blob: 02cf3e3250c2bd6da1edc08255471bc48ecb4e58 [file] [log] [blame]
Kevin O'Connore1e000b2011-12-31 03:30:40 -05001#ifndef __VGABIOS_H
2#define __VGABIOS_H
Kevin O'Connor1f2c3072009-05-06 23:35:59 -04003
4#include "types.h" // u8
Kevin O'Connor9f985422009-09-09 11:34:39 -04005#include "farptr.h" // struct segoff_s
Kevin O'Connor1f2c3072009-05-06 23:35:59 -04006
Kevin O'Connoraad3b692012-01-14 23:15:40 -05007// standard BIOS Video Parameter Table
8struct VideoParam_s {
9 u8 twidth;
10 u8 theightm1;
11 u8 cheight;
12 u16 slength;
13 u8 sequ_regs[4];
14 u8 miscreg;
15 u8 crtc_regs[25];
16 u8 actl_regs[20];
17 u8 grdc_regs[9];
18} PACKED;
19
20extern struct VideoParam_s video_param_table[29];
21
Kevin O'Connor20dc4192014-02-05 20:52:25 -050022// Save/Restore flags
23#define SR_HARDWARE 0x0001
24#define SR_BDA 0x0002
25#define SR_DAC 0x0004
26#define SR_REGISTERS 0x0008
27#define SR_SAVE 0x0100
28#define SR_RESTORE 0x0200
Kevin O'Connorca668642009-05-21 23:06:08 -040029
Kevin O'Connor821d6b42011-12-31 18:19:22 -050030// Mode flags
Kevin O'Connorb7b92932013-03-09 13:04:47 -050031#define MF_LEGACY 0x0001
Kevin O'Connor821d6b42011-12-31 18:19:22 -050032#define MF_GRAYSUM 0x0002
33#define MF_NOPALETTE 0x0008
34#define MF_CUSTOMCRTC 0x0800
35#define MF_LINEARFB 0x4000
36#define MF_NOCLEARMEM 0x8000
Kevin O'Connore6bc4c12012-01-21 11:26:37 -050037#define MF_VBEFLAGS 0xfe00
Kevin O'Connor821d6b42011-12-31 18:19:22 -050038
Kevin O'Connord4398ad2012-01-01 12:32:53 -050039// Memory model types
40#define MM_TEXT 0x00
41#define MM_CGA 0x01
42#define MM_HERCULES 0x02
43#define MM_PLANAR 0x03
44#define MM_PACKED 0x04
45#define MM_NON_CHAIN_4_256 0x05
46#define MM_DIRECT 0x06
47#define MM_YUV 0x07
48
Kevin O'Connor10dff3d2012-01-09 19:19:44 -050049struct vgamode_s {
50 u8 memmodel;
51 u16 width;
52 u16 height;
53 u8 depth;
54 u8 cwidth;
55 u8 cheight;
56 u16 sstart;
57};
58
Kevin O'Connorf864b602014-03-24 12:49:44 -040059// Graphics pixel operations.
60struct gfx_op {
61 struct vgamode_s *vmode_g;
62 u32 linelength;
Kevin O'Connor098c2fc2014-04-05 17:11:06 -040063 u32 displaystart;
Kevin O'Connorf864b602014-03-24 12:49:44 -040064
65 u8 op;
66 u16 x, y;
67
68 u8 pixels[8];
69 u16 xlen, ylen;
70 u16 srcy;
71};
72
73#define GO_READ8 1
74#define GO_WRITE8 2
75#define GO_MEMSET 3
76#define GO_MEMMOVE 4
77
78// Debug settings
79#define DEBUG_VGA_POST 1
80#define DEBUG_VGA_10 3
81
Kevin O'Connor1f2c3072009-05-06 23:35:59 -040082// vgafonts.c
83extern u8 vgafont8[];
84extern u8 vgafont14[];
85extern u8 vgafont16[];
86extern u8 vgafont14alt[];
87extern u8 vgafont16alt[];
88
Kevin O'Connordab0a742013-12-03 11:50:49 -050089// vgainit.c
90extern struct VideoSavePointer_s video_save_pointer_table;
91
Kevin O'Connore1e000b2011-12-31 03:30:40 -050092// vgabios.c
Kevin O'Connor8cf8f8e2012-01-16 19:05:27 -050093extern int VgaBDF;
Kevin O'Connorcfd7ef92012-02-02 22:52:17 -050094extern int HaveRunInit;
Kevin O'Connorf3760372011-12-23 22:41:08 -050095#define SET_VGA(var, val) SET_FARVAR(get_global_seg(), (var), (val))
Kevin O'Connor09262412009-05-25 11:44:11 -040096struct carattr {
Kevin O'Connor6ee837b2012-02-13 20:09:02 -050097 u8 car, attr, use_attr, pad;
Kevin O'Connor09262412009-05-25 11:44:11 -040098};
Kevin O'Connor918b1562009-05-25 11:05:18 -040099struct cursorpos {
Kevin O'Connor6ee837b2012-02-13 20:09:02 -0500100 u8 x, y, page, pad;
Kevin O'Connor918b1562009-05-25 11:05:18 -0400101};
Kevin O'Connor3876b532012-01-24 00:07:44 -0500102int vga_bpp(struct vgamode_s *vmode_g);
Kevin O'Connor83047be2012-01-07 18:27:19 -0500103u16 calc_page_size(u8 memmodel, u16 width, u16 height);
Kevin O'Connor20dc4192014-02-05 20:52:25 -0500104int bda_save_restore(int cmd, u16 seg, void *data);
Kevin O'Connor4a73f932012-01-21 11:08:35 -0500105struct vgamode_s *get_current_mode(void);
Kevin O'Connore6bc4c12012-01-21 11:26:37 -0500106int vga_set_mode(int mode, int flags);
Kevin O'Connorc0c7df62009-05-17 18:11:33 -0400107
108// vgafb.c
Kevin O'Connor7c790292014-02-11 15:34:58 -0500109void init_gfx_op(struct gfx_op *op, struct vgamode_s *vmode_g);
110void handle_gfx_op(struct gfx_op *op);
Kevin O'Connora02d4182014-04-05 22:48:05 -0400111void *text_address(struct cursorpos cp);
Kevin O'Connor7fd2af62014-03-20 21:16:28 -0400112void vgafb_move_chars(struct vgamode_s *vmode_g, struct cursorpos dest
113 , struct cursorpos src, struct cursorpos movesize);
114void vgafb_clear_chars(struct vgamode_s *vmode_g, struct cursorpos dest
115 , struct carattr ca, struct cursorpos movesize);
Kevin O'Connord3b38152009-05-26 00:05:37 -0400116void vgafb_write_char(struct cursorpos cp, struct carattr ca);
117struct carattr vgafb_read_char(struct cursorpos cp);
Kevin O'Connor227a2bb2009-05-31 22:00:20 -0400118void vgafb_write_pixel(u8 color, u16 x, u16 y);
119u8 vgafb_read_pixel(u16 x, u16 y);
Kevin O'Connorc0c7df62009-05-17 18:11:33 -0400120
Julian Pidancet87879e22011-12-19 05:08:00 +0000121// vbe.c
Kevin O'Connor31f67ae2012-01-29 11:37:01 -0500122extern u32 VBE_total_memory;
123extern u32 VBE_capabilities;
124extern u32 VBE_framebuffer;
125extern u16 VBE_win_granularity;
Julian Pidancet87879e22011-12-19 05:08:00 +0000126#define VBE_OEM_STRING "SeaBIOS VBE(C) 2011"
127#define VBE_VENDOR_STRING "SeaBIOS Developers"
128#define VBE_PRODUCT_STRING "SeaBIOS VBE Adapter"
129#define VBE_REVISION_STRING "Rev. 1"
Kevin O'Connor40401952011-12-31 03:43:12 -0500130struct bregs;
131void handle_104f(struct bregs *regs);
132
Kevin O'Connore1e000b2011-12-31 03:30:40 -0500133#endif // vgabios.h