[alsa-devel] [PATCH RFC v4 2/6] ASoC: Add multiple CPU DAI support for PCM ops
Bard Liao
yung-chuan.liao at linux.intel.com
Mon Jan 20 14:29:24 CET 2020
From: Shreyas NC <shreyas.nc at intel.com>
Add support in PCM operations to invoke multiple cpu dais as we do
for multiple codec dais. Also the symmetry calculations are updated to
reflect multiple cpu dais.
Signed-off-by: Vinod Koul <vkoul at kernel.org>
Signed-off-by: Shreyas NC <shreyas.nc at intel.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Signed-off-by: Bard Liao <yung-chuan.liao at linux.intel.com>
---
sound/soc/soc-pcm.c | 487 +++++++++++++++++++++++++++++---------------
1 file changed, 322 insertions(+), 165 deletions(-)
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 74d340d1c9f7..bdc918576cf6 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -40,24 +40,28 @@
*/
void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream)
{
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
struct snd_soc_dai *codec_dai;
int i;
lockdep_assert_held(&rtd->card->pcm_mutex);
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
- cpu_dai->playback_active++;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ cpu_dai->playback_active++;
for_each_rtd_codec_dai(rtd, i, codec_dai)
codec_dai->playback_active++;
} else {
- cpu_dai->capture_active++;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ cpu_dai->capture_active++;
for_each_rtd_codec_dai(rtd, i, codec_dai)
codec_dai->capture_active++;
}
- cpu_dai->active++;
- cpu_dai->component->active++;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ cpu_dai->active++;
+ cpu_dai->component->active++;
+ }
for_each_rtd_codec_dai(rtd, i, codec_dai) {
codec_dai->active++;
codec_dai->component->active++;
@@ -76,24 +80,28 @@ void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream)
*/
void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream)
{
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
struct snd_soc_dai *codec_dai;
int i;
lockdep_assert_held(&rtd->card->pcm_mutex);
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
- cpu_dai->playback_active--;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ cpu_dai->playback_active--;
for_each_rtd_codec_dai(rtd, i, codec_dai)
codec_dai->playback_active--;
} else {
- cpu_dai->capture_active--;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ cpu_dai->capture_active--;
for_each_rtd_codec_dai(rtd, i, codec_dai)
codec_dai->capture_active--;
}
- cpu_dai->active--;
- cpu_dai->component->active--;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ cpu_dai->active--;
+ cpu_dai->component->active--;
+ }
for_each_rtd_codec_dai(rtd, i, codec_dai) {
codec_dai->component->active--;
codec_dai->active--;
@@ -233,7 +241,7 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
struct snd_soc_dai *codec_dai;
unsigned int rate, channels, sample_bits, symmetry, i;
@@ -242,40 +250,60 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream,
sample_bits = snd_pcm_format_physical_width(params_format(params));
/* reject unmatched parameters when applying symmetry */
- symmetry = cpu_dai->driver->symmetric_rates ||
- rtd->dai_link->symmetric_rates;
+ symmetry = rtd->dai_link->symmetric_rates;
+
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ symmetry |= cpu_dai->driver->symmetric_rates;
for_each_rtd_codec_dai(rtd, i, codec_dai)
symmetry |= codec_dai->driver->symmetric_rates;
- if (symmetry && cpu_dai->rate && cpu_dai->rate != rate) {
- dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n",
- cpu_dai->rate, rate);
- return -EINVAL;
+ if (symmetry) {
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ if (cpu_dai->rate && cpu_dai->rate != rate) {
+ dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n",
+ cpu_dai->rate, rate);
+ return -EINVAL;
+ }
+ }
}
- symmetry = cpu_dai->driver->symmetric_channels ||
- rtd->dai_link->symmetric_channels;
+ symmetry = rtd->dai_link->symmetric_channels;
+
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ symmetry |= cpu_dai->driver->symmetric_channels;
for_each_rtd_codec_dai(rtd, i, codec_dai)
symmetry |= codec_dai->driver->symmetric_channels;
- if (symmetry && cpu_dai->channels && cpu_dai->channels != channels) {
- dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n",
- cpu_dai->channels, channels);
- return -EINVAL;
+ if (symmetry) {
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ if (cpu_dai->channels &&
+ cpu_dai->channels != channels) {
+ dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n",
+ cpu_dai->channels, channels);
+ return -EINVAL;
+ }
+ }
}
- symmetry = cpu_dai->driver->symmetric_samplebits ||
- rtd->dai_link->symmetric_samplebits;
+ symmetry = rtd->dai_link->symmetric_samplebits;
+
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ symmetry |= cpu_dai->driver->symmetric_samplebits;
for_each_rtd_codec_dai(rtd, i, codec_dai)
symmetry |= codec_dai->driver->symmetric_samplebits;
- if (symmetry && cpu_dai->sample_bits && cpu_dai->sample_bits != sample_bits) {
- dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n",
- cpu_dai->sample_bits, sample_bits);
- return -EINVAL;
+ if (symmetry) {
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ if (cpu_dai->sample_bits &&
+ cpu_dai->sample_bits != sample_bits) {
+ dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n",
+ cpu_dai->sample_bits, sample_bits);
+ return -EINVAL;
+ }
+ }
}
return 0;
@@ -284,14 +312,20 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream,
static bool soc_pcm_has_symmetry(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai_driver *cpu_driver = rtd->cpu_dai->driver;
struct snd_soc_dai_link *link = rtd->dai_link;
struct snd_soc_dai *codec_dai;
+ struct snd_soc_dai *cpu_dai;
unsigned int symmetry, i;
- symmetry = cpu_driver->symmetric_rates || link->symmetric_rates ||
- cpu_driver->symmetric_channels || link->symmetric_channels ||
- cpu_driver->symmetric_samplebits || link->symmetric_samplebits;
+ symmetry = link->symmetric_rates ||
+ link->symmetric_channels ||
+ link->symmetric_samplebits;
+
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ symmetry = symmetry ||
+ cpu_dai->driver->symmetric_rates ||
+ cpu_dai->driver->symmetric_channels ||
+ cpu_dai->driver->symmetric_samplebits;
for_each_rtd_codec_dai(rtd, i, codec_dai)
symmetry = symmetry ||
@@ -319,10 +353,10 @@ static void soc_pcm_set_msb(struct snd_pcm_substream *substream, int bits)
static void soc_pcm_apply_msb(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
struct snd_soc_dai *codec_dai;
int i;
- unsigned int bits = 0, cpu_bits;
+ unsigned int bits = 0, cpu_bits = 0;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
for_each_rtd_codec_dai(rtd, i, codec_dai) {
@@ -332,7 +366,14 @@ static void soc_pcm_apply_msb(struct snd_pcm_substream *substream)
}
bits = max(codec_dai->driver->playback.sig_bits, bits);
}
- cpu_bits = cpu_dai->driver->playback.sig_bits;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ if (cpu_dai->driver->playback.sig_bits == 0) {
+ cpu_bits = 0;
+ break;
+ }
+ cpu_bits = max(cpu_dai->driver->playback.sig_bits,
+ cpu_bits);
+ }
} else {
for_each_rtd_codec_dai(rtd, i, codec_dai) {
if (codec_dai->driver->capture.sig_bits == 0) {
@@ -341,7 +382,14 @@ static void soc_pcm_apply_msb(struct snd_pcm_substream *substream)
}
bits = max(codec_dai->driver->capture.sig_bits, bits);
}
- cpu_bits = cpu_dai->driver->capture.sig_bits;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ if (cpu_dai->driver->capture.sig_bits == 0) {
+ cpu_bits = 0;
+ break;
+ }
+ cpu_bits = max(cpu_dai->driver->capture.sig_bits,
+ cpu_bits);
+ }
}
soc_pcm_set_msb(substream, bits);
@@ -354,22 +402,36 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream)
struct snd_pcm_hardware *hw = &runtime->hw;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai;
- struct snd_soc_dai_driver *cpu_dai_drv = rtd->cpu_dai->driver;
+ struct snd_soc_dai *cpu_dai;
+ struct snd_soc_dai_driver *cpu_dai_drv;
struct snd_soc_dai_driver *codec_dai_drv;
struct snd_soc_pcm_stream *codec_stream;
struct snd_soc_pcm_stream *cpu_stream;
unsigned int chan_min = 0, chan_max = UINT_MAX;
+ unsigned int cpu_chan_min = 0, cpu_chan_max = UINT_MAX;
unsigned int rate_min = 0, rate_max = UINT_MAX;
- unsigned int rates = UINT_MAX;
+ unsigned int cpu_rate_min = 0, cpu_rate_max = UINT_MAX;
+ unsigned int rates = UINT_MAX, cpu_rates = UINT_MAX;
u64 formats = ULLONG_MAX;
int i;
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- cpu_stream = &cpu_dai_drv->playback;
- else
- cpu_stream = &cpu_dai_drv->capture;
+ /* first calculate min/max only for CPUs in the DAI link */
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ cpu_dai_drv = cpu_dai->driver;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ cpu_stream = &cpu_dai_drv->playback;
+ else
+ cpu_stream = &cpu_dai_drv->capture;
+ cpu_chan_min = max(cpu_chan_min, cpu_stream->channels_min);
+ cpu_chan_max = min(cpu_chan_max, cpu_stream->channels_max);
+ cpu_rate_min = max(cpu_rate_min, cpu_stream->rate_min);
+ cpu_rate_max = min_not_zero(cpu_rate_max, cpu_stream->rate_max);
+ formats &= cpu_stream->formats;
+ cpu_rates = snd_pcm_rate_mask_intersect(cpu_stream->rates,
+ cpu_rates);
+ }
- /* first calculate min/max only for CODECs in the DAI link */
+ /* second calculate min/max only for CODECs in the DAI link */
for_each_rtd_codec_dai(rtd, i, codec_dai) {
/*
@@ -400,27 +462,28 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream)
/*
* chan min/max cannot be enforced if there are multiple CODEC DAIs
- * connected to a single CPU DAI, use CPU DAI's directly and let
+ * connected to CPU DAI(s), use CPU DAI's directly and let
* channel allocation be fixed up later
*/
if (rtd->num_codecs > 1) {
- chan_min = cpu_stream->channels_min;
- chan_max = cpu_stream->channels_max;
+ chan_min = cpu_chan_min;
+ chan_max = cpu_chan_max;
}
- hw->channels_min = max(chan_min, cpu_stream->channels_min);
- hw->channels_max = min(chan_max, cpu_stream->channels_max);
+ /* finally find a intersection between CODECs and CPUs */
+ hw->channels_min = max(chan_min, cpu_chan_min);
+ hw->channels_max = min(chan_max, cpu_chan_max);
if (hw->formats)
- hw->formats &= formats & cpu_stream->formats;
+ hw->formats &= formats;
else
- hw->formats = formats & cpu_stream->formats;
- hw->rates = snd_pcm_rate_mask_intersect(rates, cpu_stream->rates);
+ hw->formats = formats;
+ hw->rates = snd_pcm_rate_mask_intersect(rates, cpu_rates);
snd_pcm_limit_hw_rates(runtime);
- hw->rate_min = max(hw->rate_min, cpu_stream->rate_min);
+ hw->rate_min = max(hw->rate_min, cpu_rate_min);
hw->rate_min = max(hw->rate_min, rate_min);
- hw->rate_max = min_not_zero(hw->rate_max, cpu_stream->rate_max);
+ hw->rate_max = min_not_zero(hw->rate_max, cpu_rate_max);
hw->rate_max = min_not_zero(hw->rate_max, rate_max);
}
@@ -482,9 +545,10 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_component *component;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
struct snd_soc_dai *codec_dai;
const char *codec_dai_name = "multicodec";
+ const char *cpu_dai_name = "multicpu";
int i, ret = 0;
for_each_rtd_components(rtd, i, component)
@@ -496,11 +560,13 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);
/* startup the audio subsystem */
- ret = snd_soc_dai_startup(cpu_dai, substream);
- if (ret < 0) {
- dev_err(cpu_dai->dev, "ASoC: can't open interface %s: %d\n",
- cpu_dai->name, ret);
- goto out;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ ret = snd_soc_dai_startup(cpu_dai, substream);
+ if (ret < 0) {
+ dev_err(cpu_dai->dev, "ASoC: can't open interface %s: %d\n",
+ cpu_dai->name, ret);
+ goto interface_err;
+ }
}
ret = soc_pcm_components_open(substream, &component);
@@ -541,34 +607,39 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
if (rtd->num_codecs == 1)
codec_dai_name = rtd->codec_dai->name;
+ if (rtd->num_cpus == 1)
+ cpu_dai_name = rtd->cpu_dai->name;
+
if (soc_pcm_has_symmetry(substream))
runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX;
ret = -EINVAL;
if (!runtime->hw.rates) {
printk(KERN_ERR "ASoC: %s <-> %s No matching rates\n",
- codec_dai_name, cpu_dai->name);
+ codec_dai_name, cpu_dai_name);
goto config_err;
}
if (!runtime->hw.formats) {
printk(KERN_ERR "ASoC: %s <-> %s No matching formats\n",
- codec_dai_name, cpu_dai->name);
+ codec_dai_name, cpu_dai_name);
goto config_err;
}
if (!runtime->hw.channels_min || !runtime->hw.channels_max ||
runtime->hw.channels_min > runtime->hw.channels_max) {
printk(KERN_ERR "ASoC: %s <-> %s No matching channels\n",
- codec_dai_name, cpu_dai->name);
+ codec_dai_name, cpu_dai_name);
goto config_err;
}
soc_pcm_apply_msb(substream);
/* Symmetry only applies if we've already got an active stream. */
- if (cpu_dai->active) {
- ret = soc_pcm_apply_symmetry(substream, cpu_dai);
- if (ret != 0)
- goto config_err;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ if (cpu_dai->active) {
+ ret = soc_pcm_apply_symmetry(substream, cpu_dai);
+ if (ret != 0)
+ goto config_err;
+ }
}
for_each_rtd_codec_dai(rtd, i, codec_dai) {
@@ -580,7 +651,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
}
pr_debug("ASoC: %s <-> %s info:\n",
- codec_dai_name, cpu_dai->name);
+ codec_dai_name, cpu_dai_name);
pr_debug("ASoC: rate mask 0x%x\n", runtime->hw.rates);
pr_debug("ASoC: min ch %d max ch %d\n", runtime->hw.channels_min,
runtime->hw.channels_max);
@@ -608,8 +679,12 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
component_err:
soc_pcm_components_close(substream, component);
- snd_soc_dai_shutdown(cpu_dai, substream);
-out:
+ i = rtd->num_cpus;
+
+interface_err:
+ for_each_rtd_cpu_dai_rollback(rtd, i, cpu_dai)
+ snd_soc_dai_shutdown(cpu_dai, substream);
+
mutex_unlock(&rtd->card->pcm_mutex);
for_each_rtd_components(rtd, i, component) {
@@ -643,7 +718,7 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_component *component;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
struct snd_soc_dai *codec_dai;
int i;
@@ -652,17 +727,21 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
snd_soc_runtime_deactivate(rtd, substream->stream);
/* clear the corresponding DAIs rate when inactive */
- if (!cpu_dai->active)
- cpu_dai->rate = 0;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ if (!cpu_dai->active)
+ cpu_dai->rate = 0;
+ }
for_each_rtd_codec_dai(rtd, i, codec_dai) {
if (!codec_dai->active)
codec_dai->rate = 0;
}
- snd_soc_dai_digital_mute(cpu_dai, 1, substream->stream);
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ snd_soc_dai_digital_mute(cpu_dai, 1, substream->stream);
- snd_soc_dai_shutdown(cpu_dai, substream);
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ snd_soc_dai_shutdown(cpu_dai, substream);
for_each_rtd_codec_dai(rtd, i, codec_dai)
snd_soc_dai_shutdown(codec_dai, substream);
@@ -697,7 +776,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_component *component;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
struct snd_soc_dai *codec_dai;
int i, ret = 0;
@@ -731,11 +810,13 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
}
}
- ret = snd_soc_dai_prepare(cpu_dai, substream);
- if (ret < 0) {
- dev_err(cpu_dai->dev,
- "ASoC: cpu DAI prepare error: %d\n", ret);
- goto out;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ ret = snd_soc_dai_prepare(cpu_dai, substream);
+ if (ret < 0) {
+ dev_err(cpu_dai->dev,
+ "ASoC: cpu DAI prepare error: %d\n", ret);
+ goto out;
+ }
}
/* cancel any delayed stream shutdown that is pending */
@@ -751,7 +832,8 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
for_each_rtd_codec_dai(rtd, i, codec_dai)
snd_soc_dai_digital_mute(codec_dai, 0,
substream->stream);
- snd_soc_dai_digital_mute(cpu_dai, 0, substream->stream);
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ snd_soc_dai_digital_mute(cpu_dai, 0, substream->stream);
out:
mutex_unlock(&rtd->card->pcm_mutex);
@@ -796,7 +878,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_component *component;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
struct snd_soc_dai *codec_dai;
int i, ret = 0;
@@ -862,17 +944,19 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
snd_soc_dapm_update_dai(substream, &codec_params, codec_dai);
}
- ret = snd_soc_dai_hw_params(cpu_dai, substream, params);
- if (ret < 0)
- goto interface_err;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ ret = snd_soc_dai_hw_params(cpu_dai, substream, params);
+ if (ret < 0)
+ goto interface_err;
- /* store the parameters for each DAIs */
- cpu_dai->rate = params_rate(params);
- cpu_dai->channels = params_channels(params);
- cpu_dai->sample_bits =
- snd_pcm_format_physical_width(params_format(params));
+ /* store the parameters for each DAI */
+ cpu_dai->rate = params_rate(params);
+ cpu_dai->channels = params_channels(params);
+ cpu_dai->sample_bits =
+ snd_pcm_format_physical_width(params_format(params));
- snd_soc_dapm_update_dai(substream, params, cpu_dai);
+ snd_soc_dapm_update_dai(substream, params, cpu_dai);
+ }
for_each_rtd_components(rtd, i, component) {
ret = snd_soc_component_hw_params(component, substream, params);
@@ -892,10 +976,14 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
component_err:
soc_pcm_components_hw_free(substream, component);
- snd_soc_dai_hw_free(cpu_dai, substream);
- cpu_dai->rate = 0;
+ i = rtd->num_cpus;
interface_err:
+ for_each_rtd_cpu_dai_rollback(rtd, i, cpu_dai) {
+ snd_soc_dai_hw_free(cpu_dai, substream);
+ cpu_dai->rate = 0;
+ }
+
i = rtd->num_codecs;
codec_err:
@@ -920,7 +1008,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
struct snd_soc_dai *codec_dai;
bool playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
int i;
@@ -928,10 +1016,12 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);
/* clear the corresponding DAIs parameters when going to be inactive */
- if (cpu_dai->active == 1) {
- cpu_dai->rate = 0;
- cpu_dai->channels = 0;
- cpu_dai->sample_bits = 0;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ if (cpu_dai->active == 1) {
+ cpu_dai->rate = 0;
+ cpu_dai->channels = 0;
+ cpu_dai->sample_bits = 0;
+ }
}
for_each_rtd_codec_dai(rtd, i, codec_dai) {
@@ -965,7 +1055,8 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
snd_soc_dai_hw_free(codec_dai, substream);
}
- snd_soc_dai_hw_free(cpu_dai, substream);
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ snd_soc_dai_hw_free(cpu_dai, substream);
mutex_unlock(&rtd->card->pcm_mutex);
return 0;
@@ -975,7 +1066,7 @@ static int soc_pcm_trigger_start(struct snd_pcm_substream *substream, int cmd)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_component *component;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
struct snd_soc_dai *codec_dai;
int i, ret;
@@ -991,9 +1082,11 @@ static int soc_pcm_trigger_start(struct snd_pcm_substream *substream, int cmd)
return ret;
}
- ret = snd_soc_dai_trigger(cpu_dai, substream, cmd);
- if (ret < 0)
- return ret;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ ret = snd_soc_dai_trigger(cpu_dai, substream, cmd);
+ if (ret < 0)
+ return ret;
+ }
for_each_rtd_codec_dai(rtd, i, codec_dai) {
ret = snd_soc_dai_trigger(codec_dai, substream, cmd);
@@ -1008,7 +1101,7 @@ static int soc_pcm_trigger_stop(struct snd_pcm_substream *substream, int cmd)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_component *component;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
struct snd_soc_dai *codec_dai;
int i, ret;
@@ -1018,9 +1111,11 @@ static int soc_pcm_trigger_stop(struct snd_pcm_substream *substream, int cmd)
return ret;
}
- ret = snd_soc_dai_trigger(cpu_dai, substream, cmd);
- if (ret < 0)
- return ret;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ ret = snd_soc_dai_trigger(cpu_dai, substream, cmd);
+ if (ret < 0)
+ return ret;
+ }
for_each_rtd_components(rtd, i, component) {
ret = snd_soc_component_trigger(component, substream, cmd);
@@ -1063,7 +1158,7 @@ static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
struct snd_soc_dai *codec_dai;
int i, ret;
@@ -1073,9 +1168,11 @@ static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream,
return ret;
}
- ret = snd_soc_dai_bespoke_trigger(cpu_dai, substream, cmd);
- if (ret < 0)
- return ret;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ ret = snd_soc_dai_bespoke_trigger(cpu_dai, substream, cmd);
+ if (ret < 0)
+ return ret;
+ }
return 0;
}
@@ -1087,12 +1184,13 @@ static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream,
static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
struct snd_soc_dai *codec_dai;
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_uframes_t offset = 0;
snd_pcm_sframes_t delay = 0;
snd_pcm_sframes_t codec_delay = 0;
+ snd_pcm_sframes_t cpu_delay = 0;
int i;
/* clearing the previous total delay */
@@ -1103,7 +1201,11 @@ static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream)
/* base delay if assigned in pointer callback */
delay = runtime->delay;
- delay += snd_soc_dai_delay(cpu_dai, substream);
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ cpu_delay = max(cpu_delay,
+ snd_soc_dai_delay(cpu_dai, substream));
+ }
+ delay += cpu_delay;
for_each_rtd_codec_dai(rtd, i, codec_dai) {
codec_delay = max(codec_delay,
@@ -1229,6 +1331,7 @@ static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card,
{
struct snd_soc_pcm_runtime *be;
struct snd_soc_dai *dai;
+ struct snd_soc_dai *cpu_dai;
int i;
dev_dbg(card->dev, "ASoC: find BE for widget %s\n", widget->name);
@@ -1239,12 +1342,15 @@ static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card,
if (!be->dai_link->no_pcm)
continue;
- dev_dbg(card->dev, "ASoC: try BE : %s\n",
- be->cpu_dai->playback_widget ?
- be->cpu_dai->playback_widget->name : "(not set)");
+ for_each_rtd_cpu_dai(be, i, cpu_dai) {
+ dev_dbg(card->dev, "ASoC: try BE : %s\n",
+ cpu_dai->playback_widget ?
+ cpu_dai->playback_widget->name :
+ "(not set)");
- if (be->cpu_dai->playback_widget == widget)
- return be;
+ if (cpu_dai->playback_widget == widget)
+ return be;
+ }
for_each_rtd_codec_dai(be, i, dai) {
if (dai->playback_widget == widget)
@@ -1258,12 +1364,15 @@ static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card,
if (!be->dai_link->no_pcm)
continue;
- dev_dbg(card->dev, "ASoC: try BE %s\n",
- be->cpu_dai->capture_widget ?
- be->cpu_dai->capture_widget->name : "(not set)");
+ for_each_rtd_cpu_dai(be, i, cpu_dai) {
+ dev_dbg(card->dev, "ASoC: try BE %s\n",
+ cpu_dai->capture_widget ?
+ cpu_dai->capture_widget->name :
+ "(not set)");
- if (be->cpu_dai->capture_widget == widget)
- return be;
+ if (cpu_dai->capture_widget == widget)
+ return be;
+ }
for_each_rtd_codec_dai(be, i, dai) {
if (dai->capture_widget == widget)
@@ -1313,8 +1422,10 @@ static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget,
if (!rtd->dai_link->no_pcm)
continue;
- if (rtd->cpu_dai->playback_widget == widget)
- return true;
+ for_each_rtd_cpu_dai(rtd, i, dai) {
+ if (dai->playback_widget == widget)
+ return true;
+ }
for_each_rtd_codec_dai(rtd, i, dai) {
if (dai->playback_widget == widget)
@@ -1326,8 +1437,10 @@ static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget,
if (!rtd->dai_link->no_pcm)
continue;
- if (rtd->cpu_dai->capture_widget == widget)
- return true;
+ for_each_rtd_cpu_dai(rtd, i, dai) {
+ if (dai->capture_widget == widget)
+ return true;
+ }
for_each_rtd_codec_dai(rtd, i, dai) {
if (dai->capture_widget == widget)
@@ -1370,10 +1483,18 @@ static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream,
unsigned int i;
/* is there a valid CPU DAI widget for this BE */
- widget = dai_get_widget(dpcm->be->cpu_dai, stream);
+ do_prune = 1;
+ for_each_rtd_cpu_dai(dpcm->be, i, dai) {
+ widget = dai_get_widget(dai, stream);
- /* prune the BE if it's no longer in our active list */
- if (widget && widget_in_list(list, widget))
+ /*
+ * The BE is pruned only if none of the cpu_dai
+ * widgets are in the active list.
+ */
+ if (widget && widget_in_list(list, widget))
+ do_prune = 0;
+ }
+ if (!do_prune)
continue;
/* is there a valid CODEC DAI widget for this BE */
@@ -1672,18 +1793,25 @@ static void dpcm_runtime_merge_chan(struct snd_pcm_substream *substream,
for_each_dpcm_be(fe, stream, dpcm) {
struct snd_soc_pcm_runtime *be = dpcm->be;
- struct snd_soc_dai_driver *cpu_dai_drv = be->cpu_dai->driver;
+ struct snd_soc_dai_driver *cpu_dai_drv;
struct snd_soc_dai_driver *codec_dai_drv;
struct snd_soc_pcm_stream *codec_stream;
struct snd_soc_pcm_stream *cpu_stream;
+ struct snd_soc_dai *dai;
+ int i;
- if (stream == SNDRV_PCM_STREAM_PLAYBACK)
- cpu_stream = &cpu_dai_drv->playback;
- else
- cpu_stream = &cpu_dai_drv->capture;
+ for_each_rtd_cpu_dai(be, i, dai) {
+ cpu_dai_drv = dai->driver;
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+ cpu_stream = &cpu_dai_drv->playback;
+ else
+ cpu_stream = &cpu_dai_drv->capture;
- *channels_min = max(*channels_min, cpu_stream->channels_min);
- *channels_max = min(*channels_max, cpu_stream->channels_max);
+ *channels_min = max(*channels_min,
+ cpu_stream->channels_min);
+ *channels_max = min(*channels_max,
+ cpu_stream->channels_max);
+ }
/*
* chan min/max cannot be enforced if there are multiple CODEC
@@ -1724,21 +1852,26 @@ static void dpcm_runtime_merge_rate(struct snd_pcm_substream *substream,
for_each_dpcm_be(fe, stream, dpcm) {
struct snd_soc_pcm_runtime *be = dpcm->be;
- struct snd_soc_dai_driver *cpu_dai_drv = be->cpu_dai->driver;
+ struct snd_soc_dai_driver *cpu_dai_drv;
struct snd_soc_dai_driver *codec_dai_drv;
struct snd_soc_pcm_stream *codec_stream;
struct snd_soc_pcm_stream *cpu_stream;
struct snd_soc_dai *dai;
int i;
- if (stream == SNDRV_PCM_STREAM_PLAYBACK)
- cpu_stream = &cpu_dai_drv->playback;
- else
- cpu_stream = &cpu_dai_drv->capture;
+ for_each_rtd_cpu_dai(be, i, dai) {
+ cpu_dai_drv = dai->driver;
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+ cpu_stream = &cpu_dai_drv->playback;
+ else
+ cpu_stream = &cpu_dai_drv->capture;
- *rate_min = max(*rate_min, cpu_stream->rate_min);
- *rate_max = min_not_zero(*rate_max, cpu_stream->rate_max);
- *rates = snd_pcm_rate_mask_intersect(*rates, cpu_stream->rates);
+ *rate_min = max(*rate_min, cpu_stream->rate_min);
+ *rate_max = min_not_zero(*rate_max,
+ cpu_stream->rate_max);
+ *rates = snd_pcm_rate_mask_intersect(*rates,
+ cpu_stream->rates);
+ }
for_each_rtd_codec_dai(be, i, dai) {
/*
@@ -1767,13 +1900,17 @@ static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver;
+ struct snd_soc_dai *cpu_dai;
+ struct snd_soc_dai_driver *cpu_dai_drv;
+ int i;
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback);
- else
- dpcm_init_runtime_hw(runtime, &cpu_dai_drv->capture);
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ cpu_dai_drv = cpu_dai->driver;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback);
+ else
+ dpcm_init_runtime_hw(runtime, &cpu_dai_drv->capture);
+ }
dpcm_runtime_merge_format(substream, &runtime->hw.formats);
dpcm_runtime_merge_chan(substream, &runtime->hw.channels_min,
@@ -1831,6 +1968,7 @@ static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream,
snd_soc_dpcm_get_substream(be, stream);
struct snd_soc_pcm_runtime *rtd;
struct snd_soc_dai *codec_dai;
+ struct snd_soc_dai *cpu_dai;
int i;
/* A backend may not have the requested substream */
@@ -1845,11 +1983,13 @@ static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream,
be_substream->runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX;
/* Symmetry only applies if we've got an active stream. */
- if (rtd->cpu_dai->active) {
- err = soc_pcm_apply_symmetry(fe_substream,
- rtd->cpu_dai);
- if (err < 0)
- return err;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ if (cpu_dai->active) {
+ err = soc_pcm_apply_symmetry(fe_substream,
+ cpu_dai);
+ if (err < 0)
+ return err;
+ }
}
for_each_rtd_codec_dai(rtd, i, codec_dai) {
@@ -2836,7 +2976,7 @@ static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream)
int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
{
struct snd_soc_dai *codec_dai;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
struct snd_soc_component *component;
struct snd_pcm *pcm;
char new_name[64];
@@ -2848,12 +2988,20 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
capture = rtd->dai_link->dpcm_capture;
} else {
/* Adapt stream for codec2codec links */
- struct snd_soc_pcm_stream *cpu_capture = rtd->dai_link->params ?
- &cpu_dai->driver->playback : &cpu_dai->driver->capture;
- struct snd_soc_pcm_stream *cpu_playback = rtd->dai_link->params ?
- &cpu_dai->driver->capture : &cpu_dai->driver->playback;
+ struct snd_soc_pcm_stream *cpu_capture;
+ struct snd_soc_pcm_stream *cpu_playback;
for_each_rtd_codec_dai(rtd, i, codec_dai) {
+ if (rtd->num_cpus == 1) {
+ cpu_dai = rtd->cpu_dais[0];
+ } else if (rtd->num_cpus == rtd->num_codecs) {
+ cpu_dai = rtd->cpu_dais[i];
+ } else {
+ dev_err(rtd->card->dev,
+ "N cpus to M codecs link is not supported yet\n");
+ return -EINVAL;
+ }
+
if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_PLAYBACK) &&
snd_soc_dai_stream_valid(cpu_dai, SNDRV_PCM_STREAM_PLAYBACK))
playback = 1;
@@ -2862,8 +3010,17 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
capture = 1;
}
- capture = capture && cpu_capture->channels_min;
- playback = playback && cpu_playback->channels_min;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ if (rtd->dai_link->params) {
+ cpu_capture = &cpu_dai->driver->playback;
+ cpu_playback = &cpu_dai->driver->capture;
+ } else {
+ cpu_capture = &cpu_dai->driver->capture;
+ cpu_playback = &cpu_dai->driver->playback;
+ }
+ capture = capture && cpu_capture->channels_min;
+ playback = playback && cpu_playback->channels_min;
+ }
}
if (rtd->dai_link->playback_only) {
@@ -2977,7 +3134,7 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
out:
dev_info(rtd->card->dev, "%s <-> %s mapping ok\n",
(rtd->num_codecs > 1) ? "multicodec" : rtd->codec_dai->name,
- cpu_dai->name);
+ (rtd->num_cpus > 1) ? "multicpu" : rtd->cpu_dai->name);
return ret;
}
--
2.17.1
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