1 /* 2 * VT82C686B south bridge support 3 * 4 * Copyright (c) 2008 yajin (yajin@vm-kernel.org) 5 * Copyright (c) 2009 chenming (chenming@rdc.faw.com.cn) 6 * Copyright (c) 2010 Huacai Chen (zltjiangshi@gmail.com) 7 * This code is licensed under the GNU GPL v2. 8 * 9 * Contributions after 2012-01-13 are licensed under the terms of the 10 * GNU GPL, version 2 or (at your option) any later version. 11 * 12 * VT8231 south bridge support and general clean up to allow it 13 * Copyright (c) 2018-2020 BALATON Zoltan 14 */ 15 16 #include "qemu/osdep.h" 17 #include "hw/isa/vt82c686.h" 18 #include "hw/block/fdc.h" 19 #include "hw/char/parallel-isa.h" 20 #include "hw/char/serial.h" 21 #include "hw/pci/pci.h" 22 #include "hw/qdev-properties.h" 23 #include "hw/ide/pci.h" 24 #include "hw/isa/isa.h" 25 #include "hw/isa/superio.h" 26 #include "hw/intc/i8259.h" 27 #include "hw/irq.h" 28 #include "hw/dma/i8257.h" 29 #include "hw/usb/hcd-uhci.h" 30 #include "hw/timer/i8254.h" 31 #include "hw/rtc/mc146818rtc.h" 32 #include "migration/vmstate.h" 33 #include "hw/isa/apm.h" 34 #include "hw/acpi/acpi.h" 35 #include "hw/i2c/pm_smbus.h" 36 #include "qapi/error.h" 37 #include "qemu/log.h" 38 #include "qemu/module.h" 39 #include "qemu/range.h" 40 #include "qemu/timer.h" 41 #include "trace.h" 42 43 #define TYPE_VIA_PM "via-pm" 44 OBJECT_DECLARE_SIMPLE_TYPE(ViaPMState, VIA_PM) 45 46 struct ViaPMState { 47 PCIDevice dev; 48 MemoryRegion io; 49 ACPIREGS ar; 50 APMState apm; 51 PMSMBus smb; 52 }; 53 54 static void pm_io_space_update(ViaPMState *s) 55 { 56 uint32_t pmbase = pci_get_long(s->dev.config + 0x48) & 0xff80UL; 57 58 memory_region_transaction_begin(); 59 memory_region_set_address(&s->io, pmbase); 60 memory_region_set_enabled(&s->io, s->dev.config[0x41] & BIT(7)); 61 memory_region_transaction_commit(); 62 } 63 64 static void smb_io_space_update(ViaPMState *s) 65 { 66 uint32_t smbase = pci_get_long(s->dev.config + 0x90) & 0xfff0UL; 67 68 memory_region_transaction_begin(); 69 memory_region_set_address(&s->smb.io, smbase); 70 memory_region_set_enabled(&s->smb.io, s->dev.config[0xd2] & BIT(0)); 71 memory_region_transaction_commit(); 72 } 73 74 static int vmstate_acpi_post_load(void *opaque, int version_id) 75 { 76 ViaPMState *s = opaque; 77 78 pm_io_space_update(s); 79 smb_io_space_update(s); 80 return 0; 81 } 82 83 static const VMStateDescription vmstate_acpi = { 84 .name = "vt82c686b_pm", 85 .version_id = 1, 86 .minimum_version_id = 1, 87 .post_load = vmstate_acpi_post_load, 88 .fields = (const VMStateField[]) { 89 VMSTATE_PCI_DEVICE(dev, ViaPMState), 90 VMSTATE_UINT16(ar.pm1.evt.sts, ViaPMState), 91 VMSTATE_UINT16(ar.pm1.evt.en, ViaPMState), 92 VMSTATE_UINT16(ar.pm1.cnt.cnt, ViaPMState), 93 VMSTATE_STRUCT(apm, ViaPMState, 0, vmstate_apm, APMState), 94 VMSTATE_TIMER_PTR(ar.tmr.timer, ViaPMState), 95 VMSTATE_INT64(ar.tmr.overflow_time, ViaPMState), 96 VMSTATE_END_OF_LIST() 97 } 98 }; 99 100 static void pm_write_config(PCIDevice *d, uint32_t addr, uint32_t val, int len) 101 { 102 ViaPMState *s = VIA_PM(d); 103 104 trace_via_pm_write(addr, val, len); 105 pci_default_write_config(d, addr, val, len); 106 if (ranges_overlap(addr, len, 0x48, 4)) { 107 uint32_t v = pci_get_long(s->dev.config + 0x48); 108 pci_set_long(s->dev.config + 0x48, (v & 0xff80UL) | 1); 109 } 110 if (range_covers_byte(addr, len, 0x41)) { 111 pm_io_space_update(s); 112 } 113 if (ranges_overlap(addr, len, 0x90, 4)) { 114 uint32_t v = pci_get_long(s->dev.config + 0x90); 115 pci_set_long(s->dev.config + 0x90, (v & 0xfff0UL) | 1); 116 } 117 if (range_covers_byte(addr, len, 0xd2)) { 118 s->dev.config[0xd2] &= 0xf; 119 smb_io_space_update(s); 120 } 121 } 122 123 static void pm_io_write(void *op, hwaddr addr, uint64_t data, unsigned size) 124 { 125 trace_via_pm_io_write(addr, data, size); 126 } 127 128 static uint64_t pm_io_read(void *op, hwaddr addr, unsigned size) 129 { 130 trace_via_pm_io_read(addr, 0, size); 131 return 0; 132 } 133 134 static const MemoryRegionOps pm_io_ops = { 135 .read = pm_io_read, 136 .write = pm_io_write, 137 .endianness = DEVICE_NATIVE_ENDIAN, 138 .impl = { 139 .min_access_size = 1, 140 .max_access_size = 1, 141 }, 142 }; 143 144 static void pm_update_sci(ViaPMState *s) 145 { 146 int sci_level, pmsts; 147 148 pmsts = acpi_pm1_evt_get_sts(&s->ar); 149 sci_level = (((pmsts & s->ar.pm1.evt.en) & 150 (ACPI_BITMASK_RT_CLOCK_ENABLE | 151 ACPI_BITMASK_POWER_BUTTON_ENABLE | 152 ACPI_BITMASK_GLOBAL_LOCK_ENABLE | 153 ACPI_BITMASK_TIMER_ENABLE)) != 0); 154 if (pci_get_byte(s->dev.config + PCI_INTERRUPT_PIN)) { 155 /* 156 * FIXME: 157 * Fix device model that realizes this PM device and remove 158 * this work around. 159 * The device model should wire SCI and setup 160 * PCI_INTERRUPT_PIN properly. 161 * If PIN# = 0(interrupt pin isn't used), don't raise SCI as 162 * work around. 163 */ 164 pci_set_irq(&s->dev, sci_level); 165 } 166 /* schedule a timer interruption if needed */ 167 acpi_pm_tmr_update(&s->ar, (s->ar.pm1.evt.en & ACPI_BITMASK_TIMER_ENABLE) && 168 !(pmsts & ACPI_BITMASK_TIMER_STATUS)); 169 } 170 171 static void pm_tmr_timer(ACPIREGS *ar) 172 { 173 ViaPMState *s = container_of(ar, ViaPMState, ar); 174 pm_update_sci(s); 175 } 176 177 static void via_pm_reset(DeviceState *d) 178 { 179 ViaPMState *s = VIA_PM(d); 180 181 memset(s->dev.config + PCI_CONFIG_HEADER_SIZE, 0, 182 PCI_CONFIG_SPACE_SIZE - PCI_CONFIG_HEADER_SIZE); 183 /* Power Management IO base */ 184 pci_set_long(s->dev.config + 0x48, 1); 185 /* SMBus IO base */ 186 pci_set_long(s->dev.config + 0x90, 1); 187 188 acpi_pm1_evt_reset(&s->ar); 189 acpi_pm1_cnt_reset(&s->ar); 190 acpi_pm_tmr_reset(&s->ar); 191 pm_update_sci(s); 192 193 pm_io_space_update(s); 194 smb_io_space_update(s); 195 } 196 197 static void via_pm_realize(PCIDevice *dev, Error **errp) 198 { 199 ViaPMState *s = VIA_PM(dev); 200 201 pci_set_word(dev->config + PCI_STATUS, PCI_STATUS_FAST_BACK | 202 PCI_STATUS_DEVSEL_MEDIUM); 203 204 pm_smbus_init(DEVICE(s), &s->smb, false); 205 memory_region_add_subregion(pci_address_space_io(dev), 0, &s->smb.io); 206 memory_region_set_enabled(&s->smb.io, false); 207 208 apm_init(dev, &s->apm, NULL, s); 209 210 memory_region_init_io(&s->io, OBJECT(dev), &pm_io_ops, s, "via-pm", 128); 211 memory_region_add_subregion(pci_address_space_io(dev), 0, &s->io); 212 memory_region_set_enabled(&s->io, false); 213 214 acpi_pm_tmr_init(&s->ar, pm_tmr_timer, &s->io); 215 acpi_pm1_evt_init(&s->ar, pm_tmr_timer, &s->io); 216 acpi_pm1_cnt_init(&s->ar, &s->io, false, false, 2, false); 217 } 218 219 typedef struct via_pm_init_info { 220 uint16_t device_id; 221 } ViaPMInitInfo; 222 223 static void via_pm_class_init(ObjectClass *klass, void *data) 224 { 225 DeviceClass *dc = DEVICE_CLASS(klass); 226 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 227 ViaPMInitInfo *info = data; 228 229 k->realize = via_pm_realize; 230 k->config_write = pm_write_config; 231 k->vendor_id = PCI_VENDOR_ID_VIA; 232 k->device_id = info->device_id; 233 k->class_id = PCI_CLASS_BRIDGE_OTHER; 234 k->revision = 0x40; 235 dc->reset = via_pm_reset; 236 /* Reason: part of VIA south bridge, does not exist stand alone */ 237 dc->user_creatable = false; 238 dc->vmsd = &vmstate_acpi; 239 } 240 241 static const TypeInfo via_pm_info = { 242 .name = TYPE_VIA_PM, 243 .parent = TYPE_PCI_DEVICE, 244 .instance_size = sizeof(ViaPMState), 245 .abstract = true, 246 .interfaces = (InterfaceInfo[]) { 247 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 248 { }, 249 }, 250 }; 251 252 static const ViaPMInitInfo vt82c686b_pm_init_info = { 253 .device_id = PCI_DEVICE_ID_VIA_82C686B_PM, 254 }; 255 256 #define TYPE_VT82C686B_PM "vt82c686b-pm" 257 258 static const TypeInfo vt82c686b_pm_info = { 259 .name = TYPE_VT82C686B_PM, 260 .parent = TYPE_VIA_PM, 261 .class_init = via_pm_class_init, 262 .class_data = (void *)&vt82c686b_pm_init_info, 263 }; 264 265 static const ViaPMInitInfo vt8231_pm_init_info = { 266 .device_id = PCI_DEVICE_ID_VIA_8231_PM, 267 }; 268 269 #define TYPE_VT8231_PM "vt8231-pm" 270 271 static const TypeInfo vt8231_pm_info = { 272 .name = TYPE_VT8231_PM, 273 .parent = TYPE_VIA_PM, 274 .class_init = via_pm_class_init, 275 .class_data = (void *)&vt8231_pm_init_info, 276 }; 277 278 279 #define TYPE_VIA_SUPERIO "via-superio" 280 OBJECT_DECLARE_SIMPLE_TYPE(ViaSuperIOState, VIA_SUPERIO) 281 282 struct ViaSuperIOState { 283 ISASuperIODevice superio; 284 uint8_t regs[0x100]; 285 const MemoryRegionOps *io_ops; 286 MemoryRegion io; 287 }; 288 289 static inline void via_superio_io_enable(ViaSuperIOState *s, bool enable) 290 { 291 memory_region_set_enabled(&s->io, enable); 292 } 293 294 static void via_superio_realize(DeviceState *d, Error **errp) 295 { 296 ViaSuperIOState *s = VIA_SUPERIO(d); 297 ISASuperIOClass *ic = ISA_SUPERIO_GET_CLASS(s); 298 Error *local_err = NULL; 299 300 assert(s->io_ops); 301 ic->parent_realize(d, &local_err); 302 if (local_err) { 303 error_propagate(errp, local_err); 304 return; 305 } 306 memory_region_init_io(&s->io, OBJECT(d), s->io_ops, s, "via-superio", 2); 307 memory_region_set_enabled(&s->io, false); 308 /* The floppy also uses 0x3f0 and 0x3f1 but this seems to work anyway */ 309 memory_region_add_subregion(isa_address_space_io(ISA_DEVICE(s)), 0x3f0, 310 &s->io); 311 } 312 313 static uint64_t via_superio_cfg_read(void *opaque, hwaddr addr, unsigned size) 314 { 315 ViaSuperIOState *sc = opaque; 316 uint8_t idx = sc->regs[0]; 317 uint8_t val = sc->regs[idx]; 318 319 if (addr == 0) { 320 return idx; 321 } 322 if (addr == 1 && idx == 0) { 323 val = 0; /* reading reg 0 where we store index value */ 324 } 325 trace_via_superio_read(idx, val); 326 return val; 327 } 328 329 static void via_superio_devices_enable(ViaSuperIOState *s, uint8_t data) 330 { 331 ISASuperIOClass *ic = ISA_SUPERIO_GET_CLASS(s); 332 333 isa_parallel_set_enabled(s->superio.parallel[0], (data & 0x3) != 3); 334 for (int i = 0; i < ic->serial.count; i++) { 335 isa_serial_set_enabled(s->superio.serial[i], data & BIT(i + 2)); 336 } 337 isa_fdc_set_enabled(s->superio.floppy, data & BIT(4)); 338 } 339 340 static void via_superio_class_init(ObjectClass *klass, void *data) 341 { 342 DeviceClass *dc = DEVICE_CLASS(klass); 343 ISASuperIOClass *sc = ISA_SUPERIO_CLASS(klass); 344 345 device_class_set_parent_realize(dc, via_superio_realize, 346 &sc->parent_realize); 347 } 348 349 static const TypeInfo via_superio_info = { 350 .name = TYPE_VIA_SUPERIO, 351 .parent = TYPE_ISA_SUPERIO, 352 .instance_size = sizeof(ViaSuperIOState), 353 .class_size = sizeof(ISASuperIOClass), 354 .class_init = via_superio_class_init, 355 .abstract = true, 356 }; 357 358 #define TYPE_VT82C686B_SUPERIO "vt82c686b-superio" 359 360 static void vt82c686b_superio_cfg_write(void *opaque, hwaddr addr, 361 uint64_t data, unsigned size) 362 { 363 ViaSuperIOState *sc = opaque; 364 uint8_t idx = sc->regs[0]; 365 366 if (addr == 0) { /* config index register */ 367 sc->regs[0] = data; 368 return; 369 } 370 371 /* config data register */ 372 trace_via_superio_write(idx, data); 373 switch (idx) { 374 case 0x00 ... 0xdf: 375 case 0xe4: 376 case 0xe5: 377 case 0xe9 ... 0xed: 378 case 0xf3: 379 case 0xf5: 380 case 0xf7: 381 case 0xf9 ... 0xfb: 382 case 0xfd ... 0xff: 383 /* ignore write to read only registers */ 384 return; 385 case 0xe2: 386 data &= 0x1f; 387 via_superio_devices_enable(sc, data); 388 break; 389 case 0xe3: 390 data &= 0xfc; 391 isa_fdc_set_iobase(sc->superio.floppy, data << 2); 392 break; 393 case 0xe6: 394 isa_parallel_set_iobase(sc->superio.parallel[0], data << 2); 395 break; 396 case 0xe7: 397 data &= 0xfe; 398 isa_serial_set_iobase(sc->superio.serial[0], data << 2); 399 break; 400 case 0xe8: 401 data &= 0xfe; 402 isa_serial_set_iobase(sc->superio.serial[1], data << 2); 403 break; 404 default: 405 qemu_log_mask(LOG_UNIMP, 406 "via_superio_cfg: unimplemented register 0x%x\n", idx); 407 break; 408 } 409 sc->regs[idx] = data; 410 } 411 412 static const MemoryRegionOps vt82c686b_superio_cfg_ops = { 413 .read = via_superio_cfg_read, 414 .write = vt82c686b_superio_cfg_write, 415 .endianness = DEVICE_NATIVE_ENDIAN, 416 .impl = { 417 .min_access_size = 1, 418 .max_access_size = 1, 419 }, 420 }; 421 422 static void vt82c686b_superio_reset(DeviceState *dev) 423 { 424 ViaSuperIOState *s = VIA_SUPERIO(dev); 425 426 memset(s->regs, 0, sizeof(s->regs)); 427 /* Device ID */ 428 vt82c686b_superio_cfg_write(s, 0, 0xe0, 1); 429 vt82c686b_superio_cfg_write(s, 1, 0x3c, 1); 430 /* 431 * Function select - only serial enabled 432 * Fuloong 2e's rescue-yl prints to the serial console w/o enabling it. This 433 * suggests that the serial ports are enabled by default, so override the 434 * datasheet. 435 */ 436 vt82c686b_superio_cfg_write(s, 0, 0xe2, 1); 437 vt82c686b_superio_cfg_write(s, 1, 0x0f, 1); 438 /* Floppy ctrl base addr 0x3f0-7 */ 439 vt82c686b_superio_cfg_write(s, 0, 0xe3, 1); 440 vt82c686b_superio_cfg_write(s, 1, 0xfc, 1); 441 /* Parallel port base addr 0x378-f */ 442 vt82c686b_superio_cfg_write(s, 0, 0xe6, 1); 443 vt82c686b_superio_cfg_write(s, 1, 0xde, 1); 444 /* Serial port 1 base addr 0x3f8-f */ 445 vt82c686b_superio_cfg_write(s, 0, 0xe7, 1); 446 vt82c686b_superio_cfg_write(s, 1, 0xfe, 1); 447 /* Serial port 2 base addr 0x2f8-f */ 448 vt82c686b_superio_cfg_write(s, 0, 0xe8, 1); 449 vt82c686b_superio_cfg_write(s, 1, 0xbe, 1); 450 451 vt82c686b_superio_cfg_write(s, 0, 0, 1); 452 } 453 454 static void vt82c686b_superio_init(Object *obj) 455 { 456 VIA_SUPERIO(obj)->io_ops = &vt82c686b_superio_cfg_ops; 457 } 458 459 static void vt82c686b_superio_class_init(ObjectClass *klass, void *data) 460 { 461 DeviceClass *dc = DEVICE_CLASS(klass); 462 ISASuperIOClass *sc = ISA_SUPERIO_CLASS(klass); 463 464 dc->reset = vt82c686b_superio_reset; 465 sc->serial.count = 2; 466 sc->parallel.count = 1; 467 sc->ide.count = 0; /* emulated by via-ide */ 468 sc->floppy.count = 1; 469 } 470 471 static const TypeInfo vt82c686b_superio_info = { 472 .name = TYPE_VT82C686B_SUPERIO, 473 .parent = TYPE_VIA_SUPERIO, 474 .instance_size = sizeof(ViaSuperIOState), 475 .instance_init = vt82c686b_superio_init, 476 .class_size = sizeof(ISASuperIOClass), 477 .class_init = vt82c686b_superio_class_init, 478 }; 479 480 481 #define TYPE_VT8231_SUPERIO "vt8231-superio" 482 483 static void vt8231_superio_cfg_write(void *opaque, hwaddr addr, 484 uint64_t data, unsigned size) 485 { 486 ViaSuperIOState *sc = opaque; 487 uint8_t idx = sc->regs[0]; 488 489 if (addr == 0) { /* config index register */ 490 sc->regs[0] = data; 491 return; 492 } 493 494 /* config data register */ 495 trace_via_superio_write(idx, data); 496 switch (idx) { 497 case 0x00 ... 0xdf: 498 case 0xe7 ... 0xef: 499 case 0xf0 ... 0xf1: 500 case 0xf5: 501 case 0xf8: 502 case 0xfd: 503 /* ignore write to read only registers */ 504 return; 505 case 0xf2: 506 data &= 0x17; 507 via_superio_devices_enable(sc, data); 508 break; 509 case 0xf4: 510 data &= 0xfe; 511 isa_serial_set_iobase(sc->superio.serial[0], data << 2); 512 break; 513 case 0xf6: 514 isa_parallel_set_iobase(sc->superio.parallel[0], data << 2); 515 break; 516 case 0xf7: 517 data &= 0xfc; 518 isa_fdc_set_iobase(sc->superio.floppy, data << 2); 519 break; 520 default: 521 qemu_log_mask(LOG_UNIMP, 522 "via_superio_cfg: unimplemented register 0x%x\n", idx); 523 break; 524 } 525 sc->regs[idx] = data; 526 } 527 528 static const MemoryRegionOps vt8231_superio_cfg_ops = { 529 .read = via_superio_cfg_read, 530 .write = vt8231_superio_cfg_write, 531 .endianness = DEVICE_NATIVE_ENDIAN, 532 .impl = { 533 .min_access_size = 1, 534 .max_access_size = 1, 535 }, 536 }; 537 538 static void vt8231_superio_reset(DeviceState *dev) 539 { 540 ViaSuperIOState *s = VIA_SUPERIO(dev); 541 542 memset(s->regs, 0, sizeof(s->regs)); 543 /* Device ID */ 544 s->regs[0xf0] = 0x3c; 545 /* Device revision */ 546 s->regs[0xf1] = 0x01; 547 /* Function select - all disabled */ 548 vt8231_superio_cfg_write(s, 0, 0xf2, 1); 549 vt8231_superio_cfg_write(s, 1, 0x03, 1); 550 /* Serial port base addr */ 551 vt8231_superio_cfg_write(s, 0, 0xf4, 1); 552 vt8231_superio_cfg_write(s, 1, 0xfe, 1); 553 /* Parallel port base addr */ 554 vt8231_superio_cfg_write(s, 0, 0xf6, 1); 555 vt8231_superio_cfg_write(s, 1, 0xde, 1); 556 /* Floppy ctrl base addr */ 557 vt8231_superio_cfg_write(s, 0, 0xf7, 1); 558 vt8231_superio_cfg_write(s, 1, 0xfc, 1); 559 560 vt8231_superio_cfg_write(s, 0, 0, 1); 561 } 562 563 static void vt8231_superio_init(Object *obj) 564 { 565 VIA_SUPERIO(obj)->io_ops = &vt8231_superio_cfg_ops; 566 } 567 568 static void vt8231_superio_class_init(ObjectClass *klass, void *data) 569 { 570 DeviceClass *dc = DEVICE_CLASS(klass); 571 ISASuperIOClass *sc = ISA_SUPERIO_CLASS(klass); 572 573 dc->reset = vt8231_superio_reset; 574 sc->serial.count = 1; 575 sc->parallel.count = 1; 576 sc->ide.count = 0; /* emulated by via-ide */ 577 sc->floppy.count = 1; 578 } 579 580 static const TypeInfo vt8231_superio_info = { 581 .name = TYPE_VT8231_SUPERIO, 582 .parent = TYPE_VIA_SUPERIO, 583 .instance_size = sizeof(ViaSuperIOState), 584 .instance_init = vt8231_superio_init, 585 .class_size = sizeof(ISASuperIOClass), 586 .class_init = vt8231_superio_class_init, 587 }; 588 589 590 #define TYPE_VIA_ISA "via-isa" 591 OBJECT_DECLARE_SIMPLE_TYPE(ViaISAState, VIA_ISA) 592 593 struct ViaISAState { 594 PCIDevice dev; 595 qemu_irq cpu_intr; 596 qemu_irq *isa_irqs_in; 597 uint16_t irq_state[ISA_NUM_IRQS]; 598 ViaSuperIOState via_sio; 599 MC146818RtcState rtc; 600 PCIIDEState ide; 601 UHCIState uhci[2]; 602 ViaPMState pm; 603 ViaAC97State ac97; 604 PCIDevice mc97; 605 }; 606 607 static const VMStateDescription vmstate_via = { 608 .name = "via-isa", 609 .version_id = 1, 610 .minimum_version_id = 1, 611 .fields = (const VMStateField[]) { 612 VMSTATE_PCI_DEVICE(dev, ViaISAState), 613 VMSTATE_END_OF_LIST() 614 } 615 }; 616 617 static void via_isa_init(Object *obj) 618 { 619 ViaISAState *s = VIA_ISA(obj); 620 621 object_initialize_child(obj, "rtc", &s->rtc, TYPE_MC146818_RTC); 622 object_initialize_child(obj, "ide", &s->ide, TYPE_VIA_IDE); 623 object_initialize_child(obj, "uhci1", &s->uhci[0], TYPE_VT82C686B_USB_UHCI); 624 object_initialize_child(obj, "uhci2", &s->uhci[1], TYPE_VT82C686B_USB_UHCI); 625 object_initialize_child(obj, "ac97", &s->ac97, TYPE_VIA_AC97); 626 object_initialize_child(obj, "mc97", &s->mc97, TYPE_VIA_MC97); 627 } 628 629 static const TypeInfo via_isa_info = { 630 .name = TYPE_VIA_ISA, 631 .parent = TYPE_PCI_DEVICE, 632 .instance_size = sizeof(ViaISAState), 633 .instance_init = via_isa_init, 634 .abstract = true, 635 .interfaces = (InterfaceInfo[]) { 636 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 637 { }, 638 }, 639 }; 640 641 static int via_isa_get_pci_irq(const ViaISAState *s, int pin) 642 { 643 switch (pin) { 644 case 0: 645 return s->dev.config[0x55] >> 4; 646 case 1: 647 return s->dev.config[0x56] & 0xf; 648 case 2: 649 return s->dev.config[0x56] >> 4; 650 case 3: 651 return s->dev.config[0x57] >> 4; 652 } 653 return 0; 654 } 655 656 void via_isa_set_irq(PCIDevice *d, int pin, int level) 657 { 658 ViaISAState *s = VIA_ISA(pci_get_function_0(d)); 659 uint8_t irq = d->config[PCI_INTERRUPT_LINE], max_irq = 15; 660 int f = PCI_FUNC(d->devfn); 661 uint16_t mask = BIT(f); 662 663 switch (f) { 664 case 0: /* PIRQ/PINT inputs */ 665 irq = via_isa_get_pci_irq(s, pin); 666 f = 8 + pin; /* Use function 8-11 for PCI interrupt inputs */ 667 break; 668 case 2: /* USB ports 0-1 */ 669 case 3: /* USB ports 2-3 */ 670 case 5: /* AC97 audio */ 671 max_irq = 14; 672 break; 673 } 674 675 /* Keep track of the state of all sources */ 676 if (level) { 677 s->irq_state[0] |= mask; 678 } else { 679 s->irq_state[0] &= ~mask; 680 } 681 if (irq == 0 || irq == 0xff) { 682 return; /* disabled */ 683 } 684 if (unlikely(irq > max_irq || irq == 2)) { 685 qemu_log_mask(LOG_GUEST_ERROR, "Invalid ISA IRQ routing %d for %d", 686 irq, f); 687 return; 688 } 689 /* Record source state at mapped IRQ */ 690 if (level) { 691 s->irq_state[irq] |= mask; 692 } else { 693 s->irq_state[irq] &= ~mask; 694 } 695 /* Make sure there are no stuck bits if mapping has changed */ 696 s->irq_state[irq] &= s->irq_state[0]; 697 /* ISA IRQ level is the OR of all sources routed to it */ 698 qemu_set_irq(s->isa_irqs_in[irq], !!s->irq_state[irq]); 699 } 700 701 static void via_isa_pirq(void *opaque, int pin, int level) 702 { 703 via_isa_set_irq(opaque, pin, level); 704 } 705 706 static void via_isa_request_i8259_irq(void *opaque, int irq, int level) 707 { 708 ViaISAState *s = opaque; 709 qemu_set_irq(s->cpu_intr, level); 710 } 711 712 static void via_isa_realize(PCIDevice *d, Error **errp) 713 { 714 ViaISAState *s = VIA_ISA(d); 715 DeviceState *dev = DEVICE(d); 716 PCIBus *pci_bus = pci_get_bus(d); 717 qemu_irq *isa_irq; 718 ISABus *isa_bus; 719 int i; 720 721 qdev_init_gpio_out(dev, &s->cpu_intr, 1); 722 qdev_init_gpio_in_named(dev, via_isa_pirq, "pirq", PCI_NUM_PINS); 723 isa_irq = qemu_allocate_irqs(via_isa_request_i8259_irq, s, 1); 724 isa_bus = isa_bus_new(dev, pci_address_space(d), pci_address_space_io(d), 725 errp); 726 727 if (!isa_bus) { 728 return; 729 } 730 731 s->isa_irqs_in = i8259_init(isa_bus, *isa_irq); 732 isa_bus_register_input_irqs(isa_bus, s->isa_irqs_in); 733 i8254_pit_init(isa_bus, 0x40, 0, NULL); 734 i8257_dma_init(OBJECT(d), isa_bus, 0); 735 736 /* RTC */ 737 qdev_prop_set_int32(DEVICE(&s->rtc), "base_year", 2000); 738 if (!qdev_realize(DEVICE(&s->rtc), BUS(isa_bus), errp)) { 739 return; 740 } 741 isa_connect_gpio_out(ISA_DEVICE(&s->rtc), 0, s->rtc.isairq); 742 743 for (i = 0; i < PCI_CONFIG_HEADER_SIZE; i++) { 744 if (i < PCI_COMMAND || i >= PCI_REVISION_ID) { 745 d->wmask[i] = 0; 746 } 747 } 748 749 /* Super I/O */ 750 if (!qdev_realize(DEVICE(&s->via_sio), BUS(isa_bus), errp)) { 751 return; 752 } 753 754 /* Function 1: IDE */ 755 qdev_prop_set_int32(DEVICE(&s->ide), "addr", d->devfn + 1); 756 if (!qdev_realize(DEVICE(&s->ide), BUS(pci_bus), errp)) { 757 return; 758 } 759 for (i = 0; i < 2; i++) { 760 qdev_connect_gpio_out_named(DEVICE(&s->ide), "isa-irq", i, 761 s->isa_irqs_in[14 + i]); 762 } 763 764 /* Functions 2-3: USB Ports */ 765 for (i = 0; i < ARRAY_SIZE(s->uhci); i++) { 766 qdev_prop_set_int32(DEVICE(&s->uhci[i]), "addr", d->devfn + 2 + i); 767 if (!qdev_realize(DEVICE(&s->uhci[i]), BUS(pci_bus), errp)) { 768 return; 769 } 770 } 771 772 /* Function 4: Power Management */ 773 qdev_prop_set_int32(DEVICE(&s->pm), "addr", d->devfn + 4); 774 if (!qdev_realize(DEVICE(&s->pm), BUS(pci_bus), errp)) { 775 return; 776 } 777 778 /* Function 5: AC97 Audio */ 779 qdev_prop_set_int32(DEVICE(&s->ac97), "addr", d->devfn + 5); 780 if (!qdev_realize(DEVICE(&s->ac97), BUS(pci_bus), errp)) { 781 return; 782 } 783 784 /* Function 6: MC97 Modem */ 785 qdev_prop_set_int32(DEVICE(&s->mc97), "addr", d->devfn + 6); 786 if (!qdev_realize(DEVICE(&s->mc97), BUS(pci_bus), errp)) { 787 return; 788 } 789 } 790 791 /* TYPE_VT82C686B_ISA */ 792 793 static void vt82c686b_write_config(PCIDevice *d, uint32_t addr, 794 uint32_t val, int len) 795 { 796 ViaISAState *s = VIA_ISA(d); 797 798 trace_via_isa_write(addr, val, len); 799 pci_default_write_config(d, addr, val, len); 800 if (addr == 0x85) { 801 /* BIT(1): enable or disable superio config io ports */ 802 via_superio_io_enable(&s->via_sio, val & BIT(1)); 803 } 804 } 805 806 static void vt82c686b_isa_reset(DeviceState *dev) 807 { 808 ViaISAState *s = VIA_ISA(dev); 809 uint8_t *pci_conf = s->dev.config; 810 811 pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0); 812 pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_IO | PCI_COMMAND_MEMORY | 813 PCI_COMMAND_MASTER | PCI_COMMAND_SPECIAL); 814 pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM); 815 816 pci_conf[0x48] = 0x01; /* Miscellaneous Control 3 */ 817 pci_conf[0x4a] = 0x04; /* IDE interrupt Routing */ 818 pci_conf[0x4f] = 0x03; /* DMA/Master Mem Access Control 3 */ 819 pci_conf[0x50] = 0x2d; /* PnP DMA Request Control */ 820 pci_conf[0x59] = 0x04; 821 pci_conf[0x5a] = 0x04; /* KBC/RTC Control*/ 822 pci_conf[0x5f] = 0x04; 823 pci_conf[0x77] = 0x10; /* GPIO Control 1/2/3/4 */ 824 } 825 826 static void vt82c686b_init(Object *obj) 827 { 828 ViaISAState *s = VIA_ISA(obj); 829 830 object_initialize_child(obj, "sio", &s->via_sio, TYPE_VT82C686B_SUPERIO); 831 object_initialize_child(obj, "pm", &s->pm, TYPE_VT82C686B_PM); 832 } 833 834 static void vt82c686b_class_init(ObjectClass *klass, void *data) 835 { 836 DeviceClass *dc = DEVICE_CLASS(klass); 837 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 838 839 k->realize = via_isa_realize; 840 k->config_write = vt82c686b_write_config; 841 k->vendor_id = PCI_VENDOR_ID_VIA; 842 k->device_id = PCI_DEVICE_ID_VIA_82C686B_ISA; 843 k->class_id = PCI_CLASS_BRIDGE_ISA; 844 k->revision = 0x40; 845 dc->reset = vt82c686b_isa_reset; 846 dc->desc = "ISA bridge"; 847 dc->vmsd = &vmstate_via; 848 /* Reason: part of VIA VT82C686 southbridge, needs to be wired up */ 849 dc->user_creatable = false; 850 } 851 852 static const TypeInfo vt82c686b_isa_info = { 853 .name = TYPE_VT82C686B_ISA, 854 .parent = TYPE_VIA_ISA, 855 .instance_size = sizeof(ViaISAState), 856 .instance_init = vt82c686b_init, 857 .class_init = vt82c686b_class_init, 858 }; 859 860 /* TYPE_VT8231_ISA */ 861 862 static void vt8231_write_config(PCIDevice *d, uint32_t addr, 863 uint32_t val, int len) 864 { 865 ViaISAState *s = VIA_ISA(d); 866 867 trace_via_isa_write(addr, val, len); 868 pci_default_write_config(d, addr, val, len); 869 if (addr == 0x50) { 870 /* BIT(2): enable or disable superio config io ports */ 871 via_superio_io_enable(&s->via_sio, val & BIT(2)); 872 } 873 } 874 875 static void vt8231_isa_reset(DeviceState *dev) 876 { 877 ViaISAState *s = VIA_ISA(dev); 878 uint8_t *pci_conf = s->dev.config; 879 880 pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0); 881 pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_IO | PCI_COMMAND_MEMORY | 882 PCI_COMMAND_MASTER | PCI_COMMAND_SPECIAL); 883 pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM); 884 885 pci_conf[0x4c] = 0x04; /* IDE interrupt Routing */ 886 pci_conf[0x58] = 0x40; /* Miscellaneous Control 0 */ 887 pci_conf[0x67] = 0x08; /* Fast IR Config */ 888 pci_conf[0x6b] = 0x01; /* Fast IR I/O Base */ 889 } 890 891 static void vt8231_init(Object *obj) 892 { 893 ViaISAState *s = VIA_ISA(obj); 894 895 object_initialize_child(obj, "sio", &s->via_sio, TYPE_VT8231_SUPERIO); 896 object_initialize_child(obj, "pm", &s->pm, TYPE_VT8231_PM); 897 } 898 899 static void vt8231_class_init(ObjectClass *klass, void *data) 900 { 901 DeviceClass *dc = DEVICE_CLASS(klass); 902 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 903 904 k->realize = via_isa_realize; 905 k->config_write = vt8231_write_config; 906 k->vendor_id = PCI_VENDOR_ID_VIA; 907 k->device_id = PCI_DEVICE_ID_VIA_8231_ISA; 908 k->class_id = PCI_CLASS_BRIDGE_ISA; 909 k->revision = 0x10; 910 dc->reset = vt8231_isa_reset; 911 dc->desc = "ISA bridge"; 912 dc->vmsd = &vmstate_via; 913 /* Reason: part of VIA VT8231 southbridge, needs to be wired up */ 914 dc->user_creatable = false; 915 } 916 917 static const TypeInfo vt8231_isa_info = { 918 .name = TYPE_VT8231_ISA, 919 .parent = TYPE_VIA_ISA, 920 .instance_size = sizeof(ViaISAState), 921 .instance_init = vt8231_init, 922 .class_init = vt8231_class_init, 923 }; 924 925 926 static void vt82c686b_register_types(void) 927 { 928 type_register_static(&via_pm_info); 929 type_register_static(&vt82c686b_pm_info); 930 type_register_static(&vt8231_pm_info); 931 type_register_static(&via_superio_info); 932 type_register_static(&vt82c686b_superio_info); 933 type_register_static(&vt8231_superio_info); 934 type_register_static(&via_isa_info); 935 type_register_static(&vt82c686b_isa_info); 936 type_register_static(&vt8231_isa_info); 937 } 938 939 type_init(vt82c686b_register_types) 940