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<title>linux-toradex.git/include/sound/pcm.h, branch v2.6.36.3</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6</title>
<updated>2010-08-08T00:07:31+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2010-08-08T00:07:31+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=faa38b5e0e092914764cdba9f83d31a3f794d182'/>
<id>faa38b5e0e092914764cdba9f83d31a3f794d182</id>
<content type='text'>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (214 commits)
  ALSA: hda - Add pin-fix for HP dc5750
  ALSA: als4000: Fix potentially invalid DMA mode setup
  ALSA: als4000: enable burst mode
  ALSA: hda - Fix initial capsrc selection in patch_alc269()
  ASoC: TWL4030: Capture route runtime DAPM ordering fix
  ALSA: hda - Add PC-beep whitelist for an Intel board
  ALSA: hda - More relax for pending period handling
  ALSA: hda - Define AC_FMT_* constants
  ALSA: hda - Fix beep frequency on IDT 92HD73xx and 92HD71Bxx codecs
  ALSA: hda - Add support for HDMI HBR passthrough
  ALSA: hda - Set Stream Type in Stream Format according to AES0
  ALSA: hda - Fix Thinkpad X300 so SPDIF is not exposed
  ALSA: hda - FIX to not expose SPDIF on Thinkpad X301, since it does not have the ability to use SPDIF
  ASoC: wm9081: fix resource reclaim in wm9081_register error path
  ASoC: wm8978: fix a memory leak if a wm8978_register fail
  ASoC: wm8974: fix a memory leak if another WM8974 is registered
  ASoC: wm8961: fix resource reclaim in wm8961_register error path
  ASoC: wm8955: fix resource reclaim in wm8955_register error path
  ASoC: wm8940: fix a memory leak if wm8940_register return error
  ASoC: wm8904: fix resource reclaim in wm8904_register error path
  ...
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (214 commits)
  ALSA: hda - Add pin-fix for HP dc5750
  ALSA: als4000: Fix potentially invalid DMA mode setup
  ALSA: als4000: enable burst mode
  ALSA: hda - Fix initial capsrc selection in patch_alc269()
  ASoC: TWL4030: Capture route runtime DAPM ordering fix
  ALSA: hda - Add PC-beep whitelist for an Intel board
  ALSA: hda - More relax for pending period handling
  ALSA: hda - Define AC_FMT_* constants
  ALSA: hda - Fix beep frequency on IDT 92HD73xx and 92HD71Bxx codecs
  ALSA: hda - Add support for HDMI HBR passthrough
  ALSA: hda - Set Stream Type in Stream Format according to AES0
  ALSA: hda - Fix Thinkpad X300 so SPDIF is not exposed
  ALSA: hda - FIX to not expose SPDIF on Thinkpad X301, since it does not have the ability to use SPDIF
  ASoC: wm9081: fix resource reclaim in wm9081_register error path
  ASoC: wm8978: fix a memory leak if a wm8978_register fail
  ASoC: wm8974: fix a memory leak if another WM8974 is registered
  ASoC: wm8961: fix resource reclaim in wm8961_register error path
  ASoC: wm8955: fix resource reclaim in wm8955_register error path
  ASoC: wm8940: fix a memory leak if wm8940_register return error
  ASoC: wm8904: fix resource reclaim in wm8904_register error path
  ...
</pre>
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</content>
</entry>
<entry>
<title>pm_qos: Get rid of the allocation in pm_qos_add_request()</title>
<updated>2010-07-19T00:00:34+00:00</updated>
<author>
<name>James Bottomley</name>
<email>James.Bottomley@suse.de</email>
</author>
<published>2010-07-05T20:53:06+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=82f682514a5df89ffb3890627eebf0897b7a84ec'/>
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<content type='text'>
All current users of pm_qos_add_request() have the ability to supply
the memory required by the pm_qos routines, so make them do this and
eliminate the kmalloc() with pm_qos_add_request().  This has the
double benefit of making the call never fail and allowing it to be
called from atomic context.

Signed-off-by: James Bottomley &lt;James.Bottomley@suse.de&gt;
Signed-off-by: mark gross &lt;markgross@thegnar.org&gt;
Signed-off-by: Rafael J. Wysocki &lt;rjw@sisk.pl&gt;
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<pre>
All current users of pm_qos_add_request() have the ability to supply
the memory required by the pm_qos routines, so make them do this and
eliminate the kmalloc() with pm_qos_add_request().  This has the
double benefit of making the call never fail and allowing it to be
called from atomic context.

Signed-off-by: James Bottomley &lt;James.Bottomley@suse.de&gt;
Signed-off-by: mark gross &lt;markgross@thegnar.org&gt;
Signed-off-by: Rafael J. Wysocki &lt;rjw@sisk.pl&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'devel' of git://git.alsa-project.org/alsa-kernel into topic/misc</title>
<updated>2010-07-05T13:37:27+00:00</updated>
<author>
<name>Takashi Iwai</name>
<email>tiwai@suse.de</email>
</author>
<published>2010-07-05T13:37:27+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=65ee2ba3105f6ca3b8814d993682d4f21a1f0d8d'/>
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</pre>
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</entry>
<entry>
<title>ALSA: pcm_lib: avoid timing jitter in snd_pcm_read/write()</title>
<updated>2010-06-28T07:42:09+00:00</updated>
<author>
<name>David Dillow</name>
<email>dave@thedillows.org</email>
</author>
<published>2010-06-26T22:13:20+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=5daeba34d2aab669aea07abee13d53cd116578fb'/>
<id>5daeba34d2aab669aea07abee13d53cd116578fb</id>
<content type='text'>
When using poll() to wait for the next period -- or avail_min samples --
one gets a consistent delay for each system call that is usually just a
little short of the selected period time. However, When using
snd_pcm_read/write(), one gets a jittery delay that alternates between
less than a millisecond and approximately two period times. This is
caused by snd_pcm_lib_{read,write}1() transferring any available samples
to the user's buffer and adjusting the application pointer prior to
sleeping to the end of the current period. When the next period
interrupt occurs, there is then less than avail_min samples remaining to
be transferred in the period, so we end up sleeping until a second
period occurs.

This is solved by using runtime-&gt;twake as the number of samples needed
for a wakeup in addition to selecting the proper wait queue to wake in
snd_pcm_update_state(). This requires twake to be non-zero when used
by snd_pcm_lib_{read,write}1() even if avail_min is zero.

Signed-off-by: Dave Dillow &lt;dave@thedillows.org&gt;
Signed-off-by: Jaroslav Kysela &lt;perex@perex.cz&gt;
</content>
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<pre>
When using poll() to wait for the next period -- or avail_min samples --
one gets a consistent delay for each system call that is usually just a
little short of the selected period time. However, When using
snd_pcm_read/write(), one gets a jittery delay that alternates between
less than a millisecond and approximately two period times. This is
caused by snd_pcm_lib_{read,write}1() transferring any available samples
to the user's buffer and adjusting the application pointer prior to
sleeping to the end of the current period. When the next period
interrupt occurs, there is then less than avail_min samples remaining to
be transferred in the period, so we end up sleeping until a second
period occurs.

This is solved by using runtime-&gt;twake as the number of samples needed
for a wakeup in addition to selecting the proper wait queue to wake in
snd_pcm_update_state(). This requires twake to be non-zero when used
by snd_pcm_lib_{read,write}1() even if avail_min is zero.

Signed-off-by: Dave Dillow &lt;dave@thedillows.org&gt;
Signed-off-by: Jaroslav Kysela &lt;perex@perex.cz&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: pcm: Define G723 3-bit and 5-bit formats</title>
<updated>2010-05-31T07:10:03+00:00</updated>
<author>
<name>Ben Collins</name>
<email>bcollins@bluecherry.net</email>
</author>
<published>2010-05-28T15:43:45+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=15c0cee6c809a137e0fc7f1d2b0867cc03473c0c'/>
<id>15c0cee6c809a137e0fc7f1d2b0867cc03473c0c</id>
<content type='text'>
This defines the 24bps and 40bps (8khz sample rate) G.723 codec
formats. They are going to be used once I submit the driver for
an mpeg4/g723 compression card.

I've updated the signed value to -1 as per Takashi's comments
since these are non-linear formats.

Signed-off-by: Ben Collins &lt;bcollins@bluecherry.net&gt;
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
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<pre>
This defines the 24bps and 40bps (8khz sample rate) G.723 codec
formats. They are going to be used once I submit the driver for
an mpeg4/g723 compression card.

I've updated the signed value to -1 as per Takashi's comments
since these are non-linear formats.

Signed-off-by: Ben Collins &lt;bcollins@bluecherry.net&gt;
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>PM QOS update</title>
<updated>2010-05-10T21:08:19+00:00</updated>
<author>
<name>Mark Gross</name>
<email>mgross@linux.intel.com</email>
</author>
<published>2010-05-05T23:59:26+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=ed77134bfccf5e75b6cbadab268e559dbe6a4ebb'/>
<id>ed77134bfccf5e75b6cbadab268e559dbe6a4ebb</id>
<content type='text'>
This patch changes the string based list management to a handle base
implementation to help with the hot path use of pm-qos, it also renames
much of the API to use "request" as opposed to "requirement" that was
used in the initial implementation.  I did this because request more
accurately represents what it actually does.

Also, I added a string based ABI for users wanting to use a string
interface.  So if the user writes 0xDDDDDDDD formatted hex it will be
accepted by the interface.  (someone asked me for it and I don't think
it hurts anything.)

This patch updates some documentation input I got from Randy.

Signed-off-by: markgross &lt;mgross@linux.intel.com&gt;
Signed-off-by: Rafael J. Wysocki &lt;rjw@sisk.pl&gt;
</content>
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<pre>
This patch changes the string based list management to a handle base
implementation to help with the hot path use of pm-qos, it also renames
much of the API to use "request" as opposed to "requirement" that was
used in the initial implementation.  I did this because request more
accurately represents what it actually does.

Also, I added a string based ABI for users wanting to use a string
interface.  So if the user writes 0xDDDDDDDD formatted hex it will be
accepted by the interface.  (someone asked me for it and I don't think
it hurts anything.)

This patch updates some documentation input I got from Randy.

Signed-off-by: markgross &lt;mgross@linux.intel.com&gt;
Signed-off-by: Rafael J. Wysocki &lt;rjw@sisk.pl&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge remote branch 'alsa/devel' into topic/misc</title>
<updated>2010-01-26T17:13:04+00:00</updated>
<author>
<name>Takashi Iwai</name>
<email>tiwai@suse.de</email>
</author>
<published>2010-01-26T17:13:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=d0d2c38e3963f4f86a9e62d74f45a371458f2787'/>
<id>d0d2c38e3963f4f86a9e62d74f45a371458f2787</id>
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</pre>
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</entry>
<entry>
<title>ALSA: pcm_lib - return back hw_ptr_interrupt</title>
<updated>2010-01-26T16:50:50+00:00</updated>
<author>
<name>Jaroslav Kysela</name>
<email>perex@perex.cz</email>
</author>
<published>2010-01-26T16:08:24+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=e7636925789b042ff9d98c51d48392e8c5549480'/>
<id>e7636925789b042ff9d98c51d48392e8c5549480</id>
<content type='text'>
Clemens Ladisch noted for hw_ptr_removal in "cleanup &amp; merge hw_ptr
update functions" commit:

"It is possible for the status/delay ioctls to be called when the sound
card's pointer register alreay shows a position at the beginning of the
new period, but immediately before the interrupt is actually executed.
(This happens regularly on a SMP machine with mplayer.)  When that
happens, the code thinks that the position must be at least one period
ahead of the current position and drops an entire buffer of data."

Return back the hw_ptr_interrupt variable. The last interrupt pointer
is always computed from the latest hw_ptr instead of tracking it
separately (in this case all hw_ptr checks and modifications might
influence also hw_ptr_interrupt and it is difficult to keep it
consistent).

Signed-off-by: Jaroslav Kysela &lt;perex@perex.cz&gt;
</content>
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<pre>
Clemens Ladisch noted for hw_ptr_removal in "cleanup &amp; merge hw_ptr
update functions" commit:

"It is possible for the status/delay ioctls to be called when the sound
card's pointer register alreay shows a position at the beginning of the
new period, but immediately before the interrupt is actually executed.
(This happens regularly on a SMP machine with mplayer.)  When that
happens, the code thinks that the position must be at least one period
ahead of the current position and drops an entire buffer of data."

Return back the hw_ptr_interrupt variable. The last interrupt pointer
is always computed from the latest hw_ptr instead of tracking it
separately (in this case all hw_ptr checks and modifications might
influence also hw_ptr_interrupt and it is difficult to keep it
consistent).

Signed-off-by: Jaroslav Kysela &lt;perex@perex.cz&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'topic/noncached-mmap' into topic/misc</title>
<updated>2010-01-21T14:27:28+00:00</updated>
<author>
<name>Takashi Iwai</name>
<email>tiwai@suse.de</email>
</author>
<published>2010-01-21T14:27:28+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=6250b9ced23032789ca9739d6a53949637f9c836'/>
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<pre>
</pre>
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</content>
</entry>
<entry>
<title>Merge remote branch 'alsa/devel' into topic/misc</title>
<updated>2010-01-21T13:27:14+00:00</updated>
<author>
<name>Takashi Iwai</name>
<email>tiwai@suse.de</email>
</author>
<published>2010-01-21T13:27:14+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=8b296c8f9f660b70e958e6e6b9b4293e6ae854f2'/>
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