* [alsa-devel] [PATCH RFC v3 1/4] ASoC: Add initial support for multiple CPU DAIs
2020-01-16 20:26 [alsa-devel] [PATCH RFC v3 0/4] ASoC: Add Multi CPU DAI support Bard liao
@ 2020-01-16 20:26 ` Bard liao
2020-01-16 20:26 ` [alsa-devel] [PATCH RFC v3 2/4] ASoC: Add multiple CPU DAI support for PCM ops Bard liao
` (3 subsequent siblings)
4 siblings, 0 replies; 10+ messages in thread
From: Bard liao @ 2020-01-16 20:26 UTC (permalink / raw)
To: broonie, tiwai
Cc: liam.r.girdwood, alsa-devel, bard.liao, pierre-louis.bossart,
kuninori.morimoto.gx
From: Shreyas NC <shreyas.nc@intel.com>
ASoC core supports multiple codec DAIs but supports only a CPU DAI.
To support multiple cpu DAIs, add cpu_dai and num_cpu_dai in
snd_soc_dai_link and snd_soc_pcm_runtime structures similar to
support for codec_dai. This is intended as a preparatory patch to
eventually support the unification of the Codec and CPU DAI.
Inline with multiple codec DAI approach, add support to allocate,
init, bind and probe multiple cpu_dai on init if driver specifies
that. Also add support to loop over multiple cpu_dai during
suspend and resume.
This is intended as a preparatory patch to eventually unify the CPU
and Codec DAI into DAI components.
Signed-off-by: Shreyas NC <shreyas.nc@intel.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
include/sound/soc.h | 15 ++++
sound/soc/soc-core.c | 205 ++++++++++++++++++++++++-------------------
2 files changed, 129 insertions(+), 91 deletions(-)
diff --git a/include/sound/soc.h b/include/sound/soc.h
index f0e4f36f83bf..4163f5e06126 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -855,6 +855,11 @@ struct snd_soc_dai_link {
((platform) = &link->platforms[i]); \
(i)++)
+#define for_each_link_cpus(link, i, cpu) \
+ for ((i) = 0; \
+ ((i) < link->num_cpus) && ((cpu) = &link->cpus[i]); \
+ (i)++)
+
/*
* Sample 1 : Single CPU/Codec/Platform
*
@@ -1132,6 +1137,9 @@ struct snd_soc_pcm_runtime {
struct snd_soc_dai **codec_dais;
unsigned int num_codecs;
+ struct snd_soc_dai **cpu_dais;
+ unsigned int num_cpus;
+
struct delayed_work delayed_work;
void (*close_delayed_work_func)(struct snd_soc_pcm_runtime *rtd);
#ifdef CONFIG_DEBUG_FS
@@ -1159,6 +1167,13 @@ struct snd_soc_pcm_runtime {
#define for_each_rtd_codec_dai_rollback(rtd, i, dai) \
for (; ((--i) >= 0) && ((dai) = rtd->codec_dais[i]);)
+#define for_each_rtd_cpu_dai(rtd, i, dai)\
+ for ((i) = 0; \
+ ((i) < rtd->num_cpus) && ((dai) = rtd->cpu_dais[i]); \
+ (i)++)
+#define for_each_rtd_cpu_dai_rollback(rtd, i, dai) \
+ for (; ((--i) >= 0) && ((dai) = rtd->cpu_dais[i]);)
+
void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd);
/* mixer control */
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index acf6f141fd2d..ac3d1650c913 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -483,6 +483,14 @@ static struct snd_soc_pcm_runtime *soc_new_pcm_runtime(
if (!rtd->codec_dais)
goto free_rtd;
+ /*
+ * for rtd->cpu_dais
+ */
+ rtd->cpu_dais = devm_kcalloc(dev, dai_link->num_cpus,
+ sizeof(struct snd_soc_dai *),
+ GFP_KERNEL);
+ if (!rtd->cpu_dais)
+ goto free_rtd;
/*
* rtd remaining settings
*/
@@ -559,13 +567,15 @@ int snd_soc_suspend(struct device *dev)
card->suspend_pre(card);
for_each_card_rtds(card, rtd) {
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
if (rtd->dai_link->ignore_suspend)
continue;
- if (!cpu_dai->driver->bus_control)
- snd_soc_dai_suspend(cpu_dai);
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ if (!cpu_dai->driver->bus_control)
+ snd_soc_dai_suspend(cpu_dai);
+ }
}
/* close any waiting streams */
@@ -640,13 +650,14 @@ int snd_soc_suspend(struct device *dev)
}
for_each_card_rtds(card, rtd) {
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
if (rtd->dai_link->ignore_suspend)
continue;
- if (cpu_dai->driver->bus_control)
- snd_soc_dai_suspend(cpu_dai);
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ if (cpu_dai->driver->bus_control)
+ snd_soc_dai_suspend(cpu_dai);
}
if (card->suspend_post)
@@ -684,13 +695,15 @@ static void soc_resume_deferred(struct work_struct *work)
/* resume control bus DAIs */
for_each_card_rtds(card, rtd) {
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
if (rtd->dai_link->ignore_suspend)
continue;
- if (cpu_dai->driver->bus_control)
- snd_soc_dai_resume(cpu_dai);
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ if (cpu_dai->driver->bus_control)
+ snd_soc_dai_resume(cpu_dai);
+ }
}
for_each_card_components(card, component) {
@@ -727,13 +740,15 @@ static void soc_resume_deferred(struct work_struct *work)
}
for_each_card_rtds(card, rtd) {
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
if (rtd->dai_link->ignore_suspend)
continue;
- if (!cpu_dai->driver->bus_control)
- snd_soc_dai_resume(cpu_dai);
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ if (!cpu_dai->driver->bus_control)
+ snd_soc_dai_resume(cpu_dai);
+ }
}
if (card->resume_post)
@@ -773,9 +788,11 @@ int snd_soc_resume(struct device *dev)
* due to I/O costs and anti-pop so handle them out of line.
*/
for_each_card_rtds(card, rtd) {
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
+ int i;
- bus_control |= cpu_dai->driver->bus_control;
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ bus_control |= cpu_dai->driver->bus_control;
}
if (bus_control) {
dev_dbg(dev, "ASoC: Resuming control bus master immediately\n");
@@ -900,7 +917,7 @@ static int soc_dai_link_sanity_check(struct snd_soc_card *card,
struct snd_soc_dai_link *link)
{
int i;
- struct snd_soc_dai_link_component *codec, *platform;
+ struct snd_soc_dai_link_component *cpu, *codec, *platform;
for_each_link_codecs(link, i, codec) {
/*
@@ -949,44 +966,38 @@ static int soc_dai_link_sanity_check(struct snd_soc_card *card,
return -EPROBE_DEFER;
}
- /* FIXME */
- if (link->num_cpus > 1) {
- dev_err(card->dev,
- "ASoC: multi cpu is not yet supported %s\n",
- link->name);
- return -EINVAL;
- }
-
- /*
- * CPU device may be specified by either name or OF node, but
- * can be left unspecified, and will be matched based on DAI
- * name alone..
- */
- if (link->cpus->name && link->cpus->of_node) {
- dev_err(card->dev,
- "ASoC: Neither/both cpu name/of_node are set for %s\n",
- link->name);
- return -EINVAL;
- }
+ for_each_link_cpus(link, i, cpu) {
+ /*
+ * CPU device may be specified by either name or OF node, but
+ * can be left unspecified, and will be matched based on DAI
+ * name alone..
+ */
+ if (cpu->name && cpu->of_node) {
+ dev_err(card->dev,
+ "ASoC: Neither/both cpu name/of_node are set for %s\n",
+ link->name);
+ return -EINVAL;
+ }
- /*
- * Defer card registration if cpu dai component is not added to
- * component list.
- */
- if ((link->cpus->of_node || link->cpus->name) &&
- !soc_find_component(link->cpus))
- return -EPROBE_DEFER;
+ /*
+ * Defer card registration if cpu dai component is not added to
+ * component list.
+ */
+ if ((cpu->of_node || cpu->name) &&
+ !soc_find_component(cpu))
+ return -EPROBE_DEFER;
- /*
- * At least one of CPU DAI name or CPU device name/node must be
- * specified
- */
- if (!link->cpus->dai_name &&
- !(link->cpus->name || link->cpus->of_node)) {
- dev_err(card->dev,
- "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n",
- link->name);
- return -EINVAL;
+ /*
+ * At least one of CPU DAI name or CPU device name/node must be
+ * specified
+ */
+ if (!cpu->dai_name &&
+ !(cpu->name || cpu->of_node)) {
+ dev_err(card->dev,
+ "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n",
+ link->name);
+ return -EINVAL;
+ }
}
return 0;
@@ -1029,7 +1040,7 @@ int snd_soc_add_pcm_runtime(struct snd_soc_card *card,
struct snd_soc_dai_link *dai_link)
{
struct snd_soc_pcm_runtime *rtd;
- struct snd_soc_dai_link_component *codec, *platform;
+ struct snd_soc_dai_link_component *codec, *platform, *cpu;
struct snd_soc_component *component;
int i, ret;
@@ -1054,14 +1065,19 @@ int snd_soc_add_pcm_runtime(struct snd_soc_card *card,
if (!rtd)
return -ENOMEM;
- /* FIXME: we need multi CPU support in the future */
- rtd->cpu_dai = snd_soc_find_dai(dai_link->cpus);
- if (!rtd->cpu_dai) {
- dev_info(card->dev, "ASoC: CPU DAI %s not registered\n",
- dai_link->cpus->dai_name);
- goto _err_defer;
+ rtd->num_cpus = dai_link->num_cpus;
+ for_each_link_cpus(dai_link, i, cpu) {
+ rtd->cpu_dais[i] = snd_soc_find_dai(cpu);
+ if (!rtd->cpu_dais[i]) {
+ dev_info(card->dev, "ASoC: CPU DAI %s not registered\n",
+ cpu->dai_name);
+ goto _err_defer;
+ }
+ snd_soc_rtd_add_component(rtd, rtd->cpu_dais[i]->component);
}
- snd_soc_rtd_add_component(rtd, rtd->cpu_dai->component);
+
+ /* Single cpu links expect cpu and cpu_dai in runtime data */
+ rtd->cpu_dai = rtd->cpu_dais[0];
/* Find CODEC from registered CODECs */
rtd->num_codecs = dai_link->num_codecs;
@@ -1181,7 +1197,8 @@ static int soc_init_pcm_runtime(struct snd_soc_card *card,
dai_link->stream_name, ret);
return ret;
}
- ret = soc_dai_pcm_new(&cpu_dai, 1, rtd);
+ ret = soc_dai_pcm_new(rtd->cpu_dais,
+ rtd->num_cpus, rtd);
if (ret < 0)
return ret;
ret = soc_dai_pcm_new(rtd->codec_dais,
@@ -1373,6 +1390,7 @@ static void soc_remove_link_dais(struct snd_soc_card *card)
{
int i;
struct snd_soc_dai *codec_dai;
+ struct snd_soc_dai *cpu_dai;
struct snd_soc_pcm_runtime *rtd;
int order;
@@ -1382,14 +1400,15 @@ static void soc_remove_link_dais(struct snd_soc_card *card)
for_each_rtd_codec_dai(rtd, i, codec_dai)
soc_remove_dai(codec_dai, order);
- soc_remove_dai(rtd->cpu_dai, order);
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ soc_remove_dai(cpu_dai, order);
}
}
}
static int soc_probe_link_dais(struct snd_soc_card *card)
{
- struct snd_soc_dai *codec_dai;
+ struct snd_soc_dai *codec_dai, *cpu_dai;
struct snd_soc_pcm_runtime *rtd;
int i, order, ret;
@@ -1400,9 +1419,12 @@ static int soc_probe_link_dais(struct snd_soc_card *card)
"ASoC: probe %s dai link %d late %d\n",
card->name, rtd->num, order);
- ret = soc_probe_dai(rtd->cpu_dai, order);
- if (ret)
- return ret;
+ /* probe the CPU DAI */
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ ret = soc_probe_dai(cpu_dai, order);
+ if (ret)
+ return ret;
+ }
/* probe the CODEC DAI */
for_each_rtd_codec_dai(rtd, i, codec_dai) {
@@ -1534,8 +1556,9 @@ static void soc_remove_aux_devices(struct snd_soc_card *card)
int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd,
unsigned int dai_fmt)
{
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *cpu_dai;
struct snd_soc_dai *codec_dai;
+ unsigned int inv_dai_fmt;
unsigned int i;
int ret;
@@ -1552,33 +1575,33 @@ int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd,
* Flip the polarity for the "CPU" end of a CODEC<->CODEC link
* the component which has non_legacy_dai_naming is Codec
*/
- if (cpu_dai->component->driver->non_legacy_dai_naming) {
- unsigned int inv_dai_fmt;
-
- inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK;
- switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBM_CFM:
- inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
- break;
- case SND_SOC_DAIFMT_CBM_CFS:
- inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
- break;
- case SND_SOC_DAIFMT_CBS_CFM:
- inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
- break;
- case SND_SOC_DAIFMT_CBS_CFS:
- inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
- break;
- }
-
- dai_fmt = inv_dai_fmt;
+ inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK;
+ switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFS:
+ inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFM:
+ inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
+ break;
}
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ unsigned int fmt = dai_fmt;
- ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt);
- if (ret != 0 && ret != -ENOTSUPP) {
- dev_warn(cpu_dai->dev,
- "ASoC: Failed to set DAI format: %d\n", ret);
- return ret;
+ if (cpu_dai->component->driver->non_legacy_dai_naming)
+ fmt = inv_dai_fmt;
+
+ ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
+ if (ret != 0 && ret != -ENOTSUPP) {
+ dev_warn(cpu_dai->dev,
+ "ASoC: Failed to set DAI format: %d\n", ret);
+ return ret;
+ }
}
return 0;
--
2.17.1
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^ permalink raw reply related [flat|nested] 10+ messages in thread* [alsa-devel] [PATCH RFC v3 2/4] ASoC: Add multiple CPU DAI support for PCM ops
2020-01-16 20:26 [alsa-devel] [PATCH RFC v3 0/4] ASoC: Add Multi CPU DAI support Bard liao
2020-01-16 20:26 ` [alsa-devel] [PATCH RFC v3 1/4] ASoC: Add initial support for multiple CPU DAIs Bard liao
@ 2020-01-16 20:26 ` Bard liao
2020-01-17 11:10 ` Pierre-Louis Bossart
2020-01-16 20:26 ` [alsa-devel] [PATCH RFC v3 3/4] ASoC: Add multiple CPU DAI support in DAPM Bard liao
` (2 subsequent siblings)
4 siblings, 1 reply; 10+ messages in thread
From: Bard liao @ 2020-01-16 20:26 UTC (permalink / raw)
To: broonie, tiwai
Cc: liam.r.girdwood, alsa-devel, bard.liao, pierre-louis.bossart,
kuninori.morimoto.gx
From: Shreyas NC <shreyas.nc@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@kernel.org>
Signed-off-by: Shreyas NC <shreyas.nc@intel.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
sound/soc/soc-pcm.c | 521 +++++++++++++++++++++++++++++---------------
1 file changed, 348 insertions(+), 173 deletions(-)
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 74d340d1c9f7..ae1017637e86 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,
+ bits);
+ }
} else {
for_each_rtd_codec_dai(rtd, i, codec_dai) {
if (codec_dai->driver->capture.sig_bits == 0) {
@@ -341,7 +382,13 @@ 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, bits);
+ }
}
soc_pcm_set_msb(substream, bits);
@@ -354,22 +401,40 @@ 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) {
+ if (!snd_soc_dai_stream_valid(cpu_dai,
+ substream->stream))
+ continue;
+
+ 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 +465,28 @@ 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 +548,10 @@ 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 +563,13 @@ 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 +610,39 @@ 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 +654,7 @@ 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 +682,12 @@ 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 +721,7 @@ 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 +730,21 @@ 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 +779,7 @@ 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 +813,13 @@ 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 +835,8 @@ 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 +881,7 @@ 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 +947,19 @@ 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 +979,17 @@ 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) {
+ if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream))
+ continue;
+
+ snd_soc_dai_hw_free(cpu_dai, substream);
+ cpu_dai->rate = 0;
+ }
+
i = rtd->num_codecs;
codec_err:
@@ -920,20 +1014,23 @@ 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;
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;
+ /* clear all CPU DAIs parameters when inactive */
+ 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;
+ }
}
+ /* clear all CODEC DAIs parameters when inactive */
for_each_rtd_codec_dai(rtd, i, codec_dai) {
if (codec_dai->active == 1) {
codec_dai->rate = 0;
@@ -965,7 +1062,12 @@ 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) {
+ if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream))
+ continue;
+
+ snd_soc_dai_hw_free(cpu_dai, substream);
+ }
mutex_unlock(&rtd->card->pcm_mutex);
return 0;
@@ -975,7 +1077,7 @@ 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 +1093,11 @@ 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 +1112,7 @@ 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 +1122,11 @@ 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 +1169,7 @@ 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 +1179,11 @@ 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 +1195,13 @@ 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 +1212,11 @@ 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 +1342,7 @@ 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 +1353,15 @@ 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 +1375,15 @@ 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 +1433,10 @@ 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 +1448,10 @@ 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 +1494,18 @@ 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 +1804,32 @@ 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) {
+ /*
+ * Skip CPUs which don't support the current stream
+ * type. See soc_pcm_init_runtime_hw() for more details
+ */
+ if (!snd_soc_dai_stream_valid(dai, stream))
+ continue;
- *channels_min = max(*channels_min, cpu_stream->channels_min);
- *channels_max = min(*channels_max, cpu_stream->channels_max);
+ 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);
+ }
/*
* chan min/max cannot be enforced if there are multiple CODEC
@@ -1724,21 +1870,33 @@ 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) {
+ /*
+ * Skip CPUs which don't support the current stream
+ * type. See soc_pcm_init_runtime_hw() for more details
+ */
+ if (!snd_soc_dai_stream_valid(dai, stream))
+ continue;
- *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);
+ 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);
+ }
for_each_rtd_codec_dai(be, i, dai) {
/*
@@ -1767,13 +1925,17 @@ 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 +1993,7 @@ 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 +2008,13 @@ 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 +3001,7 @@ 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];
@@ -2847,23 +3012,33 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
playback = rtd->dai_link->dpcm_playback;
capture = rtd->dai_link->dpcm_capture;
} else {
+ int stream_playback;
+ int stream_capture;
/* 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;
+ if (rtd->dai_link->params) {
+ stream_playback = SNDRV_PCM_STREAM_CAPTURE;
+ stream_capture = SNDRV_PCM_STREAM_PLAYBACK;
+ } else {
+ stream_playback = SNDRV_PCM_STREAM_PLAYBACK;
+ stream_capture = SNDRV_PCM_STREAM_CAPTURE;
+ }
- for_each_rtd_codec_dai(rtd, i, codec_dai) {
- 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;
- if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_CAPTURE) &&
- snd_soc_dai_stream_valid(cpu_dai, SNDRV_PCM_STREAM_CAPTURE))
- capture = 1;
+ playback = 1;
+ capture = 1;
+
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai) {
+ if (!snd_soc_dai_stream_valid(cpu_dai, stream_playback))
+ playback = 0;
+ if (!snd_soc_dai_stream_valid(cpu_dai, stream_capture))
+ capture = 0;
}
- capture = capture && cpu_capture->channels_min;
- playback = playback && cpu_playback->channels_min;
+ for_each_rtd_codec_dai(rtd, i, codec_dai) {
+ if (!snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_PLAYBACK))
+ playback = 0;
+ if (!snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_CAPTURE))
+ capture = 0;
+ }
}
if (rtd->dai_link->playback_only) {
@@ -2977,7 +3152,7 @@ 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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https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
^ permalink raw reply related [flat|nested] 10+ messages in thread* [alsa-devel] [PATCH RFC v3 3/4] ASoC: Add multiple CPU DAI support in DAPM
2020-01-16 20:26 [alsa-devel] [PATCH RFC v3 0/4] ASoC: Add Multi CPU DAI support Bard liao
2020-01-16 20:26 ` [alsa-devel] [PATCH RFC v3 1/4] ASoC: Add initial support for multiple CPU DAIs Bard liao
2020-01-16 20:26 ` [alsa-devel] [PATCH RFC v3 2/4] ASoC: Add multiple CPU DAI support for PCM ops Bard liao
@ 2020-01-16 20:26 ` Bard liao
2020-01-17 11:19 ` Pierre-Louis Bossart
2020-01-16 20:26 ` [alsa-devel] [PATCH RFC v3 4/4] ASoC: return error if the function is not support multi cpu yet Bard liao
2020-01-17 11:27 ` [alsa-devel] [PATCH RFC v3 0/4] ASoC: Add Multi CPU DAI support Pierre-Louis Bossart
4 siblings, 1 reply; 10+ messages in thread
From: Bard liao @ 2020-01-16 20:26 UTC (permalink / raw)
To: broonie, tiwai
Cc: liam.r.girdwood, alsa-devel, bard.liao, pierre-louis.bossart,
kuninori.morimoto.gx
From: Shreyas NC <shreyas.nc@intel.com>
DAPM handles DAIs during soc_dapm_stream_event() and during addition
and creation of DAI widgets i.e., dapm_add_valid_dai_widget() and
dapm_connect_dai_link_widgets().
Extend these functions to handle multiple cpu dai.
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Shreyas NC <shreyas.nc@intel.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
sound/soc/soc-dapm.c | 131 +++++++++++++++++++++++++------------------
1 file changed, 75 insertions(+), 56 deletions(-)
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 442846f12cd4..7a0538b45faf 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -4274,16 +4274,15 @@ int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card)
return 0;
}
-static void dapm_connect_dai_link_widgets(struct snd_soc_card *card,
- struct snd_soc_pcm_runtime *rtd)
+static void dapm_add_valid_dai_widget(struct snd_soc_card *card,
+ struct snd_soc_pcm_runtime *rtd,
+ struct snd_soc_dai *codec_dai,
+ struct snd_soc_dai *cpu_dai)
{
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- struct snd_soc_dai *codec_dai;
struct snd_soc_dapm_widget *playback = NULL, *capture = NULL;
struct snd_soc_dapm_widget *codec, *playback_cpu, *capture_cpu;
struct snd_pcm_substream *substream;
struct snd_pcm_str *streams = rtd->pcm->streams;
- int i;
if (rtd->dai_link->params) {
playback_cpu = cpu_dai->capture_widget;
@@ -4295,64 +4294,82 @@ static void dapm_connect_dai_link_widgets(struct snd_soc_card *card,
capture_cpu = capture;
}
- for_each_rtd_codec_dai(rtd, i, codec_dai) {
- /* connect BE DAI playback if widgets are valid */
- codec = codec_dai->playback_widget;
-
- if (playback_cpu && codec) {
- if (!playback) {
- substream = streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
- playback = snd_soc_dapm_new_dai(card, substream,
- "playback");
- if (IS_ERR(playback)) {
- dev_err(rtd->dev,
- "ASoC: Failed to create DAI %s: %ld\n",
- codec_dai->name,
- PTR_ERR(playback));
- continue;
- }
-
- snd_soc_dapm_add_path(&card->dapm, playback_cpu,
- playback, NULL, NULL);
+ /* connect BE DAI playback if widgets are valid */
+ codec = codec_dai->playback_widget;
+
+ if (playback_cpu && codec) {
+ if (!playback) {
+ substream = streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
+ playback = snd_soc_dapm_new_dai(card, substream,
+ "playback");
+ if (IS_ERR(playback)) {
+ dev_err(rtd->dev,
+ "ASoC: Failed to create DAI %s: %ld\n",
+ codec_dai->name,
+ PTR_ERR(playback));
+ return;
}
- dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n",
- cpu_dai->component->name, playback_cpu->name,
- codec_dai->component->name, codec->name);
-
- snd_soc_dapm_add_path(&card->dapm, playback, codec,
- NULL, NULL);
+ snd_soc_dapm_add_path(&card->dapm, playback_cpu,
+ playback, NULL, NULL);
}
+
+ dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n",
+ cpu_dai->component->name, playback_cpu->name,
+ codec_dai->component->name, codec->name);
+
+ snd_soc_dapm_add_path(&card->dapm, playback, codec,
+ NULL, NULL);
}
- for_each_rtd_codec_dai(rtd, i, codec_dai) {
- /* connect BE DAI capture if widgets are valid */
- codec = codec_dai->capture_widget;
-
- if (codec && capture_cpu) {
- if (!capture) {
- substream = streams[SNDRV_PCM_STREAM_CAPTURE].substream;
- capture = snd_soc_dapm_new_dai(card, substream,
- "capture");
- if (IS_ERR(capture)) {
- dev_err(rtd->dev,
- "ASoC: Failed to create DAI %s: %ld\n",
- codec_dai->name,
- PTR_ERR(capture));
- continue;
- }
-
- snd_soc_dapm_add_path(&card->dapm, capture,
- capture_cpu, NULL, NULL);
- }
+ /* connect BE DAI capture if widgets are valid */
+ codec = codec_dai->capture_widget;
- dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n",
- codec_dai->component->name, codec->name,
- cpu_dai->component->name, capture_cpu->name);
+ if (codec && capture_cpu) {
+ if (!capture) {
+ substream = streams[SNDRV_PCM_STREAM_CAPTURE].substream;
+ capture = snd_soc_dapm_new_dai(card, substream,
+ "capture");
+ if (IS_ERR(capture)) {
+ dev_err(rtd->dev,
+ "ASoC: Failed to create DAI %s: %ld\n",
+ codec_dai->name,
+ PTR_ERR(capture));
+ return;
+ }
- snd_soc_dapm_add_path(&card->dapm, codec, capture,
- NULL, NULL);
+ snd_soc_dapm_add_path(&card->dapm, capture,
+ capture_cpu, NULL, NULL);
}
+
+ dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n",
+ codec_dai->component->name, codec->name,
+ cpu_dai->component->name, capture_cpu->name);
+
+ snd_soc_dapm_add_path(&card->dapm, codec, capture,
+ NULL, NULL);
+ }
+}
+
+static void dapm_connect_dai_link_widgets(struct snd_soc_card *card,
+ struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_dai *codec_dai;
+ int i;
+
+ if (rtd->num_cpus > 1) {
+ if (rtd->num_codecs == rtd->num_cpus)
+ for_each_rtd_codec_dai(rtd, i, codec_dai)
+ dapm_add_valid_dai_widget(card, rtd,
+ codec_dai,
+ rtd->cpu_dais[i]);
+ else
+ dev_err(card->dev,
+ "N cpus to M codecs link is not supported yet\n");
+ } else {
+ for_each_rtd_codec_dai(rtd, i, codec_dai)
+ dapm_add_valid_dai_widget(card, rtd,
+ codec_dai, rtd->cpu_dais[0]);
}
}
@@ -4417,9 +4434,11 @@ static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
int event)
{
struct snd_soc_dai *codec_dai;
+ struct snd_soc_dai *cpu_dai;
int i;
- soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event);
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ soc_dapm_dai_stream_event(cpu_dai, stream, event);
for_each_rtd_codec_dai(rtd, i, codec_dai)
soc_dapm_dai_stream_event(codec_dai, stream, event);
--
2.17.1
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Alsa-devel@alsa-project.org
https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
^ permalink raw reply related [flat|nested] 10+ messages in thread