6668b65ef2
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8912 a1c6a512-1295-4272-9138-f99709370657
118 lines
3.3 KiB
C
118 lines
3.3 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) 2002 by Linus Nielsen Feltzing
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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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 <stdio.h> /* get NULL */
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#include "config.h"
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#include "kernel.h"
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#include "rtc.h"
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#include "timefuncs.h"
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#include "debug.h"
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#ifndef SIMULATOR
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static struct tm tm;
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#endif
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bool valid_time(const struct tm *tm)
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{
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if (tm->tm_hour < 0 || tm->tm_hour > 23 ||
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tm->tm_sec < 0 || tm->tm_sec > 59 ||
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tm->tm_min < 0 || tm->tm_min > 59 ||
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tm->tm_year < 100 || tm->tm_year > 199 ||
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tm->tm_mon < 0 || tm->tm_mon > 11 ||
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tm->tm_wday < 0 || tm->tm_wday > 6 ||
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tm->tm_mday < 1 || tm->tm_mday > 31)
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return false;
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else
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return true;
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}
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static int last_tick = 0;
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struct tm *get_time(void)
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{
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#ifndef SIMULATOR
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#ifdef CONFIG_RTC
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/* Don't read the RTC more than 4 times per second */
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if (last_tick + HZ/4 < current_tick) {
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char rtcbuf[7];
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rtc_read_datetime(rtcbuf);
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tm.tm_sec = ((rtcbuf[0] & 0x70) >> 4) * 10 + (rtcbuf[0] & 0x0f);
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tm.tm_min = ((rtcbuf[1] & 0x70) >> 4) * 10 + (rtcbuf[1] & 0x0f);
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tm.tm_hour = ((rtcbuf[2] & 0x30) >> 4) * 10 + (rtcbuf[2] & 0x0f);
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tm.tm_wday = rtcbuf[3] & 0x07;
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tm.tm_mday = ((rtcbuf[4] & 0x30) >> 4) * 10 + (rtcbuf[4] & 0x0f);
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tm.tm_mon = ((rtcbuf[5] & 0x10) >> 4) * 10 + (rtcbuf[5] & 0x0f) - 1;
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tm.tm_year = ((rtcbuf[6] & 0xf0) >> 4) * 10 + (rtcbuf[6] & 0x0f) + 100;
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tm.tm_yday = 0; /* Not implemented for now */
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tm.tm_isdst = -1; /* Not implemented for now */
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}
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#else
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tm.tm_sec = 0;
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tm.tm_min = 0;
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tm.tm_hour = 0;
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tm.tm_mday = 1;
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tm.tm_mon = 0;
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tm.tm_year = 70;
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tm.tm_wday = 1;
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tm.tm_yday = 0; /* Not implemented for now */
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tm.tm_isdst = -1; /* Not implemented for now */
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#endif
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return &tm;
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#else
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time_t now = time(NULL);
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return localtime(&now);
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#endif
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}
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int set_time(const struct tm *tm)
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{
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#ifdef CONFIG_RTC
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int rc;
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char rtcbuf[7];
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if (valid_time(tm))
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{
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rtcbuf[0]=((tm->tm_sec/10) << 4) | (tm->tm_sec%10);
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rtcbuf[1]=((tm->tm_min/10) << 4) | (tm->tm_min%10);
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rtcbuf[2]=((tm->tm_hour/10) << 4) | (tm->tm_hour%10);
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rtcbuf[3]=tm->tm_wday;
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rtcbuf[4]=((tm->tm_mday/10) << 4) | (tm->tm_mday%10);
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rtcbuf[5]=(((tm->tm_mon+1)/10) << 4) | ((tm->tm_mon+1)%10);
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rtcbuf[6]=(((tm->tm_year-100)/10) << 4) | ((tm->tm_year-100)%10);
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rc = rtc_write_datetime(rtcbuf);
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if(rc)
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return -1;
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else
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return 0;
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}
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else
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{
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return -2;
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}
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#else
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(void)tm;
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return 0;
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#endif
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}
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