| /* |
| * Copyright (c) 2015, Freescale Semiconductor, Inc. |
| * All rights reserved. |
| * |
| * 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 Freescale Semiconductor, Inc. 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 "wdog_imx.h" |
| |
| /******************************************************************************* |
| * Code |
| ******************************************************************************/ |
| |
| /*FUNCTION********************************************************************** |
| * |
| * Function Name : WDOG_Enable |
| * Description : Configure WDOG funtions, call once only |
| * |
| *END**************************************************************************/ |
| void WDOG_Enable(WDOG_Type *base, uint8_t timeout) |
| { |
| uint16_t wcr = base->WCR & (~WDOG_WCR_WT_MASK); |
| base->WCR = wcr | WDOG_WCR_WT(timeout) | WDOG_WCR_WDE_MASK; |
| } |
| |
| /*FUNCTION********************************************************************** |
| * |
| * Function Name : WDOG_Reset |
| * Description : Assert WDOG reset signal |
| * |
| *END**************************************************************************/ |
| void WDOG_Reset(WDOG_Type *base, bool wda, bool srs) |
| { |
| uint16_t wcr = base->WCR; |
| |
| if (wda) |
| wcr &= ~WDOG_WCR_WDA_MASK; |
| if (srs) |
| wcr &= ~WDOG_WCR_SRS_MASK; |
| |
| base->WCR = wcr; |
| } |
| |
| /*FUNCTION********************************************************************** |
| * |
| * Function Name : WDOG_Refresh |
| * Description : Refresh the WDOG to prevent timeout |
| * |
| *END**************************************************************************/ |
| void WDOG_Refresh(WDOG_Type *base) |
| { |
| base->WSR = 0x5555; |
| base->WSR = 0xAAAA; |
| } |
| |
| /******************************************************************************* |
| * EOF |
| ******************************************************************************/ |
