102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2011 by Amaury Pouly
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "time.h"
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#include "system.h"
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#include "rtc.h"
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#include "timefuncs.h"
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#include "rtc-imx233.h"
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#define YEAR1980 315532800 /* 1980/1/1 00:00:00 in UTC */
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void rtc_init(void)
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{
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/* rtc-imx233 is initialized by the system */
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}
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int rtc_read_datetime(struct tm *tm)
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{
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uint32_t seconds = imx233_rtc_read_seconds();
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#if defined(SANSA_FUZEPLUS) || defined(CREATIVE_ZENXFI3)
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/* The OF uses PERSISTENT2 register to keep the adjustment and only changes
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* SECONDS if necessary. */
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seconds += imx233_rtc_read_persistent(2);
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#else
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/* The Freescale recommended way of keeping time is the number of seconds
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* since 00:00 1/1/1980 */
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seconds += YEAR1980;
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#endif
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gmtime_r(&seconds, tm);
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return 0;
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}
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int rtc_write_datetime(const struct tm *tm)
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{
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uint32_t seconds;
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seconds = mktime((struct tm *)tm);
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#if defined(SANSA_FUZEPLUS) || defined(CREATIVE_ZENXFI3)
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/* The OF uses PERSISTENT2 register to keep the adjustment and only changes
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* SECONDS if necessary.
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* NOTE: the OF uses this mechanism to prevent roll back in time. Although
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* Rockbox will handle a negative PERSISTENT2 value, the OF will detect
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* it and won't return in time before SECONDS */
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imx233_rtc_write_persistent(2, seconds - imx233_rtc_read_seconds());
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#else
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/* The Freescale recommended way of keeping time is the number of seconds
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* since 00:00 1/1/1980 */
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imx233_rtc_write_seconds(seconds - YEAR1980);
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#endif
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return 0;
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}
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void rtc_set_alarm(int h, int m)
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{
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(void) h;
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(void) m;
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}
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void rtc_get_alarm(int *h, int *m)
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{
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(void) h;
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(void) m;
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}
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void rtc_enable_alarm(bool enable)
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{
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(void) enable;
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}
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bool rtc_check_alarm_started(bool release_alarm)
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{
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(void) release_alarm;
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return false;
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}
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bool rtc_check_alarm_flag(void)
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{
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return false;
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}
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