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-rw-r--r--sound/soc/soc-core.c372
1 files changed, 320 insertions, 52 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index ad7f952..844ae82 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -84,7 +84,7 @@ static int run_delayed_work(struct delayed_work *dwork)
/* codec register dump */
static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf)
{
- int i, step = 1, count = 0;
+ int ret, i, step = 1, count = 0;
if (!codec->reg_cache_size)
return 0;
@@ -101,12 +101,24 @@ static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf)
if (count >= PAGE_SIZE - 1)
break;
- if (codec->display_register)
+ if (codec->display_register) {
count += codec->display_register(codec, buf + count,
PAGE_SIZE - count, i);
- else
- count += snprintf(buf + count, PAGE_SIZE - count,
- "%4x", codec->read(codec, i));
+ } else {
+ /* If the read fails it's almost certainly due to
+ * the register being volatile and the device being
+ * powered off.
+ */
+ ret = codec->read(codec, i);
+ if (ret >= 0)
+ count += snprintf(buf + count,
+ PAGE_SIZE - count,
+ "%4x", ret);
+ else
+ count += snprintf(buf + count,
+ PAGE_SIZE - count,
+ "<no data: %d>", ret);
+ }
if (count >= PAGE_SIZE - 1)
break;
@@ -316,7 +328,7 @@ static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream)
if (codec_dai->symmetric_rates || cpu_dai->symmetric_rates ||
machine->symmetric_rates) {
- dev_dbg(card->dev, "Symmetry forces %dHz rate\n",
+ dev_dbg(card->dev, "Symmetry forces %dHz rate\n",
machine->rate);
ret = snd_pcm_hw_constraint_minmax(substream->runtime,
@@ -405,6 +417,12 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
codec_dai->playback.formats & cpu_dai->playback.formats;
runtime->hw.rates =
codec_dai->playback.rates & cpu_dai->playback.rates;
+ if (codec_dai->playback.rates
+ & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
+ runtime->hw.rates |= cpu_dai->playback.rates;
+ if (cpu_dai->playback.rates
+ & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
+ runtime->hw.rates |= codec_dai->playback.rates;
} else {
runtime->hw.rate_min =
max(codec_dai->capture.rate_min,
@@ -422,6 +440,12 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
codec_dai->capture.formats & cpu_dai->capture.formats;
runtime->hw.rates =
codec_dai->capture.rates & cpu_dai->capture.rates;
+ if (codec_dai->capture.rates
+ & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
+ runtime->hw.rates |= cpu_dai->capture.rates;
+ if (cpu_dai->capture.rates
+ & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
+ runtime->hw.rates |= codec_dai->capture.rates;
}
snd_pcm_limit_hw_rates(runtime);
@@ -455,12 +479,15 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min,
runtime->hw.rate_max);
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- cpu_dai->playback.active = codec_dai->playback.active = 1;
- else
- cpu_dai->capture.active = codec_dai->capture.active = 1;
- cpu_dai->active = codec_dai->active = 1;
- cpu_dai->runtime = runtime;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ cpu_dai->playback.active++;
+ codec_dai->playback.active++;
+ } else {
+ cpu_dai->capture.active++;
+ codec_dai->capture.active++;
+ }
+ cpu_dai->active++;
+ codec_dai->active++;
card->codec->active++;
mutex_unlock(&pcm_mutex);
return 0;
@@ -536,15 +563,16 @@ static int soc_codec_close(struct snd_pcm_substream *substream)
mutex_lock(&pcm_mutex);
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- cpu_dai->playback.active = codec_dai->playback.active = 0;
- else
- cpu_dai->capture.active = codec_dai->capture.active = 0;
-
- if (codec_dai->playback.active == 0 &&
- codec_dai->capture.active == 0) {
- cpu_dai->active = codec_dai->active = 0;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ cpu_dai->playback.active--;
+ codec_dai->playback.active--;
+ } else {
+ cpu_dai->capture.active--;
+ codec_dai->capture.active--;
}
+
+ cpu_dai->active--;
+ codec_dai->active--;
codec->active--;
/* Muting the DAC suppresses artifacts caused during digital
@@ -564,7 +592,6 @@ static int soc_codec_close(struct snd_pcm_substream *substream)
if (platform->pcm_ops->close)
platform->pcm_ops->close(substream);
- cpu_dai->runtime = NULL;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
/* start delayed pop wq here for playback streams */
@@ -802,6 +829,41 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
return 0;
}
+/*
+ * soc level wrapper for pointer callback
+ * If cpu_dai, codec_dai, platform driver has the delay callback, than
+ * the runtime->delay will be updated accordingly.
+ */
+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_device *socdev = rtd->socdev;
+ struct snd_soc_card *card = socdev->card;
+ struct snd_soc_platform *platform = card->platform;
+ struct snd_soc_dai_link *machine = rtd->dai;
+ struct snd_soc_dai *cpu_dai = machine->cpu_dai;
+ struct snd_soc_dai *codec_dai = machine->codec_dai;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ snd_pcm_uframes_t offset = 0;
+ snd_pcm_sframes_t delay = 0;
+
+ if (platform->pcm_ops->pointer)
+ offset = platform->pcm_ops->pointer(substream);
+
+ if (cpu_dai->ops->delay)
+ delay += cpu_dai->ops->delay(substream, cpu_dai);
+
+ if (codec_dai->ops->delay)
+ delay += codec_dai->ops->delay(substream, codec_dai);
+
+ if (platform->delay)
+ delay += platform->delay(substream, codec_dai);
+
+ runtime->delay = delay;
+
+ return offset;
+}
+
/* ASoC PCM operations */
static struct snd_pcm_ops soc_pcm_ops = {
.open = soc_pcm_open,
@@ -810,6 +872,7 @@ static struct snd_pcm_ops soc_pcm_ops = {
.hw_free = soc_pcm_hw_free,
.prepare = soc_pcm_prepare,
.trigger = soc_pcm_trigger,
+ .pointer = soc_pcm_pointer,
};
#ifdef CONFIG_PM
@@ -843,23 +906,35 @@ static int soc_suspend(struct device *dev)
/* mute any active DAC's */
for (i = 0; i < card->num_links; i++) {
struct snd_soc_dai *dai = card->dai_link[i].codec_dai;
+
+ if (card->dai_link[i].ignore_suspend)
+ continue;
+
if (dai->ops->digital_mute && dai->playback.active)
dai->ops->digital_mute(dai, 1);
}
/* suspend all pcms */
- for (i = 0; i < card->num_links; i++)
+ for (i = 0; i < card->num_links; i++) {
+ if (card->dai_link[i].ignore_suspend)
+ continue;
+
snd_pcm_suspend_all(card->dai_link[i].pcm);
+ }
if (card->suspend_pre)
card->suspend_pre(pdev, PMSG_SUSPEND);
for (i = 0; i < card->num_links; i++) {
struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai;
+
+ if (card->dai_link[i].ignore_suspend)
+ continue;
+
if (cpu_dai->suspend && !cpu_dai->ac97_control)
cpu_dai->suspend(cpu_dai);
if (platform->suspend)
- platform->suspend(cpu_dai);
+ platform->suspend(&card->dai_link[i]);
}
/* close any waiting streams and save state */
@@ -868,6 +943,10 @@ static int soc_suspend(struct device *dev)
for (i = 0; i < codec->num_dai; i++) {
char *stream = codec->dai[i].playback.stream_name;
+
+ if (card->dai_link[i].ignore_suspend)
+ continue;
+
if (stream != NULL)
snd_soc_dapm_stream_event(codec, stream,
SND_SOC_DAPM_STREAM_SUSPEND);
@@ -877,11 +956,26 @@ static int soc_suspend(struct device *dev)
SND_SOC_DAPM_STREAM_SUSPEND);
}
- if (codec_dev->suspend)
- codec_dev->suspend(pdev, PMSG_SUSPEND);
+ /* If there are paths active then the CODEC will be held with
+ * bias _ON and should not be suspended. */
+ if (codec_dev->suspend) {
+ switch (codec->bias_level) {
+ case SND_SOC_BIAS_STANDBY:
+ case SND_SOC_BIAS_OFF:
+ codec_dev->suspend(pdev, PMSG_SUSPEND);
+ break;
+ default:
+ dev_dbg(socdev->dev, "CODEC is on over suspend\n");
+ break;
+ }
+ }
for (i = 0; i < card->num_links; i++) {
struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai;
+
+ if (card->dai_link[i].ignore_suspend)
+ continue;
+
if (cpu_dai->suspend && cpu_dai->ac97_control)
cpu_dai->suspend(cpu_dai);
}
@@ -913,20 +1007,44 @@ static void soc_resume_deferred(struct work_struct *work)
dev_dbg(socdev->dev, "starting resume work\n");
+ /* Bring us up into D2 so that DAPM starts enabling things */
+ snd_power_change_state(codec->card, SNDRV_CTL_POWER_D2);
+
if (card->resume_pre)
card->resume_pre(pdev);
for (i = 0; i < card->num_links; i++) {
struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai;
+
+ if (card->dai_link[i].ignore_suspend)
+ continue;
+
if (cpu_dai->resume && cpu_dai->ac97_control)
cpu_dai->resume(cpu_dai);
}
- if (codec_dev->resume)
- codec_dev->resume(pdev);
+ /* If the CODEC was idle over suspend then it will have been
+ * left with bias OFF or STANDBY and suspended so we must now
+ * resume. Otherwise the suspend was suppressed.
+ */
+ if (codec_dev->resume) {
+ switch (codec->bias_level) {
+ case SND_SOC_BIAS_STANDBY:
+ case SND_SOC_BIAS_OFF:
+ codec_dev->resume(pdev);
+ break;
+ default:
+ dev_dbg(socdev->dev, "CODEC was on over suspend\n");
+ break;
+ }
+ }
for (i = 0; i < codec->num_dai; i++) {
char *stream = codec->dai[i].playback.stream_name;
+
+ if (card->dai_link[i].ignore_suspend)
+ continue;
+
if (stream != NULL)
snd_soc_dapm_stream_event(codec, stream,
SND_SOC_DAPM_STREAM_RESUME);
@@ -939,16 +1057,24 @@ static void soc_resume_deferred(struct work_struct *work)
/* unmute any active DACs */
for (i = 0; i < card->num_links; i++) {
struct snd_soc_dai *dai = card->dai_link[i].codec_dai;
+
+ if (card->dai_link[i].ignore_suspend)
+ continue;
+
if (dai->ops->digital_mute && dai->playback.active)
dai->ops->digital_mute(dai, 0);
}
for (i = 0; i < card->num_links; i++) {
struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai;
+
+ if (card->dai_link[i].ignore_suspend)
+ continue;
+
if (cpu_dai->resume && !cpu_dai->ac97_control)
cpu_dai->resume(cpu_dai);
if (platform->resume)
- platform->resume(cpu_dai);
+ platform->resume(&card->dai_link[i]);
}
if (card->resume_post)
@@ -1193,7 +1319,7 @@ cpu_dai_err:
}
/*
- * Attempt to initialise any uninitalised cards. Must be called with
+ * Attempt to initialise any uninitialised cards. Must be called with
* client_mutex.
*/
static void snd_soc_instantiate_cards(void)
@@ -1233,26 +1359,25 @@ static int soc_remove(struct platform_device *pdev)
struct snd_soc_platform *platform = card->platform;
struct snd_soc_codec_device *codec_dev = socdev->codec_dev;
- if (!card->instantiated)
- return 0;
+ if (card->instantiated) {
+ run_delayed_work(&card->delayed_work);
- run_delayed_work(&card->delayed_work);
+ if (platform->remove)
+ platform->remove(pdev);
- if (platform->remove)
- platform->remove(pdev);
+ if (codec_dev->remove)
+ codec_dev->remove(pdev);
- if (codec_dev->remove)
- codec_dev->remove(pdev);
+ for (i = 0; i < card->num_links; i++) {
+ struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai;
+ if (cpu_dai->remove)
+ cpu_dai->remove(pdev, cpu_dai);
+ }
- for (i = 0; i < card->num_links; i++) {
- struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai;
- if (cpu_dai->remove)
- cpu_dai->remove(pdev, cpu_dai);
+ if (card->remove)
+ card->remove(pdev);
}
- if (card->remove)
- card->remove(pdev);
-
snd_soc_unregister_card(card);
return 0;
@@ -1336,7 +1461,6 @@ static int soc_new_pcm(struct snd_soc_device *socdev,
dai_link->pcm = pcm;
pcm->private_data = rtd;
soc_pcm_ops.mmap = platform->pcm_ops->mmap;
- soc_pcm_ops.pointer = platform->pcm_ops->pointer;
soc_pcm_ops.ioctl = platform->pcm_ops->ioctl;
soc_pcm_ops.copy = platform->pcm_ops->copy;
soc_pcm_ops.silence = platform->pcm_ops->silence;
@@ -1906,18 +2030,22 @@ int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
- int max = mc->max;
+ int platform_max;
unsigned int shift = mc->shift;
unsigned int rshift = mc->rshift;
- if (max == 1 && !strstr(kcontrol->id.name, " Volume"))
+ if (!mc->platform_max)
+ mc->platform_max = mc->max;
+ platform_max = mc->platform_max;
+
+ if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
else
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = shift == rshift ? 1 : 2;
uinfo->value.integer.min = 0;
- uinfo->value.integer.max = max;
+ uinfo->value.integer.max = platform_max;
return 0;
}
EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
@@ -2015,16 +2143,20 @@ int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol,
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
- int max = mc->max;
+ int platform_max;
- if (max == 1 && !strstr(kcontrol->id.name, " Volume"))
+ if (!mc->platform_max)
+ mc->platform_max = mc->max;
+ platform_max = mc->platform_max;
+
+ if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
else
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0;
- uinfo->value.integer.max = max;
+ uinfo->value.integer.max = platform_max;
return 0;
}
EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r);
@@ -2125,13 +2257,17 @@ int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
- int max = mc->max;
+ int platform_max;
int min = mc->min;
+ if (!mc->platform_max)
+ mc->platform_max = mc->max;
+ platform_max = mc->platform_max;
+
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0;
- uinfo->value.integer.max = max-min;
+ uinfo->value.integer.max = platform_max - min;
return 0;
}
EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8);
@@ -2190,6 +2326,138 @@ int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8);
/**
+ * snd_soc_limit_volume - Set new limit to an existing volume control.
+ *
+ * @codec: where to look for the control
+ * @name: Name of the control
+ * @max: new maximum limit
+ *
+ * Return 0 for success, else error.
+ */
+int snd_soc_limit_volume(struct snd_soc_codec *codec,
+ const char *name, int max)
+{
+ struct snd_card *card = codec->card;
+ struct snd_kcontrol *kctl;
+ struct soc_mixer_control *mc;
+ int found = 0;
+ int ret = -EINVAL;
+
+ /* Sanity check for name and max */
+ if (unlikely(!name || max <= 0))
+ return -EINVAL;
+
+ list_for_each_entry(kctl, &card->controls, list) {
+ if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) {
+ found = 1;
+ break;
+ }
+ }
+ if (found) {
+ mc = (struct soc_mixer_control *)kctl->private_value;
+ if (max <= mc->max) {
+ mc->platform_max = max;
+ ret = 0;
+ }
+ }
+ return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_limit_volume);
+
+/**
+ * snd_soc_info_volsw_2r_sx - double with tlv and variable data size
+ * mixer info callback
+ * @kcontrol: mixer control
+ * @uinfo: control element information
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ int max = mc->max;
+ int min = mc->min;
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 2;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = max-min;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r_sx);
+
+/**
+ * snd_soc_get_volsw_2r_sx - double with tlv and variable data size
+ * mixer get callback
+ * @kcontrol: mixer control
+ * @uinfo: control element information
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ unsigned int mask = (1<<mc->shift)-1;
+ int min = mc->min;
+ int val = snd_soc_read(codec, mc->reg) & mask;
+ int valr = snd_soc_read(codec, mc->rreg) & mask;
+
+ ucontrol->value.integer.value[0] = ((val & 0xff)-min) & mask;
+ ucontrol->value.integer.value[1] = ((valr & 0xff)-min) & mask;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_get_volsw_2r_sx);
+
+/**
+ * snd_soc_put_volsw_2r_sx - double with tlv and variable data size
+ * mixer put callback
+ * @kcontrol: mixer control
+ * @uinfo: control element information
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ unsigned int mask = (1<<mc->shift)-1;
+ int min = mc->min;
+ int ret;
+ unsigned int val, valr, oval, ovalr;
+
+ val = ((ucontrol->value.integer.value[0]+min) & 0xff);
+ val &= mask;
+ valr = ((ucontrol->value.integer.value[1]+min) & 0xff);
+ valr &= mask;
+
+ oval = snd_soc_read(codec, mc->reg) & mask;
+ ovalr = snd_soc_read(codec, mc->rreg) & mask;
+
+ ret = 0;
+ if (oval != val) {
+ ret = snd_soc_write(codec, mc->reg, val);
+ if (ret < 0)
+ return ret;
+ }
+ if (ovalr != valr) {
+ ret = snd_soc_write(codec, mc->rreg, valr);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r_sx);
+
+/**
* snd_soc_dai_set_sysclk - configure DAI system or master clock.
* @dai: DAI
* @clk_id: DAI specific clock ID
generated by cgit v1.1 at 2025-01-30 04:03:31 +0000