112 lines
3.1 KiB
C
112 lines
3.1 KiB
C
|
/*
|
||
|
|
* /drivers/rtc/power-on-alarm.c
|
||
|
|
*
|
||
|
|
* Copyright (C) 2021 Samsung Electronics
|
||
|
|
*
|
||
|
|
* This software is licensed under the terms of the GNU General Public
|
||
|
|
* License version 2, as published by the Free Software Foundation, and
|
||
|
|
* may be copied, distributed, and modified under those terms.
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/rtc.h>
|
||
|
|
#include <linux/time.h>
|
||
|
|
#include <linux/alarmtimer.h>
|
||
|
|
#include <linux/sec_pon_alarm.h>
|
||
|
|
|
||
|
|
#define BOOTALM_BIT_EN 0
|
||
|
|
#define BOOTALM_BIT_YEAR 1
|
||
|
|
#define BOOTALM_BIT_MONTH 5
|
||
|
|
#define BOOTALM_BIT_DAY 7
|
||
|
|
#define BOOTALM_BIT_HOUR 9
|
||
|
|
#define BOOTALM_BIT_MIN 11
|
||
|
|
#define BOOTALM_BIT_TOTAL 13
|
||
|
|
|
||
|
|
struct pon_alarm_info {
|
||
|
|
struct device *dev;
|
||
|
|
struct rtc_wkalrm val;
|
||
|
|
struct alarm check_poll;
|
||
|
|
struct work_struct check_func;
|
||
|
|
struct wakeup_source *ws;
|
||
|
|
uint lpm_mode;
|
||
|
|
unsigned char triggered;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct pon_alarm_info pon_alarm;
|
||
|
|
|
||
|
|
static unsigned int __read_mostly rtcalarm;
|
||
|
|
static unsigned int __read_mostly lpcharge;
|
||
|
|
module_param(rtcalarm, uint, 0444);
|
||
|
|
module_param(lpcharge, uint, 0444);
|
||
|
|
|
||
|
|
int pon_alarm_get_lpcharge(void)
|
||
|
|
{
|
||
|
|
return lpcharge;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(pon_alarm_get_lpcharge);
|
||
|
|
|
||
|
|
void pon_alarm_parse_data(char *alarm_data, struct rtc_wkalrm *alm)
|
||
|
|
{
|
||
|
|
char buf_ptr[BOOTALM_BIT_TOTAL+1] = {0,};
|
||
|
|
|
||
|
|
strlcpy(buf_ptr, alarm_data, BOOTALM_BIT_TOTAL+1);
|
||
|
|
|
||
|
|
/* 0|1234|56|78|90|12 */
|
||
|
|
/* 1|2010|01|01|00|00 */
|
||
|
|
/*en yyyy mm dd hh mm */
|
||
|
|
alm->time.tm_sec = 0;
|
||
|
|
alm->time.tm_min = (buf_ptr[BOOTALM_BIT_MIN]-'0') * 10
|
||
|
|
+ (buf_ptr[BOOTALM_BIT_MIN+1]-'0');
|
||
|
|
alm->time.tm_hour = (buf_ptr[BOOTALM_BIT_HOUR]-'0') * 10
|
||
|
|
+ (buf_ptr[BOOTALM_BIT_HOUR+1]-'0');
|
||
|
|
alm->time.tm_mday = (buf_ptr[BOOTALM_BIT_DAY]-'0') * 10
|
||
|
|
+ (buf_ptr[BOOTALM_BIT_DAY+1]-'0');
|
||
|
|
alm->time.tm_mon = (buf_ptr[BOOTALM_BIT_MONTH]-'0') * 10
|
||
|
|
+ (buf_ptr[BOOTALM_BIT_MONTH+1]-'0');
|
||
|
|
alm->time.tm_year = (buf_ptr[BOOTALM_BIT_YEAR]-'0') * 1000
|
||
|
|
+ (buf_ptr[BOOTALM_BIT_YEAR+1]-'0') * 100
|
||
|
|
+ (buf_ptr[BOOTALM_BIT_YEAR+2]-'0') * 10
|
||
|
|
+ (buf_ptr[BOOTALM_BIT_YEAR+3]-'0');
|
||
|
|
alm->time.tm_mon -= 1;
|
||
|
|
alm->time.tm_year -= 1900;
|
||
|
|
|
||
|
|
alm->enabled = (*buf_ptr == '1');
|
||
|
|
if (*buf_ptr == '2')
|
||
|
|
alm->enabled = 2;
|
||
|
|
|
||
|
|
pr_info("%s: %s => tm(%d %04d-%02d-%02d %02d:%02d:%02d)\n",
|
||
|
|
__func__, buf_ptr, alm->enabled,
|
||
|
|
alm->time.tm_year + 1900, alm->time.tm_mon + 1, alm->time.tm_mday,
|
||
|
|
alm->time.tm_hour, alm->time.tm_min, alm->time.tm_sec);
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL_GPL(pon_alarm_parse_data);
|
||
|
|
|
||
|
|
static int __init pon_alarm_init(void)
|
||
|
|
{
|
||
|
|
pr_info("%s: rtcalarm=%u, lpcharge=%u\n", __func__, rtcalarm, lpcharge);
|
||
|
|
pon_alarm.lpm_mode = lpcharge;
|
||
|
|
pon_alarm.triggered = 0;
|
||
|
|
pon_alarm.val.enabled = (rtcalarm) ? 1 : 0;
|
||
|
|
rtc_time64_to_tm((time64_t)rtcalarm, &pon_alarm.val.time);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __exit pon_alarm_exit(void)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(pon_alarm_init);
|
||
|
|
module_exit(pon_alarm_exit);
|
||
|
|
|
||
|
|
MODULE_ALIAS("platform:sec_pon_alarm");
|
||
|
|
MODULE_DESCRIPTION("SEC_PON_ALARM driver");
|
||
|
|
MODULE_LICENSE("GPL v2");
|
||
|
|
|