/* SPDX-License-Identifier: GPL-2.0-or-later */ /* ----------------------------------------------------------------------- * * * Copyright 1999-2007 H. Peter Anvin - All Rights Reserved * * ----------------------------------------------------------------------- */ #ifndef BOOT_VESA_H #define BOOT_VESA_H typedef struct { u16 off, seg; } far_ptr; /* VESA General Information table */ struct vesa_general_info { u32 signature; /* 0 Magic number = "VESA" */ u16 version; /* 4 */ far_ptr vendor_string; /* 6 */ u32 capabilities; /* 10 */ far_ptr video_mode_ptr; /* 14 */ u16 total_memory; /* 18 */ u8 reserved[236]; /* 20 */ } __attribute__ ((packed)); #define VESA_MAGIC ('V' + ('E' << 8) + ('S' << 16) + ('A' << 24)) struct vesa_mode_info { u16 mode_attr; /* 0 */ u8 win_attr[2]; /* 2 */ u16 win_grain; /* 4 */ u16 win_size; /* 6 */ u16 win_seg[2]; /* 8 */ far_ptr win_scheme; /* 12 */ u16 logical_scan; /* 16 */ u16 h_res; /* 18 */ u16 v_res; /* 20 */ u8 char_width; /* 22 */ u8 char_height; /* 23 */ u8 memory_planes; /* 24 */ u8 bpp; /* 25 */ u8 banks; /* 26 */ u8 memory_layout; /* 27 */ u8 bank_size; /* 28 */ u8 image_planes; /* 29 */ u8 page_function; /* 30 */ u8 rmask; /* 31 */ u8 rpos; /* 32 */ u8 gmask; /* 33 */ u8 gpos; /* 34 */ u8 bmask; /* 35 */ u8 bpos; /* 36 */ u8 resv_mask; /* 37 */ u8 resv_pos; /* 38 */ u8 dcm_info; /* 39 */ u32 lfb_ptr; /* 40 Linear frame buffer address */ u32 offscreen_ptr; /* 44 Offscreen memory address */ u16 offscreen_size; /* 48 */ u8 reserved[206]; /* 50 */ } __attribute__ ((packed)); #endif /* LIB_SYS_VESA_H */