142 lines
4.9 KiB
C
142 lines
4.9 KiB
C
/*
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* The Clear BSD License
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* Copyright (c) 2016, Freescale Semiconductor, Inc.
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* Copyright 2016-2017 NXP
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted (subject to the limitations in the disclaimer below) provided
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* that the following conditions are met:
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*
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* o Redistributions of source code must retain the above copyright notice, this list
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* of conditions and the following disclaimer.
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*
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* o Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or
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* other materials provided with the distribution.
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*
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* o Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "fsl_wdog.h"
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/* Component ID definition, used by tools. */
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#ifndef FSL_COMPONENT_ID
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#define FSL_COMPONENT_ID "platform.drivers.wdog01"
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#endif
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/*******************************************************************************
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* Variables
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******************************************************************************/
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static WDOG_Type *const s_wdogBases[] = WDOG_BASE_PTRS;
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#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
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/* Array of WDOG clock name. */
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static const clock_ip_name_t s_wdogClock[] = WDOG_CLOCKS;
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#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
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/*******************************************************************************
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* Code
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******************************************************************************/
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static uint32_t WDOG_GetInstance(WDOG_Type *base)
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{
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uint32_t instance;
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/* Find the instance index from base address mappings. */
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for (instance = 0; instance < ARRAY_SIZE(s_wdogBases); instance++)
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{
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if (s_wdogBases[instance] == base)
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{
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break;
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}
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}
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assert(instance < ARRAY_SIZE(s_wdogBases));
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return instance;
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}
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void WDOG_GetDefaultConfig(wdog_config_t *config)
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{
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assert(config);
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config->enableWdog = true;
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config->workMode.enableWait = false;
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config->workMode.enableStop = false;
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config->workMode.enableDebug = false;
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config->enableInterrupt = false;
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config->softwareResetExtension = false;
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config->enablePowerDown = false;
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config->softwareAssertion= true;
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config->softwareResetSignal = true;
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config->timeoutValue = 0xffu;
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config->interruptTimeValue = 0x04u;
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}
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void WDOG_Init(WDOG_Type *base, const wdog_config_t *config)
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{
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assert(config);
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uint16_t value = 0u;
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value = WDOG_WCR_WDE(config->enableWdog) | WDOG_WCR_WDW(config->workMode.enableWait) |
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WDOG_WCR_WDZST(config->workMode.enableStop) | WDOG_WCR_WDBG(config->workMode.enableDebug) |
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WDOG_WCR_SRE(config->softwareResetExtension) | WDOG_WCR_WT(config->timeoutValue) |
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WDOG_WCR_WDA(config->softwareAssertion) | WDOG_WCR_SRS(config->softwareResetSignal);
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/* Set configruation */
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CLOCK_EnableClock(s_wdogClock[WDOG_GetInstance(base)]);
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base->WICR = WDOG_WICR_WICT(config->interruptTimeValue) | WDOG_WICR_WIE(config->enableInterrupt);
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base->WMCR = WDOG_WMCR_PDE(config->enablePowerDown);
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base->WCR = value;
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}
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void WDOG_Deinit(WDOG_Type *base)
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{
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if (base->WCR & WDOG_WCR_WDBG_MASK)
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{
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WDOG_Disable(base);
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}
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}
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uint16_t WDOG_GetStatusFlags(WDOG_Type *base)
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{
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uint16_t status_flag = 0U;
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status_flag |= (base->WCR & WDOG_WCR_WDE_MASK);
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status_flag |= (base->WRSR & WDOG_WRSR_POR_MASK);
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status_flag |= (base->WRSR & WDOG_WRSR_TOUT_MASK);
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status_flag |= (base->WRSR & WDOG_WRSR_SFTW_MASK);
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status_flag |= (base->WICR & WDOG_WICR_WTIS_MASK);
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return status_flag;
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}
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void WDOG_ClearInterruptStatus(WDOG_Type *base, uint16_t mask)
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{
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if (mask & kWDOG_InterruptFlag)
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{
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base->WICR |= WDOG_WICR_WTIS_MASK;
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}
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}
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void WDOG_Refresh(WDOG_Type *base)
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{
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base->WSR = WDOG_REFRESH_KEY & 0xFFFFU;
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base->WSR = (WDOG_REFRESH_KEY >> 16U) & 0xFFFFU;
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}
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