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#include "awCard.h"
using std::cout;
awCard::awCard(bool debugmode, unsigned char *pinDirections, int mode):debug(debugmode), eventsmode(mode){
try{
if (aw_init()){
throw AWCException("Unable to initialize driver. Exiting.");
}
else if (debug){
cout << "Initialized driver." << endl;
}
number_of_boards = 0;
if (aw_numberOfConnectedBoards(&number_of_boards)){
throw AWCException("Unable to retrieve number of boards connected. Exiting.");
}
if (!number_of_boards){
throw AWCException("No ActiveWire boards connected. Exiting.");
}
cout << static_cast<int>(number_of_boards) << " ActiveWire USB board connected." << endl;
allOff_str = ALLOFF;
allOn_str = ALLON;
//set mode to output
aw_binaryToDecimal(pinDirections, 2, decimal_array);
if (aw_setDirectionsOfPinSets(0, decimal_array[0], decimal_array[1])){
throw AWCException("Unable to set the IO pins' directions. Exiting.");
}
else if (debug){
cout << "Set IO pins' directions." << endl;
}
if (aw_setEventDeliveryMethod(eventsmode, //defaults to AW_EVENT_DELIV_BUFFER
NULL, NULL, NULL, 0)){
throw AWCException("Unable to set event delivery method. Exiting.");
}
allOff();
if (eventsmode==AW_EVENT_DELIV_BUFFER){
clearEvents();
}
}
catch (AWCException &e){
e.debug_print();
throw;
}
}
awCard::~awCard(){
aw_close();
cout << "Closed ActiveWire board(s)." << endl;
}
void awCard::write(unsigned char *s){
try{
aw_binaryToDecimal(s, 2, decimal_array);
if (aw_writeData(0, decimal_array, 2)){
throw AWCException("Unable to write data. Exiting.");
}
}
catch (AWCException &e){
e.debug_print();
throw; //rethrow so the exception appears in python
}
}
void awCard::allOn(){
write(allOn_str);
}
void awCard::allOff(){
write(allOff_str);
}
bool awCard::anyEvents(){
if (eventsmode!=AW_EVENT_DELIV_BUFFER){
throw AWCException("Wrong event delivery mode for anyEvents().");
}
AW_EVENT_LIST eventList = aw_getEvents();
int numEvents = eventList->numberOfEvents;
if (debug) {
if (numEvents > 0){
cout << "numEvents: " << numEvents << endl;
for (int i=0; i<numEvents; i++){
aw_decimalToBinary(eventList->events[i]->boardData, 1, binary_read_buffer);
printf("Last event:\n Board: %d\n Type: %d\n Time: (s: %d, ns: %d)\n IO Pin 0: %d\n",
eventList->events[i]->boardNumber,
eventList->events[i]->eventType,
(int)eventList->events[i]->timestamp.tv_sec,
(int)eventList->events[i]->timestamp.tv_nsec,
binary_read_buffer[0]);
}
cout << endl << "*******" << endl;
}
}
aw_clearEvents();
return (numEvents > 0);
}
bool awCard::anyBitVal(int bit, int val){
if (eventsmode!=AW_EVENT_DELIV_BUFFER){
throw AWCException("Wrong event delivery mode for anyEvents().");
}
// get the events
AW_EVENT_LIST eventList = aw_getEvents();
int numEvents = eventList->numberOfEvents;
bool answer = false;
// traverse the event list and look for val on pin # bit
for (int i=0; i<numEvents; i++){
aw_decimalToBinary(eventList->events[i]->boardData, 1, binary_read_buffer);
if (static_cast<int>(binary_read_buffer[bit])==val){
answer = true;
break;
}
}
// clear the events
aw_clearEvents();
return answer;
}
bool awCard::anyLowEvents(){
return anyBitVal(0, 0);
}
bool awCard::anyHighEvents(){
return anyBitVal(0, 1);
}
void awCard::clearEvents(){
if (eventsmode!=AW_EVENT_DELIV_BUFFER){
throw AWCException("Wrong event delivery mode for anyEvents().");
}
aw_clearEvents();
}
int main(){
awCard a(true);
while (true){
if (a.anyLowEvents()){
cout << "got a low signal." << endl;
}
}
}
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