Contiki 2.6
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00001 /* 00002 * Copyright (c) 2006, Swedish Institute of Computer Science 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions 00007 * are met: 00008 * 1. Redistributions of source code must retain the above copyright 00009 * notice, this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * 3. Neither the name of the Institute nor the names of its contributors 00014 * may be used to endorse or promote products derived from this software 00015 * without specific prior written permission. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 00018 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00019 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00020 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 00021 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00022 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00023 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00024 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00025 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00026 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00027 * SUCH DAMAGE. 00028 * 00029 * @(#)$Id: slip_uart0.c,v 1.1 2010/08/24 16:23:20 joxe Exp $ 00030 */ 00031 00032 /* 00033 * Machine dependent MSP430 SLIP routines for UART0. 00034 */ 00035 00036 #include "contiki-conf.h" 00037 #include "dev/slip.h" 00038 #include "dev/uart0.h" 00039 /*---------------------------------------------------------------------------*/ 00040 void 00041 slip_arch_writeb(unsigned char c) 00042 { 00043 uart0_writeb(c); 00044 } 00045 /*---------------------------------------------------------------------------*/ 00046 /* 00047 * The serial line is used to transfer IP packets using slip. To make 00048 * it possible to send debug output over the same line we send debug 00049 * output as slip frames (i.e delimeted by SLIP_END). 00050 * 00051 */ 00052 /*---------------------------------------------------------------------------*/ 00053 #if WITH_UIP 00054 int 00055 putchar(int c) 00056 { 00057 #define SLIP_END 0300 00058 static char debug_frame = 0; 00059 00060 if (!debug_frame) { /* Start of debug output */ 00061 slip_arch_writeb(SLIP_END); 00062 slip_arch_writeb('\r'); /* Type debug line == '\r' */ 00063 debug_frame = 1; 00064 } 00065 00066 slip_arch_writeb((char)c); 00067 00068 /* 00069 * Line buffered output, a newline marks the end of debug output and 00070 * implicitly flushes debug output. 00071 */ 00072 if (c == '\n') { 00073 slip_arch_writeb(SLIP_END); 00074 debug_frame = 0; 00075 } 00076 00077 return c; 00078 } 00079 #endif 00080 /*---------------------------------------------------------------------------*/ 00081 /** 00082 * Initalize the RS232 port and the SLIP driver. 00083 * 00084 */ 00085 void 00086 slip_arch_init(unsigned long ubr) 00087 { 00088 uart0_set_input(slip_input_byte); 00089 } 00090 /*---------------------------------------------------------------------------*/