Commit Graph

20 Commits

Author SHA1 Message Date
Tejun Heo
5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00
Takashi Iwai
54f7190b23 ALSA: hda - Fix Oops at reloading beep devices
The recent change for supporting dynamic beep device allocation caused
a problem resulting in Oops at reloading the driver.  Also, it ignores
the error from input device registration.

This patch fixes the wrong check in snd_hda_detach_beep_device(), and
returns an error when the input device registration fails properly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-27 13:34:01 +01:00
Takashi Iwai
411fe85c76 ALSA: hda - Don't cache beep controls
The beep control verbs don't need to be cached for resume.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-27 10:44:02 +01:00
Takashi Iwai
9bb1fe390d ALSA: hda - Fix beep_mode option value
The beep_mode option value was wrongly defined: it must be 0 = off and
1 = on.

Also, evaluate the beep_mode value at snd_hda_attach_beep_device()
properly so that no device is created when beep_mode=0 is given.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-16 15:33:49 +01:00
Jaroslav Kysela
2dca0bba70 ALSA: hda - add beep_mode module parameter
The beep_mode parameter for snd-hda-intel module allows to choose among
different digital beep device registation to the input layer.

0 = do not register to the input layer
1 = register to the input layer all time
2 = use "Beep Switch" control exported to user space mixer applications

Also, introduce CONFIG_SND_HDA_INPUT_BEEP_MODE for default value.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-16 11:35:10 +01:00
Jaroslav Kysela
5f81669750 ALSA: hda: beep - add missing cancel_delayed_work
The unregister work should be also canceled in snd_hda_detach_beep_device()
function.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-16 11:35:05 +01:00
Jaroslav Kysela
13dab0808b ALSA: hda_intel: Digital PC Beep - delay input device unregistration
The massive register/unregister calls for input device layer might be
overkill. Delay unregister call by one HZ as workaround.

Also, as benefit, beep->enabled variable is changed immediately now
(not from workqueue).

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-16 11:35:00 +01:00
Jaroslav Kysela
123c07aedd ALSA: hda_intel: Digital PC Beep - change behaviour for input layer
Original implementation was keeping registered input device for SND_BEEP
and SND_TONE events all time. This patch changes this behaviour:
If digital PC Beep is turned off using universal control switch,
the input device is unregistered.

Explanation: The kd_mksound() send SND_BEEP and SND_TONE only to last
registered device acceping those events. It means that the HDA Intel
audio driver blocks also the internal PC Speaker device (pcspkr.c
driver) even if the HDA Beep is muted. The user can easy disable
all beeps using 'setterm -blength 0' or 'xset b off' command.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-16 11:34:41 +01:00
Takashi Iwai
305355aad8 Merge branch 'fix/hda' into topic/hda
Conflicts:
	sound/pci/hda/patch_realtek.c

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-07-09 18:48:38 +02:00
Paul Vojta
369693dc93 ALSA: hda - fix beep tone calculation for IDT/STAC codecs
In the beep tone calculation for IDT/STAC codecs, lower numbers correspond
to higher frequencies and vice versa.  The current code has this backwards,
resulting in beep frequencies which are way too high (and sound bad on
tinny laptop speakers, resulting in complaints).

[Also added hz <= 0 check by tiwai]

Signed-off-by: Paul Vojta <vojta@math.berkeley.edu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-07-09 09:14:29 +02:00
Takashi Iwai
b7b51141b4 ALSA: hda - Check "beep" hint
Check the hint "beep" in snd_hda_attach_beep_device() to avoid the beep
device creation if user doesn't want.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-06-29 08:37:00 +02:00
Takashi Iwai
fa79796631 ALSA: hda - Fix digital beep tone calculation
The digital beep tone is calculated in two different ways depending
on the codec chip.  The standard one is using a divider, and another
one is a linear tone for IDT/STAC codecs.  Currently, only the
latter type is used for all codecs, which resulted in a wrong tone
pitch.

This patch adds the calculation of the standard HD-audio type.
Also clean-up the fields in hda_beep struct.

Reference: bko#13162
	http://bugzilla.kernel.org/show_bug.cgi?id=13162

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-05-19 12:54:55 +02:00
Takashi Iwai
c44765b8c8 ALSA: hda - Clear codec->beep at release
Clear codec->beep field in snd_hda_detach_beep_device() to be sure.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-02-06 16:48:10 +01:00
Takashi Iwai
6acaed38a3 ALSA: hda - Use own workqueue
snd-hda-intel driver used schedule_work() fot the delayed DMA pointer
updates, but this has several potential problems:
- it may block other eventsd works longer
- it may deadlock when probing fails and flush_scheduled_work() is
  called during probe callback (as probe callback itself could be
  invoked from eventd)

This patch adds an own workq for each driver instance to solve these
problems.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-01-12 10:33:56 +01:00
Takashi Iwai
ff7a326736 ALSA: hda - Don't export symbols when built-in kernel
The global functions in hda_codec.c and other core parts are only
for HD-audio codec and controller drivers.  When the HD-audio driver
is built in kernel, all stuff have to be statically linked, thus
we don't need any exports.

This patch introduces a conditional macro to do export only
when needed.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-28 15:22:02 +01:00
Takashi Iwai
1289e9e8b4 ALSA: hda - Modularize HD-audio driver
Split the monolithc HD-audio driver into several pieces:
 - snd-hda-intel   HD-audio PCI controller driver; loaded via udev
 - snd-hda-codec   HD-audio codec bus driver
 - snd-hda-codec-* Specific HD-audio codec drivers

When built as modules, snd-hda-codec (that is invoked by snd-hda-intel)
looks up the codec vendor ID and loads the corresponding codec module
automatically via request_module().

When built in a kernel, each codec drivers are statically hooked up
before probing the PCI.

This patch adds appropriate EXPORT_SYMBOL_GPL()'s and the module
information for each driver, and driver-linking codes between
codec-bus and codec drivers.

TODO:
  - Avoid EXPORT_SYMBOL*() when built-in kernel
  - Restore __devinit appropriately depending on the condition

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-27 15:47:11 +01:00
Takashi Iwai
6a12afb564 ALSA: hda - Missing NULL check in hda_beep.c
Added a NULL check of input_allocate_device() in hda_beep.c.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-13 14:37:16 +01:00
Takashi Iwai
4d4e9bb339 ALSA: hda - Add digital beep playback switch for STAC/IDT codecs
The digital beep widget may have no mute control, and always enabling
the beep is ofen pretty annoying, especially on laptops.

This patch adds a mixer control "PC Beep Playback Switch" when there
is no mixer amp mute is found, and controls it on software.

Reference: Novell bnc#444572
	https://bugzilla.novell.com/show_bug.cgi?id=444572

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-11-13 14:37:14 +01:00
Takashi Iwai
f6154d6d00 ALSA: hda - use input_free_device()
Use input_free_devce() correctly instead of kfree() at error path.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-07-29 21:32:08 +02:00
Matthew Ranostay
1cd2224cd0 ALSA: hda: digital pc-beep support hd-audio codecs
Added digital pc-beep support using linear tone generation for hd-codecs along
with initial support for several IDT codecs.

Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-07-20 19:17:49 +02:00