diff options
| author | srinivas pandruvada <srinivas.pandruvada@intel.com> | 2012-04-05 17:38:54 -0700 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2012-06-01 18:57:11 -0400 |
| commit | a58e1150225cc9e554b76da5519b2bb5bb6e46ff (patch) | |
| tree | 90cbedc661a3bf171f82d4401f226abfa42b89fb /drivers/acpi/battery.c | |
| parent | c5971456964290da7e98222892797b71ef793e62 (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.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 7dd3f9fb9f3..5662d64e673 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, |