linux/sound/oss/trix.c
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   1/*
   2 * sound/oss/trix.c
   3 *
   4 * Low level driver for the MediaTrix AudioTrix Pro
   5 * (MT-0002-PC Control Chip)
   6 *
   7 *
   8 * Copyright (C) by Hannu Savolainen 1993-1997
   9 *
  10 * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
  11 * Version 2 (June 1991). See the "COPYING" file distributed with this software
  12 * for more info.
  13 *
  14 * Changes
  15 *      Alan Cox                Modularisation, cleanup.
  16 *      Christoph Hellwig       Adapted to module_init/module_exit
  17 *      Arnaldo C. de Melo      Got rid of attach_uart401
  18 */
  19 
  20#include <linux/init.h>
  21#include <linux/module.h>
  22
  23#include "sound_config.h"
  24#include "sb.h"
  25#include "sound_firmware.h"
  26
  27#include "ad1848.h"
  28#include "mpu401.h"
  29
  30#include "trix_boot.h"
  31
  32static int mpu;
  33
  34static bool joystick;
  35
  36static unsigned char trix_read(int addr)
  37{
  38        outb(((unsigned char) addr), 0x390);    /* MT-0002-PC ASIC address */
  39        return inb(0x391);      /* MT-0002-PC ASIC data */
  40}
  41
  42static void trix_write(int addr, int data)
  43{
  44        outb(((unsigned char) addr), 0x390);    /* MT-0002-PC ASIC address */
  45        outb(((unsigned char) data), 0x391);    /* MT-0002-PC ASIC data */
  46}
  47
  48static void download_boot(int base)
  49{
  50        int i = 0, n = trix_boot_len;
  51
  52        if (trix_boot_len == 0)
  53                return;
  54
  55        trix_write(0xf8, 0x00); /* ??????? */
  56        outb((0x01), base + 6); /* Clear the internal data pointer */
  57        outb((0x00), base + 6); /* Restart */
  58
  59        /*
  60           *  Write the boot code to the RAM upload/download register.
  61           *  Each write increments the internal data pointer.
  62         */
  63        outb((0x01), base + 6); /* Clear the internal data pointer */
  64        outb((0x1A), 0x390);    /* Select RAM download/upload port */
  65
  66        for (i = 0; i < n; i++)
  67                outb((trix_boot[i]), 0x391);
  68        for (i = n; i < 10016; i++)     /* Clear up to first 16 bytes of data RAM */
  69                outb((0x00), 0x391);
  70        outb((0x00), base + 6); /* Reset */
  71        outb((0x50), 0x390);    /* ?????? */
  72
  73}
  74
  75static int trix_set_wss_port(struct address_info *hw_config)
  76{
  77        unsigned char   addr_bits;
  78
  79        if (trix_read(0x15) != 0x71)    /* No ASIC signature */
  80        {
  81                MDB(printk(KERN_ERR "No AudioTrix ASIC signature found\n"));
  82                return 0;
  83        }
  84
  85        /*
  86         * Reset some registers.
  87         */
  88
  89        trix_write(0x13, 0);
  90        trix_write(0x14, 0);
  91
  92        /*
  93         * Configure the ASIC to place the codec to the proper I/O location
  94         */
  95
  96        switch (hw_config->io_base)
  97        {
  98                case 0x530:
  99                        addr_bits = 0;
 100                        break;
 101                case 0x604:
 102                        addr_bits = 1;
 103                        break;
 104                case 0xE80:
 105                        addr_bits = 2;
 106                        break;
 107                case 0xF40:
 108                        addr_bits = 3;
 109                        break;
 110                default:
 111                        return 0;
 112        }
 113
 114        trix_write(0x19, (trix_read(0x19) & 0x03) | addr_bits);
 115        return 1;
 116}
 117
 118/*
 119 *    Probe and attach routines for the Windows Sound System mode of
 120 *      AudioTrix Pro
 121 */
 122
 123static int __init init_trix_wss(struct address_info *hw_config)
 124{
 125        static unsigned char dma_bits[4] = {
 126                1, 2, 0, 3
 127        };
 128        struct resource *ports;
 129        int config_port = hw_config->io_base + 0;
 130        int dma1 = hw_config->dma, dma2 = hw_config->dma2;
 131        int old_num_mixers = num_mixers;
 132        u8 config, bits;
 133        int ret;
 134 
 135        switch(hw_config->irq) {
 136        case 7:
 137                bits = 8;
 138                break;
 139        case 9:
 140                bits = 0x10;
 141                break;
 142        case 10:
 143                bits = 0x18;
 144                break;
 145        case 11:
 146                bits = 0x20;
 147                break;
 148        default:
 149                printk(KERN_ERR "AudioTrix: Bad WSS IRQ %d\n", hw_config->irq);
 150                return 0;
 151        }
 152
 153        switch (dma1) {
 154        case 0:
 155        case 1:
 156        case 3:
 157                break;
 158        default:
 159                printk(KERN_ERR "AudioTrix: Bad WSS DMA %d\n", dma1);
 160                return 0;
 161        }
 162
 163        switch (dma2) {
 164        case -1:
 165        case 0:
 166        case 1:
 167        case 3:
 168                break;
 169        default:
 170                printk(KERN_ERR "AudioTrix: Bad capture DMA %d\n", dma2);
 171                return 0;
 172        }
 173
 174        /*
 175         * Check if the IO port returns valid signature. The original MS Sound
 176         * system returns 0x04 while some cards (AudioTrix Pro for example)
 177         * return 0x00.
 178         */
 179        ports = request_region(hw_config->io_base + 4, 4, "ad1848");
 180        if (!ports) {
 181                printk(KERN_ERR "AudioTrix: MSS I/O port conflict (%x)\n", hw_config->io_base);
 182                return 0;
 183        }
 184
 185        if (!request_region(hw_config->io_base, 4, "MSS config")) {
 186                printk(KERN_ERR "AudioTrix: MSS I/O port conflict (%x)\n", hw_config->io_base);
 187                release_region(hw_config->io_base + 4, 4);
 188                return 0;
 189        }
 190
 191        if (!trix_set_wss_port(hw_config))
 192                goto fail;
 193
 194        config = inb(hw_config->io_base + 3);
 195
 196        if ((config & 0x3f) != 0x00)
 197        {
 198                MDB(printk(KERN_ERR "No MSS signature detected on port 0x%x\n", hw_config->io_base));
 199                goto fail;
 200        }
 201
 202        /*
 203         * Check that DMA0 is not in use with a 8 bit board.
 204         */
 205
 206        if (dma1 == 0 && config & 0x80)
 207        {
 208                printk(KERN_ERR "AudioTrix: Can't use DMA0 with a 8 bit card slot\n");
 209                goto fail;
 210        }
 211        if (hw_config->irq > 9 && config & 0x80)
 212        {
 213                printk(KERN_ERR "AudioTrix: Can't use IRQ%d with a 8 bit card slot\n", hw_config->irq);
 214                goto fail;
 215        }
 216
 217        ret = ad1848_detect(ports, NULL, hw_config->osp);
 218        if (!ret)
 219                goto fail;
 220
 221        if (joystick==1)
 222                trix_write(0x15, 0x80);
 223
 224        /*
 225         * Set the IRQ and DMA addresses.
 226         */
 227
 228        outb((bits | 0x40), config_port);
 229
 230        if (dma2 == -1 || dma2 == dma1)
 231        {
 232                  bits |= dma_bits[dma1];
 233                  dma2 = dma1;
 234        }
 235        else
 236        {
 237                unsigned char tmp;
 238
 239                tmp = trix_read(0x13) & ~30;
 240                trix_write(0x13, tmp | 0x80 | (dma1 << 4));
 241
 242                tmp = trix_read(0x14) & ~30;
 243                trix_write(0x14, tmp | 0x80 | (dma2 << 4));
 244        }
 245
 246        outb((bits), config_port);      /* Write IRQ+DMA setup */
 247
 248        hw_config->slots[0] = ad1848_init("AudioTrix Pro", ports,
 249                                          hw_config->irq,
 250                                          dma1,
 251                                          dma2,
 252                                          0,
 253                                          hw_config->osp,
 254                                          THIS_MODULE);
 255
 256        if (num_mixers > old_num_mixers)        /* Mixer got installed */
 257        {
 258                AD1848_REROUTE(SOUND_MIXER_LINE1, SOUND_MIXER_LINE);    /* Line in */
 259                AD1848_REROUTE(SOUND_MIXER_LINE2, SOUND_MIXER_CD);
 260                AD1848_REROUTE(SOUND_MIXER_LINE3, SOUND_MIXER_SYNTH);           /* OPL4 */
 261                AD1848_REROUTE(SOUND_MIXER_SPEAKER, SOUND_MIXER_ALTPCM);        /* SB */
 262        }
 263        return 1;
 264
 265fail:
 266        release_region(hw_config->io_base, 4);
 267        release_region(hw_config->io_base + 4, 4);
 268        return 0;
 269}
 270
 271static int __init probe_trix_sb(struct address_info *hw_config)
 272{
 273
 274        int tmp;
 275        unsigned char conf;
 276        extern int sb_be_quiet;
 277        int old_quiet;
 278        static signed char irq_translate[] = {
 279                -1, -1, -1, 0, 1, 2, -1, 3
 280        };
 281
 282        if (trix_boot_len == 0)
 283                return 0;       /* No boot code -> no fun */
 284
 285        if ((hw_config->io_base & 0xffffff8f) != 0x200)
 286                return 0;
 287
 288        tmp = hw_config->irq;
 289        if (tmp > 7)
 290                return 0;
 291        if (irq_translate[tmp] == -1)
 292                return 0;
 293
 294        tmp = hw_config->dma;
 295        if (tmp != 1 && tmp != 3)
 296                return 0;
 297
 298        if (!request_region(hw_config->io_base, 16, "soundblaster")) {
 299                printk(KERN_ERR "AudioTrix: SB I/O port conflict (%x)\n", hw_config->io_base);
 300                return 0;
 301        }
 302
 303        conf = 0x84;            /* DMA and IRQ enable */
 304        conf |= hw_config->io_base & 0x70;      /* I/O address bits */
 305        conf |= irq_translate[hw_config->irq];
 306        if (hw_config->dma == 3)
 307                conf |= 0x08;
 308        trix_write(0x1b, conf);
 309
 310        download_boot(hw_config->io_base);
 311
 312        hw_config->name = "AudioTrix SB";
 313        if (!sb_dsp_detect(hw_config, 0, 0, NULL)) {
 314                release_region(hw_config->io_base, 16);
 315                return 0;
 316        }
 317
 318        hw_config->driver_use_1 = SB_NO_MIDI | SB_NO_MIXER | SB_NO_RECORDING;
 319
 320        /* Prevent false alarms */
 321        old_quiet = sb_be_quiet;
 322        sb_be_quiet = 1;
 323
 324        sb_dsp_init(hw_config, THIS_MODULE);
 325
 326        sb_be_quiet = old_quiet;
 327        return 1;
 328}
 329
 330static int __init probe_trix_mpu(struct address_info *hw_config)
 331{
 332        unsigned char conf;
 333        static int irq_bits[] = {
 334                -1, -1, -1, 1, 2, 3, -1, 4, -1, 5
 335        };
 336
 337        if (hw_config->irq > 9)
 338        {
 339                printk(KERN_ERR "AudioTrix: Bad MPU IRQ %d\n", hw_config->irq);
 340                return 0;
 341        }
 342        if (irq_bits[hw_config->irq] == -1)
 343        {
 344                printk(KERN_ERR "AudioTrix: Bad MPU IRQ %d\n", hw_config->irq);
 345                return 0;
 346        }
 347        switch (hw_config->io_base)
 348        {
 349                case 0x330:
 350                        conf = 0x00;
 351                        break;
 352                case 0x370:
 353                        conf = 0x04;
 354                        break;
 355                case 0x3b0:
 356                        conf = 0x08;
 357                        break;
 358                case 0x3f0:
 359                        conf = 0x0c;
 360                        break;
 361                default:
 362                        return 0;       /* Invalid port */
 363        }
 364
 365        conf |= irq_bits[hw_config->irq] << 4;
 366        trix_write(0x19, (trix_read(0x19) & 0x83) | conf);
 367        hw_config->name = "AudioTrix Pro";
 368        return probe_uart401(hw_config, THIS_MODULE);
 369}
 370
 371static void __exit unload_trix_wss(struct address_info *hw_config)
 372{
 373        int dma2 = hw_config->dma2;
 374
 375        if (dma2 == -1)
 376                dma2 = hw_config->dma;
 377
 378        release_region(0x390, 2);
 379        release_region(hw_config->io_base, 4);
 380
 381        ad1848_unload(hw_config->io_base + 4,
 382                      hw_config->irq,
 383                      hw_config->dma,
 384                      dma2,
 385                      0);
 386        sound_unload_audiodev(hw_config->slots[0]);
 387}
 388
 389static inline void __exit unload_trix_mpu(struct address_info *hw_config)
 390{
 391        unload_uart401(hw_config);
 392}
 393
 394static inline void __exit unload_trix_sb(struct address_info *hw_config)
 395{
 396        sb_dsp_unload(hw_config, mpu);
 397}
 398
 399static struct address_info cfg;
 400static struct address_info cfg2;
 401static struct address_info cfg_mpu;
 402
 403static int sb;
 404static int fw_load;
 405
 406static int __initdata io        = -1;
 407static int __initdata irq       = -1;
 408static int __initdata dma       = -1;
 409static int __initdata dma2      = -1;   /* Set this for modules that need it */
 410static int __initdata sb_io     = -1;
 411static int __initdata sb_dma    = -1;
 412static int __initdata sb_irq    = -1;
 413static int __initdata mpu_io    = -1;
 414static int __initdata mpu_irq   = -1;
 415
 416module_param(io, int, 0);
 417module_param(irq, int, 0);
 418module_param(dma, int, 0);
 419module_param(dma2, int, 0);
 420module_param(sb_io, int, 0);
 421module_param(sb_dma, int, 0);
 422module_param(sb_irq, int, 0);
 423module_param(mpu_io, int, 0);
 424module_param(mpu_irq, int, 0);
 425module_param(joystick, bool, 0);
 426
 427static int __init init_trix(void)
 428{
 429        printk(KERN_INFO "MediaTrix audio driver Copyright (C) by Hannu Savolainen 1993-1996\n");
 430
 431        cfg.io_base = io;
 432        cfg.irq = irq;
 433        cfg.dma = dma;
 434        cfg.dma2 = dma2;
 435
 436        cfg2.io_base = sb_io;
 437        cfg2.irq = sb_irq;
 438        cfg2.dma = sb_dma;
 439
 440        cfg_mpu.io_base = mpu_io;
 441        cfg_mpu.irq = mpu_irq;
 442
 443        if (cfg.io_base == -1 || cfg.dma == -1 || cfg.irq == -1) {
 444                printk(KERN_INFO "I/O, IRQ, DMA and type are mandatory\n");
 445                return -EINVAL;
 446        }
 447
 448        if (cfg2.io_base != -1 && (cfg2.irq == -1 || cfg2.dma == -1)) {
 449                printk(KERN_INFO "CONFIG_SB_IRQ and CONFIG_SB_DMA must be specified if SB_IO is set.\n");
 450                return -EINVAL;
 451        }
 452        if (cfg_mpu.io_base != -1 && cfg_mpu.irq == -1) {
 453                printk(KERN_INFO "CONFIG_MPU_IRQ must be specified if MPU_IO is set.\n");
 454                return -EINVAL;
 455        }
 456        if (!trix_boot)
 457        {
 458                fw_load = 1;
 459                trix_boot_len = mod_firmware_load("/etc/sound/trxpro.bin",
 460                                                    (char **) &trix_boot);
 461        }
 462
 463        if (!request_region(0x390, 2, "AudioTrix")) {
 464                printk(KERN_ERR "AudioTrix: Config port I/O conflict\n");
 465                return -ENODEV;
 466        }
 467
 468        if (!init_trix_wss(&cfg)) {
 469                release_region(0x390, 2);
 470                return -ENODEV;
 471        }
 472
 473        /*
 474         *    We must attach in the right order to get the firmware
 475         *      loaded up in time.
 476         */
 477
 478        if (cfg2.io_base != -1) {
 479                sb = probe_trix_sb(&cfg2);
 480        }
 481        
 482        if (cfg_mpu.io_base != -1)
 483                mpu = probe_trix_mpu(&cfg_mpu);
 484
 485        return 0;
 486}
 487
 488static void __exit cleanup_trix(void)
 489{
 490        if (fw_load && trix_boot)
 491                vfree(trix_boot);
 492        if (sb)
 493                unload_trix_sb(&cfg2);
 494        if (mpu)
 495                unload_trix_mpu(&cfg_mpu);
 496        unload_trix_wss(&cfg);
 497}
 498
 499module_init(init_trix);
 500module_exit(cleanup_trix);
 501
 502#ifndef MODULE
 503static int __init setup_trix (char *str)
 504{
 505        /* io, irq, dma, dma2, sb_io, sb_irq, sb_dma, mpu_io, mpu_irq */
 506        int ints[9];
 507        
 508        str = get_options(str, ARRAY_SIZE(ints), ints);
 509
 510        io      = ints[1];
 511        irq     = ints[2];
 512        dma     = ints[3];
 513        dma2    = ints[4];
 514        sb_io   = ints[5];
 515        sb_irq  = ints[6];
 516        sb_dma  = ints[6];
 517        mpu_io  = ints[7];
 518        mpu_irq = ints[8];
 519
 520        return 1;
 521}
 522
 523__setup("trix=", setup_trix);
 524#endif
 525MODULE_LICENSE("GPL");
 526
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