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 "qemu/module.h"
  29 #include "hw/loader.h"
  30 #include "hw/qdev-properties.h"
  31 #include "hw/isa/isa.h"
  32 #include "cirrus_vga_internal.h"
  33 #include "qom/object.h"
  34 #include "ui/console.h"
  35
  36 #define TYPE_ISA_CIRRUS_VGA "isa-cirrus-vga"
  37 OBJECT_DECLARE_SIMPLE_TYPE(ISACirrusVGAState, ISA_CIRRUS_VGA)
  38
  39 struct ISACirrusVGAState {
  40     ISADevice parent_obj;
  41
  42     CirrusVGAState cirrus_vga;
  43 };
  44
  45 static void isa_cirrus_vga_realizefn(DeviceState *dev, Error **errp)
  46 {
  47     ISADevice *isadev = ISA_DEVICE(dev);
  48     ISACirrusVGAState *d = ISA_CIRRUS_VGA(dev);
  49     VGACommonState *s = &d->cirrus_vga.vga;
  50
  51     /* follow real hardware, cirrus card emulated has 4 MB video memory.
  52        Also accept 8 MB/16 MB for backward compatibility. */
  53     if (s->vram_size_mb != 4 && s->vram_size_mb != 8 &&
  54         s->vram_size_mb != 16) {
  55         error_setg(errp, "Invalid cirrus_vga ram size '%u'",
  56                    s->vram_size_mb);
  57         return;
  58     }
  59     s->global_vmstate = true;
  60     if (!vga_common_init(s, OBJECT(dev), errp)) {
  61         return;
  62     }
  63     cirrus_init_common(&d->cirrus_vga, OBJECT(dev), CIRRUS_ID_CLGD5430, 0,
  64                        isa_address_space(isadev),
  65                        isa_address_space_io(isadev));
  66     s->con = graphic_console_init(dev, 0, s->hw_ops, s);
  67     rom_add_vga(VGABIOS_CIRRUS_FILENAME);
  68     /* XXX ISA-LFB support */
  69     /* FIXME not qdev yet */
  70 }
  71
  72 static Property isa_cirrus_vga_properties[] = {
  73     DEFINE_PROP_UINT32("vgamem_mb", struct ISACirrusVGAState,
  74                        cirrus_vga.vga.vram_size_mb, 4),
  75     DEFINE_PROP_BOOL("blitter", struct ISACirrusVGAState,
  76                      cirrus_vga.enable_blitter, true),
  77     DEFINE_PROP_END_OF_LIST(),
  78 };
  79
  80 static void isa_cirrus_vga_class_init(ObjectClass *klass, void *data)
  81 {
  82     DeviceClass *dc = DEVICE_CLASS(klass);
  83
  84     dc->vmsd  = &vmstate_cirrus_vga;
  85     dc->realize = isa_cirrus_vga_realizefn;
  86     device_class_set_props(dc, isa_cirrus_vga_properties);
  87     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
  88 }
  89
  90 static const TypeInfo isa_cirrus_vga_info = {
  91     .name          = TYPE_ISA_CIRRUS_VGA,
  92     .parent        = TYPE_ISA_DEVICE,
  93     .instance_size = sizeof(ISACirrusVGAState),
  94     .class_init = isa_cirrus_vga_class_init,
  95 };
  96
  97 static void cirrus_vga_isa_register_types(void)
  98 {
  99     type_register_static(&isa_cirrus_vga_info);
 100 }
 101
 102 type_init(cirrus_vga_isa_register_types)