| /* |
| * 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_ewm.h" |
| |
| /******************************************************************************* |
| * Code |
| ******************************************************************************/ |
| |
| void EWM_Init(EWM_Type *base, const ewm_config_t *config) |
| { |
| assert(config); |
| |
| uint32_t value = 0U; |
| |
| #if !((defined(FSL_FEATURE_SOC_PCC_COUNT) && FSL_FEATURE_SOC_PCC_COUNT) && \ |
| (defined(FSL_FEATURE_PCC_SUPPORT_EWM_CLOCK_REMOVE) && FSL_FEATURE_PCC_SUPPORT_EWM_CLOCK_REMOVE)) |
| #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) |
| CLOCK_EnableClock(kCLOCK_Ewm0); |
| #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ |
| #endif |
| value = EWM_CTRL_EWMEN(config->enableEwm) | EWM_CTRL_ASSIN(config->setInputAssertLogic) | |
| EWM_CTRL_INEN(config->enableEwmInput) | EWM_CTRL_INTEN(config->enableInterrupt); |
| #if defined(FSL_FEATURE_EWM_HAS_PRESCALER) && FSL_FEATURE_EWM_HAS_PRESCALER |
| base->CLKPRESCALER = config->prescaler; |
| #endif /* FSL_FEATURE_EWM_HAS_PRESCALER */ |
| |
| #if defined(FSL_FEATURE_EWM_HAS_CLOCK_SELECT) && FSL_FEATURE_EWM_HAS_CLOCK_SELECT |
| base->CLKCTRL = config->clockSource; |
| #endif /* FSL_FEATURE_EWM_HAS_CLOCK_SELECT*/ |
| |
| base->CMPL = config->compareLowValue; |
| base->CMPH = config->compareHighValue; |
| base->CTRL = value; |
| } |
| |
| void EWM_Deinit(EWM_Type *base) |
| { |
| EWM_DisableInterrupts(base, kEWM_InterruptEnable); |
| #if !((defined(FSL_FEATURE_SOC_PCC_COUNT) && FSL_FEATURE_SOC_PCC_COUNT) && \ |
| (defined(FSL_FEATURE_PCC_SUPPORT_EWM_CLOCK_REMOVE) && FSL_FEATURE_PCC_SUPPORT_EWM_CLOCK_REMOVE)) |
| #if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) |
| CLOCK_DisableClock(kCLOCK_Ewm0); |
| #endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */ |
| #endif /* FSL_FEATURE_PCC_SUPPORT_EWM_CLOCK_REMOVE */ |
| } |
| |
| void EWM_GetDefaultConfig(ewm_config_t *config) |
| { |
| assert(config); |
| |
| config->enableEwm = true; |
| config->enableEwmInput = false; |
| config->setInputAssertLogic = false; |
| config->enableInterrupt = false; |
| #if defined(FSL_FEATURE_EWM_HAS_CLOCK_SELECT) && FSL_FEATURE_EWM_HAS_CLOCK_SELECT |
| config->clockSource = kEWM_LpoClockSource0; |
| #endif /* FSL_FEATURE_EWM_HAS_CLOCK_SELECT*/ |
| #if defined(FSL_FEATURE_EWM_HAS_PRESCALER) && FSL_FEATURE_EWM_HAS_PRESCALER |
| config->prescaler = 0U; |
| #endif /* FSL_FEATURE_EWM_HAS_PRESCALER */ |
| config->compareLowValue = 0U; |
| config->compareHighValue = 0xFEU; |
| } |
| |
| void EWM_Refresh(EWM_Type *base) |
| { |
| uint32_t primaskValue = 0U; |
| |
| /* Disable the global interrupt to protect refresh sequence */ |
| primaskValue = DisableGlobalIRQ(); |
| base->SERV = (uint8_t)0xB4U; |
| base->SERV = (uint8_t)0x2CU; |
| EnableGlobalIRQ(primaskValue); |
| } |