diff options
| author | Richard Fitzgerald <rf@opensource.cirrus.com> | 2018-07-19 13:50:39 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-07-19 17:11:56 +0300 |
| commit | d52ed4b0bc73c1c7816f5b7a36229a95acfc76c8 (patch) | |
| tree | 30174d69a92b0b691dcf427c4395110d51ed2cbd /sound/soc/codecs/wmfw.h | |
| parent | 3bbc2705a3d132b9a86a0e4083f82a2b3c9bfdfd (diff) | |
| download | linux-d52ed4b0bc73c1c7816f5b7a36229a95acfc76c8.tar.xz | |
ASoC: wm_adsp: Parse HOST_BUFFER controls
Currently the compressed streams in DSP firmwares are
identified essentially by looking at a fixed location inside
the firmware. This is fragile and also limits things to a
single compressed stream.
Here a new form of firmware parameter is added, the HOST_BUFFER
which identifies a compressed stream from meta-data in the
firmware file. This is more robust and allows for the possiblity
of using multiple streams per core in the future. Currently the
implementation is still limited to a single stream and will
use the first HOST_BUFFER parameter encountered. If there aren't
any HOST_BUFFER parameters it will fall back to the legacy way
of finding the host buffer.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/wmfw.h')
| -rw-r--r-- | sound/soc/codecs/wmfw.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/soc/codecs/wmfw.h b/sound/soc/codecs/wmfw.h index ec78b9da020f..0c3f50acb8b1 100644 --- a/sound/soc/codecs/wmfw.h +++ b/sound/soc/codecs/wmfw.h @@ -29,6 +29,7 @@ /* Non-ALSA coefficient types start at 0x1000 */ #define WMFW_CTL_TYPE_ACKED 0x1000 /* acked control */ #define WMFW_CTL_TYPE_HOSTEVENT 0x1001 /* event control */ +#define WMFW_CTL_TYPE_HOST_BUFFER 0x1002 /* host buffer pointer */ struct wmfw_header { char magic[4]; |