1 /* 2 * als300.c - driver for Avance Logic ALS300/ALS300+ soundcards. 3 * Copyright (C) 2005 by Ash Willis <ashwillis@programmer.net> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 18 * 19 * TODO 20 * 4 channel playback for ALS300+ 21 * gameport 22 * mpu401 23 * opl3 24 * 25 * NOTES 26 * The BLOCK_COUNTER registers for the ALS300(+) return a figure related to 27 * the position in the current period, NOT the whole buffer. It is important 28 * to know which period we are in so we can calculate the correct pointer. 29 * This is why we always use 2 periods. We can then use a flip-flop variable 30 * to keep track of what period we are in. 31 */ 32 33 #include <linux/delay.h> 34 #include <linux/init.h> 35 #include <linux/module.h> 36 #include <linux/pci.h> 37 #include <linux/dma-mapping.h> 38 #include <linux/interrupt.h> 39 #include <linux/slab.h> 40 #include <linux/io.h> 41 42 #include <sound/core.h> 43 #include <sound/control.h> 44 #include <sound/initval.h> 45 #include <sound/pcm.h> 46 #include <sound/pcm_params.h> 47 #include <sound/ac97_codec.h> 48 #include <sound/opl3.h> 49 50 /* snd_als300_set_irq_flag */ 51 #define IRQ_DISABLE 0 52 #define IRQ_ENABLE 1 53 54 /* I/O port layout */ 55 #define AC97_ACCESS 0x00 56 #define AC97_READ 0x04 57 #define AC97_STATUS 0x06 58 #define AC97_DATA_AVAIL (1<<6) 59 #define AC97_BUSY (1<<7) 60 #define ALS300_IRQ_STATUS 0x07 /* ALS300 Only */ 61 #define IRQ_PLAYBACK (1<<3) 62 #define IRQ_CAPTURE (1<<2) 63 #define GCR_DATA 0x08 64 #define GCR_INDEX 0x0C 65 #define ALS300P_DRAM_IRQ_STATUS 0x0D /* ALS300+ Only */ 66 #define MPU_IRQ_STATUS 0x0E /* ALS300 Rev. E+, ALS300+ */ 67 #define ALS300P_IRQ_STATUS 0x0F /* ALS300+ Only */ 68 69 /* General Control Registers */ 70 #define PLAYBACK_START 0x80 71 #define PLAYBACK_END 0x81 72 #define PLAYBACK_CONTROL 0x82 73 #define TRANSFER_START (1<<16) 74 #define FIFO_PAUSE (1<<17) 75 #define RECORD_START 0x83 76 #define RECORD_END 0x84 77 #define RECORD_CONTROL 0x85 78 #define DRAM_WRITE_CONTROL 0x8B 79 #define WRITE_TRANS_START (1<<16) 80 #define DRAM_MODE_2 (1<<17) 81 #define MISC_CONTROL 0x8C 82 #define IRQ_SET_BIT (1<<15) 83 #define VMUTE_NORMAL (1<<20) 84 #define MMUTE_NORMAL (1<<21) 85 #define MUS_VOC_VOL 0x8E 86 #define PLAYBACK_BLOCK_COUNTER 0x9A 87 #define RECORD_BLOCK_COUNTER 0x9B 88 89 #define DEBUG_PLAY_REC 0 90 91 #if DEBUG_PLAY_REC 92 #define snd_als300_dbgplay(format, args...) printk(KERN_ERR format, ##args) 93 #else 94 #define snd_als300_dbgplay(format, args...) 95 #endif 96 97 enum {DEVICE_ALS300, DEVICE_ALS300_PLUS}; 98 99 MODULE_AUTHOR("Ash Willis <ashwillis@programmer.net>"); 100 MODULE_DESCRIPTION("Avance Logic ALS300"); 101 MODULE_LICENSE("GPL"); 102 MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS300},{Avance Logic,ALS300+}}"); 103 104 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 105 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 106 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 107 108 module_param_array(index, int, NULL, 0444); 109 MODULE_PARM_DESC(index, "Index value for ALS300 sound card."); 110 module_param_array(id, charp, NULL, 0444); 111 MODULE_PARM_DESC(id, "ID string for ALS300 sound card."); 112 module_param_array(enable, bool, NULL, 0444); 113 MODULE_PARM_DESC(enable, "Enable ALS300 sound card."); 114 115 struct snd_als300 { 116 unsigned long port; 117 spinlock_t reg_lock; 118 struct snd_card *card; 119 struct pci_dev *pci; 120 121 struct snd_pcm *pcm; 122 struct snd_pcm_substream *playback_substream; 123 struct snd_pcm_substream *capture_substream; 124 125 struct snd_ac97 *ac97; 126 struct snd_opl3 *opl3; 127 128 struct resource *res_port; 129 130 int irq; 131 132 int chip_type; /* ALS300 or ALS300+ */ 133 134 char revision; 135 }; 136 137 struct snd_als300_substream_data { 138 int period_flipflop; 139 int control_register; 140 int block_counter_register; 141 }; 142 143 static const struct pci_device_id snd_als300_ids[] = { 144 { 0x4005, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300 }, 145 { 0x4005, 0x0308, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300_PLUS }, 146 { 0, } 147 }; 148 149 MODULE_DEVICE_TABLE(pci, snd_als300_ids); 150 151 static inline u32 snd_als300_gcr_read(unsigned long port, unsigned short reg) 152 { 153 outb(reg, port+GCR_INDEX); 154 return inl(port+GCR_DATA); 155 } 156 157 static inline void snd_als300_gcr_write(unsigned long port, 158 unsigned short reg, u32 val) 159 { 160 outb(reg, port+GCR_INDEX); 161 outl(val, port+GCR_DATA); 162 } 163 164 /* Enable/Disable Interrupts */ 165 static void snd_als300_set_irq_flag(struct snd_als300 *chip, int cmd) 166 { 167 u32 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); 168 169 /* boolean XOR check, since old vs. new hardware have 170 directly reversed bit setting for ENABLE and DISABLE. 171 ALS300+ acts like newer versions of ALS300 */ 172 if (((chip->revision > 5 || chip->chip_type == DEVICE_ALS300_PLUS) ^ 173 (cmd == IRQ_ENABLE)) == 0) 174 tmp |= IRQ_SET_BIT; 175 else 176 tmp &= ~IRQ_SET_BIT; 177 snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp); 178 } 179 180 static int snd_als300_free(struct snd_als300 *chip) 181 { 182 snd_als300_set_irq_flag(chip, IRQ_DISABLE); 183 if (chip->irq >= 0) 184 free_irq(chip->irq, chip); 185 pci_release_regions(chip->pci); 186 pci_disable_device(chip->pci); 187 kfree(chip); 188 return 0; 189 } 190 191 static int snd_als300_dev_free(struct snd_device *device) 192 { 193 struct snd_als300 *chip = device->device_data; 194 return snd_als300_free(chip); 195 } 196 197 static irqreturn_t snd_als300_interrupt(int irq, void *dev_id) 198 { 199 u8 status; 200 struct snd_als300 *chip = dev_id; 201 struct snd_als300_substream_data *data; 202 203 status = inb(chip->port+ALS300_IRQ_STATUS); 204 if (!status) /* shared IRQ, for different device?? Exit ASAP! */ 205 return IRQ_NONE; 206 207 /* ACK everything ASAP */ 208 outb(status, chip->port+ALS300_IRQ_STATUS); 209 if (status & IRQ_PLAYBACK) { 210 if (chip->pcm && chip->playback_substream) { 211 data = chip->playback_substream->runtime->private_data; 212 data->period_flipflop ^= 1; 213 snd_pcm_period_elapsed(chip->playback_substream); 214 snd_als300_dbgplay("IRQ_PLAYBACK\n"); 215 } 216 } 217 if (status & IRQ_CAPTURE) { 218 if (chip->pcm && chip->capture_substream) { 219 data = chip->capture_substream->runtime->private_data; 220 data->period_flipflop ^= 1; 221 snd_pcm_period_elapsed(chip->capture_substream); 222 snd_als300_dbgplay("IRQ_CAPTURE\n"); 223 } 224 } 225 return IRQ_HANDLED; 226 } 227 228 static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id) 229 { 230 u8 general, mpu, dram; 231 struct snd_als300 *chip = dev_id; 232 struct snd_als300_substream_data *data; 233 234 general = inb(chip->port+ALS300P_IRQ_STATUS); 235 mpu = inb(chip->port+MPU_IRQ_STATUS); 236 dram = inb(chip->port+ALS300P_DRAM_IRQ_STATUS); 237 238 /* shared IRQ, for different device?? Exit ASAP! */ 239 if ((general == 0) && ((mpu & 0x80) == 0) && ((dram & 0x01) == 0)) 240 return IRQ_NONE; 241 242 if (general & IRQ_PLAYBACK) { 243 if (chip->pcm && chip->playback_substream) { 244 outb(IRQ_PLAYBACK, chip->port+ALS300P_IRQ_STATUS); 245 data = chip->playback_substream->runtime->private_data; 246 data->period_flipflop ^= 1; 247 snd_pcm_period_elapsed(chip->playback_substream); 248 snd_als300_dbgplay("IRQ_PLAYBACK\n"); 249 } 250 } 251 if (general & IRQ_CAPTURE) { 252 if (chip->pcm && chip->capture_substream) { 253 outb(IRQ_CAPTURE, chip->port+ALS300P_IRQ_STATUS); 254 data = chip->capture_substream->runtime->private_data; 255 data->period_flipflop ^= 1; 256 snd_pcm_period_elapsed(chip->capture_substream); 257 snd_als300_dbgplay("IRQ_CAPTURE\n"); 258 } 259 } 260 /* FIXME: Ack other interrupt types. Not important right now as 261 * those other devices aren't enabled. */ 262 return IRQ_HANDLED; 263 } 264 265 static void snd_als300_remove(struct pci_dev *pci) 266 { 267 snd_card_free(pci_get_drvdata(pci)); 268 } 269 270 static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97, 271 unsigned short reg) 272 { 273 int i; 274 struct snd_als300 *chip = ac97->private_data; 275 276 for (i = 0; i < 1000; i++) { 277 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) 278 break; 279 udelay(10); 280 } 281 outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS); 282 283 for (i = 0; i < 1000; i++) { 284 if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0) 285 break; 286 udelay(10); 287 } 288 return inw(chip->port+AC97_READ); 289 } 290 291 static void snd_als300_ac97_write(struct snd_ac97 *ac97, 292 unsigned short reg, unsigned short val) 293 { 294 int i; 295 struct snd_als300 *chip = ac97->private_data; 296 297 for (i = 0; i < 1000; i++) { 298 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) 299 break; 300 udelay(10); 301 } 302 outl((reg << 24) | val, chip->port+AC97_ACCESS); 303 } 304 305 static int snd_als300_ac97(struct snd_als300 *chip) 306 { 307 struct snd_ac97_bus *bus; 308 struct snd_ac97_template ac97; 309 int err; 310 static struct snd_ac97_bus_ops ops = { 311 .write = snd_als300_ac97_write, 312 .read = snd_als300_ac97_read, 313 }; 314 315 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus)) < 0) 316 return err; 317 318 memset(&ac97, 0, sizeof(ac97)); 319 ac97.private_data = chip; 320 321 return snd_ac97_mixer(bus, &ac97, &chip->ac97); 322 } 323 324 /* hardware definition 325 * 326 * In AC97 mode, we always use 48k/16bit/stereo. 327 * Any request to change data type is ignored by 328 * the card when it is running outside of legacy 329 * mode. 330 */ 331 static struct snd_pcm_hardware snd_als300_playback_hw = 332 { 333 .info = (SNDRV_PCM_INFO_MMAP | 334 SNDRV_PCM_INFO_INTERLEAVED | 335 SNDRV_PCM_INFO_PAUSE | 336 SNDRV_PCM_INFO_MMAP_VALID), 337 .formats = SNDRV_PCM_FMTBIT_S16, 338 .rates = SNDRV_PCM_RATE_48000, 339 .rate_min = 48000, 340 .rate_max = 48000, 341 .channels_min = 2, 342 .channels_max = 2, 343 .buffer_bytes_max = 64 * 1024, 344 .period_bytes_min = 64, 345 .period_bytes_max = 32 * 1024, 346 .periods_min = 2, 347 .periods_max = 2, 348 }; 349 350 static struct snd_pcm_hardware snd_als300_capture_hw = 351 { 352 .info = (SNDRV_PCM_INFO_MMAP | 353 SNDRV_PCM_INFO_INTERLEAVED | 354 SNDRV_PCM_INFO_PAUSE | 355 SNDRV_PCM_INFO_MMAP_VALID), 356 .formats = SNDRV_PCM_FMTBIT_S16, 357 .rates = SNDRV_PCM_RATE_48000, 358 .rate_min = 48000, 359 .rate_max = 48000, 360 .channels_min = 2, 361 .channels_max = 2, 362 .buffer_bytes_max = 64 * 1024, 363 .period_bytes_min = 64, 364 .period_bytes_max = 32 * 1024, 365 .periods_min = 2, 366 .periods_max = 2, 367 }; 368 369 static int snd_als300_playback_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->playback_substream = substream; 379 runtime->hw = snd_als300_playback_hw; 380 runtime->private_data = data; 381 data->control_register = PLAYBACK_CONTROL; 382 data->block_counter_register = PLAYBACK_BLOCK_COUNTER; 383 return 0; 384 } 385 386 static int snd_als300_playback_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->playback_substream = NULL; 394 snd_pcm_lib_free_pages(substream); 395 return 0; 396 } 397 398 static int snd_als300_capture_open(struct snd_pcm_substream *substream) 399 { 400 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 401 struct snd_pcm_runtime *runtime = substream->runtime; 402 struct snd_als300_substream_data *data = kzalloc(sizeof(*data), 403 GFP_KERNEL); 404 405 if (!data) 406 return -ENOMEM; 407 chip->capture_substream = substream; 408 runtime->hw = snd_als300_capture_hw; 409 runtime->private_data = data; 410 data->control_register = RECORD_CONTROL; 411 data->block_counter_register = RECORD_BLOCK_COUNTER; 412 return 0; 413 } 414 415 static int snd_als300_capture_close(struct snd_pcm_substream *substream) 416 { 417 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 418 struct snd_als300_substream_data *data; 419 420 data = substream->runtime->private_data; 421 kfree(data); 422 chip->capture_substream = NULL; 423 snd_pcm_lib_free_pages(substream); 424 return 0; 425 } 426 427 static int snd_als300_pcm_hw_params(struct snd_pcm_substream *substream, 428 struct snd_pcm_hw_params *hw_params) 429 { 430 return snd_pcm_lib_malloc_pages(substream, 431 params_buffer_bytes(hw_params)); 432 } 433 434 static int snd_als300_pcm_hw_free(struct snd_pcm_substream *substream) 435 { 436 return snd_pcm_lib_free_pages(substream); 437 } 438 439 static int snd_als300_playback_prepare(struct snd_pcm_substream *substream) 440 { 441 u32 tmp; 442 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 443 struct snd_pcm_runtime *runtime = substream->runtime; 444 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 445 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 446 447 spin_lock_irq(&chip->reg_lock); 448 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 449 tmp &= ~TRANSFER_START; 450 451 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", 452 period_bytes, buffer_bytes); 453 454 /* set block size */ 455 tmp &= 0xffff0000; 456 tmp |= period_bytes - 1; 457 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp); 458 459 /* set dma area */ 460 snd_als300_gcr_write(chip->port, PLAYBACK_START, 461 runtime->dma_addr); 462 snd_als300_gcr_write(chip->port, PLAYBACK_END, 463 runtime->dma_addr + buffer_bytes - 1); 464 spin_unlock_irq(&chip->reg_lock); 465 return 0; 466 } 467 468 static int snd_als300_capture_prepare(struct snd_pcm_substream *substream) 469 { 470 u32 tmp; 471 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 472 struct snd_pcm_runtime *runtime = substream->runtime; 473 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 474 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 475 476 spin_lock_irq(&chip->reg_lock); 477 tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL); 478 tmp &= ~TRANSFER_START; 479 480 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes, 481 buffer_bytes); 482 483 /* set block size */ 484 tmp &= 0xffff0000; 485 tmp |= period_bytes - 1; 486 487 /* set dma area */ 488 snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp); 489 snd_als300_gcr_write(chip->port, RECORD_START, 490 runtime->dma_addr); 491 snd_als300_gcr_write(chip->port, RECORD_END, 492 runtime->dma_addr + buffer_bytes - 1); 493 spin_unlock_irq(&chip->reg_lock); 494 return 0; 495 } 496 497 static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd) 498 { 499 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 500 u32 tmp; 501 struct snd_als300_substream_data *data; 502 unsigned short reg; 503 int ret = 0; 504 505 data = substream->runtime->private_data; 506 reg = data->control_register; 507 508 spin_lock(&chip->reg_lock); 509 switch (cmd) { 510 case SNDRV_PCM_TRIGGER_START: 511 case SNDRV_PCM_TRIGGER_RESUME: 512 tmp = snd_als300_gcr_read(chip->port, reg); 513 data->period_flipflop = 1; 514 snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START); 515 snd_als300_dbgplay("TRIGGER START\n"); 516 break; 517 case SNDRV_PCM_TRIGGER_STOP: 518 case SNDRV_PCM_TRIGGER_SUSPEND: 519 tmp = snd_als300_gcr_read(chip->port, reg); 520 snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START); 521 snd_als300_dbgplay("TRIGGER STOP\n"); 522 break; 523 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 524 tmp = snd_als300_gcr_read(chip->port, reg); 525 snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE); 526 snd_als300_dbgplay("TRIGGER PAUSE\n"); 527 break; 528 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 529 tmp = snd_als300_gcr_read(chip->port, reg); 530 snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE); 531 snd_als300_dbgplay("TRIGGER RELEASE\n"); 532 break; 533 default: 534 snd_als300_dbgplay("TRIGGER INVALID\n"); 535 ret = -EINVAL; 536 } 537 spin_unlock(&chip->reg_lock); 538 return ret; 539 } 540 541 static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream) 542 { 543 u16 current_ptr; 544 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 545 struct snd_als300_substream_data *data; 546 unsigned short period_bytes; 547 548 data = substream->runtime->private_data; 549 period_bytes = snd_pcm_lib_period_bytes(substream); 550 551 spin_lock(&chip->reg_lock); 552 current_ptr = (u16) snd_als300_gcr_read(chip->port, 553 data->block_counter_register) + 4; 554 spin_unlock(&chip->reg_lock); 555 if (current_ptr > period_bytes) 556 current_ptr = 0; 557 else 558 current_ptr = period_bytes - current_ptr; 559 560 if (data->period_flipflop == 0) 561 current_ptr += period_bytes; 562 snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr); 563 return bytes_to_frames(substream->runtime, current_ptr); 564 } 565 566 static struct snd_pcm_ops snd_als300_playback_ops = { 567 .open = snd_als300_playback_open, 568 .close = snd_als300_playback_close, 569 .ioctl = snd_pcm_lib_ioctl, 570 .hw_params = snd_als300_pcm_hw_params, 571 .hw_free = snd_als300_pcm_hw_free, 572 .prepare = snd_als300_playback_prepare, 573 .trigger = snd_als300_trigger, 574 .pointer = snd_als300_pointer, 575 }; 576 577 static struct snd_pcm_ops snd_als300_capture_ops = { 578 .open = snd_als300_capture_open, 579 .close = snd_als300_capture_close, 580 .ioctl = snd_pcm_lib_ioctl, 581 .hw_params = snd_als300_pcm_hw_params, 582 .hw_free = snd_als300_pcm_hw_free, 583 .prepare = snd_als300_capture_prepare, 584 .trigger = snd_als300_trigger, 585 .pointer = snd_als300_pointer, 586 }; 587 588 static int snd_als300_new_pcm(struct snd_als300 *chip) 589 { 590 struct snd_pcm *pcm; 591 int err; 592 593 err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm); 594 if (err < 0) 595 return err; 596 pcm->private_data = chip; 597 strcpy(pcm->name, "ALS300"); 598 chip->pcm = pcm; 599 600 /* set operators */ 601 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 602 &snd_als300_playback_ops); 603 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 604 &snd_als300_capture_ops); 605 606 /* pre-allocation of buffers */ 607 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 608 snd_dma_pci_data(chip->pci), 64*1024, 64*1024); 609 return 0; 610 } 611 612 static void snd_als300_init(struct snd_als300 *chip) 613 { 614 unsigned long flags; 615 u32 tmp; 616 617 spin_lock_irqsave(&chip->reg_lock, flags); 618 chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16) 619 & 0x0000000F; 620 /* Setup DRAM */ 621 tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL); 622 snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL, 623 (tmp | DRAM_MODE_2) 624 & ~WRITE_TRANS_START); 625 626 /* Enable IRQ output */ 627 snd_als300_set_irq_flag(chip, IRQ_ENABLE); 628 629 /* Unmute hardware devices so their outputs get routed to 630 * the onboard mixer */ 631 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); 632 snd_als300_gcr_write(chip->port, MISC_CONTROL, 633 tmp | VMUTE_NORMAL | MMUTE_NORMAL); 634 635 /* Reset volumes */ 636 snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0); 637 638 /* Make sure playback transfer is stopped */ 639 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 640 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, 641 tmp & ~TRANSFER_START); 642 spin_unlock_irqrestore(&chip->reg_lock, flags); 643 } 644 645 static int snd_als300_create(struct snd_card *card, 646 struct pci_dev *pci, int chip_type, 647 struct snd_als300 **rchip) 648 { 649 struct snd_als300 *chip; 650 void *irq_handler; 651 int err; 652 653 static struct snd_device_ops ops = { 654 .dev_free = snd_als300_dev_free, 655 }; 656 *rchip = NULL; 657 658 if ((err = pci_enable_device(pci)) < 0) 659 return err; 660 661 if (dma_set_mask(&pci->dev, DMA_BIT_MASK(28)) < 0 || 662 dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(28)) < 0) { 663 dev_err(card->dev, "error setting 28bit DMA mask\n"); 664 pci_disable_device(pci); 665 return -ENXIO; 666 } 667 pci_set_master(pci); 668 669 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 670 if (chip == NULL) { 671 pci_disable_device(pci); 672 return -ENOMEM; 673 } 674 675 chip->card = card; 676 chip->pci = pci; 677 chip->irq = -1; 678 chip->chip_type = chip_type; 679 spin_lock_init(&chip->reg_lock); 680 681 if ((err = pci_request_regions(pci, "ALS300")) < 0) { 682 kfree(chip); 683 pci_disable_device(pci); 684 return err; 685 } 686 chip->port = pci_resource_start(pci, 0); 687 688 if (chip->chip_type == DEVICE_ALS300_PLUS) 689 irq_handler = snd_als300plus_interrupt; 690 else 691 irq_handler = snd_als300_interrupt; 692 693 if (request_irq(pci->irq, irq_handler, IRQF_SHARED, 694 KBUILD_MODNAME, chip)) { 695 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); 696 snd_als300_free(chip); 697 return -EBUSY; 698 } 699 chip->irq = pci->irq; 700 701 702 snd_als300_init(chip); 703 704 err = snd_als300_ac97(chip); 705 if (err < 0) { 706 dev_err(card->dev, "Could not create ac97\n"); 707 snd_als300_free(chip); 708 return err; 709 } 710 711 if ((err = snd_als300_new_pcm(chip)) < 0) { 712 dev_err(card->dev, "Could not create PCM\n"); 713 snd_als300_free(chip); 714 return err; 715 } 716 717 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, 718 chip, &ops)) < 0) { 719 snd_als300_free(chip); 720 return err; 721 } 722 723 *rchip = chip; 724 return 0; 725 } 726 727 #ifdef CONFIG_PM_SLEEP 728 static int snd_als300_suspend(struct device *dev) 729 { 730 struct snd_card *card = dev_get_drvdata(dev); 731 struct snd_als300 *chip = card->private_data; 732 733 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 734 snd_pcm_suspend_all(chip->pcm); 735 snd_ac97_suspend(chip->ac97); 736 return 0; 737 } 738 739 static int snd_als300_resume(struct device *dev) 740 { 741 struct snd_card *card = dev_get_drvdata(dev); 742 struct snd_als300 *chip = card->private_data; 743 744 snd_als300_init(chip); 745 snd_ac97_resume(chip->ac97); 746 747 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 748 return 0; 749 } 750 751 static SIMPLE_DEV_PM_OPS(snd_als300_pm, snd_als300_suspend, snd_als300_resume); 752 #define SND_ALS300_PM_OPS &snd_als300_pm 753 #else 754 #define SND_ALS300_PM_OPS NULL 755 #endif 756 757 static int snd_als300_probe(struct pci_dev *pci, 758 const struct pci_device_id *pci_id) 759 { 760 static int dev; 761 struct snd_card *card; 762 struct snd_als300 *chip; 763 int err, chip_type; 764 765 if (dev >= SNDRV_CARDS) 766 return -ENODEV; 767 if (!enable[dev]) { 768 dev++; 769 return -ENOENT; 770 } 771 772 err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 773 0, &card); 774 775 if (err < 0) 776 return err; 777 778 chip_type = pci_id->driver_data; 779 780 if ((err = snd_als300_create(card, pci, chip_type, &chip)) < 0) { 781 snd_card_free(card); 782 return err; 783 } 784 card->private_data = chip; 785 786 strcpy(card->driver, "ALS300"); 787 if (chip->chip_type == DEVICE_ALS300_PLUS) 788 /* don't know much about ALS300+ yet 789 * print revision number for now */ 790 sprintf(card->shortname, "ALS300+ (Rev. %d)", chip->revision); 791 else 792 sprintf(card->shortname, "ALS300 (Rev. %c)", 'A' + 793 chip->revision - 1); 794 sprintf(card->longname, "%s at 0x%lx irq %i", 795 card->shortname, chip->port, chip->irq); 796 797 if ((err = snd_card_register(card)) < 0) { 798 snd_card_free(card); 799 return err; 800 } 801 pci_set_drvdata(pci, card); 802 dev++; 803 return 0; 804 } 805 806 static struct pci_driver als300_driver = { 807 .name = KBUILD_MODNAME, 808 .id_table = snd_als300_ids, 809 .probe = snd_als300_probe, 810 .remove = snd_als300_remove, 811 .driver = { 812 .pm = SND_ALS300_PM_OPS, 813 }, 814 }; 815 816 module_pci_driver(als300_driver); 817