mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-23 20:32:10 +00:00
65 lines
2.8 KiB
C++
65 lines
2.8 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 Atmosphère-NX
|
|
*
|
|
* 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/>.
|
|
*/
|
|
#include <exosphere.hpp>
|
|
#include "max77620-rtc.h"
|
|
|
|
namespace ams::rtc {
|
|
|
|
namespace {
|
|
|
|
constexpr inline int I2cAddressMax77620Rtc = 0x68;
|
|
|
|
/* TODO: Find datasheet, link to it instead. */
|
|
/* NOTE: Tentatively, Max77620 "mostly" matches https://datasheets.maximintegrated.com/en/ds/MAX77863.pdf. */
|
|
constexpr inline int Max77620RtcRegisterUpdate0 = 0x04;
|
|
|
|
constexpr inline int Max77620RtcRegisterAlarmStart = 0x0E;
|
|
|
|
constexpr inline int Max77620RtcRegisterAlarm1Sec = 0x0E;
|
|
constexpr inline int Max77620RtcRegisterAlarm1Min = 0x0F;
|
|
constexpr inline int Max77620RtcRegisterAlarm1Hour = 0x10;
|
|
constexpr inline int Max77620RtcRegisterAlarm1Weekday = 0x11;
|
|
constexpr inline int Max77620RtcRegisterAlarm1Month = 0x12;
|
|
constexpr inline int Max77620RtcRegisterAlarm1Year = 0x13;
|
|
constexpr inline int Max77620RtcRegisterAlarm1Date = 0x14;
|
|
constexpr inline int Max77620RtcRegisterAlarm2Sec = 0x15;
|
|
constexpr inline int Max77620RtcRegisterAlarm2Min = 0x16;
|
|
constexpr inline int Max77620RtcRegisterAlarm2Hour = 0x17;
|
|
constexpr inline int Max77620RtcRegisterAlarm2Weekday = 0x18;
|
|
constexpr inline int Max77620RtcRegisterAlarm2Month = 0x19;
|
|
constexpr inline int Max77620RtcRegisterAlarm2Year = 0x1A;
|
|
constexpr inline int Max77620RtcRegisterAlarm2Date = 0x1B;
|
|
|
|
constexpr inline int Max77620RtcRegisterAlarmLast = 0x1B;
|
|
|
|
}
|
|
|
|
void StopAlarm() {
|
|
/* Begin update. */
|
|
i2c::SendByte(i2c::Port_5, I2cAddressMax77620Rtc, Max77620RtcRegisterUpdate0, MAX77620_RTC_READ_UPDATE);
|
|
|
|
/* Clear ALARM_EN for all alarm registers. */
|
|
for (auto reg = Max77620RtcRegisterAlarmStart; reg <= Max77620RtcRegisterAlarmLast; ++reg) {
|
|
u8 val = i2c::QueryByte(i2c::Port_5, I2cAddressMax77620Rtc, reg);
|
|
val &= ~MAX77620_RTC_ALARM_EN_MASK;
|
|
i2c::SendByte(i2c::Port_5, I2cAddressMax77620Rtc, reg, val);
|
|
}
|
|
|
|
/* End update. */
|
|
i2c::SendByte(i2c::Port_5, I2cAddressMax77620Rtc, Max77620RtcRegisterUpdate0, MAX77620_RTC_WRITE_UPDATE);
|
|
}
|
|
|
|
}
|