fsgid = old_fsgid; - current->cap_effective = old_cap; + + if (!issecure(SECURE_NO_SETUID_FIXUP)) + cap_set_effective(old_cap); return res; } diff --git a/fs/pipe.c b/fs/pipe.c index ec228bc9f88..700f4e0d957 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -1003,8 +1003,7 @@ struct file *create_write_pipe(void) void free_write_pipe(struct file *f) { free_pipe_info(f->f_dentry->d_inode); - dput(f->f_path.dentry); - mntput(f->f_path.mnt); + path_put(&f->f_path); put_filp(f); } @@ -1015,8 +1014,8 @@ struct file *create_read_pipe(struct file *wrf) return ERR_PTR(-ENFILE); /* Grab pipe from the writer */ - f->f_path.mnt = mntget(wrf->f_path.mnt); - f->f_path.dentry = dget(wrf->f_path.dentry); + f->f_path = wrf->f_path; + path_get(&wrf->f_path); f->f_mapping = wrf->f_path.dentry->d_inode->i_mapping; f->f_pos = 0; @@ -1068,8 +1067,7 @@ int do_pipe(int *fd) err_fdr: put_unused_fd(fdr); err_read_pipe: - dput(fr->f_dentry); - mntput(fr->f_vfsmnt); + path_put(&fr->f_path); put_filp(fr); err_write_pipe: free_write_pipe(fw); diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index ab8ccc9d14f..c492449f3b4 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -476,10 +476,10 @@ static ssize_t clear_refs_write(struct file *file, const char __user *buf, return -ESRCH; mm = get_task_mm(task); if (mm) { - static struct mm_walk clear_refs_walk; - memset(&clear_refs_walk, 0, sizeof(clear_refs_walk)); - clear_refs_walk.pmd_entry = clear_refs_pte_range; - clear_refs_walk.mm = mm; + struct mm_walk clear_refs_walk = { + .pmd_entry = clear_refs_pte_range, + .mm = mm, + }; down_read(&mm->mmap_sem); for (vma = mm->mmap; vma; vma = vma->vm_next) { clear_refs_walk.private = vma; @@ -602,11 +602,6 @@ static int pagemap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end, return err; } -static struct mm_walk pagemap_walk = { - .pmd_entry = pagemap_pte_range, - .pte_hole = pagemap_pte_hole -}; - /* * /proc/pid/pagemap - an array mapping virtual pages to pfns * @@ -641,6 +636,11 @@ static ssize_t pagemap_read(struct file *file, char __user *buf, struct pagemapread pm; int pagecount; int ret = -ESRCH; + struct mm_walk pagemap_walk; + unsigned long src; + unsigned long svpfn; + unsigned long start_vaddr; + unsigned long end_vaddr; if (!task) goto out; @@ -659,11 +659,15 @@ static ssize_t pagemap_read(struct file *file, char __user *buf, if (!mm) goto out_task; - ret = -ENOMEM; + uaddr = (unsigned long)buf & PAGE_MASK; uend = (unsigned long)(buf + count); pagecount = (PAGE_ALIGN(uend) - uaddr) / PAGE_SIZE; - pages = kmalloc(pagecount * sizeof(struct page *), GFP_KERNEL); + ret = 0; + if (pagecount == 0) + goto out_mm; + pages = kcalloc(pagecount, sizeof(struct page *), GFP_KERNEL); + ret = -ENOMEM; if (!pages) goto out_mm; @@ -684,33 +688,33 @@ static ssize_t pagemap_read(struct file *file, char __user *buf, pm.out = (u64 *)buf; pm.end = (u64 *)(buf + count); - if (!ptrace_may_attach(task)) { - ret = -EIO; - } else { - unsigned long src = *ppos; - unsigned long svpfn = src / PM_ENTRY_BYTES; - unsigned long start_vaddr = svpfn << PAGE_SHIFT; - unsigned long end_vaddr = TASK_SIZE_OF(task); - - /* watch out for wraparound */ - if (svpfn > TASK_SIZE_OF(task) >> PAGE_SHIFT) - start_vaddr = end_vaddr; - - /* - * The odds are that this will stop walking way - * before end_vaddr, because the length of the - * user buffer is tracked in "pm", and the walk - * will stop when we hit the end of the buffer. - */ - ret = walk_page_range(start_vaddr, end_vaddr, - &pagemap_walk); - if (ret == PM_END_OF_BUFFER) - ret = 0; - /* don't need mmap_sem for these, but this looks cleaner */ - *ppos += (char *)pm.out - buf; - if (!ret) - ret = (char *)pm.out - buf; - } + pagemap_walk.pmd_entry = pagemap_pte_range; + pagemap_walk.pte_hole = pagemap_pte_hole; + pagemap_walk.mm = mm; + pagemap_walk.private = ± + + src = *ppos; + svpfn = src / PM_ENTRY_BYTES; + start_vaddr = svpfn << PAGE_SHIFT; + end_vaddr = TASK_SIZE_OF(task); + + /* watch out for wraparound */ + if (svpfn > TASK_SIZE_OF(task) >> PAGE_SHIFT) + start_vaddr = end_vaddr; + + /* + * The odds are that this will stop walking way + * before end_vaddr, because the length of the + * user buffer is tracked in "pm", and the walk + * will stop when we hit the end of the buffer. + */ + ret = walk_page_range(start_vaddr, end_vaddr, &pagemap_walk); + if (ret == PM_END_OF_BUFFER) + ret = 0; + /* don't need mmap_sem for these, but this looks cleaner */ + *ppos += (char *)pm.out - buf; + if (!ret) + ret = (char *)pm.out - buf; out_pages: for (; pagecount; pagecount--) { diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 57917932212..192269698a8 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -45,6 +45,8 @@ void reiserfs_delete_inode(struct inode *inode) goto out; reiserfs_update_inode_transaction(inode); + reiserfs_discard_prealloc(&th, inode); + err = reiserfs_delete_object(&th, inode); /* Do quota update inside a transaction for journaled quotas. We must do that diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index ed424d708e6..1d40f2bd197 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -2165,8 +2165,10 @@ static ssize_t reiserfs_quota_write(struct super_block *sb, int type, blk++; } out: - if (len == towrite) + if (len == towrite) { + mutex_unlock(&inode->i_mutex); return err; + } if (inode->i_size < off + len - towrite) i_size_write(inode, off + len - towrite); inode->i_version++; diff --git a/fs/udf/super.c b/fs/udf/super.c index 7a5f69be6ac..44cc702f96c 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -682,38 +682,26 @@ static int udf_vrs(struct super_block *sb, int silent) /* * Check whether there is an anchor block in the given block */ -static int udf_check_anchor_block(struct super_block *sb, sector_t block, - bool varconv) +static int udf_check_anchor_block(struct super_block *sb, sector_t block) { - struct buffer_head *bh = NULL; - tag *t; + struct buffer_head *bh; uint16_t ident; - uint32_t location; - if (varconv) { - if (udf_fixed_to_variable(block) >= - sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits) - return 0; - bh = sb_bread(sb, udf_fixed_to_variable(block)); - } - else - bh = sb_bread(sb, block); + if (UDF_QUERY_FLAG(sb, UDF_FLAG_VARCONV) && + udf_fixed_to_variable(block) >= + sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits) + return 0; + bh = udf_read_tagged(sb, block, block, &ident); if (!bh) return 0; - - t = (tag *)bh->b_data; - ident = le16_to_cpu(t->tagIdent); - location = le32_to_cpu(t->tagLocation); brelse(bh); - if (ident != TAG_IDENT_AVDP) - return 0; - return location == block; + + return ident == TAG_IDENT_AVDP; } /* Search for an anchor volume descriptor pointer */ -static sector_t udf_scan_anchors(struct super_block *sb, bool varconv, - sector_t lastblock) +static sector_t udf_scan_anchors(struct super_block *sb, sector_t lastblock) { sector_t last[6]; int i; @@ -739,7 +727,7 @@ static sector_t udf_scan_anchors(struct super_block *sb, bool varconv, sb->s_blocksize_bits) continue; - if (udf_check_anchor_block(sb, last[i], varconv)) { + if (udf_check_anchor_block(sb, last[i])) { sbi->s_anchor[0] = last[i]; sbi->s_anchor[1] = last[i] - 256; return last[i]; @@ -748,17 +736,17 @@ static sector_t udf_scan_anchors(struct super_block *sb, bool varconv, if (last[i] < 256) continue; - if (udf_check_anchor_block(sb, last[i] - 256, varconv)) { + if (udf_check_anchor_block(sb, last[i] - 256)) { sbi->s_anchor[1] = last[i] - 256; return last[i]; } } - if (udf_check_anchor_block(sb, sbi->s_session + 256, varconv)) { + if (udf_check_anchor_block(sb, sbi->s_session + 256)) { sbi->s_anchor[0] = sbi->s_session + 256; return last[0]; } - if (udf_check_anchor_block(sb, sbi->s_session + 512, varconv)) { + if (udf_check_anchor_block(sb, sbi->s_session + 512)) { sbi->s_anchor[0] = sbi->s_session + 512; return last[0]; } @@ -780,23 +768,24 @@ static void udf_find_anchor(struct super_block *sb) int i; struct udf_sb_info *sbi = UDF_SB(sb); - lastblock = udf_scan_anchors(sb, 0, sbi->s_last_block); + lastblock = udf_scan_anchors(sb, sbi->s_last_block); if (lastblock) goto check_anchor; /* No anchor found? Try VARCONV conversion of block numbers */ + UDF_SET_FLAG(sb, UDF_FLAG_VARCONV); /* Firstly, we try to not convert number of the last block */ - lastblock = udf_scan_anchors(sb, 1, + lastblock = udf_scan_anchors(sb, udf_variable_to_fixed(sbi->s_last_block)); - if (lastblock) { - UDF_SET_FLAG(sb, UDF_FLAG_VARCONV); + if (lastblock) goto check_anchor; - } /* Secondly, we try with converted number of the last block */ - lastblock = udf_scan_anchors(sb, 1, sbi->s_last_block); - if (lastblock) - UDF_SET_FLAG(sb, UDF_FLAG_VARCONV); + lastblock = udf_scan_anchors(sb, sbi->s_last_block); + if (!lastblock) { + /* VARCONV didn't help. Clear it. */ + UDF_CLEAR_FLAG(sb, UDF_FLAG_VARCONV); + } check_anchor: /* diff --git a/fs/utimes.c b/fs/utimes.c index af059d5cb48..b6b664e7145 100644 --- a/fs/utimes.c +++ b/fs/utimes.c @@ -40,14 +40,9 @@ asmlinkage long sys_utime(char __user *filename, struct utimbuf __user *times) #endif -static bool nsec_special(long nsec) -{ - return nsec == UTIME_OMIT || nsec == UTIME_NOW; -} - static bool nsec_valid(long nsec) { - if (nsec_special(nsec)) + if (nsec == UTIME_OMIT || nsec == UTIME_NOW) return true; return nsec >= 0 && nsec <= 999999999; @@ -102,7 +97,11 @@ long do_utimes(int dfd, char __user *filename, struct timespec *times, int flags if (error) goto dput_and_out; - /* Don't worry, the checks are done in inode_change_ok() */ + if (times && times[0].tv_nsec == UTIME_NOW && + times[1].tv_nsec == UTIME_NOW) + times = NULL; + + /* In most cases, the checks are done in inode_change_ok() */ newattrs.ia_valid = ATTR_CTIME | ATTR_MTIME | ATTR_ATIME; if (times) { error = -EPERM; @@ -124,28 +123,34 @@ long do_utimes(int dfd, char __user *filename, struct timespec *times, int flags newattrs.ia_mtime.tv_nsec = times[1].tv_nsec; newattrs.ia_valid |= ATTR_MTIME_SET; } - } - /* - * If times is NULL or both times are either UTIME_OMIT or - * UTIME_NOW, then need to check permissions, because - * inode_change_ok() won't do it. - */ - if (!times || (nsec_special(times[0].tv_nsec) && - nsec_special(times[1].tv_nsec))) { + /* + * For the UTIME_OMIT/UTIME_NOW and UTIME_NOW/UTIME_OMIT + * cases, we need to make an extra check that is not done by + * inode_change_ok(). + */ + if (((times[0].tv_nsec == UTIME_NOW && + times[1].tv_nsec == UTIME_OMIT) + || + (times[0].tv_nsec == UTIME_OMIT && + times[1].tv_nsec == UTIME_NOW)) + && !is_owner_or_cap(inode)) + goto mnt_drop_write_and_out; + } else { + + /* + * If times is NULL (or both times are UTIME_NOW), + * then we need to check permissions, because + * inode_change_ok() won't do it. + */ error = -EACCES; if (IS_IMMUTABLE(inode)) goto mnt_drop_write_and_out; if (!is_owner_or_cap(inode)) { - if (f) { - if (!(f->f_mode & FMODE_WRITE)) - goto mnt_drop_write_and_out; - } else { - error = vfs_permission(&nd, MAY_WRITE); - if (error) - goto mnt_drop_write_and_out; - } + error = permission(inode, MAY_WRITE, NULL); + if (error) + goto mnt_drop_write_and_out; } } mutex_lock(&inode->i_mutex); @@ -169,14 +174,6 @@ asmlinkage long sys_utimensat(int dfd, char __user *filename, struct timespec __ if (utimes) { if (copy_from_user(&tstimes, utimes, sizeof(tstimes))) return -EFAULT; - if ((tstimes[0].tv_nsec == UTIME_OMIT || - tstimes[0].tv_nsec == UTIME_NOW) && - tstimes[0].tv_sec != 0) - return -EINVAL; - if ((tstimes[1].tv_nsec == UTIME_OMIT || - tstimes[1].tv_nsec == UTIME_NOW) && - tstimes[1].tv_sec != 0) - return -EINVAL; /* Nothing to do, we must not even check the path. */ if (tstimes[0].tv_nsec == UTIME_OMIT && diff --git a/include/asm-generic/Kbuild.asm b/include/asm-generic/Kbuild.asm index 92a6d91d0c1..7cd25b8e7c9 100644 --- a/include/asm-generic/Kbuild.asm +++ b/include/asm-generic/Kbuild.asm @@ -1,6 +1,6 @@ header-y += kvm.h -ifeq ($(wildcard include/asm-$(SRCARCH)/a.out.h),include/asm-$(SRCARCH)/a.out.h) +ifneq ($(wildcard $(srctree)/include/asm-$(SRCARCH)/a.out.h),) unifdef-y += a.out.h endif unifdef-y += auxvec.h diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index 85fd0aa27a8..4ec0a296bde 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -2,7 +2,7 @@ #define _ASM_GENERIC_ATOMIC_H /* * Copyright (C) 2005 Silicon Graphics, Inc. - * Christoph Lameter <clameter@sgi.com> + * Christoph Lameter * * Allows to provide arch independent atomic definitions without the need to * edit all arch specific atomic.h files. diff --git a/include/asm-mips/atomic.h b/include/asm-mips/atomic.h index a798d6299a7..1232be3885b 100644 --- a/include/asm-mips/atomic.h +++ b/include/asm-mips/atomic.h @@ -283,10 +283,10 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v) " beqz %0, 2f \n" " subu %0, %1, %3 \n" " .set reorder \n" - "1: \n" " .subsection 2 \n" "2: b 1b \n" " .previous \n" + "1: \n" " .set mips0 \n" : "=&r" (result), "=&r" (temp), "=m" (v->counter) : "Ir" (i), "m" (v->counter) @@ -664,10 +664,10 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v) " beqz %0, 2f \n" " dsubu %0, %1, %3 \n" " .set reorder \n" - "1: \n" " .subsection 2 \n" "2: b 1b \n" " .previous \n" + "1: \n" " .set mips0 \n" : "=&r" (result), "=&r" (temp), "=m" (v->counter) : "Ir" (i), "m" (v->counter) diff --git a/include/asm-powerpc/Kbuild b/include/asm-powerpc/Kbuild index 7381916dfcb..bca352e033c 100644 --- a/include/asm-powerpc/Kbuild +++ b/include/asm-powerpc/Kbuild @@ -1,6 +1,5 @@ include include/asm-generic/Kbuild.asm -header-y += a.out.h header-y += auxvec.h header-y += ioctls.h header-y += mman.h diff --git a/include/asm-powerpc/hugetlb.h b/include/asm-powerpc/hugetlb.h index 649c6c3b87b..be32ff02f4a 100644 --- a/include/asm-powerpc/hugetlb.h +++ b/include/asm-powerpc/hugetlb.h @@ -49,12 +49,6 @@ static inline pte_t huge_pte_wrprotect(pte_t pte) return pte_wrprotect(pte); } -static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) -{ - ptep_set_wrprotect(mm, addr, ptep); -} - static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, pte_t pte, int dirty) diff --git a/include/asm-powerpc/pgtable-ppc64.h b/include/asm-powerpc/pgtable-ppc64.h index cc6a43ba41d..7686569a0be 100644 --- a/include/asm-powerpc/pgtable-ppc64.h +++ b/include/asm-powerpc/pgtable-ppc64.h @@ -314,6 +314,16 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, old = pte_update(mm, addr, ptep, _PAGE_RW, 0); } +static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, + unsigned long addr, pte_t *ptep) +{ + unsigned long old; + + if ((pte_val(*ptep) & _PAGE_RW) == 0) + return; + old = pte_update(mm, addr, ptep, _PAGE_RW, 1); +} + /* * We currently remove entries from the hashtable regardless of whether * the entry was young or dirty. The generic routines only flush if the diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h index c7f4f8e3e29..bd0ea191dfa 100644 --- a/include/asm-s390/pgtable.h +++ b/include/asm-s390/pgtable.h @@ -223,6 +223,9 @@ extern char empty_zero_page[PAGE_SIZE]; #define _PAGE_SPECIAL 0x004 /* SW associated with special page */ #define __HAVE_ARCH_PTE_SPECIAL +/* Set of bits not changed in pte_modify */ +#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_SPECIAL) + /* Six different types of pages. */ #define _PAGE_TYPE_EMPTY 0x400 #define _PAGE_TYPE_NONE 0x401 @@ -681,7 +684,7 @@ static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *pt */ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { - pte_val(pte) &= PAGE_MASK; + pte_val(pte) &= _PAGE_CHG_MASK; pte_val(pte) |= pgprot_val(newprot); return pte; } diff --git a/include/asm-x86/kvm_para.h b/include/asm-x86/kvm_para.h index bfd9900742b..76f392146da 100644 --- a/include/asm-x86/kvm_para.h +++ b/include/asm-x86/kvm_para.h @@ -71,7 +71,8 @@ static inline long kvm_hypercall0(unsigned int nr) long ret; asm volatile(KVM_HYPERCALL : "=a"(ret) - : "a"(nr)); + : "a"(nr) + : "memory"); return ret; } @@ -80,7 +81,8 @@ static inline long kvm_hypercall1(unsigned int nr, unsigned long p1) long ret; asm volatile(KVM_HYPERCALL : "=a"(ret) - : "a"(nr), "b"(p1)); + : "a"(nr), "b"(p1) + : "memory"); return ret; } @@ -90,7 +92,8 @@ static inline long kvm_hypercall2(unsigned int nr, unsigned long p1, long ret; asm volatile(KVM_HYPERCALL : "=a"(ret) - : "a"(nr), "b"(p1), "c"(p2)); + : "a"(nr), "b"(p1), "c"(p2) + : "memory"); return ret; } @@ -100,7 +103,8 @@ static inline long kvm_hypercall3(unsigned int nr, unsigned long p1, long ret; asm volatile(KVM_HYPERCALL : "=a"(ret) - : "a"(nr), "b"(p1), "c"(p2), "d"(p3)); + : "a"(nr), "b"(p1), "c"(p2), "d"(p3) + : "memory"); return ret; } @@ -111,7 +115,8 @@ static inline long kvm_hypercall4(unsigned int nr, unsigned long p1, long ret; asm volatile(KVM_HYPERCALL : "=a"(ret) - : "a"(nr), "b"(p1), "c"(p2), "d"(p3), "S"(p4)); + : "a"(nr), "b"(p1), "c"(p2), "d"(p3), "S"(p4) + : "memory"); return ret; } diff --git a/include/asm-x86/msr.h b/include/asm-x86/msr.h index 3707650a169..2b5f2c91db2 100644 --- a/include/asm-x86/msr.h +++ b/include/asm-x86/msr.h @@ -18,7 +18,7 @@ static inline unsigned long long native_read_tscp(unsigned int *aux) unsigned long low, high; asm volatile(".byte 0x0f,0x01,0xf9" : "=a" (low), "=d" (high), "=c" (*aux)); - return low | ((u64)high >> 32); + return low | ((u64)high << 32); } /* diff --git a/include/linux/Kbuild b/include/linux/Kbuild index b6fbb2573e8..71d70d1fbce 100644 --- a/include/linux/Kbuild +++ b/include/linux/Kbuild @@ -166,7 +166,7 @@ unifdef-y += acct.h unifdef-y += adb.h unifdef-y += adfs_fs.h unifdef-y += agpgart.h -ifeq ($(wildcard include/asm-$(SRCARCH)/a.out.h),include/asm-$(SRCARCH)/a.out.h) +ifneq ($(wildcard $(srctree)/include/asm-$(SRCARCH)/a.out.h),) unifdef-y += a.out.h endif unifdef-y += apm_bios.h diff --git a/include/linux/audit.h b/include/linux/audit.h index 63c3bb98558..8b82974bdc1 100644 --- a/include/linux/audit.h +++ b/include/linux/audit.h @@ -571,7 +571,7 @@ extern void audit_log_lost(const char *message); extern int audit_update_lsm_rules(void); /* Private API (for audit.c only) */ -extern int audit_filter_user(struct netlink_skb_parms *cb, int type); +extern int audit_filter_user(struct netlink_skb_parms *cb); extern int audit_filter_type(int type); extern int audit_receive_filter(int type, int pid, int uid, int seq, void *data, size_t datasz, uid_t loginuid, diff --git a/include/linux/capability.h b/include/linux/capability.h index fa830f8de03..02673846d20 100644 --- a/include/linux/capability.h +++ b/include/linux/capability.h @@ -501,6 +501,8 @@ extern const kernel_cap_t __cap_empty_set; extern const kernel_cap_t __cap_full_set; extern const kernel_cap_t __cap_init_eff_set; +kernel_cap_t cap_set_effective(const kernel_cap_t pE_new); + int capable(int cap); int __capable(struct task_struct *t, int cap); diff --git a/include/linux/cfag12864b.h b/include/linux/cfag12864b.h index 1605dd8aa64..6f9f19d6659 100644 --- a/include/linux/cfag12864b.h +++ b/include/linux/cfag12864b.h @@ -4,7 +4,7 @@ * Description: cfag12864b LCD driver header * License: GPLv2 * - * Author: Copyright (C) Miguel Ojeda Sandonis <maxextreme@gmail.com> + * Author: Copyright (C) Miguel Ojeda Sandonis * Date: 2006-10-12 * * This program is free software; you can redistribute it and/or modify diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 5df3db58fcc..c24875bd9c5 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -353,6 +353,10 @@ static inline void __cpus_fold(cpumask_t *dstp, const cpumask_t *origp, for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask) #endif /* NR_CPUS */ +#define next_cpu_nr(n, src) next_cpu(n, src) +#define cpus_weight_nr(cpumask) cpus_weight(cpumask) +#define for_each_cpu_mask_nr(cpu, mask) for_each_cpu_mask(cpu, mask) + /* * The following particular system cpumasks and operations manage * possible, present and online cpus. Each of them is a fixed size diff --git a/include/linux/dcache.h b/include/linux/dcache.h index 2a6639407c8..d982eb89c77 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -300,7 +300,7 @@ extern int d_validate(struct dentry *, struct dentry *); extern char *dynamic_dname(struct dentry *, char *, int, const char *, ...); extern char *__d_path(const struct path *path, struct path *root, char *, int); -extern char *d_path(struct path *, char *, int); +extern char *d_path(const struct path *, char *, int); extern char *dentry_path(struct dentry *, char *, int); /* Allocation counts.. */ diff --git a/include/linux/debug_locks.h b/include/linux/debug_locks.h index f4a5871767f..4aaa4afb1cb 100644 --- a/include/linux/debug_locks.h +++ b/include/linux/debug_locks.h @@ -1,6 +1,8 @@ #ifndef __LINUX_DEBUG_LOCKING_H #define __LINUX_DEBUG_LOCKING_H +#include <linux/kernel.h> + struct task_struct; extern int debug_locks; @@ -11,14 +13,6 @@ extern int debug_locks_silent; */ extern int debug_locks_off(void); -/* - * In the debug case we carry the caller's instruction pointer into - * other functions, but we dont want the function argument overhead - * in the nondebug case - hence these macros: - */ -#define _RET_IP_ (unsigned long)__builtin_return_address(0) -#define _THIS_IP_ ({ __label__ __here; __here: (unsigned long)&&__here; }) - #define DEBUG_LOCKS_WARN_ON(c) \ ({ \ int __ret = 0; \ diff --git a/include/linux/firmware.h b/include/linux/firmware.h index 4d10c7328d2..6c7eff2ebad 100644 --- a/include/linux/firmware.h +++ b/include/linux/firmware.h @@ -13,7 +13,7 @@ struct firmware { struct device; -#if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE) +#if defined(CONFIG_FW_LOADER) || (defined(CONFIG_FW_LOADER_MODULE) && defined(MODULE)) int request_firmware(const struct firmware **fw, const char *name, struct device *device); int request_firmware_nowait( diff --git a/include/linux/fs.h b/include/linux/fs.h index d490779f18d..d8e2762ed14 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -83,6 +83,7 @@ extern int dir_notify_enable; #define READ_SYNC (READ | (1 << BIO_RW_SYNC)) #define READ_META (READ | (1 << BIO_RW_META)) #define WRITE_SYNC (WRITE | (1 << BIO_RW_SYNC)) +#define SWRITE_SYNC (SWRITE | (1 << BIO_RW_SYNC)) #define WRITE_BARRIER ((1 << BIO_RW) | (1 << BIO_RW_BARRIER)) #define SEL_IN 1 @@ -894,8 +895,6 @@ static inline int file_check_writeable(struct file *filp) typedef struct files_struct *fl_owner_t; struct file_lock_operations { - void (*fl_insert)(struct file_lock *); /* lock insertion callback */ - void (*fl_remove)(struct file_lock *); /* lock removal callback */ void (*fl_copy_lock)(struct file_lock *, struct file_lock *); void (*fl_release_private)(struct file_lock *); }; diff --git a/include/linux/i2c.h b/include/linux/i2c.h index fb9af6a0fe9..8dc73013219 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -171,7 +171,7 @@ struct i2c_client { struct i2c_adapter *adapter; /* the adapter we sit on */ struct i2c_driver *driver; /* and our access routines */ struct device dev; /* the device structure */ - int irq; /* irq issued by device (or -1) */ + int irq; /* irq issued by device */ struct list_head list; /* DEPRECATED */ struct completion released; }; diff --git a/include/linux/ide.h b/include/linux/ide.h index 9918772bf27..eddb6daadf4 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -189,6 +189,21 @@ static inline void ide_std_init_ports(hw_regs_t *hw, hw->io_ports.ctl_addr = ctl_addr; } +/* for IDE PCI controllers in legacy mode, temporary */ +static inline int __ide_default_irq(unsigned long base) +{ + switch (base) { +#ifdef CONFIG_IA64 + case 0x1f0: return isa_irq_to_vector(14); + case 0x170: return isa_irq_to_vector(15); +#else + case 0x1f0: return 14; + case 0x170: return 15; +#endif + } + return 0; +} + #include <asm/ide.h> #if !defined(MAX_HWIFS) || defined(CONFIG_EMBEDDED) diff --git a/include/linux/inet_lro.h b/include/linux/inet_lro.h index 80335b7d77c..c4335faebb6 100644 --- a/include/linux/inet_lro.h +++ b/include/linux/inet_lro.h @@ -84,7 +84,11 @@ struct net_lro_mgr { from received packets and eth protocol is still ETH_P_8021Q */ - u32 ip_summed; /* Set in non generated SKBs in page mode */ + /* + * Set for generated SKBs that are not added to + * the frag list in fragmented mode + */ + u32 ip_summed; u32 ip_summed_aggr; /* Set in aggregated SKBs: CHECKSUM_UNNECESSARY * or CHECKSUM_NONE */ diff --git a/include/linux/input.h b/include/linux/input.h index e075c4b762f..d150c57e5f0 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -534,8 +534,8 @@ struct input_absinfo { #define KEY_FRAMEBACK 0x1b4 /* Consumer - transport controls */ #define KEY_FRAMEFORWARD 0x1b5 - #define KEY_CONTEXT_MENU 0x1b6 /* GenDesc - system context menu */ +#define KEY_MEDIA_REPEAT 0x1b7 /* Consumer - transport control */ #define KEY_DEL_EOL 0x1c0 #define KEY_DEL_EOS 0x1c1 diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 792bf0aa779..2e70006c7fa 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -46,6 +46,9 @@ extern const char linux_proc_banner[]; #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) #define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y)) +#define _RET_IP_ (unsigned long)__builtin_return_address(0) +#define _THIS_IP_ ({ __label__ __here; __here: (unsigned long)&&__here; }) + #ifdef CONFIG_LBD # include <asm/div64.h> # define sector_div(a, b) do_div(a, b) diff --git a/include/linux/ks0108.h b/include/linux/ks0108.h index a2c54acceb4..cb311798e0b 100644 --- a/include/linux/ks0108.h +++ b/include/linux/ks0108.h @@ -4,7 +4,7 @@ * Description: ks0108 LCD Controller driver header * License: GPLv2 * - * Author: Copyright (C) Miguel Ojeda Sandonis <maxextreme@gmail.com> + * Author: Copyright (C) Miguel Ojeda Sandonis * Date: 2006-10-31 * * This program is free software; you can redistribute it and/or modify diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index f27fd200933..25f87102ab6 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -88,6 +88,8 @@ struct wireless_dev; #define NETDEV_TX_BUSY 1 /* driver tx path was busy*/ #define NETDEV_TX_LOCKED -1 /* driver tx lock was already taken */ +#ifdef __KERNEL__ + /* * Compute the worst case header length according to the protocols * used. @@ -114,6 +116,8 @@ struct wireless_dev; #define MAX_HEADER (LL_MAX_HEADER + 48) #endif +#endif /* __KERNEL__ */ + struct net_device_subqueue { /* Give a control state for each queue. This struct may contain diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index eafc9d6d2b3..65953822c9c 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -1520,6 +1520,7 @@ #define PCI_DEVICE_ID_MARVELL_GT64260 0x6430 #define PCI_DEVICE_ID_MARVELL_MV64360 0x6460 #define PCI_DEVICE_ID_MARVELL_MV64460 0x6480 +#define PCI_DEVICE_ID_MARVELL_CAFE_SD 0x4101 #define PCI_VENDOR_ID_V3 0x11b0 #define PCI_DEVICE_ID_V3_V960 0x0001 diff --git a/include/linux/rculist.h b/include/linux/rculist.h new file mode 100644 index 00000000000..bde4586f438 --- /dev/null +++ b/include/linux/rculist.h @@ -0,0 +1,6 @@ +#ifndef _LINUX_RCULIST_H +#define _LINUX_RCULIST_H + +#include <linux/list.h> + +#endif /* _LINUX_RCULIST_H */ diff --git a/include/linux/securebits.h b/include/linux/securebits.h index c1f19dbceb0..92f09bdf117 100644 --- a/include/linux/securebits.h +++ b/include/linux/securebits.h @@ -7,14 +7,15 @@ inheritance of root-permissions and suid-root executable under compatibility mode. We raise the effective and inheritable bitmasks *of the executable file* if the effective uid of the new process is - 0. If the real uid is 0, we raise the inheritable bitmask of the + 0. If the real uid is 0, we raise the effective (legacy) bit of the executable file. */ #define SECURE_NOROOT 0 #define SECURE_NOROOT_LOCKED 1 /* make bit-0 immutable */ -/* When set, setuid to/from uid 0 does not trigger capability-"fixes" - to be compatible with old programs relying on set*uid to loose - privileges. When unset, setuid doesn't change privileges. */ +/* When set, setuid to/from uid 0 does not trigger capability-"fixup". + When unset, to provide compatiblility with old programs relying on + set*uid to gain/lose privilege, transitions to/from uid 0 cause + capabilities to be gained/lost. */ #define SECURE_NO_SETUID_FIXUP 2 #define SECURE_NO_SETUID_FIXUP_LOCKED 3 /* make bit-2 immutable */ @@ -26,10 +27,10 @@ #define SECURE_KEEP_CAPS 4 #define SECURE_KEEP_CAPS_LOCKED 5 /* make bit-4 immutable */ -/* Each securesetting is implemented using two bits. One bit specify +/* Each securesetting is implemented using two bits. One bit specifies whether the setting is on or off. The other bit specify whether the - setting is fixed or not. A setting which is fixed cannot be changed - from user-level. */ + setting is locked or not. A setting which is locked cannot be + changed from user-level. */ #define issecure_mask(X) (1 << (X)) #define issecure(X) (issecure_mask(X) & current->securebits) diff --git a/include/linux/slab.h b/include/linux/slab.h index c2ad3501659..9aa90a6f20e 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -1,7 +1,7 @@ /* * Written by Mark Hemment, 1996 (markhe@nextd.demon.co.uk). * - * (C) SGI 2006, Christoph Lameter <clameter@sgi.com> + * (C) SGI 2006, Christoph Lameter * Cleaned up and restructured to ease the addition of alternative * implementations of SLAB allocators. */ diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h index 71e43a12ebb..d117ea2825a 100644 --- a/include/linux/slub_def.h +++ b/include/linux/slub_def.h @@ -4,7 +4,7 @@ /* * SLUB : A Slab allocator without object queues. * - * (C) 2007 SGI, Christoph Lameter <clameter@sgi.com> + * (C) 2007 SGI, Christoph Lameter */ #include <linux/types.h> #include <linux/gfp.h> @@ -137,10 +137,12 @@ static __always_inline int kmalloc_index(size_t size) if (size <= KMALLOC_MIN_SIZE) return KMALLOC_SHIFT_LOW; +#if KMALLOC_MIN_SIZE <= 64 if (size > 64 && size <= 96) return 1; if (size > 128 && size <= 192) return 2; +#endif if (size <= 8) return 3; if (size <= 16) return 4; if (size <= 32) return 5; diff --git a/include/linux/thermal.h b/include/linux/thermal.h index 06d3e6eb9ca..917707e6151 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -66,8 +66,7 @@ struct thermal_cooling_device { ((long)t-2732+5)/10 : ((long)t-2732-5)/10) #define CELSIUS_TO_KELVIN(t) ((t)*10+2732) -#if defined(CONFIG_HWMON) || \ - (defined(CONFIG_HWMON_MODULE) && defined(CONFIG_THERMAL_MODULE)) +#if defined(CONFIG_THERMAL_HWMON) /* thermal zone devices with the same type share one hwmon device */ struct thermal_hwmon_device { char type[THERMAL_NAME_LENGTH]; @@ -94,8 +93,7 @@ struct thermal_zone_device { struct idr idr; struct mutex lock; /* protect cooling devices list */ struct list_head node; -#if defined(CONFIG_HWMON) || \ - (defined(CONFIG_HWMON_MODULE) && defined(CONFIG_THERMAL_MODULE)) +#if defined(CONFIG_THERMAL_HWMON) struct list_head hwmon_node; struct thermal_hwmon_device *hwmon; struct thermal_hwmon_attr temp_input; /* hwmon sys attr */ diff --git a/include/media/cx25840.h b/include/media/cx25840.h index cd599ad29fb..db431d513f2 100644 --- a/include/media/cx25840.h +++ b/include/media/cx25840.h @@ -32,12 +32,16 @@ enum cx25840_video_input { CX25840_COMPOSITE7, CX25840_COMPOSITE8, - /* S-Video inputs consist of one luma input (In1-In4) ORed with one + /* S-Video inputs consist of one luma input (In1-In8) ORed with one chroma input (In5-In8) */ CX25840_SVIDEO_LUMA1 = 0x10, CX25840_SVIDEO_LUMA2 = 0x20, CX25840_SVIDEO_LUMA3 = 0x30, CX25840_SVIDEO_LUMA4 = 0x40, + CX25840_SVIDEO_LUMA5 = 0x50, + CX25840_SVIDEO_LUMA6 = 0x60, + CX25840_SVIDEO_LUMA7 = 0x70, + CX25840_SVIDEO_LUMA8 = 0x80, CX25840_SVIDEO_CHROMA4 = 0x400, CX25840_SVIDEO_CHROMA5 = 0x500, CX25840_SVIDEO_CHROMA6 = 0x600, diff --git a/include/media/ir-common.h b/include/media/ir-common.h index bfee8be5d63..b8e8aa91905 100644 --- a/include/media/ir-common.h +++ b/include/media/ir-common.h @@ -146,6 +146,7 @@ extern IR_KEYTAB_TYPE ir_codes_behold_columbus[IR_KEYTAB_SIZE]; extern IR_KEYTAB_TYPE ir_codes_pinnacle_pctv_hd[IR_KEYTAB_SIZE]; extern IR_KEYTAB_TYPE ir_codes_genius_tvgo_a11mce[IR_KEYTAB_SIZE]; extern IR_KEYTAB_TYPE ir_codes_powercolor_real_angel[IR_KEYTAB_SIZE]; +extern IR_KEYTAB_TYPE ir_codes_avermedia_a16d[IR_KEYTAB_SIZE]; #endif diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index 33f01ae08f7..859f7a6f6f6 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h @@ -40,9 +40,9 @@ #define VFL_TYPE_VTX 3 /* Video standard functions */ -extern char *v4l2_norm_to_name(v4l2_std_id id); +extern const char *v4l2_norm_to_name(v4l2_std_id id); extern int v4l2_video_std_construct(struct v4l2_standard *vs, - int id, char *name); + int id, const char *name); /* Prints the ioctl in a human-readable format */ extern void v4l_printk_ioctl(unsigned int cmd); diff --git a/include/net/mac80211.h b/include/net/mac80211.h index dae3f9ec115..bcd1623245c 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -595,6 +595,15 @@ enum ieee80211_key_alg { ALG_CCMP, }; +/** + * enum ieee80211_key_len - key length + * @WEP40: WEP 5 byte long key + * @WEP104: WEP 13 byte long key + */ +enum ieee80211_key_len { + LEN_WEP40 = 5, + LEN_WEP104 = 13, +}; /** * enum ieee80211_key_flags - key flags diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h index ab502ec1c61..a87fc0312ed 100644 --- a/include/net/sch_generic.h +++ b/include/net/sch_generic.h @@ -178,7 +178,7 @@ extern struct Qdisc *qdisc_alloc(struct net_device *dev, struct Qdisc_ops *ops); extern struct Qdisc *qdisc_create_dflt(struct net_device *dev, struct Qdisc_ops *ops, u32 parentid); extern void tcf_destroy(struct tcf_proto *tp); -extern void tcf_destroy_chain(struct tcf_proto *fl); +extern void tcf_destroy_chain(struct tcf_proto **fl); static inline int __qdisc_enqueue_tail(struct sk_buff *skb, struct Qdisc *sch, struct sk_buff_head *list) diff --git a/kernel/audit.c b/kernel/audit.c index e8692a5748c..e092f1c0ce3 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -738,7 +738,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh) if (!audit_enabled && msg_type != AUDIT_USER_AVC) return 0; - err = audit_filter_user(&NETLINK_CB(skb), msg_type); + err = audit_filter_user(&NETLINK_CB(skb)); if (err == 1) { err = 0; if (msg_type == AUDIT_USER_TTY) { @@ -779,7 +779,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh) } /* fallthrough */ case AUDIT_LIST: - err = audit_receive_filter(nlh->nlmsg_type, NETLINK_CB(skb).pid, + err = audit_receive_filter(msg_type, NETLINK_CB(skb).pid, uid, seq, data, nlmsg_len(nlh), loginuid, sessionid, sid); break; @@ -798,7 +798,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh) } /* fallthrough */ case AUDIT_LIST_RULES: - err = audit_receive_filter(nlh->nlmsg_type, NETLINK_CB(skb).pid, + err = audit_receive_filter(msg_type, NETLINK_CB(skb).pid, uid, seq, data, nlmsg_len(nlh), loginuid, sessionid, sid); break; diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c index 0e0bd27e651..98c50cc671b 100644 --- a/kernel/auditfilter.c +++ b/kernel/auditfilter.c @@ -1544,6 +1544,7 @@ static void audit_log_rule_change(uid_t loginuid, u32 sessionid, u32 sid, * @data: payload data * @datasz: size of payload data * @loginuid: loginuid of sender + * @sessionid: sessionid for netlink audit message * @sid: SE Linux Security ID of sender */ int audit_receive_filter(int type, int pid, int uid, int seq, void *data, @@ -1720,7 +1721,7 @@ static int audit_filter_user_rules(struct netlink_skb_parms *cb, return 1; } -int audit_filter_user(struct netlink_skb_parms *cb, int type) +int audit_filter_user(struct netlink_skb_parms *cb) { enum audit_state state = AUDIT_DISABLED; struct audit_entry *e; diff --git a/kernel/capability.c b/kernel/capability.c index cfbe4429948..901e0fdc3ff 100644 --- a/kernel/capability.c +++ b/kernel/capability.c @@ -121,6 +121,27 @@ static int cap_validate_magic(cap_user_header_t header, unsigned *tocopy) * uninteresting and/or not to be changed. */ +/* + * Atomically modify the effective capabilities returning the original + * value. No permission check is performed here - it is assumed that the + * caller is permitted to set the desired effective capabilities. + */ +kernel_cap_t cap_set_effective(const kernel_cap_t pE_new) +{ + kernel_cap_t pE_old; + + spin_lock(&task_capability_lock); + + pE_old = current->cap_effective; + current->cap_effective = pE_new; + + spin_unlock(&task_capability_lock); + + return pE_old; +} + +EXPORT_SYMBOL(cap_set_effective); + /** * sys_capget - get the capabilities of a given process. * @header: pointer to struct that contains capability version and diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index 421be5fe5cc..ab80515008f 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -1003,10 +1003,18 @@ hrtimer_start(struct hrtimer *timer, ktime_t tim, const enum hrtimer_mode mode) */ raise = timer->state == HRTIMER_STATE_PENDING; + /* + * We use preempt_disable to prevent this task from migrating after + * setting up the softirq and raising it. Otherwise, if me migrate + * we will raise the softirq on the wrong CPU. + */ + preempt_disable(); + unlock_hrtimer_base(timer, &flags); if (raise) hrtimer_raise_softirq(); + preempt_enable(); return ret; } diff --git a/kernel/kprobes.c b/kernel/kprobes.c index d4998f81e22..1485ca8d0e0 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -79,7 +79,7 @@ static DEFINE_PER_CPU(struct kprobe *, kprobe_instance) = NULL; * * For such cases, we now have a blacklist */ -struct kprobe_blackpoint kprobe_blacklist[] = { +static struct kprobe_blackpoint kprobe_blacklist[] = { {"preempt_schedule",}, {NULL} /* Terminator */ }; diff --git a/kernel/printk.c b/kernel/printk.c index 8fb01c32aa3..e2129e83fd7 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -666,7 +666,7 @@ static int acquire_console_semaphore_for_printk(unsigned int cpu) return retval; } -const char printk_recursion_bug_msg [] = +static const char printk_recursion_bug_msg [] = KERN_CRIT "BUG: recent printk recursion!\n"; static int printk_recursion_bug; diff --git a/kernel/rcuclassic.c b/kernel/rcuclassic.c index f4ffbd0f306..a38895a5b8e 100644 --- a/kernel/rcuclassic.c +++ b/kernel/rcuclassic.c @@ -89,8 +89,22 @@ static void force_quiescent_state(struct rcu_data *rdp, /* * Don't send IPI to itself. With irqs disabled, * rdp->cpu is the current cpu. + * + * cpu_online_map is updated by the _cpu_down() + * using stop_machine_run(). Since we're in irqs disabled + * section, stop_machine_run() is not exectuting, hence + * the cpu_online_map is stable. + * + * However, a cpu might have been offlined _just_ before + * we disabled irqs while entering here. + * And rcu subsystem might not yet have handled the CPU_DEAD + * notification, leading to the offlined cpu's bit + * being set in the rcp->cpumask. + * + * Hence cpumask = (rcp->cpumask & cpu_online_map) to prevent + * sending smp_reschedule() to an offlined CPU. */ - cpumask = rcp->cpumask; + cpus_and(cpumask, rcp->cpumask, cpu_online_map); cpu_clear(rdp->cpu, cpumask); for_each_cpu_mask(cpu, cpumask) smp_send_reschedule(cpu); diff --git a/kernel/rcupreempt.c b/kernel/rcupreempt.c index 5e02b774070..41d275a81df 100644 --- a/kernel/rcupreempt.c +++ b/kernel/rcupreempt.c @@ -925,26 +925,22 @@ void rcu_offline_cpu(int cpu) spin_unlock_irqrestore(&rdp->lock, flags); } -void __devinit rcu_online_cpu(int cpu) -{ - unsigned long flags; - - spin_lock_irqsave(&rcu_ctrlblk.fliplock, flags); - cpu_set(cpu, rcu_cpu_online_map); - spin_unlock_irqrestore(&rcu_ctrlblk.fliplock, flags); -} - #else /* #ifdef CONFIG_HOTPLUG_CPU */ void rcu_offline_cpu(int cpu) { } -void __devinit rcu_online_cpu(int cpu) +#endif /* #else #ifdef CONFIG_HOTPLUG_CPU */ + +void __cpuinit rcu_online_cpu(int cpu) { -} + unsigned long flags; -#endif /* #else #ifdef CONFIG_HOTPLUG_CPU */ + spin_lock_irqsave(&rcu_ctrlblk.fliplock, flags); + cpu_set(cpu, rcu_cpu_online_map); + spin_unlock_irqrestore(&rcu_ctrlblk.fliplock, flags); +} static void rcu_process_callbacks(struct softirq_action *unused) { diff --git a/kernel/softlockup.c b/kernel/softlockup.c index c828c2339cc..a272d78185e 100644 --- a/kernel/softlockup.c +++ b/kernel/softlockup.c @@ -120,6 +120,7 @@ void softlockup_tick(void) printk(KERN_ERR "BUG: soft lockup - CPU#%d stuck for %lus! [%s:%d]\n", this_cpu, now - touch_timestamp, current->comm, task_pid_nr(current)); + print_modules(); if (regs) show_regs(regs); else diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 29fc39f1029..ce7799540c9 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -13,7 +13,7 @@ * Kai Petzke <wpp@marie.physik.tu-berlin.de> * Theodore Ts'o <tytso@mit.edu> * - * Made to use alloc_percpu by Christoph Lameter <clameter@sgi.com>. + * Made to use alloc_percpu by Christoph Lameter. */ #include <linux/module.h> diff --git a/lib/bug.c b/lib/bug.c index 530f38f5578..bfeafd60ee9 100644 --- a/lib/bug.c +++ b/lib/bug.c @@ -37,6 +37,7 @@ */ #include <linux/list.h> #include <linux/module.h> +#include <linux/kernel.h> #include <linux/bug.h> #include <linux/sched.h> @@ -149,6 +150,7 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs) (void *)bugaddr); show_regs(regs); + add_taint(TAINT_WARN); return BUG_TRAP_TYPE_WARN; } diff --git a/lib/debugobjects.c b/lib/debugobjects.c index a76a5e122ae..85b18d79be8 100644 --- a/lib/debugobjects.c +++ b/lib/debugobjects.c @@ -68,6 +68,7 @@ static int fill_pool(void) { gfp_t gfp = GFP_ATOMIC | __GFP_NORETRY | __GFP_NOWARN; struct debug_obj *new; + unsigned long flags; if (likely(obj_pool_free >= ODEBUG_POOL_MIN_LEVEL)) return obj_pool_free; @@ -81,10 +82,10 @@ static int fill_pool(void) if (!new) return obj_pool_free; - spin_lock(&pool_lock); + spin_lock_irqsave(&pool_lock, flags); hlist_add_head(&new->node, &obj_pool); obj_pool_free++; - spin_unlock(&pool_lock); + spin_unlock_irqrestore(&pool_lock, flags); } return obj_pool_free; } @@ -110,16 +111,13 @@ static struct debug_obj *lookup_object(void *addr, struct debug_bucket *b) } /* - * Allocate a new object. If the pool is empty and no refill possible, - * switch off the debugger. + * Allocate a new object. If the pool is empty, switch off the debugger. */ static struct debug_obj * alloc_object(void *addr, struct debug_bucket *b, struct debug_obj_descr *descr) { struct debug_obj *obj = NULL; - int retry = 0; -repeat: spin_lock(&pool_lock); if (obj_pool.first) { obj = hlist_entry(obj_pool.first, typeof(*obj), node); @@ -141,9 +139,6 @@ repeat: } spin_unlock(&pool_lock); - if (fill_pool() && !obj && !retry++) - goto repeat; - return obj; } @@ -261,6 +256,8 @@ __debug_object_init(void *addr, struct debug_obj_descr *descr, int onstack) struct debug_obj *obj; unsigned long flags; + fill_pool(); + db = get_bucket((unsigned long) addr); spin_lock_irqsave(&db->lock, flags); diff --git a/lib/radix-tree.c b/lib/radix-tree.c index 169a2f8dabc..56ec21a7f73 100644 --- a/lib/radix-tree.c +++ b/lib/radix-tree.c @@ -1,7 +1,7 @@ /* * Copyright (C) 2001 Momchil Velikov * Portions Copyright (C) 2001 Christoph Hellwig - * Copyright (C) 2005 SGI, Christoph Lameter <clameter@sgi.com> + * Copyright (C) 2005 SGI, Christoph Lameter * Copyright (C) 2006 Nick Piggin * * This program is free software; you can redistribute it and/or diff --git a/lib/ts_bm.c b/lib/ts_bm.c index d90822c378a..4a7fce72898 100644 --- a/lib/ts_bm.c +++ b/lib/ts_bm.c @@ -63,7 +63,7 @@ static unsigned int bm_find(struct ts_config *conf, struct ts_state *state) struct ts_bm *bm = ts_config_priv(conf); unsigned int i, text_len, consumed = state->offset; const u8 *text; - int shift = bm->patlen, bs; + int shift = bm->patlen - 1, bs; for (;;) { text_len = conf->get_next_block(consumed, &text, conf, state); diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 6021757a449..1dc2d1d18fa 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -22,6 +22,8 @@ #include <linux/string.h> #include <linux/ctype.h> #include <linux/kernel.h> +#include <linux/kallsyms.h> +#include <linux/uaccess.h> #include <asm/page.h> /* for PAGE_SIZE */ #include <asm/div64.h> @@ -482,6 +484,89 @@ static char *number(char *buf, char *end, unsigned long long num, int base, int return buf; } +static char *string(char *buf, char *end, char *s, int field_width, int precision, int flags) +{ + int len, i; + + if ((unsigned long)s < PAGE_SIZE) + s = "<NULL>"; + + len = strnlen(s, precision); + + if (!(flags & LEFT)) { + while (len < field_width--) { + if (buf < end) + *buf = ' '; + ++buf; + } + } + for (i = 0; i < len; ++i) { + if (buf < end) + *buf = *s; + ++buf; ++s; + } + while (len < field_width--) { + if (buf < end) + *buf = ' '; + ++buf; + } + return buf; +} + +static inline void *dereference_function_descriptor(void *ptr) +{ +#if defined(CONFIG_IA64) || defined(CONFIG_PPC64) + void *p; + if (!probe_kernel_address(ptr, p)) + ptr = p; +#endif + return ptr; +} + +static char *symbol_string(char *buf, char *end, void *ptr, int field_width, int precision, int flags) +{ + unsigned long value = (unsigned long) ptr; +#ifdef CONFIG_KALLSYMS + char sym[KSYM_SYMBOL_LEN]; + sprint_symbol(sym, value); + return string(buf, end, sym, field_width, precision, flags); +#else + field_width = 2*sizeof(void *); + flags |= SPECIAL | SMALL | ZEROPAD; + return number(buf, end, value, 16, field_width, precision, flags); +#endif +} + +/* + * Show a '%p' thing. A kernel extension is that the '%p' is followed + * by an extra set of alphanumeric characters that are extended format + * specifiers. + * + * Right now we just handle 'F' (for symbolic Function descriptor pointers) + * and 'S' (for Symbolic direct pointers), but this can easily be + * extended in the future (network address types etc). + * + * The difference between 'S' and 'F' is that on ia64 and ppc64 function + * pointers are really function descriptors, which contain a pointer the + * real address. + */ +static char *pointer(const char *fmt, char *buf, char *end, void *ptr, int field_width, int precision, int flags) +{ + switch (*fmt) { + case 'F': + ptr = dereference_function_descriptor(ptr); + /* Fallthrough */ + case 'S': + return symbol_string(buf, end, ptr, field_width, precision, flags); + } + flags |= SMALL; + if (field_width == -1) { + field_width = 2*sizeof(void *); + flags |= ZEROPAD; + } + return number(buf, end, (unsigned long) ptr, 16, field_width, precision, flags); +} + /** * vsnprintf - Format a string and place it in a buffer * @buf: The buffer to place the result into @@ -502,11 +587,9 @@ static char *number(char *buf, char *end, unsigned long long num, int base, int */ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args) { - int len; unsigned long long num; - int i, base; + int base; char *str, *end, c; - const char *s; int flags; /* flags to number() */ @@ -622,43 +705,18 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args) continue; case 's': - s = va_arg(args, char *); - if ((unsigned long)s < PAGE_SIZE) - s = "<NULL>"; - - len = strnlen(s, precision); - - if (!(flags & LEFT)) { - while (len < field_width--) { - if (str < end) - *str = ' '; - ++str; - } - } - for (i = 0; i < len; ++i) { - if (str < end) - *str = *s; - ++str; ++s; - } - while (len < field_width--) { - if (str < end) - *str = ' '; - ++str; - } + str = string(str, end, va_arg(args, char *), field_width, precision, flags); continue; case 'p': - flags |= SMALL; - if (field_width == -1) { - field_width = 2*sizeof(void *); - flags |= ZEROPAD; - } - str = number(str, end, - (unsigned long) va_arg(args, void *), - 16, field_width, precision, flags); + str = pointer(fmt+1, str, end, + va_arg(args, void *), + field_width, precision, flags); + /* Skip all alphanumeric pointer suffixes */ + while (isalnum(fmt[1])) + fmt++; continue; - case 'n': /* FIXME: * What does C99 say about the overflow case here? */ diff --git a/mm/allocpercpu.c b/mm/allocpercpu.c index f4026bae6ee..05f2b4009cc 100644 --- a/mm/allocpercpu.c +++ b/mm/allocpercpu.c @@ -1,7 +1,7 @@ /* * linux/mm/allocpercpu.c * - * Separated from slab.c August 11, 2006 Christoph Lameter <clameter@sgi.com> + * Separated from slab.c August 11, 2006 Christoph Lameter */ #include <linux/mm.h> #include <linux/module.h> diff --git a/mm/memory.c b/mm/memory.c index d14b251a25a..2302d228fe0 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1151,7 +1151,7 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, * be processed until returning to user space. */ if (unlikely(test_tsk_thread_flag(tsk, TIF_MEMDIE))) - return -ENOMEM; + return i ? i : -ENOMEM; if (write) foll_flags |= FOLL_WRITE; @@ -1697,8 +1697,19 @@ static int do_wp_page(struct mm_struct *mm, struct vm_area_struct *vma, struct page *dirty_page = NULL; old_page = vm_normal_page(vma, address, orig_pte); - if (!old_page) + if (!old_page) { + /* + * VM_MIXEDMAP !pfn_valid() case + * + * We should not cow pages in a shared writeable mapping. + * Just mark the pages writable as we can't do any dirty + * accounting on raw pfn maps. + */ + if ((vma->vm_flags & (VM_WRITE|VM_SHARED)) == + (VM_WRITE|VM_SHARED)) + goto reuse; goto gotten; + } /* * Take out anonymous pages first, anonymous shared vmas are @@ -1751,6 +1762,7 @@ static int do_wp_page(struct mm_struct *mm, struct vm_area_struct *vma, } if (reuse) { +reuse: flush_cache_page(vma, address, pte_pfn(orig_pte)); entry = pte_mkyoung(orig_pte); entry = maybe_mkwrite(pte_mkdirty(entry), vma); diff --git a/mm/mempolicy.c b/mm/mempolicy.c index a37a5034f63..c94e58b192c 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -729,7 +729,11 @@ static long do_get_mempolicy(int *policy, nodemask_t *nmask, } else { *policy = pol == &default_policy ? MPOL_DEFAULT : pol->mode; - *policy |= pol->flags; + /* + * Internal mempolicy flags must be masked off before exposing + * the policy to userspace. + */ + *policy |= (pol->flags & MPOL_MODE_FLAGS); } if (vma) { diff --git a/mm/migrate.c b/mm/migrate.c index 112bcaeaa10..55bd355d170 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -9,7 +9,7 @@ * IWAMOTO Toshihiro <iwamoto@valinux.co.jp> * Hirokazu Takahashi <taka@valinux.co.jp> * Dave Hansen <haveblue@us.ibm.com> - * Christoph Lameter <clameter@sgi.com> + * Christoph Lameter */ #include <linux/migrate.h> diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 2f552955a02..f32fae3121f 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2328,7 +2328,6 @@ static void build_zonelists(pg_data_t *pgdat) static void build_zonelist_cache(pg_data_t *pgdat) { pgdat->node_zonelists[0].zlcache_ptr = NULL; - pgdat->node_zonelists[1].zlcache_ptr = NULL; } #endif /* CONFIG_NUMA */ diff --git a/mm/slub.c b/mm/slub.c index 0987d1cd943..1a427c0ae83 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -5,7 +5,7 @@ * The allocator synchronizes using per slab locks and only * uses a centralized lock to manage a pool of partial slabs. * - * (C) 2007 SGI, Christoph Lameter <clameter@sgi.com> + * (C) 2007 SGI, Christoph Lameter */ #include <linux/mm.h> @@ -2995,8 +2995,6 @@ void __init kmem_cache_init(void) create_kmalloc_cache(&kmalloc_caches[1], "kmalloc-96", 96, GFP_KERNEL); caches++; - } - if (KMALLOC_MIN_SIZE <= 128) { create_kmalloc_cache(&kmalloc_caches[2], "kmalloc-192", 192, GFP_KERNEL); caches++; @@ -3026,6 +3024,16 @@ void __init kmem_cache_init(void) for (i = 8; i < KMALLOC_MIN_SIZE; i += 8) size_index[(i - 1) / 8] = KMALLOC_SHIFT_LOW; + if (KMALLOC_MIN_SIZE == 128) { + /* + * The 192 byte sized cache is not used if the alignment + * is 128 byte. Redirect kmalloc to use the 256 byte cache + * instead. + */ + for (i = 128 + 8; i <= 192; i += 8) + size_index[(i - 1) / 8] = 8; + } + slab_state = UP; /* Provide the correct kmalloc names now that the caches are up */ diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c index 99c4f36eb8a..a91b5f8fcaf 100644 --- a/mm/sparse-vmemmap.c +++ b/mm/sparse-vmemmap.c @@ -1,7 +1,7 @@ /* * Virtual Memory Map support * - * (C) 2007 sgi. Christoph Lameter <clameter@sgi.com>. + * (C) 2007 sgi. Christoph Lameter. * * Virtual memory maps allow VM primitives pfn_to_page, page_to_pfn, * virt_to_page, page_address() to be implemented as a base offset diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index c2397f503b0..f38cc5317b8 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -442,12 +442,16 @@ int br_del_if(struct net_bridge *br, struct net_device *dev) void __exit br_cleanup_bridges(void) { - struct net_device *dev, *nxt; + struct net_device *dev; rtnl_lock(); - for_each_netdev_safe(&init_net, dev, nxt) - if (dev->priv_flags & IFF_EBRIDGE) +restart: + for_each_netdev(&init_net, dev) { + if (dev->priv_flags & IFF_EBRIDGE) { del_br(dev->priv); + goto restart; + } + } rtnl_unlock(); } diff --git a/net/can/af_can.c b/net/can/af_can.c index 7e8ca283645..484bbf6dd03 100644 --- a/net/can/af_can.c +++ b/net/can/af_can.c @@ -205,12 +205,19 @@ static int can_create(struct net *net, struct socket *sock, int protocol) * -ENOBUFS on full driver queue (see net_xmit_errno()) * -ENOMEM when local loopback failed at calling skb_clone() * -EPERM when trying to send on a non-CAN interface + * -EINVAL when the skb->data does not contain a valid CAN frame */ int can_send(struct sk_buff *skb, int loop) { struct sk_buff *newskb = NULL; + struct can_frame *cf = (struct can_frame *)skb->data; int err; + if (skb->len != sizeof(struct can_frame) || cf->can_dlc > 8) { + kfree_skb(skb); + return -EINVAL; + } + if (skb->dev->type != ARPHRD_CAN) { kfree_skb(skb); return -EPERM; @@ -605,6 +612,7 @@ static int can_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev) { struct dev_rcv_lists *d; + struct can_frame *cf = (struct can_frame *)skb->data; int matches; if (dev->type != ARPHRD_CAN || dev_net(dev) != &init_net) { @@ -612,6 +620,8 @@ static int can_rcv(struct sk_buff *skb, struct net_device *dev, return 0; } + BUG_ON(skb->len != sizeof(struct can_frame) || cf->can_dlc > 8); + /* update statistics */ can_stats.rx_frames++; can_stats.rx_frames_delta++; diff --git a/net/can/bcm.c b/net/can/bcm.c index d9a3a9d13be..72c2ce904f8 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -298,7 +298,7 @@ static void bcm_send_to_user(struct bcm_op *op, struct bcm_msg_head *head, if (head->nframes) { /* can_frames starting here */ - firstframe = (struct can_frame *) skb_tail_pointer(skb); + firstframe = (struct can_frame *)skb_tail_pointer(skb); memcpy(skb_put(skb, datalen), frames, datalen); @@ -826,6 +826,10 @@ static int bcm_tx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, for (i = 0; i < msg_head->nframes; i++) { err = memcpy_fromiovec((u8 *)&op->frames[i], msg->msg_iov, CFSIZ); + + if (op->frames[i].can_dlc > 8) + err = -EINVAL; + if (err < 0) return err; @@ -858,6 +862,10 @@ static int bcm_tx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, for (i = 0; i < msg_head->nframes; i++) { err = memcpy_fromiovec((u8 *)&op->frames[i], msg->msg_iov, CFSIZ); + + if (op->frames[i].can_dlc > 8) + err = -EINVAL; + if (err < 0) { if (op->frames != &op->sframe) kfree(op->frames); @@ -1164,9 +1172,12 @@ static int bcm_tx_send(struct msghdr *msg, int ifindex, struct sock *sk) skb->dev = dev; skb->sk = sk; - can_send(skb, 1); /* send with loopback */ + err = can_send(skb, 1); /* send with loopback */ dev_put(dev); + if (err) + return err; + return CFSIZ + MHSIZ; } @@ -1185,6 +1196,10 @@ static int bcm_sendmsg(struct kiocb *iocb, struct socket *sock, if (!bo->bound) return -ENOTCONN; + /* check for valid message length from userspace */ + if (size < MHSIZ || (size - MHSIZ) % CFSIZ) + return -EINVAL; + /* check for alternative ifindex for this bcm_op */ if (!ifindex && msg->msg_name) { @@ -1259,8 +1274,8 @@ static int bcm_sendmsg(struct kiocb *iocb, struct socket *sock, break; case TX_SEND: - /* we need at least one can_frame */ - if (msg_head.nframes < 1) + /* we need exactly one can_frame behind the msg head */ + if ((msg_head.nframes != 1) || (size != CFSIZ + MHSIZ)) ret = -EINVAL; else ret = bcm_tx_send(msg, ifindex, sk); diff --git a/net/can/raw.c b/net/can/raw.c index 69877b8e7e9..3e46ee36a1a 100644 --- a/net/can/raw.c +++ b/net/can/raw.c @@ -632,6 +632,9 @@ static int raw_sendmsg(struct kiocb *iocb, struct socket *sock, } else ifindex = ro->ifindex; + if (size != sizeof(struct can_frame)) + return -EINVAL; + dev = dev_get_by_index(&init_net, ifindex); if (!dev) return -ENXIO; diff --git a/net/core/dev.c b/net/core/dev.c index c421a1f8f0b..fca23a3bf12 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -454,7 +454,7 @@ static int netdev_boot_setup_add(char *name, struct ifmap *map) for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) { if (s[i].name[0] == '\0' || s[i].name[0] == ' ') { memset(s[i].name, 0, sizeof(s[i].name)); - strcpy(s[i].name, name); + strlcpy(s[i].name, name, IFNAMSIZ); memcpy(&s[i].map, map, sizeof(s[i].map)); break; } @@ -479,7 +479,7 @@ int netdev_boot_setup_check(struct net_device *dev) for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) { if (s[i].name[0] != '\0' && s[i].name[0] != ' ' && - !strncmp(dev->name, s[i].name, strlen(s[i].name))) { + !strcmp(dev->name, s[i].name)) { dev->irq = s[i].map.irq; dev->base_addr = s[i].map.base_addr; dev->mem_start = s[i].map.mem_start; @@ -2973,7 +2973,7 @@ EXPORT_SYMBOL(dev_unicast_delete); /** * dev_unicast_add - add a secondary unicast address * @dev: device - * @addr: address to delete + * @addr: address to add * @alen: length of @addr * * Add a secondary unicast address to the device or increase diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c index e3e9ab0f74e..277a2302eb3 100644 --- a/net/core/fib_rules.c +++ b/net/core/fib_rules.c @@ -226,7 +226,7 @@ static int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg) ops = lookup_rules_ops(net, frh->family); if (ops == NULL) { - err = EAFNOSUPPORT; + err = -EAFNOSUPPORT; goto errout; } @@ -365,7 +365,7 @@ static int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg) ops = lookup_rules_ops(net, frh->family); if (ops == NULL) { - err = EAFNOSUPPORT; + err = -EAFNOSUPPORT; goto errout; } diff --git a/net/core/filter.c b/net/core/filter.c index 4f8369729a4..df374435583 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -68,7 +68,6 @@ static inline void *load_pointer(struct sk_buff *skb, int k, * sk_filter - run a packet through a socket filter * @sk: sock associated with &sk_buff * @skb: buffer to filter - * @needlock: set to 1 if the sock is not locked by caller. * * Run the filter code and then cut skb->data to correct size returned by * sk_run_filter. If pkt_len is 0 we toss packet. If skb->len is smaller diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 1e556d31211..366621610e7 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -1292,12 +1292,14 @@ static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset, { unsigned int nr_pages = spd->nr_pages; unsigned int poff, plen, len, toff, tlen; - int headlen, seg; + int headlen, seg, error = 0; toff = *offset; tlen = *total_len; - if (!tlen) + if (!tlen) { + error = 1; goto err; + } /* * if the offset is greater than the linear part, go directly to @@ -1339,7 +1341,8 @@ static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset, * just jump directly to update and return, no point * in going over fragments when the output is full. */ - if (spd_fill_page(spd, virt_to_page(p), plen, poff, skb)) + error = spd_fill_page(spd, virt_to_page(p), plen, poff, skb); + if (error) goto done; tlen -= plen; @@ -1369,7 +1372,8 @@ map_frag: if (!plen) break; - if (spd_fill_page(spd, f->page, plen, poff, skb)) + error = spd_fill_page(spd, f->page, plen, poff, skb); + if (error) break; tlen -= plen; @@ -1382,7 +1386,10 @@ done: return 0; } err: - return 1; + /* update the offset to reflect the linear part skip, if any */ + if (!error) + *offset = toff; + return error; } /* diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c index 4ed429bd595..0546a0bc97e 100644 --- a/net/ipv4/inet_fragment.c +++ b/net/ipv4/inet_fragment.c @@ -192,14 +192,21 @@ EXPORT_SYMBOL(inet_frag_evictor); static struct inet_frag_queue *inet_frag_intern(struct netns_frags *nf, struct inet_frag_queue *qp_in, struct inet_frags *f, - unsigned int hash, void *arg) + void *arg) { struct inet_frag_queue *qp; #ifdef CONFIG_SMP struct hlist_node *n; #endif + unsigned int hash; write_lock(&f->lock); + /* + * While we stayed w/o the lock other CPU could update + * the rnd seed, so we need to re-calculate the hash + * chain. Fortunatelly the qp_in can be used to get one. + */ + hash = f->hashfn(qp_in); #ifdef CONFIG_SMP /* With SMP race we have to recheck hash table, because * such entry could be created on other cpu, while we @@ -247,7 +254,7 @@ static struct inet_frag_queue *inet_frag_alloc(struct netns_frags *nf, } static struct inet_frag_queue *inet_frag_create(struct netns_frags *nf, - struct inet_frags *f, void *arg, unsigned int hash) + struct inet_frags *f, void *arg) { struct inet_frag_queue *q; @@ -255,7 +262,7 @@ static struct inet_frag_queue *inet_frag_create(struct netns_frags *nf, if (q == NULL) return NULL; - return inet_frag_intern(nf, q, f, hash, arg); + return inet_frag_intern(nf, q, f, arg); } struct inet_frag_queue *inet_frag_find(struct netns_frags *nf, @@ -264,7 +271,6 @@ struct inet_frag_queue *inet_frag_find(struct netns_frags *nf, struct inet_frag_queue *q; struct hlist_node *n; - read_lock(&f->lock); hlist_for_each_entry(q, n, &f->hash[hash], list) { if (q->net == nf && f->match(q, key)) { atomic_inc(&q->refcnt); @@ -274,6 +280,6 @@ struct inet_frag_queue *inet_frag_find(struct netns_frags *nf, } read_unlock(&f->lock); - return inet_frag_create(nf, f, key, hash); + return inet_frag_create(nf, f, key); } EXPORT_SYMBOL(inet_frag_find); diff --git a/net/ipv4/inet_lro.c b/net/ipv4/inet_lro.c index 4a4d49fca1f..cfd034a2b96 100644 --- a/net/ipv4/inet_lro.c +++ b/net/ipv4/inet_lro.c @@ -383,8 +383,7 @@ static int __lro_proc_skb(struct net_lro_mgr *lro_mgr, struct sk_buff *skb, out2: /* send aggregated SKBs to stack */ lro_flush(lro_mgr, lro_desc); -out: /* Original SKB has to be posted to stack */ - skb->ip_summed = lro_mgr->ip_summed; +out: return 1; } diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index cd6ce6ac635..37221f65915 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -229,6 +229,8 @@ static inline struct ipq *ip_find(struct net *net, struct iphdr *iph, u32 user) arg.iph = iph; arg.user = user; + + read_lock(&ip4_frags.lock); hash = ipqhashfn(iph->id, iph->saddr, iph->daddr, iph->protocol); q = inet_frag_find(&net->ipv4.frags, &ip4_frags, &arg, hash); diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index fc54a48fde1..1d723de1868 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -255,11 +255,14 @@ #include <linux/init.h> #include <linux/fs.h> #include <linux/skbuff.h> +#include <linux/scatterlist.h> #include <linux/splice.h> #include <linux/net.h> #include <linux/socket.h> #include <linux/random.h> #include <linux/bootmem.h> +#include <linux/highmem.h> +#include <linux/swap.h> #include <linux/cache.h> #include <linux/err.h> #include <linux/crypto.h> @@ -1206,7 +1209,8 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc, return -ENOTCONN; while ((skb = tcp_recv_skb(sk, seq, &offset)) != NULL) { if (offset < skb->len) { - size_t used, len; + int used; + size_t len; len = skb->len - offset; /* Stop reading if we hit a patch of urgent data */ @@ -2620,7 +2624,7 @@ __setup("thash_entries=", set_thash_entries); void __init tcp_init(void) { struct sk_buff *skb = NULL; - unsigned long limit; + unsigned long nr_pages, limit; int order, i, max_share; BUILD_BUG_ON(sizeof(struct tcp_skb_cb) > sizeof(skb->cb)); @@ -2689,8 +2693,9 @@ void __init tcp_init(void) * is up to 1/2 at 256 MB, decreasing toward zero with the amount of * memory, with a floor of 128 pages. */ - limit = min(nr_all_pages, 1UL<<(28-PAGE_SHIFT)) >> (20-PAGE_SHIFT); - limit = (limit * (nr_all_pages >> (20-PAGE_SHIFT))) >> (PAGE_SHIFT-11); + nr_pages = totalram_pages - totalhigh_pages; + limit = min(nr_pages, 1UL<<(28-PAGE_SHIFT)) >> (20-PAGE_SHIFT); + limit = (limit * (nr_pages >> (20-PAGE_SHIFT))) >> (PAGE_SHIFT-11); limit = max(limit, 128UL); sysctl_tcp_mem[0] = limit / 4 * 3; sysctl_tcp_mem[1] = limit; diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 12695be2c25..ffe869ac1bc 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -2291,7 +2291,7 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i, int *len) } seq_printf(f, "%4d: %08X:%04X %08X:%04X %02X %08X:%08X %02X:%08lX " - "%08X %5d %8d %lu %d %p %u %u %u %u %d%n", + "%08X %5d %8d %lu %d %p %lu %lu %u %u %d%n", i, src, srcp, dest, destp, sk->sk_state, tp->write_seq - tp->snd_una, sk->sk_state == TCP_LISTEN ? sk->sk_ack_backlog : @@ -2303,8 +2303,8 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i, int *len) icsk->icsk_probes_out, sock_i_ino(sk), atomic_read(&sk->sk_refcnt), sk, - icsk->icsk_rto, - icsk->icsk_ack.ato, + jiffies_to_clock_t(icsk->icsk_rto), + jiffies_to_clock_t(icsk->icsk_ack.ato), (icsk->icsk_ack.quick << 1) | icsk->icsk_ack.pingpong, tp->snd_cwnd, tp->snd_ssthresh >= 0xFFFF ? -1 : tp->snd_ssthresh, diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c index 27a5e8b48d9..f405cea21a8 100644 --- a/net/ipv6/netfilter/ip6table_mangle.c +++ b/net/ipv6/netfilter/ip6table_mangle.c @@ -129,7 +129,7 @@ static struct nf_hook_ops ip6t_ops[] __read_mostly = { .priority = NF_IP6_PRI_MANGLE, }, { - .hook = ip6t_local_hook, + .hook = ip6t_route_hook, .owner = THIS_MODULE, .pf = PF_INET6, .hooknum = NF_INET_LOCAL_IN, diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c index e65e26e210e..cf20bc4fd60 100644 --- a/net/ipv6/netfilter/nf_conntrack_reasm.c +++ b/net/ipv6/netfilter/nf_conntrack_reasm.c @@ -207,9 +207,10 @@ fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst) arg.id = id; arg.src = src; arg.dst = dst; + + read_lock_bh(&nf_frags.lock); hash = ip6qhashfn(id, src, dst); - local_bh_disable(); q = inet_frag_find(&nf_init_frags, &nf_frags, &arg, hash); local_bh_enable(); if (q == NULL) diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c index 798cabc7535..a60d7d12971 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c @@ -247,6 +247,8 @@ fq_find(struct net *net, __be32 id, struct in6_addr *src, struct in6_addr *dst, arg.id = id; arg.src = src; arg.dst = dst; + + read_lock(&ip6_frags.lock); hash = ip6qhashfn(id, src, dst); q = inet_frag_find(&net->ipv6.frags, &ip6_frags, &arg, hash); diff --git a/net/ipv6/route.c b/net/ipv6/route.c index d1f3e19b06c..7ff687020fa 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -240,7 +240,7 @@ static inline int rt6_need_strict(struct in6_addr *daddr) static inline struct rt6_info *rt6_device_match(struct net *net, struct rt6_info *rt, int oif, - int strict) + int flags) { struct rt6_info *local = NULL; struct rt6_info *sprt; @@ -253,7 +253,7 @@ static inline struct rt6_info *rt6_device_match(struct net *net, if (dev->flags & IFF_LOOPBACK) { if (sprt->rt6i_idev == NULL || sprt->rt6i_idev->dev->ifindex != oif) { - if (strict && oif) + if (flags & RT6_LOOKUP_F_IFACE && oif) continue; if (local && (!oif || local->rt6i_idev->dev->ifindex == oif)) @@ -266,7 +266,7 @@ static inline struct rt6_info *rt6_device_match(struct net *net, if (local) return local; - if (strict) + if (flags & RT6_LOOKUP_F_IFACE) return net->ipv6.ip6_null_entry; } return rt; diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index cb46749d4c3..40ea9c36d24 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -2036,7 +2036,7 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i) seq_printf(seq, "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X " - "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %u %u %u %u %d\n", + "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %lu %lu %u %u %d\n", i, src->s6_addr32[0], src->s6_addr32[1], src->s6_addr32[2], src->s6_addr32[3], srcp, @@ -2052,8 +2052,8 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i) icsk->icsk_probes_out, sock_i_ino(sp), atomic_read(&sp->sk_refcnt), sp, - icsk->icsk_rto, - icsk->icsk_ack.ato, + jiffies_to_clock_t(icsk->icsk_rto), + jiffies_to_clock_t(icsk->icsk_ack.ato), (icsk->icsk_ack.quick << 1 ) | icsk->icsk_ack.pingpong, tp->snd_cwnd, tp->snd_ssthresh>=0xFFFF?-1:tp->snd_ssthresh ); diff --git a/net/mac80211/key.c b/net/mac80211/key.c index 150d66dbda9..220e83be3ef 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -380,6 +380,15 @@ void ieee80211_key_free(struct ieee80211_key *key) if (!key) return; + if (!key->sdata) { + /* The key has not been linked yet, simply free it + * and don't Oops */ + if (key->conf.alg == ALG_CCMP) + ieee80211_aes_key_free(key->u.ccmp.tfm); + kfree(key); + return; + } + spin_lock_irqsave(&key->sdata->local->key_lock, flags); __ieee80211_key_free(key); spin_unlock_irqrestore(&key->sdata->local->key_lock, flags); diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index 6106cb79060..e8404212ad5 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -95,6 +95,13 @@ static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr, } } + if (alg == ALG_WEP && + key_len != LEN_WEP40 && key_len != LEN_WEP104) { + ieee80211_key_free(key); + err = -EINVAL; + goto out_unlock; + } + ieee80211_key_link(key, sdata, sta); if (set_tx_key || (!sta && !sdata->default_key && key)) diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c index 635b996c8c3..5d09e8698b5 100644 --- a/net/mac80211/wme.c +++ b/net/mac80211/wme.c @@ -323,8 +323,7 @@ static void wme_qdiscop_destroy(struct Qdisc* qd) struct ieee80211_hw *hw = &local->hw; int queue; - tcf_destroy_chain(q->filter_list); - q->filter_list = NULL; + tcf_destroy_chain(&q->filter_list); for (queue=0; queue < hw->queues; queue++) { skb_queue_purge(&q->requeued[queue]); diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c index ba94004fe32..271cd01d57a 100644 --- a/net/netfilter/nf_conntrack_proto_tcp.c +++ b/net/netfilter/nf_conntrack_proto_tcp.c @@ -331,12 +331,13 @@ static unsigned int get_conntrack_index(const struct tcphdr *tcph) I. Upper bound for valid data: seq <= sender.td_maxend II. Lower bound for valid data: seq + len >= sender.td_end - receiver.td_maxwin - III. Upper bound for valid ack: sack <= receiver.td_end - IV. Lower bound for valid ack: ack >= receiver.td_end - MAXACKWINDOW + III. Upper bound for valid (s)ack: sack <= receiver.td_end + IV. Lower bound for valid (s)ack: sack >= receiver.td_end - MAXACKWINDOW - where sack is the highest right edge of sack block found in the packet. + where sack is the highest right edge of sack block found in the packet + or ack in the case of packet without SACK option. - The upper bound limit for a valid ack is not ignored - + The upper bound limit for a valid (s)ack is not ignored - we doesn't have to deal with fragments. */ @@ -606,12 +607,12 @@ static bool tcp_in_window(const struct nf_conn *ct, before(seq, sender->td_maxend + 1), after(end, sender->td_end - receiver->td_maxwin - 1), before(sack, receiver->td_end + 1), - after(ack, receiver->td_end - MAXACKWINDOW(sender))); + after(sack, receiver->td_end - MAXACKWINDOW(sender) - 1)); if (before(seq, sender->td_maxend + 1) && after(end, sender->td_end - receiver->td_maxwin - 1) && before(sack, receiver->td_end + 1) && - after(ack, receiver->td_end - MAXACKWINDOW(sender))) { + after(sack, receiver->td_end - MAXACKWINDOW(sender) - 1)) { /* * Take into account window scaling (RFC 1323). */ diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c index 0099da5b259..52b2611a6eb 100644 --- a/net/netlabel/netlabel_unlabeled.c +++ b/net/netlabel/netlabel_unlabeled.c @@ -1534,7 +1534,7 @@ static int netlbl_unlabel_staticlistdef(struct sk_buff *skb, } } list_for_each_entry_rcu(addr6, &iface->addr6_list, list) { - if (addr6->valid || iter_addr6++ < skip_addr6) + if (!addr6->valid || iter_addr6++ < skip_addr6) continue; if (netlbl_unlabel_staticlist_gen(NLBL_UNLABEL_C_STATICLISTDEF, iface, diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 9b97f8006c9..349aba18955 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -886,7 +886,7 @@ retry: return netlink_unicast_kernel(sk, skb); if (sk_filter(sk, skb)) { - int err = skb->len; + err = skb->len; kfree_skb(skb); sock_put(sk); return err; diff --git a/net/netlink/attr.c b/net/netlink/attr.c index 47bbf45ae5d..2d106cfe1d2 100644 --- a/net/netlink/attr.c +++ b/net/netlink/attr.c @@ -132,6 +132,7 @@ errout: * @maxtype: maximum attribute type to be expected * @head: head of attribute stream * @len: length of attribute stream + * @policy: validation policy * * Parses a stream of attributes and stores a pointer to each attribute in * the tb array accessable via the attribute type. Attributes with a type @@ -194,7 +195,7 @@ struct nlattr *nla_find(struct nlattr *head, int len, int attrtype) /** * nla_strlcpy - Copy string attribute payload into a sized buffer * @dst: where to copy the string to - * @src: attribute to copy the string from + * @nla: attribute to copy the string from * @dstsize: size of destination buffer * * Copies at most dstsize - 1 bytes into the destination buffer. @@ -340,9 +341,9 @@ struct nlattr *nla_reserve(struct sk_buff *skb, int attrtype, int attrlen) } /** - * nla_reserve - reserve room for attribute without header + * nla_reserve_nohdr - reserve room for attribute without header * @skb: socket buffer to reserve room on - * @len: length of attribute payload + * @attrlen: length of attribute payload * * Reserves room for attribute payload without a header. * diff --git a/net/sched/Kconfig b/net/sched/Kconfig index 82adfe6447d..9437b27ff84 100644 --- a/net/sched/Kconfig +++ b/net/sched/Kconfig @@ -106,17 +106,6 @@ config NET_SCH_PRIO To compile this code as a module, choose M here: the module will be called sch_prio. -config NET_SCH_RR - tristate "Multi Band Round Robin Queuing (RR)" - select NET_SCH_PRIO - ---help--- - Say Y here if you want to use an n-band round robin packet - scheduler. - - The module uses sch_prio for its framework and is aliased as - sch_rr, so it will load sch_prio, although it is referred - to using sch_rr. - config NET_SCH_RED tristate "Random Early Detection (RED)" ---help--- diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index c40773cdbe4..10f01ad0438 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -1252,12 +1252,12 @@ void tcf_destroy(struct tcf_proto *tp) kfree(tp); } -void tcf_destroy_chain(struct tcf_proto *fl) +void tcf_destroy_chain(struct tcf_proto **fl) { struct tcf_proto *tp; - while ((tp = fl) != NULL) { - fl = tp->next; + while ((tp = *fl) != NULL) { + *fl = tp->next; tcf_destroy(tp); } } diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c index 33527341638..db0e23ae85f 100644 --- a/net/sched/sch_atm.c +++ b/net/sched/sch_atm.c @@ -160,7 +160,7 @@ static void atm_tc_put(struct Qdisc *sch, unsigned long cl) *prev = flow->next; pr_debug("atm_tc_put: qdisc %p\n", flow->q); qdisc_destroy(flow->q); - tcf_destroy_chain(flow->filter_list); + tcf_destroy_chain(&flow->filter_list); if (flow->sock) { pr_debug("atm_tc_put: f_count %d\n", file_count(flow->sock->file)); @@ -586,10 +586,11 @@ static void atm_tc_destroy(struct Qdisc *sch) struct atm_flow_data *flow; pr_debug("atm_tc_destroy(sch %p,[qdisc %p])\n", sch, p); + for (flow = p->flows; flow; flow = flow->next) + tcf_destroy_chain(&flow->filter_list); + /* races ? */ while ((flow = p->flows)) { - tcf_destroy_chain(flow->filter_list); - flow->filter_list = NULL; if (flow->ref > 1) printk(KERN_ERR "atm_destroy: %p->ref = %d\n", flow, flow->ref); diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c index 09969c1fbc0..2a3c97f7dc6 100644 --- a/net/sched/sch_cbq.c +++ b/net/sched/sch_cbq.c @@ -1704,7 +1704,7 @@ static void cbq_destroy_class(struct Qdisc *sch, struct cbq_class *cl) BUG_TRAP(!cl->filters); - tcf_destroy_chain(cl->filter_list); + tcf_destroy_chain(&cl->filter_list); qdisc_destroy(cl->q); qdisc_put_rtab(cl->R_tab); gen_kill_estimator(&cl->bstats, &cl->rate_est); @@ -1728,10 +1728,8 @@ cbq_destroy(struct Qdisc* sch) * be bound to classes which have been destroyed already. --TGR '04 */ for (h = 0; h < 16; h++) { - for (cl = q->classes[h]; cl; cl = cl->next) { - tcf_destroy_chain(cl->filter_list); - cl->filter_list = NULL; - } + for (cl = q->classes[h]; cl; cl = cl->next) + tcf_destroy_chain(&cl->filter_list); } for (h = 0; h < 16; h++) { struct cbq_class *next; diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c index 64465bacbe7..c4c1317cd47 100644 --- a/net/sched/sch_dsmark.c +++ b/net/sched/sch_dsmark.c @@ -416,7 +416,7 @@ static void dsmark_destroy(struct Qdisc *sch) pr_debug("dsmark_destroy(sch %p,[qdisc %p])\n", sch, p); - tcf_destroy_chain(p->filter_list); + tcf_destroy_chain(&p->filter_list); qdisc_destroy(p->q); kfree(p->mask); } diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index d355e5e47fe..13afa721439 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -468,7 +468,7 @@ struct Qdisc *qdisc_alloc(struct net_device *dev, struct Qdisc_ops *ops) return sch; errout: - return ERR_PTR(-err); + return ERR_PTR(err); } struct Qdisc * qdisc_create_dflt(struct net_device *dev, struct Qdisc_ops *ops, diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c index fdfaa3fcc16..e817aa00441 100644 --- a/net/sched/sch_hfsc.c +++ b/net/sched/sch_hfsc.c @@ -1123,7 +1123,7 @@ hfsc_destroy_class(struct Qdisc *sch, struct hfsc_class *cl) { struct hfsc_sched *q = qdisc_priv(sch); - tcf_destroy_chain(cl->filter_list); + tcf_destroy_chain(&cl->filter_list); qdisc_destroy(cl->qdisc); gen_kill_estimator(&cl->bstats, &cl->rate_est); if (cl != &q->root) @@ -1541,6 +1541,10 @@ hfsc_destroy_qdisc(struct Qdisc *sch) unsigned int i; for (i = 0; i < HFSC_HSIZE; i++) { + list_for_each_entry(cl, &q->clhash[i], hlist) + tcf_destroy_chain(&cl->filter_list); + } + for (i = 0; i < HFSC_HSIZE; i++) { list_for_each_entry_safe(cl, next, &q->clhash[i], hlist) hfsc_destroy_class(sch, cl); } diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index 6807c97985a..3fb58f428f7 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -1238,7 +1238,7 @@ static void htb_destroy_class(struct Qdisc *sch, struct htb_class *cl) qdisc_put_rtab(cl->rate); qdisc_put_rtab(cl->ceil); - tcf_destroy_chain(cl->filter_list); + tcf_destroy_chain(&cl->filter_list); while (!list_empty(&cl->children)) htb_destroy_class(sch, list_entry(cl->children.next, @@ -1267,7 +1267,7 @@ static void htb_destroy(struct Qdisc *sch) and surprisingly it worked in 2.4. But it must precede it because filter need its target class alive to be able to call unbind_filter on it (without Oops). */ - tcf_destroy_chain(q->filter_list); + tcf_destroy_chain(&q->filter_list); while (!list_empty(&q->root)) htb_destroy_class(sch, list_entry(q->root.next, diff --git a/net/sched/sch_ingress.c b/net/sched/sch_ingress.c index 274b1ddb160..956c80ad596 100644 --- a/net/sched/sch_ingress.c +++ b/net/sched/sch_ingress.c @@ -104,7 +104,7 @@ static void ingress_destroy(struct Qdisc *sch) { struct ingress_qdisc_data *p = qdisc_priv(sch); - tcf_destroy_chain(p->filter_list); + tcf_destroy_chain(&p->filter_list); } static int ingress_dump(struct Qdisc *sch, struct sk_buff *skb) diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c index 4aa2b45dad0..5532f1031ab 100644 --- a/net/sched/sch_prio.c +++ b/net/sched/sch_prio.c @@ -219,7 +219,7 @@ prio_destroy(struct Qdisc* sch) int prio; struct prio_sched_data *q = qdisc_priv(sch); - tcf_destroy_chain(q->filter_list); + tcf_destroy_chain(&q->filter_list); for (prio=0; prio<q->bands; prio++) qdisc_destroy(q->queues[prio]); } diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c index f0463d757a9..6a97afbfb95 100644 --- a/net/sched/sch_sfq.c +++ b/net/sched/sch_sfq.c @@ -520,7 +520,7 @@ static void sfq_destroy(struct Qdisc *sch) { struct sfq_sched_data *q = qdisc_priv(sch); - tcf_destroy_chain(q->filter_list); + tcf_destroy_chain(&q->filter_list); q->perturb_period = 0; del_timer_sync(&q->perturb_timer); } diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c index 5905d56737d..81ae3d62a0c 100644 --- a/net/sunrpc/auth_gss/svcauth_gss.c +++ b/net/sunrpc/auth_gss/svcauth_gss.c @@ -1144,20 +1144,20 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp) case RPC_GSS_SVC_NONE: break; case RPC_GSS_SVC_INTEGRITY: + /* placeholders for length and seq. number: */ + svc_putnl(resv, 0); + svc_putnl(resv, 0); if (unwrap_integ_data(&rqstp->rq_arg, gc->gc_seq, rsci->mechctx)) goto garbage_args; + break; + case RPC_GSS_SVC_PRIVACY: /* placeholders for length and seq. number: */ svc_putnl(resv, 0); svc_putnl(resv, 0); - break; - case RPC_GSS_SVC_PRIVACY: if (unwrap_priv_data(rqstp, &rqstp->rq_arg, gc->gc_seq, rsci->mechctx)) goto garbage_args; - /* placeholders for length and seq. number: */ - svc_putnl(resv, 0); - svc_putnl(resv, 0); break; default: goto auth_err; @@ -1170,8 +1170,6 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp) goto out; } garbage_args: - /* Restore write pointer to its original value: */ - xdr_ressize_check(rqstp, reject_stat); ret = SVC_GARBAGE; goto out; auth_err: diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c index 0517967a68b..e6fb21b19b8 100644 --- a/net/sunrpc/rpcb_clnt.c +++ b/net/sunrpc/rpcb_clnt.c @@ -243,10 +243,10 @@ int rpcb_getport_sync(struct sockaddr_in *sin, u32 prog, u32 vers, int prot) } EXPORT_SYMBOL_GPL(rpcb_getport_sync); -static struct rpc_task *rpcb_call_async(struct rpc_clnt *rpcb_clnt, struct rpcbind_args *map, int version) +static struct rpc_task *rpcb_call_async(struct rpc_clnt *rpcb_clnt, struct rpcbind_args *map, struct rpc_procinfo *proc) { struct rpc_message msg = { - .rpc_proc = rpcb_next_version[version].rpc_proc, + .rpc_proc = proc, .rpc_argp = map, .rpc_resp = &map->r_port, }; @@ -271,6 +271,7 @@ static struct rpc_task *rpcb_call_async(struct rpc_clnt *rpcb_clnt, struct rpcbi void rpcb_getport_async(struct rpc_task *task) { struct rpc_clnt *clnt = task->tk_client; + struct rpc_procinfo *proc; u32 bind_version; struct rpc_xprt *xprt = task->tk_xprt; struct rpc_clnt *rpcb_clnt; @@ -280,7 +281,6 @@ void rpcb_getport_async(struct rpc_task *task) struct sockaddr *sap = (struct sockaddr *)&addr; size_t salen; int status; - struct rpcb_info *info; dprintk("RPC: %5u %s(%s, %u, %u, %d)\n", task->tk_pid, __func__, @@ -313,10 +313,12 @@ void rpcb_getport_async(struct rpc_task *task) /* Don't ever use rpcbind v2 for AF_INET6 requests */ switch (sap->sa_family) { case AF_INET: - info = rpcb_next_version; + proc = rpcb_next_version[xprt->bind_index].rpc_proc; + bind_version = rpcb_next_version[xprt->bind_index].rpc_vers; break; case AF_INET6: - info = rpcb_next_version6; + proc = rpcb_next_version6[xprt->bind_index].rpc_proc; + bind_version = rpcb_next_version6[xprt->bind_index].rpc_vers; break; default: status = -EAFNOSUPPORT; @@ -324,14 +326,13 @@ void rpcb_getport_async(struct rpc_task *task) task->tk_pid, __func__); goto bailout_nofree; } - if (info[xprt->bind_index].rpc_proc == NULL) { + if (proc == NULL) { xprt->bind_index = 0; status = -EPFNOSUPPORT; dprintk("RPC: %5u %s: no more getport versions available\n", task->tk_pid, __func__); goto bailout_nofree; } - bind_version = info[xprt->bind_index].rpc_vers; dprintk("RPC: %5u %s: trying rpcbind version %u\n", task->tk_pid, __func__, bind_version); @@ -361,22 +362,20 @@ void rpcb_getport_async(struct rpc_task *task) map->r_addr = rpc_peeraddr2str(rpcb_clnt, RPC_DISPLAY_UNIVERSAL_ADDR); map->r_owner = RPCB_OWNER_STRING; /* ignored for GETADDR */ - child = rpcb_call_async(rpcb_clnt, map, xprt->bind_index); + child = rpcb_call_async(rpcb_clnt, map, proc); rpc_release_client(rpcb_clnt); if (IS_ERR(child)) { status = -EIO; + /* rpcb_map_release() has freed the arguments */ dprintk("RPC: %5u %s: rpc_run_task failed\n", task->tk_pid, __func__); - goto bailout; + goto bailout_nofree; } rpc_put_task(child); task->tk_xprt->stat.bind_count++; return; -bailout: - kfree(map); - xprt_put(xprt); bailout_nofree: rpcb_wake_rpcbind_waiters(xprt, status); bailout_nowake: diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 657835f227d..783317dacd3 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -487,8 +487,8 @@ static int unix_socketpair(struct socket *, struct socket *); static int unix_accept(struct socket *, struct socket *, int); static int unix_getname(struct socket *, struct sockaddr *, int *, int); static unsigned int unix_poll(struct file *, struct socket *, poll_table *); -static unsigned int unix_datagram_poll(struct file *, struct socket *, - poll_table *); +static unsigned int unix_dgram_poll(struct file *, struct socket *, + poll_table *); static int unix_ioctl(struct socket *, unsigned int, unsigned long); static int unix_shutdown(struct socket *, int); static int unix_stream_sendmsg(struct kiocb *, struct socket *, @@ -534,7 +534,7 @@ static const struct proto_ops unix_dgram_ops = { .socketpair = unix_socketpair, .accept = sock_no_accept, .getname = unix_getname, - .poll = unix_datagram_poll, + .poll = unix_dgram_poll, .ioctl = unix_ioctl, .listen = sock_no_listen, .shutdown = unix_shutdown, @@ -555,7 +555,7 @@ static const struct proto_ops unix_seqpacket_ops = { .socketpair = unix_socketpair, .accept = unix_accept, .getname = unix_getname, - .poll = unix_datagram_poll, + .poll = unix_dgram_poll, .ioctl = unix_ioctl, .listen = unix_listen, .shutdown = unix_shutdown, @@ -1994,29 +1994,13 @@ static unsigned int unix_poll(struct file * file, struct socket *sock, poll_tabl return mask; } -static unsigned int unix_datagram_poll(struct file *file, struct socket *sock, - poll_table *wait) +static unsigned int unix_dgram_poll(struct file *file, struct socket *sock, + poll_table *wait) { - struct sock *sk = sock->sk, *peer; - unsigned int mask; + struct sock *sk = sock->sk, *other; + unsigned int mask, writable; poll_wait(file, sk->sk_sleep, wait); - - peer = unix_peer_get(sk); - if (peer) { - if (peer != sk) { - /* - * Writability of a connected socket additionally - * depends on the state of the receive queue of the - * peer. - */ - poll_wait(file, &unix_sk(peer)->peer_wait, wait); - } else { - sock_put(peer); - peer = NULL; - } - } - mask = 0; /* exceptional events? */ @@ -2042,14 +2026,26 @@ static unsigned int unix_datagram_poll(struct file *file, struct socket *sock, } /* writable? */ - if (unix_writable(sk) && !(peer && unix_recvq_full(peer))) + writable = unix_writable(sk); + if (writable) { + other = unix_peer_get(sk); + if (other) { + if (unix_peer(other) != sk) { + poll_wait(file, &unix_sk(other)->peer_wait, + wait); + if (unix_recvq_full(other)) + writable = 0; + } + + sock_put(other); + } + } + + if (writable) mask |= POLLOUT | POLLWRNORM | POLLWRBAND; else set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags); - if (peer) - sock_put(peer); - return mask; } diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 185488da246..855bff4b325 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -80,6 +80,23 @@ static const struct ieee80211_channel_range ieee80211_JP_channels[] = { IEEE80211_CHAN_RADAR), }; +static const struct ieee80211_channel_range ieee80211_EU_channels[] = { + /* IEEE 802.11b/g, channels 1..13 */ + RANGE_PWR(2412, 2472, 20, 6, 0), + /* IEEE 802.11a, channel 36*/ + RANGE_PWR(5180, 5180, 23, 6, IEEE80211_CHAN_PASSIVE_SCAN), + /* IEEE 802.11a, channel 40*/ + RANGE_PWR(5200, 5200, 23, 6, IEEE80211_CHAN_PASSIVE_SCAN), + /* IEEE 802.11a, channel 44*/ + RANGE_PWR(5220, 5220, 23, 6, IEEE80211_CHAN_PASSIVE_SCAN), + /* IEEE 802.11a, channels 48..64 */ + RANGE_PWR(5240, 5320, 23, 6, IEEE80211_CHAN_NO_IBSS | + IEEE80211_CHAN_RADAR), + /* IEEE 802.11a, channels 100..140 */ + RANGE_PWR(5500, 5700, 30, 6, IEEE80211_CHAN_NO_IBSS | + IEEE80211_CHAN_RADAR), +}; + #define REGDOM(_code) \ { \ .code = __stringify(_code), \ @@ -90,6 +107,7 @@ static const struct ieee80211_channel_range ieee80211_JP_channels[] = { static const struct ieee80211_regdomain ieee80211_regdoms[] = { REGDOM(US), REGDOM(JP), + REGDOM(EU), }; diff --git a/security/commoncap.c b/security/commoncap.c index 5edabc7542a..33d34330841 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -103,10 +103,16 @@ static inline int cap_inh_is_capped(void) return (cap_capable(current, CAP_SETPCAP) != 0); } +static inline int cap_limit_ptraced_target(void) { return 1; } + #else /* ie., ndef CONFIG_SECURITY_FILE_CAPABILITIES */ static inline int cap_block_setpcap(struct task_struct *t) { return 0; } static inline int cap_inh_is_capped(void) { return 1; } +static inline int cap_limit_ptraced_target(void) +{ + return !capable(CAP_SETPCAP); +} #endif /* def CONFIG_SECURITY_FILE_CAPABILITIES */ @@ -342,9 +348,10 @@ void cap_bprm_apply_creds (struct linux_binprm *bprm, int unsafe) bprm->e_uid = current->uid; bprm->e_gid = current->gid; } - if (!capable (CAP_SETPCAP)) { - new_permitted = cap_intersect (new_permitted, - current->cap_permitted); + if (cap_limit_ptraced_target()) { + new_permitted = + cap_intersect(new_permitted, + current->cap_permitted); } } } diff --git a/security/device_cgroup.c b/security/device_cgroup.c index baf348834b6..fd764a0858d 100644 --- a/security/device_cgroup.c +++ b/security/device_cgroup.c @@ -382,6 +382,8 @@ static ssize_t devcgroup_access_write(struct cgroup *cgroup, struct cftype *cft, case 'a': wh.type = DEV_ALL; wh.access = ACC_MASK; + wh.major = ~0; + wh.minor = ~0; goto handle; case 'b': wh.type = DEV_BLOCK; diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c index 1dcf9f3d110..44589088941 100644 --- a/virt/kvm/ioapic.c +++ b/virt/kvm/ioapic.c @@ -278,7 +278,7 @@ static void __kvm_ioapic_update_eoi(struct kvm_ioapic *ioapic, int gsi) ent->fields.remote_irr = 0; if (!ent->fields.mask && (ioapic->irr & (1 << gsi))) - ioapic_deliver(ioapic, gsi); + ioapic_service(ioapic, gsi); } void kvm_ioapic_update_eoi(struct kvm *kvm, int vector) |