diff options
| author | Charles Keepax <ckeepax@opensource.cirrus.com> | 2025-02-05 11:37:57 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-02-07 17:34:05 +0000 |
| commit | 64fb5af1d1bbcf1b808e9bb092b22fa1b691ae63 (patch) | |
| tree | 39e731fc5403754d435b058a7363228a73c28b2c /include/sound/sdca_function.h | |
| parent | 42b144cb6a2d87385fa0b124c975d6cf1e3ec630 (diff) | |
ASoC: SDCA: Add parsing for Control range structures
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 <ckeepax@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Link: https://patch.msgid.link/20250205113801.3699902-7-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/sound/sdca_function.h')
| -rw-r--r-- | include/sound/sdca_function.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/sound/sdca_function.h b/include/sound/sdca_function.h index 64043090fe76..769ae6841064 100644 --- a/include/sound/sdca_function.h +++ b/include/sound/sdca_function.h @@ -613,6 +613,18 @@ enum sdca_access_layer { }; /** + * struct sdca_control_range - SDCA Control range table + * @cols: Number of columns in the range table. + * @rows: Number of rows in the range table. + * @data: Array of values contained in the range table. + */ +struct sdca_control_range { + unsigned int cols; + unsigned int rows; + u32 *data; +}; + +/** * struct sdca_control - information for one SDCA Control * @label: Name for the Control, from SDCA Specification v1.0, section 7.1.7. * @sel: Identifier used for addressing. @@ -622,6 +634,7 @@ enum sdca_access_layer { * Control. * @cn_list: A bitmask showing the valid Control Numbers within this Control, * Control Numbers typically represent channels. + * @range: Buffer describing valid range of values for the Control. * @mode: Access mode of the Control. * @layers: Bitmask of access layers of the Control. * @deferrable: Indicates if the access to the Control can be deferred. @@ -637,6 +650,7 @@ struct sdca_control { int interrupt_position; u64 cn_list; + struct sdca_control_range range; enum sdca_access_mode mode; u8 layers; |