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ACPI Battery: Added capacity 

Added Capacity field, which is a pre-defined power_supply
property. Calculating capacity using current charge/energy and
full charge/energy.
Some user mode implementations are relying on capacity field to
show battery strength and power down decision.

Signed-off-by: srinivas pandruvada <srinivas.pandruvada@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
wifi-calibration
srinivas pandruvada 2012-04-05 17:38:54 -07:00 committed by Len Brown
parent c597145696
commit a58e115022
1 changed files with 9 additions and 0 deletions
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9
drivers/acpi/battery.c
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@ -250,6 +250,13 @@ static int acpi_battery_get_property(struct power_supply *psy,
else
val->intval = battery->capacity_now * 1000;
break;
case POWER_SUPPLY_PROP_CAPACITY:
if (battery->capacity_now && battery->full_charge_capacity)
val->intval = battery->capacity_now * 100/
battery->full_charge_capacity;
else
val->intval = 0;
break;
case POWER_SUPPLY_PROP_MODEL_NAME:
val->strval = battery->model_number;
break;
@ -276,6 +283,7 @@ static enum power_supply_property charge_battery_props[] = {
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_MANUFACTURER,
POWER_SUPPLY_PROP_SERIAL_NUMBER,
@ -292,6 +300,7 @@ static enum power_supply_property energy_battery_props[] = {
POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN,
POWER_SUPPLY_PROP_ENERGY_FULL,
POWER_SUPPLY_PROP_ENERGY_NOW,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_MANUFACTURER,
POWER_SUPPLY_PROP_SERIAL_NUMBER,