* 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>
#include <linux/jiffies.h>
#include <linux/debugfs.h>
#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
static int dapm_up_seq[] = {
[snd_soc_dapm_pre] = 0,
[snd_soc_dapm_supply] = 1,
+ [snd_soc_dapm_regulator_supply] = 1,
[snd_soc_dapm_micbias] = 2,
+ [snd_soc_dapm_dai] = 3,
[snd_soc_dapm_aif_in] = 3,
[snd_soc_dapm_aif_out] = 3,
[snd_soc_dapm_mic] = 4,
[snd_soc_dapm_value_mux] = 9,
[snd_soc_dapm_aif_in] = 10,
[snd_soc_dapm_aif_out] = 10,
+ [snd_soc_dapm_dai] = 10,
+ [snd_soc_dapm_regulator_supply] = 11,
[snd_soc_dapm_supply] = 11,
[snd_soc_dapm_post] = 12,
};
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)
return -1;
}
-static int soc_widget_update_bits(struct snd_soc_dapm_widget *w,
+static inline void soc_widget_lock(struct snd_soc_dapm_widget *w)
+{
+ if (w->codec && !w->codec->using_regmap)
+ mutex_lock(&w->codec->mutex);
+ else if (w->platform)
+ mutex_lock(&w->platform->mutex);
+}
+
+static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w)
+{
+ if (w->codec && !w->codec->using_regmap)
+ mutex_unlock(&w->codec->mutex);
+ else if (w->platform)
+ mutex_unlock(&w->platform->mutex);
+}
+
+static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w,
unsigned short reg, unsigned int mask, unsigned int value)
{
- int change;
+ bool change;
unsigned int old, new;
int ret;
- ret = soc_widget_read(w, reg);
- if (ret < 0)
- return ret;
-
- old = ret;
- new = (old & ~mask) | (value & mask);
- change = old != new;
- if (change) {
- ret = soc_widget_write(w, reg, new);
- if (ret < 0)
+ if (w->codec && w->codec->using_regmap) {
+ ret = regmap_update_bits_check(w->codec->control_data,
+ reg, mask, value, &change);
+ if (ret != 0)
+ return ret;
+ } else {
+ soc_widget_lock(w);
+ ret = soc_widget_read(w, reg);
+ if (ret < 0) {
+ soc_widget_unlock(w);
return ret;
+ }
+
+ old = ret;
+ new = (old & ~mask) | (value & mask);
+ change = old != new;
+ if (change) {
+ ret = soc_widget_write(w, reg, new);
+ if (ret < 0) {
+ soc_widget_unlock(w);
+ return ret;
+ }
+ }
+ soc_widget_unlock(w);
}
return change;
case snd_soc_dapm_micbias:
case snd_soc_dapm_vmid:
case snd_soc_dapm_supply:
+ case snd_soc_dapm_regulator_supply:
case snd_soc_dapm_aif_in:
case snd_soc_dapm_aif_out:
+ case snd_soc_dapm_dai:
case snd_soc_dapm_hp:
case snd_soc_dapm_mic:
case snd_soc_dapm_spk:
* for widgets so cut the prefix off
* the front of the widget name.
*/
- snprintf(path->long_name, name_len, "%s %s",
- w->name + prefix_len,
+ snprintf((char *)path->long_name, name_len,
+ "%s %s", w->name + prefix_len,
w->kcontrol_news[i].name);
break;
case snd_soc_dapm_mixer_named_ctl:
- snprintf(path->long_name, name_len, "%s",
- w->kcontrol_news[i].name);
+ snprintf((char *)path->long_name, name_len,
+ "%s", w->kcontrol_news[i].name);
break;
}
- path->long_name[name_len - 1] = '\0';
+ ((char *)path->long_name)[name_len - 1] = '\0';
path->kcontrol = snd_soc_cnew(&w->kcontrol_news[i],
wlist, path->long_name,
struct snd_soc_dapm_widget_list *wlist;
int shared, wlistentries;
size_t wlistsize;
- char *name;
+ const char *name;
if (w->num_kcontrols != 1) {
dev_err(dapm->dev,
DAPM_UPDATE_STAT(widget, path_checks);
- if (widget->id == snd_soc_dapm_supply)
+ switch (widget->id) {
+ case snd_soc_dapm_supply:
+ case snd_soc_dapm_regulator_supply:
return 0;
+ default:
+ break;
+ }
switch (widget->id) {
case snd_soc_dapm_adc:
case snd_soc_dapm_aif_out:
+ case snd_soc_dapm_dai:
if (widget->active) {
widget->outputs = snd_soc_dapm_suspend_check(widget);
return widget->outputs;
DAPM_UPDATE_STAT(widget, path_checks);
- if (widget->id == snd_soc_dapm_supply)
+ switch (widget->id) {
+ case snd_soc_dapm_supply:
+ case snd_soc_dapm_regulator_supply:
return 0;
+ default:
+ break;
+ }
/* active stream ? */
switch (widget->id) {
case snd_soc_dapm_dac:
case snd_soc_dapm_aif_in:
+ case snd_soc_dapm_dai:
if (widget->active) {
widget->inputs = snd_soc_dapm_suspend_check(widget);
return widget->inputs;
else
val = w->off_val;
- soc_widget_update_bits(w, -(w->reg + 1),
+ soc_widget_update_bits_locked(w, -(w->reg + 1),
w->mask << w->shift, val << w->shift);
return 0;
}
EXPORT_SYMBOL_GPL(dapm_reg_event);
+/*
+ * Handler for regulator supply widget.
+ */
+int dapm_regulator_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ if (SND_SOC_DAPM_EVENT_ON(event))
+ return regulator_enable(w->regulator);
+ else
+ return regulator_disable_deferred(w->regulator, w->shift);
+}
+EXPORT_SYMBOL_GPL(dapm_regulator_event);
+
static int dapm_widget_power_check(struct snd_soc_dapm_widget *w)
{
if (w->power_checked)
return out != 0 && in != 0;
}
+static int dapm_dai_check_power(struct snd_soc_dapm_widget *w)
+{
+ DAPM_UPDATE_STAT(w, power_checks);
+
+ return w->active;
+}
+
/* Check to see if an ADC has power */
static int dapm_adc_check_power(struct snd_soc_dapm_widget *w)
{
"pop test : Applying 0x%x/0x%x to %x in %dms\n",
value, mask, reg, card->pop_time);
pop_wait(card->pop_time);
- soc_widget_update_bits(w, reg, mask, value);
+ soc_widget_update_bits_locked(w, reg, mask, value);
}
list_for_each_entry(w, pending, power_list) {
w->name, ret);
}
- ret = snd_soc_update_bits(w->codec, update->reg, update->mask,
+ ret = soc_widget_update_bits_locked(w, update->reg, update->mask,
update->val);
if (ret < 0)
pr_err("%s DAPM update failed: %d\n", w->name, ret);
dev_err(d->dev, "Failed to turn off bias: %d\n", ret);
if (d->dev)
- pm_runtime_put_sync(d->dev);
+ pm_runtime_put(d->dev);
}
/* If we just powered up then move to active bias */
}
switch (w->id) {
case snd_soc_dapm_supply:
+ case snd_soc_dapm_regulator_supply:
/* Supplies can't affect their outputs, only their inputs */
break;
default:
trace_snd_soc_dapm_start(card);
list_for_each_entry(d, &card->dapm_list, list) {
- if (d->n_widgets || d->codec == NULL) {
- if (d->idle_bias_off)
- d->target_bias_level = SND_SOC_BIAS_OFF;
- else
- d->target_bias_level = SND_SOC_BIAS_STANDBY;
- }
+ if (d->idle_bias_off)
+ d->target_bias_level = SND_SOC_BIAS_OFF;
+ else
+ d->target_bias_level = SND_SOC_BIAS_STANDBY;
}
- 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:
if (d->target_bias_level < SND_SOC_BIAS_STANDBY)
d->target_bias_level = SND_SOC_BIAS_STANDBY;
}
- /* If there are no DAPM widgets then try to figure out power from the
- * event type.
- */
- if (!dapm->n_widgets) {
- switch (event) {
- case SND_SOC_DAPM_STREAM_START:
- case SND_SOC_DAPM_STREAM_RESUME:
- dapm->target_bias_level = SND_SOC_BIAS_ON;
- break;
- case SND_SOC_DAPM_STREAM_STOP:
- if (dapm->codec && dapm->codec->active)
- dapm->target_bias_level = SND_SOC_BIAS_ON;
- else
- dapm->target_bias_level = SND_SOC_BIAS_STANDBY;
- break;
- case SND_SOC_DAPM_STREAM_SUSPEND:
- dapm->target_bias_level = SND_SOC_BIAS_STANDBY;
- break;
- case SND_SOC_DAPM_STREAM_NOP:
- dapm->target_bias_level = dapm->bias_level;
- break;
- default:
- break;
- }
- }
-
/* Force all contexts in the card to the same bias state if
* they're not ground referenced.
*/
&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);
out = is_connected_output_ep(w);
dapm_clear_walk(w->dapm);
- ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d",
- w->name, w->power ? "On" : "Off", in, out);
+ ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d",
+ w->name, w->power ? "On" : "Off",
+ w->force ? " (forced)" : "", in, out);
if (w->reg >= 0)
ret += snprintf(buf + ret, PAGE_SIZE - ret,
dapm->debugfs_dapm = debugfs_create_dir("dapm", parent);
if (!dapm->debugfs_dapm) {
- printk(KERN_WARNING
+ dev_warn(dapm->dev,
"Failed to create DAPM debugfs directory\n");
return;
}
#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)
+static int 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;
}
+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_card *card = widget->dapm->card;
+ int ret;
+
+ mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
+ ret = soc_dapm_mux_update_power(widget, kcontrol, mux, e);
+ mutex_unlock(&card->dapm_mutex);
+ return ret;
+}
+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,
+static int 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;
}
+int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
+ struct snd_kcontrol *kcontrol, int connect)
+{
+ struct snd_soc_card *card = widget->dapm->card;
+ int ret;
+
+ mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
+ ret = soc_dapm_mixer_update_power(widget, kcontrol, connect);
+ mutex_unlock(&card->dapm_mutex);
+ return ret;
+}
+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,
struct device_attribute *attr, char *buf)
case snd_soc_dapm_mixer:
case snd_soc_dapm_mixer_named_ctl:
case snd_soc_dapm_supply:
+ case snd_soc_dapm_regulator_supply:
if (w->name)
count += sprintf(buf + count, "%s: %s\n",
w->name, w->power ? "On":"Off");
return -EINVAL;
}
+ if (w->connected != status)
+ dapm_mark_dirty(w, "pin configuration");
+
w->connected = status;
if (status == 0)
w->force = 0;
- dapm_mark_dirty(w, "pin configuration");
return 0;
}
*/
int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm)
{
+ int ret;
+
/*
* Suppress early reports (eg, jacks syncing their state) to avoid
* silly DAPM runs during card startup.
if (!dapm->card || !dapm->card->instantiated)
return 0;
- return dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP);
+ mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
+ ret = dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP);
+ mutex_unlock(&dapm->card->dapm_mutex);
+ return ret;
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_sync);
case snd_soc_dapm_pre:
case snd_soc_dapm_post:
case snd_soc_dapm_supply:
+ case snd_soc_dapm_regulator_supply:
case snd_soc_dapm_aif_in:
case snd_soc_dapm_aif_out:
+ case snd_soc_dapm_dai:
list_add(&path->list, &dapm->card->paths);
list_add(&path->list_sink, &wsink->sources);
list_add(&path->list_source, &wsource->sinks);
{
int i, ret;
+ mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
for (i = 0; i < num; i++) {
ret = snd_soc_dapm_add_route(dapm, route);
if (ret < 0) {
}
route++;
}
+ mutex_unlock(&dapm->card->dapm_mutex);
return 0;
}
int i, err;
int ret = 0;
+ mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
for (i = 0; i < num; i++) {
err = snd_soc_dapm_weak_route(dapm, route);
if (err)
ret = err;
route++;
}
+ mutex_unlock(&dapm->card->dapm_mutex);
return ret;
}
struct snd_soc_dapm_widget *w;
unsigned int val;
+ mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
+
list_for_each_entry(w, &dapm->card->widgets, list)
{
if (w->new)
w->kcontrols = kzalloc(w->num_kcontrols *
sizeof(struct snd_kcontrol *),
GFP_KERNEL);
- if (!w->kcontrols)
+ if (!w->kcontrols) {
+ mutex_unlock(&dapm->card->dapm_mutex);
return -ENOMEM;
+ }
}
switch(w->id) {
}
dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP);
+ mutex_unlock(&dapm->card->dapm_mutex);
return 0;
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets);
struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
struct snd_soc_dapm_widget *widget = wlist->widgets[0];
struct snd_soc_codec *codec = widget->codec;
+ struct snd_soc_card *card = codec->card;
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
unsigned int reg = mc->reg;
/* old connection must be powered down */
connect = invert ? 1 : 0;
- mutex_lock(&codec->mutex);
+ mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
change = snd_soc_test_bits(widget->codec, reg, mask, val);
if (change) {
update.val = val;
widget->dapm->update = &update;
- dapm_mixer_update_power(widget, kcontrol, connect);
+ soc_dapm_mixer_update_power(widget, kcontrol, connect);
widget->dapm->update = NULL;
}
}
- mutex_unlock(&codec->mutex);
+ mutex_unlock(&card->dapm_mutex);
return 0;
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw);
struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
struct snd_soc_dapm_widget *widget = wlist->widgets[0];
struct snd_soc_codec *codec = widget->codec;
+ struct snd_soc_card *card = codec->card;
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned int val, mux, change;
unsigned int mask, bitmask;
mask |= (bitmask - 1) << e->shift_r;
}
- mutex_lock(&codec->mutex);
+ mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
change = snd_soc_test_bits(widget->codec, e->reg, mask, val);
if (change) {
update.val = val;
widget->dapm->update = &update;
- dapm_mux_update_power(widget, kcontrol, change, mux, e);
+ soc_dapm_mux_update_power(widget, kcontrol, mux, e);
widget->dapm->update = NULL;
}
}
- mutex_unlock(&codec->mutex);
+ mutex_unlock(&card->dapm_mutex);
return change;
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double);
struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
struct snd_soc_dapm_widget *widget = wlist->widgets[0];
struct snd_soc_codec *codec = widget->codec;
+ struct snd_soc_card *card = codec->card;
struct soc_enum *e =
(struct soc_enum *)kcontrol->private_value;
int change;
if (ucontrol->value.enumerated.item[0] >= e->max)
return -EINVAL;
- mutex_lock(&codec->mutex);
+ mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
change = widget->value != ucontrol->value.enumerated.item[0];
if (change) {
widget->value = ucontrol->value.enumerated.item[0];
- dapm_mux_update_power(widget, kcontrol, change,
- widget->value, e);
+ soc_dapm_mux_update_power(widget, kcontrol, widget->value, e);
}
}
- mutex_unlock(&codec->mutex);
+ mutex_unlock(&card->dapm_mutex);
return ret;
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt);
struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
struct snd_soc_dapm_widget *widget = wlist->widgets[0];
struct snd_soc_codec *codec = widget->codec;
+ struct snd_soc_card *card = codec->card;
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned int val, mux, change;
unsigned int mask;
mask |= e->mask << e->shift_r;
}
- mutex_lock(&codec->mutex);
+ mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
change = snd_soc_test_bits(widget->codec, e->reg, mask, val);
if (change) {
update.val = val;
widget->dapm->update = &update;
- dapm_mux_update_power(widget, kcontrol, change, mux, e);
+ soc_dapm_mux_update_power(widget, kcontrol, mux, e);
widget->dapm->update = NULL;
}
}
- mutex_unlock(&codec->mutex);
+ mutex_unlock(&card->dapm_mutex);
return change;
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double);
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_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
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->dapm_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_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
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);
-
- mutex_unlock(&codec->mutex);
+ mutex_unlock(&card->dapm_mutex);
+ snd_soc_dapm_sync(&card->dapm);
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:
+ w->regulator = devm_regulator_get(dapm->dev, w->name);
+ if (IS_ERR(w->regulator)) {
+ ret = PTR_ERR(w->regulator);
+ dev_err(dapm->dev, "Failed to request %s: %d\n",
+ w->name, ret);
+ return NULL;
+ }
+ break;
+ default:
+ break;
+ }
name_len = strlen(widget->name) + 1;
if (dapm->codec && dapm->codec->name_prefix)
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",
+ snprintf((char *)w->name, name_len, "%s %s",
dapm->codec->name_prefix, widget->name);
else
- snprintf(w->name, name_len, "%s", widget->name);
+ snprintf((char *)w->name, name_len, "%s", widget->name);
switch (w->id) {
case snd_soc_dapm_switch:
w->power_check = dapm_generic_check_power;
break;
case snd_soc_dapm_supply:
+ case snd_soc_dapm_regulator_supply:
w->power_check = dapm_supply_check_power;
break;
+ case snd_soc_dapm_dai:
+ w->power_check = dapm_dai_check_power;
+ break;
default:
w->power_check = dapm_always_on_check_power;
break;
/* 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;
+ mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
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++;
}
+ mutex_unlock(&dapm->card->dapm_mutex);
return 0;
}
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 snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm,
+ struct snd_soc_dai *dai)
{
+ struct snd_soc_dapm_widget template;
struct snd_soc_dapm_widget *w;
- list_for_each_entry(w, &dapm->card->widgets, list)
- {
- if (!w->sname || w->dapm != dapm)
+ WARN_ON(dapm->dev != dai->dev);
+
+ memset(&template, 0, sizeof(template));
+ template.reg = SND_SOC_NOPM;
+
+ if (dai->driver->playback.stream_name) {
+ template.id = snd_soc_dapm_dai;
+ template.name = dai->driver->playback.stream_name;
+ template.sname = dai->driver->playback.stream_name;
+
+ dev_dbg(dai->dev, "adding %s widget\n",
+ template.name);
+
+ w = snd_soc_dapm_new_control(dapm, &template);
+ if (!w) {
+ dev_err(dapm->dev, "Failed to create %s widget\n",
+ dai->driver->playback.stream_name);
+ }
+
+ w->priv = dai;
+ dai->playback_widget = w;
+ }
+
+ if (dai->driver->capture.stream_name) {
+ template.id = snd_soc_dapm_dai;
+ template.name = dai->driver->capture.stream_name;
+ template.sname = dai->driver->capture.stream_name;
+
+ dev_dbg(dai->dev, "adding %s widget\n",
+ template.name);
+
+ w = snd_soc_dapm_new_control(dapm, &template);
+ if (!w) {
+ dev_err(dapm->dev, "Failed to create %s widget\n",
+ dai->driver->capture.stream_name);
+ }
+
+ w->priv = dai;
+ dai->capture_widget = w;
+ }
+
+ return 0;
+}
+
+int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card)
+{
+ struct snd_soc_dapm_widget *dai_w, *w;
+ struct snd_soc_dai *dai;
+ struct snd_soc_dapm_route r;
+
+ memset(&r, 0, sizeof(r));
+
+ /* For each DAI widget... */
+ list_for_each_entry(dai_w, &card->widgets, list) {
+ if (dai_w->id != snd_soc_dapm_dai)
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)) {
- dapm_mark_dirty(w, "stream event");
- switch(event) {
- case SND_SOC_DAPM_STREAM_START:
- w->active = 1;
- break;
- case SND_SOC_DAPM_STREAM_STOP:
- w->active = 0;
- break;
- case SND_SOC_DAPM_STREAM_SUSPEND:
- case SND_SOC_DAPM_STREAM_RESUME:
- case SND_SOC_DAPM_STREAM_PAUSE_PUSH:
- case SND_SOC_DAPM_STREAM_PAUSE_RELEASE:
- break;
+
+ dai = dai_w->priv;
+
+ /* ...find all widgets with the same stream and link them */
+ list_for_each_entry(w, &card->widgets, list) {
+ if (w->dapm != dai_w->dapm)
+ continue;
+
+ if (w->id == snd_soc_dapm_dai)
+ continue;
+
+ if (!w->sname)
+ continue;
+
+ if (dai->driver->playback.stream_name &&
+ strstr(w->sname,
+ dai->driver->playback.stream_name)) {
+ r.source = dai->playback_widget->name;
+ r.sink = w->name;
+ dev_dbg(dai->dev, "%s -> %s\n",
+ r.source, r.sink);
+
+ snd_soc_dapm_add_route(w->dapm, &r);
+ }
+
+ if (dai->driver->capture.stream_name &&
+ strstr(w->sname,
+ dai->driver->capture.stream_name)) {
+ r.source = w->name;
+ r.sink = dai->capture_widget->name;
+ dev_dbg(dai->dev, "%s -> %s\n",
+ r.source, r.sink);
+
+ snd_soc_dapm_add_route(w->dapm, &r);
}
}
}
- dapm_power_widgets(dapm, event);
+ return 0;
+}
+
+static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
+ int event)
+{
+
+ struct snd_soc_dapm_widget *w_cpu, *w_codec;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
- /* do we need to notify any clients that DAPM stream is complete */
- if (dapm->stream_event)
- dapm->stream_event(dapm, event);
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ w_cpu = cpu_dai->playback_widget;
+ w_codec = codec_dai->playback_widget;
+ } else {
+ w_cpu = cpu_dai->capture_widget;
+ w_codec = codec_dai->capture_widget;
+ }
+
+ if (w_cpu) {
+
+ dapm_mark_dirty(w_cpu, "stream event");
+
+ switch (event) {
+ case SND_SOC_DAPM_STREAM_START:
+ w_cpu->active = 1;
+ break;
+ case SND_SOC_DAPM_STREAM_STOP:
+ w_cpu->active = 0;
+ break;
+ case SND_SOC_DAPM_STREAM_SUSPEND:
+ case SND_SOC_DAPM_STREAM_RESUME:
+ case SND_SOC_DAPM_STREAM_PAUSE_PUSH:
+ case SND_SOC_DAPM_STREAM_PAUSE_RELEASE:
+ break;
+ }
+ }
+
+ if (w_codec) {
+
+ dapm_mark_dirty(w_codec, "stream event");
+
+ switch (event) {
+ case SND_SOC_DAPM_STREAM_START:
+ w_codec->active = 1;
+ break;
+ case SND_SOC_DAPM_STREAM_STOP:
+ w_codec->active = 0;
+ break;
+ case SND_SOC_DAPM_STREAM_SUSPEND:
+ case SND_SOC_DAPM_STREAM_RESUME:
+ case SND_SOC_DAPM_STREAM_PAUSE_PUSH:
+ case SND_SOC_DAPM_STREAM_PAUSE_RELEASE:
+ break;
+ }
+ }
+
+ dapm_power_widgets(&rtd->card->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)
+void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
+ int event)
{
- struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_card *card = rtd->card;
- if (stream == NULL)
- return 0;
-
- mutex_lock(&codec->mutex);
- soc_dapm_stream_event(&codec->dapm, stream, event);
- mutex_unlock(&codec->mutex);
- return 0;
+ mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
+ soc_dapm_stream_event(rtd, stream, event);
+ mutex_unlock(&card->dapm_mutex);
}
/**
projects / deliverable / linux.git / blobdiff