1 files changed, 149 insertions, 0 deletions
diff --git a/qemu/roms/seabios/vgasrc/vgabios.h b/qemu/roms/seabios/vgasrc/vgabios.h
new file mode 100644
index 000000000..fd796f2e6
--- /dev/null
+++ b/qemu/roms/seabios/vgasrc/vgabios.h
@@ -0,0 +1,149 @@
+#ifndef __VGABIOS_H
+#define __VGABIOS_H
+
+#include "config.h" // CONFIG_VGA_EMULATE_TEXT
+#include "types.h" // u8
+#include "farptr.h" // struct segoff_s
+#include "std/vga.h" // struct video_param_s
+
+// Save/Restore flags
+#define SR_HARDWARE   0x0001
+#define SR_BDA        0x0002
+#define SR_DAC        0x0004
+#define SR_REGISTERS  0x0008
+#define SR_SAVE       0x0100
+#define SR_RESTORE    0x0200
+
+// Mode flags
+#define MF_LEGACY     0x0001
+#define MF_GRAYSUM    0x0002
+#define MF_NOPALETTE  0x0008
+#define MF_CUSTOMCRTC 0x0800
+#define MF_LINEARFB   0x4000
+#define MF_NOCLEARMEM 0x8000
+#define MF_VBEFLAGS   0xfe00
+
+// 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
+
+struct vgamode_s {
+    u8 memmodel;
+    u16 width;
+    u16 height;
+    u8 depth;
+    u8 cwidth;
+    u8 cheight;
+    u16 sstart;
+};
+
+// Graphics pixel operations.
+struct gfx_op {
+    struct vgamode_s *vmode_g;
+    u32 linelength;
+    u32 displaystart;
+
+    u8 op;
+    u16 x, y;
+
+    u8 pixels[8];
+    u16 xlen, ylen;
+    u16 srcy;
+};
+
+#define GO_READ8   1
+#define GO_WRITE8  2
+#define GO_MEMSET  3
+#define GO_MEMMOVE 4
+
+// Custom internal storage in BDA
+#define VGA_CUSTOM_BDA 0xb9
+
+struct vga_bda_s {
+    u8 flags;
+    u16 vbe_mode;
+    u16 vgamode_offset;
+} PACKED;
+
+#define BF_PM_MASK      0x0f
+#define BF_EMULATE_TEXT 0x10
+#define BF_SWCURSOR     0x20
+
+#define GET_BDA_EXT(var) \
+    GET_FARVAR(SEG_BDA, ((struct vga_bda_s *)VGA_CUSTOM_BDA)->var)
+#define SET_BDA_EXT(var, val) \
+    SET_FARVAR(SEG_BDA, ((struct vga_bda_s *)VGA_CUSTOM_BDA)->var, (val))
+#define MASK_BDA_EXT(var, off, on)                                      \
+    SET_BDA_EXT(var, (GET_BDA_EXT(var) & ~(off)) | (on))
+
+static inline int vga_emulate_text(void) {
+    return CONFIG_VGA_EMULATE_TEXT && GET_BDA_EXT(flags) & BF_EMULATE_TEXT;
+}
+
+// Debug settings
+#define DEBUG_VGA_POST 1
+#define DEBUG_VGA_10 3
+
+// vgafonts.c
+extern u8 vgafont8[];
+extern u8 vgafont14[];
+extern u8 vgafont16[];
+extern u8 vgafont14alt[];
+extern u8 vgafont16alt[];
+
+// vgainit.c
+extern struct video_save_pointer_s video_save_pointer_table;
+extern struct video_param_s video_param_table[29];
+
+// vgabios.c
+extern int VgaBDF;
+extern int HaveRunInit;
+#define SET_VGA(var, val) SET_FARVAR(get_global_seg(), (var), (val))
+struct carattr {
+    u8 car, attr, use_attr, pad;
+};
+struct cursorpos {
+    u8 x, y, page, pad;
+};
+int vga_bpp(struct vgamode_s *vmode_g);
+u16 calc_page_size(u8 memmodel, u16 width, u16 height);
+u16 get_cursor_shape(void);
+struct cursorpos get_cursor_pos(u8 page);
+int bda_save_restore(int cmd, u16 seg, void *data);
+struct vgamode_s *get_current_mode(void);
+int vga_set_mode(int mode, int flags);
+extern struct video_func_static static_functionality;
+
+// vgafb.c
+void init_gfx_op(struct gfx_op *op, struct vgamode_s *vmode_g);
+void handle_gfx_op(struct gfx_op *op);
+void *text_address(struct cursorpos cp);
+void vgafb_move_chars(struct cursorpos dest
+                      , struct cursorpos src, struct cursorpos movesize);
+void vgafb_clear_chars(struct cursorpos dest
+                       , struct carattr ca, struct cursorpos movesize);
+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_set_swcursor(int enable);
+
+// vbe.c
+extern u32 VBE_total_memory;
+extern u32 VBE_capabilities;
+extern u32 VBE_framebuffer;
+extern 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 bregs;
+void handle_104f(struct bregs *regs);
+
+#endif // vgabios.h