From e4c690e061b909127ab0f12e929f82f3f39ec953 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Mon, 28 Apr 2008 02:14:49 -0700 Subject: fb: add support for foreign endianness Add support for the framebuffers with non-native endianness. This is done via FBINFO_FOREIGN_ENDIAN flag that will be used by the drivers. Depending on the host endianness this flag will be overwritten by FBINFO_BE_MATH internal flag, or cleared. Tested to work on MPC8360E-RDK (BE) + Fujitsu MINT framebuffer (LE). Signed-off-by: Anton Vorontsov Cc: "Antonino A. Daplas" Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Cc: Clemens Koller Cc: Krzysztof Helt Cc: Geert Uytterhoeven Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/cfbfillrect.c | 48 ++++++++++++++++++++++++--------------------- 1 file changed, 26 insertions(+), 22 deletions(-) (limited to 'drivers/video/cfbfillrect.c') diff --git a/drivers/video/cfbfillrect.c b/drivers/video/cfbfillrect.c index 23d70a12e4da..64b35766b2a2 100644 --- a/drivers/video/cfbfillrect.c +++ b/drivers/video/cfbfillrect.c @@ -36,16 +36,16 @@ */ static void -bitfill_aligned(unsigned long __iomem *dst, int dst_idx, unsigned long pat, - unsigned n, int bits, u32 bswapmask) +bitfill_aligned(struct fb_info *p, unsigned long __iomem *dst, int dst_idx, + unsigned long pat, unsigned n, int bits, u32 bswapmask) { unsigned long first, last; if (!n) return; - first = fb_shifted_pixels_mask_long(dst_idx, bswapmask); - last = ~fb_shifted_pixels_mask_long((dst_idx+n) % bits, bswapmask); + first = fb_shifted_pixels_mask_long(p, dst_idx, bswapmask); + last = ~fb_shifted_pixels_mask_long(p, (dst_idx+n) % bits, bswapmask); if (dst_idx+n <= bits) { // Single word @@ -93,16 +93,16 @@ bitfill_aligned(unsigned long __iomem *dst, int dst_idx, unsigned long pat, */ static void -bitfill_unaligned(unsigned long __iomem *dst, int dst_idx, unsigned long pat, - int left, int right, unsigned n, int bits) +bitfill_unaligned(struct fb_info *p, unsigned long __iomem *dst, int dst_idx, + unsigned long pat, int left, int right, unsigned n, int bits) { unsigned long first, last; if (!n) return; - first = FB_SHIFT_HIGH(~0UL, dst_idx); - last = ~(FB_SHIFT_HIGH(~0UL, (dst_idx+n) % bits)); + first = FB_SHIFT_HIGH(p, ~0UL, dst_idx); + last = ~(FB_SHIFT_HIGH(p, ~0UL, (dst_idx+n) % bits)); if (dst_idx+n <= bits) { // Single word @@ -147,8 +147,9 @@ bitfill_unaligned(unsigned long __iomem *dst, int dst_idx, unsigned long pat, * Aligned pattern invert using 32/64-bit memory accesses */ static void -bitfill_aligned_rev(unsigned long __iomem *dst, int dst_idx, unsigned long pat, - unsigned n, int bits, u32 bswapmask) +bitfill_aligned_rev(struct fb_info *p, unsigned long __iomem *dst, + int dst_idx, unsigned long pat, unsigned n, int bits, + u32 bswapmask) { unsigned long val = pat, dat; unsigned long first, last; @@ -156,8 +157,8 @@ bitfill_aligned_rev(unsigned long __iomem *dst, int dst_idx, unsigned long pat, if (!n) return; - first = fb_shifted_pixels_mask_long(dst_idx, bswapmask); - last = ~fb_shifted_pixels_mask_long((dst_idx+n) % bits, bswapmask); + first = fb_shifted_pixels_mask_long(p, dst_idx, bswapmask); + last = ~fb_shifted_pixels_mask_long(p, (dst_idx+n) % bits, bswapmask); if (dst_idx+n <= bits) { // Single word @@ -217,16 +218,17 @@ bitfill_aligned_rev(unsigned long __iomem *dst, int dst_idx, unsigned long pat, */ static void -bitfill_unaligned_rev(unsigned long __iomem *dst, int dst_idx, unsigned long pat, - int left, int right, unsigned n, int bits) +bitfill_unaligned_rev(struct fb_info *p, unsigned long __iomem *dst, + int dst_idx, unsigned long pat, int left, int right, + unsigned n, int bits) { unsigned long first, last, dat; if (!n) return; - first = FB_SHIFT_HIGH(~0UL, dst_idx); - last = ~(FB_SHIFT_HIGH(~0UL, (dst_idx+n) % bits)); + first = FB_SHIFT_HIGH(p, ~0UL, dst_idx); + last = ~(FB_SHIFT_HIGH(p, ~0UL, (dst_idx+n) % bits)); if (dst_idx+n <= bits) { // Single word @@ -306,7 +308,8 @@ void cfb_fillrect(struct fb_info *p, const struct fb_fillrect *rect) p->fbops->fb_sync(p); if (!left) { u32 bswapmask = fb_compute_bswapmask(p); - void (*fill_op32)(unsigned long __iomem *dst, int dst_idx, + void (*fill_op32)(struct fb_info *p, + unsigned long __iomem *dst, int dst_idx, unsigned long pat, unsigned n, int bits, u32 bswapmask) = NULL; @@ -325,16 +328,17 @@ void cfb_fillrect(struct fb_info *p, const struct fb_fillrect *rect) while (height--) { dst += dst_idx >> (ffs(bits) - 1); dst_idx &= (bits - 1); - fill_op32(dst, dst_idx, pat, width*bpp, bits, bswapmask); + fill_op32(p, dst, dst_idx, pat, width*bpp, bits, + bswapmask); dst_idx += p->fix.line_length*8; } } else { int right; int r; int rot = (left-dst_idx) % bpp; - void (*fill_op)(unsigned long __iomem *dst, int dst_idx, - unsigned long pat, int left, int right, - unsigned n, int bits) = NULL; + void (*fill_op)(struct fb_info *p, unsigned long __iomem *dst, + int dst_idx, unsigned long pat, int left, + int right, unsigned n, int bits) = NULL; /* rotate pattern to correct start position */ pat = pat << rot | pat >> (bpp-rot); @@ -355,7 +359,7 @@ void cfb_fillrect(struct fb_info *p, const struct fb_fillrect *rect) while (height--) { dst += dst_idx >> (ffs(bits) - 1); dst_idx &= (bits - 1); - fill_op(dst, dst_idx, pat, left, right, + fill_op(p, dst, dst_idx, pat, left, right, width*bpp, bits); r = (p->fix.line_length*8) % bpp; pat = pat << (bpp-r) | pat >> r; -- cgit v1.2.3