LXR qemu/hw/misc/sga.c

   1/*
   2 * QEMU dummy ISA device for loading sgabios option rom.
   3 *
   4 * Copyright (c) 2011 Glauber Costa, Red Hat Inc.
   5 *
   6 * Permission is hereby granted, free of charge, to any person obtaining a copy
   7 * of this software and associated documentation files (the "Software"), to deal
   8 * in the Software without restriction, including without limitation the rights
   9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10 * copies of the Software, and to permit persons to whom the Software is
  11 * furnished to do so, subject to the following conditions:
  12 *
  13 * The above copyright notice and this permission notice shall be included in
  14 * all copies or substantial portions of the Software.
  15 *
  16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22 * THE SOFTWARE.
  23 *
  24 * sgabios code originally available at code.google.com/p/sgabios
  25 *
  26 */
  27
  28#include "qemu/osdep.h"
  29#include "hw/isa/isa.h"
  30#include "hw/loader.h"
  31#include "qemu/module.h"
  32#include "sysemu/sysemu.h"
  33
  34#define SGABIOS_FILENAME "sgabios.bin"
  35
  36#define TYPE_SGA "sga"
  37#define SGA(obj) OBJECT_CHECK(ISASGAState, (obj), TYPE_SGA)
  38
  39typedef struct ISASGAState {
  40    ISADevice parent_obj;
  41} ISASGAState;
  42
  43static void sga_realizefn(DeviceState *dev, Error **errp)
  44{
  45    rom_add_vga(SGABIOS_FILENAME);
  46}
  47
  48static void sga_class_initfn(ObjectClass *klass, void *data)
  49{
  50    DeviceClass *dc = DEVICE_CLASS(klass);
  51
  52    set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
  53    dc->realize = sga_realizefn;
  54    dc->desc = "Serial Graphics Adapter";
  55}
  56
  57static const TypeInfo sga_info = {
  58    .name          = TYPE_SGA,
  59    .parent        = TYPE_ISA_DEVICE,
  60    .instance_size = sizeof(ISASGAState),
  61    .class_init    = sga_class_initfn,
  62};
  63
  64static void sga_register_types(void)
  65{
  66    type_register_static(&sga_info);
  67}
  68
  69type_init(sga_register_types)
  70