neo.c revision 1.4.2.2
1 /* $NetBSD: neo.c,v 1.4.2.2 2000/11/22 16:04:11 bouyer 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 }; 165 166 /* -------------------------------------------------------------------- */ 167 168 /* 169 * prototypes 170 */ 171 172 static int nm_waitcd(struct neo_softc *sc); 173 static int nm_loadcoeff(struct neo_softc *sc, int dir, int num); 174 static int nm_init(struct neo_softc *); 175 176 int neo_match(struct device *, struct cfdata *, void *); 177 void neo_attach(struct device *, struct device *, void *); 178 int neo_intr(void *); 179 180 int neo_open(void *, int); 181 void neo_close(void *); 182 int neo_query_encoding(void *, struct audio_encoding *); 183 int neo_set_params(void *, int, int, struct audio_params *, 184 struct audio_params *); 185 int neo_round_blocksize(void *, int); 186 int neo_trigger_output(void *, void *, void *, int, void (*)(void *), 187 void *, struct audio_params *); 188 int neo_trigger_input(void *, void *, void *, int, void (*)(void *), 189 void *, struct audio_params *); 190 int neo_halt_output(void *); 191 int neo_halt_input(void *); 192 int neo_getdev(void *, struct audio_device *); 193 int neo_mixer_set_port(void *, mixer_ctrl_t *); 194 int neo_mixer_get_port(void *, mixer_ctrl_t *); 195 int neo_attach_codec(void *sc, struct ac97_codec_if *); 196 int neo_read_codec(void *sc, u_int8_t a, u_int16_t *d); 197 int neo_write_codec(void *sc, u_int8_t a, u_int16_t d); 198 void neo_reset_codec(void *sc); 199 enum ac97_host_flags neo_flags_codec(void *sc); 200 int neo_query_devinfo(void *, mixer_devinfo_t *); 201 void *neo_malloc(void *, int, size_t, int, int); 202 void neo_free(void *, void *, int); 203 size_t neo_round_buffersize(void *, int, size_t); 204 paddr_t neo_mappage(void *, void *, off_t, int); 205 int neo_get_props(void *); 206 void neo_set_mixer(struct neo_softc *sc, int a, int d); 207 208 struct cfattach neo_ca = { 209 sizeof(struct neo_softc), neo_match, neo_attach 210 }; 211 212 struct audio_device neo_device = { 213 "NeoMagic 256", 214 "", 215 "neo" 216 }; 217 218 /* The actual rates supported by the card. */ 219 static const int samplerates[9] = { 220 8000, 221 11025, 222 16000, 223 22050, 224 24000, 225 32000, 226 44100, 227 48000, 228 99999999 229 }; 230 231 /* -------------------------------------------------------------------- */ 232 233 struct audio_hw_if neo_hw_if = { 234 neo_open, 235 neo_close, 236 NULL, /* drain */ 237 neo_query_encoding, 238 neo_set_params, 239 neo_round_blocksize, 240 NULL, /* commit_setting */ 241 NULL, /* init_output */ 242 NULL, /* init_input */ 243 NULL, /* start_output */ 244 NULL, /* start_input */ 245 neo_halt_output, 246 neo_halt_input, 247 NULL, /* speaker_ctl */ 248 neo_getdev, 249 NULL, /* getfd */ 250 neo_mixer_set_port, 251 neo_mixer_get_port, 252 neo_query_devinfo, 253 neo_malloc, 254 neo_free, 255 neo_round_buffersize, 256 neo_mappage, 257 neo_get_props, 258 neo_trigger_output, 259 neo_trigger_input, 260 }; 261 262 /* -------------------------------------------------------------------- */ 263 264 #define nm_rd_1(sc, regno) \ 265 bus_space_read_1((sc)->regiot, (sc)->regioh, (regno)) 266 267 #define nm_rd_2(sc, regno) \ 268 bus_space_read_2((sc)->regiot, (sc)->regioh, (regno)) 269 270 #define nm_rd_4(sc, regno) \ 271 bus_space_read_4((sc)->regiot, (sc)->regioh, (regno)) 272 273 #define nm_wr_1(sc, regno, val) \ 274 bus_space_write_1((sc)->regiot, (sc)->regioh, (regno), (val)) 275 276 #define nm_wr_2(sc, regno, val) \ 277 bus_space_write_2((sc)->regiot, (sc)->regioh, (regno), (val)) 278 279 #define nm_wr_4(sc, regno, val) \ 280 bus_space_write_4((sc)->regiot, (sc)->regioh, (regno), (val)) 281 282 #define nm_rdbuf_4(sc, regno) \ 283 bus_space_read_4((sc)->bufiot, (sc)->bufioh, (regno)) 284 285 #define nm_wrbuf_1(sc, regno, val) \ 286 bus_space_write_1((sc)->bufiot, (sc)->bufioh, (regno), (val)) 287 288 /* ac97 codec */ 289 static int 290 nm_waitcd(struct neo_softc *sc) 291 { 292 int cnt = 10; 293 int fail = 1; 294 295 while (cnt-- > 0) { 296 if (nm_rd_2(sc, sc->ac97_status) & sc->ac97_busy) 297 DELAY(100); 298 else { 299 fail = 0; 300 break; 301 } 302 } 303 return (fail); 304 } 305 306 307 static void 308 nm_ackint(struct neo_softc *sc, u_int32_t num) 309 { 310 311 switch (sc->type) { 312 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 313 nm_wr_2(sc, NM_INT_REG, num << 1); 314 break; 315 316 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 317 nm_wr_4(sc, NM_INT_REG, num); 318 break; 319 } 320 } 321 322 static int 323 nm_loadcoeff(struct neo_softc *sc, int dir, int num) 324 { 325 int ofs, sz, i; 326 u_int32_t addr; 327 328 addr = (dir == AUMODE_PLAY)? 0x01c : 0x21c; 329 if (dir == AUMODE_RECORD) 330 num += 8; 331 sz = coefficientSizes[num]; 332 ofs = 0; 333 while (num-- > 0) 334 ofs+= coefficientSizes[num]; 335 for (i = 0; i < sz; i++) 336 nm_wrbuf_1(sc, sc->cbuf + i, coefficients[ofs + i]); 337 nm_wr_4(sc, addr, sc->cbuf); 338 if (dir == AUMODE_PLAY) 339 sz--; 340 nm_wr_4(sc, addr + 4, sc->cbuf + sz); 341 return 0; 342 } 343 344 /* The interrupt handler */ 345 int 346 neo_intr(void *p) 347 { 348 struct neo_softc *sc = (struct neo_softc *)p; 349 int status, x, active; 350 int rv = 0; 351 352 active = (sc->pintr || sc->rintr); 353 status = (sc->irsz == 2) ? 354 nm_rd_2(sc, NM_INT_REG) : 355 nm_rd_4(sc, NM_INT_REG); 356 357 if (status & sc->playint) { 358 status &= ~sc->playint; 359 360 sc->pwmark += sc->pblksize; 361 sc->pwmark %= sc->pbufsize; 362 363 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark); 364 365 nm_ackint(sc, sc->playint); 366 367 if (sc->pintr) 368 (*sc->pintr)(sc->parg); 369 370 rv = 1; 371 } 372 if (status & sc->recint) { 373 status &= ~sc->recint; 374 375 sc->rwmark += sc->rblksize; 376 sc->rwmark %= sc->rbufsize; 377 378 nm_ackint(sc, sc->recint); 379 if (sc->rintr) 380 (*sc->rintr)(sc->rarg); 381 382 rv = 1; 383 } 384 if (status & sc->misc1int) { 385 status &= ~sc->misc1int; 386 nm_ackint(sc, sc->misc1int); 387 x = nm_rd_1(sc, 0x400); 388 nm_wr_1(sc, 0x400, x | 2); 389 printf("%s: misc int 1\n", sc->dev.dv_xname); 390 rv = 1; 391 } 392 if (status & sc->misc2int) { 393 status &= ~sc->misc2int; 394 nm_ackint(sc, sc->misc2int); 395 x = nm_rd_1(sc, 0x400); 396 nm_wr_1(sc, 0x400, x & ~2); 397 printf("%s: misc int 2\n", sc->dev.dv_xname); 398 rv = 1; 399 } 400 if (status) { 401 status &= ~sc->misc2int; 402 nm_ackint(sc, sc->misc2int); 403 printf("%s: unknown int\n", sc->dev.dv_xname); 404 rv = 1; 405 } 406 407 return (rv); 408 } 409 410 /* -------------------------------------------------------------------- */ 411 412 /* 413 * Probe and attach the card 414 */ 415 416 static int 417 nm_init(struct neo_softc *sc) 418 { 419 u_int32_t ofs, i; 420 421 switch (sc->type) { 422 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 423 sc->ac97_base = NM_MIXER_OFFSET; 424 sc->ac97_status = NM_MIXER_STATUS_OFFSET; 425 sc->ac97_busy = NM_MIXER_READY_MASK; 426 427 sc->buftop = 2560 * 1024; 428 429 sc->irsz = 2; 430 sc->playint = NM_PLAYBACK_INT; 431 sc->recint = NM_RECORD_INT; 432 sc->misc1int = NM_MISC_INT_1; 433 sc->misc2int = NM_MISC_INT_2; 434 break; 435 436 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 437 sc->ac97_base = NM_MIXER_OFFSET; 438 sc->ac97_status = NM2_MIXER_STATUS_OFFSET; 439 sc->ac97_busy = NM2_MIXER_READY_MASK; 440 441 sc->buftop = (nm_rd_2(sc, 0xa0b) ? 6144 : 4096) * 1024; 442 443 sc->irsz = 4; 444 sc->playint = NM2_PLAYBACK_INT; 445 sc->recint = NM2_RECORD_INT; 446 sc->misc1int = NM2_MISC_INT_1; 447 sc->misc2int = NM2_MISC_INT_2; 448 break; 449 #ifdef DIAGNOSTIC 450 default: 451 panic("nm_init: impossible"); 452 #endif 453 } 454 455 sc->badintr = 0; 456 ofs = sc->buftop - 0x0400; 457 sc->buftop -= 0x1400; 458 459 if ((nm_rdbuf_4(sc, ofs) & NM_SIG_MASK) == NM_SIGNATURE) { 460 i = nm_rdbuf_4(sc, ofs + 4); 461 if (i != 0 && i != 0xffffffff) 462 sc->buftop = i; 463 } 464 465 sc->cbuf = sc->buftop - NM_MAX_COEFFICIENT; 466 sc->rbuf = sc->cbuf - NM_BUFFSIZE; 467 sc->pbuf = sc->rbuf - NM_BUFFSIZE; 468 sc->acbuf = sc->pbuf - (NM_TOTAL_COEFF_COUNT * 4); 469 470 sc->buf_vaddr = (vaddr_t) bus_space_vaddr(sc->bufiot, sc->bufioh); 471 sc->rbuf_vaddr = sc->buf_vaddr + sc->rbuf; 472 sc->pbuf_vaddr = sc->buf_vaddr + sc->pbuf; 473 474 sc->rbuf_pciaddr = sc->buf_pciaddr + sc->rbuf; 475 sc->pbuf_pciaddr = sc->buf_pciaddr + sc->pbuf; 476 477 nm_wr_1(sc, 0, 0x11); 478 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0); 479 nm_wr_2(sc, 0x214, 0); 480 481 return 0; 482 } 483 484 int 485 neo_match(struct device *parent, struct cfdata *match, void *aux) 486 { 487 struct pci_attach_args *pa = aux; 488 pcireg_t subdev; 489 490 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_NEOMAGIC) 491 return (0); 492 493 subdev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 494 495 switch (PCI_PRODUCT(pa->pa_id)) { 496 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 497 /* 498 * We have to weed-out the non-AC'97 versions of 499 * the chip (i.e. the ones that are known to work 500 * in WSS emulation mode), as they won't work with 501 * this driver. 502 */ 503 switch (PCI_VENDOR(subdev)) { 504 case PCI_VENDOR_DELL: 505 switch (PCI_PRODUCT(subdev)) { 506 case 0x008f: 507 return (0); 508 } 509 break; 510 511 case PCI_VENDOR_HP: 512 switch (PCI_PRODUCT(subdev)) { 513 case 0x0007: 514 return (0); 515 } 516 } 517 return (1); 518 519 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 520 return (1); 521 } 522 523 return (0); 524 } 525 526 void 527 neo_attach(struct device *parent, struct device *self, void *aux) 528 { 529 struct neo_softc *sc = (struct neo_softc *)self; 530 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 531 pci_chipset_tag_t pc = pa->pa_pc; 532 char const *intrstr; 533 pci_intr_handle_t ih; 534 pcireg_t csr; 535 int error; 536 537 sc->type = PCI_PRODUCT(pa->pa_id); 538 539 printf(": NeoMagic 256%s audio\n", 540 sc->type == PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU ? "AV" : "ZX"); 541 542 /* Map I/O register */ 543 if (pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_MEM, 0, 544 &sc->bufiot, &sc->bufioh, &sc->buf_pciaddr, NULL)) { 545 printf("%s: can't map buffer\n", sc->dev.dv_xname); 546 return; 547 } 548 549 if (pci_mapreg_map(pa, PCI_MAPREG_START + 4, PCI_MAPREG_TYPE_MEM, 0, 550 &sc->regiot, &sc->regioh, NULL, NULL)) { 551 printf("%s: can't map registers\n", sc->dev.dv_xname); 552 return; 553 } 554 555 /* Map and establish the interrupt. */ 556 if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, 557 pa->pa_intrline, &ih)) { 558 printf("%s: couldn't map interrupt\n", sc->dev.dv_xname); 559 return; 560 } 561 562 intrstr = pci_intr_string(pc, ih); 563 sc->ih = pci_intr_establish(pc, ih, IPL_AUDIO, neo_intr, sc); 564 565 if (sc->ih == NULL) { 566 printf("%s: couldn't establish interrupt", 567 sc->dev.dv_xname); 568 if (intrstr != NULL) 569 printf(" at %s", intrstr); 570 printf("\n"); 571 return; 572 } 573 printf("%s: interruping at %s\n", sc->dev.dv_xname, intrstr); 574 575 if ((error = nm_init(sc)) != 0) 576 return; 577 578 /* Enable the device. */ 579 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 580 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 581 csr | PCI_COMMAND_MASTER_ENABLE); 582 583 sc->host_if.arg = sc; 584 585 sc->host_if.attach = neo_attach_codec; 586 sc->host_if.read = neo_read_codec; 587 sc->host_if.write = neo_write_codec; 588 sc->host_if.reset = neo_reset_codec; 589 sc->host_if.flags = neo_flags_codec; 590 591 if ((error = ac97_attach(&sc->host_if)) != 0) 592 return; 593 594 audio_attach_mi(&neo_hw_if, sc, &sc->dev); 595 } 596 597 int 598 neo_read_codec(void *v, u_int8_t a, u_int16_t *d) 599 { 600 struct neo_softc *sc = v; 601 602 if (!nm_waitcd(sc)) { 603 *d = nm_rd_2(sc, sc->ac97_base + a); 604 DELAY(1000); 605 return 0; 606 } 607 608 return (ENXIO); 609 } 610 611 612 int 613 neo_write_codec(void *v, u_int8_t a, u_int16_t d) 614 { 615 struct neo_softc *sc = v; 616 int cnt = 3; 617 618 if (!nm_waitcd(sc)) { 619 while (cnt-- > 0) { 620 nm_wr_2(sc, sc->ac97_base + a, d); 621 if (!nm_waitcd(sc)) { 622 DELAY(1000); 623 return (0); 624 } 625 } 626 } 627 628 return (ENXIO); 629 } 630 631 int 632 neo_attach_codec(void *v, struct ac97_codec_if *codec_if) 633 { 634 struct neo_softc *sc = v; 635 636 sc->codec_if = codec_if; 637 return (0); 638 } 639 640 void 641 neo_reset_codec(void *v) 642 { 643 struct neo_softc *sc = v; 644 645 nm_wr_1(sc, 0x6c0, 0x01); 646 nm_wr_1(sc, 0x6cc, 0x87); 647 nm_wr_1(sc, 0x6cc, 0x80); 648 nm_wr_1(sc, 0x6cc, 0x00); 649 } 650 651 enum ac97_host_flags 652 neo_flags_codec(void *v) 653 { 654 655 return (AC97_HOST_DONT_READ); 656 } 657 658 int 659 neo_open(void *addr, int flags) 660 { 661 662 return (0); 663 } 664 665 /* 666 * Close function is called at splaudio(). 667 */ 668 void 669 neo_close(void *addr) 670 { 671 struct neo_softc *sc = addr; 672 673 neo_halt_output(sc); 674 neo_halt_input(sc); 675 676 sc->pintr = 0; 677 sc->rintr = 0; 678 } 679 680 int 681 neo_query_encoding(void *addr, struct audio_encoding *fp) 682 { 683 684 switch (fp->index) { 685 case 0: 686 strcpy(fp->name, AudioEulinear); 687 fp->encoding = AUDIO_ENCODING_ULINEAR; 688 fp->precision = 8; 689 fp->flags = 0; 690 return (0); 691 case 1: 692 strcpy(fp->name, AudioEmulaw); 693 fp->encoding = AUDIO_ENCODING_ULAW; 694 fp->precision = 8; 695 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 696 return (0); 697 case 2: 698 strcpy(fp->name, AudioEalaw); 699 fp->encoding = AUDIO_ENCODING_ALAW; 700 fp->precision = 8; 701 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 702 return (0); 703 case 3: 704 strcpy(fp->name, AudioEslinear); 705 fp->encoding = AUDIO_ENCODING_SLINEAR; 706 fp->precision = 8; 707 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 708 return (0); 709 case 4: 710 strcpy(fp->name, AudioEslinear_le); 711 fp->encoding = AUDIO_ENCODING_SLINEAR_LE; 712 fp->precision = 16; 713 fp->flags = 0; 714 return (0); 715 case 5: 716 strcpy(fp->name, AudioEulinear_le); 717 fp->encoding = AUDIO_ENCODING_ULINEAR_LE; 718 fp->precision = 16; 719 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 720 return (0); 721 case 6: 722 strcpy(fp->name, AudioEslinear_be); 723 fp->encoding = AUDIO_ENCODING_SLINEAR_BE; 724 fp->precision = 16; 725 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 726 return (0); 727 case 7: 728 strcpy(fp->name, AudioEulinear_be); 729 fp->encoding = AUDIO_ENCODING_ULINEAR_BE; 730 fp->precision = 16; 731 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 732 return (0); 733 default: 734 return (EINVAL); 735 } 736 } 737 738 /* Todo: don't commit settings to card until we've verified all parameters */ 739 int 740 neo_set_params(void *addr, int setmode, int usemode, struct audio_params *play, 741 struct audio_params *rec) 742 { 743 struct neo_softc *sc = addr; 744 u_int32_t base; 745 u_int8_t x; 746 int mode; 747 struct audio_params *p; 748 749 for (mode = AUMODE_RECORD; mode != -1; 750 mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) { 751 if ((setmode & mode) == 0) 752 continue; 753 754 p = mode == AUMODE_PLAY ? play : rec; 755 756 if (p == NULL) continue; 757 758 for (x = 0; x < 8; x++) { 759 if (p->sample_rate < 760 (samplerates[x] + samplerates[x + 1]) / 2) 761 break; 762 } 763 if (x == 8) 764 return (EINVAL); 765 766 p->sample_rate = samplerates[x]; 767 nm_loadcoeff(sc, mode, x); 768 769 x <<= 4; 770 x &= NM_RATE_MASK; 771 if (p->precision == 16) 772 x |= NM_RATE_BITS_16; 773 if (p->channels == 2) 774 x |= NM_RATE_STEREO; 775 776 base = (mode == AUMODE_PLAY)? 777 NM_PLAYBACK_REG_OFFSET : NM_RECORD_REG_OFFSET; 778 nm_wr_1(sc, base + NM_RATE_REG_OFFSET, x); 779 780 p->factor = 1; 781 p->sw_code = 0; 782 switch (p->encoding) { 783 case AUDIO_ENCODING_SLINEAR_BE: 784 if (p->precision == 16) 785 p->sw_code = swap_bytes; 786 else 787 p->sw_code = change_sign8; 788 break; 789 case AUDIO_ENCODING_SLINEAR_LE: 790 if (p->precision != 16) 791 p->sw_code = change_sign8; 792 break; 793 case AUDIO_ENCODING_ULINEAR_BE: 794 if (p->precision == 16) { 795 if (mode == AUMODE_PLAY) 796 p->sw_code = 797 swap_bytes_change_sign16_le; 798 else 799 p->sw_code = 800 change_sign16_swap_bytes_le; 801 } 802 break; 803 case AUDIO_ENCODING_ULINEAR_LE: 804 if (p->precision == 16) 805 p->sw_code = change_sign16_le; 806 break; 807 case AUDIO_ENCODING_ULAW: 808 if (mode == AUMODE_PLAY) { 809 p->factor = 2; 810 p->sw_code = mulaw_to_slinear16_le; 811 } else 812 p->sw_code = ulinear8_to_mulaw; 813 break; 814 case AUDIO_ENCODING_ALAW: 815 if (mode == AUMODE_PLAY) { 816 p->factor = 2; 817 p->sw_code = alaw_to_slinear16_le; 818 } else 819 p->sw_code = ulinear8_to_alaw; 820 break; 821 default: 822 return (EINVAL); 823 } 824 } 825 826 827 return (0); 828 } 829 830 int 831 neo_round_blocksize(void *addr, int blk) 832 { 833 834 return (NM_BUFFSIZE / 2); 835 } 836 837 int 838 neo_trigger_output(void *addr, void *start, void *end, int blksize, 839 void (*intr)(void *), void *arg, struct audio_params *param) 840 { 841 struct neo_softc *sc = addr; 842 int ssz; 843 844 sc->pintr = intr; 845 sc->parg = arg; 846 847 ssz = (param->precision * param->factor == 16) ? 2 : 1; 848 if (param->channels == 2) 849 ssz <<= 1; 850 851 sc->pbufsize = ((char*)end - (char *)start); 852 sc->pblksize = blksize; 853 sc->pwmark = blksize; 854 855 nm_wr_4(sc, NM_PBUFFER_START, sc->pbuf); 856 nm_wr_4(sc, NM_PBUFFER_END, sc->pbuf + sc->pbufsize - ssz); 857 nm_wr_4(sc, NM_PBUFFER_CURRP, sc->pbuf); 858 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark); 859 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, NM_PLAYBACK_FREERUN | 860 NM_PLAYBACK_ENABLE_FLAG); 861 nm_wr_2(sc, NM_AUDIO_MUTE_REG, 0); 862 863 return (0); 864 } 865 866 int 867 neo_trigger_input(void *addr, void *start, void *end, int blksize, 868 void (*intr)(void *), void *arg, struct audio_params *param) 869 { 870 struct neo_softc *sc = addr; 871 int ssz; 872 873 sc->rintr = intr; 874 sc->rarg = arg; 875 876 ssz = (param->precision * param->factor == 16) ? 2 : 1; 877 if (param->channels == 2) 878 ssz <<= 1; 879 880 sc->rbufsize = ((char*)end - (char *)start); 881 sc->rblksize = blksize; 882 sc->rwmark = blksize; 883 884 nm_wr_4(sc, NM_RBUFFER_START, sc->rbuf); 885 nm_wr_4(sc, NM_RBUFFER_END, sc->rbuf + sc->rbufsize); 886 nm_wr_4(sc, NM_RBUFFER_CURRP, sc->rbuf); 887 nm_wr_4(sc, NM_RBUFFER_WMARK, sc->rbuf + sc->rwmark); 888 nm_wr_1(sc, NM_RECORD_ENABLE_REG, NM_RECORD_FREERUN | 889 NM_RECORD_ENABLE_FLAG); 890 891 return (0); 892 } 893 894 int 895 neo_halt_output(void *addr) 896 { 897 struct neo_softc *sc = (struct neo_softc *)addr; 898 899 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, 0); 900 nm_wr_2(sc, NM_AUDIO_MUTE_REG, NM_AUDIO_MUTE_BOTH); 901 902 return (0); 903 } 904 905 int 906 neo_halt_input(void *addr) 907 { 908 struct neo_softc *sc = (struct neo_softc *)addr; 909 910 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0); 911 912 return (0); 913 } 914 915 int 916 neo_getdev(void *addr, struct audio_device *retp) 917 { 918 919 *retp = neo_device; 920 return (0); 921 } 922 923 int 924 neo_mixer_set_port(void *addr, mixer_ctrl_t *cp) 925 { 926 struct neo_softc *sc = addr; 927 928 return ((sc->codec_if->vtbl->mixer_set_port)(sc->codec_if, cp)); 929 } 930 931 int 932 neo_mixer_get_port(void *addr, mixer_ctrl_t *cp) 933 { 934 struct neo_softc *sc = addr; 935 936 return ((sc->codec_if->vtbl->mixer_get_port)(sc->codec_if, cp)); 937 } 938 939 int 940 neo_query_devinfo(void *addr, mixer_devinfo_t *dip) 941 { 942 struct neo_softc *sc = addr; 943 944 return ((sc->codec_if->vtbl->query_devinfo)(sc->codec_if, dip)); 945 } 946 947 void * 948 neo_malloc(void *addr, int direction, size_t size, int pool, int flags) 949 { 950 struct neo_softc *sc = addr; 951 void *rv = NULL; 952 953 switch (direction) { 954 case AUMODE_PLAY: 955 if (sc->pbuf_allocated == 0) { 956 rv = (void *) sc->pbuf_vaddr; 957 sc->pbuf_allocated = 1; 958 } 959 break; 960 961 case AUMODE_RECORD: 962 if (sc->rbuf_allocated == 0) { 963 rv = (void *) sc->rbuf_vaddr; 964 sc->rbuf_allocated = 1; 965 } 966 break; 967 } 968 969 return (rv); 970 } 971 972 void 973 neo_free(void *addr, void *ptr, int pool) 974 { 975 struct neo_softc *sc = addr; 976 vaddr_t v = (vaddr_t) ptr; 977 978 if (v == sc->pbuf_vaddr) 979 sc->pbuf_allocated = 0; 980 else if (v == sc->rbuf_vaddr) 981 sc->rbuf_allocated = 0; 982 else 983 printf("neo_free: bad address %p\n", ptr); 984 } 985 986 size_t 987 neo_round_buffersize(void *addr, int direction, size_t size) 988 { 989 990 return (NM_BUFFSIZE); 991 } 992 993 paddr_t 994 neo_mappage(void *addr, void *mem, off_t off, int prot) 995 { 996 struct neo_softc *sc = addr; 997 vaddr_t v = (vaddr_t) mem; 998 bus_addr_t pciaddr; 999 1000 /* XXX Need new mapping code. */ 1001 1002 if (v == sc->pbuf_vaddr) 1003 pciaddr = sc->pbuf_pciaddr; 1004 else if (v == sc->rbuf_vaddr) 1005 pciaddr = sc->rbuf_pciaddr; 1006 else 1007 return (-1); 1008 1009 #ifdef __i386__ 1010 return (i386_btop(pciaddr + off)); 1011 #else 1012 return (-1); 1013 #endif 1014 } 1015 1016 int 1017 neo_get_props(void *addr) 1018 { 1019 1020 return (AUDIO_PROP_INDEPENDENT | AUDIO_PROP_MMAP | 1021 AUDIO_PROP_FULLDUPLEX); 1022 } 1023
Indexes created Thu Oct 02 10:09:58 GMT 2025