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/config.h>
   8 #include <linux/init.h>
   9 #include <linux/interrupt.h>
  10 #include <linux/module.h>
  11 #include <linux/spinlock.h>
  12 #include "sound_config.h"
  13
  14 #include "pas2.h"
  15 #include "sb.h"
  16
  17 static unsigned char dma_bits[] = {
  18         4, 1, 2, 3, 0, 5, 6, 7
  19 };
  20
  21 static unsigned char irq_bits[] = {
  22         0, 0, 1, 2, 3, 4, 5, 6, 0, 1, 7, 8, 9, 0, 10, 11
  23 };
  24
  25 static unsigned char sb_irq_bits[] = {
  26         0x00, 0x00, 0x08, 0x10, 0x00, 0x18, 0x00, 0x20,
  27         0x00, 0x08, 0x28, 0x30, 0x38, 0, 0
  28 };
  29
  30 static unsigned char sb_dma_bits[] = {
  31         0x00, 0x40, 0x80, 0xC0, 0, 0, 0, 0
  32 };
  33
  34 /*
  35  * The Address Translation code is used to convert I/O register addresses to
  36  * be relative to the given base -register
  37  */
  38
  39 int             pas_translate_code = 0;
  40 static int      pas_intr_mask;
  41 static int      pas_irq;
  42 static int      pas_sb_base;
  43 DEFINE_SPINLOCK(pas_lock);
  44 #ifndef CONFIG_PAS_JOYSTICK
  45 static int      joystick;
  46 #else
  47 static int      joystick = 1;
  48 #endif
  49 #ifdef SYMPHONY_PAS
  50 static int      symphony = 1;
  51 #else
  52 static int      symphony;
  53 #endif
  54 #ifdef BROKEN_BUS_CLOCK
  55 static int      broken_bus_clock = 1;
  56 #else
  57 static int      broken_bus_clock;
  58 #endif
  59
  60 static struct address_info cfg;
  61 static struct address_info cfg2;
  62
  63 char            pas_model = 0;
  64 static char    *pas_model_names[] = {
  65         "",
  66         "Pro AudioSpectrum+",
  67         "CDPC",
  68         "Pro AudioSpectrum 16",
  69         "Pro AudioSpectrum 16D"
  70 };
  71
  72 /*
  73  * pas_read() and pas_write() are equivalents of inb and outb
  74  * These routines perform the I/O address translation required
  75  * to support other than the default base address
  76  */
  77
  78 extern void     mix_write(unsigned char data, int ioaddr);
  79
  80 unsigned char pas_read(int ioaddr)
  81 {
  82         return inb(ioaddr + pas_translate_code);
  83 }
  84
  85 void pas_write(unsigned char data, int ioaddr)
  86 {
  87         outb((data), ioaddr + pas_translate_code);
  88 }
  89
  90 /******************* Begin of the Interrupt Handler ********************/
  91
  92 static irqreturn_t pasintr(int irq, void *dev_id, struct pt_regs *dummy)
  93 {
  94         int             status;
  95
  96         status = pas_read(0x0B89);
  97         pas_write(status, 0x0B89);      /* Clear interrupt */
  98
  99         if (status & 0x08)
 100         {
 101                   pas_pcm_interrupt(status, 1);
 102                   status &= ~0x08;
 103         }
 104         if (status & 0x10)
 105         {
 106                   pas_midi_interrupt();
 107                   status &= ~0x10;
 108         }
 109         return IRQ_HANDLED;
 110 }
 111
 112 int pas_set_intr(int mask)
 113 {
 114         if (!mask)
 115                 return 0;
 116
 117         pas_intr_mask |= mask;
 118
 119         pas_write(pas_intr_mask, 0x0B8B);
 120         return 0;
 121 }
 122
 123 int pas_remove_intr(int mask)
 124 {
 125         if (!mask)
 126                 return 0;
 127
 128         pas_intr_mask &= ~mask;
 129         pas_write(pas_intr_mask, 0x0B8B);
 130
 131         return 0;
 132 }
 133
 134 /******************* End of the Interrupt handler **********************/
 135
 136 /******************* Begin of the Initialization Code ******************/
 137
 138 static int __init config_pas_hw(struct address_info *hw_config)
 139 {
 140         char            ok = 1;
 141         unsigned        int_ptrs;       /* scsi/sound interrupt pointers */
 142
 143         pas_irq = hw_config->irq;
 144
 145         pas_write(0x00, 0x0B8B);
 146         pas_write(0x36, 0x138B);
 147         pas_write(0x36, 0x1388);
 148         pas_write(0, 0x1388);
 149         pas_write(0x74, 0x138B);
 150         pas_write(0x74, 0x1389);
 151         pas_write(0, 0x1389);
 152
 153         pas_write(0x80 | 0x40 | 0x20 | 1, 0x0B8A);
 154         pas_write(0x80 | 0x20 | 0x10 | 0x08 | 0x01, 0xF8A);
 155         pas_write(0x01 | 0x02 | 0x04 | 0x10     /*
 156                                                  * |
 157                                                  * 0x80
 158                                                  */ , 0xB88);
 159
 160         pas_write(0x80
 161                   | joystick?0x40:0
 162                   ,0xF388);
 163
 164         if (pas_irq < 0 || pas_irq > 15)
 165         {
 166                 printk(KERN_ERR "PAS16: Invalid IRQ %d", pas_irq);
 167                 hw_config->irq=-1;
 168                 ok = 0;
 169         }
 170         else
 171         {
 172                 int_ptrs = pas_read(0xF38A);
 173                 int_ptrs = (int_ptrs & 0xf0) | irq_bits[pas_irq];
 174                 pas_write(int_ptrs, 0xF38A);
 175                 if (!irq_bits[pas_irq])
 176                 {
 177                         printk(KERN_ERR "PAS16: Invalid IRQ %d", pas_irq);
 178                         hw_config->irq=-1;
 179                         ok = 0;
 180                 }
 181                 else
 182                 {
 183                         if (request_irq(pas_irq, pasintr, 0, "PAS16",hw_config) < 0) {
 184                                 printk(KERN_ERR "PAS16: Cannot allocate IRQ %d\n",pas_irq);
 185                                 hw_config->irq=-1;
 186                                 ok = 0;
 187                         }
 188                 }
 189         }
 190
 191         if (hw_config->dma < 0 || hw_config->dma > 7)
 192         {
 193                 printk(KERN_ERR "PAS16: Invalid DMA selection %d", hw_config->dma);
 194                 hw_config->dma=-1;
 195                 ok = 0;
 196         }
 197         else
 198         {
 199                 pas_write(dma_bits[hw_config->dma], 0xF389);
 200                 if (!dma_bits[hw_config->dma])
 201                 {
 202                         printk(KERN_ERR "PAS16: Invalid DMA selection %d", hw_config->dma);
 203                         hw_config->dma=-1;
 204                         ok = 0;
 205                 }
 206                 else
 207                 {
 208                         if (sound_alloc_dma(hw_config->dma, "PAS16"))
 209                         {
 210                                 printk(KERN_ERR "pas2_card.c: Can't allocate DMA channel\n");
 211                                 hw_config->dma=-1;
 212                                 ok = 0;
 213                         }
 214                 }
 215         }
 216
 217         /*
 218          * This fixes the timing problems of the PAS due to the Symphony chipset
 219          * as per Media Vision.  Only define this if your PAS doesn't work correctly.
 220          */
 221
 222         if(symphony)
 223         {
 224                 outb((0x05), 0xa8);
 225                 outb((0x60), 0xa9);
 226         }
 227
 228         if(broken_bus_clock)
 229                 pas_write(0x01 | 0x10 | 0x20 | 0x04, 0x8388);
 230         else
 231                 /*
 232                  * pas_write(0x01, 0x8388);
 233                  */
 234                 pas_write(0x01 | 0x10 | 0x20, 0x8388);
 235
 236         pas_write(0x18, 0x838A);        /* ??? */
 237         pas_write(0x20 | 0x01, 0x0B8A);         /* Mute off, filter = 17.897 kHz */
 238         pas_write(8, 0xBF8A);
 239
 240         mix_write(0x80 | 5, 0x078B);
 241         mix_write(5, 0x078B);
 242
 243         {
 244                 struct address_info *sb_config;
 245
 246                 sb_config = &cfg2;
 247                 if (sb_config->io_base)
 248                 {
 249                         unsigned char   irq_dma;
 250
 251                         /*
 252                          * Turn on Sound Blaster compatibility
 253                          * bit 1 = SB emulation
 254                          * bit 0 = MPU401 emulation (CDPC only :-( )
 255                          */
 256
 257                         pas_write(0x02, 0xF788);
 258
 259                         /*
 260                          * "Emulation address"
 261                          */
 262
 263                         pas_write((sb_config->io_base >> 4) & 0x0f, 0xF789);
 264                         pas_sb_base = sb_config->io_base;
 265
 266                         if (!sb_dma_bits[sb_config->dma])
 267                                 printk(KERN_ERR "PAS16 Warning: Invalid SB DMA %d\n\n", sb_config->dma);
 268
 269                         if (!sb_irq_bits[sb_config->irq])
 270                                 printk(KERN_ERR "PAS16 Warning: Invalid SB IRQ %d\n\n", sb_config->irq);
 271
 272                         irq_dma = sb_dma_bits[sb_config->dma] |
 273                                 sb_irq_bits[sb_config->irq];
 274
 275                         pas_write(irq_dma, 0xFB8A);
 276                 }
 277                 else
 278                         pas_write(0x00, 0xF788);
 279         }
 280
 281         if (!ok)
 282                 printk(KERN_WARNING "PAS16: Driver not enabled\n");
 283
 284         return ok;
 285 }
 286
 287 static int __init detect_pas_hw(struct address_info *hw_config)
 288 {
 289         unsigned char   board_id, foo;
 290
 291         /*
 292          * WARNING: Setting an option like W:1 or so that disables warm boot reset
 293          * of the card will screw up this detect code something fierce. Adding code
 294          * to handle this means possibly interfering with other cards on the bus if
 295          * you have something on base port 0x388. SO be forewarned.
 296          */
 297
 298         outb((0xBC), 0x9A01);   /* Activate first board */
 299         outb((hw_config->io_base >> 2), 0x9A01);        /* Set base address */
 300         pas_translate_code = hw_config->io_base - 0x388;
 301         pas_write(1, 0xBF88);   /* Select one wait states */
 302
 303         board_id = pas_read(0x0B8B);
 304
 305         if (board_id == 0xff)
 306                 return 0;
 307
 308         /*
 309          * We probably have a PAS-series board, now check for a PAS16-series board
 310          * by trying to change the board revision bits. PAS16-series hardware won't
 311          * let you do this - the bits are read-only.
 312          */
 313
 314         foo = board_id ^ 0xe0;
 315
 316         pas_write(foo, 0x0B8B);
 317         foo = pas_read(0x0B8B);
 318         pas_write(board_id, 0x0B8B);
 319
 320         if (board_id != foo)
 321                 return 0;
 322
 323         pas_model = pas_read(0xFF88);
 324
 325         return pas_model;
 326 }
 327
 328 static void __init attach_pas_card(struct address_info *hw_config)
 329 {
 330         pas_irq = hw_config->irq;
 331
 332         if (detect_pas_hw(hw_config))
 333         {
 334
 335                 if ((pas_model = pas_read(0xFF88)))
 336                 {
 337                         char            temp[100];
 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