neo.c revision 1.5
1 /* $NetBSD: neo.c,v 1.5 2000/11/27 01:56:53 sommerfeld 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 * Power management (neoactivate) 113 * 114 * Figure out how to shrink that huge table neo-coeff.h 115 */ 116 117 #define NM_BUFFSIZE 16384 118 119 /* device private data */ 120 struct neo_softc { 121 struct device dev; 122 123 bus_space_tag_t bufiot; 124 bus_space_handle_t bufioh; 125 126 bus_space_tag_t regiot; 127 bus_space_handle_t regioh; 128 129 u_int32_t type; 130 void *ih; 131 132 void (*pintr)(void *); /* dma completion intr handler */ 133 void *parg; /* arg for intr() */ 134 135 void (*rintr)(void *); /* dma completion intr handler */ 136 void *rarg; /* arg for intr() */ 137 138 vaddr_t buf_vaddr; 139 vaddr_t rbuf_vaddr; 140 vaddr_t pbuf_vaddr; 141 int pbuf_allocated; 142 int rbuf_allocated; 143 144 bus_addr_t buf_pciaddr; 145 bus_addr_t rbuf_pciaddr; 146 bus_addr_t pbuf_pciaddr; 147 148 u_int32_t ac97_base, ac97_status, ac97_busy; 149 u_int32_t buftop, pbuf, rbuf, cbuf, acbuf; 150 u_int32_t playint, recint, misc1int, misc2int; 151 u_int32_t irsz, badintr; 152 153 u_int32_t pbufsize; 154 u_int32_t rbufsize; 155 156 u_int32_t pblksize; 157 u_int32_t rblksize; 158 159 u_int32_t pwmark; 160 u_int32_t rwmark; 161 162 struct ac97_codec_if *codec_if; 163 struct ac97_host_if host_if; 164 165 void *powerhook; 166 }; 167 168 /* -------------------------------------------------------------------- */ 169 170 /* 171 * prototypes 172 */ 173 174 static int nm_waitcd(struct neo_softc *sc); 175 static int nm_loadcoeff(struct neo_softc *sc, int dir, int num); 176 static int nm_init(struct neo_softc *); 177 178 int neo_match(struct device *, struct cfdata *, void *); 179 void neo_attach(struct device *, struct device *, void *); 180 int neo_intr(void *); 181 182 int neo_open(void *, int); 183 void neo_close(void *); 184 int neo_query_encoding(void *, struct audio_encoding *); 185 int neo_set_params(void *, int, int, struct audio_params *, 186 struct audio_params *); 187 int neo_round_blocksize(void *, int); 188 int neo_trigger_output(void *, void *, void *, int, void (*)(void *), 189 void *, struct audio_params *); 190 int neo_trigger_input(void *, void *, void *, int, void (*)(void *), 191 void *, struct audio_params *); 192 int neo_halt_output(void *); 193 int neo_halt_input(void *); 194 int neo_getdev(void *, struct audio_device *); 195 int neo_mixer_set_port(void *, mixer_ctrl_t *); 196 int neo_mixer_get_port(void *, mixer_ctrl_t *); 197 int neo_attach_codec(void *sc, struct ac97_codec_if *); 198 int neo_read_codec(void *sc, u_int8_t a, u_int16_t *d); 199 int neo_write_codec(void *sc, u_int8_t a, u_int16_t d); 200 void neo_reset_codec(void *sc); 201 enum ac97_host_flags neo_flags_codec(void *sc); 202 int neo_query_devinfo(void *, mixer_devinfo_t *); 203 void *neo_malloc(void *, int, size_t, int, int); 204 void neo_free(void *, void *, int); 205 size_t neo_round_buffersize(void *, int, size_t); 206 paddr_t neo_mappage(void *, void *, off_t, int); 207 int neo_get_props(void *); 208 void neo_set_mixer(struct neo_softc *sc, int a, int d); 209 void neo_power(int why, void *arg); 210 211 struct cfattach neo_ca = { 212 sizeof(struct neo_softc), neo_match, neo_attach 213 }; 214 215 struct audio_device neo_device = { 216 "NeoMagic 256", 217 "", 218 "neo" 219 }; 220 221 /* The actual rates supported by the card. */ 222 static const int samplerates[9] = { 223 8000, 224 11025, 225 16000, 226 22050, 227 24000, 228 32000, 229 44100, 230 48000, 231 99999999 232 }; 233 234 /* -------------------------------------------------------------------- */ 235 236 struct audio_hw_if neo_hw_if = { 237 neo_open, 238 neo_close, 239 NULL, /* drain */ 240 neo_query_encoding, 241 neo_set_params, 242 neo_round_blocksize, 243 NULL, /* commit_setting */ 244 NULL, /* init_output */ 245 NULL, /* init_input */ 246 NULL, /* start_output */ 247 NULL, /* start_input */ 248 neo_halt_output, 249 neo_halt_input, 250 NULL, /* speaker_ctl */ 251 neo_getdev, 252 NULL, /* getfd */ 253 neo_mixer_set_port, 254 neo_mixer_get_port, 255 neo_query_devinfo, 256 neo_malloc, 257 neo_free, 258 neo_round_buffersize, 259 neo_mappage, 260 neo_get_props, 261 neo_trigger_output, 262 neo_trigger_input, 263 }; 264 265 /* -------------------------------------------------------------------- */ 266 267 #define nm_rd_1(sc, regno) \ 268 bus_space_read_1((sc)->regiot, (sc)->regioh, (regno)) 269 270 #define nm_rd_2(sc, regno) \ 271 bus_space_read_2((sc)->regiot, (sc)->regioh, (regno)) 272 273 #define nm_rd_4(sc, regno) \ 274 bus_space_read_4((sc)->regiot, (sc)->regioh, (regno)) 275 276 #define nm_wr_1(sc, regno, val) \ 277 bus_space_write_1((sc)->regiot, (sc)->regioh, (regno), (val)) 278 279 #define nm_wr_2(sc, regno, val) \ 280 bus_space_write_2((sc)->regiot, (sc)->regioh, (regno), (val)) 281 282 #define nm_wr_4(sc, regno, val) \ 283 bus_space_write_4((sc)->regiot, (sc)->regioh, (regno), (val)) 284 285 #define nm_rdbuf_4(sc, regno) \ 286 bus_space_read_4((sc)->bufiot, (sc)->bufioh, (regno)) 287 288 #define nm_wrbuf_1(sc, regno, val) \ 289 bus_space_write_1((sc)->bufiot, (sc)->bufioh, (regno), (val)) 290 291 /* ac97 codec */ 292 static int 293 nm_waitcd(struct neo_softc *sc) 294 { 295 int cnt = 10; 296 int fail = 1; 297 298 while (cnt-- > 0) { 299 if (nm_rd_2(sc, sc->ac97_status) & sc->ac97_busy) 300 DELAY(100); 301 else { 302 fail = 0; 303 break; 304 } 305 } 306 return (fail); 307 } 308 309 310 static void 311 nm_ackint(struct neo_softc *sc, u_int32_t num) 312 { 313 314 switch (sc->type) { 315 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 316 nm_wr_2(sc, NM_INT_REG, num << 1); 317 break; 318 319 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 320 nm_wr_4(sc, NM_INT_REG, num); 321 break; 322 } 323 } 324 325 static int 326 nm_loadcoeff(struct neo_softc *sc, int dir, int num) 327 { 328 int ofs, sz, i; 329 u_int32_t addr; 330 331 addr = (dir == AUMODE_PLAY)? 0x01c : 0x21c; 332 if (dir == AUMODE_RECORD) 333 num += 8; 334 sz = coefficientSizes[num]; 335 ofs = 0; 336 while (num-- > 0) 337 ofs+= coefficientSizes[num]; 338 for (i = 0; i < sz; i++) 339 nm_wrbuf_1(sc, sc->cbuf + i, coefficients[ofs + i]); 340 nm_wr_4(sc, addr, sc->cbuf); 341 if (dir == AUMODE_PLAY) 342 sz--; 343 nm_wr_4(sc, addr + 4, sc->cbuf + sz); 344 return 0; 345 } 346 347 /* The interrupt handler */ 348 int 349 neo_intr(void *p) 350 { 351 struct neo_softc *sc = (struct neo_softc *)p; 352 int status, x, active; 353 int rv = 0; 354 355 active = (sc->pintr || sc->rintr); 356 status = (sc->irsz == 2) ? 357 nm_rd_2(sc, NM_INT_REG) : 358 nm_rd_4(sc, NM_INT_REG); 359 360 if (status & sc->playint) { 361 status &= ~sc->playint; 362 363 sc->pwmark += sc->pblksize; 364 sc->pwmark %= sc->pbufsize; 365 366 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark); 367 368 nm_ackint(sc, sc->playint); 369 370 if (sc->pintr) 371 (*sc->pintr)(sc->parg); 372 373 rv = 1; 374 } 375 if (status & sc->recint) { 376 status &= ~sc->recint; 377 378 sc->rwmark += sc->rblksize; 379 sc->rwmark %= sc->rbufsize; 380 381 nm_ackint(sc, sc->recint); 382 if (sc->rintr) 383 (*sc->rintr)(sc->rarg); 384 385 rv = 1; 386 } 387 if (status & sc->misc1int) { 388 status &= ~sc->misc1int; 389 nm_ackint(sc, sc->misc1int); 390 x = nm_rd_1(sc, 0x400); 391 nm_wr_1(sc, 0x400, x | 2); 392 printf("%s: misc int 1\n", sc->dev.dv_xname); 393 rv = 1; 394 } 395 if (status & sc->misc2int) { 396 status &= ~sc->misc2int; 397 nm_ackint(sc, sc->misc2int); 398 x = nm_rd_1(sc, 0x400); 399 nm_wr_1(sc, 0x400, x & ~2); 400 printf("%s: misc int 2\n", sc->dev.dv_xname); 401 rv = 1; 402 } 403 if (status) { 404 status &= ~sc->misc2int; 405 nm_ackint(sc, sc->misc2int); 406 printf("%s: unknown int\n", sc->dev.dv_xname); 407 rv = 1; 408 } 409 410 return (rv); 411 } 412 413 /* -------------------------------------------------------------------- */ 414 415 /* 416 * Probe and attach the card 417 */ 418 419 static int 420 nm_init(struct neo_softc *sc) 421 { 422 u_int32_t ofs, i; 423 424 switch (sc->type) { 425 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 426 sc->ac97_base = NM_MIXER_OFFSET; 427 sc->ac97_status = NM_MIXER_STATUS_OFFSET; 428 sc->ac97_busy = NM_MIXER_READY_MASK; 429 430 sc->buftop = 2560 * 1024; 431 432 sc->irsz = 2; 433 sc->playint = NM_PLAYBACK_INT; 434 sc->recint = NM_RECORD_INT; 435 sc->misc1int = NM_MISC_INT_1; 436 sc->misc2int = NM_MISC_INT_2; 437 break; 438 439 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 440 sc->ac97_base = NM_MIXER_OFFSET; 441 sc->ac97_status = NM2_MIXER_STATUS_OFFSET; 442 sc->ac97_busy = NM2_MIXER_READY_MASK; 443 444 sc->buftop = (nm_rd_2(sc, 0xa0b) ? 6144 : 4096) * 1024; 445 446 sc->irsz = 4; 447 sc->playint = NM2_PLAYBACK_INT; 448 sc->recint = NM2_RECORD_INT; 449 sc->misc1int = NM2_MISC_INT_1; 450 sc->misc2int = NM2_MISC_INT_2; 451 break; 452 #ifdef DIAGNOSTIC 453 default: 454 panic("nm_init: impossible"); 455 #endif 456 } 457 458 sc->badintr = 0; 459 ofs = sc->buftop - 0x0400; 460 sc->buftop -= 0x1400; 461 462 if ((nm_rdbuf_4(sc, ofs) & NM_SIG_MASK) == NM_SIGNATURE) { 463 i = nm_rdbuf_4(sc, ofs + 4); 464 if (i != 0 && i != 0xffffffff) 465 sc->buftop = i; 466 } 467 468 sc->cbuf = sc->buftop - NM_MAX_COEFFICIENT; 469 sc->rbuf = sc->cbuf - NM_BUFFSIZE; 470 sc->pbuf = sc->rbuf - NM_BUFFSIZE; 471 sc->acbuf = sc->pbuf - (NM_TOTAL_COEFF_COUNT * 4); 472 473 sc->buf_vaddr = (vaddr_t) bus_space_vaddr(sc->bufiot, sc->bufioh); 474 sc->rbuf_vaddr = sc->buf_vaddr + sc->rbuf; 475 sc->pbuf_vaddr = sc->buf_vaddr + sc->pbuf; 476 477 sc->rbuf_pciaddr = sc->buf_pciaddr + sc->rbuf; 478 sc->pbuf_pciaddr = sc->buf_pciaddr + sc->pbuf; 479 480 nm_wr_1(sc, 0, 0x11); 481 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0); 482 nm_wr_2(sc, 0x214, 0); 483 484 return 0; 485 } 486 487 int 488 neo_match(struct device *parent, struct cfdata *match, void *aux) 489 { 490 struct pci_attach_args *pa = aux; 491 pcireg_t subdev; 492 493 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_NEOMAGIC) 494 return (0); 495 496 subdev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 497 498 switch (PCI_PRODUCT(pa->pa_id)) { 499 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 500 /* 501 * We have to weed-out the non-AC'97 versions of 502 * the chip (i.e. the ones that are known to work 503 * in WSS emulation mode), as they won't work with 504 * this driver. 505 */ 506 switch (PCI_VENDOR(subdev)) { 507 case PCI_VENDOR_DELL: 508 switch (PCI_PRODUCT(subdev)) { 509 case 0x008f: 510 return (0); 511 } 512 break; 513 514 case PCI_VENDOR_HP: 515 switch (PCI_PRODUCT(subdev)) { 516 case 0x0007: 517 return (0); 518 } 519 } 520 return (1); 521 522 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 523 return (1); 524 } 525 526 return (0); 527 } 528 529 void 530 neo_power(int why, void *addr) 531 { 532 struct neo_softc *sc = (struct neo_softc *)addr; 533 534 if (why == PWR_RESUME) { 535 nm_init(sc); 536 (sc->codec_if->vtbl->restore_ports)(sc->codec_if); 537 } 538 } 539 540 void 541 neo_attach(struct device *parent, struct device *self, void *aux) 542 { 543 struct neo_softc *sc = (struct neo_softc *)self; 544 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 545 pci_chipset_tag_t pc = pa->pa_pc; 546 char const *intrstr; 547 pci_intr_handle_t ih; 548 pcireg_t csr; 549 int error; 550 551 sc->type = PCI_PRODUCT(pa->pa_id); 552 553 printf(": NeoMagic 256%s audio\n", 554 sc->type == PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU ? "AV" : "ZX"); 555 556 /* Map I/O register */ 557 if (pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_MEM, 0, 558 &sc->bufiot, &sc->bufioh, &sc->buf_pciaddr, NULL)) { 559 printf("%s: can't map buffer\n", sc->dev.dv_xname); 560 return; 561 } 562 563 if (pci_mapreg_map(pa, PCI_MAPREG_START + 4, PCI_MAPREG_TYPE_MEM, 0, 564 &sc->regiot, &sc->regioh, NULL, NULL)) { 565 printf("%s: can't map registers\n", sc->dev.dv_xname); 566 return; 567 } 568 569 /* Map and establish the interrupt. */ 570 if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, 571 pa->pa_intrline, &ih)) { 572 printf("%s: couldn't map interrupt\n", sc->dev.dv_xname); 573 return; 574 } 575 576 intrstr = pci_intr_string(pc, ih); 577 sc->ih = pci_intr_establish(pc, ih, IPL_AUDIO, neo_intr, sc); 578 579 if (sc->ih == NULL) { 580 printf("%s: couldn't establish interrupt", 581 sc->dev.dv_xname); 582 if (intrstr != NULL) 583 printf(" at %s", intrstr); 584 printf("\n"); 585 return; 586 } 587 printf("%s: interruping at %s\n", sc->dev.dv_xname, intrstr); 588 589 if ((error = nm_init(sc)) != 0) 590 return; 591 592 /* Enable the device. */ 593 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 594 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 595 csr | PCI_COMMAND_MASTER_ENABLE); 596 597 sc->host_if.arg = sc; 598 599 sc->host_if.attach = neo_attach_codec; 600 sc->host_if.read = neo_read_codec; 601 sc->host_if.write = neo_write_codec; 602 sc->host_if.reset = neo_reset_codec; 603 sc->host_if.flags = neo_flags_codec; 604 605 if ((error = ac97_attach(&sc->host_if)) != 0) 606 return; 607 608 sc->powerhook = powerhook_establish(neo_power, sc); 609 610 audio_attach_mi(&neo_hw_if, sc, &sc->dev); 611 } 612 613 int 614 neo_read_codec(void *v, u_int8_t a, u_int16_t *d) 615 { 616 struct neo_softc *sc = v; 617 618 if (!nm_waitcd(sc)) { 619 *d = nm_rd_2(sc, sc->ac97_base + a); 620 DELAY(1000); 621 return 0; 622 } 623 624 return (ENXIO); 625 } 626 627 628 int 629 neo_write_codec(void *v, u_int8_t a, u_int16_t d) 630 { 631 struct neo_softc *sc = v; 632 int cnt = 3; 633 634 if (!nm_waitcd(sc)) { 635 while (cnt-- > 0) { 636 nm_wr_2(sc, sc->ac97_base + a, d); 637 if (!nm_waitcd(sc)) { 638 DELAY(1000); 639 return (0); 640 } 641 } 642 } 643 644 return (ENXIO); 645 } 646 647 int 648 neo_attach_codec(void *v, struct ac97_codec_if *codec_if) 649 { 650 struct neo_softc *sc = v; 651 652 sc->codec_if = codec_if; 653 return (0); 654 } 655 656 void 657 neo_reset_codec(void *v) 658 { 659 struct neo_softc *sc = v; 660 661 nm_wr_1(sc, 0x6c0, 0x01); 662 nm_wr_1(sc, 0x6cc, 0x87); 663 nm_wr_1(sc, 0x6cc, 0x80); 664 nm_wr_1(sc, 0x6cc, 0x00); 665 } 666 667 enum ac97_host_flags 668 neo_flags_codec(void *v) 669 { 670 671 return (AC97_HOST_DONT_READ); 672 } 673 674 int 675 neo_open(void *addr, int flags) 676 { 677 678 return (0); 679 } 680 681 /* 682 * Close function is called at splaudio(). 683 */ 684 void 685 neo_close(void *addr) 686 { 687 struct neo_softc *sc = addr; 688 689 neo_halt_output(sc); 690 neo_halt_input(sc); 691 692 sc->pintr = 0; 693 sc->rintr = 0; 694 } 695 696 int 697 neo_query_encoding(void *addr, struct audio_encoding *fp) 698 { 699 700 switch (fp->index) { 701 case 0: 702 strcpy(fp->name, AudioEulinear); 703 fp->encoding = AUDIO_ENCODING_ULINEAR; 704 fp->precision = 8; 705 fp->flags = 0; 706 return (0); 707 case 1: 708 strcpy(fp->name, AudioEmulaw); 709 fp->encoding = AUDIO_ENCODING_ULAW; 710 fp->precision = 8; 711 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 712 return (0); 713 case 2: 714 strcpy(fp->name, AudioEalaw); 715 fp->encoding = AUDIO_ENCODING_ALAW; 716 fp->precision = 8; 717 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 718 return (0); 719 case 3: 720 strcpy(fp->name, AudioEslinear); 721 fp->encoding = AUDIO_ENCODING_SLINEAR; 722 fp->precision = 8; 723 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 724 return (0); 725 case 4: 726 strcpy(fp->name, AudioEslinear_le); 727 fp->encoding = AUDIO_ENCODING_SLINEAR_LE; 728 fp->precision = 16; 729 fp->flags = 0; 730 return (0); 731 case 5: 732 strcpy(fp->name, AudioEulinear_le); 733 fp->encoding = AUDIO_ENCODING_ULINEAR_LE; 734 fp->precision = 16; 735 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 736 return (0); 737 case 6: 738 strcpy(fp->name, AudioEslinear_be); 739 fp->encoding = AUDIO_ENCODING_SLINEAR_BE; 740 fp->precision = 16; 741 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 742 return (0); 743 case 7: 744 strcpy(fp->name, AudioEulinear_be); 745 fp->encoding = AUDIO_ENCODING_ULINEAR_BE; 746 fp->precision = 16; 747 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 748 return (0); 749 default: 750 return (EINVAL); 751 } 752 } 753 754 /* Todo: don't commit settings to card until we've verified all parameters */ 755 int 756 neo_set_params(void *addr, int setmode, int usemode, struct audio_params *play, 757 struct audio_params *rec) 758 { 759 struct neo_softc *sc = addr; 760 u_int32_t base; 761 u_int8_t x; 762 int mode; 763 struct audio_params *p; 764 765 for (mode = AUMODE_RECORD; mode != -1; 766 mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) { 767 if ((setmode & mode) == 0) 768 continue; 769 770 p = mode == AUMODE_PLAY ? play : rec; 771 772 if (p == NULL) continue; 773 774 for (x = 0; x < 8; x++) { 775 if (p->sample_rate < 776 (samplerates[x] + samplerates[x + 1]) / 2) 777 break; 778 } 779 if (x == 8) 780 return (EINVAL); 781 782 p->sample_rate = samplerates[x]; 783 nm_loadcoeff(sc, mode, x); 784 785 x <<= 4; 786 x &= NM_RATE_MASK; 787 if (p->precision == 16) 788 x |= NM_RATE_BITS_16; 789 if (p->channels == 2) 790 x |= NM_RATE_STEREO; 791 792 base = (mode == AUMODE_PLAY)? 793 NM_PLAYBACK_REG_OFFSET : NM_RECORD_REG_OFFSET; 794 nm_wr_1(sc, base + NM_RATE_REG_OFFSET, x); 795 796 p->factor = 1; 797 p->sw_code = 0; 798 switch (p->encoding) { 799 case AUDIO_ENCODING_SLINEAR_BE: 800 if (p->precision == 16) 801 p->sw_code = swap_bytes; 802 else 803 p->sw_code = change_sign8; 804 break; 805 case AUDIO_ENCODING_SLINEAR_LE: 806 if (p->precision != 16) 807 p->sw_code = change_sign8; 808 break; 809 case AUDIO_ENCODING_ULINEAR_BE: 810 if (p->precision == 16) { 811 if (mode == AUMODE_PLAY) 812 p->sw_code = 813 swap_bytes_change_sign16_le; 814 else 815 p->sw_code = 816 change_sign16_swap_bytes_le; 817 } 818 break; 819 case AUDIO_ENCODING_ULINEAR_LE: 820 if (p->precision == 16) 821 p->sw_code = change_sign16_le; 822 break; 823 case AUDIO_ENCODING_ULAW: 824 if (mode == AUMODE_PLAY) { 825 p->factor = 2; 826 p->sw_code = mulaw_to_slinear16_le; 827 } else 828 p->sw_code = ulinear8_to_mulaw; 829 break; 830 case AUDIO_ENCODING_ALAW: 831 if (mode == AUMODE_PLAY) { 832 p->factor = 2; 833 p->sw_code = alaw_to_slinear16_le; 834 } else 835 p->sw_code = ulinear8_to_alaw; 836 break; 837 default: 838 return (EINVAL); 839 } 840 } 841 842 843 return (0); 844 } 845 846 int 847 neo_round_blocksize(void *addr, int blk) 848 { 849 850 return (NM_BUFFSIZE / 2); 851 } 852 853 int 854 neo_trigger_output(void *addr, void *start, void *end, int blksize, 855 void (*intr)(void *), void *arg, struct audio_params *param) 856 { 857 struct neo_softc *sc = addr; 858 int ssz; 859 860 sc->pintr = intr; 861 sc->parg = arg; 862 863 ssz = (param->precision * param->factor == 16) ? 2 : 1; 864 if (param->channels == 2) 865 ssz <<= 1; 866 867 sc->pbufsize = ((char*)end - (char *)start); 868 sc->pblksize = blksize; 869 sc->pwmark = blksize; 870 871 nm_wr_4(sc, NM_PBUFFER_START, sc->pbuf); 872 nm_wr_4(sc, NM_PBUFFER_END, sc->pbuf + sc->pbufsize - ssz); 873 nm_wr_4(sc, NM_PBUFFER_CURRP, sc->pbuf); 874 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark); 875 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, NM_PLAYBACK_FREERUN | 876 NM_PLAYBACK_ENABLE_FLAG); 877 nm_wr_2(sc, NM_AUDIO_MUTE_REG, 0); 878 879 return (0); 880 } 881 882 int 883 neo_trigger_input(void *addr, void *start, void *end, int blksize, 884 void (*intr)(void *), void *arg, struct audio_params *param) 885 { 886 struct neo_softc *sc = addr; 887 int ssz; 888 889 sc->rintr = intr; 890 sc->rarg = arg; 891 892 ssz = (param->precision * param->factor == 16) ? 2 : 1; 893 if (param->channels == 2) 894 ssz <<= 1; 895 896 sc->rbufsize = ((char*)end - (char *)start); 897 sc->rblksize = blksize; 898 sc->rwmark = blksize; 899 900 nm_wr_4(sc, NM_RBUFFER_START, sc->rbuf); 901 nm_wr_4(sc, NM_RBUFFER_END, sc->rbuf + sc->rbufsize); 902 nm_wr_4(sc, NM_RBUFFER_CURRP, sc->rbuf); 903 nm_wr_4(sc, NM_RBUFFER_WMARK, sc->rbuf + sc->rwmark); 904 nm_wr_1(sc, NM_RECORD_ENABLE_REG, NM_RECORD_FREERUN | 905 NM_RECORD_ENABLE_FLAG); 906 907 return (0); 908 } 909 910 int 911 neo_halt_output(void *addr) 912 { 913 struct neo_softc *sc = (struct neo_softc *)addr; 914 915 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, 0); 916 nm_wr_2(sc, NM_AUDIO_MUTE_REG, NM_AUDIO_MUTE_BOTH); 917 918 return (0); 919 } 920 921 int 922 neo_halt_input(void *addr) 923 { 924 struct neo_softc *sc = (struct neo_softc *)addr; 925 926 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0); 927 928 return (0); 929 } 930 931 int 932 neo_getdev(void *addr, struct audio_device *retp) 933 { 934 935 *retp = neo_device; 936 return (0); 937 } 938 939 int 940 neo_mixer_set_port(void *addr, mixer_ctrl_t *cp) 941 { 942 struct neo_softc *sc = addr; 943 944 return ((sc->codec_if->vtbl->mixer_set_port)(sc->codec_if, cp)); 945 } 946 947 int 948 neo_mixer_get_port(void *addr, mixer_ctrl_t *cp) 949 { 950 struct neo_softc *sc = addr; 951 952 return ((sc->codec_if->vtbl->mixer_get_port)(sc->codec_if, cp)); 953 } 954 955 int 956 neo_query_devinfo(void *addr, mixer_devinfo_t *dip) 957 { 958 struct neo_softc *sc = addr; 959 960 return ((sc->codec_if->vtbl->query_devinfo)(sc->codec_if, dip)); 961 } 962 963 void * 964 neo_malloc(void *addr, int direction, size_t size, int pool, int flags) 965 { 966 struct neo_softc *sc = addr; 967 void *rv = NULL; 968 969 switch (direction) { 970 case AUMODE_PLAY: 971 if (sc->pbuf_allocated == 0) { 972 rv = (void *) sc->pbuf_vaddr; 973 sc->pbuf_allocated = 1; 974 } 975 break; 976 977 case AUMODE_RECORD: 978 if (sc->rbuf_allocated == 0) { 979 rv = (void *) sc->rbuf_vaddr; 980 sc->rbuf_allocated = 1; 981 } 982 break; 983 } 984 985 return (rv); 986 } 987 988 void 989 neo_free(void *addr, void *ptr, int pool) 990 { 991 struct neo_softc *sc = addr; 992 vaddr_t v = (vaddr_t) ptr; 993 994 if (v == sc->pbuf_vaddr) 995 sc->pbuf_allocated = 0; 996 else if (v == sc->rbuf_vaddr) 997 sc->rbuf_allocated = 0; 998 else 999 printf("neo_free: bad address %p\n", ptr); 1000 } 1001 1002 size_t 1003 neo_round_buffersize(void *addr, int direction, size_t size) 1004 { 1005 1006 return (NM_BUFFSIZE); 1007 } 1008 1009 paddr_t 1010 neo_mappage(void *addr, void *mem, off_t off, int prot) 1011 { 1012 struct neo_softc *sc = addr; 1013 vaddr_t v = (vaddr_t) mem; 1014 bus_addr_t pciaddr; 1015 1016 /* XXX Need new mapping code. */ 1017 1018 if (v == sc->pbuf_vaddr) 1019 pciaddr = sc->pbuf_pciaddr; 1020 else if (v == sc->rbuf_vaddr) 1021 pciaddr = sc->rbuf_pciaddr; 1022 else 1023 return (-1); 1024 1025 #ifdef __i386__ 1026 return (i386_btop(pciaddr + off)); 1027 #else 1028 return (-1); 1029 #endif 1030 } 1031 1032 int 1033 neo_get_props(void *addr) 1034 { 1035 1036 return (AUDIO_PROP_INDEPENDENT | AUDIO_PROP_MMAP | 1037 AUDIO_PROP_FULLDUPLEX); 1038 } 1039
Indexes created Thu Oct 02 10:09:58 GMT 2025