/**
 * @file Ems_pin.c
 * @author your name (you@domain.com)
 * @brief 
 * @version 0.1
 * @date 2023-04-05
 * 
 * @copyright Copyright (c) 2023
 * 
 */
#include <string.h>
#include "dev_pin.h"
#include "ems_assert.h"

#ifdef __cplusplus
extern "C" {
#endif

EMS_TAG("EMS_PIN")

static ems_ops_t _obj_ops =
{
    .open = NULL,
    .close = NULL,
    .read = NULL,
    .write = NULL,
};

/**
  * @brief  EMS pin initialization.
  * @param  me      this pointer
  * @param  name    pin's name.
  * @param  mode    pin's mode.
  * @retval None
  */
void ems_pin_register(ems_pin_t * const me,
                        const char *name,
                        const ems_pin_ops_t *ops,
                        void *user_data)
{
    ems_assert(me != NULL);
    ems_assert(name != NULL);
    ems_assert(ops != NULL);

    ems_obj_attr_t attr =
    {
        .user_data = user_data,
        .standlone = true,
        .type = EMS_OBJ_PIN,
    };

    ems_register(&me->super, name, &_obj_ops, &attr);

    me->ops = ops;
    me->ops->init(me);
    me->status = me->ops->get_status(me);
}

/**
 * @brief 
 * 
 * @param me 
 * @param mode 
 */
void ems_pin_set_mode(ems_object_t * const me, uint8_t mode)
{
    ems_assert(me != NULL);

    ems_pin_t *pin = (ems_pin_t *)me;
    if (pin->mode != mode)
    {
        pin->ops->set_mode(pin, mode);
        pin->mode = mode;
    }
}


/**
 * @brief 
 * 
 * @param me 
 * @return true 
 * @return false 
 */
bool ems_pin_get_status(ems_object_t * const me)
{
    ems_assert(me != NULL);
    ems_pin_t *pin = (ems_pin_t *)me;

    pin->status = pin->ops->get_status(pin);

    return pin->status;
}

/**
 * @brief 
 * 
 * @param me 
 * @param status 
 */
void ems_pin_set_status(ems_object_t * const me, bool status)
{
    ems_assert(me != NULL);

    ems_pin_t *pin = (ems_pin_t *)me;
    ems_assert(pin->mode == PIN_MODE_OUTPUT || pin->mode == PIN_MODE_OUTPUT_OD);
    
    if (status != pin->status)
    {
        pin->ops->set_status(pin, status);
        ems_pin_get_status(me);
        ems_assert(pin->status == status);
    }
}

#ifdef __cplusplus
}
#endif

/* ----------------------------- end of file -------------------------------- */