From: Anssi Hannula <anssi.hannula@gmail.com>

Add the value of cos(90) = 0 to the table.  This also moves the results so
that sin(x) == sin(180-x) is true as expected.

Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com>
Cc: Dmitry Torokhov <dtor_core@ameritech.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 drivers/input/fixp-arith.h |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff -puN drivers/input/fixp-arith.h~input-fix-accuracy-of-fixp-arithh drivers/input/fixp-arith.h
--- devel/drivers/input/fixp-arith.h~input-fix-accuracy-of-fixp-arithh	2006-06-01 20:26:40.000000000 -0700
+++ devel-akpm/drivers/input/fixp-arith.h	2006-06-01 20:26:40.000000000 -0700
@@ -38,13 +38,13 @@ typedef s16 fixp_t;
 #define FRAC_MASK ((1<<FRAC_N)-1)
 
 // Not to be used directly. Use fixp_{cos,sin}
-static const fixp_t cos_table[45] = {
+static const fixp_t cos_table[46] = {
 	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
+	0x002C,	0x0023,	0x001A,	0x0011,	0x0008, 0x0000
 };
 
 
@@ -69,7 +69,7 @@ static inline fixp_t fixp_cos(unsigned i
 	unsigned int i = degrees % 90;
 
 	if (quadrant == 1 || quadrant == 3) {
-		i = 89 - i;
+		i = 90 - i;
 	}
 
 	i >>= 1;
_