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/**
 *  DATE                AUTHOR      INSTRUCTION
 *  2019-07-26 18:05  zhangqianfu  The first version
 *
 */
#ifndef LITEOS_LAB_IOT_LINK_STIMER_STIMER_H_
#define LITEOS_LAB_IOT_LINK_STIMER_STIMER_H_

#include <stddef.h>
#include <stdint.h>

////////////////DEFINES FOR THE STIMER HEADER///////////////////////////////////
///< defines for the soft timer operation method,you could use it with the stimer_ioctl function
typedef enum
{
    en_stimer_opt_stop = 0,   ///< stop the soft timer
    en_stimer_opt_start,      ///< start the soft timer
    en_stimer_opt_gettime,    ///< get the left time
    en_stimer_opt_recycle,    ///< reset the cycle
    en_stimer_opt_reflag,     ///< reset the flag
}en_stimer_opt_t;

///< defines for the soft timer handle returned by the create function and used for ioctl and delete function
///< the user should never supposed any data structure for the handle, you could only use the api supplied
typedef void* stimer_t;

///< defines for the flag when create the soft timer
#define cn_stimer_flag_once  (1<<0)
#define cn_stimer_flag_start (1<<1)
///< define the soft timer interrupt service function
typedef void  (*fn_stimer_handler)(void *arg);


/**
 * @brief: this function used for initialize the timer component, should be called after the os
 *
 * @return: 0 success while -1 failed
 * */
int32_t stimer_init();

/**
 * @brief: you could use this function for create a soft timer as you wished
 *
 * @param[in]:name, the soft timer name
 * @param[in]:handler, the soft timer handler when the timer is activated
 * @param[in]:arg, the argument will supplied for the handler
 * @param[in]:cycle, the soft timer cycle
 * @param[in]:flag, you could use cn_stimer_flag_once or cn_stimer_flag_start or both
 *
 * @return:soft timer handler, you could use it for ioctl or delete;if failed NULL
 *         will be returned
 *
 * */
stimer_t stimer_create(const char *name,fn_stimer_handler handler, \
                                 void *arg,uint32_t cycle,uint32_t flag);

/**
 * @brief: you could use this function to delete the soft timer you created
 *
 * @param[in]:timer handler,returned by the create function
 *
 * @return:0 success while -1 or others failed
 *
 * */
int32_t       stimer_delete(stimer_t timer);

/**
 * @brief: you could use this function to control the function
 *
 * @param[in]:timer,returned by the create function
 * @param[in]:opt,defined by en_stimer_opt_t, and the arg is corresponding parameters
 * @param[in]:arg, corresponding to the opt
 *
 * @return:0 success while -1 or others failed
 *
 * */
int32_t       stimer_ioctl(stimer_t timer,en_stimer_opt_t opt, void *arg);



#endif /* LITEOS_LAB_IOT_LINK_STIMER_STIMER_H_ */