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/io.h>
  27 #include <linux/isa.h>
  28 #include <linux/delay.h>
  29 #include <linux/firmware.h>
  30 #include <linux/pnp.h>
  31 #include <linux/spinlock.h>
  32 #include <linux/module.h>
  33 #include <asm/dma.h>
  34 #include <sound/core.h>
  35 #include <sound/wss.h>
  36 #include <sound/mpu401.h>
  37 #include <sound/initval.h>
  38
  39
  40 MODULE_AUTHOR("Chris Rankin");
  41 MODULE_DESCRIPTION("ENSONIQ SoundScape driver");
  42 MODULE_LICENSE("GPL");
  43 MODULE_FIRMWARE("sndscape.co0");
  44 MODULE_FIRMWARE("sndscape.co1");
  45 MODULE_FIRMWARE("sndscape.co2");
  46 MODULE_FIRMWARE("sndscape.co3");
  47 MODULE_FIRMWARE("sndscape.co4");
  48 MODULE_FIRMWARE("scope.cod");
  49
  50 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  51 static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  52 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
  53 static long wss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
  54 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
  55 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
  56 static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
  57 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
  58 static bool joystick[SNDRV_CARDS];
  59
  60 module_param_array(index, int, NULL, 0444);
  61 MODULE_PARM_DESC(index, "Index number for SoundScape soundcard");
  62
  63 module_param_array(id, charp, NULL, 0444);
  64 MODULE_PARM_DESC(id, "Description for SoundScape card");
  65
  66 module_param_hw_array(port, long, ioport, NULL, 0444);
  67 MODULE_PARM_DESC(port, "Port # for SoundScape driver.");
  68
  69 module_param_hw_array(wss_port, long, ioport, NULL, 0444);
  70 MODULE_PARM_DESC(wss_port, "WSS Port # for SoundScape driver.");
  71
  72 module_param_hw_array(irq, int, irq, NULL, 0444);
  73 MODULE_PARM_DESC(irq, "IRQ # for SoundScape driver.");
  74
  75 module_param_hw_array(mpu_irq, int, irq, NULL, 0444);
  76 MODULE_PARM_DESC(mpu_irq, "MPU401 IRQ # for SoundScape driver.");
  77
  78 module_param_hw_array(dma, int, dma, NULL, 0444);
  79 MODULE_PARM_DESC(dma, "DMA # for SoundScape driver.");
  80
  81 module_param_hw_array(dma2, int, dma, NULL, 0444);
  82 MODULE_PARM_DESC(dma2, "DMA2 # for SoundScape driver.");
  83
  84 module_param_array(joystick, bool, NULL, 0444);
  85 MODULE_PARM_DESC(joystick, "Enable gameport.");
  86
  87 #ifdef CONFIG_PNP
  88 static int isa_registered;
  89 static int pnp_registered;
  90
  91 static const struct pnp_card_device_id sscape_pnpids[] = {
  92         { .id = "ENS3081", .devs = { { "ENS0000" } } }, /* Soundscape PnP */
  93         { .id = "ENS4081", .devs = { { "ENS1011" } } }, /* VIVO90 */
  94         { .id = "" }    /* end */
  95 };
  96
  97 MODULE_DEVICE_TABLE(pnp_card, sscape_pnpids);
  98 #endif
  99
 100
 101 #define HOST_CTRL_IO(i)  ((i) + 2)
 102 #define HOST_DATA_IO(i)  ((i) + 3)
 103 #define ODIE_ADDR_IO(i)  ((i) + 4)
 104 #define ODIE_DATA_IO(i)  ((i) + 5)
 105 #define CODEC_IO(i)      ((i) + 8)
 106
 107 #define IC_ODIE  1
 108 #define IC_OPUS  2
 109
 110 #define RX_READY 0x01
 111 #define TX_READY 0x02
 112
 113 #define CMD_ACK                 0x80
 114 #define CMD_SET_MIDI_VOL        0x84
 115 #define CMD_GET_MIDI_VOL        0x85
 116 #define CMD_XXX_MIDI_VOL        0x86
 117 #define CMD_SET_EXTMIDI         0x8a
 118 #define CMD_GET_EXTMIDI         0x8b
 119 #define CMD_SET_MT32            0x8c
 120 #define CMD_GET_MT32            0x8d
 121
 122 enum GA_REG {
 123         GA_INTSTAT_REG = 0,
 124         GA_INTENA_REG,
 125         GA_DMAA_REG,
 126         GA_DMAB_REG,
 127         GA_INTCFG_REG,
 128         GA_DMACFG_REG,
 129         GA_CDCFG_REG,
 130         GA_SMCFGA_REG,
 131         GA_SMCFGB_REG,
 132         GA_HMCTL_REG
 133 };
 134
 135 #define DMA_8BIT  0x80
 136
 137
 138 enum card_type {
 139         MEDIA_FX,       /* Sequoia S-1000 */
 140         SSCAPE,         /* Sequoia S-2000 */
 141         SSCAPE_PNP,
 142         SSCAPE_VIVO,
 143 };
 144
 145 struct soundscape {
 146         spinlock_t lock;
 147         unsigned io_base;
 148         int ic_type;
 149         enum card_type type;
 150         struct resource *io_res;
 151         struct resource *wss_res;
 152         struct snd_wss *chip;
 153
 154         unsigned char midi_vol;
 155 };
 156
 157 #define INVALID_IRQ  ((unsigned)-1)
 158
 159
 160 static inline struct soundscape *get_card_soundscape(struct snd_card *c)
 161 {
 162         return (struct soundscape *) (c->private_data);
 163 }
 164
 165 /*
 166  * Allocates some kernel memory that we can use for DMA.
 167  * I think this means that the memory has to map to
 168  * contiguous pages of physical memory.
 169  */
 170 static struct snd_dma_buffer *get_dmabuf(struct snd_dma_buffer *buf,
 171                                          unsigned long size)
 172 {
 173         if (buf) {
 174                 if (snd_dma_alloc_pages_fallback(SNDRV_DMA_TYPE_DEV,
 175                                                  snd_dma_isa_data(),
 176                                                  size, buf) < 0) {
 177                         snd_printk(KERN_ERR "sscape: Failed to allocate "
 178                                             "%lu bytes for DMA\n",
 179                                             size);
 180                         return NULL;
 181                 }
 182         }
 183
 184         return buf;
 185 }
 186
 187 /*
 188  * Release the DMA-able kernel memory ...
 189  */
 190 static void free_dmabuf(struct snd_dma_buffer *buf)
 191 {
 192         if (buf && buf->area)
 193                 snd_dma_free_pages(buf);
 194 }
 195
 196 /*
 197  * This function writes to the SoundScape's control registers,
 198  * but doesn't do any locking. It's up to the caller to do that.
 199  * This is why this function is "unsafe" ...
 200  */
 201 static inline void sscape_write_unsafe(unsigned io_base, enum GA_REG reg,
 202                                        unsigned char val)
 203 {
 204         outb(reg, ODIE_ADDR_IO(io_base));
 205         outb(val, ODIE_DATA_IO(io_base));
 206 }
 207
 208 /*
 209  * Write to the SoundScape's control registers, and do the
 210  * necessary locking ...
 211  */
 212 static void sscape_write(struct soundscape *s, enum GA_REG reg,
 213                          unsigned char val)
 214 {
 215         unsigned long flags;
 216
 217         spin_lock_irqsave(&s->lock, flags);
 218         sscape_write_unsafe(s->io_base, reg, val);
 219         spin_unlock_irqrestore(&s->lock, flags);
 220 }
 221
 222 /*
 223  * Read from the SoundScape's control registers, but leave any
 224  * locking to the caller. This is why the function is "unsafe" ...
 225  */
 226 static inline unsigned char sscape_read_unsafe(unsigned io_base,
 227                                                enum GA_REG reg)
 228 {
 229         outb(reg, ODIE_ADDR_IO(io_base));
 230         return inb(ODIE_DATA_IO(io_base));
 231 }
 232
 233 /*
 234  * Puts the SoundScape into "host" mode, as compared to "MIDI" mode
 235  */
 236 static inline void set_host_mode_unsafe(unsigned io_base)
 237 {
 238         outb(0x0, HOST_CTRL_IO(io_base));
 239 }
 240
 241 /*
 242  * Puts the SoundScape into "MIDI" mode, as compared to "host" mode
 243  */
 244 static inline void set_midi_mode_unsafe(unsigned io_base)
 245 {
 246         outb(0x3, HOST_CTRL_IO(io_base));
 247 }
 248
 249 /*
 250  * Read the SoundScape's host-mode control register, but leave
 251  * any locking issues to the caller ...
 252  */
 253 static inline int host_read_unsafe(unsigned io_base)
 254 {
 255         int data = -1;
 256         if ((inb(HOST_CTRL_IO(io_base)) & RX_READY) != 0)
 257                 data = inb(HOST_DATA_IO(io_base));
 258
 259         return data;
 260 }
 261
 262 /*
 263  * Read the SoundScape's host-mode control register, performing
 264  * a limited amount of busy-waiting if the register isn't ready.
 265  * Also leaves all locking-issues to the caller ...
 266  */
 267 static int host_read_ctrl_unsafe(unsigned io_base, unsigned timeout)
 268 {
 269         int data;
 270
 271         while (((data = host_read_unsafe(io_base)) < 0) && (timeout != 0)) {
 272                 udelay(100);
 273                 --timeout;
 274         } /* while */
 275
 276         return data;
 277 }
 278
 279 /*
 280  * Write to the SoundScape's host-mode control registers, but
 281  * leave any locking issues to the caller ...
 282  */
 283 static inline int host_write_unsafe(unsigned io_base, unsigned char data)
 284 {
 285         if ((inb(HOST_CTRL_IO(io_base)) & TX_READY) != 0) {
 286                 outb(data, HOST_DATA_IO(io_base));
 287                 return 1;
 288         }
 289
 290         return 0;
 291 }
 292
 293 /*
 294  * Write to the SoundScape's host-mode control registers, performing
 295  * a limited amount of busy-waiting if the register isn't ready.
 296  * Also leaves all locking-issues to the caller ...
 297  */
 298 static int host_write_ctrl_unsafe(unsigned io_base, unsigned char data,
 299                                   unsigned timeout)
 300 {
 301         int err;
 302
 303         while (!(err = host_write_unsafe(io_base, data)) && (timeout != 0)) {
 304                 udelay(100);
 305                 --timeout;
 306         } /* while */
 307
 308         return err;
 309 }
 310
 311
 312 /*
 313  * Check that the MIDI subsystem is operational. If it isn't,
 314  * then we will hang the computer if we try to use it ...
 315  *
 316  * NOTE: This check is based upon observation, not documentation.
 317  */
 318 static inline int verify_mpu401(const struct snd_mpu401 *mpu)
 319 {
 320         return ((inb(MPU401C(mpu)) & 0xc0) == 0x80);
 321 }
 322
 323 /*
 324  * This is apparently the standard way to initailise an MPU-401
 325  */
 326 static inline void initialise_mpu401(const struct snd_mpu401 *mpu)
 327 {
 328         outb(0, MPU401D(mpu));
 329 }
 330
 331 /*
 332  * Tell the SoundScape to activate the AD1845 chip (I think).
 333  * The AD1845 detection fails if we *don't* do this, so I
 334  * think that this is a good idea ...
 335  */
 336 static void activate_ad1845_unsafe(unsigned io_base)
 337 {
 338         unsigned char val = sscape_read_unsafe(io_base, GA_HMCTL_REG);
 339         sscape_write_unsafe(io_base, GA_HMCTL_REG, (val & 0xcf) | 0x10);
 340         sscape_write_unsafe(io_base, GA_CDCFG_REG, 0x80);
 341 }
 342
 343 /*
 344  * Do the necessary ALSA-level cleanup to deallocate our driver ...
 345  */
 346 static void soundscape_free(struct snd_card *c)
 347 {
 348         struct soundscape *sscape = get_card_soundscape(c);
 349         release_and_free_resource(sscape->io_res);
 350         release_and_free_resource(sscape->wss_res);
 351         free_dma(sscape->chip->dma1);
 352 }
 353
 354 /*
 355  * Tell the SoundScape to begin a DMA tranfer using the given channel.
 356  * All locking issues are left to the caller.
 357  */
 358 static void sscape_start_dma_unsafe(unsigned io_base, enum GA_REG reg)
 359 {
 360         sscape_write_unsafe(io_base, reg,
 361                             sscape_read_unsafe(io_base, reg) | 0x01);
 362         sscape_write_unsafe(io_base, reg,
 363                             sscape_read_unsafe(io_base, reg) & 0xfe);
 364 }
 365
 366 /*
 367  * Wait for a DMA transfer to complete. This is a "limited busy-wait",
 368  * and all locking issues are left to the caller.
 369  */
 370 static int sscape_wait_dma_unsafe(unsigned io_base, enum GA_REG reg,
 371                                   unsigned timeout)
 372 {
 373         while (!(sscape_read_unsafe(io_base, reg) & 0x01) && (timeout != 0)) {
 374                 udelay(100);
 375                 --timeout;
 376         } /* while */
 377
 378         return sscape_read_unsafe(io_base, reg) & 0x01;
 379 }
 380
 381 /*
 382  * Wait for the On-Board Processor to return its start-up
 383  * acknowledgement sequence. This wait is too long for
 384  * us to perform "busy-waiting", and so we must sleep.
 385  * This in turn means that we must not be holding any
 386  * spinlocks when we call this function.
 387  */
 388 static int obp_startup_ack(struct soundscape *s, unsigned timeout)
 389 {
 390         unsigned long end_time = jiffies + msecs_to_jiffies(timeout);
 391
 392         do {
 393                 unsigned long flags;
 394                 int x;
 395
 396                 spin_lock_irqsave(&s->lock, flags);
 397                 x = host_read_unsafe(s->io_base);
 398                 spin_unlock_irqrestore(&s->lock, flags);
 399                 if (x == 0xfe || x == 0xff)
 400                         return 1;
 401
 402                 msleep(10);
 403         } while (time_before(jiffies, end_time));
 404
 405         return 0;
 406 }
 407
 408 /*
 409  * Wait for the host to return its start-up acknowledgement
 410  * sequence. This wait is too long for us to perform
 411  * "busy-waiting", and so we must sleep. This in turn means
 412  * that we must not be holding any spinlocks when we call
 413  * this function.
 414  */
 415 static int host_startup_ack(struct soundscape *s, unsigned timeout)
 416 {
 417         unsigned long end_time = jiffies + msecs_to_jiffies(timeout);
 418
 419         do {
 420                 unsigned long flags;
 421                 int x;
 422
 423                 spin_lock_irqsave(&s->lock, flags);
 424                 x = host_read_unsafe(s->io_base);
 425                 spin_unlock_irqrestore(&s->lock, flags);
 426                 if (x == 0xfe)
 427                         return 1;
 428
 429                 msleep(10);
 430         } while (time_before(jiffies, end_time));
 431
 432         return 0;
 433 }
 434
 435 /*
 436  * Upload a byte-stream into the SoundScape using DMA channel A.
 437  */
 438 static int upload_dma_data(struct soundscape *s, const unsigned char *data,
 439                            size_t size)
 440 {
 441         unsigned long flags;
 442         struct snd_dma_buffer dma;
 443         int ret;
 444         unsigned char val;
 445
 446         if (!get_dmabuf(&dma, PAGE_ALIGN(32 * 1024)))
 447                 return -ENOMEM;
 448
 449         spin_lock_irqsave(&s->lock, flags);
 450
 451         /*
 452          * Reset the board ...
 453          */
 454         val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
 455         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val & 0x3f);
 456
 457         /*
 458          * Enable the DMA channels and configure them ...
 459          */
 460         val = (s->chip->dma1 << 4) | DMA_8BIT;
 461         sscape_write_unsafe(s->io_base, GA_DMAA_REG, val);
 462         sscape_write_unsafe(s->io_base, GA_DMAB_REG, 0x20);
 463
 464         /*
 465          * Take the board out of reset ...
 466          */
 467         val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
 468         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val | 0x80);
 469
 470         /*
 471          * Upload the firmware to the SoundScape
 472          * board through the DMA channel ...
 473          */
 474         while (size != 0) {
 475                 unsigned long len;
 476
 477                 len = min(size, dma.bytes);
 478                 memcpy(dma.area, data, len);
 479                 data += len;
 480                 size -= len;
 481
 482                 snd_dma_program(s->chip->dma1, dma.addr, len, DMA_MODE_WRITE);
 483                 sscape_start_dma_unsafe(s->io_base, GA_DMAA_REG);
 484                 if (!sscape_wait_dma_unsafe(s->io_base, GA_DMAA_REG, 5000)) {
 485                         /*
 486                          * Don't forget to release this spinlock we're holding
 487                          */
 488                         spin_unlock_irqrestore(&s->lock, flags);
 489
 490                         snd_printk(KERN_ERR
 491                                         "sscape: DMA upload has timed out\n");
 492                         ret = -EAGAIN;
 493                         goto _release_dma;
 494                 }
 495         } /* while */
 496
 497         set_host_mode_unsafe(s->io_base);
 498         outb(0x0, s->io_base);
 499
 500         /*
 501          * Boot the board ... (I think)
 502          */
 503         val = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
 504         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, val | 0x40);
 505         spin_unlock_irqrestore(&s->lock, flags);
 506
 507         /*
 508          * If all has gone well, then the board should acknowledge
 509          * the new upload and tell us that it has rebooted OK. We
 510          * give it 5 seconds (max) ...
 511          */
 512         ret = 0;
 513         if (!obp_startup_ack(s, 5000)) {
 514                 snd_printk(KERN_ERR "sscape: No response "
 515                                     "from on-board processor after upload\n");
 516                 ret = -EAGAIN;
 517         } else if (!host_startup_ack(s, 5000)) {
 518                 snd_printk(KERN_ERR
 519                                 "sscape: SoundScape failed to initialise\n");
 520                 ret = -EAGAIN;
 521         }
 522
 523 _release_dma:
 524         /*
 525          * NOTE!!! We are NOT holding any spinlocks at this point !!!
 526          */
 527         sscape_write(s, GA_DMAA_REG, (s->ic_type == IC_OPUS ? 0x40 : 0x70));
 528         free_dmabuf(&dma);
 529
 530         return ret;
 531 }
 532
 533 /*
 534  * Upload the bootblock(?) into the SoundScape. The only
 535  * purpose of this block of code seems to be to tell
 536  * us which version of the microcode we should be using.
 537  */
 538 static int sscape_upload_bootblock(struct snd_card *card)
 539 {
 540         struct soundscape *sscape = get_card_soundscape(card);
 541         unsigned long flags;
 542         const struct firmware *init_fw = NULL;
 543         int data = 0;
 544         int ret;
 545
 546         ret = request_firmware(&init_fw, "scope.cod", card->dev);
 547         if (ret < 0) {
 548                 snd_printk(KERN_ERR "sscape: Error loading scope.cod");
 549                 return ret;
 550         }
 551         ret = upload_dma_data(sscape, init_fw->data, init_fw->size);
 552
 553         release_firmware(init_fw);
 554
 555         spin_lock_irqsave(&sscape->lock, flags);
 556         if (ret == 0)
 557                 data = host_read_ctrl_unsafe(sscape->io_base, 100);
 558
 559         if (data & 0x10)
 560                 sscape_write_unsafe(sscape->io_base, GA_SMCFGA_REG, 0x2f);
 561
 562         spin_unlock_irqrestore(&sscape->lock, flags);
 563
 564         data &= 0xf;
 565         if (ret == 0 && data > 7) {
 566                 snd_printk(KERN_ERR
 567                                 "sscape: timeout reading firmware version\n");
 568                 ret = -EAGAIN;
 569         }
 570
 571         return (ret == 0) ? data : ret;
 572 }
 573
 574 /*
 575  * Upload the microcode into the SoundScape.
 576  */
 577 static int sscape_upload_microcode(struct snd_card *card, int version)
 578 {
 579         struct soundscape *sscape = get_card_soundscape(card);
 580         const struct firmware *init_fw = NULL;
 581         char name[14];
 582         int err;
 583
 584         snprintf(name, sizeof(name), "sndscape.co%d", version);
 585
 586         err = request_firmware(&init_fw, name, card->dev);
 587         if (err < 0) {
 588                 snd_printk(KERN_ERR "sscape: Error loading sndscape.co%d",
 589                                 version);
 590                 return err;
 591         }
 592         err = upload_dma_data(sscape, init_fw->data, init_fw->size);
 593         if (err == 0)
 594                 snd_printk(KERN_INFO "sscape: MIDI firmware loaded %zu KBs\n",
 595                                 init_fw->size >> 10);
 596
 597         release_firmware(init_fw);
 598
 599         return err;
 600 }
 601
 602 /*
 603  * Mixer control for the SoundScape's MIDI device.
 604  */
 605 static int sscape_midi_info(struct snd_kcontrol *ctl,
 606                             struct snd_ctl_elem_info *uinfo)
 607 {
 608         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 609         uinfo->count = 1;
 610         uinfo->value.integer.min = 0;
 611         uinfo->value.integer.max = 127;
 612         return 0;
 613 }
 614
 615 static int sscape_midi_get(struct snd_kcontrol *kctl,
 616                            struct snd_ctl_elem_value *uctl)
 617 {
 618         struct snd_wss *chip = snd_kcontrol_chip(kctl);
 619         struct snd_card *card = chip->card;
 620         register struct soundscape *s = get_card_soundscape(card);
 621         unsigned long flags;
 622
 623         spin_lock_irqsave(&s->lock, flags);
 624         uctl->value.integer.value[0] = s->midi_vol;
 625         spin_unlock_irqrestore(&s->lock, flags);
 626         return 0;
 627 }
 628
 629 static int sscape_midi_put(struct snd_kcontrol *kctl,
 630                            struct snd_ctl_elem_value *uctl)
 631 {
 632         struct snd_wss *chip = snd_kcontrol_chip(kctl);
 633         struct snd_card *card = chip->card;
 634         struct soundscape *s = get_card_soundscape(card);
 635         unsigned long flags;
 636         int change;
 637         unsigned char new_val;
 638
 639         spin_lock_irqsave(&s->lock, flags);
 640
 641         new_val = uctl->value.integer.value[0] & 127;
 642         /*
 643          * We need to put the board into HOST mode before we
 644          * can send any volume-changing HOST commands ...
 645          */
 646         set_host_mode_unsafe(s->io_base);
 647
 648         /*
 649          * To successfully change the MIDI volume setting, you seem to
 650          * have to write a volume command, write the new volume value,
 651          * and then perform another volume-related command. Perhaps the
 652          * first command is an "open" and the second command is a "close"?
 653          */
 654         if (s->midi_vol == new_val) {
 655                 change = 0;
 656                 goto __skip_change;
 657         }
 658         change = host_write_ctrl_unsafe(s->io_base, CMD_SET_MIDI_VOL, 100)
 659                  && host_write_ctrl_unsafe(s->io_base, new_val, 100)
 660                  && host_write_ctrl_unsafe(s->io_base, CMD_XXX_MIDI_VOL, 100)
 661                  && host_write_ctrl_unsafe(s->io_base, new_val, 100);
 662         s->midi_vol = new_val;
 663 __skip_change:
 664
 665         /*
 666          * Take the board out of HOST mode and back into MIDI mode ...
 667          */
 668         set_midi_mode_unsafe(s->io_base);
 669
 670         spin_unlock_irqrestore(&s->lock, flags);
 671         return change;
 672 }
 673
 674 static const struct snd_kcontrol_new midi_mixer_ctl = {
 675         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 676         .name = "MIDI",
 677         .info = sscape_midi_info,
 678         .get = sscape_midi_get,
 679         .put = sscape_midi_put
 680 };
 681
 682 /*
 683  * The SoundScape can use two IRQs from a possible set of four.
 684  * These IRQs are encoded as bit patterns so that they can be
 685  * written to the control registers.
 686  */
 687 static unsigned get_irq_config(int sscape_type, int irq)
 688 {
 689         static const int valid_irq[] = { 9, 5, 7, 10 };
 690         static const int old_irq[] = { 9, 7, 5, 15 };
 691         unsigned cfg;
 692
 693         if (sscape_type == MEDIA_FX) {
 694                 for (cfg = 0; cfg < ARRAY_SIZE(old_irq); ++cfg)
 695                         if (irq == old_irq[cfg])
 696                                 return cfg;
 697         } else {
 698                 for (cfg = 0; cfg < ARRAY_SIZE(valid_irq); ++cfg)
 699                         if (irq == valid_irq[cfg])
 700                                 return cfg;
 701         }
 702
 703         return INVALID_IRQ;
 704 }
 705
 706 /*
 707  * Perform certain arcane port-checks to see whether there
 708  * is a SoundScape board lurking behind the given ports.
 709  */
 710 static int detect_sscape(struct soundscape *s, long wss_io)
 711 {
 712         unsigned long flags;
 713         unsigned d;
 714         int retval = 0;
 715
 716         spin_lock_irqsave(&s->lock, flags);
 717
 718         /*
 719          * The following code is lifted from the original OSS driver,
 720          * and as I don't have a datasheet I cannot really comment
 721          * on what it is doing...
 722          */
 723         if ((inb(HOST_CTRL_IO(s->io_base)) & 0x78) != 0)
 724                 goto _done;
 725
 726         d = inb(ODIE_ADDR_IO(s->io_base)) & 0xf0;
 727         if ((d & 0x80) != 0)
 728                 goto _done;
 729
 730         if (d == 0)
 731                 s->ic_type = IC_ODIE;
 732         else if ((d & 0x60) != 0)
 733                 s->ic_type = IC_OPUS;
 734         else
 735                 goto _done;
 736
 737         outb(0xfa, ODIE_ADDR_IO(s->io_base));
 738         if ((inb(ODIE_ADDR_IO(s->io_base)) & 0x9f) != 0x0a)
 739                 goto _done;
 740
 741         outb(0xfe, ODIE_ADDR_IO(s->io_base));
 742         if ((inb(ODIE_ADDR_IO(s->io_base)) & 0x9f) != 0x0e)
 743                 goto _done;
 744
 745         outb(0xfe, ODIE_ADDR_IO(s->io_base));
 746         d = inb(ODIE_DATA_IO(s->io_base));
 747         if (s->type != SSCAPE_VIVO && (d & 0x9f) != 0x0e)
 748                 goto _done;
 749
 750         if (s->ic_type == IC_OPUS)
 751                 activate_ad1845_unsafe(s->io_base);
 752
 753         if (s->type == SSCAPE_VIVO)
 754                 wss_io += 4;
 755
 756         d  = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
 757         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d | 0xc0);
 758
 759         /* wait for WSS codec */
 760         for (d = 0; d < 500; d++) {
 761                 if ((inb(wss_io) & 0x80) == 0)
 762                         break;
 763                 spin_unlock_irqrestore(&s->lock, flags);
 764                 msleep(1);
 765                 spin_lock_irqsave(&s->lock, flags);
 766         }
 767
 768         if ((inb(wss_io) & 0x80) != 0)
 769                 goto _done;
 770
 771         if (inb(wss_io + 2) == 0xff)
 772                 goto _done;
 773
 774         d  = sscape_read_unsafe(s->io_base, GA_HMCTL_REG) & 0x3f;
 775         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d);
 776
 777         if ((inb(wss_io) & 0x80) != 0)
 778                 s->type = MEDIA_FX;
 779
 780         d = sscape_read_unsafe(s->io_base, GA_HMCTL_REG);
 781         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d | 0xc0);
 782         /* wait for WSS codec */
 783         for (d = 0; d < 500; d++) {
 784                 if ((inb(wss_io) & 0x80) == 0)
 785                         break;
 786                 spin_unlock_irqrestore(&s->lock, flags);
 787                 msleep(1);
 788                 spin_lock_irqsave(&s->lock, flags);
 789         }
 790
 791         /*
 792          * SoundScape successfully detected!
 793          */
 794         retval = 1;
 795
 796 _done:
 797         spin_unlock_irqrestore(&s->lock, flags);
 798         return retval;
 799 }
 800
 801 /*
 802  * ALSA callback function, called when attempting to open the MIDI device.
 803  * Check that the MIDI firmware has been loaded, because we don't want
 804  * to crash the machine. Also check that someone isn't using the hardware
 805  * IOCTL device.
 806  */
 807 static int mpu401_open(struct snd_mpu401 *mpu)
 808 {
 809         if (!verify_mpu401(mpu)) {
 810                 snd_printk(KERN_ERR "sscape: MIDI disabled, "
 811                                     "please load firmware\n");
 812                 return -ENODEV;
 813         }
 814
 815         return 0;
 816 }
 817
 818 /*
 819  * Initialse an MPU-401 subdevice for MIDI support on the SoundScape.
 820  */
 821 static int create_mpu401(struct snd_card *card, int devnum,
 822                          unsigned long port, int irq)
 823 {
 824         struct soundscape *sscape = get_card_soundscape(card);
 825         struct snd_rawmidi *rawmidi;
 826         int err;
 827
 828         err = snd_mpu401_uart_new(card, devnum, MPU401_HW_MPU401, port,
 829                                   MPU401_INFO_INTEGRATED, irq, &rawmidi);
 830         if (err == 0) {
 831                 struct snd_mpu401 *mpu = rawmidi->private_data;
 832                 mpu->open_input = mpu401_open;
 833                 mpu->open_output = mpu401_open;
 834                 mpu->private_data = sscape;
 835
 836                 initialise_mpu401(mpu);
 837         }
 838
 839         return err;
 840 }
 841
 842
 843 /*
 844  * Create an AD1845 PCM subdevice on the SoundScape. The AD1845
 845  * is very much like a CS4231, with a few extra bits. We will
 846  * try to support at least some of the extra bits by overriding
 847  * some of the CS4231 callback.
 848  */
 849 static int create_ad1845(struct snd_card *card, unsigned port,
 850                          int irq, int dma1, int dma2)
 851 {
 852         register struct soundscape *sscape = get_card_soundscape(card);
 853         struct snd_wss *chip;
 854         int err;
 855         int codec_type = WSS_HW_DETECT;
 856
 857         switch (sscape->type) {
 858         case MEDIA_FX:
 859         case SSCAPE:
 860                 /*
 861                  * There are some freak examples of early Soundscape cards
 862                  * with CS4231 instead of AD1848/CS4248. Unfortunately, the
 863                  * CS4231 works only in CS4248 compatibility mode on
 864                  * these cards so force it.
 865                  */
 866                 if (sscape->ic_type != IC_OPUS)
 867                         codec_type = WSS_HW_AD1848;
 868                 break;
 869
 870         case SSCAPE_VIVO:
 871                 port += 4;
 872                 break;
 873         default:
 874                 break;
 875         }
 876
 877         err = snd_wss_create(card, port, -1, irq, dma1, dma2,
 878                              codec_type, WSS_HWSHARE_DMA1, &chip);
 879         if (!err) {
 880                 unsigned long flags;
 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);
 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);
 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_new(pdev, 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
1182         ret = create_sscape(dev, card);
1183         if (ret < 0)
1184                 goto _release_card;
1185
1186         ret = snd_card_register(card);
1187         if (ret < 0) {
1188                 snd_printk(KERN_ERR "sscape: Failed to register sound card\n");
1189                 goto _release_card;
1190         }
1191         dev_set_drvdata(pdev, card);
1192         return 0;
1193
1194 _release_card:
1195         snd_card_free(card);
1196         return ret;
1197 }
1198
1199 static int snd_sscape_remove(struct device *devptr, unsigned int dev)
1200 {
1201         snd_card_free(dev_get_drvdata(devptr));
1202         return 0;
1203 }
1204
1205 #define DEV_NAME "sscape"
1206
1207 static struct isa_driver snd_sscape_driver = {
1208         .match          = snd_sscape_match,
1209         .probe          = snd_sscape_probe,
1210         .remove         = snd_sscape_remove,
1211         /* FIXME: suspend/resume */
1212         .driver         = {
1213                 .name   = DEV_NAME
1214         },
1215 };
1216
1217 #ifdef CONFIG_PNP
1218 static inline int get_next_autoindex(int i)
1219 {
1220         while (i < SNDRV_CARDS && port[i] != SNDRV_AUTO_PORT)
1221                 ++i;
1222         return i;
1223 }
1224
1225
1226 static int sscape_pnp_detect(struct pnp_card_link *pcard,
1227                              const struct pnp_card_device_id *pid)
1228 {
1229         static int idx = 0;
1230         struct pnp_dev *dev;
1231         struct snd_card *card;
1232         struct soundscape *sscape;
1233         int ret;
1234
1235         /*
1236          * Allow this function to fail *quietly* if all the ISA PnP
1237          * devices were configured using module parameters instead.
1238          */
1239         idx = get_next_autoindex(idx);
1240         if (idx >= SNDRV_CARDS)
1241                 return -ENOSPC;
1242
1243         /*
1244          * Check that we still have room for another sound card ...
1245          */
1246         dev = pnp_request_card_device(pcard, pid->devs[0].id, NULL);
1247         if (!dev)
1248                 return -ENODEV;
1249
1250         if (!pnp_is_active(dev)) {
1251                 if (pnp_activate_dev(dev) < 0) {
1252                         snd_printk(KERN_INFO "sscape: device is inactive\n");
1253                         return -EBUSY;
1254                 }
1255         }
1256
1257         /*
1258          * Create a new ALSA sound card entry, in anticipation
1259          * of detecting our hardware ...
1260          */
1261         ret = snd_card_new(&pcard->card->dev,
1262                            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
1292         ret = create_sscape(idx, card);
1293         if (ret < 0)
1294                 goto _release_card;
1295
1296         ret = snd_card_register(card);
1297         if (ret < 0) {
1298                 snd_printk(KERN_ERR "sscape: Failed to register sound card\n");
1299                 goto _release_card;
1300         }
1301
1302         pnp_set_card_drvdata(pcard, card);
1303         ++idx;
1304         return 0;
1305
1306 _release_card:
1307         snd_card_free(card);
1308         return ret;
1309 }
1310
1311 static void sscape_pnp_remove(struct pnp_card_link *pcard)
1312 {
1313         snd_card_free(pnp_get_card_drvdata(pcard));
1314         pnp_set_card_drvdata(pcard, NULL);
1315 }
1316
1317 static struct pnp_card_driver sscape_pnpc_driver = {
1318         .flags = PNP_DRIVER_RES_DO_NOT_CHANGE,
1319         .name = "sscape",
1320         .id_table = sscape_pnpids,
1321         .probe = sscape_pnp_detect,
1322         .remove = sscape_pnp_remove,
1323 };
1324
1325 #endif /* CONFIG_PNP */
1326
1327 static int __init sscape_init(void)
1328 {
1329         int err;
1330
1331         err = isa_register_driver(&snd_sscape_driver, SNDRV_CARDS);
1332 #ifdef CONFIG_PNP
1333         if (!err)
1334                 isa_registered = 1;
1335
1336         err = pnp_register_card_driver(&sscape_pnpc_driver);
1337         if (!err)
1338                 pnp_registered = 1;
1339
1340         if (isa_registered)
1341                 err = 0;
1342 #endif
1343         return err;
1344 }
1345
1346 static void __exit sscape_exit(void)
1347 {
1348 #ifdef CONFIG_PNP
1349         if (pnp_registered)
1350                 pnp_unregister_card_driver(&sscape_pnpc_driver);
1351         if (isa_registered)
1352 #endif
1353                 isa_unregister_driver(&snd_sscape_driver);
1354 }
1355
1356 module_init(sscape_init);
1357 module_exit(sscape_exit);