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 <sound/driver.h>
  27 #include <linux/module.h>
  28 #include <linux/delay.h>
  29 #include <linux/isa.h>
  30 #include <linux/io.h>
  31 #include <asm/dma.h>
  32 #include <sound/core.h>
  33 #include <sound/ad1848.h>
  34 #include <sound/opl3.h>
  35 #include <sound/mpu401.h>
  36 #include <sound/control.h>
  37 #define SNDRV_LEGACY_FIND_FREE_IRQ
  38 #define SNDRV_LEGACY_FIND_FREE_DMA
  39 #include <sound/initval.h>
  40
  41 MODULE_AUTHOR("Krzysztof Helt");
  42 MODULE_DESCRIPTION("Gallant SC-6000");
  43 MODULE_LICENSE("GPL");
  44 MODULE_SUPPORTED_DEVICE("{{Gallant, SC-6000},"
  45                         "{AudioExcel, Audio Excel DSP 16},"
  46                         "{Zoltrix, AV302}}");
  47
  48 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  49 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  50 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;  /* Enable this card */
  51 static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;     /* 0x220, 0x240 */
  52 static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;        /* 5, 7, 9, 10, 11 */
  53 static long mss_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x530, 0xe80 */
  54 static long mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
  55                                                 /* 0x300, 0x310, 0x320, 0x330 */
  56 static int mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ;    /* 5, 7, 9, 10, 0 */
  57 static int dma[SNDRV_CARDS] = SNDRV_DEFAULT_DMA;        /* 0, 1, 3 */
  58
  59 module_param_array(index, int, NULL, 0444);
  60 MODULE_PARM_DESC(index, "Index value for sc-6000 based soundcard.");
  61 module_param_array(id, charp, NULL, 0444);
  62 MODULE_PARM_DESC(id, "ID string for sc-6000 based soundcard.");
  63 module_param_array(enable, bool, NULL, 0444);
  64 MODULE_PARM_DESC(enable, "Enable sc-6000 based soundcard.");
  65 module_param_array(port, long, NULL, 0444);
  66 MODULE_PARM_DESC(port, "Port # for sc-6000 driver.");
  67 module_param_array(mss_port, long, NULL, 0444);
  68 MODULE_PARM_DESC(mss_port, "MSS Port # for sc-6000 driver.");
  69 module_param_array(mpu_port, long, NULL, 0444);
  70 MODULE_PARM_DESC(mpu_port, "MPU-401 port # for sc-6000 driver.");
  71 module_param_array(irq, int, NULL, 0444);
  72 MODULE_PARM_DESC(irq, "IRQ # for sc-6000 driver.");
  73 module_param_array(mpu_irq, int, NULL, 0444);
  74 MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for sc-6000 driver.");
  75 module_param_array(dma, int, NULL, 0444);
  76 MODULE_PARM_DESC(dma, "DMA # for sc-6000 driver.");
  77
  78 /*
  79  * Commands of SC6000's DSP (SBPRO+special).
  80  * Some of them are COMMAND_xx, in the future they may change.
  81  */
  82 #define WRITE_MDIRQ_CFG 0x50    /* Set M&I&DRQ mask (the real config)   */
  83 #define COMMAND_52      0x52    /*                                      */
  84 #define READ_HARD_CFG   0x58    /* Read Hardware Config (I/O base etc)  */
  85 #define COMMAND_5C      0x5c    /*                                      */
  86 #define COMMAND_60      0x60    /*                                      */
  87 #define COMMAND_66      0x66    /*                                      */
  88 #define COMMAND_6C      0x6c    /*                                      */
  89 #define COMMAND_6E      0x6e    /*                                      */
  90 #define COMMAND_88      0x88    /* Unknown command                      */
  91 #define DSP_INIT_MSS    0x8c    /* Enable Microsoft Sound System mode   */
  92 #define COMMAND_C5      0xc5    /*                                      */
  93 #define GET_DSP_VERSION 0xe1    /* Get DSP Version                      */
  94 #define GET_DSP_COPYRIGHT 0xe3  /* Get DSP Copyright                    */
  95
  96 /*
  97  * Offsets of SC6000 DSP I/O ports. The offset is added to base I/O port
  98  * to have the actual I/O port.
  99  * Register permissions are:
 100  * (wo) == Write Only
 101  * (ro) == Read  Only
 102  * (w-) == Write
 103  * (r-) == Read
 104  */
 105 #define DSP_RESET       0x06    /* offset of DSP RESET          (wo) */
 106 #define DSP_READ        0x0a    /* offset of DSP READ           (ro) */
 107 #define DSP_WRITE       0x0c    /* offset of DSP WRITE          (w-) */
 108 #define DSP_COMMAND     0x0c    /* offset of DSP COMMAND        (w-) */
 109 #define DSP_STATUS      0x0c    /* offset of DSP STATUS         (r-) */
 110 #define DSP_DATAVAIL    0x0e    /* offset of DSP DATA AVAILABLE (ro) */
 111
 112 #define PFX "sc6000: "
 113 #define DRV_NAME "SC-6000"
 114
 115 /* hardware dependent functions */
 116
 117 /*
 118  * sc6000_irq_to_softcfg - Decode irq number into cfg code.
 119  */
 120 static __devinit unsigned char sc6000_irq_to_softcfg(int irq)
 121 {
 122         unsigned char val = 0;
 123
 124         switch (irq) {
 125         case 5:
 126                 val = 0x28;
 127                 break;
 128         case 7:
 129                 val = 0x8;
 130                 break;
 131         case 9:
 132                 val = 0x10;
 133                 break;
 134         case 10:
 135                 val = 0x18;
 136                 break;
 137         case 11:
 138                 val = 0x20;
 139                 break;
 140         default:
 141                 break;
 142         }
 143         return val;
 144 }
 145
 146 /*
 147  * sc6000_dma_to_softcfg - Decode dma number into cfg code.
 148  */
 149 static __devinit unsigned char sc6000_dma_to_softcfg(int dma)
 150 {
 151         unsigned char val = 0;
 152
 153         switch (dma) {
 154         case 0:
 155                 val = 1;
 156                 break;
 157         case 1:
 158                 val = 2;
 159                 break;
 160         case 3:
 161                 val = 3;
 162                 break;
 163         default:
 164                 break;
 165         }
 166         return val;
 167 }
 168
 169 /*
 170  * sc6000_mpu_irq_to_softcfg - Decode MPU-401 irq number into cfg code.
 171  */
 172 static __devinit unsigned char sc6000_mpu_irq_to_softcfg(int mpu_irq)
 173 {
 174         unsigned char val = 0;
 175
 176         switch (mpu_irq) {
 177         case 5:
 178                 val = 4;
 179                 break;
 180         case 7:
 181                 val = 0x44;
 182                 break;
 183         case 9:
 184                 val = 0x84;
 185                 break;
 186         case 10:
 187                 val = 0xc4;
 188                 break;
 189         default:
 190                 break;
 191         }
 192         return val;
 193 }
 194
 195 static __devinit int sc6000_wait_data(char __iomem *vport)
 196 {
 197         int loop = 1000;
 198         unsigned char val = 0;
 199
 200         do {
 201                 val = ioread8(vport + DSP_DATAVAIL);
 202                 if (val & 0x80)
 203                         return 0;
 204                 cpu_relax();
 205         } while (loop--);
 206
 207         return -EAGAIN;
 208 }
 209
 210 static __devinit int sc6000_read(char __iomem *vport)
 211 {
 212         if (sc6000_wait_data(vport))
 213                 return -EBUSY;
 214
 215         return ioread8(vport + DSP_READ);
 216
 217 }
 218
 219 static __devinit int sc6000_write(char __iomem *vport, int cmd)
 220 {
 221         unsigned char val;
 222         int loop = 500000;
 223
 224         do {
 225                 val = ioread8(vport + DSP_STATUS);
 226                 /*
 227                  * DSP ready to receive data if bit 7 of val == 0
 228                  */
 229                 if (!(val & 0x80)) {
 230                         iowrite8(cmd, vport + DSP_COMMAND);
 231                         return 0;
 232                 }
 233                 cpu_relax();
 234         } while (loop--);
 235
 236         snd_printk(KERN_ERR "DSP Command (0x%x) timeout.\n", cmd);
 237
 238         return -EIO;
 239 }
 240
 241 static int __devinit sc6000_dsp_get_answer(char __iomem *vport, int command,
 242                                            char *data, int data_len)
 243 {
 244         int len = 0;
 245
 246         if (sc6000_write(vport, command)) {
 247                 snd_printk(KERN_ERR "CMD 0x%x: failed!\n", command);
 248                 return -EIO;
 249         }
 250
 251         do {
 252                 int val = sc6000_read(vport);
 253
 254                 if (val < 0)
 255                         break;
 256
 257                 data[len++] = val;
 258
 259         } while (len < data_len);
 260
 261         /*
 262          * If no more data available, return to the caller, no error if len>0.
 263          * We have no other way to know when the string is finished.
 264          */
 265         return len ? len : -EIO;
 266 }
 267
 268 static int __devinit sc6000_dsp_reset(char __iomem *vport)
 269 {
 270         iowrite8(1, vport + DSP_RESET);
 271         udelay(10);
 272         iowrite8(0, vport + DSP_RESET);
 273         udelay(20);
 274         if (sc6000_read(vport) == 0xaa)
 275                 return 0;
 276         return -ENODEV;
 277 }
 278
 279 /* detection and initialization */
 280 static int __devinit sc6000_cfg_write(char __iomem *vport,
 281                                       unsigned char softcfg)
 282 {
 283
 284         if (sc6000_write(vport, WRITE_MDIRQ_CFG)) {
 285                 snd_printk(KERN_ERR "CMD 0x%x: failed!\n", WRITE_MDIRQ_CFG);
 286                 return -EIO;
 287         }
 288         if (sc6000_write(vport, softcfg)) {
 289                 snd_printk(KERN_ERR "sc6000_cfg_write: failed!\n");
 290                 return -EIO;
 291         }
 292         return 0;
 293 }
 294
 295 static int __devinit sc6000_setup_board(char __iomem *vport, int config)
 296 {
 297         int loop = 10;
 298
 299         do {
 300                 if (sc6000_write(vport, COMMAND_88)) {
 301                         snd_printk(KERN_ERR "CMD 0x%x: failed!\n",
 302                                    COMMAND_88);
 303                         return -EIO;
 304                 }
 305         } while ((sc6000_wait_data(vport) < 0) && loop--);
 306
 307         if (sc6000_read(vport) < 0) {
 308                 snd_printk(KERN_ERR "sc6000_read after CMD 0x%x: failed\n",
 309                            COMMAND_88);
 310                 return -EIO;
 311         }
 312
 313         if (sc6000_cfg_write(vport, config))
 314                 return -ENODEV;
 315
 316         return 0;
 317 }
 318
 319 static int __devinit sc6000_init_mss(char __iomem *vport, int config,
 320                                      char __iomem *vmss_port, int mss_config)
 321 {
 322         if (sc6000_write(vport, DSP_INIT_MSS)) {
 323                 snd_printk(KERN_ERR "sc6000_init_mss [0x%x]: failed!\n",
 324                            DSP_INIT_MSS);
 325                 return -EIO;
 326         }
 327
 328         msleep(10);
 329
 330         if (sc6000_cfg_write(vport, config))
 331                 return -EIO;
 332
 333         iowrite8(mss_config, vmss_port);
 334
 335         return 0;
 336 }
 337
 338 static int __devinit sc6000_init_board(char __iomem *vport, int irq, int dma,
 339                                         char __iomem *vmss_port, int mpu_irq)
 340 {
 341         char answer[15];
 342         char version[2];
 343         int mss_config = sc6000_irq_to_softcfg(irq) |
 344                          sc6000_dma_to_softcfg(dma);
 345         int config = mss_config |
 346                      sc6000_mpu_irq_to_softcfg(mpu_irq);
 347         int err;
 348
 349         err = sc6000_dsp_reset(vport);
 350         if (err < 0) {
 351                 snd_printk(KERN_ERR "sc6000_dsp_reset: failed!\n");
 352                 return err;
 353         }
 354
 355         memset(answer, 0, sizeof(answer));
 356         err = sc6000_dsp_get_answer(vport, GET_DSP_COPYRIGHT, answer, 15);
 357         if (err <= 0) {
 358                 snd_printk(KERN_ERR "sc6000_dsp_copyright: failed!\n");
 359                 return -ENODEV;
 360         }
 361         /*
 362          * My SC-6000 card return "SC-6000" in DSPCopyright, so
 363          * if we have something different, we have to be warned.
 364          * Mine returns "SC-6000A " - KH
 365          */
 366         if (strncmp("SC-6000", answer, 7))
 367                 snd_printk(KERN_WARNING "Warning: non SC-6000 audio card!\n");
 368
 369         if (sc6000_dsp_get_answer(vport, GET_DSP_VERSION, version, 2) < 2) {
 370                 snd_printk(KERN_ERR "sc6000_dsp_version: failed!\n");
 371                 return -ENODEV;
 372         }
 373         printk(KERN_INFO PFX "Detected model: %s, DSP version %d.%d\n",
 374                 answer, version[0], version[1]);
 375
 376         /*
 377          * 0x0A == (IRQ 7, DMA 1, MIRQ 0)
 378          */
 379         err = sc6000_cfg_write(vport, 0x0a);
 380         if (err < 0) {
 381                 snd_printk(KERN_ERR "sc6000_cfg_write: failed!\n");
 382                 return -EFAULT;
 383         }
 384
 385         err = sc6000_setup_board(vport, config);
 386         if (err < 0) {
 387                 snd_printk(KERN_ERR "sc6000_setup_board: failed!\n");
 388                 return -ENODEV;
 389         }
 390
 391         err = sc6000_init_mss(vport, config, vmss_port, mss_config);
 392         if (err < 0) {
 393                 snd_printk(KERN_ERR "Can not initialize"
 394                            "Microsoft Sound System mode.\n");
 395                 return -ENODEV;
 396         }
 397
 398         return 0;
 399 }
 400
 401 static int __devinit snd_sc6000_mixer(struct snd_ad1848 *chip)
 402 {
 403         struct snd_card *card = chip->card;
 404         struct snd_ctl_elem_id id1, id2;
 405         int err;
 406
 407         memset(&id1, 0, sizeof(id1));
 408         memset(&id2, 0, sizeof(id2));
 409         id1.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 410         id2.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 411         /* reassign AUX0 to FM */
 412         strcpy(id1.name, "Aux Playback Switch");
 413         strcpy(id2.name, "FM Playback Switch");
 414         err = snd_ctl_rename_id(card, &id1, &id2);
 415         if (err < 0)
 416                 return err;
 417         strcpy(id1.name, "Aux Playback Volume");
 418         strcpy(id2.name, "FM Playback Volume");
 419         err = snd_ctl_rename_id(card, &id1, &id2);
 420         if (err < 0)
 421                 return err;
 422         /* reassign AUX1 to CD */
 423         strcpy(id1.name, "Aux Playback Switch"); id1.index = 1;
 424         strcpy(id2.name, "CD Playback Switch");
 425         err = snd_ctl_rename_id(card, &id1, &id2);
 426         if (err < 0)
 427                 return err;
 428         strcpy(id1.name, "Aux Playback Volume");
 429         strcpy(id2.name, "CD Playback Volume");
 430         err = snd_ctl_rename_id(card, &id1, &id2);
 431         if (err < 0)
 432                 return err;
 433         return 0;
 434 }
 435
 436 static int __devinit snd_sc6000_match(struct device *devptr, unsigned int dev)
 437 {
 438         if (!enable[dev])
 439                 return 0;
 440         if (port[dev] == SNDRV_AUTO_PORT) {
 441                 printk(KERN_ERR PFX "specify IO port\n");
 442                 return 0;
 443         }
 444         if (mss_port[dev] == SNDRV_AUTO_PORT) {
 445                 printk(KERN_ERR PFX "specify MSS port\n");
 446                 return 0;
 447         }
 448         if (port[dev] != 0x220 && port[dev] != 0x240) {
 449                 printk(KERN_ERR PFX "Port must be 0x220 or 0x240\n");
 450                 return 0;
 451         }
 452         if (mss_port[dev] != 0x530 && mss_port[dev] != 0xe80) {
 453                 printk(KERN_ERR PFX "MSS port must be 0x530 or 0xe80\n");
 454                 return 0;
 455         }
 456         if (irq[dev] != SNDRV_AUTO_IRQ && !sc6000_irq_to_softcfg(irq[dev])) {
 457                 printk(KERN_ERR PFX "invalid IRQ %d\n", irq[dev]);
 458                 return 0;
 459         }
 460         if (dma[dev] != SNDRV_AUTO_DMA && !sc6000_dma_to_softcfg(dma[dev])) {
 461                 printk(KERN_ERR PFX "invalid DMA %d\n", dma[dev]);
 462                 return 0;
 463         }
 464         if (mpu_port[dev] != SNDRV_AUTO_PORT &&
 465             (mpu_port[dev] & ~0x30L) != 0x300) {
 466                 printk(KERN_ERR PFX "invalid MPU-401 port %lx\n",
 467                         mpu_port[dev]);
 468                 return 0;
 469         }
 470         if (mpu_port[dev] != SNDRV_AUTO_PORT &&
 471             mpu_irq[dev] != SNDRV_AUTO_IRQ && mpu_irq[dev] != 0 &&
 472             !sc6000_mpu_irq_to_softcfg(mpu_irq[dev])) {
 473                 printk(KERN_ERR PFX "invalid MPU-401 IRQ %d\n", mpu_irq[dev]);
 474                 return 0;
 475         }
 476         return 1;
 477 }
 478
 479 static int __devinit snd_sc6000_probe(struct device *devptr, unsigned int dev)
 480 {
 481         static int possible_irqs[] = { 5, 7, 9, 10, 11, -1 };
 482         static int possible_dmas[] = { 1, 3, 0, -1 };
 483         int err;
 484         int xirq = irq[dev];
 485         int xdma = dma[dev];
 486         struct snd_card *card;
 487         struct snd_ad1848 *chip;
 488         struct snd_opl3 *opl3;
 489         char __iomem *vport;
 490         char __iomem *vmss_port;
 491
 492
 493         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
 494         if (!card)
 495                 return -ENOMEM;
 496
 497         if (xirq == SNDRV_AUTO_IRQ) {
 498                 xirq = snd_legacy_find_free_irq(possible_irqs);
 499                 if (xirq < 0) {
 500                         snd_printk(KERN_ERR PFX "unable to find a free IRQ\n");
 501                         err = -EBUSY;
 502                         goto err_exit;
 503                 }
 504         }
 505
 506         if (xdma == SNDRV_AUTO_DMA) {
 507                 xdma = snd_legacy_find_free_dma(possible_dmas);
 508                 if (xdma < 0) {
 509                         snd_printk(KERN_ERR PFX "unable to find a free DMA\n");
 510                         err = -EBUSY;
 511                         goto err_exit;
 512                 }
 513         }
 514
 515         if (!request_region(port[dev], 0x10, DRV_NAME)) {
 516                 snd_printk(KERN_ERR PFX
 517                            "I/O port region is already in use.\n");
 518                 err = -EBUSY;
 519                 goto err_exit;
 520         }
 521         vport = devm_ioport_map(devptr, port[dev], 0x10);
 522         if (!vport) {
 523                 snd_printk(KERN_ERR PFX
 524                            "I/O port cannot be iomaped.\n");
 525                 err = -EBUSY;
 526                 goto err_unmap1;
 527         }
 528
 529         /* to make it marked as used */
 530         if (!request_region(mss_port[dev], 4, DRV_NAME)) {
 531                 snd_printk(KERN_ERR PFX
 532                            "SC-6000 port I/O port region is already in use.\n");
 533                 err = -EBUSY;
 534                 goto err_unmap1;
 535         }
 536         vmss_port = devm_ioport_map(devptr, mss_port[dev], 4);
 537         if (!vport) {
 538                 snd_printk(KERN_ERR PFX
 539                            "MSS port I/O cannot be iomaped.\n");
 540                 err = -EBUSY;
 541                 goto err_unmap2;
 542         }
 543
 544         snd_printd("Initializing BASE[0x%lx] IRQ[%d] DMA[%d] MIRQ[%d]\n",
 545                    port[dev], xirq, xdma,
 546                    mpu_irq[dev] == SNDRV_AUTO_IRQ ? 0 : mpu_irq[dev]);
 547
 548         err = sc6000_init_board(vport, xirq, xdma, vmss_port, mpu_irq[dev]);
 549         if (err < 0)
 550                 goto err_unmap2;
 551
 552         err = snd_ad1848_create(card, mss_port[dev] + 4, xirq, xdma,
 553                                 AD1848_HW_DETECT, &chip);
 554         if (err < 0)
 555                 goto err_unmap2;
 556         card->private_data = chip;
 557
 558         err = snd_ad1848_pcm(chip, 0, NULL);
 559         if (err < 0) {
 560                 snd_printk(KERN_ERR PFX
 561                            "error creating new ad1848 PCM device\n");
 562                 goto err_unmap2;
 563         }
 564         err = snd_ad1848_mixer(chip);
 565         if (err < 0) {
 566                 snd_printk(KERN_ERR PFX "error creating new ad1848 mixer\n");
 567                 goto err_unmap2;
 568         }
 569         err = snd_sc6000_mixer(chip);
 570         if (err < 0) {
 571                 snd_printk(KERN_ERR PFX "the mixer rewrite failed\n");
 572                 goto err_unmap2;
 573         }
 574         if (snd_opl3_create(card,
 575                             0x388, 0x388 + 2,
 576                             OPL3_HW_AUTO, 0, &opl3) < 0) {
 577                 snd_printk(KERN_ERR PFX "no OPL device at 0x%x-0x%x ?\n",
 578                            0x388, 0x388 + 2);
 579         } else {
 580                 err = snd_opl3_timer_new(opl3, 0, 1);
 581                 if (err < 0)
 582                         goto err_unmap2;
 583
 584                 err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
 585                 if (err < 0)
 586                         goto err_unmap2;
 587         }
 588
 589         if (mpu_port[dev] != SNDRV_AUTO_PORT) {
 590                 if (mpu_irq[dev] == SNDRV_AUTO_IRQ)
 591                         mpu_irq[dev] = -1;
 592                 if (snd_mpu401_uart_new(card, 0,
 593                                         MPU401_HW_MPU401,
 594                                         mpu_port[dev], 0,
 595                                         mpu_irq[dev], IRQF_DISABLED,
 596                                         NULL) < 0)
 597                         snd_printk(KERN_ERR "no MPU-401 device at 0x%lx ?\n",
 598                                         mpu_port[dev]);
 599         }
 600
 601         strcpy(card->driver, DRV_NAME);
 602         strcpy(card->shortname, "SC-6000");
 603         sprintf(card->longname, "Gallant SC-6000 at 0x%lx, irq %d, dma %d",
 604                 mss_port[dev], xirq, xdma);
 605
 606         snd_card_set_dev(card, devptr);
 607
 608         err = snd_card_register(card);
 609         if (err < 0)
 610                 goto err_unmap2;
 611
 612         dev_set_drvdata(devptr, card);
 613         return 0;
 614
 615 err_unmap2:
 616         release_region(mss_port[dev], 4);
 617 err_unmap1:
 618         release_region(port[dev], 0x10);
 619 err_exit:
 620         snd_card_free(card);
 621         return err;
 622 }
 623
 624 static int __devexit snd_sc6000_remove(struct device *devptr, unsigned int dev)
 625 {
 626         release_region(port[dev], 0x10);
 627         release_region(mss_port[dev], 4);
 628
 629         snd_card_free(dev_get_drvdata(devptr));
 630         dev_set_drvdata(devptr, NULL);
 631         return 0;
 632 }
 633
 634 static struct isa_driver snd_sc6000_driver = {
 635         .match          = snd_sc6000_match,
 636         .probe          = snd_sc6000_probe,
 637         .remove         = __devexit_p(snd_sc6000_remove),
 638         /* FIXME: suspend/resume */
 639         .driver         = {
 640                 .name   = DRV_NAME,
 641         },
 642 };
 643
 644
 645 static int __init alsa_card_sc6000_init(void)
 646 {
 647         return isa_register_driver(&snd_sc6000_driver, SNDRV_CARDS);
 648 }
 649
 650 static void __exit alsa_card_sc6000_exit(void)
 651 {
 652         isa_unregister_driver(&snd_sc6000_driver);
 653 }
 654
 655 module_init(alsa_card_sc6000_init)
 656 module_exit(alsa_card_sc6000_exit)