1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2010 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GRUB_VGA_HEADER
#define GRUB_VGA_HEADER 1
#ifndef GRUB_MACHINE_MIPS_QEMU_MIPS
#include <grub/pci.h>
#else
#include <grub/cpu/io.h>
#define GRUB_MACHINE_PCI_IO_BASE 0xb4000000
#endif
#include <grub/vgaregs.h>
static inline void
grub_vga_gr_write (grub_uint8_t val, grub_uint8_t addr)
{
grub_outb (addr, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_GR_INDEX);
grub_outb (val, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_GR_DATA);
}
static inline grub_uint8_t
grub_vga_gr_read (grub_uint8_t addr)
{
grub_outb (addr, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_GR_INDEX);
return grub_inb (GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_GR_DATA);
}
static inline void
grub_vga_cr_write (grub_uint8_t val, grub_uint8_t addr)
{
grub_outb (addr, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_CR_INDEX);
grub_outb (val, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_CR_DATA);
}
static inline grub_uint8_t
grub_vga_cr_read (grub_uint8_t addr)
{
grub_outb (addr, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_CR_INDEX);
return grub_inb (GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_CR_DATA);
}
static inline void
grub_vga_cr_bw_write (grub_uint8_t val, grub_uint8_t addr)
{
grub_outb (addr, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_CR_BW_INDEX);
grub_outb (val, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_CR_BW_DATA);
}
static inline grub_uint8_t
grub_vga_cr_bw_read (grub_uint8_t addr)
{
grub_outb (addr, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_CR_BW_INDEX);
return grub_inb (GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_CR_BW_DATA);
}
static inline void
grub_vga_sr_write (grub_uint8_t val, grub_uint8_t addr)
{
grub_outb (addr, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_SR_INDEX);
grub_outb (val, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_SR_DATA);
}
static inline grub_uint8_t
grub_vga_sr_read (grub_uint8_t addr)
{
grub_outb (addr, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_SR_INDEX);
return grub_inb (GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_SR_DATA);
}
static inline void
grub_vga_palette_read (grub_uint8_t addr, grub_uint8_t *r, grub_uint8_t *g,
grub_uint8_t *b)
{
grub_outb (addr, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_PALLETTE_READ_INDEX);
*r = grub_inb (GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_PALLETTE_DATA);
*g = grub_inb (GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_PALLETTE_DATA);
*b = grub_inb (GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_PALLETTE_DATA);
}
static inline void
grub_vga_palette_write (grub_uint8_t addr, grub_uint8_t r, grub_uint8_t g,
grub_uint8_t b)
{
grub_outb (addr, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_PALLETTE_WRITE_INDEX);
grub_outb (r, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_PALLETTE_DATA);
grub_outb (g, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_PALLETTE_DATA);
grub_outb (b, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_PALLETTE_DATA);
}
static inline void
grub_vga_write_arx (grub_uint8_t val, grub_uint8_t addr)
{
grub_inb (GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_INPUT_STATUS1_REGISTER);
grub_inb (GRUB_MACHINE_PCI_IO_BASE + 0x3ba);
grub_outb (addr, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_ARX);
grub_inb (GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_ARX_READ);
grub_outb (val, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_ARX);
}
static inline grub_uint8_t
grub_vga_read_arx (grub_uint8_t addr)
{
grub_uint8_t val;
grub_inb (GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_INPUT_STATUS1_REGISTER);
grub_outb (addr, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_ARX);
val = grub_inb (GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_ARX_READ);
grub_outb (val, GRUB_MACHINE_PCI_IO_BASE + GRUB_VGA_IO_ARX);
return val;
}
#endif
|
