sm501: Add missing arbitration control register
[qemu.git] / hw / display / vga-isa.c
1 /*
2 * QEMU ISA VGA Emulator.
3 *
4 * see docs/specs/standard-vga.txt for virtual hardware specs.
5 *
6 * Copyright (c) 2003 Fabrice Bellard
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 * THE SOFTWARE.
25 */
26 #include "qemu/osdep.h"
27 #include "hw/hw.h"
28 #include "ui/console.h"
29 #include "hw/i386/pc.h"
30 #include "vga_int.h"
31 #include "ui/pixel_ops.h"
32 #include "qemu/timer.h"
33 #include "hw/loader.h"
34
35 #define TYPE_ISA_VGA "isa-vga"
36 #define ISA_VGA(obj) OBJECT_CHECK(ISAVGAState, (obj), TYPE_ISA_VGA)
37
38 typedef struct ISAVGAState {
39 ISADevice parent_obj;
40
41 struct VGACommonState state;
42 PortioList portio_vga;
43 PortioList portio_vbe;
44 } ISAVGAState;
45
46 static void vga_isa_reset(DeviceState *dev)
47 {
48 ISAVGAState *d = ISA_VGA(dev);
49 VGACommonState *s = &d->state;
50
51 vga_common_reset(s);
52 }
53
54 static void vga_isa_realizefn(DeviceState *dev, Error **errp)
55 {
56 ISADevice *isadev = ISA_DEVICE(dev);
57 ISAVGAState *d = ISA_VGA(dev);
58 VGACommonState *s = &d->state;
59 MemoryRegion *vga_io_memory;
60 const MemoryRegionPortio *vga_ports, *vbe_ports;
61
62 vga_common_init(s, OBJECT(dev), true);
63 s->legacy_address_space = isa_address_space(isadev);
64 vga_io_memory = vga_init_io(s, OBJECT(dev), &vga_ports, &vbe_ports);
65 isa_register_portio_list(isadev, &d->portio_vga,
66 0x3b0, vga_ports, s, "vga");
67 if (vbe_ports) {
68 isa_register_portio_list(isadev, &d->portio_vbe,
69 0x1ce, vbe_ports, s, "vbe");
70 }
71 memory_region_add_subregion_overlap(isa_address_space(isadev),
72 0x000a0000,
73 vga_io_memory, 1);
74 memory_region_set_coalescing(vga_io_memory);
75 s->con = graphic_console_init(DEVICE(dev), 0, s->hw_ops, s);
76
77 vga_init_vbe(s, OBJECT(dev), isa_address_space(isadev));
78 /* ROM BIOS */
79 rom_add_vga(VGABIOS_FILENAME);
80 }
81
82 static Property vga_isa_properties[] = {
83 DEFINE_PROP_UINT32("vgamem_mb", ISAVGAState, state.vram_size_mb, 8),
84 DEFINE_PROP_END_OF_LIST(),
85 };
86
87 static void vga_isa_class_initfn(ObjectClass *klass, void *data)
88 {
89 DeviceClass *dc = DEVICE_CLASS(klass);
90
91 dc->realize = vga_isa_realizefn;
92 dc->reset = vga_isa_reset;
93 dc->vmsd = &vmstate_vga_common;
94 dc->props = vga_isa_properties;
95 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
96 }
97
98 static const TypeInfo vga_isa_info = {
99 .name = TYPE_ISA_VGA,
100 .parent = TYPE_ISA_DEVICE,
101 .instance_size = sizeof(ISAVGAState),
102 .class_init = vga_isa_class_initfn,
103 };
104
105 static void vga_isa_register_types(void)
106 {
107 type_register_static(&vga_isa_info);
108 }
109
110 type_init(vga_isa_register_types)