neo.c revision 1.10
1 /* $NetBSD: neo.c,v 1.10 2001/10/03 00:04:52 augustss 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 NULL, 262 }; 263 264 /* -------------------------------------------------------------------- */ 265 266 #define nm_rd_1(sc, regno) \ 267 bus_space_read_1((sc)->regiot, (sc)->regioh, (regno)) 268 269 #define nm_rd_2(sc, regno) \ 270 bus_space_read_2((sc)->regiot, (sc)->regioh, (regno)) 271 272 #define nm_rd_4(sc, regno) \ 273 bus_space_read_4((sc)->regiot, (sc)->regioh, (regno)) 274 275 #define nm_wr_1(sc, regno, val) \ 276 bus_space_write_1((sc)->regiot, (sc)->regioh, (regno), (val)) 277 278 #define nm_wr_2(sc, regno, val) \ 279 bus_space_write_2((sc)->regiot, (sc)->regioh, (regno), (val)) 280 281 #define nm_wr_4(sc, regno, val) \ 282 bus_space_write_4((sc)->regiot, (sc)->regioh, (regno), (val)) 283 284 #define nm_rdbuf_4(sc, regno) \ 285 bus_space_read_4((sc)->bufiot, (sc)->bufioh, (regno)) 286 287 #define nm_wrbuf_1(sc, regno, val) \ 288 bus_space_write_1((sc)->bufiot, (sc)->bufioh, (regno), (val)) 289 290 /* ac97 codec */ 291 static int 292 nm_waitcd(struct neo_softc *sc) 293 { 294 int cnt = 10; 295 int fail = 1; 296 297 while (cnt-- > 0) { 298 if (nm_rd_2(sc, sc->ac97_status) & sc->ac97_busy) 299 DELAY(100); 300 else { 301 fail = 0; 302 break; 303 } 304 } 305 return (fail); 306 } 307 308 309 static void 310 nm_ackint(struct neo_softc *sc, u_int32_t num) 311 { 312 313 switch (sc->type) { 314 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 315 nm_wr_2(sc, NM_INT_REG, num << 1); 316 break; 317 318 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 319 nm_wr_4(sc, NM_INT_REG, num); 320 break; 321 } 322 } 323 324 static int 325 nm_loadcoeff(struct neo_softc *sc, int dir, int num) 326 { 327 int ofs, sz, i; 328 u_int32_t addr; 329 330 addr = (dir == AUMODE_PLAY)? 0x01c : 0x21c; 331 if (dir == AUMODE_RECORD) 332 num += 8; 333 sz = coefficientSizes[num]; 334 ofs = 0; 335 while (num-- > 0) 336 ofs+= coefficientSizes[num]; 337 for (i = 0; i < sz; i++) 338 nm_wrbuf_1(sc, sc->cbuf + i, coefficients[ofs + i]); 339 nm_wr_4(sc, addr, sc->cbuf); 340 if (dir == AUMODE_PLAY) 341 sz--; 342 nm_wr_4(sc, addr + 4, sc->cbuf + sz); 343 return 0; 344 } 345 346 /* The interrupt handler */ 347 int 348 neo_intr(void *p) 349 { 350 struct neo_softc *sc = (struct neo_softc *)p; 351 int status, x, active; 352 int rv = 0; 353 354 active = (sc->pintr || sc->rintr); 355 status = (sc->irsz == 2) ? 356 nm_rd_2(sc, NM_INT_REG) : 357 nm_rd_4(sc, NM_INT_REG); 358 359 if (status & sc->playint) { 360 status &= ~sc->playint; 361 362 sc->pwmark += sc->pblksize; 363 sc->pwmark %= sc->pbufsize; 364 365 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark); 366 367 nm_ackint(sc, sc->playint); 368 369 if (sc->pintr) 370 (*sc->pintr)(sc->parg); 371 372 rv = 1; 373 } 374 if (status & sc->recint) { 375 status &= ~sc->recint; 376 377 sc->rwmark += sc->rblksize; 378 sc->rwmark %= sc->rbufsize; 379 380 nm_ackint(sc, sc->recint); 381 if (sc->rintr) 382 (*sc->rintr)(sc->rarg); 383 384 rv = 1; 385 } 386 if (status & sc->misc1int) { 387 status &= ~sc->misc1int; 388 nm_ackint(sc, sc->misc1int); 389 x = nm_rd_1(sc, 0x400); 390 nm_wr_1(sc, 0x400, x | 2); 391 printf("%s: misc int 1\n", sc->dev.dv_xname); 392 rv = 1; 393 } 394 if (status & sc->misc2int) { 395 status &= ~sc->misc2int; 396 nm_ackint(sc, sc->misc2int); 397 x = nm_rd_1(sc, 0x400); 398 nm_wr_1(sc, 0x400, x & ~2); 399 printf("%s: misc int 2\n", sc->dev.dv_xname); 400 rv = 1; 401 } 402 if (status) { 403 status &= ~sc->misc2int; 404 nm_ackint(sc, sc->misc2int); 405 printf("%s: unknown int\n", sc->dev.dv_xname); 406 rv = 1; 407 } 408 409 return (rv); 410 } 411 412 /* -------------------------------------------------------------------- */ 413 414 /* 415 * Probe and attach the card 416 */ 417 418 static int 419 nm_init(struct neo_softc *sc) 420 { 421 u_int32_t ofs, i; 422 423 switch (sc->type) { 424 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 425 sc->ac97_base = NM_MIXER_OFFSET; 426 sc->ac97_status = NM_MIXER_STATUS_OFFSET; 427 sc->ac97_busy = NM_MIXER_READY_MASK; 428 429 sc->buftop = 2560 * 1024; 430 431 sc->irsz = 2; 432 sc->playint = NM_PLAYBACK_INT; 433 sc->recint = NM_RECORD_INT; 434 sc->misc1int = NM_MISC_INT_1; 435 sc->misc2int = NM_MISC_INT_2; 436 break; 437 438 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 439 sc->ac97_base = NM_MIXER_OFFSET; 440 sc->ac97_status = NM2_MIXER_STATUS_OFFSET; 441 sc->ac97_busy = NM2_MIXER_READY_MASK; 442 443 sc->buftop = (nm_rd_2(sc, 0xa0b) ? 6144 : 4096) * 1024; 444 445 sc->irsz = 4; 446 sc->playint = NM2_PLAYBACK_INT; 447 sc->recint = NM2_RECORD_INT; 448 sc->misc1int = NM2_MISC_INT_1; 449 sc->misc2int = NM2_MISC_INT_2; 450 break; 451 #ifdef DIAGNOSTIC 452 default: 453 panic("nm_init: impossible"); 454 #endif 455 } 456 457 sc->badintr = 0; 458 ofs = sc->buftop - 0x0400; 459 sc->buftop -= 0x1400; 460 461 if ((nm_rdbuf_4(sc, ofs) & NM_SIG_MASK) == NM_SIGNATURE) { 462 i = nm_rdbuf_4(sc, ofs + 4); 463 if (i != 0 && i != 0xffffffff) 464 sc->buftop = i; 465 } 466 467 sc->cbuf = sc->buftop - NM_MAX_COEFFICIENT; 468 sc->rbuf = sc->cbuf - NM_BUFFSIZE; 469 sc->pbuf = sc->rbuf - NM_BUFFSIZE; 470 sc->acbuf = sc->pbuf - (NM_TOTAL_COEFF_COUNT * 4); 471 472 sc->buf_vaddr = (vaddr_t) bus_space_vaddr(sc->bufiot, sc->bufioh); 473 sc->rbuf_vaddr = sc->buf_vaddr + sc->rbuf; 474 sc->pbuf_vaddr = sc->buf_vaddr + sc->pbuf; 475 476 sc->rbuf_pciaddr = sc->buf_pciaddr + sc->rbuf; 477 sc->pbuf_pciaddr = sc->buf_pciaddr + sc->pbuf; 478 479 nm_wr_1(sc, 0, 0x11); 480 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0); 481 nm_wr_2(sc, 0x214, 0); 482 483 return 0; 484 } 485 486 int 487 neo_match(struct device *parent, struct cfdata *match, void *aux) 488 { 489 struct pci_attach_args *pa = aux; 490 pcireg_t subdev; 491 492 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_NEOMAGIC) 493 return (0); 494 495 subdev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 496 497 switch (PCI_PRODUCT(pa->pa_id)) { 498 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 499 /* 500 * We have to weed-out the non-AC'97 versions of 501 * the chip (i.e. the ones that are known to work 502 * in WSS emulation mode), as they won't work with 503 * this driver. 504 */ 505 switch (PCI_VENDOR(subdev)) { 506 case PCI_VENDOR_DELL: 507 switch (PCI_PRODUCT(subdev)) { 508 case 0x008f: 509 return (0); 510 } 511 break; 512 513 case PCI_VENDOR_HP: 514 switch (PCI_PRODUCT(subdev)) { 515 case 0x0007: 516 return (0); 517 } 518 break; 519 520 case PCI_VENDOR_IBM: 521 switch (PCI_PRODUCT(subdev)) { 522 case 0x00dd: 523 return (0); 524 } 525 break; 526 } 527 return (1); 528 529 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 530 return (1); 531 } 532 533 return (0); 534 } 535 536 void 537 neo_power(int why, void *addr) 538 { 539 struct neo_softc *sc = (struct neo_softc *)addr; 540 541 if (why == PWR_RESUME) { 542 nm_init(sc); 543 (sc->codec_if->vtbl->restore_ports)(sc->codec_if); 544 } 545 } 546 547 void 548 neo_attach(struct device *parent, struct device *self, void *aux) 549 { 550 struct neo_softc *sc = (struct neo_softc *)self; 551 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 552 pci_chipset_tag_t pc = pa->pa_pc; 553 char const *intrstr; 554 pci_intr_handle_t ih; 555 pcireg_t csr; 556 int error; 557 558 sc->type = PCI_PRODUCT(pa->pa_id); 559 560 printf(": NeoMagic 256%s audio\n", 561 sc->type == PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU ? "AV" : "ZX"); 562 563 /* Map I/O register */ 564 if (pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_MEM, 0, 565 &sc->bufiot, &sc->bufioh, &sc->buf_pciaddr, NULL)) { 566 printf("%s: can't map buffer\n", sc->dev.dv_xname); 567 return; 568 } 569 570 if (pci_mapreg_map(pa, PCI_MAPREG_START + 4, PCI_MAPREG_TYPE_MEM, 0, 571 &sc->regiot, &sc->regioh, NULL, NULL)) { 572 printf("%s: can't map registers\n", sc->dev.dv_xname); 573 return; 574 } 575 576 /* Map and establish the interrupt. */ 577 if (pci_intr_map(pa, &ih)) { 578 printf("%s: couldn't map interrupt\n", sc->dev.dv_xname); 579 return; 580 } 581 582 intrstr = pci_intr_string(pc, ih); 583 sc->ih = pci_intr_establish(pc, ih, IPL_AUDIO, neo_intr, sc); 584 585 if (sc->ih == NULL) { 586 printf("%s: couldn't establish interrupt", 587 sc->dev.dv_xname); 588 if (intrstr != NULL) 589 printf(" at %s", intrstr); 590 printf("\n"); 591 return; 592 } 593 printf("%s: interruping at %s\n", sc->dev.dv_xname, intrstr); 594 595 if ((error = nm_init(sc)) != 0) 596 return; 597 598 /* Enable the device. */ 599 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 600 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 601 csr | PCI_COMMAND_MASTER_ENABLE); 602 603 sc->host_if.arg = sc; 604 605 sc->host_if.attach = neo_attach_codec; 606 sc->host_if.read = neo_read_codec; 607 sc->host_if.write = neo_write_codec; 608 sc->host_if.reset = neo_reset_codec; 609 sc->host_if.flags = neo_flags_codec; 610 611 if ((error = ac97_attach(&sc->host_if)) != 0) 612 return; 613 614 sc->powerhook = powerhook_establish(neo_power, sc); 615 616 audio_attach_mi(&neo_hw_if, sc, &sc->dev); 617 } 618 619 int 620 neo_read_codec(void *v, u_int8_t a, u_int16_t *d) 621 { 622 struct neo_softc *sc = v; 623 624 if (!nm_waitcd(sc)) { 625 *d = nm_rd_2(sc, sc->ac97_base + a); 626 DELAY(1000); 627 return 0; 628 } 629 630 return (ENXIO); 631 } 632 633 634 int 635 neo_write_codec(void *v, u_int8_t a, u_int16_t d) 636 { 637 struct neo_softc *sc = v; 638 int cnt = 3; 639 640 if (!nm_waitcd(sc)) { 641 while (cnt-- > 0) { 642 nm_wr_2(sc, sc->ac97_base + a, d); 643 if (!nm_waitcd(sc)) { 644 DELAY(1000); 645 return (0); 646 } 647 } 648 } 649 650 return (ENXIO); 651 } 652 653 int 654 neo_attach_codec(void *v, struct ac97_codec_if *codec_if) 655 { 656 struct neo_softc *sc = v; 657 658 sc->codec_if = codec_if; 659 return (0); 660 } 661 662 void 663 neo_reset_codec(void *v) 664 { 665 struct neo_softc *sc = v; 666 667 nm_wr_1(sc, 0x6c0, 0x01); 668 nm_wr_1(sc, 0x6cc, 0x87); 669 nm_wr_1(sc, 0x6cc, 0x80); 670 nm_wr_1(sc, 0x6cc, 0x00); 671 } 672 673 enum ac97_host_flags 674 neo_flags_codec(void *v) 675 { 676 677 return (AC97_HOST_DONT_READ); 678 } 679 680 int 681 neo_open(void *addr, int flags) 682 { 683 684 return (0); 685 } 686 687 /* 688 * Close function is called at splaudio(). 689 */ 690 void 691 neo_close(void *addr) 692 { 693 struct neo_softc *sc = addr; 694 695 neo_halt_output(sc); 696 neo_halt_input(sc); 697 698 sc->pintr = 0; 699 sc->rintr = 0; 700 } 701 702 int 703 neo_query_encoding(void *addr, struct audio_encoding *fp) 704 { 705 706 switch (fp->index) { 707 case 0: 708 strcpy(fp->name, AudioEulinear); 709 fp->encoding = AUDIO_ENCODING_ULINEAR; 710 fp->precision = 8; 711 fp->flags = 0; 712 return (0); 713 case 1: 714 strcpy(fp->name, AudioEmulaw); 715 fp->encoding = AUDIO_ENCODING_ULAW; 716 fp->precision = 8; 717 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 718 return (0); 719 case 2: 720 strcpy(fp->name, AudioEalaw); 721 fp->encoding = AUDIO_ENCODING_ALAW; 722 fp->precision = 8; 723 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 724 return (0); 725 case 3: 726 strcpy(fp->name, AudioEslinear); 727 fp->encoding = AUDIO_ENCODING_SLINEAR; 728 fp->precision = 8; 729 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 730 return (0); 731 case 4: 732 strcpy(fp->name, AudioEslinear_le); 733 fp->encoding = AUDIO_ENCODING_SLINEAR_LE; 734 fp->precision = 16; 735 fp->flags = 0; 736 return (0); 737 case 5: 738 strcpy(fp->name, AudioEulinear_le); 739 fp->encoding = AUDIO_ENCODING_ULINEAR_LE; 740 fp->precision = 16; 741 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 742 return (0); 743 case 6: 744 strcpy(fp->name, AudioEslinear_be); 745 fp->encoding = AUDIO_ENCODING_SLINEAR_BE; 746 fp->precision = 16; 747 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 748 return (0); 749 case 7: 750 strcpy(fp->name, AudioEulinear_be); 751 fp->encoding = AUDIO_ENCODING_ULINEAR_BE; 752 fp->precision = 16; 753 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 754 return (0); 755 default: 756 return (EINVAL); 757 } 758 } 759 760 /* Todo: don't commit settings to card until we've verified all parameters */ 761 int 762 neo_set_params(void *addr, int setmode, int usemode, struct audio_params *play, 763 struct audio_params *rec) 764 { 765 struct neo_softc *sc = addr; 766 u_int32_t base; 767 u_int8_t x; 768 int mode; 769 struct audio_params *p; 770 771 for (mode = AUMODE_RECORD; mode != -1; 772 mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) { 773 if ((setmode & mode) == 0) 774 continue; 775 776 p = mode == AUMODE_PLAY ? play : rec; 777 778 if (p == NULL) continue; 779 780 for (x = 0; x < 8; x++) { 781 if (p->sample_rate < 782 (samplerates[x] + samplerates[x + 1]) / 2) 783 break; 784 } 785 if (x == 8) 786 return (EINVAL); 787 788 p->sample_rate = samplerates[x]; 789 nm_loadcoeff(sc, mode, x); 790 791 x <<= 4; 792 x &= NM_RATE_MASK; 793 if (p->precision == 16) 794 x |= NM_RATE_BITS_16; 795 if (p->channels == 2) 796 x |= NM_RATE_STEREO; 797 798 base = (mode == AUMODE_PLAY)? 799 NM_PLAYBACK_REG_OFFSET : NM_RECORD_REG_OFFSET; 800 nm_wr_1(sc, base + NM_RATE_REG_OFFSET, x); 801 802 p->factor = 1; 803 p->sw_code = 0; 804 switch (p->encoding) { 805 case AUDIO_ENCODING_SLINEAR_BE: 806 if (p->precision == 16) 807 p->sw_code = swap_bytes; 808 else 809 p->sw_code = change_sign8; 810 break; 811 case AUDIO_ENCODING_SLINEAR_LE: 812 if (p->precision != 16) 813 p->sw_code = change_sign8; 814 break; 815 case AUDIO_ENCODING_ULINEAR_BE: 816 if (p->precision == 16) { 817 if (mode == AUMODE_PLAY) 818 p->sw_code = 819 swap_bytes_change_sign16_le; 820 else 821 p->sw_code = 822 change_sign16_swap_bytes_le; 823 } 824 break; 825 case AUDIO_ENCODING_ULINEAR_LE: 826 if (p->precision == 16) 827 p->sw_code = change_sign16_le; 828 break; 829 case AUDIO_ENCODING_ULAW: 830 if (mode == AUMODE_PLAY) { 831 p->factor = 2; 832 p->sw_code = mulaw_to_slinear16_le; 833 } else 834 p->sw_code = ulinear8_to_mulaw; 835 break; 836 case AUDIO_ENCODING_ALAW: 837 if (mode == AUMODE_PLAY) { 838 p->factor = 2; 839 p->sw_code = alaw_to_slinear16_le; 840 } else 841 p->sw_code = ulinear8_to_alaw; 842 break; 843 default: 844 return (EINVAL); 845 } 846 } 847 848 849 return (0); 850 } 851 852 int 853 neo_round_blocksize(void *addr, int blk) 854 { 855 856 return (NM_BUFFSIZE / 2); 857 } 858 859 int 860 neo_trigger_output(void *addr, void *start, void *end, int blksize, 861 void (*intr)(void *), void *arg, struct audio_params *param) 862 { 863 struct neo_softc *sc = addr; 864 int ssz; 865 866 sc->pintr = intr; 867 sc->parg = arg; 868 869 ssz = (param->precision * param->factor == 16) ? 2 : 1; 870 if (param->channels == 2) 871 ssz <<= 1; 872 873 sc->pbufsize = ((char*)end - (char *)start); 874 sc->pblksize = blksize; 875 sc->pwmark = blksize; 876 877 nm_wr_4(sc, NM_PBUFFER_START, sc->pbuf); 878 nm_wr_4(sc, NM_PBUFFER_END, sc->pbuf + sc->pbufsize - ssz); 879 nm_wr_4(sc, NM_PBUFFER_CURRP, sc->pbuf); 880 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark); 881 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, NM_PLAYBACK_FREERUN | 882 NM_PLAYBACK_ENABLE_FLAG); 883 nm_wr_2(sc, NM_AUDIO_MUTE_REG, 0); 884 885 return (0); 886 } 887 888 int 889 neo_trigger_input(void *addr, void *start, void *end, int blksize, 890 void (*intr)(void *), void *arg, struct audio_params *param) 891 { 892 struct neo_softc *sc = addr; 893 int ssz; 894 895 sc->rintr = intr; 896 sc->rarg = arg; 897 898 ssz = (param->precision * param->factor == 16) ? 2 : 1; 899 if (param->channels == 2) 900 ssz <<= 1; 901 902 sc->rbufsize = ((char*)end - (char *)start); 903 sc->rblksize = blksize; 904 sc->rwmark = blksize; 905 906 nm_wr_4(sc, NM_RBUFFER_START, sc->rbuf); 907 nm_wr_4(sc, NM_RBUFFER_END, sc->rbuf + sc->rbufsize); 908 nm_wr_4(sc, NM_RBUFFER_CURRP, sc->rbuf); 909 nm_wr_4(sc, NM_RBUFFER_WMARK, sc->rbuf + sc->rwmark); 910 nm_wr_1(sc, NM_RECORD_ENABLE_REG, NM_RECORD_FREERUN | 911 NM_RECORD_ENABLE_FLAG); 912 913 return (0); 914 } 915 916 int 917 neo_halt_output(void *addr) 918 { 919 struct neo_softc *sc = (struct neo_softc *)addr; 920 921 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, 0); 922 nm_wr_2(sc, NM_AUDIO_MUTE_REG, NM_AUDIO_MUTE_BOTH); 923 924 return (0); 925 } 926 927 int 928 neo_halt_input(void *addr) 929 { 930 struct neo_softc *sc = (struct neo_softc *)addr; 931 932 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0); 933 934 return (0); 935 } 936 937 int 938 neo_getdev(void *addr, struct audio_device *retp) 939 { 940 941 *retp = neo_device; 942 return (0); 943 } 944 945 int 946 neo_mixer_set_port(void *addr, mixer_ctrl_t *cp) 947 { 948 struct neo_softc *sc = addr; 949 950 return ((sc->codec_if->vtbl->mixer_set_port)(sc->codec_if, cp)); 951 } 952 953 int 954 neo_mixer_get_port(void *addr, mixer_ctrl_t *cp) 955 { 956 struct neo_softc *sc = addr; 957 958 return ((sc->codec_if->vtbl->mixer_get_port)(sc->codec_if, cp)); 959 } 960 961 int 962 neo_query_devinfo(void *addr, mixer_devinfo_t *dip) 963 { 964 struct neo_softc *sc = addr; 965 966 return ((sc->codec_if->vtbl->query_devinfo)(sc->codec_if, dip)); 967 } 968 969 void * 970 neo_malloc(void *addr, int direction, size_t size, int pool, int flags) 971 { 972 struct neo_softc *sc = addr; 973 void *rv = NULL; 974 975 switch (direction) { 976 case AUMODE_PLAY: 977 if (sc->pbuf_allocated == 0) { 978 rv = (void *) sc->pbuf_vaddr; 979 sc->pbuf_allocated = 1; 980 } 981 break; 982 983 case AUMODE_RECORD: 984 if (sc->rbuf_allocated == 0) { 985 rv = (void *) sc->rbuf_vaddr; 986 sc->rbuf_allocated = 1; 987 } 988 break; 989 } 990 991 return (rv); 992 } 993 994 void 995 neo_free(void *addr, void *ptr, int pool) 996 { 997 struct neo_softc *sc = addr; 998 vaddr_t v = (vaddr_t) ptr; 999 1000 if (v == sc->pbuf_vaddr) 1001 sc->pbuf_allocated = 0; 1002 else if (v == sc->rbuf_vaddr) 1003 sc->rbuf_allocated = 0; 1004 else 1005 printf("neo_free: bad address %p\n", ptr); 1006 } 1007 1008 size_t 1009 neo_round_buffersize(void *addr, int direction, size_t size) 1010 { 1011 1012 return (NM_BUFFSIZE); 1013 } 1014 1015 paddr_t 1016 neo_mappage(void *addr, void *mem, off_t off, int prot) 1017 { 1018 struct neo_softc *sc = addr; 1019 vaddr_t v = (vaddr_t) mem; 1020 bus_addr_t pciaddr; 1021 1022 if (v == sc->pbuf_vaddr) 1023 pciaddr = sc->pbuf_pciaddr; 1024 else if (v == sc->rbuf_vaddr) 1025 pciaddr = sc->rbuf_pciaddr; 1026 else 1027 return (-1); 1028 1029 return (bus_space_mmap(sc->bufiot, pciaddr, off, prot, 1030 BUS_SPACE_MAP_LINEAR)); 1031 } 1032 1033 int 1034 neo_get_props(void *addr) 1035 { 1036 1037 return (AUDIO_PROP_INDEPENDENT | AUDIO_PROP_MMAP | 1038 AUDIO_PROP_FULLDUPLEX); 1039 } 1040
Indexes created Thu Oct 02 10:09:58 GMT 2025