aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--include/sound/soc-dapm.h5
-rw-r--r--sound/soc/soc-dapm.c112
2 files changed, 102 insertions, 15 deletions
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index 70216d20e897..96c5e0ec81d1 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -107,6 +107,10 @@ struct device;
{ .id = snd_soc_dapm_mux, .name = wname, \
SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
.kcontrol_news = wcontrols, .num_kcontrols = 1}
+#define SND_SOC_DAPM_DEMUX(wname, wreg, wshift, winvert, wcontrols) \
+{ .id = snd_soc_dapm_demux, .name = wname, \
+ SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
+ .kcontrol_news = wcontrols, .num_kcontrols = 1}
/* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
#define SOC_PGA_ARRAY(wname, wreg, wshift, winvert,\
@@ -452,6 +456,7 @@ enum snd_soc_dapm_type {
snd_soc_dapm_input = 0, /* input pin */
snd_soc_dapm_output, /* output pin */
snd_soc_dapm_mux, /* selects 1 analog signal from many inputs */
+ snd_soc_dapm_demux, /* connects the input to one of multiple outputs */
snd_soc_dapm_mixer, /* mixes several analog signals together */
snd_soc_dapm_mixer_named_ctl, /* mixer with named controls */
snd_soc_dapm_pga, /* programmable gain/attenuation (volume) */
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 5c159f4f8097..a2e5f2278caa 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -70,6 +70,7 @@ static int dapm_up_seq[] = {
[snd_soc_dapm_aif_out] = 4,
[snd_soc_dapm_mic] = 5,
[snd_soc_dapm_mux] = 6,
+ [snd_soc_dapm_demux] = 6,
[snd_soc_dapm_dac] = 7,
[snd_soc_dapm_switch] = 8,
[snd_soc_dapm_mixer] = 8,
@@ -100,6 +101,7 @@ static int dapm_down_seq[] = {
[snd_soc_dapm_mic] = 7,
[snd_soc_dapm_micbias] = 8,
[snd_soc_dapm_mux] = 9,
+ [snd_soc_dapm_demux] = 9,
[snd_soc_dapm_aif_in] = 10,
[snd_soc_dapm_aif_out] = 10,
[snd_soc_dapm_dai_in] = 10,
@@ -356,6 +358,7 @@ static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget,
}
}
break;
+ case snd_soc_dapm_demux:
case snd_soc_dapm_mux:
e = (struct soc_enum *)kcontrol->private_value;
@@ -639,9 +642,10 @@ out:
/* connect mux widget to its interconnecting audio paths */
static int dapm_connect_mux(struct snd_soc_dapm_context *dapm,
- struct snd_soc_dapm_path *path, const char *control_name)
+ struct snd_soc_dapm_path *path, const char *control_name,
+ struct snd_soc_dapm_widget *w)
{
- const struct snd_kcontrol_new *kcontrol = &path->sink->kcontrol_news[0];
+ const struct snd_kcontrol_new *kcontrol = &w->kcontrol_news[0];
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned int val, item;
int i;
@@ -781,6 +785,7 @@ static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w,
wname_in_long_name = false;
kcname_in_long_name = true;
break;
+ case snd_soc_dapm_demux:
case snd_soc_dapm_mux:
wname_in_long_name = true;
kcname_in_long_name = false;
@@ -886,17 +891,32 @@ static int dapm_new_mux(struct snd_soc_dapm_widget *w)
{
struct snd_soc_dapm_context *dapm = w->dapm;
struct snd_soc_dapm_path *path;
+ struct list_head *paths;
+ const char *type;
int ret;
+ switch (w->id) {
+ case snd_soc_dapm_mux:
+ paths = &w->sources;
+ type = "mux";
+ break;
+ case snd_soc_dapm_demux:
+ paths = &w->sinks;
+ type = "demux";
+ break;
+ default:
+ return -EINVAL;
+ }
+
if (w->num_kcontrols != 1) {
dev_err(dapm->dev,
- "ASoC: mux %s has incorrect number of controls\n",
+ "ASoC: %s %s has incorrect number of controls\n", type,
w->name);
return -EINVAL;
}
- if (list_empty(&w->sources)) {
- dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name);
+ if (list_empty(paths)) {
+ dev_err(dapm->dev, "ASoC: %s %s has no paths\n", type, w->name);
return -EINVAL;
}
@@ -904,9 +924,16 @@ static int dapm_new_mux(struct snd_soc_dapm_widget *w)
if (ret < 0)
return ret;
- list_for_each_entry(path, &w->sources, list_sink) {
- if (path->name)
- dapm_kcontrol_add_path(w->kcontrols[0], path);
+ if (w->id == snd_soc_dapm_mux) {
+ list_for_each_entry(path, &w->sources, list_sink) {
+ if (path->name)
+ dapm_kcontrol_add_path(w->kcontrols[0], path);
+ }
+ } else {
+ list_for_each_entry(path, &w->sinks, list_source) {
+ if (path->name)
+ dapm_kcontrol_add_path(w->kcontrols[0], path);
+ }
}
return 0;
@@ -2414,6 +2441,50 @@ static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w)
}
}
+static int snd_soc_dapm_check_dynamic_path(struct snd_soc_dapm_context *dapm,
+ struct snd_soc_dapm_widget *source, struct snd_soc_dapm_widget *sink,
+ const char *control)
+{
+ bool dynamic_source = false;
+ bool dynamic_sink = false;
+
+ if (!control)
+ return 0;
+
+ switch (source->id) {
+ case snd_soc_dapm_demux:
+ dynamic_source = true;
+ break;
+ default:
+ break;
+ }
+
+ switch (sink->id) {
+ case snd_soc_dapm_mux:
+ case snd_soc_dapm_switch:
+ case snd_soc_dapm_mixer:
+ case snd_soc_dapm_mixer_named_ctl:
+ dynamic_sink = true;
+ break;
+ default:
+ break;
+ }
+
+ if (dynamic_source && dynamic_sink) {
+ dev_err(dapm->dev,
+ "Direct connection between demux and mixer/mux not supported for path %s -> [%s] -> %s\n",
+ source->name, control, sink->name);
+ return -EINVAL;
+ } else if (!dynamic_source && !dynamic_sink) {
+ dev_err(dapm->dev,
+ "Control not supported for path %s -> [%s] -> %s\n",
+ source->name, control, sink->name);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm,
struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink,
const char *control,
@@ -2444,6 +2515,10 @@ static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm,
return -EINVAL;
}
+ ret = snd_soc_dapm_check_dynamic_path(dapm, wsource, wsink, control);
+ if (ret)
+ return ret;
+
path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL);
if (!path)
return -ENOMEM;
@@ -2463,10 +2538,19 @@ static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm,
if (control == NULL) {
path->connect = 1;
} else {
- /* connect dynamic paths */
+ switch (wsource->id) {
+ case snd_soc_dapm_demux:
+ ret = dapm_connect_mux(dapm, path, control, wsource);
+ if (ret)
+ goto err;
+ break;
+ default:
+ break;
+ }
+
switch (wsink->id) {
case snd_soc_dapm_mux:
- ret = dapm_connect_mux(dapm, path, control);
+ ret = dapm_connect_mux(dapm, path, control, wsink);
if (ret != 0)
goto err;
break;
@@ -2478,11 +2562,7 @@ static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm,
goto err;
break;
default:
- dev_err(dapm->dev,
- "Control not supported for path %s -> [%s] -> %s\n",
- wsource->name, control, wsink->name);
- ret = -EINVAL;
- goto err;
+ break;
}
}
@@ -2815,6 +2895,7 @@ int snd_soc_dapm_new_widgets(struct snd_soc_card *card)
dapm_new_mixer(w);
break;
case snd_soc_dapm_mux:
+ case snd_soc_dapm_demux:
dapm_new_mux(w);
break;
case snd_soc_dapm_pga:
@@ -3219,6 +3300,7 @@ snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
w->power_check = dapm_always_on_check_power;
break;
case snd_soc_dapm_mux:
+ case snd_soc_dapm_demux:
case snd_soc_dapm_switch:
case snd_soc_dapm_mixer:
case snd_soc_dapm_mixer_named_ctl:
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-15 01:14:55 +0000