#ifndef IEEE802154_FRAME
#define IEEE802154_FRAME

#include <stdio.h>
#include <stdint.h>

/* maximum 802.15.4 header length */
#define IEEE_802154_MAX_HDR_LEN         23
/* mininmum */ 
#define IEEE_802154_PAYLOAD_LEN         21

#define IEEE_802154_BEACON_FRAME        0
#define IEEE_802154_DATA_FRAME          1
#define IEEE_802154_ACK_FRAME           2
#define IEEE_802154_MAC_CMD_FRAME       3

#define IEEE_802154_SHORT_ADDR_M        2
#define IEEE_802154_LONG_ADDR_M         3

#define IEEE_802154_PAN_ID              0x1234

typedef struct __attribute__ ((packed)) {
    uint8_t frame_type;
    uint8_t sec_enb;
    uint8_t frame_pend;
    uint8_t ack_req;
    uint8_t panid_comp;
    uint8_t dest_addr_m;
    uint8_t frame_ver;
    uint8_t src_addr_m;      
} ieee802154_fcf_frame_t;

typedef struct __attribute__ ((packed)) {
    ieee802154_fcf_frame_t fcf;
    uint8_t seq_nr;
    uint16_t dest_pan_id;
    uint8_t dest_addr[8];
    uint16_t src_pan_id;
    uint8_t src_addr[8];
    uint8_t *payload;
    uint8_t payload_len;
} ieee802154_frame_t;

uint8_t init_802154_frame(ieee802154_frame_t *frame, uint8_t *buf);
uint8_t get_802154_hdr_len(ieee802154_frame_t *frame);
uint8_t get_802154_pkt_len(void);
uint8_t read_802154_frame(uint8_t *buf, ieee802154_frame_t *frame, uint8_t len);
void print_802154_fcf_frame(ieee802154_frame_t *frame);

#endif /* IEEE802154_FRAME */