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   1 /*
   2     card-opti92x-ad1848.c - driver for OPTi 82c92x based soundcards.
   3     Copyright (C) 1998-2000 by Massimo Piccioni <dafastidio@libero.it>
   4
   5     Part of this code was developed at the Italian Ministry of Air Defence,
   6     Sixth Division (oh, che pace ...), Rome.
   7
   8     Thanks to Maria Grazia Pollarini, Salvatore Vassallo.
   9
  10     This program is free software; you can redistribute it and/or modify
  11     it under the terms of the GNU General Public License as published by
  12     the Free Software Foundation; either version 2 of the License, or
  13     (at your option) any later version.
  14
  15     This program is distributed in the hope that it will be useful,
  16     but WITHOUT ANY WARRANTY; without even the implied warranty of
  17     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18     GNU General Public License for more details.
  19
  20     You should have received a copy of the GNU General Public License
  21     along with this program; if not, write to the Free Software
  22     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  23 */
  24
  25
  26 #include <linux/init.h>
  27 #include <linux/err.h>
  28 #include <linux/isa.h>
  29 #include <linux/delay.h>
  30 #include <linux/slab.h>
  31 #include <linux/pnp.h>
  32 #include <linux/moduleparam.h>
  33 #include <asm/io.h>
  34 #include <asm/dma.h>
  35 #include <sound/core.h>
  36 #include <sound/wss.h>
  37 #include <sound/mpu401.h>
  38 #include <sound/opl3.h>
  39 #ifndef OPTi93X
  40 #include <sound/opl4.h>
  41 #endif
  42 #define SNDRV_LEGACY_FIND_FREE_IRQ
  43 #define SNDRV_LEGACY_FIND_FREE_DMA
  44 #include <sound/initval.h>
  45
  46 MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>");
  47 MODULE_LICENSE("GPL");
  48 #ifdef OPTi93X
  49 MODULE_DESCRIPTION("OPTi93X");
  50 MODULE_SUPPORTED_DEVICE("{{OPTi,82C931/3}}");
  51 #else   /* OPTi93X */
  52 #ifdef CS4231
  53 MODULE_DESCRIPTION("OPTi92X - CS4231");
  54 MODULE_SUPPORTED_DEVICE("{{OPTi,82C924 (CS4231)},"
  55                 "{OPTi,82C925 (CS4231)}}");
  56 #else   /* CS4231 */
  57 MODULE_DESCRIPTION("OPTi92X - AD1848");
  58 MODULE_SUPPORTED_DEVICE("{{OPTi,82C924 (AD1848)},"
  59                 "{OPTi,82C925 (AD1848)},"
  60                 "{OAK,Mozart}}");
  61 #endif  /* CS4231 */
  62 #endif  /* OPTi93X */
  63
  64 static int index = SNDRV_DEFAULT_IDX1;  /* Index 0-MAX */
  65 static char *id = SNDRV_DEFAULT_STR1;           /* ID for this card */
  66 //static int enable = SNDRV_DEFAULT_ENABLE1;    /* Enable this card */
  67 #ifdef CONFIG_PNP
  68 static int isapnp = 1;                  /* Enable ISA PnP detection */
  69 #endif
  70 static long port = SNDRV_DEFAULT_PORT1;         /* 0x530,0xe80,0xf40,0x604 */
  71 static long mpu_port = SNDRV_DEFAULT_PORT1;     /* 0x300,0x310,0x320,0x330 */
  72 static long fm_port = SNDRV_DEFAULT_PORT1;      /* 0x388 */
  73 static int irq = SNDRV_DEFAULT_IRQ1;            /* 5,7,9,10,11 */
  74 static int mpu_irq = SNDRV_DEFAULT_IRQ1;        /* 5,7,9,10 */
  75 static int dma1 = SNDRV_DEFAULT_DMA1;           /* 0,1,3 */
  76 #if defined(CS4231) || defined(OPTi93X)
  77 static int dma2 = SNDRV_DEFAULT_DMA1;           /* 0,1,3 */
  78 #endif  /* CS4231 || OPTi93X */
  79
  80 module_param(index, int, 0444);
  81 MODULE_PARM_DESC(index, "Index value for opti9xx based soundcard.");
  82 module_param(id, charp, 0444);
  83 MODULE_PARM_DESC(id, "ID string for opti9xx based soundcard.");
  84 //module_param(enable, bool, 0444);
  85 //MODULE_PARM_DESC(enable, "Enable opti9xx soundcard.");
  86 #ifdef CONFIG_PNP
  87 module_param(isapnp, bool, 0444);
  88 MODULE_PARM_DESC(isapnp, "Enable ISA PnP detection for specified soundcard.");
  89 #endif
  90 module_param(port, long, 0444);
  91 MODULE_PARM_DESC(port, "WSS port # for opti9xx driver.");
  92 module_param(mpu_port, long, 0444);
  93 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for opti9xx driver.");
  94 module_param(fm_port, long, 0444);
  95 MODULE_PARM_DESC(fm_port, "FM port # for opti9xx driver.");
  96 module_param(irq, int, 0444);
  97 MODULE_PARM_DESC(irq, "WSS irq # for opti9xx driver.");
  98 module_param(mpu_irq, int, 0444);
  99 MODULE_PARM_DESC(mpu_irq, "MPU-401 irq # for opti9xx driver.");
 100 module_param(dma1, int, 0444);
 101 MODULE_PARM_DESC(dma1, "1st dma # for opti9xx driver.");
 102 #if defined(CS4231) || defined(OPTi93X)
 103 module_param(dma2, int, 0444);
 104 MODULE_PARM_DESC(dma2, "2nd dma # for opti9xx driver.");
 105 #endif  /* CS4231 || OPTi93X */
 106
 107 #define OPTi9XX_HW_82C928       1
 108 #define OPTi9XX_HW_82C929       2
 109 #define OPTi9XX_HW_82C924       3
 110 #define OPTi9XX_HW_82C925       4
 111 #define OPTi9XX_HW_82C930       5
 112 #define OPTi9XX_HW_82C931       6
 113 #define OPTi9XX_HW_82C933       7
 114 #define OPTi9XX_HW_LAST         OPTi9XX_HW_82C933
 115
 116 #define OPTi9XX_MC_REG(n)       n
 117
 118 #ifdef OPTi93X
 119
 120 #define OPTi93X_STATUS                  0x02
 121 #define OPTi93X_PORT(chip, r)           ((chip)->port + OPTi93X_##r)
 122
 123 #define OPTi93X_IRQ_PLAYBACK            0x04
 124 #define OPTi93X_IRQ_CAPTURE             0x08
 125
 126 #endif /* OPTi93X */
 127
 128 struct snd_opti9xx {
 129         unsigned short hardware;
 130         unsigned char password;
 131         char name[7];
 132
 133         unsigned long mc_base;
 134         struct resource *res_mc_base;
 135         unsigned long mc_base_size;
 136 #ifdef OPTi93X
 137         unsigned long mc_indir_index;
 138         unsigned long mc_indir_size;
 139         struct resource *res_mc_indir;
 140         struct snd_wss *codec;
 141 #endif  /* OPTi93X */
 142         unsigned long pwd_reg;
 143
 144         spinlock_t lock;
 145
 146         int irq;
 147
 148 #ifdef CONFIG_PNP
 149         struct pnp_dev *dev;
 150         struct pnp_dev *devmpu;
 151 #endif  /* CONFIG_PNP */
 152 };
 153
 154 static int snd_opti9xx_pnp_is_probed;
 155
 156 #ifdef CONFIG_PNP
 157
 158 static struct pnp_card_device_id snd_opti9xx_pnpids[] = {
 159 #ifndef OPTi93X
 160         /* OPTi 82C924 */
 161         { .id = "OPT0924", .devs = { { "OPT0000" }, { "OPT0002" } }, .driver_data = 0x0924 },
 162         /* OPTi 82C925 */
 163         { .id = "OPT0925", .devs = { { "OPT9250" }, { "OPT0002" } }, .driver_data = 0x0925 },
 164 #else
 165         /* OPTi 82C931/3 */
 166         { .id = "OPT0931", .devs = { { "OPT9310" }, { "OPT0002" } }, .driver_data = 0x0931 },
 167 #endif  /* OPTi93X */
 168         { .id = "" }
 169 };
 170
 171 MODULE_DEVICE_TABLE(pnp_card, snd_opti9xx_pnpids);
 172
 173 #endif  /* CONFIG_PNP */
 174
 175 #ifdef OPTi93X
 176 #define DEV_NAME "opti93x"
 177 #else
 178 #define DEV_NAME "opti92x"
 179 #endif
 180
 181 static char * snd_opti9xx_names[] = {
 182         "unknown",
 183         "82C928",       "82C929",
 184         "82C924",       "82C925",
 185         "82C930",       "82C931",       "82C933"
 186 };
 187
 188
 189 static long __devinit snd_legacy_find_free_ioport(long *port_table, long size)
 190 {
 191         while (*port_table != -1) {
 192                 if (request_region(*port_table, size, "ALSA test")) {
 193                         release_region(*port_table, size);
 194                         return *port_table;
 195                 }
 196                 port_table++;
 197         }
 198         return -1;
 199 }
 200
 201 static int __devinit snd_opti9xx_init(struct snd_opti9xx *chip,
 202                                       unsigned short hardware)
 203 {
 204         static int opti9xx_mc_size[] = {7, 7, 10, 10, 2, 2, 2};
 205
 206         chip->hardware = hardware;
 207         strcpy(chip->name, snd_opti9xx_names[hardware]);
 208
 209         chip->mc_base_size = opti9xx_mc_size[hardware];
 210
 211         spin_lock_init(&chip->lock);
 212
 213         chip->irq = -1;
 214
 215         switch (hardware) {
 216 #ifndef OPTi93X
 217         case OPTi9XX_HW_82C928:
 218         case OPTi9XX_HW_82C929:
 219                 chip->mc_base = 0xf8c;
 220                 chip->password = (hardware == OPTi9XX_HW_82C928) ? 0xe2 : 0xe3;
 221                 chip->pwd_reg = 3;
 222                 break;
 223
 224         case OPTi9XX_HW_82C924:
 225         case OPTi9XX_HW_82C925:
 226                 chip->mc_base = 0xf8c;
 227                 chip->password = 0xe5;
 228                 chip->pwd_reg = 3;
 229                 break;
 230 #else   /* OPTi93X */
 231
 232         case OPTi9XX_HW_82C930:
 233         case OPTi9XX_HW_82C931:
 234         case OPTi9XX_HW_82C933:
 235                 chip->mc_base = (hardware == OPTi9XX_HW_82C930) ? 0xf8f : 0xf8d;
 236                 if (!chip->mc_indir_index) {
 237                         chip->mc_indir_index = 0xe0e;
 238                         chip->mc_indir_size = 2;
 239                 }
 240                 chip->password = 0xe4;
 241                 chip->pwd_reg = 0;
 242                 break;
 243 #endif  /* OPTi93X */
 244
 245         default:
 246                 snd_printk(KERN_ERR "chip %d not supported\n", hardware);
 247                 return -ENODEV;
 248         }
 249         return 0;
 250 }
 251
 252 static unsigned char snd_opti9xx_read(struct snd_opti9xx *chip,
 253                                       unsigned char reg)
 254 {
 255         unsigned long flags;
 256         unsigned char retval = 0xff;
 257
 258         spin_lock_irqsave(&chip->lock, flags);
 259         outb(chip->password, chip->mc_base + chip->pwd_reg);
 260
 261         switch (chip->hardware) {
 262 #ifndef OPTi93X
 263         case OPTi9XX_HW_82C924:
 264         case OPTi9XX_HW_82C925:
 265                 if (reg > 7) {
 266                         outb(reg, chip->mc_base + 8);
 267                         outb(chip->password, chip->mc_base + chip->pwd_reg);
 268                         retval = inb(chip->mc_base + 9);
 269                         break;
 270                 }
 271
 272         case OPTi9XX_HW_82C928:
 273         case OPTi9XX_HW_82C929:
 274                 retval = inb(chip->mc_base + reg);
 275                 break;
 276 #else   /* OPTi93X */
 277
 278         case OPTi9XX_HW_82C930:
 279         case OPTi9XX_HW_82C931:
 280         case OPTi9XX_HW_82C933:
 281                 outb(reg, chip->mc_indir_index);
 282                 outb(chip->password, chip->mc_base + chip->pwd_reg);
 283                 retval = inb(chip->mc_indir_index + 1);
 284                 break;
 285 #endif  /* OPTi93X */
 286
 287         default:
 288                 snd_printk(KERN_ERR "chip %d not supported\n", chip->hardware);
 289         }
 290
 291         spin_unlock_irqrestore(&chip->lock, flags);
 292         return retval;
 293 }
 294
 295 static void snd_opti9xx_write(struct snd_opti9xx *chip, unsigned char reg,
 296                               unsigned char value)
 297 {
 298         unsigned long flags;
 299
 300         spin_lock_irqsave(&chip->lock, flags);
 301         outb(chip->password, chip->mc_base + chip->pwd_reg);
 302
 303         switch (chip->hardware) {
 304 #ifndef OPTi93X
 305         case OPTi9XX_HW_82C924:
 306         case OPTi9XX_HW_82C925:
 307                 if (reg > 7) {
 308                         outb(reg, chip->mc_base + 8);
 309                         outb(chip->password, chip->mc_base + chip->pwd_reg);
 310                         outb(value, chip->mc_base + 9);
 311                         break;
 312                 }
 313
 314         case OPTi9XX_HW_82C928:
 315         case OPTi9XX_HW_82C929:
 316                 outb(value, chip->mc_base + reg);
 317                 break;
 318 #else   /* OPTi93X */
 319
 320         case OPTi9XX_HW_82C930:
 321         case OPTi9XX_HW_82C931:
 322         case OPTi9XX_HW_82C933:
 323                 outb(reg, chip->mc_indir_index);
 324                 outb(chip->password, chip->mc_base + chip->pwd_reg);
 325                 outb(value, chip->mc_indir_index + 1);
 326                 break;
 327 #endif  /* OPTi93X */
 328
 329         default:
 330                 snd_printk(KERN_ERR "chip %d not supported\n", chip->hardware);
 331         }
 332
 333         spin_unlock_irqrestore(&chip->lock, flags);
 334 }
 335
 336
 337 #define snd_opti9xx_write_mask(chip, reg, value, mask)  \
 338         snd_opti9xx_write(chip, reg,                    \
 339                 (snd_opti9xx_read(chip, reg) & ~(mask)) | ((value) & (mask)))
 340
 341
 342 static int __devinit snd_opti9xx_configure(struct snd_opti9xx *chip,
 343                                            long wss_base,
 344                                            int irq, int dma1, int dma2,
 345                                            long mpu_port, int mpu_irq)
 346 {
 347         unsigned char wss_base_bits;
 348         unsigned char irq_bits;
 349         unsigned char dma_bits;
 350         unsigned char mpu_port_bits = 0;
 351         unsigned char mpu_irq_bits;
 352
 353         switch (chip->hardware) {
 354 #ifndef OPTi93X
 355         case OPTi9XX_HW_82C924:
 356                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(4), 0xf0, 0xfc);
 357                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(6), 0x02, 0x02);
 358
 359         case OPTi9XX_HW_82C925:
 360                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(1), 0x80, 0x80);
 361                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(2), 0x00, 0x20);
 362                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(3), 0xf0, 0xff);
 363 #ifdef CS4231
 364                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(5), 0x02, 0x02);
 365 #else
 366                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(5), 0x00, 0x02);
 367 #endif  /* CS4231 */
 368                 break;
 369
 370         case OPTi9XX_HW_82C928:
 371         case OPTi9XX_HW_82C929:
 372                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(1), 0x80, 0x80);
 373                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(2), 0x00, 0x20);
 374                 /*
 375                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(3), 0xa2, 0xae);
 376                 */
 377                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(4), 0x00, 0x0c);
 378 #ifdef CS4231
 379                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(5), 0x02, 0x02);
 380 #else
 381                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(5), 0x00, 0x02);
 382 #endif  /* CS4231 */
 383                 break;
 384
 385 #else   /* OPTi93X */
 386         case OPTi9XX_HW_82C931:
 387         case OPTi9XX_HW_82C933:
 388                 /*
 389                  * The BTC 1817DW has QS1000 wavetable which is connected
 390                  * to the serial digital input of the OPTI931.
 391                  */
 392                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(21), 0x82, 0xff);
 393                 /*
 394                  * This bit sets OPTI931 to automaticaly select FM
 395                  * or digital input signal.
 396                  */
 397                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(26), 0x01, 0x01);
 398         case OPTi9XX_HW_82C930: /* FALL THROUGH */
 399                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(6), 0x02, 0x03);
 400                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(3), 0x00, 0xff);
 401                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(4), 0x10 |
 402                         (chip->hardware == OPTi9XX_HW_82C930 ? 0x00 : 0x04),
 403                         0x34);
 404                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(5), 0x20, 0xbf);
 405                 break;
 406 #endif  /* OPTi93X */
 407
 408         default:
 409                 snd_printk(KERN_ERR "chip %d not supported\n", chip->hardware);
 410                 return -EINVAL;
 411         }
 412
 413         switch (wss_base) {
 414         case 0x530:
 415                 wss_base_bits = 0x00;
 416                 break;
 417         case 0x604:
 418                 wss_base_bits = 0x03;
 419                 break;
 420         case 0xe80:
 421                 wss_base_bits = 0x01;
 422                 break;
 423         case 0xf40:
 424                 wss_base_bits = 0x02;
 425                 break;
 426         default:
 427                 snd_printk(KERN_WARNING "WSS port 0x%lx not valid\n", wss_base);
 428                 goto __skip_base;
 429         }
 430         snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(1), wss_base_bits << 4, 0x30);
 431
 432 __skip_base:
 433         switch (irq) {
 434 //#ifdef OPTi93X
 435         case 5:
 436                 irq_bits = 0x05;
 437                 break;
 438 //#endif        /* OPTi93X */
 439         case 7:
 440                 irq_bits = 0x01;
 441                 break;
 442         case 9:
 443                 irq_bits = 0x02;
 444                 break;
 445         case 10:
 446                 irq_bits = 0x03;
 447                 break;
 448         case 11:
 449                 irq_bits = 0x04;
 450                 break;
 451         default:
 452                 snd_printk(KERN_WARNING "WSS irq # %d not valid\n", irq);
 453                 goto __skip_resources;
 454         }
 455
 456         switch (dma1) {
 457         case 0:
 458                 dma_bits = 0x01;
 459                 break;
 460         case 1:
 461                 dma_bits = 0x02;
 462                 break;
 463         case 3:
 464                 dma_bits = 0x03;
 465                 break;
 466         default:
 467                 snd_printk(KERN_WARNING "WSS dma1 # %d not valid\n", dma1);
 468                 goto __skip_resources;
 469         }
 470
 471 #if defined(CS4231) || defined(OPTi93X)
 472         if (dma1 == dma2) {
 473                 snd_printk(KERN_ERR "don't want to share dmas\n");
 474                 return -EBUSY;
 475         }
 476
 477         switch (dma2) {
 478         case 0:
 479         case 1:
 480                 break;
 481         default:
 482                 snd_printk(KERN_WARNING "WSS dma2 # %d not valid\n", dma2);
 483                 goto __skip_resources;
 484         }
 485         dma_bits |= 0x04;
 486 #endif  /* CS4231 || OPTi93X */
 487
 488 #ifndef OPTi93X
 489          outb(irq_bits << 3 | dma_bits, wss_base);
 490 #else /* OPTi93X */
 491         snd_opti9xx_write(chip, OPTi9XX_MC_REG(3), (irq_bits << 3 | dma_bits));
 492 #endif /* OPTi93X */
 493
 494 __skip_resources:
 495         if (chip->hardware > OPTi9XX_HW_82C928) {
 496                 switch (mpu_port) {
 497                 case 0:
 498                 case -1:
 499                         break;
 500                 case 0x300:
 501                         mpu_port_bits = 0x03;
 502                         break;
 503                 case 0x310:
 504                         mpu_port_bits = 0x02;
 505                         break;
 506                 case 0x320:
 507                         mpu_port_bits = 0x01;
 508                         break;
 509                 case 0x330:
 510                         mpu_port_bits = 0x00;
 511                         break;
 512                 default:
 513                         snd_printk(KERN_WARNING
 514                                    "MPU-401 port 0x%lx not valid\n", mpu_port);
 515                         goto __skip_mpu;
 516                 }
 517
 518                 switch (mpu_irq) {
 519                 case 5:
 520                         mpu_irq_bits = 0x02;
 521                         break;
 522                 case 7:
 523                         mpu_irq_bits = 0x03;
 524                         break;
 525                 case 9:
 526                         mpu_irq_bits = 0x00;
 527                         break;
 528                 case 10:
 529                         mpu_irq_bits = 0x01;
 530                         break;
 531                 default:
 532                         snd_printk(KERN_WARNING "MPU-401 irq # %d not valid\n",
 533                                 mpu_irq);
 534                         goto __skip_mpu;
 535                 }
 536
 537                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(6),
 538                         (mpu_port <= 0) ? 0x00 :
 539                                 0x80 | mpu_port_bits << 5 | mpu_irq_bits << 3,
 540                         0xf8);
 541         }
 542 __skip_mpu:
 543
 544         return 0;
 545 }
 546
 547 #ifdef OPTi93X
 548
 549 static irqreturn_t snd_opti93x_interrupt(int irq, void *dev_id)
 550 {
 551         struct snd_wss *codec = dev_id;
 552         struct snd_opti9xx *chip = codec->card->private_data;
 553         unsigned char status;
 554
 555         status = snd_opti9xx_read(chip, OPTi9XX_MC_REG(11));
 556         if ((status & OPTi93X_IRQ_PLAYBACK) && codec->playback_substream)
 557                 snd_pcm_period_elapsed(codec->playback_substream);
 558         if ((status & OPTi93X_IRQ_CAPTURE) && codec->capture_substream) {
 559                 snd_wss_overrange(codec);
 560                 snd_pcm_period_elapsed(codec->capture_substream);
 561         }
 562         outb(0x00, OPTi93X_PORT(codec, STATUS));
 563         return IRQ_HANDLED;
 564 }
 565
 566 #endif /* OPTi93X */
 567
 568 static int __devinit snd_opti9xx_read_check(struct snd_opti9xx *chip)
 569 {
 570         unsigned char value;
 571 #ifdef OPTi93X
 572         unsigned long flags;
 573 #endif
 574
 575         chip->res_mc_base = request_region(chip->mc_base, chip->mc_base_size,
 576                                            "OPTi9xx MC");
 577         if (chip->res_mc_base == NULL)
 578                 return -EBUSY;
 579 #ifndef OPTi93X
 580         value = snd_opti9xx_read(chip, OPTi9XX_MC_REG(1));
 581         if (value != 0xff && value != inb(chip->mc_base + OPTi9XX_MC_REG(1)))
 582                 if (value == snd_opti9xx_read(chip, OPTi9XX_MC_REG(1)))
 583                         return 0;
 584 #else   /* OPTi93X */
 585         chip->res_mc_indir = request_region(chip->mc_indir_index,
 586                                             chip->mc_indir_size,
 587                                             "OPTi93x MC");
 588         if (chip->res_mc_indir == NULL)
 589                 return -EBUSY;
 590
 591         spin_lock_irqsave(&chip->lock, flags);
 592         outb(chip->password, chip->mc_base + chip->pwd_reg);
 593         outb(((chip->mc_indir_index & 0x1f0) >> 4), chip->mc_base);
 594         spin_unlock_irqrestore(&chip->lock, flags);
 595
 596         value = snd_opti9xx_read(chip, OPTi9XX_MC_REG(7));
 597         snd_opti9xx_write(chip, OPTi9XX_MC_REG(7), 0xff - value);
 598         if (snd_opti9xx_read(chip, OPTi9XX_MC_REG(7)) == 0xff - value)
 599                 return 0;
 600
 601         release_and_free_resource(chip->res_mc_indir);
 602         chip->res_mc_indir = NULL;
 603 #endif  /* OPTi93X */
 604         release_and_free_resource(chip->res_mc_base);
 605         chip->res_mc_base = NULL;
 606
 607         return -ENODEV;
 608 }
 609
 610 static int __devinit snd_card_opti9xx_detect(struct snd_card *card,
 611                                              struct snd_opti9xx *chip)
 612 {
 613         int i, err;
 614
 615 #ifndef OPTi93X
 616         for (i = OPTi9XX_HW_82C928; i < OPTi9XX_HW_82C930; i++) {
 617 #else
 618         for (i = OPTi9XX_HW_82C931; i >= OPTi9XX_HW_82C930; i--) {
 619 #endif
 620                 err = snd_opti9xx_init(chip, i);
 621                 if (err < 0)
 622                         return err;
 623
 624                 err = snd_opti9xx_read_check(chip);
 625                 if (err == 0)
 626                         return 1;
 627 #ifdef OPTi93X
 628                 chip->mc_indir_index = 0;
 629 #endif
 630         }
 631         return -ENODEV;
 632 }
 633
 634 #ifdef CONFIG_PNP
 635 static int __devinit snd_card_opti9xx_pnp(struct snd_opti9xx *chip,
 636                                           struct pnp_card_link *card,
 637                                           const struct pnp_card_device_id *pid)
 638 {
 639         struct pnp_dev *pdev;
 640         int err;
 641
 642         chip->dev = pnp_request_card_device(card, pid->devs[0].id, NULL);
 643         if (chip->dev == NULL)
 644                 return -EBUSY;
 645
 646         chip->devmpu = pnp_request_card_device(card, pid->devs[1].id, NULL);
 647
 648         pdev = chip->dev;
 649
 650         err = pnp_activate_dev(pdev);
 651         if (err < 0) {
 652                 snd_printk(KERN_ERR "AUDIO pnp configure failure: %d\n", err);
 653                 return err;
 654         }
 655
 656 #ifdef OPTi93X
 657         port = pnp_port_start(pdev, 0) - 4;
 658         fm_port = pnp_port_start(pdev, 1) + 8;
 659         chip->mc_indir_index = pnp_port_start(pdev, 3) + 2;
 660         chip->mc_indir_size = pnp_port_len(pdev, 3) - 2;
 661 #else
 662         if (pid->driver_data != 0x0924)
 663                 port = pnp_port_start(pdev, 1);
 664         fm_port = pnp_port_start(pdev, 2) + 8;
 665 #endif  /* OPTi93X */
 666         irq = pnp_irq(pdev, 0);
 667         dma1 = pnp_dma(pdev, 0);
 668 #if defined(CS4231) || defined(OPTi93X)
 669         dma2 = pnp_dma(pdev, 1);
 670 #endif  /* CS4231 || OPTi93X */
 671
 672         pdev = chip->devmpu;
 673         if (pdev && mpu_port > 0) {
 674                 err = pnp_activate_dev(pdev);
 675                 if (err < 0) {
 676                         snd_printk(KERN_ERR "AUDIO pnp configure failure\n");
 677                         mpu_port = -1;
 678                         chip->devmpu = NULL;
 679                 } else {
 680                         mpu_port = pnp_port_start(pdev, 0);
 681                         mpu_irq = pnp_irq(pdev, 0);
 682                 }
 683         }
 684         return pid->driver_data;
 685 }
 686 #endif  /* CONFIG_PNP */
 687
 688 static void snd_card_opti9xx_free(struct snd_card *card)
 689 {
 690         struct snd_opti9xx *chip = card->private_data;
 691
 692         if (chip) {
 693 #ifdef OPTi93X
 694                 struct snd_wss *codec = chip->codec;
 695                 if (codec && codec->irq > 0) {
 696                         disable_irq(codec->irq);
 697                         free_irq(codec->irq, codec);
 698                 }
 699                 release_and_free_resource(chip->res_mc_indir);
 700 #endif
 701                 release_and_free_resource(chip->res_mc_base);
 702         }
 703 }
 704
 705 static int __devinit snd_opti9xx_probe(struct snd_card *card)
 706 {
 707         static long possible_ports[] = {0x530, 0xe80, 0xf40, 0x604, -1};
 708         int error;
 709         int xdma2;
 710         struct snd_opti9xx *chip = card->private_data;
 711         struct snd_wss *codec;
 712 #ifdef CS4231
 713         struct snd_timer *timer;
 714 #endif
 715         struct snd_pcm *pcm;
 716         struct snd_rawmidi *rmidi;
 717         struct snd_hwdep *synth;
 718
 719 #if defined(CS4231) || defined(OPTi93X)
 720         xdma2 = dma2;
 721 #else
 722         xdma2 = -1;
 723 #endif
 724
 725         if (port == SNDRV_AUTO_PORT) {
 726                 port = snd_legacy_find_free_ioport(possible_ports, 4);
 727                 if (port < 0) {
 728                         snd_printk(KERN_ERR "unable to find a free WSS port\n");
 729                         return -EBUSY;
 730                 }
 731         }
 732         error = snd_opti9xx_configure(chip, port, irq, dma1, xdma2,
 733                                       mpu_port, mpu_irq);
 734         if (error)
 735                 return error;
 736
 737         error = snd_wss_create(card, port + 4, -1, irq, dma1, xdma2,
 738 #ifdef OPTi93X
 739                                WSS_HW_OPTI93X, WSS_HWSHARE_IRQ,
 740 #else
 741                                WSS_HW_DETECT, 0,
 742 #endif
 743                                &codec);
 744         if (error < 0)
 745                 return error;
 746 #ifdef OPTi93X
 747         chip->codec = codec;
 748 #endif
 749         error = snd_wss_pcm(codec, 0, &pcm);
 750         if (error < 0)
 751                 return error;
 752         error = snd_wss_mixer(codec);
 753         if (error < 0)
 754                 return error;
 755 #ifdef CS4231
 756         error = snd_wss_timer(codec, 0, &timer);
 757         if (error < 0)
 758                 return error;
 759 #endif
 760 #ifdef OPTi93X
 761         error = request_irq(irq, snd_opti93x_interrupt,
 762                             IRQF_DISABLED, DEV_NAME" - WSS", codec);
 763         if (error < 0) {
 764                 snd_printk(KERN_ERR "opti9xx: can't grab IRQ %d\n", chip->irq);
 765                 return error;
 766         }
 767 #endif
 768         chip->irq = irq;
 769         strcpy(card->driver, chip->name);
 770         sprintf(card->shortname, "OPTi %s", card->driver);
 771 #if defined(CS4231) || defined(OPTi93X)
 772         sprintf(card->longname, "%s, %s at 0x%lx, irq %d, dma %d&%d",
 773                 card->shortname, pcm->name, port + 4, irq, dma1, xdma2);
 774 #else
 775         sprintf(card->longname, "%s, %s at 0x%lx, irq %d, dma %d",
 776                 card->shortname, pcm->name, port + 4, irq, dma1);
 777 #endif  /* CS4231 || OPTi93X */
 778
 779         if (mpu_port <= 0 || mpu_port == SNDRV_AUTO_PORT)
 780                 rmidi = NULL;
 781         else {
 782                 error = snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
 783                                 mpu_port, 0, mpu_irq, IRQF_DISABLED, &rmidi);
 784                 if (error)
 785                         snd_printk(KERN_WARNING "no MPU-401 device at 0x%lx?\n",
 786                                    mpu_port);
 787         }
 788
 789         if (fm_port > 0 && fm_port != SNDRV_AUTO_PORT) {
 790                 struct snd_opl3 *opl3 = NULL;
 791 #ifndef OPTi93X
 792                 if (chip->hardware == OPTi9XX_HW_82C928 ||
 793                     chip->hardware == OPTi9XX_HW_82C929 ||
 794                     chip->hardware == OPTi9XX_HW_82C924) {
 795                         struct snd_opl4 *opl4;
 796                         /* assume we have an OPL4 */
 797                         snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(2),
 798                                                0x20, 0x20);
 799                         if (snd_opl4_create(card, fm_port, fm_port - 8,
 800                                             2, &opl3, &opl4) < 0) {
 801                                 /* no luck, use OPL3 instead */
 802                                 snd_opti9xx_write_mask(chip, OPTi9XX_MC_REG(2),
 803                                                        0x00, 0x20);
 804                         }
 805                 }
 806 #endif  /* !OPTi93X */
 807                 if (!opl3 && snd_opl3_create(card, fm_port, fm_port + 2,
 808                                              OPL3_HW_AUTO, 0, &opl3) < 0) {
 809                         snd_printk(KERN_WARNING "no OPL device at 0x%lx-0x%lx\n",
 810                                    fm_port, fm_port + 4 - 1);
 811                 }
 812                 if (opl3) {
 813                         error = snd_opl3_hwdep_new(opl3, 0, 1, &synth);
 814                         if (error < 0)
 815                                 return error;
 816                 }
 817         }
 818
 819         return snd_card_register(card);
 820 }
 821
 822 static int snd_opti9xx_card_new(struct snd_card **cardp)
 823 {
 824         struct snd_card *card;
 825         int err;
 826
 827         err = snd_card_create(index, id, THIS_MODULE,
 828                               sizeof(struct snd_opti9xx), &card);
 829         if (err < 0)
 830                 return err;
 831         card->private_free = snd_card_opti9xx_free;
 832         *cardp = card;
 833         return 0;
 834 }
 835
 836 static int __devinit snd_opti9xx_isa_match(struct device *devptr,
 837                                            unsigned int dev)
 838 {
 839 #ifdef CONFIG_PNP
 840         if (snd_opti9xx_pnp_is_probed)
 841                 return 0;
 842         if (isapnp)
 843                 return 0;
 844 #endif
 845         return 1;
 846 }
 847
 848 static int __devinit snd_opti9xx_isa_probe(struct device *devptr,
 849                                            unsigned int dev)
 850 {
 851         struct snd_card *card;
 852         int error;
 853         static long possible_mpu_ports[] = {0x300, 0x310, 0x320, 0x330, -1};
 854 #ifdef OPTi93X
 855         static int possible_irqs[] = {5, 9, 10, 11, 7, -1};
 856 #else
 857         static int possible_irqs[] = {9, 10, 11, 7, -1};
 858 #endif  /* OPTi93X */
 859         static int possible_mpu_irqs[] = {5, 9, 10, 7, -1};
 860         static int possible_dma1s[] = {3, 1, 0, -1};
 861 #if defined(CS4231) || defined(OPTi93X)
 862         static int possible_dma2s[][2] = {{1,-1}, {0,-1}, {-1,-1}, {0,-1}};
 863 #endif  /* CS4231 || OPTi93X */
 864
 865         if (mpu_port == SNDRV_AUTO_PORT) {
 866                 if ((mpu_port = snd_legacy_find_free_ioport(possible_mpu_ports, 2)) < 0) {
 867                         snd_printk(KERN_ERR "unable to find a free MPU401 port\n");
 868                         return -EBUSY;
 869                 }
 870         }
 871         if (irq == SNDRV_AUTO_IRQ) {
 872                 if ((irq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
 873                         snd_printk(KERN_ERR "unable to find a free IRQ\n");
 874                         return -EBUSY;
 875                 }
 876         }
 877         if (mpu_irq == SNDRV_AUTO_IRQ) {
 878                 if ((mpu_irq = snd_legacy_find_free_irq(possible_mpu_irqs)) < 0) {
 879                         snd_printk(KERN_ERR "unable to find a free MPU401 IRQ\n");
 880                         return -EBUSY;
 881                 }
 882         }
 883         if (dma1 == SNDRV_AUTO_DMA) {
 884                 if ((dma1 = snd_legacy_find_free_dma(possible_dma1s)) < 0) {
 885                         snd_printk(KERN_ERR "unable to find a free DMA1\n");
 886                         return -EBUSY;
 887                 }
 888         }
 889 #if defined(CS4231) || defined(OPTi93X)
 890         if (dma2 == SNDRV_AUTO_DMA) {
 891                 if ((dma2 = snd_legacy_find_free_dma(possible_dma2s[dma1 % 4])) < 0) {
 892                         snd_printk(KERN_ERR "unable to find a free DMA2\n");
 893                         return -EBUSY;
 894                 }
 895         }
 896 #endif
 897
 898         error = snd_opti9xx_card_new(&card);
 899         if (error < 0)
 900                 return error;
 901
 902         if ((error = snd_card_opti9xx_detect(card, card->private_data)) < 0) {
 903                 snd_card_free(card);
 904                 return error;
 905         }
 906         snd_card_set_dev(card, devptr);
 907         if ((error = snd_opti9xx_probe(card)) < 0) {
 908                 snd_card_free(card);
 909                 return error;
 910         }
 911         dev_set_drvdata(devptr, card);
 912         return 0;
 913 }
 914
 915 static int __devexit snd_opti9xx_isa_remove(struct device *devptr,
 916                                             unsigned int dev)
 917 {
 918         snd_card_free(dev_get_drvdata(devptr));
 919         dev_set_drvdata(devptr, NULL);
 920         return 0;
 921 }
 922
 923 static struct isa_driver snd_opti9xx_driver = {
 924         .match          = snd_opti9xx_isa_match,
 925         .probe          = snd_opti9xx_isa_probe,
 926         .remove         = __devexit_p(snd_opti9xx_isa_remove),
 927         /* FIXME: suspend/resume */
 928         .driver         = {
 929                 .name   = DEV_NAME
 930         },
 931 };
 932
 933 #ifdef CONFIG_PNP
 934 static int __devinit snd_opti9xx_pnp_probe(struct pnp_card_link *pcard,
 935                                            const struct pnp_card_device_id *pid)
 936 {
 937         struct snd_card *card;
 938         int error, hw;
 939         struct snd_opti9xx *chip;
 940
 941         if (snd_opti9xx_pnp_is_probed)
 942                 return -EBUSY;
 943         if (! isapnp)
 944                 return -ENODEV;
 945         error = snd_opti9xx_card_new(&card);
 946         if (error < 0)
 947                 return error;
 948         chip = card->private_data;
 949
 950         hw = snd_card_opti9xx_pnp(chip, pcard, pid);
 951         switch (hw) {
 952         case 0x0924:
 953                 hw = OPTi9XX_HW_82C924;
 954                 break;
 955         case 0x0925:
 956                 hw = OPTi9XX_HW_82C925;
 957                 break;
 958         case 0x0931:
 959                 hw = OPTi9XX_HW_82C931;
 960                 break;
 961         default:
 962                 snd_card_free(card);
 963                 return -ENODEV;
 964         }
 965
 966         if ((error = snd_opti9xx_init(chip, hw))) {
 967                 snd_card_free(card);
 968                 return error;
 969         }
 970         if (hw <= OPTi9XX_HW_82C930)
 971                 chip->mc_base -= 0x80;
 972
 973         error = snd_opti9xx_read_check(chip);
 974         if (error) {
 975                 snd_printk(KERN_ERR "OPTI chip not found\n");
 976                 snd_card_free(card);
 977                 return error;
 978         }
 979         snd_card_set_dev(card, &pcard->card->dev);
 980         if ((error = snd_opti9xx_probe(card)) < 0) {
 981                 snd_card_free(card);
 982                 return error;
 983         }
 984         pnp_set_card_drvdata(pcard, card);
 985         snd_opti9xx_pnp_is_probed = 1;
 986         return 0;
 987 }
 988
 989 static void __devexit snd_opti9xx_pnp_remove(struct pnp_card_link * pcard)
 990 {
 991         snd_card_free(pnp_get_card_drvdata(pcard));
 992         pnp_set_card_drvdata(pcard, NULL);
 993         snd_opti9xx_pnp_is_probed = 0;
 994 }
 995
 996 static struct pnp_card_driver opti9xx_pnpc_driver = {
 997         .flags          = PNP_DRIVER_RES_DISABLE,
 998         .name           = "opti9xx",
 999         .id_table       = snd_opti9xx_pnpids,
1000         .probe          = snd_opti9xx_pnp_probe,
1001         .remove         = __devexit_p(snd_opti9xx_pnp_remove),
1002 };
1003 #endif
1004
1005 #ifdef OPTi93X
1006 #define CHIP_NAME       "82C93x"
1007 #else
1008 #define CHIP_NAME       "82C92x"
1009 #endif
1010
1011 static int __init alsa_card_opti9xx_init(void)
1012 {
1013 #ifdef CONFIG_PNP
1014         pnp_register_card_driver(&opti9xx_pnpc_driver);
1015         if (snd_opti9xx_pnp_is_probed)
1016                 return 0;
1017         pnp_unregister_card_driver(&opti9xx_pnpc_driver);
1018 #endif
1019         return isa_register_driver(&snd_opti9xx_driver, 1);
1020 }
1021
1022 static void __exit alsa_card_opti9xx_exit(void)
1023 {
1024         if (!snd_opti9xx_pnp_is_probed) {
1025                 isa_unregister_driver(&snd_opti9xx_driver);
1026                 return;
1027         }
1028 #ifdef CONFIG_PNP
1029         pnp_unregister_card_driver(&opti9xx_pnpc_driver);
1030 #endif
1031 }
1032
1033 module_init(alsa_card_opti9xx_init)
1034 module_exit(alsa_card_opti9xx_exit)