neo.c revision 1.3
1 /* $NetBSD: neo.c,v 1.3 2000/11/05 16:24:45 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/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 * Add mmap support. 111 * 112 * Figure out interaction with video stuff (look at Xfree86 driver?) 113 * 114 * Power management (neoactivate) 115 * 116 * Fix detect of Neo devices that don't work this driver (see neo_attach) 117 * 118 * Figure out how to shrink that huge table neo-coeff.h 119 */ 120 121 #define NM_BUFFSIZE 16384 122 123 /* device private data */ 124 struct neo_softc { 125 struct device dev; 126 127 bus_space_tag_t bufiot; 128 bus_space_handle_t bufioh; 129 130 bus_space_tag_t regiot; 131 bus_space_handle_t regioh; 132 133 u_int32_t type; 134 void *ih; 135 136 void (*pintr)(void *); /* dma completion intr handler */ 137 void *parg; /* arg for intr() */ 138 139 void (*rintr)(void *); /* dma completion intr handler */ 140 void *rarg; /* arg for intr() */ 141 142 vaddr_t buf_vaddr; 143 vaddr_t rbuf_vaddr; 144 vaddr_t pbuf_vaddr; 145 int pbuf_allocated; 146 int rbuf_allocated; 147 148 bus_addr_t buf_pciaddr; 149 bus_addr_t rbuf_pciaddr; 150 bus_addr_t pbuf_pciaddr; 151 152 u_int32_t ac97_base, ac97_status, ac97_busy; 153 u_int32_t buftop, pbuf, rbuf, cbuf, acbuf; 154 u_int32_t playint, recint, misc1int, misc2int; 155 u_int32_t irsz, badintr; 156 157 u_int32_t pbufsize; 158 u_int32_t rbufsize; 159 160 u_int32_t pblksize; 161 u_int32_t rblksize; 162 163 u_int32_t pwmark; 164 u_int32_t rwmark; 165 166 struct ac97_codec_if *codec_if; 167 struct ac97_host_if host_if; 168 }; 169 170 /* -------------------------------------------------------------------- */ 171 172 /* 173 * prototypes 174 */ 175 176 static int nm_waitcd(struct neo_softc *sc); 177 static int nm_loadcoeff(struct neo_softc *sc, int dir, int num); 178 static int nm_init(struct neo_softc *); 179 180 int neo_match(struct device *, struct cfdata *, void *); 181 void neo_attach(struct device *, struct device *, void *); 182 int neo_intr(void *); 183 184 int neo_open(void *, int); 185 void neo_close(void *); 186 int neo_query_encoding(void *, struct audio_encoding *); 187 int neo_set_params(void *, int, int, struct audio_params *, 188 struct audio_params *); 189 int neo_round_blocksize(void *, int); 190 int neo_trigger_output(void *, void *, void *, int, void (*)(void *), 191 void *, struct audio_params *); 192 int neo_trigger_input(void *, void *, void *, int, void (*)(void *), 193 void *, struct audio_params *); 194 int neo_halt_output(void *); 195 int neo_halt_input(void *); 196 int neo_getdev(void *, struct audio_device *); 197 int neo_mixer_set_port(void *, mixer_ctrl_t *); 198 int neo_mixer_get_port(void *, mixer_ctrl_t *); 199 int neo_attach_codec(void *sc, struct ac97_codec_if *); 200 int neo_read_codec(void *sc, u_int8_t a, u_int16_t *d); 201 int neo_write_codec(void *sc, u_int8_t a, u_int16_t d); 202 void neo_reset_codec(void *sc); 203 enum ac97_host_flags neo_flags_codec(void *sc); 204 int neo_query_devinfo(void *, mixer_devinfo_t *); 205 void *neo_malloc(void *, int, size_t, int, int); 206 void neo_free(void *, void *, int); 207 size_t neo_round_buffersize(void *, int, size_t); 208 paddr_t neo_mappage(void *, void *, off_t, int); 209 int neo_get_props(void *); 210 void neo_set_mixer(struct neo_softc *sc, int a, int d); 211 212 struct cfattach neo_ca = { 213 sizeof(struct neo_softc), neo_match, neo_attach 214 }; 215 216 struct audio_device neo_device = { 217 "NeoMagic 256", 218 "", 219 "neo" 220 }; 221 222 /* The actual rates supported by the card. */ 223 static const int samplerates[9] = { 224 8000, 225 11025, 226 16000, 227 22050, 228 24000, 229 32000, 230 44100, 231 48000, 232 99999999 233 }; 234 235 /* -------------------------------------------------------------------- */ 236 237 struct audio_hw_if neo_hw_if = { 238 neo_open, 239 neo_close, 240 NULL, /* drain */ 241 neo_query_encoding, 242 neo_set_params, 243 neo_round_blocksize, 244 NULL, /* commit_setting */ 245 NULL, /* init_output */ 246 NULL, /* init_input */ 247 NULL, /* start_output */ 248 NULL, /* start_input */ 249 neo_halt_output, 250 neo_halt_input, 251 NULL, /* speaker_ctl */ 252 neo_getdev, 253 NULL, /* getfd */ 254 neo_mixer_set_port, 255 neo_mixer_get_port, 256 neo_query_devinfo, 257 neo_malloc, 258 neo_free, 259 neo_round_buffersize, 260 neo_mappage, 261 neo_get_props, 262 neo_trigger_output, 263 neo_trigger_input, 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 } 521 return (1); 522 523 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 524 return (1); 525 } 526 527 return (0); 528 } 529 530 void 531 neo_attach(struct device *parent, struct device *self, void *aux) 532 { 533 struct neo_softc *sc = (struct neo_softc *)self; 534 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 535 pci_chipset_tag_t pc = pa->pa_pc; 536 char const *intrstr; 537 pci_intr_handle_t ih; 538 pcireg_t csr; 539 int error; 540 541 sc->type = PCI_PRODUCT(pa->pa_id); 542 543 printf(": NeoMagic 256%s audio\n", 544 sc->type == PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU ? "AV" : "ZX"); 545 546 /* Map I/O register */ 547 if (pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_MEM, 0, 548 &sc->bufiot, &sc->bufioh, &sc->buf_pciaddr, NULL)) { 549 printf("%s: can't map buffer\n", sc->dev.dv_xname); 550 return; 551 } 552 553 if (pci_mapreg_map(pa, PCI_MAPREG_START + 4, PCI_MAPREG_TYPE_MEM, 0, 554 &sc->regiot, &sc->regioh, NULL, NULL)) { 555 printf("%s: can't map registers\n", sc->dev.dv_xname); 556 return; 557 } 558 559 /* Map and establish the interrupt. */ 560 if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, 561 pa->pa_intrline, &ih)) { 562 printf("%s: couldn't map interrupt\n", sc->dev.dv_xname); 563 return; 564 } 565 566 intrstr = pci_intr_string(pc, ih); 567 sc->ih = pci_intr_establish(pc, ih, IPL_AUDIO, neo_intr, sc); 568 569 if (sc->ih == NULL) { 570 printf("%s: couldn't establish interrupt", 571 sc->dev.dv_xname); 572 if (intrstr != NULL) 573 printf(" at %s", intrstr); 574 printf("\n"); 575 return; 576 } 577 printf("%s: interruping at %s\n", sc->dev.dv_xname, intrstr); 578 579 if ((error = nm_init(sc)) != 0) 580 return; 581 582 /* Enable the device. */ 583 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 584 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 585 csr | PCI_COMMAND_MASTER_ENABLE); 586 587 sc->host_if.arg = sc; 588 589 sc->host_if.attach = neo_attach_codec; 590 sc->host_if.read = neo_read_codec; 591 sc->host_if.write = neo_write_codec; 592 sc->host_if.reset = neo_reset_codec; 593 sc->host_if.flags = neo_flags_codec; 594 595 if ((error = ac97_attach(&sc->host_if)) != 0) 596 return; 597 598 audio_attach_mi(&neo_hw_if, sc, &sc->dev); 599 } 600 601 int 602 neo_read_codec(void *v, u_int8_t a, u_int16_t *d) 603 { 604 struct neo_softc *sc = v; 605 606 if (!nm_waitcd(sc)) { 607 *d = nm_rd_2(sc, sc->ac97_base + a); 608 DELAY(1000); 609 return 0; 610 } 611 612 return (ENXIO); 613 } 614 615 616 int 617 neo_write_codec(void *v, u_int8_t a, u_int16_t d) 618 { 619 struct neo_softc *sc = v; 620 int cnt = 3; 621 622 if (!nm_waitcd(sc)) { 623 while (cnt-- > 0) { 624 nm_wr_2(sc, sc->ac97_base + a, d); 625 if (!nm_waitcd(sc)) { 626 DELAY(1000); 627 return (0); 628 } 629 } 630 } 631 632 return (ENXIO); 633 } 634 635 int 636 neo_attach_codec(void *v, struct ac97_codec_if *codec_if) 637 { 638 struct neo_softc *sc = v; 639 640 sc->codec_if = codec_if; 641 return (0); 642 } 643 644 void 645 neo_reset_codec(void *v) 646 { 647 struct neo_softc *sc = v; 648 649 nm_wr_1(sc, 0x6c0, 0x01); 650 nm_wr_1(sc, 0x6cc, 0x87); 651 nm_wr_1(sc, 0x6cc, 0x80); 652 nm_wr_1(sc, 0x6cc, 0x00); 653 } 654 655 enum ac97_host_flags 656 neo_flags_codec(void *v) 657 { 658 659 return (AC97_HOST_DONT_READ); 660 } 661 662 int 663 neo_open(void *addr, int flags) 664 { 665 666 return (0); 667 } 668 669 /* 670 * Close function is called at splaudio(). 671 */ 672 void 673 neo_close(void *addr) 674 { 675 struct neo_softc *sc = addr; 676 677 neo_halt_output(sc); 678 neo_halt_input(sc); 679 680 sc->pintr = 0; 681 sc->rintr = 0; 682 } 683 684 int 685 neo_query_encoding(void *addr, struct audio_encoding *fp) 686 { 687 688 switch (fp->index) { 689 case 0: 690 strcpy(fp->name, AudioEulinear); 691 fp->encoding = AUDIO_ENCODING_ULINEAR; 692 fp->precision = 8; 693 fp->flags = 0; 694 return (0); 695 case 1: 696 strcpy(fp->name, AudioEmulaw); 697 fp->encoding = AUDIO_ENCODING_ULAW; 698 fp->precision = 8; 699 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 700 return (0); 701 case 2: 702 strcpy(fp->name, AudioEalaw); 703 fp->encoding = AUDIO_ENCODING_ALAW; 704 fp->precision = 8; 705 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 706 return (0); 707 case 3: 708 strcpy(fp->name, AudioEslinear); 709 fp->encoding = AUDIO_ENCODING_SLINEAR; 710 fp->precision = 8; 711 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 712 return (0); 713 case 4: 714 strcpy(fp->name, AudioEslinear_le); 715 fp->encoding = AUDIO_ENCODING_SLINEAR_LE; 716 fp->precision = 16; 717 fp->flags = 0; 718 return (0); 719 case 5: 720 strcpy(fp->name, AudioEulinear_le); 721 fp->encoding = AUDIO_ENCODING_ULINEAR_LE; 722 fp->precision = 16; 723 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 724 return (0); 725 case 6: 726 strcpy(fp->name, AudioEslinear_be); 727 fp->encoding = AUDIO_ENCODING_SLINEAR_BE; 728 fp->precision = 16; 729 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 730 return (0); 731 case 7: 732 strcpy(fp->name, AudioEulinear_be); 733 fp->encoding = AUDIO_ENCODING_ULINEAR_BE; 734 fp->precision = 16; 735 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 736 return (0); 737 default: 738 return (EINVAL); 739 } 740 } 741 742 /* Todo: don't commit settings to card until we've verified all parameters */ 743 int 744 neo_set_params(void *addr, int setmode, int usemode, struct audio_params *play, 745 struct audio_params *rec) 746 { 747 struct neo_softc *sc = addr; 748 u_int32_t base; 749 u_int8_t x; 750 int mode; 751 struct audio_params *p; 752 753 for (mode = AUMODE_RECORD; mode != -1; 754 mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) { 755 if ((setmode & mode) == 0) 756 continue; 757 758 p = mode == AUMODE_PLAY ? play : rec; 759 760 if (p == NULL) continue; 761 762 for (x = 0; x < 8; x++) { 763 if (p->sample_rate < 764 (samplerates[x] + samplerates[x + 1]) / 2) 765 break; 766 } 767 if (x == 8) 768 return (EINVAL); 769 770 p->sample_rate = samplerates[x]; 771 nm_loadcoeff(sc, mode, x); 772 773 x <<= 4; 774 x &= NM_RATE_MASK; 775 if (p->precision == 16) 776 x |= NM_RATE_BITS_16; 777 if (p->channels == 2) 778 x |= NM_RATE_STEREO; 779 780 base = (mode == AUMODE_PLAY)? 781 NM_PLAYBACK_REG_OFFSET : NM_RECORD_REG_OFFSET; 782 nm_wr_1(sc, base + NM_RATE_REG_OFFSET, x); 783 784 p->factor = 1; 785 p->sw_code = 0; 786 switch (p->encoding) { 787 case AUDIO_ENCODING_SLINEAR_BE: 788 if (p->precision == 16) 789 p->sw_code = swap_bytes; 790 else 791 p->sw_code = change_sign8; 792 break; 793 case AUDIO_ENCODING_SLINEAR_LE: 794 if (p->precision != 16) 795 p->sw_code = change_sign8; 796 break; 797 case AUDIO_ENCODING_ULINEAR_BE: 798 if (p->precision == 16) { 799 if (mode == AUMODE_PLAY) 800 p->sw_code = 801 swap_bytes_change_sign16_le; 802 else 803 p->sw_code = 804 change_sign16_swap_bytes_le; 805 } 806 break; 807 case AUDIO_ENCODING_ULINEAR_LE: 808 if (p->precision == 16) 809 p->sw_code = change_sign16_le; 810 break; 811 case AUDIO_ENCODING_ULAW: 812 if (mode == AUMODE_PLAY) { 813 p->factor = 2; 814 p->sw_code = mulaw_to_slinear16_le; 815 } else 816 p->sw_code = ulinear8_to_mulaw; 817 break; 818 case AUDIO_ENCODING_ALAW: 819 if (mode == AUMODE_PLAY) { 820 p->factor = 2; 821 p->sw_code = alaw_to_slinear16_le; 822 } else 823 p->sw_code = ulinear8_to_alaw; 824 break; 825 default: 826 return (EINVAL); 827 } 828 } 829 830 831 return (0); 832 } 833 834 int 835 neo_round_blocksize(void *addr, int blk) 836 { 837 838 return (NM_BUFFSIZE / 2); 839 } 840 841 int 842 neo_trigger_output(void *addr, void *start, void *end, int blksize, 843 void (*intr)(void *), void *arg, struct audio_params *param) 844 { 845 struct neo_softc *sc = addr; 846 int ssz; 847 848 sc->pintr = intr; 849 sc->parg = arg; 850 851 ssz = (param->precision * param->factor == 16) ? 2 : 1; 852 if (param->channels == 2) 853 ssz <<= 1; 854 855 sc->pbufsize = ((char*)end - (char *)start); 856 sc->pblksize = blksize; 857 sc->pwmark = blksize; 858 859 nm_wr_4(sc, NM_PBUFFER_START, sc->pbuf); 860 nm_wr_4(sc, NM_PBUFFER_END, sc->pbuf + sc->pbufsize - ssz); 861 nm_wr_4(sc, NM_PBUFFER_CURRP, sc->pbuf); 862 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark); 863 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, NM_PLAYBACK_FREERUN | 864 NM_PLAYBACK_ENABLE_FLAG); 865 nm_wr_2(sc, NM_AUDIO_MUTE_REG, 0); 866 867 return (0); 868 } 869 870 int 871 neo_trigger_input(void *addr, void *start, void *end, int blksize, 872 void (*intr)(void *), void *arg, struct audio_params *param) 873 { 874 struct neo_softc *sc = addr; 875 int ssz; 876 877 sc->rintr = intr; 878 sc->rarg = arg; 879 880 ssz = (param->precision * param->factor == 16) ? 2 : 1; 881 if (param->channels == 2) 882 ssz <<= 1; 883 884 sc->rbufsize = ((char*)end - (char *)start); 885 sc->rblksize = blksize; 886 sc->rwmark = blksize; 887 888 nm_wr_4(sc, NM_RBUFFER_START, sc->rbuf); 889 nm_wr_4(sc, NM_RBUFFER_END, sc->rbuf + sc->rbufsize); 890 nm_wr_4(sc, NM_RBUFFER_CURRP, sc->rbuf); 891 nm_wr_4(sc, NM_RBUFFER_WMARK, sc->rbuf + sc->rwmark); 892 nm_wr_1(sc, NM_RECORD_ENABLE_REG, NM_RECORD_FREERUN | 893 NM_RECORD_ENABLE_FLAG); 894 895 return (0); 896 } 897 898 int 899 neo_halt_output(void *addr) 900 { 901 struct neo_softc *sc = (struct neo_softc *)addr; 902 903 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, 0); 904 nm_wr_2(sc, NM_AUDIO_MUTE_REG, NM_AUDIO_MUTE_BOTH); 905 906 return (0); 907 } 908 909 int 910 neo_halt_input(void *addr) 911 { 912 struct neo_softc *sc = (struct neo_softc *)addr; 913 914 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0); 915 916 return (0); 917 } 918 919 int 920 neo_getdev(void *addr, struct audio_device *retp) 921 { 922 923 *retp = neo_device; 924 return (0); 925 } 926 927 int 928 neo_mixer_set_port(void *addr, mixer_ctrl_t *cp) 929 { 930 struct neo_softc *sc = addr; 931 932 return ((sc->codec_if->vtbl->mixer_set_port)(sc->codec_if, cp)); 933 } 934 935 int 936 neo_mixer_get_port(void *addr, mixer_ctrl_t *cp) 937 { 938 struct neo_softc *sc = addr; 939 940 return ((sc->codec_if->vtbl->mixer_get_port)(sc->codec_if, cp)); 941 } 942 943 int 944 neo_query_devinfo(void *addr, mixer_devinfo_t *dip) 945 { 946 struct neo_softc *sc = addr; 947 948 return ((sc->codec_if->vtbl->query_devinfo)(sc->codec_if, dip)); 949 } 950 951 void * 952 neo_malloc(void *addr, int direction, size_t size, int pool, int flags) 953 { 954 struct neo_softc *sc = addr; 955 void *rv = NULL; 956 957 switch (direction) { 958 case AUMODE_PLAY: 959 if (sc->pbuf_allocated == 0) { 960 rv = (void *) sc->pbuf_vaddr; 961 sc->pbuf_allocated = 1; 962 } 963 break; 964 965 case AUMODE_RECORD: 966 if (sc->rbuf_allocated == 0) { 967 rv = (void *) sc->rbuf_vaddr; 968 sc->rbuf_allocated = 1; 969 } 970 break; 971 } 972 973 return (rv); 974 } 975 976 void 977 neo_free(void *addr, void *ptr, int pool) 978 { 979 struct neo_softc *sc = addr; 980 vaddr_t v = (vaddr_t) ptr; 981 982 if (v == sc->pbuf_vaddr) 983 sc->pbuf_allocated = 0; 984 else if (v == sc->rbuf_vaddr) 985 sc->rbuf_allocated = 0; 986 else 987 printf("neo_free: bad address %p\n", ptr); 988 } 989 990 size_t 991 neo_round_buffersize(void *addr, int direction, size_t size) 992 { 993 994 return (NM_BUFFSIZE); 995 } 996 997 paddr_t 998 neo_mappage(void *addr, void *mem, off_t off, int prot) 999 { 1000 struct neo_softc *sc = addr; 1001 vaddr_t v = (vaddr_t) mem; 1002 bus_addr_t pciaddr; 1003 1004 /* XXX Need new mapping code. */ 1005 1006 if (v == sc->pbuf_vaddr) 1007 pciaddr = sc->pbuf_pciaddr; 1008 else if (v == sc->rbuf_vaddr) 1009 pciaddr = sc->rbuf_pciaddr; 1010 else 1011 return (-1); 1012 1013 #ifdef __i386__ 1014 return (i386_btop(pciaddr + off)); 1015 #else 1016 return (-1); 1017 #endif 1018 } 1019 1020 int 1021 neo_get_props(void *addr) 1022 { 1023 1024 return (AUDIO_PROP_INDEPENDENT | AUDIO_PROP_MMAP | 1025 AUDIO_PROP_FULLDUPLEX); 1026 } 1027
Indexes created Thu Oct 02 10:09:58 GMT 2025