112 lines
3.9 KiB
C++
112 lines
3.9 KiB
C++
// Copyright 2018 David Conran
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#include "IRrecv.h"
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#include "IRsend.h"
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#include "IRutils.h"
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// CCCCC AAA RRRRRR RRRRRR IIIII EEEEEEE RRRRRR
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// CC C AAAAA RR RR RR RR III EE RR RR
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// CC AA AA RRRRRR RRRRRR III EEEEE RRRRRR
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// CC C AAAAAAA RR RR RR RR III EE RR RR
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// CCCCC AA AA RR RR RR RR IIIII EEEEEEE RR RR
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// Suits Carrier/Surrey HVAC models:
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// 42QG5A55970 (remote)
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// 619EGX0090E0 / 619EGX0120E0 / 619EGX0180E0 / 619EGX0220E0 (indoor units)
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// 53NGK009/012 (inverter)
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// Constants
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// Ref:
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// https://github.com/markszabo/IRremoteESP8266/issues/385
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const uint16_t kCarrierAcHdrMark = 8532;
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const uint16_t kCarrierAcHdrSpace = 4228;
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const uint16_t kCarrierAcBitMark = 628;
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const uint16_t kCarrierAcOneSpace = 1320;
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const uint16_t kCarrierAcZeroSpace = 532;
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const uint16_t kCarrierAcGap = 20000;
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#if SEND_CARRIER_AC
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// Send a Carrier HVAC 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 bit size of the message being sent. typically kCarrierAcBits.
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// repeat: The number of times the message is to be repeated.
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//
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// Status: BETA / Appears to work on real devices.
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//
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void IRsend::sendCarrierAC(uint64_t data, uint16_t nbits, uint16_t repeat) {
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for (uint16_t r = 0; r <= repeat; r++) {
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uint64_t temp_data = data;
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// Carrier sends the data block three times. normal + inverted + normal.
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for (uint16_t i = 0; i < 3; i++) {
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sendGeneric(kCarrierAcHdrMark, kCarrierAcHdrSpace, kCarrierAcBitMark,
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kCarrierAcOneSpace, kCarrierAcBitMark, kCarrierAcZeroSpace,
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kCarrierAcBitMark, kCarrierAcGap, temp_data, nbits, 38, true,
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0, kDutyDefault);
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temp_data = invertBits(temp_data, nbits);
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}
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}
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}
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#endif
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#if DECODE_CARRIER_AC
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// Decode the supplied Carrier HVAC message.
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// Carrier HVAC messages contain only 32 bits, but it is sent three(3) times.
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// i.e. normal + inverted + normal
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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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// nbits: Nr. of bits to expect in the data portion.
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// Typically kCarrierAcBits.
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// strict: Flag to indicate if we strictly adhere to the specification.
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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: ALPHA / Untested.
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//
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bool IRrecv::decodeCarrierAC(decode_results *results, uint16_t nbits,
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bool strict) {
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if (results->rawlen < ((2 * nbits + kHeader + kFooter) * 3) - 1)
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return false; // Can't possibly be a valid Carrier message.
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if (strict && nbits != kCarrierAcBits)
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return false; // We expect Carrier to be 32 bits of message.
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uint64_t data = 0;
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uint64_t prev_data = 0;
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uint16_t offset = kStartOffset;
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for (uint8_t i = 0; i < 3; i++) {
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prev_data = data;
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// Header
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if (!matchMark(results->rawbuf[offset++], kCarrierAcHdrMark)) return false;
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if (!matchSpace(results->rawbuf[offset++], kCarrierAcHdrSpace))
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return false;
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// Data
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match_result_t data_result =
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matchData(&(results->rawbuf[offset]), nbits, kCarrierAcBitMark,
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kCarrierAcOneSpace, kCarrierAcBitMark, kCarrierAcZeroSpace);
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if (data_result.success == false) return false;
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data = data_result.data;
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offset += data_result.used;
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// Footer
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if (!matchMark(results->rawbuf[offset++], kCarrierAcBitMark)) return false;
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if (offset < results->rawlen &&
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!matchAtLeast(results->rawbuf[offset++], kCarrierAcGap))
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return false;
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// Compliance.
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if (strict) {
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// Check if the data is an inverted copy of the previous data.
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if (i > 0 && prev_data != invertBits(data, nbits)) return false;
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}
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}
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// Success
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results->bits = nbits;
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results->value = data;
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results->decode_type = CARRIER_AC;
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results->address = data >> 16;
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results->command = data & 0xFFFF;
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return true;
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}
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#endif
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