ascaudio.c revision 1.8
1 /* $NetBSD: ascaudio.c,v 1.8 2025/05/12 00:37:24 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 1.8 2025/05/12 00:37:24 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 2 355 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 }; 379 380 return audio_query_format(asc_formats, ASCAUDIO_NFORMATS, ae); 381 } 382 383 static int 384 ascaudio_set_format(void *opaque, int setmode, 385 const audio_params_t *play, const audio_params_t *rec, 386 audio_filter_reg_t *pfil, audio_filter_reg_t *rfil) 387 { 388 struct ascaudio_softc *sc = opaque; 389 390 KASSERT(mutex_owned(&sc->sc_lock)); 391 392 return 0; 393 } 394 395 static int 396 ascaudio_start_output(void *opaque, void *block, int blksize, 397 void (*intr)(void *), void *intrarg) 398 { 399 struct ascaudio_softc *sc; 400 uint8_t *loc, tmp; 401 int total; 402 403 sc = (struct ascaudio_softc *)opaque; 404 if (!sc) 405 return (ENODEV); 406 407 sc->sc_pintr = intr; 408 sc->sc_pintrarg = intrarg; 409 410 loc = block; 411 if (bus_space_read_1(sc->sc_tag, sc->sc_handle, ASCMODE) != 412 MODEFIFO) { 413 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 414 415 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 416 /* disable half interrupts channel a */ 417 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, 418 DISABLEHALFIRQ); 419 /* Disable half interrupts channel b */ 420 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 421 DISABLEHALFIRQ); 422 configure_dfac(DFAC_DISABLE); 423 } 424 425 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 CLEARFIFO); 428 tmp = 0; 429 bus_space_write_1(sc->sc_tag, sc->sc_handle, APLAYREC, tmp); 430 431 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 432 /* enable interrupts channel b */ 433 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 0); 434 } 435 } 436 437 /* set the volume. */ 438 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 439 /* DO NOT CHANGE THESE VALUES UNLESS TESTED. 440 CAN BE VERY LOUD!!!! */ 441 tmp = sc->sc_vol >> 5; 442 KASSERT(tmp <= MACOS_HIGH_VOL); 443 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_LEFT_VOL, tmp); 444 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_LEFT_VOL, tmp); 445 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_RIGHT_VOL, tmp); 446 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_RIGHT_VOL, tmp); 447 } 448 bus_space_write_1(sc->sc_tag, sc->sc_handle, INTVOL, sc->sc_vol); 449 450 total = blksize; 451 if (sc->sc_putptr + blksize >= sc->sc_playbuf + BUFSIZE) 452 total = sc->sc_playbuf + BUFSIZE - sc->sc_putptr; 453 454 if (total) { 455 memcpy(sc->sc_putptr, loc, total); 456 sc->sc_putptr += total; 457 loc += total; 458 } 459 460 total = blksize - total; 461 if (total) { 462 sc->sc_putptr = sc->sc_playbuf; 463 memcpy(sc->sc_playbuf, loc, total); 464 sc->sc_putptr += total; 465 } 466 467 sc->sc_avail += blksize; 468 if (sc->sc_avail > BUFSIZE) 469 sc->sc_avail = BUFSIZE; 470 471 /* start fifo playback */ 472 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODEFIFO); 473 474 return 0; 475 } 476 477 static int 478 ascaudio_start_input(void *opaque, void *block, int blksize, 479 void (*intr)(void *), void *intrarg) 480 { 481 struct ascaudio_softc *sc; 482 uint8_t tmp; 483 int total; 484 485 sc = (struct ascaudio_softc *)opaque; 486 if (!sc) 487 return (ENODEV); 488 489 uint8_t *loc; 490 loc = block; 491 492 sc->sc_rintr = intr; 493 sc->sc_rintrarg = intrarg; 494 495 if (bus_space_read_1(sc->sc_tag, sc->sc_handle, ASCMODE) != 496 MODEFIFO) { 497 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 498 499 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 500 /* disable half interrupts channel a */ 501 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, 502 DISABLEHALFIRQ); 503 /* Disable half interrupts channel b */ 504 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 505 DISABLEHALFIRQ); 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 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCTEST, 0); 514 515 /* start fifo playback */ 516 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODEFIFO); 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 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, 524 CLEARFIFO); 525 526 #if 0 527 bus_space_write_4(sc->sc_tag, sc->sc_handle, FIFO_A_ALT, 0); 528 bus_space_write_4(sc->sc_tag, sc->sc_handle, FIFO_B_ALT, 0); 529 #endif 530 531 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, 532 CLEARFIFO | NONCOMP); 533 534 tmp = RECORDA; 535 bus_space_write_1(sc->sc_tag, sc->sc_handle, APLAYREC, tmp); 536 537 #if 0 538 int i; 539 for (i = 0; i < 0x400; i++) { 540 bus_space_read_1(sc->sc_tag, sc->sc_handle, FIFO_A); 541 bus_space_read_1(sc->sc_tag, sc->sc_handle, FIFO_B); 542 } 543 #endif 544 545 return 0; 546 } 547 548 /* set the volume. */ 549 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) { 550 /* DO NOT CHANGE THESE VALUES UNLESS TESTED. 551 CAN BE VERY LOUD!!!! */ 552 tmp = sc->sc_recvol >> 5; 553 KASSERT(tmp <= MACOS_HIGH_VOL); 554 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_LEFT_VOL, tmp); 555 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_LEFT_VOL, tmp); 556 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_RIGHT_VOL, tmp); 557 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_RIGHT_VOL, tmp); 558 } 559 bus_space_write_1(sc->sc_tag, sc->sc_handle, INTVOL, sc->sc_recvol); 560 561 total = blksize; 562 if (sc->sc_getptr + blksize >= sc->sc_recbuf + BUFSIZE) 563 total = sc->sc_recbuf + BUFSIZE - sc->sc_getptr; 564 565 if (total) { 566 memcpy(loc, sc->sc_getptr, total); 567 sc->sc_getptr += total; 568 loc += total; 569 } 570 571 total = blksize - total; 572 if (total) { 573 sc->sc_getptr = sc->sc_recbuf; 574 memcpy(loc, sc->sc_getptr, total); 575 sc->sc_getptr += total; 576 } 577 578 sc->sc_recavail -= blksize; 579 580 return 0; 581 } 582 583 static int 584 ascaudio_halt(void *opaque) 585 { 586 ascaudio_softc_t *sc; 587 588 sc = (ascaudio_softc_t *)opaque; 589 590 KASSERT(mutex_owned(&sc->sc_lock)); 591 592 callout_halt(&sc->sc_pcallout, &sc->sc_intr_lock); 593 callout_halt(&sc->sc_rcallout, &sc->sc_intr_lock); 594 595 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 596 597 sc->sc_pintr = NULL; 598 sc->sc_pintrarg = NULL; 599 sc->sc_rintr = NULL; 600 sc->sc_rintrarg = NULL; 601 602 sc->sc_avail = 0; 603 sc->sc_recavail = 0; 604 605 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, CLEARFIFO); 606 607 sc->sc_rptr = sc->sc_recbuf; 608 sc->sc_getptr = sc->sc_recbuf; 609 sc->sc_wptr = sc->sc_playbuf; 610 sc->sc_putptr = sc->sc_playbuf; 611 612 if (sc->sc_ver != EASC_VER && sc->sc_ver != EASC_VER2) 613 return 0; 614 615 configure_dfac(DFAC_DISABLE); 616 617 /* disable half interrupts channel a */ 618 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, DISABLEHALFIRQ); 619 /* disable half interrupts channel b */ 620 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, DISABLEHALFIRQ); 621 622 return 0; 623 } 624 625 static int 626 ascaudio_getdev(void *opaque, struct audio_device *ret) 627 { 628 strlcpy(ret->name, "Apple ASC Audio", sizeof(ret->name)); 629 strlcpy(ret->version, osrelease, sizeof(ret->version)); 630 strlcpy(ret->config, "ascaudio", sizeof(ret->config)); 631 632 return 0; 633 } 634 635 static int 636 ascaudio_set_port(void *opaque, mixer_ctrl_t *mc) 637 { 638 struct ascaudio_softc *sc = opaque; 639 640 KASSERT(mutex_owned(&sc->sc_lock)); 641 642 switch (mc->dev) { 643 case ASC_OUTPUT_MASTER_VOLUME: 644 if (mc->un.value.num_channels != 1) 645 return EINVAL; 646 sc->sc_vol = mc->un.value.level[AUDIO_MIXER_LEVEL_MONO]; 647 return 0; 648 case ASC_INPUT_DAC_VOLUME: 649 if (mc->un.value.num_channels != 1) 650 return EINVAL; 651 sc->sc_recvol = mc->un.value.level[AUDIO_MIXER_LEVEL_MONO]; 652 return 0; 653 } 654 655 return ENXIO; 656 } 657 658 static int 659 ascaudio_get_port(void *opaque, mixer_ctrl_t *mc) 660 { 661 struct ascaudio_softc *sc = opaque; 662 663 KASSERT(mutex_owned(&sc->sc_lock)); 664 665 switch (mc->dev) { 666 case ASC_OUTPUT_MASTER_VOLUME: 667 if (mc->un.value.num_channels != 1) 668 return EINVAL; 669 mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_vol; 670 return 0; 671 case ASC_INPUT_DAC_VOLUME: 672 if (mc->un.value.num_channels != 1) 673 return EINVAL; 674 mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_recvol; 675 return 0; 676 } 677 678 return ENXIO; 679 } 680 681 static int 682 ascaudio_query_devinfo(void *opaque, mixer_devinfo_t *di) 683 { 684 ascaudio_softc_t *sc __diagused; 685 686 sc = (ascaudio_softc_t *)opaque; 687 688 KASSERT(mutex_owned(&sc->sc_lock)); 689 690 switch (di->index) { 691 case ASC_OUTPUT_CLASS: 692 di->mixer_class = ASC_OUTPUT_CLASS; 693 strcpy(di->label.name, AudioCoutputs); 694 di->type = AUDIO_MIXER_CLASS; 695 di->next = di->prev = AUDIO_MIXER_LAST; 696 return 0; 697 case ASC_INPUT_CLASS: 698 di->mixer_class = ASC_INPUT_CLASS; 699 strcpy(di->label.name, AudioCinputs); 700 di->type = AUDIO_MIXER_CLASS; 701 di->next = di->prev = AUDIO_MIXER_LAST; 702 return 0; 703 case ASC_OUTPUT_MASTER_VOLUME: 704 di->mixer_class = ASC_OUTPUT_CLASS; 705 strcpy(di->label.name, AudioNmaster); 706 di->type = AUDIO_MIXER_VALUE; 707 di->next = di->prev = AUDIO_MIXER_LAST; 708 di->un.v.num_channels = 1; 709 strcpy(di->un.v.units.name, AudioNvolume); 710 return 0; 711 case ASC_INPUT_DAC_VOLUME: 712 di->mixer_class = ASC_INPUT_CLASS; 713 strcpy(di->label.name, AudioNdac); 714 di->type = AUDIO_MIXER_VALUE; 715 di->next = di->prev = AUDIO_MIXER_LAST; 716 di->un.v.num_channels = 1; 717 strcpy(di->un.v.units.name, AudioNvolume); 718 return 0; 719 } 720 721 return ENXIO; 722 } 723 724 static int 725 ascaudio_get_props(void *opaque) 726 { 727 728 return AUDIO_PROP_PLAYBACK | AUDIO_PROP_CAPTURE | 729 AUDIO_PROP_INDEPENDENT; 730 } 731 732 static int 733 ascaudio_round_blocksize(void *opaque, int blksize, int mode, 734 const audio_params_t *p) 735 { 736 ascaudio_softc_t *sc __diagused; 737 738 sc = (ascaudio_softc_t *)opaque; 739 KASSERT(mutex_owned(&sc->sc_lock)); 740 741 if (mode == AUMODE_PLAY) 742 return PLAYBLKSIZE; 743 else 744 return RECBLKSIZE; 745 } 746 747 static void 748 ascaudio_get_locks(void *opaque, kmutex_t **intr, kmutex_t **thread) 749 { 750 ascaudio_softc_t *sc; 751 752 sc = (ascaudio_softc_t *)opaque; 753 754 *intr = &sc->sc_intr_lock; 755 *thread = &sc->sc_lock; 756 } 757 758 static int 759 ascaudio_intr_est(void *arg) 760 { 761 ascaudio_intr(arg); 762 763 return 0; 764 } 765 766 static void 767 ascaudio_intr(void *arg) 768 { 769 struct ascaudio_softc *sc = arg; 770 uint8_t val; 771 int loc_a, loc_b, total, count, i; 772 773 if (!sc) 774 return; 775 776 if (!sc->sc_pintr && !sc->sc_rintr) 777 return; 778 779 mutex_enter(&sc->sc_intr_lock); 780 781 count = 0x200; 782 if (sc->sc_rintr) { 783 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) 784 bus_space_write_1(sc->sc_tag, sc->sc_handle, 785 IRQA, DISABLEHALFIRQ); 786 787 total = count; 788 if (sc->sc_rptr + count >= sc->sc_recbuf + BUFSIZE) 789 count = sc->sc_recbuf + BUFSIZE - sc->sc_rptr; 790 while (total) { 791 if (sc->sc_ver == EASC_VER2) { 792 loc_a = FIFO_A_ALT; 793 loc_b = FIFO_B_ALT; 794 } else { 795 loc_a = FIFO_A; 796 loc_b = 0; 797 } 798 for (i = 0; i < count; i++) { 799 val = bus_space_read_1(sc->sc_tag, 800 sc->sc_handle, loc_a); 801 val ^= 0x80; 802 *sc->sc_rptr++ = val; 803 if (loc_b) { 804 (void)bus_space_read_1 805 (sc->sc_tag, sc->sc_handle, loc_b); 806 } 807 } 808 if (sc->sc_rptr >= sc->sc_recbuf + BUFSIZE) 809 sc->sc_rptr = sc->sc_recbuf; 810 total -= count; 811 sc->sc_recavail += count; 812 count = total; 813 } 814 815 if (sc->sc_recavail > BUFSIZE) 816 sc->sc_recavail = BUFSIZE; 817 818 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) 819 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, 0); 820 821 goto more; 822 } 823 824 count = 0x200; 825 if (sc->sc_slowcpu) 826 count /= 2; 827 828 if (sc->sc_avail < count) { 829 if (sc->sc_avail) { 830 count = sc->sc_avail; 831 goto fill_fifo; 832 } 833 if (sc->sc_pintr) { 834 for (i = 0; i < 0x200; i++) { 835 bus_space_write_1(sc->sc_tag, 836 sc->sc_handle, FIFO_A, 0x80); 837 bus_space_write_1(sc->sc_tag, 838 sc->sc_handle, FIFO_B, 0x80); 839 } 840 } else { 841 if (sc->sc_slowcpu) 842 count *= 2; 843 for (i = 0; i < count; i++) { 844 bus_space_write_1(sc->sc_tag, 845 sc->sc_handle, FIFO_B, 0x80); 846 } 847 } 848 goto more; 849 } 850 851 fill_fifo: 852 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) 853 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 854 DISABLEHALFIRQ); 855 856 total = count; 857 if (sc->sc_wptr + count >= sc->sc_playbuf + BUFSIZE) 858 count = sc->sc_playbuf + BUFSIZE - sc->sc_wptr; 859 860 while (total) { 861 if (sc->sc_slowcpu) { 862 for (i = 0; i < count; i++) { 863 val = *sc->sc_wptr++; 864 val ^= 0x80; 865 bus_space_write_1(sc->sc_tag, 866 sc->sc_handle, FIFO_A, val); 867 bus_space_write_1(sc->sc_tag, 868 sc->sc_handle, FIFO_B, val); 869 bus_space_write_1(sc->sc_tag, 870 sc->sc_handle, FIFO_A, val); 871 bus_space_write_1(sc->sc_tag, 872 sc->sc_handle, FIFO_B, val); 873 } 874 } else { 875 for (i = 0; i < count; i++) { 876 val = *sc->sc_wptr++; 877 val ^= 0x80; 878 bus_space_write_1(sc->sc_tag, 879 sc->sc_handle, FIFO_A, val); 880 bus_space_write_1(sc->sc_tag, 881 sc->sc_handle, FIFO_B, val); 882 } 883 } 884 if (sc->sc_wptr >= sc->sc_playbuf + BUFSIZE) 885 sc->sc_wptr = sc->sc_playbuf; 886 total -= count; 887 sc->sc_avail -= count; 888 count = total; 889 } 890 if (sc->sc_ver == EASC_VER || sc->sc_ver == EASC_VER2) 891 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 0); 892 893 more: 894 if (sc->sc_pintr && (sc->sc_avail <= PLAYBLKSIZE)) 895 callout_schedule(&sc->sc_pcallout, 0); 896 897 if (sc->sc_rintr && (sc->sc_recavail >= RECBLKSIZE)) 898 callout_schedule(&sc->sc_rcallout, 0); 899 900 mutex_exit(&sc->sc_intr_lock); 901 } 902 903 static void 904 ascaudio_intr_enable(void) 905 { 906 int s; 907 908 s = splhigh(); 909 if (VIA2 == VIA2OFF) 910 via2_reg(vIER) = 0x80 | V2IF_ASC; 911 else 912 via2_reg(rIER) = 0x80 | V2IF_ASC; 913 splx(s); 914 } 915 916 static void 917 ascaudio_done_output(void *arg) 918 { 919 struct ascaudio_softc *sc = arg; 920 921 mutex_enter(&sc->sc_intr_lock); 922 if (sc->sc_pintr) 923 (*sc->sc_pintr)(sc->sc_pintrarg); 924 mutex_exit(&sc->sc_intr_lock); 925 } 926 927 static void 928 ascaudio_done_input(void *arg) 929 { 930 struct ascaudio_softc *sc = arg; 931 932 mutex_enter(&sc->sc_intr_lock); 933 if (sc->sc_rintr) 934 (*sc->sc_rintr)(sc->sc_rintrarg); 935 mutex_exit(&sc->sc_intr_lock); 936 } 937 static void 938 configure_dfac(uint8_t config) 939 { 940 int i; 941 942 if (pmHardware == PM_HW_PB5XX) 943 return; /* These macs use the pm to configure dfac */ 944 945 for (i = 0; i < 8; i++) { 946 via_reg(VIA2, vBufB) &= ~DFAC_CLOCK; 947 948 if (config & 0x1) 949 via_reg(VIA2, vBufB) |= DFAC_DATA; 950 else 951 via_reg(VIA2, vBufB) &= ~DFAC_DATA; 952 953 via_reg(VIA2, vBufB) |= DFAC_CLOCK; 954 config >>= 1; 955 } 956 via_reg(VIA2, vBufB) &= ~DFAC_CLOCK; 957 via_reg(VIA2, vBufB) |= DFAC_LATCH; 958 via_reg(VIA2, vBufB) &= ~DFAC_LATCH; 959 } 960 961 #ifdef _MODULE 962 963 MODULE(MODULE_CLASS_DRIVER, ascaudio, "audio"); 964 965 static const struct cfiattrdata audiobuscf_iattrdata = { 966 "audiobus", 0, { { NULL, NULL, 0 }, } 967 }; 968 static const struct cfiattrdata * const ascaudio_attrs[] = { 969 &audiobuscf_iattrdata, NULL 970 }; 971 972 CFDRIVER_DECL(ascaudio, DV_DULL, ascaud_attrs); 973 extern struct cfattach ascaudio_ca; 974 static int ascaudioloc[] = { -1, -1 }; 975 976 static struct cfdata ascaudio_cfdata[] = { 977 { 978 .cf_name = "ascaudio", 979 .cf_atname = "ascaudio", 980 .cf_unit = 0, 981 .cf_fstate = FSTATE_STAR, 982 .cf_loc = ascaudioloc, 983 .cf_flags = 0, 984 .cf_pspec = NULL, 985 }, 986 { NULL, NULL, 0, 0, NULL, 0, NULL } 987 }; 988 989 static int 990 ascaudio_modcmd(modcmd_t cmd, void *arg) 991 { 992 devmajor_t cmajor = NODEVMAJOR, bmajor = NODEVMAJOR; 993 int error; 994 995 switch (cmd) { 996 case MODULE_CMD_INIT: 997 error = config_cfdriver_attach(&ascaudio_cd); 998 if (error) { 999 return error; 1000 } 1001 1002 error = config_cfattach_attach(ascaudio_cd.cd_name, &ascaud_ca); 1003 if (error) { 1004 config_cfdriver_detach(&ascaudio_cd); 1005 aprint_error("%s: unable to register cfattach\n", 1006 ascaudio_cd.cd_name); 1007 1008 return error; 1009 } 1010 1011 error = config_cfdata_attach(ascaudio_cfdata, 1); 1012 if (error) { 1013 config_cfattach_detach(ascaudio_cd.cd_name, &ascaud_ca); 1014 config_cfdriver_detach(&ascaudio_cd); 1015 aprint_error("%s: unable to register cfdata\n", 1016 ascaudio_cd.cd_name); 1017 1018 return error; 1019 } 1020 1021 error = devsw_attach(ascaudio_cd.cd_name, NULL, &bmajor, 1022 &ascaudio_cdevsw, &cmajor); 1023 if (error) { 1024 error = config_cfdata_detach(ascaudio_cfdata); 1025 if (error) { 1026 return error; 1027 } 1028 config_cfattach_detach(ascaudio_cd.cd_name, &ascaud_ca); 1029 config_cfdriver_detach(&ascaudio_cd); 1030 aprint_error("%s: unable to register devsw\n", 1031 ascaudio_cd.cd_name); 1032 1033 return error; 1034 } 1035 1036 (void)config_attach_pseudo(ascaudio_cfdata); 1037 1038 return 0; 1039 case MODULE_CMD_FINI: 1040 error = config_cfdata_detach(ascaudio_cfdata); 1041 if (error) { 1042 return error; 1043 } 1044 1045 config_cfattach_detach(ascaudio_cd.cd_name, &ascaud_ca); 1046 config_cfdriver_detach(&ascaudio_cd); 1047 devsw_detach(NULL, &ascaudio_cdevsw); 1048 1049 return 0; 1050 default: 1051 return ENOTTY; 1052 } 1053 } 1054 1055 #endif 1056
Indexes created Fri Oct 03 02:09:57 GMT 2025