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CommandStation-EX/DCCEXParser.h

80 lines
3.0 KiB
C++

/*
* © 2020, Chris Harlow. All rights reserved.
*
* This file is part of Asbelos DCC API
*
* This is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* It is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with CommandStation. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef DCCEXParser_h
#define DCCEXParser_h
#include <Arduino.h>
#include "FSH.h"
#include "RingStream.h"
typedef void (*FILTER_CALLBACK)(Print * stream, byte & opcode, byte & paramCount, int16_t p[]);
typedef void (*AT_COMMAND_CALLBACK)(const byte * command);
struct DCCEXParser
{
DCCEXParser();
void loop(Stream & stream);
void parse(Print * stream, byte * command, RingStream * ringStream);
void parse(const FSH * cmd);
void flush();
static void setFilter(FILTER_CALLBACK filter);
static void setRMFTFilter(FILTER_CALLBACK filter);
static void setAtCommandCallback(AT_COMMAND_CALLBACK filter);
static const int MAX_COMMAND_PARAMS=10; // Must not exceed this
private:
static const int16_t MAX_BUFFER=50; // longest command sent in
byte bufferLength=0;
bool inCommandPayload=false;
byte buffer[MAX_BUFFER+2];
int16_t splitValues( int16_t result[MAX_COMMAND_PARAMS], const byte * command);
int16_t splitHexValues( int16_t result[MAX_COMMAND_PARAMS], const byte * command);
bool parseT(Print * stream, int16_t params, int16_t p[]);
bool parseZ(Print * stream, int16_t params, int16_t p[]);
bool parseS(Print * stream, int16_t params, int16_t p[]);
bool parsef(Print * stream, int16_t params, int16_t p[]);
bool parseD(Print * stream, int16_t params, int16_t p[]);
static Print * getAsyncReplyStream();
static void commitAsyncReplyStream();
static bool stashBusy;
static byte stashTarget;
static Print * stashStream;
static RingStream * stashRingStream;
static int16_t stashP[MAX_COMMAND_PARAMS];
bool stashCallback(Print * stream, int16_t p[MAX_COMMAND_PARAMS], RingStream * ringStream);
static void callback_W(int16_t result);
static void callback_B(int16_t result);
static void callback_R(int16_t result);
static void callback_Rloco(int16_t result);
static void callback_Wloco(int16_t result);
static void callback_Vbit(int16_t result);
static void callback_Vbyte(int16_t result);
static FILTER_CALLBACK filterCallback;
static FILTER_CALLBACK filterRMFTCallback;
static AT_COMMAND_CALLBACK atCommandCallback;
static void funcmap(int16_t cab, byte value, byte fstart, byte fstop);
};
#endif