153 lines
5.1 KiB
C
153 lines
5.1 KiB
C
/*
|
|
* @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);
|
|
}
|
|
}
|