hal: Add support to get active microphones on input stream
Add support to get active microphones on input stream.
Get microphone device id and channel map based on active
usecase and sound device. Active microphone characteristics
are retrieved from platform info using this device id.
Change-Id: I63ec99e70980869097fa896bc4b309fc0583fb3a
diff --git a/hal/platform_api.h b/hal/platform_api.h
index 53a4888..226275e 100644
--- a/hal/platform_api.h
+++ b/hal/platform_api.h
@@ -51,6 +51,12 @@
uint32_t level;
};
+struct mic_info {
+ char device_id[AUDIO_MICROPHONE_ID_MAX_LEN];
+ size_t channel_count;
+ audio_microphone_channel_mapping_t channel_mapping[AUDIO_CHANNEL_COUNT_MAX];
+};
+
enum {
NATIVE_AUDIO_MODE_SRC = 1,
NATIVE_AUDIO_MODE_TRUE_44_1,
@@ -285,4 +291,16 @@
int *fd, uint32_t *size);
int platform_get_ec_ref_loopback_snd_device(int channel_count);
const char * platform_get_snd_card_name_for_acdb_loader(const char *snd_card_name);
+
+bool platform_set_microphone_characteristic(void *platform,
+ struct audio_microphone_characteristic_t mic);
+bool platform_set_microphone_map(void *platform, snd_device_t in_snd_device,
+ const struct mic_info *info);
+int platform_get_microphones(void *platform,
+ struct audio_microphone_characteristic_t *mic_array,
+ size_t *mic_count);
+int platform_get_active_microphones(void *platform, unsigned int channels,
+ audio_usecase_t usecase,
+ struct audio_microphone_characteristic_t *mic_array,
+ size_t *mic_count);
#endif // AUDIO_PLATFORM_API_H