ascaudio.c revision 1.17
1 /* $NetBSD: ascaudio.c,v 1.17 2025/06/04 15:09:47 nat Exp $ */ 2 3 /*- 4 * Copyright (c) 2017, 2023, 2025 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 1.17 2025/06/04 15:09:47 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, B_LEFT_VOL, tmp); 438 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_RIGHT_VOL, tmp); 439 if (sc->sc_rintr == NULL) { 440 bus_space_write_1(sc->sc_tag, sc->sc_handle, 441 A_LEFT_VOL, tmp); 442 bus_space_write_1(sc->sc_tag, sc->sc_handle, 443 A_RIGHT_VOL, tmp); 444 } 445 } 446 bus_space_write_1(sc->sc_tag, sc->sc_handle, INTVOL, sc->sc_vol); 447 448 total = blksize; 449 if (sc->sc_putptr + blksize >= sc->sc_playbuf + BUFSIZE) 450 total = sc->sc_playbuf + BUFSIZE - sc->sc_putptr; 451 452 if (total) { 453 memcpy(sc->sc_putptr, loc, total); 454 sc->sc_putptr += total; 455 loc += total; 456 } 457 458 total = blksize - total; 459 if (total) { 460 sc->sc_putptr = sc->sc_playbuf; 461 memcpy(sc->sc_playbuf, loc, total); 462 sc->sc_putptr += total; 463 } 464 465 sc->sc_avail += blksize; 466 if (sc->sc_avail > BUFSIZE) 467 sc->sc_avail = BUFSIZE; 468 469 /* start fifo playback */ 470 if ((sc->sc_rintr == NULL) && bus_space_read_1(sc->sc_tag, 471 sc->sc_handle, ASCMODE) != MODEFIFO) 472 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODEFIFO); 473 474 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 475 /* enable interrupts channel b */ 476 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 0); 477 } 478 479 return 0; 480 } 481 482 static int 483 ascaudio_start_input(void *opaque, void *block, int blksize, 484 void (*intr)(void *), void *intrarg) 485 { 486 struct ascaudio_softc *sc; 487 uint8_t tmp; 488 int total; 489 490 sc = (struct ascaudio_softc *)opaque; 491 if (!sc) 492 return (ENODEV); 493 494 uint8_t *loc; 495 loc = block; 496 497 sc->sc_rintr = intr; 498 sc->sc_rintrarg = intrarg; 499 500 if (bus_space_read_1(sc->sc_tag, sc->sc_handle, ASCMODE) != 501 MODEFIFO) { 502 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 503 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCTEST, 0); 504 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, 505 NONCOMP); 506 memset(loc, 0x80, blksize); 507 } 508 509 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 510 /* 511 * Set up dfac for microphone. 512 * DO NOT SET BITS 5-7 due to loud feedback squeal. 513 */ 514 configure_dfac(DFAC_GAIN_HIGH); 515 } 516 517 tmp = RECORDA; 518 if (sc->sc_recfreq == 22050) 519 tmp |= REC22KHZ; 520 bus_space_write_1(sc->sc_tag, sc->sc_handle, APLAYREC, tmp); 521 522 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 523 /* enable interrupts channel a */ 524 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, 0); 525 } 526 527 /* start fifo playback */ 528 if ((sc->sc_pintr == NULL) && bus_space_read_1(sc->sc_tag, 529 sc->sc_handle, ASCMODE) != MODEFIFO) { 530 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODEFIFO); 531 532 return 0; 533 } 534 535 /* set the volume. */ 536 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 537 /* DO NOT CHANGE THESE VALUES UNLESS TESTED. 538 CAN BE VERY LOUD!!!! */ 539 tmp = sc->sc_recvol >> 5; 540 KASSERT(tmp <= MACOS_HIGH_VOL); 541 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_LEFT_VOL, tmp); 542 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_RIGHT_VOL, tmp); 543 if (sc->sc_pintr == NULL) { 544 bus_space_write_1(sc->sc_tag, sc->sc_handle, 545 B_LEFT_VOL, tmp); 546 bus_space_write_1(sc->sc_tag, sc->sc_handle, 547 B_RIGHT_VOL, tmp); 548 } 549 } 550 if (sc->sc_pintr == NULL) { 551 bus_space_write_1(sc->sc_tag, sc->sc_handle, INTVOL, 552 sc->sc_recvol); 553 } 554 555 total = blksize; 556 if (sc->sc_getptr + blksize >= sc->sc_recbuf + BUFSIZE) 557 total = sc->sc_recbuf + BUFSIZE - sc->sc_getptr; 558 559 if (total) { 560 memcpy(loc, sc->sc_getptr, total); 561 sc->sc_getptr += total; 562 loc += total; 563 } 564 565 total = blksize - total; 566 if (total) { 567 sc->sc_getptr = sc->sc_recbuf; 568 memcpy(loc, sc->sc_getptr, total); 569 sc->sc_getptr += total; 570 } 571 572 sc->sc_recavail -= blksize; 573 574 return 0; 575 } 576 577 static int 578 ascaudio_halt_input(void *opaque) 579 { 580 ascaudio_softc_t *sc; 581 582 sc = (ascaudio_softc_t *)opaque; 583 584 KASSERT(mutex_owned(&sc->sc_lock)); 585 586 callout_halt(&sc->sc_rcallout, &sc->sc_intr_lock); 587 588 sc->sc_rintr = NULL; 589 sc->sc_rintrarg = NULL; 590 sc->sc_recavail = 0; 591 592 bus_space_write_1(sc->sc_tag, sc->sc_handle, APLAYREC, 0); 593 594 if (sc->sc_pintr == NULL) { 595 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 596 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, 597 CLEARFIFO); 598 } 599 600 sc->sc_rptr = sc->sc_recbuf; 601 sc->sc_getptr = sc->sc_recbuf; 602 603 if (sc->sc_ver != EASC_VER && sc->sc_ver != EASC_VER2) 604 return 0; 605 606 configure_dfac(DFAC_DISABLE); 607 608 /* disable half interrupts channel a */ 609 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, DISABLEHALFIRQ); 610 611 return 0; 612 } 613 614 static int 615 ascaudio_halt_output(void *opaque) 616 { 617 ascaudio_softc_t *sc; 618 619 sc = (ascaudio_softc_t *)opaque; 620 621 KASSERT(mutex_owned(&sc->sc_lock)); 622 623 callout_halt(&sc->sc_pcallout, &sc->sc_intr_lock); 624 625 sc->sc_pintr = NULL; 626 sc->sc_pintrarg = NULL; 627 sc->sc_avail = 0; 628 629 if (sc->sc_rintr == NULL) { 630 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 631 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, 632 CLEARFIFO); 633 } 634 635 sc->sc_wptr = sc->sc_playbuf; 636 sc->sc_putptr = sc->sc_playbuf; 637 638 if (sc->sc_ver != EASC_VER && sc->sc_ver != EASC_VER2) 639 return 0; 640 641 /* disable half interrupts channel b */ 642 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, DISABLEHALFIRQ); 643 644 return 0; 645 } 646 647 static int 648 ascaudio_getdev(void *opaque, struct audio_device *ret) 649 { 650 strlcpy(ret->name, "Apple ASC Audio", sizeof(ret->name)); 651 strlcpy(ret->version, osrelease, sizeof(ret->version)); 652 strlcpy(ret->config, "ascaudio", sizeof(ret->config)); 653 654 return 0; 655 } 656 657 static int 658 ascaudio_set_port(void *opaque, mixer_ctrl_t *mc) 659 { 660 struct ascaudio_softc *sc = opaque; 661 662 KASSERT(mutex_owned(&sc->sc_lock)); 663 664 switch (mc->dev) { 665 case ASC_OUTPUT_MASTER_VOLUME: 666 if (mc->un.value.num_channels != 1) 667 return EINVAL; 668 sc->sc_vol = mc->un.value.level[AUDIO_MIXER_LEVEL_MONO]; 669 return 0; 670 case ASC_INPUT_DAC_VOLUME: 671 if (mc->un.value.num_channels != 1) 672 return EINVAL; 673 sc->sc_recvol = mc->un.value.level[AUDIO_MIXER_LEVEL_MONO]; 674 return 0; 675 } 676 677 return ENXIO; 678 } 679 680 static int 681 ascaudio_get_port(void *opaque, mixer_ctrl_t *mc) 682 { 683 struct ascaudio_softc *sc = opaque; 684 685 KASSERT(mutex_owned(&sc->sc_lock)); 686 687 switch (mc->dev) { 688 case ASC_OUTPUT_MASTER_VOLUME: 689 if (mc->un.value.num_channels != 1) 690 return EINVAL; 691 mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_vol; 692 return 0; 693 case ASC_INPUT_DAC_VOLUME: 694 if (mc->un.value.num_channels != 1) 695 return EINVAL; 696 mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_recvol; 697 return 0; 698 } 699 700 return ENXIO; 701 } 702 703 static int 704 ascaudio_query_devinfo(void *opaque, mixer_devinfo_t *di) 705 { 706 ascaudio_softc_t *sc __diagused; 707 708 sc = (ascaudio_softc_t *)opaque; 709 710 KASSERT(mutex_owned(&sc->sc_lock)); 711 712 switch (di->index) { 713 case ASC_OUTPUT_CLASS: 714 di->mixer_class = ASC_OUTPUT_CLASS; 715 strcpy(di->label.name, AudioCoutputs); 716 di->type = AUDIO_MIXER_CLASS; 717 di->next = di->prev = AUDIO_MIXER_LAST; 718 return 0; 719 case ASC_INPUT_CLASS: 720 di->mixer_class = ASC_INPUT_CLASS; 721 strcpy(di->label.name, AudioCinputs); 722 di->type = AUDIO_MIXER_CLASS; 723 di->next = di->prev = AUDIO_MIXER_LAST; 724 return 0; 725 case ASC_OUTPUT_MASTER_VOLUME: 726 di->mixer_class = ASC_OUTPUT_CLASS; 727 strcpy(di->label.name, AudioNmaster); 728 di->type = AUDIO_MIXER_VALUE; 729 di->next = di->prev = AUDIO_MIXER_LAST; 730 di->un.v.num_channels = 1; 731 strcpy(di->un.v.units.name, AudioNvolume); 732 return 0; 733 case ASC_INPUT_DAC_VOLUME: 734 di->mixer_class = ASC_INPUT_CLASS; 735 strcpy(di->label.name, AudioNdac); 736 di->type = AUDIO_MIXER_VALUE; 737 di->next = di->prev = AUDIO_MIXER_LAST; 738 di->un.v.num_channels = 1; 739 strcpy(di->un.v.units.name, AudioNvolume); 740 return 0; 741 } 742 743 return ENXIO; 744 } 745 746 static int 747 ascaudio_get_props(void *opaque) 748 { 749 750 return AUDIO_PROP_PLAYBACK | AUDIO_PROP_CAPTURE | 751 AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX; 752 } 753 754 static int 755 ascaudio_round_blocksize(void *opaque, int blksize, int mode, 756 const audio_params_t *p) 757 { 758 ascaudio_softc_t *sc __diagused; 759 760 sc = (ascaudio_softc_t *)opaque; 761 KASSERT(mutex_owned(&sc->sc_lock)); 762 763 if (mode == AUMODE_PLAY) 764 return PLAYBLKSIZE; 765 else 766 return RECBLKSIZE; 767 } 768 769 static void 770 ascaudio_get_locks(void *opaque, kmutex_t **intr, kmutex_t **thread) 771 { 772 ascaudio_softc_t *sc; 773 774 sc = (ascaudio_softc_t *)opaque; 775 776 *intr = &sc->sc_intr_lock; 777 *thread = &sc->sc_lock; 778 } 779 780 static int 781 ascaudio_intr_est(void *arg) 782 { 783 ascaudio_intr(arg); 784 785 return 0; 786 } 787 788 static void 789 ascaudio_intr(void *arg) 790 { 791 struct ascaudio_softc *sc = arg; 792 uint8_t status; 793 int8_t val; 794 int loc_a, loc_b, total, count, i; 795 796 if (!sc) 797 return; 798 799 if (!sc->sc_pintr && !sc->sc_rintr) 800 return; 801 802 mutex_enter(&sc->sc_intr_lock); 803 804 status = bus_space_read_1(sc->sc_tag, sc->sc_handle, FIFOSTATUS); 805 806 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 807 if (sc->sc_rintr) { 808 bus_space_write_1(sc->sc_tag, sc->sc_handle, 809 IRQA, DISABLEHALFIRQ); 810 } 811 if (sc->sc_pintr) { 812 bus_space_write_1(sc->sc_tag, sc->sc_handle, 813 IRQB, DISABLEHALFIRQ); 814 } 815 } 816 817 if (!(status & A_HALF)) 818 count = 0x200; 819 else 820 count = 0; 821 822 if (count && sc->sc_rintr) { 823 total = count; 824 if (sc->sc_rptr + count >= sc->sc_recbuf + BUFSIZE) 825 count = sc->sc_recbuf + BUFSIZE - sc->sc_rptr; 826 while (total) { 827 if (sc->sc_ver == EASC_VER2) { 828 loc_a = FIFO_A_ALT; 829 loc_b = FIFO_B_ALT; 830 } else { 831 loc_a = FIFO_A; 832 loc_b = 0; 833 } 834 for (i = 0; i < count; i++) { 835 val = bus_space_read_1(sc->sc_tag, 836 sc->sc_handle, loc_a); 837 val ^= 0x80; 838 val = val * sc->sc_recvol / 64; 839 *sc->sc_rptr++ = val; 840 if (sc->sc_pintr == NULL && loc_b) { 841 (void)bus_space_read_1 842 (sc->sc_tag, sc->sc_handle, loc_b); 843 } 844 } 845 if (sc->sc_rptr >= sc->sc_recbuf + BUFSIZE) 846 sc->sc_rptr = sc->sc_recbuf; 847 total -= count; 848 sc->sc_recavail += count; 849 count = total; 850 } 851 852 if (sc->sc_recavail > BUFSIZE) 853 sc->sc_recavail = BUFSIZE; 854 } 855 856 if (sc->sc_pintr == NULL) 857 goto more; 858 859 if (status & B_HALF) 860 count = 0x200; 861 else 862 count = 0; 863 864 if (sc->sc_slowcpu) 865 count /= 2; 866 867 if (count && sc->sc_avail < count) { 868 if (sc->sc_avail) { 869 count = sc->sc_avail; 870 goto fill_fifo; 871 } 872 if (sc->sc_pintr) { 873 for (i = 0; i < 0x200; i++) { 874 if (sc->sc_rintr == NULL) { 875 bus_space_write_1(sc->sc_tag, 876 sc->sc_handle, FIFO_A, 0x80); 877 } 878 bus_space_write_1(sc->sc_tag, 879 sc->sc_handle, FIFO_B, 0x80); 880 } 881 } else { 882 if (sc->sc_slowcpu) 883 count *= 2; 884 for (i = 0; i < count; i++) { 885 bus_space_write_1(sc->sc_tag, 886 sc->sc_handle, FIFO_B, 0x80); 887 } 888 } 889 goto more; 890 } 891 892 fill_fifo: 893 total = count; 894 if (sc->sc_wptr + count >= sc->sc_playbuf + BUFSIZE) 895 count = sc->sc_playbuf + BUFSIZE - sc->sc_wptr; 896 897 while (total) { 898 if (sc->sc_slowcpu) { 899 for (i = 0; i < count; i++) { 900 val = *sc->sc_wptr++; 901 val ^= 0x80; 902 if (sc->sc_rintr == NULL) { 903 bus_space_write_1(sc->sc_tag, 904 sc->sc_handle, FIFO_A, val); 905 bus_space_write_1(sc->sc_tag, 906 sc->sc_handle, FIFO_A, val); 907 } 908 bus_space_write_1(sc->sc_tag, 909 sc->sc_handle, FIFO_B, val); 910 bus_space_write_1(sc->sc_tag, 911 sc->sc_handle, FIFO_B, val); 912 } 913 } else { 914 for (i = 0; i < count; i++) { 915 val = *sc->sc_wptr++; 916 val ^= 0x80; 917 if (sc->sc_rintr == NULL) { 918 bus_space_write_1(sc->sc_tag, 919 sc->sc_handle, FIFO_A, val); 920 } 921 bus_space_write_1(sc->sc_tag, 922 sc->sc_handle, FIFO_B, val); 923 } 924 } 925 if (sc->sc_wptr >= sc->sc_playbuf + BUFSIZE) 926 sc->sc_wptr = sc->sc_playbuf; 927 total -= count; 928 sc->sc_avail -= count; 929 count = total; 930 } 931 932 more: 933 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 934 if (sc->sc_rintr) 935 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, 0); 936 if (sc->sc_pintr) 937 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 0); 938 } 939 940 if (sc->sc_pintr && (sc->sc_avail <= PLAYBLKSIZE)) 941 callout_schedule(&sc->sc_pcallout, 0); 942 943 if (sc->sc_rintr && (sc->sc_recavail >= RECBLKSIZE)) 944 callout_schedule(&sc->sc_rcallout, 0); 945 946 mutex_exit(&sc->sc_intr_lock); 947 } 948 949 static void 950 ascaudio_intr_enable(void) 951 { 952 int s; 953 954 s = splhigh(); 955 if (VIA2 == VIA2OFF) 956 via2_reg(vIER) = 0x80 | V2IF_ASC; 957 else 958 via2_reg(rIER) = 0x80 | V2IF_ASC; 959 splx(s); 960 } 961 962 static void 963 ascaudio_done_output(void *arg) 964 { 965 struct ascaudio_softc *sc = arg; 966 967 mutex_enter(&sc->sc_intr_lock); 968 if (sc->sc_pintr) 969 (*sc->sc_pintr)(sc->sc_pintrarg); 970 mutex_exit(&sc->sc_intr_lock); 971 } 972 973 static void 974 ascaudio_done_input(void *arg) 975 { 976 struct ascaudio_softc *sc = arg; 977 978 mutex_enter(&sc->sc_intr_lock); 979 if (sc->sc_rintr) 980 (*sc->sc_rintr)(sc->sc_rintrarg); 981 mutex_exit(&sc->sc_intr_lock); 982 } 983 984 static void 985 configure_dfac(uint8_t config) 986 { 987 int i; 988 989 if (pmHardware == PM_HW_PB5XX) 990 return; /* These macs use the pm to configure dfac */ 991 992 for (i = 0; i < 8; i++) { 993 via_reg(VIA2, vBufB) &= ~DFAC_CLOCK; 994 995 if (config & 0x1) 996 via_reg(VIA2, vBufB) |= DFAC_DATA; 997 else 998 via_reg(VIA2, vBufB) &= ~DFAC_DATA; 999 1000 via_reg(VIA2, vBufB) |= DFAC_CLOCK; 1001 config >>= 1; 1002 } 1003 via_reg(VIA2, vBufB) &= ~DFAC_CLOCK; 1004 via_reg(VIA2, vBufB) |= DFAC_LATCH; 1005 via_reg(VIA2, vBufB) &= ~DFAC_LATCH; 1006 } 1007 1008 #ifdef _MODULE 1009 1010 MODULE(MODULE_CLASS_DRIVER, ascaudio, "audio"); 1011 1012 static const struct cfiattrdata audiobuscf_iattrdata = { 1013 "audiobus", 0, { { NULL, NULL, 0 }, } 1014 }; 1015 static const struct cfiattrdata * const ascaudio_attrs[] = { 1016 &audiobuscf_iattrdata, NULL 1017 }; 1018 1019 CFDRIVER_DECL(ascaudio, DV_DULL, ascaud_attrs); 1020 extern struct cfattach ascaudio_ca; 1021 static int ascaudioloc[] = { -1, -1 }; 1022 1023 static struct cfdata ascaudio_cfdata[] = { 1024 { 1025 .cf_name = "ascaudio", 1026 .cf_atname = "ascaudio", 1027 .cf_unit = 0, 1028 .cf_fstate = FSTATE_STAR, 1029 .cf_loc = ascaudioloc, 1030 .cf_flags = 0, 1031 .cf_pspec = NULL, 1032 }, 1033 { NULL, NULL, 0, 0, NULL, 0, NULL } 1034 }; 1035 1036 static int 1037 ascaudio_modcmd(modcmd_t cmd, void *arg) 1038 { 1039 devmajor_t cmajor = NODEVMAJOR, bmajor = NODEVMAJOR; 1040 int error; 1041 1042 switch (cmd) { 1043 case MODULE_CMD_INIT: 1044 error = config_cfdriver_attach(&ascaudio_cd); 1045 if (error) { 1046 return error; 1047 } 1048 1049 error = config_cfattach_attach(ascaudio_cd.cd_name, &ascaud_ca); 1050 if (error) { 1051 config_cfdriver_detach(&ascaudio_cd); 1052 aprint_error("%s: unable to register cfattach\n", 1053 ascaudio_cd.cd_name); 1054 1055 return error; 1056 } 1057 1058 error = config_cfdata_attach(ascaudio_cfdata, 1); 1059 if (error) { 1060 config_cfattach_detach(ascaudio_cd.cd_name, &ascaud_ca); 1061 config_cfdriver_detach(&ascaudio_cd); 1062 aprint_error("%s: unable to register cfdata\n", 1063 ascaudio_cd.cd_name); 1064 1065 return error; 1066 } 1067 1068 error = devsw_attach(ascaudio_cd.cd_name, NULL, &bmajor, 1069 &ascaudio_cdevsw, &cmajor); 1070 if (error) { 1071 error = config_cfdata_detach(ascaudio_cfdata); 1072 if (error) { 1073 return error; 1074 } 1075 config_cfattach_detach(ascaudio_cd.cd_name, &ascaud_ca); 1076 config_cfdriver_detach(&ascaudio_cd); 1077 aprint_error("%s: unable to register devsw\n", 1078 ascaudio_cd.cd_name); 1079 1080 return error; 1081 } 1082 1083 (void)config_attach_pseudo(ascaudio_cfdata); 1084 1085 return 0; 1086 case MODULE_CMD_FINI: 1087 error = config_cfdata_detach(ascaudio_cfdata); 1088 if (error) { 1089 return error; 1090 } 1091 1092 config_cfattach_detach(ascaudio_cd.cd_name, &ascaud_ca); 1093 config_cfdriver_detach(&ascaudio_cd); 1094 devsw_detach(NULL, &ascaudio_cdevsw); 1095 1096 return 0; 1097 default: 1098 return ENOTTY; 1099 } 1100 } 1101 1102 #endif 1103
Indexes created Fri Oct 03 17:10:05 GMT 2025