1/* 2 * card-als4000.c - driver for Avance Logic ALS4000 based soundcards. 3 * Copyright (C) 2000 by Bart Hartgers <bart@etpmod.phys.tue.nl>, 4 * Jaroslav Kysela <perex@suse.cz> 5 * Copyright (C) 2002 by Andreas Mohr <hw7oshyuv3001@sneakemail.com> 6 * 7 * Framework borrowed from Massimo Piccioni's card-als100.c. 8 * 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or 13 * (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 23 * 24 * NOTES 25 * 26 * Since Avance does not provide any meaningful documentation, and I 27 * bought an ALS4000 based soundcard, I was forced to base this driver 28 * on reverse engineering. 29 * 30 * Note: this is no longer true. Pretty verbose chip docu (ALS4000a.PDF) 31 * can be found on the ALSA web site. 32 * 33 * The ALS4000 seems to be the PCI-cousin of the ALS100. It contains an 34 * ALS100-like SB DSP/mixer, an OPL3 synth, a MPU401 and a gameport 35 * interface. These subsystems can be mapped into ISA io-port space, 36 * using the PCI-interface. In addition, the PCI-bit provides DMA and IRQ 37 * services to the subsystems. 38 * 39 * While ALS4000 is very similar to a SoundBlaster, the differences in 40 * DMA and capturing require more changes to the SoundBlaster than 41 * desirable, so I made this separate driver. 42 * 43 * The ALS4000 can do real full duplex playback/capture. 44 * 45 * FMDAC: 46 * - 0x4f -> port 0x14 47 * - port 0x15 |= 1 48 * 49 * Enable/disable 3D sound: 50 * - 0x50 -> port 0x14 51 * - change bit 6 (0x40) of port 0x15 52 * 53 * Set QSound: 54 * - 0xdb -> port 0x14 55 * - set port 0x15: 56 * 0x3e (mode 3), 0x3c (mode 2), 0x3a (mode 1), 0x38 (mode 0) 57 * 58 * Set KSound: 59 * - value -> some port 0x0c0d 60 * 61 * ToDo: 62 * - Proper shared IRQ handling? 63 * - power management? (card can do voice wakeup according to datasheet!!) 64 */ 65 66#include <sound/driver.h> 67#include <asm/io.h> 68#include <linux/init.h> 69#include <linux/pci.h> 70#include <linux/slab.h> 71#include <linux/gameport.h> 72#include <linux/moduleparam.h> 73#include <linux/dma-mapping.h> 74#include <sound/core.h> 75#include <sound/pcm.h> 76#include <sound/rawmidi.h> 77#include <sound/mpu401.h> 78#include <sound/opl3.h> 79#include <sound/sb.h> 80#include <sound/initval.h> 81 82MODULE_AUTHOR("Bart Hartgers <bart@etpmod.phys.tue.nl>"); 83MODULE_DESCRIPTION("Avance Logic ALS4000"); 84MODULE_LICENSE("GPL"); 85MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS4000}}"); 86 87#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE)) 88#define SUPPORT_JOYSTICK 1 89#endif 90 91static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 92static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 93static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ 94#ifdef SUPPORT_JOYSTICK 95static int joystick_port[SNDRV_CARDS]; 96#endif 97 98module_param_array(index, int, NULL, 0444); 99MODULE_PARM_DESC(index, "Index value for ALS4000 soundcard."); 100module_param_array(id, charp, NULL, 0444); 101MODULE_PARM_DESC(id, "ID string for ALS4000 soundcard."); 102module_param_array(enable, bool, NULL, 0444); 103MODULE_PARM_DESC(enable, "Enable ALS4000 soundcard."); 104#ifdef SUPPORT_JOYSTICK 105module_param_array(joystick_port, int, NULL, 0444); 106MODULE_PARM_DESC(joystick_port, "Joystick port address for ALS4000 soundcard. (0 = disabled)"); 107#endif 108 109struct snd_card_als4000 { 110 /* most frequent access first */ 111 unsigned long gcr; 112 struct pci_dev *pci; 113 struct snd_sb *chip; 114#ifdef SUPPORT_JOYSTICK 115 struct gameport *gameport; 116#endif 117}; 118 119static struct pci_device_id snd_als4000_ids[] = { 120 { 0x4005, 0x4000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* ALS4000 */ 121 { 0, } 122}; 123 124MODULE_DEVICE_TABLE(pci, snd_als4000_ids); 125 126static inline void snd_als4000_gcr_write_addr(unsigned long port, u32 reg, u32 val) 127{ 128 outb(reg, port+0x0c); 129 outl(val, port+0x08); 130} 131 132static inline void snd_als4000_gcr_write(struct snd_sb *sb, u32 reg, u32 val) 133{ 134 snd_als4000_gcr_write_addr(sb->alt_port, reg, val); 135} 136 137static inline u32 snd_als4000_gcr_read_addr(unsigned long port, u32 reg) 138{ 139 outb(reg, port+0x0c); 140 return inl(port+0x08); 141} 142 143static inline u32 snd_als4000_gcr_read(struct snd_sb *sb, u32 reg) 144{ 145 return snd_als4000_gcr_read_addr(sb->alt_port, reg); 146} 147 148static void snd_als4000_set_rate(struct snd_sb *chip, unsigned int rate) 149{ 150 if (!(chip->mode & SB_RATE_LOCK)) { 151 snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE_OUT); 152 snd_sbdsp_command(chip, rate>>8); 153 snd_sbdsp_command(chip, rate); 154 } 155} 156 157static inline void snd_als4000_set_capture_dma(struct snd_sb *chip, 158 dma_addr_t addr, unsigned size) 159{ 160 snd_als4000_gcr_write(chip, 0xa2, addr); 161 snd_als4000_gcr_write(chip, 0xa3, (size-1)); 162} 163 164static inline void snd_als4000_set_playback_dma(struct snd_sb *chip, 165 dma_addr_t addr, unsigned size) 166{ 167 snd_als4000_gcr_write(chip, 0x91, addr); 168 snd_als4000_gcr_write(chip, 0x92, (size-1)|0x180000); 169} 170 171#define ALS4000_FORMAT_SIGNED (1<<0) 172#define ALS4000_FORMAT_16BIT (1<<1) 173#define ALS4000_FORMAT_STEREO (1<<2) 174 175static int snd_als4000_get_format(struct snd_pcm_runtime *runtime) 176{ 177 int result; 178 179 result = 0; 180 if (snd_pcm_format_signed(runtime->format)) 181 result |= ALS4000_FORMAT_SIGNED; 182 if (snd_pcm_format_physical_width(runtime->format) == 16) 183 result |= ALS4000_FORMAT_16BIT; 184 if (runtime->channels > 1) 185 result |= ALS4000_FORMAT_STEREO; 186 return result; 187} 188 189/* structure for setting up playback */ 190static const struct { 191 unsigned char dsp_cmd, dma_on, dma_off, format; 192} playback_cmd_vals[]={ 193/* ALS4000_FORMAT_U8_MONO */ 194{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_MONO }, 195/* ALS4000_FORMAT_S8_MONO */ 196{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_MONO }, 197/* ALS4000_FORMAT_U16L_MONO */ 198{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_MONO }, 199/* ALS4000_FORMAT_S16L_MONO */ 200{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_MONO }, 201/* ALS4000_FORMAT_U8_STEREO */ 202{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_STEREO }, 203/* ALS4000_FORMAT_S8_STEREO */ 204{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_STEREO }, 205/* ALS4000_FORMAT_U16L_STEREO */ 206{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_STEREO }, 207/* ALS4000_FORMAT_S16L_STEREO */ 208{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_STEREO }, 209}; 210#define playback_cmd(chip) (playback_cmd_vals[(chip)->playback_format]) 211 212/* structure for setting up capture */ 213enum { CMD_WIDTH8=0x04, CMD_SIGNED=0x10, CMD_MONO=0x80, CMD_STEREO=0xA0 }; 214static const unsigned char capture_cmd_vals[]= 215{ 216CMD_WIDTH8|CMD_MONO, /* ALS4000_FORMAT_U8_MONO */ 217CMD_WIDTH8|CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S8_MONO */ 218CMD_MONO, /* ALS4000_FORMAT_U16L_MONO */ 219CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S16L_MONO */ 220CMD_WIDTH8|CMD_STEREO, /* ALS4000_FORMAT_U8_STEREO */ 221CMD_WIDTH8|CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S8_STEREO */ 222CMD_STEREO, /* ALS4000_FORMAT_U16L_STEREO */ 223CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S16L_STEREO */ 224}; 225#define capture_cmd(chip) (capture_cmd_vals[(chip)->capture_format]) 226 227static int snd_als4000_hw_params(struct snd_pcm_substream *substream, 228 struct snd_pcm_hw_params *hw_params) 229{ 230 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); 231} 232 233static int snd_als4000_hw_free(struct snd_pcm_substream *substream) 234{ 235 snd_pcm_lib_free_pages(substream); 236 return 0; 237} 238 239static int snd_als4000_capture_prepare(struct snd_pcm_substream *substream) 240{ 241 struct snd_sb *chip = snd_pcm_substream_chip(substream); 242 struct snd_pcm_runtime *runtime = substream->runtime; 243 unsigned long size; 244 unsigned count; 245 246 chip->capture_format = snd_als4000_get_format(runtime); 247 248 size = snd_pcm_lib_buffer_bytes(substream); 249 count = snd_pcm_lib_period_bytes(substream); 250 251 if (chip->capture_format & ALS4000_FORMAT_16BIT) 252 count >>=1; 253 count--; 254 255 spin_lock_irq(&chip->reg_lock); 256 snd_als4000_set_rate(chip, runtime->rate); 257 snd_als4000_set_capture_dma(chip, runtime->dma_addr, size); 258 spin_unlock_irq(&chip->reg_lock); 259 spin_lock_irq(&chip->mixer_lock); 260 snd_sbmixer_write(chip, 0xdc, count); 261 snd_sbmixer_write(chip, 0xdd, count>>8); 262 spin_unlock_irq(&chip->mixer_lock); 263 return 0; 264} 265 266static int snd_als4000_playback_prepare(struct snd_pcm_substream *substream) 267{ 268 struct snd_sb *chip = snd_pcm_substream_chip(substream); 269 struct snd_pcm_runtime *runtime = substream->runtime; 270 unsigned long size; 271 unsigned count; 272 273 chip->playback_format = snd_als4000_get_format(runtime); 274 275 size = snd_pcm_lib_buffer_bytes(substream); 276 count = snd_pcm_lib_period_bytes(substream); 277 278 if (chip->playback_format & ALS4000_FORMAT_16BIT) 279 count >>=1; 280 count--; 281 282 spin_lock_irq(&chip->reg_lock); 283 snd_als4000_set_rate(chip, runtime->rate); 284 snd_als4000_set_playback_dma(chip, runtime->dma_addr, size); 285 286 /* SPEAKER_ON not needed, since dma_on seems to also enable speaker */ 287 /* snd_sbdsp_command(chip, SB_DSP_SPEAKER_ON); */ 288 snd_sbdsp_command(chip, playback_cmd(chip).dsp_cmd); 289 snd_sbdsp_command(chip, playback_cmd(chip).format); 290 snd_sbdsp_command(chip, count); 291 snd_sbdsp_command(chip, count>>8); 292 snd_sbdsp_command(chip, playback_cmd(chip).dma_off); 293 spin_unlock_irq(&chip->reg_lock); 294 295 return 0; 296} 297 298static int snd_als4000_capture_trigger(struct snd_pcm_substream *substream, int cmd) 299{ 300 struct snd_sb *chip = snd_pcm_substream_chip(substream); 301 int result = 0; 302 303 spin_lock(&chip->mixer_lock); 304 switch (cmd) { 305 case SNDRV_PCM_TRIGGER_START: 306 case SNDRV_PCM_TRIGGER_RESUME: 307 chip->mode |= SB_RATE_LOCK_CAPTURE; 308 snd_sbmixer_write(chip, 0xde, capture_cmd(chip)); 309 break; 310 case SNDRV_PCM_TRIGGER_STOP: 311 case SNDRV_PCM_TRIGGER_SUSPEND: 312 chip->mode &= ~SB_RATE_LOCK_CAPTURE; 313 snd_sbmixer_write(chip, 0xde, 0); 314 break; 315 default: 316 result = -EINVAL; 317 break; 318 } 319 spin_unlock(&chip->mixer_lock); 320 return result; 321} 322 323static int snd_als4000_playback_trigger(struct snd_pcm_substream *substream, int cmd) 324{ 325 struct snd_sb *chip = snd_pcm_substream_chip(substream); 326 int result = 0; 327 328 spin_lock(&chip->reg_lock); 329 switch (cmd) { 330 case SNDRV_PCM_TRIGGER_START: 331 case SNDRV_PCM_TRIGGER_RESUME: 332 chip->mode |= SB_RATE_LOCK_PLAYBACK; 333 snd_sbdsp_command(chip, playback_cmd(chip).dma_on); 334 break; 335 case SNDRV_PCM_TRIGGER_STOP: 336 case SNDRV_PCM_TRIGGER_SUSPEND: 337 snd_sbdsp_command(chip, playback_cmd(chip).dma_off); 338 chip->mode &= ~SB_RATE_LOCK_PLAYBACK; 339 break; 340 default: 341 result = -EINVAL; 342 break; 343 } 344 spin_unlock(&chip->reg_lock); 345 return result; 346} 347 348static snd_pcm_uframes_t snd_als4000_capture_pointer(struct snd_pcm_substream *substream) 349{ 350 struct snd_sb *chip = snd_pcm_substream_chip(substream); 351 unsigned int result; 352 353 spin_lock(&chip->reg_lock); 354 result = snd_als4000_gcr_read(chip, 0xa4) & 0xffff; 355 spin_unlock(&chip->reg_lock); 356 return bytes_to_frames( substream->runtime, result ); 357} 358 359static snd_pcm_uframes_t snd_als4000_playback_pointer(struct snd_pcm_substream *substream) 360{ 361 struct snd_sb *chip = snd_pcm_substream_chip(substream); 362 unsigned result; 363 364 spin_lock(&chip->reg_lock); 365 result = snd_als4000_gcr_read(chip, 0xa0) & 0xffff; 366 spin_unlock(&chip->reg_lock); 367 return bytes_to_frames( substream->runtime, result ); 368} 369 370static irqreturn_t snd_als4000_interrupt(int irq, void *dev_id) 371{ 372 struct snd_sb *chip = dev_id; 373 unsigned gcr_status; 374 unsigned sb_status; 375 376 /* find out which bit of the ALS4000 produced the interrupt */ 377 gcr_status = inb(chip->alt_port + 0xe); 378 379 if ((gcr_status & 0x80) && (chip->playback_substream)) /* playback */ 380 snd_pcm_period_elapsed(chip->playback_substream); 381 if ((gcr_status & 0x40) && (chip->capture_substream)) /* capturing */ 382 snd_pcm_period_elapsed(chip->capture_substream); 383 if ((gcr_status & 0x10) && (chip->rmidi)) /* MPU401 interrupt */ 384 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data); 385 /* release the gcr */ 386 outb(gcr_status, chip->alt_port + 0xe); 387 388 spin_lock(&chip->mixer_lock); 389 sb_status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS); 390 spin_unlock(&chip->mixer_lock); 391 392 if (sb_status & SB_IRQTYPE_8BIT) 393 snd_sb_ack_8bit(chip); 394 if (sb_status & SB_IRQTYPE_16BIT) 395 snd_sb_ack_16bit(chip); 396 if (sb_status & SB_IRQTYPE_MPUIN) 397 inb(chip->mpu_port); 398 if (sb_status & 0x20) 399 inb(SBP(chip, RESET)); 400 return IRQ_HANDLED; 401} 402 403/*****************************************************************/ 404 405static struct snd_pcm_hardware snd_als4000_playback = 406{ 407 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 408 SNDRV_PCM_INFO_MMAP_VALID), 409 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | 410 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */ 411 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 412 .rate_min = 4000, 413 .rate_max = 48000, 414 .channels_min = 1, 415 .channels_max = 2, 416 .buffer_bytes_max = 65536, 417 .period_bytes_min = 64, 418 .period_bytes_max = 65536, 419 .periods_min = 1, 420 .periods_max = 1024, 421 .fifo_size = 0 422}; 423 424static struct snd_pcm_hardware snd_als4000_capture = 425{ 426 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 427 SNDRV_PCM_INFO_MMAP_VALID), 428 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | 429 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */ 430 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 431 .rate_min = 4000, 432 .rate_max = 48000, 433 .channels_min = 1, 434 .channels_max = 2, 435 .buffer_bytes_max = 65536, 436 .period_bytes_min = 64, 437 .period_bytes_max = 65536, 438 .periods_min = 1, 439 .periods_max = 1024, 440 .fifo_size = 0 441}; 442 443/*****************************************************************/ 444 445static int snd_als4000_playback_open(struct snd_pcm_substream *substream) 446{ 447 struct snd_sb *chip = snd_pcm_substream_chip(substream); 448 struct snd_pcm_runtime *runtime = substream->runtime; 449 450 chip->playback_substream = substream; 451 runtime->hw = snd_als4000_playback; 452 return 0; 453} 454 455static int snd_als4000_playback_close(struct snd_pcm_substream *substream) 456{ 457 struct snd_sb *chip = snd_pcm_substream_chip(substream); 458 459 chip->playback_substream = NULL; 460 snd_pcm_lib_free_pages(substream); 461 return 0; 462} 463 464static int snd_als4000_capture_open(struct snd_pcm_substream *substream) 465{ 466 struct snd_sb *chip = snd_pcm_substream_chip(substream); 467 struct snd_pcm_runtime *runtime = substream->runtime; 468 469 chip->capture_substream = substream; 470 runtime->hw = snd_als4000_capture; 471 return 0; 472} 473 474static int snd_als4000_capture_close(struct snd_pcm_substream *substream) 475{ 476 struct snd_sb *chip = snd_pcm_substream_chip(substream); 477 478 chip->capture_substream = NULL; 479 snd_pcm_lib_free_pages(substream); 480 return 0; 481} 482 483/******************************************************************/ 484 485static struct snd_pcm_ops snd_als4000_playback_ops = { 486 .open = snd_als4000_playback_open, 487 .close = snd_als4000_playback_close, 488 .ioctl = snd_pcm_lib_ioctl, 489 .hw_params = snd_als4000_hw_params, 490 .hw_free = snd_als4000_hw_free, 491 .prepare = snd_als4000_playback_prepare, 492 .trigger = snd_als4000_playback_trigger, 493 .pointer = snd_als4000_playback_pointer 494}; 495 496static struct snd_pcm_ops snd_als4000_capture_ops = { 497 .open = snd_als4000_capture_open, 498 .close = snd_als4000_capture_close, 499 .ioctl = snd_pcm_lib_ioctl, 500 .hw_params = snd_als4000_hw_params, 501 .hw_free = snd_als4000_hw_free, 502 .prepare = snd_als4000_capture_prepare, 503 .trigger = snd_als4000_capture_trigger, 504 .pointer = snd_als4000_capture_pointer 505}; 506 507static int __devinit snd_als4000_pcm(struct snd_sb *chip, int device) 508{ 509 struct snd_pcm *pcm; 510 int err; 511 512 if ((err = snd_pcm_new(chip->card, "ALS4000 DSP", device, 1, 1, &pcm)) < 0) 513 return err; 514 pcm->private_data = chip; 515 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; 516 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_als4000_playback_ops); 517 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_als4000_capture_ops); 518 519 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), 520 64*1024, 64*1024); 521 522 chip->pcm = pcm; 523 524 return 0; 525} 526 527/******************************************************************/ 528 529static void snd_als4000_set_addr(unsigned long gcr, 530 unsigned int sb, 531 unsigned int mpu, 532 unsigned int opl, 533 unsigned int game) 534{ 535 u32 confA = 0; 536 u32 confB = 0; 537 538 if (mpu > 0) 539 confB |= (mpu | 1) << 16; 540 if (sb > 0) 541 confB |= (sb | 1); 542 if (game > 0) 543 confA |= (game | 1) << 16; 544 if (opl > 0) 545 confA |= (opl | 1); 546 snd_als4000_gcr_write_addr(gcr, 0xa8, confA); 547 snd_als4000_gcr_write_addr(gcr, 0xa9, confB); 548} 549 550static void snd_als4000_configure(struct snd_sb *chip) 551{ 552 unsigned tmp; 553 int i; 554 555 /* do some more configuration */ 556 spin_lock_irq(&chip->mixer_lock); 557 tmp = snd_sbmixer_read(chip, 0xc0); 558 snd_sbmixer_write(chip, 0xc0, tmp|0x80); 559 /* always select DMA channel 0, since we do not actually use DMA */ 560 snd_sbmixer_write(chip, SB_DSP4_DMASETUP, SB_DMASETUP_DMA0); 561 snd_sbmixer_write(chip, 0xc0, tmp&0x7f); 562 spin_unlock_irq(&chip->mixer_lock); 563 564 spin_lock_irq(&chip->reg_lock); 565 /* magic number. Enables interrupts(?) */ 566 snd_als4000_gcr_write(chip, 0x8c, 0x28000); 567 for(i = 0x91; i <= 0x96; ++i) 568 snd_als4000_gcr_write(chip, i, 0); 569 570 snd_als4000_gcr_write(chip, 0x99, snd_als4000_gcr_read(chip, 0x99)); 571 spin_unlock_irq(&chip->reg_lock); 572} 573 574#ifdef SUPPORT_JOYSTICK 575static int __devinit snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev) 576{ 577 struct gameport *gp; 578 struct resource *r; 579 int io_port; 580 581 if (joystick_port[dev] == 0) 582 return -ENODEV; 583 584 if (joystick_port[dev] == 1) { /* auto-detect */ 585 for (io_port = 0x200; io_port <= 0x218; io_port += 8) { 586 r = request_region(io_port, 8, "ALS4000 gameport"); 587 if (r) 588 break; 589 } 590 } else { 591 io_port = joystick_port[dev]; 592 r = request_region(io_port, 8, "ALS4000 gameport"); 593 } 594 595 if (!r) { 596 printk(KERN_WARNING "als4000: cannot reserve joystick ports\n"); 597 return -EBUSY; 598 } 599 600 acard->gameport = gp = gameport_allocate_port(); 601 if (!gp) { 602 printk(KERN_ERR "als4000: cannot allocate memory for gameport\n"); 603 release_and_free_resource(r); 604 return -ENOMEM; 605 } 606 607 gameport_set_name(gp, "ALS4000 Gameport"); 608 gameport_set_phys(gp, "pci%s/gameport0", pci_name(acard->pci)); 609 gameport_set_dev_parent(gp, &acard->pci->dev); 610 gp->io = io_port; 611 gameport_set_port_data(gp, r); 612 613 /* Enable legacy joystick port */ 614 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 1); 615 616 gameport_register_port(acard->gameport); 617 618 return 0; 619} 620 621static void snd_als4000_free_gameport(struct snd_card_als4000 *acard) 622{ 623 if (acard->gameport) { 624 struct resource *r = gameport_get_port_data(acard->gameport); 625 626 gameport_unregister_port(acard->gameport); 627 acard->gameport = NULL; 628 629 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0); /* disable joystick */ 630 release_and_free_resource(r); 631 } 632} 633#else 634static inline int snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev) { return -ENOSYS; } 635static inline void snd_als4000_free_gameport(struct snd_card_als4000 *acard) { } 636#endif 637 638static void snd_card_als4000_free( struct snd_card *card ) 639{ 640 struct snd_card_als4000 * acard = (struct snd_card_als4000 *)card->private_data; 641 642 /* make sure that interrupts are disabled */ 643 snd_als4000_gcr_write_addr( acard->gcr, 0x8c, 0); 644 /* free resources */ 645 snd_als4000_free_gameport(acard); 646 pci_release_regions(acard->pci); 647 pci_disable_device(acard->pci); 648} 649 650static int __devinit snd_card_als4000_probe(struct pci_dev *pci, 651 const struct pci_device_id *pci_id) 652{ 653 static int dev; 654 struct snd_card *card; 655 struct snd_card_als4000 *acard; 656 unsigned long gcr; 657 struct snd_sb *chip; 658 struct snd_opl3 *opl3; 659 unsigned short word; 660 int err; 661 662 if (dev >= SNDRV_CARDS) 663 return -ENODEV; 664 if (!enable[dev]) { 665 dev++; 666 return -ENOENT; 667 } 668 669 /* enable PCI device */ 670 if ((err = pci_enable_device(pci)) < 0) { 671 return err; 672 } 673 /* check, if we can restrict PCI DMA transfers to 24 bits */ 674 if (pci_set_dma_mask(pci, DMA_24BIT_MASK) < 0 || 675 pci_set_consistent_dma_mask(pci, DMA_24BIT_MASK) < 0) { 676 snd_printk(KERN_ERR "architecture does not support 24bit PCI busmaster DMA\n"); 677 pci_disable_device(pci); 678 return -ENXIO; 679 } 680 681 if ((err = pci_request_regions(pci, "ALS4000")) < 0) { 682 pci_disable_device(pci); 683 return err; 684 } 685 gcr = pci_resource_start(pci, 0); 686 687 pci_read_config_word(pci, PCI_COMMAND, &word); 688 pci_write_config_word(pci, PCI_COMMAND, word | PCI_COMMAND_IO); 689 pci_set_master(pci); 690 691 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 692 sizeof( struct snd_card_als4000 ) ); 693 if (card == NULL) { 694 pci_release_regions(pci); 695 pci_disable_device(pci); 696 return -ENOMEM; 697 } 698 699 acard = (struct snd_card_als4000 *)card->private_data; 700 acard->pci = pci; 701 acard->gcr = gcr; 702 card->private_free = snd_card_als4000_free; 703 704 /* disable all legacy ISA stuff */ 705 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0); 706 707 if ((err = snd_sbdsp_create(card, 708 gcr + 0x10, 709 pci->irq, 710 snd_als4000_interrupt, 711 -1, 712 -1, 713 SB_HW_ALS4000, 714 &chip)) < 0) { 715 goto out_err; 716 } 717 acard->chip = chip; 718 719 chip->pci = pci; 720 chip->alt_port = gcr; 721 snd_card_set_dev(card, &pci->dev); 722 723 snd_als4000_configure(chip); 724 725 strcpy(card->driver, "ALS4000"); 726 strcpy(card->shortname, "Avance Logic ALS4000"); 727 sprintf(card->longname, "%s at 0x%lx, irq %i", 728 card->shortname, chip->alt_port, chip->irq); 729 730 if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_ALS4000, 731 gcr+0x30, MPU401_INFO_INTEGRATED, 732 pci->irq, 0, &chip->rmidi)) < 0) { 733 printk(KERN_ERR "als4000: no MPU-401 device at 0x%lx?\n", gcr+0x30); 734 goto out_err; 735 } 736 737 if ((err = snd_als4000_pcm(chip, 0)) < 0) { 738 goto out_err; 739 } 740 if ((err = snd_sbmixer_new(chip)) < 0) { 741 goto out_err; 742 } 743 744 if (snd_opl3_create(card, gcr+0x10, gcr+0x12, 745 OPL3_HW_AUTO, 1, &opl3) < 0) { 746 printk(KERN_ERR "als4000: no OPL device at 0x%lx-0x%lx?\n", 747 gcr+0x10, gcr+0x12 ); 748 } else { 749 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) { 750 goto out_err; 751 } 752 } 753 754 snd_als4000_create_gameport(acard, dev); 755 756 if ((err = snd_card_register(card)) < 0) { 757 goto out_err; 758 } 759 pci_set_drvdata(pci, card); 760 dev++; 761 err = 0; 762 goto out; 763 764out_err: 765 snd_card_free(card); 766 767out: 768 return err; 769} 770 771static void __devexit snd_card_als4000_remove(struct pci_dev *pci) 772{ 773 snd_card_free(pci_get_drvdata(pci)); 774 pci_set_drvdata(pci, NULL); 775} 776 777#ifdef CONFIG_PM 778static int snd_als4000_suspend(struct pci_dev *pci, pm_message_t state) 779{ 780 struct snd_card *card = pci_get_drvdata(pci); 781 struct snd_card_als4000 *acard = card->private_data; 782 struct snd_sb *chip = acard->chip; 783 784 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 785 786 snd_pcm_suspend_all(chip->pcm); 787 snd_sbmixer_suspend(chip); 788 789 pci_disable_device(pci); 790 pci_save_state(pci); 791 pci_set_power_state(pci, pci_choose_state(pci, state)); 792 return 0; 793} 794 795static int snd_als4000_resume(struct pci_dev *pci) 796{ 797 struct snd_card *card = pci_get_drvdata(pci); 798 struct snd_card_als4000 *acard = card->private_data; 799 struct snd_sb *chip = acard->chip; 800 801 pci_set_power_state(pci, PCI_D0); 802 pci_restore_state(pci); 803 if (pci_enable_device(pci) < 0) { 804 printk(KERN_ERR "als4000: pci_enable_device failed, " 805 "disabling device\n"); 806 snd_card_disconnect(card); 807 return -EIO; 808 } 809 pci_set_master(pci); 810 811 snd_als4000_configure(chip); 812 snd_sbdsp_reset(chip); 813 snd_sbmixer_resume(chip); 814 815#ifdef SUPPORT_JOYSTICK 816 if (acard->gameport) 817 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 1); 818#endif 819 820 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 821 return 0; 822} 823#endif 824 825 826static struct pci_driver driver = { 827 .name = "ALS4000", 828 .id_table = snd_als4000_ids, 829 .probe = snd_card_als4000_probe, 830 .remove = __devexit_p(snd_card_als4000_remove), 831#ifdef CONFIG_PM 832 .suspend = snd_als4000_suspend, 833 .resume = snd_als4000_resume, 834#endif 835}; 836 837static int __init alsa_card_als4000_init(void) 838{ 839 return pci_register_driver(&driver); 840} 841 842static void __exit alsa_card_als4000_exit(void) 843{ 844 pci_unregister_driver(&driver); 845} 846 847module_init(alsa_card_als4000_init) 848module_exit(alsa_card_als4000_exit) 849