103 lines
2.1 KiB
C++
103 lines
2.1 KiB
C++
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/*
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* PinIOOverride.h
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*
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* Created on: 18 <EFBFBD><EFBFBD><EFBFBD>. 2019 <EFBFBD>.
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* Author: titov
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*/
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#ifndef SOURCE_DRIVER_PINIOOVERRIDE_H_
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#define SOURCE_DRIVER_PINIOOVERRIDE_H_
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#include "../peripheral/IGpioOverride.hh"
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namespace driver {
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template<typename PortType>
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class PinIOOverride : public peripheral::IGpioOverride {
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public:
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typedef unsigned short Id;
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struct Input {
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PortType data;
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};
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struct Output {
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PortType priority;
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PortType overriding;
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PortType data;
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};
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PinIOOverride( Id id, bool priority, const volatile Input & input, volatile Output & output );
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bool getOverrideStatus() const override;
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void setupOverride() override;
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void setOverrideValue(TOutValue value) override;
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bool getHidenValue() const override;
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void resetOverride() override;
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private:
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const volatile Input & input;
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volatile Output & output;
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const PortType mask;
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};
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}
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template<typename PortType>
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inline driver::PinIOOverride<PortType>::PinIOOverride(
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Id id, bool priority, const volatile Input & input, volatile Output & output ) :
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input(input), output(output), mask( static_cast<PortType>(1) << id ) {
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if( priority )
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output.priority |= mask;
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}
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template<typename PortType>
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inline bool driver::PinIOOverride<PortType>::getOverrideStatus() const {
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return output.overriding & mask;
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}
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template<typename PortType>
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inline void driver::PinIOOverride<PortType>::setupOverride() {
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output.data = input.data;
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output.overriding |= mask;
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}
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template<typename PortType>
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inline void driver::PinIOOverride<PortType>::setOverrideValue(TOutValue value) {
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switch(value) {
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case hi_z: {
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output.data = input.data;
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} break;
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case high: {
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output.data |= mask;
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} break;
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case low: {
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output.data &= ~mask;
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} break;
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}
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}
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template<typename PortType>
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inline bool driver::PinIOOverride<PortType>::getHidenValue() const {
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return input.data & mask;
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}
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template<typename PortType>
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inline void driver::PinIOOverride<PortType>::resetOverride() {
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output.overriding &= ~mask;
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}
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#endif /* SOURCE_DRIVER_PINIOOVERRIDE_H_ */
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