Kettenoeler/Software/ChainLube/src/lubeapp.cpp

#include "lubeapp.h"

uint32_t lubePulseTimestamp = 0;

void RunLubeApp(volatile uint32_t *wheelPulseCounter)
{
    // Calculate traveled Distance in mm
    TravelDistance_highRes += (*wheelPulseCounter * (LubeConfig.DistancePerRevolution_mm / LubeConfig.PulsePerRevolution));
    *wheelPulseCounter = 0;

    // check if we have to Lube!
    switch (globals.systemStatus)
    {
    case sysStat_Startup:
        if (millis() > STARTUP_DELAY)
        {
            globals.systemStatus = sysStat_Normal;
            globals.resumeStatus = sysStat_Normal;
        }
        break;

    case sysStat_Normal:
        if (TravelDistance_highRes / 1000 > LubeConfig.DistancePerLube_Default)
        {
            LubePulse();
            TravelDistance_highRes = 0;
        }
        break;

    case sysStat_Rain:
        if (TravelDistance_highRes / 1000 > LubeConfig.DistancePerLube_Rain)
        {
            LubePulse();
            TravelDistance_highRes = 0;
        }
        break;
    case sysStat_Purge:
        if (globals.purgePulses > 0)
        {
            if (lubePulseTimestamp + LUBE_PULSE_PAUSE_MS < millis())
            {
                LubePulse();
                globals.purgePulses--;
            }
        }
        else
        {
            globals.systemStatus = globals.resumeStatus;
        }
        break;
    case sysStat_Error:
    default:
        break;
    }

    switch (globals.systemStatus)
    {
    case sysStat_Normal:
        strcpy(globals.systemStatustxt, "Normal");
        break;
    case sysStat_Purge:
        strcpy(globals.systemStatustxt, "Purge");
        break;
    case sysStat_Rain:
        strcpy(globals.systemStatustxt, "Rain");
        break;
    case sysStat_Startup:
        strcpy(globals.systemStatustxt, "Startup");
        break;
    case sysStat_Error:
        strcpy(globals.systemStatustxt, "Error");
        break;
    case sysStat_Shutdown:
        strcpy(globals.systemStatustxt, "Shutdown");
        break;
    }

    // maintain Pin-State of Lube-Pump
    if (lubePulseTimestamp > millis())
        digitalWrite(GPIO_PUMP, HIGH);
    else
        digitalWrite(GPIO_PUMP, LOW);
}

void LubePulse()
{
    lubePulseTimestamp = millis() + LUBE_PULSE_LENGHT_MS;
    if (PersistenceData.tankRemain_µl < LubeConfig.amountPerDose_µl)
        PersistenceData.tankRemain_µl = 0;
    else
        PersistenceData.tankRemain_µl = PersistenceData.tankRemain_µl - LubeConfig.amountPerDose_µl;
}