1 #ifndef S390_CCWGROUP_H
2 #define S390_CCWGROUP_H
8 * struct ccwgroup_device - ccw group device
9 * @creator_id: unique number of the driver
10 * @state: online/offline state
11 * @count: number of attached slave devices
12 * @dev: embedded device structure
13 * @cdev: variable number of slave devices, allocated as needed
15 struct ccwgroup_device {
16 unsigned long creator_id;
23 struct mutex reg_mutex;
27 struct ccw_device *cdev[0];
31 * struct ccwgroup_driver - driver for ccw group devices
32 * @setup: function called during device creation to setup the device
33 * @remove: function called on remove
34 * @set_online: function called when device is set online
35 * @set_offline: function called when device is set offline
36 * @shutdown: function called when device is shut down
37 * @prepare: prepare for pm state transition
38 * @complete: undo work done in @prepare
39 * @freeze: callback for freezing during hibernation snapshotting
40 * @thaw: undo work done in @freeze
41 * @restore: callback for restoring after hibernation
42 * @driver: embedded driver structure
44 struct ccwgroup_driver {
45 int (*setup) (struct ccwgroup_device *);
46 void (*remove) (struct ccwgroup_device *);
47 int (*set_online) (struct ccwgroup_device *);
48 int (*set_offline) (struct ccwgroup_device *);
49 void (*shutdown)(struct ccwgroup_device *);
50 int (*prepare) (struct ccwgroup_device *);
51 void (*complete) (struct ccwgroup_device *);
52 int (*freeze)(struct ccwgroup_device *);
53 int (*thaw) (struct ccwgroup_device *);
54 int (*restore)(struct ccwgroup_device *);
56 struct device_driver driver;
59 extern int ccwgroup_driver_register (struct ccwgroup_driver *cdriver);
60 extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver);
61 int ccwgroup_create_dev(struct device *root, struct ccwgroup_driver *gdrv,
62 int num_devices, const char *buf);
64 extern int ccwgroup_probe_ccwdev(struct ccw_device *cdev);
65 extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev);
67 #define to_ccwgroupdev(x) container_of((x), struct ccwgroup_device, dev)
68 #define to_ccwgroupdrv(x) container_of((x), struct ccwgroup_driver, driver)