ascaudio.c revision 1.2
1 /* $NetBSD: ascaudio.c,v 1.2 2024/10/13 12:34:56 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 1.2 2024/10/13 12:34:56 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/obio/ascaudiovar.h> 58 #include <mac68k/obio/ascreg.h> 59 #include <mac68k/obio/obiovar.h> 60 61 #define MAC68K_ASCAUDIO_BASE 0x50f14000 62 #define MAC68K_IIFX_ASCAUDIO_BASE 0x50f10000 63 #define MAC68K_ASCAUDIO_LEN 0x1000 64 65 #define BUFSIZE 32768 66 #define PLAYBLKSIZE 8192 67 #define RECBLKSIZE 8192 68 69 static int ascaudiomatch(device_t, cfdata_t, void *); 70 static void ascaudioattach(device_t, device_t, void *); 71 72 CFATTACH_DECL_NEW(ascaudio, sizeof(struct ascaudio_softc), 73 ascaudiomatch, ascaudioattach, NULL, NULL); 74 75 extern struct cfdriver ascaudio_cd; 76 77 dev_type_open(ascaudioopen); 78 dev_type_close(ascaudioclose); 79 dev_type_read(ascaudioread); 80 dev_type_write(ascaudiowrite); 81 dev_type_ioctl(ascaudioioctl); 82 83 const struct cdevsw ascaudio_cdevsw = { 84 .d_open = ascaudioopen, 85 .d_close = ascaudioclose, 86 .d_read = ascaudioread, 87 .d_write = ascaudiowrite, 88 .d_ioctl = ascaudioioctl, 89 .d_stop = nostop, 90 .d_tty = notty, 91 .d_poll = nopoll, 92 .d_mmap = nommap, 93 .d_kqfilter = nokqfilter, 94 .d_discard = nodiscard, 95 .d_flag = 0 96 }; 97 98 static int ascaudio_query_format(void *, struct audio_format_query *); 99 static int ascaudio_set_format(void *, int, 100 const audio_params_t *, const audio_params_t *, 101 audio_filter_reg_t *, audio_filter_reg_t *); 102 static int ascaudio_start_output(void *, void *, int, 103 void (*)(void *), void *); 104 static int ascaudio_start_input(void *, void *, int, 105 void (*)(void *), void *); 106 static int ascaudio_halt(void *); 107 static int ascaudio_set_port(void *, mixer_ctrl_t *); 108 static int ascaudio_get_port(void *, mixer_ctrl_t *); 109 static int ascaudio_getdev(void *, struct audio_device *); 110 static int ascaudio_query_devinfo(void *, mixer_devinfo_t *); 111 static int ascaudio_get_props(void *); 112 static int 113 ascaudio_round_blocksize(void *, int, int, const audio_params_t *); 114 static void ascaudio_get_locks(void *, kmutex_t **, kmutex_t **); 115 static void ascaudio_intr(void *); 116 static int ascaudio_intr_est(void *); 117 static void ascaudio_intr_enable(void); 118 static void ascaudio_done_output(void *); 119 static void ascaudio_done_input(void *); 120 121 static const struct audio_hw_if ascaudio_hw_if = { 122 .query_format = ascaudio_query_format, 123 .set_format = ascaudio_set_format, 124 .start_output = ascaudio_start_output, 125 .start_input = ascaudio_start_input, 126 .halt_output = ascaudio_halt, 127 .halt_input = ascaudio_halt, 128 .set_port = ascaudio_set_port, 129 .get_port = ascaudio_get_port, 130 .getdev = ascaudio_getdev, 131 .query_devinfo = ascaudio_query_devinfo, 132 .get_props = ascaudio_get_props, 133 .round_blocksize = ascaudio_round_blocksize, 134 .get_locks = ascaudio_get_locks, 135 }; 136 137 #define EASC_VER 0xb0 138 #define EASC_VER2 0xbb 139 140 enum { 141 ASC_OUTPUT_CLASS, 142 ASC_INPUT_CLASS, 143 ASC_OUTPUT_MASTER_VOLUME, 144 ASC_INPUT_DAC_VOLUME, 145 ASC_ENUM_LAST, 146 }; 147 148 static int 149 ascaudiomatch(device_t parent, cfdata_t cf, void *aux) 150 { 151 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 152 bus_addr_t addr; 153 bus_space_handle_t bsh; 154 int rval = 0; 155 156 if (oa->oa_addr != (-1)) 157 addr = (bus_addr_t)oa->oa_addr; 158 else if (current_mac_model->machineid == MACH_MACTV) 159 return 0; 160 else if (current_mac_model->machineid == MACH_MACIIFX) 161 addr = (bus_addr_t)MAC68K_IIFX_ASCAUDIO_BASE; 162 else 163 addr = (bus_addr_t)MAC68K_ASCAUDIO_BASE; 164 165 if (bus_space_map(oa->oa_tag, addr, MAC68K_ASCAUDIO_LEN, 0, &bsh)) 166 return (0); 167 168 if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0, 1)) { 169 rval = 1; 170 } else 171 rval = 0; 172 173 bus_space_unmap(oa->oa_tag, bsh, MAC68K_ASCAUDIO_LEN); 174 175 return rval; 176 } 177 178 static void 179 ascaudioattach(device_t parent, device_t self, void *aux) 180 { 181 struct ascaudio_softc *sc = device_private(self); 182 struct obio_attach_args *oa = (struct obio_attach_args *)aux; 183 bus_addr_t addr; 184 uint8_t tmp; 185 186 sc->sc_dev = self; 187 sc->sc_tag = oa->oa_tag; 188 189 if (oa->oa_addr != (-1)) 190 addr = (bus_addr_t)oa->oa_addr; 191 else if (current_mac_model->machineid == MACH_MACIIFX) 192 addr = (bus_addr_t)MAC68K_IIFX_ASCAUDIO_BASE; 193 else 194 addr = (bus_addr_t)MAC68K_ASCAUDIO_BASE; 195 if (bus_space_map(sc->sc_tag, addr, MAC68K_ASCAUDIO_LEN, 0, 196 &sc->sc_handle)) { 197 printf(": can't map memory space\n"); 198 return; 199 } 200 201 /* Pull in the options flags. */ 202 sc->sc_options = ((device_cfdata(self)->cf_flags) & 203 ASCAUDIO_OPTIONS_MASK); 204 205 sc->sc_playbuf = kmem_alloc(BUFSIZE, KM_SLEEP); 206 sc->sc_recbuf = kmem_alloc(BUFSIZE, KM_SLEEP); 207 sc->sc_rptr = sc->sc_recbuf; 208 sc->sc_getptr = sc->sc_recbuf; 209 sc->sc_wptr = sc->sc_playbuf; 210 sc->sc_putptr = sc->sc_playbuf; 211 212 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 213 214 sc->sc_ver = bus_space_read_1(oa->oa_tag, sc->sc_handle, 0x800); 215 216 if (sc->sc_options & HIGHQUALITY) { 217 tmp = bus_space_read_1(sc->sc_tag, sc->sc_handle, ASCRATE); 218 switch (tmp) { 219 case 2: 220 sc->sc_rate = 22050; 221 break; 222 case 3: 223 sc->sc_rate = 44100; 224 break; 225 default: 226 sc->sc_rate = 22254; 227 break; 228 } 229 230 tmp = bus_space_read_1(sc->sc_tag, sc->sc_handle, ASCTRL); 231 if (tmp & STEREO) 232 sc->sc_speakers = 2; 233 else 234 sc->sc_speakers = 1; 235 236 } else { 237 __USE(tmp); 238 sc->sc_rate = 22254; 239 sc->sc_speakers = 1; 240 } 241 242 if (sc->sc_options & LOWQUALITY) { 243 sc->sc_slowcpu = true; 244 if (sc->sc_slowcpu) 245 sc->sc_rate /= 2; 246 } 247 248 if (sc->sc_ver == EASC_VER2) 249 sc->sc_ver = EASC_VER; 250 251 if (sc->sc_ver != EASC_VER) 252 printf(": Apple Sound Chip"); 253 else 254 printf(": Enhanced Apple Sound Chip"); 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_HIGH); 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 = 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"); 282 283 284 if (sc->sc_ver != EASC_VER) 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 2 356 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_LE, 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_LE, 373 .validbits = 8, 374 .precision = 8, 375 .channels = 1, 376 .channel_mask = AUFMT_MONAURAL, 377 .frequency_type = 1, 378 .frequency = { 11025 }, } 379 }; 380 381 return audio_query_format(asc_formats, ASCAUDIO_NFORMATS, ae); 382 } 383 384 static int 385 ascaudio_set_format(void *opaque, int setmode, 386 const audio_params_t *play, const audio_params_t *rec, 387 audio_filter_reg_t *pfil, audio_filter_reg_t *rfil) 388 { 389 struct ascaudio_softc *sc = opaque; 390 391 KASSERT(mutex_owned(&sc->sc_lock)); 392 393 return 0; 394 } 395 396 static int 397 ascaudio_start_output(void *opaque, void *block, int blksize, 398 void (*intr)(void *), void *intrarg) 399 { 400 struct ascaudio_softc *sc; 401 uint8_t *loc, tmp; 402 int total; 403 404 sc = (struct ascaudio_softc *)opaque; 405 if (!sc) 406 return (ENODEV); 407 408 sc->sc_pintr = intr; 409 sc->sc_pintrarg = intrarg; 410 411 412 loc = block; 413 if (bus_space_read_1(sc->sc_tag, sc->sc_handle, ASCMODE) != 414 MODEFIFO) { 415 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 416 417 if (sc->sc_ver == EASC_VER) { 418 /* disable half interrupts channel a */ 419 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, 420 DISABLEHALFIRQ); 421 /* Disable half interrupts channel b */ 422 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 423 DISABLEHALFIRQ); 424 } 425 426 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCTEST, 0); 427 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, 428 CLEARFIFO); 429 tmp = 0; 430 bus_space_write_1(sc->sc_tag, sc->sc_handle, APLAYREC, tmp); 431 432 if (sc->sc_ver == EASC_VER) { 433 /* enable interrupts channel b */ 434 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 0); 435 } 436 } 437 438 /* set the volume */ 439 tmp = sc->sc_vol >> 5; 440 /* set volume for channel b left and right speakers */ 441 if (sc->sc_ver == EASC_VER) { 442 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_LEFT_VOL, tmp); 443 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_LEFT_VOL, tmp); 444 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_RIGHT_VOL, tmp); 445 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_RIGHT_VOL, tmp); 446 } else 447 bus_space_write_1(sc->sc_tag, sc->sc_handle, INTVOL, tmp << 5); 448 449 total = blksize; 450 if (sc->sc_putptr + blksize > sc->sc_playbuf + BUFSIZE) 451 total = sc->sc_playbuf + BUFSIZE - sc->sc_putptr; 452 453 memcpy(sc->sc_putptr, loc, total); 454 sc->sc_putptr += total; 455 loc += total; 456 457 total = blksize - total; 458 if (total) { 459 sc->sc_putptr = sc->sc_playbuf; 460 memcpy(sc->sc_playbuf, loc, total); 461 sc->sc_putptr += total; 462 } 463 464 sc->sc_avail += blksize; 465 if (sc->sc_avail > BUFSIZE) 466 sc->sc_avail = BUFSIZE; 467 468 /* start fifo playback */ 469 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODEFIFO); 470 471 return 0; 472 } 473 474 static int 475 ascaudio_start_input(void *opaque, void *block, int blksize, 476 void (*intr)(void *), void *intrarg) 477 { 478 struct ascaudio_softc *sc; 479 uint8_t tmp; 480 int total; 481 482 sc = (struct ascaudio_softc *)opaque; 483 if (!sc) 484 return (ENODEV); 485 486 487 uint8_t *loc; 488 loc = block; 489 490 sc->sc_rintr = intr; 491 sc->sc_rintrarg = intrarg; 492 493 if (bus_space_read_1(sc->sc_tag, sc->sc_handle, ASCMODE) != 494 MODEFIFO) { 495 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 496 497 if (sc->sc_ver == EASC_VER) { 498 /* disable half interrupts channel a */ 499 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, 500 DISABLEHALFIRQ); 501 /* Disable half interrupts channel b */ 502 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, 503 DISABLEHALFIRQ); 504 } 505 506 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCTEST, 0); 507 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, 508 CLEARFIFO); 509 tmp = RECORDA; 510 bus_space_write_1(sc->sc_tag, sc->sc_handle, APLAYREC, tmp); 511 bus_space_write_1(sc->sc_tag, sc->sc_handle, INTVOL, 0xa0); 512 513 if (sc->sc_ver == EASC_VER) { 514 /* enable interrupts channel a */ 515 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, 0); 516 } 517 518 /* start fifo playback */ 519 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODEFIFO); 520 521 return 0; 522 } 523 524 /* set the volume */ 525 tmp = sc->sc_vol >> 5; 526 /* set volume for channel b left and right speakers */ 527 if (sc->sc_ver == EASC_VER) { 528 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_LEFT_VOL, tmp); 529 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_LEFT_VOL, tmp); 530 bus_space_write_1(sc->sc_tag, sc->sc_handle, A_RIGHT_VOL, tmp); 531 bus_space_write_1(sc->sc_tag, sc->sc_handle, B_RIGHT_VOL, tmp); 532 } else 533 bus_space_write_1(sc->sc_tag, sc->sc_handle, INTVOL, tmp << 5); 534 535 total = blksize; 536 if (sc->sc_getptr + blksize > sc->sc_recbuf + BUFSIZE) 537 total = sc->sc_recbuf + BUFSIZE - sc->sc_getptr; 538 539 memcpy(loc, sc->sc_getptr, total); 540 sc->sc_getptr += total; 541 loc += total; 542 543 if (sc->sc_getptr >= sc->sc_recbuf + BUFSIZE) 544 sc->sc_getptr = sc->sc_recbuf; 545 546 total = blksize - total; 547 if (total) { 548 memcpy(loc, sc->sc_getptr, total); 549 sc->sc_getptr += total; 550 } 551 552 sc->sc_recavail -= blksize; 553 554 return 0; 555 } 556 557 static int 558 ascaudio_halt(void *opaque) 559 { 560 ascaudio_softc_t *sc; 561 562 sc = (ascaudio_softc_t *)opaque; 563 564 KASSERT(mutex_owned(&sc->sc_lock)); 565 566 567 sc->sc_pintr = NULL; 568 sc->sc_pintrarg = NULL; 569 sc->sc_rintr = NULL; 570 sc->sc_rintrarg = NULL; 571 572 sc->sc_avail = 0; 573 sc->sc_recavail = 0; 574 575 callout_halt(&sc->sc_pcallout, &sc->sc_lock); 576 callout_halt(&sc->sc_rcallout, &sc->sc_lock); 577 578 bus_space_write_1(sc->sc_tag, sc->sc_handle, ASCMODE, MODESTOP); 579 580 bus_space_write_1(sc->sc_tag, sc->sc_handle, FIFOPARAM, CLEARFIFO); 581 582 sc->sc_rptr = sc->sc_recbuf; 583 sc->sc_getptr = sc->sc_recbuf; 584 sc->sc_wptr = sc->sc_playbuf; 585 sc->sc_putptr = sc->sc_playbuf; 586 587 if (sc->sc_ver != EASC_VER) 588 return 0; 589 590 /* disable half interrupts channel a */ 591 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQA, DISABLEHALFIRQ); 592 /* disable half interrupts channel b */ 593 bus_space_write_1(sc->sc_tag, sc->sc_handle, IRQB, DISABLEHALFIRQ); 594 595 return 0; 596 } 597 598 static int 599 ascaudio_getdev(void *opaque, struct audio_device *ret) 600 { 601 strlcpy(ret->name, "Apple ASC Audio", sizeof(ret->name)); 602 strlcpy(ret->version, osrelease, sizeof(ret->version)); 603 strlcpy(ret->config, "ascaudio", sizeof(ret->config)); 604 605 return 0; 606 } 607 608 static int 609 ascaudio_set_port(void *opaque, mixer_ctrl_t *mc) 610 { 611 struct ascaudio_softc *sc = opaque; 612 613 KASSERT(mutex_owned(&sc->sc_lock)); 614 615 switch (mc->dev) { 616 case ASC_OUTPUT_MASTER_VOLUME: 617 case ASC_INPUT_DAC_VOLUME: 618 if (mc->un.value.num_channels != 1) 619 return EINVAL; 620 sc->sc_vol = mc->un.value.level[AUDIO_MIXER_LEVEL_MONO]; 621 return 0; 622 } 623 624 return ENXIO; 625 } 626 627 static int 628 ascaudio_get_port(void *opaque, mixer_ctrl_t *mc) 629 { 630 struct ascaudio_softc *sc = opaque; 631 632 KASSERT(mutex_owned(&sc->sc_lock)); 633 634 switch (mc->dev) { 635 case ASC_OUTPUT_MASTER_VOLUME: 636 case ASC_INPUT_DAC_VOLUME: 637 if (mc->un.value.num_channels != 1) 638 return EINVAL; 639 mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = sc->sc_vol; 640 return 0; 641 } 642 643 return ENXIO; 644 } 645 646 static int 647 ascaudio_query_devinfo(void *opaque, mixer_devinfo_t *di) 648 { 649 ascaudio_softc_t *sc __diagused; 650 651 sc = (ascaudio_softc_t *)opaque; 652 653 KASSERT(mutex_owned(&sc->sc_lock)); 654 655 switch (di->index) { 656 case ASC_OUTPUT_CLASS: 657 di->mixer_class = ASC_OUTPUT_CLASS; 658 strcpy(di->label.name, AudioCoutputs); 659 di->type = AUDIO_MIXER_CLASS; 660 di->next = di->prev = AUDIO_MIXER_LAST; 661 return 0; 662 case ASC_INPUT_CLASS: 663 di->mixer_class = ASC_INPUT_CLASS; 664 strcpy(di->label.name, AudioCinputs); 665 di->type = AUDIO_MIXER_CLASS; 666 di->next = di->prev = AUDIO_MIXER_LAST; 667 return 0; 668 case ASC_OUTPUT_MASTER_VOLUME: 669 di->mixer_class = ASC_OUTPUT_CLASS; 670 strcpy(di->label.name, AudioNmaster); 671 di->type = AUDIO_MIXER_VALUE; 672 di->next = di->prev = AUDIO_MIXER_LAST; 673 di->un.v.num_channels = 1; 674 strcpy(di->un.v.units.name, AudioNvolume); 675 return 0; 676 case ASC_INPUT_DAC_VOLUME: 677 di->mixer_class = ASC_INPUT_CLASS; 678 strcpy(di->label.name, AudioNdac); 679 di->type = AUDIO_MIXER_VALUE; 680 di->next = di->prev = AUDIO_MIXER_LAST; 681 di->un.v.num_channels = 1; 682 strcpy(di->un.v.units.name, AudioNvolume); 683 return 0; 684 } 685 686 return ENXIO; 687 } 688 689 static int 690 ascaudio_get_props(void *opaque) 691 { 692 693 return AUDIO_PROP_PLAYBACK | AUDIO_PROP_CAPTURE | 694 AUDIO_PROP_INDEPENDENT; 695 } 696 697 static int 698 ascaudio_round_blocksize(void *opaque, int blksize, int mode, 699 const audio_params_t *p) 700 { 701 ascaudio_softc_t *sc __diagused; 702 703 sc = (ascaudio_softc_t *)opaque; 704 KASSERT(mutex_owned(&sc->sc_lock)); 705 706 if (mode == AUMODE_PLAY) 707 return PLAYBLKSIZE; 708 else 709 return RECBLKSIZE; 710 } 711 712 static void 713 ascaudio_get_locks(void *opaque, kmutex_t **intr, kmutex_t **thread) 714 { 715 ascaudio_softc_t *sc; 716 717 sc = (ascaudio_softc_t *)opaque; 718 719 *intr = &sc->sc_intr_lock; 720 *thread = &sc->sc_lock; 721 } 722 723 static int 724 ascaudio_intr_est(void *arg) 725 { 726 ascaudio_intr(arg); 727 728 return 0; 729 } 730 731 static void 732 ascaudio_intr(void *arg) 733 { 734 struct ascaudio_softc *sc = arg; 735 uint8_t status, val; 736 bool again; 737 int total, count, i; 738 739 if (!sc) 740 return; 741 742 if (!sc->sc_pintr && !sc->sc_rintr) 743 return; 744 745 mutex_enter(&sc->sc_intr_lock); 746 do { 747 status = bus_space_read_1(sc->sc_tag, sc->sc_handle, 748 FIFOSTATUS); 749 again = false; 750 count = 0; 751 if ((status & A_HALF) == 0) 752 count = 0x200; 753 if (count && ((status & A_FULL) == 0)) 754 count = 0x400; 755 756 if (sc->sc_rintr && count) { 757 total = count; 758 if (sc->sc_rptr + count > sc->sc_recbuf + BUFSIZE) 759 count = sc->sc_recbuf + BUFSIZE - sc->sc_rptr; 760 761 while (total) { 762 for (i = 0; i < count; i++) { 763 val = bus_space_read_1(sc->sc_tag, 764 sc->sc_handle, FIFO_A); 765 val ^= 0x80; 766 *sc->sc_rptr++ = val; 767 } 768 if (sc->sc_rptr >= sc->sc_recbuf + BUFSIZE) 769 sc->sc_rptr = sc->sc_recbuf; 770 total -= count; 771 sc->sc_recavail += count; 772 } 773 774 if (sc->sc_recavail > BUFSIZE) 775 sc->sc_recavail = BUFSIZE; 776 } 777 778 count = 0; 779 if (status & B_FULL) 780 count = 0x400; 781 else if (status & B_HALF) 782 count = 0x200; 783 784 if (sc->sc_slowcpu) 785 count /= 2; 786 787 if (sc->sc_pintr && count) { 788 if (sc->sc_avail < count) { 789 if (sc->sc_pintr) { 790 for (i = 0; i < 0x200; i++) { 791 bus_space_write_1(sc->sc_tag, 792 sc->sc_handle, FIFO_A, 793 0x80); 794 bus_space_write_1(sc->sc_tag, 795 sc->sc_handle, FIFO_B, 796 0x80); 797 } 798 } else { 799 for (i = 0; i < 0x200; i++) { 800 bus_space_write_1(sc->sc_tag, 801 sc->sc_handle, FIFO_B, 802 0x80); 803 } 804 } 805 } else if (sc->sc_slowcpu) { 806 for (i = 0; i < count; i++) { 807 val = *sc->sc_wptr++; 808 val ^= 0x80; 809 bus_space_write_1(sc->sc_tag, 810 sc->sc_handle, FIFO_A, val); 811 bus_space_write_1(sc->sc_tag, 812 sc->sc_handle, FIFO_B, val); 813 bus_space_write_1(sc->sc_tag, 814 sc->sc_handle, FIFO_A, val); 815 bus_space_write_1(sc->sc_tag, 816 sc->sc_handle, FIFO_B, val); 817 } 818 sc->sc_avail -= count; 819 again = true; 820 } else { 821 for (i = 0; i < count; i++) { 822 val = *sc->sc_wptr++; 823 val ^= 0x80; 824 bus_space_write_1(sc->sc_tag, 825 sc->sc_handle, FIFO_A, val); 826 bus_space_write_1(sc->sc_tag, 827 sc->sc_handle, FIFO_B, val); 828 } 829 sc->sc_avail -= count; 830 again = true; 831 } 832 if (sc->sc_wptr >= sc->sc_playbuf + BUFSIZE) 833 sc->sc_wptr = sc->sc_playbuf; 834 } 835 836 if (sc->sc_pintr && (sc->sc_avail <= PLAYBLKSIZE)) 837 callout_schedule(&sc->sc_pcallout, 0); 838 839 if (sc->sc_rintr && (sc->sc_recavail >= RECBLKSIZE)) 840 callout_schedule(&sc->sc_rcallout, 0); 841 } while (again); 842 mutex_exit(&sc->sc_intr_lock); 843 } 844 845 static void 846 ascaudio_intr_enable(void) 847 { 848 int s; 849 850 s = splhigh(); 851 if (VIA2 == VIA2OFF) 852 via2_reg(vIER) = 0x80 | V2IF_ASC; 853 else 854 via2_reg(rIER) = 0x80 | V2IF_ASC; 855 splx(s); 856 } 857 858 static void 859 ascaudio_done_output(void *arg) 860 { 861 struct ascaudio_softc *sc = arg; 862 863 mutex_enter(&sc->sc_intr_lock); 864 if (sc->sc_pintr) 865 (*sc->sc_pintr)(sc->sc_pintrarg); 866 mutex_exit(&sc->sc_intr_lock); 867 } 868 869 static void 870 ascaudio_done_input(void *arg) 871 { 872 struct ascaudio_softc *sc = arg; 873 874 mutex_enter(&sc->sc_intr_lock); 875 if (sc->sc_rintr) 876 (*sc->sc_rintr)(sc->sc_rintrarg); 877 mutex_exit(&sc->sc_intr_lock); 878 } 879 880 #ifdef _MODULE 881 882 MODULE(MODULE_CLASS_DRIVER, ascaudio, "audio"); 883 884 static const struct cfiattrdata audiobuscf_iattrdata = { 885 "audiobus", 0, { { NULL, NULL, 0 }, } 886 }; 887 static const struct cfiattrdata * const ascaudio_attrs[] = { 888 &audiobuscf_iattrdata, NULL 889 }; 890 891 CFDRIVER_DECL(ascaudio, DV_DULL, ascaud_attrs); 892 extern struct cfattach ascaudio_ca; 893 static int ascaudioloc[] = { -1, -1 }; 894 895 static struct cfdata ascaudio_cfdata[] = { 896 { 897 .cf_name = "ascaudio", 898 .cf_atname = "ascaudio", 899 .cf_unit = 0, 900 .cf_fstate = FSTATE_STAR, 901 .cf_loc = ascaudioloc, 902 .cf_flags = 0, 903 .cf_pspec = NULL, 904 }, 905 { NULL, NULL, 0, 0, NULL, 0, NULL } 906 }; 907 908 static int 909 ascaudio_modcmd(modcmd_t cmd, void *arg) 910 { 911 devmajor_t cmajor = NODEVMAJOR, bmajor = NODEVMAJOR; 912 int error; 913 914 switch (cmd) { 915 case MODULE_CMD_INIT: 916 error = config_cfdriver_attach(&ascaudio_cd); 917 if (error) { 918 return error; 919 } 920 921 error = config_cfattach_attach(ascaudio_cd.cd_name, &ascaud_ca); 922 if (error) { 923 config_cfdriver_detach(&ascaudio_cd); 924 aprint_error("%s: unable to register cfattach\n", 925 ascaudio_cd.cd_name); 926 927 return error; 928 } 929 930 error = config_cfdata_attach(ascaudio_cfdata, 1); 931 if (error) { 932 config_cfattach_detach(ascaudio_cd.cd_name, &ascaud_ca); 933 config_cfdriver_detach(&ascaudio_cd); 934 aprint_error("%s: unable to register cfdata\n", 935 ascaudio_cd.cd_name); 936 937 return error; 938 } 939 940 error = devsw_attach(ascaudio_cd.cd_name, NULL, &bmajor, 941 &ascaudio_cdevsw, &cmajor); 942 if (error) { 943 error = config_cfdata_detach(ascaudio_cfdata); 944 if (error) { 945 return error; 946 } 947 config_cfattach_detach(ascaudio_cd.cd_name, &ascaud_ca); 948 config_cfdriver_detach(&ascaudio_cd); 949 aprint_error("%s: unable to register devsw\n", 950 ascaudio_cd.cd_name); 951 952 return error; 953 } 954 955 (void)config_attach_pseudo(ascaudio_cfdata); 956 957 return 0; 958 case MODULE_CMD_FINI: 959 error = config_cfdata_detach(ascaudio_cfdata); 960 if (error) { 961 return error; 962 } 963 964 config_cfattach_detach(ascaudio_cd.cd_name, &ascaud_ca); 965 config_cfdriver_detach(&ascaudio_cd); 966 devsw_detach(NULL, &ascaudio_cdevsw); 967 968 return 0; 969 default: 970 return ENOTTY; 971 } 972 } 973 974 #endif 975
Indexes created Fri Oct 03 02:09:57 GMT 2025