neo.c revision 1.24.2.1
1 /* $NetBSD: neo.c,v 1.24.2.1 2005/01/02 20:03:11 kent 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 1.24.2.1 2005/01/02 20:03:11 kent 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, audio_params_t *, audio_params_t *, 187 stream_filter_list_t *, stream_filter_list_t *); 188 int neo_round_blocksize(void *, int); 189 int neo_trigger_output(void *, void *, void *, int, void (*)(void *), 190 void *, const audio_params_t *); 191 int neo_trigger_input(void *, void *, void *, int, void (*)(void *), 192 void *, const audio_params_t *); 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 int 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 #define NEO_NFORMATS 4 235 static const struct audio_format neo_formats[NEO_NFORMATS] = { 236 {NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16, 237 2, AUFMT_STEREO, 8, {8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000}}, 238 {NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16, 239 1, AUFMT_MONAURAL, 8, {8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000}}, 240 {NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8, 241 2, AUFMT_STEREO, 8, {8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000}}, 242 {NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8, 243 1, AUFMT_MONAURAL, 8, {8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000}}, 244 }; 245 246 /* -------------------------------------------------------------------- */ 247 248 const struct audio_hw_if neo_hw_if = { 249 neo_open, 250 neo_close, 251 NULL, /* drain */ 252 neo_query_encoding, 253 neo_set_params, 254 neo_round_blocksize, 255 NULL, /* commit_setting */ 256 NULL, /* init_output */ 257 NULL, /* init_input */ 258 NULL, /* start_output */ 259 NULL, /* start_input */ 260 neo_halt_output, 261 neo_halt_input, 262 NULL, /* speaker_ctl */ 263 neo_getdev, 264 NULL, /* getfd */ 265 neo_mixer_set_port, 266 neo_mixer_get_port, 267 neo_query_devinfo, 268 neo_malloc, 269 neo_free, 270 neo_round_buffersize, 271 neo_mappage, 272 neo_get_props, 273 neo_trigger_output, 274 neo_trigger_input, 275 NULL, 276 }; 277 278 /* -------------------------------------------------------------------- */ 279 280 #define nm_rd_1(sc, regno) \ 281 bus_space_read_1((sc)->regiot, (sc)->regioh, (regno)) 282 283 #define nm_rd_2(sc, regno) \ 284 bus_space_read_2((sc)->regiot, (sc)->regioh, (regno)) 285 286 #define nm_rd_4(sc, regno) \ 287 bus_space_read_4((sc)->regiot, (sc)->regioh, (regno)) 288 289 #define nm_wr_1(sc, regno, val) \ 290 bus_space_write_1((sc)->regiot, (sc)->regioh, (regno), (val)) 291 292 #define nm_wr_2(sc, regno, val) \ 293 bus_space_write_2((sc)->regiot, (sc)->regioh, (regno), (val)) 294 295 #define nm_wr_4(sc, regno, val) \ 296 bus_space_write_4((sc)->regiot, (sc)->regioh, (regno), (val)) 297 298 #define nm_rdbuf_4(sc, regno) \ 299 bus_space_read_4((sc)->bufiot, (sc)->bufioh, (regno)) 300 301 #define nm_wrbuf_1(sc, regno, val) \ 302 bus_space_write_1((sc)->bufiot, (sc)->bufioh, (regno), (val)) 303 304 /* ac97 codec */ 305 static int 306 nm_waitcd(struct neo_softc *sc) 307 { 308 int cnt = 10; 309 int fail = 1; 310 311 while (cnt-- > 0) { 312 if (nm_rd_2(sc, sc->ac97_status) & sc->ac97_busy) 313 DELAY(100); 314 else { 315 fail = 0; 316 break; 317 } 318 } 319 return (fail); 320 } 321 322 323 static void 324 nm_ackint(struct neo_softc *sc, u_int32_t num) 325 { 326 327 switch (sc->type) { 328 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 329 nm_wr_2(sc, NM_INT_REG, num << 1); 330 break; 331 332 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 333 nm_wr_4(sc, NM_INT_REG, num); 334 break; 335 } 336 } 337 338 static int 339 nm_loadcoeff(struct neo_softc *sc, int dir, int num) 340 { 341 int ofs, sz, i; 342 u_int32_t addr; 343 344 addr = (dir == AUMODE_PLAY)? 0x01c : 0x21c; 345 if (dir == AUMODE_RECORD) 346 num += 8; 347 sz = coefficientSizes[num]; 348 ofs = 0; 349 while (num-- > 0) 350 ofs+= coefficientSizes[num]; 351 for (i = 0; i < sz; i++) 352 nm_wrbuf_1(sc, sc->cbuf + i, coefficients[ofs + i]); 353 nm_wr_4(sc, addr, sc->cbuf); 354 if (dir == AUMODE_PLAY) 355 sz--; 356 nm_wr_4(sc, addr + 4, sc->cbuf + sz); 357 return 0; 358 } 359 360 /* The interrupt handler */ 361 int 362 neo_intr(void *p) 363 { 364 struct neo_softc *sc = (struct neo_softc *)p; 365 int status, x; 366 int rv = 0; 367 368 status = (sc->irsz == 2) ? 369 nm_rd_2(sc, NM_INT_REG) : 370 nm_rd_4(sc, NM_INT_REG); 371 372 if (status & sc->playint) { 373 status &= ~sc->playint; 374 375 sc->pwmark += sc->pblksize; 376 sc->pwmark %= sc->pbufsize; 377 378 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark); 379 380 nm_ackint(sc, sc->playint); 381 382 if (sc->pintr) 383 (*sc->pintr)(sc->parg); 384 385 rv = 1; 386 } 387 if (status & sc->recint) { 388 status &= ~sc->recint; 389 390 sc->rwmark += sc->rblksize; 391 sc->rwmark %= sc->rbufsize; 392 393 nm_ackint(sc, sc->recint); 394 if (sc->rintr) 395 (*sc->rintr)(sc->rarg); 396 397 rv = 1; 398 } 399 if (status & sc->misc1int) { 400 status &= ~sc->misc1int; 401 nm_ackint(sc, sc->misc1int); 402 x = nm_rd_1(sc, 0x400); 403 nm_wr_1(sc, 0x400, x | 2); 404 printf("%s: misc int 1\n", sc->dev.dv_xname); 405 rv = 1; 406 } 407 if (status & sc->misc2int) { 408 status &= ~sc->misc2int; 409 nm_ackint(sc, sc->misc2int); 410 x = nm_rd_1(sc, 0x400); 411 nm_wr_1(sc, 0x400, x & ~2); 412 printf("%s: misc int 2\n", sc->dev.dv_xname); 413 rv = 1; 414 } 415 if (status) { 416 status &= ~sc->misc2int; 417 nm_ackint(sc, sc->misc2int); 418 printf("%s: unknown int\n", sc->dev.dv_xname); 419 rv = 1; 420 } 421 422 return (rv); 423 } 424 425 /* -------------------------------------------------------------------- */ 426 427 /* 428 * Probe and attach the card 429 */ 430 431 static int 432 nm_init(struct neo_softc *sc) 433 { 434 u_int32_t ofs, i; 435 436 switch (sc->type) { 437 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 438 sc->ac97_base = NM_MIXER_OFFSET; 439 sc->ac97_status = NM_MIXER_STATUS_OFFSET; 440 sc->ac97_busy = NM_MIXER_READY_MASK; 441 442 sc->buftop = 2560 * 1024; 443 444 sc->irsz = 2; 445 sc->playint = NM_PLAYBACK_INT; 446 sc->recint = NM_RECORD_INT; 447 sc->misc1int = NM_MISC_INT_1; 448 sc->misc2int = NM_MISC_INT_2; 449 break; 450 451 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 452 sc->ac97_base = NM_MIXER_OFFSET; 453 sc->ac97_status = NM2_MIXER_STATUS_OFFSET; 454 sc->ac97_busy = NM2_MIXER_READY_MASK; 455 456 sc->buftop = (nm_rd_2(sc, 0xa0b) ? 6144 : 4096) * 1024; 457 458 sc->irsz = 4; 459 sc->playint = NM2_PLAYBACK_INT; 460 sc->recint = NM2_RECORD_INT; 461 sc->misc1int = NM2_MISC_INT_1; 462 sc->misc2int = NM2_MISC_INT_2; 463 break; 464 #ifdef DIAGNOSTIC 465 default: 466 panic("nm_init: impossible"); 467 #endif 468 } 469 470 sc->badintr = 0; 471 ofs = sc->buftop - 0x0400; 472 sc->buftop -= 0x1400; 473 474 if ((nm_rdbuf_4(sc, ofs) & NM_SIG_MASK) == NM_SIGNATURE) { 475 i = nm_rdbuf_4(sc, ofs + 4); 476 if (i != 0 && i != 0xffffffff) 477 sc->buftop = i; 478 } 479 480 sc->cbuf = sc->buftop - NM_MAX_COEFFICIENT; 481 sc->rbuf = sc->cbuf - NM_BUFFSIZE; 482 sc->pbuf = sc->rbuf - NM_BUFFSIZE; 483 sc->acbuf = sc->pbuf - (NM_TOTAL_COEFF_COUNT * 4); 484 485 sc->buf_vaddr = (vaddr_t) bus_space_vaddr(sc->bufiot, sc->bufioh); 486 sc->rbuf_vaddr = sc->buf_vaddr + sc->rbuf; 487 sc->pbuf_vaddr = sc->buf_vaddr + sc->pbuf; 488 489 sc->rbuf_pciaddr = sc->buf_pciaddr + sc->rbuf; 490 sc->pbuf_pciaddr = sc->buf_pciaddr + sc->pbuf; 491 492 nm_wr_1(sc, 0, 0x11); 493 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0); 494 nm_wr_2(sc, 0x214, 0); 495 496 return 0; 497 } 498 499 int 500 neo_match(struct device *parent, struct cfdata *match, void *aux) 501 { 502 struct pci_attach_args *pa = aux; 503 pcireg_t subdev; 504 505 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_NEOMAGIC) 506 return (0); 507 508 subdev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 509 510 switch (PCI_PRODUCT(pa->pa_id)) { 511 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 512 /* 513 * We have to weed-out the non-AC'97 versions of 514 * the chip (i.e. the ones that are known to work 515 * in WSS emulation mode), as they won't work with 516 * this driver. 517 */ 518 switch (PCI_VENDOR(subdev)) { 519 case PCI_VENDOR_DELL: 520 switch (PCI_PRODUCT(subdev)) { 521 case 0x008f: 522 return (0); 523 } 524 break; 525 526 case PCI_VENDOR_HP: 527 switch (PCI_PRODUCT(subdev)) { 528 case 0x0007: 529 return (0); 530 } 531 break; 532 533 case PCI_VENDOR_IBM: 534 switch (PCI_PRODUCT(subdev)) { 535 case 0x00dd: 536 return (0); 537 } 538 break; 539 } 540 return (1); 541 542 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 543 return (1); 544 } 545 546 return (0); 547 } 548 549 void 550 neo_power(int why, void *addr) 551 { 552 struct neo_softc *sc = (struct neo_softc *)addr; 553 554 if (why == PWR_RESUME) { 555 nm_init(sc); 556 (sc->codec_if->vtbl->restore_ports)(sc->codec_if); 557 } 558 } 559 560 void 561 neo_attach(struct device *parent, struct device *self, void *aux) 562 { 563 struct neo_softc *sc = (struct neo_softc *)self; 564 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 565 pci_chipset_tag_t pc = pa->pa_pc; 566 char const *intrstr; 567 pci_intr_handle_t ih; 568 pcireg_t csr; 569 570 sc->type = PCI_PRODUCT(pa->pa_id); 571 572 printf(": NeoMagic 256%s audio\n", 573 sc->type == PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU ? "AV" : "ZX"); 574 575 /* Map I/O register */ 576 if (pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_MEM, 0, 577 &sc->bufiot, &sc->bufioh, &sc->buf_pciaddr, NULL)) { 578 printf("%s: can't map buffer\n", sc->dev.dv_xname); 579 return; 580 } 581 582 if (pci_mapreg_map(pa, PCI_MAPREG_START + 4, PCI_MAPREG_TYPE_MEM, 583 BUS_SPACE_MAP_LINEAR, &sc->regiot, &sc->regioh, NULL, NULL)) { 584 printf("%s: can't map registers\n", sc->dev.dv_xname); 585 return; 586 } 587 588 /* Map and establish the interrupt. */ 589 if (pci_intr_map(pa, &ih)) { 590 printf("%s: couldn't map interrupt\n", sc->dev.dv_xname); 591 return; 592 } 593 594 intrstr = pci_intr_string(pc, ih); 595 sc->ih = pci_intr_establish(pc, ih, IPL_AUDIO, neo_intr, sc); 596 597 if (sc->ih == NULL) { 598 printf("%s: couldn't establish interrupt", 599 sc->dev.dv_xname); 600 if (intrstr != NULL) 601 printf(" at %s", intrstr); 602 printf("\n"); 603 return; 604 } 605 printf("%s: interruping at %s\n", sc->dev.dv_xname, intrstr); 606 607 if (nm_init(sc) != 0) 608 return; 609 610 /* Enable the device. */ 611 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 612 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 613 csr | PCI_COMMAND_MASTER_ENABLE); 614 615 sc->host_if.arg = sc; 616 617 sc->host_if.attach = neo_attach_codec; 618 sc->host_if.read = neo_read_codec; 619 sc->host_if.write = neo_write_codec; 620 sc->host_if.reset = neo_reset_codec; 621 sc->host_if.flags = neo_flags_codec; 622 623 if (ac97_attach(&sc->host_if, self) != 0) 624 return; 625 626 sc->powerhook = powerhook_establish(neo_power, sc); 627 628 audio_attach_mi(&neo_hw_if, sc, &sc->dev); 629 } 630 631 int 632 neo_read_codec(void *v, u_int8_t a, u_int16_t *d) 633 { 634 struct neo_softc *sc = v; 635 636 if (!nm_waitcd(sc)) { 637 *d = nm_rd_2(sc, sc->ac97_base + a); 638 DELAY(1000); 639 return 0; 640 } 641 642 return (ENXIO); 643 } 644 645 646 int 647 neo_write_codec(void *v, u_int8_t a, u_int16_t d) 648 { 649 struct neo_softc *sc = v; 650 int cnt = 3; 651 652 if (!nm_waitcd(sc)) { 653 while (cnt-- > 0) { 654 nm_wr_2(sc, sc->ac97_base + a, d); 655 if (!nm_waitcd(sc)) { 656 DELAY(1000); 657 return (0); 658 } 659 } 660 } 661 662 return (ENXIO); 663 } 664 665 int 666 neo_attach_codec(void *v, struct ac97_codec_if *codec_if) 667 { 668 struct neo_softc *sc = v; 669 670 sc->codec_if = codec_if; 671 return (0); 672 } 673 674 int 675 neo_reset_codec(void *v) 676 { 677 struct neo_softc *sc = v; 678 679 nm_wr_1(sc, 0x6c0, 0x01); 680 nm_wr_1(sc, 0x6cc, 0x87); 681 nm_wr_1(sc, 0x6cc, 0x80); 682 nm_wr_1(sc, 0x6cc, 0x00); 683 return 0; 684 } 685 686 enum ac97_host_flags 687 neo_flags_codec(void *v) 688 { 689 690 return (AC97_HOST_DONT_READ); 691 } 692 693 int 694 neo_open(void *addr, int flags) 695 { 696 697 return (0); 698 } 699 700 /* 701 * Close function is called at splaudio(). 702 */ 703 void 704 neo_close(void *addr) 705 { 706 } 707 708 int 709 neo_query_encoding(void *addr, struct audio_encoding *fp) 710 { 711 712 switch (fp->index) { 713 case 0: 714 strcpy(fp->name, AudioEulinear); 715 fp->encoding = AUDIO_ENCODING_ULINEAR; 716 fp->precision = 8; 717 fp->flags = 0; 718 return (0); 719 case 1: 720 strcpy(fp->name, AudioEmulaw); 721 fp->encoding = AUDIO_ENCODING_ULAW; 722 fp->precision = 8; 723 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 724 return (0); 725 case 2: 726 strcpy(fp->name, AudioEalaw); 727 fp->encoding = AUDIO_ENCODING_ALAW; 728 fp->precision = 8; 729 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 730 return (0); 731 case 3: 732 strcpy(fp->name, AudioEslinear); 733 fp->encoding = AUDIO_ENCODING_SLINEAR; 734 fp->precision = 8; 735 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 736 return (0); 737 case 4: 738 strcpy(fp->name, AudioEslinear_le); 739 fp->encoding = AUDIO_ENCODING_SLINEAR_LE; 740 fp->precision = 16; 741 fp->flags = 0; 742 return (0); 743 case 5: 744 strcpy(fp->name, AudioEulinear_le); 745 fp->encoding = AUDIO_ENCODING_ULINEAR_LE; 746 fp->precision = 16; 747 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 748 return (0); 749 case 6: 750 strcpy(fp->name, AudioEslinear_be); 751 fp->encoding = AUDIO_ENCODING_SLINEAR_BE; 752 fp->precision = 16; 753 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 754 return (0); 755 case 7: 756 strcpy(fp->name, AudioEulinear_be); 757 fp->encoding = AUDIO_ENCODING_ULINEAR_BE; 758 fp->precision = 16; 759 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 760 return (0); 761 default: 762 return (EINVAL); 763 } 764 } 765 766 /* Todo: don't commit settings to card until we've verified all parameters */ 767 int 768 neo_set_params(void *addr, int setmode, int usemode, audio_params_t *play, 769 audio_params_t *rec, stream_filter_list_t *pfil, stream_filter_list_t *rfil) 770 { 771 struct neo_softc *sc = addr; 772 audio_params_t *p; 773 stream_filter_list_t *fil; 774 u_int32_t base; 775 u_int8_t x; 776 int mode, i; 777 778 for (mode = AUMODE_RECORD; mode != -1; 779 mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) { 780 if ((setmode & mode) == 0) 781 continue; 782 783 p = mode == AUMODE_PLAY ? play : rec; 784 785 if (p == NULL) continue; 786 787 for (x = 0; x < 8; x++) { 788 if (p->sample_rate < 789 (samplerates[x] + samplerates[x + 1]) / 2) 790 break; 791 } 792 if (x == 8) 793 return (EINVAL); 794 795 p->sample_rate = samplerates[x]; 796 nm_loadcoeff(sc, mode, x); 797 798 x <<= 4; 799 x &= NM_RATE_MASK; 800 if (p->precision == 16) 801 x |= NM_RATE_BITS_16; 802 if (p->channels == 2) 803 x |= NM_RATE_STEREO; 804 805 base = (mode == AUMODE_PLAY)? 806 NM_PLAYBACK_REG_OFFSET : NM_RECORD_REG_OFFSET; 807 nm_wr_1(sc, base + NM_RATE_REG_OFFSET, x); 808 809 fil = mode == AUMODE_PLAY ? pfil : rfil; 810 i = auconv_set_converter(neo_formats, NEO_NFORMATS, 811 mode, p, FALSE, fil); 812 if (i < 0) 813 return EINVAL; 814 } 815 816 817 return (0); 818 } 819 820 int 821 neo_round_blocksize(void *addr, int blk) 822 { 823 824 return (NM_BUFFSIZE / 2); 825 } 826 827 int 828 neo_trigger_output(void *addr, void *start, void *end, int blksize, 829 void (*intr)(void *), void *arg, const audio_params_t *param) 830 { 831 struct neo_softc *sc = addr; 832 int ssz; 833 834 sc->pintr = intr; 835 sc->parg = arg; 836 837 ssz = (param->precision == 16) ? 2 : 1; 838 if (param->channels == 2) 839 ssz <<= 1; 840 841 sc->pbufsize = ((char*)end - (char *)start); 842 sc->pblksize = blksize; 843 sc->pwmark = blksize; 844 845 nm_wr_4(sc, NM_PBUFFER_START, sc->pbuf); 846 nm_wr_4(sc, NM_PBUFFER_END, sc->pbuf + sc->pbufsize - ssz); 847 nm_wr_4(sc, NM_PBUFFER_CURRP, sc->pbuf); 848 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark); 849 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, NM_PLAYBACK_FREERUN | 850 NM_PLAYBACK_ENABLE_FLAG); 851 nm_wr_2(sc, NM_AUDIO_MUTE_REG, 0); 852 853 return (0); 854 } 855 856 int 857 neo_trigger_input(void *addr, void *start, void *end, int blksize, 858 void (*intr)(void *), void *arg, const audio_params_t *param) 859 { 860 struct neo_softc *sc = addr; 861 int ssz; 862 863 sc->rintr = intr; 864 sc->rarg = arg; 865 866 ssz = (param->precision == 16) ? 2 : 1; 867 if (param->channels == 2) 868 ssz <<= 1; 869 870 sc->rbufsize = ((char*)end - (char *)start); 871 sc->rblksize = blksize; 872 sc->rwmark = blksize; 873 874 nm_wr_4(sc, NM_RBUFFER_START, sc->rbuf); 875 nm_wr_4(sc, NM_RBUFFER_END, sc->rbuf + sc->rbufsize); 876 nm_wr_4(sc, NM_RBUFFER_CURRP, sc->rbuf); 877 nm_wr_4(sc, NM_RBUFFER_WMARK, sc->rbuf + sc->rwmark); 878 nm_wr_1(sc, NM_RECORD_ENABLE_REG, NM_RECORD_FREERUN | 879 NM_RECORD_ENABLE_FLAG); 880 881 return (0); 882 } 883 884 int 885 neo_halt_output(void *addr) 886 { 887 struct neo_softc *sc = (struct neo_softc *)addr; 888 889 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, 0); 890 nm_wr_2(sc, NM_AUDIO_MUTE_REG, NM_AUDIO_MUTE_BOTH); 891 sc->pintr = 0; 892 893 return (0); 894 } 895 896 int 897 neo_halt_input(void *addr) 898 { 899 struct neo_softc *sc = (struct neo_softc *)addr; 900 901 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0); 902 sc->rintr = 0; 903 904 return (0); 905 } 906 907 int 908 neo_getdev(void *addr, struct audio_device *retp) 909 { 910 911 *retp = neo_device; 912 return (0); 913 } 914 915 int 916 neo_mixer_set_port(void *addr, mixer_ctrl_t *cp) 917 { 918 struct neo_softc *sc = addr; 919 920 return ((sc->codec_if->vtbl->mixer_set_port)(sc->codec_if, cp)); 921 } 922 923 int 924 neo_mixer_get_port(void *addr, mixer_ctrl_t *cp) 925 { 926 struct neo_softc *sc = addr; 927 928 return ((sc->codec_if->vtbl->mixer_get_port)(sc->codec_if, cp)); 929 } 930 931 int 932 neo_query_devinfo(void *addr, mixer_devinfo_t *dip) 933 { 934 struct neo_softc *sc = addr; 935 936 return ((sc->codec_if->vtbl->query_devinfo)(sc->codec_if, dip)); 937 } 938 939 void * 940 neo_malloc(void *addr, int direction, size_t size, struct malloc_type *pool, 941 int flags) 942 { 943 struct neo_softc *sc = addr; 944 void *rv = NULL; 945 946 switch (direction) { 947 case AUMODE_PLAY: 948 if (sc->pbuf_allocated == 0) { 949 rv = (void *) sc->pbuf_vaddr; 950 sc->pbuf_allocated = 1; 951 } 952 break; 953 954 case AUMODE_RECORD: 955 if (sc->rbuf_allocated == 0) { 956 rv = (void *) sc->rbuf_vaddr; 957 sc->rbuf_allocated = 1; 958 } 959 break; 960 } 961 962 return (rv); 963 } 964 965 void 966 neo_free(void *addr, void *ptr, struct malloc_type *pool) 967 { 968 struct neo_softc *sc = addr; 969 vaddr_t v = (vaddr_t) ptr; 970 971 if (v == sc->pbuf_vaddr) 972 sc->pbuf_allocated = 0; 973 else if (v == sc->rbuf_vaddr) 974 sc->rbuf_allocated = 0; 975 else 976 printf("neo_free: bad address %p\n", ptr); 977 } 978 979 size_t 980 neo_round_buffersize(void *addr, int direction, size_t size) 981 { 982 983 return (NM_BUFFSIZE); 984 } 985 986 paddr_t 987 neo_mappage(void *addr, void *mem, off_t off, int prot) 988 { 989 struct neo_softc *sc = addr; 990 vaddr_t v = (vaddr_t) mem; 991 bus_addr_t pciaddr; 992 993 if (v == sc->pbuf_vaddr) 994 pciaddr = sc->pbuf_pciaddr; 995 else if (v == sc->rbuf_vaddr) 996 pciaddr = sc->rbuf_pciaddr; 997 else 998 return (-1); 999 1000 return (bus_space_mmap(sc->bufiot, pciaddr, off, prot, 1001 BUS_SPACE_MAP_LINEAR)); 1002 } 1003 1004 int 1005 neo_get_props(void *addr) 1006 { 1007 1008 return (AUDIO_PROP_INDEPENDENT | AUDIO_PROP_MMAP | 1009 AUDIO_PROP_FULLDUPLEX); 1010 } 1011
Indexes created Thu Oct 02 10:09:58 GMT 2025