1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733
|
/*
* QEMU Apple Sound Chip emulation
*
* Apple Sound Chip (ASC) 344S0063
* Enhanced Apple Sound Chip (EASC) 343S1063
*
* Copyright (c) 2012-2018 Laurent Vivier <laurent@vivier.eu>
* Copyright (c) 2022 Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "qemu/timer.h"
#include "qapi/error.h"
#include "hw/sysbus.h"
#include "hw/irq.h"
#include "audio/audio.h"
#include "hw/audio/asc.h"
#include "hw/qdev-properties.h"
#include "migration/vmstate.h"
#include "trace.h"
/*
* Linux doesn't provide information about ASC, see arch/m68k/mac/macboing.c
* and arch/m68k/include/asm/mac_asc.h
*
* best information is coming from MAME:
* https://github.com/mamedev/mame/blob/master/src/devices/sound/asc.h
* https://github.com/mamedev/mame/blob/master/src/devices/sound/asc.cpp
* Emulation by R. Belmont
* or MESS:
* http://mess.redump.net/mess/driver_info/easc
*
* 0x800: VERSION
* 0x801: MODE
* 1=FIFO mode,
* 2=wavetable mode
* 0x802: CONTROL
* bit 0=analog or PWM output,
* 1=stereo/mono,
* 7=processing time exceeded
* 0x803: FIFO MODE
* bit 7=clear FIFO,
* bit 1="non-ROM companding",
* bit 0="ROM companding")
* 0x804: FIFO IRQ STATUS
* bit 0=ch A 1/2 full,
* 1=ch A full,
* 2=ch B 1/2 full,
* 3=ch B full)
* 0x805: WAVETABLE CONTROL
* bits 0-3 wavetables 0-3 start
* 0x806: VOLUME
* bits 2-4 = 3 bit internal ASC volume,
* bits 5-7 = volume control sent to Sony sound chip
* 0x807: CLOCK RATE
* 0 = Mac 22257 Hz,
* 1 = undefined,
* 2 = 22050 Hz,
* 3 = 44100 Hz
* 0x80a: PLAY REC A
* 0x80f: TEST
* bits 6-7 = digital test,
* bits 4-5 = analog test
* 0x810: WAVETABLE 0 PHASE
* big-endian 9.15 fixed-point, only 24 bits valid
* 0x814: WAVETABLE 0 INCREMENT
* big-endian 9.15 fixed-point, only 24 bits valid
* 0x818: WAVETABLE 1 PHASE
* 0x81C: WAVETABLE 1 INCREMENT
* 0x820: WAVETABLE 2 PHASE
* 0x824: WAVETABLE 2 INCREMENT
* 0x828: WAVETABLE 3 PHASE
* 0x82C: WAVETABLE 3 INCREMENT
* 0x830: UNKNOWN START
* NetBSD writes Wavetable data here (are there more
* wavetables/channels than we know about?)
* 0x857: UNKNOWN END
*/
#define ASC_SIZE 0x2000
enum {
ASC_VERSION = 0x00,
ASC_MODE = 0x01,
ASC_CONTROL = 0x02,
ASC_FIFOMODE = 0x03,
ASC_FIFOIRQ = 0x04,
ASC_WAVECTRL = 0x05,
ASC_VOLUME = 0x06,
ASC_CLOCK = 0x07,
ASC_PLAYRECA = 0x0a,
ASC_TEST = 0x0f,
ASC_WAVETABLE = 0x10
};
#define ASC_FIFO_STATUS_HALF_FULL 1
#define ASC_FIFO_STATUS_FULL_EMPTY 2
#define ASC_EXTREGS_FIFOCTRL 0x8
#define ASC_EXTREGS_INTCTRL 0x9
#define ASC_EXTREGS_CDXA_DECOMP_FILT 0x10
#define ASC_FIFO_CYCLE_TIME ((NANOSECONDS_PER_SECOND / ASC_FREQ) * \
0x400)
static void asc_raise_irq(ASCState *s)
{
qemu_set_irq(s->irq, 1);
}
static void asc_lower_irq(ASCState *s)
{
qemu_set_irq(s->irq, 0);
}
static uint8_t asc_fifo_get(ASCFIFOState *fs)
{
ASCState *s = container_of(fs, ASCState, fifos[fs->index]);
bool fifo_half_irq_enabled = fs->extregs[ASC_EXTREGS_INTCTRL] & 1;
uint8_t val;
assert(fs->cnt);
val = fs->fifo[fs->rptr];
trace_asc_fifo_get('A' + fs->index, fs->rptr, fs->cnt, val);
fs->rptr++;
fs->rptr &= 0x3ff;
fs->cnt--;
if (fs->cnt <= 0x1ff) {
/* FIFO less than half full */
fs->int_status |= ASC_FIFO_STATUS_HALF_FULL;
} else {
/* FIFO more than half full */
fs->int_status &= ~ASC_FIFO_STATUS_HALF_FULL;
}
if (fs->cnt == 0x1ff && fifo_half_irq_enabled) {
/* Raise FIFO half full IRQ */
asc_raise_irq(s);
}
if (fs->cnt == 0) {
/* Raise FIFO empty IRQ */
fs->int_status |= ASC_FIFO_STATUS_FULL_EMPTY;
asc_raise_irq(s);
}
return val;
}
static int generate_fifo(ASCState *s, int maxsamples)
{
int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
uint8_t *buf = s->mixbuf;
int i, wcount = 0;
while (wcount < maxsamples) {
uint8_t val;
int16_t d, f0, f1;
int32_t t;
int shift, filter;
bool hasdata = false;
for (i = 0; i < 2; i++) {
ASCFIFOState *fs = &s->fifos[i];
switch (fs->extregs[ASC_EXTREGS_FIFOCTRL] & 0x83) {
case 0x82:
/*
* CD-XA BRR mode: decompress 15 bytes into 28 16-bit
* samples
*/
if (!fs->cnt) {
val = 0x80;
break;
}
if (fs->xa_cnt == -1) {
/* Start of packet, get flags */
fs->xa_flags = asc_fifo_get(fs);
fs->xa_cnt = 0;
}
shift = fs->xa_flags & 0xf;
filter = fs->xa_flags >> 4;
f0 = (int8_t)fs->extregs[ASC_EXTREGS_CDXA_DECOMP_FILT +
(filter << 1) + 1];
f1 = (int8_t)fs->extregs[ASC_EXTREGS_CDXA_DECOMP_FILT +
(filter << 1)];
if ((fs->xa_cnt & 1) == 0) {
if (!fs->cnt) {
val = 0x80;
break;
}
fs->xa_val = asc_fifo_get(fs);
d = (fs->xa_val & 0xf) << 12;
} else {
d = (fs->xa_val & 0xf0) << 8;
}
t = (d >> shift) + (((fs->xa_last[0] * f0) +
(fs->xa_last[1] * f1) + 32) >> 6);
if (t < -32768) {
t = -32768;
} else if (t > 32767) {
t = 32767;
}
/*
* CD-XA BRR generates 16-bit signed output, so convert to
* 8-bit before writing to buffer. Does real hardware do the
* same?
*/
val = (uint8_t)(t / 256) ^ 0x80;
hasdata = true;
fs->xa_cnt++;
fs->xa_last[1] = fs->xa_last[0];
fs->xa_last[0] = (int16_t)t;
if (fs->xa_cnt == 28) {
/* End of packet */
fs->xa_cnt = -1;
}
break;
default:
/* fallthrough */
case 0x80:
/* Raw mode */
if (fs->cnt) {
val = asc_fifo_get(fs);
hasdata = true;
} else {
val = 0x80;
}
break;
}
buf[wcount * 2 + i] = val;
}
if (!hasdata) {
break;
}
wcount++;
}
/*
* MacOS (un)helpfully leaves the FIFO engine running even when it has
* finished writing out samples, but still expects the FIFO empty
* interrupts to be generated for each FIFO cycle (without these interrupts
* MacOS will freeze)
*/
if (s->fifos[0].cnt == 0 && s->fifos[1].cnt == 0) {
if (!s->fifo_empty_ns) {
/* FIFO has completed first empty cycle */
s->fifo_empty_ns = now;
} else if (now > (s->fifo_empty_ns + ASC_FIFO_CYCLE_TIME)) {
/* FIFO has completed entire cycle with no data */
s->fifos[0].int_status |= ASC_FIFO_STATUS_HALF_FULL |
ASC_FIFO_STATUS_FULL_EMPTY;
s->fifos[1].int_status |= ASC_FIFO_STATUS_HALF_FULL |
ASC_FIFO_STATUS_FULL_EMPTY;
s->fifo_empty_ns = now;
asc_raise_irq(s);
}
} else {
/* FIFO contains data, reset empty time */
s->fifo_empty_ns = 0;
}
return wcount;
}
static int generate_wavetable(ASCState *s, int maxsamples)
{
uint8_t *buf = s->mixbuf;
int channel, count = 0;
while (count < maxsamples) {
uint32_t left = 0, right = 0;
uint8_t sample;
for (channel = 0; channel < 4; channel++) {
ASCFIFOState *fs = &s->fifos[channel >> 1];
int chanreg = ASC_WAVETABLE + (channel << 3);
uint32_t phase, incr, offset;
phase = ldl_be_p(&s->regs[chanreg]);
incr = ldl_be_p(&s->regs[chanreg + sizeof(uint32_t)]);
phase += incr;
offset = (phase >> 15) & 0x1ff;
sample = fs->fifo[0x200 * (channel >> 1) + offset];
stl_be_p(&s->regs[chanreg], phase);
left += sample;
right += sample;
}
buf[count * 2] = left >> 2;
buf[count * 2 + 1] = right >> 2;
count++;
}
return count;
}
static void asc_out_cb(void *opaque, int free_b)
{
ASCState *s = opaque;
int samples, generated;
if (free_b == 0) {
return;
}
samples = MIN(s->samples, free_b >> s->shift);
switch (s->regs[ASC_MODE] & 3) {
default:
/* Off */
generated = 0;
break;
case 1:
/* FIFO mode */
generated = generate_fifo(s, samples);
break;
case 2:
/* Wave table mode */
generated = generate_wavetable(s, samples);
break;
}
if (!generated) {
/* Workaround for audio underflow bug on Windows dsound backend */
int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
int silent_samples = muldiv64(now - s->fifo_empty_ns,
NANOSECONDS_PER_SECOND, ASC_FREQ);
if (silent_samples > ASC_FIFO_CYCLE_TIME / 2) {
/*
* No new FIFO data within half a cycle time (~23ms) so fill the
* entire available buffer with silence. This prevents an issue
* with the Windows dsound backend whereby the sound appears to
* loop because the FIFO has run out of data, and the driver
* reuses the stale content in its circular audio buffer.
*/
AUD_write(s->voice, s->silentbuf, samples << s->shift);
}
return;
}
AUD_write(s->voice, s->mixbuf, generated << s->shift);
}
static uint64_t asc_fifo_read(void *opaque, hwaddr addr,
unsigned size)
{
ASCFIFOState *fs = opaque;
trace_asc_read_fifo('A' + fs->index, addr, size, fs->fifo[addr]);
return fs->fifo[addr];
}
static void asc_fifo_write(void *opaque, hwaddr addr, uint64_t value,
unsigned size)
{
ASCFIFOState *fs = opaque;
ASCState *s = container_of(fs, ASCState, fifos[fs->index]);
bool fifo_half_irq_enabled = fs->extregs[ASC_EXTREGS_INTCTRL] & 1;
trace_asc_write_fifo('A' + fs->index, addr, size, fs->wptr, fs->cnt, value);
if (s->regs[ASC_MODE] == 1) {
fs->fifo[fs->wptr++] = value;
fs->wptr &= 0x3ff;
fs->cnt++;
if (fs->cnt <= 0x1ff) {
/* FIFO less than half full */
fs->int_status |= ASC_FIFO_STATUS_HALF_FULL;
} else {
/* FIFO at least half full */
fs->int_status &= ~ASC_FIFO_STATUS_HALF_FULL;
}
if (fs->cnt == 0x200 && fifo_half_irq_enabled) {
/* Raise FIFO half full interrupt */
asc_raise_irq(s);
}
if (fs->cnt == 0x3ff) {
/* Raise FIFO full interrupt */
fs->int_status |= ASC_FIFO_STATUS_FULL_EMPTY;
asc_raise_irq(s);
}
} else {
fs->fifo[addr] = value;
}
return;
}
static const MemoryRegionOps asc_fifo_ops = {
.read = asc_fifo_read,
.write = asc_fifo_write,
.impl = {
.min_access_size = 1,
.max_access_size = 1,
},
.endianness = DEVICE_BIG_ENDIAN,
};
static void asc_fifo_reset(ASCFIFOState *fs);
static uint64_t asc_read(void *opaque, hwaddr addr,
unsigned size)
{
ASCState *s = opaque;
uint64_t prev, value;
switch (addr) {
case ASC_VERSION:
switch (s->type) {
default:
case ASC_TYPE_ASC:
value = 0;
break;
case ASC_TYPE_EASC:
value = 0xb0;
break;
}
break;
case ASC_FIFOIRQ:
prev = (s->fifos[0].int_status & 0x3) |
(s->fifos[1].int_status & 0x3) << 2;
s->fifos[0].int_status = 0;
s->fifos[1].int_status = 0;
asc_lower_irq(s);
value = prev;
break;
default:
value = s->regs[addr];
break;
}
trace_asc_read_reg(addr, size, value);
return value;
}
static void asc_write(void *opaque, hwaddr addr, uint64_t value,
unsigned size)
{
ASCState *s = opaque;
switch (addr) {
case ASC_MODE:
value &= 3;
if (value != s->regs[ASC_MODE]) {
asc_fifo_reset(&s->fifos[0]);
asc_fifo_reset(&s->fifos[1]);
asc_lower_irq(s);
if (value != 0) {
AUD_set_active_out(s->voice, 1);
} else {
AUD_set_active_out(s->voice, 0);
}
}
break;
case ASC_FIFOMODE:
if (value & 0x80) {
asc_fifo_reset(&s->fifos[0]);
asc_fifo_reset(&s->fifos[1]);
asc_lower_irq(s);
}
break;
case ASC_WAVECTRL:
break;
case ASC_VOLUME:
{
int vol = (value & 0xe0);
AUD_set_volume_out(s->voice, 0, vol, vol);
break;
}
}
trace_asc_write_reg(addr, size, value);
s->regs[addr] = value;
}
static const MemoryRegionOps asc_regs_ops = {
.read = asc_read,
.write = asc_write,
.endianness = DEVICE_BIG_ENDIAN,
.impl = {
.min_access_size = 1,
.max_access_size = 1,
}
};
static uint64_t asc_ext_read(void *opaque, hwaddr addr,
unsigned size)
{
ASCFIFOState *fs = opaque;
uint64_t value;
value = fs->extregs[addr];
trace_asc_read_extreg('A' + fs->index, addr, size, value);
return value;
}
static void asc_ext_write(void *opaque, hwaddr addr, uint64_t value,
unsigned size)
{
ASCFIFOState *fs = opaque;
trace_asc_write_extreg('A' + fs->index, addr, size, value);
fs->extregs[addr] = value;
}
static const MemoryRegionOps asc_extregs_ops = {
.read = asc_ext_read,
.write = asc_ext_write,
.impl = {
.min_access_size = 1,
.max_access_size = 1,
},
.endianness = DEVICE_BIG_ENDIAN,
};
static int asc_post_load(void *opaque, int version)
{
ASCState *s = ASC(opaque);
if (s->regs[ASC_MODE] != 0) {
AUD_set_active_out(s->voice, 1);
}
return 0;
}
static const VMStateDescription vmstate_asc_fifo = {
.name = "apple-sound-chip.fifo",
.version_id = 0,
.minimum_version_id = 0,
.fields = (const VMStateField[]) {
VMSTATE_UINT8_ARRAY(fifo, ASCFIFOState, ASC_FIFO_SIZE),
VMSTATE_UINT8(int_status, ASCFIFOState),
VMSTATE_INT32(cnt, ASCFIFOState),
VMSTATE_INT32(wptr, ASCFIFOState),
VMSTATE_INT32(rptr, ASCFIFOState),
VMSTATE_UINT8_ARRAY(extregs, ASCFIFOState, ASC_EXTREG_SIZE),
VMSTATE_INT32(xa_cnt, ASCFIFOState),
VMSTATE_UINT8(xa_val, ASCFIFOState),
VMSTATE_UINT8(xa_flags, ASCFIFOState),
VMSTATE_INT16_ARRAY(xa_last, ASCFIFOState, 2),
VMSTATE_END_OF_LIST()
}
};
static const VMStateDescription vmstate_asc = {
.name = "apple-sound-chip",
.version_id = 0,
.minimum_version_id = 0,
.post_load = asc_post_load,
.fields = (const VMStateField[]) {
VMSTATE_STRUCT_ARRAY(fifos, ASCState, 2, 0, vmstate_asc_fifo,
ASCFIFOState),
VMSTATE_UINT8_ARRAY(regs, ASCState, ASC_REG_SIZE),
VMSTATE_INT64(fifo_empty_ns, ASCState),
VMSTATE_END_OF_LIST()
}
};
static void asc_fifo_reset(ASCFIFOState *fs)
{
fs->wptr = 0;
fs->rptr = 0;
fs->cnt = 0;
fs->xa_cnt = -1;
fs->int_status = 0;
}
static void asc_fifo_init(ASCFIFOState *fs, int index)
{
ASCState *s = container_of(fs, ASCState, fifos[index]);
char *name;
fs->index = index;
name = g_strdup_printf("asc.fifo%c", 'A' + index);
memory_region_init_io(&fs->mem_fifo, OBJECT(s), &asc_fifo_ops, fs,
name, ASC_FIFO_SIZE);
g_free(name);
name = g_strdup_printf("asc.extregs%c", 'A' + index);
memory_region_init_io(&fs->mem_extregs, OBJECT(s), &asc_extregs_ops,
fs, name, ASC_EXTREG_SIZE);
g_free(name);
}
static void asc_reset_hold(Object *obj, ResetType type)
{
ASCState *s = ASC(obj);
AUD_set_active_out(s->voice, 0);
memset(s->regs, 0, sizeof(s->regs));
asc_fifo_reset(&s->fifos[0]);
asc_fifo_reset(&s->fifos[1]);
s->fifo_empty_ns = 0;
if (s->type == ASC_TYPE_ASC) {
/* FIFO half full IRQs enabled by default */
s->fifos[0].extregs[ASC_EXTREGS_INTCTRL] = 1;
s->fifos[1].extregs[ASC_EXTREGS_INTCTRL] = 1;
}
}
static void asc_unrealize(DeviceState *dev)
{
ASCState *s = ASC(dev);
g_free(s->mixbuf);
g_free(s->silentbuf);
AUD_remove_card(&s->card);
}
static void asc_realize(DeviceState *dev, Error **errp)
{
ASCState *s = ASC(dev);
struct audsettings as;
if (!AUD_register_card("Apple Sound Chip", &s->card, errp)) {
return;
}
as.freq = ASC_FREQ;
as.nchannels = 2;
as.fmt = AUDIO_FORMAT_U8;
as.endianness = AUDIO_HOST_ENDIANNESS;
s->voice = AUD_open_out(&s->card, s->voice, "asc.out", s, asc_out_cb,
&as);
if (!s->voice) {
AUD_remove_card(&s->card);
error_setg(errp, "Initializing audio stream failed");
return;
}
s->shift = 1;
s->samples = AUD_get_buffer_size_out(s->voice) >> s->shift;
s->mixbuf = g_malloc0(s->samples << s->shift);
s->silentbuf = g_malloc0(s->samples << s->shift);
memset(s->silentbuf, 0x80, s->samples << s->shift);
/* Add easc registers if required */
if (s->type == ASC_TYPE_EASC) {
memory_region_add_subregion(&s->asc, ASC_EXTREG_OFFSET,
&s->fifos[0].mem_extregs);
memory_region_add_subregion(&s->asc,
ASC_EXTREG_OFFSET + ASC_EXTREG_SIZE,
&s->fifos[1].mem_extregs);
}
}
static void asc_init(Object *obj)
{
ASCState *s = ASC(obj);
SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
memory_region_init(&s->asc, OBJECT(obj), "asc", ASC_SIZE);
asc_fifo_init(&s->fifos[0], 0);
asc_fifo_init(&s->fifos[1], 1);
memory_region_add_subregion(&s->asc, ASC_FIFO_OFFSET,
&s->fifos[0].mem_fifo);
memory_region_add_subregion(&s->asc,
ASC_FIFO_OFFSET + ASC_FIFO_SIZE,
&s->fifos[1].mem_fifo);
memory_region_init_io(&s->mem_regs, OBJECT(obj), &asc_regs_ops, s,
"asc.regs", ASC_REG_SIZE);
memory_region_add_subregion(&s->asc, ASC_REG_OFFSET, &s->mem_regs);
sysbus_init_irq(sbd, &s->irq);
sysbus_init_mmio(sbd, &s->asc);
}
static const Property asc_properties[] = {
DEFINE_AUDIO_PROPERTIES(ASCState, card),
DEFINE_PROP_UINT8("asctype", ASCState, type, ASC_TYPE_ASC),
};
static void asc_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
ResettableClass *rc = RESETTABLE_CLASS(oc);
dc->realize = asc_realize;
dc->unrealize = asc_unrealize;
set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
dc->vmsd = &vmstate_asc;
device_class_set_props(dc, asc_properties);
rc->phases.hold = asc_reset_hold;
}
static const TypeInfo asc_info_types[] = {
{
.name = TYPE_ASC,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(ASCState),
.instance_init = asc_init,
.class_init = asc_class_init,
},
};
DEFINE_TYPES(asc_info_types)
|