linux/sound/pci/ice1712/prodigy192.c
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   1/*
   2 *   ALSA driver for ICEnsemble VT1724 (Envy24HT)
   3 *
   4 *   Lowlevel functions for AudioTrak Prodigy 192 cards
   5 *   Supported IEC958 input from optional MI/ODI/O add-on card.
   6 *
   7 *   Specifics (SW, HW):
   8 *   -------------------
   9 *      * 49.5MHz crystal
  10 *      * SPDIF-OUT on the card:
  11 *        - coax (through isolation transformer)/toslink supplied by
  12 *          74HC04 gates - 3 in parallel
  13 *        - output switched between on-board CD drive dig-out connector
  14 *          and ice1724 SPDTX pin, using 74HC02 NOR gates, controlled
  15 *          by GPIO20 (0 = CD dig-out, 1 = SPDTX)
  16 *      * SPDTX goes straight to MI/ODI/O card's SPDIF-OUT coax
  17 *
  18 *      * MI/ODI/O card: AK4114 based, used for iec958 input only
  19 *              - toslink input -> RX0
  20 *              - coax input -> RX1
  21 *              - 4wire protocol:
  22 *                      AK4114          ICE1724
  23 *                      ------------------------------
  24 *                      CDTO (pin 32) -- GPIO11 pin 86
  25 *                      CDTI (pin 33) -- GPIO10 pin 77
  26 *                      CCLK (pin 34) -- GPIO9 pin 76
  27 *                      CSN  (pin 35) -- GPIO8 pin 75
  28 *              - output data Mode 7 (24bit, I2S, slave)
  29 *              - both MCKO1 and MCKO2 of ak4114 are fed to FPGA, which
  30 *                outputs master clock to SPMCLKIN of ice1724.
  31 *                Experimentally I found out that only a combination of
  32 *                OCKS0=1, OCKS1=1 (128fs, 64fs output) and ice1724 -
  33 *                VT1724_MT_I2S_MCLK_128X=0 (256fs input) yields correct
  34 *                sampling rate. That means the the FPGA doubles the
  35 *                MCK01 rate.
  36 *
  37 *      Copyright (c) 2003 Takashi Iwai <tiwai@suse.de>
  38 *      Copyright (c) 2003 Dimitromanolakis Apostolos <apostol@cs.utoronto.ca>
  39 *      Copyright (c) 2004 Kouichi ONO <co2b@ceres.dti.ne.jp>
  40 *
  41 *   This program is free software; you can redistribute it and/or modify
  42 *   it under the terms of the GNU General Public License as published by
  43 *   the Free Software Foundation; either version 2 of the License, or
  44 *   (at your option) any later version.
  45 *
  46 *   This program is distributed in the hope that it will be useful,
  47 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  48 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  49 *   GNU General Public License for more details.
  50 *
  51 *   You should have received a copy of the GNU General Public License
  52 *   along with this program; if not, write to the Free Software
  53 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  54 *
  55 */      
  56
  57#include <asm/io.h>
  58#include <linux/delay.h>
  59#include <linux/interrupt.h>
  60#include <linux/init.h>
  61#include <linux/slab.h>
  62#include <sound/core.h>
  63
  64#include "ice1712.h"
  65#include "envy24ht.h"
  66#include "prodigy192.h"
  67#include "stac946x.h"
  68#include <sound/tlv.h>
  69
  70struct prodigy192_spec {
  71        struct ak4114 *ak4114;
  72        /* rate change needs atomic mute/unmute of all dacs*/
  73        struct mutex mute_mutex;
  74};
  75
  76static inline void stac9460_put(struct snd_ice1712 *ice, int reg, unsigned char val)
  77{
  78        snd_vt1724_write_i2c(ice, PRODIGY192_STAC9460_ADDR, reg, val);
  79}
  80
  81static inline unsigned char stac9460_get(struct snd_ice1712 *ice, int reg)
  82{
  83        return snd_vt1724_read_i2c(ice, PRODIGY192_STAC9460_ADDR, reg);
  84}
  85
  86/*
  87 * DAC mute control
  88 */
  89
  90/*
  91 * idx = STAC9460 volume register number, mute: 0 = mute, 1 = unmute
  92 */
  93static int stac9460_dac_mute(struct snd_ice1712 *ice, int idx,
  94                unsigned char mute)
  95{
  96        unsigned char new, old;
  97        int change;
  98        old = stac9460_get(ice, idx);
  99        new = (~mute << 7 & 0x80) | (old & ~0x80);
 100        change = (new != old);
 101        if (change)
 102                /*printk ("Volume register 0x%02x: 0x%02x\n", idx, new);*/
 103                stac9460_put(ice, idx, new);
 104        return change;
 105}
 106
 107#define stac9460_dac_mute_info          snd_ctl_boolean_mono_info
 108
 109static int stac9460_dac_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 110{
 111        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 112        unsigned char val;
 113        int idx;
 114
 115        if (kcontrol->private_value)
 116                idx = STAC946X_MASTER_VOLUME;
 117        else
 118                idx  = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
 119        val = stac9460_get(ice, idx);
 120        ucontrol->value.integer.value[0] = (~val >> 7) & 0x1;
 121        return 0;
 122}
 123
 124static int stac9460_dac_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 125{
 126        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 127        struct prodigy192_spec *spec = ice->spec;
 128        int idx, change;
 129
 130        if (kcontrol->private_value)
 131                idx = STAC946X_MASTER_VOLUME;
 132        else
 133                idx  = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
 134        /* due to possible conflicts with stac9460_set_rate_val, mutexing */
 135        mutex_lock(&spec->mute_mutex);
 136        /*
 137        printk(KERN_DEBUG "Mute put: reg 0x%02x, ctrl value: 0x%02x\n", idx,
 138               ucontrol->value.integer.value[0]);
 139        */
 140        change = stac9460_dac_mute(ice, idx, ucontrol->value.integer.value[0]);
 141        mutex_unlock(&spec->mute_mutex);
 142        return change;
 143}
 144
 145/*
 146 * DAC volume attenuation mixer control
 147 */
 148static int stac9460_dac_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 149{
 150        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 151        uinfo->count = 1;
 152        uinfo->value.integer.min = 0;                   /* mute */
 153        uinfo->value.integer.max = 0x7f;                /* 0dB */
 154        return 0;
 155}
 156
 157static int stac9460_dac_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 158{
 159        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 160        int idx;
 161        unsigned char vol;
 162
 163        if (kcontrol->private_value)
 164                idx = STAC946X_MASTER_VOLUME;
 165        else
 166                idx  = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
 167        vol = stac9460_get(ice, idx) & 0x7f;
 168        ucontrol->value.integer.value[0] = 0x7f - vol;
 169
 170        return 0;
 171}
 172
 173static int stac9460_dac_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 174{
 175        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 176        int idx;
 177        unsigned char tmp, ovol, nvol;
 178        int change;
 179
 180        if (kcontrol->private_value)
 181                idx = STAC946X_MASTER_VOLUME;
 182        else
 183                idx  = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id) + STAC946X_LF_VOLUME;
 184        nvol = ucontrol->value.integer.value[0];
 185        tmp = stac9460_get(ice, idx);
 186        ovol = 0x7f - (tmp & 0x7f);
 187        change = (ovol != nvol);
 188        if (change) {
 189                ovol =  (0x7f - nvol) | (tmp & 0x80);
 190                /*
 191                printk(KERN_DEBUG "DAC Volume: reg 0x%02x: 0x%02x\n",
 192                       idx, ovol);
 193                */
 194                stac9460_put(ice, idx, (0x7f - nvol) | (tmp & 0x80));
 195        }
 196        return change;
 197}
 198
 199/*
 200 * ADC mute control
 201 */
 202#define stac9460_adc_mute_info          snd_ctl_boolean_stereo_info
 203
 204static int stac9460_adc_mute_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 205{
 206        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 207        unsigned char val;
 208        int i;
 209
 210        for (i = 0; i < 2; ++i) {
 211                val = stac9460_get(ice, STAC946X_MIC_L_VOLUME + i);
 212                ucontrol->value.integer.value[i] = ~val>>7 & 0x1;
 213        }
 214
 215        return 0;
 216}
 217
 218static int stac9460_adc_mute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 219{
 220        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 221        unsigned char new, old;
 222        int i, reg;
 223        int change;
 224
 225        for (i = 0; i < 2; ++i) {
 226                reg = STAC946X_MIC_L_VOLUME + i;
 227                old = stac9460_get(ice, reg);
 228                new = (~ucontrol->value.integer.value[i]<<7&0x80) | (old&~0x80);
 229                change = (new != old);
 230                if (change)
 231                        stac9460_put(ice, reg, new);
 232        }
 233
 234        return change;
 235}
 236
 237/*
 238 * ADC gain mixer control
 239 */
 240static int stac9460_adc_vol_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 241{
 242        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 243        uinfo->count = 2;
 244        uinfo->value.integer.min = 0;           /* 0dB */
 245        uinfo->value.integer.max = 0x0f;        /* 22.5dB */
 246        return 0;
 247}
 248
 249static int stac9460_adc_vol_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 250{
 251        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 252        int i, reg;
 253        unsigned char vol;
 254
 255        for (i = 0; i < 2; ++i) {
 256                reg = STAC946X_MIC_L_VOLUME + i;
 257                vol = stac9460_get(ice, reg) & 0x0f;
 258                ucontrol->value.integer.value[i] = 0x0f - vol;
 259        }
 260
 261        return 0;
 262}
 263
 264static int stac9460_adc_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 265{
 266        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 267        int i, reg;
 268        unsigned char ovol, nvol;
 269        int change;
 270
 271        for (i = 0; i < 2; ++i) {
 272                reg = STAC946X_MIC_L_VOLUME + i;
 273                nvol = ucontrol->value.integer.value[i] & 0x0f;
 274                ovol = 0x0f - stac9460_get(ice, reg);
 275                change = ((ovol & 0x0f)  != nvol);
 276                if (change)
 277                        stac9460_put(ice, reg, (0x0f - nvol) | (ovol & ~0x0f));
 278        }
 279
 280        return change;
 281}
 282
 283static int stac9460_mic_sw_info(struct snd_kcontrol *kcontrol,
 284                                struct snd_ctl_elem_info *uinfo)
 285{
 286        static char *texts[2] = { "Line In", "Mic" };
 287
 288        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 289        uinfo->count = 1;
 290        uinfo->value.enumerated.items = 2;
 291
 292        if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
 293                uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
 294        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 295
 296        return 0;
 297}
 298
 299
 300static int stac9460_mic_sw_get(struct snd_kcontrol *kcontrol,
 301                        struct snd_ctl_elem_value *ucontrol)
 302{
 303        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 304        unsigned char val;
 305                
 306        val = stac9460_get(ice, STAC946X_GENERAL_PURPOSE);
 307        ucontrol->value.enumerated.item[0] = (val >> 7) & 0x1;
 308        return 0;
 309}
 310
 311static int stac9460_mic_sw_put(struct snd_kcontrol *kcontrol,
 312                        struct snd_ctl_elem_value *ucontrol)
 313{
 314        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 315        unsigned char new, old;
 316        int change;
 317        old = stac9460_get(ice, STAC946X_GENERAL_PURPOSE);
 318        new = (ucontrol->value.enumerated.item[0] << 7 & 0x80) | (old & ~0x80);
 319        change = (new != old);
 320        if (change)
 321                stac9460_put(ice, STAC946X_GENERAL_PURPOSE, new);
 322        return change;
 323}
 324/*
 325 * Handler for setting correct codec rate - called when rate change is detected
 326 */
 327static void stac9460_set_rate_val(struct snd_ice1712 *ice, unsigned int rate)
 328{
 329        unsigned char old, new;
 330        int idx;
 331        unsigned char changed[7];
 332        struct prodigy192_spec *spec = ice->spec;
 333
 334        if (rate == 0)  /* no hint - S/PDIF input is master, simply return */
 335                return;
 336        else if (rate <= 48000)
 337                new = 0x08;     /* 256x, base rate mode */
 338        else if (rate <= 96000)
 339                new = 0x11;     /* 256x, mid rate mode */
 340        else
 341                new = 0x12;     /* 128x, high rate mode */
 342        old = stac9460_get(ice, STAC946X_MASTER_CLOCKING);
 343        if (old == new)
 344                return;
 345        /* change detected, setting master clock, muting first */
 346        /* due to possible conflicts with mute controls - mutexing */
 347        mutex_lock(&spec->mute_mutex);
 348        /* we have to remember current mute status for each DAC */
 349        for (idx = 0; idx < 7 ; ++idx)
 350                changed[idx] = stac9460_dac_mute(ice,
 351                                STAC946X_MASTER_VOLUME + idx, 0);
 352        /*printk(KERN_DEBUG "Rate change: %d, new MC: 0x%02x\n", rate, new);*/
 353        stac9460_put(ice, STAC946X_MASTER_CLOCKING, new);
 354        udelay(10);
 355        /* unmuting - only originally unmuted dacs -
 356         * i.e. those changed when muting */
 357        for (idx = 0; idx < 7 ; ++idx) {
 358                if (changed[idx])
 359                        stac9460_dac_mute(ice, STAC946X_MASTER_VOLUME + idx, 1);
 360        }
 361        mutex_unlock(&spec->mute_mutex);
 362}
 363
 364
 365static const DECLARE_TLV_DB_SCALE(db_scale_dac, -19125, 75, 0);
 366static const DECLARE_TLV_DB_SCALE(db_scale_adc, 0, 150, 0);
 367
 368/*
 369 * mixers
 370 */
 371
 372static struct snd_kcontrol_new stac_controls[] __devinitdata = {
 373        {
 374                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 375                .name = "Master Playback Switch",
 376                .info = stac9460_dac_mute_info,
 377                .get = stac9460_dac_mute_get,
 378                .put = stac9460_dac_mute_put,
 379                .private_value = 1,
 380                .tlv = { .p = db_scale_dac }
 381        },
 382        {
 383                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 384                .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
 385                           SNDRV_CTL_ELEM_ACCESS_TLV_READ),
 386                .name = "Master Playback Volume",
 387                .info = stac9460_dac_vol_info,
 388                .get = stac9460_dac_vol_get,
 389                .put = stac9460_dac_vol_put,
 390                .private_value = 1,
 391                .tlv = { .p = db_scale_dac }
 392        },
 393        {
 394                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 395                .name = "DAC Switch",
 396                .count = 6,
 397                .info = stac9460_dac_mute_info,
 398                .get = stac9460_dac_mute_get,
 399                .put = stac9460_dac_mute_put,
 400        },
 401        {
 402                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 403                .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
 404                           SNDRV_CTL_ELEM_ACCESS_TLV_READ),
 405                .name = "DAC Volume",
 406                .count = 6,
 407                .info = stac9460_dac_vol_info,
 408                .get = stac9460_dac_vol_get,
 409                .put = stac9460_dac_vol_put,
 410                .tlv = { .p = db_scale_dac }
 411        },
 412        {
 413                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 414                .name = "ADC Capture Switch",
 415                .count = 1,
 416                .info = stac9460_adc_mute_info,
 417                .get = stac9460_adc_mute_get,
 418                .put = stac9460_adc_mute_put,
 419
 420        },
 421        {
 422                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 423                .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
 424                           SNDRV_CTL_ELEM_ACCESS_TLV_READ),
 425                .name = "ADC Capture Volume",
 426                .count = 1,
 427                .info = stac9460_adc_vol_info,
 428                .get = stac9460_adc_vol_get,
 429                .put = stac9460_adc_vol_put,
 430                .tlv = { .p = db_scale_adc }
 431        },
 432        {
 433                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 434                .name = "Analog Capture Input",
 435                .info = stac9460_mic_sw_info,
 436                .get = stac9460_mic_sw_get,
 437                .put = stac9460_mic_sw_put,
 438
 439        },
 440};
 441
 442/* AK4114 - ICE1724 connections on Prodigy192 + MI/ODI/O */
 443/* CDTO (pin 32) -- GPIO11 pin 86
 444 * CDTI (pin 33) -- GPIO10 pin 77
 445 * CCLK (pin 34) -- GPIO9 pin 76
 446 * CSN  (pin 35) -- GPIO8 pin 75
 447 */
 448#define AK4114_ADDR     0x00 /* C1-C0: Chip Address
 449                              * (According to datasheet fixed to \xE2\x80\x9C00\xE2\x80\x9D)
 450                              */
 451
 452/*
 453 * 4wire ak4114 protocol - writing data
 454 */
 455static void write_data(struct snd_ice1712 *ice, unsigned int gpio,
 456                       unsigned int data, int idx)
 457{
 458        for (; idx >= 0; idx--) {
 459                /* drop clock */
 460                gpio &= ~VT1724_PRODIGY192_CCLK;
 461                snd_ice1712_gpio_write(ice, gpio);
 462                udelay(1);
 463                /* set data */
 464                if (data & (1 << idx))
 465                        gpio |= VT1724_PRODIGY192_CDOUT;
 466                else
 467                        gpio &= ~VT1724_PRODIGY192_CDOUT;
 468                snd_ice1712_gpio_write(ice, gpio);
 469                udelay(1);
 470                /* raise clock */
 471                gpio |= VT1724_PRODIGY192_CCLK;
 472                snd_ice1712_gpio_write(ice, gpio);
 473                udelay(1);
 474        }
 475}
 476
 477/*
 478 * 4wire ak4114 protocol - reading data
 479 */
 480static unsigned char read_data(struct snd_ice1712 *ice, unsigned int gpio,
 481                               int idx)
 482{
 483        unsigned char data = 0;
 484
 485        for (; idx >= 0; idx--) {
 486                /* drop clock */
 487                gpio &= ~VT1724_PRODIGY192_CCLK;
 488                snd_ice1712_gpio_write(ice, gpio);
 489                udelay(1);
 490                /* read data */
 491                if (snd_ice1712_gpio_read(ice) & VT1724_PRODIGY192_CDIN)
 492                        data |= (1 << idx);
 493                udelay(1);
 494                /* raise clock */
 495                gpio |= VT1724_PRODIGY192_CCLK;
 496                snd_ice1712_gpio_write(ice, gpio);
 497                udelay(1);
 498        }
 499        return data;
 500}
 501/*
 502 * 4wire ak4114 protocol - starting sequence
 503 */
 504static unsigned int prodigy192_4wire_start(struct snd_ice1712 *ice)
 505{
 506        unsigned int tmp;
 507
 508        snd_ice1712_save_gpio_status(ice);
 509        tmp = snd_ice1712_gpio_read(ice);
 510
 511        tmp |= VT1724_PRODIGY192_CCLK; /* high at init */
 512        tmp &= ~VT1724_PRODIGY192_CS; /* drop chip select */
 513        snd_ice1712_gpio_write(ice, tmp);
 514        udelay(1);
 515        return tmp;
 516}
 517
 518/*
 519 * 4wire ak4114 protocol - final sequence
 520 */
 521static void prodigy192_4wire_finish(struct snd_ice1712 *ice, unsigned int tmp)
 522{
 523        tmp |= VT1724_PRODIGY192_CS; /* raise chip select */
 524        snd_ice1712_gpio_write(ice, tmp);
 525        udelay(1);
 526        snd_ice1712_restore_gpio_status(ice);
 527}
 528
 529/*
 530 * Write data to addr register of ak4114
 531 */
 532static void prodigy192_ak4114_write(void *private_data, unsigned char addr,
 533                               unsigned char data)
 534{
 535        struct snd_ice1712 *ice = private_data;
 536        unsigned int tmp, addrdata;
 537        tmp = prodigy192_4wire_start(ice);
 538        addrdata = (AK4114_ADDR << 6) | 0x20 | (addr & 0x1f);
 539        addrdata = (addrdata << 8) | data;
 540        write_data(ice, tmp, addrdata, 15);
 541        prodigy192_4wire_finish(ice, tmp);
 542}
 543
 544/*
 545 * Read data from addr register of ak4114
 546 */
 547static unsigned char prodigy192_ak4114_read(void *private_data,
 548                                            unsigned char addr)
 549{
 550        struct snd_ice1712 *ice = private_data;
 551        unsigned int tmp;
 552        unsigned char data;
 553
 554        tmp = prodigy192_4wire_start(ice);
 555        write_data(ice, tmp, (AK4114_ADDR << 6) | (addr & 0x1f), 7);
 556        data = read_data(ice, tmp, 7);
 557        prodigy192_4wire_finish(ice, tmp);
 558        return data;
 559}
 560
 561
 562static int ak4114_input_sw_info(struct snd_kcontrol *kcontrol,
 563                                struct snd_ctl_elem_info *uinfo)
 564{
 565        static char *texts[2] = { "Toslink", "Coax" };
 566
 567        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 568        uinfo->count = 1;
 569        uinfo->value.enumerated.items = 2;
 570        if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
 571                uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
 572        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 573        return 0;
 574}
 575
 576
 577static int ak4114_input_sw_get(struct snd_kcontrol *kcontrol,
 578                        struct snd_ctl_elem_value *ucontrol)
 579{
 580        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 581        unsigned char val;
 582                
 583        val = prodigy192_ak4114_read(ice, AK4114_REG_IO1);
 584        /* AK4114_IPS0 bit = 0 -> RX0 = Toslink
 585         * AK4114_IPS0 bit = 1 -> RX1 = Coax
 586         */
 587        ucontrol->value.enumerated.item[0] = (val & AK4114_IPS0) ? 1 : 0;
 588        return 0;
 589}
 590
 591static int ak4114_input_sw_put(struct snd_kcontrol *kcontrol,
 592                        struct snd_ctl_elem_value *ucontrol)
 593{
 594        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 595        unsigned char new, old, itemvalue;
 596        int change;
 597
 598        old = prodigy192_ak4114_read(ice, AK4114_REG_IO1);
 599        /* AK4114_IPS0 could be any bit */
 600        itemvalue = (ucontrol->value.enumerated.item[0]) ? 0xff : 0x00;
 601
 602        new = (itemvalue & AK4114_IPS0) | (old & ~AK4114_IPS0);
 603        change = (new != old);
 604        if (change)
 605                prodigy192_ak4114_write(ice, AK4114_REG_IO1, new);
 606        return change;
 607}
 608
 609
 610static struct snd_kcontrol_new ak4114_controls[] __devinitdata = {
 611        {
 612                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 613                .name = "MIODIO IEC958 Capture Input",
 614                .info = ak4114_input_sw_info,
 615                .get = ak4114_input_sw_get,
 616                .put = ak4114_input_sw_put,
 617
 618        }
 619};
 620
 621
 622static int prodigy192_ak4114_init(struct snd_ice1712 *ice)
 623{
 624        static const unsigned char ak4114_init_vals[] = {
 625                AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1,
 626                /* ice1724 expects I2S and provides clock,
 627                 * DEM0 disables the deemphasis filter
 628                 */
 629                AK4114_DIF_I24I2S | AK4114_DEM0 ,
 630                AK4114_TX1E,
 631                AK4114_EFH_1024 | AK4114_DIT, /* default input RX0 */
 632                0,
 633                0
 634        };
 635        static const unsigned char ak4114_init_txcsb[] = {
 636                0x41, 0x02, 0x2c, 0x00, 0x00
 637        };
 638        struct prodigy192_spec *spec = ice->spec;
 639        int err;
 640
 641        err = snd_ak4114_create(ice->card,
 642                                 prodigy192_ak4114_read,
 643                                 prodigy192_ak4114_write,
 644                                 ak4114_init_vals, ak4114_init_txcsb,
 645                                 ice, &spec->ak4114);
 646        if (err < 0)
 647                return err;
 648        /* AK4114 in Prodigy192 cannot detect external rate correctly.
 649         * No reason to stop capture stream due to incorrect checks */
 650        spec->ak4114->check_flags = AK4114_CHECK_NO_RATE;
 651        return 0;
 652}
 653
 654static void stac9460_proc_regs_read(struct snd_info_entry *entry,
 655                struct snd_info_buffer *buffer)
 656{
 657        struct snd_ice1712 *ice = entry->private_data;
 658        int reg, val;
 659        /* registers 0x0 - 0x14 */
 660        for (reg = 0; reg <= 0x15; reg++) {
 661                val = stac9460_get(ice, reg);
 662                snd_iprintf(buffer, "0x%02x = 0x%02x\n", reg, val);
 663        }
 664}
 665
 666
 667static void stac9460_proc_init(struct snd_ice1712 *ice)
 668{
 669        struct snd_info_entry *entry;
 670        if (!snd_card_proc_new(ice->card, "stac9460_codec", &entry))
 671                snd_info_set_text_ops(entry, ice, stac9460_proc_regs_read);
 672}
 673
 674
 675static int __devinit prodigy192_add_controls(struct snd_ice1712 *ice)
 676{
 677        struct prodigy192_spec *spec = ice->spec;
 678        unsigned int i;
 679        int err;
 680
 681        for (i = 0; i < ARRAY_SIZE(stac_controls); i++) {
 682                err = snd_ctl_add(ice->card,
 683                                  snd_ctl_new1(&stac_controls[i], ice));
 684                if (err < 0)
 685                        return err;
 686        }
 687        if (spec->ak4114) {
 688                /* ak4114 is connected */
 689                for (i = 0; i < ARRAY_SIZE(ak4114_controls); i++) {
 690                        err = snd_ctl_add(ice->card,
 691                                          snd_ctl_new1(&ak4114_controls[i],
 692                                                       ice));
 693                        if (err < 0)
 694                                return err;
 695                }
 696                err = snd_ak4114_build(spec->ak4114,
 697                                NULL, /* ak4114 in MIO/DI/O handles no IEC958 output */
 698                                ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
 699                if (err < 0)
 700                        return err;
 701        }
 702        stac9460_proc_init(ice);
 703        return 0;
 704}
 705
 706/*
 707 * check for presence of MI/ODI/O add-on card with digital inputs
 708 */
 709static int prodigy192_miodio_exists(struct snd_ice1712 *ice)
 710{
 711
 712        unsigned char orig_value;
 713        const unsigned char test_data = 0xd1;   /* random value */
 714        unsigned char addr = AK4114_REG_INT0_MASK; /* random SAFE address */
 715        int exists = 0;
 716
 717        orig_value = prodigy192_ak4114_read(ice, addr);
 718        prodigy192_ak4114_write(ice, addr, test_data);
 719        if (prodigy192_ak4114_read(ice, addr) == test_data) {
 720                /* ak4114 seems to communicate, apparently exists */
 721                /* writing back original value */
 722                prodigy192_ak4114_write(ice, addr, orig_value);
 723                exists = 1;
 724        }
 725        return exists;
 726}
 727
 728/*
 729 * initialize the chip
 730 */
 731static int __devinit prodigy192_init(struct snd_ice1712 *ice)
 732{
 733        static const unsigned short stac_inits_prodigy[] = {
 734                STAC946X_RESET, 0,
 735                STAC946X_MASTER_CLOCKING, 0x11,
 736/*              STAC946X_MASTER_VOLUME, 0,
 737                STAC946X_LF_VOLUME, 0,
 738                STAC946X_RF_VOLUME, 0,
 739                STAC946X_LR_VOLUME, 0,
 740                STAC946X_RR_VOLUME, 0,
 741                STAC946X_CENTER_VOLUME, 0,
 742                STAC946X_LFE_VOLUME, 0,*/
 743                (unsigned short)-1
 744        };
 745        const unsigned short *p;
 746        int err = 0;
 747        struct prodigy192_spec *spec;
 748
 749        /* prodigy 192 */
 750        ice->num_total_dacs = 6;
 751        ice->num_total_adcs = 2;
 752        ice->vt1720 = 0;  /* ice1724, e.g. 23 GPIOs */
 753        
 754        spec = kzalloc(sizeof(*spec), GFP_KERNEL);
 755        if (!spec)
 756                return -ENOMEM;
 757        ice->spec = spec;
 758        mutex_init(&spec->mute_mutex);
 759
 760        /* initialize codec */
 761        p = stac_inits_prodigy;
 762        for (; *p != (unsigned short)-1; p += 2)
 763                stac9460_put(ice, p[0], p[1]);
 764        ice->gpio.set_pro_rate = stac9460_set_rate_val;
 765
 766        /* MI/ODI/O add on card with AK4114 */
 767        if (prodigy192_miodio_exists(ice)) {
 768                err = prodigy192_ak4114_init(ice);
 769                /* from this moment if err = 0 then
 770                 * spec->ak4114 should not be null
 771                 */
 772                snd_printdd("AK4114 initialized with status %d\n", err);
 773        } else
 774                snd_printdd("AK4114 not found\n");
 775        if (err < 0)
 776                return err;
 777
 778        return 0;
 779}
 780
 781
 782/*
 783 * Aureon boards don't provide the EEPROM data except for the vendor IDs.
 784 * hence the driver needs to sets up it properly.
 785 */
 786
 787static unsigned char prodigy71_eeprom[] __devinitdata = {
 788        [ICE_EEP2_SYSCONF]     = 0x6a,  /* 49MHz crystal, mpu401,
 789                                         * spdif-in+ 1 stereo ADC,
 790                                         * 3 stereo DACs
 791                                         */
 792        [ICE_EEP2_ACLINK]      = 0x80,  /* I2S */
 793        [ICE_EEP2_I2S]         = 0xf8,  /* vol, 96k, 24bit, 192k */
 794        [ICE_EEP2_SPDIF]       = 0xc3,  /* out-en, out-int, spdif-in */
 795        [ICE_EEP2_GPIO_DIR]    = 0xff,
 796        [ICE_EEP2_GPIO_DIR1]   = ~(VT1724_PRODIGY192_CDIN >> 8) ,
 797        [ICE_EEP2_GPIO_DIR2]   = 0xbf,
 798        [ICE_EEP2_GPIO_MASK]   = 0x00,
 799        [ICE_EEP2_GPIO_MASK1]  = 0x00,
 800        [ICE_EEP2_GPIO_MASK2]  = 0x00,
 801        [ICE_EEP2_GPIO_STATE]  = 0x00,
 802        [ICE_EEP2_GPIO_STATE1] = 0x00,
 803        [ICE_EEP2_GPIO_STATE2] = 0x10,  /* GPIO20: 0 = CD drive dig. input
 804                                         * passthrough,
 805                                         * 1 = SPDIF-OUT from ice1724
 806                                         */
 807};
 808
 809
 810/* entry point */
 811struct snd_ice1712_card_info snd_vt1724_prodigy192_cards[] __devinitdata = {
 812        {
 813                .subvendor = VT1724_SUBDEVICE_PRODIGY192VE,
 814                .name = "Audiotrak Prodigy 192",
 815                .model = "prodigy192",
 816                .chip_init = prodigy192_init,
 817                .build_controls = prodigy192_add_controls,
 818                .eeprom_size = sizeof(prodigy71_eeprom),
 819                .eeprom_data = prodigy71_eeprom,
 820        },
 821        { } /* terminator */
 822};
 823