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20 lines
639 B
20 lines
639 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* rational fractions |
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* |
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* Copyright (C) 2009 emlix GmbH, Oskar Schirmer <[email protected]> |
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* |
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* helper functions when coping with rational numbers, |
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* e.g. when calculating optimum numerator/denominator pairs for |
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* pll configuration taking into account restricted register size |
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*/ |
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#ifndef _LINUX_RATIONAL_H |
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#define _LINUX_RATIONAL_H |
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void rational_best_approximation( |
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unsigned long given_numerator, unsigned long given_denominator, |
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unsigned long max_numerator, unsigned long max_denominator, |
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unsigned long *best_numerator, unsigned long *best_denominator); |
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#endif /* _LINUX_RATIONAL_H */
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