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[hal] Error if attempting to set DIO output on an input port (#3436)

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This commit is contained in:
Thad House
2021-06-13 15:00:43 -07:00
committed by GitHub
parent 04e64db945
commit 186dadf14d
3 changed files with 33 additions and 0 deletions
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23
hal/src/main/native/athena/DIO.cpp
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@@ -272,6 +272,29 @@ void HAL_SetDIO(HAL_DigitalHandle dioPortHandle, HAL_Bool value,
}
{
std::scoped_lock lock(digitalDIOMutex);
tDIO::tOutputEnable currentOutputEnable =
digitalSystem->readOutputEnable(status);
HAL_Bool isInput = false;
if (port->channel >= kNumDigitalHeaders + kNumDigitalMXPChannels) {
isInput =
((currentOutputEnable.SPIPort >> remapSPIChannel(port->channel)) &
1) != 0;
} else if (port->channel < kNumDigitalHeaders) {
isInput = ((currentOutputEnable.Headers >> port->channel) & 1) != 0;
} else {
isInput = ((currentOutputEnable.MXP >> remapMXPChannel(port->channel)) &
1) != 0;
}
if (isInput) {
*status = PARAMETER_OUT_OF_RANGE;
hal::SetLastError(status, "Cannot set output of an input channel");
return;
}
tDIO::tDO currentDIO = digitalSystem->readDO(status);
if (port->channel >= kNumDigitalHeaders + kNumDigitalMXPChannels) {