root / hw / vga-pci.c @ c0b1905b
History | View | Annotate | Download (4.7 kB)
1 |
/*
|
---|---|
2 |
* QEMU PCI VGA Emulator.
|
3 |
*
|
4 |
* Copyright (c) 2003 Fabrice Bellard
|
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 |
#include "hw.h" |
25 |
#include "console.h" |
26 |
#include "pc.h" |
27 |
#include "pci.h" |
28 |
#include "vga_int.h" |
29 |
#include "pixel_ops.h" |
30 |
#include "qemu-timer.h" |
31 |
|
32 |
typedef struct PCIVGAState { |
33 |
PCIDevice dev; |
34 |
VGACommonState vga; |
35 |
} PCIVGAState; |
36 |
|
37 |
static void pci_vga_save(QEMUFile *f, void *opaque) |
38 |
{ |
39 |
PCIVGAState *s = opaque; |
40 |
|
41 |
pci_device_save(&s->dev, f); |
42 |
vga_common_save(f, &s->vga); |
43 |
} |
44 |
|
45 |
static int pci_vga_load(QEMUFile *f, void *opaque, int version_id) |
46 |
{ |
47 |
PCIVGAState *s = opaque; |
48 |
int ret;
|
49 |
|
50 |
if (version_id > 2) |
51 |
return -EINVAL;
|
52 |
|
53 |
if (version_id >= 2) { |
54 |
ret = pci_device_load(&s->dev, f); |
55 |
if (ret < 0) |
56 |
return ret;
|
57 |
} |
58 |
return vga_common_load(f, &s->vga, version_id);
|
59 |
} |
60 |
|
61 |
static void vga_map(PCIDevice *pci_dev, int region_num, |
62 |
uint32_t addr, uint32_t size, int type)
|
63 |
{ |
64 |
PCIVGAState *d = (PCIVGAState *)pci_dev; |
65 |
VGACommonState *s = &d->vga; |
66 |
if (region_num == PCI_ROM_SLOT) {
|
67 |
cpu_register_physical_memory(addr, s->bios_size, s->bios_offset); |
68 |
} else {
|
69 |
cpu_register_physical_memory(addr, s->vram_size, s->vram_offset); |
70 |
s->map_addr = addr; |
71 |
s->map_end = addr + s->vram_size; |
72 |
vga_dirty_log_start(s); |
73 |
} |
74 |
} |
75 |
|
76 |
static void pci_vga_write_config(PCIDevice *d, |
77 |
uint32_t address, uint32_t val, int len)
|
78 |
{ |
79 |
PCIVGAState *pvs = container_of(d, PCIVGAState, dev); |
80 |
VGACommonState *s = &pvs->vga; |
81 |
|
82 |
pci_default_write_config(d, address, val, len); |
83 |
if (s->map_addr && pvs->dev.io_regions[0].addr == -1) |
84 |
s->map_addr = 0;
|
85 |
} |
86 |
|
87 |
static int pci_vga_initfn(PCIDevice *dev) |
88 |
{ |
89 |
PCIVGAState *d = DO_UPCAST(PCIVGAState, dev, dev); |
90 |
VGACommonState *s = &d->vga; |
91 |
uint8_t *pci_conf = d->dev.config; |
92 |
|
93 |
// vga + console init
|
94 |
vga_common_init(s, VGA_RAM_SIZE); |
95 |
vga_init(s); |
96 |
register_savevm("vga", 0, 2, pci_vga_save, pci_vga_load, d); |
97 |
|
98 |
s->ds = graphic_console_init(s->update, s->invalidate, |
99 |
s->screen_dump, s->text_update, s); |
100 |
|
101 |
// dummy VGA (same as Bochs ID)
|
102 |
pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_QEMU); |
103 |
pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_QEMU_VGA); |
104 |
pci_config_set_class(pci_conf, PCI_CLASS_DISPLAY_VGA); |
105 |
pci_conf[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
|
106 |
|
107 |
/* XXX: VGA_RAM_SIZE must be a power of two */
|
108 |
pci_register_bar(&d->dev, 0, VGA_RAM_SIZE,
|
109 |
PCI_ADDRESS_SPACE_MEM_PREFETCH, vga_map); |
110 |
|
111 |
if (s->bios_size) {
|
112 |
unsigned int bios_total_size; |
113 |
/* must be a power of two */
|
114 |
bios_total_size = 1;
|
115 |
while (bios_total_size < s->bios_size)
|
116 |
bios_total_size <<= 1;
|
117 |
pci_register_bar(&d->dev, PCI_ROM_SLOT, bios_total_size, |
118 |
PCI_ADDRESS_SPACE_MEM_PREFETCH, vga_map); |
119 |
} |
120 |
return 0; |
121 |
} |
122 |
|
123 |
int pci_vga_init(PCIBus *bus,
|
124 |
unsigned long vga_bios_offset, int vga_bios_size) |
125 |
{ |
126 |
PCIDevice *dev; |
127 |
|
128 |
dev = pci_create("VGA", NULL); |
129 |
qdev_prop_set_uint32(&dev->qdev, "bios-offset", vga_bios_offset);
|
130 |
qdev_prop_set_uint32(&dev->qdev, "bios-size", vga_bios_offset);
|
131 |
qdev_init(&dev->qdev); |
132 |
|
133 |
return 0; |
134 |
} |
135 |
|
136 |
static PCIDeviceInfo vga_info = {
|
137 |
.qdev.name = "VGA",
|
138 |
.qdev.size = sizeof(PCIVGAState),
|
139 |
.init = pci_vga_initfn, |
140 |
.config_write = pci_vga_write_config, |
141 |
.qdev.props = (Property[]) { |
142 |
DEFINE_PROP_HEX32("bios-offset", PCIVGAState, vga.bios_offset, 0), |
143 |
DEFINE_PROP_HEX32("bios-size", PCIVGAState, vga.bios_size, 0), |
144 |
DEFINE_PROP_END_OF_LIST(), |
145 |
} |
146 |
}; |
147 |
|
148 |
static void vga_register(void) |
149 |
{ |
150 |
pci_qdev_register(&vga_info); |
151 |
} |
152 |
device_init(vga_register); |