[PATCH] Split out screen_info from tty.h

This makes it possible for boot code to use screen_info without dragging in
all of tty.h.

Signed-off-by: Brian Gerst <bgerst@didntduck.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 77 insertions, 0 deletions

diff --git a/include/linux/screen_info.h b/include/linux/screen_info.h
new file mode 100644
index 000000000000..76850b75b3f6
--- /dev/null
+++ b/include/linux/screen_info.h
@@ -0,0 +1,77 @@
+#ifndef _SCREEN_INFO_H
+#define _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 dontuse1;           /* 0x02 -- EXT_MEM_K sits here */
+        u16 orig_video_page;    /* 0x04 */
+        u8  orig_video_mode;    /* 0x06 */
+        u8  orig_video_cols;    /* 0x07 */
+        u16 unused2;            /* 0x08 */
+        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 dontuse2, dontuse3; /* 0x20 -- CL_MAGIC and CL_OFFSET here */
+        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 */
+                                /* 0x3a -- 0x3f reserved for future expansion */
+};
+
+extern struct screen_info screen_info;
+
+#define ORIG_X                  (screen_info.orig_x)
+#define ORIG_Y                  (screen_info.orig_y)
+#define ORIG_VIDEO_MODE         (screen_info.orig_video_mode)
+#define ORIG_VIDEO_COLS         (screen_info.orig_video_cols)
+#define ORIG_VIDEO_EGA_BX       (screen_info.orig_video_ega_bx)
+#define ORIG_VIDEO_LINES        (screen_info.orig_video_lines)
+#define ORIG_VIDEO_ISVGA        (screen_info.orig_video_isVGA)
+#define ORIG_VIDEO_POINTS       (screen_info.orig_video_points)
+
+#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. */
+
+#endif /* _SCREEN_INFO_H */