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// Function to read the state of the gpio pin
//
// Calling Sequence
// u8RPI_DigitalIn(pin)
//
// Parameters
// pin : pin of RPi to be read
//
// Returns
// state: Current state of the specified gpio pin
//
// Description
// There are few pins available on RPi as Gpio or digital i/o. These pins can be used as digital output or input. Using this function, current state (low/high) of any gpio pin can be read. 'pin' name must be provided from list provided. Please refer '' for complete list of pins. 'state' can be 0 or 1 depending upon state of the pin (Low/High). RPI_DigitalSetup with appropriate arguments must be called before using this function.
// Examples
// u8RPI_DigitalIn(RPI_GPIO_P1_03,1) //Returns the state of pin 3 of header P1
//
//
// Authors
// Siddhesh Wani
//
#include "types.h"
#include "RPIPeripheralDigital.h"
uint8 u8RPIDigitalIns(uint8 pin)
{
uint8 state = 0;
state = bcm2835_gpio_lev(pin);
return (state);
}
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