Messages in this thread Patch in this message | | | From | Len Brown <> | Subject | [PATCH 14/52] ACPI Battery: Added capacity | Date | Tue, 24 Jul 2012 23:41:10 -0400 |
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From: srinivas pandruvada <srinivas.pandruvada@intel.com>
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> --- drivers/acpi/battery.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 7dd3f9f..5662d64 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, -- 1.7.12.rc0
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