hal: add support to send/receive voice call TX/RX audio (ab9b1ef5) · Commits · e / os / android_hardware_qcom_audio

hal/audio_hw.c

+160 −40

Original line number	Diff line number	Diff line
		@@ -60,6 +60,8 @@
		#define COMPRESS_OFFLOAD_PLAYBACK_LATENCY 96
		#define COMPRESS_PLAYBACK_VOLUME_MAX 0x2000

		#define PROXY_OPEN_RETRY_COUNT 100
		#define PROXY_OPEN_WAIT_TIME 20

		#define USECASE_AUDIO_PLAYBACK_PRIMARY USECASE_AUDIO_PLAYBACK_DEEP_BUFFER

		@@ -102,6 +104,37 @@ struct pcm_config pcm_config_audio_capture = {
		.format = PCM_FORMAT_S16_LE,
		};

		#define AFE_PROXY_CHANNEL_COUNT 2
		#define AFE_PROXY_SAMPLING_RATE 48000

		#define AFE_PROXY_PLAYBACK_PERIOD_SIZE 768
		#define AFE_PROXY_PLAYBACK_PERIOD_COUNT 4

		struct pcm_config pcm_config_afe_proxy_playback = {
		.channels = AFE_PROXY_CHANNEL_COUNT,
		.rate = AFE_PROXY_SAMPLING_RATE,
		.period_size = AFE_PROXY_PLAYBACK_PERIOD_SIZE,
		.period_count = AFE_PROXY_PLAYBACK_PERIOD_COUNT,
		.format = PCM_FORMAT_S16_LE,
		.start_threshold = AFE_PROXY_PLAYBACK_PERIOD_SIZE,
		.stop_threshold = INT_MAX,
		.avail_min = AFE_PROXY_PLAYBACK_PERIOD_SIZE,
		};

		#define AFE_PROXY_RECORD_PERIOD_SIZE 768
		#define AFE_PROXY_RECORD_PERIOD_COUNT 4

		struct pcm_config pcm_config_afe_proxy_record = {
		.channels = AFE_PROXY_CHANNEL_COUNT,
		.rate = AFE_PROXY_SAMPLING_RATE,
		.period_size = AFE_PROXY_RECORD_PERIOD_SIZE,
		.period_count = AFE_PROXY_RECORD_PERIOD_COUNT,
		.format = PCM_FORMAT_S16_LE,
		.start_threshold = AFE_PROXY_RECORD_PERIOD_SIZE,
		.stop_threshold = INT_MAX,
		.avail_min = AFE_PROXY_RECORD_PERIOD_SIZE,
		};

		const char * const use_case_table[AUDIO_USECASE_MAX] = {
		[USECASE_AUDIO_PLAYBACK_DEEP_BUFFER] = "deep-buffer-playback",
		[USECASE_AUDIO_PLAYBACK_LOW_LATENCY] = "low-latency-playback",
		@@ -132,6 +165,9 @@ const char * const use_case_table[AUDIO_USECASE_MAX] = {
		[USECASE_INCALL_MUSIC_UPLINK2] = "incall_music_uplink2",
		[USECASE_AUDIO_SPKR_CALIB_RX] = "spkr-rx-calib",
		[USECASE_AUDIO_SPKR_CALIB_TX] = "spkr-vi-record",

		[USECASE_AUDIO_PLAYBACK_AFE_PROXY] = "afe-proxy-playback",
		[USECASE_AUDIO_RECORD_AFE_PROXY] = "afe-proxy-record",
		};


		@@ -375,7 +411,6 @@ int disable_snd_device(struct audio_device *adev,
		/* exit usb capture thread */
		if(SND_DEVICE_IN_USB_HEADSET_MIC == snd_device)
		audio_extn_usb_stop_capture();

		if (snd_device == SND_DEVICE_OUT_SPEAKER &&
		audio_extn_spkr_prot_is_enabled()) {
		audio_extn_spkr_prot_stop_processing();
		@@ -661,14 +696,14 @@ int select_devices(struct audio_device *adev, audio_usecase_t uc_id)
		usecase->devices = usecase->stream.in->device;
		out_snd_device = SND_DEVICE_NONE;
		if (in_snd_device == SND_DEVICE_NONE) {
		audio_devices_t out_device = AUDIO_DEVICE_NONE;
		if ((adev->active_input->source == AUDIO_SOURCE_VOICE_COMMUNICATION \|\| (adev->mode == AUDIO_MODE_IN_COMMUNICATION && adev->active_input->source == AUDIO_SOURCE_MIC)) &&
		adev->primary_output && !adev->primary_output->standby) {
		in_snd_device = platform_get_input_snd_device(adev->platform,
		adev->primary_output->devices);
		} else {
		in_snd_device = platform_get_input_snd_device(adev->platform,
		AUDIO_DEVICE_NONE);
		out_device = adev->primary_output->devices;
		} else if(usecase->id == USECASE_AUDIO_RECORD_AFE_PROXY) {
		out_device = AUDIO_DEVICE_OUT_TELEPHONY_TX;
		}
		in_snd_device = platform_get_input_snd_device(adev->platform, out_device);
		}
		}
		}
		@@ -812,17 +847,34 @@ int start_input_stream(struct stream_in *in)
		select_devices(adev, in->usecase);

		ALOGV("%s: Opening PCM device card_id(%d) device_id(%d), channels %d",
		__func__, adev->snd_card,
		in->pcm_device_id, in->config.channels);
		in->pcm = pcm_open(adev->snd_card,
		in->pcm_device_id, PCM_IN, &in->config);
		if (in->pcm && !pcm_is_ready(in->pcm)) {
		__func__, adev->snd_card, in->pcm_device_id, in->config.channels);

		unsigned int flags = PCM_IN;
		unsigned int pcm_open_retry_entry_count = 0;

		if (in->usecase == USECASE_AUDIO_RECORD_AFE_PROXY) {
		flags \|= PCM_MMAP \| PCM_NOIRQ;
		pcm_open_retry_entry_count = PROXY_OPEN_RETRY_COUNT;
		}

		while(1) {
		in->pcm = pcm_open(adev->snd_card, in->pcm_device_id,
		flags, &in->config);
		if (in->pcm == NULL \|\| !pcm_is_ready(in->pcm)) {
		ALOGE("%s: %s", __func__, pcm_get_error(in->pcm));
		if (in->pcm != NULL) {
		pcm_close(in->pcm);
		in->pcm = NULL;
		}
		if (pcm_open_retry_entry_count-- == 0) {
		ret = -EIO;
		goto error_open;
		}
		usleep(PROXY_OPEN_WAIT_TIME * 1000);
		continue;
		}
		break;
		}
		ALOGV("%s: exit", __func__);
		return ret;

		@@ -1150,16 +1202,32 @@ int start_output_stream(struct stream_out *out)
		ALOGV("%s: Opening PCM device card_id(%d) device_id(%d)",
		__func__, 0, out->pcm_device_id);
		if (out->usecase != USECASE_AUDIO_PLAYBACK_OFFLOAD) {
		out->pcm = pcm_open(adev->snd_card,
		out->pcm_device_id,
		PCM_OUT \| PCM_MONOTONIC, &out->config);
		unsigned int flags = PCM_OUT;
		unsigned int pcm_open_retry_count = 0;
		if (out->usecase == USECASE_AUDIO_PLAYBACK_AFE_PROXY) {
		flags \|= PCM_MMAP \| PCM_NOIRQ;
		pcm_open_retry_count = PROXY_OPEN_RETRY_COUNT;
		} else
		flags \|= PCM_MONOTONIC;

		while (1) {
		out->pcm = pcm_open(adev->snd_card, out->pcm_device_id,
		flags, &out->config);
		if (out->pcm && !pcm_is_ready(out->pcm)) {
		ALOGE("%s: %s", __func__, pcm_get_error(out->pcm));
		if (out->pcm != NULL) {
		pcm_close(out->pcm);
		out->pcm = NULL;
		}
		if (pcm_open_retry_count-- == 0) {
		ret = -EIO;
		goto error_open;
		}
		usleep(PROXY_OPEN_WAIT_TIME * 1000);
		continue;
		}
		break;
		}
		} else {
		out->pcm = NULL;
		out->compr = compress_open(adev->snd_card,
		@@ -1397,6 +1465,10 @@ static int parse_compress_metadata(struct stream_out out, struct str_parms par
		return 0;
		}

		static bool output_drives_call(struct audio_device adev, struct stream_out out)
		{
		return out == adev->primary_output \|\| out == adev->voice_tx_output;
		}

		static int out_set_parameters(struct audio_stream stream, const char kvpairs)
		{
		@@ -1431,6 +1503,13 @@ static int out_set_parameters(struct audio_stream stream, const char kvpairs)
		val = AUDIO_DEVICE_OUT_SPEAKER;
		}

		if ((adev->mode == AUDIO_MODE_NORMAL) &&
		voice_is_in_call(adev) &&
		output_drives_call(adev, out)) {
		ret = voice_stop_call(adev);
		adev->current_call_output = NULL;
		}

		/*
		* select_devices() call below switches all the usecases on the same
		* backend to the new device. Refer to check_usecases_codec_backend() in
		@@ -1456,20 +1535,14 @@ static int out_set_parameters(struct audio_stream stream, const char kvpairs)
		select_devices(adev, out->usecase);

		if ((adev->mode == AUDIO_MODE_IN_CALL) &&
		!voice_is_in_call(adev) &&
		(out == adev->primary_output)) {
		output_drives_call(adev, out)) {
		adev->current_call_output = out;
		if (!voice_is_in_call(adev))
		ret = voice_start_call(adev);
		} else if ((adev->mode == AUDIO_MODE_IN_CALL) &&
		voice_is_in_call(adev) &&
		(out == adev->primary_output)) {
		else
		voice_update_devices_for_all_voice_usecases(adev);
		}
		}

		if ((adev->mode == AUDIO_MODE_NORMAL) &&
		voice_is_in_call(adev) &&
		(out == adev->primary_output)) {
		ret = voice_stop_call(adev);
		}

		pthread_mutex_unlock(&adev->lock);
		@@ -1629,6 +1702,9 @@ static ssize_t out_write(struct audio_stream_out stream, const void buffer,
		if (out->muted)
		memset((void *)buffer, 0, bytes);
		ALOGVV("%s: writing buffer (%d bytes) to pcm device", __func__, bytes);
		if (out->usecase == USECASE_AUDIO_PLAYBACK_AFE_PROXY)
		ret = pcm_mmap_write(out->pcm, (void *)buffer, bytes);
		else
		ret = pcm_write(out->pcm, (void *)buffer, bytes);
		if (ret == 0)
		out->written += bytes / (out->config.channels * sizeof(short));
		@@ -1923,7 +1999,7 @@ static int in_set_parameters(struct audio_stream stream, const char kvpairs)
		err = str_parms_get_str(parms, AUDIO_PARAMETER_STREAM_ROUTING, value, sizeof(value));
		if (err >= 0) {
		val = atoi(value);
		if ((in->device != val) && (val != 0)) {
		if (((int)in->device != val) && (val != 0)) {
		in->device = val;
		/* If recording is in progress, change the tx device to new device */
		if (!in->standby)
		@@ -1991,6 +2067,8 @@ static ssize_t in_read(struct audio_stream_in stream, void buffer,
		ret = audio_extn_ssr_read(stream, buffer, bytes);
		else if (audio_extn_compr_cap_usecase_supported(in->usecase))
		ret = audio_extn_compr_cap_read(in, buffer, bytes);
		else if (in->usecase == USECASE_AUDIO_RECORD_AFE_PROXY)
		ret = pcm_mmap_read(in->pcm, buffer, bytes);
		else
		ret = pcm_read(in->pcm, buffer, bytes);
		}
		@@ -2238,6 +2316,28 @@ static int adev_open_output_stream(struct audio_hw_device *dev,
		goto error_open;
		}
		#endif
		} else if (out->devices == AUDIO_DEVICE_OUT_TELEPHONY_TX) {
		if (config->sample_rate == 0)
		config->sample_rate = AFE_PROXY_SAMPLING_RATE;
		if (config->sample_rate != 48000 && config->sample_rate != 16000 &&
		config->sample_rate != 8000) {
		config->sample_rate = AFE_PROXY_SAMPLING_RATE;
		ret = -EINVAL;
		goto error_open;
		}
		out->sample_rate = config->sample_rate;
		out->config.rate = config->sample_rate;
		if (config->format == AUDIO_FORMAT_DEFAULT)
		config->format = AUDIO_FORMAT_PCM_16_BIT;
		if (config->format != AUDIO_FORMAT_PCM_16_BIT) {
		config->format = AUDIO_FORMAT_PCM_16_BIT;
		ret = -EINVAL;
		goto error_open;
		}
		out->format = config->format;
		out->usecase = USECASE_AUDIO_PLAYBACK_AFE_PROXY;
		out->config = pcm_config_afe_proxy_playback;
		adev->voice_tx_output = out;
		} else if (out->flags & AUDIO_OUTPUT_FLAG_FAST) {
		out->usecase = USECASE_AUDIO_PLAYBACK_LOW_LATENCY;
		out->config = pcm_config_low_latency;
		@@ -2572,7 +2672,27 @@ static int adev_open_input_stream(struct audio_hw_device *dev,
		in->config.rate = config->sample_rate;
		in->format = config->format;

		if (channel_count == 6) {
		if (in->device == AUDIO_DEVICE_IN_TELEPHONY_RX) {
		if (config->sample_rate == 0)
		config->sample_rate = AFE_PROXY_SAMPLING_RATE;
		if (config->sample_rate != 48000 && config->sample_rate != 16000 &&
		config->sample_rate != 8000) {
		config->sample_rate = AFE_PROXY_SAMPLING_RATE;
		ret = -EINVAL;
		goto err_open;
		}
		if (config->format == AUDIO_FORMAT_DEFAULT)
		config->format = AUDIO_FORMAT_PCM_16_BIT;
		if (config->format != AUDIO_FORMAT_PCM_16_BIT) {
		config->format = AUDIO_FORMAT_PCM_16_BIT;
		ret = -EINVAL;
		goto err_open;
		}
		in->usecase = USECASE_AUDIO_RECORD_AFE_PROXY;
		in->config = pcm_config_afe_proxy_record;
		in->config.channels = channel_count;
		in->config.rate = config->sample_rate;
		} else if (channel_count == 6) {
		if(audio_extn_ssr_get_enabled()) {
		if(audio_extn_ssr_init(adev, in)) {
		ALOGE("%s: audio_extn_ssr_init failed", __func__);

hal/audio_hw.h

+7 −1

Original line number	Diff line number	Diff line
		@@ -98,6 +98,10 @@ typedef enum {

		USECASE_AUDIO_SPKR_CALIB_RX,
		USECASE_AUDIO_SPKR_CALIB_TX,

		USECASE_AUDIO_PLAYBACK_AFE_PROXY,
		USECASE_AUDIO_RECORD_AFE_PROXY,

		AUDIO_USECASE_MAX
		} audio_usecase_t;

		@@ -177,7 +181,7 @@ struct stream_in {
		int standby;
		int source;
		int pcm_device_id;
		int device;
		audio_devices_t device;
		audio_channel_mask_t channel_mask;
		audio_usecase_t usecase;
		bool enable_aec;
		@@ -218,6 +222,8 @@ struct audio_device {
		audio_devices_t out_device;
		struct stream_in *active_input;
		struct stream_out *primary_output;
		struct stream_out *voice_tx_output;
		struct stream_out *current_call_output;
		bool bluetooth_nrec;
		bool screen_off;
		int *snd_dev_ref_cnt;

hal/msm8960/platform.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -118,4 +118,7 @@ enum {
		#define AUDIO_CAPTURE_PERIOD_DURATION_MSEC 20
		#define AUDIO_CAPTURE_PERIOD_COUNT 2

		#define AFE_PROXY_PLAYBACK_PCM_DEVICE 7
		#define AFE_PROXY_RECORD_PCM_DEVICE 8

		#endif // QCOM_AUDIO_PLATFORM_H

hal/msm8974/platform.c

+18 −2

Original line number	Diff line number	Diff line
		@@ -165,6 +165,11 @@ static const int pcm_device_table[AUDIO_USECASE_MAX][2] = {
		INCALL_MUSIC_UPLINK2_PCM_DEVICE},
		[USECASE_AUDIO_SPKR_CALIB_RX] = {SPKR_PROT_CALIB_RX_PCM_DEVICE, -1},
		[USECASE_AUDIO_SPKR_CALIB_TX] = {-1, SPKR_PROT_CALIB_TX_PCM_DEVICE},

		[USECASE_AUDIO_PLAYBACK_AFE_PROXY] = {AFE_PROXY_PLAYBACK_PCM_DEVICE,
		AFE_PROXY_RECORD_PCM_DEVICE},
		[USECASE_AUDIO_RECORD_AFE_PROXY] = {AFE_PROXY_PLAYBACK_PCM_DEVICE,
		AFE_PROXY_RECORD_PCM_DEVICE},
		};

		/* Array to store sound devices */
		@@ -186,6 +191,7 @@ static const char * const device_table[SND_DEVICE_MAX] = {
		[SND_DEVICE_OUT_VOICE_TTY_FULL_HEADPHONES] = "voice-tty-full-headphones",
		[SND_DEVICE_OUT_VOICE_TTY_VCO_HEADPHONES] = "voice-tty-vco-headphones",
		[SND_DEVICE_OUT_VOICE_TTY_HCO_HANDSET] = "voice-tty-hco-handset",
		[SND_DEVICE_OUT_VOICE_TX] = "voice-tx",
		[SND_DEVICE_OUT_AFE_PROXY] = "afe-proxy",
		[SND_DEVICE_OUT_USB_HEADSET] = "usb-headphones",
		[SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET] = "speaker-and-usb-headphones",
		@@ -229,6 +235,7 @@ static const char * const device_table[SND_DEVICE_MAX] = {
		[SND_DEVICE_IN_VOICE_TTY_FULL_HEADSET_MIC] = "voice-tty-full-headset-mic",
		[SND_DEVICE_IN_VOICE_TTY_VCO_HANDSET_MIC] = "voice-tty-vco-handset-mic",
		[SND_DEVICE_IN_VOICE_TTY_HCO_HEADSET_MIC] = "voice-tty-hco-headset-mic",
		[SND_DEVICE_IN_VOICE_RX] = "voice-rx",
		[SND_DEVICE_IN_VOICE_REC_MIC] = "voice-rec-mic",
		[SND_DEVICE_IN_VOICE_REC_MIC_NS] = "voice-rec-mic",
		[SND_DEVICE_IN_VOICE_REC_DMIC_STEREO] = "voice-rec-dmic-ef",
		@@ -260,6 +267,7 @@ static int acdb_device_table[SND_DEVICE_MAX] = {
		[SND_DEVICE_OUT_VOICE_TTY_FULL_HEADPHONES] = 17,
		[SND_DEVICE_OUT_VOICE_TTY_VCO_HEADPHONES] = 17,
		[SND_DEVICE_OUT_VOICE_TTY_HCO_HANDSET] = 37,
		[SND_DEVICE_OUT_VOICE_TX] = 45,
		[SND_DEVICE_OUT_AFE_PROXY] = 0,
		[SND_DEVICE_OUT_USB_HEADSET] = 0,
		[SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET] = 14,
		@@ -302,6 +310,7 @@ static int acdb_device_table[SND_DEVICE_MAX] = {
		[SND_DEVICE_IN_VOICE_TTY_FULL_HEADSET_MIC] = 16,
		[SND_DEVICE_IN_VOICE_TTY_VCO_HANDSET_MIC] = 36,
		[SND_DEVICE_IN_VOICE_TTY_HCO_HEADSET_MIC] = 16,
		[SND_DEVICE_IN_VOICE_RX] = 44,
		[SND_DEVICE_IN_VOICE_REC_MIC] = 4,
		[SND_DEVICE_IN_VOICE_REC_MIC_NS] = 107,
		[SND_DEVICE_IN_VOICE_REC_DMIC_STEREO] = 34,
		@@ -662,6 +671,10 @@ void platform_add_backend_name(char *mixer_path, snd_device_t snd_device)
		strlcat(mixer_path, " hdmi", MIXER_PATH_MAX_LENGTH);
		else if (snd_device == SND_DEVICE_OUT_SPEAKER_AND_HDMI)
		strcat(mixer_path, " speaker-and-hdmi");
		else if (snd_device == SND_DEVICE_OUT_VOICE_TX)
		strlcat(mixer_path, " afe-proxy", MIXER_PATH_MAX_LENGTH);
		else if (snd_device == SND_DEVICE_IN_VOICE_RX)
		strlcat(mixer_path, " afe-proxy", MIXER_PATH_MAX_LENGTH);
		else if (snd_device == SND_DEVICE_OUT_AFE_PROXY)
		strlcat(mixer_path, " afe-proxy", MIXER_PATH_MAX_LENGTH);
		else if (snd_device == SND_DEVICE_OUT_USB_HEADSET)
		@@ -1080,7 +1093,9 @@ snd_device_t platform_get_output_snd_device(void *platform, audio_devices_t devi
		snd_device = SND_DEVICE_OUT_ANC_HANDSET;
		else
		snd_device = SND_DEVICE_OUT_VOICE_HANDSET;
		}
		} else if (devices & AUDIO_DEVICE_OUT_TELEPHONY_TX)
		snd_device = SND_DEVICE_OUT_VOICE_TX;

		if (snd_device != SND_DEVICE_NONE) {
		goto exit;
		}
		@@ -1212,7 +1227,8 @@ snd_device_t platform_get_input_snd_device(void *platform, audio_devices_t out_d
		snd_device = SND_DEVICE_IN_VOICE_SPEAKER_MIC;
		set_echo_reference(adev, true);
		}
		}
		} else if (out_device & AUDIO_DEVICE_OUT_TELEPHONY_TX)
		snd_device = SND_DEVICE_IN_VOICE_RX;
		} else if (source == AUDIO_SOURCE_CAMCORDER) {
		if (in_device & AUDIO_DEVICE_IN_BUILTIN_MIC \|\|
		in_device & AUDIO_DEVICE_IN_BACK_MIC) {

hal/msm8974/platform.h

+5 −0

Original line number	Diff line number	Diff line
		@@ -60,6 +60,7 @@ enum {
		SND_DEVICE_OUT_VOICE_TTY_FULL_HEADPHONES,
		SND_DEVICE_OUT_VOICE_TTY_VCO_HEADPHONES,
		SND_DEVICE_OUT_VOICE_TTY_HCO_HANDSET,
		SND_DEVICE_OUT_VOICE_TX,
		SND_DEVICE_OUT_AFE_PROXY,
		SND_DEVICE_OUT_USB_HEADSET,
		SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET,
		@@ -113,6 +114,7 @@ enum {
		SND_DEVICE_IN_VOICE_REC_MIC_NS,
		SND_DEVICE_IN_VOICE_REC_DMIC_STEREO,
		SND_DEVICE_IN_VOICE_REC_DMIC_FLUENCE,
		SND_DEVICE_IN_VOICE_RX,
		SND_DEVICE_IN_USB_HEADSET_MIC,
		SND_DEVICE_IN_CAPTURE_FM,
		SND_DEVICE_IN_AANC_HANDSET_MIC,
		@@ -223,6 +225,9 @@ enum {
		#define VOWLAN_CALL_PCM_DEVICE 36
		#endif

		#define AFE_PROXY_PLAYBACK_PCM_DEVICE 7
		#define AFE_PROXY_RECORD_PCM_DEVICE 8

		#ifdef PLATFORM_MSM8x26
		#define HFP_SCO_RX 28
		#define HFP_ASM_RX_TX 29