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Diffstat (limited to 'sound/soc/soc-dapm.c')
-rw-r--r--sound/soc/soc-dapm.c194
1 files changed, 164 insertions, 30 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 89eae93445cf..dd7c49fafd75 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -35,6 +35,7 @@
#include <linux/debugfs.h>
#include <linux/pm_runtime.h>
#include <linux/regulator/consumer.h>
+#include <linux/clk.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -51,6 +52,7 @@ static int dapm_up_seq[] = {
[snd_soc_dapm_pre] = 0,
[snd_soc_dapm_supply] = 1,
[snd_soc_dapm_regulator_supply] = 1,
+ [snd_soc_dapm_clock_supply] = 1,
[snd_soc_dapm_micbias] = 2,
[snd_soc_dapm_dai_link] = 2,
[snd_soc_dapm_dai] = 3,
@@ -92,6 +94,7 @@ static int dapm_down_seq[] = {
[snd_soc_dapm_aif_out] = 10,
[snd_soc_dapm_dai] = 10,
[snd_soc_dapm_dai_link] = 11,
+ [snd_soc_dapm_clock_supply] = 12,
[snd_soc_dapm_regulator_supply] = 12,
[snd_soc_dapm_supply] = 12,
[snd_soc_dapm_post] = 13,
@@ -288,9 +291,9 @@ static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm,
if (dapm->codec->driver->set_bias_level)
ret = dapm->codec->driver->set_bias_level(dapm->codec,
level);
- else
- dapm->bias_level = level;
- }
+ } else
+ dapm->bias_level = level;
+
if (ret != 0)
goto out;
@@ -321,11 +324,10 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w,
val = soc_widget_read(w, reg);
val = (val >> shift) & mask;
+ if (invert)
+ val = max - val;
- if ((invert && !val) || (!invert && val))
- p->connect = 1;
- else
- p->connect = 0;
+ p->connect = !!val;
}
break;
case snd_soc_dapm_mux: {
@@ -391,6 +393,7 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w,
case snd_soc_dapm_vmid:
case snd_soc_dapm_supply:
case snd_soc_dapm_regulator_supply:
+ case snd_soc_dapm_clock_supply:
case snd_soc_dapm_aif_in:
case snd_soc_dapm_aif_out:
case snd_soc_dapm_dai:
@@ -764,6 +767,7 @@ static int is_connected_output_ep(struct snd_soc_dapm_widget *widget,
switch (widget->id) {
case snd_soc_dapm_supply:
case snd_soc_dapm_regulator_supply:
+ case snd_soc_dapm_clock_supply:
return 0;
default:
break;
@@ -850,6 +854,7 @@ static int is_connected_input_ep(struct snd_soc_dapm_widget *widget,
switch (widget->id) {
case snd_soc_dapm_supply:
case snd_soc_dapm_regulator_supply:
+ case snd_soc_dapm_clock_supply:
return 0;
default:
break;
@@ -996,6 +1001,27 @@ int dapm_regulator_event(struct snd_soc_dapm_widget *w,
}
EXPORT_SYMBOL_GPL(dapm_regulator_event);
+/*
+ * Handler for clock supply widget.
+ */
+int dapm_clock_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ if (!w->clk)
+ return -EIO;
+
+#ifdef CONFIG_HAVE_CLK
+ if (SND_SOC_DAPM_EVENT_ON(event)) {
+ return clk_enable(w->clk);
+ } else {
+ clk_disable(w->clk);
+ return 0;
+ }
+#endif
+ return 0;
+}
+EXPORT_SYMBOL_GPL(dapm_clock_event);
+
static int dapm_widget_power_check(struct snd_soc_dapm_widget *w)
{
if (w->power_checked)
@@ -1487,6 +1513,7 @@ static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power,
switch (w->id) {
case snd_soc_dapm_supply:
case snd_soc_dapm_regulator_supply:
+ case snd_soc_dapm_clock_supply:
/* Supplies can't affect their outputs, only their inputs */
break;
default:
@@ -1545,7 +1572,7 @@ static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event)
struct snd_soc_dapm_context *d;
LIST_HEAD(up_list);
LIST_HEAD(down_list);
- LIST_HEAD(async_domain);
+ ASYNC_DOMAIN_EXCLUSIVE(async_domain);
enum snd_soc_bias_level bias;
trace_snd_soc_dapm_start(card);
@@ -1570,7 +1597,15 @@ static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event)
}
list_for_each_entry(w, &card->widgets, list) {
- list_del_init(&w->dirty);
+ switch (w->id) {
+ case snd_soc_dapm_pre:
+ case snd_soc_dapm_post:
+ /* These widgets always need to be powered */
+ break;
+ default:
+ list_del_init(&w->dirty);
+ break;
+ }
if (w->power) {
d = w->dapm;
@@ -1587,6 +1622,7 @@ static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event)
break;
case snd_soc_dapm_supply:
case snd_soc_dapm_regulator_supply:
+ case snd_soc_dapm_clock_supply:
case snd_soc_dapm_micbias:
if (d->target_bias_level < SND_SOC_BIAS_STANDBY)
d->target_bias_level = SND_SOC_BIAS_STANDBY;
@@ -1941,6 +1977,7 @@ static ssize_t dapm_widget_show(struct device *dev,
case snd_soc_dapm_mixer_named_ctl:
case snd_soc_dapm_supply:
case snd_soc_dapm_regulator_supply:
+ case snd_soc_dapm_clock_supply:
if (w->name)
count += sprintf(buf + count, "%s: %s\n",
w->name, w->power ? "On":"Off");
@@ -2187,6 +2224,7 @@ static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm,
case snd_soc_dapm_post:
case snd_soc_dapm_supply:
case snd_soc_dapm_regulator_supply:
+ case snd_soc_dapm_clock_supply:
case snd_soc_dapm_aif_in:
case snd_soc_dapm_aif_out:
case snd_soc_dapm_dai:
@@ -2221,6 +2259,10 @@ static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm,
path->connect = 0;
return 0;
}
+
+ dapm_mark_dirty(wsource, "Route added");
+ dapm_mark_dirty(wsink, "Route added");
+
return 0;
err:
@@ -2230,6 +2272,59 @@ err:
return ret;
}
+static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm,
+ const struct snd_soc_dapm_route *route)
+{
+ struct snd_soc_dapm_path *path, *p;
+ const char *sink;
+ const char *source;
+ char prefixed_sink[80];
+ char prefixed_source[80];
+
+ if (route->control) {
+ dev_err(dapm->dev,
+ "Removal of routes with controls not supported\n");
+ return -EINVAL;
+ }
+
+ if (dapm->codec && dapm->codec->name_prefix) {
+ snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s",
+ dapm->codec->name_prefix, route->sink);
+ sink = prefixed_sink;
+ snprintf(prefixed_source, sizeof(prefixed_source), "%s %s",
+ dapm->codec->name_prefix, route->source);
+ source = prefixed_source;
+ } else {
+ sink = route->sink;
+ source = route->source;
+ }
+
+ path = NULL;
+ list_for_each_entry(p, &dapm->card->paths, list) {
+ if (strcmp(p->source->name, source) != 0)
+ continue;
+ if (strcmp(p->sink->name, sink) != 0)
+ continue;
+ path = p;
+ break;
+ }
+
+ if (path) {
+ dapm_mark_dirty(path->source, "Route removed");
+ dapm_mark_dirty(path->sink, "Route removed");
+
+ list_del(&path->list);
+ list_del(&path->list_sink);
+ list_del(&path->list_source);
+ kfree(path);
+ } else {
+ dev_warn(dapm->dev, "Route %s->%s does not exist\n",
+ source, sink);
+ }
+
+ return 0;
+}
+
/**
* snd_soc_dapm_add_routes - Add routes between DAPM widgets
* @dapm: DAPM context
@@ -2246,15 +2341,15 @@ err:
int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
const struct snd_soc_dapm_route *route, int num)
{
- int i, ret = 0;
+ int i, r, ret = 0;
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) {
+ r = snd_soc_dapm_add_route(dapm, route);
+ if (r < 0) {
dev_err(dapm->dev, "Failed to add route %s->%s\n",
route->source, route->sink);
- break;
+ ret = r;
}
route++;
}
@@ -2264,6 +2359,30 @@ int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm,
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes);
+/**
+ * snd_soc_dapm_del_routes - Remove routes between DAPM widgets
+ * @dapm: DAPM context
+ * @route: audio routes
+ * @num: number of routes
+ *
+ * Removes routes from the DAPM context.
+ */
+int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm,
+ const struct snd_soc_dapm_route *route, int num)
+{
+ int i, ret = 0;
+
+ mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
+ for (i = 0; i < num; i++) {
+ snd_soc_dapm_del_route(dapm, route);
+ route++;
+ }
+ mutex_unlock(&dapm->card->dapm_mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes);
+
static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm,
const struct snd_soc_dapm_route *route)
{
@@ -2434,23 +2553,20 @@ int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol,
(struct soc_mixer_control *)kcontrol->private_value;
unsigned int reg = mc->reg;
unsigned int shift = mc->shift;
- unsigned int rshift = mc->rshift;
int max = mc->max;
- unsigned int invert = mc->invert;
unsigned int mask = (1 << fls(max)) - 1;
+ unsigned int invert = mc->invert;
+
+ if (snd_soc_volsw_is_stereo(mc))
+ dev_warn(widget->dapm->dev,
+ "Control '%s' is stereo, which is not supported\n",
+ kcontrol->id.name);
ucontrol->value.integer.value[0] =
(snd_soc_read(widget->codec, reg) >> shift) & mask;
- if (shift != rshift)
- ucontrol->value.integer.value[1] =
- (snd_soc_read(widget->codec, reg) >> rshift) & mask;
- if (invert) {
+ if (invert)
ucontrol->value.integer.value[0] =
max - ucontrol->value.integer.value[0];
- if (shift != rshift)
- ucontrol->value.integer.value[1] =
- max - ucontrol->value.integer.value[1];
- }
return 0;
}
@@ -2484,20 +2600,19 @@ int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
struct snd_soc_dapm_update update;
int wi;
+ if (snd_soc_volsw_is_stereo(mc))
+ dev_warn(widget->dapm->dev,
+ "Control '%s' is stereo, which is not supported\n",
+ kcontrol->id.name);
+
val = (ucontrol->value.integer.value[0] & mask);
+ connect = !!val;
if (invert)
val = max - val;
mask = mask << shift;
val = val << shift;
- if (val)
- /* new connection */
- connect = invert ? 0 : 1;
- else
- /* old connection must be powered down */
- connect = invert ? 1 : 0;
-
mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
change = snd_soc_test_bits(widget->codec, reg, mask, val);
@@ -2873,6 +2988,19 @@ snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
return NULL;
}
break;
+ case snd_soc_dapm_clock_supply:
+#ifdef CONFIG_CLKDEV_LOOKUP
+ w->clk = devm_clk_get(dapm->dev, w->name);
+ if (IS_ERR(w->clk)) {
+ ret = PTR_ERR(w->clk);
+ dev_err(dapm->dev, "Failed to request %s: %d\n",
+ w->name, ret);
+ return NULL;
+ }
+#else
+ return NULL;
+#endif
+ break;
default:
break;
}
@@ -2924,6 +3052,7 @@ snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
break;
case snd_soc_dapm_supply:
case snd_soc_dapm_regulator_supply:
+ case snd_soc_dapm_clock_supply:
w->power_check = dapm_supply_check_power;
break;
case snd_soc_dapm_dai:
@@ -3538,10 +3667,13 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_free);
static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm)
{
+ struct snd_soc_card *card = dapm->card;
struct snd_soc_dapm_widget *w;
LIST_HEAD(down_list);
int powerdown = 0;
+ mutex_lock(&card->dapm_mutex);
+
list_for_each_entry(w, &dapm->card->widgets, list) {
if (w->dapm != dapm)
continue;
@@ -3564,6 +3696,8 @@ static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm)
snd_soc_dapm_set_bias_level(dapm,
SND_SOC_BIAS_STANDBY);
}
+
+ mutex_unlock(&card->dapm_mutex);
}
/*
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-01 17:56:46 +0000