SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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/moduleparam.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] __devinitdata = SNDRV_DEFAULT_IDX;
  50 static char* id[SNDRV_CARDS] __devinitdata = SNDRV_DEFAULT_STR;
  51 static long port[SNDRV_CARDS] __devinitdata = SNDRV_DEFAULT_PORT;
  52 static long wss_port[SNDRV_CARDS] __devinitdata = SNDRV_DEFAULT_PORT;
  53 static int irq[SNDRV_CARDS] __devinitdata = SNDRV_DEFAULT_IRQ;
  54 static int mpu_irq[SNDRV_CARDS] __devinitdata = SNDRV_DEFAULT_IRQ;
  55 static int dma[SNDRV_CARDS] __devinitdata = SNDRV_DEFAULT_DMA;
  56 static int dma2[SNDRV_CARDS] __devinitdata = SNDRV_DEFAULT_DMA;
  57
  58 module_param_array(index, int, NULL, 0444);
  59 MODULE_PARM_DESC(index, "Index number for SoundScape soundcard");
  60
  61 module_param_array(id, charp, NULL, 0444);
  62 MODULE_PARM_DESC(id, "Description for SoundScape card");
  63
  64 module_param_array(port, long, NULL, 0444);
  65 MODULE_PARM_DESC(port, "Port # for SoundScape driver.");
  66
  67 module_param_array(wss_port, long, NULL, 0444);
  68 MODULE_PARM_DESC(wss_port, "WSS Port # for SoundScape driver.");
  69
  70 module_param_array(irq, int, NULL, 0444);
  71 MODULE_PARM_DESC(irq, "IRQ # for SoundScape driver.");
  72
  73 module_param_array(mpu_irq, int, NULL, 0444);
  74 MODULE_PARM_DESC(mpu_irq, "MPU401 IRQ # for SoundScape driver.");
  75
  76 module_param_array(dma, int, NULL, 0444);
  77 MODULE_PARM_DESC(dma, "DMA # for SoundScape driver.");
  78
  79 module_param_array(dma2, int, NULL, 0444);
  80 MODULE_PARM_DESC(dma2, "DMA2 # for SoundScape driver.");
  81
  82 #ifdef CONFIG_PNP
  83 static int isa_registered;
  84 static int pnp_registered;
  85
  86 static struct pnp_card_device_id sscape_pnpids[] = {
  87         { .id = "ENS3081", .devs = { { "ENS0000" } } }, /* Soundscape PnP */
  88         { .id = "ENS4081", .devs = { { "ENS1011" } } }, /* VIVO90 */
  89         { .id = "" }    /* end */
  90 };
  91
  92 MODULE_DEVICE_TABLE(pnp_card, sscape_pnpids);
  93 #endif
  94
  95
  96 #define HOST_CTRL_IO(i)  ((i) + 2)
  97 #define HOST_DATA_IO(i)  ((i) + 3)
  98 #define ODIE_ADDR_IO(i)  ((i) + 4)
  99 #define ODIE_DATA_IO(i)  ((i) + 5)
 100 #define CODEC_IO(i)      ((i) + 8)
 101
 102 #define IC_ODIE  1
 103 #define IC_OPUS  2
 104
 105 #define RX_READY 0x01
 106 #define TX_READY 0x02
 107
 108 #define CMD_ACK           0x80
 109 #define CMD_SET_MIDI_VOL  0x84
 110 #define CMD_GET_MIDI_VOL  0x85
 111 #define CMD_XXX_MIDI_VOL  0x86
 112 #define CMD_SET_EXTMIDI   0x8a
 113 #define CMD_GET_EXTMIDI   0x8b
 114 #define CMD_SET_MT32      0x8c
 115 #define CMD_GET_MT32      0x8d
 116
 117 enum GA_REG {
 118         GA_INTSTAT_REG = 0,
 119         GA_INTENA_REG,
 120         GA_DMAA_REG,
 121         GA_DMAB_REG,
 122         GA_INTCFG_REG,
 123         GA_DMACFG_REG,
 124         GA_CDCFG_REG,
 125         GA_SMCFGA_REG,
 126         GA_SMCFGB_REG,
 127         GA_HMCTL_REG
 128 };
 129
 130 #define DMA_8BIT  0x80
 131
 132
 133 enum card_type {
 134         MEDIA_FX,       /* Sequoia S-1000 */
 135         SSCAPE,         /* Sequoia S-2000 */
 136         SSCAPE_PNP,
 137         SSCAPE_VIVO,
 138 };
 139
 140 struct soundscape {
 141         spinlock_t lock;
 142         unsigned io_base;
 143         int ic_type;
 144         enum card_type type;
 145         struct resource *io_res;
 146         struct resource *wss_res;
 147         struct snd_wss *chip;
 148         struct snd_mpu401 *mpu;
 149
 150         unsigned char midi_vol;
 151 };
 152
 153 #define INVALID_IRQ  ((unsigned)-1)
 154
 155
 156 static inline struct soundscape *get_card_soundscape(struct snd_card *c)
 157 {
 158         return (struct soundscape *) (c->private_data);
 159 }
 160
 161 /*
 162  * Allocates some kernel memory that we can use for DMA.
 163  * I think this means that the memory has to map to
 164  * contiguous pages of physical memory.
 165  */
 166 static struct snd_dma_buffer *get_dmabuf(struct snd_dma_buffer *buf, unsigned long size)
 167 {
 168         if (buf) {
 169                 if (snd_dma_alloc_pages_fallback(SNDRV_DMA_TYPE_DEV, snd_dma_isa_data(),
 170                                                  size, buf) < 0) {
 171                         snd_printk(KERN_ERR "sscape: Failed to allocate "
 172                                             "%lu bytes for DMA\n",
 173                                             size);
 174                         return NULL;
 175                 }
 176         }
 177
 178         return buf;
 179 }
 180
 181 /*
 182  * Release the DMA-able kernel memory ...
 183  */
 184 static void free_dmabuf(struct snd_dma_buffer *buf)
 185 {
 186         if (buf && buf->area)
 187                 snd_dma_free_pages(buf);
 188 }
 189
 190
 191 /*
 192  * This function writes to the SoundScape's control registers,
 193  * but doesn't do any locking. It's up to the caller to do that.
 194  * This is why this function is "unsafe" ...
 195  */
 196 static inline void sscape_write_unsafe(unsigned io_base, enum GA_REG reg, unsigned char val)
 197 {
 198         outb(reg, ODIE_ADDR_IO(io_base));
 199         outb(val, ODIE_DATA_IO(io_base));
 200 }
 201
 202 /*
 203  * Write to the SoundScape's control registers, and do the
 204  * necessary locking ...
 205  */
 206 static void sscape_write(struct soundscape *s, enum GA_REG reg, unsigned char val)
 207 {
 208         unsigned long flags;
 209
 210         spin_lock_irqsave(&s->lock, flags);
 211         sscape_write_unsafe(s->io_base, reg, val);
 212         spin_unlock_irqrestore(&s->lock, flags);
 213 }
 214
 215 /*
 216  * Read from the SoundScape's control registers, but leave any
 217  * locking to the caller. This is why the function is "unsafe" ...
 218  */
 219 static inline unsigned char sscape_read_unsafe(unsigned io_base, enum GA_REG reg)
 220 {
 221         outb(reg, ODIE_ADDR_IO(io_base));
 222         return inb(ODIE_DATA_IO(io_base));
 223 }
 224
 225 /*
 226  * Puts the SoundScape into "host" mode, as compared to "MIDI" mode
 227  */
 228 static inline void set_host_mode_unsafe(unsigned io_base)
 229 {
 230         outb(0x0, HOST_CTRL_IO(io_base));
 231 }
 232
 233 /*
 234  * Puts the SoundScape into "MIDI" mode, as compared to "host" mode
 235  */
 236 static inline void set_midi_mode_unsafe(unsigned io_base)
 237 {
 238         outb(0x3, HOST_CTRL_IO(io_base));
 239 }
 240
 241 /*
 242  * Read the SoundScape's host-mode control register, but leave
 243  * any locking issues to the caller ...
 244  */
 245 static inline int host_read_unsafe(unsigned io_base)
 246 {
 247         int data = -1;
 248         if ((inb(HOST_CTRL_IO(io_base)) & RX_READY) != 0) {
 249                 data = inb(HOST_DATA_IO(io_base));
 250         }
 251
 252         return data;
 253 }
 254
 255 /*
 256  * Read the SoundScape's host-mode control register, performing
 257  * a limited amount of busy-waiting if the register isn't ready.
 258  * Also leaves all locking-issues to the caller ...
 259  */
 260 static int host_read_ctrl_unsafe(unsigned io_base, unsigned timeout)
 261 {
 262         int data;
 263
 264         while (((data = host_read_unsafe(io_base)) < 0) && (timeout != 0)) {
 265                 udelay(100);
 266                 --timeout;
 267         } /* while */
 268
 269         return data;
 270 }
 271
 272 /*
 273  * Write to the SoundScape's host-mode control registers, but
 274  * leave any locking issues to the caller ...
 275  */
 276 static inline int host_write_unsafe(unsigned io_base, unsigned char data)
 277 {
 278         if ((inb(HOST_CTRL_IO(io_base)) & TX_READY) != 0) {
 279                 outb(data, HOST_DATA_IO(io_base));
 280                 return 1;
 281         }
 282
 283         return 0;
 284 }
 285
 286 /*
 287  * Write to the SoundScape's host-mode control registers, performing
 288  * a limited amount of busy-waiting if the register isn't ready.
 289  * Also leaves all locking-issues to the caller ...
 290  */
 291 static int host_write_ctrl_unsafe(unsigned io_base, unsigned char data,
 292                                   unsigned timeout)
 293 {
 294         int err;
 295
 296         while (!(err = host_write_unsafe(io_base, data)) && (timeout != 0)) {
 297                 udelay(100);
 298                 --timeout;
 299         } /* while */
 300
 301         return err;
 302 }
 303
 304
 305 /*
 306  * Check that the MIDI subsystem is operational. If it isn't,
 307  * then we will hang the computer if we try to use it ...
 308  *
 309  * NOTE: This check is based upon observation, not documentation.
 310  */
 311 static inline int verify_mpu401(const struct snd_mpu401 * mpu)
 312 {
 313         return ((inb(MPU401C(mpu)) & 0xc0) == 0x80);
 314 }
 315
 316 /*
 317  * This is apparently the standard way to initailise an MPU-401
 318  */
 319 static inline void initialise_mpu401(const struct snd_mpu401 * mpu)
 320 {
 321         outb(0, MPU401D(mpu));
 322 }
 323
 324 /*
 325  * Tell the SoundScape to activate the AD1845 chip (I think).
 326  * The AD1845 detection fails if we *don't* do this, so I
 327  * think that this is a good idea ...
 328  */
 329 static inline void activate_ad1845_unsafe(unsigned io_base)
 330 {
 331         sscape_write_unsafe(io_base, GA_HMCTL_REG, (sscape_read_unsafe(io_base, GA_HMCTL_REG) & 0xcf) | 0x10);
 332         sscape_write_unsafe(io_base, GA_CDCFG_REG, 0x80);
 333 }
 334
 335 /*
 336  * Do the necessary ALSA-level cleanup to deallocate our driver ...
 337  */
 338 static void soundscape_free(struct snd_card *c)
 339 {
 340         struct soundscape *sscape = get_card_soundscape(c);
 341         release_and_free_resource(sscape->io_res);
 342         release_and_free_resource(sscape->wss_res);
 343         free_dma(sscape->chip->dma1);
 344 }
 345
 346 /*
 347  * Tell the SoundScape to begin a DMA tranfer using the given channel.
 348  * All locking issues are left to the caller.
 349  */
 350 static inline void sscape_start_dma_unsafe(unsigned io_base, enum GA_REG reg)
 351 {
 352         sscape_write_unsafe(io_base, reg, sscape_read_unsafe(io_base, reg) | 0x01);
 353         sscape_write_unsafe(io_base, reg, sscape_read_unsafe(io_base, reg) & 0xfe);
 354 }
 355
 356 /*
 357  * Wait for a DMA transfer to complete. This is a "limited busy-wait",
 358  * and all locking issues are left to the caller.
 359  */
 360 static int sscape_wait_dma_unsafe(unsigned io_base, enum GA_REG reg, unsigned timeout)
 361 {
 362         while (!(sscape_read_unsafe(io_base, reg) & 0x01) && (timeout != 0)) {
 363                 udelay(100);
 364                 --timeout;
 365         } /* while */
 366
 367         return (sscape_read_unsafe(io_base, reg) & 0x01);
 368 }
 369
 370 /*
 371  * Wait for the On-Board Processor to return its start-up
 372  * acknowledgement sequence. This wait is too long for
 373  * us to perform "busy-waiting", and so we must sleep.
 374  * This in turn means that we must not be holding any
 375  * spinlocks when we call this function.
 376  */
 377 static int obp_startup_ack(struct soundscape *s, unsigned timeout)
 378 {
 379         unsigned long end_time = jiffies + msecs_to_jiffies(timeout);
 380
 381         do {
 382                 unsigned long flags;
 383                 int x;
 384
 385                 spin_lock_irqsave(&s->lock, flags);
 386                 x = host_read_unsafe(s->io_base);
 387                 spin_unlock_irqrestore(&s->lock, flags);
 388                 if (x == 0xfe || x == 0xff)
 389                         return 1;
 390
 391                 msleep(10);
 392         } while (time_before(jiffies, end_time));
 393
 394         return 0;
 395 }
 396
 397 /*
 398  * Wait for the host to return its start-up acknowledgement
 399  * sequence. This wait is too long for us to perform
 400  * "busy-waiting", and so we must sleep. This in turn means
 401  * that we must not be holding any spinlocks when we call
 402  * this function.
 403  */
 404 static int host_startup_ack(struct soundscape *s, unsigned timeout)
 405 {
 406         unsigned long end_time = jiffies + msecs_to_jiffies(timeout);
 407
 408         do {
 409                 unsigned long flags;
 410                 int x;
 411
 412                 spin_lock_irqsave(&s->lock, flags);
 413                 x = host_read_unsafe(s->io_base);
 414                 spin_unlock_irqrestore(&s->lock, flags);
 415                 if (x == 0xfe)
 416                         return 1;
 417
 418                 msleep(10);
 419         } while (time_before(jiffies, end_time));
 420
 421         return 0;
 422 }
 423
 424 /*
 425  * Upload a byte-stream into the SoundScape using DMA channel A.
 426  */
 427 static int upload_dma_data(struct soundscape *s,
 428                            const unsigned char *data,
 429                            size_t size)
 430 {
 431         unsigned long flags;
 432         struct snd_dma_buffer dma;
 433         int ret;
 434
 435         if (!get_dmabuf(&dma, PAGE_ALIGN(32 * 1024)))
 436                 return -ENOMEM;
 437
 438         spin_lock_irqsave(&s->lock, flags);
 439
 440         /*
 441          * Reset the board ...
 442          */
 443         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, sscape_read_unsafe(s->io_base, GA_HMCTL_REG) & 0x3f);
 444
 445         /*
 446          * Enable the DMA channels and configure them ...
 447          */
 448         sscape_write_unsafe(s->io_base, GA_DMAA_REG, (s->chip->dma1 << 4) | DMA_8BIT);
 449         sscape_write_unsafe(s->io_base, GA_DMAB_REG, 0x20);
 450
 451         /*
 452          * Take the board out of reset ...
 453          */
 454         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, sscape_read_unsafe(s->io_base, GA_HMCTL_REG) | 0x80);
 455
 456         /*
 457          * Upload the firmware to the SoundScape
 458          * board through the DMA channel ...
 459          */
 460         while (size != 0) {
 461                 unsigned long len;
 462
 463                 len = min(size, dma.bytes);
 464                 memcpy(dma.area, data, len);
 465                 data += len;
 466                 size -= len;
 467
 468                 snd_dma_program(s->chip->dma1, dma.addr, len, DMA_MODE_WRITE);
 469                 sscape_start_dma_unsafe(s->io_base, GA_DMAA_REG);
 470                 if (!sscape_wait_dma_unsafe(s->io_base, GA_DMAA_REG, 5000)) {
 471                         /*
 472                          * Don't forget to release this spinlock we're holding ...
 473                          */
 474                         spin_unlock_irqrestore(&s->lock, flags);
 475
 476                         snd_printk(KERN_ERR
 477                                         "sscape: DMA upload has timed out\n");
 478                         ret = -EAGAIN;
 479                         goto _release_dma;
 480                 }
 481         } /* while */
 482
 483         set_host_mode_unsafe(s->io_base);
 484         outb(0x0, s->io_base);
 485
 486         /*
 487          * Boot the board ... (I think)
 488          */
 489         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, sscape_read_unsafe(s->io_base, GA_HMCTL_REG) | 0x40);
 490         spin_unlock_irqrestore(&s->lock, flags);
 491
 492         /*
 493          * If all has gone well, then the board should acknowledge
 494          * the new upload and tell us that it has rebooted OK. We
 495          * give it 5 seconds (max) ...
 496          */
 497         ret = 0;
 498         if (!obp_startup_ack(s, 5000)) {
 499                 snd_printk(KERN_ERR "sscape: No response "
 500                                     "from on-board processor after upload\n");
 501                 ret = -EAGAIN;
 502         } else if (!host_startup_ack(s, 5000)) {
 503                 snd_printk(KERN_ERR
 504                                 "sscape: SoundScape failed to initialise\n");
 505                 ret = -EAGAIN;
 506         }
 507
 508 _release_dma:
 509         /*
 510          * NOTE!!! We are NOT holding any spinlocks at this point !!!
 511          */
 512         sscape_write(s, GA_DMAA_REG, (s->ic_type == IC_OPUS ? 0x40 : 0x70));
 513         free_dmabuf(&dma);
 514
 515         return ret;
 516 }
 517
 518 /*
 519  * Upload the bootblock(?) into the SoundScape. The only
 520  * purpose of this block of code seems to be to tell
 521  * us which version of the microcode we should be using.
 522  */
 523 static int sscape_upload_bootblock(struct snd_card *card)
 524 {
 525         struct soundscape *sscape = get_card_soundscape(card);
 526         unsigned long flags;
 527         const struct firmware *init_fw = NULL;
 528         int data = 0;
 529         int ret;
 530
 531         ret = request_firmware(&init_fw, "scope.cod", card->dev);
 532         if (ret < 0) {
 533                 snd_printk(KERN_ERR "sscape: Error loading scope.cod");
 534                 return ret;
 535         }
 536         ret = upload_dma_data(sscape, init_fw->data, init_fw->size);
 537
 538         release_firmware(init_fw);
 539
 540         spin_lock_irqsave(&sscape->lock, flags);
 541         if (ret == 0)
 542                 data = host_read_ctrl_unsafe(sscape->io_base, 100);
 543
 544         if (data & 0x10)
 545                 sscape_write_unsafe(sscape->io_base, GA_SMCFGA_REG, 0x2f);
 546
 547         spin_unlock_irqrestore(&sscape->lock, flags);
 548
 549         data &= 0xf;
 550         if (ret == 0 && data > 7) {
 551                 snd_printk(KERN_ERR
 552                                 "sscape: timeout reading firmware version\n");
 553                 ret = -EAGAIN;
 554         }
 555
 556         return (ret == 0) ? data : ret;
 557 }
 558
 559 /*
 560  * Upload the microcode into the SoundScape.
 561  */
 562 static int sscape_upload_microcode(struct snd_card *card, int version)
 563 {
 564         struct soundscape *sscape = get_card_soundscape(card);
 565         const struct firmware *init_fw = NULL;
 566         char name[14];
 567         int err;
 568
 569         snprintf(name, sizeof(name), "sndscape.co%d", version);
 570
 571         err = request_firmware(&init_fw, name, card->dev);
 572         if (err < 0) {
 573                 snd_printk(KERN_ERR "sscape: Error loading sndscape.co%d",
 574                                 version);
 575                 return err;
 576         }
 577         err = upload_dma_data(sscape, init_fw->data, init_fw->size);
 578         if (err == 0)
 579                 snd_printk(KERN_INFO "sscape: MIDI firmware loaded %d KBs\n",
 580                                 init_fw->size >> 10);
 581
 582         release_firmware(init_fw);
 583
 584         return err;
 585 }
 586
 587 /*
 588  * Mixer control for the SoundScape's MIDI device.
 589  */
 590 static int sscape_midi_info(struct snd_kcontrol *ctl,
 591                             struct snd_ctl_elem_info *uinfo)
 592 {
 593         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 594         uinfo->count = 1;
 595         uinfo->value.integer.min = 0;
 596         uinfo->value.integer.max = 127;
 597         return 0;
 598 }
 599
 600 static int sscape_midi_get(struct snd_kcontrol *kctl,
 601                            struct snd_ctl_elem_value *uctl)
 602 {
 603         struct snd_wss *chip = snd_kcontrol_chip(kctl);
 604         struct snd_card *card = chip->card;
 605         register struct soundscape *s = get_card_soundscape(card);
 606         unsigned long flags;
 607
 608         spin_lock_irqsave(&s->lock, flags);
 609         uctl->value.integer.value[0] = s->midi_vol;
 610         spin_unlock_irqrestore(&s->lock, flags);
 611         return 0;
 612 }
 613
 614 static int sscape_midi_put(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         int change;
 622
 623         spin_lock_irqsave(&s->lock, flags);
 624
 625         /*
 626          * We need to put the board into HOST mode before we
 627          * can send any volume-changing HOST commands ...
 628          */
 629         set_host_mode_unsafe(s->io_base);
 630
 631         /*
 632          * To successfully change the MIDI volume setting, you seem to
 633          * have to write a volume command, write the new volume value,
 634          * and then perform another volume-related command. Perhaps the
 635          * first command is an "open" and the second command is a "close"?
 636          */
 637         if (s->midi_vol == ((unsigned char) uctl->value.integer. value[0] & 127)) {
 638                 change = 0;
 639                 goto __skip_change;
 640         }
 641         change = (host_write_ctrl_unsafe(s->io_base, CMD_SET_MIDI_VOL, 100)
 642                   && host_write_ctrl_unsafe(s->io_base, ((unsigned char) uctl->value.integer. value[0]) & 127, 100)
 643                   && host_write_ctrl_unsafe(s->io_base, CMD_XXX_MIDI_VOL, 100));
 644         s->midi_vol = (unsigned char) uctl->value.integer.value[0] & 127;
 645       __skip_change:
 646
 647         /*
 648          * Take the board out of HOST mode and back into MIDI mode ...
 649          */
 650         set_midi_mode_unsafe(s->io_base);
 651
 652         spin_unlock_irqrestore(&s->lock, flags);
 653         return change;
 654 }
 655
 656 static struct snd_kcontrol_new midi_mixer_ctl = {
 657         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 658         .name = "MIDI",
 659         .info = sscape_midi_info,
 660         .get = sscape_midi_get,
 661         .put = sscape_midi_put
 662 };
 663
 664 /*
 665  * The SoundScape can use two IRQs from a possible set of four.
 666  * These IRQs are encoded as bit patterns so that they can be
 667  * written to the control registers.
 668  */
 669 static unsigned __devinit get_irq_config(int sscape_type, int irq)
 670 {
 671         static const int valid_irq[] = { 9, 5, 7, 10 };
 672         static const int old_irq[] = { 9, 7, 5, 15 };
 673         unsigned cfg;
 674
 675         if (sscape_type == MEDIA_FX) {
 676                 for (cfg = 0; cfg < ARRAY_SIZE(old_irq); ++cfg)
 677                         if (irq == old_irq[cfg])
 678                                 return cfg;
 679         } else {
 680                 for (cfg = 0; cfg < ARRAY_SIZE(valid_irq); ++cfg)
 681                         if (irq == valid_irq[cfg])
 682                                 return cfg;
 683         }
 684
 685         return INVALID_IRQ;
 686 }
 687
 688 /*
 689  * Perform certain arcane port-checks to see whether there
 690  * is a SoundScape board lurking behind the given ports.
 691  */
 692 static int __devinit detect_sscape(struct soundscape *s, long wss_io)
 693 {
 694         unsigned long flags;
 695         unsigned d;
 696         int retval = 0;
 697
 698         spin_lock_irqsave(&s->lock, flags);
 699
 700         /*
 701          * The following code is lifted from the original OSS driver,
 702          * and as I don't have a datasheet I cannot really comment
 703          * on what it is doing...
 704          */
 705         if ((inb(HOST_CTRL_IO(s->io_base)) & 0x78) != 0)
 706                 goto _done;
 707
 708         d = inb(ODIE_ADDR_IO(s->io_base)) & 0xf0;
 709         if ((d & 0x80) != 0)
 710                 goto _done;
 711
 712         if (d == 0)
 713                 s->ic_type = IC_ODIE;
 714         else if ((d & 0x60) != 0)
 715                 s->ic_type = IC_OPUS;
 716         else
 717                 goto _done;
 718
 719         outb(0xfa, ODIE_ADDR_IO(s->io_base));
 720         if ((inb(ODIE_ADDR_IO(s->io_base)) & 0x9f) != 0x0a)
 721                 goto _done;
 722
 723         outb(0xfe, ODIE_ADDR_IO(s->io_base));
 724         if ((inb(ODIE_ADDR_IO(s->io_base)) & 0x9f) != 0x0e)
 725                 goto _done;
 726
 727         outb(0xfe, ODIE_ADDR_IO(s->io_base));
 728         d = inb(ODIE_DATA_IO(s->io_base));
 729         if (s->type != SSCAPE_VIVO && (d & 0x9f) != 0x0e)
 730                 goto _done;
 731
 732         if (s->ic_type == IC_OPUS)
 733                 activate_ad1845_unsafe(s->io_base);
 734
 735         if (s->type == SSCAPE_VIVO)
 736                 wss_io += 4;
 737
 738         d  = sscape_read_unsafe(s->io_base, GA_HMCTL_REG) & 0x3f;
 739         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d | 0xc0);
 740
 741         /* wait for WSS codec */
 742         for (d = 0; d < 500; d++) {
 743                 if ((inb(wss_io) & 0x80) == 0)
 744                         break;
 745                 spin_unlock_irqrestore(&s->lock, flags);
 746                 msleep(1);
 747                 spin_lock_irqsave(&s->lock, flags);
 748         }
 749
 750         if ((inb(wss_io) & 0x80) != 0)
 751                 goto _done;
 752
 753         if (inb(wss_io + 2) == 0xff)
 754                 goto _done;
 755
 756         d  = sscape_read_unsafe(s->io_base, GA_HMCTL_REG) & 0x3f;
 757         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d);
 758
 759         if ((inb(wss_io) & 0x80) != 0)
 760                 s->type = MEDIA_FX;
 761
 762         d = sscape_read_unsafe(s->io_base, GA_HMCTL_REG) & 0x3f;
 763         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d | 0xc0);
 764         /* wait for WSS codec */
 765         for (d = 0; d < 500; d++) {
 766                 if ((inb(wss_io) & 0x80) == 0)
 767                         break;
 768                 spin_unlock_irqrestore(&s->lock, flags);
 769                 msleep(1);
 770                 spin_lock_irqsave(&s->lock, flags);
 771         }
 772
 773         /*
 774          * SoundScape successfully detected!
 775          */
 776         retval = 1;
 777
 778         _done:
 779         spin_unlock_irqrestore(&s->lock, flags);
 780         return retval;
 781 }
 782
 783 /*
 784  * ALSA callback function, called when attempting to open the MIDI device.
 785  * Check that the MIDI firmware has been loaded, because we don't want
 786  * to crash the machine. Also check that someone isn't using the hardware
 787  * IOCTL device.
 788  */
 789 static int mpu401_open(struct snd_mpu401 * mpu)
 790 {
 791         if (!verify_mpu401(mpu)) {
 792                 snd_printk(KERN_ERR "sscape: MIDI disabled, "
 793                                     "please load firmware\n");
 794                 return -ENODEV;
 795         }
 796
 797         return 0;
 798 }
 799
 800 /*
 801  * Initialse an MPU-401 subdevice for MIDI support on the SoundScape.
 802  */
 803 static int __devinit create_mpu401(struct snd_card *card, int devnum, unsigned long port, int irq)
 804 {
 805         struct soundscape *sscape = get_card_soundscape(card);
 806         struct snd_rawmidi *rawmidi;
 807         int err;
 808
 809         if ((err = snd_mpu401_uart_new(card, devnum,
 810                                        MPU401_HW_MPU401,
 811                                        port, MPU401_INFO_INTEGRATED,
 812                                        irq, IRQF_DISABLED,
 813                                        &rawmidi)) == 0) {
 814                 struct snd_mpu401 *mpu = (struct snd_mpu401 *) rawmidi->private_data;
 815                 mpu->open_input = mpu401_open;
 816                 mpu->open_output = mpu401_open;
 817                 mpu->private_data = sscape;
 818                 sscape->mpu = mpu;
 819
 820                 initialise_mpu401(mpu);
 821         }
 822
 823         return err;
 824 }
 825
 826
 827 /*
 828  * Create an AD1845 PCM subdevice on the SoundScape. The AD1845
 829  * is very much like a CS4231, with a few extra bits. We will
 830  * try to support at least some of the extra bits by overriding
 831  * some of the CS4231 callback.
 832  */
 833 static int __devinit create_ad1845(struct snd_card *card, unsigned port,
 834                                    int irq, int dma1, int dma2)
 835 {
 836         register struct soundscape *sscape = get_card_soundscape(card);
 837         struct snd_wss *chip;
 838         int err;
 839
 840         if (sscape->type == SSCAPE_VIVO)
 841                 port += 4;
 842
 843         err = snd_wss_create(card, port, -1, irq, dma1, dma2,
 844                              WSS_HW_DETECT, WSS_HWSHARE_DMA1, &chip);
 845         if (!err) {
 846                 unsigned long flags;
 847                 struct snd_pcm *pcm;
 848
 849 /*
 850  * It turns out that the PLAYBACK_ENABLE bit is set
 851  * by the lowlevel driver ...
 852  *
 853 #define AD1845_IFACE_CONFIG  \
 854            (CS4231_AUTOCALIB | CS4231_RECORD_ENABLE | CS4231_PLAYBACK_ENABLE)
 855     snd_wss_mce_up(chip);
 856     spin_lock_irqsave(&chip->reg_lock, flags);
 857     snd_wss_out(chip, CS4231_IFACE_CTRL, AD1845_IFACE_CONFIG);
 858     spin_unlock_irqrestore(&chip->reg_lock, flags);
 859     snd_wss_mce_down(chip);
 860  */
 861
 862                 if (sscape->type != SSCAPE_VIVO) {
 863                         /*
 864                          * The input clock frequency on the SoundScape must
 865                          * be 14.31818 MHz, because we must set this register
 866                          * to get the playback to sound correct ...
 867                          */
 868                         snd_wss_mce_up(chip);
 869                         spin_lock_irqsave(&chip->reg_lock, flags);
 870                         snd_wss_out(chip, AD1845_CLOCK, 0x20);
 871                         spin_unlock_irqrestore(&chip->reg_lock, flags);
 872                         snd_wss_mce_down(chip);
 873
 874                 }
 875
 876                 err = snd_wss_pcm(chip, 0, &pcm);
 877                 if (err < 0) {
 878                         snd_printk(KERN_ERR "sscape: No PCM device "
 879                                             "for AD1845 chip\n");
 880                         goto _error;
 881                 }
 882
 883                 err = snd_wss_mixer(chip);
 884                 if (err < 0) {
 885                         snd_printk(KERN_ERR "sscape: No mixer device "
 886                                             "for AD1845 chip\n");
 887                         goto _error;
 888                 }
 889                 if (chip->hardware != WSS_HW_AD1848) {
 890                         err = snd_wss_timer(chip, 0, NULL);
 891                         if (err < 0) {
 892                                 snd_printk(KERN_ERR "sscape: No timer device "
 893                                                     "for AD1845 chip\n");
 894                                 goto _error;
 895                         }
 896                 }
 897
 898                 if (sscape->type != SSCAPE_VIVO) {
 899                         err = snd_ctl_add(card,
 900                                           snd_ctl_new1(&midi_mixer_ctl, chip));
 901                         if (err < 0) {
 902                                 snd_printk(KERN_ERR "sscape: Could not create "
 903                                                     "MIDI mixer control\n");
 904                                 goto _error;
 905                         }
 906                 }
 907
 908                 sscape->chip = chip;
 909         }
 910
 911         _error:
 912         return err;
 913 }
 914
 915
 916 /*
 917  * Create an ALSA soundcard entry for the SoundScape, using
 918  * the given list of port, IRQ and DMA resources.
 919  */
 920 static int __devinit create_sscape(int dev, struct snd_card *card)
 921 {
 922         struct soundscape *sscape = get_card_soundscape(card);
 923         unsigned dma_cfg;
 924         unsigned irq_cfg;
 925         unsigned mpu_irq_cfg;
 926         struct resource *io_res;
 927         struct resource *wss_res;
 928         unsigned long flags;
 929         int err;
 930         const char *name;
 931
 932         /*
 933          * Grab IO ports that we will need to probe so that we
 934          * can detect and control this hardware ...
 935          */
 936         io_res = request_region(port[dev], 8, "SoundScape");
 937         if (!io_res) {
 938                 snd_printk(KERN_ERR
 939                            "sscape: can't grab port 0x%lx\n", port[dev]);
 940                 return -EBUSY;
 941         }
 942         wss_res = NULL;
 943         if (sscape->type == SSCAPE_VIVO) {
 944                 wss_res = request_region(wss_port[dev], 4, "SoundScape");
 945                 if (!wss_res) {
 946                         snd_printk(KERN_ERR "sscape: can't grab port 0x%lx\n",
 947                                             wss_port[dev]);
 948                         err = -EBUSY;
 949                         goto _release_region;
 950                 }
 951         }
 952
 953         /*
 954          * Grab one DMA channel ...
 955          */
 956         err = request_dma(dma[dev], "SoundScape");
 957         if (err < 0) {
 958                 snd_printk(KERN_ERR "sscape: can't grab DMA %d\n", dma[dev]);
 959                 goto _release_region;
 960         }
 961
 962         spin_lock_init(&sscape->lock);
 963         sscape->io_res = io_res;
 964         sscape->wss_res = wss_res;
 965         sscape->io_base = port[dev];
 966
 967         if (!detect_sscape(sscape, wss_port[dev])) {
 968                 printk(KERN_ERR "sscape: hardware not detected at 0x%x\n",
 969                         sscape->io_base);
 970                 err = -ENODEV;
 971                 goto _release_dma;
 972         }
 973
 974         switch (sscape->type) {
 975         case MEDIA_FX:
 976                 name = "MediaFX/SoundFX";
 977                 break;
 978         case SSCAPE:
 979                 name = "Soundscape";
 980                 break;
 981         case SSCAPE_PNP:
 982                 name = "Soundscape PnP";
 983                 break;
 984         case SSCAPE_VIVO:
 985                 name = "Soundscape VIVO";
 986                 break;
 987         default:
 988                 name = "unknown Soundscape";
 989                 break;
 990         }
 991
 992         printk(KERN_INFO "sscape: %s card detected at 0x%x, using IRQ %d, DMA %d\n",
 993                          name, sscape->io_base, irq[dev], dma[dev]);
 994
 995         /*
 996          * Check that the user didn't pass us garbage data ...
 997          */
 998         irq_cfg = get_irq_config(sscape->type, irq[dev]);
 999         if (irq_cfg == INVALID_IRQ) {
1000                 snd_printk(KERN_ERR "sscape: Invalid IRQ %d\n", irq[dev]);
1001                 return -ENXIO;
1002         }
1003
1004         mpu_irq_cfg = get_irq_config(sscape->type, mpu_irq[dev]);
1005         if (mpu_irq_cfg == INVALID_IRQ) {
1006                 snd_printk(KERN_ERR "sscape: Invalid IRQ %d\n", mpu_irq[dev]);
1007                 return -ENXIO;
1008         }
1009
1010         /*
1011          * Tell the on-board devices where their resources are (I think -
1012          * I can't be sure without a datasheet ... So many magic values!)
1013          */
1014         spin_lock_irqsave(&sscape->lock, flags);
1015
1016         sscape_write_unsafe(sscape->io_base, GA_INTENA_REG, 0x00); /* disable */
1017         sscape_write_unsafe(sscape->io_base, GA_SMCFGA_REG, 0x2e);
1018         sscape_write_unsafe(sscape->io_base, GA_SMCFGB_REG, 0x00);
1019
1020         /*
1021          * Enable and configure the DMA channels ...
1022          */
1023         sscape_write_unsafe(sscape->io_base, GA_DMACFG_REG, 0x50);
1024         dma_cfg = (sscape->ic_type == IC_OPUS ? 0x40 : 0x70);
1025         sscape_write_unsafe(sscape->io_base, GA_DMAA_REG, dma_cfg);
1026         sscape_write_unsafe(sscape->io_base, GA_DMAB_REG, 0x20);
1027
1028         mpu_irq_cfg |= mpu_irq_cfg << 2;
1029         sscape_write_unsafe(sscape->io_base, GA_INTCFG_REG, 0xf0 | mpu_irq_cfg);
1030         sscape_write_unsafe(sscape->io_base,
1031                             GA_CDCFG_REG, 0x09 | DMA_8BIT
1032                             | (dma[dev] << 4) | (irq_cfg << 1));
1033
1034         spin_unlock_irqrestore(&sscape->lock, flags);
1035
1036         /*
1037          * We have now enabled the codec chip, and so we should
1038          * detect the AD1845 device ...
1039          */
1040         err = create_ad1845(card, wss_port[dev], irq[dev],
1041                             dma[dev], dma2[dev]);
1042         if (err < 0) {
1043                 snd_printk(KERN_ERR
1044                                 "sscape: No AD1845 device at 0x%lx, IRQ %d\n",
1045                                 wss_port[dev], irq[dev]);
1046                 goto _release_dma;
1047         }
1048         strcpy(card->driver, "SoundScape");
1049         strcpy(card->shortname, name);
1050         snprintf(card->longname, sizeof(card->longname),
1051                  "%s at 0x%lx, IRQ %d, DMA1 %d, DMA2 %d\n",
1052                  name, sscape->chip->port, sscape->chip->irq,
1053                  sscape->chip->dma1, sscape->chip->dma2);
1054
1055 #define MIDI_DEVNUM  0
1056         if (sscape->type != SSCAPE_VIVO) {
1057                 err = sscape_upload_bootblock(card);
1058                 if (err >= 0)
1059                         err = sscape_upload_microcode(card, err);
1060
1061                 if (err == 0) {
1062                         err = create_mpu401(card, MIDI_DEVNUM, port[dev],
1063                                             mpu_irq[dev]);
1064                         if (err < 0) {
1065                                 snd_printk(KERN_ERR "sscape: Failed to create "
1066                                                 "MPU-401 device at 0x%lx\n",
1067                                                 port[dev]);
1068                                 goto _release_dma;
1069                         }
1070
1071                         /*
1072                          * Enable the master IRQ ...
1073                          */
1074                         sscape_write(sscape, GA_INTENA_REG, 0x80);
1075
1076                         /*
1077                          * Initialize mixer
1078                          */
1079                         spin_lock_irqsave(&sscape->lock, flags);
1080                         sscape->midi_vol = 0;
1081                         host_write_ctrl_unsafe(sscape->io_base,
1082                                                 CMD_SET_MIDI_VOL, 100);
1083                         host_write_ctrl_unsafe(sscape->io_base,
1084                                                 sscape->midi_vol, 100);
1085                         host_write_ctrl_unsafe(sscape->io_base,
1086                                                 CMD_XXX_MIDI_VOL, 100);
1087                         host_write_ctrl_unsafe(sscape->io_base,
1088                                                 sscape->midi_vol, 100);
1089                         host_write_ctrl_unsafe(sscape->io_base,
1090                                                 CMD_SET_EXTMIDI, 100);
1091                         host_write_ctrl_unsafe(sscape->io_base,
1092                                                 0, 100);
1093                         host_write_ctrl_unsafe(sscape->io_base, CMD_ACK, 100);
1094
1095                         set_midi_mode_unsafe(sscape->io_base);
1096                         spin_unlock_irqrestore(&sscape->lock, flags);
1097                 }
1098         }
1099
1100         /*
1101          * Now that we have successfully created this sound card,
1102          * it is safe to store the pointer.
1103          * NOTE: we only register the sound card's "destructor"
1104          *       function now that our "constructor" has completed.
1105          */
1106         card->private_free = soundscape_free;
1107
1108         return 0;
1109
1110 _release_dma:
1111         free_dma(dma[dev]);
1112
1113 _release_region:
1114         release_and_free_resource(wss_res);
1115         release_and_free_resource(io_res);
1116
1117         return err;
1118 }
1119
1120
1121 static int __devinit snd_sscape_match(struct device *pdev, unsigned int i)
1122 {
1123         /*
1124          * Make sure we were given ALL of the other parameters.
1125          */
1126         if (port[i] == SNDRV_AUTO_PORT)
1127                 return 0;
1128
1129         if (irq[i] == SNDRV_AUTO_IRQ ||
1130             mpu_irq[i] == SNDRV_AUTO_IRQ ||
1131             dma[i] == SNDRV_AUTO_DMA) {
1132                 printk(KERN_INFO
1133                        "sscape: insufficient parameters, need IO, IRQ, MPU-IRQ and DMA\n");
1134                 return 0;
1135         }
1136
1137         return 1;
1138 }
1139
1140 static int __devinit snd_sscape_probe(struct device *pdev, unsigned int dev)
1141 {
1142         struct snd_card *card;
1143         struct soundscape *sscape;
1144         int ret;
1145
1146         ret = snd_card_create(index[dev], id[dev], THIS_MODULE,
1147                               sizeof(struct soundscape), &card);
1148         if (ret < 0)
1149                 return ret;
1150
1151         sscape = get_card_soundscape(card);
1152         sscape->type = SSCAPE;
1153
1154         dma[dev] &= 0x03;
1155         snd_card_set_dev(card, pdev);
1156
1157         ret = create_sscape(dev, card);
1158         if (ret < 0)
1159                 goto _release_card;
1160
1161         if ((ret = snd_card_register(card)) < 0) {
1162                 snd_printk(KERN_ERR "sscape: Failed to register sound card\n");
1163                 goto _release_card;
1164         }
1165         dev_set_drvdata(pdev, card);
1166         return 0;
1167
1168 _release_card:
1169         snd_card_free(card);
1170         return ret;
1171 }
1172
1173 static int __devexit snd_sscape_remove(struct device *devptr, unsigned int dev)
1174 {
1175         snd_card_free(dev_get_drvdata(devptr));
1176         dev_set_drvdata(devptr, NULL);
1177         return 0;
1178 }
1179
1180 #define DEV_NAME "sscape"
1181
1182 static struct isa_driver snd_sscape_driver = {
1183         .match          = snd_sscape_match,
1184         .probe          = snd_sscape_probe,
1185         .remove         = __devexit_p(snd_sscape_remove),
1186         /* FIXME: suspend/resume */
1187         .driver         = {
1188                 .name   = DEV_NAME
1189         },
1190 };
1191
1192 #ifdef CONFIG_PNP
1193 static inline int __devinit get_next_autoindex(int i)
1194 {
1195         while (i < SNDRV_CARDS && port[i] != SNDRV_AUTO_PORT)
1196                 ++i;
1197         return i;
1198 }
1199
1200
1201 static int __devinit sscape_pnp_detect(struct pnp_card_link *pcard,
1202                                        const struct pnp_card_device_id *pid)
1203 {
1204         static int idx = 0;
1205         struct pnp_dev *dev;
1206         struct snd_card *card;
1207         struct soundscape *sscape;
1208         int ret;
1209
1210         /*
1211          * Allow this function to fail *quietly* if all the ISA PnP
1212          * devices were configured using module parameters instead.
1213          */
1214         if ((idx = get_next_autoindex(idx)) >= SNDRV_CARDS)
1215                 return -ENOSPC;
1216
1217         /*
1218          * We have found a candidate ISA PnP card. Now we
1219          * have to check that it has the devices that we
1220          * expect it to have.
1221          */
1222
1223         /*
1224          * Check that we still have room for another sound card ...
1225          */
1226         dev = pnp_request_card_device(pcard, pid->devs[0].id, NULL);
1227         if (! dev)
1228                 return -ENODEV;
1229
1230         if (!pnp_is_active(dev)) {
1231                 if (pnp_activate_dev(dev) < 0) {
1232                         snd_printk(KERN_INFO "sscape: device is inactive\n");
1233                         return -EBUSY;
1234                 }
1235         }
1236
1237         /*
1238          * Create a new ALSA sound card entry, in anticipation
1239          * of detecting our hardware ...
1240          */
1241         ret = snd_card_create(index[idx], id[idx], THIS_MODULE,
1242                               sizeof(struct soundscape), &card);
1243         if (ret < 0)
1244                 return ret;
1245
1246         sscape = get_card_soundscape(card);
1247
1248         /*
1249          * Identify card model ...
1250          */
1251         if (!strncmp("ENS4081", pid->id, 7))
1252                 sscape->type = SSCAPE_VIVO;
1253         else
1254                 sscape->type = SSCAPE_PNP;
1255
1256         /*
1257          * Read the correct parameters off the ISA PnP bus ...
1258          */
1259         port[idx] = pnp_port_start(dev, 0);
1260         irq[idx] = pnp_irq(dev, 0);
1261         mpu_irq[idx] = pnp_irq(dev, 1);
1262         dma[idx] = pnp_dma(dev, 0) & 0x03;
1263         if (sscape->type == SSCAPE_PNP) {
1264                 dma2[idx] = dma[idx];
1265                 wss_port[idx] = CODEC_IO(port[idx]);
1266         } else {
1267                 wss_port[idx] = pnp_port_start(dev, 1);
1268                 dma2[idx] = pnp_dma(dev, 1);
1269         }
1270         snd_card_set_dev(card, &pcard->card->dev);
1271
1272         ret = create_sscape(idx, card);
1273         if (ret < 0)
1274                 goto _release_card;
1275
1276         if ((ret = snd_card_register(card)) < 0) {
1277                 snd_printk(KERN_ERR "sscape: Failed to register sound card\n");
1278                 goto _release_card;
1279         }
1280
1281         pnp_set_card_drvdata(pcard, card);
1282         ++idx;
1283         return 0;
1284
1285 _release_card:
1286         snd_card_free(card);
1287         return ret;
1288 }
1289
1290 static void __devexit sscape_pnp_remove(struct pnp_card_link * pcard)
1291 {
1292         snd_card_free(pnp_get_card_drvdata(pcard));
1293         pnp_set_card_drvdata(pcard, NULL);
1294 }
1295
1296 static struct pnp_card_driver sscape_pnpc_driver = {
1297         .flags = PNP_DRIVER_RES_DO_NOT_CHANGE,
1298         .name = "sscape",
1299         .id_table = sscape_pnpids,
1300         .probe = sscape_pnp_detect,
1301         .remove = __devexit_p(sscape_pnp_remove),
1302 };
1303
1304 #endif /* CONFIG_PNP */
1305
1306 static int __init sscape_init(void)
1307 {
1308         int err;
1309
1310         err = isa_register_driver(&snd_sscape_driver, SNDRV_CARDS);
1311 #ifdef CONFIG_PNP
1312         if (!err)
1313                 isa_registered = 1;
1314
1315         err = pnp_register_card_driver(&sscape_pnpc_driver);
1316         if (!err)
1317                 pnp_registered = 1;
1318
1319         if (isa_registered)
1320                 err = 0;
1321 #endif
1322         return err;
1323 }
1324
1325 static void __exit sscape_exit(void)
1326 {
1327 #ifdef CONFIG_PNP
1328         if (pnp_registered)
1329                 pnp_unregister_card_driver(&sscape_pnpc_driver);
1330         if (isa_registered)
1331 #endif
1332                 isa_unregister_driver(&snd_sscape_driver);
1333 }
1334
1335 module_init(sscape_init);
1336 module_exit(sscape_exit);