6 #define VBE_ATTR_LFB (1 << 7)
7 #define VBE_MODE_LFB (1 << 14)
13 uint8_t caps[4]; /* capabilities */
14 uint32_t vid_mode_ptr; /* vbefarptr to video mode list */
15 uint16_t total_mem; /* num of 64k mem blocks */
16 uint16_t oem_sw_rev; /* VBE implementation software revision */
17 uint32_t oem_vendor_name_ptr;
18 uint32_t oem_product_name_ptr;
19 uint32_t oem_product_rev_ptr;
20 uint8_t reserved[222];
21 uint8_t oem_data[256];
22 } __attribute__((packed));
24 struct vbe_mode_info {
26 uint8_t wina_attr, winb_attr;
27 uint16_t win_gran, win_size;
28 uint16_t wina_seg, winb_seg;
30 uint16_t scanline_bytes;
32 /* VBE 1.2 and above */
34 uint8_t xcharsz, ycharsz;
39 uint8_t bank_size; /* bank size in KB */
40 uint8_t num_img_pages;
43 /* direct color fields */
44 uint8_t rmask_size, rpos;
45 uint8_t gmask_size, gpos;
46 uint8_t bmask_size, bpos;
47 uint8_t xmask_size, xpos;
48 uint8_t cmode_info; /* direct color mode attributes */
50 /* VBE 2.0 and above */
51 uint32_t fb_addr; /* physical address of the linear framebuffer */
55 uint8_t reserved4[206];
56 } __attribute__((packed));
58 struct vbe_info *vbe_get_info(void);
59 struct vbe_mode_info *vbe_get_mode_info(int mode);
61 int vbe_set_mode(int mode);
63 void print_mode_info(struct vbe_mode_info *modei);