3 files changed, 46 insertions, 20 deletions

diff --git a/audio_hw.c b/audio_hw.c
index 685bc4a..403f6cd 100644
--- a/audio_hw.c
+++ b/audio_hw.c
@@ -36,28 +36,19 @@
 
 static uint32_t audio_hw_get_supported_devices(const struct audio_hw_device *dev)
 {
+	struct tinyalsa_audio_device *tinyalsa_audio_device;
+
 	LOGD("%s(%p)", __func__, dev);
 
-	int supported_output_devices = AUDIO_DEVICE_OUT_EARPIECE |
-		AUDIO_DEVICE_OUT_SPEAKER |
-		AUDIO_DEVICE_OUT_WIRED_HEADSET |
-		AUDIO_DEVICE_OUT_WIRED_HEADPHONE |
-		AUDIO_DEVICE_OUT_AUX_DIGITAL |
-		AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET |
-		AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET |
-		AUDIO_DEVICE_OUT_ALL_SCO |
-		AUDIO_DEVICE_OUT_DEFAULT;
-
-	int supported_input_devices = AUDIO_DEVICE_IN_COMMUNICATION |
-		AUDIO_DEVICE_IN_AMBIENT |
-		AUDIO_DEVICE_IN_BUILTIN_MIC |
-		AUDIO_DEVICE_IN_WIRED_HEADSET |
-		AUDIO_DEVICE_IN_AUX_DIGITAL |
-		AUDIO_DEVICE_IN_BACK_MIC |
-		AUDIO_DEVICE_IN_ALL_SCO |
-		AUDIO_DEVICE_IN_DEFAULT;
-
-	return supported_output_devices | supported_input_devices;
+	if(dev == NULL)
+		return -1;
+
+	tinyalsa_audio_device = (struct tinyalsa_audio_device *) dev;
+
+	if(tinyalsa_audio_device->mixer == NULL)
+		return -1;
+
+	return (uint32_t) tinyalsa_mixer_get_supported_devices(tinyalsa_audio_device->mixer);
 }
 
 static int audio_hw_init_check(const struct audio_hw_device *dev)
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);
diff --git a/mixer.h b/mixer.h
index 5812b76..fd1d67d 100644
--- a/mixer.h
+++ b/mixer.h
@@ -96,6 +96,7 @@ void tinyalsa_mixer_close(struct tinyalsa_mixer *mixer);
 
 struct tinyalsa_mixer_io_props *tinyalsa_mixer_get_input_props(struct tinyalsa_mixer *mixer);
 struct tinyalsa_mixer_io_props *tinyalsa_mixer_get_output_props(struct tinyalsa_mixer *mixer);
+audio_devices_t tinyalsa_mixer_get_supported_devices(struct tinyalsa_mixer *mixer);
 
 int tinyalsa_mixer_set_voice_volume(struct tinyalsa_mixer *mixer, audio_devices_t device);
 int tinyalsa_mixer_set_input_gain(struct tinyalsa_mixer *mixer, audio_devices_t device);