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* [PATCH] ACPI Battery: Added capacity
@ 2012-04-06  0:38 srinivas pandruvada
  2012-04-07  1:28 ` Len Brown
  0 siblings, 1 reply; 4+ messages in thread
From: srinivas pandruvada @ 2012-04-06  0:38 UTC (permalink / raw)
  To: linux-acpi; +Cc: srinivas pandruvada

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>
---
 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 fcc13ac..997b369 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -251,6 +251,13 @@ 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;
@@ -277,6 +284,7 @@ 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,
@@ -293,6 +301,7 @@ 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,
-- 
1.7.4.4


^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2012-06-01 23:00 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-04-06  0:38 [PATCH] ACPI Battery: Added capacity srinivas pandruvada
2012-04-07  1:28 ` Len Brown
2012-04-09 14:59   ` Pandruvada, Srinivas
2012-06-01 23:00     ` Len Brown

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