1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * ALSA card-level driver for Turtle Beach Wavefront cards 4 * (Maui,Tropez,Tropez+) 5 * 6 * Copyright (c) 1997-1999 by Paul Barton-Davis <pbd@op.net> 7 */ 8 9 #include <linux/init.h> 10 #include <linux/interrupt.h> 11 #include <linux/err.h> 12 #include <linux/isa.h> 13 #include <linux/pnp.h> 14 #include <linux/module.h> 15 #include <sound/core.h> 16 #include <sound/initval.h> 17 #include <sound/opl3.h> 18 #include <sound/wss.h> 19 #include <sound/snd_wavefront.h> 20 21 MODULE_AUTHOR("Paul Barton-Davis <pbd@op.net>"); 22 MODULE_DESCRIPTION("Turtle Beach Wavefront"); 23 MODULE_LICENSE("GPL"); 24 25 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 26 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 27 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ 28 #ifdef CONFIG_PNP 29 static bool isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1}; 30 #endif 31 static long cs4232_pcm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ 32 static int cs4232_pcm_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */ 33 static long cs4232_mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ 34 static int cs4232_mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 9,11,12,15 */ 35 static long ics2115_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ 36 static int ics2115_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 2,9,11,12,15 */ 37 static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ 38 static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ 39 static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ 40 static bool use_cs4232_midi[SNDRV_CARDS]; 41 42 module_param_array(index, int, NULL, 0444); 43 MODULE_PARM_DESC(index, "Index value for WaveFront soundcard."); 44 module_param_array(id, charp, NULL, 0444); 45 MODULE_PARM_DESC(id, "ID string for WaveFront soundcard."); 46 module_param_array(enable, bool, NULL, 0444); 47 MODULE_PARM_DESC(enable, "Enable WaveFront soundcard."); 48 #ifdef CONFIG_PNP 49 module_param_array(isapnp, bool, NULL, 0444); 50 MODULE_PARM_DESC(isapnp, "ISA PnP detection for WaveFront soundcards."); 51 #endif 52 module_param_hw_array(cs4232_pcm_port, long, ioport, NULL, 0444); 53 MODULE_PARM_DESC(cs4232_pcm_port, "Port # for CS4232 PCM interface."); 54 module_param_hw_array(cs4232_pcm_irq, int, irq, NULL, 0444); 55 MODULE_PARM_DESC(cs4232_pcm_irq, "IRQ # for CS4232 PCM interface."); 56 module_param_hw_array(dma1, int, dma, NULL, 0444); 57 MODULE_PARM_DESC(dma1, "DMA1 # for CS4232 PCM interface."); 58 module_param_hw_array(dma2, int, dma, NULL, 0444); 59 MODULE_PARM_DESC(dma2, "DMA2 # for CS4232 PCM interface."); 60 module_param_hw_array(cs4232_mpu_port, long, ioport, NULL, 0444); 61 MODULE_PARM_DESC(cs4232_mpu_port, "port # for CS4232 MPU-401 interface."); 62 module_param_hw_array(cs4232_mpu_irq, int, irq, NULL, 0444); 63 MODULE_PARM_DESC(cs4232_mpu_irq, "IRQ # for CS4232 MPU-401 interface."); 64 module_param_hw_array(ics2115_irq, int, irq, NULL, 0444); 65 MODULE_PARM_DESC(ics2115_irq, "IRQ # for ICS2115."); 66 module_param_hw_array(ics2115_port, long, ioport, NULL, 0444); 67 MODULE_PARM_DESC(ics2115_port, "Port # for ICS2115."); 68 module_param_hw_array(fm_port, long, ioport, NULL, 0444); 69 MODULE_PARM_DESC(fm_port, "FM port #."); 70 module_param_array(use_cs4232_midi, bool, NULL, 0444); 71 MODULE_PARM_DESC(use_cs4232_midi, "Use CS4232 MPU-401 interface (inaccessibly located inside your computer)"); 72 73 #ifdef CONFIG_PNP 74 static int isa_registered; 75 static int pnp_registered; 76 77 static const struct pnp_card_device_id snd_wavefront_pnpids[] = { 78 /* Tropez */ 79 { .id = "CSC7532", .devs = { { "CSC0000" }, { "CSC0010" }, { "PnPb006" }, { "CSC0004" } } }, 80 /* Tropez+ */ 81 { .id = "CSC7632", .devs = { { "CSC0000" }, { "CSC0010" }, { "PnPb006" }, { "CSC0004" } } }, 82 { .id = "" } 83 }; 84 85 MODULE_DEVICE_TABLE(pnp_card, snd_wavefront_pnpids); 86 87 static int 88 snd_wavefront_pnp (int dev, snd_wavefront_card_t *acard, struct pnp_card_link *card, 89 const struct pnp_card_device_id *id) 90 { 91 struct pnp_dev *pdev; 92 int err; 93 94 /* Check for each logical device. */ 95 96 /* CS4232 chip (aka "windows sound system") is logical device 0 */ 97 98 acard->wss = pnp_request_card_device(card, id->devs[0].id, NULL); 99 if (acard->wss == NULL) 100 return -EBUSY; 101 102 /* there is a game port at logical device 1, but we ignore it completely */ 103 104 /* the control interface is logical device 2, but we ignore it 105 completely. in fact, nobody even seems to know what it 106 does. 107 */ 108 109 /* Only configure the CS4232 MIDI interface if its been 110 specifically requested. It is logical device 3. 111 */ 112 113 if (use_cs4232_midi[dev]) { 114 acard->mpu = pnp_request_card_device(card, id->devs[2].id, NULL); 115 if (acard->mpu == NULL) 116 return -EBUSY; 117 } 118 119 /* The ICS2115 synth is logical device 4 */ 120 121 acard->synth = pnp_request_card_device(card, id->devs[3].id, NULL); 122 if (acard->synth == NULL) 123 return -EBUSY; 124 125 /* PCM/FM initialization */ 126 127 pdev = acard->wss; 128 129 /* An interesting note from the Tropez+ FAQ: 130 131 Q. [Ports] Why is the base address of the WSS I/O ports off by 4? 132 133 A. WSS I/O requires a block of 8 I/O addresses ("ports"). Of these, the first 134 4 are used to identify and configure the board. With the advent of PnP, 135 these first 4 addresses have become obsolete, and software applications 136 only use the last 4 addresses to control the codec chip. Therefore, the 137 base address setting "skips past" the 4 unused addresses. 138 139 */ 140 141 err = pnp_activate_dev(pdev); 142 if (err < 0) { 143 dev_err(&pdev->dev, "PnP WSS pnp configure failure\n"); 144 return err; 145 } 146 147 cs4232_pcm_port[dev] = pnp_port_start(pdev, 0); 148 fm_port[dev] = pnp_port_start(pdev, 1); 149 dma1[dev] = pnp_dma(pdev, 0); 150 dma2[dev] = pnp_dma(pdev, 1); 151 cs4232_pcm_irq[dev] = pnp_irq(pdev, 0); 152 153 /* Synth initialization */ 154 155 pdev = acard->synth; 156 157 err = pnp_activate_dev(pdev); 158 if (err < 0) { 159 dev_err(&pdev->dev, "PnP ICS2115 pnp configure failure\n"); 160 return err; 161 } 162 163 ics2115_port[dev] = pnp_port_start(pdev, 0); 164 ics2115_irq[dev] = pnp_irq(pdev, 0); 165 166 /* CS4232 MPU initialization. Configure this only if 167 explicitly requested, since its physically inaccessible and 168 consumes another IRQ. 169 */ 170 171 if (use_cs4232_midi[dev]) { 172 173 pdev = acard->mpu; 174 175 err = pnp_activate_dev(pdev); 176 if (err < 0) { 177 dev_err(&pdev->dev, "PnP MPU401 pnp configure failure\n"); 178 cs4232_mpu_port[dev] = SNDRV_AUTO_PORT; 179 } else { 180 cs4232_mpu_port[dev] = pnp_port_start(pdev, 0); 181 cs4232_mpu_irq[dev] = pnp_irq(pdev, 0); 182 } 183 184 dev_info(&pdev->dev, "CS4232 MPU: port=0x%lx, irq=%i\n", 185 cs4232_mpu_port[dev], 186 cs4232_mpu_irq[dev]); 187 } 188 189 dev_dbg(&pdev->dev, 190 "CS4232: pcm port=0x%lx, fm port=0x%lx, dma1=%i, dma2=%i, irq=%i\nICS2115: port=0x%lx, irq=%i\n", 191 cs4232_pcm_port[dev], 192 fm_port[dev], 193 dma1[dev], 194 dma2[dev], 195 cs4232_pcm_irq[dev], 196 ics2115_port[dev], 197 ics2115_irq[dev]); 198 199 return 0; 200 } 201 202 #endif /* CONFIG_PNP */ 203 204 static irqreturn_t snd_wavefront_ics2115_interrupt(int irq, void *dev_id) 205 { 206 snd_wavefront_card_t *acard; 207 208 acard = (snd_wavefront_card_t *) dev_id; 209 210 if (acard == NULL) 211 return IRQ_NONE; 212 213 if (acard->wavefront.interrupts_are_midi) { 214 snd_wavefront_midi_interrupt (acard); 215 } else { 216 snd_wavefront_internal_interrupt (acard); 217 } 218 return IRQ_HANDLED; 219 } 220 221 static struct snd_hwdep *snd_wavefront_new_synth(struct snd_card *card, 222 int hw_dev, 223 snd_wavefront_card_t *acard) 224 { 225 struct snd_hwdep *wavefront_synth; 226 227 if (snd_wavefront_detect (acard) < 0) { 228 return NULL; 229 } 230 231 if (snd_wavefront_start (&acard->wavefront) < 0) { 232 return NULL; 233 } 234 235 if (snd_hwdep_new(card, "WaveFront", hw_dev, &wavefront_synth) < 0) 236 return NULL; 237 strcpy (wavefront_synth->name, 238 "WaveFront (ICS2115) wavetable synthesizer"); 239 wavefront_synth->ops.open = snd_wavefront_synth_open; 240 wavefront_synth->ops.release = snd_wavefront_synth_release; 241 wavefront_synth->ops.ioctl = snd_wavefront_synth_ioctl; 242 243 return wavefront_synth; 244 } 245 246 static struct snd_hwdep *snd_wavefront_new_fx(struct snd_card *card, 247 int hw_dev, 248 snd_wavefront_card_t *acard, 249 unsigned long port) 250 251 { 252 struct snd_hwdep *fx_processor; 253 254 if (snd_wavefront_fx_start (&acard->wavefront)) { 255 dev_err(card->dev, "cannot initialize YSS225 FX processor"); 256 return NULL; 257 } 258 259 if (snd_hwdep_new (card, "YSS225", hw_dev, &fx_processor) < 0) 260 return NULL; 261 sprintf (fx_processor->name, "YSS225 FX Processor at 0x%lx", port); 262 fx_processor->ops.open = snd_wavefront_fx_open; 263 fx_processor->ops.release = snd_wavefront_fx_release; 264 fx_processor->ops.ioctl = snd_wavefront_fx_ioctl; 265 266 return fx_processor; 267 } 268 269 static snd_wavefront_mpu_id internal_id = internal_mpu; 270 static snd_wavefront_mpu_id external_id = external_mpu; 271 272 static struct snd_rawmidi *snd_wavefront_new_midi(struct snd_card *card, 273 int midi_dev, 274 snd_wavefront_card_t *acard, 275 unsigned long port, 276 snd_wavefront_mpu_id mpu) 277 278 { 279 struct snd_rawmidi *rmidi; 280 static int first = 1; 281 282 if (first) { 283 first = 0; 284 acard->wavefront.midi.base = port; 285 if (snd_wavefront_midi_start (acard)) { 286 dev_err(card->dev, "cannot initialize MIDI interface\n"); 287 return NULL; 288 } 289 } 290 291 if (snd_rawmidi_new (card, "WaveFront MIDI", midi_dev, 1, 1, &rmidi) < 0) 292 return NULL; 293 294 if (mpu == internal_mpu) { 295 strcpy(rmidi->name, "WaveFront MIDI (Internal)"); 296 rmidi->private_data = &internal_id; 297 } else { 298 strcpy(rmidi->name, "WaveFront MIDI (External)"); 299 rmidi->private_data = &external_id; 300 } 301 302 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_wavefront_midi_output); 303 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_wavefront_midi_input); 304 305 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | 306 SNDRV_RAWMIDI_INFO_INPUT | 307 SNDRV_RAWMIDI_INFO_DUPLEX; 308 309 return rmidi; 310 } 311 312 static int snd_wavefront_card_new(struct device *pdev, int dev, 313 struct snd_card **cardp) 314 { 315 struct snd_card *card; 316 snd_wavefront_card_t *acard; 317 int err; 318 319 err = snd_devm_card_new(pdev, index[dev], id[dev], THIS_MODULE, 320 sizeof(snd_wavefront_card_t), &card); 321 if (err < 0) 322 return err; 323 324 acard = card->private_data; 325 acard->wavefront.irq = -1; 326 spin_lock_init(&acard->wavefront.irq_lock); 327 init_waitqueue_head(&acard->wavefront.interrupt_sleeper); 328 spin_lock_init(&acard->wavefront.midi.open); 329 spin_lock_init(&acard->wavefront.midi.virtual); 330 acard->wavefront.card = card; 331 332 *cardp = card; 333 return 0; 334 } 335 336 static int 337 snd_wavefront_probe (struct snd_card *card, int dev) 338 { 339 snd_wavefront_card_t *acard = card->private_data; 340 struct snd_wss *chip; 341 struct snd_hwdep *wavefront_synth; 342 struct snd_rawmidi *ics2115_internal_rmidi = NULL; 343 struct snd_rawmidi *ics2115_external_rmidi = NULL; 344 struct snd_hwdep *fx_processor; 345 int hw_dev = 0, midi_dev = 0, err; 346 347 /* --------- PCM --------------- */ 348 349 err = snd_wss_create(card, cs4232_pcm_port[dev], -1, 350 cs4232_pcm_irq[dev], dma1[dev], dma2[dev], 351 WSS_HW_DETECT, 0, &chip); 352 if (err < 0) { 353 dev_err(card->dev, "can't allocate WSS device\n"); 354 return err; 355 } 356 357 err = snd_wss_pcm(chip, 0); 358 if (err < 0) 359 return err; 360 361 err = snd_wss_timer(chip, 0); 362 if (err < 0) 363 return err; 364 365 /* ---------- OPL3 synth --------- */ 366 367 if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) { 368 struct snd_opl3 *opl3; 369 370 err = snd_opl3_create(card, fm_port[dev], fm_port[dev] + 2, 371 OPL3_HW_OPL3_CS, 0, &opl3); 372 if (err < 0) { 373 dev_err(card->dev, "can't allocate or detect OPL3 synth\n"); 374 return err; 375 } 376 377 err = snd_opl3_hwdep_new(opl3, hw_dev, 1, NULL); 378 if (err < 0) 379 return err; 380 hw_dev++; 381 } 382 383 /* ------- ICS2115 Wavetable synth ------- */ 384 385 acard->wavefront.res_base = 386 devm_request_region(card->dev, ics2115_port[dev], 16, 387 "ICS2115"); 388 if (acard->wavefront.res_base == NULL) { 389 dev_err(card->dev, "unable to grab ICS2115 i/o region 0x%lx-0x%lx\n", 390 ics2115_port[dev], ics2115_port[dev] + 16 - 1); 391 return -EBUSY; 392 } 393 if (devm_request_irq(card->dev, ics2115_irq[dev], 394 snd_wavefront_ics2115_interrupt, 395 0, "ICS2115", acard)) { 396 dev_err(card->dev, "unable to use ICS2115 IRQ %d\n", ics2115_irq[dev]); 397 return -EBUSY; 398 } 399 400 acard->wavefront.irq = ics2115_irq[dev]; 401 card->sync_irq = acard->wavefront.irq; 402 acard->wavefront.base = ics2115_port[dev]; 403 404 wavefront_synth = snd_wavefront_new_synth(card, hw_dev, acard); 405 if (wavefront_synth == NULL) { 406 dev_err(card->dev, "can't create WaveFront synth device\n"); 407 return -ENOMEM; 408 } 409 410 strcpy (wavefront_synth->name, "ICS2115 Wavetable MIDI Synthesizer"); 411 wavefront_synth->iface = SNDRV_HWDEP_IFACE_ICS2115; 412 hw_dev++; 413 414 /* --------- Mixer ------------ */ 415 416 err = snd_wss_mixer(chip); 417 if (err < 0) { 418 dev_err(card->dev, "can't allocate mixer device\n"); 419 return err; 420 } 421 422 /* -------- CS4232 MPU-401 interface -------- */ 423 424 if (cs4232_mpu_port[dev] > 0 && cs4232_mpu_port[dev] != SNDRV_AUTO_PORT) { 425 err = snd_mpu401_uart_new(card, midi_dev, MPU401_HW_CS4232, 426 cs4232_mpu_port[dev], 0, 427 cs4232_mpu_irq[dev], NULL); 428 if (err < 0) { 429 dev_err(card->dev, "can't allocate CS4232 MPU-401 device\n"); 430 return err; 431 } 432 midi_dev++; 433 } 434 435 /* ------ ICS2115 internal MIDI ------------ */ 436 437 if (ics2115_port[dev] > 0 && ics2115_port[dev] != SNDRV_AUTO_PORT) { 438 ics2115_internal_rmidi = 439 snd_wavefront_new_midi (card, 440 midi_dev, 441 acard, 442 ics2115_port[dev], 443 internal_mpu); 444 if (ics2115_internal_rmidi == NULL) { 445 dev_err(card->dev, "can't setup ICS2115 internal MIDI device\n"); 446 return -ENOMEM; 447 } 448 midi_dev++; 449 } 450 451 /* ------ ICS2115 external MIDI ------------ */ 452 453 if (ics2115_port[dev] > 0 && ics2115_port[dev] != SNDRV_AUTO_PORT) { 454 ics2115_external_rmidi = 455 snd_wavefront_new_midi (card, 456 midi_dev, 457 acard, 458 ics2115_port[dev], 459 external_mpu); 460 if (ics2115_external_rmidi == NULL) { 461 dev_err(card->dev, "can't setup ICS2115 external MIDI device\n"); 462 return -ENOMEM; 463 } 464 midi_dev++; 465 } 466 467 /* FX processor for Tropez+ */ 468 469 if (acard->wavefront.has_fx) { 470 fx_processor = snd_wavefront_new_fx (card, 471 hw_dev, 472 acard, 473 ics2115_port[dev]); 474 if (fx_processor == NULL) { 475 dev_err(card->dev, "can't setup FX device\n"); 476 return -ENOMEM; 477 } 478 479 hw_dev++; 480 481 strcpy(card->driver, "Tropez+"); 482 strcpy(card->shortname, "Turtle Beach Tropez+"); 483 } else { 484 /* Need a way to distinguish between Maui and Tropez */ 485 strcpy(card->driver, "WaveFront"); 486 strcpy(card->shortname, "Turtle Beach WaveFront"); 487 } 488 489 /* ----- Register the card --------- */ 490 491 /* Not safe to include "Turtle Beach" in longname, due to 492 length restrictions 493 */ 494 495 sprintf(card->longname, "%s PCM 0x%lx irq %d dma %d", 496 card->driver, 497 chip->port, 498 cs4232_pcm_irq[dev], 499 dma1[dev]); 500 501 if (dma2[dev] >= 0 && dma2[dev] < 8) 502 sprintf(card->longname + strlen(card->longname), "&%d", dma2[dev]); 503 504 if (cs4232_mpu_port[dev] > 0 && cs4232_mpu_port[dev] != SNDRV_AUTO_PORT) { 505 sprintf (card->longname + strlen (card->longname), 506 " MPU-401 0x%lx irq %d", 507 cs4232_mpu_port[dev], 508 cs4232_mpu_irq[dev]); 509 } 510 511 sprintf (card->longname + strlen (card->longname), 512 " SYNTH 0x%lx irq %d", 513 ics2115_port[dev], 514 ics2115_irq[dev]); 515 516 return snd_card_register(card); 517 } 518 519 static int snd_wavefront_isa_match(struct device *pdev, 520 unsigned int dev) 521 { 522 if (!enable[dev]) 523 return 0; 524 #ifdef CONFIG_PNP 525 if (isapnp[dev]) 526 return 0; 527 #endif 528 if (cs4232_pcm_port[dev] == SNDRV_AUTO_PORT) { 529 dev_err(pdev, "specify CS4232 port\n"); 530 return 0; 531 } 532 if (ics2115_port[dev] == SNDRV_AUTO_PORT) { 533 dev_err(pdev, "specify ICS2115 port\n"); 534 return 0; 535 } 536 return 1; 537 } 538 539 static int snd_wavefront_isa_probe(struct device *pdev, 540 unsigned int dev) 541 { 542 struct snd_card *card; 543 int err; 544 545 err = snd_wavefront_card_new(pdev, dev, &card); 546 if (err < 0) 547 return err; 548 err = snd_wavefront_probe(card, dev); 549 if (err < 0) 550 return err; 551 552 dev_set_drvdata(pdev, card); 553 return 0; 554 } 555 556 #define DEV_NAME "wavefront" 557 558 static struct isa_driver snd_wavefront_driver = { 559 .match = snd_wavefront_isa_match, 560 .probe = snd_wavefront_isa_probe, 561 /* FIXME: suspend, resume */ 562 .driver = { 563 .name = DEV_NAME 564 }, 565 }; 566 567 568 #ifdef CONFIG_PNP 569 static int snd_wavefront_pnp_detect(struct pnp_card_link *pcard, 570 const struct pnp_card_device_id *pid) 571 { 572 static int dev; 573 struct snd_card *card; 574 int res; 575 576 for ( ; dev < SNDRV_CARDS; dev++) { 577 if (enable[dev] && isapnp[dev]) 578 break; 579 } 580 if (dev >= SNDRV_CARDS) 581 return -ENODEV; 582 583 res = snd_wavefront_card_new(&pcard->card->dev, dev, &card); 584 if (res < 0) 585 return res; 586 587 if (snd_wavefront_pnp (dev, card->private_data, pcard, pid) < 0) { 588 if (cs4232_pcm_port[dev] == SNDRV_AUTO_PORT) { 589 dev_err(card->dev, "isapnp detection failed\n"); 590 return -ENODEV; 591 } 592 } 593 594 res = snd_wavefront_probe(card, dev); 595 if (res < 0) 596 return res; 597 598 pnp_set_card_drvdata(pcard, card); 599 dev++; 600 return 0; 601 } 602 603 static struct pnp_card_driver wavefront_pnpc_driver = { 604 .flags = PNP_DRIVER_RES_DISABLE, 605 .name = "wavefront", 606 .id_table = snd_wavefront_pnpids, 607 .probe = snd_wavefront_pnp_detect, 608 /* FIXME: suspend,resume */ 609 }; 610 611 #endif /* CONFIG_PNP */ 612 613 static int __init alsa_card_wavefront_init(void) 614 { 615 int err; 616 617 err = isa_register_driver(&snd_wavefront_driver, SNDRV_CARDS); 618 #ifdef CONFIG_PNP 619 if (!err) 620 isa_registered = 1; 621 622 err = pnp_register_card_driver(&wavefront_pnpc_driver); 623 if (!err) 624 pnp_registered = 1; 625 626 if (isa_registered) 627 err = 0; 628 #endif 629 return err; 630 } 631 632 static void __exit alsa_card_wavefront_exit(void) 633 { 634 #ifdef CONFIG_PNP 635 if (pnp_registered) 636 pnp_unregister_card_driver(&wavefront_pnpc_driver); 637 if (isa_registered) 638 #endif 639 isa_unregister_driver(&snd_wavefront_driver); 640 } 641 642 module_init(alsa_card_wavefront_init) 643 module_exit(alsa_card_wavefront_exit) 644