Contiki 2.6
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00001 /* 00002 * Copyright (c) 2006, Swedish Institute of Computer Science 00003 * Copyright (c) 2010, Mariano Alvira <mar@devl.org> and other contributors 00004 * to the MC1322x project (http://mc1322x.devl.org) and Contiki. 00005 * 00006 * All rights reserved. 00007 * 00008 * Redistribution and use in source and binary forms, with or without 00009 * modification, are permitted provided that the following conditions 00010 * are met: 00011 * 1. Redistributions of source code must retain the above copyright 00012 * notice, this list of conditions and the following disclaimer. 00013 * 2. Redistributions in binary form must reproduce the above copyright 00014 * notice, this list of conditions and the following disclaimer in the 00015 * documentation and/or other materials provided with the distribution. 00016 * 3. Neither the name of the Institute nor the names of its contributors 00017 * may be used to endorse or promote products derived from this software 00018 * without specific prior written permission. 00019 * 00020 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 00021 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00022 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00023 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 00024 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00025 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00026 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00027 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00028 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00029 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00030 * SUCH DAMAGE. 00031 * 00032 * This file is part of the Contiki OS. 00033 * 00034 * 00035 */ 00036 00037 /* 00038 * Machine dependent mc1322x SLIP routines for UART1. 00039 */ 00040 00041 #include "contiki.h" 00042 #include "dev/slip.h" 00043 00044 #include "mc1322x.h" 00045 00046 /*---------------------------------------------------------------------------*/ 00047 void 00048 slip_arch_writeb(unsigned char c) 00049 { 00050 uart1_putc(c); 00051 } 00052 /*---------------------------------------------------------------------------*/ 00053 /* 00054 * The serial line is used to transfer IP packets using slip. To make 00055 * it possible to send debug output over the same line we send debug 00056 * output as slip frames (i.e delimeted by SLIP_END). 00057 * 00058 */ 00059 /*---------------------------------------------------------------------------*/ 00060 #if WITH_UIP 00061 int 00062 putchar(int c) 00063 { 00064 #define SLIP_END 0300 00065 static char debug_frame = 0; 00066 00067 if (!debug_frame) { /* Start of debug output */ 00068 slip_arch_writeb(SLIP_END); 00069 slip_arch_writeb('\r'); /* Type debug line == '\r' */ 00070 debug_frame = 1; 00071 } 00072 00073 slip_arch_writeb((char)c); 00074 00075 /* 00076 * Line buffered output, a newline marks the end of debug output and 00077 * implicitly flushes debug output. 00078 */ 00079 if (c == '\n') { 00080 slip_arch_writeb(SLIP_END); 00081 debug_frame = 0; 00082 } 00083 00084 return c; 00085 } 00086 #endif 00087 /*---------------------------------------------------------------------------*/ 00088 /** 00089 * Initalize the RS232 port and the SLIP driver. 00090 * 00091 */ 00092 void 00093 slip_arch_init(unsigned long ubr) 00094 { 00095 uart1_set_input(slip_input_byte); 00096 } 00097 /*---------------------------------------------------------------------------*/