diff options
| author | Rander Wang <rander.wang@linux.intel.com> | 2020-02-15 02:47:38 +0100 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-02-18 09:39:52 +0100 |
| commit | 973a842940bceadcdfe9c77a1fc98ba8526ace0c (patch) | |
| tree | e25c7a7f008a310fe4b9971d2c1ac8031cc8200f /drivers/soundwire | |
| parent | soundwire: intel: add prepare support in sdw dai driver (diff) | |
| download | linux-973a842940bceadcdfe9c77a1fc98ba8526ace0c.tar.xz linux-973a842940bceadcdfe9c77a1fc98ba8526ace0c.zip | |
soundwire: intel: add trigger support in sdw dai driver
The existing code does not expose a trigger callback, which is very
much required for streaming.
The SoundWire stream is enabled and disabled in trigger function.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Rander Wang <rander.wang@linux.intel.com>
Acked-by: Sanyog Kale <sanyog.r.kale@intel.com>
Link: https://lore.kernel.org/r/20200215014740.27580-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire')
| -rw-r--r-- | drivers/soundwire/intel.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index bad7c30f1e01..999aa2cd9fea 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -714,6 +714,43 @@ static int intel_prepare(struct snd_pcm_substream *substream, return sdw_prepare_stream(dma->stream); } +static int intel_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct sdw_cdns_dma_data *dma; + int ret; + + dma = snd_soc_dai_get_dma_data(dai, substream); + if (!dma) { + dev_err(dai->dev, "failed to get dma data in %s", __func__); + return -EIO; + } + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + case SNDRV_PCM_TRIGGER_RESUME: + ret = sdw_enable_stream(dma->stream); + break; + + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_STOP: + ret = sdw_disable_stream(dma->stream); + break; + + default: + ret = -EINVAL; + break; + } + + if (ret) + dev_err(dai->dev, + "%s trigger %d failed: %d", + __func__, cmd, ret); + return ret; +} + static int intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { @@ -761,6 +798,7 @@ static int intel_pdm_set_sdw_stream(struct snd_soc_dai *dai, static const struct snd_soc_dai_ops intel_pcm_dai_ops = { .hw_params = intel_hw_params, .prepare = intel_prepare, + .trigger = intel_trigger, .hw_free = intel_hw_free, .shutdown = intel_shutdown, .set_sdw_stream = intel_pcm_set_sdw_stream, @@ -769,6 +807,7 @@ static const struct snd_soc_dai_ops intel_pcm_dai_ops = { static const struct snd_soc_dai_ops intel_pdm_dai_ops = { .hw_params = intel_hw_params, .prepare = intel_prepare, + .trigger = intel_trigger, .hw_free = intel_hw_free, .shutdown = intel_shutdown, .set_sdw_stream = intel_pdm_set_sdw_stream, |