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