1 files changed, 42 insertions, 0 deletions
diff --git a/glcddrivers/common.h b/glcddrivers/common.h
new file mode 100644
index 0000000..d1ddcda
--- /dev/null
+++ b/glcddrivers/common.h
@@ -0,0 +1,42 @@
+/*
+ * 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