hal: support bus dev volume over audio port config (f13dd499) · Commits · e / devices / Fairphone 4 / android_hardware_qcom_audio

hal/audio_extn/audio_extn.h

+6 −0

Original line number	Diff line number	Diff line
		@@ -1220,6 +1220,8 @@ int audio_extn_utils_get_license_params(const struct audio_device *adev, struct
		#define audio_extn_auto_hal_open_output_stream(out) (0)
		#define audio_extn_auto_hal_is_bus_device_usecase(uc_id) (0)
		#define audio_extn_auto_hal_get_snd_device_for_car_audio_stream(out) (0)
		#define audio_extn_auto_hal_get_audio_port(dev, config) (0)
		#define audio_extn_auto_hal_set_audio_port_config(dev, config) (0)
		#else
		int32_t audio_extn_auto_hal_init(struct audio_device *adev);
		void audio_extn_auto_hal_deinit(void);
		@@ -1237,6 +1239,10 @@ int32_t audio_extn_auto_hal_get_car_audio_stream_from_address(const char *addres
		int32_t audio_extn_auto_hal_open_output_stream(struct stream_out *out);
		bool audio_extn_auto_hal_is_bus_device_usecase(audio_usecase_t uc_id);
		snd_device_t audio_extn_auto_hal_get_snd_device_for_car_audio_stream(struct stream_out *out);
		int audio_extn_auto_hal_get_audio_port(struct audio_hw_device *dev,
		struct audio_port *config);
		int audio_extn_auto_hal_set_audio_port_config(struct audio_hw_device *dev,
		const struct audio_port_config *config);
		#endif

		bool audio_extn_edid_is_supported_sr(edid_audio_info* info, int sr);

hal/audio_extn/auto_hal.c

+128 −0

Original line number	Diff line number	Diff line
		@@ -432,6 +432,134 @@ snd_device_t audio_extn_auto_hal_get_snd_device_for_car_audio_stream(struct stre
		}
		return snd_device;
		}

		int audio_extn_auto_hal_get_audio_port(struct audio_hw_device *dev __unused,
		struct audio_port *config __unused)
		{
		return -ENOSYS;
		}

		/* Volume min/max defined by audio policy configuration in millibel.
		* Support a range of -60dB to 6dB.
		*/
		#define MIN_VOLUME_VALUE_MB -6000
		#define MAX_VOLUME_VALUE_MB 600

		int audio_extn_auto_hal_set_audio_port_config(struct audio_hw_device *dev,
		const struct audio_port_config *config)
		{
		struct audio_device adev = (struct audio_device )dev;
		int ret = 0;
		struct listnode *node = NULL;
		float volume = 0.0;

		ALOGV("%s: enter", __func__);

		if (!config) {
		ALOGE("%s: invalid input parameters", __func__);
		return -EINVAL;
		}

		/* For Android automotive, audio port config from car framework
		* allows volume gain to be set to device at audio HAL level, where
		* the gain can be applied in DSP mixer or CODEC amplifier.
		*
		* Following routing should be considered:
		* MIX -> DEVICE
		* DEVICE -> MIX
		* DEVICE -> DEVICE
		*
		* For BUS devices routed to/from mixer, gain will be applied to DSP
		* mixer via kernel control which audio HAL stream is associated with.
		*
		* For external (source) device (FM TUNER/AUX), routing is typically
		* done with AudioPatch to (sink) device (SPKR), thus gain should be
		* applied to CODEC amplifier via codec plugin extention as audio HAL
		* stream may not be available for external audio routing.
		*/
		if (config->type == AUDIO_PORT_TYPE_DEVICE) {
		ALOGI("%s: device port: type %x, address %s, gain %d mB", __func__,
		config->ext.device.type,
		config->ext.device.address,
		config->gain.values[0]);
		if (config->role == AUDIO_PORT_ROLE_SINK) {
		/* handle output devices */
		pthread_mutex_lock(&adev->lock);
		list_for_each(node, &adev->active_outputs_list) {
		streams_output_ctxt_t *out_ctxt = node_to_item(node,
		streams_output_ctxt_t,
		list);
		/* limit audio gain support for bus device only */
		if (out_ctxt->output->devices == AUDIO_DEVICE_OUT_BUS &&
		out_ctxt->output->devices == config->ext.device.type &&
		strcmp(out_ctxt->output->address,
		config->ext.device.address) == 0) {
		/* millibel = 1/100 dB = 1/1000 bel
		* q13 = (10^(mdb/100/20))*(2^13)
		*/
		volume = powf(10.0, ((float)config->gain.values[0] / 2000));
		ALOGV("%s: set volume to stream: %p", __func__,
		&out_ctxt->output->stream);
		/* set gain if output stream is active */
		out_ctxt->output->stream.set_volume(
		&out_ctxt->output->stream,
		volume, volume);
		}
		}
		/* NOTE: Ideally audio patch list is a superset of output stream list above.
		* However, audio HAL does not maintain patches for mix -> device or
		* device -> mix currently. Thus doing separate lookups for device ->
		* device in audio patch list.
		* FIXME: Cannot cache the gain if audio patch is not created. Expected gain
		* to be part of port config upon audio patch creation. If not, need
		* to create a list of audio port configs in adev context.
		*/
		#if 0
		list_for_each(node, &adev->audio_patch_record_list) {
		struct audio_patch_record *patch_record = node_to_item(node,
		struct audio_patch_record,
		list);
		/* limit audio gain support for bus device only */
		if (patch_record->sink.type == AUDIO_PORT_TYPE_DEVICE &&
		patch_record->sink.role == AUDIO_PORT_ROLE_SINK &&
		patch_record->sink.ext.device.type == AUDIO_DEVICE_OUT_BUS &&
		patch_record->sink.ext.device.type == config->ext.device.type &&
		strcmp(patch_record->sink.ext.device.address,
		config->ext.device.address) == 0) {
		/* cache / update gain per audio patch sink */
		patch_record->sink.gain = config->gain;

		struct audio_usecase *uc_info = get_usecase_from_list(adev,
		patch_record->usecase);
		if (!uc_info) {
		ALOGE("%s: failed to find the usecase %d",
		__func__, patch_record->usecase);
		ret = -EINVAL;
		} else {
		volume = config->gain->values[0];
		/* linear interpolation from millibel to level */
		int vol_level = lrint(((volume + (0 - MIN_VOLUME_VALUE_MB)) /
		(MAX_VOLUME_VALUE_MB - MIN_VOLUME_VALUE_MB)) * 40);
		ALOGV("%s: set volume to patch: %p", __func__,
		patch_record->handle);
		ret = audio_extn_ext_hw_plugin_set_audio_gain(adev,
		uc_info, vol_level);
		}
		}
		}
		#endif
		pthread_mutex_unlock(&adev->lock);
		} else if (config->role == AUDIO_PORT_ROLE_SOURCE) {
		// FIXME: handle input devices.
		}
		}

		/* Only handle device port currently. */

		ALOGV("%s: exit", __func__);
		return ret;
		}

		int32_t audio_extn_auto_hal_init(struct audio_device *adev)
		{
		int32_t ret = 0;

hal/audio_hw.c

+35 −2

Original line number	Diff line number	Diff line
		@@ -3508,6 +3508,8 @@ int start_output_stream(struct stream_out *out)
		out->usecase == USECASE_AUDIO_PLAYBACK_ULL) && (out->apply_volume)) {
		out_set_pcm_volume(&out->stream, out->volume_l, out->volume_r);
		out->apply_volume = false;
		} else if (audio_extn_auto_hal_is_bus_device_usecase(out->usecase)) {
		out_set_pcm_volume(&out->stream, out->volume_l, out->volume_r);
		}
		} else {
		platform_set_stream_channel_map(adev->platform, out->channel_mask,
		@@ -3570,6 +3572,22 @@ int start_output_stream(struct stream_out *out)
		adev->offload_effects_start_output(out->handle, out->pcm_device_id, adev->mixer);
		audio_extn_check_and_set_dts_hpx_state(adev);
		}

		if (out->devices & AUDIO_DEVICE_OUT_BUS) {
		/* Update cached volume from media to offload/direct stream */
		struct listnode *node = NULL;
		list_for_each(node, &adev->active_outputs_list) {
		streams_output_ctxt_t *out_ctxt = node_to_item(node,
		streams_output_ctxt_t,
		list);
		if (out_ctxt->output->usecase == USECASE_AUDIO_PLAYBACK_MEDIA) {
		out->volume_l = out_ctxt->output->volume_l;
		out->volume_r = out_ctxt->output->volume_r;
		}
		}
		out_set_compr_volume(&out->stream,
		out->volume_l, out->volume_r);
		}
		}

		if (ret == 0) {
		@@ -4948,6 +4966,13 @@ static int out_set_volume(struct audio_stream_out *stream, float left,
		out->volume_l = left;
		out->volume_r = right;
		return ret;
		} else if (audio_extn_auto_hal_is_bus_device_usecase(out->usecase)) {
		ALOGV("%s: bus device set volume called", __func__);
		if (!out->standby)
		ret = out_set_pcm_volume(stream, left, right);
		out->volume_l = left;
		out->volume_r = right;
		return ret;
		}

		return -ENOSYS;
		@@ -8908,13 +8933,21 @@ int adev_release_audio_patch(struct audio_hw_device *dev,

		int adev_get_audio_port(struct audio_hw_device dev, struct audio_port config)
		{
		return audio_extn_hw_loopback_get_audio_port(dev, config);
		int ret = 0;

		ret = audio_extn_hw_loopback_get_audio_port(dev, config);
		ret \|= audio_extn_auto_hal_get_audio_port(dev, config);
		return ret;
		}

		int adev_set_audio_port_config(struct audio_hw_device *dev,
		const struct audio_port_config *config)
		{
		return audio_extn_hw_loopback_set_audio_port_config(dev, config);
		int ret = 0;

		ret = audio_extn_hw_loopback_set_audio_port_config(dev, config);
		ret \|= audio_extn_auto_hal_set_audio_port_config(dev, config);
		return ret;
		}

		static int adev_dump(const audio_hw_device_t *device __unused,