neo.c revision 1.15
1 /* $NetBSD: neo.c,v 1.15 2002/09/30 20:37:53 thorpej 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 1.15 2002/09/30 20:37:53 thorpej 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, int, int); 205 void neo_free(void *, void *, int); 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, active; 354 int rv = 0; 355 356 active = (sc->pintr || sc->rintr); 357 status = (sc->irsz == 2) ? 358 nm_rd_2(sc, NM_INT_REG) : 359 nm_rd_4(sc, NM_INT_REG); 360 361 if (status & sc->playint) { 362 status &= ~sc->playint; 363 364 sc->pwmark += sc->pblksize; 365 sc->pwmark %= sc->pbufsize; 366 367 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark); 368 369 nm_ackint(sc, sc->playint); 370 371 if (sc->pintr) 372 (*sc->pintr)(sc->parg); 373 374 rv = 1; 375 } 376 if (status & sc->recint) { 377 status &= ~sc->recint; 378 379 sc->rwmark += sc->rblksize; 380 sc->rwmark %= sc->rbufsize; 381 382 nm_ackint(sc, sc->recint); 383 if (sc->rintr) 384 (*sc->rintr)(sc->rarg); 385 386 rv = 1; 387 } 388 if (status & sc->misc1int) { 389 status &= ~sc->misc1int; 390 nm_ackint(sc, sc->misc1int); 391 x = nm_rd_1(sc, 0x400); 392 nm_wr_1(sc, 0x400, x | 2); 393 printf("%s: misc int 1\n", sc->dev.dv_xname); 394 rv = 1; 395 } 396 if (status & sc->misc2int) { 397 status &= ~sc->misc2int; 398 nm_ackint(sc, sc->misc2int); 399 x = nm_rd_1(sc, 0x400); 400 nm_wr_1(sc, 0x400, x & ~2); 401 printf("%s: misc int 2\n", sc->dev.dv_xname); 402 rv = 1; 403 } 404 if (status) { 405 status &= ~sc->misc2int; 406 nm_ackint(sc, sc->misc2int); 407 printf("%s: unknown int\n", sc->dev.dv_xname); 408 rv = 1; 409 } 410 411 return (rv); 412 } 413 414 /* -------------------------------------------------------------------- */ 415 416 /* 417 * Probe and attach the card 418 */ 419 420 static int 421 nm_init(struct neo_softc *sc) 422 { 423 u_int32_t ofs, i; 424 425 switch (sc->type) { 426 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 427 sc->ac97_base = NM_MIXER_OFFSET; 428 sc->ac97_status = NM_MIXER_STATUS_OFFSET; 429 sc->ac97_busy = NM_MIXER_READY_MASK; 430 431 sc->buftop = 2560 * 1024; 432 433 sc->irsz = 2; 434 sc->playint = NM_PLAYBACK_INT; 435 sc->recint = NM_RECORD_INT; 436 sc->misc1int = NM_MISC_INT_1; 437 sc->misc2int = NM_MISC_INT_2; 438 break; 439 440 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 441 sc->ac97_base = NM_MIXER_OFFSET; 442 sc->ac97_status = NM2_MIXER_STATUS_OFFSET; 443 sc->ac97_busy = NM2_MIXER_READY_MASK; 444 445 sc->buftop = (nm_rd_2(sc, 0xa0b) ? 6144 : 4096) * 1024; 446 447 sc->irsz = 4; 448 sc->playint = NM2_PLAYBACK_INT; 449 sc->recint = NM2_RECORD_INT; 450 sc->misc1int = NM2_MISC_INT_1; 451 sc->misc2int = NM2_MISC_INT_2; 452 break; 453 #ifdef DIAGNOSTIC 454 default: 455 panic("nm_init: impossible"); 456 #endif 457 } 458 459 sc->badintr = 0; 460 ofs = sc->buftop - 0x0400; 461 sc->buftop -= 0x1400; 462 463 if ((nm_rdbuf_4(sc, ofs) & NM_SIG_MASK) == NM_SIGNATURE) { 464 i = nm_rdbuf_4(sc, ofs + 4); 465 if (i != 0 && i != 0xffffffff) 466 sc->buftop = i; 467 } 468 469 sc->cbuf = sc->buftop - NM_MAX_COEFFICIENT; 470 sc->rbuf = sc->cbuf - NM_BUFFSIZE; 471 sc->pbuf = sc->rbuf - NM_BUFFSIZE; 472 sc->acbuf = sc->pbuf - (NM_TOTAL_COEFF_COUNT * 4); 473 474 sc->buf_vaddr = (vaddr_t) bus_space_vaddr(sc->bufiot, sc->bufioh); 475 sc->rbuf_vaddr = sc->buf_vaddr + sc->rbuf; 476 sc->pbuf_vaddr = sc->buf_vaddr + sc->pbuf; 477 478 sc->rbuf_pciaddr = sc->buf_pciaddr + sc->rbuf; 479 sc->pbuf_pciaddr = sc->buf_pciaddr + sc->pbuf; 480 481 nm_wr_1(sc, 0, 0x11); 482 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0); 483 nm_wr_2(sc, 0x214, 0); 484 485 return 0; 486 } 487 488 int 489 neo_match(struct device *parent, struct cfdata *match, void *aux) 490 { 491 struct pci_attach_args *pa = aux; 492 pcireg_t subdev; 493 494 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_NEOMAGIC) 495 return (0); 496 497 subdev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 498 499 switch (PCI_PRODUCT(pa->pa_id)) { 500 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 501 /* 502 * We have to weed-out the non-AC'97 versions of 503 * the chip (i.e. the ones that are known to work 504 * in WSS emulation mode), as they won't work with 505 * this driver. 506 */ 507 switch (PCI_VENDOR(subdev)) { 508 case PCI_VENDOR_DELL: 509 switch (PCI_PRODUCT(subdev)) { 510 case 0x008f: 511 return (0); 512 } 513 break; 514 515 case PCI_VENDOR_HP: 516 switch (PCI_PRODUCT(subdev)) { 517 case 0x0007: 518 return (0); 519 } 520 break; 521 522 case PCI_VENDOR_IBM: 523 switch (PCI_PRODUCT(subdev)) { 524 case 0x00dd: 525 return (0); 526 } 527 break; 528 } 529 return (1); 530 531 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 532 return (1); 533 } 534 535 return (0); 536 } 537 538 void 539 neo_power(int why, void *addr) 540 { 541 struct neo_softc *sc = (struct neo_softc *)addr; 542 543 if (why == PWR_RESUME) { 544 nm_init(sc); 545 (sc->codec_if->vtbl->restore_ports)(sc->codec_if); 546 } 547 } 548 549 void 550 neo_attach(struct device *parent, struct device *self, void *aux) 551 { 552 struct neo_softc *sc = (struct neo_softc *)self; 553 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 554 pci_chipset_tag_t pc = pa->pa_pc; 555 char const *intrstr; 556 pci_intr_handle_t ih; 557 pcireg_t csr; 558 int error; 559 560 sc->type = PCI_PRODUCT(pa->pa_id); 561 562 printf(": NeoMagic 256%s audio\n", 563 sc->type == PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU ? "AV" : "ZX"); 564 565 /* Map I/O register */ 566 if (pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_MEM, 0, 567 &sc->bufiot, &sc->bufioh, &sc->buf_pciaddr, NULL)) { 568 printf("%s: can't map buffer\n", sc->dev.dv_xname); 569 return; 570 } 571 572 if (pci_mapreg_map(pa, PCI_MAPREG_START + 4, PCI_MAPREG_TYPE_MEM, 573 BUS_SPACE_MAP_LINEAR, &sc->regiot, &sc->regioh, NULL, NULL)) { 574 printf("%s: can't map registers\n", sc->dev.dv_xname); 575 return; 576 } 577 578 /* Map and establish the interrupt. */ 579 if (pci_intr_map(pa, &ih)) { 580 printf("%s: couldn't map interrupt\n", sc->dev.dv_xname); 581 return; 582 } 583 584 intrstr = pci_intr_string(pc, ih); 585 sc->ih = pci_intr_establish(pc, ih, IPL_AUDIO, neo_intr, sc); 586 587 if (sc->ih == NULL) { 588 printf("%s: couldn't establish interrupt", 589 sc->dev.dv_xname); 590 if (intrstr != NULL) 591 printf(" at %s", intrstr); 592 printf("\n"); 593 return; 594 } 595 printf("%s: interruping at %s\n", sc->dev.dv_xname, intrstr); 596 597 if ((error = nm_init(sc)) != 0) 598 return; 599 600 /* Enable the device. */ 601 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 602 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 603 csr | PCI_COMMAND_MASTER_ENABLE); 604 605 sc->host_if.arg = sc; 606 607 sc->host_if.attach = neo_attach_codec; 608 sc->host_if.read = neo_read_codec; 609 sc->host_if.write = neo_write_codec; 610 sc->host_if.reset = neo_reset_codec; 611 sc->host_if.flags = neo_flags_codec; 612 613 if ((error = ac97_attach(&sc->host_if)) != 0) 614 return; 615 616 sc->powerhook = powerhook_establish(neo_power, sc); 617 618 audio_attach_mi(&neo_hw_if, sc, &sc->dev); 619 } 620 621 int 622 neo_read_codec(void *v, u_int8_t a, u_int16_t *d) 623 { 624 struct neo_softc *sc = v; 625 626 if (!nm_waitcd(sc)) { 627 *d = nm_rd_2(sc, sc->ac97_base + a); 628 DELAY(1000); 629 return 0; 630 } 631 632 return (ENXIO); 633 } 634 635 636 int 637 neo_write_codec(void *v, u_int8_t a, u_int16_t d) 638 { 639 struct neo_softc *sc = v; 640 int cnt = 3; 641 642 if (!nm_waitcd(sc)) { 643 while (cnt-- > 0) { 644 nm_wr_2(sc, sc->ac97_base + a, d); 645 if (!nm_waitcd(sc)) { 646 DELAY(1000); 647 return (0); 648 } 649 } 650 } 651 652 return (ENXIO); 653 } 654 655 int 656 neo_attach_codec(void *v, struct ac97_codec_if *codec_if) 657 { 658 struct neo_softc *sc = v; 659 660 sc->codec_if = codec_if; 661 return (0); 662 } 663 664 void 665 neo_reset_codec(void *v) 666 { 667 struct neo_softc *sc = v; 668 669 nm_wr_1(sc, 0x6c0, 0x01); 670 nm_wr_1(sc, 0x6cc, 0x87); 671 nm_wr_1(sc, 0x6cc, 0x80); 672 nm_wr_1(sc, 0x6cc, 0x00); 673 } 674 675 enum ac97_host_flags 676 neo_flags_codec(void *v) 677 { 678 679 return (AC97_HOST_DONT_READ); 680 } 681 682 int 683 neo_open(void *addr, int flags) 684 { 685 686 return (0); 687 } 688 689 /* 690 * Close function is called at splaudio(). 691 */ 692 void 693 neo_close(void *addr) 694 { 695 struct neo_softc *sc = addr; 696 697 neo_halt_output(sc); 698 neo_halt_input(sc); 699 700 sc->pintr = 0; 701 sc->rintr = 0; 702 } 703 704 int 705 neo_query_encoding(void *addr, struct audio_encoding *fp) 706 { 707 708 switch (fp->index) { 709 case 0: 710 strcpy(fp->name, AudioEulinear); 711 fp->encoding = AUDIO_ENCODING_ULINEAR; 712 fp->precision = 8; 713 fp->flags = 0; 714 return (0); 715 case 1: 716 strcpy(fp->name, AudioEmulaw); 717 fp->encoding = AUDIO_ENCODING_ULAW; 718 fp->precision = 8; 719 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 720 return (0); 721 case 2: 722 strcpy(fp->name, AudioEalaw); 723 fp->encoding = AUDIO_ENCODING_ALAW; 724 fp->precision = 8; 725 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 726 return (0); 727 case 3: 728 strcpy(fp->name, AudioEslinear); 729 fp->encoding = AUDIO_ENCODING_SLINEAR; 730 fp->precision = 8; 731 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 732 return (0); 733 case 4: 734 strcpy(fp->name, AudioEslinear_le); 735 fp->encoding = AUDIO_ENCODING_SLINEAR_LE; 736 fp->precision = 16; 737 fp->flags = 0; 738 return (0); 739 case 5: 740 strcpy(fp->name, AudioEulinear_le); 741 fp->encoding = AUDIO_ENCODING_ULINEAR_LE; 742 fp->precision = 16; 743 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 744 return (0); 745 case 6: 746 strcpy(fp->name, AudioEslinear_be); 747 fp->encoding = AUDIO_ENCODING_SLINEAR_BE; 748 fp->precision = 16; 749 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 750 return (0); 751 case 7: 752 strcpy(fp->name, AudioEulinear_be); 753 fp->encoding = AUDIO_ENCODING_ULINEAR_BE; 754 fp->precision = 16; 755 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 756 return (0); 757 default: 758 return (EINVAL); 759 } 760 } 761 762 /* Todo: don't commit settings to card until we've verified all parameters */ 763 int 764 neo_set_params(void *addr, int setmode, int usemode, struct audio_params *play, 765 struct audio_params *rec) 766 { 767 struct neo_softc *sc = addr; 768 u_int32_t base; 769 u_int8_t x; 770 int mode; 771 struct audio_params *p; 772 773 for (mode = AUMODE_RECORD; mode != -1; 774 mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) { 775 if ((setmode & mode) == 0) 776 continue; 777 778 p = mode == AUMODE_PLAY ? play : rec; 779 780 if (p == NULL) continue; 781 782 for (x = 0; x < 8; x++) { 783 if (p->sample_rate < 784 (samplerates[x] + samplerates[x + 1]) / 2) 785 break; 786 } 787 if (x == 8) 788 return (EINVAL); 789 790 p->sample_rate = samplerates[x]; 791 nm_loadcoeff(sc, mode, x); 792 793 x <<= 4; 794 x &= NM_RATE_MASK; 795 if (p->precision == 16) 796 x |= NM_RATE_BITS_16; 797 if (p->channels == 2) 798 x |= NM_RATE_STEREO; 799 800 base = (mode == AUMODE_PLAY)? 801 NM_PLAYBACK_REG_OFFSET : NM_RECORD_REG_OFFSET; 802 nm_wr_1(sc, base + NM_RATE_REG_OFFSET, x); 803 804 p->factor = 1; 805 p->sw_code = 0; 806 switch (p->encoding) { 807 case AUDIO_ENCODING_SLINEAR_BE: 808 if (p->precision == 16) 809 p->sw_code = swap_bytes; 810 else 811 p->sw_code = change_sign8; 812 break; 813 case AUDIO_ENCODING_SLINEAR_LE: 814 if (p->precision != 16) 815 p->sw_code = change_sign8; 816 break; 817 case AUDIO_ENCODING_ULINEAR_BE: 818 if (p->precision == 16) { 819 if (mode == AUMODE_PLAY) 820 p->sw_code = 821 swap_bytes_change_sign16_le; 822 else 823 p->sw_code = 824 change_sign16_swap_bytes_le; 825 } 826 break; 827 case AUDIO_ENCODING_ULINEAR_LE: 828 if (p->precision == 16) 829 p->sw_code = change_sign16_le; 830 break; 831 case AUDIO_ENCODING_ULAW: 832 if (mode == AUMODE_PLAY) { 833 p->factor = 2; 834 p->sw_code = mulaw_to_slinear16_le; 835 } else 836 p->sw_code = ulinear8_to_mulaw; 837 break; 838 case AUDIO_ENCODING_ALAW: 839 if (mode == AUMODE_PLAY) { 840 p->factor = 2; 841 p->sw_code = alaw_to_slinear16_le; 842 } else 843 p->sw_code = ulinear8_to_alaw; 844 break; 845 default: 846 return (EINVAL); 847 } 848 } 849 850 851 return (0); 852 } 853 854 int 855 neo_round_blocksize(void *addr, int blk) 856 { 857 858 return (NM_BUFFSIZE / 2); 859 } 860 861 int 862 neo_trigger_output(void *addr, void *start, void *end, int blksize, 863 void (*intr)(void *), void *arg, struct audio_params *param) 864 { 865 struct neo_softc *sc = addr; 866 int ssz; 867 868 sc->pintr = intr; 869 sc->parg = arg; 870 871 ssz = (param->precision * param->factor == 16) ? 2 : 1; 872 if (param->channels == 2) 873 ssz <<= 1; 874 875 sc->pbufsize = ((char*)end - (char *)start); 876 sc->pblksize = blksize; 877 sc->pwmark = blksize; 878 879 nm_wr_4(sc, NM_PBUFFER_START, sc->pbuf); 880 nm_wr_4(sc, NM_PBUFFER_END, sc->pbuf + sc->pbufsize - ssz); 881 nm_wr_4(sc, NM_PBUFFER_CURRP, sc->pbuf); 882 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark); 883 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, NM_PLAYBACK_FREERUN | 884 NM_PLAYBACK_ENABLE_FLAG); 885 nm_wr_2(sc, NM_AUDIO_MUTE_REG, 0); 886 887 return (0); 888 } 889 890 int 891 neo_trigger_input(void *addr, void *start, void *end, int blksize, 892 void (*intr)(void *), void *arg, struct audio_params *param) 893 { 894 struct neo_softc *sc = addr; 895 int ssz; 896 897 sc->rintr = intr; 898 sc->rarg = arg; 899 900 ssz = (param->precision * param->factor == 16) ? 2 : 1; 901 if (param->channels == 2) 902 ssz <<= 1; 903 904 sc->rbufsize = ((char*)end - (char *)start); 905 sc->rblksize = blksize; 906 sc->rwmark = blksize; 907 908 nm_wr_4(sc, NM_RBUFFER_START, sc->rbuf); 909 nm_wr_4(sc, NM_RBUFFER_END, sc->rbuf + sc->rbufsize); 910 nm_wr_4(sc, NM_RBUFFER_CURRP, sc->rbuf); 911 nm_wr_4(sc, NM_RBUFFER_WMARK, sc->rbuf + sc->rwmark); 912 nm_wr_1(sc, NM_RECORD_ENABLE_REG, NM_RECORD_FREERUN | 913 NM_RECORD_ENABLE_FLAG); 914 915 return (0); 916 } 917 918 int 919 neo_halt_output(void *addr) 920 { 921 struct neo_softc *sc = (struct neo_softc *)addr; 922 923 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, 0); 924 nm_wr_2(sc, NM_AUDIO_MUTE_REG, NM_AUDIO_MUTE_BOTH); 925 926 return (0); 927 } 928 929 int 930 neo_halt_input(void *addr) 931 { 932 struct neo_softc *sc = (struct neo_softc *)addr; 933 934 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0); 935 936 return (0); 937 } 938 939 int 940 neo_getdev(void *addr, struct audio_device *retp) 941 { 942 943 *retp = neo_device; 944 return (0); 945 } 946 947 int 948 neo_mixer_set_port(void *addr, mixer_ctrl_t *cp) 949 { 950 struct neo_softc *sc = addr; 951 952 return ((sc->codec_if->vtbl->mixer_set_port)(sc->codec_if, cp)); 953 } 954 955 int 956 neo_mixer_get_port(void *addr, mixer_ctrl_t *cp) 957 { 958 struct neo_softc *sc = addr; 959 960 return ((sc->codec_if->vtbl->mixer_get_port)(sc->codec_if, cp)); 961 } 962 963 int 964 neo_query_devinfo(void *addr, mixer_devinfo_t *dip) 965 { 966 struct neo_softc *sc = addr; 967 968 return ((sc->codec_if->vtbl->query_devinfo)(sc->codec_if, dip)); 969 } 970 971 void * 972 neo_malloc(void *addr, int direction, size_t size, int pool, int flags) 973 { 974 struct neo_softc *sc = addr; 975 void *rv = NULL; 976 977 switch (direction) { 978 case AUMODE_PLAY: 979 if (sc->pbuf_allocated == 0) { 980 rv = (void *) sc->pbuf_vaddr; 981 sc->pbuf_allocated = 1; 982 } 983 break; 984 985 case AUMODE_RECORD: 986 if (sc->rbuf_allocated == 0) { 987 rv = (void *) sc->rbuf_vaddr; 988 sc->rbuf_allocated = 1; 989 } 990 break; 991 } 992 993 return (rv); 994 } 995 996 void 997 neo_free(void *addr, void *ptr, int pool) 998 { 999 struct neo_softc *sc = addr; 1000 vaddr_t v = (vaddr_t) ptr; 1001 1002 if (v == sc->pbuf_vaddr) 1003 sc->pbuf_allocated = 0; 1004 else if (v == sc->rbuf_vaddr) 1005 sc->rbuf_allocated = 0; 1006 else 1007 printf("neo_free: bad address %p\n", ptr); 1008 } 1009 1010 size_t 1011 neo_round_buffersize(void *addr, int direction, size_t size) 1012 { 1013 1014 return (NM_BUFFSIZE); 1015 } 1016 1017 paddr_t 1018 neo_mappage(void *addr, void *mem, off_t off, int prot) 1019 { 1020 struct neo_softc *sc = addr; 1021 vaddr_t v = (vaddr_t) mem; 1022 bus_addr_t pciaddr; 1023 1024 if (v == sc->pbuf_vaddr) 1025 pciaddr = sc->pbuf_pciaddr; 1026 else if (v == sc->rbuf_vaddr) 1027 pciaddr = sc->rbuf_pciaddr; 1028 else 1029 return (-1); 1030 1031 return (bus_space_mmap(sc->bufiot, pciaddr, off, prot, 1032 BUS_SPACE_MAP_LINEAR)); 1033 } 1034 1035 int 1036 neo_get_props(void *addr) 1037 { 1038 1039 return (AUDIO_PROP_INDEPENDENT | AUDIO_PROP_MMAP | 1040 AUDIO_PROP_FULLDUPLEX); 1041 } 1042
Indexes created Thu Oct 02 10:09:58 GMT 2025