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                /*printk ("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        printk(KERN_DEBUG "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                printk(KERN_DEBUG "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        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 288        uinfo->count = 1;
 289        uinfo->value.enumerated.items = 2;
 290
 291        if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
 292                uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
 293        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 294
 295        return 0;
 296}
 297
 298
 299static int stac9460_mic_sw_get(struct snd_kcontrol *kcontrol,
 300                        struct snd_ctl_elem_value *ucontrol)
 301{
 302        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 303        unsigned char val;
 304                
 305        val = stac9460_get(ice, STAC946X_GENERAL_PURPOSE);
 306        ucontrol->value.enumerated.item[0] = (val >> 7) & 0x1;
 307        return 0;
 308}
 309
 310static int stac9460_mic_sw_put(struct snd_kcontrol *kcontrol,
 311                        struct snd_ctl_elem_value *ucontrol)
 312{
 313        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 314        unsigned char new, old;
 315        int change;
 316        old = stac9460_get(ice, STAC946X_GENERAL_PURPOSE);
 317        new = (ucontrol->value.enumerated.item[0] << 7 & 0x80) | (old & ~0x80);
 318        change = (new != old);
 319        if (change)
 320                stac9460_put(ice, STAC946X_GENERAL_PURPOSE, new);
 321        return change;
 322}
 323/*
 324 * Handler for setting correct codec rate - called when rate change is detected
 325 */
 326static void stac9460_set_rate_val(struct snd_ice1712 *ice, unsigned int rate)
 327{
 328        unsigned char old, new;
 329        int idx;
 330        unsigned char changed[7];
 331        struct prodigy192_spec *spec = ice->spec;
 332
 333        if (rate == 0)  /* no hint - S/PDIF input is master, simply return */
 334                return;
 335        else if (rate <= 48000)
 336                new = 0x08;     /* 256x, base rate mode */
 337        else if (rate <= 96000)
 338                new = 0x11;     /* 256x, mid rate mode */
 339        else
 340                new = 0x12;     /* 128x, high rate mode */
 341        old = stac9460_get(ice, STAC946X_MASTER_CLOCKING);
 342        if (old == new)
 343                return;
 344        /* change detected, setting master clock, muting first */
 345        /* due to possible conflicts with mute controls - mutexing */
 346        mutex_lock(&spec->mute_mutex);
 347        /* we have to remember current mute status for each DAC */
 348        for (idx = 0; idx < 7 ; ++idx)
 349                changed[idx] = stac9460_dac_mute(ice,
 350                                STAC946X_MASTER_VOLUME + idx, 0);
 351        /*printk(KERN_DEBUG "Rate change: %d, new MC: 0x%02x\n", rate, new);*/
 352        stac9460_put(ice, STAC946X_MASTER_CLOCKING, new);
 353        udelay(10);
 354        /* unmuting - only originally unmuted dacs -
 355         * i.e. those changed when muting */
 356        for (idx = 0; idx < 7 ; ++idx) {
 357                if (changed[idx])
 358                        stac9460_dac_mute(ice, STAC946X_MASTER_VOLUME + idx, 1);
 359        }
 360        mutex_unlock(&spec->mute_mutex);
 361}
 362
 363
 364static const DECLARE_TLV_DB_SCALE(db_scale_dac, -19125, 75, 0);
 365static const DECLARE_TLV_DB_SCALE(db_scale_adc, 0, 150, 0);
 366
 367/*
 368 * mixers
 369 */
 370
 371static struct snd_kcontrol_new stac_controls[] = {
 372        {
 373                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 374                .name = "Master Playback Switch",
 375                .info = stac9460_dac_mute_info,
 376                .get = stac9460_dac_mute_get,
 377                .put = stac9460_dac_mute_put,
 378                .private_value = 1,
 379                .tlv = { .p = db_scale_dac }
 380        },
 381        {
 382                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 383                .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
 384                           SNDRV_CTL_ELEM_ACCESS_TLV_READ),
 385                .name = "Master Playback Volume",
 386                .info = stac9460_dac_vol_info,
 387                .get = stac9460_dac_vol_get,
 388                .put = stac9460_dac_vol_put,
 389                .private_value = 1,
 390                .tlv = { .p = db_scale_dac }
 391        },
 392        {
 393                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 394                .name = "DAC Switch",
 395                .count = 6,
 396                .info = stac9460_dac_mute_info,
 397                .get = stac9460_dac_mute_get,
 398                .put = stac9460_dac_mute_put,
 399        },
 400        {
 401                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 402                .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
 403                           SNDRV_CTL_ELEM_ACCESS_TLV_READ),
 404                .name = "DAC Volume",
 405                .count = 6,
 406                .info = stac9460_dac_vol_info,
 407                .get = stac9460_dac_vol_get,
 408                .put = stac9460_dac_vol_put,
 409                .tlv = { .p = db_scale_dac }
 410        },
 411        {
 412                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 413                .name = "ADC Capture Switch",
 414                .count = 1,
 415                .info = stac9460_adc_mute_info,
 416                .get = stac9460_adc_mute_get,
 417                .put = stac9460_adc_mute_put,
 418
 419        },
 420        {
 421                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 422                .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
 423                           SNDRV_CTL_ELEM_ACCESS_TLV_READ),
 424                .name = "ADC Capture Volume",
 425                .count = 1,
 426                .info = stac9460_adc_vol_info,
 427                .get = stac9460_adc_vol_get,
 428                .put = stac9460_adc_vol_put,
 429                .tlv = { .p = db_scale_adc }
 430        },
 431        {
 432                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 433                .name = "Analog Capture Input",
 434                .info = stac9460_mic_sw_info,
 435                .get = stac9460_mic_sw_get,
 436                .put = stac9460_mic_sw_put,
 437
 438        },
 439};
 440
 441/* AK4114 - ICE1724 connections on Prodigy192 + MI/ODI/O */
 442/* CDTO (pin 32) -- GPIO11 pin 86
 443 * CDTI (pin 33) -- GPIO10 pin 77
 444 * CCLK (pin 34) -- GPIO9 pin 76
 445 * CSN  (pin 35) -- GPIO8 pin 75
 446 */
 447#define AK4114_ADDR     0x00 /* C1-C0: Chip Address
 448                              * (According to datasheet fixed to “00”)
 449                              */
 450
 451/*
 452 * 4wire ak4114 protocol - writing data
 453 */
 454static void write_data(struct snd_ice1712 *ice, unsigned int gpio,
 455                       unsigned int data, int idx)
 456{
 457        for (; idx >= 0; idx--) {
 458                /* drop clock */
 459                gpio &= ~VT1724_PRODIGY192_CCLK;
 460                snd_ice1712_gpio_write(ice, gpio);
 461                udelay(1);
 462                /* set data */
 463                if (data & (1 << idx))
 464                        gpio |= VT1724_PRODIGY192_CDOUT;
 465                else
 466                        gpio &= ~VT1724_PRODIGY192_CDOUT;
 467                snd_ice1712_gpio_write(ice, gpio);
 468                udelay(1);
 469                /* raise clock */
 470                gpio |= VT1724_PRODIGY192_CCLK;
 471                snd_ice1712_gpio_write(ice, gpio);
 472                udelay(1);
 473        }
 474}
 475
 476/*
 477 * 4wire ak4114 protocol - reading data
 478 */
 479static unsigned char read_data(struct snd_ice1712 *ice, unsigned int gpio,
 480                               int idx)
 481{
 482        unsigned char data = 0;
 483
 484        for (; idx >= 0; idx--) {
 485                /* drop clock */
 486                gpio &= ~VT1724_PRODIGY192_CCLK;
 487                snd_ice1712_gpio_write(ice, gpio);
 488                udelay(1);
 489                /* read data */
 490                if (snd_ice1712_gpio_read(ice) & VT1724_PRODIGY192_CDIN)
 491                        data |= (1 << idx);
 492                udelay(1);
 493                /* raise clock */
 494                gpio |= VT1724_PRODIGY192_CCLK;
 495                snd_ice1712_gpio_write(ice, gpio);
 496                udelay(1);
 497        }
 498        return data;
 499}
 500/*
 501 * 4wire ak4114 protocol - starting sequence
 502 */
 503static unsigned int prodigy192_4wire_start(struct snd_ice1712 *ice)
 504{
 505        unsigned int tmp;
 506
 507        snd_ice1712_save_gpio_status(ice);
 508        tmp = snd_ice1712_gpio_read(ice);
 509
 510        tmp |= VT1724_PRODIGY192_CCLK; /* high at init */
 511        tmp &= ~VT1724_PRODIGY192_CS; /* drop chip select */
 512        snd_ice1712_gpio_write(ice, tmp);
 513        udelay(1);
 514        return tmp;
 515}
 516
 517/*
 518 * 4wire ak4114 protocol - final sequence
 519 */
 520static void prodigy192_4wire_finish(struct snd_ice1712 *ice, unsigned int tmp)
 521{
 522        tmp |= VT1724_PRODIGY192_CS; /* raise chip select */
 523        snd_ice1712_gpio_write(ice, tmp);
 524        udelay(1);
 525        snd_ice1712_restore_gpio_status(ice);
 526}
 527
 528/*
 529 * Write data to addr register of ak4114
 530 */
 531static void prodigy192_ak4114_write(void *private_data, unsigned char addr,
 532                               unsigned char data)
 533{
 534        struct snd_ice1712 *ice = private_data;
 535        unsigned int tmp, addrdata;
 536        tmp = prodigy192_4wire_start(ice);
 537        addrdata = (AK4114_ADDR << 6) | 0x20 | (addr & 0x1f);
 538        addrdata = (addrdata << 8) | data;
 539        write_data(ice, tmp, addrdata, 15);
 540        prodigy192_4wire_finish(ice, tmp);
 541}
 542
 543/*
 544 * Read data from addr register of ak4114
 545 */
 546static unsigned char prodigy192_ak4114_read(void *private_data,
 547                                            unsigned char addr)
 548{
 549        struct snd_ice1712 *ice = private_data;
 550        unsigned int tmp;
 551        unsigned char data;
 552
 553        tmp = prodigy192_4wire_start(ice);
 554        write_data(ice, tmp, (AK4114_ADDR << 6) | (addr & 0x1f), 7);
 555        data = read_data(ice, tmp, 7);
 556        prodigy192_4wire_finish(ice, tmp);
 557        return data;
 558}
 559
 560
 561static int ak4114_input_sw_info(struct snd_kcontrol *kcontrol,
 562                                struct snd_ctl_elem_info *uinfo)
 563{
 564        static const char * const texts[2] = { "Toslink", "Coax" };
 565
 566        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 567        uinfo->count = 1;
 568        uinfo->value.enumerated.items = 2;
 569        if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
 570                uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
 571        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 572        return 0;
 573}
 574
 575
 576static int ak4114_input_sw_get(struct snd_kcontrol *kcontrol,
 577                        struct snd_ctl_elem_value *ucontrol)
 578{
 579        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 580        unsigned char val;
 581                
 582        val = prodigy192_ak4114_read(ice, AK4114_REG_IO1);
 583        /* AK4114_IPS0 bit = 0 -> RX0 = Toslink
 584         * AK4114_IPS0 bit = 1 -> RX1 = Coax
 585         */
 586        ucontrol->value.enumerated.item[0] = (val & AK4114_IPS0) ? 1 : 0;
 587        return 0;
 588}
 589
 590static int ak4114_input_sw_put(struct snd_kcontrol *kcontrol,
 591                        struct snd_ctl_elem_value *ucontrol)
 592{
 593        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 594        unsigned char new, old, itemvalue;
 595        int change;
 596
 597        old = prodigy192_ak4114_read(ice, AK4114_REG_IO1);
 598        /* AK4114_IPS0 could be any bit */
 599        itemvalue = (ucontrol->value.enumerated.item[0]) ? 0xff : 0x00;
 600
 601        new = (itemvalue & AK4114_IPS0) | (old & ~AK4114_IPS0);
 602        change = (new != old);
 603        if (change)
 604                prodigy192_ak4114_write(ice, AK4114_REG_IO1, new);
 605        return change;
 606}
 607
 608
 609static struct snd_kcontrol_new ak4114_controls[] = {
 610        {
 611                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 612                .name = "MIODIO IEC958 Capture Input",
 613                .info = ak4114_input_sw_info,
 614                .get = ak4114_input_sw_get,
 615                .put = ak4114_input_sw_put,
 616
 617        }
 618};
 619
 620
 621static int prodigy192_ak4114_init(struct snd_ice1712 *ice)
 622{
 623        static const unsigned char ak4114_init_vals[] = {
 624                AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1,
 625                /* ice1724 expects I2S and provides clock,
 626                 * DEM0 disables the deemphasis filter
 627                 */
 628                AK4114_DIF_I24I2S | AK4114_DEM0 ,
 629                AK4114_TX1E,
 630                AK4114_EFH_1024 | AK4114_DIT, /* default input RX0 */
 631                0,
 632                0
 633        };
 634        static const unsigned char ak4114_init_txcsb[] = {
 635                0x41, 0x02, 0x2c, 0x00, 0x00
 636        };
 637        struct prodigy192_spec *spec = ice->spec;
 638        int err;
 639
 640        err = snd_ak4114_create(ice->card,
 641                                 prodigy192_ak4114_read,
 642                                 prodigy192_ak4114_write,
 643                                 ak4114_init_vals, ak4114_init_txcsb,
 644                                 ice, &spec->ak4114);
 645        if (err < 0)
 646                return err;
 647        /* AK4114 in Prodigy192 cannot detect external rate correctly.
 648         * No reason to stop capture stream due to incorrect checks */
 649        spec->ak4114->check_flags = AK4114_CHECK_NO_RATE;
 650        return 0;
 651}
 652
 653static void stac9460_proc_regs_read(struct snd_info_entry *entry,
 654                struct snd_info_buffer *buffer)
 655{
 656        struct snd_ice1712 *ice = entry->private_data;
 657        int reg, val;
 658        /* registers 0x0 - 0x14 */
 659        for (reg = 0; reg <= 0x15; reg++) {
 660                val = stac9460_get(ice, reg);
 661                snd_iprintf(buffer, "0x%02x = 0x%02x\n", reg, val);
 662        }
 663}
 664
 665
 666static void stac9460_proc_init(struct snd_ice1712 *ice)
 667{
 668        struct snd_info_entry *entry;
 669        if (!snd_card_proc_new(ice->card, "stac9460_codec", &entry))
 670                snd_info_set_text_ops(entry, ice, stac9460_proc_regs_read);
 671}
 672
 673
 674static int prodigy192_add_controls(struct snd_ice1712 *ice)
 675{
 676        struct prodigy192_spec *spec = ice->spec;
 677        unsigned int i;
 678        int err;
 679
 680        for (i = 0; i < ARRAY_SIZE(stac_controls); i++) {
 681                err = snd_ctl_add(ice->card,
 682                                  snd_ctl_new1(&stac_controls[i], ice));
 683                if (err < 0)
 684                        return err;
 685        }
 686        if (spec->ak4114) {
 687                /* ak4114 is connected */
 688                for (i = 0; i < ARRAY_SIZE(ak4114_controls); i++) {
 689                        err = snd_ctl_add(ice->card,
 690                                          snd_ctl_new1(&ak4114_controls[i],
 691                                                       ice));
 692                        if (err < 0)
 693                                return err;
 694                }
 695                err = snd_ak4114_build(spec->ak4114,
 696                                NULL, /* ak4114 in MIO/DI/O handles no IEC958 output */
 697                                ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
 698                if (err < 0)
 699                        return err;
 700        }
 701        stac9460_proc_init(ice);
 702        return 0;
 703}
 704
 705/*
 706 * check for presence of MI/ODI/O add-on card with digital inputs
 707 */
 708static int prodigy192_miodio_exists(struct snd_ice1712 *ice)
 709{
 710
 711        unsigned char orig_value;
 712        const unsigned char test_data = 0xd1;   /* random value */
 713        unsigned char addr = AK4114_REG_INT0_MASK; /* random SAFE address */
 714        int exists = 0;
 715
 716        orig_value = prodigy192_ak4114_read(ice, addr);
 717        prodigy192_ak4114_write(ice, addr, test_data);
 718        if (prodigy192_ak4114_read(ice, addr) == test_data) {
 719                /* ak4114 seems to communicate, apparently exists */
 720                /* writing back original value */
 721                prodigy192_ak4114_write(ice, addr, orig_value);
 722                exists = 1;
 723        }
 724        return exists;
 725}
 726
 727/*
 728 * initialize the chip
 729 */
 730static int prodigy192_init(struct snd_ice1712 *ice)
 731{
 732        static const unsigned short stac_inits_prodigy[] = {
 733                STAC946X_RESET, 0,
 734                STAC946X_MASTER_CLOCKING, 0x11,
 735/*              STAC946X_MASTER_VOLUME, 0,
 736                STAC946X_LF_VOLUME, 0,
 737                STAC946X_RF_VOLUME, 0,
 738                STAC946X_LR_VOLUME, 0,
 739                STAC946X_RR_VOLUME, 0,
 740                STAC946X_CENTER_VOLUME, 0,
 741                STAC946X_LFE_VOLUME, 0,*/
 742                (unsigned short)-1
 743        };
 744        const unsigned short *p;
 745        int err = 0;
 746        struct prodigy192_spec *spec;
 747
 748        /* prodigy 192 */
 749        ice->num_total_dacs = 6;
 750        ice->num_total_adcs = 2;
 751        ice->vt1720 = 0;  /* ice1724, e.g. 23 GPIOs */
 752        
 753        spec = kzalloc(sizeof(*spec), GFP_KERNEL);
 754        if (!spec)
 755                return -ENOMEM;
 756        ice->spec = spec;
 757        mutex_init(&spec->mute_mutex);
 758
 759        /* initialize codec */
 760        p = stac_inits_prodigy;
 761        for (; *p != (unsigned short)-1; p += 2)
 762                stac9460_put(ice, p[0], p[1]);
 763        ice->gpio.set_pro_rate = stac9460_set_rate_val;
 764
 765        /* MI/ODI/O add on card with AK4114 */
 766        if (prodigy192_miodio_exists(ice)) {
 767                err = prodigy192_ak4114_init(ice);
 768                /* from this moment if err = 0 then
 769                 * spec->ak4114 should not be null
 770                 */
 771                snd_printdd("AK4114 initialized with status %d\n", err);
 772        } else
 773                snd_printdd("AK4114 not found\n");
 774        if (err < 0)
 775                return err;
 776
 777        return 0;
 778}
 779
 780
 781/*
 782 * Aureon boards don't provide the EEPROM data except for the vendor IDs.
 783 * hence the driver needs to sets up it properly.
 784 */
 785
 786static unsigned char prodigy71_eeprom[] = {
 787        [ICE_EEP2_SYSCONF]     = 0x6a,  /* 49MHz crystal, mpu401,
 788                                         * spdif-in+ 1 stereo ADC,
 789                                         * 3 stereo DACs
 790                                         */
 791        [ICE_EEP2_ACLINK]      = 0x80,  /* I2S */
 792        [ICE_EEP2_I2S]         = 0xf8,  /* vol, 96k, 24bit, 192k */
 793        [ICE_EEP2_SPDIF]       = 0xc3,  /* out-en, out-int, spdif-in */
 794        [ICE_EEP2_GPIO_DIR]    = 0xff,
 795        [ICE_EEP2_GPIO_DIR1]   = ~(VT1724_PRODIGY192_CDIN >> 8) ,
 796        [ICE_EEP2_GPIO_DIR2]   = 0xbf,
 797        [ICE_EEP2_GPIO_MASK]   = 0x00,
 798        [ICE_EEP2_GPIO_MASK1]  = 0x00,
 799        [ICE_EEP2_GPIO_MASK2]  = 0x00,
 800        [ICE_EEP2_GPIO_STATE]  = 0x00,
 801        [ICE_EEP2_GPIO_STATE1] = 0x00,
 802        [ICE_EEP2_GPIO_STATE2] = 0x10,  /* GPIO20: 0 = CD drive dig. input
 803                                         * passthrough,
 804                                         * 1 = SPDIF-OUT from ice1724
 805                                         */
 806};
 807
 808
 809/* entry point */
 810struct snd_ice1712_card_info snd_vt1724_prodigy192_cards[] = {
 811        {
 812                .subvendor = VT1724_SUBDEVICE_PRODIGY192VE,
 813                .name = "Audiotrak Prodigy 192",
 814                .model = "prodigy192",
 815                .chip_init = prodigy192_init,
 816                .build_controls = prodigy192_add_controls,
 817                .eeprom_size = sizeof(prodigy71_eeprom),
 818                .eeprom_data = prodigy71_eeprom,
 819        },
 820        { } /* terminator */
 821};
 822