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/*
* @brief LPC8xx IOCON driver
*
* @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 licenser 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.
*/
#define _CHIP_COMMON_
#include "chip.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
#define PINASSIGN_IDX(movable) (((movable) >> 4))
#define PINSHIFT(movable) (((movable) & 0xF) << 3)
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Set the pin mode (pull-up/pull-down). */
void Chip_IOCON_PinSetMode(LPC_IOCON_T *pIOCON, CHIP_PINx_T pin, CHIP_PIN_MODE_T mode)
{
uint32_t reg;
reg = pIOCON->PIO0[pin] & ~(PIN_MODE_MASK);
pIOCON->PIO0[pin] = reg | (mode << PIN_MODE_BITNUM);
}
/* Enables/disables the pin hysteresis. */
void Chip_IOCON_PinSetHysteresis(LPC_IOCON_T *pIOCON, CHIP_PINx_T pin, bool enable)
{
if (enable == true) {
Chip_IOCON_PinEnableHysteresis(pIOCON, pin);
}
else {
Chip_IOCON_PinDisableHysteresis(pIOCON, pin);
}
}
/*Inverts (or not) the input seen by a pin. */
void Chip_IOCON_PinSetInputInverted(LPC_IOCON_T *pIOCON, CHIP_PINx_T pin, bool invert)
{
if (invert == true) {
Chip_IOCON_PinEnableInputInverted(pIOCON, pin);
}
else {
Chip_IOCON_PinDisableInputInverted(pIOCON, pin);
}
}
/* Enables/disables Open-Drain mode for a pin. */
void Chip_IOCON_PinSetOpenDrainMode(LPC_IOCON_T *pIOCON, CHIP_PINx_T pin, bool open_drain)
{
if (open_drain == true) {
Chip_IOCON_PinEnableOpenDrainMode(pIOCON, pin);
}
else {
Chip_IOCON_PinDisableOpenDrainMode(pIOCON, pin);
}
}
/* Enable/configure digital filter sample mode for a pin. */
void Chip_IOCON_PinSetSampleMode(LPC_IOCON_T *pIOCON, CHIP_PINx_T pin, CHIP_PIN_SMODE_T smode)
{
uint32_t reg;
reg = pIOCON->PIO0[pin] & ~(PIN_SMODE_MASK);
pIOCON->PIO0[pin] = reg | (smode << PIN_SMODE_BITNUM);
}
/* Set the peripheral clock divisor for a pin. */
void Chip_IOCON_PinSetClockDivisor(LPC_IOCON_T *pIOCON, CHIP_PINx_T pin, CHIP_PIN_CLKDIV_T clkdiv)
{
uint32_t reg;
reg = pIOCON->PIO0[pin] & ~(PIN_CLKDIV_MASK);
pIOCON->PIO0[pin] = reg | (clkdiv << PIN_CLKDIV_BITNUM);
}
/* Set the I2C mode for a pin. */
void Chip_IOCON_PinSetI2CMode(LPC_IOCON_T *pIOCON, CHIP_PINx_T pin, CHIP_PIN_I2CMODE_T mode)
{
uint32_t reg;
/* I2C mode bits only for I2C pins */
reg = pIOCON->PIO0[pin] & ~(PIN_I2CMODE_MASK);
pIOCON->PIO0[pin] = reg | (mode << PIN_I2CMODE_BITNUM);
}
/* Set all I/O Control pin muxing */
void Chip_IOCON_SetPinMuxing(LPC_IOCON_T *pIOCON, const PINMUX_GRP_T* pinArray, uint32_t arrayLength)
{
uint32_t ix;
for (ix = 0; ix < arrayLength; ix++ ) {
Chip_IOCON_PinMuxSet(pIOCON, pinArray[ix].pin, pinArray[ix].modefunc);
}
}
/* assign a movable pin function to a physical pin */
void Chip_SWM_MovablePinAssign(CHIP_SWM_PIN_MOVABLE_T movable, uint8_t pin)
{
uint32_t temp;
int pinshift = PINSHIFT(movable), regIndex = PINASSIGN_IDX(movable);
temp = LPC_SWM->PINASSIGN[regIndex] & (~(0xFF << pinshift));
LPC_SWM->PINASSIGN[regIndex] = temp | (pin << pinshift);
}
/* true enables, false disables a Switch Matrix fixed-pin Function */
void Chip_SWM_FixedPinEnable(CHIP_SWM_PIN_FIXED_T pin, bool enable)
{
if (enable) {
Chip_SWM_EnableFixedPin(pin);
}
else {
Chip_SWM_DisableFixedPin(pin);
}
}
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