rt-thread/bsp/imxrt1052-evk/Libraries/drivers/fsl_wdog.c

142 lines
4.9 KiB
C

/*
* The Clear BSD License
* Copyright (c) 2016, Freescale Semiconductor, Inc.
* Copyright 2016-2017 NXP
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted (subject to the limitations in the disclaimer below) 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 the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE.
* 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_wdog.h"
/* Component ID definition, used by tools. */
#ifndef FSL_COMPONENT_ID
#define FSL_COMPONENT_ID "platform.drivers.wdog01"
#endif
/*******************************************************************************
* Variables
******************************************************************************/
static WDOG_Type *const s_wdogBases[] = WDOG_BASE_PTRS;
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
/* Array of WDOG clock name. */
static const clock_ip_name_t s_wdogClock[] = WDOG_CLOCKS;
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
/*******************************************************************************
* Code
******************************************************************************/
static uint32_t WDOG_GetInstance(WDOG_Type *base)
{
uint32_t instance;
/* Find the instance index from base address mappings. */
for (instance = 0; instance < ARRAY_SIZE(s_wdogBases); instance++)
{
if (s_wdogBases[instance] == base)
{
break;
}
}
assert(instance < ARRAY_SIZE(s_wdogBases));
return instance;
}
void WDOG_GetDefaultConfig(wdog_config_t *config)
{
assert(config);
config->enableWdog = true;
config->workMode.enableWait = false;
config->workMode.enableStop = false;
config->workMode.enableDebug = false;
config->enableInterrupt = false;
config->softwareResetExtension = false;
config->enablePowerDown = false;
config->softwareAssertion= true;
config->softwareResetSignal = true;
config->timeoutValue = 0xffu;
config->interruptTimeValue = 0x04u;
}
void WDOG_Init(WDOG_Type *base, const wdog_config_t *config)
{
assert(config);
uint16_t value = 0u;
value = WDOG_WCR_WDE(config->enableWdog) | WDOG_WCR_WDW(config->workMode.enableWait) |
WDOG_WCR_WDZST(config->workMode.enableStop) | WDOG_WCR_WDBG(config->workMode.enableDebug) |
WDOG_WCR_SRE(config->softwareResetExtension) | WDOG_WCR_WT(config->timeoutValue) |
WDOG_WCR_WDA(config->softwareAssertion) | WDOG_WCR_SRS(config->softwareResetSignal);
/* Set configruation */
CLOCK_EnableClock(s_wdogClock[WDOG_GetInstance(base)]);
base->WICR = WDOG_WICR_WICT(config->interruptTimeValue) | WDOG_WICR_WIE(config->enableInterrupt);
base->WMCR = WDOG_WMCR_PDE(config->enablePowerDown);
base->WCR = value;
}
void WDOG_Deinit(WDOG_Type *base)
{
if (base->WCR & WDOG_WCR_WDBG_MASK)
{
WDOG_Disable(base);
}
}
uint16_t WDOG_GetStatusFlags(WDOG_Type *base)
{
uint16_t status_flag = 0U;
status_flag |= (base->WCR & WDOG_WCR_WDE_MASK);
status_flag |= (base->WRSR & WDOG_WRSR_POR_MASK);
status_flag |= (base->WRSR & WDOG_WRSR_TOUT_MASK);
status_flag |= (base->WRSR & WDOG_WRSR_SFTW_MASK);
status_flag |= (base->WICR & WDOG_WICR_WTIS_MASK);
return status_flag;
}
void WDOG_ClearInterruptStatus(WDOG_Type *base, uint16_t mask)
{
if (mask & kWDOG_InterruptFlag)
{
base->WICR |= WDOG_WICR_WTIS_MASK;
}
}
void WDOG_Refresh(WDOG_Type *base)
{
base->WSR = WDOG_REFRESH_KEY & 0xFFFFU;
base->WSR = (WDOG_REFRESH_KEY >> 16U) & 0xFFFFU;
}