slipif.c File Reference

#include "netif/slipif.h"
#include "lwip/opt.h"
#include "lwip/def.h"
#include "lwip/pbuf.h"
#include "lwip/sys.h"
#include "lwip/stats.h"
#include "lwip/sio.h"

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Macros
#define	SLIP_END   0300
#define	SLIP_ESC   0333
#define	SLIP_ESC_END   0334
#define	SLIP_ESC_ESC   0335
#define	MAX_SIZE   1500

Functions
err_t	slipif_output (struct netif *netif, struct pbuf *p, struct ip_addr *ipaddr)
static struct pbuf *	slipif_input (struct netif *netif)
static void	slipif_loop (void *nf)
err_t	slipif_init (struct netif *netif)

Macro Definition Documentation

MAX_SIZE

#define MAX_SIZE   1500

SLIP_END

#define SLIP_END   0300

SLIP_ESC

#define SLIP_ESC   0333

SLIP_ESC_END

#define SLIP_ESC_END   0334

SLIP_ESC_ESC

#define SLIP_ESC_ESC   0335

Function Documentation

slipif_init()

err_t slipif_init

(

struct netif *

netif

)

SLIP netif initialization

Call the arch specific sio_open and remember the opened device in the state field of the netif.

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slipif_input()

static struct pbuf* slipif_input ( struct netif *  netif )

static

Handle the incoming SLIP stream character by character

Poll the serial layer by calling sio_recv()

Returns

The IP packet when SLIP_END is received

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slipif_loop()

static void slipif_loop ( void *  nf )

static

The SLIP input thread

Feed the IP layer with incoming packets

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slipif_output()

err_t slipif_output	(	struct netif *	netif,
		struct pbuf *	p,
		struct ip_addr *	ipaddr
	)

Send a pbuf doing the necessary SLIP encapsulation

Uses the serial layer's sio_send()

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