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Commit 3e58ea0d authored by Alexey Starikovskiy's avatar Alexey Starikovskiy Committed by Len Brown
Browse files

ACPI: Battery: add sysfs alarm 



Signed-off-by: default avatarAlexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent d7380965

drivers/acpi/battery.c

+32 −1
Original line number Diff line number Diff line
@@ -687,6 +687,34 @@ static void acpi_battery_remove_fs(struct acpi_device *device) 
}



#endif



static ssize_t acpi_battery_alarm_show(struct device *dev,

					struct device_attribute *attr,

					char *buf)

{

	struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev));

	return sprintf(buf, "%d\n", battery->alarm * 1000);

}



static ssize_t acpi_battery_alarm_store(struct device *dev,

					struct device_attribute *attr,

					const char *buf, size_t count)

{

	unsigned long x;

	struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev));

	if (sscanf(buf, "%ld\n", &x) == 1)

		battery->alarm = x/1000;

	if (acpi_battery_present(battery))

		acpi_battery_set_alarm(battery);

	return count;

}



static struct device_attribute alarm_attr = {

	.attr = {.name = "alarm", .mode = 0644, .owner = THIS_MODULE},

	.show = acpi_battery_alarm_show,

	.store = acpi_battery_alarm_store,

};



/* --------------------------------------------------------------------------

                                 Driver Interface

   -------------------------------------------------------------------------- */
@@ -732,6 +760,7 @@ static int acpi_battery_add(struct acpi_device *device) 
	battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;

	battery->bat.get_property = acpi_battery_get_property;

	result = power_supply_register(&battery->device->dev, &battery->bat);

	result = device_create_file(battery->bat.dev, &alarm_attr);

	status = acpi_install_notify_handler(device->handle,

					     ACPI_ALL_NOTIFY,

					     acpi_battery_notify, battery);
@@ -767,8 +796,10 @@ static int acpi_battery_remove(struct acpi_device *device, int type) 
#ifdef CONFIG_ACPI_PROCFS

	acpi_battery_remove_fs(device);

#endif

	if (battery->bat.dev)

	if (battery->bat.dev) {

		device_remove_file(battery->bat.dev, &alarm_attr);

		power_supply_unregister(&battery->bat);

	}

	mutex_destroy(&battery->lock);

	kfree(battery);

	return 0;