1/* 2 * Audio Command Interface (ACI) driver (sound/aci.c) 3 * 4 * ACI is a protocol used to communicate with the microcontroller on 5 * some sound cards produced by miro, e.g. the miroSOUND PCM12 and 6 * PCM20. The ACI has been developed for miro by Norberto Pellicci 7 * <pellicci@home.com>. Special thanks to both him and miro for 8 * providing the ACI specification. 9 * 10 * The main function of the ACI is to control the mixer and to get a 11 * product identification. On the PCM20, ACI also controls the radio 12 * tuner on this card, this is supported in the Video for Linux 13 * miropcm20 driver. 14 * - 15 * This is a fullfeatured implementation. Unsupported features 16 * are bugs... (: 17 * 18 * It is not longer necessary to load the mad16 module first. The 19 * user is currently responsible to set the mad16 mixer correctly. 20 * 21 * To toggle the solo mode for full duplex operation just use the OSS 22 * record switch for the pcm ('wave') controller. Robert 23 * - 24 * 25 * Revision history: 26 * 27 * 1995-11-10 Markus Kuhn <mskuhn@cip.informatik.uni-erlangen.de> 28 * First version written. 29 * 1995-12-31 Markus Kuhn 30 * Second revision, general code cleanup. 31 * 1996-05-16 Hannu Savolainen 32 * Integrated with other parts of the driver. 33 * 1996-05-28 Markus Kuhn 34 * Initialize CS4231A mixer, make ACI first mixer, 35 * use new private mixer API for solo mode. 36 * 1998-08-18 Ruurd Reitsma <R.A.Reitsma@wbmt.tudelft.nl> 37 * Small modification to export ACI functions and 38 * complete modularisation. 39 * 2000-06-20 Robert Siemer <Robert.Siemer@gmx.de> 40 * Don't initialize the CS4231A mixer anymore, so the code is 41 * working again, and other small changes to fit in todays 42 * kernels. 43 * 2000-08-26 Robert Siemer 44 * Clean up and rewrite for 2.4.x. Maybe it's SMP safe now... (: 45 * ioctl bugfix, and integration of solo-mode into OSS-API, 46 * added (OSS-limited) equalizer support, return value bugfix, 47 * changed param aci_reset to reset, new params: ide, wss. 48 * 2001-04-20 Robert Siemer 49 * even more cleanups... 50 * 2001-10-08 Arnaldo Carvalho de Melo <acme@conectiva.com.br> 51 * Get rid of check_region, .bss optimizations, use set_current_state 52 */ 53 54#include <linux/kernel.h> 55#include <linux/init.h> 56#include <linux/module.h> 57#include <linux/proc_fs.h> 58#include <linux/slab.h> 59#include <asm/semaphore.h> 60#include <asm/io.h> 61#include <asm/uaccess.h> 62#include "sound_config.h" 63 64int aci_port; /* as determined by bit 4 in the OPTi 929 MC4 register */ 65int aci_idcode[2]; /* manufacturer and product ID */ 66int aci_version; /* ACI firmware version */ 67 68EXPORT_SYMBOL(aci_port); 69EXPORT_SYMBOL(aci_idcode); 70EXPORT_SYMBOL(aci_version); 71 72#include "aci.h" 73 74 75static int aci_solo; /* status bit of the card that can't be * 76 * checked with ACI versions prior to 0xb0 */ 77static int aci_amp; /* status bit for power-amp/line-out level 78 but I have no docs about what is what... */ 79static int aci_micpreamp=3; /* microphone preamp-level that can't be * 80 * checked with ACI versions prior to 0xb0 */ 81 82static int mixer_device; 83static struct semaphore aci_sem; 84 85#ifdef MODULE 86static int reset; 87MODULE_PARM(reset,"i"); 88MODULE_PARM_DESC(reset,"When set to 1, reset aci mixer."); 89#else 90static int reset = 1; 91#endif 92 93static int ide=-1; 94MODULE_PARM(ide,"i"); 95MODULE_PARM_DESC(ide,"1 enable, 0 disable ide-port - untested" 96 " default: do nothing"); 97static int wss=-1; 98MODULE_PARM(wss,"i"); 99MODULE_PARM_DESC(wss,"change between ACI/WSS-mixer; use 0 and 1 - untested" 100 " default: do nothing; for PCM1-pro only"); 101 102#if DEBUG 103static void print_bits(unsigned char c) 104{ 105 int j; 106 printk(KERN_DEBUG "aci: "); 107 108 for (j=7; j>=0; j--) { 109 printk("%d", (c >> j) & 0x1); 110 } 111 112 printk("\n"); 113} 114#endif 115 116/* 117 * This busy wait code normally requires less than 15 loops and 118 * practically always less than 100 loops on my i486/DX2 66 MHz. 119 * 120 * Warning: Waiting on the general status flag after reseting the MUTE 121 * function can take a VERY long time, because the PCM12 does some kind 122 * of fade-in effect. For this reason, access to the MUTE function has 123 * not been implemented at all. 124 * 125 * - The OSS interface has no mute option. It takes about 3 seconds to 126 * fade-in on my PCM20. busy_wait() handles it great now... Robert 127 */ 128 129static int busy_wait(void) 130{ 131 #define MINTIME 500 132 long timeout; 133 unsigned char byte; 134 135 for (timeout = 1; timeout <= MINTIME+30; timeout++) { 136 if (((byte=inb(BUSY_REGISTER)) & 1) == 0) { 137 if (timeout >= MINTIME) 138 printk(KERN_DEBUG "aci: Got READYFLAG in round %ld.\n", timeout-MINTIME); 139 return byte; 140 } 141 if (timeout >= MINTIME) { 142 long out=10*HZ; 143 switch (timeout-MINTIME) { 144 case 0 ... 9: 145 out /= 10; 146 case 10 ... 19: 147 out /= 10; 148 case 20 ... 30: 149 out /= 10; 150 default: 151 set_current_state(TASK_UNINTERRUPTIBLE); 152 schedule_timeout(out); 153 break; 154 } 155 } 156 } 157 printk(KERN_WARNING "aci: busy_wait() time out.\n"); 158 return -EBUSY; 159} 160 161/* The four ACI command types are fucked up. [-: 162 * implied is: 1w - special case for INIT 163 * write is: 2w1r 164 * read is: x(1w1r) where x is 1 or 2 (1 CHECK_SIG, 1 CHECK_STER, 165 * 1 VERSION, 2 IDCODE) 166 * the command is only in the first write, rest is protocol overhead 167 * 168 * indexed is technically a write and used for STATUS 169 * and the special case for TUNE is: 3w1r 170 * 171 * Here the new general sheme: TUNE --> aci_rw_cmd(x, y, z) 172 * indexed and write --> aci_rw_cmd(x, y, -1) 173 * implied and read (x=1) --> aci_rw_cmd(x, -1, -1) 174 * 175 * Read (x>=2) is not implemented (only used during initialization). 176 * Use aci_idcode[2] and aci_version... Robert 177 */ 178 179/* Some notes for error detection: theoretically it is possible. 180 * But it doubles the I/O-traffic from ww(r) to wwwrw(r) in the normal 181 * case and doesn't seem to be designed for that... Robert 182 */ 183 184static inline int aci_rawwrite(unsigned char byte) 185{ 186 if (busy_wait() >= 0) { 187#if DEBUG 188 printk(KERN_DEBUG "aci_rawwrite(%d)\n", byte); 189#endif 190 outb(byte, COMMAND_REGISTER); 191 return 0; 192 } else 193 return -EBUSY; 194} 195 196static inline int aci_rawread(void) 197{ 198 unsigned char byte; 199 200 if (busy_wait() >= 0) { 201 byte=inb(STATUS_REGISTER); 202#if DEBUG 203 printk(KERN_DEBUG "%d = aci_rawread()\n", byte); 204#endif 205 return byte; 206 } else 207 return -EBUSY; 208} 209 210 211int aci_rw_cmd(int write1, int write2, int write3) 212{ 213 int write[] = {write1, write2, write3}; 214 int read = -EINTR, i; 215 216 if (down_interruptible(&aci_sem)) 217 goto out; 218 219 for (i=0; i<3; i++) { 220 if (write[i]< 0 || write[i] > 255) 221 break; 222 else { 223 read = aci_rawwrite(write[i]); 224 if (read < 0) 225 goto out_up; 226 } 227 228 } 229 230 read = aci_rawread(); 231out_up: up(&aci_sem); 232out: return read; 233} 234 235EXPORT_SYMBOL(aci_rw_cmd); 236 237static int setvolume(caddr_t arg, 238 unsigned char left_index, unsigned char right_index) 239{ 240 int vol, ret, uservol, buf; 241 242 __get_user(uservol, (int *)arg); 243 244 /* left channel */ 245 vol = uservol & 0xff; 246 if (vol > 100) 247 vol = 100; 248 vol = SCALE(100, 0x20, vol); 249 if ((buf=aci_write_cmd(left_index, 0x20 - vol))<0) 250 return buf; 251 ret = SCALE(0x20, 100, vol); 252 253 254 /* right channel */ 255 vol = (uservol >> 8) & 0xff; 256 if (vol > 100) 257 vol = 100; 258 vol = SCALE(100, 0x20, vol); 259 if ((buf=aci_write_cmd(right_index, 0x20 - vol))<0) 260 return buf; 261 ret |= SCALE(0x20, 100, vol) << 8; 262 263 __put_user(ret, (int *)arg); 264 265 return 0; 266} 267 268static int getvolume(caddr_t arg, 269 unsigned char left_index, unsigned char right_index) 270{ 271 int vol; 272 int buf; 273 274 /* left channel */ 275 if ((buf=aci_indexed_cmd(ACI_STATUS, left_index))<0) 276 return buf; 277 vol = SCALE(0x20, 100, buf < 0x20 ? 0x20-buf : 0); 278 279 /* right channel */ 280 if ((buf=aci_indexed_cmd(ACI_STATUS, right_index))<0) 281 return buf; 282 vol |= SCALE(0x20, 100, buf < 0x20 ? 0x20-buf : 0) << 8; 283 284 __put_user(vol, (int *)arg); 285 286 return 0; 287} 288 289 290/* The equalizer is somewhat strange on the ACI. From -12dB to +12dB 291 * write: 0xff..down.to..0x80==0x00..up.to..0x7f 292 */ 293 294static inline unsigned int eq_oss2aci(unsigned int vol) 295{ 296 int boost=0; 297 unsigned int ret; 298 299 if (vol > 100) 300 vol = 100; 301 if (vol > 50) { 302 vol -= 51; 303 boost=1; 304 } 305 if (boost) 306 ret=SCALE(49, 0x7e, vol)+1; 307 else 308 ret=0xff - SCALE(50, 0x7f, vol); 309 return ret; 310} 311 312static inline unsigned int eq_aci2oss(unsigned int vol) 313{ 314 if (vol < 0x80) 315 return SCALE(0x7f, 50, vol) + 50; 316 else 317 return SCALE(0x7f, 50, 0xff-vol); 318} 319 320 321static int setequalizer(caddr_t arg, 322 unsigned char left_index, unsigned char right_index) 323{ 324 int buf; 325 unsigned int vol; 326 327 __get_user(vol, (int *)arg); 328 329 /* left channel */ 330 if ((buf=aci_write_cmd(left_index, eq_oss2aci(vol & 0xff)))<0) 331 return buf; 332 333 /* right channel */ 334 if ((buf=aci_write_cmd(right_index, eq_oss2aci((vol>>8) & 0xff)))<0) 335 return buf; 336 337 /* the ACI equalizer is more precise */ 338 return 0; 339} 340 341static int getequalizer(caddr_t arg, 342 unsigned char left_index, unsigned char right_index) 343{ 344 int buf; 345 unsigned int vol; 346 347 /* left channel */ 348 if ((buf=aci_indexed_cmd(ACI_STATUS, left_index))<0) 349 return buf; 350 vol = eq_aci2oss(buf); 351 352 /* right channel */ 353 if ((buf=aci_indexed_cmd(ACI_STATUS, right_index))<0) 354 return buf; 355 vol |= eq_aci2oss(buf) << 8; 356 357 __put_user(vol, (int *)arg); 358 359 return 0; 360} 361 362static int aci_mixer_ioctl (int dev, unsigned int cmd, caddr_t arg) 363{ 364 int vol, buf; 365 366 switch (cmd) { 367 case SOUND_MIXER_WRITE_VOLUME: 368 return setvolume(arg, 0x01, 0x00); 369 case SOUND_MIXER_WRITE_CD: 370 return setvolume(arg, 0x3c, 0x34); 371 case SOUND_MIXER_WRITE_MIC: 372 return setvolume(arg, 0x38, 0x30); 373 case SOUND_MIXER_WRITE_LINE: 374 return setvolume(arg, 0x39, 0x31); 375 case SOUND_MIXER_WRITE_SYNTH: 376 return setvolume(arg, 0x3b, 0x33); 377 case SOUND_MIXER_WRITE_PCM: 378 return setvolume(arg, 0x3a, 0x32); 379 case MIXER_WRITE(SOUND_MIXER_RADIO): /* fall through */ 380 case SOUND_MIXER_WRITE_LINE1: /* AUX1 or radio */ 381 return setvolume(arg, 0x3d, 0x35); 382 case SOUND_MIXER_WRITE_LINE2: /* AUX2 */ 383 return setvolume(arg, 0x3e, 0x36); 384 case SOUND_MIXER_WRITE_BASS: /* set band one and two */ 385 if (aci_idcode[1]=='C') { 386 if ((buf=setequalizer(arg, 0x48, 0x40)) || 387 (buf=setequalizer(arg, 0x49, 0x41))); 388 return buf; 389 } 390 break; 391 case SOUND_MIXER_WRITE_TREBLE: /* set band six and seven */ 392 if (aci_idcode[1]=='C') { 393 if ((buf=setequalizer(arg, 0x4d, 0x45)) || 394 (buf=setequalizer(arg, 0x4e, 0x46))); 395 return buf; 396 } 397 break; 398 case SOUND_MIXER_WRITE_IGAIN: /* MIC pre-amp */ 399 if (aci_idcode[1]=='B' || aci_idcode[1]=='C') { 400 __get_user(vol, (int *)arg); 401 vol = vol & 0xff; 402 if (vol > 100) 403 vol = 100; 404 vol = SCALE(100, 3, vol); 405 if ((buf=aci_write_cmd(ACI_WRITE_IGAIN, vol))<0) 406 return buf; 407 aci_micpreamp = vol; 408 vol = SCALE(3, 100, vol); 409 vol |= (vol << 8); 410 __put_user(vol, (int *)arg); 411 return 0; 412 } 413 break; 414 case SOUND_MIXER_WRITE_OGAIN: /* Power-amp/line-out level */ 415 if (aci_idcode[1]=='A' || aci_idcode[1]=='B') { 416 __get_user(buf, (int *)arg); 417 buf = buf & 0xff; 418 if (buf > 50) 419 vol = 1; 420 else 421 vol = 0; 422 if ((buf=aci_write_cmd(ACI_SET_POWERAMP, vol))<0) 423 return buf; 424 aci_amp = vol; 425 if (aci_amp) 426 buf = (100 || 100<<8); 427 else 428 buf = 0; 429 __put_user(buf, (int *)arg); 430 return 0; 431 } 432 break; 433 case SOUND_MIXER_WRITE_RECSRC: 434 /* handle solo mode control */ 435 __get_user(buf, (int *)arg); 436 /* unset solo when RECSRC for PCM is requested */ 437 if (aci_idcode[1]=='B' || aci_idcode[1]=='C') { 438 vol = !(buf & SOUND_MASK_PCM); 439 if ((buf=aci_write_cmd(ACI_SET_SOLOMODE, vol))<0) 440 return buf; 441 aci_solo = vol; 442 } 443 buf = (SOUND_MASK_CD| SOUND_MASK_MIC| SOUND_MASK_LINE| 444 SOUND_MASK_SYNTH| SOUND_MASK_LINE2); 445 if (aci_idcode[1] == 'C') /* PCM20 radio */ 446 buf |= SOUND_MASK_RADIO; 447 else 448 buf |= SOUND_MASK_LINE1; 449 if (!aci_solo) 450 buf |= SOUND_MASK_PCM; 451 __put_user(buf, (int *)arg); 452 return 0; 453 case SOUND_MIXER_READ_DEVMASK: 454 buf = (SOUND_MASK_VOLUME | SOUND_MASK_CD | 455 SOUND_MASK_MIC | SOUND_MASK_LINE | 456 SOUND_MASK_SYNTH | SOUND_MASK_PCM | 457 SOUND_MASK_LINE2); 458 switch (aci_idcode[1]) { 459 case 'C': /* PCM20 radio */ 460 buf |= (SOUND_MASK_RADIO | SOUND_MASK_IGAIN | 461 SOUND_MASK_BASS | SOUND_MASK_TREBLE); 462 break; 463 case 'B': /* PCM12 */ 464 buf |= (SOUND_MASK_LINE1 | SOUND_MASK_IGAIN | 465 SOUND_MASK_OGAIN); 466 break; 467 case 'A': /* PCM1-pro */ 468 buf |= (SOUND_MASK_LINE1 | SOUND_MASK_OGAIN); 469 break; 470 default: 471 buf |= SOUND_MASK_LINE1; 472 } 473 __put_user(buf, (int *)arg); 474 return 0; 475 case SOUND_MIXER_READ_STEREODEVS: 476 buf = (SOUND_MASK_VOLUME | SOUND_MASK_CD | 477 SOUND_MASK_MIC | SOUND_MASK_LINE | 478 SOUND_MASK_SYNTH | SOUND_MASK_PCM | 479 SOUND_MASK_LINE2); 480 switch (aci_idcode[1]) { 481 case 'C': /* PCM20 radio */ 482 buf |= (SOUND_MASK_RADIO | 483 SOUND_MASK_BASS | SOUND_MASK_TREBLE); 484 break; 485 default: 486 buf |= SOUND_MASK_LINE1; 487 } 488 __put_user(buf, (int *)arg); 489 return 0; 490 case SOUND_MIXER_READ_RECMASK: 491 buf = (SOUND_MASK_CD| SOUND_MASK_MIC| SOUND_MASK_LINE| 492 SOUND_MASK_SYNTH| SOUND_MASK_LINE2| SOUND_MASK_PCM); 493 if (aci_idcode[1] == 'C') /* PCM20 radio */ 494 buf |= SOUND_MASK_RADIO; 495 else 496 buf |= SOUND_MASK_LINE1; 497 498 __put_user(buf, (int *)arg); 499 return 0; 500 case SOUND_MIXER_READ_RECSRC: 501 buf = (SOUND_MASK_CD | SOUND_MASK_MIC | SOUND_MASK_LINE | 502 SOUND_MASK_SYNTH | SOUND_MASK_LINE2); 503 /* do we need aci_solo or can I get it from the ACI? */ 504 switch (aci_idcode[1]) { 505 case 'B': /* PCM12 */ 506 case 'C': /* PCM20 radio */ 507 if (aci_version >= 0xb0) { 508 if ((vol=aci_rw_cmd(ACI_STATUS, 509 ACI_S_GENERAL, -1))<0) 510 return vol; 511 if (vol & 0x20) 512 buf |= SOUND_MASK_PCM; 513 } 514 else 515 if (!aci_solo) 516 buf |= SOUND_MASK_PCM; 517 break; 518 default: 519 buf |= SOUND_MASK_PCM; 520 } 521 if (aci_idcode[1] == 'C') /* PCM20 radio */ 522 buf |= SOUND_MASK_RADIO; 523 else 524 buf |= SOUND_MASK_LINE1; 525 526 __put_user(buf, (int *)arg); 527 return 0; 528 case SOUND_MIXER_READ_CAPS: 529 __put_user(0, (int *)arg); 530 return 0; 531 case SOUND_MIXER_READ_VOLUME: 532 return getvolume(arg, 0x04, 0x03); 533 case SOUND_MIXER_READ_CD: 534 return getvolume(arg, 0x0a, 0x09); 535 case SOUND_MIXER_READ_MIC: 536 return getvolume(arg, 0x06, 0x05); 537 case SOUND_MIXER_READ_LINE: 538 return getvolume(arg, 0x08, 0x07); 539 case SOUND_MIXER_READ_SYNTH: 540 return getvolume(arg, 0x0c, 0x0b); 541 case SOUND_MIXER_READ_PCM: 542 return getvolume(arg, 0x0e, 0x0d); 543 case MIXER_READ(SOUND_MIXER_RADIO): /* fall through */ 544 case SOUND_MIXER_READ_LINE1: /* AUX1 */ 545 return getvolume(arg, 0x11, 0x10); 546 case SOUND_MIXER_READ_LINE2: /* AUX2 */ 547 return getvolume(arg, 0x13, 0x12); 548 case SOUND_MIXER_READ_BASS: /* get band one */ 549 if (aci_idcode[1]=='C') { 550 return getequalizer(arg, 0x23, 0x22); 551 } 552 break; 553 case SOUND_MIXER_READ_TREBLE: /* get band seven */ 554 if (aci_idcode[1]=='C') { 555 return getequalizer(arg, 0x2f, 0x2e); 556 } 557 break; 558 case SOUND_MIXER_READ_IGAIN: /* MIC pre-amp */ 559 if (aci_idcode[1]=='B' || aci_idcode[1]=='C') { 560 /* aci_micpreamp or ACI? */ 561 if (aci_version >= 0xb0) { 562 if ((buf=aci_indexed_cmd(ACI_STATUS, 563 ACI_S_READ_IGAIN))<0) 564 return buf; 565 } 566 else 567 buf=aci_micpreamp; 568 vol = SCALE(3, 100, buf <= 3 ? buf : 3); 569 vol |= vol << 8; 570 __put_user(vol, (int *)arg); 571 return 0; 572 } 573 break; 574 case SOUND_MIXER_READ_OGAIN: 575 if (aci_amp) 576 buf = (100 || 100<<8); 577 else 578 buf = 0; 579 __put_user(buf, (int *)arg); 580 return 0; 581 } 582 return -EINVAL; 583} 584 585static struct mixer_operations aci_mixer_operations = 586{ 587 owner: THIS_MODULE, 588 id: "ACI", 589 ioctl: aci_mixer_ioctl 590}; 591 592/* 593 * There is also an internal mixer in the codec (CS4231A or AD1845), 594 * that deserves no purpose in an ACI based system which uses an 595 * external ACI controlled stereo mixer. Make sure that this codec 596 * mixer has the AUX1 input selected as the recording source, that the 597 * input gain is set near maximum and that the other channels going 598 * from the inputs to the codec output are muted. 599 */ 600 601static int __init attach_aci(void) 602{ 603 char *boardname; 604 int i, rc = -EBUSY; 605 606 init_MUTEX(&aci_sem); 607 608 outb(0xE3, 0xf8f); /* Write MAD16 password */ 609 aci_port = (inb(0xf90) & 0x10) ? 610 0x344: 0x354; /* Get aci_port from MC4_PORT */ 611 612 if (!request_region(aci_port, 3, "sound mixer (ACI)")) { 613 printk(KERN_NOTICE 614 "aci: I/O area 0x%03x-0x%03x already used.\n", 615 aci_port, aci_port+2); 616 goto out; 617 } 618 619 /* force ACI into a known state */ 620 rc = -EFAULT; 621 for (i=0; i<3; i++) 622 if (aci_rw_cmd(ACI_ERROR_OP, -1, -1)<0) 623 goto out_release_region; 624 625 /* official this is one aci read call: */ 626 rc = -EFAULT; 627 if ((aci_idcode[0]=aci_rw_cmd(ACI_READ_IDCODE, -1, -1))<0 || 628 (aci_idcode[1]=aci_rw_cmd(ACI_READ_IDCODE, -1, -1))<0) { 629 printk(KERN_ERR "aci: Failed to read idcode on 0x%03x.\n", 630 aci_port); 631 goto out_release_region; 632 } 633 634 if ((aci_version=aci_rw_cmd(ACI_READ_VERSION, -1, -1))<0) { 635 printk(KERN_ERR "aci: Failed to read version on 0x%03x.\n", 636 aci_port); 637 goto out_release_region; 638 } 639 640 if (aci_idcode[0] == 'm') { 641 /* It looks like a miro sound card. */ 642 switch (aci_idcode[1]) { 643 case 'A': 644 boardname = "PCM1 pro / early PCM12"; 645 break; 646 case 'B': 647 boardname = "PCM12"; 648 break; 649 case 'C': 650 boardname = "PCM20 radio"; 651 break; 652 default: 653 boardname = "unknown miro"; 654 } 655 } else { 656 printk(KERN_WARNING "aci: Warning: unsupported card! - " 657 "no hardware, no specs...\n"); 658 boardname = "unknown Cardinal Technologies"; 659 } 660 661 printk(KERN_INFO "<ACI 0x%02x, id %02x/%02x \"%c/%c\", (%s)> at 0x%03x\n", 662 aci_version, 663 aci_idcode[0], aci_idcode[1], 664 aci_idcode[0], aci_idcode[1], 665 boardname, aci_port); 666 667 rc = -EBUSY; 668 if (reset) { 669 /* first write()s after reset fail with my PCM20 */ 670 if (aci_rw_cmd(ACI_INIT, -1, -1)<0 || 671 aci_rw_cmd(ACI_ERROR_OP, ACI_ERROR_OP, ACI_ERROR_OP)<0 || 672 aci_rw_cmd(ACI_ERROR_OP, ACI_ERROR_OP, ACI_ERROR_OP)<0) 673 goto out_release_region; 674 } 675 676 /* the PCM20 is muted after reset (and reboot) */ 677 if (aci_rw_cmd(ACI_SET_MUTE, 0x00, -1)<0) 678 goto out_release_region; 679 680 if (ide>=0) 681 if (aci_rw_cmd(ACI_SET_IDE, !ide, -1)<0) 682 goto out_release_region; 683 684 if (wss>=0 && aci_idcode[1]=='A') 685 if (aci_rw_cmd(ACI_SET_WSS, !!wss, -1)<0) 686 goto out_release_region; 687 688 mixer_device = sound_install_mixer(MIXER_DRIVER_VERSION, boardname, 689 &aci_mixer_operations, 690 sizeof(aci_mixer_operations), NULL); 691 rc = 0; 692 if (mixer_device < 0) { 693 printk(KERN_ERR "aci: Failed to install mixer.\n"); 694 rc = mixer_device; 695 goto out_release_region; 696 } /* else Maybe initialize the CS4231A mixer here... */ 697out: return rc; 698out_release_region: 699 release_region(aci_port, 3); 700 goto out; 701} 702 703static void __exit unload_aci(void) 704{ 705 sound_unload_mixerdev(mixer_device); 706 release_region(aci_port, 3); 707} 708 709module_init(attach_aci); 710module_exit(unload_aci); 711MODULE_LICENSE("GPL"); 712