sound/pci/ice1712/revo.c

   1 /*
   2  *   ALSA driver for ICEnsemble ICE1712 (Envy24)
   3  *
   4  *   Lowlevel functions for M-Audio Audiophile 192, Revolution 7.1 and 5.1
   5  *
   6  *      Copyright (c) 2003 Takashi Iwai <tiwai@suse.de>
   7  *
   8  *   This program is free software; you can redistribute it and/or modify
   9  *   it under the terms of the GNU General Public License as published by
  10  *   the Free Software Foundation; either version 2 of the License, or
  11  *   (at your option) any later version.
  12  *
  13  *   This program is distributed in the hope that it will be useful,
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *   GNU General Public License for more details.
  17  *
  18  *   You should have received a copy of the GNU General Public License
  19  *   along with this program; if not, write to the Free Software
  20  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21  *
  22  */
  23
  24 #include <linux/delay.h>
  25 #include <linux/interrupt.h>
  26 #include <linux/init.h>
  27 #include <linux/slab.h>
  28 #include <sound/core.h>
  29
  30 #include "ice1712.h"
  31 #include "envy24ht.h"
  32 #include "revo.h"
  33
  34 /* a non-standard I2C device for revo51 */
  35 struct revo51_spec {
  36         struct snd_i2c_device *dev;
  37         struct snd_pt2258 *pt2258;
  38 };
  39
  40 static void revo_i2s_mclk_changed(struct snd_ice1712 *ice)
  41 {
  42         /* assert PRST# to converters; MT05 bit 7 */
  43         outb(inb(ICEMT1724(ice, AC97_CMD)) | 0x80, ICEMT1724(ice, AC97_CMD));
  44         mdelay(5);
  45         /* deassert PRST# */
  46         outb(inb(ICEMT1724(ice, AC97_CMD)) & ~0x80, ICEMT1724(ice, AC97_CMD));
  47 }
  48
  49 /*
  50  * change the rate of Envy24HT, AK4355 and AK4381
  51  */
  52 static void revo_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
  53 {
  54         unsigned char old, tmp, dfs;
  55         int reg, shift;
  56
  57         if (rate == 0)  /* no hint - S/PDIF input is master, simply return */
  58                 return;
  59
  60         /* adjust DFS on codecs */
  61         if (rate > 96000)
  62                 dfs = 2;
  63         else if (rate > 48000)
  64                 dfs = 1;
  65         else
  66                 dfs = 0;
  67
  68         if (ak->type == SND_AK4355 || ak->type == SND_AK4358) {
  69                 reg = 2;
  70                 shift = 4;
  71         } else {
  72                 reg = 1;
  73                 shift = 3;
  74         }
  75         tmp = snd_akm4xxx_get(ak, 0, reg);
  76         old = (tmp >> shift) & 0x03;
  77         if (old == dfs)
  78                 return;
  79
  80         /* reset DFS */
  81         snd_akm4xxx_reset(ak, 1);
  82         tmp = snd_akm4xxx_get(ak, 0, reg);
  83         tmp &= ~(0x03 << shift);
  84         tmp |= dfs << shift;
  85         /* snd_akm4xxx_write(ak, 0, reg, tmp); */
  86         snd_akm4xxx_set(ak, 0, reg, tmp); /* value is written in reset(0) */
  87         snd_akm4xxx_reset(ak, 0);
  88 }
  89
  90 /*
  91  * I2C access to the PT2258 volume controller on GPIO 6/7 (Revolution 5.1)
  92  */
  93
  94 static void revo_i2c_start(struct snd_i2c_bus *bus)
  95 {
  96         struct snd_ice1712 *ice = bus->private_data;
  97         snd_ice1712_save_gpio_status(ice);
  98 }
  99
 100 static void revo_i2c_stop(struct snd_i2c_bus *bus)
 101 {
 102         struct snd_ice1712 *ice = bus->private_data;
 103         snd_ice1712_restore_gpio_status(ice);
 104 }
 105
 106 static void revo_i2c_direction(struct snd_i2c_bus *bus, int clock, int data)
 107 {
 108         struct snd_ice1712 *ice = bus->private_data;
 109         unsigned int mask, val;
 110
 111         val = 0;
 112         if (clock)
 113                 val |= VT1724_REVO_I2C_CLOCK;   /* write SCL */
 114         if (data)
 115                 val |= VT1724_REVO_I2C_DATA;    /* write SDA */
 116         mask = VT1724_REVO_I2C_CLOCK | VT1724_REVO_I2C_DATA;
 117         ice->gpio.direction &= ~mask;
 118         ice->gpio.direction |= val;
 119         snd_ice1712_gpio_set_dir(ice, ice->gpio.direction);
 120         snd_ice1712_gpio_set_mask(ice, ~mask);
 121 }
 122
 123 static void revo_i2c_setlines(struct snd_i2c_bus *bus, int clk, int data)
 124 {
 125         struct snd_ice1712 *ice = bus->private_data;
 126         unsigned int val = 0;
 127
 128         if (clk)
 129                 val |= VT1724_REVO_I2C_CLOCK;
 130         if (data)
 131                 val |= VT1724_REVO_I2C_DATA;
 132         snd_ice1712_gpio_write_bits(ice,
 133                                     VT1724_REVO_I2C_DATA |
 134                                     VT1724_REVO_I2C_CLOCK, val);
 135         udelay(5);
 136 }
 137
 138 static int revo_i2c_getdata(struct snd_i2c_bus *bus, int ack)
 139 {
 140         struct snd_ice1712 *ice = bus->private_data;
 141         int bit;
 142
 143         if (ack)
 144                 udelay(5);
 145         bit = snd_ice1712_gpio_read_bits(ice, VT1724_REVO_I2C_DATA) ? 1 : 0;
 146         return bit;
 147 }
 148
 149 static struct snd_i2c_bit_ops revo51_bit_ops = {
 150         .start = revo_i2c_start,
 151         .stop = revo_i2c_stop,
 152         .direction = revo_i2c_direction,
 153         .setlines = revo_i2c_setlines,
 154         .getdata = revo_i2c_getdata,
 155 };
 156
 157 static int revo51_i2c_init(struct snd_ice1712 *ice,
 158                            struct snd_pt2258 *pt)
 159 {
 160         struct revo51_spec *spec;
 161         int err;
 162
 163         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
 164         if (!spec)
 165                 return -ENOMEM;
 166         ice->spec = spec;
 167
 168         /* create the I2C bus */
 169         err = snd_i2c_bus_create(ice->card, "ICE1724 GPIO6", NULL, &ice->i2c);
 170         if (err < 0)
 171                 return err;
 172
 173         ice->i2c->private_data = ice;
 174         ice->i2c->hw_ops.bit = &revo51_bit_ops;
 175
 176         /* create the I2C device */
 177         err = snd_i2c_device_create(ice->i2c, "PT2258", 0x40, &spec->dev);
 178         if (err < 0)
 179                 return err;
 180
 181         pt->card = ice->card;
 182         pt->i2c_bus = ice->i2c;
 183         pt->i2c_dev = spec->dev;
 184         spec->pt2258 = pt;
 185
 186         snd_pt2258_reset(pt);
 187
 188         return 0;
 189 }
 190
 191 /*
 192  * initialize the chips on M-Audio Revolution cards
 193  */
 194
 195 #define AK_DAC(xname,xch) { .name = xname, .num_channels = xch }
 196
 197 static const struct snd_akm4xxx_dac_channel revo71_front[] = {
 198         {
 199                 .name = "PCM Playback Volume",
 200                 .num_channels = 2,
 201                 /* front channels DAC supports muting */
 202                 .switch_name = "PCM Playback Switch",
 203         },
 204 };
 205
 206 static const struct snd_akm4xxx_dac_channel revo71_surround[] = {
 207         AK_DAC("PCM Center Playback Volume", 1),
 208         AK_DAC("PCM LFE Playback Volume", 1),
 209         AK_DAC("PCM Side Playback Volume", 2),
 210         AK_DAC("PCM Rear Playback Volume", 2),
 211 };
 212
 213 static const struct snd_akm4xxx_dac_channel revo51_dac[] = {
 214         AK_DAC("PCM Playback Volume", 2),
 215         AK_DAC("PCM Center Playback Volume", 1),
 216         AK_DAC("PCM LFE Playback Volume", 1),
 217         AK_DAC("PCM Rear Playback Volume", 2),
 218         AK_DAC("PCM Headphone Volume", 2),
 219 };
 220
 221 static const char *revo51_adc_input_names[] = {
 222         "Mic",
 223         "Line",
 224         "CD",
 225         NULL
 226 };
 227
 228 static const struct snd_akm4xxx_adc_channel revo51_adc[] = {
 229         {
 230                 .name = "PCM Capture Volume",
 231                 .switch_name = "PCM Capture Switch",
 232                 .num_channels = 2,
 233                 .input_names = revo51_adc_input_names
 234         },
 235 };
 236
 237 static struct snd_akm4xxx akm_revo_front __devinitdata = {
 238         .type = SND_AK4381,
 239         .num_dacs = 2,
 240         .ops = {
 241                 .set_rate_val = revo_set_rate_val
 242         },
 243         .dac_info = revo71_front,
 244 };
 245
 246 static struct snd_ak4xxx_private akm_revo_front_priv __devinitdata = {
 247         .caddr = 1,
 248         .cif = 0,
 249         .data_mask = VT1724_REVO_CDOUT,
 250         .clk_mask = VT1724_REVO_CCLK,
 251         .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
 252         .cs_addr = VT1724_REVO_CS0 | VT1724_REVO_CS2,
 253         .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
 254         .add_flags = VT1724_REVO_CCLK, /* high at init */
 255         .mask_flags = 0,
 256 };
 257
 258 static struct snd_akm4xxx akm_revo_surround __devinitdata = {
 259         .type = SND_AK4355,
 260         .idx_offset = 1,
 261         .num_dacs = 6,
 262         .ops = {
 263                 .set_rate_val = revo_set_rate_val
 264         },
 265         .dac_info = revo71_surround,
 266 };
 267
 268 static struct snd_ak4xxx_private akm_revo_surround_priv __devinitdata = {
 269         .caddr = 3,
 270         .cif = 0,
 271         .data_mask = VT1724_REVO_CDOUT,
 272         .clk_mask = VT1724_REVO_CCLK,
 273         .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
 274         .cs_addr = VT1724_REVO_CS0 | VT1724_REVO_CS1,
 275         .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
 276         .add_flags = VT1724_REVO_CCLK, /* high at init */
 277         .mask_flags = 0,
 278 };
 279
 280 static struct snd_akm4xxx akm_revo51 __devinitdata = {
 281         .type = SND_AK4358,
 282         .num_dacs = 8,
 283         .ops = {
 284                 .set_rate_val = revo_set_rate_val
 285         },
 286         .dac_info = revo51_dac,
 287 };
 288
 289 static struct snd_ak4xxx_private akm_revo51_priv __devinitdata = {
 290         .caddr = 2,
 291         .cif = 0,
 292         .data_mask = VT1724_REVO_CDOUT,
 293         .clk_mask = VT1724_REVO_CCLK,
 294         .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1,
 295         .cs_addr = VT1724_REVO_CS1,
 296         .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1,
 297         .add_flags = VT1724_REVO_CCLK, /* high at init */
 298         .mask_flags = 0,
 299 };
 300
 301 static struct snd_akm4xxx akm_revo51_adc __devinitdata = {
 302         .type = SND_AK5365,
 303         .num_adcs = 2,
 304         .adc_info = revo51_adc,
 305 };
 306
 307 static struct snd_ak4xxx_private akm_revo51_adc_priv __devinitdata = {
 308         .caddr = 2,
 309         .cif = 0,
 310         .data_mask = VT1724_REVO_CDOUT,
 311         .clk_mask = VT1724_REVO_CCLK,
 312         .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1,
 313         .cs_addr = VT1724_REVO_CS0,
 314         .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1,
 315         .add_flags = VT1724_REVO_CCLK, /* high at init */
 316         .mask_flags = 0,
 317 };
 318
 319 static struct snd_pt2258 ptc_revo51_volume;
 320
 321 /* AK4358 for AP192 DAC, AK5385A for ADC */
 322 static void ap192_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
 323 {
 324         struct snd_ice1712 *ice = ak->private_data[0];
 325         int dfs;
 326
 327         revo_set_rate_val(ak, rate);
 328
 329         /* reset CKS */
 330         snd_ice1712_gpio_write_bits(ice, 1 << 8, rate > 96000 ? 1 << 8 : 0);
 331         /* reset DFS pins of AK5385A for ADC, too */
 332         if (rate > 96000)
 333                 dfs = 2;
 334         else if (rate > 48000)
 335                 dfs = 1;
 336         else
 337                 dfs = 0;
 338         snd_ice1712_gpio_write_bits(ice, 3 << 9, dfs << 9);
 339         /* reset ADC */
 340         snd_ice1712_gpio_write_bits(ice, 1 << 11, 0);
 341         snd_ice1712_gpio_write_bits(ice, 1 << 11, 1 << 11);
 342 }
 343
 344 static const struct snd_akm4xxx_dac_channel ap192_dac[] = {
 345         AK_DAC("PCM Playback Volume", 2)
 346 };
 347
 348 static struct snd_akm4xxx akm_ap192 __devinitdata = {
 349         .type = SND_AK4358,
 350         .num_dacs = 2,
 351         .ops = {
 352                 .set_rate_val = ap192_set_rate_val
 353         },
 354         .dac_info = ap192_dac,
 355 };
 356
 357 static struct snd_ak4xxx_private akm_ap192_priv __devinitdata = {
 358         .caddr = 2,
 359         .cif = 0,
 360         .data_mask = VT1724_REVO_CDOUT,
 361         .clk_mask = VT1724_REVO_CCLK,
 362         .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1,
 363         .cs_addr = VT1724_REVO_CS1,
 364         .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1,
 365         .add_flags = VT1724_REVO_CCLK, /* high at init */
 366         .mask_flags = 0,
 367 };
 368
 369 /* AK4114 support on Audiophile 192 */
 370 /* CDTO (pin 32) -- GPIO2 pin 52
 371  * CDTI (pin 33) -- GPIO3 pin 53 (shared with AK4358)
 372  * CCLK (pin 34) -- GPIO1 pin 51 (shared with AK4358)
 373  * CSN  (pin 35) -- GPIO7 pin 59
 374  */
 375 #define AK4114_ADDR     0x02
 376
 377 static void write_data(struct snd_ice1712 *ice, unsigned int gpio,
 378                        unsigned int data, int idx)
 379 {
 380         for (; idx >= 0; idx--) {
 381                 /* drop clock */
 382                 gpio &= ~VT1724_REVO_CCLK;
 383                 snd_ice1712_gpio_write(ice, gpio);
 384                 udelay(1);
 385                 /* set data */
 386                 if (data & (1 << idx))
 387                         gpio |= VT1724_REVO_CDOUT;
 388                 else
 389                         gpio &= ~VT1724_REVO_CDOUT;
 390                 snd_ice1712_gpio_write(ice, gpio);
 391                 udelay(1);
 392                 /* raise clock */
 393                 gpio |= VT1724_REVO_CCLK;
 394                 snd_ice1712_gpio_write(ice, gpio);
 395                 udelay(1);
 396         }
 397 }
 398
 399 static unsigned char read_data(struct snd_ice1712 *ice, unsigned int gpio,
 400                                int idx)
 401 {
 402         unsigned char data = 0;
 403
 404         for (; idx >= 0; idx--) {
 405                 /* drop clock */
 406                 gpio &= ~VT1724_REVO_CCLK;
 407                 snd_ice1712_gpio_write(ice, gpio);
 408                 udelay(1);
 409                 /* read data */
 410                 if (snd_ice1712_gpio_read(ice) & VT1724_REVO_CDIN)
 411                         data |= (1 << idx);
 412                 udelay(1);
 413                 /* raise clock */
 414                 gpio |= VT1724_REVO_CCLK;
 415                 snd_ice1712_gpio_write(ice, gpio);
 416                 udelay(1);
 417         }
 418         return data;
 419 }
 420
 421 static unsigned int ap192_4wire_start(struct snd_ice1712 *ice)
 422 {
 423         unsigned int tmp;
 424
 425         snd_ice1712_save_gpio_status(ice);
 426         tmp = snd_ice1712_gpio_read(ice);
 427         tmp |= VT1724_REVO_CCLK; /* high at init */
 428         tmp |= VT1724_REVO_CS0;
 429         tmp &= ~VT1724_REVO_CS1;
 430         snd_ice1712_gpio_write(ice, tmp);
 431         udelay(1);
 432         return tmp;
 433 }
 434
 435 static void ap192_4wire_finish(struct snd_ice1712 *ice, unsigned int tmp)
 436 {
 437         tmp |= VT1724_REVO_CS1;
 438         tmp |= VT1724_REVO_CS0;
 439         snd_ice1712_gpio_write(ice, tmp);
 440         udelay(1);
 441         snd_ice1712_restore_gpio_status(ice);
 442 }
 443
 444 static void ap192_ak4114_write(void *private_data, unsigned char addr,
 445                                unsigned char data)
 446 {
 447         struct snd_ice1712 *ice = private_data;
 448         unsigned int tmp, addrdata;
 449
 450         tmp = ap192_4wire_start(ice);
 451         addrdata = (AK4114_ADDR << 6) | 0x20 | (addr & 0x1f);
 452         addrdata = (addrdata << 8) | data;
 453         write_data(ice, tmp, addrdata, 15);
 454         ap192_4wire_finish(ice, tmp);
 455 }
 456
 457 static unsigned char ap192_ak4114_read(void *private_data, unsigned char addr)
 458 {
 459         struct snd_ice1712 *ice = private_data;
 460         unsigned int tmp;
 461         unsigned char data;
 462
 463         tmp = ap192_4wire_start(ice);
 464         write_data(ice, tmp, (AK4114_ADDR << 6) | (addr & 0x1f), 7);
 465         data = read_data(ice, tmp, 7);
 466         ap192_4wire_finish(ice, tmp);
 467         return data;
 468 }
 469
 470 static int __devinit ap192_ak4114_init(struct snd_ice1712 *ice)
 471 {
 472         static const unsigned char ak4114_init_vals[] = {
 473                 AK4114_RST | AK4114_PWN | AK4114_OCKS0 | AK4114_OCKS1,
 474                 AK4114_DIF_I24I2S,
 475                 AK4114_TX1E,
 476                 AK4114_EFH_1024 | AK4114_DIT | AK4114_IPS(1),
 477                 0,
 478                 0
 479         };
 480         static const unsigned char ak4114_init_txcsb[] = {
 481                 0x41, 0x02, 0x2c, 0x00, 0x00
 482         };
 483         struct ak4114 *ak;
 484         int err;
 485
 486         err = snd_ak4114_create(ice->card,
 487                                  ap192_ak4114_read,
 488                                  ap192_ak4114_write,
 489                                  ak4114_init_vals, ak4114_init_txcsb,
 490                                  ice, &ak);
 491         /* AK4114 in Revo cannot detect external rate correctly.
 492          * No reason to stop capture stream due to incorrect checks */
 493         ak->check_flags = AK4114_CHECK_NO_RATE;
 494
 495         return 0; /* error ignored; it's no fatal error */
 496 }
 497
 498 static int __devinit revo_init(struct snd_ice1712 *ice)
 499 {
 500         struct snd_akm4xxx *ak;
 501         int err;
 502
 503         /* determine I2C, DACs and ADCs */
 504         switch (ice->eeprom.subvendor) {
 505         case VT1724_SUBDEVICE_REVOLUTION71:
 506                 ice->num_total_dacs = 8;
 507                 ice->num_total_adcs = 2;
 508                 ice->gpio.i2s_mclk_changed = revo_i2s_mclk_changed;
 509                 break;
 510         case VT1724_SUBDEVICE_REVOLUTION51:
 511                 ice->num_total_dacs = 8;
 512                 ice->num_total_adcs = 2;
 513                 break;
 514         case VT1724_SUBDEVICE_AUDIOPHILE192:
 515                 ice->num_total_dacs = 2;
 516                 ice->num_total_adcs = 2;
 517                 break;
 518         default:
 519                 snd_BUG();
 520                 return -EINVAL;
 521         }
 522
 523         /* second stage of initialization, analog parts and others */
 524         ak = ice->akm = kcalloc(2, sizeof(struct snd_akm4xxx), GFP_KERNEL);
 525         if (! ak)
 526                 return -ENOMEM;
 527         switch (ice->eeprom.subvendor) {
 528         case VT1724_SUBDEVICE_REVOLUTION71:
 529                 ice->akm_codecs = 2;
 530                 err = snd_ice1712_akm4xxx_init(ak, &akm_revo_front,
 531                                                 &akm_revo_front_priv, ice);
 532                 if (err < 0)
 533                         return err;
 534                 err = snd_ice1712_akm4xxx_init(ak+1, &akm_revo_surround,
 535                                                 &akm_revo_surround_priv, ice);
 536                 if (err < 0)
 537                         return err;
 538                 /* unmute all codecs */
 539                 snd_ice1712_gpio_write_bits(ice, VT1724_REVO_MUTE,
 540                                                 VT1724_REVO_MUTE);
 541                 break;
 542         case VT1724_SUBDEVICE_REVOLUTION51:
 543                 ice->akm_codecs = 2;
 544                 err = snd_ice1712_akm4xxx_init(ak, &akm_revo51,
 545                                                &akm_revo51_priv, ice);
 546                 if (err < 0)
 547                         return err;
 548                 err = snd_ice1712_akm4xxx_init(ak+1, &akm_revo51_adc,
 549                                                &akm_revo51_adc_priv, ice);
 550                 if (err < 0)
 551                         return err;
 552                 err = revo51_i2c_init(ice, &ptc_revo51_volume);
 553                 if (err < 0)
 554                         return err;
 555                 /* unmute all codecs */
 556                 snd_ice1712_gpio_write_bits(ice, VT1724_REVO_MUTE,
 557                                             VT1724_REVO_MUTE);
 558                 break;
 559         case VT1724_SUBDEVICE_AUDIOPHILE192:
 560                 ice->akm_codecs = 1;
 561                 err = snd_ice1712_akm4xxx_init(ak, &akm_ap192, &akm_ap192_priv,
 562                                                ice);
 563                 if (err < 0)
 564                         return err;
 565
 566                 /* unmute all codecs */
 567                 snd_ice1712_gpio_write_bits(ice, VT1724_REVO_MUTE,
 568                                             VT1724_REVO_MUTE);
 569                 break;
 570         }
 571
 572         return 0;
 573 }
 574
 575
 576 static int __devinit revo_add_controls(struct snd_ice1712 *ice)
 577 {
 578         struct revo51_spec *spec;
 579         int err;
 580
 581         switch (ice->eeprom.subvendor) {
 582         case VT1724_SUBDEVICE_REVOLUTION71:
 583                 err = snd_ice1712_akm4xxx_build_controls(ice);
 584                 if (err < 0)
 585                         return err;
 586                 break;
 587         case VT1724_SUBDEVICE_REVOLUTION51:
 588                 err = snd_ice1712_akm4xxx_build_controls(ice);
 589                 if (err < 0)
 590                         return err;
 591                 spec = ice->spec;
 592                 err = snd_pt2258_build_controls(spec->pt2258);
 593                 if (err < 0)
 594                         return err;
 595                 break;
 596         case VT1724_SUBDEVICE_AUDIOPHILE192:
 597                 err = snd_ice1712_akm4xxx_build_controls(ice);
 598                 if (err < 0)
 599                         return err;
 600                 err = ap192_ak4114_init(ice);
 601                 if (err < 0)
 602                         return err;
 603                 break;
 604         }
 605         return 0;
 606 }
 607
 608 /* entry point */
 609 struct snd_ice1712_card_info snd_vt1724_revo_cards[] __devinitdata = {
 610         {
 611                 .subvendor = VT1724_SUBDEVICE_REVOLUTION71,
 612                 .name = "M Audio Revolution-7.1",
 613                 .model = "revo71",
 614                 .chip_init = revo_init,
 615                 .build_controls = revo_add_controls,
 616         },
 617         {
 618                 .subvendor = VT1724_SUBDEVICE_REVOLUTION51,
 619                 .name = "M Audio Revolution-5.1",
 620                 .model = "revo51",
 621                 .chip_init = revo_init,
 622                 .build_controls = revo_add_controls,
 623         },
 624         {
 625                 .subvendor = VT1724_SUBDEVICE_AUDIOPHILE192,
 626                 .name = "M Audio Audiophile192",
 627                 .model = "ap192",
 628                 .chip_init = revo_init,
 629                 .build_controls = revo_add_controls,
 630         },
 631         { } /* terminator */
 632 };