rtc.c

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00001 /*
00002  * Copyright (C) 2006 by egnite Software GmbH. All rights reserved.
00003  *
00004  * Redistribution and use in source and binary forms, with or without
00005  * modification, are permitted provided that the following conditions
00006  * are met:
00007  *
00008  * 1. Redistributions of source code must retain the above copyright
00009  *    notice, this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright
00011  *    notice, this list of conditions and the following disclaimer in the
00012  *    documentation and/or other materials provided with the distribution.
00013  * 3. Neither the name of the copyright holders nor the names of
00014  *    contributors may be used to endorse or promote products derived
00015  *    from this software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY EGNITE SOFTWARE GMBH AND CONTRIBUTORS
00018  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00019  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
00020  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL EGNITE
00021  * SOFTWARE GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
00022  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
00023  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
00024  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
00025  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00026  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
00027  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00028  * SUCH DAMAGE.
00029  *
00030  * For additional information see http://www.ethernut.de/
00031  *
00032  */
00033 
00051 #include <dev/rtc.h>
00052 
00053 static NUTRTC *reg_rtc;
00054 
00055 
00066 int NutRegisterRtc(NUTRTC * rtc)
00067 {
00068     reg_rtc = rtc;
00069     if (rtc && reg_rtc->rtc_init) {
00070         if ((*reg_rtc->rtc_init) ()) {
00071             reg_rtc = NULL;
00072             return -1;
00073         }
00074     }
00075     return 0;
00076 }
00077 
00088 int NutRtcGetTime(struct _tm *tm)
00089 {
00090     if (reg_rtc && reg_rtc->rtc_gettime && tm) {
00091         return (*reg_rtc->rtc_gettime) (tm);
00092     }
00093     return -1;
00094 }
00095 
00106 int NutRtcSetTime(CONST struct _tm *tm)
00107 {
00108     if (reg_rtc && reg_rtc->rtc_settime && tm) {
00109         return (*reg_rtc->rtc_settime) (tm);
00110     }
00111     return -1;
00112 }
00113 
00125 int NutRtcGetAlarm(int idx, struct _tm *tm, int *aflags)
00126 {
00127     if (reg_rtc && reg_rtc->rtc_getalarm) {
00128         return (*reg_rtc->rtc_getalarm) (idx, tm, aflags);
00129     }
00130     return -1;
00131 }
00132 
00149 int NutRtcSetAlarm(int idx, CONST struct _tm *tm, int aflags)
00150 {
00151     if (reg_rtc && reg_rtc->rtc_setalarm) {
00152         return (*reg_rtc->rtc_setalarm) (idx, tm, aflags);
00153     }
00154     return -1;
00155 }
00156 
00167 int NutRtcGetStatus(u_long * sflags)
00168 {
00169     if (reg_rtc && reg_rtc->rtc_getstatus) {
00170         return (*reg_rtc->rtc_getstatus) (sflags);
00171     }
00172     return -1;
00173 }
00174 
00182 int NutRtcClearStatus(u_long sflags)
00183 {
00184     if (reg_rtc && reg_rtc->rtc_clrstatus) {
00185         return (*reg_rtc->rtc_clrstatus) (sflags);
00186     }
00187     return -1;
00188 }

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