ak4xxx-adda.c

linux-2.6.15.6

	unsigned int mask = AK_GET_MASK(kcontrol->private_value);

	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = mask;
	return 0;
}

static int snd_akm4xxx_volume_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	akm4xxx_t *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);
	int invert = AK_GET_INVERT(kcontrol->private_value);
	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
	unsigned char val = snd_akm4xxx_get(ak, chip, addr);
	
	ucontrol->value.integer.value[0] = invert ? mask - val : val;
	return 0;
}

static int snd_akm4xxx_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	akm4xxx_t *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);
	int invert = AK_GET_INVERT(kcontrol->private_value);
	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
	unsigned char nval = ucontrol->value.integer.value[0] % (mask+1);
	int change;

	if (invert)
		nval = mask - nval;
	change = snd_akm4xxx_get(ak, chip, addr) != nval;
	if (change)
		snd_akm4xxx_write(ak, chip, addr, nval);
	return change;
}

static int snd_akm4xxx_ipga_gain_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 36;
	return 0;
}

static int snd_akm4xxx_ipga_gain_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	akm4xxx_t *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_ipga(ak, chip, addr) & 0x7f;
	return 0;
}

static int snd_akm4xxx_ipga_gain_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	akm4xxx_t *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);
	unsigned char nval = (ucontrol->value.integer.value[0] % 37) | 0x80;
	int change = snd_akm4xxx_get_ipga(ak, chip, addr) != nval;
	if (change)
		snd_akm4xxx_write(ak, chip, addr, nval);
	return change;
}

static int snd_akm4xxx_deemphasis_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *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(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	akm4xxx_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	akm4xxx_t *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;
}

/*
 * build AK4xxx controls
 */

int snd_akm4xxx_build_controls(akm4xxx_t *ak)
{
	unsigned int idx, num_emphs;
	snd_kcontrol_t *ctl;
	int err;

	ctl = kmalloc(sizeof(*ctl), GFP_KERNEL);
	if (! ctl)
		return -ENOMEM;

	for (idx = 0; idx < ak->num_dacs; ++idx) {
		memset(ctl, 0, sizeof(*ctl));
		strcpy(ctl->id.name, "DAC Volume");
		ctl->id.index = idx + ak->idx_offset * 2;
		ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
		ctl->count = 1;
		ctl->info = snd_akm4xxx_volume_info;
		ctl->get = snd_akm4xxx_volume_get;
		ctl->put = snd_akm4xxx_volume_put;
		switch (ak->type) {
		case SND_AK4524:
			ctl->private_value = AK_COMPOSE(idx/2, (idx%2) + 6, 0, 127); /* register 6 & 7 */
			break;
		case SND_AK4528:
			ctl->private_value = AK_COMPOSE(idx/2, (idx%2) + 4, 0, 127); /* register 4 & 5 */
			break;
		case SND_AK4529: {
			int val = idx < 6 ? idx + 2 : (idx - 6) + 0xb; /* registers 2-7 and b,c */
			ctl->private_value = AK_COMPOSE(0, val, 0, 255) | AK_INVERT;
			break;
		}
		case SND_AK4355:
			ctl->private_value = AK_COMPOSE(0, idx + 4, 0, 255); /* register 4-9, chip #0 only */
			break;
		case SND_AK4358:
			if (idx >= 6)
				ctl->private_value = AK_COMPOSE(0, idx + 5, 0, 255); /* register 4-9, chip #0 only */
			else
				ctl->private_value = AK_COMPOSE(0, idx + 4, 0, 255); /* register 4-9, chip #0 only */
			break;
		case SND_AK4381:
			ctl->private_value = AK_COMPOSE(idx/2, (idx%2) + 3, 0, 255); /* register 3 & 4 */
			break;
		default:
			err = -EINVAL;
			goto __error;
		}
		ctl->private_data = ak;
		if ((err = snd_ctl_add(ak->card, snd_ctl_new(ctl, SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE))) < 0)
			goto __error;
	}
	for (idx = 0; idx < ak->num_adcs && ak->type == SND_AK4524; ++idx) {
		memset(ctl, 0, sizeof(*ctl));
		strcpy(ctl->id.name, "ADC Volume");
		ctl->id.index = idx + ak->idx_offset * 2;
		ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
		ctl->count = 1;
		ctl->info = snd_akm4xxx_volume_info;
		ctl->get = snd_akm4xxx_volume_get;
		ctl->put = snd_akm4xxx_volume_put;
		ctl->private_value = AK_COMPOSE(idx/2, (idx%2) + 4, 0, 127); /* register 4 & 5 */
		ctl->private_data = ak;
		if ((err = snd_ctl_add(ak->card, snd_ctl_new(ctl, SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE))) < 0)
			goto __error;

		memset(ctl, 0, sizeof(*ctl));
		strcpy(ctl->id.name, "IPGA Analog Capture Volume");
		ctl->id.index = idx + ak->idx_offset * 2;
		ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
		ctl->count = 1;
		ctl->info = snd_akm4xxx_ipga_gain_info;
		ctl->get = snd_akm4xxx_ipga_gain_get;
		ctl->put = snd_akm4xxx_ipga_gain_put;
		ctl->private_value = AK_COMPOSE(idx/2, (idx%2) + 4, 0, 0); /* register 4 & 5 */
		ctl->private_data = ak;
		if ((err = snd_ctl_add(ak->card, snd_ctl_new(ctl, SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE))) < 0)
			goto __error;
	}
	if (ak->type == SND_AK4355 || ak->type == SND_AK4358)
		num_emphs = 1;
	else
		num_emphs = ak->num_dacs / 2;
	for (idx = 0; idx < num_emphs; idx++) {
		memset(ctl, 0, sizeof(*ctl));
		strcpy(ctl->id.name, "Deemphasis");
		ctl->id.index = idx + ak->idx_offset;
		ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
		ctl->count = 1;
		ctl->info = snd_akm4xxx_deemphasis_info;
		ctl->get = snd_akm4xxx_deemphasis_get;
		ctl->put = snd_akm4xxx_deemphasis_put;
		switch (ak->type) {
		case SND_AK4524:
		case SND_AK4528:
			ctl->private_value = AK_COMPOSE(idx, 3, 0, 0); /* register 3 */
			break;
		case SND_AK4529: {
			int shift = idx == 3 ? 6 : (2 - idx) * 2;
			ctl->private_value = AK_COMPOSE(0, 8, shift, 0); /* register 8 with shift */
			break;
		}
		case SND_AK4355:
		case SND_AK4358:
			ctl->private_value = AK_COMPOSE(idx, 3, 0, 0);
			break;
		case SND_AK4381:
			ctl->private_value = AK_COMPOSE(idx, 1, 1, 0);
			break;
		}
		ctl->private_data = ak;
		if ((err = snd_ctl_add(ak->card, snd_ctl_new(ctl, SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE))) < 0)
			goto __error;
	}
	err = 0;

 __error:
	kfree(ctl);
	return err;
}

static int __init alsa_akm4xxx_module_init(void)
{
	return 0;
}
        
static void __exit alsa_akm4xxx_module_exit(void)
{
}
        
module_init(alsa_akm4xxx_module_init)
module_exit(alsa_akm4xxx_module_exit)

EXPORT_SYMBOL(snd_akm4xxx_write);
EXPORT_SYMBOL(snd_akm4xxx_reset);
EXPORT_SYMBOL(snd_akm4xxx_init);
EXPORT_SYMBOL(snd_akm4xxx_build_controls);