| /* |
| * VT82C686B south bridge support |
| * |
| * Copyright (c) 2008 yajin (yajin@vm-kernel.org) |
| * Copyright (c) 2009 chenming (chenming@rdc.faw.com.cn) |
| * Copyright (c) 2010 Huacai Chen (zltjiangshi@gmail.com) |
| * This code is licensed under the GNU GPL v2. |
| * |
| * Contributions after 2012-01-13 are licensed under the terms of the |
| * GNU GPL, version 2 or (at your option) any later version. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "hw/isa/vt82c686.h" |
| #include "hw/i2c/i2c.h" |
| #include "hw/pci/pci.h" |
| #include "hw/qdev-properties.h" |
| #include "hw/isa/isa.h" |
| #include "hw/isa/superio.h" |
| #include "hw/sysbus.h" |
| #include "migration/vmstate.h" |
| #include "hw/mips/mips.h" |
| #include "hw/isa/apm.h" |
| #include "hw/acpi/acpi.h" |
| #include "hw/i2c/pm_smbus.h" |
| #include "sysemu/reset.h" |
| #include "qemu/module.h" |
| #include "qemu/timer.h" |
| #include "exec/address-spaces.h" |
| |
| //#define DEBUG_VT82C686B |
| |
| #ifdef DEBUG_VT82C686B |
| #define DPRINTF(fmt, ...) fprintf(stderr, "%s: " fmt, __func__, ##__VA_ARGS__) |
| #else |
| #define DPRINTF(fmt, ...) |
| #endif |
| |
| typedef struct SuperIOConfig |
| { |
| uint8_t config[0x100]; |
| uint8_t index; |
| uint8_t data; |
| } SuperIOConfig; |
| |
| typedef struct VT82C686BState { |
| PCIDevice dev; |
| MemoryRegion superio; |
| SuperIOConfig superio_conf; |
| } VT82C686BState; |
| |
| #define TYPE_VT82C686B_DEVICE "VT82C686B" |
| #define VT82C686B_DEVICE(obj) \ |
| OBJECT_CHECK(VT82C686BState, (obj), TYPE_VT82C686B_DEVICE) |
| |
| static void superio_ioport_writeb(void *opaque, hwaddr addr, uint64_t data, |
| unsigned size) |
| { |
| SuperIOConfig *superio_conf = opaque; |
| |
| DPRINTF("superio_ioport_writeb address 0x%x val 0x%x\n", addr, data); |
| if (addr == 0x3f0) { |
| superio_conf->index = data & 0xff; |
| } else { |
| bool can_write = true; |
| /* 0x3f1 */ |
| switch (superio_conf->index) { |
| case 0x00 ... 0xdf: |
| case 0xe4: |
| case 0xe5: |
| case 0xe9 ... 0xed: |
| case 0xf3: |
| case 0xf5: |
| case 0xf7: |
| case 0xf9 ... 0xfb: |
| case 0xfd ... 0xff: |
| can_write = false; |
| break; |
| case 0xe7: |
| if ((data & 0xff) != 0xfe) { |
| DPRINTF("change uart 1 base. unsupported yet\n"); |
| can_write = false; |
| } |
| break; |
| case 0xe8: |
| if ((data & 0xff) != 0xbe) { |
| DPRINTF("change uart 2 base. unsupported yet\n"); |
| can_write = false; |
| } |
| break; |
| default: |
| break; |
| |
| } |
| if (can_write) { |
| superio_conf->config[superio_conf->index] = data & 0xff; |
| } |
| } |
| } |
| |
| static uint64_t superio_ioport_readb(void *opaque, hwaddr addr, unsigned size) |
| { |
| SuperIOConfig *superio_conf = opaque; |
| |
| DPRINTF("superio_ioport_readb address 0x%x\n", addr); |
| return (superio_conf->config[superio_conf->index]); |
| } |
| |
| static const MemoryRegionOps superio_ops = { |
| .read = superio_ioport_readb, |
| .write = superio_ioport_writeb, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| .impl = { |
| .min_access_size = 1, |
| .max_access_size = 1, |
| }, |
| }; |
| |
| static void vt82c686b_reset(void * opaque) |
| { |
| PCIDevice *d = opaque; |
| uint8_t *pci_conf = d->config; |
| VT82C686BState *vt82c = VT82C686B_DEVICE(d); |
| |
| pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0); |
| pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_IO | PCI_COMMAND_MEMORY | |
| PCI_COMMAND_MASTER | PCI_COMMAND_SPECIAL); |
| pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM); |
| |
| pci_conf[0x48] = 0x01; /* Miscellaneous Control 3 */ |
| pci_conf[0x4a] = 0x04; /* IDE interrupt Routing */ |
| pci_conf[0x4f] = 0x03; /* DMA/Master Mem Access Control 3 */ |
| pci_conf[0x50] = 0x2d; /* PnP DMA Request Control */ |
| pci_conf[0x59] = 0x04; |
| pci_conf[0x5a] = 0x04; /* KBC/RTC Control*/ |
| pci_conf[0x5f] = 0x04; |
| pci_conf[0x77] = 0x10; /* GPIO Control 1/2/3/4 */ |
| |
| vt82c->superio_conf.config[0xe0] = 0x3c; |
| vt82c->superio_conf.config[0xe2] = 0x03; |
| vt82c->superio_conf.config[0xe3] = 0xfc; |
| vt82c->superio_conf.config[0xe6] = 0xde; |
| vt82c->superio_conf.config[0xe7] = 0xfe; |
| vt82c->superio_conf.config[0xe8] = 0xbe; |
| } |
| |
| /* write config pci function0 registers. PCI-ISA bridge */ |
| static void vt82c686b_write_config(PCIDevice * d, uint32_t address, |
| uint32_t val, int len) |
| { |
| VT82C686BState *vt686 = VT82C686B_DEVICE(d); |
| |
| DPRINTF("vt82c686b_write_config address 0x%x val 0x%x len 0x%x\n", |
| address, val, len); |
| |
| pci_default_write_config(d, address, val, len); |
| if (address == 0x85) { /* enable or disable super IO configure */ |
| memory_region_set_enabled(&vt686->superio, val & 0x2); |
| } |
| } |
| |
| #define ACPI_DBG_IO_ADDR 0xb044 |
| |
| typedef struct VT686PMState { |
| PCIDevice dev; |
| MemoryRegion io; |
| ACPIREGS ar; |
| APMState apm; |
| PMSMBus smb; |
| uint32_t smb_io_base; |
| } VT686PMState; |
| |
| typedef struct VT686AC97State { |
| PCIDevice dev; |
| } VT686AC97State; |
| |
| typedef struct VT686MC97State { |
| PCIDevice dev; |
| } VT686MC97State; |
| |
| #define TYPE_VT82C686B_PM_DEVICE "VT82C686B_PM" |
| #define VT82C686B_PM_DEVICE(obj) \ |
| OBJECT_CHECK(VT686PMState, (obj), TYPE_VT82C686B_PM_DEVICE) |
| |
| #define TYPE_VT82C686B_MC97_DEVICE "VT82C686B_MC97" |
| #define VT82C686B_MC97_DEVICE(obj) \ |
| OBJECT_CHECK(VT686MC97State, (obj), TYPE_VT82C686B_MC97_DEVICE) |
| |
| #define TYPE_VT82C686B_AC97_DEVICE "VT82C686B_AC97" |
| #define VT82C686B_AC97_DEVICE(obj) \ |
| OBJECT_CHECK(VT686AC97State, (obj), TYPE_VT82C686B_AC97_DEVICE) |
| |
| static void pm_update_sci(VT686PMState *s) |
| { |
| int sci_level, pmsts; |
| |
| pmsts = acpi_pm1_evt_get_sts(&s->ar); |
| sci_level = (((pmsts & s->ar.pm1.evt.en) & |
| (ACPI_BITMASK_RT_CLOCK_ENABLE | |
| ACPI_BITMASK_POWER_BUTTON_ENABLE | |
| ACPI_BITMASK_GLOBAL_LOCK_ENABLE | |
| ACPI_BITMASK_TIMER_ENABLE)) != 0); |
| pci_set_irq(&s->dev, sci_level); |
| /* schedule a timer interruption if needed */ |
| acpi_pm_tmr_update(&s->ar, (s->ar.pm1.evt.en & ACPI_BITMASK_TIMER_ENABLE) && |
| !(pmsts & ACPI_BITMASK_TIMER_STATUS)); |
| } |
| |
| static void pm_tmr_timer(ACPIREGS *ar) |
| { |
| VT686PMState *s = container_of(ar, VT686PMState, ar); |
| pm_update_sci(s); |
| } |
| |
| static void pm_io_space_update(VT686PMState *s) |
| { |
| uint32_t pm_io_base; |
| |
| pm_io_base = pci_get_long(s->dev.config + 0x40); |
| pm_io_base &= 0xffc0; |
| |
| memory_region_transaction_begin(); |
| memory_region_set_enabled(&s->io, s->dev.config[0x80] & 1); |
| memory_region_set_address(&s->io, pm_io_base); |
| memory_region_transaction_commit(); |
| } |
| |
| static void pm_write_config(PCIDevice *d, |
| uint32_t address, uint32_t val, int len) |
| { |
| DPRINTF("pm_write_config address 0x%x val 0x%x len 0x%x\n", |
| address, val, len); |
| pci_default_write_config(d, address, val, len); |
| } |
| |
| static int vmstate_acpi_post_load(void *opaque, int version_id) |
| { |
| VT686PMState *s = opaque; |
| |
| pm_io_space_update(s); |
| return 0; |
| } |
| |
| static const VMStateDescription vmstate_acpi = { |
| .name = "vt82c686b_pm", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .post_load = vmstate_acpi_post_load, |
| .fields = (VMStateField[]) { |
| VMSTATE_PCI_DEVICE(dev, VT686PMState), |
| VMSTATE_UINT16(ar.pm1.evt.sts, VT686PMState), |
| VMSTATE_UINT16(ar.pm1.evt.en, VT686PMState), |
| VMSTATE_UINT16(ar.pm1.cnt.cnt, VT686PMState), |
| VMSTATE_STRUCT(apm, VT686PMState, 0, vmstate_apm, APMState), |
| VMSTATE_TIMER_PTR(ar.tmr.timer, VT686PMState), |
| VMSTATE_INT64(ar.tmr.overflow_time, VT686PMState), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| /* |
| * TODO: vt82c686b_ac97_init() and vt82c686b_mc97_init() |
| * just register a PCI device now, functionalities will be implemented later. |
| */ |
| |
| static void vt82c686b_ac97_realize(PCIDevice *dev, Error **errp) |
| { |
| VT686AC97State *s = VT82C686B_AC97_DEVICE(dev); |
| uint8_t *pci_conf = s->dev.config; |
| |
| pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_INVALIDATE | |
| PCI_COMMAND_PARITY); |
| pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_CAP_LIST | |
| PCI_STATUS_DEVSEL_MEDIUM); |
| pci_set_long(pci_conf + PCI_INTERRUPT_PIN, 0x03); |
| } |
| |
| void vt82c686b_ac97_init(PCIBus *bus, int devfn) |
| { |
| PCIDevice *dev; |
| |
| dev = pci_create(bus, devfn, TYPE_VT82C686B_AC97_DEVICE); |
| qdev_init_nofail(&dev->qdev); |
| } |
| |
| static void via_ac97_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
| |
| k->realize = vt82c686b_ac97_realize; |
| k->vendor_id = PCI_VENDOR_ID_VIA; |
| k->device_id = PCI_DEVICE_ID_VIA_AC97; |
| k->revision = 0x50; |
| k->class_id = PCI_CLASS_MULTIMEDIA_AUDIO; |
| set_bit(DEVICE_CATEGORY_SOUND, dc->categories); |
| dc->desc = "AC97"; |
| } |
| |
| static const TypeInfo via_ac97_info = { |
| .name = TYPE_VT82C686B_AC97_DEVICE, |
| .parent = TYPE_PCI_DEVICE, |
| .instance_size = sizeof(VT686AC97State), |
| .class_init = via_ac97_class_init, |
| .interfaces = (InterfaceInfo[]) { |
| { INTERFACE_CONVENTIONAL_PCI_DEVICE }, |
| { }, |
| }, |
| }; |
| |
| static void vt82c686b_mc97_realize(PCIDevice *dev, Error **errp) |
| { |
| VT686MC97State *s = VT82C686B_MC97_DEVICE(dev); |
| uint8_t *pci_conf = s->dev.config; |
| |
| pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_INVALIDATE | |
| PCI_COMMAND_VGA_PALETTE); |
| pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM); |
| pci_set_long(pci_conf + PCI_INTERRUPT_PIN, 0x03); |
| } |
| |
| void vt82c686b_mc97_init(PCIBus *bus, int devfn) |
| { |
| PCIDevice *dev; |
| |
| dev = pci_create(bus, devfn, TYPE_VT82C686B_MC97_DEVICE); |
| qdev_init_nofail(&dev->qdev); |
| } |
| |
| static void via_mc97_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
| |
| k->realize = vt82c686b_mc97_realize; |
| k->vendor_id = PCI_VENDOR_ID_VIA; |
| k->device_id = PCI_DEVICE_ID_VIA_MC97; |
| k->class_id = PCI_CLASS_COMMUNICATION_OTHER; |
| k->revision = 0x30; |
| set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); |
| dc->desc = "MC97"; |
| } |
| |
| static const TypeInfo via_mc97_info = { |
| .name = TYPE_VT82C686B_MC97_DEVICE, |
| .parent = TYPE_PCI_DEVICE, |
| .instance_size = sizeof(VT686MC97State), |
| .class_init = via_mc97_class_init, |
| .interfaces = (InterfaceInfo[]) { |
| { INTERFACE_CONVENTIONAL_PCI_DEVICE }, |
| { }, |
| }, |
| }; |
| |
| /* vt82c686 pm init */ |
| static void vt82c686b_pm_realize(PCIDevice *dev, Error **errp) |
| { |
| VT686PMState *s = VT82C686B_PM_DEVICE(dev); |
| uint8_t *pci_conf; |
| |
| pci_conf = s->dev.config; |
| pci_set_word(pci_conf + PCI_COMMAND, 0); |
| pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_FAST_BACK | |
| PCI_STATUS_DEVSEL_MEDIUM); |
| |
| /* 0x48-0x4B is Power Management I/O Base */ |
| pci_set_long(pci_conf + 0x48, 0x00000001); |
| |
| /* SMB ports:0xeee0~0xeeef */ |
| s->smb_io_base =((s->smb_io_base & 0xfff0) + 0x0); |
| pci_conf[0x90] = s->smb_io_base | 1; |
| pci_conf[0x91] = s->smb_io_base >> 8; |
| pci_conf[0xd2] = 0x90; |
| pm_smbus_init(DEVICE(s), &s->smb, false); |
| memory_region_add_subregion(get_system_io(), s->smb_io_base, &s->smb.io); |
| |
| apm_init(dev, &s->apm, NULL, s); |
| |
| memory_region_init(&s->io, OBJECT(dev), "vt82c686-pm", 64); |
| memory_region_set_enabled(&s->io, false); |
| memory_region_add_subregion(get_system_io(), 0, &s->io); |
| |
| acpi_pm_tmr_init(&s->ar, pm_tmr_timer, &s->io); |
| acpi_pm1_evt_init(&s->ar, pm_tmr_timer, &s->io); |
| acpi_pm1_cnt_init(&s->ar, &s->io, false, false, 2); |
| } |
| |
| I2CBus *vt82c686b_pm_init(PCIBus *bus, int devfn, uint32_t smb_io_base, |
| qemu_irq sci_irq) |
| { |
| PCIDevice *dev; |
| VT686PMState *s; |
| |
| dev = pci_create(bus, devfn, TYPE_VT82C686B_PM_DEVICE); |
| qdev_prop_set_uint32(&dev->qdev, "smb_io_base", smb_io_base); |
| |
| s = VT82C686B_PM_DEVICE(dev); |
| |
| qdev_init_nofail(&dev->qdev); |
| |
| return s->smb.smbus; |
| } |
| |
| static Property via_pm_properties[] = { |
| DEFINE_PROP_UINT32("smb_io_base", VT686PMState, smb_io_base, 0), |
| DEFINE_PROP_END_OF_LIST(), |
| }; |
| |
| static void via_pm_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
| |
| k->realize = vt82c686b_pm_realize; |
| k->config_write = pm_write_config; |
| k->vendor_id = PCI_VENDOR_ID_VIA; |
| k->device_id = PCI_DEVICE_ID_VIA_ACPI; |
| k->class_id = PCI_CLASS_BRIDGE_OTHER; |
| k->revision = 0x40; |
| dc->desc = "PM"; |
| dc->vmsd = &vmstate_acpi; |
| set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); |
| dc->props = via_pm_properties; |
| } |
| |
| static const TypeInfo via_pm_info = { |
| .name = TYPE_VT82C686B_PM_DEVICE, |
| .parent = TYPE_PCI_DEVICE, |
| .instance_size = sizeof(VT686PMState), |
| .class_init = via_pm_class_init, |
| .interfaces = (InterfaceInfo[]) { |
| { INTERFACE_CONVENTIONAL_PCI_DEVICE }, |
| { }, |
| }, |
| }; |
| |
| static const VMStateDescription vmstate_via = { |
| .name = "vt82c686b", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .fields = (VMStateField[]) { |
| VMSTATE_PCI_DEVICE(dev, VT82C686BState), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| /* init the PCI-to-ISA bridge */ |
| static void vt82c686b_realize(PCIDevice *d, Error **errp) |
| { |
| VT82C686BState *vt82c = VT82C686B_DEVICE(d); |
| uint8_t *pci_conf; |
| ISABus *isa_bus; |
| uint8_t *wmask; |
| int i; |
| |
| isa_bus = isa_bus_new(DEVICE(d), get_system_memory(), |
| pci_address_space_io(d), errp); |
| if (!isa_bus) { |
| return; |
| } |
| |
| pci_conf = d->config; |
| pci_config_set_prog_interface(pci_conf, 0x0); |
| |
| wmask = d->wmask; |
| for (i = 0x00; i < 0xff; i++) { |
| if (i<=0x03 || (i>=0x08 && i<=0x3f)) { |
| wmask[i] = 0x00; |
| } |
| } |
| |
| memory_region_init_io(&vt82c->superio, OBJECT(d), &superio_ops, |
| &vt82c->superio_conf, "superio", 2); |
| memory_region_set_enabled(&vt82c->superio, false); |
| /* The floppy also uses 0x3f0 and 0x3f1. |
| * But we do not emulate a floppy, so just set it here. */ |
| memory_region_add_subregion(isa_bus->address_space_io, 0x3f0, |
| &vt82c->superio); |
| |
| qemu_register_reset(vt82c686b_reset, d); |
| } |
| |
| ISABus *vt82c686b_isa_init(PCIBus *bus, int devfn) |
| { |
| PCIDevice *d; |
| |
| d = pci_create_simple_multifunction(bus, devfn, true, |
| TYPE_VT82C686B_DEVICE); |
| |
| return ISA_BUS(qdev_get_child_bus(DEVICE(d), "isa.0")); |
| } |
| |
| static void via_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
| |
| k->realize = vt82c686b_realize; |
| k->config_write = vt82c686b_write_config; |
| k->vendor_id = PCI_VENDOR_ID_VIA; |
| k->device_id = PCI_DEVICE_ID_VIA_ISA_BRIDGE; |
| k->class_id = PCI_CLASS_BRIDGE_ISA; |
| k->revision = 0x40; |
| dc->desc = "ISA bridge"; |
| dc->vmsd = &vmstate_via; |
| /* |
| * Reason: part of VIA VT82C686 southbridge, needs to be wired up, |
| * e.g. by mips_fulong2e_init() |
| */ |
| dc->user_creatable = false; |
| } |
| |
| static const TypeInfo via_info = { |
| .name = TYPE_VT82C686B_DEVICE, |
| .parent = TYPE_PCI_DEVICE, |
| .instance_size = sizeof(VT82C686BState), |
| .class_init = via_class_init, |
| .interfaces = (InterfaceInfo[]) { |
| { INTERFACE_CONVENTIONAL_PCI_DEVICE }, |
| { }, |
| }, |
| }; |
| |
| static void vt82c686b_superio_class_init(ObjectClass *klass, void *data) |
| { |
| ISASuperIOClass *sc = ISA_SUPERIO_CLASS(klass); |
| |
| sc->serial.count = 2; |
| sc->parallel.count = 1; |
| sc->ide.count = 0; |
| sc->floppy.count = 1; |
| } |
| |
| static const TypeInfo via_superio_info = { |
| .name = TYPE_VT82C686B_SUPERIO, |
| .parent = TYPE_ISA_SUPERIO, |
| .instance_size = sizeof(ISASuperIODevice), |
| .class_size = sizeof(ISASuperIOClass), |
| .class_init = vt82c686b_superio_class_init, |
| }; |
| |
| static void vt82c686b_register_types(void) |
| { |
| type_register_static(&via_ac97_info); |
| type_register_static(&via_mc97_info); |
| type_register_static(&via_pm_info); |
| type_register_static(&via_superio_info); |
| type_register_static(&via_info); |
| } |
| |
| type_init(vt82c686b_register_types) |