31 строка
830 B
C
31 строка
830 B
C
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/*
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* Coldfire generic GPIO pinmux support.
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*
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* (C) Copyright 2009, Steven King <sfking@fdwdc.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef pinmux_h
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#define pinmux_h
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#define MCFPINMUX_NONE -1
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extern int mcf_pinmux_request(unsigned, unsigned);
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extern void mcf_pinmux_release(unsigned, unsigned);
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static inline int mcf_pinmux_is_valid(unsigned pinmux)
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{
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return pinmux != MCFPINMUX_NONE;
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}
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#endif
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