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 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(KERN_DEBUG format, ##args) 95 #define snd_als300_dbgcallenter() printk(KERN_ERR "--> %s\n", __func__) 96 #define snd_als300_dbgcallleave() printk(KERN_ERR "<-- %s\n", __func__) 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 bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 119 120 module_param_array(index, int, NULL, 0444); 121 MODULE_PARM_DESC(index, "Index value for ALS300 sound card."); 122 module_param_array(id, charp, NULL, 0444); 123 MODULE_PARM_DESC(id, "ID string for ALS300 sound card."); 124 module_param_array(enable, bool, NULL, 0444); 125 MODULE_PARM_DESC(enable, "Enable ALS300 sound card."); 126 127 struct snd_als300 { 128 unsigned long port; 129 spinlock_t reg_lock; 130 struct snd_card *card; 131 struct pci_dev *pci; 132 133 struct snd_pcm *pcm; 134 struct snd_pcm_substream *playback_substream; 135 struct snd_pcm_substream *capture_substream; 136 137 struct snd_ac97 *ac97; 138 struct snd_opl3 *opl3; 139 140 struct resource *res_port; 141 142 int irq; 143 144 int chip_type; /* ALS300 or ALS300+ */ 145 146 char revision; 147 }; 148 149 struct snd_als300_substream_data { 150 int period_flipflop; 151 int control_register; 152 int block_counter_register; 153 }; 154 155 static DEFINE_PCI_DEVICE_TABLE(snd_als300_ids) = { 156 { 0x4005, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300 }, 157 { 0x4005, 0x0308, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300_PLUS }, 158 { 0, } 159 }; 160 161 MODULE_DEVICE_TABLE(pci, snd_als300_ids); 162 163 static inline u32 snd_als300_gcr_read(unsigned long port, unsigned short reg) 164 { 165 outb(reg, port+GCR_INDEX); 166 return inl(port+GCR_DATA); 167 } 168 169 static inline void snd_als300_gcr_write(unsigned long port, 170 unsigned short reg, u32 val) 171 { 172 outb(reg, port+GCR_INDEX); 173 outl(val, port+GCR_DATA); 174 } 175 176 /* Enable/Disable Interrupts */ 177 static void snd_als300_set_irq_flag(struct snd_als300 *chip, int cmd) 178 { 179 u32 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); 180 snd_als300_dbgcallenter(); 181 182 /* boolean XOR check, since old vs. new hardware have 183 directly reversed bit setting for ENABLE and DISABLE. 184 ALS300+ acts like newer versions of ALS300 */ 185 if (((chip->revision > 5 || chip->chip_type == DEVICE_ALS300_PLUS) ^ 186 (cmd == IRQ_ENABLE)) == 0) 187 tmp |= IRQ_SET_BIT; 188 else 189 tmp &= ~IRQ_SET_BIT; 190 snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp); 191 snd_als300_dbgcallleave(); 192 } 193 194 static int snd_als300_free(struct snd_als300 *chip) 195 { 196 snd_als300_dbgcallenter(); 197 snd_als300_set_irq_flag(chip, IRQ_DISABLE); 198 if (chip->irq >= 0) 199 free_irq(chip->irq, chip); 200 pci_release_regions(chip->pci); 201 pci_disable_device(chip->pci); 202 kfree(chip); 203 snd_als300_dbgcallleave(); 204 return 0; 205 } 206 207 static int snd_als300_dev_free(struct snd_device *device) 208 { 209 struct snd_als300 *chip = device->device_data; 210 return snd_als300_free(chip); 211 } 212 213 static irqreturn_t snd_als300_interrupt(int irq, void *dev_id) 214 { 215 u8 status; 216 struct snd_als300 *chip = dev_id; 217 struct snd_als300_substream_data *data; 218 219 status = inb(chip->port+ALS300_IRQ_STATUS); 220 if (!status) /* shared IRQ, for different device?? Exit ASAP! */ 221 return IRQ_NONE; 222 223 /* ACK everything ASAP */ 224 outb(status, chip->port+ALS300_IRQ_STATUS); 225 if (status & IRQ_PLAYBACK) { 226 if (chip->pcm && chip->playback_substream) { 227 data = chip->playback_substream->runtime->private_data; 228 data->period_flipflop ^= 1; 229 snd_pcm_period_elapsed(chip->playback_substream); 230 snd_als300_dbgplay("IRQ_PLAYBACK\n"); 231 } 232 } 233 if (status & IRQ_CAPTURE) { 234 if (chip->pcm && chip->capture_substream) { 235 data = chip->capture_substream->runtime->private_data; 236 data->period_flipflop ^= 1; 237 snd_pcm_period_elapsed(chip->capture_substream); 238 snd_als300_dbgplay("IRQ_CAPTURE\n"); 239 } 240 } 241 return IRQ_HANDLED; 242 } 243 244 static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id) 245 { 246 u8 general, mpu, dram; 247 struct snd_als300 *chip = dev_id; 248 struct snd_als300_substream_data *data; 249 250 general = inb(chip->port+ALS300P_IRQ_STATUS); 251 mpu = inb(chip->port+MPU_IRQ_STATUS); 252 dram = inb(chip->port+ALS300P_DRAM_IRQ_STATUS); 253 254 /* shared IRQ, for different device?? Exit ASAP! */ 255 if ((general == 0) && ((mpu & 0x80) == 0) && ((dram & 0x01) == 0)) 256 return IRQ_NONE; 257 258 if (general & IRQ_PLAYBACK) { 259 if (chip->pcm && chip->playback_substream) { 260 outb(IRQ_PLAYBACK, chip->port+ALS300P_IRQ_STATUS); 261 data = chip->playback_substream->runtime->private_data; 262 data->period_flipflop ^= 1; 263 snd_pcm_period_elapsed(chip->playback_substream); 264 snd_als300_dbgplay("IRQ_PLAYBACK\n"); 265 } 266 } 267 if (general & IRQ_CAPTURE) { 268 if (chip->pcm && chip->capture_substream) { 269 outb(IRQ_CAPTURE, chip->port+ALS300P_IRQ_STATUS); 270 data = chip->capture_substream->runtime->private_data; 271 data->period_flipflop ^= 1; 272 snd_pcm_period_elapsed(chip->capture_substream); 273 snd_als300_dbgplay("IRQ_CAPTURE\n"); 274 } 275 } 276 /* FIXME: Ack other interrupt types. Not important right now as 277 * those other devices aren't enabled. */ 278 return IRQ_HANDLED; 279 } 280 281 static void snd_als300_remove(struct pci_dev *pci) 282 { 283 snd_als300_dbgcallenter(); 284 snd_card_free(pci_get_drvdata(pci)); 285 snd_als300_dbgcallleave(); 286 } 287 288 static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97, 289 unsigned short reg) 290 { 291 int i; 292 struct snd_als300 *chip = ac97->private_data; 293 294 for (i = 0; i < 1000; i++) { 295 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) 296 break; 297 udelay(10); 298 } 299 outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS); 300 301 for (i = 0; i < 1000; i++) { 302 if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0) 303 break; 304 udelay(10); 305 } 306 return inw(chip->port+AC97_READ); 307 } 308 309 static void snd_als300_ac97_write(struct snd_ac97 *ac97, 310 unsigned short reg, unsigned short val) 311 { 312 int i; 313 struct snd_als300 *chip = ac97->private_data; 314 315 for (i = 0; i < 1000; i++) { 316 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) 317 break; 318 udelay(10); 319 } 320 outl((reg << 24) | val, chip->port+AC97_ACCESS); 321 } 322 323 static int snd_als300_ac97(struct snd_als300 *chip) 324 { 325 struct snd_ac97_bus *bus; 326 struct snd_ac97_template ac97; 327 int err; 328 static struct snd_ac97_bus_ops ops = { 329 .write = snd_als300_ac97_write, 330 .read = snd_als300_ac97_read, 331 }; 332 333 snd_als300_dbgcallenter(); 334 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus)) < 0) 335 return err; 336 337 memset(&ac97, 0, sizeof(ac97)); 338 ac97.private_data = chip; 339 340 snd_als300_dbgcallleave(); 341 return snd_ac97_mixer(bus, &ac97, &chip->ac97); 342 } 343 344 /* hardware definition 345 * 346 * In AC97 mode, we always use 48k/16bit/stereo. 347 * Any request to change data type is ignored by 348 * the card when it is running outside of legacy 349 * mode. 350 */ 351 static struct snd_pcm_hardware snd_als300_playback_hw = 352 { 353 .info = (SNDRV_PCM_INFO_MMAP | 354 SNDRV_PCM_INFO_INTERLEAVED | 355 SNDRV_PCM_INFO_PAUSE | 356 SNDRV_PCM_INFO_MMAP_VALID), 357 .formats = SNDRV_PCM_FMTBIT_S16, 358 .rates = SNDRV_PCM_RATE_48000, 359 .rate_min = 48000, 360 .rate_max = 48000, 361 .channels_min = 2, 362 .channels_max = 2, 363 .buffer_bytes_max = 64 * 1024, 364 .period_bytes_min = 64, 365 .period_bytes_max = 32 * 1024, 366 .periods_min = 2, 367 .periods_max = 2, 368 }; 369 370 static struct snd_pcm_hardware snd_als300_capture_hw = 371 { 372 .info = (SNDRV_PCM_INFO_MMAP | 373 SNDRV_PCM_INFO_INTERLEAVED | 374 SNDRV_PCM_INFO_PAUSE | 375 SNDRV_PCM_INFO_MMAP_VALID), 376 .formats = SNDRV_PCM_FMTBIT_S16, 377 .rates = SNDRV_PCM_RATE_48000, 378 .rate_min = 48000, 379 .rate_max = 48000, 380 .channels_min = 2, 381 .channels_max = 2, 382 .buffer_bytes_max = 64 * 1024, 383 .period_bytes_min = 64, 384 .period_bytes_max = 32 * 1024, 385 .periods_min = 2, 386 .periods_max = 2, 387 }; 388 389 static int snd_als300_playback_open(struct snd_pcm_substream *substream) 390 { 391 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 392 struct snd_pcm_runtime *runtime = substream->runtime; 393 struct snd_als300_substream_data *data = kzalloc(sizeof(*data), 394 GFP_KERNEL); 395 396 if (!data) 397 return -ENOMEM; 398 snd_als300_dbgcallenter(); 399 chip->playback_substream = substream; 400 runtime->hw = snd_als300_playback_hw; 401 runtime->private_data = data; 402 data->control_register = PLAYBACK_CONTROL; 403 data->block_counter_register = PLAYBACK_BLOCK_COUNTER; 404 snd_als300_dbgcallleave(); 405 return 0; 406 } 407 408 static int snd_als300_playback_close(struct snd_pcm_substream *substream) 409 { 410 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 411 struct snd_als300_substream_data *data; 412 413 data = substream->runtime->private_data; 414 snd_als300_dbgcallenter(); 415 kfree(data); 416 chip->playback_substream = NULL; 417 snd_pcm_lib_free_pages(substream); 418 snd_als300_dbgcallleave(); 419 return 0; 420 } 421 422 static int snd_als300_capture_open(struct snd_pcm_substream *substream) 423 { 424 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 425 struct snd_pcm_runtime *runtime = substream->runtime; 426 struct snd_als300_substream_data *data = kzalloc(sizeof(*data), 427 GFP_KERNEL); 428 429 if (!data) 430 return -ENOMEM; 431 snd_als300_dbgcallenter(); 432 chip->capture_substream = substream; 433 runtime->hw = snd_als300_capture_hw; 434 runtime->private_data = data; 435 data->control_register = RECORD_CONTROL; 436 data->block_counter_register = RECORD_BLOCK_COUNTER; 437 snd_als300_dbgcallleave(); 438 return 0; 439 } 440 441 static int snd_als300_capture_close(struct snd_pcm_substream *substream) 442 { 443 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 444 struct snd_als300_substream_data *data; 445 446 data = substream->runtime->private_data; 447 snd_als300_dbgcallenter(); 448 kfree(data); 449 chip->capture_substream = NULL; 450 snd_pcm_lib_free_pages(substream); 451 snd_als300_dbgcallleave(); 452 return 0; 453 } 454 455 static int snd_als300_pcm_hw_params(struct snd_pcm_substream *substream, 456 struct snd_pcm_hw_params *hw_params) 457 { 458 return snd_pcm_lib_malloc_pages(substream, 459 params_buffer_bytes(hw_params)); 460 } 461 462 static int snd_als300_pcm_hw_free(struct snd_pcm_substream *substream) 463 { 464 return snd_pcm_lib_free_pages(substream); 465 } 466 467 static int snd_als300_playback_prepare(struct snd_pcm_substream *substream) 468 { 469 u32 tmp; 470 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 471 struct snd_pcm_runtime *runtime = substream->runtime; 472 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 473 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 474 475 snd_als300_dbgcallenter(); 476 spin_lock_irq(&chip->reg_lock); 477 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 478 tmp &= ~TRANSFER_START; 479 480 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", 481 period_bytes, buffer_bytes); 482 483 /* set block size */ 484 tmp &= 0xffff0000; 485 tmp |= period_bytes - 1; 486 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp); 487 488 /* set dma area */ 489 snd_als300_gcr_write(chip->port, PLAYBACK_START, 490 runtime->dma_addr); 491 snd_als300_gcr_write(chip->port, PLAYBACK_END, 492 runtime->dma_addr + buffer_bytes - 1); 493 spin_unlock_irq(&chip->reg_lock); 494 snd_als300_dbgcallleave(); 495 return 0; 496 } 497 498 static int snd_als300_capture_prepare(struct snd_pcm_substream *substream) 499 { 500 u32 tmp; 501 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 502 struct snd_pcm_runtime *runtime = substream->runtime; 503 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 504 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 505 506 snd_als300_dbgcallenter(); 507 spin_lock_irq(&chip->reg_lock); 508 tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL); 509 tmp &= ~TRANSFER_START; 510 511 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes, 512 buffer_bytes); 513 514 /* set block size */ 515 tmp &= 0xffff0000; 516 tmp |= period_bytes - 1; 517 518 /* set dma area */ 519 snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp); 520 snd_als300_gcr_write(chip->port, RECORD_START, 521 runtime->dma_addr); 522 snd_als300_gcr_write(chip->port, RECORD_END, 523 runtime->dma_addr + buffer_bytes - 1); 524 spin_unlock_irq(&chip->reg_lock); 525 snd_als300_dbgcallleave(); 526 return 0; 527 } 528 529 static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd) 530 { 531 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 532 u32 tmp; 533 struct snd_als300_substream_data *data; 534 unsigned short reg; 535 int ret = 0; 536 537 data = substream->runtime->private_data; 538 reg = data->control_register; 539 540 snd_als300_dbgcallenter(); 541 spin_lock(&chip->reg_lock); 542 switch (cmd) { 543 case SNDRV_PCM_TRIGGER_START: 544 case SNDRV_PCM_TRIGGER_RESUME: 545 tmp = snd_als300_gcr_read(chip->port, reg); 546 data->period_flipflop = 1; 547 snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START); 548 snd_als300_dbgplay("TRIGGER START\n"); 549 break; 550 case SNDRV_PCM_TRIGGER_STOP: 551 case SNDRV_PCM_TRIGGER_SUSPEND: 552 tmp = snd_als300_gcr_read(chip->port, reg); 553 snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START); 554 snd_als300_dbgplay("TRIGGER STOP\n"); 555 break; 556 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 557 tmp = snd_als300_gcr_read(chip->port, reg); 558 snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE); 559 snd_als300_dbgplay("TRIGGER PAUSE\n"); 560 break; 561 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 562 tmp = snd_als300_gcr_read(chip->port, reg); 563 snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE); 564 snd_als300_dbgplay("TRIGGER RELEASE\n"); 565 break; 566 default: 567 snd_als300_dbgplay("TRIGGER INVALID\n"); 568 ret = -EINVAL; 569 } 570 spin_unlock(&chip->reg_lock); 571 snd_als300_dbgcallleave(); 572 return ret; 573 } 574 575 static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream) 576 { 577 u16 current_ptr; 578 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 579 struct snd_als300_substream_data *data; 580 unsigned short period_bytes; 581 582 data = substream->runtime->private_data; 583 period_bytes = snd_pcm_lib_period_bytes(substream); 584 585 snd_als300_dbgcallenter(); 586 spin_lock(&chip->reg_lock); 587 current_ptr = (u16) snd_als300_gcr_read(chip->port, 588 data->block_counter_register) + 4; 589 spin_unlock(&chip->reg_lock); 590 if (current_ptr > period_bytes) 591 current_ptr = 0; 592 else 593 current_ptr = period_bytes - current_ptr; 594 595 if (data->period_flipflop == 0) 596 current_ptr += period_bytes; 597 snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr); 598 snd_als300_dbgcallleave(); 599 return bytes_to_frames(substream->runtime, current_ptr); 600 } 601 602 static struct snd_pcm_ops snd_als300_playback_ops = { 603 .open = snd_als300_playback_open, 604 .close = snd_als300_playback_close, 605 .ioctl = snd_pcm_lib_ioctl, 606 .hw_params = snd_als300_pcm_hw_params, 607 .hw_free = snd_als300_pcm_hw_free, 608 .prepare = snd_als300_playback_prepare, 609 .trigger = snd_als300_trigger, 610 .pointer = snd_als300_pointer, 611 }; 612 613 static struct snd_pcm_ops snd_als300_capture_ops = { 614 .open = snd_als300_capture_open, 615 .close = snd_als300_capture_close, 616 .ioctl = snd_pcm_lib_ioctl, 617 .hw_params = snd_als300_pcm_hw_params, 618 .hw_free = snd_als300_pcm_hw_free, 619 .prepare = snd_als300_capture_prepare, 620 .trigger = snd_als300_trigger, 621 .pointer = snd_als300_pointer, 622 }; 623 624 static int snd_als300_new_pcm(struct snd_als300 *chip) 625 { 626 struct snd_pcm *pcm; 627 int err; 628 629 snd_als300_dbgcallenter(); 630 err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm); 631 if (err < 0) 632 return err; 633 pcm->private_data = chip; 634 strcpy(pcm->name, "ALS300"); 635 chip->pcm = pcm; 636 637 /* set operators */ 638 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 639 &snd_als300_playback_ops); 640 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 641 &snd_als300_capture_ops); 642 643 /* pre-allocation of buffers */ 644 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 645 snd_dma_pci_data(chip->pci), 64*1024, 64*1024); 646 snd_als300_dbgcallleave(); 647 return 0; 648 } 649 650 static void snd_als300_init(struct snd_als300 *chip) 651 { 652 unsigned long flags; 653 u32 tmp; 654 655 snd_als300_dbgcallenter(); 656 spin_lock_irqsave(&chip->reg_lock, flags); 657 chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16) 658 & 0x0000000F; 659 /* Setup DRAM */ 660 tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL); 661 snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL, 662 (tmp | DRAM_MODE_2) 663 & ~WRITE_TRANS_START); 664 665 /* Enable IRQ output */ 666 snd_als300_set_irq_flag(chip, IRQ_ENABLE); 667 668 /* Unmute hardware devices so their outputs get routed to 669 * the onboard mixer */ 670 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); 671 snd_als300_gcr_write(chip->port, MISC_CONTROL, 672 tmp | VMUTE_NORMAL | MMUTE_NORMAL); 673 674 /* Reset volumes */ 675 snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0); 676 677 /* Make sure playback transfer is stopped */ 678 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 679 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, 680 tmp & ~TRANSFER_START); 681 spin_unlock_irqrestore(&chip->reg_lock, flags); 682 snd_als300_dbgcallleave(); 683 } 684 685 static int snd_als300_create(struct snd_card *card, 686 struct pci_dev *pci, int chip_type, 687 struct snd_als300 **rchip) 688 { 689 struct snd_als300 *chip; 690 void *irq_handler; 691 int err; 692 693 static struct snd_device_ops ops = { 694 .dev_free = snd_als300_dev_free, 695 }; 696 *rchip = NULL; 697 698 snd_als300_dbgcallenter(); 699 if ((err = pci_enable_device(pci)) < 0) 700 return err; 701 702 if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 || 703 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) { 704 printk(KERN_ERR "error setting 28bit DMA mask\n"); 705 pci_disable_device(pci); 706 return -ENXIO; 707 } 708 pci_set_master(pci); 709 710 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 711 if (chip == NULL) { 712 pci_disable_device(pci); 713 return -ENOMEM; 714 } 715 716 chip->card = card; 717 chip->pci = pci; 718 chip->irq = -1; 719 chip->chip_type = chip_type; 720 spin_lock_init(&chip->reg_lock); 721 722 if ((err = pci_request_regions(pci, "ALS300")) < 0) { 723 kfree(chip); 724 pci_disable_device(pci); 725 return err; 726 } 727 chip->port = pci_resource_start(pci, 0); 728 729 if (chip->chip_type == DEVICE_ALS300_PLUS) 730 irq_handler = snd_als300plus_interrupt; 731 else 732 irq_handler = snd_als300_interrupt; 733 734 if (request_irq(pci->irq, irq_handler, IRQF_SHARED, 735 KBUILD_MODNAME, chip)) { 736 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq); 737 snd_als300_free(chip); 738 return -EBUSY; 739 } 740 chip->irq = pci->irq; 741 742 743 snd_als300_init(chip); 744 745 err = snd_als300_ac97(chip); 746 if (err < 0) { 747 snd_printk(KERN_WARNING "Could not create ac97\n"); 748 snd_als300_free(chip); 749 return err; 750 } 751 752 if ((err = snd_als300_new_pcm(chip)) < 0) { 753 snd_printk(KERN_WARNING "Could not create PCM\n"); 754 snd_als300_free(chip); 755 return err; 756 } 757 758 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, 759 chip, &ops)) < 0) { 760 snd_als300_free(chip); 761 return err; 762 } 763 764 snd_card_set_dev(card, &pci->dev); 765 766 *rchip = chip; 767 snd_als300_dbgcallleave(); 768 return 0; 769 } 770 771 #ifdef CONFIG_PM_SLEEP 772 static int snd_als300_suspend(struct device *dev) 773 { 774 struct pci_dev *pci = to_pci_dev(dev); 775 struct snd_card *card = dev_get_drvdata(dev); 776 struct snd_als300 *chip = card->private_data; 777 778 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 779 snd_pcm_suspend_all(chip->pcm); 780 snd_ac97_suspend(chip->ac97); 781 782 pci_disable_device(pci); 783 pci_save_state(pci); 784 pci_set_power_state(pci, PCI_D3hot); 785 return 0; 786 } 787 788 static int snd_als300_resume(struct device *dev) 789 { 790 struct pci_dev *pci = to_pci_dev(dev); 791 struct snd_card *card = dev_get_drvdata(dev); 792 struct snd_als300 *chip = card->private_data; 793 794 pci_set_power_state(pci, PCI_D0); 795 pci_restore_state(pci); 796 if (pci_enable_device(pci) < 0) { 797 printk(KERN_ERR "als300: pci_enable_device failed, " 798 "disabling device\n"); 799 snd_card_disconnect(card); 800 return -EIO; 801 } 802 pci_set_master(pci); 803 804 snd_als300_init(chip); 805 snd_ac97_resume(chip->ac97); 806 807 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 808 return 0; 809 } 810 811 static SIMPLE_DEV_PM_OPS(snd_als300_pm, snd_als300_suspend, snd_als300_resume); 812 #define SND_ALS300_PM_OPS &snd_als300_pm 813 #else 814 #define SND_ALS300_PM_OPS NULL 815 #endif 816 817 static int snd_als300_probe(struct pci_dev *pci, 818 const struct pci_device_id *pci_id) 819 { 820 static int dev; 821 struct snd_card *card; 822 struct snd_als300 *chip; 823 int err, chip_type; 824 825 if (dev >= SNDRV_CARDS) 826 return -ENODEV; 827 if (!enable[dev]) { 828 dev++; 829 return -ENOENT; 830 } 831 832 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); 833 834 if (err < 0) 835 return err; 836 837 chip_type = pci_id->driver_data; 838 839 if ((err = snd_als300_create(card, pci, chip_type, &chip)) < 0) { 840 snd_card_free(card); 841 return err; 842 } 843 card->private_data = chip; 844 845 strcpy(card->driver, "ALS300"); 846 if (chip->chip_type == DEVICE_ALS300_PLUS) 847 /* don't know much about ALS300+ yet 848 * print revision number for now */ 849 sprintf(card->shortname, "ALS300+ (Rev. %d)", chip->revision); 850 else 851 sprintf(card->shortname, "ALS300 (Rev. %c)", 'A' + 852 chip->revision - 1); 853 sprintf(card->longname, "%s at 0x%lx irq %i", 854 card->shortname, chip->port, chip->irq); 855 856 if ((err = snd_card_register(card)) < 0) { 857 snd_card_free(card); 858 return err; 859 } 860 pci_set_drvdata(pci, card); 861 dev++; 862 return 0; 863 } 864 865 static struct pci_driver als300_driver = { 866 .name = KBUILD_MODNAME, 867 .id_table = snd_als300_ids, 868 .probe = snd_als300_probe, 869 .remove = snd_als300_remove, 870 .driver = { 871 .pm = SND_ALS300_PM_OPS, 872 }, 873 }; 874 875 module_pci_driver(als300_driver); 876