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https://github.com/CTCaer/hekate
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Add max77620-rtc driver & disable alarm on shut off
This commit is contained in:
Kostas Missos
parent
b3f8961e45
commit
b677d6cad3
4 changed files with 162 additions and 0 deletions
1
Makefile
1
Makefile
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@ -53,6 +53,7 @@ OBJS = $(addprefix $(BUILD)/$(TARGET)/, \
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ini.o \
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ianos.o \
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smmu.o \
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max77620-rtc.o \
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)
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OBJS += $(addprefix $(BUILD)/$(TARGET)/, \
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@ -31,6 +31,7 @@
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#include "mem/heap.h"
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#include "mem/sdram.h"
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#include "power/max77620.h"
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#include "rtc/max77620-rtc.h"
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#include "soc/hw_init.h"
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#include "soc/i2c.h"
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#include "soc/pmc.h"
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@ -229,6 +230,10 @@ void reboot_rcm()
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void power_off()
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{
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sd_unmount();
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// Stop the alarm, in case we injected and powered off too fast.
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max77620_rtc_stop_alarm();
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#ifdef MENU_LOGO_ENABLE
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free(Kc_MENU_LOGO);
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#endif //MENU_LOGO_ENABLE
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@ -243,6 +248,10 @@ void check_power_off_from_hos()
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if (hosWakeup & MAX77620_IRQ_TOP_RTC_MASK)
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{
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sd_unmount();
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// Stop the alarm, in case we injected too fast.
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max77620_rtc_stop_alarm();
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if (h_cfg.autohosoff == 1)
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{
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gfx_clear_grey(&gfx_ctxt, 0x1B);
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77
bootloader/rtc/max77620-rtc.c
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77
bootloader/rtc/max77620-rtc.c
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@ -0,0 +1,77 @@
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/*
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* PMIC Real Time Clock driver for Nintendo Switch's MAX77620-RTC
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*
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* Copyright (c) 2018 CTCaer
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "max77620-rtc.h"
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#include "../soc/i2c.h"
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#include "../utils/util.h"
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void max77620_rtc_get_time(rtc_time_t *time)
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{
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u8 val = 0;
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// Update RTC regs from RTC clock.
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i2c_send_byte(I2C_5, MAX77620_RTC_I2C_ADDR, MAX77620_RTC_UPDATE0_REG, MAX77620_RTC_READ_UPDATE);
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// Get control reg config.
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val = i2c_recv_byte(I2C_5, MAX77620_RTC_I2C_ADDR, MAX77620_RTC_CONTROL_REG);
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// TODO: Check for binary format also?
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// Get time.
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time->sec = i2c_recv_byte(I2C_5, MAX77620_RTC_I2C_ADDR, MAX77620_RTC_SEC_REG) & 0x7F;
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time->min = i2c_recv_byte(I2C_5, MAX77620_RTC_I2C_ADDR, MAX77620_RTC_MIN_REG) & 0x7F;
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time->hour = i2c_recv_byte(I2C_5, MAX77620_RTC_I2C_ADDR, MAX77620_RTC_HOUR_REG) & 0x1F;
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if (!(val & MAX77620_RTC_24H) && time->hour & MAX77620_RTC_HOUR_PM_MASK)
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time->hour = (time->hour & 0xF) + 12;
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// Get day of week. 1: Monday to 7: Sunday.
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time->weekday = 0;
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val = i2c_recv_byte(I2C_5, MAX77620_RTC_I2C_ADDR, MAX77620_RTC_WEEKDAY_REG);
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for (int i = 0; i < 8; i++)
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{
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time->weekday++;
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if (val & 1)
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break;
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val >>= 1;
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}
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// Get date.
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time->date = i2c_recv_byte(I2C_5, MAX77620_RTC_I2C_ADDR, MAX77620_RTC_DATE_REG) & 0x1f;
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time->month = (i2c_recv_byte(I2C_5, MAX77620_RTC_I2C_ADDR, MAX77620_RTC_MONTH_REG) & 0xF) - 1;
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time->year = (i2c_recv_byte(I2C_5, MAX77620_RTC_I2C_ADDR, MAX77620_RTC_YEAR_REG) & 0x7F) + 2000;
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}
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void max77620_rtc_stop_alarm()
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{
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u8 val = 0;
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// Update RTC regs from RTC clock.
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i2c_send_byte(I2C_5, MAX77620_RTC_I2C_ADDR, MAX77620_RTC_UPDATE0_REG, MAX77620_RTC_READ_UPDATE);
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// Stop alarm for both ALARM1 and ALARM2. Horizon uses ALARM2.
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for (int i = 0; i < (MAX77620_RTC_NR_TIME_REGS * 2); i++)
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{
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val = i2c_recv_byte(I2C_5, MAX77620_RTC_I2C_ADDR, MAX77620_ALARM1_SEC_REG + i);
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val &= ~MAX77620_RTC_ALARM_EN_MASK;
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i2c_send_byte(I2C_5, MAX77620_RTC_I2C_ADDR, MAX77620_ALARM1_SEC_REG + i, val);
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}
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// Update RTC clock from RTC regs.
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i2c_send_byte(I2C_5, MAX77620_RTC_I2C_ADDR, MAX77620_RTC_UPDATE0_REG, MAX77620_RTC_WRITE_UPDATE);
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}
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75
bootloader/rtc/max77620-rtc.h
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75
bootloader/rtc/max77620-rtc.h
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@ -0,0 +1,75 @@
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/*
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* PMIC Real Time Clock driver for Nintendo Switch's MAX77620-RTC
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*
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* Copyright (c) 2018 CTCaer
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _MFD_MAX77620_RTC_H_
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#define _MFD_MAX77620_RTC_H_
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#include "../utils/types.h"
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#define MAX77620_RTC_I2C_ADDR 0x68
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#define MAX77620_RTC_NR_TIME_REGS 7
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#define MAX77620_RTC_CONTROLM_REG 0x02
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#define MAX77620_RTC_CONTROL_REG 0x03
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#define MAX77620_RTC_BIN_FORMAT (1 << 0)
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#define MAX77620_RTC_24H (1 << 1)
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#define MAX77620_RTC_UPDATE0_REG 0x04
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#define MAX77620_RTC_WRITE_UPDATE (1 << 0)
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#define MAX77620_RTC_READ_UPDATE (1 << 4)
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#define MAX77620_RTC_SEC_REG 0x07
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#define MAX77620_RTC_MIN_REG 0x08
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#define MAX77620_RTC_HOUR_REG 0x09
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#define MAX77620_RTC_HOUR_PM_MASK (1 << 6)
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#define MAX77620_RTC_WEEKDAY_REG 0x0A
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#define MAX77620_RTC_MONTH_REG 0x0B
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#define MAX77620_RTC_YEAR_REG 0x0C
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#define MAX77620_RTC_DATE_REG 0x0D
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#define MAX77620_ALARM1_SEC_REG 0x0E
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#define MAX77620_ALARM1_MIN_REG 0x0F
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#define MAX77620_ALARM1_HOUR_REG 0x10
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#define MAX77620_ALARM1_WEEKDAY_REG 0x11
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#define MAX77620_ALARM1_MONTH_REG 0x12
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#define MAX77620_ALARM1_YEAR_REG 0x13
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#define MAX77620_ALARM1_DATE_REG 0x14
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#define MAX77620_ALARM2_SEC_REG 0x15
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#define MAX77620_ALARM2_MIN_REG 0x16
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#define MAX77620_ALARM2_HOUR_REG 0x17
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#define MAX77620_ALARM2_WEEKDAY_REG 0x18
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#define MAX77620_ALARM2_MONTH_REG 0x19
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#define MAX77620_ALARM2_YEAR_REG 0x1A
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#define MAX77620_ALARM2_DATE_REG 0x1B
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#define MAX77620_RTC_ALARM_EN_MASK (1 << 7)
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typedef struct _rtc_time_t {
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u8 weekday;
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u8 sec;
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u8 min;
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u8 hour;
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u8 date;
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u8 month;
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u16 year;
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} rtc_time_t;
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void max77620_rtc_get_time(rtc_time_t *time);
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void max77620_rtc_stop_alarm();
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#endif /* _MFD_MAX77620_RTC_H_ */
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