Pintest.h

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#include <FastLED.h>
 
char fullstrBuffer[64];
 
const char *getPort(void *portRef) {
// AVR port checks
#ifdef PORTA
    if(portRef == (void*)&PORTA) { return "PORTA"; }
#endif
#ifdef PORTB
    if(portRef == (void*)&PORTB) { return "PORTB"; }
#endif
#ifdef PORTC
    if(portRef == (void*)&PORTC) { return "PORTC"; }
#endif
#ifdef PORTD
    if(portRef == (void*)&PORTD) { return "PORTD"; }
#endif
#ifdef PORTE
    if(portRef == (void*)&PORTE) { return "PORTE"; }
#endif
#ifdef PORTF
    if(portRef == (void*)&PORTF) { return "PORTF"; }
#endif
#ifdef PORTG
    if(portRef == (void*)&PORTG) { return "PORTG"; }
#endif
#ifdef PORTH
    if(portRef == (void*)&PORTH) { return "PORTH"; }
#endif
#ifdef PORTI
    if(portRef == (void*)&PORTI) { return "PORTI"; }
#endif
#ifdef PORTJ
    if(portRef == (void*)&PORTJ) { return "PORTJ"; }
#endif
#ifdef PORTK
    if(portRef == (void*)&PORTK) { return "PORTK"; }
#endif
#ifdef PORTL
    if(portRef == (void*)&PORTL) { return "PORTL"; }
#endif
 
// Teensy 3.x port checks
#ifdef GPIO_A_PDOR
    if(portRef == (void*)&GPIO_A_PDOR) { return "GPIO_A_PDOR"; }
#endif
#ifdef GPIO_B_PDOR
    if(portRef == (void*)&GPIO_B_PDOR) { return "GPIO_B_PDOR"; }
#endif
#ifdef GPIO_C_PDOR
    if(portRef == (void*)&GPIO_C_PDOR) { return "GPIO_C_PDOR"; }
#endif
#ifdef GPIO_D_PDOR
    if(portRef == (void*)&GPIO_D_PDOR) { return "GPIO_D_PDOR"; }
#endif
#ifdef GPIO_E_PDOR
    if(portRef == (void*)&GPIO_E_PDOR) { return "GPIO_E_PDOR"; }
#endif
#ifdef REG_PIO_A_ODSR
    if(portRef == (void*)&REG_PIO_A_ODSR) { return "REG_PIO_A_ODSR"; }
#endif
#ifdef REG_PIO_B_ODSR
    if(portRef == (void*)&REG_PIO_B_ODSR) { return "REG_PIO_B_ODSR"; }
#endif
#ifdef REG_PIO_C_ODSR
    if(portRef == (void*)&REG_PIO_C_ODSR) { return "REG_PIO_C_ODSR"; }
#endif
#ifdef REG_PIO_D_ODSR
    if(portRef == (void*)&REG_PIO_D_ODSR) { return "REG_PIO_D_ODSR"; }
#endif
 
// Teensy 4 port checks
#ifdef GPIO1_DR
    if(portRef == (void*)&GPIO1_DR) { return "GPIO1_DR"; }
#endif
#ifdef GPIO2_DR
if(portRef == (void*)&GPIO2_DR) { return "GPIO21_DR"; }
#endif
#ifdef GPIO3_DR
if(portRef == (void*)&GPIO3_DR) { return "GPIO3_DR"; }
#endif
#ifdef GPIO4_DR
if(portRef == (void*)&GPIO4_DR) { return "GPIO4_DR"; }
#endif
  String unknown_str = "Unknown: " + String((size_t)portRef, HEX);
    strncpy(fullstrBuffer, unknown_str.c_str(), unknown_str.length());
    fullstrBuffer[sizeof(fullstrBuffer)-1] = '\0';
    return fullstrBuffer;
}
 
template<uint8_t PIN> void CheckPin()
{
    CheckPin<PIN - 1>();
 
    void *systemThinksPortIs = (void*)portOutputRegister(digitalPinToPort(PIN));
    RwReg systemThinksMaskIs = digitalPinToBitMask(PIN);
 
    Serial.print("Pin "); Serial.print(PIN); Serial.print(": Port ");
 
    if(systemThinksPortIs == (void*)FastPin<PIN>::port()) {
        Serial.print("valid & mask ");
    } else {
        Serial.print("invalid, is "); Serial.print(getPort((void*)FastPin<PIN>::port())); Serial.print(" should be ");
        Serial.print(getPort((void*)systemThinksPortIs));
        Serial.print(" & mask ");
    }
 
    if(systemThinksMaskIs == FastPin<PIN>::mask()) {
        Serial.println("valid.");
    } else {
        Serial.print("invalid, is "); Serial.print(FastPin<PIN>::mask()); Serial.print(" should be "); Serial.println(systemThinksMaskIs);
    }
}
 
template<> void CheckPin<255> () {}
template<> void CheckPin<0> () {}  // Base case to prevent recursion to -1
 
 
template<uint8_t _PORT> const char *_GetPinPort(void *ptr) {
    if (__FL_PORT_INFO<_PORT>::hasPort() && (ptr == (void*)__FL_PORT_INFO<_PORT>::portAddr())) {
        return __FL_PORT_INFO<_PORT>::portName();
    } else {
        return _GetPinPort<_PORT - 1>(ptr);
    }
}
 
template<> const char *_GetPinPort<0>(void *ptr) {
    if (__FL_PORT_INFO<0>::hasPort() && (ptr == (void*)__FL_PORT_INFO<0>::portAddr())) {
        return __FL_PORT_INFO<0>::portName();
    } else {
        return NULL;  // Base case - no more ports to check
    }
}
 
const char *GetPinPort(void *ptr) {
    return _GetPinPort<'Z'>(ptr);
}
 
static uint8_t pcount = 0;
 
 
template<uint8_t PIN> void PrintPins() {
    PrintPins<PIN - 1>();
 
    RwReg *systemThinksPortIs = portOutputRegister(digitalPinToPort(PIN));
    RwReg systemThinksMaskIs = digitalPinToBitMask(PIN);
 
    int maskBit = 0;
    while(systemThinksMaskIs > 1) { systemThinksMaskIs >>= 1; maskBit++; }
 
    const char *pinport = GetPinPort((void*)systemThinksPortIs);
    if (pinport) {
        Serial.print("__FL_DEFPIN("); Serial.print(PIN);
        Serial.print(","); Serial.print(maskBit);
        Serial.print(","); Serial.print(pinport);
        Serial.print("); ");
        pcount++;
        if(pcount == 4) { pcount = 0; Serial.println(""); }
    } else {
        // Serial.print("Not found for pin "); Serial.println(PIN);
    }
}
 
template<> void PrintPins<0>() {
    RwReg *systemThinksPortIs = portOutputRegister(digitalPinToPort(0));
    RwReg systemThinksMaskIs = digitalPinToBitMask(0);
 
    int maskBit = 0;
    while(systemThinksMaskIs > 1) { systemThinksMaskIs >>= 1; maskBit++; }
 
    const char *pinport = GetPinPort((void*)systemThinksPortIs);
    if (pinport) {
        Serial.print("__FL_DEFPIN("); Serial.print(0);
        Serial.print(","); Serial.print(maskBit);
        Serial.print(","); Serial.print(pinport);
        Serial.print("); ");
        pcount++;
        if(pcount == 4) { pcount = 0; Serial.println(""); }
    }
}
 
int counter = 0;
void setup() {
    delay(5000);
    Serial.begin(38400);
    Serial.println("resetting!");
}
 
void loop() {
    Serial.println(counter);
 
#ifdef MAX_PIN
    CheckPin<MAX_PIN>();
#endif
 
    Serial.println("-----");
#ifdef NUM_DIGITAL_PINS
    PrintPins<NUM_DIGITAL_PINS>();
#endif
    Serial.println("------");
 
    delay(100000);
}