Commit eeec12bf authored by Graeme Gregory's avatar Graeme Gregory Committed by Jaroslav Kysela

[ALSA] soc - DAPM - add hook to read state of DAPM widget

This adds a hook to read the power state of a DAPM widget, I use this
in the gta02 driver to expose certain DAPM widgets in the mixer for
ease of audio routing.
Signed-off-by: default avatarGraeme Gregory <graeme@openmoko.org>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarJaroslav Kysela <perex@perex.cz>
parent 54e7e616
...@@ -223,6 +223,8 @@ int snd_soc_dapm_sys_add(struct device *dev); ...@@ -223,6 +223,8 @@ int snd_soc_dapm_sys_add(struct device *dev);
/* dapm audio endpoint control */ /* dapm audio endpoint control */
int snd_soc_dapm_set_endpoint(struct snd_soc_codec *codec, int snd_soc_dapm_set_endpoint(struct snd_soc_codec *codec,
char *pin, int status); char *pin, int status);
int snd_soc_dapm_get_endpoint_status(struct snd_soc_codec *codec,
char *pin);
int snd_soc_dapm_sync_endpoints(struct snd_soc_codec *codec); int snd_soc_dapm_sync_endpoints(struct snd_soc_codec *codec);
/* dapm widget types */ /* dapm widget types */
......
...@@ -1342,6 +1342,29 @@ int snd_soc_dapm_set_endpoint(struct snd_soc_codec *codec, ...@@ -1342,6 +1342,29 @@ int snd_soc_dapm_set_endpoint(struct snd_soc_codec *codec,
} }
EXPORT_SYMBOL_GPL(snd_soc_dapm_set_endpoint); EXPORT_SYMBOL_GPL(snd_soc_dapm_set_endpoint);
/**
* snd_soc_dapm_get_endpoint_status - get audio endpoint status
* @codec: audio codec
* @endpoint: audio signal endpoint (or start point)
*
* Get audio endpoint status - connected or disconnected.
*
* Returns status
*/
int snd_soc_dapm_get_endpoint_status(struct snd_soc_codec *codec,
char *endpoint)
{
struct snd_soc_dapm_widget *w;
list_for_each_entry(w, &codec->dapm_widgets, list) {
if (!strcmp(w->name, endpoint))
return w->connected;
}
return 0;
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_get_endpoint);
/** /**
* snd_soc_dapm_free - free dapm resources * snd_soc_dapm_free - free dapm resources
* @socdev: SoC device * @socdev: SoC device
......
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