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   1 /*
   2  * sound/oss/sscape.c
   3  *
   4  * Low level driver for Ensoniq SoundScape
   5  *
   6  *
   7  * Copyright (C) by Hannu Savolainen 1993-1997
   8  *
   9  * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
  10  * Version 2 (June 1991). See the "COPYING" file distributed with this software
  11  * for more info.
  12  *
  13  *
  14  * Thomas Sailer        : ioctl code reworked (vmalloc/vfree removed)
  15  * Sergey Smitienko     : ensoniq p'n'p support
  16  * Christoph Hellwig    : adapted to module_init/module_exit
  17  * Bartlomiej Zolnierkiewicz : added __init to attach_sscape()
  18  * Chris Rankin         : Specify that this module owns the coprocessor
  19  * Arnaldo C. de Melo   : added missing restore_flags in sscape_pnp_upload_file
  20  */
  21
  22 #include <linux/init.h>
  23 #include <linux/module.h>
  24
  25 #include "sound_config.h"
  26 #include "sound_firmware.h"
  27
  28 #include <linux/types.h>
  29 #include <linux/errno.h>
  30 #include <linux/signal.h>
  31 #include <linux/fcntl.h>
  32 #include <linux/ctype.h>
  33 #include <linux/stddef.h>
  34 #include <linux/kmod.h>
  35 #include <asm/dma.h>
  36 #include <asm/io.h>
  37 #include <linux/wait.h>
  38 #include <linux/slab.h>
  39 #include <linux/ioport.h>
  40 #include <linux/delay.h>
  41 #include <linux/proc_fs.h>
  42 #include <linux/mm.h>
  43 #include <linux/spinlock.h>
  44
  45 #include "coproc.h"
  46
  47 #include "ad1848.h"
  48 #include "mpu401.h"
  49
  50 /*
  51  *    I/O ports
  52  */
  53 #define MIDI_DATA       0
  54 #define MIDI_CTRL       1
  55 #define HOST_CTRL       2
  56 #define TX_READY        0x02
  57 #define RX_READY        0x01
  58 #define HOST_DATA       3
  59 #define ODIE_ADDR       4
  60 #define ODIE_DATA       5
  61
  62 /*
  63  *    Indirect registers
  64  */
  65
  66 #define GA_INTSTAT_REG  0
  67 #define GA_INTENA_REG   1
  68 #define GA_DMAA_REG     2
  69 #define GA_DMAB_REG     3
  70 #define GA_INTCFG_REG   4
  71 #define GA_DMACFG_REG   5
  72 #define GA_CDCFG_REG    6
  73 #define GA_SMCFGA_REG   7
  74 #define GA_SMCFGB_REG   8
  75 #define GA_HMCTL_REG    9
  76
  77 /*
  78  * DMA channel identifiers (A and B)
  79  */
  80
  81 #define SSCAPE_DMA_A    0
  82 #define SSCAPE_DMA_B    1
  83
  84 #define PORT(name)      (devc->base+name)
  85
  86 /*
  87  * Host commands recognized by the OBP microcode
  88  */
  89
  90 #define CMD_GEN_HOST_ACK        0x80
  91 #define CMD_GEN_MPU_ACK         0x81
  92 #define CMD_GET_BOARD_TYPE      0x82
  93 #define CMD_SET_CONTROL         0x88    /* Old firmware only */
  94 #define CMD_GET_CONTROL         0x89    /* Old firmware only */
  95 #define CTL_MASTER_VOL          0
  96 #define CTL_MIC_MODE            2
  97 #define CTL_SYNTH_VOL           4
  98 #define CTL_WAVE_VOL            7
  99 #define CMD_SET_EXTMIDI         0x8a
 100 #define CMD_GET_EXTMIDI         0x8b
 101 #define CMD_SET_MT32            0x8c
 102 #define CMD_GET_MT32            0x8d
 103
 104 #define CMD_ACK                 0x80
 105
 106 #define IC_ODIE                 1
 107 #define IC_OPUS                 2
 108
 109 typedef struct sscape_info
 110 {
 111         int     base, irq, dma;
 112
 113         int     codec, codec_irq;       /* required to setup pnp cards*/
 114         int     codec_type;
 115         int     ic_type;
 116         char*   raw_buf;
 117         unsigned long   raw_buf_phys;
 118         int     buffsize;               /* -------------------------- */
 119         spinlock_t lock;
 120         int     ok;     /* Properly detected */
 121         int     failed;
 122         int     dma_allocated;
 123         int     codec_audiodev;
 124         int     opened;
 125         int     *osp;
 126         int     my_audiodev;
 127 } sscape_info;
 128
 129 static struct sscape_info adev_info = {
 130         0
 131 };
 132
 133 static struct sscape_info *devc = &adev_info;
 134 static int sscape_mididev = -1;
 135
 136 /* Some older cards have assigned interrupt bits differently than new ones */
 137 static char valid_interrupts_old[] = {
 138         9, 7, 5, 15
 139 };
 140
 141 static char valid_interrupts_new[] = {
 142         9, 5, 7, 10
 143 };
 144
 145 static char *valid_interrupts = valid_interrupts_new;
 146
 147 /*
 148  *      See the bottom of the driver. This can be set by spea =0/1.
 149  */
 150
 151 #ifdef REVEAL_SPEA
 152 static char old_hardware = 1;
 153 #else
 154 static char old_hardware;
 155 #endif
 156
 157 static void sleep(unsigned howlong)
 158 {
 159         current->state = TASK_INTERRUPTIBLE;
 160         schedule_timeout(howlong);
 161 }
 162
 163 static unsigned char sscape_read(struct sscape_info *devc, int reg)
 164 {
 165         unsigned long flags;
 166         unsigned char val;
 167
 168         spin_lock_irqsave(&devc->lock,flags);
 169         outb(reg, PORT(ODIE_ADDR));
 170         val = inb(PORT(ODIE_DATA));
 171         spin_unlock_irqrestore(&devc->lock,flags);
 172         return val;
 173 }
 174
 175 static void __sscape_write(int reg, int data)
 176 {
 177         outb(reg, PORT(ODIE_ADDR));
 178         outb(data, PORT(ODIE_DATA));
 179 }
 180
 181 static void sscape_write(struct sscape_info *devc, int reg, int data)
 182 {
 183         unsigned long flags;
 184
 185         spin_lock_irqsave(&devc->lock,flags);
 186         __sscape_write(reg, data);
 187         spin_unlock_irqrestore(&devc->lock,flags);
 188 }
 189
 190 static unsigned char sscape_pnp_read_codec(sscape_info* devc, unsigned char reg)
 191 {
 192         unsigned char res;
 193         unsigned long flags;
 194
 195         spin_lock_irqsave(&devc->lock,flags);
 196         outb( reg, devc -> codec);
 197         res = inb (devc -> codec + 1);
 198         spin_unlock_irqrestore(&devc->lock,flags);
 199         return res;
 200
 201 }
 202
 203 static void sscape_pnp_write_codec(sscape_info* devc, unsigned char reg, unsigned char data)
 204 {
 205         unsigned long flags;
 206
 207         spin_lock_irqsave(&devc->lock,flags);
 208         outb( reg, devc -> codec);
 209         outb( data, devc -> codec + 1);
 210         spin_unlock_irqrestore(&devc->lock,flags);
 211 }
 212
 213 static void host_open(struct sscape_info *devc)
 214 {
 215         outb((0x00), PORT(HOST_CTRL));  /* Put the board to the host mode */
 216 }
 217
 218 static void host_close(struct sscape_info *devc)
 219 {
 220         outb((0x03), PORT(HOST_CTRL));  /* Put the board to the MIDI mode */
 221 }
 222
 223 static int host_write(struct sscape_info *devc, unsigned char *data, int count)
 224 {
 225         unsigned long flags;
 226         int i, timeout_val;
 227
 228         spin_lock_irqsave(&devc->lock,flags);
 229         /*
 230          * Send the command and data bytes
 231          */
 232
 233         for (i = 0; i < count; i++)
 234         {
 235                 for (timeout_val = 10000; timeout_val > 0; timeout_val--)
 236                         if (inb(PORT(HOST_CTRL)) & TX_READY)
 237                                 break;
 238
 239                 if (timeout_val <= 0)
 240                 {
 241                                 spin_unlock_irqrestore(&devc->lock,flags);
 242                             return 0;
 243                 }
 244                 outb(data[i], PORT(HOST_DATA));
 245         }
 246         spin_unlock_irqrestore(&devc->lock,flags);
 247         return 1;
 248 }
 249
 250 static int host_read(struct sscape_info *devc)
 251 {
 252         unsigned long flags;
 253         int timeout_val;
 254         unsigned char data;
 255
 256         spin_lock_irqsave(&devc->lock,flags);
 257         /*
 258          * Read a byte
 259          */
 260
 261         for (timeout_val = 10000; timeout_val > 0; timeout_val--)
 262                 if (inb(PORT(HOST_CTRL)) & RX_READY)
 263                         break;
 264
 265         if (timeout_val <= 0)
 266         {
 267                 spin_unlock_irqrestore(&devc->lock,flags);
 268                 return -1;
 269         }
 270         data = inb(PORT(HOST_DATA));
 271         spin_unlock_irqrestore(&devc->lock,flags);
 272         return data;
 273 }
 274
 275 #if 0 /* unused */
 276 static int host_command1(struct sscape_info *devc, int cmd)
 277 {
 278         unsigned char buf[10];
 279         buf[0] = (unsigned char) (cmd & 0xff);
 280         return host_write(devc, buf, 1);
 281 }
 282 #endif /* unused */
 283
 284
 285 static int host_command2(struct sscape_info *devc, int cmd, int parm1)
 286 {
 287         unsigned char buf[10];
 288
 289         buf[0] = (unsigned char) (cmd & 0xff);
 290         buf[1] = (unsigned char) (parm1 & 0xff);
 291
 292         return host_write(devc, buf, 2);
 293 }
 294
 295 static int host_command3(struct sscape_info *devc, int cmd, int parm1, int parm2)
 296 {
 297         unsigned char buf[10];
 298
 299         buf[0] = (unsigned char) (cmd & 0xff);
 300         buf[1] = (unsigned char) (parm1 & 0xff);
 301         buf[2] = (unsigned char) (parm2 & 0xff);
 302         return host_write(devc, buf, 3);
 303 }
 304
 305 static void set_mt32(struct sscape_info *devc, int value)
 306 {
 307         host_open(devc);
 308         host_command2(devc, CMD_SET_MT32, value ? 1 : 0);
 309         if (host_read(devc) != CMD_ACK)
 310         {
 311                 /* printk( "SNDSCAPE: Setting MT32 mode failed\n"); */
 312         }
 313         host_close(devc);
 314 }
 315
 316 static void set_control(struct sscape_info *devc, int ctrl, int value)
 317 {
 318         host_open(devc);
 319         host_command3(devc, CMD_SET_CONTROL, ctrl, value);
 320         if (host_read(devc) != CMD_ACK)
 321         {
 322                 /* printk( "SNDSCAPE: Setting control (%d) failed\n",  ctrl); */
 323         }
 324         host_close(devc);
 325 }
 326
 327 static void do_dma(struct sscape_info *devc, int dma_chan, unsigned long buf, int blk_size, int mode)
 328 {
 329         unsigned char temp;
 330
 331         if (dma_chan != SSCAPE_DMA_A)
 332         {
 333                 printk(KERN_WARNING "soundscape: Tried to use DMA channel  != A. Why?\n");
 334                 return;
 335         }
 336         audio_devs[devc->codec_audiodev]->flags &= ~DMA_AUTOMODE;
 337         DMAbuf_start_dma(devc->codec_audiodev, buf, blk_size, mode);
 338         audio_devs[devc->codec_audiodev]->flags |= DMA_AUTOMODE;
 339
 340         temp = devc->dma << 4;  /* Setup DMA channel select bits */
 341         if (devc->dma <= 3)
 342                 temp |= 0x80;   /* 8 bit DMA channel */
 343
 344         temp |= 1;              /* Trigger DMA */
 345         sscape_write(devc, GA_DMAA_REG, temp);
 346         temp &= 0xfe;           /* Clear DMA trigger */
 347         sscape_write(devc, GA_DMAA_REG, temp);
 348 }
 349
 350 static int verify_mpu(struct sscape_info *devc)
 351 {
 352         /*
 353          * The SoundScape board could be in three modes (MPU, 8250 and host).
 354          * If the card is not in the MPU mode, enabling the MPU driver will
 355          * cause infinite loop (the driver believes that there is always some
 356          * received data in the buffer.
 357          *
 358          * Detect this by looking if there are more than 10 received MIDI bytes
 359          * (0x00) in the buffer.
 360          */
 361
 362         int i;
 363
 364         for (i = 0; i < 10; i++)
 365         {
 366                 if (inb(devc->base + HOST_CTRL) & 0x80)
 367                         return 1;
 368
 369                 if (inb(devc->base) != 0x00)
 370                         return 1;
 371         }
 372         printk(KERN_WARNING "SoundScape: The device is not in the MPU-401 mode\n");
 373         return 0;
 374 }
 375
 376 static int sscape_coproc_open(void *dev_info, int sub_device)
 377 {
 378         if (sub_device == COPR_MIDI)
 379         {
 380                 set_mt32(devc, 0);
 381                 if (!verify_mpu(devc))
 382                         return -EIO;
 383         }
 384         return 0;
 385 }
 386
 387 static void sscape_coproc_close(void *dev_info, int sub_device)
 388 {
 389         struct sscape_info *devc = dev_info;
 390         unsigned long   flags;
 391
 392         spin_lock_irqsave(&devc->lock,flags);
 393         if (devc->dma_allocated)
 394         {
 395                 __sscape_write(GA_DMAA_REG, 0x20);      /* DMA channel disabled */
 396                 devc->dma_allocated = 0;
 397         }
 398         spin_unlock_irqrestore(&devc->lock,flags);
 399         return;
 400 }
 401
 402 static void sscape_coproc_reset(void *dev_info)
 403 {
 404 }
 405
 406 static int sscape_download_boot(struct sscape_info *devc, unsigned char *block, int size, int flag)
 407 {
 408         unsigned long flags;
 409         unsigned char temp;
 410         volatile int done, timeout_val;
 411         static unsigned char codec_dma_bits;
 412
 413         if (flag & CPF_FIRST)
 414         {
 415                 /*
 416                  * First block. Have to allocate DMA and to reset the board
 417                  * before continuing.
 418                  */
 419
 420                 spin_lock_irqsave(&devc->lock,flags);
 421                 codec_dma_bits = sscape_read(devc, GA_CDCFG_REG);
 422
 423                 if (devc->dma_allocated == 0)
 424                         devc->dma_allocated = 1;
 425
 426                 spin_unlock_irqrestore(&devc->lock,flags);
 427
 428                 sscape_write(devc, GA_HMCTL_REG,
 429                         (temp = sscape_read(devc, GA_HMCTL_REG)) & 0x3f);       /*Reset */
 430
 431                 for (timeout_val = 10000; timeout_val > 0; timeout_val--)
 432                         sscape_read(devc, GA_HMCTL_REG);        /* Delay */
 433
 434                 /* Take board out of reset */
 435                 sscape_write(devc, GA_HMCTL_REG,
 436                         (temp = sscape_read(devc, GA_HMCTL_REG)) | 0x80);
 437         }
 438         /*
 439          * Transfer one code block using DMA
 440          */
 441         if (audio_devs[devc->codec_audiodev]->dmap_out->raw_buf == NULL)
 442         {
 443                 printk(KERN_WARNING "soundscape: DMA buffer not available\n");
 444                 return 0;
 445         }
 446         memcpy(audio_devs[devc->codec_audiodev]->dmap_out->raw_buf, block, size);
 447
 448         spin_lock_irqsave(&devc->lock,flags);
 449
 450         /******** INTERRUPTS DISABLED NOW ********/
 451
 452         do_dma(devc, SSCAPE_DMA_A,
 453                audio_devs[devc->codec_audiodev]->dmap_out->raw_buf_phys,
 454                size, DMA_MODE_WRITE);
 455
 456         /*
 457          * Wait until transfer completes.
 458          */
 459
 460         done = 0;
 461         timeout_val = 30;
 462         while (!done && timeout_val-- > 0)
 463         {
 464                 int resid;
 465
 466                 if (HZ / 50)
 467                         sleep(HZ / 50);
 468                 clear_dma_ff(devc->dma);
 469                 if ((resid = get_dma_residue(devc->dma)) == 0)
 470                         done = 1;
 471         }
 472
 473         spin_unlock_irqrestore(&devc->lock,flags);
 474         if (!done)
 475                 return 0;
 476
 477         if (flag & CPF_LAST)
 478         {
 479                 /*
 480                  * Take the board out of reset
 481                  */
 482                 outb((0x00), PORT(HOST_CTRL));
 483                 outb((0x00), PORT(MIDI_CTRL));
 484
 485                 temp = sscape_read(devc, GA_HMCTL_REG);
 486                 temp |= 0x40;
 487                 sscape_write(devc, GA_HMCTL_REG, temp); /* Kickstart the board */
 488
 489                 /*
 490                  * Wait until the ODB wakes up
 491                  */
 492                 spin_lock_irqsave(&devc->lock,flags);
 493                 done = 0;
 494                 timeout_val = 5 * HZ;
 495                 while (!done && timeout_val-- > 0)
 496                 {
 497                         unsigned char x;
 498
 499                         sleep(1);
 500                         x = inb(PORT(HOST_DATA));
 501                         if (x == 0xff || x == 0xfe)             /* OBP startup acknowledge */
 502                         {
 503                                 DDB(printk("Soundscape: Acknowledge = %x\n", x));
 504                                 done = 1;
 505                         }
 506                 }
 507                 sscape_write(devc, GA_CDCFG_REG, codec_dma_bits);
 508
 509                 spin_unlock_irqrestore(&devc->lock,flags);
 510                 if (!done)
 511                 {
 512                         printk(KERN_ERR "soundscape: The OBP didn't respond after code download\n");
 513                         return 0;
 514                 }
 515                 spin_lock_irqsave(&devc->lock,flags);
 516                 done = 0;
 517                 timeout_val = 5 * HZ;
 518                 while (!done && timeout_val-- > 0)
 519                 {
 520                         sleep(1);
 521                         if (inb(PORT(HOST_DATA)) == 0xfe)       /* Host startup acknowledge */
 522                                 done = 1;
 523                 }
 524                 spin_unlock_irqrestore(&devc->lock,flags);
 525                 if (!done)
 526                 {
 527                         printk(KERN_ERR "soundscape: OBP Initialization failed.\n");
 528                         return 0;
 529                 }
 530                 printk(KERN_INFO "SoundScape board initialized OK\n");
 531                 set_control(devc, CTL_MASTER_VOL, 100);
 532                 set_control(devc, CTL_SYNTH_VOL, 100);
 533
 534 #ifdef SSCAPE_DEBUG3
 535                 /*
 536                  * Temporary debugging aid. Print contents of the registers after
 537                  * downloading the code.
 538                  */
 539                 {
 540                         int i;
 541
 542                         for (i = 0; i < 13; i++)
 543                                 printk("I%d = %02x (new value)\n", i, sscape_read(devc, i));
 544                 }
 545 #endif
 546
 547         }
 548         return 1;
 549 }
 550
 551 static int download_boot_block(void *dev_info, copr_buffer * buf)
 552 {
 553         if (buf->len <= 0 || buf->len > sizeof(buf->data))
 554                 return -EINVAL;
 555
 556         if (!sscape_download_boot(devc, buf->data, buf->len, buf->flags))
 557         {
 558                 printk(KERN_ERR "soundscape: Unable to load microcode block to the OBP.\n");
 559                 return -EIO;
 560         }
 561         return 0;
 562 }
 563
 564 static int sscape_coproc_ioctl(void *dev_info, unsigned int cmd, void __user *arg, int local)
 565 {
 566         copr_buffer *buf;
 567         int err;
 568
 569         switch (cmd)
 570         {
 571                 case SNDCTL_COPR_RESET:
 572                         sscape_coproc_reset(dev_info);
 573                         return 0;
 574
 575                 case SNDCTL_COPR_LOAD:
 576                         buf = (copr_buffer *) vmalloc(sizeof(copr_buffer));
 577                         if (buf == NULL)
 578                                 return -ENOSPC;
 579                         if (copy_from_user(buf, arg, sizeof(copr_buffer)))
 580                         {
 581                                 vfree(buf);
 582                                 return -EFAULT;
 583                         }
 584                         err = download_boot_block(dev_info, buf);
 585                         vfree(buf);
 586                         return err;
 587
 588                 default:
 589                         return -EINVAL;
 590         }
 591 }
 592
 593 static coproc_operations sscape_coproc_operations =
 594 {
 595         "SoundScape M68K",
 596         THIS_MODULE,
 597         sscape_coproc_open,
 598         sscape_coproc_close,
 599         sscape_coproc_ioctl,
 600         sscape_coproc_reset,
 601         &adev_info
 602 };
 603
 604 static struct resource *sscape_ports;
 605 static int sscape_is_pnp;
 606
 607 static void __init attach_sscape(struct address_info *hw_config)
 608 {
 609 #ifndef SSCAPE_REGS
 610         /*
 611          * Config register values for Spea/V7 Media FX and Ensoniq S-2000.
 612          * These values are card
 613          * dependent. If you have another SoundScape based card, you have to
 614          * find the correct values. Do the following:
 615          *  - Compile this driver with SSCAPE_DEBUG1 defined.
 616          *  - Shut down and power off your machine.
 617          *  - Boot with DOS so that the SSINIT.EXE program is run.
 618          *  - Warm boot to {Linux|SYSV|BSD} and write down the lines displayed
 619          *    when detecting the SoundScape.
 620          *  - Modify the following list to use the values printed during boot.
 621          *    Undefine the SSCAPE_DEBUG1
 622          */
 623 #define SSCAPE_REGS { \
 624 /* I0 */        0x00, \
 625 /* I1 */        0xf0, /* Note! Ignored. Set always to 0xf0 */ \
 626 /* I2 */        0x20, /* Note! Ignored. Set always to 0x20 */ \
 627 /* I3 */        0x20, /* Note! Ignored. Set always to 0x20 */ \
 628 /* I4 */        0xf5, /* Ignored */ \
 629 /* I5 */        0x10, \
 630 /* I6 */        0x00, \
 631 /* I7 */        0x2e, /* I7 MEM config A. Likely to vary between models */ \
 632 /* I8 */        0x00, /* I8 MEM config B. Likely to vary between models */ \
 633 /* I9 */        0x40 /* Ignored */ \
 634         }
 635 #endif
 636
 637         unsigned long   flags;
 638         static unsigned char regs[10] = SSCAPE_REGS;
 639
 640         int i, irq_bits = 0xff;
 641
 642         if (old_hardware)
 643         {
 644                 valid_interrupts = valid_interrupts_old;
 645                 conf_printf("Ensoniq SoundScape (old)", hw_config);
 646         }
 647         else
 648                 conf_printf("Ensoniq SoundScape", hw_config);
 649
 650         for (i = 0; i < 4; i++)
 651         {
 652                 if (hw_config->irq == valid_interrupts[i])
 653                 {
 654                         irq_bits = i;
 655                         break;
 656                 }
 657         }
 658         if (hw_config->irq > 15 || (regs[4] = irq_bits == 0xff))
 659         {
 660                 printk(KERN_ERR "Invalid IRQ%d\n", hw_config->irq);
 661                 release_region(devc->base, 2);
 662                 release_region(devc->base + 2, 6);
 663                 if (sscape_is_pnp)
 664                         release_region(devc->codec, 2);
 665                 return;
 666         }
 667
 668         if (!sscape_is_pnp) {
 669
 670                 spin_lock_irqsave(&devc->lock,flags);
 671                 /* Host interrupt enable */
 672                 sscape_write(devc, 1, 0xf0);    /* All interrupts enabled */
 673                 /* DMA A status/trigger register */
 674                 sscape_write(devc, 2, 0x20);    /* DMA channel disabled */
 675                 /* DMA B status/trigger register */
 676                 sscape_write(devc, 3, 0x20);    /* DMA channel disabled */
 677                 /* Host interrupt config reg */
 678                 sscape_write(devc, 4, 0xf0 | (irq_bits << 2) | irq_bits);
 679                 /* Don't destroy CD-ROM DMA config bits (0xc0) */
 680                 sscape_write(devc, 5, (regs[5] & 0x3f) | (sscape_read(devc, 5) & 0xc0));
 681                 /* CD-ROM config (WSS codec actually) */
 682                 sscape_write(devc, 6, regs[6]);
 683                 sscape_write(devc, 7, regs[7]);
 684                 sscape_write(devc, 8, regs[8]);
 685                 /* Master control reg. Don't modify CR-ROM bits. Disable SB emul */
 686                 sscape_write(devc, 9, (sscape_read(devc, 9) & 0xf0) | 0x08);
 687                 spin_unlock_irqrestore(&devc->lock,flags);
 688         }
 689 #ifdef SSCAPE_DEBUG2
 690         /*
 691          * Temporary debugging aid. Print contents of the registers after
 692          * changing them.
 693          */
 694         {
 695                 int i;
 696
 697                 for (i = 0; i < 13; i++)
 698                         printk("I%d = %02x (new value)\n", i, sscape_read(devc, i));
 699         }
 700 #endif
 701
 702         if (probe_mpu401(hw_config, sscape_ports))
 703                 hw_config->always_detect = 1;
 704         hw_config->name = "SoundScape";
 705
 706         hw_config->irq *= -1;   /* Negative value signals IRQ sharing */
 707         attach_mpu401(hw_config, THIS_MODULE);
 708         hw_config->irq *= -1;   /* Restore it */
 709
 710         if (hw_config->slots[1] != -1)  /* The MPU driver installed itself */
 711         {
 712                 sscape_mididev = hw_config->slots[1];
 713                 midi_devs[hw_config->slots[1]]->coproc = &sscape_coproc_operations;
 714         }
 715         sscape_write(devc, GA_INTENA_REG, 0x80);        /* Master IRQ enable */
 716         devc->ok = 1;
 717         devc->failed = 0;
 718 }
 719
 720 static int detect_ga(sscape_info * devc)
 721 {
 722         unsigned char save;
 723
 724         DDB(printk("Entered Soundscape detect_ga(%x)\n", devc->base));
 725
 726         /*
 727          * First check that the address register of "ODIE" is
 728          * there and that it has exactly 4 writable bits.
 729          * First 4 bits
 730          */
 731
 732         if ((save = inb(PORT(ODIE_ADDR))) & 0xf0)
 733         {
 734                 DDB(printk("soundscape: Detect error A\n"));
 735                 return 0;
 736         }
 737         outb((0x00), PORT(ODIE_ADDR));
 738         if (inb(PORT(ODIE_ADDR)) != 0x00)
 739         {
 740                 DDB(printk("soundscape: Detect error B\n"));
 741                 return 0;
 742         }
 743         outb((0xff), PORT(ODIE_ADDR));
 744         if (inb(PORT(ODIE_ADDR)) != 0x0f)
 745         {
 746                 DDB(printk("soundscape: Detect error C\n"));
 747                 return 0;
 748         }
 749         outb((save), PORT(ODIE_ADDR));
 750
 751         /*
 752          * Now verify that some indirect registers return zero on some bits.
 753          * This may break the driver with some future revisions of "ODIE" but...
 754          */
 755
 756         if (sscape_read(devc, 0) & 0x0c)
 757         {
 758                 DDB(printk("soundscape: Detect error D (%x)\n", sscape_read(devc, 0)));
 759                 return 0;
 760         }
 761         if (sscape_read(devc, 1) & 0x0f)
 762         {
 763                 DDB(printk("soundscape: Detect error E\n"));
 764                 return 0;
 765         }
 766         if (sscape_read(devc, 5) & 0x0f)
 767         {
 768                 DDB(printk("soundscape: Detect error F\n"));
 769                 return 0;
 770         }
 771         return 1;
 772 }
 773
 774 static  int sscape_read_host_ctrl(sscape_info* devc)
 775 {
 776         return host_read(devc);
 777 }
 778
 779 static  void sscape_write_host_ctrl2(sscape_info *devc, int a, int b)
 780 {
 781         host_command2(devc, a, b);
 782 }
 783
 784 static int sscape_alloc_dma(sscape_info *devc)
 785 {
 786         char *start_addr, *end_addr;
 787         int dma_pagesize;
 788         int sz, size;
 789         struct page *page;
 790
 791         if (devc->raw_buf != NULL) return 0;    /* Already done */
 792         dma_pagesize = (devc->dma < 4) ? (64 * 1024) : (128 * 1024);
 793         devc->raw_buf = NULL;
 794         devc->buffsize = 8192*4;
 795         if (devc->buffsize > dma_pagesize) devc->buffsize = dma_pagesize;
 796         start_addr = NULL;
 797         /*
 798          * Now loop until we get a free buffer. Try to get smaller buffer if
 799          * it fails. Don't accept smaller than 8k buffer for performance
 800          * reasons.
 801          */
 802         while (start_addr == NULL && devc->buffsize > PAGE_SIZE) {
 803                 for (sz = 0, size = PAGE_SIZE; size < devc->buffsize; sz++, size <<= 1);
 804                 devc->buffsize = PAGE_SIZE * (1 << sz);
 805                 start_addr = (char *) __get_free_pages(GFP_ATOMIC|GFP_DMA, sz);
 806                 if (start_addr == NULL) devc->buffsize /= 2;
 807         }
 808
 809         if (start_addr == NULL) {
 810                 printk(KERN_ERR "sscape pnp init error: Couldn't allocate DMA buffer\n");
 811                 return 0;
 812         } else {
 813                 /* make some checks */
 814                 end_addr = start_addr + devc->buffsize - 1;
 815                 /* now check if it fits into the same dma-pagesize */
 816
 817                 if (((long) start_addr & ~(dma_pagesize - 1)) != ((long) end_addr & ~(dma_pagesize - 1))
 818                     || end_addr >= (char *) (MAX_DMA_ADDRESS)) {
 819                         printk(KERN_ERR "sscape pnp: Got invalid address 0x%lx for %db DMA-buffer\n", (long) start_addr, devc->buffsize);
 820                         return 0;
 821                 }
 822         }
 823         devc->raw_buf = start_addr;
 824         devc->raw_buf_phys = virt_to_bus(start_addr);
 825
 826         for (page = virt_to_page(start_addr); page <= virt_to_page(end_addr); page++)
 827                 SetPageReserved(page);
 828         return 1;
 829 }
 830
 831 static void sscape_free_dma(sscape_info *devc)
 832 {
 833         int sz, size;
 834         unsigned long start_addr, end_addr;
 835         struct page *page;
 836
 837         if (devc->raw_buf == NULL) return;
 838         for (sz = 0, size = PAGE_SIZE; size < devc->buffsize; sz++, size <<= 1);
 839         start_addr = (unsigned long) devc->raw_buf;
 840         end_addr = start_addr + devc->buffsize;
 841
 842         for (page = virt_to_page(start_addr); page <= virt_to_page(end_addr); page++)
 843                 ClearPageReserved(page);
 844
 845         free_pages((unsigned long) devc->raw_buf, sz);
 846         devc->raw_buf = NULL;
 847 }
 848
 849 /* Intel version !!!!!!!!! */
 850
 851 static int sscape_start_dma(int chan, unsigned long physaddr, int count, int dma_mode)
 852 {
 853         unsigned long flags;
 854
 855         flags = claim_dma_lock();
 856         disable_dma(chan);
 857         clear_dma_ff(chan);
 858         set_dma_mode(chan, dma_mode);
 859         set_dma_addr(chan, physaddr);
 860         set_dma_count(chan, count);
 861         enable_dma(chan);
 862         release_dma_lock(flags);
 863         return 0;
 864 }
 865
 866 static void sscape_pnp_start_dma(sscape_info* devc, int arg )
 867 {
 868         int reg;
 869         if (arg == 0) reg = 2;
 870         else reg = 3;
 871
 872         sscape_write(devc, reg, sscape_read( devc, reg) | 0x01);
 873         sscape_write(devc, reg, sscape_read( devc, reg) & 0xFE);
 874 }
 875
 876 static int sscape_pnp_wait_dma (sscape_info* devc, int arg )
 877 {
 878         int             reg;
 879         unsigned long   i;
 880         unsigned char   d;
 881
 882         if (arg == 0) reg = 2;
 883         else reg = 3;
 884
 885         sleep ( 1 );
 886         i = 0;
 887         do {
 888                 d = sscape_read(devc, reg) & 1;
 889                 if ( d == 1)  break;
 890                 i++;
 891         } while (i < 500000);
 892         d = sscape_read(devc, reg) & 1;
 893         return d;
 894 }
 895
 896 static  int     sscape_pnp_alloc_dma(sscape_info* devc)
 897 {
 898         /* printk(KERN_INFO "sscape: requesting dma\n"); */
 899         if (request_dma(devc -> dma, "sscape")) return 0;
 900         /* printk(KERN_INFO "sscape: dma channel allocated\n"); */
 901         if (!sscape_alloc_dma(devc)) {
 902                 free_dma(devc -> dma);
 903                 return 0;
 904         };
 905         return 1;
 906 }
 907
 908 static  void    sscape_pnp_free_dma(sscape_info* devc)
 909 {
 910         sscape_free_dma( devc);
 911         free_dma(devc -> dma );
 912         /* printk(KERN_INFO "sscape: dma released\n"); */
 913 }
 914
 915 static  int     sscape_pnp_upload_file(sscape_info* devc, char* fn)
 916 {
 917         int             done = 0;
 918         int             timeout_val;
 919         char*           data,*dt;
 920         int             len,l;
 921         unsigned long   flags;
 922
 923         sscape_write( devc, 9, sscape_read(devc, 9 )  & 0x3F );
 924         sscape_write( devc, 2, (devc -> dma << 4) | 0x80 );
 925         sscape_write( devc, 3, 0x20 );
 926         sscape_write( devc, 9, sscape_read( devc, 9 )  | 0x80 );
 927
 928         len = mod_firmware_load(fn, &data);
 929         if (len == 0) {
 930                     printk(KERN_ERR "sscape: file not found: %s\n", fn);
 931                     return 0;
 932         }
 933         dt = data;
 934         spin_lock_irqsave(&devc->lock,flags);
 935         while ( len > 0 ) {
 936                 if (len > devc -> buffsize) l = devc->buffsize;
 937                 else l = len;
 938                 len -= l;
 939                 memcpy(devc->raw_buf, dt, l); dt += l;
 940                 sscape_start_dma(devc->dma, devc->raw_buf_phys, l, 0x48);
 941                 sscape_pnp_start_dma ( devc, 0 );
 942                 if (sscape_pnp_wait_dma ( devc, 0 ) == 0) {
 943                         spin_unlock_irqrestore(&devc->lock,flags);
 944                         return 0;
 945                 }
 946         }
 947
 948         spin_unlock_irqrestore(&devc->lock,flags);
 949         vfree(data);
 950
 951         outb(0, devc -> base + 2);
 952         outb(0, devc -> base);
 953
 954         sscape_write ( devc, 9, sscape_read( devc, 9 ) | 0x40);
 955
 956         timeout_val = 5 * HZ;
 957         while (!done && timeout_val-- > 0)
 958         {
 959                 unsigned char x;
 960                 sleep(1);
 961                 x = inb( devc -> base + 3);
 962                 if (x == 0xff || x == 0xfe)             /* OBP startup acknowledge */
 963                 {
 964                         //printk(KERN_ERR "Soundscape: Acknowledge = %x\n", x);
 965                         done = 1;
 966                 }
 967         }
 968         timeout_val = 5 * HZ;
 969         done = 0;
 970         while (!done && timeout_val-- > 0)
 971         {
 972                 unsigned char x;
 973                 sleep(1);
 974                 x = inb( devc -> base + 3);
 975                 if (x == 0xfe)          /* OBP startup acknowledge */
 976                 {
 977                         //printk(KERN_ERR "Soundscape: Acknowledge = %x\n", x);
 978                         done = 1;
 979                 }
 980         }
 981
 982         if ( !done ) printk(KERN_ERR "soundscape: OBP Initialization failed.\n");
 983
 984         sscape_write( devc, 2, devc->ic_type == IC_ODIE ? 0x70 : 0x40);
 985         sscape_write( devc, 3, (devc -> dma << 4) + 0x80);
 986         return 1;
 987 }
 988
 989 static void __init sscape_pnp_init_hw(sscape_info* devc)
 990 {
 991         unsigned char midi_irq = 0, sb_irq = 0;
 992         unsigned i;
 993         static  char code_file_name[23] = "/sndscape/sndscape.cox";
 994
 995         int sscape_joystic_enable       = 0x7f;
 996         int sscape_mic_enable           = 0;
 997         int sscape_ext_midi             = 0;
 998
 999         if ( !sscape_pnp_alloc_dma(devc) ) {
1000                 printk(KERN_ERR "sscape: faild to allocate dma\n");
1001                 return;
1002         }
1003
1004         for (i = 0; i < 4; i++) {
1005                 if ( devc -> irq   == valid_interrupts[i] )
1006                         midi_irq = i;
1007                 if ( devc -> codec_irq == valid_interrupts[i] )
1008                         sb_irq = i;
1009         }
1010
1011         sscape_write( devc, 5, 0x50);
1012         sscape_write( devc, 7, 0x2e);
1013         sscape_write( devc, 8, 0x00);
1014
1015         sscape_write( devc, 2, devc->ic_type == IC_ODIE ? 0x70 : 0x40);
1016         sscape_write( devc, 3, ( devc -> dma << 4) | 0x80);
1017
1018         sscape_write (devc, 4, 0xF0 | (midi_irq<<2) | midi_irq);
1019
1020         i = 0x10; //sscape_read(devc, 9) & (devc->ic_type == IC_ODIE ? 0xf0 : 0xc0);
1021         if (sscape_joystic_enable) i |= 8;
1022
1023         sscape_write (devc, 9, i);
1024         sscape_write (devc, 6, 0x80);
1025         sscape_write (devc, 1, 0x80);
1026
1027         if (devc -> codec_type == 2) {
1028                 sscape_pnp_write_codec( devc, 0x0C, 0x50);
1029                 sscape_pnp_write_codec( devc, 0x10, sscape_pnp_read_codec( devc, 0x10) & 0x3F);
1030                 sscape_pnp_write_codec( devc, 0x11, sscape_pnp_read_codec( devc, 0x11) | 0xC0);
1031                 sscape_pnp_write_codec( devc, 29, 0x20);
1032         }
1033
1034         if (sscape_pnp_upload_file(devc, "/sndscape/scope.cod") == 0 ) {
1035                 printk(KERN_ERR "sscape: faild to upload file /sndscape/scope.cod\n");
1036                 sscape_pnp_free_dma(devc);
1037                 return;
1038         }
1039
1040         i = sscape_read_host_ctrl( devc );
1041
1042         if ( (i & 0x0F) >  7 ) {
1043                 printk(KERN_ERR "sscape: scope.cod faild\n");
1044                 sscape_pnp_free_dma(devc);
1045                 return;
1046         }
1047         if ( i & 0x10 ) sscape_write( devc, 7, 0x2F);
1048         code_file_name[21] = (char) ( i & 0x0F) + 0x30;
1049         if (sscape_pnp_upload_file( devc, code_file_name) == 0) {
1050                 printk(KERN_ERR "sscape: faild to upload file %s\n", code_file_name);
1051                 sscape_pnp_free_dma(devc);
1052                 return;
1053         }
1054
1055         if (devc->ic_type != IC_ODIE) {
1056                 sscape_pnp_write_codec( devc, 10, (sscape_pnp_read_codec(devc, 10) & 0x7f) |
1057                  ( sscape_mic_enable == 0 ? 0x00 : 0x80) );
1058         }
1059         sscape_write_host_ctrl2( devc, 0x84, 0x64 );  /* MIDI volume */
1060         sscape_write_host_ctrl2( devc, 0x86, 0x64 );  /* MIDI volume?? */
1061         sscape_write_host_ctrl2( devc, 0x8A, sscape_ext_midi);
1062
1063         sscape_pnp_write_codec ( devc, 6, 0x3f ); //WAV_VOL
1064         sscape_pnp_write_codec ( devc, 7, 0x3f ); //WAV_VOL
1065         sscape_pnp_write_codec ( devc, 2, 0x1F ); //WD_CDXVOLL
1066         sscape_pnp_write_codec ( devc, 3, 0x1F ); //WD_CDXVOLR
1067
1068         if (devc -> codec_type == 1) {
1069                 sscape_pnp_write_codec ( devc, 4, 0x1F );
1070                 sscape_pnp_write_codec ( devc, 5, 0x1F );
1071                 sscape_write_host_ctrl2( devc, 0x88, sscape_mic_enable);
1072         } else {
1073                 int t;
1074                 sscape_pnp_write_codec ( devc, 0x10, 0x1F << 1);
1075                 sscape_pnp_write_codec ( devc, 0x11, 0xC0 | (0x1F << 1));
1076
1077                 t = sscape_pnp_read_codec( devc, 0x00) & 0xDF;
1078                 if ( (sscape_mic_enable == 0)) t |= 0;
1079                 else t |= 0x20;
1080                 sscape_pnp_write_codec ( devc, 0x00, t);
1081                 t = sscape_pnp_read_codec( devc, 0x01) & 0xDF;
1082                 if ( (sscape_mic_enable == 0) ) t |= 0;
1083                 else t |= 0x20;
1084                 sscape_pnp_write_codec ( devc, 0x01, t);
1085                 sscape_pnp_write_codec ( devc, 0x40 | 29 , 0x20);
1086                 outb(0, devc -> codec);
1087         }
1088         if (devc -> ic_type == IC_OPUS ) {
1089                 int i = sscape_read( devc, 9 );
1090                 sscape_write( devc, 9, i | 3 );
1091                 sscape_write( devc, 3, 0x40);
1092
1093                 if (request_region(0x228, 1, "sscape setup junk")) {
1094                         outb(0, 0x228);
1095                         release_region(0x228,1);
1096                 }
1097                 sscape_write( devc, 3, (devc -> dma << 4) | 0x80);
1098                 sscape_write( devc, 9, i );
1099         }
1100
1101         host_close ( devc );
1102         sscape_pnp_free_dma(devc);
1103 }
1104
1105 static int __init detect_sscape_pnp(sscape_info* devc)
1106 {
1107         long     i, irq_bits = 0xff;
1108         unsigned int d;
1109
1110         DDB(printk("Entered detect_sscape_pnp(%x)\n", devc->base));
1111
1112         if (!request_region(devc->codec, 2, "sscape codec")) {
1113                 printk(KERN_ERR "detect_sscape_pnp: port %x is not free\n", devc->codec);
1114                 return 0;
1115         }
1116
1117         if ((inb(devc->base + 2) & 0x78) != 0)
1118                 goto fail;
1119
1120         d = inb ( devc -> base + 4) & 0xF0;
1121         if (d & 0x80)
1122                 goto fail;
1123
1124         if (d == 0) {
1125                 devc->codec_type = 1;
1126                 devc->ic_type = IC_ODIE;
1127         } else if ( (d & 0x60) != 0) {
1128                 devc->codec_type = 2;
1129                 devc->ic_type = IC_OPUS;
1130         } else if ( (d & 0x40) != 0) {  /* WTF? */
1131                 devc->codec_type = 2;
1132                 devc->ic_type = IC_ODIE;
1133         } else
1134                 goto fail;
1135
1136         sscape_is_pnp = 1;
1137
1138         outb(0xFA, devc -> base+4);
1139         if  ((inb( devc -> base+4) & 0x9F) != 0x0A)
1140                 goto fail;
1141         outb(0xFE, devc -> base+4);
1142         if  ( (inb(devc -> base+4) & 0x9F) != 0x0E)
1143                 goto fail;
1144         if  ( (inb(devc -> base+5) & 0x9F) != 0x0E)
1145                 goto fail;
1146
1147         if (devc->codec_type == 2) {
1148                 if (devc->codec != devc->base + 8) {
1149                         printk("soundscape warning: incorrect codec port specified\n");
1150                         goto fail;
1151                 }
1152                 d = 0x10 | (sscape_read(devc, 9)  & 0xCF);
1153                 sscape_write(devc, 9, d);
1154                 sscape_write(devc, 6, 0x80);
1155         } else {
1156                 //todo: check codec is not base + 8
1157         }
1158
1159         d  = (sscape_read(devc, 9) & 0x3F) | 0xC0;
1160         sscape_write(devc, 9, d);
1161
1162         for (i = 0; i < 550000; i++)
1163                 if ( !(inb(devc -> codec) & 0x80) ) break;
1164
1165         d = inb(devc -> codec);
1166         if (d & 0x80)
1167                 goto fail;
1168         if ( inb(devc -> codec + 2) == 0xFF)
1169                 goto fail;
1170
1171         sscape_write(devc, 9, sscape_read(devc, 9)  & 0x3F );
1172
1173         d  = inb(devc -> codec) & 0x80;
1174         if ( d == 0) {
1175                 printk(KERN_INFO "soundscape: hardware detected\n");
1176                 valid_interrupts = valid_interrupts_new;
1177         } else  {
1178                 printk(KERN_INFO "soundscape: board looks like media fx\n");
1179                 valid_interrupts = valid_interrupts_old;
1180                 old_hardware = 1;
1181         }
1182
1183         sscape_write( devc, 9, 0xC0 | (sscape_read(devc, 9)  & 0x3F) );
1184
1185         for (i = 0; i < 550000; i++)
1186                 if ( !(inb(devc -> codec) & 0x80))
1187                         break;
1188
1189         sscape_pnp_init_hw(devc);
1190
1191         for (i = 0; i < 4; i++)
1192         {
1193                 if (devc->codec_irq == valid_interrupts[i]) {
1194                         irq_bits = i;
1195                         break;
1196                 }
1197         }
1198         sscape_write(devc, GA_INTENA_REG, 0x00);
1199         sscape_write(devc, GA_DMACFG_REG, 0x50);
1200         sscape_write(devc, GA_DMAA_REG, 0x70);
1201         sscape_write(devc, GA_DMAB_REG, 0x20);
1202         sscape_write(devc, GA_INTCFG_REG, 0xf0);
1203         sscape_write(devc, GA_CDCFG_REG, 0x89 | (devc->dma << 4) | (irq_bits << 1));
1204
1205         sscape_pnp_write_codec( devc, 0, sscape_pnp_read_codec( devc, 0) | 0x20);
1206         sscape_pnp_write_codec( devc, 0, sscape_pnp_read_codec( devc, 1) | 0x20);
1207
1208         return 1;
1209 fail:
1210         release_region(devc->codec, 2);
1211         return 0;
1212 }
1213
1214 static int __init probe_sscape(struct address_info *hw_config)
1215 {
1216         devc->base = hw_config->io_base;
1217         devc->irq = hw_config->irq;
1218         devc->dma = hw_config->dma;
1219         devc->osp = hw_config->osp;
1220
1221 #ifdef SSCAPE_DEBUG1
1222         /*
1223          * Temporary debugging aid. Print contents of the registers before
1224          * changing them.
1225          */
1226         {
1227                 int i;
1228
1229                 for (i = 0; i < 13; i++)
1230                         printk("I%d = %02x (old value)\n", i, sscape_read(devc, i));
1231         }
1232 #endif
1233         devc->failed = 1;
1234
1235         sscape_ports = request_region(devc->base, 2, "mpu401");
1236         if (!sscape_ports)
1237                 return 0;
1238
1239         if (!request_region(devc->base + 2, 6, "SoundScape")) {
1240                 release_region(devc->base, 2);
1241                 return 0;
1242         }
1243
1244         if (!detect_ga(devc)) {
1245                 if (detect_sscape_pnp(devc))
1246                         return 1;
1247                 release_region(devc->base, 2);
1248                 release_region(devc->base + 2, 6);
1249                 return 0;
1250         }
1251
1252         if (old_hardware)       /* Check that it's really an old Spea/Reveal card. */
1253         {
1254                 unsigned char   tmp;
1255                 int             cc;
1256
1257                 if (!((tmp = sscape_read(devc, GA_HMCTL_REG)) & 0xc0))
1258                 {
1259                         sscape_write(devc, GA_HMCTL_REG, tmp | 0x80);
1260                         for (cc = 0; cc < 200000; ++cc)
1261                                 inb(devc->base + ODIE_ADDR);
1262                 }
1263         }
1264         return 1;
1265 }
1266
1267 static int __init init_ss_ms_sound(struct address_info *hw_config)
1268 {
1269         int i, irq_bits = 0xff;
1270         int ad_flags = 0;
1271         struct resource *ports;
1272
1273         if (devc->failed)
1274         {
1275                 printk(KERN_ERR "soundscape: Card not detected\n");
1276                 return 0;
1277         }
1278         if (devc->ok == 0)
1279         {
1280                 printk(KERN_ERR "soundscape: Invalid initialization order.\n");
1281                 return 0;
1282         }
1283         for (i = 0; i < 4; i++)
1284         {
1285                 if (hw_config->irq == valid_interrupts[i])
1286                 {
1287                         irq_bits = i;
1288                         break;
1289                 }
1290         }
1291         if (irq_bits == 0xff) {
1292                 printk(KERN_ERR "soundscape: Invalid MSS IRQ%d\n", hw_config->irq);
1293                 return 0;
1294         }
1295
1296         if (old_hardware)
1297                 ad_flags = 0x12345677;  /* Tell that we may have a CS4248 chip (Spea-V7 Media FX) */
1298         else if (sscape_is_pnp)
1299                 ad_flags = 0x87654321;  /* Tell that we have a soundscape pnp with 1845 chip */
1300
1301         ports = request_region(hw_config->io_base, 4, "ad1848");
1302         if (!ports) {
1303                 printk(KERN_ERR "soundscape: ports busy\n");
1304                 return 0;
1305         }
1306
1307         if (!ad1848_detect(ports, &ad_flags, hw_config->osp)) {
1308                 release_region(hw_config->io_base, 4);
1309                 return 0;
1310         }
1311
1312         if (!sscape_is_pnp)  /*pnp is already setup*/
1313         {
1314                 /*
1315                  * Setup the DMA polarity.
1316                  */
1317                 sscape_write(devc, GA_DMACFG_REG, 0x50);
1318
1319                 /*
1320                  * Take the gate-array off of the DMA channel.
1321                  */
1322                 sscape_write(devc, GA_DMAB_REG, 0x20);
1323
1324                 /*
1325                  * Init the AD1848 (CD-ROM) config reg.
1326                  */
1327                 sscape_write(devc, GA_CDCFG_REG, 0x89 | (hw_config->dma << 4) | (irq_bits << 1));
1328         }
1329
1330         if (hw_config->irq == devc->irq)
1331                 printk(KERN_WARNING "soundscape: Warning! The WSS mode can't share IRQ with MIDI\n");
1332
1333         hw_config->slots[0] = ad1848_init(
1334                         sscape_is_pnp ? "SoundScape" : "SoundScape PNP",
1335                         ports,
1336                         hw_config->irq,
1337                         hw_config->dma,
1338                         hw_config->dma,
1339                         0,
1340                         devc->osp,
1341                         THIS_MODULE);
1342
1343
1344         if (hw_config->slots[0] != -1)  /* The AD1848 driver installed itself */
1345         {
1346                 audio_devs[hw_config->slots[0]]->coproc = &sscape_coproc_operations;
1347                 devc->codec_audiodev = hw_config->slots[0];
1348                 devc->my_audiodev = hw_config->slots[0];
1349
1350                 /* Set proper routings here (what are they) */
1351                 AD1848_REROUTE(SOUND_MIXER_LINE1, SOUND_MIXER_LINE);
1352         }
1353
1354 #ifdef SSCAPE_DEBUG5
1355         /*
1356          * Temporary debugging aid. Print contents of the registers
1357          * after the AD1848 device has been initialized.
1358          */
1359         {
1360                 int i;
1361
1362                 for (i = 0; i < 13; i++)
1363                         printk("I%d = %02x\n", i, sscape_read(devc, i));
1364         }
1365 #endif
1366         return 1;
1367 }
1368
1369 static void __exit unload_sscape(struct address_info *hw_config)
1370 {
1371         release_region(devc->base + 2, 6);
1372         unload_mpu401(hw_config);
1373         if (sscape_is_pnp)
1374                 release_region(devc->codec, 2);
1375 }
1376
1377 static void __exit unload_ss_ms_sound(struct address_info *hw_config)
1378 {
1379         ad1848_unload(hw_config->io_base,
1380                       hw_config->irq,
1381                       devc->dma,
1382                       devc->dma,
1383                       0);
1384         sound_unload_audiodev(hw_config->slots[0]);
1385 }
1386
1387 static struct address_info cfg;
1388 static struct address_info cfg_mpu;
1389
1390 static int __initdata spea = -1;
1391 static int mss = 0;
1392 static int __initdata dma = -1;
1393 static int __initdata irq = -1;
1394 static int __initdata io = -1;
1395 static int __initdata mpu_irq = -1;
1396 static int __initdata mpu_io = -1;
1397
1398 module_param(dma, int, 0);
1399 module_param(irq, int, 0);
1400 module_param(io, int, 0);
1401 module_param(spea, int, 0);             /* spea=0/1 set the old_hardware */
1402 module_param(mpu_irq, int, 0);
1403 module_param(mpu_io, int, 0);
1404 module_param(mss, int, 0);
1405
1406 static int __init init_sscape(void)
1407 {
1408         printk(KERN_INFO "Soundscape driver Copyright (C) by Hannu Savolainen 1993-1996\n");
1409
1410         cfg.irq = irq;
1411         cfg.dma = dma;
1412         cfg.io_base = io;
1413
1414         cfg_mpu.irq = mpu_irq;
1415         cfg_mpu.io_base = mpu_io;
1416         /* WEH - Try to get right dma channel */
1417         cfg_mpu.dma = dma;
1418
1419         devc->codec = cfg.io_base;
1420         devc->codec_irq = cfg.irq;
1421         devc->codec_type = 0;
1422         devc->ic_type = 0;
1423         devc->raw_buf = NULL;
1424         spin_lock_init(&devc->lock);
1425
1426         if (cfg.dma == -1 || cfg.irq == -1 || cfg.io_base == -1) {
1427                 printk(KERN_ERR "DMA, IRQ, and IO port must be specified.\n");
1428                 return -EINVAL;
1429         }
1430
1431         if (cfg_mpu.irq == -1 && cfg_mpu.io_base != -1) {
1432                 printk(KERN_ERR "MPU_IRQ must be specified if MPU_IO is set.\n");
1433                 return -EINVAL;
1434         }
1435
1436         if(spea != -1) {
1437                 old_hardware = spea;
1438                 printk(KERN_INFO "Forcing %s hardware support.\n",
1439                         spea?"new":"old");
1440         }
1441         if (probe_sscape(&cfg_mpu) == 0)
1442                 return -ENODEV;
1443
1444         attach_sscape(&cfg_mpu);
1445
1446         mss = init_ss_ms_sound(&cfg);
1447
1448         return 0;
1449 }
1450
1451 static void __exit cleanup_sscape(void)
1452 {
1453         if (mss)
1454                 unload_ss_ms_sound(&cfg);
1455         unload_sscape(&cfg_mpu);
1456 }
1457
1458 module_init(init_sscape);
1459 module_exit(cleanup_sscape);
1460
1461 #ifndef MODULE
1462 static int __init setup_sscape(char *str)
1463 {
1464         /* io, irq, dma, mpu_io, mpu_irq */
1465         int ints[6];
1466
1467         str = get_options(str, ARRAY_SIZE(ints), ints);
1468
1469         io      = ints[1];
1470         irq     = ints[2];
1471         dma     = ints[3];
1472         mpu_io  = ints[4];
1473         mpu_irq = ints[5];
1474
1475         return 1;
1476 }
1477
1478 __setup("sscape=", setup_sscape);
1479 #endif
1480 MODULE_LICENSE("GPL");