238 lines
6.2 KiB
C
238 lines
6.2 KiB
C
/*
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* ALSA driver for ICEnsemble VT1724 (Envy24HT)
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*
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* Lowlevel functions for ESI Juli@ cards
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*
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* Copyright (c) 2004 Jaroslav Kysela <perex@suse.cz>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <sound/driver.h>
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#include <asm/io.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <sound/core.h>
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#include "ice1712.h"
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#include "envy24ht.h"
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#include "juli.h"
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/*
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* chip addresses on I2C bus
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*/
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#define AK4114_ADDR 0x20 /* S/PDIF receiver */
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#define AK4358_ADDR 0x22 /* DAC */
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/*
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* GPIO pins
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*/
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#define GPIO_FREQ_MASK (3<<0)
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#define GPIO_FREQ_32KHZ (0<<0)
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#define GPIO_FREQ_44KHZ (1<<0)
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#define GPIO_FREQ_48KHZ (2<<0)
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#define GPIO_MULTI_MASK (3<<2)
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#define GPIO_MULTI_4X (0<<2)
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#define GPIO_MULTI_2X (1<<2)
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#define GPIO_MULTI_1X (2<<2) /* also external */
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#define GPIO_MULTI_HALF (3<<2)
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#define GPIO_INTERNAL_CLOCK (1<<4)
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#define GPIO_ANALOG_PRESENT (1<<5) /* RO only: 0 = present */
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#define GPIO_RXMCLK_SEL (1<<7) /* must be 0 */
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#define GPIO_AK5385A_CKS0 (1<<8)
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#define GPIO_AK5385A_DFS0 (1<<9) /* swapped with DFS1 according doc? */
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#define GPIO_AK5385A_DFS1 (1<<10)
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#define GPIO_DIGOUT_MONITOR (1<<11) /* 1 = active */
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#define GPIO_DIGIN_MONITOR (1<<12) /* 1 = active */
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#define GPIO_ANAIN_MONITOR (1<<13) /* 1 = active */
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#define GPIO_AK5385A_MCLK (1<<14) /* must be 0 */
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#define GPIO_MUTE_CONTROL (1<<15) /* 0 = off, 1 = on */
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static void juli_ak4114_write(void *private_data, unsigned char reg, unsigned char val)
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{
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snd_vt1724_write_i2c((ice1712_t *)private_data, AK4114_ADDR, reg, val);
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}
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static unsigned char juli_ak4114_read(void *private_data, unsigned char reg)
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{
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return snd_vt1724_read_i2c((ice1712_t *)private_data, AK4114_ADDR, reg);
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}
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/*
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* AK4358 section
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*/
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static void juli_akm_lock(akm4xxx_t *ak, int chip)
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{
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}
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static void juli_akm_unlock(akm4xxx_t *ak, int chip)
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{
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}
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static void juli_akm_write(akm4xxx_t *ak, int chip,
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unsigned char addr, unsigned char data)
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{
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ice1712_t *ice = ak->private_data[0];
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snd_assert(chip == 0, return);
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snd_vt1724_write_i2c(ice, AK4358_ADDR, addr, data);
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}
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/*
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* change the rate of envy24HT, AK4358
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*/
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static void juli_akm_set_rate_val(akm4xxx_t *ak, unsigned int rate)
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{
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unsigned char old, tmp, dfs;
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if (rate == 0) /* no hint - S/PDIF input is master, simply return */
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return;
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/* adjust DFS on codecs */
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if (rate > 96000)
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dfs = 2;
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else if (rate > 48000)
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dfs = 1;
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else
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dfs = 0;
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tmp = snd_akm4xxx_get(ak, 0, 2);
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old = (tmp >> 4) & 0x03;
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if (old == dfs)
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return;
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/* reset DFS */
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snd_akm4xxx_reset(ak, 1);
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tmp = snd_akm4xxx_get(ak, 0, 2);
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tmp &= ~(0x03 << 4);
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tmp |= dfs << 4;
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snd_akm4xxx_set(ak, 0, 2, tmp);
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snd_akm4xxx_reset(ak, 0);
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}
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static akm4xxx_t akm_juli_dac __devinitdata = {
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.type = SND_AK4358,
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.num_dacs = 2,
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.ops = {
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.lock = juli_akm_lock,
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.unlock = juli_akm_unlock,
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.write = juli_akm_write,
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.set_rate_val = juli_akm_set_rate_val
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}
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};
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static int __devinit juli_add_controls(ice1712_t *ice)
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{
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return snd_ice1712_akm4xxx_build_controls(ice);
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}
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/*
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* initialize the chip
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*/
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static int __devinit juli_init(ice1712_t *ice)
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{
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static unsigned char ak4114_init_vals[] = {
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/* AK4117_REG_PWRDN */ AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1,
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/* AK4114_REQ_FORMAT */ AK4114_DIF_I24I2S,
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/* AK4114_REG_IO0 */ AK4114_TX1E,
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/* AK4114_REG_IO1 */ AK4114_EFH_1024 | AK4114_DIT | AK4114_IPS(1),
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/* AK4114_REG_INT0_MASK */ 0,
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/* AK4114_REG_INT1_MASK */ 0
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};
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static unsigned char ak4114_init_txcsb[] = {
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0x41, 0x02, 0x2c, 0x00, 0x00
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};
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int err;
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akm4xxx_t *ak;
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#if 0
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for (err = 0; err < 0x20; err++)
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juli_ak4114_read(ice, err);
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juli_ak4114_write(ice, 0, 0x0f);
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juli_ak4114_read(ice, 0);
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juli_ak4114_read(ice, 1);
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#endif
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err = snd_ak4114_create(ice->card,
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juli_ak4114_read,
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juli_ak4114_write,
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ak4114_init_vals, ak4114_init_txcsb,
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ice, &ice->spec.juli.ak4114);
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if (err < 0)
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return err;
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#if 0
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/* it seems that the analog doughter board detection does not work
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reliably, so force the analog flag; it should be very rare
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to use Juli@ without the analog doughter board */
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ice->spec.juli.analog = (ice->gpio.get_data(ice) & GPIO_ANALOG_PRESENT) ? 0 : 1;
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#else
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ice->spec.juli.analog = 1;
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#endif
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if (ice->spec.juli.analog) {
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printk(KERN_INFO "juli@: analog I/O detected\n");
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ice->num_total_dacs = 2;
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ice->num_total_adcs = 2;
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ak = ice->akm = kzalloc(sizeof(akm4xxx_t), GFP_KERNEL);
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if (! ak)
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return -ENOMEM;
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ice->akm_codecs = 1;
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if ((err = snd_ice1712_akm4xxx_init(ak, &akm_juli_dac, NULL, ice)) < 0)
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return err;
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}
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return 0;
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}
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/*
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* Juli@ boards don't provide the EEPROM data except for the vendor IDs.
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* hence the driver needs to sets up it properly.
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*/
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static unsigned char juli_eeprom[] __devinitdata = {
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0x20, /* SYSCONF: clock 512, mpu401, 1xADC, 1xDACs */
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0x80, /* ACLINK: I2S */
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0xf8, /* I2S: vol, 96k, 24bit, 192k */
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0xc3, /* SPDIF: out-en, out-int, spdif-in */
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0x9f, /* GPIO_DIR */
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0xff, /* GPIO_DIR1 */
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0x7f, /* GPIO_DIR2 */
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0x9f, /* GPIO_MASK */
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0xff, /* GPIO_MASK1 */
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0x7f, /* GPIO_MASK2 */
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0x16, /* GPIO_STATE: internal clock, multiple 1x, 48kHz */
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0x80, /* GPIO_STATE1: mute */
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0x00, /* GPIO_STATE2 */
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};
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/* entry point */
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struct snd_ice1712_card_info snd_vt1724_juli_cards[] __devinitdata = {
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{
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.subvendor = VT1724_SUBDEVICE_JULI,
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.name = "ESI Juli@",
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.model = "juli",
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.chip_init = juli_init,
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.build_controls = juli_add_controls,
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.eeprom_size = sizeof(juli_eeprom),
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.eeprom_data = juli_eeprom,
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},
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{ } /* terminator */
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};
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