ext/hal/nxp/imx/drivers/epit.c

/*
 * Copyright (c) 2015, Freescale Semiconductor, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * o Redistributions of source code must retain the above copyright notice, this list
 *   of conditions and the following disclaimer.
 *
 * o 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.
 *
 * o Neither the name of Freescale Semiconductor, Inc. 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 HOLDER 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; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "epit.h"

/*******************************************************************************
 * Code
 ******************************************************************************/

/*FUNCTION**********************************************************************
 *
 * Function Name : EPIT_Init
 * Description   : Initializes the EPIT module according to the specified
 *                 parameters in the initConfig.
 *
 *END**************************************************************************/
void EPIT_Init(EPIT_Type* base, const epit_init_config_t* initConfig)
{
    assert(initConfig);

    EPIT_CR_REG(base) = 0;

    EPIT_SoftReset(base);

    EPIT_CR_REG(base) = (initConfig->freeRun ? EPIT_CR_RLD_MASK : 0)       |
                        (initConfig->waitEnable ? EPIT_CR_WAITEN_MASK : 0) |
                        (initConfig->stopEnable ? EPIT_CR_STOPEN_MASK : 0) |
                        (initConfig->dbgEnable ? EPIT_CR_DBGEN_MASK : 0)   |
                        (initConfig->enableMode ? EPIT_CR_ENMOD_MASK : 0);
}

/*FUNCTION**********************************************************************
 *
 * Function Name : EPIT_SetOverwriteCounter
 * Description   : Enable or disable EPIT overwrite counter immediately.
 *
 *END**************************************************************************/
void EPIT_SetOverwriteCounter(EPIT_Type* base, bool enable)
{
    if(enable)
        EPIT_CR_REG(base) |= EPIT_CR_IOVW_MASK;
    else
        EPIT_CR_REG(base) &= ~EPIT_CR_IOVW_MASK;
}

/*FUNCTION**********************************************************************
 *
 * Function Name : EPIT_SetIntCmd
 * Description   : Enable or disable EPIT interrupt.
 *
 *END**************************************************************************/
void EPIT_SetIntCmd(EPIT_Type* base, bool enable)
{
    if (enable)
        EPIT_CR_REG(base) |= EPIT_CR_OCIEN_MASK;
    else
        EPIT_CR_REG(base) &= ~EPIT_CR_OCIEN_MASK;
}

/*******************************************************************************
 * EOF
 ******************************************************************************/