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 { 0x4005, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300 }, 131 { 0x4005, 0x0308, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300_PLUS }, 132 { 0, } 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(sizeof(*data), 346 GFP_KERNEL); 347 348 if (!data) 349 return -ENOMEM; 350 chip->playback_substream = substream; 351 runtime->hw = snd_als300_playback_hw; 352 runtime->private_data = data; 353 data->control_register = PLAYBACK_CONTROL; 354 data->block_counter_register = PLAYBACK_BLOCK_COUNTER; 355 return 0; 356 } 357 358 static int snd_als300_playback_close(struct snd_pcm_substream *substream) 359 { 360 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 361 struct snd_als300_substream_data *data; 362 363 data = substream->runtime->private_data; 364 kfree(data); 365 chip->playback_substream = NULL; 366 return 0; 367 } 368 369 static int snd_als300_capture_open(struct snd_pcm_substream *substream) 370 { 371 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 372 struct snd_pcm_runtime *runtime = substream->runtime; 373 struct snd_als300_substream_data *data = kzalloc(sizeof(*data), 374 GFP_KERNEL); 375 376 if (!data) 377 return -ENOMEM; 378 chip->capture_substream = substream; 379 runtime->hw = snd_als300_capture_hw; 380 runtime->private_data = data; 381 data->control_register = RECORD_CONTROL; 382 data->block_counter_register = RECORD_BLOCK_COUNTER; 383 return 0; 384 } 385 386 static int snd_als300_capture_close(struct snd_pcm_substream *substream) 387 { 388 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 389 struct snd_als300_substream_data *data; 390 391 data = substream->runtime->private_data; 392 kfree(data); 393 chip->capture_substream = NULL; 394 return 0; 395 } 396 397 static int snd_als300_playback_prepare(struct snd_pcm_substream *substream) 398 { 399 u32 tmp; 400 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 401 struct snd_pcm_runtime *runtime = substream->runtime; 402 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 403 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 404 405 spin_lock_irq(&chip->reg_lock); 406 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 407 tmp &= ~TRANSFER_START; 408 409 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", 410 period_bytes, buffer_bytes); 411 412 /* set block size */ 413 tmp &= 0xffff0000; 414 tmp |= period_bytes - 1; 415 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp); 416 417 /* set dma area */ 418 snd_als300_gcr_write(chip->port, PLAYBACK_START, 419 runtime->dma_addr); 420 snd_als300_gcr_write(chip->port, PLAYBACK_END, 421 runtime->dma_addr + buffer_bytes - 1); 422 spin_unlock_irq(&chip->reg_lock); 423 return 0; 424 } 425 426 static int snd_als300_capture_prepare(struct snd_pcm_substream *substream) 427 { 428 u32 tmp; 429 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 430 struct snd_pcm_runtime *runtime = substream->runtime; 431 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 432 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 433 434 spin_lock_irq(&chip->reg_lock); 435 tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL); 436 tmp &= ~TRANSFER_START; 437 438 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes, 439 buffer_bytes); 440 441 /* set block size */ 442 tmp &= 0xffff0000; 443 tmp |= period_bytes - 1; 444 445 /* set dma area */ 446 snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp); 447 snd_als300_gcr_write(chip->port, RECORD_START, 448 runtime->dma_addr); 449 snd_als300_gcr_write(chip->port, RECORD_END, 450 runtime->dma_addr + buffer_bytes - 1); 451 spin_unlock_irq(&chip->reg_lock); 452 return 0; 453 } 454 455 static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd) 456 { 457 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 458 u32 tmp; 459 struct snd_als300_substream_data *data; 460 unsigned short reg; 461 int ret = 0; 462 463 data = substream->runtime->private_data; 464 reg = data->control_register; 465 466 spin_lock(&chip->reg_lock); 467 switch (cmd) { 468 case SNDRV_PCM_TRIGGER_START: 469 case SNDRV_PCM_TRIGGER_RESUME: 470 tmp = snd_als300_gcr_read(chip->port, reg); 471 data->period_flipflop = 1; 472 snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START); 473 snd_als300_dbgplay("TRIGGER START\n"); 474 break; 475 case SNDRV_PCM_TRIGGER_STOP: 476 case SNDRV_PCM_TRIGGER_SUSPEND: 477 tmp = snd_als300_gcr_read(chip->port, reg); 478 snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START); 479 snd_als300_dbgplay("TRIGGER STOP\n"); 480 break; 481 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 482 tmp = snd_als300_gcr_read(chip->port, reg); 483 snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE); 484 snd_als300_dbgplay("TRIGGER PAUSE\n"); 485 break; 486 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 487 tmp = snd_als300_gcr_read(chip->port, reg); 488 snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE); 489 snd_als300_dbgplay("TRIGGER RELEASE\n"); 490 break; 491 default: 492 snd_als300_dbgplay("TRIGGER INVALID\n"); 493 ret = -EINVAL; 494 } 495 spin_unlock(&chip->reg_lock); 496 return ret; 497 } 498 499 static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream) 500 { 501 u16 current_ptr; 502 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 503 struct snd_als300_substream_data *data; 504 unsigned short period_bytes; 505 506 data = substream->runtime->private_data; 507 period_bytes = snd_pcm_lib_period_bytes(substream); 508 509 spin_lock(&chip->reg_lock); 510 current_ptr = (u16) snd_als300_gcr_read(chip->port, 511 data->block_counter_register) + 4; 512 spin_unlock(&chip->reg_lock); 513 if (current_ptr > period_bytes) 514 current_ptr = 0; 515 else 516 current_ptr = period_bytes - current_ptr; 517 518 if (data->period_flipflop == 0) 519 current_ptr += period_bytes; 520 snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr); 521 return bytes_to_frames(substream->runtime, current_ptr); 522 } 523 524 static const struct snd_pcm_ops snd_als300_playback_ops = { 525 .open = snd_als300_playback_open, 526 .close = snd_als300_playback_close, 527 .prepare = snd_als300_playback_prepare, 528 .trigger = snd_als300_trigger, 529 .pointer = snd_als300_pointer, 530 }; 531 532 static const struct snd_pcm_ops snd_als300_capture_ops = { 533 .open = snd_als300_capture_open, 534 .close = snd_als300_capture_close, 535 .prepare = snd_als300_capture_prepare, 536 .trigger = snd_als300_trigger, 537 .pointer = snd_als300_pointer, 538 }; 539 540 static int snd_als300_new_pcm(struct snd_als300 *chip) 541 { 542 struct snd_pcm *pcm; 543 int err; 544 545 err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm); 546 if (err < 0) 547 return err; 548 pcm->private_data = chip; 549 strcpy(pcm->name, "ALS300"); 550 chip->pcm = pcm; 551 552 /* set operators */ 553 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 554 &snd_als300_playback_ops); 555 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 556 &snd_als300_capture_ops); 557 558 /* pre-allocation of buffers */ 559 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev, 560 64*1024, 64*1024); 561 return 0; 562 } 563 564 static void snd_als300_init(struct snd_als300 *chip) 565 { 566 unsigned long flags; 567 u32 tmp; 568 569 spin_lock_irqsave(&chip->reg_lock, flags); 570 chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16) 571 & 0x0000000F; 572 /* Setup DRAM */ 573 tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL); 574 snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL, 575 (tmp | DRAM_MODE_2) 576 & ~WRITE_TRANS_START); 577 578 /* Enable IRQ output */ 579 snd_als300_set_irq_flag(chip, IRQ_ENABLE); 580 581 /* Unmute hardware devices so their outputs get routed to 582 * the onboard mixer */ 583 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); 584 snd_als300_gcr_write(chip->port, MISC_CONTROL, 585 tmp | VMUTE_NORMAL | MMUTE_NORMAL); 586 587 /* Reset volumes */ 588 snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0); 589 590 /* Make sure playback transfer is stopped */ 591 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 592 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, 593 tmp & ~TRANSFER_START); 594 spin_unlock_irqrestore(&chip->reg_lock, flags); 595 } 596 597 static int snd_als300_create(struct snd_card *card, 598 struct pci_dev *pci, int chip_type) 599 { 600 struct snd_als300 *chip = card->private_data; 601 void *irq_handler; 602 int err; 603 604 err = pcim_enable_device(pci); 605 if (err < 0) 606 return err; 607 608 if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(28))) { 609 dev_err(card->dev, "error setting 28bit DMA mask\n"); 610 return -ENXIO; 611 } 612 pci_set_master(pci); 613 614 chip->card = card; 615 chip->pci = pci; 616 chip->irq = -1; 617 chip->chip_type = chip_type; 618 spin_lock_init(&chip->reg_lock); 619 620 err = pci_request_regions(pci, "ALS300"); 621 if (err < 0) 622 return err; 623 624 chip->port = pci_resource_start(pci, 0); 625 626 if (chip->chip_type == DEVICE_ALS300_PLUS) 627 irq_handler = snd_als300plus_interrupt; 628 else 629 irq_handler = snd_als300_interrupt; 630 631 if (devm_request_irq(&pci->dev, pci->irq, irq_handler, IRQF_SHARED, 632 KBUILD_MODNAME, chip)) { 633 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); 634 return -EBUSY; 635 } 636 chip->irq = pci->irq; 637 card->sync_irq = chip->irq; 638 card->private_free = snd_als300_free; 639 640 snd_als300_init(chip); 641 642 err = snd_als300_ac97(chip); 643 if (err < 0) { 644 dev_err(card->dev, "Could not create ac97\n"); 645 return err; 646 } 647 648 err = snd_als300_new_pcm(chip); 649 if (err < 0) { 650 dev_err(card->dev, "Could not create PCM\n"); 651 return err; 652 } 653 654 return 0; 655 } 656 657 #ifdef CONFIG_PM_SLEEP 658 static int snd_als300_suspend(struct device *dev) 659 { 660 struct snd_card *card = dev_get_drvdata(dev); 661 struct snd_als300 *chip = card->private_data; 662 663 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 664 snd_ac97_suspend(chip->ac97); 665 return 0; 666 } 667 668 static int snd_als300_resume(struct device *dev) 669 { 670 struct snd_card *card = dev_get_drvdata(dev); 671 struct snd_als300 *chip = card->private_data; 672 673 snd_als300_init(chip); 674 snd_ac97_resume(chip->ac97); 675 676 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 677 return 0; 678 } 679 680 static SIMPLE_DEV_PM_OPS(snd_als300_pm, snd_als300_suspend, snd_als300_resume); 681 #define SND_ALS300_PM_OPS &snd_als300_pm 682 #else 683 #define SND_ALS300_PM_OPS NULL 684 #endif 685 686 static int snd_als300_probe(struct pci_dev *pci, 687 const struct pci_device_id *pci_id) 688 { 689 static int dev; 690 struct snd_card *card; 691 struct snd_als300 *chip; 692 int err, chip_type; 693 694 if (dev >= SNDRV_CARDS) 695 return -ENODEV; 696 if (!enable[dev]) { 697 dev++; 698 return -ENOENT; 699 } 700 701 err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 702 sizeof(*chip), &card); 703 if (err < 0) 704 return err; 705 chip = card->private_data; 706 707 chip_type = pci_id->driver_data; 708 709 err = snd_als300_create(card, pci, chip_type); 710 if (err < 0) 711 goto error; 712 713 strcpy(card->driver, "ALS300"); 714 if (chip->chip_type == DEVICE_ALS300_PLUS) 715 /* don't know much about ALS300+ yet 716 * print revision number for now */ 717 sprintf(card->shortname, "ALS300+ (Rev. %d)", chip->revision); 718 else 719 sprintf(card->shortname, "ALS300 (Rev. %c)", 'A' + 720 chip->revision - 1); 721 sprintf(card->longname, "%s at 0x%lx irq %i", 722 card->shortname, chip->port, chip->irq); 723 724 err = snd_card_register(card); 725 if (err < 0) 726 goto error; 727 728 pci_set_drvdata(pci, card); 729 dev++; 730 return 0; 731 732 error: 733 snd_card_free(card); 734 return err; 735 } 736 737 static struct pci_driver als300_driver = { 738 .name = KBUILD_MODNAME, 739 .id_table = snd_als300_ids, 740 .probe = snd_als300_probe, 741 .driver = { 742 .pm = SND_ALS300_PM_OPS, 743 }, 744 }; 745 746 module_pci_driver(als300_driver); 747