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(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 109enum {DEVICE_ALS300, DEVICE_ALS300_PLUS}; 110 111MODULE_AUTHOR("Ash Willis <ashwillis@programmer.net>"); 112MODULE_DESCRIPTION("Avance Logic ALS300"); 113MODULE_LICENSE("GPL"); 114MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS300},{Avance Logic,ALS300+}}"); 115 116static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 117static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 118static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 119 120struct 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 142struct snd_als300_substream_data { 143 int period_flipflop; 144 int control_register; 145 int block_counter_register; 146}; 147 148static DEFINE_PCI_DEVICE_TABLE(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 154MODULE_DEVICE_TABLE(pci, snd_als300_ids); 155 156static 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 162static 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 */ 170static 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 187static 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 200static 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 206static 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 237static 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 return IRQ_HANDLED; 270} 271 272static void __devexit snd_als300_remove(struct pci_dev *pci) 273{ 274 snd_als300_dbgcallenter(); 275 snd_card_free(pci_get_drvdata(pci)); 276 pci_set_drvdata(pci, NULL); 277 snd_als300_dbgcallleave(); 278} 279 280static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97, 281 unsigned short reg) 282{ 283 int i; 284 struct snd_als300 *chip = ac97->private_data; 285 286 for (i = 0; i < 1000; i++) { 287 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) 288 break; 289 udelay(10); 290 } 291 outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS); 292 293 for (i = 0; i < 1000; i++) { 294 if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0) 295 break; 296 udelay(10); 297 } 298 return inw(chip->port+AC97_READ); 299} 300 301static void snd_als300_ac97_write(struct snd_ac97 *ac97, 302 unsigned short reg, unsigned short val) 303{ 304 int i; 305 struct snd_als300 *chip = ac97->private_data; 306 307 for (i = 0; i < 1000; i++) { 308 if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) 309 break; 310 udelay(10); 311 } 312 outl((reg << 24) | val, chip->port+AC97_ACCESS); 313} 314 315static int snd_als300_ac97(struct snd_als300 *chip) 316{ 317 struct snd_ac97_bus *bus; 318 struct snd_ac97_template ac97; 319 int err; 320 static struct snd_ac97_bus_ops ops = { 321 .write = snd_als300_ac97_write, 322 .read = snd_als300_ac97_read, 323 }; 324 325 snd_als300_dbgcallenter(); 326 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus)) < 0) 327 return err; 328 329 memset(&ac97, 0, sizeof(ac97)); 330 ac97.private_data = chip; 331 332 snd_als300_dbgcallleave(); 333 return snd_ac97_mixer(bus, &ac97, &chip->ac97); 334} 335 336/* hardware definition 337 * 338 * In AC97 mode, we always use 48k/16bit/stereo. 339 * Any request to change data type is ignored by 340 * the card when it is running outside of legacy 341 * mode. 342 */ 343static struct snd_pcm_hardware snd_als300_playback_hw = 344{ 345 .info = (SNDRV_PCM_INFO_MMAP | 346 SNDRV_PCM_INFO_INTERLEAVED | 347 SNDRV_PCM_INFO_PAUSE | 348 SNDRV_PCM_INFO_MMAP_VALID), 349 .formats = SNDRV_PCM_FMTBIT_S16, 350 .rates = SNDRV_PCM_RATE_48000, 351 .rate_min = 48000, 352 .rate_max = 48000, 353 .channels_min = 2, 354 .channels_max = 2, 355 .buffer_bytes_max = 64 * 1024, 356 .period_bytes_min = 64, 357 .period_bytes_max = 32 * 1024, 358 .periods_min = 2, 359 .periods_max = 2, 360}; 361 362static struct snd_pcm_hardware snd_als300_capture_hw = 363{ 364 .info = (SNDRV_PCM_INFO_MMAP | 365 SNDRV_PCM_INFO_INTERLEAVED | 366 SNDRV_PCM_INFO_PAUSE | 367 SNDRV_PCM_INFO_MMAP_VALID), 368 .formats = SNDRV_PCM_FMTBIT_S16, 369 .rates = SNDRV_PCM_RATE_48000, 370 .rate_min = 48000, 371 .rate_max = 48000, 372 .channels_min = 2, 373 .channels_max = 2, 374 .buffer_bytes_max = 64 * 1024, 375 .period_bytes_min = 64, 376 .period_bytes_max = 32 * 1024, 377 .periods_min = 2, 378 .periods_max = 2, 379}; 380 381static int snd_als300_playback_open(struct snd_pcm_substream *substream) 382{ 383 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 384 struct snd_pcm_runtime *runtime = substream->runtime; 385 struct snd_als300_substream_data *data = kzalloc(sizeof(*data), 386 GFP_KERNEL); 387 388 snd_als300_dbgcallenter(); 389 chip->playback_substream = substream; 390 runtime->hw = snd_als300_playback_hw; 391 runtime->private_data = data; 392 data->control_register = PLAYBACK_CONTROL; 393 data->block_counter_register = PLAYBACK_BLOCK_COUNTER; 394 snd_als300_dbgcallleave(); 395 return 0; 396} 397 398static int snd_als300_playback_close(struct snd_pcm_substream *substream) 399{ 400 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 401 struct snd_als300_substream_data *data; 402 403 data = substream->runtime->private_data; 404 snd_als300_dbgcallenter(); 405 kfree(data); 406 chip->playback_substream = NULL; 407 snd_pcm_lib_free_pages(substream); 408 snd_als300_dbgcallleave(); 409 return 0; 410} 411 412static int snd_als300_capture_open(struct snd_pcm_substream *substream) 413{ 414 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 415 struct snd_pcm_runtime *runtime = substream->runtime; 416 struct snd_als300_substream_data *data = kzalloc(sizeof(*data), 417 GFP_KERNEL); 418 419 snd_als300_dbgcallenter(); 420 chip->capture_substream = substream; 421 runtime->hw = snd_als300_capture_hw; 422 runtime->private_data = data; 423 data->control_register = RECORD_CONTROL; 424 data->block_counter_register = RECORD_BLOCK_COUNTER; 425 snd_als300_dbgcallleave(); 426 return 0; 427} 428 429static int snd_als300_capture_close(struct snd_pcm_substream *substream) 430{ 431 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 432 struct snd_als300_substream_data *data; 433 434 data = substream->runtime->private_data; 435 snd_als300_dbgcallenter(); 436 kfree(data); 437 chip->capture_substream = NULL; 438 snd_pcm_lib_free_pages(substream); 439 snd_als300_dbgcallleave(); 440 return 0; 441} 442 443static int snd_als300_pcm_hw_params(struct snd_pcm_substream *substream, 444 struct snd_pcm_hw_params *hw_params) 445{ 446 return snd_pcm_lib_malloc_pages(substream, 447 params_buffer_bytes(hw_params)); 448} 449 450static int snd_als300_pcm_hw_free(struct snd_pcm_substream *substream) 451{ 452 return snd_pcm_lib_free_pages(substream); 453} 454 455static int snd_als300_playback_prepare(struct snd_pcm_substream *substream) 456{ 457 u32 tmp; 458 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 459 struct snd_pcm_runtime *runtime = substream->runtime; 460 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 461 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 462 463 snd_als300_dbgcallenter(); 464 spin_lock_irq(&chip->reg_lock); 465 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 466 tmp &= ~TRANSFER_START; 467 468 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", 469 period_bytes, buffer_bytes); 470 471 /* set block size */ 472 tmp &= 0xffff0000; 473 tmp |= period_bytes - 1; 474 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp); 475 476 /* set dma area */ 477 snd_als300_gcr_write(chip->port, PLAYBACK_START, 478 runtime->dma_addr); 479 snd_als300_gcr_write(chip->port, PLAYBACK_END, 480 runtime->dma_addr + buffer_bytes - 1); 481 spin_unlock_irq(&chip->reg_lock); 482 snd_als300_dbgcallleave(); 483 return 0; 484} 485 486static int snd_als300_capture_prepare(struct snd_pcm_substream *substream) 487{ 488 u32 tmp; 489 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 490 struct snd_pcm_runtime *runtime = substream->runtime; 491 unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); 492 unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); 493 494 snd_als300_dbgcallenter(); 495 spin_lock_irq(&chip->reg_lock); 496 tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL); 497 tmp &= ~TRANSFER_START; 498 499 snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes, 500 buffer_bytes); 501 502 /* set block size */ 503 tmp &= 0xffff0000; 504 tmp |= period_bytes - 1; 505 506 /* set dma area */ 507 snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp); 508 snd_als300_gcr_write(chip->port, RECORD_START, 509 runtime->dma_addr); 510 snd_als300_gcr_write(chip->port, RECORD_END, 511 runtime->dma_addr + buffer_bytes - 1); 512 spin_unlock_irq(&chip->reg_lock); 513 snd_als300_dbgcallleave(); 514 return 0; 515} 516 517static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd) 518{ 519 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 520 u32 tmp; 521 struct snd_als300_substream_data *data; 522 unsigned short reg; 523 int ret = 0; 524 525 data = substream->runtime->private_data; 526 reg = data->control_register; 527 528 snd_als300_dbgcallenter(); 529 spin_lock(&chip->reg_lock); 530 switch (cmd) { 531 case SNDRV_PCM_TRIGGER_START: 532 case SNDRV_PCM_TRIGGER_RESUME: 533 tmp = snd_als300_gcr_read(chip->port, reg); 534 data->period_flipflop = 1; 535 snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START); 536 snd_als300_dbgplay("TRIGGER START\n"); 537 break; 538 case SNDRV_PCM_TRIGGER_STOP: 539 case SNDRV_PCM_TRIGGER_SUSPEND: 540 tmp = snd_als300_gcr_read(chip->port, reg); 541 snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START); 542 snd_als300_dbgplay("TRIGGER STOP\n"); 543 break; 544 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 545 tmp = snd_als300_gcr_read(chip->port, reg); 546 snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE); 547 snd_als300_dbgplay("TRIGGER PAUSE\n"); 548 break; 549 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 550 tmp = snd_als300_gcr_read(chip->port, reg); 551 snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE); 552 snd_als300_dbgplay("TRIGGER RELEASE\n"); 553 break; 554 default: 555 snd_als300_dbgplay("TRIGGER INVALID\n"); 556 ret = -EINVAL; 557 } 558 spin_unlock(&chip->reg_lock); 559 snd_als300_dbgcallleave(); 560 return ret; 561} 562 563static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream) 564{ 565 u16 current_ptr; 566 struct snd_als300 *chip = snd_pcm_substream_chip(substream); 567 struct snd_als300_substream_data *data; 568 unsigned short period_bytes; 569 570 data = substream->runtime->private_data; 571 period_bytes = snd_pcm_lib_period_bytes(substream); 572 573 snd_als300_dbgcallenter(); 574 spin_lock(&chip->reg_lock); 575 current_ptr = (u16) snd_als300_gcr_read(chip->port, 576 data->block_counter_register) + 4; 577 spin_unlock(&chip->reg_lock); 578 if (current_ptr > period_bytes) 579 current_ptr = 0; 580 else 581 current_ptr = period_bytes - current_ptr; 582 583 if (data->period_flipflop == 0) 584 current_ptr += period_bytes; 585 snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr); 586 snd_als300_dbgcallleave(); 587 return bytes_to_frames(substream->runtime, current_ptr); 588} 589 590static struct snd_pcm_ops snd_als300_playback_ops = { 591 .open = snd_als300_playback_open, 592 .close = snd_als300_playback_close, 593 .ioctl = snd_pcm_lib_ioctl, 594 .hw_params = snd_als300_pcm_hw_params, 595 .hw_free = snd_als300_pcm_hw_free, 596 .prepare = snd_als300_playback_prepare, 597 .trigger = snd_als300_trigger, 598 .pointer = snd_als300_pointer, 599}; 600 601static struct snd_pcm_ops snd_als300_capture_ops = { 602 .open = snd_als300_capture_open, 603 .close = snd_als300_capture_close, 604 .ioctl = snd_pcm_lib_ioctl, 605 .hw_params = snd_als300_pcm_hw_params, 606 .hw_free = snd_als300_pcm_hw_free, 607 .prepare = snd_als300_capture_prepare, 608 .trigger = snd_als300_trigger, 609 .pointer = snd_als300_pointer, 610}; 611 612static int __devinit snd_als300_new_pcm(struct snd_als300 *chip) 613{ 614 struct snd_pcm *pcm; 615 int err; 616 617 snd_als300_dbgcallenter(); 618 err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm); 619 if (err < 0) 620 return err; 621 pcm->private_data = chip; 622 strcpy(pcm->name, "ALS300"); 623 chip->pcm = pcm; 624 625 /* set operators */ 626 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, 627 &snd_als300_playback_ops); 628 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, 629 &snd_als300_capture_ops); 630 631 /* pre-allocation of buffers */ 632 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 633 snd_dma_pci_data(chip->pci), 64*1024, 64*1024); 634 snd_als300_dbgcallleave(); 635 return 0; 636} 637 638static void snd_als300_init(struct snd_als300 *chip) 639{ 640 unsigned long flags; 641 u32 tmp; 642 643 snd_als300_dbgcallenter(); 644 spin_lock_irqsave(&chip->reg_lock, flags); 645 chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16) 646 & 0x0000000F; 647 /* Setup DRAM */ 648 tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL); 649 snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL, 650 (tmp | DRAM_MODE_2) 651 & ~WRITE_TRANS_START); 652 653 /* Enable IRQ output */ 654 snd_als300_set_irq_flag(chip, IRQ_ENABLE); 655 656 /* Unmute hardware devices so their outputs get routed to 657 * the onboard mixer */ 658 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); 659 snd_als300_gcr_write(chip->port, MISC_CONTROL, 660 tmp | VMUTE_NORMAL | MMUTE_NORMAL); 661 662 /* Reset volumes */ 663 snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0); 664 665 /* Make sure playback transfer is stopped */ 666 tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); 667 snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, 668 tmp & ~TRANSFER_START); 669 spin_unlock_irqrestore(&chip->reg_lock, flags); 670 snd_als300_dbgcallleave(); 671} 672 673static int __devinit snd_als300_create(struct snd_card *card, 674 struct pci_dev *pci, int chip_type, 675 struct snd_als300 **rchip) 676{ 677 struct snd_als300 *chip; 678 void *irq_handler; 679 int err; 680 681 static struct snd_device_ops ops = { 682 .dev_free = snd_als300_dev_free, 683 }; 684 *rchip = NULL; 685 686 snd_als300_dbgcallenter(); 687 if ((err = pci_enable_device(pci)) < 0) 688 return err; 689 690 if (pci_set_dma_mask(pci, DMA_BIT_MASK(28)) < 0 || 691 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(28)) < 0) { 692 printk(KERN_ERR "error setting 28bit DMA mask\n"); 693 pci_disable_device(pci); 694 return -ENXIO; 695 } 696 pci_set_master(pci); 697 698 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 699 if (chip == NULL) { 700 pci_disable_device(pci); 701 return -ENOMEM; 702 } 703 704 chip->card = card; 705 chip->pci = pci; 706 chip->irq = -1; 707 chip->chip_type = chip_type; 708 spin_lock_init(&chip->reg_lock); 709 710 if ((err = pci_request_regions(pci, "ALS300")) < 0) { 711 kfree(chip); 712 pci_disable_device(pci); 713 return err; 714 } 715 chip->port = pci_resource_start(pci, 0); 716 717 if (chip->chip_type == DEVICE_ALS300_PLUS) 718 irq_handler = snd_als300plus_interrupt; 719 else 720 irq_handler = snd_als300_interrupt; 721 722 if (request_irq(pci->irq, irq_handler, IRQF_SHARED, 723 card->shortname, chip)) { 724 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq); 725 snd_als300_free(chip); 726 return -EBUSY; 727 } 728 chip->irq = pci->irq; 729 730 731 snd_als300_init(chip); 732 733 err = snd_als300_ac97(chip); 734 if (err < 0) { 735 snd_printk(KERN_WARNING "Could not create ac97\n"); 736 snd_als300_free(chip); 737 return err; 738 } 739 740 if ((err = snd_als300_new_pcm(chip)) < 0) { 741 snd_printk(KERN_WARNING "Could not create PCM\n"); 742 snd_als300_free(chip); 743 return err; 744 } 745 746 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, 747 chip, &ops)) < 0) { 748 snd_als300_free(chip); 749 return err; 750 } 751 752 snd_card_set_dev(card, &pci->dev); 753 754 *rchip = chip; 755 snd_als300_dbgcallleave(); 756 return 0; 757} 758 759#ifdef CONFIG_PM 760static int snd_als300_suspend(struct pci_dev *pci, pm_message_t state) 761{ 762 struct snd_card *card = pci_get_drvdata(pci); 763 struct snd_als300 *chip = card->private_data; 764 765 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 766 snd_pcm_suspend_all(chip->pcm); 767 snd_ac97_suspend(chip->ac97); 768 769 pci_disable_device(pci); 770 pci_save_state(pci); 771 pci_set_power_state(pci, pci_choose_state(pci, state)); 772 return 0; 773} 774 775static int snd_als300_resume(struct pci_dev *pci) 776{ 777 struct snd_card *card = pci_get_drvdata(pci); 778 struct snd_als300 *chip = card->private_data; 779 780 pci_set_power_state(pci, PCI_D0); 781 pci_restore_state(pci); 782 if (pci_enable_device(pci) < 0) { 783 printk(KERN_ERR "als300: pci_enable_device failed, " 784 "disabling device\n"); 785 snd_card_disconnect(card); 786 return -EIO; 787 } 788 pci_set_master(pci); 789 790 snd_als300_init(chip); 791 snd_ac97_resume(chip->ac97); 792 793 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 794 return 0; 795} 796#endif 797 798static int __devinit snd_als300_probe(struct pci_dev *pci, 799 const struct pci_device_id *pci_id) 800{ 801 static int dev; 802 struct snd_card *card; 803 struct snd_als300 *chip; 804 int err, chip_type; 805 806 if (dev >= SNDRV_CARDS) 807 return -ENODEV; 808 if (!enable[dev]) { 809 dev++; 810 return -ENOENT; 811 } 812 813 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); 814 815 if (err < 0) 816 return err; 817 818 chip_type = pci_id->driver_data; 819 820 if ((err = snd_als300_create(card, pci, chip_type, &chip)) < 0) { 821 snd_card_free(card); 822 return err; 823 } 824 card->private_data = chip; 825 826 strcpy(card->driver, "ALS300"); 827 if (chip->chip_type == DEVICE_ALS300_PLUS) 828 /* don't know much about ALS300+ yet 829 * print revision number for now */ 830 sprintf(card->shortname, "ALS300+ (Rev. %d)", chip->revision); 831 else 832 sprintf(card->shortname, "ALS300 (Rev. %c)", 'A' + 833 chip->revision - 1); 834 sprintf(card->longname, "%s at 0x%lx irq %i", 835 card->shortname, chip->port, chip->irq); 836 837 if ((err = snd_card_register(card)) < 0) { 838 snd_card_free(card); 839 return err; 840 } 841 pci_set_drvdata(pci, card); 842 dev++; 843 return 0; 844} 845 846static struct pci_driver driver = { 847 .name = "ALS300", 848 .id_table = snd_als300_ids, 849 .probe = snd_als300_probe, 850 .remove = __devexit_p(snd_als300_remove), 851#ifdef CONFIG_PM 852 .suspend = snd_als300_suspend, 853 .resume = snd_als300_resume, 854#endif 855}; 856 857static int __init alsa_card_als300_init(void) 858{ 859 return pci_register_driver(&driver); 860} 861 862static void __exit alsa_card_als300_exit(void) 863{ 864 pci_unregister_driver(&driver); 865} 866 867module_init(alsa_card_als300_init) 868module_exit(alsa_card_als300_exit) 869