* dynamic configuration of codec internal audio paths and active
* DACs/ADCs.
* o Platform power domain - can support external components i.e. amps and
- * mic/meadphone insertion events.
+ * mic/headphone insertion events.
* o Automatic Mic Bias support
* o Jack insertion power event initiation - e.g. hp insertion will enable
* sinks, dacs, etc
- * o Delayed powerdown of audio susbsystem to reduce pops between a quick
+ * o Delayed power down of audio subsystem to reduce pops between a quick
* device reopen.
*
- * Todo:
- * o DAPM power change sequencing - allow for configurable per
- * codec sequences.
- * o Support for analogue bias optimisation.
- * o Support for reduced codec oversampling rates.
- * o Support for reduced codec bias currents.
*/
#include <linux/module.h>
return NULL;
}
+static void dapm_reset(struct snd_soc_card *card)
+{
+ struct snd_soc_dapm_widget *w;
+
+ memset(&card->dapm_stats, 0, sizeof(card->dapm_stats));
+
+ list_for_each_entry(w, &card->widgets, list) {
+ w->power_checked = false;
+ w->inputs = -1;
+ w->outputs = -1;
+ }
+}
+
static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg)
{
if (w->codec)
}
}
- memset(&card->dapm_stats, 0, sizeof(card->dapm_stats));
-
- list_for_each_entry(w, &card->widgets, list) {
- w->power_checked = false;
- w->inputs = -1;
- w->outputs = -1;
- }
+ dapm_reset(card);
/* Check which widgets we need to power and store them in
* lists indicating if they should be powered up or down. We
/* Supplies and micbiases only bring the
* context up to STANDBY as unless something
* else is active and passing audio they
- * generally don't require full power.
+ * generally don't require full power. Signal
+ * generators are virtual pins and have no
+ * power impact themselves.
*/
switch (w->id) {
+ case snd_soc_dapm_siggen:
+ break;
case snd_soc_dapm_supply:
case snd_soc_dapm_regulator_supply:
case snd_soc_dapm_micbias:
&async_domain);
async_synchronize_full_domain(&async_domain);
+ /* do we need to notify any clients that DAPM event is complete */
+ list_for_each_entry(d, &card->dapm_list, list) {
+ if (d->stream_event)
+ d->stream_event(d, event);
+ }
+
pop_dbg(dapm->dev, card->pop_time,
"DAPM sequencing finished, waiting %dms\n", card->pop_time);
pop_wait(card->pop_time);
#endif
/* test and update the power status of a mux widget */
-static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget,
- struct snd_kcontrol *kcontrol, int change,
- int mux, struct soc_enum *e)
+int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_widget *widget,
+ struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e)
{
struct snd_soc_dapm_path *path;
int found = 0;
widget->id != snd_soc_dapm_value_mux)
return -ENODEV;
- if (!change)
- return 0;
-
/* find dapm widget path assoc with kcontrol */
list_for_each_entry(path, &widget->dapm->card->paths, list) {
if (path->kcontrol != kcontrol)
return 0;
}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power);
/* test and update the power status of a mixer or switch widget */
-static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
+int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
struct snd_kcontrol *kcontrol, int connect)
{
struct snd_soc_dapm_path *path;
return 0;
}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power);
/* show dapm widget status in sys fs */
static ssize_t dapm_widget_show(struct device *dev,
update.val = val;
widget->dapm->update = &update;
- dapm_mixer_update_power(widget, kcontrol, connect);
+ snd_soc_dapm_mixer_update_power(widget, kcontrol, connect);
widget->dapm->update = NULL;
}
update.val = val;
widget->dapm->update = &update;
- dapm_mux_update_power(widget, kcontrol, change, mux, e);
+ snd_soc_dapm_mux_update_power(widget, kcontrol, mux, e);
widget->dapm->update = NULL;
}
widget->value = ucontrol->value.enumerated.item[0];
- dapm_mux_update_power(widget, kcontrol, change,
- widget->value, e);
+ snd_soc_dapm_mux_update_power(widget, kcontrol, widget->value, e);
}
}
update.val = val;
widget->dapm->update = &update;
- dapm_mux_update_power(widget, kcontrol, change, mux, e);
+ snd_soc_dapm_mux_update_power(widget, kcontrol, mux, e);
widget->dapm->update = NULL;
}
int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
- struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
const char *pin = (const char *)kcontrol->private_value;
- mutex_lock(&codec->mutex);
+ mutex_lock(&card->mutex);
ucontrol->value.integer.value[0] =
- snd_soc_dapm_get_pin_status(&codec->dapm, pin);
+ snd_soc_dapm_get_pin_status(&card->dapm, pin);
- mutex_unlock(&codec->mutex);
+ mutex_unlock(&card->mutex);
return 0;
}
int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
- struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
const char *pin = (const char *)kcontrol->private_value;
- mutex_lock(&codec->mutex);
+ mutex_lock(&card->mutex);
if (ucontrol->value.integer.value[0])
- snd_soc_dapm_enable_pin(&codec->dapm, pin);
+ snd_soc_dapm_enable_pin(&card->dapm, pin);
else
- snd_soc_dapm_disable_pin(&codec->dapm, pin);
+ snd_soc_dapm_disable_pin(&card->dapm, pin);
- snd_soc_dapm_sync(&codec->dapm);
+ snd_soc_dapm_sync(&card->dapm);
- mutex_unlock(&codec->mutex);
+ mutex_unlock(&card->mutex);
return 0;
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch);
-/**
- * snd_soc_dapm_new_control - create new dapm control
- * @dapm: DAPM context
- * @widget: widget template
- *
- * Creates a new dapm control based upon the template.
- *
- * Returns 0 for success else error.
- */
-int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
- const struct snd_soc_dapm_widget *widget)
+static struct snd_soc_dapm_widget *
+snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
+ const struct snd_soc_dapm_widget *widget)
{
struct snd_soc_dapm_widget *w;
size_t name_len;
int ret;
if ((w = dapm_cnew_widget(widget)) == NULL)
- return -ENOMEM;
+ return NULL;
switch (w->id) {
case snd_soc_dapm_regulator_supply:
ret = PTR_ERR(w->priv);
dev_err(dapm->dev, "Failed to request %s: %d\n",
w->name, ret);
- return ret;
+ return NULL;
}
break;
default:
w->name = kmalloc(name_len, GFP_KERNEL);
if (w->name == NULL) {
kfree(w);
- return -ENOMEM;
+ return NULL;
}
if (dapm->codec && dapm->codec->name_prefix)
snprintf(w->name, name_len, "%s %s",
/* machine layer set ups unconnected pins and insertions */
w->connected = 1;
- return 0;
+ return w;
}
-EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control);
/**
* snd_soc_dapm_new_controls - create new dapm controls
const struct snd_soc_dapm_widget *widget,
int num)
{
- int i, ret;
+ struct snd_soc_dapm_widget *w;
+ int i;
for (i = 0; i < num; i++) {
- ret = snd_soc_dapm_new_control(dapm, widget);
- if (ret < 0) {
+ w = snd_soc_dapm_new_control(dapm, widget);
+ if (!w) {
dev_err(dapm->dev,
- "ASoC: Failed to create DAPM control %s: %d\n",
- widget->name, ret);
- return ret;
+ "ASoC: Failed to create DAPM control %s\n",
+ widget->name);
+ return -ENOMEM;
}
widget++;
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls);
static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm,
- const char *stream, int event)
+ int stream, struct snd_soc_dai *dai,
+ int event)
{
struct snd_soc_dapm_widget *w;
+ const char *stream_name;
+
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+ stream_name = dai->driver->playback.stream_name;
+ else
+ stream_name = dai->driver->capture.stream_name;
+
+ if (!stream_name)
+ return;
list_for_each_entry(w, &dapm->card->widgets, list)
{
if (!w->sname || w->dapm != dapm)
continue;
dev_vdbg(w->dapm->dev, "widget %s\n %s stream %s event %d\n",
- w->name, w->sname, stream, event);
- if (strstr(w->sname, stream)) {
+ w->name, w->sname, stream_name, event);
+ if (strstr(w->sname, stream_name)) {
dapm_mark_dirty(w, "stream event");
switch(event) {
case SND_SOC_DAPM_STREAM_START:
}
dapm_power_widgets(dapm, event);
-
- /* do we need to notify any clients that DAPM stream is complete */
- if (dapm->stream_event)
- dapm->stream_event(dapm, event);
}
/**
*
* Returns 0 for success else error.
*/
-int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd,
- const char *stream, int event)
+int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
+ struct snd_soc_dai *dai, int event)
{
struct snd_soc_codec *codec = rtd->codec;
- if (stream == NULL)
- return 0;
-
mutex_lock(&codec->mutex);
- soc_dapm_stream_event(&codec->dapm, stream, event);
+ soc_dapm_stream_event(&codec->dapm, stream, dai, event);
mutex_unlock(&codec->mutex);
return 0;
}