1 /* $NetBSD: cs4281.c,v 1.44 2010/02/24 22:37:59 dyoung Exp $ */ 2 3 /* 4 * Copyright (c) 2000 Tatoku Ogaito. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Tatoku Ogaito 17 * for the NetBSD Project. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Cirrus Logic CS4281 driver. 35 * Data sheets can be found 36 * http://www.cirrus.com/ftp/pub/4281.pdf 37 * ftp://ftp.alsa-project.org/pub/manuals/cirrus/cs4281tm.pdf 38 * 39 * TODO: 40 * 1: midi and FM support 41 * 2: ... 42 * 43 */ 44 45 #include <sys/cdefs.h> 46 __KERNEL_RCSID(0, "$NetBSD: cs4281.c,v 1.44 2010/02/24 22:37:59 dyoung Exp $"); 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/kernel.h> 51 #include <sys/malloc.h> 52 #include <sys/fcntl.h> 53 #include <sys/device.h> 54 #include <sys/systm.h> 55 56 #include <dev/pci/pcidevs.h> 57 #include <dev/pci/pcivar.h> 58 #include <dev/pci/cs4281reg.h> 59 #include <dev/pci/cs428xreg.h> 60 61 #include <sys/audioio.h> 62 #include <dev/audio_if.h> 63 #include <dev/midi_if.h> 64 #include <dev/mulaw.h> 65 #include <dev/auconv.h> 66 67 #include <dev/ic/ac97reg.h> 68 #include <dev/ic/ac97var.h> 69 70 #include <dev/pci/cs428x.h> 71 72 #include <sys/bus.h> 73 74 #if defined(ENABLE_SECONDARY_CODEC) 75 #define MAX_CHANNELS (4) 76 #define MAX_FIFO_SIZE 32 /* 128/4channels */ 77 #else 78 #define MAX_CHANNELS (2) 79 #define MAX_FIFO_SIZE 64 /* 128/2channels */ 80 #endif 81 82 /* IF functions for audio driver */ 83 static int cs4281_match(device_t, cfdata_t, void *); 84 static void cs4281_attach(device_t, device_t, void *); 85 static int cs4281_intr(void *); 86 static int cs4281_query_encoding(void *, struct audio_encoding *); 87 static int cs4281_set_params(void *, int, int, audio_params_t *, 88 audio_params_t *, stream_filter_list_t *, 89 stream_filter_list_t *); 90 static int cs4281_halt_output(void *); 91 static int cs4281_halt_input(void *); 92 static int cs4281_getdev(void *, struct audio_device *); 93 static int cs4281_trigger_output(void *, void *, void *, int, 94 void (*)(void *), void *, 95 const audio_params_t *); 96 static int cs4281_trigger_input(void *, void *, void *, int, 97 void (*)(void *), void *, 98 const audio_params_t *); 99 100 static int cs4281_reset_codec(void *); 101 102 /* Internal functions */ 103 static uint8_t cs4281_sr2regval(int); 104 static void cs4281_set_dac_rate(struct cs428x_softc *, int); 105 static void cs4281_set_adc_rate(struct cs428x_softc *, int); 106 static int cs4281_init(struct cs428x_softc *, int); 107 108 /* Power Management */ 109 static bool cs4281_suspend(device_t, const pmf_qual_t *); 110 static bool cs4281_resume(device_t, const pmf_qual_t *); 111 112 static const struct audio_hw_if cs4281_hw_if = { 113 NULL, /* open */ 114 NULL, /* close */ 115 NULL, 116 cs4281_query_encoding, 117 cs4281_set_params, 118 cs428x_round_blocksize, 119 NULL, 120 NULL, 121 NULL, 122 NULL, 123 NULL, 124 cs4281_halt_output, 125 cs4281_halt_input, 126 NULL, 127 cs4281_getdev, 128 NULL, 129 cs428x_mixer_set_port, 130 cs428x_mixer_get_port, 131 cs428x_query_devinfo, 132 cs428x_malloc, 133 cs428x_free, 134 cs428x_round_buffersize, 135 cs428x_mappage, 136 cs428x_get_props, 137 cs4281_trigger_output, 138 cs4281_trigger_input, 139 NULL, 140 NULL, 141 }; 142 143 #if NMIDI > 0 && 0 144 /* Midi Interface */ 145 static void cs4281_midi_close(void*); 146 static void cs4281_midi_getinfo(void *, struct midi_info *); 147 static int cs4281_midi_open(void *, int, void (*)(void *, int), 148 void (*)(void *), void *); 149 static int cs4281_midi_output(void *, int); 150 151 static const struct midi_hw_if cs4281_midi_hw_if = { 152 cs4281_midi_open, 153 cs4281_midi_close, 154 cs4281_midi_output, 155 cs4281_midi_getinfo, 156 0, 157 }; 158 #endif 159 160 CFATTACH_DECL(clct, sizeof(struct cs428x_softc), 161 cs4281_match, cs4281_attach, NULL, NULL); 162 163 static struct audio_device cs4281_device = { 164 "CS4281", 165 "", 166 "cs4281" 167 }; 168 169 170 static int 171 cs4281_match(device_t parent, cfdata_t match, void *aux) 172 { 173 struct pci_attach_args *pa; 174 175 pa = (struct pci_attach_args *)aux; 176 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_CIRRUS) 177 return 0; 178 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CIRRUS_CS4281) 179 return 1; 180 return 0; 181 } 182 183 static void 184 cs4281_attach(device_t parent, device_t self, void *aux) 185 { 186 struct cs428x_softc *sc; 187 struct pci_attach_args *pa; 188 pci_chipset_tag_t pc; 189 char const *intrstr; 190 pcireg_t reg; 191 char devinfo[256]; 192 int error; 193 194 sc = device_private(self); 195 pa = (struct pci_attach_args *)aux; 196 pc = pa->pa_pc; 197 aprint_naive(": Audio controller\n"); 198 199 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 200 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, 201 PCI_REVISION(pa->pa_class)); 202 203 sc->sc_pc = pa->pa_pc; 204 sc->sc_pt = pa->pa_tag; 205 206 /* Map I/O register */ 207 if (pci_mapreg_map(pa, PCI_BA0, 208 PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0, 209 &sc->ba0t, &sc->ba0h, NULL, NULL)) { 210 aprint_error_dev(&sc->sc_dev, "can't map BA0 space\n"); 211 return; 212 } 213 if (pci_mapreg_map(pa, PCI_BA1, 214 PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0, 215 &sc->ba1t, &sc->ba1h, NULL, NULL)) { 216 aprint_error_dev(&sc->sc_dev, "can't map BA1 space\n"); 217 return; 218 } 219 220 sc->sc_dmatag = pa->pa_dmat; 221 222 /* power up chip */ 223 if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, 224 pci_activate_null)) && error != EOPNOTSUPP) { 225 aprint_error_dev(&sc->sc_dev, "cannot activate %d\n", error); 226 return; 227 } 228 229 /* Enable the device (set bus master flag) */ 230 reg = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 231 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 232 reg | PCI_COMMAND_MASTER_ENABLE); 233 234 #if 0 235 /* LATENCY_TIMER setting */ 236 temp1 = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG); 237 if (PCI_LATTIMER(temp1) < 32) { 238 temp1 &= 0xffff00ff; 239 temp1 |= 0x00002000; 240 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG, temp1); 241 } 242 #endif 243 244 /* Map and establish the interrupt. */ 245 if (pci_intr_map(pa, &sc->intrh)) { 246 aprint_error_dev(&sc->sc_dev, "couldn't map interrupt\n"); 247 return; 248 } 249 intrstr = pci_intr_string(pc, sc->intrh); 250 251 sc->sc_ih = pci_intr_establish(sc->sc_pc, sc->intrh, IPL_AUDIO, 252 cs4281_intr, sc); 253 if (sc->sc_ih == NULL) { 254 aprint_error_dev(&sc->sc_dev, "couldn't establish interrupt"); 255 if (intrstr != NULL) 256 aprint_error(" at %s", intrstr); 257 aprint_error("\n"); 258 return; 259 } 260 aprint_normal_dev(&sc->sc_dev, "interrupting at %s\n", intrstr); 261 262 /* 263 * Sound System start-up 264 */ 265 if (cs4281_init(sc, 1) != 0) 266 return; 267 268 sc->type = TYPE_CS4281; 269 sc->halt_input = cs4281_halt_input; 270 sc->halt_output = cs4281_halt_output; 271 272 sc->dma_size = CS4281_BUFFER_SIZE / MAX_CHANNELS; 273 sc->dma_align = 0x10; 274 sc->hw_blocksize = sc->dma_size / 2; 275 276 /* AC 97 attachment */ 277 sc->host_if.arg = sc; 278 sc->host_if.attach = cs428x_attach_codec; 279 sc->host_if.read = cs428x_read_codec; 280 sc->host_if.write = cs428x_write_codec; 281 sc->host_if.reset = cs4281_reset_codec; 282 if (ac97_attach(&sc->host_if, self) != 0) { 283 aprint_error_dev(&sc->sc_dev, "ac97_attach failed\n"); 284 return; 285 } 286 audio_attach_mi(&cs4281_hw_if, sc, &sc->sc_dev); 287 288 #if NMIDI > 0 && 0 289 midi_attach_mi(&cs4281_midi_hw_if, sc, &sc->sc_dev); 290 #endif 291 292 if (!pmf_device_register(self, cs4281_suspend, cs4281_resume)) 293 aprint_error_dev(self, "couldn't establish power handler\n"); 294 } 295 296 static int 297 cs4281_intr(void *p) 298 { 299 struct cs428x_softc *sc; 300 uint32_t intr, hdsr0, hdsr1; 301 char *empty_dma; 302 int handled; 303 304 sc = p; 305 handled = 0; 306 hdsr0 = 0; 307 hdsr1 = 0; 308 309 /* grab interrupt register */ 310 intr = BA0READ4(sc, CS4281_HISR); 311 312 DPRINTF(("cs4281_intr:")); 313 /* not for me */ 314 if ((intr & HISR_INTENA) == 0) { 315 /* clear the interrupt register */ 316 BA0WRITE4(sc, CS4281_HICR, HICR_CHGM | HICR_IEV); 317 return 0; 318 } 319 320 if (intr & HISR_DMA0) 321 hdsr0 = BA0READ4(sc, CS4281_HDSR0); /* clear intr condition */ 322 if (intr & HISR_DMA1) 323 hdsr1 = BA0READ4(sc, CS4281_HDSR1); /* clear intr condition */ 324 /* clear the interrupt register */ 325 BA0WRITE4(sc, CS4281_HICR, HICR_CHGM | HICR_IEV); 326 327 DPRINTF(("intr = 0x%08x, hdsr0 = 0x%08x hdsr1 = 0x%08x\n", 328 intr, hdsr0, hdsr1)); 329 330 /* Playback Interrupt */ 331 if (intr & HISR_DMA0) { 332 handled = 1; 333 if (sc->sc_prun) { 334 DPRINTF((" PB DMA 0x%x(%d)", 335 (int)BA0READ4(sc, CS4281_DCA0), 336 (int)BA0READ4(sc, CS4281_DCC0))); 337 if ((sc->sc_pi%sc->sc_pcount) == 0) 338 sc->sc_pintr(sc->sc_parg); 339 /* copy buffer */ 340 ++sc->sc_pi; 341 empty_dma = sc->sc_pdma->addr; 342 if (sc->sc_pi&1) 343 empty_dma += sc->hw_blocksize; 344 memcpy(empty_dma, sc->sc_pn, sc->hw_blocksize); 345 sc->sc_pn += sc->hw_blocksize; 346 if (sc->sc_pn >= sc->sc_pe) 347 sc->sc_pn = sc->sc_ps; 348 } else { 349 aprint_error_dev(&sc->sc_dev, "unexpected play intr\n"); 350 } 351 } 352 if (intr & HISR_DMA1) { 353 handled = 1; 354 if (sc->sc_rrun) { 355 /* copy from DMA */ 356 DPRINTF((" CP DMA 0x%x(%d)", (int)BA0READ4(sc, CS4281_DCA1), 357 (int)BA0READ4(sc, CS4281_DCC1))); 358 ++sc->sc_ri; 359 empty_dma = sc->sc_rdma->addr; 360 if ((sc->sc_ri & 1) == 0) 361 empty_dma += sc->hw_blocksize; 362 memcpy(sc->sc_rn, empty_dma, sc->hw_blocksize); 363 sc->sc_rn += sc->hw_blocksize; 364 if (sc->sc_rn >= sc->sc_re) 365 sc->sc_rn = sc->sc_rs; 366 if ((sc->sc_ri % sc->sc_rcount) == 0) 367 sc->sc_rintr(sc->sc_rarg); 368 } else { 369 aprint_error_dev(&sc->sc_dev, 370 "unexpected record intr\n"); 371 } 372 } 373 DPRINTF(("\n")); 374 375 return handled; 376 } 377 378 static int 379 cs4281_query_encoding(void *addr, struct audio_encoding *fp) 380 { 381 382 switch (fp->index) { 383 case 0: 384 strcpy(fp->name, AudioEulinear); 385 fp->encoding = AUDIO_ENCODING_ULINEAR; 386 fp->precision = 8; 387 fp->flags = 0; 388 break; 389 case 1: 390 strcpy(fp->name, AudioEmulaw); 391 fp->encoding = AUDIO_ENCODING_ULAW; 392 fp->precision = 8; 393 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 394 break; 395 case 2: 396 strcpy(fp->name, AudioEalaw); 397 fp->encoding = AUDIO_ENCODING_ALAW; 398 fp->precision = 8; 399 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 400 break; 401 case 3: 402 strcpy(fp->name, AudioEslinear); 403 fp->encoding = AUDIO_ENCODING_SLINEAR; 404 fp->precision = 8; 405 fp->flags = 0; 406 break; 407 case 4: 408 strcpy(fp->name, AudioEslinear_le); 409 fp->encoding = AUDIO_ENCODING_SLINEAR_LE; 410 fp->precision = 16; 411 fp->flags = 0; 412 break; 413 case 5: 414 strcpy(fp->name, AudioEulinear_le); 415 fp->encoding = AUDIO_ENCODING_ULINEAR_LE; 416 fp->precision = 16; 417 fp->flags = 0; 418 break; 419 case 6: 420 strcpy(fp->name, AudioEslinear_be); 421 fp->encoding = AUDIO_ENCODING_SLINEAR_BE; 422 fp->precision = 16; 423 fp->flags = 0; 424 break; 425 case 7: 426 strcpy(fp->name, AudioEulinear_be); 427 fp->encoding = AUDIO_ENCODING_ULINEAR_BE; 428 fp->precision = 16; 429 fp->flags = 0; 430 break; 431 default: 432 return EINVAL; 433 } 434 return 0; 435 } 436 437 static int 438 cs4281_set_params(void *addr, int setmode, int usemode, 439 audio_params_t *play, audio_params_t *rec, stream_filter_list_t *pfil, 440 stream_filter_list_t *rfil) 441 { 442 audio_params_t hw; 443 struct cs428x_softc *sc; 444 audio_params_t *p; 445 stream_filter_list_t *fil; 446 int mode; 447 448 sc = addr; 449 for (mode = AUMODE_RECORD; mode != -1; 450 mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) { 451 if ((setmode & mode) == 0) 452 continue; 453 454 p = mode == AUMODE_PLAY ? play : rec; 455 456 if (p == play) { 457 DPRINTFN(5, 458 ("play: sample=%u precision=%u channels=%u\n", 459 p->sample_rate, p->precision, p->channels)); 460 if (p->sample_rate < 6023 || p->sample_rate > 48000 || 461 (p->precision != 8 && p->precision != 16) || 462 (p->channels != 1 && p->channels != 2)) { 463 return EINVAL; 464 } 465 } else { 466 DPRINTFN(5, 467 ("rec: sample=%u precision=%u channels=%u\n", 468 p->sample_rate, p->precision, p->channels)); 469 if (p->sample_rate < 6023 || p->sample_rate > 48000 || 470 (p->precision != 8 && p->precision != 16) || 471 (p->channels != 1 && p->channels != 2)) { 472 return EINVAL; 473 } 474 } 475 hw = *p; 476 fil = mode == AUMODE_PLAY ? pfil : rfil; 477 478 switch (p->encoding) { 479 case AUDIO_ENCODING_SLINEAR_BE: 480 break; 481 case AUDIO_ENCODING_SLINEAR_LE: 482 break; 483 case AUDIO_ENCODING_ULINEAR_BE: 484 break; 485 case AUDIO_ENCODING_ULINEAR_LE: 486 break; 487 case AUDIO_ENCODING_ULAW: 488 hw.encoding = AUDIO_ENCODING_SLINEAR_LE; 489 fil->append(fil, mode == AUMODE_PLAY ? mulaw_to_linear8 490 : linear8_to_mulaw, &hw); 491 break; 492 case AUDIO_ENCODING_ALAW: 493 hw.encoding = AUDIO_ENCODING_SLINEAR_LE; 494 fil->append(fil, mode == AUMODE_PLAY ? alaw_to_linear8 495 : linear8_to_alaw, &hw); 496 break; 497 default: 498 return EINVAL; 499 } 500 } 501 502 /* set sample rate */ 503 cs4281_set_dac_rate(sc, play->sample_rate); 504 cs4281_set_adc_rate(sc, rec->sample_rate); 505 return 0; 506 } 507 508 static int 509 cs4281_halt_output(void *addr) 510 { 511 struct cs428x_softc *sc; 512 513 sc = addr; 514 BA0WRITE4(sc, CS4281_DCR0, BA0READ4(sc, CS4281_DCR0) | DCRn_MSK); 515 sc->sc_prun = 0; 516 return 0; 517 } 518 519 static int 520 cs4281_halt_input(void *addr) 521 { 522 struct cs428x_softc *sc; 523 524 sc = addr; 525 BA0WRITE4(sc, CS4281_DCR1, BA0READ4(sc, CS4281_DCR1) | DCRn_MSK); 526 sc->sc_rrun = 0; 527 return 0; 528 } 529 530 static int 531 cs4281_getdev(void *addr, struct audio_device *retp) 532 { 533 534 *retp = cs4281_device; 535 return 0; 536 } 537 538 static int 539 cs4281_trigger_output(void *addr, void *start, void *end, int blksize, 540 void (*intr)(void *), void *arg, 541 const audio_params_t *param) 542 { 543 struct cs428x_softc *sc; 544 uint32_t fmt; 545 struct cs428x_dma *p; 546 int dma_count; 547 548 sc = addr; 549 fmt = 0; 550 #ifdef DIAGNOSTIC 551 if (sc->sc_prun) 552 printf("cs4281_trigger_output: already running\n"); 553 #endif 554 sc->sc_prun = 1; 555 556 DPRINTF(("cs4281_trigger_output: sc=%p start=%p end=%p " 557 "blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg)); 558 sc->sc_pintr = intr; 559 sc->sc_parg = arg; 560 561 /* stop playback DMA */ 562 BA0WRITE4(sc, CS4281_DCR0, BA0READ4(sc, CS4281_DCR0) | DCRn_MSK); 563 564 DPRINTF(("param: precision=%d channels=%d encoding=%d\n", 565 param->precision, param->channels, param->encoding)); 566 for (p = sc->sc_dmas; p != NULL && BUFADDR(p) != start; p = p->next) 567 continue; 568 if (p == NULL) { 569 printf("cs4281_trigger_output: bad addr %p\n", start); 570 return EINVAL; 571 } 572 573 sc->sc_pcount = blksize / sc->hw_blocksize; 574 sc->sc_ps = (char *)start; 575 sc->sc_pe = (char *)end; 576 sc->sc_pdma = p; 577 sc->sc_pbuf = KERNADDR(p); 578 sc->sc_pi = 0; 579 sc->sc_pn = sc->sc_ps; 580 if (blksize >= sc->dma_size) { 581 sc->sc_pn = sc->sc_ps + sc->dma_size; 582 memcpy(sc->sc_pbuf, start, sc->dma_size); 583 ++sc->sc_pi; 584 } else { 585 sc->sc_pn = sc->sc_ps + sc->hw_blocksize; 586 memcpy(sc->sc_pbuf, start, sc->hw_blocksize); 587 } 588 589 dma_count = sc->dma_size; 590 if (param->precision != 8) 591 dma_count /= 2; /* 16 bit */ 592 if (param->channels > 1) 593 dma_count /= 2; /* Stereo */ 594 595 DPRINTF(("cs4281_trigger_output: DMAADDR(p)=0x%x count=%d\n", 596 (int)DMAADDR(p), dma_count)); 597 BA0WRITE4(sc, CS4281_DBA0, DMAADDR(p)); 598 BA0WRITE4(sc, CS4281_DBC0, dma_count-1); 599 600 /* set playback format */ 601 fmt = BA0READ4(sc, CS4281_DMR0) & ~DMRn_FMTMSK; 602 if (param->precision == 8) 603 fmt |= DMRn_SIZE8; 604 if (param->channels == 1) 605 fmt |= DMRn_MONO; 606 if (param->encoding == AUDIO_ENCODING_ULINEAR_BE || 607 param->encoding == AUDIO_ENCODING_SLINEAR_BE) 608 fmt |= DMRn_BEND; 609 if (param->encoding == AUDIO_ENCODING_ULINEAR_BE || 610 param->encoding == AUDIO_ENCODING_ULINEAR_LE) 611 fmt |= DMRn_USIGN; 612 BA0WRITE4(sc, CS4281_DMR0, fmt); 613 614 /* set sample rate */ 615 sc->sc_prate = param->sample_rate; 616 cs4281_set_dac_rate(sc, param->sample_rate); 617 618 /* start DMA */ 619 BA0WRITE4(sc, CS4281_DCR0, BA0READ4(sc, CS4281_DCR0) & ~DCRn_MSK); 620 /* Enable interrupts */ 621 BA0WRITE4(sc, CS4281_HICR, HICR_IEV | HICR_CHGM); 622 623 DPRINTF(("HICR =0x%08x(expected 0x00000001)\n", BA0READ4(sc, CS4281_HICR))); 624 DPRINTF(("HIMR =0x%08x(expected 0x00f0fc3f)\n", BA0READ4(sc, CS4281_HIMR))); 625 DPRINTF(("DMR0 =0x%08x(expected 0x2???0018)\n", BA0READ4(sc, CS4281_DMR0))); 626 DPRINTF(("DCR0 =0x%08x(expected 0x00030000)\n", BA0READ4(sc, CS4281_DCR0))); 627 DPRINTF(("FCR0 =0x%08x(expected 0x81000f00)\n", BA0READ4(sc, CS4281_FCR0))); 628 DPRINTF(("DACSR=0x%08x(expected 1 for 44kHz 5 for 8kHz)\n", 629 BA0READ4(sc, CS4281_DACSR))); 630 DPRINTF(("SRCSA=0x%08x(expected 0x0b0a0100)\n", BA0READ4(sc, CS4281_SRCSA))); 631 DPRINTF(("SSPM&SSPM_PSRCEN =0x%08x(expected 0x00000010)\n", 632 BA0READ4(sc, CS4281_SSPM) & SSPM_PSRCEN)); 633 634 return 0; 635 } 636 637 static int 638 cs4281_trigger_input(void *addr, void *start, void *end, int blksize, 639 void (*intr)(void *), void *arg, 640 const audio_params_t *param) 641 { 642 struct cs428x_softc *sc; 643 struct cs428x_dma *p; 644 uint32_t fmt; 645 int dma_count; 646 647 sc = addr; 648 fmt = 0; 649 #ifdef DIAGNOSTIC 650 if (sc->sc_rrun) 651 printf("cs4281_trigger_input: already running\n"); 652 #endif 653 sc->sc_rrun = 1; 654 DPRINTF(("cs4281_trigger_input: sc=%p start=%p end=%p " 655 "blksize=%d intr=%p(%p)\n", addr, start, end, blksize, intr, arg)); 656 sc->sc_rintr = intr; 657 sc->sc_rarg = arg; 658 659 /* stop recording DMA */ 660 BA0WRITE4(sc, CS4281_DCR1, BA0READ4(sc, CS4281_DCR1) | DCRn_MSK); 661 662 for (p = sc->sc_dmas; p && BUFADDR(p) != start; p = p->next) 663 continue; 664 if (!p) { 665 printf("cs4281_trigger_input: bad addr %p\n", start); 666 return EINVAL; 667 } 668 669 sc->sc_rcount = blksize / sc->hw_blocksize; 670 sc->sc_rs = (char *)start; 671 sc->sc_re = (char *)end; 672 sc->sc_rdma = p; 673 sc->sc_rbuf = KERNADDR(p); 674 sc->sc_ri = 0; 675 sc->sc_rn = sc->sc_rs; 676 677 dma_count = sc->dma_size; 678 if (param->precision != 8) 679 dma_count /= 2; 680 if (param->channels > 1) 681 dma_count /= 2; 682 683 DPRINTF(("cs4281_trigger_input: DMAADDR(p)=0x%x count=%d\n", 684 (int)DMAADDR(p), dma_count)); 685 BA0WRITE4(sc, CS4281_DBA1, DMAADDR(p)); 686 BA0WRITE4(sc, CS4281_DBC1, dma_count-1); 687 688 /* set recording format */ 689 fmt = BA0READ4(sc, CS4281_DMR1) & ~DMRn_FMTMSK; 690 if (param->precision == 8) 691 fmt |= DMRn_SIZE8; 692 if (param->channels == 1) 693 fmt |= DMRn_MONO; 694 if (param->encoding == AUDIO_ENCODING_ULINEAR_BE || 695 param->encoding == AUDIO_ENCODING_SLINEAR_BE) 696 fmt |= DMRn_BEND; 697 if (param->encoding == AUDIO_ENCODING_ULINEAR_BE || 698 param->encoding == AUDIO_ENCODING_ULINEAR_LE) 699 fmt |= DMRn_USIGN; 700 BA0WRITE4(sc, CS4281_DMR1, fmt); 701 702 /* set sample rate */ 703 sc->sc_rrate = param->sample_rate; 704 cs4281_set_adc_rate(sc, param->sample_rate); 705 706 /* Start DMA */ 707 BA0WRITE4(sc, CS4281_DCR1, BA0READ4(sc, CS4281_DCR1) & ~DCRn_MSK); 708 /* Enable interrupts */ 709 BA0WRITE4(sc, CS4281_HICR, HICR_IEV | HICR_CHGM); 710 711 DPRINTF(("HICR=0x%08x\n", BA0READ4(sc, CS4281_HICR))); 712 DPRINTF(("HIMR=0x%08x\n", BA0READ4(sc, CS4281_HIMR))); 713 DPRINTF(("DMR1=0x%08x\n", BA0READ4(sc, CS4281_DMR1))); 714 DPRINTF(("DCR1=0x%08x\n", BA0READ4(sc, CS4281_DCR1))); 715 716 return 0; 717 } 718 719 static bool 720 cs4281_suspend(device_t dv, const pmf_qual_t *qual) 721 { 722 struct cs428x_softc *sc = device_private(dv); 723 724 /* save current playback status */ 725 if (sc->sc_prun) { 726 sc->sc_suspend_state.cs4281.dcr0 = BA0READ4(sc, CS4281_DCR0); 727 sc->sc_suspend_state.cs4281.dmr0 = BA0READ4(sc, CS4281_DMR0); 728 sc->sc_suspend_state.cs4281.dbc0 = BA0READ4(sc, CS4281_DBC0); 729 sc->sc_suspend_state.cs4281.dba0 = BA0READ4(sc, CS4281_DBA0); 730 } 731 732 /* save current capture status */ 733 if (sc->sc_rrun) { 734 sc->sc_suspend_state.cs4281.dcr1 = BA0READ4(sc, CS4281_DCR1); 735 sc->sc_suspend_state.cs4281.dmr1 = BA0READ4(sc, CS4281_DMR1); 736 sc->sc_suspend_state.cs4281.dbc1 = BA0READ4(sc, CS4281_DBC1); 737 sc->sc_suspend_state.cs4281.dba1 = BA0READ4(sc, CS4281_DBA1); 738 } 739 /* Stop DMA */ 740 BA0WRITE4(sc, CS4281_DCR0, BA0READ4(sc, CS4281_DCR0) | DCRn_MSK); 741 BA0WRITE4(sc, CS4281_DCR1, BA0READ4(sc, CS4281_DCR1) | DCRn_MSK); 742 743 return true; 744 } 745 746 static bool 747 cs4281_resume(device_t dv, const pmf_qual_t *qual) 748 { 749 struct cs428x_softc *sc = device_private(dv); 750 751 cs4281_init(sc, 0); 752 cs4281_reset_codec(sc); 753 754 /* restore ac97 registers */ 755 (*sc->codec_if->vtbl->restore_ports)(sc->codec_if); 756 757 /* restore DMA related status */ 758 if (sc->sc_prun) { 759 cs4281_set_dac_rate(sc, sc->sc_prate); 760 BA0WRITE4(sc, CS4281_DBA0, sc->sc_suspend_state.cs4281.dba0); 761 BA0WRITE4(sc, CS4281_DBC0, sc->sc_suspend_state.cs4281.dbc0); 762 BA0WRITE4(sc, CS4281_DMR0, sc->sc_suspend_state.cs4281.dmr0); 763 BA0WRITE4(sc, CS4281_DCR0, sc->sc_suspend_state.cs4281.dcr0); 764 } 765 if (sc->sc_rrun) { 766 cs4281_set_adc_rate(sc, sc->sc_rrate); 767 BA0WRITE4(sc, CS4281_DBA1, sc->sc_suspend_state.cs4281.dba1); 768 BA0WRITE4(sc, CS4281_DBC1, sc->sc_suspend_state.cs4281.dbc1); 769 BA0WRITE4(sc, CS4281_DMR1, sc->sc_suspend_state.cs4281.dmr1); 770 BA0WRITE4(sc, CS4281_DCR1, sc->sc_suspend_state.cs4281.dcr1); 771 } 772 /* enable intterupts */ 773 if (sc->sc_prun || sc->sc_rrun) 774 BA0WRITE4(sc, CS4281_HICR, HICR_IEV | HICR_CHGM); 775 776 return true; 777 } 778 779 /* control AC97 codec */ 780 static int 781 cs4281_reset_codec(void *addr) 782 { 783 struct cs428x_softc *sc; 784 uint16_t data; 785 uint32_t dat32; 786 int n; 787 788 sc = addr; 789 790 DPRINTFN(3, ("cs4281_reset_codec\n")); 791 792 /* Reset codec */ 793 BA0WRITE4(sc, CS428X_ACCTL, 0); 794 delay(50); /* delay 50us */ 795 796 BA0WRITE4(sc, CS4281_SPMC, 0); 797 delay(100); /* delay 100us */ 798 BA0WRITE4(sc, CS4281_SPMC, SPMC_RSTN); 799 #if defined(ENABLE_SECONDARY_CODEC) 800 BA0WRITE4(sc, CS4281_SPMC, SPMC_RSTN | SPCM_ASDIN2E); 801 BA0WRITE4(sc, CS4281_SERMC, SERMC_TCID); 802 #endif 803 delay(50000); /* XXX: delay 50ms */ 804 805 /* Enable ASYNC generation */ 806 BA0WRITE4(sc, CS428X_ACCTL, ACCTL_ESYN); 807 808 /* Wait for codec ready. Linux driver waits 50ms here */ 809 n = 0; 810 while ((BA0READ4(sc, CS428X_ACSTS) & ACSTS_CRDY) == 0) { 811 delay(100); 812 if (++n > 1000) { 813 printf("reset_codec: AC97 codec ready timeout\n"); 814 return ETIMEDOUT; 815 } 816 } 817 #if defined(ENABLE_SECONDARY_CODEC) 818 /* secondary codec ready*/ 819 n = 0; 820 while ((BA0READ4(sc, CS4281_ACSTS2) & ACSTS2_CRDY2) == 0) { 821 delay(100); 822 if (++n > 1000) 823 return 0; 824 } 825 #endif 826 /* Set the serial timing configuration */ 827 /* XXX: undocumented but the Linux driver do this */ 828 BA0WRITE4(sc, CS4281_SERMC, SERMC_PTCAC97); 829 830 /* Wait for codec ready signal */ 831 n = 0; 832 do { 833 delay(1000); 834 if (++n > 1000) { 835 aprint_error_dev(&sc->sc_dev, 836 "timeout waiting for codec ready\n"); 837 return ETIMEDOUT; 838 } 839 dat32 = BA0READ4(sc, CS428X_ACSTS) & ACSTS_CRDY; 840 } while (dat32 == 0); 841 842 /* Enable Valid Frame output on ASDOUT */ 843 BA0WRITE4(sc, CS428X_ACCTL, ACCTL_ESYN | ACCTL_VFRM); 844 845 /* Wait until codec calibration is finished. Codec register 26h */ 846 n = 0; 847 do { 848 delay(1); 849 if (++n > 1000) { 850 aprint_error_dev(&sc->sc_dev, 851 "timeout waiting for codec calibration\n"); 852 return ETIMEDOUT; 853 } 854 cs428x_read_codec(sc, AC97_REG_POWER, &data); 855 } while ((data & 0x0f) != 0x0f); 856 857 /* Set the serial timing configuration again */ 858 /* XXX: undocumented but the Linux driver do this */ 859 BA0WRITE4(sc, CS4281_SERMC, SERMC_PTCAC97); 860 861 /* Wait until we've sampled input slots 3 & 4 as valid */ 862 n = 0; 863 do { 864 delay(1000); 865 if (++n > 1000) { 866 aprint_error_dev(&sc->sc_dev, "timeout waiting for " 867 "sampled input slots as valid\n"); 868 return ETIMEDOUT; 869 } 870 dat32 = BA0READ4(sc, CS428X_ACISV) & (ACISV_ISV3 | ACISV_ISV4) ; 871 } while (dat32 != (ACISV_ISV3 | ACISV_ISV4)); 872 873 /* Start digital data transfer of audio data to the codec */ 874 BA0WRITE4(sc, CS428X_ACOSV, (ACOSV_SLV3 | ACOSV_SLV4)); 875 return 0; 876 } 877 878 879 /* Internal functions */ 880 881 /* convert sample rate to register value */ 882 static uint8_t 883 cs4281_sr2regval(int rate) 884 { 885 uint8_t retval; 886 887 /* We don't have to change here. but anyway ... */ 888 if (rate > 48000) 889 rate = 48000; 890 if (rate < 6023) 891 rate = 6023; 892 893 switch (rate) { 894 case 8000: 895 retval = 5; 896 break; 897 case 11025: 898 retval = 4; 899 break; 900 case 16000: 901 retval = 3; 902 break; 903 case 22050: 904 retval = 2; 905 break; 906 case 44100: 907 retval = 1; 908 break; 909 case 48000: 910 retval = 0; 911 break; 912 default: 913 retval = 1536000/rate; /* == 24576000/(rate*16) */ 914 } 915 return retval; 916 } 917 918 static void 919 cs4281_set_adc_rate(struct cs428x_softc *sc, int rate) 920 { 921 922 BA0WRITE4(sc, CS4281_ADCSR, cs4281_sr2regval(rate)); 923 } 924 925 static void 926 cs4281_set_dac_rate(struct cs428x_softc *sc, int rate) 927 { 928 929 BA0WRITE4(sc, CS4281_DACSR, cs4281_sr2regval(rate)); 930 } 931 932 static int 933 cs4281_init(struct cs428x_softc *sc, int init) 934 { 935 int n; 936 uint16_t data; 937 uint32_t dat32; 938 939 /* set "Configuration Write Protect" register to 940 * 0x4281 to allow to write */ 941 BA0WRITE4(sc, CS4281_CWPR, 0x4281); 942 943 /* 944 * Unset "Full Power-Down bit of Extended PCI Power Management 945 * Control" register to release the reset state. 946 */ 947 dat32 = BA0READ4(sc, CS4281_EPPMC); 948 if (dat32 & EPPMC_FPDN) { 949 BA0WRITE4(sc, CS4281_EPPMC, dat32 & ~EPPMC_FPDN); 950 } 951 952 /* Start PLL out in known state */ 953 BA0WRITE4(sc, CS4281_CLKCR1, 0); 954 /* Start serial ports out in known state */ 955 BA0WRITE4(sc, CS4281_SERMC, 0); 956 957 /* Reset codec */ 958 BA0WRITE4(sc, CS428X_ACCTL, 0); 959 delay(50); /* delay 50us */ 960 961 BA0WRITE4(sc, CS4281_SPMC, 0); 962 delay(100); /* delay 100us */ 963 BA0WRITE4(sc, CS4281_SPMC, SPMC_RSTN); 964 #if defined(ENABLE_SECONDARY_CODEC) 965 BA0WRITE4(sc, CS4281_SPMC, SPMC_RSTN | SPCM_ASDIN2E); 966 BA0WRITE4(sc, CS4281_SERMC, SERMC_TCID); 967 #endif 968 delay(50000); /* XXX: delay 50ms */ 969 970 /* Turn on Sound System clocks based on ABITCLK */ 971 BA0WRITE4(sc, CS4281_CLKCR1, CLKCR1_DLLP); 972 delay(50000); /* XXX: delay 50ms */ 973 BA0WRITE4(sc, CS4281_CLKCR1, CLKCR1_SWCE | CLKCR1_DLLP); 974 975 /* Set enables for sections that are needed in the SSPM registers */ 976 BA0WRITE4(sc, CS4281_SSPM, 977 SSPM_MIXEN | /* Mixer */ 978 SSPM_CSRCEN | /* Capture SRC */ 979 SSPM_PSRCEN | /* Playback SRC */ 980 SSPM_JSEN | /* Joystick */ 981 SSPM_ACLEN | /* AC LINK */ 982 SSPM_FMEN /* FM */ 983 ); 984 985 /* Wait for clock stabilization */ 986 n = 0; 987 #if 1 988 /* what document says */ 989 while ((BA0READ4(sc, CS4281_CLKCR1)& (CLKCR1_DLLRDY | CLKCR1_CLKON)) 990 != (CLKCR1_DLLRDY | CLKCR1_CLKON)) { 991 delay(100); 992 if (++n > 1000) { 993 aprint_error_dev(&sc->sc_dev, 994 "timeout waiting for clock stabilization\n"); 995 return -1; 996 } 997 } 998 #else 999 /* Cirrus driver for Linux does */ 1000 while (!(BA0READ4(sc, CS4281_CLKCR1) & CLKCR1_DLLRDY)) { 1001 delay(1000); 1002 if (++n > 1000) { 1003 aprint_error_dev(&sc->sc_dev, 1004 "timeout waiting for clock stabilization\n"); 1005 return -1; 1006 } 1007 } 1008 #endif 1009 1010 /* Enable ASYNC generation */ 1011 BA0WRITE4(sc, CS428X_ACCTL, ACCTL_ESYN); 1012 1013 /* Wait for codec ready. Linux driver waits 50ms here */ 1014 n = 0; 1015 while ((BA0READ4(sc, CS428X_ACSTS) & ACSTS_CRDY) == 0) { 1016 delay(100); 1017 if (++n > 1000) { 1018 aprint_error_dev(&sc->sc_dev, 1019 "timeout waiting for codec ready\n"); 1020 return -1; 1021 } 1022 } 1023 1024 #if defined(ENABLE_SECONDARY_CODEC) 1025 /* secondary codec ready*/ 1026 n = 0; 1027 while ((BA0READ4(sc, CS4281_ACSTS2) & ACSTS2_CRDY2) == 0) { 1028 delay(100); 1029 if (++n > 1000) { 1030 aprint_error_dev(&sc->sc_dev, 1031 "timeout waiting for secondary codec ready\n"); 1032 return -1; 1033 } 1034 } 1035 #endif 1036 1037 /* Set the serial timing configuration */ 1038 /* XXX: undocumented but the Linux driver do this */ 1039 BA0WRITE4(sc, CS4281_SERMC, SERMC_PTCAC97); 1040 1041 /* Wait for codec ready signal */ 1042 n = 0; 1043 do { 1044 delay(1000); 1045 if (++n > 1000) { 1046 aprint_error_dev(&sc->sc_dev, 1047 "timeout waiting for codec ready\n"); 1048 return -1; 1049 } 1050 dat32 = BA0READ4(sc, CS428X_ACSTS) & ACSTS_CRDY; 1051 } while (dat32 == 0); 1052 1053 /* Enable Valid Frame output on ASDOUT */ 1054 BA0WRITE4(sc, CS428X_ACCTL, ACCTL_ESYN | ACCTL_VFRM); 1055 1056 /* Wait until codec calibration is finished. codec register 26h */ 1057 n = 0; 1058 do { 1059 delay(1); 1060 if (++n > 1000) { 1061 aprint_error_dev(&sc->sc_dev, 1062 "timeout waiting for codec calibration\n"); 1063 return -1; 1064 } 1065 cs428x_read_codec(sc, AC97_REG_POWER, &data); 1066 } while ((data & 0x0f) != 0x0f); 1067 1068 /* Set the serial timing configuration again */ 1069 /* XXX: undocumented but the Linux driver do this */ 1070 BA0WRITE4(sc, CS4281_SERMC, SERMC_PTCAC97); 1071 1072 /* Wait until we've sampled input slots 3 & 4 as valid */ 1073 n = 0; 1074 do { 1075 delay(1000); 1076 if (++n > 1000) { 1077 aprint_error_dev(&sc->sc_dev, "timeout waiting for " 1078 "sampled input slots as valid\n"); 1079 return -1; 1080 } 1081 dat32 = BA0READ4(sc, CS428X_ACISV) & (ACISV_ISV3 | ACISV_ISV4); 1082 } while (dat32 != (ACISV_ISV3 | ACISV_ISV4)); 1083 1084 /* Start digital data transfer of audio data to the codec */ 1085 BA0WRITE4(sc, CS428X_ACOSV, (ACOSV_SLV3 | ACOSV_SLV4)); 1086 1087 cs428x_write_codec(sc, AC97_REG_HEADPHONE_VOLUME, 0); 1088 cs428x_write_codec(sc, AC97_REG_MASTER_VOLUME, 0); 1089 1090 /* Power on the DAC */ 1091 cs428x_read_codec(sc, AC97_REG_POWER, &data); 1092 cs428x_write_codec(sc, AC97_REG_POWER, data & 0xfdff); 1093 1094 /* Wait until we sample a DAC ready state. 1095 * Not documented, but Linux driver does. 1096 */ 1097 for (n = 0; n < 32; ++n) { 1098 delay(1000); 1099 cs428x_read_codec(sc, AC97_REG_POWER, &data); 1100 if (data & 0x02) 1101 break; 1102 } 1103 1104 /* Power on the ADC */ 1105 cs428x_read_codec(sc, AC97_REG_POWER, &data); 1106 cs428x_write_codec(sc, AC97_REG_POWER, data & 0xfeff); 1107 1108 /* Wait until we sample ADC ready state. 1109 * Not documented, but Linux driver does. 1110 */ 1111 for (n = 0; n < 32; ++n) { 1112 delay(1000); 1113 cs428x_read_codec(sc, AC97_REG_POWER, &data); 1114 if (data & 0x01) 1115 break; 1116 } 1117 1118 #if 0 1119 /* Initialize AC-Link features */ 1120 /* variable sample-rate support */ 1121 mem = BA0READ4(sc, CS4281_SERMC); 1122 mem |= (SERMC_ODSEN1 | SERMC_ODSEN2); 1123 BA0WRITE4(sc, CS4281_SERMC, mem); 1124 /* XXX: more... */ 1125 1126 /* Initialize SSCR register features */ 1127 /* XXX: hardware volume setting */ 1128 BA0WRITE4(sc, CS4281_SSCR, ~SSCR_HVC); /* disable HW volume setting */ 1129 #endif 1130 1131 /* disable Sound Blaster Pro emulation */ 1132 /* XXX: 1133 * Cannot set since the documents does not describe which bit is 1134 * correspond to SSCR_SB. Since the reset value of SSCR is 0, 1135 * we can ignore it.*/ 1136 #if 0 1137 BA0WRITE4(sc, CS4281_SSCR, SSCR_SB); 1138 #endif 1139 1140 /* map AC97 PCM playback to DMA Channel 0 */ 1141 /* Reset FEN bit to setup first */ 1142 BA0WRITE4(sc, CS4281_FCR0, (BA0READ4(sc, CS4281_FCR0) & ~FCRn_FEN)); 1143 /* 1144 *| RS[4:0]/| | 1145 *| LS[4:0] | AC97 | Slot Function 1146 *|---------+--------+-------------------- 1147 *| 0 | 3 | Left PCM Playback 1148 *| 1 | 4 | Right PCM Playback 1149 *| 2 | 5 | Phone Line 1 DAC 1150 *| 3 | 6 | Center PCM Playback 1151 *.... 1152 * quoted from Table 29(p109) 1153 */ 1154 dat32 = 0x01 << 24 | /* RS[4:0] = 1 see above */ 1155 0x00 << 16 | /* LS[4:0] = 0 see above */ 1156 0x0f << 8 | /* SZ[6:0] = 15 size of buffer */ 1157 0x00 << 0 ; /* OF[6:0] = 0 offset */ 1158 BA0WRITE4(sc, CS4281_FCR0, dat32); 1159 BA0WRITE4(sc, CS4281_FCR0, dat32 | FCRn_FEN); 1160 1161 /* map AC97 PCM record to DMA Channel 1 */ 1162 /* Reset FEN bit to setup first */ 1163 BA0WRITE4(sc, CS4281_FCR1, (BA0READ4(sc, CS4281_FCR1) & ~FCRn_FEN)); 1164 /* 1165 *| RS[4:0]/| 1166 *| LS[4:0] | AC97 | Slot Function 1167 *|---------+------+------------------- 1168 *| 10 | 3 | Left PCM Record 1169 *| 11 | 4 | Right PCM Record 1170 *| 12 | 5 | Phone Line 1 ADC 1171 *| 13 | 6 | Mic ADC 1172 *.... 1173 * quoted from Table 30(p109) 1174 */ 1175 dat32 = 0x0b << 24 | /* RS[4:0] = 11 See above */ 1176 0x0a << 16 | /* LS[4:0] = 10 See above */ 1177 0x0f << 8 | /* SZ[6:0] = 15 Size of buffer */ 1178 0x10 << 0 ; /* OF[6:0] = 16 offset */ 1179 1180 /* XXX: I cannot understand why FCRn_PSH is needed here. */ 1181 BA0WRITE4(sc, CS4281_FCR1, dat32 | FCRn_PSH); 1182 BA0WRITE4(sc, CS4281_FCR1, dat32 | FCRn_FEN); 1183 1184 #if 0 1185 /* Disable DMA Channel 2, 3 */ 1186 BA0WRITE4(sc, CS4281_FCR2, (BA0READ4(sc, CS4281_FCR2) & ~FCRn_FEN)); 1187 BA0WRITE4(sc, CS4281_FCR3, (BA0READ4(sc, CS4281_FCR3) & ~FCRn_FEN)); 1188 #endif 1189 1190 /* Set the SRC Slot Assignment accordingly */ 1191 /*| PLSS[4:0]/ 1192 *| PRSS[4:0] | AC97 | Slot Function 1193 *|-----------+------+---------------- 1194 *| 0 | 3 | Left PCM Playback 1195 *| 1 | 4 | Right PCM Playback 1196 *| 2 | 5 | phone line 1 DAC 1197 *| 3 | 6 | Center PCM Playback 1198 *| 4 | 7 | Left Surround PCM Playback 1199 *| 5 | 8 | Right Surround PCM Playback 1200 *...... 1201 * 1202 *| CLSS[4:0]/ 1203 *| CRSS[4:0] | AC97 | Codec |Slot Function 1204 *|-----------+------+-------+----------------- 1205 *| 10 | 3 |Primary| Left PCM Record 1206 *| 11 | 4 |Primary| Right PCM Record 1207 *| 12 | 5 |Primary| Phone Line 1 ADC 1208 *| 13 | 6 |Primary| Mic ADC 1209 *|..... 1210 *| 20 | 3 | Sec. | Left PCM Record 1211 *| 21 | 4 | Sec. | Right PCM Record 1212 *| 22 | 5 | Sec. | Phone Line 1 ADC 1213 *| 23 | 6 | Sec. | Mic ADC 1214 */ 1215 dat32 = 0x0b << 24 | /* CRSS[4:0] Right PCM Record(primary) */ 1216 0x0a << 16 | /* CLSS[4:0] Left PCM Record(primary) */ 1217 0x01 << 8 | /* PRSS[4:0] Right PCM Playback */ 1218 0x00 << 0; /* PLSS[4:0] Left PCM Playback */ 1219 BA0WRITE4(sc, CS4281_SRCSA, dat32); 1220 1221 /* Set interrupt to occurred at Half and Full terminal 1222 * count interrupt enable for DMA channel 0 and 1. 1223 * To keep DMA stop, set MSK. 1224 */ 1225 dat32 = DCRn_HTCIE | DCRn_TCIE | DCRn_MSK; 1226 BA0WRITE4(sc, CS4281_DCR0, dat32); 1227 BA0WRITE4(sc, CS4281_DCR1, dat32); 1228 1229 /* Set Auto-Initialize Contorl enable */ 1230 BA0WRITE4(sc, CS4281_DMR0, 1231 DMRn_DMA | DMRn_AUTO | DMRn_TR_READ); 1232 BA0WRITE4(sc, CS4281_DMR1, 1233 DMRn_DMA | DMRn_AUTO | DMRn_TR_WRITE); 1234 1235 /* Clear DMA Mask in HIMR */ 1236 dat32 = ~HIMR_DMAIM & ~HIMR_D1IM & ~HIMR_D0IM; 1237 BA0WRITE4(sc, CS4281_HIMR, 1238 BA0READ4(sc, CS4281_HIMR) & dat32); 1239 1240 /* set current status */ 1241 if (init != 0) { 1242 sc->sc_prun = 0; 1243 sc->sc_rrun = 0; 1244 } 1245 1246 /* setup playback volume */ 1247 BA0WRITE4(sc, CS4281_PPRVC, 7); 1248 BA0WRITE4(sc, CS4281_PPLVC, 7); 1249 1250 return 0; 1251 } 1252