| /* |
| * QEMU PCI VGA Emulator. |
| * |
| * Copyright (c) 2003 Fabrice Bellard |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| #include "hw.h" |
| #include "console.h" |
| #include "pc.h" |
| #include "pci.h" |
| #include "vga_int.h" |
| #include "pixel_ops.h" |
| #include "qemu-timer.h" |
| #include "loader.h" |
| |
| typedef struct PCIVGAState { |
| PCIDevice dev; |
| VGACommonState vga; |
| } PCIVGAState; |
| |
| static const VMStateDescription vmstate_vga_pci = { |
| .name = "vga", |
| .version_id = 2, |
| .minimum_version_id = 2, |
| .minimum_version_id_old = 2, |
| .fields = (VMStateField []) { |
| VMSTATE_PCI_DEVICE(dev, PCIVGAState), |
| VMSTATE_STRUCT(vga, PCIVGAState, 0, vmstate_vga_common, VGACommonState), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static void vga_map(PCIDevice *pci_dev, int region_num, |
| pcibus_t addr, pcibus_t size, int type) |
| { |
| PCIVGAState *d = (PCIVGAState *)pci_dev; |
| VGACommonState *s = &d->vga; |
| |
| cpu_register_physical_memory(addr, s->vram_size, s->vram_offset); |
| s->map_addr = addr; |
| s->map_end = addr + s->vram_size; |
| vga_dirty_log_start(s); |
| } |
| |
| static void pci_vga_write_config(PCIDevice *d, |
| uint32_t address, uint32_t val, int len) |
| { |
| PCIVGAState *pvs = container_of(d, PCIVGAState, dev); |
| VGACommonState *s = &pvs->vga; |
| |
| pci_default_write_config(d, address, val, len); |
| if (s->map_addr && pvs->dev.io_regions[0].addr == -1) |
| s->map_addr = 0; |
| } |
| |
| static int pci_vga_initfn(PCIDevice *dev) |
| { |
| PCIVGAState *d = DO_UPCAST(PCIVGAState, dev, dev); |
| VGACommonState *s = &d->vga; |
| |
| // vga + console init |
| vga_common_init(s, VGA_RAM_SIZE); |
| vga_init(s); |
| |
| s->ds = graphic_console_init(s->update, s->invalidate, |
| s->screen_dump, s->text_update, s); |
| |
| /* XXX: VGA_RAM_SIZE must be a power of two */ |
| pci_register_bar(&d->dev, 0, VGA_RAM_SIZE, |
| PCI_BASE_ADDRESS_MEM_PREFETCH, vga_map); |
| |
| if (!dev->rom_bar) { |
| /* compatibility with pc-0.13 and older */ |
| vga_init_vbe(s); |
| } |
| |
| return 0; |
| } |
| |
| int pci_vga_init(PCIBus *bus) |
| { |
| pci_create_simple(bus, -1, "VGA"); |
| return 0; |
| } |
| |
| static PCIDeviceInfo vga_info = { |
| .qdev.name = "VGA", |
| .qdev.size = sizeof(PCIVGAState), |
| .qdev.vmsd = &vmstate_vga_pci, |
| .no_hotplug = 1, |
| .init = pci_vga_initfn, |
| .config_write = pci_vga_write_config, |
| .romfile = "vgabios-stdvga.bin", |
| |
| /* dummy VGA (same as Bochs ID) */ |
| .vendor_id = PCI_VENDOR_ID_QEMU, |
| .device_id = PCI_DEVICE_ID_QEMU_VGA, |
| .class_id = PCI_CLASS_DISPLAY_VGA, |
| }; |
| |
| static void vga_register(void) |
| { |
| pci_qdev_register(&vga_info); |
| } |
| device_init(vga_register); |