b43: update cordic code to match current specs

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/net/wireless/b43/phy_common.h b/drivers/net/wireless/b43/phy_common.h
index 9e4de47d060..bd480b481bf 100644
--- a/drivers/net/wireless/b43/phy_common.h
+++ b/drivers/net/wireless/b43/phy_common.h
@@ -8,6 +8,10 @@ struct b43_wldev;
 /* Complex number using 2 32-bit signed integers */
 struct b43_c32 { s32 i, q; };
 
+#define CORDIC_CONVERT(value)   (((value) >= 0) ? \
+                                 ((((value) >> 15) + 1) >> 1) : \
+                                 -((((-(value)) >> 15) + 1) >> 1))
+
 /* PHY register routing bits */
 #define B43_PHYROUTE                    0x0C00 /* PHY register routing bits mask */
 #define  B43_PHYROUTE_BASE              0x0000 /* Base registers */