Mixer: Provide supported devices

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>

1 files changed, 34 insertions, 0 deletions

diff --git a/mixer.c b/mixer.c
index 065b939..508fea8 100644
--- a/mixer.c
+++ b/mixer.c
@@ -777,6 +777,40 @@ int tinyalsa_mixer_set_voice_volume(struct tinyalsa_mixer *mixer, audio_devices_
 		&mixer->input, "voice-volume");
 }
 
+audio_devices_t tinyalsa_mixer_get_supported_devices(struct tinyalsa_mixer *mixer)
+{
+	struct tinyalsa_mixer_device *mixer_device;
+	audio_devices_t devices = 0x00;
+	struct list_head *list;
+
+	LOGD("%s(%p)", __func__, mixer);
+
+	if(mixer == NULL)
+		return -1;
+
+	list = mixer->output.devices;
+	while(list != NULL) {
+		if(list->data != NULL) {
+			mixer_device = (struct tinyalsa_mixer_device *) list->data;
+			devices |= mixer_device->props.type;
+		}
+
+		list = list->next;
+	}
+
+	list = mixer->input.devices;
+	while(list != NULL) {
+		if(list->data != NULL) {
+			mixer_device = (struct tinyalsa_mixer_device *) list->data;
+			devices |= mixer_device->props.type;
+		}
+
+		list = list->next;
+	}
+
+	return devices;
+}
+
 struct tinyalsa_mixer_io_props *tinyalsa_mixer_get_output_props(struct tinyalsa_mixer *mixer)
 {
 	LOGD("%s(%p)", __func__, mixer);