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linux: up-device-supply-battery: Using charge_types Long_Life and Standard to manage charging threshold

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We found some systems, such as Lenovo ideapad that don't support
charge_control_start_threshold  and charge_control_end_threshold but it
provide the charge_types Long_Life and Standard. The chatre_types
Long_Life operate the battery in the conservation mode. That means
if Long_Life and Standard are found, the system supports the
charge threshold feature.

Co-work-with: Cursor
Reviewed-by: Kate Hsuan <hpa@redhat.com>
This commit is contained in:
Kate Hsuan 2025-07-24 15:28:58 +08:00
parent 0e6493ce22
commit a97c3ceaf5
1 changed files with 50 additions and 3 deletions
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53
src/linux/up-device-supply-battery.c
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@ -69,6 +69,7 @@ struct _UpDeviceSupplyBattery
gdouble rate_old;
guint supported_charge_types;
UpDeviceSupplyBatteryChargeTypes charge_type;
gboolean charge_threshold_by_charge_type;
gboolean shown_invalid_voltage_warning;
gboolean ignore_system_percentage;
};
@ -328,6 +329,41 @@ up_device_battery_get_supported_charge_types (UpDevice *device)
}
}
/**
* up_device_supply_battery_is_charge_threshold_by_charge_type:
* @device: the device to check
*
* Return %TRUE if the charge threshold is controlled by charge_types,
* %FALSE otherwise.
*
* Co-work-with: Cursor
* Reviewed-by: Kate Hsuan <hpa@redhat.com>
*/
static gboolean
up_device_supply_battery_is_charge_threshold_by_charge_type (UpDevice *device) {
GUdevDevice *native = NULL;
UpDeviceSupplyBattery *self = UP_DEVICE_SUPPLY_BATTERY (device);
native = G_UDEV_DEVICE (up_device_get_native (device));
/* if the charge_control_start_threshold or charge_control_end_threshold is found,
* then the charge threshold is not controlled by charge_types. */
if (g_udev_device_has_sysfs_attr (native, "charge_control_start_threshold") ||
g_udev_device_has_sysfs_attr (native, "charge_control_end_threshold"))
return FALSE;
if (self->supported_charge_types & UP_DEVICE_SUPPLY_BATTERY_CHARGE_TYPES_LONG_LIFE) {
if (self->supported_charge_types & (UP_DEVICE_SUPPLY_BATTERY_CHARGE_TYPES_STANDARD |
UP_DEVICE_SUPPLY_BATTERY_CHARGE_TYPES_ADAPTIVE |
UP_DEVICE_SUPPLY_BATTERY_CHARGE_TYPES_FAST)) {
g_debug ("charge_control_start_threshold and charge_control_end_threshold are not found but the supported charge_types Long_lift, Standard or Adaptive was found. Assuming charging threshold is supported");
return TRUE;
}
}
return FALSE;
}
static gboolean
up_device_supply_battery_refresh (UpDevice *device,
UpRefreshReason reason)
@ -394,6 +430,20 @@ up_device_supply_battery_refresh (UpDevice *device,
info.charge_control_supported = FALSE;
}
/* refresh the changes of charge_types */
up_device_battery_get_supported_charge_types (device);
/* Test charge_types attribute, if "Long_Life", "Standard", "Adaptive" or "Fast" are found,
* then set charge_control_supported to TRUE.
*
* Co-work-with: Cursor
* Reviewed-by: Kate Hsuan <hpa@redhat.com> */
if (up_device_supply_battery_is_charge_threshold_by_charge_type (device)) {
g_debug ("charge_types attribute is found, set charge_control_supported to TRUE");
info.charge_control_supported = TRUE;
self->charge_threshold_by_charge_type = TRUE;
}
/* NOTE: We used to warn about full > design, but really that is perfectly fine to happen. */
/* Update the battery information (will only fire events for actual changes) */
@ -462,9 +512,6 @@ up_device_supply_battery_refresh (UpDevice *device,
values.temperature = g_udev_device_get_sysfs_attr_as_double_uncached (native, "temp") / 10.0;
/* refresh the changes of charge_types */
up_device_battery_get_supported_charge_types (device);
up_device_battery_report (battery, &values, reason);
return TRUE;