372 lines
12 KiB
C++
372 lines
12 KiB
C++
#include <avr/io.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include "serial.h"
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#include "writepin.h"
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#include "train.h"
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#include "eeprom.h"
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#include "bitrep.h"
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#define MAX_TRAINS 16
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#define COMMAND_BUFFER_SIZE 64
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#define SNPRINTF_BUFFER_SIZE 64
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#define EPPROM_SIZE 1024
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char buffer[SNPRINTF_BUFFER_SIZE];
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uint16_t storedTrains = 0;
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Train trains[MAX_TRAINS];
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bool autoff = true;
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bool powerIsOn = true;
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#define TICK_MAX 255
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volatile uint8_t tick = 0;
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volatile bool resendEvent = false;
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ISR(TIMER0_OVF_vect)
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{
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++tick;
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if(tick == 0) resendEvent = true;
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if((tick & 0b00000111) < 1) Train::setOutput(Train::HIGH);
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else Train::setOutput(Train::LOW);
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}
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void timer0InterruptEnable(const bool enable)
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{
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if(enable) TIMSK0 = 0b00000001;
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else TIMSK0 = 0b00000000;
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}
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void save_state()
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{
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cli();
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EEPROM_write_char( 0, storedTrains );
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EEPROM_write_char( 1, autoff );
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for(uint16_t i = 0; i < storedTrains; i++)
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{
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EEPROM_write_char( i*2+32, trains[i].getAddress());
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EEPROM_write_char( i*2+32+1, trains[i].getProtocol());
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}
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sei();
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}
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void restore_state()
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{
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storedTrains = EEPROM_read_char(0);
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autoff = EEPROM_read_char(1);
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if(storedTrains > MAX_TRAINS )
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{
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for(uint16_t i = 0; i < EPPROM_SIZE; i++) EEPROM_write_char(i, 0);
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storedTrains = 0;
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}
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else for(uint8_t i = 0; i < storedTrains; i++)
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{
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trains[i].setAddress(EEPROM_read_char(32+i*2));
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trains[i].setProtocol(EEPROM_read_char(32+1+i*2));
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}
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}
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inline static void printHelp(Serial* serial)
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{
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serial->write_p(PSTR("Available Commands: \n\
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help : Show this prompt.\n\
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train add [address] : Add train.\n\
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train delete : Delete last train.\n\
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train list : Print list of saved trains.\n\
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train [nn] stop : Stop nth train.\n\
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train [nn] speed [sp] : Set nth train speed.\n\
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train [nn] function [x] : Toggle x'ed fuction on train n.\n\
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train [nn] reverse : Reverse train n.\n\
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stop : stop all trains\n\
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power off : power off the rail\n\
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power on : power on the rail\n\
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power auto : power off the rail when no trains are moveing\n\
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dump : prints epprom contence\n\
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erase : Erase epprom.\n"));
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}
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void trainDispatch(char* inBuffer, Serial* serial)
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{
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cli();
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if( strcmp(inBuffer, "add") == 0 )
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{
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char* token = strtok(NULL, " ");
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uint8_t address = 0;
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if(token != NULL) address = strtol(token, nullptr, 2 );
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if(address != 0 && storedTrains < MAX_TRAINS)
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{
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trains[storedTrains].setAddress(address);
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token = strtok(NULL, " ");
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if(token != NULL && strcmp(token, "delta") == 0 ) trains[storedTrains].setProtocol(Train::M_DELTA);
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else trains[storedTrains].setProtocol(Train::M_DIGITAL);
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uint8_t size = snprintf(buffer, SNPRINTF_BUFFER_SIZE, "TRAIN saved! NUMBER: %u ADRESS: %s%s PROTCOL: %s\n", storedTrains, bit_rep[address >> 4], bit_rep[address & 0x0F], trains[storedTrains].getProtocol() == Train::M_DELTA ? "delta" : "digital" );
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serial->write(buffer, size);
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storedTrains++;
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save_state();
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}
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serial->write_p(PSTR("Usage: train add [address]"));
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}
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else if( strcmp(inBuffer, "delete") == 0)
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{
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serial->write_p(PSTR("Train: "));
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serial->write(storedTrains);
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serial->write_p(PSTR(" deleted\n"));
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storedTrains--;
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}
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else if( strcmp(inBuffer, "list") == 0 )
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{
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serial->write_p(PSTR("Trains:\n"));
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for(uint8_t i = 0; i < storedTrains; i++)
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{
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snprintf(buffer, SNPRINTF_BUFFER_SIZE, "NUMBER: %u ID: %s%s CURRENT PACKET: %x", i, bit_rep[trains[i].getAddress() >> 4], bit_rep[trains[i].getAddress() & 0x0F], trains[i].getLastPacket());
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serial->write(buffer, SNPRINTF_BUFFER_SIZE);
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serial->write_p(PSTR(" PROTOCOL: "));
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if(trains[i].getProtocol() == Train::M_DELTA)serial->write_p(PSTR("delta\n"));
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else serial->write_p(PSTR("digital\n"));
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}
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serial->putChar('\n');
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}
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else
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{
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uint8_t id = strtol(inBuffer, nullptr, 10);
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if(id < storedTrains )
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{
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if(powerIsOn == false)
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{
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powerIsOn = true;
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Train::setOutput(Train::LOW);
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_delay_ms(100);
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timer0InterruptEnable(true);
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}
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char* token = strtok(NULL, " ");
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if( token != NULL && strcmp(token, "speed") == 0 )
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{
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token = strtok(NULL, " ");
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trains[id].setSpeed(atoi(token));
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serial->write_p(PSTR("Set Train speed\n"));
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}
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else if(token != NULL && strcmp(token, "function") == 0 )
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{
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token = strtok(NULL, " ");
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char* boolToken = strtok(NULL, " ");
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if(token != NULL && boolToken != NULL)
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{
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uint8_t functionId = atoi(token);
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bool on = (strcmp(boolToken, "on") == 0);
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trains[id].sendFunction(functionId, on );
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serial->write_p(PSTR("Set Train function "));
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serial->write(functionId);
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serial->write(on ? " on\n" : " off\n");
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}
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}
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else if(token != NULL && strcmp(token, "probe") == 0 )
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{
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for(uint16_t j = 0; j < 1024; j++)
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{
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trains[id].sendRaw(j);
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snprintf(buffer, SNPRINTF_BUFFER_SIZE, "TRYING: %x\n", j);
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serial->write(buffer, strlen(buffer));
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sei();
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_delay_ms(250);
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cli();
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}
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}
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else if(token != NULL && strcmp(token, "raw") == 0 )
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{
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token = strtok(NULL, " ");
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if(token != NULL)
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{
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cli();
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uint16_t i = strtol(token, nullptr, 16 );
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snprintf(buffer, SNPRINTF_BUFFER_SIZE, "SENDING: %x\n", i);
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serial->write(buffer, strlen(buffer));
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for(uint8_t j = 0; j < 100; j++)
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{
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trains[id].sendRaw(i);
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_delay_ms(20);
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}
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serial->write_p(PSTR("Finished\n"));
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sei();
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}
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}
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else if( token != NULL && strcmp(token, "reverse") == 0 )
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{
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trains[id].reverse();
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serial->write_p(PSTR("Reversed Train\n"));
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}
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else if( token != NULL && strcmp(token, "stop") == 0 )trains[id].stop();
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else serial->write_p(PSTR("Not a valid command\n"));
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}
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else serial->write_p(PSTR("Id out of range.\n"));
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}
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sei();
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}
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void powerDispatch(char* token, Serial* serial)
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{
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if(strcmp(token, "off") == 0)
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{
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timer0InterruptEnable(false);
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Train::setOutput(Train::OFF);
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powerIsOn = false;
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}
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else if( strcmp(token, "on") == 0)
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{
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for(uint16_t i = 0; i < storedTrains; i++)
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{
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trains[i].setSpeed(0);
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}
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Train::setOutput(Train::LOW);
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timer0InterruptEnable(true);
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}
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else if(strcmp(token, "auto") == 0)
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{
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token = strtok(NULL, " ");
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if(token != NULL && strcmp(token, "on") == 0)
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{
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autoff = true;
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serial->write_p(PSTR("auto power off turned on.\n"));
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save_state();
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}
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else if(token != NULL && strcmp(token, "off") == 0)
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{
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autoff = false;
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serial->write_p(PSTR("auto power off turned off.\n"));
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save_state();
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}
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else
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{
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serial->write_p(PSTR("argument must be \"on\" or \"off\". This feature is currently "));
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autoff ? serial->write_p(PSTR("on.\n")) : serial->write_p(PSTR("off.\n"));
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}
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}
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}
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void serialDispatch(Serial* serial)
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{
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if(serial->dataIsWaiting())
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{
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char buffer[COMMAND_BUFFER_SIZE];
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unsigned int length = serial->getString(buffer, COMMAND_BUFFER_SIZE);
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if(length > 2)
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{
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serial->write_p(PSTR("Got: "));
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serial->putChar('\"');
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serial->write(buffer, length);
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serial->write("\"\n");
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char* token = strtok(buffer, " ");
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if(length > 4 && strcmp(token, "train") == 0)
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{
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token = strtok(NULL, " ");
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if(token != NULL)trainDispatch(token, serial);
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}
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else if(length > 4 && strncmp(token, "erase", 4) == 0)
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{
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for(uint16_t i = 0; i < EPPROM_SIZE; i++) EEPROM_write_char(i, 0);
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serial->write_p(PSTR("EEPROM erased\n"));
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storedTrains = 0;
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}
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else if(length > 3 && strcmp(token, "dump") == 0)
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{
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for(uint16_t i = 0; i < EPPROM_SIZE; i++)
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{
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if(i != 0) serial->putChar(',');
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serial->write((uint16_t)EEPROM_read_char(i));
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}
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serial->putChar('\n');
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}
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else if(length > 3 && strcmp(token, "stop") == 0)
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{
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for(uint16_t i = 0; i < storedTrains; i++)
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{
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cli();
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trains[i].stop();
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sei();
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}
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}
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else if(length > 3 && strcmp(token, "power") == 0)
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{
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token = strtok(NULL, " ");
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if(token != NULL)powerDispatch(token, serial);
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}
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else if(length > 3 && strcmp(token, "help") == 0)
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{
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printHelp(serial);
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}
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else
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{
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serial->putChar('\"');
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serial->write(buffer, length);
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serial->putChar('\"');
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serial->write_p(PSTR(" is not a valid command\n"));
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}
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}
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}
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}
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int main()
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{
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TCNT0 = 0;
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TCCR0B = (1<<CS01) /*| (1<<CS00)*/; // run timer0 with /64 scaler
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DDRD = (1 << PD2) | (1 << PD3) | (1 << PD4) | (1 << PD5);
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restore_state();
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if(autoff)
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{
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timer0InterruptEnable(false);
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Train::setOutput(Train::OFF);
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}
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else
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{
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timer0InterruptEnable(true);
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Train::setOutput(Train::LOW);
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}
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sei();
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Serial serial;
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serial.write_p(PSTR("TrainController v0.1 starting\n"));
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uint8_t trainToResend = 0;
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while(true)
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{
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if(resendEvent && storedTrains > 0)
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{
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timer0InterruptEnable(false);
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trains[trainToResend].resendData();
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trainToResend++;
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if(storedTrains <= trainToResend) trainToResend = 0;
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resendEvent = false;
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timer0InterruptEnable(true);
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}
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if(autoff)
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{
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bool trainsRunning = false;
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for(uint16_t i = 0; i < storedTrains; i++) trainsRunning = trainsRunning || trains[i].isActive();
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if(!trainsRunning)
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{
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powerIsOn = false;
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timer0InterruptEnable(false);
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Train::setOutput(Train::OFF);
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}
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}
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serialDispatch(&serial);
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}
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return 0;
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}
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