screen_info.h 2.7 KB

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  1. #ifndef _SCREEN_INFO_H
  2. #define _SCREEN_INFO_H
  3. #include <linux/types.h>
  4. /*
  5. * These are set up by the setup-routine at boot-time:
  6. */
  7. struct screen_info {
  8. __u8 orig_x; /* 0x00 */
  9. __u8 orig_y; /* 0x01 */
  10. __u16 ext_mem_k; /* 0x02 */
  11. __u16 orig_video_page; /* 0x04 */
  12. __u8 orig_video_mode; /* 0x06 */
  13. __u8 orig_video_cols; /* 0x07 */
  14. __u8 flags; /* 0x08 */
  15. __u8 unused2; /* 0x09 */
  16. __u16 orig_video_ega_bx;/* 0x0a */
  17. __u16 unused3; /* 0x0c */
  18. __u8 orig_video_lines; /* 0x0e */
  19. __u8 orig_video_isVGA; /* 0x0f */
  20. __u16 orig_video_points;/* 0x10 */
  21. /* VESA graphic mode -- linear frame buffer */
  22. __u16 lfb_width; /* 0x12 */
  23. __u16 lfb_height; /* 0x14 */
  24. __u16 lfb_depth; /* 0x16 */
  25. __u32 lfb_base; /* 0x18 */
  26. __u32 lfb_size; /* 0x1c */
  27. __u16 cl_magic, cl_offset; /* 0x20 */
  28. __u16 lfb_linelength; /* 0x24 */
  29. __u8 red_size; /* 0x26 */
  30. __u8 red_pos; /* 0x27 */
  31. __u8 green_size; /* 0x28 */
  32. __u8 green_pos; /* 0x29 */
  33. __u8 blue_size; /* 0x2a */
  34. __u8 blue_pos; /* 0x2b */
  35. __u8 rsvd_size; /* 0x2c */
  36. __u8 rsvd_pos; /* 0x2d */
  37. __u16 vesapm_seg; /* 0x2e */
  38. __u16 vesapm_off; /* 0x30 */
  39. __u16 pages; /* 0x32 */
  40. __u16 vesa_attributes; /* 0x34 */
  41. __u32 capabilities; /* 0x36 */
  42. __u8 _reserved[6]; /* 0x3a */
  43. } __attribute__((packed));
  44. #define VIDEO_TYPE_MDA 0x10 /* Monochrome Text Display */
  45. #define VIDEO_TYPE_CGA 0x11 /* CGA Display */
  46. #define VIDEO_TYPE_EGAM 0x20 /* EGA/VGA in Monochrome Mode */
  47. #define VIDEO_TYPE_EGAC 0x21 /* EGA in Color Mode */
  48. #define VIDEO_TYPE_VGAC 0x22 /* VGA+ in Color Mode */
  49. #define VIDEO_TYPE_VLFB 0x23 /* VESA VGA in graphic mode */
  50. #define VIDEO_TYPE_PICA_S3 0x30 /* ACER PICA-61 local S3 video */
  51. #define VIDEO_TYPE_MIPS_G364 0x31 /* MIPS Magnum 4000 G364 video */
  52. #define VIDEO_TYPE_SGI 0x33 /* Various SGI graphics hardware */
  53. #define VIDEO_TYPE_TGAC 0x40 /* DEC TGA */
  54. #define VIDEO_TYPE_SUN 0x50 /* Sun frame buffer. */
  55. #define VIDEO_TYPE_SUNPCI 0x51 /* Sun PCI based frame buffer. */
  56. #define VIDEO_TYPE_PMAC 0x60 /* PowerMacintosh frame buffer. */
  57. #define VIDEO_TYPE_EFI 0x70 /* EFI graphic mode */
  58. #define VIDEO_FLAGS_NOCURSOR (1 << 0) /* The video mode has no cursor set */
  59. #ifdef __KERNEL__
  60. extern struct screen_info screen_info;
  61. #define ORIG_X (screen_info.orig_x)
  62. #define ORIG_Y (screen_info.orig_y)
  63. #define ORIG_VIDEO_MODE (screen_info.orig_video_mode)
  64. #define ORIG_VIDEO_COLS (screen_info.orig_video_cols)
  65. #define ORIG_VIDEO_EGA_BX (screen_info.orig_video_ega_bx)
  66. #define ORIG_VIDEO_LINES (screen_info.orig_video_lines)
  67. #define ORIG_VIDEO_ISVGA (screen_info.orig_video_isVGA)
  68. #define ORIG_VIDEO_POINTS (screen_info.orig_video_points)
  69. #endif /* __KERNEL__ */
  70. #endif /* _SCREEN_INFO_H */