static int bq27541_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
int ret = 0;
struct bq27541_device_info *di = to_bq27541_device_info(psy);
DBG("Enter:%s %d psp= %d\n",__FUNCTION__,__LINE__,psp);
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
ret = bq27541_battery_status(di, val);
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
case POWER_SUPPLY_PROP_PRESENT:
val->intval = bq27541_battery_voltage(di);
if (psp == POWER_SUPPLY_PROP_PRESENT){
val->intval = val->intval <= 0 ? 0 : 1;
}
break;
case POWER_SUPPLY_PROP_CURRENT_NOW:
val->intval = bq27541_battery_current(di);
break;
case POWER_SUPPLY_PROP_CAPACITY:
if (di->power_down == 1){ // < 3.4V power down ,capacity = 0;
val->intval = 0;
}else {
val->intval = bq27541_battery_rsoc(di);
}
break;
case POWER_SUPPLY_PROP_TEMP:
val->intval = bq27541_battery_temperature(di);
break;
case POWER_SUPPLY_PROP_TECHNOLOGY:
val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
break;
case POWER_SUPPLY_PROP_HEALTH:
ret = bq27541_health_status(di, val);
break;
case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW:
ret = bq27541_battery_time(di, BQ27x00_REG_TTE, val);
break;
case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
ret = bq27541_battery_time(di, BQ27x00_REG_TTECP, val);
break;
case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
ret = bq27541_battery_time(di, BQ27x00_REG_TTF, val);
break;
default:
return -EINVAL;
}
return ret;
}
/**********************
Boot threshold voltage limit is set in the ADC driver,judge here only to prevent 0% capacity but voltage is more than 3.5V
leading to shut down immediately after boot
***********************/
static void battery_capacity_check(struct bq27541_device_info *di)
{
int rsoc;
rsoc = bq27541_battery_rsoc(di);
if(rsoc <= 0){
if(is_usbcharging()){
printk("usb charging and capacity less than 0%,continue charging\n");
low_usb_charge = true;
return;
}else if(!is_accharging()){
printk("no charging and capacity less than 0%,power off\n");
kernel_power_off();
}
}
#if defined(CONFIG_REBOOT_TO_POWER_OFF)
if ((board_boot_mode() == BOOT_MODE_REBOOT) )
if((0 == charge_status_now) && (rsoc <= 5))
kernel_power_off();
#endif
return;
}
static int bq27541_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
int ret = 0;
struct bq27541_device_info *di = to_bq27541_device_info(psy);
DBG("Enter:%s %d psp= %d\n",__FUNCTION__,__LINE__,psp);
switch (psp)
{
case POWER_SUPPLY_PROP_STATUS:
ret = bq27541_battery_status(di, val);
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
val->intval = bq27541_battery_voltage(di);
break;
case POWER_SUPPLY_PROP_PRESENT:
#if 0
val->intval = bq27541_battery_voltage(di);
if (psp == POWER_SUPPLY_PROP_PRESENT){
val->intval = val->intval <= 0 ? 0 : 1;
}
#else
val->intval = 1;
#endif
break;
case POWER_SUPPLY_PROP_CURRENT_NOW:
val->intval = bq27541_battery_current(di);
break;
case POWER_SUPPLY_PROP_CAPACITY:
val->intval = bq27541_battery_rsoc(di);
break;
case POWER_SUPPLY_PROP_TEMP:
val->intval = bq27541_battery_temperature(di);
#if defined(CONFIG_CHARGER_LIMITED_BY_TEMP)
if(1 == charge_en_flags)
temp_val = val->intval;
#endif
break;
case POWER_SUPPLY_PROP_TECHNOLOGY:
val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
break;
case POWER_SUPPLY_PROP_HEALTH:
ret = bq27541_health_status(di, val);
break;
case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW:
ret = bq27541_battery_time(di, BQ27x00_REG_TTE, val);
break;
case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
ret = bq27541_battery_time(di, BQ27x00_REG_TTECP, val);
break;
case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
ret = bq27541_battery_time(di, BQ27x00_REG_TTF, val);
break;
default:
return -EINVAL;
}
return ret;
}
