69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
/*
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* © 2021, Neil McKechnie. All rights reserved.
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*
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* This file is part of DCC++EX API
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*
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* This is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* It is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with CommandStation. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "DCC.h"
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#include "IODevice.h"
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#include "DIAG.h"
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#include "defines.h"
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#define PACKEDADDRESS(addr, subaddr) (((addr) << 2) + (subaddr))
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#define ADDRESS(packedaddr) ((packedaddr) >> 2)
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#define SUBADDRESS(packedaddr) ((packedaddr) % 4)
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void DCCAccessoryDecoder::create(VPIN firstVpin, int nPins, int DCCAddress, int DCCSubaddress) {
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if (checkNoOverlap(firstVpin,nPins)) new DCCAccessoryDecoder(firstVpin, nPins, DCCAddress, DCCSubaddress);
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}
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// Constructors
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DCCAccessoryDecoder::DCCAccessoryDecoder(VPIN vpin, int nPins, int DCCAddress, int DCCSubaddress) {
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_firstVpin = vpin;
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_nPins = nPins;
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_packedAddress = PACKEDADDRESS(DCCAddress, DCCSubaddress);
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addDevice(this);
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}
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void DCCAccessoryDecoder::_begin() {
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#if defined(DIAG_IO)
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_display();
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#endif
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}
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// Device-specific write function. State 1=closed, 0=thrown. Adjust for RCN-213 compliance
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void DCCAccessoryDecoder::_write(VPIN id, int state) {
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int packedAddress = _packedAddress + id - _firstVpin;
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#if defined(HAL_ACCESSORY_COMMAND_REVERSE)
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state = !state;
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#ifdef DIAG_IO
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DIAG(F("DCC Write Linear Address:%d State:%d (inverted)"), packedAddress, state);
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#endif
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#else
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#ifdef DIAG_IO
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DIAG(F("DCC Write Linear Address:%d State:%d"), packedAddress, state);
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#endif
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#endif
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DCC::setAccessory(ADDRESS(packedAddress), SUBADDRESS(packedAddress), state);
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}
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void DCCAccessoryDecoder::_display() {
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int endAddress = _packedAddress + _nPins - 1;
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DIAG(F("DCCAccessoryDecoder Configured on Vpins:%u-%u Addresses %d/%d-%d/%d)"), _firstVpin, _firstVpin+_nPins-1,
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ADDRESS(_packedAddress), SUBADDRESS(_packedAddress), ADDRESS(endAddress), SUBADDRESS(endAddress));
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}
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