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/*
* Copyright (c) 2013 - 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 "fsl_ewm_driver.h"
#include "fsl_interrupt_manager.h"
#include "fsl_clock_manager.h"
#if FSL_FEATURE_SOC_EWM_COUNT
/*******************************************************************************
* Definitions
*******************************************************************************/
/*******************************************************************************
* Variables
******************************************************************************/
/*******************************************************************************
* Code
*******************************************************************************/
/*FUNCTION****************************************************************
*
* Function Name : EWM_DRV_Init
* Description : Initialize EWM
* This function is used to initialize the EWM, after called, the EWM
* will run immediately according to the configure.
*
*END*********************************************************************/
ewm_status_t EWM_DRV_Init(uint32_t instance, const ewm_config_t* ConfigPtr)
{
assert(instance < EWM_INSTANCE_COUNT);
EWM_Type * base;
base = g_ewmBase[instance];
if(!ConfigPtr)
{
return kStatus_EWM_NullArgument;
}
if(ConfigPtr->intEnable)
{
INT_SYS_EnableIRQ(g_ewmIrqId[instance]); /*!< Enable EWM interrupt in NVIC level */
}
else
{
INT_SYS_DisableIRQ(g_ewmIrqId[instance]); /*!< Disable EWM interrupt in NVIC level */
}
CLOCK_SYS_EnableEwmClock(instance); /*!< Enable ewm clock */
EWM_HAL_SetConfig(base, ConfigPtr);
return kStatus_EWM_Success;
}
/*FUNCTION****************************************************************
*
* Function Name : EWM_DRV_Deinit
* Description : Shutdown EWM clock
* This function is used to shut down the EWM.
*
*END*********************************************************************/
void EWM_DRV_Deinit(uint32_t instance)
{
assert(instance < EWM_INSTANCE_COUNT);
EWM_Type * base = g_ewmBase[instance];
EWM_HAL_SetIntCmd(base, false);
CLOCK_SYS_DisableEwmClock(instance);
}
/*FUNCTION****************************************************************
*
* Function Name : EWM_DRV_IsRunning
* Description : Get EWM running status
* This function is used to get the EWM running status.
*
*END*********************************************************************/
bool EWM_DRV_IsRunning(uint32_t instance)
{
assert(instance < EWM_INSTANCE_COUNT);
EWM_Type * base = g_ewmBase[instance];
return EWM_HAL_IsEnable(base);
}
/*FUNCTION****************************************************************
*
* Function Name : EWM_DRV_Refresh
* Description : Refresh EWM counter.
* This function is used to feed the EWM, it will set the EWM timer count to zero and
* should be called before EWM timer is timeout, otherwise a EWM_out output signal will assert.
*
*END*********************************************************************/
void EWM_DRV_Refresh(uint32_t instance)
{
assert(instance < EWM_INSTANCE_COUNT);
EWM_Type * base;
base = g_ewmBase[instance];
INT_SYS_DisableIRQGlobal();
EWM_HAL_Refresh(base);
INT_SYS_EnableIRQGlobal();
}
/*FUNCTION*********************************************************************
*
* Function Name : EWM_DRV_SetIntCmd
* Description : Enables/disables EWM interrupt
*END*************************************************************************/
void EWM_DRV_SetIntCmd(uint32_t instance, bool enable)
{
EWM_Type * base;
base = g_ewmBase[instance];
EWM_HAL_SetIntCmd(base, enable);
}
#endif
/*******************************************************************************
* EOF
*******************************************************************************/
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