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/*
/ _____) _ | |
( (____ _____ ____ _| |_ _____ ____| |__
\____ \| ___ | (_ _) ___ |/ ___) _ \
_____) ) ____| | | || |_| ____( (___| | | |
(______/|_____)_|_|_| \__)_____)\____)_| |_|
(C)2013 Semtech-Cycleo
Description:
Functions used to handle the Listen Before Talk feature
License: Revised BSD License, see LICENSE.TXT file include in the project
Maintainer: Michael Coracin
*/
#ifndef _LORAGW_LBT_H
#define _LORAGW_LBT_H
/* -------------------------------------------------------------------------- */
/* --- DEPENDANCIES --------------------------------------------------------- */
#include <stdint.h> /* C99 types */
#include <stdbool.h> /* bool type */
#include "loragw_hal.h"
/* -------------------------------------------------------------------------- */
/* --- PUBLIC CONSTANTS ----------------------------------------------------- */
#define LGW_LBT_SUCCESS 0
#define LGW_LBT_ERROR -1
/* -------------------------------------------------------------------------- */
/* --- PUBLIC FUNCTIONS PROTOTYPES ------------------------------------------ */
/**
@brief Set the configuration parameters for LBT feature
@param conf structure containing the configuration parameters
@return LGW_LBT_ERROR id the operation failed, LGW_LBT_SUCCESS else
*/
int lbt_setconf(struct lgw_conf_lbt_s * conf);
/**
@brief Configure the concentrator for LBT feature
@return LGW_LBT_ERROR id the operation failed, LGW_LBT_SUCCESS else
*/
int lbt_setup(void);
/**
@brief Start the LBT FSM
@return LGW_LBT_ERROR id the operation failed, LGW_LBT_SUCCESS else
*/
int lbt_start(void);
/**
@brief Configure the concentrator for LBT feature
@param pkt_data pointer to downlink packet to be trabsmitted
@param tx_allowed pointer to receive permission for transmission
@return LGW_LBT_ERROR id the operation failed, LGW_LBT_SUCCESS else
*/
int lbt_is_channel_free(struct lgw_pkt_tx_s * pkt_data, uint16_t tx_start_delay, bool * tx_allowed);
/**
@brief Check if LBT is enabled
@return true if enabled, false otherwise
*/
bool lbt_is_enabled(void);
#endif
/* --- EOF ------------------------------------------------------------------ */
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