diff options
Diffstat (limited to 'drivers/staging/android/Kconfig')
| -rw-r--r-- | drivers/staging/android/Kconfig | 149 |
1 files changed, 90 insertions, 59 deletions
diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig index 604bd1e0d54..99e484f845f 100644 --- a/drivers/staging/android/Kconfig +++ b/drivers/staging/android/Kconfig @@ -2,86 +2,117 @@ menu "Android" config ANDROID bool "Android Drivers" - default N ---help--- Enable support for various drivers needed on the Android platform +if ANDROID + config ANDROID_BINDER_IPC bool "Android Binder IPC Driver" + depends on MMU default n + ---help--- + Binder is used in Android for both communication between processes, + and remote method invocation. -config ANDROID_LOGGER - tristate "Android log driver" - default n - -config ANDROID_RAM_CONSOLE - bool "Android RAM buffer console" - default n + This means one Android process can call a method/routine in another + Android process, using Binder to identify, invoke and pass arguments + between said processes. -config ANDROID_RAM_CONSOLE_ENABLE_VERBOSE - bool "Enable verbose console messages on Android RAM console" +config ANDROID_BINDER_IPC_32BIT + bool + depends on !64BIT && ANDROID_BINDER_IPC default y - depends on ANDROID_RAM_CONSOLE + ---help--- + The Binder API has been changed to support both 32 and 64bit + applications in a mixed environment. + + Enable this to support an old 32-bit Android user-space (v4.4 and + earlier). -menuconfig ANDROID_RAM_CONSOLE_ERROR_CORRECTION - bool "Android RAM Console Enable error correction" + Note that enabling this will break newer Android user-space. + +config ASHMEM + bool "Enable the Anonymous Shared Memory Subsystem" default n - depends on ANDROID_RAM_CONSOLE - depends on !ANDROID_RAM_CONSOLE_EARLY_INIT - select REED_SOLOMON - select REED_SOLOMON_ENC8 - select REED_SOLOMON_DEC8 - -if ANDROID_RAM_CONSOLE_ERROR_CORRECTION - -config ANDROID_RAM_CONSOLE_ERROR_CORRECTION_DATA_SIZE - int "Android RAM Console Data data size" - default 128 - help - Must be a power of 2. - -config ANDROID_RAM_CONSOLE_ERROR_CORRECTION_ECC_SIZE - int "Android RAM Console ECC size" - default 16 - -config ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE - int "Android RAM Console Symbol size" - default 8 - -config ANDROID_RAM_CONSOLE_ERROR_CORRECTION_POLYNOMIAL - hex "Android RAM Console Polynomial" - default 0x19 if (ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE = 4) - default 0x29 if (ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE = 5) - default 0x61 if (ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE = 6) - default 0x89 if (ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE = 7) - default 0x11d if (ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE = 8) - -endif # ANDROID_RAM_CONSOLE_ERROR_CORRECTION - -config ANDROID_RAM_CONSOLE_EARLY_INIT - bool "Start Android RAM console early" + depends on SHMEM + ---help--- + The ashmem subsystem is a new shared memory allocator, similar to + POSIX SHM but with different behavior and sporting a simpler + file-based API. + + It is, in theory, a good memory allocator for low-memory devices, + because it can discard shared memory units when under memory pressure. + +config ANDROID_LOGGER + tristate "Android log driver" default n - depends on ANDROID_RAM_CONSOLE + ---help--- + This adds support for system-wide logging using four log buffers. + + These are: -config ANDROID_RAM_CONSOLE_EARLY_ADDR - hex "Android RAM console virtual address" - default 0 - depends on ANDROID_RAM_CONSOLE_EARLY_INIT + 1: main + 2: events + 3: radio + 4: system -config ANDROID_RAM_CONSOLE_EARLY_SIZE - hex "Android RAM console buffer size" - default 0 - depends on ANDROID_RAM_CONSOLE_EARLY_INIT + Log reading and writing is performed via normal Linux reads and + optimized writes. This optimization avoids logging having too + much overhead in the system. + +config ANDROID_TIMED_OUTPUT + bool "Timed output class driver" + default y config ANDROID_TIMED_GPIO tristate "Android timed gpio driver" - depends on GENERIC_GPIO + depends on GPIOLIB && ANDROID_TIMED_OUTPUT default n config ANDROID_LOW_MEMORY_KILLER bool "Android Low Memory Killer" - default N ---help--- - Register processes to be killed when memory is low + Registers processes to be killed when memory is low + +config ANDROID_INTF_ALARM_DEV + bool "Android alarm driver" + depends on RTC_CLASS + default n + ---help--- + Provides non-wakeup and rtc backed wakeup alarms based on rtc or + elapsed realtime, and a non-wakeup alarm on the monotonic clock. + Also exports the alarm interface to user-space. + +config SYNC + bool "Synchronization framework" + default n + select ANON_INODES + ---help--- + This option enables the framework for synchronization between multiple + drivers. Sync implementations can take advantage of hardware + synchronization built into devices like GPUs. + +config SW_SYNC + bool "Software synchronization objects" + default n + depends on SYNC + ---help--- + A sync object driver that uses a 32bit counter to coordinate + syncrhronization. Useful when there is no hardware primitive backing + the synchronization. + +config SW_SYNC_USER + bool "Userspace API for SW_SYNC" + default n + depends on SW_SYNC + ---help--- + Provides a user space API to the sw sync object. + *WARNING* improper use of this can result in deadlocking kernel + drivers from userspace. + +source "drivers/staging/android/ion/Kconfig" + +endif # if ANDROID endmenu |