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Diffstat (limited to 'sound/soc/soc-pcm.c')
-rw-r--r--sound/soc/soc-pcm.c104
1 files changed, 70 insertions, 34 deletions
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index cdc860a..0ad8dca 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -63,6 +63,41 @@ static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream,
}
/*
+ * List of sample sizes that might go over the bus for parameter
+ * application. There ought to be a wildcard sample size for things
+ * like the DAC/ADC resolution to use but there isn't right now.
+ */
+static int sample_sizes[] = {
+ 24, 32,
+};
+
+static void soc_pcm_apply_msb(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ int ret, i, bits;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ bits = dai->driver->playback.sig_bits;
+ else
+ bits = dai->driver->capture.sig_bits;
+
+ if (!bits)
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(sample_sizes); i++) {
+ if (bits >= sample_sizes[i])
+ continue;
+
+ ret = snd_pcm_hw_constraint_msbits(substream->runtime, 0,
+ sample_sizes[i], bits);
+ if (ret != 0)
+ dev_warn(dai->dev,
+ "Failed to set MSB %d/%d: %d\n",
+ bits, sample_sizes[i], ret);
+ }
+}
+
+/*
* Called by ALSA when a PCM substream is opened, the runtime->hw record is
* then initialized and any private data can be allocated. This also calls
* startup for the cpu DAI, platform, machine and codec DAI.
@@ -88,8 +123,8 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
if (cpu_dai->driver->ops->startup) {
ret = cpu_dai->driver->ops->startup(substream, cpu_dai);
if (ret < 0) {
- printk(KERN_ERR "asoc: can't open interface %s\n",
- cpu_dai->name);
+ dev_err(cpu_dai->dev, "can't open interface %s: %d\n",
+ cpu_dai->name, ret);
goto out;
}
}
@@ -97,7 +132,8 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
if (platform->driver->ops && platform->driver->ops->open) {
ret = platform->driver->ops->open(substream);
if (ret < 0) {
- printk(KERN_ERR "asoc: can't open platform %s\n", platform->name);
+ dev_err(platform->dev, "can't open platform %s: %d\n",
+ platform->name, ret);
goto platform_err;
}
}
@@ -105,8 +141,8 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
if (codec_dai->driver->ops->startup) {
ret = codec_dai->driver->ops->startup(substream, codec_dai);
if (ret < 0) {
- printk(KERN_ERR "asoc: can't open codec %s\n",
- codec_dai->name);
+ dev_err(codec_dai->dev, "can't open codec %s: %d\n",
+ codec_dai->name, ret);
goto codec_dai_err;
}
}
@@ -114,7 +150,8 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
if (rtd->dai_link->ops && rtd->dai_link->ops->startup) {
ret = rtd->dai_link->ops->startup(substream);
if (ret < 0) {
- printk(KERN_ERR "asoc: %s startup failed\n", rtd->dai_link->name);
+ pr_err("asoc: %s startup failed: %d\n",
+ rtd->dai_link->name, ret);
goto machine_err;
}
}
@@ -187,6 +224,9 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
goto config_err;
}
+ soc_pcm_apply_msb(substream, codec_dai);
+ soc_pcm_apply_msb(substream, cpu_dai);
+
/* Symmetry only applies if we've already got an active stream. */
if (cpu_dai->active) {
ret = soc_pcm_apply_symmetry(substream, cpu_dai);
@@ -267,9 +307,8 @@ static void close_delayed_work(struct work_struct *work)
/* are we waiting on this codec DAI stream */
if (codec_dai->pop_wait == 1) {
codec_dai->pop_wait = 0;
- snd_soc_dapm_stream_event(rtd,
- codec_dai->driver->playback.stream_name,
- SND_SOC_DAPM_STREAM_STOP);
+ snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK,
+ codec_dai, SND_SOC_DAPM_STREAM_STOP);
}
mutex_unlock(&rtd->pcm_mutex);
@@ -329,12 +368,13 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
cpu_dai->runtime = NULL;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- if (codec->ignore_pmdown_time ||
+ if (!rtd->pmdown_time || codec->ignore_pmdown_time ||
rtd->dai_link->ignore_pmdown_time) {
/* powered down playback stream now */
snd_soc_dapm_stream_event(rtd,
- codec_dai->driver->playback.stream_name,
- SND_SOC_DAPM_STREAM_STOP);
+ SNDRV_PCM_STREAM_PLAYBACK,
+ codec_dai,
+ SND_SOC_DAPM_STREAM_STOP);
} else {
/* start delayed pop wq here for playback streams */
codec_dai->pop_wait = 1;
@@ -343,9 +383,8 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
}
} else {
/* capture streams can be powered down now */
- snd_soc_dapm_stream_event(rtd,
- codec_dai->driver->capture.stream_name,
- SND_SOC_DAPM_STREAM_STOP);
+ snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE,
+ codec_dai, SND_SOC_DAPM_STREAM_STOP);
}
mutex_unlock(&rtd->pcm_mutex);
@@ -375,7 +414,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) {
ret = rtd->dai_link->ops->prepare(substream);
if (ret < 0) {
- printk(KERN_ERR "asoc: machine prepare error\n");
+ pr_err("asoc: machine prepare error: %d\n", ret);
goto out;
}
}
@@ -383,7 +422,8 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
if (platform->driver->ops && platform->driver->ops->prepare) {
ret = platform->driver->ops->prepare(substream);
if (ret < 0) {
- printk(KERN_ERR "asoc: platform prepare error\n");
+ dev_err(platform->dev, "platform prepare error: %d\n",
+ ret);
goto out;
}
}
@@ -391,7 +431,8 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
if (codec_dai->driver->ops->prepare) {
ret = codec_dai->driver->ops->prepare(substream, codec_dai);
if (ret < 0) {
- printk(KERN_ERR "asoc: codec DAI prepare error\n");
+ dev_err(codec_dai->dev, "DAI prepare error: %d\n",
+ ret);
goto out;
}
}
@@ -399,7 +440,8 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
if (cpu_dai->driver->ops->prepare) {
ret = cpu_dai->driver->ops->prepare(substream, cpu_dai);
if (ret < 0) {
- printk(KERN_ERR "asoc: cpu DAI prepare error\n");
+ dev_err(cpu_dai->dev, "DAI prepare error: %d\n",
+ ret);
goto out;
}
}
@@ -411,14 +453,8 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
cancel_delayed_work(&rtd->delayed_work);
}
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- snd_soc_dapm_stream_event(rtd,
- codec_dai->driver->playback.stream_name,
- SND_SOC_DAPM_STREAM_START);
- else
- snd_soc_dapm_stream_event(rtd,
- codec_dai->driver->capture.stream_name,
- SND_SOC_DAPM_STREAM_START);
+ snd_soc_dapm_stream_event(rtd, substream->stream, codec_dai,
+ SND_SOC_DAPM_STREAM_START);
snd_soc_dai_digital_mute(codec_dai, 0);
@@ -446,7 +482,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) {
ret = rtd->dai_link->ops->hw_params(substream, params);
if (ret < 0) {
- printk(KERN_ERR "asoc: machine hw_params failed\n");
+ pr_err("asoc: machine hw_params failed: %d\n", ret);
goto out;
}
}
@@ -454,8 +490,8 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
if (codec_dai->driver->ops->hw_params) {
ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai);
if (ret < 0) {
- printk(KERN_ERR "asoc: can't set codec %s hw params\n",
- codec_dai->name);
+ dev_err(codec_dai->dev, "can't set %s hw params: %d\n",
+ codec_dai->name, ret);
goto codec_err;
}
}
@@ -463,8 +499,8 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
if (cpu_dai->driver->ops->hw_params) {
ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai);
if (ret < 0) {
- printk(KERN_ERR "asoc: interface %s hw params failed\n",
- cpu_dai->name);
+ dev_err(cpu_dai->dev, "%s hw params failed: %d\n",
+ cpu_dai->name, ret);
goto interface_err;
}
}
@@ -472,8 +508,8 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
if (platform->driver->ops && platform->driver->ops->hw_params) {
ret = platform->driver->ops->hw_params(substream, params);
if (ret < 0) {
- printk(KERN_ERR "asoc: platform %s hw params failed\n",
- platform->name);
+ dev_err(platform->dev, "%s hw params failed: %d\n",
+ platform->name, ret);
goto platform_err;
}
}
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