/*!
 * \file      LoRaMac.h
 *
 * \brief     LoRa MAC layer implementation
 *
 * \copyright Revised BSD License, see section \ref LICENSE.
 *
 * \code
 *                ______                              _
 *               / _____)             _              | |
 *              ( (____  _____ ____ _| |_ _____  ____| |__
 *               \____ \| ___ |    (_   _) ___ |/ ___)  _ \
 *               _____) ) ____| | | || |_| ____( (___| | | |
 *              (______/|_____)_|_|_| \__)_____)\____)_| |_|
 *              (C)2013 Semtech
 *
 *               ___ _____ _   ___ _  _____ ___  ___  ___ ___
 *              / __|_   _/_\ / __| |/ / __/ _ \| _ \/ __| __|
 *              \__ \ | |/ _ \ (__| ' <| _| (_) |   / (__| _|
 *              |___/ |_/_/ \_\___|_|\_\_| \___/|_|_\\___|___|
 *              embedded.connectivity.solutions===============
 *
 * \endcode
 *
 * \author    Miguel Luis ( Semtech )
 *
 * \author    Gregory Cristian ( Semtech )
 *
 * \author    Daniel Jäckle ( STACKFORCE )
 *
 * \defgroup  LORAMAC LoRa MAC layer implementation
 *            This module specifies the API implementation of the LoRaMAC layer.
 *            This is a placeholder for a detailed description of the LoRaMac
 *            layer and the supported features.
 * \{
 *
 * \example   classA/LoRaMote/main.c
 *            LoRaWAN class A application example for the LoRaMote.
 *
 * \example   classB/LoRaMote/main.c
 *            LoRaWAN class B application example for the LoRaMote.
 *
 * \example   classC/LoRaMote/main.c
 *            LoRaWAN class C application example for the LoRaMote.
 */
#ifndef __LORAMAC_H__
#define __LORAMAC_H__

// Includes board dependent definitions such as channels frequencies
//#include "LoRaMac-board.h"


/********************************
		Lora物理层帧结构定义
********************************/
#include <stdio.h>  
#include <stdlib.h>  
//#include <malloc.h>  
#include <stdint.h>
#include <stdbool.h>


/*!
 * LoRaMAC Status
 */
typedef enum eLoRaMacStatus
{
    /*!
     * Service started successfully
     */
    LORAMAC_STATUS_OK,
    /*!
     * Service not started - LoRaMAC is busy
     */
    LORAMAC_STATUS_BUSY,
    /*!
     * Service unknown
     */
    LORAMAC_STATUS_SERVICE_UNKNOWN,
    /*!
     * Service not started - invalid parameter
     */
    LORAMAC_STATUS_PARAMETER_INVALID,
    /*!
     * Service not started - invalid frequency
     */
    LORAMAC_STATUS_FREQUENCY_INVALID,
    /*!
     * Service not started - invalid datarate
     */
    LORAMAC_STATUS_DATARATE_INVALID,
    /*!
     * Service not started - invalid frequency and datarate
     */
    LORAMAC_STATUS_FREQ_AND_DR_INVALID,
    /*!
     * Service not started - the device is not in a LoRaWAN
     */
    LORAMAC_STATUS_NO_NETWORK_JOINED,
    /*!
     * Service not started - playload lenght error
     */
    LORAMAC_STATUS_LENGTH_ERROR,
    /*!
     * Service not started - playload lenght error
     */
    LORAMAC_STATUS_MAC_CMD_LENGTH_ERROR,
    /*!
     * Service not started - the device is switched off
     */
    LORAMAC_STATUS_DEVICE_OFF,
}LoRaMacStatus_t;



/*!
 * LoRaMAC frame types
 *
 * LoRaWAN Specification V1.0, chapter 4.2.1, table 1
 */
typedef enum eLoRaMacFrameType
{
    /*!
     * LoRaMAC join request frame
     */
    FRAME_TYPE_JOIN_REQ              = 0x00,
    /*!
     * LoRaMAC join accept frame
     */
    FRAME_TYPE_JOIN_ACCEPT           = 0x01,
    /*!
     * LoRaMAC unconfirmed up-link frame
     */
    FRAME_TYPE_DATA_UNCONFIRMED_UP   = 0x02,
    /*!
     * LoRaMAC unconfirmed down-link frame
     */
    FRAME_TYPE_DATA_UNCONFIRMED_DOWN = 0x03,
    /*!
     * LoRaMAC confirmed up-link frame
     */
    FRAME_TYPE_DATA_CONFIRMED_UP     = 0x04,
    /*!
     * LoRaMAC confirmed down-link frame
     */
    FRAME_TYPE_DATA_CONFIRMED_DOWN   = 0x05,
    /*!
     * LoRaMAC RFU frame
     */
    FRAME_TYPE_RFU                   = 0x06,
    /*!
     * LoRaMAC proprietary frame
     */
    FRAME_TYPE_PROPRIETARY           = 0x07,
}LoRaMacFrameType_t;


#define UP_LINK                                     0
/*!
 * Frame direction definition for down-link communications
 */
#define DOWN_LINK                                   1

/*!
 * Sets the length of the LoRaMAC footer field.
 * Mainly indicates the MIC field length
 */
#define LORAMAC_MFR_LEN                             4

/*!
 * LoRaMAC header field definition (MHDR field)
 *
 * LoRaWAN Specification V1.0, chapter 4.2
 */
typedef union uLoRaMacHeader
{
    /*!
     * Byte-access to the bits
     */
    uint8_t Value;
    /*!
     * Structure containing single access to header bits
     */
    struct sHdrBits
    {
        /*!
         * Major version
         */
        uint8_t Major           : 2;
        /*!
         * RFU
         */
        uint8_t RFU             : 3;
        /*!
         * Message type
         */
        uint8_t MType           : 3;
    }Bits;
}LoRaMacHeader_t;


/*!
 * LoRaMAC frame control field definition (FCtrl)
 *
 * LoRaWAN Specification V1.0, chapter 4.3.1
 */
typedef union uLoRaMacFrameCtrl
{
    /*!
     * Byte-access to the bits
     */
    uint8_t Value;
    struct sCtrlBits
    {
        /*!
         * Frame options length
         */
        uint8_t FOptsLen        : 4;
        /*!
         * Frame pending bit
         */
        uint8_t FPending        : 1;
        /*!
         * Message acknowledge bit
         */
        uint8_t Ack             : 1;
        /*!
         * ADR acknowledgment request bit
         */
        uint8_t AdrAckReq       : 1;
        /*!
         * ADR control in frame header
         */
        uint8_t Adr             : 1;
    }Bits;
}LoRaMacFrameCtrl_t;

/*!
 * Device IEEE EUI
 */
//static uint8_t *LoRaMacDevEui;

typedef struct
{
	uint8_t ADR;								//实际只用1bit
	uint8_t ADRACKReq;					//实际只用1bit
	uint8_t ACK;								//实际只用1bit
	uint8_t FOptsLen;						//实际只用4bit
}FCtrl_t;


typedef struct
{
	uint32_t DevAddr;
	LoRaMacFrameCtrl_t FCtrl;
	uint16_t FCnt;
	uint8_t Fopts;						//变长，约定1字节
}FHDR_t;

typedef struct
{
	
	uint8_t AppEUI[8];				//uint64_t AppEUI;
	uint8_t DevEUI[8];				//uint64_t DevEUI;
	uint16_t DevNonce;
	uint32_t AppNonce;				//实际只用3字节
	uint32_t NetID;						//实际只用3字节
	uint32_t DevAddr;
	uint8_t DLSettings;
	uint8_t RxDelay;
	uint8_t CFList[16];
	FHDR_t FHDR;
	uint8_t Fport;						//变长，约定1字节
	uint8_t FRMPayload[128];
}MACPayload_t;

typedef struct
{
	LoRaMacHeader_t MHDR;
	MACPayload_t MACPayload;
	uint32_t MIC;
}PHYPayload_t;

typedef struct sPHYPayload
{
	PHYPayload_t *PHYPayload;
	struct sPHYPayload *Next;
}sPHYPayload_t;



void sendJoinRequest(void);

void sendUnconfirmUp(void);

#endif // __LORAMAC_H__