static inline int acpi_battery_scale(struct acpi_battery *battery)
{
return (acpi_battery_mode(battery) ? 10 : 1) *
acpi_battery_ipscale(battery);
}
static int acpi_sbs_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct acpi_battery *battery = to_acpi_battery(psy);
if ((!battery->present) && psp != POWER_SUPPLY_PROP_PRESENT)
return -ENODEV;
acpi_battery_get_state(battery);
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
if (battery->rate_now < 0)
val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
else if (battery->rate_now > 0)
val->intval = POWER_SUPPLY_STATUS_CHARGING;
else
val->intval = POWER_SUPPLY_STATUS_FULL;
break;
case POWER_SUPPLY_PROP_PRESENT:
val->intval = battery->present;
break;
case POWER_SUPPLY_PROP_TECHNOLOGY:
val->intval = acpi_battery_technology(battery);
break;
case POWER_SUPPLY_PROP_CYCLE_COUNT:
val->intval = battery->cycle_count;
break;
case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
val->intval = battery->design_voltage *
acpi_battery_vscale(battery) * 1000;
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
val->intval = battery->voltage_now *
acpi_battery_vscale(battery) * 1000;
break;
case POWER_SUPPLY_PROP_CURRENT_NOW:
case POWER_SUPPLY_PROP_POWER_NOW:
val->intval = abs(battery->rate_now) *
acpi_battery_ipscale(battery) * 1000;
val->intval *= (acpi_battery_mode(battery)) ?
(battery->voltage_now *
acpi_battery_vscale(battery) / 1000) : 1;
break;
case POWER_SUPPLY_PROP_CURRENT_AVG:
case POWER_SUPPLY_PROP_POWER_AVG:
val->intval = abs(battery->rate_avg) *
acpi_battery_ipscale(battery) * 1000;
val->intval *= (acpi_battery_mode(battery)) ?
(battery->voltage_now *
acpi_battery_vscale(battery) / 1000) : 1;
break;
case POWER_SUPPLY_PROP_CAPACITY:
val->intval = battery->state_of_charge;
break;
case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
val->intval = battery->design_capacity *
acpi_battery_scale(battery) * 1000;
break;
case POWER_SUPPLY_PROP_CHARGE_FULL:
case POWER_SUPPLY_PROP_ENERGY_FULL:
val->intval = battery->full_charge_capacity *
acpi_battery_scale(battery) * 1000;
break;
case POWER_SUPPLY_PROP_CHARGE_NOW:
case POWER_SUPPLY_PROP_ENERGY_NOW:
val->intval = battery->capacity_now *
acpi_battery_scale(battery) * 1000;
break;
case POWER_SUPPLY_PROP_TEMP:
val->intval = battery->temp_now - 2730; // dK -> dC
break;
case POWER_SUPPLY_PROP_MODEL_NAME:
val->strval = battery->device_name;
break;
case POWER_SUPPLY_PROP_MANUFACTURER:
val->strval = battery->manufacturer_name;
break;
default:
return -EINVAL;
}
return 0;
}
