broadsheetfb: support storing waveform

[safe/jmp/linux-2.6] / drivers / video / syscopyarea.c

diff --git a/drivers/video/syscopyarea.c b/drivers/video/syscopyarea.c
index e348893..a352d5f 100644 (file)
--- a/drivers/video/syscopyarea.c
+++ b/drivers/video/syscopyarea.c
@@ -19,32 +19,22 @@
 #include <linux/slab.h>
 #include <asm/types.h>
 #include <asm/io.h>
-
-    /*
-     *  Compose two values, using a bitmask as decision value
-     *  This is equivalent to (a & mask) | (b & ~mask)
-     */
-
-static inline unsigned long
-comp(unsigned long a, unsigned long b, unsigned long mask)
-{
-    return ((a ^ b) & mask) ^ b;
-}
+#include "fb_draw.h"
 
     /*
      *  Generic bitwise copy algorithm
      */
 
 static void
-bitcpy(unsigned long *dst, int dst_idx, const unsigned long *src,
-       int src_idx, int bits, unsigned n)
+bitcpy(struct fb_info *p, unsigned long *dst, int dst_idx,
+               const unsigned long *src, int src_idx, int bits, unsigned n)
 {
        unsigned long first, last;
        int const shift = dst_idx-src_idx;
        int left, right;
 
-       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 (!shift) {
                /* Same alignment for source and dest */
@@ -177,8 +167,8 @@ bitcpy(unsigned long *dst, int dst_idx, const unsigned long *src,
      */
 
 static void
-bitcpy_rev(unsigned long *dst, int dst_idx, const unsigned long *src,
-          int src_idx, int bits, unsigned n)
+bitcpy_rev(struct fb_info *p, unsigned long *dst, int dst_idx,
+               const unsigned long *src, int src_idx, int bits, unsigned n)
 {
        unsigned long first, last;
        int shift;
@@ -196,8 +186,8 @@ bitcpy_rev(unsigned long *dst, int dst_idx, const unsigned long *src,
 
        shift = dst_idx-src_idx;
 
-       first = FB_SHIFT_LOW(~0UL, bits - 1 - dst_idx);
-       last = ~(FB_SHIFT_LOW(~0UL, bits - 1 - ((dst_idx-n) % bits)));
+       first = FB_SHIFT_LOW(p, ~0UL, bits - 1 - dst_idx);
+       last = ~(FB_SHIFT_LOW(p, ~0UL, bits - 1 - ((dst_idx-n) % bits)));
 
        if (!shift) {
                /* Same alignment for source and dest */
@@ -363,7 +353,7 @@ void sys_copyarea(struct fb_info *p, const struct fb_copyarea *area)
                        dst_idx &= (bytes - 1);
                        src += src_idx >> (ffs(bits) - 1);
                        src_idx &= (bytes - 1);
-                       bitcpy_rev(dst, dst_idx, src, src_idx, bits,
+                       bitcpy_rev(p, dst, dst_idx, src, src_idx, bits,
                                width*p->var.bits_per_pixel);
                }
        } else {
@@ -372,7 +362,7 @@ void sys_copyarea(struct fb_info *p, const struct fb_copyarea *area)
                        dst_idx &= (bytes - 1);
                        src += src_idx >> (ffs(bits) - 1);
                        src_idx &= (bytes - 1);
-                       bitcpy(dst, dst_idx, src, src_idx, bits,
+                       bitcpy(p, dst, dst_idx, src, src_idx, bits,
                                width*p->var.bits_per_pixel);
                        dst_idx += bits_per_line;
                        src_idx += bits_per_line;