ice1724.c

linux2.6.16版本

static void decode_spdif_bits(struct snd_aes_iec958 *diga, unsigned int val)
{
	memset(diga->status, 0, sizeof(diga->status));
	diga->status[0] = val & 0x03; /* professional, non-audio */
	if (val & 0x01) {
		/* professional */
		if (val & (1U << 3))
			diga->status[0] |= IEC958_AES0_PRO_EMPHASIS_5015;
		switch ((val >> 12) & 0x7) {
		case 0:
			break;
		case 2:
			diga->status[0] |= IEC958_AES0_PRO_FS_32000;
			break;
		default:
			diga->status[0] |= IEC958_AES0_PRO_FS_48000;
			break;
		}
	} else {
		/* consumer */
		diga->status[0] |= val & (1U << 2); /* copyright */
		if (val & (1U << 3))
			diga->status[0] |= IEC958_AES0_CON_EMPHASIS_5015;
		diga->status[1] |= (val >> 4) & 0x3f; /* category */
		diga->status[3] |= (val >> 12) & 0x07; /* fs */
	}
}

static int snd_vt1724_spdif_default_get(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	unsigned int val;
	val = inw(ICEMT1724(ice, SPDIF_CTRL));
	decode_spdif_bits(&ucontrol->value.iec958, val);
	return 0;
}

static int snd_vt1724_spdif_default_put(struct snd_kcontrol *kcontrol,
					 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	unsigned int val, old;

	val = encode_spdif_bits(&ucontrol->value.iec958);
	spin_lock_irq(&ice->reg_lock);
	old = inw(ICEMT1724(ice, SPDIF_CTRL));
	if (val != old)
		update_spdif_bits(ice, val);
	spin_unlock_irq(&ice->reg_lock);
	return (val != old);
}

static struct snd_kcontrol_new snd_vt1724_spdif_default __devinitdata =
{
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
	.info =		snd_vt1724_spdif_info,
	.get =		snd_vt1724_spdif_default_get,
	.put =		snd_vt1724_spdif_default_put
};

static int snd_vt1724_spdif_maskc_get(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.iec958.status[0] = IEC958_AES0_NONAUDIO |
						     IEC958_AES0_PROFESSIONAL |
						     IEC958_AES0_CON_NOT_COPYRIGHT |
						     IEC958_AES0_CON_EMPHASIS;
	ucontrol->value.iec958.status[1] = IEC958_AES1_CON_ORIGINAL |
						     IEC958_AES1_CON_CATEGORY;
	ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
	return 0;
}

static int snd_vt1724_spdif_maskp_get(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.iec958.status[0] = IEC958_AES0_NONAUDIO |
						     IEC958_AES0_PROFESSIONAL |
						     IEC958_AES0_PRO_FS |
						     IEC958_AES0_PRO_EMPHASIS;
	return 0;
}

static struct snd_kcontrol_new snd_vt1724_spdif_maskc __devinitdata =
{
	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
	.info =		snd_vt1724_spdif_info,
	.get =		snd_vt1724_spdif_maskc_get,
};

static struct snd_kcontrol_new snd_vt1724_spdif_maskp __devinitdata =
{
	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
	.iface =	SNDRV_CTL_ELEM_IFACE_PCM,
	.name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
	.info =		snd_vt1724_spdif_info,
	.get =		snd_vt1724_spdif_maskp_get,
};

static int snd_vt1724_spdif_sw_info(struct snd_kcontrol *kcontrol,
				    struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int snd_vt1724_spdif_sw_get(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	ucontrol->value.integer.value[0] = inb(ICEREG1724(ice, SPDIF_CFG)) &
		VT1724_CFG_SPDIF_OUT_EN ? 1 : 0;
	return 0;
}

static int snd_vt1724_spdif_sw_put(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	unsigned char old, val;

	spin_lock_irq(&ice->reg_lock);
	old = val = inb(ICEREG1724(ice, SPDIF_CFG));
	val &= ~VT1724_CFG_SPDIF_OUT_EN;
	if (ucontrol->value.integer.value[0])
		val |= VT1724_CFG_SPDIF_OUT_EN;
	if (old != val)
		outb(val, ICEREG1724(ice, SPDIF_CFG));
	spin_unlock_irq(&ice->reg_lock);
	return old != val;
}

static struct snd_kcontrol_new snd_vt1724_spdif_switch __devinitdata =
{
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	/* FIXME: the following conflict with IEC958 Playback Route */
	// .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
	.name =         SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
	.info =		snd_vt1724_spdif_sw_info,
	.get =		snd_vt1724_spdif_sw_get,
	.put =		snd_vt1724_spdif_sw_put
};


#if 0 /* NOT USED YET */
/*
 * GPIO access from extern
 */

int snd_vt1724_gpio_info(struct snd_kcontrol *kcontrol,
			 struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

int snd_vt1724_gpio_get(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	int shift = kcontrol->private_value & 0xff;
	int invert = (kcontrol->private_value & (1<<24)) ? 1 : 0;
	
	snd_ice1712_save_gpio_status(ice);
	ucontrol->value.integer.value[0] =
		(snd_ice1712_gpio_read(ice) & (1 << shift) ? 1 : 0) ^ invert;
	snd_ice1712_restore_gpio_status(ice);
	return 0;
}

int snd_ice1712_gpio_put(struct snd_kcontrol *kcontrol,
			 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	int shift = kcontrol->private_value & 0xff;
	int invert = (kcontrol->private_value & (1<<24)) ? mask : 0;
	unsigned int val, nval;

	if (kcontrol->private_value & (1 << 31))
		return -EPERM;
	nval = (ucontrol->value.integer.value[0] ? (1 << shift) : 0) ^ invert;
	snd_ice1712_save_gpio_status(ice);
	val = snd_ice1712_gpio_read(ice);
	nval |= val & ~(1 << shift);
	if (val != nval)
		snd_ice1712_gpio_write(ice, nval);
	snd_ice1712_restore_gpio_status(ice);
	return val != nval;
}
#endif /* NOT USED YET */

/*
 *  rate
 */
static int snd_vt1724_pro_internal_clock_info(struct snd_kcontrol *kcontrol,
					      struct snd_ctl_elem_info *uinfo)
{
	static char *texts_1724[] = {
		"8000",		/* 0: 6 */
		"9600",		/* 1: 3 */
		"11025",	/* 2: 10 */
		"12000",	/* 3: 2 */
		"16000",	/* 4: 5 */
		"22050",	/* 5: 9 */
		"24000",	/* 6: 1 */
		"32000",	/* 7: 4 */
		"44100",	/* 8: 8 */
		"48000",	/* 9: 0 */
		"64000",	/* 10: 15 */
		"88200",	/* 11: 11 */
		"96000",	/* 12: 7 */
		"176400",	/* 13: 12 */
		"192000",	/* 14: 14 */
		"IEC958 Input",	/* 15: -- */
	};
	static char *texts_1720[] = {
		"8000",		/* 0: 6 */
		"9600",		/* 1: 3 */
		"11025",	/* 2: 10 */
		"12000",	/* 3: 2 */
		"16000",	/* 4: 5 */
		"22050",	/* 5: 9 */
		"24000",	/* 6: 1 */
		"32000",	/* 7: 4 */
		"44100",	/* 8: 8 */
		"48000",	/* 9: 0 */
		"64000",	/* 10: 15 */
		"88200",	/* 11: 11 */
		"96000",	/* 12: 7 */
		"IEC958 Input",	/* 13: -- */
	};
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = ice->vt1720 ? 14 : 16;
	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
	strcpy(uinfo->value.enumerated.name,
	       ice->vt1720 ? texts_1720[uinfo->value.enumerated.item] :
	       texts_1724[uinfo->value.enumerated.item]);
	return 0;
}

static int snd_vt1724_pro_internal_clock_get(struct snd_kcontrol *kcontrol,
					     struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	static unsigned char xlate[16] = {
		9, 6, 3, 1, 7, 4, 0, 12, 8, 5, 2, 11, 13, 255, 14, 10
	};
	unsigned char val;
	
	spin_lock_irq(&ice->reg_lock);
	if (is_spdif_master(ice)) {
		ucontrol->value.enumerated.item[0] = ice->vt1720 ? 13 : 15;
	} else {
		val = xlate[inb(ICEMT1724(ice, RATE)) & 15];
		if (val == 255) {
			snd_BUG();
			val = 0;
		}
		ucontrol->value.enumerated.item[0] = val;
	}
	spin_unlock_irq(&ice->reg_lock);
	return 0;
}

static int snd_vt1724_pro_internal_clock_put(struct snd_kcontrol *kcontrol,
					     struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	unsigned char oval;
	int rate;
	int change = 0;
	int spdif = ice->vt1720 ? 13 : 15;

	spin_lock_irq(&ice->reg_lock);
	oval = inb(ICEMT1724(ice, RATE));
	if (ucontrol->value.enumerated.item[0] == spdif) {
		outb(oval | VT1724_SPDIF_MASTER, ICEMT1724(ice, RATE));
	} else {
		rate = rates[ucontrol->value.integer.value[0] % 15];
		if (rate <= get_max_rate(ice)) {
			PRO_RATE_DEFAULT = rate;
			spin_unlock_irq(&ice->reg_lock);
			snd_vt1724_set_pro_rate(ice, PRO_RATE_DEFAULT, 1);
			spin_lock_irq(&ice->reg_lock);
		}
	}
	change = inb(ICEMT1724(ice, RATE)) != oval;
	spin_unlock_irq(&ice->reg_lock);

	if ((oval & VT1724_SPDIF_MASTER) !=
	    (inb(ICEMT1724(ice, RATE)) & VT1724_SPDIF_MASTER)) {
		/* notify akm chips as well */
		if (is_spdif_master(ice)) {
			unsigned int i;
			for (i = 0; i < ice->akm_codecs; i++) {
				if (ice->akm[i].ops.set_rate_val)
					ice->akm[i].ops.set_rate_val(&ice->akm[i], 0);
			}
		}
	}
	return change;
}

static struct snd_kcontrol_new snd_vt1724_pro_internal_clock __devinitdata = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Multi Track Internal Clock",
	.info = snd_vt1724_pro_internal_clock_info,
	.get = snd_vt1724_pro_internal_clock_get,
	.put = snd_vt1724_pro_internal_clock_put
};

static int snd_vt1724_pro_rate_locking_info(struct snd_kcontrol *kcontrol,
					    struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int snd_vt1724_pro_rate_locking_get(struct snd_kcontrol *kcontrol,
					   struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = PRO_RATE_LOCKED;
	return 0;
}

static int snd_vt1724_pro_rate_locking_put(struct snd_kcontrol *kcontrol,
					   struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	int change = 0, nval;

	nval = ucontrol->value.integer.value[0] ? 1 : 0;
	spin_lock_irq(&ice->reg_lock);
	change = PRO_RATE_LOCKED != nval;
	PRO_RATE_LOCKED = nval;
	spin_unlock_irq(&ice->reg_lock);
	return change;
}

static struct snd_kcontrol_new snd_vt1724_pro_rate_locking __devinitdata = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Multi Track Rate Locking",
	.info = snd_vt1724_pro_rate_locking_info,
	.get = snd_vt1724_pro_rate_locking_get,
	.put = snd_vt1724_pro_rate_locking_put
};

static int snd_vt1724_pro_rate_reset_info(struct snd_kcontrol *kcontrol,
					  struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int snd_vt1724_pro_rate_reset_get(struct snd_kcontrol *kcontrol,
					 struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = PRO_RATE_RESET ? 1 : 0;
	return 0;
}

static int snd_vt1724_pro_rate_reset_put(struct snd_kcontrol *kcontrol,
					 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
	int change = 0, nval;

	nval = ucontrol->value.integer.value[0] ? 1 : 0;
	spin_lock_irq(&ice->reg_lock);
	change = PRO_RATE_RESET != nval;
	PRO_RATE_RESET = nval;
	spin_unlock_irq(&ice->reg_lock);
	return change;
}

static struct snd_kcontrol_new snd_vt1724_pro_rate_reset __devinitdata = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Multi Track Rate Reset",
	.info = snd_vt1724_pro_rate_reset_info,
	.get = snd_vt1724_pro_rate_reset_get,
	.put = snd_vt1724_pro_rate_reset_put
};


/*
 * routing
 */
static int snd_vt1724_pro_route_info(struct snd_kcontrol *kcontrol,
				     struct snd_ctl_elem_info *uinfo)
{
	static char *texts[] = {
		"PCM Out", /* 0 */
		"H/W In 0", "H/W In 1", /* 1-2 */
		"IEC958 In L", "IEC958 In R", /* 3-4 */
	};
	
	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 5;
	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
	return 0;
}

static inline int analog_route_shift(int idx)
{
	return (idx % 2) * 12 + ((idx / 2) * 3) + 8;
}

static inline int digital_route_shift(int idx)
{
	return idx * 3;
}

static int get_route_val(struct snd_ice1712 *ice, int shift)
{
	unsigned long val;
	unsigned char eitem;
	static unsigned char xlate[8] = {
		0, 255, 1, 2, 255, 255, 3, 4,
	};

	val = inl(ICEMT1724(ice, ROUTE_PLAYBACK));
	val >>= shift;
	val &= 7;	//we now have 3 bits per output
	eitem = xlate[val];
	if (eitem == 255) {
		snd_BUG();
		return 0;
	}
	return eitem;
}

static int put_route_val(struct snd_ice1712 *ice, unsigned int val, int shift)
{
	unsigned int old_val, nval;
	int change;