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   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] = SNDRV_DEFAULT_IDX;
  50 static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  51 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
  52 static long wss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
  53 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
  54 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;
  55 static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
  56 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;
  57 static bool joystick[SNDRV_CARDS];
  58
  59 module_param_array(index, int, NULL, 0444);
  60 MODULE_PARM_DESC(index, "Index number for SoundScape soundcard");
  61
  62 module_param_array(id, charp, NULL, 0444);
  63 MODULE_PARM_DESC(id, "Description for SoundScape card");
  64
  65 module_param_array(port, long, NULL, 0444);
  66 MODULE_PARM_DESC(port, "Port # for SoundScape driver.");
  67
  68 module_param_array(wss_port, long, NULL, 0444);
  69 MODULE_PARM_DESC(wss_port, "WSS Port # for SoundScape driver.");
  70
  71 module_param_array(irq, int, NULL, 0444);
  72 MODULE_PARM_DESC(irq, "IRQ # for SoundScape driver.");
  73
  74 module_param_array(mpu_irq, int, NULL, 0444);
  75 MODULE_PARM_DESC(mpu_irq, "MPU401 IRQ # for SoundScape driver.");
  76
  77 module_param_array(dma, int, NULL, 0444);
  78 MODULE_PARM_DESC(dma, "DMA # for SoundScape driver.");
  79
  80 module_param_array(dma2, int, NULL, 0444);
  81 MODULE_PARM_DESC(dma2, "DMA2 # for SoundScape driver.");
  82
  83 module_param_array(joystick, bool, NULL, 0444);
  84 MODULE_PARM_DESC(joystick, "Enable gameport.");
  85
  86 #ifdef CONFIG_PNP
  87 static int isa_registered;
  88 static int pnp_registered;
  89
  90 static struct pnp_card_device_id sscape_pnpids[] = {
  91         { .id = "ENS3081", .devs = { { "ENS0000" } } }, /* Soundscape PnP */
  92         { .id = "ENS4081", .devs = { { "ENS1011" } } }, /* VIVO90 */
  93         { .id = "" }    /* end */
  94 };
  95
  96 MODULE_DEVICE_TABLE(pnp_card, sscape_pnpids);
  97 #endif
  98
  99
 100 #define HOST_CTRL_IO(i)  ((i) + 2)
 101 #define HOST_DATA_IO(i)  ((i) + 3)
 102 #define ODIE_ADDR_IO(i)  ((i) + 4)
 103 #define ODIE_DATA_IO(i)  ((i) + 5)
 104 #define CODEC_IO(i)      ((i) + 8)
 105
 106 #define IC_ODIE  1
 107 #define IC_OPUS  2
 108
 109 #define RX_READY 0x01
 110 #define TX_READY 0x02
 111
 112 #define CMD_ACK           0x80
 113 #define CMD_SET_MIDI_VOL  0x84
 114 #define CMD_GET_MIDI_VOL  0x85
 115 #define CMD_XXX_MIDI_VOL  0x86
 116 #define CMD_SET_EXTMIDI   0x8a
 117 #define CMD_GET_EXTMIDI   0x8b
 118 #define CMD_SET_MT32      0x8c
 119 #define CMD_GET_MT32      0x8d
 120
 121 enum GA_REG {
 122         GA_INTSTAT_REG = 0,
 123         GA_INTENA_REG,
 124         GA_DMAA_REG,
 125         GA_DMAB_REG,
 126         GA_INTCFG_REG,
 127         GA_DMACFG_REG,
 128         GA_CDCFG_REG,
 129         GA_SMCFGA_REG,
 130         GA_SMCFGB_REG,
 131         GA_HMCTL_REG
 132 };
 133
 134 #define DMA_8BIT  0x80
 135
 136
 137 enum card_type {
 138         MEDIA_FX,       /* Sequoia S-1000 */
 139         SSCAPE,         /* Sequoia S-2000 */
 140         SSCAPE_PNP,
 141         SSCAPE_VIVO,
 142 };
 143
 144 struct soundscape {
 145         spinlock_t lock;
 146         unsigned io_base;
 147         int ic_type;
 148         enum card_type type;
 149         struct resource *io_res;
 150         struct resource *wss_res;
 151         struct snd_wss *chip;
 152
 153         unsigned char midi_vol;
 154 };
 155
 156 #define INVALID_IRQ  ((unsigned)-1)
 157
 158
 159 static inline struct soundscape *get_card_soundscape(struct snd_card *c)
 160 {
 161         return (struct soundscape *) (c->private_data);
 162 }
 163
 164 /*
 165  * Allocates some kernel memory that we can use for DMA.
 166  * I think this means that the memory has to map to
 167  * contiguous pages of physical memory.
 168  */
 169 static struct snd_dma_buffer *get_dmabuf(struct snd_dma_buffer *buf, unsigned long size)
 170 {
 171         if (buf) {
 172                 if (snd_dma_alloc_pages_fallback(SNDRV_DMA_TYPE_DEV, snd_dma_isa_data(),
 173                                                  size, buf) < 0) {
 174                         snd_printk(KERN_ERR "sscape: Failed to allocate "
 175                                             "%lu bytes for DMA\n",
 176                                             size);
 177                         return NULL;
 178                 }
 179         }
 180
 181         return buf;
 182 }
 183
 184 /*
 185  * Release the DMA-able kernel memory ...
 186  */
 187 static void free_dmabuf(struct snd_dma_buffer *buf)
 188 {
 189         if (buf && buf->area)
 190                 snd_dma_free_pages(buf);
 191 }
 192
 193
 194 /*
 195  * This function writes to the SoundScape's control registers,
 196  * but doesn't do any locking. It's up to the caller to do that.
 197  * This is why this function is "unsafe" ...
 198  */
 199 static inline void sscape_write_unsafe(unsigned io_base, enum GA_REG reg, unsigned char val)
 200 {
 201         outb(reg, ODIE_ADDR_IO(io_base));
 202         outb(val, ODIE_DATA_IO(io_base));
 203 }
 204
 205 /*
 206  * Write to the SoundScape's control registers, and do the
 207  * necessary locking ...
 208  */
 209 static void sscape_write(struct soundscape *s, enum GA_REG reg, unsigned char val)
 210 {
 211         unsigned long flags;
 212
 213         spin_lock_irqsave(&s->lock, flags);
 214         sscape_write_unsafe(s->io_base, reg, val);
 215         spin_unlock_irqrestore(&s->lock, flags);
 216 }
 217
 218 /*
 219  * Read from the SoundScape's control registers, but leave any
 220  * locking to the caller. This is why the function is "unsafe" ...
 221  */
 222 static inline unsigned char sscape_read_unsafe(unsigned io_base, enum GA_REG reg)
 223 {
 224         outb(reg, ODIE_ADDR_IO(io_base));
 225         return inb(ODIE_DATA_IO(io_base));
 226 }
 227
 228 /*
 229  * Puts the SoundScape into "host" mode, as compared to "MIDI" mode
 230  */
 231 static inline void set_host_mode_unsafe(unsigned io_base)
 232 {
 233         outb(0x0, HOST_CTRL_IO(io_base));
 234 }
 235
 236 /*
 237  * Puts the SoundScape into "MIDI" mode, as compared to "host" mode
 238  */
 239 static inline void set_midi_mode_unsafe(unsigned io_base)
 240 {
 241         outb(0x3, HOST_CTRL_IO(io_base));
 242 }
 243
 244 /*
 245  * Read the SoundScape's host-mode control register, but leave
 246  * any locking issues to the caller ...
 247  */
 248 static inline int host_read_unsafe(unsigned io_base)
 249 {
 250         int data = -1;
 251         if ((inb(HOST_CTRL_IO(io_base)) & RX_READY) != 0) {
 252                 data = inb(HOST_DATA_IO(io_base));
 253         }
 254
 255         return data;
 256 }
 257
 258 /*
 259  * Read the SoundScape's host-mode control register, performing
 260  * a limited amount of busy-waiting if the register isn't ready.
 261  * Also leaves all locking-issues to the caller ...
 262  */
 263 static int host_read_ctrl_unsafe(unsigned io_base, unsigned timeout)
 264 {
 265         int data;
 266
 267         while (((data = host_read_unsafe(io_base)) < 0) && (timeout != 0)) {
 268                 udelay(100);
 269                 --timeout;
 270         } /* while */
 271
 272         return data;
 273 }
 274
 275 /*
 276  * Write to the SoundScape's host-mode control registers, but
 277  * leave any locking issues to the caller ...
 278  */
 279 static inline int host_write_unsafe(unsigned io_base, unsigned char data)
 280 {
 281         if ((inb(HOST_CTRL_IO(io_base)) & TX_READY) != 0) {
 282                 outb(data, HOST_DATA_IO(io_base));
 283                 return 1;
 284         }
 285
 286         return 0;
 287 }
 288
 289 /*
 290  * Write to the SoundScape's host-mode control registers, performing
 291  * a limited amount of busy-waiting if the register isn't ready.
 292  * Also leaves all locking-issues to the caller ...
 293  */
 294 static int host_write_ctrl_unsafe(unsigned io_base, unsigned char data,
 295                                   unsigned timeout)
 296 {
 297         int err;
 298
 299         while (!(err = host_write_unsafe(io_base, data)) && (timeout != 0)) {
 300                 udelay(100);
 301                 --timeout;
 302         } /* while */
 303
 304         return err;
 305 }
 306
 307
 308 /*
 309  * Check that the MIDI subsystem is operational. If it isn't,
 310  * then we will hang the computer if we try to use it ...
 311  *
 312  * NOTE: This check is based upon observation, not documentation.
 313  */
 314 static inline int verify_mpu401(const struct snd_mpu401 * mpu)
 315 {
 316         return ((inb(MPU401C(mpu)) & 0xc0) == 0x80);
 317 }
 318
 319 /*
 320  * This is apparently the standard way to initailise an MPU-401
 321  */
 322 static inline void initialise_mpu401(const struct snd_mpu401 * mpu)
 323 {
 324         outb(0, MPU401D(mpu));
 325 }
 326
 327 /*
 328  * Tell the SoundScape to activate the AD1845 chip (I think).
 329  * The AD1845 detection fails if we *don't* do this, so I
 330  * think that this is a good idea ...
 331  */
 332 static inline void activate_ad1845_unsafe(unsigned io_base)
 333 {
 334         sscape_write_unsafe(io_base, GA_HMCTL_REG, (sscape_read_unsafe(io_base, GA_HMCTL_REG) & 0xcf) | 0x10);
 335         sscape_write_unsafe(io_base, GA_CDCFG_REG, 0x80);
 336 }
 337
 338 /*
 339  * Do the necessary ALSA-level cleanup to deallocate our driver ...
 340  */
 341 static void soundscape_free(struct snd_card *c)
 342 {
 343         struct soundscape *sscape = get_card_soundscape(c);
 344         release_and_free_resource(sscape->io_res);
 345         release_and_free_resource(sscape->wss_res);
 346         free_dma(sscape->chip->dma1);
 347 }
 348
 349 /*
 350  * Tell the SoundScape to begin a DMA tranfer using the given channel.
 351  * All locking issues are left to the caller.
 352  */
 353 static inline void sscape_start_dma_unsafe(unsigned io_base, enum GA_REG reg)
 354 {
 355         sscape_write_unsafe(io_base, reg, sscape_read_unsafe(io_base, reg) | 0x01);
 356         sscape_write_unsafe(io_base, reg, sscape_read_unsafe(io_base, reg) & 0xfe);
 357 }
 358
 359 /*
 360  * Wait for a DMA transfer to complete. This is a "limited busy-wait",
 361  * and all locking issues are left to the caller.
 362  */
 363 static int sscape_wait_dma_unsafe(unsigned io_base, enum GA_REG reg, unsigned timeout)
 364 {
 365         while (!(sscape_read_unsafe(io_base, reg) & 0x01) && (timeout != 0)) {
 366                 udelay(100);
 367                 --timeout;
 368         } /* while */
 369
 370         return (sscape_read_unsafe(io_base, reg) & 0x01);
 371 }
 372
 373 /*
 374  * Wait for the On-Board Processor to return its start-up
 375  * acknowledgement sequence. This wait is too long for
 376  * us to perform "busy-waiting", and so we must sleep.
 377  * This in turn means that we must not be holding any
 378  * spinlocks when we call this function.
 379  */
 380 static int obp_startup_ack(struct soundscape *s, unsigned timeout)
 381 {
 382         unsigned long end_time = jiffies + msecs_to_jiffies(timeout);
 383
 384         do {
 385                 unsigned long flags;
 386                 int x;
 387
 388                 spin_lock_irqsave(&s->lock, flags);
 389                 x = host_read_unsafe(s->io_base);
 390                 spin_unlock_irqrestore(&s->lock, flags);
 391                 if (x == 0xfe || x == 0xff)
 392                         return 1;
 393
 394                 msleep(10);
 395         } while (time_before(jiffies, end_time));
 396
 397         return 0;
 398 }
 399
 400 /*
 401  * Wait for the host to return its start-up acknowledgement
 402  * sequence. This wait is too long for us to perform
 403  * "busy-waiting", and so we must sleep. This in turn means
 404  * that we must not be holding any spinlocks when we call
 405  * this function.
 406  */
 407 static int host_startup_ack(struct soundscape *s, unsigned timeout)
 408 {
 409         unsigned long end_time = jiffies + msecs_to_jiffies(timeout);
 410
 411         do {
 412                 unsigned long flags;
 413                 int x;
 414
 415                 spin_lock_irqsave(&s->lock, flags);
 416                 x = host_read_unsafe(s->io_base);
 417                 spin_unlock_irqrestore(&s->lock, flags);
 418                 if (x == 0xfe)
 419                         return 1;
 420
 421                 msleep(10);
 422         } while (time_before(jiffies, end_time));
 423
 424         return 0;
 425 }
 426
 427 /*
 428  * Upload a byte-stream into the SoundScape using DMA channel A.
 429  */
 430 static int upload_dma_data(struct soundscape *s,
 431                            const unsigned char *data,
 432                            size_t size)
 433 {
 434         unsigned long flags;
 435         struct snd_dma_buffer dma;
 436         int ret;
 437
 438         if (!get_dmabuf(&dma, PAGE_ALIGN(32 * 1024)))
 439                 return -ENOMEM;
 440
 441         spin_lock_irqsave(&s->lock, flags);
 442
 443         /*
 444          * Reset the board ...
 445          */
 446         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, sscape_read_unsafe(s->io_base, GA_HMCTL_REG) & 0x3f);
 447
 448         /*
 449          * Enable the DMA channels and configure them ...
 450          */
 451         sscape_write_unsafe(s->io_base, GA_DMAA_REG, (s->chip->dma1 << 4) | DMA_8BIT);
 452         sscape_write_unsafe(s->io_base, GA_DMAB_REG, 0x20);
 453
 454         /*
 455          * Take the board out of reset ...
 456          */
 457         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, sscape_read_unsafe(s->io_base, GA_HMCTL_REG) | 0x80);
 458
 459         /*
 460          * Upload the firmware to the SoundScape
 461          * board through the DMA channel ...
 462          */
 463         while (size != 0) {
 464                 unsigned long len;
 465
 466                 len = min(size, dma.bytes);
 467                 memcpy(dma.area, data, len);
 468                 data += len;
 469                 size -= len;
 470
 471                 snd_dma_program(s->chip->dma1, dma.addr, len, DMA_MODE_WRITE);
 472                 sscape_start_dma_unsafe(s->io_base, GA_DMAA_REG);
 473                 if (!sscape_wait_dma_unsafe(s->io_base, GA_DMAA_REG, 5000)) {
 474                         /*
 475                          * Don't forget to release this spinlock we're holding ...
 476                          */
 477                         spin_unlock_irqrestore(&s->lock, flags);
 478
 479                         snd_printk(KERN_ERR
 480                                         "sscape: DMA upload has timed out\n");
 481                         ret = -EAGAIN;
 482                         goto _release_dma;
 483                 }
 484         } /* while */
 485
 486         set_host_mode_unsafe(s->io_base);
 487         outb(0x0, s->io_base);
 488
 489         /*
 490          * Boot the board ... (I think)
 491          */
 492         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, sscape_read_unsafe(s->io_base, GA_HMCTL_REG) | 0x40);
 493         spin_unlock_irqrestore(&s->lock, flags);
 494
 495         /*
 496          * If all has gone well, then the board should acknowledge
 497          * the new upload and tell us that it has rebooted OK. We
 498          * give it 5 seconds (max) ...
 499          */
 500         ret = 0;
 501         if (!obp_startup_ack(s, 5000)) {
 502                 snd_printk(KERN_ERR "sscape: No response "
 503                                     "from on-board processor after upload\n");
 504                 ret = -EAGAIN;
 505         } else if (!host_startup_ack(s, 5000)) {
 506                 snd_printk(KERN_ERR
 507                                 "sscape: SoundScape failed to initialise\n");
 508                 ret = -EAGAIN;
 509         }
 510
 511 _release_dma:
 512         /*
 513          * NOTE!!! We are NOT holding any spinlocks at this point !!!
 514          */
 515         sscape_write(s, GA_DMAA_REG, (s->ic_type == IC_OPUS ? 0x40 : 0x70));
 516         free_dmabuf(&dma);
 517
 518         return ret;
 519 }
 520
 521 /*
 522  * Upload the bootblock(?) into the SoundScape. The only
 523  * purpose of this block of code seems to be to tell
 524  * us which version of the microcode we should be using.
 525  */
 526 static int sscape_upload_bootblock(struct snd_card *card)
 527 {
 528         struct soundscape *sscape = get_card_soundscape(card);
 529         unsigned long flags;
 530         const struct firmware *init_fw = NULL;
 531         int data = 0;
 532         int ret;
 533
 534         ret = request_firmware(&init_fw, "scope.cod", card->dev);
 535         if (ret < 0) {
 536                 snd_printk(KERN_ERR "sscape: Error loading scope.cod");
 537                 return ret;
 538         }
 539         ret = upload_dma_data(sscape, init_fw->data, init_fw->size);
 540
 541         release_firmware(init_fw);
 542
 543         spin_lock_irqsave(&sscape->lock, flags);
 544         if (ret == 0)
 545                 data = host_read_ctrl_unsafe(sscape->io_base, 100);
 546
 547         if (data & 0x10)
 548                 sscape_write_unsafe(sscape->io_base, GA_SMCFGA_REG, 0x2f);
 549
 550         spin_unlock_irqrestore(&sscape->lock, flags);
 551
 552         data &= 0xf;
 553         if (ret == 0 && data > 7) {
 554                 snd_printk(KERN_ERR
 555                                 "sscape: timeout reading firmware version\n");
 556                 ret = -EAGAIN;
 557         }
 558
 559         return (ret == 0) ? data : ret;
 560 }
 561
 562 /*
 563  * Upload the microcode into the SoundScape.
 564  */
 565 static int sscape_upload_microcode(struct snd_card *card, int version)
 566 {
 567         struct soundscape *sscape = get_card_soundscape(card);
 568         const struct firmware *init_fw = NULL;
 569         char name[14];
 570         int err;
 571
 572         snprintf(name, sizeof(name), "sndscape.co%d", version);
 573
 574         err = request_firmware(&init_fw, name, card->dev);
 575         if (err < 0) {
 576                 snd_printk(KERN_ERR "sscape: Error loading sndscape.co%d",
 577                                 version);
 578                 return err;
 579         }
 580         err = upload_dma_data(sscape, init_fw->data, init_fw->size);
 581         if (err == 0)
 582                 snd_printk(KERN_INFO "sscape: MIDI firmware loaded %d KBs\n",
 583                                 init_fw->size >> 10);
 584
 585         release_firmware(init_fw);
 586
 587         return err;
 588 }
 589
 590 /*
 591  * Mixer control for the SoundScape's MIDI device.
 592  */
 593 static int sscape_midi_info(struct snd_kcontrol *ctl,
 594                             struct snd_ctl_elem_info *uinfo)
 595 {
 596         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 597         uinfo->count = 1;
 598         uinfo->value.integer.min = 0;
 599         uinfo->value.integer.max = 127;
 600         return 0;
 601 }
 602
 603 static int sscape_midi_get(struct snd_kcontrol *kctl,
 604                            struct snd_ctl_elem_value *uctl)
 605 {
 606         struct snd_wss *chip = snd_kcontrol_chip(kctl);
 607         struct snd_card *card = chip->card;
 608         register struct soundscape *s = get_card_soundscape(card);
 609         unsigned long flags;
 610
 611         spin_lock_irqsave(&s->lock, flags);
 612         uctl->value.integer.value[0] = s->midi_vol;
 613         spin_unlock_irqrestore(&s->lock, flags);
 614         return 0;
 615 }
 616
 617 static int sscape_midi_put(struct snd_kcontrol *kctl,
 618                            struct snd_ctl_elem_value *uctl)
 619 {
 620         struct snd_wss *chip = snd_kcontrol_chip(kctl);
 621         struct snd_card *card = chip->card;
 622         register struct soundscape *s = get_card_soundscape(card);
 623         unsigned long flags;
 624         int change;
 625
 626         spin_lock_irqsave(&s->lock, flags);
 627
 628         /*
 629          * We need to put the board into HOST mode before we
 630          * can send any volume-changing HOST commands ...
 631          */
 632         set_host_mode_unsafe(s->io_base);
 633
 634         /*
 635          * To successfully change the MIDI volume setting, you seem to
 636          * have to write a volume command, write the new volume value,
 637          * and then perform another volume-related command. Perhaps the
 638          * first command is an "open" and the second command is a "close"?
 639          */
 640         if (s->midi_vol == ((unsigned char) uctl->value.integer. value[0] & 127)) {
 641                 change = 0;
 642                 goto __skip_change;
 643         }
 644         change = (host_write_ctrl_unsafe(s->io_base, CMD_SET_MIDI_VOL, 100)
 645                   && host_write_ctrl_unsafe(s->io_base, ((unsigned char) uctl->value.integer. value[0]) & 127, 100)
 646                   && host_write_ctrl_unsafe(s->io_base, CMD_XXX_MIDI_VOL, 100));
 647         s->midi_vol = (unsigned char) uctl->value.integer.value[0] & 127;
 648       __skip_change:
 649
 650         /*
 651          * Take the board out of HOST mode and back into MIDI mode ...
 652          */
 653         set_midi_mode_unsafe(s->io_base);
 654
 655         spin_unlock_irqrestore(&s->lock, flags);
 656         return change;
 657 }
 658
 659 static struct snd_kcontrol_new midi_mixer_ctl = {
 660         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 661         .name = "MIDI",
 662         .info = sscape_midi_info,
 663         .get = sscape_midi_get,
 664         .put = sscape_midi_put
 665 };
 666
 667 /*
 668  * The SoundScape can use two IRQs from a possible set of four.
 669  * These IRQs are encoded as bit patterns so that they can be
 670  * written to the control registers.
 671  */
 672 static unsigned __devinit get_irq_config(int sscape_type, int irq)
 673 {
 674         static const int valid_irq[] = { 9, 5, 7, 10 };
 675         static const int old_irq[] = { 9, 7, 5, 15 };
 676         unsigned cfg;
 677
 678         if (sscape_type == MEDIA_FX) {
 679                 for (cfg = 0; cfg < ARRAY_SIZE(old_irq); ++cfg)
 680                         if (irq == old_irq[cfg])
 681                                 return cfg;
 682         } else {
 683                 for (cfg = 0; cfg < ARRAY_SIZE(valid_irq); ++cfg)
 684                         if (irq == valid_irq[cfg])
 685                                 return cfg;
 686         }
 687
 688         return INVALID_IRQ;
 689 }
 690
 691 /*
 692  * Perform certain arcane port-checks to see whether there
 693  * is a SoundScape board lurking behind the given ports.
 694  */
 695 static int __devinit detect_sscape(struct soundscape *s, long wss_io)
 696 {
 697         unsigned long flags;
 698         unsigned d;
 699         int retval = 0;
 700
 701         spin_lock_irqsave(&s->lock, flags);
 702
 703         /*
 704          * The following code is lifted from the original OSS driver,
 705          * and as I don't have a datasheet I cannot really comment
 706          * on what it is doing...
 707          */
 708         if ((inb(HOST_CTRL_IO(s->io_base)) & 0x78) != 0)
 709                 goto _done;
 710
 711         d = inb(ODIE_ADDR_IO(s->io_base)) & 0xf0;
 712         if ((d & 0x80) != 0)
 713                 goto _done;
 714
 715         if (d == 0)
 716                 s->ic_type = IC_ODIE;
 717         else if ((d & 0x60) != 0)
 718                 s->ic_type = IC_OPUS;
 719         else
 720                 goto _done;
 721
 722         outb(0xfa, ODIE_ADDR_IO(s->io_base));
 723         if ((inb(ODIE_ADDR_IO(s->io_base)) & 0x9f) != 0x0a)
 724                 goto _done;
 725
 726         outb(0xfe, ODIE_ADDR_IO(s->io_base));
 727         if ((inb(ODIE_ADDR_IO(s->io_base)) & 0x9f) != 0x0e)
 728                 goto _done;
 729
 730         outb(0xfe, ODIE_ADDR_IO(s->io_base));
 731         d = inb(ODIE_DATA_IO(s->io_base));
 732         if (s->type != SSCAPE_VIVO && (d & 0x9f) != 0x0e)
 733                 goto _done;
 734
 735         if (s->ic_type == IC_OPUS)
 736                 activate_ad1845_unsafe(s->io_base);
 737
 738         if (s->type == SSCAPE_VIVO)
 739                 wss_io += 4;
 740
 741         d  = sscape_read_unsafe(s->io_base, GA_HMCTL_REG) & 0x3f;
 742         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d | 0xc0);
 743
 744         /* wait for WSS codec */
 745         for (d = 0; d < 500; d++) {
 746                 if ((inb(wss_io) & 0x80) == 0)
 747                         break;
 748                 spin_unlock_irqrestore(&s->lock, flags);
 749                 msleep(1);
 750                 spin_lock_irqsave(&s->lock, flags);
 751         }
 752
 753         if ((inb(wss_io) & 0x80) != 0)
 754                 goto _done;
 755
 756         if (inb(wss_io + 2) == 0xff)
 757                 goto _done;
 758
 759         d  = sscape_read_unsafe(s->io_base, GA_HMCTL_REG) & 0x3f;
 760         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d);
 761
 762         if ((inb(wss_io) & 0x80) != 0)
 763                 s->type = MEDIA_FX;
 764
 765         d = sscape_read_unsafe(s->io_base, GA_HMCTL_REG) & 0x3f;
 766         sscape_write_unsafe(s->io_base, GA_HMCTL_REG, d | 0xc0);
 767         /* wait for WSS codec */
 768         for (d = 0; d < 500; d++) {
 769                 if ((inb(wss_io) & 0x80) == 0)
 770                         break;
 771                 spin_unlock_irqrestore(&s->lock, flags);
 772                 msleep(1);
 773                 spin_lock_irqsave(&s->lock, flags);
 774         }
 775
 776         /*
 777          * SoundScape successfully detected!
 778          */
 779         retval = 1;
 780
 781         _done:
 782         spin_unlock_irqrestore(&s->lock, flags);
 783         return retval;
 784 }
 785
 786 /*
 787  * ALSA callback function, called when attempting to open the MIDI device.
 788  * Check that the MIDI firmware has been loaded, because we don't want
 789  * to crash the machine. Also check that someone isn't using the hardware
 790  * IOCTL device.
 791  */
 792 static int mpu401_open(struct snd_mpu401 * mpu)
 793 {
 794         if (!verify_mpu401(mpu)) {
 795                 snd_printk(KERN_ERR "sscape: MIDI disabled, "
 796                                     "please load firmware\n");
 797                 return -ENODEV;
 798         }
 799
 800         return 0;
 801 }
 802
 803 /*
 804  * Initialse an MPU-401 subdevice for MIDI support on the SoundScape.
 805  */
 806 static int __devinit create_mpu401(struct snd_card *card, int devnum, unsigned long port, int irq)
 807 {
 808         struct soundscape *sscape = get_card_soundscape(card);
 809         struct snd_rawmidi *rawmidi;
 810         int err;
 811
 812         if ((err = snd_mpu401_uart_new(card, devnum,
 813                                        MPU401_HW_MPU401,
 814                                        port, MPU401_INFO_INTEGRATED,
 815                                        irq, IRQF_DISABLED,
 816                                        &rawmidi)) == 0) {
 817                 struct snd_mpu401 *mpu = (struct snd_mpu401 *) rawmidi->private_data;
 818                 mpu->open_input = mpu401_open;
 819                 mpu->open_output = mpu401_open;
 820                 mpu->private_data = sscape;
 821
 822                 initialise_mpu401(mpu);
 823         }
 824
 825         return err;
 826 }
 827
 828
 829 /*
 830  * Create an AD1845 PCM subdevice on the SoundScape. The AD1845
 831  * is very much like a CS4231, with a few extra bits. We will
 832  * try to support at least some of the extra bits by overriding
 833  * some of the CS4231 callback.
 834  */
 835 static int __devinit create_ad1845(struct snd_card *card, unsigned port,
 836                                    int irq, int dma1, int dma2)
 837 {
 838         register struct soundscape *sscape = get_card_soundscape(card);
 839         struct snd_wss *chip;
 840         int err;
 841         int codec_type = WSS_HW_DETECT;
 842
 843         switch (sscape->type) {
 844         case MEDIA_FX:
 845         case SSCAPE:
 846                 /*
 847                  * There are some freak examples of early Soundscape cards
 848                  * with CS4231 instead of AD1848/CS4248. Unfortunately, the
 849                  * CS4231 works only in CS4248 compatibility mode on
 850                  * these cards so force it.
 851                  */
 852                 if (sscape->ic_type != IC_OPUS)
 853                         codec_type = WSS_HW_AD1848;
 854                 break;
 855
 856         case SSCAPE_VIVO:
 857                 port += 4;
 858                 break;
 859         default:
 860                 break;
 861         }
 862
 863         err = snd_wss_create(card, port, -1, irq, dma1, dma2,
 864                              codec_type, WSS_HWSHARE_DMA1, &chip);
 865         if (!err) {
 866                 unsigned long flags;
 867                 struct snd_pcm *pcm;
 868
 869 /*
 870  * It turns out that the PLAYBACK_ENABLE bit is set
 871  * by the lowlevel driver ...
 872  *
 873 #define AD1845_IFACE_CONFIG  \
 874            (CS4231_AUTOCALIB | CS4231_RECORD_ENABLE | CS4231_PLAYBACK_ENABLE)
 875     snd_wss_mce_up(chip);
 876     spin_lock_irqsave(&chip->reg_lock, flags);
 877     snd_wss_out(chip, CS4231_IFACE_CTRL, AD1845_IFACE_CONFIG);
 878     spin_unlock_irqrestore(&chip->reg_lock, flags);
 879     snd_wss_mce_down(chip);
 880  */
 881
 882                 if (sscape->type != SSCAPE_VIVO) {
 883                         /*
 884                          * The input clock frequency on the SoundScape must
 885                          * be 14.31818 MHz, because we must set this register
 886                          * to get the playback to sound correct ...
 887                          */
 888                         snd_wss_mce_up(chip);
 889                         spin_lock_irqsave(&chip->reg_lock, flags);
 890                         snd_wss_out(chip, AD1845_CLOCK, 0x20);
 891                         spin_unlock_irqrestore(&chip->reg_lock, flags);
 892                         snd_wss_mce_down(chip);
 893
 894                 }
 895
 896                 err = snd_wss_pcm(chip, 0, &pcm);
 897                 if (err < 0) {
 898                         snd_printk(KERN_ERR "sscape: No PCM device "
 899                                             "for AD1845 chip\n");
 900                         goto _error;
 901                 }
 902
 903                 err = snd_wss_mixer(chip);
 904                 if (err < 0) {
 905                         snd_printk(KERN_ERR "sscape: No mixer device "
 906                                             "for AD1845 chip\n");
 907                         goto _error;
 908                 }
 909                 if (chip->hardware != WSS_HW_AD1848) {
 910                         err = snd_wss_timer(chip, 0, NULL);
 911                         if (err < 0) {
 912                                 snd_printk(KERN_ERR "sscape: No timer device "
 913                                                     "for AD1845 chip\n");
 914                                 goto _error;
 915                         }
 916                 }
 917
 918                 if (sscape->type != SSCAPE_VIVO) {
 919                         err = snd_ctl_add(card,
 920                                           snd_ctl_new1(&midi_mixer_ctl, chip));
 921                         if (err < 0) {
 922                                 snd_printk(KERN_ERR "sscape: Could not create "
 923                                                     "MIDI mixer control\n");
 924                                 goto _error;
 925                         }
 926                 }
 927
 928                 sscape->chip = chip;
 929         }
 930
 931         _error:
 932         return err;
 933 }
 934
 935
 936 /*
 937  * Create an ALSA soundcard entry for the SoundScape, using
 938  * the given list of port, IRQ and DMA resources.
 939  */
 940 static int __devinit 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                 return -ENXIO;
1023         }
1024
1025         mpu_irq_cfg = get_irq_config(sscape->type, mpu_irq[dev]);
1026         if (mpu_irq_cfg == INVALID_IRQ) {
1027                 snd_printk(KERN_ERR "sscape: Invalid IRQ %d\n", mpu_irq[dev]);
1028                 return -ENXIO;
1029         }
1030
1031         /*
1032          * Tell the on-board devices where their resources are (I think -
1033          * I can't be sure without a datasheet ... So many magic values!)
1034          */
1035         spin_lock_irqsave(&sscape->lock, flags);
1036
1037         sscape_write_unsafe(sscape->io_base, GA_INTENA_REG, 0x00); /* disable */
1038         sscape_write_unsafe(sscape->io_base, GA_SMCFGA_REG, 0x2e);
1039         sscape_write_unsafe(sscape->io_base, GA_SMCFGB_REG, 0x00);
1040
1041         /*
1042          * Enable and configure the DMA channels ...
1043          */
1044         sscape_write_unsafe(sscape->io_base, GA_DMACFG_REG, 0x50);
1045         dma_cfg = (sscape->ic_type == IC_OPUS ? 0x40 : 0x70);
1046         sscape_write_unsafe(sscape->io_base, GA_DMAA_REG, dma_cfg);
1047         sscape_write_unsafe(sscape->io_base, GA_DMAB_REG, 0x20);
1048
1049         mpu_irq_cfg |= mpu_irq_cfg << 2;
1050         val = sscape_read_unsafe(sscape->io_base, GA_HMCTL_REG) & 0xF7;
1051         if (joystick[dev])
1052                 val |= 8;
1053         sscape_write_unsafe(sscape->io_base, GA_HMCTL_REG, val | 0x10);
1054         sscape_write_unsafe(sscape->io_base, GA_INTCFG_REG, 0xf0 | mpu_irq_cfg);
1055         sscape_write_unsafe(sscape->io_base,
1056                             GA_CDCFG_REG, 0x09 | DMA_8BIT
1057                             | (dma[dev] << 4) | (irq_cfg << 1));
1058
1059         spin_unlock_irqrestore(&sscape->lock, flags);
1060
1061         /*
1062          * We have now enabled the codec chip, and so we should
1063          * detect the AD1845 device ...
1064          */
1065         err = create_ad1845(card, wss_port[dev], irq[dev],
1066                             dma[dev], dma2[dev]);
1067         if (err < 0) {
1068                 snd_printk(KERN_ERR
1069                                 "sscape: No AD1845 device at 0x%lx, IRQ %d\n",
1070                                 wss_port[dev], irq[dev]);
1071                 goto _release_dma;
1072         }
1073         strcpy(card->driver, "SoundScape");
1074         strcpy(card->shortname, name);
1075         snprintf(card->longname, sizeof(card->longname),
1076                  "%s at 0x%lx, IRQ %d, DMA1 %d, DMA2 %d\n",
1077                  name, sscape->chip->port, sscape->chip->irq,
1078                  sscape->chip->dma1, sscape->chip->dma2);
1079
1080 #define MIDI_DEVNUM  0
1081         if (sscape->type != SSCAPE_VIVO) {
1082                 err = sscape_upload_bootblock(card);
1083                 if (err >= 0)
1084                         err = sscape_upload_microcode(card, err);
1085
1086                 if (err == 0) {
1087                         err = create_mpu401(card, MIDI_DEVNUM, port[dev],
1088                                             mpu_irq[dev]);
1089                         if (err < 0) {
1090                                 snd_printk(KERN_ERR "sscape: Failed to create "
1091                                                 "MPU-401 device at 0x%lx\n",
1092                                                 port[dev]);
1093                                 goto _release_dma;
1094                         }
1095
1096                         /*
1097                          * Enable the master IRQ ...
1098                          */
1099                         sscape_write(sscape, GA_INTENA_REG, 0x80);
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 __devinit 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, need IO, IRQ, MPU-IRQ and DMA\n");
1159                 return 0;
1160         }
1161
1162         return 1;
1163 }
1164
1165 static int __devinit snd_sscape_probe(struct device *pdev, unsigned int dev)
1166 {
1167         struct snd_card *card;
1168         struct soundscape *sscape;
1169         int ret;
1170
1171         ret = snd_card_create(index[dev], id[dev], THIS_MODULE,
1172                               sizeof(struct soundscape), &card);
1173         if (ret < 0)
1174                 return ret;
1175
1176         sscape = get_card_soundscape(card);
1177         sscape->type = SSCAPE;
1178
1179         dma[dev] &= 0x03;
1180         snd_card_set_dev(card, pdev);
1181
1182         ret = create_sscape(dev, card);
1183         if (ret < 0)
1184                 goto _release_card;
1185
1186         if ((ret = snd_card_register(card)) < 0) {
1187                 snd_printk(KERN_ERR "sscape: Failed to register sound card\n");
1188                 goto _release_card;
1189         }
1190         dev_set_drvdata(pdev, card);
1191         return 0;
1192
1193 _release_card:
1194         snd_card_free(card);
1195         return ret;
1196 }
1197
1198 static int __devexit snd_sscape_remove(struct device *devptr, unsigned int dev)
1199 {
1200         snd_card_free(dev_get_drvdata(devptr));
1201         dev_set_drvdata(devptr, NULL);
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         = __devexit_p(snd_sscape_remove),
1211         /* FIXME: suspend/resume */
1212         .driver         = {
1213                 .name   = DEV_NAME
1214         },
1215 };
1216
1217 #ifdef CONFIG_PNP
1218 static inline int __devinit 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 __devinit 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         if ((idx = get_next_autoindex(idx)) >= SNDRV_CARDS)
1240                 return -ENOSPC;
1241
1242         /*
1243          * We have found a candidate ISA PnP card. Now we
1244          * have to check that it has the devices that we
1245          * expect it to have.
1246          */
1247
1248         /*
1249          * Check that we still have room for another sound card ...
1250          */
1251         dev = pnp_request_card_device(pcard, pid->devs[0].id, NULL);
1252         if (! dev)
1253                 return -ENODEV;
1254
1255         if (!pnp_is_active(dev)) {
1256                 if (pnp_activate_dev(dev) < 0) {
1257                         snd_printk(KERN_INFO "sscape: device is inactive\n");
1258                         return -EBUSY;
1259                 }
1260         }
1261
1262         /*
1263          * Create a new ALSA sound card entry, in anticipation
1264          * of detecting our hardware ...
1265          */
1266         ret = snd_card_create(index[idx], id[idx], THIS_MODULE,
1267                               sizeof(struct soundscape), &card);
1268         if (ret < 0)
1269                 return ret;
1270
1271         sscape = get_card_soundscape(card);
1272
1273         /*
1274          * Identify card model ...
1275          */
1276         if (!strncmp("ENS4081", pid->id, 7))
1277                 sscape->type = SSCAPE_VIVO;
1278         else
1279                 sscape->type = SSCAPE_PNP;
1280
1281         /*
1282          * Read the correct parameters off the ISA PnP bus ...
1283          */
1284         port[idx] = pnp_port_start(dev, 0);
1285         irq[idx] = pnp_irq(dev, 0);
1286         mpu_irq[idx] = pnp_irq(dev, 1);
1287         dma[idx] = pnp_dma(dev, 0) & 0x03;
1288         if (sscape->type == SSCAPE_PNP) {
1289                 dma2[idx] = dma[idx];
1290                 wss_port[idx] = CODEC_IO(port[idx]);
1291         } else {
1292                 wss_port[idx] = pnp_port_start(dev, 1);
1293                 dma2[idx] = pnp_dma(dev, 1);
1294         }
1295         snd_card_set_dev(card, &pcard->card->dev);
1296
1297         ret = create_sscape(idx, card);
1298         if (ret < 0)
1299                 goto _release_card;
1300
1301         if ((ret = snd_card_register(card)) < 0) {
1302                 snd_printk(KERN_ERR "sscape: Failed to register sound card\n");
1303                 goto _release_card;
1304         }
1305
1306         pnp_set_card_drvdata(pcard, card);
1307         ++idx;
1308         return 0;
1309
1310 _release_card:
1311         snd_card_free(card);
1312         return ret;
1313 }
1314
1315 static void __devexit sscape_pnp_remove(struct pnp_card_link * pcard)
1316 {
1317         snd_card_free(pnp_get_card_drvdata(pcard));
1318         pnp_set_card_drvdata(pcard, NULL);
1319 }
1320
1321 static struct pnp_card_driver sscape_pnpc_driver = {
1322         .flags = PNP_DRIVER_RES_DO_NOT_CHANGE,
1323         .name = "sscape",
1324         .id_table = sscape_pnpids,
1325         .probe = sscape_pnp_detect,
1326         .remove = __devexit_p(sscape_pnp_remove),
1327 };
1328
1329 #endif /* CONFIG_PNP */
1330
1331 static int __init sscape_init(void)
1332 {
1333         int err;
1334
1335         err = isa_register_driver(&snd_sscape_driver, SNDRV_CARDS);
1336 #ifdef CONFIG_PNP
1337         if (!err)
1338                 isa_registered = 1;
1339
1340         err = pnp_register_card_driver(&sscape_pnpc_driver);
1341         if (!err)
1342                 pnp_registered = 1;
1343
1344         if (isa_registered)
1345                 err = 0;
1346 #endif
1347         return err;
1348 }
1349
1350 static void __exit sscape_exit(void)
1351 {
1352 #ifdef CONFIG_PNP
1353         if (pnp_registered)
1354                 pnp_unregister_card_driver(&sscape_pnpc_driver);
1355         if (isa_registered)
1356 #endif
1357                 isa_unregister_driver(&snd_sscape_driver);
1358 }
1359
1360 module_init(sscape_init);
1361 module_exit(sscape_exit);