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 int snd_als300_free(struct snd_als300 *chip) 167 { 168 snd_als300_set_irq_flag(chip, IRQ_DISABLE); 169 if (chip->irq >= 0) 170 free_irq(chip->irq, chip); 171 pci_release_regions(chip->pci); 172 pci_disable_device(chip->pci); 173 kfree(chip); 174 return 0; 175 } 176 177 static int snd_als300_dev_free(struct snd_device *device) 178 { 179 struct snd_als300 *chip = device->device_data; 180 return snd_als300_free(chip); 181 } 182 183 static irqreturn_t snd_als300_interrupt(int irq, void *dev_id) 184 { 185 u8 status; 186 struct snd_als300 *chip = dev_id; 187 struct snd_als300_substream_data *data; 188 189 status = inb(chip->port+ALS300_IRQ_STATUS); 190 if (!status) /* shared IRQ, for different device?? Exit ASAP! */ 191 return IRQ_NONE; 192 193 /* ACK everything ASAP */ 194 outb(status, chip->port+ALS300_IRQ_STATUS); 195 if (status & IRQ_PLAYBACK) { 196 if (chip->pcm && chip->playback_substream) { 197 data = chip->playback_substream->runtime->private_data; 198 data->period_flipflop ^= 1; 199 snd_pcm_period_elapsed(chip->playback_substream); 200 snd_als300_dbgplay("IRQ_PLAYBACK\n"); 201 } 202 } 203 if (status & IRQ_CAPTURE) { 204 if (chip->pcm && chip->capture_substream) { 205 data = chip->capture_substream->runtime->private_data; 206 data->period_flipflop ^= 1; 207 snd_pcm_period_elapsed(chip->capture_substream); 208 snd_als300_dbgplay("IRQ_CAPTURE\n"); 209 } 210 } 211 return IRQ_HANDLED; 212 } 213 214 static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id) 215 { 216 u8 general, mpu, dram; 217 struct snd_als300 *chip = dev_id; 218 struct snd_als300_substream_data *data; 219 220 general = inb(chip->port+ALS300P_IRQ_STATUS); 221 mpu = inb(chip->port+MPU_IRQ_STATUS); 222 dram = inb(chip->port+ALS300P_DRAM_IRQ_STATUS); 223 224 /* shared IRQ, for different device?? Exit ASAP! */ 225 if ((general == 0) && ((mpu & 0x80) == 0) && ((dram & 0x01) == 0)) 226 return IRQ_NONE; 227 228 if (general & IRQ_PLAYBACK) { 229 if (chip->pcm && chip->playback_substream) { 230 outb(IRQ_PLAYBACK, chip->port+ALS300P_IRQ_STATUS); 231 data = chip->playback_substream->runtime->private_data; 232 data->period_flipflop ^= 1; 233 snd_pcm_period_elapsed(chip->playback_substream); 234 snd_als300_dbgplay("IRQ_PLAYBACK\n"); 235 } 236 } 237 if (general & IRQ_CAPTURE) { 238 if (chip->pcm && chip->capture_substream) { 239 outb(IRQ_CAPTURE, chip->port+ALS300P_IRQ_STATUS); 240 data = chip->capture_substream->runtime->private_data; 241 data->period_flipflop ^= 1; 242 snd_pcm_period_elapsed(chip->capture_substream); 243 snd_als300_dbgplay("IRQ_CAPTURE\n"); 244 } 245 } 246 /* FIXME: Ack other interrupt types. Not important right now as 247 * those other devices aren't enabled. */ 248 return IRQ_HANDLED; 249 } 250 251 static void snd_als300_remove(struct pci_dev *pci) 252 { 253 snd_card_free(pci_get_drvdata(pci)); 254 } 255 256 static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97, 257 unsigned short reg) 258 { 259 int i; 260 struct snd_als300 *chip = ac97->private_data; 261 262 for (i = 0; i < 1000; i++) { 263 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) 264 break; 265 udelay(10); 266 } 267 outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS); 268 269 for (i = 0; i < 1000; i++) { 270 if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0) 271 break; 272 udelay(10); 273 } 274 return inw(chip->port+AC97_READ); 275 } 276 277 static void snd_als300_ac97_write(struct snd_ac97 *ac97, 278 unsigned short reg, unsigned short val) 279 { 280 int i; 281 struct snd_als300 *chip = ac97->private_data; 282 283 for (i = 0; i < 1000; i++) { 284 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) 285 break; 286 udelay(10); 287 } 288 outl((reg << 24) | val, chip->port+AC97_ACCESS); 289 } 290 291 static int snd_als300_ac97(struct snd_als300 *chip) 292 { 293 struct snd_ac97_bus *bus; 294 struct snd_ac97_template ac97; 295 int err; 296 static const struct snd_ac97_bus_ops ops = { 297 .write = snd_als300_ac97_write, 298 .read = snd_als300_ac97_read, 299 }; 300 301 err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus); 302 if (err < 0) 303 return err; 304 305 memset(&ac97, 0, sizeof(ac97)); 306 ac97.private_data = chip; 307 308 return snd_ac97_mixer(bus, &ac97, &chip->ac97); 309 } 310 311 /* hardware definition 312 * 313 * In AC97 mode, we always use 48k/16bit/stereo. 314 * Any request to change data type is ignored by 315 * the card when it is running outside of legacy 316 * mode. 317 */ 318 static const struct snd_pcm_hardware snd_als300_playback_hw = 319 { 320 .info = (SNDRV_PCM_INFO_MMAP | 321 SNDRV_PCM_INFO_INTERLEAVED | 322 SNDRV_PCM_INFO_PAUSE | 323 SNDRV_PCM_INFO_MMAP_VALID), 324 .formats = SNDRV_PCM_FMTBIT_S16, 325 .rates = SNDRV_PCM_RATE_48000, 326 .rate_min = 48000, 327 .rate_max = 48000, 328 .channels_min = 2, 329 .channels_max = 2, 330 .buffer_bytes_max = 64 * 1024, 331 .period_bytes_min = 64, 332 .period_bytes_max = 32 * 1024, 333 .periods_min = 2, 334 .periods_max = 2, 335 }; 336 337 static const struct snd_pcm_hardware snd_als300_capture_hw = 338 { 339 .info = (SNDRV_PCM_INFO_MMAP | 340 SNDRV_PCM_INFO_INTERLEAVED | 341 SNDRV_PCM_INFO_PAUSE | 342 SNDRV_PCM_INFO_MMAP_VALID), 343 .formats = SNDRV_PCM_FMTBIT_S16, 344 .rates = SNDRV_PCM_RATE_48000, 345 .rate_min = 48000, 346 .rate_max = 48000, 347 .channels_min = 2, 348 .channels_max = 2, 349 .buffer_bytes_max = 64 * 1024, 350 .period_bytes_min = 64, 351 .period_bytes_max = 32 * 1024, 352 .periods_min = 2, 353 .periods_max = 2, 354 }; 355 356 static int snd_als300_playback_open(struct snd_pcm_substream *substream) 357 { 358 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 359 struct snd_pcm_runtime *runtime = substream->runtime; 360 struct snd_als300_substream_data *data = kzalloc(sizeof(*data), 361 GFP_KERNEL); 362 363 if (!data) 364 return -ENOMEM; 365 chip->playback_substream = substream; 366 runtime->hw = snd_als300_playback_hw; 367 runtime->private_data = data; 368 data->control_register = PLAYBACK_CONTROL; 369 data->block_counter_register = PLAYBACK_BLOCK_COUNTER; 370 return 0; 371 } 372 373 static int snd_als300_playback_close(struct snd_pcm_substream *substream) 374 { 375 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 376 struct snd_als300_substream_data *data; 377 378 data = substream->runtime->private_data; 379 kfree(data); 380 chip->playback_substream = NULL; 381 return 0; 382 } 383 384 static int snd_als300_capture_open(struct snd_pcm_substream *substream) 385 { 386 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 387 struct snd_pcm_runtime *runtime = substream->runtime; 388 struct snd_als300_substream_data *data = kzalloc(sizeof(*data), 389 GFP_KERNEL); 390 391 if (!data) 392 return -ENOMEM; 393 chip->capture_substream = substream; 394 runtime->hw = snd_als300_capture_hw; 395 runtime->private_data = data; 396 data->control_register = RECORD_CONTROL; 397 data->block_counter_register = RECORD_BLOCK_COUNTER; 398 return 0; 399 } 400 401 static int snd_als300_capture_close(struct snd_pcm_substream *substream) 402 { 403 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 404 struct snd_als300_substream_data *data; 405 406 data = substream->runtime->private_data; 407 kfree(data); 408 chip->capture_substream = NULL; 409 return 0; 410 } 411 412 static int snd_als300_playback_prepare(struct snd_pcm_substream *substream) 413 { 414 u32 tmp; 415 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 416 struct snd_pcm_runtime *runtime = substream->runtime; 417 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 418 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 419 420 spin_lock_irq(&chip->reg_lock); 421 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 422 tmp &= ~TRANSFER_START; 423 424 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", 425 period_bytes, buffer_bytes); 426 427 /* set block size */ 428 tmp &= 0xffff0000; 429 tmp |= period_bytes - 1; 430 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp); 431 432 /* set dma area */ 433 snd_als300_gcr_write(chip->port, PLAYBACK_START, 434 runtime->dma_addr); 435 snd_als300_gcr_write(chip->port, PLAYBACK_END, 436 runtime->dma_addr + buffer_bytes - 1); 437 spin_unlock_irq(&chip->reg_lock); 438 return 0; 439 } 440 441 static int snd_als300_capture_prepare(struct snd_pcm_substream *substream) 442 { 443 u32 tmp; 444 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 445 struct snd_pcm_runtime *runtime = substream->runtime; 446 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 447 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 448 449 spin_lock_irq(&chip->reg_lock); 450 tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL); 451 tmp &= ~TRANSFER_START; 452 453 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes, 454 buffer_bytes); 455 456 /* set block size */ 457 tmp &= 0xffff0000; 458 tmp |= period_bytes - 1; 459 460 /* set dma area */ 461 snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp); 462 snd_als300_gcr_write(chip->port, RECORD_START, 463 runtime->dma_addr); 464 snd_als300_gcr_write(chip->port, RECORD_END, 465 runtime->dma_addr + buffer_bytes - 1); 466 spin_unlock_irq(&chip->reg_lock); 467 return 0; 468 } 469 470 static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd) 471 { 472 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 473 u32 tmp; 474 struct snd_als300_substream_data *data; 475 unsigned short reg; 476 int ret = 0; 477 478 data = substream->runtime->private_data; 479 reg = data->control_register; 480 481 spin_lock(&chip->reg_lock); 482 switch (cmd) { 483 case SNDRV_PCM_TRIGGER_START: 484 case SNDRV_PCM_TRIGGER_RESUME: 485 tmp = snd_als300_gcr_read(chip->port, reg); 486 data->period_flipflop = 1; 487 snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START); 488 snd_als300_dbgplay("TRIGGER START\n"); 489 break; 490 case SNDRV_PCM_TRIGGER_STOP: 491 case SNDRV_PCM_TRIGGER_SUSPEND: 492 tmp = snd_als300_gcr_read(chip->port, reg); 493 snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START); 494 snd_als300_dbgplay("TRIGGER STOP\n"); 495 break; 496 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 497 tmp = snd_als300_gcr_read(chip->port, reg); 498 snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE); 499 snd_als300_dbgplay("TRIGGER PAUSE\n"); 500 break; 501 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 502 tmp = snd_als300_gcr_read(chip->port, reg); 503 snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE); 504 snd_als300_dbgplay("TRIGGER RELEASE\n"); 505 break; 506 default: 507 snd_als300_dbgplay("TRIGGER INVALID\n"); 508 ret = -EINVAL; 509 } 510 spin_unlock(&chip->reg_lock); 511 return ret; 512 } 513 514 static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream) 515 { 516 u16 current_ptr; 517 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 518 struct snd_als300_substream_data *data; 519 unsigned short period_bytes; 520 521 data = substream->runtime->private_data; 522 period_bytes = snd_pcm_lib_period_bytes(substream); 523 524 spin_lock(&chip->reg_lock); 525 current_ptr = (u16) snd_als300_gcr_read(chip->port, 526 data->block_counter_register) + 4; 527 spin_unlock(&chip->reg_lock); 528 if (current_ptr > period_bytes) 529 current_ptr = 0; 530 else 531 current_ptr = period_bytes - current_ptr; 532 533 if (data->period_flipflop == 0) 534 current_ptr += period_bytes; 535 snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr); 536 return bytes_to_frames(substream->runtime, current_ptr); 537 } 538 539 static const struct snd_pcm_ops snd_als300_playback_ops = { 540 .open = snd_als300_playback_open, 541 .close = snd_als300_playback_close, 542 .prepare = snd_als300_playback_prepare, 543 .trigger = snd_als300_trigger, 544 .pointer = snd_als300_pointer, 545 }; 546 547 static const struct snd_pcm_ops snd_als300_capture_ops = { 548 .open = snd_als300_capture_open, 549 .close = snd_als300_capture_close, 550 .prepare = snd_als300_capture_prepare, 551 .trigger = snd_als300_trigger, 552 .pointer = snd_als300_pointer, 553 }; 554 555 static int snd_als300_new_pcm(struct snd_als300 *chip) 556 { 557 struct snd_pcm *pcm; 558 int err; 559 560 err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm); 561 if (err < 0) 562 return err; 563 pcm->private_data = chip; 564 strcpy(pcm->name, "ALS300"); 565 chip->pcm = pcm; 566 567 /* set operators */ 568 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 569 &snd_als300_playback_ops); 570 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 571 &snd_als300_capture_ops); 572 573 /* pre-allocation of buffers */ 574 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev, 575 64*1024, 64*1024); 576 return 0; 577 } 578 579 static void snd_als300_init(struct snd_als300 *chip) 580 { 581 unsigned long flags; 582 u32 tmp; 583 584 spin_lock_irqsave(&chip->reg_lock, flags); 585 chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16) 586 & 0x0000000F; 587 /* Setup DRAM */ 588 tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL); 589 snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL, 590 (tmp | DRAM_MODE_2) 591 & ~WRITE_TRANS_START); 592 593 /* Enable IRQ output */ 594 snd_als300_set_irq_flag(chip, IRQ_ENABLE); 595 596 /* Unmute hardware devices so their outputs get routed to 597 * the onboard mixer */ 598 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); 599 snd_als300_gcr_write(chip->port, MISC_CONTROL, 600 tmp | VMUTE_NORMAL | MMUTE_NORMAL); 601 602 /* Reset volumes */ 603 snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0); 604 605 /* Make sure playback transfer is stopped */ 606 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 607 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, 608 tmp & ~TRANSFER_START); 609 spin_unlock_irqrestore(&chip->reg_lock, flags); 610 } 611 612 static int snd_als300_create(struct snd_card *card, 613 struct pci_dev *pci, int chip_type, 614 struct snd_als300 **rchip) 615 { 616 struct snd_als300 *chip; 617 void *irq_handler; 618 int err; 619 620 static const struct snd_device_ops ops = { 621 .dev_free = snd_als300_dev_free, 622 }; 623 *rchip = NULL; 624 625 err = pci_enable_device(pci); 626 if (err < 0) 627 return err; 628 629 if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(28))) { 630 dev_err(card->dev, "error setting 28bit DMA mask\n"); 631 pci_disable_device(pci); 632 return -ENXIO; 633 } 634 pci_set_master(pci); 635 636 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 637 if (chip == NULL) { 638 pci_disable_device(pci); 639 return -ENOMEM; 640 } 641 642 chip->card = card; 643 chip->pci = pci; 644 chip->irq = -1; 645 chip->chip_type = chip_type; 646 spin_lock_init(&chip->reg_lock); 647 648 err = pci_request_regions(pci, "ALS300"); 649 if (err < 0) { 650 kfree(chip); 651 pci_disable_device(pci); 652 return err; 653 } 654 chip->port = pci_resource_start(pci, 0); 655 656 if (chip->chip_type == DEVICE_ALS300_PLUS) 657 irq_handler = snd_als300plus_interrupt; 658 else 659 irq_handler = snd_als300_interrupt; 660 661 if (request_irq(pci->irq, irq_handler, IRQF_SHARED, 662 KBUILD_MODNAME, chip)) { 663 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); 664 snd_als300_free(chip); 665 return -EBUSY; 666 } 667 chip->irq = pci->irq; 668 card->sync_irq = chip->irq; 669 670 snd_als300_init(chip); 671 672 err = snd_als300_ac97(chip); 673 if (err < 0) { 674 dev_err(card->dev, "Could not create ac97\n"); 675 snd_als300_free(chip); 676 return err; 677 } 678 679 err = snd_als300_new_pcm(chip); 680 if (err < 0) { 681 dev_err(card->dev, "Could not create PCM\n"); 682 snd_als300_free(chip); 683 return err; 684 } 685 686 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 687 if (err < 0) { 688 snd_als300_free(chip); 689 return err; 690 } 691 692 *rchip = chip; 693 return 0; 694 } 695 696 #ifdef CONFIG_PM_SLEEP 697 static int snd_als300_suspend(struct device *dev) 698 { 699 struct snd_card *card = dev_get_drvdata(dev); 700 struct snd_als300 *chip = card->private_data; 701 702 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 703 snd_ac97_suspend(chip->ac97); 704 return 0; 705 } 706 707 static int snd_als300_resume(struct device *dev) 708 { 709 struct snd_card *card = dev_get_drvdata(dev); 710 struct snd_als300 *chip = card->private_data; 711 712 snd_als300_init(chip); 713 snd_ac97_resume(chip->ac97); 714 715 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 716 return 0; 717 } 718 719 static SIMPLE_DEV_PM_OPS(snd_als300_pm, snd_als300_suspend, snd_als300_resume); 720 #define SND_ALS300_PM_OPS &snd_als300_pm 721 #else 722 #define SND_ALS300_PM_OPS NULL 723 #endif 724 725 static int snd_als300_probe(struct pci_dev *pci, 726 const struct pci_device_id *pci_id) 727 { 728 static int dev; 729 struct snd_card *card; 730 struct snd_als300 *chip; 731 int err, chip_type; 732 733 if (dev >= SNDRV_CARDS) 734 return -ENODEV; 735 if (!enable[dev]) { 736 dev++; 737 return -ENOENT; 738 } 739 740 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 741 0, &card); 742 743 if (err < 0) 744 return err; 745 746 chip_type = pci_id->driver_data; 747 748 err = snd_als300_create(card, pci, chip_type, &chip); 749 if (err < 0) { 750 snd_card_free(card); 751 return err; 752 } 753 card->private_data = chip; 754 755 strcpy(card->driver, "ALS300"); 756 if (chip->chip_type == DEVICE_ALS300_PLUS) 757 /* don't know much about ALS300+ yet 758 * print revision number for now */ 759 sprintf(card->shortname, "ALS300+ (Rev. %d)", chip->revision); 760 else 761 sprintf(card->shortname, "ALS300 (Rev. %c)", 'A' + 762 chip->revision - 1); 763 sprintf(card->longname, "%s at 0x%lx irq %i", 764 card->shortname, chip->port, chip->irq); 765 766 err = snd_card_register(card); 767 if (err < 0) { 768 snd_card_free(card); 769 return err; 770 } 771 pci_set_drvdata(pci, card); 772 dev++; 773 return 0; 774 } 775 776 static struct pci_driver als300_driver = { 777 .name = KBUILD_MODNAME, 778 .id_table = snd_als300_ids, 779 .probe = snd_als300_probe, 780 .remove = snd_als300_remove, 781 .driver = { 782 .pm = SND_ALS300_PM_OPS, 783 }, 784 }; 785 786 module_pci_driver(als300_driver); 787