[ALSA] Provides preliminary support for the Terratec Phase 28 card

ICE1712 driver
Provides preliminary support for the Terratec Phase 28 card.
Not extensively tested and probably buggy, but it seems to work.

Signed-off-by: Simone Zinanni <simone@develer.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 728 insertions, 0 deletions

diff --git a/sound/pci/ice1712/phase.c b/sound/pci/ice1712/phase.c
index d1f90832443..5bf734b04fa 100644
--- a/sound/pci/ice1712/phase.c
+++ b/sound/pci/ice1712/phase.c
@@ -45,6 +45,47 @@
 #include "envy24ht.h"
 #include "phase.h"
 
+/* WM8770 registers */
+#define WM_DAC_ATTEN		0x00	/* DAC1-8 analog attenuation */
+#define WM_DAC_MASTER_ATTEN	0x08	/* DAC master analog attenuation */
+#define WM_DAC_DIG_ATTEN	0x09	/* DAC1-8 digital attenuation */
+#define WM_DAC_DIG_MASTER_ATTEN	0x11	/* DAC master digital attenuation */
+#define WM_PHASE_SWAP		0x12	/* DAC phase */
+#define WM_DAC_CTRL1		0x13	/* DAC control bits */
+#define WM_MUTE			0x14	/* mute controls */
+#define WM_DAC_CTRL2		0x15	/* de-emphasis and zefo-flag */
+#define WM_INT_CTRL		0x16	/* interface control */
+#define WM_MASTER		0x17	/* master clock and mode */
+#define WM_POWERDOWN		0x18	/* power-down controls */
+#define WM_ADC_GAIN		0x19	/* ADC gain L(19)/R(1a) */
+#define WM_ADC_MUX		0x1b	/* input MUX */
+#define WM_OUT_MUX1		0x1c	/* output MUX */
+#define WM_OUT_MUX2		0x1e	/* output MUX */
+#define WM_RESET		0x1f	/* software reset */
+
+
+/*
+ * Logarithmic volume values for WM8770
+ * Computed as 20 * Log10(255 / x)
+ */
+static unsigned char wm_vol[256] = {
+	127, 48, 42, 39, 36, 34, 33, 31, 30, 29, 28, 27, 27, 26, 25, 25, 24, 24, 23,
+	23, 22, 22, 21, 21, 21, 20, 20, 20, 19, 19, 19, 18, 18, 18, 18, 17, 17, 17,
+	17, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13,
+	13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11,
+	11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8,
+	8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+	5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3,
+	3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0
+};
+
+#define WM_VOL_MAX	(sizeof(wm_vol) - 1)
+#define WM_VOL_MUTE	0x8000
+
 static akm4xxx_t akm_phase22 __devinitdata = {
 	.type = SND_AK4524,
 	.num_dacs = 2,
@@ -124,6 +165,684 @@ static unsigned char phase22_eeprom[] __devinitdata = {
 	0x00,	/* GPIO_STATE2 */
 };
 
+static unsigned char phase28_eeprom[] __devinitdata = {
+	0x0b,	/* SYSCONF: clock 512, spdif-in/ADC, 4DACs */
+	0x80,	/* ACLINK: I2S */
+	0xfc,	/* I2S: vol, 96k, 24bit, 192k */
+	0xc3,	/* SPDIF: out-en, out-int, spdif-in */
+	0xff,	/* GPIO_DIR */
+	0xff,	/* GPIO_DIR1 */
+	0x5f,	/* GPIO_DIR2 */
+	0x00,	/* GPIO_MASK */
+	0x00,	/* GPIO_MASK1 */
+	0x00,	/* GPIO_MASK2 */
+	0x00,	/* GPIO_STATE */
+	0x00,	/* GPIO_STATE1 */
+	0x00,	/* GPIO_STATE2 */
+};
+
+/*
+ * write data in the SPI mode
+ */
+static void phase28_spi_write(ice1712_t *ice, unsigned int cs, unsigned int data, int bits)
+{
+	unsigned int tmp;
+	int i;
+
+	tmp = snd_ice1712_gpio_read(ice);
+
+	snd_ice1712_gpio_set_mask(ice, ~(PHASE28_WM_RW|PHASE28_SPI_MOSI|PHASE28_SPI_CLK|
+					 PHASE28_WM_CS));
+	tmp |= PHASE28_WM_RW;
+	tmp &= ~cs;
+	snd_ice1712_gpio_write(ice, tmp);
+	udelay(1);
+
+	for (i = bits - 1; i >= 0; i--) {
+		tmp &= ~PHASE28_SPI_CLK;
+		snd_ice1712_gpio_write(ice, tmp);
+		udelay(1);
+		if (data & (1 << i))
+			tmp |= PHASE28_SPI_MOSI;
+		else
+			tmp &= ~PHASE28_SPI_MOSI;
+		snd_ice1712_gpio_write(ice, tmp);
+		udelay(1);
+		tmp |= PHASE28_SPI_CLK;
+		snd_ice1712_gpio_write(ice, tmp);
+		udelay(1);
+	}
+
+	tmp &= ~PHASE28_SPI_CLK;
+	tmp |= cs;
+	snd_ice1712_gpio_write(ice, tmp);
+	udelay(1);
+	tmp |= PHASE28_SPI_CLK;
+	snd_ice1712_gpio_write(ice, tmp);
+	udelay(1);
+}
+
+/*
+ * get the current register value of WM codec
+ */
+static unsigned short wm_get(ice1712_t *ice, int reg)
+{
+	reg <<= 1;
+	return ((unsigned short)ice->akm[0].images[reg] << 8) |
+		ice->akm[0].images[reg + 1];
+}
+
+/*
+ * set the register value of WM codec
+ */
+static void wm_put_nocache(ice1712_t *ice, int reg, unsigned short val)
+{
+	phase28_spi_write(ice, PHASE28_WM_CS, (reg << 9) | (val & 0x1ff), 16);
+}
+
+/*
+ * set the register value of WM codec and remember it
+ */
+static void wm_put(ice1712_t *ice, int reg, unsigned short val)
+{
+	wm_put_nocache(ice, reg, val);
+	reg <<= 1;
+	ice->akm[0].images[reg] = val >> 8;
+	ice->akm[0].images[reg + 1] = val;
+}
+
+static void wm_set_vol(ice1712_t *ice, unsigned int index, unsigned short vol, unsigned short master)
+{
+	unsigned char nvol;
+
+	if ((master & WM_VOL_MUTE) || (vol & WM_VOL_MUTE))
+		nvol = 0;
+	else
+		nvol = 127 - wm_vol[(((vol & ~WM_VOL_MUTE) * (master & ~WM_VOL_MUTE)) / 127) & WM_VOL_MAX];
+
+	wm_put(ice, index, nvol);
+	wm_put_nocache(ice, index, 0x180 | nvol);
+}
+
+/*
+ * DAC mute control
+ */
+#define wm_pcm_mute_info	phase28_mono_bool_info
+
+static int wm_pcm_mute_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
+
+	down(&ice->gpio_mutex);
+	ucontrol->value.integer.value[0] = (wm_get(ice, WM_MUTE) & 0x10) ? 0 : 1;
+	up(&ice->gpio_mutex);
+	return 0;
+}
+
+static int wm_pcm_mute_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
+	unsigned short nval, oval;
+	int change;
+
+	snd_ice1712_save_gpio_status(ice);
+	oval = wm_get(ice, WM_MUTE);
+	nval = (oval & ~0x10) | (ucontrol->value.integer.value[0] ? 0 : 0x10);
+	if ((change = (nval != oval)))
+		wm_put(ice, WM_MUTE, nval);
+	snd_ice1712_restore_gpio_status(ice);
+
+	return change;
+}
+
+/*
+ * Master volume attenuation mixer control
+ */
+static int wm_master_vol_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 = WM_VOL_MAX;
+	return 0;
+}
+
+static int wm_master_vol_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
+	int i;
+	for (i=0; i<2; i++)
+		ucontrol->value.integer.value[i] = ice->spec.phase28.master[i] & ~WM_VOL_MUTE;
+	return 0;
+}
+
+static int wm_master_vol_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
+	int ch, change = 0;
+
+	snd_ice1712_save_gpio_status(ice);
+	for (ch = 0; ch < 2; ch++) {
+		if (ucontrol->value.integer.value[ch] != ice->spec.phase28.master[ch]) {
+			int dac;
+			ice->spec.phase28.master[ch] &= WM_VOL_MUTE;
+			ice->spec.phase28.master[ch] |= ucontrol->value.integer.value[ch];
+			for (dac = 0; dac < ice->num_total_dacs; dac += 2)
+				wm_set_vol(ice, WM_DAC_ATTEN + dac + ch,
+					   ice->spec.phase28.vol[dac + ch],
+					   ice->spec.phase28.master[ch]);
+			change = 1;
+		}
+	}
+	snd_ice1712_restore_gpio_status(ice);
+	return change;
+}
+
+static int __devinit phase28_init(ice1712_t *ice)
+{
+	static unsigned short wm_inits_phase28[] = {
+		/* These come first to reduce init pop noise */
+		0x1b, 0x044,		/* ADC Mux (AC'97 source) */
+		0x1c, 0x00B,		/* Out Mux1 (VOUT1 = DAC+AUX, VOUT2 = DAC) */
+		0x1d, 0x009,		/* Out Mux2 (VOUT2 = DAC, VOUT3 = DAC) */
+
+		0x18, 0x000,		/* All power-up */
+
+		0x16, 0x122,		/* I2S, normal polarity, 24bit */
+		0x17, 0x022,		/* 256fs, slave mode */
+		0x00, 0,		/* DAC1 analog mute */
+		0x01, 0,		/* DAC2 analog mute */
+		0x02, 0,		/* DAC3 analog mute */
+		0x03, 0,		/* DAC4 analog mute */
+		0x04, 0,		/* DAC5 analog mute */
+		0x05, 0,		/* DAC6 analog mute */
+		0x06, 0,		/* DAC7 analog mute */
+		0x07, 0,		/* DAC8 analog mute */
+		0x08, 0x100,		/* master analog mute */
+		0x09, 0xff,		/* DAC1 digital full */
+		0x0a, 0xff,		/* DAC2 digital full */
+		0x0b, 0xff,		/* DAC3 digital full */
+		0x0c, 0xff,		/* DAC4 digital full */
+		0x0d, 0xff,		/* DAC5 digital full */
+		0x0e, 0xff,		/* DAC6 digital full */
+		0x0f, 0xff,		/* DAC7 digital full */
+		0x10, 0xff,		/* DAC8 digital full */
+		0x11, 0x1ff,		/* master digital full */
+		0x12, 0x000,		/* phase normal */
+		0x13, 0x090,		/* unmute DAC L/R */
+		0x14, 0x000,		/* all unmute */
+		0x15, 0x000,		/* no deemphasis, no ZFLG */
+		0x19, 0x000,		/* -12dB ADC/L */
+		0x1a, 0x000,		/* -12dB ADC/R */
+		(unsigned short)-1
+	};
+
+	unsigned int tmp;
+	akm4xxx_t *ak;
+	unsigned short *p;
+	int i;
+
+	ice->num_total_dacs = 8;
+	ice->num_total_adcs = 2;
+
+	// Initialize analog chips
+	ak = ice->akm = kcalloc(1, sizeof(akm4xxx_t), GFP_KERNEL);
+	if (!ak)
+		return -ENOMEM;
+	ice->akm_codecs = 1;
+
+	snd_ice1712_gpio_set_dir(ice, 0x5fffff); /* fix this for the time being */
+
+	/* reset the wm codec as the SPI mode */
+	snd_ice1712_save_gpio_status(ice);
+	snd_ice1712_gpio_set_mask(ice, ~(PHASE28_WM_RESET|PHASE28_WM_CS|PHASE28_HP_SEL));
+
+	tmp = snd_ice1712_gpio_read(ice);
+	tmp &= ~PHASE28_WM_RESET;
+	snd_ice1712_gpio_write(ice, tmp);
+	udelay(1);
+	tmp |= PHASE28_WM_CS;
+	snd_ice1712_gpio_write(ice, tmp);
+	udelay(1);
+	tmp |= PHASE28_WM_RESET;
+	snd_ice1712_gpio_write(ice, tmp);
+	udelay(1);
+
+	p = wm_inits_phase28;
+	for (; *p != (unsigned short)-1; p += 2)
+		wm_put(ice, p[0], p[1]);
+
+	snd_ice1712_restore_gpio_status(ice);
+
+	ice->spec.phase28.master[0] = WM_VOL_MUTE;
+	ice->spec.phase28.master[1] = WM_VOL_MUTE;
+	for (i = 0; i < ice->num_total_dacs; i++) {
+		ice->spec.phase28.vol[i] = WM_VOL_MUTE;
+		wm_set_vol(ice, i, ice->spec.phase28.vol[i], ice->spec.phase28.master[i % 2]);
+	}
+
+	return 0;
+}
+
+/*
+ * DAC volume attenuation mixer control
+ */
+static int wm_vol_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+{
+	int voices = kcontrol->private_value >> 8;
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = voices;
+	uinfo->value.integer.min = 0;		/* mute (-101dB) */
+	uinfo->value.integer.max = 0x7F;	/* 0dB */
+	return 0;
+}
+
+static int wm_vol_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
+	int i, ofs, voices;
+
+	voices = kcontrol->private_value >> 8;
+	ofs = kcontrol->private_value & 0xff;
+	for (i = 0; i < voices; i++)
+		ucontrol->value.integer.value[i] = ice->spec.phase28.vol[ofs+i] & ~WM_VOL_MUTE;
+	return 0;
+}
+
+static int wm_vol_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
+	int i, idx, ofs, voices;
+	int change = 0;
+
+	voices = kcontrol->private_value >> 8;
+	ofs = kcontrol->private_value & 0xff;
+	snd_ice1712_save_gpio_status(ice);
+	for (i = 0; i < voices; i++) {
+		idx  = WM_DAC_ATTEN + ofs + i;
+		if (ucontrol->value.integer.value[i] != ice->spec.phase28.vol[ofs+i]) {
+			ice->spec.phase28.vol[ofs+i] &= WM_VOL_MUTE;
+			ice->spec.phase28.vol[ofs+i] |= ucontrol->value.integer.value[i];
+			wm_set_vol(ice, idx, ice->spec.phase28.vol[ofs+i],
+				   ice->spec.phase28.master[i]);
+			change = 1;
+		}
+	}
+	snd_ice1712_restore_gpio_status(ice);
+	return change;
+}
+
+/*
+ * WM8770 mute control
+ */
+static int wm_mute_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo) {
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = kcontrol->private_value >> 8;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	return 0;
+}
+
+static int wm_mute_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
+	int voices, ofs, i;
+
+	voices = kcontrol->private_value >> 8;
+	ofs = kcontrol->private_value & 0xFF;
+
+	for (i = 0; i < voices; i++)
+		ucontrol->value.integer.value[i] = (ice->spec.phase28.vol[ofs+i] & WM_VOL_MUTE) ? 0 : 1;
+	return 0;
+}
+
+static int wm_mute_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
+	int change = 0, voices, ofs, i;
+
+	voices = kcontrol->private_value >> 8;
+	ofs = kcontrol->private_value & 0xFF;
+
+	snd_ice1712_save_gpio_status(ice);
+	for (i = 0; i < voices; i++) {
+		int val = (ice->spec.phase28.vol[ofs + i] & WM_VOL_MUTE) ? 0 : 1;
+		if (ucontrol->value.integer.value[i] != val) {
+			ice->spec.phase28.vol[ofs + i] &= ~WM_VOL_MUTE;
+			ice->spec.phase28.vol[ofs + i] |=
+				ucontrol->value.integer.value[i] ? 0 : WM_VOL_MUTE;
+			wm_set_vol(ice, ofs + i, ice->spec.phase28.vol[ofs + i],
+				   ice->spec.phase28.master[i]);
+			change = 1;
+		}
+	}
+	snd_ice1712_restore_gpio_status(ice);
+
+	return change;
+}
+
+/*
+ * WM8770 master mute control
+ */
+static int wm_master_mute_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 wm_master_mute_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
+
+	ucontrol->value.integer.value[0] = (ice->spec.phase28.master[0] & WM_VOL_MUTE) ? 0 : 1;
+	ucontrol->value.integer.value[1] = (ice->spec.phase28.master[1] & WM_VOL_MUTE) ? 0 : 1;
+	return 0;
+}
+
+static int wm_master_mute_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
+	int change = 0, i;
+
+	snd_ice1712_save_gpio_status(ice);
+	for (i = 0; i < 2; i++) {
+		int val = (ice->spec.phase28.master[i] & WM_VOL_MUTE) ? 0 : 1;
+		if (ucontrol->value.integer.value[i] != val) {
+			int dac;
+			ice->spec.phase28.master[i] &= ~WM_VOL_MUTE;
+			ice->spec.phase28.master[i] |=
+				ucontrol->value.integer.value[i] ? 0 : WM_VOL_MUTE;
+			for (dac = 0; dac < ice->num_total_dacs; dac += 2)
+				wm_set_vol(ice, WM_DAC_ATTEN + dac + i,
+					   ice->spec.phase28.vol[dac + i],
+					   ice->spec.phase28.master[i]);
+			change = 1;
+		}
+	}
+	snd_ice1712_restore_gpio_status(ice);
+
+	return change;
+}
+
+/* digital master volume */
+#define PCM_0dB 0xff
+#define PCM_RES 128	/* -64dB */
+#define PCM_MIN (PCM_0dB - PCM_RES)
+static int wm_pcm_vol_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;		/* mute (-64dB) */
+	uinfo->value.integer.max = PCM_RES;	/* 0dB */
+	return 0;
+}
+
+static int wm_pcm_vol_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
+	unsigned short val;
+
+	down(&ice->gpio_mutex);
+	val = wm_get(ice, WM_DAC_DIG_MASTER_ATTEN) & 0xff;
+	val = val > PCM_MIN ? (val - PCM_MIN) : 0;
+	ucontrol->value.integer.value[0] = val;
+	up(&ice->gpio_mutex);
+	return 0;
+}
+
+static int wm_pcm_vol_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
+	unsigned short ovol, nvol;
+	int change = 0;
+
+	snd_ice1712_save_gpio_status(ice);
+	nvol = ucontrol->value.integer.value[0];
+	nvol = (nvol ? (nvol + PCM_MIN) : 0) & 0xff;
+	ovol = wm_get(ice, WM_DAC_DIG_MASTER_ATTEN) & 0xff;
+	if (ovol != nvol) {
+		wm_put(ice, WM_DAC_DIG_MASTER_ATTEN, nvol); /* prelatch */
+		wm_put_nocache(ice, WM_DAC_DIG_MASTER_ATTEN, nvol | 0x100); /* update */
+		change = 1;
+	}
+	snd_ice1712_restore_gpio_status(ice);
+	return change;
+}
+
+/*
+ */
+static int phase28_mono_bool_info(snd_kcontrol_t *k, snd_ctl_elem_info_t *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	return 0;
+}
+
+/*
+ * Deemphasis
+ */
+#define phase28_deemp_info	phase28_mono_bool_info
+
+static int phase28_deemp_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
+	ucontrol->value.integer.value[0] = (wm_get(ice, WM_DAC_CTRL2) & 0xf) == 0xf;
+	return 0;
+}
+
+static int phase28_deemp_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
+	int temp, temp2;
+	temp2 = temp = wm_get(ice, WM_DAC_CTRL2);
+	if (ucontrol->value.integer.value[0])
+		temp |= 0xf;
+	else
+		temp &= ~0xf;
+	if (temp != temp2) {
+		wm_put(ice, WM_DAC_CTRL2, temp);
+		return 1;
+	}
+	return 0;
+}
+
+/*
+ * ADC Oversampling
+ */
+static int phase28_oversampling_info(snd_kcontrol_t *k, snd_ctl_elem_info_t *uinfo)
+{
+	static char *texts[2] = { "128x", "64x"	};
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+	uinfo->count = 1;
+	uinfo->value.enumerated.items = 2;
+
+	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 int phase28_oversampling_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
+	ucontrol->value.enumerated.item[0] = (wm_get(ice, WM_MASTER) & 0x8) == 0x8;
+	return 0;
+}
+
+static int phase28_oversampling_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	int temp, temp2;
+	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
+
+	temp2 = temp = wm_get(ice, WM_MASTER);
+
+	if (ucontrol->value.enumerated.item[0])
+		temp |= 0x8;
+	else
+		temp &= ~0x8;
+
+	if (temp != temp2) {
+		wm_put(ice, WM_MASTER, temp);
+		return 1;
+	}
+	return 0;
+}
+
+static snd_kcontrol_new_t phase28_dac_controls[] __devinitdata = {
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Master Playback Switch",
+		.info = wm_master_mute_info,
+		.get = wm_master_mute_get,
+		.put = wm_master_mute_put
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Master Playback Volume",
+		.info = wm_master_vol_info,
+		.get = wm_master_vol_get,
+		.put = wm_master_vol_put
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Front Playback Switch",
+		.info = wm_mute_info,
+		.get = wm_mute_get,
+		.put = wm_mute_put,
+		.private_value = (2 << 8) | 0
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Front Playback Volume",
+		.info = wm_vol_info,
+		.get = wm_vol_get,
+		.put = wm_vol_put,
+		.private_value = (2 << 8) | 0
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Rear Playback Switch",
+		.info = wm_mute_info,
+		.get = wm_mute_get,
+		.put = wm_mute_put,
+		.private_value = (2 << 8) | 2
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Rear Playback Volume",
+		.info = wm_vol_info,
+		.get = wm_vol_get,
+		.put = wm_vol_put,
+		.private_value = (2 << 8) | 2
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Center Playback Switch",
+		.info = wm_mute_info,
+		.get = wm_mute_get,
+		.put = wm_mute_put,
+		.private_value = (1 << 8) | 4
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Center Playback Volume",
+		.info = wm_vol_info,
+		.get = wm_vol_get,
+		.put = wm_vol_put,
+		.private_value = (1 << 8) | 4
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "LFE Playback Switch",
+		.info = wm_mute_info,
+		.get = wm_mute_get,
+		.put = wm_mute_put,
+		.private_value = (1 << 8) | 5
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "LFE Playback Volume",
+		.info = wm_vol_info,
+		.get = wm_vol_get,
+		.put = wm_vol_put,
+		.private_value = (1 << 8) | 5
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Side Playback Switch",
+		.info = wm_mute_info,
+		.get = wm_mute_get,
+		.put = wm_mute_put,
+		.private_value = (2 << 8) | 6
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Side Playback Volume",
+		.info = wm_vol_info,
+		.get = wm_vol_get,
+		.put = wm_vol_put,
+		.private_value = (2 << 8) | 6
+	}
+};
+
+static snd_kcontrol_new_t wm_controls[] __devinitdata = {
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "PCM Playback Switch",
+		.info = wm_pcm_mute_info,
+		.get = wm_pcm_mute_get,
+		.put = wm_pcm_mute_put
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "PCM Playback Volume",
+		.info = wm_pcm_vol_info,
+		.get = wm_pcm_vol_get,
+		.put = wm_pcm_vol_put
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "DAC Deemphasis Switch",
+		.info = phase28_deemp_info,
+		.get = phase28_deemp_get,
+		.put = phase28_deemp_put
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "ADC Oversampling",
+		.info = phase28_oversampling_info,
+		.get = phase28_oversampling_get,
+		.put = phase28_oversampling_put
+	}
+};
+
+static int __devinit phase28_add_controls(ice1712_t *ice)
+{
+	unsigned int i, counts;
+	int err;
+
+	counts = ARRAY_SIZE(phase28_dac_controls);
+	for (i = 0; i < counts; i++) {
+		err = snd_ctl_add(ice->card, snd_ctl_new1(&phase28_dac_controls[i], ice));
+		if (err < 0)
+			return err;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(wm_controls); i++) {
+		err = snd_ctl_add(ice->card, snd_ctl_new1(&wm_controls[i], ice));
+		if (err < 0)
+			return err;
+	}
+
+	return 0;
+}
+
 struct snd_ice1712_card_info snd_vt1724_phase_cards[] __devinitdata = {
 	{
 		.subvendor = VT1724_SUBDEVICE_PHASE22,
@@ -134,5 +853,14 @@ struct snd_ice1712_card_info snd_vt1724_phase_cards[] __devinitdata = {
 		.eeprom_size = sizeof(phase22_eeprom),
 		.eeprom_data = phase22_eeprom,
 	},
+	{
+		.subvendor = VT1724_SUBDEVICE_PHASE28,
+		.name = "Terratec PHASE 28",
+		.model = "phase28",
+		.chip_init = phase28_init,
+		.build_controls = phase28_add_controls,
+		.eeprom_size = sizeof(phase28_eeprom),
+		.eeprom_data = phase28_eeprom,
+	},
 	{ } /* terminator */
 };