Utilities.c

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/****************************************************************************
 * Copyright (C) 2015 Sensorian
 *                                                                          *
 * This file is part of Sensorian.                                          *
 *                                                                          *
 *   Sensorian is free software: you can redistribute it and/or modify it   *
 *   under the terms of the GNU Lesser General Public License as published  *
 *   by the Free Software Foundation, either version 3 of the License, or   *
 *   (at your option) any later version.                                    *
 *                                                                          *
 *   Sensorian is distributed in the hope that it will be useful,           *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of         *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
 *   GNU Lesser General Public License for more details.                    *
 *                                                                          *
 *   You should have received a copy of the GNU Lesser General Public       *
 *   License along with Sensorian.                                          *
 *   If not, see <http://www.gnu.org/licenses/>.                            *
 ****************************************************************************/
 
#include "Utilities.h"


void delay_ms(unsigned int ms)
{
    bcm2835_delay(ms);
}

void pinModeOutput(PIN_t pin)
{
    bcm2835_gpio_fsel(pin, BCM2835_GPIO_FSEL_OUTP);
}

void digitalWrite(PIN_t pin, unsigned char level)
{
    bcm2835_gpio_write(pin, level);         // set to level 
}

PinLevel_t ReadPinStatus(PIN_t pin)
{
    bcm2835_gpio_fsel(pin,BCM2835_GPIO_FSEL_INPT);      // Set the pin to be an input
    bcm2835_gpio_set_pud(pin, BCM2835_GPIO_PUD_DOWN);       // Enable pull up.
    PinLevel_t pinLevel = (PinLevel_t)bcm2835_gpio_lev(pin);        //read voltage level on MFP pin 
    return pinLevel;
}

void EnableDetectRisingEdge(PIN_t pin)
{
    bcm2835_gpio_ren(pin);      //enable rising edge detect on pin
}

void DisableDetectRisingEdge(PIN_t pin)
{
    bcm2835_gpio_clr_ren(pin);      //Disable rising edge detect on pin
}

void EnableDetectFallingEdge(PIN_t pin)
{
    bcm2835_gpio_ren(pin);      //enable rising edge detect on pin
}

void DisableDetectFallinggEdge(PIN_t pin)
{
    bcm2835_gpio_clr_ren(pin);      //Disable rising edge detect on pin
}

void EnableDetectHighLevel(PIN_t pin)
{
    bcm2835_gpio_ren(pin);      //enable rising edge detect on pin
}

void DisableDetectHighLevel(PIN_t pin)
{
    bcm2835_gpio_clr_ren(pin);      //Disable rising edge detect on pin
}

void EnableDetectLowLevel(PIN_t pin)
{
    bcm2835_gpio_ren(pin);      //enable rising edge detect on pin
}

void DisableDetectLowLevel(PIN_t pin)
{
    bcm2835_gpio_clr_ren(pin);      //Disable rising edge detect on pin
}

void EnableDetectRisingInterrupt(PIN_t pin)
{
    bcm2835_gpio_aren(pin);     //enable rising edge detect on pin
}

void DisableDetectRisingInterrupt(PIN_t pin)
{
    bcm2835_gpio_clr_aren(pin);     //Disable rising edge detect on pin
}

unsigned char CheckPinforEvent(PIN_t pin)
{
    unsigned char event = bcm2835_gpio_eds(pin);        //Check for event detection
    bcm2835_gpio_set_eds(pin);      //Clear even detection interrupt flags
    return event;
}