hw/display/cirrus_vga_isa.c

   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
  37 typedef struct ISACirrusVGAState {
  38     ISADevice parent_obj;
  39
  40     CirrusVGAState cirrus_vga;
  41 } ISACirrusVGAState;
  42
  43 static 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
  68 static 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
  76 static 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
  86 static 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
  93 static void cirrus_vga_isa_register_types(void)
  94 {
  95     type_register_static(&isa_cirrus_vga_info);
  96 }
  97
  98 type_init(cirrus_vga_isa_register_types)