rt-thread/bsp/xplorer4330/libraries/lpc_ip/gpiopinint_001.c

/*
 * @brief GPIO Pin Interrupt Registers and control functions
 *
 * @note
 * Copyright(C) NXP Semiconductors, 2012
 * All rights reserved.
 *
 * @par
 * Software that is described herein is for illustrative purposes only
 * which provides customers with programming information regarding the
 * LPC products.  This software is supplied "AS IS" without any warranties of
 * any kind, and NXP Semiconductors and its licensor disclaim any and
 * all warranties, express or implied, including all implied warranties of
 * merchantability, fitness for a particular purpose and non-infringement of
 * intellectual property rights.  NXP Semiconductors assumes no responsibility
 * or liability for the use of the software, conveys no license or rights under any
 * patent, copyright, mask work right, or any other intellectual property rights in
 * or to any products. NXP Semiconductors reserves the right to make changes
 * in the software without notification. NXP Semiconductors also makes no
 * representation or warranty that such application will be suitable for the
 * specified use without further testing or modification.
 *
 * @par
 * Permission to use, copy, modify, and distribute this software and its
 * documentation is hereby granted, under NXP Semiconductors' and its
 * licensor's relevant copyrights in the software, without fee, provided that it
 * is used in conjunction with NXP Semiconductors microcontrollers.  This
 * copyright, permission, and disclaimer notice must appear in all copies of
 * this code.
 */

#include "gpiopinint_001.h"

/*****************************************************************************
 * Private types/enumerations/variables
 ****************************************************************************/

/*****************************************************************************
 * Public types/enumerations/variables
 ****************************************************************************/

/*****************************************************************************
 * Private functions
 ****************************************************************************/

/*****************************************************************************
 * Public functions
 ****************************************************************************/

/* Enable GPIO Interrupt */
void IP_GPIOPININT_IntCmd(IP_GPIOPININT_001_Type *pGPIOPININT, uint8_t PortNum, Gpio_PinInt_Mode_Enum IntMode)
{
	if (IntMode == IP_GPIOPININT_RISING_EDGE) {
		pGPIOPININT->ISEL &= ~(1 << PortNum);
		pGPIOPININT->IENR |= (1 << PortNum);
	}
	else if (IntMode == IP_GPIOPININT_FALLING_EDGE) {
		pGPIOPININT->ISEL &= ~(1 << PortNum);
		pGPIOPININT->IENF |= (1 << PortNum);
	}
	else if (IntMode == IP_GPIOPININT_ACTIVE_HIGH_LEVEL) {
		pGPIOPININT->ISEL |= (1 << PortNum);
		pGPIOPININT->IENR |= (1 << PortNum);
		pGPIOPININT->SIENF |= (1 << PortNum);
	}
	else {
		pGPIOPININT->ISEL |= (1 << PortNum);
		pGPIOPININT->IENR |= (1 << PortNum);
		pGPIOPININT->CIENF |= (1 << PortNum);
	}
}