[164] | 1 | /*
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| 2 | * Copyright (c) 2001, Swedish Institute of Computer Science.
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | * 1. Redistributions of source code must retain the above copyright
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| 9 | * notice, this list of conditions and the following disclaimer.
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer in the
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| 12 | * documentation and/or other materials provided with the distribution.
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| 13 | * 3. Neither the name of the Institute nor the names of its contributors
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| 14 | * may be used to endorse or promote products derived from this software
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| 15 | * without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 27 | * SUCH DAMAGE.
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| 28 | *
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| 29 | * This file is part of the lwIP TCP/IP stack.
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| 30 | *
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| 31 | * Author: Adam Dunkels <adam@sics.se>
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| 32 | *
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| 33 | */
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| 34 | #ifndef __NETIF_SLIPIF_H__
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| 35 | #define __NETIF_SLIPIF_H__
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| 36 |
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| 37 | #include "lwip/opt.h"
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| 38 | #include "lwip/netif.h"
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| 39 |
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| 40 | /** Set this to 1 to start a thread that blocks reading on the serial line
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| 41 | * (using sio_read()).
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| 42 | */
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| 43 | #ifndef SLIP_USE_RX_THREAD
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| 44 | #define SLIP_USE_RX_THREAD !NO_SYS
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| 45 | #endif
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| 46 |
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| 47 | /** Set this to 1 to enable functions to pass in RX bytes from ISR context.
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| 48 | * If enabled, slipif_received_byte[s]() process incoming bytes and put assembled
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| 49 | * packets on a queue, which is fed into lwIP from slipif_poll().
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| 50 | * If disabled, slipif_poll() polls the serila line (using sio_tryread()).
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| 51 | */
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| 52 | #ifndef SLIP_RX_FROM_ISR
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| 53 | #define SLIP_RX_FROM_ISR 0
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| 54 | #endif
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| 55 |
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| 56 | /** Set this to 1 (default for SLIP_RX_FROM_ISR) to queue incoming packets
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| 57 | * received by slipif_received_byte[s]() as long as PBUF_POOL pbufs are available.
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| 58 | * If disabled, packets will be dropped if more than one packet is received.
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| 59 | */
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| 60 | #ifndef SLIP_RX_QUEUE
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| 61 | #define SLIP_RX_QUEUE SLIP_RX_FROM_ISR
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| 62 | #endif
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| 63 |
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| 64 | #ifdef __cplusplus
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| 65 | extern "C" {
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| 66 | #endif
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| 67 |
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| 68 | err_t slipif_init(struct netif * netif);
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| 69 | void slipif_poll(struct netif *netif);
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| 70 | #if SLIP_RX_FROM_ISR
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| 71 | void slipif_process_rxqueue(struct netif *netif);
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| 72 | void slipif_received_byte(struct netif *netif, u8_t data);
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| 73 | void slipif_received_bytes(struct netif *netif, u8_t *data, u8_t len);
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| 74 | #endif /* SLIP_RX_FROM_ISR */
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| 75 |
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| 76 | #ifdef __cplusplus
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| 77 | }
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| 78 | #endif
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| 79 |
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| 80 | #endif
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| 81 |
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