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Arduino-IRremote/src/ir_Samsung.hpp

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/*
* ir_Samsung.hpp
*
* Contains functions for receiving and sending Samsung IR Protocol in "raw" and standard format with 16 bit address and 16 or 32 bit command
*
* This file is part of Arduino-IRremote https://github.com/Arduino-IRremote/Arduino-IRremote.
*
************************************************************************************
* MIT License
*
* Copyright (c) 2017-2021 Darryl Smith, Armin Joachimsmeyer
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is furnished
* to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONSAMSUNGTION WITH THE SOFTWARE
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
************************************************************************************
*/
#ifndef _IR_SAMSUNG_HPP
#define _IR_SAMSUNG_HPP
#include <Arduino.h>
//#define DEBUG // Activate this for lots of lovely debug output from this decoder.
#include "IRremoteInt.h" // evaluates the DEBUG for IR_DEBUG_PRINT
#include "LongUnion.h"
/** \addtogroup Decoder Decoders and encoders for different protocols
* @{
*/
//==============================================================================
// SSSS AAA MMM SSSS U U N N GGGG
// S A A M M M S U U NN N G
// SSS AAAAA M M M SSS U U N N N G GG
// S A A M M S U U N NN G G
// SSSS A A M M SSSS UUU N N GGG
//==============================================================================
// see http://www.hifi-remote.com/wiki/index.php?title=DecodeIR#Samsung
// https://www.mikrocontroller.net/articles/IRMP_-_english#SAMSUNG32
// LSB first, 1 start bit + 16 bit address + 16,32 bit data + 1 stop bit.
// IRP notation: {38k,5553}<1,-1|1,-3>(8,-8,D:8,S:8,F:8,~F:8,1,^110)+ ==> 8 bit data
// IRP notation: {38k,5553}<1,-1|1,-3>(8,-8,D:8,S:8,F:16,1,^110)+ ==> 16 bit data
// IRP notation: {38k,5553}<1,-1|1,-3>(8,-8,D:8,S:8,F:32,1,^110)+ ==> 32 bit data
//
#define SAMSUNG_ADDRESS_BITS 16
#define SAMSUNG_COMMAND16_BITS 16
#define SAMSUNG_COMMAND32_BITS 32
#define SAMSUNG_BITS (SAMSUNG_ADDRESS_BITS + SAMSUNG_COMMAND16_BITS)
#define SAMSUNG48_BITS (SAMSUNG_ADDRESS_BITS + SAMSUNG_COMMAND32_BITS)
// except SAMSUNG_HEADER_MARK, values are like NEC
#define SAMSUNG_UNIT 560 // 21.28 periods of 38 kHz, 11.2 ticks TICKS_LOW = 8.358 TICKS_HIGH = 15.0
#define SAMSUNG_HEADER_MARK (8 * SAMSUNG_UNIT) // 4500 | 180
#define SAMSUNG_HEADER_SPACE (8 * SAMSUNG_UNIT) // 4500
#define SAMSUNG_BIT_MARK SAMSUNG_UNIT
#define SAMSUNG_ONE_SPACE (3 * SAMSUNG_UNIT) // 1690 | 33.8 TICKS_LOW = 25.07 TICKS_HIGH = 45.0
#define SAMSUNG_ZERO_SPACE SAMSUNG_UNIT
#define SAMSUNG_AVERAGE_DURATION 55000 // SAMSUNG_HEADER_MARK + SAMSUNG_HEADER_SPACE + 32 * 2,5 * SAMSUNG_UNIT + SAMSUNG_UNIT // 2.5 because we assume more zeros than ones
#define SAMSUNG_REPEAT_DURATION (SAMSUNG_HEADER_MARK + SAMSUNG_HEADER_SPACE + SAMSUNG_BIT_MARK + SAMSUNG_ZERO_SPACE + SAMSUNG_BIT_MARK)
#define SAMSUNG_REPEAT_PERIOD 110000 // Commands are repeated every 110 ms (measured from start to start) for as long as the key on the remote control is held down.
#define SAMSUNG_REPEAT_SPACE (SAMSUNG_REPEAT_PERIOD - SAMSUNG_AVERAGE_DURATION)
/**
* Send repeat
* Repeat commands should be sent in a 110 ms raster.
* was sent by an LG 6711R1P071A remote
*/
void IRsend::sendSamsungLGRepeat() {
enableIROut(SAMSUNG_KHZ); // 38 kHz
mark(SAMSUNG_HEADER_MARK);
space(SAMSUNG_HEADER_SPACE);
mark(SAMSUNG_BIT_MARK);
space(SAMSUNG_ZERO_SPACE);
mark(SAMSUNG_BIT_MARK);
IrReceiver.restartAfterSend();
}
void IRsend::sendSamsung(uint16_t aAddress, uint16_t aCommand, uint_fast8_t aNumberOfRepeats) {
// send 16 bit address and 8 command bits and then 8 inverted command bits LSB first
LongUnion tData;
tData.UWord.LowWord = aAddress;
tData.UByte.MidHighByte = aCommand;
tData.UByte.HighByte = ~aCommand;
sendPulseDistanceWidth(SAMSUNG_KHZ, SAMSUNG_HEADER_MARK, SAMSUNG_HEADER_SPACE, SAMSUNG_BIT_MARK, SAMSUNG_ONE_SPACE,
SAMSUNG_BIT_MARK, SAMSUNG_ZERO_SPACE, tData.ULong, SAMSUNG_ADDRESS_BITS + SAMSUNG_COMMAND16_BITS, PROTOCOL_IS_LSB_FIRST,
SEND_STOP_BIT, SAMSUNG_REPEAT_PERIOD / MICROS_IN_ONE_MILLI, aNumberOfRepeats);
}
/*
* Sent e.g. by an LG 6711R1P071A remote
*/
void IRsend::sendSamsungLG(uint16_t aAddress, uint16_t aCommand, uint_fast8_t aNumberOfRepeats,
bool aSendOnlySpecialSamsungRepeat) {
if (aSendOnlySpecialSamsungRepeat) {
sendSamsungLGRepeat();
return;
}
// Set IR carrier frequency
enableIROut(SAMSUNG_KHZ);
// Header
mark(SAMSUNG_HEADER_MARK);
space(SAMSUNG_HEADER_SPACE);
// send 16 bit address and 8 command bits and then 8 inverted command bits LSB first
LongUnion tSendValue;
tSendValue.UWord.LowWord = aAddress;
tSendValue.UByte.MidHighByte = aCommand;
tSendValue.UByte.HighByte = ~aCommand;
// Address
sendPulseDistanceWidthData(SAMSUNG_BIT_MARK, SAMSUNG_ONE_SPACE, SAMSUNG_BIT_MARK, SAMSUNG_ZERO_SPACE, tSendValue.ULong,
SAMSUNG_ADDRESS_BITS + SAMSUNG_COMMAND16_BITS, PROTOCOL_IS_LSB_FIRST, SEND_STOP_BIT);
for (uint_fast8_t i = 0; i < aNumberOfRepeats; ++i) {
// send repeat in a 110 ms raster
if (i == 0) {
delay((SAMSUNG_REPEAT_PERIOD - SAMSUNG_AVERAGE_DURATION) / MICROS_IN_ONE_MILLI);
} else {
delay((SAMSUNG_REPEAT_PERIOD - SAMSUNG_REPEAT_DURATION) / MICROS_IN_ONE_MILLI);
}
// send repeat
sendSamsungLGRepeat();
}
IrReceiver.restartAfterSend();
}
//+=============================================================================
bool IRrecv::decodeSamsung() {
// Check we have enough data (68). The +4 is for initial gap, start bit mark and space + stop bit mark
if (decodedIRData.rawDataPtr->rawlen != ((2 * SAMSUNG_BITS) + 4)
&& decodedIRData.rawDataPtr->rawlen != ((2 * SAMSUNG48_BITS) + 4) && (decodedIRData.rawDataPtr->rawlen != 6)) {
IR_DEBUG_PRINT(F("Samsung: "));
IR_DEBUG_PRINT(F("Data length="));
IR_DEBUG_PRINT(decodedIRData.rawDataPtr->rawlen);
IR_DEBUG_PRINTLN(F(" is not 68 or 100 or 6"));
return false;
}
// Check header "mark" + "space"
if (!matchMark(decodedIRData.rawDataPtr->rawbuf[1], SAMSUNG_HEADER_MARK)
|| !matchSpace(decodedIRData.rawDataPtr->rawbuf[2], SAMSUNG_HEADER_SPACE)) {
IR_DEBUG_PRINT(F("Samsung: "));
IR_DEBUG_PRINTLN(F("Header mark or space length is wrong"));
return false;
}
// Check for SansungLG style repeat
if (decodedIRData.rawDataPtr->rawlen == 6) {
decodedIRData.flags = IRDATA_FLAGS_IS_REPEAT | IRDATA_FLAGS_IS_LSB_FIRST;
decodedIRData.address = lastDecodedAddress;
decodedIRData.command = lastDecodedCommand;
decodedIRData.protocol = SAMSUNG_LG;
return true;
}
if (decodedIRData.rawDataPtr->rawlen == (2 * SAMSUNG48_BITS) + 4) {
/*
* Samsung48
*/
// decode 16 bit address
if (!decodePulseDistanceData(SAMSUNG_ADDRESS_BITS, 3, SAMSUNG_BIT_MARK, SAMSUNG_ONE_SPACE, SAMSUNG_ZERO_SPACE,
PROTOCOL_IS_LSB_FIRST)) {
IR_DEBUG_PRINT(F("Samsung: "));
IR_DEBUG_PRINTLN(F("Decode failed"));
return false;
}
decodedIRData.address = decodedIRData.decodedRawData;
// decode 32 bit command
if (!decodePulseDistanceData(SAMSUNG_COMMAND32_BITS, 3, SAMSUNG_BIT_MARK, SAMSUNG_ONE_SPACE, SAMSUNG_ZERO_SPACE,
PROTOCOL_IS_LSB_FIRST)) {
IR_DEBUG_PRINT(F("Samsung: "));
IR_DEBUG_PRINTLN(F("Decode failed"));
return false;
}
// Success
// decodedIRData.flags = IRDATA_FLAGS_IS_LSB_FIRST; // Not required, since this is the start value
LongUnion tValue;
tValue.ULong = decodedIRData.decodedRawData;
// receive 2 * (8 bits then 8 inverted bits) LSB first
if (tValue.UByte.HighByte != (uint8_t) (~tValue.UByte.MidHighByte)
&& tValue.UByte.MidLowByte != (uint8_t) (~tValue.UByte.LowByte)) {
decodedIRData.flags = IRDATA_FLAGS_PARITY_FAILED | IRDATA_FLAGS_IS_LSB_FIRST;
}
decodedIRData.command = tValue.UByte.HighByte << 8 | tValue.UByte.MidLowByte;
decodedIRData.numberOfBits = SAMSUNG48_BITS;
} else {
/*
* Samsung32
*/
if (!decodePulseDistanceData(SAMSUNG_BITS, 3, SAMSUNG_BIT_MARK, SAMSUNG_ONE_SPACE, SAMSUNG_ZERO_SPACE,
PROTOCOL_IS_LSB_FIRST)) {
IR_DEBUG_PRINT(F("Samsung: "));
IR_DEBUG_PRINTLN(F("Decode failed"));
return false;
}
LongUnion tValue;
tValue.ULong = decodedIRData.decodedRawData;
decodedIRData.address = tValue.UWord.LowWord;
if (tValue.UByte.MidHighByte == (uint8_t) (~tValue.UByte.HighByte)) {
// 8 bit command protocol
decodedIRData.command = tValue.UByte.MidHighByte; // first 8 bit
} else {
// 16 bit command protocol
decodedIRData.command = tValue.UWord.HighWord; // first 16 bit
}
decodedIRData.numberOfBits = SAMSUNG_BITS;
}
// check for repeat
if (decodedIRData.rawDataPtr->rawbuf[0] < ((SAMSUNG_REPEAT_SPACE + (SAMSUNG_REPEAT_SPACE / 4)) / MICROS_PER_TICK)) {
decodedIRData.flags |= IRDATA_FLAGS_IS_REPEAT;
}
decodedIRData.protocol = SAMSUNG;
return true;
}
bool IRrecv::decodeSAMSUNG(decode_results *aResults) {
unsigned int offset = 1; // Skip first space
// Initial mark
if (!matchMark(aResults->rawbuf[offset], SAMSUNG_HEADER_MARK)) {
return false;
}
offset++;
// Check for repeat -- like a NEC repeat
if ((aResults->rawlen == 4) && matchSpace(aResults->rawbuf[offset], 2250)
&& matchMark(aResults->rawbuf[offset + 1], SAMSUNG_BIT_MARK)) {
aResults->bits = 0;
aResults->value = 0xFFFFFFFF;
decodedIRData.flags = IRDATA_FLAGS_IS_REPEAT;
decodedIRData.protocol = SAMSUNG;
return true;
}
if (aResults->rawlen < (2 * SAMSUNG_BITS) + 4) {
return false;
}
// Initial space
if (!matchSpace(aResults->rawbuf[offset], SAMSUNG_HEADER_SPACE)) {
return false;
}
offset++;
if (!decodePulseDistanceData(SAMSUNG_BITS, offset, SAMSUNG_BIT_MARK, SAMSUNG_ONE_SPACE, SAMSUNG_ZERO_SPACE,
PROTOCOL_IS_MSB_FIRST)) {
return false;
}
// Success
aResults->value = decodedIRData.decodedRawData;
aResults->bits = SAMSUNG_BITS;
aResults->decode_type = SAMSUNG;
decodedIRData.protocol = SAMSUNG;
return true;
}
// Old version with MSB first
void IRsend::sendSAMSUNG(unsigned long data, int nbits) {
// Set IR carrier frequency
enableIROut(SAMSUNG_KHZ);
// Header
mark(SAMSUNG_HEADER_MARK);
space(SAMSUNG_HEADER_SPACE);
// Old version with MSB first Data + stop bit
sendPulseDistanceWidthData(SAMSUNG_BIT_MARK, SAMSUNG_ONE_SPACE, SAMSUNG_BIT_MARK, SAMSUNG_ZERO_SPACE, data, nbits,
PROTOCOL_IS_MSB_FIRST, SEND_STOP_BIT);
IrReceiver.restartAfterSend();
}
/** @}*/
#endif // _IR_SAMSUNG_HPP
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