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- /* sd2iec - SD/MMC to Commodore serial bus interface/controller
- Copyright (C) 2007-2010 Ingo Korb <ingo@akana.de>
- Inspiration and low-level SD/MMC access based on code from MMC2IEC
- by Lars Pontoppidan et al., see sdcard.c|h and config.h.
- FAT filesystem access based on code from ChaN and Jim Brain, see ff.c|h.
- 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; version 2 of the License only.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- rtc.h: Definitions for RTC support
- */
- #ifndef RTC_H
- #define RTC_H
- #include <stdint.h>
- typedef enum
- {
- RTC_NOT_FOUND, /* No RTC present */
- RTC_INVALID, /* RTC present, but contents invalid */
- RTC_OK /* RTC present and working */
- } rtcstate_t;
- struct tm
- {
- uint8_t tm_sec; // 0..59
- uint8_t tm_min; // 0..59
- uint8_t tm_hour; // 0..23
- uint8_t tm_mday; // 1..[28..31]
- uint8_t tm_mon; // 0..11
- uint16_t tm_year; // since 0 A.D.
- uint8_t tm_wday; // 0 to 6, sunday is 6
- // A Unix struct tm has a few more fields we don't need in this application
- };
- #define RTC_MAGIC (0x43545253L)
- extern rtcstate_t rtc_state;
- void rtc_init( void );
- /* return RTC valid state based on magic token in backup register */
- uint8_t rtc_isvalid( void );
- /* Return current time in struct tm */
- void read_rtc( struct tm *time );
- /* Set time from struct tm, also sets RTC valid */
- void set_rtc( struct tm *time );
- /* Set RTC invalid */
- void invalidate_rtc( void );
- /* get current time in 60-bit BCD format (WYYYYMMDDHHMMSS) (W=DOW) */
- uint64_t get_bcdtime( void );
- /* set current time from 56-bit BCD format (YYYYMMDDHHMMSS)
- DOW is calculated */
- void set_bcdtime( uint64_t btime );
- /* print the time to the console */
- void printtime( struct tm *time );
- void testbattery( void );
- #endif
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