249 lines
10 KiB
C++
249 lines
10 KiB
C++
/*
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* ir_MagiQuest.hpp
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*
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* Contains functions for receiving and sending MagiQuest Protocol
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* Based off the Magiquest fork of Arduino-IRremote by mpflaga https://github.com/mpflaga/Arduino-IRremote/
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*
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* RESULT:
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* The 31 bit wand ID is available in decodedRawData.
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* The lower 16 bit of the ID is available in address.
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* The magnitude is available in command.
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*
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* This file is part of Arduino-IRremote https://github.com/Arduino-IRremote/Arduino-IRremote.
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*
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************************************************************************************
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* MIT License
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*
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* Copyright (c) 2017-2023 E. Stuart Hicks <ehicks@binarymagi.com>, Armin Joachimsmeyer
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is furnished
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* to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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************************************************************************************
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*/
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#ifndef _IR_MAGIQUEST_HPP
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#define _IR_MAGIQUEST_HPP
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#if defined(DEBUG) && !defined(LOCAL_DEBUG)
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#define LOCAL_DEBUG
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#else
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//#define LOCAL_DEBUG // This enables debug output only for this file
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#endif
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//
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//==============================================================================
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//
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// M M AA GGG III QQQ U U EEEE SSS TTTTTT
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// MM MM A A G I Q Q U U E S TT
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// M M M AAAA G GG I Q Q U U EEE SSS TT
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// M M A A G G I Q QQ U U E S TT
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// M M A A GGG III QQQQ UUU EEEE SSSS TT
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// Q
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//==============================================================================
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/*
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* https://github.com/kitlaan/Arduino-IRremote/blob/master/ir_Magiquest.cpp
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* https://github.com/Arduino-IRremote/Arduino-IRremote/discussions/1027#discussioncomment-3636857
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* https://github.com/Arduino-IRremote/Arduino-IRremote/issues/1015#issuecomment-1222247231
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Protocol=MagiQuest Address=0xFF00 Command=0x176 Raw-Data=0x6BCDFF00 56 bits MSB first
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+ 250,- 800 + 250,- 850 + 250,- 850 + 250,- 850 // 8 zero start bits
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+ 250,- 850 + 300,- 800 + 250,- 850 + 250,- 850
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// 31 ID bits
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+ 550,- 600 + 550,- 550 + 350,- 800 + 600,- 600 // 110 1 6
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+ 200,- 950 + 550,- 600 + 550,- 600 + 550,- 600 // 011 1 B - 1(from above)011 => B
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+ 550,- 600 + 250,- 900 + 300,- 850 + 550,- 600 // 100 1 C
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+ 550,- 600 + 300,- 850 + 550,- 600 + 550,- 600
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+ 550,- 600 + 550,- 600 + 550,- 600 + 550,- 600
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+ 550,- 600 + 550,- 600 + 550,- 600 + 300,- 800
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+ 350,- 850 + 300,- 850 + 300,- 850 + 300,- 850
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+ 300,- 850 + 300,- 850 + 300,- 850 + 550,- 600 // 000 1 - 3 LSB ID bits 000 + 1 MSB magnitude bit 1
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// 8 bit magnitude
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+ 300,- 850 + 550,- 600 + 550,- 600 + 550,- 600
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+ 300,- 850 + 550,- 600 + 550,- 600 + 250,- 900
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// Checksum (+ sum of the 5 bytes before == 0)
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+ 250,- 900 + 300,- 900 + 250,- 850 + 550,- 600
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+ 600,- 550 + 300,- 900 + 250,- 850 + 550
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*/
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// MSB first, 8 start bits (zero), 31 wand id bits, 9 magnitude bits 8 checksum bits and no stop bit => 56 bits
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#define MAGIQUEST_CHECKSUM_BITS 8 // magiquest_t.cmd.checksum
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#define MAGIQUEST_MAGNITUDE_BITS 9 // magiquest_t.cmd.magnitude
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#define MAGIQUEST_WAND_ID_BITS 31 // magiquest_t.cmd.wand_id -> wand-id is handled as 32 bit and always even
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#define MAGIQUEST_START_BITS 8 // magiquest_t.cmd.StartBits
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#define MAGIQUEST_PERIOD 1150 // Time for a full MagiQuest "bit" (1100 - 1200 usec)
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#define MAGIQUEST_DATA_BITS (MAGIQUEST_CHECKSUM_BITS + MAGIQUEST_MAGNITUDE_BITS + MAGIQUEST_WAND_ID_BITS) // 48 Size of the command without the start bits
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#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
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/*
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* 0 = 25% mark & 75% space across 1 period
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* 1150 * 0.25 = 288 usec mark
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* 1150 - 288 = 862 usec space
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* 1 = 50% mark & 50% space across 1 period
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* 1150 * 0.5 = 575 usec mark
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* 1150 - 575 = 575 usec space
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*/
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#define MAGIQUEST_UNIT (MAGIQUEST_PERIOD / 4) // 287.5
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#define MAGIQUEST_ONE_MARK (2 * MAGIQUEST_UNIT) // 576
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#define MAGIQUEST_ONE_SPACE (2 * MAGIQUEST_UNIT) // 576
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#define MAGIQUEST_ZERO_MARK MAGIQUEST_UNIT // 287.5
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#define MAGIQUEST_ZERO_SPACE (3 * MAGIQUEST_UNIT) // 864
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// assume 110 as repeat period
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struct PulseDistanceWidthProtocolConstants MagiQuestProtocolConstants = { MAGIQUEST, 38, MAGIQUEST_ZERO_MARK, MAGIQUEST_ZERO_SPACE,
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MAGIQUEST_ONE_MARK, MAGIQUEST_ONE_SPACE, MAGIQUEST_ZERO_MARK, MAGIQUEST_ZERO_SPACE, PROTOCOL_IS_MSB_FIRST, 110, NULL };
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//+=============================================================================
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//
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/**
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* @param aWandId 31 bit ID
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* @param aMagnitude 9 bit Magnitude
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*/
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void IRsend::sendMagiQuest(uint32_t aWandId, uint16_t aMagnitude) {
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// Set IR carrier frequency
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enableIROut(38);
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aMagnitude &= 0x1FF; // we have 9 bit
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LongUnion tWandId;
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tWandId.ULong = aWandId << 1;
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uint8_t tChecksum = (tWandId.Bytes[0]) + tWandId.Bytes[1] + tWandId.Bytes[2] + tWandId.Bytes[3];
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tChecksum += aMagnitude + (aMagnitude >> 8);
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tChecksum = ~tChecksum + 1;
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// 8 start bits
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sendPulseDistanceWidthData(&MagiQuestProtocolConstants, 0, 8);
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// 48 bit data
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sendPulseDistanceWidthData(&MagiQuestProtocolConstants, aWandId, MAGIQUEST_WAND_ID_BITS); // send only 31 bit, do not send MSB here
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sendPulseDistanceWidthData(&MagiQuestProtocolConstants, aMagnitude, MAGIQUEST_MAGNITUDE_BITS);
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sendPulseDistanceWidthData(&MagiQuestProtocolConstants, tChecksum, MAGIQUEST_CHECKSUM_BITS);
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#if defined(LOCAL_DEBUG)
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// must be after sending, in order not to destroy the send timing
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Serial.print(F("MagiQuest checksum=0x"));
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Serial.println(tChecksum, HEX);
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#endif
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}
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//+=============================================================================
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//
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/*
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* decodes a 56 bit result, which is not really compatible with standard decoder layout
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* magnitude is stored in command
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* 31 bit wand_id is stored in decodedRawData
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* lower 16 bit of wand_id is stored in address
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*/
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bool IRrecv::decodeMagiQuest() {
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// Check we have the right amount of data, magnitude and ID bits and 8 start bits + 0 stop bit
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if (decodedIRData.rawDataPtr->rawlen != (2 * MAGIQUEST_BITS)) {
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IR_DEBUG_PRINT(F("MagiQuest: "));
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IR_DEBUG_PRINT(F("Data length="));
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IR_DEBUG_PRINT(decodedIRData.rawDataPtr->rawlen);
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IR_DEBUG_PRINTLN(F(" is not 112"));
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return false;
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}
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/*
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* Check for 8 zero header bits
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*/
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if (!decodePulseDistanceWidthData(&MagiQuestProtocolConstants, MAGIQUEST_START_BITS, 1)) {
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#if defined(LOCAL_DEBUG)
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Serial.print(F("MagiQuest: "));
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Serial.println(F("Start bit decode failed"));
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#endif
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return false;
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}
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if (decodedIRData.decodedRawData != 0) {
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#if defined(LOCAL_DEBUG)
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Serial.print(F("MagiQuest: "));
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Serial.print(F("Not 8 leading zero start bits received, RawData=0x"));
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Serial.println(decodedIRData.decodedRawData, HEX);
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#endif
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return false;
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}
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/*
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* Decode the 31 bit ID
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*/
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if (!decodePulseDistanceWidthData(&MagiQuestProtocolConstants, MAGIQUEST_WAND_ID_BITS, (MAGIQUEST_START_BITS * 2) + 1)) {
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#if defined(LOCAL_DEBUG)
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Serial.print(F("MagiQuest: "));
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Serial.println(F("ID decode failed"));
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#endif
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return false;
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}
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LongUnion tDecodedRawData;
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#if defined(LOCAL_DEBUG)
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Serial.print(F("31 bit WandId=0x"));
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Serial.println(decodedIRData.decodedRawData, HEX);
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#endif
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uint32_t tWandId = decodedIRData.decodedRawData; // save tWandId for later use
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tDecodedRawData.ULong = decodedIRData.decodedRawData << 1; // shift for checksum computation
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uint8_t tChecksum = tDecodedRawData.Bytes[0] + tDecodedRawData.Bytes[1] + tDecodedRawData.Bytes[2] + tDecodedRawData.Bytes[3];
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#if defined(LOCAL_DEBUG)
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Serial.print(F("31 bit WandId=0x"));
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Serial.print(decodedIRData.decodedRawData, HEX);
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Serial.print(F(" shifted=0x"));
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Serial.println(tDecodedRawData.ULong, HEX);
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#endif
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/*
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* Decode the 9 bit Magnitude + 8 bit checksum
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*/
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if (!decodePulseDistanceWidthData(&MagiQuestProtocolConstants, MAGIQUEST_MAGNITUDE_BITS + MAGIQUEST_CHECKSUM_BITS,
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((MAGIQUEST_WAND_ID_BITS + MAGIQUEST_START_BITS) * 2) + 1)) {
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#if defined(LOCAL_DEBUG)
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Serial.print(F("MagiQuest: "));
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Serial.println(F("Magnitude + checksum decode failed"));
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#endif
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return false;
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}
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#if defined(LOCAL_DEBUG)
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Serial.print(F("Magnitude + checksum=0x"));
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Serial.println(decodedIRData.decodedRawData, HEX);
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#endif
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tDecodedRawData.ULong = decodedIRData.decodedRawData;
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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
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tChecksum += tDecodedRawData.UBytes[2] /* only one bit */+ tDecodedRawData.UBytes[1] + tDecodedRawData.UBytes[0];
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if (tChecksum != 0) {
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decodedIRData.flags |= IRDATA_FLAGS_PARITY_FAILED;
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#if defined(LOCAL_DEBUG)
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Serial.print(F("Checksum 0x"));
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Serial.print(tChecksum, HEX);
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Serial.println(F(" is not 0"));
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#endif
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}
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// Success
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decodedIRData.decodedRawData = tWandId; // 31 bit wand_id
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decodedIRData.address = tWandId; // lower 16 bit of wand_id
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decodedIRData.extra = tWandId >> 16; // upper 15 bit of wand_id
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decodedIRData.protocol = MAGIQUEST;
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decodedIRData.numberOfBits = MAGIQUEST_BITS;
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decodedIRData.flags = IRDATA_FLAGS_IS_MSB_FIRST;
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return true;
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}
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#if defined(LOCAL_DEBUG)
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#undef LOCAL_DEBUG
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#endif
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#endif // _IR_MAGIQUEST_HPP
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