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linux: up-device-supply-battery: reset the status to discharging when current_now is negative

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For some USB battery solutions, the kernel reports charging when
connecting a charger but in reality, the battery discharges and
current_now is negative. This work reset the battery status to
"Discharging" when current_now is negative and line power is
online.

Resolves: #276

Signed-off-by: Kate Hsuan <hpa@redhat.com>
This commit is contained in:
Kate Hsuan 2024-12-31 13:09:09 +08:00
parent 9d754d8b2f
commit d7ff457784
1 changed files with 8 additions and 1 deletions
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9
src/linux/up-device-supply-battery.c
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@ -292,7 +292,14 @@ up_device_supply_battery_refresh (UpDevice *device,
values.percentage = CLAMP(values.percentage, 0.0f, 100.0f);
}
values.state = up_device_supply_get_state (native);
/* For some battery solutions, for example axp20x-battery, the kernel reports
* status = charging but the battery actually discharges when connecting a
* charger. Upower reports the battery is "discharging" when current_now is
* found and is a negative value.*/
if (g_udev_device_get_sysfs_attr_as_double_uncached (native, "current_now") < 0.0)
values.state = UP_DEVICE_STATE_DISCHARGING;
else
values.state = up_device_supply_get_state (native);
values.temperature = g_udev_device_get_sysfs_attr_as_double_uncached (native, "temp") / 10.0;