1 /* 2 * PMac AWACS lowlevel functions 3 * 4 * Copyright (c) by Takashi Iwai <tiwai@suse.de> 5 * code based on dmasound.c. 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 22 23 #include <asm/io.h> 24 #include <asm/nvram.h> 25 #include <linux/init.h> 26 #include <linux/delay.h> 27 #include <linux/slab.h> 28 #include <sound/core.h> 29 #include "pmac.h" 30 31 32 #ifdef CONFIG_ADB_CUDA 33 #define PMAC_AMP_AVAIL 34 #endif 35 36 #ifdef PMAC_AMP_AVAIL 37 struct awacs_amp { 38 unsigned char amp_master; 39 unsigned char amp_vol[2][2]; 40 unsigned char amp_tone[2]; 41 }; 42 43 #define CHECK_CUDA_AMP() (sys_ctrler == SYS_CTRLER_CUDA) 44 45 #endif /* PMAC_AMP_AVAIL */ 46 47 48 static void snd_pmac_screamer_wait(struct snd_pmac *chip) 49 { 50 long timeout = 2000; 51 while (!(in_le32(&chip->awacs->codec_stat) & MASK_VALID)) { 52 mdelay(1); 53 if (! --timeout) { 54 snd_printd("snd_pmac_screamer_wait timeout\n"); 55 break; 56 } 57 } 58 } 59 60 /* 61 * write AWACS register 62 */ 63 static void 64 snd_pmac_awacs_write(struct snd_pmac *chip, int val) 65 { 66 long timeout = 5000000; 67 68 if (chip->model == PMAC_SCREAMER) 69 snd_pmac_screamer_wait(chip); 70 out_le32(&chip->awacs->codec_ctrl, val | (chip->subframe << 22)); 71 while (in_le32(&chip->awacs->codec_ctrl) & MASK_NEWECMD) { 72 if (! --timeout) { 73 snd_printd("snd_pmac_awacs_write timeout\n"); 74 break; 75 } 76 } 77 } 78 79 static void 80 snd_pmac_awacs_write_reg(struct snd_pmac *chip, int reg, int val) 81 { 82 snd_pmac_awacs_write(chip, val | (reg << 12)); 83 chip->awacs_reg[reg] = val; 84 } 85 86 static void 87 snd_pmac_awacs_write_noreg(struct snd_pmac *chip, int reg, int val) 88 { 89 snd_pmac_awacs_write(chip, val | (reg << 12)); 90 } 91 92 #ifdef CONFIG_PM 93 /* Recalibrate chip */ 94 static void screamer_recalibrate(struct snd_pmac *chip) 95 { 96 if (chip->model != PMAC_SCREAMER) 97 return; 98 99 /* Sorry for the horrible delays... I hope to get that improved 100 * by making the whole PM process asynchronous in a future version 101 */ 102 snd_pmac_awacs_write_noreg(chip, 1, chip->awacs_reg[1]); 103 if (chip->manufacturer == 0x1) 104 /* delay for broken crystal part */ 105 msleep(750); 106 snd_pmac_awacs_write_noreg(chip, 1, 107 chip->awacs_reg[1] | MASK_RECALIBRATE | 108 MASK_CMUTE | MASK_AMUTE); 109 snd_pmac_awacs_write_noreg(chip, 1, chip->awacs_reg[1]); 110 snd_pmac_awacs_write_noreg(chip, 6, chip->awacs_reg[6]); 111 } 112 113 #else 114 #define screamer_recalibrate(chip) /* NOP */ 115 #endif 116 117 118 /* 119 * additional callback to set the pcm format 120 */ 121 static void snd_pmac_awacs_set_format(struct snd_pmac *chip) 122 { 123 chip->awacs_reg[1] &= ~MASK_SAMPLERATE; 124 chip->awacs_reg[1] |= chip->rate_index << 3; 125 snd_pmac_awacs_write_reg(chip, 1, chip->awacs_reg[1]); 126 } 127 128 129 /* 130 * AWACS volume callbacks 131 */ 132 /* 133 * volumes: 0-15 stereo 134 */ 135 static int snd_pmac_awacs_info_volume(struct snd_kcontrol *kcontrol, 136 struct snd_ctl_elem_info *uinfo) 137 { 138 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 139 uinfo->count = 2; 140 uinfo->value.integer.min = 0; 141 uinfo->value.integer.max = 15; 142 return 0; 143 } 144 145 static int snd_pmac_awacs_get_volume(struct snd_kcontrol *kcontrol, 146 struct snd_ctl_elem_value *ucontrol) 147 { 148 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 149 int reg = kcontrol->private_value & 0xff; 150 int lshift = (kcontrol->private_value >> 8) & 0xff; 151 int inverted = (kcontrol->private_value >> 16) & 1; 152 unsigned long flags; 153 int vol[2]; 154 155 spin_lock_irqsave(&chip->reg_lock, flags); 156 vol[0] = (chip->awacs_reg[reg] >> lshift) & 0xf; 157 vol[1] = chip->awacs_reg[reg] & 0xf; 158 spin_unlock_irqrestore(&chip->reg_lock, flags); 159 if (inverted) { 160 vol[0] = 0x0f - vol[0]; 161 vol[1] = 0x0f - vol[1]; 162 } 163 ucontrol->value.integer.value[0] = vol[0]; 164 ucontrol->value.integer.value[1] = vol[1]; 165 return 0; 166 } 167 168 static int snd_pmac_awacs_put_volume(struct snd_kcontrol *kcontrol, 169 struct snd_ctl_elem_value *ucontrol) 170 { 171 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 172 int reg = kcontrol->private_value & 0xff; 173 int lshift = (kcontrol->private_value >> 8) & 0xff; 174 int inverted = (kcontrol->private_value >> 16) & 1; 175 int val, oldval; 176 unsigned long flags; 177 unsigned int vol[2]; 178 179 vol[0] = ucontrol->value.integer.value[0]; 180 vol[1] = ucontrol->value.integer.value[1]; 181 if (vol[0] > 0x0f || vol[1] > 0x0f) 182 return -EINVAL; 183 if (inverted) { 184 vol[0] = 0x0f - vol[0]; 185 vol[1] = 0x0f - vol[1]; 186 } 187 vol[0] &= 0x0f; 188 vol[1] &= 0x0f; 189 spin_lock_irqsave(&chip->reg_lock, flags); 190 oldval = chip->awacs_reg[reg]; 191 val = oldval & ~(0xf | (0xf << lshift)); 192 val |= vol[0] << lshift; 193 val |= vol[1]; 194 if (oldval != val) 195 snd_pmac_awacs_write_reg(chip, reg, val); 196 spin_unlock_irqrestore(&chip->reg_lock, flags); 197 return oldval != reg; 198 } 199 200 201 #define AWACS_VOLUME(xname, xreg, xshift, xinverted) \ 202 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0, \ 203 .info = snd_pmac_awacs_info_volume, \ 204 .get = snd_pmac_awacs_get_volume, \ 205 .put = snd_pmac_awacs_put_volume, \ 206 .private_value = (xreg) | ((xshift) << 8) | ((xinverted) << 16) } 207 208 /* 209 * mute master/ogain for AWACS: mono 210 */ 211 static int snd_pmac_awacs_get_switch(struct snd_kcontrol *kcontrol, 212 struct snd_ctl_elem_value *ucontrol) 213 { 214 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 215 int reg = kcontrol->private_value & 0xff; 216 int shift = (kcontrol->private_value >> 8) & 0xff; 217 int invert = (kcontrol->private_value >> 16) & 1; 218 int val; 219 unsigned long flags; 220 221 spin_lock_irqsave(&chip->reg_lock, flags); 222 val = (chip->awacs_reg[reg] >> shift) & 1; 223 spin_unlock_irqrestore(&chip->reg_lock, flags); 224 if (invert) 225 val = 1 - val; 226 ucontrol->value.integer.value[0] = val; 227 return 0; 228 } 229 230 static int snd_pmac_awacs_put_switch(struct snd_kcontrol *kcontrol, 231 struct snd_ctl_elem_value *ucontrol) 232 { 233 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 234 int reg = kcontrol->private_value & 0xff; 235 int shift = (kcontrol->private_value >> 8) & 0xff; 236 int invert = (kcontrol->private_value >> 16) & 1; 237 int mask = 1 << shift; 238 int val, changed; 239 unsigned long flags; 240 241 spin_lock_irqsave(&chip->reg_lock, flags); 242 val = chip->awacs_reg[reg] & ~mask; 243 if (ucontrol->value.integer.value[0] != invert) 244 val |= mask; 245 changed = chip->awacs_reg[reg] != val; 246 if (changed) 247 snd_pmac_awacs_write_reg(chip, reg, val); 248 spin_unlock_irqrestore(&chip->reg_lock, flags); 249 return changed; 250 } 251 252 #define AWACS_SWITCH(xname, xreg, xshift, xinvert) \ 253 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0, \ 254 .info = snd_pmac_boolean_mono_info, \ 255 .get = snd_pmac_awacs_get_switch, \ 256 .put = snd_pmac_awacs_put_switch, \ 257 .private_value = (xreg) | ((xshift) << 8) | ((xinvert) << 16) } 258 259 260 #ifdef PMAC_AMP_AVAIL 261 /* 262 * controls for perch/whisper extension cards, e.g. G3 desktop 263 * 264 * TDA7433 connected via i2c address 0x45 (= 0x8a), 265 * accessed through cuda 266 */ 267 static void awacs_set_cuda(int reg, int val) 268 { 269 struct adb_request req; 270 cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_GET_SET_IIC, 0x8a, 271 reg, val); 272 while (! req.complete) 273 cuda_poll(); 274 } 275 276 /* 277 * level = 0 - 14, 7 = 0 dB 278 */ 279 static void awacs_amp_set_tone(struct awacs_amp *amp, int bass, int treble) 280 { 281 amp->amp_tone[0] = bass; 282 amp->amp_tone[1] = treble; 283 if (bass > 7) 284 bass = (14 - bass) + 8; 285 if (treble > 7) 286 treble = (14 - treble) + 8; 287 awacs_set_cuda(2, (bass << 4) | treble); 288 } 289 290 /* 291 * vol = 0 - 31 (attenuation), 32 = mute bit, stereo 292 */ 293 static int awacs_amp_set_vol(struct awacs_amp *amp, int index, 294 int lvol, int rvol, int do_check) 295 { 296 if (do_check && amp->amp_vol[index][0] == lvol && 297 amp->amp_vol[index][1] == rvol) 298 return 0; 299 awacs_set_cuda(3 + index, lvol); 300 awacs_set_cuda(5 + index, rvol); 301 amp->amp_vol[index][0] = lvol; 302 amp->amp_vol[index][1] = rvol; 303 return 1; 304 } 305 306 /* 307 * 0 = -79 dB, 79 = 0 dB, 99 = +20 dB 308 */ 309 static void awacs_amp_set_master(struct awacs_amp *amp, int vol) 310 { 311 amp->amp_master = vol; 312 if (vol <= 79) 313 vol = 32 + (79 - vol); 314 else 315 vol = 32 - (vol - 79); 316 awacs_set_cuda(1, vol); 317 } 318 319 static void awacs_amp_free(struct snd_pmac *chip) 320 { 321 struct awacs_amp *amp = chip->mixer_data; 322 if (!amp) 323 return; 324 kfree(amp); 325 chip->mixer_data = NULL; 326 chip->mixer_free = NULL; 327 } 328 329 330 /* 331 * mixer controls 332 */ 333 static int snd_pmac_awacs_info_volume_amp(struct snd_kcontrol *kcontrol, 334 struct snd_ctl_elem_info *uinfo) 335 { 336 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 337 uinfo->count = 2; 338 uinfo->value.integer.min = 0; 339 uinfo->value.integer.max = 31; 340 return 0; 341 } 342 343 static int snd_pmac_awacs_get_volume_amp(struct snd_kcontrol *kcontrol, 344 struct snd_ctl_elem_value *ucontrol) 345 { 346 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 347 int index = kcontrol->private_value; 348 struct awacs_amp *amp = chip->mixer_data; 349 350 ucontrol->value.integer.value[0] = 31 - (amp->amp_vol[index][0] & 31); 351 ucontrol->value.integer.value[1] = 31 - (amp->amp_vol[index][1] & 31); 352 return 0; 353 } 354 355 static int snd_pmac_awacs_put_volume_amp(struct snd_kcontrol *kcontrol, 356 struct snd_ctl_elem_value *ucontrol) 357 { 358 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 359 int index = kcontrol->private_value; 360 int vol[2]; 361 struct awacs_amp *amp = chip->mixer_data; 362 363 vol[0] = (31 - (ucontrol->value.integer.value[0] & 31)) 364 | (amp->amp_vol[index][0] & 32); 365 vol[1] = (31 - (ucontrol->value.integer.value[1] & 31)) 366 | (amp->amp_vol[index][1] & 32); 367 return awacs_amp_set_vol(amp, index, vol[0], vol[1], 1); 368 } 369 370 static int snd_pmac_awacs_get_switch_amp(struct snd_kcontrol *kcontrol, 371 struct snd_ctl_elem_value *ucontrol) 372 { 373 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 374 int index = kcontrol->private_value; 375 struct awacs_amp *amp = chip->mixer_data; 376 377 ucontrol->value.integer.value[0] = (amp->amp_vol[index][0] & 32) 378 ? 0 : 1; 379 ucontrol->value.integer.value[1] = (amp->amp_vol[index][1] & 32) 380 ? 0 : 1; 381 return 0; 382 } 383 384 static int snd_pmac_awacs_put_switch_amp(struct snd_kcontrol *kcontrol, 385 struct snd_ctl_elem_value *ucontrol) 386 { 387 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 388 int index = kcontrol->private_value; 389 int vol[2]; 390 struct awacs_amp *amp = chip->mixer_data; 391 392 vol[0] = (ucontrol->value.integer.value[0] ? 0 : 32) 393 | (amp->amp_vol[index][0] & 31); 394 vol[1] = (ucontrol->value.integer.value[1] ? 0 : 32) 395 | (amp->amp_vol[index][1] & 31); 396 return awacs_amp_set_vol(amp, index, vol[0], vol[1], 1); 397 } 398 399 static int snd_pmac_awacs_info_tone_amp(struct snd_kcontrol *kcontrol, 400 struct snd_ctl_elem_info *uinfo) 401 { 402 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 403 uinfo->count = 1; 404 uinfo->value.integer.min = 0; 405 uinfo->value.integer.max = 14; 406 return 0; 407 } 408 409 static int snd_pmac_awacs_get_tone_amp(struct snd_kcontrol *kcontrol, 410 struct snd_ctl_elem_value *ucontrol) 411 { 412 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 413 int index = kcontrol->private_value; 414 struct awacs_amp *amp = chip->mixer_data; 415 416 ucontrol->value.integer.value[0] = amp->amp_tone[index]; 417 return 0; 418 } 419 420 static int snd_pmac_awacs_put_tone_amp(struct snd_kcontrol *kcontrol, 421 struct snd_ctl_elem_value *ucontrol) 422 { 423 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 424 int index = kcontrol->private_value; 425 struct awacs_amp *amp = chip->mixer_data; 426 unsigned int val; 427 428 val = ucontrol->value.integer.value[0]; 429 if (val > 14) 430 return -EINVAL; 431 if (val != amp->amp_tone[index]) { 432 amp->amp_tone[index] = val; 433 awacs_amp_set_tone(amp, amp->amp_tone[0], amp->amp_tone[1]); 434 return 1; 435 } 436 return 0; 437 } 438 439 static int snd_pmac_awacs_info_master_amp(struct snd_kcontrol *kcontrol, 440 struct snd_ctl_elem_info *uinfo) 441 { 442 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 443 uinfo->count = 1; 444 uinfo->value.integer.min = 0; 445 uinfo->value.integer.max = 99; 446 return 0; 447 } 448 449 static int snd_pmac_awacs_get_master_amp(struct snd_kcontrol *kcontrol, 450 struct snd_ctl_elem_value *ucontrol) 451 { 452 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 453 struct awacs_amp *amp = chip->mixer_data; 454 455 ucontrol->value.integer.value[0] = amp->amp_master; 456 return 0; 457 } 458 459 static int snd_pmac_awacs_put_master_amp(struct snd_kcontrol *kcontrol, 460 struct snd_ctl_elem_value *ucontrol) 461 { 462 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 463 struct awacs_amp *amp = chip->mixer_data; 464 unsigned int val; 465 466 val = ucontrol->value.integer.value[0]; 467 if (val > 99) 468 return -EINVAL; 469 if (val != amp->amp_master) { 470 amp->amp_master = val; 471 awacs_amp_set_master(amp, amp->amp_master); 472 return 1; 473 } 474 return 0; 475 } 476 477 #define AMP_CH_SPK 0 478 #define AMP_CH_HD 1 479 480 static struct snd_kcontrol_new snd_pmac_awacs_amp_vol[] __devinitdata = { 481 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 482 .name = "Speaker Playback Volume", 483 .info = snd_pmac_awacs_info_volume_amp, 484 .get = snd_pmac_awacs_get_volume_amp, 485 .put = snd_pmac_awacs_put_volume_amp, 486 .private_value = AMP_CH_SPK, 487 }, 488 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 489 .name = "Headphone Playback Volume", 490 .info = snd_pmac_awacs_info_volume_amp, 491 .get = snd_pmac_awacs_get_volume_amp, 492 .put = snd_pmac_awacs_put_volume_amp, 493 .private_value = AMP_CH_HD, 494 }, 495 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 496 .name = "Tone Control - Bass", 497 .info = snd_pmac_awacs_info_tone_amp, 498 .get = snd_pmac_awacs_get_tone_amp, 499 .put = snd_pmac_awacs_put_tone_amp, 500 .private_value = 0, 501 }, 502 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 503 .name = "Tone Control - Treble", 504 .info = snd_pmac_awacs_info_tone_amp, 505 .get = snd_pmac_awacs_get_tone_amp, 506 .put = snd_pmac_awacs_put_tone_amp, 507 .private_value = 1, 508 }, 509 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 510 .name = "Amp Master Playback Volume", 511 .info = snd_pmac_awacs_info_master_amp, 512 .get = snd_pmac_awacs_get_master_amp, 513 .put = snd_pmac_awacs_put_master_amp, 514 }, 515 }; 516 517 static struct snd_kcontrol_new snd_pmac_awacs_amp_hp_sw __devinitdata = { 518 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 519 .name = "Headphone Playback Switch", 520 .info = snd_pmac_boolean_stereo_info, 521 .get = snd_pmac_awacs_get_switch_amp, 522 .put = snd_pmac_awacs_put_switch_amp, 523 .private_value = AMP_CH_HD, 524 }; 525 526 static struct snd_kcontrol_new snd_pmac_awacs_amp_spk_sw __devinitdata = { 527 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 528 .name = "Speaker Playback Switch", 529 .info = snd_pmac_boolean_stereo_info, 530 .get = snd_pmac_awacs_get_switch_amp, 531 .put = snd_pmac_awacs_put_switch_amp, 532 .private_value = AMP_CH_SPK, 533 }; 534 535 #endif /* PMAC_AMP_AVAIL */ 536 537 538 /* 539 * mic boost for screamer 540 */ 541 static int snd_pmac_screamer_mic_boost_info(struct snd_kcontrol *kcontrol, 542 struct snd_ctl_elem_info *uinfo) 543 { 544 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 545 uinfo->count = 1; 546 uinfo->value.integer.min = 0; 547 uinfo->value.integer.max = 3; 548 return 0; 549 } 550 551 static int snd_pmac_screamer_mic_boost_get(struct snd_kcontrol *kcontrol, 552 struct snd_ctl_elem_value *ucontrol) 553 { 554 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 555 int val = 0; 556 unsigned long flags; 557 558 spin_lock_irqsave(&chip->reg_lock, flags); 559 if (chip->awacs_reg[6] & MASK_MIC_BOOST) 560 val |= 2; 561 if (chip->awacs_reg[0] & MASK_GAINLINE) 562 val |= 1; 563 spin_unlock_irqrestore(&chip->reg_lock, flags); 564 ucontrol->value.integer.value[0] = val; 565 return 0; 566 } 567 568 static int snd_pmac_screamer_mic_boost_put(struct snd_kcontrol *kcontrol, 569 struct snd_ctl_elem_value *ucontrol) 570 { 571 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 572 int changed = 0; 573 int val0, val6; 574 unsigned long flags; 575 576 spin_lock_irqsave(&chip->reg_lock, flags); 577 val0 = chip->awacs_reg[0] & ~MASK_GAINLINE; 578 val6 = chip->awacs_reg[6] & ~MASK_MIC_BOOST; 579 if (ucontrol->value.integer.value[0] & 1) 580 val0 |= MASK_GAINLINE; 581 if (ucontrol->value.integer.value[0] & 2) 582 val6 |= MASK_MIC_BOOST; 583 if (val0 != chip->awacs_reg[0]) { 584 snd_pmac_awacs_write_reg(chip, 0, val0); 585 changed = 1; 586 } 587 if (val6 != chip->awacs_reg[6]) { 588 snd_pmac_awacs_write_reg(chip, 6, val6); 589 changed = 1; 590 } 591 spin_unlock_irqrestore(&chip->reg_lock, flags); 592 return changed; 593 } 594 595 /* 596 * lists of mixer elements 597 */ 598 static struct snd_kcontrol_new snd_pmac_awacs_mixers[] __devinitdata = { 599 AWACS_SWITCH("Master Capture Switch", 1, SHIFT_LOOPTHRU, 0), 600 AWACS_VOLUME("Master Capture Volume", 0, 4, 0), 601 /* AWACS_SWITCH("Unknown Playback Switch", 6, SHIFT_PAROUT0, 0), */ 602 }; 603 604 static struct snd_kcontrol_new snd_pmac_screamer_mixers_beige[] __devinitdata = { 605 AWACS_VOLUME("Master Playback Volume", 2, 6, 1), 606 AWACS_VOLUME("Play-through Playback Volume", 5, 6, 1), 607 AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0), 608 AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_LINE, 0), 609 }; 610 611 static struct snd_kcontrol_new snd_pmac_screamer_mixers_lo[] __devinitdata = { 612 AWACS_VOLUME("Line out Playback Volume", 2, 6, 1), 613 }; 614 615 static struct snd_kcontrol_new snd_pmac_screamer_mixers_imac[] __devinitdata = { 616 AWACS_VOLUME("Play-through Playback Volume", 5, 6, 1), 617 AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0), 618 }; 619 620 static struct snd_kcontrol_new snd_pmac_screamer_mixers_g4agp[] __devinitdata = { 621 AWACS_VOLUME("Line out Playback Volume", 2, 6, 1), 622 AWACS_VOLUME("Master Playback Volume", 5, 6, 1), 623 AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0), 624 AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0), 625 }; 626 627 static struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac7500[] __devinitdata = { 628 AWACS_VOLUME("Line out Playback Volume", 2, 6, 1), 629 AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0), 630 AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0), 631 }; 632 633 static struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac5500[] __devinitdata = { 634 AWACS_VOLUME("Headphone Playback Volume", 2, 6, 1), 635 }; 636 637 static struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac[] __devinitdata = { 638 AWACS_VOLUME("Master Playback Volume", 2, 6, 1), 639 AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0), 640 }; 641 642 /* FIXME: is this correct order? 643 * screamer (powerbook G3 pismo) seems to have different bits... 644 */ 645 static struct snd_kcontrol_new snd_pmac_awacs_mixers2[] __devinitdata = { 646 AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_LINE, 0), 647 AWACS_SWITCH("Mic Capture Switch", 0, SHIFT_MUX_MIC, 0), 648 }; 649 650 static struct snd_kcontrol_new snd_pmac_screamer_mixers2[] __devinitdata = { 651 AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0), 652 AWACS_SWITCH("Mic Capture Switch", 0, SHIFT_MUX_LINE, 0), 653 }; 654 655 static struct snd_kcontrol_new snd_pmac_awacs_mixers2_pmac5500[] __devinitdata = { 656 AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0), 657 }; 658 659 static struct snd_kcontrol_new snd_pmac_awacs_master_sw __devinitdata = 660 AWACS_SWITCH("Master Playback Switch", 1, SHIFT_HDMUTE, 1); 661 662 static struct snd_kcontrol_new snd_pmac_awacs_master_sw_imac __devinitdata = 663 AWACS_SWITCH("Line out Playback Switch", 1, SHIFT_HDMUTE, 1); 664 665 static struct snd_kcontrol_new snd_pmac_awacs_master_sw_pmac5500 __devinitdata = 666 AWACS_SWITCH("Headphone Playback Switch", 1, SHIFT_HDMUTE, 1); 667 668 static struct snd_kcontrol_new snd_pmac_awacs_mic_boost[] __devinitdata = { 669 AWACS_SWITCH("Mic Boost Capture Switch", 0, SHIFT_GAINLINE, 0), 670 }; 671 672 static struct snd_kcontrol_new snd_pmac_screamer_mic_boost[] __devinitdata = { 673 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 674 .name = "Mic Boost Capture Volume", 675 .info = snd_pmac_screamer_mic_boost_info, 676 .get = snd_pmac_screamer_mic_boost_get, 677 .put = snd_pmac_screamer_mic_boost_put, 678 }, 679 }; 680 681 static struct snd_kcontrol_new snd_pmac_awacs_mic_boost_pmac7500[] __devinitdata = 682 { 683 AWACS_SWITCH("Line Boost Capture Switch", 0, SHIFT_GAINLINE, 0), 684 }; 685 686 static struct snd_kcontrol_new snd_pmac_screamer_mic_boost_beige[] __devinitdata = 687 { 688 AWACS_SWITCH("Line Boost Capture Switch", 0, SHIFT_GAINLINE, 0), 689 AWACS_SWITCH("CD Boost Capture Switch", 6, SHIFT_MIC_BOOST, 0), 690 }; 691 692 static struct snd_kcontrol_new snd_pmac_screamer_mic_boost_imac[] __devinitdata = 693 { 694 AWACS_SWITCH("Line Boost Capture Switch", 0, SHIFT_GAINLINE, 0), 695 AWACS_SWITCH("Mic Boost Capture Switch", 6, SHIFT_MIC_BOOST, 0), 696 }; 697 698 static struct snd_kcontrol_new snd_pmac_awacs_speaker_vol[] __devinitdata = { 699 AWACS_VOLUME("Speaker Playback Volume", 4, 6, 1), 700 }; 701 702 static struct snd_kcontrol_new snd_pmac_awacs_speaker_sw __devinitdata = 703 AWACS_SWITCH("Speaker Playback Switch", 1, SHIFT_SPKMUTE, 1); 704 705 static struct snd_kcontrol_new snd_pmac_awacs_speaker_sw_imac1 __devinitdata = 706 AWACS_SWITCH("Speaker Playback Switch", 1, SHIFT_PAROUT1, 1); 707 708 static struct snd_kcontrol_new snd_pmac_awacs_speaker_sw_imac2 __devinitdata = 709 AWACS_SWITCH("Speaker Playback Switch", 1, SHIFT_PAROUT1, 0); 710 711 712 /* 713 * add new mixer elements to the card 714 */ 715 static int build_mixers(struct snd_pmac *chip, int nums, 716 struct snd_kcontrol_new *mixers) 717 { 718 int i, err; 719 720 for (i = 0; i < nums; i++) { 721 err = snd_ctl_add(chip->card, snd_ctl_new1(&mixers[i], chip)); 722 if (err < 0) 723 return err; 724 } 725 return 0; 726 } 727 728 729 /* 730 * restore all registers 731 */ 732 static void awacs_restore_all_regs(struct snd_pmac *chip) 733 { 734 snd_pmac_awacs_write_noreg(chip, 0, chip->awacs_reg[0]); 735 snd_pmac_awacs_write_noreg(chip, 1, chip->awacs_reg[1]); 736 snd_pmac_awacs_write_noreg(chip, 2, chip->awacs_reg[2]); 737 snd_pmac_awacs_write_noreg(chip, 4, chip->awacs_reg[4]); 738 if (chip->model == PMAC_SCREAMER) { 739 snd_pmac_awacs_write_noreg(chip, 5, chip->awacs_reg[5]); 740 snd_pmac_awacs_write_noreg(chip, 6, chip->awacs_reg[6]); 741 snd_pmac_awacs_write_noreg(chip, 7, chip->awacs_reg[7]); 742 } 743 } 744 745 #ifdef CONFIG_PM 746 static void snd_pmac_awacs_suspend(struct snd_pmac *chip) 747 { 748 snd_pmac_awacs_write_noreg(chip, 1, (chip->awacs_reg[1] 749 | MASK_AMUTE | MASK_CMUTE)); 750 } 751 752 static void snd_pmac_awacs_resume(struct snd_pmac *chip) 753 { 754 if (of_machine_is_compatible("PowerBook3,1") 755 || of_machine_is_compatible("PowerBook3,2")) { 756 msleep(100); 757 snd_pmac_awacs_write_reg(chip, 1, 758 chip->awacs_reg[1] & ~MASK_PAROUT); 759 msleep(300); 760 } 761 762 awacs_restore_all_regs(chip); 763 if (chip->model == PMAC_SCREAMER) { 764 /* reset power bits in reg 6 */ 765 mdelay(5); 766 snd_pmac_awacs_write_noreg(chip, 6, chip->awacs_reg[6]); 767 } 768 screamer_recalibrate(chip); 769 #ifdef PMAC_AMP_AVAIL 770 if (chip->mixer_data) { 771 struct awacs_amp *amp = chip->mixer_data; 772 awacs_amp_set_vol(amp, 0, 773 amp->amp_vol[0][0], amp->amp_vol[0][1], 0); 774 awacs_amp_set_vol(amp, 1, 775 amp->amp_vol[1][0], amp->amp_vol[1][1], 0); 776 awacs_amp_set_tone(amp, amp->amp_tone[0], amp->amp_tone[1]); 777 awacs_amp_set_master(amp, amp->amp_master); 778 } 779 #endif 780 } 781 #endif /* CONFIG_PM */ 782 783 #define IS_PM7500 (of_machine_is_compatible("AAPL,7500") \ 784 || of_machine_is_compatible("AAPL,8500") \ 785 || of_machine_is_compatible("AAPL,9500")) 786 #define IS_PM5500 (of_machine_is_compatible("AAPL,e411")) 787 #define IS_BEIGE (of_machine_is_compatible("AAPL,Gossamer")) 788 #define IS_IMAC1 (of_machine_is_compatible("PowerMac2,1")) 789 #define IS_IMAC2 (of_machine_is_compatible("PowerMac2,2") \ 790 || of_machine_is_compatible("PowerMac4,1")) 791 #define IS_G4AGP (of_machine_is_compatible("PowerMac3,1")) 792 #define IS_LOMBARD (of_machine_is_compatible("PowerBook1,1")) 793 794 static int imac1, imac2; 795 796 #ifdef PMAC_SUPPORT_AUTOMUTE 797 /* 798 * auto-mute stuffs 799 */ 800 static int snd_pmac_awacs_detect_headphone(struct snd_pmac *chip) 801 { 802 return (in_le32(&chip->awacs->codec_stat) & chip->hp_stat_mask) ? 1 : 0; 803 } 804 805 #ifdef PMAC_AMP_AVAIL 806 static int toggle_amp_mute(struct awacs_amp *amp, int index, int mute) 807 { 808 int vol[2]; 809 vol[0] = amp->amp_vol[index][0] & 31; 810 vol[1] = amp->amp_vol[index][1] & 31; 811 if (mute) { 812 vol[0] |= 32; 813 vol[1] |= 32; 814 } 815 return awacs_amp_set_vol(amp, index, vol[0], vol[1], 1); 816 } 817 #endif 818 819 static void snd_pmac_awacs_update_automute(struct snd_pmac *chip, int do_notify) 820 { 821 if (chip->auto_mute) { 822 #ifdef PMAC_AMP_AVAIL 823 if (chip->mixer_data) { 824 struct awacs_amp *amp = chip->mixer_data; 825 int changed; 826 if (snd_pmac_awacs_detect_headphone(chip)) { 827 changed = toggle_amp_mute(amp, AMP_CH_HD, 0); 828 changed |= toggle_amp_mute(amp, AMP_CH_SPK, 1); 829 } else { 830 changed = toggle_amp_mute(amp, AMP_CH_HD, 1); 831 changed |= toggle_amp_mute(amp, AMP_CH_SPK, 0); 832 } 833 if (do_notify && ! changed) 834 return; 835 } else 836 #endif 837 { 838 int reg = chip->awacs_reg[1] 839 | (MASK_HDMUTE | MASK_SPKMUTE); 840 if (imac1) { 841 reg &= ~MASK_SPKMUTE; 842 reg |= MASK_PAROUT1; 843 } else if (imac2) { 844 reg &= ~MASK_SPKMUTE; 845 reg &= ~MASK_PAROUT1; 846 } 847 if (snd_pmac_awacs_detect_headphone(chip)) 848 reg &= ~MASK_HDMUTE; 849 else if (imac1) 850 reg &= ~MASK_PAROUT1; 851 else if (imac2) 852 reg |= MASK_PAROUT1; 853 else 854 reg &= ~MASK_SPKMUTE; 855 if (do_notify && reg == chip->awacs_reg[1]) 856 return; 857 snd_pmac_awacs_write_reg(chip, 1, reg); 858 } 859 if (do_notify) { 860 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 861 &chip->master_sw_ctl->id); 862 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 863 &chip->speaker_sw_ctl->id); 864 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, 865 &chip->hp_detect_ctl->id); 866 } 867 } 868 } 869 #endif /* PMAC_SUPPORT_AUTOMUTE */ 870 871 872 /* 873 * initialize chip 874 */ 875 int __devinit 876 snd_pmac_awacs_init(struct snd_pmac *chip) 877 { 878 int pm7500 = IS_PM7500; 879 int pm5500 = IS_PM5500; 880 int beige = IS_BEIGE; 881 int g4agp = IS_G4AGP; 882 int lombard = IS_LOMBARD; 883 int imac; 884 int err, vol; 885 struct snd_kcontrol *vmaster_sw, *vmaster_vol; 886 struct snd_kcontrol *master_vol, *speaker_vol; 887 888 imac1 = IS_IMAC1; 889 imac2 = IS_IMAC2; 890 imac = imac1 || imac2; 891 /* looks like MASK_GAINLINE triggers something, so we set here 892 * as start-up 893 */ 894 chip->awacs_reg[0] = MASK_MUX_CD | 0xff | MASK_GAINLINE; 895 chip->awacs_reg[1] = MASK_CMUTE | MASK_AMUTE; 896 /* FIXME: Only machines with external SRS module need MASK_PAROUT */ 897 if (chip->has_iic || chip->device_id == 0x5 || 898 /* chip->_device_id == 0x8 || */ 899 chip->device_id == 0xb) 900 chip->awacs_reg[1] |= MASK_PAROUT; 901 /* get default volume from nvram */ 902 // vol = (~nvram_read_byte(0x1308) & 7) << 1; 903 // vol = ((pmac_xpram_read( 8 ) & 7 ) << 1 ); 904 vol = 0x0f; /* no, on alsa, muted as default */ 905 vol = vol + (vol << 6); 906 chip->awacs_reg[2] = vol; 907 chip->awacs_reg[4] = vol; 908 if (chip->model == PMAC_SCREAMER) { 909 /* FIXME: screamer has loopthru vol control */ 910 chip->awacs_reg[5] = vol; 911 /* FIXME: maybe should be vol << 3 for PCMCIA speaker */ 912 chip->awacs_reg[6] = MASK_MIC_BOOST; 913 chip->awacs_reg[7] = 0; 914 } 915 916 awacs_restore_all_regs(chip); 917 chip->manufacturer = (in_le32(&chip->awacs->codec_stat) >> 8) & 0xf; 918 screamer_recalibrate(chip); 919 920 chip->revision = (in_le32(&chip->awacs->codec_stat) >> 12) & 0xf; 921 #ifdef PMAC_AMP_AVAIL 922 if (chip->revision == 3 && chip->has_iic && CHECK_CUDA_AMP()) { 923 struct awacs_amp *amp = kzalloc(sizeof(*amp), GFP_KERNEL); 924 if (! amp) 925 return -ENOMEM; 926 chip->mixer_data = amp; 927 chip->mixer_free = awacs_amp_free; 928 /* mute and zero vol */ 929 awacs_amp_set_vol(amp, 0, 63, 63, 0); 930 awacs_amp_set_vol(amp, 1, 63, 63, 0); 931 awacs_amp_set_tone(amp, 7, 7); /* 0 dB */ 932 awacs_amp_set_master(amp, 79); /* 0 dB */ 933 } 934 #endif /* PMAC_AMP_AVAIL */ 935 936 if (chip->hp_stat_mask == 0) { 937 /* set headphone-jack detection bit */ 938 switch (chip->model) { 939 case PMAC_AWACS: 940 chip->hp_stat_mask = pm7500 || pm5500 ? MASK_HDPCONN 941 : MASK_LOCONN; 942 break; 943 case PMAC_SCREAMER: 944 switch (chip->device_id) { 945 case 0x08: 946 case 0x0B: 947 chip->hp_stat_mask = imac 948 ? MASK_LOCONN_IMAC | 949 MASK_HDPLCONN_IMAC | 950 MASK_HDPRCONN_IMAC 951 : MASK_HDPCONN; 952 break; 953 case 0x00: 954 case 0x05: 955 chip->hp_stat_mask = MASK_LOCONN; 956 break; 957 default: 958 chip->hp_stat_mask = MASK_HDPCONN; 959 break; 960 } 961 break; 962 default: 963 snd_BUG(); 964 break; 965 } 966 } 967 968 /* 969 * build mixers 970 */ 971 strcpy(chip->card->mixername, "PowerMac AWACS"); 972 973 err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_mixers), 974 snd_pmac_awacs_mixers); 975 if (err < 0) 976 return err; 977 if (beige || g4agp) 978 ; 979 else if (chip->model == PMAC_SCREAMER || pm5500) 980 err = build_mixers(chip, ARRAY_SIZE(snd_pmac_screamer_mixers2), 981 snd_pmac_screamer_mixers2); 982 else if (!pm7500) 983 err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_mixers2), 984 snd_pmac_awacs_mixers2); 985 if (err < 0) 986 return err; 987 if (pm5500) { 988 err = build_mixers(chip, 989 ARRAY_SIZE(snd_pmac_awacs_mixers2_pmac5500), 990 snd_pmac_awacs_mixers2_pmac5500); 991 if (err < 0) 992 return err; 993 } 994 if (pm7500) 995 err = build_mixers(chip, 996 ARRAY_SIZE(snd_pmac_awacs_mixers_pmac7500), 997 snd_pmac_awacs_mixers_pmac7500); 998 else if (pm5500) 999 err = snd_ctl_add(chip->card, 1000 (master_vol = snd_ctl_new1(snd_pmac_awacs_mixers_pmac5500, 1001 chip))); 1002 else if (beige) 1003 err = build_mixers(chip, 1004 ARRAY_SIZE(snd_pmac_screamer_mixers_beige), 1005 snd_pmac_screamer_mixers_beige); 1006 else if (imac || lombard) { 1007 err = snd_ctl_add(chip->card, 1008 (master_vol = snd_ctl_new1(snd_pmac_screamer_mixers_lo, 1009 chip))); 1010 if (err < 0) 1011 return err; 1012 err = build_mixers(chip, 1013 ARRAY_SIZE(snd_pmac_screamer_mixers_imac), 1014 snd_pmac_screamer_mixers_imac); 1015 } else if (g4agp) 1016 err = build_mixers(chip, 1017 ARRAY_SIZE(snd_pmac_screamer_mixers_g4agp), 1018 snd_pmac_screamer_mixers_g4agp); 1019 else 1020 err = build_mixers(chip, 1021 ARRAY_SIZE(snd_pmac_awacs_mixers_pmac), 1022 snd_pmac_awacs_mixers_pmac); 1023 if (err < 0) 1024 return err; 1025 chip->master_sw_ctl = snd_ctl_new1((pm7500 || imac || g4agp || lombard) 1026 ? &snd_pmac_awacs_master_sw_imac 1027 : pm5500 1028 ? &snd_pmac_awacs_master_sw_pmac5500 1029 : &snd_pmac_awacs_master_sw, chip); 1030 err = snd_ctl_add(chip->card, chip->master_sw_ctl); 1031 if (err < 0) 1032 return err; 1033 #ifdef PMAC_AMP_AVAIL 1034 if (chip->mixer_data) { 1035 /* use amplifier. the signal is connected from route A 1036 * to the amp. the amp has its headphone and speaker 1037 * volumes and mute switches, so we use them instead of 1038 * screamer registers. 1039 * in this case, it seems the route C is not used. 1040 */ 1041 err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_amp_vol), 1042 snd_pmac_awacs_amp_vol); 1043 if (err < 0) 1044 return err; 1045 /* overwrite */ 1046 chip->master_sw_ctl = snd_ctl_new1(&snd_pmac_awacs_amp_hp_sw, 1047 chip); 1048 err = snd_ctl_add(chip->card, chip->master_sw_ctl); 1049 if (err < 0) 1050 return err; 1051 chip->speaker_sw_ctl = snd_ctl_new1(&snd_pmac_awacs_amp_spk_sw, 1052 chip); 1053 err = snd_ctl_add(chip->card, chip->speaker_sw_ctl); 1054 if (err < 0) 1055 return err; 1056 } else 1057 #endif /* PMAC_AMP_AVAIL */ 1058 { 1059 /* route A = headphone, route C = speaker */ 1060 err = snd_ctl_add(chip->card, 1061 (speaker_vol = snd_ctl_new1(snd_pmac_awacs_speaker_vol, 1062 chip))); 1063 if (err < 0) 1064 return err; 1065 chip->speaker_sw_ctl = snd_ctl_new1(imac1 1066 ? &snd_pmac_awacs_speaker_sw_imac1 1067 : imac2 1068 ? &snd_pmac_awacs_speaker_sw_imac2 1069 : &snd_pmac_awacs_speaker_sw, chip); 1070 err = snd_ctl_add(chip->card, chip->speaker_sw_ctl); 1071 if (err < 0) 1072 return err; 1073 } 1074 1075 if (pm5500 || imac || lombard) { 1076 vmaster_sw = snd_ctl_make_virtual_master( 1077 "Master Playback Switch", (unsigned int *) NULL); 1078 err = snd_ctl_add_slave_uncached(vmaster_sw, 1079 chip->master_sw_ctl); 1080 if (err < 0) 1081 return err; 1082 err = snd_ctl_add_slave_uncached(vmaster_sw, 1083 chip->speaker_sw_ctl); 1084 if (err < 0) 1085 return err; 1086 err = snd_ctl_add(chip->card, vmaster_sw); 1087 if (err < 0) 1088 return err; 1089 vmaster_vol = snd_ctl_make_virtual_master( 1090 "Master Playback Volume", (unsigned int *) NULL); 1091 err = snd_ctl_add_slave(vmaster_vol, master_vol); 1092 if (err < 0) 1093 return err; 1094 err = snd_ctl_add_slave(vmaster_vol, speaker_vol); 1095 if (err < 0) 1096 return err; 1097 err = snd_ctl_add(chip->card, vmaster_vol); 1098 if (err < 0) 1099 return err; 1100 } 1101 1102 if (beige || g4agp) 1103 err = build_mixers(chip, 1104 ARRAY_SIZE(snd_pmac_screamer_mic_boost_beige), 1105 snd_pmac_screamer_mic_boost_beige); 1106 else if (imac) 1107 err = build_mixers(chip, 1108 ARRAY_SIZE(snd_pmac_screamer_mic_boost_imac), 1109 snd_pmac_screamer_mic_boost_imac); 1110 else if (chip->model == PMAC_SCREAMER) 1111 err = build_mixers(chip, 1112 ARRAY_SIZE(snd_pmac_screamer_mic_boost), 1113 snd_pmac_screamer_mic_boost); 1114 else if (pm7500) 1115 err = build_mixers(chip, 1116 ARRAY_SIZE(snd_pmac_awacs_mic_boost_pmac7500), 1117 snd_pmac_awacs_mic_boost_pmac7500); 1118 else 1119 err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_mic_boost), 1120 snd_pmac_awacs_mic_boost); 1121 if (err < 0) 1122 return err; 1123 1124 /* 1125 * set lowlevel callbacks 1126 */ 1127 chip->set_format = snd_pmac_awacs_set_format; 1128 #ifdef CONFIG_PM 1129 chip->suspend = snd_pmac_awacs_suspend; 1130 chip->resume = snd_pmac_awacs_resume; 1131 #endif 1132 #ifdef PMAC_SUPPORT_AUTOMUTE 1133 err = snd_pmac_add_automute(chip); 1134 if (err < 0) 1135 return err; 1136 chip->detect_headphone = snd_pmac_awacs_detect_headphone; 1137 chip->update_automute = snd_pmac_awacs_update_automute; 1138 snd_pmac_awacs_update_automute(chip, 0); /* update the status only */ 1139 #endif 1140 if (chip->model == PMAC_SCREAMER) { 1141 snd_pmac_awacs_write_noreg(chip, 6, chip->awacs_reg[6]); 1142 snd_pmac_awacs_write_noreg(chip, 0, chip->awacs_reg[0]); 1143 } 1144 1145 return 0; 1146 } 1147