Diff: TARGET_K22F/TOOLCHAIN_IAR/fsl_wdog.h

Revision:

171:3a7713b1edbc

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TARGET_K22F/TOOLCHAIN_IAR/fsl_wdog.h	Thu Nov 08 11:45:42 2018 +0000
@@ -0,0 +1,434 @@
+/*
+ * 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.
+ */
+#ifndef _FSL_WDOG_H_
+#define _FSL_WDOG_H_
+
+#include "fsl_common.h"
+
+/*!
+ * @addtogroup wdog_driver
+ * @{
+ */
+
+/*! @file */
+
+/*******************************************************************************
+ * Definitions
+ *******************************************************************************/
+
+/*! @name Driver version */
+/*@{*/
+/*! @brief Defines WDOG driver version 2.0.0. */
+#define FSL_WDOG_DRIVER_VERSION (MAKE_VERSION(2, 0, 0))
+/*@}*/
+
+/*! @name Unlock sequence */
+/*@{*/
+#define WDOG_FIRST_WORD_OF_UNLOCK (0xC520U)  /*!< First word of unlock sequence */
+#define WDOG_SECOND_WORD_OF_UNLOCK (0xD928U) /*!< Second word of unlock sequence */
+/*@}*/
+
+/*! @name Refresh sequence */
+/*@{*/
+#define WDOG_FIRST_WORD_OF_REFRESH (0xA602U)  /*!< First word of refresh sequence */
+#define WDOG_SECOND_WORD_OF_REFRESH (0xB480U) /*!< Second word of refresh sequence */
+/*@}*/
+
+/*! @brief Describes WDOG clock source. */
+typedef enum _wdog_clock_source
+{
+    kWDOG_LpoClockSource = 0U,       /*!< WDOG clock sourced from LPO*/
+    kWDOG_AlternateClockSource = 1U, /*!< WDOG clock sourced from alternate clock source*/
+} wdog_clock_source_t;
+
+/*! @brief Defines WDOG work mode. */
+typedef struct _wdog_work_mode
+{
+#if defined(FSL_FEATURE_WDOG_HAS_WAITEN) && FSL_FEATURE_WDOG_HAS_WAITEN
+    bool enableWait;  /*!< Enables or disables WDOG in wait mode  */
+#endif                /* FSL_FEATURE_WDOG_HAS_WAITEN */
+    bool enableStop;  /*!< Enables or disables WDOG in stop mode  */
+    bool enableDebug; /*!< Enables or disables WDOG in debug mode */
+} wdog_work_mode_t;
+
+/*! @brief Describes the selection of the clock prescaler. */
+typedef enum _wdog_clock_prescaler
+{
+    kWDOG_ClockPrescalerDivide1 = 0x0U, /*!< Divided by 1 */
+    kWDOG_ClockPrescalerDivide2 = 0x1U, /*!< Divided by 2 */
+    kWDOG_ClockPrescalerDivide3 = 0x2U, /*!< Divided by 3 */
+    kWDOG_ClockPrescalerDivide4 = 0x3U, /*!< Divided by 4 */
+    kWDOG_ClockPrescalerDivide5 = 0x4U, /*!< Divided by 5 */
+    kWDOG_ClockPrescalerDivide6 = 0x5U, /*!< Divided by 6 */
+    kWDOG_ClockPrescalerDivide7 = 0x6U, /*!< Divided by 7 */
+    kWDOG_ClockPrescalerDivide8 = 0x7U, /*!< Divided by 8 */
+} wdog_clock_prescaler_t;
+
+/*! @brief Describes WDOG configuration structure. */
+typedef struct _wdog_config
+{
+    bool enableWdog;                  /*!< Enables or disables WDOG */
+    wdog_clock_source_t clockSource;  /*!< Clock source select */
+    wdog_clock_prescaler_t prescaler; /*!< Clock prescaler value */
+    wdog_work_mode_t workMode;        /*!< Configures WDOG work mode in debug stop and wait mode */
+    bool enableUpdate;                /*!< Update write-once register enable */
+    bool enableInterrupt;             /*!< Enables or disables WDOG interrupt */
+    bool enableWindowMode;            /*!< Enables or disables WDOG window mode */
+    uint32_t windowValue;             /*!< Window value */
+    uint32_t timeoutValue;            /*!< Timeout value */
+} wdog_config_t;
+
+/*! @brief Describes WDOG test mode. */
+typedef enum _wdog_test_mode
+{
+    kWDOG_QuickTest = 0U, /*!< Selects quick test */
+    kWDOG_ByteTest = 1U,  /*!< Selects byte test */
+} wdog_test_mode_t;
+
+/*! @brief Describes WDOG tested byte selection in byte test mode. */
+typedef enum _wdog_tested_byte
+{
+    kWDOG_TestByte0 = 0U, /*!< Byte 0 selected in byte test mode */
+    kWDOG_TestByte1 = 1U, /*!< Byte 1 selected in byte test mode */
+    kWDOG_TestByte2 = 2U, /*!< Byte 2 selected in byte test mode */
+    kWDOG_TestByte3 = 3U, /*!< Byte 3 selected in byte test mode */
+} wdog_tested_byte_t;
+
+/*! @brief Describes WDOG test mode configuration structure. */
+typedef struct _wdog_test_config
+{
+    wdog_test_mode_t testMode;     /*!< Selects test mode */
+    wdog_tested_byte_t testedByte; /*!< Selects tested byte in byte test mode */
+    uint32_t timeoutValue;         /*!< Timeout value */
+} wdog_test_config_t;
+
+/*!
+ * @brief WDOG interrupt configuration structure, default settings all disabled.
+ *
+ * This structure contains the settings for all of the WDOG interrupt configurations.
+ */
+enum _wdog_interrupt_enable_t
+{
+    kWDOG_InterruptEnable = WDOG_STCTRLH_IRQRSTEN_MASK, /*!< WDOG timeout will generate interrupt before reset*/
+};
+
+/*!
+ * @brief WDOG status flags.
+ *
+ * This structure contains the WDOG status flags for use in the WDOG functions.
+ */
+enum _wdog_status_flags_t
+{
+    kWDOG_RunningFlag = WDOG_STCTRLH_WDOGEN_MASK, /*!< Running flag, set when WDOG is enabled*/
+    kWDOG_TimeoutFlag = WDOG_STCTRLL_INTFLG_MASK, /*!< Interrupt flag, set when an exception occurs*/
+};
+
+/*******************************************************************************
+ * API
+ *******************************************************************************/
+
+#if defined(__cplusplus)
+extern "C" {
+#endif /* __cplusplus */
+
+/*!
+ * @name WDOG Initialization and De-initialization
+ * @{
+ */
+
+/*!
+ * @brief Initializes WDOG configure sturcture.
+ *
+ * This function initializes the WDOG configure structure to default value. The default
+ * value are:
+ * @code
+ *   wdogConfig->enableWdog = true;
+ *   wdogConfig->clockSource = kWDOG_LpoClockSource;
+ *   wdogConfig->prescaler = kWDOG_ClockPrescalerDivide1;
+ *   wdogConfig->workMode.enableWait = true;
+ *   wdogConfig->workMode.enableStop = false;
+ *   wdogConfig->workMode.enableDebug = false;
+ *   wdogConfig->enableUpdate = true;
+ *   wdogConfig->enableInterrupt = false;
+ *   wdogConfig->enableWindowMode = false;
+ *   wdogConfig->windowValue = 0;
+ *   wdogConfig->timeoutValue = 0xFFFFU;
+ * @endcode
+ *
+ * @param config Pointer to WDOG config structure.
+ * @see wdog_config_t
+ */
+void WDOG_GetDefaultConfig(wdog_config_t *config);
+
+/*!
+ * @brief Initializes the WDOG.
+ *
+ * This function initializes the WDOG. When called, the WDOG runs according to the configuration.
+ * If user wants to reconfigure WDOG without forcing a reset first, enableUpdate must be set to true
+ * in configuration.
+ *
+ * Example:
+ * @code
+ *   wdog_config_t config;
+ *   WDOG_GetDefaultConfig(&config);
+ *   config.timeoutValue = 0x7ffU;
+ *   config.enableUpdate = true;
+ *   WDOG_Init(wdog_base,&config);
+ * @endcode
+ *
+ * @param base   WDOG peripheral base address
+ * @param config The configuration of WDOG
+ */
+void WDOG_Init(WDOG_Type *base, const wdog_config_t *config);
+
+/*!
+ * @brief Shuts down the WDOG.
+ *
+ * This function shuts down the WDOG.
+ * Make sure that the WDOG_STCTRLH.ALLOWUPDATE is 1 which means that the register update is enabled.
+ */
+void WDOG_Deinit(WDOG_Type *base);
+
+/*!
+ * @brief Configures WDOG functional test.
+ *
+ * This function is used to configure the WDOG functional test. When called, the WDOG goes into test mode
+ * and runs according to the configuration.
+ * Make sure that the WDOG_STCTRLH.ALLOWUPDATE is 1 which means that the register update is enabled.
+ *
+ * Example:
+ * @code
+ *   wdog_test_config_t test_config;
+ *   test_config.testMode = kWDOG_QuickTest;
+ *   test_config.timeoutValue = 0xfffffu;
+ *   WDOG_SetTestModeConfig(wdog_base, &test_config);
+ * @endcode
+ * @param base   WDOG peripheral base address
+ * @param config The functional test configuration of WDOG
+ */
+void WDOG_SetTestModeConfig(WDOG_Type *base, wdog_test_config_t *config);
+
+/* @} */
+
+/*!
+ * @name WDOG Functional Operation
+ * @{
+ */
+
+/*!
+ * @brief Enables the WDOG module.
+ *
+ * This function write value into WDOG_STCTRLH register to enable the WDOG, it is a write-once register,
+ * make sure that the WCT window is still open and this register has not been written in this WCT
+ * while this function is called.
+ *
+ * @param base WDOG peripheral base address
+ */
+static inline void WDOG_Enable(WDOG_Type *base)
+{
+    base->STCTRLH |= WDOG_STCTRLH_WDOGEN_MASK;
+}
+
+/*!
+ * @brief Disables the WDOG module.
+ *
+ * This function write value into WDOG_STCTRLH register to disable the WDOG, it is a write-once register,
+ * make sure that the WCT window is still open and this register has not been written in this WCT
+ * while this function is called.
+ *
+ * @param base WDOG peripheral base address
+ */
+static inline void WDOG_Disable(WDOG_Type *base)
+{
+    base->STCTRLH &= ~WDOG_STCTRLH_WDOGEN_MASK;
+}
+
+/*!
+ * @brief Enable WDOG interrupt.
+ *
+ * This function write value into WDOG_STCTRLH register to enable WDOG interrupt, it is a write-once register,
+ * make sure that the WCT window is still open and this register has not been written in this WCT
+ * while this function is called.
+ *
+ * @param base WDOG peripheral base address
+ * @param mask The interrupts to enable
+ *        The parameter can be combination of the following source if defined:
+ *        @arg kWDOG_InterruptEnable
+ */
+static inline void WDOG_EnableInterrupts(WDOG_Type *base, uint32_t mask)
+{
+    base->STCTRLH |= mask;
+}
+
+/*!
+ * @brief Disable WDOG interrupt.
+ *
+ * This function write value into WDOG_STCTRLH register to disable WDOG interrupt, it is a write-once register,
+ * make sure that the WCT window is still open and this register has not been written in this WCT
+ * while this function is called.
+ *
+ * @param base WDOG peripheral base address
+ * @param mask The interrupts to disable
+ *        The parameter can be combination of the following source if defined:
+ *        @arg kWDOG_InterruptEnable
+ */
+static inline void WDOG_DisableInterrupts(WDOG_Type *base, uint32_t mask)
+{
+    base->STCTRLH &= ~mask;
+}
+
+/*!
+ * @brief Gets WDOG all status flags.
+ *
+ * This function gets all status flags.
+ *
+ * Example for getting Running Flag:
+ * @code
+ *   uint32_t status;
+ *   status = WDOG_GetStatusFlags(wdog_base) & kWDOG_RunningFlag;
+ * @endcode
+ * @param base        WDOG peripheral base address
+ * @return            State of the status flag: asserted (true) or not-asserted (false).@see _wdog_status_flags_t
+ *                    - true: related status flag has been set.
+ *                    - false: related status flag is not set.
+ */
+uint32_t WDOG_GetStatusFlags(WDOG_Type *base);
+
+/*!
+ * @brief Clear WDOG flag.
+ *
+ * This function clears WDOG status flag.
+ *
+ * Example for clearing timeout(interrupt) flag:
+ * @code
+ *   WDOG_ClearStatusFlags(wdog_base,kWDOG_TimeoutFlag);
+ * @endcode
+ * @param base        WDOG peripheral base address
+ * @param mask        The status flags to clear.
+ *                    The parameter could be any combination of the following values:
+ *                    kWDOG_TimeoutFlag
+ */
+void WDOG_ClearStatusFlags(WDOG_Type *base, uint32_t mask);
+
+/*!
+ * @brief Set the WDOG timeout value.
+ *
+ * This function sets the timeout value.
+ * It should be ensured that the time-out value for the WDOG is always greater than
+ * 2xWCT time + 20 bus clock cycles.
+ * This function write value into WDOG_TOVALH and WDOG_TOVALL registers which are wirte-once.
+ * Make sure the WCT window is still open and these two registers have not been written in this WCT
+ * while this function is called.
+ *
+ * @param base WDOG peripheral base address
+ * @param timeoutCount WDOG timeout value, count of WDOG clock tick.
+ */
+static inline void WDOG_SetTimeoutValue(WDOG_Type *base, uint32_t timeoutCount)
+{
+    base->TOVALH = (uint16_t)((timeoutCount >> 16U) & 0xFFFFU);
+    base->TOVALL = (uint16_t)((timeoutCount)&0xFFFFU);
+}
+
+/*!
+ * @brief Sets the WDOG window value.
+ *
+ * This function sets the WDOG window value.
+ * This function write value into WDOG_WINH and WDOG_WINL registers which are wirte-once.
+ * Make sure the WCT window is still open and these two registers have not been written in this WCT
+ * while this function is called.
+ *
+ * @param base WDOG peripheral base address
+ * @param windowValue WDOG window value.
+ */
+static inline void WDOG_SetWindowValue(WDOG_Type *base, uint32_t windowValue)
+{
+    base->WINH = (uint16_t)((windowValue >> 16U) & 0xFFFFU);
+    base->WINL = (uint16_t)((windowValue)&0xFFFFU);
+}
+
+/*!
+ * @brief Unlocks the WDOG register written.
+ *
+ * This function unlocks the WDOG register written.
+ * Before starting the unlock sequence and following congfiguration, 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.
+ *
+ * @param base WDOG peripheral base address
+ */
+static inline void WDOG_Unlock(WDOG_Type *base)
+{
+    base->UNLOCK = WDOG_FIRST_WORD_OF_UNLOCK;
+    base->UNLOCK = WDOG_SECOND_WORD_OF_UNLOCK;
+}
+
+/*!
+ * @brief Refreshes the WDOG timer.
+ *
+ * This function feeds the WDOG.
+ * This function should be called before WDOG timer is in timeout. Otherwise, a reset is asserted.
+ *
+ * @param base WDOG peripheral base address
+ */
+void WDOG_Refresh(WDOG_Type *base);
+
+/*!
+ * @brief Gets the WDOG reset count.
+ *
+ * This function gets the WDOG reset count value.
+ *
+ * @param base WDOG peripheral base address
+ * @return     WDOG reset count value
+ */
+static inline uint16_t WDOG_GetResetCount(WDOG_Type *base)
+{
+    return base->RSTCNT;
+}
+/*!
+ * @brief Clears the WDOG reset count.
+ *
+ * This function clears the WDOG reset count value.
+ *
+ * @param base WDOG peripheral base address
+ */
+static inline void WDOG_ClearResetCount(WDOG_Type *base)
+{
+    base->RSTCNT |= UINT16_MAX;
+}
+
+/*@}*/
+
+#if defined(__cplusplus)
+}
+#endif /* __cplusplus */
+
+/*! @}*/
+
+#endif /* _FSL_WDOG_H_ */