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52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/*
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* Copyright (C) 2016 Michel Rottleuthner <michel.rottleuthner@haw-hamburg.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup sys_fatfs_diskio
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* @{
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*
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* @file
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* @brief Implementation of common FatFs interface for native and sdcard_spi
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* Based on low level disk I/O module example for FatFs by ChaN, 2016
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*
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* @author Michel Rottleuthner <michel.rottleuthner@haw-hamburg.de>
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*
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* @}
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*/
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#include "fatfs/diskio.h" /* FatFs lower layer API */
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#include "fatfs_diskio_common.h"
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#include "time.h"
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#include "stdint.h"
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#if FATFS_FFCONF_OPT_FS_NORTC == 0
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#include "periph/rtc.h"
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DWORD get_fattime(void)
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{
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struct tm time;
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rtc_get_time(&time);
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/* bit 31:25 Year origin from 1980 (0..127) */
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uint8_t year = time.tm_year + RTC_YEAR_OFFSET - FATFS_YEAR_OFFSET;
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uint8_t month = time.tm_mon + 1; /* bit 24:21 month (1..12) */
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uint8_t day_of_month = time.tm_mon + 1; /* bit 20:16 day (1..31) */
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uint8_t hour = time.tm_hour; /* bit 15:11 hour (0..23) */
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uint8_t minute = time.tm_min; /* bit 10:5 minute (0..59) */
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uint8_t second = (time.tm_sec / 2); /* bit 4:0 second/2 (0..29) */
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return year << FATFS_DISKIO_FATTIME_YEAR_OFFS |
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month << FATFS_DISKIO_FATTIME_MON_OFFS |
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day_of_month << FATFS_DISKIO_FATTIME_DAY_OFFS |
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hour << FATFS_DISKIO_FATTIME_HH_OFFS |
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minute << FATFS_DISKIO_FATTIME_MM_OFFS |
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second;
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}
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#endif
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