neo.c revision 1.20
1 /* $NetBSD: neo.c,v 1.20 2003/10/30 01:58:17 simonb 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/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: neo.c,v 1.20 2003/10/30 01:58:17 simonb Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/malloc.h> 41 #include <sys/device.h> 42 43 #include <machine/bus.h> 44 45 #include <dev/pci/pcidevs.h> 46 #include <dev/pci/pcivar.h> 47 48 #include <dev/pci/neoreg.h> 49 #include <dev/pci/neo-coeff.h> 50 51 #include <sys/audioio.h> 52 #include <dev/audio_if.h> 53 #include <dev/mulaw.h> 54 #include <dev/auconv.h> 55 56 #include <dev/ic/ac97var.h> 57 58 59 /* -------------------------------------------------------------------- */ 60 /* 61 * As of 04/13/00, public documentation on the Neomagic 256 is not available. 62 * These comments were gleaned by looking at the driver carefully. 63 * 64 * The Neomagic 256 AV/ZX chips provide both video and audio capabilities 65 * on one chip. About 2-6 megabytes of memory are associated with 66 * the chip. Most of this goes to video frame buffers, but some is used for 67 * audio buffering 68 * 69 * Unlike most PCI audio chips, the Neomagic chip does not rely on DMA. 70 * Instead, the chip allows you to carve out two ring buffers out of its 71 * memory. However you carve this and how much you can carve seems to be 72 * voodoo. The algorithm is in nm_init. 73 * 74 * Most Neomagic audio chips use the AC-97 codec interface. However, there 75 * seem to be a select few chips 256AV chips that do not support AC-97. 76 * This driver does not support them but there are rumors that it 77 * might work with wss isa drivers. This might require some playing around 78 * with your BIOS. 79 * 80 * The Neomagic 256 AV/ZX have 2 PCI I/O region descriptors. Both of 81 * them describe a memory region. The frame buffer is the first region 82 * and the register set is the secodn region. 83 * 84 * The register manipulation logic is taken from the Linux driver, 85 * which is in the public domain. 86 * 87 * The Neomagic is even nice enough to map the AC-97 codec registers into 88 * the register space to allow direct manipulation. Watch out, accessing 89 * AC-97 registers on the Neomagic requires great delicateness, otherwise 90 * the thing will hang the PCI bus, rendering your system frozen. 91 * 92 * For one, it seems the Neomagic status register that reports AC-97 93 * readiness should NOT be polled more often than once each 1ms. 94 * 95 * Also, writes to the AC-97 register space may take order 40us to 96 * complete. 97 * 98 * Unlike many sound engines, the Neomagic does not support (as far as 99 * we know :) the notion of interrupting every n bytes transferred, 100 * unlike many DMA engines. Instead, it allows you to specify one 101 * location in each ring buffer (called the watermark). When the chip 102 * passes that location while playing, it signals an interrupt. 103 * 104 * The ring buffer size is currently 16k. That is about 100ms of audio 105 * at 44.1kHz/stero/16 bit. However, to keep the buffer full, interrupts 106 * are generated more often than that, so 20-40 interrupts per second 107 * should not be unexpected. Increasing BUFFSIZE should help minimize 108 * of glitches due to drivers that spend to much time looping at high 109 * privelege levels as well as the impact of badly written audio 110 * interface clients. 111 * 112 * TO-DO list: 113 * Figure out interaction with video stuff (look at Xfree86 driver?) 114 * 115 * Figure out how to shrink that huge table neo-coeff.h 116 */ 117 118 #define NM_BUFFSIZE 16384 119 120 /* device private data */ 121 struct neo_softc { 122 struct device dev; 123 124 bus_space_tag_t bufiot; 125 bus_space_handle_t bufioh; 126 127 bus_space_tag_t regiot; 128 bus_space_handle_t regioh; 129 130 u_int32_t type; 131 void *ih; 132 133 void (*pintr)(void *); /* DMA completion intr handler */ 134 void *parg; /* arg for intr() */ 135 136 void (*rintr)(void *); /* DMA completion intr handler */ 137 void *rarg; /* arg for intr() */ 138 139 vaddr_t buf_vaddr; 140 vaddr_t rbuf_vaddr; 141 vaddr_t pbuf_vaddr; 142 int pbuf_allocated; 143 int rbuf_allocated; 144 145 bus_addr_t buf_pciaddr; 146 bus_addr_t rbuf_pciaddr; 147 bus_addr_t pbuf_pciaddr; 148 149 u_int32_t ac97_base, ac97_status, ac97_busy; 150 u_int32_t buftop, pbuf, rbuf, cbuf, acbuf; 151 u_int32_t playint, recint, misc1int, misc2int; 152 u_int32_t irsz, badintr; 153 154 u_int32_t pbufsize; 155 u_int32_t rbufsize; 156 157 u_int32_t pblksize; 158 u_int32_t rblksize; 159 160 u_int32_t pwmark; 161 u_int32_t rwmark; 162 163 struct ac97_codec_if *codec_if; 164 struct ac97_host_if host_if; 165 166 void *powerhook; 167 }; 168 169 /* -------------------------------------------------------------------- */ 170 171 /* 172 * prototypes 173 */ 174 175 static int nm_waitcd(struct neo_softc *sc); 176 static int nm_loadcoeff(struct neo_softc *sc, int dir, int num); 177 static int nm_init(struct neo_softc *); 178 179 int neo_match(struct device *, struct cfdata *, void *); 180 void neo_attach(struct device *, struct device *, void *); 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 *, 187 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, struct malloc_type *, int); 205 void neo_free(void *, void *, struct malloc_type *); 206 size_t neo_round_buffersize(void *, int, size_t); 207 paddr_t neo_mappage(void *, void *, off_t, int); 208 int neo_get_props(void *); 209 void neo_set_mixer(struct neo_softc *sc, int a, int d); 210 void neo_power(int why, void *arg); 211 212 CFATTACH_DECL(neo, sizeof(struct neo_softc), 213 neo_match, neo_attach, NULL, NULL); 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 NULL, 264 }; 265 266 /* -------------------------------------------------------------------- */ 267 268 #define nm_rd_1(sc, regno) \ 269 bus_space_read_1((sc)->regiot, (sc)->regioh, (regno)) 270 271 #define nm_rd_2(sc, regno) \ 272 bus_space_read_2((sc)->regiot, (sc)->regioh, (regno)) 273 274 #define nm_rd_4(sc, regno) \ 275 bus_space_read_4((sc)->regiot, (sc)->regioh, (regno)) 276 277 #define nm_wr_1(sc, regno, val) \ 278 bus_space_write_1((sc)->regiot, (sc)->regioh, (regno), (val)) 279 280 #define nm_wr_2(sc, regno, val) \ 281 bus_space_write_2((sc)->regiot, (sc)->regioh, (regno), (val)) 282 283 #define nm_wr_4(sc, regno, val) \ 284 bus_space_write_4((sc)->regiot, (sc)->regioh, (regno), (val)) 285 286 #define nm_rdbuf_4(sc, regno) \ 287 bus_space_read_4((sc)->bufiot, (sc)->bufioh, (regno)) 288 289 #define nm_wrbuf_1(sc, regno, val) \ 290 bus_space_write_1((sc)->bufiot, (sc)->bufioh, (regno), (val)) 291 292 /* ac97 codec */ 293 static int 294 nm_waitcd(struct neo_softc *sc) 295 { 296 int cnt = 10; 297 int fail = 1; 298 299 while (cnt-- > 0) { 300 if (nm_rd_2(sc, sc->ac97_status) & sc->ac97_busy) 301 DELAY(100); 302 else { 303 fail = 0; 304 break; 305 } 306 } 307 return (fail); 308 } 309 310 311 static void 312 nm_ackint(struct neo_softc *sc, u_int32_t num) 313 { 314 315 switch (sc->type) { 316 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 317 nm_wr_2(sc, NM_INT_REG, num << 1); 318 break; 319 320 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 321 nm_wr_4(sc, NM_INT_REG, num); 322 break; 323 } 324 } 325 326 static int 327 nm_loadcoeff(struct neo_softc *sc, int dir, int num) 328 { 329 int ofs, sz, i; 330 u_int32_t addr; 331 332 addr = (dir == AUMODE_PLAY)? 0x01c : 0x21c; 333 if (dir == AUMODE_RECORD) 334 num += 8; 335 sz = coefficientSizes[num]; 336 ofs = 0; 337 while (num-- > 0) 338 ofs+= coefficientSizes[num]; 339 for (i = 0; i < sz; i++) 340 nm_wrbuf_1(sc, sc->cbuf + i, coefficients[ofs + i]); 341 nm_wr_4(sc, addr, sc->cbuf); 342 if (dir == AUMODE_PLAY) 343 sz--; 344 nm_wr_4(sc, addr + 4, sc->cbuf + sz); 345 return 0; 346 } 347 348 /* The interrupt handler */ 349 int 350 neo_intr(void *p) 351 { 352 struct neo_softc *sc = (struct neo_softc *)p; 353 int status, x; 354 int rv = 0; 355 356 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 break; 520 521 case PCI_VENDOR_IBM: 522 switch (PCI_PRODUCT(subdev)) { 523 case 0x00dd: 524 return (0); 525 } 526 break; 527 } 528 return (1); 529 530 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 531 return (1); 532 } 533 534 return (0); 535 } 536 537 void 538 neo_power(int why, void *addr) 539 { 540 struct neo_softc *sc = (struct neo_softc *)addr; 541 542 if (why == PWR_RESUME) { 543 nm_init(sc); 544 (sc->codec_if->vtbl->restore_ports)(sc->codec_if); 545 } 546 } 547 548 void 549 neo_attach(struct device *parent, struct device *self, void *aux) 550 { 551 struct neo_softc *sc = (struct neo_softc *)self; 552 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 553 pci_chipset_tag_t pc = pa->pa_pc; 554 char const *intrstr; 555 pci_intr_handle_t ih; 556 pcireg_t csr; 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, 571 BUS_SPACE_MAP_LINEAR, &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 (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 (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, struct malloc_type *pool, 971 int flags) 972 { 973 struct neo_softc *sc = addr; 974 void *rv = NULL; 975 976 switch (direction) { 977 case AUMODE_PLAY: 978 if (sc->pbuf_allocated == 0) { 979 rv = (void *) sc->pbuf_vaddr; 980 sc->pbuf_allocated = 1; 981 } 982 break; 983 984 case AUMODE_RECORD: 985 if (sc->rbuf_allocated == 0) { 986 rv = (void *) sc->rbuf_vaddr; 987 sc->rbuf_allocated = 1; 988 } 989 break; 990 } 991 992 return (rv); 993 } 994 995 void 996 neo_free(void *addr, void *ptr, struct malloc_type *pool) 997 { 998 struct neo_softc *sc = addr; 999 vaddr_t v = (vaddr_t) ptr; 1000 1001 if (v == sc->pbuf_vaddr) 1002 sc->pbuf_allocated = 0; 1003 else if (v == sc->rbuf_vaddr) 1004 sc->rbuf_allocated = 0; 1005 else 1006 printf("neo_free: bad address %p\n", ptr); 1007 } 1008 1009 size_t 1010 neo_round_buffersize(void *addr, int direction, size_t size) 1011 { 1012 1013 return (NM_BUFFSIZE); 1014 } 1015 1016 paddr_t 1017 neo_mappage(void *addr, void *mem, off_t off, int prot) 1018 { 1019 struct neo_softc *sc = addr; 1020 vaddr_t v = (vaddr_t) mem; 1021 bus_addr_t pciaddr; 1022 1023 if (v == sc->pbuf_vaddr) 1024 pciaddr = sc->pbuf_pciaddr; 1025 else if (v == sc->rbuf_vaddr) 1026 pciaddr = sc->rbuf_pciaddr; 1027 else 1028 return (-1); 1029 1030 return (bus_space_mmap(sc->bufiot, pciaddr, off, prot, 1031 BUS_SPACE_MAP_LINEAR)); 1032 } 1033 1034 int 1035 neo_get_props(void *addr) 1036 { 1037 1038 return (AUDIO_PROP_INDEPENDENT | AUDIO_PROP_MMAP | 1039 AUDIO_PROP_FULLDUPLEX); 1040 } 1041
Indexes created Thu Oct 02 10:09:58 GMT 2025