forked from Arduino-IRremote/Arduino-IRremote
/
ir_Aiwa.cpp
105 lines (86 loc) · 3.5 KB
/
ir_Aiwa.cpp
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#include "IRremote.h"
#include "IRremoteInt.h"
//==============================================================================
// AAA IIIII W W AAA
// A A I W W A A
// AAAAA I W W W AAAAA
// A A I W W W A A
// A A IIIII WWW A A
//==============================================================================
// Based off the RC-T501 RCU
// Lirc file http://lirc.sourceforge.net/remotes/aiwa/RC-T501
#define AIWA_RC_T501_HZ 38
#define AIWA_RC_T501_BITS 15
#define AIWA_RC_T501_PRE_BITS 26
#define AIWA_RC_T501_POST_BITS 1
#define AIWA_RC_T501_SUM_BITS (AIWA_RC_T501_PRE_BITS + AIWA_RC_T501_BITS + AIWA_RC_T501_POST_BITS)
#define AIWA_RC_T501_HDR_MARK 8800
#define AIWA_RC_T501_HDR_SPACE 4500
#define AIWA_RC_T501_BIT_MARK 500
#define AIWA_RC_T501_ONE_SPACE 600
#define AIWA_RC_T501_ZERO_SPACE 1700
//+=============================================================================
#if SEND_AIWA_RC_T501
void IRsend::sendAiwaRCT501 (int code)
{
unsigned long pre = 0x0227EEC0; // 26-bits
// Set IR carrier frequency
enableIROut(AIWA_RC_T501_HZ);
// Header
mark(AIWA_RC_T501_HDR_MARK);
space(AIWA_RC_T501_HDR_SPACE);
// Send "pre" data
for (unsigned long mask = 1UL << (26 - 1); mask; mask >>= 1) {
mark(AIWA_RC_T501_BIT_MARK);
if (pre & mask) space(AIWA_RC_T501_ONE_SPACE) ;
else space(AIWA_RC_T501_ZERO_SPACE) ;
}
//-v- THIS CODE LOOKS LIKE IT MIGHT BE WRONG - CHECK!
// it only send 15bits and ignores the top bit
// then uses TOPBIT which is 0x80000000 to check the bit code
// I suspect TOPBIT should be changed to 0x00008000
// Skip first code bit
code <<= 1;
// Send code
for (int i = 0; i < 15; i++) {
mark(AIWA_RC_T501_BIT_MARK);
if (code & 0x80000000) space(AIWA_RC_T501_ONE_SPACE) ;
else space(AIWA_RC_T501_ZERO_SPACE) ;
code <<= 1;
}
//-^- THIS CODE LOOKS LIKE IT MIGHT BE WRONG - CHECK!
// POST-DATA, 1 bit, 0x0
mark(AIWA_RC_T501_BIT_MARK);
space(AIWA_RC_T501_ZERO_SPACE);
mark(AIWA_RC_T501_BIT_MARK);
space(0);
}
#endif
//+=============================================================================
#if DECODE_AIWA_RC_T501
bool IRrecv::decodeAiwaRCT501 (decode_results *results)
{
int data = 0;
int offset = 1;
// Check SIZE
if (irparams.rawlen < 2 * (AIWA_RC_T501_SUM_BITS) + 4) return false ;
// Check HDR Mark/Space
if (!MATCH_MARK (results->rawbuf[offset++], AIWA_RC_T501_HDR_MARK )) return false ;
if (!MATCH_SPACE(results->rawbuf[offset++], AIWA_RC_T501_HDR_SPACE)) return false ;
offset += 26; // skip pre-data - optional
while(offset < irparams.rawlen - 4) {
if (MATCH_MARK(results->rawbuf[offset], AIWA_RC_T501_BIT_MARK)) offset++ ;
else return false ;
// ONE & ZERO
if (MATCH_SPACE(results->rawbuf[offset], AIWA_RC_T501_ONE_SPACE)) data = (data << 1) | 1 ;
else if (MATCH_SPACE(results->rawbuf[offset], AIWA_RC_T501_ZERO_SPACE)) data = (data << 1) | 0 ;
else break ; // End of one & zero detected
offset++;
}
results->bits = (offset - 1) / 2;
if (results->bits < 42) return false ;
results->value = data;
results->decode_type = AIWA_RC_T501;
return true;
}
#endif