vx_mixer.c

linux-2.6.15.6

static int vx_audio_src_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
	down(&chip->mixer_mutex);
	if (chip->audio_source_target != ucontrol->value.enumerated.item[0]) {
		chip->audio_source_target = ucontrol->value.enumerated.item[0];
		vx_sync_audio_source(chip);
		up(&chip->mixer_mutex);
		return 1;
	}
	up(&chip->mixer_mutex);
	return 0;
}

static snd_kcontrol_new_t vx_control_audio_src = {
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =		"Capture Source",
	.info =		vx_audio_src_info,
	.get =		vx_audio_src_get,
	.put =		vx_audio_src_put,
};

/*
 * clock mode selection
 */
static int vx_clock_mode_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
	static char *texts[3] = {
		"Auto", "Internal", "External"
	};

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 3;
	if (uinfo->value.enumerated.item > 2)
		uinfo->value.enumerated.item = 2;
	strcpy(uinfo->value.enumerated.name,
	       texts[uinfo->value.enumerated.item]);
	return 0;
}

static int vx_clock_mode_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
	ucontrol->value.enumerated.item[0] = chip->clock_mode;
	return 0;
}

static int vx_clock_mode_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
	down(&chip->mixer_mutex);
	if (chip->clock_mode != ucontrol->value.enumerated.item[0]) {
		chip->clock_mode = ucontrol->value.enumerated.item[0];
		vx_set_clock(chip, chip->freq);
		up(&chip->mixer_mutex);
		return 1;
	}
	up(&chip->mixer_mutex);
	return 0;
}

static snd_kcontrol_new_t vx_control_clock_mode = {
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =		"Clock Mode",
	.info =		vx_clock_mode_info,
	.get =		vx_clock_mode_get,
	.put =		vx_clock_mode_put,
};

/*
 * Audio Gain
 */
static int vx_audio_gain_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = CVAL_MAX;
	return 0;
}

static int vx_audio_gain_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
	int audio = kcontrol->private_value & 0xff;
	int capture = (kcontrol->private_value >> 8) & 1;

	down(&chip->mixer_mutex);
	ucontrol->value.integer.value[0] = chip->audio_gain[capture][audio];
	ucontrol->value.integer.value[1] = chip->audio_gain[capture][audio+1];
	up(&chip->mixer_mutex);
	return 0;
}

static int vx_audio_gain_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
	int audio = kcontrol->private_value & 0xff;
	int capture = (kcontrol->private_value >> 8) & 1;

	down(&chip->mixer_mutex);
	if (ucontrol->value.integer.value[0] != chip->audio_gain[capture][audio] ||
	    ucontrol->value.integer.value[1] != chip->audio_gain[capture][audio+1]) {
		vx_set_audio_gain(chip, audio, capture, ucontrol->value.integer.value[0]);
		vx_set_audio_gain(chip, audio+1, capture, ucontrol->value.integer.value[1]);
		up(&chip->mixer_mutex);
		return 1;
	}
	up(&chip->mixer_mutex);
	return 0;
}

static int vx_audio_monitor_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
	int audio = kcontrol->private_value & 0xff;

	down(&chip->mixer_mutex);
	ucontrol->value.integer.value[0] = chip->audio_monitor[audio];
	ucontrol->value.integer.value[1] = chip->audio_monitor[audio+1];
	up(&chip->mixer_mutex);
	return 0;
}

static int vx_audio_monitor_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
	int audio = kcontrol->private_value & 0xff;

	down(&chip->mixer_mutex);
	if (ucontrol->value.integer.value[0] != chip->audio_monitor[audio] ||
	    ucontrol->value.integer.value[1] != chip->audio_monitor[audio+1]) {
		vx_set_monitor_level(chip, audio, ucontrol->value.integer.value[0],
				     chip->audio_monitor_active[audio]);
		vx_set_monitor_level(chip, audio+1, ucontrol->value.integer.value[1],
				     chip->audio_monitor_active[audio+1]);
		up(&chip->mixer_mutex);
		return 1;
	}
	up(&chip->mixer_mutex);
	return 0;
}

static int vx_audio_sw_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int vx_audio_sw_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
	int audio = kcontrol->private_value & 0xff;

	down(&chip->mixer_mutex);
	ucontrol->value.integer.value[0] = chip->audio_active[audio];
	ucontrol->value.integer.value[1] = chip->audio_active[audio+1];
	up(&chip->mixer_mutex);
	return 0;
}

static int vx_audio_sw_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
	int audio = kcontrol->private_value & 0xff;

	down(&chip->mixer_mutex);
	if (ucontrol->value.integer.value[0] != chip->audio_active[audio] ||
	    ucontrol->value.integer.value[1] != chip->audio_active[audio+1]) {
		vx_set_audio_switch(chip, audio, ucontrol->value.integer.value[0]);
		vx_set_audio_switch(chip, audio+1, ucontrol->value.integer.value[1]);
		up(&chip->mixer_mutex);
		return 1;
	}
	up(&chip->mixer_mutex);
	return 0;
}

static int vx_monitor_sw_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
	int audio = kcontrol->private_value & 0xff;

	down(&chip->mixer_mutex);
	ucontrol->value.integer.value[0] = chip->audio_monitor_active[audio];
	ucontrol->value.integer.value[1] = chip->audio_monitor_active[audio+1];
	up(&chip->mixer_mutex);
	return 0;
}

static int vx_monitor_sw_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
	int audio = kcontrol->private_value & 0xff;

	down(&chip->mixer_mutex);
	if (ucontrol->value.integer.value[0] != chip->audio_monitor_active[audio] ||
	    ucontrol->value.integer.value[1] != chip->audio_monitor_active[audio+1]) {
		vx_set_monitor_level(chip, audio, chip->audio_monitor[audio],
				     ucontrol->value.integer.value[0]);
		vx_set_monitor_level(chip, audio+1, chip->audio_monitor[audio+1],
				     ucontrol->value.integer.value[1]);
		up(&chip->mixer_mutex);
		return 1;
	}
	up(&chip->mixer_mutex);
	return 0;
}

static snd_kcontrol_new_t vx_control_audio_gain = {
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	/* name will be filled later */
	.info =         vx_audio_gain_info,
	.get =          vx_audio_gain_get,
	.put =          vx_audio_gain_put
};
static snd_kcontrol_new_t vx_control_output_switch = {
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =         "PCM Playback Switch",
	.info =         vx_audio_sw_info,
	.get =          vx_audio_sw_get,
	.put =          vx_audio_sw_put
};
static snd_kcontrol_new_t vx_control_monitor_gain = {
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =         "Monitoring Volume",
	.info =         vx_audio_gain_info,	/* shared */
	.get =          vx_audio_monitor_get,
	.put =          vx_audio_monitor_put
};
static snd_kcontrol_new_t vx_control_monitor_switch = {
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =         "Monitoring Switch",
	.info =         vx_audio_sw_info,	/* shared */
	.get =          vx_monitor_sw_get,
	.put =          vx_monitor_sw_put
};


/*
 * IEC958 status bits
 */
static int vx_iec958_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
	uinfo->count = 1;
	return 0;
}

static int vx_iec958_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *chip = snd_kcontrol_chip(kcontrol);

	down(&chip->mixer_mutex);
	ucontrol->value.iec958.status[0] = (chip->uer_bits >> 0) & 0xff;
	ucontrol->value.iec958.status[1] = (chip->uer_bits >> 8) & 0xff;
	ucontrol->value.iec958.status[2] = (chip->uer_bits >> 16) & 0xff;
	ucontrol->value.iec958.status[3] = (chip->uer_bits >> 24) & 0xff;
	up(&chip->mixer_mutex);
        return 0;
}

static int vx_iec958_mask_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	ucontrol->value.iec958.status[0] = 0xff;
	ucontrol->value.iec958.status[1] = 0xff;
	ucontrol->value.iec958.status[2] = 0xff;
	ucontrol->value.iec958.status[3] = 0xff;
        return 0;
}

static int vx_iec958_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
	unsigned int val;

	val = (ucontrol->value.iec958.status[0] << 0) |
	      (ucontrol->value.iec958.status[1] << 8) |
	      (ucontrol->value.iec958.status[2] << 16) |
	      (ucontrol->value.iec958.status[3] << 24);
	down(&chip->mixer_mutex);
	if (chip->uer_bits != val) {
		chip->uer_bits = val;
		vx_set_iec958_status(chip, val);
		up(&chip->mixer_mutex);
		return 1;
	}
	up(&chip->mixer_mutex);
	return 0;
}

static snd_kcontrol_new_t vx_control_iec958_mask = {
	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
	.info =		vx_iec958_info,	/* shared */
	.get =		vx_iec958_mask_get,
};

static snd_kcontrol_new_t vx_control_iec958 = {
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
	.info =         vx_iec958_info,
	.get =          vx_iec958_get,
	.put =          vx_iec958_put
};


/*
 * VU meter
 */

#define METER_MAX	0xff
#define METER_SHIFT	16

static int vx_vu_meter_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = METER_MAX;
	return 0;
}

static int vx_vu_meter_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
	struct vx_vu_meter meter[2];
	int audio = kcontrol->private_value & 0xff;
	int capture = (kcontrol->private_value >> 8) & 1;

	vx_get_audio_vu_meter(chip, audio, capture, meter);
	ucontrol->value.integer.value[0] = meter[0].vu_level >> METER_SHIFT;
	ucontrol->value.integer.value[1] = meter[1].vu_level >> METER_SHIFT;
	return 0;
}

static int vx_peak_meter_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
	struct vx_vu_meter meter[2];
	int audio = kcontrol->private_value & 0xff;
	int capture = (kcontrol->private_value >> 8) & 1;

	vx_get_audio_vu_meter(chip, audio, capture, meter);
	ucontrol->value.integer.value[0] = meter[0].peak_level >> METER_SHIFT;
	ucontrol->value.integer.value[1] = meter[1].peak_level >> METER_SHIFT;
	return 0;
}

static int vx_saturation_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int vx_saturation_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
	struct vx_vu_meter meter[2];
	int audio = kcontrol->private_value & 0xff;

	vx_get_audio_vu_meter(chip, audio, 1, meter); /* capture only */
	ucontrol->value.integer.value[0] = meter[0].saturated;
	ucontrol->value.integer.value[1] = meter[1].saturated;
	return 0;
}

static snd_kcontrol_new_t vx_control_vu_meter = {
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
	/* name will be filled later */
	.info =		vx_vu_meter_info,
	.get =		vx_vu_meter_get,
};

static snd_kcontrol_new_t vx_control_peak_meter = {
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
	/* name will be filled later */
	.info =		vx_vu_meter_info,	/* shared */
	.get =		vx_peak_meter_get,
};

static snd_kcontrol_new_t vx_control_saturation = {
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =		"Input Saturation",
	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
	.info =		vx_saturation_info,
	.get =		vx_saturation_get,
};



/*
 *
 */

int snd_vx_mixer_new(vx_core_t *chip)
{
	unsigned int i, c;
	int err;
	snd_kcontrol_new_t temp;
	snd_card_t *card = chip->card;
	char name[32];

	strcpy(card->mixername, card->driver);

	/* output level controls */
	for (i = 0; i < chip->hw->num_outs; i++) {
		temp = vx_control_output_level;
		temp.index = i;
		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
			return err;
	}

	/* PCM volumes, switches, monitoring */
	for (i = 0; i < chip->hw->num_outs; i++) {
		int val = i * 2;
		temp = vx_control_audio_gain;
		temp.index = i;
		temp.name = "PCM Playback Volume";
		temp.private_value = val;
		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
			return err;
		temp = vx_control_output_switch;
		temp.index = i;
		temp.private_value = val;
		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
			return err;
		temp = vx_control_monitor_gain;
		temp.index = i;
		temp.private_value = val;
		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
			return err;
		temp = vx_control_monitor_switch;
		temp.index = i;
		temp.private_value = val;
		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
			return err;
	}
	for (i = 0; i < chip->hw->num_outs; i++) {
		temp = vx_control_audio_gain;
		temp.index = i;
		temp.name = "PCM Capture Volume";
		temp.private_value = (i * 2) | (1 << 8);
		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
			return err;
	}

	/* Audio source */
	if ((err = snd_ctl_add(card, snd_ctl_new1(&vx_control_audio_src, chip))) < 0)
		return err;
	/* clock mode */
	if ((err = snd_ctl_add(card, snd_ctl_new1(&vx_control_clock_mode, chip))) < 0)
		return err;
	/* IEC958 controls */
	if ((err = snd_ctl_add(card, snd_ctl_new1(&vx_control_iec958_mask, chip))) < 0)
		return err;
	if ((err = snd_ctl_add(card, snd_ctl_new1(&vx_control_iec958, chip))) < 0)
		return err;
	/* VU, peak, saturation meters */
	for (c = 0; c < 2; c++) {
		static char *dir[2] = { "Output", "Input" };
		for (i = 0; i < chip->hw->num_ins; i++) {
			int val = (i * 2) | (c << 8);
			if (c == 1) {
				temp = vx_control_saturation;
				temp.index = i;
				temp.private_value = val;
				if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
					return err;
			}
			sprintf(name, "%s VU Meter", dir[c]);
			temp = vx_control_vu_meter;
			temp.index = i;
			temp.name = name;
			temp.private_value = val;
			if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
				return err;
			sprintf(name, "%s Peak Meter", dir[c]);
			temp = vx_control_peak_meter;
			temp.index = i;
			temp.name = name;
			temp.private_value = val;
			if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
				return err;
		}
	}
	vx_reset_audio_levels(chip);
	return 0;
}