neo.c revision 1.52
1 /* $NetBSD: neo.c,v 1.52 2019/03/16 12:09:58 isaki 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 1.52 2019/03/16 12:09:58 isaki Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/kmem.h> 41 #include <sys/device.h> 42 #include <sys/bus.h> 43 #include <sys/audioio.h> 44 45 #include <dev/audio_if.h> 46 #include <dev/mulaw.h> 47 #include <dev/auconv.h> 48 49 #include <dev/ic/ac97var.h> 50 51 #include <dev/pci/pcidevs.h> 52 #include <dev/pci/pcivar.h> 53 #include <dev/pci/neoreg.h> 54 #include <dev/pci/neo-coeff.h> 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 * might 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 second 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 far 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 * Figure out how to shrink that huge table neo-coeff.h 113 */ 114 115 #define NM_BUFFSIZE 16384 116 117 /* device private data */ 118 struct neo_softc { 119 device_t dev; 120 kmutex_t lock; 121 kmutex_t intr_lock; 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 uint32_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 uint32_t ac97_base, ac97_status, ac97_busy; 149 uint32_t buftop, pbuf, rbuf, cbuf, acbuf; 150 uint32_t playint, recint, misc1int, misc2int; 151 uint32_t irsz, badintr; 152 153 uint32_t pbufsize; 154 uint32_t rbufsize; 155 156 uint32_t pblksize; 157 uint32_t rblksize; 158 159 uint32_t pwmark; 160 uint32_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 *); 173 static int nm_loadcoeff(struct neo_softc *, int, int); 174 static int nm_init(struct neo_softc *); 175 176 static int neo_match(device_t, cfdata_t, void *); 177 static void neo_attach(device_t, device_t, void *); 178 static int neo_intr(void *); 179 180 static int neo_query_encoding(void *, struct audio_encoding *); 181 static int neo_set_params(void *, int, int, audio_params_t *, 182 audio_params_t *, stream_filter_list_t *, 183 stream_filter_list_t *); 184 static int neo_round_blocksize(void *, int, int, const audio_params_t *); 185 static int neo_trigger_output(void *, void *, void *, int, 186 void (*)(void *), void *, 187 const audio_params_t *); 188 static int neo_trigger_input(void *, void *, void *, int, 189 void (*)(void *), void *, 190 const audio_params_t *); 191 static int neo_halt_output(void *); 192 static int neo_halt_input(void *); 193 static int neo_getdev(void *, struct audio_device *); 194 static int neo_mixer_set_port(void *, mixer_ctrl_t *); 195 static int neo_mixer_get_port(void *, mixer_ctrl_t *); 196 static int neo_attach_codec(void *, struct ac97_codec_if *); 197 static int neo_read_codec(void *, uint8_t, uint16_t *); 198 static int neo_write_codec(void *, uint8_t, uint16_t); 199 static int neo_reset_codec(void *); 200 static enum ac97_host_flags neo_flags_codec(void *); 201 static int neo_query_devinfo(void *, mixer_devinfo_t *); 202 static void * neo_malloc(void *, int, size_t); 203 static void neo_free(void *, void *, size_t); 204 static size_t neo_round_buffersize(void *, int, size_t); 205 static paddr_t neo_mappage(void *, void *, off_t, int); 206 static int neo_get_props(void *); 207 static void neo_get_locks(void *, kmutex_t **, kmutex_t **); 208 209 CFATTACH_DECL_NEW(neo, sizeof(struct neo_softc), 210 neo_match, neo_attach, NULL, NULL); 211 212 static 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 #define NEO_NFORMATS 4 232 static const struct audio_format neo_formats[NEO_NFORMATS] = { 233 {NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16, 234 2, AUFMT_STEREO, 8, {8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000}}, 235 {NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16, 236 1, AUFMT_MONAURAL, 8, {8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000}}, 237 {NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8, 238 2, AUFMT_STEREO, 8, {8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000}}, 239 {NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_ULINEAR_LE, 8, 8, 240 1, AUFMT_MONAURAL, 8, {8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000}}, 241 }; 242 243 /* -------------------------------------------------------------------- */ 244 245 static const struct audio_hw_if neo_hw_if = { 246 .query_encoding = neo_query_encoding, 247 .set_params = neo_set_params, 248 .round_blocksize = neo_round_blocksize, 249 .halt_output = neo_halt_output, 250 .halt_input = neo_halt_input, 251 .getdev = neo_getdev, 252 .set_port = neo_mixer_set_port, 253 .get_port = neo_mixer_get_port, 254 .query_devinfo = neo_query_devinfo, 255 .allocm = neo_malloc, 256 .freem = neo_free, 257 .round_buffersize = neo_round_buffersize, 258 .mappage = neo_mappage, 259 .get_props = neo_get_props, 260 .trigger_output = neo_trigger_output, 261 .trigger_input = neo_trigger_input, 262 .get_locks = neo_get_locks, 263 }; 264 265 /* -------------------------------------------------------------------- */ 266 267 #define nm_rd_1(sc, regno) \ 268 bus_space_read_1((sc)->regiot, (sc)->regioh, (regno)) 269 270 #define nm_rd_2(sc, regno) \ 271 bus_space_read_2((sc)->regiot, (sc)->regioh, (regno)) 272 273 #define nm_rd_4(sc, regno) \ 274 bus_space_read_4((sc)->regiot, (sc)->regioh, (regno)) 275 276 #define nm_wr_1(sc, regno, val) \ 277 bus_space_write_1((sc)->regiot, (sc)->regioh, (regno), (val)) 278 279 #define nm_wr_2(sc, regno, val) \ 280 bus_space_write_2((sc)->regiot, (sc)->regioh, (regno), (val)) 281 282 #define nm_wr_4(sc, regno, val) \ 283 bus_space_write_4((sc)->regiot, (sc)->regioh, (regno), (val)) 284 285 #define nm_rdbuf_4(sc, regno) \ 286 bus_space_read_4((sc)->bufiot, (sc)->bufioh, (regno)) 287 288 #define nm_wrbuf_1(sc, regno, val) \ 289 bus_space_write_1((sc)->bufiot, (sc)->bufioh, (regno), (val)) 290 291 /* ac97 codec */ 292 static int 293 nm_waitcd(struct neo_softc *sc) 294 { 295 int cnt; 296 int fail; 297 298 cnt = 10; 299 fail = 1; 300 while (cnt-- > 0) { 301 if (nm_rd_2(sc, sc->ac97_status) & sc->ac97_busy) 302 DELAY(100); 303 else { 304 fail = 0; 305 break; 306 } 307 } 308 return fail; 309 } 310 311 static void 312 nm_ackint(struct neo_softc *sc, uint32_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 uint32_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 static int 350 neo_intr(void *p) 351 { 352 struct neo_softc *sc; 353 int status, x; 354 int rv; 355 356 sc = (struct neo_softc *)p; 357 mutex_spin_enter(&sc->intr_lock); 358 359 rv = 0; 360 status = (sc->irsz == 2) ? 361 nm_rd_2(sc, NM_INT_REG) : 362 nm_rd_4(sc, NM_INT_REG); 363 364 if (status & sc->playint) { 365 status &= ~sc->playint; 366 367 sc->pwmark += sc->pblksize; 368 sc->pwmark %= sc->pbufsize; 369 370 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark); 371 372 nm_ackint(sc, sc->playint); 373 374 if (sc->pintr) 375 (*sc->pintr)(sc->parg); 376 377 rv = 1; 378 } 379 if (status & sc->recint) { 380 status &= ~sc->recint; 381 382 sc->rwmark += sc->rblksize; 383 sc->rwmark %= sc->rbufsize; 384 nm_wr_4(sc, NM_RBUFFER_WMARK, sc->rbuf + sc->rwmark); 385 nm_ackint(sc, sc->recint); 386 if (sc->rintr) 387 (*sc->rintr)(sc->rarg); 388 389 rv = 1; 390 } 391 if (status & sc->misc1int) { 392 status &= ~sc->misc1int; 393 nm_ackint(sc, sc->misc1int); 394 x = nm_rd_1(sc, 0x400); 395 nm_wr_1(sc, 0x400, x | 2); 396 printf("%s: misc int 1\n", device_xname(sc->dev)); 397 rv = 1; 398 } 399 if (status & sc->misc2int) { 400 status &= ~sc->misc2int; 401 nm_ackint(sc, sc->misc2int); 402 x = nm_rd_1(sc, 0x400); 403 nm_wr_1(sc, 0x400, x & ~2); 404 printf("%s: misc int 2\n", device_xname(sc->dev)); 405 rv = 1; 406 } 407 if (status) { 408 status &= ~sc->misc2int; 409 nm_ackint(sc, sc->misc2int); 410 printf("%s: unknown int\n", device_xname(sc->dev)); 411 rv = 1; 412 } 413 414 mutex_spin_exit(&sc->intr_lock); 415 return rv; 416 } 417 418 /* -------------------------------------------------------------------- */ 419 420 /* 421 * Probe and attach the card 422 */ 423 424 static int 425 nm_init(struct neo_softc *sc) 426 { 427 uint32_t ofs, i; 428 429 switch (sc->type) { 430 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 431 sc->ac97_base = NM_MIXER_OFFSET; 432 sc->ac97_status = NM_MIXER_STATUS_OFFSET; 433 sc->ac97_busy = NM_MIXER_READY_MASK; 434 435 sc->buftop = 2560 * 1024; 436 437 sc->irsz = 2; 438 sc->playint = NM_PLAYBACK_INT; 439 sc->recint = NM_RECORD_INT; 440 sc->misc1int = NM_MISC_INT_1; 441 sc->misc2int = NM_MISC_INT_2; 442 break; 443 444 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 445 sc->ac97_base = NM_MIXER_OFFSET; 446 sc->ac97_status = NM2_MIXER_STATUS_OFFSET; 447 sc->ac97_busy = NM2_MIXER_READY_MASK; 448 449 sc->buftop = (nm_rd_2(sc, 0xa0b) ? 6144 : 4096) * 1024; 450 451 sc->irsz = 4; 452 sc->playint = NM2_PLAYBACK_INT; 453 sc->recint = NM2_RECORD_INT; 454 sc->misc1int = NM2_MISC_INT_1; 455 sc->misc2int = NM2_MISC_INT_2; 456 break; 457 #ifdef DIAGNOSTIC 458 default: 459 panic("nm_init: impossible"); 460 #endif 461 } 462 463 sc->badintr = 0; 464 ofs = sc->buftop - 0x0400; 465 sc->buftop -= 0x1400; 466 467 if ((nm_rdbuf_4(sc, ofs) & NM_SIG_MASK) == NM_SIGNATURE) { 468 i = nm_rdbuf_4(sc, ofs + 4); 469 if (i != 0 && i != 0xffffffff) 470 sc->buftop = i; 471 } 472 473 sc->cbuf = sc->buftop - NM_MAX_COEFFICIENT; 474 sc->rbuf = sc->cbuf - NM_BUFFSIZE; 475 sc->pbuf = sc->rbuf - NM_BUFFSIZE; 476 sc->acbuf = sc->pbuf - (NM_TOTAL_COEFF_COUNT * 4); 477 478 sc->buf_vaddr = (vaddr_t) bus_space_vaddr(sc->bufiot, sc->bufioh); 479 sc->rbuf_vaddr = sc->buf_vaddr + sc->rbuf; 480 sc->pbuf_vaddr = sc->buf_vaddr + sc->pbuf; 481 482 sc->rbuf_pciaddr = sc->buf_pciaddr + sc->rbuf; 483 sc->pbuf_pciaddr = sc->buf_pciaddr + sc->pbuf; 484 485 nm_wr_1(sc, 0, 0x11); 486 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0); 487 nm_wr_2(sc, 0x214, 0); 488 489 return 0; 490 } 491 492 static int 493 neo_match(device_t parent, cfdata_t match, void *aux) 494 { 495 struct pci_attach_args *pa; 496 pcireg_t subdev; 497 498 pa = aux; 499 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_NEOMAGIC) 500 return 0; 501 502 subdev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); 503 504 switch (PCI_PRODUCT(pa->pa_id)) { 505 case PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU: 506 /* 507 * We have to weed-out the non-AC'97 versions of 508 * the chip (i.e. the ones that are known to work 509 * in WSS emulation mode), as they won't work with 510 * this driver. 511 */ 512 switch (PCI_VENDOR(subdev)) { 513 case PCI_VENDOR_DELL: 514 switch (PCI_PRODUCT(subdev)) { 515 case 0x008f: 516 return 0; 517 } 518 break; 519 520 case PCI_VENDOR_HP: 521 switch (PCI_PRODUCT(subdev)) { 522 case 0x0007: 523 return 0; 524 } 525 break; 526 527 case PCI_VENDOR_IBM: 528 switch (PCI_PRODUCT(subdev)) { 529 case 0x00dd: 530 return 0; 531 } 532 break; 533 } 534 return 1; 535 536 case PCI_PRODUCT_NEOMAGIC_NMMM256ZX_AU: 537 return 1; 538 } 539 540 return 0; 541 } 542 543 static bool 544 neo_resume(device_t dv, const pmf_qual_t *qual) 545 { 546 struct neo_softc *sc = device_private(dv); 547 548 mutex_enter(&sc->lock); 549 mutex_spin_enter(&sc->intr_lock); 550 nm_init(sc); 551 mutex_spin_exit(&sc->intr_lock); 552 sc->codec_if->vtbl->restore_ports(sc->codec_if); 553 mutex_exit(&sc->lock); 554 555 return true; 556 } 557 558 static void 559 neo_attach(device_t parent, device_t self, void *aux) 560 { 561 struct neo_softc *sc; 562 struct pci_attach_args *pa; 563 pci_chipset_tag_t pc; 564 char const *intrstr; 565 pci_intr_handle_t ih; 566 pcireg_t csr; 567 int error; 568 char intrbuf[PCI_INTRSTR_LEN]; 569 570 sc = device_private(self); 571 pa = aux; 572 pc = pa->pa_pc; 573 574 sc->type = PCI_PRODUCT(pa->pa_id); 575 576 printf(": NeoMagic 256%s audio\n", 577 sc->type == PCI_PRODUCT_NEOMAGIC_NMMM256AV_AU ? "AV" : "ZX"); 578 579 /* Map I/O register */ 580 if (pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_MEM, 0, 581 &sc->bufiot, &sc->bufioh, &sc->buf_pciaddr, NULL)) { 582 aprint_error_dev(self, "can't map buffer\n"); 583 return; 584 } 585 586 if (pci_mapreg_map(pa, PCI_MAPREG_START + 4, PCI_MAPREG_TYPE_MEM, 587 BUS_SPACE_MAP_LINEAR, &sc->regiot, &sc->regioh, NULL, NULL)) { 588 aprint_error_dev(self, "can't map registers\n"); 589 return; 590 } 591 592 /* Map and establish the interrupt. */ 593 if (pci_intr_map(pa, &ih)) { 594 aprint_error_dev(self, "couldn't map interrupt\n"); 595 return; 596 } 597 598 mutex_init(&sc->lock, MUTEX_DEFAULT, IPL_NONE); 599 mutex_init(&sc->intr_lock, MUTEX_DEFAULT, IPL_AUDIO); 600 601 intrstr = pci_intr_string(pc, ih, intrbuf, sizeof(intrbuf)); 602 sc->ih = pci_intr_establish_xname(pc, ih, IPL_AUDIO, neo_intr, sc, 603 device_xname(self)); 604 605 if (sc->ih == NULL) { 606 aprint_error_dev(self, "couldn't establish interrupt"); 607 if (intrstr != NULL) 608 aprint_error(" at %s", intrstr); 609 aprint_error("\n"); 610 mutex_destroy(&sc->lock); 611 mutex_destroy(&sc->intr_lock); 612 return; 613 } 614 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 615 616 mutex_spin_enter(&sc->intr_lock); 617 error = nm_init(sc); 618 mutex_spin_exit(&sc->intr_lock); 619 if (error != 0) { 620 mutex_destroy(&sc->lock); 621 mutex_destroy(&sc->intr_lock); 622 return; 623 } 624 625 /* Enable the device. */ 626 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 627 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 628 csr | PCI_COMMAND_MASTER_ENABLE); 629 630 sc->host_if.arg = sc; 631 sc->host_if.attach = neo_attach_codec; 632 sc->host_if.read = neo_read_codec; 633 sc->host_if.write = neo_write_codec; 634 sc->host_if.reset = neo_reset_codec; 635 sc->host_if.flags = neo_flags_codec; 636 637 if (ac97_attach(&sc->host_if, self, &sc->lock) != 0) { 638 mutex_destroy(&sc->lock); 639 mutex_destroy(&sc->intr_lock); 640 return; 641 } 642 643 if (!pmf_device_register(self, NULL, neo_resume)) 644 aprint_error_dev(self, "couldn't establish power handler\n"); 645 646 audio_attach_mi(&neo_hw_if, sc, self); 647 } 648 649 static int 650 neo_read_codec(void *v, uint8_t a, uint16_t *d) 651 { 652 struct neo_softc *sc; 653 654 sc = v; 655 if (!nm_waitcd(sc)) { 656 *d = nm_rd_2(sc, sc->ac97_base + a); 657 DELAY(1000); 658 return 0; 659 } 660 661 return ENXIO; 662 } 663 664 665 static int 666 neo_write_codec(void *v, u_int8_t a, u_int16_t d) 667 { 668 struct neo_softc *sc; 669 int cnt; 670 671 sc = v; 672 cnt = 3; 673 if (!nm_waitcd(sc)) { 674 while (cnt-- > 0) { 675 nm_wr_2(sc, sc->ac97_base + a, d); 676 if (!nm_waitcd(sc)) { 677 DELAY(1000); 678 return 0; 679 } 680 } 681 } 682 683 return ENXIO; 684 } 685 686 static int 687 neo_attach_codec(void *v, struct ac97_codec_if *codec_if) 688 { 689 struct neo_softc *sc; 690 691 sc = v; 692 sc->codec_if = codec_if; 693 return 0; 694 } 695 696 static int 697 neo_reset_codec(void *v) 698 { 699 struct neo_softc *sc; 700 701 sc = v; 702 nm_wr_1(sc, 0x6c0, 0x01); 703 nm_wr_1(sc, 0x6cc, 0x87); 704 nm_wr_1(sc, 0x6cc, 0x80); 705 nm_wr_1(sc, 0x6cc, 0x00); 706 return 0; 707 } 708 709 static enum ac97_host_flags 710 neo_flags_codec(void *v) 711 { 712 713 return AC97_HOST_DONT_READ; 714 } 715 716 static int 717 neo_query_encoding(void *addr, struct audio_encoding *fp) 718 { 719 720 switch (fp->index) { 721 case 0: 722 strcpy(fp->name, AudioEulinear); 723 fp->encoding = AUDIO_ENCODING_ULINEAR; 724 fp->precision = 8; 725 fp->flags = 0; 726 return 0; 727 case 1: 728 strcpy(fp->name, AudioEmulaw); 729 fp->encoding = AUDIO_ENCODING_ULAW; 730 fp->precision = 8; 731 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 732 return 0; 733 case 2: 734 strcpy(fp->name, AudioEalaw); 735 fp->encoding = AUDIO_ENCODING_ALAW; 736 fp->precision = 8; 737 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 738 return 0; 739 case 3: 740 strcpy(fp->name, AudioEslinear); 741 fp->encoding = AUDIO_ENCODING_SLINEAR; 742 fp->precision = 8; 743 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 744 return (0); 745 case 4: 746 strcpy(fp->name, AudioEslinear_le); 747 fp->encoding = AUDIO_ENCODING_SLINEAR_LE; 748 fp->precision = 16; 749 fp->flags = 0; 750 return 0; 751 case 5: 752 strcpy(fp->name, AudioEulinear_le); 753 fp->encoding = AUDIO_ENCODING_ULINEAR_LE; 754 fp->precision = 16; 755 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 756 return 0; 757 case 6: 758 strcpy(fp->name, AudioEslinear_be); 759 fp->encoding = AUDIO_ENCODING_SLINEAR_BE; 760 fp->precision = 16; 761 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 762 return 0; 763 case 7: 764 strcpy(fp->name, AudioEulinear_be); 765 fp->encoding = AUDIO_ENCODING_ULINEAR_BE; 766 fp->precision = 16; 767 fp->flags = AUDIO_ENCODINGFLAG_EMULATED; 768 return 0; 769 default: 770 return EINVAL; 771 } 772 } 773 774 /* Todo: don't commit settings to card until we've verified all parameters */ 775 static int 776 neo_set_params(void *addr, int setmode, int usemode, 777 audio_params_t *play, audio_params_t *rec, stream_filter_list_t *pfil, 778 stream_filter_list_t *rfil) 779 { 780 struct neo_softc *sc; 781 audio_params_t *p; 782 stream_filter_list_t *fil; 783 uint32_t base; 784 uint8_t x; 785 int mode, i; 786 787 sc = addr; 788 for (mode = AUMODE_RECORD; mode != -1; 789 mode = mode == AUMODE_RECORD ? AUMODE_PLAY : -1) { 790 if ((setmode & mode) == 0) 791 continue; 792 793 p = mode == AUMODE_PLAY ? play : rec; 794 795 if (p == NULL) continue; 796 797 for (x = 0; x < 8; x++) { 798 if (p->sample_rate < 799 (samplerates[x] + samplerates[x + 1]) / 2) 800 break; 801 } 802 if (x == 8) 803 return EINVAL; 804 805 p->sample_rate = samplerates[x]; 806 nm_loadcoeff(sc, mode, x); 807 808 x <<= 4; 809 x &= NM_RATE_MASK; 810 if (p->precision == 16) 811 x |= NM_RATE_BITS_16; 812 if (p->channels == 2) 813 x |= NM_RATE_STEREO; 814 815 base = (mode == AUMODE_PLAY)? 816 NM_PLAYBACK_REG_OFFSET : NM_RECORD_REG_OFFSET; 817 nm_wr_1(sc, base + NM_RATE_REG_OFFSET, x); 818 819 fil = mode == AUMODE_PLAY ? pfil : rfil; 820 i = auconv_set_converter(neo_formats, NEO_NFORMATS, 821 mode, p, FALSE, fil); 822 if (i < 0) 823 return EINVAL; 824 } 825 826 return 0; 827 } 828 829 static int 830 neo_round_blocksize(void *addr, int blk, int mode, 831 const audio_params_t *param) 832 { 833 834 return NM_BUFFSIZE / 2; 835 } 836 837 static int 838 neo_trigger_output(void *addr, void *start, void *end, int blksize, 839 void (*intr)(void *), void *arg, const audio_params_t *param) 840 { 841 struct neo_softc *sc; 842 int ssz; 843 844 sc = addr; 845 sc->pintr = intr; 846 sc->parg = arg; 847 848 ssz = (param->precision == 16) ? 2 : 1; 849 if (param->channels == 2) 850 ssz <<= 1; 851 852 sc->pbufsize = ((char*)end - (char *)start); 853 sc->pblksize = blksize; 854 sc->pwmark = blksize; 855 856 nm_wr_4(sc, NM_PBUFFER_START, sc->pbuf); 857 nm_wr_4(sc, NM_PBUFFER_END, sc->pbuf + sc->pbufsize - ssz); 858 nm_wr_4(sc, NM_PBUFFER_CURRP, sc->pbuf); 859 nm_wr_4(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pwmark); 860 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, NM_PLAYBACK_FREERUN | 861 NM_PLAYBACK_ENABLE_FLAG); 862 nm_wr_2(sc, NM_AUDIO_MUTE_REG, 0); 863 864 return 0; 865 } 866 867 static int 868 neo_trigger_input(void *addr, void *start, void *end, int blksize, 869 void (*intr)(void *), void *arg, const audio_params_t *param) 870 { 871 struct neo_softc *sc; 872 int ssz; 873 874 sc = addr; 875 sc->rintr = intr; 876 sc->rarg = arg; 877 878 ssz = (param->precision == 16) ? 2 : 1; 879 if (param->channels == 2) 880 ssz <<= 1; 881 882 sc->rbufsize = ((char*)end - (char *)start); 883 sc->rblksize = blksize; 884 sc->rwmark = blksize; 885 886 nm_wr_4(sc, NM_RBUFFER_START, sc->rbuf); 887 nm_wr_4(sc, NM_RBUFFER_END, sc->rbuf + sc->rbufsize); 888 nm_wr_4(sc, NM_RBUFFER_CURRP, sc->rbuf); 889 nm_wr_4(sc, NM_RBUFFER_WMARK, sc->rbuf + sc->rwmark); 890 nm_wr_1(sc, NM_RECORD_ENABLE_REG, NM_RECORD_FREERUN | 891 NM_RECORD_ENABLE_FLAG); 892 893 return 0; 894 } 895 896 static int 897 neo_halt_output(void *addr) 898 { 899 struct neo_softc *sc; 900 901 sc = (struct neo_softc *)addr; 902 nm_wr_1(sc, NM_PLAYBACK_ENABLE_REG, 0); 903 nm_wr_2(sc, NM_AUDIO_MUTE_REG, NM_AUDIO_MUTE_BOTH); 904 sc->pintr = 0; 905 906 return 0; 907 } 908 909 static int 910 neo_halt_input(void *addr) 911 { 912 struct neo_softc *sc; 913 914 sc = (struct neo_softc *)addr; 915 nm_wr_1(sc, NM_RECORD_ENABLE_REG, 0); 916 sc->rintr = 0; 917 918 return 0; 919 } 920 921 static int 922 neo_getdev(void *addr, struct audio_device *retp) 923 { 924 925 *retp = neo_device; 926 return 0; 927 } 928 929 static int 930 neo_mixer_set_port(void *addr, mixer_ctrl_t *cp) 931 { 932 struct neo_softc *sc; 933 934 sc = addr; 935 return sc->codec_if->vtbl->mixer_set_port(sc->codec_if, cp); 936 } 937 938 static int 939 neo_mixer_get_port(void *addr, mixer_ctrl_t *cp) 940 { 941 struct neo_softc *sc; 942 943 sc = addr; 944 return sc->codec_if->vtbl->mixer_get_port(sc->codec_if, cp); 945 } 946 947 static int 948 neo_query_devinfo(void *addr, mixer_devinfo_t *dip) 949 { 950 struct neo_softc *sc; 951 952 sc = addr; 953 return sc->codec_if->vtbl->query_devinfo(sc->codec_if, dip); 954 } 955 956 static void * 957 neo_malloc(void *addr, int direction, size_t size) 958 { 959 struct neo_softc *sc; 960 void *rv; 961 962 sc = addr; 963 rv = NULL; 964 switch (direction) { 965 case AUMODE_PLAY: 966 if (sc->pbuf_allocated == 0) { 967 rv = (void *) sc->pbuf_vaddr; 968 sc->pbuf_allocated = 1; 969 } 970 break; 971 972 case AUMODE_RECORD: 973 if (sc->rbuf_allocated == 0) { 974 rv = (void *) sc->rbuf_vaddr; 975 sc->rbuf_allocated = 1; 976 } 977 break; 978 } 979 980 return rv; 981 } 982 983 static void 984 neo_free(void *addr, void *ptr, size_t size) 985 { 986 struct neo_softc *sc; 987 vaddr_t v; 988 989 sc = addr; 990 v = (vaddr_t)ptr; 991 if (v == sc->pbuf_vaddr) 992 sc->pbuf_allocated = 0; 993 else if (v == sc->rbuf_vaddr) 994 sc->rbuf_allocated = 0; 995 else 996 printf("neo_free: bad address %p\n", ptr); 997 } 998 999 static size_t 1000 neo_round_buffersize(void *addr, int direction, size_t size) 1001 { 1002 1003 return NM_BUFFSIZE; 1004 } 1005 1006 static paddr_t 1007 neo_mappage(void *addr, void *mem, off_t off, int prot) 1008 { 1009 struct neo_softc *sc; 1010 vaddr_t v; 1011 bus_addr_t pciaddr; 1012 1013 sc = addr; 1014 v = (vaddr_t)mem; 1015 if (v == sc->pbuf_vaddr) 1016 pciaddr = sc->pbuf_pciaddr; 1017 else if (v == sc->rbuf_vaddr) 1018 pciaddr = sc->rbuf_pciaddr; 1019 else 1020 return -1; 1021 1022 return bus_space_mmap(sc->bufiot, pciaddr, off, prot, 1023 BUS_SPACE_MAP_LINEAR); 1024 } 1025 1026 static int 1027 neo_get_props(void *addr) 1028 { 1029 1030 return AUDIO_PROP_INDEPENDENT | AUDIO_PROP_MMAP | 1031 AUDIO_PROP_FULLDUPLEX; 1032 } 1033 1034 static void 1035 neo_get_locks(void *addr, kmutex_t **intr, kmutex_t **thread) 1036 { 1037 struct neo_softc *sc; 1038 1039 sc = addr; 1040 *intr = &sc->intr_lock; 1041 *thread = &sc->lock; 1042 } 1043
Indexes created Thu Oct 02 10:09:58 GMT 2025