rtc.c

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/*
 * Copyright (C) 2006 by egnite Software GmbH. 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 holders nor the names of
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY EGNITE SOFTWARE GMBH 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 EGNITE
 * SOFTWARE GMBH 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.
 *
 * For additional information see http://www.ethernut.de/
 *
 */

#include <dev/rtc.h>

static NUTRTC *reg_rtc;


int NutRegisterRtc(NUTRTC * rtc)
{
    reg_rtc = rtc;
    if (rtc && reg_rtc->rtc_init) {
        if ((*reg_rtc->rtc_init) ()) {
            reg_rtc = NULL;
            return -1;
        }
    }
    return 0;
}

int NutRtcGetTime(struct _tm *tm)
{
    if (reg_rtc && reg_rtc->rtc_gettime && tm) {
        return (*reg_rtc->rtc_gettime) (tm);
    }
    return -1;
}

int NutRtcSetTime(CONST struct _tm *tm)
{
    if (reg_rtc && reg_rtc->rtc_settime && tm) {
        return (*reg_rtc->rtc_settime) (tm);
    }
    return -1;
}

int NutRtcGetAlarm(int idx, struct _tm *tm, int *aflags)
{
    if (reg_rtc && reg_rtc->rtc_getalarm) {
        return (*reg_rtc->rtc_getalarm) (idx, tm, aflags);
    }
    return -1;
}

int NutRtcSetAlarm(int idx, CONST struct _tm *tm, int aflags)
{
    if (reg_rtc && reg_rtc->rtc_setalarm) {
        return (*reg_rtc->rtc_setalarm) (idx, tm, aflags);
    }
    return -1;
}

int NutRtcGetStatus(uint32_t * sflags)
{
    if (reg_rtc && reg_rtc->rtc_getstatus) {
        return (*reg_rtc->rtc_getstatus) (sflags);
    }
    return -1;
}

int NutRtcClearStatus(uint32_t sflags)
{
    if (reg_rtc && reg_rtc->rtc_clrstatus) {
        return (*reg_rtc->rtc_clrstatus) (sflags);
    }
    return -1;
}