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 }; 238