84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
// Copyright 2020 David Conran
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#include "IRrecv.h"
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#include "IRsend.h"
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// Airwell "Manchester code" based protocol.
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// Some other Airwell products use the COOLIX protocol.
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//
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// Supports:
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// Brand: Airwell, Model: RC08W remote
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const uint8_t kAirwellOverhead = 4;
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const uint16_t kAirwellHalfClockPeriod = 950; // uSeconds
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const uint16_t kAirwellHdrMark = 3 * kAirwellHalfClockPeriod; // uSeconds
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const uint16_t kAirwellHdrSpace = 4 * kAirwellHalfClockPeriod; // uSeconds
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const uint16_t kAirwellFooterMark = 5 * kAirwellHalfClockPeriod; // uSeconds
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#if SEND_AIRWELL
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// Send an Airwell Manchester Code formatted message.
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//
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// Args:
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// data: The message to be sent.
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// nbits: The number of bits of the message to be sent.
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// Typically kAirwellBits.
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// repeat: The number of times the command is to be repeated.
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//
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// Status: BETA / Appears to be working.
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//
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// Ref:
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// https://github.com/crankyoldgit/IRremoteESP8266/issues/1069
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void IRsend::sendAirwell(uint64_t data, uint16_t nbits, uint16_t repeat) {
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// Header + Data
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sendManchester(kAirwellHdrMark, kAirwellHdrMark, kAirwellHalfClockPeriod,
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0, 0, data, nbits, 38000, true, repeat);
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// Footer
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mark(kAirwellHdrMark + kAirwellHalfClockPeriod);
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space(kDefaultMessageGap); // A guess.
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}
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#endif
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#if DECODE_AIRWELL
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// Decode the supplied Airwell "Manchester code" message.
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//
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// Args:
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// results: Ptr to the data to decode and where to store the decode result.
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// offset: The starting index to use when attempting to decode the raw data.
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// Typically/Defaults to kStartOffset.
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// nbits: The number of data bits to expect. Typically kAirwellBits.
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// strict: Flag indicating if we should perform strict matching.
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// Returns:
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// boolean: True if it can decode it, false if it can't.
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//
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// Status: BETA / Appears to be working.
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//
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// Ref:
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// https://github.com/crankyoldgit/IRremoteESP8266/issues/1069
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bool IRrecv::decodeAirwell(decode_results *results, uint16_t offset,
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const uint16_t nbits, const bool strict) {
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if (results->rawlen < nbits + kAirwellOverhead - offset)
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return false; // Too short a message to match.
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// Compliance
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if (strict && nbits != kAirwellBits)
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return false; // Doesn't match our protocol defn.
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// Header #1 + Data #1 + Footer #1 (There are total of 3 sections)
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uint16_t used = matchManchester(results->rawbuf + offset, &results->value,
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results->rawlen - offset, nbits,
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kAirwellHdrMark, kAirwellHdrMark,
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kAirwellHalfClockPeriod,
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kAirwellHdrMark, kAirwellHdrSpace,
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true);
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if (used == 0) return false;
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offset += used;
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// Success
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results->decode_type = decode_type_t::AIRWELL;
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results->bits = nbits;
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results->address = 0;
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results->command = 0;
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return true;
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}
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#endif
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