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-rw-r--r--sound/soc/soc-core.c10
-rw-r--r--sound/soc/soc-io.c4
-rw-r--r--sound/soc/soc-pcm.c156
-rw-r--r--sound/soc/soc-utils.c4
4 files changed, 139 insertions, 35 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index a66783e13a9c..be88df5eeaf7 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -4617,10 +4617,14 @@ int snd_soc_of_get_dai_name(struct device_node *of_node,
if (id < 0 || id >= pos->num_dai) {
ret = -EINVAL;
- } else {
- *dai_name = pos->dai_drv[id].name;
- ret = 0;
+ break;
}
+
+ ret = 0;
+
+ *dai_name = pos->dai_drv[id].name;
+ if (!*dai_name)
+ *dai_name = pos->name;
}
break;
diff --git a/sound/soc/soc-io.c b/sound/soc/soc-io.c
index 4f11d23f2062..aa886cca3ecf 100644
--- a/sound/soc/soc-io.c
+++ b/sound/soc/soc-io.c
@@ -99,14 +99,14 @@ int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
config.val_bits = data_bits;
switch (control) {
-#if defined(CONFIG_REGMAP_I2C) || defined(CONFIG_REGMAP_I2C_MODULE)
+#if IS_ENABLED(CONFIG_REGMAP_I2C)
case SND_SOC_I2C:
codec->control_data = regmap_init_i2c(to_i2c_client(codec->dev),
&config);
break;
#endif
-#if defined(CONFIG_REGMAP_SPI) || defined(CONFIG_REGMAP_SPI_MODULE)
+#if IS_ENABLED(CONFIG_REGMAP_SPI)
case SND_SOC_SPI:
codec->control_data = regmap_init_spi(to_spi_device(codec->dev),
&config);
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 891b9a9bcbf8..604e7e9a2ef8 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -84,35 +84,117 @@ static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream,
struct snd_soc_pcm_runtime *rtd = substream->private_data;
int ret;
- if (!soc_dai->driver->symmetric_rates &&
- !rtd->dai_link->symmetric_rates)
- return 0;
+ if (soc_dai->rate && (soc_dai->driver->symmetric_rates ||
+ rtd->dai_link->symmetric_rates)) {
+ dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %dHz rate\n",
+ soc_dai->rate);
+
+ ret = snd_pcm_hw_constraint_minmax(substream->runtime,
+ SNDRV_PCM_HW_PARAM_RATE,
+ soc_dai->rate, soc_dai->rate);
+ if (ret < 0) {
+ dev_err(soc_dai->dev,
+ "ASoC: Unable to apply rate constraint: %d\n",
+ ret);
+ return ret;
+ }
+ }
- /* This can happen if multiple streams are starting simultaneously -
- * the second can need to get its constraints before the first has
- * picked a rate. Complain and allow the application to carry on.
- */
- if (!soc_dai->rate) {
- dev_warn(soc_dai->dev,
- "ASoC: Not enforcing symmetric_rates due to race\n");
- return 0;
+ if (soc_dai->channels && (soc_dai->driver->symmetric_channels ||
+ rtd->dai_link->symmetric_channels)) {
+ dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d channel(s)\n",
+ soc_dai->channels);
+
+ ret = snd_pcm_hw_constraint_minmax(substream->runtime,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ soc_dai->channels,
+ soc_dai->channels);
+ if (ret < 0) {
+ dev_err(soc_dai->dev,
+ "ASoC: Unable to apply channel symmetry constraint: %d\n",
+ ret);
+ return ret;
+ }
}
- dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %dHz rate\n", soc_dai->rate);
+ if (soc_dai->sample_bits && (soc_dai->driver->symmetric_samplebits ||
+ rtd->dai_link->symmetric_samplebits)) {
+ dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d sample bits\n",
+ soc_dai->sample_bits);
- ret = snd_pcm_hw_constraint_minmax(substream->runtime,
- SNDRV_PCM_HW_PARAM_RATE,
- soc_dai->rate, soc_dai->rate);
- if (ret < 0) {
- dev_err(soc_dai->dev,
- "ASoC: Unable to apply rate symmetry constraint: %d\n",
- ret);
- return ret;
+ ret = snd_pcm_hw_constraint_minmax(substream->runtime,
+ SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
+ soc_dai->sample_bits,
+ soc_dai->sample_bits);
+ if (ret < 0) {
+ dev_err(soc_dai->dev,
+ "ASoC: Unable to apply sample bits symmetry constraint: %d\n",
+ ret);
+ return ret;
+ }
}
return 0;
}
+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 *codec_dai = rtd->codec_dai;
+ unsigned int rate, channels, sample_bits, symmetry;
+
+ rate = params_rate(params);
+ channels = params_channels(params);
+ sample_bits = snd_pcm_format_physical_width(params_format(params));
+
+ /* reject unmatched parameters when applying symmetry */
+ symmetry = cpu_dai->driver->symmetric_rates ||
+ codec_dai->driver->symmetric_rates ||
+ rtd->dai_link->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;
+ }
+
+ symmetry = cpu_dai->driver->symmetric_channels ||
+ codec_dai->driver->symmetric_channels ||
+ rtd->dai_link->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;
+ }
+
+ symmetry = cpu_dai->driver->symmetric_samplebits ||
+ codec_dai->driver->symmetric_samplebits ||
+ rtd->dai_link->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;
+ }
+
+ return 0;
+}
+
+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_driver *codec_driver = rtd->codec_dai->driver;
+ struct snd_soc_dai_link *link = rtd->dai_link;
+
+ return cpu_driver->symmetric_rates || codec_driver->symmetric_rates ||
+ link->symmetric_rates || cpu_driver->symmetric_channels ||
+ codec_driver->symmetric_channels || link->symmetric_channels ||
+ cpu_driver->symmetric_samplebits ||
+ codec_driver->symmetric_samplebits ||
+ link->symmetric_samplebits;
+}
+
/*
* List of sample sizes that might go over the bus for parameter
* application. There ought to be a wildcard sample size for things
@@ -249,6 +331,9 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
&cpu_dai_drv->capture);
}
+ 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",
@@ -396,11 +481,6 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
if (!codec_dai->active)
codec_dai->rate = 0;
- /* Muting the DAC suppresses artifacts caused during digital
- * shutdown, for example from stopping clocks.
- */
- snd_soc_dai_digital_mute(codec_dai, 1, substream->stream);
-
if (cpu_dai->driver->ops->shutdown)
cpu_dai->driver->ops->shutdown(substream, cpu_dai);
@@ -531,6 +611,10 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
+ ret = soc_pcm_params_symmetry(substream, params);
+ if (ret)
+ goto out;
+
if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) {
ret = rtd->dai_link->ops->hw_params(substream, params);
if (ret < 0) {
@@ -567,9 +651,16 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
}
}
- /* store the rate for each DAIs */
+ /* 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));
+
codec_dai->rate = params_rate(params);
+ codec_dai->channels = params_channels(params);
+ codec_dai->sample_bits =
+ snd_pcm_format_physical_width(params_format(params));
out:
mutex_unlock(&rtd->pcm_mutex);
@@ -604,6 +695,19 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
mutex_lock_nested(&rtd->pcm_mutex, rtd->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;
+ }
+
+ if (codec_dai->active == 1) {
+ codec_dai->rate = 0;
+ codec_dai->channels = 0;
+ codec_dai->sample_bits = 0;
+ }
+
/* apply codec digital mute */
if ((playback && codec_dai->playback_active == 1) ||
(!playback && codec_dai->capture_active == 1))
diff --git a/sound/soc/soc-utils.c b/sound/soc/soc-utils.c
index 5e633659c1b3..6ebdfd9a1a1d 100644
--- a/sound/soc/soc-utils.c
+++ b/sound/soc/soc-utils.c
@@ -59,10 +59,6 @@ int snd_soc_params_to_bclk(struct snd_pcm_hw_params *params)
EXPORT_SYMBOL_GPL(snd_soc_params_to_bclk);
static const struct snd_pcm_hardware dummy_dma_hardware = {
- .formats = 0xffffffff,
- .channels_min = 1,
- .channels_max = UINT_MAX,
-
/* Random values to keep userspace happy when checking constraints */
.info = SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER,
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-25 06:29:58 +0300