98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
/*
|
|
* Copyright (c) 2010, Mariano Alvira <mar@devl.org> and other contributors
|
|
* to the MC1322x project (http://mc1322x.devl.org) and Contiki.
|
|
*
|
|
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
|
|
*
|
|
* This file is part of the Contiki OS.
|
|
*
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* \file
|
|
* mc1322x-specific rtimer code
|
|
* \author
|
|
* Mariano Alvira <mar@devl.org>
|
|
*/
|
|
|
|
#include <signal.h>
|
|
|
|
/* contiki */
|
|
#include "sys/energest.h"
|
|
#include "sys/rtimer.h"
|
|
|
|
/* mc1322x */
|
|
#include "utils.h"
|
|
|
|
#define DEBUG 0
|
|
#if DEBUG
|
|
#include <stdio.h>
|
|
#define PRINTF(...) printf(__VA_ARGS__)
|
|
#else
|
|
#define PRINTF(...)
|
|
#endif
|
|
|
|
void rtc_isr(void) {
|
|
PRINTF("rtc_wu_irq\n\r");
|
|
PRINTF("now is %u\n", rtimer_arch_now());
|
|
disable_rtc_wu();
|
|
disable_rtc_wu_irq();
|
|
rtimer_run_next();
|
|
clear_rtc_wu_evt();
|
|
}
|
|
|
|
void
|
|
rtimer_arch_init(void)
|
|
{
|
|
}
|
|
|
|
void
|
|
rtimer_arch_schedule(rtimer_clock_t t)
|
|
{
|
|
volatile uint32_t now;
|
|
now = rtimer_arch_now();
|
|
PRINTF("rtimer_arch_schedule time %u; now is %u\n", t,now);
|
|
|
|
#if 1
|
|
/* If specified time is always in the future, counter can wrap without harm */
|
|
*CRM_RTC_TIMEOUT = t - now;
|
|
#else
|
|
/* Immediate interrupt if specified time is before current time. This may also
|
|
happen on counter overflow. */
|
|
if(now>t) {
|
|
*CRM_RTC_TIMEOUT = 1;
|
|
} else {
|
|
*CRM_RTC_TIMEOUT = t - now;
|
|
}
|
|
#endif
|
|
|
|
clear_rtc_wu_evt();
|
|
enable_rtc_wu();
|
|
enable_rtc_wu_irq();
|
|
PRINTF("rtimer_arch_schedule CRM_RTC_TIMEOUT is %u\n", *CRM_RTC_TIMEOUT);
|
|
}
|