BarcodeLED.h

00001 /* Copyright (c) 2010 iZsh - izsh at fail0verflow.com
00002  *
00003  * This program is free software: you can redistribute it and/or modify
00004  * it under the terms of the GNU General Public License as published by
00005  * the Free Software Foundation, either version 3 of the License, or
00006  * (at your option) any later version.
00007  * 
00008  * This program is distributed in the hope that it will be useful,
00009  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00010  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00011  * GNU General Public License for more details.
00012  *
00013  * You should have received a copy of the GNU General Public License
00014  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
00015  */
00016  #ifndef IZSH_MBED_BARCODELED_H
00017  #define IZSH_MBED_BARCODELED_H
00018  
00019  #include "mbed.h"
00020  
00021  class BarcodeLED
00022  {
00023     public:
00024     enum CodeType
00025     {
00026         Code39,
00027         Code128a = 103,
00028         Code128b = 104,
00029         Code128c = 105,
00030     };
00031  
00032     BarcodeLED(const PinName Led, const CodeType Codetype = Code39, const int BaseDelay = 20);
00033     
00034     CodeType GetCodetype();
00035     void SetCodetype(const CodeType Codetype);
00036     
00037     int GetBaseDelay();
00038     void SetBaseDelay(const int BaseDelay);
00039     
00040     int GetVerbose();
00041     void SetVerbose(const bool Verbose);
00042     
00043     void Emit(const char Str[]);
00044     
00045     private:
00046     
00047     void EmitCode39(const char Str[]);
00048     void EmitCode128(const char Str[]);
00049     
00050     int ASCII2Code39(const char C);
00051     int ASCII2Code128(const char C);
00052 
00053     char * RevStr(char Str[]);
00054     void FlashSeq(const char Seq[]);
00055     
00056     int Code128Checksum(const char Str[]);
00057     
00058     DigitalOut m_Led;
00059     CodeType m_Codetype; 
00060     int m_BaseDelay;
00061     bool m_Verbose;
00062     
00063     static const char * m_Barcode39[];
00064     static const char * m_Barcode128[];
00065  };
00066  
00067  
00068  #endif