Commit Graph

20 Commits

Author SHA1 Message Date
Rafael J. Wysocki 3a2d5b7001 PM: Introduce PM_EVENT_HIBERNATE callback state
During the last step of hibernation in the "platform" mode (with the
help of ACPI) we use the suspend code, including the devices'
->suspend() methods, to prepare the system for entering the ACPI S4
system sleep state.

But at least for some devices the operations performed by the
->suspend() callback in that case must be different from its operations
during regular suspend.

For this reason, introduce the new PM event type PM_EVENT_HIBERNATE and
pass it to the device drivers' ->suspend() methods during the last phase
of hibernation, so that they can distinguish this case and handle it as
appropriate.  Modify the drivers that handle PM_EVENT_SUSPEND in a
special way and need to handle PM_EVENT_HIBERNATE in the same way.

These changes are necessary to fix a hibernation regression related
to the i915 driver (ref. http://lkml.org/lkml/2008/2/22/488).

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Tested-by: Jeff Chua <jeff.chua.linux@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 10:40:04 -08:00
Oliver Pinter 1dbede8714 typo fix in net/rfkill/rfkill.c
Signed-off-by: Oliver Pinter <oliver.pntr@gmail.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03 17:55:45 +02:00
Iñaky Pérez-González 303d9bf6bb rfkill: add the WiMAX radio type
Teach rfkill about wimax radios.

Had to define a KEY_WIMAX as a 'key for disabling only wimax radios',
as other radio technologies have. This makes sense as hardware has
specific keys for disabling specific radios.

The RFKILL enabling part is, otherwise, a copy and paste of any other
radio technology.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-31 19:26:46 -08:00
Eric Paris 632041f306 rfkill: call rfkill_led_trigger_unregister() on error
Code inspection turned up that error cases in rfkill_register() do not
call rfkill_led_trigger_unregister() even though we have already
registered.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-01-20 20:31:36 -08:00
Michael Buesch 7f4c534178 rfkill: fix double-mutex-locking
rfkill_toggle_radio is called from functions where
rfkill->mutex is already aquired.

Remove the lock from rfkill_toggle_radio() and add it to
the only calling function that calls it without the lock held.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-11-29 18:08:48 -05:00
Michael Buesch 2736622344 rfkill: Fix sparse warning
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-11-10 22:00:28 -08:00
Michael Buesch 7319f1e6bc rfkill: Use mutex_lock() at register and add sanity check
Replace mutex_lock_interruptible() by mutex_lock() in rfkill_register(),
as interruptible doesn't make sense there.

Add a sanity check for rfkill->type, as that's used for an unchecked dereference
in an array and might cause hard to debug crashes if the driver sets this
to an invalid value.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-11-10 22:00:15 -08:00
Michael Buesch 2bf236d55e rfkill: Use subsys_initcall
We must use subsys_initcall, because we must initialize before a
driver calls rfkill_register().

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-11-10 21:59:33 -08:00
Michael Buesch 8a8f1c0437 rfkill: Register LED triggers before registering switch
Registering the switch triggers a LED event, so we must register
LED triggers before the switch.
This has a potential to fix a crash, depending on how the device
driver initializes the rfkill data structure.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-11-10 21:59:11 -08:00
Jiri Slaby 7b19ada2ed get rid of input BIT* duplicate defines
get rid of input BIT* duplicate defines

use newly global defined macros for input layer. Also remove includes of
input.h from non-input sources only for BIT macro definiton. Define the
macro temporarily in local manner, all those local definitons will be
removed further in this patchset (to not break bisecting).
BIT macro will be globally defined (1<<x)

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: <dtor@mail.ru>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Cc: <lenb@kernel.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Cc: <perex@suse.cz>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: <vernux@us.ibm.com>
Cc: <malattia@linux.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:42 -07:00
Michael Buesch 20405c0841 [RFKILL]: Add support for hardware-only rfkill buttons
Buttons that work directly on hardware cannot support
the "user_claim" functionality. Add a flag to signal
this and return -EOPNOTSUPP in this case.
b43 is such a device.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:54:11 -07:00
Michael Buesch 135900c182 [RFKILL]: Add support for an rfkill LED.
This adds a LED trigger.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:54:10 -07:00
Ivo van Doorn fe242cfd33 [RFKILL]: Move rfkill_switch_all out of global header
rfkill_switch_all shouldn't be called by drivers directly,
instead they should send a signal over the input device.

To prevent confusion for driver developers, move the
function into a rfkill private header.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:53:29 -07:00
Ivo van Doorn e0665486b7 [RFKILL]: Add support for ultrawideband
This patch will add support for UWB keys to rfkill,
support for this has been requested by Inaky.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:49:23 -07:00
Ivo van Doorn 234a0ca6f1 [RFKILL]: Remove IRDA
As Dmitry pointed out earlier, rfkill-input.c
doesn't support irda because there are no users
and we shouldn't add unrequired KEY_ defines.

However, RFKILL_TYPE_IRDA was defined in the
rfkill.h header file and would confuse people
about whether it is implemented or not.

This patch removes IRDA support completely,
so it can be added whenever a driver wants the
feature.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:49:23 -07:00
YOSHIFUJI Hideaki 2b81bff416 [NET] RFKILL: Fix whitespace errors.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2007-07-19 10:44:38 +09:00
Ivo van Doorn c81de6addb [RFKILL]: Make state sysfs writable
The rfkill state Sysfs attribute should be made writable,
we already pass the argument for the store handler,
so we only need to update the permissions flag.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-18 15:38:03 -07:00
Ingo Molnar e6c9116d1d [RFKILL]: fix net/rfkill/rfkill-input.c bug on 64-bit systems
Subject: [patch] net/input: fix net/rfkill/rfkill-input.c bug on 64-bit systems

this recent commit:

 commit cf4328cd94
 Author: Ivo van Doorn <IvDoorn@gmail.com>
 Date:   Mon May 7 00:34:20 2007 -0700

     [NET]: rfkill: add support for input key to control wireless radio

added this 64-bit bug:

        ....
	unsigned int flags;
 
 	spin_lock_irqsave(&task->lock, flags);
        ....

irq 'flags' must be unsigned long, not unsigned int. The -rt tree has 
strict checks about this on 64-bit so this triggered a build failure. 

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-14 18:50:15 -07:00
Ivo van Doorn d007da1fa6 [RFKILL]: Fix check for correct rfkill allocation
coverity has spotted a bug in rfkill.c (bug id #1627),
in rfkill_allocate() NULL was returns if the kzalloc() works,
and deref the NULL pointer if it fails,

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-19 12:24:39 -07:00
Ivo van Doorn cf4328cd94 [NET]: rfkill: add support for input key to control wireless radio
The RF kill patch that provides infrastructure for implementing
switches controlling radio states on various network and other cards.

[dtor@insightbb.com: address review comments]
[akpm@linux-foundation.org: cleanups, build fixes]

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-07 00:34:20 -07:00