/*

  * GraphLCD driver library

  *

  * common.c  -  various functions

  *

  * parts were taken from graphlcd plugin for the Video Disc Recorder

  * (c) 2001-2004 Carsten Siebholz <c.siebholz AT t-online.de>

  *

  * This file is released under the GNU General Public License. Refer

  * to the COPYING file distributed with this package.

  *

  * (c) 2004 Andreas Regel <andreas.regel AT powarman.de>

  */

 #ifndef _GLCDDRIVERS_COMMON_H_

 #define _GLCDDRIVERS_COMMON_H_

 #include <string>

 namespace GLCD

 {

 const unsigned char bitmask[8] = {0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01};

 const unsigned char bitmaskl[8] = {0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff};

 const unsigned char bitmaskr[8] = {0xff, 0x7f, 0x3f, 0x1f, 0x0f, 0x07, 0x03, 0x01};

 // functions to enable/disable very short sleeps.

 // Therefore, the priority will be changed. => use with care !

 int nSleepInit(void);

 int nSleepDeInit(void);

 void nSleep(long ns);

 void uSleep(long us);

 unsigned char ReverseBits(unsigned char value);

 void clip(int & value, int min, int max);

 void sort(int & value1, int & value2);

 std::string trim(const std::string & s);

 } // end of namespace

 #endif