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1.1 root 1: #ifndef __BOCHSVGA_H
2: #define __BOCHSVGA_H
3:
4: #include "types.h" // u8
5: #include "ioport.h" // outw
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:
44: static inline u16 dispi_read(u16 reg)
45: {
46: outw(reg, VBE_DISPI_IOPORT_INDEX);
47: return inw(VBE_DISPI_IOPORT_DATA);
48: }
49: static 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: struct vgamode_s *bochsvga_find_mode(int mode);
56: void bochsvga_list_modes(u16 seg, u16 *dest, u16 *last);
57: int bochsvga_get_window(struct vgamode_s *vmode_g, int window);
58: int bochsvga_set_window(struct vgamode_s *vmode_g, int window, int val);
59: int bochsvga_get_linelength(struct vgamode_s *vmode_g);
60: int bochsvga_set_linelength(struct vgamode_s *vmode_g, int val);
61: int bochsvga_get_displaystart(struct vgamode_s *vmode_g);
62: int bochsvga_set_displaystart(struct vgamode_s *vmode_g, int val);
63: int bochsvga_get_dacformat(struct vgamode_s *vmode_g);
64: int bochsvga_set_dacformat(struct vgamode_s *vmode_g, int val);
65: int bochsvga_size_state(int states);
66: int bochsvga_save_state(u16 seg, void *data, int states);
67: int bochsvga_restore_state(u16 seg, void *data, int states);
68: int bochsvga_set_mode(struct vgamode_s *vmode_g, int flags);
69: int bochsvga_init(void);
70:
71: #endif // bochsvga.h
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