[PATCH v2 0/3] ASoC: Add sdw stream operations to dailink ops.
Sdw stream operation APIs can be called once per stream. Move these operations to dailink ops. The linked series is "soundwire: Remove sdw stream operations from Intel soundwire dai".
Pierre-Louis Bossart (3): ASoC: soc-dai: clarify return value for get_sdw_stream() ASOC: Intel: sof_sdw: add dailink .trigger callback ASOC: Intel: sof_sdw: add dailink .prepare and .hw_free callback
include/sound/soc-dai.h | 3 +- sound/soc/intel/boards/sof_sdw.c | 81 ++++++++++++++++++++++++++++++++ 2 files changed, 83 insertions(+), 1 deletion(-)
From: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com
Previous changes move to use ERR_PTR(-ENOTSUPP), but it's not clear what implementations can return in case of errors. Explicitly document that NULL is not a possible return value, only ERR_PTR with a negative error code is valid.
Fixes: 308811a327c38 ('ASoC: soc-dai: return proper error for get_sdw_stream()') Cc: Srinivas Kandagatla srinivas.kandagatla@linaro.org Reported-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Rander Wang rander.wang@linux.intel.com Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com --- include/sound/soc-dai.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h index 776a60529e70..8b693dade9c6 100644 --- a/include/sound/soc-dai.h +++ b/include/sound/soc-dai.h @@ -471,7 +471,8 @@ static inline int snd_soc_dai_set_sdw_stream(struct snd_soc_dai *dai, * This routine only retrieves that was previously configured * with snd_soc_dai_get_sdw_stream() * - * Returns pointer to stream or -ENOTSUPP if callback is not supported; + * Returns pointer to stream or an ERR_PTR value, e.g. + * ERR_PTR(-ENOTSUPP) if callback is not supported; */ static inline void *snd_soc_dai_get_sdw_stream(struct snd_soc_dai *dai, int direction)
From: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com
Add trigger functionality to dailink, so far only .startup() and .shutdown() were implemented at the machine driver level.
The companion patch for this patch is the removal of the trigger callback at the DAI level in drivers/soundwire/intel.c
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Rander Wang rander.wang@linux.intel.com Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com --- sound/soc/intel/boards/sof_sdw.c | 41 ++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+)
diff --git a/sound/soc/intel/boards/sof_sdw.c b/sound/soc/intel/boards/sof_sdw.c index 2463d432bf4d..f251e046d74d 100644 --- a/sound/soc/intel/boards/sof_sdw.c +++ b/sound/soc/intel/boards/sof_sdw.c @@ -195,6 +195,46 @@ int sdw_startup(struct snd_pcm_substream *substream) return sdw_startup_stream(substream); }
+static int sdw_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct sdw_stream_runtime *sdw_stream; + struct snd_soc_dai *dai; + int ret; + + /* Find stream from first CPU DAI */ + dai = asoc_rtd_to_cpu(rtd, 0); + + sdw_stream = snd_soc_dai_get_sdw_stream(dai, substream->stream); + + if (IS_ERR(sdw_stream)) { + dev_err(rtd->dev, "no stream found for DAI %s", dai->name); + return PTR_ERR(sdw_stream); + } + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + case SNDRV_PCM_TRIGGER_RESUME: + ret = sdw_enable_stream(sdw_stream); + break; + + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_STOP: + ret = sdw_disable_stream(sdw_stream); + break; + default: + ret = -EINVAL; + break; + } + + if (ret) + dev_err(rtd->dev, "%s trigger %d failed: %d", __func__, cmd, ret); + + return ret; +} + void sdw_shutdown(struct snd_pcm_substream *substream) { sdw_shutdown_stream(substream); @@ -202,6 +242,7 @@ void sdw_shutdown(struct snd_pcm_substream *substream)
static const struct snd_soc_ops sdw_ops = { .startup = sdw_startup, + .trigger = sdw_trigger, .shutdown = sdw_shutdown, };
From: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com
Add .prepare and .hw_free callback to dailink.
The companion patch for this patch is the removal of stream operations in the .prepare and .hw_free callbacks at the DAI level in drivers/soundwire/intel.c
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Rander Wang rander.wang@linux.intel.com Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com --- sound/soc/intel/boards/sof_sdw.c | 40 ++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+)
diff --git a/sound/soc/intel/boards/sof_sdw.c b/sound/soc/intel/boards/sof_sdw.c index f251e046d74d..16503772965c 100644 --- a/sound/soc/intel/boards/sof_sdw.c +++ b/sound/soc/intel/boards/sof_sdw.c @@ -195,6 +195,25 @@ int sdw_startup(struct snd_pcm_substream *substream) return sdw_startup_stream(substream); }
+static int sdw_prepare(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct sdw_stream_runtime *sdw_stream; + struct snd_soc_dai *dai; + + /* Find stream from first CPU DAI */ + dai = asoc_rtd_to_cpu(rtd, 0); + + sdw_stream = snd_soc_dai_get_sdw_stream(dai, substream->stream); + + if (IS_ERR(sdw_stream)) { + dev_err(rtd->dev, "no stream found for DAI %s", dai->name); + return PTR_ERR(sdw_stream); + } + + return sdw_prepare_stream(sdw_stream); +} + static int sdw_trigger(struct snd_pcm_substream *substream, int cmd) { struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); @@ -235,6 +254,25 @@ static int sdw_trigger(struct snd_pcm_substream *substream, int cmd) return ret; }
+static int sdw_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct sdw_stream_runtime *sdw_stream; + struct snd_soc_dai *dai; + + /* Find stream from first CPU DAI */ + dai = asoc_rtd_to_cpu(rtd, 0); + + sdw_stream = snd_soc_dai_get_sdw_stream(dai, substream->stream); + + if (IS_ERR(sdw_stream)) { + dev_err(rtd->dev, "no stream found for DAI %s", dai->name); + return PTR_ERR(sdw_stream); + } + + return sdw_deprepare_stream(sdw_stream); +} + void sdw_shutdown(struct snd_pcm_substream *substream) { sdw_shutdown_stream(substream); @@ -242,7 +280,9 @@ void sdw_shutdown(struct snd_pcm_substream *substream)
static const struct snd_soc_ops sdw_ops = { .startup = sdw_startup, + .prepare = sdw_prepare, .trigger = sdw_trigger, + .hw_free = sdw_hw_free, .shutdown = sdw_shutdown, };
On 04-09-20, 04:46, Bard Liao wrote:
Sdw stream operation APIs can be called once per stream. Move these operations to dailink ops. The linked series is "soundwire: Remove sdw stream operations from Intel soundwire dai".
Pierre-Louis Bossart (3): ASoC: soc-dai: clarify return value for get_sdw_stream() ASOC: Intel: sof_sdw: add dailink .trigger callback ASOC: Intel: sof_sdw: add dailink .prepare and .hw_free callback
s/ASOC/ASoC
with that:
Reviewed-by: Vinod Koul vkoul@kernel.org
include/sound/soc-dai.h | 3 +- sound/soc/intel/boards/sof_sdw.c | 81 ++++++++++++++++++++++++++++++++ 2 files changed, 83 insertions(+), 1 deletion(-)
-- 2.17.1
participants (2)
-
Bard Liao -
Vinod Koul