Files
allwpilib/wpilibc/athena/include/InterruptableSensorBase.h
2016-07-09 00:24:26 -07:00

51 lines
2.0 KiB
C++

/*----------------------------------------------------------------------------*/
/* Copyright (c) FIRST 2008-2016. All Rights Reserved. */
/* Open Source Software - may be modified and shared by FRC teams. The code */
/* must be accompanied by the FIRST BSD license file in the root directory of */
/* the project. */
/*----------------------------------------------------------------------------*/
#pragma once
#include <memory>
#include "AnalogTriggerType.h"
#include "HAL/Interrupts.h"
#include "SensorBase.h"
class InterruptableSensorBase : public SensorBase {
public:
enum WaitResult {
kTimeout = 0x0,
kRisingEdge = 0x1,
kFallingEdge = 0x100,
kBoth = 0x101,
};
InterruptableSensorBase();
virtual ~InterruptableSensorBase() = default;
virtual HAL_Handle GetPortHandleForRouting() const = 0;
virtual AnalogTriggerType GetAnalogTriggerTypeForRouting() const = 0;
virtual void RequestInterrupts(
InterruptHandlerFunction handler,
void* param); ///< Asynchronus handler version.
virtual void RequestInterrupts(); ///< Synchronus Wait version.
virtual void
CancelInterrupts(); ///< Free up the underlying chipobject functions.
virtual WaitResult WaitForInterrupt(
float timeout,
bool ignorePrevious = true); ///< Synchronus version.
virtual void
EnableInterrupts(); ///< Enable interrupts - after finishing setup.
virtual void DisableInterrupts(); ///< Disable, but don't deallocate.
virtual double ReadRisingTimestamp(); ///< Return the timestamp for the
/// rising interrupt that occurred.
virtual double ReadFallingTimestamp(); ///< Return the timestamp for the
/// falling interrupt that occurred.
virtual void SetUpSourceEdge(bool risingEdge, bool fallingEdge);
protected:
HAL_InterruptHandle m_interrupt = HAL_kInvalidHandle;
void AllocateInterrupts(bool watcher);
};