#include "lwip/opt.h"
#include "lwip/netif.h"

Macros
#define	SLIP_USE_RX_THREAD !NO_SYS

#define	SLIP_RX_FROM_ISR 0

#define	SLIP_RX_QUEUE SLIP_RX_FROM_ISR

Functions
err_t	slipif_init (struct netif *netif)

void	slipif_poll (struct netif *netif)

Detailed Description

SLIP netif API

Macro Definition Documentation

◆ SLIP_RX_FROM_ISR

#define SLIP_RX_FROM_ISR 0

Set this to 1 to enable functions to pass in RX bytes from ISR context. If enabled, slipif_received_byte[s]() process incoming bytes and put assembled packets on a queue, which is fed into lwIP from slipif_poll(). If disabled, slipif_poll() polls the serial line (using sio_tryread()).

◆ SLIP_RX_QUEUE

#define SLIP_RX_QUEUE SLIP_RX_FROM_ISR

Set this to 1 (default for SLIP_RX_FROM_ISR) to queue incoming packets received by slipif_received_byte[s]() as long as PBUF_POOL pbufs are available. If disabled, packets will be dropped if more than one packet is received.

◆ SLIP_USE_RX_THREAD

#define SLIP_USE_RX_THREAD !NO_SYS

Set this to 1 to start a thread that blocks reading on the serial line (using sio_read()).

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.

◆ slipif_poll()

void slipif_poll ( struct netif * netif )

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