Merge "Put usb stream into standby on disconnection if offloading" into oc-dr1-dev (0b85566f) · Commits · e / devices / Fairphone 4 / android_hardware_qcom_audio

hal/audio_hw.c

+26 −5

Original line number	Diff line number	Diff line
		@@ -2067,16 +2067,13 @@ static int out_set_format(struct audio_stream *stream __unused, audio_format_t f
		return -ENOSYS;
		}

		static int out_standby(struct audio_stream *stream)
		/* must be called with out->lock locked */
		static int out_standby_l(struct audio_stream *stream)
		{
		struct stream_out out = (struct stream_out )stream;
		struct audio_device *adev = out->dev;
		bool do_stop = true;

		ALOGV("%s: enter: usecase(%d: %s)", __func__,
		out->usecase, use_case_table[out->usecase]);

		lock_output_stream(out);
		if (!out->standby) {
		if (adev->adm_deregister_stream)
		adev->adm_deregister_stream(adev->adm_data, out->handle);
		@@ -2105,6 +2102,18 @@ static int out_standby(struct audio_stream *stream)
		}
		pthread_mutex_unlock(&adev->lock);
		}
		return 0;
		}

		static int out_standby(struct audio_stream *stream)
		{
		struct stream_out out = (struct stream_out )stream;

		ALOGV("%s: enter: usecase(%d: %s)", __func__,
		out->usecase, use_case_table[out->usecase]);

		lock_output_stream(out);
		out_standby_l(stream);
		pthread_mutex_unlock(&out->lock);
		ALOGV("%s: exit", __func__);
		return 0;
		@@ -2220,7 +2229,19 @@ static int out_set_parameters(struct audio_stream stream, const char kvpairs)
		ret = str_parms_get_str(parms, AUDIO_PARAMETER_STREAM_ROUTING, value, sizeof(value));
		if (ret >= 0) {
		val = atoi(value);

		lock_output_stream(out);

		// The usb driver needs to be closed after usb device disconnection
		// otherwise audio is no longer played on the new usb devices.
		// By forcing the stream in standby, the usb stack refcount drops to 0
		// and the driver is closed.
		if (out->usecase == USECASE_AUDIO_PLAYBACK_OFFLOAD && val == AUDIO_DEVICE_NONE &&
		audio_is_usb_out_device(out->devices)) {
		ALOGD("%s() putting the usb device in standby after disconnection", __func__);
		out_standby_l(&out->stream.common);
		}

		pthread_mutex_lock(&adev->lock);

		/*