LXR uboot/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 */
  15struct __packed vbe_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
  26struct __packed vbe_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 */
  35struct __packed vbe_info {
  36        char signature[4];
  37        u16 version;
  38        u32 oem_string_ptr;
  39        u32 capabilities;
  40        u32 modes_ptr;
  41        u16 total_memory;
  42        u16 oem_version;
  43        u32 vendor_name_ptr;
  44        u32 product_name_ptr;
  45        u32 product_rev_ptr;
  46};
  47
  48struct __packed vesa_mode_info {
  49        u16 mode_attributes;    /* 00 */
  50        u8 win_a_attributes;    /* 02 */
  51        u8 win_b_attributes;    /* 03 */
  52        u16 win_granularity;    /* 04 */
  53        u16 win_size;           /* 06 */
  54        u16 win_a_segment;      /* 08 */
  55        u16 win_b_segment;      /* 0a */
  56        u32 win_func_ptr;       /* 0c */
  57        u16 bytes_per_scanline; /* 10 */
  58        u16 x_resolution;       /* 12 */
  59        u16 y_resolution;       /* 14 */
  60        u8 x_charsize;          /* 16 */
  61        u8 y_charsize;          /* 17 */
  62        u8 number_of_planes;    /* 18 */
  63        u8 bits_per_pixel;      /* 19 */
  64        u8 number_of_banks;     /* 20 */
  65        u8 memory_model;        /* 21 */
  66        u8 bank_size;           /* 22 */
  67        u8 number_of_image_pages; /* 23 */
  68        u8 reserved_page;
  69        u8 red_mask_size;
  70        u8 red_mask_pos;
  71        u8 green_mask_size;
  72        u8 green_mask_pos;
  73        u8 blue_mask_size;
  74        u8 blue_mask_pos;
  75        u8 reserved_mask_size;
  76        u8 reserved_mask_pos;
  77        u8 direct_color_mode_info;
  78        u32 phys_base_ptr;
  79        u32 offscreen_mem_offset;
  80        u16 offscreen_mem_size;
  81        u8 reserved[206];
  82};
  83
  84struct vbe_mode_info {
  85        u16 video_mode;
  86        bool valid;
  87        union {
  88                struct vesa_mode_info vesa;
  89                u8 mode_info_block[256];
  90        };
  91};
  92
  93struct vbe_ddc_info {
  94        u8 port_number; /* i.e. monitor number */
  95        u8 edid_transfer_time;
  96        u8 ddc_level;
  97        u8 edid_block_zero[128];
  98};
  99
 100#define VESA_GET_INFO           0x4f00
 101#define VESA_GET_MODE_INFO      0x4f01
 102#define VESA_SET_MODE           0x4f02
 103#define VESA_GET_CUR_MODE       0x4f03
 104
 105extern struct vbe_mode_info mode_info;
 106
 107struct graphic_device;
 108int vbe_get_video_info(struct graphic_device *gdev);
 109
 110#endif
 111