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Julian Pidancet8bd766f2011-12-19 05:08:01 +00001#ifndef __DISPI_H
2#define __DISPI_H
3
4#include "types.h" // u8
5#include "ioport.h" // outb
6
7#define VBE_DISPI_BANK_ADDRESS 0xA0000
8#define VBE_DISPI_BANK_SIZE_KB 64
9
10#define VBE_DISPI_MAX_XRES 2560
11#define VBE_DISPI_MAX_YRES 1600
12
13#define VBE_DISPI_IOPORT_INDEX 0x01CE
14#define VBE_DISPI_IOPORT_DATA 0x01CF
15
16#define VBE_DISPI_INDEX_ID 0x0
17#define VBE_DISPI_INDEX_XRES 0x1
18#define VBE_DISPI_INDEX_YRES 0x2
19#define VBE_DISPI_INDEX_BPP 0x3
20#define VBE_DISPI_INDEX_ENABLE 0x4
21#define VBE_DISPI_INDEX_BANK 0x5
22#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
23#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
24#define VBE_DISPI_INDEX_X_OFFSET 0x8
25#define VBE_DISPI_INDEX_Y_OFFSET 0x9
26#define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa
27
28#define VBE_DISPI_ID0 0xB0C0
29#define VBE_DISPI_ID1 0xB0C1
30#define VBE_DISPI_ID2 0xB0C2
31#define VBE_DISPI_ID3 0xB0C3
32#define VBE_DISPI_ID4 0xB0C4
33#define VBE_DISPI_ID5 0xB0C5
34
35#define VBE_DISPI_DISABLED 0x00
36#define VBE_DISPI_ENABLED 0x01
37#define VBE_DISPI_GETCAPS 0x02
38#define VBE_DISPI_8BIT_DAC 0x20
39#define VBE_DISPI_LFB_ENABLED 0x40
40#define VBE_DISPI_NOCLEARMEM 0x80
41
42#define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000
43
44static inline u16 dispi_read(u16 reg)
45{
46 outw(reg, VBE_DISPI_IOPORT_INDEX);
47 return inw(VBE_DISPI_IOPORT_DATA);
48}
49static inline void dispi_write(u16 reg, u16 val)
50{
51 outw(reg, VBE_DISPI_IOPORT_INDEX);
52 outw(val, VBE_DISPI_IOPORT_DATA);
53}
54
55#endif