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https://github.com/DCC-EX/CommandStation-EX.git
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55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
#include "SensorGroup.h"
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// called in loop to check sensors
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void SensorGroup::checkAll() {
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#ifdef EXRAIL_ACTIVE
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doExrailSensorGroup(GroupProcess::CHECK, & USB_SERIAL);
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#endif
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}
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// called by command to get sensor list
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void SensorGroup::printAll(Print * serial) {
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(void)serial; // suppress unused warning
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#ifdef EXRAIL_ACTIVE
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doExrailSensorGroup(GroupProcess::PRINT,serial);
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#endif
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}
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void SensorGroup::pullupAll() {
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#ifdef EXRAIL_ACTIVE
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doExrailSensorGroup(GroupProcess::PULLUP, & USB_SERIAL);
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#endif
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}
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// called by EXRAIL constructed doExrailSensorGroup for each group
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void SensorGroup::doSensorGroup(VPIN firstVpin, int nPins, byte* statebits,
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GroupProcess action, Print * serial) {
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// Loop through the pins in the group
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for (auto i=0;i<nPins;i++) {
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// locate position of state bit
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byte stateByte=i/8;
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byte stateMask=1<<(i%8);
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VPIN vpin= firstVpin+i;
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switch(action) {
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case GroupProcess::PULLUP:
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IODevice::configureInput(vpin, true);
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__attribute__ ((fallthrough)); // to check the current state
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case GroupProcess::CHECK:
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// check for state change
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if ((bool)(statebits[stateByte]&stateMask) ==IODevice::read(vpin)) break; // no change
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// flip state bit
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statebits[stateByte]^=stateMask;
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if (action==GroupProcess::PULLUP) break;
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// fall through to print the changed value
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__attribute__ ((fallthrough));
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case GroupProcess::PRINT:
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StringFormatter::send(serial, F("<%c %d>\n"),
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(statebits[stateByte]&stateMask)?'Q':'q', firstVpin+i);
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break;
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}
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}
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}
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