Exemple #1
0
static void stop_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream)
{
	amdtp_stream_pcm_abort(stream);
	amdtp_stream_stop(stream);

	if (stream == &oxfw->tx_stream)
		cmp_connection_break(&oxfw->out_conn);
	else
		cmp_connection_break(&oxfw->in_conn);
}
Exemple #2
0
static void
break_both_connections(struct snd_bebob *bebob)
{
	cmp_connection_break(&bebob->in_conn);
	cmp_connection_break(&bebob->out_conn);

	bebob->connected = false;

	/* These models seems to be in transition state for a longer time. */
	if (bebob->maudio_special_quirk != NULL)
		msleep(200);
}
void snd_bebob_stream_stop(struct snd_bebob *bebob, struct amdtp_stream *stream)
{
	if (!!IS_ERR(stream->context))
		goto end;

	amdtp_stream_stop(stream);

	if (stream == &bebob->tx_stream)
		cmp_connection_break(&bebob->out_conn);
	else
		cmp_connection_break(&bebob->in_conn);
end:
	return;
}
int snd_bebob_stream_start(struct snd_bebob *bebob, struct amdtp_stream *stream,
			   unsigned int sampling_rate)
{
	struct snd_bebob_stream_formation *formations;
	struct cmp_connection *conn;
	unsigned int index, pcm_channels, midi_channels;
	int err = 0;

	/* already running */
	if (!IS_ERR(stream->context))
		goto end;

	if (stream == &bebob->tx_stream) {
		formations = bebob->tx_stream_formations;
		conn= &bebob->out_conn;
	} else {
		formations = bebob->rx_stream_formations;
		conn= &bebob->in_conn;
	}

	index = snd_bebob_get_formation_index(sampling_rate);
	pcm_channels = formations[index].pcm;
	midi_channels = formations[index].midi;

	amdtp_stream_set_params(stream, sampling_rate,
				pcm_channels, midi_channels);

	err = mapping_channels(bebob, stream);
	if (err < 0)
		goto end;

	/*  establish connection via CMP */
	err = cmp_connection_establish(conn,
				amdtp_stream_get_max_payload(stream));
	if (err < 0)
		goto end;

	/* start amdtp stream */
	err = amdtp_stream_start(stream,
				 conn->resources.channel,
				 conn->speed);
	if (err < 0)
		cmp_connection_break(conn);

end:
	return err;
}
Exemple #5
0
static int
make_both_connections(struct snd_bebob *bebob, unsigned int rate)
{
	int index, pcm_channels, midi_channels, err = 0;

	if (bebob->connected)
		goto end;

	/* confirm params for both streams */
	err = get_formation_index(rate, &index);
	if (err < 0)
		goto end;
	pcm_channels = bebob->tx_stream_formations[index].pcm;
	midi_channels = bebob->tx_stream_formations[index].midi;
	err = amdtp_am824_set_parameters(&bebob->tx_stream, rate,
					 pcm_channels, midi_channels * 8,
					 false);
	if (err < 0)
		goto end;

	pcm_channels = bebob->rx_stream_formations[index].pcm;
	midi_channels = bebob->rx_stream_formations[index].midi;
	err = amdtp_am824_set_parameters(&bebob->rx_stream, rate,
					 pcm_channels, midi_channels * 8,
					 false);
	if (err < 0)
		goto end;

	/* establish connections for both streams */
	err = cmp_connection_establish(&bebob->out_conn,
			amdtp_stream_get_max_payload(&bebob->tx_stream));
	if (err < 0)
		goto end;
	err = cmp_connection_establish(&bebob->in_conn,
			amdtp_stream_get_max_payload(&bebob->rx_stream));
	if (err < 0) {
		cmp_connection_break(&bebob->out_conn);
		goto end;
	}

	bebob->connected = true;
end:
	return err;
}
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 = snd_pcm_hw_constraint_minmax(runtime,
					   SNDRV_PCM_HW_PARAM_PERIOD_TIME,
					   5000, UINT_MAX);
	if (err < 0)
		return err;

	err = snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
	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 (fwspk->stream_running) {
		amdtp_out_stream_stop(&fwspk->stream);
		cmp_connection_break(&fwspk->connection);
		fwspk->stream_running = false;
	}
}

static int fwspk_set_rate(struct fwspk *fwspk, unsigned int sfc)
{
	u8 *buf;
	int err;

	buf = kmalloc(8, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	buf[0] = 0x00;		/* AV/C, CONTROL */
	buf[1] = 0xff;		/* unit */
	buf[2] = 0x19;		/* INPUT PLUG SIGNAL FORMAT */
	buf[3] = 0x00;		/* plug 0 */
	buf[4] = 0x90;		/* format: audio */
	buf[5] = 0x00 | sfc;	/* AM824, frequency */
	buf[6] = 0xff;		/* SYT (not used) */
	buf[7] = 0xff;

	err = fcp_avc_transaction(fwspk->unit, buf, 8, buf, 8,
				  BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5));
	if (err < 0)
		goto error;
	if (err < 6 || buf[0] != 0x09 /* ACCEPTED */) {
		dev_err(&fwspk->unit->device, "failed to set sample rate\n");
		err = -EIO;
		goto error;
	}

	err = 0;

error:
	kfree(buf);

	return err;
}

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_out_stream_set_rate(&fwspk->stream, params_rate(hw_params));
	amdtp_out_stream_set_pcm(&fwspk->stream, params_channels(hw_params));

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

	err = fwspk_set_rate(fwspk, fwspk->stream.sfc);
	if (err < 0)
		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_out_streaming_error(&fwspk->stream))
		fwspk_stop_stream(fwspk);

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

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

		fwspk->stream_running = true;
	}

	mutex_unlock(&fwspk->mutex);

	amdtp_out_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_out_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_out_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);
	fwspk->pcm = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
	fwspk->pcm->ops = &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 void stop_stream(struct snd_oxfw *oxfw)
{
	amdtp_stream_pcm_abort(&oxfw->rx_stream);
	amdtp_stream_stop(&oxfw->rx_stream);
	cmp_connection_break(&oxfw->in_conn);
}
Exemple #8
0
static int start_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream,
			unsigned int rate, unsigned int pcm_channels)
{
	u8 **formats;
	struct cmp_connection *conn;
	struct snd_oxfw_stream_formation formation;
	unsigned int i, midi_ports;
	int err;

	if (stream == &oxfw->rx_stream) {
		formats = oxfw->rx_stream_formats;
		conn = &oxfw->in_conn;
	} else {
		formats = oxfw->tx_stream_formats;
		conn = &oxfw->out_conn;
	}

	/* Get stream format */
	for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {
		if (formats[i] == NULL)
			break;

		err = snd_oxfw_stream_parse_format(formats[i], &formation);
		if (err < 0)
			goto end;
		if (rate != formation.rate)
			continue;
		if (pcm_channels == 0 ||  pcm_channels == formation.pcm)
			break;
	}
	if (i == SND_OXFW_STREAM_FORMAT_ENTRIES) {
		err = -EINVAL;
		goto end;
	}

	pcm_channels = formation.pcm;
	midi_ports = formation.midi * 8;

	/* The stream should have one pcm channels at least */
	if (pcm_channels == 0) {
		err = -EINVAL;
		goto end;
	}
	err = amdtp_am824_set_parameters(stream, rate, pcm_channels, midi_ports,
					 false);
	if (err < 0)
		goto end;

	err = cmp_connection_establish(conn,
				       amdtp_stream_get_max_payload(stream));
	if (err < 0)
		goto end;

	err = amdtp_stream_start(stream,
				 conn->resources.channel,
				 conn->speed);
	if (err < 0) {
		cmp_connection_break(conn);
		goto end;
	}

	/* Wait first packet */
	if (!amdtp_stream_wait_callback(stream, CALLBACK_TIMEOUT)) {
		stop_stream(oxfw, stream);
		err = -ETIMEDOUT;
	}
end:
	return err;
}