ascaudio.c revision 1.16
1 /* $NetBSD: ascaudio.c,v 1.16 2025/06/04 09:27:09 nat Exp $ */ 2 3 /*- 4 * Copyright (c) 2017, 2023 Nathanial Sloss <nathanialsloss (at) yahoo.com.au> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* Based on pad(4) and asc(4) */ 30 31 #include <sys/cdefs.h> 32 __KERNEL_RCSID(0, "$NetBSD: ascaudio.c,v 1.16 2025/06/04 09:27:09 nat Exp $"); 33 34 #include <sys/types.h> 35 #include <sys/param.h> 36 #include <sys/conf.h> 37 #include <sys/buf.h> 38 #include <sys/kauth.h> 39 #include <sys/kmem.h> 40 #include <sys/kernel.h> 41 #include <sys/device.h> 42 #include <sys/proc.h> 43 #include <sys/audioio.h> 44 #include <sys/module.h> 45 #include <sys/atomic.h> 46 47 #include <uvm/uvm_extern.h> 48 49 #include <dev/audio/audio_if.h> 50 #include <dev/audio/audiovar.h> 51 52 #include <machine/autoconf.h> 53 #include <machine/cpu.h> 54 #include <machine/bus.h> 55 #include <machine/viareg.h> 56 57 #include <mac68k/dev/pm_direct.h> 58 #include <mac68k/obio/ascaudiovar.h> 59 #include <mac68k/obio/ascreg.h> 60 #include <mac68k/obio/obiovar.h> 61 62 #define MAC68K_ASCAUDIO_BASE 0x50f14000 63 #define MAC68K_IIFX_ASCAUDIO_BASE 0x50f10000 64 #define MAC68K_ASCAUDIO_LEN 0x2000 65 66 #define BUFSIZE 32768 67 #define PLAYBLKSIZE 8192 68 #define RECBLKSIZE 1024 69 70 #define ASC_VIA_CLR_INTR() via_reg(VIA2, vIFR) = V2IF_ASC 71 72 static int ascaudiomatch(device_t, cfdata_t, void *); 73 static void ascaudioattach(device_t, device_t, void *); 74 75 CFATTACH_DECL_NEW(ascaudio, sizeof(struct ascaudio_softc), 76 ascaudiomatch, ascaudioattach, NULL, NULL); 77 78 extern struct cfdriver ascaudio_cd; 79 80 dev_type_open(ascaudioopen); 81 dev_type_close(ascaudioclose); 82 dev_type_read(ascaudioread); 83 dev_type_write(ascaudiowrite); 84 dev_type_ioctl(ascaudioioctl); 85 86 const struct cdevsw ascaudio_cdevsw = { 87 .d_open = ascaudioopen, 88 .d_close = ascaudioclose, 89 .d_read = ascaudioread, 90 .d_write = ascaudiowrite, 91 .d_ioctl = ascaudioioctl, 92 .d_stop = nostop, 93 .d_tty = notty, 94 .d_poll = nopoll, 95 .d_mmap = nommap, 96 .d_kqfilter = nokqfilter, 97 .d_discard = nodiscard, 98 .d_flag = 0 99 }; 100 101 static int ascaudio_query_format(void *, struct audio_format_query *); 102 static int ascaudio_set_format(void *, int, 103 const audio_params_t *, const audio_params_t *, 104 audio_filter_reg_t *, audio_filter_reg_t *); 105 static int ascaudio_start_output(void *, void *, int, 106 void (*)(void *), void *); 107 static int ascaudio_start_input(void *, void *, int, 108 void (*)(void *), void *); 109 static int ascaudio_halt_input(void *); 110 static int ascaudio_halt_output(void *); 111 static int ascaudio_set_port(void *, mixer_ctrl_t *); 112 static int ascaudio_get_port(void *, mixer_ctrl_t *); 113 static int ascaudio_getdev(void *, struct audio_device *); 114 static int ascaudio_query_devinfo(void *, mixer_devinfo_t *); 115 static int ascaudio_get_props(void *); 116 static int 117 ascaudio_round_blocksize(void *, int, int, const audio_params_t *); 118 static void ascaudio_get_locks(void *, kmutex_t **, kmutex_t **); 119 static void ascaudio_intr(void *); 120 static int ascaudio_intr_est(void *); 121 static void ascaudio_intr_enable(void); 122 static void ascaudio_done_output(void *); 123 static void ascaudio_done_input(void *); 124 static void configure_dfac(uint8_t); 125 126 static const struct audio_hw_if ascaudio_hw_if = { 127 .query_format = ascaudio_query_format, 128 .set_format = ascaudio_set_format, 129 .start_output = ascaudio_start_output, 130 .start_input = ascaudio_start_input, 131 .halt_output = ascaudio_halt_output, 132 .halt_input = ascaudio_halt_input, 133 .set_port = ascaudio_set_port, 134 .get_port = ascaudio_get_port, 135 .getdev = ascaudio_getdev, 136 .query_devinfo = ascaudio_query_devinfo, 137 .get_props = ascaudio_get_props, 138 .round_blocksize = ascaudio_round_blocksize, 139 .get_locks = ascaudio_get_locks, 140 }; 141 142 enum { 143 ASC_OUTPUT_CLASS, 144 ASC_INPUT_CLASS, 145 ASC_OUTPUT_MASTER_VOLUME, 146 ASC_INPUT_DAC_VOLUME, 147 ASC_ENUM_LAST, 148 }; 149 150 static int 151 ascaudiomatch(device_t parent, cfdata_t cf, void *aux) 152 { 153 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 154 bus_addr_t addr; 155 bus_space_handle_t bsh; 156 int rval = 0; 157 158 if (oa->oa_addr != (-1)) 159 addr = (bus_addr_t)oa->oa_addr; 160 else if (current_mac_model->machineid == MACH_MACTV) 161 return 0; 162 else if (current_mac_model->machineid == MACH_MACIIFX) 163 addr = (bus_addr_t)MAC68K_IIFX_ASCAUDIO_BASE; 164 else 165 addr = (bus_addr_t)MAC68K_ASCAUDIO_BASE; 166 167 if (bus_space_map(oa->oa_tag, addr, MAC68K_ASCAUDIO_LEN, 0, &bsh)) 168 return (0); 169 170 if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0, 1)) { 171 rval = 1; 172 } else 173 rval = 0; 174 175 bus_space_unmap(oa->oa_tag, bsh, MAC68K_ASCAUDIO_LEN); 176 177 return rval; 178 } 179 180 static void 181 ascaudioattach(device_t parent, device_t self, void *aux) 182 { 183 struct ascaudio_softc *sc = device_private(self); 184 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 185 bus_addr_t addr; 186 uint8_t tmp; 187 188 sc->sc_dev = self; 189 sc->sc_tag = oa->oa_tag; 190 191 if (oa->oa_addr != (-1)) 192 addr = (bus_addr_t)oa->oa_addr; 193 else if (current_mac_model->machineid == MACH_MACIIFX) 194 addr = (bus_addr_t)MAC68K_IIFX_ASCAUDIO_BASE; 195 else 196 addr = (bus_addr_t)MAC68K_ASCAUDIO_BASE; 197 if (bus_space_map(sc->sc_tag, addr, MAC68K_ASCAUDIO_LEN, 0, 198 &sc->sc_handle)) { 199 printf(": can't map memory space\n"); 200 return; 201 } 202 203 /* Pull in the options flags. */ 204 sc->sc_options = ((device_cfdata(self)->cf_flags) & 205 ASCAUDIO_OPTIONS_MASK); 206 207 sc->sc_playbuf = kmem_alloc(BUFSIZE, KM_SLEEP); 208 sc->sc_recbuf = kmem_alloc(BUFSIZE, KM_SLEEP); 209 sc->sc_rptr = sc->sc_recbuf; 210 sc->sc_getptr = sc->sc_recbuf; 211 sc->sc_wptr = sc->sc_playbuf; 212 sc->sc_putptr = sc->sc_playbuf; 213 214 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 215 216 sc->sc_ver = bus_space_read_1(oa->oa_tag, sc->sc_handle, 0x800); 217 218 if (sc->sc_options & HIGHQUALITY) { 219 tmp = bus_space_read_1(sc->sc_tag, sc->sc_handle, ASCRATE); 220 switch (tmp) { 221 case 2: 222 sc->sc_rate = 22050; 223 break; 224 case 3: 225 sc->sc_rate = 44100; 226 break; 227 default: 228 sc->sc_rate = 22254; 229 break; 230 } 231 232 tmp = bus_space_read_1(sc->sc_tag, sc->sc_handle, ASCTRL); 233 if (tmp & STEREO) 234 sc->sc_speakers = 2; 235 else 236 sc->sc_speakers = 1; 237 238 } else { 239 __USE(tmp); 240 sc->sc_rate = 22254; 241 sc->sc_speakers = 1; 242 } 243 244 if (sc->sc_options & LOWQUALITY) { 245 sc->sc_slowcpu = true; 246 if (sc->sc_slowcpu) 247 sc->sc_rate /= 2; 248 } 249 250 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) 251 printf(": Enhanced Apple Sound Chip"); 252 else 253 printf(": Apple Sound Chip"); 254 255 if (oa->oa_addr != (-1)) 256 printf(" at %x", oa->oa_addr); 257 printf("\n"); 258 259 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 260 261 if (mac68k_machine.aux_interrupts) { 262 intr_establish(ascaudio_intr_est, sc, ASCIRQ); 263 } else { 264 via2_register_irq(VIA2_ASC, ascaudio_intr, sc); 265 } 266 ascaudio_intr_enable(); 267 268 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE); 269 mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_AUDIO); 270 callout_init(&sc->sc_pcallout, CALLOUT_MPSAFE); 271 callout_setfunc(&sc->sc_pcallout, ascaudio_done_output, sc); 272 callout_init(&sc->sc_rcallout, CALLOUT_MPSAFE); 273 callout_setfunc(&sc->sc_rcallout, ascaudio_done_input, sc); 274 275 sc->sc_vol = 180; 276 sc->sc_recvol = 255; 277 278 sc->sc_audiodev = audio_attach_mi(&ascaudio_hw_if, sc, sc->sc_dev); 279 280 if (!pmf_device_register(sc->sc_dev, NULL, NULL)) 281 aprint_error_dev(sc->sc_dev, 282 "couldn't establish power handler\n"); 283 284 if (sc->sc_ver != EASC_VER && sc->sc_ver != EASC_VER2) 285 return; 286 287 if (sc->sc_options & HIGHQUALITY) 288 tmp = CDQUALITY; 289 else 290 tmp = MACDEFAULTS; 291 292 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOCTRLA, tmp); 293 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOCTRLB, tmp); 294 295 } 296 297 int 298 ascaudioopen(dev_t dev, int flag, int mode, struct lwp *l) 299 { 300 struct ascaudio_softc *sc; 301 302 sc = device_lookup_private(&ascaudio_cd, ASCAUDIOUNIT(dev)); 303 if (sc == NULL) 304 return (ENXIO); 305 if (sc->sc_open) 306 return (EBUSY); 307 sc->sc_open = 1; 308 309 return (0); 310 } 311 312 int 313 ascaudioclose(dev_t dev, int flag, int mode, struct lwp *l) 314 { 315 struct ascaudio_softc *sc; 316 317 sc = device_lookup_private(&ascaudio_cd, ASCAUDIOUNIT(dev)); 318 sc->sc_open = 0; 319 320 return (0); 321 } 322 323 int 324 ascaudioread(dev_t dev, struct uio *uio, int ioflag) 325 { 326 return (ENXIO); 327 } 328 329 int 330 ascaudiowrite(dev_t dev, struct uio *uio, int ioflag) 331 { 332 return (ENXIO); 333 } 334 335 int 336 ascaudioioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) 337 { 338 int error; 339 #ifdef notyet 340 struct ascaudio_softc *sc; 341 int unit = ASCAUDIOUNIT(dev); 342 343 sc = device_lookup_private(&ascaudio_cd, unit); 344 #endif 345 error = 0; 346 347 switch (cmd) { 348 default: 349 error = EINVAL; 350 break; 351 } 352 return (error); 353 } 354 355 #define ASCAUDIO_NFORMATS 3 356 static int 357 ascaudio_query_format(void *opaque, struct audio_format_query *ae) 358 { 359 struct ascaudio_softc *sc = opaque; 360 361 const struct audio_format asc_formats[ASCAUDIO_NFORMATS] = { 362 { .mode = AUMODE_PLAY, 363 .encoding = AUDIO_ENCODING_SLINEAR_BE, 364 .validbits = 8, 365 .precision = 8, 366 .channels = sc->sc_speakers, 367 .channel_mask = sc->sc_speakers == 2 ? AUFMT_STEREO : 368 AUFMT_MONAURAL, 369 .frequency_type = 1, 370 .frequency = { sc->sc_rate }, }, 371 { .mode = AUMODE_RECORD, 372 .encoding = AUDIO_ENCODING_SLINEAR_BE, 373 .validbits = 8, 374 .precision = 8, 375 .channels = 1, 376 .channel_mask = AUFMT_MONAURAL, 377 .frequency_type = 1, 378 .frequency = { 11025 }, }, 379 { .mode = AUMODE_RECORD, 380 .encoding = AUDIO_ENCODING_SLINEAR_BE, 381 .validbits = 8, 382 .precision = 8, 383 .channels = 1, 384 .channel_mask = AUFMT_MONAURAL, 385 .frequency_type = 1, 386 .frequency = { 22050 }, } 387 }; 388 389 return audio_query_format(asc_formats, ASCAUDIO_NFORMATS, ae); 390 } 391 392 static int 393 ascaudio_set_format(void *opaque, int setmode, 394 const audio_params_t *play, const audio_params_t *rec, 395 audio_filter_reg_t *pfil, audio_filter_reg_t *rfil) 396 { 397 struct ascaudio_softc *sc = opaque; 398 399 KASSERT(mutex_owned(&sc->sc_lock)); 400 401 sc->sc_recfreq = rec->sample_rate; 402 403 return 0; 404 } 405 406 static int 407 ascaudio_start_output(void *opaque, void *block, int blksize, 408 void (*intr)(void *), void *intrarg) 409 { 410 struct ascaudio_softc *sc; 411 uint8_t *loc, tmp; 412 int total; 413 414 sc = (struct ascaudio_softc *)opaque; 415 if (!sc) 416 return (ENODEV); 417 418 sc->sc_pintr = intr; 419 sc->sc_pintrarg = intrarg; 420 421 loc = block; 422 if (bus_space_read_1(sc->sc_tag, sc->sc_handle, ASCMODE) != 423 MODEFIFO) { 424 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 425 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCTEST, 0); 426 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, 427 NONCOMP); 428 429 } 430 431 /* set the volume. */ 432 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 433 /* DO NOT CHANGE THESE VALUES UNLESS TESTED. 434 CAN BE VERY LOUD!!!! */ 435 tmp = sc->sc_vol >> 5; 436 KASSERT(tmp <= MACOS_HIGH_VOL); 437 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_LEFT_VOL, tmp); 438 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_LEFT_VOL, tmp); 439 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_RIGHT_VOL, tmp); 440 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_RIGHT_VOL, tmp); 441 } 442 bus_space_write_1(sc->sc_tag, sc->sc_handle, INTVOL, sc->sc_vol); 443 444 total = blksize; 445 if (sc->sc_putptr + blksize >= sc->sc_playbuf + BUFSIZE) 446 total = sc->sc_playbuf + BUFSIZE - sc->sc_putptr; 447 448 if (total) { 449 memcpy(sc->sc_putptr, loc, total); 450 sc->sc_putptr += total; 451 loc += total; 452 } 453 454 total = blksize - total; 455 if (total) { 456 sc->sc_putptr = sc->sc_playbuf; 457 memcpy(sc->sc_playbuf, loc, total); 458 sc->sc_putptr += total; 459 } 460 461 sc->sc_avail += blksize; 462 if (sc->sc_avail > BUFSIZE) 463 sc->sc_avail = BUFSIZE; 464 465 /* start fifo playback */ 466 if ((sc->sc_rintr == NULL) && bus_space_read_1(sc->sc_tag, 467 sc->sc_handle, ASCMODE) != MODEFIFO) 468 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODEFIFO); 469 470 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 471 /* enable interrupts channel b */ 472 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 0); 473 } 474 475 return 0; 476 } 477 478 static int 479 ascaudio_start_input(void *opaque, void *block, int blksize, 480 void (*intr)(void *), void *intrarg) 481 { 482 struct ascaudio_softc *sc; 483 uint8_t tmp; 484 int total; 485 486 sc = (struct ascaudio_softc *)opaque; 487 if (!sc) 488 return (ENODEV); 489 490 uint8_t *loc; 491 loc = block; 492 493 sc->sc_rintr = intr; 494 sc->sc_rintrarg = intrarg; 495 496 if (bus_space_read_1(sc->sc_tag, sc->sc_handle, ASCMODE) != 497 MODEFIFO) { 498 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 499 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCTEST, 0); 500 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, 501 NONCOMP); 502 memset(loc, 0x80, blksize); 503 } 504 505 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 506 /* 507 * Set up dfac for microphone. 508 * DO NOT SET BITS 5-7 due to loud feedback squeal. 509 */ 510 configure_dfac(DFAC_GAIN_HIGH); 511 } 512 513 tmp = RECORDA; 514 if (sc->sc_recfreq == 22050) 515 tmp |= REC22KHZ; 516 bus_space_write_1(sc->sc_tag, sc->sc_handle, APLAYREC, tmp); 517 518 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 519 /* enable interrupts channel a */ 520 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, 0); 521 } 522 523 /* start fifo playback */ 524 if ((sc->sc_pintr == NULL) && bus_space_read_1(sc->sc_tag, 525 sc->sc_handle, ASCMODE) != MODEFIFO) { 526 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODEFIFO); 527 528 return 0; 529 } 530 531 /* set the volume. */ 532 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 533 /* DO NOT CHANGE THESE VALUES UNLESS TESTED. 534 CAN BE VERY LOUD!!!! */ 535 tmp = sc->sc_recvol >> 5; 536 KASSERT(tmp <= MACOS_HIGH_VOL); 537 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_LEFT_VOL, tmp); 538 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_LEFT_VOL, tmp); 539 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_RIGHT_VOL, tmp); 540 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_RIGHT_VOL, tmp); 541 } 542 bus_space_write_1(sc->sc_tag, sc->sc_handle, INTVOL, sc->sc_recvol); 543 544 total = blksize; 545 if (sc->sc_getptr + blksize >= sc->sc_recbuf + BUFSIZE) 546 total = sc->sc_recbuf + BUFSIZE - sc->sc_getptr; 547 548 if (total) { 549 memcpy(loc, sc->sc_getptr, total); 550 sc->sc_getptr += total; 551 loc += total; 552 } 553 554 total = blksize - total; 555 if (total) { 556 sc->sc_getptr = sc->sc_recbuf; 557 memcpy(loc, sc->sc_getptr, total); 558 sc->sc_getptr += total; 559 } 560 561 sc->sc_recavail -= blksize; 562 563 return 0; 564 } 565 566 static int 567 ascaudio_halt_input(void *opaque) 568 { 569 ascaudio_softc_t *sc; 570 571 sc = (ascaudio_softc_t *)opaque; 572 573 KASSERT(mutex_owned(&sc->sc_lock)); 574 575 callout_halt(&sc->sc_rcallout, &sc->sc_intr_lock); 576 577 sc->sc_rintr = NULL; 578 sc->sc_rintrarg = NULL; 579 sc->sc_recavail = 0; 580 581 bus_space_write_1(sc->sc_tag, sc->sc_handle, APLAYREC, 0); 582 583 if (sc->sc_pintr == NULL) { 584 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 585 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, 586 CLEARFIFO); 587 } 588 589 sc->sc_rptr = sc->sc_recbuf; 590 sc->sc_getptr = sc->sc_recbuf; 591 592 if (sc->sc_ver != EASC_VER && sc->sc_ver != EASC_VER2) 593 return 0; 594 595 configure_dfac(DFAC_DISABLE); 596 597 /* disable half interrupts channel a */ 598 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, DISABLEHALFIRQ); 599 600 return 0; 601 } 602 603 static int 604 ascaudio_halt_output(void *opaque) 605 { 606 ascaudio_softc_t *sc; 607 608 sc = (ascaudio_softc_t *)opaque; 609 610 KASSERT(mutex_owned(&sc->sc_lock)); 611 612 callout_halt(&sc->sc_pcallout, &sc->sc_intr_lock); 613 614 sc->sc_pintr = NULL; 615 sc->sc_pintrarg = NULL; 616 sc->sc_avail = 0; 617 618 if (sc->sc_rintr == NULL) { 619 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 620 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, 621 CLEARFIFO); 622 } 623 624 sc->sc_wptr = sc->sc_playbuf; 625 sc->sc_putptr = sc->sc_playbuf; 626 627 if (sc->sc_ver != EASC_VER && sc->sc_ver != EASC_VER2) 628 return 0; 629 630 /* disable half interrupts channel b */ 631 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, DISABLEHALFIRQ); 632 633 return 0; 634 } 635 636 static int 637 ascaudio_getdev(void *opaque, struct audio_device *ret) 638 { 639 strlcpy(ret->name, "Apple ASC Audio", sizeof(ret->name)); 640 strlcpy(ret->version, osrelease, sizeof(ret->version)); 641 strlcpy(ret->config, "ascaudio", sizeof(ret->config)); 642 643 return 0; 644 } 645 646 static int 647 ascaudio_set_port(void *opaque, mixer_ctrl_t *mc) 648 { 649 struct ascaudio_softc *sc = opaque; 650 651 KASSERT(mutex_owned(&sc->sc_lock)); 652 653 switch (mc->dev) { 654 case ASC_OUTPUT_MASTER_VOLUME: 655 if (mc->un.value.num_channels != 1) 656 return EINVAL; 657 sc->sc_vol = mc->un.value.level[AUDIO_MIXER_LEVEL_MONO]; 658 return 0; 659 case ASC_INPUT_DAC_VOLUME: 660 if (mc->un.value.num_channels != 1) 661 return EINVAL; 662 sc->sc_recvol = mc->un.value.level[AUDIO_MIXER_LEVEL_MONO]; 663 return 0; 664 } 665 666 return ENXIO; 667 } 668 669 static int 670 ascaudio_get_port(void *opaque, mixer_ctrl_t *mc) 671 { 672 struct ascaudio_softc *sc = opaque; 673 674 KASSERT(mutex_owned(&sc->sc_lock)); 675 676 switch (mc->dev) { 677 case ASC_OUTPUT_MASTER_VOLUME: 678 if (mc->un.value.num_channels != 1) 679 return EINVAL; 680 mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_vol; 681 return 0; 682 case ASC_INPUT_DAC_VOLUME: 683 if (mc->un.value.num_channels != 1) 684 return EINVAL; 685 mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_recvol; 686 return 0; 687 } 688 689 return ENXIO; 690 } 691 692 static int 693 ascaudio_query_devinfo(void *opaque, mixer_devinfo_t *di) 694 { 695 ascaudio_softc_t *sc __diagused; 696 697 sc = (ascaudio_softc_t *)opaque; 698 699 KASSERT(mutex_owned(&sc->sc_lock)); 700 701 switch (di->index) { 702 case ASC_OUTPUT_CLASS: 703 di->mixer_class = ASC_OUTPUT_CLASS; 704 strcpy(di->label.name, AudioCoutputs); 705 di->type = AUDIO_MIXER_CLASS; 706 di->next = di->prev = AUDIO_MIXER_LAST; 707 return 0; 708 case ASC_INPUT_CLASS: 709 di->mixer_class = ASC_INPUT_CLASS; 710 strcpy(di->label.name, AudioCinputs); 711 di->type = AUDIO_MIXER_CLASS; 712 di->next = di->prev = AUDIO_MIXER_LAST; 713 return 0; 714 case ASC_OUTPUT_MASTER_VOLUME: 715 di->mixer_class = ASC_OUTPUT_CLASS; 716 strcpy(di->label.name, AudioNmaster); 717 di->type = AUDIO_MIXER_VALUE; 718 di->next = di->prev = AUDIO_MIXER_LAST; 719 di->un.v.num_channels = 1; 720 strcpy(di->un.v.units.name, AudioNvolume); 721 return 0; 722 case ASC_INPUT_DAC_VOLUME: 723 di->mixer_class = ASC_INPUT_CLASS; 724 strcpy(di->label.name, AudioNdac); 725 di->type = AUDIO_MIXER_VALUE; 726 di->next = di->prev = AUDIO_MIXER_LAST; 727 di->un.v.num_channels = 1; 728 strcpy(di->un.v.units.name, AudioNvolume); 729 return 0; 730 } 731 732 return ENXIO; 733 } 734 735 static int 736 ascaudio_get_props(void *opaque) 737 { 738 739 return AUDIO_PROP_PLAYBACK | AUDIO_PROP_CAPTURE | 740 AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX; 741 } 742 743 static int 744 ascaudio_round_blocksize(void *opaque, int blksize, int mode, 745 const audio_params_t *p) 746 { 747 ascaudio_softc_t *sc __diagused; 748 749 sc = (ascaudio_softc_t *)opaque; 750 KASSERT(mutex_owned(&sc->sc_lock)); 751 752 if (mode == AUMODE_PLAY) 753 return PLAYBLKSIZE; 754 else 755 return RECBLKSIZE; 756 } 757 758 static void 759 ascaudio_get_locks(void *opaque, kmutex_t **intr, kmutex_t **thread) 760 { 761 ascaudio_softc_t *sc; 762 763 sc = (ascaudio_softc_t *)opaque; 764 765 *intr = &sc->sc_intr_lock; 766 *thread = &sc->sc_lock; 767 } 768 769 static int 770 ascaudio_intr_est(void *arg) 771 { 772 ascaudio_intr(arg); 773 774 return 0; 775 } 776 777 static void 778 ascaudio_intr(void *arg) 779 { 780 struct ascaudio_softc *sc = arg; 781 uint8_t status; 782 int8_t val; 783 int loc_a, loc_b, total, count, i; 784 785 if (!sc) 786 return; 787 788 if (!sc->sc_pintr && !sc->sc_rintr) 789 return; 790 791 mutex_enter(&sc->sc_intr_lock); 792 793 status = bus_space_read_1(sc->sc_tag, sc->sc_handle, FIFOSTATUS); 794 795 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 796 if (sc->sc_rintr) { 797 bus_space_write_1(sc->sc_tag, sc->sc_handle, 798 IRQA, DISABLEHALFIRQ); 799 } 800 if (sc->sc_pintr) { 801 bus_space_write_1(sc->sc_tag, sc->sc_handle, 802 IRQB, DISABLEHALFIRQ); 803 } 804 } 805 806 if (!(status & A_HALF)) 807 count = 0x200; 808 else 809 count = 0; 810 811 if (count && sc->sc_rintr) { 812 total = count; 813 if (sc->sc_rptr + count >= sc->sc_recbuf + BUFSIZE) 814 count = sc->sc_recbuf + BUFSIZE - sc->sc_rptr; 815 while (total) { 816 if (sc->sc_ver == EASC_VER2) { 817 loc_a = FIFO_A_ALT; 818 loc_b = FIFO_B_ALT; 819 } else { 820 loc_a = FIFO_A; 821 loc_b = 0; 822 } 823 for (i = 0; i < count; i++) { 824 val = bus_space_read_1(sc->sc_tag, 825 sc->sc_handle, loc_a); 826 val ^= 0x80; 827 val = val * sc->sc_recvol / 64; 828 *sc->sc_rptr++ = val; 829 if (sc->sc_pintr == NULL && loc_b) { 830 (void)bus_space_read_1 831 (sc->sc_tag, sc->sc_handle, loc_b); 832 } 833 } 834 if (sc->sc_rptr >= sc->sc_recbuf + BUFSIZE) 835 sc->sc_rptr = sc->sc_recbuf; 836 total -= count; 837 sc->sc_recavail += count; 838 count = total; 839 } 840 841 if (sc->sc_recavail > BUFSIZE) 842 sc->sc_recavail = BUFSIZE; 843 } 844 845 if (sc->sc_pintr == NULL) 846 goto more; 847 848 if (status & B_HALF) 849 count = 0x200; 850 else 851 count = 0; 852 853 if (sc->sc_slowcpu) 854 count /= 2; 855 856 if (count && sc->sc_avail < count) { 857 if (sc->sc_avail) { 858 count = sc->sc_avail; 859 goto fill_fifo; 860 } 861 if (sc->sc_pintr) { 862 for (i = 0; i < 0x200; i++) { 863 if (sc->sc_rintr == NULL) { 864 bus_space_write_1(sc->sc_tag, 865 sc->sc_handle, FIFO_A, 0x80); 866 } 867 bus_space_write_1(sc->sc_tag, 868 sc->sc_handle, FIFO_B, 0x80); 869 } 870 } else { 871 if (sc->sc_slowcpu) 872 count *= 2; 873 for (i = 0; i < count; i++) { 874 bus_space_write_1(sc->sc_tag, 875 sc->sc_handle, FIFO_B, 0x80); 876 } 877 } 878 goto more; 879 } 880 881 fill_fifo: 882 total = count; 883 if (sc->sc_wptr + count >= sc->sc_playbuf + BUFSIZE) 884 count = sc->sc_playbuf + BUFSIZE - sc->sc_wptr; 885 886 while (total) { 887 if (sc->sc_slowcpu) { 888 for (i = 0; i < count; i++) { 889 val = *sc->sc_wptr++; 890 val ^= 0x80; 891 if (sc->sc_rintr == NULL) { 892 bus_space_write_1(sc->sc_tag, 893 sc->sc_handle, FIFO_A, val); 894 bus_space_write_1(sc->sc_tag, 895 sc->sc_handle, FIFO_A, val); 896 } 897 bus_space_write_1(sc->sc_tag, 898 sc->sc_handle, FIFO_B, val); 899 bus_space_write_1(sc->sc_tag, 900 sc->sc_handle, FIFO_B, val); 901 } 902 } else { 903 for (i = 0; i < count; i++) { 904 val = *sc->sc_wptr++; 905 val ^= 0x80; 906 if (sc->sc_rintr == NULL) { 907 bus_space_write_1(sc->sc_tag, 908 sc->sc_handle, FIFO_A, val); 909 } 910 bus_space_write_1(sc->sc_tag, 911 sc->sc_handle, FIFO_B, val); 912 } 913 } 914 if (sc->sc_wptr >= sc->sc_playbuf + BUFSIZE) 915 sc->sc_wptr = sc->sc_playbuf; 916 total -= count; 917 sc->sc_avail -= count; 918 count = total; 919 } 920 921 more: 922 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 923 if (sc->sc_rintr) 924 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, 0); 925 if (sc->sc_pintr) 926 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 0); 927 } 928 929 if (sc->sc_pintr && (sc->sc_avail <= PLAYBLKSIZE)) 930 callout_schedule(&sc->sc_pcallout, 0); 931 932 if (sc->sc_rintr && (sc->sc_recavail >= RECBLKSIZE)) 933 callout_schedule(&sc->sc_rcallout, 0); 934 935 mutex_exit(&sc->sc_intr_lock); 936 } 937 938 static void 939 ascaudio_intr_enable(void) 940 { 941 int s; 942 943 s = splhigh(); 944 if (VIA2 == VIA2OFF) 945 via2_reg(vIER) = 0x80 | V2IF_ASC; 946 else 947 via2_reg(rIER) = 0x80 | V2IF_ASC; 948 splx(s); 949 } 950 951 static void 952 ascaudio_done_output(void *arg) 953 { 954 struct ascaudio_softc *sc = arg; 955 956 mutex_enter(&sc->sc_intr_lock); 957 if (sc->sc_pintr) 958 (*sc->sc_pintr)(sc->sc_pintrarg); 959 mutex_exit(&sc->sc_intr_lock); 960 } 961 962 static void 963 ascaudio_done_input(void *arg) 964 { 965 struct ascaudio_softc *sc = arg; 966 967 mutex_enter(&sc->sc_intr_lock); 968 if (sc->sc_rintr) 969 (*sc->sc_rintr)(sc->sc_rintrarg); 970 mutex_exit(&sc->sc_intr_lock); 971 } 972 973 static void 974 configure_dfac(uint8_t config) 975 { 976 int i; 977 978 if (pmHardware == PM_HW_PB5XX) 979 return; /* These macs use the pm to configure dfac */ 980 981 for (i = 0; i < 8; i++) { 982 via_reg(VIA2, vBufB) &= ~DFAC_CLOCK; 983 984 if (config & 0x1) 985 via_reg(VIA2, vBufB) |= DFAC_DATA; 986 else 987 via_reg(VIA2, vBufB) &= ~DFAC_DATA; 988 989 via_reg(VIA2, vBufB) |= DFAC_CLOCK; 990 config >>= 1; 991 } 992 via_reg(VIA2, vBufB) &= ~DFAC_CLOCK; 993 via_reg(VIA2, vBufB) |= DFAC_LATCH; 994 via_reg(VIA2, vBufB) &= ~DFAC_LATCH; 995 } 996 997 #ifdef _MODULE 998 999 MODULE(MODULE_CLASS_DRIVER, ascaudio, "audio"); 1000 1001 static const struct cfiattrdata audiobuscf_iattrdata = { 1002 "audiobus", 0, { { NULL, NULL, 0 }, } 1003 }; 1004 static const struct cfiattrdata * const ascaudio_attrs[] = { 1005 &audiobuscf_iattrdata, NULL 1006 }; 1007 1008 CFDRIVER_DECL(ascaudio, DV_DULL, ascaud_attrs); 1009 extern struct cfattach ascaudio_ca; 1010 static int ascaudioloc[] = { -1, -1 }; 1011 1012 static struct cfdata ascaudio_cfdata[] = { 1013 { 1014 .cf_name = "ascaudio", 1015 .cf_atname = "ascaudio", 1016 .cf_unit = 0, 1017 .cf_fstate = FSTATE_STAR, 1018 .cf_loc = ascaudioloc, 1019 .cf_flags = 0, 1020 .cf_pspec = NULL, 1021 }, 1022 { NULL, NULL, 0, 0, NULL, 0, NULL } 1023 }; 1024 1025 static int 1026 ascaudio_modcmd(modcmd_t cmd, void *arg) 1027 { 1028 devmajor_t cmajor = NODEVMAJOR, bmajor = NODEVMAJOR; 1029 int error; 1030 1031 switch (cmd) { 1032 case MODULE_CMD_INIT: 1033 error = config_cfdriver_attach(&ascaudio_cd); 1034 if (error) { 1035 return error; 1036 } 1037 1038 error = config_cfattach_attach(ascaudio_cd.cd_name, &ascaud_ca); 1039 if (error) { 1040 config_cfdriver_detach(&ascaudio_cd); 1041 aprint_error("%s: unable to register cfattach\n", 1042 ascaudio_cd.cd_name); 1043 1044 return error; 1045 } 1046 1047 error = config_cfdata_attach(ascaudio_cfdata, 1); 1048 if (error) { 1049 config_cfattach_detach(ascaudio_cd.cd_name, &ascaud_ca); 1050 config_cfdriver_detach(&ascaudio_cd); 1051 aprint_error("%s: unable to register cfdata\n", 1052 ascaudio_cd.cd_name); 1053 1054 return error; 1055 } 1056 1057 error = devsw_attach(ascaudio_cd.cd_name, NULL, &bmajor, 1058 &ascaudio_cdevsw, &cmajor); 1059 if (error) { 1060 error = config_cfdata_detach(ascaudio_cfdata); 1061 if (error) { 1062 return error; 1063 } 1064 config_cfattach_detach(ascaudio_cd.cd_name, &ascaud_ca); 1065 config_cfdriver_detach(&ascaudio_cd); 1066 aprint_error("%s: unable to register devsw\n", 1067 ascaudio_cd.cd_name); 1068 1069 return error; 1070 } 1071 1072 (void)config_attach_pseudo(ascaudio_cfdata); 1073 1074 return 0; 1075 case MODULE_CMD_FINI: 1076 error = config_cfdata_detach(ascaudio_cfdata); 1077 if (error) { 1078 return error; 1079 } 1080 1081 config_cfattach_detach(ascaudio_cd.cd_name, &ascaud_ca); 1082 config_cfdriver_detach(&ascaudio_cd); 1083 devsw_detach(NULL, &ascaudio_cdevsw); 1084 1085 return 0; 1086 default: 1087 return ENOTTY; 1088 } 1089 } 1090 1091 #endif 1092
Indexes created Fri Oct 03 15:10:06 GMT 2025