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[u-boot] / include / vbe.h
1 /******************************************************************************
2  * Copyright (c) 2004, 2008 IBM Corporation
3  * Copyright (c) 2009 Pattrick Hueper <phueper@hueper.net>
4  * All rights reserved.
5  *
6  * SPDX-License-Identifier:     BSD-2-Clause
7  *
8  * Contributors:
9  *     IBM Corporation - initial implementation
10  *****************************************************************************/
11 #ifndef _VBE_H
12 #define _VBE_H
13
14 /* these structs are for input from and output to OF */
15 struct __packed screen_info {
16         u8 display_type;        /* 0=NONE, 1= analog, 2=digital */
17         u16 screen_width;
18         u16 screen_height;
19         /* bytes per line in framebuffer, may be more than screen_width */
20         u16 screen_linebytes;
21         u8 color_depth; /* color depth in bits per pixel */
22         u32 framebuffer_address;
23         u8 edid_block_zero[128];
24 };
25
26 struct __packed screen_info_input {
27         u8 signature[4];
28         u16 size_reserved;
29         u8 monitor_number;
30         u16 max_screen_width;
31         u8 color_depth;
32 };
33
34 /* these structs only store the required a subset of the VBE-defined fields */
35 struct __packed vbe_info {
36         char signature[4];
37         u16 version;
38         u8 *oem_string_ptr;
39         u32 capabilities;
40         u16 video_mode_list[256];
41         u16 total_memory;
42 };
43
44 struct __packed vesa_mode_info {
45         u16 mode_attributes;    /* 00 */
46         u8 win_a_attributes;    /* 02 */
47         u8 win_b_attributes;    /* 03 */
48         u16 win_granularity;    /* 04 */
49         u16 win_size;           /* 06 */
50         u16 win_a_segment;      /* 08 */
51         u16 win_b_segment;      /* 0a */
52         u32 win_func_ptr;       /* 0c */
53         u16 bytes_per_scanline; /* 10 */
54         u16 x_resolution;       /* 12 */
55         u16 y_resolution;       /* 14 */
56         u8 x_charsize;          /* 16 */
57         u8 y_charsize;          /* 17 */
58         u8 number_of_planes;    /* 18 */
59         u8 bits_per_pixel;      /* 19 */
60         u8 number_of_banks;     /* 20 */
61         u8 memory_model;        /* 21 */
62         u8 bank_size;           /* 22 */
63         u8 number_of_image_pages; /* 23 */
64         u8 reserved_page;
65         u8 red_mask_size;
66         u8 red_mask_pos;
67         u8 green_mask_size;
68         u8 green_mask_pos;
69         u8 blue_mask_size;
70         u8 blue_mask_pos;
71         u8 reserved_mask_size;
72         u8 reserved_mask_pos;
73         u8 direct_color_mode_info;
74         u32 phys_base_ptr;
75         u32 offscreen_mem_offset;
76         u16 offscreen_mem_size;
77         u8 reserved[206];
78 };
79
80 struct vbe_mode_info {
81         u16 video_mode;
82         bool valid;
83         union {
84                 struct vesa_mode_info vesa;
85                 u8 mode_info_block[256];
86         };
87 };
88
89 struct vbe_ddc_info {
90         u8 port_number; /* i.e. monitor number */
91         u8 edid_transfer_time;
92         u8 ddc_level;
93         u8 edid_block_zero[128];
94 };
95
96 #define VESA_GET_INFO           0x4f00
97 #define VESA_GET_MODE_INFO      0x4f01
98 #define VESA_SET_MODE           0x4f02
99
100 struct graphic_device;
101 int vbe_get_video_info(struct graphic_device *gdev);
102
103 #endif