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/*****************************************************************************
* gpio.h: Header file for NXP LPC13xx Family Microprocessors
*
* Copyright(C) 2008, NXP Semiconductor
* All rights reserved.
*
* History
* 2008.09.01 ver 1.00 Preliminary version, first Release
* 2009.12.09 ver 1.05 Mod to use mask registers for GPIO writes + inlining (.h)
*
******************************************************************************/
#ifndef __GPIO_H
#define __GPIO_H
#define PORT0 0
#define PORT1 1
#define PORT2 2
#define PORT3 3
void GPIO_IRQHandler(void);
void GPIOInit( void );
void GPIOSetInterrupt( uint32_t portNum, uint32_t bitPosi, uint32_t sense,
uint32_t single, uint32_t event );
void GPIOIntEnable( uint32_t portNum, uint32_t bitPosi );
void GPIOIntDisable( uint32_t portNum, uint32_t bitPosi );
uint32_t GPIOIntStatus( uint32_t portNum, uint32_t bitPosi );
void GPIOIntClear( uint32_t portNum, uint32_t bitPosi );
static LPC_GPIO_TypeDef (* const LPC_GPIO[4]) = { LPC_GPIO0, LPC_GPIO1, LPC_GPIO2, LPC_GPIO3 };
/*****************************************************************************
** Function name: GPIOSetValue
**
** Descriptions: Set/clear a bitvalue in a specific bit position
** in GPIO portX(X is the port number.)
**
** parameters: port num, bit position, bit value
** Returned value: None
**
*****************************************************************************/
static __INLINE void GPIOSetValue( uint32_t portNum, uint32_t bitPosi, uint32_t bitVal )
{
LPC_GPIO[portNum]->MASKED_ACCESS[(1<<bitPosi)] = (bitVal<<bitPosi);
}
/*****************************************************************************
** Function name: GPIOSetDir
**
** Descriptions: Set the direction in GPIO port
**
** parameters: port num, bit position, direction (1 out, 0 input)
** Returned value: None
**
*****************************************************************************/
static __INLINE void GPIOSetDir( uint32_t portNum, uint32_t bitPosi, uint32_t dir )
{
if(dir)
LPC_GPIO[portNum]->DIR |= 1<<bitPosi;
else
LPC_GPIO[portNum]->DIR &= ~(1<<bitPosi);
}
#endif /* end __GPIO_H */
/*****************************************************************************
** End Of File
******************************************************************************/
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