Commit | Line | Data |
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1da177e4 LT |
1 | #ifndef S390_CCWGROUP_H |
2 | #define S390_CCWGROUP_H | |
3 | ||
4 | struct ccw_device; | |
5 | struct ccw_driver; | |
6 | ||
b2ffd8e9 CH |
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 | */ | |
1da177e4 | 15 | struct ccwgroup_device { |
b2ffd8e9 | 16 | unsigned long creator_id; |
1da177e4 LT |
17 | enum { |
18 | CCWGROUP_OFFLINE, | |
19 | CCWGROUP_ONLINE, | |
20 | } state; | |
b2ffd8e9 | 21 | /* private: */ |
1da177e4 | 22 | atomic_t onoff; |
d76123eb | 23 | struct mutex reg_mutex; |
b2ffd8e9 CH |
24 | /* public: */ |
25 | unsigned int count; | |
26 | struct device dev; | |
27 | struct ccw_device *cdev[0]; | |
1da177e4 LT |
28 | }; |
29 | ||
b2ffd8e9 CH |
30 | /** |
31 | * struct ccwgroup_driver - driver for ccw group devices | |
32 | * @owner: driver owner | |
33 | * @name: driver name | |
34 | * @max_slaves: maximum number of slave devices | |
35 | * @driver_id: unique id | |
36 | * @probe: function called on probe | |
37 | * @remove: function called on remove | |
38 | * @set_online: function called when device is set online | |
39 | * @set_offline: function called when device is set offline | |
40 | * @driver: embedded driver structure | |
41 | */ | |
1da177e4 LT |
42 | struct ccwgroup_driver { |
43 | struct module *owner; | |
44 | char *name; | |
45 | int max_slaves; | |
46 | unsigned long driver_id; | |
47 | ||
48 | int (*probe) (struct ccwgroup_device *); | |
49 | void (*remove) (struct ccwgroup_device *); | |
50 | int (*set_online) (struct ccwgroup_device *); | |
51 | int (*set_offline) (struct ccwgroup_device *); | |
52 | ||
b2ffd8e9 | 53 | struct device_driver driver; |
1da177e4 LT |
54 | }; |
55 | ||
56 | extern int ccwgroup_driver_register (struct ccwgroup_driver *cdriver); | |
57 | extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver); | |
58 | extern int ccwgroup_create (struct device *root, | |
59 | unsigned int creator_id, | |
60 | struct ccw_driver *gdrv, | |
61 | int argc, char *argv[]); | |
62 | ||
63 | extern int ccwgroup_probe_ccwdev(struct ccw_device *cdev); | |
64 | extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev); | |
65 | ||
66 | #define to_ccwgroupdev(x) container_of((x), struct ccwgroup_device, dev) | |
67 | #define to_ccwgroupdrv(x) container_of((x), struct ccwgroup_driver, driver) | |
68 | #endif |