1 /* 2 * ALSA driver for ICEnsemble VT1724 (Envy24HT) 3 * 4 * Lowlevel functions for ESI Juli@ cards 5 * 6 * Copyright (c) 2004 Jaroslav Kysela <perex@perex.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 <asm/io.h> 25 #include <linux/delay.h> 26 #include <linux/interrupt.h> 27 #include <linux/init.h> 28 #include <linux/slab.h> 29 #include <sound/core.h> 30 31 #include "ice1712.h" 32 #include "envy24ht.h" 33 #include "juli.h" 34 35 struct juli_spec { 36 struct ak4114 *ak4114; 37 unsigned int analog: 1; 38 }; 39 40 /* 41 * chip addresses on I2C bus 42 */ 43 #define AK4114_ADDR 0x20 /* S/PDIF receiver */ 44 #define AK4358_ADDR 0x22 /* DAC */ 45 46 /* 47 * GPIO pins 48 */ 49 #define GPIO_FREQ_MASK (3<<0) 50 #define GPIO_FREQ_32KHZ (0<<0) 51 #define GPIO_FREQ_44KHZ (1<<0) 52 #define GPIO_FREQ_48KHZ (2<<0) 53 #define GPIO_MULTI_MASK (3<<2) 54 #define GPIO_MULTI_4X (0<<2) 55 #define GPIO_MULTI_2X (1<<2) 56 #define GPIO_MULTI_1X (2<<2) /* also external */ 57 #define GPIO_MULTI_HALF (3<<2) 58 #define GPIO_INTERNAL_CLOCK (1<<4) 59 #define GPIO_ANALOG_PRESENT (1<<5) /* RO only: 0 = present */ 60 #define GPIO_RXMCLK_SEL (1<<7) /* must be 0 */ 61 #define GPIO_AK5385A_CKS0 (1<<8) 62 #define GPIO_AK5385A_DFS0 (1<<9) /* swapped with DFS1 according doc? */ 63 #define GPIO_AK5385A_DFS1 (1<<10) 64 #define GPIO_DIGOUT_MONITOR (1<<11) /* 1 = active */ 65 #define GPIO_DIGIN_MONITOR (1<<12) /* 1 = active */ 66 #define GPIO_ANAIN_MONITOR (1<<13) /* 1 = active */ 67 #define GPIO_AK5385A_MCLK (1<<14) /* must be 0 */ 68 #define GPIO_MUTE_CONTROL (1<<15) /* 0 = off, 1 = on */ 69 70 static void juli_ak4114_write(void *private_data, unsigned char reg, unsigned char val) 71 { 72 snd_vt1724_write_i2c((struct snd_ice1712 *)private_data, AK4114_ADDR, reg, val); 73 } 74 75 static unsigned char juli_ak4114_read(void *private_data, unsigned char reg) 76 { 77 return snd_vt1724_read_i2c((struct snd_ice1712 *)private_data, AK4114_ADDR, reg); 78 } 79 80 static void juli_spdif_in_open(struct snd_ice1712 *ice, 81 struct snd_pcm_substream *substream) 82 { 83 struct juli_spec *spec = ice->spec; 84 struct snd_pcm_runtime *runtime = substream->runtime; 85 int rate; 86 87 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 88 return; 89 rate = snd_ak4114_external_rate(spec->ak4114); 90 if (rate >= runtime->hw.rate_min && rate <= runtime->hw.rate_max) { 91 runtime->hw.rate_min = rate; 92 runtime->hw.rate_max = rate; 93 } 94 } 95 96 /* 97 * AK4358 section 98 */ 99 100 static void juli_akm_lock(struct snd_akm4xxx *ak, int chip) 101 { 102 } 103 104 static void juli_akm_unlock(struct snd_akm4xxx *ak, int chip) 105 { 106 } 107 108 static void juli_akm_write(struct snd_akm4xxx *ak, int chip, 109 unsigned char addr, unsigned char data) 110 { 111 struct snd_ice1712 *ice = ak->private_data[0]; 112 113 snd_assert(chip == 0, return); 114 snd_vt1724_write_i2c(ice, AK4358_ADDR, addr, data); 115 } 116 117 /* 118 * change the rate of envy24HT, AK4358 119 */ 120 static void juli_akm_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate) 121 { 122 unsigned char old, tmp, dfs; 123 124 if (rate == 0) /* no hint - S/PDIF input is master, simply return */ 125 return; 126 127 /* adjust DFS on codecs */ 128 if (rate > 96000) 129 dfs = 2; 130 else if (rate > 48000) 131 dfs = 1; 132 else 133 dfs = 0; 134 135 tmp = snd_akm4xxx_get(ak, 0, 2); 136 old = (tmp >> 4) & 0x03; 137 if (old == dfs) 138 return; 139 /* reset DFS */ 140 snd_akm4xxx_reset(ak, 1); 141 tmp = snd_akm4xxx_get(ak, 0, 2); 142 tmp &= ~(0x03 << 4); 143 tmp |= dfs << 4; 144 snd_akm4xxx_set(ak, 0, 2, tmp); 145 snd_akm4xxx_reset(ak, 0); 146 } 147 148 static struct snd_akm4xxx akm_juli_dac __devinitdata = { 149 .type = SND_AK4358, 150 .num_dacs = 2, 151 .ops = { 152 .lock = juli_akm_lock, 153 .unlock = juli_akm_unlock, 154 .write = juli_akm_write, 155 .set_rate_val = juli_akm_set_rate_val 156 } 157 }; 158 159 static int __devinit juli_add_controls(struct snd_ice1712 *ice) 160 { 161 struct juli_spec *spec = ice->spec; 162 int err; 163 err = snd_ice1712_akm4xxx_build_controls(ice); 164 if (err < 0) 165 return err; 166 /* only capture SPDIF over AK4114 */ 167 err = snd_ak4114_build(spec->ak4114, NULL, 168 ice->pcm_pro->streams[SNDRV_PCM_STREAM_CAPTURE].substream); 169 if (err < 0) 170 return err; 171 return 0; 172 } 173 174 /* 175 * initialize the chip 176 */ 177 static int __devinit juli_init(struct snd_ice1712 *ice) 178 { 179 static const unsigned char ak4114_init_vals[] = { 180 /* AK4117_REG_PWRDN */ AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1, 181 /* AK4114_REQ_FORMAT */ AK4114_DIF_I24I2S, 182 /* AK4114_REG_IO0 */ AK4114_TX1E, 183 /* AK4114_REG_IO1 */ AK4114_EFH_1024 | AK4114_DIT | AK4114_IPS(1), 184 /* AK4114_REG_INT0_MASK */ 0, 185 /* AK4114_REG_INT1_MASK */ 0 186 }; 187 static const unsigned char ak4114_init_txcsb[] = { 188 0x41, 0x02, 0x2c, 0x00, 0x00 189 }; 190 int err; 191 struct juli_spec *spec; 192 struct snd_akm4xxx *ak; 193 194 spec = kzalloc(sizeof(*spec), GFP_KERNEL); 195 if (!spec) 196 return -ENOMEM; 197 ice->spec = spec; 198 199 err = snd_ak4114_create(ice->card, 200 juli_ak4114_read, 201 juli_ak4114_write, 202 ak4114_init_vals, ak4114_init_txcsb, 203 ice, &spec->ak4114); 204 if (err < 0) 205 return err; 206 207 #if 0 208 /* it seems that the analog doughter board detection does not work 209 reliably, so force the analog flag; it should be very rare 210 to use Juli@ without the analog doughter board */ 211 spec->analog = (ice->gpio.get_data(ice) & GPIO_ANALOG_PRESENT) ? 0 : 1; 212 #else 213 spec->analog = 1; 214 #endif 215 216 if (spec->analog) { 217 printk(KERN_INFO "juli@: analog I/O detected\n"); 218 ice->num_total_dacs = 2; 219 ice->num_total_adcs = 2; 220 221 ak = ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL); 222 if (! ak) 223 return -ENOMEM; 224 ice->akm_codecs = 1; 225 if ((err = snd_ice1712_akm4xxx_init(ak, &akm_juli_dac, NULL, ice)) < 0) 226 return err; 227 } 228 229 ice->spdif.ops.open = juli_spdif_in_open; 230 return 0; 231 } 232 233 234 /* 235 * Juli@ boards don't provide the EEPROM data except for the vendor IDs. 236 * hence the driver needs to sets up it properly. 237 */ 238 239 static unsigned char juli_eeprom[] __devinitdata = { 240 [ICE_EEP2_SYSCONF] = 0x20, /* clock 512, mpu401, 1xADC, 1xDACs */ 241 [ICE_EEP2_ACLINK] = 0x80, /* I2S */ 242 [ICE_EEP2_I2S] = 0xf8, /* vol, 96k, 24bit, 192k */ 243 [ICE_EEP2_SPDIF] = 0xc3, /* out-en, out-int, spdif-in */ 244 [ICE_EEP2_GPIO_DIR] = 0x9f, 245 [ICE_EEP2_GPIO_DIR1] = 0xff, 246 [ICE_EEP2_GPIO_DIR2] = 0x7f, 247 [ICE_EEP2_GPIO_MASK] = 0x9f, 248 [ICE_EEP2_GPIO_MASK1] = 0xff, 249 [ICE_EEP2_GPIO_MASK2] = 0x7f, 250 [ICE_EEP2_GPIO_STATE] = 0x16, /* internal clock, multiple 1x, 48kHz */ 251 [ICE_EEP2_GPIO_STATE1] = 0x80, /* mute */ 252 [ICE_EEP2_GPIO_STATE2] = 0x00, 253 }; 254 255 /* entry point */ 256 struct snd_ice1712_card_info snd_vt1724_juli_cards[] __devinitdata = { 257 { 258 .subvendor = VT1724_SUBDEVICE_JULI, 259 .name = "ESI Juli@", 260 .model = "juli", 261 .chip_init = juli_init, 262 .build_controls = juli_add_controls, 263 .eeprom_size = sizeof(juli_eeprom), 264 .eeprom_data = juli_eeprom, 265 }, 266 { } /* terminator */ 267 }; 268