1#ifndef S390_CCWGROUP_H
 2#define S390_CCWGROUP_H
 3
 4struct ccw_device;
 5struct ccw_driver;
 6
 7/**
 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
14 */
15struct ccwgroup_device {
16	unsigned long creator_id;
17	enum {
18		CCWGROUP_OFFLINE,
19		CCWGROUP_ONLINE,
20	} state;
21/* private: */
22	atomic_t onoff;
23	struct mutex reg_mutex;
24/* public: */
25	unsigned int count;
26	struct device	dev;
 
27	struct ccw_device *cdev[0];
28};
29
30/**
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
43 */
44struct 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 *);
55
56	struct device_driver driver;
57};
58
59extern int  ccwgroup_driver_register   (struct ccwgroup_driver *cdriver);
60extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver);
61int ccwgroup_create_dev(struct device *root, struct ccwgroup_driver *gdrv,
62			int num_devices, const char *buf);
 
 
 
63
64extern int ccwgroup_probe_ccwdev(struct ccw_device *cdev);
65extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev);
66
67#define to_ccwgroupdev(x) container_of((x), struct ccwgroup_device, dev)
68#define to_ccwgroupdrv(x) container_of((x), struct ccwgroup_driver, driver)
69#endif

 1#ifndef S390_CCWGROUP_H
 2#define S390_CCWGROUP_H
 3
 4struct ccw_device;
 5struct ccw_driver;
 6
 7/**
 8 * struct ccwgroup_device - ccw group device
 
 9 * @state: online/offline state
10 * @count: number of attached slave devices
11 * @dev: embedded device structure
12 * @cdev: variable number of slave devices, allocated as needed
13 */
14struct ccwgroup_device {
 
15	enum {
16		CCWGROUP_OFFLINE,
17		CCWGROUP_ONLINE,
18	} state;
19/* private: */
20	atomic_t onoff;
21	struct mutex reg_mutex;
22/* public: */
23	unsigned int count;
24	struct device	dev;
25	struct work_struct ungroup_work;
26	struct ccw_device *cdev[0];
27};
28
29/**
30 * struct ccwgroup_driver - driver for ccw group devices
31 * @setup: function called during device creation to setup the device
32 * @remove: function called on remove
33 * @set_online: function called when device is set online
34 * @set_offline: function called when device is set offline
35 * @shutdown: function called when device is shut down
36 * @prepare: prepare for pm state transition
37 * @complete: undo work done in @prepare
38 * @freeze: callback for freezing during hibernation snapshotting
39 * @thaw: undo work done in @freeze
40 * @restore: callback for restoring after hibernation
41 * @driver: embedded driver structure
42 */
43struct ccwgroup_driver {
44	int (*setup) (struct ccwgroup_device *);
45	void (*remove) (struct ccwgroup_device *);
46	int (*set_online) (struct ccwgroup_device *);
47	int (*set_offline) (struct ccwgroup_device *);
48	void (*shutdown)(struct ccwgroup_device *);
49	int (*prepare) (struct ccwgroup_device *);
50	void (*complete) (struct ccwgroup_device *);
51	int (*freeze)(struct ccwgroup_device *);
52	int (*thaw) (struct ccwgroup_device *);
53	int (*restore)(struct ccwgroup_device *);
54
55	struct device_driver driver;
56};
57
58extern int  ccwgroup_driver_register   (struct ccwgroup_driver *cdriver);
59extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver);
60int ccwgroup_create_dev(struct device *root, struct ccwgroup_driver *gdrv,
61			int num_devices, const char *buf);
62
63extern int ccwgroup_set_online(struct ccwgroup_device *gdev);
64extern int ccwgroup_set_offline(struct ccwgroup_device *gdev);
65
66extern int ccwgroup_probe_ccwdev(struct ccw_device *cdev);
67extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev);
68
69#define to_ccwgroupdev(x) container_of((x), struct ccwgroup_device, dev)
70#define to_ccwgroupdrv(x) container_of((x), struct ccwgroup_driver, driver)
71#endif