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authorsrinivas pandruvada <srinivas.pandruvada@intel.com>2012-04-05 17:38:54 -0700
committerLen Brown <len.brown@intel.com>2012-06-01 18:57:11 -0400
commita58e1150225cc9e554b76da5519b2bb5bb6e46ff (patch)
tree90cbedc661a3bf171f82d4401f226abfa42b89fb /drivers/acpi/battery.c
parentc5971456964290da7e98222892797b71ef793e62 (diff)
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>
Diffstat (limited to 'drivers/acpi/battery.c')
-rw-r--r--drivers/acpi/battery.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 7dd3f9fb9f3f..5662d64e6733 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -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,