diff options
| author | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2018-07-23 16:54:03 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-07-24 12:06:43 +0100 |
| commit | 467b061f1ac80f323bedb56d20a24f7bc0d2cec5 (patch) | |
| tree | 6b0d2a57284cccef0d1ac53b3b1fb86d5048c7a4 | |
| parent | a241c3d95b8b985834d218eedde3923ed683e862 (diff) | |
| download | linux-next-467b061f1ac80f323bedb56d20a24f7bc0d2cec5.tar.gz | |
ASoC: core: add support to snd_soc_dai_get_channel_map()
On Qualcomm platforms, specifically with SLIMbus interfaced codecs,
the codec slim channel numbers are passed to DSP while configuring
the slim audio path. Having get_channel_map() would allow dais to
share such information across multiple dais.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | include/sound/soc-dai.h | 8 | ||||
| -rw-r--r-- | sound/soc/soc-core.c | 22 |
2 files changed, 30 insertions, 0 deletions
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h index a14bc0608ae9..f5d70041108f 100644 --- a/include/sound/soc-dai.h +++ b/include/sound/soc-dai.h @@ -138,6 +138,11 @@ int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate); int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute, int direction); + +int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai, + unsigned int *tx_num, unsigned int *tx_slot, + unsigned int *rx_num, unsigned int *rx_slot); + int snd_soc_dai_is_dummy(struct snd_soc_dai *dai); struct snd_soc_dai_ops { @@ -165,6 +170,9 @@ struct snd_soc_dai_ops { int (*set_channel_map)(struct snd_soc_dai *dai, unsigned int tx_num, unsigned int *tx_slot, unsigned int rx_num, unsigned int *rx_slot); + int (*get_channel_map)(struct snd_soc_dai *dai, + unsigned int *tx_num, unsigned int *tx_slot, + unsigned int *rx_num, unsigned int *rx_slot); int (*set_tristate)(struct snd_soc_dai *dai, int tristate); int (*set_sdw_stream)(struct snd_soc_dai *dai, diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index ad5b0ef16d82..81b27923303d 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -2680,6 +2680,28 @@ int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map); /** + * snd_soc_dai_get_channel_map - Get DAI audio channel map + * @dai: DAI + * @tx_num: how many TX channels + * @tx_slot: pointer to an array which imply the TX slot number channel + * 0~num-1 uses + * @rx_num: how many RX channels + * @rx_slot: pointer to an array which imply the RX slot number channel + * 0~num-1 uses + */ +int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai, + unsigned int *tx_num, unsigned int *tx_slot, + unsigned int *rx_num, unsigned int *rx_slot) +{ + if (dai->driver->ops->get_channel_map) + return dai->driver->ops->get_channel_map(dai, tx_num, tx_slot, + rx_num, rx_slot); + else + return -ENOTSUPP; +} +EXPORT_SYMBOL_GPL(snd_soc_dai_get_channel_map); + +/** * snd_soc_dai_set_tristate - configure DAI system or master clock. * @dai: DAI * @tristate: tristate enable |