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 MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS300},{Avance Logic,ALS300+}}"); 90 91 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 92 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 93 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 94 95 module_param_array(index, int, NULL, 0444); 96 MODULE_PARM_DESC(index, "Index value for ALS300 sound card."); 97 module_param_array(id, charp, NULL, 0444); 98 MODULE_PARM_DESC(id, "ID string for ALS300 sound card."); 99 module_param_array(enable, bool, NULL, 0444); 100 MODULE_PARM_DESC(enable, "Enable ALS300 sound card."); 101 102 struct snd_als300 { 103 unsigned long port; 104 spinlock_t reg_lock; 105 struct snd_card *card; 106 struct pci_dev *pci; 107 108 struct snd_pcm *pcm; 109 struct snd_pcm_substream *playback_substream; 110 struct snd_pcm_substream *capture_substream; 111 112 struct snd_ac97 *ac97; 113 struct snd_opl3 *opl3; 114 115 struct resource *res_port; 116 117 int irq; 118 119 int chip_type; /* ALS300 or ALS300+ */ 120 121 char revision; 122 }; 123 124 struct snd_als300_substream_data { 125 int period_flipflop; 126 int control_register; 127 int block_counter_register; 128 }; 129 130 static const struct pci_device_id snd_als300_ids[] = { 131 { 0x4005, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300 }, 132 { 0x4005, 0x0308, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300_PLUS }, 133 { 0, } 134 }; 135 136 MODULE_DEVICE_TABLE(pci, snd_als300_ids); 137 138 static inline u32 snd_als300_gcr_read(unsigned long port, unsigned short reg) 139 { 140 outb(reg, port+GCR_INDEX); 141 return inl(port+GCR_DATA); 142 } 143 144 static inline void snd_als300_gcr_write(unsigned long port, 145 unsigned short reg, u32 val) 146 { 147 outb(reg, port+GCR_INDEX); 148 outl(val, port+GCR_DATA); 149 } 150 151 /* Enable/Disable Interrupts */ 152 static void snd_als300_set_irq_flag(struct snd_als300 *chip, int cmd) 153 { 154 u32 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); 155 156 /* boolean XOR check, since old vs. new hardware have 157 directly reversed bit setting for ENABLE and DISABLE. 158 ALS300+ acts like newer versions of ALS300 */ 159 if (((chip->revision > 5 || chip->chip_type == DEVICE_ALS300_PLUS) ^ 160 (cmd == IRQ_ENABLE)) == 0) 161 tmp |= IRQ_SET_BIT; 162 else 163 tmp &= ~IRQ_SET_BIT; 164 snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp); 165 } 166 167 static int snd_als300_free(struct snd_als300 *chip) 168 { 169 snd_als300_set_irq_flag(chip, IRQ_DISABLE); 170 if (chip->irq >= 0) 171 free_irq(chip->irq, chip); 172 pci_release_regions(chip->pci); 173 pci_disable_device(chip->pci); 174 kfree(chip); 175 return 0; 176 } 177 178 static int snd_als300_dev_free(struct snd_device *device) 179 { 180 struct snd_als300 *chip = device->device_data; 181 return snd_als300_free(chip); 182 } 183 184 static irqreturn_t snd_als300_interrupt(int irq, void *dev_id) 185 { 186 u8 status; 187 struct snd_als300 *chip = dev_id; 188 struct snd_als300_substream_data *data; 189 190 status = inb(chip->port+ALS300_IRQ_STATUS); 191 if (!status) /* shared IRQ, for different device?? Exit ASAP! */ 192 return IRQ_NONE; 193 194 /* ACK everything ASAP */ 195 outb(status, chip->port+ALS300_IRQ_STATUS); 196 if (status & IRQ_PLAYBACK) { 197 if (chip->pcm && chip->playback_substream) { 198 data = chip->playback_substream->runtime->private_data; 199 data->period_flipflop ^= 1; 200 snd_pcm_period_elapsed(chip->playback_substream); 201 snd_als300_dbgplay("IRQ_PLAYBACK\n"); 202 } 203 } 204 if (status & IRQ_CAPTURE) { 205 if (chip->pcm && chip->capture_substream) { 206 data = chip->capture_substream->runtime->private_data; 207 data->period_flipflop ^= 1; 208 snd_pcm_period_elapsed(chip->capture_substream); 209 snd_als300_dbgplay("IRQ_CAPTURE\n"); 210 } 211 } 212 return IRQ_HANDLED; 213 } 214 215 static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id) 216 { 217 u8 general, mpu, dram; 218 struct snd_als300 *chip = dev_id; 219 struct snd_als300_substream_data *data; 220 221 general = inb(chip->port+ALS300P_IRQ_STATUS); 222 mpu = inb(chip->port+MPU_IRQ_STATUS); 223 dram = inb(chip->port+ALS300P_DRAM_IRQ_STATUS); 224 225 /* shared IRQ, for different device?? Exit ASAP! */ 226 if ((general == 0) && ((mpu & 0x80) == 0) && ((dram & 0x01) == 0)) 227 return IRQ_NONE; 228 229 if (general & IRQ_PLAYBACK) { 230 if (chip->pcm && chip->playback_substream) { 231 outb(IRQ_PLAYBACK, chip->port+ALS300P_IRQ_STATUS); 232 data = chip->playback_substream->runtime->private_data; 233 data->period_flipflop ^= 1; 234 snd_pcm_period_elapsed(chip->playback_substream); 235 snd_als300_dbgplay("IRQ_PLAYBACK\n"); 236 } 237 } 238 if (general & IRQ_CAPTURE) { 239 if (chip->pcm && chip->capture_substream) { 240 outb(IRQ_CAPTURE, chip->port+ALS300P_IRQ_STATUS); 241 data = chip->capture_substream->runtime->private_data; 242 data->period_flipflop ^= 1; 243 snd_pcm_period_elapsed(chip->capture_substream); 244 snd_als300_dbgplay("IRQ_CAPTURE\n"); 245 } 246 } 247 /* FIXME: Ack other interrupt types. Not important right now as 248 * those other devices aren't enabled. */ 249 return IRQ_HANDLED; 250 } 251 252 static void snd_als300_remove(struct pci_dev *pci) 253 { 254 snd_card_free(pci_get_drvdata(pci)); 255 } 256 257 static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97, 258 unsigned short reg) 259 { 260 int i; 261 struct snd_als300 *chip = ac97->private_data; 262 263 for (i = 0; i < 1000; i++) { 264 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) 265 break; 266 udelay(10); 267 } 268 outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS); 269 270 for (i = 0; i < 1000; i++) { 271 if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0) 272 break; 273 udelay(10); 274 } 275 return inw(chip->port+AC97_READ); 276 } 277 278 static void snd_als300_ac97_write(struct snd_ac97 *ac97, 279 unsigned short reg, unsigned short val) 280 { 281 int i; 282 struct snd_als300 *chip = ac97->private_data; 283 284 for (i = 0; i < 1000; i++) { 285 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) 286 break; 287 udelay(10); 288 } 289 outl((reg << 24) | val, chip->port+AC97_ACCESS); 290 } 291 292 static int snd_als300_ac97(struct snd_als300 *chip) 293 { 294 struct snd_ac97_bus *bus; 295 struct snd_ac97_template ac97; 296 int err; 297 static struct snd_ac97_bus_ops ops = { 298 .write = snd_als300_ac97_write, 299 .read = snd_als300_ac97_read, 300 }; 301 302 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus)) < 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 snd_pcm_lib_free_pages(substream); 382 return 0; 383 } 384 385 static int snd_als300_capture_open(struct snd_pcm_substream *substream) 386 { 387 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 388 struct snd_pcm_runtime *runtime = substream->runtime; 389 struct snd_als300_substream_data *data = kzalloc(sizeof(*data), 390 GFP_KERNEL); 391 392 if (!data) 393 return -ENOMEM; 394 chip->capture_substream = substream; 395 runtime->hw = snd_als300_capture_hw; 396 runtime->private_data = data; 397 data->control_register = RECORD_CONTROL; 398 data->block_counter_register = RECORD_BLOCK_COUNTER; 399 return 0; 400 } 401 402 static int snd_als300_capture_close(struct snd_pcm_substream *substream) 403 { 404 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 405 struct snd_als300_substream_data *data; 406 407 data = substream->runtime->private_data; 408 kfree(data); 409 chip->capture_substream = NULL; 410 snd_pcm_lib_free_pages(substream); 411 return 0; 412 } 413 414 static int snd_als300_pcm_hw_params(struct snd_pcm_substream *substream, 415 struct snd_pcm_hw_params *hw_params) 416 { 417 return snd_pcm_lib_malloc_pages(substream, 418 params_buffer_bytes(hw_params)); 419 } 420 421 static int snd_als300_pcm_hw_free(struct snd_pcm_substream *substream) 422 { 423 return snd_pcm_lib_free_pages(substream); 424 } 425 426 static int snd_als300_playback_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, PLAYBACK_CONTROL); 436 tmp &= ~TRANSFER_START; 437 438 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", 439 period_bytes, buffer_bytes); 440 441 /* set block size */ 442 tmp &= 0xffff0000; 443 tmp |= period_bytes - 1; 444 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp); 445 446 /* set dma area */ 447 snd_als300_gcr_write(chip->port, PLAYBACK_START, 448 runtime->dma_addr); 449 snd_als300_gcr_write(chip->port, PLAYBACK_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_capture_prepare(struct snd_pcm_substream *substream) 456 { 457 u32 tmp; 458 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 459 struct snd_pcm_runtime *runtime = substream->runtime; 460 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 461 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 462 463 spin_lock_irq(&chip->reg_lock); 464 tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL); 465 tmp &= ~TRANSFER_START; 466 467 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes, 468 buffer_bytes); 469 470 /* set block size */ 471 tmp &= 0xffff0000; 472 tmp |= period_bytes - 1; 473 474 /* set dma area */ 475 snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp); 476 snd_als300_gcr_write(chip->port, RECORD_START, 477 runtime->dma_addr); 478 snd_als300_gcr_write(chip->port, RECORD_END, 479 runtime->dma_addr + buffer_bytes - 1); 480 spin_unlock_irq(&chip->reg_lock); 481 return 0; 482 } 483 484 static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd) 485 { 486 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 487 u32 tmp; 488 struct snd_als300_substream_data *data; 489 unsigned short reg; 490 int ret = 0; 491 492 data = substream->runtime->private_data; 493 reg = data->control_register; 494 495 spin_lock(&chip->reg_lock); 496 switch (cmd) { 497 case SNDRV_PCM_TRIGGER_START: 498 case SNDRV_PCM_TRIGGER_RESUME: 499 tmp = snd_als300_gcr_read(chip->port, reg); 500 data->period_flipflop = 1; 501 snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START); 502 snd_als300_dbgplay("TRIGGER START\n"); 503 break; 504 case SNDRV_PCM_TRIGGER_STOP: 505 case SNDRV_PCM_TRIGGER_SUSPEND: 506 tmp = snd_als300_gcr_read(chip->port, reg); 507 snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START); 508 snd_als300_dbgplay("TRIGGER STOP\n"); 509 break; 510 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 511 tmp = snd_als300_gcr_read(chip->port, reg); 512 snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE); 513 snd_als300_dbgplay("TRIGGER PAUSE\n"); 514 break; 515 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 516 tmp = snd_als300_gcr_read(chip->port, reg); 517 snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE); 518 snd_als300_dbgplay("TRIGGER RELEASE\n"); 519 break; 520 default: 521 snd_als300_dbgplay("TRIGGER INVALID\n"); 522 ret = -EINVAL; 523 } 524 spin_unlock(&chip->reg_lock); 525 return ret; 526 } 527 528 static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream) 529 { 530 u16 current_ptr; 531 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 532 struct snd_als300_substream_data *data; 533 unsigned short period_bytes; 534 535 data = substream->runtime->private_data; 536 period_bytes = snd_pcm_lib_period_bytes(substream); 537 538 spin_lock(&chip->reg_lock); 539 current_ptr = (u16) snd_als300_gcr_read(chip->port, 540 data->block_counter_register) + 4; 541 spin_unlock(&chip->reg_lock); 542 if (current_ptr > period_bytes) 543 current_ptr = 0; 544 else 545 current_ptr = period_bytes - current_ptr; 546 547 if (data->period_flipflop == 0) 548 current_ptr += period_bytes; 549 snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr); 550 return bytes_to_frames(substream->runtime, current_ptr); 551 } 552 553 static const struct snd_pcm_ops snd_als300_playback_ops = { 554 .open = snd_als300_playback_open, 555 .close = snd_als300_playback_close, 556 .ioctl = snd_pcm_lib_ioctl, 557 .hw_params = snd_als300_pcm_hw_params, 558 .hw_free = snd_als300_pcm_hw_free, 559 .prepare = snd_als300_playback_prepare, 560 .trigger = snd_als300_trigger, 561 .pointer = snd_als300_pointer, 562 }; 563 564 static const struct snd_pcm_ops snd_als300_capture_ops = { 565 .open = snd_als300_capture_open, 566 .close = snd_als300_capture_close, 567 .ioctl = snd_pcm_lib_ioctl, 568 .hw_params = snd_als300_pcm_hw_params, 569 .hw_free = snd_als300_pcm_hw_free, 570 .prepare = snd_als300_capture_prepare, 571 .trigger = snd_als300_trigger, 572 .pointer = snd_als300_pointer, 573 }; 574 575 static int snd_als300_new_pcm(struct snd_als300 *chip) 576 { 577 struct snd_pcm *pcm; 578 int err; 579 580 err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm); 581 if (err < 0) 582 return err; 583 pcm->private_data = chip; 584 strcpy(pcm->name, "ALS300"); 585 chip->pcm = pcm; 586 587 /* set operators */ 588 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 589 &snd_als300_playback_ops); 590 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 591 &snd_als300_capture_ops); 592 593 /* pre-allocation of buffers */ 594 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 595 &chip->pci->dev, 596 64*1024, 64*1024); 597 return 0; 598 } 599 600 static void snd_als300_init(struct snd_als300 *chip) 601 { 602 unsigned long flags; 603 u32 tmp; 604 605 spin_lock_irqsave(&chip->reg_lock, flags); 606 chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16) 607 & 0x0000000F; 608 /* Setup DRAM */ 609 tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL); 610 snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL, 611 (tmp | DRAM_MODE_2) 612 & ~WRITE_TRANS_START); 613 614 /* Enable IRQ output */ 615 snd_als300_set_irq_flag(chip, IRQ_ENABLE); 616 617 /* Unmute hardware devices so their outputs get routed to 618 * the onboard mixer */ 619 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); 620 snd_als300_gcr_write(chip->port, MISC_CONTROL, 621 tmp | VMUTE_NORMAL | MMUTE_NORMAL); 622 623 /* Reset volumes */ 624 snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0); 625 626 /* Make sure playback transfer is stopped */ 627 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 628 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, 629 tmp & ~TRANSFER_START); 630 spin_unlock_irqrestore(&chip->reg_lock, flags); 631 } 632 633 static int snd_als300_create(struct snd_card *card, 634 struct pci_dev *pci, int chip_type, 635 struct snd_als300 **rchip) 636 { 637 struct snd_als300 *chip; 638 void *irq_handler; 639 int err; 640 641 static struct snd_device_ops ops = { 642 .dev_free = snd_als300_dev_free, 643 }; 644 *rchip = NULL; 645 646 if ((err = pci_enable_device(pci)) < 0) 647 return err; 648 649 if (dma_set_mask(&pci->dev, DMA_BIT_MASK(28)) < 0 || 650 dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(28)) < 0) { 651 dev_err(card->dev, "error setting 28bit DMA mask\n"); 652 pci_disable_device(pci); 653 return -ENXIO; 654 } 655 pci_set_master(pci); 656 657 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 658 if (chip == NULL) { 659 pci_disable_device(pci); 660 return -ENOMEM; 661 } 662 663 chip->card = card; 664 chip->pci = pci; 665 chip->irq = -1; 666 chip->chip_type = chip_type; 667 spin_lock_init(&chip->reg_lock); 668 669 if ((err = pci_request_regions(pci, "ALS300")) < 0) { 670 kfree(chip); 671 pci_disable_device(pci); 672 return err; 673 } 674 chip->port = pci_resource_start(pci, 0); 675 676 if (chip->chip_type == DEVICE_ALS300_PLUS) 677 irq_handler = snd_als300plus_interrupt; 678 else 679 irq_handler = snd_als300_interrupt; 680 681 if (request_irq(pci->irq, irq_handler, IRQF_SHARED, 682 KBUILD_MODNAME, chip)) { 683 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); 684 snd_als300_free(chip); 685 return -EBUSY; 686 } 687 chip->irq = pci->irq; 688 689 690 snd_als300_init(chip); 691 692 err = snd_als300_ac97(chip); 693 if (err < 0) { 694 dev_err(card->dev, "Could not create ac97\n"); 695 snd_als300_free(chip); 696 return err; 697 } 698 699 if ((err = snd_als300_new_pcm(chip)) < 0) { 700 dev_err(card->dev, "Could not create PCM\n"); 701 snd_als300_free(chip); 702 return err; 703 } 704 705 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, 706 chip, &ops)) < 0) { 707 snd_als300_free(chip); 708 return err; 709 } 710 711 *rchip = chip; 712 return 0; 713 } 714 715 #ifdef CONFIG_PM_SLEEP 716 static int snd_als300_suspend(struct device *dev) 717 { 718 struct snd_card *card = dev_get_drvdata(dev); 719 struct snd_als300 *chip = card->private_data; 720 721 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 722 snd_ac97_suspend(chip->ac97); 723 return 0; 724 } 725 726 static int snd_als300_resume(struct device *dev) 727 { 728 struct snd_card *card = dev_get_drvdata(dev); 729 struct snd_als300 *chip = card->private_data; 730 731 snd_als300_init(chip); 732 snd_ac97_resume(chip->ac97); 733 734 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 735 return 0; 736 } 737 738 static SIMPLE_DEV_PM_OPS(snd_als300_pm, snd_als300_suspend, snd_als300_resume); 739 #define SND_ALS300_PM_OPS &snd_als300_pm 740 #else 741 #define SND_ALS300_PM_OPS NULL 742 #endif 743 744 static int snd_als300_probe(struct pci_dev *pci, 745 const struct pci_device_id *pci_id) 746 { 747 static int dev; 748 struct snd_card *card; 749 struct snd_als300 *chip; 750 int err, chip_type; 751 752 if (dev >= SNDRV_CARDS) 753 return -ENODEV; 754 if (!enable[dev]) { 755 dev++; 756 return -ENOENT; 757 } 758 759 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 760 0, &card); 761 762 if (err < 0) 763 return err; 764 765 chip_type = pci_id->driver_data; 766 767 if ((err = snd_als300_create(card, pci, chip_type, &chip)) < 0) { 768 snd_card_free(card); 769 return err; 770 } 771 card->private_data = chip; 772 773 strcpy(card->driver, "ALS300"); 774 if (chip->chip_type == DEVICE_ALS300_PLUS) 775 /* don't know much about ALS300+ yet 776 * print revision number for now */ 777 sprintf(card->shortname, "ALS300+ (Rev. %d)", chip->revision); 778 else 779 sprintf(card->shortname, "ALS300 (Rev. %c)", 'A' + 780 chip->revision - 1); 781 sprintf(card->longname, "%s at 0x%lx irq %i", 782 card->shortname, chip->port, chip->irq); 783 784 if ((err = snd_card_register(card)) < 0) { 785 snd_card_free(card); 786 return err; 787 } 788 pci_set_drvdata(pci, card); 789 dev++; 790 return 0; 791 } 792 793 static struct pci_driver als300_driver = { 794 .name = KBUILD_MODNAME, 795 .id_table = snd_als300_ids, 796 .probe = snd_als300_probe, 797 .remove = snd_als300_remove, 798 .driver = { 799 .pm = SND_ALS300_PM_OPS, 800 }, 801 }; 802 803 module_pci_driver(als300_driver); 804