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ir_MagiQuest.hpp
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/*
* ir_MagiQuest.hpp
*
* Contains functions for receiving and sending MagiQuest Protocol
* Based off the Magiquest fork of Arduino-IRremote by mpflaga https://github.com/mpflaga/Arduino-IRremote/
*
* RESULT:
* The 31 bit wand ID is available in decodedRawData.
* The lower 16 bit of the ID is available in address.
* The magnitude is available in command.
*
* This file is part of Arduino-IRremote https://github.com/Arduino-IRremote/Arduino-IRremote.
*
************************************************************************************
* MIT License
*
* Copyright (c) 2017-2024 E. Stuart Hicks <ehicks@binarymagi.com>, 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 CONNECTION WITH THE SOFTWARE
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
************************************************************************************
*/
#ifndef _IR_MAGIQUEST_HPP
#define _IR_MAGIQUEST_HPP
#if defined(DEBUG) && !defined(LOCAL_DEBUG)
#define LOCAL_DEBUG
#else
//#define LOCAL_DEBUG // This enables debug output only for this file
#endif
//
//==============================================================================
//
// M M AA GGG III QQQ U U EEEE SSS TTTTTT
// MM MM A A G I Q Q U U E S TT
// M M M AAAA G GG I Q Q U U EEE SSS TT
// M M A A G G I Q QQ U U E S TT
// M M A A GGG III QQQQ UUU EEEE SSSS TT
// Q
//==============================================================================
/*
* https://github.com/kitlaan/Arduino-IRremote/blob/master/ir_Magiquest.cpp
* https://github.com/Arduino-IRremote/Arduino-IRremote/discussions/1027#discussioncomment-3636857
* https://github.com/Arduino-IRremote/Arduino-IRremote/issues/1015#issuecomment-1222247231
Protocol=MagiQuest Address=0xFF00 Command=0x176 Raw-Data=0x6BCDFF00 56 bits MSB first
+ 250,- 800 + 250,- 850 + 250,- 850 + 250,- 850 // 8 zero start bits
+ 250,- 850 + 300,- 800 + 250,- 850 + 250,- 850
// 31 ID bits
+ 550,- 600 + 550,- 550 + 350,- 800 + 600,- 600 // 110 1 6
+ 200,- 950 + 550,- 600 + 550,- 600 + 550,- 600 // 011 1 B - 1(from above)011 => B
+ 550,- 600 + 250,- 900 + 300,- 850 + 550,- 600 // 100 1 C
+ 550,- 600 + 300,- 850 + 550,- 600 + 550,- 600
+ 550,- 600 + 550,- 600 + 550,- 600 + 550,- 600
+ 550,- 600 + 550,- 600 + 550,- 600 + 300,- 800
+ 350,- 850 + 300,- 850 + 300,- 850 + 300,- 850
+ 300,- 850 + 300,- 850 + 300,- 850 + 550,- 600 // 000 1 - 3 LSB ID bits 000 + 1 MSB magnitude bit 1
// 8 bit magnitude
+ 300,- 850 + 550,- 600 + 550,- 600 + 550,- 600
+ 300,- 850 + 550,- 600 + 550,- 600 + 250,- 900
// Checksum (+ sum of the 5 bytes before == 0)
+ 250,- 900 + 300,- 900 + 250,- 850 + 550,- 600
+ 600,- 550 + 300,- 900 + 250,- 850 + 550
// No stop bit!
*/
// MSB first, 8 start bits (zero), 31 wand id bits, 9 magnitude bits 8 checksum bits and no stop bit => 56 bits
#define MAGIQUEST_CHECKSUM_BITS 8 // magiquest_t.cmd.checksum
#define MAGIQUEST_MAGNITUDE_BITS 9 // magiquest_t.cmd.magnitude
#define MAGIQUEST_WAND_ID_BITS 31 // magiquest_t.cmd.wand_id -> wand-id is handled as 32 bit and always even
#define MAGIQUEST_START_BITS 8 // magiquest_t.cmd.StartBits
#define MAGIQUEST_PERIOD 1150 // Time for a full MagiQuest "bit" (1100 - 1200 usec)
#define MAGIQUEST_DATA_BITS (MAGIQUEST_CHECKSUM_BITS + MAGIQUEST_MAGNITUDE_BITS + MAGIQUEST_WAND_ID_BITS) // 48 Size of the command without the start bits
#define MAGIQUEST_BITS (MAGIQUEST_CHECKSUM_BITS + MAGIQUEST_MAGNITUDE_BITS + MAGIQUEST_WAND_ID_BITS + MAGIQUEST_START_BITS) // 56 Size of the command with the start bits
/*
* 0 = 25% mark & 75% space across 1 period
* 1150 * 0.25 = 288 usec mark
* 1150 - 288 = 862 usec space
* 1 = 50% mark & 50% space across 1 period
* 1150 * 0.5 = 575 usec mark
* 1150 - 575 = 575 usec space
*/
#define MAGIQUEST_UNIT (MAGIQUEST_PERIOD / 4) // 287.5
#define MAGIQUEST_ONE_MARK (2 * MAGIQUEST_UNIT) // 576
#define MAGIQUEST_ONE_SPACE (2 * MAGIQUEST_UNIT) // 576
#define MAGIQUEST_ZERO_MARK MAGIQUEST_UNIT // 287.5
#define MAGIQUEST_ZERO_SPACE (3 * MAGIQUEST_UNIT) // 864
// assume 110 as repeat period
struct PulseDistanceWidthProtocolConstants MagiQuestProtocolConstants = { MAGIQUEST, 38, MAGIQUEST_ZERO_MARK, MAGIQUEST_ZERO_SPACE,
MAGIQUEST_ONE_MARK, MAGIQUEST_ONE_SPACE, MAGIQUEST_ZERO_MARK, MAGIQUEST_ZERO_SPACE, PROTOCOL_IS_MSB_FIRST | SUPPRESS_STOP_BIT, 110,
NULL };
//+=============================================================================
//
/**
* @param aWandId 31 bit ID
* @param aMagnitude 9 bit Magnitude
*/
void IRsend::sendMagiQuest(uint32_t aWandId, uint16_t aMagnitude) {
// Set IR carrier frequency
enableIROut(38);
aMagnitude &= 0x1FF; // we have 9 bit
LongUnion tWandId;
tWandId.ULong = aWandId << 1;
uint8_t tChecksum = (tWandId.Bytes[0]) + tWandId.Bytes[1] + tWandId.Bytes[2] + tWandId.Bytes[3];
tChecksum += aMagnitude + (aMagnitude >> 8);
tChecksum = ~tChecksum + 1;
// 8 start bits
sendPulseDistanceWidthData(&MagiQuestProtocolConstants, 0, 8);
// 48 bit data
sendPulseDistanceWidthData(&MagiQuestProtocolConstants, aWandId, MAGIQUEST_WAND_ID_BITS); // send only 31 bit, do not send MSB here
sendPulseDistanceWidthData(&MagiQuestProtocolConstants, aMagnitude, MAGIQUEST_MAGNITUDE_BITS);
sendPulseDistanceWidthData(&MagiQuestProtocolConstants, tChecksum, MAGIQUEST_CHECKSUM_BITS);
#if defined(LOCAL_DEBUG)
// must be after sending, in order not to destroy the send timing
Serial.print(F("MagiQuest checksum=0x"));
Serial.println(tChecksum, HEX);
#endif
}
//+=============================================================================
//
/*
* decodes a 56 bit result, which is not really compatible with standard decoder layout
* magnitude is stored in command
* 31 bit wand_id is stored in decodedRawData
* lower 16 bit of wand_id is stored in address
*/
bool IRrecv::decodeMagiQuest() {
// Check we have the right amount of data, magnitude and ID bits and 8 start bits + 0 stop bit
if (decodedIRData.rawlen != (2 * MAGIQUEST_BITS)) {
IR_DEBUG_PRINT(F("MagiQuest: "));
IR_DEBUG_PRINT(F("Data length="));
IR_DEBUG_PRINT(decodedIRData.rawlen);
IR_DEBUG_PRINTLN(F(" is not 112"));
return false;
}
/*
* Check for 8 zero header bits
*/
if (!decodePulseDistanceWidthData(&MagiQuestProtocolConstants, MAGIQUEST_START_BITS, 1)) {
#if defined(LOCAL_DEBUG)
Serial.print(F("MagiQuest: "));
Serial.println(F("Start bit decode failed"));
#endif
return false;
}
if (decodedIRData.decodedRawData != 0) {
#if defined(LOCAL_DEBUG)
Serial.print(F("MagiQuest: "));
Serial.print(F("Not 8 leading zero start bits received, RawData=0x"));
Serial.println(decodedIRData.decodedRawData, HEX);
#endif
return false;
}
/*
* Decode the 31 bit ID
*/
if (!decodePulseDistanceWidthData(&MagiQuestProtocolConstants, MAGIQUEST_WAND_ID_BITS, (MAGIQUEST_START_BITS * 2) + 1)) {
#if defined(LOCAL_DEBUG)
Serial.print(F("MagiQuest: "));
Serial.println(F("ID decode failed"));
#endif
return false;
}
LongUnion tDecodedRawData;
#if defined(LOCAL_DEBUG)
Serial.print(F("31 bit WandId=0x"));
Serial.println(decodedIRData.decodedRawData, HEX);
#endif
uint32_t tWandId = decodedIRData.decodedRawData; // save tWandId for later use
tDecodedRawData.ULong = decodedIRData.decodedRawData << 1; // shift for checksum computation
uint8_t tChecksum = tDecodedRawData.Bytes[0] + tDecodedRawData.Bytes[1] + tDecodedRawData.Bytes[2] + tDecodedRawData.Bytes[3];
#if defined(LOCAL_DEBUG)
Serial.print(F("31 bit WandId=0x"));
Serial.print(decodedIRData.decodedRawData, HEX);
Serial.print(F(" shifted=0x"));
Serial.println(tDecodedRawData.ULong, HEX);
#endif
/*
* Decode the 9 bit Magnitude + 8 bit checksum
*/
if (!decodePulseDistanceWidthData(&MagiQuestProtocolConstants, MAGIQUEST_MAGNITUDE_BITS + MAGIQUEST_CHECKSUM_BITS,
((MAGIQUEST_WAND_ID_BITS + MAGIQUEST_START_BITS) * 2) + 1)) {
#if defined(LOCAL_DEBUG)
Serial.print(F("MagiQuest: "));
Serial.println(F("Magnitude + checksum decode failed"));
#endif
return false;
}
#if defined(LOCAL_DEBUG)
Serial.print(F("Magnitude + checksum=0x"));
Serial.println(decodedIRData.decodedRawData, HEX);
#endif
tDecodedRawData.ULong = decodedIRData.decodedRawData;
decodedIRData.command = tDecodedRawData.UBytes[1] | tDecodedRawData.UBytes[2] << 8; // Values observed are 0x102,01,04,37,05,38,2D| 02,06,04|03,103,12,18,0E|09
tChecksum += tDecodedRawData.UBytes[2] /* only one bit */+ tDecodedRawData.UBytes[1] + tDecodedRawData.UBytes[0];
if (tChecksum != 0) {
decodedIRData.flags |= IRDATA_FLAGS_PARITY_FAILED;
#if defined(LOCAL_DEBUG)
Serial.print(F("Checksum 0x"));
Serial.print(tChecksum, HEX);
Serial.println(F(" is not 0"));
#endif
}
// Success
decodedIRData.decodedRawData = tWandId; // 31 bit wand_id
decodedIRData.address = tWandId; // lower 16 bit of wand_id
decodedIRData.extra = tWandId >> 16; // upper 15 bit of wand_id
decodedIRData.protocol = MAGIQUEST;
decodedIRData.numberOfBits = MAGIQUEST_BITS;
decodedIRData.flags = IRDATA_FLAGS_IS_MSB_FIRST;
return true;
}
#if defined(LOCAL_DEBUG)
#undef LOCAL_DEBUG
#endif
#endif // _IR_MAGIQUEST_HPP