rt-thread/bsp/hc32f460/Libraries/HC32F460_StdPeriph_Driver/inc/hc32f460_wdt.h

/*******************************************************************************
 * Copyright (C) 2020, Huada Semiconductor Co., Ltd. All rights reserved.
 *
 * This software component is licensed by HDSC under BSD 3-Clause license
 * (the "License"); You may not use this file except in compliance with the
 * License. You may obtain a copy of the License at:
 *                    opensource.org/licenses/BSD-3-Clause
 */
/******************************************************************************/
/** \file hc32f460_wdt.h
 **
 ** A detailed description is available at
 ** @link WdtGroup Watchdog Counter description @endlink
 **
 **   - 2018-10-18  CDT  First version for Device Driver Library of WDT.
 **
 ******************************************************************************/
#ifndef __HC32F460_WDT_H__
#define __HC32F460_WDT_H__

/*******************************************************************************
 * Include files
 ******************************************************************************/
#include "hc32_common.h"
#include "ddl_config.h"

#if (DDL_WDT_ENABLE == DDL_ON)

/* C binding of definitions if building with C++ compiler */
#ifdef __cplusplus
extern "C"
{
#endif

/**
 *******************************************************************************
 ** \defgroup WdtGroup WatchDog Counter(WDT)
 **
 ******************************************************************************/
//@{

/*******************************************************************************
 * Global type definitions ('typedef')
 ******************************************************************************/
/**
 *******************************************************************************
 ** \brief WDT count cycle enumeration
 ******************************************************************************/
typedef enum en_wdt_count_cycle
{
    WdtCountCycle256   = 0u,                    ///< 256 cycle
    WdtCountCycle4096  = 1u,                    ///< 4096 cycle
    WdtCountCycle16384 = 2u,                    ///< 16384 cycle
    WdtCountCycle65536 = 3u,                    ///< 65536 cycle
} en_wdt_count_cycle_t;

/**
 *******************************************************************************
 ** \brief WDT count clock division enumeration
 ******************************************************************************/
typedef enum en_wdt_clk_div
{
    WdtPclk3Div4    = 2u,                       ///< PCLK3/4
    WdtPclk3Div64   = 6u,                       ///< PCLK3/64
    WdtPclk3Div128  = 7u,                       ///< PCLK3/128
    WdtPclk3Div256  = 8u,                       ///< PCLK3/256
    WdtPclk3Div512  = 9u,                       ///< PCLK3/512
    WdtPclk3Div1024 = 10u,                      ///< PCLK3/1024
    WdtPclk3Div2048 = 11u,                      ///< PCLK3/2048
    WdtPclk3Div8192 = 13u,                      ///< PCLK3/8192
} en_wdt_clk_div_t;

/**
 *******************************************************************************
 ** \brief WDT allow refresh percent range enumeration
 ******************************************************************************/
typedef enum en_wdt_refresh_range
{
    WdtRefresh100Pct                 = 0u,      ///< 100%
    WdtRefresh0To25Pct               = 1u,      ///< 0%~25%
    WdtRefresh25To50Pct              = 2u,      ///< 25%~50%
    WdtRefresh0To50Pct               = 3u,      ///< 0%~50%
    WdtRefresh50To75Pct              = 4u,      ///< 50%~75%
    WdtRefresh0To25PctAnd50To75Pct   = 5u,      ///< 0%~25% & 50%~75%
    WdtRefresh25To75Pct              = 6u,      ///< 25%~75%
    WdtRefresh0To75Pct               = 7u,      ///< 0%~75%
    WdtRefresh75To100Pct             = 8u,      ///< 75%~100%
    WdtRefresh0To25PctAnd75To100Pct  = 9u,      ///< 0%~25% & 75%~100%
    WdtRefresh25To50PctAnd75To100Pct = 10u,     ///< 25%~50% & 75%~100%
    WdtRefresh0To50PctAnd75To100Pct  = 11u,     ///< 0%~50% & 75%~100%
    WdtRefresh50To100Pct             = 12u,     ///< 50%~100%
    WdtRefresh0To25PctAnd50To100Pct  = 13u,     ///< 0%~25% & 50%~100%
    WdtRefresh25To100Pct             = 14u,     ///< 25%~100%
    WdtRefresh0To100Pct              = 15u,     ///< 0%~100%
} en_wdt_refresh_range_t;

/**
 *******************************************************************************
 ** \brief WDT refresh error or count underflow trigger event type enumeration
 ******************************************************************************/
typedef enum en_wdt_event_request_type
{
    WdtTriggerInterruptRequest = 0u,            ///< Interrupt request
    WdtTriggerResetRequest     = 1u,            ///< Reset request
} en_wdt_event_request_type_t;

/**
 *******************************************************************************
 ** \brief WDT flag type enumeration
 ******************************************************************************/
typedef enum en_wdt_flag_type
{
    WdtFlagCountUnderflow = 0u,                 ///< Count underflow flag
    WdtFlagRefreshError   = 1u,                 ///< Refresh error flag
} en_wdt_flag_type_t;

/**
 *******************************************************************************
 ** \brief WDT init structure definition
 ******************************************************************************/
typedef struct stc_wdt_init
{
    en_wdt_count_cycle_t        enCountCycle;           ///< Count cycle
    en_wdt_clk_div_t            enClkDiv;               ///< Count clock division
    en_wdt_refresh_range_t      enRefreshRange;         ///< Allow refresh percent range
    en_functional_state_t       enSleepModeCountEn;     ///< Enable/disable count in the sleep mode
    en_wdt_event_request_type_t enRequestType;          ///< Refresh error or count underflow trigger event type
} stc_wdt_init_t;

/*******************************************************************************
 * Global pre-processor symbols/macros ('#define')
 ******************************************************************************/

/*******************************************************************************
 * Global variable definitions ('extern')
 ******************************************************************************/

/*******************************************************************************
  Global function prototypes (definition in C source)
 ******************************************************************************/
/* Base functions */
en_result_t WDT_Init(const stc_wdt_init_t *pstcWdtInit);
en_result_t WDT_RefreshCounter(void);
uint16_t WDT_GetCountValue(void);

/* Flags functions */
en_flag_status_t WDT_GetFlag(en_wdt_flag_type_t enFlag);
en_result_t WDT_ClearFlag(en_wdt_flag_type_t enFlag);

//@} // WdtGroup

#ifdef __cplusplus
}
#endif

#endif /* DDL_WDT_ENABLE */

#endif /* __HC32F460_WDT_H__ */

/*******************************************************************************
 * EOF (not truncated)
 ******************************************************************************/