| /* |
| * Copyright (c) 2016, Freescale Semiconductor, Inc. |
| * Copyright 2016-2017 NXP |
| * |
| * 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 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. |
| * |
| * 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" |
| |
| /******************************************************************************* |
| * 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; |
| } |