sound/oss/pas2_card.c

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