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

Conflicts:
	sound/soc/soc-core.c

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>
ASoc: fix compilation error

Fix compilation error after merging commit 1245b700
from master: snd_soc_dapm_stream_event() protoype has changed.

Signed-off-by: Eric Laurent <elaurent@google.com>
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>
ASoC: soc-compress: Add missing brackets around else

Conflicts:
	sound/soc/soc-compress.c

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>
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>
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>
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>
ASoc: fix compilation error

Fix compilation error after merging commit 1f88eb0
from master: pop_wait is in struct snd_soc_dai
not in struct snd_soc_pcm_runtime.

Signed-off-by: Eric Laurent <elaurent@google.com>
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>
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>
ASoc: fix compilation error

Fix compilation error after merging commit 00642f5
from master: pop_wait is in struct snd_soc_dai
not in struct snd_soc_pcm_runtime.

Signed-off-by: Eric Laurent <elaurent@google.com>
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>
ALSA: compress: add support for gapless playback

this add new API for sound compress to support gapless playback.
As noted in Documentation change, we add API to send metadata of encoder and
padding delay to DSP. Also add API for indicating EOF and switching to
subsequent track

Also bump the compress API version

Conflicts:
	include/uapi/sound/compress_offload.h

Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Conflicts:
	include/sound/compress_offload.h
ASoC: add definations for compressed operations

Here we update the asoc structures to add compress stream definations
First the struct snd_soc_dai_driver adds a new member to indicate if the dai is
compressed or pcm. Next we add a new structre the struct snd_soc_compr_ops in
the struct snd_soc_dai_link. This is to be used for machine driver to perform
any opertaions required for setting up compressed audio streams

next is the compressed data operations, they are added using struct
snd_compr_ops in the struct snd_soc_platform_driver.

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>
ASoC: compress: Add suport for DPCM into compressed audio

Allow compressed audio streams to traverse the DAPM graph of DAIs
like PCM streams.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
ASoC: DPCM: make some DPCM API calls non static for compressed usage

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
ASoC: core: Update FE dpcm state to trigger BE routing

Ensure the FE dpcm runtime_update is set properly in order
to trigger BE open, prepare and start.

Signed-off-by: Ravi Kumar Alamanda <ralama@codeaurora.org>
Signed-off-by: Eric Laurent <elaurent@google.com>
Adjust refcounts for FE Dai links in SOC compress framework

Signed-off-by: Haynes Mathew George <hgeorge@codeaurora.org>
ASoC: compress: dont aquire lock for draining states

Both draining and partial draning states will take a while getting executed. The
lock aquired will block the other operations like pause, stop etc which are
perfectly valid cmds during these states. So don't use mutex while invoking DSP
for these ops.

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Eric Laurent <elaurent@google.com>
ASoC: msm: Implement platform driver for compress audio playback

Compress platform driver implementation as per compress offload
ALSA framework.
Update the FE DAI link with the new platform name.
Update the device tree to include the new platform driver.

Signed-off-by: Ravi Kumar Alamanda <ralama@codeaurora.org>
Signed-off-by: Eric Laurent <elaurent@google.com>