87 lines
3.1 KiB
C
87 lines
3.1 KiB
C
|
/**
|
||
|
|
* @file
|
||
|
|
*
|
||
|
|
* SLIP netif API
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2001, Swedish Institute of Computer Science.
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
||
|
|
* may be used to endorse or promote products derived from this software
|
||
|
|
* without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
|
* SUCH DAMAGE.
|
||
|
|
*
|
||
|
|
* This file is part of the lwIP TCP/IP stack.
|
||
|
|
*
|
||
|
|
* Author: Adam Dunkels <adam@sics.se>
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
#ifndef LWIP_HDR_NETIF_SLIPIF_H
|
||
|
|
#define LWIP_HDR_NETIF_SLIPIF_H
|
||
|
|
|
||
|
|
#include "lwip/opt.h"
|
||
|
|
#include "lwip/netif.h"
|
||
|
|
|
||
|
|
/** Set this to 1 to start a thread that blocks reading on the serial line
|
||
|
|
* (using sio_read()).
|
||
|
|
*/
|
||
|
|
#ifndef SLIP_USE_RX_THREAD
|
||
|
|
#define SLIP_USE_RX_THREAD !NO_SYS
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/** 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()).
|
||
|
|
*/
|
||
|
|
#ifndef SLIP_RX_FROM_ISR
|
||
|
|
#define SLIP_RX_FROM_ISR 0
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/** 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.
|
||
|
|
*/
|
||
|
|
#ifndef SLIP_RX_QUEUE
|
||
|
|
#define SLIP_RX_QUEUE SLIP_RX_FROM_ISR
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
err_t slipif_init(struct netif * netif);
|
||
|
|
void slipif_poll(struct netif *netif);
|
||
|
|
#if SLIP_RX_FROM_ISR
|
||
|
|
void slipif_process_rxqueue(struct netif *netif);
|
||
|
|
void slipif_received_byte(struct netif *netif, u8_t data);
|
||
|
|
void slipif_received_bytes(struct netif *netif, u8_t *data, u8_t len);
|
||
|
|
#endif /* SLIP_RX_FROM_ISR */
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* LWIP_HDR_NETIF_SLIPIF_H */
|