1 /* 2 * QEMU ISA VGA Emulator. 3 * 4 * see docs/specs/standard-vga.txt for virtual hardware specs. 5 * 6 * Copyright (c) 2003 Fabrice Bellard 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a copy 9 * of this software and associated documentation files (the "Software"), to deal 10 * in the Software without restriction, including without limitation the rights 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12 * copies of the Software, and to permit persons to whom the Software is 13 * furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice shall be included in 16 * all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 24 * THE SOFTWARE. 25 */ 26 #include "hw/hw.h" 27 #include "ui/console.h" 28 #include "hw/i386/pc.h" 29 #include "vga_int.h" 30 #include "ui/pixel_ops.h" 31 #include "qemu/timer.h" 32 #include "hw/loader.h" 33 34 typedef struct ISAVGAState { 35 ISADevice dev; 36 struct VGACommonState state; 37 } ISAVGAState; 38 39 static void vga_reset_isa(DeviceState *dev) 40 { 41 ISAVGAState *d = container_of(dev, ISAVGAState, dev.qdev); 42 VGACommonState *s = &d->state; 43 44 vga_common_reset(s); 45 } 46 47 static int vga_initfn(ISADevice *dev) 48 { 49 ISAVGAState *d = DO_UPCAST(ISAVGAState, dev, dev); 50 VGACommonState *s = &d->state; 51 MemoryRegion *vga_io_memory; 52 const MemoryRegionPortio *vga_ports, *vbe_ports; 53 54 vga_common_init(s); 55 s->legacy_address_space = isa_address_space(dev); 56 vga_io_memory = vga_init_io(s, &vga_ports, &vbe_ports); 57 isa_register_portio_list(dev, 0x3b0, vga_ports, s, "vga"); 58 if (vbe_ports) { 59 isa_register_portio_list(dev, 0x1ce, vbe_ports, s, "vbe"); 60 } 61 memory_region_add_subregion_overlap(isa_address_space(dev), 62 isa_mem_base + 0x000a0000, 63 vga_io_memory, 1); 64 memory_region_set_coalescing(vga_io_memory); 65 s->con = graphic_console_init(s->update, s->invalidate, 66 s->screen_dump, s->text_update, s); 67 68 vga_init_vbe(s, isa_address_space(dev)); 69 /* ROM BIOS */ 70 rom_add_vga(VGABIOS_FILENAME); 71 return 0; 72 } 73 74 static Property vga_isa_properties[] = { 75 DEFINE_PROP_UINT32("vgamem_mb", ISAVGAState, state.vram_size_mb, 8), 76 DEFINE_PROP_END_OF_LIST(), 77 }; 78 79 static void vga_class_initfn(ObjectClass *klass, void *data) 80 { 81 DeviceClass *dc = DEVICE_CLASS(klass); 82 ISADeviceClass *ic = ISA_DEVICE_CLASS(klass); 83 ic->init = vga_initfn; 84 dc->reset = vga_reset_isa; 85 dc->vmsd = &vmstate_vga_common; 86 dc->props = vga_isa_properties; 87 } 88 89 static const TypeInfo vga_info = { 90 .name = "isa-vga", 91 .parent = TYPE_ISA_DEVICE, 92 .instance_size = sizeof(ISAVGAState), 93 .class_init = vga_class_initfn, 94 }; 95 96 static void vga_register_types(void) 97 { 98 type_register_static(&vga_info); 99 } 100 101 type_init(vga_register_types) 102