d93d129da6
This avoids the limitation of having a single UART available at runtime, without duplicating code. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
86 lines
2.9 KiB
C
86 lines
2.9 KiB
C
/*
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* Copyright (c) 2012, Texas Instruments Incorporated - http://www.ti.com/
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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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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \addtogroup cc2538-char-io
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* @{
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*
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* \file
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* Arch-specific SLIP functions for the cc2538
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*
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* SLIP can be configured to operate over UART or over USB-Serial, depending
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* on the value of SLIP_ARCH_CONF_USB
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*/
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#include "contiki-conf.h"
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#include "dev/slip.h"
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#include "dev/uart.h"
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#include "usb/usb-serial.h"
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#ifndef SLIP_ARCH_CONF_USB
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#define SLIP_ARCH_CONF_USB 0
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#endif
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#if SLIP_ARCH_CONF_USB
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#define write_byte(b) usb_serial_writeb(b)
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#define set_input(f) usb_serial_set_input(f)
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#define flush() usb_serial_flush()
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#else
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#define write_byte(b) uart_write_byte(SLIP_ARCH_CONF_UART, b)
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#define set_input(f) uart_set_input(SLIP_ARCH_CONF_UART, f)
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#define flush()
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#endif
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#define SLIP_END 0300
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/*---------------------------------------------------------------------------*/
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/**
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* \brief Write a byte over SLIP
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* \param c the byte
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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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write_byte(c);
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if(c == SLIP_END) {
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flush();
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}
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}
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/*---------------------------------------------------------------------------*/
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/**
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* \brief Initialise the arch-specific SLIP driver
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* \param ubr Ignored for the cc2538
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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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set_input(slip_input_byte);
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}
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/*---------------------------------------------------------------------------*/
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/** @} */
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