sound/soc/soc-dapm.c

42 #define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++;
59 			 const struct snd_soc_dapm_widget *widget);
63 			 const struct snd_soc_dapm_widget *widget);
238  * @w: The widget for which to invalidate the cached number of input paths
240  * Resets the cached number of inputs for the specified widget and all widgets
241  * that can be reached via outcoming paths from the widget.
243  * This function must be called if the number of output paths for a widget might
244  * have changed. E.g. if the source state of a widget changes or a path is added
245  * or activated with the widget as the sink.
255  * @w: The widget for which to invalidate the cached number of output paths
257  * Resets the cached number of outputs for the specified widget and all widgets
258  * that can be reached via incoming paths from the widget.
260  * This function must be called if the number of output paths for a widget might
261  * have changed. E.g. if the sink state of a widget changes or a path is added
262  * or activated with the widget as the source.
321 /* create a new dapm widget */
354 	struct snd_soc_dapm_widget *widget;
359 static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget,
374 	switch (widget->id) {
384 				dev_warn(widget->dapm->dev,
409 			data->widget =
410 				snd_soc_dapm_new_control_unlocked(widget->dapm,
413 			if (IS_ERR(data->widget)) {
414 				ret = PTR_ERR(data->widget);
444 			data->widget = snd_soc_dapm_new_control_unlocked(
445 						widget->dapm, &template);
447 			if (IS_ERR(data->widget)) {
448 				ret = PTR_ERR(data->widget);
452 			snd_soc_dapm_add_path(widget->dapm, data->widget,
453 					      widget, NULL, NULL);
455 			data->value = soc_dapm_read(widget->dapm, e->reg) &
490 	struct snd_soc_dapm_widget *widget)
508 	new_wlist->widgets[n - 1] = widget;
527 	if (!data->widget)
530 	return data->widget->power;
561 	if (data->widget) {
566 			data->widget->on_val = value & data->widget->mask;
570 			data->widget->on_val = value >> data->widget->shift;
573 			data->widget->on_val = value;
584  * snd_soc_dapm_kcontrol_widget() - Returns the widget associated to a
747 /* connect mux widget to its interconnecting audio paths */
830 /* connect mixer widget to its interconnecting audio paths */
874  * create it. Either way, add the widget into the control's widget list
934 			 * front of the widget name.
969 				"ASoC: failed to add widget %s dapm kcontrol %s: %d\n",
1009 			if (data->widget)
1010 				snd_soc_dapm_add_path(data->widget->dapm,
1011 						      data->widget,
1100 				"ASoC: failed to add widget %s dapm kcontrol %s: %d\n",
1115 static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget)
1117 	int level = snd_power_get_state(widget->dapm->card->snd_card);
1122 		if (widget->ignore_suspend)
1123 			dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n",
1124 				widget->name);
1125 		return widget->ignore_suspend;
1161  * widget and all widgets that can be reached via incoming or outcoming paths
1162  * from the widget.
1164 static void invalidate_paths_ep(struct snd_soc_dapm_widget *widget,
1170 	widget->endpoints[dir] = -1;
1172 	snd_soc_dapm_widget_for_each_path(widget, rdir, path) {
1194 static __always_inline int is_connected_ep(struct snd_soc_dapm_widget *widget,
1206 	if (widget->endpoints[dir] >= 0)
1207 		return widget->endpoints[dir];
1209 	DAPM_UPDATE_STAT(widget, path_checks);
1211 	/* do we need to add this widget to the list ? */
1213 		list_add_tail(&widget->work_list, list);
1215 	if (custom_stop_condition && custom_stop_condition(widget, dir)) {
1220 	if ((widget->is_ep & SND_SOC_DAPM_DIR_TO_EP(dir)) && widget->connected) {
1221 		widget->endpoints[dir] = snd_soc_dapm_suspend_check(widget);
1222 		return widget->endpoints[dir];
1225 	snd_soc_dapm_widget_for_each_path(widget, rdir, path) {
1226 		DAPM_UPDATE_STAT(widget, neighbour_checks);
1234 		trace_snd_soc_dapm_path(widget, dir, path);
1243 	widget->endpoints[dir] = con;
1250  * output widget. Returns number of complete paths.
1253  * This function takes the dapm widget currently being examined and the walk
1255  * in the graph onwards should not be added to the widget list.
1257 static int is_connected_output_ep(struct snd_soc_dapm_widget *widget,
1262 	return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_OUT,
1268  * input widget. Returns number of complete paths.
1271  * This function takes the dapm widget currently being examined and the walk
1275 static int is_connected_input_ep(struct snd_soc_dapm_widget *widget,
1280 	return is_connected_ep(widget, list, SND_SOC_DAPM_DIR_IN,
1289  * @custom_stop_condition: (optional) a function meant to stop the widget graph
1297  * This function takes the dapm widget currently being examined and the walk
1347  * Handler for regulator supply widget.
1381  * Handler for pinctrl widget.
1406  * Handler for clock supply widget.
1442 /* Generic check to see if a widget should be powered. */
1517 /* Insert a widget in order into a DAPM power sequence. */
1621 		/* Any widget will do, they should all be updating the
1728 				"ASoC: Failed to apply widget power: %d\n", ret);
1946  * Scan each dapm widget for complete audio path.
2283 /* test and update the power status of a mux widget */
2293 	/* find dapm widget path assoc with kcontrol */
2329 /* test and update the power status of a mixer or switch widget */
2339 	/* find dapm widget path assoc with kcontrol */
2458 /* show dapm widget status in sys fs */
2496  * snd_soc_dapm_free_widget - Free specified widget
2497  * @w: widget to free
2499  * Removes widget from all paths and frees memory occupied by it.
2512 	 * remove source and sink paths associated to this widget.
2738 int snd_soc_dapm_widget_name_cmp(struct snd_soc_dapm_widget *widget, const char *s)
2740 	struct snd_soc_component *component = snd_soc_dapm_to_component(widget->dapm);
2741 	const char *wname = widget->name;
2751  * dapm_update_widget_flags() - Re-compute widget sink and source flags
2752  * @w: The widget for which to update the flags
2757  * This function must be called whenever a path is added or removed to a widget.
2866 			"Connecting non-supply widget to supply widget is not supported (%s -> %s)\n",
2988 	 * find src and dest widgets over all widgets but favor a widget from
3002 					"ASoC: sink widget %s overwritten\n",
3016 					"ASoC: source widget %s overwritten\n",
3020 	/* use widget from another DAPM context if not found from this */
3118  * the widget receiving the audio signal, whilst the source is the sender
3309 		dapm_mark_dirty(w, "new widget");
3635 			 const struct snd_soc_dapm_widget *widget)
3641 	w = dapm_cnew_widget(widget, soc_dapm_prefix(dapm));
3647 		w->regulator = devm_regulator_get(dapm->dev, widget->name);
3672 		w->clk = devm_clk_get(dapm->dev, widget->name);
3778  * @widget: widget template
3782  * Returns a widget pointer on success or an error pointer on failure
3786 			 const struct snd_soc_dapm_widget *widget)
3791 	w = snd_soc_dapm_new_control_unlocked(dapm, widget);
3801  * @widget: widget array
3809 	const struct snd_soc_dapm_widget *widget,
3817 		struct snd_soc_dapm_widget *w = snd_soc_dapm_new_control_unlocked(dapm, widget);
3822 		widget++;
4049 	/* Can't change the config when widget is already powered */
4129 		dev_err(card->dev, "ASoC: Failed to create control for %s widget\n",
4139 		dev_err(card->dev, "ASoC: Failed to create control for %s widget\n",
4200 	dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name);
4219 	dev_err(rtd->dev, "ASoC: Failed to create %s-%s widget: %d\n",
4247 		dev_dbg(dai->dev, "ASoC: adding %s widget\n",
4263 		dev_dbg(dai->dev, "ASoC: adding %s widget\n",
4284 	/* For each DAI widget... */
4296 			dev_dbg(card->dev, "dai widget %s has no DAI\n",
4486  * necessary widget power changes.
4534  * do any widget power switching.
4552  * do any widget power switching.
4580  * do any widget power switching.
4619  * do any widget power switching.
4646  * do any widget power switching.
4663  * do any widget power switching.
4694  * do any widget power switching.
4715  * do any widget power switching.