nes-proj/cpu/cc2538/dbg.c

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/*
* Copyright (c) 2012, Texas Instruments Incorporated - http://www.ti.com/
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** \addtogroup cc2538-char-io
* @{ */
/**
* \file
* Implementation of arch-specific functions required by the dbg_io API in
* cpu/arm/common/dbg-io
*/
#include "contiki.h"
#include "dbg.h"
#include "dev/uart.h"
#include "usb/usb-serial.h"
#include <stdio.h>
/*---------------------------------------------------------------------------*/
#ifndef DBG_CONF_USB
#define DBG_CONF_USB 0
#endif
#if DBG_CONF_USB
#define write_byte(b) usb_serial_writeb(b)
#define flush() usb_serial_flush()
#else
#define write_byte(b) uart_write_byte(DBG_CONF_UART, b)
#define flush()
#endif
/*---------------------------------------------------------------------------*/
#undef putchar
#undef puts
#define SLIP_END 0300
/*---------------------------------------------------------------------------*/
int
putchar(int c)
{
#if DBG_CONF_SLIP_MUX
static char debug_frame = 0;
if(!debug_frame) {
write_byte(SLIP_END);
write_byte('\r');
debug_frame = 1;
}
#endif
write_byte(c);
if(c == '\n') {
#if DBG_CONF_SLIP_MUX
write_byte(SLIP_END);
debug_frame = 0;
#endif
dbg_flush();
}
return c;
}
/*---------------------------------------------------------------------------*/
unsigned int
dbg_send_bytes(const unsigned char *s, unsigned int len)
{
unsigned int i = 0;
while(s && *s != 0) {
if(i >= len) {
break;
}
putchar(*s++);
i++;
}
return i;
}
/*---------------------------------------------------------------------------*/
int
puts(const char *s)
{
unsigned int i = 0;
while(s && *s != 0) {
putchar(*s++);
i++;
}
putchar('\n');
return i;
}
/*---------------------------------------------------------------------------*/
/** @} */