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 82 MODULE_AUTHOR("Bart Hartgers <bart@etpmod.phys.tue.nl>"); 83 MODULE_DESCRIPTION("Avance Logic ALS4000"); 84 MODULE_LICENSE("GPL"); 85 MODULE_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 91 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 92 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 93 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ 94 #ifdef SUPPORT_JOYSTICK 95 static int joystick_port[SNDRV_CARDS]; 96 #endif 97 98 module_param_array(index, int, NULL, 0444); 99 MODULE_PARM_DESC(index, "Index value for ALS4000 soundcard."); 100 module_param_array(id, charp, NULL, 0444); 101 MODULE_PARM_DESC(id, "ID string for ALS4000 soundcard."); 102 module_param_array(enable, bool, NULL, 0444); 103 MODULE_PARM_DESC(enable, "Enable ALS4000 soundcard."); 104 #ifdef SUPPORT_JOYSTICK 105 module_param_array(joystick_port, int, NULL, 0444); 106 MODULE_PARM_DESC(joystick_port, "Joystick port address for ALS4000 soundcard. (0 = disabled)"); 107 #endif 108 109 struct 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 }; 118 119 static struct pci_device_id snd_als4000_ids[] = { 120 { 0x4005, 0x4000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* ALS4000 */ 121 { 0, } 122 }; 123 124 MODULE_DEVICE_TABLE(pci, snd_als4000_ids); 125 126 static 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 } 131 132 static 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 } 136 137 static inline u32 snd_als4000_gcr_read_addr(unsigned long port, u32 reg) 138 { 139 outb(reg, port+0x0c); 140 return inl(port+0x08); 141 } 142 143 static 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 } 147 148 static 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 } 156 157 static 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 } 163 164 static 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) 174 175 static 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 */ 190 static 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 */ 213 enum { CMD_WIDTH8=0x04, CMD_SIGNED=0x10, CMD_MONO=0x80, CMD_STEREO=0xA0 }; 214 static const unsigned char capture_cmd_vals[]= 215 { 216 CMD_WIDTH8|CMD_MONO, /* ALS4000_FORMAT_U8_MONO */ 217 CMD_WIDTH8|CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S8_MONO */ 218 CMD_MONO, /* ALS4000_FORMAT_U16L_MONO */ 219 CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S16L_MONO */ 220 CMD_WIDTH8|CMD_STEREO, /* ALS4000_FORMAT_U8_STEREO */ 221 CMD_WIDTH8|CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S8_STEREO */ 222 CMD_STEREO, /* ALS4000_FORMAT_U16L_STEREO */ 223 CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S16L_STEREO */ 224 }; 225 #define capture_cmd(chip) (capture_cmd_vals[(chip)->capture_format]) 226 227 static 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 } 232 233 static int snd_als4000_hw_free(struct snd_pcm_substream *substream) 234 { 235 snd_pcm_lib_free_pages(substream); 236 return 0; 237 } 238 239 static 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 } 265 266 static 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 /* FIXME: from second playback on, there's a lot more clicks and pops 283 * involved here than on first playback. Fiddling with 284 * tons of different settings didn't help (DMA, speaker on/off, 285 * reordering, ...). Something seems to get enabled on playback 286 * that I haven't found out how to disable again, which then causes 287 * the switching pops to reach the speakers the next time here. */ 288 spin_lock_irq(&chip->reg_lock); 289 snd_als4000_set_rate(chip, runtime->rate); 290 snd_als4000_set_playback_dma(chip, runtime->dma_addr, size); 291 292 /* SPEAKER_ON not needed, since dma_on seems to also enable speaker */ 293 /* snd_sbdsp_command(chip, SB_DSP_SPEAKER_ON); */ 294 snd_sbdsp_command(chip, playback_cmd(chip).dsp_cmd); 295 snd_sbdsp_command(chip, playback_cmd(chip).format); 296 snd_sbdsp_command(chip, count); 297 snd_sbdsp_command(chip, count>>8); 298 snd_sbdsp_command(chip, playback_cmd(chip).dma_off); 299 spin_unlock_irq(&chip->reg_lock); 300 301 return 0; 302 } 303 304 static int snd_als4000_capture_trigger(struct snd_pcm_substream *substream, int cmd) 305 { 306 struct snd_sb *chip = snd_pcm_substream_chip(substream); 307 int result = 0; 308 309 spin_lock(&chip->mixer_lock); 310 switch (cmd) { 311 case SNDRV_PCM_TRIGGER_START: 312 case SNDRV_PCM_TRIGGER_RESUME: 313 chip->mode |= SB_RATE_LOCK_CAPTURE; 314 snd_sbmixer_write(chip, 0xde, capture_cmd(chip)); 315 break; 316 case SNDRV_PCM_TRIGGER_STOP: 317 case SNDRV_PCM_TRIGGER_SUSPEND: 318 chip->mode &= ~SB_RATE_LOCK_CAPTURE; 319 snd_sbmixer_write(chip, 0xde, 0); 320 break; 321 default: 322 result = -EINVAL; 323 break; 324 } 325 spin_unlock(&chip->mixer_lock); 326 return result; 327 } 328 329 static int snd_als4000_playback_trigger(struct snd_pcm_substream *substream, int cmd) 330 { 331 struct snd_sb *chip = snd_pcm_substream_chip(substream); 332 int result = 0; 333 334 spin_lock(&chip->reg_lock); 335 switch (cmd) { 336 case SNDRV_PCM_TRIGGER_START: 337 case SNDRV_PCM_TRIGGER_RESUME: 338 chip->mode |= SB_RATE_LOCK_PLAYBACK; 339 snd_sbdsp_command(chip, playback_cmd(chip).dma_on); 340 break; 341 case SNDRV_PCM_TRIGGER_STOP: 342 case SNDRV_PCM_TRIGGER_SUSPEND: 343 snd_sbdsp_command(chip, playback_cmd(chip).dma_off); 344 chip->mode &= ~SB_RATE_LOCK_PLAYBACK; 345 break; 346 default: 347 result = -EINVAL; 348 break; 349 } 350 spin_unlock(&chip->reg_lock); 351 return result; 352 } 353 354 static snd_pcm_uframes_t snd_als4000_capture_pointer(struct snd_pcm_substream *substream) 355 { 356 struct snd_sb *chip = snd_pcm_substream_chip(substream); 357 unsigned int result; 358 359 spin_lock(&chip->reg_lock); 360 result = snd_als4000_gcr_read(chip, 0xa4) & 0xffff; 361 spin_unlock(&chip->reg_lock); 362 return bytes_to_frames( substream->runtime, result ); 363 } 364 365 static snd_pcm_uframes_t snd_als4000_playback_pointer(struct snd_pcm_substream *substream) 366 { 367 struct snd_sb *chip = snd_pcm_substream_chip(substream); 368 unsigned result; 369 370 spin_lock(&chip->reg_lock); 371 result = snd_als4000_gcr_read(chip, 0xa0) & 0xffff; 372 spin_unlock(&chip->reg_lock); 373 return bytes_to_frames( substream->runtime, result ); 374 } 375 376 /* FIXME: this IRQ routine doesn't really support IRQ sharing (we always 377 * return IRQ_HANDLED no matter whether we actually had an IRQ flag or not). 378 * ALS4000a.PDF writes that while ACKing IRQ in PCI block will *not* ACK 379 * the IRQ in the SB core, ACKing IRQ in SB block *will* ACK the PCI IRQ 380 * register (alt_port + 0x0e). Probably something could be optimized here to 381 * query/write one register only... 382 * And even if both registers need to be queried, then there's still the 383 * question of whether it's actually correct to ACK PCI IRQ before reading 384 * SB IRQ like we do now, since ALS4000a.PDF mentions that PCI IRQ will *clear* 385 * SB IRQ status. 386 * And do we *really* need the lock here for *reading* SB_DSP4_IRQSTATUS?? 387 * */ 388 static irqreturn_t snd_als4000_interrupt(int irq, void *dev_id) 389 { 390 struct snd_sb *chip = dev_id; 391 unsigned gcr_status; 392 unsigned sb_status; 393 394 /* find out which bit of the ALS4000 produced the interrupt */ 395 gcr_status = inb(chip->alt_port + 0xe); 396 397 if ((gcr_status & 0x80) && (chip->playback_substream)) /* playback */ 398 snd_pcm_period_elapsed(chip->playback_substream); 399 if ((gcr_status & 0x40) && (chip->capture_substream)) /* capturing */ 400 snd_pcm_period_elapsed(chip->capture_substream); 401 if ((gcr_status & 0x10) && (chip->rmidi)) /* MPU401 interrupt */ 402 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data); 403 /* release the gcr */ 404 outb(gcr_status, chip->alt_port + 0xe); 405 406 spin_lock(&chip->mixer_lock); 407 sb_status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS); 408 spin_unlock(&chip->mixer_lock); 409 410 if (sb_status & SB_IRQTYPE_8BIT) 411 snd_sb_ack_8bit(chip); 412 if (sb_status & SB_IRQTYPE_16BIT) 413 snd_sb_ack_16bit(chip); 414 if (sb_status & SB_IRQTYPE_MPUIN) 415 inb(chip->mpu_port); 416 if (sb_status & 0x20) 417 inb(SBP(chip, RESET)); 418 return IRQ_HANDLED; 419 } 420 421 /*****************************************************************/ 422 423 static struct snd_pcm_hardware snd_als4000_playback = 424 { 425 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 426 SNDRV_PCM_INFO_MMAP_VALID), 427 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | 428 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */ 429 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 430 .rate_min = 4000, 431 .rate_max = 48000, 432 .channels_min = 1, 433 .channels_max = 2, 434 .buffer_bytes_max = 65536, 435 .period_bytes_min = 64, 436 .period_bytes_max = 65536, 437 .periods_min = 1, 438 .periods_max = 1024, 439 .fifo_size = 0 440 }; 441 442 static struct snd_pcm_hardware snd_als4000_capture = 443 { 444 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 445 SNDRV_PCM_INFO_MMAP_VALID), 446 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | 447 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */ 448 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 449 .rate_min = 4000, 450 .rate_max = 48000, 451 .channels_min = 1, 452 .channels_max = 2, 453 .buffer_bytes_max = 65536, 454 .period_bytes_min = 64, 455 .period_bytes_max = 65536, 456 .periods_min = 1, 457 .periods_max = 1024, 458 .fifo_size = 0 459 }; 460 461 /*****************************************************************/ 462 463 static int snd_als4000_playback_open(struct snd_pcm_substream *substream) 464 { 465 struct snd_sb *chip = snd_pcm_substream_chip(substream); 466 struct snd_pcm_runtime *runtime = substream->runtime; 467 468 chip->playback_substream = substream; 469 runtime->hw = snd_als4000_playback; 470 return 0; 471 } 472 473 static int snd_als4000_playback_close(struct snd_pcm_substream *substream) 474 { 475 struct snd_sb *chip = snd_pcm_substream_chip(substream); 476 477 chip->playback_substream = NULL; 478 snd_pcm_lib_free_pages(substream); 479 return 0; 480 } 481 482 static int snd_als4000_capture_open(struct snd_pcm_substream *substream) 483 { 484 struct snd_sb *chip = snd_pcm_substream_chip(substream); 485 struct snd_pcm_runtime *runtime = substream->runtime; 486 487 chip->capture_substream = substream; 488 runtime->hw = snd_als4000_capture; 489 return 0; 490 } 491 492 static int snd_als4000_capture_close(struct snd_pcm_substream *substream) 493 { 494 struct snd_sb *chip = snd_pcm_substream_chip(substream); 495 496 chip->capture_substream = NULL; 497 snd_pcm_lib_free_pages(substream); 498 return 0; 499 } 500 501 /******************************************************************/ 502 503 static struct snd_pcm_ops snd_als4000_playback_ops = { 504 .open = snd_als4000_playback_open, 505 .close = snd_als4000_playback_close, 506 .ioctl = snd_pcm_lib_ioctl, 507 .hw_params = snd_als4000_hw_params, 508 .hw_free = snd_als4000_hw_free, 509 .prepare = snd_als4000_playback_prepare, 510 .trigger = snd_als4000_playback_trigger, 511 .pointer = snd_als4000_playback_pointer 512 }; 513 514 static struct snd_pcm_ops snd_als4000_capture_ops = { 515 .open = snd_als4000_capture_open, 516 .close = snd_als4000_capture_close, 517 .ioctl = snd_pcm_lib_ioctl, 518 .hw_params = snd_als4000_hw_params, 519 .hw_free = snd_als4000_hw_free, 520 .prepare = snd_als4000_capture_prepare, 521 .trigger = snd_als4000_capture_trigger, 522 .pointer = snd_als4000_capture_pointer 523 }; 524 525 static int __devinit snd_als4000_pcm(struct snd_sb *chip, int device) 526 { 527 struct snd_pcm *pcm; 528 int err; 529 530 if ((err = snd_pcm_new(chip->card, "ALS4000 DSP", device, 1, 1, &pcm)) < 0) 531 return err; 532 pcm->private_data = chip; 533 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; 534 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_als4000_playback_ops); 535 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_als4000_capture_ops); 536 537 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), 538 64*1024, 64*1024); 539 540 chip->pcm = pcm; 541 542 return 0; 543 } 544 545 /******************************************************************/ 546 547 static void snd_als4000_set_addr(unsigned long gcr, 548 unsigned int sb, 549 unsigned int mpu, 550 unsigned int opl, 551 unsigned int game) 552 { 553 u32 confA = 0; 554 u32 confB = 0; 555 556 if (mpu > 0) 557 confB |= (mpu | 1) << 16; 558 if (sb > 0) 559 confB |= (sb | 1); 560 if (game > 0) 561 confA |= (game | 1) << 16; 562 if (opl > 0) 563 confA |= (opl | 1); 564 snd_als4000_gcr_write_addr(gcr, 0xa8, confA); 565 snd_als4000_gcr_write_addr(gcr, 0xa9, confB); 566 } 567 568 static void snd_als4000_configure(struct snd_sb *chip) 569 { 570 unsigned tmp; 571 int i; 572 573 /* do some more configuration */ 574 spin_lock_irq(&chip->mixer_lock); 575 tmp = snd_sbmixer_read(chip, 0xc0); 576 snd_sbmixer_write(chip, 0xc0, tmp|0x80); 577 /* always select DMA channel 0, since we do not actually use DMA */ 578 snd_sbmixer_write(chip, SB_DSP4_DMASETUP, SB_DMASETUP_DMA0); 579 snd_sbmixer_write(chip, 0xc0, tmp&0x7f); 580 spin_unlock_irq(&chip->mixer_lock); 581 582 spin_lock_irq(&chip->reg_lock); 583 /* magic number. Enables interrupts(?) */ 584 snd_als4000_gcr_write(chip, 0x8c, 0x28000); 585 for(i = 0x91; i <= 0x96; ++i) 586 snd_als4000_gcr_write(chip, i, 0); 587 588 snd_als4000_gcr_write(chip, 0x99, snd_als4000_gcr_read(chip, 0x99)); 589 spin_unlock_irq(&chip->reg_lock); 590 } 591 592 #ifdef SUPPORT_JOYSTICK 593 static int __devinit snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev) 594 { 595 struct gameport *gp; 596 struct resource *r; 597 int io_port; 598 599 if (joystick_port[dev] == 0) 600 return -ENODEV; 601 602 if (joystick_port[dev] == 1) { /* auto-detect */ 603 for (io_port = 0x200; io_port <= 0x218; io_port += 8) { 604 r = request_region(io_port, 8, "ALS4000 gameport"); 605 if (r) 606 break; 607 } 608 } else { 609 io_port = joystick_port[dev]; 610 r = request_region(io_port, 8, "ALS4000 gameport"); 611 } 612 613 if (!r) { 614 printk(KERN_WARNING "als4000: cannot reserve joystick ports\n"); 615 return -EBUSY; 616 } 617 618 acard->gameport = gp = gameport_allocate_port(); 619 if (!gp) { 620 printk(KERN_ERR "als4000: cannot allocate memory for gameport\n"); 621 release_and_free_resource(r); 622 return -ENOMEM; 623 } 624 625 gameport_set_name(gp, "ALS4000 Gameport"); 626 gameport_set_phys(gp, "pci%s/gameport0", pci_name(acard->pci)); 627 gameport_set_dev_parent(gp, &acard->pci->dev); 628 gp->io = io_port; 629 gameport_set_port_data(gp, r); 630 631 /* Enable legacy joystick port */ 632 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 1); 633 634 gameport_register_port(acard->gameport); 635 636 return 0; 637 } 638 639 static void snd_als4000_free_gameport(struct snd_card_als4000 *acard) 640 { 641 if (acard->gameport) { 642 struct resource *r = gameport_get_port_data(acard->gameport); 643 644 gameport_unregister_port(acard->gameport); 645 acard->gameport = NULL; 646 647 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0); /* disable joystick */ 648 release_and_free_resource(r); 649 } 650 } 651 #else 652 static inline int snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev) { return -ENOSYS; } 653 static inline void snd_als4000_free_gameport(struct snd_card_als4000 *acard) { } 654 #endif 655 656 static void snd_card_als4000_free( struct snd_card *card ) 657 { 658 struct snd_card_als4000 * acard = (struct snd_card_als4000 *)card->private_data; 659 660 /* make sure that interrupts are disabled */ 661 snd_als4000_gcr_write_addr( acard->gcr, 0x8c, 0); 662 /* free resources */ 663 snd_als4000_free_gameport(acard); 664 pci_release_regions(acard->pci); 665 pci_disable_device(acard->pci); 666 } 667 668 static int __devinit snd_card_als4000_probe(struct pci_dev *pci, 669 const struct pci_device_id *pci_id) 670 { 671 static int dev; 672 struct snd_card *card; 673 struct snd_card_als4000 *acard; 674 unsigned long gcr; 675 struct snd_sb *chip; 676 struct snd_opl3 *opl3; 677 unsigned short word; 678 int err; 679 680 if (dev >= SNDRV_CARDS) 681 return -ENODEV; 682 if (!enable[dev]) { 683 dev++; 684 return -ENOENT; 685 } 686 687 /* enable PCI device */ 688 if ((err = pci_enable_device(pci)) < 0) { 689 return err; 690 } 691 /* check, if we can restrict PCI DMA transfers to 24 bits */ 692 if (pci_set_dma_mask(pci, DMA_24BIT_MASK) < 0 || 693 pci_set_consistent_dma_mask(pci, DMA_24BIT_MASK) < 0) { 694 snd_printk(KERN_ERR "architecture does not support 24bit PCI busmaster DMA\n"); 695 pci_disable_device(pci); 696 return -ENXIO; 697 } 698 699 if ((err = pci_request_regions(pci, "ALS4000")) < 0) { 700 pci_disable_device(pci); 701 return err; 702 } 703 gcr = pci_resource_start(pci, 0); 704 705 pci_read_config_word(pci, PCI_COMMAND, &word); 706 pci_write_config_word(pci, PCI_COMMAND, word | PCI_COMMAND_IO); 707 pci_set_master(pci); 708 709 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 710 sizeof( struct snd_card_als4000 ) ); 711 if (card == NULL) { 712 pci_release_regions(pci); 713 pci_disable_device(pci); 714 return -ENOMEM; 715 } 716 717 acard = (struct snd_card_als4000 *)card->private_data; 718 acard->pci = pci; 719 acard->gcr = gcr; 720 card->private_free = snd_card_als4000_free; 721 722 /* disable all legacy ISA stuff */ 723 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0); 724 725 if ((err = snd_sbdsp_create(card, 726 gcr + 0x10, 727 pci->irq, 728 snd_als4000_interrupt, 729 -1, 730 -1, 731 SB_HW_ALS4000, 732 &chip)) < 0) { 733 goto out_err; 734 } 735 acard->chip = chip; 736 737 chip->pci = pci; 738 chip->alt_port = gcr; 739 snd_card_set_dev(card, &pci->dev); 740 741 snd_als4000_configure(chip); 742 743 strcpy(card->driver, "ALS4000"); 744 strcpy(card->shortname, "Avance Logic ALS4000"); 745 sprintf(card->longname, "%s at 0x%lx, irq %i", 746 card->shortname, chip->alt_port, chip->irq); 747 748 if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_ALS4000, 749 gcr+0x30, MPU401_INFO_INTEGRATED, 750 pci->irq, 0, &chip->rmidi)) < 0) { 751 printk(KERN_ERR "als4000: no MPU-401 device at 0x%lx?\n", gcr+0x30); 752 goto out_err; 753 } 754 755 if ((err = snd_als4000_pcm(chip, 0)) < 0) { 756 goto out_err; 757 } 758 if ((err = snd_sbmixer_new(chip)) < 0) { 759 goto out_err; 760 } 761 762 if (snd_opl3_create(card, gcr+0x10, gcr+0x12, 763 OPL3_HW_AUTO, 1, &opl3) < 0) { 764 printk(KERN_ERR "als4000: no OPL device at 0x%lx-0x%lx?\n", 765 gcr+0x10, gcr+0x12 ); 766 } else { 767 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) { 768 goto out_err; 769 } 770 } 771 772 snd_als4000_create_gameport(acard, dev); 773 774 if ((err = snd_card_register(card)) < 0) { 775 goto out_err; 776 } 777 pci_set_drvdata(pci, card); 778 dev++; 779 err = 0; 780 goto out; 781 782 out_err: 783 snd_card_free(card); 784 785 out: 786 return err; 787 } 788 789 static void __devexit snd_card_als4000_remove(struct pci_dev *pci) 790 { 791 snd_card_free(pci_get_drvdata(pci)); 792 pci_set_drvdata(pci, NULL); 793 } 794 795 #ifdef CONFIG_PM 796 static int snd_als4000_suspend(struct pci_dev *pci, pm_message_t state) 797 { 798 struct snd_card *card = pci_get_drvdata(pci); 799 struct snd_card_als4000 *acard = card->private_data; 800 struct snd_sb *chip = acard->chip; 801 802 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 803 804 snd_pcm_suspend_all(chip->pcm); 805 snd_sbmixer_suspend(chip); 806 807 pci_disable_device(pci); 808 pci_save_state(pci); 809 pci_set_power_state(pci, pci_choose_state(pci, state)); 810 return 0; 811 } 812 813 static int snd_als4000_resume(struct pci_dev *pci) 814 { 815 struct snd_card *card = pci_get_drvdata(pci); 816 struct snd_card_als4000 *acard = card->private_data; 817 struct snd_sb *chip = acard->chip; 818 819 pci_set_power_state(pci, PCI_D0); 820 pci_restore_state(pci); 821 if (pci_enable_device(pci) < 0) { 822 printk(KERN_ERR "als4000: pci_enable_device failed, " 823 "disabling device\n"); 824 snd_card_disconnect(card); 825 return -EIO; 826 } 827 pci_set_master(pci); 828 829 snd_als4000_configure(chip); 830 snd_sbdsp_reset(chip); 831 snd_sbmixer_resume(chip); 832 833 #ifdef SUPPORT_JOYSTICK 834 if (acard->gameport) 835 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 1); 836 #endif 837 838 snd_power_change_state(card, SNDRV_CTL_POWER_D0); 839 return 0; 840 } 841 #endif 842 843 844 static struct pci_driver driver = { 845 .name = "ALS4000", 846 .id_table = snd_als4000_ids, 847 .probe = snd_card_als4000_probe, 848 .remove = __devexit_p(snd_card_als4000_remove), 849 #ifdef CONFIG_PM 850 .suspend = snd_als4000_suspend, 851 .resume = snd_als4000_resume, 852 #endif 853 }; 854 855 static int __init alsa_card_als4000_init(void) 856 { 857 return pci_register_driver(&driver); 858 } 859 860 static void __exit alsa_card_als4000_exit(void) 861 { 862 pci_unregister_driver(&driver); 863 } 864 865 module_init(alsa_card_als4000_init) 866 module_exit(alsa_card_als4000_exit) 867