LXR linux/sound/pci/ice1712/prodigy192.c

   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 that 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
  55struct prodigy192_spec {
  56        struct ak4114 *ak4114;
  57        /* rate change needs atomic mute/unmute of all dacs*/
  58        struct mutex mute_mutex;
  59};
  60
  61static 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
  66static 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 */
  78static 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
  94static 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
 109static 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 */
 133static 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
 142static 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
 158static 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
 189static 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
 203static 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 */
 225static 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
 234static 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
 249static 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
 268static 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
 277static 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
 288static 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 */
 304static 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
 342static const DECLARE_TLV_DB_SCALE(db_scale_dac, -19125, 75, 0);
 343static const DECLARE_TLV_DB_SCALE(db_scale_adc, 0, 150, 0);
 344
 345/*
 346 * mixers
 347 */
 348
 349static const 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 */
 432static 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 */
 457static 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 */
 481static 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 */
 498static 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 */
 509static 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 */
 524static 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
 539static 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
 548static 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
 562static 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
 581static const 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
 593static 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
 625static 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
 638static 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
 645static 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 */
 679static 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 */
 701static 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
 756static const 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 */
 780struct 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};
 792