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lib: cordic: Move cordic macros and defines to header file

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Now that these macros are in header file, we can eventually
clean up the duplicate macros present in the drivers that
utilize the same cordic algorithm implementation.

Also add CORDIC_ prefix to nonprefixed macros.

Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Priit Laes <plaes@plaes.org>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Priit Laes
2018-11-19 20:01:22 +02:00
committed by Kalle Valo
parent 559afaa2c5
commit 58d81d64e0
2 changed files with 16 additions and 16 deletions
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9
include/linux/cordic.h
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@@ -18,6 +18,15 @@
#include <linux/types.h>
#define CORDIC_ANGLE_GEN 39797
#define CORDIC_PRECISION_SHIFT 16
#define CORDIC_NUM_ITER (CORDIC_PRECISION_SHIFT + 2)
#define CORDIC_FIXED(X) ((s32)((X) << CORDIC_PRECISION_SHIFT))
#define CORDIC_FLOAT(X) (((X) >= 0) \
? ((((X) >> (CORDIC_PRECISION_SHIFT - 1)) + 1) >> 1) \
: -((((-(X)) >> (CORDIC_PRECISION_SHIFT - 1)) + 1) >> 1))
/**
* struct cordic_iq - i/q coordinate.
*