src/devices/oprom/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  * This program and the accompanying materials
   6  * are made available under the terms of the BSD License
   7  * which accompanies this distribution, and is available at
   8  * http://www.opensource.org/licenses/bsd-license.php
   9  *
  10  * Contributors:
  11  *     IBM Corporation - initial implementation
  12  *****************************************************************************/
  13
  14 // these structs are for input from and output to OF
  15 typedef struct {
  16         u8 display_type;        // 0=NONE, 1= analog, 2=digital
  17         u16 screen_width;
  18         u16 screen_height;
  19         u16 screen_linebytes;   // bytes per line in framebuffer, may be more than screen_width
  20         u8 color_depth; // color depth in bpp
  21         u32 framebuffer_address;
  22         u8 edid_block_zero[128];
  23 } __attribute__ ((__packed__)) screen_info_t;
  24
  25 typedef struct {
  26         u8 signature[4];
  27         u16 size_reserved;
  28         u8 monitor_number;
  29         u16 max_screen_width;
  30         u8 color_depth;
  31 } __attribute__ ((__packed__)) screen_info_input_t;
  32
  33 // these structs only store a subset of the VBE defined fields
  34 // only those needed.
  35 typedef struct {
  36         char signature[4];
  37         u16 version;
  38         u8 *oem_string_ptr;
  39         u32 capabilities;
  40         u16 video_mode_list[256];       // lets hope we never have more than 256 video modes...
  41         u16 total_memory;
  42 } vbe_info_t;
  43
  44 typedef struct {
  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 } __attribute__ ((__packed__)) vesa_mode_info_t;
  79
  80 typedef struct {
  81         u16 video_mode;
  82         union {
  83                 vesa_mode_info_t vesa;
  84                 u8 mode_info_block[256];
  85         };
  86         // our crap
  87         //u16 attributes;
  88         //u16 linebytes;
  89         //u16 x_resolution;
  90         //u16 y_resolution;
  91         //u8 x_charsize;
  92         //u8 y_charsize;
  93         //u8 bits_per_pixel;
  94         //u8 memory_model;
  95         //u32 framebuffer_address;
  96 } vbe_mode_info_t;
  97
  98 typedef struct {
  99         u8 port_number; // i.e. monitor number
 100         u8 edid_transfer_time;
 101         u8 ddc_level;
 102         u8 edid_block_zero[128];
 103 } vbe_ddc_info_t;
 104
 105 struct lb_framebuffer;
 106
 107 void vbe_set_graphics(void);
 108 void vbe_textmode_console(void);
 109 void fill_lb_framebuffer(struct lb_framebuffer *framebuffer);
 110
 111 #define VESA_GET_INFO           0x4f00
 112 #define VESA_GET_MODE_INFO      0x4f01
 113 #define VESA_SET_MODE           0x4f02
 114