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.
Bug: 75041465
Test: try open mic and print log to check if the info is correct
Change-Id: Ied7d0ff9541420b57459893317537ac77b346643
diff --git a/hal/platform_info.c b/hal/platform_info.c
index 58631f2..181460e 100644
--- a/hal/platform_info.c
+++ b/hal/platform_info.c
@@ -36,6 +36,11 @@
GAIN_LEVEL_MAPPING,
APP_TYPE,
MICROPHONE_CHARACTERISTIC,
+ SND_DEVICES,
+ INPUT_SND_DEVICE,
+ INPUT_SND_DEVICE_TO_MIC_MAPPING,
+ SND_DEV,
+ MIC_INFO,
} section_t;
typedef void (* section_process_fn)(const XML_Char **attr);
@@ -49,6 +54,8 @@
static void process_gain_db_to_level_map(const XML_Char **attr);
static void process_app_type(const XML_Char **attr);
static void process_microphone_characteristic(const XML_Char **attr);
+static void process_snd_dev(const XML_Char **attr);
+static void process_mic_info(const XML_Char **attr);
static section_process_fn section_table[] = {
[ROOT] = process_root,
@@ -60,6 +67,8 @@
[GAIN_LEVEL_MAPPING] = process_gain_db_to_level_map,
[APP_TYPE] = process_app_type,
[MICROPHONE_CHARACTERISTIC] = process_microphone_characteristic,
+ [SND_DEV] = process_snd_dev,
+ [MIC_INFO] = process_mic_info,
};
static set_parameters_fn set_parameters = &platform_set_parameters;
@@ -79,6 +88,8 @@
unsigned int value;
};
+static snd_device_t in_snd_device;
+
static const struct audio_string_to_enum mic_locations[AUDIO_MICROPHONE_LOCATION_CNT] = {
AUDIO_MAKE_STRING_FROM_ENUM(AUDIO_MICROPHONE_LOCATION_UNKNOWN),
AUDIO_MAKE_STRING_FROM_ENUM(AUDIO_MICROPHONE_LOCATION_MAINBODY),
@@ -95,6 +106,12 @@
AUDIO_MAKE_STRING_FROM_ENUM(AUDIO_MICROPHONE_DIRECTIONALITY_SUPER_CARDIOID),
};
+static const struct audio_string_to_enum mic_channel_mapping[AUDIO_MICROPHONE_CHANNEL_MAPPING_CNT] = {
+ AUDIO_MAKE_STRING_FROM_ENUM(AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED),
+ AUDIO_MAKE_STRING_FROM_ENUM(AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT),
+ AUDIO_MAKE_STRING_FROM_ENUM(AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED),
+};
+
static const struct audio_string_to_enum device_in_types[] = {
AUDIO_MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_AMBIENT),
AUDIO_MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_COMMUNICATION),
@@ -660,6 +677,66 @@
return;
}
+static void process_snd_dev(const XML_Char **attr)
+{
+ uint32_t curIdx = 0;
+ in_snd_device = SND_DEVICE_NONE;
+
+ if (strcmp(attr[curIdx++], "in_snd_device")) {
+ ALOGE("%s: snd_device not found", __func__);
+ return;
+ }
+ in_snd_device = platform_get_snd_device_index((char *)attr[curIdx++]);
+ if (in_snd_device < SND_DEVICE_IN_BEGIN ||
+ in_snd_device >= SND_DEVICE_IN_END) {
+ ALOGE("%s: Sound device not valid", __func__);
+ in_snd_device = SND_DEVICE_NONE;
+ }
+
+ return;
+}
+
+static void process_mic_info(const XML_Char **attr)
+{
+ uint32_t curIdx = 0;
+ struct mic_info microphone;
+
+ memset(µphone.channel_mapping, AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED,
+ sizeof(microphone.channel_mapping));
+
+ if (strcmp(attr[curIdx++], "mic_device_id")) {
+ ALOGE("%s: mic_device_id not found", __func__);
+ goto on_error;
+ }
+ strlcpy(microphone.device_id,
+ (char *)attr[curIdx++], AUDIO_MICROPHONE_ID_MAX_LEN);
+
+ if (strcmp(attr[curIdx++], "channel_mapping")) {
+ ALOGE("%s: channel_mapping not found", __func__);
+ goto on_error;
+ }
+ const char *token = strtok((char *)attr[curIdx++], " ");
+ uint32_t idx = 0;
+ while (token) {
+ if (!find_enum_by_string(mic_channel_mapping, token,
+ AUDIO_MICROPHONE_CHANNEL_MAPPING_CNT,
+ µphone.channel_mapping[idx++])) {
+ ALOGE("%s: channel_mapping %s in %s not found!",
+ __func__, attr[--curIdx], PLATFORM_INFO_XML_PATH);
+ goto on_error;
+ }
+ token = strtok(NULL, " ");
+ }
+ microphone.channel_count = idx;
+
+ platform_set_microphone_map(my_data.platform, in_snd_device,
+ µphone);
+ return;
+on_error:
+ in_snd_device = SND_DEVICE_NONE;
+ return;
+}
+
static void start_tag(void *userdata __unused, const XML_Char *tag_name,
const XML_Char **attr)
{
@@ -685,6 +762,8 @@
section = APP_TYPE;
} else if (strcmp(tag_name, "microphone_characteristics") == 0) {
section = MICROPHONE_CHARACTERISTIC;
+ } else if (strcmp(tag_name, "snd_devices") == 0) {
+ section = SND_DEVICES;
} else if (strcmp(tag_name, "device") == 0) {
if ((section != ACDB) && (section != BACKEND_NAME) && (section != OPERATOR_SPECIFIC)) {
ALOGE("device tag only supported for acdb/backend names");
@@ -733,6 +812,36 @@
}
section_process_fn fn = section_table[MICROPHONE_CHARACTERISTIC];
fn(attr);
+ } else if (strcmp(tag_name, "input_snd_device") == 0) {
+ if (section != SND_DEVICES) {
+ ALOGE("input_snd_device tag only supported with SND_DEVICES section");
+ return;
+ }
+ section = INPUT_SND_DEVICE;
+ } else if (strcmp(tag_name, "input_snd_device_mic_mapping") == 0) {
+ if (section != INPUT_SND_DEVICE) {
+ ALOGE("input_snd_device_mic_mapping tag only supported with INPUT_SND_DEVICE section");
+ return;
+ }
+ section = INPUT_SND_DEVICE_TO_MIC_MAPPING;
+ } else if (strcmp(tag_name, "snd_dev") == 0) {
+ if (section != INPUT_SND_DEVICE_TO_MIC_MAPPING) {
+ ALOGE("snd_dev tag only supported with INPUT_SND_DEVICE_TO_MIC_MAPPING section");
+ return;
+ }
+ section_process_fn fn = section_table[SND_DEV];
+ fn(attr);
+ } else if (strcmp(tag_name, "mic_info") == 0) {
+ if (section != INPUT_SND_DEVICE_TO_MIC_MAPPING) {
+ ALOGE("mic_info tag only supported with INPUT_SND_DEVICE_TO_MIC_MAPPING section");
+ return;
+ }
+ if (in_snd_device == SND_DEVICE_NONE) {
+ ALOGE("%s: Error in previous tags, do not process mic info", __func__);
+ return;
+ }
+ section_process_fn fn = section_table[MIC_INFO];
+ fn(attr);
}
} else {
if(strcmp(tag_name, "config_params") == 0) {
@@ -769,6 +878,12 @@
section = ROOT;
} else if (strcmp(tag_name, "microphone_characteristics") == 0) {
section = ROOT;
+ } else if (strcmp(tag_name, "snd_devices") == 0) {
+ section = ROOT;
+ } else if (strcmp(tag_name, "input_snd_device") == 0) {
+ section = SND_DEVICES;
+ } else if (strcmp(tag_name, "input_snd_device_mic_mapping") == 0) {
+ section = INPUT_SND_DEVICE;
}
}