LXR qemu/hw/display/cirrus_vga

   1/*
   2 * QEMU Cirrus CLGD 54xx VGA Emulator, ISA bus support
   3 *
   4 * Copyright (c) 2004 Fabrice Bellard
   5 * Copyright (c) 2004 Makoto Suzuki (suzu)
   6 *
   7 * Permission is hereby granted, free of charge, to any person obtaining a copy
   8 * of this software and associated documentation files (the "Software"), to deal
   9 * in the Software without restriction, including without limitation the rights
  10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11 * copies of the Software, and to permit persons to whom the Software is
  12 * furnished to do so, subject to the following conditions:
  13 *
  14 * The above copyright notice and this permission notice shall be included in
  15 * all copies or substantial portions of the Software.
  16 *
  17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  23 * THE SOFTWARE.
  24 */
  25
  26#include "qemu/osdep.h"
  27#include "qapi/error.h"
  28#include "hw/hw.h"
  29#include "hw/loader.h"
  30#include "hw/isa/isa.h"
  31#include "cirrus_vga_internal.h"
  32
  33#define TYPE_ISA_CIRRUS_VGA "isa-cirrus-vga"
  34#define ISA_CIRRUS_VGA(obj) \
  35    OBJECT_CHECK(ISACirrusVGAState, (obj), TYPE_ISA_CIRRUS_VGA)
  36
  37typedef struct ISACirrusVGAState {
  38    ISADevice parent_obj;
  39
  40    CirrusVGAState cirrus_vga;
  41} ISACirrusVGAState;
  42
  43static void isa_cirrus_vga_realizefn(DeviceState *dev, Error **errp)
  44{
  45    ISADevice *isadev = ISA_DEVICE(dev);
  46    ISACirrusVGAState *d = ISA_CIRRUS_VGA(dev);
  47    VGACommonState *s = &d->cirrus_vga.vga;
  48
  49    /* follow real hardware, cirrus card emulated has 4 MB video memory.
  50       Also accept 8 MB/16 MB for backward compatibility. */
  51    if (s->vram_size_mb != 4 && s->vram_size_mb != 8 &&
  52        s->vram_size_mb != 16) {
  53        error_setg(errp, "Invalid cirrus_vga ram size '%u'",
  54                   s->vram_size_mb);
  55        return;
  56    }
  57    s->global_vmstate = true;
  58    vga_common_init(s, OBJECT(dev));
  59    cirrus_init_common(&d->cirrus_vga, OBJECT(dev), CIRRUS_ID_CLGD5430, 0,
  60                       isa_address_space(isadev),
  61                       isa_address_space_io(isadev));
  62    s->con = graphic_console_init(dev, 0, s->hw_ops, s);
  63    rom_add_vga(VGABIOS_CIRRUS_FILENAME);
  64    /* XXX ISA-LFB support */
  65    /* FIXME not qdev yet */
  66}
  67
  68static Property isa_cirrus_vga_properties[] = {
  69    DEFINE_PROP_UINT32("vgamem_mb", struct ISACirrusVGAState,
  70                       cirrus_vga.vga.vram_size_mb, 4),
  71    DEFINE_PROP_BOOL("blitter", struct ISACirrusVGAState,
  72                     cirrus_vga.enable_blitter, true),
  73    DEFINE_PROP_END_OF_LIST(),
  74};
  75
  76static void isa_cirrus_vga_class_init(ObjectClass *klass, void *data)
  77{
  78    DeviceClass *dc = DEVICE_CLASS(klass);
  79
  80    dc->vmsd  = &vmstate_cirrus_vga;
  81    dc->realize = isa_cirrus_vga_realizefn;
  82    dc->props = isa_cirrus_vga_properties;
  83    set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
  84}
  85
  86static const TypeInfo isa_cirrus_vga_info = {
  87    .name          = TYPE_ISA_CIRRUS_VGA,
  88    .parent        = TYPE_ISA_DEVICE,
  89    .instance_size = sizeof(ISACirrusVGAState),
  90    .class_init = isa_cirrus_vga_class_init,
  91};
  92
  93static void cirrus_vga_isa_register_types(void)
  94{
  95    type_register_static(&isa_cirrus_vga_info);
  96}
  97
  98type_init(cirrus_vga_isa_register_types)
  99