Пример #1
0
static int put_ak_reg(struct snd_kcontrol *kcontrol, int addr,
		      unsigned char nval)
{
	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
	int chip = AK_GET_CHIP(kcontrol->private_value);

	if (snd_akm4xxx_get_vol(ak, chip, addr) == nval)
		return 0;

	snd_akm4xxx_set_vol(ak, chip, addr, nval);
	if (AK_GET_VOL_CVT(kcontrol->private_value) && nval < 128)
		nval = vol_cvt_datt[nval];
	if (AK_GET_IPGA(kcontrol->private_value) && nval >= 128)
		nval++; /* need to correct + 1 since both 127 and 128 are 0dB */
	if (AK_GET_INVERT(kcontrol->private_value))
		nval = mask - nval;
	if (AK_GET_NEEDSMSB(kcontrol->private_value))
		nval |= 0x80;
	/* printk(KERN_DEBUG "DEBUG - AK writing reg: chip %x addr %x,
	   nval %x\n", chip, addr, nval); */
	snd_akm4xxx_write(ak, chip, addr, nval);
	return 1;
}
Пример #2
0
static int put_ak_reg(struct snd_kcontrol *kcontrol, int addr,
		      unsigned char nval)
{
	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
	int chip = AK_GET_CHIP(kcontrol->private_value);

	if (snd_akm4xxx_get_vol(ak, chip, addr) == nval)
		return 0;

	snd_akm4xxx_set_vol(ak, chip, addr, nval);
	if (AK_GET_VOL_CVT(kcontrol->private_value) && nval < 128)
		nval = vol_cvt_datt[nval];
	if (AK_GET_IPGA(kcontrol->private_value) && nval >= 128)
		nval++; /* need to correct + 1 since both 127 and 128 are 0dB */
	if (AK_GET_INVERT(kcontrol->private_value))
		nval = mask - nval;
	if (AK_GET_NEEDSMSB(kcontrol->private_value))
		nval |= 0x80;
#ifdef CONFIG_DEBUG_PRINTK
	/* printk(KERN_DEBUG "DEBUG - AK writing reg: chip %x addr %x,
	   nval %x\n", chip, addr, nval); */
#else
	/* ;
#endif
	snd_akm4xxx_write(ak, chip, addr, nval);
	return 1;
}

static int snd_akm4xxx_volume_put(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
	unsigned int val = ucontrol->value.integer.value[0];
	if (val > mask)
		return -EINVAL;
	return put_ak_reg(kcontrol, AK_GET_ADDR(kcontrol->private_value), val);
}

static int snd_akm4xxx_stereo_volume_info(struct snd_kcontrol *kcontrol,
					  struct snd_ctl_elem_info *uinfo)
{
	unsigned int mask = AK_GET_MASK(kcontrol->private_value);

	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = mask;
	return 0;
}

static int snd_akm4xxx_stereo_volume_get(struct snd_kcontrol *kcontrol,
					 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);

	ucontrol->value.integer.value[0] = snd_akm4xxx_get_vol(ak, chip, addr);
	ucontrol->value.integer.value[1] = snd_akm4xxx_get_vol(ak, chip, addr+1);
	return 0;
}

static int snd_akm4xxx_stereo_volume_put(struct snd_kcontrol *kcontrol,
					 struct snd_ctl_elem_value *ucontrol)
{
	int addr = AK_GET_ADDR(kcontrol->private_value);
	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
	unsigned int val[2];
	int change;

	val[0] = ucontrol->value.integer.value[0];
	val[1] = ucontrol->value.integer.value[1];
	if (val[0] > mask || val[1] > mask)
		return -EINVAL;
	change = put_ak_reg(kcontrol, addr, val[0]);
	change |= put_ak_reg(kcontrol, addr + 1, val[1]);
	return change;
}

static int snd_akm4xxx_deemphasis_info(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_info *uinfo)
{
	static char *texts[4] = {
		"44.1kHz", "Off", "48kHz", "32kHz",
	};
	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 4;
	if (uinfo->value.enumerated.item >= 4)
		uinfo->value.enumerated.item = 3;
	strcpy(uinfo->value.enumerated.name,
	       texts[uinfo->value.enumerated.item]);
	return 0;
}

static int snd_akm4xxx_deemphasis_get(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_value *ucontrol)
{
	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);
	int shift = AK_GET_SHIFT(kcontrol->private_value);
	ucontrol->value.enumerated.item[0] =
		(snd_akm4xxx_get(ak, chip, addr) >> shift) & 3;
	return 0;
}

static int snd_akm4xxx_deemphasis_put(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_value *ucontrol)
{
	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);
	int shift = AK_GET_SHIFT(kcontrol->private_value);
	unsigned char nval = ucontrol->value.enumerated.item[0] & 3;
	int change;
	
	nval = (nval << shift) |
		(snd_akm4xxx_get(ak, chip, addr) & ~(3 << shift));
	change = snd_akm4xxx_get(ak, chip, addr) != nval;
	if (change)
		snd_akm4xxx_write(ak, chip, addr, nval);
	return change;
}

#define ak4xxx_switch_info	snd_ctl_boolean_mono_info

static int ak4xxx_switch_get(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{
	struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);
	int shift = AK_GET_SHIFT(kcontrol->private_value);
	int invert = AK_GET_INVERT(kcontrol->private_value);
	/* we observe the (1<<shift) bit only */
	unsigned char val = snd_akm4xxx_get(ak, chip, addr) & (1<<shift);
	if (invert)
		val = ! val;
	ucontrol->value.integer.value[0] = (val & (1<<shift)) != 0;
	return 0;
}