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 * NOTES 10 * 11 * Since Avance does not provide any meaningful documentation, and I 12 * bought an ALS4000 based soundcard, I was forced to base this driver 13 * on reverse engineering. 14 * 15 * Note: this is no longer true. Pretty verbose chip docu (ALS4000a.PDF) 16 * can be found on the ALSA web site. 17 * 18 * The ALS4000 seems to be the PCI-cousin of the ALS100. It contains an 19 * ALS100-like SB DSP/mixer, an OPL3 synth, a MPU401 and a gameport 20 * interface. These subsystems can be mapped into ISA io-port space, 21 * using the PCI-interface. In addition, the PCI-bit provides DMA and IRQ 22 * services to the subsystems. 23 * 24 * While ALS4000 is very similar to a SoundBlaster, the differences in 25 * DMA and capturing require more changes to the SoundBlaster than 26 * desirable, so I made this separate driver. 27 * 28 * The ALS4000 can do real full duplex playback/capture. 29 * 30 * FMDAC: 31 * - 0x4f -> port 0x14 32 * - port 0x15 |= 1 33 * 34 * Enable/disable 3D sound: 35 * - 0x50 -> port 0x14 36 * - change bit 6 (0x40) of port 0x15 37 * 38 * Set QSound: 39 * - 0xdb -> port 0x14 40 * - set port 0x15: 41 * 0x3e (mode 3), 0x3c (mode 2), 0x3a (mode 1), 0x38 (mode 0) 42 * 43 * Set KSound: 44 * - value -> some port 0x0c0d 45 * 46 * This program is free software; you can redistribute it and/or modify 47 * it under the terms of the GNU General Public License as published by 48 * the Free Software Foundation; either version 2 of the License, or 49 * (at your option) any later version. 50 * 51 * This program is distributed in the hope that it will be useful, 52 * but WITHOUT ANY WARRANTY; without even the implied warranty of 53 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 54 * GNU General Public License for more details. 55 56 * You should have received a copy of the GNU General Public License 57 * along with this program; if not, write to the Free Software 58 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 59 */ 60 61 #include <sound/driver.h> 62 #include <asm/io.h> 63 #include <linux/init.h> 64 #include <linux/pci.h> 65 #include <linux/slab.h> 66 #include <linux/gameport.h> 67 #include <linux/moduleparam.h> 68 #include <sound/core.h> 69 #include <sound/pcm.h> 70 #include <sound/rawmidi.h> 71 #include <sound/mpu401.h> 72 #include <sound/opl3.h> 73 #include <sound/sb.h> 74 #include <sound/initval.h> 75 76 MODULE_AUTHOR("Bart Hartgers <bart@etpmod.phys.tue.nl>"); 77 MODULE_DESCRIPTION("Avance Logic ALS4000"); 78 MODULE_LICENSE("GPL"); 79 MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS4000}}"); 80 81 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE)) 82 #define SUPPORT_JOYSTICK 1 83 #endif 84 85 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ 86 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ 87 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ 88 #ifdef SUPPORT_JOYSTICK 89 static int joystick_port[SNDRV_CARDS]; 90 #endif 91 92 module_param_array(index, int, NULL, 0444); 93 MODULE_PARM_DESC(index, "Index value for ALS4000 soundcard."); 94 module_param_array(id, charp, NULL, 0444); 95 MODULE_PARM_DESC(id, "ID string for ALS4000 soundcard."); 96 module_param_array(enable, bool, NULL, 0444); 97 MODULE_PARM_DESC(enable, "Enable ALS4000 soundcard."); 98 #ifdef SUPPORT_JOYSTICK 99 module_param_array(joystick_port, int, NULL, 0444); 100 MODULE_PARM_DESC(joystick_port, "Joystick port address for ALS4000 soundcard. (0 = disabled)"); 101 #endif 102 103 typedef struct { 104 struct pci_dev *pci; 105 unsigned long gcr; 106 #ifdef SUPPORT_JOYSTICK 107 struct gameport *gameport; 108 #endif 109 } snd_card_als4000_t; 110 111 static struct pci_device_id snd_als4000_ids[] = { 112 { 0x4005, 0x4000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* ALS4000 */ 113 { 0, } 114 }; 115 116 MODULE_DEVICE_TABLE(pci, snd_als4000_ids); 117 118 static inline void snd_als4000_gcr_write_addr(unsigned long port, u32 reg, u32 val) 119 { 120 outb(reg, port+0x0c); 121 outl(val, port+0x08); 122 } 123 124 static inline void snd_als4000_gcr_write(sb_t *sb, u32 reg, u32 val) 125 { 126 snd_als4000_gcr_write_addr(sb->alt_port, reg, val); 127 } 128 129 static inline u32 snd_als4000_gcr_read_addr(unsigned long port, u32 reg) 130 { 131 outb(reg, port+0x0c); 132 return inl(port+0x08); 133 } 134 135 static inline u32 snd_als4000_gcr_read(sb_t *sb, u32 reg) 136 { 137 return snd_als4000_gcr_read_addr(sb->alt_port, reg); 138 } 139 140 static void snd_als4000_set_rate(sb_t *chip, unsigned int rate) 141 { 142 if (!(chip->mode & SB_RATE_LOCK)) { 143 snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE_OUT); 144 snd_sbdsp_command(chip, rate>>8); 145 snd_sbdsp_command(chip, rate); 146 } 147 } 148 149 static void snd_als4000_set_capture_dma(sb_t *chip, dma_addr_t addr, unsigned size) 150 { 151 snd_als4000_gcr_write(chip, 0xa2, addr); 152 snd_als4000_gcr_write(chip, 0xa3, (size-1)); 153 } 154 155 static void snd_als4000_set_playback_dma(sb_t *chip, dma_addr_t addr, unsigned size) 156 { 157 snd_als4000_gcr_write(chip, 0x91, addr); 158 snd_als4000_gcr_write(chip, 0x92, (size-1)|0x180000); 159 } 160 161 #define ALS4000_FORMAT_SIGNED (1<<0) 162 #define ALS4000_FORMAT_16BIT (1<<1) 163 #define ALS4000_FORMAT_STEREO (1<<2) 164 165 static int snd_als4000_get_format(snd_pcm_runtime_t *runtime) 166 { 167 int result; 168 169 result = 0; 170 if (snd_pcm_format_signed(runtime->format)) 171 result |= ALS4000_FORMAT_SIGNED; 172 if (snd_pcm_format_physical_width(runtime->format) == 16) 173 result |= ALS4000_FORMAT_16BIT; 174 if (runtime->channels > 1) 175 result |= ALS4000_FORMAT_STEREO; 176 return result; 177 } 178 179 /* structure for setting up playback */ 180 static struct { 181 unsigned char dsp_cmd, dma_on, dma_off, format; 182 } playback_cmd_vals[]={ 183 /* ALS4000_FORMAT_U8_MONO */ 184 { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_MONO }, 185 /* ALS4000_FORMAT_S8_MONO */ 186 { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_MONO }, 187 /* ALS4000_FORMAT_U16L_MONO */ 188 { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_MONO }, 189 /* ALS4000_FORMAT_S16L_MONO */ 190 { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_MONO }, 191 /* ALS4000_FORMAT_U8_STEREO */ 192 { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_STEREO }, 193 /* ALS4000_FORMAT_S8_STEREO */ 194 { SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_STEREO }, 195 /* ALS4000_FORMAT_U16L_STEREO */ 196 { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_STEREO }, 197 /* ALS4000_FORMAT_S16L_STEREO */ 198 { SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_STEREO }, 199 }; 200 #define playback_cmd(chip) (playback_cmd_vals[(chip)->playback_format]) 201 202 /* structure for setting up capture */ 203 enum { CMD_WIDTH8=0x04, CMD_SIGNED=0x10, CMD_MONO=0x80, CMD_STEREO=0xA0 }; 204 static unsigned char capture_cmd_vals[]= 205 { 206 CMD_WIDTH8|CMD_MONO, /* ALS4000_FORMAT_U8_MONO */ 207 CMD_WIDTH8|CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S8_MONO */ 208 CMD_MONO, /* ALS4000_FORMAT_U16L_MONO */ 209 CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S16L_MONO */ 210 CMD_WIDTH8|CMD_STEREO, /* ALS4000_FORMAT_U8_STEREO */ 211 CMD_WIDTH8|CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S8_STEREO */ 212 CMD_STEREO, /* ALS4000_FORMAT_U16L_STEREO */ 213 CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S16L_STEREO */ 214 }; 215 #define capture_cmd(chip) (capture_cmd_vals[(chip)->capture_format]) 216 217 static int snd_als4000_hw_params(snd_pcm_substream_t * substream, 218 snd_pcm_hw_params_t * hw_params) 219 { 220 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); 221 } 222 223 static int snd_als4000_hw_free(snd_pcm_substream_t * substream) 224 { 225 snd_pcm_lib_free_pages(substream); 226 return 0; 227 } 228 229 static int snd_als4000_capture_prepare(snd_pcm_substream_t * substream) 230 { 231 unsigned long flags; 232 sb_t *chip = snd_pcm_substream_chip(substream); 233 snd_pcm_runtime_t *runtime = substream->runtime; 234 unsigned long size; 235 unsigned count; 236 237 chip->capture_format = snd_als4000_get_format(runtime); 238 239 size = snd_pcm_lib_buffer_bytes(substream); 240 count = snd_pcm_lib_period_bytes(substream); 241 242 if (chip->capture_format & ALS4000_FORMAT_16BIT) 243 count >>=1; 244 count--; 245 246 spin_lock_irqsave(&chip->reg_lock, flags); 247 snd_als4000_set_rate(chip, runtime->rate); 248 snd_als4000_set_capture_dma(chip, runtime->dma_addr, size); 249 spin_unlock_irqrestore(&chip->reg_lock, flags); 250 spin_lock_irqsave(&chip->mixer_lock, flags ); 251 snd_sbmixer_write(chip, 0xdc, count); 252 snd_sbmixer_write(chip, 0xdd, count>>8); 253 spin_unlock_irqrestore(&chip->mixer_lock, flags ); 254 return 0; 255 } 256 257 static int snd_als4000_playback_prepare(snd_pcm_substream_t *substream) 258 { 259 unsigned long flags; 260 sb_t *chip = snd_pcm_substream_chip(substream); 261 snd_pcm_runtime_t *runtime = substream->runtime; 262 unsigned long size; 263 unsigned count; 264 265 chip->playback_format = snd_als4000_get_format(runtime); 266 267 size = snd_pcm_lib_buffer_bytes(substream); 268 count = snd_pcm_lib_period_bytes(substream); 269 270 if (chip->playback_format & ALS4000_FORMAT_16BIT) 271 count >>=1; 272 count--; 273 274 /* FIXME: from second playback on, there's a lot more clicks and pops 275 * involved here than on first playback. Fiddling with 276 * tons of different settings didn't help (DMA, speaker on/off, 277 * reordering, ...). Something seems to get enabled on playback 278 * that I haven't found out how to disable again, which then causes 279 * the switching pops to reach the speakers the next time here. */ 280 spin_lock_irqsave(&chip->reg_lock, flags); 281 snd_als4000_set_rate(chip, runtime->rate); 282 snd_als4000_set_playback_dma(chip, runtime->dma_addr, size); 283 284 /* SPEAKER_ON not needed, since dma_on seems to also enable speaker */ 285 /* snd_sbdsp_command(chip, SB_DSP_SPEAKER_ON); */ 286 snd_sbdsp_command(chip, playback_cmd(chip).dsp_cmd); 287 snd_sbdsp_command(chip, playback_cmd(chip).format); 288 snd_sbdsp_command(chip, count); 289 snd_sbdsp_command(chip, count>>8); 290 snd_sbdsp_command(chip, playback_cmd(chip).dma_off); 291 spin_unlock_irqrestore(&chip->reg_lock, flags); 292 293 return 0; 294 } 295 296 static int snd_als4000_capture_trigger(snd_pcm_substream_t * substream, int cmd) 297 { 298 sb_t *chip = snd_pcm_substream_chip(substream); 299 int result = 0; 300 301 spin_lock(&chip->mixer_lock); 302 if (cmd == SNDRV_PCM_TRIGGER_START) { 303 chip->mode |= SB_RATE_LOCK_CAPTURE; 304 snd_sbmixer_write(chip, 0xde, capture_cmd(chip)); 305 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { 306 chip->mode &= ~SB_RATE_LOCK_CAPTURE; 307 snd_sbmixer_write(chip, 0xde, 0); 308 } else { 309 result = -EINVAL; 310 } 311 spin_unlock(&chip->mixer_lock); 312 return result; 313 } 314 315 static int snd_als4000_playback_trigger(snd_pcm_substream_t * substream, int cmd) 316 { 317 sb_t *chip = snd_pcm_substream_chip(substream); 318 int result = 0; 319 320 spin_lock(&chip->reg_lock); 321 if (cmd == SNDRV_PCM_TRIGGER_START) { 322 chip->mode |= SB_RATE_LOCK_PLAYBACK; 323 snd_sbdsp_command(chip, playback_cmd(chip).dma_on); 324 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { 325 snd_sbdsp_command(chip, playback_cmd(chip).dma_off); 326 chip->mode &= ~SB_RATE_LOCK_PLAYBACK; 327 } else { 328 result = -EINVAL; 329 } 330 spin_unlock(&chip->reg_lock); 331 return result; 332 } 333 334 static snd_pcm_uframes_t snd_als4000_capture_pointer(snd_pcm_substream_t * substream) 335 { 336 sb_t *chip = snd_pcm_substream_chip(substream); 337 unsigned int result; 338 339 spin_lock(&chip->reg_lock); 340 result = snd_als4000_gcr_read(chip, 0xa4) & 0xffff; 341 spin_unlock(&chip->reg_lock); 342 return bytes_to_frames( substream->runtime, result ); 343 } 344 345 static snd_pcm_uframes_t snd_als4000_playback_pointer(snd_pcm_substream_t * substream) 346 { 347 sb_t *chip = snd_pcm_substream_chip(substream); 348 unsigned result; 349 350 spin_lock(&chip->reg_lock); 351 result = snd_als4000_gcr_read(chip, 0xa0) & 0xffff; 352 spin_unlock(&chip->reg_lock); 353 return bytes_to_frames( substream->runtime, result ); 354 } 355 356 static irqreturn_t snd_als4000_interrupt(int irq, void *dev_id, struct pt_regs *regs) 357 { 358 sb_t *chip = dev_id; 359 unsigned gcr_status; 360 unsigned sb_status; 361 362 /* find out which bit of the ALS4000 produced the interrupt */ 363 gcr_status = inb(chip->alt_port + 0xe); 364 365 if ((gcr_status & 0x80) && (chip->playback_substream)) /* playback */ 366 snd_pcm_period_elapsed(chip->playback_substream); 367 if ((gcr_status & 0x40) && (chip->capture_substream)) /* capturing */ 368 snd_pcm_period_elapsed(chip->capture_substream); 369 if ((gcr_status & 0x10) && (chip->rmidi)) /* MPU401 interrupt */ 370 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs); 371 /* release the gcr */ 372 outb(gcr_status, chip->alt_port + 0xe); 373 374 spin_lock(&chip->mixer_lock); 375 sb_status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS); 376 spin_unlock(&chip->mixer_lock); 377 378 if (sb_status & SB_IRQTYPE_8BIT) 379 snd_sb_ack_8bit(chip); 380 if (sb_status & SB_IRQTYPE_16BIT) 381 snd_sb_ack_16bit(chip); 382 if (sb_status & SB_IRQTYPE_MPUIN) 383 inb(chip->mpu_port); 384 if (sb_status & 0x20) 385 inb(SBP(chip, RESET)); 386 return IRQ_HANDLED; 387 } 388 389 /*****************************************************************/ 390 391 static snd_pcm_hardware_t snd_als4000_playback = 392 { 393 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 394 SNDRV_PCM_INFO_MMAP_VALID), 395 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | 396 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */ 397 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 398 .rate_min = 4000, 399 .rate_max = 48000, 400 .channels_min = 1, 401 .channels_max = 2, 402 .buffer_bytes_max = 65536, 403 .period_bytes_min = 64, 404 .period_bytes_max = 65536, 405 .periods_min = 1, 406 .periods_max = 1024, 407 .fifo_size = 0 408 }; 409 410 static snd_pcm_hardware_t snd_als4000_capture = 411 { 412 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 413 SNDRV_PCM_INFO_MMAP_VALID), 414 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | 415 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */ 416 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 417 .rate_min = 4000, 418 .rate_max = 48000, 419 .channels_min = 1, 420 .channels_max = 2, 421 .buffer_bytes_max = 65536, 422 .period_bytes_min = 64, 423 .period_bytes_max = 65536, 424 .periods_min = 1, 425 .periods_max = 1024, 426 .fifo_size = 0 427 }; 428 429 /*****************************************************************/ 430 431 static int snd_als4000_playback_open(snd_pcm_substream_t * substream) 432 { 433 sb_t *chip = snd_pcm_substream_chip(substream); 434 snd_pcm_runtime_t *runtime = substream->runtime; 435 436 chip->playback_substream = substream; 437 runtime->hw = snd_als4000_playback; 438 return 0; 439 } 440 441 static int snd_als4000_playback_close(snd_pcm_substream_t * substream) 442 { 443 sb_t *chip = snd_pcm_substream_chip(substream); 444 445 chip->playback_substream = NULL; 446 snd_pcm_lib_free_pages(substream); 447 return 0; 448 } 449 450 static int snd_als4000_capture_open(snd_pcm_substream_t * substream) 451 { 452 sb_t *chip = snd_pcm_substream_chip(substream); 453 snd_pcm_runtime_t *runtime = substream->runtime; 454 455 chip->capture_substream = substream; 456 runtime->hw = snd_als4000_capture; 457 return 0; 458 } 459 460 static int snd_als4000_capture_close(snd_pcm_substream_t * substream) 461 { 462 sb_t *chip = snd_pcm_substream_chip(substream); 463 464 chip->capture_substream = NULL; 465 snd_pcm_lib_free_pages(substream); 466 return 0; 467 } 468 469 /******************************************************************/ 470 471 static snd_pcm_ops_t snd_als4000_playback_ops = { 472 .open = snd_als4000_playback_open, 473 .close = snd_als4000_playback_close, 474 .ioctl = snd_pcm_lib_ioctl, 475 .hw_params = snd_als4000_hw_params, 476 .hw_free = snd_als4000_hw_free, 477 .prepare = snd_als4000_playback_prepare, 478 .trigger = snd_als4000_playback_trigger, 479 .pointer = snd_als4000_playback_pointer 480 }; 481 482 static snd_pcm_ops_t snd_als4000_capture_ops = { 483 .open = snd_als4000_capture_open, 484 .close = snd_als4000_capture_close, 485 .ioctl = snd_pcm_lib_ioctl, 486 .hw_params = snd_als4000_hw_params, 487 .hw_free = snd_als4000_hw_free, 488 .prepare = snd_als4000_capture_prepare, 489 .trigger = snd_als4000_capture_trigger, 490 .pointer = snd_als4000_capture_pointer 491 }; 492 493 static void snd_als4000_pcm_free(snd_pcm_t *pcm) 494 { 495 sb_t *chip = pcm->private_data; 496 chip->pcm = NULL; 497 snd_pcm_lib_preallocate_free_for_all(pcm); 498 } 499 500 static int __devinit snd_als4000_pcm(sb_t *chip, int device) 501 { 502 snd_pcm_t *pcm; 503 int err; 504 505 if ((err = snd_pcm_new(chip->card, "ALS4000 DSP", device, 1, 1, &pcm)) < 0) 506 return err; 507 pcm->private_free = snd_als4000_pcm_free; 508 pcm->private_data = chip; 509 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; 510 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_als4000_playback_ops); 511 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_als4000_capture_ops); 512 513 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), 514 64*1024, 64*1024); 515 516 chip->pcm = pcm; 517 518 return 0; 519 } 520 521 /******************************************************************/ 522 523 static void snd_als4000_set_addr(unsigned long gcr, 524 unsigned int sb, 525 unsigned int mpu, 526 unsigned int opl, 527 unsigned int game) 528 { 529 u32 confA = 0; 530 u32 confB = 0; 531 532 if (mpu > 0) 533 confB |= (mpu | 1) << 16; 534 if (sb > 0) 535 confB |= (sb | 1); 536 if (game > 0) 537 confA |= (game | 1) << 16; 538 if (opl > 0) 539 confA |= (opl | 1); 540 snd_als4000_gcr_write_addr(gcr, 0xa8, confA); 541 snd_als4000_gcr_write_addr(gcr, 0xa9, confB); 542 } 543 544 static void __devinit snd_als4000_configure(sb_t *chip) 545 { 546 unsigned tmp; 547 int i; 548 549 /* do some more configuration */ 550 spin_lock_irq(&chip->mixer_lock); 551 tmp = snd_sbmixer_read(chip, 0xc0); 552 snd_sbmixer_write(chip, 0xc0, tmp|0x80); 553 /* always select DMA channel 0, since we do not actually use DMA */ 554 snd_sbmixer_write(chip, SB_DSP4_DMASETUP, SB_DMASETUP_DMA0); 555 snd_sbmixer_write(chip, 0xc0, tmp&0x7f); 556 spin_unlock_irq(&chip->mixer_lock); 557 558 spin_lock_irq(&chip->reg_lock); 559 /* magic number. Enables interrupts(?) */ 560 snd_als4000_gcr_write(chip, 0x8c, 0x28000); 561 for(i = 0x91; i <= 0x96; ++i) 562 snd_als4000_gcr_write(chip, i, 0); 563 564 snd_als4000_gcr_write(chip, 0x99, snd_als4000_gcr_read(chip, 0x99)); 565 spin_unlock_irq(&chip->reg_lock); 566 } 567 568 #ifdef SUPPORT_JOYSTICK 569 static int __devinit snd_als4000_create_gameport(snd_card_als4000_t *acard, int dev) 570 { 571 struct gameport *gp; 572 struct resource *r; 573 int io_port; 574 575 if (joystick_port[dev] == 0) 576 return -ENODEV; 577 578 if (joystick_port[dev] == 1) { /* auto-detect */ 579 for (io_port = 0x200; io_port <= 0x218; io_port += 8) { 580 r = request_region(io_port, 8, "ALS4000 gameport"); 581 if (r) 582 break; 583 } 584 } else { 585 io_port = joystick_port[dev]; 586 r = request_region(io_port, 8, "ALS4000 gameport"); 587 } 588 589 if (!r) { 590 printk(KERN_WARNING "als4000: cannot reserve joystick ports\n"); 591 return -EBUSY; 592 } 593 594 acard->gameport = gp = gameport_allocate_port(); 595 if (!gp) { 596 printk(KERN_ERR "als4000: cannot allocate memory for gameport\n"); 597 release_resource(r); 598 kfree_nocheck(r); 599 return -ENOMEM; 600 } 601 602 gameport_set_name(gp, "ALS4000 Gameport"); 603 gameport_set_phys(gp, "pci%s/gameport0", pci_name(acard->pci)); 604 gameport_set_dev_parent(gp, &acard->pci->dev); 605 gp->io = io_port; 606 gameport_set_port_data(gp, r); 607 608 /* Enable legacy joystick port */ 609 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 1); 610 611 gameport_register_port(acard->gameport); 612 613 return 0; 614 } 615 616 static void snd_als4000_free_gameport(snd_card_als4000_t *acard) 617 { 618 if (acard->gameport) { 619 struct resource *r = gameport_get_port_data(acard->gameport); 620 621 gameport_unregister_port(acard->gameport); 622 acard->gameport = NULL; 623 624 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0); /* disable joystick */ 625 release_resource(r); 626 kfree_nocheck(r); 627 } 628 } 629 #else 630 static inline int snd_als4000_create_gameport(snd_card_als4000_t *acard, int dev) { return -ENOSYS; } 631 static inline void snd_als4000_free_gameport(snd_card_als4000_t *acard) { } 632 #endif 633 634 static void snd_card_als4000_free( snd_card_t *card ) 635 { 636 snd_card_als4000_t * acard = (snd_card_als4000_t *)card->private_data; 637 638 /* make sure that interrupts are disabled */ 639 snd_als4000_gcr_write_addr( acard->gcr, 0x8c, 0); 640 /* free resources */ 641 snd_als4000_free_gameport(acard); 642 pci_release_regions(acard->pci); 643 pci_disable_device(acard->pci); 644 } 645 646 static int __devinit snd_card_als4000_probe(struct pci_dev *pci, 647 const struct pci_device_id *pci_id) 648 { 649 static int dev; 650 snd_card_t *card; 651 snd_card_als4000_t *acard; 652 unsigned long gcr; 653 sb_t *chip; 654 opl3_t *opl3; 655 unsigned short word; 656 int err; 657 658 if (dev >= SNDRV_CARDS) 659 return -ENODEV; 660 if (!enable[dev]) { 661 dev++; 662 return -ENOENT; 663 } 664 665 /* enable PCI device */ 666 if ((err = pci_enable_device(pci)) < 0) { 667 return err; 668 } 669 /* check, if we can restrict PCI DMA transfers to 24 bits */ 670 if (pci_set_dma_mask(pci, 0x00ffffff) < 0 || 671 pci_set_consistent_dma_mask(pci, 0x00ffffff) < 0) { 672 snd_printk("architecture does not support 24bit PCI busmaster DMA\n"); 673 pci_disable_device(pci); 674 return -ENXIO; 675 } 676 677 if ((err = pci_request_regions(pci, "ALS4000")) < 0) { 678 pci_disable_device(pci); 679 return err; 680 } 681 gcr = pci_resource_start(pci, 0); 682 683 pci_read_config_word(pci, PCI_COMMAND, &word); 684 pci_write_config_word(pci, PCI_COMMAND, word | PCI_COMMAND_IO); 685 pci_set_master(pci); 686 687 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 688 sizeof( snd_card_als4000_t ) ); 689 if (card == NULL) { 690 pci_release_regions(pci); 691 pci_disable_device(pci); 692 return -ENOMEM; 693 } 694 695 acard = (snd_card_als4000_t *)card->private_data; 696 acard->pci = pci; 697 acard->gcr = gcr; 698 card->private_free = snd_card_als4000_free; 699 700 /* disable all legacy ISA stuff */ 701 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0); 702 703 if ((err = snd_sbdsp_create(card, 704 gcr + 0x10, 705 pci->irq, 706 snd_als4000_interrupt, 707 -1, 708 -1, 709 SB_HW_ALS4000, 710 &chip)) < 0) { 711 snd_card_free(card); 712 return err; 713 } 714 715 chip->pci = pci; 716 chip->alt_port = gcr; 717 snd_card_set_dev(card, &pci->dev); 718 719 snd_als4000_configure(chip); 720 721 strcpy(card->driver, "ALS4000"); 722 strcpy(card->shortname, "Avance Logic ALS4000"); 723 sprintf(card->longname, "%s at 0x%lx, irq %i", 724 card->shortname, chip->alt_port, chip->irq); 725 726 if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_ALS4000, 727 gcr+0x30, 1, pci->irq, 0, 728 &chip->rmidi)) < 0) { 729 snd_card_free(card); 730 printk(KERN_ERR "als4000: no MPU-401device at 0x%lx ?\n", gcr+0x30); 731 return err; 732 } 733 734 if ((err = snd_als4000_pcm(chip, 0)) < 0) { 735 snd_card_free(card); 736 return err; 737 } 738 if ((err = snd_sbmixer_new(chip)) < 0) { 739 snd_card_free(card); 740 return err; 741 } 742 743 if (snd_opl3_create(card, gcr+0x10, gcr+0x12, 744 OPL3_HW_AUTO, 1, &opl3) < 0) { 745 printk(KERN_ERR "als4000: no OPL device at 0x%lx-0x%lx ?\n", 746 gcr+0x10, gcr+0x12 ); 747 } else { 748 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) { 749 snd_card_free(card); 750 return err; 751 } 752 } 753 754 snd_als4000_create_gameport(acard, dev); 755 756 if ((err = snd_card_register(card)) < 0) { 757 snd_card_free(card); 758 return err; 759 } 760 pci_set_drvdata(pci, card); 761 dev++; 762 return 0; 763 } 764 765 static void __devexit snd_card_als4000_remove(struct pci_dev *pci) 766 { 767 snd_card_free(pci_get_drvdata(pci)); 768 pci_set_drvdata(pci, NULL); 769 } 770 771 static struct pci_driver driver = { 772 .name = "ALS4000", 773 .owner = THIS_MODULE, 774 .id_table = snd_als4000_ids, 775 .probe = snd_card_als4000_probe, 776 .remove = __devexit_p(snd_card_als4000_remove), 777 }; 778 779 static int __init alsa_card_als4000_init(void) 780 { 781 return pci_register_driver(&driver); 782 } 783 784 static void __exit alsa_card_als4000_exit(void) 785 { 786 pci_unregister_driver(&driver); 787 } 788 789 module_init(alsa_card_als4000_init) 790 module_exit(alsa_card_als4000_exit) 791