linux/include/sound/sdca_function.h, branch v6.15

ASoC: SDCA: Add support for GE Entity properties

2025-03-16T23:27:58Z

Add support for parsing the Group Entity properties from DisCo/ACPI. Group Entities allow control of several other Entities, typically Selector Units, from a single control. Signed-off-by: Charles Keepax Link: https://patch.msgid.link/20250312172205.4152686-7-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown

ASoC: SDCA: Add SDCA Control Range data access helper

2025-03-16T23:27:57Z

SDCA Ranges are two dimensional arrays of data associated with controls, add a helper to provide an x,y access mechanism to the data and a helper to locate a specific value inside a range. Signed-off-by: Charles Keepax Link: https://patch.msgid.link/20250312172205.4152686-6-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown

ASoC: SDCA: Add type flag for Controls

2025-03-16T23:27:56Z

SDCA Controls come in a variety of data formats, to simplify later parsing work out this data type as the control is parsed and stash it for later use. Signed-off-by: Charles Keepax Link: https://patch.msgid.link/20250312172205.4152686-5-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown

ASoC: SDCA: Add support for PDE Entity properties

2025-02-07T17:34:09Z

Add support for parsing the Power Domain Entity properties from DisCo/ACPI. Signed-off-by: Charles Keepax Reviewed-by: Pierre-Louis Bossart Link: https://patch.msgid.link/20250205113801.3699902-11-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown

ASoC: SDCA: Add support for clock Entity properties

2025-02-07T17:34:08Z

Add support for parsing the Clock Source Entity properties from DisCo/ACPI. Signed-off-by: Charles Keepax Reviewed-by: Pierre-Louis Bossart Link: https://patch.msgid.link/20250205113801.3699902-10-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown

ASoC: SDCA: Add support for IT/OT Entity properties

2025-02-07T17:34:07Z

Add support for parsing the Input/Output Terminal Entity properties from DisCo/ACPI. Signed-off-by: Charles Keepax Reviewed-by: Pierre-Louis Bossart Link: https://patch.msgid.link/20250205113801.3699902-9-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown

ASoC: SDCA: Add Channel Cluster parsing

2025-02-07T17:34:06Z

Within SDCA collections of Channels are referred to as Clusters, each Channel within a Cluster can have various properties attached to it. For example a stereo audio stream, would have a Cluster with 2 Channels one marked as left and the other as right. Various Clusters are specified in DisCo/ACPI and controls then allow the class driver to select between these channel configurations. Add support for parsing these Cluster definitions. Signed-off-by: Charles Keepax Reviewed-by: Pierre-Louis Bossart Link: https://patch.msgid.link/20250205113801.3699902-8-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown

ASoC: SDCA: Add parsing for Control range structures

2025-02-07T17:34:05Z

DisCo/SDCA contains small buffers of data that hold ranges of valid values for the various SDCA Controls. Add support for parsing these from ACPI. Signed-off-by: Charles Keepax Reviewed-by: Pierre-Louis Bossart Link: https://patch.msgid.link/20250205113801.3699902-7-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown

ASoC: SDCA: Add SDCA Control parsing

2025-02-07T17:34:04Z

Each SDCA Entity will contain a number of Controls, these are basically equivalent to registers. Although a single Control will only ever contain a single field. Some of these would map directly to ALSA controls once more of the SDCA class driver is implemented. These controls are parsed out of the DisCo ACPI tables. One small todo here is that each Control can have multiple sub-entries (Control Numbers), these are typically used to represent channels. Whilst support is present for these, currently the ACPI properties that would allow differing defaults for each channel are not parsed. But there is nothing here that should prevent that being added in the future. Signed-off-by: Charles Keepax Reviewed-by: Pierre-Louis Bossart Link: https://patch.msgid.link/20250205113801.3699902-6-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown

ASoC: SDCA: Add support for Entity 0

2025-02-07T17:34:03Z

Within SDCA there is a special Entity called Entity 0 which is used to hold Function level controls. Whilst Entity 0 isn't a full SDCA Entity, it is helpful to add an sdca_entity structure for it. This will allow it to be treated identically in the code that handles SDCA Controls. Signed-off-by: Charles Keepax Reviewed-by: Pierre-Louis Bossart Link: https://patch.msgid.link/20250205113801.3699902-5-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown