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authorArend van Spriel <arend@broadcom.com>2011-05-31 11:22:16 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-06-03 15:01:07 -0400
commit10f8113ecb76eea72f96c7cfb72d7fed7c282565 (patch)
tree85dd734aeee52e3f21851f11436f4dabaf130033 /lib/Kconfig
parent7150962d637cf38617924f7f72ea00612283eb89 (diff)
downloadlinux-10f8113ecb76eea72f96c7cfb72d7fed7c282565.tar.bz2
lib: cordic: add library module providing cordic angle calculation
The brcm80211 driver in the staging tree has a cordic function to determine cosine and sine for a given angle. Feedback received from John Linville suggested that these kind of functions should be made available to others as a library function in the kernel tree. The b43 driver also has a cordic angle calculation implemented. Cc: linux-kernel@vger.kernel.org Cc: linux-wireless@vger.kernel.org Cc: "John W. Linville" <linville@tuxdriver.com> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Dan Carpenter <error27@gmail.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Larry Finger <Larry.Finger@lwfinger.net> Reviewed-by: Roland Vossen <rvossen@broadcom.com> Reviewed-by: Henry Ptasinski <henryp@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'lib/Kconfig')
-rw-r--r--lib/Kconfig7
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Kconfig b/lib/Kconfig
index ff9e5a34be76..5c702047c57f 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -279,4 +279,11 @@ config AVERAGE
If unsure, say N.
+config CORDIC
+ tristate "Cordic function"
+ help
+ The option provides arithmetic function using cordic algorithm
+ so its calculations are in fixed point. Modules can select this
+ when they require this function. Module will be called cordic.
+
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