sound/isa/sc6000.c

   1 /*
   2  *  Driver for Gallant SC-6000 soundcard. This card is also known as
   3  *  Audio Excel DSP 16 or Zoltrix AV302.
   4  *  These cards use CompuMedia ASC-9308 chip + AD1848 codec.
   5  *
   6  *  Copyright (C) 2007 Krzysztof Helt <krzysztof.h1@wp.pl>
   7  *
   8  *  I don't have documentation for this card. I used the driver
   9  *  for OSS/Free included in the kernel source as reference.
  10  *
  11  *  This program is free software; you can redistribute it and/or modify
  12  *  it under the terms of the GNU General Public License as published by
  13  *  the Free Software Foundation; either version 2 of the License, or
  14  *  (at your option) any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful,
  17  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *  GNU General Public License for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License
  22  *  along with this program; if not, write to the Free Software
  23  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  24  */
  25
  26 #include <linux/module.h>
  27 #include <linux/delay.h>
  28 #include <linux/isa.h>
  29 #include <linux/io.h>
  30 #include <asm/dma.h>
  31 #include <sound/core.h>
  32 #include <sound/wss.h>
  33 #include <sound/opl3.h>
  34 #include <sound/mpu401.h>
  35 #include <sound/control.h>
  36 #define SNDRV_LEGACY_FIND_FREE_IRQ
  37 #define SNDRV_LEGACY_FIND_FREE_DMA
  38 #include <sound/initval.h>
  39
  40 MODULE_AUTHOR("Krzysztof Helt");
  41 MODULE_DESCRIPTION("Gallant SC-6000");
  42 MODULE_LICENSE("GPL");
  43 MODULE_SUPPORTED_DEVICE("{{Gallant, SC-6000},"
  44                         "{AudioExcel, Audio Excel DSP 16},"
  45                         "{Zoltrix, AV302}}");
  46
  47 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  48 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  49 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;  /* Enable this card */
  50 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220, 0x240 */
  51 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5, 7, 9, 10, 11 */
  52 static long mss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x530, 0xe80 */
  53 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
  54                                                 /* 0x300, 0x310, 0x320, 0x330 */
  55 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;    /* 5, 7, 9, 10, 0 */
  56 static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;        /* 0, 1, 3 */
  57
  58 module_param_array(index, int, NULL, 0444);
  59 MODULE_PARM_DESC(index, "Index value for sc-6000 based soundcard.");
  60 module_param_array(id, charp, NULL, 0444);
  61 MODULE_PARM_DESC(id, "ID string for sc-6000 based soundcard.");
  62 module_param_array(enable, bool, NULL, 0444);
  63 MODULE_PARM_DESC(enable, "Enable sc-6000 based soundcard.");
  64 module_param_array(port, long, NULL, 0444);
  65 MODULE_PARM_DESC(port, "Port # for sc-6000 driver.");
  66 module_param_array(mss_port, long, NULL, 0444);
  67 MODULE_PARM_DESC(mss_port, "MSS Port # for sc-6000 driver.");
  68 module_param_array(mpu_port, long, NULL, 0444);
  69 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for sc-6000 driver.");
  70 module_param_array(irq, int, NULL, 0444);
  71 MODULE_PARM_DESC(irq, "IRQ # for sc-6000 driver.");
  72 module_param_array(mpu_irq, int, NULL, 0444);
  73 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for sc-6000 driver.");
  74 module_param_array(dma, int, NULL, 0444);
  75 MODULE_PARM_DESC(dma, "DMA # for sc-6000 driver.");
  76
  77 /*
  78  * Commands of SC6000's DSP (SBPRO+special).
  79  * Some of them are COMMAND_xx, in the future they may change.
  80  */
  81 #define WRITE_MDIRQ_CFG 0x50    /* Set M&I&DRQ mask (the real config)   */
  82 #define COMMAND_52      0x52    /*                                      */
  83 #define READ_HARD_CFG   0x58    /* Read Hardware Config (I/O base etc)  */
  84 #define COMMAND_5C      0x5c    /*                                      */
  85 #define COMMAND_60      0x60    /*                                      */
  86 #define COMMAND_66      0x66    /*                                      */
  87 #define COMMAND_6C      0x6c    /*                                      */
  88 #define COMMAND_6E      0x6e    /*                                      */
  89 #define COMMAND_88      0x88    /* Unknown command                      */
  90 #define DSP_INIT_MSS    0x8c    /* Enable Microsoft Sound System mode   */
  91 #define COMMAND_C5      0xc5    /*                                      */
  92 #define GET_DSP_VERSION 0xe1    /* Get DSP Version                      */
  93 #define GET_DSP_COPYRIGHT 0xe3  /* Get DSP Copyright                    */
  94
  95 /*
  96  * Offsets of SC6000 DSP I/O ports. The offset is added to base I/O port
  97  * to have the actual I/O port.
  98  * Register permissions are:
  99  * (wo) == Write Only
 100  * (ro) == Read  Only
 101  * (w-) == Write
 102  * (r-) == Read
 103  */
 104 #define DSP_RESET       0x06    /* offset of DSP RESET          (wo) */
 105 #define DSP_READ        0x0a    /* offset of DSP READ           (ro) */
 106 #define DSP_WRITE       0x0c    /* offset of DSP WRITE          (w-) */
 107 #define DSP_COMMAND     0x0c    /* offset of DSP COMMAND        (w-) */
 108 #define DSP_STATUS      0x0c    /* offset of DSP STATUS         (r-) */
 109 #define DSP_DATAVAIL    0x0e    /* offset of DSP DATA AVAILABLE (ro) */
 110
 111 #define PFX "sc6000: "
 112 #define DRV_NAME "SC-6000"
 113
 114 /* hardware dependent functions */
 115
 116 /*
 117  * sc6000_irq_to_softcfg - Decode irq number into cfg code.
 118  */
 119 static __devinit unsigned char sc6000_irq_to_softcfg(int irq)
 120 {
 121         unsigned char val = 0;
 122
 123         switch (irq) {
 124         case 5:
 125                 val = 0x28;
 126                 break;
 127         case 7:
 128                 val = 0x8;
 129                 break;
 130         case 9:
 131                 val = 0x10;
 132                 break;
 133         case 10:
 134                 val = 0x18;
 135                 break;
 136         case 11:
 137                 val = 0x20;
 138                 break;
 139         default:
 140                 break;
 141         }
 142         return val;
 143 }
 144
 145 /*
 146  * sc6000_dma_to_softcfg - Decode dma number into cfg code.
 147  */
 148 static __devinit unsigned char sc6000_dma_to_softcfg(int dma)
 149 {
 150         unsigned char val = 0;
 151
 152         switch (dma) {
 153         case 0:
 154                 val = 1;
 155                 break;
 156         case 1:
 157                 val = 2;
 158                 break;
 159         case 3:
 160                 val = 3;
 161                 break;
 162         default:
 163                 break;
 164         }
 165         return val;
 166 }
 167
 168 /*
 169  * sc6000_mpu_irq_to_softcfg - Decode MPU-401 irq number into cfg code.
 170  */
 171 static __devinit unsigned char sc6000_mpu_irq_to_softcfg(int mpu_irq)
 172 {
 173         unsigned char val = 0;
 174
 175         switch (mpu_irq) {
 176         case 5:
 177                 val = 4;
 178                 break;
 179         case 7:
 180                 val = 0x44;
 181                 break;
 182         case 9:
 183                 val = 0x84;
 184                 break;
 185         case 10:
 186                 val = 0xc4;
 187                 break;
 188         default:
 189                 break;
 190         }
 191         return val;
 192 }
 193
 194 static __devinit int sc6000_wait_data(char __iomem *vport)
 195 {
 196         int loop = 1000;
 197         unsigned char val = 0;
 198
 199         do {
 200                 val = ioread8(vport + DSP_DATAVAIL);
 201                 if (val & 0x80)
 202                         return 0;
 203                 cpu_relax();
 204         } while (loop--);
 205
 206         return -EAGAIN;
 207 }
 208
 209 static __devinit int sc6000_read(char __iomem *vport)
 210 {
 211         if (sc6000_wait_data(vport))
 212                 return -EBUSY;
 213
 214         return ioread8(vport + DSP_READ);
 215
 216 }
 217
 218 static __devinit int sc6000_write(char __iomem *vport, int cmd)
 219 {
 220         unsigned char val;
 221         int loop = 500000;
 222
 223         do {
 224                 val = ioread8(vport + DSP_STATUS);
 225                 /*
 226                  * DSP ready to receive data if bit 7 of val == 0
 227                  */
 228                 if (!(val & 0x80)) {
 229                         iowrite8(cmd, vport + DSP_COMMAND);
 230                         return 0;
 231                 }
 232                 cpu_relax();
 233         } while (loop--);
 234
 235         snd_printk(KERN_ERR "DSP Command (0x%x) timeout.\n", cmd);
 236
 237         return -EIO;
 238 }
 239
 240 static int __devinit sc6000_dsp_get_answer(char __iomem *vport, int command,
 241                                            char *data, int data_len)
 242 {
 243         int len = 0;
 244
 245         if (sc6000_write(vport, command)) {
 246                 snd_printk(KERN_ERR "CMD 0x%x: failed!\n", command);
 247                 return -EIO;
 248         }
 249
 250         do {
 251                 int val = sc6000_read(vport);
 252
 253                 if (val < 0)
 254                         break;
 255
 256                 data[len++] = val;
 257
 258         } while (len < data_len);
 259
 260         /*
 261          * If no more data available, return to the caller, no error if len>0.
 262          * We have no other way to know when the string is finished.
 263          */
 264         return len ? len : -EIO;
 265 }
 266
 267 static int __devinit sc6000_dsp_reset(char __iomem *vport)
 268 {
 269         iowrite8(1, vport + DSP_RESET);
 270         udelay(10);
 271         iowrite8(0, vport + DSP_RESET);
 272         udelay(20);
 273         if (sc6000_read(vport) == 0xaa)
 274                 return 0;
 275         return -ENODEV;
 276 }
 277
 278 /* detection and initialization */
 279 static int __devinit sc6000_cfg_write(char __iomem *vport,
 280                                       unsigned char softcfg)
 281 {
 282
 283         if (sc6000_write(vport, WRITE_MDIRQ_CFG)) {
 284                 snd_printk(KERN_ERR "CMD 0x%x: failed!\n", WRITE_MDIRQ_CFG);
 285                 return -EIO;
 286         }
 287         if (sc6000_write(vport, softcfg)) {
 288                 snd_printk(KERN_ERR "sc6000_cfg_write: failed!\n");
 289                 return -EIO;
 290         }
 291         return 0;
 292 }
 293
 294 static int __devinit sc6000_setup_board(char __iomem *vport, int config)
 295 {
 296         int loop = 10;
 297
 298         do {
 299                 if (sc6000_write(vport, COMMAND_88)) {
 300                         snd_printk(KERN_ERR "CMD 0x%x: failed!\n",
 301                                    COMMAND_88);
 302                         return -EIO;
 303                 }
 304         } while ((sc6000_wait_data(vport) < 0) && loop--);
 305
 306         if (sc6000_read(vport) < 0) {
 307                 snd_printk(KERN_ERR "sc6000_read after CMD 0x%x: failed\n",
 308                            COMMAND_88);
 309                 return -EIO;
 310         }
 311
 312         if (sc6000_cfg_write(vport, config))
 313                 return -ENODEV;
 314
 315         return 0;
 316 }
 317
 318 static int __devinit sc6000_init_mss(char __iomem *vport, int config,
 319                                      char __iomem *vmss_port, int mss_config)
 320 {
 321         if (sc6000_write(vport, DSP_INIT_MSS)) {
 322                 snd_printk(KERN_ERR "sc6000_init_mss [0x%x]: failed!\n",
 323                            DSP_INIT_MSS);
 324                 return -EIO;
 325         }
 326
 327         msleep(10);
 328
 329         if (sc6000_cfg_write(vport, config))
 330                 return -EIO;
 331
 332         iowrite8(mss_config, vmss_port);
 333
 334         return 0;
 335 }
 336
 337 static int __devinit sc6000_init_board(char __iomem *vport, int irq, int dma,
 338                                         char __iomem *vmss_port, int mpu_irq)
 339 {
 340         char answer[15];
 341         char version[2];
 342         int mss_config = sc6000_irq_to_softcfg(irq) |
 343                          sc6000_dma_to_softcfg(dma);
 344         int config = mss_config |
 345                      sc6000_mpu_irq_to_softcfg(mpu_irq);
 346         int err;
 347
 348         err = sc6000_dsp_reset(vport);
 349         if (err < 0) {
 350                 snd_printk(KERN_ERR "sc6000_dsp_reset: failed!\n");
 351                 return err;
 352         }
 353
 354         memset(answer, 0, sizeof(answer));
 355         err = sc6000_dsp_get_answer(vport, GET_DSP_COPYRIGHT, answer, 15);
 356         if (err <= 0) {
 357                 snd_printk(KERN_ERR "sc6000_dsp_copyright: failed!\n");
 358                 return -ENODEV;
 359         }
 360         /*
 361          * My SC-6000 card return "SC-6000" in DSPCopyright, so
 362          * if we have something different, we have to be warned.
 363          * Mine returns "SC-6000A " - KH
 364          */
 365         if (strncmp("SC-6000", answer, 7))
 366                 snd_printk(KERN_WARNING "Warning: non SC-6000 audio card!\n");
 367
 368         if (sc6000_dsp_get_answer(vport, GET_DSP_VERSION, version, 2) < 2) {
 369                 snd_printk(KERN_ERR "sc6000_dsp_version: failed!\n");
 370                 return -ENODEV;
 371         }
 372         printk(KERN_INFO PFX "Detected model: %s, DSP version %d.%d\n",
 373                 answer, version[0], version[1]);
 374
 375         /*
 376          * 0x0A == (IRQ 7, DMA 1, MIRQ 0)
 377          */
 378         err = sc6000_cfg_write(vport, 0x0a);
 379         if (err < 0) {
 380                 snd_printk(KERN_ERR "sc6000_cfg_write: failed!\n");
 381                 return -EFAULT;
 382         }
 383
 384         err = sc6000_setup_board(vport, config);
 385         if (err < 0) {
 386                 snd_printk(KERN_ERR "sc6000_setup_board: failed!\n");
 387                 return -ENODEV;
 388         }
 389
 390         err = sc6000_init_mss(vport, config, vmss_port, mss_config);
 391         if (err < 0) {
 392                 snd_printk(KERN_ERR "Can not initialize "
 393                            "Microsoft Sound System mode.\n");
 394                 return -ENODEV;
 395         }
 396
 397         return 0;
 398 }
 399
 400 static int __devinit snd_sc6000_mixer(struct snd_wss *chip)
 401 {
 402         struct snd_card *card = chip->card;
 403         struct snd_ctl_elem_id id1, id2;
 404         int err;
 405
 406         memset(&id1, 0, sizeof(id1));
 407         memset(&id2, 0, sizeof(id2));
 408         id1.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 409         id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 410         /* reassign AUX0 to FM */
 411         strcpy(id1.name, "Aux Playback Switch");
 412         strcpy(id2.name, "FM Playback Switch");
 413         err = snd_ctl_rename_id(card, &id1, &id2);
 414         if (err < 0)
 415                 return err;
 416         strcpy(id1.name, "Aux Playback Volume");
 417         strcpy(id2.name, "FM Playback Volume");
 418         err = snd_ctl_rename_id(card, &id1, &id2);
 419         if (err < 0)
 420                 return err;
 421         /* reassign AUX1 to CD */
 422         strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
 423         strcpy(id2.name, "CD Playback Switch");
 424         err = snd_ctl_rename_id(card, &id1, &id2);
 425         if (err < 0)
 426                 return err;
 427         strcpy(id1.name, "Aux Playback Volume");
 428         strcpy(id2.name, "CD Playback Volume");
 429         err = snd_ctl_rename_id(card, &id1, &id2);
 430         if (err < 0)
 431                 return err;
 432         return 0;
 433 }
 434
 435 static int __devinit snd_sc6000_match(struct device *devptr, unsigned int dev)
 436 {
 437         if (!enable[dev])
 438                 return 0;
 439         if (port[dev] == SNDRV_AUTO_PORT) {
 440                 printk(KERN_ERR PFX "specify IO port\n");
 441                 return 0;
 442         }
 443         if (mss_port[dev] == SNDRV_AUTO_PORT) {
 444                 printk(KERN_ERR PFX "specify MSS port\n");
 445                 return 0;
 446         }
 447         if (port[dev] != 0x220 && port[dev] != 0x240) {
 448                 printk(KERN_ERR PFX "Port must be 0x220 or 0x240\n");
 449                 return 0;
 450         }
 451         if (mss_port[dev] != 0x530 && mss_port[dev] != 0xe80) {
 452                 printk(KERN_ERR PFX "MSS port must be 0x530 or 0xe80\n");
 453                 return 0;
 454         }
 455         if (irq[dev] != SNDRV_AUTO_IRQ && !sc6000_irq_to_softcfg(irq[dev])) {
 456                 printk(KERN_ERR PFX "invalid IRQ %d\n", irq[dev]);
 457                 return 0;
 458         }
 459         if (dma[dev] != SNDRV_AUTO_DMA && !sc6000_dma_to_softcfg(dma[dev])) {
 460                 printk(KERN_ERR PFX "invalid DMA %d\n", dma[dev]);
 461                 return 0;
 462         }
 463         if (mpu_port[dev] != SNDRV_AUTO_PORT &&
 464             (mpu_port[dev] & ~0x30L) != 0x300) {
 465                 printk(KERN_ERR PFX "invalid MPU-401 port %lx\n",
 466                         mpu_port[dev]);
 467                 return 0;
 468         }
 469         if (mpu_port[dev] != SNDRV_AUTO_PORT &&
 470             mpu_irq[dev] != SNDRV_AUTO_IRQ && mpu_irq[dev] != 0 &&
 471             !sc6000_mpu_irq_to_softcfg(mpu_irq[dev])) {
 472                 printk(KERN_ERR PFX "invalid MPU-401 IRQ %d\n", mpu_irq[dev]);
 473                 return 0;
 474         }
 475         return 1;
 476 }
 477
 478 static int __devinit snd_sc6000_probe(struct device *devptr, unsigned int dev)
 479 {
 480         static int possible_irqs[] = { 5, 7, 9, 10, 11, -1 };
 481         static int possible_dmas[] = { 1, 3, 0, -1 };
 482         int err;
 483         int xirq = irq[dev];
 484         int xdma = dma[dev];
 485         struct snd_card *card;
 486         struct snd_wss *chip;
 487         struct snd_opl3 *opl3;
 488         char __iomem *vport;
 489         char __iomem *vmss_port;
 490
 491
 492         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
 493         if (!card)
 494                 return -ENOMEM;
 495
 496         if (xirq == SNDRV_AUTO_IRQ) {
 497                 xirq = snd_legacy_find_free_irq(possible_irqs);
 498                 if (xirq < 0) {
 499                         snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
 500                         err = -EBUSY;
 501                         goto err_exit;
 502                 }
 503         }
 504
 505         if (xdma == SNDRV_AUTO_DMA) {
 506                 xdma = snd_legacy_find_free_dma(possible_dmas);
 507                 if (xdma < 0) {
 508                         snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
 509                         err = -EBUSY;
 510                         goto err_exit;
 511                 }
 512         }
 513
 514         if (!request_region(port[dev], 0x10, DRV_NAME)) {
 515                 snd_printk(KERN_ERR PFX
 516                            "I/O port region is already in use.\n");
 517                 err = -EBUSY;
 518                 goto err_exit;
 519         }
 520         vport = devm_ioport_map(devptr, port[dev], 0x10);
 521         if (!vport) {
 522                 snd_printk(KERN_ERR PFX
 523                            "I/O port cannot be iomaped.\n");
 524                 err = -EBUSY;
 525                 goto err_unmap1;
 526         }
 527
 528         /* to make it marked as used */
 529         if (!request_region(mss_port[dev], 4, DRV_NAME)) {
 530                 snd_printk(KERN_ERR PFX
 531                            "SC-6000 port I/O port region is already in use.\n");
 532                 err = -EBUSY;
 533                 goto err_unmap1;
 534         }
 535         vmss_port = devm_ioport_map(devptr, mss_port[dev], 4);
 536         if (!vport) {
 537                 snd_printk(KERN_ERR PFX
 538                            "MSS port I/O cannot be iomaped.\n");
 539                 err = -EBUSY;
 540                 goto err_unmap2;
 541         }
 542
 543         snd_printd("Initializing BASE[0x%lx] IRQ[%d] DMA[%d] MIRQ[%d]\n",
 544                    port[dev], xirq, xdma,
 545                    mpu_irq[dev] == SNDRV_AUTO_IRQ ? 0 : mpu_irq[dev]);
 546
 547         err = sc6000_init_board(vport, xirq, xdma, vmss_port, mpu_irq[dev]);
 548         if (err < 0)
 549                 goto err_unmap2;
 550
 551         err = snd_wss_create(card, mss_port[dev] + 4,  -1, xirq, xdma, -1,
 552                              WSS_HW_DETECT, 0, &chip);
 553         if (err < 0)
 554                 goto err_unmap2;
 555         card->private_data = chip;
 556
 557         err = snd_wss_pcm(chip, 0, NULL);
 558         if (err < 0) {
 559                 snd_printk(KERN_ERR PFX
 560                            "error creating new WSS PCM device\n");
 561                 goto err_unmap2;
 562         }
 563         err = snd_wss_mixer(chip);
 564         if (err < 0) {
 565                 snd_printk(KERN_ERR PFX "error creating new WSS mixer\n");
 566                 goto err_unmap2;
 567         }
 568         err = snd_sc6000_mixer(chip);
 569         if (err < 0) {
 570                 snd_printk(KERN_ERR PFX "the mixer rewrite failed\n");
 571                 goto err_unmap2;
 572         }
 573         if (snd_opl3_create(card,
 574                             0x388, 0x388 + 2,
 575                             OPL3_HW_AUTO, 0, &opl3) < 0) {
 576                 snd_printk(KERN_ERR PFX "no OPL device at 0x%x-0x%x ?\n",
 577                            0x388, 0x388 + 2);
 578         } else {
 579                 err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
 580                 if (err < 0)
 581                         goto err_unmap2;
 582         }
 583
 584         if (mpu_port[dev] != SNDRV_AUTO_PORT) {
 585                 if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
 586                         mpu_irq[dev] = -1;
 587                 if (snd_mpu401_uart_new(card, 0,
 588                                         MPU401_HW_MPU401,
 589                                         mpu_port[dev], 0,
 590                                         mpu_irq[dev], IRQF_DISABLED,
 591                                         NULL) < 0)
 592                         snd_printk(KERN_ERR "no MPU-401 device at 0x%lx ?\n",
 593                                         mpu_port[dev]);
 594         }
 595
 596         strcpy(card->driver, DRV_NAME);
 597         strcpy(card->shortname, "SC-6000");
 598         sprintf(card->longname, "Gallant SC-6000 at 0x%lx, irq %d, dma %d",
 599                 mss_port[dev], xirq, xdma);
 600
 601         snd_card_set_dev(card, devptr);
 602
 603         err = snd_card_register(card);
 604         if (err < 0)
 605                 goto err_unmap2;
 606
 607         dev_set_drvdata(devptr, card);
 608         return 0;
 609
 610 err_unmap2:
 611         release_region(mss_port[dev], 4);
 612 err_unmap1:
 613         release_region(port[dev], 0x10);
 614 err_exit:
 615         snd_card_free(card);
 616         return err;
 617 }
 618
 619 static int __devexit snd_sc6000_remove(struct device *devptr, unsigned int dev)
 620 {
 621         release_region(port[dev], 0x10);
 622         release_region(mss_port[dev], 4);
 623
 624         snd_card_free(dev_get_drvdata(devptr));
 625         dev_set_drvdata(devptr, NULL);
 626         return 0;
 627 }
 628
 629 static struct isa_driver snd_sc6000_driver = {
 630         .match          = snd_sc6000_match,
 631         .probe          = snd_sc6000_probe,
 632         .remove         = __devexit_p(snd_sc6000_remove),
 633         /* FIXME: suspend/resume */
 634         .driver         = {
 635                 .name   = DRV_NAME,
 636         },
 637 };
 638
 639
 640 static int __init alsa_card_sc6000_init(void)
 641 {
 642         return isa_register_driver(&snd_sc6000_driver, SNDRV_CARDS);
 643 }
 644
 645 static void __exit alsa_card_sc6000_exit(void)
 646 {
 647         isa_unregister_driver(&snd_sc6000_driver);
 648 }
 649
 650 module_init(alsa_card_sc6000_init)
 651 module_exit(alsa_card_sc6000_exit)