| /* |
| * 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_rtwdog.h" |
| |
| /******************************************************************************* |
| * Code |
| ******************************************************************************/ |
| |
| void RTWDOG_ClearStatusFlags(RTWDOG_Type *base, uint32_t mask) |
| { |
| if (mask & kRTWDOG_InterruptFlag) |
| { |
| base->CS |= RTWDOG_CS_FLG_MASK; |
| } |
| } |
| |
| void RTWDOG_GetDefaultConfig(rtwdog_config_t *config) |
| { |
| assert(config); |
| |
| config->enableRtwdog = true; |
| config->clockSource = kRTWDOG_ClockSource1; |
| config->prescaler = kRTWDOG_ClockPrescalerDivide1; |
| config->workMode.enableWait = true; |
| config->workMode.enableStop = false; |
| config->workMode.enableDebug = false; |
| config->testMode = kRTWDOG_TestModeDisabled; |
| config->enableUpdate = true; |
| config->enableInterrupt = false; |
| config->enableWindowMode = false; |
| config->windowValue = 0U; |
| config->timeoutValue = 0xFFFFU; |
| } |
| |
| void RTWDOG_Init(RTWDOG_Type *base, const rtwdog_config_t *config) |
| { |
| assert(config); |
| |
| uint32_t value = 0U; |
| uint32_t primaskValue = 0U; |
| |
| value = RTWDOG_CS_EN(config->enableRtwdog) | RTWDOG_CS_CLK(config->clockSource) | RTWDOG_CS_INT(config->enableInterrupt) | |
| RTWDOG_CS_WIN(config->enableWindowMode) | RTWDOG_CS_UPDATE(config->enableUpdate) | |
| RTWDOG_CS_DBG(config->workMode.enableDebug) | RTWDOG_CS_STOP(config->workMode.enableStop) | |
| RTWDOG_CS_WAIT(config->workMode.enableWait) | RTWDOG_CS_PRES(config->prescaler) | RTWDOG_CS_CMD32EN(true) | |
| RTWDOG_CS_TST(config->testMode); |
| |
| /* 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(); |
| RTWDOG_Unlock(base); |
| base->WIN = config->windowValue; |
| base->TOVAL = config->timeoutValue; |
| base->CS = value; |
| EnableGlobalIRQ(primaskValue); |
| } |
| |
| void RTWDOG_Deinit(RTWDOG_Type *base) |
| { |
| uint32_t primaskValue = 0U; |
| |
| /* Disable the global interrupts */ |
| primaskValue = DisableGlobalIRQ(); |
| RTWDOG_Unlock(base); |
| RTWDOG_Disable(base); |
| EnableGlobalIRQ(primaskValue); |
| } |