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 <sound/driver.h>
  58 #include <asm/io.h>
  59 #include <linux/delay.h>
  60 #include <linux/interrupt.h>
  61 #include <linux/init.h>
  62 #include <linux/slab.h>
  63 #include <sound/core.h>
  64
  65 #include "ice1712.h"
  66 #include "envy24ht.h"
  67 #include "prodigy192.h"
  68 #include "stac946x.h"
  69 #include <sound/tlv.h>
  70
  71 static inline void stac9460_put(struct snd_ice1712 *ice, int reg, unsigned char val)
  72 {
  73         snd_vt1724_write_i2c(ice, PRODIGY192_STAC9460_ADDR, reg, val);
  74 }
  75
  76 static inline unsigned char stac9460_get(struct snd_ice1712 *ice, int reg)
  77 {
  78         return snd_vt1724_read_i2c(ice, PRODIGY192_STAC9460_ADDR, reg);
  79 }
  80
  81 /*
  82  * DAC mute control
  83  */
  84 #define stac9460_dac_mute_info          snd_ctl_boolean_mono_info
  85
  86 static int stac9460_dac_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  87 {
  88         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
  89         unsigned char val;
  90         int idx;
  91
  92         if (kcontrol->private_value)
  93                 idx = STAC946X_MASTER_VOLUME;
  94         else
  95                 idx  = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
  96         val = stac9460_get(ice, idx);
  97         ucontrol->value.integer.value[0] = (~val >> 7) & 0x1;
  98         return 0;
  99 }
 100
 101 static int stac9460_dac_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 102 {
 103         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 104         unsigned char new, old;
 105         int idx;
 106         int change;
 107
 108         if (kcontrol->private_value)
 109                 idx = STAC946X_MASTER_VOLUME;
 110         else
 111                 idx  = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
 112         old = stac9460_get(ice, idx);
 113         new = (~ucontrol->value.integer.value[0]<< 7 & 0x80) | (old & ~0x80);
 114         change = (new != old);
 115         if (change)
 116                 stac9460_put(ice, idx, new);
 117
 118         return change;
 119 }
 120
 121 /*
 122  * DAC volume attenuation mixer control
 123  */
 124 static int stac9460_dac_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 125 {
 126         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 127         uinfo->count = 1;
 128         uinfo->value.integer.min = 0;                   /* mute */
 129         uinfo->value.integer.max = 0x7f;                /* 0dB */
 130         return 0;
 131 }
 132
 133 static int stac9460_dac_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 134 {
 135         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 136         int idx;
 137         unsigned char vol;
 138
 139         if (kcontrol->private_value)
 140                 idx = STAC946X_MASTER_VOLUME;
 141         else
 142                 idx  = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
 143         vol = stac9460_get(ice, idx) & 0x7f;
 144         ucontrol->value.integer.value[0] = 0x7f - vol;
 145
 146         return 0;
 147 }
 148
 149 static int stac9460_dac_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 150 {
 151         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 152         int idx;
 153         unsigned char tmp, ovol, nvol;
 154         int change;
 155
 156         if (kcontrol->private_value)
 157                 idx = STAC946X_MASTER_VOLUME;
 158         else
 159                 idx  = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
 160         nvol = ucontrol->value.integer.value[0];
 161         tmp = stac9460_get(ice, idx);
 162         ovol = 0x7f - (tmp & 0x7f);
 163         change = (ovol != nvol);
 164         if (change) {
 165                 stac9460_put(ice, idx, (0x7f - nvol) | (tmp & 0x80));
 166         }
 167         return change;
 168 }
 169
 170 /*
 171  * ADC mute control
 172  */
 173 #define stac9460_adc_mute_info          snd_ctl_boolean_stereo_info
 174
 175 static int stac9460_adc_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 176 {
 177         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 178         unsigned char val;
 179         int i;
 180
 181         for (i = 0; i < 2; ++i) {
 182                 val = stac9460_get(ice, STAC946X_MIC_L_VOLUME + i);
 183                 ucontrol->value.integer.value[i] = ~val>>7 & 0x1;
 184         }
 185
 186         return 0;
 187 }
 188
 189 static int stac9460_adc_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 190 {
 191         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 192         unsigned char new, old;
 193         int i, reg;
 194         int change;
 195
 196         for (i = 0; i < 2; ++i) {
 197                 reg = STAC946X_MIC_L_VOLUME + i;
 198                 old = stac9460_get(ice, reg);
 199                 new = (~ucontrol->value.integer.value[i]<<7&0x80) | (old&~0x80);
 200                 change = (new != old);
 201                 if (change)
 202                         stac9460_put(ice, reg, new);
 203         }
 204
 205         return change;
 206 }
 207
 208 /*
 209  * ADC gain mixer control
 210  */
 211 static int stac9460_adc_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 212 {
 213         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 214         uinfo->count = 2;
 215         uinfo->value.integer.min = 0;           /* 0dB */
 216         uinfo->value.integer.max = 0x0f;        /* 22.5dB */
 217         return 0;
 218 }
 219
 220 static int stac9460_adc_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 221 {
 222         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 223         int i, reg;
 224         unsigned char vol;
 225
 226         for (i = 0; i < 2; ++i) {
 227                 reg = STAC946X_MIC_L_VOLUME + i;
 228                 vol = stac9460_get(ice, reg) & 0x0f;
 229                 ucontrol->value.integer.value[i] = 0x0f - vol;
 230         }
 231
 232         return 0;
 233 }
 234
 235 static int stac9460_adc_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 236 {
 237         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 238         int i, reg;
 239         unsigned char ovol, nvol;
 240         int change;
 241
 242         for (i = 0; i < 2; ++i) {
 243                 reg = STAC946X_MIC_L_VOLUME + i;
 244                 nvol = ucontrol->value.integer.value[i];
 245                 ovol = 0x0f - stac9460_get(ice, reg);
 246                 change = ((ovol & 0x0f)  != nvol);
 247                 if (change)
 248                         stac9460_put(ice, reg, (0x0f - nvol) | (ovol & ~0x0f));
 249         }
 250
 251         return change;
 252 }
 253
 254 #if 0
 255 /*
 256  * Headphone Amplifier
 257  */
 258 static int aureon_set_headphone_amp(struct snd_ice1712 *ice, int enable)
 259 {
 260         unsigned int tmp, tmp2;
 261
 262         tmp2 = tmp = snd_ice1712_gpio_read(ice);
 263         if (enable)
 264                 tmp |= AUREON_HP_SEL;
 265         else
 266                 tmp &= ~ AUREON_HP_SEL;
 267         if (tmp != tmp2) {
 268                 snd_ice1712_gpio_write(ice, tmp);
 269                 return 1;
 270         }
 271         return 0;
 272 }
 273
 274 static int aureon_get_headphone_amp(struct snd_ice1712 *ice)
 275 {
 276         unsigned int tmp = snd_ice1712_gpio_read(ice);
 277
 278         return ( tmp & AUREON_HP_SEL )!= 0;
 279 }
 280
 281 #define aureon_bool_info        snd_ctl_boolean_mono_info
 282
 283 static int aureon_hpamp_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 284 {
 285         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 286
 287         ucontrol->value.integer.value[0] = aureon_get_headphone_amp(ice);
 288         return 0;
 289 }
 290
 291
 292 static int aureon_hpamp_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 293 {
 294         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 295
 296         return aureon_set_headphone_amp(ice,ucontrol->value.integer.value[0]);
 297 }
 298
 299 /*
 300  * Deemphasis
 301  */
 302 static int aureon_deemp_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 303 {
 304         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 305         ucontrol->value.integer.value[0] = (wm_get(ice, WM_DAC_CTRL2) & 0xf) == 0xf;
 306         return 0;
 307 }
 308
 309 static int aureon_deemp_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 310 {
 311         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 312         int temp, temp2;
 313         temp2 = temp = wm_get(ice, WM_DAC_CTRL2);
 314         if (ucontrol->value.integer.value[0])
 315                 temp |= 0xf;
 316         else
 317                 temp &= ~0xf;
 318         if (temp != temp2) {
 319                 wm_put(ice, WM_DAC_CTRL2, temp);
 320                 return 1;
 321         }
 322         return 0;
 323 }
 324
 325 /*
 326  * ADC Oversampling
 327  */
 328 static int aureon_oversampling_info(struct snd_kcontrol *k, struct snd_ctl_elem_info *uinfo)
 329 {
 330         static char *texts[2] = { "128x", "64x" };
 331
 332         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 333         uinfo->count = 1;
 334         uinfo->value.enumerated.items = 2;
 335
 336         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
 337                 uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
 338         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 339
 340         return 0;
 341 }
 342
 343 static int aureon_oversampling_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 344 {
 345         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 346         ucontrol->value.enumerated.item[0] = (wm_get(ice, WM_MASTER) & 0x8) == 0x8;
 347         return 0;
 348 }
 349
 350 static int aureon_oversampling_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 351 {
 352         int temp, temp2;
 353         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 354
 355         temp2 = temp = wm_get(ice, WM_MASTER);
 356
 357         if (ucontrol->value.enumerated.item[0])
 358                 temp |= 0x8;
 359         else
 360                 temp &= ~0x8;
 361
 362         if (temp != temp2) {
 363                 wm_put(ice, WM_MASTER, temp);
 364                 return 1;
 365         }
 366         return 0;
 367 }
 368 #endif
 369 static int stac9460_mic_sw_info(struct snd_kcontrol *kcontrol,
 370                                 struct snd_ctl_elem_info *uinfo)
 371 {
 372         static char *texts[2] = { "Line In", "Mic" };
 373
 374         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 375         uinfo->count = 1;
 376         uinfo->value.enumerated.items = 2;
 377
 378         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
 379                 uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
 380         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 381
 382         return 0;
 383 }
 384
 385
 386 static int stac9460_mic_sw_get(struct snd_kcontrol *kcontrol,
 387                         struct snd_ctl_elem_value *ucontrol)
 388 {
 389         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 390         unsigned char val;
 391
 392         val = stac9460_get(ice, STAC946X_GENERAL_PURPOSE);
 393         ucontrol->value.enumerated.item[0] = (val >> 7) & 0x1;
 394         return 0;
 395 }
 396
 397 static int stac9460_mic_sw_put(struct snd_kcontrol *kcontrol,
 398                         struct snd_ctl_elem_value *ucontrol)
 399 {
 400         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 401         unsigned char new, old;
 402         int change;
 403         old = stac9460_get(ice, STAC946X_GENERAL_PURPOSE);
 404         new = (ucontrol->value.enumerated.item[0] << 7 & 0x80) | (old & ~0x80);
 405         change = (new != old);
 406         if (change)
 407                 stac9460_put(ice, STAC946X_GENERAL_PURPOSE, new);
 408         return change;
 409 }
 410
 411 static const DECLARE_TLV_DB_SCALE(db_scale_dac, -19125, 75, 0);
 412 static const DECLARE_TLV_DB_SCALE(db_scale_adc, 0, 150, 0);
 413
 414 /*
 415  * mixers
 416  */
 417
 418 static struct snd_kcontrol_new stac_controls[] __devinitdata = {
 419         {
 420                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 421                 .name = "Master Playback Switch",
 422                 .info = stac9460_dac_mute_info,
 423                 .get = stac9460_dac_mute_get,
 424                 .put = stac9460_dac_mute_put,
 425                 .private_value = 1,
 426                 .tlv = { .p = db_scale_dac }
 427         },
 428         {
 429                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 430                 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
 431                            SNDRV_CTL_ELEM_ACCESS_TLV_READ),
 432                 .name = "Master Playback Volume",
 433                 .info = stac9460_dac_vol_info,
 434                 .get = stac9460_dac_vol_get,
 435                 .put = stac9460_dac_vol_put,
 436                 .private_value = 1,
 437                 .tlv = { .p = db_scale_dac }
 438         },
 439         {
 440                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 441                 .name = "DAC Switch",
 442                 .count = 6,
 443                 .info = stac9460_dac_mute_info,
 444                 .get = stac9460_dac_mute_get,
 445                 .put = stac9460_dac_mute_put,
 446         },
 447         {
 448                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 449                 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
 450                            SNDRV_CTL_ELEM_ACCESS_TLV_READ),
 451                 .name = "DAC Volume",
 452                 .count = 6,
 453                 .info = stac9460_dac_vol_info,
 454                 .get = stac9460_dac_vol_get,
 455                 .put = stac9460_dac_vol_put,
 456                 .tlv = { .p = db_scale_dac }
 457         },
 458         {
 459                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 460                 .name = "ADC Capture Switch",
 461                 .count = 1,
 462                 .info = stac9460_adc_mute_info,
 463                 .get = stac9460_adc_mute_get,
 464                 .put = stac9460_adc_mute_put,
 465
 466         },
 467         {
 468                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 469                 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
 470                            SNDRV_CTL_ELEM_ACCESS_TLV_READ),
 471                 .name = "ADC Capture Volume",
 472                 .count = 1,
 473                 .info = stac9460_adc_vol_info,
 474                 .get = stac9460_adc_vol_get,
 475                 .put = stac9460_adc_vol_put,
 476                 .tlv = { .p = db_scale_adc }
 477         },
 478         {
 479                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 480                 .name = "Analog Capture Input",
 481                 .info = stac9460_mic_sw_info,
 482                 .get = stac9460_mic_sw_get,
 483                 .put = stac9460_mic_sw_put,
 484
 485         },
 486 #if 0
 487         {
 488                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 489                 .name = "Capture Route",
 490                 .info = wm_adc_mux_info,
 491                 .get = wm_adc_mux_get,
 492                 .put = wm_adc_mux_put,
 493         },
 494         {
 495                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 496                 .name = "Headphone Amplifier Switch",
 497                 .info = aureon_bool_info,
 498                 .get = aureon_hpamp_get,
 499                 .put = aureon_hpamp_put
 500         },
 501         {
 502                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 503                 .name = "DAC Deemphasis Switch",
 504                 .info = aureon_bool_info,
 505                 .get = aureon_deemp_get,
 506                 .put = aureon_deemp_put
 507         },
 508         {
 509                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 510                 .name = "ADC Oversampling",
 511                 .info = aureon_oversampling_info,
 512                 .get = aureon_oversampling_get,
 513                 .put = aureon_oversampling_put
 514         },
 515 #endif
 516 };
 517
 518
 519 /* AK4114 - ICE1724 connections on Prodigy192 + MI/ODI/O */
 520 /* CDTO (pin 32) -- GPIO11 pin 86
 521  * CDTI (pin 33) -- GPIO10 pin 77
 522  * CCLK (pin 34) -- GPIO9 pin 76
 523  * CSN  (pin 35) -- GPIO8 pin 75
 524  */
 525 #define AK4114_ADDR     0x00 /* C1-C0: Chip Address
 526                               * (According to datasheet fixed to “00”)
 527                               */
 528
 529 /*
 530  * 4wire ak4114 protocol - writing data
 531  */
 532 static void write_data(struct snd_ice1712 *ice, unsigned int gpio,
 533                        unsigned int data, int idx)
 534 {
 535         for (; idx >= 0; idx--) {
 536                 /* drop clock */
 537                 gpio &= ~VT1724_PRODIGY192_CCLK;
 538                 snd_ice1712_gpio_write(ice, gpio);
 539                 udelay(1);
 540                 /* set data */
 541                 if (data & (1 << idx))
 542                         gpio |= VT1724_PRODIGY192_CDOUT;
 543                 else
 544                         gpio &= ~VT1724_PRODIGY192_CDOUT;
 545                 snd_ice1712_gpio_write(ice, gpio);
 546                 udelay(1);
 547                 /* raise clock */
 548                 gpio |= VT1724_PRODIGY192_CCLK;
 549                 snd_ice1712_gpio_write(ice, gpio);
 550                 udelay(1);
 551         }
 552 }
 553
 554 /*
 555  * 4wire ak4114 protocol - reading data
 556  */
 557 static unsigned char read_data(struct snd_ice1712 *ice, unsigned int gpio,
 558                                int idx)
 559 {
 560         unsigned char data = 0;
 561
 562         for (; idx >= 0; idx--) {
 563                 /* drop clock */
 564                 gpio &= ~VT1724_PRODIGY192_CCLK;
 565                 snd_ice1712_gpio_write(ice, gpio);
 566                 udelay(1);
 567                 /* read data */
 568                 if (snd_ice1712_gpio_read(ice) & VT1724_PRODIGY192_CDIN)
 569                         data |= (1 << idx);
 570                 udelay(1);
 571                 /* raise clock */
 572                 gpio |= VT1724_PRODIGY192_CCLK;
 573                 snd_ice1712_gpio_write(ice, gpio);
 574                 udelay(1);
 575         }
 576         return data;
 577 }
 578 /*
 579  * 4wire ak4114 protocol - starting sequence
 580  */
 581 static unsigned int prodigy192_4wire_start(struct snd_ice1712 *ice)
 582 {
 583         unsigned int tmp;
 584
 585         snd_ice1712_save_gpio_status(ice);
 586         tmp = snd_ice1712_gpio_read(ice);
 587
 588         tmp |= VT1724_PRODIGY192_CCLK; /* high at init */
 589         tmp &= ~VT1724_PRODIGY192_CS; /* drop chip select */
 590         snd_ice1712_gpio_write(ice, tmp);
 591         udelay(1);
 592         return tmp;
 593 }
 594
 595 /*
 596  * 4wire ak4114 protocol - final sequence
 597  */
 598 static void prodigy192_4wire_finish(struct snd_ice1712 *ice, unsigned int tmp)
 599 {
 600         tmp |= VT1724_PRODIGY192_CS; /* raise chip select */
 601         snd_ice1712_gpio_write(ice, tmp);
 602         udelay(1);
 603         snd_ice1712_restore_gpio_status(ice);
 604 }
 605
 606 /*
 607  * Write data to addr register of ak4114
 608  */
 609 static void prodigy192_ak4114_write(void *private_data, unsigned char addr,
 610                                unsigned char data)
 611 {
 612         struct snd_ice1712 *ice = private_data;
 613         unsigned int tmp, addrdata;
 614         tmp = prodigy192_4wire_start(ice);
 615         addrdata = (AK4114_ADDR << 6) | 0x20 | (addr & 0x1f);
 616         addrdata = (addrdata << 8) | data;
 617         write_data(ice, tmp, addrdata, 15);
 618         prodigy192_4wire_finish(ice, tmp);
 619 }
 620
 621 /*
 622  * Read data from addr register of ak4114
 623  */
 624 static unsigned char prodigy192_ak4114_read(void *private_data,
 625                                             unsigned char addr)
 626 {
 627         struct snd_ice1712 *ice = private_data;
 628         unsigned int tmp;
 629         unsigned char data;
 630
 631         tmp = prodigy192_4wire_start(ice);
 632         write_data(ice, tmp, (AK4114_ADDR << 6) | (addr & 0x1f), 7);
 633         data = read_data(ice, tmp, 7);
 634         prodigy192_4wire_finish(ice, tmp);
 635         return data;
 636 }
 637
 638
 639 static int ak4114_input_sw_info(struct snd_kcontrol *kcontrol,
 640                                 struct snd_ctl_elem_info *uinfo)
 641 {
 642         static char *texts[2] = { "Toslink", "Coax" };
 643
 644         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 645         uinfo->count = 1;
 646         uinfo->value.enumerated.items = 2;
 647         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
 648                 uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
 649         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 650         return 0;
 651 }
 652
 653
 654 static int ak4114_input_sw_get(struct snd_kcontrol *kcontrol,
 655                         struct snd_ctl_elem_value *ucontrol)
 656 {
 657         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 658         unsigned char val;
 659
 660         val = prodigy192_ak4114_read(ice, AK4114_REG_IO1);
 661         /* AK4114_IPS0 bit = 0 -> RX0 = Toslink
 662          * AK4114_IPS0 bit = 1 -> RX1 = Coax
 663          */
 664         ucontrol->value.enumerated.item[0] = (val & AK4114_IPS0) ? 1 : 0;
 665         return 0;
 666 }
 667
 668 static int ak4114_input_sw_put(struct snd_kcontrol *kcontrol,
 669                         struct snd_ctl_elem_value *ucontrol)
 670 {
 671         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 672         unsigned char new, old, itemvalue;
 673         int change;
 674
 675         old = prodigy192_ak4114_read(ice, AK4114_REG_IO1);
 676         /* AK4114_IPS0 could be any bit */
 677         itemvalue = (ucontrol->value.enumerated.item[0]) ? 0xff : 0x00;
 678
 679         new = (itemvalue & AK4114_IPS0) | (old & ~AK4114_IPS0);
 680         change = (new != old);
 681         if (change)
 682                 prodigy192_ak4114_write(ice, AK4114_REG_IO1, new);
 683         return change;
 684 }
 685
 686
 687 static struct snd_kcontrol_new ak4114_controls[] __devinitdata = {
 688         {
 689                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 690                 .name = "MIODIO IEC958 Capture Input",
 691                 .info = ak4114_input_sw_info,
 692                 .get = ak4114_input_sw_get,
 693                 .put = ak4114_input_sw_put,
 694
 695         }
 696 };
 697
 698
 699 static int prodigy192_ak4114_init(struct snd_ice1712 *ice)
 700 {
 701         static const unsigned char ak4114_init_vals[] = {
 702                 AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1,
 703                 /* ice1724 expects I2S and provides clock,
 704                  * DEM0 disables the deemphasis filter
 705                  */
 706                 AK4114_DIF_I24I2S | AK4114_DEM0 ,
 707                 AK4114_TX1E,
 708                 AK4114_EFH_1024 | AK4114_DIT, /* default input RX0 */
 709                 0,
 710                 0
 711         };
 712         static const unsigned char ak4114_init_txcsb[] = {
 713                 0x41, 0x02, 0x2c, 0x00, 0x00
 714         };
 715
 716         return snd_ak4114_create(ice->card,
 717                                  prodigy192_ak4114_read,
 718                                  prodigy192_ak4114_write,
 719                                  ak4114_init_vals, ak4114_init_txcsb,
 720                                  ice, &ice->spec.prodigy192.ak4114);
 721 }
 722
 723 static int __devinit prodigy192_add_controls(struct snd_ice1712 *ice)
 724 {
 725         unsigned int i;
 726         int err;
 727
 728         for (i = 0; i < ARRAY_SIZE(stac_controls); i++) {
 729                 err = snd_ctl_add(ice->card,
 730                                   snd_ctl_new1(&stac_controls[i], ice));
 731                 if (err < 0)
 732                         return err;
 733         }
 734         if (ice->spec.prodigy192.ak4114) {
 735                 /* ak4114 is connected */
 736                 for (i = 0; i < ARRAY_SIZE(ak4114_controls); i++) {
 737                         err = snd_ctl_add(ice->card,
 738                                           snd_ctl_new1(&ak4114_controls[i],
 739                                                        ice));
 740                         if (err < 0)
 741                                 return err;
 742                 }
 743                 err = snd_ak4114_build(ice->spec.prodigy192.ak4114,
 744                                 NULL, /* ak4114 in MIO/DI/O handles no IEC958 output */
 745                                 ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
 746                 if (err < 0)
 747                         return err;
 748         }
 749         return 0;
 750 }
 751
 752 /*
 753  * check for presence of MI/ODI/O add-on card with digital inputs
 754  */
 755 static int prodigy192_miodio_exists(struct snd_ice1712 *ice)
 756 {
 757
 758         unsigned char orig_value;
 759         const unsigned char test_data = 0xd1;   /* random value */
 760         unsigned char addr = AK4114_REG_INT0_MASK; /* random SAFE address */
 761         int exists = 0;
 762
 763         orig_value = prodigy192_ak4114_read(ice, addr);
 764         prodigy192_ak4114_write(ice, addr, test_data);
 765         if (prodigy192_ak4114_read(ice, addr) == test_data) {
 766                 /* ak4114 seems to communicate, apparently exists */
 767                 /* writing back original value */
 768                 prodigy192_ak4114_write(ice, addr, orig_value);
 769                 exists = 1;
 770         }
 771         return exists;
 772 }
 773
 774 /*
 775  * initialize the chip
 776  */
 777 static int __devinit prodigy192_init(struct snd_ice1712 *ice)
 778 {
 779         static const unsigned short stac_inits_prodigy[] = {
 780                 STAC946X_RESET, 0,
 781 /*              STAC946X_MASTER_VOLUME, 0,
 782                 STAC946X_LF_VOLUME, 0,
 783                 STAC946X_RF_VOLUME, 0,
 784                 STAC946X_LR_VOLUME, 0,
 785                 STAC946X_RR_VOLUME, 0,
 786                 STAC946X_CENTER_VOLUME, 0,
 787                 STAC946X_LFE_VOLUME, 0,*/
 788                 (unsigned short)-1
 789         };
 790         const unsigned short *p;
 791         int err = 0;
 792
 793         /* prodigy 192 */
 794         ice->num_total_dacs = 6;
 795         ice->num_total_adcs = 2;
 796         ice->vt1720 = 0;  /* ice1724, e.g. 23 GPIOs */
 797
 798         /* initialize codec */
 799         p = stac_inits_prodigy;
 800         for (; *p != (unsigned short)-1; p += 2)
 801                 stac9460_put(ice, p[0], p[1]);
 802
 803         /* MI/ODI/O add on card with AK4114 */
 804         if (prodigy192_miodio_exists(ice)) {
 805                 err = prodigy192_ak4114_init(ice);
 806                 /* from this moment if err = 0 then
 807                  * ice->spec.prodigy192.ak4114 should not be null
 808                  */
 809                 snd_printdd("AK4114 initialized with status %d\n", err);
 810         } else
 811                 snd_printdd("AK4114 not found\n");
 812         if (err < 0)
 813                 return err;
 814
 815         return 0;
 816 }
 817
 818
 819 /*
 820  * Aureon boards don't provide the EEPROM data except for the vendor IDs.
 821  * hence the driver needs to sets up it properly.
 822  */
 823
 824 static unsigned char prodigy71_eeprom[] __devinitdata = {
 825         [ICE_EEP2_SYSCONF]     = 0x6a,  /* 49MHz crystal, mpu401,
 826                                          * spdif-in+ 1 stereo ADC,
 827                                          * 3 stereo DACs
 828                                          */
 829         [ICE_EEP2_ACLINK]      = 0x80,  /* I2S */
 830         [ICE_EEP2_I2S]         = 0xf8,  /* vol, 96k, 24bit, 192k */
 831         [ICE_EEP2_SPDIF]       = 0xc3,  /* out-en, out-int, spdif-in */
 832         [ICE_EEP2_GPIO_DIR]    = 0xff,
 833         [ICE_EEP2_GPIO_DIR1]   = ~(VT1724_PRODIGY192_CDIN >> 8) ,
 834         [ICE_EEP2_GPIO_DIR2]   = 0xbf,
 835         [ICE_EEP2_GPIO_MASK]   = 0x00,
 836         [ICE_EEP2_GPIO_MASK1]  = 0x00,
 837         [ICE_EEP2_GPIO_MASK2]  = 0x00,
 838         [ICE_EEP2_GPIO_STATE]  = 0x00,
 839         [ICE_EEP2_GPIO_STATE1] = 0x00,
 840         [ICE_EEP2_GPIO_STATE2] = 0x10,  /* GPIO20: 0 = CD drive dig. input
 841                                          * passthrough,
 842                                          * 1 = SPDIF-OUT from ice1724
 843                                          */
 844 };
 845
 846
 847 /* entry point */
 848 struct snd_ice1712_card_info snd_vt1724_prodigy192_cards[] __devinitdata = {
 849         {
 850                 .subvendor = VT1724_SUBDEVICE_PRODIGY192VE,
 851                 .name = "Audiotrak Prodigy 192",
 852                 .model = "prodigy192",
 853                 .chip_init = prodigy192_init,
 854                 .build_controls = prodigy192_add_controls,
 855                 .eeprom_size = sizeof(prodigy71_eeprom),
 856                 .eeprom_data = prodigy71_eeprom,
 857         },
 858         { } /* terminator */
 859 };