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