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Diffstat (limited to 'drivers/video/cfbfillrect.c')
-rw-r--r--drivers/video/cfbfillrect.c36
1 files changed, 16 insertions, 20 deletions
diff --git a/drivers/video/cfbfillrect.c b/drivers/video/cfbfillrect.c
index 64b35766b2a..ba9f58b2a5e 100644
--- a/drivers/video/cfbfillrect.c
+++ b/drivers/video/cfbfillrect.c
@@ -9,10 +9,6 @@
*
* NOTES:
*
- * The code for depths like 24 that don't have integer number of pixels per
- * long is broken and needs to be fixed. For now I turned these types of
- * mode off.
- *
* Also need to add code to deal with cards endians that are different than
* the native cpu endians. I also need to deal with MSB position in the word.
*
@@ -139,7 +135,7 @@ bitfill_unaligned(struct fb_info *p, unsigned long __iomem *dst, int dst_idx,
// Trailing bits
if (last)
- FB_WRITEL(comp(pat, FB_READL(dst), first), dst);
+ FB_WRITEL(comp(pat, FB_READL(dst), last), dst);
}
}
@@ -281,7 +277,7 @@ bitfill_unaligned_rev(struct fb_info *p, unsigned long __iomem *dst,
void cfb_fillrect(struct fb_info *p, const struct fb_fillrect *rect)
{
- unsigned long pat, fg;
+ unsigned long pat, pat2, fg;
unsigned long width = rect->width, height = rect->height;
int bits = BITS_PER_LONG, bytes = bits >> 3;
u32 bpp = p->var.bits_per_pixel;
@@ -297,7 +293,7 @@ void cfb_fillrect(struct fb_info *p, const struct fb_fillrect *rect)
else
fg = rect->color;
- pat = pixel_to_pat( bpp, fg);
+ pat = pixel_to_pat(bpp, fg);
dst = (unsigned long __iomem *)((unsigned long)p->screen_base & ~(bytes-1));
dst_idx = ((unsigned long)p->screen_base & (bytes - 1))*8;
@@ -333,17 +329,16 @@ void cfb_fillrect(struct fb_info *p, const struct fb_fillrect *rect)
dst_idx += p->fix.line_length*8;
}
} else {
- int right;
- int r;
- int rot = (left-dst_idx) % bpp;
+ int right, r;
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);
-
- right = bpp-left;
+#ifdef __LITTLE_ENDIAN
+ right = left;
+ left = bpp - right;
+#else
+ right = bpp - left;
+#endif
switch (rect->rop) {
case ROP_XOR:
fill_op = bitfill_unaligned_rev;
@@ -352,17 +347,18 @@ void cfb_fillrect(struct fb_info *p, const struct fb_fillrect *rect)
fill_op = bitfill_unaligned;
break;
default:
- printk( KERN_ERR "cfb_fillrect(): unknown rop, defaulting to ROP_COPY\n");
+ printk(KERN_ERR "cfb_fillrect(): unknown rop, defaulting to ROP_COPY\n");
fill_op = bitfill_unaligned;
break;
}
while (height--) {
- dst += dst_idx >> (ffs(bits) - 1);
+ dst += dst_idx / bits;
dst_idx &= (bits - 1);
- fill_op(p, dst, dst_idx, pat, left, right,
+ r = dst_idx % bpp;
+ /* rotate pattern to the correct start position */
+ pat2 = le_long_to_cpu(rolx(cpu_to_le_long(pat), r, bpp));
+ fill_op(p, dst, dst_idx, pat2, left, right,
width*bpp, bits);
- r = (p->fix.line_length*8) % bpp;
- pat = pat << (bpp-r) | pat >> r;
dst_idx += p->fix.line_length*8;
}
}