/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2011 by Amaury Pouly * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #include "config.h" #include "time.h" #include "system.h" #include "rtc.h" #include "timefuncs.h" #include "rtc-imx233.h" #define YEAR1980 315532800 /* 1980/1/1 00:00:00 in UTC */ void rtc_init(void) { imx233_rtc_init(); } int rtc_read_datetime(struct tm *tm) { uint32_t seconds = imx233_rtc_read_seconds(); #ifdef SANSA_FUZEPLUS /* The OF uses PERSISTENT2 register to keep the adjustment and only changes * SECONDS if necessary. */ seconds += imx233_rtc_read_persistent(2); #else /* The Freescale recommended way of keeping time is the number of seconds * since 00:00 1/1/1980 */ seconds += YEAR1980; #endif gmtime_r(&seconds, tm); return 0; } int rtc_write_datetime(const struct tm *tm) { uint32_t seconds; seconds = mktime((struct tm *)tm); #ifdef SANSA_FUZEPLUS /* The OF uses PERSISTENT2 register to keep the adjustment and only changes * SECONDS if necessary. * NOTE: the OF uses this mechanism to prevent roll back in time. Although * Rockbox will handle a negative PERSISTENT2 value, the OF will detect * it and won't return in time before SECONDS */ imx233_rtc_write_persistent(2, seconds - imx233_rtc_read_seconds()); #else /* The Freescale recommended way of keeping time is the number of seconds * since 00:00 1/1/1980 */ imx233_rtc_write_seconds(seconds - YEAR1980); #endif return 0; } void rtc_set_alarm(int h, int m) { (void) h; (void) m; } void rtc_get_alarm(int *h, int *m) { (void) h; (void) m; } void rtc_enable_alarm(bool enable) { (void) enable; } bool rtc_check_alarm_started(bool release_alarm) { (void) release_alarm; return false; } bool rtc_check_alarm_flag(void) { return false; }