sound/isa/sscape.c

   1 /*
   2  *   Low-level ALSA driver for the ENSONIQ SoundScape
   3  *   Copyright (c) by Chris Rankin
   4  *
   5  *   This driver was written in part using information obtained from
   6  *   the OSS/Free SoundScape driver, written by Hannu Savolainen.
   7  *
   8  *
   9  *   This program is free software; you can redistribute it and/or modify
  10  *   it under the terms of the GNU General Public License as published by
  11  *   the Free Software Foundation; either version 2 of the License, or
  12  *   (at your option) any later version.
  13  *
  14  *   This program is distributed in the hope that it will be useful,
  15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *   GNU General Public License for more details.
  18  *
  19  *   You should have received a copy of the GNU General Public License
  20  *   along with this program; if not, write to the Free Software
  21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  22  */
  23
  24 #include <linux/init.h>
  25 #include <linux/err.h>
  26 #include <linux/isa.h>
  27 #include <linux/delay.h>
  28 #include <linux/firmware.h>
  29 #include <linux/pnp.h>
  30 #include <linux/spinlock.h>
  31 #include <linux/module.h>
  32 #include <asm/dma.h>
  33 #include <sound/core.h>
  34 #include <sound/wss.h>
  35 #include <sound/mpu401.h>
  36 #include <sound/initval.h>
  37
  38
  39 MODULE_AUTHOR("Chris Rankin");
  40 MODULE_DESCRIPTION("ENSONIQ SoundScape driver");
  41 MODULE_LICENSE("GPL");
  42 MODULE_FIRMWARE("sndscape.co0");
  43 MODULE_FIRMWARE("sndscape.co1");
  44 MODULE_FIRMWARE("sndscape.co2");
  45 MODULE_FIRMWARE("sndscape.co3");
  46 MODULE_FIRMWARE("sndscape.co4");
  47 MODULE_FIRMWARE("scope.cod");
  48
  49 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  50 static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  51 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
  52 static long wss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
  53 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
  54 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
  55 static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
  56 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
  57 static bool joystick[SNDRV_CARDS];
  58
  59 module_param_array(index, int, NULL, 0444);
  60 MODULE_PARM_DESC(index, "Index number for SoundScape soundcard");
  61
  62 module_param_array(id, charp, NULL, 0444);
  63 MODULE_PARM_DESC(id, "Description for SoundScape card");
  64
  65 module_param_array(port, long, NULL, 0444);
  66 MODULE_PARM_DESC(port, "Port # for SoundScape driver.");
  67
  68 module_param_array(wss_port, long, NULL, 0444);
  69 MODULE_PARM_DESC(wss_port, "WSS Port # for SoundScape driver.");
  70
  71 module_param_array(irq, int, NULL, 0444);
  72 MODULE_PARM_DESC(irq, "IRQ # for SoundScape driver.");
  73
  74 module_param_array(mpu_irq, int, NULL, 0444);
  75 MODULE_PARM_DESC(mpu_irq, "MPU401 IRQ # for SoundScape driver.");
  76
  77 module_param_array(dma, int, NULL, 0444);
  78 MODULE_PARM_DESC(dma, "DMA # for SoundScape driver.");
  79
  80 module_param_array(dma2, int, NULL, 0444);
  81 MODULE_PARM_DESC(dma2, "DMA2 # for SoundScape driver.");
  82
  83 module_param_array(joystick, bool, NULL, 0444);
  84 MODULE_PARM_DESC(joystick, "Enable gameport.");
  85
  86 #ifdef CONFIG_PNP
  87 static int isa_registered;
  88 static int pnp_registered;
  89
  90 static struct pnp_card_device_id sscape_pnpids[] = {
  91         { .id = "ENS3081", .devs = { { "ENS0000" } } }, /* Soundscape PnP */
  92         { .id = "ENS4081", .devs = { { "ENS1011" } } }, /* VIVO90 */
  93         { .id = "" }    /* end */
  94 };
  95
  96 MODULE_DEVICE_TABLE(pnp_card, sscape_pnpids);
  97 #endif
  98
  99
 100 #define HOST_CTRL_IO(i)  ((i) + 2)
 101 #define HOST_DATA_IO(i)  ((i) + 3)
 102 #define ODIE_ADDR_IO(i)  ((i) + 4)
 103 #define ODIE_DATA_IO(i)  ((i) + 5)
 104 #define CODEC_IO(i)      ((i) + 8)
 105
 106 #define IC_ODIE  1
 107 #define IC_OPUS  2
 108
 109 #define RX_READY 0x01
 110 #define TX_READY 0x02
 111
 112 #define CMD_ACK                 0x80
 113 #define CMD_SET_MIDI_VOL        0x84
 114 #define CMD_GET_MIDI_VOL        0x85
 115 #define CMD_XXX_MIDI_VOL        0x86
 116 #define CMD_SET_EXTMIDI         0x8a
 117 #define CMD_GET_EXTMIDI         0x8b
 118 #define CMD_SET_MT32            0x8c
 119 #define CMD_GET_MT32            0x8d
 120
 121 enum GA_REG {
 122         GA_INTSTAT_REG = 0,
 123         GA_INTENA_REG,
 124         GA_DMAA_REG,
 125         GA_DMAB_REG,
 126         GA_INTCFG_REG,
 127         GA_DMACFG_REG,
 128         GA_CDCFG_REG,
 129         GA_SMCFGA_REG,
 130         GA_SMCFGB_REG,
 131         GA_HMCTL_REG
 132 };
 133
 134 #define DMA_8BIT  0x80
 135
 136
 137 enum card_type {
 138         MEDIA_FX,       /* Sequoia S-1000 */
 139         SSCAPE,         /* Sequoia S-2000 */
 140         SSCAPE_PNP,
 141         SSCAPE_VIVO,
 142 };
 143
 144 struct soundscape {
 145         spinlock_t lock;
 146         unsigned io_base;
 147         int ic_type;
 148         enum card_type type;
 149         struct resource *io_res;
 150         struct resource *wss_res;
 151         struct snd_wss *chip;
 152
 153         unsigned char midi_vol;
 154 };
 155
 156 #define INVALID_IRQ  ((unsigned)-1)
 157
 158
 159 static inline struct soundscape *get_card_soundscape(struct snd_card *c)
 160 {
 161         return (struct soundscape *) (c->private_data);
 162 }
 163
 164 /*
 165  * Allocates some kernel memory that we can use for DMA.
 166  * I think this means that the memory has to map to
 167  * contiguous pages of physical memory.
 168  */
 169 static struct snd_dma_buffer *get_dmabuf(struct snd_dma_buffer *buf,
 170                                          unsigned long size)
 171 {
 172         if (buf) {
 173                 if (snd_dma_alloc_pages_fallback(SNDRV_DMA_TYPE_DEV,
 174                                                  snd_dma_isa_data(),
 175                                                  size, buf) < 0) {
 176                         snd_printk(KERN_ERR "sscape: Failed to allocate "
 177                                             "%lu bytes for DMA\n",
 178                                             size);
 179                         return NULL;
 180                 }
 181         }
 182
 183         return buf;
 184 }
 185
 186 /*
 187  * Release the DMA-able kernel memory ...
 188  */
 189 static void free_dmabuf(struct snd_dma_buffer *buf)
 190 {
 191         if (buf && buf->area)
 192                 snd_dma_free_pages(buf);
 193 }
 194
 195 /*
 196  * This function writes to the SoundScape's control registers,
 197  * but doesn't do any locking. It's up to the caller to do that.
 198  * This is why this function is "unsafe" ...
 199  */
 200 static inline void sscape_write_unsafe(unsigned io_base, enum GA_REG reg,
 201                                        unsigned char val)
 202 {
 203         outb(reg, ODIE_ADDR_IO(io_base));
 204         outb(val, ODIE_DATA_IO(io_base));
 205 }
 206
 207 /*
 208  * Write to the SoundScape's control registers, and do the
 209  * necessary locking ...
 210  */
 211 static void sscape_write(struct soundscape *s, enum GA_REG reg,
 212                          unsigned char val)
 213 {
 214         unsigned long flags;
 215
 216         spin_lock_irqsave(&s->lock, flags);
 217         sscape_write_unsafe(s->io_base, reg, val);
 218         spin_unlock_irqrestore(&s->lock, flags);
 219 }
 220
 221 /*
 222  * Read from the SoundScape's control registers, but leave any
 223  * locking to the caller. This is why the function is "unsafe" ...
 224  */
 225 static inline unsigned char sscape_read_unsafe(unsigned io_base,
 226                                                enum GA_REG reg)
 227 {
 228         outb(reg, ODIE_ADDR_IO(io_base));
 229         return inb(ODIE_DATA_IO(io_base));
 230 }
 231
 232 /*
 233  * Puts the SoundScape into "host" mode, as compared to "MIDI" mode
 234  */
 235 static inline void set_host_mode_unsafe(unsigned io_base)
 236 {
 237         outb(0x0, HOST_CTRL_IO(io_base));
 238 }
 239
 240 /*
 241  * Puts the SoundScape into "MIDI" mode, as compared to "host" mode
 242  */
 243 static inline void set_midi_mode_unsafe(unsigned io_base)
 244 {
 245         outb(0x3, HOST_CTRL_IO(io_base));
 246 }
 247
 248 /*
 249  * Read the SoundScape's host-mode control register, but leave
 250  * any locking issues to the caller ...
 251  */
 252 static inline int host_read_unsafe(unsigned io_base)
 253 {
 254         int data = -1;
 255         if ((inb(HOST_CTRL_IO(io_base)) & RX_READY) != 0)
 256                 data = inb(HOST_DATA_IO(io_base));
 257
 258         return data;
 259 }
 260
 261 /*
 262  * Read the SoundScape's host-mode control register, performing
 263  * a limited amount of busy-waiting if the register isn't ready.
 264  * Also leaves all locking-issues to the caller ...
 265  */
 266 static int host_read_ctrl_unsafe(unsigned io_base, unsigned timeout)
 267 {
 268         int data;
 269
 270         while (((data = host_read_unsafe(io_base)) < 0) && (timeout != 0)) {
 271                 udelay(100);
 272                 --timeout;
 273         } /* while */
 274
 275         return data;
 276 }
 277
 278 /*
 279  * Write to the SoundScape's host-mode control registers, but
 280  * leave any locking issues to the caller ...
 281  */
 282 static inline int host_write_unsafe(unsigned io_base, unsigned char data)
 283 {
 284         if ((inb(HOST_CTRL_IO(io_base)) & TX_READY) != 0) {
 285                 outb(data, HOST_DATA_IO(io_base));
 286                 return 1;
 287         }
 288
 289         return 0;
 290 }
 291
 292 /*
 293  * Write to the SoundScape's host-mode control registers, performing
 294  * a limited amount of busy-waiting if the register isn't ready.
 295  * Also leaves all locking-issues to the caller ...
 296  */
 297 static int host_write_ctrl_unsafe(unsigned io_base, unsigned char data,
 298                                   unsigned timeout)
 299 {
 300         int err;
 301
 302         while (!(err = host_write_unsafe(io_base, data)) && (timeout != 0)) {
 303                 udelay(100);
 304                 --timeout;
 305         } /* while */
 306
 307         return err;
 308 }
 309
 310
 311 /*
 312  * Check that the MIDI subsystem is operational. If it isn't,
 313  * then we will hang the computer if we try to use it ...
 314  *
 315  * NOTE: This check is based upon observation, not documentation.
 316  */
 317 static inline int verify_mpu401(const struct snd_mpu401 *mpu)
 318 {
 319         return ((inb(MPU401C(mpu)) & 0xc0) == 0x80);
 320 }
 321
 322 /*
 323  * This is apparently the standard way to initailise an MPU-401
 324  */
 325 static inline void initialise_mpu401(const struct snd_mpu401 *mpu)
 326 {
 327         outb(0, MPU401D(mpu));
 328 }
 329
 330 /*
 331  * Tell the SoundScape to activate the AD1845 chip (I think).
 332  * The AD1845 detection fails if we *don't* do this, so I
 333  * think that this is a good idea ...
 334  */
 335 static void activate_ad1845_unsafe(unsigned io_base)
 336 {
 337         unsigned char val = sscape_read_unsafe(io_base, GA_HMCTL_REG);
 338         sscape_write_unsafe(io_base, GA_HMCTL_REG, (val & 0xcf) | 0x10);
 339         sscape_write_unsafe(io_base, GA_CDCFG_REG, 0x80);
 340 }
 341
 342 /*
 343  * Do the necessary ALSA-level cleanup to deallocate our driver ...
 344  */
 345 static void soundscape_free(struct snd_card *c)
 346 {
 347         struct soundscape *sscape = get_card_soundscape(c);
 348         release_and_free_resource(sscape->io_res);
 349         release_and_free_resource(sscape->wss_res);
 350         free_dma(sscape->chip->dma1);
 351 }
 352
 353 /*
 354  * Tell the SoundScape to begin a DMA tranfer using the given channel.
 355  * All locking issues are left to the caller.
 356  */
 357 static void sscape_start_dma_unsafe(unsigned io_base, enum GA_REG reg)
 358 {
 359         sscape_write_unsafe(io_base, reg,
 360                             sscape_read_unsafe(io_base, reg) | 0x01);
 361         sscape_write_unsafe(io_base, reg,
 362                             sscape_read_unsafe(io_base, reg) & 0xfe);
 363 }
 364
 365 /*
 366  * Wait for a DMA transfer to complete. This is a "limited busy-wait",
 367  * and all locking issues are left to the caller.
 368  */
 369 static int sscape_wait_dma_unsafe(unsigned io_base, enum GA_REG reg,
 370                                   unsigned timeout)
 371 {
 372         while (!(sscape_read_unsafe(io_base, reg) & 0x01) && (timeout != 0)) {
 373                 udelay(100);
 374                 --timeout;
 375         } /* while */
 376
 377         return sscape_read_unsafe(io_base, reg) & 0x01;
 378 }
 379
 380 /*
 381  * Wait for the On-Board Processor to return its start-up
 382  * acknowledgement sequence. This wait is too long for
 383  * us to perform "busy-waiting", and so we must sleep.
 384  * This in turn means that we must not be holding any
 385  * spinlocks when we call this function.
 386  */
 387 static int obp_startup_ack(struct soundscape *s, unsigned timeout)
 388 {
 389         unsigned long end_time = jiffies + msecs_to_jiffies(timeout);
 390
 391         do {
 392                 unsigned long flags;
 393                 int x;
 394
 395                 spin_lock_irqsave(&s->lock, flags);
 396                 x = host_read_unsafe(s->io_base);
 397                 spin_unlock_irqrestore(&s->lock, flags);
 398                 if (x == 0xfe || x == 0xff)
 399                         return 1;
 400
 401                 msleep(10);
 402         } while (time_before(jiffies, end_time));
 403
 404         return 0;
 405 }
 406
 407 /*
 408  * Wait for the host to return its start-up acknowledgement
 409  * sequence. This wait is too long for us to perform
 410  * "busy-waiting", and so we must sleep. This in turn means
 411  * that we must not be holding any spinlocks when we call
 412  * this function.
 413  */
 414 static int host_startup_ack(struct soundscape *s, unsigned timeout)
 415 {
 416         unsigned long end_time = jiffies + msecs_to_jiffies(timeout);
 417
 418         do {
 419                 unsigned long flags;
 420                 int x;
 421
 422                 spin_lock_irqsave(&s->lock, flags);
 423                 x = host_read_unsafe(s->io_base);
 424                 spin_unlock_irqrestore(&s->lock, flags);
 425                 if (x == 0xfe)
 426                         return 1;
 427
 428                 msleep(10);
 429         } while (time_before(jiffies, end_time));
 430
 431         return 0;
 432 }
 433
 434 /*
 435  * Upload a byte-stream into the SoundScape using DMA channel A.
 436  */
 437 static int upload_dma_data(struct soundscape *s, const unsigned char *data,
 438                            size_t size)
 439 {
 440         unsigned long flags;
 441         struct snd_dma_buffer dma;
 442         int ret;
 443         unsigned char val;
 444
 445         if (!get_dmabuf(&dma, PAGE_ALIGN(32 * 1024)))
 446                 return -ENOMEM;
 447
 448         spin_lock_irqsave(&s->lock, flags);
 449
 450         /*
 451          * Reset the board ...
 452          */
 453         val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
 454         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val & 0x3f);
 455
 456         /*
 457          * Enable the DMA channels and configure them ...
 458          */
 459         val = (s->chip->dma1 << 4) | DMA_8BIT;
 460         sscape_write_unsafe(s->io_base, GA_DMAA_REG, val);
 461         sscape_write_unsafe(s->io_base, GA_DMAB_REG, 0x20);
 462
 463         /*
 464          * Take the board out of reset ...
 465          */
 466         val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
 467         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val | 0x80);
 468
 469         /*
 470          * Upload the firmware to the SoundScape
 471          * board through the DMA channel ...
 472          */
 473         while (size != 0) {
 474                 unsigned long len;
 475
 476                 len = min(size, dma.bytes);
 477                 memcpy(dma.area, data, len);
 478                 data += len;
 479                 size -= len;
 480
 481                 snd_dma_program(s->chip->dma1, dma.addr, len, DMA_MODE_WRITE);
 482                 sscape_start_dma_unsafe(s->io_base, GA_DMAA_REG);
 483                 if (!sscape_wait_dma_unsafe(s->io_base, GA_DMAA_REG, 5000)) {
 484                         /*
 485                          * Don't forget to release this spinlock we're holding
 486                          */
 487                         spin_unlock_irqrestore(&s->lock, flags);
 488
 489                         snd_printk(KERN_ERR
 490                                         "sscape: DMA upload has timed out\n");
 491                         ret = -EAGAIN;
 492                         goto _release_dma;
 493                 }
 494         } /* while */
 495
 496         set_host_mode_unsafe(s->io_base);
 497         outb(0x0, s->io_base);
 498
 499         /*
 500          * Boot the board ... (I think)
 501          */
 502         val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
 503         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val | 0x40);
 504         spin_unlock_irqrestore(&s->lock, flags);
 505
 506         /*
 507          * If all has gone well, then the board should acknowledge
 508          * the new upload and tell us that it has rebooted OK. We
 509          * give it 5 seconds (max) ...
 510          */
 511         ret = 0;
 512         if (!obp_startup_ack(s, 5000)) {
 513                 snd_printk(KERN_ERR "sscape: No response "
 514                                     "from on-board processor after upload\n");
 515                 ret = -EAGAIN;
 516         } else if (!host_startup_ack(s, 5000)) {
 517                 snd_printk(KERN_ERR
 518                                 "sscape: SoundScape failed to initialise\n");
 519                 ret = -EAGAIN;
 520         }
 521
 522 _release_dma:
 523         /*
 524          * NOTE!!! We are NOT holding any spinlocks at this point !!!
 525          */
 526         sscape_write(s, GA_DMAA_REG, (s->ic_type == IC_OPUS ? 0x40 : 0x70));
 527         free_dmabuf(&dma);
 528
 529         return ret;
 530 }
 531
 532 /*
 533  * Upload the bootblock(?) into the SoundScape. The only
 534  * purpose of this block of code seems to be to tell
 535  * us which version of the microcode we should be using.
 536  */
 537 static int sscape_upload_bootblock(struct snd_card *card)
 538 {
 539         struct soundscape *sscape = get_card_soundscape(card);
 540         unsigned long flags;
 541         const struct firmware *init_fw = NULL;
 542         int data = 0;
 543         int ret;
 544
 545         ret = request_firmware(&init_fw, "scope.cod", card->dev);
 546         if (ret < 0) {
 547                 snd_printk(KERN_ERR "sscape: Error loading scope.cod");
 548                 return ret;
 549         }
 550         ret = upload_dma_data(sscape, init_fw->data, init_fw->size);
 551
 552         release_firmware(init_fw);
 553
 554         spin_lock_irqsave(&sscape->lock, flags);
 555         if (ret == 0)
 556                 data = host_read_ctrl_unsafe(sscape->io_base, 100);
 557
 558         if (data & 0x10)
 559                 sscape_write_unsafe(sscape->io_base, GA_SMCFGA_REG, 0x2f);
 560
 561         spin_unlock_irqrestore(&sscape->lock, flags);
 562
 563         data &= 0xf;
 564         if (ret == 0 && data > 7) {
 565                 snd_printk(KERN_ERR
 566                                 "sscape: timeout reading firmware version\n");
 567                 ret = -EAGAIN;
 568         }
 569
 570         return (ret == 0) ? data : ret;
 571 }
 572
 573 /*
 574  * Upload the microcode into the SoundScape.
 575  */
 576 static int sscape_upload_microcode(struct snd_card *card, int version)
 577 {
 578         struct soundscape *sscape = get_card_soundscape(card);
 579         const struct firmware *init_fw = NULL;
 580         char name[14];
 581         int err;
 582
 583         snprintf(name, sizeof(name), "sndscape.co%d", version);
 584
 585         err = request_firmware(&init_fw, name, card->dev);
 586         if (err < 0) {
 587                 snd_printk(KERN_ERR "sscape: Error loading sndscape.co%d",
 588                                 version);
 589                 return err;
 590         }
 591         err = upload_dma_data(sscape, init_fw->data, init_fw->size);
 592         if (err == 0)
 593                 snd_printk(KERN_INFO "sscape: MIDI firmware loaded %d KBs\n",
 594                                 init_fw->size >> 10);
 595
 596         release_firmware(init_fw);
 597
 598         return err;
 599 }
 600
 601 /*
 602  * Mixer control for the SoundScape's MIDI device.
 603  */
 604 static int sscape_midi_info(struct snd_kcontrol *ctl,
 605                             struct snd_ctl_elem_info *uinfo)
 606 {
 607         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 608         uinfo->count = 1;
 609         uinfo->value.integer.min = 0;
 610         uinfo->value.integer.max = 127;
 611         return 0;
 612 }
 613
 614 static int sscape_midi_get(struct snd_kcontrol *kctl,
 615                            struct snd_ctl_elem_value *uctl)
 616 {
 617         struct snd_wss *chip = snd_kcontrol_chip(kctl);
 618         struct snd_card *card = chip->card;
 619         register struct soundscape *s = get_card_soundscape(card);
 620         unsigned long flags;
 621
 622         spin_lock_irqsave(&s->lock, flags);
 623         uctl->value.integer.value[0] = s->midi_vol;
 624         spin_unlock_irqrestore(&s->lock, flags);
 625         return 0;
 626 }
 627
 628 static int sscape_midi_put(struct snd_kcontrol *kctl,
 629                            struct snd_ctl_elem_value *uctl)
 630 {
 631         struct snd_wss *chip = snd_kcontrol_chip(kctl);
 632         struct snd_card *card = chip->card;
 633         struct soundscape *s = get_card_soundscape(card);
 634         unsigned long flags;
 635         int change;
 636         unsigned char new_val;
 637
 638         spin_lock_irqsave(&s->lock, flags);
 639
 640         new_val = uctl->value.integer.value[0] & 127;
 641         /*
 642          * We need to put the board into HOST mode before we
 643          * can send any volume-changing HOST commands ...
 644          */
 645         set_host_mode_unsafe(s->io_base);
 646
 647         /*
 648          * To successfully change the MIDI volume setting, you seem to
 649          * have to write a volume command, write the new volume value,
 650          * and then perform another volume-related command. Perhaps the
 651          * first command is an "open" and the second command is a "close"?
 652          */
 653         if (s->midi_vol == new_val) {
 654                 change = 0;
 655                 goto __skip_change;
 656         }
 657         change = host_write_ctrl_unsafe(s->io_base, CMD_SET_MIDI_VOL, 100)
 658                  && host_write_ctrl_unsafe(s->io_base, new_val, 100)
 659                  && host_write_ctrl_unsafe(s->io_base, CMD_XXX_MIDI_VOL, 100)
 660                  && host_write_ctrl_unsafe(s->io_base, new_val, 100);
 661         s->midi_vol = new_val;
 662 __skip_change:
 663
 664         /*
 665          * Take the board out of HOST mode and back into MIDI mode ...
 666          */
 667         set_midi_mode_unsafe(s->io_base);
 668
 669         spin_unlock_irqrestore(&s->lock, flags);
 670         return change;
 671 }
 672
 673 static struct snd_kcontrol_new midi_mixer_ctl = {
 674         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 675         .name = "MIDI",
 676         .info = sscape_midi_info,
 677         .get = sscape_midi_get,
 678         .put = sscape_midi_put
 679 };
 680
 681 /*
 682  * The SoundScape can use two IRQs from a possible set of four.
 683  * These IRQs are encoded as bit patterns so that they can be
 684  * written to the control registers.
 685  */
 686 static unsigned get_irq_config(int sscape_type, int irq)
 687 {
 688         static const int valid_irq[] = { 9, 5, 7, 10 };
 689         static const int old_irq[] = { 9, 7, 5, 15 };
 690         unsigned cfg;
 691
 692         if (sscape_type == MEDIA_FX) {
 693                 for (cfg = 0; cfg < ARRAY_SIZE(old_irq); ++cfg)
 694                         if (irq == old_irq[cfg])
 695                                 return cfg;
 696         } else {
 697                 for (cfg = 0; cfg < ARRAY_SIZE(valid_irq); ++cfg)
 698                         if (irq == valid_irq[cfg])
 699                                 return cfg;
 700         }
 701
 702         return INVALID_IRQ;
 703 }
 704
 705 /*
 706  * Perform certain arcane port-checks to see whether there
 707  * is a SoundScape board lurking behind the given ports.
 708  */
 709 static int detect_sscape(struct soundscape *s, long wss_io)
 710 {
 711         unsigned long flags;
 712         unsigned d;
 713         int retval = 0;
 714
 715         spin_lock_irqsave(&s->lock, flags);
 716
 717         /*
 718          * The following code is lifted from the original OSS driver,
 719          * and as I don't have a datasheet I cannot really comment
 720          * on what it is doing...
 721          */
 722         if ((inb(HOST_CTRL_IO(s->io_base)) & 0x78) != 0)
 723                 goto _done;
 724
 725         d = inb(ODIE_ADDR_IO(s->io_base)) & 0xf0;
 726         if ((d & 0x80) != 0)
 727                 goto _done;
 728
 729         if (d == 0)
 730                 s->ic_type = IC_ODIE;
 731         else if ((d & 0x60) != 0)
 732                 s->ic_type = IC_OPUS;
 733         else
 734                 goto _done;
 735
 736         outb(0xfa, ODIE_ADDR_IO(s->io_base));
 737         if ((inb(ODIE_ADDR_IO(s->io_base)) & 0x9f) != 0x0a)
 738                 goto _done;
 739
 740         outb(0xfe, ODIE_ADDR_IO(s->io_base));
 741         if ((inb(ODIE_ADDR_IO(s->io_base)) & 0x9f) != 0x0e)
 742                 goto _done;
 743
 744         outb(0xfe, ODIE_ADDR_IO(s->io_base));
 745         d = inb(ODIE_DATA_IO(s->io_base));
 746         if (s->type != SSCAPE_VIVO && (d & 0x9f) != 0x0e)
 747                 goto _done;
 748
 749         if (s->ic_type == IC_OPUS)
 750                 activate_ad1845_unsafe(s->io_base);
 751
 752         if (s->type == SSCAPE_VIVO)
 753                 wss_io += 4;
 754
 755         d  = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
 756         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d | 0xc0);
 757
 758         /* wait for WSS codec */
 759         for (d = 0; d < 500; d++) {
 760                 if ((inb(wss_io) & 0x80) == 0)
 761                         break;
 762                 spin_unlock_irqrestore(&s->lock, flags);
 763                 msleep(1);
 764                 spin_lock_irqsave(&s->lock, flags);
 765         }
 766
 767         if ((inb(wss_io) & 0x80) != 0)
 768                 goto _done;
 769
 770         if (inb(wss_io + 2) == 0xff)
 771                 goto _done;
 772
 773         d  = sscape_read_unsafe(s->io_base, GA_HMCTL_REG) & 0x3f;
 774         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d);
 775
 776         if ((inb(wss_io) & 0x80) != 0)
 777                 s->type = MEDIA_FX;
 778
 779         d = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
 780         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d | 0xc0);
 781         /* wait for WSS codec */
 782         for (d = 0; d < 500; d++) {
 783                 if ((inb(wss_io) & 0x80) == 0)
 784                         break;
 785                 spin_unlock_irqrestore(&s->lock, flags);
 786                 msleep(1);
 787                 spin_lock_irqsave(&s->lock, flags);
 788         }
 789
 790         /*
 791          * SoundScape successfully detected!
 792          */
 793         retval = 1;
 794
 795 _done:
 796         spin_unlock_irqrestore(&s->lock, flags);
 797         return retval;
 798 }
 799
 800 /*
 801  * ALSA callback function, called when attempting to open the MIDI device.
 802  * Check that the MIDI firmware has been loaded, because we don't want
 803  * to crash the machine. Also check that someone isn't using the hardware
 804  * IOCTL device.
 805  */
 806 static int mpu401_open(struct snd_mpu401 *mpu)
 807 {
 808         if (!verify_mpu401(mpu)) {
 809                 snd_printk(KERN_ERR "sscape: MIDI disabled, "
 810                                     "please load firmware\n");
 811                 return -ENODEV;
 812         }
 813
 814         return 0;
 815 }
 816
 817 /*
 818  * Initialse an MPU-401 subdevice for MIDI support on the SoundScape.
 819  */
 820 static int create_mpu401(struct snd_card *card, int devnum,
 821                          unsigned long port, int irq)
 822 {
 823         struct soundscape *sscape = get_card_soundscape(card);
 824         struct snd_rawmidi *rawmidi;
 825         int err;
 826
 827         err = snd_mpu401_uart_new(card, devnum, MPU401_HW_MPU401, port,
 828                                   MPU401_INFO_INTEGRATED, irq, &rawmidi);
 829         if (err == 0) {
 830                 struct snd_mpu401 *mpu = rawmidi->private_data;
 831                 mpu->open_input = mpu401_open;
 832                 mpu->open_output = mpu401_open;
 833                 mpu->private_data = sscape;
 834
 835                 initialise_mpu401(mpu);
 836         }
 837
 838         return err;
 839 }
 840
 841
 842 /*
 843  * Create an AD1845 PCM subdevice on the SoundScape. The AD1845
 844  * is very much like a CS4231, with a few extra bits. We will
 845  * try to support at least some of the extra bits by overriding
 846  * some of the CS4231 callback.
 847  */
 848 static int create_ad1845(struct snd_card *card, unsigned port,
 849                          int irq, int dma1, int dma2)
 850 {
 851         register struct soundscape *sscape = get_card_soundscape(card);
 852         struct snd_wss *chip;
 853         int err;
 854         int codec_type = WSS_HW_DETECT;
 855
 856         switch (sscape->type) {
 857         case MEDIA_FX:
 858         case SSCAPE:
 859                 /*
 860                  * There are some freak examples of early Soundscape cards
 861                  * with CS4231 instead of AD1848/CS4248. Unfortunately, the
 862                  * CS4231 works only in CS4248 compatibility mode on
 863                  * these cards so force it.
 864                  */
 865                 if (sscape->ic_type != IC_OPUS)
 866                         codec_type = WSS_HW_AD1848;
 867                 break;
 868
 869         case SSCAPE_VIVO:
 870                 port += 4;
 871                 break;
 872         default:
 873                 break;
 874         }
 875
 876         err = snd_wss_create(card, port, -1, irq, dma1, dma2,
 877                              codec_type, WSS_HWSHARE_DMA1, &chip);
 878         if (!err) {
 879                 unsigned long flags;
 880                 struct snd_pcm *pcm;
 881
 882                 if (sscape->type != SSCAPE_VIVO) {
 883                         /*
 884                          * The input clock frequency on the SoundScape must
 885                          * be 14.31818 MHz, because we must set this register
 886                          * to get the playback to sound correct ...
 887                          */
 888                         snd_wss_mce_up(chip);
 889                         spin_lock_irqsave(&chip->reg_lock, flags);
 890                         snd_wss_out(chip, AD1845_CLOCK, 0x20);
 891                         spin_unlock_irqrestore(&chip->reg_lock, flags);
 892                         snd_wss_mce_down(chip);
 893
 894                 }
 895
 896                 err = snd_wss_pcm(chip, 0, &pcm);
 897                 if (err < 0) {
 898                         snd_printk(KERN_ERR "sscape: No PCM device "
 899                                             "for AD1845 chip\n");
 900                         goto _error;
 901                 }
 902
 903                 err = snd_wss_mixer(chip);
 904                 if (err < 0) {
 905                         snd_printk(KERN_ERR "sscape: No mixer device "
 906                                             "for AD1845 chip\n");
 907                         goto _error;
 908                 }
 909                 if (chip->hardware != WSS_HW_AD1848) {
 910                         err = snd_wss_timer(chip, 0, NULL);
 911                         if (err < 0) {
 912                                 snd_printk(KERN_ERR "sscape: No timer device "
 913                                                     "for AD1845 chip\n");
 914                                 goto _error;
 915                         }
 916                 }
 917
 918                 if (sscape->type != SSCAPE_VIVO) {
 919                         err = snd_ctl_add(card,
 920                                           snd_ctl_new1(&midi_mixer_ctl, chip));
 921                         if (err < 0) {
 922                                 snd_printk(KERN_ERR "sscape: Could not create "
 923                                                     "MIDI mixer control\n");
 924                                 goto _error;
 925                         }
 926                 }
 927
 928                 sscape->chip = chip;
 929         }
 930
 931 _error:
 932         return err;
 933 }
 934
 935
 936 /*
 937  * Create an ALSA soundcard entry for the SoundScape, using
 938  * the given list of port, IRQ and DMA resources.
 939  */
 940 static int create_sscape(int dev, struct snd_card *card)
 941 {
 942         struct soundscape *sscape = get_card_soundscape(card);
 943         unsigned dma_cfg;
 944         unsigned irq_cfg;
 945         unsigned mpu_irq_cfg;
 946         struct resource *io_res;
 947         struct resource *wss_res;
 948         unsigned long flags;
 949         int err;
 950         int val;
 951         const char *name;
 952
 953         /*
 954          * Grab IO ports that we will need to probe so that we
 955          * can detect and control this hardware ...
 956          */
 957         io_res = request_region(port[dev], 8, "SoundScape");
 958         if (!io_res) {
 959                 snd_printk(KERN_ERR
 960                            "sscape: can't grab port 0x%lx\n", port[dev]);
 961                 return -EBUSY;
 962         }
 963         wss_res = NULL;
 964         if (sscape->type == SSCAPE_VIVO) {
 965                 wss_res = request_region(wss_port[dev], 4, "SoundScape");
 966                 if (!wss_res) {
 967                         snd_printk(KERN_ERR "sscape: can't grab port 0x%lx\n",
 968                                             wss_port[dev]);
 969                         err = -EBUSY;
 970                         goto _release_region;
 971                 }
 972         }
 973
 974         /*
 975          * Grab one DMA channel ...
 976          */
 977         err = request_dma(dma[dev], "SoundScape");
 978         if (err < 0) {
 979                 snd_printk(KERN_ERR "sscape: can't grab DMA %d\n", dma[dev]);
 980                 goto _release_region;
 981         }
 982
 983         spin_lock_init(&sscape->lock);
 984         sscape->io_res = io_res;
 985         sscape->wss_res = wss_res;
 986         sscape->io_base = port[dev];
 987
 988         if (!detect_sscape(sscape, wss_port[dev])) {
 989                 printk(KERN_ERR "sscape: hardware not detected at 0x%x\n",
 990                         sscape->io_base);
 991                 err = -ENODEV;
 992                 goto _release_dma;
 993         }
 994
 995         switch (sscape->type) {
 996         case MEDIA_FX:
 997                 name = "MediaFX/SoundFX";
 998                 break;
 999         case SSCAPE:
1000                 name = "Soundscape";
1001                 break;
1002         case SSCAPE_PNP:
1003                 name = "Soundscape PnP";
1004                 break;
1005         case SSCAPE_VIVO:
1006                 name = "Soundscape VIVO";
1007                 break;
1008         default:
1009                 name = "unknown Soundscape";
1010                 break;
1011         }
1012
1013         printk(KERN_INFO "sscape: %s card detected at 0x%x, using IRQ %d, DMA %d\n",
1014                          name, sscape->io_base, irq[dev], dma[dev]);
1015
1016         /*
1017          * Check that the user didn't pass us garbage data ...
1018          */
1019         irq_cfg = get_irq_config(sscape->type, irq[dev]);
1020         if (irq_cfg == INVALID_IRQ) {
1021                 snd_printk(KERN_ERR "sscape: Invalid IRQ %d\n", irq[dev]);
1022                 err = -ENXIO;
1023                 goto _release_dma;
1024         }
1025
1026         mpu_irq_cfg = get_irq_config(sscape->type, mpu_irq[dev]);
1027         if (mpu_irq_cfg == INVALID_IRQ) {
1028                 snd_printk(KERN_ERR "sscape: Invalid IRQ %d\n", mpu_irq[dev]);
1029                 err = -ENXIO;
1030                 goto _release_dma;
1031         }
1032
1033         /*
1034          * Tell the on-board devices where their resources are (I think -
1035          * I can't be sure without a datasheet ... So many magic values!)
1036          */
1037         spin_lock_irqsave(&sscape->lock, flags);
1038
1039         sscape_write_unsafe(sscape->io_base, GA_SMCFGA_REG, 0x2e);
1040         sscape_write_unsafe(sscape->io_base, GA_SMCFGB_REG, 0x00);
1041
1042         /*
1043          * Enable and configure the DMA channels ...
1044          */
1045         sscape_write_unsafe(sscape->io_base, GA_DMACFG_REG, 0x50);
1046         dma_cfg = (sscape->ic_type == IC_OPUS ? 0x40 : 0x70);
1047         sscape_write_unsafe(sscape->io_base, GA_DMAA_REG, dma_cfg);
1048         sscape_write_unsafe(sscape->io_base, GA_DMAB_REG, 0x20);
1049
1050         mpu_irq_cfg |= mpu_irq_cfg << 2;
1051         val = sscape_read_unsafe(sscape->io_base, GA_HMCTL_REG) & 0xF7;
1052         if (joystick[dev])
1053                 val |= 8;
1054         sscape_write_unsafe(sscape->io_base, GA_HMCTL_REG, val | 0x10);
1055         sscape_write_unsafe(sscape->io_base, GA_INTCFG_REG, 0xf0 | mpu_irq_cfg);
1056         sscape_write_unsafe(sscape->io_base,
1057                             GA_CDCFG_REG, 0x09 | DMA_8BIT
1058                             | (dma[dev] << 4) | (irq_cfg << 1));
1059         /*
1060          * Enable the master IRQ ...
1061          */
1062         sscape_write_unsafe(sscape->io_base, GA_INTENA_REG, 0x80);
1063
1064         spin_unlock_irqrestore(&sscape->lock, flags);
1065
1066         /*
1067          * We have now enabled the codec chip, and so we should
1068          * detect the AD1845 device ...
1069          */
1070         err = create_ad1845(card, wss_port[dev], irq[dev],
1071                             dma[dev], dma2[dev]);
1072         if (err < 0) {
1073                 snd_printk(KERN_ERR
1074                                 "sscape: No AD1845 device at 0x%lx, IRQ %d\n",
1075                                 wss_port[dev], irq[dev]);
1076                 goto _release_dma;
1077         }
1078         strcpy(card->driver, "SoundScape");
1079         strcpy(card->shortname, name);
1080         snprintf(card->longname, sizeof(card->longname),
1081                  "%s at 0x%lx, IRQ %d, DMA1 %d, DMA2 %d\n",
1082                  name, sscape->chip->port, sscape->chip->irq,
1083                  sscape->chip->dma1, sscape->chip->dma2);
1084
1085 #define MIDI_DEVNUM  0
1086         if (sscape->type != SSCAPE_VIVO) {
1087                 err = sscape_upload_bootblock(card);
1088                 if (err >= 0)
1089                         err = sscape_upload_microcode(card, err);
1090
1091                 if (err == 0) {
1092                         err = create_mpu401(card, MIDI_DEVNUM, port[dev],
1093                                             mpu_irq[dev]);
1094                         if (err < 0) {
1095                                 snd_printk(KERN_ERR "sscape: Failed to create "
1096                                                 "MPU-401 device at 0x%lx\n",
1097                                                 port[dev]);
1098                                 goto _release_dma;
1099                         }
1100
1101                         /*
1102                          * Initialize mixer
1103                          */
1104                         spin_lock_irqsave(&sscape->lock, flags);
1105                         sscape->midi_vol = 0;
1106                         host_write_ctrl_unsafe(sscape->io_base,
1107                                                 CMD_SET_MIDI_VOL, 100);
1108                         host_write_ctrl_unsafe(sscape->io_base,
1109                                                 sscape->midi_vol, 100);
1110                         host_write_ctrl_unsafe(sscape->io_base,
1111                                                 CMD_XXX_MIDI_VOL, 100);
1112                         host_write_ctrl_unsafe(sscape->io_base,
1113                                                 sscape->midi_vol, 100);
1114                         host_write_ctrl_unsafe(sscape->io_base,
1115                                                 CMD_SET_EXTMIDI, 100);
1116                         host_write_ctrl_unsafe(sscape->io_base,
1117                                                 0, 100);
1118                         host_write_ctrl_unsafe(sscape->io_base, CMD_ACK, 100);
1119
1120                         set_midi_mode_unsafe(sscape->io_base);
1121                         spin_unlock_irqrestore(&sscape->lock, flags);
1122                 }
1123         }
1124
1125         /*
1126          * Now that we have successfully created this sound card,
1127          * it is safe to store the pointer.
1128          * NOTE: we only register the sound card's "destructor"
1129          *       function now that our "constructor" has completed.
1130          */
1131         card->private_free = soundscape_free;
1132
1133         return 0;
1134
1135 _release_dma:
1136         free_dma(dma[dev]);
1137
1138 _release_region:
1139         release_and_free_resource(wss_res);
1140         release_and_free_resource(io_res);
1141
1142         return err;
1143 }
1144
1145
1146 static int snd_sscape_match(struct device *pdev, unsigned int i)
1147 {
1148         /*
1149          * Make sure we were given ALL of the other parameters.
1150          */
1151         if (port[i] == SNDRV_AUTO_PORT)
1152                 return 0;
1153
1154         if (irq[i] == SNDRV_AUTO_IRQ ||
1155             mpu_irq[i] == SNDRV_AUTO_IRQ ||
1156             dma[i] == SNDRV_AUTO_DMA) {
1157                 printk(KERN_INFO
1158                        "sscape: insufficient parameters, "
1159                        "need IO, IRQ, MPU-IRQ and DMA\n");
1160                 return 0;
1161         }
1162
1163         return 1;
1164 }
1165
1166 static int snd_sscape_probe(struct device *pdev, unsigned int dev)
1167 {
1168         struct snd_card *card;
1169         struct soundscape *sscape;
1170         int ret;
1171
1172         ret = snd_card_create(index[dev], id[dev], THIS_MODULE,
1173                               sizeof(struct soundscape), &card);
1174         if (ret < 0)
1175                 return ret;
1176
1177         sscape = get_card_soundscape(card);
1178         sscape->type = SSCAPE;
1179
1180         dma[dev] &= 0x03;
1181         snd_card_set_dev(card, pdev);
1182
1183         ret = create_sscape(dev, card);
1184         if (ret < 0)
1185                 goto _release_card;
1186
1187         ret = snd_card_register(card);
1188         if (ret < 0) {
1189                 snd_printk(KERN_ERR "sscape: Failed to register sound card\n");
1190                 goto _release_card;
1191         }
1192         dev_set_drvdata(pdev, card);
1193         return 0;
1194
1195 _release_card:
1196         snd_card_free(card);
1197         return ret;
1198 }
1199
1200 static int snd_sscape_remove(struct device *devptr, unsigned int dev)
1201 {
1202         snd_card_free(dev_get_drvdata(devptr));
1203         return 0;
1204 }
1205
1206 #define DEV_NAME "sscape"
1207
1208 static struct isa_driver snd_sscape_driver = {
1209         .match          = snd_sscape_match,
1210         .probe          = snd_sscape_probe,
1211         .remove         = snd_sscape_remove,
1212         /* FIXME: suspend/resume */
1213         .driver         = {
1214                 .name   = DEV_NAME
1215         },
1216 };
1217
1218 #ifdef CONFIG_PNP
1219 static inline int get_next_autoindex(int i)
1220 {
1221         while (i < SNDRV_CARDS && port[i] != SNDRV_AUTO_PORT)
1222                 ++i;
1223         return i;
1224 }
1225
1226
1227 static int sscape_pnp_detect(struct pnp_card_link *pcard,
1228                              const struct pnp_card_device_id *pid)
1229 {
1230         static int idx = 0;
1231         struct pnp_dev *dev;
1232         struct snd_card *card;
1233         struct soundscape *sscape;
1234         int ret;
1235
1236         /*
1237          * Allow this function to fail *quietly* if all the ISA PnP
1238          * devices were configured using module parameters instead.
1239          */
1240         idx = get_next_autoindex(idx);
1241         if (idx >= SNDRV_CARDS)
1242                 return -ENOSPC;
1243
1244         /*
1245          * Check that we still have room for another sound card ...
1246          */
1247         dev = pnp_request_card_device(pcard, pid->devs[0].id, NULL);
1248         if (!dev)
1249                 return -ENODEV;
1250
1251         if (!pnp_is_active(dev)) {
1252                 if (pnp_activate_dev(dev) < 0) {
1253                         snd_printk(KERN_INFO "sscape: device is inactive\n");
1254                         return -EBUSY;
1255                 }
1256         }
1257
1258         /*
1259          * Create a new ALSA sound card entry, in anticipation
1260          * of detecting our hardware ...
1261          */
1262         ret = snd_card_create(index[idx], id[idx], THIS_MODULE,
1263                               sizeof(struct soundscape), &card);
1264         if (ret < 0)
1265                 return ret;
1266
1267         sscape = get_card_soundscape(card);
1268
1269         /*
1270          * Identify card model ...
1271          */
1272         if (!strncmp("ENS4081", pid->id, 7))
1273                 sscape->type = SSCAPE_VIVO;
1274         else
1275                 sscape->type = SSCAPE_PNP;
1276
1277         /*
1278          * Read the correct parameters off the ISA PnP bus ...
1279          */
1280         port[idx] = pnp_port_start(dev, 0);
1281         irq[idx] = pnp_irq(dev, 0);
1282         mpu_irq[idx] = pnp_irq(dev, 1);
1283         dma[idx] = pnp_dma(dev, 0) & 0x03;
1284         if (sscape->type == SSCAPE_PNP) {
1285                 dma2[idx] = dma[idx];
1286                 wss_port[idx] = CODEC_IO(port[idx]);
1287         } else {
1288                 wss_port[idx] = pnp_port_start(dev, 1);
1289                 dma2[idx] = pnp_dma(dev, 1);
1290         }
1291         snd_card_set_dev(card, &pcard->card->dev);
1292
1293         ret = create_sscape(idx, card);
1294         if (ret < 0)
1295                 goto _release_card;
1296
1297         ret = snd_card_register(card);
1298         if (ret < 0) {
1299                 snd_printk(KERN_ERR "sscape: Failed to register sound card\n");
1300                 goto _release_card;
1301         }
1302
1303         pnp_set_card_drvdata(pcard, card);
1304         ++idx;
1305         return 0;
1306
1307 _release_card:
1308         snd_card_free(card);
1309         return ret;
1310 }
1311
1312 static void sscape_pnp_remove(struct pnp_card_link *pcard)
1313 {
1314         snd_card_free(pnp_get_card_drvdata(pcard));
1315         pnp_set_card_drvdata(pcard, NULL);
1316 }
1317
1318 static struct pnp_card_driver sscape_pnpc_driver = {
1319         .flags = PNP_DRIVER_RES_DO_NOT_CHANGE,
1320         .name = "sscape",
1321         .id_table = sscape_pnpids,
1322         .probe = sscape_pnp_detect,
1323         .remove = sscape_pnp_remove,
1324 };
1325
1326 #endif /* CONFIG_PNP */
1327
1328 static int __init sscape_init(void)
1329 {
1330         int err;
1331
1332         err = isa_register_driver(&snd_sscape_driver, SNDRV_CARDS);
1333 #ifdef CONFIG_PNP
1334         if (!err)
1335                 isa_registered = 1;
1336
1337         err = pnp_register_card_driver(&sscape_pnpc_driver);
1338         if (!err)
1339                 pnp_registered = 1;
1340
1341         if (isa_registered)
1342                 err = 0;
1343 #endif
1344         return err;
1345 }
1346
1347 static void __exit sscape_exit(void)
1348 {
1349 #ifdef CONFIG_PNP
1350         if (pnp_registered)
1351                 pnp_unregister_card_driver(&sscape_pnpc_driver);
1352         if (isa_registered)
1353 #endif
1354                 isa_unregister_driver(&snd_sscape_driver);
1355 }
1356
1357 module_init(sscape_init);
1358 module_exit(sscape_exit);