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SyncHome/trunk/Arduino/libraries/IRremote/src/ir_JVC.cpp
2023-03-17 11:59:21 +00:00

100 lines
2.9 KiB
C++

#include "IRremote.h"
//==============================================================================
// JJJJJ V V CCCC
// J V V C
// J V V C
// J J V V C
// J V CCCC
//==============================================================================
#define JVC_BITS 16
#define JVC_HEADER_MARK 8400
#define JVC_HEADER_SPACE 4200
#define JVC_BIT_MARK 600
#define JVC_ONE_SPACE 1600
#define JVC_ZERO_SPACE 550
#define JVC_REPEAT_SPACE 50000
//+=============================================================================
// JVC does NOT repeat by sending a separate code (like NEC does).
// The JVC protocol repeats by skipping the header.
// To send a JVC repeat signal, send the original code value
// and set 'repeat' to true
//
// JVC commands sometimes need to be sent two or three times with 40 to 60 ms pause in between.
//
#if SEND_JVC
void IRsend::sendJVC(unsigned long data, int nbits, bool repeat) {
// Set IR carrier frequency
enableIROut(38);
// Only send the Header if this is NOT a repeat command
if (!repeat) {
mark(JVC_HEADER_MARK);
space(JVC_HEADER_SPACE);
}
// Data
sendPulseDistanceWidthData(JVC_BIT_MARK, JVC_ONE_SPACE, JVC_BIT_MARK, JVC_ZERO_SPACE, data, nbits);
// Footer
mark(JVC_BIT_MARK);
space(0); // Always end with the LED off
}
#endif
//+=============================================================================
#if DECODE_JVC
bool IRrecv::decodeJVC() {
long data = 0;
int offset = 1; // Skip first space
// Check for repeat
if ((results.rawlen - 1 == 33) && MATCH_MARK(results.rawbuf[offset], JVC_BIT_MARK)
&& MATCH_MARK(results.rawbuf[results.rawlen - 1], JVC_BIT_MARK)) {
results.bits = 0;
results.value = REPEAT;
results.isRepeat = true;
results.decode_type = JVC;
return true;
}
// Initial mark
if (!MATCH_MARK(results.rawbuf[offset], JVC_HEADER_MARK)) {
return false;
}
offset++;
if (results.rawlen < (2 * JVC_BITS) + 1) {
return false;
}
// Initial space
if (!MATCH_SPACE(results.rawbuf[offset], JVC_HEADER_SPACE)) {
return false;
}
offset++;
data = decodePulseDistanceData(JVC_BITS, offset, JVC_BIT_MARK, JVC_ONE_SPACE, JVC_ZERO_SPACE);
// Stop bit
if (!MATCH_MARK(results.rawbuf[offset], JVC_BIT_MARK)) {
return false;
}
// Success
results.bits = JVC_BITS;
results.value = data;
results.decode_type = JVC;
return true;
}
bool IRrecv::decodeJVC(decode_results *aResults) {
bool aReturnValue = decodeJVC();
*aResults = results;
return aReturnValue;
}
#endif