102 lines
2.8 KiB
C++
102 lines
2.8 KiB
C++
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#include "IRremote.h"
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#include "IRremoteInt.h"
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//==============================================================================
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// JJJJJ V V CCCC
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// J V V C
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// J V V C
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// J J V V C
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// J V CCCC
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//==============================================================================
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#define JVC_BITS 16
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#define JVC_HDR_MARK 8000
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#define JVC_HDR_SPACE 4000
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#define JVC_BIT_MARK 600
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#define JVC_ONE_SPACE 1600
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#define JVC_ZERO_SPACE 550
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#define JVC_RPT_LENGTH 60000
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//+=============================================================================
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// JVC does NOT repeat by sending a separate code (like NEC does).
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// The JVC protocol repeats by skipping the header.
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// To send a JVC repeat signal, send the original code value
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// and set 'repeat' to true
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//
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#if SEND_JVC
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void IRsend::sendJVC (unsigned long data, int nbits, bool repeat)
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{
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// Set IR carrier frequency
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enableIROut(38);
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// Only send the Header if this is NOT a repeat command
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if (!repeat){
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mark(JVC_HDR_MARK);
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space(JVC_HDR_SPACE);
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}
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// Data
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for (unsigned long mask = 1UL << (nbits - 1); mask; mask >>= 1) {
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if (data & mask) {
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mark(JVC_BIT_MARK);
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space(JVC_ONE_SPACE);
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} else {
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mark(JVC_BIT_MARK);
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space(JVC_ZERO_SPACE);
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}
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}
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// Footer
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mark(JVC_BIT_MARK);
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space(0); // Always end with the LED off
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}
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#endif
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//+=============================================================================
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#if DECODE_JVC
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bool IRrecv::decodeJVC (decode_results *results)
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{
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long data = 0;
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int offset = 1; // Skip first space
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// Check for repeat
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if ( (irparams.rawlen - 1 == 33)
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&& MATCH_MARK(results->rawbuf[offset], JVC_BIT_MARK)
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&& MATCH_MARK(results->rawbuf[irparams.rawlen-1], JVC_BIT_MARK)
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) {
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results->bits = 0;
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results->value = REPEAT;
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results->decode_type = JVC;
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return true;
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}
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// Initial mark
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if (!MATCH_MARK(results->rawbuf[offset++], JVC_HDR_MARK)) return false ;
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if (irparams.rawlen < (2 * JVC_BITS) + 1 ) return false ;
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// Initial space
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if (!MATCH_SPACE(results->rawbuf[offset++], JVC_HDR_SPACE)) return false ;
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for (int i = 0; i < JVC_BITS; i++) {
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if (!MATCH_MARK(results->rawbuf[offset++], JVC_BIT_MARK)) return false ;
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if (MATCH_SPACE(results->rawbuf[offset], JVC_ONE_SPACE)) data = (data << 1) | 1 ;
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else if (MATCH_SPACE(results->rawbuf[offset], JVC_ZERO_SPACE)) data = (data << 1) | 0 ;
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else return false ;
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offset++;
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}
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// Stop bit
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if (!MATCH_MARK(results->rawbuf[offset], JVC_BIT_MARK)) return false ;
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// Success
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results->bits = JVC_BITS;
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results->value = data;
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results->decode_type = JVC;
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return true;
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}
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#endif
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