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