1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * als300.c - driver for Avance Logic ALS300/ALS300+ soundcards. 4 * Copyright (C) 2005 by Ash Willis <ashwillis@programmer.net> 5 * 6 * TODO 7 * 4 channel playback for ALS300+ 8 * gameport 9 * mpu401 10 * opl3 11 * 12 * NOTES 13 * The BLOCK_COUNTER registers for the ALS300(+) return a figure related to 14 * the position in the current period, NOT the whole buffer. It is important 15 * to know which period we are in so we can calculate the correct pointer. 16 * This is why we always use 2 periods. We can then use a flip-flop variable 17 * to keep track of what period we are in. 18 */ 19 20 #include <linux/delay.h> 21 #include <linux/init.h> 22 #include <linux/module.h> 23 #include <linux/pci.h> 24 #include <linux/dma-mapping.h> 25 #include <linux/interrupt.h> 26 #include <linux/slab.h> 27 #include <linux/io.h> 28 29 #include <sound/core.h> 30 #include <sound/control.h> 31 #include <sound/initval.h> 32 #include <sound/pcm.h> 33 #include <sound/pcm_params.h> 34 #include <sound/ac97_codec.h> 35 #include <sound/opl3.h> 36 37 /* snd_als300_set_irq_flag */ 38 #define IRQ_DISABLE 0 39 #define IRQ_ENABLE 1 40 41 /* I/O port layout */ 42 #define AC97_ACCESS 0x00 43 #define AC97_READ 0x04 44 #define AC97_STATUS 0x06 45 #define AC97_DATA_AVAIL (1<<6) 46 #define AC97_BUSY (1<<7) 47 #define ALS300_IRQ_STATUS 0x07 /* ALS300 Only */ 48 #define IRQ_PLAYBACK (1<<3) 49 #define IRQ_CAPTURE (1<<2) 50 #define GCR_DATA 0x08 51 #define GCR_INDEX 0x0C 52 #define ALS300P_DRAM_IRQ_STATUS 0x0D /* ALS300+ Only */ 53 #define MPU_IRQ_STATUS 0x0E /* ALS300 Rev. E+, ALS300+ */ 54 #define ALS300P_IRQ_STATUS 0x0F /* ALS300+ Only */ 55 56 /* General Control Registers */ 57 #define PLAYBACK_START 0x80 58 #define PLAYBACK_END 0x81 59 #define PLAYBACK_CONTROL 0x82 60 #define TRANSFER_START (1<<16) 61 #define FIFO_PAUSE (1<<17) 62 #define RECORD_START 0x83 63 #define RECORD_END 0x84 64 #define RECORD_CONTROL 0x85 65 #define DRAM_WRITE_CONTROL 0x8B 66 #define WRITE_TRANS_START (1<<16) 67 #define DRAM_MODE_2 (1<<17) 68 #define MISC_CONTROL 0x8C 69 #define IRQ_SET_BIT (1<<15) 70 #define VMUTE_NORMAL (1<<20) 71 #define MMUTE_NORMAL (1<<21) 72 #define MUS_VOC_VOL 0x8E 73 #define PLAYBACK_BLOCK_COUNTER 0x9A 74 #define RECORD_BLOCK_COUNTER 0x9B 75 76 #define DEBUG_PLAY_REC 0 77 78 #if DEBUG_PLAY_REC 79 #define snd_als300_dbgplay(format, args...) printk(KERN_ERR format, ##args) 80 #else 81 #define snd_als300_dbgplay(format, args...) 82 #endif 83 84 enum {DEVICE_ALS300, DEVICE_ALS300_PLUS}; 85 86 MODULE_AUTHOR("Ash Willis <ashwillis@programmer.net>"); 87 MODULE_DESCRIPTION("Avance Logic ALS300"); 88 MODULE_LICENSE("GPL"); 89 90 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 91 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 92 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 93 94 module_param_array(index, int, NULL, 0444); 95 MODULE_PARM_DESC(index, "Index value for ALS300 sound card."); 96 module_param_array(id, charp, NULL, 0444); 97 MODULE_PARM_DESC(id, "ID string for ALS300 sound card."); 98 module_param_array(enable, bool, NULL, 0444); 99 MODULE_PARM_DESC(enable, "Enable ALS300 sound card."); 100 101 struct snd_als300 { 102 unsigned long port; 103 spinlock_t reg_lock; 104 struct snd_card *card; 105 struct pci_dev *pci; 106 107 struct snd_pcm *pcm; 108 struct snd_pcm_substream *playback_substream; 109 struct snd_pcm_substream *capture_substream; 110 111 struct snd_ac97 *ac97; 112 struct snd_opl3 *opl3; 113 114 struct resource *res_port; 115 116 int irq; 117 118 int chip_type; /* ALS300 or ALS300+ */ 119 120 char revision; 121 }; 122 123 struct snd_als300_substream_data { 124 int period_flipflop; 125 int control_register; 126 int block_counter_register; 127 }; 128 129 static const struct pci_device_id snd_als300_ids[] = { 130 { PCI_DEVICE(0x4005, 0x0300), .driver_data = DEVICE_ALS300 }, 131 { PCI_DEVICE(0x4005, 0x0308), .driver_data = DEVICE_ALS300_PLUS }, 132 { } 133 }; 134 135 MODULE_DEVICE_TABLE(pci, snd_als300_ids); 136 137 static inline u32 snd_als300_gcr_read(unsigned long port, unsigned short reg) 138 { 139 outb(reg, port+GCR_INDEX); 140 return inl(port+GCR_DATA); 141 } 142 143 static inline void snd_als300_gcr_write(unsigned long port, 144 unsigned short reg, u32 val) 145 { 146 outb(reg, port+GCR_INDEX); 147 outl(val, port+GCR_DATA); 148 } 149 150 /* Enable/Disable Interrupts */ 151 static void snd_als300_set_irq_flag(struct snd_als300 *chip, int cmd) 152 { 153 u32 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); 154 155 /* boolean XOR check, since old vs. new hardware have 156 directly reversed bit setting for ENABLE and DISABLE. 157 ALS300+ acts like newer versions of ALS300 */ 158 if (((chip->revision > 5 || chip->chip_type == DEVICE_ALS300_PLUS) ^ 159 (cmd == IRQ_ENABLE)) == 0) 160 tmp |= IRQ_SET_BIT; 161 else 162 tmp &= ~IRQ_SET_BIT; 163 snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp); 164 } 165 166 static void snd_als300_free(struct snd_card *card) 167 { 168 struct snd_als300 *chip = card->private_data; 169 170 snd_als300_set_irq_flag(chip, IRQ_DISABLE); 171 } 172 173 static irqreturn_t snd_als300_interrupt(int irq, void *dev_id) 174 { 175 u8 status; 176 struct snd_als300 *chip = dev_id; 177 struct snd_als300_substream_data *data; 178 179 status = inb(chip->port+ALS300_IRQ_STATUS); 180 if (!status) /* shared IRQ, for different device?? Exit ASAP! */ 181 return IRQ_NONE; 182 183 /* ACK everything ASAP */ 184 outb(status, chip->port+ALS300_IRQ_STATUS); 185 if (status & IRQ_PLAYBACK) { 186 if (chip->pcm && chip->playback_substream) { 187 data = chip->playback_substream->runtime->private_data; 188 data->period_flipflop ^= 1; 189 snd_pcm_period_elapsed(chip->playback_substream); 190 snd_als300_dbgplay("IRQ_PLAYBACK\n"); 191 } 192 } 193 if (status & IRQ_CAPTURE) { 194 if (chip->pcm && chip->capture_substream) { 195 data = chip->capture_substream->runtime->private_data; 196 data->period_flipflop ^= 1; 197 snd_pcm_period_elapsed(chip->capture_substream); 198 snd_als300_dbgplay("IRQ_CAPTURE\n"); 199 } 200 } 201 return IRQ_HANDLED; 202 } 203 204 static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id) 205 { 206 u8 general, mpu, dram; 207 struct snd_als300 *chip = dev_id; 208 struct snd_als300_substream_data *data; 209 210 general = inb(chip->port+ALS300P_IRQ_STATUS); 211 mpu = inb(chip->port+MPU_IRQ_STATUS); 212 dram = inb(chip->port+ALS300P_DRAM_IRQ_STATUS); 213 214 /* shared IRQ, for different device?? Exit ASAP! */ 215 if ((general == 0) && ((mpu & 0x80) == 0) && ((dram & 0x01) == 0)) 216 return IRQ_NONE; 217 218 if (general & IRQ_PLAYBACK) { 219 if (chip->pcm && chip->playback_substream) { 220 outb(IRQ_PLAYBACK, chip->port+ALS300P_IRQ_STATUS); 221 data = chip->playback_substream->runtime->private_data; 222 data->period_flipflop ^= 1; 223 snd_pcm_period_elapsed(chip->playback_substream); 224 snd_als300_dbgplay("IRQ_PLAYBACK\n"); 225 } 226 } 227 if (general & IRQ_CAPTURE) { 228 if (chip->pcm && chip->capture_substream) { 229 outb(IRQ_CAPTURE, chip->port+ALS300P_IRQ_STATUS); 230 data = chip->capture_substream->runtime->private_data; 231 data->period_flipflop ^= 1; 232 snd_pcm_period_elapsed(chip->capture_substream); 233 snd_als300_dbgplay("IRQ_CAPTURE\n"); 234 } 235 } 236 /* FIXME: Ack other interrupt types. Not important right now as 237 * those other devices aren't enabled. */ 238 return IRQ_HANDLED; 239 } 240 241 static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97, 242 unsigned short reg) 243 { 244 int i; 245 struct snd_als300 *chip = ac97->private_data; 246 247 for (i = 0; i < 1000; i++) { 248 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) 249 break; 250 udelay(10); 251 } 252 outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS); 253 254 for (i = 0; i < 1000; i++) { 255 if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0) 256 break; 257 udelay(10); 258 } 259 return inw(chip->port+AC97_READ); 260 } 261 262 static void snd_als300_ac97_write(struct snd_ac97 *ac97, 263 unsigned short reg, unsigned short val) 264 { 265 int i; 266 struct snd_als300 *chip = ac97->private_data; 267 268 for (i = 0; i < 1000; i++) { 269 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) 270 break; 271 udelay(10); 272 } 273 outl((reg << 24) | val, chip->port+AC97_ACCESS); 274 } 275 276 static int snd_als300_ac97(struct snd_als300 *chip) 277 { 278 struct snd_ac97_bus *bus; 279 struct snd_ac97_template ac97; 280 int err; 281 static const struct snd_ac97_bus_ops ops = { 282 .write = snd_als300_ac97_write, 283 .read = snd_als300_ac97_read, 284 }; 285 286 err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus); 287 if (err < 0) 288 return err; 289 290 memset(&ac97, 0, sizeof(ac97)); 291 ac97.private_data = chip; 292 293 return snd_ac97_mixer(bus, &ac97, &chip->ac97); 294 } 295 296 /* hardware definition 297 * 298 * In AC97 mode, we always use 48k/16bit/stereo. 299 * Any request to change data type is ignored by 300 * the card when it is running outside of legacy 301 * mode. 302 */ 303 static const struct snd_pcm_hardware snd_als300_playback_hw = 304 { 305 .info = (SNDRV_PCM_INFO_MMAP | 306 SNDRV_PCM_INFO_INTERLEAVED | 307 SNDRV_PCM_INFO_PAUSE | 308 SNDRV_PCM_INFO_MMAP_VALID), 309 .formats = SNDRV_PCM_FMTBIT_S16, 310 .rates = SNDRV_PCM_RATE_48000, 311 .rate_min = 48000, 312 .rate_max = 48000, 313 .channels_min = 2, 314 .channels_max = 2, 315 .buffer_bytes_max = 64 * 1024, 316 .period_bytes_min = 64, 317 .period_bytes_max = 32 * 1024, 318 .periods_min = 2, 319 .periods_max = 2, 320 }; 321 322 static const struct snd_pcm_hardware snd_als300_capture_hw = 323 { 324 .info = (SNDRV_PCM_INFO_MMAP | 325 SNDRV_PCM_INFO_INTERLEAVED | 326 SNDRV_PCM_INFO_PAUSE | 327 SNDRV_PCM_INFO_MMAP_VALID), 328 .formats = SNDRV_PCM_FMTBIT_S16, 329 .rates = SNDRV_PCM_RATE_48000, 330 .rate_min = 48000, 331 .rate_max = 48000, 332 .channels_min = 2, 333 .channels_max = 2, 334 .buffer_bytes_max = 64 * 1024, 335 .period_bytes_min = 64, 336 .period_bytes_max = 32 * 1024, 337 .periods_min = 2, 338 .periods_max = 2, 339 }; 340 341 static int snd_als300_playback_open(struct snd_pcm_substream *substream) 342 { 343 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 344 struct snd_pcm_runtime *runtime = substream->runtime; 345 struct snd_als300_substream_data *data = kzalloc_obj(*data); 346 347 if (!data) 348 return -ENOMEM; 349 chip->playback_substream = substream; 350 runtime->hw = snd_als300_playback_hw; 351 runtime->private_data = data; 352 data->control_register = PLAYBACK_CONTROL; 353 data->block_counter_register = PLAYBACK_BLOCK_COUNTER; 354 return 0; 355 } 356 357 static int snd_als300_playback_close(struct snd_pcm_substream *substream) 358 { 359 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 360 struct snd_als300_substream_data *data; 361 362 data = substream->runtime->private_data; 363 kfree(data); 364 chip->playback_substream = NULL; 365 return 0; 366 } 367 368 static int snd_als300_capture_open(struct snd_pcm_substream *substream) 369 { 370 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 371 struct snd_pcm_runtime *runtime = substream->runtime; 372 struct snd_als300_substream_data *data = kzalloc_obj(*data); 373 374 if (!data) 375 return -ENOMEM; 376 chip->capture_substream = substream; 377 runtime->hw = snd_als300_capture_hw; 378 runtime->private_data = data; 379 data->control_register = RECORD_CONTROL; 380 data->block_counter_register = RECORD_BLOCK_COUNTER; 381 return 0; 382 } 383 384 static int snd_als300_capture_close(struct snd_pcm_substream *substream) 385 { 386 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 387 struct snd_als300_substream_data *data; 388 389 data = substream->runtime->private_data; 390 kfree(data); 391 chip->capture_substream = NULL; 392 return 0; 393 } 394 395 static int snd_als300_playback_prepare(struct snd_pcm_substream *substream) 396 { 397 u32 tmp; 398 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 399 struct snd_pcm_runtime *runtime = substream->runtime; 400 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 401 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 402 403 guard(spinlock_irq)(&chip->reg_lock); 404 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 405 tmp &= ~TRANSFER_START; 406 407 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", 408 period_bytes, buffer_bytes); 409 410 /* set block size */ 411 tmp &= 0xffff0000; 412 tmp |= period_bytes - 1; 413 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp); 414 415 /* set dma area */ 416 snd_als300_gcr_write(chip->port, PLAYBACK_START, 417 runtime->dma_addr); 418 snd_als300_gcr_write(chip->port, PLAYBACK_END, 419 runtime->dma_addr + buffer_bytes - 1); 420 return 0; 421 } 422 423 static int snd_als300_capture_prepare(struct snd_pcm_substream *substream) 424 { 425 u32 tmp; 426 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 427 struct snd_pcm_runtime *runtime = substream->runtime; 428 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 429 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 430 431 guard(spinlock_irq)(&chip->reg_lock); 432 tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL); 433 tmp &= ~TRANSFER_START; 434 435 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes, 436 buffer_bytes); 437 438 /* set block size */ 439 tmp &= 0xffff0000; 440 tmp |= period_bytes - 1; 441 442 /* set dma area */ 443 snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp); 444 snd_als300_gcr_write(chip->port, RECORD_START, 445 runtime->dma_addr); 446 snd_als300_gcr_write(chip->port, RECORD_END, 447 runtime->dma_addr + buffer_bytes - 1); 448 return 0; 449 } 450 451 static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd) 452 { 453 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 454 u32 tmp; 455 struct snd_als300_substream_data *data; 456 unsigned short reg; 457 int ret = 0; 458 459 data = substream->runtime->private_data; 460 reg = data->control_register; 461 462 guard(spinlock)(&chip->reg_lock); 463 switch (cmd) { 464 case SNDRV_PCM_TRIGGER_START: 465 case SNDRV_PCM_TRIGGER_RESUME: 466 tmp = snd_als300_gcr_read(chip->port, reg); 467 data->period_flipflop = 1; 468 snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START); 469 snd_als300_dbgplay("TRIGGER START\n"); 470 break; 471 case SNDRV_PCM_TRIGGER_STOP: 472 case SNDRV_PCM_TRIGGER_SUSPEND: 473 tmp = snd_als300_gcr_read(chip->port, reg); 474 snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START); 475 snd_als300_dbgplay("TRIGGER STOP\n"); 476 break; 477 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 478 tmp = snd_als300_gcr_read(chip->port, reg); 479 snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE); 480 snd_als300_dbgplay("TRIGGER PAUSE\n"); 481 break; 482 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 483 tmp = snd_als300_gcr_read(chip->port, reg); 484 snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE); 485 snd_als300_dbgplay("TRIGGER RELEASE\n"); 486 break; 487 default: 488 snd_als300_dbgplay("TRIGGER INVALID\n"); 489 ret = -EINVAL; 490 } 491 return ret; 492 } 493 494 static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream) 495 { 496 u16 current_ptr; 497 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 498 struct snd_als300_substream_data *data; 499 unsigned short period_bytes; 500 501 data = substream->runtime->private_data; 502 period_bytes = snd_pcm_lib_period_bytes(substream); 503 504 scoped_guard(spinlock, &chip->reg_lock) { 505 current_ptr = (u16) snd_als300_gcr_read(chip->port, 506 data->block_counter_register) + 4; 507 } 508 if (current_ptr > period_bytes) 509 current_ptr = 0; 510 else 511 current_ptr = period_bytes - current_ptr; 512 513 if (data->period_flipflop == 0) 514 current_ptr += period_bytes; 515 snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr); 516 return bytes_to_frames(substream->runtime, current_ptr); 517 } 518 519 static const struct snd_pcm_ops snd_als300_playback_ops = { 520 .open = snd_als300_playback_open, 521 .close = snd_als300_playback_close, 522 .prepare = snd_als300_playback_prepare, 523 .trigger = snd_als300_trigger, 524 .pointer = snd_als300_pointer, 525 }; 526 527 static const struct snd_pcm_ops snd_als300_capture_ops = { 528 .open = snd_als300_capture_open, 529 .close = snd_als300_capture_close, 530 .prepare = snd_als300_capture_prepare, 531 .trigger = snd_als300_trigger, 532 .pointer = snd_als300_pointer, 533 }; 534 535 static int snd_als300_new_pcm(struct snd_als300 *chip) 536 { 537 struct snd_pcm *pcm; 538 int err; 539 540 err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm); 541 if (err < 0) 542 return err; 543 pcm->private_data = chip; 544 strscpy(pcm->name, "ALS300"); 545 chip->pcm = pcm; 546 547 /* set operators */ 548 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 549 &snd_als300_playback_ops); 550 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 551 &snd_als300_capture_ops); 552 553 /* pre-allocation of buffers */ 554 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev, 555 64*1024, 64*1024); 556 return 0; 557 } 558 559 static void snd_als300_init(struct snd_als300 *chip) 560 { 561 u32 tmp; 562 563 guard(spinlock_irqsave)(&chip->reg_lock); 564 chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16) 565 & 0x0000000F; 566 /* Setup DRAM */ 567 tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL); 568 snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL, 569 (tmp | DRAM_MODE_2) 570 & ~WRITE_TRANS_START); 571 572 /* Enable IRQ output */ 573 snd_als300_set_irq_flag(chip, IRQ_ENABLE); 574 575 /* Unmute hardware devices so their outputs get routed to 576 * the onboard mixer */ 577 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); 578 snd_als300_gcr_write(chip->port, MISC_CONTROL, 579 tmp | VMUTE_NORMAL | MMUTE_NORMAL); 580 581 /* Reset volumes */ 582 snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0); 583 584 /* Make sure playback transfer is stopped */ 585 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 586 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, 587 tmp & ~TRANSFER_START); 588 } 589 590 static int snd_als300_create(struct snd_card *card, 591 struct pci_dev *pci, int chip_type) 592 { 593 struct snd_als300 *chip = card->private_data; 594 void *irq_handler; 595 int err; 596 597 err = pcim_enable_device(pci); 598 if (err < 0) 599 return err; 600 601 if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(28))) { 602 dev_err(card->dev, "error setting 28bit DMA mask\n"); 603 return -ENXIO; 604 } 605 pci_set_master(pci); 606 607 chip->card = card; 608 chip->pci = pci; 609 chip->irq = -1; 610 chip->chip_type = chip_type; 611 spin_lock_init(&chip->reg_lock); 612 613 err = pcim_request_all_regions(pci, "ALS300"); 614 if (err < 0) 615 return err; 616 617 chip->port = pci_resource_start(pci, 0); 618 619 if (chip->chip_type == DEVICE_ALS300_PLUS) 620 irq_handler = snd_als300plus_interrupt; 621 else 622 irq_handler = snd_als300_interrupt; 623 624 if (devm_request_irq(&pci->dev, pci->irq, irq_handler, IRQF_SHARED, 625 KBUILD_MODNAME, chip)) { 626 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); 627 return -EBUSY; 628 } 629 chip->irq = pci->irq; 630 card->sync_irq = chip->irq; 631 card->private_free = snd_als300_free; 632 633 snd_als300_init(chip); 634 635 err = snd_als300_ac97(chip); 636 if (err < 0) { 637 dev_err(card->dev, "Could not create ac97\n"); 638 return err; 639 } 640 641 err = snd_als300_new_pcm(chip); 642 if (err < 0) { 643 dev_err(card->dev, "Could not create PCM\n"); 644 return err; 645 } 646 647 return 0; 648 } 649 650 static int snd_als300_suspend(struct device *dev) 651 { 652 struct snd_card *card = dev_get_drvdata(dev); 653 struct snd_als300 *chip = card->private_data; 654 655 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 656 snd_ac97_suspend(chip->ac97); 657 return 0; 658 } 659 660 static int snd_als300_resume(struct device *dev) 661 { 662 struct snd_card *card = dev_get_drvdata(dev); 663 struct snd_als300 *chip = card->private_data; 664 665 snd_als300_init(chip); 666 snd_ac97_resume(chip->ac97); 667 668 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 669 return 0; 670 } 671 672 static DEFINE_SIMPLE_DEV_PM_OPS(snd_als300_pm, snd_als300_suspend, snd_als300_resume); 673 674 static int snd_als300_probe(struct pci_dev *pci, 675 const struct pci_device_id *pci_id) 676 { 677 static int dev; 678 struct snd_card *card; 679 struct snd_als300 *chip; 680 int err, chip_type; 681 682 if (dev >= SNDRV_CARDS) 683 return -ENODEV; 684 if (!enable[dev]) { 685 dev++; 686 return -ENOENT; 687 } 688 689 err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 690 sizeof(*chip), &card); 691 if (err < 0) 692 return err; 693 chip = card->private_data; 694 695 chip_type = pci_id->driver_data; 696 697 err = snd_als300_create(card, pci, chip_type); 698 if (err < 0) 699 goto error; 700 701 strscpy(card->driver, "ALS300"); 702 if (chip->chip_type == DEVICE_ALS300_PLUS) 703 /* don't know much about ALS300+ yet 704 * print revision number for now */ 705 sprintf(card->shortname, "ALS300+ (Rev. %d)", chip->revision); 706 else 707 sprintf(card->shortname, "ALS300 (Rev. %c)", 'A' + 708 chip->revision - 1); 709 sprintf(card->longname, "%s at 0x%lx irq %i", 710 card->shortname, chip->port, chip->irq); 711 712 err = snd_card_register(card); 713 if (err < 0) 714 goto error; 715 716 pci_set_drvdata(pci, card); 717 dev++; 718 return 0; 719 720 error: 721 snd_card_free(card); 722 return err; 723 } 724 725 static struct pci_driver als300_driver = { 726 .name = KBUILD_MODNAME, 727 .id_table = snd_als300_ids, 728 .probe = snd_als300_probe, 729 .driver = { 730 .pm = &snd_als300_pm, 731 }, 732 }; 733 734 module_pci_driver(als300_driver); 735