--- /dev/null
+/*
+ * ALSA driver for ICEnsemble VT1724 (Envy24HT)
+ *
+ * Lowlevel functions for ESI Maya44 cards
+ *
+ * Copyright (c) 2009 Takashi Iwai <tiwai@suse.de>
+ * Based on the patches by Rainer Zimmermann <mail@lightshed.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/pcm.h>
+#include <sound/tlv.h>
+
+#include "ice1712.h"
+#include "envy24ht.h"
+#include "maya44.h"
+
+/* WM8776 register indexes */
+#define WM8776_REG_HEADPHONE_L 0x00
+#define WM8776_REG_HEADPHONE_R 0x01
+#define WM8776_REG_HEADPHONE_MASTER 0x02
+#define WM8776_REG_DAC_ATTEN_L 0x03
+#define WM8776_REG_DAC_ATTEN_R 0x04
+#define WM8776_REG_DAC_ATTEN_MASTER 0x05
+#define WM8776_REG_DAC_PHASE 0x06
+#define WM8776_REG_DAC_CONTROL 0x07
+#define WM8776_REG_DAC_MUTE 0x08
+#define WM8776_REG_DAC_DEEMPH 0x09
+#define WM8776_REG_DAC_IF_CONTROL 0x0a
+#define WM8776_REG_ADC_IF_CONTROL 0x0b
+#define WM8776_REG_MASTER_MODE_CONTROL 0x0c
+#define WM8776_REG_POWERDOWN 0x0d
+#define WM8776_REG_ADC_ATTEN_L 0x0e
+#define WM8776_REG_ADC_ATTEN_R 0x0f
+#define WM8776_REG_ADC_ALC1 0x10
+#define WM8776_REG_ADC_ALC2 0x11
+#define WM8776_REG_ADC_ALC3 0x12
+#define WM8776_REG_ADC_NOISE_GATE 0x13
+#define WM8776_REG_ADC_LIMITER 0x14
+#define WM8776_REG_ADC_MUX 0x15
+#define WM8776_REG_OUTPUT_MUX 0x16
+#define WM8776_REG_RESET 0x17
+
+#define WM8776_NUM_REGS 0x18
+
+/* clock ratio identifiers for snd_wm8776_set_rate() */
+#define WM8776_CLOCK_RATIO_128FS 0
+#define WM8776_CLOCK_RATIO_192FS 1
+#define WM8776_CLOCK_RATIO_256FS 2
+#define WM8776_CLOCK_RATIO_384FS 3
+#define WM8776_CLOCK_RATIO_512FS 4
+#define WM8776_CLOCK_RATIO_768FS 5
+
+enum { WM_VOL_HP, WM_VOL_DAC, WM_VOL_ADC, WM_NUM_VOLS };
+enum { WM_SW_DAC, WM_SW_BYPASS, WM_NUM_SWITCHES };
+
+struct snd_wm8776 {
+ unsigned char addr;
+ unsigned short regs[WM8776_NUM_REGS];
+ unsigned char volumes[WM_NUM_VOLS][2];
+ unsigned int switch_bits;
+};
+
+struct snd_maya44 {
+ struct snd_ice1712 *ice;
+ struct snd_wm8776 wm[2];
+ struct mutex mutex;
+};
+
+
+/* write the given register and save the data to the cache */
+static void wm8776_write(struct snd_ice1712 *ice, struct snd_wm8776 *wm,
+ unsigned char reg, unsigned short val)
+{
+ /*
+ * WM8776 registers are up to 9 bits wide, bit 8 is placed in the LSB
+ * of the address field
+ */
+ snd_vt1724_write_i2c(ice, wm->addr,
+ (reg << 1) | ((val >> 8) & 1),
+ val & 0xff);
+ wm->regs[reg] = val;
+}
+
+/*
+ * update the given register with and/or mask and save the data to the cache
+ */
+static int wm8776_write_bits(struct snd_ice1712 *ice, struct snd_wm8776 *wm,
+ unsigned char reg,
+ unsigned short mask, unsigned short val)
+{
+ val |= wm->regs[reg] & ~mask;
+ if (val != wm->regs[reg]) {
+ wm8776_write(ice, wm, reg, val);
+ return 1;
+ }
+ return 0;
+}
+
+
+/*
+ * WM8776 volume controls
+ */
+
+struct maya_vol_info {
+ unsigned int maxval; /* volume range: 0..maxval */
+ unsigned char regs[2]; /* left and right registers */
+ unsigned short mask; /* value mask */
+ unsigned short offset; /* zero-value offset */
+ unsigned short mute; /* mute bit */
+ unsigned short update; /* update bits */
+ unsigned char mux_bits[2]; /* extra bits for ADC mute */
+};
+
+static struct maya_vol_info vol_info[WM_NUM_VOLS] = {
+ [WM_VOL_HP] = {
+ .maxval = 80,
+ .regs = { WM8776_REG_HEADPHONE_L, WM8776_REG_HEADPHONE_R },
+ .mask = 0x7f,
+ .offset = 0x30,
+ .mute = 0x00,
+ .update = 0x180, /* update and zero-cross enable */
+ },
+ [WM_VOL_DAC] = {
+ .maxval = 255,
+ .regs = { WM8776_REG_DAC_ATTEN_L, WM8776_REG_DAC_ATTEN_R },
+ .mask = 0xff,
+ .offset = 0x01,
+ .mute = 0x00,
+ .update = 0x100, /* zero-cross enable */
+ },
+ [WM_VOL_ADC] = {
+ .maxval = 91,
+ .regs = { WM8776_REG_ADC_ATTEN_L, WM8776_REG_ADC_ATTEN_R },
+ .mask = 0xff,
+ .offset = 0xa5,
+ .mute = 0xa5,
+ .update = 0x100, /* update */
+ .mux_bits = { 0x80, 0x40 }, /* ADCMUX bits */
+ },
+};
+
+/*
+ * dB tables
+ */
+/* headphone output: mute, -73..+6db (1db step) */
+static const DECLARE_TLV_DB_SCALE(db_scale_hp, -7400, 100, 1);
+/* DAC output: mute, -127..0db (0.5db step) */
+static const DECLARE_TLV_DB_SCALE(db_scale_dac, -12750, 50, 1);
+/* ADC gain: mute, -21..+24db (0.5db step) */
+static const DECLARE_TLV_DB_SCALE(db_scale_adc, -2100, 50, 1);
+
+static int maya_vol_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ unsigned int idx = kcontrol->private_value;
+ struct maya_vol_info *vol = &vol_info[idx];
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 2;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = vol->maxval;
+ return 0;
+}
+
+static int maya_vol_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
+ struct snd_wm8776 *wm =
+ &chip->wm[snd_ctl_get_ioff(kcontrol, &ucontrol->id)];
+ unsigned int idx = kcontrol->private_value;
+
+ mutex_lock(&chip->mutex);
+ ucontrol->value.integer.value[0] = wm->volumes[idx][0];
+ ucontrol->value.integer.value[1] = wm->volumes[idx][1];
+ mutex_unlock(&chip->mutex);
+ return 0;
+}
+
+static int maya_vol_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
+ struct snd_wm8776 *wm =
+ &chip->wm[snd_ctl_get_ioff(kcontrol, &ucontrol->id)];
+ unsigned int idx = kcontrol->private_value;
+ struct maya_vol_info *vol = &vol_info[idx];
+ unsigned int val, data;
+ int ch, changed = 0;
+
+ mutex_lock(&chip->mutex);
+ for (ch = 0; ch < 2; ch++) {
+ val = ucontrol->value.integer.value[ch];
+ if (val > vol->maxval)
+ val = vol->maxval;
+ if (val == wm->volumes[idx][ch])
+ continue;
+ if (!val)
+ data = vol->mute;
+ else
+ data = (val - 1) + vol->offset;
+ data |= vol->update;
+ changed |= wm8776_write_bits(chip->ice, wm, vol->regs[ch],
+ vol->mask | vol->update, data);
+ if (vol->mux_bits[ch])
+ wm8776_write_bits(chip->ice, wm, WM8776_REG_ADC_MUX,
+ vol->mux_bits[ch],
+ val ? 0 : vol->mux_bits[ch]);
+ wm->volumes[idx][ch] = val;
+ }
+ mutex_unlock(&chip->mutex);
+ return changed;
+}
+
+/*
+ * WM8776 switch controls
+ */
+
+#define COMPOSE_SW_VAL(idx, reg, mask) ((idx) | ((reg) << 8) | ((mask) << 16))
+#define GET_SW_VAL_IDX(val) ((val) & 0xff)
+#define GET_SW_VAL_REG(val) (((val) >> 8) & 0xff)
+#define GET_SW_VAL_MASK(val) (((val) >> 16) & 0xff)
+
+#define maya_sw_info snd_ctl_boolean_mono_info
+
+static int maya_sw_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
+ struct snd_wm8776 *wm =
+ &chip->wm[snd_ctl_get_ioff(kcontrol, &ucontrol->id)];
+ unsigned int idx = GET_SW_VAL_IDX(kcontrol->private_value);
+
+ ucontrol->value.integer.value[0] = (wm->switch_bits >> idx) & 1;
+ return 0;
+}
+
+static int maya_sw_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
+ struct snd_wm8776 *wm =
+ &chip->wm[snd_ctl_get_ioff(kcontrol, &ucontrol->id)];
+ unsigned int idx = GET_SW_VAL_IDX(kcontrol->private_value);
+ unsigned int mask, val;
+ int changed;
+
+ mutex_lock(&chip->mutex);
+ mask = 1 << idx;
+ wm->switch_bits &= ~mask;
+ val = ucontrol->value.integer.value[0];
+ if (val)
+ wm->switch_bits |= mask;
+ mask = GET_SW_VAL_MASK(kcontrol->private_value);
+ changed = wm8776_write_bits(chip->ice, wm,
+ GET_SW_VAL_REG(kcontrol->private_value),
+ mask, val ? mask : 0);
+ mutex_unlock(&chip->mutex);
+ return changed;
+}
+
+/*
+ * GPIO pins (known ones for maya44)
+ */
+#define GPIO_PHANTOM_OFF 2
+#define GPIO_MIC_RELAY 4
+#define GPIO_SPDIF_IN_INV 5
+#define GPIO_MUST_BE_0 7
+
+/*
+ * GPIO switch controls
+ */
+
+#define COMPOSE_GPIO_VAL(shift, inv) ((shift) | ((inv) << 8))
+#define GET_GPIO_VAL_SHIFT(val) ((val) & 0xff)
+#define GET_GPIO_VAL_INV(val) (((val) >> 8) & 1)
+
+static int maya_set_gpio_bits(struct snd_ice1712 *ice, unsigned int mask,
+ unsigned int bits)
+{
+ unsigned int data;
+ data = snd_ice1712_gpio_read(ice);
+ if ((data & mask) == bits)
+ return 0;
+ snd_ice1712_gpio_write(ice, (data & ~mask) | bits);
+ return 1;
+}
+
+#define maya_gpio_sw_info snd_ctl_boolean_mono_info
+
+static int maya_gpio_sw_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
+ unsigned int shift = GET_GPIO_VAL_SHIFT(kcontrol->private_value);
+ unsigned int val;
+
+ val = (snd_ice1712_gpio_read(chip->ice) >> shift) & 1;
+ if (GET_GPIO_VAL_INV(kcontrol->private_value))
+ val = !val;
+ ucontrol->value.integer.value[0] = val;
+ return 0;
+}
+
+static int maya_gpio_sw_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
+ unsigned int shift = GET_GPIO_VAL_SHIFT(kcontrol->private_value);
+ unsigned int val, mask;
+ int changed;
+
+ mutex_lock(&chip->mutex);
+ mask = 1 << shift;
+ val = ucontrol->value.integer.value[0];
+ if (GET_GPIO_VAL_INV(kcontrol->private_value))
+ val = !val;
+ val = val ? mask : 0;
+ changed = maya_set_gpio_bits(chip->ice, mask, val);
+ mutex_unlock(&chip->mutex);
+ return changed;
+}
+
+/*
+ * capture source selection
+ */
+
+/* known working input slots (0-4) */
+#define MAYA_LINE_IN 1 /* in-2 */
+#define MAYA_MIC_IN 3 /* in-4 */
+
+static void wm8776_select_input(struct snd_maya44 *chip, int idx, int line)
+{
+ wm8776_write_bits(chip->ice, &chip->wm[idx], WM8776_REG_ADC_MUX,
+ 0x1f, 1 << line);
+}
+
+static int maya_rec_src_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ static const char * const texts[] = { "Line", "Mic" };
+
+ return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
+}
+
+static int maya_rec_src_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
+ int sel;
+
+ if (snd_ice1712_gpio_read(chip->ice) & (1 << GPIO_MIC_RELAY))
+ sel = 1;
+ else
+ sel = 0;
+ ucontrol->value.enumerated.item[0] = sel;
+ return 0;
+}
+
+static int maya_rec_src_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
+ int sel = ucontrol->value.enumerated.item[0];
+ int changed;
+
+ mutex_lock(&chip->mutex);
+ changed = maya_set_gpio_bits(chip->ice, 1 << GPIO_MIC_RELAY,
+ sel ? (1 << GPIO_MIC_RELAY) : 0);
+ wm8776_select_input(chip, 0, sel ? MAYA_MIC_IN : MAYA_LINE_IN);
+ mutex_unlock(&chip->mutex);
+ return changed;
+}
+
+/*
+ * Maya44 routing switch settings have different meanings than the standard
+ * ice1724 switches as defined in snd_vt1724_pro_route_info (ice1724.c).
+ */
+static int maya_pb_route_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ static const char * const texts[] = {
+ "PCM Out", /* 0 */
+ "Input 1", "Input 2", "Input 3", "Input 4"
+ };
+
+ return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
+}
+
+static int maya_pb_route_shift(int idx)
+{
+ static const unsigned char shift[10] =
+ { 8, 20, 0, 3, 11, 23, 14, 26, 17, 29 };
+ return shift[idx % 10];
+}
+
+static int maya_pb_route_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
+ int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+ ucontrol->value.enumerated.item[0] =
+ snd_ice1724_get_route_val(chip->ice, maya_pb_route_shift(idx));
+ return 0;
+}
+
+static int maya_pb_route_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
+ int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+ return snd_ice1724_put_route_val(chip->ice,
+ ucontrol->value.enumerated.item[0],
+ maya_pb_route_shift(idx));
+}
+
+
+/*
+ * controls to be added
+ */
+
+static struct snd_kcontrol_new maya_controls[] = {
+ {
+ .name = "Crossmix Playback Volume",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
+ .info = maya_vol_info,
+ .get = maya_vol_get,
+ .put = maya_vol_put,
+ .tlv = { .p = db_scale_hp },
+ .private_value = WM_VOL_HP,
+ .count = 2,
+ },
+ {
+ .name = "PCM Playback Volume",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
+ .info = maya_vol_info,
+ .get = maya_vol_get,
+ .put = maya_vol_put,
+ .tlv = { .p = db_scale_dac },
+ .private_value = WM_VOL_DAC,
+ .count = 2,
+ },
+ {
+ .name = "Line Capture Volume",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READ,
+ .info = maya_vol_info,
+ .get = maya_vol_get,
+ .put = maya_vol_put,
+ .tlv = { .p = db_scale_adc },
+ .private_value = WM_VOL_ADC,
+ .count = 2,
+ },
+ {
+ .name = "PCM Playback Switch",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .info = maya_sw_info,
+ .get = maya_sw_get,
+ .put = maya_sw_put,
+ .private_value = COMPOSE_SW_VAL(WM_SW_DAC,
+ WM8776_REG_OUTPUT_MUX, 0x01),
+ .count = 2,
+ },
+ {
+ .name = "Bypass Playback Switch",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .info = maya_sw_info,
+ .get = maya_sw_get,
+ .put = maya_sw_put,
+ .private_value = COMPOSE_SW_VAL(WM_SW_BYPASS,
+ WM8776_REG_OUTPUT_MUX, 0x04),
+ .count = 2,
+ },
+ {
+ .name = "Capture Source",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .info = maya_rec_src_info,
+ .get = maya_rec_src_get,
+ .put = maya_rec_src_put,
+ },
+ {
+ .name = "Mic Phantom Power Switch",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .info = maya_gpio_sw_info,
+ .get = maya_gpio_sw_get,
+ .put = maya_gpio_sw_put,
+ .private_value = COMPOSE_GPIO_VAL(GPIO_PHANTOM_OFF, 1),
+ },
+ {
+ .name = "SPDIF Capture Switch",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .info = maya_gpio_sw_info,
+ .get = maya_gpio_sw_get,
+ .put = maya_gpio_sw_put,
+ .private_value = COMPOSE_GPIO_VAL(GPIO_SPDIF_IN_INV, 1),
+ },
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "H/W Playback Route",
+ .info = maya_pb_route_info,
+ .get = maya_pb_route_get,
+ .put = maya_pb_route_put,
+ .count = 4, /* FIXME: do controls 5-9 have any meaning? */
+ },
+};
+
+static int maya44_add_controls(struct snd_ice1712 *ice)
+{
+ int err, i;
+
+ for (i = 0; i < ARRAY_SIZE(maya_controls); i++) {
+ err = snd_ctl_add(ice->card, snd_ctl_new1(&maya_controls[i],
+ ice->spec));
+ if (err < 0)
+ return err;
+ }
+ return 0;
+}
+
+
+/*
+ * initialize a wm8776 chip
+ */
+static void wm8776_init(struct snd_ice1712 *ice,
+ struct snd_wm8776 *wm, unsigned int addr)
+{
+ static const unsigned short inits_wm8776[] = {
+ 0x02, 0x100, /* R2: headphone L+R muted + update */
+ 0x05, 0x100, /* R5: DAC output L+R muted + update */
+ 0x06, 0x000, /* R6: DAC output phase normal */
+ 0x07, 0x091, /* R7: DAC enable zero cross detection,
+ normal output */
+ 0x08, 0x000, /* R8: DAC soft mute off */
+ 0x09, 0x000, /* R9: no deemph, DAC zero detect disabled */
+ 0x0a, 0x022, /* R10: DAC I2C mode, std polarities, 24bit */
+ 0x0b, 0x022, /* R11: ADC I2C mode, std polarities, 24bit,
+ highpass filter enabled */
+ 0x0c, 0x042, /* R12: ADC+DAC slave, ADC+DAC 44,1kHz */
+ 0x0d, 0x000, /* R13: all power up */
+ 0x0e, 0x100, /* R14: ADC left muted,
+ enable zero cross detection */
+ 0x0f, 0x100, /* R15: ADC right muted,
+ enable zero cross detection */
+ /* R16: ALC...*/
+ 0x11, 0x000, /* R17: disable ALC */
+ /* R18: ALC...*/
+ /* R19: noise gate...*/
+ 0x15, 0x000, /* R21: ADC input mux init, mute all inputs */
+ 0x16, 0x001, /* R22: output mux, select DAC */
+ 0xff, 0xff
+ };
+
+ const unsigned short *ptr;
+ unsigned char reg;
+ unsigned short data;
+
+ wm->addr = addr;
+ /* enable DAC output; mute bypass, aux & all inputs */
+ wm->switch_bits = (1 << WM_SW_DAC);
+
+ ptr = inits_wm8776;
+ while (*ptr != 0xff) {
+ reg = *ptr++;
+ data = *ptr++;
+ wm8776_write(ice, wm, reg, data);
+ }
+}
+
+
+/*
+ * change the rate on the WM8776 codecs.
+ * this assumes that the VT17xx's rate is changed by the calling function.
+ * NOTE: even though the WM8776's are running in slave mode and rate
+ * selection is automatic, we need to call snd_wm8776_set_rate() here
+ * to make sure some flags are set correctly.
+ */
+static void set_rate(struct snd_ice1712 *ice, unsigned int rate)
+{
+ struct snd_maya44 *chip = ice->spec;
+ unsigned int ratio, adc_ratio, val;
+ int i;
+
+ switch (rate) {
+ case 192000:
+ ratio = WM8776_CLOCK_RATIO_128FS;
+ break;
+ case 176400:
+ ratio = WM8776_CLOCK_RATIO_128FS;
+ break;
+ case 96000:
+ ratio = WM8776_CLOCK_RATIO_256FS;
+ break;
+ case 88200:
+ ratio = WM8776_CLOCK_RATIO_384FS;
+ break;
+ case 48000:
+ ratio = WM8776_CLOCK_RATIO_512FS;
+ break;
+ case 44100:
+ ratio = WM8776_CLOCK_RATIO_512FS;
+ break;
+ case 32000:
+ ratio = WM8776_CLOCK_RATIO_768FS;
+ break;
+ case 0:
+ /* no hint - S/PDIF input is master, simply return */
+ return;
+ default:
+ snd_BUG();
+ return;
+ }
+
+ /*
+ * this currently sets the same rate for ADC and DAC, but limits
+ * ADC rate to 256X (96kHz). For 256X mode (96kHz), this sets ADC
+ * oversampling to 64x, as recommended by WM8776 datasheet.
+ * Setting the rate is not really necessary in slave mode.
+ */
+ adc_ratio = ratio;
+ if (adc_ratio < WM8776_CLOCK_RATIO_256FS)
+ adc_ratio = WM8776_CLOCK_RATIO_256FS;
+
+ val = adc_ratio;
+ if (adc_ratio == WM8776_CLOCK_RATIO_256FS)
+ val |= 8;
+ val |= ratio << 4;
+
+ mutex_lock(&chip->mutex);
+ for (i = 0; i < 2; i++)
+ wm8776_write_bits(ice, &chip->wm[i],
+ WM8776_REG_MASTER_MODE_CONTROL,
+ 0x180, val);
+ mutex_unlock(&chip->mutex);
+}
+
+/*
+ * supported sample rates (to override the default one)
+ */
+
+static unsigned int rates[] = {
+ 32000, 44100, 48000, 64000, 88200, 96000, 176400, 192000
+};
+
+/* playback rates: 32..192 kHz */
+static struct snd_pcm_hw_constraint_list dac_rates = {
+ .count = ARRAY_SIZE(rates),
+ .list = rates,
+ .mask = 0
+};
+
+
+/*
+ * chip addresses on I2C bus
+ */
+static unsigned char wm8776_addr[2] = {
+ 0x34, 0x36, /* codec 0 & 1 */
+};
+
+/*
+ * initialize the chip
+ */
+static int maya44_init(struct snd_ice1712 *ice)
+{
+ int i;
+ struct snd_maya44 *chip;
+
+ chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+ if (!chip)
+ return -ENOMEM;
+ mutex_init(&chip->mutex);
+ chip->ice = ice;
+ ice->spec = chip;
+
+ /* initialise codecs */
+ ice->num_total_dacs = 4;
+ ice->num_total_adcs = 4;
+ ice->akm_codecs = 0;
+
+ for (i = 0; i < 2; i++) {
+ wm8776_init(ice, &chip->wm[i], wm8776_addr[i]);
+ wm8776_select_input(chip, i, MAYA_LINE_IN);
+ }
+
+ /* set card specific rates */
+ ice->hw_rates = &dac_rates;
+
+ /* register change rate notifier */
+ ice->gpio.set_pro_rate = set_rate;
+
+ /* RDMA1 (2nd input channel) is used for ADC by default */
+ ice->force_rdma1 = 1;
+
+ /* have an own routing control */
+ ice->own_routing = 1;
+
+ return 0;
+}
+
+
+/*
+ * Maya44 boards don't provide the EEPROM data except for the vendor IDs.
+ * hence the driver needs to sets up it properly.
+ */
+
+static unsigned char maya44_eeprom[] = {
+ [ICE_EEP2_SYSCONF] = 0x45,
+ /* clock xin1=49.152MHz, mpu401, 2 stereo ADCs+DACs */
+ [ICE_EEP2_ACLINK] = 0x80,
+ /* I2S */
+ [ICE_EEP2_I2S] = 0xf8,
+ /* vol, 96k, 24bit, 192k */
+ [ICE_EEP2_SPDIF] = 0xc3,
+ /* enable spdif out, spdif out supp, spdif-in, ext spdif out */
+ [ICE_EEP2_GPIO_DIR] = 0xff,
+ [ICE_EEP2_GPIO_DIR1] = 0xff,
+ [ICE_EEP2_GPIO_DIR2] = 0xff,
+ [ICE_EEP2_GPIO_MASK] = 0/*0x9f*/,
+ [ICE_EEP2_GPIO_MASK1] = 0/*0xff*/,
+ [ICE_EEP2_GPIO_MASK2] = 0/*0x7f*/,
+ [ICE_EEP2_GPIO_STATE] = (1 << GPIO_PHANTOM_OFF) |
+ (1 << GPIO_SPDIF_IN_INV),
+ [ICE_EEP2_GPIO_STATE1] = 0x00,
+ [ICE_EEP2_GPIO_STATE2] = 0x00,
+};
+
+/* entry point */
+struct snd_ice1712_card_info snd_vt1724_maya44_cards[] = {
+ {
+ .subvendor = VT1724_SUBDEVICE_MAYA44,
+ .name = "ESI Maya44",
+ .model = "maya44",
+ .chip_init = maya44_init,
+ .build_controls = maya44_add_controls,
+ .eeprom_size = sizeof(maya44_eeprom),
+ .eeprom_data = maya44_eeprom,
+ },
+ { } /* terminator */
+};
Code Review / kvmfornfv.git / blobdiff