2 * VT82C686B south bridge support
7 * This code is licensed under the GNU GPL v2.
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.
26 #include "qemu-timer.h"
28 typedef uint32_t pci_addr_t;
30 //#define DEBUG_VT82C686B
32 #ifdef DEBUG_VT82C686B
33 #define DPRINTF(fmt, ...) fprintf(stderr, "%s: " fmt, __FUNCTION__, ##__VA_ARGS__)
35 #define DPRINTF(fmt, ...)
38 typedef struct SuperIOConfig
45 typedef struct VT82C686BState {
47 SuperIOConfig superio_conf;
50 static void superio_ioport_writeb(void *opaque, uint32_t addr, uint32_t data)
53 SuperIOConfig *superio_conf = opaque;
55 DPRINTF("superio_ioport_writeb address 0x%x val 0x%x\n", addr, data);
57 superio_conf->index = data & 0xff;
60 switch (superio_conf->index) {
76 switch (superio_conf->index) {
78 if ((data & 0xff) != 0xfe) {
79 DPRINTF("chage uart 1 base. unsupported yet\n");
83 if ((data & 0xff) != 0xbe) {
84 DPRINTF("chage uart 2 base. unsupported yet\n");
89 superio_conf->config[superio_conf->index] = data & 0xff;
93 superio_conf->config[superio_conf->index] = data & 0xff;
97 static uint32_t superio_ioport_readb(void *opaque, uint32_t addr)
99 SuperIOConfig *superio_conf = opaque;
101 DPRINTF("superio_ioport_readb address 0x%x\n", addr);
102 return (superio_conf->config[superio_conf->index]);
105 static void vt82c686b_reset(void * opaque)
107 PCIDevice *d = opaque;
108 uint8_t *pci_conf = d->config;
109 VT82C686BState *vt82c = DO_UPCAST(VT82C686BState, dev, d);
111 pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0);
112 pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
113 PCI_COMMAND_MASTER | PCI_COMMAND_SPECIAL);
114 pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM);
116 pci_conf[0x48] = 0x01; /* Miscellaneous Control 3 */
117 pci_conf[0x4a] = 0x04; /* IDE interrupt Routing */
118 pci_conf[0x4f] = 0x03; /* DMA/Master Mem Access Control 3 */
119 pci_conf[0x50] = 0x2d; /* PnP DMA Request Control */
120 pci_conf[0x59] = 0x04;
121 pci_conf[0x5a] = 0x04; /* KBC/RTC Control*/
122 pci_conf[0x5f] = 0x04;
123 pci_conf[0x77] = 0x10; /* GPIO Control 1/2/3/4 */
125 vt82c->superio_conf.config[0xe0] = 0x3c;
126 vt82c->superio_conf.config[0xe2] = 0x03;
127 vt82c->superio_conf.config[0xe3] = 0xfc;
128 vt82c->superio_conf.config[0xe6] = 0xde;
129 vt82c->superio_conf.config[0xe7] = 0xfe;
130 vt82c->superio_conf.config[0xe8] = 0xbe;
133 /* write config pci function0 registers. PCI-ISA bridge */
134 static void vt82c686b_write_config(PCIDevice * d, uint32_t address,
135 uint32_t val, int len)
137 VT82C686BState *vt686 = DO_UPCAST(VT82C686BState, dev, d);
139 DPRINTF("vt82c686b_write_config address 0x%x val 0x%x len 0x%x\n",
142 pci_default_write_config(d, address, val, len);
143 if (address == 0x85) { /* enable or disable super IO configure */
145 /* floppy also uses 0x3f0 and 0x3f1.
146 * But we do not emulate flopy,so just set it here. */
147 isa_unassign_ioport(0x3f0, 2);
148 register_ioport_read(0x3f0, 2, 1, superio_ioport_readb,
149 &vt686->superio_conf);
150 register_ioport_write(0x3f0, 2, 1, superio_ioport_writeb,
151 &vt686->superio_conf);
153 isa_unassign_ioport(0x3f0, 2);
158 #define ACPI_DBG_IO_ADDR 0xb044
160 typedef struct VT686PMState {
165 uint32_t smb_io_base;
168 typedef struct VT686AC97State {
172 typedef struct VT686MC97State {
176 static void pm_update_sci(VT686PMState *s)
178 int sci_level, pmsts;
180 pmsts = acpi_pm1_evt_get_sts(&s->ar);
181 sci_level = (((pmsts & s->ar.pm1.evt.en) &
182 (ACPI_BITMASK_RT_CLOCK_ENABLE |
183 ACPI_BITMASK_POWER_BUTTON_ENABLE |
184 ACPI_BITMASK_GLOBAL_LOCK_ENABLE |
185 ACPI_BITMASK_TIMER_ENABLE)) != 0);
186 qemu_set_irq(s->dev.irq[0], sci_level);
187 /* schedule a timer interruption if needed */
188 acpi_pm_tmr_update(&s->ar, (s->ar.pm1.evt.en & ACPI_BITMASK_TIMER_ENABLE) &&
189 !(pmsts & ACPI_BITMASK_TIMER_STATUS));
192 static void pm_tmr_timer(ACPIREGS *ar)
194 VT686PMState *s = container_of(ar, VT686PMState, ar);
198 static void pm_ioport_writew(void *opaque, uint32_t addr, uint32_t val)
200 VT686PMState *s = opaque;
205 acpi_pm1_evt_write_sts(&s->ar, val);
209 acpi_pm1_evt_write_en(&s->ar, val);
213 acpi_pm1_cnt_write(&s->ar, val, 0);
218 DPRINTF("PM writew port=0x%04x val=0x%02x\n", addr, val);
221 static uint32_t pm_ioport_readw(void *opaque, uint32_t addr)
223 VT686PMState *s = opaque;
229 val = acpi_pm1_evt_get_sts(&s->ar);
232 val = s->ar.pm1.evt.en;
235 val = s->ar.pm1.cnt.cnt;
241 DPRINTF("PM readw port=0x%04x val=0x%02x\n", addr, val);
245 static void pm_ioport_writel(void *opaque, uint32_t addr, uint32_t val)
248 DPRINTF("PM writel port=0x%04x val=0x%08x\n", addr, val);
251 static uint32_t pm_ioport_readl(void *opaque, uint32_t addr)
253 VT686PMState *s = opaque;
259 val = acpi_pm_tmr_get(&s->ar);
265 DPRINTF("PM readl port=0x%04x val=0x%08x\n", addr, val);
269 static void pm_io_space_update(VT686PMState *s)
273 if (s->dev.config[0x80] & 1) {
274 pm_io_base = pci_get_long(s->dev.config + 0x40);
275 pm_io_base &= 0xffc0;
277 /* XXX: need to improve memory and ioport allocation */
278 DPRINTF("PM: mapping to 0x%x\n", pm_io_base);
279 register_ioport_write(pm_io_base, 64, 2, pm_ioport_writew, s);
280 register_ioport_read(pm_io_base, 64, 2, pm_ioport_readw, s);
281 register_ioport_write(pm_io_base, 64, 4, pm_ioport_writel, s);
282 register_ioport_read(pm_io_base, 64, 4, pm_ioport_readl, s);
286 static void pm_write_config(PCIDevice *d,
287 uint32_t address, uint32_t val, int len)
289 DPRINTF("pm_write_config address 0x%x val 0x%x len 0x%x\n",
291 pci_default_write_config(d, address, val, len);
294 static int vmstate_acpi_post_load(void *opaque, int version_id)
296 VT686PMState *s = opaque;
298 pm_io_space_update(s);
302 static const VMStateDescription vmstate_acpi = {
303 .name = "vt82c686b_pm",
305 .minimum_version_id = 1,
306 .minimum_version_id_old = 1,
307 .post_load = vmstate_acpi_post_load,
308 .fields = (VMStateField []) {
309 VMSTATE_PCI_DEVICE(dev, VT686PMState),
310 VMSTATE_UINT16(ar.pm1.evt.sts, VT686PMState),
311 VMSTATE_UINT16(ar.pm1.evt.en, VT686PMState),
312 VMSTATE_UINT16(ar.pm1.cnt.cnt, VT686PMState),
313 VMSTATE_STRUCT(apm, VT686PMState, 0, vmstate_apm, APMState),
314 VMSTATE_TIMER(ar.tmr.timer, VT686PMState),
315 VMSTATE_INT64(ar.tmr.overflow_time, VT686PMState),
316 VMSTATE_END_OF_LIST()
321 * TODO: vt82c686b_ac97_init() and vt82c686b_mc97_init()
322 * just register a PCI device now, functionalities will be implemented later.
325 static int vt82c686b_ac97_initfn(PCIDevice *dev)
327 VT686AC97State *s = DO_UPCAST(VT686AC97State, dev, dev);
328 uint8_t *pci_conf = s->dev.config;
330 pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_INVALIDATE |
332 pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_CAP_LIST |
333 PCI_STATUS_DEVSEL_MEDIUM);
334 pci_set_long(pci_conf + PCI_INTERRUPT_PIN, 0x03);
339 void vt82c686b_ac97_init(PCIBus *bus, int devfn)
343 dev = pci_create(bus, devfn, "VT82C686B_AC97");
344 qdev_init_nofail(&dev->qdev);
347 static void via_ac97_class_init(ObjectClass *klass, void *data)
349 DeviceClass *dc = DEVICE_CLASS(klass);
350 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
352 k->init = vt82c686b_ac97_initfn;
353 k->vendor_id = PCI_VENDOR_ID_VIA;
354 k->device_id = PCI_DEVICE_ID_VIA_AC97;
356 k->class_id = PCI_CLASS_MULTIMEDIA_AUDIO;
360 static TypeInfo via_ac97_info = {
361 .name = "VT82C686B_AC97",
362 .parent = TYPE_PCI_DEVICE,
363 .instance_size = sizeof(VT686AC97State),
364 .class_init = via_ac97_class_init,
367 static int vt82c686b_mc97_initfn(PCIDevice *dev)
369 VT686MC97State *s = DO_UPCAST(VT686MC97State, dev, dev);
370 uint8_t *pci_conf = s->dev.config;
372 pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_INVALIDATE |
373 PCI_COMMAND_VGA_PALETTE);
374 pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM);
375 pci_set_long(pci_conf + PCI_INTERRUPT_PIN, 0x03);
380 void vt82c686b_mc97_init(PCIBus *bus, int devfn)
384 dev = pci_create(bus, devfn, "VT82C686B_MC97");
385 qdev_init_nofail(&dev->qdev);
388 static void via_mc97_class_init(ObjectClass *klass, void *data)
390 DeviceClass *dc = DEVICE_CLASS(klass);
391 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
393 k->init = vt82c686b_mc97_initfn;
394 k->vendor_id = PCI_VENDOR_ID_VIA;
395 k->device_id = PCI_DEVICE_ID_VIA_MC97;
396 k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
401 static TypeInfo via_mc97_info = {
402 .name = "VT82C686B_MC97",
403 .parent = TYPE_PCI_DEVICE,
404 .instance_size = sizeof(VT686MC97State),
405 .class_init = via_mc97_class_init,
408 /* vt82c686 pm init */
409 static int vt82c686b_pm_initfn(PCIDevice *dev)
411 VT686PMState *s = DO_UPCAST(VT686PMState, dev, dev);
414 pci_conf = s->dev.config;
415 pci_set_word(pci_conf + PCI_COMMAND, 0);
416 pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_FAST_BACK |
417 PCI_STATUS_DEVSEL_MEDIUM);
419 /* 0x48-0x4B is Power Management I/O Base */
420 pci_set_long(pci_conf + 0x48, 0x00000001);
422 /* SMB ports:0xeee0~0xeeef */
423 s->smb_io_base =((s->smb_io_base & 0xfff0) + 0x0);
424 pci_conf[0x90] = s->smb_io_base | 1;
425 pci_conf[0x91] = s->smb_io_base >> 8;
426 pci_conf[0xd2] = 0x90;
427 register_ioport_write(s->smb_io_base, 0xf, 1, smb_ioport_writeb, &s->smb);
428 register_ioport_read(s->smb_io_base, 0xf, 1, smb_ioport_readb, &s->smb);
430 apm_init(&s->apm, NULL, s);
432 acpi_pm_tmr_init(&s->ar, pm_tmr_timer);
433 acpi_pm1_cnt_init(&s->ar);
435 pm_smbus_init(&s->dev.qdev, &s->smb);
440 i2c_bus *vt82c686b_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base,
446 dev = pci_create(bus, devfn, "VT82C686B_PM");
447 qdev_prop_set_uint32(&dev->qdev, "smb_io_base", smb_io_base);
449 s = DO_UPCAST(VT686PMState, dev, dev);
451 qdev_init_nofail(&dev->qdev);
456 static Property via_pm_properties[] = {
457 DEFINE_PROP_UINT32("smb_io_base", VT686PMState, smb_io_base, 0),
458 DEFINE_PROP_END_OF_LIST(),
461 static void via_pm_class_init(ObjectClass *klass, void *data)
463 DeviceClass *dc = DEVICE_CLASS(klass);
464 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
466 k->init = vt82c686b_pm_initfn;
467 k->config_write = pm_write_config;
468 k->vendor_id = PCI_VENDOR_ID_VIA;
469 k->device_id = PCI_DEVICE_ID_VIA_ACPI;
470 k->class_id = PCI_CLASS_BRIDGE_OTHER;
473 dc->vmsd = &vmstate_acpi;
474 dc->props = via_pm_properties;
477 static TypeInfo via_pm_info = {
478 .name = "VT82C686B_PM",
479 .parent = TYPE_PCI_DEVICE,
480 .instance_size = sizeof(VT686PMState),
481 .class_init = via_pm_class_init,
484 static const VMStateDescription vmstate_via = {
487 .minimum_version_id = 1,
488 .minimum_version_id_old = 1,
489 .fields = (VMStateField []) {
490 VMSTATE_PCI_DEVICE(dev, VT82C686BState),
491 VMSTATE_END_OF_LIST()
495 /* init the PCI-to-ISA bridge */
496 static int vt82c686b_initfn(PCIDevice *d)
502 isa_bus_new(&d->qdev, pci_address_space_io(d));
504 pci_conf = d->config;
505 pci_config_set_prog_interface(pci_conf, 0x0);
508 for (i = 0x00; i < 0xff; i++) {
509 if (i<=0x03 || (i>=0x08 && i<=0x3f)) {
514 qemu_register_reset(vt82c686b_reset, d);
519 ISABus *vt82c686b_init(PCIBus *bus, int devfn)
523 d = pci_create_simple_multifunction(bus, devfn, true, "VT82C686B");
525 return DO_UPCAST(ISABus, qbus, qdev_get_child_bus(&d->qdev, "isa.0"));
528 static void via_class_init(ObjectClass *klass, void *data)
530 DeviceClass *dc = DEVICE_CLASS(klass);
531 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
533 k->init = vt82c686b_initfn;
534 k->config_write = vt82c686b_write_config;
535 k->vendor_id = PCI_VENDOR_ID_VIA;
536 k->device_id = PCI_DEVICE_ID_VIA_ISA_BRIDGE;
537 k->class_id = PCI_CLASS_BRIDGE_ISA;
539 dc->desc = "ISA bridge";
541 dc->vmsd = &vmstate_via;
544 static TypeInfo via_info = {
546 .parent = TYPE_PCI_DEVICE,
547 .instance_size = sizeof(VT82C686BState),
548 .class_init = via_class_init,
551 static void vt82c686b_register_types(void)
553 type_register_static(&via_ac97_info);
554 type_register_static(&via_mc97_info);
555 type_register_static(&via_pm_info);
556 type_register_static(&via_info);
559 type_init(vt82c686b_register_types)