95 lines
2.5 KiB
C
95 lines
2.5 KiB
C
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/*
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* IRremote
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* Version 0.1 July, 2009
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* Copyright 2009 Ken Shirriff
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* For details, see http://arcfn.com/2009/08/multi-protocol-infrared-remote-library.htm http://arcfn.com
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*
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* Interrupt code based on NECIRrcv by Joe Knapp
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* http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1210243556
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* Also influenced by http://zovirl.com/2008/11/12/building-a-universal-remote-with-an-arduino/
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*/
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#ifndef IRremote_h
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#define IRremote_h
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// The following are compile-time library options.
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// If you change them, recompile the library.
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// If DEBUG is defined, a lot of debugging output will be printed during decoding.
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// TEST must be defined for the IRtest unittests to work. It will make some
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// methods virtual, which will be slightly slower, which is why it is optional.
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// #define DEBUG
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// #define TEST
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// Results returned from the decoder
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class decode_results {
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public:
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int decode_type; // NEC, SONY, RC5, UNKNOWN
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unsigned long value; // Decoded value
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int bits; // Number of bits in decoded value
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volatile unsigned int *rawbuf; // Raw intervals in .5 us ticks
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int rawlen; // Number of records in rawbuf.
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};
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// Values for decode_type
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#define NEC 1
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#define SONY 2
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#define RC5 3
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#define RC6 4
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#define UNKNOWN -1
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// Decoded value for NEC when a repeat code is received
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#define REPEAT 0xffffffff
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// main class for receiving IR
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class IRrecv
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{
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public:
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IRrecv(int recvpin);
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void blink13(int blinkflag);
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int decode(decode_results *results);
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void enableIRIn();
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void resume();
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private:
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// These are called by decode
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int getRClevel(decode_results *results, int *offset, int *used, int t1);
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long decodeNEC(decode_results *results);
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long decodeSony(decode_results *results);
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long decodeRC5(decode_results *results);
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long decodeRC6(decode_results *results);
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}
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;
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// Only used for testing; can remove virtual for shorter code
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#ifdef TEST
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#define VIRTUAL virtual
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#else
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#define VIRTUAL
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#endif
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class IRsend
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{
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public:
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IRsend() {}
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void sendNEC(unsigned long data, int nbits);
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void sendSony(unsigned long data, int nbits);
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void sendRaw(unsigned int buf[], int len, int hz);
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void sendRC5(unsigned long data, int nbits);
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void sendRC6(unsigned long data, int nbits);
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// private:
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void enableIROut(int khz);
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VIRTUAL void mark(int usec);
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VIRTUAL void space(int usec);
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}
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;
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// Some useful constants
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#define USECPERTICK 50 // microseconds per clock interrupt tick
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#define RAWBUF 76 // Length of raw duration buffer
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// Marks tend to be 100us too long, and spaces 100us too short
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// when received due to sensor lag.
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#define MARK_EXCESS 100
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#endif
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