screen_info.h

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#ifndef _UAPI_SCREEN_INFO_H
#define _UAPI_SCREEN_INFO_H

#include <linux/types.h>

/*
 * These are set up by the setup-routine at boot-time:
 */

struct screen_info {
    __u8  orig_x;       /* 0x00 */
    __u8  orig_y;       /* 0x01 */
    __u16 ext_mem_k;    /* 0x02 */
    __u16 orig_video_page;  /* 0x04 */
    __u8  orig_video_mode;  /* 0x06 */
    __u8  orig_video_cols;  /* 0x07 */
    __u8  flags;        /* 0x08 */
    __u8  unused2;      /* 0x09 */
    __u16 orig_video_ega_bx;/* 0x0a */
    __u16 unused3;      /* 0x0c */
    __u8  orig_video_lines; /* 0x0e */
    __u8  orig_video_isVGA; /* 0x0f */
    __u16 orig_video_points;/* 0x10 */

    /* VESA graphic mode -- linear frame buffer */
    __u16 lfb_width;    /* 0x12 */
    __u16 lfb_height;   /* 0x14 */
    __u16 lfb_depth;    /* 0x16 */
    __u32 lfb_base;     /* 0x18 */
    __u32 lfb_size;     /* 0x1c */
    __u16 cl_magic, cl_offset; /* 0x20 */
    __u16 lfb_linelength;   /* 0x24 */
    __u8  red_size;     /* 0x26 */
    __u8  red_pos;      /* 0x27 */
    __u8  green_size;   /* 0x28 */
    __u8  green_pos;    /* 0x29 */
    __u8  blue_size;    /* 0x2a */
    __u8  blue_pos;     /* 0x2b */
    __u8  rsvd_size;    /* 0x2c */
    __u8  rsvd_pos;     /* 0x2d */
    __u16 vesapm_seg;   /* 0x2e */
    __u16 vesapm_off;   /* 0x30 */
    __u16 pages;        /* 0x32 */
    __u16 vesa_attributes;  /* 0x34 */
    __u32 capabilities;     /* 0x36 */
    __u8  _reserved[6]; /* 0x3a */
} __attribute__((packed));

#define VIDEO_TYPE_MDA      0x10    /* Monochrome Text Display  */
#define VIDEO_TYPE_CGA      0x11    /* CGA Display          */
#define VIDEO_TYPE_EGAM     0x20    /* EGA/VGA in Monochrome Mode   */
#define VIDEO_TYPE_EGAC     0x21    /* EGA in Color Mode        */
#define VIDEO_TYPE_VGAC     0x22    /* VGA+ in Color Mode       */
#define VIDEO_TYPE_VLFB     0x23    /* VESA VGA in graphic mode */

#define VIDEO_TYPE_PICA_S3  0x30    /* ACER PICA-61 local S3 video  */
#define VIDEO_TYPE_MIPS_G364    0x31    /* MIPS Magnum 4000 G364 video  */
#define VIDEO_TYPE_SGI          0x33    /* Various SGI graphics hardware */

#define VIDEO_TYPE_TGAC     0x40    /* DEC TGA */

#define VIDEO_TYPE_SUN          0x50    /* Sun frame buffer. */
#define VIDEO_TYPE_SUNPCI       0x51    /* Sun PCI based frame buffer. */

#define VIDEO_TYPE_PMAC     0x60    /* PowerMacintosh frame buffer. */

#define VIDEO_TYPE_EFI      0x70    /* EFI graphic mode     */

#define VIDEO_FLAGS_NOCURSOR    (1 << 0) /* The video mode has no cursor set */

#define VIDEO_CAPABILITY_SKIP_QUIRKS    (1 << 0)


#endif /* _UAPI_SCREEN_INFO_H */