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hc

2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/include/linux/cordic.h
..
..
@@ -18,6 +18,15 @@
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 #include <linux/types.h>
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+#define CORDIC_ANGLE_GEN	39797
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+#define CORDIC_PRECISION_SHIFT	16
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+#define CORDIC_NUM_ITER	(CORDIC_PRECISION_SHIFT + 2)
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+
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+#define CORDIC_FIXED(X)	((s32)((X) << CORDIC_PRECISION_SHIFT))
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+#define CORDIC_FLOAT(X)	(((X) >= 0) \
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+		? ((((X) >> (CORDIC_PRECISION_SHIFT - 1)) + 1) >> 1) \
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+		: -((((-(X)) >> (CORDIC_PRECISION_SHIFT - 1)) + 1) >> 1))
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+
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 /**
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  * struct cordic_iq - i/q coordinate.
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  *