177 lines
4.4 KiB
C
177 lines
4.4 KiB
C
/*
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* Copyright (c) 2007, 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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* This file is part of the Contiki operating system.
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*
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*/
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/**
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* \file
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* Main system file for the MSB-430 port.
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* \author
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* Michael Baar <baar@inf.fu-berlin.de>, Nicolas Tsiftes <nvt@sics.se>
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*/
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#include <io.h>
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#include <signal.h>
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#include <stdio.h>
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#include <string.h>
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#include "contiki.h"
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#include "contiki-msb430.h"
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extern volatile bool uart_edge;
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SENSORS(NULL);
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static void
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msb_ports_init(void)
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{
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P1SEL = 0x00; P1OUT = 0x00; P1DIR = 0x00;
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P2SEL = 0x00; P2OUT = 0x18; P2DIR = 0x1A;
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P3SEL = 0x00; P3OUT = 0x09; P3DIR = 0x21;
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P4SEL = 0x00; P4OUT = 0x00; P4DIR = 0x00;
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P5SEL = 0x0E; P5OUT = 0xF9; P5DIR = 0xFD;
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P6SEL = 0x07; P6OUT = 0x00; P6DIR = 0xC8;
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}
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int
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main(void)
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{
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msp430_cpu_init();
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/* Platform-specific initialization. */
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msb_ports_init();
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adc_init();
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clock_init();
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rtimer_init();
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ctimer_init();
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sht11_init();
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leds_init();
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leds_on(LEDS_ALL);
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// low level
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irq_init();
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process_init();
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// serial interface
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rs232_init();
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#ifdef WITH_SDC
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spi_init();
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#endif
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uart_lock(UART_MODE_RS232);
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uart_unlock(UART_MODE_RS232);
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#if WITH_UIP
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slip_arch_init(BAUD2UBR(115200));
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#endif
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/* System services */
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process_start(&etimer_process, NULL);
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node_id_restore();
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init_net();
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energest_init();
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#if PROFILE_CONF_ON
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profile_init();
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#endif /* PROFILE_CONF_ON */
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leds_off(LEDS_ALL);
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printf(CONTIKI_VERSION_STRING " started. Node id %u.\n", node_id);
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autostart_start((struct process **) autostart_processes);
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/*
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* This is the scheduler loop.
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*/
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ENERGEST_ON(ENERGEST_TYPE_CPU);
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while (1) {
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int r;
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#if PROFILE_CONF_ON
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profile_episode_start();
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#endif /* PROFILE_CONF_ON */
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do {
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/* Reset watchdog. */
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r = process_run();
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} while(r > 0);
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#if PROFILE_CONF_ON
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profile_episode_end();
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#endif /* PROFILE_CONF_ON */
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/*
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* Idle processing.
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*/
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int s = splhigh(); /* Disable interrupts. */
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if (process_nevents() != 0) {
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splx(s); /* Re-enable interrupts. */
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} else {
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static unsigned long irq_energest = 0;
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/* Re-enable interrupts and go to sleep atomically. */
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ENERGEST_OFF(ENERGEST_TYPE_CPU);
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ENERGEST_ON(ENERGEST_TYPE_LPM);
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/*
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* We only want to measure the processing done in IRQs when we
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* are asleep, so we discard the processing time done when we
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* were awake.
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*/
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energest_type_set(ENERGEST_TYPE_IRQ, irq_energest);
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if (uart_edge) {
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_BIS_SR(LPM1_bits + GIE);
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} else {
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_BIS_SR(LPM1_bits + GIE);
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}
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/*
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* We get the current processing time for interrupts that was
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* done during the LPM and store it for next time around.
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*/
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dint();
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irq_energest = energest_type_time(ENERGEST_TYPE_IRQ);
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eint();
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ENERGEST_OFF(ENERGEST_TYPE_LPM);
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ENERGEST_ON(ENERGEST_TYPE_CPU);
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#if PROFILE_CONF_ON
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profile_clear_timestamps();
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#endif /* PROFILE_CONF_ON */
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}
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}
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return 0;
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}
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