1 /* 2 * QEMU PowerMac CUDA device support 3 * 4 * Copyright (c) 2004-2007 Fabrice Bellard 5 * Copyright (c) 2007 Jocelyn Mayer 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a copy 8 * of this software and associated documentation files (the "Software"), to deal 9 * in the Software without restriction, including without limitation the rights 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 * copies of the Software, and to permit persons to whom the Software is 12 * furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 * THE SOFTWARE. 24 */ 25 #include "qemu/osdep.h" 26 #include "hw/hw.h" 27 #include "hw/ppc/mac.h" 28 #include "hw/input/adb.h" 29 #include "hw/misc/mos6522.h" 30 #include "hw/misc/macio/cuda.h" 31 #include "qemu/timer.h" 32 #include "sysemu/sysemu.h" 33 #include "qemu/cutils.h" 34 #include "qemu/log.h" 35 36 /* debug CUDA packets */ 37 //#define DEBUG_CUDA_PACKET 38 39 /* debug CUDA packets */ 40 //#define DEBUG_CUDA_PACKET 41 42 #ifdef DEBUG_CUDA 43 #define CUDA_DPRINTF(fmt, ...) \ 44 do { printf("CUDA: " fmt , ## __VA_ARGS__); } while (0) 45 #else 46 #define CUDA_DPRINTF(fmt, ...) 47 #endif 48 49 /* Bits in B data register: all active low */ 50 #define TREQ 0x08 /* Transfer request (input) */ 51 #define TACK 0x10 /* Transfer acknowledge (output) */ 52 #define TIP 0x20 /* Transfer in progress (output) */ 53 54 /* commands (1st byte) */ 55 #define ADB_PACKET 0 56 #define CUDA_PACKET 1 57 #define ERROR_PACKET 2 58 #define TIMER_PACKET 3 59 #define POWER_PACKET 4 60 #define MACIIC_PACKET 5 61 #define PMU_PACKET 6 62 63 #define CUDA_TIMER_FREQ (4700000 / 6) 64 65 /* CUDA returns time_t's offset from Jan 1, 1904, not 1970 */ 66 #define RTC_OFFSET 2082844800 67 68 static void cuda_receive_packet_from_host(CUDAState *s, 69 const uint8_t *data, int len); 70 71 /* MacOS uses timer 1 for calibration on startup, so we use 72 * the timebase frequency and cuda_get_counter_value() with 73 * cuda_get_load_time() to steer MacOS to calculate calibrate its timers 74 * correctly for both TCG and KVM (see commit b981289c49 "PPC: Cuda: Use cuda 75 * timer to expose tbfreq to guest" for more information) */ 76 77 static uint64_t cuda_get_counter_value(MOS6522State *s, MOS6522Timer *ti) 78 { 79 MOS6522CUDAState *mcs = container_of(s, MOS6522CUDAState, parent_obj); 80 CUDAState *cs = mcs->cuda; 81 82 /* Reverse of the tb calculation algorithm that Mac OS X uses on bootup */ 83 uint64_t tb_diff = muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), 84 cs->tb_frequency, NANOSECONDS_PER_SECOND) - 85 ti->load_time; 86 87 return (tb_diff * 0xBF401675E5DULL) / (cs->tb_frequency << 24); 88 } 89 90 static uint64_t cuda_get_load_time(MOS6522State *s, MOS6522Timer *ti) 91 { 92 MOS6522CUDAState *mcs = container_of(s, MOS6522CUDAState, parent_obj); 93 CUDAState *cs = mcs->cuda; 94 95 uint64_t load_time = muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), 96 cs->tb_frequency, NANOSECONDS_PER_SECOND); 97 return load_time; 98 } 99 100 static void cuda_set_sr_int(void *opaque) 101 { 102 CUDAState *s = opaque; 103 MOS6522CUDAState *mcs = s->mos6522_cuda; 104 MOS6522State *ms = MOS6522(mcs); 105 MOS6522DeviceClass *mdc = MOS6522_DEVICE_GET_CLASS(ms); 106 107 mdc->set_sr_int(ms); 108 } 109 110 static void cuda_delay_set_sr_int(CUDAState *s) 111 { 112 MOS6522CUDAState *mcs = s->mos6522_cuda; 113 MOS6522State *ms = MOS6522(mcs); 114 MOS6522DeviceClass *mdc = MOS6522_DEVICE_GET_CLASS(ms); 115 int64_t expire; 116 117 if (ms->dirb == 0xff || s->sr_delay_ns == 0) { 118 /* Disabled or not in Mac OS, fire the IRQ directly */ 119 mdc->set_sr_int(ms); 120 return; 121 } 122 123 CUDA_DPRINTF("CUDA: %s:%d\n", __func__, __LINE__); 124 125 expire = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + s->sr_delay_ns; 126 timer_mod(s->sr_delay_timer, expire); 127 } 128 129 /* NOTE: TIP and TREQ are negated */ 130 static void cuda_update(CUDAState *s) 131 { 132 MOS6522CUDAState *mcs = s->mos6522_cuda; 133 MOS6522State *ms = MOS6522(mcs); 134 int packet_received, len; 135 136 packet_received = 0; 137 if (!(ms->b & TIP)) { 138 /* transfer requested from host */ 139 140 if (ms->acr & SR_OUT) { 141 /* data output */ 142 if ((ms->b & (TACK | TIP)) != (s->last_b & (TACK | TIP))) { 143 if (s->data_out_index < sizeof(s->data_out)) { 144 CUDA_DPRINTF("send: %02x\n", ms->sr); 145 s->data_out[s->data_out_index++] = ms->sr; 146 cuda_delay_set_sr_int(s); 147 } 148 } 149 } else { 150 if (s->data_in_index < s->data_in_size) { 151 /* data input */ 152 if ((ms->b & (TACK | TIP)) != (s->last_b & (TACK | TIP))) { 153 ms->sr = s->data_in[s->data_in_index++]; 154 CUDA_DPRINTF("recv: %02x\n", ms->sr); 155 /* indicate end of transfer */ 156 if (s->data_in_index >= s->data_in_size) { 157 ms->b = (ms->b | TREQ); 158 } 159 cuda_delay_set_sr_int(s); 160 } 161 } 162 } 163 } else { 164 /* no transfer requested: handle sync case */ 165 if ((s->last_b & TIP) && (ms->b & TACK) != (s->last_b & TACK)) { 166 /* update TREQ state each time TACK change state */ 167 if (ms->b & TACK) { 168 ms->b = (ms->b | TREQ); 169 } else { 170 ms->b = (ms->b & ~TREQ); 171 } 172 cuda_delay_set_sr_int(s); 173 } else { 174 if (!(s->last_b & TIP)) { 175 /* handle end of host to cuda transfer */ 176 packet_received = (s->data_out_index > 0); 177 /* always an IRQ at the end of transfer */ 178 cuda_delay_set_sr_int(s); 179 } 180 /* signal if there is data to read */ 181 if (s->data_in_index < s->data_in_size) { 182 ms->b = (ms->b & ~TREQ); 183 } 184 } 185 } 186 187 s->last_acr = ms->acr; 188 s->last_b = ms->b; 189 190 /* NOTE: cuda_receive_packet_from_host() can call cuda_update() 191 recursively */ 192 if (packet_received) { 193 len = s->data_out_index; 194 s->data_out_index = 0; 195 cuda_receive_packet_from_host(s, s->data_out, len); 196 } 197 } 198 199 static void cuda_send_packet_to_host(CUDAState *s, 200 const uint8_t *data, int len) 201 { 202 #ifdef DEBUG_CUDA_PACKET 203 { 204 int i; 205 printf("cuda_send_packet_to_host:\n"); 206 for(i = 0; i < len; i++) 207 printf(" %02x", data[i]); 208 printf("\n"); 209 } 210 #endif 211 memcpy(s->data_in, data, len); 212 s->data_in_size = len; 213 s->data_in_index = 0; 214 cuda_update(s); 215 cuda_delay_set_sr_int(s); 216 } 217 218 static void cuda_adb_poll(void *opaque) 219 { 220 CUDAState *s = opaque; 221 uint8_t obuf[ADB_MAX_OUT_LEN + 2]; 222 int olen; 223 224 olen = adb_poll(&s->adb_bus, obuf + 2, s->adb_poll_mask); 225 if (olen > 0) { 226 obuf[0] = ADB_PACKET; 227 obuf[1] = 0x40; /* polled data */ 228 cuda_send_packet_to_host(s, obuf, olen + 2); 229 } 230 timer_mod(s->adb_poll_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + 231 (NANOSECONDS_PER_SECOND / (1000 / s->autopoll_rate_ms))); 232 } 233 234 /* description of commands */ 235 typedef struct CudaCommand { 236 uint8_t command; 237 const char *name; 238 bool (*handler)(CUDAState *s, 239 const uint8_t *in_args, int in_len, 240 uint8_t *out_args, int *out_len); 241 } CudaCommand; 242 243 static bool cuda_cmd_autopoll(CUDAState *s, 244 const uint8_t *in_data, int in_len, 245 uint8_t *out_data, int *out_len) 246 { 247 int autopoll; 248 249 if (in_len != 1) { 250 return false; 251 } 252 253 autopoll = (in_data[0] != 0); 254 if (autopoll != s->autopoll) { 255 s->autopoll = autopoll; 256 if (autopoll) { 257 timer_mod(s->adb_poll_timer, 258 qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + 259 (NANOSECONDS_PER_SECOND / (1000 / s->autopoll_rate_ms))); 260 } else { 261 timer_del(s->adb_poll_timer); 262 } 263 } 264 return true; 265 } 266 267 static bool cuda_cmd_set_autorate(CUDAState *s, 268 const uint8_t *in_data, int in_len, 269 uint8_t *out_data, int *out_len) 270 { 271 if (in_len != 1) { 272 return false; 273 } 274 275 /* we don't want a period of 0 ms */ 276 /* FIXME: check what real hardware does */ 277 if (in_data[0] == 0) { 278 return false; 279 } 280 281 s->autopoll_rate_ms = in_data[0]; 282 if (s->autopoll) { 283 timer_mod(s->adb_poll_timer, 284 qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + 285 (NANOSECONDS_PER_SECOND / (1000 / s->autopoll_rate_ms))); 286 } 287 return true; 288 } 289 290 static bool cuda_cmd_set_device_list(CUDAState *s, 291 const uint8_t *in_data, int in_len, 292 uint8_t *out_data, int *out_len) 293 { 294 if (in_len != 2) { 295 return false; 296 } 297 298 s->adb_poll_mask = (((uint16_t)in_data[0]) << 8) | in_data[1]; 299 return true; 300 } 301 302 static bool cuda_cmd_powerdown(CUDAState *s, 303 const uint8_t *in_data, int in_len, 304 uint8_t *out_data, int *out_len) 305 { 306 if (in_len != 0) { 307 return false; 308 } 309 310 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); 311 return true; 312 } 313 314 static bool cuda_cmd_reset_system(CUDAState *s, 315 const uint8_t *in_data, int in_len, 316 uint8_t *out_data, int *out_len) 317 { 318 if (in_len != 0) { 319 return false; 320 } 321 322 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); 323 return true; 324 } 325 326 static bool cuda_cmd_set_file_server_flag(CUDAState *s, 327 const uint8_t *in_data, int in_len, 328 uint8_t *out_data, int *out_len) 329 { 330 if (in_len != 1) { 331 return false; 332 } 333 334 qemu_log_mask(LOG_UNIMP, 335 "CUDA: unimplemented command FILE_SERVER_FLAG %d\n", 336 in_data[0]); 337 return true; 338 } 339 340 static bool cuda_cmd_set_power_message(CUDAState *s, 341 const uint8_t *in_data, int in_len, 342 uint8_t *out_data, int *out_len) 343 { 344 if (in_len != 1) { 345 return false; 346 } 347 348 qemu_log_mask(LOG_UNIMP, 349 "CUDA: unimplemented command SET_POWER_MESSAGE %d\n", 350 in_data[0]); 351 return true; 352 } 353 354 static bool cuda_cmd_get_time(CUDAState *s, 355 const uint8_t *in_data, int in_len, 356 uint8_t *out_data, int *out_len) 357 { 358 uint32_t ti; 359 360 if (in_len != 0) { 361 return false; 362 } 363 364 ti = s->tick_offset + (qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) 365 / NANOSECONDS_PER_SECOND); 366 out_data[0] = ti >> 24; 367 out_data[1] = ti >> 16; 368 out_data[2] = ti >> 8; 369 out_data[3] = ti; 370 *out_len = 4; 371 return true; 372 } 373 374 static bool cuda_cmd_set_time(CUDAState *s, 375 const uint8_t *in_data, int in_len, 376 uint8_t *out_data, int *out_len) 377 { 378 uint32_t ti; 379 380 if (in_len != 4) { 381 return false; 382 } 383 384 ti = (((uint32_t)in_data[0]) << 24) + (((uint32_t)in_data[1]) << 16) 385 + (((uint32_t)in_data[2]) << 8) + in_data[3]; 386 s->tick_offset = ti - (qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) 387 / NANOSECONDS_PER_SECOND); 388 return true; 389 } 390 391 static const CudaCommand handlers[] = { 392 { CUDA_AUTOPOLL, "AUTOPOLL", cuda_cmd_autopoll }, 393 { CUDA_SET_AUTO_RATE, "SET_AUTO_RATE", cuda_cmd_set_autorate }, 394 { CUDA_SET_DEVICE_LIST, "SET_DEVICE_LIST", cuda_cmd_set_device_list }, 395 { CUDA_POWERDOWN, "POWERDOWN", cuda_cmd_powerdown }, 396 { CUDA_RESET_SYSTEM, "RESET_SYSTEM", cuda_cmd_reset_system }, 397 { CUDA_FILE_SERVER_FLAG, "FILE_SERVER_FLAG", 398 cuda_cmd_set_file_server_flag }, 399 { CUDA_SET_POWER_MESSAGES, "SET_POWER_MESSAGES", 400 cuda_cmd_set_power_message }, 401 { CUDA_GET_TIME, "GET_TIME", cuda_cmd_get_time }, 402 { CUDA_SET_TIME, "SET_TIME", cuda_cmd_set_time }, 403 }; 404 405 static void cuda_receive_packet(CUDAState *s, 406 const uint8_t *data, int len) 407 { 408 uint8_t obuf[16] = { CUDA_PACKET, 0, data[0] }; 409 int i, out_len = 0; 410 411 for (i = 0; i < ARRAY_SIZE(handlers); i++) { 412 const CudaCommand *desc = &handlers[i]; 413 if (desc->command == data[0]) { 414 CUDA_DPRINTF("handling command %s\n", desc->name); 415 out_len = 0; 416 if (desc->handler(s, data + 1, len - 1, obuf + 3, &out_len)) { 417 cuda_send_packet_to_host(s, obuf, 3 + out_len); 418 } else { 419 qemu_log_mask(LOG_GUEST_ERROR, 420 "CUDA: %s: wrong parameters %d\n", 421 desc->name, len); 422 obuf[0] = ERROR_PACKET; 423 obuf[1] = 0x5; /* bad parameters */ 424 obuf[2] = CUDA_PACKET; 425 obuf[3] = data[0]; 426 cuda_send_packet_to_host(s, obuf, 4); 427 } 428 return; 429 } 430 } 431 432 qemu_log_mask(LOG_GUEST_ERROR, "CUDA: unknown command 0x%02x\n", data[0]); 433 obuf[0] = ERROR_PACKET; 434 obuf[1] = 0x2; /* unknown command */ 435 obuf[2] = CUDA_PACKET; 436 obuf[3] = data[0]; 437 cuda_send_packet_to_host(s, obuf, 4); 438 } 439 440 static void cuda_receive_packet_from_host(CUDAState *s, 441 const uint8_t *data, int len) 442 { 443 #ifdef DEBUG_CUDA_PACKET 444 { 445 int i; 446 printf("cuda_receive_packet_from_host:\n"); 447 for(i = 0; i < len; i++) 448 printf(" %02x", data[i]); 449 printf("\n"); 450 } 451 #endif 452 switch(data[0]) { 453 case ADB_PACKET: 454 { 455 uint8_t obuf[ADB_MAX_OUT_LEN + 3]; 456 int olen; 457 olen = adb_request(&s->adb_bus, obuf + 2, data + 1, len - 1); 458 if (olen > 0) { 459 obuf[0] = ADB_PACKET; 460 obuf[1] = 0x00; 461 cuda_send_packet_to_host(s, obuf, olen + 2); 462 } else { 463 /* error */ 464 obuf[0] = ADB_PACKET; 465 obuf[1] = -olen; 466 obuf[2] = data[1]; 467 olen = 0; 468 cuda_send_packet_to_host(s, obuf, olen + 3); 469 } 470 } 471 break; 472 case CUDA_PACKET: 473 cuda_receive_packet(s, data + 1, len - 1); 474 break; 475 } 476 } 477 478 static uint64_t mos6522_cuda_read(void *opaque, hwaddr addr, unsigned size) 479 { 480 CUDAState *s = opaque; 481 MOS6522CUDAState *mcs = s->mos6522_cuda; 482 MOS6522State *ms = MOS6522(mcs); 483 484 addr = (addr >> 9) & 0xf; 485 return mos6522_read(ms, addr, size); 486 } 487 488 static void mos6522_cuda_write(void *opaque, hwaddr addr, uint64_t val, 489 unsigned size) 490 { 491 CUDAState *s = opaque; 492 MOS6522CUDAState *mcs = s->mos6522_cuda; 493 MOS6522State *ms = MOS6522(mcs); 494 495 addr = (addr >> 9) & 0xf; 496 mos6522_write(ms, addr, val, size); 497 } 498 499 static const MemoryRegionOps mos6522_cuda_ops = { 500 .read = mos6522_cuda_read, 501 .write = mos6522_cuda_write, 502 .endianness = DEVICE_BIG_ENDIAN, 503 .valid = { 504 .min_access_size = 1, 505 .max_access_size = 1, 506 }, 507 }; 508 509 static const VMStateDescription vmstate_cuda = { 510 .name = "cuda", 511 .version_id = 4, 512 .minimum_version_id = 4, 513 .fields = (VMStateField[]) { 514 VMSTATE_UINT8(last_b, CUDAState), 515 VMSTATE_UINT8(last_acr, CUDAState), 516 VMSTATE_INT32(data_in_size, CUDAState), 517 VMSTATE_INT32(data_in_index, CUDAState), 518 VMSTATE_INT32(data_out_index, CUDAState), 519 VMSTATE_UINT8(autopoll, CUDAState), 520 VMSTATE_UINT8(autopoll_rate_ms, CUDAState), 521 VMSTATE_UINT16(adb_poll_mask, CUDAState), 522 VMSTATE_BUFFER(data_in, CUDAState), 523 VMSTATE_BUFFER(data_out, CUDAState), 524 VMSTATE_UINT32(tick_offset, CUDAState), 525 VMSTATE_TIMER_PTR(adb_poll_timer, CUDAState), 526 VMSTATE_TIMER_PTR(sr_delay_timer, CUDAState), 527 VMSTATE_END_OF_LIST() 528 } 529 }; 530 531 static void cuda_reset(DeviceState *dev) 532 { 533 CUDAState *s = CUDA(dev); 534 535 s->data_in_size = 0; 536 s->data_in_index = 0; 537 s->data_out_index = 0; 538 s->autopoll = 0; 539 } 540 541 static void cuda_realize(DeviceState *dev, Error **errp) 542 { 543 CUDAState *s = CUDA(dev); 544 SysBusDevice *sbd; 545 MOS6522State *ms; 546 DeviceState *d; 547 struct tm tm; 548 549 d = qdev_create(NULL, TYPE_MOS6522_CUDA); 550 object_property_set_link(OBJECT(d), OBJECT(s), "cuda", errp); 551 qdev_init_nofail(d); 552 s->mos6522_cuda = MOS6522_CUDA(d); 553 554 /* Pass IRQ from 6522 */ 555 ms = MOS6522(d); 556 sbd = SYS_BUS_DEVICE(s); 557 sysbus_pass_irq(sbd, SYS_BUS_DEVICE(ms)); 558 559 qemu_get_timedate(&tm, 0); 560 s->tick_offset = (uint32_t)mktimegm(&tm) + RTC_OFFSET; 561 562 s->sr_delay_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, cuda_set_sr_int, s); 563 s->sr_delay_ns = 300 * SCALE_US; 564 565 s->adb_poll_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, cuda_adb_poll, s); 566 s->adb_poll_mask = 0xffff; 567 s->autopoll_rate_ms = 20; 568 } 569 570 static void cuda_init(Object *obj) 571 { 572 CUDAState *s = CUDA(obj); 573 SysBusDevice *sbd = SYS_BUS_DEVICE(obj); 574 575 memory_region_init_io(&s->mem, obj, &mos6522_cuda_ops, s, "cuda", 0x2000); 576 sysbus_init_mmio(sbd, &s->mem); 577 578 qbus_create_inplace(&s->adb_bus, sizeof(s->adb_bus), TYPE_ADB_BUS, 579 DEVICE(obj), "adb.0"); 580 } 581 582 static Property cuda_properties[] = { 583 DEFINE_PROP_UINT64("timebase-frequency", CUDAState, tb_frequency, 0), 584 DEFINE_PROP_END_OF_LIST() 585 }; 586 587 static void cuda_class_init(ObjectClass *oc, void *data) 588 { 589 DeviceClass *dc = DEVICE_CLASS(oc); 590 591 dc->realize = cuda_realize; 592 dc->reset = cuda_reset; 593 dc->vmsd = &vmstate_cuda; 594 dc->props = cuda_properties; 595 set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); 596 } 597 598 static const TypeInfo cuda_type_info = { 599 .name = TYPE_CUDA, 600 .parent = TYPE_SYS_BUS_DEVICE, 601 .instance_size = sizeof(CUDAState), 602 .instance_init = cuda_init, 603 .class_init = cuda_class_init, 604 }; 605 606 static void mos6522_cuda_portB_write(MOS6522State *s) 607 { 608 MOS6522CUDAState *mcs = container_of(s, MOS6522CUDAState, parent_obj); 609 610 cuda_update(mcs->cuda); 611 } 612 613 static void mos6522_cuda_realize(DeviceState *dev, Error **errp) 614 { 615 MOS6522State *ms = MOS6522(dev); 616 MOS6522DeviceClass *mdc = MOS6522_DEVICE_GET_CLASS(ms); 617 618 mdc->parent_realize(dev, errp); 619 620 ms->timers[0].frequency = CUDA_TIMER_FREQ; 621 ms->timers[1].frequency = (SCALE_US * 6000) / 4700; 622 } 623 624 static void mos6522_cuda_init(Object *obj) 625 { 626 MOS6522CUDAState *s = MOS6522_CUDA(obj); 627 628 object_property_add_link(obj, "cuda", TYPE_CUDA, 629 (Object **) &s->cuda, 630 qdev_prop_allow_set_link_before_realize, 631 0, NULL); 632 } 633 634 static void mos6522_cuda_class_init(ObjectClass *oc, void *data) 635 { 636 DeviceClass *dc = DEVICE_CLASS(oc); 637 MOS6522DeviceClass *mdc = MOS6522_DEVICE_CLASS(oc); 638 639 dc->realize = mos6522_cuda_realize; 640 mdc->portB_write = mos6522_cuda_portB_write; 641 mdc->get_timer1_counter_value = cuda_get_counter_value; 642 mdc->get_timer2_counter_value = cuda_get_counter_value; 643 mdc->get_timer1_load_time = cuda_get_load_time; 644 mdc->get_timer2_load_time = cuda_get_load_time; 645 } 646 647 static const TypeInfo mos6522_cuda_type_info = { 648 .name = TYPE_MOS6522_CUDA, 649 .parent = TYPE_MOS6522, 650 .instance_size = sizeof(MOS6522CUDAState), 651 .instance_init = mos6522_cuda_init, 652 .class_init = mos6522_cuda_class_init, 653 }; 654 655 static void cuda_register_types(void) 656 { 657 type_register_static(&mos6522_cuda_type_info); 658 type_register_static(&cuda_type_info); 659 } 660 661 type_init(cuda_register_types) 662