Tasmota/lib/IRremoteESP8266-2.7.1/src/ir_Carrier.cpp

103 lines
3.5 KiB
C++

// Copyright 2018 David Conran
// Supports:
// Brand: Carrier/Surrey, Model: 42QG5A55970 remote
// Brand: Carrier/Surrey, Model: 619EGX0090E0 A/C
// Brand: Carrier/Surrey, Model: 619EGX0120E0 A/C
// Brand: Carrier/Surrey, Model: 619EGX0180E0 A/C
// Brand: Carrier/Surrey, Model: 619EGX0220E0 A/C
// Brand: Carrier/Surrey, Model: 53NGK009/012 Inverter
#include "IRrecv.h"
#include "IRsend.h"
#include "IRutils.h"
// Constants
// Ref:
// https://github.com/crankyoldgit/IRremoteESP8266/issues/385
const uint16_t kCarrierAcHdrMark = 8532;
const uint16_t kCarrierAcHdrSpace = 4228;
const uint16_t kCarrierAcBitMark = 628;
const uint16_t kCarrierAcOneSpace = 1320;
const uint16_t kCarrierAcZeroSpace = 532;
const uint16_t kCarrierAcGap = 20000;
#if SEND_CARRIER_AC
// Send a Carrier HVAC formatted message.
//
// Args:
// data: The message to be sent.
// nbits: The bit size of the message being sent. typically kCarrierAcBits.
// repeat: The number of times the message is to be repeated.
//
// Status: BETA / Appears to work on real devices.
//
void IRsend::sendCarrierAC(uint64_t data, uint16_t nbits, uint16_t repeat) {
for (uint16_t r = 0; r <= repeat; r++) {
uint64_t temp_data = data;
// Carrier sends the data block three times. normal + inverted + normal.
for (uint16_t i = 0; i < 3; i++) {
sendGeneric(kCarrierAcHdrMark, kCarrierAcHdrSpace, kCarrierAcBitMark,
kCarrierAcOneSpace, kCarrierAcBitMark, kCarrierAcZeroSpace,
kCarrierAcBitMark, kCarrierAcGap, temp_data, nbits, 38, true,
0, kDutyDefault);
temp_data = invertBits(temp_data, nbits);
}
}
}
#endif
#if DECODE_CARRIER_AC
// Decode the supplied Carrier HVAC message.
// Carrier HVAC messages contain only 32 bits, but it is sent three(3) times.
// i.e. normal + inverted + normal
// Args:
// results: Ptr to the data to decode and where to store the decode result.
// nbits: Nr. of bits to expect in the data portion.
// Typically kCarrierAcBits.
// strict: Flag to indicate if we strictly adhere to the specification.
// Returns:
// boolean: True if it can decode it, false if it can't.
//
// Status: ALPHA / Untested.
//
bool IRrecv::decodeCarrierAC(decode_results *results, uint16_t nbits,
bool strict) {
if (results->rawlen < ((2 * nbits + kHeader + kFooter) * 3) - 1)
return false; // Can't possibly be a valid Carrier message.
if (strict && nbits != kCarrierAcBits)
return false; // We expect Carrier to be 32 bits of message.
uint64_t data = 0;
uint64_t prev_data = 0;
uint16_t offset = kStartOffset;
for (uint8_t i = 0; i < 3; i++) {
prev_data = data;
// Match Header + Data + Footer
uint16_t used;
used = matchGeneric(results->rawbuf + offset, &data,
results->rawlen - offset, nbits,
kCarrierAcHdrMark, kCarrierAcHdrSpace,
kCarrierAcBitMark, kCarrierAcOneSpace,
kCarrierAcBitMark, kCarrierAcZeroSpace,
kCarrierAcBitMark, kCarrierAcGap, true);
if (!used) return false;
offset += used;
// Compliance.
if (strict) {
// Check if the data is an inverted copy of the previous data.
if (i > 0 && prev_data != invertBits(data, nbits)) return false;
}
}
// Success
results->bits = nbits;
results->value = data;
results->decode_type = CARRIER_AC;
results->address = data >> 16;
results->command = data & 0xFFFF;
return true;
}
#endif