#include "types.h" // u8
#include "farptr.h" // struct segoff_s
-/*
- *
- * VGA registers
- *
- */
-#define VGAREG_ACTL_ADDRESS 0x3c0
-#define VGAREG_ACTL_WRITE_DATA 0x3c0
-#define VGAREG_ACTL_READ_DATA 0x3c1
-
-#define VGAREG_INPUT_STATUS 0x3c2
-#define VGAREG_WRITE_MISC_OUTPUT 0x3c2
-#define VGAREG_VIDEO_ENABLE 0x3c3
-#define VGAREG_SEQU_ADDRESS 0x3c4
-#define VGAREG_SEQU_DATA 0x3c5
-
-#define VGAREG_PEL_MASK 0x3c6
-#define VGAREG_DAC_STATE 0x3c7
-#define VGAREG_DAC_READ_ADDRESS 0x3c7
-#define VGAREG_DAC_WRITE_ADDRESS 0x3c8
-#define VGAREG_DAC_DATA 0x3c9
-
-#define VGAREG_READ_FEATURE_CTL 0x3ca
-#define VGAREG_READ_MISC_OUTPUT 0x3cc
-
-#define VGAREG_GRDC_ADDRESS 0x3ce
-#define VGAREG_GRDC_DATA 0x3cf
-
-#define VGAREG_MDA_CRTC_ADDRESS 0x3b4
-#define VGAREG_MDA_CRTC_DATA 0x3b5
-#define VGAREG_VGA_CRTC_ADDRESS 0x3d4
-#define VGAREG_VGA_CRTC_DATA 0x3d5
-
-#define VGAREG_MDA_WRITE_FEATURE_CTL 0x3ba
-#define VGAREG_VGA_WRITE_FEATURE_CTL 0x3da
-#define VGAREG_ACTL_RESET 0x3da
-
-#define VGAREG_MDA_MODECTL 0x3b8
-#define VGAREG_CGA_MODECTL 0x3d8
-#define VGAREG_CGA_PALETTE 0x3d9
-
-/* Video memory */
-#define SEG_GRAPH 0xA000
-#define SEG_CTEXT 0xB800
-#define SEG_MTEXT 0xB000
-
-/*
- * Tables of default values for each mode
- */
-#define TEXT 0x80
-
-#define CTEXT (0x00 | TEXT)
-#define MTEXT (0x01 | TEXT)
-#define CGA 0x02
-#define PLANAR1 0x03
-#define PLANAR4 0x04
-#define LINEAR8 0x05
-
-// for SVGA
-#define LINEAR15 0x10
-#define LINEAR16 0x11
-#define LINEAR24 0x12
-#define LINEAR32 0x13
-
-#define SCREEN_IO_START(x,y,p) (((((x)*(y)) | 0x00ff) + 1) * (p))
-#define SCREEN_MEM_START(x,y,p) SCREEN_IO_START(((x)*2),(y),(p))
-
-struct vgamode_s {
- u8 svgamode;
- u8 memmodel; /* CTEXT,MTEXT,CGA,PL1,PL2,PL4,P8,P15,P16,P24,P32 */
+// standard BIOS Video Parameter Table
+struct VideoParam_s {
u8 twidth;
- u8 theight;
+ u8 theightm1;
u8 cheight;
- u8 pixbits;
- u16 sstart;
u16 slength;
-
- u8 pelmask;
- u8 *dac;
- u16 dacsize;
- u8 *sequ_regs;
- u8 miscreg;
- u8 *crtc_regs;
- u8 *actl_regs;
- u8 *grdc_regs;
-};
-
-struct saveVideoHardware {
- u8 sequ_index;
- u8 crtc_index;
- u8 grdc_index;
- u8 actl_index;
- u8 feature;
u8 sequ_regs[4];
- u8 sequ0;
+ u8 miscreg;
u8 crtc_regs[25];
u8 actl_regs[20];
u8 grdc_regs[9];
- u16 crtc_addr;
- u8 plane_latch[4];
-};
+} PACKED;
+
+extern struct VideoParam_s video_param_table[29];
struct saveBDAstate {
u8 video_mode;
struct segoff_s font1;
};
-struct saveDACcolors {
- u8 rwmode;
- u8 peladdr;
- u8 pelmask;
- u8 dac[768];
- u8 color_select;
-};
+// Mode flags
+#define MF_GRAYSUM 0x0002
+#define MF_NOPALETTE 0x0008
+#define MF_CUSTOMCRTC 0x0800
+#define MF_LINEARFB 0x4000
+#define MF_NOCLEARMEM 0x8000
+
+// Memory model types
+#define MM_TEXT 0x00
+#define MM_CGA 0x01
+#define MM_HERCULES 0x02
+#define MM_PLANAR 0x03
+#define MM_PACKED 0x04
+#define MM_NON_CHAIN_4_256 0x05
+#define MM_DIRECT 0x06
+#define MM_YUV 0x07
-// vgatables.c
-struct vgamode_s *find_vga_entry(u8 mode);
-void build_video_param(void);
-extern struct VideoSavePointer_s video_save_pointer_table;
-extern u8 static_functionality[];
+struct vgamode_s {
+ u8 memmodel;
+ u16 width;
+ u16 height;
+ u8 depth;
+ u8 cwidth;
+ u8 cheight;
+ u16 sstart;
+};
// vgafonts.c
extern u8 vgafont8[];
extern u8 vgafont16alt[];
// vgabios.c
+extern int VgaBDF;
#define SET_VGA(var, val) SET_FARVAR(get_global_seg(), (var), (val))
struct carattr {
u8 car, attr, use_attr;
struct cursorpos {
u8 x, y, page;
};
-void vga_set_mode(u8 mode, u8 noclearmem);
+u16 calc_page_size(u8 memmodel, u16 width, u16 height);
+struct vgamode_s *get_current_mode(void);
+void modeswitch_set_bda(int mode, int flags, struct vgamode_s *vmode_g);
// vgafb.c
-void clear_screen(struct vgamode_s *vmode_g);
void vgafb_scroll(int nblines, int attr
, struct cursorpos ul, struct cursorpos lr);
void vgafb_write_char(struct cursorpos cp, struct carattr ca);
struct carattr vgafb_read_char(struct cursorpos cp);
void vgafb_write_pixel(u8 color, u16 x, u16 y);
u8 vgafb_read_pixel(u16 x, u16 y);
-void vgafb_load_font(u16 seg, void *src_far, u16 count
- , u16 start, u8 destflags, u8 fontsize);
-
-// vgaio.c
-void vgahw_screen_disable(void);
-void vgahw_screen_enable(void);
-void vgahw_set_border_color(u8 color);
-void vgahw_set_overscan_border_color(u8 color);
-u8 vgahw_get_overscan_border_color(void);
-void vgahw_set_palette(u8 palid);
-void vgahw_set_single_palette_reg(u8 reg, u8 val);
-u8 vgahw_get_single_palette_reg(u8 reg);
-void vgahw_set_all_palette_reg(u16 seg, u8 *data_far);
-void vgahw_get_all_palette_reg(u16 seg, u8 *data_far);
-void vgahw_toggle_intensity(u8 flag);
-void vgahw_select_video_dac_color_page(u8 flag, u8 data);
-void vgahw_read_video_dac_state(u8 *pmode, u8 *curpage);
-void vgahw_set_dac_regs(u16 seg, u8 *data_far, u8 start, int count);
-void vgahw_get_dac_regs(u16 seg, u8 *data_far, u8 start, int count);
-void vgahw_set_pel_mask(u8 val);
-u8 vgahw_get_pel_mask(void);
-void vgahw_save_dac_state(u16 seg, struct saveDACcolors *info);
-void vgahw_restore_dac_state(u16 seg, struct saveDACcolors *info);
-void vgahw_sequ_write(u8 index, u8 value);
-void vgahw_grdc_write(u8 index, u8 value);
-void vgahw_set_text_block_specifier(u8 spec);
-void get_font_access(void);
-void release_font_access(void);
-void vgahw_set_cursor_shape(u8 start, u8 end);
-void vgahw_set_active_page(u16 address);
-void vgahw_set_cursor_pos(u16 address);
-void vgahw_set_scan_lines(u8 lines);
-u16 vgahw_get_vde(void);
-void vgahw_save_state(u16 seg, struct saveVideoHardware *info);
-void vgahw_restore_state(u16 seg, struct saveVideoHardware *info);
-void vgahw_set_mode(struct vgamode_s *vmode_g);
-void vgahw_enable_video_addressing(u8 disable);
-void vgahw_init(void);
-
-// clext.c
-int cirrus_set_video_mode(u8 mode, u8 noclearmem);
-void cirrus_init(void);
// vbe.c
+u32 VBE_total_memory;
+u32 VBE_capabilities;
+u32 VBE_framebuffer;
+u16 VBE_win_granularity;
#define VBE_OEM_STRING "SeaBIOS VBE(C) 2011"
#define VBE_VENDOR_STRING "SeaBIOS Developers"
#define VBE_PRODUCT_STRING "SeaBIOS VBE Adapter"
#define VBE_REVISION_STRING "Rev. 1"
-
-struct vbe_modeinfo
-{
- u16 width;
- u16 height;
- u8 depth;
- u16 linesize;
- u32 phys_base;
- u32 vram_size;
-};
+struct bregs;
+void handle_104f(struct bregs *regs);
#endif // vgabios.h
projects / seabios.git / blobdiff