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#ifndef PHY_PLME_ED_H_INCLUDED
#define PHY_PLME_ED_H_INCLUDED

#include <stdint.h>
#include "phy_common.h"

/** @file
 * This file contains declarations of Energy Detection PHY routines and necessary types.
 *
 * @defgroup phy_ed PHY ED API
 * @ingroup phy_15_4
 * @{
 * @brief Module to declare PHY Energy Detection API
 * @details The PHY ED module declares Energy Detection PHY routines and necessary types according to
 * the PHY specification. More specifically, PHY ED request plme_ed_req(), PHY ED confirm 
 * plme_ed_conf() primitives are declared.
 */

/**@brief Describes the current state of the ED algorithm. */
typedef enum
{
    PHY_PLME_ED_STATE_IDLE, /**< Algorithm is idle. */
    PHY_PLME_ED_STATE_BUSY  /**< Currently performing ED. */
} phy_plme_ed_state_t;

/**@brief This structure holds static data of this module. */
typedef struct
{
    phy_plme_ed_state_t  state;
} phy_plme_ed_mem_t;

/**@brief   PLME-ED.confirm parameters.
 *
 * @details The PLME-ED.confirm primitive is generated by the PLME and issued
 *          to its next higher layer in response to an PLME-ED.request primitive.
 *
 *          In accordance with IEEE Std 802.15.4-2006, section 6.2.2.4.1.
 */
typedef struct
{
    /** One of PHY_SUCCESS, PHY_TRX_OFF or PHY_TX_ON. */
    phy_enum_t status;

    /** Energy level for the current channel, if status is SUCCESS. */
    uint8_t    energy_level;
} plme_ed_conf_t;


/**@brief   PLME-ED.request.
 *
 * @details Request ED measurement for the current channel.
 *          In accordance with IEEE Std 802.15.4-2006, section 6.2.2.3.
 */
void plme_ed_req(void);


/**@brief   The PLME-ED.confirm callback function, implemented by the next higher layer.
 *
 * @details The PLME-ED.confirm primitive is generated by the PLME and issued
 *          to its next higher layer in response to an PLME-ED.request primitive.
 *          In accordance with IEEE Std 802.15.4-2006, section 6.2.2.4.
 *
 * @param[out] conf Pointer to PLME-ED.confirm parameters
 */
void plme_ed_conf(plme_ed_conf_t * conf);

/** @} */

#endif // PHY_PLME_ED_H_INCLUDED
