sound/oss/sb_common.c

   1 /*
   2  * sound/sb_common.c
   3  *
   4  * Common routines for Sound Blaster compatible cards.
   5  *
   6  *
   7  * Copyright (C) by Hannu Savolainen 1993-1997
   8  *
   9  * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
  10  * Version 2 (June 1991). See the "COPYING" file distributed with this software
  11  * for more info.
  12  *
  13  *
  14  * Daniel J. Rodriksson: Modified sbintr to handle 8 and 16 bit interrupts
  15  *                       for full duplex support ( only sb16 by now )
  16  * Rolf Fokkens:         Added (BETA?) support for ES1887 chips.
  17  * (fokkensr@vertis.nl)  Which means: You can adjust the recording levels.
  18  *
  19  * 2000/01/18 - separated sb_card and sb_common -
  20  * Jeff Garzik <jgarzik@pobox.com>
  21  *
  22  * 2000/09/18 - got rid of attach_uart401
  23  * Arnaldo Carvalho de Melo <acme@conectiva.com.br>
  24  *
  25  * 2001/01/26 - replaced CLI/STI with spinlocks
  26  * Chris Rankin <rankinc@zipworld.com.au>
  27  */
  28
  29 #include <linux/init.h>
  30 #include <linux/interrupt.h>
  31 #include <linux/module.h>
  32 #include <linux/delay.h>
  33 #include <linux/spinlock.h>
  34
  35 #include "sound_config.h"
  36 #include "sound_firmware.h"
  37
  38 #include "mpu401.h"
  39
  40 #include "sb_mixer.h"
  41 #include "sb.h"
  42 #include "sb_ess.h"
  43
  44 /*
  45  * global module flag
  46  */
  47
  48 int sb_be_quiet;
  49
  50 static sb_devc *detected_devc;  /* For communication from probe to init */
  51 static sb_devc *last_devc;      /* For MPU401 initialization */
  52
  53 static unsigned char jazz_irq_bits[] = {
  54         0, 0, 2, 3, 0, 1, 0, 4, 0, 2, 5, 0, 0, 0, 0, 6
  55 };
  56
  57 static unsigned char jazz_dma_bits[] = {
  58         0, 1, 0, 2, 0, 3, 0, 4
  59 };
  60
  61 void *smw_free;
  62
  63 /*
  64  * Jazz16 chipset specific control variables
  65  */
  66
  67 static int jazz16_base;                 /* Not detected */
  68 static unsigned char jazz16_bits;       /* I/O relocation bits */
  69 static DEFINE_SPINLOCK(jazz16_lock);
  70
  71 /*
  72  * Logitech Soundman Wave specific initialization code
  73  */
  74
  75 #ifdef SMW_MIDI0001_INCLUDED
  76 #include "smw-midi0001.h"
  77 #else
  78 static unsigned char *smw_ucode;
  79 static int      smw_ucodeLen;
  80
  81 #endif
  82
  83 static sb_devc *last_sb;                /* Last sb loaded */
  84
  85 int sb_dsp_command(sb_devc * devc, unsigned char val)
  86 {
  87         int i;
  88         unsigned long limit;
  89
  90         limit = jiffies + HZ / 10;      /* Timeout */
  91
  92         /*
  93          * Note! the i<500000 is an emergency exit. The sb_dsp_command() is sometimes
  94          * called while interrupts are disabled. This means that the timer is
  95          * disabled also. However the timeout situation is a abnormal condition.
  96          * Normally the DSP should be ready to accept commands after just couple of
  97          * loops.
  98          */
  99
 100         for (i = 0; i < 500000 && (limit-jiffies)>0; i++)
 101         {
 102                 if ((inb(DSP_STATUS) & 0x80) == 0)
 103                 {
 104                         outb((val), DSP_COMMAND);
 105                         return 1;
 106                 }
 107         }
 108         printk(KERN_WARNING "Sound Blaster:  DSP command(%x) timeout.\n", val);
 109         return 0;
 110 }
 111
 112 int sb_dsp_get_byte(sb_devc * devc)
 113 {
 114         int i;
 115
 116         for (i = 1000; i; i--)
 117         {
 118                 if (inb(DSP_DATA_AVAIL) & 0x80)
 119                         return inb(DSP_READ);
 120         }
 121         return 0xffff;
 122 }
 123
 124 static void sb_intr (sb_devc *devc)
 125 {
 126         int status;
 127         unsigned char   src = 0xff;
 128
 129         if (devc->model == MDL_SB16)
 130         {
 131                 src = sb_getmixer(devc, IRQ_STAT);      /* Interrupt source register */
 132
 133                 if (src & 4)                                            /* MPU401 interrupt */
 134                         if(devc->midi_irq_cookie)
 135                                 uart401intr(devc->irq, devc->midi_irq_cookie, NULL);
 136
 137                 if (!(src & 3))
 138                         return; /* Not a DSP interrupt */
 139         }
 140         if (devc->intr_active && (!devc->fullduplex || (src & 0x01)))
 141         {
 142                 switch (devc->irq_mode)
 143                 {
 144                         case IMODE_OUTPUT:
 145                                 DMAbuf_outputintr(devc->dev, 1);
 146                                 break;
 147
 148                         case IMODE_INPUT:
 149                                 DMAbuf_inputintr(devc->dev);
 150                                 break;
 151
 152                         case IMODE_INIT:
 153                                 break;
 154
 155                         case IMODE_MIDI:
 156                                 sb_midi_interrupt(devc);
 157                                 break;
 158
 159                         default:
 160                                 /* printk(KERN_WARN "Sound Blaster: Unexpected interrupt\n"); */
 161                                 ;
 162                 }
 163         }
 164         else if (devc->intr_active_16 && (src & 0x02))
 165         {
 166                 switch (devc->irq_mode_16)
 167                 {
 168                         case IMODE_OUTPUT:
 169                                 DMAbuf_outputintr(devc->dev, 1);
 170                                 break;
 171
 172                         case IMODE_INPUT:
 173                                 DMAbuf_inputintr(devc->dev);
 174                                 break;
 175
 176                         case IMODE_INIT:
 177                                 break;
 178
 179                         default:
 180                                 /* printk(KERN_WARN "Sound Blaster: Unexpected interrupt\n"); */
 181                                 ;
 182                 }
 183         }
 184         /*
 185          * Acknowledge interrupts
 186          */
 187
 188         if (src & 0x01)
 189                 status = inb(DSP_DATA_AVAIL);
 190
 191         if (devc->model == MDL_SB16 && src & 0x02)
 192                 status = inb(DSP_DATA_AVL16);
 193 }
 194
 195 static void pci_intr(sb_devc *devc)
 196 {
 197         int src = inb(devc->pcibase+0x1A);
 198         src&=3;
 199         if(src)
 200                 sb_intr(devc);
 201 }
 202
 203 static irqreturn_t sbintr(int irq, void *dev_id, struct pt_regs *dummy)
 204 {
 205         sb_devc *devc = dev_id;
 206
 207         devc->irq_ok = 1;
 208
 209         switch (devc->model) {
 210         case MDL_ESSPCI:
 211                 pci_intr (devc);
 212                 break;
 213
 214         case MDL_ESS:
 215                 ess_intr (devc);
 216                 break;
 217         default:
 218                 sb_intr (devc);
 219                 break;
 220         }
 221         return IRQ_HANDLED;
 222 }
 223
 224 int sb_dsp_reset(sb_devc * devc)
 225 {
 226         int loopc;
 227
 228         DEB(printk("Entered sb_dsp_reset()\n"));
 229
 230         if (devc->model == MDL_ESS) return ess_dsp_reset (devc);
 231
 232         /* This is only for non-ESS chips */
 233
 234         outb(1, DSP_RESET);
 235
 236         udelay(10);
 237         outb(0, DSP_RESET);
 238         udelay(30);
 239
 240         for (loopc = 0; loopc < 1000 && !(inb(DSP_DATA_AVAIL) & 0x80); loopc++);
 241
 242         if (inb(DSP_READ) != 0xAA)
 243         {
 244                 DDB(printk("sb: No response to RESET\n"));
 245                 return 0;       /* Sorry */
 246         }
 247
 248         DEB(printk("sb_dsp_reset() OK\n"));
 249
 250         return 1;
 251 }
 252
 253 static void dsp_get_vers(sb_devc * devc)
 254 {
 255         int i;
 256
 257         unsigned long   flags;
 258
 259         DDB(printk("Entered dsp_get_vers()\n"));
 260         spin_lock_irqsave(&devc->lock, flags);
 261         devc->major = devc->minor = 0;
 262         sb_dsp_command(devc, 0xe1);     /* Get version */
 263
 264         for (i = 100000; i; i--)
 265         {
 266                 if (inb(DSP_DATA_AVAIL) & 0x80)
 267                 {
 268                         if (devc->major == 0)
 269                                 devc->major = inb(DSP_READ);
 270                         else
 271                         {
 272                                 devc->minor = inb(DSP_READ);
 273                                 break;
 274                         }
 275                 }
 276         }
 277         spin_unlock_irqrestore(&devc->lock, flags);
 278         DDB(printk("DSP version %d.%02d\n", devc->major, devc->minor));
 279 }
 280
 281 static int sb16_set_dma_hw(sb_devc * devc)
 282 {
 283         int bits;
 284
 285         if (devc->dma8 != 0 && devc->dma8 != 1 && devc->dma8 != 3)
 286         {
 287                 printk(KERN_ERR "SB16: Invalid 8 bit DMA (%d)\n", devc->dma8);
 288                 return 0;
 289         }
 290         bits = (1 << devc->dma8);
 291
 292         if (devc->dma16 >= 5 && devc->dma16 <= 7)
 293                 bits |= (1 << devc->dma16);
 294
 295         sb_setmixer(devc, DMA_NR, bits);
 296         return 1;
 297 }
 298
 299 static void sb16_set_mpu_port(sb_devc * devc, struct address_info *hw_config)
 300 {
 301         /*
 302          * This routine initializes new MIDI port setup register of SB Vibra (CT2502).
 303          */
 304         unsigned char   bits = sb_getmixer(devc, 0x84) & ~0x06;
 305
 306         switch (hw_config->io_base)
 307         {
 308                 case 0x300:
 309                         sb_setmixer(devc, 0x84, bits | 0x04);
 310                         break;
 311
 312                 case 0x330:
 313                         sb_setmixer(devc, 0x84, bits | 0x00);
 314                         break;
 315
 316                 default:
 317                         sb_setmixer(devc, 0x84, bits | 0x02);           /* Disable MPU */
 318                         printk(KERN_ERR "SB16: Invalid MIDI I/O port %x\n", hw_config->io_base);
 319         }
 320 }
 321
 322 static int sb16_set_irq_hw(sb_devc * devc, int level)
 323 {
 324         int ival;
 325
 326         switch (level)
 327         {
 328                 case 5:
 329                         ival = 2;
 330                         break;
 331                 case 7:
 332                         ival = 4;
 333                         break;
 334                 case 9:
 335                         ival = 1;
 336                         break;
 337                 case 10:
 338                         ival = 8;
 339                         break;
 340                 default:
 341                         printk(KERN_ERR "SB16: Invalid IRQ%d\n", level);
 342                         return 0;
 343         }
 344         sb_setmixer(devc, IRQ_NR, ival);
 345         return 1;
 346 }
 347
 348 static void relocate_Jazz16(sb_devc * devc, struct address_info *hw_config)
 349 {
 350         unsigned char bits = 0;
 351         unsigned long flags;
 352
 353         if (jazz16_base != 0 && jazz16_base != hw_config->io_base)
 354                 return;
 355
 356         switch (hw_config->io_base)
 357         {
 358                 case 0x220:
 359                         bits = 1;
 360                         break;
 361                 case 0x240:
 362                         bits = 2;
 363                         break;
 364                 case 0x260:
 365                         bits = 3;
 366                         break;
 367                 default:
 368                         return;
 369         }
 370         bits = jazz16_bits = bits << 5;
 371         jazz16_base = hw_config->io_base;
 372
 373         /*
 374          *      Magic wake up sequence by writing to 0x201 (aka Joystick port)
 375          */
 376         spin_lock_irqsave(&jazz16_lock, flags);
 377         outb((0xAF), 0x201);
 378         outb((0x50), 0x201);
 379         outb((bits), 0x201);
 380         spin_unlock_irqrestore(&jazz16_lock, flags);
 381 }
 382
 383 static int init_Jazz16(sb_devc * devc, struct address_info *hw_config)
 384 {
 385         char name[100];
 386         /*
 387          * First try to check that the card has Jazz16 chip. It identifies itself
 388          * by returning 0x12 as response to DSP command 0xfa.
 389          */
 390
 391         if (!sb_dsp_command(devc, 0xfa))
 392                 return 0;
 393
 394         if (sb_dsp_get_byte(devc) != 0x12)
 395                 return 0;
 396
 397         /*
 398          * OK so far. Now configure the IRQ and DMA channel used by the card.
 399          */
 400         if (hw_config->irq < 1 || hw_config->irq > 15 || jazz_irq_bits[hw_config->irq] == 0)
 401         {
 402                 printk(KERN_ERR "Jazz16: Invalid interrupt (IRQ%d)\n", hw_config->irq);
 403                 return 0;
 404         }
 405         if (hw_config->dma < 0 || hw_config->dma > 3 || jazz_dma_bits[hw_config->dma] == 0)
 406         {
 407                   printk(KERN_ERR "Jazz16: Invalid 8 bit DMA (DMA%d)\n", hw_config->dma);
 408                   return 0;
 409         }
 410         if (hw_config->dma2 < 0)
 411         {
 412                 printk(KERN_ERR "Jazz16: No 16 bit DMA channel defined\n");
 413                 return 0;
 414         }
 415         if (hw_config->dma2 < 5 || hw_config->dma2 > 7 || jazz_dma_bits[hw_config->dma2] == 0)
 416         {
 417                 printk(KERN_ERR "Jazz16: Invalid 16 bit DMA (DMA%d)\n", hw_config->dma2);
 418                 return 0;
 419         }
 420         devc->dma16 = hw_config->dma2;
 421
 422         if (!sb_dsp_command(devc, 0xfb))
 423                 return 0;
 424
 425         if (!sb_dsp_command(devc, jazz_dma_bits[hw_config->dma] |
 426                         (jazz_dma_bits[hw_config->dma2] << 4)))
 427                 return 0;
 428
 429         if (!sb_dsp_command(devc, jazz_irq_bits[hw_config->irq]))
 430                 return 0;
 431
 432         /*
 433          * Now we have configured a standard Jazz16 device.
 434          */
 435         devc->model = MDL_JAZZ;
 436         strcpy(name, "Jazz16");
 437
 438         hw_config->name = "Jazz16";
 439         devc->caps |= SB_NO_MIDI;
 440         return 1;
 441 }
 442
 443 static void relocate_ess1688(sb_devc * devc)
 444 {
 445         unsigned char bits;
 446
 447         switch (devc->base)
 448         {
 449                 case 0x220:
 450                         bits = 0x04;
 451                         break;
 452                 case 0x230:
 453                         bits = 0x05;
 454                         break;
 455                 case 0x240:
 456                         bits = 0x06;
 457                         break;
 458                 case 0x250:
 459                         bits = 0x07;
 460                         break;
 461                 default:
 462                         return; /* Wrong port */
 463         }
 464
 465         DDB(printk("Doing ESS1688 address selection\n"));
 466
 467         /*
 468          * ES1688 supports two alternative ways for software address config.
 469          * First try the so called Read-Sequence-Key method.
 470          */
 471
 472         /* Reset the sequence logic */
 473         inb(0x229);
 474         inb(0x229);
 475         inb(0x229);
 476
 477         /* Perform the read sequence */
 478         inb(0x22b);
 479         inb(0x229);
 480         inb(0x22b);
 481         inb(0x229);
 482         inb(0x229);
 483         inb(0x22b);
 484         inb(0x229);
 485
 486         /* Select the base address by reading from it. Then probe using the port. */
 487         inb(devc->base);
 488         if (sb_dsp_reset(devc)) /* Bingo */
 489                 return;
 490
 491 #if 0                           /* This causes system lockups (Nokia 386/25 at least) */
 492         /*
 493          * The last resort is the system control register method.
 494          */
 495
 496         outb((0x00), 0xfb);     /* 0xFB is the unlock register */
 497         outb((0x00), 0xe0);     /* Select index 0 */
 498         outb((bits), 0xe1);     /* Write the config bits */
 499         outb((0x00), 0xf9);     /* 0xFB is the lock register */
 500 #endif
 501 }
 502
 503 int sb_dsp_detect(struct address_info *hw_config, int pci, int pciio, struct sb_module_options *sbmo)
 504 {
 505         sb_devc sb_info;
 506         sb_devc *devc = &sb_info;
 507
 508         memset((char *) &sb_info, 0, sizeof(sb_info));  /* Zero everything */
 509
 510         /* Copy module options in place */
 511         if(sbmo) memcpy(&devc->sbmo, sbmo, sizeof(struct sb_module_options));
 512
 513         sb_info.my_mididev = -1;
 514         sb_info.my_mixerdev = -1;
 515         sb_info.dev = -1;
 516
 517         /*
 518          * Initialize variables
 519          */
 520
 521         DDB(printk("sb_dsp_detect(%x) entered\n", hw_config->io_base));
 522
 523         spin_lock_init(&devc->lock);
 524         devc->type = hw_config->card_subtype;
 525
 526         devc->base = hw_config->io_base;
 527         devc->irq = hw_config->irq;
 528         devc->dma8 = hw_config->dma;
 529
 530         devc->dma16 = -1;
 531         devc->pcibase = pciio;
 532
 533         if(pci == SB_PCI_ESSMAESTRO)
 534         {
 535                 devc->model = MDL_ESSPCI;
 536                 devc->caps |= SB_PCI_IRQ;
 537                 hw_config->driver_use_1 |= SB_PCI_IRQ;
 538                 hw_config->card_subtype = MDL_ESSPCI;
 539         }
 540
 541         if(pci == SB_PCI_YAMAHA)
 542         {
 543                 devc->model = MDL_YMPCI;
 544                 devc->caps |= SB_PCI_IRQ;
 545                 hw_config->driver_use_1 |= SB_PCI_IRQ;
 546                 hw_config->card_subtype = MDL_YMPCI;
 547
 548                 printk("Yamaha PCI mode.\n");
 549         }
 550
 551         if (devc->sbmo.acer)
 552         {
 553                 unsigned long flags;
 554
 555                 spin_lock_irqsave(&devc->lock, flags);
 556                 inb(devc->base + 0x09);
 557                 inb(devc->base + 0x09);
 558                 inb(devc->base + 0x09);
 559                 inb(devc->base + 0x0b);
 560                 inb(devc->base + 0x09);
 561                 inb(devc->base + 0x0b);
 562                 inb(devc->base + 0x09);
 563                 inb(devc->base + 0x09);
 564                 inb(devc->base + 0x0b);
 565                 inb(devc->base + 0x09);
 566                 inb(devc->base + 0x00);
 567                 spin_unlock_irqrestore(&devc->lock, flags);
 568         }
 569         /*
 570          * Detect the device
 571          */
 572
 573         if (sb_dsp_reset(devc))
 574                 dsp_get_vers(devc);
 575         else
 576                 devc->major = 0;
 577
 578         if (devc->type == 0 || devc->type == MDL_JAZZ || devc->type == MDL_SMW)
 579                 if (devc->major == 0 || (devc->major == 3 && devc->minor == 1))
 580                         relocate_Jazz16(devc, hw_config);
 581
 582         if (devc->major == 0 && (devc->type == MDL_ESS || devc->type == 0))
 583                 relocate_ess1688(devc);
 584
 585         if (!sb_dsp_reset(devc))
 586         {
 587                 DDB(printk("SB reset failed\n"));
 588 #ifdef MODULE
 589                 printk(KERN_INFO "sb: dsp reset failed.\n");
 590 #endif
 591                 return 0;
 592         }
 593         if (devc->major == 0)
 594                 dsp_get_vers(devc);
 595
 596         if (devc->major == 3 && devc->minor == 1)
 597         {
 598                 if (devc->type == MDL_AZTECH)           /* SG Washington? */
 599                 {
 600                         if (sb_dsp_command(devc, 0x09))
 601                                 if (sb_dsp_command(devc, 0x00)) /* Enter WSS mode */
 602                                 {
 603                                         int i;
 604
 605                                         /* Have some delay */
 606                                         for (i = 0; i < 10000; i++)
 607                                                 inb(DSP_DATA_AVAIL);
 608                                         devc->caps = SB_NO_AUDIO | SB_NO_MIDI;  /* Mixer only */
 609                                         devc->model = MDL_AZTECH;
 610                                 }
 611                 }
 612         }
 613
 614         if(devc->type == MDL_ESSPCI)
 615                 devc->model = MDL_ESSPCI;
 616
 617         if(devc->type == MDL_YMPCI)
 618         {
 619                 printk("YMPCI selected\n");
 620                 devc->model = MDL_YMPCI;
 621         }
 622
 623         /*
 624          * Save device information for sb_dsp_init()
 625          */
 626
 627
 628         detected_devc = (sb_devc *)kmalloc(sizeof(sb_devc), GFP_KERNEL);
 629         if (detected_devc == NULL)
 630         {
 631                 printk(KERN_ERR "sb: Can't allocate memory for device information\n");
 632                 return 0;
 633         }
 634         memcpy(detected_devc, devc, sizeof(sb_devc));
 635         MDB(printk(KERN_INFO "SB %d.%02d detected OK (%x)\n", devc->major, devc->minor, hw_config->io_base));
 636         return 1;
 637 }
 638
 639 int sb_dsp_init(struct address_info *hw_config, struct module *owner)
 640 {
 641         sb_devc *devc;
 642         char name[100];
 643         extern int sb_be_quiet;
 644         int     mixer22, mixer30;
 645
 646 /*
 647  * Check if we had detected a SB device earlier
 648  */
 649         DDB(printk("sb_dsp_init(%x) entered\n", hw_config->io_base));
 650         name[0] = 0;
 651
 652         if (detected_devc == NULL)
 653         {
 654                 MDB(printk("No detected device\n"));
 655                 return 0;
 656         }
 657         devc = detected_devc;
 658         detected_devc = NULL;
 659
 660         if (devc->base != hw_config->io_base)
 661         {
 662                 DDB(printk("I/O port mismatch\n"));
 663                 release_region(devc->base, 16);
 664                 return 0;
 665         }
 666         /*
 667          * Now continue initialization of the device
 668          */
 669
 670         devc->caps = hw_config->driver_use_1;
 671
 672         if (!((devc->caps & SB_NO_AUDIO) && (devc->caps & SB_NO_MIDI)) && hw_config->irq > 0)
 673         {                       /* IRQ setup */
 674
 675                 /*
 676                  *      ESS PCI cards do shared PCI IRQ stuff. Since they
 677                  *      will get shared PCI irq lines we must cope.
 678                  */
 679
 680                 int i=(devc->caps&SB_PCI_IRQ)?IRQF_SHARED:0;
 681
 682                 if (request_irq(hw_config->irq, sbintr, i, "soundblaster", devc) < 0)
 683                 {
 684                         printk(KERN_ERR "SB: Can't allocate IRQ%d\n", hw_config->irq);
 685                         release_region(devc->base, 16);
 686                         return 0;
 687                 }
 688                 devc->irq_ok = 0;
 689
 690                 if (devc->major == 4)
 691                         if (!sb16_set_irq_hw(devc, devc->irq))  /* Unsupported IRQ */
 692                         {
 693                                 free_irq(devc->irq, devc);
 694                                 release_region(devc->base, 16);
 695                                 return 0;
 696                         }
 697                 if ((devc->type == 0 || devc->type == MDL_ESS) &&
 698                         devc->major == 3 && devc->minor == 1)
 699                 {               /* Handle various chipsets which claim they are SB Pro compatible */
 700                         if ((devc->type != 0 && devc->type != MDL_ESS) ||
 701                                 !ess_init(devc, hw_config))
 702                         {
 703                                 if ((devc->type != 0 && devc->type != MDL_JAZZ &&
 704                                          devc->type != MDL_SMW) || !init_Jazz16(devc, hw_config))
 705                                 {
 706                                         DDB(printk("This is a genuine SB Pro\n"));
 707                                 }
 708                         }
 709                 }
 710                 if (devc->major == 4 && devc->minor <= 11 )     /* Won't work */
 711                         devc->irq_ok = 1;
 712                 else
 713                 {
 714                         int n;
 715
 716                         for (n = 0; n < 3 && devc->irq_ok == 0; n++)
 717                         {
 718                                 if (sb_dsp_command(devc, 0xf2)) /* Cause interrupt immediately */
 719                                 {
 720                                         int i;
 721
 722                                         for (i = 0; !devc->irq_ok && i < 10000; i++);
 723                                 }
 724                         }
 725                         if (!devc->irq_ok)
 726                                 printk(KERN_WARNING "sb: Interrupt test on IRQ%d failed - Probable IRQ conflict\n", devc->irq);
 727                         else
 728                         {
 729                                 DDB(printk("IRQ test OK (IRQ%d)\n", devc->irq));
 730                         }
 731                 }
 732         }                       /* IRQ setup */
 733
 734         last_sb = devc;
 735
 736         switch (devc->major)
 737         {
 738                 case 1:         /* SB 1.0 or 1.5 */
 739                         devc->model = hw_config->card_subtype = MDL_SB1;
 740                         break;
 741
 742                 case 2:         /* SB 2.x */
 743                         if (devc->minor == 0)
 744                                 devc->model = hw_config->card_subtype = MDL_SB2;
 745                         else
 746                                 devc->model = hw_config->card_subtype = MDL_SB201;
 747                         break;
 748
 749                 case 3:         /* SB Pro and most clones */
 750                         switch (devc->model) {
 751                         case 0:
 752                                 devc->model = hw_config->card_subtype = MDL_SBPRO;
 753                                 if (hw_config->name == NULL)
 754                                         hw_config->name = "Sound Blaster Pro (8 BIT ONLY)";
 755                                 break;
 756                         case MDL_ESS:
 757                                 ess_dsp_init(devc, hw_config);
 758                                 break;
 759                         }
 760                         break;
 761
 762                 case 4:
 763                         devc->model = hw_config->card_subtype = MDL_SB16;
 764                         /*
 765                          * ALS007 and ALS100 return DSP version 4.2 and have 2 post-reset !=0
 766                          * registers at 0x3c and 0x4c (output ctrl registers on ALS007) whereas
 767                          * a "standard" SB16 doesn't have a register at 0x4c.  ALS100 actively
 768                          * updates register 0x22 whenever 0x30 changes, as per the SB16 spec.
 769                          * Since ALS007 doesn't, this can be used to differentiate the 2 cards.
 770                          */
 771                         if ((devc->minor == 2) && sb_getmixer(devc,0x3c) && sb_getmixer(devc,0x4c))
 772                         {
 773                                 mixer30 = sb_getmixer(devc,0x30);
 774                                 sb_setmixer(devc,0x22,(mixer22=sb_getmixer(devc,0x22)) & 0x0f);
 775                                 sb_setmixer(devc,0x30,0xff);
 776                                 /* ALS100 will force 0x30 to 0xf8 like SB16; ALS007 will allow 0xff. */
 777                                 /* Register 0x22 & 0xf0 on ALS100 == 0xf0; on ALS007 it == 0x10.     */
 778                                 if ((sb_getmixer(devc,0x30) != 0xff) || ((sb_getmixer(devc,0x22) & 0xf0) != 0x10))
 779                                 {
 780                                         devc->submodel = SUBMDL_ALS100;
 781                                         if (hw_config->name == NULL)
 782                                                 hw_config->name = "Sound Blaster 16 (ALS-100)";
 783                                 }
 784                                 else
 785                                 {
 786                                         sb_setmixer(devc,0x3c,0x1f);    /* Enable all inputs */
 787                                         sb_setmixer(devc,0x4c,0x1f);
 788                                         sb_setmixer(devc,0x22,mixer22); /* Restore 0x22 to original value */
 789                                         devc->submodel = SUBMDL_ALS007;
 790                                         if (hw_config->name == NULL)
 791                                                 hw_config->name = "Sound Blaster 16 (ALS-007)";
 792                                 }
 793                                 sb_setmixer(devc,0x30,mixer30);
 794                         }
 795                         else if (hw_config->name == NULL)
 796                                 hw_config->name = "Sound Blaster 16";
 797
 798                         if (hw_config->dma2 == -1)
 799                                 devc->dma16 = devc->dma8;
 800                         else if (hw_config->dma2 < 5 || hw_config->dma2 > 7)
 801                         {
 802                                 printk(KERN_WARNING  "SB16: Bad or missing 16 bit DMA channel\n");
 803                                 devc->dma16 = devc->dma8;
 804                         }
 805                         else
 806                                 devc->dma16 = hw_config->dma2;
 807
 808                         if(!sb16_set_dma_hw(devc)) {
 809                                 free_irq(devc->irq, devc);
 810                                 release_region(hw_config->io_base, 16);
 811                                 return 0;
 812                         }
 813
 814                         devc->caps |= SB_NO_MIDI;
 815         }
 816
 817         if (!(devc->caps & SB_NO_MIXER))
 818                 if (devc->major == 3 || devc->major == 4)
 819                         sb_mixer_init(devc, owner);
 820
 821         if (!(devc->caps & SB_NO_MIDI))
 822                 sb_dsp_midi_init(devc, owner);
 823
 824         if (hw_config->name == NULL)
 825                 hw_config->name = "Sound Blaster (8 BIT/MONO ONLY)";
 826
 827         sprintf(name, "%s (%d.%02d)", hw_config->name, devc->major, devc->minor);
 828         conf_printf(name, hw_config);
 829
 830         /*
 831          * Assuming that a sound card is Sound Blaster (compatible) is the most common
 832          * configuration error and the mother of all problems. Usually sound cards
 833          * emulate SB Pro but in addition they have a 16 bit native mode which should be
 834          * used in Unix. See Readme.cards for more information about configuring OSS/Free
 835          * properly.
 836          */
 837         if (devc->model <= MDL_SBPRO)
 838         {
 839                 if (devc->major == 3 && devc->minor != 1)       /* "True" SB Pro should have v3.1 (rare ones may have 3.2). */
 840                 {
 841                         printk(KERN_INFO "This sound card may not be fully Sound Blaster Pro compatible.\n");
 842                         printk(KERN_INFO "In many cases there is another way to configure OSS so that\n");
 843                         printk(KERN_INFO "it works properly with OSS (for example in 16 bit mode).\n");
 844                         printk(KERN_INFO "Please ignore this message if you _really_ have a SB Pro.\n");
 845                 }
 846                 else if (!sb_be_quiet && devc->model == MDL_SBPRO)
 847                 {
 848                         printk(KERN_INFO "SB DSP version is just %d.%02d which means that your card is\n", devc->major, devc->minor);
 849                         printk(KERN_INFO "several years old (8 bit only device) or alternatively the sound driver\n");
 850                         printk(KERN_INFO "is incorrectly configured.\n");
 851                 }
 852         }
 853         hw_config->card_subtype = devc->model;
 854         hw_config->slots[0]=devc->dev;
 855         last_devc = devc;       /* For SB MPU detection */
 856
 857         if (!(devc->caps & SB_NO_AUDIO) && devc->dma8 >= 0)
 858         {
 859                 if (sound_alloc_dma(devc->dma8, "SoundBlaster8"))
 860                 {
 861                         printk(KERN_WARNING "Sound Blaster: Can't allocate 8 bit DMA channel %d\n", devc->dma8);
 862                 }
 863                 if (devc->dma16 >= 0 && devc->dma16 != devc->dma8)
 864                 {
 865                         if (sound_alloc_dma(devc->dma16, "SoundBlaster16"))
 866                                 printk(KERN_WARNING "Sound Blaster:  can't allocate 16 bit DMA channel %d.\n", devc->dma16);
 867                 }
 868                 sb_audio_init(devc, name, owner);
 869                 hw_config->slots[0]=devc->dev;
 870         }
 871         else
 872         {
 873                 MDB(printk("Sound Blaster:  no audio devices found.\n"));
 874         }
 875         return 1;
 876 }
 877
 878 /* if (sbmpu) below we allow mpu401 to manage the midi devs
 879    otherwise we have to unload them. (Andrzej Krzysztofowicz) */
 880
 881 void sb_dsp_unload(struct address_info *hw_config, int sbmpu)
 882 {
 883         sb_devc *devc;
 884
 885         devc = audio_devs[hw_config->slots[0]]->devc;
 886
 887         if (devc && devc->base == hw_config->io_base)
 888         {
 889                 if ((devc->model & MDL_ESS) && devc->pcibase)
 890                         release_region(devc->pcibase, 8);
 891
 892                 release_region(devc->base, 16);
 893
 894                 if (!(devc->caps & SB_NO_AUDIO))
 895                 {
 896                         sound_free_dma(devc->dma8);
 897                         if (devc->dma16 >= 0)
 898                                 sound_free_dma(devc->dma16);
 899                 }
 900                 if (!(devc->caps & SB_NO_AUDIO && devc->caps & SB_NO_MIDI))
 901                 {
 902                         if (devc->irq > 0)
 903                                 free_irq(devc->irq, devc);
 904
 905                         sb_mixer_unload(devc);
 906                         /* We don't have to do this bit any more the UART401 is its own
 907                                 master  -- Krzysztof Halasa */
 908                         /* But we have to do it, if UART401 is not detected */
 909                         if (!sbmpu)
 910                                 sound_unload_mididev(devc->my_mididev);
 911                         sound_unload_audiodev(devc->dev);
 912                 }
 913                 kfree(devc);
 914         }
 915         else
 916                 release_region(hw_config->io_base, 16);
 917
 918         kfree(detected_devc);
 919 }
 920
 921 /*
 922  *      Mixer access routines
 923  *
 924  *      ES1887 modifications: some mixer registers reside in the
 925  *      range above 0xa0. These must be accessed in another way.
 926  */
 927
 928 void sb_setmixer(sb_devc * devc, unsigned int port, unsigned int value)
 929 {
 930         unsigned long flags;
 931
 932         if (devc->model == MDL_ESS) {
 933                 ess_setmixer (devc, port, value);
 934                 return;
 935         }
 936
 937         spin_lock_irqsave(&devc->lock, flags);
 938
 939         outb(((unsigned char) (port & 0xff)), MIXER_ADDR);
 940         udelay(20);
 941         outb(((unsigned char) (value & 0xff)), MIXER_DATA);
 942         udelay(20);
 943
 944         spin_unlock_irqrestore(&devc->lock, flags);
 945 }
 946
 947 unsigned int sb_getmixer(sb_devc * devc, unsigned int port)
 948 {
 949         unsigned int val;
 950         unsigned long flags;
 951
 952         if (devc->model == MDL_ESS) return ess_getmixer (devc, port);
 953
 954         spin_lock_irqsave(&devc->lock, flags);
 955
 956         outb(((unsigned char) (port & 0xff)), MIXER_ADDR);
 957         udelay(20);
 958         val = inb(MIXER_DATA);
 959         udelay(20);
 960
 961         spin_unlock_irqrestore(&devc->lock, flags);
 962
 963         return val;
 964 }
 965
 966 void sb_chgmixer
 967         (sb_devc * devc, unsigned int reg, unsigned int mask, unsigned int val)
 968 {
 969         int value;
 970
 971         value = sb_getmixer(devc, reg);
 972         value = (value & ~mask) | (val & mask);
 973         sb_setmixer(devc, reg, value);
 974 }
 975
 976 /*
 977  *      MPU401 MIDI initialization.
 978  */
 979
 980 static void smw_putmem(sb_devc * devc, int base, int addr, unsigned char val)
 981 {
 982         unsigned long flags;
 983
 984         spin_lock_irqsave(&jazz16_lock, flags);  /* NOT the SB card? */
 985
 986         outb((addr & 0xff), base + 1);  /* Low address bits */
 987         outb((addr >> 8), base + 2);    /* High address bits */
 988         outb((val), base);      /* Data */
 989
 990         spin_unlock_irqrestore(&jazz16_lock, flags);
 991 }
 992
 993 static unsigned char smw_getmem(sb_devc * devc, int base, int addr)
 994 {
 995         unsigned long flags;
 996         unsigned char val;
 997
 998         spin_lock_irqsave(&jazz16_lock, flags);  /* NOT the SB card? */
 999
1000         outb((addr & 0xff), base + 1);  /* Low address bits */
1001         outb((addr >> 8), base + 2);    /* High address bits */
1002         val = inb(base);        /* Data */
1003
1004         spin_unlock_irqrestore(&jazz16_lock, flags);
1005         return val;
1006 }
1007
1008 static int smw_midi_init(sb_devc * devc, struct address_info *hw_config)
1009 {
1010         int mpu_base = hw_config->io_base;
1011         int mp_base = mpu_base + 4;             /* Microcontroller base */
1012         int i;
1013         unsigned char control;
1014
1015
1016         /*
1017          *  Reset the microcontroller so that the RAM can be accessed
1018          */
1019
1020         control = inb(mpu_base + 7);
1021         outb((control | 3), mpu_base + 7);      /* Set last two bits to 1 (?) */
1022         outb(((control & 0xfe) | 2), mpu_base + 7);     /* xxxxxxx0 resets the mc */
1023
1024         mdelay(3);      /* Wait at least 1ms */
1025
1026         outb((control & 0xfc), mpu_base + 7);   /* xxxxxx00 enables RAM */
1027
1028         /*
1029          *  Detect microcontroller by probing the 8k RAM area
1030          */
1031         smw_putmem(devc, mp_base, 0, 0x00);
1032         smw_putmem(devc, mp_base, 1, 0xff);
1033         udelay(10);
1034
1035         if (smw_getmem(devc, mp_base, 0) != 0x00 || smw_getmem(devc, mp_base, 1) != 0xff)
1036         {
1037                 DDB(printk("SM Wave: No microcontroller RAM detected (%02x, %02x)\n", smw_getmem(devc, mp_base, 0), smw_getmem(devc, mp_base, 1)));
1038                 return 0;       /* No RAM */
1039         }
1040         /*
1041          *  There is RAM so assume it's really a SM Wave
1042          */
1043
1044         devc->model = MDL_SMW;
1045         smw_mixer_init(devc);
1046
1047 #ifdef MODULE
1048         if (!smw_ucode)
1049         {
1050                 smw_ucodeLen = mod_firmware_load("/etc/sound/midi0001.bin", (void *) &smw_ucode);
1051                 smw_free = smw_ucode;
1052         }
1053 #endif
1054         if (smw_ucodeLen > 0)
1055         {
1056                 if (smw_ucodeLen != 8192)
1057                 {
1058                         printk(KERN_ERR "SM Wave: Invalid microcode (MIDI0001.BIN) length\n");
1059                         return 1;
1060                 }
1061                 /*
1062                  *  Download microcode
1063                  */
1064
1065                 for (i = 0; i < 8192; i++)
1066                         smw_putmem(devc, mp_base, i, smw_ucode[i]);
1067
1068                 /*
1069                  *  Verify microcode
1070                  */
1071
1072                 for (i = 0; i < 8192; i++)
1073                         if (smw_getmem(devc, mp_base, i) != smw_ucode[i])
1074                         {
1075                                 printk(KERN_ERR "SM Wave: Microcode verification failed\n");
1076                                 return 0;
1077                         }
1078         }
1079         control = 0;
1080 #ifdef SMW_SCSI_IRQ
1081         /*
1082          * Set the SCSI interrupt (IRQ2/9, IRQ3 or IRQ10). The SCSI interrupt
1083          * is disabled by default.
1084          *
1085          * FIXME - make this a module option
1086          *
1087          * BTW the Zilog 5380 SCSI controller is located at MPU base + 0x10.
1088          */
1089         {
1090                 static unsigned char scsi_irq_bits[] = {
1091                         0, 0, 3, 1, 0, 0, 0, 0, 0, 3, 2, 0, 0, 0, 0, 0
1092                 };
1093                 control |= scsi_irq_bits[SMW_SCSI_IRQ] << 6;
1094         }
1095 #endif
1096
1097 #ifdef SMW_OPL4_ENABLE
1098         /*
1099          *  Make the OPL4 chip visible on the PC bus at 0x380.
1100          *
1101          *  There is no need to enable this feature since this driver
1102          *  doesn't support OPL4 yet. Also there is no RAM in SM Wave so
1103          *  enabling OPL4 is pretty useless.
1104          */
1105         control |= 0x10;        /* Uses IRQ12 if bit 0x20 == 0 */
1106         /* control |= 0x20;      Uncomment this if you want to use IRQ7 */
1107 #endif
1108         outb((control | 0x03), mpu_base + 7);   /* xxxxxx11 restarts */
1109         hw_config->name = "SoundMan Wave";
1110         return 1;
1111 }
1112
1113 static int init_Jazz16_midi(sb_devc * devc, struct address_info *hw_config)
1114 {
1115         int mpu_base = hw_config->io_base;
1116         int sb_base = devc->base;
1117         int irq = hw_config->irq;
1118
1119         unsigned char bits = 0;
1120         unsigned long flags;
1121
1122         if (irq < 0)
1123                 irq *= -1;
1124
1125         if (irq < 1 || irq > 15 ||
1126             jazz_irq_bits[irq] == 0)
1127         {
1128                 printk(KERN_ERR "Jazz16: Invalid MIDI interrupt (IRQ%d)\n", irq);
1129                 return 0;
1130         }
1131         switch (sb_base)
1132         {
1133                 case 0x220:
1134                         bits = 1;
1135                         break;
1136                 case 0x240:
1137                         bits = 2;
1138                         break;
1139                 case 0x260:
1140                         bits = 3;
1141                         break;
1142                 default:
1143                         return 0;
1144         }
1145         bits = jazz16_bits = bits << 5;
1146         switch (mpu_base)
1147         {
1148                 case 0x310:
1149                         bits |= 1;
1150                         break;
1151                 case 0x320:
1152                         bits |= 2;
1153                         break;
1154                 case 0x330:
1155                         bits |= 3;
1156                         break;
1157                 default:
1158                         printk(KERN_ERR "Jazz16: Invalid MIDI I/O port %x\n", mpu_base);
1159                         return 0;
1160         }
1161         /*
1162          *      Magic wake up sequence by writing to 0x201 (aka Joystick port)
1163          */
1164         spin_lock_irqsave(&jazz16_lock, flags);
1165         outb(0xAF, 0x201);
1166         outb(0x50, 0x201);
1167         outb(bits, 0x201);
1168         spin_unlock_irqrestore(&jazz16_lock, flags);
1169
1170         hw_config->name = "Jazz16";
1171         smw_midi_init(devc, hw_config);
1172
1173         if (!sb_dsp_command(devc, 0xfb))
1174                 return 0;
1175
1176         if (!sb_dsp_command(devc, jazz_dma_bits[devc->dma8] |
1177                             (jazz_dma_bits[devc->dma16] << 4)))
1178                 return 0;
1179
1180         if (!sb_dsp_command(devc, jazz_irq_bits[devc->irq] |
1181                             (jazz_irq_bits[irq] << 4)))
1182                 return 0;
1183
1184         return 1;
1185 }
1186
1187 int probe_sbmpu(struct address_info *hw_config, struct module *owner)
1188 {
1189         sb_devc *devc = last_devc;
1190         int ret;
1191
1192         if (last_devc == NULL)
1193                 return 0;
1194
1195         last_devc = NULL;
1196
1197         if (hw_config->io_base <= 0)
1198         {
1199                 /* The real vibra16 is fine about this, but we have to go
1200                    wipe up after Cyrix again */
1201
1202                 if(devc->model == MDL_SB16 && devc->minor >= 12)
1203                 {
1204                         unsigned char   bits = sb_getmixer(devc, 0x84) & ~0x06;
1205                         sb_setmixer(devc, 0x84, bits | 0x02);           /* Disable MPU */
1206                 }
1207                 return 0;
1208         }
1209
1210 #if defined(CONFIG_SOUND_MPU401)
1211         if (devc->model == MDL_ESS)
1212         {
1213                 struct resource *ports;
1214                 ports = request_region(hw_config->io_base, 2, "mpu401");
1215                 if (!ports) {
1216                         printk(KERN_ERR "sbmpu: I/O port conflict (%x)\n", hw_config->io_base);
1217                         return 0;
1218                 }
1219                 if (!ess_midi_init(devc, hw_config)) {
1220                         release_region(hw_config->io_base, 2);
1221                         return 0;
1222                 }
1223                 hw_config->name = "ESS1xxx MPU";
1224                 devc->midi_irq_cookie = NULL;
1225                 if (!probe_mpu401(hw_config, ports)) {
1226                         release_region(hw_config->io_base, 2);
1227                         return 0;
1228                 }
1229                 attach_mpu401(hw_config, owner);
1230                 if (last_sb->irq == -hw_config->irq)
1231                         last_sb->midi_irq_cookie=(void *)hw_config->slots[1];
1232                 return 1;
1233         }
1234 #endif
1235
1236         switch (devc->model)
1237         {
1238                 case MDL_SB16:
1239                         if (hw_config->io_base != 0x300 && hw_config->io_base != 0x330)
1240                         {
1241                                 printk(KERN_ERR "SB16: Invalid MIDI port %x\n", hw_config->io_base);
1242                                 return 0;
1243                         }
1244                         hw_config->name = "Sound Blaster 16";
1245                         if (hw_config->irq < 3 || hw_config->irq == devc->irq)
1246                                 hw_config->irq = -devc->irq;
1247                         if (devc->minor > 12)           /* What is Vibra's version??? */
1248                                 sb16_set_mpu_port(devc, hw_config);
1249                         break;
1250
1251                 case MDL_JAZZ:
1252                         if (hw_config->irq < 3 || hw_config->irq == devc->irq)
1253                                 hw_config->irq = -devc->irq;
1254                         if (!init_Jazz16_midi(devc, hw_config))
1255                                 return 0;
1256                         break;
1257
1258                 case MDL_YMPCI:
1259                         hw_config->name = "Yamaha PCI Legacy";
1260                         printk("Yamaha PCI legacy UART401 check.\n");
1261                         break;
1262                 default:
1263                         return 0;
1264         }
1265
1266         ret = probe_uart401(hw_config, owner);
1267         if (ret)
1268                 last_sb->midi_irq_cookie=midi_devs[hw_config->slots[4]]->devc;
1269         return ret;
1270 }
1271
1272 void unload_sbmpu(struct address_info *hw_config)
1273 {
1274 #if defined(CONFIG_SOUND_MPU401)
1275         if (!strcmp (hw_config->name, "ESS1xxx MPU")) {
1276                 unload_mpu401(hw_config);
1277                 return;
1278         }
1279 #endif
1280         unload_uart401(hw_config);
1281 }
1282
1283 EXPORT_SYMBOL(sb_dsp_init);
1284 EXPORT_SYMBOL(sb_dsp_detect);
1285 EXPORT_SYMBOL(sb_dsp_unload);
1286 EXPORT_SYMBOL(sb_be_quiet);
1287 EXPORT_SYMBOL(probe_sbmpu);
1288 EXPORT_SYMBOL(unload_sbmpu);
1289 EXPORT_SYMBOL(smw_free);
1290 MODULE_LICENSE("GPL");