}
}
-void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm)
+/*
+ * dapm_widget_invalidate_input_paths() - Invalidate the cached number of input
+ * paths
+ * @w: The widget for which to invalidate the cached number of input paths
+ *
+ * The function resets the cached number of inputs for the specified widget and
+ * all widgets that can be reached via outgoing paths from the widget.
+ *
+ * This function must be called if the number of input paths for a widget might
+ * have changed. E.g. if the source state of a widget changes or a path is added
+ * or activated with the widget as the sink.
+ */
+static void dapm_widget_invalidate_input_paths(struct snd_soc_dapm_widget *w)
+{
+ struct snd_soc_dapm_widget *sink;
+ struct snd_soc_dapm_path *p;
+ LIST_HEAD(list);
+
+ dapm_assert_locked(w->dapm);
+
+ if (w->inputs == -1)
+ return;
+
+ w->inputs = -1;
+ list_add_tail(&w->work_list, &list);
+
+ list_for_each_entry(w, &list, work_list) {
+ list_for_each_entry(p, &w->sinks, list_source) {
+ if (p->is_supply || p->weak || !p->connect)
+ continue;
+ sink = p->sink;
+ if (sink->inputs != -1) {
+ sink->inputs = -1;
+ list_add_tail(&sink->work_list, &list);
+ }
+ }
+ }
+}
+
+/*
+ * dapm_widget_invalidate_output_paths() - Invalidate the cached number of
+ * output paths
+ * @w: The widget for which to invalidate the cached number of output paths
+ *
+ * Resets the cached number of outputs for the specified widget and all widgets
+ * that can be reached via incoming paths from the widget.
+ *
+ * This function must be called if the number of output paths for a widget might
+ * have changed. E.g. if the sink state of a widget changes or a path is added
+ * or activated with the widget as the source.
+ */
+static void dapm_widget_invalidate_output_paths(struct snd_soc_dapm_widget *w)
+{
+ struct snd_soc_dapm_widget *source;
+ struct snd_soc_dapm_path *p;
+ LIST_HEAD(list);
+
+ dapm_assert_locked(w->dapm);
+
+ if (w->outputs == -1)
+ return;
+
+ w->outputs = -1;
+ list_add_tail(&w->work_list, &list);
+
+ list_for_each_entry(w, &list, work_list) {
+ list_for_each_entry(p, &w->sources, list_sink) {
+ if (p->is_supply || p->weak || !p->connect)
+ continue;
+ source = p->source;
+ if (source->outputs != -1) {
+ source->outputs = -1;
+ list_add_tail(&source->work_list, &list);
+ }
+ }
+ }
+}
+
+/*
+ * dapm_path_invalidate() - Invalidates the cached number of inputs and outputs
+ * for the widgets connected to a path
+ * @p: The path to invalidate
+ *
+ * Resets the cached number of inputs for the sink of the path and the cached
+ * number of outputs for the source of the path.
+ *
+ * This function must be called when a path is added, removed or the connected
+ * state changes.
+ */
+static void dapm_path_invalidate(struct snd_soc_dapm_path *p)
+{
+ /*
+ * Weak paths or supply paths do not influence the number of input or
+ * output paths of their neighbors.
+ */
+ if (p->weak || p->is_supply)
+ return;
+
+ /*
+ * The number of connected endpoints is the sum of the number of
+ * connected endpoints of all neighbors. If a node with 0 connected
+ * endpoints is either connected or disconnected that sum won't change,
+ * so there is no need to re-check the path.
+ */
+ if (p->source->inputs != 0)
+ dapm_widget_invalidate_input_paths(p->sink);
+ if (p->sink->outputs != 0)
+ dapm_widget_invalidate_output_paths(p->source);
+}
+
+void dapm_mark_endpoints_dirty(struct snd_soc_card *card)
{
- struct snd_soc_card *card = dapm->card;
struct snd_soc_dapm_widget *w;
mutex_lock(&card->dapm_mutex);
list_for_each_entry(w, &card->widgets, list) {
- switch (w->id) {
- case snd_soc_dapm_input:
- case snd_soc_dapm_output:
- dapm_mark_dirty(w, "Rechecking inputs and outputs");
- break;
- default:
- break;
+ if (w->is_sink || w->is_source) {
+ dapm_mark_dirty(w, "Rechecking endpoints");
+ if (w->is_sink)
+ dapm_widget_invalidate_output_paths(w);
+ if (w->is_source)
+ dapm_widget_invalidate_input_paths(w);
}
}
mutex_unlock(&card->dapm_mutex);
}
-EXPORT_SYMBOL_GPL(dapm_mark_io_dirty);
+EXPORT_SYMBOL_GPL(dapm_mark_endpoints_dirty);
/* create a new dapm widget */
static inline struct snd_soc_dapm_widget *dapm_cnew_widget(
list_for_each_entry(w, &card->widgets, list) {
w->new_power = w->power;
w->power_checked = false;
- w->inputs = -1;
- w->outputs = -1;
}
}
/* connect mux widget to its interconnecting audio paths */
static int dapm_connect_mux(struct snd_soc_dapm_context *dapm,
- struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest,
- struct snd_soc_dapm_path *path, const char *control_name,
- const struct snd_kcontrol_new *kcontrol)
+ struct snd_soc_dapm_path *path, const char *control_name)
{
+ const struct snd_kcontrol_new *kcontrol = &path->sink->kcontrol_news[0];
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned int val, item;
int i;
for (i = 0; i < e->items; i++) {
if (!(strcmp(control_name, e->texts[i]))) {
- list_add(&path->list, &dapm->card->paths);
- list_add(&path->list_sink, &dest->sources);
- list_add(&path->list_source, &src->sinks);
path->name = e->texts[i];
if (i == item)
path->connect = 1;
}
/* set up initial codec paths */
-static void dapm_set_mixer_path_status(struct snd_soc_dapm_widget *w,
- struct snd_soc_dapm_path *p, int i)
+static void dapm_set_mixer_path_status(struct snd_soc_dapm_path *p, int i)
{
struct soc_mixer_control *mc = (struct soc_mixer_control *)
- w->kcontrol_news[i].private_value;
+ p->sink->kcontrol_news[i].private_value;
unsigned int reg = mc->reg;
unsigned int shift = mc->shift;
unsigned int max = mc->max;
unsigned int val;
if (reg != SND_SOC_NOPM) {
- soc_dapm_read(w->dapm, reg, &val);
+ soc_dapm_read(p->sink->dapm, reg, &val);
val = (val >> shift) & mask;
if (invert)
val = max - val;
/* connect mixer widget to its interconnecting audio paths */
static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm,
- struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest,
struct snd_soc_dapm_path *path, const char *control_name)
{
int i;
/* search for mixer kcontrol */
- for (i = 0; i < dest->num_kcontrols; i++) {
- if (!strcmp(control_name, dest->kcontrol_news[i].name)) {
- list_add(&path->list, &dapm->card->paths);
- list_add(&path->list_sink, &dest->sources);
- list_add(&path->list_source, &src->sinks);
- path->name = dest->kcontrol_news[i].name;
- dapm_set_mixer_path_status(dest, path, i);
+ for (i = 0; i < path->sink->num_kcontrols; i++) {
+ if (!strcmp(control_name, path->sink->kcontrol_news[i].name)) {
+ path->name = path->sink->kcontrol_news[i].name;
+ dapm_set_mixer_path_status(path, i);
return 0;
}
}
if (ret < 0)
return ret;
- list_for_each_entry(path, &w->sources, list_sink)
- dapm_kcontrol_add_path(w->kcontrols[0], path);
+ list_for_each_entry(path, &w->sources, list_sink) {
+ if (path->name)
+ dapm_kcontrol_add_path(w->kcontrols[0], path);
+ }
return 0;
}
return 0;
}
-/* reset 'walked' bit for each dapm path */
-static void dapm_clear_walk_output(struct snd_soc_dapm_context *dapm,
- struct list_head *sink)
-{
- struct snd_soc_dapm_path *p;
-
- list_for_each_entry(p, sink, list_source) {
- if (p->walked) {
- p->walked = 0;
- dapm_clear_walk_output(dapm, &p->sink->sinks);
- }
- }
-}
-
-static void dapm_clear_walk_input(struct snd_soc_dapm_context *dapm,
- struct list_head *source)
-{
- struct snd_soc_dapm_path *p;
-
- list_for_each_entry(p, source, list_sink) {
- if (p->walked) {
- p->walked = 0;
- dapm_clear_walk_input(dapm, &p->source->sources);
- }
- }
-}
-
-
/* We implement power down on suspend by checking the power state of
* the ALSA card - when we are suspending the ALSA state for the card
* is set to D3.
DAPM_UPDATE_STAT(widget, path_checks);
- switch (widget->id) {
- case snd_soc_dapm_supply:
- case snd_soc_dapm_regulator_supply:
- case snd_soc_dapm_clock_supply:
- case snd_soc_dapm_kcontrol:
- return 0;
- default:
- break;
- }
-
- switch (widget->id) {
- case snd_soc_dapm_adc:
- case snd_soc_dapm_aif_out:
- case snd_soc_dapm_dai_out:
- if (widget->active) {
- widget->outputs = snd_soc_dapm_suspend_check(widget);
- return widget->outputs;
- }
- default:
- break;
- }
-
- if (widget->connected) {
- /* connected pin ? */
- if (widget->id == snd_soc_dapm_output && !widget->ext) {
- widget->outputs = snd_soc_dapm_suspend_check(widget);
- return widget->outputs;
- }
-
- /* connected jack or spk ? */
- if (widget->id == snd_soc_dapm_hp ||
- widget->id == snd_soc_dapm_spk ||
- (widget->id == snd_soc_dapm_line &&
- !list_empty(&widget->sources))) {
- widget->outputs = snd_soc_dapm_suspend_check(widget);
- return widget->outputs;
- }
+ if (widget->is_sink && widget->connected) {
+ widget->outputs = snd_soc_dapm_suspend_check(widget);
+ return widget->outputs;
}
list_for_each_entry(path, &widget->sinks, list_source) {
DAPM_UPDATE_STAT(widget, neighbour_checks);
- if (path->weak)
+ if (path->weak || path->is_supply)
continue;
if (path->walking)
return 1;
- if (path->walked)
- continue;
-
trace_snd_soc_dapm_output_path(widget, path);
- if (path->sink && path->connect) {
- path->walked = 1;
+ if (path->connect) {
path->walking = 1;
/* do we need to add this widget to the list ? */
DAPM_UPDATE_STAT(widget, path_checks);
- switch (widget->id) {
- case snd_soc_dapm_supply:
- case snd_soc_dapm_regulator_supply:
- case snd_soc_dapm_clock_supply:
- case snd_soc_dapm_kcontrol:
- 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_in:
- if (widget->active) {
- widget->inputs = snd_soc_dapm_suspend_check(widget);
- return widget->inputs;
- }
- default:
- break;
- }
-
- if (widget->connected) {
- /* connected pin ? */
- if (widget->id == snd_soc_dapm_input && !widget->ext) {
- widget->inputs = snd_soc_dapm_suspend_check(widget);
- return widget->inputs;
- }
-
- /* connected VMID/Bias for lower pops */
- if (widget->id == snd_soc_dapm_vmid) {
- widget->inputs = snd_soc_dapm_suspend_check(widget);
- return widget->inputs;
- }
-
- /* connected jack ? */
- if (widget->id == snd_soc_dapm_mic ||
- (widget->id == snd_soc_dapm_line &&
- !list_empty(&widget->sinks))) {
- widget->inputs = snd_soc_dapm_suspend_check(widget);
- return widget->inputs;
- }
-
- /* signal generator */
- if (widget->id == snd_soc_dapm_siggen) {
- widget->inputs = snd_soc_dapm_suspend_check(widget);
- return widget->inputs;
- }
+ if (widget->is_source && widget->connected) {
+ widget->inputs = snd_soc_dapm_suspend_check(widget);
+ return widget->inputs;
}
list_for_each_entry(path, &widget->sources, list_sink) {
DAPM_UPDATE_STAT(widget, neighbour_checks);
- if (path->weak)
+ if (path->weak || path->is_supply)
continue;
if (path->walking)
return 1;
- if (path->walked)
- continue;
-
trace_snd_soc_dapm_input_path(widget, path);
- if (path->source && path->connect) {
- path->walked = 1;
+ if (path->connect) {
path->walking = 1;
/* do we need to add this widget to the list ? */
int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream,
struct snd_soc_dapm_widget_list **list)
{
- struct snd_soc_card *card = dai->card;
+ struct snd_soc_card *card = dai->component->card;
+ struct snd_soc_dapm_widget *w;
int paths;
mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
- dapm_reset(card);
- if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ /*
+ * For is_connected_{output,input}_ep fully discover the graph we need
+ * to reset the cached number of inputs and outputs.
+ */
+ list_for_each_entry(w, &card->widgets, list) {
+ w->inputs = -1;
+ w->outputs = -1;
+ }
+
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK)
paths = is_connected_output_ep(dai->playback_widget, list);
- dapm_clear_walk_output(&card->dapm,
- &dai->playback_widget->sinks);
- } else {
+ else
paths = is_connected_input_ep(dai->capture_widget, list);
- dapm_clear_walk_input(&card->dapm,
- &dai->capture_widget->sources);
- }
trace_snd_soc_dapm_connected(paths, stream);
mutex_unlock(&card->dapm_mutex);
DAPM_UPDATE_STAT(w, power_checks);
in = is_connected_input_ep(w, NULL);
- dapm_clear_walk_input(w->dapm, &w->sources);
out = is_connected_output_ep(w, NULL);
- dapm_clear_walk_output(w->dapm, &w->sinks);
return out != 0 && in != 0;
}
-/* Check to see if an ADC has power */
-static int dapm_adc_check_power(struct snd_soc_dapm_widget *w)
-{
- int in;
-
- DAPM_UPDATE_STAT(w, power_checks);
-
- if (w->active) {
- in = is_connected_input_ep(w, NULL);
- dapm_clear_walk_input(w->dapm, &w->sources);
- return in != 0;
- } else {
- return dapm_generic_check_power(w);
- }
-}
-
-/* Check to see if a DAC has power */
-static int dapm_dac_check_power(struct snd_soc_dapm_widget *w)
-{
- int out;
-
- DAPM_UPDATE_STAT(w, power_checks);
-
- if (w->active) {
- out = is_connected_output_ep(w, NULL);
- dapm_clear_walk_output(w->dapm, &w->sinks);
- return out != 0;
- } else {
- return dapm_generic_check_power(w);
- }
-}
-
/* Check to see if a power supply is needed */
static int dapm_supply_check_power(struct snd_soc_dapm_widget *w)
{
!path->connected(path->source, path->sink))
continue;
- if (!path->sink)
- continue;
-
if (dapm_widget_power_check(path->sink))
return 1;
}
/* If we changed our power state perhaps our neigbours changed
* also.
*/
- list_for_each_entry(path, &w->sources, list_sink) {
- if (path->source) {
- dapm_widget_set_peer_power(path->source, power,
+ list_for_each_entry(path, &w->sources, list_sink)
+ dapm_widget_set_peer_power(path->source, power, path->connect);
+
+ /* Supplies can't affect their outputs, only their inputs */
+ if (!w->is_supply) {
+ list_for_each_entry(path, &w->sinks, list_source)
+ dapm_widget_set_peer_power(path->sink, power,
path->connect);
- }
- }
- switch (w->id) {
- case snd_soc_dapm_supply:
- case snd_soc_dapm_regulator_supply:
- case snd_soc_dapm_clock_supply:
- case snd_soc_dapm_kcontrol:
- /* Supplies can't affect their outputs, only their inputs */
- break;
- default:
- list_for_each_entry(path, &w->sinks, list_source) {
- if (path->sink) {
- dapm_widget_set_peer_power(path->sink, power,
- path->connect);
- }
- }
- break;
}
if (power)
if (!buf)
return -ENOMEM;
- in = is_connected_input_ep(w, NULL);
- dapm_clear_walk_input(w->dapm, &w->sources);
- out = is_connected_output_ep(w, NULL);
- dapm_clear_walk_output(w->dapm, &w->sinks);
+ /* Supply widgets are not handled by is_connected_{input,output}_ep() */
+ if (w->is_supply) {
+ in = 0;
+ out = 0;
+ } else {
+ in = is_connected_input_ep(w, NULL);
+ out = is_connected_output_ep(w, NULL);
+ }
ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d",
w->name, w->power ? "On" : "Off",
#endif
+/*
+ * soc_dapm_connect_path() - Connects or disconnects a path
+ * @path: The path to update
+ * @connect: The new connect state of the path. True if the path is connected,
+ * false if it is disconneted.
+ * @reason: The reason why the path changed (for debugging only)
+ */
+static void soc_dapm_connect_path(struct snd_soc_dapm_path *path,
+ bool connect, const char *reason)
+{
+ if (path->connect == connect)
+ return;
+
+ path->connect = connect;
+ dapm_mark_dirty(path->source, reason);
+ dapm_mark_dirty(path->sink, reason);
+ dapm_path_invalidate(path);
+}
+
/* test and update the power status of a mux widget */
static int soc_dapm_mux_update_power(struct snd_soc_card *card,
struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e)
{
struct snd_soc_dapm_path *path;
int found = 0;
+ bool connect;
lockdep_assert_held(&card->dapm_mutex);
/* find dapm widget path assoc with kcontrol */
dapm_kcontrol_for_each_path(path, kcontrol) {
- if (!path->name || !e->texts[mux])
- continue;
-
found = 1;
/* we now need to match the string in the enum to the path */
- if (!(strcmp(path->name, e->texts[mux]))) {
- path->connect = 1; /* new connection */
- dapm_mark_dirty(path->source, "mux connection");
- } else {
- if (path->connect)
- dapm_mark_dirty(path->source,
- "mux disconnection");
- path->connect = 0; /* old connection must be powered down */
- }
- dapm_mark_dirty(path->sink, "mux change");
+ if (!(strcmp(path->name, e->texts[mux])))
+ connect = true;
+ else
+ connect = false;
+
+ soc_dapm_connect_path(path, connect, "mux update");
}
if (found)
/* find dapm widget path assoc with kcontrol */
dapm_kcontrol_for_each_path(path, kcontrol) {
found = 1;
- path->connect = connect;
- dapm_mark_dirty(path->source, "mixer connection");
- dapm_mark_dirty(path->sink, "mixer update");
+ soc_dapm_connect_path(path, connect, "mixer update");
}
if (found)
return -EINVAL;
}
- if (w->connected != status)
+ if (w->connected != status) {
dapm_mark_dirty(w, "pin configuration");
+ dapm_widget_invalidate_input_paths(w);
+ dapm_widget_invalidate_output_paths(w);
+ }
w->connected = status;
if (status == 0)
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_sync);
+/*
+ * dapm_update_widget_flags() - Re-compute widget sink and source flags
+ * @w: The widget for which to update the flags
+ *
+ * Some widgets have a dynamic category which depends on which neighbors they
+ * are connected to. This function update the category for these widgets.
+ *
+ * This function must be called whenever a path is added or removed to a widget.
+ */
+static void dapm_update_widget_flags(struct snd_soc_dapm_widget *w)
+{
+ struct snd_soc_dapm_path *p;
+
+ switch (w->id) {
+ case snd_soc_dapm_input:
+ w->is_source = 1;
+ list_for_each_entry(p, &w->sources, list_sink) {
+ if (p->source->id == snd_soc_dapm_micbias ||
+ p->source->id == snd_soc_dapm_mic ||
+ p->source->id == snd_soc_dapm_line ||
+ p->source->id == snd_soc_dapm_output) {
+ w->is_source = 0;
+ break;
+ }
+ }
+ break;
+ case snd_soc_dapm_output:
+ w->is_sink = 1;
+ list_for_each_entry(p, &w->sinks, list_source) {
+ if (p->sink->id == snd_soc_dapm_spk ||
+ p->sink->id == snd_soc_dapm_hp ||
+ p->sink->id == snd_soc_dapm_line ||
+ p->sink->id == snd_soc_dapm_input) {
+ w->is_sink = 0;
+ break;
+ }
+ }
+ break;
+ case snd_soc_dapm_line:
+ w->is_sink = !list_empty(&w->sources);
+ w->is_source = !list_empty(&w->sinks);
+ break;
+ default:
+ break;
+ }
+}
+
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,
struct snd_soc_dapm_path *path;
int ret;
+ if (wsink->is_supply && !wsource->is_supply) {
+ dev_err(dapm->dev,
+ "Connecting non-supply widget to supply widget is not supported (%s -> %s)\n",
+ wsource->name, wsink->name);
+ return -EINVAL;
+ }
+
+ if (connected && !wsource->is_supply) {
+ dev_err(dapm->dev,
+ "connected() callback only supported for supply widgets (%s -> %s)\n",
+ wsource->name, wsink->name);
+ return -EINVAL;
+ }
+
+ if (wsource->is_supply && control) {
+ dev_err(dapm->dev,
+ "Conditional paths are not supported for supply widgets (%s -> [%s] -> %s)\n",
+ wsource->name, control, wsink->name);
+ return -EINVAL;
+ }
+
path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL);
if (!path)
return -ENOMEM;
INIT_LIST_HEAD(&path->list_source);
INIT_LIST_HEAD(&path->list_sink);
- /* check for external widgets */
- if (wsink->id == snd_soc_dapm_input) {
- if (wsource->id == snd_soc_dapm_micbias ||
- wsource->id == snd_soc_dapm_mic ||
- wsource->id == snd_soc_dapm_line ||
- wsource->id == snd_soc_dapm_output)
- wsink->ext = 1;
- }
- if (wsource->id == snd_soc_dapm_output) {
- if (wsink->id == snd_soc_dapm_spk ||
- wsink->id == snd_soc_dapm_hp ||
- wsink->id == snd_soc_dapm_line ||
- wsink->id == snd_soc_dapm_input)
- wsource->ext = 1;
- }
-
- dapm_mark_dirty(wsource, "Route added");
- dapm_mark_dirty(wsink, "Route added");
+ if (wsource->is_supply || wsink->is_supply)
+ path->is_supply = 1;
/* connect static paths */
if (control == NULL) {
- list_add(&path->list, &dapm->card->paths);
- list_add(&path->list_sink, &wsink->sources);
- list_add(&path->list_source, &wsource->sinks);
path->connect = 1;
- return 0;
- }
-
- /* connect dynamic paths */
- switch (wsink->id) {
- case snd_soc_dapm_adc:
- case snd_soc_dapm_dac:
- case snd_soc_dapm_pga:
- case snd_soc_dapm_out_drv:
- case snd_soc_dapm_input:
- case snd_soc_dapm_output:
- case snd_soc_dapm_siggen:
- case snd_soc_dapm_micbias:
- case snd_soc_dapm_vmid:
- 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_clock_supply:
- case snd_soc_dapm_aif_in:
- case snd_soc_dapm_aif_out:
- case snd_soc_dapm_dai_in:
- case snd_soc_dapm_dai_out:
- case snd_soc_dapm_dai_link:
- case snd_soc_dapm_kcontrol:
- list_add(&path->list, &dapm->card->paths);
- list_add(&path->list_sink, &wsink->sources);
- list_add(&path->list_source, &wsource->sinks);
- path->connect = 1;
- return 0;
- case snd_soc_dapm_mux:
- ret = dapm_connect_mux(dapm, wsource, wsink, path, control,
- &wsink->kcontrol_news[0]);
- if (ret != 0)
- goto err;
- break;
- case snd_soc_dapm_switch:
- case snd_soc_dapm_mixer:
- case snd_soc_dapm_mixer_named_ctl:
- ret = dapm_connect_mixer(dapm, wsource, wsink, path, control);
- if (ret != 0)
+ } else {
+ /* connect dynamic paths */
+ switch (wsink->id) {
+ case snd_soc_dapm_mux:
+ ret = dapm_connect_mux(dapm, path, control);
+ if (ret != 0)
+ goto err;
+ break;
+ case snd_soc_dapm_switch:
+ case snd_soc_dapm_mixer:
+ case snd_soc_dapm_mixer_named_ctl:
+ ret = dapm_connect_mixer(dapm, path, control);
+ if (ret != 0)
+ 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;
- case snd_soc_dapm_hp:
- case snd_soc_dapm_mic:
- case snd_soc_dapm_line:
- case snd_soc_dapm_spk:
- list_add(&path->list, &dapm->card->paths);
- list_add(&path->list_sink, &wsink->sources);
- list_add(&path->list_source, &wsource->sinks);
- path->connect = 0;
- return 0;
+ }
}
+ list_add(&path->list, &dapm->card->paths);
+ list_add(&path->list_sink, &wsink->sources);
+ list_add(&path->list_source, &wsource->sinks);
+
+ dapm_update_widget_flags(wsource);
+ dapm_update_widget_flags(wsink);
+
+ dapm_mark_dirty(wsource, "Route added");
+ dapm_mark_dirty(wsink, "Route added");
+
+ if (dapm->card->instantiated && path->connect)
+ dapm_path_invalidate(path);
+
return 0;
err:
kfree(path);
static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm,
const struct snd_soc_dapm_route *route)
{
+ struct snd_soc_dapm_widget *wsource, *wsink;
struct snd_soc_dapm_path *path, *p;
const char *sink;
const char *source;
}
if (path) {
- dapm_mark_dirty(path->source, "Route removed");
- dapm_mark_dirty(path->sink, "Route removed");
+ wsource = path->source;
+ wsink = path->sink;
+
+ dapm_mark_dirty(wsource, "Route removed");
+ dapm_mark_dirty(wsink, "Route removed");
+ if (path->connect)
+ dapm_path_invalidate(path);
dapm_free_path(path);
+
+ /* Update any path related flags */
+ dapm_update_widget_flags(wsource);
+ dapm_update_widget_flags(wsink);
} else {
dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n",
source, sink);
}
switch (w->id) {
- case snd_soc_dapm_switch:
- case snd_soc_dapm_mixer:
- case snd_soc_dapm_mixer_named_ctl:
+ case snd_soc_dapm_mic:
+ case snd_soc_dapm_input:
+ w->is_source = 1;
w->power_check = dapm_generic_check_power;
break;
- case snd_soc_dapm_mux:
+ case snd_soc_dapm_spk:
+ case snd_soc_dapm_hp:
+ case snd_soc_dapm_output:
+ w->is_sink = 1;
w->power_check = dapm_generic_check_power;
break;
- case snd_soc_dapm_dai_out:
- w->power_check = dapm_adc_check_power;
- break;
- case snd_soc_dapm_dai_in:
- w->power_check = dapm_dac_check_power;
+ case snd_soc_dapm_vmid:
+ case snd_soc_dapm_siggen:
+ w->is_source = 1;
+ w->power_check = dapm_always_on_check_power;
break;
+ case snd_soc_dapm_mux:
+ case snd_soc_dapm_switch:
+ case snd_soc_dapm_mixer:
+ case snd_soc_dapm_mixer_named_ctl:
case snd_soc_dapm_adc:
case snd_soc_dapm_aif_out:
case snd_soc_dapm_dac:
case snd_soc_dapm_aif_in:
case snd_soc_dapm_pga:
case snd_soc_dapm_out_drv:
- case snd_soc_dapm_input:
- case snd_soc_dapm_output:
case snd_soc_dapm_micbias:
- case snd_soc_dapm_spk:
- case snd_soc_dapm_hp:
- case snd_soc_dapm_mic:
case snd_soc_dapm_line:
case snd_soc_dapm_dai_link:
+ case snd_soc_dapm_dai_out:
+ case snd_soc_dapm_dai_in:
w->power_check = dapm_generic_check_power;
break;
case snd_soc_dapm_supply:
case snd_soc_dapm_regulator_supply:
case snd_soc_dapm_clock_supply:
case snd_soc_dapm_kcontrol:
+ w->is_supply = 1;
w->power_check = dapm_supply_check_power;
break;
default:
INIT_LIST_HEAD(&w->dirty);
list_add(&w->list, &dapm->card->widgets);
+ w->inputs = -1;
+ w->outputs = -1;
+
/* machine layer set ups unconnected pins and insertions */
w->connected = 1;
return w;
case SND_SOC_DAPM_STREAM_PAUSE_RELEASE:
break;
}
+
+ if (w->id == snd_soc_dapm_dai_in) {
+ w->is_source = w->active;
+ dapm_widget_invalidate_input_paths(w);
+ } else {
+ w->is_sink = w->active;
+ dapm_widget_invalidate_output_paths(w);
+ }
}
}
}
dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin);
- w->connected = 1;
+ if (!w->connected) {
+ /*
+ * w->force does not affect the number of input or output paths,
+ * so we only have to recheck if w->connected is changed
+ */
+ dapm_widget_invalidate_input_paths(w);
+ dapm_widget_invalidate_output_paths(w);
+ w->connected = 1;
+ }
w->force = 1;
dapm_mark_dirty(w, "force enable");
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend);
+/**
+ * dapm_is_external_path() - Checks if a path is a external path
+ * @card: The card the path belongs to
+ * @path: The path to check
+ *
+ * Returns true if the path is either between two different DAPM contexts or
+ * between two external pins of the same DAPM context. Otherwise returns
+ * false.
+ */
+static bool dapm_is_external_path(struct snd_soc_card *card,
+ struct snd_soc_dapm_path *path)
+{
+ dev_dbg(card->dev,
+ "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n",
+ path->source->name, path->source->id, path->source->dapm,
+ path->sink->name, path->sink->id, path->sink->dapm);
+
+ /* Connection between two different DAPM contexts */
+ if (path->source->dapm != path->sink->dapm)
+ return true;
+
+ /* Loopback connection from external pin to external pin */
+ if (path->sink->id == snd_soc_dapm_input) {
+ switch (path->source->id) {
+ case snd_soc_dapm_output:
+ case snd_soc_dapm_micbias:
+ return true;
+ default:
+ break;
+ }
+ }
+
+ return false;
+}
+
static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card,
struct snd_soc_dapm_widget *w)
{
struct snd_soc_dapm_path *p;
- list_for_each_entry(p, &card->paths, list) {
- if ((p->source == w) || (p->sink == w)) {
- dev_dbg(card->dev,
- "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n",
- p->source->name, p->source->id, p->source->dapm,
- p->sink->name, p->sink->id, p->sink->dapm);
+ list_for_each_entry(p, &w->sources, list_sink) {
+ if (dapm_is_external_path(card, p))
+ return true;
+ }
- /* Connected to something other than the codec */
- if (p->source->dapm != p->sink->dapm)
- return true;
- /*
- * Loopback connection from codec external pin to
- * codec external pin
- */
- if (p->sink->id == snd_soc_dapm_input) {
- switch (p->source->id) {
- case snd_soc_dapm_output:
- case snd_soc_dapm_micbias:
- return true;
- default:
- break;
- }
- }
- }
+ list_for_each_entry(p, &w->sinks, list_source) {
+ if (dapm_is_external_path(card, p))
+ return true;
}
return false;
projects / firefly-linux-kernel-4.4.55.git / blobdiff