release/src-rt-6.x/linux/linux-2.6/sound/oss/cs4232.c

   1 /*
   2  * Copyright (C) by Hannu Savolainen 1993-1997
   3  *
   4  *      cs4232.c
   5  *
   6  * The low level driver for Crystal CS4232 based cards. The CS4232 is
   7  * a PnP compatible chip which contains a CS4231A codec, SB emulation,
   8  * a MPU401 compatible MIDI port, joystick and synthesizer and IDE CD-ROM
   9  * interfaces. This is just a temporary driver until full PnP support
  10  * gets implemented. Just the WSS codec, FM synth and the MIDI ports are
  11  * supported. Other interfaces are left uninitialized.
  12  *
  13  * ifdef ...WAVEFRONT...
  14  *
  15  *   Support is provided for initializing the WaveFront synth
  16  *   interface as well, which is logical device #4. Note that if
  17  *   you have a Tropez+ card, you probably don't need to setup
  18  *   the CS4232-supported MIDI interface, since it corresponds to
  19  *   the internal 26-pin header that's hard to access. Using this
  20  *   requires an additional IRQ, a resource none too plentiful in
  21  *   this environment. Just don't set module parameters mpuio and
  22  *   mpuirq, and the MIDI port will be left uninitialized. You can
  23  *   still use the ICS2115 hosted MIDI interface which corresponds
  24  *   to the 9-pin D connector on the back of the card.
  25  *
  26  * endif  ...WAVEFRONT...
  27  *
  28  * Supported chips are:
  29  *      CS4232
  30  *      CS4236
  31  *      CS4236B
  32  *
  33  * Note: You will need a PnP config setup to initialise some CS4232 boards
  34  * anyway.
  35  *
  36  * Changes
  37  *      John Rood               Added Bose Sound System Support.
  38  *      Toshio Spoor
  39  *      Alan Cox                Modularisation, Basic cleanups.
  40  *      Paul Barton-Davis       Separated MPU configuration, added
  41  *                                       Tropez+ (WaveFront) support
  42  *      Christoph Hellwig       Adapted to module_init/module_exit,
  43  *                                      simple cleanups
  44  *      Arnaldo C. de Melo      got rid of attach_uart401
  45  *      Bartlomiej Zolnierkiewicz
  46  *                              Added some __init/__initdata/__exit
  47  *      Marcus Meissner         Added ISA PnP support.
  48  */
  49
  50 #include <linux/pnp.h>
  51 #include <linux/module.h>
  52 #include <linux/init.h>
  53
  54 #include "sound_config.h"
  55
  56 #include "ad1848.h"
  57 #include "mpu401.h"
  58
  59 #define KEY_PORT        0x279   /* Same as LPT1 status port */
  60 #define CSN_NUM         0x99    /* Just a random number */
  61 #define INDEX_ADDRESS   0x00    /* (R0) Index Address Register */
  62 #define INDEX_DATA      0x01    /* (R1) Indexed Data Register */
  63 #define PIN_CONTROL     0x0a    /* (I10) Pin Control */
  64 #define ENABLE_PINS     0xc0    /* XCTRL0/XCTRL1 enable */
  65
  66 static void CS_OUT(unsigned char a)
  67 {
  68         outb(a, KEY_PORT);
  69 }
  70
  71 #define CS_OUT2(a, b)           {CS_OUT(a);CS_OUT(b);}
  72 #define CS_OUT3(a, b, c)        {CS_OUT(a);CS_OUT(b);CS_OUT(c);}
  73
  74 static int __initdata bss       = 0;
  75 static int mpu_base, mpu_irq;
  76 static int synth_base, synth_irq;
  77 static int mpu_detected;
  78
  79 static int probe_cs4232_mpu(struct address_info *hw_config)
  80 {
  81         /*
  82          *      Just write down the config values.
  83          */
  84
  85         mpu_base = hw_config->io_base;
  86         mpu_irq = hw_config->irq;
  87
  88         return 1;
  89 }
  90
  91 static unsigned char crystal_key[] =    /* A 32 byte magic key sequence */
  92 {
  93         0x96, 0x35, 0x9a, 0xcd, 0xe6, 0xf3, 0x79, 0xbc,
  94         0x5e, 0xaf, 0x57, 0x2b, 0x15, 0x8a, 0xc5, 0xe2,
  95         0xf1, 0xf8, 0x7c, 0x3e, 0x9f, 0x4f, 0x27, 0x13,
  96         0x09, 0x84, 0x42, 0xa1, 0xd0, 0x68, 0x34, 0x1a
  97 };
  98
  99 static void sleep(unsigned howlong)
 100 {
 101         current->state = TASK_INTERRUPTIBLE;
 102         schedule_timeout(howlong);
 103 }
 104
 105 static void enable_xctrl(int baseio)
 106 {
 107         unsigned char regd;
 108
 109         /*
 110          * Some IBM Aptiva's have the Bose Sound System. By default
 111          * the Bose Amplifier is disabled. The amplifier will be
 112          * activated, by setting the XCTRL0 and XCTRL1 bits.
 113          * Volume of the monitor bose speakers/woofer, can then
 114          * be set by changing the PCM volume.
 115          *
 116          */
 117
 118         printk("cs4232: enabling Bose Sound System Amplifier.\n");
 119
 120         /* Switch to Pin Control Address */
 121         regd = inb(baseio + INDEX_ADDRESS) & 0xe0;
 122         outb(((unsigned char) (PIN_CONTROL | regd)), baseio + INDEX_ADDRESS );
 123
 124         /* Activate the XCTRL0 and XCTRL1 Pins */
 125         regd = inb(baseio + INDEX_DATA);
 126         outb(((unsigned char) (ENABLE_PINS | regd)), baseio + INDEX_DATA );
 127 }
 128
 129 static int __init probe_cs4232(struct address_info *hw_config, int isapnp_configured)
 130 {
 131         int i, n;
 132         int base = hw_config->io_base, irq = hw_config->irq;
 133         int dma1 = hw_config->dma, dma2 = hw_config->dma2;
 134         struct resource *ports;
 135
 136         if (base == -1 || irq == -1 || dma1 == -1) {
 137                 printk(KERN_ERR "cs4232: dma, irq and io must be set.\n");
 138                 return 0;
 139         }
 140
 141         /*
 142          * Verify that the I/O port range is free.
 143          */
 144
 145         ports = request_region(base, 4, "ad1848");
 146         if (!ports) {
 147                 printk(KERN_ERR "cs4232.c: I/O port 0x%03x not free\n", base);
 148                 return 0;
 149         }
 150         if (ad1848_detect(ports, NULL, hw_config->osp)) {
 151                 goto got_it;    /* The card is already active */
 152         }
 153         if (isapnp_configured) {
 154                 printk(KERN_ERR "cs4232.c: ISA PnP configured, but not detected?\n");
 155                 goto fail;
 156         }
 157
 158         /*
 159          * This version of the driver doesn't use the PnP method when configuring
 160          * the card but a simplified method defined by Crystal. This means that
 161          * just one CS4232 compatible device can exist on the system. Also this
 162          * method conflicts with possible PnP support in the OS. For this reason
 163          * driver is just a temporary kludge.
 164          *
 165          * Also the Cirrus/Crystal method doesn't always work. Try ISA PnP first ;)
 166          */
 167
 168         /*
 169          * Repeat initialization few times since it doesn't always succeed in
 170          * first time.
 171          */
 172
 173         for (n = 0; n < 4; n++)
 174         {
 175                 /*
 176                  *      Wake up the card by sending a 32 byte Crystal key to the key port.
 177                  */
 178
 179                 for (i = 0; i < 32; i++)
 180                         CS_OUT(crystal_key[i]);
 181
 182                 sleep(HZ / 10);
 183
 184                 /*
 185                  *      Now set the CSN (Card Select Number).
 186                  */
 187
 188                 CS_OUT2(0x06, CSN_NUM);
 189
 190                 /*
 191                  *      Then set some config bytes. First logical device 0
 192                  */
 193
 194                 CS_OUT2(0x15, 0x00);    /* Select logical device 0 (WSS/SB/FM) */
 195                 CS_OUT3(0x47, (base >> 8) & 0xff, base & 0xff); /* WSS base */
 196
 197                 if (!request_region(0x388, 4, "FM"))    /* Not free */
 198                         CS_OUT3(0x48, 0x00, 0x00)       /* FM base off */
 199                 else {
 200                         release_region(0x388, 4);
 201                         CS_OUT3(0x48, 0x03, 0x88);      /* FM base 0x388 */
 202                 }
 203
 204                 CS_OUT3(0x42, 0x00, 0x00);      /* SB base off */
 205                 CS_OUT2(0x22, irq);             /* SB+WSS IRQ */
 206                 CS_OUT2(0x2a, dma1);            /* SB+WSS DMA */
 207
 208                 if (dma2 != -1)
 209                         CS_OUT2(0x25, dma2)     /* WSS DMA2 */
 210                 else
 211                         CS_OUT2(0x25, 4);       /* No WSS DMA2 */
 212
 213                 CS_OUT2(0x33, 0x01);    /* Activate logical dev 0 */
 214
 215                 sleep(HZ / 10);
 216
 217                 /*
 218                  * Initialize logical device 3 (MPU)
 219                  */
 220
 221                 if (mpu_base != 0 && mpu_irq != 0)
 222                 {
 223                         CS_OUT2(0x15, 0x03);    /* Select logical device 3 (MPU) */
 224                         CS_OUT3(0x47, (mpu_base >> 8) & 0xff, mpu_base & 0xff); /* MPU base */
 225                         CS_OUT2(0x22, mpu_irq); /* MPU IRQ */
 226                         CS_OUT2(0x33, 0x01);    /* Activate logical dev 3 */
 227                 }
 228
 229                 if(synth_base != 0)
 230                 {
 231                     CS_OUT2 (0x15, 0x04);               /* logical device 4 (WaveFront) */
 232                     CS_OUT3 (0x47, (synth_base >> 8) & 0xff,
 233                              synth_base & 0xff);        /* base */
 234                     CS_OUT2 (0x22, synth_irq);          /* IRQ */
 235                     CS_OUT2 (0x33, 0x01);               /* Activate logical dev 4 */
 236                 }
 237
 238                 /*
 239                  * Finally activate the chip
 240                  */
 241
 242                 CS_OUT(0x79);
 243
 244                 sleep(HZ / 5);
 245
 246                 /*
 247                  * Then try to detect the codec part of the chip
 248                  */
 249
 250                 if (ad1848_detect(ports, NULL, hw_config->osp))
 251                         goto got_it;
 252
 253                 sleep(HZ);
 254         }
 255 fail:
 256         release_region(base, 4);
 257         return 0;
 258
 259 got_it:
 260         if (dma2 == -1)
 261                 dma2 = dma1;
 262
 263         hw_config->slots[0] = ad1848_init("Crystal audio controller", ports,
 264                                           irq,
 265                                           dma1,         /* Playback DMA */
 266                                           dma2,         /* Capture DMA */
 267                                           0,
 268                                           hw_config->osp,
 269                                           THIS_MODULE);
 270
 271         if (hw_config->slots[0] != -1 &&
 272                 audio_devs[hw_config->slots[0]]->mixer_dev!=-1)
 273         {
 274                 /* Assume the mixer map is as suggested in the CS4232 databook */
 275                 AD1848_REROUTE(SOUND_MIXER_LINE1, SOUND_MIXER_LINE);
 276                 AD1848_REROUTE(SOUND_MIXER_LINE2, SOUND_MIXER_CD);
 277                 AD1848_REROUTE(SOUND_MIXER_LINE3, SOUND_MIXER_SYNTH);           /* FM synth */
 278         }
 279         if (mpu_base != 0 && mpu_irq != 0)
 280         {
 281                 static struct address_info hw_config2 = {
 282                         0
 283                 };              /* Ensure it's initialized */
 284
 285                 hw_config2.io_base = mpu_base;
 286                 hw_config2.irq = mpu_irq;
 287                 hw_config2.dma = -1;
 288                 hw_config2.dma2 = -1;
 289                 hw_config2.always_detect = 0;
 290                 hw_config2.name = NULL;
 291                 hw_config2.driver_use_1 = 0;
 292                 hw_config2.driver_use_2 = 0;
 293                 hw_config2.card_subtype = 0;
 294
 295                 if (probe_uart401(&hw_config2, THIS_MODULE))
 296                 {
 297                         mpu_detected = 1;
 298                 }
 299                 else
 300                 {
 301                         mpu_base = mpu_irq = 0;
 302                 }
 303                 hw_config->slots[1] = hw_config2.slots[1];
 304         }
 305
 306         if (bss)
 307                 enable_xctrl(base);
 308
 309         return 1;
 310 }
 311
 312 static void __devexit unload_cs4232(struct address_info *hw_config)
 313 {
 314         int base = hw_config->io_base, irq = hw_config->irq;
 315         int dma1 = hw_config->dma, dma2 = hw_config->dma2;
 316
 317         if (dma2 == -1)
 318                 dma2 = dma1;
 319
 320         ad1848_unload(base,
 321                       irq,
 322                       dma1,     /* Playback DMA */
 323                       dma2,     /* Capture DMA */
 324                       0);
 325
 326         sound_unload_audiodev(hw_config->slots[0]);
 327         if (mpu_base != 0 && mpu_irq != 0 && mpu_detected)
 328         {
 329                 static struct address_info hw_config2 =
 330                 {
 331                         0
 332                 };              /* Ensure it's initialized */
 333
 334                 hw_config2.io_base = mpu_base;
 335                 hw_config2.irq = mpu_irq;
 336                 hw_config2.dma = -1;
 337                 hw_config2.dma2 = -1;
 338                 hw_config2.always_detect = 0;
 339                 hw_config2.name = NULL;
 340                 hw_config2.driver_use_1 = 0;
 341                 hw_config2.driver_use_2 = 0;
 342                 hw_config2.card_subtype = 0;
 343                 hw_config2.slots[1] = hw_config->slots[1];
 344
 345                 unload_uart401(&hw_config2);
 346         }
 347 }
 348
 349 static struct address_info cfg;
 350 static struct address_info cfg_mpu;
 351
 352 static int __initdata io        = -1;
 353 static int __initdata irq       = -1;
 354 static int __initdata dma       = -1;
 355 static int __initdata dma2      = -1;
 356 static int __initdata mpuio     = -1;
 357 static int __initdata mpuirq    = -1;
 358 static int __initdata synthio   = -1;
 359 static int __initdata synthirq  = -1;
 360 static int __initdata isapnp    = 1;
 361
 362 static unsigned int cs4232_devices;
 363
 364 MODULE_DESCRIPTION("CS4232 based soundcard driver");
 365 MODULE_AUTHOR("Hannu Savolainen, Paul Barton-Davis");
 366 MODULE_LICENSE("GPL");
 367
 368 module_param(io, int, 0);
 369 MODULE_PARM_DESC(io,"base I/O port for AD1848");
 370 module_param(irq, int, 0);
 371 MODULE_PARM_DESC(irq,"IRQ for AD1848 chip");
 372 module_param(dma, int, 0);
 373 MODULE_PARM_DESC(dma,"8 bit DMA for AD1848 chip");
 374 module_param(dma2, int, 0);
 375 MODULE_PARM_DESC(dma2,"16 bit DMA for AD1848 chip");
 376 module_param(mpuio, int, 0);
 377 MODULE_PARM_DESC(mpuio,"MPU 401 base address");
 378 module_param(mpuirq, int, 0);
 379 MODULE_PARM_DESC(mpuirq,"MPU 401 IRQ");
 380 module_param(synthio, int, 0);
 381 MODULE_PARM_DESC(synthio,"Maui WaveTable base I/O port");
 382 module_param(synthirq, int, 0);
 383 MODULE_PARM_DESC(synthirq,"Maui WaveTable IRQ");
 384 module_param(isapnp, bool, 0);
 385 MODULE_PARM_DESC(isapnp,"Enable ISAPnP probing (default 1)");
 386 module_param(bss, bool, 0);
 387 MODULE_PARM_DESC(bss,"Enable Bose Sound System Support (default 0)");
 388
 389 /*
 390  *      Install a CS4232 based card. Need to have ad1848 and mpu401
 391  *      loaded ready.
 392  */
 393
 394 /* All cs4232 based cards have the main ad1848 card either as CSC0000 or
 395  * CSC0100. */
 396 static const struct pnp_device_id cs4232_pnp_table[] = {
 397         { .id = "CSC0100", .driver_data = 0 },
 398         { .id = "CSC0000", .driver_data = 0 },
 399         /* Guillemot Turtlebeach something appears to be cs4232 compatible
 400          * (untested) */
 401         { .id = "GIM0100", .driver_data = 0 },
 402         { .id = ""}
 403 };
 404
 405 MODULE_DEVICE_TABLE(pnp, cs4232_pnp_table);
 406
 407 static int __init cs4232_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
 408 {
 409         struct address_info *isapnpcfg;
 410
 411         isapnpcfg = kmalloc(sizeof(*isapnpcfg),GFP_KERNEL);
 412         if (!isapnpcfg)
 413                 return -ENOMEM;
 414
 415         isapnpcfg->irq          = pnp_irq(dev, 0);
 416         isapnpcfg->dma          = pnp_dma(dev, 0);
 417         isapnpcfg->dma2         = pnp_dma(dev, 1);
 418         isapnpcfg->io_base      = pnp_port_start(dev, 0);
 419         if (probe_cs4232(isapnpcfg,TRUE) == 0) {
 420                 printk(KERN_ERR "cs4232: ISA PnP card found, but not detected?\n");
 421                 kfree(isapnpcfg);
 422                 return -ENODEV;
 423         }
 424         pnp_set_drvdata(dev,isapnpcfg);
 425         cs4232_devices++;
 426         return 0;
 427 }
 428
 429 static void __devexit cs4232_pnp_remove(struct pnp_dev *dev)
 430 {
 431         struct address_info *cfg = pnp_get_drvdata(dev);
 432         if (cfg) {
 433                 unload_cs4232(cfg);
 434                 kfree(cfg);
 435         }
 436 }
 437
 438 static struct pnp_driver cs4232_driver = {
 439         .name           = "cs4232",
 440         .id_table       = cs4232_pnp_table,
 441         .probe          = cs4232_pnp_probe,
 442         .remove         = __devexit_p(cs4232_pnp_remove),
 443 };
 444
 445 static int __init init_cs4232(void)
 446 {
 447 #ifdef CONFIG_SOUND_WAVEFRONT_MODULE
 448         if(synthio == -1)
 449                 printk(KERN_INFO "cs4232: set synthio and synthirq to use the wavefront facilities.\n");
 450         else {
 451                 synth_base = synthio;
 452                 synth_irq =  synthirq;
 453         }
 454 #else
 455         if(synthio != -1)
 456                 printk(KERN_WARNING "cs4232: wavefront support not enabled in this driver.\n");
 457 #endif
 458         cfg.irq = -1;
 459
 460         if (isapnp) {
 461                 pnp_register_driver(&cs4232_driver);
 462                 if (cs4232_devices)
 463                         return 0;
 464         }
 465
 466         if(io==-1||irq==-1||dma==-1)
 467         {
 468                 printk(KERN_ERR "cs4232: Must set io, irq and dma.\n");
 469                 return -ENODEV;
 470         }
 471
 472         cfg.io_base = io;
 473         cfg.irq = irq;
 474         cfg.dma = dma;
 475         cfg.dma2 = dma2;
 476
 477         cfg_mpu.io_base = -1;
 478         cfg_mpu.irq = -1;
 479
 480         if (mpuio != -1 && mpuirq != -1) {
 481                 cfg_mpu.io_base = mpuio;
 482                 cfg_mpu.irq = mpuirq;
 483                 probe_cs4232_mpu(&cfg_mpu); /* Bug always returns 0 not OK -- AC */
 484         }
 485
 486         if (probe_cs4232(&cfg,FALSE) == 0)
 487                 return -ENODEV;
 488
 489         return 0;
 490 }
 491
 492 static void __exit cleanup_cs4232(void)
 493 {
 494         pnp_unregister_driver(&cs4232_driver);
 495         if (cfg.irq != -1)
 496                 unload_cs4232(&cfg); /* Unloads global MPU as well, if needed */
 497 }
 498
 499 module_init(init_cs4232);
 500 module_exit(cleanup_cs4232);
 501
 502 #ifndef MODULE
 503 static int __init setup_cs4232(char *str)
 504 {
 505         /* io, irq, dma, dma2 mpuio, mpuirq*/
 506         int ints[7];
 507
 508         /* If we have isapnp cards, no need for options */
 509         pnp_register_driver(&cs4232_driver);
 510         if (cs4232_devices)
 511                 return 1;
 512
 513         str = get_options(str, ARRAY_SIZE(ints), ints);
 514
 515         io      = ints[1];
 516         irq     = ints[2];
 517         dma     = ints[3];
 518         dma2    = ints[4];
 519         mpuio   = ints[5];
 520         mpuirq  = ints[6];
 521
 522         return 1;
 523 }
 524
 525 __setup("cs4232=", setup_cs4232);
 526 #endif