sound/pci/ice1712/juli.c

   1 /*
   2  *   ALSA driver for ICEnsemble VT1724 (Envy24HT)
   3  *
   4  *   Lowlevel functions for ESI Juli@ cards
   5  *
   6  *      Copyright (c) 2004 Jaroslav Kysela <perex@suse.cz>
   7  *
   8  *   This program is free software; you can redistribute it and/or modify
   9  *   it under the terms of the GNU General Public License as published by
  10  *   the Free Software Foundation; either version 2 of the License, or
  11  *   (at your option) any later version.
  12  *
  13  *   This program is distributed in the hope that it will be useful,
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *   GNU General Public License for more details.
  17  *
  18  *   You should have received a copy of the GNU General Public License
  19  *   along with this program; if not, write to the Free Software
  20  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21  *
  22  */
  23
  24 #include <sound/driver.h>
  25 #include <asm/io.h>
  26 #include <linux/delay.h>
  27 #include <linux/interrupt.h>
  28 #include <linux/init.h>
  29 #include <linux/slab.h>
  30 #include <sound/core.h>
  31
  32 #include "ice1712.h"
  33 #include "envy24ht.h"
  34 #include "juli.h"
  35
  36 /*
  37  * chip addresses on I2C bus
  38  */
  39 #define AK4114_ADDR             0x20            /* S/PDIF receiver */
  40 #define AK4358_ADDR             0x22            /* DAC */
  41
  42 /*
  43  * GPIO pins
  44  */
  45 #define GPIO_FREQ_MASK          (3<<0)
  46 #define GPIO_FREQ_32KHZ         (0<<0)
  47 #define GPIO_FREQ_44KHZ         (1<<0)
  48 #define GPIO_FREQ_48KHZ         (2<<0)
  49 #define GPIO_MULTI_MASK         (3<<2)
  50 #define GPIO_MULTI_4X           (0<<2)
  51 #define GPIO_MULTI_2X           (1<<2)
  52 #define GPIO_MULTI_1X           (2<<2)          /* also external */
  53 #define GPIO_MULTI_HALF         (3<<2)
  54 #define GPIO_INTERNAL_CLOCK     (1<<4)
  55 #define GPIO_ANALOG_PRESENT     (1<<5)          /* RO only: 0 = present */
  56 #define GPIO_RXMCLK_SEL         (1<<7)          /* must be 0 */
  57 #define GPIO_AK5385A_CKS0       (1<<8)
  58 #define GPIO_AK5385A_DFS0       (1<<9)          /* swapped with DFS1 according doc? */
  59 #define GPIO_AK5385A_DFS1       (1<<10)
  60 #define GPIO_DIGOUT_MONITOR     (1<<11)         /* 1 = active */
  61 #define GPIO_DIGIN_MONITOR      (1<<12)         /* 1 = active */
  62 #define GPIO_ANAIN_MONITOR      (1<<13)         /* 1 = active */
  63 #define GPIO_AK5385A_MCLK       (1<<14)         /* must be 0 */
  64 #define GPIO_MUTE_CONTROL       (1<<15)         /* 0 = off, 1 = on */
  65
  66 static void juli_ak4114_write(void *private_data, unsigned char reg, unsigned char val)
  67 {
  68         snd_vt1724_write_i2c((struct snd_ice1712 *)private_data, AK4114_ADDR, reg, val);
  69 }
  70
  71 static unsigned char juli_ak4114_read(void *private_data, unsigned char reg)
  72 {
  73         return snd_vt1724_read_i2c((struct snd_ice1712 *)private_data, AK4114_ADDR, reg);
  74 }
  75
  76 /*
  77  * AK4358 section
  78  */
  79
  80 static void juli_akm_lock(struct snd_akm4xxx *ak, int chip)
  81 {
  82 }
  83
  84 static void juli_akm_unlock(struct snd_akm4xxx *ak, int chip)
  85 {
  86 }
  87
  88 static void juli_akm_write(struct snd_akm4xxx *ak, int chip,
  89                            unsigned char addr, unsigned char data)
  90 {
  91         struct snd_ice1712 *ice = ak->private_data[0];
  92
  93         snd_assert(chip == 0, return);
  94         snd_vt1724_write_i2c(ice, AK4358_ADDR, addr, data);
  95 }
  96
  97 /*
  98  * change the rate of envy24HT, AK4358
  99  */
 100 static void juli_akm_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
 101 {
 102         unsigned char old, tmp, dfs;
 103
 104         if (rate == 0)  /* no hint - S/PDIF input is master, simply return */
 105                 return;
 106
 107         /* adjust DFS on codecs */
 108         if (rate > 96000)
 109                 dfs = 2;
 110         else if (rate > 48000)
 111                 dfs = 1;
 112         else
 113                 dfs = 0;
 114
 115         tmp = snd_akm4xxx_get(ak, 0, 2);
 116         old = (tmp >> 4) & 0x03;
 117         if (old == dfs)
 118                 return;
 119         /* reset DFS */
 120         snd_akm4xxx_reset(ak, 1);
 121         tmp = snd_akm4xxx_get(ak, 0, 2);
 122         tmp &= ~(0x03 << 4);
 123         tmp |= dfs << 4;
 124         snd_akm4xxx_set(ak, 0, 2, tmp);
 125         snd_akm4xxx_reset(ak, 0);
 126 }
 127
 128 static struct snd_akm4xxx akm_juli_dac __devinitdata = {
 129         .type = SND_AK4358,
 130         .num_dacs = 2,
 131         .ops = {
 132                 .lock = juli_akm_lock,
 133                 .unlock = juli_akm_unlock,
 134                 .write = juli_akm_write,
 135                 .set_rate_val = juli_akm_set_rate_val
 136         }
 137 };
 138
 139 static int __devinit juli_add_controls(struct snd_ice1712 *ice)
 140 {
 141         return snd_ice1712_akm4xxx_build_controls(ice);
 142 }
 143
 144 /*
 145  * initialize the chip
 146  */
 147 static int __devinit juli_init(struct snd_ice1712 *ice)
 148 {
 149         static unsigned char ak4114_init_vals[] = {
 150                 /* AK4117_REG_PWRDN */  AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1,
 151                 /* AK4114_REQ_FORMAT */ AK4114_DIF_I24I2S,
 152                 /* AK4114_REG_IO0 */    AK4114_TX1E,
 153                 /* AK4114_REG_IO1 */    AK4114_EFH_1024 | AK4114_DIT | AK4114_IPS(1),
 154                 /* AK4114_REG_INT0_MASK */ 0,
 155                 /* AK4114_REG_INT1_MASK */ 0
 156         };
 157         static unsigned char ak4114_init_txcsb[] = {
 158                 0x41, 0x02, 0x2c, 0x00, 0x00
 159         };
 160         int err;
 161         struct snd_akm4xxx *ak;
 162
 163 #if 0
 164         for (err = 0; err < 0x20; err++)
 165                 juli_ak4114_read(ice, err);
 166         juli_ak4114_write(ice, 0, 0x0f);
 167         juli_ak4114_read(ice, 0);
 168         juli_ak4114_read(ice, 1);
 169 #endif
 170         err = snd_ak4114_create(ice->card,
 171                                 juli_ak4114_read,
 172                                 juli_ak4114_write,
 173                                 ak4114_init_vals, ak4114_init_txcsb,
 174                                 ice, &ice->spec.juli.ak4114);
 175         if (err < 0)
 176                 return err;
 177
 178 #if 0
 179         /* it seems that the analog doughter board detection does not work
 180            reliably, so force the analog flag; it should be very rare
 181            to use Juli@ without the analog doughter board */
 182         ice->spec.juli.analog = (ice->gpio.get_data(ice) & GPIO_ANALOG_PRESENT) ? 0 : 1;
 183 #else
 184         ice->spec.juli.analog = 1;
 185 #endif
 186
 187         if (ice->spec.juli.analog) {
 188                 printk(KERN_INFO "juli@: analog I/O detected\n");
 189                 ice->num_total_dacs = 2;
 190                 ice->num_total_adcs = 2;
 191
 192                 ak = ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
 193                 if (! ak)
 194                         return -ENOMEM;
 195                 ice->akm_codecs = 1;
 196                 if ((err = snd_ice1712_akm4xxx_init(ak, &akm_juli_dac, NULL, ice)) < 0)
 197                         return err;
 198         }
 199
 200         return 0;
 201 }
 202
 203
 204 /*
 205  * Juli@ boards don't provide the EEPROM data except for the vendor IDs.
 206  * hence the driver needs to sets up it properly.
 207  */
 208
 209 static unsigned char juli_eeprom[] __devinitdata = {
 210         0x20,   /* SYSCONF: clock 512, mpu401, 1xADC, 1xDACs */
 211         0x80,   /* ACLINK: I2S */
 212         0xf8,   /* I2S: vol, 96k, 24bit, 192k */
 213         0xc3,   /* SPDIF: out-en, out-int, spdif-in */
 214         0x9f,   /* GPIO_DIR */
 215         0xff,   /* GPIO_DIR1 */
 216         0x7f,   /* GPIO_DIR2 */
 217         0x9f,   /* GPIO_MASK */
 218         0xff,   /* GPIO_MASK1 */
 219         0x7f,   /* GPIO_MASK2 */
 220         0x16,   /* GPIO_STATE: internal clock, multiple 1x, 48kHz */
 221         0x80,   /* GPIO_STATE1: mute */
 222         0x00,   /* GPIO_STATE2 */
 223 };
 224
 225 /* entry point */
 226 struct snd_ice1712_card_info snd_vt1724_juli_cards[] __devinitdata = {
 227         {
 228                 .subvendor = VT1724_SUBDEVICE_JULI,
 229                 .name = "ESI Juli@",
 230                 .model = "juli",
 231                 .chip_init = juli_init,
 232                 .build_controls = juli_add_controls,
 233                 .eeprom_size = sizeof(juli_eeprom),
 234                 .eeprom_data = juli_eeprom,
 235         },
 236         { } /* terminator */
 237 };