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path: root/sound/soc/soc-compress.c
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2013-12-17ASoC: compress: Use power efficient workqueuev3.10/topic/pe-wqMark Brown
There is no need for the power down work to be done on a per CPU workqueue especially considering the fairly long delay before powerdown. Signed-off-by: Mark Brown <broonie@linaro.org> Acked-by: Vinod Koul <vinod.koul@intel.com> (cherry picked from commit 3d24cfe485e2750cc209a77dd62fa1fe004fc6c7)
2013-05-20ASoC: soc-compress: Send correct stream event for capture startCharles Keepax
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-04-21ASoC: soc-compress: Deduce stream directionCharles Keepax
Previously we just hard coded all streams as playback streams, this patch checks the DAI to see if it is a capture or playback stream. It is worth noting that at this time only unidirectional streams are supported. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-04-21ALSA: compress_core: Deconstify copy callback bufferCharles Keepax
The buffer passed to the copy callback should not be const because the copy callback can be used for capture and playback. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-04-12Merge remote-tracking branch 'asoc/topic/compress' into asoc-nextMark Brown
2013-03-28ASoC: compress: Cancel delayed power down if neededCharles Keepax
When a new stream is being opened it is necessary to cancel any delayed power down of the audio. [Fixed unused variable -- broonie] Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-26ASoC: compress - add support for metadata apisJeeja KP
Compress core added metadata apis in 9727b4, so add same in ASoC Signed-off-by: Jeeja KP <jeeja.kp@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-08ASoC: core: Allow digital mute for captureMark Brown
Help avoid noise from the power up of the capture path propagating through into the start of the recording (especially noise caused by the ramp of microphone biases) by keeping the capture muted until after we've finished powering things up with DAPM in the same manner we do for playback. This allows us to take advantage of soft mute support in the hardware more effectively and is more consistent. The core code using the existing digital mute operation is updated to take advantage of this. Some additional cases in the soc-pcm code and suspend will need separate handling but these are less practically relevant than the main runtime stream start/stop case. Rather than refactor the digital mute function in every single driver a new operation is added for drivers taking advantage of this functionality, the old operation should be phased out over time. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by Vinod Koul <vinod.koul@intel.com> Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
2013-02-07ASoC: compress: Only mute playback streamsMark Brown
Otherwise capture activity on a compressed DAI would mute any playback on the same DAI. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
2013-02-05ASoC: soc-compress: Add support for not memory mapped DSPsCharles Keepax
The ASoC compressed API did not implement the copy callback in its compressed ops which is required for DSPs that are not memory mapped. This patch creates a local copy of the compress ops for each runtime and modifies them with a copy callback as appropriate. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-24ASoC: soc-compress: Initialise delayed work to power down audioCharles Keepax
Delayed work was scheduled but not initialised, this patch adds the actual work and initialises it. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Tested-by: Jeeja KP <jeeja.kp@intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-24ASoC: soc-compress: Serialise compressed opsCharles Keepax
Use the pcm_mutex to serialise the compressed ops. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Tested-by: Jeeja KP <jeeja.kp@intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-24ASoC: soc-compress: Add missing brackets around elseCharles Keepax
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Tested-by: Jeeja KP <jeeja.kp@intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-12-15ASoC: Prevent pop_wait overwriteMisael Lopez Cruz
pop_wait is used to determine if a deferred playback close needs to be cancelled when the a PCM is open or if after the power-down delay expires it needs to run. pop_wait is associated with the CODEC DAI, so the CODEC DAI must be unique. This holds true for most CODECs, except for the dummy CODEC and its DAI. In DAI links with non-unique dummy CODECs (e.g. front-ends), pop_wait can be overwritten by another DAI link using also a dummy CODEC. Failure to cancel a deferred close can cause mute due to the DAPM STOP event sent in the deferred work. One scenario where pop_wait is overwritten and causing mute is below (where hw:0,0 and hw:0,1 are two front-ends with default pmdown_time = 5 secs): aplay /dev/urandom -D hw:0,0 -c 2 -r 48000 -f S16_LE -d 1 sleep 1 aplay /dev/urandom -D hw:0,1 -c 2 -r 48000 -f S16_LE -d 3 & aplay /dev/urandom -D hw:0,0 -c 2 -r 48000 -f S16_LE Since CODECs may not be unique, pop_wait is moved to the PCM runtime structure. Creating separate dummy CODECs for each DAI link can also solve the problem, but at this point it's only pop_wait variable in the CODEC DAI that has negative effects by not being unique. Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-21ASoC: soc-compress: Remove unused variableSachin Kamat
codec_dai is not used in the function. sound/soc/soc-compress.c: In function ‘soc_compr_set_params’: sound/soc/soc-compress.c:156:22: warning: unused variable ‘codec_dai’ [-Wunused-variable] Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-21ASoC: compress - fix code alignmentVinod Koul
Reported-by: Fengguang Wu <wfg@linux.intel.com> Signed-off-by: Namarta Kohli <namartax.kohli@intel.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-20ASoC: add compress stream supportNamarta Kohli
This patch adds the support to parse the compress dai's and then also adds the soc-compress.c file while handles the compress stream operations, mostly analogus to what is done in the soc-pcm.c and aditional handling of the compress opertaions Signed-off-by: Namarta Kohli <namartax.kohli@intel.com> Signed-off-by: Ramesh Babu K V <ramesh.babu@intel.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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