root/sound/pci/ice1712/prodigy192.c

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DEFINITIONS

This source file includes following definitions.
  1. stac9460_put
  2. stac9460_get
  3. stac9460_dac_mute
  4. stac9460_dac_mute_get
  5. stac9460_dac_mute_put
  6. stac9460_dac_vol_info
  7. stac9460_dac_vol_get
  8. stac9460_dac_vol_put
  9. stac9460_adc_mute_get
  10. stac9460_adc_mute_put
  11. stac9460_adc_vol_info
  12. stac9460_adc_vol_get
  13. stac9460_adc_vol_put
  14. stac9460_mic_sw_info
  15. stac9460_mic_sw_get
  16. stac9460_mic_sw_put
  17. stac9460_set_rate_val
  18. write_data
  19. read_data
  20. prodigy192_4wire_start
  21. prodigy192_4wire_finish
  22. prodigy192_ak4114_write
  23. prodigy192_ak4114_read
  24. ak4114_input_sw_info
  25. ak4114_input_sw_get
  26. ak4114_input_sw_put
  27. prodigy192_ak4114_init
  28. stac9460_proc_regs_read
  29. stac9460_proc_init
  30. prodigy192_add_controls
  31. prodigy192_miodio_exists
  32. prodigy192_init
   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *   ALSA driver for ICEnsemble VT1724 (Envy24HT)
   4  *
   5  *   Lowlevel functions for AudioTrak Prodigy 192 cards
   6  *   Supported IEC958 input from optional MI/ODI/O add-on card.
   7  *
   8  *   Specifics (SW, HW):
   9  *   -------------------
  10  *      * 49.5MHz crystal
  11  *      * SPDIF-OUT on the card:
  12  *        - coax (through isolation transformer)/toslink supplied by
  13  *          74HC04 gates - 3 in parallel
  14  *        - output switched between on-board CD drive dig-out connector
  15  *          and ice1724 SPDTX pin, using 74HC02 NOR gates, controlled
  16  *          by GPIO20 (0 = CD dig-out, 1 = SPDTX)
  17  *      * SPDTX goes straight to MI/ODI/O card's SPDIF-OUT coax
  18  *
  19  *      * MI/ODI/O card: AK4114 based, used for iec958 input only
  20  *              - toslink input -> RX0
  21  *              - coax input -> RX1
  22  *              - 4wire protocol:
  23  *                      AK4114          ICE1724
  24  *                      ------------------------------
  25  *                      CDTO (pin 32) -- GPIO11 pin 86
  26  *                      CDTI (pin 33) -- GPIO10 pin 77
  27  *                      CCLK (pin 34) -- GPIO9 pin 76
  28  *                      CSN  (pin 35) -- GPIO8 pin 75
  29  *              - output data Mode 7 (24bit, I2S, slave)
  30  *              - both MCKO1 and MCKO2 of ak4114 are fed to FPGA, which
  31  *                outputs master clock to SPMCLKIN of ice1724.
  32  *                Experimentally I found out that only a combination of
  33  *                OCKS0=1, OCKS1=1 (128fs, 64fs output) and ice1724 -
  34  *                VT1724_MT_I2S_MCLK_128X=0 (256fs input) yields correct
  35  *                sampling rate. That means the the FPGA doubles the
  36  *                MCK01 rate.
  37  *
  38  *      Copyright (c) 2003 Takashi Iwai <tiwai@suse.de>
  39  *      Copyright (c) 2003 Dimitromanolakis Apostolos <apostol@cs.utoronto.ca>
  40  *      Copyright (c) 2004 Kouichi ONO <co2b@ceres.dti.ne.jp>
  41  */      
  42 
  43 #include <linux/delay.h>
  44 #include <linux/interrupt.h>
  45 #include <linux/init.h>
  46 #include <linux/slab.h>
  47 #include <sound/core.h>
  48 
  49 #include "ice1712.h"
  50 #include "envy24ht.h"
  51 #include "prodigy192.h"
  52 #include "stac946x.h"
  53 #include <sound/tlv.h>
  54 
  55 struct prodigy192_spec {
  56         struct ak4114 *ak4114;
  57         /* rate change needs atomic mute/unmute of all dacs*/
  58         struct mutex mute_mutex;
  59 };
  60 
  61 static inline void stac9460_put(struct snd_ice1712 *ice, int reg, unsigned char val)
  62 {
  63         snd_vt1724_write_i2c(ice, PRODIGY192_STAC9460_ADDR, reg, val);
  64 }
  65 
  66 static inline unsigned char stac9460_get(struct snd_ice1712 *ice, int reg)
  67 {
  68         return snd_vt1724_read_i2c(ice, PRODIGY192_STAC9460_ADDR, reg);
  69 }
  70 
  71 /*
  72  * DAC mute control
  73  */
  74 
  75 /*
  76  * idx = STAC9460 volume register number, mute: 0 = mute, 1 = unmute
  77  */
  78 static int stac9460_dac_mute(struct snd_ice1712 *ice, int idx,
  79                 unsigned char mute)
  80 {
  81         unsigned char new, old;
  82         int change;
  83         old = stac9460_get(ice, idx);
  84         new = (~mute << 7 & 0x80) | (old & ~0x80);
  85         change = (new != old);
  86         if (change)
  87                 /* dev_dbg(ice->card->dev, "Volume register 0x%02x: 0x%02x\n", idx, new);*/
  88                 stac9460_put(ice, idx, new);
  89         return change;
  90 }
  91 
  92 #define stac9460_dac_mute_info          snd_ctl_boolean_mono_info
  93 
  94 static int stac9460_dac_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  95 {
  96         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
  97         unsigned char val;
  98         int idx;
  99 
 100         if (kcontrol->private_value)
 101                 idx = STAC946X_MASTER_VOLUME;
 102         else
 103                 idx  = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
 104         val = stac9460_get(ice, idx);
 105         ucontrol->value.integer.value[0] = (~val >> 7) & 0x1;
 106         return 0;
 107 }
 108 
 109 static int stac9460_dac_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 110 {
 111         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 112         struct prodigy192_spec *spec = ice->spec;
 113         int idx, change;
 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         /* due to possible conflicts with stac9460_set_rate_val, mutexing */
 120         mutex_lock(&spec->mute_mutex);
 121         /*
 122         dev_dbg(ice->card->dev, "Mute put: reg 0x%02x, ctrl value: 0x%02x\n", idx,
 123                ucontrol->value.integer.value[0]);
 124         */
 125         change = stac9460_dac_mute(ice, idx, ucontrol->value.integer.value[0]);
 126         mutex_unlock(&spec->mute_mutex);
 127         return change;
 128 }
 129 
 130 /*
 131  * DAC volume attenuation mixer control
 132  */
 133 static int stac9460_dac_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 134 {
 135         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 136         uinfo->count = 1;
 137         uinfo->value.integer.min = 0;                   /* mute */
 138         uinfo->value.integer.max = 0x7f;                /* 0dB */
 139         return 0;
 140 }
 141 
 142 static int stac9460_dac_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 143 {
 144         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 145         int idx;
 146         unsigned char vol;
 147 
 148         if (kcontrol->private_value)
 149                 idx = STAC946X_MASTER_VOLUME;
 150         else
 151                 idx  = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
 152         vol = stac9460_get(ice, idx) & 0x7f;
 153         ucontrol->value.integer.value[0] = 0x7f - vol;
 154 
 155         return 0;
 156 }
 157 
 158 static int stac9460_dac_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 159 {
 160         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 161         int idx;
 162         unsigned char tmp, ovol, nvol;
 163         int change;
 164 
 165         if (kcontrol->private_value)
 166                 idx = STAC946X_MASTER_VOLUME;
 167         else
 168                 idx  = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
 169         nvol = ucontrol->value.integer.value[0];
 170         tmp = stac9460_get(ice, idx);
 171         ovol = 0x7f - (tmp & 0x7f);
 172         change = (ovol != nvol);
 173         if (change) {
 174                 ovol =  (0x7f - nvol) | (tmp & 0x80);
 175                 /*
 176                 dev_dbg(ice->card->dev, "DAC Volume: reg 0x%02x: 0x%02x\n",
 177                        idx, ovol);
 178                 */
 179                 stac9460_put(ice, idx, (0x7f - nvol) | (tmp & 0x80));
 180         }
 181         return change;
 182 }
 183 
 184 /*
 185  * ADC mute control
 186  */
 187 #define stac9460_adc_mute_info          snd_ctl_boolean_stereo_info
 188 
 189 static int stac9460_adc_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 190 {
 191         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 192         unsigned char val;
 193         int i;
 194 
 195         for (i = 0; i < 2; ++i) {
 196                 val = stac9460_get(ice, STAC946X_MIC_L_VOLUME + i);
 197                 ucontrol->value.integer.value[i] = ~val>>7 & 0x1;
 198         }
 199 
 200         return 0;
 201 }
 202 
 203 static int stac9460_adc_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 204 {
 205         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 206         unsigned char new, old;
 207         int i, reg;
 208         int change;
 209 
 210         for (i = 0; i < 2; ++i) {
 211                 reg = STAC946X_MIC_L_VOLUME + i;
 212                 old = stac9460_get(ice, reg);
 213                 new = (~ucontrol->value.integer.value[i]<<7&0x80) | (old&~0x80);
 214                 change = (new != old);
 215                 if (change)
 216                         stac9460_put(ice, reg, new);
 217         }
 218 
 219         return change;
 220 }
 221 
 222 /*
 223  * ADC gain mixer control
 224  */
 225 static int stac9460_adc_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 226 {
 227         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 228         uinfo->count = 2;
 229         uinfo->value.integer.min = 0;           /* 0dB */
 230         uinfo->value.integer.max = 0x0f;        /* 22.5dB */
 231         return 0;
 232 }
 233 
 234 static int stac9460_adc_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 235 {
 236         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 237         int i, reg;
 238         unsigned char vol;
 239 
 240         for (i = 0; i < 2; ++i) {
 241                 reg = STAC946X_MIC_L_VOLUME + i;
 242                 vol = stac9460_get(ice, reg) & 0x0f;
 243                 ucontrol->value.integer.value[i] = 0x0f - vol;
 244         }
 245 
 246         return 0;
 247 }
 248 
 249 static int stac9460_adc_vol_put(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 ovol, nvol;
 254         int change;
 255 
 256         for (i = 0; i < 2; ++i) {
 257                 reg = STAC946X_MIC_L_VOLUME + i;
 258                 nvol = ucontrol->value.integer.value[i] & 0x0f;
 259                 ovol = 0x0f - stac9460_get(ice, reg);
 260                 change = ((ovol & 0x0f)  != nvol);
 261                 if (change)
 262                         stac9460_put(ice, reg, (0x0f - nvol) | (ovol & ~0x0f));
 263         }
 264 
 265         return change;
 266 }
 267 
 268 static int stac9460_mic_sw_info(struct snd_kcontrol *kcontrol,
 269                                 struct snd_ctl_elem_info *uinfo)
 270 {
 271         static const char * const texts[2] = { "Line In", "Mic" };
 272 
 273         return snd_ctl_enum_info(uinfo, 1, 2, texts);
 274 }
 275 
 276 
 277 static int stac9460_mic_sw_get(struct snd_kcontrol *kcontrol,
 278                         struct snd_ctl_elem_value *ucontrol)
 279 {
 280         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 281         unsigned char val;
 282                 
 283         val = stac9460_get(ice, STAC946X_GENERAL_PURPOSE);
 284         ucontrol->value.enumerated.item[0] = (val >> 7) & 0x1;
 285         return 0;
 286 }
 287 
 288 static int stac9460_mic_sw_put(struct snd_kcontrol *kcontrol,
 289                         struct snd_ctl_elem_value *ucontrol)
 290 {
 291         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 292         unsigned char new, old;
 293         int change;
 294         old = stac9460_get(ice, STAC946X_GENERAL_PURPOSE);
 295         new = (ucontrol->value.enumerated.item[0] << 7 & 0x80) | (old & ~0x80);
 296         change = (new != old);
 297         if (change)
 298                 stac9460_put(ice, STAC946X_GENERAL_PURPOSE, new);
 299         return change;
 300 }
 301 /*
 302  * Handler for setting correct codec rate - called when rate change is detected
 303  */
 304 static void stac9460_set_rate_val(struct snd_ice1712 *ice, unsigned int rate)
 305 {
 306         unsigned char old, new;
 307         int idx;
 308         unsigned char changed[7];
 309         struct prodigy192_spec *spec = ice->spec;
 310 
 311         if (rate == 0)  /* no hint - S/PDIF input is master, simply return */
 312                 return;
 313         else if (rate <= 48000)
 314                 new = 0x08;     /* 256x, base rate mode */
 315         else if (rate <= 96000)
 316                 new = 0x11;     /* 256x, mid rate mode */
 317         else
 318                 new = 0x12;     /* 128x, high rate mode */
 319         old = stac9460_get(ice, STAC946X_MASTER_CLOCKING);
 320         if (old == new)
 321                 return;
 322         /* change detected, setting master clock, muting first */
 323         /* due to possible conflicts with mute controls - mutexing */
 324         mutex_lock(&spec->mute_mutex);
 325         /* we have to remember current mute status for each DAC */
 326         for (idx = 0; idx < 7 ; ++idx)
 327                 changed[idx] = stac9460_dac_mute(ice,
 328                                 STAC946X_MASTER_VOLUME + idx, 0);
 329         /*dev_dbg(ice->card->dev, "Rate change: %d, new MC: 0x%02x\n", rate, new);*/
 330         stac9460_put(ice, STAC946X_MASTER_CLOCKING, new);
 331         udelay(10);
 332         /* unmuting - only originally unmuted dacs -
 333          * i.e. those changed when muting */
 334         for (idx = 0; idx < 7 ; ++idx) {
 335                 if (changed[idx])
 336                         stac9460_dac_mute(ice, STAC946X_MASTER_VOLUME + idx, 1);
 337         }
 338         mutex_unlock(&spec->mute_mutex);
 339 }
 340 
 341 
 342 static const DECLARE_TLV_DB_SCALE(db_scale_dac, -19125, 75, 0);
 343 static const DECLARE_TLV_DB_SCALE(db_scale_adc, 0, 150, 0);
 344 
 345 /*
 346  * mixers
 347  */
 348 
 349 static struct snd_kcontrol_new stac_controls[] = {
 350         {
 351                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 352                 .name = "Master Playback Switch",
 353                 .info = stac9460_dac_mute_info,
 354                 .get = stac9460_dac_mute_get,
 355                 .put = stac9460_dac_mute_put,
 356                 .private_value = 1,
 357                 .tlv = { .p = db_scale_dac }
 358         },
 359         {
 360                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 361                 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
 362                            SNDRV_CTL_ELEM_ACCESS_TLV_READ),
 363                 .name = "Master Playback Volume",
 364                 .info = stac9460_dac_vol_info,
 365                 .get = stac9460_dac_vol_get,
 366                 .put = stac9460_dac_vol_put,
 367                 .private_value = 1,
 368                 .tlv = { .p = db_scale_dac }
 369         },
 370         {
 371                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 372                 .name = "DAC Switch",
 373                 .count = 6,
 374                 .info = stac9460_dac_mute_info,
 375                 .get = stac9460_dac_mute_get,
 376                 .put = stac9460_dac_mute_put,
 377         },
 378         {
 379                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 380                 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
 381                            SNDRV_CTL_ELEM_ACCESS_TLV_READ),
 382                 .name = "DAC Volume",
 383                 .count = 6,
 384                 .info = stac9460_dac_vol_info,
 385                 .get = stac9460_dac_vol_get,
 386                 .put = stac9460_dac_vol_put,
 387                 .tlv = { .p = db_scale_dac }
 388         },
 389         {
 390                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 391                 .name = "ADC Capture Switch",
 392                 .count = 1,
 393                 .info = stac9460_adc_mute_info,
 394                 .get = stac9460_adc_mute_get,
 395                 .put = stac9460_adc_mute_put,
 396 
 397         },
 398         {
 399                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 400                 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
 401                            SNDRV_CTL_ELEM_ACCESS_TLV_READ),
 402                 .name = "ADC Capture Volume",
 403                 .count = 1,
 404                 .info = stac9460_adc_vol_info,
 405                 .get = stac9460_adc_vol_get,
 406                 .put = stac9460_adc_vol_put,
 407                 .tlv = { .p = db_scale_adc }
 408         },
 409         {
 410                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 411                 .name = "Analog Capture Input",
 412                 .info = stac9460_mic_sw_info,
 413                 .get = stac9460_mic_sw_get,
 414                 .put = stac9460_mic_sw_put,
 415 
 416         },
 417 };
 418 
 419 /* AK4114 - ICE1724 connections on Prodigy192 + MI/ODI/O */
 420 /* CDTO (pin 32) -- GPIO11 pin 86
 421  * CDTI (pin 33) -- GPIO10 pin 77
 422  * CCLK (pin 34) -- GPIO9 pin 76
 423  * CSN  (pin 35) -- GPIO8 pin 75
 424  */
 425 #define AK4114_ADDR     0x00 /* C1-C0: Chip Address
 426                               * (According to datasheet fixed to “00”)
 427                               */
 428 
 429 /*
 430  * 4wire ak4114 protocol - writing data
 431  */
 432 static void write_data(struct snd_ice1712 *ice, unsigned int gpio,
 433                        unsigned int data, int idx)
 434 {
 435         for (; idx >= 0; idx--) {
 436                 /* drop clock */
 437                 gpio &= ~VT1724_PRODIGY192_CCLK;
 438                 snd_ice1712_gpio_write(ice, gpio);
 439                 udelay(1);
 440                 /* set data */
 441                 if (data & (1 << idx))
 442                         gpio |= VT1724_PRODIGY192_CDOUT;
 443                 else
 444                         gpio &= ~VT1724_PRODIGY192_CDOUT;
 445                 snd_ice1712_gpio_write(ice, gpio);
 446                 udelay(1);
 447                 /* raise clock */
 448                 gpio |= VT1724_PRODIGY192_CCLK;
 449                 snd_ice1712_gpio_write(ice, gpio);
 450                 udelay(1);
 451         }
 452 }
 453 
 454 /*
 455  * 4wire ak4114 protocol - reading data
 456  */
 457 static unsigned char read_data(struct snd_ice1712 *ice, unsigned int gpio,
 458                                int idx)
 459 {
 460         unsigned char data = 0;
 461 
 462         for (; idx >= 0; idx--) {
 463                 /* drop clock */
 464                 gpio &= ~VT1724_PRODIGY192_CCLK;
 465                 snd_ice1712_gpio_write(ice, gpio);
 466                 udelay(1);
 467                 /* read data */
 468                 if (snd_ice1712_gpio_read(ice) & VT1724_PRODIGY192_CDIN)
 469                         data |= (1 << idx);
 470                 udelay(1);
 471                 /* raise clock */
 472                 gpio |= VT1724_PRODIGY192_CCLK;
 473                 snd_ice1712_gpio_write(ice, gpio);
 474                 udelay(1);
 475         }
 476         return data;
 477 }
 478 /*
 479  * 4wire ak4114 protocol - starting sequence
 480  */
 481 static unsigned int prodigy192_4wire_start(struct snd_ice1712 *ice)
 482 {
 483         unsigned int tmp;
 484 
 485         snd_ice1712_save_gpio_status(ice);
 486         tmp = snd_ice1712_gpio_read(ice);
 487 
 488         tmp |= VT1724_PRODIGY192_CCLK; /* high at init */
 489         tmp &= ~VT1724_PRODIGY192_CS; /* drop chip select */
 490         snd_ice1712_gpio_write(ice, tmp);
 491         udelay(1);
 492         return tmp;
 493 }
 494 
 495 /*
 496  * 4wire ak4114 protocol - final sequence
 497  */
 498 static void prodigy192_4wire_finish(struct snd_ice1712 *ice, unsigned int tmp)
 499 {
 500         tmp |= VT1724_PRODIGY192_CS; /* raise chip select */
 501         snd_ice1712_gpio_write(ice, tmp);
 502         udelay(1);
 503         snd_ice1712_restore_gpio_status(ice);
 504 }
 505 
 506 /*
 507  * Write data to addr register of ak4114
 508  */
 509 static void prodigy192_ak4114_write(void *private_data, unsigned char addr,
 510                                unsigned char data)
 511 {
 512         struct snd_ice1712 *ice = private_data;
 513         unsigned int tmp, addrdata;
 514         tmp = prodigy192_4wire_start(ice);
 515         addrdata = (AK4114_ADDR << 6) | 0x20 | (addr & 0x1f);
 516         addrdata = (addrdata << 8) | data;
 517         write_data(ice, tmp, addrdata, 15);
 518         prodigy192_4wire_finish(ice, tmp);
 519 }
 520 
 521 /*
 522  * Read data from addr register of ak4114
 523  */
 524 static unsigned char prodigy192_ak4114_read(void *private_data,
 525                                             unsigned char addr)
 526 {
 527         struct snd_ice1712 *ice = private_data;
 528         unsigned int tmp;
 529         unsigned char data;
 530 
 531         tmp = prodigy192_4wire_start(ice);
 532         write_data(ice, tmp, (AK4114_ADDR << 6) | (addr & 0x1f), 7);
 533         data = read_data(ice, tmp, 7);
 534         prodigy192_4wire_finish(ice, tmp);
 535         return data;
 536 }
 537 
 538 
 539 static int ak4114_input_sw_info(struct snd_kcontrol *kcontrol,
 540                                 struct snd_ctl_elem_info *uinfo)
 541 {
 542         static const char * const texts[2] = { "Toslink", "Coax" };
 543 
 544         return snd_ctl_enum_info(uinfo, 1, 2, texts);
 545 }
 546 
 547 
 548 static int ak4114_input_sw_get(struct snd_kcontrol *kcontrol,
 549                         struct snd_ctl_elem_value *ucontrol)
 550 {
 551         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 552         unsigned char val;
 553                 
 554         val = prodigy192_ak4114_read(ice, AK4114_REG_IO1);
 555         /* AK4114_IPS0 bit = 0 -> RX0 = Toslink
 556          * AK4114_IPS0 bit = 1 -> RX1 = Coax
 557          */
 558         ucontrol->value.enumerated.item[0] = (val & AK4114_IPS0) ? 1 : 0;
 559         return 0;
 560 }
 561 
 562 static int ak4114_input_sw_put(struct snd_kcontrol *kcontrol,
 563                         struct snd_ctl_elem_value *ucontrol)
 564 {
 565         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 566         unsigned char new, old, itemvalue;
 567         int change;
 568 
 569         old = prodigy192_ak4114_read(ice, AK4114_REG_IO1);
 570         /* AK4114_IPS0 could be any bit */
 571         itemvalue = (ucontrol->value.enumerated.item[0]) ? 0xff : 0x00;
 572 
 573         new = (itemvalue & AK4114_IPS0) | (old & ~AK4114_IPS0);
 574         change = (new != old);
 575         if (change)
 576                 prodigy192_ak4114_write(ice, AK4114_REG_IO1, new);
 577         return change;
 578 }
 579 
 580 
 581 static struct snd_kcontrol_new ak4114_controls[] = {
 582         {
 583                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 584                 .name = "MIODIO IEC958 Capture Input",
 585                 .info = ak4114_input_sw_info,
 586                 .get = ak4114_input_sw_get,
 587                 .put = ak4114_input_sw_put,
 588 
 589         }
 590 };
 591 
 592 
 593 static int prodigy192_ak4114_init(struct snd_ice1712 *ice)
 594 {
 595         static const unsigned char ak4114_init_vals[] = {
 596                 AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1,
 597                 /* ice1724 expects I2S and provides clock,
 598                  * DEM0 disables the deemphasis filter
 599                  */
 600                 AK4114_DIF_I24I2S | AK4114_DEM0 ,
 601                 AK4114_TX1E,
 602                 AK4114_EFH_1024 | AK4114_DIT, /* default input RX0 */
 603                 0,
 604                 0
 605         };
 606         static const unsigned char ak4114_init_txcsb[] = {
 607                 0x41, 0x02, 0x2c, 0x00, 0x00
 608         };
 609         struct prodigy192_spec *spec = ice->spec;
 610         int err;
 611 
 612         err = snd_ak4114_create(ice->card,
 613                                  prodigy192_ak4114_read,
 614                                  prodigy192_ak4114_write,
 615                                  ak4114_init_vals, ak4114_init_txcsb,
 616                                  ice, &spec->ak4114);
 617         if (err < 0)
 618                 return err;
 619         /* AK4114 in Prodigy192 cannot detect external rate correctly.
 620          * No reason to stop capture stream due to incorrect checks */
 621         spec->ak4114->check_flags = AK4114_CHECK_NO_RATE;
 622         return 0;
 623 }
 624 
 625 static void stac9460_proc_regs_read(struct snd_info_entry *entry,
 626                 struct snd_info_buffer *buffer)
 627 {
 628         struct snd_ice1712 *ice = entry->private_data;
 629         int reg, val;
 630         /* registers 0x0 - 0x14 */
 631         for (reg = 0; reg <= 0x15; reg++) {
 632                 val = stac9460_get(ice, reg);
 633                 snd_iprintf(buffer, "0x%02x = 0x%02x\n", reg, val);
 634         }
 635 }
 636 
 637 
 638 static void stac9460_proc_init(struct snd_ice1712 *ice)
 639 {
 640         snd_card_ro_proc_new(ice->card, "stac9460_codec", ice,
 641                              stac9460_proc_regs_read);
 642 }
 643 
 644 
 645 static int prodigy192_add_controls(struct snd_ice1712 *ice)
 646 {
 647         struct prodigy192_spec *spec = ice->spec;
 648         unsigned int i;
 649         int err;
 650 
 651         for (i = 0; i < ARRAY_SIZE(stac_controls); i++) {
 652                 err = snd_ctl_add(ice->card,
 653                                   snd_ctl_new1(&stac_controls[i], ice));
 654                 if (err < 0)
 655                         return err;
 656         }
 657         if (spec->ak4114) {
 658                 /* ak4114 is connected */
 659                 for (i = 0; i < ARRAY_SIZE(ak4114_controls); i++) {
 660                         err = snd_ctl_add(ice->card,
 661                                           snd_ctl_new1(&ak4114_controls[i],
 662                                                        ice));
 663                         if (err < 0)
 664                                 return err;
 665                 }
 666                 err = snd_ak4114_build(spec->ak4114,
 667                                 NULL, /* ak4114 in MIO/DI/O handles no IEC958 output */
 668                                 ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
 669                 if (err < 0)
 670                         return err;
 671         }
 672         stac9460_proc_init(ice);
 673         return 0;
 674 }
 675 
 676 /*
 677  * check for presence of MI/ODI/O add-on card with digital inputs
 678  */
 679 static int prodigy192_miodio_exists(struct snd_ice1712 *ice)
 680 {
 681 
 682         unsigned char orig_value;
 683         const unsigned char test_data = 0xd1;   /* random value */
 684         unsigned char addr = AK4114_REG_INT0_MASK; /* random SAFE address */
 685         int exists = 0;
 686 
 687         orig_value = prodigy192_ak4114_read(ice, addr);
 688         prodigy192_ak4114_write(ice, addr, test_data);
 689         if (prodigy192_ak4114_read(ice, addr) == test_data) {
 690                 /* ak4114 seems to communicate, apparently exists */
 691                 /* writing back original value */
 692                 prodigy192_ak4114_write(ice, addr, orig_value);
 693                 exists = 1;
 694         }
 695         return exists;
 696 }
 697 
 698 /*
 699  * initialize the chip
 700  */
 701 static int prodigy192_init(struct snd_ice1712 *ice)
 702 {
 703         static const unsigned short stac_inits_prodigy[] = {
 704                 STAC946X_RESET, 0,
 705                 STAC946X_MASTER_CLOCKING, 0x11,
 706 /*              STAC946X_MASTER_VOLUME, 0,
 707                 STAC946X_LF_VOLUME, 0,
 708                 STAC946X_RF_VOLUME, 0,
 709                 STAC946X_LR_VOLUME, 0,
 710                 STAC946X_RR_VOLUME, 0,
 711                 STAC946X_CENTER_VOLUME, 0,
 712                 STAC946X_LFE_VOLUME, 0,*/
 713                 (unsigned short)-1
 714         };
 715         const unsigned short *p;
 716         int err = 0;
 717         struct prodigy192_spec *spec;
 718 
 719         /* prodigy 192 */
 720         ice->num_total_dacs = 6;
 721         ice->num_total_adcs = 2;
 722         ice->vt1720 = 0;  /* ice1724, e.g. 23 GPIOs */
 723         
 724         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
 725         if (!spec)
 726                 return -ENOMEM;
 727         ice->spec = spec;
 728         mutex_init(&spec->mute_mutex);
 729 
 730         /* initialize codec */
 731         p = stac_inits_prodigy;
 732         for (; *p != (unsigned short)-1; p += 2)
 733                 stac9460_put(ice, p[0], p[1]);
 734         ice->gpio.set_pro_rate = stac9460_set_rate_val;
 735 
 736         /* MI/ODI/O add on card with AK4114 */
 737         if (prodigy192_miodio_exists(ice)) {
 738                 err = prodigy192_ak4114_init(ice);
 739                 /* from this moment if err = 0 then
 740                  * spec->ak4114 should not be null
 741                  */
 742                 dev_dbg(ice->card->dev,
 743                         "AK4114 initialized with status %d\n", err);
 744         } else
 745                 dev_dbg(ice->card->dev, "AK4114 not found\n");
 746 
 747         return err;
 748 }
 749 
 750 
 751 /*
 752  * Aureon boards don't provide the EEPROM data except for the vendor IDs.
 753  * hence the driver needs to sets up it properly.
 754  */
 755 
 756 static unsigned char prodigy71_eeprom[] = {
 757         [ICE_EEP2_SYSCONF]     = 0x6a,  /* 49MHz crystal, mpu401,
 758                                          * spdif-in+ 1 stereo ADC,
 759                                          * 3 stereo DACs
 760                                          */
 761         [ICE_EEP2_ACLINK]      = 0x80,  /* I2S */
 762         [ICE_EEP2_I2S]         = 0xf8,  /* vol, 96k, 24bit, 192k */
 763         [ICE_EEP2_SPDIF]       = 0xc3,  /* out-en, out-int, spdif-in */
 764         [ICE_EEP2_GPIO_DIR]    = 0xff,
 765         [ICE_EEP2_GPIO_DIR1]   = ~(VT1724_PRODIGY192_CDIN >> 8) ,
 766         [ICE_EEP2_GPIO_DIR2]   = 0xbf,
 767         [ICE_EEP2_GPIO_MASK]   = 0x00,
 768         [ICE_EEP2_GPIO_MASK1]  = 0x00,
 769         [ICE_EEP2_GPIO_MASK2]  = 0x00,
 770         [ICE_EEP2_GPIO_STATE]  = 0x00,
 771         [ICE_EEP2_GPIO_STATE1] = 0x00,
 772         [ICE_EEP2_GPIO_STATE2] = 0x10,  /* GPIO20: 0 = CD drive dig. input
 773                                          * passthrough,
 774                                          * 1 = SPDIF-OUT from ice1724
 775                                          */
 776 };
 777 
 778 
 779 /* entry point */
 780 struct snd_ice1712_card_info snd_vt1724_prodigy192_cards[] = {
 781         {
 782                 .subvendor = VT1724_SUBDEVICE_PRODIGY192VE,
 783                 .name = "Audiotrak Prodigy 192",
 784                 .model = "prodigy192",
 785                 .chip_init = prodigy192_init,
 786                 .build_controls = prodigy192_add_controls,
 787                 .eeprom_size = sizeof(prodigy71_eeprom),
 788                 .eeprom_data = prodigy71_eeprom,
 789         },
 790         { } /* terminator */
 791 };
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