Commit Graph

18 Commits

Author SHA1 Message Date
Mark Brown 3d24cfe485 ASoC: compress: Use power efficient workqueue
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>
2013-08-12 11:04:54 +01:00
Vinod Koul 02bd90e86d ASoC: compress: use soc_xxx handlers for metadata
the compress metadata handlers were wrongly named sst_xxx

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-07-28 18:13:19 +01:00
Charles Keepax 2c071ed7c3 ASoC: soc-compress: Send correct stream event for capture start
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-05-20 08:01:48 -05:00
Charles Keepax daa2db59ce ASoC: soc-compress: Deduce stream direction
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>
2013-04-21 09:53:43 +02:00
Charles Keepax 4daf891cde ALSA: compress_core: Deconstify copy callback buffer
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>
2013-04-21 09:53:00 +02:00
Mark Brown 54b019cbd9 Merge remote-tracking branch 'asoc/topic/compress' into asoc-next 2013-04-12 13:56:57 +01:00
Charles Keepax fa40ef208c ASoC: compress: Cancel delayed power down if needed
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>
2013-03-28 00:23:56 +00:00
Jeeja KP 36953d9814 ASoC: compress - add support for metadata apis
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>
2013-03-26 17:46:33 +00:00
Mark Brown da18396f94 ASoC: core: Allow digital mute for capture
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>
2013-02-08 11:08:44 +00:00
Mark Brown e38b9b7478 ASoC: compress: Only mute playback streams
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>
2013-02-07 18:41:50 +00:00
Charles Keepax 1f88eb0f06 ASoC: soc-compress: Add support for not memory mapped DSPs
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>
2013-02-05 13:55:52 +00:00
Charles Keepax 202c8f7082 ASoC: soc-compress: Initialise delayed work to power down audio
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>
2013-01-24 18:53:43 +08:00
Charles Keepax 15e2e6194a ASoC: soc-compress: Serialise compressed ops
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>
2013-01-24 18:53:34 +08:00
Charles Keepax 8c3d2aa4cf ASoC: soc-compress: Add missing brackets around else
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>
2013-01-24 18:53:18 +08:00
Misael Lopez Cruz 9bffb1fb7c ASoC: Prevent pop_wait overwrite
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>
2012-12-15 23:45:09 +09:00
Sachin Kamat 1be437fa53 ASoC: soc-compress: Remove unused variable
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>
2012-08-21 15:09:44 +01:00
Vinod Koul 9d2667a910 ASoC: compress - fix code alignment
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>
2012-08-21 15:09:44 +01:00
Namarta Kohli 1245b7005d ASoC: add compress stream support
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>
2012-08-20 20:50:38 +01:00