#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
+#ifdef CONFIG_ACPI_PROCFS_POWER
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
+#endif
+#ifdef CONFIG_ACPI_SYSFS_POWER
#include <linux/power_supply.h>
+#endif
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
MODULE_DESCRIPTION("ACPI AC Adapter Driver");
MODULE_LICENSE("GPL");
+#ifdef CONFIG_ACPI_PROCFS_POWER
extern struct proc_dir_entry *acpi_lock_ac_dir(void);
extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
+static int acpi_ac_open_fs(struct inode *inode, struct file *file);
+#endif
static int acpi_ac_add(struct acpi_device *device);
static int acpi_ac_remove(struct acpi_device *device, int type);
-static int acpi_ac_open_fs(struct inode *inode, struct file *file);
+static int acpi_ac_resume(struct acpi_device *device);
const static struct acpi_device_id ac_device_ids[] = {
{"ACPI0003", 0},
.ops = {
.add = acpi_ac_add,
.remove = acpi_ac_remove,
+ .resume = acpi_ac_resume,
},
};
struct acpi_ac {
+#ifdef CONFIG_ACPI_SYSFS_POWER
struct power_supply charger;
+#endif
struct acpi_device * device;
unsigned long state;
};
#define to_acpi_ac(x) container_of(x, struct acpi_ac, charger);
+#ifdef CONFIG_ACPI_PROCFS_POWER
static const struct file_operations acpi_ac_fops = {
.open = acpi_ac_open_fs,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
+#endif
+#ifdef CONFIG_ACPI_SYSFS_POWER
static int get_ac_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
static enum power_supply_property ac_props[] = {
POWER_SUPPLY_PROP_ONLINE,
};
-
+#endif
/* --------------------------------------------------------------------------
AC Adapter Management
-------------------------------------------------------------------------- */
return 0;
}
+#ifdef CONFIG_ACPI_PROCFS_POWER
/* --------------------------------------------------------------------------
FS Interface (/proc)
-------------------------------------------------------------------------- */
return 0;
}
+#endif
/* --------------------------------------------------------------------------
Driver Model
acpi_bus_generate_netlink_event(device->pnp.device_class,
device->dev.bus_id, event,
(u32) ac->state);
+#ifdef CONFIG_ACPI_SYSFS_POWER
kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
+#endif
break;
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
if (result)
goto end;
+#ifdef CONFIG_ACPI_PROCFS_POWER
result = acpi_ac_add_fs(device);
+#endif
if (result)
goto end;
+#ifdef CONFIG_ACPI_SYSFS_POWER
ac->charger.name = acpi_device_bid(device);
ac->charger.type = POWER_SUPPLY_TYPE_MAINS;
ac->charger.properties = ac_props;
ac->charger.num_properties = ARRAY_SIZE(ac_props);
ac->charger.get_property = get_ac_property;
power_supply_register(&ac->device->dev, &ac->charger);
+#endif
status = acpi_install_notify_handler(device->handle,
ACPI_ALL_NOTIFY, acpi_ac_notify,
ac);
end:
if (result) {
+#ifdef CONFIG_ACPI_PROCFS_POWER
acpi_ac_remove_fs(device);
+#endif
kfree(ac);
}
return result;
}
+static int acpi_ac_resume(struct acpi_device *device)
+{
+ struct acpi_ac *ac;
+ unsigned old_state;
+ if (!device || !acpi_driver_data(device))
+ return -EINVAL;
+ ac = acpi_driver_data(device);
+ old_state = ac->state;
+ if (acpi_ac_get_state(ac))
+ return 0;
+#ifdef CONFIG_ACPI_SYSFS_POWER
+ if (old_state != ac->state)
+ kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
+#endif
+ return 0;
+}
+
static int acpi_ac_remove(struct acpi_device *device, int type)
{
acpi_status status = AE_OK;
status = acpi_remove_notify_handler(device->handle,
ACPI_ALL_NOTIFY, acpi_ac_notify);
+#ifdef CONFIG_ACPI_SYSFS_POWER
if (ac->charger.dev)
power_supply_unregister(&ac->charger);
+#endif
+#ifdef CONFIG_ACPI_PROCFS_POWER
acpi_ac_remove_fs(device);
+#endif
kfree(ac);
if (acpi_disabled)
return -ENODEV;
+#ifdef CONFIG_ACPI_PROCFS_POWER
acpi_ac_dir = acpi_lock_ac_dir();
if (!acpi_ac_dir)
return -ENODEV;
+#endif
result = acpi_bus_register_driver(&acpi_ac_driver);
if (result < 0) {
+#ifdef CONFIG_ACPI_PROCFS_POWER
acpi_unlock_ac_dir(acpi_ac_dir);
+#endif
return -ENODEV;
}
acpi_bus_unregister_driver(&acpi_ac_driver);
+#ifdef CONFIG_ACPI_PROCFS_POWER
acpi_unlock_ac_dir(acpi_ac_dir);
+#endif
return;
}