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/*
* 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 "qemu/osdep.h"
#include "hw/isa/isa.h"
#include "vga_int.h"
#include "ui/pixel_ops.h"
#include "qemu/module.h"
#include "qemu/timer.h"
#include "hw/loader.h"
#include "hw/qdev-properties.h"
#include "qom/object.h"
#include "qapi/error.h"
#define TYPE_ISA_VGA "isa-vga"
OBJECT_DECLARE_SIMPLE_TYPE(ISAVGAState, ISA_VGA)
struct ISAVGAState {
ISADevice parent_obj;
struct VGACommonState state;
PortioList portio_vga;
PortioList portio_vbe;
};
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;
/*
* make sure this device is not being added twice, if so
* exit without crashing qemu
*/
if (object_resolve_path_type("", TYPE_ISA_VGA, NULL)) {
error_setg(errp, "at most one %s device is permitted", TYPE_ISA_VGA);
return;
}
s->global_vmstate = true;
vga_common_init(s, OBJECT(dev));
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, &d->portio_vga,
0x3b0, vga_ports, s, "vga");
if (vbe_ports) {
isa_register_portio_list(isadev, &d->portio_vbe,
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(dev, 0, s->hw_ops, s);
memory_region_add_subregion(isa_address_space(isadev),
VBE_DISPI_LFB_PHYSICAL_ADDRESS,
&s->vram);
/* 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;
device_class_set_props(dc, 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)
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