sound/oss/mad16.c

   1 /*
   2  * Copyright (C) by Hannu Savolainen 1993-1997
   3  *
   4  * mad16.c
   5  *
   6  * Initialization code for OPTi MAD16 compatible audio chips. Including
   7  *
   8  *      OPTi 82C928     MAD16           (replaced by C929)
   9  *      OAK OTI-601D    Mozart
  10  *      OAK OTI-605     Mozart          (later version with MPU401 Midi)
  11  *      OPTi 82C929     MAD16 Pro
  12  *      OPTi 82C930
  13  *      OPTi 82C924
  14  *
  15  * These audio interface chips don't produce sound themselves. They just
  16  * connect some other components (OPL-[234] and a WSS compatible codec)
  17  * to the PC bus and perform I/O, DMA and IRQ address decoding. There is
  18  * also a UART for the MPU-401 mode (not 82C928/Mozart).
  19  * The Mozart chip appears to be compatible with the 82C928, although later
  20  * issues of the card, using the OTI-605 chip, have an MPU-401 compatible Midi
  21  * port. This port is configured differently to that of the OPTi audio chips.
  22  *
  23  *      Changes
  24  *
  25  *      Alan Cox                Clean up, added module selections.
  26  *
  27  *      A. Wik                  Added support for Opti924 PnP.
  28  *                              Improved debugging support.     16-May-1998
  29  *                              Fixed bug.                      16-Jun-1998
  30  *
  31  *      Torsten Duwe            Made Opti924 PnP support non-destructive
  32  *                                                              23-Dec-1998
  33  *
  34  *      Paul Grayson            Added support for Midi on later Mozart cards.
  35  *                                                              25-Nov-1999
  36  *      Christoph Hellwig       Adapted to module_init/module_exit.
  37  *      Arnaldo C. de Melo      got rid of attach_uart401       21-Sep-2000
  38  *
  39  *      Pavel Rabel             Clean up                           Nov-2000
  40  */
  41
  42 #include <linux/config.h>
  43 #include <linux/init.h>
  44 #include <linux/module.h>
  45 #include <linux/gameport.h>
  46 #include <linux/spinlock.h>
  47 #include "sound_config.h"
  48
  49 #include "ad1848.h"
  50 #include "sb.h"
  51 #include "mpu401.h"
  52
  53 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
  54 #define SUPPORT_JOYSTICK 1
  55 #endif
  56
  57 static int      mad16_conf;
  58 static int      mad16_cdsel;
  59 static DEFINE_SPINLOCK(lock);
  60
  61 #define C928    1
  62 #define MOZART  2
  63 #define C929    3
  64 #define C930    4
  65 #define C924    5
  66
  67 /*
  68  *    Registers
  69  *
  70  *      The MAD16 occupies I/O ports 0xf8d to 0xf93 (fixed locations).
  71  *      All ports are inactive by default. They can be activated by
  72  *      writing 0xE2 or 0xE3 to the password register. The password is valid
  73  *      only until the next I/O read or write.
  74  *
  75  *      82C930 uses 0xE4 as the password and indirect addressing to access
  76  *      the config registers.
  77  */
  78
  79 #define MC0_PORT        0xf8c   /* Dummy port */
  80 #define MC1_PORT        0xf8d   /* SB address, CD-ROM interface type, joystick */
  81 #define MC2_PORT        0xf8e   /* CD-ROM address, IRQ, DMA, plus OPL4 bit */
  82 #define MC3_PORT        0xf8f
  83 #define PASSWD_REG      0xf8f
  84 #define MC4_PORT        0xf90
  85 #define MC5_PORT        0xf91
  86 #define MC6_PORT        0xf92
  87 #define MC7_PORT        0xf93
  88 #define MC8_PORT        0xf94
  89 #define MC9_PORT        0xf95
  90 #define MC10_PORT       0xf96
  91 #define MC11_PORT       0xf97
  92 #define MC12_PORT       0xf98
  93
  94 static int      board_type = C928;
  95
  96 static int     *mad16_osp;
  97 static int      c931_detected;  /* minor differences from C930 */
  98 static char     c924pnp;        /* "     "           "    C924 */
  99 static int      debug;          /* debugging output */
 100
 101 #ifdef DDB
 102 #undef DDB
 103 #endif
 104 #define DDB(x) do {if (debug) x;} while (0)
 105
 106 static unsigned char mad_read(int port)
 107 {
 108         unsigned long flags;
 109         unsigned char tmp;
 110
 111         spin_lock_irqsave(&lock,flags);
 112
 113         switch (board_type)     /* Output password */
 114         {
 115                 case C928:
 116                 case MOZART:
 117                         outb((0xE2), PASSWD_REG);
 118                         break;
 119
 120                 case C929:
 121                         outb((0xE3), PASSWD_REG);
 122                         break;
 123
 124                 case C930:
 125                         /* outb(( 0xE4),  PASSWD_REG); */
 126                         break;
 127
 128                 case C924:
 129                         /* the c924 has its ports relocated by -128 if
 130                            PnP is enabled  -aw */
 131                         if (!c924pnp)
 132                                 outb((0xE5), PASSWD_REG); else
 133                                 outb((0xE5), PASSWD_REG - 0x80);
 134                         break;
 135         }
 136
 137         if (board_type == C930)
 138         {
 139                 outb((port - MC0_PORT), 0xe0e); /* Write to index reg */
 140                 tmp = inb(0xe0f);       /* Read from data reg */
 141         }
 142         else
 143                 if (!c924pnp)
 144                         tmp = inb(port); else
 145                         tmp = inb(port-0x80);
 146         spin_unlock_irqrestore(&lock,flags);
 147
 148         return tmp;
 149 }
 150
 151 static void mad_write(int port, int value)
 152 {
 153         unsigned long   flags;
 154
 155         spin_lock_irqsave(&lock,flags);
 156
 157         switch (board_type)     /* Output password */
 158         {
 159                 case C928:
 160                 case MOZART:
 161                         outb((0xE2), PASSWD_REG);
 162                         break;
 163
 164                 case C929:
 165                         outb((0xE3), PASSWD_REG);
 166                         break;
 167
 168                 case C930:
 169                         /* outb(( 0xE4),  PASSWD_REG); */
 170                         break;
 171
 172                 case C924:
 173                         if (!c924pnp)
 174                                 outb((0xE5), PASSWD_REG); else
 175                                 outb((0xE5), PASSWD_REG - 0x80);
 176                         break;
 177         }
 178
 179         if (board_type == C930)
 180         {
 181                 outb((port - MC0_PORT), 0xe0e); /* Write to index reg */
 182                 outb(((unsigned char) (value & 0xff)), 0xe0f);
 183         }
 184         else
 185                 if (!c924pnp)
 186                         outb(((unsigned char) (value & 0xff)), port); else
 187                         outb(((unsigned char) (value & 0xff)), port-0x80);
 188         spin_unlock_irqrestore(&lock,flags);
 189 }
 190
 191 static int __init detect_c930(void)
 192 {
 193         unsigned char   tmp = mad_read(MC1_PORT);
 194
 195         if ((tmp & 0x06) != 0x06)
 196         {
 197                 DDB(printk("Wrong C930 signature (%x)\n", tmp));
 198                 /* return 0; */
 199         }
 200         mad_write(MC1_PORT, 0);
 201
 202         if (mad_read(MC1_PORT) != 0x06)
 203         {
 204                 DDB(printk("Wrong C930 signature2 (%x)\n", tmp));
 205                 /* return 0; */
 206         }
 207         mad_write(MC1_PORT, tmp);       /* Restore bits */
 208
 209         mad_write(MC7_PORT, 0);
 210         if ((tmp = mad_read(MC7_PORT)) != 0)
 211         {
 212                 DDB(printk("MC7 not writable (%x)\n", tmp));
 213                 return 0;
 214         }
 215         mad_write(MC7_PORT, 0xcb);
 216         if ((tmp = mad_read(MC7_PORT)) != 0xcb)
 217         {
 218                 DDB(printk("MC7 not writable2 (%x)\n", tmp));
 219                 return 0;
 220         }
 221
 222         tmp = mad_read(MC0_PORT+18);
 223         if (tmp == 0xff || tmp == 0x00)
 224                 return 1;
 225         /* We probably have a C931 */
 226         DDB(printk("Detected C931 config=0x%02x\n", tmp));
 227         c931_detected = 1;
 228
 229         /*
 230          * We cannot configure the chip if it is in PnP mode.
 231          * If we have a CSN assigned (bit 8 in MC13) we first try
 232          * a software reset, then a software power off, finally
 233          * Clearing PnP mode. The last option is not
 234          * Bit 8 in MC13
 235          */
 236         if ((mad_read(MC0_PORT+13) & 0x80) == 0)
 237                 return 1;
 238
 239         /* Software reset */
 240         mad_write(MC9_PORT, 0x02);
 241         mad_write(MC9_PORT, 0x00);
 242
 243         if ((mad_read(MC0_PORT+13) & 0x80) == 0)
 244                 return 1;
 245
 246         /* Power off, and on again */
 247         mad_write(MC9_PORT, 0xc2);
 248         mad_write(MC9_PORT, 0xc0);
 249
 250         if ((mad_read(MC0_PORT+13) & 0x80) == 0)
 251                 return 1;
 252
 253 #if 0
 254         /* Force off PnP mode. This is not recommended because
 255          * the PnP bios will not recognize the chip on the next
 256          * warm boot and may assignd different resources to other
 257          * PnP/PCI cards.
 258          */
 259         mad_write(MC0_PORT+17, 0x04);
 260 #endif
 261         return 1;
 262 }
 263
 264 static int __init detect_mad16(void)
 265 {
 266         unsigned char tmp, tmp2, bit;
 267         int i, port;
 268
 269         /*
 270          * Check that reading a register doesn't return bus float (0xff)
 271          * when the card is accessed using password. This may fail in case
 272          * the card is in low power mode. Normally at least the power saving
 273          * mode bit should be 0.
 274          */
 275
 276         if ((tmp = mad_read(MC1_PORT)) == 0xff)
 277         {
 278                 DDB(printk("MC1_PORT returned 0xff\n"));
 279                 return 0;
 280         }
 281         for (i = 0xf8d; i <= 0xf98; i++)
 282                 if (!c924pnp)
 283                         DDB(printk("Port %0x (init value) = %0x\n", i, mad_read(i)));
 284                 else
 285                         DDB(printk("Port %0x (init value) = %0x\n", i-0x80, mad_read(i)));
 286
 287         if (board_type == C930)
 288                 return detect_c930();
 289
 290         /*
 291          * Now check that the gate is closed on first I/O after writing
 292          * the password. (This is how a MAD16 compatible card works).
 293          */
 294
 295         if ((tmp2 = inb(MC1_PORT)) == tmp)      /* It didn't close */
 296         {
 297                 DDB(printk("MC1_PORT didn't close after read (0x%02x)\n", tmp2));
 298                 return 0;
 299         }
 300
 301         bit  = (c924pnp) ?     0x20 : 0x80;
 302         port = (c924pnp) ? MC2_PORT : MC1_PORT;
 303
 304         tmp = mad_read(port);
 305         mad_write(port, tmp ^ bit);     /* Toggle a bit */
 306         if ((tmp2 = mad_read(port)) != (tmp ^ bit))     /* Compare the bit */
 307         {
 308                 mad_write(port, tmp);   /* Restore */
 309                 DDB(printk("Bit revert test failed (0x%02x, 0x%02x)\n", tmp, tmp2));
 310                 return 0;
 311         }
 312         mad_write(port, tmp);   /* Restore */
 313         return 1;               /* Bingo */
 314 }
 315
 316 static int __init wss_init(struct address_info *hw_config)
 317 {
 318         /*
 319          * Check if the IO port returns valid signature. The original MS Sound
 320          * system returns 0x04 while some cards (AudioTrix Pro for example)
 321          * return 0x00.
 322          */
 323
 324         if ((inb(hw_config->io_base + 3) & 0x3f) != 0x04 &&
 325             (inb(hw_config->io_base + 3) & 0x3f) != 0x00)
 326         {
 327                 DDB(printk("No MSS signature detected on port 0x%x (0x%x)\n", hw_config->io_base, inb(hw_config->io_base + 3)));
 328                 return 0;
 329         }
 330         /*
 331          * Check that DMA0 is not in use with a 8 bit board.
 332          */
 333         if (hw_config->dma == 0 && inb(hw_config->io_base + 3) & 0x80)
 334         {
 335                 printk("MSS: Can't use DMA0 with a 8 bit card/slot\n");
 336                 return 0;
 337         }
 338         if (hw_config->irq > 9 && inb(hw_config->io_base + 3) & 0x80)
 339                 printk(KERN_ERR "MSS: Can't use IRQ%d with a 8 bit card/slot\n", hw_config->irq);
 340         return 1;
 341 }
 342
 343 static void __init init_c930(struct address_info *hw_config, int base)
 344 {
 345         unsigned char cfg = 0;
 346
 347         cfg |= (0x0f & mad16_conf);
 348
 349         if(c931_detected)
 350         {
 351                 /* Bit 0 has reversd meaning. Bits 1 and 2 sese
 352                    reversed on write.
 353                    Support only IDE cdrom. IDE port programmed
 354                    somewhere else. */
 355                 cfg =  (cfg & 0x09) ^ 0x07;
 356         }
 357         cfg |= base << 4;
 358         mad_write(MC1_PORT, cfg);
 359
 360         /* MC2 is CD configuration. Don't touch it. */
 361
 362         mad_write(MC3_PORT, 0); /* Disable SB mode IRQ and DMA */
 363
 364         /* bit 2 of MC4 reverses it's meaning between the C930
 365            and the C931. */
 366         cfg = c931_detected ? 0x04 : 0x00;
 367
 368         if(mad16_cdsel & 0x20)
 369                 mad_write(MC4_PORT, 0x62|cfg);  /* opl4 */
 370         else
 371                 mad_write(MC4_PORT, 0x52|cfg);  /* opl3 */
 372
 373         mad_write(MC5_PORT, 0x3C);      /* Init it into mode2 */
 374         mad_write(MC6_PORT, 0x02);      /* Enable WSS, Disable MPU and SB */
 375         mad_write(MC7_PORT, 0xCB);
 376         mad_write(MC10_PORT, 0x11);
 377 }
 378
 379 static int __init chip_detect(void)
 380 {
 381         int i;
 382
 383         /*
 384          *    Then try to detect with the old password
 385          */
 386         board_type = C924;
 387
 388         DDB(printk("Detect using password = 0xE5\n"));
 389
 390         if (detect_mad16()) {
 391                 return 1;
 392         }
 393
 394         board_type = C928;
 395
 396         DDB(printk("Detect using password = 0xE2\n"));
 397
 398         if (detect_mad16())
 399         {
 400                 unsigned char model;
 401
 402                 if (((model = mad_read(MC3_PORT)) & 0x03) == 0x03) {
 403                         DDB(printk("mad16.c: Mozart detected\n"));
 404                         board_type = MOZART;
 405                 } else {
 406                         DDB(printk("mad16.c: 82C928 detected???\n"));
 407                         board_type = C928;
 408                 }
 409                 return 1;
 410         }
 411
 412         board_type = C929;
 413
 414         DDB(printk("Detect using password = 0xE3\n"));
 415
 416         if (detect_mad16())
 417         {
 418                 DDB(printk("mad16.c: 82C929 detected\n"));
 419                 return 1;
 420         }
 421
 422         if (inb(PASSWD_REG) != 0xff)
 423                 return 0;
 424
 425         /*
 426          * First relocate MC# registers to 0xe0e/0xe0f, disable password
 427          */
 428
 429         outb((0xE4), PASSWD_REG);
 430         outb((0x80), PASSWD_REG);
 431
 432         board_type = C930;
 433
 434         DDB(printk("Detect using password = 0xE4\n"));
 435
 436         for (i = 0xf8d; i <= 0xf93; i++)
 437                 DDB(printk("port %03x = %02x\n", i, mad_read(i)));
 438
 439         if(detect_mad16()) {
 440                 DDB(printk("mad16.c: 82C930 detected\n"));
 441                 return 1;
 442         }
 443
 444         /* The C931 has the password reg at F8D */
 445         outb((0xE4), 0xF8D);
 446         outb((0x80), 0xF8D);
 447         DDB(printk("Detect using password = 0xE4 for C931\n"));
 448
 449         if (detect_mad16()) {
 450                 return 1;
 451         }
 452
 453         board_type = C924;
 454         c924pnp++;
 455         DDB(printk("Detect using password = 0xE5 (again), port offset -0x80\n"));
 456         if (detect_mad16()) {
 457                 DDB(printk("mad16.c: 82C924 PnP detected\n"));
 458                 return 1;
 459         }
 460
 461         c924pnp=0;
 462
 463         return 0;
 464 }
 465
 466 static int __init probe_mad16(struct address_info *hw_config)
 467 {
 468         int i;
 469         unsigned char tmp;
 470         unsigned char cs4231_mode = 0;
 471
 472         int ad_flags = 0;
 473
 474         signed char bits;
 475
 476         static char     dma_bits[4] = {
 477                 1, 2, 0, 3
 478         };
 479
 480         int config_port = hw_config->io_base + 0, version_port = hw_config->io_base + 3;
 481         int dma = hw_config->dma, dma2 = hw_config->dma2;
 482         unsigned char dma2_bit = 0;
 483         int base;
 484         struct resource *ports;
 485
 486         mad16_osp = hw_config->osp;
 487
 488         switch (hw_config->io_base) {
 489         case 0x530:
 490                 base = 0;
 491                 break;
 492         case 0xe80:
 493                 base = 1;
 494                 break;
 495         case 0xf40:
 496                 base = 2;
 497                 break;
 498         case 0x604:
 499                 base = 3;
 500                 break;
 501         default:
 502                 printk(KERN_ERR "MAD16/Mozart: Bad WSS base address 0x%x\n", hw_config->io_base);
 503                 return 0;
 504         }
 505
 506         if (dma != 0 && dma != 1 && dma != 3) {
 507                 printk(KERN_ERR "MSS: Bad DMA %d\n", dma);
 508                 return 0;
 509         }
 510
 511         /*
 512          *    Check that all ports return 0xff (bus float) when no password
 513          *      is written to the password register.
 514          */
 515
 516         DDB(printk("--- Detecting MAD16 / Mozart ---\n"));
 517         if (!chip_detect())
 518                 return 0;
 519
 520         switch (hw_config->irq) {
 521         case 7:
 522                 bits = 8;
 523                 break;
 524         case 9:
 525                 bits = 0x10;
 526                 break;
 527         case 10:
 528                 bits = 0x18;
 529                 break;
 530         case 12:
 531                 bits = 0x20;
 532                 break;
 533         case 5: /* Also IRQ5 is possible on C930 */
 534                 if (board_type == C930 || c924pnp) {
 535                         bits = 0x28;
 536                         break;
 537                 }
 538         default:
 539                 printk(KERN_ERR "MAD16/Mozart: Bad IRQ %d\n", hw_config->irq);
 540                 return 0;
 541         }
 542
 543         ports = request_region(hw_config->io_base + 4, 4, "ad1848");
 544         if (!ports) {
 545                 printk(KERN_ERR "MSS: I/O port conflict\n");
 546                 return 0;
 547         }
 548         if (!request_region(hw_config->io_base, 4, "mad16 WSS config")) {
 549                 release_region(hw_config->io_base + 4, 4);
 550                 printk(KERN_ERR "MSS: I/O port conflict\n");
 551                 return 0;
 552         }
 553
 554         if (board_type == C930) {
 555                 init_c930(hw_config, base);
 556                 goto got_it;
 557         }
 558
 559         for (i = 0xf8d; i <= 0xf93; i++) {
 560                 if (!c924pnp)
 561                         DDB(printk("port %03x = %02x\n", i, mad_read(i)));
 562                 else
 563                         DDB(printk("port %03x = %02x\n", i-0x80, mad_read(i)));
 564         }
 565
 566 /*
 567  * Set the WSS address
 568  */
 569
 570         tmp = (mad_read(MC1_PORT) & 0x0f) | 0x80;       /* Enable WSS, Disable SB */
 571         tmp |= base << 4;       /* WSS port select bits */
 572
 573         /*
 574          * Set optional CD-ROM and joystick settings.
 575          */
 576
 577         tmp &= ~0x0f;
 578         tmp |= (mad16_conf & 0x0f);     /* CD-ROM and joystick bits */
 579         mad_write(MC1_PORT, tmp);
 580
 581         tmp = mad16_cdsel;
 582         mad_write(MC2_PORT, tmp);
 583         mad_write(MC3_PORT, 0xf0);      /* Disable SB */
 584
 585         if (board_type == C924) /* Specific C924 init values */
 586         {
 587                 mad_write(MC4_PORT, 0xA0);
 588                 mad_write(MC5_PORT, 0x05);
 589                 mad_write(MC6_PORT, 0x03);
 590         }
 591         if (!ad1848_detect(ports, &ad_flags, mad16_osp))
 592                 goto fail;
 593
 594         if (ad_flags & (AD_F_CS4231 | AD_F_CS4248))
 595                 cs4231_mode = 0x02;     /* CS4248/CS4231 sync delay switch */
 596
 597         if (board_type == C929)
 598         {
 599                 mad_write(MC4_PORT, 0xa2);
 600                 mad_write(MC5_PORT, 0xA5 | cs4231_mode);
 601                 mad_write(MC6_PORT, 0x03);      /* Disable MPU401 */
 602         }
 603         else
 604         {
 605                 mad_write(MC4_PORT, 0x02);
 606                 mad_write(MC5_PORT, 0x30 | cs4231_mode);
 607         }
 608
 609         for (i = 0xf8d; i <= 0xf93; i++) {
 610                 if (!c924pnp)
 611                         DDB(printk("port %03x after init = %02x\n", i, mad_read(i)));
 612                 else
 613                         DDB(printk("port %03x after init = %02x\n", i-0x80, mad_read(i)));
 614         }
 615
 616 got_it:
 617         ad_flags = 0;
 618         if (!ad1848_detect(ports, &ad_flags, mad16_osp))
 619                 goto fail;
 620
 621         if (!wss_init(hw_config))
 622                 goto fail;
 623
 624         /*
 625          * Set the IRQ and DMA addresses.
 626          */
 627
 628         outb((bits | 0x40), config_port);
 629         if ((inb(version_port) & 0x40) == 0)
 630                 printk(KERN_ERR "[IRQ Conflict?]\n");
 631
 632         /*
 633          * Handle the capture DMA channel
 634          */
 635
 636         if (ad_flags & AD_F_CS4231 && dma2 != -1 && dma2 != dma)
 637         {
 638                 if (!((dma == 0 && dma2 == 1) ||
 639                         (dma == 1 && dma2 == 0) ||
 640                         (dma == 3 && dma2 == 0)))
 641                 {               /* Unsupported combination. Try to swap channels */
 642                         int tmp = dma;
 643
 644                         dma = dma2;
 645                         dma2 = tmp;
 646                 }
 647                 if ((dma == 0 && dma2 == 1) || (dma == 1 && dma2 == 0) ||
 648                         (dma == 3 && dma2 == 0))
 649                 {
 650                         dma2_bit = 0x04;        /* Enable capture DMA */
 651                 }
 652                 else
 653                 {
 654                         printk("MAD16: Invalid capture DMA\n");
 655                         dma2 = dma;
 656                 }
 657         }
 658         else dma2 = dma;
 659
 660         outb((bits | dma_bits[dma] | dma2_bit), config_port);   /* Write IRQ+DMA setup */
 661
 662         hw_config->slots[0] = ad1848_init("mad16 WSS", ports,
 663                                           hw_config->irq,
 664                                           dma,
 665                                           dma2, 0,
 666                                           hw_config->osp,
 667                                           THIS_MODULE);
 668         return 1;
 669
 670 fail:
 671         release_region(hw_config->io_base + 4, 4);
 672         release_region(hw_config->io_base, 4);
 673         return 0;
 674 }
 675
 676 static int __init probe_mad16_mpu(struct address_info *hw_config)
 677 {
 678         unsigned char tmp;
 679
 680         if (board_type < C929)  /* Early chip. No MPU support. Just SB MIDI */
 681         {
 682
 683 #ifdef CONFIG_MAD16_OLDCARD
 684
 685                 tmp = mad_read(MC3_PORT);
 686
 687                 /*
 688                  * MAD16 SB base is defined by the WSS base. It cannot be changed
 689                  * alone.
 690                  * Ignore configured I/O base. Use the active setting.
 691                  */
 692
 693                 if (mad_read(MC1_PORT) & 0x20)
 694                         hw_config->io_base = 0x240;
 695                 else
 696                         hw_config->io_base = 0x220;
 697
 698                 switch (hw_config->irq)
 699                 {
 700                         case 5:
 701                                 tmp = (tmp & 0x3f) | 0x80;
 702                                 break;
 703                         case 7:
 704                                 tmp = (tmp & 0x3f);
 705                                 break;
 706                         case 11:
 707                                 tmp = (tmp & 0x3f) | 0x40;
 708                                 break;
 709                         default:
 710                                 printk(KERN_ERR "mad16/Mozart: Invalid MIDI IRQ\n");
 711                                 return 0;
 712                 }
 713
 714                 mad_write(MC3_PORT, tmp | 0x04);
 715                 hw_config->driver_use_1 = SB_MIDI_ONLY;
 716                 if (!request_region(hw_config->io_base, 16, "soundblaster"))
 717                         return 0;
 718                 if (!sb_dsp_detect(hw_config, 0, 0, NULL)) {
 719                         release_region(hw_config->io_base, 16);
 720                         return 0;
 721                 }
 722
 723                 if (mad_read(MC1_PORT) & 0x20)
 724                         hw_config->io_base = 0x240;
 725                 else
 726                         hw_config->io_base = 0x220;
 727
 728                 hw_config->name = "Mad16/Mozart";
 729                 sb_dsp_init(hw_config, THIS_MODULE);
 730                 return 1;
 731 #else
 732                 /* assuming all later Mozart cards are identified as
 733                  * either 82C928 or Mozart. If so, following code attempts
 734                  * to set MPU register. TODO - add probing
 735                  */
 736
 737                 tmp = mad_read(MC8_PORT);
 738
 739                 switch (hw_config->irq)
 740                 {
 741                         case 5:
 742                                 tmp |= 0x08;
 743                                 break;
 744                         case 7:
 745                                 tmp |= 0x10;
 746                                 break;
 747                         case 9:
 748                                 tmp |= 0x18;
 749                                 break;
 750                         case 10:
 751                                 tmp |= 0x20;
 752                                 break;
 753                         case 11:
 754                                 tmp |= 0x28;
 755                                 break;
 756                         default:
 757                                 printk(KERN_ERR "mad16/MOZART: invalid mpu_irq\n");
 758                                 return 0;
 759                 }
 760
 761                 switch (hw_config->io_base)
 762                 {
 763                         case 0x300:
 764                                 tmp |= 0x01;
 765                                 break;
 766                         case 0x310:
 767                                 tmp |= 0x03;
 768                                 break;
 769                         case 0x320:
 770                                 tmp |= 0x05;
 771                                 break;
 772                         case 0x330:
 773                                 tmp |= 0x07;
 774                                 break;
 775                         default:
 776                                 printk(KERN_ERR "mad16/MOZART: invalid mpu_io\n");
 777                                 return 0;
 778                 }
 779
 780                 mad_write(MC8_PORT, tmp);       /* write MPU port parameters */
 781                 goto probe_401;
 782 #endif
 783         }
 784         tmp = mad_read(MC6_PORT) & 0x83;
 785         tmp |= 0x80;            /* MPU-401 enable */
 786
 787         /* Set the MPU base bits */
 788
 789         switch (hw_config->io_base)
 790         {
 791                 case 0x300:
 792                         tmp |= 0x60;
 793                         break;
 794                 case 0x310:
 795                         tmp |= 0x40;
 796                         break;
 797                 case 0x320:
 798                         tmp |= 0x20;
 799                         break;
 800                 case 0x330:
 801                         tmp |= 0x00;
 802                         break;
 803                 default:
 804                         printk(KERN_ERR "MAD16: Invalid MIDI port 0x%x\n", hw_config->io_base);
 805                         return 0;
 806         }
 807
 808         /* Set the MPU IRQ bits */
 809
 810         switch (hw_config->irq)
 811         {
 812                 case 5:
 813                         tmp |= 0x10;
 814                         break;
 815                 case 7:
 816                         tmp |= 0x18;
 817                         break;
 818                 case 9:
 819                         tmp |= 0x00;
 820                         break;
 821                 case 10:
 822                         tmp |= 0x08;
 823                         break;
 824                 default:
 825                         printk(KERN_ERR "MAD16: Invalid MIDI IRQ %d\n", hw_config->irq);
 826                         break;
 827         }
 828
 829         mad_write(MC6_PORT, tmp);       /* Write MPU401 config */
 830
 831 #ifndef CONFIG_MAD16_OLDCARD
 832 probe_401:
 833 #endif
 834         hw_config->driver_use_1 = SB_MIDI_ONLY;
 835         hw_config->name = "Mad16/Mozart";
 836         return probe_uart401(hw_config, THIS_MODULE);
 837 }
 838
 839 static void __exit unload_mad16(struct address_info *hw_config)
 840 {
 841         ad1848_unload(hw_config->io_base + 4,
 842                         hw_config->irq,
 843                         hw_config->dma,
 844                         hw_config->dma2, 0);
 845         release_region(hw_config->io_base, 4);
 846         sound_unload_audiodev(hw_config->slots[0]);
 847 }
 848
 849 static void __exit unload_mad16_mpu(struct address_info *hw_config)
 850 {
 851 #ifdef CONFIG_MAD16_OLDCARD
 852         if (board_type < C929)  /* Early chip. No MPU support. Just SB MIDI */
 853         {
 854                 sb_dsp_unload(hw_config, 0);
 855                 return;
 856         }
 857 #endif
 858
 859         unload_uart401(hw_config);
 860 }
 861
 862 static struct address_info cfg;
 863 static struct address_info cfg_mpu;
 864
 865 static int found_mpu;
 866
 867 static int __initdata mpu_io = 0;
 868 static int __initdata mpu_irq = 0;
 869 static int __initdata io = -1;
 870 static int __initdata dma = -1;
 871 static int __initdata dma16 = -1; /* Set this for modules that need it */
 872 static int __initdata irq = -1;
 873 static int __initdata cdtype = 0;
 874 static int __initdata cdirq = 0;
 875 static int __initdata cdport = 0x340;
 876 static int __initdata cddma = -1;
 877 static int __initdata opl4 = 0;
 878 static int __initdata joystick = 0;
 879
 880 module_param(mpu_io, int, 0);
 881 module_param(mpu_irq, int, 0);
 882 module_param(io, int, 0);
 883 module_param(dma, int, 0);
 884 module_param(dma16, int, 0);
 885 module_param(irq, int, 0);
 886 module_param(cdtype, int, 0);
 887 module_param(cdirq, int, 0);
 888 module_param(cdport, int, 0);
 889 module_param(cddma, int, 0);
 890 module_param(opl4, int, 0);
 891 module_param(joystick, bool, 0);
 892 module_param(debug, bool, 0644);
 893
 894 static int __initdata dma_map[2][8] =
 895 {
 896         {0x03, -1, -1, -1, -1, 0x00, 0x01, 0x02},
 897         {0x03, -1, 0x01, 0x00, -1, -1, -1, -1}
 898 };
 899
 900 static int __initdata irq_map[16] =
 901 {
 902         0x00, -1, -1, 0x0A,
 903         -1, 0x04, -1, 0x08,
 904         -1, 0x10, 0x14, 0x18,
 905         -1, -1, -1, -1
 906 };
 907
 908 #ifdef SUPPORT_JOYSTICK
 909
 910 static struct gameport *gameport;
 911
 912 static int __devinit mad16_register_gameport(int io_port)
 913 {
 914         if (!request_region(io_port, 1, "mad16 gameport")) {
 915                 printk(KERN_ERR "mad16: gameport address 0x%#x already in use\n", io_port);
 916                 return -EBUSY;
 917         }
 918
 919         gameport = gameport_allocate_port();
 920         if (!gameport) {
 921                 printk(KERN_ERR "mad16: can not allocate memory for gameport\n");
 922                 release_region(io_port, 1);
 923                 return -ENOMEM;
 924         }
 925
 926         gameport_set_name(gameport, "MAD16 Gameport");
 927         gameport_set_phys(gameport, "isa%04x/gameport0", io_port);
 928         gameport->io = io_port;
 929
 930         gameport_register_port(gameport);
 931
 932         return 0;
 933 }
 934
 935 static inline void mad16_unregister_gameport(void)
 936 {
 937         if (gameport) {
 938                 /* the gameport was initialized so we must free it up */
 939                 gameport_unregister_port(gameport);
 940                 gameport = NULL;
 941                 release_region(0x201, 1);
 942         }
 943 }
 944 #else
 945 static inline int mad16_register_gameport(int io_port) { return -ENOSYS; }
 946 static inline void mad16_unregister_gameport(void) { }
 947 #endif
 948
 949 static int __devinit init_mad16(void)
 950 {
 951         int dmatype = 0;
 952
 953         printk(KERN_INFO "MAD16 audio driver Copyright (C) by Hannu Savolainen 1993-1996\n");
 954
 955         printk(KERN_INFO "CDROM ");
 956         switch (cdtype)
 957         {
 958                 case 0x00:
 959                         printk("Disabled");
 960                         cdirq = 0;
 961                         break;
 962                 case 0x02:
 963                         printk("Sony CDU31A");
 964                         dmatype = 1;
 965                         if(cddma == -1) cddma = 3;
 966                         break;
 967                 case 0x04:
 968                         printk("Mitsumi");
 969                         dmatype = 0;
 970                         if(cddma == -1) cddma = 5;
 971                         break;
 972                 case 0x06:
 973                         printk("Panasonic Lasermate");
 974                         dmatype = 1;
 975                         if(cddma == -1) cddma = 3;
 976                         break;
 977                 case 0x08:
 978                         printk("Secondary IDE");
 979                         dmatype = 0;
 980                         if(cddma == -1) cddma = 5;
 981                         break;
 982                 case 0x0A:
 983                         printk("Primary IDE");
 984                         dmatype = 0;
 985                         if(cddma == -1) cddma = 5;
 986                         break;
 987                 default:
 988                         printk("\n");
 989                         printk(KERN_ERR "Invalid CDROM type\n");
 990                         return -EINVAL;
 991         }
 992
 993         /*
 994          *    Build the config words
 995          */
 996
 997         mad16_conf = (joystick ^ 1) | cdtype;
 998         mad16_cdsel = 0;
 999         if (opl4)
1000                 mad16_cdsel |= 0x20;
1001
1002         if(cdtype){
1003                 if (cddma > 7 || cddma < 0 || dma_map[dmatype][cddma] == -1)
1004                 {
1005                         printk("\n");
1006                         printk(KERN_ERR "Invalid CDROM DMA\n");
1007                         return -EINVAL;
1008                 }
1009                 if (cddma)
1010                         printk(", DMA %d", cddma);
1011                 else
1012                         printk(", no DMA");
1013
1014                 if (!cdirq)
1015                         printk(", no IRQ");
1016                 else if (cdirq < 0 || cdirq > 15 || irq_map[cdirq] == -1)
1017                 {
1018                         printk(", invalid IRQ (disabling)");
1019                         cdirq = 0;
1020                 }
1021                 else printk(", IRQ %d", cdirq);
1022
1023                 mad16_cdsel |= dma_map[dmatype][cddma];
1024
1025                 if (cdtype < 0x08)
1026                 {
1027                         switch (cdport)
1028                         {
1029                                 case 0x340:
1030                                         mad16_cdsel |= 0x00;
1031                                         break;
1032                                 case 0x330:
1033                                         mad16_cdsel |= 0x40;
1034                                         break;
1035                                 case 0x360:
1036                                         mad16_cdsel |= 0x80;
1037                                         break;
1038                                 case 0x320:
1039                                         mad16_cdsel |= 0xC0;
1040                                         break;
1041                                 default:
1042                                         printk(KERN_ERR "Unknown CDROM I/O base %d\n", cdport);
1043                                         return -EINVAL;
1044                         }
1045                 }
1046                 mad16_cdsel |= irq_map[cdirq];
1047         }
1048
1049         printk(".\n");
1050
1051         cfg.io_base = io;
1052         cfg.irq = irq;
1053         cfg.dma = dma;
1054         cfg.dma2 = dma16;
1055
1056         if (cfg.io_base == -1 || cfg.dma == -1 || cfg.irq == -1) {
1057                 printk(KERN_ERR "I/O, DMA and irq are mandatory\n");
1058                 return -EINVAL;
1059         }
1060
1061         if (!request_region(MC0_PORT, 12, "mad16"))
1062                 return -EBUSY;
1063
1064         if (!probe_mad16(&cfg)) {
1065                 release_region(MC0_PORT, 12);
1066                 return -ENODEV;
1067         }
1068
1069         cfg_mpu.io_base = mpu_io;
1070         cfg_mpu.irq = mpu_irq;
1071
1072         found_mpu = probe_mad16_mpu(&cfg_mpu);
1073
1074         if (joystick)
1075                 mad16_register_gameport(0x201);
1076
1077         return 0;
1078 }
1079
1080 static void __exit cleanup_mad16(void)
1081 {
1082         if (found_mpu)
1083                 unload_mad16_mpu(&cfg_mpu);
1084         mad16_unregister_gameport();
1085         unload_mad16(&cfg);
1086         release_region(MC0_PORT, 12);
1087 }
1088
1089 module_init(init_mad16);
1090 module_exit(cleanup_mad16);
1091
1092 #ifndef MODULE
1093 static int __init setup_mad16(char *str)
1094 {
1095         /* io, irq */
1096         int ints[8];
1097
1098         str = get_options(str, ARRAY_SIZE(ints), ints);
1099
1100         io       = ints[1];
1101         irq      = ints[2];
1102         dma      = ints[3];
1103         dma16    = ints[4];
1104         mpu_io   = ints[5];
1105         mpu_irq  = ints[6];
1106         joystick = ints[7];
1107
1108         return 1;
1109 }
1110
1111 __setup("mad16=", setup_mad16);
1112 #endif
1113 MODULE_LICENSE("GPL");