2014-09-26 06:02:50 -07:00
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/**
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* @file efiGpio.cpp
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*
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* @date Sep 26, 2014
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* @author Andrey Belomutskiy, (c) 2012-2014
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*/
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#include "main.h"
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#include "efiGpio.h"
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#include "io_pins.h"
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// todo: clean this mess, this should become 'static'/private
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OutputPin outputs[IO_PIN_COUNT];
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2014-09-27 12:03:45 -07:00
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int getOutputPinValue(io_pin_e pin) {
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return getLogicPinValue(&outputs[pin]);
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}
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2014-09-26 06:02:50 -07:00
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int getLogicPinValue(OutputPin * outputPin) {
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return outputPin->currentLogicValue;
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}
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2014-09-27 12:03:45 -07:00
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/**
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* @return 0 for OM_DEFAULT and OM_OPENDRAIN
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*/
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inline static int getElectricalValue0(pin_output_mode_e mode) {
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return mode == OM_INVERTED || mode == OM_OPENDRAIN_INVERTED;
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}
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/**
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* @return 1 for OM_DEFAULT and OM_OPENDRAIN
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*/
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inline static int getElectricalValue1(pin_output_mode_e mode) {
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return mode == OM_DEFAULT || mode == OM_OPENDRAIN;
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}
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// todo: this method is here for unit test visibility. todo: move to a bette place!
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int getElectricalValue(int logicalValue, pin_output_mode_e mode) {
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efiAssert(mode <= OM_OPENDRAIN_INVERTED, "invalid pin_output_mode_e", -1);
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return logicalValue ? getElectricalValue1(mode) : getElectricalValue0(mode);
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}
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