neo.c revision 1.4.2.3
1 /* $NetBSD: neo.c,v 1.4.2.3 2000/12/08 09:12:32 bouyer Exp $ */ 2 3 /* 4 * Copyright (c) 1999 Cameron Grant <gandalf (at) 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, WHETHERIN 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 THEPOSSIBILITY 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 * OpenBSD: neo.c,v 1.4 2000/07/19 09:04:37 csapuntz Exp 32 */ 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <sys/malloc.h> 38 #include <sys/device.h> 39 40 #include <machine/bus.h> 41 42 #include <dev/pci/pcidevs.h> 43 #include <dev/pci/pcivar.h> 44 45 #include <dev/pci/neoreg.h> 46 #include <dev/pci/neo-coeff.h> 47 48 #include <sys/audioio.h> 49 #include <dev/audio_if.h> 50 #include <dev/mulaw.h> 51 #include <dev/auconv.h> 52 53 #include <dev/ic/ac97var.h> 54 55 56 /* -------------------------------------------------------------------- */ 57 /* 58 * As of 04/13/00, public documentation on the Neomagic 256 is not available. 59 * These comments were gleaned by looking at the driver carefully. 60 * 61 * The Neomagic 256 AV/ZX chips provide both video and audio capabilities 62 * on one chip. About 2-6 megabytes of memory are associated with 63 * the chip. Most of this goes to video frame buffers, but some is used for 64 * audio buffering 65 * 66 * Unlike most PCI audio chips, the Neomagic chip does not rely on DMA. 67 * Instead, the chip allows you to carve out two ring buffers out of its 68 * memory. However you carve this and how much you can carve seems to be 69 * voodoo. The algorithm is in nm_init. 70 * 71 * Most Neomagic audio chips use the AC-97 codec interface. However, there 72 * seem to be a select few chips 256AV chips that do not support AC-97. 73 * This driver does not support them but there are rumors that it 74 * mgiht work with wss isa drivers. This might require some playing around 75 * with your BIOS. 76 * 77 * The Neomagic 256 AV/ZX have 2 PCI I/O region descriptors. Both of 78 * them describe a memory region. The frame buffer is the first region 79 * and the register set is the secodn region. 80 * 81 * The register manipulation logic is taken from the Linux driver, 82 * which is in the public domain. 83 * 84 * The Neomagic is even nice enough to map the AC-97 codec registers into 85 * the register space to allow direct manipulation. Watch out, accessing 86 * AC-97 registers on the Neomagic requires great delicateness, otherwise 87 * the thing will hang the PCI bus, rendering your system frozen. 88 * 89 * For one, it seems the Neomagic status register that reports AC-97 90 * readiness should NOT be polled more often than once each 1ms. 91 * 92 * Also, writes to the AC-97 register space may take order 40us to 93 * complete. 94 * 95 * Unlike many sound engines, the Neomagic does not support (as fas as 96 * we know :) the notion of interrupting every n bytes transferred, 97 * unlike many DMA engines. Instead, it allows you to specify one 98 * location in each ring buffer (called the watermark). When the chip 99 * passes that location while playing, it signals an interrupt. 100 * 101 * The ring buffer size is currently 16k. That is about 100ms of audio 102 * at 44.1khz/stero/16 bit. However, to keep the buffer full, interrupts 103 * are generated more often than that, so 20-40 interrupts per second 104 * should not be unexpected. Increasing BUFFSIZE should help minimize 105 * of glitches due to drivers that spend to much time looping at high 106 * privelege levels as well as the impact of badly written audio 107 * interface clients. 108 * 109 * TO-DO list: 110 * Figure out interaction with video stuff (look at Xfree86 driver?) 111 * 112 * Figure out how to shrink that huge table neo-coeff.h 113 */ 114 115 #define NM_BUFFSIZE 16384 116 117 /* device private data */ 118 struct neo_softc { 119 struct device dev; 120 121 bus_space_tag_t bufiot; 122 bus_space_handle_t bufioh; 123 124 bus_space_tag_t regiot; 125 bus_space_handle_t regioh; 126 127 u_int32_t type; 128 void *ih; 129 130 void (*pintr)(void *); /* dma completion intr handler */ 131 void *parg; /* arg for intr() */ 132 133 void (*rintr)(void *); /* dma completion intr handler */ 134 void *rarg; /* arg for intr() */ 135 136 vaddr_t buf_vaddr; 137 vaddr_t rbuf_vaddr; 138 vaddr_t pbuf_vaddr; 139 int pbuf_allocated; 140 int rbuf_allocated; 141 142 bus_addr_t buf_pciaddr; 143 bus_addr_t rbuf_pciaddr; 144 bus_addr_t pbuf_pciaddr; 145 146 u_int32_t ac97_base, ac97_status, ac97_busy; 147 u_int32_t buftop, pbuf, rbuf, cbuf, acbuf; 148 u_int32_t playint, recint, misc1int, misc2int; 149 u_int32_t irsz, badintr; 150 151 u_int32_t pbufsize; 152 u_int32_t rbufsize; 153 154 u_int32_t pblksize; 155 u_int32_t rblksize; 156 157 u_int32_t pwmark; 158 u_int32_t rwmark; 159 160 struct ac97_codec_if *codec_if; 161 struct ac97_host_if host_if; 162 163 void *powerhook; 164 }; 165 166 /* -------------------------------------------------------------------- */ 167 168 /* 169 * prototypes 170 */ 171 172 static int nm_waitcd(struct neo_softc *sc); 173 static int nm_loadcoeff(struct neo_softc *sc, int dir, int num); 174 static int nm_init(struct neo_softc *); 175 176 int neo_match(struct device *, struct cfdata *, void *); 177 void neo_attach(struct device *, struct device *, void *); 178 int neo_intr(void *); 179 180 int neo_open(void *, int); 181 void neo_close(void *); 182 int neo_query_encoding(void *, struct audio_encoding *); 183 int neo_set_params(void *, int, int, struct audio_params *, 184 struct audio_params *); 185 int neo_round_blocksize(void *, int); 186 int neo_trigger_output(void *, void *, void *, int, void (*)(void *), 187 void *, struct audio_params *); 188 int neo_trigger_input(void *, void *, void *, int, void (*)(void *), 189 void *, struct audio_params *); 190 int neo_halt_output(void *); 191 int neo_halt_input(void *); 192 int neo_getdev(void *, struct audio_device *); 193 int neo_mixer_set_port(void *, mixer_ctrl_t *); 194 int neo_mixer_get_port(void *, mixer_ctrl_t *); 195 int neo_attach_codec(void *sc, struct ac97_codec_if *); 196 int neo_read_codec(void *sc, u_int8_t a, u_int16_t *d); 197 int neo_write_codec(void *sc, u_int8_t a, u_int16_t d); 198 void neo_reset_codec(void *sc); 199 enum ac97_host_flags neo_flags_codec(void *sc); 200 int neo_query_devinfo(void *, mixer_devinfo_t *); 201 void *neo_malloc(void *, int, size_t, int, int); 202 void neo_free(void *, void *, int); 203 size_t neo_round_buffersize(void *, int, size_t); 204 paddr_t neo_mappage(void *, void *, off_t, int); 205 int neo_get_props(void *); 206 void neo_set_mixer(struct neo_softc *sc, int a, int d); 207 void neo_power(int why, void *arg); 208 209 struct cfattach neo_ca = { 210 sizeof(struct neo_softc), neo_match, neo_attach 211 }; 212 213 struct audio_device neo_device = { 214 "NeoMagic 256", 215 "", 216 "neo" 217 }; 218 219 /* The actual rates supported by the card. */ 220 static const int samplerates[9] = { 221 8000, 222 11025, 223 16000, 224 22050, 225 24000, 226 32000, 227 44100, 228 48000, 229 99999999 230 }; 231 232 /* -------------------------------------------------------------------- */ 233 234 struct audio_hw_if neo_hw_if = { 235 neo_open, 236 neo_close, 237 NULL, /* drain */ 238 neo_query_encoding, 239 neo_set_params, 240 neo_round_blocksize, 241 NULL, /* commit_setting */ 242 NULL, /* init_output */ 243 NULL, /* init_input */ 244 NULL, /* start_output */ 245 NULL, /* start_input */ 246 neo_halt_output, 247 neo_halt_input, 248 NULL, /* speaker_ctl */ 249 neo_getdev, 250 NULL, /* getfd */ 251 neo_mixer_set_port, 252 neo_mixer_get_port, 253 neo_query_devinfo, 254 neo_malloc, 255 neo_free, 256 neo_round_buffersize, 257 neo_mappage, 258 neo_get_props, 259 neo_trigger_output, 260 neo_trigger_input, 261 }; 262 263 /* -------------------------------------------------------------------- */ 264 265 #define nm_rd_1(sc, regno) \ 266 bus_space_read_1((sc)->regiot, (sc)->regioh, (regno)) 267 268 #define nm_rd_2(sc, regno) \ 269 bus_space_read_2((sc)->regiot, (sc)->regioh, (regno)) 270 271 #define nm_rd_4(sc, regno) \ 272 bus_space_read_4((sc)->regiot, (sc)->regioh, (regno)) 273 274 #define nm_wr_1(sc, regno, val) \ 275 bus_space_write_1((sc)->regiot, (sc)->regioh, (regno), (val)) 276 277 #define nm_wr_2(sc, regno, val) \ 278 bus_space_write_2((sc)->regiot, (sc)->regioh, (regno), (val)) 279 280 #define nm_wr_4(sc, regno, val) \ 281 bus_space_write_4((sc)->regiot, (sc)->regioh, (regno), (val)) 282 283 #define nm_rdbuf_4(sc, regno) \ 284 bus_space_read_4((sc)->bufiot, (sc)->bufioh, (regno)) 285 286 #define nm_wrbuf_1(sc, regno, val) \ 287 bus_space_write_1((sc)->bufiot, (sc)->bufioh, (regno), (val)) 288 289 /* ac97 codec */ 290 static int 291 nm_waitcd(struct neo_softc *sc) 292 { 293 int cnt = 10; 294 int fail = 1; 295 296 while (cnt-- > 0) { 297 if (nm_rd_2(sc, sc->ac97_status) & sc->ac97_busy) 298 DELAY(100); 299 else { 300 fail = 0; 301 break; 302 } 303 } 304 return (fail); 305 } 306 307 308 static void 309 nm_ackint(struct neo_softc *sc, u_int32_t num) 310 { 311 312 switch (sc->type) { 313 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 314 nm_wr_2(sc, NM_INT_REG, num << 1); 315 break; 316 317 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 318 nm_wr_4(sc, NM_INT_REG, num); 319 break; 320 } 321 } 322 323 static int 324 nm_loadcoeff(struct neo_softc *sc, int dir, int num) 325 { 326 int ofs, sz, i; 327 u_int32_t addr; 328 329 addr = (dir == AUMODE_PLAY)? 0x01c : 0x21c; 330 if (dir == AUMODE_RECORD) 331 num += 8; 332 sz = coefficientSizes[num]; 333 ofs = 0; 334 while (num-- > 0) 335 ofs+= coefficientSizes[num]; 336 for (i = 0; i < sz; i++) 337 nm_wrbuf_1(sc, sc->cbuf + i, coefficients[ofs + i]); 338 nm_wr_4(sc, addr, sc->cbuf); 339 if (dir == AUMODE_PLAY) 340 sz--; 341 nm_wr_4(sc, addr + 4, sc->cbuf + sz); 342 return 0; 343 } 344 345 /* The interrupt handler */ 346 int 347 neo_intr(void *p) 348 { 349 struct neo_softc *sc = (struct neo_softc *)p; 350 int status, x, active; 351 int rv = 0; 352 353 active = (sc->pintr || sc->rintr); 354 status = (sc->irsz == 2) ? 355 nm_rd_2(sc, NM_INT_REG) : 356 nm_rd_4(sc, NM_INT_REG); 357 358 if (status & sc->playint) { 359 status &= ~sc->playint; 360 361 sc->pwmark += sc->pblksize; 362 sc->pwmark %= sc->pbufsize; 363 364 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark); 365 366 nm_ackint(sc, sc->playint); 367 368 if (sc->pintr) 369 (*sc->pintr)(sc->parg); 370 371 rv = 1; 372 } 373 if (status & sc->recint) { 374 status &= ~sc->recint; 375 376 sc->rwmark += sc->rblksize; 377 sc->rwmark %= sc->rbufsize; 378 379 nm_ackint(sc, sc->recint); 380 if (sc->rintr) 381 (*sc->rintr)(sc->rarg); 382 383 rv = 1; 384 } 385 if (status & sc->misc1int) { 386 status &= ~sc->misc1int; 387 nm_ackint(sc, sc->misc1int); 388 x = nm_rd_1(sc, 0x400); 389 nm_wr_1(sc, 0x400, x | 2); 390 printf("%s: misc int 1\n", sc->dev.dv_xname); 391 rv = 1; 392 } 393 if (status & sc->misc2int) { 394 status &= ~sc->misc2int; 395 nm_ackint(sc, sc->misc2int); 396 x = nm_rd_1(sc, 0x400); 397 nm_wr_1(sc, 0x400, x & ~2); 398 printf("%s: misc int 2\n", sc->dev.dv_xname); 399 rv = 1; 400 } 401 if (status) { 402 status &= ~sc->misc2int; 403 nm_ackint(sc, sc->misc2int); 404 printf("%s: unknown int\n", sc->dev.dv_xname); 405 rv = 1; 406 } 407 408 return (rv); 409 } 410 411 /* -------------------------------------------------------------------- */ 412 413 /* 414 * Probe and attach the card 415 */ 416 417 static int 418 nm_init(struct neo_softc *sc) 419 { 420 u_int32_t ofs, i; 421 422 switch (sc->type) { 423 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 424 sc->ac97_base = NM_MIXER_OFFSET; 425 sc->ac97_status = NM_MIXER_STATUS_OFFSET; 426 sc->ac97_busy = NM_MIXER_READY_MASK; 427 428 sc->buftop = 2560 * 1024; 429 430 sc->irsz = 2; 431 sc->playint = NM_PLAYBACK_INT; 432 sc->recint = NM_RECORD_INT; 433 sc->misc1int = NM_MISC_INT_1; 434 sc->misc2int = NM_MISC_INT_2; 435 break; 436 437 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 438 sc->ac97_base = NM_MIXER_OFFSET; 439 sc->ac97_status = NM2_MIXER_STATUS_OFFSET; 440 sc->ac97_busy = NM2_MIXER_READY_MASK; 441 442 sc->buftop = (nm_rd_2(sc, 0xa0b) ? 6144 : 4096) * 1024; 443 444 sc->irsz = 4; 445 sc->playint = NM2_PLAYBACK_INT; 446 sc->recint = NM2_RECORD_INT; 447 sc->misc1int = NM2_MISC_INT_1; 448 sc->misc2int = NM2_MISC_INT_2; 449 break; 450 #ifdef DIAGNOSTIC 451 default: 452 panic("nm_init: impossible"); 453 #endif 454 } 455 456 sc->badintr = 0; 457 ofs = sc->buftop - 0x0400; 458 sc->buftop -= 0x1400; 459 460 if ((nm_rdbuf_4(sc, ofs) & NM_SIG_MASK) == NM_SIGNATURE) { 461 i = nm_rdbuf_4(sc, ofs + 4); 462 if (i != 0 && i != 0xffffffff) 463 sc->buftop = i; 464 } 465 466 sc->cbuf = sc->buftop - NM_MAX_COEFFICIENT; 467 sc->rbuf = sc->cbuf - NM_BUFFSIZE; 468 sc->pbuf = sc->rbuf - NM_BUFFSIZE; 469 sc->acbuf = sc->pbuf - (NM_TOTAL_COEFF_COUNT * 4); 470 471 sc->buf_vaddr = (vaddr_t) bus_space_vaddr(sc->bufiot, sc->bufioh); 472 sc->rbuf_vaddr = sc->buf_vaddr + sc->rbuf; 473 sc->pbuf_vaddr = sc->buf_vaddr + sc->pbuf; 474 475 sc->rbuf_pciaddr = sc->buf_pciaddr + sc->rbuf; 476 sc->pbuf_pciaddr = sc->buf_pciaddr + sc->pbuf; 477 478 nm_wr_1(sc, 0, 0x11); 479 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0); 480 nm_wr_2(sc, 0x214, 0); 481 482 return 0; 483 } 484 485 int 486 neo_match(struct device *parent, struct cfdata *match, void *aux) 487 { 488 struct pci_attach_args *pa = aux; 489 pcireg_t subdev; 490 491 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_NEOMAGIC) 492 return (0); 493 494 subdev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 495 496 switch (PCI_PRODUCT(pa->pa_id)) { 497 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 498 /* 499 * We have to weed-out the non-AC'97 versions of 500 * the chip (i.e. the ones that are known to work 501 * in WSS emulation mode), as they won't work with 502 * this driver. 503 */ 504 switch (PCI_VENDOR(subdev)) { 505 case PCI_VENDOR_DELL: 506 switch (PCI_PRODUCT(subdev)) { 507 case 0x008f: 508 return (0); 509 } 510 break; 511 512 case PCI_VENDOR_HP: 513 switch (PCI_PRODUCT(subdev)) { 514 case 0x0007: 515 return (0); 516 } 517 } 518 return (1); 519 520 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 521 return (1); 522 } 523 524 return (0); 525 } 526 527 void 528 neo_power(int why, void *addr) 529 { 530 struct neo_softc *sc = (struct neo_softc *)addr; 531 532 if (why == PWR_RESUME) { 533 nm_init(sc); 534 (sc->codec_if->vtbl->restore_ports)(sc->codec_if); 535 } 536 } 537 538 void 539 neo_attach(struct device *parent, struct device *self, void *aux) 540 { 541 struct neo_softc *sc = (struct neo_softc *)self; 542 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 543 pci_chipset_tag_t pc = pa->pa_pc; 544 char const *intrstr; 545 pci_intr_handle_t ih; 546 pcireg_t csr; 547 int error; 548 549 sc->type = PCI_PRODUCT(pa->pa_id); 550 551 printf(": NeoMagic 256%s audio\n", 552 sc->type == PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU ? "AV" : "ZX"); 553 554 /* Map I/O register */ 555 if (pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_MEM, 0, 556 &sc->bufiot, &sc->bufioh, &sc->buf_pciaddr, NULL)) { 557 printf("%s: can't map buffer\n", sc->dev.dv_xname); 558 return; 559 } 560 561 if (pci_mapreg_map(pa, PCI_MAPREG_START + 4, PCI_MAPREG_TYPE_MEM, 0, 562 &sc->regiot, &sc->regioh, NULL, NULL)) { 563 printf("%s: can't map registers\n", sc->dev.dv_xname); 564 return; 565 } 566 567 /* Map and establish the interrupt. */ 568 if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, 569 pa->pa_intrline, &ih)) { 570 printf("%s: couldn't map interrupt\n", sc->dev.dv_xname); 571 return; 572 } 573 574 intrstr = pci_intr_string(pc, ih); 575 sc->ih = pci_intr_establish(pc, ih, IPL_AUDIO, neo_intr, sc); 576 577 if (sc->ih == NULL) { 578 printf("%s: couldn't establish interrupt", 579 sc->dev.dv_xname); 580 if (intrstr != NULL) 581 printf(" at %s", intrstr); 582 printf("\n"); 583 return; 584 } 585 printf("%s: interruping at %s\n", sc->dev.dv_xname, intrstr); 586 587 if ((error = nm_init(sc)) != 0) 588 return; 589 590 /* Enable the device. */ 591 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 592 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 593 csr | PCI_COMMAND_MASTER_ENABLE); 594 595 sc->host_if.arg = sc; 596 597 sc->host_if.attach = neo_attach_codec; 598 sc->host_if.read = neo_read_codec; 599 sc->host_if.write = neo_write_codec; 600 sc->host_if.reset = neo_reset_codec; 601 sc->host_if.flags = neo_flags_codec; 602 603 if ((error = ac97_attach(&sc->host_if)) != 0) 604 return; 605 606 sc->powerhook = powerhook_establish(neo_power, sc); 607 608 audio_attach_mi(&neo_hw_if, sc, &sc->dev); 609 } 610 611 int 612 neo_read_codec(void *v, u_int8_t a, u_int16_t *d) 613 { 614 struct neo_softc *sc = v; 615 616 if (!nm_waitcd(sc)) { 617 *d = nm_rd_2(sc, sc->ac97_base + a); 618 DELAY(1000); 619 return 0; 620 } 621 622 return (ENXIO); 623 } 624 625 626 int 627 neo_write_codec(void *v, u_int8_t a, u_int16_t d) 628 { 629 struct neo_softc *sc = v; 630 int cnt = 3; 631 632 if (!nm_waitcd(sc)) { 633 while (cnt-- > 0) { 634 nm_wr_2(sc, sc->ac97_base + a, d); 635 if (!nm_waitcd(sc)) { 636 DELAY(1000); 637 return (0); 638 } 639 } 640 } 641 642 return (ENXIO); 643 } 644 645 int 646 neo_attach_codec(void *v, struct ac97_codec_if *codec_if) 647 { 648 struct neo_softc *sc = v; 649 650 sc->codec_if = codec_if; 651 return (0); 652 } 653 654 void 655 neo_reset_codec(void *v) 656 { 657 struct neo_softc *sc = v; 658 659 nm_wr_1(sc, 0x6c0, 0x01); 660 nm_wr_1(sc, 0x6cc, 0x87); 661 nm_wr_1(sc, 0x6cc, 0x80); 662 nm_wr_1(sc, 0x6cc, 0x00); 663 } 664 665 enum ac97_host_flags 666 neo_flags_codec(void *v) 667 { 668 669 return (AC97_HOST_DONT_READ); 670 } 671 672 int 673 neo_open(void *addr, int flags) 674 { 675 676 return (0); 677 } 678 679 /* 680 * Close function is called at splaudio(). 681 */ 682 void 683 neo_close(void *addr) 684 { 685 struct neo_softc *sc = addr; 686 687 neo_halt_output(sc); 688 neo_halt_input(sc); 689 690 sc->pintr = 0; 691 sc->rintr = 0; 692 } 693 694 int 695 neo_query_encoding(void *addr, struct audio_encoding *fp) 696 { 697 698 switch (fp->index) { 699 case 0: 700 strcpy(fp->name, AudioEulinear); 701 fp->encoding = AUDIO_ENCODING_ULINEAR; 702 fp->precision = 8; 703 fp->flags = 0; 704 return (0); 705 case 1: 706 strcpy(fp->name, AudioEmulaw); 707 fp->encoding = AUDIO_ENCODING_ULAW; 708 fp->precision = 8; 709 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 710 return (0); 711 case 2: 712 strcpy(fp->name, AudioEalaw); 713 fp->encoding = AUDIO_ENCODING_ALAW; 714 fp->precision = 8; 715 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 716 return (0); 717 case 3: 718 strcpy(fp->name, AudioEslinear); 719 fp->encoding = AUDIO_ENCODING_SLINEAR; 720 fp->precision = 8; 721 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 722 return (0); 723 case 4: 724 strcpy(fp->name, AudioEslinear_le); 725 fp->encoding = AUDIO_ENCODING_SLINEAR_LE; 726 fp->precision = 16; 727 fp->flags = 0; 728 return (0); 729 case 5: 730 strcpy(fp->name, AudioEulinear_le); 731 fp->encoding = AUDIO_ENCODING_ULINEAR_LE; 732 fp->precision = 16; 733 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 734 return (0); 735 case 6: 736 strcpy(fp->name, AudioEslinear_be); 737 fp->encoding = AUDIO_ENCODING_SLINEAR_BE; 738 fp->precision = 16; 739 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 740 return (0); 741 case 7: 742 strcpy(fp->name, AudioEulinear_be); 743 fp->encoding = AUDIO_ENCODING_ULINEAR_BE; 744 fp->precision = 16; 745 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 746 return (0); 747 default: 748 return (EINVAL); 749 } 750 } 751 752 /* Todo: don't commit settings to card until we've verified all parameters */ 753 int 754 neo_set_params(void *addr, int setmode, int usemode, struct audio_params *play, 755 struct audio_params *rec) 756 { 757 struct neo_softc *sc = addr; 758 u_int32_t base; 759 u_int8_t x; 760 int mode; 761 struct audio_params *p; 762 763 for (mode = AUMODE_RECORD; mode != -1; 764 mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) { 765 if ((setmode & mode) == 0) 766 continue; 767 768 p = mode == AUMODE_PLAY ? play : rec; 769 770 if (p == NULL) continue; 771 772 for (x = 0; x < 8; x++) { 773 if (p->sample_rate < 774 (samplerates[x] + samplerates[x + 1]) / 2) 775 break; 776 } 777 if (x == 8) 778 return (EINVAL); 779 780 p->sample_rate = samplerates[x]; 781 nm_loadcoeff(sc, mode, x); 782 783 x <<= 4; 784 x &= NM_RATE_MASK; 785 if (p->precision == 16) 786 x |= NM_RATE_BITS_16; 787 if (p->channels == 2) 788 x |= NM_RATE_STEREO; 789 790 base = (mode == AUMODE_PLAY)? 791 NM_PLAYBACK_REG_OFFSET : NM_RECORD_REG_OFFSET; 792 nm_wr_1(sc, base + NM_RATE_REG_OFFSET, x); 793 794 p->factor = 1; 795 p->sw_code = 0; 796 switch (p->encoding) { 797 case AUDIO_ENCODING_SLINEAR_BE: 798 if (p->precision == 16) 799 p->sw_code = swap_bytes; 800 else 801 p->sw_code = change_sign8; 802 break; 803 case AUDIO_ENCODING_SLINEAR_LE: 804 if (p->precision != 16) 805 p->sw_code = change_sign8; 806 break; 807 case AUDIO_ENCODING_ULINEAR_BE: 808 if (p->precision == 16) { 809 if (mode == AUMODE_PLAY) 810 p->sw_code = 811 swap_bytes_change_sign16_le; 812 else 813 p->sw_code = 814 change_sign16_swap_bytes_le; 815 } 816 break; 817 case AUDIO_ENCODING_ULINEAR_LE: 818 if (p->precision == 16) 819 p->sw_code = change_sign16_le; 820 break; 821 case AUDIO_ENCODING_ULAW: 822 if (mode == AUMODE_PLAY) { 823 p->factor = 2; 824 p->sw_code = mulaw_to_slinear16_le; 825 } else 826 p->sw_code = ulinear8_to_mulaw; 827 break; 828 case AUDIO_ENCODING_ALAW: 829 if (mode == AUMODE_PLAY) { 830 p->factor = 2; 831 p->sw_code = alaw_to_slinear16_le; 832 } else 833 p->sw_code = ulinear8_to_alaw; 834 break; 835 default: 836 return (EINVAL); 837 } 838 } 839 840 841 return (0); 842 } 843 844 int 845 neo_round_blocksize(void *addr, int blk) 846 { 847 848 return (NM_BUFFSIZE / 2); 849 } 850 851 int 852 neo_trigger_output(void *addr, void *start, void *end, int blksize, 853 void (*intr)(void *), void *arg, struct audio_params *param) 854 { 855 struct neo_softc *sc = addr; 856 int ssz; 857 858 sc->pintr = intr; 859 sc->parg = arg; 860 861 ssz = (param->precision * param->factor == 16) ? 2 : 1; 862 if (param->channels == 2) 863 ssz <<= 1; 864 865 sc->pbufsize = ((char*)end - (char *)start); 866 sc->pblksize = blksize; 867 sc->pwmark = blksize; 868 869 nm_wr_4(sc, NM_PBUFFER_START, sc->pbuf); 870 nm_wr_4(sc, NM_PBUFFER_END, sc->pbuf + sc->pbufsize - ssz); 871 nm_wr_4(sc, NM_PBUFFER_CURRP, sc->pbuf); 872 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark); 873 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, NM_PLAYBACK_FREERUN | 874 NM_PLAYBACK_ENABLE_FLAG); 875 nm_wr_2(sc, NM_AUDIO_MUTE_REG, 0); 876 877 return (0); 878 } 879 880 int 881 neo_trigger_input(void *addr, void *start, void *end, int blksize, 882 void (*intr)(void *), void *arg, struct audio_params *param) 883 { 884 struct neo_softc *sc = addr; 885 int ssz; 886 887 sc->rintr = intr; 888 sc->rarg = arg; 889 890 ssz = (param->precision * param->factor == 16) ? 2 : 1; 891 if (param->channels == 2) 892 ssz <<= 1; 893 894 sc->rbufsize = ((char*)end - (char *)start); 895 sc->rblksize = blksize; 896 sc->rwmark = blksize; 897 898 nm_wr_4(sc, NM_RBUFFER_START, sc->rbuf); 899 nm_wr_4(sc, NM_RBUFFER_END, sc->rbuf + sc->rbufsize); 900 nm_wr_4(sc, NM_RBUFFER_CURRP, sc->rbuf); 901 nm_wr_4(sc, NM_RBUFFER_WMARK, sc->rbuf + sc->rwmark); 902 nm_wr_1(sc, NM_RECORD_ENABLE_REG, NM_RECORD_FREERUN | 903 NM_RECORD_ENABLE_FLAG); 904 905 return (0); 906 } 907 908 int 909 neo_halt_output(void *addr) 910 { 911 struct neo_softc *sc = (struct neo_softc *)addr; 912 913 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, 0); 914 nm_wr_2(sc, NM_AUDIO_MUTE_REG, NM_AUDIO_MUTE_BOTH); 915 916 return (0); 917 } 918 919 int 920 neo_halt_input(void *addr) 921 { 922 struct neo_softc *sc = (struct neo_softc *)addr; 923 924 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0); 925 926 return (0); 927 } 928 929 int 930 neo_getdev(void *addr, struct audio_device *retp) 931 { 932 933 *retp = neo_device; 934 return (0); 935 } 936 937 int 938 neo_mixer_set_port(void *addr, mixer_ctrl_t *cp) 939 { 940 struct neo_softc *sc = addr; 941 942 return ((sc->codec_if->vtbl->mixer_set_port)(sc->codec_if, cp)); 943 } 944 945 int 946 neo_mixer_get_port(void *addr, mixer_ctrl_t *cp) 947 { 948 struct neo_softc *sc = addr; 949 950 return ((sc->codec_if->vtbl->mixer_get_port)(sc->codec_if, cp)); 951 } 952 953 int 954 neo_query_devinfo(void *addr, mixer_devinfo_t *dip) 955 { 956 struct neo_softc *sc = addr; 957 958 return ((sc->codec_if->vtbl->query_devinfo)(sc->codec_if, dip)); 959 } 960 961 void * 962 neo_malloc(void *addr, int direction, size_t size, int pool, int flags) 963 { 964 struct neo_softc *sc = addr; 965 void *rv = NULL; 966 967 switch (direction) { 968 case AUMODE_PLAY: 969 if (sc->pbuf_allocated == 0) { 970 rv = (void *) sc->pbuf_vaddr; 971 sc->pbuf_allocated = 1; 972 } 973 break; 974 975 case AUMODE_RECORD: 976 if (sc->rbuf_allocated == 0) { 977 rv = (void *) sc->rbuf_vaddr; 978 sc->rbuf_allocated = 1; 979 } 980 break; 981 } 982 983 return (rv); 984 } 985 986 void 987 neo_free(void *addr, void *ptr, int pool) 988 { 989 struct neo_softc *sc = addr; 990 vaddr_t v = (vaddr_t) ptr; 991 992 if (v == sc->pbuf_vaddr) 993 sc->pbuf_allocated = 0; 994 else if (v == sc->rbuf_vaddr) 995 sc->rbuf_allocated = 0; 996 else 997 printf("neo_free: bad address %p\n", ptr); 998 } 999 1000 size_t 1001 neo_round_buffersize(void *addr, int direction, size_t size) 1002 { 1003 1004 return (NM_BUFFSIZE); 1005 } 1006 1007 paddr_t 1008 neo_mappage(void *addr, void *mem, off_t off, int prot) 1009 { 1010 struct neo_softc *sc = addr; 1011 vaddr_t v = (vaddr_t) mem; 1012 bus_addr_t pciaddr; 1013 1014 /* XXX Need new mapping code. */ 1015 1016 if (v == sc->pbuf_vaddr) 1017 pciaddr = sc->pbuf_pciaddr; 1018 else if (v == sc->rbuf_vaddr) 1019 pciaddr = sc->rbuf_pciaddr; 1020 else 1021 return (-1); 1022 1023 #ifdef __i386__ 1024 return (i386_btop(pciaddr + off)); 1025 #else 1026 return (-1); 1027 #endif 1028 } 1029 1030 int 1031 neo_get_props(void *addr) 1032 { 1033 1034 return (AUDIO_PROP_INDEPENDENT | AUDIO_PROP_MMAP | 1035 AUDIO_PROP_FULLDUPLEX); 1036 } 1037
Indexes created Thu Oct 02 10:09:58 GMT 2025