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 <sound/driver.h> 34 #include <linux/delay.h> 35 #include <linux/init.h> 36 #include <linux/moduleparam.h> 37 #include <linux/pci.h> 38 #include <linux/dma-mapping.h> 39 #include <linux/interrupt.h> 40 #include <linux/slab.h> 41 42 #include <asm/io.h> 43 44 #include <sound/core.h> 45 #include <sound/control.h> 46 #include <sound/initval.h> 47 #include <sound/pcm.h> 48 #include <sound/pcm_params.h> 49 #include <sound/ac97_codec.h> 50 #include <sound/opl3.h> 51 52 /* snd_als300_set_irq_flag */ 53 #define IRQ_DISABLE 0 54 #define IRQ_ENABLE 1 55 56 /* I/O port layout */ 57 #define AC97_ACCESS 0x00 58 #define AC97_READ 0x04 59 #define AC97_STATUS 0x06 60 #define AC97_DATA_AVAIL (1<<6) 61 #define AC97_BUSY (1<<7) 62 #define ALS300_IRQ_STATUS 0x07 /* ALS300 Only */ 63 #define IRQ_PLAYBACK (1<<3) 64 #define IRQ_CAPTURE (1<<2) 65 #define GCR_DATA 0x08 66 #define GCR_INDEX 0x0C 67 #define ALS300P_DRAM_IRQ_STATUS 0x0D /* ALS300+ Only */ 68 #define MPU_IRQ_STATUS 0x0E /* ALS300 Rev. E+, ALS300+ */ 69 #define ALS300P_IRQ_STATUS 0x0F /* ALS300+ Only */ 70 71 /* General Control Registers */ 72 #define PLAYBACK_START 0x80 73 #define PLAYBACK_END 0x81 74 #define PLAYBACK_CONTROL 0x82 75 #define TRANSFER_START (1<<16) 76 #define FIFO_PAUSE (1<<17) 77 #define RECORD_START 0x83 78 #define RECORD_END 0x84 79 #define RECORD_CONTROL 0x85 80 #define DRAM_WRITE_CONTROL 0x8B 81 #define WRITE_TRANS_START (1<<16) 82 #define DRAM_MODE_2 (1<<17) 83 #define MISC_CONTROL 0x8C 84 #define IRQ_SET_BIT (1<<15) 85 #define VMUTE_NORMAL (1<<20) 86 #define MMUTE_NORMAL (1<<21) 87 #define MUS_VOC_VOL 0x8E 88 #define PLAYBACK_BLOCK_COUNTER 0x9A 89 #define RECORD_BLOCK_COUNTER 0x9B 90 91 #define DEBUG_CALLS 1 92 #define DEBUG_PLAY_REC 1 93 94 #if DEBUG_CALLS 95 #define snd_als300_dbgcalls(format, args...) printk(format, ##args) 96 #define snd_als300_dbgcallenter() printk(KERN_ERR "--> %s\n", __FUNCTION__) 97 #define snd_als300_dbgcallleave() printk(KERN_ERR "<-- %s\n", __FUNCTION__) 98 #else 99 #define snd_als300_dbgcalls(format, args...) 100 #define snd_als300_dbgcallenter() 101 #define snd_als300_dbgcallleave() 102 #endif 103 104 #if DEBUG_PLAY_REC 105 #define snd_als300_dbgplay(format, args...) printk(KERN_ERR format, ##args) 106 #else 107 #define snd_als300_dbgplay(format, args...) 108 #endif 109 110 enum {DEVICE_ALS300, DEVICE_ALS300_PLUS}; 111 112 MODULE_AUTHOR("Ash Willis <ashwillis@programmer.net>"); 113 MODULE_DESCRIPTION("Avance Logic ALS300"); 114 MODULE_LICENSE("GPL"); 115 MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS300},{Avance Logic,ALS300+}}"); 116 117 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 118 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 119 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 120 121 struct snd_als300 { 122 unsigned long port; 123 spinlock_t reg_lock; 124 struct snd_card *card; 125 struct pci_dev *pci; 126 127 struct snd_pcm *pcm; 128 struct snd_pcm_substream *playback_substream; 129 struct snd_pcm_substream *capture_substream; 130 131 struct snd_ac97 *ac97; 132 struct snd_opl3 *opl3; 133 134 struct resource *res_port; 135 136 int irq; 137 138 int chip_type; /* ALS300 or ALS300+ */ 139 140 char revision; 141 }; 142 143 struct snd_als300_substream_data { 144 int period_flipflop; 145 int control_register; 146 int block_counter_register; 147 }; 148 149 static struct pci_device_id snd_als300_ids[] = { 150 { 0x4005, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300 }, 151 { 0x4005, 0x0308, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300_PLUS }, 152 { 0, } 153 }; 154 155 MODULE_DEVICE_TABLE(pci, snd_als300_ids); 156 157 static inline u32 snd_als300_gcr_read(unsigned long port, unsigned short reg) 158 { 159 outb(reg, port+GCR_INDEX); 160 return inl(port+GCR_DATA); 161 } 162 163 static inline void snd_als300_gcr_write(unsigned long port, 164 unsigned short reg, u32 val) 165 { 166 outb(reg, port+GCR_INDEX); 167 outl(val, port+GCR_DATA); 168 } 169 170 /* Enable/Disable Interrupts */ 171 static void snd_als300_set_irq_flag(struct snd_als300 *chip, int cmd) 172 { 173 u32 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); 174 snd_als300_dbgcallenter(); 175 176 /* boolean XOR check, since old vs. new hardware have 177 directly reversed bit setting for ENABLE and DISABLE. 178 ALS300+ acts like newer versions of ALS300 */ 179 if (((chip->revision > 5 || chip->chip_type == DEVICE_ALS300_PLUS) ^ 180 (cmd == IRQ_ENABLE)) == 0) 181 tmp |= IRQ_SET_BIT; 182 else 183 tmp &= ~IRQ_SET_BIT; 184 snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp); 185 snd_als300_dbgcallleave(); 186 } 187 188 static int snd_als300_free(struct snd_als300 *chip) 189 { 190 snd_als300_dbgcallenter(); 191 snd_als300_set_irq_flag(chip, IRQ_DISABLE); 192 if (chip->irq >= 0) 193 free_irq(chip->irq, (void *)chip); 194 pci_release_regions(chip->pci); 195 pci_disable_device(chip->pci); 196 kfree(chip); 197 snd_als300_dbgcallleave(); 198 return 0; 199 } 200 201 static int snd_als300_dev_free(struct snd_device *device) 202 { 203 struct snd_als300 *chip = device->device_data; 204 return snd_als300_free(chip); 205 } 206 207 static irqreturn_t snd_als300_interrupt(int irq, void *dev_id) 208 { 209 u8 status; 210 struct snd_als300 *chip = dev_id; 211 struct snd_als300_substream_data *data; 212 213 status = inb(chip->port+ALS300_IRQ_STATUS); 214 if (!status) /* shared IRQ, for different device?? Exit ASAP! */ 215 return IRQ_NONE; 216 217 /* ACK everything ASAP */ 218 outb(status, chip->port+ALS300_IRQ_STATUS); 219 if (status & IRQ_PLAYBACK) { 220 if (chip->pcm && chip->playback_substream) { 221 data = chip->playback_substream->runtime->private_data; 222 data->period_flipflop ^= 1; 223 snd_pcm_period_elapsed(chip->playback_substream); 224 snd_als300_dbgplay("IRQ_PLAYBACK\n"); 225 } 226 } 227 if (status & IRQ_CAPTURE) { 228 if (chip->pcm && chip->capture_substream) { 229 data = chip->capture_substream->runtime->private_data; 230 data->period_flipflop ^= 1; 231 snd_pcm_period_elapsed(chip->capture_substream); 232 snd_als300_dbgplay("IRQ_CAPTURE\n"); 233 } 234 } 235 return IRQ_HANDLED; 236 } 237 238 static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id) 239 { 240 u8 general, mpu, dram; 241 struct snd_als300 *chip = dev_id; 242 struct snd_als300_substream_data *data; 243 244 general = inb(chip->port+ALS300P_IRQ_STATUS); 245 mpu = inb(chip->port+MPU_IRQ_STATUS); 246 dram = inb(chip->port+ALS300P_DRAM_IRQ_STATUS); 247 248 /* shared IRQ, for different device?? Exit ASAP! */ 249 if ((general == 0) && ((mpu & 0x80) == 0) && ((dram & 0x01) == 0)) 250 return IRQ_NONE; 251 252 if (general & IRQ_PLAYBACK) { 253 if (chip->pcm && chip->playback_substream) { 254 outb(IRQ_PLAYBACK, chip->port+ALS300P_IRQ_STATUS); 255 data = chip->playback_substream->runtime->private_data; 256 data->period_flipflop ^= 1; 257 snd_pcm_period_elapsed(chip->playback_substream); 258 snd_als300_dbgplay("IRQ_PLAYBACK\n"); 259 } 260 } 261 if (general & IRQ_CAPTURE) { 262 if (chip->pcm && chip->capture_substream) { 263 outb(IRQ_CAPTURE, chip->port+ALS300P_IRQ_STATUS); 264 data = chip->capture_substream->runtime->private_data; 265 data->period_flipflop ^= 1; 266 snd_pcm_period_elapsed(chip->capture_substream); 267 snd_als300_dbgplay("IRQ_CAPTURE\n"); 268 } 269 } 270 /* FIXME: Ack other interrupt types. Not important right now as 271 * those other devices aren't enabled. */ 272 return IRQ_HANDLED; 273 } 274 275 static void __devexit snd_als300_remove(struct pci_dev *pci) 276 { 277 snd_als300_dbgcallenter(); 278 snd_card_free(pci_get_drvdata(pci)); 279 pci_set_drvdata(pci, NULL); 280 snd_als300_dbgcallleave(); 281 } 282 283 static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97, 284 unsigned short reg) 285 { 286 int i; 287 struct snd_als300 *chip = ac97->private_data; 288 289 for (i = 0; i < 1000; i++) { 290 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) 291 break; 292 udelay(10); 293 } 294 outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS); 295 296 for (i = 0; i < 1000; i++) { 297 if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0) 298 break; 299 udelay(10); 300 } 301 return inw(chip->port+AC97_READ); 302 } 303 304 static void snd_als300_ac97_write(struct snd_ac97 *ac97, 305 unsigned short reg, unsigned short val) 306 { 307 int i; 308 struct snd_als300 *chip = ac97->private_data; 309 310 for (i = 0; i < 1000; i++) { 311 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) 312 break; 313 udelay(10); 314 } 315 outl((reg << 24) | val, chip->port+AC97_ACCESS); 316 } 317 318 static int snd_als300_ac97(struct snd_als300 *chip) 319 { 320 struct snd_ac97_bus *bus; 321 struct snd_ac97_template ac97; 322 int err; 323 static struct snd_ac97_bus_ops ops = { 324 .write = snd_als300_ac97_write, 325 .read = snd_als300_ac97_read, 326 }; 327 328 snd_als300_dbgcallenter(); 329 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus)) < 0) 330 return err; 331 332 memset(&ac97, 0, sizeof(ac97)); 333 ac97.private_data = chip; 334 335 snd_als300_dbgcallleave(); 336 return snd_ac97_mixer(bus, &ac97, &chip->ac97); 337 } 338 339 /* hardware definition 340 * 341 * In AC97 mode, we always use 48k/16bit/stereo. 342 * Any request to change data type is ignored by 343 * the card when it is running outside of legacy 344 * mode. 345 */ 346 static struct snd_pcm_hardware snd_als300_playback_hw = 347 { 348 .info = (SNDRV_PCM_INFO_MMAP | 349 SNDRV_PCM_INFO_INTERLEAVED | 350 SNDRV_PCM_INFO_PAUSE | 351 SNDRV_PCM_INFO_MMAP_VALID), 352 .formats = SNDRV_PCM_FMTBIT_S16, 353 .rates = SNDRV_PCM_RATE_48000, 354 .rate_min = 48000, 355 .rate_max = 48000, 356 .channels_min = 2, 357 .channels_max = 2, 358 .buffer_bytes_max = 64 * 1024, 359 .period_bytes_min = 64, 360 .period_bytes_max = 32 * 1024, 361 .periods_min = 2, 362 .periods_max = 2, 363 }; 364 365 static struct snd_pcm_hardware snd_als300_capture_hw = 366 { 367 .info = (SNDRV_PCM_INFO_MMAP | 368 SNDRV_PCM_INFO_INTERLEAVED | 369 SNDRV_PCM_INFO_PAUSE | 370 SNDRV_PCM_INFO_MMAP_VALID), 371 .formats = SNDRV_PCM_FMTBIT_S16, 372 .rates = SNDRV_PCM_RATE_48000, 373 .rate_min = 48000, 374 .rate_max = 48000, 375 .channels_min = 2, 376 .channels_max = 2, 377 .buffer_bytes_max = 64 * 1024, 378 .period_bytes_min = 64, 379 .period_bytes_max = 32 * 1024, 380 .periods_min = 2, 381 .periods_max = 2, 382 }; 383 384 static int snd_als300_playback_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 snd_als300_dbgcallenter(); 392 chip->playback_substream = substream; 393 runtime->hw = snd_als300_playback_hw; 394 runtime->private_data = data; 395 data->control_register = PLAYBACK_CONTROL; 396 data->block_counter_register = PLAYBACK_BLOCK_COUNTER; 397 snd_als300_dbgcallleave(); 398 return 0; 399 } 400 401 static int snd_als300_playback_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 snd_als300_dbgcallenter(); 408 kfree(data); 409 chip->playback_substream = NULL; 410 snd_pcm_lib_free_pages(substream); 411 snd_als300_dbgcallleave(); 412 return 0; 413 } 414 415 static int snd_als300_capture_open(struct snd_pcm_substream *substream) 416 { 417 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 418 struct snd_pcm_runtime *runtime = substream->runtime; 419 struct snd_als300_substream_data *data = kzalloc(sizeof(*data), 420 GFP_KERNEL); 421 422 snd_als300_dbgcallenter(); 423 chip->capture_substream = substream; 424 runtime->hw = snd_als300_capture_hw; 425 runtime->private_data = data; 426 data->control_register = RECORD_CONTROL; 427 data->block_counter_register = RECORD_BLOCK_COUNTER; 428 snd_als300_dbgcallleave(); 429 return 0; 430 } 431 432 static int snd_als300_capture_close(struct snd_pcm_substream *substream) 433 { 434 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 435 struct snd_als300_substream_data *data; 436 437 data = substream->runtime->private_data; 438 snd_als300_dbgcallenter(); 439 kfree(data); 440 chip->capture_substream = NULL; 441 snd_pcm_lib_free_pages(substream); 442 snd_als300_dbgcallleave(); 443 return 0; 444 } 445 446 static int snd_als300_pcm_hw_params(struct snd_pcm_substream *substream, 447 snd_pcm_hw_params_t * hw_params) 448 { 449 return snd_pcm_lib_malloc_pages(substream, 450 params_buffer_bytes(hw_params)); 451 } 452 453 static int snd_als300_pcm_hw_free(struct snd_pcm_substream *substream) 454 { 455 return snd_pcm_lib_free_pages(substream); 456 } 457 458 static int snd_als300_playback_prepare(struct snd_pcm_substream *substream) 459 { 460 u32 tmp; 461 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 462 struct snd_pcm_runtime *runtime = substream->runtime; 463 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 464 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 465 466 snd_als300_dbgcallenter(); 467 spin_lock_irq(&chip->reg_lock); 468 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 469 tmp &= ~TRANSFER_START; 470 471 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", 472 period_bytes, buffer_bytes); 473 474 /* set block size */ 475 tmp &= 0xffff0000; 476 tmp |= period_bytes - 1; 477 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp); 478 479 /* set dma area */ 480 snd_als300_gcr_write(chip->port, PLAYBACK_START, 481 runtime->dma_addr); 482 snd_als300_gcr_write(chip->port, PLAYBACK_END, 483 runtime->dma_addr + buffer_bytes - 1); 484 spin_unlock_irq(&chip->reg_lock); 485 snd_als300_dbgcallleave(); 486 return 0; 487 } 488 489 static int snd_als300_capture_prepare(struct snd_pcm_substream *substream) 490 { 491 u32 tmp; 492 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 493 struct snd_pcm_runtime *runtime = substream->runtime; 494 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 495 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 496 497 snd_als300_dbgcallenter(); 498 spin_lock_irq(&chip->reg_lock); 499 tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL); 500 tmp &= ~TRANSFER_START; 501 502 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes, 503 buffer_bytes); 504 505 /* set block size */ 506 tmp &= 0xffff0000; 507 tmp |= period_bytes - 1; 508 509 /* set dma area */ 510 snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp); 511 snd_als300_gcr_write(chip->port, RECORD_START, 512 runtime->dma_addr); 513 snd_als300_gcr_write(chip->port, RECORD_END, 514 runtime->dma_addr + buffer_bytes - 1); 515 spin_unlock_irq(&chip->reg_lock); 516 snd_als300_dbgcallleave(); 517 return 0; 518 } 519 520 static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd) 521 { 522 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 523 u32 tmp; 524 struct snd_als300_substream_data *data; 525 unsigned short reg; 526 int ret = 0; 527 528 data = substream->runtime->private_data; 529 reg = data->control_register; 530 531 snd_als300_dbgcallenter(); 532 spin_lock(&chip->reg_lock); 533 switch (cmd) { 534 case SNDRV_PCM_TRIGGER_START: 535 case SNDRV_PCM_TRIGGER_RESUME: 536 tmp = snd_als300_gcr_read(chip->port, reg); 537 data->period_flipflop = 1; 538 snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START); 539 snd_als300_dbgplay("TRIGGER START\n"); 540 break; 541 case SNDRV_PCM_TRIGGER_STOP: 542 case SNDRV_PCM_TRIGGER_SUSPEND: 543 tmp = snd_als300_gcr_read(chip->port, reg); 544 snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START); 545 snd_als300_dbgplay("TRIGGER STOP\n"); 546 break; 547 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 548 tmp = snd_als300_gcr_read(chip->port, reg); 549 snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE); 550 snd_als300_dbgplay("TRIGGER PAUSE\n"); 551 break; 552 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 553 tmp = snd_als300_gcr_read(chip->port, reg); 554 snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE); 555 snd_als300_dbgplay("TRIGGER RELEASE\n"); 556 break; 557 default: 558 snd_als300_dbgplay("TRIGGER INVALID\n"); 559 ret = -EINVAL; 560 } 561 spin_unlock(&chip->reg_lock); 562 snd_als300_dbgcallleave(); 563 return ret; 564 } 565 566 static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream) 567 { 568 u16 current_ptr; 569 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 570 struct snd_als300_substream_data *data; 571 unsigned short period_bytes; 572 573 data = substream->runtime->private_data; 574 period_bytes = snd_pcm_lib_period_bytes(substream); 575 576 snd_als300_dbgcallenter(); 577 spin_lock(&chip->reg_lock); 578 current_ptr = (u16) snd_als300_gcr_read(chip->port, 579 data->block_counter_register) + 4; 580 spin_unlock(&chip->reg_lock); 581 if (current_ptr > period_bytes) 582 current_ptr = 0; 583 else 584 current_ptr = period_bytes - current_ptr; 585 586 if (data->period_flipflop == 0) 587 current_ptr += period_bytes; 588 snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr); 589 snd_als300_dbgcallleave(); 590 return bytes_to_frames(substream->runtime, current_ptr); 591 } 592 593 static struct snd_pcm_ops snd_als300_playback_ops = { 594 .open = snd_als300_playback_open, 595 .close = snd_als300_playback_close, 596 .ioctl = snd_pcm_lib_ioctl, 597 .hw_params = snd_als300_pcm_hw_params, 598 .hw_free = snd_als300_pcm_hw_free, 599 .prepare = snd_als300_playback_prepare, 600 .trigger = snd_als300_trigger, 601 .pointer = snd_als300_pointer, 602 }; 603 604 static struct snd_pcm_ops snd_als300_capture_ops = { 605 .open = snd_als300_capture_open, 606 .close = snd_als300_capture_close, 607 .ioctl = snd_pcm_lib_ioctl, 608 .hw_params = snd_als300_pcm_hw_params, 609 .hw_free = snd_als300_pcm_hw_free, 610 .prepare = snd_als300_capture_prepare, 611 .trigger = snd_als300_trigger, 612 .pointer = snd_als300_pointer, 613 }; 614 615 static int __devinit snd_als300_new_pcm(struct snd_als300 *chip) 616 { 617 struct snd_pcm *pcm; 618 int err; 619 620 snd_als300_dbgcallenter(); 621 err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm); 622 if (err < 0) 623 return err; 624 pcm->private_data = chip; 625 strcpy(pcm->name, "ALS300"); 626 chip->pcm = pcm; 627 628 /* set operators */ 629 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 630 &snd_als300_playback_ops); 631 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 632 &snd_als300_capture_ops); 633 634 /* pre-allocation of buffers */ 635 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 636 snd_dma_pci_data(chip->pci), 64*1024, 64*1024); 637 snd_als300_dbgcallleave(); 638 return 0; 639 } 640 641 static void snd_als300_init(struct snd_als300 *chip) 642 { 643 unsigned long flags; 644 u32 tmp; 645 646 snd_als300_dbgcallenter(); 647 spin_lock_irqsave(&chip->reg_lock, flags); 648 chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16) 649 & 0x0000000F; 650 /* Setup DRAM */ 651 tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL); 652 snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL, 653 (tmp | DRAM_MODE_2) 654 & ~WRITE_TRANS_START); 655 656 /* Enable IRQ output */ 657 snd_als300_set_irq_flag(chip, IRQ_ENABLE); 658 659 /* Unmute hardware devices so their outputs get routed to 660 * the onboard mixer */ 661 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); 662 snd_als300_gcr_write(chip->port, MISC_CONTROL, 663 tmp | VMUTE_NORMAL | MMUTE_NORMAL); 664 665 /* Reset volumes */ 666 snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0); 667 668 /* Make sure playback transfer is stopped */ 669 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 670 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, 671 tmp & ~TRANSFER_START); 672 spin_unlock_irqrestore(&chip->reg_lock, flags); 673 snd_als300_dbgcallleave(); 674 } 675 676 static int __devinit snd_als300_create(snd_card_t *card, 677 struct pci_dev *pci, int chip_type, 678 struct snd_als300 **rchip) 679 { 680 struct snd_als300 *chip; 681 void *irq_handler; 682 int err; 683 684 static snd_device_ops_t ops = { 685 .dev_free = snd_als300_dev_free, 686 }; 687 *rchip = NULL; 688 689 snd_als300_dbgcallenter(); 690 if ((err = pci_enable_device(pci)) < 0) 691 return err; 692 693 if (pci_set_dma_mask(pci, DMA_28BIT_MASK) < 0 || 694 pci_set_consistent_dma_mask(pci, DMA_28BIT_MASK) < 0) { 695 printk(KERN_ERR "error setting 28bit DMA mask\n"); 696 pci_disable_device(pci); 697 return -ENXIO; 698 } 699 pci_set_master(pci); 700 701 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 702 if (chip == NULL) { 703 pci_disable_device(pci); 704 return -ENOMEM; 705 } 706 707 chip->card = card; 708 chip->pci = pci; 709 chip->irq = -1; 710 chip->chip_type = chip_type; 711 spin_lock_init(&chip->reg_lock); 712 713 if ((err = pci_request_regions(pci, "ALS300")) < 0) { 714 kfree(chip); 715 pci_disable_device(pci); 716 return err; 717 } 718 chip->port = pci_resource_start(pci, 0); 719 720 if (chip->chip_type == DEVICE_ALS300_PLUS) 721 irq_handler = snd_als300plus_interrupt; 722 else 723 irq_handler = snd_als300_interrupt; 724 725 if (request_irq(pci->irq, irq_handler, IRQF_DISABLED|IRQF_SHARED, 726 card->shortname, (void *)chip)) { 727 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq); 728 snd_als300_free(chip); 729 return -EBUSY; 730 } 731 chip->irq = pci->irq; 732 733 734 snd_als300_init(chip); 735 736 if (snd_als300_ac97(chip) < 0) { 737 snd_printk(KERN_WARNING "Could not create ac97\n"); 738 snd_als300_free(chip); 739 return err; 740 } 741 742 if ((err = snd_als300_new_pcm(chip)) < 0) { 743 snd_printk(KERN_WARNING "Could not create PCM\n"); 744 snd_als300_free(chip); 745 return err; 746 } 747 748 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, 749 chip, &ops)) < 0) { 750 snd_als300_free(chip); 751 return err; 752 } 753 754 snd_card_set_dev(card, &pci->dev); 755 756 *rchip = chip; 757 snd_als300_dbgcallleave(); 758 return 0; 759 } 760 761 #ifdef CONFIG_PM 762 static int snd_als300_suspend(struct pci_dev *pci, pm_message_t state) 763 { 764 struct snd_card *card = pci_get_drvdata(pci); 765 struct snd_als300 *chip = card->private_data; 766 767 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 768 snd_pcm_suspend_all(chip->pcm); 769 snd_ac97_suspend(chip->ac97); 770 771 pci_disable_device(pci); 772 pci_save_state(pci); 773 pci_set_power_state(pci, pci_choose_state(pci, state)); 774 return 0; 775 } 776 777 static int snd_als300_resume(struct pci_dev *pci) 778 { 779 struct snd_card *card = pci_get_drvdata(pci); 780 struct snd_als300 *chip = card->private_data; 781 782 pci_set_power_state(pci, PCI_D0); 783 pci_restore_state(pci); 784 if (pci_enable_device(pci) < 0) { 785 printk(KERN_ERR "als300: pci_enable_device failed, " 786 "disabling device\n"); 787 snd_card_disconnect(card); 788 return -EIO; 789 } 790 pci_set_master(pci); 791 792 snd_als300_init(chip); 793 snd_ac97_resume(chip->ac97); 794 795 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 796 return 0; 797 } 798 #endif 799 800 static int __devinit snd_als300_probe(struct pci_dev *pci, 801 const struct pci_device_id *pci_id) 802 { 803 static int dev; 804 struct snd_card *card; 805 struct snd_als300 *chip; 806 int err, chip_type; 807 808 if (dev >= SNDRV_CARDS) 809 return -ENODEV; 810 if (!enable[dev]) { 811 dev++; 812 return -ENOENT; 813 } 814 815 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); 816 817 if (card == NULL) 818 return -ENOMEM; 819 820 chip_type = pci_id->driver_data; 821 822 if ((err = snd_als300_create(card, pci, chip_type, &chip)) < 0) { 823 snd_card_free(card); 824 return err; 825 } 826 card->private_data = chip; 827 828 strcpy(card->driver, "ALS300"); 829 if (chip->chip_type == DEVICE_ALS300_PLUS) 830 /* don't know much about ALS300+ yet 831 * print revision number for now */ 832 sprintf(card->shortname, "ALS300+ (Rev. %d)", chip->revision); 833 else 834 sprintf(card->shortname, "ALS300 (Rev. %c)", 'A' + 835 chip->revision - 1); 836 sprintf(card->longname, "%s at 0x%lx irq %i", 837 card->shortname, chip->port, chip->irq); 838 839 if ((err = snd_card_register(card)) < 0) { 840 snd_card_free(card); 841 return err; 842 } 843 pci_set_drvdata(pci, card); 844 dev++; 845 return 0; 846 } 847 848 static struct pci_driver driver = { 849 .name = "ALS300", 850 .id_table = snd_als300_ids, 851 .probe = snd_als300_probe, 852 .remove = __devexit_p(snd_als300_remove), 853 #ifdef CONFIG_PM 854 .suspend = snd_als300_suspend, 855 .resume = snd_als300_resume, 856 #endif 857 }; 858 859 static int __init alsa_card_als300_init(void) 860 { 861 return pci_register_driver(&driver); 862 } 863 864 static void __exit alsa_card_als300_exit(void) 865 { 866 pci_unregister_driver(&driver); 867 } 868 869 module_init(alsa_card_als300_init) 870 module_exit(alsa_card_als300_exit) 871