106 lines
3.4 KiB
C
106 lines
3.4 KiB
C
/*
|
|
* QEMU ISA VGA Emulator.
|
|
*
|
|
* see docs/specs/standard-vga.txt for virtual hardware specs.
|
|
*
|
|
* 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/hw.h"
|
|
#include "ui/console.h"
|
|
#include "hw/i386/pc.h"
|
|
#include "vga_int.h"
|
|
#include "ui/pixel_ops.h"
|
|
#include "qemu/timer.h"
|
|
#include "hw/loader.h"
|
|
|
|
#define TYPE_ISA_VGA "isa-vga"
|
|
#define ISA_VGA(obj) OBJECT_CHECK(ISAVGAState, (obj), TYPE_ISA_VGA)
|
|
|
|
typedef struct ISAVGAState {
|
|
ISADevice parent_obj;
|
|
|
|
struct VGACommonState state;
|
|
} ISAVGAState;
|
|
|
|
static void vga_isa_reset(DeviceState *dev)
|
|
{
|
|
ISAVGAState *d = ISA_VGA(dev);
|
|
VGACommonState *s = &d->state;
|
|
|
|
vga_common_reset(s);
|
|
}
|
|
|
|
static void vga_isa_realizefn(DeviceState *dev, Error **errp)
|
|
{
|
|
ISADevice *isadev = ISA_DEVICE(dev);
|
|
ISAVGAState *d = ISA_VGA(dev);
|
|
VGACommonState *s = &d->state;
|
|
MemoryRegion *vga_io_memory;
|
|
const MemoryRegionPortio *vga_ports, *vbe_ports;
|
|
|
|
vga_common_init(s, OBJECT(dev), true);
|
|
s->legacy_address_space = isa_address_space(isadev);
|
|
vga_io_memory = vga_init_io(s, OBJECT(dev), &vga_ports, &vbe_ports);
|
|
isa_register_portio_list(isadev, 0x3b0, vga_ports, s, "vga");
|
|
if (vbe_ports) {
|
|
isa_register_portio_list(isadev, 0x1ce, vbe_ports, s, "vbe");
|
|
}
|
|
memory_region_add_subregion_overlap(isa_address_space(isadev),
|
|
0x000a0000,
|
|
vga_io_memory, 1);
|
|
memory_region_set_coalescing(vga_io_memory);
|
|
s->con = graphic_console_init(DEVICE(dev), 0, s->hw_ops, s);
|
|
|
|
vga_init_vbe(s, OBJECT(dev), isa_address_space(isadev));
|
|
/* ROM BIOS */
|
|
rom_add_vga(VGABIOS_FILENAME);
|
|
}
|
|
|
|
static Property vga_isa_properties[] = {
|
|
DEFINE_PROP_UINT32("vgamem_mb", ISAVGAState, state.vram_size_mb, 8),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void vga_isa_class_initfn(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
|
|
dc->realize = vga_isa_realizefn;
|
|
dc->reset = vga_isa_reset;
|
|
dc->vmsd = &vmstate_vga_common;
|
|
dc->props = vga_isa_properties;
|
|
set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
|
|
}
|
|
|
|
static const TypeInfo vga_isa_info = {
|
|
.name = TYPE_ISA_VGA,
|
|
.parent = TYPE_ISA_DEVICE,
|
|
.instance_size = sizeof(ISAVGAState),
|
|
.class_init = vga_isa_class_initfn,
|
|
};
|
|
|
|
static void vga_isa_register_types(void)
|
|
{
|
|
type_register_static(&vga_isa_info);
|
|
}
|
|
|
|
type_init(vga_isa_register_types)
|