llcp.h File Reference

#include <stdint.h>
#include <string.h>
#include <stdbool.h>

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Macros
#define	LLCP_COMM_HEXADECIMAL   0
#define	LLCP_APPEND_ENDL   0
#define	LLCP_DEBUG_PRINT   0
#define	MAX_PAYLOAD_LEN   255
#define	LLCP_CHECK_CHECKSUM   0
#define	INIT_LEN   1
#define	PAYLOAD_SIZE_LEN   1
#define	CHECKSUM_LEN   1
#define	ENDL_LEN   0
#define	LLCP_RX_TX_BUFFER_SIZE   (INIT_LEN + PAYLOAD_SIZE_LEN + MAX_PAYLOAD_LEN + CHECKSUM_LEN + ENDL_LEN)

Enumerations
enum	LLCP_ReceiverState_t {   WAITING_FOR_MESSSAGE = 0, EXPECTING_SIZE = 1, EXPECTING_PAYLOAD = 2, EXPECTING_CHECKSUM = 3,   WAITING_FOR_MESSSAGE = 0, EXPECTING_SIZE = 1, EXPECTING_PAYLOAD = 2, EXPECTING_CHECKSUM = 3,   WAITING_FOR_MESSSAGE = 0, EXPECTING_SIZE = 1, EXPECTING_PAYLOAD = 2, EXPECTING_CHECKSUM = 3,   WAITING_FOR_MESSSAGE = 0, EXPECTING_SIZE = 1, EXPECTING_PAYLOAD = 2, EXPECTING_CHECKSUM = 3,   WAITING_FOR_MESSSAGE = 0, EXPECTING_SIZE = 1, EXPECTING_PAYLOAD = 2, EXPECTING_CHECKSUM = 3,   WAITING_FOR_MESSSAGE = 0, EXPECTING_SIZE = 1, EXPECTING_PAYLOAD = 2, EXPECTING_CHECKSUM = 3,   WAITING_FOR_MESSSAGE = 0, EXPECTING_SIZE = 1, EXPECTING_PAYLOAD = 2, EXPECTING_CHECKSUM = 3,   WAITING_FOR_MESSSAGE = 0, EXPECTING_SIZE = 1, EXPECTING_PAYLOAD = 2, EXPECTING_CHECKSUM = 3 }
	state machine states for the LLCP receiver (binary transfer) More...

Functions
struct	__attribute__ ((packed))
uint8_t	llcp_hex2bin (const uint8_t *ptr)
void	llcp_bin2hex (const uint8_t byte, uint8_t *buffer)
	convert a single byte to hexadecimal More...
void	llcp_initialize (LLCP_Receiver_t *receiver)
bool	llcp_processChar (const uint8_t char_in, LLCP_Receiver_t *receiver, LLCP_Message_t **message, bool *checksum_matched)
uint16_t	llcp_prepareMessage (uint8_t *what, uint8_t len, uint8_t *buffer)

Variables
	LLCP_Receiver_t
	LLCP_Message_t

Macro Definition Documentation

CHECKSUM_LEN

#define CHECKSUM_LEN   1

ENDL_LEN

#define ENDL_LEN   0

INIT_LEN

#define INIT_LEN   1

LLCP_APPEND_ENDL

#define LLCP_APPEND_ENDL   0

LLCP_CHECK_CHECKSUM

#define LLCP_CHECK_CHECKSUM   0

LLCP_COMM_HEXADECIMAL

#define LLCP_COMM_HEXADECIMAL   0

LLCP_DEBUG_PRINT

#define LLCP_DEBUG_PRINT   0

LLCP_RX_TX_BUFFER_SIZE

#define LLCP_RX_TX_BUFFER_SIZE   (INIT_LEN + PAYLOAD_SIZE_LEN + MAX_PAYLOAD_LEN + CHECKSUM_LEN + ENDL_LEN)

MAX_PAYLOAD_LEN

#define MAX_PAYLOAD_LEN   255

PAYLOAD_SIZE_LEN

#define PAYLOAD_SIZE_LEN   1

Enumeration Type Documentation

LLCP_ReceiverState_t

enum LLCP_ReceiverState_t

state machine states for the LLCP receiver (binary transfer)

Enumerator
WAITING_FOR_MESSSAGE
EXPECTING_SIZE
EXPECTING_PAYLOAD
EXPECTING_CHECKSUM
WAITING_FOR_MESSSAGE
EXPECTING_SIZE
EXPECTING_PAYLOAD
EXPECTING_CHECKSUM
WAITING_FOR_MESSSAGE
EXPECTING_SIZE
EXPECTING_PAYLOAD
EXPECTING_CHECKSUM
WAITING_FOR_MESSSAGE
EXPECTING_SIZE
EXPECTING_PAYLOAD
EXPECTING_CHECKSUM
WAITING_FOR_MESSSAGE
EXPECTING_SIZE
EXPECTING_PAYLOAD
EXPECTING_CHECKSUM
WAITING_FOR_MESSSAGE
EXPECTING_SIZE
EXPECTING_PAYLOAD
EXPECTING_CHECKSUM
WAITING_FOR_MESSSAGE
EXPECTING_SIZE
EXPECTING_PAYLOAD
EXPECTING_CHECKSUM
WAITING_FOR_MESSSAGE
EXPECTING_SIZE
EXPECTING_PAYLOAD
EXPECTING_CHECKSUM

Function Documentation

__attribute__()

struct __attribute__

(

(packed)

)

llcp_bin2hex()

void llcp_bin2hex	(	const uint8_t	x,
		uint8_t *	buffer
	)

convert a single byte to hexadecimal

Parameters

x	the byte to convert
buffer	pointer to a 2-char buffer for the result

llcp_hex2bin()

uint8_t llcp_hex2bin

(

const uint8_t *

ptr

)

llcp_initialize()

void llcp_initialize

(

LLCP_Receiver_t *

receiver

)

llcp_prepareMessage()

uint16_t llcp_prepareMessage	(	uint8_t *	what,
		uint8_t	len,
		uint8_t *	buffer
	)

llcp_processChar()

bool llcp_processChar	(	const uint8_t	char_in,
		LLCP_Receiver_t *	receiver,
		LLCP_Message_t **	message,
		bool *	checksum_matched
	)

Variable Documentation

LLCP_Message_t

LLCP_Message_t

LLCP_Receiver_t

LLCP_Receiver_t