sound/oss/sb_common.c

   1 /*
   2  * sound/oss/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 #include <linux/slab.h>
  35
  36 #include "sound_config.h"
  37 #include "sound_firmware.h"
  38
  39 #include "mpu401.h"
  40
  41 #include "sb_mixer.h"
  42 #include "sb.h"
  43 #include "sb_ess.h"
  44
  45 /*
  46  * global module flag
  47  */
  48
  49 int sb_be_quiet;
  50
  51 static sb_devc *detected_devc;  /* For communication from probe to init */
  52 static sb_devc *last_devc;      /* For MPU401 initialization */
  53
  54 static unsigned char jazz_irq_bits[] = {
  55         0, 0, 2, 3, 0, 1, 0, 4, 0, 2, 5, 0, 0, 0, 0, 6
  56 };
  57
  58 static unsigned char jazz_dma_bits[] = {
  59         0, 1, 0, 2, 0, 3, 0, 4
  60 };
  61
  62 void *smw_free;
  63
  64 /*
  65  * Jazz16 chipset specific control variables
  66  */
  67
  68 static int jazz16_base;                 /* Not detected */
  69 static unsigned char jazz16_bits;       /* I/O relocation bits */
  70 static DEFINE_SPINLOCK(jazz16_lock);
  71
  72 /*
  73  * Logitech Soundman Wave specific initialization code
  74  */
  75
  76 #ifdef SMW_MIDI0001_INCLUDED
  77 #include "smw-midi0001.h"
  78 #else
  79 static unsigned char *smw_ucode;
  80 static int      smw_ucodeLen;
  81
  82 #endif
  83
  84 static sb_devc *last_sb;                /* Last sb loaded */
  85
  86 int sb_dsp_command(sb_devc * devc, unsigned char val)
  87 {
  88         int i;
  89         unsigned long limit;
  90
  91         limit = jiffies + HZ / 10;      /* Timeout */
  92
  93         /*
  94          * Note! the i<500000 is an emergency exit. The sb_dsp_command() is sometimes
  95          * called while interrupts are disabled. This means that the timer is
  96          * disabled also. However the timeout situation is a abnormal condition.
  97          * Normally the DSP should be ready to accept commands after just couple of
  98          * loops.
  99          */
 100
 101         for (i = 0; i < 500000 && (limit-jiffies)>0; i++)
 102         {
 103                 if ((inb(DSP_STATUS) & 0x80) == 0)
 104                 {
 105                         outb((val), DSP_COMMAND);
 106                         return 1;
 107                 }
 108         }
 109         printk(KERN_WARNING "Sound Blaster:  DSP command(%x) timeout.\n", val);
 110         return 0;
 111 }
 112
 113 int sb_dsp_get_byte(sb_devc * devc)
 114 {
 115         int i;
 116
 117         for (i = 1000; i; i--)
 118         {
 119                 if (inb(DSP_DATA_AVAIL) & 0x80)
 120                         return inb(DSP_READ);
 121         }
 122         return 0xffff;
 123 }
 124
 125 static void sb_intr (sb_devc *devc)
 126 {
 127         int status;
 128         unsigned char   src = 0xff;
 129
 130         if (devc->model == MDL_SB16)
 131         {
 132                 src = sb_getmixer(devc, IRQ_STAT);      /* Interrupt source register */
 133
 134                 if (src & 4)                                            /* MPU401 interrupt */
 135                         if(devc->midi_irq_cookie)
 136                                 uart401intr(devc->irq, devc->midi_irq_cookie);
 137
 138                 if (!(src & 3))
 139                         return; /* Not a DSP interrupt */
 140         }
 141         if (devc->intr_active && (!devc->fullduplex || (src & 0x01)))
 142         {
 143                 switch (devc->irq_mode)
 144                 {
 145                         case IMODE_OUTPUT:
 146                                 DMAbuf_outputintr(devc->dev, 1);
 147                                 break;
 148
 149                         case IMODE_INPUT:
 150                                 DMAbuf_inputintr(devc->dev);
 151                                 break;
 152
 153                         case IMODE_INIT:
 154                                 break;
 155
 156                         case IMODE_MIDI:
 157                                 sb_midi_interrupt(devc);
 158                                 break;
 159
 160                         default:
 161                                 /* printk(KERN_WARNING "Sound Blaster: Unexpected interrupt\n"); */
 162                                 ;
 163                 }
 164         }
 165         else if (devc->intr_active_16 && (src & 0x02))
 166         {
 167                 switch (devc->irq_mode_16)
 168                 {
 169                         case IMODE_OUTPUT:
 170                                 DMAbuf_outputintr(devc->dev, 1);
 171                                 break;
 172
 173                         case IMODE_INPUT:
 174                                 DMAbuf_inputintr(devc->dev);
 175                                 break;
 176
 177                         case IMODE_INIT:
 178                                 break;
 179
 180                         default:
 181                                 /* printk(KERN_WARNING "Sound Blaster: Unexpected interrupt\n"); */
 182                                 ;
 183                 }
 184         }
 185         /*
 186          * Acknowledge interrupts
 187          */
 188
 189         if (src & 0x01)
 190                 status = inb(DSP_DATA_AVAIL);
 191
 192         if (devc->model == MDL_SB16 && src & 0x02)
 193                 status = inb(DSP_DATA_AVL16);
 194 }
 195
 196 static void pci_intr(sb_devc *devc)
 197 {
 198         int src = inb(devc->pcibase+0x1A);
 199         src&=3;
 200         if(src)
 201                 sb_intr(devc);
 202 }
 203
 204 static irqreturn_t sbintr(int irq, void *dev_id)
 205 {
 206         sb_devc *devc = dev_id;
 207
 208         devc->irq_ok = 1;
 209
 210         switch (devc->model) {
 211         case MDL_ESSPCI:
 212                 pci_intr (devc);
 213                 break;
 214
 215         case MDL_ESS:
 216                 ess_intr (devc);
 217                 break;
 218         default:
 219                 sb_intr (devc);
 220                 break;
 221         }
 222         return IRQ_HANDLED;
 223 }
 224
 225 int sb_dsp_reset(sb_devc * devc)
 226 {
 227         int loopc;
 228
 229         DEB(printk("Entered sb_dsp_reset()\n"));
 230
 231         if (devc->model == MDL_ESS) return ess_dsp_reset (devc);
 232
 233         /* This is only for non-ESS chips */
 234
 235         outb(1, DSP_RESET);
 236
 237         udelay(10);
 238         outb(0, DSP_RESET);
 239         udelay(30);
 240
 241         for (loopc = 0; loopc < 1000 && !(inb(DSP_DATA_AVAIL) & 0x80); loopc++);
 242
 243         if (inb(DSP_READ) != 0xAA)
 244         {
 245                 DDB(printk("sb: No response to RESET\n"));
 246                 return 0;       /* Sorry */
 247         }
 248
 249         DEB(printk("sb_dsp_reset() OK\n"));
 250
 251         return 1;
 252 }
 253
 254 static void dsp_get_vers(sb_devc * devc)
 255 {
 256         int i;
 257
 258         unsigned long   flags;
 259
 260         DDB(printk("Entered dsp_get_vers()\n"));
 261         spin_lock_irqsave(&devc->lock, flags);
 262         devc->major = devc->minor = 0;
 263         sb_dsp_command(devc, 0xe1);     /* Get version */
 264
 265         for (i = 100000; i; i--)
 266         {
 267                 if (inb(DSP_DATA_AVAIL) & 0x80)
 268                 {
 269                         if (devc->major == 0)
 270                                 devc->major = inb(DSP_READ);
 271                         else
 272                         {
 273                                 devc->minor = inb(DSP_READ);
 274                                 break;
 275                         }
 276                 }
 277         }
 278         spin_unlock_irqrestore(&devc->lock, flags);
 279         DDB(printk("DSP version %d.%02d\n", devc->major, devc->minor));
 280 }
 281
 282 static int sb16_set_dma_hw(sb_devc * devc)
 283 {
 284         int bits;
 285
 286         if (devc->dma8 != 0 && devc->dma8 != 1 && devc->dma8 != 3)
 287         {
 288                 printk(KERN_ERR "SB16: Invalid 8 bit DMA (%d)\n", devc->dma8);
 289                 return 0;
 290         }
 291         bits = (1 << devc->dma8);
 292
 293         if (devc->dma16 >= 5 && devc->dma16 <= 7)
 294                 bits |= (1 << devc->dma16);
 295
 296         sb_setmixer(devc, DMA_NR, bits);
 297         return 1;
 298 }
 299
 300 static void sb16_set_mpu_port(sb_devc * devc, struct address_info *hw_config)
 301 {
 302         /*
 303          * This routine initializes new MIDI port setup register of SB Vibra (CT2502).
 304          */
 305         unsigned char   bits = sb_getmixer(devc, 0x84) & ~0x06;
 306
 307         switch (hw_config->io_base)
 308         {
 309                 case 0x300:
 310                         sb_setmixer(devc, 0x84, bits | 0x04);
 311                         break;
 312
 313                 case 0x330:
 314                         sb_setmixer(devc, 0x84, bits | 0x00);
 315                         break;
 316
 317                 default:
 318                         sb_setmixer(devc, 0x84, bits | 0x02);           /* Disable MPU */
 319                         printk(KERN_ERR "SB16: Invalid MIDI I/O port %x\n", hw_config->io_base);
 320         }
 321 }
 322
 323 static int sb16_set_irq_hw(sb_devc * devc, int level)
 324 {
 325         int ival;
 326
 327         switch (level)
 328         {
 329                 case 5:
 330                         ival = 2;
 331                         break;
 332                 case 7:
 333                         ival = 4;
 334                         break;
 335                 case 9:
 336                         ival = 1;
 337                         break;
 338                 case 10:
 339                         ival = 8;
 340                         break;
 341                 default:
 342                         printk(KERN_ERR "SB16: Invalid IRQ%d\n", level);
 343                         return 0;
 344         }
 345         sb_setmixer(devc, IRQ_NR, ival);
 346         return 1;
 347 }
 348
 349 static void relocate_Jazz16(sb_devc * devc, struct address_info *hw_config)
 350 {
 351         unsigned char bits = 0;
 352         unsigned long flags;
 353
 354         if (jazz16_base != 0 && jazz16_base != hw_config->io_base)
 355                 return;
 356
 357         switch (hw_config->io_base)
 358         {
 359                 case 0x220:
 360                         bits = 1;
 361                         break;
 362                 case 0x240:
 363                         bits = 2;
 364                         break;
 365                 case 0x260:
 366                         bits = 3;
 367                         break;
 368                 default:
 369                         return;
 370         }
 371         bits = jazz16_bits = bits << 5;
 372         jazz16_base = hw_config->io_base;
 373
 374         /*
 375          *      Magic wake up sequence by writing to 0x201 (aka Joystick port)
 376          */
 377         spin_lock_irqsave(&jazz16_lock, flags);
 378         outb((0xAF), 0x201);
 379         outb((0x50), 0x201);
 380         outb((bits), 0x201);
 381         spin_unlock_irqrestore(&jazz16_lock, flags);
 382 }
 383
 384 static int init_Jazz16(sb_devc * devc, struct address_info *hw_config)
 385 {
 386         char name[100];
 387         /*
 388          * First try to check that the card has Jazz16 chip. It identifies itself
 389          * by returning 0x12 as response to DSP command 0xfa.
 390          */
 391
 392         if (!sb_dsp_command(devc, 0xfa))
 393                 return 0;
 394
 395         if (sb_dsp_get_byte(devc) != 0x12)
 396                 return 0;
 397
 398         /*
 399          * OK so far. Now configure the IRQ and DMA channel used by the card.
 400          */
 401         if (hw_config->irq < 1 || hw_config->irq > 15 || jazz_irq_bits[hw_config->irq] == 0)
 402         {
 403                 printk(KERN_ERR "Jazz16: Invalid interrupt (IRQ%d)\n", hw_config->irq);
 404                 return 0;
 405         }
 406         if (hw_config->dma < 0 || hw_config->dma > 3 || jazz_dma_bits[hw_config->dma] == 0)
 407         {
 408                   printk(KERN_ERR "Jazz16: Invalid 8 bit DMA (DMA%d)\n", hw_config->dma);
 409                   return 0;
 410         }
 411         if (hw_config->dma2 < 0)
 412         {
 413                 printk(KERN_ERR "Jazz16: No 16 bit DMA channel defined\n");
 414                 return 0;
 415         }
 416         if (hw_config->dma2 < 5 || hw_config->dma2 > 7 || jazz_dma_bits[hw_config->dma2] == 0)
 417         {
 418                 printk(KERN_ERR "Jazz16: Invalid 16 bit DMA (DMA%d)\n", hw_config->dma2);
 419                 return 0;
 420         }
 421         devc->dma16 = hw_config->dma2;
 422
 423         if (!sb_dsp_command(devc, 0xfb))
 424                 return 0;
 425
 426         if (!sb_dsp_command(devc, jazz_dma_bits[hw_config->dma] |
 427                         (jazz_dma_bits[hw_config->dma2] << 4)))
 428                 return 0;
 429
 430         if (!sb_dsp_command(devc, jazz_irq_bits[hw_config->irq]))
 431                 return 0;
 432
 433         /*
 434          * Now we have configured a standard Jazz16 device.
 435          */
 436         devc->model = MDL_JAZZ;
 437         strcpy(name, "Jazz16");
 438
 439         hw_config->name = "Jazz16";
 440         devc->caps |= SB_NO_MIDI;
 441         return 1;
 442 }
 443
 444 static void relocate_ess1688(sb_devc * devc)
 445 {
 446         unsigned char bits;
 447
 448         switch (devc->base)
 449         {
 450                 case 0x220:
 451                         bits = 0x04;
 452                         break;
 453                 case 0x230:
 454                         bits = 0x05;
 455                         break;
 456                 case 0x240:
 457                         bits = 0x06;
 458                         break;
 459                 case 0x250:
 460                         bits = 0x07;
 461                         break;
 462                 default:
 463                         return; /* Wrong port */
 464         }
 465
 466         DDB(printk("Doing ESS1688 address selection\n"));
 467
 468         /*
 469          * ES1688 supports two alternative ways for software address config.
 470          * First try the so called Read-Sequence-Key method.
 471          */
 472
 473         /* Reset the sequence logic */
 474         inb(0x229);
 475         inb(0x229);
 476         inb(0x229);
 477
 478         /* Perform the read sequence */
 479         inb(0x22b);
 480         inb(0x229);
 481         inb(0x22b);
 482         inb(0x229);
 483         inb(0x229);
 484         inb(0x22b);
 485         inb(0x229);
 486
 487         /* Select the base address by reading from it. Then probe using the port. */
 488         inb(devc->base);
 489         if (sb_dsp_reset(devc)) /* Bingo */
 490                 return;
 491
 492 #if 0                           /* This causes system lockups (Nokia 386/25 at least) */
 493         /*
 494          * The last resort is the system control register method.
 495          */
 496
 497         outb((0x00), 0xfb);     /* 0xFB is the unlock register */
 498         outb((0x00), 0xe0);     /* Select index 0 */
 499         outb((bits), 0xe1);     /* Write the config bits */
 500         outb((0x00), 0xf9);     /* 0xFB is the lock register */
 501 #endif
 502 }
 503
 504 int sb_dsp_detect(struct address_info *hw_config, int pci, int pciio, struct sb_module_options *sbmo)
 505 {
 506         sb_devc sb_info;
 507         sb_devc *devc = &sb_info;
 508
 509         memset((char *) &sb_info, 0, sizeof(sb_info));  /* Zero everything */
 510
 511         /* Copy module options in place */
 512         if(sbmo) memcpy(&devc->sbmo, sbmo, sizeof(struct sb_module_options));
 513
 514         sb_info.my_mididev = -1;
 515         sb_info.my_mixerdev = -1;
 516         sb_info.dev = -1;
 517
 518         /*
 519          * Initialize variables
 520          */
 521
 522         DDB(printk("sb_dsp_detect(%x) entered\n", hw_config->io_base));
 523
 524         spin_lock_init(&devc->lock);
 525         devc->type = hw_config->card_subtype;
 526
 527         devc->base = hw_config->io_base;
 528         devc->irq = hw_config->irq;
 529         devc->dma8 = hw_config->dma;
 530
 531         devc->dma16 = -1;
 532         devc->pcibase = pciio;
 533
 534         if(pci == SB_PCI_ESSMAESTRO)
 535         {
 536                 devc->model = MDL_ESSPCI;
 537                 devc->caps |= SB_PCI_IRQ;
 538                 hw_config->driver_use_1 |= SB_PCI_IRQ;
 539                 hw_config->card_subtype = MDL_ESSPCI;
 540         }
 541
 542         if(pci == SB_PCI_YAMAHA)
 543         {
 544                 devc->model = MDL_YMPCI;
 545                 devc->caps |= SB_PCI_IRQ;
 546                 hw_config->driver_use_1 |= SB_PCI_IRQ;
 547                 hw_config->card_subtype = MDL_YMPCI;
 548
 549                 printk("Yamaha PCI mode.\n");
 550         }
 551
 552         if (devc->sbmo.acer)
 553         {
 554                 unsigned long flags;
 555
 556                 spin_lock_irqsave(&devc->lock, flags);
 557                 inb(devc->base + 0x09);
 558                 inb(devc->base + 0x09);
 559                 inb(devc->base + 0x09);
 560                 inb(devc->base + 0x0b);
 561                 inb(devc->base + 0x09);
 562                 inb(devc->base + 0x0b);
 563                 inb(devc->base + 0x09);
 564                 inb(devc->base + 0x09);
 565                 inb(devc->base + 0x0b);
 566                 inb(devc->base + 0x09);
 567                 inb(devc->base + 0x00);
 568                 spin_unlock_irqrestore(&devc->lock, flags);
 569         }
 570         /*
 571          * Detect the device
 572          */
 573
 574         if (sb_dsp_reset(devc))
 575                 dsp_get_vers(devc);
 576         else
 577                 devc->major = 0;
 578
 579         if (devc->type == 0 || devc->type == MDL_JAZZ || devc->type == MDL_SMW)
 580                 if (devc->major == 0 || (devc->major == 3 && devc->minor == 1))
 581                         relocate_Jazz16(devc, hw_config);
 582
 583         if (devc->major == 0 && (devc->type == MDL_ESS || devc->type == 0))
 584                 relocate_ess1688(devc);
 585
 586         if (!sb_dsp_reset(devc))
 587         {
 588                 DDB(printk("SB reset failed\n"));
 589 #ifdef MODULE
 590                 printk(KERN_INFO "sb: dsp reset failed.\n");
 591 #endif
 592                 return 0;
 593         }
 594         if (devc->major == 0)
 595                 dsp_get_vers(devc);
 596
 597         if (devc->major == 3 && devc->minor == 1)
 598         {
 599                 if (devc->type == MDL_AZTECH)           /* SG Washington? */
 600                 {
 601                         if (sb_dsp_command(devc, 0x09))
 602                                 if (sb_dsp_command(devc, 0x00)) /* Enter WSS mode */
 603                                 {
 604                                         int i;
 605
 606                                         /* Have some delay */
 607                                         for (i = 0; i < 10000; i++)
 608                                                 inb(DSP_DATA_AVAIL);
 609                                         devc->caps = SB_NO_AUDIO | SB_NO_MIDI;  /* Mixer only */
 610                                         devc->model = MDL_AZTECH;
 611                                 }
 612                 }
 613         }
 614
 615         if(devc->type == MDL_ESSPCI)
 616                 devc->model = MDL_ESSPCI;
 617
 618         if(devc->type == MDL_YMPCI)
 619         {
 620                 printk("YMPCI selected\n");
 621                 devc->model = MDL_YMPCI;
 622         }
 623
 624         /*
 625          * Save device information for sb_dsp_init()
 626          */
 627
 628
 629         detected_devc = kmalloc(sizeof(sb_devc), GFP_KERNEL);
 630         if (detected_devc == NULL)
 631         {
 632                 printk(KERN_ERR "sb: Can't allocate memory for device information\n");
 633                 return 0;
 634         }
 635         memcpy(detected_devc, devc, sizeof(sb_devc));
 636         MDB(printk(KERN_INFO "SB %d.%02d detected OK (%x)\n", devc->major, devc->minor, hw_config->io_base));
 637         return 1;
 638 }
 639
 640 int sb_dsp_init(struct address_info *hw_config, struct module *owner)
 641 {
 642         sb_devc *devc;
 643         char name[100];
 644         extern int sb_be_quiet;
 645         int     mixer22, mixer30;
 646
 647 /*
 648  * Check if we had detected a SB device earlier
 649  */
 650         DDB(printk("sb_dsp_init(%x) entered\n", hw_config->io_base));
 651         name[0] = 0;
 652
 653         if (detected_devc == NULL)
 654         {
 655                 MDB(printk("No detected device\n"));
 656                 return 0;
 657         }
 658         devc = detected_devc;
 659         detected_devc = NULL;
 660
 661         if (devc->base != hw_config->io_base)
 662         {
 663                 DDB(printk("I/O port mismatch\n"));
 664                 release_region(devc->base, 16);
 665                 return 0;
 666         }
 667         /*
 668          * Now continue initialization of the device
 669          */
 670
 671         devc->caps = hw_config->driver_use_1;
 672
 673         if (!((devc->caps & SB_NO_AUDIO) && (devc->caps & SB_NO_MIDI)) && hw_config->irq > 0)
 674         {                       /* IRQ setup */
 675
 676                 /*
 677                  *      ESS PCI cards do shared PCI IRQ stuff. Since they
 678                  *      will get shared PCI irq lines we must cope.
 679                  */
 680
 681                 int i=(devc->caps&SB_PCI_IRQ)?IRQF_SHARED:0;
 682
 683                 if (request_irq(hw_config->irq, sbintr, i, "soundblaster", devc) < 0)
 684                 {
 685                         printk(KERN_ERR "SB: Can't allocate IRQ%d\n", hw_config->irq);
 686                         release_region(devc->base, 16);
 687                         return 0;
 688                 }
 689                 devc->irq_ok = 0;
 690
 691                 if (devc->major == 4)
 692                         if (!sb16_set_irq_hw(devc, devc->irq))  /* Unsupported IRQ */
 693                         {
 694                                 free_irq(devc->irq, devc);
 695                                 release_region(devc->base, 16);
 696                                 return 0;
 697                         }
 698                 if ((devc->type == 0 || devc->type == MDL_ESS) &&
 699                         devc->major == 3 && devc->minor == 1)
 700                 {               /* Handle various chipsets which claim they are SB Pro compatible */
 701                         if ((devc->type != 0 && devc->type != MDL_ESS) ||
 702                                 !ess_init(devc, hw_config))
 703                         {
 704                                 if ((devc->type != 0 && devc->type != MDL_JAZZ &&
 705                                          devc->type != MDL_SMW) || !init_Jazz16(devc, hw_config))
 706                                 {
 707                                         DDB(printk("This is a genuine SB Pro\n"));
 708                                 }
 709                         }
 710                 }
 711                 if (devc->major == 4 && devc->minor <= 11 )     /* Won't work */
 712                         devc->irq_ok = 1;
 713                 else
 714                 {
 715                         int n;
 716
 717                         for (n = 0; n < 3 && devc->irq_ok == 0; n++)
 718                         {
 719                                 if (sb_dsp_command(devc, 0xf2)) /* Cause interrupt immediately */
 720                                 {
 721                                         int i;
 722
 723                                         for (i = 0; !devc->irq_ok && i < 10000; i++);
 724                                 }
 725                         }
 726                         if (!devc->irq_ok)
 727                                 printk(KERN_WARNING "sb: Interrupt test on IRQ%d failed - Probable IRQ conflict\n", devc->irq);
 728                         else
 729                         {
 730                                 DDB(printk("IRQ test OK (IRQ%d)\n", devc->irq));
 731                         }
 732                 }
 733         }                       /* IRQ setup */
 734
 735         last_sb = devc;
 736
 737         switch (devc->major)
 738         {
 739                 case 1:         /* SB 1.0 or 1.5 */
 740                         devc->model = hw_config->card_subtype = MDL_SB1;
 741                         break;
 742
 743                 case 2:         /* SB 2.x */
 744                         if (devc->minor == 0)
 745                                 devc->model = hw_config->card_subtype = MDL_SB2;
 746                         else
 747                                 devc->model = hw_config->card_subtype = MDL_SB201;
 748                         break;
 749
 750                 case 3:         /* SB Pro and most clones */
 751                         switch (devc->model) {
 752                         case 0:
 753                                 devc->model = hw_config->card_subtype = MDL_SBPRO;
 754                                 if (hw_config->name == NULL)
 755                                         hw_config->name = "Sound Blaster Pro (8 BIT ONLY)";
 756                                 break;
 757                         case MDL_ESS:
 758                                 ess_dsp_init(devc, hw_config);
 759                                 break;
 760                         }
 761                         break;
 762
 763                 case 4:
 764                         devc->model = hw_config->card_subtype = MDL_SB16;
 765                         /*
 766                          * ALS007 and ALS100 return DSP version 4.2 and have 2 post-reset !=0
 767                          * registers at 0x3c and 0x4c (output ctrl registers on ALS007) whereas
 768                          * a "standard" SB16 doesn't have a register at 0x4c.  ALS100 actively
 769                          * updates register 0x22 whenever 0x30 changes, as per the SB16 spec.
 770                          * Since ALS007 doesn't, this can be used to differentiate the 2 cards.
 771                          */
 772                         if ((devc->minor == 2) && sb_getmixer(devc,0x3c) && sb_getmixer(devc,0x4c))
 773                         {
 774                                 mixer30 = sb_getmixer(devc,0x30);
 775                                 sb_setmixer(devc,0x22,(mixer22=sb_getmixer(devc,0x22)) & 0x0f);
 776                                 sb_setmixer(devc,0x30,0xff);
 777                                 /* ALS100 will force 0x30 to 0xf8 like SB16; ALS007 will allow 0xff. */
 778                                 /* Register 0x22 & 0xf0 on ALS100 == 0xf0; on ALS007 it == 0x10.     */
 779                                 if ((sb_getmixer(devc,0x30) != 0xff) || ((sb_getmixer(devc,0x22) & 0xf0) != 0x10))
 780                                 {
 781                                         devc->submodel = SUBMDL_ALS100;
 782                                         if (hw_config->name == NULL)
 783                                                 hw_config->name = "Sound Blaster 16 (ALS-100)";
 784                                 }
 785                                 else
 786                                 {
 787                                         sb_setmixer(devc,0x3c,0x1f);    /* Enable all inputs */
 788                                         sb_setmixer(devc,0x4c,0x1f);
 789                                         sb_setmixer(devc,0x22,mixer22); /* Restore 0x22 to original value */
 790                                         devc->submodel = SUBMDL_ALS007;
 791                                         if (hw_config->name == NULL)
 792                                                 hw_config->name = "Sound Blaster 16 (ALS-007)";
 793                                 }
 794                                 sb_setmixer(devc,0x30,mixer30);
 795                         }
 796                         else if (hw_config->name == NULL)
 797                                 hw_config->name = "Sound Blaster 16";
 798
 799                         if (hw_config->dma2 == -1)
 800                                 devc->dma16 = devc->dma8;
 801                         else if (hw_config->dma2 < 5 || hw_config->dma2 > 7)
 802                         {
 803                                 printk(KERN_WARNING  "SB16: Bad or missing 16 bit DMA channel\n");
 804                                 devc->dma16 = devc->dma8;
 805                         }
 806                         else
 807                                 devc->dma16 = hw_config->dma2;
 808
 809                         if(!sb16_set_dma_hw(devc)) {
 810                                 free_irq(devc->irq, devc);
 811                                 release_region(hw_config->io_base, 16);
 812                                 return 0;
 813                         }
 814
 815                         devc->caps |= SB_NO_MIDI;
 816         }
 817
 818         if (!(devc->caps & SB_NO_MIXER))
 819                 if (devc->major == 3 || devc->major == 4)
 820                         sb_mixer_init(devc, owner);
 821
 822         if (!(devc->caps & SB_NO_MIDI))
 823                 sb_dsp_midi_init(devc, owner);
 824
 825         if (hw_config->name == NULL)
 826                 hw_config->name = "Sound Blaster (8 BIT/MONO ONLY)";
 827
 828         sprintf(name, "%s (%d.%02d)", hw_config->name, devc->major, devc->minor);
 829         conf_printf(name, hw_config);
 830
 831         /*
 832          * Assuming that a sound card is Sound Blaster (compatible) is the most common
 833          * configuration error and the mother of all problems. Usually sound cards
 834          * emulate SB Pro but in addition they have a 16 bit native mode which should be
 835          * used in Unix. See Readme.cards for more information about configuring OSS/Free
 836          * properly.
 837          */
 838         if (devc->model <= MDL_SBPRO)
 839         {
 840                 if (devc->major == 3 && devc->minor != 1)       /* "True" SB Pro should have v3.1 (rare ones may have 3.2). */
 841                 {
 842                         printk(KERN_INFO "This sound card may not be fully Sound Blaster Pro compatible.\n");
 843                         printk(KERN_INFO "In many cases there is another way to configure OSS so that\n");
 844                         printk(KERN_INFO "it works properly with OSS (for example in 16 bit mode).\n");
 845                         printk(KERN_INFO "Please ignore this message if you _really_ have a SB Pro.\n");
 846                 }
 847                 else if (!sb_be_quiet && devc->model == MDL_SBPRO)
 848                 {
 849                         printk(KERN_INFO "SB DSP version is just %d.%02d which means that your card is\n", devc->major, devc->minor);
 850                         printk(KERN_INFO "several years old (8 bit only device) or alternatively the sound driver\n");
 851                         printk(KERN_INFO "is incorrectly configured.\n");
 852                 }
 853         }
 854         hw_config->card_subtype = devc->model;
 855         hw_config->slots[0]=devc->dev;
 856         last_devc = devc;       /* For SB MPU detection */
 857
 858         if (!(devc->caps & SB_NO_AUDIO) && devc->dma8 >= 0)
 859         {
 860                 if (sound_alloc_dma(devc->dma8, "SoundBlaster8"))
 861                 {
 862                         printk(KERN_WARNING "Sound Blaster: Can't allocate 8 bit DMA channel %d\n", devc->dma8);
 863                 }
 864                 if (devc->dma16 >= 0 && devc->dma16 != devc->dma8)
 865                 {
 866                         if (sound_alloc_dma(devc->dma16, "SoundBlaster16"))
 867                                 printk(KERN_WARNING "Sound Blaster:  can't allocate 16 bit DMA channel %d.\n", devc->dma16);
 868                 }
 869                 sb_audio_init(devc, name, owner);
 870                 hw_config->slots[0]=devc->dev;
 871         }
 872         else
 873         {
 874                 MDB(printk("Sound Blaster:  no audio devices found.\n"));
 875         }
 876         return 1;
 877 }
 878
 879 /* if (sbmpu) below we allow mpu401 to manage the midi devs
 880    otherwise we have to unload them. (Andrzej Krzysztofowicz) */
 881
 882 void sb_dsp_unload(struct address_info *hw_config, int sbmpu)
 883 {
 884         sb_devc *devc;
 885
 886         devc = audio_devs[hw_config->slots[0]]->devc;
 887
 888         if (devc && devc->base == hw_config->io_base)
 889         {
 890                 if ((devc->model & MDL_ESS) && devc->pcibase)
 891                         release_region(devc->pcibase, 8);
 892
 893                 release_region(devc->base, 16);
 894
 895                 if (!(devc->caps & SB_NO_AUDIO))
 896                 {
 897                         sound_free_dma(devc->dma8);
 898                         if (devc->dma16 >= 0)
 899                                 sound_free_dma(devc->dma16);
 900                 }
 901                 if (!(devc->caps & SB_NO_AUDIO && devc->caps & SB_NO_MIDI))
 902                 {
 903                         if (devc->irq > 0)
 904                                 free_irq(devc->irq, devc);
 905
 906                         sb_mixer_unload(devc);
 907                         /* We don't have to do this bit any more the UART401 is its own
 908                                 master  -- Krzysztof Halasa */
 909                         /* But we have to do it, if UART401 is not detected */
 910                         if (!sbmpu)
 911                                 sound_unload_mididev(devc->my_mididev);
 912                         sound_unload_audiodev(devc->dev);
 913                 }
 914                 kfree(devc);
 915         }
 916         else
 917                 release_region(hw_config->io_base, 16);
 918
 919         kfree(detected_devc);
 920 }
 921
 922 /*
 923  *      Mixer access routines
 924  *
 925  *      ES1887 modifications: some mixer registers reside in the
 926  *      range above 0xa0. These must be accessed in another way.
 927  */
 928
 929 void sb_setmixer(sb_devc * devc, unsigned int port, unsigned int value)
 930 {
 931         unsigned long flags;
 932
 933         if (devc->model == MDL_ESS) {
 934                 ess_setmixer (devc, port, value);
 935                 return;
 936         }
 937
 938         spin_lock_irqsave(&devc->lock, flags);
 939
 940         outb(((unsigned char) (port & 0xff)), MIXER_ADDR);
 941         udelay(20);
 942         outb(((unsigned char) (value & 0xff)), MIXER_DATA);
 943         udelay(20);
 944
 945         spin_unlock_irqrestore(&devc->lock, flags);
 946 }
 947
 948 unsigned int sb_getmixer(sb_devc * devc, unsigned int port)
 949 {
 950         unsigned int val;
 951         unsigned long flags;
 952
 953         if (devc->model == MDL_ESS) return ess_getmixer (devc, port);
 954
 955         spin_lock_irqsave(&devc->lock, flags);
 956
 957         outb(((unsigned char) (port & 0xff)), MIXER_ADDR);
 958         udelay(20);
 959         val = inb(MIXER_DATA);
 960         udelay(20);
 961
 962         spin_unlock_irqrestore(&devc->lock, flags);
 963
 964         return val;
 965 }
 966
 967 void sb_chgmixer
 968         (sb_devc * devc, unsigned int reg, unsigned int mask, unsigned int val)
 969 {
 970         int value;
 971
 972         value = sb_getmixer(devc, reg);
 973         value = (value & ~mask) | (val & mask);
 974         sb_setmixer(devc, reg, value);
 975 }
 976
 977 /*
 978  *      MPU401 MIDI initialization.
 979  */
 980
 981 static void smw_putmem(sb_devc * devc, int base, int addr, unsigned char val)
 982 {
 983         unsigned long flags;
 984
 985         spin_lock_irqsave(&jazz16_lock, flags);  /* NOT the SB card? */
 986
 987         outb((addr & 0xff), base + 1);  /* Low address bits */
 988         outb((addr >> 8), base + 2);    /* High address bits */
 989         outb((val), base);      /* Data */
 990
 991         spin_unlock_irqrestore(&jazz16_lock, flags);
 992 }
 993
 994 static unsigned char smw_getmem(sb_devc * devc, int base, int addr)
 995 {
 996         unsigned long flags;
 997         unsigned char val;
 998
 999         spin_lock_irqsave(&jazz16_lock, flags);  /* NOT the SB card? */
1000
1001         outb((addr & 0xff), base + 1);  /* Low address bits */
1002         outb((addr >> 8), base + 2);    /* High address bits */
1003         val = inb(base);        /* Data */
1004
1005         spin_unlock_irqrestore(&jazz16_lock, flags);
1006         return val;
1007 }
1008
1009 static int smw_midi_init(sb_devc * devc, struct address_info *hw_config)
1010 {
1011         int mpu_base = hw_config->io_base;
1012         int mp_base = mpu_base + 4;             /* Microcontroller base */
1013         int i;
1014         unsigned char control;
1015
1016
1017         /*
1018          *  Reset the microcontroller so that the RAM can be accessed
1019          */
1020
1021         control = inb(mpu_base + 7);
1022         outb((control | 3), mpu_base + 7);      /* Set last two bits to 1 (?) */
1023         outb(((control & 0xfe) | 2), mpu_base + 7);     /* xxxxxxx0 resets the mc */
1024
1025         mdelay(3);      /* Wait at least 1ms */
1026
1027         outb((control & 0xfc), mpu_base + 7);   /* xxxxxx00 enables RAM */
1028
1029         /*
1030          *  Detect microcontroller by probing the 8k RAM area
1031          */
1032         smw_putmem(devc, mp_base, 0, 0x00);
1033         smw_putmem(devc, mp_base, 1, 0xff);
1034         udelay(10);
1035
1036         if (smw_getmem(devc, mp_base, 0) != 0x00 || smw_getmem(devc, mp_base, 1) != 0xff)
1037         {
1038                 DDB(printk("SM Wave: No microcontroller RAM detected (%02x, %02x)\n", smw_getmem(devc, mp_base, 0), smw_getmem(devc, mp_base, 1)));
1039                 return 0;       /* No RAM */
1040         }
1041         /*
1042          *  There is RAM so assume it's really a SM Wave
1043          */
1044
1045         devc->model = MDL_SMW;
1046         smw_mixer_init(devc);
1047
1048 #ifdef MODULE
1049         if (!smw_ucode)
1050         {
1051                 smw_ucodeLen = mod_firmware_load("/etc/sound/midi0001.bin", (void *) &smw_ucode);
1052                 smw_free = smw_ucode;
1053         }
1054 #endif
1055         if (smw_ucodeLen > 0)
1056         {
1057                 if (smw_ucodeLen != 8192)
1058                 {
1059                         printk(KERN_ERR "SM Wave: Invalid microcode (MIDI0001.BIN) length\n");
1060                         return 1;
1061                 }
1062                 /*
1063                  *  Download microcode
1064                  */
1065
1066                 for (i = 0; i < 8192; i++)
1067                         smw_putmem(devc, mp_base, i, smw_ucode[i]);
1068
1069                 /*
1070                  *  Verify microcode
1071                  */
1072
1073                 for (i = 0; i < 8192; i++)
1074                         if (smw_getmem(devc, mp_base, i) != smw_ucode[i])
1075                         {
1076                                 printk(KERN_ERR "SM Wave: Microcode verification failed\n");
1077                                 return 0;
1078                         }
1079         }
1080         control = 0;
1081 #ifdef SMW_SCSI_IRQ
1082         /*
1083          * Set the SCSI interrupt (IRQ2/9, IRQ3 or IRQ10). The SCSI interrupt
1084          * is disabled by default.
1085          *
1086          * FIXME - make this a module option
1087          *
1088          * BTW the Zilog 5380 SCSI controller is located at MPU base + 0x10.
1089          */
1090         {
1091                 static unsigned char scsi_irq_bits[] = {
1092                         0, 0, 3, 1, 0, 0, 0, 0, 0, 3, 2, 0, 0, 0, 0, 0
1093                 };
1094                 control |= scsi_irq_bits[SMW_SCSI_IRQ] << 6;
1095         }
1096 #endif
1097
1098 #ifdef SMW_OPL4_ENABLE
1099         /*
1100          *  Make the OPL4 chip visible on the PC bus at 0x380.
1101          *
1102          *  There is no need to enable this feature since this driver
1103          *  doesn't support OPL4 yet. Also there is no RAM in SM Wave so
1104          *  enabling OPL4 is pretty useless.
1105          */
1106         control |= 0x10;        /* Uses IRQ12 if bit 0x20 == 0 */
1107         /* control |= 0x20;      Uncomment this if you want to use IRQ7 */
1108 #endif
1109         outb((control | 0x03), mpu_base + 7);   /* xxxxxx11 restarts */
1110         hw_config->name = "SoundMan Wave";
1111         return 1;
1112 }
1113
1114 static int init_Jazz16_midi(sb_devc * devc, struct address_info *hw_config)
1115 {
1116         int mpu_base = hw_config->io_base;
1117         int sb_base = devc->base;
1118         int irq = hw_config->irq;
1119
1120         unsigned char bits = 0;
1121         unsigned long flags;
1122
1123         if (irq < 0)
1124                 irq *= -1;
1125
1126         if (irq < 1 || irq > 15 ||
1127             jazz_irq_bits[irq] == 0)
1128         {
1129                 printk(KERN_ERR "Jazz16: Invalid MIDI interrupt (IRQ%d)\n", irq);
1130                 return 0;
1131         }
1132         switch (sb_base)
1133         {
1134                 case 0x220:
1135                         bits = 1;
1136                         break;
1137                 case 0x240:
1138                         bits = 2;
1139                         break;
1140                 case 0x260:
1141                         bits = 3;
1142                         break;
1143                 default:
1144                         return 0;
1145         }
1146         bits = jazz16_bits = bits << 5;
1147         switch (mpu_base)
1148         {
1149                 case 0x310:
1150                         bits |= 1;
1151                         break;
1152                 case 0x320:
1153                         bits |= 2;
1154                         break;
1155                 case 0x330:
1156                         bits |= 3;
1157                         break;
1158                 default:
1159                         printk(KERN_ERR "Jazz16: Invalid MIDI I/O port %x\n", mpu_base);
1160                         return 0;
1161         }
1162         /*
1163          *      Magic wake up sequence by writing to 0x201 (aka Joystick port)
1164          */
1165         spin_lock_irqsave(&jazz16_lock, flags);
1166         outb(0xAF, 0x201);
1167         outb(0x50, 0x201);
1168         outb(bits, 0x201);
1169         spin_unlock_irqrestore(&jazz16_lock, flags);
1170
1171         hw_config->name = "Jazz16";
1172         smw_midi_init(devc, hw_config);
1173
1174         if (!sb_dsp_command(devc, 0xfb))
1175                 return 0;
1176
1177         if (!sb_dsp_command(devc, jazz_dma_bits[devc->dma8] |
1178                             (jazz_dma_bits[devc->dma16] << 4)))
1179                 return 0;
1180
1181         if (!sb_dsp_command(devc, jazz_irq_bits[devc->irq] |
1182                             (jazz_irq_bits[irq] << 4)))
1183                 return 0;
1184
1185         return 1;
1186 }
1187
1188 int probe_sbmpu(struct address_info *hw_config, struct module *owner)
1189 {
1190         sb_devc *devc = last_devc;
1191         int ret;
1192
1193         if (last_devc == NULL)
1194                 return 0;
1195
1196         last_devc = NULL;
1197
1198         if (hw_config->io_base <= 0)
1199         {
1200                 /* The real vibra16 is fine about this, but we have to go
1201                    wipe up after Cyrix again */
1202
1203                 if(devc->model == MDL_SB16 && devc->minor >= 12)
1204                 {
1205                         unsigned char   bits = sb_getmixer(devc, 0x84) & ~0x06;
1206                         sb_setmixer(devc, 0x84, bits | 0x02);           /* Disable MPU */
1207                 }
1208                 return 0;
1209         }
1210
1211 #if defined(CONFIG_SOUND_MPU401)
1212         if (devc->model == MDL_ESS)
1213         {
1214                 struct resource *ports;
1215                 ports = request_region(hw_config->io_base, 2, "mpu401");
1216                 if (!ports) {
1217                         printk(KERN_ERR "sbmpu: I/O port conflict (%x)\n", hw_config->io_base);
1218                         return 0;
1219                 }
1220                 if (!ess_midi_init(devc, hw_config)) {
1221                         release_region(hw_config->io_base, 2);
1222                         return 0;
1223                 }
1224                 hw_config->name = "ESS1xxx MPU";
1225                 devc->midi_irq_cookie = NULL;
1226                 if (!probe_mpu401(hw_config, ports)) {
1227                         release_region(hw_config->io_base, 2);
1228                         return 0;
1229                 }
1230                 attach_mpu401(hw_config, owner);
1231                 if (last_sb->irq == -hw_config->irq)
1232                         last_sb->midi_irq_cookie =
1233                                 (void *)(long) hw_config->slots[1];
1234                 return 1;
1235         }
1236 #endif
1237
1238         switch (devc->model)
1239         {
1240                 case MDL_SB16:
1241                         if (hw_config->io_base != 0x300 && hw_config->io_base != 0x330)
1242                         {
1243                                 printk(KERN_ERR "SB16: Invalid MIDI port %x\n", hw_config->io_base);
1244                                 return 0;
1245                         }
1246                         hw_config->name = "Sound Blaster 16";
1247                         if (hw_config->irq < 3 || hw_config->irq == devc->irq)
1248                                 hw_config->irq = -devc->irq;
1249                         if (devc->minor > 12)           /* What is Vibra's version??? */
1250                                 sb16_set_mpu_port(devc, hw_config);
1251                         break;
1252
1253                 case MDL_JAZZ:
1254                         if (hw_config->irq < 3 || hw_config->irq == devc->irq)
1255                                 hw_config->irq = -devc->irq;
1256                         if (!init_Jazz16_midi(devc, hw_config))
1257                                 return 0;
1258                         break;
1259
1260                 case MDL_YMPCI:
1261                         hw_config->name = "Yamaha PCI Legacy";
1262                         printk("Yamaha PCI legacy UART401 check.\n");
1263                         break;
1264                 default:
1265                         return 0;
1266         }
1267
1268         ret = probe_uart401(hw_config, owner);
1269         if (ret)
1270                 last_sb->midi_irq_cookie=midi_devs[hw_config->slots[4]]->devc;
1271         return ret;
1272 }
1273
1274 void unload_sbmpu(struct address_info *hw_config)
1275 {
1276 #if defined(CONFIG_SOUND_MPU401)
1277         if (!strcmp (hw_config->name, "ESS1xxx MPU")) {
1278                 unload_mpu401(hw_config);
1279                 return;
1280         }
1281 #endif
1282         unload_uart401(hw_config);
1283 }
1284
1285 EXPORT_SYMBOL(sb_dsp_init);
1286 EXPORT_SYMBOL(sb_dsp_detect);
1287 EXPORT_SYMBOL(sb_dsp_unload);
1288 EXPORT_SYMBOL(sb_be_quiet);
1289 EXPORT_SYMBOL(probe_sbmpu);
1290 EXPORT_SYMBOL(unload_sbmpu);
1291 EXPORT_SYMBOL(smw_free);
1292 MODULE_LICENSE("GPL");