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review.coreboot.org / seabios / ed68e5b601ad283b48ced1f5b25b58c1b8d00815 / . / vgasrc / stdvga.h
blob: 53fe3cf7fa7c628e1b748a4b49f6af3b86e8c7c3 [file] [log] [blame]
Kevin O'Connored68e5b2011-12-31 04:15:12 -0500[diff] [blame^]1#ifndef __STDVGA_H
2#define __STDVGA_H
3
4#include "types.h" // u8
5
6// VGA registers
7#define VGAREG_ACTL_ADDRESS 0x3c0
8#define VGAREG_ACTL_WRITE_DATA 0x3c0
9#define VGAREG_ACTL_READ_DATA 0x3c1
10
11#define VGAREG_INPUT_STATUS 0x3c2
12#define VGAREG_WRITE_MISC_OUTPUT 0x3c2
13#define VGAREG_VIDEO_ENABLE 0x3c3
14#define VGAREG_SEQU_ADDRESS 0x3c4
15#define VGAREG_SEQU_DATA 0x3c5
16
17#define VGAREG_PEL_MASK 0x3c6
18#define VGAREG_DAC_STATE 0x3c7
19#define VGAREG_DAC_READ_ADDRESS 0x3c7
20#define VGAREG_DAC_WRITE_ADDRESS 0x3c8
21#define VGAREG_DAC_DATA 0x3c9
22
23#define VGAREG_READ_FEATURE_CTL 0x3ca
24#define VGAREG_READ_MISC_OUTPUT 0x3cc
25
26#define VGAREG_GRDC_ADDRESS 0x3ce
27#define VGAREG_GRDC_DATA 0x3cf
28
29#define VGAREG_MDA_CRTC_ADDRESS 0x3b4
30#define VGAREG_MDA_CRTC_DATA 0x3b5
31#define VGAREG_VGA_CRTC_ADDRESS 0x3d4
32#define VGAREG_VGA_CRTC_DATA 0x3d5
33
34#define VGAREG_MDA_WRITE_FEATURE_CTL 0x3ba
35#define VGAREG_VGA_WRITE_FEATURE_CTL 0x3da
36#define VGAREG_ACTL_RESET 0x3da
37
38#define VGAREG_MDA_MODECTL 0x3b8
39#define VGAREG_CGA_MODECTL 0x3d8
40#define VGAREG_CGA_PALETTE 0x3d9
41
42/* Video memory */
43#define SEG_GRAPH 0xA000
44#define SEG_CTEXT 0xB800
45#define SEG_MTEXT 0xB000
46
47/*
48 * Tables of default values for each mode
49 */
50#define TEXT 0x80
51
52#define CTEXT (0x00 | TEXT)
53#define MTEXT (0x01 | TEXT)
54#define CGA 0x02
55#define PLANAR1 0x03
56#define PLANAR4 0x04
57#define LINEAR8 0x05
58
59// for SVGA
60#define LINEAR15 0x10
61#define LINEAR16 0x11
62#define LINEAR24 0x12
63#define LINEAR32 0x13
64
65struct vgamode_s {
66 u8 svgamode;
67 u8 memmodel; /* CTEXT,MTEXT,CGA,PL1,PL2,PL4,P8,P15,P16,P24,P32 */
68 u8 twidth;
69 u8 theight;
70 u8 cheight;
71 u8 pixbits;
72 u16 sstart;
73 u16 slength;
74
75 u8 pelmask;
76 u8 *dac;
77 u16 dacsize;
78 u8 *sequ_regs;
79 u8 miscreg;
80 u8 *crtc_regs;
81 u8 *actl_regs;
82 u8 *grdc_regs;
83};
84
85struct saveVideoHardware {
86 u8 sequ_index;
87 u8 crtc_index;
88 u8 grdc_index;
89 u8 actl_index;
90 u8 feature;
91 u8 sequ_regs[4];
92 u8 sequ0;
93 u8 crtc_regs[25];
94 u8 actl_regs[20];
95 u8 grdc_regs[9];
96 u16 crtc_addr;
97 u8 plane_latch[4];
98};
99
100struct saveDACcolors {
101 u8 rwmode;
102 u8 peladdr;
103 u8 pelmask;
104 u8 dac[768];
105 u8 color_select;
106};
107
108void vgahw_screen_disable(void);
109void vgahw_screen_enable(void);
110void vgahw_set_border_color(u8 color);
111void vgahw_set_overscan_border_color(u8 color);
112u8 vgahw_get_overscan_border_color(void);
113void vgahw_set_palette(u8 palid);
114void vgahw_set_single_palette_reg(u8 reg, u8 val);
115u8 vgahw_get_single_palette_reg(u8 reg);
116void vgahw_set_all_palette_reg(u16 seg, u8 *data_far);
117void vgahw_get_all_palette_reg(u16 seg, u8 *data_far);
118void vgahw_toggle_intensity(u8 flag);
119void vgahw_select_video_dac_color_page(u8 flag, u8 data);
120void vgahw_read_video_dac_state(u8 *pmode, u8 *curpage);
121void vgahw_set_dac_regs(u16 seg, u8 *data_far, u8 start, int count);
122void vgahw_get_dac_regs(u16 seg, u8 *data_far, u8 start, int count);
123void vgahw_set_pel_mask(u8 val);
124u8 vgahw_get_pel_mask(void);
125void vgahw_save_dac_state(u16 seg, struct saveDACcolors *info);
126void vgahw_restore_dac_state(u16 seg, struct saveDACcolors *info);
127void vgahw_sequ_write(u8 index, u8 value);
128void vgahw_grdc_write(u8 index, u8 value);
129void vgahw_set_text_block_specifier(u8 spec);
130void get_font_access(void);
131void release_font_access(void);
132void vgahw_set_cursor_shape(u8 start, u8 end);
133void vgahw_set_active_page(u16 address);
134void vgahw_set_cursor_pos(u16 address);
135void vgahw_set_scan_lines(u8 lines);
136u16 vgahw_get_vde(void);
137void vgahw_save_state(u16 seg, struct saveVideoHardware *info);
138void vgahw_restore_state(u16 seg, struct saveVideoHardware *info);
139void vgahw_set_mode(struct vgamode_s *vmode_g);
140void vgahw_enable_video_addressing(u8 disable);
141void vgahw_init(void);
142
143#endif // stdvga.h