slipif.c File Reference

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

Include dependency graph for slipif.c:

Go to the source code of this file.

Classes
struct	slipif_priv

Macros
#define	SLIP_END   0xC0 /* 0300: start and end of every packet */
#define	SLIP_ESC   0xDB /* 0333: escape start (one byte escaped data follows) */
#define	SLIP_ESC_END   0xDC /* 0334: following escape: original byte is 0xC0 (END) */
#define	SLIP_ESC_ESC   0xDD /* 0335: following escape: original byte is 0xDB (ESC) */
#define	SLIP_MAX_SIZE   1500
#define	SLIP_SIO_SPEED(sio_fd)   0

Enumerations
enum	slipif_recv_state { SLIP_RECV_NORMAL , SLIP_RECV_ESCAPE }

Functions
err_t	slipif_init (struct netif *netif)
void	slipif_poll (struct netif *netif)

Detailed Description

SLIP Interface

Definition in file slipif.c.

Macro Definition Documentation

SLIP_END

#define SLIP_END   0xC0 /* 0300: start and end of every packet */

Definition at line 91 of file slipif.c.

SLIP_ESC

#define SLIP_ESC   0xDB /* 0333: escape start (one byte escaped data follows) */

Definition at line 92 of file slipif.c.

SLIP_ESC_END

#define SLIP_ESC_END   0xDC /* 0334: following escape: original byte is 0xC0 (END) */

Definition at line 93 of file slipif.c.

SLIP_ESC_ESC

#define SLIP_ESC_ESC   0xDD /* 0335: following escape: original byte is 0xDB (ESC) */

Definition at line 94 of file slipif.c.

SLIP_MAX_SIZE

#define SLIP_MAX_SIZE   1500

Maximum packet size that is received by this netif

Definition at line 98 of file slipif.c.

SLIP_SIO_SPEED

#define SLIP_SIO_SPEED

(

sio_fd

)

0

Define this to the interface speed for SNMP (sio_fd is the sio_fd_t returned by sio_open). The default value of zero means 'unknown'.

Definition at line 106 of file slipif.c.

Enumeration Type Documentation

slipif_recv_state

enum slipif_recv_state

Definition at line 109 of file slipif.c.

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.

Parameters

netif

the lwip network interface structure for this slipif

Returns

ERR_OK if serial line could be opened, ERR_MEM if no memory could be allocated, ERR_IF is serial line couldn't be opened

Note

netif->num must contain the number of the serial port to open (0 by default). If netif->state is != NULL, it is interpreted as an u8_t pointer pointing to the serial port number instead of netif->num.

Definition at line 380 of file slipif.c.

References ERR_IF, ERR_MEM, ERR_OK, LWIP_DEBUGF, mem_free(), mem_malloc(), netif::mtu, netif::name, netif::num, SLIP_DEBUG, SLIP_MAX_SIZE, SLIP_SIO_SPEED, SLIPIF_THREAD_NAME, SLIPIF_THREAD_PRIO, SLIPIF_THREAD_STACKSIZE, netif::state, and sys_thread_new().

slipif_poll()

void slipif_poll

(

struct netif *

netif

)

Polls the serial device and feeds the IP layer with incoming packets.

Parameters

netif

The lwip network interface structure for this slipif

Definition at line 446 of file slipif.c.

References netif::state.