1 /* 2 * PMac DBDMA 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/irq.h> 25 #include <linux/init.h> 26 #include <linux/delay.h> 27 #include <linux/slab.h> 28 #include <linux/interrupt.h> 29 #include <linux/pci.h> 30 #include <linux/dma-mapping.h> 31 #include <sound/core.h> 32 #include "pmac.h" 33 #include <sound/pcm_params.h> 34 #include <asm/pmac_feature.h> 35 #include <asm/pci-bridge.h> 36 37 38 /* fixed frequency table for awacs, screamer, burgundy, DACA (44100 max) */ 39 static int awacs_freqs[8] = { 40 44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350 41 }; 42 /* fixed frequency table for tumbler */ 43 static int tumbler_freqs[1] = { 44 44100 45 }; 46 47 /* 48 * allocate DBDMA command arrays 49 */ 50 static int snd_pmac_dbdma_alloc(struct snd_pmac *chip, struct pmac_dbdma *rec, int size) 51 { 52 unsigned int rsize = sizeof(struct dbdma_cmd) * (size + 1); 53 54 rec->space = dma_alloc_coherent(&chip->pdev->dev, rsize, 55 &rec->dma_base, GFP_KERNEL); 56 if (rec->space == NULL) 57 return -ENOMEM; 58 rec->size = size; 59 memset(rec->space, 0, rsize); 60 rec->cmds = (void __iomem *)DBDMA_ALIGN(rec->space); 61 rec->addr = rec->dma_base + (unsigned long)((char *)rec->cmds - (char *)rec->space); 62 63 return 0; 64 } 65 66 static void snd_pmac_dbdma_free(struct snd_pmac *chip, struct pmac_dbdma *rec) 67 { 68 if (rec->space) { 69 unsigned int rsize = sizeof(struct dbdma_cmd) * (rec->size + 1); 70 71 dma_free_coherent(&chip->pdev->dev, rsize, rec->space, rec->dma_base); 72 } 73 } 74 75 76 /* 77 * pcm stuff 78 */ 79 80 /* 81 * look up frequency table 82 */ 83 84 unsigned int snd_pmac_rate_index(struct snd_pmac *chip, struct pmac_stream *rec, unsigned int rate) 85 { 86 int i, ok, found; 87 88 ok = rec->cur_freqs; 89 if (rate > chip->freq_table[0]) 90 return 0; 91 found = 0; 92 for (i = 0; i < chip->num_freqs; i++, ok >>= 1) { 93 if (! (ok & 1)) continue; 94 found = i; 95 if (rate >= chip->freq_table[i]) 96 break; 97 } 98 return found; 99 } 100 101 /* 102 * check whether another stream is active 103 */ 104 static inline int another_stream(int stream) 105 { 106 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ? 107 SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; 108 } 109 110 /* 111 * allocate buffers 112 */ 113 static int snd_pmac_pcm_hw_params(struct snd_pcm_substream *subs, 114 struct snd_pcm_hw_params *hw_params) 115 { 116 return snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw_params)); 117 } 118 119 /* 120 * release buffers 121 */ 122 static int snd_pmac_pcm_hw_free(struct snd_pcm_substream *subs) 123 { 124 snd_pcm_lib_free_pages(subs); 125 return 0; 126 } 127 128 /* 129 * get a stream of the opposite direction 130 */ 131 static struct pmac_stream *snd_pmac_get_stream(struct snd_pmac *chip, int stream) 132 { 133 switch (stream) { 134 case SNDRV_PCM_STREAM_PLAYBACK: 135 return &chip->playback; 136 case SNDRV_PCM_STREAM_CAPTURE: 137 return &chip->capture; 138 default: 139 snd_BUG(); 140 return NULL; 141 } 142 } 143 144 /* 145 * wait while run status is on 146 */ 147 static inline void 148 snd_pmac_wait_ack(struct pmac_stream *rec) 149 { 150 int timeout = 50000; 151 while ((in_le32(&rec->dma->status) & RUN) && timeout-- > 0) 152 udelay(1); 153 } 154 155 /* 156 * set the format and rate to the chip. 157 * call the lowlevel function if defined (e.g. for AWACS). 158 */ 159 static void snd_pmac_pcm_set_format(struct snd_pmac *chip) 160 { 161 /* set up frequency and format */ 162 out_le32(&chip->awacs->control, chip->control_mask | (chip->rate_index << 8)); 163 out_le32(&chip->awacs->byteswap, chip->format == SNDRV_PCM_FORMAT_S16_LE ? 1 : 0); 164 if (chip->set_format) 165 chip->set_format(chip); 166 } 167 168 /* 169 * stop the DMA transfer 170 */ 171 static inline void snd_pmac_dma_stop(struct pmac_stream *rec) 172 { 173 out_le32(&rec->dma->control, (RUN|WAKE|FLUSH|PAUSE) << 16); 174 snd_pmac_wait_ack(rec); 175 } 176 177 /* 178 * set the command pointer address 179 */ 180 static inline void snd_pmac_dma_set_command(struct pmac_stream *rec, struct pmac_dbdma *cmd) 181 { 182 out_le32(&rec->dma->cmdptr, cmd->addr); 183 } 184 185 /* 186 * start the DMA 187 */ 188 static inline void snd_pmac_dma_run(struct pmac_stream *rec, int status) 189 { 190 out_le32(&rec->dma->control, status | (status << 16)); 191 } 192 193 194 /* 195 * prepare playback/capture stream 196 */ 197 static int snd_pmac_pcm_prepare(struct snd_pmac *chip, struct pmac_stream *rec, struct snd_pcm_substream *subs) 198 { 199 int i; 200 volatile struct dbdma_cmd __iomem *cp; 201 struct snd_pcm_runtime *runtime = subs->runtime; 202 int rate_index; 203 long offset; 204 struct pmac_stream *astr; 205 206 rec->dma_size = snd_pcm_lib_buffer_bytes(subs); 207 rec->period_size = snd_pcm_lib_period_bytes(subs); 208 rec->nperiods = rec->dma_size / rec->period_size; 209 rec->cur_period = 0; 210 rate_index = snd_pmac_rate_index(chip, rec, runtime->rate); 211 212 /* set up constraints */ 213 astr = snd_pmac_get_stream(chip, another_stream(rec->stream)); 214 if (! astr) 215 return -EINVAL; 216 astr->cur_freqs = 1 << rate_index; 217 astr->cur_formats = 1 << runtime->format; 218 chip->rate_index = rate_index; 219 chip->format = runtime->format; 220 221 /* We really want to execute a DMA stop command, after the AWACS 222 * is initialized. 223 * For reasons I don't understand, it stops the hissing noise 224 * common to many PowerBook G3 systems and random noise otherwise 225 * captured on iBook2's about every third time. -ReneR 226 */ 227 spin_lock_irq(&chip->reg_lock); 228 snd_pmac_dma_stop(rec); 229 st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP); 230 snd_pmac_dma_set_command(rec, &chip->extra_dma); 231 snd_pmac_dma_run(rec, RUN); 232 spin_unlock_irq(&chip->reg_lock); 233 mdelay(5); 234 spin_lock_irq(&chip->reg_lock); 235 /* continuous DMA memory type doesn't provide the physical address, 236 * so we need to resolve the address here... 237 */ 238 offset = runtime->dma_addr; 239 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) { 240 st_le32(&cp->phy_addr, offset); 241 st_le16(&cp->req_count, rec->period_size); 242 /*st_le16(&cp->res_count, 0);*/ 243 st_le16(&cp->xfer_status, 0); 244 offset += rec->period_size; 245 } 246 /* make loop */ 247 st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS); 248 st_le32(&cp->cmd_dep, rec->cmd.addr); 249 250 snd_pmac_dma_stop(rec); 251 snd_pmac_dma_set_command(rec, &rec->cmd); 252 spin_unlock_irq(&chip->reg_lock); 253 254 return 0; 255 } 256 257 258 /* 259 * PCM trigger/stop 260 */ 261 static int snd_pmac_pcm_trigger(struct snd_pmac *chip, struct pmac_stream *rec, 262 struct snd_pcm_substream *subs, int cmd) 263 { 264 volatile struct dbdma_cmd __iomem *cp; 265 int i, command; 266 267 switch (cmd) { 268 case SNDRV_PCM_TRIGGER_START: 269 case SNDRV_PCM_TRIGGER_RESUME: 270 if (rec->running) 271 return -EBUSY; 272 command = (subs->stream == SNDRV_PCM_STREAM_PLAYBACK ? 273 OUTPUT_MORE : INPUT_MORE) + INTR_ALWAYS; 274 spin_lock(&chip->reg_lock); 275 snd_pmac_beep_stop(chip); 276 snd_pmac_pcm_set_format(chip); 277 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) 278 out_le16(&cp->command, command); 279 snd_pmac_dma_set_command(rec, &rec->cmd); 280 (void)in_le32(&rec->dma->status); 281 snd_pmac_dma_run(rec, RUN|WAKE); 282 rec->running = 1; 283 spin_unlock(&chip->reg_lock); 284 break; 285 286 case SNDRV_PCM_TRIGGER_STOP: 287 case SNDRV_PCM_TRIGGER_SUSPEND: 288 spin_lock(&chip->reg_lock); 289 rec->running = 0; 290 /*printk("stopped!!\n");*/ 291 snd_pmac_dma_stop(rec); 292 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) 293 out_le16(&cp->command, DBDMA_STOP); 294 spin_unlock(&chip->reg_lock); 295 break; 296 297 default: 298 return -EINVAL; 299 } 300 301 return 0; 302 } 303 304 /* 305 * return the current pointer 306 */ 307 inline 308 static snd_pcm_uframes_t snd_pmac_pcm_pointer(struct snd_pmac *chip, 309 struct pmac_stream *rec, 310 struct snd_pcm_substream *subs) 311 { 312 int count = 0; 313 314 #if 1 /* hmm.. how can we get the current dma pointer?? */ 315 int stat; 316 volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period]; 317 stat = ld_le16(&cp->xfer_status); 318 if (stat & (ACTIVE|DEAD)) { 319 count = in_le16(&cp->res_count); 320 if (count) 321 count = rec->period_size - count; 322 } 323 #endif 324 count += rec->cur_period * rec->period_size; 325 /*printk("pointer=%d\n", count);*/ 326 return bytes_to_frames(subs->runtime, count); 327 } 328 329 /* 330 * playback 331 */ 332 333 static int snd_pmac_playback_prepare(struct snd_pcm_substream *subs) 334 { 335 struct snd_pmac *chip = snd_pcm_substream_chip(subs); 336 return snd_pmac_pcm_prepare(chip, &chip->playback, subs); 337 } 338 339 static int snd_pmac_playback_trigger(struct snd_pcm_substream *subs, 340 int cmd) 341 { 342 struct snd_pmac *chip = snd_pcm_substream_chip(subs); 343 return snd_pmac_pcm_trigger(chip, &chip->playback, subs, cmd); 344 } 345 346 static snd_pcm_uframes_t snd_pmac_playback_pointer(struct snd_pcm_substream *subs) 347 { 348 struct snd_pmac *chip = snd_pcm_substream_chip(subs); 349 return snd_pmac_pcm_pointer(chip, &chip->playback, subs); 350 } 351 352 353 /* 354 * capture 355 */ 356 357 static int snd_pmac_capture_prepare(struct snd_pcm_substream *subs) 358 { 359 struct snd_pmac *chip = snd_pcm_substream_chip(subs); 360 return snd_pmac_pcm_prepare(chip, &chip->capture, subs); 361 } 362 363 static int snd_pmac_capture_trigger(struct snd_pcm_substream *subs, 364 int cmd) 365 { 366 struct snd_pmac *chip = snd_pcm_substream_chip(subs); 367 return snd_pmac_pcm_trigger(chip, &chip->capture, subs, cmd); 368 } 369 370 static snd_pcm_uframes_t snd_pmac_capture_pointer(struct snd_pcm_substream *subs) 371 { 372 struct snd_pmac *chip = snd_pcm_substream_chip(subs); 373 return snd_pmac_pcm_pointer(chip, &chip->capture, subs); 374 } 375 376 377 /* 378 * update playback/capture pointer from interrupts 379 */ 380 static void snd_pmac_pcm_update(struct snd_pmac *chip, struct pmac_stream *rec) 381 { 382 volatile struct dbdma_cmd __iomem *cp; 383 int c; 384 int stat; 385 386 spin_lock(&chip->reg_lock); 387 if (rec->running) { 388 cp = &rec->cmd.cmds[rec->cur_period]; 389 for (c = 0; c < rec->nperiods; c++) { /* at most all fragments */ 390 stat = ld_le16(&cp->xfer_status); 391 if (! (stat & ACTIVE)) 392 break; 393 /*printk("update frag %d\n", rec->cur_period);*/ 394 st_le16(&cp->xfer_status, 0); 395 st_le16(&cp->req_count, rec->period_size); 396 /*st_le16(&cp->res_count, 0);*/ 397 rec->cur_period++; 398 if (rec->cur_period >= rec->nperiods) { 399 rec->cur_period = 0; 400 cp = rec->cmd.cmds; 401 } else 402 cp++; 403 spin_unlock(&chip->reg_lock); 404 snd_pcm_period_elapsed(rec->substream); 405 spin_lock(&chip->reg_lock); 406 } 407 } 408 spin_unlock(&chip->reg_lock); 409 } 410 411 412 /* 413 * hw info 414 */ 415 416 static struct snd_pcm_hardware snd_pmac_playback = 417 { 418 .info = (SNDRV_PCM_INFO_INTERLEAVED | 419 SNDRV_PCM_INFO_MMAP | 420 SNDRV_PCM_INFO_MMAP_VALID | 421 SNDRV_PCM_INFO_RESUME), 422 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE, 423 .rates = SNDRV_PCM_RATE_8000_44100, 424 .rate_min = 7350, 425 .rate_max = 44100, 426 .channels_min = 2, 427 .channels_max = 2, 428 .buffer_bytes_max = 131072, 429 .period_bytes_min = 256, 430 .period_bytes_max = 16384, 431 .periods_min = 3, 432 .periods_max = PMAC_MAX_FRAGS, 433 }; 434 435 static struct snd_pcm_hardware snd_pmac_capture = 436 { 437 .info = (SNDRV_PCM_INFO_INTERLEAVED | 438 SNDRV_PCM_INFO_MMAP | 439 SNDRV_PCM_INFO_MMAP_VALID | 440 SNDRV_PCM_INFO_RESUME), 441 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE, 442 .rates = SNDRV_PCM_RATE_8000_44100, 443 .rate_min = 7350, 444 .rate_max = 44100, 445 .channels_min = 2, 446 .channels_max = 2, 447 .buffer_bytes_max = 131072, 448 .period_bytes_min = 256, 449 .period_bytes_max = 16384, 450 .periods_min = 3, 451 .periods_max = PMAC_MAX_FRAGS, 452 }; 453 454 455 #if 0 // NYI 456 static int snd_pmac_hw_rule_rate(struct snd_pcm_hw_params *params, 457 struct snd_pcm_hw_rule *rule) 458 { 459 struct snd_pmac *chip = rule->private; 460 struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]); 461 int i, freq_table[8], num_freqs; 462 463 if (! rec) 464 return -EINVAL; 465 num_freqs = 0; 466 for (i = chip->num_freqs - 1; i >= 0; i--) { 467 if (rec->cur_freqs & (1 << i)) 468 freq_table[num_freqs++] = chip->freq_table[i]; 469 } 470 471 return snd_interval_list(hw_param_interval(params, rule->var), 472 num_freqs, freq_table, 0); 473 } 474 475 static int snd_pmac_hw_rule_format(struct snd_pcm_hw_params *params, 476 struct snd_pcm_hw_rule *rule) 477 { 478 struct snd_pmac *chip = rule->private; 479 struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]); 480 481 if (! rec) 482 return -EINVAL; 483 return snd_mask_refine_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), 484 rec->cur_formats); 485 } 486 #endif // NYI 487 488 static int snd_pmac_pcm_open(struct snd_pmac *chip, struct pmac_stream *rec, 489 struct snd_pcm_substream *subs) 490 { 491 struct snd_pcm_runtime *runtime = subs->runtime; 492 int i; 493 494 /* look up frequency table and fill bit mask */ 495 runtime->hw.rates = 0; 496 for (i = 0; i < chip->num_freqs; i++) 497 if (chip->freqs_ok & (1 << i)) 498 runtime->hw.rates |= 499 snd_pcm_rate_to_rate_bit(chip->freq_table[i]); 500 501 /* check for minimum and maximum rates */ 502 for (i = 0; i < chip->num_freqs; i++) { 503 if (chip->freqs_ok & (1 << i)) { 504 runtime->hw.rate_max = chip->freq_table[i]; 505 break; 506 } 507 } 508 for (i = chip->num_freqs - 1; i >= 0; i--) { 509 if (chip->freqs_ok & (1 << i)) { 510 runtime->hw.rate_min = chip->freq_table[i]; 511 break; 512 } 513 } 514 runtime->hw.formats = chip->formats_ok; 515 if (chip->can_capture) { 516 if (! chip->can_duplex) 517 runtime->hw.info |= SNDRV_PCM_INFO_HALF_DUPLEX; 518 runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; 519 } 520 runtime->private_data = rec; 521 rec->substream = subs; 522 523 #if 0 /* FIXME: still under development.. */ 524 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 525 snd_pmac_hw_rule_rate, chip, rec->stream, -1); 526 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT, 527 snd_pmac_hw_rule_format, chip, rec->stream, -1); 528 #endif 529 530 runtime->hw.periods_max = rec->cmd.size - 1; 531 532 /* constraints to fix choppy sound */ 533 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); 534 return 0; 535 } 536 537 static int snd_pmac_pcm_close(struct snd_pmac *chip, struct pmac_stream *rec, 538 struct snd_pcm_substream *subs) 539 { 540 struct pmac_stream *astr; 541 542 snd_pmac_dma_stop(rec); 543 544 astr = snd_pmac_get_stream(chip, another_stream(rec->stream)); 545 if (! astr) 546 return -EINVAL; 547 548 /* reset constraints */ 549 astr->cur_freqs = chip->freqs_ok; 550 astr->cur_formats = chip->formats_ok; 551 552 return 0; 553 } 554 555 static int snd_pmac_playback_open(struct snd_pcm_substream *subs) 556 { 557 struct snd_pmac *chip = snd_pcm_substream_chip(subs); 558 559 subs->runtime->hw = snd_pmac_playback; 560 return snd_pmac_pcm_open(chip, &chip->playback, subs); 561 } 562 563 static int snd_pmac_capture_open(struct snd_pcm_substream *subs) 564 { 565 struct snd_pmac *chip = snd_pcm_substream_chip(subs); 566 567 subs->runtime->hw = snd_pmac_capture; 568 return snd_pmac_pcm_open(chip, &chip->capture, subs); 569 } 570 571 static int snd_pmac_playback_close(struct snd_pcm_substream *subs) 572 { 573 struct snd_pmac *chip = snd_pcm_substream_chip(subs); 574 575 return snd_pmac_pcm_close(chip, &chip->playback, subs); 576 } 577 578 static int snd_pmac_capture_close(struct snd_pcm_substream *subs) 579 { 580 struct snd_pmac *chip = snd_pcm_substream_chip(subs); 581 582 return snd_pmac_pcm_close(chip, &chip->capture, subs); 583 } 584 585 /* 586 */ 587 588 static struct snd_pcm_ops snd_pmac_playback_ops = { 589 .open = snd_pmac_playback_open, 590 .close = snd_pmac_playback_close, 591 .ioctl = snd_pcm_lib_ioctl, 592 .hw_params = snd_pmac_pcm_hw_params, 593 .hw_free = snd_pmac_pcm_hw_free, 594 .prepare = snd_pmac_playback_prepare, 595 .trigger = snd_pmac_playback_trigger, 596 .pointer = snd_pmac_playback_pointer, 597 }; 598 599 static struct snd_pcm_ops snd_pmac_capture_ops = { 600 .open = snd_pmac_capture_open, 601 .close = snd_pmac_capture_close, 602 .ioctl = snd_pcm_lib_ioctl, 603 .hw_params = snd_pmac_pcm_hw_params, 604 .hw_free = snd_pmac_pcm_hw_free, 605 .prepare = snd_pmac_capture_prepare, 606 .trigger = snd_pmac_capture_trigger, 607 .pointer = snd_pmac_capture_pointer, 608 }; 609 610 int __init snd_pmac_pcm_new(struct snd_pmac *chip) 611 { 612 struct snd_pcm *pcm; 613 int err; 614 int num_captures = 1; 615 616 if (! chip->can_capture) 617 num_captures = 0; 618 err = snd_pcm_new(chip->card, chip->card->driver, 0, 1, num_captures, &pcm); 619 if (err < 0) 620 return err; 621 622 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_pmac_playback_ops); 623 if (chip->can_capture) 624 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_pmac_capture_ops); 625 626 pcm->private_data = chip; 627 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; 628 strcpy(pcm->name, chip->card->shortname); 629 chip->pcm = pcm; 630 631 chip->formats_ok = SNDRV_PCM_FMTBIT_S16_BE; 632 if (chip->can_byte_swap) 633 chip->formats_ok |= SNDRV_PCM_FMTBIT_S16_LE; 634 635 chip->playback.cur_formats = chip->formats_ok; 636 chip->capture.cur_formats = chip->formats_ok; 637 chip->playback.cur_freqs = chip->freqs_ok; 638 chip->capture.cur_freqs = chip->freqs_ok; 639 640 /* preallocate 64k buffer */ 641 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 642 &chip->pdev->dev, 643 64 * 1024, 64 * 1024); 644 645 return 0; 646 } 647 648 649 static void snd_pmac_dbdma_reset(struct snd_pmac *chip) 650 { 651 out_le32(&chip->playback.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16); 652 snd_pmac_wait_ack(&chip->playback); 653 out_le32(&chip->capture.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16); 654 snd_pmac_wait_ack(&chip->capture); 655 } 656 657 658 /* 659 * handling beep 660 */ 661 void snd_pmac_beep_dma_start(struct snd_pmac *chip, int bytes, unsigned long addr, int speed) 662 { 663 struct pmac_stream *rec = &chip->playback; 664 665 snd_pmac_dma_stop(rec); 666 st_le16(&chip->extra_dma.cmds->req_count, bytes); 667 st_le16(&chip->extra_dma.cmds->xfer_status, 0); 668 st_le32(&chip->extra_dma.cmds->cmd_dep, chip->extra_dma.addr); 669 st_le32(&chip->extra_dma.cmds->phy_addr, addr); 670 st_le16(&chip->extra_dma.cmds->command, OUTPUT_MORE + BR_ALWAYS); 671 out_le32(&chip->awacs->control, 672 (in_le32(&chip->awacs->control) & ~0x1f00) 673 | (speed << 8)); 674 out_le32(&chip->awacs->byteswap, 0); 675 snd_pmac_dma_set_command(rec, &chip->extra_dma); 676 snd_pmac_dma_run(rec, RUN); 677 } 678 679 void snd_pmac_beep_dma_stop(struct snd_pmac *chip) 680 { 681 snd_pmac_dma_stop(&chip->playback); 682 st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP); 683 snd_pmac_pcm_set_format(chip); /* reset format */ 684 } 685 686 687 /* 688 * interrupt handlers 689 */ 690 static irqreturn_t 691 snd_pmac_tx_intr(int irq, void *devid) 692 { 693 struct snd_pmac *chip = devid; 694 snd_pmac_pcm_update(chip, &chip->playback); 695 return IRQ_HANDLED; 696 } 697 698 699 static irqreturn_t 700 snd_pmac_rx_intr(int irq, void *devid) 701 { 702 struct snd_pmac *chip = devid; 703 snd_pmac_pcm_update(chip, &chip->capture); 704 return IRQ_HANDLED; 705 } 706 707 708 static irqreturn_t 709 snd_pmac_ctrl_intr(int irq, void *devid) 710 { 711 struct snd_pmac *chip = devid; 712 int ctrl = in_le32(&chip->awacs->control); 713 714 /*printk("pmac: control interrupt.. 0x%x\n", ctrl);*/ 715 if (ctrl & MASK_PORTCHG) { 716 /* do something when headphone is plugged/unplugged? */ 717 if (chip->update_automute) 718 chip->update_automute(chip, 1); 719 } 720 if (ctrl & MASK_CNTLERR) { 721 int err = (in_le32(&chip->awacs->codec_stat) & MASK_ERRCODE) >> 16; 722 if (err && chip->model <= PMAC_SCREAMER) 723 snd_printk(KERN_DEBUG "error %x\n", err); 724 } 725 /* Writing 1s to the CNTLERR and PORTCHG bits clears them... */ 726 out_le32(&chip->awacs->control, ctrl); 727 return IRQ_HANDLED; 728 } 729 730 731 /* 732 * a wrapper to feature call for compatibility 733 */ 734 static void snd_pmac_sound_feature(struct snd_pmac *chip, int enable) 735 { 736 if (ppc_md.feature_call) 737 ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable); 738 } 739 740 /* 741 * release resources 742 */ 743 744 static int snd_pmac_free(struct snd_pmac *chip) 745 { 746 /* stop sounds */ 747 if (chip->initialized) { 748 snd_pmac_dbdma_reset(chip); 749 /* disable interrupts from awacs interface */ 750 out_le32(&chip->awacs->control, in_le32(&chip->awacs->control) & 0xfff); 751 } 752 753 if (chip->node) 754 snd_pmac_sound_feature(chip, 0); 755 756 /* clean up mixer if any */ 757 if (chip->mixer_free) 758 chip->mixer_free(chip); 759 760 snd_pmac_detach_beep(chip); 761 762 /* release resources */ 763 if (chip->irq >= 0) 764 free_irq(chip->irq, (void*)chip); 765 if (chip->tx_irq >= 0) 766 free_irq(chip->tx_irq, (void*)chip); 767 if (chip->rx_irq >= 0) 768 free_irq(chip->rx_irq, (void*)chip); 769 snd_pmac_dbdma_free(chip, &chip->playback.cmd); 770 snd_pmac_dbdma_free(chip, &chip->capture.cmd); 771 snd_pmac_dbdma_free(chip, &chip->extra_dma); 772 if (chip->macio_base) 773 iounmap(chip->macio_base); 774 if (chip->latch_base) 775 iounmap(chip->latch_base); 776 if (chip->awacs) 777 iounmap(chip->awacs); 778 if (chip->playback.dma) 779 iounmap(chip->playback.dma); 780 if (chip->capture.dma) 781 iounmap(chip->capture.dma); 782 783 if (chip->node) { 784 int i; 785 for (i = 0; i < 3; i++) { 786 if (chip->requested & (1 << i)) 787 release_mem_region(chip->rsrc[i].start, 788 chip->rsrc[i].end - 789 chip->rsrc[i].start + 1); 790 } 791 } 792 793 if (chip->pdev) 794 pci_dev_put(chip->pdev); 795 of_node_put(chip->node); 796 kfree(chip); 797 return 0; 798 } 799 800 801 /* 802 * free the device 803 */ 804 static int snd_pmac_dev_free(struct snd_device *device) 805 { 806 struct snd_pmac *chip = device->device_data; 807 return snd_pmac_free(chip); 808 } 809 810 811 /* 812 * check the machine support byteswap (little-endian) 813 */ 814 815 static void __init detect_byte_swap(struct snd_pmac *chip) 816 { 817 struct device_node *mio; 818 819 /* if seems that Keylargo can't byte-swap */ 820 for (mio = chip->node->parent; mio; mio = mio->parent) { 821 if (strcmp(mio->name, "mac-io") == 0) { 822 if (of_device_is_compatible(mio, "Keylargo")) 823 chip->can_byte_swap = 0; 824 break; 825 } 826 } 827 828 /* it seems the Pismo & iBook can't byte-swap in hardware. */ 829 if (machine_is_compatible("PowerBook3,1") || 830 machine_is_compatible("PowerBook2,1")) 831 chip->can_byte_swap = 0 ; 832 833 if (machine_is_compatible("PowerBook2,1")) 834 chip->can_duplex = 0; 835 } 836 837 838 /* 839 * detect a sound chip 840 */ 841 static int __init snd_pmac_detect(struct snd_pmac *chip) 842 { 843 struct device_node *sound; 844 struct device_node *dn; 845 const unsigned int *prop; 846 unsigned int l; 847 struct macio_chip* macio; 848 849 if (!machine_is(powermac)) 850 return -ENODEV; 851 852 chip->subframe = 0; 853 chip->revision = 0; 854 chip->freqs_ok = 0xff; /* all ok */ 855 chip->model = PMAC_AWACS; 856 chip->can_byte_swap = 1; 857 chip->can_duplex = 1; 858 chip->can_capture = 1; 859 chip->num_freqs = ARRAY_SIZE(awacs_freqs); 860 chip->freq_table = awacs_freqs; 861 chip->pdev = NULL; 862 863 chip->control_mask = MASK_IEPC | MASK_IEE | 0x11; /* default */ 864 865 /* check machine type */ 866 if (machine_is_compatible("AAPL,3400/2400") 867 || machine_is_compatible("AAPL,3500")) 868 chip->is_pbook_3400 = 1; 869 else if (machine_is_compatible("PowerBook1,1") 870 || machine_is_compatible("AAPL,PowerBook1998")) 871 chip->is_pbook_G3 = 1; 872 chip->node = of_find_node_by_name(NULL, "awacs"); 873 sound = of_node_get(chip->node); 874 875 /* 876 * powermac G3 models have a node called "davbus" 877 * with a child called "sound". 878 */ 879 if (!chip->node) 880 chip->node = of_find_node_by_name(NULL, "davbus"); 881 /* 882 * if we didn't find a davbus device, try 'i2s-a' since 883 * this seems to be what iBooks have 884 */ 885 if (! chip->node) { 886 chip->node = of_find_node_by_name(NULL, "i2s-a"); 887 if (chip->node && chip->node->parent && 888 chip->node->parent->parent) { 889 if (of_device_is_compatible(chip->node->parent->parent, 890 "K2-Keylargo")) 891 chip->is_k2 = 1; 892 } 893 } 894 if (! chip->node) 895 return -ENODEV; 896 897 if (!sound) { 898 sound = of_find_node_by_name(NULL, "sound"); 899 while (sound && sound->parent != chip->node) 900 sound = of_find_node_by_name(sound, "sound"); 901 } 902 if (! sound) { 903 of_node_put(chip->node); 904 chip->node = NULL; 905 return -ENODEV; 906 } 907 prop = of_get_property(sound, "sub-frame", NULL); 908 if (prop && *prop < 16) 909 chip->subframe = *prop; 910 prop = of_get_property(sound, "layout-id", NULL); 911 if (prop) { 912 /* partly deprecate snd-powermac, for those machines 913 * that have a layout-id property for now */ 914 printk(KERN_INFO "snd-powermac no longer handles any " 915 "machines with a layout-id property " 916 "in the device-tree, use snd-aoa.\n"); 917 of_node_put(sound); 918 of_node_put(chip->node); 919 chip->node = NULL; 920 return -ENODEV; 921 } 922 /* This should be verified on older screamers */ 923 if (of_device_is_compatible(sound, "screamer")) { 924 chip->model = PMAC_SCREAMER; 925 // chip->can_byte_swap = 0; /* FIXME: check this */ 926 } 927 if (of_device_is_compatible(sound, "burgundy")) { 928 chip->model = PMAC_BURGUNDY; 929 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ 930 } 931 if (of_device_is_compatible(sound, "daca")) { 932 chip->model = PMAC_DACA; 933 chip->can_capture = 0; /* no capture */ 934 chip->can_duplex = 0; 935 // chip->can_byte_swap = 0; /* FIXME: check this */ 936 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ 937 } 938 if (of_device_is_compatible(sound, "tumbler")) { 939 chip->model = PMAC_TUMBLER; 940 chip->can_capture = 0; /* no capture */ 941 chip->can_duplex = 0; 942 // chip->can_byte_swap = 0; /* FIXME: check this */ 943 chip->num_freqs = ARRAY_SIZE(tumbler_freqs); 944 chip->freq_table = tumbler_freqs; 945 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ 946 } 947 if (of_device_is_compatible(sound, "snapper")) { 948 chip->model = PMAC_SNAPPER; 949 // chip->can_byte_swap = 0; /* FIXME: check this */ 950 chip->num_freqs = ARRAY_SIZE(tumbler_freqs); 951 chip->freq_table = tumbler_freqs; 952 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */ 953 } 954 prop = of_get_property(sound, "device-id", NULL); 955 if (prop) 956 chip->device_id = *prop; 957 dn = of_find_node_by_name(NULL, "perch"); 958 chip->has_iic = (dn != NULL); 959 of_node_put(dn); 960 961 /* We need the PCI device for DMA allocations, let's use a crude method 962 * for now ... 963 */ 964 macio = macio_find(chip->node, macio_unknown); 965 if (macio == NULL) 966 printk(KERN_WARNING "snd-powermac: can't locate macio !\n"); 967 else { 968 struct pci_dev *pdev = NULL; 969 970 for_each_pci_dev(pdev) { 971 struct device_node *np = pci_device_to_OF_node(pdev); 972 if (np && np == macio->of_node) { 973 chip->pdev = pdev; 974 break; 975 } 976 } 977 } 978 if (chip->pdev == NULL) 979 printk(KERN_WARNING "snd-powermac: can't locate macio PCI" 980 " device !\n"); 981 982 detect_byte_swap(chip); 983 984 /* look for a property saying what sample rates 985 are available */ 986 prop = of_get_property(sound, "sample-rates", &l); 987 if (! prop) 988 prop = of_get_property(sound, "output-frame-rates", &l); 989 if (prop) { 990 int i; 991 chip->freqs_ok = 0; 992 for (l /= sizeof(int); l > 0; --l) { 993 unsigned int r = *prop++; 994 /* Apple 'Fixed' format */ 995 if (r >= 0x10000) 996 r >>= 16; 997 for (i = 0; i < chip->num_freqs; ++i) { 998 if (r == chip->freq_table[i]) { 999 chip->freqs_ok |= (1 << i); 1000 break; 1001 } 1002 } 1003 } 1004 } else { 1005 /* assume only 44.1khz */ 1006 chip->freqs_ok = 1; 1007 } 1008 1009 of_node_put(sound); 1010 return 0; 1011 } 1012 1013 #ifdef PMAC_SUPPORT_AUTOMUTE 1014 /* 1015 * auto-mute 1016 */ 1017 static int pmac_auto_mute_get(struct snd_kcontrol *kcontrol, 1018 struct snd_ctl_elem_value *ucontrol) 1019 { 1020 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 1021 ucontrol->value.integer.value[0] = chip->auto_mute; 1022 return 0; 1023 } 1024 1025 static int pmac_auto_mute_put(struct snd_kcontrol *kcontrol, 1026 struct snd_ctl_elem_value *ucontrol) 1027 { 1028 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 1029 if (ucontrol->value.integer.value[0] != chip->auto_mute) { 1030 chip->auto_mute = !!ucontrol->value.integer.value[0]; 1031 if (chip->update_automute) 1032 chip->update_automute(chip, 1); 1033 return 1; 1034 } 1035 return 0; 1036 } 1037 1038 static int pmac_hp_detect_get(struct snd_kcontrol *kcontrol, 1039 struct snd_ctl_elem_value *ucontrol) 1040 { 1041 struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); 1042 if (chip->detect_headphone) 1043 ucontrol->value.integer.value[0] = chip->detect_headphone(chip); 1044 else 1045 ucontrol->value.integer.value[0] = 0; 1046 return 0; 1047 } 1048 1049 static struct snd_kcontrol_new auto_mute_controls[] __initdata = { 1050 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1051 .name = "Auto Mute Switch", 1052 .info = snd_pmac_boolean_mono_info, 1053 .get = pmac_auto_mute_get, 1054 .put = pmac_auto_mute_put, 1055 }, 1056 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1057 .name = "Headphone Detection", 1058 .access = SNDRV_CTL_ELEM_ACCESS_READ, 1059 .info = snd_pmac_boolean_mono_info, 1060 .get = pmac_hp_detect_get, 1061 }, 1062 }; 1063 1064 int __init snd_pmac_add_automute(struct snd_pmac *chip) 1065 { 1066 int err; 1067 chip->auto_mute = 1; 1068 err = snd_ctl_add(chip->card, snd_ctl_new1(&auto_mute_controls[0], chip)); 1069 if (err < 0) { 1070 printk(KERN_ERR "snd-powermac: Failed to add automute control\n"); 1071 return err; 1072 } 1073 chip->hp_detect_ctl = snd_ctl_new1(&auto_mute_controls[1], chip); 1074 return snd_ctl_add(chip->card, chip->hp_detect_ctl); 1075 } 1076 #endif /* PMAC_SUPPORT_AUTOMUTE */ 1077 1078 /* 1079 * create and detect a pmac chip record 1080 */ 1081 int __init snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return) 1082 { 1083 struct snd_pmac *chip; 1084 struct device_node *np; 1085 int i, err; 1086 unsigned int irq; 1087 unsigned long ctrl_addr, txdma_addr, rxdma_addr; 1088 static struct snd_device_ops ops = { 1089 .dev_free = snd_pmac_dev_free, 1090 }; 1091 1092 *chip_return = NULL; 1093 1094 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 1095 if (chip == NULL) 1096 return -ENOMEM; 1097 chip->card = card; 1098 1099 spin_lock_init(&chip->reg_lock); 1100 chip->irq = chip->tx_irq = chip->rx_irq = -1; 1101 1102 chip->playback.stream = SNDRV_PCM_STREAM_PLAYBACK; 1103 chip->capture.stream = SNDRV_PCM_STREAM_CAPTURE; 1104 1105 if ((err = snd_pmac_detect(chip)) < 0) 1106 goto __error; 1107 1108 if (snd_pmac_dbdma_alloc(chip, &chip->playback.cmd, PMAC_MAX_FRAGS + 1) < 0 || 1109 snd_pmac_dbdma_alloc(chip, &chip->capture.cmd, PMAC_MAX_FRAGS + 1) < 0 || 1110 snd_pmac_dbdma_alloc(chip, &chip->extra_dma, 2) < 0) { 1111 err = -ENOMEM; 1112 goto __error; 1113 } 1114 1115 np = chip->node; 1116 chip->requested = 0; 1117 if (chip->is_k2) { 1118 static char *rnames[] = { 1119 "Sound Control", "Sound DMA" }; 1120 for (i = 0; i < 2; i ++) { 1121 if (of_address_to_resource(np->parent, i, 1122 &chip->rsrc[i])) { 1123 printk(KERN_ERR "snd: can't translate rsrc " 1124 " %d (%s)\n", i, rnames[i]); 1125 err = -ENODEV; 1126 goto __error; 1127 } 1128 if (request_mem_region(chip->rsrc[i].start, 1129 chip->rsrc[i].end - 1130 chip->rsrc[i].start + 1, 1131 rnames[i]) == NULL) { 1132 printk(KERN_ERR "snd: can't request rsrc " 1133 " %d (%s: 0x%016llx:%016llx)\n", 1134 i, rnames[i], 1135 (unsigned long long)chip->rsrc[i].start, 1136 (unsigned long long)chip->rsrc[i].end); 1137 err = -ENODEV; 1138 goto __error; 1139 } 1140 chip->requested |= (1 << i); 1141 } 1142 ctrl_addr = chip->rsrc[0].start; 1143 txdma_addr = chip->rsrc[1].start; 1144 rxdma_addr = txdma_addr + 0x100; 1145 } else { 1146 static char *rnames[] = { 1147 "Sound Control", "Sound Tx DMA", "Sound Rx DMA" }; 1148 for (i = 0; i < 3; i ++) { 1149 if (of_address_to_resource(np, i, 1150 &chip->rsrc[i])) { 1151 printk(KERN_ERR "snd: can't translate rsrc " 1152 " %d (%s)\n", i, rnames[i]); 1153 err = -ENODEV; 1154 goto __error; 1155 } 1156 if (request_mem_region(chip->rsrc[i].start, 1157 chip->rsrc[i].end - 1158 chip->rsrc[i].start + 1, 1159 rnames[i]) == NULL) { 1160 printk(KERN_ERR "snd: can't request rsrc " 1161 " %d (%s: 0x%016llx:%016llx)\n", 1162 i, rnames[i], 1163 (unsigned long long)chip->rsrc[i].start, 1164 (unsigned long long)chip->rsrc[i].end); 1165 err = -ENODEV; 1166 goto __error; 1167 } 1168 chip->requested |= (1 << i); 1169 } 1170 ctrl_addr = chip->rsrc[0].start; 1171 txdma_addr = chip->rsrc[1].start; 1172 rxdma_addr = chip->rsrc[2].start; 1173 } 1174 1175 chip->awacs = ioremap(ctrl_addr, 0x1000); 1176 chip->playback.dma = ioremap(txdma_addr, 0x100); 1177 chip->capture.dma = ioremap(rxdma_addr, 0x100); 1178 if (chip->model <= PMAC_BURGUNDY) { 1179 irq = irq_of_parse_and_map(np, 0); 1180 if (request_irq(irq, snd_pmac_ctrl_intr, 0, 1181 "PMac", (void*)chip)) { 1182 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", 1183 irq); 1184 err = -EBUSY; 1185 goto __error; 1186 } 1187 chip->irq = irq; 1188 } 1189 irq = irq_of_parse_and_map(np, 1); 1190 if (request_irq(irq, snd_pmac_tx_intr, 0, "PMac Output", (void*)chip)){ 1191 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq); 1192 err = -EBUSY; 1193 goto __error; 1194 } 1195 chip->tx_irq = irq; 1196 irq = irq_of_parse_and_map(np, 2); 1197 if (request_irq(irq, snd_pmac_rx_intr, 0, "PMac Input", (void*)chip)) { 1198 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq); 1199 err = -EBUSY; 1200 goto __error; 1201 } 1202 chip->rx_irq = irq; 1203 1204 snd_pmac_sound_feature(chip, 1); 1205 1206 /* reset */ 1207 if (chip->model == PMAC_AWACS) 1208 out_le32(&chip->awacs->control, 0x11); 1209 1210 /* Powerbooks have odd ways of enabling inputs such as 1211 an expansion-bay CD or sound from an internal modem 1212 or a PC-card modem. */ 1213 if (chip->is_pbook_3400) { 1214 /* Enable CD and PC-card sound inputs. */ 1215 /* This is done by reading from address 1216 * f301a000, + 0x10 to enable the expansion-bay 1217 * CD sound input, + 0x80 to enable the PC-card 1218 * sound input. The 0x100 enables the SCSI bus 1219 * terminator power. 1220 */ 1221 chip->latch_base = ioremap (0xf301a000, 0x1000); 1222 in_8(chip->latch_base + 0x190); 1223 } else if (chip->is_pbook_G3) { 1224 struct device_node* mio; 1225 for (mio = chip->node->parent; mio; mio = mio->parent) { 1226 if (strcmp(mio->name, "mac-io") == 0) { 1227 struct resource r; 1228 if (of_address_to_resource(mio, 0, &r) == 0) 1229 chip->macio_base = 1230 ioremap(r.start, 0x40); 1231 break; 1232 } 1233 } 1234 /* Enable CD sound input. */ 1235 /* The relevant bits for writing to this byte are 0x8f. 1236 * I haven't found out what the 0x80 bit does. 1237 * For the 0xf bits, writing 3 or 7 enables the CD 1238 * input, any other value disables it. Values 1239 * 1, 3, 5, 7 enable the microphone. Values 0, 2, 1240 * 4, 6, 8 - f enable the input from the modem. 1241 */ 1242 if (chip->macio_base) 1243 out_8(chip->macio_base + 0x37, 3); 1244 } 1245 1246 /* Reset dbdma channels */ 1247 snd_pmac_dbdma_reset(chip); 1248 1249 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) 1250 goto __error; 1251 1252 *chip_return = chip; 1253 return 0; 1254 1255 __error: 1256 snd_pmac_free(chip); 1257 return err; 1258 } 1259 1260 1261 /* 1262 * sleep notify for powerbook 1263 */ 1264 1265 #ifdef CONFIG_PM 1266 1267 /* 1268 * Save state when going to sleep, restore it afterwards. 1269 */ 1270 1271 void snd_pmac_suspend(struct snd_pmac *chip) 1272 { 1273 unsigned long flags; 1274 1275 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot); 1276 if (chip->suspend) 1277 chip->suspend(chip); 1278 snd_pcm_suspend_all(chip->pcm); 1279 spin_lock_irqsave(&chip->reg_lock, flags); 1280 snd_pmac_beep_stop(chip); 1281 spin_unlock_irqrestore(&chip->reg_lock, flags); 1282 if (chip->irq >= 0) 1283 disable_irq(chip->irq); 1284 if (chip->tx_irq >= 0) 1285 disable_irq(chip->tx_irq); 1286 if (chip->rx_irq >= 0) 1287 disable_irq(chip->rx_irq); 1288 snd_pmac_sound_feature(chip, 0); 1289 } 1290 1291 void snd_pmac_resume(struct snd_pmac *chip) 1292 { 1293 snd_pmac_sound_feature(chip, 1); 1294 if (chip->resume) 1295 chip->resume(chip); 1296 /* enable CD sound input */ 1297 if (chip->macio_base && chip->is_pbook_G3) 1298 out_8(chip->macio_base + 0x37, 3); 1299 else if (chip->is_pbook_3400) 1300 in_8(chip->latch_base + 0x190); 1301 1302 snd_pmac_pcm_set_format(chip); 1303 1304 if (chip->irq >= 0) 1305 enable_irq(chip->irq); 1306 if (chip->tx_irq >= 0) 1307 enable_irq(chip->tx_irq); 1308 if (chip->rx_irq >= 0) 1309 enable_irq(chip->rx_irq); 1310 1311 snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0); 1312 } 1313 1314 #endif /* CONFIG_PM */ 1315 1316