--- /dev/null
+/*
+ * ALSA driver for ICEnsemble VT1724 (Envy24HT)
+ *
+ * Lowlevel functions for Infrasonic Quartet
+ *
+ * Copyright (c) 2009 Pavel Hofman <pavel.hofman@ivitera.com>
+ *
+ *
+ * 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 <asm/io.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/tlv.h>
+#include <sound/info.h>
+
+#include "ice1712.h"
+#include "envy24ht.h"
+#include <sound/ak4113.h>
+#include "quartet.h"
+
+struct qtet_spec {
+ struct ak4113 *ak4113;
+ unsigned int scr; /* system control register */
+ unsigned int mcr; /* monitoring control register */
+ unsigned int cpld; /* cpld register */
+};
+
+struct qtet_kcontrol_private {
+ unsigned int bit;
+ void (*set_register)(struct snd_ice1712 *ice, unsigned int val);
+ unsigned int (*get_register)(struct snd_ice1712 *ice);
+ unsigned char *texts[2];
+};
+
+enum {
+ IN12_SEL = 0,
+ IN34_SEL,
+ AIN34_SEL,
+ COAX_OUT,
+ IN12_MON12,
+ IN12_MON34,
+ IN34_MON12,
+ IN34_MON34,
+ OUT12_MON34,
+ OUT34_MON12,
+};
+
+static char *ext_clock_names[3] = {"IEC958 In", "Word Clock 1xFS",
+ "Word Clock 256xFS"};
+
+/* chip address on I2C bus */
+#define AK4113_ADDR 0x26 /* S/PDIF receiver */
+
+/* chip address on SPI bus */
+#define AK4620_ADDR 0x02 /* ADC/DAC */
+
+
+/*
+ * GPIO pins
+ */
+
+/* GPIO0 - O - DATA0, def. 0 */
+#define GPIO_D0 (1<<0)
+/* GPIO1 - I/O - DATA1, Jack Detect Input0 (0:present, 1:missing), def. 1 */
+#define GPIO_D1_JACKDTC0 (1<<1)
+/* GPIO2 - I/O - DATA2, Jack Detect Input1 (0:present, 1:missing), def. 1 */
+#define GPIO_D2_JACKDTC1 (1<<2)
+/* GPIO3 - I/O - DATA3, def. 1 */
+#define GPIO_D3 (1<<3)
+/* GPIO4 - I/O - DATA4, SPI CDTO, def. 1 */
+#define GPIO_D4_SPI_CDTO (1<<4)
+/* GPIO5 - I/O - DATA5, SPI CCLK, def. 1 */
+#define GPIO_D5_SPI_CCLK (1<<5)
+/* GPIO6 - I/O - DATA6, Cable Detect Input (0:detected, 1:not detected */
+#define GPIO_D6_CD (1<<6)
+/* GPIO7 - I/O - DATA7, Device Detect Input (0:detected, 1:not detected */
+#define GPIO_D7_DD (1<<7)
+/* GPIO8 - O - CPLD Chip Select, def. 1 */
+#define GPIO_CPLD_CSN (1<<8)
+/* GPIO9 - O - CPLD register read/write (0:write, 1:read), def. 0 */
+#define GPIO_CPLD_RW (1<<9)
+/* GPIO10 - O - SPI Chip Select for CODEC#0, def. 1 */
+#define GPIO_SPI_CSN0 (1<<10)
+/* GPIO11 - O - SPI Chip Select for CODEC#1, def. 1 */
+#define GPIO_SPI_CSN1 (1<<11)
+/* GPIO12 - O - Ex. Register Output Enable (0:enable, 1:disable), def. 1,
+ * init 0 */
+#define GPIO_EX_GPIOE (1<<12)
+/* GPIO13 - O - Ex. Register0 Chip Select for System Control Register,
+ * def. 1 */
+#define GPIO_SCR (1<<13)
+/* GPIO14 - O - Ex. Register1 Chip Select for Monitor Control Register,
+ * def. 1 */
+#define GPIO_MCR (1<<14)
+
+#define GPIO_SPI_ALL (GPIO_D4_SPI_CDTO | GPIO_D5_SPI_CCLK |\
+ GPIO_SPI_CSN0 | GPIO_SPI_CSN1)
+
+#define GPIO_DATA_MASK (GPIO_D0 | GPIO_D1_JACKDTC0 | \
+ GPIO_D2_JACKDTC1 | GPIO_D3 | \
+ GPIO_D4_SPI_CDTO | GPIO_D5_SPI_CCLK | \
+ GPIO_D6_CD | GPIO_D7_DD)
+
+/* System Control Register GPIO_SCR data bits */
+/* Mic/Line select relay (0:line, 1:mic) */
+#define SCR_RELAY GPIO_D0
+/* Phantom power drive control (0:5V, 1:48V) */
+#define SCR_PHP_V GPIO_D1_JACKDTC0
+/* H/W mute control (0:Normal, 1:Mute) */
+#define SCR_MUTE GPIO_D2_JACKDTC1
+/* Phantom power control (0:Phantom on, 1:off) */
+#define SCR_PHP GPIO_D3
+/* Analog input 1/2 Source Select */
+#define SCR_AIN12_SEL0 GPIO_D4_SPI_CDTO
+#define SCR_AIN12_SEL1 GPIO_D5_SPI_CCLK
+/* Analog input 3/4 Source Select (0:line, 1:hi-z) */
+#define SCR_AIN34_SEL GPIO_D6_CD
+/* Codec Power Down (0:power down, 1:normal) */
+#define SCR_CODEC_PDN GPIO_D7_DD
+
+#define SCR_AIN12_LINE (0)
+#define SCR_AIN12_MIC (SCR_AIN12_SEL0)
+#define SCR_AIN12_LOWCUT (SCR_AIN12_SEL1 | SCR_AIN12_SEL0)
+
+/* Monitor Control Register GPIO_MCR data bits */
+/* Input 1/2 to Monitor 1/2 (0:off, 1:on) */
+#define MCR_IN12_MON12 GPIO_D0
+/* Input 1/2 to Monitor 3/4 (0:off, 1:on) */
+#define MCR_IN12_MON34 GPIO_D1_JACKDTC0
+/* Input 3/4 to Monitor 1/2 (0:off, 1:on) */
+#define MCR_IN34_MON12 GPIO_D2_JACKDTC1
+/* Input 3/4 to Monitor 3/4 (0:off, 1:on) */
+#define MCR_IN34_MON34 GPIO_D3
+/* Output to Monitor 1/2 (0:off, 1:on) */
+#define MCR_OUT34_MON12 GPIO_D4_SPI_CDTO
+/* Output to Monitor 3/4 (0:off, 1:on) */
+#define MCR_OUT12_MON34 GPIO_D5_SPI_CCLK
+
+/* CPLD Register DATA bits */
+/* Clock Rate Select */
+#define CPLD_CKS0 GPIO_D0
+#define CPLD_CKS1 GPIO_D1_JACKDTC0
+#define CPLD_CKS2 GPIO_D2_JACKDTC1
+/* Sync Source Select (0:Internal, 1:External) */
+#define CPLD_SYNC_SEL GPIO_D3
+/* Word Clock FS Select (0:FS, 1:256FS) */
+#define CPLD_WORD_SEL GPIO_D4_SPI_CDTO
+/* Coaxial Output Source (IS-Link) (0:SPDIF, 1:I2S) */
+#define CPLD_COAX_OUT GPIO_D5_SPI_CCLK
+/* Input 1/2 Source Select (0:Analog12, 1:An34) */
+#define CPLD_IN12_SEL GPIO_D6_CD
+/* Input 3/4 Source Select (0:Analog34, 1:Digital In) */
+#define CPLD_IN34_SEL GPIO_D7_DD
+
+/* internal clock (CPLD_SYNC_SEL = 0) options */
+#define CPLD_CKS_44100HZ (0)
+#define CPLD_CKS_48000HZ (CPLD_CKS0)
+#define CPLD_CKS_88200HZ (CPLD_CKS1)
+#define CPLD_CKS_96000HZ (CPLD_CKS1 | CPLD_CKS0)
+#define CPLD_CKS_176400HZ (CPLD_CKS2)
+#define CPLD_CKS_192000HZ (CPLD_CKS2 | CPLD_CKS0)
+
+#define CPLD_CKS_MASK (CPLD_CKS0 | CPLD_CKS1 | CPLD_CKS2)
+
+/* external clock (CPLD_SYNC_SEL = 1) options */
+/* external clock - SPDIF */
+#define CPLD_EXT_SPDIF (0 | CPLD_SYNC_SEL)
+/* external clock - WordClock 1xfs */
+#define CPLD_EXT_WORDCLOCK_1FS (CPLD_CKS1 | CPLD_SYNC_SEL)
+/* external clock - WordClock 256xfs */
+#define CPLD_EXT_WORDCLOCK_256FS (CPLD_CKS1 | CPLD_WORD_SEL |\
+ CPLD_SYNC_SEL)
+
+#define EXT_SPDIF_TYPE 0
+#define EXT_WORDCLOCK_1FS_TYPE 1
+#define EXT_WORDCLOCK_256FS_TYPE 2
+
+#define AK4620_DFS0 (1<<0)
+#define AK4620_DFS1 (1<<1)
+#define AK4620_CKS0 (1<<2)
+#define AK4620_CKS1 (1<<3)
+/* Clock and Format Control register */
+#define AK4620_DFS_REG 0x02
+
+/* Deem and Volume Control register */
+#define AK4620_DEEMVOL_REG 0x03
+#define AK4620_SMUTE (1<<7)
+
+/*
+ * Conversion from int value to its binary form. Used for debugging.
+ * The output buffer must be allocated prior to calling the function.
+ */
+static char *get_binary(char *buffer, int value)
+{
+ int i, j, pos;
+ pos = 0;
+ for (i = 0; i < 4; ++i) {
+ for (j = 0; j < 8; ++j) {
+ if (value & (1 << (31-(i*8 + j))))
+ buffer[pos] = '1';
+ else
+ buffer[pos] = '0';
+ pos++;
+ }
+ if (i < 3) {
+ buffer[pos] = ' ';
+ pos++;
+ }
+ }
+ buffer[pos] = '\0';
+ return buffer;
+}
+
+/*
+ * Initial setup of the conversion array GPIO <-> rate
+ */
+static unsigned int qtet_rates[] = {
+ 44100, 48000, 88200,
+ 96000, 176400, 192000,
+};
+
+static unsigned int cks_vals[] = {
+ CPLD_CKS_44100HZ, CPLD_CKS_48000HZ, CPLD_CKS_88200HZ,
+ CPLD_CKS_96000HZ, CPLD_CKS_176400HZ, CPLD_CKS_192000HZ,
+};
+
+static struct snd_pcm_hw_constraint_list qtet_rates_info = {
+ .count = ARRAY_SIZE(qtet_rates),
+ .list = qtet_rates,
+ .mask = 0,
+};
+
+static void qtet_ak4113_write(void *private_data, unsigned char reg,
+ unsigned char val)
+{
+ snd_vt1724_write_i2c((struct snd_ice1712 *)private_data, AK4113_ADDR,
+ reg, val);
+}
+
+static unsigned char qtet_ak4113_read(void *private_data, unsigned char reg)
+{
+ return snd_vt1724_read_i2c((struct snd_ice1712 *)private_data,
+ AK4113_ADDR, reg);
+}
+
+
+/*
+ * AK4620 section
+ */
+
+/*
+ * Write data to addr register of ak4620
+ */
+static void qtet_akm_write(struct snd_akm4xxx *ak, int chip,
+ unsigned char addr, unsigned char data)
+{
+ unsigned int tmp, orig_dir;
+ int idx;
+ unsigned int addrdata;
+ struct snd_ice1712 *ice = ak->private_data[0];
+
+ if (snd_BUG_ON(chip < 0 || chip >= 4))
+ return;
+ /*printk(KERN_DEBUG "Writing to AK4620: chip=%d, addr=0x%x,
+ data=0x%x\n", chip, addr, data);*/
+ orig_dir = ice->gpio.get_dir(ice);
+ ice->gpio.set_dir(ice, orig_dir | GPIO_SPI_ALL);
+ /* set mask - only SPI bits */
+ ice->gpio.set_mask(ice, ~GPIO_SPI_ALL);
+
+ tmp = ice->gpio.get_data(ice);
+ /* high all */
+ tmp |= GPIO_SPI_ALL;
+ ice->gpio.set_data(ice, tmp);
+ udelay(100);
+ /* drop chip select */
+ if (chip)
+ /* CODEC 1 */
+ tmp &= ~GPIO_SPI_CSN1;
+ else
+ tmp &= ~GPIO_SPI_CSN0;
+ ice->gpio.set_data(ice, tmp);
+ udelay(100);
+
+ /* build I2C address + data byte */
+ addrdata = (AK4620_ADDR << 6) | 0x20 | (addr & 0x1f);
+ addrdata = (addrdata << 8) | data;
+ for (idx = 15; idx >= 0; idx--) {
+ /* drop clock */
+ tmp &= ~GPIO_D5_SPI_CCLK;
+ ice->gpio.set_data(ice, tmp);
+ udelay(100);
+ /* set data */
+ if (addrdata & (1 << idx))
+ tmp |= GPIO_D4_SPI_CDTO;
+ else
+ tmp &= ~GPIO_D4_SPI_CDTO;
+ ice->gpio.set_data(ice, tmp);
+ udelay(100);
+ /* raise clock */
+ tmp |= GPIO_D5_SPI_CCLK;
+ ice->gpio.set_data(ice, tmp);
+ udelay(100);
+ }
+ /* all back to 1 */
+ tmp |= GPIO_SPI_ALL;
+ ice->gpio.set_data(ice, tmp);
+ udelay(100);
+
+ /* return all gpios to non-writable */
+ ice->gpio.set_mask(ice, 0xffffff);
+ /* restore GPIOs direction */
+ ice->gpio.set_dir(ice, orig_dir);
+}
+
+static void qtet_akm_set_regs(struct snd_akm4xxx *ak, unsigned char addr,
+ unsigned char mask, unsigned char value)
+{
+ unsigned char tmp;
+ int chip;
+ for (chip = 0; chip < ak->num_chips; chip++) {
+ tmp = snd_akm4xxx_get(ak, chip, addr);
+ /* clear the bits */
+ tmp &= ~mask;
+ /* set the new bits */
+ tmp |= value;
+ snd_akm4xxx_write(ak, chip, addr, tmp);
+ }
+}
+
+/*
+ * change the rate of AK4620
+ */
+static void qtet_akm_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
+{
+ unsigned char ak4620_dfs;
+
+ if (rate == 0) /* no hint - S/PDIF input is master or the new spdif
+ input rate undetected, simply return */
+ return;
+
+ /* adjust DFS on codecs - see datasheet */
+ if (rate > 108000)
+ ak4620_dfs = AK4620_DFS1 | AK4620_CKS1;
+ else if (rate > 54000)
+ ak4620_dfs = AK4620_DFS0 | AK4620_CKS0;
+ else
+ ak4620_dfs = 0;
+
+ /* set new value */
+ qtet_akm_set_regs(ak, AK4620_DFS_REG, AK4620_DFS0 | AK4620_DFS1 |
+ AK4620_CKS0 | AK4620_CKS1, ak4620_dfs);
+}
+
+#define AK_CONTROL(xname, xch) { .name = xname, .num_channels = xch }
+
+#define PCM_12_PLAYBACK_VOLUME "PCM 1/2 Playback Volume"
+#define PCM_34_PLAYBACK_VOLUME "PCM 3/4 Playback Volume"
+#define PCM_12_CAPTURE_VOLUME "PCM 1/2 Capture Volume"
+#define PCM_34_CAPTURE_VOLUME "PCM 3/4 Capture Volume"
+
+static const struct snd_akm4xxx_dac_channel qtet_dac[] = {
+ AK_CONTROL(PCM_12_PLAYBACK_VOLUME, 2),
+ AK_CONTROL(PCM_34_PLAYBACK_VOLUME, 2),
+};
+
+static const struct snd_akm4xxx_adc_channel qtet_adc[] = {
+ AK_CONTROL(PCM_12_CAPTURE_VOLUME, 2),
+ AK_CONTROL(PCM_34_CAPTURE_VOLUME, 2),
+};
+
+static struct snd_akm4xxx akm_qtet_dac __devinitdata = {
+ .type = SND_AK4620,
+ .num_dacs = 4, /* DAC1 - Output 12
+ */
+ .num_adcs = 4, /* ADC1 - Input 12
+ */
+ .ops = {
+ .write = qtet_akm_write,
+ .set_rate_val = qtet_akm_set_rate_val,
+ },
+ .dac_info = qtet_dac,
+ .adc_info = qtet_adc,
+};
+
+/* Communication routines with the CPLD */
+
+
+/* Writes data to external register reg, both reg and data are
+ * GPIO representations */
+static void reg_write(struct snd_ice1712 *ice, unsigned int reg,
+ unsigned int data)
+{
+ unsigned int tmp;
+
+ mutex_lock(&ice->gpio_mutex);
+ /* set direction of used GPIOs*/
+ /* all outputs */
+ tmp = 0x00ffff;
+ ice->gpio.set_dir(ice, tmp);
+ /* mask - writable bits */
+ ice->gpio.set_mask(ice, ~(tmp));
+ /* write the data */
+ tmp = ice->gpio.get_data(ice);
+ tmp &= ~GPIO_DATA_MASK;
+ tmp |= data;
+ ice->gpio.set_data(ice, tmp);
+ udelay(100);
+ /* drop output enable */
+ tmp &= ~GPIO_EX_GPIOE;
+ ice->gpio.set_data(ice, tmp);
+ udelay(100);
+ /* drop the register gpio */
+ tmp &= ~reg;
+ ice->gpio.set_data(ice, tmp);
+ udelay(100);
+ /* raise the register GPIO */
+ tmp |= reg;
+ ice->gpio.set_data(ice, tmp);
+ udelay(100);
+
+ /* raise all data gpios */
+ tmp |= GPIO_DATA_MASK;
+ ice->gpio.set_data(ice, tmp);
+ /* mask - immutable bits */
+ ice->gpio.set_mask(ice, 0xffffff);
+ /* outputs only 8-15 */
+ ice->gpio.set_dir(ice, 0x00ff00);
+ mutex_unlock(&ice->gpio_mutex);
+}
+
+static unsigned int get_scr(struct snd_ice1712 *ice)
+{
+ struct qtet_spec *spec = ice->spec;
+ return spec->scr;
+}
+
+static unsigned int get_mcr(struct snd_ice1712 *ice)
+{
+ struct qtet_spec *spec = ice->spec;
+ return spec->mcr;
+}
+
+static unsigned int get_cpld(struct snd_ice1712 *ice)
+{
+ struct qtet_spec *spec = ice->spec;
+ return spec->cpld;
+}
+
+static void set_scr(struct snd_ice1712 *ice, unsigned int val)
+{
+ struct qtet_spec *spec = ice->spec;
+ reg_write(ice, GPIO_SCR, val);
+ spec->scr = val;
+}
+
+static void set_mcr(struct snd_ice1712 *ice, unsigned int val)
+{
+ struct qtet_spec *spec = ice->spec;
+ reg_write(ice, GPIO_MCR, val);
+ spec->mcr = val;
+}
+
+static void set_cpld(struct snd_ice1712 *ice, unsigned int val)
+{
+ struct qtet_spec *spec = ice->spec;
+ reg_write(ice, GPIO_CPLD_CSN, val);
+ spec->cpld = val;
+}
+#ifdef CONFIG_PROC_FS
+static void proc_regs_read(struct snd_info_entry *entry,
+ struct snd_info_buffer *buffer)
+{
+ struct snd_ice1712 *ice = entry->private_data;
+ char bin_buffer[36];
+
+ snd_iprintf(buffer, "SCR: %s\n", get_binary(bin_buffer,
+ get_scr(ice)));
+ snd_iprintf(buffer, "MCR: %s\n", get_binary(bin_buffer,
+ get_mcr(ice)));
+ snd_iprintf(buffer, "CPLD: %s\n", get_binary(bin_buffer,
+ get_cpld(ice)));
+}
+
+static void proc_init(struct snd_ice1712 *ice)
+{
+ struct snd_info_entry *entry;
+ if (!snd_card_proc_new(ice->card, "quartet", &entry))
+ snd_info_set_text_ops(entry, ice, proc_regs_read);
+}
+#else /* !CONFIG_PROC_FS */
+static void proc_init(struct snd_ice1712 *ice) {}
+#endif
+
+static int qtet_mute_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+ unsigned int val;
+ val = get_scr(ice) & SCR_MUTE;
+ ucontrol->value.integer.value[0] = (val) ? 0 : 1;
+ return 0;
+}
+
+static int qtet_mute_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+ unsigned int old, new, smute;
+ old = get_scr(ice) & SCR_MUTE;
+ if (ucontrol->value.integer.value[0]) {
+ /* unmute */
+ new = 0;
+ /* un-smuting DAC */
+ smute = 0;
+ } else {
+ /* mute */
+ new = SCR_MUTE;
+ /* smuting DAC */
+ smute = AK4620_SMUTE;
+ }
+ if (old != new) {
+ struct snd_akm4xxx *ak = ice->akm;
+ set_scr(ice, (get_scr(ice) & ~SCR_MUTE) | new);
+ /* set smute */
+ qtet_akm_set_regs(ak, AK4620_DEEMVOL_REG, AK4620_SMUTE, smute);
+ return 1;
+ }
+ /* no change */
+ return 0;
+}
+
+static int qtet_ain12_enum_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ static char *texts[3] = {"Line In 1/2", "Mic", "Mic + Low-cut"};
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ uinfo->count = 1;
+ uinfo->value.enumerated.items = ARRAY_SIZE(texts);
+
+ 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 qtet_ain12_sw_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+ unsigned int val, result;
+ val = get_scr(ice) & (SCR_AIN12_SEL1 | SCR_AIN12_SEL0);
+ switch (val) {
+ case SCR_AIN12_LINE:
+ result = 0;
+ break;
+ case SCR_AIN12_MIC:
+ result = 1;
+ break;
+ case SCR_AIN12_LOWCUT:
+ result = 2;
+ break;
+ default:
+ /* BUG - no other combinations allowed */
+ snd_BUG();
+ result = 0;
+ }
+ ucontrol->value.integer.value[0] = result;
+ return 0;
+}
+
+static int qtet_ain12_sw_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+ unsigned int old, new, tmp, masked_old;
+ old = new = get_scr(ice);
+ masked_old = old & (SCR_AIN12_SEL1 | SCR_AIN12_SEL0);
+ tmp = ucontrol->value.integer.value[0];
+ if (tmp == 2)
+ tmp = 3; /* binary 10 is not supported */
+ tmp <<= 4; /* shifting to SCR_AIN12_SEL0 */
+ if (tmp != masked_old) {
+ /* change requested */
+ switch (tmp) {
+ case SCR_AIN12_LINE:
+ new = old & ~(SCR_AIN12_SEL1 | SCR_AIN12_SEL0);
+ set_scr(ice, new);
+ /* turn off relay */
+ new &= ~SCR_RELAY;
+ set_scr(ice, new);
+ break;
+ case SCR_AIN12_MIC:
+ /* turn on relay */
+ new = old | SCR_RELAY;
+ set_scr(ice, new);
+ new = (new & ~SCR_AIN12_SEL1) | SCR_AIN12_SEL0;
+ set_scr(ice, new);
+ break;
+ case SCR_AIN12_LOWCUT:
+ /* turn on relay */
+ new = old | SCR_RELAY;
+ set_scr(ice, new);
+ new |= SCR_AIN12_SEL1 | SCR_AIN12_SEL0;
+ set_scr(ice, new);
+ break;
+ default:
+ snd_BUG();
+ }
+ return 1;
+ }
+ /* no change */
+ return 0;
+}
+
+static int qtet_php_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+ unsigned int val;
+ /* if phantom voltage =48V, phantom on */
+ val = get_scr(ice) & SCR_PHP_V;
+ ucontrol->value.integer.value[0] = val ? 1 : 0;
+ return 0;
+}
+
+static int qtet_php_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+ unsigned int old, new;
+ old = new = get_scr(ice);
+ if (ucontrol->value.integer.value[0] /* phantom on requested */
+ && (~old & SCR_PHP_V)) /* 0 = voltage 5V */ {
+ /* is off, turn on */
+ /* turn voltage on first, = 1 */
+ new = old | SCR_PHP_V;
+ set_scr(ice, new);
+ /* turn phantom on, = 0 */
+ new &= ~SCR_PHP;
+ set_scr(ice, new);
+ } else if (!ucontrol->value.integer.value[0] && (old & SCR_PHP_V)) {
+ /* phantom off requested and 1 = voltage 48V */
+ /* is on, turn off */
+ /* turn voltage off first, = 0 */
+ new = old & ~SCR_PHP_V;
+ set_scr(ice, new);
+ /* turn phantom off, = 1 */
+ new |= SCR_PHP;
+ set_scr(ice, new);
+ }
+ if (old != new)
+ return 1;
+ /* no change */
+ return 0;
+}
+
+#define PRIV_SW(xid, xbit, xreg) [xid] = {.bit = xbit,\
+ .set_register = set_##xreg,\
+ .get_register = get_##xreg, }
+
+
+#define PRIV_ENUM2(xid, xbit, xreg, xtext1, xtext2) [xid] = {.bit = xbit,\
+ .set_register = set_##xreg,\
+ .get_register = get_##xreg,\
+ .texts = {xtext1, xtext2} }
+
+static struct qtet_kcontrol_private qtet_privates[] = {
+ PRIV_ENUM2(IN12_SEL, CPLD_IN12_SEL, cpld, "An In 1/2", "An In 3/4"),
+ PRIV_ENUM2(IN34_SEL, CPLD_IN34_SEL, cpld, "An In 3/4", "IEC958 In"),
+ PRIV_ENUM2(AIN34_SEL, SCR_AIN34_SEL, scr, "Line In 3/4", "Hi-Z"),
+ PRIV_ENUM2(COAX_OUT, CPLD_COAX_OUT, cpld, "IEC958", "I2S"),
+ PRIV_SW(IN12_MON12, MCR_IN12_MON12, mcr),
+ PRIV_SW(IN12_MON34, MCR_IN12_MON34, mcr),
+ PRIV_SW(IN34_MON12, MCR_IN34_MON12, mcr),
+ PRIV_SW(IN34_MON34, MCR_IN34_MON34, mcr),
+ PRIV_SW(OUT12_MON34, MCR_OUT12_MON34, mcr),
+ PRIV_SW(OUT34_MON12, MCR_OUT34_MON12, mcr),
+};
+
+static int qtet_enum_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct qtet_kcontrol_private private =
+ qtet_privates[kcontrol->private_value];
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ uinfo->count = 1;
+ uinfo->value.enumerated.items = ARRAY_SIZE(private.texts);
+
+ if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
+ uinfo->value.enumerated.item =
+ uinfo->value.enumerated.items - 1;
+ strcpy(uinfo->value.enumerated.name,
+ private.texts[uinfo->value.enumerated.item]);
+
+ return 0;
+}
+
+static int qtet_sw_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct qtet_kcontrol_private private =
+ qtet_privates[kcontrol->private_value];
+ struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+ ucontrol->value.integer.value[0] =
+ (private.get_register(ice) & private.bit) ? 1 : 0;
+ return 0;
+}
+
+static int qtet_sw_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct qtet_kcontrol_private private =
+ qtet_privates[kcontrol->private_value];
+ struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+ unsigned int old, new;
+ old = private.get_register(ice);
+ if (ucontrol->value.integer.value[0])
+ new = old | private.bit;
+ else
+ new = old & ~private.bit;
+ if (old != new) {
+ private.set_register(ice, new);
+ return 1;
+ }
+ /* no change */
+ return 0;
+}
+
+#define qtet_sw_info snd_ctl_boolean_mono_info
+
+#define QTET_CONTROL(xname, xtype, xpriv) \
+ {.iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
+ .name = xname,\
+ .info = qtet_##xtype##_info,\
+ .get = qtet_sw_get,\
+ .put = qtet_sw_put,\
+ .private_value = xpriv }
+
+static struct snd_kcontrol_new qtet_controls[] __devinitdata = {
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Master Playback Switch",
+ .info = qtet_sw_info,
+ .get = qtet_mute_get,
+ .put = qtet_mute_put,
+ .private_value = 0
+ },
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Phantom Power",
+ .info = qtet_sw_info,
+ .get = qtet_php_get,
+ .put = qtet_php_put,
+ .private_value = 0
+ },
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Analog In 1/2 Capture Switch",
+ .info = qtet_ain12_enum_info,
+ .get = qtet_ain12_sw_get,
+ .put = qtet_ain12_sw_put,
+ .private_value = 0
+ },
+ QTET_CONTROL("Analog In 3/4 Capture Switch", enum, AIN34_SEL),
+ QTET_CONTROL("PCM In 1/2 Capture Switch", enum, IN12_SEL),
+ QTET_CONTROL("PCM In 3/4 Capture Switch", enum, IN34_SEL),
+ QTET_CONTROL("Coax Output Source", enum, COAX_OUT),
+ QTET_CONTROL("Analog In 1/2 to Monitor 1/2", sw, IN12_MON12),
+ QTET_CONTROL("Analog In 1/2 to Monitor 3/4", sw, IN12_MON34),
+ QTET_CONTROL("Analog In 3/4 to Monitor 1/2", sw, IN34_MON12),
+ QTET_CONTROL("Analog In 3/4 to Monitor 3/4", sw, IN34_MON34),
+ QTET_CONTROL("Output 1/2 to Monitor 3/4", sw, OUT12_MON34),
+ QTET_CONTROL("Output 3/4 to Monitor 1/2", sw, OUT34_MON12),
+};
+
+static char *slave_vols[] __devinitdata = {
+ PCM_12_PLAYBACK_VOLUME,
+ PCM_34_PLAYBACK_VOLUME,
+ NULL
+};
+
+static __devinitdata
+DECLARE_TLV_DB_SCALE(qtet_master_db_scale, -6350, 50, 1);
+
+static struct snd_kcontrol __devinit *ctl_find(struct snd_card *card,
+ const char *name)
+{
+ struct snd_ctl_elem_id sid;
+ memset(&sid, 0, sizeof(sid));
+ /* FIXME: strcpy is bad. */
+ strcpy(sid.name, name);
+ sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+ return snd_ctl_find_id(card, &sid);
+}
+
+static void __devinit add_slaves(struct snd_card *card,
+ struct snd_kcontrol *master, char **list)
+{
+ for (; *list; list++) {
+ struct snd_kcontrol *slave = ctl_find(card, *list);
+ if (slave)
+ snd_ctl_add_slave(master, slave);
+ }
+}
+
+static int __devinit qtet_add_controls(struct snd_ice1712 *ice)
+{
+ struct qtet_spec *spec = ice->spec;
+ int err, i;
+ struct snd_kcontrol *vmaster;
+ err = snd_ice1712_akm4xxx_build_controls(ice);
+ if (err < 0)
+ return err;
+ for (i = 0; i < ARRAY_SIZE(qtet_controls); i++) {
+ err = snd_ctl_add(ice->card,
+ snd_ctl_new1(&qtet_controls[i], ice));
+ if (err < 0)
+ return err;
+ }
+
+ /* Create virtual master control */
+ vmaster = snd_ctl_make_virtual_master("Master Playback Volume",
+ qtet_master_db_scale);
+ if (!vmaster)
+ return -ENOMEM;
+ add_slaves(ice->card, vmaster, slave_vols);
+ err = snd_ctl_add(ice->card, vmaster);
+ if (err < 0)
+ return err;
+ /* only capture SPDIF over AK4113 */
+ err = snd_ak4113_build(spec->ak4113,
+ ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
+ if (err < 0)
+ return err;
+ return 0;
+}
+
+static inline int qtet_is_spdif_master(struct snd_ice1712 *ice)
+{
+ /* CPLD_SYNC_SEL: 0 = internal, 1 = external (i.e. spdif master) */
+ return (get_cpld(ice) & CPLD_SYNC_SEL) ? 1 : 0;
+}
+
+static unsigned int qtet_get_rate(struct snd_ice1712 *ice)
+{
+ int i;
+ unsigned char result;
+
+ result = get_cpld(ice) & CPLD_CKS_MASK;
+ for (i = 0; i < ARRAY_SIZE(cks_vals); i++)
+ if (cks_vals[i] == result)
+ return qtet_rates[i];
+ return 0;
+}
+
+static int get_cks_val(int rate)
+{
+ int i;
+ for (i = 0; i < ARRAY_SIZE(qtet_rates); i++)
+ if (qtet_rates[i] == rate)
+ return cks_vals[i];
+ return 0;
+}
+
+/* setting new rate */
+static void qtet_set_rate(struct snd_ice1712 *ice, unsigned int rate)
+{
+ unsigned int new;
+ unsigned char val;
+ /* switching ice1724 to external clock - supplied by ext. circuits */
+ val = inb(ICEMT1724(ice, RATE));
+ outb(val | VT1724_SPDIF_MASTER, ICEMT1724(ice, RATE));
+
+ new = (get_cpld(ice) & ~CPLD_CKS_MASK) | get_cks_val(rate);
+ /* switch to internal clock, drop CPLD_SYNC_SEL */
+ new &= ~CPLD_SYNC_SEL;
+ /* printk(KERN_DEBUG "QT - set_rate: old %x, new %x\n",
+ get_cpld(ice), new); */
+ set_cpld(ice, new);
+}
+
+static inline unsigned char qtet_set_mclk(struct snd_ice1712 *ice,
+ unsigned int rate)
+{
+ /* no change in master clock */
+ return 0;
+}
+
+/* setting clock to external - SPDIF */
+static int qtet_set_spdif_clock(struct snd_ice1712 *ice, int type)
+{
+ unsigned int old, new;
+
+ old = new = get_cpld(ice);
+ new &= ~(CPLD_CKS_MASK | CPLD_WORD_SEL);
+ switch (type) {
+ case EXT_SPDIF_TYPE:
+ new |= CPLD_EXT_SPDIF;
+ break;
+ case EXT_WORDCLOCK_1FS_TYPE:
+ new |= CPLD_EXT_WORDCLOCK_1FS;
+ break;
+ case EXT_WORDCLOCK_256FS_TYPE:
+ new |= CPLD_EXT_WORDCLOCK_256FS;
+ break;
+ default:
+ snd_BUG();
+ }
+ if (old != new) {
+ set_cpld(ice, new);
+ /* changed */
+ return 1;
+ }
+ return 0;
+}
+
+static int qtet_get_spdif_master_type(struct snd_ice1712 *ice)
+{
+ unsigned int val;
+ int result;
+ val = get_cpld(ice);
+ /* checking only rate/clock-related bits */
+ val &= (CPLD_CKS_MASK | CPLD_WORD_SEL | CPLD_SYNC_SEL);
+ if (!(val & CPLD_SYNC_SEL)) {
+ /* switched to internal clock, is not any external type */
+ result = -1;
+ } else {
+ switch (val) {
+ case (CPLD_EXT_SPDIF):
+ result = EXT_SPDIF_TYPE;
+ break;
+ case (CPLD_EXT_WORDCLOCK_1FS):
+ result = EXT_WORDCLOCK_1FS_TYPE;
+ break;
+ case (CPLD_EXT_WORDCLOCK_256FS):
+ result = EXT_WORDCLOCK_256FS_TYPE;
+ break;
+ default:
+ /* undefined combination of external clock setup */
+ snd_BUG();
+ result = 0;
+ }
+ }
+ return result;
+}
+
+/* Called when ak4113 detects change in the input SPDIF stream */
+static void qtet_ak4113_change(struct ak4113 *ak4113, unsigned char c0,
+ unsigned char c1)
+{
+ struct snd_ice1712 *ice = ak4113->change_callback_private;
+ int rate;
+ if ((qtet_get_spdif_master_type(ice) == EXT_SPDIF_TYPE) &&
+ c1) {
+ /* only for SPDIF master mode, rate was changed */
+ rate = snd_ak4113_external_rate(ak4113);
+ /* printk(KERN_DEBUG "ak4113 - input rate changed to %d\n",
+ rate); */
+ qtet_akm_set_rate_val(ice->akm, rate);
+ }
+}
+
+/*
+ * If clock slaved to SPDIF-IN, setting runtime rate
+ * to the detected external rate
+ */
+static void qtet_spdif_in_open(struct snd_ice1712 *ice,
+ struct snd_pcm_substream *substream)
+{
+ struct qtet_spec *spec = ice->spec;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int rate;
+
+ if (qtet_get_spdif_master_type(ice) != EXT_SPDIF_TYPE)
+ /* not external SPDIF, no rate limitation */
+ return;
+ /* only external SPDIF can detect incoming sample rate */
+ rate = snd_ak4113_external_rate(spec->ak4113);
+ if (rate >= runtime->hw.rate_min && rate <= runtime->hw.rate_max) {
+ runtime->hw.rate_min = rate;
+ runtime->hw.rate_max = rate;
+ }
+}
+
+/*
+ * initialize the chip
+ */
+static int __devinit qtet_init(struct snd_ice1712 *ice)
+{
+ static const unsigned char ak4113_init_vals[] = {
+ /* AK4113_REG_PWRDN */ AK4113_RST | AK4113_PWN |
+ AK4113_OCKS0 | AK4113_OCKS1,
+ /* AK4113_REQ_FORMAT */ AK4113_DIF_I24I2S | AK4113_VTX |
+ AK4113_DEM_OFF | AK4113_DEAU,
+ /* AK4113_REG_IO0 */ AK4113_OPS2 | AK4113_TXE |
+ AK4113_XTL_24_576M,
+ /* AK4113_REG_IO1 */ AK4113_EFH_1024LRCLK | AK4113_IPS(0),
+ /* AK4113_REG_INT0_MASK */ 0,
+ /* AK4113_REG_INT1_MASK */ 0,
+ /* AK4113_REG_DATDTS */ 0,
+ };
+ int err;
+ struct qtet_spec *spec;
+ struct snd_akm4xxx *ak;
+ unsigned char val;
+
+ /* switching ice1724 to external clock - supplied by ext. circuits */
+ val = inb(ICEMT1724(ice, RATE));
+ outb(val | VT1724_SPDIF_MASTER, ICEMT1724(ice, RATE));
+
+ spec = kzalloc(sizeof(*spec), GFP_KERNEL);
+ if (!spec)
+ return -ENOMEM;
+ /* qtet is clocked by Xilinx array */
+ ice->hw_rates = &qtet_rates_info;
+ ice->is_spdif_master = qtet_is_spdif_master;
+ ice->get_rate = qtet_get_rate;
+ ice->set_rate = qtet_set_rate;
+ ice->set_mclk = qtet_set_mclk;
+ ice->set_spdif_clock = qtet_set_spdif_clock;
+ ice->get_spdif_master_type = qtet_get_spdif_master_type;
+ ice->ext_clock_names = ext_clock_names;
+ ice->ext_clock_count = ARRAY_SIZE(ext_clock_names);
+ /* since Qtet can detect correct SPDIF-in rate, all streams can be
+ * limited to this specific rate */
+ ice->spdif.ops.open = ice->pro_open = qtet_spdif_in_open;
+ ice->spec = spec;
+
+ /* Mute Off */
+ /* SCR Initialize*/
+ /* keep codec power down first */
+ set_scr(ice, SCR_PHP);
+ udelay(1);
+ /* codec power up */
+ set_scr(ice, SCR_PHP | SCR_CODEC_PDN);
+
+ /* MCR Initialize */
+ set_mcr(ice, 0);
+
+ /* CPLD Initialize */
+ set_cpld(ice, 0);
+
+
+ ice->num_total_dacs = 2;
+ ice->num_total_adcs = 2;
+
+ ice->akm = kcalloc(2, sizeof(struct snd_akm4xxx), GFP_KERNEL);
+ ak = ice->akm;
+ if (!ak)
+ return -ENOMEM;
+ /* only one codec with two chips */
+ ice->akm_codecs = 1;
+ err = snd_ice1712_akm4xxx_init(ak, &akm_qtet_dac, NULL, ice);
+ if (err < 0)
+ return err;
+ err = snd_ak4113_create(ice->card,
+ qtet_ak4113_read,
+ qtet_ak4113_write,
+ ak4113_init_vals,
+ ice, &spec->ak4113);
+ if (err < 0)
+ return err;
+ /* callback for codecs rate setting */
+ spec->ak4113->change_callback = qtet_ak4113_change;
+ spec->ak4113->change_callback_private = ice;
+ /* AK41143 in Quartet can detect external rate correctly
+ * (i.e. check_flags = 0) */
+ spec->ak4113->check_flags = 0;
+
+ proc_init(ice);
+
+ qtet_set_rate(ice, 44100);
+ return 0;
+}
+
+static unsigned char qtet_eeprom[] __devinitdata = {
+ [ICE_EEP2_SYSCONF] = 0x28, /* clock 256(24MHz), mpu401, 1xADC,
+ 1xDACs, SPDIF in */
+ [ICE_EEP2_ACLINK] = 0x80, /* I2S */
+ [ICE_EEP2_I2S] = 0x78, /* 96k, 24bit, 192k */
+ [ICE_EEP2_SPDIF] = 0xc3, /* out-en, out-int, in, out-ext */
+ [ICE_EEP2_GPIO_DIR] = 0x00, /* 0-7 inputs, switched to output
+ only during output operations */
+ [ICE_EEP2_GPIO_DIR1] = 0xff, /* 8-15 outputs */
+ [ICE_EEP2_GPIO_DIR2] = 0x00,
+ [ICE_EEP2_GPIO_MASK] = 0xff, /* changed only for OUT operations */
+ [ICE_EEP2_GPIO_MASK1] = 0x00,
+ [ICE_EEP2_GPIO_MASK2] = 0xff,
+
+ [ICE_EEP2_GPIO_STATE] = 0x00, /* inputs */
+ [ICE_EEP2_GPIO_STATE1] = 0x7d, /* all 1, but GPIO_CPLD_RW
+ and GPIO15 always zero */
+ [ICE_EEP2_GPIO_STATE2] = 0x00, /* inputs */
+};
+
+/* entry point */
+struct snd_ice1712_card_info snd_vt1724_qtet_cards[] __devinitdata = {
+ {
+ .subvendor = VT1724_SUBDEVICE_QTET,
+ .name = "Infrasonic Quartet",
+ .model = "quartet",
+ .chip_init = qtet_init,
+ .build_controls = qtet_add_controls,
+ .eeprom_size = sizeof(qtet_eeprom),
+ .eeprom_data = qtet_eeprom,
+ },
+ { } /* terminator */
+};
projects / platform / kernel / linux-rpi.git / commitdiff