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path: root/drivers/staging/ipack
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2012-11-16Staging: ipack: move out of stagingGreg Kroah-Hartman
The ipack subsystem is cleaned up enough to now move out of the staging tree, and into drivers/ipack. Cc: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Cc: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-16Staging: ipack: adapt copyright to CERN guidelinesSamuel Iglesias Gonsalvez
Adapt the copyright clause to CERN guidelines, as it has the copyright over them. Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-15Staging: ipack: remove last TODO itemsGreg Kroah-Hartman
The code is checkpatch clean, and the logic and flow looks good to me, so I don't think there's anything left to do here. Cc: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Cc: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-15Staging: ipack: CONFIG_HOTPLUG is always enabledGreg Kroah-Hartman
as CONFIG_HOTPLUG is always enabled now, just remove the #ifdef logic in the ipack core for it if was disabled. Cc:Samuel Iglesias Gonsalvez <siglesias@igalia.com> Cc: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-13staging: ipack: tpci200: fixes 80 character line length issueJohan Meiring
This fixes one of the two instances of an 80+ char line in the file. Fixing the other instance would have decreased the readability of the code, in my opinion. Signed-off-by: Johan Meiring <johanmeiring@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-13Staging: ipack: ipack: fix coding style issuesJohan Meiring
This uses linux/io.h instead of asm/io.h and cleans up an 80+ character issue. Signed-off-by: Johan Meiring <johanmeiring@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-22Staging: ipack/carriers: fix missing include linux/slab.hSamuel Iglesias Gonsalvez
Kernel build failed for parisc architecture: drivers/staging/ipack/carriers/tpci200.c: In function 'tpci200_free_irq': drivers/staging/ipack/carriers/tpci200.c:190:2: error: implicit declaration of function 'kfree' [-Werror=implicit-function-declaration] drivers/staging/ipack/carriers/tpci200.c: In function 'tpci200_request_irq': drivers/staging/ipack/carriers/tpci200.c:217:2: error: implicit declaration of function 'kzalloc' [-Werror=implicit-function-declaration] Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19Staging: ipack/bridges/tpci200: use module_pci_driver to simplify the codeWei Yongjun
Use the module_pci_driver() macro to make the code simpler by eliminating module_init and module_exit calls. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19Staging: ipack: fix wrong return value.Samuel Iglesias Gonsalvez
In case it is not possible to remap the memory, it returns 0 and the driver thinks that everything went fine. Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19staging: ipack: Documentation cleanups.Jens Taprogge
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19staging: ipack: Rename bridges to carriers.Jens Taprogge
This is the name used by the standard. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19Staging: ipack: remove blank line at EOF warning in Kconfig filesSamuel Iglesias Gonsalvez
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19staging: ipack: Add support for IPACK_MEM16_SPACE.Jens Taprogge
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19staging: ipack: Rename IPACK_MEM_SPACE to IPACK_MEM8_SPACE.Jens Taprogge
There also is a MEM16 space. This will make it clear which one is which, once support for MEM16 space is added. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19Staging: ipack: remove memory mapping callbacks.Jens Taprogge
Now that we have the infrastructure to use the regular function in place and all existing users are converted, remove the map and unmap callbacks from the ipack_bus_device->ops. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19staging: ipack: swich to regular ioremap and friends.Jens Taprogge
Use the regular ioremap functions and their managed counterparts instead of the ones provided through IPack callbacks. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19staging: ipack/devices/ipoctal: obtain model from dev->id_device.Jens Taprogge
By doing so we can remove ipoctal_check_model() and we also no longer need to map the IPACK_ID_SPACE. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19staging: ipack/devices/ipoctal: fix ipoctal_inst_slot error path.Jens Taprogge
The ordering was wrong. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19Staging: ipack: Provide physical memory regions to IPack devices.Jens Taprogge
This will allow us to use the regular ioremop functions. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19Staging: ipack/bridges/tpci200: Cleanups.Jens Taprogge
Constant renames: - Rename TPCI200_*_GAP to TPCI200_*_INTERVAL. - Rename TPCI200_MEM*_* to TPCI200_MEM*_SPACE_* (to match the other SPACE constants. Make tpci200_status_timeout and tpci200_status_error const. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19Staging: ipack/bridges/tpci200: Store beginning of module memory regions in ↵Jens Taprogge
struct tpci200. tpci200_register is converted to use this. A later patch will build on this. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19Staging: ipack/bridges/tpci200: change tpci200_slot->*_phys type.Jens Taprogge
Previously the *_phys fields were of type ipack_addr_space, which use void pointers to refer to memory addresses. Since the *_phys fields refer to unmapped memory, this is not correct. Introduce a new struct ipack_region (which uses phys_addr_t to refer to the start of a region) and use that as a replacement for struct ipack_addr_space. struct ipack_region is defined in ipack.h because it is planned to later expose the physical addressed to the IPack Module drivers. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19Staging: ipack/bridges/tpci200: Don't map memory spaces that are not used ↵Jens Taprogge
later on. Remove the unused pointers to these spaces. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19Staging: ipack: Make ipack_device_register() analogous to device_register().Jens Taprogge
ipack_device_register() is no longer creating the struct ipack_device but only registering it. Instead of releasing memory directly the new ipack_device->release callback is called. This is preparational work for later patches. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-19Staging: ipack: get rid of ipack_device->bus_nr.Jens Taprogge
It is replicating information contained in ipack_device->bus->bus_nr. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-10-01Merge tag 'tty-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds
Pull TTY changes from Greg Kroah-Hartman: "As we skipped the merge window for 3.6-rc1 for the tty tree, everything is now settled down and working properly, so we are ready for 3.7-rc1. Here's the patchset, it's big, but the large changes are removing a firmware file and adding a staging tty driver (it depended on the tty core changes, so it's going through this tree instead of the staging tree.) All of these patches have been in the linux-next tree for a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fix up more-or-less trivial conflicts in - drivers/char/pcmcia/synclink_cs.c: tty NULL dereference fix vs tty_port_cts_enabled() helper function - drivers/staging/{Kconfig,Makefile}: add-add conflict (dgrp driver added close to other staging drivers) - drivers/staging/ipack/devices/ipoctal.c: "split ipoctal_channel from iopctal" vs "TTY: use tty_port_register_device" * tag 'tty-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (235 commits) tty/serial: Add kgdb_nmi driver tty/serial/amba-pl011: Quiesce interrupts in poll_get_char tty/serial/amba-pl011: Implement poll_init callback tty/serial/core: Introduce poll_init callback kdb: Turn KGDB_KDB=n stubs into static inlines kdb: Implement disable_nmi command kernel/debug: Mask KGDB NMI upon entry serial: pl011: handle corruption at high clock speeds serial: sccnxp: Make 'default' choice in switch last serial: sccnxp: Remove mask termios caps for SW flow control serial: sccnxp: Report actual baudrate back to core serial: samsung: Add poll_get_char & poll_put_char Powerpc 8xx CPM_UART setting MAXIDL register proportionaly to baud rate Powerpc 8xx CPM_UART maxidl should not depend on fifo size Powerpc 8xx CPM_UART too many interrupts Powerpc 8xx CPM_UART desynchronisation serial: set correct baud_base for EXSYS EX-41092 Dual 16950 serial: omap: fix the reciever line error case 8250: blacklist Winbond CIR port 8250_pnp: do pnp probe before legacy probe ...
2012-09-13Staging: ipack/devices/ipoctal: simplify ipoctal_write_tty()Samuel Iglesias Gonsalvez
Remove count_wr and the assigment of nb_bytes = 0 in that function as is useless. Now it returns the count of the characters actually sent. There is other nb_bytes = 0 deleted that has a duplicate a few lines before. Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-13Staging: ipack/devices/ipoctal: acknowledge BREAK condition.Samuel Iglesias Gonsalvez
Clear the BREAK flag from the ISR register. Doing that, we avoid to read the same condition for the next character received. Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-13staging: ipack: remove irq field in struct ipack_device.Jens Taprogge
The field irq currently is identical to the slot number. It does not seem to have any real use. The number is written to hardware in ipoctal but it seems the value that is written does not matter. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-13Staging: ipack: move the responsibility to clear interrupts to the IPack ↵Jens Taprogge
devices. Now the IPack device acknowledges its own IRQ. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-13Staging: ipack: Add IPACK_INT_SPACE memory space.Jens Taprogge
This will allow us to correctly access the IPack INT space. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12staging: ipack/bridges/tpci200: Use endianess-aware types where applicable.Jens Taprogge
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack/devices/ipoctal: Unmap memory on device removal.Jens Taprogge
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack: update TODO fileSamuel Iglesias Gonsalvez
With the latest patches, the TODO file was outdated. Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack/devices/ipoctal: read more than one character from RX FIFO.Samuel Iglesias Gonsalvez
The RX FIFO has a size of 3 characters. Check if when we are picking the oldest one, we have more to read. Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack/devices/ipoctal: Get rid of ipoctal_list.Jens Taprogge
Use tty_dev->dev's drdata to associate struct ipocal_channel to the respective tty_struct. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack/devices/ipoctal: Use KBUILD_MODNAME instead of hardcoded string.Jens Taprogge
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack/devices/ipoctal: Check tty_register_device return value.Jens Taprogge
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack/devices/ipoctal: Clean up device removal.Jens Taprogge
Make use of dev_set_drvdata() and dev_get_drvdata() to store and obtain a pointer to the ipoctal struct corresponding to a struct dev. Previously we relied on a private list of devices. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack: Let interrupts return irqreturn_t.Jens Taprogge
Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack/bridges/tpci200: move tpci200_free_irq() and ↵Jens Taprogge
tpci200_request_irq() Now, all the interrupt related functions are next to each other. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack/bridges/tpci200: More cleanups.Jens Taprogge
Rename __tpci_request_irq() to tpci_enable_irq() and __tpci_free_irq() to tpci_disable_irq(). Change their second argument, move them above tpci200_interrupt(), and use tpci_disable_irq() in the latter Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack/bridges/tpci200: Cleanup in tpci200_slot_irq() and ↵Jens Taprogge
tpci200_interrupt() Minor cleanup. No functional changes. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack/bridges/tpci200: Clean up interrupt handling.Jens Taprogge
Previously the return value from tpci200_interrupt was not quite correct if a slot had caused an interrupt but no handler was instellalled: IRQ_NONE was returned. However in this case we react to the interrupt by disabling the IPack device interrupt. Basically there are two cases the code now distinguishes: - The tpci200 has raised an interrupt. We handle it and return IRQ_HANDLED. - Our device did not raise an interrupt. We return IRQ_NONE. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack/bridges/tpci200: Protect device registers with spinlock.Jens Taprogge
Some of the device registers are accessed from both interrupt and non-interrupt context. To ensure proper read-modify-write modification of these registers we can not use the "global" tpci200 mutex. Instead a spin-lock is used. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack/bridges/tpci200: RCU protect slot_irq pointers.Jens Taprogge
In tpci200_request_irq as well as tpci200_free_irq we set and unset the pointer to struct slot_irq. This pointer is accessed in tpci200_interrupt. To ensure that the pointer is not freed after it has been fetched in tpci200_interrupt() it is now protected through RCU. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack/devices/ipoctal: remove superfluous function.Jens Taprogge
ipoctal_write_tty and ipoctal_write are merged. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack/devices/ipoctal: Split interrupt service routine.Jens Taprogge
Split the IRQ service routing in TX part and RX part. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack/devices/ipoctal: Store isr masks in ipoctal_channelJens Taprogge
This way interrupt handling becomes independent of the channel number. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12Staging: ipack/devices/ipoctal: put ipoctal_channel into tty->driver_data.Jens Taprogge
Each tty's driver_data is now pointing to the channel it is talking to. struct ipoctal_channel contains all the information the callbacks require to do their work. Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org> Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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