Exemplo n.º 1
0
int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw)
{
	int err = 0;

	if (amdtp_streaming_error(&oxfw->rx_stream))
		stop_stream(oxfw);

	if (amdtp_stream_running(&oxfw->rx_stream))
		goto end;

	err = cmp_connection_establish(&oxfw->in_conn,
			amdtp_stream_get_max_payload(&oxfw->rx_stream));
	if (err < 0)
		goto end;

	err = amdtp_stream_start(&oxfw->rx_stream,
				 oxfw->in_conn.resources.channel,
				 oxfw->in_conn.speed);
	if (err < 0)
		stop_stream(oxfw);
end:
	return err;
}
Exemplo n.º 2
0
int snd_efw_stream_start_duplex(struct snd_efw *efw, unsigned int rate)
{
	struct amdtp_stream *master, *slave;
	atomic_t *slave_substreams;
	enum cip_flags sync_mode;
	unsigned int curr_rate;
	int err = 0;

	mutex_lock(&efw->mutex);

	/* Need no substreams */
	if ((atomic_read(&efw->playback_substreams) == 0) &&
	    (atomic_read(&efw->capture_substreams)  == 0))
		goto end;

	err = get_sync_mode(efw, &sync_mode);
	if (err < 0)
		goto end;
	if (sync_mode == CIP_SYNC_TO_DEVICE) {
		master = &efw->tx_stream;
		slave  = &efw->rx_stream;
		slave_substreams  = &efw->playback_substreams;
	} else {
		master = &efw->rx_stream;
		slave  = &efw->tx_stream;
		slave_substreams = &efw->capture_substreams;
	}

	/*
	 * Considering JACK/FFADO streaming:
	 * TODO: This can be removed hwdep functionality becomes popular.
	 */
	err = check_connection_used_by_others(efw, master);
	if (err < 0)
		goto end;

	/* packet queueing error */
	if (amdtp_streaming_error(slave))
		stop_stream(efw, slave);
	if (amdtp_streaming_error(master))
		stop_stream(efw, master);

	/* stop streams if rate is different */
	err = snd_efw_command_get_sampling_rate(efw, &curr_rate);
	if (err < 0)
		goto end;
	if (rate == 0)
		rate = curr_rate;
	if (rate != curr_rate) {
		stop_stream(efw, slave);
		stop_stream(efw, master);
	}

	/* master should be always running */
	if (!amdtp_stream_running(master)) {
		amdtp_stream_set_sync(sync_mode, master, slave);
		efw->master = master;

		err = snd_efw_command_set_sampling_rate(efw, rate);
		if (err < 0)
			goto end;

		err = start_stream(efw, master, rate);
		if (err < 0) {
			dev_err(&efw->unit->device,
				"fail to start AMDTP master stream:%d\n", err);
			goto end;
		}
	}

	/* start slave if needed */
	if (atomic_read(slave_substreams) > 0 && !amdtp_stream_running(slave)) {
		err = start_stream(efw, slave, rate);
		if (err < 0) {
			dev_err(&efw->unit->device,
				"fail to start AMDTP slave stream:%d\n", err);
			stop_stream(efw, master);
		}
	}
end:
	mutex_unlock(&efw->mutex);
	return err;
}
Exemplo n.º 3
0
static int firewave_channels_constraint(struct snd_pcm_hw_params *params,
					struct snd_pcm_hw_rule *rule)
{
	static const struct snd_interval all_channels = { .min = 6, .max = 6 };
	struct snd_interval *rate =
			hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
	struct snd_interval *channels =
			hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);

	/* 32/44.1 kHz work only with all six channels */
	if (snd_interval_max(rate) < 48000)
		return snd_interval_refine(channels, &all_channels);
	return 0;
}

static int firewave_constraints(struct snd_pcm_runtime *runtime)
{
	static unsigned int channels_list[] = { 2, 6 };
	static struct snd_pcm_hw_constraint_list channels_list_constraint = {
		.count = 2,
		.list = channels_list,
	};
	int err;

	runtime->hw.rates = SNDRV_PCM_RATE_32000 |
			    SNDRV_PCM_RATE_44100 |
			    SNDRV_PCM_RATE_48000 |
			    SNDRV_PCM_RATE_96000;
	runtime->hw.channels_max = 6;

	err = snd_pcm_hw_constraint_list(runtime, 0,
					 SNDRV_PCM_HW_PARAM_CHANNELS,
					 &channels_list_constraint);
	if (err < 0)
		return err;
	err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
				  firewave_rate_constraint, NULL,
				  SNDRV_PCM_HW_PARAM_CHANNELS, -1);
	if (err < 0)
		return err;
	err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
				  firewave_channels_constraint, NULL,
				  SNDRV_PCM_HW_PARAM_RATE, -1);
	if (err < 0)
		return err;

	return 0;
}

static int lacie_speakers_constraints(struct snd_pcm_runtime *runtime)
{
	runtime->hw.rates = SNDRV_PCM_RATE_32000 |
			    SNDRV_PCM_RATE_44100 |
			    SNDRV_PCM_RATE_48000 |
			    SNDRV_PCM_RATE_88200 |
			    SNDRV_PCM_RATE_96000;

	return 0;
}

static int fwspk_open(struct snd_pcm_substream *substream)
{
	static const struct snd_pcm_hardware hardware = {
		.info = SNDRV_PCM_INFO_MMAP |
			SNDRV_PCM_INFO_MMAP_VALID |
			SNDRV_PCM_INFO_BATCH |
			SNDRV_PCM_INFO_INTERLEAVED |
			SNDRV_PCM_INFO_BLOCK_TRANSFER,
		.formats = AMDTP_OUT_PCM_FORMAT_BITS,
		.channels_min = 2,
		.channels_max = 2,
		.buffer_bytes_max = 4 * 1024 * 1024,
		.period_bytes_min = 1,
		.period_bytes_max = UINT_MAX,
		.periods_min = 1,
		.periods_max = UINT_MAX,
	};
	struct fwspk *fwspk = substream->private_data;
	struct snd_pcm_runtime *runtime = substream->runtime;
	int err;

	runtime->hw = hardware;

	err = fwspk->device_info->pcm_constraints(runtime);
	if (err < 0)
		return err;
	err = snd_pcm_limit_hw_rates(runtime);
	if (err < 0)
		return err;

	err = amdtp_stream_add_pcm_hw_constraints(&fwspk->stream, runtime);
	if (err < 0)
		return err;

	return 0;
}

static int fwspk_close(struct snd_pcm_substream *substream)
{
	return 0;
}

static void fwspk_stop_stream(struct fwspk *fwspk)
{
	if (amdtp_stream_running(&fwspk->stream)) {
		amdtp_stream_stop(&fwspk->stream);
		cmp_connection_break(&fwspk->connection);
	}
}

static int fwspk_hw_params(struct snd_pcm_substream *substream,
			   struct snd_pcm_hw_params *hw_params)
{
	struct fwspk *fwspk = substream->private_data;
	int err;

	mutex_lock(&fwspk->mutex);
	fwspk_stop_stream(fwspk);
	mutex_unlock(&fwspk->mutex);

	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
					       params_buffer_bytes(hw_params));
	if (err < 0)
		goto error;

	amdtp_stream_set_parameters(&fwspk->stream,
				    params_rate(hw_params),
				    params_channels(hw_params),
				    0);

	amdtp_stream_set_pcm_format(&fwspk->stream,
				    params_format(hw_params));

	err = avc_general_set_sig_fmt(fwspk->unit, params_rate(hw_params),
				      AVC_GENERAL_PLUG_DIR_IN, 0);
	if (err < 0) {
		dev_err(&fwspk->unit->device, "failed to set sample rate\n");
		goto err_buffer;
	}

	return 0;

err_buffer:
	snd_pcm_lib_free_vmalloc_buffer(substream);
error:
	return err;
}

static int fwspk_hw_free(struct snd_pcm_substream *substream)
{
	struct fwspk *fwspk = substream->private_data;

	mutex_lock(&fwspk->mutex);
	fwspk_stop_stream(fwspk);
	mutex_unlock(&fwspk->mutex);

	return snd_pcm_lib_free_vmalloc_buffer(substream);
}

static int fwspk_prepare(struct snd_pcm_substream *substream)
{
	struct fwspk *fwspk = substream->private_data;
	int err;

	mutex_lock(&fwspk->mutex);

	if (amdtp_streaming_error(&fwspk->stream))
		fwspk_stop_stream(fwspk);

	if (!amdtp_stream_running(&fwspk->stream)) {
		err = cmp_connection_establish(&fwspk->connection,
			amdtp_stream_get_max_payload(&fwspk->stream));
		if (err < 0)
			goto err_mutex;

		err = amdtp_stream_start(&fwspk->stream,
					 fwspk->connection.resources.channel,
					 fwspk->connection.speed);
		if (err < 0)
			goto err_connection;
	}

	mutex_unlock(&fwspk->mutex);

	amdtp_stream_pcm_prepare(&fwspk->stream);

	return 0;

err_connection:
	cmp_connection_break(&fwspk->connection);
err_mutex:
	mutex_unlock(&fwspk->mutex);

	return err;
}

static int fwspk_trigger(struct snd_pcm_substream *substream, int cmd)
{
	struct fwspk *fwspk = substream->private_data;
	struct snd_pcm_substream *pcm;

	switch (cmd) {
	case SNDRV_PCM_TRIGGER_START:
		pcm = substream;
		break;
	case SNDRV_PCM_TRIGGER_STOP:
		pcm = NULL;
		break;
	default:
		return -EINVAL;
	}
	amdtp_stream_pcm_trigger(&fwspk->stream, pcm);
	return 0;
}

static snd_pcm_uframes_t fwspk_pointer(struct snd_pcm_substream *substream)
{
	struct fwspk *fwspk = substream->private_data;

	return amdtp_stream_pcm_pointer(&fwspk->stream);
}

static int fwspk_create_pcm(struct fwspk *fwspk)
{
	static struct snd_pcm_ops ops = {
		.open      = fwspk_open,
		.close     = fwspk_close,
		.ioctl     = snd_pcm_lib_ioctl,
		.hw_params = fwspk_hw_params,
		.hw_free   = fwspk_hw_free,
		.prepare   = fwspk_prepare,
		.trigger   = fwspk_trigger,
		.pointer   = fwspk_pointer,
		.page      = snd_pcm_lib_get_vmalloc_page,
		.mmap      = snd_pcm_lib_mmap_vmalloc,
	};
	struct snd_pcm *pcm;
	int err;

	err = snd_pcm_new(fwspk->card, "OXFW970", 0, 1, 0, &pcm);
	if (err < 0)
		return err;
	pcm->private_data = fwspk;
	strcpy(pcm->name, fwspk->device_info->short_name);
	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &ops);
	return 0;
}

enum control_action { CTL_READ, CTL_WRITE };
enum control_attribute {
	CTL_MIN		= 0x02,
	CTL_MAX		= 0x03,
	CTL_CURRENT	= 0x10,
};

static int fwspk_mute_command(struct fwspk *fwspk, bool *value,
			      enum control_action action)
{
	u8 *buf;
	u8 response_ok;
	int err;

	buf = kmalloc(11, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	if (action == CTL_READ) {
		buf[0] = 0x01;		/* AV/C, STATUS */
		response_ok = 0x0c;	/*       STABLE */
	} else {
		buf[0] = 0x00;		/* AV/C, CONTROL */
		response_ok = 0x09;	/*       ACCEPTED */
	}
	buf[1] = 0x08;			/* audio unit 0 */
	buf[2] = 0xb8;			/* FUNCTION BLOCK */
	buf[3] = 0x81;			/* function block type: feature */
	buf[4] = fwspk->device_info->mute_fb_id; /* function block ID */
	buf[5] = 0x10;			/* control attribute: current */
	buf[6] = 0x02;			/* selector length */
	buf[7] = 0x00;			/* audio channel number */
	buf[8] = 0x01;			/* control selector: mute */
	buf[9] = 0x01;			/* control data length */
	if (action == CTL_READ)
		buf[10] = 0xff;
	else
		buf[10] = *value ? 0x70 : 0x60;

	err = fcp_avc_transaction(fwspk->unit, buf, 11, buf, 11, 0x3fe);
	if (err < 0)
		goto error;
	if (err < 11) {
		dev_err(&fwspk->unit->device, "short FCP response\n");
		err = -EIO;
		goto error;
	}
	if (buf[0] != response_ok) {
		dev_err(&fwspk->unit->device, "mute command failed\n");
		err = -EIO;
		goto error;
	}
	if (action == CTL_READ)
		*value = buf[10] == 0x70;

	err = 0;

error:
	kfree(buf);

	return err;
}

static int fwspk_volume_command(struct fwspk *fwspk, s16 *value,
				unsigned int channel,
				enum control_attribute attribute,
				enum control_action action)
{
	u8 *buf;
	u8 response_ok;
	int err;

	buf = kmalloc(12, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	if (action == CTL_READ) {
		buf[0] = 0x01;		/* AV/C, STATUS */
		response_ok = 0x0c;	/*       STABLE */
	} else {
		buf[0] = 0x00;		/* AV/C, CONTROL */
		response_ok = 0x09;	/*       ACCEPTED */
	}
	buf[1] = 0x08;			/* audio unit 0 */
	buf[2] = 0xb8;			/* FUNCTION BLOCK */
	buf[3] = 0x81;			/* function block type: feature */
	buf[4] = fwspk->device_info->volume_fb_id; /* function block ID */
	buf[5] = attribute;		/* control attribute */
	buf[6] = 0x02;			/* selector length */
	buf[7] = channel;		/* audio channel number */
	buf[8] = 0x02;			/* control selector: volume */
	buf[9] = 0x02;			/* control data length */
	if (action == CTL_READ) {
		buf[10] = 0xff;
		buf[11] = 0xff;
	} else {
		buf[10] = *value >> 8;
		buf[11] = *value;
	}

	err = fcp_avc_transaction(fwspk->unit, buf, 12, buf, 12, 0x3fe);
	if (err < 0)
		goto error;
	if (err < 12) {
		dev_err(&fwspk->unit->device, "short FCP response\n");
		err = -EIO;
		goto error;
	}
	if (buf[0] != response_ok) {
		dev_err(&fwspk->unit->device, "volume command failed\n");
		err = -EIO;
		goto error;
	}
	if (action == CTL_READ)
		*value = (buf[10] << 8) | buf[11];

	err = 0;

error:
	kfree(buf);

	return err;
}
Exemplo n.º 4
0
int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw,
				  struct amdtp_stream *stream,
				  unsigned int rate, unsigned int pcm_channels)
{
	struct amdtp_stream *opposite;
	struct snd_oxfw_stream_formation formation;
	enum avc_general_plug_dir dir;
	unsigned int substreams, opposite_substreams;
	int err = 0;

	if (stream == &oxfw->tx_stream) {
		substreams = oxfw->capture_substreams;
		opposite = &oxfw->rx_stream;
		opposite_substreams = oxfw->playback_substreams;
		dir = AVC_GENERAL_PLUG_DIR_OUT;
	} else {
		substreams = oxfw->playback_substreams;
		opposite_substreams = oxfw->capture_substreams;

		if (oxfw->has_output)
			opposite = &oxfw->rx_stream;
		else
			opposite = NULL;

		dir = AVC_GENERAL_PLUG_DIR_IN;
	}

	if (substreams == 0)
		goto end;

	/*
	 * Considering JACK/FFADO streaming:
	 * TODO: This can be removed hwdep functionality becomes popular.
	 */
	err = check_connection_used_by_others(oxfw, stream);
	if (err < 0)
		goto end;

	/* packet queueing error */
	if (amdtp_streaming_error(stream))
		stop_stream(oxfw, stream);

	err = snd_oxfw_stream_get_current_formation(oxfw, dir, &formation);
	if (err < 0)
		goto end;
	if (rate == 0)
		rate = formation.rate;
	if (pcm_channels == 0)
		pcm_channels = formation.pcm;

	if ((formation.rate != rate) || (formation.pcm != pcm_channels)) {
		if (opposite != NULL) {
			err = check_connection_used_by_others(oxfw, opposite);
			if (err < 0)
				goto end;
			stop_stream(oxfw, opposite);
		}
		stop_stream(oxfw, stream);

		err = set_stream_format(oxfw, stream, rate, pcm_channels);
		if (err < 0) {
			dev_err(&oxfw->unit->device,
				"fail to set stream format: %d\n", err);
			goto end;
		}

		/* Start opposite stream if needed. */
		if (opposite && !amdtp_stream_running(opposite) &&
		    (opposite_substreams > 0)) {
			err = start_stream(oxfw, opposite, rate, 0);
			if (err < 0) {
				dev_err(&oxfw->unit->device,
					"fail to restart stream: %d\n", err);
				goto end;
			}
		}
	}

	/* Start requested stream. */
	if (!amdtp_stream_running(stream)) {
		err = start_stream(oxfw, stream, rate, pcm_channels);
		if (err < 0)
			dev_err(&oxfw->unit->device,
				"fail to start stream: %d\n", err);
	}
end:
	return err;
}
Exemplo n.º 5
0
int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, unsigned int rate)
{
	const struct snd_bebob_rate_spec *rate_spec = bebob->spec->rate;
	unsigned int curr_rate;
	int err = 0;

	/* Need no substreams */
	if (bebob->substreams_counter == 0)
		goto end;

	/*
	 * Considering JACK/FFADO streaming:
	 * TODO: This can be removed hwdep functionality becomes popular.
	 */
	err = check_connection_used_by_others(bebob, &bebob->rx_stream);
	if (err < 0)
		goto end;

	/*
	 * packet queueing error or detecting discontinuity
	 *
	 * At bus reset, connections should not be broken here. So streams need
	 * to be re-started. This is a reason to use SKIP_INIT_DBC_CHECK flag.
	 */
	if (amdtp_streaming_error(&bebob->rx_stream))
		amdtp_stream_stop(&bebob->rx_stream);
	if (amdtp_streaming_error(&bebob->tx_stream))
		amdtp_stream_stop(&bebob->tx_stream);
	if (!amdtp_stream_running(&bebob->rx_stream) &&
	    !amdtp_stream_running(&bebob->tx_stream))
		break_both_connections(bebob);

	/* stop streams if rate is different */
	err = rate_spec->get(bebob, &curr_rate);
	if (err < 0) {
		dev_err(&bebob->unit->device,
			"fail to get sampling rate: %d\n", err);
		goto end;
	}
	if (rate == 0)
		rate = curr_rate;
	if (rate != curr_rate) {
		amdtp_stream_stop(&bebob->rx_stream);
		amdtp_stream_stop(&bebob->tx_stream);
		break_both_connections(bebob);
	}

	/* master should be always running */
	if (!amdtp_stream_running(&bebob->rx_stream)) {
		/*
		 * NOTE:
		 * If establishing connections at first, Yamaha GO46
		 * (and maybe Terratec X24) don't generate sound.
		 *
		 * For firmware customized by M-Audio, refer to next NOTE.
		 */
		if (bebob->maudio_special_quirk == NULL) {
			err = rate_spec->set(bebob, rate);
			if (err < 0) {
				dev_err(&bebob->unit->device,
					"fail to set sampling rate: %d\n",
					err);
				goto end;
			}
		}

		err = make_both_connections(bebob, rate);
		if (err < 0)
			goto end;

		err = start_stream(bebob, &bebob->rx_stream, rate);
		if (err < 0) {
			dev_err(&bebob->unit->device,
				"fail to run AMDTP master stream:%d\n", err);
			break_both_connections(bebob);
			goto end;
		}

		/*
		 * NOTE:
		 * The firmware customized by M-Audio uses these commands to
		 * start transmitting stream. This is not usual way.
		 */
		if (bebob->maudio_special_quirk != NULL) {
			err = rate_spec->set(bebob, rate);
			if (err < 0) {
				dev_err(&bebob->unit->device,
					"fail to ensure sampling rate: %d\n",
					err);
				amdtp_stream_stop(&bebob->rx_stream);
				break_both_connections(bebob);
				goto end;
			}
		}

		/* wait first callback */
		if (!amdtp_stream_wait_callback(&bebob->rx_stream,
						CALLBACK_TIMEOUT)) {
			amdtp_stream_stop(&bebob->rx_stream);
			break_both_connections(bebob);
			err = -ETIMEDOUT;
			goto end;
		}
	}

	/* start slave if needed */
	if (!amdtp_stream_running(&bebob->tx_stream)) {
		err = start_stream(bebob, &bebob->tx_stream, rate);
		if (err < 0) {
			dev_err(&bebob->unit->device,
				"fail to run AMDTP slave stream:%d\n", err);
			amdtp_stream_stop(&bebob->rx_stream);
			break_both_connections(bebob);
			goto end;
		}

		/* wait first callback */
		if (!amdtp_stream_wait_callback(&bebob->tx_stream,
						CALLBACK_TIMEOUT)) {
			amdtp_stream_stop(&bebob->tx_stream);
			amdtp_stream_stop(&bebob->rx_stream);
			break_both_connections(bebob);
			err = -ETIMEDOUT;
		}
	}
end:
	return err;
}