2018-09-21 08:39:36 +02:00
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/**
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* @file
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*
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* SLIP netif API
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*/
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2016-10-06 14:21:30 +03:00
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/*
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* Copyright (c) 2001, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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*/
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#ifndef LWIP_HDR_NETIF_SLIPIF_H
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#define LWIP_HDR_NETIF_SLIPIF_H
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#include "lwip/opt.h"
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#include "lwip/netif.h"
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/** Set this to 1 to start a thread that blocks reading on the serial line
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* (using sio_read()).
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*/
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#ifndef SLIP_USE_RX_THREAD
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#define SLIP_USE_RX_THREAD !NO_SYS
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#endif
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/** Set this to 1 to enable functions to pass in RX bytes from ISR context.
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* If enabled, slipif_received_byte[s]() process incoming bytes and put assembled
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* packets on a queue, which is fed into lwIP from slipif_poll().
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* If disabled, slipif_poll() polls the serial line (using sio_tryread()).
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*/
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#ifndef SLIP_RX_FROM_ISR
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#define SLIP_RX_FROM_ISR 0
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#endif
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/** Set this to 1 (default for SLIP_RX_FROM_ISR) to queue incoming packets
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* received by slipif_received_byte[s]() as long as PBUF_POOL pbufs are available.
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* If disabled, packets will be dropped if more than one packet is received.
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*/
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#ifndef SLIP_RX_QUEUE
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#define SLIP_RX_QUEUE SLIP_RX_FROM_ISR
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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err_t slipif_init(struct netif * netif);
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void slipif_poll(struct netif *netif);
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#if SLIP_RX_FROM_ISR
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void slipif_process_rxqueue(struct netif *netif);
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void slipif_received_byte(struct netif *netif, u8_t data);
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void slipif_received_bytes(struct netif *netif, u8_t *data, u8_t len);
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#endif /* SLIP_RX_FROM_ISR */
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#ifdef __cplusplus
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}
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#endif
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#endif /* LWIP_HDR_NETIF_SLIPIF_H */
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