96 lines
3.2 KiB
C
96 lines
3.2 KiB
C
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/*
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* Copyright (c) 2010, Loughborough University - 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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* This file is part of the Contiki operating system.
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*/
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/**
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* \file
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* Model-specific functions for Sensinode devices.
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*
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* Bankable
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*
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* \author
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* George Oikonomou - <oikonomou@users.sourceforge.net>
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*/
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#include "dev/models.h"
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#include "dev/uart1.h"
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#include "dev/m25p16.h"
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/*---------------------------------------------------------------------------*/
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void
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model_init()
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{
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#ifdef MODEL_N740
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/*
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* We want to prevent the dongle from controlling the state of the
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* analog switch on the N740s.
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*
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* Set P0_3 as out and start with P0_3=0 (USB and Light selected)
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*/
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P0DIR |= 0x08; /* P0_3 out */
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P0_3 = 0;
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/* Init the serial-parallel chip for N740s. This will also 'init' LEDs */
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n740_ser_par_init();
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/* Put the Serial Flash in Deep Power mode */
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n740_analog_deactivate();
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#if M25P16_CONF_ON
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m25p16_dp();
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#endif /* SERIAL_FLASH_CONF_ON */
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n740_ser_par_set(0);
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#endif
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}
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/*---------------------------------------------------------------------------*/
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void
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model_uart_intr_en()
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{
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#ifdef MODEL_N740
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/*
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* Dirty, ugly hack for the N740 USART1 RX issue:
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* When the USB is for whatever reason disabled (either disconnected or the
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* analog switch has switched to the D-connector), RX starts flowing down
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* pin 1.7 (and the line stays low), resulting in non-stop UART1_RX
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* interrupts. So, we only acknowledge the interrupt when the line is
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* high and the dongle is connected (thus we are on USB).
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*
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* For all other models, just turn the interrupt on
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*
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* Interrupts will only turn on if UART_ONE_CONF_WITH_INPUT is defined 1
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*/
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if(P1_7 == 1 && P0_3 == 0) {
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UART1_RX_INT(1);
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}
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#else
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UART1_RX_INT(1);
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#endif
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}
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