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hekate/bdk/rtc/max77620-rtc.h

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/*
* PMIC Real Time Clock driver for Nintendo Switch's MAX77620-RTC
*
* Copyright (c) 2018 CTCaer
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef _MFD_MAX77620_RTC_H_
#define _MFD_MAX77620_RTC_H_
#include <utils/types.h>
#define MAX77620_RTC_I2C_ADDR 0x68
#define MAX77620_RTC_NR_TIME_REGS 7
#define MAX77620_RTC_CONTROLM_REG 0x02
#define MAX77620_RTC_CONTROL_REG 0x03
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#define MAX77620_RTC_BIN_FORMAT BIT(0)
#define MAX77620_RTC_24H BIT(1)
#define MAX77620_RTC_UPDATE0_REG 0x04
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#define MAX77620_RTC_WRITE_UPDATE BIT(0)
#define MAX77620_RTC_READ_UPDATE BIT(4)
#define MAX77620_RTC_SEC_REG 0x07
#define MAX77620_RTC_MIN_REG 0x08
#define MAX77620_RTC_HOUR_REG 0x09
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#define MAX77620_RTC_HOUR_PM_MASK BIT(6)
#define MAX77620_RTC_WEEKDAY_REG 0x0A
#define MAX77620_RTC_MONTH_REG 0x0B
#define MAX77620_RTC_YEAR_REG 0x0C
#define MAX77620_RTC_DATE_REG 0x0D
#define MAX77620_ALARM1_SEC_REG 0x0E
#define MAX77620_ALARM1_MIN_REG 0x0F
#define MAX77620_ALARM1_HOUR_REG 0x10
#define MAX77620_ALARM1_WEEKDAY_REG 0x11
#define MAX77620_ALARM1_MONTH_REG 0x12
#define MAX77620_ALARM1_YEAR_REG 0x13
#define MAX77620_ALARM1_DATE_REG 0x14
#define MAX77620_ALARM2_SEC_REG 0x15
#define MAX77620_ALARM2_MIN_REG 0x16
#define MAX77620_ALARM2_HOUR_REG 0x17
#define MAX77620_ALARM2_WEEKDAY_REG 0x18
#define MAX77620_ALARM2_MONTH_REG 0x19
#define MAX77620_ALARM2_YEAR_REG 0x1A
#define MAX77620_ALARM2_DATE_REG 0x1B
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#define MAX77620_RTC_ALARM_EN_MASK BIT(7)
typedef struct _rtc_time_t {
u8 weekday;
u8 sec;
u8 min;
u8 hour;
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u8 day;
u8 month;
u16 year;
} rtc_time_t;
void max77620_rtc_get_time(rtc_time_t *time);
void max77620_rtc_stop_alarm();
void max77620_rtc_epoch_to_date(u32 epoch, rtc_time_t *time);
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u32 max77620_rtc_date_to_epoch(const rtc_time_t *time);
#endif /* _MFD_MAX77620_RTC_H_ */