/****************************************************************************** * Copyright (c) 2004, 2008 IBM Corporation * Copyright (c) 2009 Pattrick Hueper <phueper@hueper.net> * All rights reserved. * This program and the accompanying materials * are made available under the terms of the BSD License * which accompanies this distribution, and is available at * http://www.opensource.org/licenses/bsd-license.php * * Contributors: * IBM Corporation - initial implementation *****************************************************************************/ #ifndef VBE_H #define VBE_H #include <stdint.h> // these structs are for input from and output to OF typedef struct { u8 display_type; // 0 = NONE, 1 = analog, 2 = digital u16 screen_width; u16 screen_height; u16 screen_linebytes; // bytes per line in framebuffer, may be more // than screen_width u8 color_depth; // color depth in bits per pixel u32 framebuffer_address; u8 edid_block_zero[128]; } __packed screen_info_t; typedef struct { u8 signature[4]; u16 size_reserved; u8 monitor_number; u16 max_screen_width; u8 color_depth; } __packed screen_info_input_t; typedef struct { u16 mode_attributes; // 00 u8 win_a_attributes; // 02 u8 win_b_attributes; // 03 u16 win_granularity; // 04 u16 win_size; // 06 u16 win_a_segment; // 08 u16 win_b_segment; // 0a u32 win_func_ptr; // 0c u16 bytes_per_scanline; // 10 u16 x_resolution; // 12 u16 y_resolution; // 14 u8 x_charsize; // 16 u8 y_charsize; // 17 u8 number_of_planes; // 18 u8 bits_per_pixel; // 19 u8 number_of_banks; // 20 u8 memory_model; // 21 u8 bank_size; // 22 u8 number_of_image_pages; // 23 u8 reserved_page; u8 red_mask_size; u8 red_mask_pos; u8 green_mask_size; u8 green_mask_pos; u8 blue_mask_size; u8 blue_mask_pos; u8 reserved_mask_size; u8 reserved_mask_pos; u8 direct_color_mode_info; u32 phys_base_ptr; u32 offscreen_mem_offset; u16 offscreen_mem_size; u8 reserved[206]; } __packed vesa_mode_info_t; typedef struct { u16 video_mode; union { vesa_mode_info_t vesa; u8 mode_info_block[256]; }; // our crap //u16 attributes; //u16 linebytes; //u16 x_resolution; //u16 y_resolution; //u8 x_charsize; //u8 y_charsize; //u8 bits_per_pixel; //u8 memory_model; //u32 framebuffer_address; } vbe_mode_info_t; typedef struct { u8 port_number; // i.e. monitor number u8 edid_transfer_time; u8 ddc_level; u8 edid_block_zero[128]; } vbe_ddc_info_t; #define VESA_GET_INFO 0x4f00 #define VESA_GET_MODE_INFO 0x4f01 #define VESA_SET_MODE 0x4f02 void vbe_set_graphics(void); void vbe_textmode_console(void); /** * Returns the mode_info struct from the vbe context, * if initialized. NULL on invalid mode_infos. */ const vbe_mode_info_t *vbe_mode_info(void); #endif // VBE_H