static int auda2dp_in_release(struct inode *inode, struct file *file)
{
	struct audio_a2dp_in *audio = file->private_data;

	mutex_lock(&audio->lock);
	/* with draw frequency for session
	   incase not stopped the driver */
	msm_snddev_withdraw_freq(audio->enc_id, SNDDEV_CAP_TX,
					AUDDEV_CLNT_ENC);
	auddev_unregister_evt_listner(AUDDEV_CLNT_ENC, audio->enc_id);
	/*reset the sampling frequency information at audpreproc layer*/
	audio->session_info.sampling_freq = 0;
	audpreproc_update_audrec_info(&audio->session_info);
	auda2dp_in_disable(audio);
	auda2dp_in_flush(audio);
	msm_adsp_put(audio->audrec);
	audpreproc_aenc_free(audio->enc_id);
	audio->audrec = NULL;
	audio->opened = 0;
	if (audio->data) {
		msm_subsystem_unmap_buffer(audio->msm_map);
		free_contiguous_memory_by_paddr(audio->phys);
		audio->data = NULL;
	}
	mutex_unlock(&audio->lock);
	return 0;
}
Exemple #2
0
static int auda2dp_in_release(struct inode *inode, struct file *file)
{
	struct audio_a2dp_in *audio = file->private_data;

	mutex_lock(&audio->lock);
	/* with draw frequency for session
	   incase not stopped the driver */
	msm_snddev_withdraw_freq(audio->enc_id, SNDDEV_CAP_TX,
					AUDDEV_CLNT_ENC);
	auddev_unregister_evt_listner(AUDDEV_CLNT_ENC, audio->enc_id);
	auda2dp_in_disable(audio);
	auda2dp_in_flush(audio);
	msm_adsp_put(audio->audrec);
	audpreproc_aenc_free(audio->enc_id);
	audio->audrec = NULL;
	audio->opened = 0;
	mutex_unlock(&audio->lock);
	return 0;
}
static int auda2dp_in_open(struct inode *inode, struct file *file)
{
	struct audio_a2dp_in *audio = &the_audio_a2dp_in;
	int rc;
	int encid;

	mutex_lock(&audio->lock);
	if (audio->opened) {
		rc = -EBUSY;
		goto done;
	}

	audio->phys = allocate_contiguous_ebi_nomap(DMASZ, SZ_4K);
	if (audio->phys) {
		audio->msm_map = msm_subsystem_map_buffer(
					audio->phys, DMASZ,
					MSM_SUBSYSTEM_MAP_KADDR, NULL, 0);
		if (IS_ERR(audio->msm_map)) {
			MM_ERR("could not map the phys address to kernel"
							"space\n");
			rc = -ENOMEM;
			free_contiguous_memory_by_paddr(audio->phys);
			goto done;
		}
		audio->data = (u8 *)audio->msm_map->vaddr;
	} else {
		MM_ERR("could not allocate DMA buffers\n");
		rc = -ENOMEM;
		goto done;
	}
	MM_DBG("Memory addr = 0x%8x  phy addr = 0x%8x\n",\
		(int) audio->data, (int) audio->phys);

	if ((file->f_mode & FMODE_WRITE) &&
				(file->f_mode & FMODE_READ)) {
		rc = -EACCES;
		MM_ERR("Non tunnel encoding is not supported\n");
		goto done;
	} else if (!(file->f_mode & FMODE_WRITE) &&
					(file->f_mode & FMODE_READ)) {
		audio->mode = MSM_AUD_ENC_MODE_TUNNEL;
		MM_DBG("Opened for Tunnel mode encoding\n");
	} else {
		rc = -EACCES;
		goto done;
	}
	/* Settings will be re-config at AUDIO_SET_CONFIG/SBC_ENC_CONFIG,
	 * but at least we need to have initial config
	 */
	audio->channel_mode = AUDREC_CMD_MODE_MONO;
	audio->buffer_size = FRAME_SIZE_SBC;
	audio->samp_rate = 48000;
	audio->enc_type = ENC_TYPE_SBC | audio->mode;
	audio->cfg.bit_allocation = AUDIO_SBC_BA_SNR;
	audio->cfg.mode = AUDIO_SBC_MODE_JSTEREO;
	audio->cfg.number_of_subbands = AUDIO_SBC_BANDS_8;
	audio->cfg.number_of_blocks = AUDIO_SBC_BLOCKS_16;
	audio->cfg.bit_rate = 320000; /* max 512kbps(mono), 320kbs(others) */

	encid = audpreproc_aenc_alloc(audio->enc_type, &audio->module_name,
			&audio->queue_ids);
	if (encid < 0) {
		MM_ERR("No free encoder available\n");
		rc = -ENODEV;
		goto done;
	}
	audio->enc_id = encid;

	rc = msm_adsp_get(audio->module_name, &audio->audrec,
			   &audrec_adsp_ops, audio);

	if (rc) {
		audpreproc_aenc_free(audio->enc_id);
		goto done;
	}

	audio->stopped = 0;
	audio->source = 0;
	audio->abort = 0;
	auda2dp_in_flush(audio);
	audio->device_events = AUDDEV_EVT_DEV_RDY | AUDDEV_EVT_DEV_RLS |
				AUDDEV_EVT_FREQ_CHG;

	rc = auddev_register_evt_listner(audio->device_events,
					AUDDEV_CLNT_ENC, audio->enc_id,
					a2dp_in_listener, (void *) audio);
	if (rc) {
		MM_ERR("failed to register device event listener\n");
		goto evt_error;
	}
	audio->build_id = socinfo_get_build_id();
	MM_DBG("Modem build id = %s\n", audio->build_id);
	file->private_data = audio;
	audio->opened = 1;
	rc = 0;
done:
	mutex_unlock(&audio->lock);
	return rc;
evt_error:
	msm_adsp_put(audio->audrec);
	audpreproc_aenc_free(audio->enc_id);
	mutex_unlock(&audio->lock);
	return rc;
}
/* ------------------- device --------------------- */
static long auda2dp_in_ioctl(struct file *file,
				unsigned int cmd, unsigned long arg)
{
	struct audio_a2dp_in *audio = file->private_data;
	int rc = 0;

	if (cmd == AUDIO_GET_STATS) {
		struct msm_audio_stats stats;
		stats.byte_count = atomic_read(&audio->in_bytes);
		stats.sample_count = atomic_read(&audio->in_samples);
		if (copy_to_user((void *) arg, &stats, sizeof(stats)))
			return -EFAULT;
		return rc;
	}

	mutex_lock(&audio->lock);
	switch (cmd) {
	case AUDIO_START: {
		uint32_t freq;
		/* Poll at 48KHz always */
		freq = 48000;
		MM_DBG("AUDIO_START\n");
		rc = msm_snddev_request_freq(&freq, audio->enc_id,
					SNDDEV_CAP_TX, AUDDEV_CLNT_ENC);
		MM_DBG("sample rate configured %d sample rate requested %d\n",
				freq, audio->samp_rate);
		if (rc < 0) {
			MM_DBG("sample rate can not be set, return code %d\n",\
							rc);
			msm_snddev_withdraw_freq(audio->enc_id,
						SNDDEV_CAP_TX, AUDDEV_CLNT_ENC);
			MM_DBG("msm_snddev_withdraw_freq\n");
			break;
		}
		/*update aurec session info in audpreproc layer*/
		audio->session_info.session_id = audio->enc_id;
		audio->session_info.sampling_freq = audio->samp_rate;
		audpreproc_update_audrec_info(&audio->session_info);
		rc = auda2dp_in_enable(audio);
		if (!rc) {
			rc =
			wait_event_interruptible_timeout(audio->wait_enable,
				audio->running != 0, 1*HZ);
			MM_DBG("state %d rc = %d\n", audio->running, rc);

			if (audio->running == 0) {
				rc = -ENODEV;
				msm_snddev_withdraw_freq(audio->enc_id,
					SNDDEV_CAP_TX, AUDDEV_CLNT_ENC);
				MM_DBG("msm_snddev_withdraw_freq\n");
			} else
				rc = 0;
		}
		audio->stopped = 0;
		break;
	}
	case AUDIO_STOP: {
		/*reset the sampling frequency information at audpreproc layer*/
		audio->session_info.sampling_freq = 0;
		audpreproc_update_audrec_info(&audio->session_info);
		rc = auda2dp_in_disable(audio);
		rc = msm_snddev_withdraw_freq(audio->enc_id,
					SNDDEV_CAP_TX, AUDDEV_CLNT_ENC);
		MM_DBG("msm_snddev_withdraw_freq\n");
		audio->stopped = 1;
		audio->abort = 0;
		break;
	}
	case AUDIO_FLUSH: {
		if (audio->stopped) {
			/* Make sure we're stopped and we wake any threads
			 * that might be blocked holding the read_lock.
			 * While audio->stopped read threads will always
			 * exit immediately.
			 */
			wake_up(&audio->wait);
			mutex_lock(&audio->read_lock);
			auda2dp_in_flush(audio);
			mutex_unlock(&audio->read_lock);
		}
		break;
	}
	case AUDIO_SET_STREAM_CONFIG: {
		struct msm_audio_stream_config cfg;
		if (copy_from_user(&cfg, (void *) arg, sizeof(cfg))) {
			rc = -EFAULT;
			break;
		}
		/* Allow only single frame */
		if ((audio->enc_type == ENC_TYPE_SBC) &&
				(cfg.buffer_size != FRAME_SIZE_SBC))
			rc = -EINVAL;
		else
			audio->buffer_size = cfg.buffer_size;
		break;
	}
	case AUDIO_GET_STREAM_CONFIG: {
		struct msm_audio_stream_config cfg;
		memset(&cfg, 0, sizeof(cfg));
		if (audio->enc_type == ENC_TYPE_SBC)
			cfg.buffer_size = FRAME_SIZE_SBC;
		else
			cfg.buffer_size = MONO_DATA_SIZE;
		cfg.buffer_count = FRAME_NUM;
		if (copy_to_user((void *) arg, &cfg, sizeof(cfg)))
			rc = -EFAULT;
		break;
	}
	case AUDIO_SET_SBC_ENC_CONFIG: {
		if (copy_from_user(&audio->cfg, (void *) arg,
						sizeof(audio->cfg))) {
			rc = -EFAULT;
			break;
		}
		audio->samp_rate = audio->cfg.sample_rate;
		audio->channel_mode = audio->cfg.channels;
		audio->enc_type = ENC_TYPE_SBC;
		break;
	}
	case AUDIO_SET_CONFIG: {
		struct msm_audio_config cfg;
		if (copy_from_user(&cfg, (void *) arg, sizeof(cfg))) {
			rc = -EFAULT;
			break;
		}
		if (cfg.channel_count == 1) {
			cfg.channel_count = AUDREC_CMD_MODE_MONO;
			audio->buffer_size = MONO_DATA_SIZE;
		} else if (cfg.channel_count == 2) {
			cfg.channel_count = AUDREC_CMD_MODE_STEREO;
			audio->buffer_size = STEREO_DATA_SIZE;
		} else {
			rc = -EINVAL;
			break;
		}
		audio->samp_rate = cfg.sample_rate;
		audio->channel_mode = cfg.channel_count;
		audio->enc_type = ENC_TYPE_WAV;
		break;
	}
	case AUDIO_GET_SBC_ENC_CONFIG: {
		struct msm_audio_sbc_enc_config cfg;
		memset(&cfg, 0, sizeof(cfg));
		cfg.bit_allocation = audio->cfg.bit_allocation;
		cfg.mode =  audio->cfg.mode;
		cfg.number_of_subbands = audio->cfg.number_of_subbands;
		cfg.number_of_blocks = audio->cfg.number_of_blocks;
		cfg.sample_rate = audio->samp_rate;
		cfg.channels = audio->channel_mode;
		cfg.bit_rate = audio->cfg.bit_rate;
		if (copy_to_user((void *) arg, &cfg, sizeof(cfg)))
			rc = -EFAULT;
		break;
	}
	case AUDIO_GET_CONFIG: {
		struct msm_audio_config cfg;
		memset(&cfg, 0, sizeof(cfg));
		cfg.buffer_count = FRAME_NUM;
		cfg.sample_rate = audio->samp_rate;
		if (audio->channel_mode == AUDREC_CMD_MODE_MONO) {
			cfg.channel_count = 1;
			cfg.buffer_size = MONO_DATA_SIZE;
		} else {
			cfg.channel_count = 2;
			cfg.buffer_size = STEREO_DATA_SIZE;
		}
		cfg.type = ENC_TYPE_WAV;
		if (copy_to_user((void *) arg, &cfg, sizeof(cfg)))
			rc = -EFAULT;
		break;
	}
	case AUDIO_GET_SESSION_ID: {
		if (copy_to_user((void *) arg, &audio->enc_id,
			sizeof(unsigned short))) {
			rc = -EFAULT;
		}
		break;
	}
	default:
		rc = -EINVAL;
	}
	mutex_unlock(&audio->lock);
	return rc;
}
Exemple #5
0
static int auda2dp_in_open(struct inode *inode, struct file *file)
{
	struct audio_a2dp_in *audio = &the_audio_a2dp_in;
	int rc;
	int encid;

	mutex_lock(&audio->lock);
	if (audio->opened) {
		rc = -EBUSY;
		goto done;
	}
	if ((file->f_mode & FMODE_WRITE) &&
				(file->f_mode & FMODE_READ)) {
		rc = -EACCES;
		MM_ERR("Non tunnel encoding is not supported\n");
		goto done;
	} else if (!(file->f_mode & FMODE_WRITE) &&
					(file->f_mode & FMODE_READ)) {
		audio->mode = MSM_AUD_ENC_MODE_TUNNEL;
		MM_DBG("Opened for Tunnel mode encoding\n");
	} else {
		rc = -EACCES;
		goto done;
	}
	/* Settings will be re-config at AUDIO_SET_CONFIG/SBC_ENC_CONFIG,
	 * but at least we need to have initial config
	 */
	audio->channel_mode = AUDREC_CMD_MODE_MONO;
	audio->buffer_size = FRAME_SIZE_SBC;
	audio->samp_rate = 48000;
	audio->enc_type = ENC_TYPE_SBC | audio->mode;
	audio->cfg.bit_allocation = AUDIO_SBC_BA_SNR;
	audio->cfg.mode = AUDIO_SBC_MODE_JSTEREO;
	audio->cfg.number_of_subbands = AUDIO_SBC_BANDS_8;
	audio->cfg.number_of_blocks = AUDIO_SBC_BLOCKS_16;
	audio->cfg.bit_rate = 320000; /* max 512kbps(mono), 320kbs(others) */

	encid = audpreproc_aenc_alloc(audio->enc_type, &audio->module_name,
			&audio->queue_ids);
	if (encid < 0) {
		MM_ERR("No free encoder available\n");
		rc = -ENODEV;
		goto done;
	}
	audio->enc_id = encid;

	rc = msm_adsp_get(audio->module_name, &audio->audrec,
			   &audrec_adsp_ops, audio);

	if (rc) {
		audpreproc_aenc_free(audio->enc_id);
		goto done;
	}

	audio->stopped = 0;
	audio->source = 0;
	audio->abort = 0;
	auda2dp_in_flush(audio);
	audio->device_events = AUDDEV_EVT_DEV_RDY | AUDDEV_EVT_DEV_RLS |
				AUDDEV_EVT_FREQ_CHG;

	rc = auddev_register_evt_listner(audio->device_events,
					AUDDEV_CLNT_ENC, audio->enc_id,
					a2dp_in_listener, (void *) audio);
	if (rc) {
		MM_ERR("failed to register device event listener\n");
		goto evt_error;
	}
	file->private_data = audio;
	audio->opened = 1;
	rc = 0;
done:
	mutex_unlock(&audio->lock);
	return rc;
evt_error:
	msm_adsp_put(audio->audrec);
	audpreproc_aenc_free(audio->enc_id);
	mutex_unlock(&audio->lock);
	return rc;
}