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/moduleparam.h> 36 #include <linux/pci.h> 37 #include <linux/dma-mapping.h> 38 #include <linux/interrupt.h> 39 #include <linux/slab.h> 40 41 #include <asm/io.h> 42 43 #include <sound/core.h> 44 #include <sound/control.h> 45 #include <sound/initval.h> 46 #include <sound/pcm.h> 47 #include <sound/pcm_params.h> 48 #include <sound/ac97_codec.h> 49 #include <sound/opl3.h> 50 51 /* snd_als300_set_irq_flag */ 52 #define IRQ_DISABLE 0 53 #define IRQ_ENABLE 1 54 55 /* I/O port layout */ 56 #define AC97_ACCESS 0x00 57 #define AC97_READ 0x04 58 #define AC97_STATUS 0x06 59 #define AC97_DATA_AVAIL (1<<6) 60 #define AC97_BUSY (1<<7) 61 #define ALS300_IRQ_STATUS 0x07 /* ALS300 Only */ 62 #define IRQ_PLAYBACK (1<<3) 63 #define IRQ_CAPTURE (1<<2) 64 #define GCR_DATA 0x08 65 #define GCR_INDEX 0x0C 66 #define ALS300P_DRAM_IRQ_STATUS 0x0D /* ALS300+ Only */ 67 #define MPU_IRQ_STATUS 0x0E /* ALS300 Rev. E+, ALS300+ */ 68 #define ALS300P_IRQ_STATUS 0x0F /* ALS300+ Only */ 69 70 /* General Control Registers */ 71 #define PLAYBACK_START 0x80 72 #define PLAYBACK_END 0x81 73 #define PLAYBACK_CONTROL 0x82 74 #define TRANSFER_START (1<<16) 75 #define FIFO_PAUSE (1<<17) 76 #define RECORD_START 0x83 77 #define RECORD_END 0x84 78 #define RECORD_CONTROL 0x85 79 #define DRAM_WRITE_CONTROL 0x8B 80 #define WRITE_TRANS_START (1<<16) 81 #define DRAM_MODE_2 (1<<17) 82 #define MISC_CONTROL 0x8C 83 #define IRQ_SET_BIT (1<<15) 84 #define VMUTE_NORMAL (1<<20) 85 #define MMUTE_NORMAL (1<<21) 86 #define MUS_VOC_VOL 0x8E 87 #define PLAYBACK_BLOCK_COUNTER 0x9A 88 #define RECORD_BLOCK_COUNTER 0x9B 89 90 #define DEBUG_CALLS 0 91 #define DEBUG_PLAY_REC 0 92 93 #if DEBUG_CALLS 94 #define snd_als300_dbgcalls(format, args...) printk(format, ##args) 95 #define snd_als300_dbgcallenter() printk(KERN_ERR "--> %s\n", __FUNCTION__) 96 #define snd_als300_dbgcallleave() printk(KERN_ERR "<-- %s\n", __FUNCTION__) 97 #else 98 #define snd_als300_dbgcalls(format, args...) 99 #define snd_als300_dbgcallenter() 100 #define snd_als300_dbgcallleave() 101 #endif 102 103 #if DEBUG_PLAY_REC 104 #define snd_als300_dbgplay(format, args...) printk(KERN_ERR format, ##args) 105 #else 106 #define snd_als300_dbgplay(format, args...) 107 #endif 108 109 enum {DEVICE_ALS300, DEVICE_ALS300_PLUS}; 110 111 MODULE_AUTHOR("Ash Willis <ashwillis@programmer.net>"); 112 MODULE_DESCRIPTION("Avance Logic ALS300"); 113 MODULE_LICENSE("GPL"); 114 MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS300},{Avance Logic,ALS300+}}"); 115 116 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 117 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 118 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 119 120 struct snd_als300 { 121 unsigned long port; 122 spinlock_t reg_lock; 123 struct snd_card *card; 124 struct pci_dev *pci; 125 126 struct snd_pcm *pcm; 127 struct snd_pcm_substream *playback_substream; 128 struct snd_pcm_substream *capture_substream; 129 130 struct snd_ac97 *ac97; 131 struct snd_opl3 *opl3; 132 133 struct resource *res_port; 134 135 int irq; 136 137 int chip_type; /* ALS300 or ALS300+ */ 138 139 char revision; 140 }; 141 142 struct snd_als300_substream_data { 143 int period_flipflop; 144 int control_register; 145 int block_counter_register; 146 }; 147 148 static struct pci_device_id snd_als300_ids[] = { 149 { 0x4005, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300 }, 150 { 0x4005, 0x0308, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300_PLUS }, 151 { 0, } 152 }; 153 154 MODULE_DEVICE_TABLE(pci, snd_als300_ids); 155 156 static inline u32 snd_als300_gcr_read(unsigned long port, unsigned short reg) 157 { 158 outb(reg, port+GCR_INDEX); 159 return inl(port+GCR_DATA); 160 } 161 162 static inline void snd_als300_gcr_write(unsigned long port, 163 unsigned short reg, u32 val) 164 { 165 outb(reg, port+GCR_INDEX); 166 outl(val, port+GCR_DATA); 167 } 168 169 /* Enable/Disable Interrupts */ 170 static void snd_als300_set_irq_flag(struct snd_als300 *chip, int cmd) 171 { 172 u32 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); 173 snd_als300_dbgcallenter(); 174 175 /* boolean XOR check, since old vs. new hardware have 176 directly reversed bit setting for ENABLE and DISABLE. 177 ALS300+ acts like newer versions of ALS300 */ 178 if (((chip->revision > 5 || chip->chip_type == DEVICE_ALS300_PLUS) ^ 179 (cmd == IRQ_ENABLE)) == 0) 180 tmp |= IRQ_SET_BIT; 181 else 182 tmp &= ~IRQ_SET_BIT; 183 snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp); 184 snd_als300_dbgcallleave(); 185 } 186 187 static int snd_als300_free(struct snd_als300 *chip) 188 { 189 snd_als300_dbgcallenter(); 190 snd_als300_set_irq_flag(chip, IRQ_DISABLE); 191 if (chip->irq >= 0) 192 free_irq(chip->irq, chip); 193 pci_release_regions(chip->pci); 194 pci_disable_device(chip->pci); 195 kfree(chip); 196 snd_als300_dbgcallleave(); 197 return 0; 198 } 199 200 static int snd_als300_dev_free(struct snd_device *device) 201 { 202 struct snd_als300 *chip = device->device_data; 203 return snd_als300_free(chip); 204 } 205 206 static irqreturn_t snd_als300_interrupt(int irq, void *dev_id) 207 { 208 u8 status; 209 struct snd_als300 *chip = dev_id; 210 struct snd_als300_substream_data *data; 211 212 status = inb(chip->port+ALS300_IRQ_STATUS); 213 if (!status) /* shared IRQ, for different device?? Exit ASAP! */ 214 return IRQ_NONE; 215 216 /* ACK everything ASAP */ 217 outb(status, chip->port+ALS300_IRQ_STATUS); 218 if (status & IRQ_PLAYBACK) { 219 if (chip->pcm && chip->playback_substream) { 220 data = chip->playback_substream->runtime->private_data; 221 data->period_flipflop ^= 1; 222 snd_pcm_period_elapsed(chip->playback_substream); 223 snd_als300_dbgplay("IRQ_PLAYBACK\n"); 224 } 225 } 226 if (status & IRQ_CAPTURE) { 227 if (chip->pcm && chip->capture_substream) { 228 data = chip->capture_substream->runtime->private_data; 229 data->period_flipflop ^= 1; 230 snd_pcm_period_elapsed(chip->capture_substream); 231 snd_als300_dbgplay("IRQ_CAPTURE\n"); 232 } 233 } 234 return IRQ_HANDLED; 235 } 236 237 static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id) 238 { 239 u8 general, mpu, dram; 240 struct snd_als300 *chip = dev_id; 241 struct snd_als300_substream_data *data; 242 243 general = inb(chip->port+ALS300P_IRQ_STATUS); 244 mpu = inb(chip->port+MPU_IRQ_STATUS); 245 dram = inb(chip->port+ALS300P_DRAM_IRQ_STATUS); 246 247 /* shared IRQ, for different device?? Exit ASAP! */ 248 if ((general == 0) && ((mpu & 0x80) == 0) && ((dram & 0x01) == 0)) 249 return IRQ_NONE; 250 251 if (general & IRQ_PLAYBACK) { 252 if (chip->pcm && chip->playback_substream) { 253 outb(IRQ_PLAYBACK, chip->port+ALS300P_IRQ_STATUS); 254 data = chip->playback_substream->runtime->private_data; 255 data->period_flipflop ^= 1; 256 snd_pcm_period_elapsed(chip->playback_substream); 257 snd_als300_dbgplay("IRQ_PLAYBACK\n"); 258 } 259 } 260 if (general & IRQ_CAPTURE) { 261 if (chip->pcm && chip->capture_substream) { 262 outb(IRQ_CAPTURE, chip->port+ALS300P_IRQ_STATUS); 263 data = chip->capture_substream->runtime->private_data; 264 data->period_flipflop ^= 1; 265 snd_pcm_period_elapsed(chip->capture_substream); 266 snd_als300_dbgplay("IRQ_CAPTURE\n"); 267 } 268 } 269 /* FIXME: Ack other interrupt types. Not important right now as 270 * those other devices aren't enabled. */ 271 return IRQ_HANDLED; 272 } 273 274 static void __devexit snd_als300_remove(struct pci_dev *pci) 275 { 276 snd_als300_dbgcallenter(); 277 snd_card_free(pci_get_drvdata(pci)); 278 pci_set_drvdata(pci, NULL); 279 snd_als300_dbgcallleave(); 280 } 281 282 static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97, 283 unsigned short reg) 284 { 285 int i; 286 struct snd_als300 *chip = ac97->private_data; 287 288 for (i = 0; i < 1000; i++) { 289 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) 290 break; 291 udelay(10); 292 } 293 outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS); 294 295 for (i = 0; i < 1000; i++) { 296 if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0) 297 break; 298 udelay(10); 299 } 300 return inw(chip->port+AC97_READ); 301 } 302 303 static void snd_als300_ac97_write(struct snd_ac97 *ac97, 304 unsigned short reg, unsigned short val) 305 { 306 int i; 307 struct snd_als300 *chip = ac97->private_data; 308 309 for (i = 0; i < 1000; i++) { 310 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) 311 break; 312 udelay(10); 313 } 314 outl((reg << 24) | val, chip->port+AC97_ACCESS); 315 } 316 317 static int snd_als300_ac97(struct snd_als300 *chip) 318 { 319 struct snd_ac97_bus *bus; 320 struct snd_ac97_template ac97; 321 int err; 322 static struct snd_ac97_bus_ops ops = { 323 .write = snd_als300_ac97_write, 324 .read = snd_als300_ac97_read, 325 }; 326 327 snd_als300_dbgcallenter(); 328 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus)) < 0) 329 return err; 330 331 memset(&ac97, 0, sizeof(ac97)); 332 ac97.private_data = chip; 333 334 snd_als300_dbgcallleave(); 335 return snd_ac97_mixer(bus, &ac97, &chip->ac97); 336 } 337 338 /* hardware definition 339 * 340 * In AC97 mode, we always use 48k/16bit/stereo. 341 * Any request to change data type is ignored by 342 * the card when it is running outside of legacy 343 * mode. 344 */ 345 static struct snd_pcm_hardware snd_als300_playback_hw = 346 { 347 .info = (SNDRV_PCM_INFO_MMAP | 348 SNDRV_PCM_INFO_INTERLEAVED | 349 SNDRV_PCM_INFO_PAUSE | 350 SNDRV_PCM_INFO_MMAP_VALID), 351 .formats = SNDRV_PCM_FMTBIT_S16, 352 .rates = SNDRV_PCM_RATE_48000, 353 .rate_min = 48000, 354 .rate_max = 48000, 355 .channels_min = 2, 356 .channels_max = 2, 357 .buffer_bytes_max = 64 * 1024, 358 .period_bytes_min = 64, 359 .period_bytes_max = 32 * 1024, 360 .periods_min = 2, 361 .periods_max = 2, 362 }; 363 364 static struct snd_pcm_hardware snd_als300_capture_hw = 365 { 366 .info = (SNDRV_PCM_INFO_MMAP | 367 SNDRV_PCM_INFO_INTERLEAVED | 368 SNDRV_PCM_INFO_PAUSE | 369 SNDRV_PCM_INFO_MMAP_VALID), 370 .formats = SNDRV_PCM_FMTBIT_S16, 371 .rates = SNDRV_PCM_RATE_48000, 372 .rate_min = 48000, 373 .rate_max = 48000, 374 .channels_min = 2, 375 .channels_max = 2, 376 .buffer_bytes_max = 64 * 1024, 377 .period_bytes_min = 64, 378 .period_bytes_max = 32 * 1024, 379 .periods_min = 2, 380 .periods_max = 2, 381 }; 382 383 static int snd_als300_playback_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 snd_als300_dbgcallenter(); 391 chip->playback_substream = substream; 392 runtime->hw = snd_als300_playback_hw; 393 runtime->private_data = data; 394 data->control_register = PLAYBACK_CONTROL; 395 data->block_counter_register = PLAYBACK_BLOCK_COUNTER; 396 snd_als300_dbgcallleave(); 397 return 0; 398 } 399 400 static int snd_als300_playback_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 snd_als300_dbgcallenter(); 407 kfree(data); 408 chip->playback_substream = NULL; 409 snd_pcm_lib_free_pages(substream); 410 snd_als300_dbgcallleave(); 411 return 0; 412 } 413 414 static int snd_als300_capture_open(struct snd_pcm_substream *substream) 415 { 416 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 417 struct snd_pcm_runtime *runtime = substream->runtime; 418 struct snd_als300_substream_data *data = kzalloc(sizeof(*data), 419 GFP_KERNEL); 420 421 snd_als300_dbgcallenter(); 422 chip->capture_substream = substream; 423 runtime->hw = snd_als300_capture_hw; 424 runtime->private_data = data; 425 data->control_register = RECORD_CONTROL; 426 data->block_counter_register = RECORD_BLOCK_COUNTER; 427 snd_als300_dbgcallleave(); 428 return 0; 429 } 430 431 static int snd_als300_capture_close(struct snd_pcm_substream *substream) 432 { 433 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 434 struct snd_als300_substream_data *data; 435 436 data = substream->runtime->private_data; 437 snd_als300_dbgcallenter(); 438 kfree(data); 439 chip->capture_substream = NULL; 440 snd_pcm_lib_free_pages(substream); 441 snd_als300_dbgcallleave(); 442 return 0; 443 } 444 445 static int snd_als300_pcm_hw_params(struct snd_pcm_substream *substream, 446 struct snd_pcm_hw_params *hw_params) 447 { 448 return snd_pcm_lib_malloc_pages(substream, 449 params_buffer_bytes(hw_params)); 450 } 451 452 static int snd_als300_pcm_hw_free(struct snd_pcm_substream *substream) 453 { 454 return snd_pcm_lib_free_pages(substream); 455 } 456 457 static int snd_als300_playback_prepare(struct snd_pcm_substream *substream) 458 { 459 u32 tmp; 460 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 461 struct snd_pcm_runtime *runtime = substream->runtime; 462 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 463 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 464 465 snd_als300_dbgcallenter(); 466 spin_lock_irq(&chip->reg_lock); 467 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 468 tmp &= ~TRANSFER_START; 469 470 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", 471 period_bytes, buffer_bytes); 472 473 /* set block size */ 474 tmp &= 0xffff0000; 475 tmp |= period_bytes - 1; 476 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp); 477 478 /* set dma area */ 479 snd_als300_gcr_write(chip->port, PLAYBACK_START, 480 runtime->dma_addr); 481 snd_als300_gcr_write(chip->port, PLAYBACK_END, 482 runtime->dma_addr + buffer_bytes - 1); 483 spin_unlock_irq(&chip->reg_lock); 484 snd_als300_dbgcallleave(); 485 return 0; 486 } 487 488 static int snd_als300_capture_prepare(struct snd_pcm_substream *substream) 489 { 490 u32 tmp; 491 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 492 struct snd_pcm_runtime *runtime = substream->runtime; 493 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 494 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 495 496 snd_als300_dbgcallenter(); 497 spin_lock_irq(&chip->reg_lock); 498 tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL); 499 tmp &= ~TRANSFER_START; 500 501 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes, 502 buffer_bytes); 503 504 /* set block size */ 505 tmp &= 0xffff0000; 506 tmp |= period_bytes - 1; 507 508 /* set dma area */ 509 snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp); 510 snd_als300_gcr_write(chip->port, RECORD_START, 511 runtime->dma_addr); 512 snd_als300_gcr_write(chip->port, RECORD_END, 513 runtime->dma_addr + buffer_bytes - 1); 514 spin_unlock_irq(&chip->reg_lock); 515 snd_als300_dbgcallleave(); 516 return 0; 517 } 518 519 static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd) 520 { 521 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 522 u32 tmp; 523 struct snd_als300_substream_data *data; 524 unsigned short reg; 525 int ret = 0; 526 527 data = substream->runtime->private_data; 528 reg = data->control_register; 529 530 snd_als300_dbgcallenter(); 531 spin_lock(&chip->reg_lock); 532 switch (cmd) { 533 case SNDRV_PCM_TRIGGER_START: 534 case SNDRV_PCM_TRIGGER_RESUME: 535 tmp = snd_als300_gcr_read(chip->port, reg); 536 data->period_flipflop = 1; 537 snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START); 538 snd_als300_dbgplay("TRIGGER START\n"); 539 break; 540 case SNDRV_PCM_TRIGGER_STOP: 541 case SNDRV_PCM_TRIGGER_SUSPEND: 542 tmp = snd_als300_gcr_read(chip->port, reg); 543 snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START); 544 snd_als300_dbgplay("TRIGGER STOP\n"); 545 break; 546 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 547 tmp = snd_als300_gcr_read(chip->port, reg); 548 snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE); 549 snd_als300_dbgplay("TRIGGER PAUSE\n"); 550 break; 551 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 552 tmp = snd_als300_gcr_read(chip->port, reg); 553 snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE); 554 snd_als300_dbgplay("TRIGGER RELEASE\n"); 555 break; 556 default: 557 snd_als300_dbgplay("TRIGGER INVALID\n"); 558 ret = -EINVAL; 559 } 560 spin_unlock(&chip->reg_lock); 561 snd_als300_dbgcallleave(); 562 return ret; 563 } 564 565 static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream) 566 { 567 u16 current_ptr; 568 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 569 struct snd_als300_substream_data *data; 570 unsigned short period_bytes; 571 572 data = substream->runtime->private_data; 573 period_bytes = snd_pcm_lib_period_bytes(substream); 574 575 snd_als300_dbgcallenter(); 576 spin_lock(&chip->reg_lock); 577 current_ptr = (u16) snd_als300_gcr_read(chip->port, 578 data->block_counter_register) + 4; 579 spin_unlock(&chip->reg_lock); 580 if (current_ptr > period_bytes) 581 current_ptr = 0; 582 else 583 current_ptr = period_bytes - current_ptr; 584 585 if (data->period_flipflop == 0) 586 current_ptr += period_bytes; 587 snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr); 588 snd_als300_dbgcallleave(); 589 return bytes_to_frames(substream->runtime, current_ptr); 590 } 591 592 static struct snd_pcm_ops snd_als300_playback_ops = { 593 .open = snd_als300_playback_open, 594 .close = snd_als300_playback_close, 595 .ioctl = snd_pcm_lib_ioctl, 596 .hw_params = snd_als300_pcm_hw_params, 597 .hw_free = snd_als300_pcm_hw_free, 598 .prepare = snd_als300_playback_prepare, 599 .trigger = snd_als300_trigger, 600 .pointer = snd_als300_pointer, 601 }; 602 603 static struct snd_pcm_ops snd_als300_capture_ops = { 604 .open = snd_als300_capture_open, 605 .close = snd_als300_capture_close, 606 .ioctl = snd_pcm_lib_ioctl, 607 .hw_params = snd_als300_pcm_hw_params, 608 .hw_free = snd_als300_pcm_hw_free, 609 .prepare = snd_als300_capture_prepare, 610 .trigger = snd_als300_trigger, 611 .pointer = snd_als300_pointer, 612 }; 613 614 static int __devinit snd_als300_new_pcm(struct snd_als300 *chip) 615 { 616 struct snd_pcm *pcm; 617 int err; 618 619 snd_als300_dbgcallenter(); 620 err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm); 621 if (err < 0) 622 return err; 623 pcm->private_data = chip; 624 strcpy(pcm->name, "ALS300"); 625 chip->pcm = pcm; 626 627 /* set operators */ 628 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 629 &snd_als300_playback_ops); 630 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 631 &snd_als300_capture_ops); 632 633 /* pre-allocation of buffers */ 634 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 635 snd_dma_pci_data(chip->pci), 64*1024, 64*1024); 636 snd_als300_dbgcallleave(); 637 return 0; 638 } 639 640 static void snd_als300_init(struct snd_als300 *chip) 641 { 642 unsigned long flags; 643 u32 tmp; 644 645 snd_als300_dbgcallenter(); 646 spin_lock_irqsave(&chip->reg_lock, flags); 647 chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16) 648 & 0x0000000F; 649 /* Setup DRAM */ 650 tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL); 651 snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL, 652 (tmp | DRAM_MODE_2) 653 & ~WRITE_TRANS_START); 654 655 /* Enable IRQ output */ 656 snd_als300_set_irq_flag(chip, IRQ_ENABLE); 657 658 /* Unmute hardware devices so their outputs get routed to 659 * the onboard mixer */ 660 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); 661 snd_als300_gcr_write(chip->port, MISC_CONTROL, 662 tmp | VMUTE_NORMAL | MMUTE_NORMAL); 663 664 /* Reset volumes */ 665 snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0); 666 667 /* Make sure playback transfer is stopped */ 668 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 669 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, 670 tmp & ~TRANSFER_START); 671 spin_unlock_irqrestore(&chip->reg_lock, flags); 672 snd_als300_dbgcallleave(); 673 } 674 675 static int __devinit snd_als300_create(struct snd_card *card, 676 struct pci_dev *pci, int chip_type, 677 struct snd_als300 **rchip) 678 { 679 struct snd_als300 *chip; 680 void *irq_handler; 681 int err; 682 683 static struct snd_device_ops ops = { 684 .dev_free = snd_als300_dev_free, 685 }; 686 *rchip = NULL; 687 688 snd_als300_dbgcallenter(); 689 if ((err = pci_enable_device(pci)) < 0) 690 return err; 691 692 if (pci_set_dma_mask(pci, DMA_28BIT_MASK) < 0 || 693 pci_set_consistent_dma_mask(pci, DMA_28BIT_MASK) < 0) { 694 printk(KERN_ERR "error setting 28bit DMA mask\n"); 695 pci_disable_device(pci); 696 return -ENXIO; 697 } 698 pci_set_master(pci); 699 700 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 701 if (chip == NULL) { 702 pci_disable_device(pci); 703 return -ENOMEM; 704 } 705 706 chip->card = card; 707 chip->pci = pci; 708 chip->irq = -1; 709 chip->chip_type = chip_type; 710 spin_lock_init(&chip->reg_lock); 711 712 if ((err = pci_request_regions(pci, "ALS300")) < 0) { 713 kfree(chip); 714 pci_disable_device(pci); 715 return err; 716 } 717 chip->port = pci_resource_start(pci, 0); 718 719 if (chip->chip_type == DEVICE_ALS300_PLUS) 720 irq_handler = snd_als300plus_interrupt; 721 else 722 irq_handler = snd_als300_interrupt; 723 724 if (request_irq(pci->irq, irq_handler, IRQF_SHARED, 725 card->shortname, chip)) { 726 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq); 727 snd_als300_free(chip); 728 return -EBUSY; 729 } 730 chip->irq = pci->irq; 731 732 733 snd_als300_init(chip); 734 735 err = snd_als300_ac97(chip); 736 if (err < 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