ascaudio.c revision 1.12
1 /* $NetBSD: ascaudio.c,v 1.12 2025/05/14 11:42:00 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 1.12 2025/05/14 11:42:00 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 8192 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(void *); 110 static int ascaudio_set_port(void *, mixer_ctrl_t *); 111 static int ascaudio_get_port(void *, mixer_ctrl_t *); 112 static int ascaudio_getdev(void *, struct audio_device *); 113 static int ascaudio_query_devinfo(void *, mixer_devinfo_t *); 114 static int ascaudio_get_props(void *); 115 static int 116 ascaudio_round_blocksize(void *, int, int, const audio_params_t *); 117 static void ascaudio_get_locks(void *, kmutex_t **, kmutex_t **); 118 static void ascaudio_intr(void *); 119 static int ascaudio_intr_est(void *); 120 static void ascaudio_intr_enable(void); 121 static void ascaudio_done_output(void *); 122 static void ascaudio_done_input(void *); 123 static void configure_dfac(uint8_t); 124 125 static const struct audio_hw_if ascaudio_hw_if = { 126 .query_format = ascaudio_query_format, 127 .set_format = ascaudio_set_format, 128 .start_output = ascaudio_start_output, 129 .start_input = ascaudio_start_input, 130 .halt_output = ascaudio_halt, 131 .halt_input = ascaudio_halt, 132 .set_port = ascaudio_set_port, 133 .get_port = ascaudio_get_port, 134 .getdev = ascaudio_getdev, 135 .query_devinfo = ascaudio_query_devinfo, 136 .get_props = ascaudio_get_props, 137 .round_blocksize = ascaudio_round_blocksize, 138 .get_locks = ascaudio_get_locks, 139 }; 140 141 enum { 142 ASC_OUTPUT_CLASS, 143 ASC_INPUT_CLASS, 144 ASC_OUTPUT_MASTER_VOLUME, 145 ASC_INPUT_DAC_VOLUME, 146 ASC_ENUM_LAST, 147 }; 148 149 static int 150 ascaudiomatch(device_t parent, cfdata_t cf, void *aux) 151 { 152 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 153 bus_addr_t addr; 154 bus_space_handle_t bsh; 155 int rval = 0; 156 157 if (oa->oa_addr != (-1)) 158 addr = (bus_addr_t)oa->oa_addr; 159 else if (current_mac_model->machineid == MACH_MACTV) 160 return 0; 161 else if (current_mac_model->machineid == MACH_MACIIFX) 162 addr = (bus_addr_t)MAC68K_IIFX_ASCAUDIO_BASE; 163 else 164 addr = (bus_addr_t)MAC68K_ASCAUDIO_BASE; 165 166 if (bus_space_map(oa->oa_tag, addr, MAC68K_ASCAUDIO_LEN, 0, &bsh)) 167 return (0); 168 169 if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0, 1)) { 170 rval = 1; 171 } else 172 rval = 0; 173 174 bus_space_unmap(oa->oa_tag, bsh, MAC68K_ASCAUDIO_LEN); 175 176 return rval; 177 } 178 179 static void 180 ascaudioattach(device_t parent, device_t self, void *aux) 181 { 182 struct ascaudio_softc *sc = device_private(self); 183 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 184 bus_addr_t addr; 185 uint8_t tmp; 186 187 sc->sc_dev = self; 188 sc->sc_tag = oa->oa_tag; 189 190 if (oa->oa_addr != (-1)) 191 addr = (bus_addr_t)oa->oa_addr; 192 else if (current_mac_model->machineid == MACH_MACIIFX) 193 addr = (bus_addr_t)MAC68K_IIFX_ASCAUDIO_BASE; 194 else 195 addr = (bus_addr_t)MAC68K_ASCAUDIO_BASE; 196 if (bus_space_map(sc->sc_tag, addr, MAC68K_ASCAUDIO_LEN, 0, 197 &sc->sc_handle)) { 198 printf(": can't map memory space\n"); 199 return; 200 } 201 202 /* Pull in the options flags. */ 203 sc->sc_options = ((device_cfdata(self)->cf_flags) & 204 ASCAUDIO_OPTIONS_MASK); 205 206 sc->sc_playbuf = kmem_alloc(BUFSIZE, KM_SLEEP); 207 sc->sc_recbuf = kmem_alloc(BUFSIZE, KM_SLEEP); 208 sc->sc_rptr = sc->sc_recbuf; 209 sc->sc_getptr = sc->sc_recbuf; 210 sc->sc_wptr = sc->sc_playbuf; 211 sc->sc_putptr = sc->sc_playbuf; 212 213 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 214 215 sc->sc_ver = bus_space_read_1(oa->oa_tag, sc->sc_handle, 0x800); 216 217 if (sc->sc_options & HIGHQUALITY) { 218 tmp = bus_space_read_1(sc->sc_tag, sc->sc_handle, ASCRATE); 219 switch (tmp) { 220 case 2: 221 sc->sc_rate = 22050; 222 break; 223 case 3: 224 sc->sc_rate = 44100; 225 break; 226 default: 227 sc->sc_rate = 22254; 228 break; 229 } 230 231 tmp = bus_space_read_1(sc->sc_tag, sc->sc_handle, ASCTRL); 232 if (tmp & STEREO) 233 sc->sc_speakers = 2; 234 else 235 sc->sc_speakers = 1; 236 237 } else { 238 __USE(tmp); 239 sc->sc_rate = 22254; 240 sc->sc_speakers = 1; 241 } 242 243 if (sc->sc_options & LOWQUALITY) { 244 sc->sc_slowcpu = true; 245 if (sc->sc_slowcpu) 246 sc->sc_rate /= 2; 247 } 248 249 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) 250 printf(": Enhanced Apple Sound Chip"); 251 else 252 printf(": Apple Sound Chip"); 253 254 if (oa->oa_addr != (-1)) 255 printf(" at %x", oa->oa_addr); 256 printf("\n"); 257 258 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 259 260 if (mac68k_machine.aux_interrupts) { 261 intr_establish(ascaudio_intr_est, sc, ASCIRQ); 262 } else { 263 via2_register_irq(VIA2_ASC, ascaudio_intr, sc); 264 } 265 ascaudio_intr_enable(); 266 267 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE); 268 mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_AUDIO); 269 callout_init(&sc->sc_pcallout, CALLOUT_MPSAFE); 270 callout_setfunc(&sc->sc_pcallout, ascaudio_done_output, sc); 271 callout_init(&sc->sc_rcallout, CALLOUT_MPSAFE); 272 callout_setfunc(&sc->sc_rcallout, ascaudio_done_input, sc); 273 274 sc->sc_vol = 180; 275 sc->sc_recvol = 255; 276 277 sc->sc_audiodev = audio_attach_mi(&ascaudio_hw_if, sc, sc->sc_dev); 278 279 if (!pmf_device_register(sc->sc_dev, NULL, NULL)) 280 aprint_error_dev(sc->sc_dev, 281 "couldn't establish power handler\n"); 282 283 if (sc->sc_ver != EASC_VER && sc->sc_ver != EASC_VER2) 284 return; 285 286 if (sc->sc_options & HIGHQUALITY) 287 tmp = CDQUALITY; 288 else 289 tmp = MACDEFAULTS; 290 291 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOCTRLA, tmp); 292 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOCTRLB, tmp); 293 294 } 295 296 int 297 ascaudioopen(dev_t dev, int flag, int mode, struct lwp *l) 298 { 299 struct ascaudio_softc *sc; 300 301 sc = device_lookup_private(&ascaudio_cd, ASCAUDIOUNIT(dev)); 302 if (sc == NULL) 303 return (ENXIO); 304 if (sc->sc_open) 305 return (EBUSY); 306 sc->sc_open = 1; 307 308 return (0); 309 } 310 311 int 312 ascaudioclose(dev_t dev, int flag, int mode, struct lwp *l) 313 { 314 struct ascaudio_softc *sc; 315 316 sc = device_lookup_private(&ascaudio_cd, ASCAUDIOUNIT(dev)); 317 sc->sc_open = 0; 318 319 return (0); 320 } 321 322 int 323 ascaudioread(dev_t dev, struct uio *uio, int ioflag) 324 { 325 return (ENXIO); 326 } 327 328 int 329 ascaudiowrite(dev_t dev, struct uio *uio, int ioflag) 330 { 331 return (ENXIO); 332 } 333 334 int 335 ascaudioioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) 336 { 337 int error; 338 #ifdef notyet 339 struct ascaudio_softc *sc; 340 int unit = ASCAUDIOUNIT(dev); 341 342 sc = device_lookup_private(&ascaudio_cd, unit); 343 #endif 344 error = 0; 345 346 switch (cmd) { 347 default: 348 error = EINVAL; 349 break; 350 } 351 return (error); 352 } 353 354 #define ASCAUDIO_NFORMATS 3 355 static int 356 ascaudio_query_format(void *opaque, struct audio_format_query *ae) 357 { 358 struct ascaudio_softc *sc = opaque; 359 360 const struct audio_format asc_formats[ASCAUDIO_NFORMATS] = { 361 { .mode = AUMODE_PLAY, 362 .encoding = AUDIO_ENCODING_SLINEAR_BE, 363 .validbits = 8, 364 .precision = 8, 365 .channels = sc->sc_speakers, 366 .channel_mask = sc->sc_speakers == 2 ? AUFMT_STEREO : 367 AUFMT_MONAURAL, 368 .frequency_type = 1, 369 .frequency = { sc->sc_rate }, }, 370 { .mode = AUMODE_RECORD, 371 .encoding = AUDIO_ENCODING_SLINEAR_BE, 372 .validbits = 8, 373 .precision = 8, 374 .channels = 1, 375 .channel_mask = AUFMT_MONAURAL, 376 .frequency_type = 1, 377 .frequency = { 11025 }, }, 378 { .mode = AUMODE_RECORD, 379 .encoding = AUDIO_ENCODING_SLINEAR_BE, 380 .validbits = 8, 381 .precision = 8, 382 .channels = 1, 383 .channel_mask = AUFMT_MONAURAL, 384 .frequency_type = 1, 385 .frequency = { 22050 }, } 386 }; 387 388 return audio_query_format(asc_formats, ASCAUDIO_NFORMATS, ae); 389 } 390 391 static int 392 ascaudio_set_format(void *opaque, int setmode, 393 const audio_params_t *play, const audio_params_t *rec, 394 audio_filter_reg_t *pfil, audio_filter_reg_t *rfil) 395 { 396 struct ascaudio_softc *sc = opaque; 397 398 KASSERT(mutex_owned(&sc->sc_lock)); 399 400 sc->sc_recfreq = rec->sample_rate; 401 402 return 0; 403 } 404 405 static int 406 ascaudio_start_output(void *opaque, void *block, int blksize, 407 void (*intr)(void *), void *intrarg) 408 { 409 struct ascaudio_softc *sc; 410 uint8_t *loc, tmp; 411 int total; 412 413 sc = (struct ascaudio_softc *)opaque; 414 if (!sc) 415 return (ENODEV); 416 417 sc->sc_pintr = intr; 418 sc->sc_pintrarg = intrarg; 419 420 loc = block; 421 if (bus_space_read_1(sc->sc_tag, sc->sc_handle, ASCMODE) != 422 MODEFIFO) { 423 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 424 425 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 426 /* disable half interrupts channel a */ 427 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, 428 DISABLEHALFIRQ); 429 /* Disable half interrupts channel b */ 430 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 431 DISABLEHALFIRQ); 432 configure_dfac(DFAC_DISABLE); 433 } 434 435 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCTEST, 0); 436 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, 437 CLEARFIFO); 438 tmp = 0; 439 bus_space_write_1(sc->sc_tag, sc->sc_handle, APLAYREC, tmp); 440 441 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 442 /* enable interrupts channel b */ 443 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 0); 444 } 445 } 446 447 /* set the volume. */ 448 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 449 /* DO NOT CHANGE THESE VALUES UNLESS TESTED. 450 CAN BE VERY LOUD!!!! */ 451 tmp = sc->sc_vol >> 5; 452 KASSERT(tmp <= MACOS_HIGH_VOL); 453 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_LEFT_VOL, tmp); 454 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_LEFT_VOL, tmp); 455 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_RIGHT_VOL, tmp); 456 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_RIGHT_VOL, tmp); 457 } 458 bus_space_write_1(sc->sc_tag, sc->sc_handle, INTVOL, sc->sc_vol); 459 460 total = blksize; 461 if (sc->sc_putptr + blksize >= sc->sc_playbuf + BUFSIZE) 462 total = sc->sc_playbuf + BUFSIZE - sc->sc_putptr; 463 464 if (total) { 465 memcpy(sc->sc_putptr, loc, total); 466 sc->sc_putptr += total; 467 loc += total; 468 } 469 470 total = blksize - total; 471 if (total) { 472 sc->sc_putptr = sc->sc_playbuf; 473 memcpy(sc->sc_playbuf, loc, total); 474 sc->sc_putptr += total; 475 } 476 477 sc->sc_avail += blksize; 478 if (sc->sc_avail > BUFSIZE) 479 sc->sc_avail = BUFSIZE; 480 481 /* start fifo playback */ 482 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODEFIFO); 483 484 return 0; 485 } 486 487 static int 488 ascaudio_start_input(void *opaque, void *block, int blksize, 489 void (*intr)(void *), void *intrarg) 490 { 491 struct ascaudio_softc *sc; 492 uint8_t tmp; 493 int total; 494 495 sc = (struct ascaudio_softc *)opaque; 496 if (!sc) 497 return (ENODEV); 498 499 uint8_t *loc; 500 loc = block; 501 502 sc->sc_rintr = intr; 503 sc->sc_rintrarg = intrarg; 504 505 if (bus_space_read_1(sc->sc_tag, sc->sc_handle, ASCMODE) != 506 MODEFIFO) { 507 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 508 509 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 510 /* disable half interrupts channel a */ 511 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, 512 DISABLEHALFIRQ); 513 /* Disable half interrupts channel b */ 514 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 515 DISABLEHALFIRQ); 516 /* 517 * Set up dfac for microphone. 518 * DO NOT SET BITS 5-7 due to loud feedback squeal. 519 */ 520 configure_dfac(DFAC_GAIN_HIGH); 521 } 522 523 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCTEST, 0); 524 525 /* start fifo playback */ 526 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODEFIFO); 527 528 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 529 /* enable interrupts channel a */ 530 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, 0); 531 } 532 533 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, 534 CLEARFIFO); 535 536 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, 537 CLEARFIFO | NONCOMP); 538 539 tmp = RECORDA; 540 if (sc->sc_recfreq == 22050) 541 tmp |= REC22KHZ; 542 bus_space_write_1(sc->sc_tag, sc->sc_handle, APLAYREC, tmp); 543 544 memset(loc, 0x80, blksize); 545 546 return 0; 547 } 548 549 /* set the volume. */ 550 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 551 /* DO NOT CHANGE THESE VALUES UNLESS TESTED. 552 CAN BE VERY LOUD!!!! */ 553 tmp = sc->sc_recvol >> 5; 554 KASSERT(tmp <= MACOS_HIGH_VOL); 555 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_LEFT_VOL, tmp); 556 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_LEFT_VOL, tmp); 557 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_RIGHT_VOL, tmp); 558 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_RIGHT_VOL, tmp); 559 } 560 bus_space_write_1(sc->sc_tag, sc->sc_handle, INTVOL, sc->sc_recvol); 561 562 total = blksize; 563 if (sc->sc_getptr + blksize >= sc->sc_recbuf + BUFSIZE) 564 total = sc->sc_recbuf + BUFSIZE - sc->sc_getptr; 565 566 if (total) { 567 memcpy(loc, sc->sc_getptr, total); 568 sc->sc_getptr += total; 569 loc += total; 570 } 571 572 total = blksize - total; 573 if (total) { 574 sc->sc_getptr = sc->sc_recbuf; 575 memcpy(loc, sc->sc_getptr, total); 576 sc->sc_getptr += total; 577 } 578 579 sc->sc_recavail -= blksize; 580 581 return 0; 582 } 583 584 static int 585 ascaudio_halt(void *opaque) 586 { 587 ascaudio_softc_t *sc; 588 589 sc = (ascaudio_softc_t *)opaque; 590 591 KASSERT(mutex_owned(&sc->sc_lock)); 592 593 callout_halt(&sc->sc_pcallout, &sc->sc_intr_lock); 594 callout_halt(&sc->sc_rcallout, &sc->sc_intr_lock); 595 596 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 597 598 sc->sc_pintr = NULL; 599 sc->sc_pintrarg = NULL; 600 sc->sc_rintr = NULL; 601 sc->sc_rintrarg = NULL; 602 603 sc->sc_avail = 0; 604 sc->sc_recavail = 0; 605 606 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, CLEARFIFO); 607 608 sc->sc_rptr = sc->sc_recbuf; 609 sc->sc_getptr = sc->sc_recbuf; 610 sc->sc_wptr = sc->sc_playbuf; 611 sc->sc_putptr = sc->sc_playbuf; 612 613 if (sc->sc_ver != EASC_VER && sc->sc_ver != EASC_VER2) 614 return 0; 615 616 configure_dfac(DFAC_DISABLE); 617 618 /* disable half interrupts channel a */ 619 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, DISABLEHALFIRQ); 620 /* disable half interrupts channel b */ 621 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, DISABLEHALFIRQ); 622 623 return 0; 624 } 625 626 static int 627 ascaudio_getdev(void *opaque, struct audio_device *ret) 628 { 629 strlcpy(ret->name, "Apple ASC Audio", sizeof(ret->name)); 630 strlcpy(ret->version, osrelease, sizeof(ret->version)); 631 strlcpy(ret->config, "ascaudio", sizeof(ret->config)); 632 633 return 0; 634 } 635 636 static int 637 ascaudio_set_port(void *opaque, mixer_ctrl_t *mc) 638 { 639 struct ascaudio_softc *sc = opaque; 640 641 KASSERT(mutex_owned(&sc->sc_lock)); 642 643 switch (mc->dev) { 644 case ASC_OUTPUT_MASTER_VOLUME: 645 if (mc->un.value.num_channels != 1) 646 return EINVAL; 647 sc->sc_vol = mc->un.value.level[AUDIO_MIXER_LEVEL_MONO]; 648 return 0; 649 case ASC_INPUT_DAC_VOLUME: 650 if (mc->un.value.num_channels != 1) 651 return EINVAL; 652 sc->sc_recvol = mc->un.value.level[AUDIO_MIXER_LEVEL_MONO]; 653 return 0; 654 } 655 656 return ENXIO; 657 } 658 659 static int 660 ascaudio_get_port(void *opaque, mixer_ctrl_t *mc) 661 { 662 struct ascaudio_softc *sc = opaque; 663 664 KASSERT(mutex_owned(&sc->sc_lock)); 665 666 switch (mc->dev) { 667 case ASC_OUTPUT_MASTER_VOLUME: 668 if (mc->un.value.num_channels != 1) 669 return EINVAL; 670 mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_vol; 671 return 0; 672 case ASC_INPUT_DAC_VOLUME: 673 if (mc->un.value.num_channels != 1) 674 return EINVAL; 675 mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_recvol; 676 return 0; 677 } 678 679 return ENXIO; 680 } 681 682 static int 683 ascaudio_query_devinfo(void *opaque, mixer_devinfo_t *di) 684 { 685 ascaudio_softc_t *sc __diagused; 686 687 sc = (ascaudio_softc_t *)opaque; 688 689 KASSERT(mutex_owned(&sc->sc_lock)); 690 691 switch (di->index) { 692 case ASC_OUTPUT_CLASS: 693 di->mixer_class = ASC_OUTPUT_CLASS; 694 strcpy(di->label.name, AudioCoutputs); 695 di->type = AUDIO_MIXER_CLASS; 696 di->next = di->prev = AUDIO_MIXER_LAST; 697 return 0; 698 case ASC_INPUT_CLASS: 699 di->mixer_class = ASC_INPUT_CLASS; 700 strcpy(di->label.name, AudioCinputs); 701 di->type = AUDIO_MIXER_CLASS; 702 di->next = di->prev = AUDIO_MIXER_LAST; 703 return 0; 704 case ASC_OUTPUT_MASTER_VOLUME: 705 di->mixer_class = ASC_OUTPUT_CLASS; 706 strcpy(di->label.name, AudioNmaster); 707 di->type = AUDIO_MIXER_VALUE; 708 di->next = di->prev = AUDIO_MIXER_LAST; 709 di->un.v.num_channels = 1; 710 strcpy(di->un.v.units.name, AudioNvolume); 711 return 0; 712 case ASC_INPUT_DAC_VOLUME: 713 di->mixer_class = ASC_INPUT_CLASS; 714 strcpy(di->label.name, AudioNdac); 715 di->type = AUDIO_MIXER_VALUE; 716 di->next = di->prev = AUDIO_MIXER_LAST; 717 di->un.v.num_channels = 1; 718 strcpy(di->un.v.units.name, AudioNvolume); 719 return 0; 720 } 721 722 return ENXIO; 723 } 724 725 static int 726 ascaudio_get_props(void *opaque) 727 { 728 729 return AUDIO_PROP_PLAYBACK | AUDIO_PROP_CAPTURE | 730 AUDIO_PROP_INDEPENDENT; 731 } 732 733 static int 734 ascaudio_round_blocksize(void *opaque, int blksize, int mode, 735 const audio_params_t *p) 736 { 737 ascaudio_softc_t *sc __diagused; 738 739 sc = (ascaudio_softc_t *)opaque; 740 KASSERT(mutex_owned(&sc->sc_lock)); 741 742 if (mode == AUMODE_PLAY) 743 return PLAYBLKSIZE; 744 else 745 return RECBLKSIZE; 746 } 747 748 static void 749 ascaudio_get_locks(void *opaque, kmutex_t **intr, kmutex_t **thread) 750 { 751 ascaudio_softc_t *sc; 752 753 sc = (ascaudio_softc_t *)opaque; 754 755 *intr = &sc->sc_intr_lock; 756 *thread = &sc->sc_lock; 757 } 758 759 static int 760 ascaudio_intr_est(void *arg) 761 { 762 ascaudio_intr(arg); 763 764 return 0; 765 } 766 767 static void 768 ascaudio_intr(void *arg) 769 { 770 struct ascaudio_softc *sc = arg; 771 int8_t val; 772 int loc_a, loc_b, total, count, i; 773 774 if (!sc) 775 return; 776 777 if (!sc->sc_pintr && !sc->sc_rintr) 778 return; 779 780 mutex_enter(&sc->sc_intr_lock); 781 782 count = 0x200; 783 if (sc->sc_rintr) { 784 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) 785 bus_space_write_1(sc->sc_tag, sc->sc_handle, 786 IRQA, DISABLEHALFIRQ); 787 788 total = count; 789 if (sc->sc_rptr + count >= sc->sc_recbuf + BUFSIZE) 790 count = sc->sc_recbuf + BUFSIZE - sc->sc_rptr; 791 while (total) { 792 if (sc->sc_ver == EASC_VER2) { 793 loc_a = FIFO_A_ALT; 794 loc_b = FIFO_B_ALT; 795 } else { 796 loc_a = FIFO_A; 797 loc_b = 0; 798 } 799 for (i = 0; i < count; i++) { 800 val = bus_space_read_1(sc->sc_tag, 801 sc->sc_handle, loc_a); 802 val ^= 0x80; 803 val = val * sc->sc_recvol / 64; 804 *sc->sc_rptr++ = val; 805 if (loc_b) { 806 (void)bus_space_read_1 807 (sc->sc_tag, sc->sc_handle, loc_b); 808 } 809 } 810 if (sc->sc_rptr >= sc->sc_recbuf + BUFSIZE) 811 sc->sc_rptr = sc->sc_recbuf; 812 total -= count; 813 sc->sc_recavail += count; 814 count = total; 815 } 816 817 if (sc->sc_recavail > BUFSIZE) 818 sc->sc_recavail = BUFSIZE; 819 820 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) 821 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, 0); 822 823 goto more; 824 } 825 826 count = 0x200; 827 if (sc->sc_slowcpu) 828 count /= 2; 829 830 if (sc->sc_avail < count) { 831 if (sc->sc_avail) { 832 count = sc->sc_avail; 833 goto fill_fifo; 834 } 835 if (sc->sc_pintr) { 836 for (i = 0; i < 0x200; i++) { 837 bus_space_write_1(sc->sc_tag, 838 sc->sc_handle, FIFO_A, 0x80); 839 bus_space_write_1(sc->sc_tag, 840 sc->sc_handle, FIFO_B, 0x80); 841 } 842 } else { 843 if (sc->sc_slowcpu) 844 count *= 2; 845 for (i = 0; i < count; i++) { 846 bus_space_write_1(sc->sc_tag, 847 sc->sc_handle, FIFO_B, 0x80); 848 } 849 } 850 goto more; 851 } 852 853 fill_fifo: 854 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) 855 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 856 DISABLEHALFIRQ); 857 858 total = count; 859 if (sc->sc_wptr + count >= sc->sc_playbuf + BUFSIZE) 860 count = sc->sc_playbuf + BUFSIZE - sc->sc_wptr; 861 862 while (total) { 863 if (sc->sc_slowcpu) { 864 for (i = 0; i < count; i++) { 865 val = *sc->sc_wptr++; 866 val ^= 0x80; 867 bus_space_write_1(sc->sc_tag, 868 sc->sc_handle, FIFO_A, val); 869 bus_space_write_1(sc->sc_tag, 870 sc->sc_handle, FIFO_B, val); 871 bus_space_write_1(sc->sc_tag, 872 sc->sc_handle, FIFO_A, val); 873 bus_space_write_1(sc->sc_tag, 874 sc->sc_handle, FIFO_B, val); 875 } 876 } else { 877 for (i = 0; i < count; i++) { 878 val = *sc->sc_wptr++; 879 val ^= 0x80; 880 bus_space_write_1(sc->sc_tag, 881 sc->sc_handle, FIFO_A, val); 882 bus_space_write_1(sc->sc_tag, 883 sc->sc_handle, FIFO_B, val); 884 } 885 } 886 if (sc->sc_wptr >= sc->sc_playbuf + BUFSIZE) 887 sc->sc_wptr = sc->sc_playbuf; 888 total -= count; 889 sc->sc_avail -= count; 890 count = total; 891 } 892 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) 893 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 0); 894 895 more: 896 if (sc->sc_pintr && (sc->sc_avail <= PLAYBLKSIZE)) 897 callout_schedule(&sc->sc_pcallout, 0); 898 899 if (sc->sc_rintr && (sc->sc_recavail >= RECBLKSIZE)) 900 callout_schedule(&sc->sc_rcallout, 0); 901 902 mutex_exit(&sc->sc_intr_lock); 903 } 904 905 static void 906 ascaudio_intr_enable(void) 907 { 908 int s; 909 910 s = splhigh(); 911 if (VIA2 == VIA2OFF) 912 via2_reg(vIER) = 0x80 | V2IF_ASC; 913 else 914 via2_reg(rIER) = 0x80 | V2IF_ASC; 915 splx(s); 916 } 917 918 static void 919 ascaudio_done_output(void *arg) 920 { 921 struct ascaudio_softc *sc = arg; 922 923 mutex_enter(&sc->sc_intr_lock); 924 if (sc->sc_pintr) 925 (*sc->sc_pintr)(sc->sc_pintrarg); 926 mutex_exit(&sc->sc_intr_lock); 927 } 928 929 static void 930 ascaudio_done_input(void *arg) 931 { 932 struct ascaudio_softc *sc = arg; 933 934 mutex_enter(&sc->sc_intr_lock); 935 if (sc->sc_rintr) 936 (*sc->sc_rintr)(sc->sc_rintrarg); 937 mutex_exit(&sc->sc_intr_lock); 938 } 939 static void 940 configure_dfac(uint8_t config) 941 { 942 int i; 943 944 if (pmHardware == PM_HW_PB5XX) 945 return; /* These macs use the pm to configure dfac */ 946 947 for (i = 0; i < 8; i++) { 948 via_reg(VIA2, vBufB) &= ~DFAC_CLOCK; 949 950 if (config & 0x1) 951 via_reg(VIA2, vBufB) |= DFAC_DATA; 952 else 953 via_reg(VIA2, vBufB) &= ~DFAC_DATA; 954 955 via_reg(VIA2, vBufB) |= DFAC_CLOCK; 956 config >>= 1; 957 } 958 via_reg(VIA2, vBufB) &= ~DFAC_CLOCK; 959 via_reg(VIA2, vBufB) |= DFAC_LATCH; 960 via_reg(VIA2, vBufB) &= ~DFAC_LATCH; 961 } 962 963 #ifdef _MODULE 964 965 MODULE(MODULE_CLASS_DRIVER, ascaudio, "audio"); 966 967 static const struct cfiattrdata audiobuscf_iattrdata = { 968 "audiobus", 0, { { NULL, NULL, 0 }, } 969 }; 970 static const struct cfiattrdata * const ascaudio_attrs[] = { 971 &audiobuscf_iattrdata, NULL 972 }; 973 974 CFDRIVER_DECL(ascaudio, DV_DULL, ascaud_attrs); 975 extern struct cfattach ascaudio_ca; 976 static int ascaudioloc[] = { -1, -1 }; 977 978 static struct cfdata ascaudio_cfdata[] = { 979 { 980 .cf_name = "ascaudio", 981 .cf_atname = "ascaudio", 982 .cf_unit = 0, 983 .cf_fstate = FSTATE_STAR, 984 .cf_loc = ascaudioloc, 985 .cf_flags = 0, 986 .cf_pspec = NULL, 987 }, 988 { NULL, NULL, 0, 0, NULL, 0, NULL } 989 }; 990 991 static int 992 ascaudio_modcmd(modcmd_t cmd, void *arg) 993 { 994 devmajor_t cmajor = NODEVMAJOR, bmajor = NODEVMAJOR; 995 int error; 996 997 switch (cmd) { 998 case MODULE_CMD_INIT: 999 error = config_cfdriver_attach(&ascaudio_cd); 1000 if (error) { 1001 return error; 1002 } 1003 1004 error = config_cfattach_attach(ascaudio_cd.cd_name, &ascaud_ca); 1005 if (error) { 1006 config_cfdriver_detach(&ascaudio_cd); 1007 aprint_error("%s: unable to register cfattach\n", 1008 ascaudio_cd.cd_name); 1009 1010 return error; 1011 } 1012 1013 error = config_cfdata_attach(ascaudio_cfdata, 1); 1014 if (error) { 1015 config_cfattach_detach(ascaudio_cd.cd_name, &ascaud_ca); 1016 config_cfdriver_detach(&ascaudio_cd); 1017 aprint_error("%s: unable to register cfdata\n", 1018 ascaudio_cd.cd_name); 1019 1020 return error; 1021 } 1022 1023 error = devsw_attach(ascaudio_cd.cd_name, NULL, &bmajor, 1024 &ascaudio_cdevsw, &cmajor); 1025 if (error) { 1026 error = config_cfdata_detach(ascaudio_cfdata); 1027 if (error) { 1028 return error; 1029 } 1030 config_cfattach_detach(ascaudio_cd.cd_name, &ascaud_ca); 1031 config_cfdriver_detach(&ascaudio_cd); 1032 aprint_error("%s: unable to register devsw\n", 1033 ascaudio_cd.cd_name); 1034 1035 return error; 1036 } 1037 1038 (void)config_attach_pseudo(ascaudio_cfdata); 1039 1040 return 0; 1041 case MODULE_CMD_FINI: 1042 error = config_cfdata_detach(ascaudio_cfdata); 1043 if (error) { 1044 return error; 1045 } 1046 1047 config_cfattach_detach(ascaudio_cd.cd_name, &ascaud_ca); 1048 config_cfdriver_detach(&ascaudio_cd); 1049 devsw_detach(NULL, &ascaudio_cdevsw); 1050 1051 return 0; 1052 default: 1053 return ENOTTY; 1054 } 1055 } 1056 1057 #endif 1058
Indexes created Wed Oct 22 06:10:02 GMT 2025