| /* |
| * Copyright (c) 2015, 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" |
| |
| /******************************************************************************* |
| * Code |
| ******************************************************************************/ |
| |
| void WDOG_GetDefaultConfig(wdog_config_t *config) |
| { |
| assert(config); |
| |
| config->enableWdog = true; |
| config->clockSource = kWDOG_LpoClockSource; |
| config->prescaler = kWDOG_ClockPrescalerDivide1; |
| #if defined(FSL_FEATURE_WDOG_HAS_WAITEN) && FSL_FEATURE_WDOG_HAS_WAITEN |
| config->workMode.enableWait = true; |
| #endif /* FSL_FEATURE_WDOG_HAS_WAITEN */ |
| config->workMode.enableStop = false; |
| config->workMode.enableDebug = false; |
| config->enableUpdate = true; |
| config->enableInterrupt = false; |
| config->enableWindowMode = false; |
| config->windowValue = 0U; |
| config->timeoutValue = 0xFFFFU; |
| } |
| |
| void WDOG_Init(WDOG_Type *base, const wdog_config_t *config) |
| { |
| assert(config); |
| |
| uint32_t value = 0U; |
| uint32_t primaskValue = 0U; |
| |
| value = WDOG_STCTRLH_WDOGEN(config->enableWdog) | WDOG_STCTRLH_CLKSRC(config->clockSource) | |
| WDOG_STCTRLH_IRQRSTEN(config->enableInterrupt) | WDOG_STCTRLH_WINEN(config->enableWindowMode) | |
| WDOG_STCTRLH_ALLOWUPDATE(config->enableUpdate) | WDOG_STCTRLH_DBGEN(config->workMode.enableDebug) | |
| WDOG_STCTRLH_STOPEN(config->workMode.enableStop) | |
| #if defined(FSL_FEATURE_WDOG_HAS_WAITEN) && FSL_FEATURE_WDOG_HAS_WAITEN |
| WDOG_STCTRLH_WAITEN(config->workMode.enableWait) | |
| #endif /* FSL_FEATURE_WDOG_HAS_WAITEN */ |
| WDOG_STCTRLH_DISTESTWDOG(1U); |
| |
| /* Disable the global interrupts. Otherwise, an interrupt could effectively invalidate the unlock sequence |
| * and the WCT may expire. After the configuration finishes, re-enable the global interrupts. */ |
| primaskValue = DisableGlobalIRQ(); |
| WDOG_Unlock(base); |
| /* Wait one bus clock cycle */ |
| base->RSTCNT = 0U; |
| /* Set configruation */ |
| base->PRESC = WDOG_PRESC_PRESCVAL(config->prescaler); |
| base->WINH = (uint16_t)((config->windowValue >> 16U) & 0xFFFFU); |
| base->WINL = (uint16_t)((config->windowValue) & 0xFFFFU); |
| base->TOVALH = (uint16_t)((config->timeoutValue >> 16U) & 0xFFFFU); |
| base->TOVALL = (uint16_t)((config->timeoutValue) & 0xFFFFU); |
| base->STCTRLH = value; |
| EnableGlobalIRQ(primaskValue); |
| } |
| |
| void WDOG_Deinit(WDOG_Type *base) |
| { |
| uint32_t primaskValue = 0U; |
| |
| /* Disable the global interrupts */ |
| primaskValue = DisableGlobalIRQ(); |
| WDOG_Unlock(base); |
| /* Wait one bus clock cycle */ |
| base->RSTCNT = 0U; |
| WDOG_Disable(base); |
| EnableGlobalIRQ(primaskValue); |
| WDOG_ClearResetCount(base); |
| } |
| |
| void WDOG_SetTestModeConfig(WDOG_Type *base, wdog_test_config_t *config) |
| { |
| assert(config); |
| |
| uint32_t value = 0U; |
| uint32_t primaskValue = 0U; |
| |
| value = WDOG_STCTRLH_DISTESTWDOG(0U) | WDOG_STCTRLH_TESTWDOG(1U) | WDOG_STCTRLH_TESTSEL(config->testMode) | |
| WDOG_STCTRLH_BYTESEL(config->testedByte) | WDOG_STCTRLH_IRQRSTEN(0U) | WDOG_STCTRLH_WDOGEN(1U) | |
| WDOG_STCTRLH_ALLOWUPDATE(1U); |
| |
| /* Disable the global interrupts. Otherwise, an interrupt could effectively invalidate the unlock sequence |
| * and the WCT may expire. After the configuration finishes, re-enable the global interrupts. */ |
| primaskValue = DisableGlobalIRQ(); |
| WDOG_Unlock(base); |
| /* Wait one bus clock cycle */ |
| base->RSTCNT = 0U; |
| /* Set configruation */ |
| base->TOVALH = (uint16_t)((config->timeoutValue >> 16U) & 0xFFFFU); |
| base->TOVALL = (uint16_t)((config->timeoutValue) & 0xFFFFU); |
| base->STCTRLH = value; |
| EnableGlobalIRQ(primaskValue); |
| } |
| |
| uint32_t WDOG_GetStatusFlags(WDOG_Type *base) |
| { |
| uint32_t status_flag = 0U; |
| |
| status_flag |= (base->STCTRLH & WDOG_STCTRLH_WDOGEN_MASK); |
| status_flag |= (base->STCTRLL & WDOG_STCTRLL_INTFLG_MASK); |
| |
| return status_flag; |
| } |
| |
| void WDOG_ClearStatusFlags(WDOG_Type *base, uint32_t mask) |
| { |
| if (mask & kWDOG_TimeoutFlag) |
| { |
| base->STCTRLL |= WDOG_STCTRLL_INTFLG_MASK; |
| } |
| } |
| |
| void WDOG_Refresh(WDOG_Type *base) |
| { |
| uint32_t primaskValue = 0U; |
| |
| /* Disable the global interrupt to protect refresh sequence */ |
| primaskValue = DisableGlobalIRQ(); |
| base->REFRESH = WDOG_FIRST_WORD_OF_REFRESH; |
| base->REFRESH = WDOG_SECOND_WORD_OF_REFRESH; |
| EnableGlobalIRQ(primaskValue); |
| } |