linux 2.6.16.38 w/ vs2.0.3-rc1

[linux-2.6.git] / drivers / usb / input / fixp-arith.h

diff --git a/drivers/usb/input/fixp-arith.h b/drivers/usb/input/fixp-arith.h
index ed3d2da..b44d398 100644 (file)
--- a/drivers/usb/input/fixp-arith.h
+++ b/drivers/usb/input/fixp-arith.h
@@ -2,6 +2,8 @@
 #define _FIXP_ARITH_H
 
 /*
+ * $$
+ *
  * Simplistic fixed-point arithmetics.
  * Hmm, I'm probably duplicating some code :(
  *
@@ -29,20 +31,20 @@
 
 #include <linux/types.h>
 
-/* The type representing fixed-point values */
+// The type representing fixed-point values
 typedef s16 fixp_t;
 
 #define FRAC_N 8
 #define FRAC_MASK ((1<<FRAC_N)-1)
 
-/* Not to be used directly. Use fixp_{cos,sin} */
-static const fixp_t cos_table[46] = {
+// Not to be used directly. Use fixp_{cos,sin}
+static const fixp_t cos_table[45] = {
        0x0100, 0x00FF, 0x00FF, 0x00FE, 0x00FD, 0x00FC, 0x00FA, 0x00F8,
        0x00F6, 0x00F3, 0x00F0, 0x00ED, 0x00E9, 0x00E6, 0x00E2, 0x00DD,
        0x00D9, 0x00D4, 0x00CF, 0x00C9, 0x00C4, 0x00BE, 0x00B8, 0x00B1,
        0x00AB, 0x00A4, 0x009D, 0x0096, 0x008F, 0x0087, 0x0080, 0x0078,
        0x0070, 0x0068, 0x005F, 0x0057, 0x004F, 0x0046, 0x003D, 0x0035,
-       0x002C, 0x0023, 0x001A, 0x0011, 0x0008, 0x0000
+       0x002C, 0x0023, 0x001A, 0x0011, 0x0008
 };
 
 
@@ -66,8 +68,9 @@ static inline fixp_t fixp_cos(unsigned int degrees)
        int quadrant = (degrees / 90) & 3;
        unsigned int i = degrees % 90;
 
-       if (quadrant == 1 || quadrant == 3)
-               i = 90 - i;
+       if (quadrant == 1 || quadrant == 3) {
+               i = 89 - i;
+       }
 
        i >>= 1;