rfkill: rewrite
This patch completely rewrites the rfkill core to address
the following deficiencies:
* all rfkill drivers need to implement polling where necessary
rather than having one central implementation
* updating the rfkill state cannot be done from arbitrary
contexts, forcing drivers to use schedule_work and requiring
lots of code
* rfkill drivers need to keep track of soft/hard blocked
internally -- the core should do this
* the rfkill API has many unexpected quirks, for example being
asymmetric wrt. alloc/free and register/unregister
* rfkill can call back into a driver from within a function the
driver called -- this is prone to deadlocks and generally
should be avoided
* rfkill-input pointlessly is a separate module
* drivers need to #ifdef rfkill functions (unless they want to
depend on or select RFKILL) -- rfkill should provide inlines
that do nothing if it isn't compiled in
* the rfkill structure is not opaque -- drivers need to initialise
it correctly (lots of sanity checking code required) -- instead
force drivers to pass the right variables to rfkill_alloc()
* the documentation is hard to read because it always assumes the
reader is completely clueless and contains way TOO MANY CAPS
* the rfkill code needlessly uses a lot of locks and atomic
operations in locked sections
* fix LED trigger to actually change the LED when the radio state
changes -- this wasn't done before
Tested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> [thinkpad]
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 284ebac..c682ac5 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -21,7 +21,7 @@
depends on NEW_LEDS
depends on BACKLIGHT_CLASS_DEVICE
depends on SERIO_I8042
- depends on RFKILL
+ depends on RFKILL || RFKILL = n
select ACPI_WMI
---help---
This is a driver for newer Acer (and Wistron) laptops. It adds
@@ -60,7 +60,7 @@
depends on DCDBAS
depends on EXPERIMENTAL
depends on BACKLIGHT_CLASS_DEVICE
- depends on RFKILL
+ depends on RFKILL || RFKILL = n
depends on POWER_SUPPLY
default n
---help---
@@ -117,7 +117,7 @@
tristate "HP WMI extras"
depends on ACPI_WMI
depends on INPUT
- depends on RFKILL
+ depends on RFKILL || RFKILL = n
help
Say Y here if you want to support WMI-based hotkeys on HP laptops and
to read data from WMI such as docking or ambient light sensor state.
@@ -196,14 +196,13 @@
tristate "ThinkPad ACPI Laptop Extras"
depends on ACPI
depends on INPUT
+ depends on RFKILL || RFKILL = n
select BACKLIGHT_LCD_SUPPORT
select BACKLIGHT_CLASS_DEVICE
select HWMON
select NVRAM
select NEW_LEDS
select LEDS_CLASS
- select NET
- select RFKILL
---help---
This is a driver for the IBM and Lenovo ThinkPad laptops. It adds
support for Fn-Fx key combinations, Bluetooth control, video
@@ -338,9 +337,9 @@
depends on ACPI
depends on INPUT
depends on EXPERIMENTAL
+ depends on RFKILL || RFKILL = n
select BACKLIGHT_CLASS_DEVICE
select HWMON
- select RFKILL
---help---
This driver supports the Fn-Fx keys on Eee PC laptops.
It also adds the ability to switch camera/wlan on/off.
@@ -405,9 +404,8 @@
tristate "Toshiba Laptop Extras"
depends on ACPI
depends on INPUT
+ depends on RFKILL || RFKILL = n
select INPUT_POLLDEV
- select NET
- select RFKILL
select BACKLIGHT_CLASS_DEVICE
---help---
This driver adds support for access to certain system settings
