94 lines
3.1 KiB
C
94 lines
3.1 KiB
C
/*
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* Copyright (c) 2006, 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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* @(#)$Id: slip_uart0.c,v 1.1 2010/08/24 16:23:20 joxe Exp $
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*/
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/*
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* Machine dependent MSP430 SLIP routines for UART0.
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*/
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#include <io.h>
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#include <signal.h>
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#include "contiki.h"
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#include "dev/slip.h"
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#include "dev/uart0.h"
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/*---------------------------------------------------------------------------*/
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void
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slip_arch_writeb(unsigned char c)
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{
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uart0_writeb(c);
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}
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/*---------------------------------------------------------------------------*/
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/*
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* The serial line is used to transfer IP packets using slip. To make
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* it possible to send debug output over the same line we send debug
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* output as slip frames (i.e delimeted by SLIP_END).
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*
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*/
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/*---------------------------------------------------------------------------*/
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#if WITH_UIP
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int
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putchar(int c)
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{
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#define SLIP_END 0300
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static char debug_frame = 0;
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if (!debug_frame) { /* Start of debug output */
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slip_arch_writeb(SLIP_END);
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slip_arch_writeb('\r'); /* Type debug line == '\r' */
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debug_frame = 1;
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}
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slip_arch_writeb((char)c);
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/*
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* Line buffered output, a newline marks the end of debug output and
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* implicitly flushes debug output.
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*/
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if (c == '\n') {
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slip_arch_writeb(SLIP_END);
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debug_frame = 0;
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}
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return c;
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}
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#endif
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/*---------------------------------------------------------------------------*/
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/**
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* Initalize the RS232 port and the SLIP driver.
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*
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*/
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void
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slip_arch_init(unsigned long ubr)
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{
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uart0_set_input(slip_input_byte);
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}
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/*---------------------------------------------------------------------------*/
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