wdog.h

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/* --COPYRIGHT--,BSD
 * Copyright (c) 2015, Texas Instruments Incorporated
 * All rights reserved.
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 * *  Redistributions in binary form must reproduce the above copyright
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 *    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"
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#ifndef _WDOG_H_
#define _WDOG_H_



// **************************************************************************
// the includes

#include "sw/modules/types/src/types.h"

#include "sw/drivers/cpu/src/32b/f28x/f2806x/cpu.h"





#ifdef __cplusplus
extern "C" {
#endif


// **************************************************************************
// the defines


#define WDOG_BASE_ADDR                  (0x00007022)


#define WDOG_SCSR_WDOVERRIDE_BITS         (1 << 0)

#define WDOG_SCSR_WDENINT_BITS            (1 << 1)

#define WDOG_SCSR_WDINTS_BITS             (1 << 2)


#define WDOG_WDCNTR_BITS                (255 << 0)


#define WDOG_WDKEY_BITS                 (255 << 0)


#define WDOG_WDCR_WDPS_BITS             (7 << 0)

#define WDOG_WDCR_WDCHK_BITS            (7 << 3)

#define WDOG_WDCR_WDDIS_BITS            (1 << 6)

#define WDOG_WDCR_WDFLAG_BITS           (1 << 7)


#define WDOG_WDCR_WRITE_ENABLE          (5 << 3)


// **************************************************************************
// the typedefs


typedef enum
{
    WDOG_IntStatus_Active=(0 << 2),   // Denotes an active interrupt status
    WDOG_IntStatus_InActive=(1 << 2)  // Denotes an in-active interrupt status
} WDOG_IntStatus_e;


typedef enum
{
    WDOG_PreScaler_OscClk_by_512_by_1=1,   
    WDOG_PreScaler_OscClk_by_512_by_2,     
    WDOG_PreScaler_OscClk_by_512_by_4,     
    WDOG_PreScaler_OscClk_by_512_by_8,     
    WDOG_PreScaler_OscClk_by_512_by_16,    
    WDOG_PreScaler_OscClk_by_512_by_32,    
    WDOG_PreScaler_OscClk_by_512_by_64     
} WDOG_PreScaler_e;


typedef struct _WDOG_Obj_
{
    volatile uint16_t   SCSR;      
    volatile uint16_t   WDCNTR;    
    volatile uint16_t   rsvd_1;    
    volatile uint16_t   WDKEY;     
    volatile uint16_t   rsvd_2[3]; 
    volatile uint16_t   WDCR;      
} WDOG_Obj;


typedef struct _WDOG_Obj_ *WDOG_Handle;


// **************************************************************************
// the globals


// **************************************************************************
// the function prototypes

extern void WDOG_clearCounter(WDOG_Handle wdogHandle);


extern void WDOG_disable(WDOG_Handle wdogHandle);


extern void WDOG_disableInt(WDOG_Handle wdogHandle);


extern void WDOG_disableOverRide(WDOG_Handle wdogHandle);


extern void WDOG_enable(WDOG_Handle wdogHandle);


extern void WDOG_enableInt(WDOG_Handle wdogHandle);


extern void WDOG_enableOverRide(WDOG_Handle wdogHandle);


extern WDOG_IntStatus_e WDOG_getIntStatus(WDOG_Handle wdogHandle);


extern WDOG_Handle WDOG_init(void *pMemory,const size_t numBytes);


extern void WDOG_setCount(WDOG_Handle wdogHandle,const uint_least8_t count);


extern void WDOG_setPreScaler(WDOG_Handle wdogHandle,const WDOG_PreScaler_e preScaler);


#ifdef __cplusplus
}
#endif // extern "C"

#endif  // end of _WDOG_H_ definition