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authorLiam Girdwood <lg@opensource.wolfsonmicro.com>2008-07-07 13:35:17 +0100
committerJaroslav Kysela <perex@perex.cz>2008-07-10 09:32:30 +0200
commita5302181e5321664047f75715242aac4e0bbd17c (patch)
treeeb5b8a618062099981b65eeaca4cdb9b1fe7c826 /sound/soc/soc-dapm.c
parentbe321a890c25272965129ffe4b3b59a519fcf583 (diff)
downloadop-kernel-dev-a5302181e5321664047f75715242aac4e0bbd17c.zip
op-kernel-dev-a5302181e5321664047f75715242aac4e0bbd17c.tar.gz
ALSA: asoc: core - refactored DAPM pin control API.
Refactored snd_soc_dapm_set_endpoint() to snd_soc_dapm_enable_pin() and snd_soc_dapm_disable_pin(). Renamed snd_soc_dapm_sync_endpoints() to snd_soc_dapm_sync(). Renamed snd_soc_dapm_get_endpoint_status() to snd_soc_dapm_get_pin_status(). Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/soc/soc-dapm.c')
-rw-r--r--sound/soc/soc-dapm.c81
1 files changed, 51 insertions, 30 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 91cbbef..94296b5 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -880,8 +880,25 @@ static void dapm_free_widgets(struct snd_soc_codec *codec)
}
}
+static int snd_soc_dapm_set_pin(struct snd_soc_codec *codec,
+ char *pin, int status)
+{
+ struct snd_soc_dapm_widget *w;
+
+ list_for_each_entry(w, &codec->dapm_widgets, list) {
+ if (!strcmp(w->name, pin)) {
+ dbg("dapm: %s: pin %s\n", codec->name, pin);
+ w->connected = status;
+ return 0;
+ }
+ }
+
+ dbg("dapm: %s: configuring unknown pin %s\n", codec->name, pin);
+ return -EINVAL;
+}
+
/**
- * snd_soc_dapm_sync_endpoints - scan and power dapm paths
+ * snd_soc_dapm_sync - scan and power dapm paths
* @codec: audio codec
*
* Walks all dapm audio paths and powers widgets according to their
@@ -889,11 +906,11 @@ static void dapm_free_widgets(struct snd_soc_codec *codec)
*
* Returns 0 for success.
*/
-int snd_soc_dapm_sync_endpoints(struct snd_soc_codec *codec)
+int snd_soc_dapm_sync(struct snd_soc_codec *codec)
{
return dapm_power_widgets(codec, SND_SOC_DAPM_STREAM_NOP);
}
-EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_endpoints);
+EXPORT_SYMBOL_GPL(snd_soc_dapm_sync);
static int snd_soc_dapm_add_route(struct snd_soc_codec *codec,
const char *sink, const char *control, const char *source)
@@ -1441,53 +1458,57 @@ int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev,
}
/**
- * snd_soc_dapm_set_endpoint - set audio endpoint status
- * @codec: audio codec
- * @endpoint: audio signal endpoint (or start point)
- * @status: point status
- *
- * Set audio endpoint status - connected or disconnected.
+ * snd_soc_dapm_enable_pin - enable pin.
+ * @snd_soc_codec: SoC codec
+ * @pin: pin name
*
- * Returns 0 for success else error.
+ * Enables input/output pin and it's parents or children widgets iff there is
+ * a valid audio route and active audio stream.
+ * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
+ * do any widget power switching.
*/
-int snd_soc_dapm_set_endpoint(struct snd_soc_codec *codec,
- char *endpoint, int status)
+int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, char *pin)
{
- struct snd_soc_dapm_widget *w;
-
- list_for_each_entry(w, &codec->dapm_widgets, list) {
- if (!strcmp(w->name, endpoint)) {
- w->connected = status;
- return 0;
- }
- }
+ return snd_soc_dapm_set_pin(codec, pin, 1);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin);
- return -ENODEV;
+/**
+ * snd_soc_dapm_disable_pin - disable pin.
+ * @codec: SoC codec
+ * @pin: pin name
+ *
+ * Disables input/output pin and it's parents or children widgets.
+ * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
+ * do any widget power switching.
+ */
+int snd_soc_dapm_disable_pin(struct snd_soc_codec *codec, char *pin)
+{
+ return snd_soc_dapm_set_pin(codec, pin, 0);
}
-EXPORT_SYMBOL_GPL(snd_soc_dapm_set_endpoint);
+EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin);
/**
- * snd_soc_dapm_get_endpoint_status - get audio endpoint status
+ * snd_soc_dapm_get_pin_status - get audio pin status
* @codec: audio codec
- * @endpoint: audio signal endpoint (or start point)
+ * @pin: audio signal pin endpoint (or start point)
*
- * Get audio endpoint status - connected or disconnected.
+ * Get audio pin status - connected or disconnected.
*
- * Returns status
+ * Returns 1 for connected otherwise 0.
*/
-int snd_soc_dapm_get_endpoint_status(struct snd_soc_codec *codec,
- char *endpoint)
+int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, char *pin)
{
struct snd_soc_dapm_widget *w;
list_for_each_entry(w, &codec->dapm_widgets, list) {
- if (!strcmp(w->name, endpoint))
+ if (!strcmp(w->name, pin))
return w->connected;
}
return 0;
}
-EXPORT_SYMBOL_GPL(snd_soc_dapm_get_endpoint_status);
+EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status);
/**
* snd_soc_dapm_free - free dapm resources
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