1 /* $OpenBSD: neo.c,v 1.26 2010/09/07 16:21:45 deraadt Exp $ */ 2 3 /* 4 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk> 5 * All rights reserved. 6 * 7 * Derived from the public domain Linux driver 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $FreeBSD: src/sys/dev/sound/pci/neomagic.c,v 1.8 2000/03/20 15:30:50 cg Exp $ 31 */ 32 33 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #include <sys/malloc.h> 39 #include <sys/device.h> 40 41 #include <dev/pci/pcidevs.h> 42 #include <dev/pci/pcivar.h> 43 44 #include <sys/audioio.h> 45 #include <dev/audio_if.h> 46 #include <dev/mulaw.h> 47 #include <dev/auconv.h> 48 #include <dev/ic/ac97.h> 49 50 #include <dev/pci/neoreg.h> 51 52 /* -------------------------------------------------------------------- */ 53 /* 54 * As of 04/13/00, public documentation on the Neomagic 256 is not available. 55 * These comments were gleaned by looking at the driver carefully. 56 * 57 * The Neomagic 256 AV/ZX chips provide both video and audio capabilities 58 * on one chip. About 2-6 megabytes of memory are associated with 59 * the chip. Most of this goes to video frame buffers, but some is used for 60 * audio buffering. 61 * 62 * Unlike most PCI audio chips, the Neomagic chip does not rely on DMA. 63 * Instead, the chip allows you to carve two ring buffers out of its 64 * memory. How you carve this and how much you can carve seems to be 65 * voodoo. The algorithm is in nm_init. 66 * 67 * Most Neomagic audio chips use the AC-97 codec interface. However, there 68 * seem to be a select few chips 256AV chips that do not support AC-97. 69 * This driver does not support them but there are rumors that it 70 * might work with wss isa drivers. This might require some playing around 71 * with your BIOS. 72 * 73 * The Neomagic 256 AV/ZX have 2 PCI I/O region descriptors. Both of 74 * them describe a memory region. The frame buffer is the first region 75 * and the register set is the second region. 76 * 77 * The register manipulation logic is taken from the Linux driver, 78 * which is in the public domain. 79 * 80 * The Neomagic is even nice enough to map the AC-97 codec registers into 81 * the register space to allow direct manipulation. Watch out, accessing 82 * AC-97 registers on the Neomagic requires great delicateness, otherwise 83 * the thing will hang the PCI bus, rendering your system frozen. 84 * 85 * For one, it seems the Neomagic status register that reports AC-97 86 * readiness should NOT be polled more often than once each 1ms. 87 * 88 * Also, writes to the AC-97 register space may take over 40us to 89 * complete. 90 * 91 * Unlike many sound engines, the Neomagic does not support (as fas as 92 * we know :) ) the notion of interrupting every n bytes transferred, 93 * unlike many DMA engines. Instead, it allows you to specify one 94 * location in each ring buffer (called the watermark). When the chip 95 * passes that location while playing, it signals an interrupt. 96 * 97 * The ring buffer size is currently 16k. That is about 100ms of audio 98 * at 44.1khz/stero/16 bit. However, to keep the buffer full, interrupts 99 * are generated more often than that, so 20-40 interrupts per second 100 * should not be unexpected. Increasing BUFFSIZE should help minimize 101 * the glitches due to drivers that spend too much time looping at high 102 * privelege levels as well as the impact of badly written audio 103 * interface clients. 104 * 105 * TO-DO list: 106 * neo_malloc/neo_free are still seriously broken. 107 * 108 * Figure out interaction with video stuff (look at Xfree86 driver?) 109 * 110 * Power management (neoactivate) 111 * 112 * Fix detection of Neo devices that don't work this driver (see neo_attach) 113 * 114 * Figure out how to shrink that huge table neo-coeff.h 115 */ 116 117 #define NM_BUFFSIZE 16384 118 119 #define NM256AV_PCI_ID 0x800510c8 120 #define NM256ZX_PCI_ID 0x800610c8 121 122 /* device private data */ 123 struct neo_softc { 124 struct device dev; 125 126 bus_space_tag_t bufiot; 127 bus_space_handle_t bufioh; 128 129 bus_space_tag_t regiot; 130 bus_space_handle_t regioh; 131 132 u_int32_t type; 133 void *ih; 134 135 void (*pintr)(void *); /* dma completion intr handler */ 136 void *parg; /* arg for intr() */ 137 138 void (*rintr)(void *); /* dma completion intr handler */ 139 void *rarg; /* arg for intr() */ 140 141 u_int32_t ac97_base, ac97_status, ac97_busy; 142 u_int32_t buftop, pbuf, rbuf, cbuf, acbuf; 143 u_int32_t playint, recint, misc1int, misc2int; 144 u_int32_t irsz, badintr; 145 146 u_int32_t pbufsize; 147 u_int32_t rbufsize; 148 149 u_int32_t pblksize; 150 u_int32_t rblksize; 151 152 u_int32_t pwmark; 153 u_int32_t rwmark; 154 155 struct ac97_codec_if *codec_if; 156 struct ac97_host_if host_if; 157 }; 158 159 static struct neo_firmware *nf; 160 161 /* -------------------------------------------------------------------- */ 162 163 /* 164 * prototypes 165 */ 166 167 static int nm_waitcd(struct neo_softc *sc); 168 static int nm_loadcoeff(struct neo_softc *sc, int dir, int num); 169 static int nm_init(struct neo_softc *); 170 171 int nmchan_getptr(struct neo_softc *, int); 172 /* talk to the card */ 173 static u_int32_t nm_rd(struct neo_softc *, int, int); 174 static void nm_wr(struct neo_softc *, int, u_int32_t, int); 175 static u_int32_t nm_rdbuf(struct neo_softc *, int, int); 176 static void nm_wrbuf(struct neo_softc *, int, u_int32_t, int); 177 178 int neo_match(struct device *, void *, void *); 179 void neo_attach(struct device *, struct device *, void *); 180 int neo_activate(struct device *, int); 181 int neo_intr(void *); 182 183 int neo_open(void *, int); 184 void neo_close(void *); 185 int neo_query_encoding(void *, struct audio_encoding *); 186 int neo_set_params(void *, int, int, struct audio_params *, struct audio_params *); 187 void neo_get_default_params(void *, int, struct audio_params *); 188 int neo_round_blocksize(void *, int); 189 int neo_trigger_output(void *, void *, void *, int, void (*)(void *), 190 void *, struct audio_params *); 191 int neo_trigger_input(void *, void *, void *, int, void (*)(void *), 192 void *, struct audio_params *); 193 int neo_halt_output(void *); 194 int neo_halt_input(void *); 195 int neo_getdev(void *, struct audio_device *); 196 int neo_mixer_set_port(void *, mixer_ctrl_t *); 197 int neo_mixer_get_port(void *, mixer_ctrl_t *); 198 int neo_attach_codec(void *sc, struct ac97_codec_if *); 199 int neo_read_codec(void *sc, u_int8_t a, u_int16_t *d); 200 int neo_write_codec(void *sc, u_int8_t a, u_int16_t d); 201 void neo_reset_codec(void *sc); 202 enum ac97_host_flags neo_flags_codec(void *sc); 203 int neo_query_devinfo(void *, mixer_devinfo_t *); 204 void *neo_malloc(void *, int, size_t, int, int); 205 void neo_free(void *, void *, int); 206 size_t neo_round_buffersize(void *, int, size_t); 207 int neo_get_props(void *); 208 void neo_set_mixer(struct neo_softc *sc, int a, int d); 209 210 struct cfdriver neo_cd = { 211 NULL, "neo", DV_DULL 212 }; 213 214 215 struct cfattach neo_ca = { 216 sizeof(struct neo_softc), neo_match, neo_attach, NULL, 217 neo_activate 218 }; 219 220 221 struct audio_device neo_device = { 222 "NeoMagic 256", 223 "", 224 "neo" 225 }; 226 227 #if 0 228 static u_int32_t badcards[] = { 229 0x0007103c, 230 0x008f1028, 231 }; 232 #endif 233 234 #define NUM_BADCARDS (sizeof(badcards) / sizeof(u_int32_t)) 235 236 /* The actual rates supported by the card. */ 237 static int samplerates[9] = { 238 8000, 239 11025, 240 16000, 241 22050, 242 24000, 243 32000, 244 44100, 245 48000, 246 99999999 247 }; 248 249 /* -------------------------------------------------------------------- */ 250 251 struct audio_hw_if neo_hw_if = { 252 neo_open, 253 neo_close, 254 NULL, 255 neo_query_encoding, 256 neo_set_params, 257 #if 1 258 neo_round_blocksize, 259 #else 260 NULL, 261 #endif 262 NULL, 263 NULL, 264 NULL, 265 NULL, 266 NULL, 267 neo_halt_output, 268 neo_halt_input, 269 NULL, 270 neo_getdev, 271 NULL, 272 neo_mixer_set_port, 273 neo_mixer_get_port, 274 neo_query_devinfo, 275 neo_malloc, 276 neo_free, 277 neo_round_buffersize, 278 0, /* neo_mappage, */ 279 neo_get_props, 280 neo_trigger_output, 281 neo_trigger_input, 282 neo_get_default_params 283 284 }; 285 286 /* -------------------------------------------------------------------- */ 287 288 /* Hardware */ 289 static u_int32_t 290 nm_rd(struct neo_softc *sc, int regno, int size) 291 { 292 bus_space_tag_t st = sc->regiot; 293 bus_space_handle_t sh = sc->regioh; 294 295 switch (size) { 296 case 1: 297 return bus_space_read_1(st, sh, regno); 298 case 2: 299 return bus_space_read_2(st, sh, regno); 300 case 4: 301 return bus_space_read_4(st, sh, regno); 302 default: 303 return (0xffffffff); 304 } 305 } 306 307 static void 308 nm_wr(struct neo_softc *sc, int regno, u_int32_t data, int size) 309 { 310 bus_space_tag_t st = sc->regiot; 311 bus_space_handle_t sh = sc->regioh; 312 313 switch (size) { 314 case 1: 315 bus_space_write_1(st, sh, regno, data); 316 break; 317 case 2: 318 bus_space_write_2(st, sh, regno, data); 319 break; 320 case 4: 321 bus_space_write_4(st, sh, regno, data); 322 break; 323 } 324 } 325 326 static u_int32_t 327 nm_rdbuf(struct neo_softc *sc, int regno, int size) 328 { 329 bus_space_tag_t st = sc->bufiot; 330 bus_space_handle_t sh = sc->bufioh; 331 332 switch (size) { 333 case 1: 334 return bus_space_read_1(st, sh, regno); 335 case 2: 336 return bus_space_read_2(st, sh, regno); 337 case 4: 338 return bus_space_read_4(st, sh, regno); 339 default: 340 return (0xffffffff); 341 } 342 } 343 344 static void 345 nm_wrbuf(struct neo_softc *sc, int regno, u_int32_t data, int size) 346 { 347 bus_space_tag_t st = sc->bufiot; 348 bus_space_handle_t sh = sc->bufioh; 349 350 switch (size) { 351 case 1: 352 bus_space_write_1(st, sh, regno, data); 353 break; 354 case 2: 355 bus_space_write_2(st, sh, regno, data); 356 break; 357 case 4: 358 bus_space_write_4(st, sh, regno, data); 359 break; 360 } 361 } 362 363 /* ac97 codec */ 364 static int 365 nm_waitcd(struct neo_softc *sc) 366 { 367 int cnt = 10; 368 int fail = 1; 369 370 while (cnt-- > 0) { 371 if (nm_rd(sc, sc->ac97_status, 2) & sc->ac97_busy) 372 DELAY(100); 373 else { 374 fail = 0; 375 break; 376 } 377 } 378 return (fail); 379 } 380 381 382 static void 383 nm_ackint(struct neo_softc *sc, u_int32_t num) 384 { 385 if (sc->type == NM256AV_PCI_ID) 386 nm_wr(sc, NM_INT_REG, num << 1, 2); 387 else if (sc->type == NM256ZX_PCI_ID) 388 nm_wr(sc, NM_INT_REG, num, 4); 389 } 390 391 static int 392 nm_loadcoeff(struct neo_softc *sc, int dir, int num) 393 { 394 int ofs, sz, i; 395 u_int32_t addr; 396 397 if (nf == NULL) { 398 size_t buflen; 399 u_char *buf; 400 int error; 401 402 error = loadfirmware("neo-coefficients", &buf, &buflen); 403 if (error) 404 return (error); 405 nf = (struct neo_firmware *)buf; 406 } 407 408 addr = (dir == AUMODE_PLAY)? 0x01c : 0x21c; 409 if (dir == AUMODE_RECORD) 410 num += 8; 411 sz = nf->coefficientSizes[num]; 412 ofs = 0; 413 while (num-- > 0) 414 ofs+= nf->coefficientSizes[num]; 415 for (i = 0; i < sz; i++) 416 nm_wrbuf(sc, sc->cbuf + i, nf->coefficients[ofs + i], 1); 417 nm_wr(sc, addr, sc->cbuf, 4); 418 if (dir == AUMODE_PLAY) 419 sz--; 420 nm_wr(sc, addr + 4, sc->cbuf + sz, 4); 421 return (0); 422 } 423 424 int 425 nmchan_getptr(sc, mode) 426 struct neo_softc *sc; 427 int mode; 428 { 429 if (mode == AUMODE_PLAY) 430 return (nm_rd(sc, NM_PBUFFER_CURRP, 4) - sc->pbuf); 431 else 432 return (nm_rd(sc, NM_RBUFFER_CURRP, 4) - sc->rbuf); 433 } 434 435 436 /* The interrupt handler */ 437 int 438 neo_intr(void *p) 439 { 440 struct neo_softc *sc = (struct neo_softc *)p; 441 int status, x; 442 int rv = 0; 443 444 status = nm_rd(sc, NM_INT_REG, sc->irsz); 445 446 if (status & sc->playint) { 447 status &= ~sc->playint; 448 449 sc->pwmark += sc->pblksize; 450 sc->pwmark %= sc->pbufsize; 451 452 nm_wr(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark, 4); 453 454 nm_ackint(sc, sc->playint); 455 456 if (sc->pintr) 457 (*sc->pintr)(sc->parg); 458 459 rv = 1; 460 } 461 if (status & sc->recint) { 462 status &= ~sc->recint; 463 464 sc->rwmark += sc->rblksize; 465 sc->rwmark %= sc->rbufsize; 466 467 nm_ackint(sc, sc->recint); 468 if (sc->rintr) 469 (*sc->rintr)(sc->rarg); 470 471 rv = 1; 472 } 473 if (status & sc->misc1int) { 474 status &= ~sc->misc1int; 475 nm_ackint(sc, sc->misc1int); 476 x = nm_rd(sc, 0x400, 1); 477 nm_wr(sc, 0x400, x | 2, 1); 478 printf("%s: misc int 1\n", sc->dev.dv_xname); 479 rv = 1; 480 } 481 if (status & sc->misc2int) { 482 status &= ~sc->misc2int; 483 nm_ackint(sc, sc->misc2int); 484 x = nm_rd(sc, 0x400, 1); 485 nm_wr(sc, 0x400, x & ~2, 1); 486 printf("%s: misc int 2\n", sc->dev.dv_xname); 487 rv = 1; 488 } 489 if (status) { 490 status &= ~sc->misc2int; 491 nm_ackint(sc, sc->misc2int); 492 printf("%s: unknown int\n", sc->dev.dv_xname); 493 rv = 1; 494 } 495 496 return (rv); 497 } 498 499 /* -------------------------------------------------------------------- */ 500 501 /* 502 * Probe and attach the card 503 */ 504 505 static int 506 nm_init(struct neo_softc *sc) 507 { 508 u_int32_t ofs, i; 509 510 if (sc->type == NM256AV_PCI_ID) { 511 sc->ac97_base = NM_MIXER_OFFSET; 512 sc->ac97_status = NM_MIXER_STATUS_OFFSET; 513 sc->ac97_busy = NM_MIXER_READY_MASK; 514 515 sc->buftop = 2560 * 1024; 516 517 sc->irsz = 2; 518 sc->playint = NM_PLAYBACK_INT; 519 sc->recint = NM_RECORD_INT; 520 sc->misc1int = NM_MISC_INT_1; 521 sc->misc2int = NM_MISC_INT_2; 522 } else if (sc->type == NM256ZX_PCI_ID) { 523 sc->ac97_base = NM_MIXER_OFFSET; 524 sc->ac97_status = NM2_MIXER_STATUS_OFFSET; 525 sc->ac97_busy = NM2_MIXER_READY_MASK; 526 527 sc->buftop = (nm_rd(sc, 0xa0b, 2)? 6144 : 4096) * 1024; 528 529 sc->irsz = 4; 530 sc->playint = NM2_PLAYBACK_INT; 531 sc->recint = NM2_RECORD_INT; 532 sc->misc1int = NM2_MISC_INT_1; 533 sc->misc2int = NM2_MISC_INT_2; 534 } else return -1; 535 sc->badintr = 0; 536 ofs = sc->buftop - 0x0400; 537 sc->buftop -= 0x1400; 538 539 if ((nm_rdbuf(sc, ofs, 4) & NM_SIG_MASK) == NM_SIGNATURE) { 540 i = nm_rdbuf(sc, ofs + 4, 4); 541 if (i != 0 && i != 0xffffffff) 542 sc->buftop = i; 543 } 544 545 sc->cbuf = sc->buftop - NM_MAX_COEFFICIENT; 546 sc->rbuf = sc->cbuf - NM_BUFFSIZE; 547 sc->pbuf = sc->rbuf - NM_BUFFSIZE; 548 sc->acbuf = sc->pbuf - (NM_TOTAL_COEFF_COUNT * 4); 549 550 nm_wr(sc, 0, 0x11, 1); 551 nm_wr(sc, NM_RECORD_ENABLE_REG, 0, 1); 552 nm_wr(sc, 0x214, 0, 2); 553 554 return 0; 555 } 556 557 558 void 559 neo_attach(parent, self, aux) 560 struct device *parent; 561 struct device *self; 562 void *aux; 563 { 564 struct neo_softc *sc = (struct neo_softc *)self; 565 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 566 pci_chipset_tag_t pc = pa->pa_pc; 567 char const *intrstr; 568 pci_intr_handle_t ih; 569 int error; 570 571 sc->type = pa->pa_id; 572 573 /* Map I/O register */ 574 if (pci_mapreg_map(pa, PCI_MAPS, PCI_MAPREG_TYPE_MEM, 0, 575 &sc->bufiot, &sc->bufioh, NULL, NULL, 0)) { 576 printf("\n%s: can't map i/o space\n", sc->dev.dv_xname); 577 return; 578 } 579 580 581 if (pci_mapreg_map(pa, PCI_MAPS + 4, PCI_MAPREG_TYPE_MEM, 0, 582 &sc->regiot, &sc->regioh, NULL, NULL, 0)) { 583 printf("\n%s: can't map i/o space\n", sc->dev.dv_xname); 584 return; 585 } 586 587 /* Map and establish the interrupt. */ 588 if (pci_intr_map(pa, &ih)) { 589 printf("\n%s: couldn't map interrupt\n", sc->dev.dv_xname); 590 return; 591 } 592 intrstr = pci_intr_string(pc, ih); 593 sc->ih = pci_intr_establish(pc, ih, IPL_AUDIO, neo_intr, sc, 594 sc->dev.dv_xname); 595 596 if (sc->ih == NULL) { 597 printf("\n%s: couldn't establish interrupt", 598 sc->dev.dv_xname); 599 if (intrstr != NULL) 600 printf(" at %s", intrstr); 601 printf("\n"); 602 return; 603 } 604 printf(": %s\n", intrstr); 605 606 if ((error = nm_init(sc)) != 0) 607 return; 608 609 sc->host_if.arg = sc; 610 611 sc->host_if.attach = neo_attach_codec; 612 sc->host_if.read = neo_read_codec; 613 sc->host_if.write = neo_write_codec; 614 sc->host_if.reset = neo_reset_codec; 615 sc->host_if.flags = neo_flags_codec; 616 617 if ((error = ac97_attach(&sc->host_if)) != 0) 618 return; 619 620 audio_attach_mi(&neo_hw_if, sc, &sc->dev); 621 622 return; 623 } 624 625 int 626 neo_activate(struct device *self, int act) 627 { 628 struct neo_softc *sc = (struct neo_softc *)self; 629 630 switch (act) { 631 case DVACT_SUSPEND: 632 break; 633 case DVACT_RESUME: 634 nm_init(sc); 635 (sc->codec_if->vtbl->restore_ports)(sc->codec_if); 636 break; 637 } 638 return 0; 639 } 640 641 int 642 neo_match(parent, match, aux) 643 struct device *parent; 644 void *match; 645 void *aux; 646 { 647 struct pci_attach_args *pa = (struct pci_attach_args *) aux; 648 #if 0 649 u_int32_t subdev, badcard; 650 #endif 651 652 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_NEOMAGIC) 653 return (0); 654 655 #if 0 656 subdev = (pci_get_subdevice(dev) << 16) | pci_get_subvendor(dev); 657 #endif 658 switch (PCI_PRODUCT(pa->pa_id)) { 659 case PCI_PRODUCT_NEOMAGIC_NM256AV: 660 #if 0 661 i = 0; 662 while ((i < NUM_BADCARDS) && (badcards[i] != subdev)) 663 i++; 664 if (i == NUM_BADCARDS) 665 s = "NeoMagic 256AV"; 666 DEB(else) 667 DEB(device_printf(dev, "this is a non-ac97 NM256AV, not attaching\n")); 668 return (1); 669 #endif 670 case PCI_PRODUCT_NEOMAGIC_NM256ZX: 671 return (1); 672 } 673 674 return (0); 675 } 676 677 int 678 neo_read_codec(sc_, a, d) 679 void *sc_; 680 u_int8_t a; 681 u_int16_t *d; 682 { 683 struct neo_softc *sc = sc_; 684 685 if (!nm_waitcd(sc)) { 686 *d = nm_rd(sc, sc->ac97_base + a, 2); 687 DELAY(1000); 688 return 0; 689 } 690 691 return (ENXIO); 692 } 693 694 695 int 696 neo_write_codec(sc_, a, d) 697 void *sc_; 698 u_int8_t a; 699 u_int16_t d; 700 { 701 struct neo_softc *sc = sc_; 702 int cnt = 3; 703 704 if (!nm_waitcd(sc)) { 705 while (cnt-- > 0) { 706 nm_wr(sc, sc->ac97_base + a, d, 2); 707 if (!nm_waitcd(sc)) { 708 DELAY(1000); 709 return (0); 710 } 711 } 712 } 713 714 return (ENXIO); 715 } 716 717 718 int 719 neo_attach_codec(sc_, codec_if) 720 void *sc_; 721 struct ac97_codec_if *codec_if; 722 { 723 struct neo_softc *sc = sc_; 724 725 sc->codec_if = codec_if; 726 return (0); 727 } 728 729 void 730 neo_reset_codec(sc) 731 void *sc; 732 { 733 nm_wr(sc, 0x6c0, 0x01, 1); 734 nm_wr(sc, 0x6cc, 0x87, 1); 735 nm_wr(sc, 0x6cc, 0x80, 1); 736 nm_wr(sc, 0x6cc, 0x00, 1); 737 738 return; 739 } 740 741 742 enum ac97_host_flags 743 neo_flags_codec(sc) 744 void *sc; 745 { 746 return (AC97_HOST_DONT_READANY); 747 } 748 749 int 750 neo_open(addr, flags) 751 void *addr; 752 int flags; 753 { 754 return (0); 755 } 756 757 /* 758 * Close function is called at splaudio(). 759 */ 760 void 761 neo_close(addr) 762 void *addr; 763 { 764 struct neo_softc *sc = addr; 765 766 neo_halt_output(sc); 767 neo_halt_input(sc); 768 769 sc->pintr = 0; 770 sc->rintr = 0; 771 } 772 773 int 774 neo_query_encoding(addr, fp) 775 void *addr; 776 struct audio_encoding *fp; 777 { 778 switch (fp->index) { 779 case 0: 780 strlcpy(fp->name, AudioEulinear, sizeof fp->name); 781 fp->encoding = AUDIO_ENCODING_ULINEAR; 782 fp->precision = 8; 783 fp->flags = 0; 784 break; 785 case 1: 786 strlcpy(fp->name, AudioEmulaw, sizeof fp->name); 787 fp->encoding = AUDIO_ENCODING_ULAW; 788 fp->precision = 8; 789 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 790 break; 791 case 2: 792 strlcpy(fp->name, AudioEalaw, sizeof fp->name); 793 fp->encoding = AUDIO_ENCODING_ALAW; 794 fp->precision = 8; 795 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 796 break; 797 case 3: 798 strlcpy(fp->name, AudioEslinear, sizeof fp->name); 799 fp->encoding = AUDIO_ENCODING_SLINEAR; 800 fp->precision = 8; 801 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 802 break; 803 case 4: 804 strlcpy(fp->name, AudioEslinear_le, sizeof fp->name); 805 fp->encoding = AUDIO_ENCODING_SLINEAR_LE; 806 fp->precision = 16; 807 fp->flags = 0; 808 break; 809 case 5: 810 strlcpy(fp->name, AudioEulinear_le, sizeof fp->name); 811 fp->encoding = AUDIO_ENCODING_ULINEAR_LE; 812 fp->precision = 16; 813 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 814 break; 815 case 6: 816 strlcpy(fp->name, AudioEslinear_be, sizeof fp->name); 817 fp->encoding = AUDIO_ENCODING_SLINEAR_BE; 818 fp->precision = 16; 819 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 820 break; 821 case 7: 822 strlcpy(fp->name, AudioEulinear_be, sizeof fp->name); 823 fp->encoding = AUDIO_ENCODING_ULINEAR_BE; 824 fp->precision = 16; 825 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 826 break; 827 default: 828 return (EINVAL); 829 } 830 fp->bps = AUDIO_BPS(fp->precision); 831 fp->msb = 1; 832 833 return (0); 834 } 835 836 void 837 neo_get_default_params(void *addr, int mode, struct audio_params *params) 838 { 839 ac97_get_default_params(params); 840 } 841 842 /* Todo: don't commit settings to card until we've verified all parameters */ 843 int 844 neo_set_params(addr, setmode, usemode, play, rec) 845 void *addr; 846 int setmode, usemode; 847 struct audio_params *play, *rec; 848 { 849 struct neo_softc *sc = addr; 850 u_int32_t base; 851 u_int8_t x; 852 int mode; 853 struct audio_params *p; 854 855 for (mode = AUMODE_RECORD; mode != -1; 856 mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) { 857 if ((setmode & mode) == 0) 858 continue; 859 860 p = mode == AUMODE_PLAY ? play : rec; 861 862 if (p == NULL) continue; 863 864 for (x = 0; x < 8; x++) 865 if (p->sample_rate < (samplerates[x] + samplerates[x + 1]) / 2) 866 break; 867 868 p->sample_rate = samplerates[x]; 869 nm_loadcoeff(sc, mode, x); 870 871 x <<= 4; 872 x &= NM_RATE_MASK; 873 if (p->precision == 16) x |= NM_RATE_BITS_16; 874 if (p->channels == 2) x |= NM_RATE_STEREO; 875 876 base = (mode == AUMODE_PLAY) ? 877 NM_PLAYBACK_REG_OFFSET : NM_RECORD_REG_OFFSET; 878 nm_wr(sc, base + NM_RATE_REG_OFFSET, x, 1); 879 880 p->factor = 1; 881 p->sw_code = 0; 882 switch (p->encoding) { 883 case AUDIO_ENCODING_SLINEAR_BE: 884 if (p->precision == 16) 885 p->sw_code = swap_bytes; 886 else 887 p->sw_code = change_sign8; 888 break; 889 case AUDIO_ENCODING_SLINEAR_LE: 890 if (p->precision != 16) 891 p->sw_code = change_sign8; 892 break; 893 case AUDIO_ENCODING_ULINEAR_BE: 894 if (p->precision == 16) { 895 if (mode == AUMODE_PLAY) 896 p->sw_code = swap_bytes_change_sign16_le; 897 else 898 p->sw_code = change_sign16_swap_bytes_le; 899 } 900 break; 901 case AUDIO_ENCODING_ULINEAR_LE: 902 if (p->precision == 16) 903 p->sw_code = change_sign16_le; 904 break; 905 case AUDIO_ENCODING_ULAW: 906 if (mode == AUMODE_PLAY) { 907 p->factor = 2; 908 p->sw_code = mulaw_to_slinear16_le; 909 } else 910 p->sw_code = ulinear8_to_mulaw; 911 break; 912 case AUDIO_ENCODING_ALAW: 913 if (mode == AUMODE_PLAY) { 914 p->factor = 2; 915 p->sw_code = alaw_to_slinear16_le; 916 } else 917 p->sw_code = ulinear8_to_alaw; 918 break; 919 default: 920 return (EINVAL); 921 } 922 p->bps = AUDIO_BPS(p->precision); 923 p->msb = 1; 924 } 925 926 return (0); 927 } 928 929 int 930 neo_round_blocksize(addr, blk) 931 void *addr; 932 int blk; 933 { 934 return (NM_BUFFSIZE / 2); 935 } 936 937 int 938 neo_trigger_output(addr, start, end, blksize, intr, arg, param) 939 void *addr; 940 void *start, *end; 941 int blksize; 942 void (*intr)(void *); 943 void *arg; 944 struct audio_params *param; 945 { 946 struct neo_softc *sc = addr; 947 int ssz; 948 949 sc->pintr = intr; 950 sc->parg = arg; 951 952 ssz = (param->precision * param->factor == 16)? 2 : 1; 953 if (param->channels == 2) 954 ssz <<= 1; 955 956 sc->pbufsize = ((char *)end - (char *)start); 957 sc->pblksize = blksize; 958 sc->pwmark = blksize; 959 960 nm_wr(sc, NM_PBUFFER_START, sc->pbuf, 4); 961 nm_wr(sc, NM_PBUFFER_END, sc->pbuf + sc->pbufsize - ssz, 4); 962 nm_wr(sc, NM_PBUFFER_CURRP, sc->pbuf, 4); 963 nm_wr(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark, 4); 964 nm_wr(sc, NM_PLAYBACK_ENABLE_REG, NM_PLAYBACK_FREERUN | 965 NM_PLAYBACK_ENABLE_FLAG, 1); 966 nm_wr(sc, NM_AUDIO_MUTE_REG, 0, 2); 967 968 return (0); 969 } 970 971 972 973 int 974 neo_trigger_input(addr, start, end, blksize, intr, arg, param) 975 void *addr; 976 void *start, *end; 977 int blksize; 978 void (*intr)(void *); 979 void *arg; 980 struct audio_params *param; 981 { 982 struct neo_softc *sc = addr; 983 int ssz; 984 985 sc->rintr = intr; 986 sc->rarg = arg; 987 988 ssz = (param->precision * param->factor == 16)? 2 : 1; 989 if (param->channels == 2) 990 ssz <<= 1; 991 992 sc->rbufsize = ((char *)end - (char *)start); 993 sc->rblksize = blksize; 994 sc->rwmark = blksize; 995 996 nm_wr(sc, NM_RBUFFER_START, sc->rbuf, 4); 997 nm_wr(sc, NM_RBUFFER_END, sc->rbuf + sc->rbufsize, 4); 998 nm_wr(sc, NM_RBUFFER_CURRP, sc->rbuf, 4); 999 nm_wr(sc, NM_RBUFFER_WMARK, sc->rbuf + sc->rwmark, 4); 1000 nm_wr(sc, NM_RECORD_ENABLE_REG, NM_RECORD_FREERUN | 1001 NM_RECORD_ENABLE_FLAG, 1); 1002 1003 return (0); 1004 } 1005 1006 int 1007 neo_halt_output(addr) 1008 void *addr; 1009 { 1010 struct neo_softc *sc = (struct neo_softc *)addr; 1011 1012 nm_wr(sc, NM_PLAYBACK_ENABLE_REG, 0, 1); 1013 nm_wr(sc, NM_AUDIO_MUTE_REG, NM_AUDIO_MUTE_BOTH, 2); 1014 1015 sc->pintr = 0; 1016 1017 return (0); 1018 } 1019 1020 int 1021 neo_halt_input(addr) 1022 void *addr; 1023 { 1024 struct neo_softc *sc = (struct neo_softc *)addr; 1025 1026 nm_wr(sc, NM_RECORD_ENABLE_REG, 0, 1); 1027 1028 sc->rintr = 0; 1029 1030 return (0); 1031 } 1032 1033 int 1034 neo_getdev(addr, retp) 1035 void *addr; 1036 struct audio_device *retp; 1037 { 1038 *retp = neo_device; 1039 return (0); 1040 } 1041 1042 int 1043 neo_mixer_set_port(addr, cp) 1044 void *addr; 1045 mixer_ctrl_t *cp; 1046 { 1047 struct neo_softc *sc = addr; 1048 1049 return ((sc->codec_if->vtbl->mixer_set_port)(sc->codec_if, cp)); 1050 } 1051 1052 int 1053 neo_mixer_get_port(addr, cp) 1054 void *addr; 1055 mixer_ctrl_t *cp; 1056 { 1057 struct neo_softc *sc = addr; 1058 1059 return ((sc->codec_if->vtbl->mixer_get_port)(sc->codec_if, cp)); 1060 } 1061 1062 int 1063 neo_query_devinfo(addr, dip) 1064 void *addr; 1065 mixer_devinfo_t *dip; 1066 { 1067 struct neo_softc *sc = addr; 1068 1069 return ((sc->codec_if->vtbl->query_devinfo)(sc->codec_if, dip)); 1070 } 1071 1072 void * 1073 neo_malloc(addr, direction, size, pool, flags) 1074 void *addr; 1075 int direction; 1076 size_t size; 1077 int pool, flags; 1078 { 1079 struct neo_softc *sc = addr; 1080 void *rv = 0; 1081 1082 switch (direction) { 1083 case AUMODE_PLAY: 1084 rv = (char *)sc->bufioh + sc->pbuf; 1085 break; 1086 case AUMODE_RECORD: 1087 rv = (char *)sc->bufioh + sc->rbuf; 1088 break; 1089 default: 1090 break; 1091 } 1092 1093 return (rv); 1094 } 1095 1096 void 1097 neo_free(addr, ptr, pool) 1098 void *addr; 1099 void *ptr; 1100 int pool; 1101 { 1102 return; 1103 } 1104 1105 size_t 1106 neo_round_buffersize(addr, direction, size) 1107 void *addr; 1108 int direction; 1109 size_t size; 1110 { 1111 return (NM_BUFFSIZE); 1112 } 1113 1114 1115 int 1116 neo_get_props(addr) 1117 void *addr; 1118 { 1119 1120 return (AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX); 1121 } 1122