X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Ffb.h;h=72295b099228637fe7a6291eca43790b91260334;hb=13c48c490208d9e70d8d66d56f96c5054db69af7;hp=cec54106aa8730ea7e82cdbefa0bbfe97f015ffe;hpb=39fe5434cb9de5da40510028b17b96bc4eb312b3;p=linux-2.6

diff --git a/include/linux/fb.h b/include/linux/fb.h
index cec54106aa..72295b0992 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -180,6 +180,7 @@ struct fb_bitfield {
 };
 
 #define FB_NONSTD_HAM		1	/* Hold-And-Modify (HAM)        */
+#define FB_NONSTD_REV_PIX_IN_B	2	/* order of pixels in each byte is reversed */
 
 #define FB_ACTIVATE_NOW		0	/* set values immediately (or vbl)*/
 #define FB_ACTIVATE_NXTOPEN	1	/* activate on next open	*/
@@ -206,6 +207,7 @@ struct fb_bitfield {
 #define FB_VMODE_NONINTERLACED  0	/* non interlaced */
 #define FB_VMODE_INTERLACED	1	/* interlaced	*/
 #define FB_VMODE_DOUBLE		2	/* double scan */
+#define FB_VMODE_ODD_FLD_FIRST	4	/* interlaced: top line first */
 #define FB_VMODE_MASK		255
 
 #define FB_VMODE_YWRAP		256	/* ywrap instead of panning     */
@@ -789,6 +791,17 @@ struct fb_tile_ops {
  */
 #define FBINFO_MISC_ALWAYS_SETPAR   0x40000
 
+/*
+ * Host and GPU endianness differ.
+ */
+#define FBINFO_FOREIGN_ENDIAN	0x100000
+/*
+ * Big endian math. This is the same flags as above, but with different
+ * meaning, it is set by the fb subsystem depending FOREIGN_ENDIAN flag
+ * and host endianness. Drivers should not use this flag.
+ */
+#define FBINFO_BE_MATH  0x100000
+
 struct fb_info {
 	int node;
 	int flags;
@@ -897,15 +910,11 @@ struct fb_info {
 
 #endif
 
-#if defined (__BIG_ENDIAN)
-#define FB_LEFT_POS(bpp)          (32 - bpp)
-#define FB_SHIFT_HIGH(val, bits)  ((val) >> (bits))
-#define FB_SHIFT_LOW(val, bits)   ((val) << (bits))
-#else
-#define FB_LEFT_POS(bpp)          (0)
-#define FB_SHIFT_HIGH(val, bits)  ((val) << (bits))
-#define FB_SHIFT_LOW(val, bits)   ((val) >> (bits))
-#endif
+#define FB_LEFT_POS(p, bpp)          (fb_be_math(p) ? (32 - (bpp)) : 0)
+#define FB_SHIFT_HIGH(p, val, bits)  (fb_be_math(p) ? (val) >> (bits) : \
+						      (val) << (bits))
+#define FB_SHIFT_LOW(p, val, bits)   (fb_be_math(p) ? (val) << (bits) : \
+						      (val) >> (bits))
 
     /*
      *  `Generic' versions of the frame buffer device operations
@@ -968,6 +977,25 @@ extern void fb_deferred_io_cleanup(struct fb_info *info);
 extern int fb_deferred_io_fsync(struct file *file, struct dentry *dentry,
 				int datasync);
 
+static inline bool fb_be_math(struct fb_info *info)
+{
+#ifdef CONFIG_FB_FOREIGN_ENDIAN
+#if defined(CONFIG_FB_BOTH_ENDIAN)
+	return info->flags & FBINFO_BE_MATH;
+#elif defined(CONFIG_FB_BIG_ENDIAN)
+	return true;
+#elif defined(CONFIG_FB_LITTLE_ENDIAN)
+	return false;
+#endif /* CONFIG_FB_BOTH_ENDIAN */
+#else
+#ifdef __BIG_ENDIAN
+	return true;
+#else
+	return false;
+#endif /* __BIG_ENDIAN */
+#endif /* CONFIG_FB_FOREIGN_ENDIAN */
+}
+
 /* drivers/video/fbsysfs.c */
 extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
 extern void framebuffer_release(struct fb_info *info);
@@ -1054,6 +1082,7 @@ struct fb_videomode {
 	u32 flag;
 };
 
+extern const char *fb_mode_option;
 extern const struct fb_videomode vesa_modes[];
 
 struct fb_modelist {