Platform will be replaced into Component in the future.
snd_soc_platform_driver has snd_compr_ops, but snd_soc_component_driver
doesn't have. To prepare for replacing, this patch adds snd_compr_ops on
component driver.

platform will be replaced into component, and its code will be removed.
But during replacing, both platform and component process code exists.
To keep compatibility, to avoid platform NULL access and to avoid
platform/component duplicate operation during replacing process, this
patch has such code. Some of this code will be removed when platform was
removed.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

For dynamic compress rtd, the codec_dai may not have any actual
meaning(like snd-soc-dummy-dai), so compress id can just use the
value of dai_link->stream_name. But for others, its codec_dai
has actual meaning, so compress id can include codec_dai name.
Signed-off-by: NPeng Donglin <dolinux.peng@gmail.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Omit extra messages for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Link: http://events.linuxfoundation.org/sites/events/files/slides/LCJ16-Refactor_Strings-WSang_0.pdfSigned-off-by: NMarkus Elfring <elfring@users.sourceforge.net>
Signed-off-by: NMark Brown <broonie@kernel.org>

Currently compress driver hardcodes direction as playback to get
substream from the stream. This results in getting the incorrect
substream for compressed capture usecase.
To fix this, remove the hardcoding and derive substream based on
the stream direction.
Signed-off-by: NSatish Babu Patakokila <sbpata@codeaurora.org>
Signed-off-by: NBanajit Goswami <bgoswami@codeaurora.org>
Acked-By: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org

ASoC Compress ops have only platform ops and no DAI ops unlike PCM device
where we have both platform ops as well as DAI ops.

So add compress dai ops and add this new structure to the ASoC core to make
compressed devices a first class ASoC citizen

Again like PCM ops, drivers are free to implement either or both of
these ops based on device needs.
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

After we have called dpcm_path_get we should make sure to call
dpcm_path_put on all error paths. This was not happening causing the
allocated widget list to be leaked, this patch corrects this by adding a
dpcm_path_put to the error path.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Both soc_compr_pointer and the platform driver pointer callback return
ints but current soc_compr_pointer always returns 0. Update this so we
return the actual value from the platform driver callback. This doesn't
fix any issues simply makes the code more consistent.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

The detection of direction for compress was only taking into account codec
capabilities and not CPU ones. Fix this by checking the CPU side capabilities
as well

Cc: <stable@vger.kernel.org>
Tested-by: NAshish Panwar <ashish.panwar@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Make snd_compress_new take an id string (like snd_pcm_new).
This string can be included in the procfs info.

This patch also updates soc_new_compress() to create an ID
based on the stream and dai name, as done for PCM streams.
Signed-off-by: NRichard Fitzgerald <rf@opensource.wolfsonmicro.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

We don't always need soc-compress in soc, here add a config item
SND_SOC_COMPRESS, when nobody select it, the soc-compress will
not be compiled.

Here also change Kconfig to 'select SND_SOC_COMPRESS' for drivers
that needed soc-compress.
Signed-off-by: NJie Yang <yang.jie@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

In soc_new_compress() when rtd->dai_link->dynamic is set, we create the pcm
substreams with this call:

   ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num,
                                   1, 0, &be_pcm);

which passes 0 as capture_count leading to

   be_pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream

being NULL, hence when trying to set rtd a few lines below we get an oops.

Fix by using rtd->dai_link->dpcm_playback and rtd->dai_link->dpcm_capture as
playback_count and capture_count to snd_pcm_new_internal().
Signed-off-by: NQais Yousef <qais.yousef@imgtec.com>
Signed-off-by: NMark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org

The actions taken in both branches are identical, so we can simplify the
code. Spotted by Coverity.
Signed-off-by: NDaniel Mack <daniel@zonque.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

Fix double unlock of fe card mutex introduced by patch 8f70e515
"ASoC: soc-pcm: fix dpcm_path_get error handling"

The first unlock is at line 106, and the unlock is at line 149. we
should remove the first unlock.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NQiao Zhou <zhouqiao@marvell.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

dpcm_path_get may return -ENOMEM when allocating memory for list
fails. We should not keep processing path or start up dpcm dai in
this case.
Signed-off-by: NQiao Zhou <zhouqiao@marvell.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Multiple codecs does not make sense in the case of compressed
stream.

Exit with error if it happens.
Signed-off-by: NBenoit Cousson <bcousson@baylibre.com>
Tested-by: NLars-Peter Clausen <lars@metafoo.de>
Reviewed-by: NLars-Peter Clausen <lars@metafoo.de>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

The component struct already has a name and id field which are initialized to
the same values as the same fields in the CODEC and platform structs. So remove
them from the CODEC and platform structs and used the ones from the component
struct instead.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NMark Brown <broonie@linaro.org>

The return statement was not indented correctly.  I lined up the
condition a bit as well.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

This was initially removed in commit 6423c187 ("ASoC: Remove runtime field from
DAI"), but was, presumably by accident, brought back in commit f0fba2ad ("ASoC:
multi-component - ASoC Multi-Component Support"). But has never been
initialized to anything but NULL ever since. This commit removes it again.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NMark Brown <broonie@linaro.org>

We have the same code that increments and decrements the active field of the
various PCM runtime components (all with the same bugs). Factor this out into
common helper functions.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NMark Brown <broonie@linaro.org>

For CODEC to CODEC links we should only immediately power down if both CODECs
are configured to ignore the power down delay. Factor the logic for this
into a helper function that can be used for both compressed and normal PCMs.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NMark Brown <broonie@linaro.org>

Currently compressed audio streams are statically routed from the /dev
to the DAI link. Some DSPs can route compressed data to multiple BE DAIs
like they do for PCM data.

Add support to allow dynamically routed compressed streams using the existing
DPCM infrastructure. This patch adds special FE versions of the compressed ops
that work out the runtime routing.
Signed-off-by: NLiam Girdwood <liam.r.girdwood@linux.intel.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

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: NMark Brown <broonie@linaro.org>
Acked-by: NVinod Koul <vinod.koul@intel.com>

the compress metadata handlers were wrongly named sst_xxx
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@linaro.org>

Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

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: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NRichard Fitzgerald <rf@opensource.wolfsonmicro.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

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: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NRichard Fitzgerald <rf@opensource.wolfsonmicro.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

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: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Compress core added metadata apis in 9727b4, so add same in ASoC
Signed-off-by: NJeeja KP <jeeja.kp@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

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: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by Vinod Koul <vinod.koul@intel.com>
Acked-by: NLiam Girdwood <liam.r.girdwood@linux.intel.com>

Otherwise capture activity on a compressed DAI would mute any playback
on the same DAI.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Acked-by: NLiam Girdwood <liam.r.girdwood@linux.intel.com>

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: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Delayed work was scheduled but not initialised, this patch adds the
actual work and initialises it.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Tested-by: NJeeja KP <jeeja.kp@intel.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Use the pcm_mutex to serialise the compressed ops.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Tested-by: NJeeja KP <jeeja.kp@intel.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Tested-by: NJeeja KP <jeeja.kp@intel.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

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: NMisael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

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: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Reported-by: NFengguang Wu <wfg@linux.intel.com>
Signed-off-by: NNamarta Kohli <namartax.kohli@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

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: NNamarta Kohli <namartax.kohli@intel.com>
Signed-off-by: NRamesh Babu K V <ramesh.babu@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>