Archipelago » qemu

/*

 * QEMU ISA 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 "vga_int.h"

#include "pixel_ops.h"

#include "qemu-timer.h"

#include "loader.h"

typedef struct ISAVGAState {

    ISADevice dev;

    struct VGACommonState state;

} ISAVGAState;

static void vga_reset_isa(DeviceState *dev)

{

    ISAVGAState *d = container_of(dev, ISAVGAState, dev.qdev);

    VGACommonState *s = &d->state;

    vga_common_reset(s);

}

static int vga_initfn(ISADevice *dev)

{

    ISAVGAState *d = DO_UPCAST(ISAVGAState, dev, dev);

    VGACommonState *s = &d->state;

    MemoryRegion *vga_io_memory;

    const MemoryRegionPortio *vga_ports, *vbe_ports;

    vga_common_init(s, VGA_RAM_SIZE);

    s->legacy_address_space = isa_address_space(dev);

    vga_io_memory = vga_init_io(s, &vga_ports, &vbe_ports);

    isa_register_portio_list(dev, 0x3b0, vga_ports, s, "vga");

    if (vbe_ports) {

        isa_register_portio_list(dev, 0x1ce, vbe_ports, s, "vbe");

    }

    memory_region_add_subregion_overlap(isa_address_space(dev),

                                        isa_mem_base + 0x000a0000,

                                        vga_io_memory, 1);

    memory_region_set_coalescing(vga_io_memory);

    s->ds = graphic_console_init(s->update, s->invalidate,

                                 s->screen_dump, s->text_update, s);

    vga_init_vbe(s, isa_address_space(dev));

    /* ROM BIOS */

    rom_add_vga(VGABIOS_FILENAME);

    return 0;

}

static void vga_class_initfn(ObjectClass *klass, void *data)

{

    DeviceClass *dc = DEVICE_CLASS(klass);

    ISADeviceClass *ic = ISA_DEVICE_CLASS(klass);

    ic->init = vga_initfn;

    dc->reset = vga_reset_isa;

    dc->vmsd = &vmstate_vga_common;

}

static TypeInfo vga_info = {

    .name          = "isa-vga",

    .parent        = TYPE_ISA_DEVICE,

    .instance_size = sizeof(ISAVGAState),

    .class_init    = vga_class_initfn,

};

static void vga_register_types(void)

{

    type_register_static(&vga_info);

}

type_init(vga_register_types)