linux-stable.git/include/sound/sof/dai.h, branch v5.16.2

ASoC: SOF: dai: include new flags for DAI_CONFIG

2021-10-05T12:08:11+00:00

Mirror changes done in SOF tree. The changes do not rely on
BIT/GENMASK on purpose to keep the structure and flags common with the
firmware tree.

The DAI_CONFIG IPC is currently used in multiple ways. It is sent to
the DSP firmware when enabling static or dynamic pipelines, in
hw_params or prepare callbacks for Intel SSP, HDaudio and ALH, on
trigger_stop and hw_free.

This IPC has been abused a bit in the past, i.e. the values used for
some of the DAI-specific fields are used to either allocate or free
resources. Two typical examples are Intel HDaudio and SoundWire/ALH
DAIs, where using a zero DMA channel number or stream tag signals to
the firmware the DMA channels or tags allocated earlier can be freed.

Rather than add a new IPC for 'hw_params' and 'hw_free', this patch
suggests supporting a 2-bit value conveying the 'stage' information in
an existing IPC structure. Only 3 possible values are used.

The mapping between HW_PARAMS and HW_FREE flags and ALSA definitions
is not strictly 1:1, e.g. in some cases the HW_PARAM flag might be set
during the .prepare callback, while the HW_FREE might be sent during the
ALSA .trigger for stop/suspend.

The semantics of the flags is to reserve and start/stop all needed
resources, typically hardware related such as DMAs or clocks, when the
HW_PARAMS is set, while the HW_FREE flag allows the firmware to
release the resources allocated. The data transfers are still
controlled within the firmware through the propagation of the trigger
command.

The driver can then pass information that the DAI_CONFIG was invoked
in e.g. a pipeline/DAI setup, hw_params or hw_free stage without
having to use a special DAI-specific encoding. Unfortunately we can't
remove old encodings due to backwards-compatibility requirements but
for new cases, such as the SSP in follow-up patches, we can make the
IPC less cryptic.

This change is tagged as ABI 3.19 and is completely backwards compatible.

Signed-off-by: Pierre-Louis Bossart
Reviewed-by: Bard Liao
Reviewed-by: Guennadi Liakhovetski
Reviewed-by: Brent Lu
Link: https://lore.kernel.org/r/20211004171430.103674-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown

ASoC: SOF: dai: mirror group_id definition added in firmware

2021-10-05T12:08:10+00:00

This was added in ABI 3.17 but never added to the kernel tree. The
group_id is not currently used but this patch is required before
additional changes.

Signed-off-by: Pierre-Louis Bossart 
Reviewed-by: Bard Liao 
Reviewed-by: Guennadi Liakhovetski 
Reviewed-by: Brent Lu 
Link: https://lore.kernel.org/r/20211004171430.103674-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown

ASoC: SOF: use inclusive language for bclk and fsync

2020-11-13T14:22:06+00:00

Mirror alsa-lib definitions w/ codec_provider (CP) and
codec_consumer (CC).

Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20201112163100.5081-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown

ASoC: SOF/Intel: clarify SPDX license with GPL-2.0-only

2020-05-01T16:45:24+00:00

Remove the ambiguity with GPL-2.0 and use an explicit GPL-2.0-only
tag.

Signed-off-by: Pierre-Louis Bossart 
Reviewed-by: Daniel Baluta 
Reviewed-by: Kai Vehmanen 
Reviewed-by: Guennadi Liakhovetski 
Link: https://lore.kernel.org/r/20200501145850.15178-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown

ASoC: SOF: imx: Describe SAI parameters to be sent to DSP

2019-12-18T19:54:07+00:00

Introduce sof_ipc_dai_sai_params to keep information that
we get from topology and we send to DSP FW.
For the moment it is identical to ESAI one but it will
evolve shortly independently

Signed-off-by: Guido Roncarolo 
Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20191218002616.7652-8-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown

ASoC: SOF: imx: Describe ESAI parameters to be sent to DSP

2019-10-10T14:15:44+00:00

Introduce sof_ipc_dai_esai_params to keep information that
we get from topology and we send to DSP FW.

Also bump the ABI minor to reflect the changes on DSP FW.

Signed-off-by: Daniel Baluta 
Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20191008164443.1358-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown

Merge branch 'asoc-5.4' into asoc-next

2019-09-09T13:55:20+00:00

ASoC: SOF: rename SOUNDWIRE to ALH

2019-08-16T12:13:21+00:00

Rename SOUNDWIRE to ALH.

Signed-off-by: Bard liao 
Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20190815192018.30570-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown

ASoC: SOF: topology: Add dummy support for i.MX8 DAIs

2019-08-16T12:13:02+00:00

Add dummy support for SAI/ESAI digital audio interface
IPs found on i.MX8 boards.

Signed-off-by: Daniel Baluta 
Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20190815192018.30570-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown

ASoC: SOF: ipc: add ALH parameters

2019-08-15T16:55:02+00:00

The only configuration parameter is the ALH stream ID. No range
checking is done by the driver, the firmware should check that the
stream is valid for a specific hardware.

Bump the ABI Minor number to keep the alignment with SOF firmware

Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20190815155032.29181-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown