e087db510c
struct screen_info has unaligned members, it needs to be packed. In the process, fix the naming of some of the members, which don't belong in this structure but are part of it anyway. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
#ifndef _SCREEN_INFO_H
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#define _SCREEN_INFO_H
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#include <linux/types.h>
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/*
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* These are set up by the setup-routine at boot-time:
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*/
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struct screen_info {
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u8 orig_x; /* 0x00 */
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u8 orig_y; /* 0x01 */
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u16 ext_mem_k; /* 0x02 */
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u16 orig_video_page; /* 0x04 */
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u8 orig_video_mode; /* 0x06 */
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u8 orig_video_cols; /* 0x07 */
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u16 unused2; /* 0x08 */
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u16 orig_video_ega_bx; /* 0x0a */
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u16 unused3; /* 0x0c */
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u8 orig_video_lines; /* 0x0e */
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u8 orig_video_isVGA; /* 0x0f */
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u16 orig_video_points; /* 0x10 */
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/* VESA graphic mode -- linear frame buffer */
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u16 lfb_width; /* 0x12 */
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u16 lfb_height; /* 0x14 */
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u16 lfb_depth; /* 0x16 */
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u32 lfb_base; /* 0x18 */
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u32 lfb_size; /* 0x1c */
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u16 cl_magic, cl_offset; /* 0x20 */
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u16 lfb_linelength; /* 0x24 */
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u8 red_size; /* 0x26 */
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u8 red_pos; /* 0x27 */
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u8 green_size; /* 0x28 */
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u8 green_pos; /* 0x29 */
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u8 blue_size; /* 0x2a */
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u8 blue_pos; /* 0x2b */
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u8 rsvd_size; /* 0x2c */
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u8 rsvd_pos; /* 0x2d */
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u16 vesapm_seg; /* 0x2e */
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u16 vesapm_off; /* 0x30 */
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u16 pages; /* 0x32 */
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u16 vesa_attributes; /* 0x34 */
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u32 capabilities; /* 0x36 */
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u8 _reserved[6]; /* 0x3a */
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} __attribute__((packed));
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extern struct screen_info screen_info;
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#define ORIG_X (screen_info.orig_x)
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#define ORIG_Y (screen_info.orig_y)
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#define ORIG_VIDEO_MODE (screen_info.orig_video_mode)
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#define ORIG_VIDEO_COLS (screen_info.orig_video_cols)
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#define ORIG_VIDEO_EGA_BX (screen_info.orig_video_ega_bx)
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#define ORIG_VIDEO_LINES (screen_info.orig_video_lines)
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#define ORIG_VIDEO_ISVGA (screen_info.orig_video_isVGA)
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#define ORIG_VIDEO_POINTS (screen_info.orig_video_points)
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#define VIDEO_TYPE_MDA 0x10 /* Monochrome Text Display */
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#define VIDEO_TYPE_CGA 0x11 /* CGA Display */
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#define VIDEO_TYPE_EGAM 0x20 /* EGA/VGA in Monochrome Mode */
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#define VIDEO_TYPE_EGAC 0x21 /* EGA in Color Mode */
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#define VIDEO_TYPE_VGAC 0x22 /* VGA+ in Color Mode */
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#define VIDEO_TYPE_VLFB 0x23 /* VESA VGA in graphic mode */
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#define VIDEO_TYPE_PICA_S3 0x30 /* ACER PICA-61 local S3 video */
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#define VIDEO_TYPE_MIPS_G364 0x31 /* MIPS Magnum 4000 G364 video */
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#define VIDEO_TYPE_SGI 0x33 /* Various SGI graphics hardware */
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#define VIDEO_TYPE_TGAC 0x40 /* DEC TGA */
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#define VIDEO_TYPE_SUN 0x50 /* Sun frame buffer. */
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#define VIDEO_TYPE_SUNPCI 0x51 /* Sun PCI based frame buffer. */
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#define VIDEO_TYPE_PMAC 0x60 /* PowerMacintosh frame buffer. */
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#endif /* _SCREEN_INFO_H */
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