sound/pci/ice1712/prodigy192.c

   1 /*
   2  *   ALSA driver for ICEnsemble VT1724 (Envy24HT)
   3  *
   4  *   Lowlevel functions for AudioTrak Prodigy 192 cards
   5  *   Supported IEC958 input from optional MI/ODI/O add-on card.
   6  *
   7  *   Specifics (SW, HW):
   8  *   -------------------
   9  *      * 49.5MHz crystal
  10  *      * SPDIF-OUT on the card:
  11  *        - coax (through isolation transformer)/toslink supplied by
  12  *          74HC04 gates - 3 in parallel
  13  *        - output switched between on-board CD drive dig-out connector
  14  *          and ice1724 SPDTX pin, using 74HC02 NOR gates, controlled
  15  *          by GPIO20 (0 = CD dig-out, 1 = SPDTX)
  16  *      * SPDTX goes straight to MI/ODI/O card's SPDIF-OUT coax
  17  *
  18  *      * MI/ODI/O card: AK4114 based, used for iec958 input only
  19  *              - toslink input -> RX0
  20  *              - coax input -> RX1
  21  *              - 4wire protocol:
  22  *                      AK4114          ICE1724
  23  *                      ------------------------------
  24  *                      CDTO (pin 32) -- GPIO11 pin 86
  25  *                      CDTI (pin 33) -- GPIO10 pin 77
  26  *                      CCLK (pin 34) -- GPIO9 pin 76
  27  *                      CSN  (pin 35) -- GPIO8 pin 75
  28  *              - output data Mode 7 (24bit, I2S, slave)
  29  *              - both MCKO1 and MCKO2 of ak4114 are fed to FPGA, which
  30  *                outputs master clock to SPMCLKIN of ice1724.
  31  *                Experimentally I found out that only a combination of
  32  *                OCKS0=1, OCKS1=1 (128fs, 64fs output) and ice1724 -
  33  *                VT1724_MT_I2S_MCLK_128X=0 (256fs input) yields correct
  34  *                sampling rate. That means the the FPGA doubles the
  35  *                MCK01 rate.
  36  *
  37  *      Copyright (c) 2003 Takashi Iwai <tiwai@suse.de>
  38  *      Copyright (c) 2003 Dimitromanolakis Apostolos <apostol@cs.utoronto.ca>
  39  *      Copyright (c) 2004 Kouichi ONO <co2b@ceres.dti.ne.jp>
  40  *
  41  *   This program is free software; you can redistribute it and/or modify
  42  *   it under the terms of the GNU General Public License as published by
  43  *   the Free Software Foundation; either version 2 of the License, or
  44  *   (at your option) any later version.
  45  *
  46  *   This program is distributed in the hope that it will be useful,
  47  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  48  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  49  *   GNU General Public License for more details.
  50  *
  51  *   You should have received a copy of the GNU General Public License
  52  *   along with this program; if not, write to the Free Software
  53  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  54  *
  55  */
  56
  57 #include <asm/io.h>
  58 #include <linux/delay.h>
  59 #include <linux/interrupt.h>
  60 #include <linux/init.h>
  61 #include <linux/slab.h>
  62 #include <sound/core.h>
  63
  64 #include "ice1712.h"
  65 #include "envy24ht.h"
  66 #include "prodigy192.h"
  67 #include "stac946x.h"
  68 #include <sound/tlv.h>
  69
  70 struct prodigy192_spec {
  71         struct ak4114 *ak4114;
  72         /* rate change needs atomic mute/unmute of all dacs*/
  73         struct mutex mute_mutex;
  74 };
  75
  76 static inline void stac9460_put(struct snd_ice1712 *ice, int reg, unsigned char val)
  77 {
  78         snd_vt1724_write_i2c(ice, PRODIGY192_STAC9460_ADDR, reg, val);
  79 }
  80
  81 static inline unsigned char stac9460_get(struct snd_ice1712 *ice, int reg)
  82 {
  83         return snd_vt1724_read_i2c(ice, PRODIGY192_STAC9460_ADDR, reg);
  84 }
  85
  86 /*
  87  * DAC mute control
  88  */
  89
  90 /*
  91  * idx = STAC9460 volume register number, mute: 0 = mute, 1 = unmute
  92  */
  93 static int stac9460_dac_mute(struct snd_ice1712 *ice, int idx,
  94                 unsigned char mute)
  95 {
  96         unsigned char new, old;
  97         int change;
  98         old = stac9460_get(ice, idx);
  99         new = (~mute << 7 & 0x80) | (old & ~0x80);
 100         change = (new != old);
 101         if (change)
 102                 /*printk ("Volume register 0x%02x: 0x%02x\n", idx, new);*/
 103                 stac9460_put(ice, idx, new);
 104         return change;
 105 }
 106
 107 #define stac9460_dac_mute_info          snd_ctl_boolean_mono_info
 108
 109 static int stac9460_dac_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 110 {
 111         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 112         unsigned char val;
 113         int idx;
 114
 115         if (kcontrol->private_value)
 116                 idx = STAC946X_MASTER_VOLUME;
 117         else
 118                 idx  = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
 119         val = stac9460_get(ice, idx);
 120         ucontrol->value.integer.value[0] = (~val >> 7) & 0x1;
 121         return 0;
 122 }
 123
 124 static int stac9460_dac_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 125 {
 126         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 127         struct prodigy192_spec *spec = ice->spec;
 128         int idx, change;
 129
 130         if (kcontrol->private_value)
 131                 idx = STAC946X_MASTER_VOLUME;
 132         else
 133                 idx  = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
 134         /* due to possible conflicts with stac9460_set_rate_val, mutexing */
 135         mutex_lock(&spec->mute_mutex);
 136         /*
 137         printk(KERN_DEBUG "Mute put: reg 0x%02x, ctrl value: 0x%02x\n", idx,
 138                ucontrol->value.integer.value[0]);
 139         */
 140         change = stac9460_dac_mute(ice, idx, ucontrol->value.integer.value[0]);
 141         mutex_unlock(&spec->mute_mutex);
 142         return change;
 143 }
 144
 145 /*
 146  * DAC volume attenuation mixer control
 147  */
 148 static int stac9460_dac_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 149 {
 150         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 151         uinfo->count = 1;
 152         uinfo->value.integer.min = 0;                   /* mute */
 153         uinfo->value.integer.max = 0x7f;                /* 0dB */
 154         return 0;
 155 }
 156
 157 static int stac9460_dac_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 158 {
 159         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 160         int idx;
 161         unsigned char vol;
 162
 163         if (kcontrol->private_value)
 164                 idx = STAC946X_MASTER_VOLUME;
 165         else
 166                 idx  = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
 167         vol = stac9460_get(ice, idx) & 0x7f;
 168         ucontrol->value.integer.value[0] = 0x7f - vol;
 169
 170         return 0;
 171 }
 172
 173 static int stac9460_dac_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 174 {
 175         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 176         int idx;
 177         unsigned char tmp, ovol, nvol;
 178         int change;
 179
 180         if (kcontrol->private_value)
 181                 idx = STAC946X_MASTER_VOLUME;
 182         else
 183                 idx  = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
 184         nvol = ucontrol->value.integer.value[0];
 185         tmp = stac9460_get(ice, idx);
 186         ovol = 0x7f - (tmp & 0x7f);
 187         change = (ovol != nvol);
 188         if (change) {
 189                 ovol =  (0x7f - nvol) | (tmp & 0x80);
 190                 /*
 191                 printk(KERN_DEBUG "DAC Volume: reg 0x%02x: 0x%02x\n",
 192                        idx, ovol);
 193                 */
 194                 stac9460_put(ice, idx, (0x7f - nvol) | (tmp & 0x80));
 195         }
 196         return change;
 197 }
 198
 199 /*
 200  * ADC mute control
 201  */
 202 #define stac9460_adc_mute_info          snd_ctl_boolean_stereo_info
 203
 204 static int stac9460_adc_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 205 {
 206         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 207         unsigned char val;
 208         int i;
 209
 210         for (i = 0; i < 2; ++i) {
 211                 val = stac9460_get(ice, STAC946X_MIC_L_VOLUME + i);
 212                 ucontrol->value.integer.value[i] = ~val>>7 & 0x1;
 213         }
 214
 215         return 0;
 216 }
 217
 218 static int stac9460_adc_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 219 {
 220         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 221         unsigned char new, old;
 222         int i, reg;
 223         int change;
 224
 225         for (i = 0; i < 2; ++i) {
 226                 reg = STAC946X_MIC_L_VOLUME + i;
 227                 old = stac9460_get(ice, reg);
 228                 new = (~ucontrol->value.integer.value[i]<<7&0x80) | (old&~0x80);
 229                 change = (new != old);
 230                 if (change)
 231                         stac9460_put(ice, reg, new);
 232         }
 233
 234         return change;
 235 }
 236
 237 /*
 238  * ADC gain mixer control
 239  */
 240 static int stac9460_adc_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 241 {
 242         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 243         uinfo->count = 2;
 244         uinfo->value.integer.min = 0;           /* 0dB */
 245         uinfo->value.integer.max = 0x0f;        /* 22.5dB */
 246         return 0;
 247 }
 248
 249 static int stac9460_adc_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 250 {
 251         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 252         int i, reg;
 253         unsigned char vol;
 254
 255         for (i = 0; i < 2; ++i) {
 256                 reg = STAC946X_MIC_L_VOLUME + i;
 257                 vol = stac9460_get(ice, reg) & 0x0f;
 258                 ucontrol->value.integer.value[i] = 0x0f - vol;
 259         }
 260
 261         return 0;
 262 }
 263
 264 static int stac9460_adc_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 265 {
 266         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 267         int i, reg;
 268         unsigned char ovol, nvol;
 269         int change;
 270
 271         for (i = 0; i < 2; ++i) {
 272                 reg = STAC946X_MIC_L_VOLUME + i;
 273                 nvol = ucontrol->value.integer.value[i] & 0x0f;
 274                 ovol = 0x0f - stac9460_get(ice, reg);
 275                 change = ((ovol & 0x0f)  != nvol);
 276                 if (change)
 277                         stac9460_put(ice, reg, (0x0f - nvol) | (ovol & ~0x0f));
 278         }
 279
 280         return change;
 281 }
 282
 283 static int stac9460_mic_sw_info(struct snd_kcontrol *kcontrol,
 284                                 struct snd_ctl_elem_info *uinfo)
 285 {
 286         static char *texts[2] = { "Line In", "Mic" };
 287
 288         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 289         uinfo->count = 1;
 290         uinfo->value.enumerated.items = 2;
 291
 292         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
 293                 uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
 294         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 295
 296         return 0;
 297 }
 298
 299
 300 static int stac9460_mic_sw_get(struct snd_kcontrol *kcontrol,
 301                         struct snd_ctl_elem_value *ucontrol)
 302 {
 303         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 304         unsigned char val;
 305
 306         val = stac9460_get(ice, STAC946X_GENERAL_PURPOSE);
 307         ucontrol->value.enumerated.item[0] = (val >> 7) & 0x1;
 308         return 0;
 309 }
 310
 311 static int stac9460_mic_sw_put(struct snd_kcontrol *kcontrol,
 312                         struct snd_ctl_elem_value *ucontrol)
 313 {
 314         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 315         unsigned char new, old;
 316         int change;
 317         old = stac9460_get(ice, STAC946X_GENERAL_PURPOSE);
 318         new = (ucontrol->value.enumerated.item[0] << 7 & 0x80) | (old & ~0x80);
 319         change = (new != old);
 320         if (change)
 321                 stac9460_put(ice, STAC946X_GENERAL_PURPOSE, new);
 322         return change;
 323 }
 324 /*
 325  * Handler for setting correct codec rate - called when rate change is detected
 326  */
 327 static void stac9460_set_rate_val(struct snd_ice1712 *ice, unsigned int rate)
 328 {
 329         unsigned char old, new;
 330         int idx;
 331         unsigned char changed[7];
 332         struct prodigy192_spec *spec = ice->spec;
 333
 334         if (rate == 0)  /* no hint - S/PDIF input is master, simply return */
 335                 return;
 336         else if (rate <= 48000)
 337                 new = 0x08;     /* 256x, base rate mode */
 338         else if (rate <= 96000)
 339                 new = 0x11;     /* 256x, mid rate mode */
 340         else
 341                 new = 0x12;     /* 128x, high rate mode */
 342         old = stac9460_get(ice, STAC946X_MASTER_CLOCKING);
 343         if (old == new)
 344                 return;
 345         /* change detected, setting master clock, muting first */
 346         /* due to possible conflicts with mute controls - mutexing */
 347         mutex_lock(&spec->mute_mutex);
 348         /* we have to remember current mute status for each DAC */
 349         for (idx = 0; idx < 7 ; ++idx)
 350                 changed[idx] = stac9460_dac_mute(ice,
 351                                 STAC946X_MASTER_VOLUME + idx, 0);
 352         /*printk(KERN_DEBUG "Rate change: %d, new MC: 0x%02x\n", rate, new);*/
 353         stac9460_put(ice, STAC946X_MASTER_CLOCKING, new);
 354         udelay(10);
 355         /* unmuting - only originally unmuted dacs -
 356          * i.e. those changed when muting */
 357         for (idx = 0; idx < 7 ; ++idx) {
 358                 if (changed[idx])
 359                         stac9460_dac_mute(ice, STAC946X_MASTER_VOLUME + idx, 1);
 360         }
 361         mutex_unlock(&spec->mute_mutex);
 362 }
 363
 364
 365 static const DECLARE_TLV_DB_SCALE(db_scale_dac, -19125, 75, 0);
 366 static const DECLARE_TLV_DB_SCALE(db_scale_adc, 0, 150, 0);
 367
 368 /*
 369  * mixers
 370  */
 371
 372 static struct snd_kcontrol_new stac_controls[] __devinitdata = {
 373         {
 374                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 375                 .name = "Master Playback Switch",
 376                 .info = stac9460_dac_mute_info,
 377                 .get = stac9460_dac_mute_get,
 378                 .put = stac9460_dac_mute_put,
 379                 .private_value = 1,
 380                 .tlv = { .p = db_scale_dac }
 381         },
 382         {
 383                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 384                 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
 385                            SNDRV_CTL_ELEM_ACCESS_TLV_READ),
 386                 .name = "Master Playback Volume",
 387                 .info = stac9460_dac_vol_info,
 388                 .get = stac9460_dac_vol_get,
 389                 .put = stac9460_dac_vol_put,
 390                 .private_value = 1,
 391                 .tlv = { .p = db_scale_dac }
 392         },
 393         {
 394                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 395                 .name = "DAC Switch",
 396                 .count = 6,
 397                 .info = stac9460_dac_mute_info,
 398                 .get = stac9460_dac_mute_get,
 399                 .put = stac9460_dac_mute_put,
 400         },
 401         {
 402                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 403                 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
 404                            SNDRV_CTL_ELEM_ACCESS_TLV_READ),
 405                 .name = "DAC Volume",
 406                 .count = 6,
 407                 .info = stac9460_dac_vol_info,
 408                 .get = stac9460_dac_vol_get,
 409                 .put = stac9460_dac_vol_put,
 410                 .tlv = { .p = db_scale_dac }
 411         },
 412         {
 413                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 414                 .name = "ADC Capture Switch",
 415                 .count = 1,
 416                 .info = stac9460_adc_mute_info,
 417                 .get = stac9460_adc_mute_get,
 418                 .put = stac9460_adc_mute_put,
 419
 420         },
 421         {
 422                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 423                 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
 424                            SNDRV_CTL_ELEM_ACCESS_TLV_READ),
 425                 .name = "ADC Capture Volume",
 426                 .count = 1,
 427                 .info = stac9460_adc_vol_info,
 428                 .get = stac9460_adc_vol_get,
 429                 .put = stac9460_adc_vol_put,
 430                 .tlv = { .p = db_scale_adc }
 431         },
 432         {
 433                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 434                 .name = "Analog Capture Input",
 435                 .info = stac9460_mic_sw_info,
 436                 .get = stac9460_mic_sw_get,
 437                 .put = stac9460_mic_sw_put,
 438
 439         },
 440 };
 441
 442 /* AK4114 - ICE1724 connections on Prodigy192 + MI/ODI/O */
 443 /* CDTO (pin 32) -- GPIO11 pin 86
 444  * CDTI (pin 33) -- GPIO10 pin 77
 445  * CCLK (pin 34) -- GPIO9 pin 76
 446  * CSN  (pin 35) -- GPIO8 pin 75
 447  */
 448 #define AK4114_ADDR     0x00 /* C1-C0: Chip Address
 449                               * (According to datasheet fixed to “00”)
 450                               */
 451
 452 /*
 453  * 4wire ak4114 protocol - writing data
 454  */
 455 static void write_data(struct snd_ice1712 *ice, unsigned int gpio,
 456                        unsigned int data, int idx)
 457 {
 458         for (; idx >= 0; idx--) {
 459                 /* drop clock */
 460                 gpio &= ~VT1724_PRODIGY192_CCLK;
 461                 snd_ice1712_gpio_write(ice, gpio);
 462                 udelay(1);
 463                 /* set data */
 464                 if (data & (1 << idx))
 465                         gpio |= VT1724_PRODIGY192_CDOUT;
 466                 else
 467                         gpio &= ~VT1724_PRODIGY192_CDOUT;
 468                 snd_ice1712_gpio_write(ice, gpio);
 469                 udelay(1);
 470                 /* raise clock */
 471                 gpio |= VT1724_PRODIGY192_CCLK;
 472                 snd_ice1712_gpio_write(ice, gpio);
 473                 udelay(1);
 474         }
 475 }
 476
 477 /*
 478  * 4wire ak4114 protocol - reading data
 479  */
 480 static unsigned char read_data(struct snd_ice1712 *ice, unsigned int gpio,
 481                                int idx)
 482 {
 483         unsigned char data = 0;
 484
 485         for (; idx >= 0; idx--) {
 486                 /* drop clock */
 487                 gpio &= ~VT1724_PRODIGY192_CCLK;
 488                 snd_ice1712_gpio_write(ice, gpio);
 489                 udelay(1);
 490                 /* read data */
 491                 if (snd_ice1712_gpio_read(ice) & VT1724_PRODIGY192_CDIN)
 492                         data |= (1 << idx);
 493                 udelay(1);
 494                 /* raise clock */
 495                 gpio |= VT1724_PRODIGY192_CCLK;
 496                 snd_ice1712_gpio_write(ice, gpio);
 497                 udelay(1);
 498         }
 499         return data;
 500 }
 501 /*
 502  * 4wire ak4114 protocol - starting sequence
 503  */
 504 static unsigned int prodigy192_4wire_start(struct snd_ice1712 *ice)
 505 {
 506         unsigned int tmp;
 507
 508         snd_ice1712_save_gpio_status(ice);
 509         tmp = snd_ice1712_gpio_read(ice);
 510
 511         tmp |= VT1724_PRODIGY192_CCLK; /* high at init */
 512         tmp &= ~VT1724_PRODIGY192_CS; /* drop chip select */
 513         snd_ice1712_gpio_write(ice, tmp);
 514         udelay(1);
 515         return tmp;
 516 }
 517
 518 /*
 519  * 4wire ak4114 protocol - final sequence
 520  */
 521 static void prodigy192_4wire_finish(struct snd_ice1712 *ice, unsigned int tmp)
 522 {
 523         tmp |= VT1724_PRODIGY192_CS; /* raise chip select */
 524         snd_ice1712_gpio_write(ice, tmp);
 525         udelay(1);
 526         snd_ice1712_restore_gpio_status(ice);
 527 }
 528
 529 /*
 530  * Write data to addr register of ak4114
 531  */
 532 static void prodigy192_ak4114_write(void *private_data, unsigned char addr,
 533                                unsigned char data)
 534 {
 535         struct snd_ice1712 *ice = private_data;
 536         unsigned int tmp, addrdata;
 537         tmp = prodigy192_4wire_start(ice);
 538         addrdata = (AK4114_ADDR << 6) | 0x20 | (addr & 0x1f);
 539         addrdata = (addrdata << 8) | data;
 540         write_data(ice, tmp, addrdata, 15);
 541         prodigy192_4wire_finish(ice, tmp);
 542 }
 543
 544 /*
 545  * Read data from addr register of ak4114
 546  */
 547 static unsigned char prodigy192_ak4114_read(void *private_data,
 548                                             unsigned char addr)
 549 {
 550         struct snd_ice1712 *ice = private_data;
 551         unsigned int tmp;
 552         unsigned char data;
 553
 554         tmp = prodigy192_4wire_start(ice);
 555         write_data(ice, tmp, (AK4114_ADDR << 6) | (addr & 0x1f), 7);
 556         data = read_data(ice, tmp, 7);
 557         prodigy192_4wire_finish(ice, tmp);
 558         return data;
 559 }
 560
 561
 562 static int ak4114_input_sw_info(struct snd_kcontrol *kcontrol,
 563                                 struct snd_ctl_elem_info *uinfo)
 564 {
 565         static char *texts[2] = { "Toslink", "Coax" };
 566
 567         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 568         uinfo->count = 1;
 569         uinfo->value.enumerated.items = 2;
 570         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
 571                 uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
 572         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 573         return 0;
 574 }
 575
 576
 577 static int ak4114_input_sw_get(struct snd_kcontrol *kcontrol,
 578                         struct snd_ctl_elem_value *ucontrol)
 579 {
 580         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 581         unsigned char val;
 582
 583         val = prodigy192_ak4114_read(ice, AK4114_REG_IO1);
 584         /* AK4114_IPS0 bit = 0 -> RX0 = Toslink
 585          * AK4114_IPS0 bit = 1 -> RX1 = Coax
 586          */
 587         ucontrol->value.enumerated.item[0] = (val & AK4114_IPS0) ? 1 : 0;
 588         return 0;
 589 }
 590
 591 static int ak4114_input_sw_put(struct snd_kcontrol *kcontrol,
 592                         struct snd_ctl_elem_value *ucontrol)
 593 {
 594         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 595         unsigned char new, old, itemvalue;
 596         int change;
 597
 598         old = prodigy192_ak4114_read(ice, AK4114_REG_IO1);
 599         /* AK4114_IPS0 could be any bit */
 600         itemvalue = (ucontrol->value.enumerated.item[0]) ? 0xff : 0x00;
 601
 602         new = (itemvalue & AK4114_IPS0) | (old & ~AK4114_IPS0);
 603         change = (new != old);
 604         if (change)
 605                 prodigy192_ak4114_write(ice, AK4114_REG_IO1, new);
 606         return change;
 607 }
 608
 609
 610 static struct snd_kcontrol_new ak4114_controls[] __devinitdata = {
 611         {
 612                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 613                 .name = "MIODIO IEC958 Capture Input",
 614                 .info = ak4114_input_sw_info,
 615                 .get = ak4114_input_sw_get,
 616                 .put = ak4114_input_sw_put,
 617
 618         }
 619 };
 620
 621
 622 static int prodigy192_ak4114_init(struct snd_ice1712 *ice)
 623 {
 624         static const unsigned char ak4114_init_vals[] = {
 625                 AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1,
 626                 /* ice1724 expects I2S and provides clock,
 627                  * DEM0 disables the deemphasis filter
 628                  */
 629                 AK4114_DIF_I24I2S | AK4114_DEM0 ,
 630                 AK4114_TX1E,
 631                 AK4114_EFH_1024 | AK4114_DIT, /* default input RX0 */
 632                 0,
 633                 0
 634         };
 635         static const unsigned char ak4114_init_txcsb[] = {
 636                 0x41, 0x02, 0x2c, 0x00, 0x00
 637         };
 638         struct prodigy192_spec *spec = ice->spec;
 639         int err;
 640
 641         err = snd_ak4114_create(ice->card,
 642                                  prodigy192_ak4114_read,
 643                                  prodigy192_ak4114_write,
 644                                  ak4114_init_vals, ak4114_init_txcsb,
 645                                  ice, &spec->ak4114);
 646         if (err < 0)
 647                 return err;
 648         /* AK4114 in Prodigy192 cannot detect external rate correctly.
 649          * No reason to stop capture stream due to incorrect checks */
 650         spec->ak4114->check_flags = AK4114_CHECK_NO_RATE;
 651         return 0;
 652 }
 653
 654 static void stac9460_proc_regs_read(struct snd_info_entry *entry,
 655                 struct snd_info_buffer *buffer)
 656 {
 657         struct snd_ice1712 *ice = (struct snd_ice1712 *)entry->private_data;
 658         int reg, val;
 659         /* registers 0x0 - 0x14 */
 660         for (reg = 0; reg <= 0x15; reg++) {
 661                 val = stac9460_get(ice, reg);
 662                 snd_iprintf(buffer, "0x%02x = 0x%02x\n", reg, val);
 663         }
 664 }
 665
 666
 667 static void stac9460_proc_init(struct snd_ice1712 *ice)
 668 {
 669         struct snd_info_entry *entry;
 670         if (!snd_card_proc_new(ice->card, "stac9460_codec", &entry))
 671                 snd_info_set_text_ops(entry, ice, stac9460_proc_regs_read);
 672 }
 673
 674
 675 static int __devinit prodigy192_add_controls(struct snd_ice1712 *ice)
 676 {
 677         struct prodigy192_spec *spec = ice->spec;
 678         unsigned int i;
 679         int err;
 680
 681         for (i = 0; i < ARRAY_SIZE(stac_controls); i++) {
 682                 err = snd_ctl_add(ice->card,
 683                                   snd_ctl_new1(&stac_controls[i], ice));
 684                 if (err < 0)
 685                         return err;
 686         }
 687         if (spec->ak4114) {
 688                 /* ak4114 is connected */
 689                 for (i = 0; i < ARRAY_SIZE(ak4114_controls); i++) {
 690                         err = snd_ctl_add(ice->card,
 691                                           snd_ctl_new1(&ak4114_controls[i],
 692                                                        ice));
 693                         if (err < 0)
 694                                 return err;
 695                 }
 696                 err = snd_ak4114_build(spec->ak4114,
 697                                 NULL, /* ak4114 in MIO/DI/O handles no IEC958 output */
 698                                 ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
 699                 if (err < 0)
 700                         return err;
 701         }
 702         stac9460_proc_init(ice);
 703         return 0;
 704 }
 705
 706 /*
 707  * check for presence of MI/ODI/O add-on card with digital inputs
 708  */
 709 static int prodigy192_miodio_exists(struct snd_ice1712 *ice)
 710 {
 711
 712         unsigned char orig_value;
 713         const unsigned char test_data = 0xd1;   /* random value */
 714         unsigned char addr = AK4114_REG_INT0_MASK; /* random SAFE address */
 715         int exists = 0;
 716
 717         orig_value = prodigy192_ak4114_read(ice, addr);
 718         prodigy192_ak4114_write(ice, addr, test_data);
 719         if (prodigy192_ak4114_read(ice, addr) == test_data) {
 720                 /* ak4114 seems to communicate, apparently exists */
 721                 /* writing back original value */
 722                 prodigy192_ak4114_write(ice, addr, orig_value);
 723                 exists = 1;
 724         }
 725         return exists;
 726 }
 727
 728 /*
 729  * initialize the chip
 730  */
 731 static int __devinit prodigy192_init(struct snd_ice1712 *ice)
 732 {
 733         static const unsigned short stac_inits_prodigy[] = {
 734                 STAC946X_RESET, 0,
 735                 STAC946X_MASTER_CLOCKING, 0x11,
 736 /*              STAC946X_MASTER_VOLUME, 0,
 737                 STAC946X_LF_VOLUME, 0,
 738                 STAC946X_RF_VOLUME, 0,
 739                 STAC946X_LR_VOLUME, 0,
 740                 STAC946X_RR_VOLUME, 0,
 741                 STAC946X_CENTER_VOLUME, 0,
 742                 STAC946X_LFE_VOLUME, 0,*/
 743                 (unsigned short)-1
 744         };
 745         const unsigned short *p;
 746         int err = 0;
 747         struct prodigy192_spec *spec;
 748
 749         /* prodigy 192 */
 750         ice->num_total_dacs = 6;
 751         ice->num_total_adcs = 2;
 752         ice->vt1720 = 0;  /* ice1724, e.g. 23 GPIOs */
 753
 754         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
 755         if (!spec)
 756                 return -ENOMEM;
 757         ice->spec = spec;
 758         mutex_init(&spec->mute_mutex);
 759
 760         /* initialize codec */
 761         p = stac_inits_prodigy;
 762         for (; *p != (unsigned short)-1; p += 2)
 763                 stac9460_put(ice, p[0], p[1]);
 764         ice->gpio.set_pro_rate = stac9460_set_rate_val;
 765
 766         /* MI/ODI/O add on card with AK4114 */
 767         if (prodigy192_miodio_exists(ice)) {
 768                 err = prodigy192_ak4114_init(ice);
 769                 /* from this moment if err = 0 then
 770                  * spec->ak4114 should not be null
 771                  */
 772                 snd_printdd("AK4114 initialized with status %d\n", err);
 773         } else
 774                 snd_printdd("AK4114 not found\n");
 775         if (err < 0)
 776                 return err;
 777
 778         return 0;
 779 }
 780
 781
 782 /*
 783  * Aureon boards don't provide the EEPROM data except for the vendor IDs.
 784  * hence the driver needs to sets up it properly.
 785  */
 786
 787 static unsigned char prodigy71_eeprom[] __devinitdata = {
 788         [ICE_EEP2_SYSCONF]     = 0x6a,  /* 49MHz crystal, mpu401,
 789                                          * spdif-in+ 1 stereo ADC,
 790                                          * 3 stereo DACs
 791                                          */
 792         [ICE_EEP2_ACLINK]      = 0x80,  /* I2S */
 793         [ICE_EEP2_I2S]         = 0xf8,  /* vol, 96k, 24bit, 192k */
 794         [ICE_EEP2_SPDIF]       = 0xc3,  /* out-en, out-int, spdif-in */
 795         [ICE_EEP2_GPIO_DIR]    = 0xff,
 796         [ICE_EEP2_GPIO_DIR1]   = ~(VT1724_PRODIGY192_CDIN >> 8) ,
 797         [ICE_EEP2_GPIO_DIR2]   = 0xbf,
 798         [ICE_EEP2_GPIO_MASK]   = 0x00,
 799         [ICE_EEP2_GPIO_MASK1]  = 0x00,
 800         [ICE_EEP2_GPIO_MASK2]  = 0x00,
 801         [ICE_EEP2_GPIO_STATE]  = 0x00,
 802         [ICE_EEP2_GPIO_STATE1] = 0x00,
 803         [ICE_EEP2_GPIO_STATE2] = 0x10,  /* GPIO20: 0 = CD drive dig. input
 804                                          * passthrough,
 805                                          * 1 = SPDIF-OUT from ice1724
 806                                          */
 807 };
 808
 809
 810 /* entry point */
 811 struct snd_ice1712_card_info snd_vt1724_prodigy192_cards[] __devinitdata = {
 812         {
 813                 .subvendor = VT1724_SUBDEVICE_PRODIGY192VE,
 814                 .name = "Audiotrak Prodigy 192",
 815                 .model = "prodigy192",
 816                 .chip_init = prodigy192_init,
 817                 .build_controls = prodigy192_add_controls,
 818                 .eeprom_size = sizeof(prodigy71_eeprom),
 819                 .eeprom_data = prodigy71_eeprom,
 820         },
 821         { } /* terminator */
 822 };