FreeRTOS/Demo/CORTEX_M4F_MSP432_LaunchPad_IAR_CCS_Keil/driverlib/pmap.c

/*
 * -------------------------------------------
 *    MSP432 DriverLib - v3_10_00_09 
 * -------------------------------------------
 *
 * --COPYRIGHT--,BSD,BSD
 * Copyright (c) 2014, Texas Instruments Incorporated
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * *  Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * *  Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * *  Neither the name of Texas Instruments Incorporated nor the names of
 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * --/COPYRIGHT--*/
#include <debug.h>
#include <pmap.h>
#include <hw_memmap.h>

void PMAP_configurePorts(const uint8_t *portMapping, uint8_t pxMAPy,
        uint8_t numberOfPorts, uint8_t portMapReconfigure)
{
    uint_fast16_t i;

    ASSERT(
            (portMapReconfigure == PMAP_ENABLE_RECONFIGURATION)
                    || (portMapReconfigure == PMAP_DISABLE_RECONFIGURATION));

    //Get write-access to port mapping registers:
    PMAP->KEYID = PMAP_KEYID_VAL;

    //Enable/Disable reconfiguration during runtime
    PMAP->CTL = (PMAP->CTL & ~PMAP_CTL_PRECFG) | portMapReconfigure;

    //Configure Port Mapping:
    
    for (i = 0; i < numberOfPorts * 8; i++)
    {
        HWREG8(PMAP_BASE + i + pxMAPy) = portMapping[i];
    }

    //Disable write-access to port mapping registers:
    PMAP->KEYID = 0;
}