1 /* 2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 25 * OF SUCH DAMAGE. 26 * 27 * This file is part of the lwIP TCP/IP stack. 28 */ 29 30 /* 31 * This is the interface to the platform specific serial IO module 32 * It needs to be implemented by those platforms which need SLIP or PPP 33 */ 34 35 #ifndef __SIO_H__ 36 #define __SIO_H__ 37 38 #include "lwip/arch.h" 39 40 #ifdef __cplusplus 41 extern "C" { 42 #endif 43 44 /* If you want to define sio_fd_t elsewhere or differently, 45 define this in your cc.h file. */ 46 #ifndef __sio_fd_t_defined 47 typedef void * sio_fd_t; 48 #endif 49 50 /* The following functions can be defined to something else in your cc.h file 51 or be implemented in your custom sio.c file. */ 52 53 #ifndef sio_open 54 sio_fd_t sio_open(u8_t); 55 #endif 56 57 #ifndef sio_send 58 void sio_send(u8_t, sio_fd_t); 59 #endif 60 61 #ifndef sio_recv 62 u8_t sio_recv(sio_fd_t); 63 #endif 64 65 #ifndef sio_read 66 u32_t sio_read(sio_fd_t, u8_t *, u32_t); 67 #endif 68 69 #ifndef sio_write 70 u32_t sio_write(sio_fd_t, u8_t *, u32_t); 71 #endif 72 73 #ifndef sio_read_abort 74 void sio_read_abort(sio_fd_t); 75 #endif 76 77 #ifdef __cplusplus 78 } 79 #endif 80 81 #endif /* __SIO_H__ */ 82