echoaudio.c

linux 内核源代码

	.tlv = {.p = db_scale_input_gain},
};

#endif /* ECHOCARD_HAS_INPUT_GAIN */



#ifdef ECHOCARD_HAS_OUTPUT_NOMINAL_LEVEL

/************ Analog output nominal level (+4dBu / -10dBV) ***************/
static int snd_echo_output_nominal_info (struct snd_kcontrol *kcontrol,
					 struct snd_ctl_elem_info *uinfo)
{
	struct echoaudio *chip;

	chip = snd_kcontrol_chip(kcontrol);
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = num_analog_busses_out(chip);
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int snd_echo_output_nominal_get(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_value *ucontrol)
{
	struct echoaudio *chip;
	int c;

	chip = snd_kcontrol_chip(kcontrol);
	for (c = 0; c < num_analog_busses_out(chip); c++)
		ucontrol->value.integer.value[c] = chip->nominal_level[c];
	return 0;
}

static int snd_echo_output_nominal_put(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_value *ucontrol)
{
	struct echoaudio *chip;
	int c, changed;

	changed = 0;
	chip = snd_kcontrol_chip(kcontrol);
	spin_lock_irq(&chip->lock);
	for (c = 0; c < num_analog_busses_out(chip); c++) {
		if (chip->nominal_level[c] != ucontrol->value.integer.value[c]) {
			set_nominal_level(chip, c,
					  ucontrol->value.integer.value[c]);
			changed = 1;
		}
	}
	if (changed)
		update_output_line_level(chip);
	spin_unlock_irq(&chip->lock);
	return changed;
}

static struct snd_kcontrol_new snd_echo_output_nominal_level __devinitdata = {
	.name = "Line Playback Switch (-10dBV)",
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.info = snd_echo_output_nominal_info,
	.get = snd_echo_output_nominal_get,
	.put = snd_echo_output_nominal_put,
};

#endif /* ECHOCARD_HAS_OUTPUT_NOMINAL_LEVEL */



#ifdef ECHOCARD_HAS_INPUT_NOMINAL_LEVEL

/*************** Analog input nominal level (+4dBu / -10dBV) ***************/
static int snd_echo_input_nominal_info(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_info *uinfo)
{
	struct echoaudio *chip;

	chip = snd_kcontrol_chip(kcontrol);
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = num_analog_busses_in(chip);
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int snd_echo_input_nominal_get(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_value *ucontrol)
{
	struct echoaudio *chip;
	int c;

	chip = snd_kcontrol_chip(kcontrol);
	for (c = 0; c < num_analog_busses_in(chip); c++)
		ucontrol->value.integer.value[c] =
			chip->nominal_level[bx_analog_in(chip) + c];
	return 0;
}

static int snd_echo_input_nominal_put(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_value *ucontrol)
{
	struct echoaudio *chip;
	int c, changed;

	changed = 0;
	chip = snd_kcontrol_chip(kcontrol);
	spin_lock_irq(&chip->lock);
	for (c = 0; c < num_analog_busses_in(chip); c++) {
		if (chip->nominal_level[bx_analog_in(chip) + c] !=
		    ucontrol->value.integer.value[c]) {
			set_nominal_level(chip, bx_analog_in(chip) + c,
					  ucontrol->value.integer.value[c]);
			changed = 1;
		}
	}
	if (changed)
		update_output_line_level(chip);	/* "Output" is not a mistake
						 * here.
						 */
	spin_unlock_irq(&chip->lock);
	return changed;
}

static struct snd_kcontrol_new snd_echo_intput_nominal_level __devinitdata = {
	.name = "Line Capture Switch (-10dBV)",
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.info = snd_echo_input_nominal_info,
	.get = snd_echo_input_nominal_get,
	.put = snd_echo_input_nominal_put,
};

#endif /* ECHOCARD_HAS_INPUT_NOMINAL_LEVEL */



#ifdef ECHOCARD_HAS_MONITOR

/******************* Monitor mixer *******************/
static int snd_echo_mixer_info(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_info *uinfo)
{
	struct echoaudio *chip;

	chip = snd_kcontrol_chip(kcontrol);
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = ECHOGAIN_MINOUT;
	uinfo->value.integer.max = ECHOGAIN_MAXOUT;
	uinfo->dimen.d[0] = num_busses_out(chip);
	uinfo->dimen.d[1] = num_busses_in(chip);
	return 0;
}

static int snd_echo_mixer_get(struct snd_kcontrol *kcontrol,
			      struct snd_ctl_elem_value *ucontrol)
{
	struct echoaudio *chip;

	chip = snd_kcontrol_chip(kcontrol);
	ucontrol->value.integer.value[0] =
		chip->monitor_gain[ucontrol->id.index / num_busses_in(chip)]
			[ucontrol->id.index % num_busses_in(chip)];
	return 0;
}

static int snd_echo_mixer_put(struct snd_kcontrol *kcontrol,
			      struct snd_ctl_elem_value *ucontrol)
{
	struct echoaudio *chip;
	int changed,  gain;
	short out, in;

	changed = 0;
	chip = snd_kcontrol_chip(kcontrol);
	out = ucontrol->id.index / num_busses_in(chip);
	in = ucontrol->id.index % num_busses_in(chip);
	gain = ucontrol->value.integer.value[0];
	if (gain < ECHOGAIN_MINOUT || gain > ECHOGAIN_MAXOUT)
		return -EINVAL;
	if (chip->monitor_gain[out][in] != gain) {
		spin_lock_irq(&chip->lock);
		set_monitor_gain(chip, out, in, gain);
		update_output_line_level(chip);
		spin_unlock_irq(&chip->lock);
		changed = 1;
	}
	return changed;
}

static struct snd_kcontrol_new snd_echo_monitor_mixer __devinitdata = {
	.name = "Monitor Mixer Volume",
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,
	.info = snd_echo_mixer_info,
	.get = snd_echo_mixer_get,
	.put = snd_echo_mixer_put,
	.tlv = {.p = db_scale_output_gain},
};

#endif /* ECHOCARD_HAS_MONITOR */



#ifdef ECHOCARD_HAS_VMIXER

/******************* Vmixer *******************/
static int snd_echo_vmixer_info(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_info *uinfo)
{
	struct echoaudio *chip;

	chip = snd_kcontrol_chip(kcontrol);
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = ECHOGAIN_MINOUT;
	uinfo->value.integer.max = ECHOGAIN_MAXOUT;
	uinfo->dimen.d[0] = num_busses_out(chip);
	uinfo->dimen.d[1] = num_pipes_out(chip);
	return 0;
}

static int snd_echo_vmixer_get(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct echoaudio *chip;

	chip = snd_kcontrol_chip(kcontrol);
	ucontrol->value.integer.value[0] =
		chip->vmixer_gain[ucontrol->id.index / num_pipes_out(chip)]
			[ucontrol->id.index % num_pipes_out(chip)];
	return 0;
}

static int snd_echo_vmixer_put(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct echoaudio *chip;
	int gain, changed;
	short vch, out;

	changed = 0;
	chip = snd_kcontrol_chip(kcontrol);
	out = ucontrol->id.index / num_pipes_out(chip);
	vch = ucontrol->id.index % num_pipes_out(chip);
	gain = ucontrol->value.integer.value[0];
	if (gain < ECHOGAIN_MINOUT || gain > ECHOGAIN_MAXOUT)
		return -EINVAL;
	if (chip->vmixer_gain[out][vch] != ucontrol->value.integer.value[0]) {
		spin_lock_irq(&chip->lock);
		set_vmixer_gain(chip, out, vch, ucontrol->value.integer.value[0]);
		update_vmixer_level(chip);
		spin_unlock_irq(&chip->lock);
		changed = 1;
	}
	return changed;
}

static struct snd_kcontrol_new snd_echo_vmixer __devinitdata = {
	.name = "VMixer Volume",
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,
	.info = snd_echo_vmixer_info,
	.get = snd_echo_vmixer_get,
	.put = snd_echo_vmixer_put,
	.tlv = {.p = db_scale_output_gain},
};

#endif /* ECHOCARD_HAS_VMIXER */



#ifdef ECHOCARD_HAS_DIGITAL_MODE_SWITCH

/******************* Digital mode switch *******************/
static int snd_echo_digital_mode_info(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_info *uinfo)
{
	static char *names[4] = {
		"S/PDIF Coaxial", "S/PDIF Optical", "ADAT Optical",
		"S/PDIF Cdrom"
	};
	struct echoaudio *chip;

	chip = snd_kcontrol_chip(kcontrol);
	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->value.enumerated.items = chip->num_digital_modes;
	uinfo->count = 1;
	if (uinfo->value.enumerated.item >= chip->num_digital_modes)
		uinfo->value.enumerated.item = chip->num_digital_modes - 1;
	strcpy(uinfo->value.enumerated.name, names[
			chip->digital_mode_list[uinfo->value.enumerated.item]]);
	return 0;
}

static int snd_echo_digital_mode_get(struct snd_kcontrol *kcontrol,
				     struct snd_ctl_elem_value *ucontrol)
{
	struct echoaudio *chip;
	int i, mode;

	chip = snd_kcontrol_chip(kcontrol);
	mode = chip->digital_mode;
	for (i = chip->num_digital_modes - 1; i >= 0; i--)
		if (mode == chip->digital_mode_list[i]) {
			ucontrol->value.enumerated.item[0] = i;
			break;
		}
	return 0;
}

static int snd_echo_digital_mode_put(struct snd_kcontrol *kcontrol,
				     struct snd_ctl_elem_value *ucontrol)
{
	struct echoaudio *chip;
	int changed;
	unsigned short emode, dmode;

	changed = 0;
	chip = snd_kcontrol_chip(kcontrol);

	emode = ucontrol->value.enumerated.item[0];
	if (emode >= chip->num_digital_modes)
		return -EINVAL;
	dmode = chip->digital_mode_list[emode];

	if (dmode != chip->digital_mode) {
		/* mode_mutex is required to make this operation atomic wrt
		pcm_digital_*_open() and set_input_clock() functions. */
		down(&chip->mode_mutex);

		/* Do not allow the user to change the digital mode when a pcm
		device is open because it also changes the number of channels
		and the allowed sample rates */
		if (atomic_read(&chip->opencount)) {
			changed = -EAGAIN;
		} else {
			changed = set_digital_mode(chip, dmode);
			/* If we had to change the clock source, report it */
			if (changed > 0 && chip->clock_src_ctl) {
				snd_ctl_notify(chip->card,
					       SNDRV_CTL_EVENT_MASK_VALUE,
					       &chip->clock_src_ctl->id);
				DE_ACT(("SDM() =%d\n", changed));
			}
			if (changed >= 0)
				changed = 1;	/* No errors */
		}
		up(&chip->mode_mutex);
	}
	return changed;
}

static struct snd_kcontrol_new snd_echo_digital_mode_switch __devinitdata = {
	.name = "Digital mode Switch",
	.iface = SNDRV_CTL_ELEM_IFACE_CARD,
	.info = snd_echo_digital_mode_info,
	.get = snd_echo_digital_mode_get,
	.put = snd_echo_digital_mode_put,
};

#endif /* ECHOCARD_HAS_DIGITAL_MODE_SWITCH */



#ifdef ECHOCARD_HAS_DIGITAL_IO

/******************* S/PDIF mode switch *******************/
static int snd_echo_spdif_mode_info(struct snd_kcontrol *kcontrol,
				    struct snd_ctl_elem_info *uinfo)
{
	static char *names[2] = {"Consumer", "Professional"};

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

static int snd_echo_spdif_mode_get(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{
	struct echoaudio *chip;

	chip = snd_kcontrol_chip(kcontrol);
	ucontrol->value.enumerated.item[0] = !!chip->professional_spdif;
	return 0;
}

static int snd_echo_spdif_mode_put(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{
	struct echoaudio *chip;
	int mode;

	chip = snd_kcontrol_chip(kcontrol);
	mode = !!ucontrol->value.enumerated.item[0];
	if (mode != chip->professional_spdif) {
		spin_lock_irq(&chip->lock);
		set_professional_spdif(chip, mode);
		spin_unlock_irq(&chip->lock);
		return 1;
	}
	return 0;
}

static struct snd_kcontrol_new snd_echo_spdif_mode_switch __devinitdata = {
	.name = "S/PDIF mode Switch",
	.iface = SNDRV_CTL_ELEM_IFACE_CARD,
	.info = snd_echo_spdif_mode_info,
	.get = snd_echo_spdif_mode_get,
	.put = snd_echo_spdif_mode_put,
};

#endif /* ECHOCARD_HAS_DIGITAL_IO */



#ifdef ECHOCARD_HAS_EXTERNAL_CLOCK

/******************* Select input clock source *******************/
static int snd_echo_clock_source_info(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_info *uinfo)
{
	static char *names[8] = {
		"Internal", "Word", "Super", "S/PDIF", "ADAT", "ESync",
		"ESync96", "MTC"
	};
	struct echoaudio *chip;

	chip = snd_kcontrol_chip(kcontrol);
	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->value.enumerated.items = chip->num_clock_sources;
	uinfo->count = 1;
	if (uinfo->value.enumerated.item >= chip->num_clock_sources)
		uinfo->value.enumerated.item = chip->num_clock_sources - 1;
	strcpy(uinfo->value.enumerated.name, names[
			chip->clock_source_list[uinfo->value.enumerated.item]]);
	return 0;
}

static int snd_echo_clock_source_get(struct snd_kcontrol *kcontrol,
				     struct snd_ctl_elem_value *ucontrol)
{
	struct echoaudio *chip;
	int i, clock;

	chip = snd_kcontrol_chip(kcontrol);
	clock = chip->input_clock;

	for (i = 0; i < chip->num_clock_sources; i++)
		if (clock == chip->clock_source_list[i])
			ucontrol->value.enumerated.item[0] = i;

	return 0;
}

static int snd_echo_clock_source_put(struct snd_kcontrol *kcontrol,
				     struct snd_ctl_elem_value *ucontrol)
{
	struct echoaudio *chip;
	int changed;
	unsigned int eclock, dclock;

	changed = 0;
	chip = snd_kcontrol_chip(kcontrol);
	eclock = ucontrol->value.enumerated.item[0];
	if (eclock >= chip->input_clock_types)
		return -EINVAL;
	dclock = chip->clock_source_list[eclock];
	if (chip->input_clock != dclock) {
		down(&chip->mode_mutex);
		spin_lock_irq(&chip->lock);
		if ((changed = set_input_clock(chip, dclock)) == 0)
			changed = 1;	/* no errors */
		spin_unlock_irq(&chip->lock);
		up(&chip->mode_mutex);
	}

	if (changed < 0)
		DE_ACT(("seticlk val%d err 0x%x\n", dclock, changed));

	return changed;
}

static struct snd_kcontrol_new snd_echo_clock_source_switch __devinitdata = {
	.name = "Sample Clock Source",
	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
	.info = snd_echo_clock_source_info,
	.get = snd_echo_clock_source_get,
	.put = snd_echo_clock_source_put,
};

#endif /* ECHOCARD_HAS_EXTERNAL_CLOCK */



#ifdef ECHOCARD_HAS_PHANTOM_POWER

/******************* Phantom power switch *******************/
#define snd_echo_phantom_power_info	snd_ctl_boolean_mono_info

static int snd_echo_phantom_power_get(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_value *ucontrol)
{
	struct echoaudio *chip = snd_kcontrol_chip(kcontrol);

	ucontrol->value.integer.value[0] = chip->phantom_power;
	return 0;
}

static int snd_echo_phantom_power_put(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_value *ucontrol)
{
	struct echoaudio *chip = snd_kcontrol_chip(kcontrol);
	int power, changed = 0;

	power = !!ucontrol->value.integer.value[0];
	if (chip->phantom_power != power) {
		spin_lock_irq(&chip->lock);
		changed = set_phantom_power(chip, power);
		spin_unlock_irq(&chip->lock);
		if (changed == 0)
			changed = 1;	/* no errors */
	}
	return changed;
}

static struct snd_kcontrol_new snd_echo_phantom_power_switch __devinitdata = {
	.name = "Phantom power Switch",
	.iface = SNDRV_CTL_ELEM_IFACE_CARD,
	.info = snd_echo_phantom_power_info,
	.get = snd_echo_phantom_power_get,
	.put = snd_echo_phantom_power_put,
};

#endif /* ECHOCARD_HAS_PHANTOM_POWER */



#ifdef ECHOCARD_HAS_DIGITAL_IN_AUTOMUTE

/******************* Digital input automute switch *******************/
#define snd_echo_automute_info		snd_ctl_boolean_mono_info