static int da9052_rtc_read_time(struct device *dev, struct rtc_time *rtc_tm)
{
struct da9052_rtc *rtc = dev_get_drvdata(dev);
uint8_t v[6];
int ret;
ret = da9052_group_read(rtc->da9052, DA9052_COUNT_S_REG, 6, v);
if (ret < 0) {
rtc_err(rtc->da9052, "Failed to read RTC time : %d\n", ret);
return ret;
}
rtc_tm->tm_year = (v[5] & DA9052_RTC_YEAR) + 100;
rtc_tm->tm_mon = (v[4] & DA9052_RTC_MONTH) - 1;
rtc_tm->tm_mday = v[3] & DA9052_RTC_DAY;
rtc_tm->tm_hour = v[2] & DA9052_RTC_HOUR;
rtc_tm->tm_min = v[1] & DA9052_RTC_MIN;
rtc_tm->tm_sec = v[0] & DA9052_RTC_SEC;
ret = rtc_valid_tm(rtc_tm);
if (ret != 0) {
rtc_err(rtc->da9052, "rtc_valid_tm failed: %d\n", ret);
return ret;
}
return 0;
}
static int da9052_read_alarm(struct da9052_rtc *rtc, struct rtc_time *rtc_tm)
{
int ret;
uint8_t v[5];
ret = da9052_group_read(rtc->da9052, DA9052_ALARM_MI_REG, 5, v);
if (ret != 0) {
rtc_err(rtc, "Failed to group read ALM: %d\n", ret);
return ret;
}
rtc_tm->tm_year = (v[4] & DA9052_RTC_YEAR) + 100;
rtc_tm->tm_mon = (v[3] & DA9052_RTC_MONTH) - 1;
rtc_tm->tm_mday = v[2] & DA9052_RTC_DAY;
rtc_tm->tm_hour = v[1] & DA9052_RTC_HOUR;
rtc_tm->tm_min = v[0] & DA9052_RTC_MIN;
ret = rtc_valid_tm(rtc_tm);
return ret;
}
static int da9052_bat_check_status(struct da9052_battery *bat, int *status)
{
u8 v[2] = {0, 0};
u8 bat_status;
u8 chg_end;
int ret;
int chg_current;
int chg_end_current;
bool dcinsel;
bool dcindet;
bool vbussel;
bool vbusdet;
bool dc;
bool vbus;
ret = da9052_group_read(bat->da9052, DA9052_STATUS_A_REG, 2, v);
if (ret < 0)
return ret;
bat_status = v[0];
chg_end = v[1];
dcinsel = bat_status & DA9052_STATUSA_DCINSEL;
dcindet = bat_status & DA9052_STATUSA_DCINDET;
vbussel = bat_status & DA9052_STATUSA_VBUSSEL;
vbusdet = bat_status & DA9052_STATUSA_VBUSDET;
dc = dcinsel && dcindet;
vbus = vbussel && vbusdet;
/* Preference to WALL(DCIN) charger unit */
if (dc || vbus) {
bat->charger_type = DA9052_CHARGER;
/* If charging end flag is set and Charging current is greater
* than charging end limit then battery is charging
*/
if ((chg_end & DA9052_STATUSB_CHGEND) != 0) {
ret = da9052_read_chg_current(bat, &chg_current);
if (ret < 0)
return ret;
ret = da9052_read_chgend_current(bat, &chg_end_current);
if (ret < 0)
return ret;
if (chg_current >= chg_end_current)
bat->status = POWER_SUPPLY_STATUS_CHARGING;
else
bat->status = POWER_SUPPLY_STATUS_NOT_CHARGING;
} else {
/* If Charging end flag is cleared then battery is
* charging
*/
bat->status = POWER_SUPPLY_STATUS_CHARGING;
}
} else if (dcindet || vbusdet) {
bat->charger_type = DA9052_CHARGER;
bat->status = POWER_SUPPLY_STATUS_NOT_CHARGING;
} else {
bat->charger_type = DA9052_NOCHARGER;
bat->status = POWER_SUPPLY_STATUS_DISCHARGING;
}
if (status != NULL)
*status = bat->status;
return 0;
}
