[PATCH] gta01_battery: add charge_{now,full} properties

[Paul Fertser]

Some userspace (notably Enlightment's batget) ignores "capacity"
completely if there're no other properties. Expose a fake value
(850mAh, typical for BL-5C) to make them happy.

Signed-off-by: Paul Fertser <fercerpav at gmail.com>
---
 drivers/power/gta01_battery.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/drivers/power/gta01_battery.c b/drivers/power/gta01_battery.c
index 3c7c497..2078b07 100644
--- a/drivers/power/gta01_battery.c
+++ b/drivers/power/gta01_battery.c
@@ -24,8 +24,13 @@ static enum power_supply_property gta01_bat_props[] = {
 	POWER_SUPPLY_PROP_VOLTAGE_NOW,
 	POWER_SUPPLY_PROP_CURRENT_NOW,
 	POWER_SUPPLY_PROP_CAPACITY,
+	POWER_SUPPLY_PROP_CHARGE_FULL,
+	POWER_SUPPLY_PROP_CHARGE_NOW,
 };
 
+/* Capacity of typical BL-5C dumb battery */
+#define GTA01_BAT_CHARGE_FULL	850000
+
 static int gta01_bat_voltscale(int volt)
 {
 	/* This table is suggested by SpeedEvil based on analysis of
@@ -83,6 +88,14 @@ static int gta01_bat_get_property(struct power_supply *psy,
 	case POWER_SUPPLY_PROP_PRESENT:
 		val->intval = 1; /* You must never run GTA01 without battery. */
 		break;
+	case POWER_SUPPLY_PROP_CHARGE_NOW:
+		if (bat->pdata->get_voltage) {
+			int perc = gta01_bat_voltscale(
+					bat->pdata->get_voltage()/1000);
+			val->intval = perc * GTA01_BAT_CHARGE_FULL / 100;
+		} else
+			val->intval = 0;
+		break;
 	case POWER_SUPPLY_PROP_CAPACITY:
 		if (bat->pdata->get_voltage)
 			val->intval = gta01_bat_voltscale(
@@ -90,6 +103,9 @@ static int gta01_bat_get_property(struct power_supply *psy,
 		else
 			val->intval = 0;
 		break;
+	case POWER_SUPPLY_PROP_CHARGE_FULL:
+		val->intval = GTA01_BAT_CHARGE_FULL;
+		break;
 
 	default:
 		return -EINVAL;
-- 
1.6.0.6