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