95 lines
3.1 KiB
C++
95 lines
3.1 KiB
C++
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#include "IRremote.h"
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#include "IRremoteInt.h"
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// Reverse Engineered by looking at RAW dumps generated by IRremote
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// I have since discovered that Denon publish all their IR codes:
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// https://www.google.co.uk/search?q=DENON+MASTER+IR+Hex+Command+Sheet
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// -> http://assets.denon.com/documentmaster/us/denon%20master%20ir%20hex.xls
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// Having looked at the official Denon Pronto sheet and reverse engineered
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// the timing values from it, it is obvious that Denon have a range of
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// different timings and protocols ...the values here work for my AVR-3801 Amp!
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//==============================================================================
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// DDDD EEEEE N N OOO N N
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// D D E NN N O O NN N
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// D D EEE N N N O O N N N
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// D D E N NN O O N NN
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// DDDD EEEEE N N OOO N N
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//==============================================================================
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#define BITS 14 // The number of bits in the command
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#define HDR_MARK 300 // The length of the Header:Mark
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#define HDR_SPACE 750 // The lenght of the Header:Space
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#define BIT_MARK 300 // The length of a Bit:Mark
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#define ONE_SPACE 1800 // The length of a Bit:Space for 1's
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#define ZERO_SPACE 750 // The length of a Bit:Space for 0's
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//+=============================================================================
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//
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#if SEND_DENON
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void IRsend::sendDenon (unsigned long data, int nbits)
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{
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// Set IR carrier frequency
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enableIROut(38);
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// Header
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mark (HDR_MARK);
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space(HDR_SPACE);
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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 (BIT_MARK);
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space(ONE_SPACE);
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} else {
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mark (BIT_MARK);
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space(ZERO_SPACE);
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}
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}
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// Footer
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mark(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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//
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#if DECODE_DENON
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bool IRrecv::decodeDenon (decode_results *results)
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{
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unsigned long data = 0; // Somewhere to build our code
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int offset = 1; // Skip the Gap reading
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// Check we have the right amount of data
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if (irparams.rawlen != 1 + 2 + (2 * BITS) + 1) return false ;
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// Check initial Mark+Space match
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if (!MATCH_MARK (results->rawbuf[offset++], HDR_MARK )) return false ;
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if (!MATCH_SPACE(results->rawbuf[offset++], HDR_SPACE)) return false ;
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// Read the bits in
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for (int i = 0; i < BITS; i++) {
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// Each bit looks like: MARK + SPACE_1 -> 1
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// or : MARK + SPACE_0 -> 0
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if (!MATCH_MARK(results->rawbuf[offset++], BIT_MARK)) return false ;
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// IR data is big-endian, so we shuffle it in from the right:
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if (MATCH_SPACE(results->rawbuf[offset], ONE_SPACE)) data = (data << 1) | 1 ;
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else if (MATCH_SPACE(results->rawbuf[offset], 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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// Success
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results->bits = BITS;
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results->value = data;
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results->decode_type = DENON;
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return true;
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}
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#endif
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