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0b6b7bcb0d
...
0712eef97a
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@ -210,7 +210,6 @@ void RMFT2::ComandFilter(Print * stream, byte & opcode, byte & paramCount, int16
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default:
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default:
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break;
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break;
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}
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}
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break;
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case 'K': // <K blockid loco> Block enter
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case 'K': // <K blockid loco> Block enter
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case 'k': // <k blockid loco> Block exit
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case 'k': // <k blockid loco> Block exit
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@ -50,7 +50,6 @@
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#include "I2CManager.h"
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#include "I2CManager.h"
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#include "DIAG.h"
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#include "DIAG.h"
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#include "DCCWaveform.h"
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#include "DCCWaveform.h"
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#include "Railcom.h"
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// Debug and diagnostic defines, enable too many will result in slowing the driver
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// Debug and diagnostic defines, enable too many will result in slowing the driver
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#define DIAG_I2CRailcom
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#define DIAG_I2CRailcom
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@ -62,7 +61,6 @@ private:
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uint8_t _UART_CH=0x00;
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uint8_t _UART_CH=0x00;
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byte _inbuf[65];
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byte _inbuf[65];
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byte _outbuf[2];
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byte _outbuf[2];
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Railcom _channelMonitors[2];
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public:
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public:
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// Constructor
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// Constructor
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I2CRailcom(VPIN firstVpin, int nPins, I2CAddress i2cAddress){
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I2CRailcom(VPIN firstVpin, int nPins, I2CAddress i2cAddress){
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@ -122,9 +120,6 @@ public:
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for (int i = 0; i < inlength; i++){
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for (int i = 0; i < inlength; i++){
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DIAG(F("[0x%x]: 0x%x"), i, _inbuf[i]);
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DIAG(F("[0x%x]: 0x%x"), i, _inbuf[i]);
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}
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}
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auto locoid=_channelMonitors[_UART_CH].getChannel1Loco(_inbuf);
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DIAG(F("Railcom Channel1=%d"), locoid);
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#endif
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#endif
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}
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}
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169
Railcom.cpp
169
Railcom.cpp
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@ -1,169 +0,0 @@
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/*
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* SEE ADDITIONAL COPYRIGHT ATTRIBUTION BELOW
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* © 2024 Chris Harlow
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* All rights reserved.
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*
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* This file is part of DCC-EX
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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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/** Sections of this code (the decode table constants)
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* are taken from openmrn under the following copyright.
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*
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* Copyright (c) 2014, Balazs Racz
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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**/
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#include "Railcom.h"
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#include "FSH.h"
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/** Table for 8-to-6 decoding of railcom data. This table can be indexed by the
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* 8-bit value read from the railcom channel, and the return value will be
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* either a 6-bit number, or one of the defined Railcom constrantrs. If the
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* value is invalid, the INV constant is returned. */
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// These values appear in the railcom_decode table to mean special symbols.
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static constexpr uint8_t
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// highest valid 6-bit value
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MAX_VALID = 0x3F,
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/// invalid value (not conforming to the 4bit weighting requirement)
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INV = 0xff,
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/// Railcom ACK; the decoder received the message ok. NOTE: There are
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/// two codepoints that map to this.
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ACK = 0xfe,
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/// The decoder rejected the packet.
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NACK = 0xfd,
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/// The decoder is busy; send the packet again. This is typically
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/// returned when a POM CV write is still pending; the caller must
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/// re-try sending the packet later.
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RCBUSY = 0xfc,
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/// Reserved for future expansion.
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RESVD1 = 0xfb,
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/// Reserved for future expansion.
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RESVD2 = 0xfa;
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const uint8_t HIGHFLASH decode[256] =
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// 0|8 1|9 2|a 3|b 4|c 5|d 6|e 7|f
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{ INV, INV, INV, INV, INV, INV, INV, INV, // 0
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INV, INV, INV, INV, INV, INV, INV, ACK, // 0
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INV, INV, INV, INV, INV, INV, INV, 0x33, // 1
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INV, INV, INV, 0x34, INV, 0x35, 0x36, INV, // 1
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INV, INV, INV, INV, INV, INV, INV, 0x3A, // 2
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INV, INV, INV, 0x3B, INV, 0x3C, 0x37, INV, // 2
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INV, INV, INV, 0x3F, INV, 0x3D, 0x38, INV, // 3
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INV, 0x3E, 0x39, INV, NACK, INV, INV, INV, // 3
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INV, INV, INV, INV, INV, INV, INV, 0x24, // 4
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INV, INV, INV, 0x23, INV, 0x22, 0x21, INV, // 4
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INV, INV, INV, 0x1F, INV, 0x1E, 0x20, INV, // 5
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INV, 0x1D, 0x1C, INV, 0x1B, INV, INV, INV, // 5
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INV, INV, INV, 0x19, INV, 0x18, 0x1A, INV, // 6
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INV, 0x17, 0x16, INV, 0x15, INV, INV, INV, // 6
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INV, 0x25, 0x14, INV, 0x13, INV, INV, INV, // 7
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0x32, INV, INV, INV, INV, INV, INV, INV, // 7
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INV, INV, INV, INV, INV, INV, INV, RESVD2, // 8
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INV, INV, INV, 0x0E, INV, 0x0D, 0x0C, INV, // 8
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INV, INV, INV, 0x0A, INV, 0x09, 0x0B, INV, // 9
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INV, 0x08, 0x07, INV, 0x06, INV, INV, INV, // 9
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INV, INV, INV, 0x04, INV, 0x03, 0x05, INV, // a
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INV, 0x02, 0x01, INV, 0x00, INV, INV, INV, // a
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INV, 0x0F, 0x10, INV, 0x11, INV, INV, INV, // b
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0x12, INV, INV, INV, INV, INV, INV, INV, // b
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INV, INV, INV, RESVD1, INV, 0x2B, 0x30, INV, // c
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INV, 0x2A, 0x2F, INV, 0x31, INV, INV, INV, // c
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INV, 0x29, 0x2E, INV, 0x2D, INV, INV, INV, // d
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0x2C, INV, INV, INV, INV, INV, INV, INV, // d
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INV, RCBUSY, 0x28, INV, 0x27, INV, INV, INV, // e
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0x26, INV, INV, INV, INV, INV, INV, INV, // e
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ACK, INV, INV, INV, INV, INV, INV, INV, // f
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INV, INV, INV, INV, INV, INV, INV, INV, // f
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};
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/// Packet identifiers from Mobile Decoders.
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enum RailcomMobilePacketId
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{
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RMOB_POM = 0,
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RMOB_ADRHIGH = 1,
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RMOB_ADRLOW = 2,
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RMOB_EXT = 3,
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RMOB_DYN = 7,
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RMOB_XPOM0 = 8,
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RMOB_XPOM1 = 9,
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RMOB_XPOM2 = 10,
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RMOB_XPOM3 = 11,
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RMOB_SUBID = 12,
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RMOB_LOGON_ASSIGN_FEEDBACK = 13,
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RMOB_LOGON_ENABLE_FEEDBACK = 15,
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};
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Railcom::Railcom() {
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haveHigh=false;
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haveLow=false;
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}
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/* returns -1: Call again next packet
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0: No loco on track
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>0: loco id
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*/
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int16_t Railcom::getChannel1Loco(uint8_t * inbound) {
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auto v1=GETHIGHFLASH(decode,inbound[0]);
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if (v1>MAX_VALID) return -1;
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auto v2=GETHIGHFLASH(decode,inbound[1]);
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if (v2>MAX_VALID) return -1;
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auto packet=(v1<<6) | v2;
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// packet is 12 bits TTTTDDDDDDDD
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auto type=packet>>8;
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auto data= packet & 0xFF;
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if (type==RMOB_ADRHIGH) {
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holdoverHigh=data;
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haveHigh=true;
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}
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else if (type==RMOB_ADRLOW) {
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holdoverLow=data;
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haveLow=true;
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}
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else if (type==RMOB_EXT) {
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return -1; /* ignore*/
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}
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else {
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haveHigh=false;
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haveLow=false;
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return 0; // treat as no loco
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}
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if (haveHigh && haveLow) return ((holdoverHigh<<8)| holdoverLow);
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return -1; // call again, need next packet
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}
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35
Railcom.h
35
Railcom.h
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@ -1,35 +0,0 @@
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/*
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* © 2024 Chris Harlow
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* All rights reserved.
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*
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* This file is part of DCC-EX
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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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#ifndef Railcom_h
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#define Railcom_h
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#include "Arduino.h"
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class Railcom {
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public:
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Railcom();
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int16_t getChannel1Loco(uint8_t * inbound);
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private:
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uint8_t holdoverHigh,holdoverLow;
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bool haveHigh,haveLow;
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};
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#endif
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