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@perex.cz>
   7  *                    2008 Pavel Hofman <dustin@seznam.cz>
   8  *
   9  *
  10  *   This program is free software; you can redistribute it and/or modify
  11  *   it under the terms of the GNU General Public License as published by
  12  *   the Free Software Foundation; either version 2 of the License, or
  13  *   (at your option) any later version.
  14  *
  15  *   This program is distributed in the hope that it will be useful,
  16  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *   GNU General Public License for more details.
  19  *
  20  *   You should have received a copy of the GNU General Public License
  21  *   along with this program; if not, write to the Free Software
  22  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  23  *
  24  */
  25
  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 #include <sound/tlv.h>
  32
  33 #include "ice1712.h"
  34 #include "envy24ht.h"
  35 #include "juli.h"
  36
  37 struct juli_spec {
  38         struct ak4114 *ak4114;
  39         unsigned int analog:1;
  40 };
  41
  42 /*
  43  * chip addresses on I2C bus
  44  */
  45 #define AK4114_ADDR             0x20            /* S/PDIF receiver */
  46 #define AK4358_ADDR             0x22            /* DAC */
  47
  48 /*
  49  * Juli does not use the standard ICE1724 clock scheme. Juli's ice1724 chip is
  50  * supplied by external clock provided by Xilinx array and MK73-1 PLL frequency
  51  * multiplier. Actual frequency is set by ice1724 GPIOs hooked to the Xilinx.
  52  *
  53  * The clock circuitry is supplied by the two ice1724 crystals. This
  54  * arrangement allows to generate independent clock signal for AK4114's input
  55  * rate detection circuit. As a result, Juli, unlike most other
  56  * ice1724+ak4114-based cards, detects spdif input rate correctly.
  57  * This fact is applied in the driver, allowing to modify PCM stream rate
  58  * parameter according to the actual input rate.
  59  *
  60  * Juli uses the remaining three stereo-channels of its DAC to optionally
  61  * monitor analog input, digital input, and digital output. The corresponding
  62  * I2S signals are routed by Xilinx, controlled by GPIOs.
  63  *
  64  * The master mute is implemented using output muting transistors (GPIO) in
  65  * combination with smuting the DAC.
  66  *
  67  * The card itself has no HW master volume control, implemented using the
  68  * vmaster control.
  69  *
  70  * TODO:
  71  * researching and fixing the input monitors
  72  */
  73
  74 /*
  75  * GPIO pins
  76  */
  77 #define GPIO_FREQ_MASK          (3<<0)
  78 #define GPIO_FREQ_32KHZ         (0<<0)
  79 #define GPIO_FREQ_44KHZ         (1<<0)
  80 #define GPIO_FREQ_48KHZ         (2<<0)
  81 #define GPIO_MULTI_MASK         (3<<2)
  82 #define GPIO_MULTI_4X           (0<<2)
  83 #define GPIO_MULTI_2X           (1<<2)
  84 #define GPIO_MULTI_1X           (2<<2)          /* also external */
  85 #define GPIO_MULTI_HALF         (3<<2)
  86 #define GPIO_INTERNAL_CLOCK     (1<<4)          /* 0 = external, 1 = internal */
  87 #define GPIO_CLOCK_MASK         (1<<4)
  88 #define GPIO_ANALOG_PRESENT     (1<<5)          /* RO only: 0 = present */
  89 #define GPIO_RXMCLK_SEL         (1<<7)          /* must be 0 */
  90 #define GPIO_AK5385A_CKS0       (1<<8)
  91 #define GPIO_AK5385A_DFS1       (1<<9)
  92 #define GPIO_AK5385A_DFS0       (1<<10)
  93 #define GPIO_DIGOUT_MONITOR     (1<<11)         /* 1 = active */
  94 #define GPIO_DIGIN_MONITOR      (1<<12)         /* 1 = active */
  95 #define GPIO_ANAIN_MONITOR      (1<<13)         /* 1 = active */
  96 #define GPIO_AK5385A_CKS1       (1<<14)         /* must be 0 */
  97 #define GPIO_MUTE_CONTROL       (1<<15)         /* output mute, 1 = muted */
  98
  99 #define GPIO_RATE_MASK          (GPIO_FREQ_MASK | GPIO_MULTI_MASK | \
 100                 GPIO_CLOCK_MASK)
 101 #define GPIO_AK5385A_MASK       (GPIO_AK5385A_CKS0 | GPIO_AK5385A_DFS0 | \
 102                 GPIO_AK5385A_DFS1 | GPIO_AK5385A_CKS1)
 103
 104 #define JULI_PCM_RATE   (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
 105                 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
 106                 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_64000 | \
 107                 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | \
 108                 SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000)
 109
 110 #define GPIO_RATE_16000         (GPIO_FREQ_32KHZ | GPIO_MULTI_HALF | \
 111                 GPIO_INTERNAL_CLOCK)
 112 #define GPIO_RATE_22050         (GPIO_FREQ_44KHZ | GPIO_MULTI_HALF | \
 113                 GPIO_INTERNAL_CLOCK)
 114 #define GPIO_RATE_24000         (GPIO_FREQ_48KHZ | GPIO_MULTI_HALF | \
 115                 GPIO_INTERNAL_CLOCK)
 116 #define GPIO_RATE_32000         (GPIO_FREQ_32KHZ | GPIO_MULTI_1X | \
 117                 GPIO_INTERNAL_CLOCK)
 118 #define GPIO_RATE_44100         (GPIO_FREQ_44KHZ | GPIO_MULTI_1X | \
 119                 GPIO_INTERNAL_CLOCK)
 120 #define GPIO_RATE_48000         (GPIO_FREQ_48KHZ | GPIO_MULTI_1X | \
 121                 GPIO_INTERNAL_CLOCK)
 122 #define GPIO_RATE_64000         (GPIO_FREQ_32KHZ | GPIO_MULTI_2X | \
 123                 GPIO_INTERNAL_CLOCK)
 124 #define GPIO_RATE_88200         (GPIO_FREQ_44KHZ | GPIO_MULTI_2X | \
 125                 GPIO_INTERNAL_CLOCK)
 126 #define GPIO_RATE_96000         (GPIO_FREQ_48KHZ | GPIO_MULTI_2X | \
 127                 GPIO_INTERNAL_CLOCK)
 128 #define GPIO_RATE_176400        (GPIO_FREQ_44KHZ | GPIO_MULTI_4X | \
 129                 GPIO_INTERNAL_CLOCK)
 130 #define GPIO_RATE_192000        (GPIO_FREQ_48KHZ | GPIO_MULTI_4X | \
 131                 GPIO_INTERNAL_CLOCK)
 132
 133 /*
 134  * Initial setup of the conversion array GPIO <-> rate
 135  */
 136 static unsigned int juli_rates[] = {
 137         16000, 22050, 24000, 32000,
 138         44100, 48000, 64000, 88200,
 139         96000, 176400, 192000,
 140 };
 141
 142 static unsigned int gpio_vals[] = {
 143         GPIO_RATE_16000, GPIO_RATE_22050, GPIO_RATE_24000, GPIO_RATE_32000,
 144         GPIO_RATE_44100, GPIO_RATE_48000, GPIO_RATE_64000, GPIO_RATE_88200,
 145         GPIO_RATE_96000, GPIO_RATE_176400, GPIO_RATE_192000,
 146 };
 147
 148 static struct snd_pcm_hw_constraint_list juli_rates_info = {
 149         .count = ARRAY_SIZE(juli_rates),
 150         .list = juli_rates,
 151         .mask = 0,
 152 };
 153
 154 static int get_gpio_val(int rate)
 155 {
 156         int i;
 157         for (i = 0; i < ARRAY_SIZE(juli_rates); i++)
 158                 if (juli_rates[i] == rate)
 159                         return gpio_vals[i];
 160         return 0;
 161 }
 162
 163 static void juli_ak4114_write(void *private_data, unsigned char reg,
 164                                 unsigned char val)
 165 {
 166         snd_vt1724_write_i2c((struct snd_ice1712 *)private_data, AK4114_ADDR,
 167                                 reg, val);
 168 }
 169
 170 static unsigned char juli_ak4114_read(void *private_data, unsigned char reg)
 171 {
 172         return snd_vt1724_read_i2c((struct snd_ice1712 *)private_data,
 173                                         AK4114_ADDR, reg);
 174 }
 175
 176 /*
 177  * If SPDIF capture and slaved to SPDIF-IN, setting runtime rate
 178  * to the external rate
 179  */
 180 static void juli_spdif_in_open(struct snd_ice1712 *ice,
 181                                 struct snd_pcm_substream *substream)
 182 {
 183         struct juli_spec *spec = ice->spec;
 184         struct snd_pcm_runtime *runtime = substream->runtime;
 185         int rate;
 186
 187         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK ||
 188                         !ice->is_spdif_master(ice))
 189                 return;
 190         rate = snd_ak4114_external_rate(spec->ak4114);
 191         if (rate >= runtime->hw.rate_min && rate <= runtime->hw.rate_max) {
 192                 runtime->hw.rate_min = rate;
 193                 runtime->hw.rate_max = rate;
 194         }
 195 }
 196
 197 /*
 198  * AK4358 section
 199  */
 200
 201 static void juli_akm_lock(struct snd_akm4xxx *ak, int chip)
 202 {
 203 }
 204
 205 static void juli_akm_unlock(struct snd_akm4xxx *ak, int chip)
 206 {
 207 }
 208
 209 static void juli_akm_write(struct snd_akm4xxx *ak, int chip,
 210                            unsigned char addr, unsigned char data)
 211 {
 212         struct snd_ice1712 *ice = ak->private_data[0];
 213
 214         if (snd_BUG_ON(chip))
 215                 return;
 216         snd_vt1724_write_i2c(ice, AK4358_ADDR, addr, data);
 217 }
 218
 219 /*
 220  * change the rate of envy24HT, AK4358, AK5385
 221  */
 222 static void juli_akm_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
 223 {
 224         unsigned char old, tmp, ak4358_dfs;
 225         unsigned int ak5385_pins, old_gpio, new_gpio;
 226         struct snd_ice1712 *ice = ak->private_data[0];
 227         struct juli_spec *spec = ice->spec;
 228
 229         if (rate == 0)  /* no hint - S/PDIF input is master or the new spdif
 230                            input rate undetected, simply return */
 231                 return;
 232
 233         /* adjust DFS on codecs */
 234         if (rate > 96000)  {
 235                 ak4358_dfs = 2;
 236                 ak5385_pins = GPIO_AK5385A_DFS1 | GPIO_AK5385A_CKS0;
 237         } else if (rate > 48000) {
 238                 ak4358_dfs = 1;
 239                 ak5385_pins = GPIO_AK5385A_DFS0;
 240         } else {
 241                 ak4358_dfs = 0;
 242                 ak5385_pins = 0;
 243         }
 244         /* AK5385 first, since it requires cold reset affecting both codecs */
 245         old_gpio = ice->gpio.get_data(ice);
 246         new_gpio =  (old_gpio & ~GPIO_AK5385A_MASK) | ak5385_pins;
 247         /* printk(KERN_DEBUG "JULI - ak5385 set_rate_val: new gpio 0x%x\n",
 248                 new_gpio); */
 249         ice->gpio.set_data(ice, new_gpio);
 250
 251         /* cold reset */
 252         old = inb(ICEMT1724(ice, AC97_CMD));
 253         outb(old | VT1724_AC97_COLD, ICEMT1724(ice, AC97_CMD));
 254         udelay(1);
 255         outb(old & ~VT1724_AC97_COLD, ICEMT1724(ice, AC97_CMD));
 256
 257         /* AK4358 */
 258         /* set new value, reset DFS */
 259         tmp = snd_akm4xxx_get(ak, 0, 2);
 260         snd_akm4xxx_reset(ak, 1);
 261         tmp = snd_akm4xxx_get(ak, 0, 2);
 262         tmp &= ~(0x03 << 4);
 263         tmp |= ak4358_dfs << 4;
 264         snd_akm4xxx_set(ak, 0, 2, tmp);
 265         snd_akm4xxx_reset(ak, 0);
 266
 267         /* reinit ak4114 */
 268         snd_ak4114_reinit(spec->ak4114);
 269 }
 270
 271 #define AK_DAC(xname, xch)      { .name = xname, .num_channels = xch }
 272 #define PCM_VOLUME              "PCM Playback Volume"
 273 #define MONITOR_AN_IN_VOLUME    "Monitor Analog In Volume"
 274 #define MONITOR_DIG_IN_VOLUME   "Monitor Digital In Volume"
 275 #define MONITOR_DIG_OUT_VOLUME  "Monitor Digital Out Volume"
 276
 277 static const struct snd_akm4xxx_dac_channel juli_dac[] = {
 278         AK_DAC(PCM_VOLUME, 2),
 279         AK_DAC(MONITOR_AN_IN_VOLUME, 2),
 280         AK_DAC(MONITOR_DIG_OUT_VOLUME, 2),
 281         AK_DAC(MONITOR_DIG_IN_VOLUME, 2),
 282 };
 283
 284
 285 static struct snd_akm4xxx akm_juli_dac = {
 286         .type = SND_AK4358,
 287         .num_dacs = 8,  /* DAC1 - analog out
 288                            DAC2 - analog in monitor
 289                            DAC3 - digital out monitor
 290                            DAC4 - digital in monitor
 291                          */
 292         .ops = {
 293                 .lock = juli_akm_lock,
 294                 .unlock = juli_akm_unlock,
 295                 .write = juli_akm_write,
 296                 .set_rate_val = juli_akm_set_rate_val
 297         },
 298         .dac_info = juli_dac,
 299 };
 300
 301 #define juli_mute_info          snd_ctl_boolean_mono_info
 302
 303 static int juli_mute_get(struct snd_kcontrol *kcontrol,
 304                 struct snd_ctl_elem_value *ucontrol)
 305 {
 306         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 307         unsigned int val;
 308         val = ice->gpio.get_data(ice) & (unsigned int) kcontrol->private_value;
 309         if (kcontrol->private_value == GPIO_MUTE_CONTROL)
 310                 /* val 0 = signal on */
 311                 ucontrol->value.integer.value[0] = (val) ? 0 : 1;
 312         else
 313                 /* val 1 = signal on */
 314                 ucontrol->value.integer.value[0] = (val) ? 1 : 0;
 315         return 0;
 316 }
 317
 318 static int juli_mute_put(struct snd_kcontrol *kcontrol,
 319                 struct snd_ctl_elem_value *ucontrol)
 320 {
 321         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 322         unsigned int old_gpio, new_gpio;
 323         old_gpio = ice->gpio.get_data(ice);
 324         if (ucontrol->value.integer.value[0]) {
 325                 /* unmute */
 326                 if (kcontrol->private_value == GPIO_MUTE_CONTROL) {
 327                         /* 0 = signal on */
 328                         new_gpio = old_gpio & ~GPIO_MUTE_CONTROL;
 329                         /* un-smuting DAC */
 330                         snd_akm4xxx_write(ice->akm, 0, 0x01, 0x01);
 331                 } else
 332                         /* 1 = signal on */
 333                         new_gpio =  old_gpio |
 334                                 (unsigned int) kcontrol->private_value;
 335         } else {
 336                 /* mute */
 337                 if (kcontrol->private_value == GPIO_MUTE_CONTROL) {
 338                         /* 1 = signal off */
 339                         new_gpio = old_gpio | GPIO_MUTE_CONTROL;
 340                         /* smuting DAC */
 341                         snd_akm4xxx_write(ice->akm, 0, 0x01, 0x03);
 342                 } else
 343                         /* 0 = signal off */
 344                         new_gpio =  old_gpio &
 345                                 ~((unsigned int) kcontrol->private_value);
 346         }
 347         /* printk(KERN_DEBUG
 348                 "JULI - mute/unmute: control_value: 0x%x, old_gpio: 0x%x, "
 349                 "new_gpio 0x%x\n",
 350                 (unsigned int)ucontrol->value.integer.value[0], old_gpio,
 351                 new_gpio); */
 352         if (old_gpio != new_gpio) {
 353                 ice->gpio.set_data(ice, new_gpio);
 354                 return 1;
 355         }
 356         /* no change */
 357         return 0;
 358 }
 359
 360 static struct snd_kcontrol_new juli_mute_controls[] = {
 361         {
 362                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 363                 .name = "Master Playback Switch",
 364                 .info = juli_mute_info,
 365                 .get = juli_mute_get,
 366                 .put = juli_mute_put,
 367                 .private_value = GPIO_MUTE_CONTROL,
 368         },
 369         /* Although the following functionality respects the succint NDA'd
 370          * documentation from the card manufacturer, and the same way of
 371          * operation is coded in OSS Juli driver, only Digital Out monitor
 372          * seems to work. Surprisingly, Analog input monitor outputs Digital
 373          * output data. The two are independent, as enabling both doubles
 374          * volume of the monitor sound.
 375          *
 376          * Checking traces on the board suggests the functionality described
 377          * by the manufacturer is correct - I2S from ADC and AK4114
 378          * go to ICE as well as to Xilinx, I2S inputs of DAC2,3,4 (the monitor
 379          * inputs) are fed from Xilinx.
 380          *
 381          * I even checked traces on board and coded a support in driver for
 382          * an alternative possibility - the unused I2S ICE output channels
 383          * switched to HW-IN/SPDIF-IN and providing the monitoring signal to
 384          * the DAC - to no avail. The I2S outputs seem to be unconnected.
 385          *
 386          * The windows driver supports the monitoring correctly.
 387          */
 388         {
 389                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 390                 .name = "Monitor Analog In Switch",
 391                 .info = juli_mute_info,
 392                 .get = juli_mute_get,
 393                 .put = juli_mute_put,
 394                 .private_value = GPIO_ANAIN_MONITOR,
 395         },
 396         {
 397                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 398                 .name = "Monitor Digital Out Switch",
 399                 .info = juli_mute_info,
 400                 .get = juli_mute_get,
 401                 .put = juli_mute_put,
 402                 .private_value = GPIO_DIGOUT_MONITOR,
 403         },
 404         {
 405                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 406                 .name = "Monitor Digital In Switch",
 407                 .info = juli_mute_info,
 408                 .get = juli_mute_get,
 409                 .put = juli_mute_put,
 410                 .private_value = GPIO_DIGIN_MONITOR,
 411         },
 412 };
 413
 414 static char *slave_vols[] = {
 415         PCM_VOLUME,
 416         MONITOR_AN_IN_VOLUME,
 417         MONITOR_DIG_IN_VOLUME,
 418         MONITOR_DIG_OUT_VOLUME,
 419         NULL
 420 };
 421
 422 static
 423 DECLARE_TLV_DB_SCALE(juli_master_db_scale, -6350, 50, 1);
 424
 425 static struct snd_kcontrol *ctl_find(struct snd_card *card,
 426                                      const char *name)
 427 {
 428         struct snd_ctl_elem_id sid;
 429         memset(&sid, 0, sizeof(sid));
 430         /* FIXME: strcpy is bad. */
 431         strcpy(sid.name, name);
 432         sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 433         return snd_ctl_find_id(card, &sid);
 434 }
 435
 436 static void add_slaves(struct snd_card *card,
 437                        struct snd_kcontrol *master,
 438                        char * const *list)
 439 {
 440         for (; *list; list++) {
 441                 struct snd_kcontrol *slave = ctl_find(card, *list);
 442                 /* printk(KERN_DEBUG "add_slaves - %s\n", *list); */
 443                 if (slave) {
 444                         /* printk(KERN_DEBUG "slave %s found\n", *list); */
 445                         snd_ctl_add_slave(master, slave);
 446                 }
 447         }
 448 }
 449
 450 static int juli_add_controls(struct snd_ice1712 *ice)
 451 {
 452         struct juli_spec *spec = ice->spec;
 453         int err;
 454         unsigned int i;
 455         struct snd_kcontrol *vmaster;
 456
 457         err = snd_ice1712_akm4xxx_build_controls(ice);
 458         if (err < 0)
 459                 return err;
 460
 461         for (i = 0; i < ARRAY_SIZE(juli_mute_controls); i++) {
 462                 err = snd_ctl_add(ice->card,
 463                                 snd_ctl_new1(&juli_mute_controls[i], ice));
 464                 if (err < 0)
 465                         return err;
 466         }
 467         /* Create virtual master control */
 468         vmaster = snd_ctl_make_virtual_master("Master Playback Volume",
 469                                               juli_master_db_scale);
 470         if (!vmaster)
 471                 return -ENOMEM;
 472         add_slaves(ice->card, vmaster, slave_vols);
 473         err = snd_ctl_add(ice->card, vmaster);
 474         if (err < 0)
 475                 return err;
 476
 477         /* only capture SPDIF over AK4114 */
 478         err = snd_ak4114_build(spec->ak4114, NULL,
 479                         ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
 480         if (err < 0)
 481                 return err;
 482         return 0;
 483 }
 484
 485 /*
 486  * suspend/resume
 487  * */
 488
 489 #ifdef CONFIG_PM_SLEEP
 490 static int juli_resume(struct snd_ice1712 *ice)
 491 {
 492         struct snd_akm4xxx *ak = ice->akm;
 493         struct juli_spec *spec = ice->spec;
 494         /* akm4358 un-reset, un-mute */
 495         snd_akm4xxx_reset(ak, 0);
 496         /* reinit ak4114 */
 497         snd_ak4114_reinit(spec->ak4114);
 498         return 0;
 499 }
 500
 501 static int juli_suspend(struct snd_ice1712 *ice)
 502 {
 503         struct snd_akm4xxx *ak = ice->akm;
 504         /* akm4358 reset and soft-mute */
 505         snd_akm4xxx_reset(ak, 1);
 506         return 0;
 507 }
 508 #endif
 509
 510 /*
 511  * initialize the chip
 512  */
 513
 514 static inline int juli_is_spdif_master(struct snd_ice1712 *ice)
 515 {
 516         return (ice->gpio.get_data(ice) & GPIO_INTERNAL_CLOCK) ? 0 : 1;
 517 }
 518
 519 static unsigned int juli_get_rate(struct snd_ice1712 *ice)
 520 {
 521         int i;
 522         unsigned char result;
 523
 524         result =  ice->gpio.get_data(ice) & GPIO_RATE_MASK;
 525         for (i = 0; i < ARRAY_SIZE(gpio_vals); i++)
 526                 if (gpio_vals[i] == result)
 527                         return juli_rates[i];
 528         return 0;
 529 }
 530
 531 /* setting new rate */
 532 static void juli_set_rate(struct snd_ice1712 *ice, unsigned int rate)
 533 {
 534         unsigned int old, new;
 535         unsigned char val;
 536
 537         old = ice->gpio.get_data(ice);
 538         new =  (old & ~GPIO_RATE_MASK) | get_gpio_val(rate);
 539         /* printk(KERN_DEBUG "JULI - set_rate: old %x, new %x\n",
 540                         old & GPIO_RATE_MASK,
 541                         new & GPIO_RATE_MASK); */
 542
 543         ice->gpio.set_data(ice, new);
 544         /* switching to external clock - supplied by external circuits */
 545         val = inb(ICEMT1724(ice, RATE));
 546         outb(val | VT1724_SPDIF_MASTER, ICEMT1724(ice, RATE));
 547 }
 548
 549 static inline unsigned char juli_set_mclk(struct snd_ice1712 *ice,
 550                                           unsigned int rate)
 551 {
 552         /* no change in master clock */
 553         return 0;
 554 }
 555
 556 /* setting clock to external - SPDIF */
 557 static int juli_set_spdif_clock(struct snd_ice1712 *ice, int type)
 558 {
 559         unsigned int old;
 560         old = ice->gpio.get_data(ice);
 561         /* external clock (= 0), multiply 1x, 48kHz */
 562         ice->gpio.set_data(ice, (old & ~GPIO_RATE_MASK) | GPIO_MULTI_1X |
 563                         GPIO_FREQ_48KHZ);
 564         return 0;
 565 }
 566
 567 /* Called when ak4114 detects change in the input SPDIF stream */
 568 static void juli_ak4114_change(struct ak4114 *ak4114, unsigned char c0,
 569                                unsigned char c1)
 570 {
 571         struct snd_ice1712 *ice = ak4114->change_callback_private;
 572         int rate;
 573         if (ice->is_spdif_master(ice) && c1) {
 574                 /* only for SPDIF master mode, rate was changed */
 575                 rate = snd_ak4114_external_rate(ak4114);
 576                 /* printk(KERN_DEBUG "ak4114 - input rate changed to %d\n",
 577                                 rate); */
 578                 juli_akm_set_rate_val(ice->akm, rate);
 579         }
 580 }
 581
 582 static int juli_init(struct snd_ice1712 *ice)
 583 {
 584         static const unsigned char ak4114_init_vals[] = {
 585                 /* AK4117_REG_PWRDN */  AK4114_RST | AK4114_PWN |
 586                                         AK4114_OCKS0 | AK4114_OCKS1,
 587                 /* AK4114_REQ_FORMAT */ AK4114_DIF_I24I2S,
 588                 /* AK4114_REG_IO0 */    AK4114_TX1E,
 589                 /* AK4114_REG_IO1 */    AK4114_EFH_1024 | AK4114_DIT |
 590                                         AK4114_IPS(1),
 591                 /* AK4114_REG_INT0_MASK */ 0,
 592                 /* AK4114_REG_INT1_MASK */ 0
 593         };
 594         static const unsigned char ak4114_init_txcsb[] = {
 595                 0x41, 0x02, 0x2c, 0x00, 0x00
 596         };
 597         int err;
 598         struct juli_spec *spec;
 599         struct snd_akm4xxx *ak;
 600
 601         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
 602         if (!spec)
 603                 return -ENOMEM;
 604         ice->spec = spec;
 605
 606         err = snd_ak4114_create(ice->card,
 607                                 juli_ak4114_read,
 608                                 juli_ak4114_write,
 609                                 ak4114_init_vals, ak4114_init_txcsb,
 610                                 ice, &spec->ak4114);
 611         if (err < 0)
 612                 return err;
 613         /* callback for codecs rate setting */
 614         spec->ak4114->change_callback = juli_ak4114_change;
 615         spec->ak4114->change_callback_private = ice;
 616         /* AK4114 in Juli can detect external rate correctly */
 617         spec->ak4114->check_flags = 0;
 618
 619 #if 0
 620 /*
 621  * it seems that the analog doughter board detection does not work reliably, so
 622  * force the analog flag; it should be very rare (if ever) to come at Juli@
 623  * used without the analog daughter board
 624  */
 625         spec->analog = (ice->gpio.get_data(ice) & GPIO_ANALOG_PRESENT) ? 0 : 1;
 626 #else
 627         spec->analog = 1;
 628 #endif
 629
 630         if (spec->analog) {
 631                 printk(KERN_INFO "juli@: analog I/O detected\n");
 632                 ice->num_total_dacs = 2;
 633                 ice->num_total_adcs = 2;
 634
 635                 ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
 636                 ak = ice->akm;
 637                 if (!ak)
 638                         return -ENOMEM;
 639                 ice->akm_codecs = 1;
 640                 err = snd_ice1712_akm4xxx_init(ak, &akm_juli_dac, NULL, ice);
 641                 if (err < 0)
 642                         return err;
 643         }
 644
 645         /* juli is clocked by Xilinx array */
 646         ice->hw_rates = &juli_rates_info;
 647         ice->is_spdif_master = juli_is_spdif_master;
 648         ice->get_rate = juli_get_rate;
 649         ice->set_rate = juli_set_rate;
 650         ice->set_mclk = juli_set_mclk;
 651         ice->set_spdif_clock = juli_set_spdif_clock;
 652
 653         ice->spdif.ops.open = juli_spdif_in_open;
 654
 655 #ifdef CONFIG_PM_SLEEP
 656         ice->pm_resume = juli_resume;
 657         ice->pm_suspend = juli_suspend;
 658         ice->pm_suspend_enabled = 1;
 659 #endif
 660
 661         return 0;
 662 }
 663
 664
 665 /*
 666  * Juli@ boards don't provide the EEPROM data except for the vendor IDs.
 667  * hence the driver needs to sets up it properly.
 668  */
 669
 670 static unsigned char juli_eeprom[] = {
 671         [ICE_EEP2_SYSCONF]     = 0x2b,  /* clock 512, mpu401, 1xADC, 1xDACs,
 672                                            SPDIF in */
 673         [ICE_EEP2_ACLINK]      = 0x80,  /* I2S */
 674         [ICE_EEP2_I2S]         = 0xf8,  /* vol, 96k, 24bit, 192k */
 675         [ICE_EEP2_SPDIF]       = 0xc3,  /* out-en, out-int, spdif-in */
 676         [ICE_EEP2_GPIO_DIR]    = 0x9f,  /* 5, 6:inputs; 7, 4-0 outputs*/
 677         [ICE_EEP2_GPIO_DIR1]   = 0xff,
 678         [ICE_EEP2_GPIO_DIR2]   = 0x7f,
 679         [ICE_EEP2_GPIO_MASK]   = 0x60,  /* 5, 6: locked; 7, 4-0 writable */
 680         [ICE_EEP2_GPIO_MASK1]  = 0x00,  /* 0-7 writable */
 681         [ICE_EEP2_GPIO_MASK2]  = 0x7f,
 682         [ICE_EEP2_GPIO_STATE]  = GPIO_FREQ_48KHZ | GPIO_MULTI_1X |
 683                GPIO_INTERNAL_CLOCK,     /* internal clock, multiple 1x, 48kHz*/
 684         [ICE_EEP2_GPIO_STATE1] = 0x00,  /* unmuted */
 685         [ICE_EEP2_GPIO_STATE2] = 0x00,
 686 };
 687
 688 /* entry point */
 689 struct snd_ice1712_card_info snd_vt1724_juli_cards[] = {
 690         {
 691                 .subvendor = VT1724_SUBDEVICE_JULI,
 692                 .name = "ESI Juli@",
 693                 .model = "juli",
 694                 .chip_init = juli_init,
 695                 .build_controls = juli_add_controls,
 696                 .eeprom_size = sizeof(juli_eeprom),
 697                 .eeprom_data = juli_eeprom,
 698         },
 699         { } /* terminator */
 700 };