Diff: ir_JVC.cpp

Revision:

0:70c8e56bac45

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ir_JVC.cpp	Sat Jan 23 06:16:48 2016 +0000
@@ -0,0 +1,101 @@
+#include "IRremote.h"
+#include "IRremoteInt.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_HDR_MARK     8000
+#define JVC_HDR_SPACE    4000
+#define JVC_BIT_MARK      600
+#define JVC_ONE_SPACE    1600
+#define JVC_ZERO_SPACE    550
+#define JVC_RPT_LENGTH  60000
+
+//+=============================================================================
+// 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
+//
+#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_HDR_MARK);
+		space(JVC_HDR_SPACE);
+	}
+
+	// Data
+	for (unsigned long  mask = 1UL << (nbits - 1);  mask;  mask >>= 1) {
+		if (data & mask) {
+			mark(JVC_BIT_MARK);
+			space(JVC_ONE_SPACE);
+		} else {
+			mark(JVC_BIT_MARK);
+			space(JVC_ZERO_SPACE);
+		}
+	}
+
+	// Footer
+    mark(JVC_BIT_MARK);
+    space(0);  // Always end with the LED off
+}
+#endif
+
+//+=============================================================================
+#if DECODE_JVC
+bool  IRrecv::decodeJVC (decode_results *results)
+{
+	long  data   = 0;
+	int   offset = 1; // Skip first space
+
+	// Check for repeat
+	if (  (irparams.rawlen - 1 == 33)
+	    && MATCH_MARK(results->rawbuf[offset], JVC_BIT_MARK)
+	    && MATCH_MARK(results->rawbuf[irparams.rawlen-1], JVC_BIT_MARK)
+	   ) {
+		results->bits        = 0;
+		results->value       = REPEAT;
+		results->decode_type = JVC;
+		return true;
+	}
+
+	// Initial mark
+	if (!MATCH_MARK(results->rawbuf[offset++], JVC_HDR_MARK))  return false ;
+
+	if (irparams.rawlen < (2 * JVC_BITS) + 1 )  return false ;
+
+	// Initial space
+	if (!MATCH_SPACE(results->rawbuf[offset++], JVC_HDR_SPACE))  return false ;
+
+	for (int i = 0;  i < JVC_BITS;  i++) {
+		if (!MATCH_MARK(results->rawbuf[offset++], JVC_BIT_MARK))  return false ;
+
+		if      (MATCH_SPACE(results->rawbuf[offset], JVC_ONE_SPACE))   data = (data << 1) | 1 ;
+		else if (MATCH_SPACE(results->rawbuf[offset], JVC_ZERO_SPACE))  data = (data << 1) | 0 ;
+		else                                                            return false ;
+		offset++;
+	}
+
+	// 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;
+}
+#endif
+