sound/oss/pas2_card.c

   1 /*
   2  * sound/pas2_card.c
   3  *
   4  * Detection routine for the Pro Audio Spectrum cards.
   5  */
   6
   7 #include <linux/init.h>
   8 #include <linux/interrupt.h>
   9 #include <linux/module.h>
  10 #include <linux/spinlock.h>
  11 #include "sound_config.h"
  12
  13 #include "pas2.h"
  14 #include "sb.h"
  15
  16 static unsigned char dma_bits[] = {
  17         4, 1, 2, 3, 0, 5, 6, 7
  18 };
  19
  20 static unsigned char irq_bits[] = {
  21         0, 0, 1, 2, 3, 4, 5, 6, 0, 1, 7, 8, 9, 0, 10, 11
  22 };
  23
  24 static unsigned char sb_irq_bits[] = {
  25         0x00, 0x00, 0x08, 0x10, 0x00, 0x18, 0x00, 0x20,
  26         0x00, 0x08, 0x28, 0x30, 0x38, 0, 0
  27 };
  28
  29 static unsigned char sb_dma_bits[] = {
  30         0x00, 0x40, 0x80, 0xC0, 0, 0, 0, 0
  31 };
  32
  33 /*
  34  * The Address Translation code is used to convert I/O register addresses to
  35  * be relative to the given base -register
  36  */
  37
  38 int             pas_translate_code = 0;
  39 static int      pas_intr_mask;
  40 static int      pas_irq;
  41 static int      pas_sb_base;
  42 DEFINE_SPINLOCK(pas_lock);
  43 #ifndef CONFIG_PAS_JOYSTICK
  44 static int      joystick;
  45 #else
  46 static int      joystick = 1;
  47 #endif
  48 #ifdef SYMPHONY_PAS
  49 static int      symphony = 1;
  50 #else
  51 static int      symphony;
  52 #endif
  53 #ifdef BROKEN_BUS_CLOCK
  54 static int      broken_bus_clock = 1;
  55 #else
  56 static int      broken_bus_clock;
  57 #endif
  58
  59 static struct address_info cfg;
  60 static struct address_info cfg2;
  61
  62 char            pas_model = 0;
  63 static char    *pas_model_names[] = {
  64         "",
  65         "Pro AudioSpectrum+",
  66         "CDPC",
  67         "Pro AudioSpectrum 16",
  68         "Pro AudioSpectrum 16D"
  69 };
  70
  71 /*
  72  * pas_read() and pas_write() are equivalents of inb and outb
  73  * These routines perform the I/O address translation required
  74  * to support other than the default base address
  75  */
  76
  77 extern void     mix_write(unsigned char data, int ioaddr);
  78
  79 unsigned char pas_read(int ioaddr)
  80 {
  81         return inb(ioaddr + pas_translate_code);
  82 }
  83
  84 void pas_write(unsigned char data, int ioaddr)
  85 {
  86         outb((data), ioaddr + pas_translate_code);
  87 }
  88
  89 /******************* Begin of the Interrupt Handler ********************/
  90
  91 static irqreturn_t pasintr(int irq, void *dev_id, struct pt_regs *dummy)
  92 {
  93         int             status;
  94
  95         status = pas_read(0x0B89);
  96         pas_write(status, 0x0B89);      /* Clear interrupt */
  97
  98         if (status & 0x08)
  99         {
 100                   pas_pcm_interrupt(status, 1);
 101                   status &= ~0x08;
 102         }
 103         if (status & 0x10)
 104         {
 105                   pas_midi_interrupt();
 106                   status &= ~0x10;
 107         }
 108         return IRQ_HANDLED;
 109 }
 110
 111 int pas_set_intr(int mask)
 112 {
 113         if (!mask)
 114                 return 0;
 115
 116         pas_intr_mask |= mask;
 117
 118         pas_write(pas_intr_mask, 0x0B8B);
 119         return 0;
 120 }
 121
 122 int pas_remove_intr(int mask)
 123 {
 124         if (!mask)
 125                 return 0;
 126
 127         pas_intr_mask &= ~mask;
 128         pas_write(pas_intr_mask, 0x0B8B);
 129
 130         return 0;
 131 }
 132
 133 /******************* End of the Interrupt handler **********************/
 134
 135 /******************* Begin of the Initialization Code ******************/
 136
 137 static int __init config_pas_hw(struct address_info *hw_config)
 138 {
 139         char            ok = 1;
 140         unsigned        int_ptrs;       /* scsi/sound interrupt pointers */
 141
 142         pas_irq = hw_config->irq;
 143
 144         pas_write(0x00, 0x0B8B);
 145         pas_write(0x36, 0x138B);
 146         pas_write(0x36, 0x1388);
 147         pas_write(0, 0x1388);
 148         pas_write(0x74, 0x138B);
 149         pas_write(0x74, 0x1389);
 150         pas_write(0, 0x1389);
 151
 152         pas_write(0x80 | 0x40 | 0x20 | 1, 0x0B8A);
 153         pas_write(0x80 | 0x20 | 0x10 | 0x08 | 0x01, 0xF8A);
 154         pas_write(0x01 | 0x02 | 0x04 | 0x10     /*
 155                                                  * |
 156                                                  * 0x80
 157                                                  */ , 0xB88);
 158
 159         pas_write(0x80
 160                   | joystick?0x40:0
 161                   ,0xF388);
 162
 163         if (pas_irq < 0 || pas_irq > 15)
 164         {
 165                 printk(KERN_ERR "PAS16: Invalid IRQ %d", pas_irq);
 166                 hw_config->irq=-1;
 167                 ok = 0;
 168         }
 169         else
 170         {
 171                 int_ptrs = pas_read(0xF38A);
 172                 int_ptrs = (int_ptrs & 0xf0) | irq_bits[pas_irq];
 173                 pas_write(int_ptrs, 0xF38A);
 174                 if (!irq_bits[pas_irq])
 175                 {
 176                         printk(KERN_ERR "PAS16: Invalid IRQ %d", pas_irq);
 177                         hw_config->irq=-1;
 178                         ok = 0;
 179                 }
 180                 else
 181                 {
 182                         if (request_irq(pas_irq, pasintr, 0, "PAS16",hw_config) < 0) {
 183                                 printk(KERN_ERR "PAS16: Cannot allocate IRQ %d\n",pas_irq);
 184                                 hw_config->irq=-1;
 185                                 ok = 0;
 186                         }
 187                 }
 188         }
 189
 190         if (hw_config->dma < 0 || hw_config->dma > 7)
 191         {
 192                 printk(KERN_ERR "PAS16: Invalid DMA selection %d", hw_config->dma);
 193                 hw_config->dma=-1;
 194                 ok = 0;
 195         }
 196         else
 197         {
 198                 pas_write(dma_bits[hw_config->dma], 0xF389);
 199                 if (!dma_bits[hw_config->dma])
 200                 {
 201                         printk(KERN_ERR "PAS16: Invalid DMA selection %d", hw_config->dma);
 202                         hw_config->dma=-1;
 203                         ok = 0;
 204                 }
 205                 else
 206                 {
 207                         if (sound_alloc_dma(hw_config->dma, "PAS16"))
 208                         {
 209                                 printk(KERN_ERR "pas2_card.c: Can't allocate DMA channel\n");
 210                                 hw_config->dma=-1;
 211                                 ok = 0;
 212                         }
 213                 }
 214         }
 215
 216         /*
 217          * This fixes the timing problems of the PAS due to the Symphony chipset
 218          * as per Media Vision.  Only define this if your PAS doesn't work correctly.
 219          */
 220
 221         if(symphony)
 222         {
 223                 outb((0x05), 0xa8);
 224                 outb((0x60), 0xa9);
 225         }
 226
 227         if(broken_bus_clock)
 228                 pas_write(0x01 | 0x10 | 0x20 | 0x04, 0x8388);
 229         else
 230                 /*
 231                  * pas_write(0x01, 0x8388);
 232                  */
 233                 pas_write(0x01 | 0x10 | 0x20, 0x8388);
 234
 235         pas_write(0x18, 0x838A);        /* ??? */
 236         pas_write(0x20 | 0x01, 0x0B8A);         /* Mute off, filter = 17.897 kHz */
 237         pas_write(8, 0xBF8A);
 238
 239         mix_write(0x80 | 5, 0x078B);
 240         mix_write(5, 0x078B);
 241
 242         {
 243                 struct address_info *sb_config;
 244
 245                 sb_config = &cfg2;
 246                 if (sb_config->io_base)
 247                 {
 248                         unsigned char   irq_dma;
 249
 250                         /*
 251                          * Turn on Sound Blaster compatibility
 252                          * bit 1 = SB emulation
 253                          * bit 0 = MPU401 emulation (CDPC only :-( )
 254                          */
 255
 256                         pas_write(0x02, 0xF788);
 257
 258                         /*
 259                          * "Emulation address"
 260                          */
 261
 262                         pas_write((sb_config->io_base >> 4) & 0x0f, 0xF789);
 263                         pas_sb_base = sb_config->io_base;
 264
 265                         if (!sb_dma_bits[sb_config->dma])
 266                                 printk(KERN_ERR "PAS16 Warning: Invalid SB DMA %d\n\n", sb_config->dma);
 267
 268                         if (!sb_irq_bits[sb_config->irq])
 269                                 printk(KERN_ERR "PAS16 Warning: Invalid SB IRQ %d\n\n", sb_config->irq);
 270
 271                         irq_dma = sb_dma_bits[sb_config->dma] |
 272                                 sb_irq_bits[sb_config->irq];
 273
 274                         pas_write(irq_dma, 0xFB8A);
 275                 }
 276                 else
 277                         pas_write(0x00, 0xF788);
 278         }
 279
 280         if (!ok)
 281                 printk(KERN_WARNING "PAS16: Driver not enabled\n");
 282
 283         return ok;
 284 }
 285
 286 static int __init detect_pas_hw(struct address_info *hw_config)
 287 {
 288         unsigned char   board_id, foo;
 289
 290         /*
 291          * WARNING: Setting an option like W:1 or so that disables warm boot reset
 292          * of the card will screw up this detect code something fierce. Adding code
 293          * to handle this means possibly interfering with other cards on the bus if
 294          * you have something on base port 0x388. SO be forewarned.
 295          */
 296
 297         outb((0xBC), 0x9A01);   /* Activate first board */
 298         outb((hw_config->io_base >> 2), 0x9A01);        /* Set base address */
 299         pas_translate_code = hw_config->io_base - 0x388;
 300         pas_write(1, 0xBF88);   /* Select one wait states */
 301
 302         board_id = pas_read(0x0B8B);
 303
 304         if (board_id == 0xff)
 305                 return 0;
 306
 307         /*
 308          * We probably have a PAS-series board, now check for a PAS16-series board
 309          * by trying to change the board revision bits. PAS16-series hardware won't
 310          * let you do this - the bits are read-only.
 311          */
 312
 313         foo = board_id ^ 0xe0;
 314
 315         pas_write(foo, 0x0B8B);
 316         foo = pas_read(0x0B8B);
 317         pas_write(board_id, 0x0B8B);
 318
 319         if (board_id != foo)
 320                 return 0;
 321
 322         pas_model = pas_read(0xFF88);
 323
 324         return pas_model;
 325 }
 326
 327 static void __init attach_pas_card(struct address_info *hw_config)
 328 {
 329         pas_irq = hw_config->irq;
 330
 331         if (detect_pas_hw(hw_config))
 332         {
 333
 334                 if ((pas_model = pas_read(0xFF88)))
 335                 {
 336                         char            temp[100];
 337
 338                         sprintf(temp,
 339                             "%s rev %d", pas_model_names[(int) pas_model],
 340                                     pas_read(0x2789));
 341                         conf_printf(temp, hw_config);
 342                 }
 343                 if (config_pas_hw(hw_config))
 344                 {
 345                         pas_pcm_init(hw_config);
 346                         pas_midi_init();
 347                         pas_init_mixer();
 348                 }
 349         }
 350 }
 351
 352 static inline int __init probe_pas(struct address_info *hw_config)
 353 {
 354         return detect_pas_hw(hw_config);
 355 }
 356
 357 static void __exit unload_pas(struct address_info *hw_config)
 358 {
 359         extern int pas_audiodev;
 360         extern int pas2_mididev;
 361
 362         if (hw_config->dma>0)
 363                 sound_free_dma(hw_config->dma);
 364         if (hw_config->irq>0)
 365                 free_irq(hw_config->irq, hw_config);
 366
 367         if(pas_audiodev!=-1)
 368                 sound_unload_mixerdev(audio_devs[pas_audiodev]->mixer_dev);
 369         if(pas2_mididev!=-1)
 370                 sound_unload_mididev(pas2_mididev);
 371         if(pas_audiodev!=-1)
 372                 sound_unload_audiodev(pas_audiodev);
 373 }
 374
 375 static int __initdata io        = -1;
 376 static int __initdata irq       = -1;
 377 static int __initdata dma       = -1;
 378 static int __initdata dma16     = -1;   /* Set this for modules that need it */
 379
 380 static int __initdata sb_io     = 0;
 381 static int __initdata sb_irq    = -1;
 382 static int __initdata sb_dma    = -1;
 383 static int __initdata sb_dma16  = -1;
 384
 385 module_param(io, int, 0);
 386 module_param(irq, int, 0);
 387 module_param(dma, int, 0);
 388 module_param(dma16, int, 0);
 389
 390 module_param(sb_io, int, 0);
 391 module_param(sb_irq, int, 0);
 392 module_param(sb_dma, int, 0);
 393 module_param(sb_dma16, int, 0);
 394
 395 module_param(joystick, bool, 0);
 396 module_param(symphony, bool, 0);
 397 module_param(broken_bus_clock, bool, 0);
 398
 399 MODULE_LICENSE("GPL");
 400
 401 static int __init init_pas2(void)
 402 {
 403         printk(KERN_INFO "Pro Audio Spectrum driver Copyright (C) by Hannu Savolainen 1993-1996\n");
 404
 405         cfg.io_base = io;
 406         cfg.irq = irq;
 407         cfg.dma = dma;
 408         cfg.dma2 = dma16;
 409
 410         cfg2.io_base = sb_io;
 411         cfg2.irq = sb_irq;
 412         cfg2.dma = sb_dma;
 413         cfg2.dma2 = sb_dma16;
 414
 415         if (cfg.io_base == -1 || cfg.dma == -1 || cfg.irq == -1) {
 416                 printk(KERN_INFO "I/O, IRQ, DMA and type are mandatory\n");
 417                 return -EINVAL;
 418         }
 419
 420         if (!probe_pas(&cfg))
 421                 return -ENODEV;
 422         attach_pas_card(&cfg);
 423
 424         return 0;
 425 }
 426
 427 static void __exit cleanup_pas2(void)
 428 {
 429         unload_pas(&cfg);
 430 }
 431
 432 module_init(init_pas2);
 433 module_exit(cleanup_pas2);
 434
 435 #ifndef MODULE
 436 static int __init setup_pas2(char *str)
 437 {
 438         /* io, irq, dma, dma2, sb_io, sb_irq, sb_dma, sb_dma2 */
 439         int ints[9];
 440
 441         str = get_options(str, ARRAY_SIZE(ints), ints);
 442
 443         io      = ints[1];
 444         irq     = ints[2];
 445         dma     = ints[3];
 446         dma16   = ints[4];
 447
 448         sb_io   = ints[5];
 449         sb_irq  = ints[6];
 450         sb_dma  = ints[7];
 451         sb_dma16 = ints[8];
 452
 453         return 1;
 454 }
 455
 456 __setup("pas2=", setup_pas2);
 457 #endif