projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | |
| b2ffd8e9 CH |
32 | * @max_slaves: maximum number of slave devices |
| 33 | * @driver_id: unique id | |
| 34 | * @probe: function called on probe | |
| 35 | * @remove: function called on remove | |
| 36 | * @set_online: function called when device is set online | |
| 37 | * @set_offline: function called when device is set offline | |
| 01bc8ad1 | 38 | * @shutdown: function called when device is shut down |
| 7e597a21 SO |
39 | * @prepare: prepare for pm state transition |
| 40 | * @complete: undo work done in @prepare | |
| 41 | * @freeze: callback for freezing during hibernation snapshotting | |
| 42 | * @thaw: undo work done in @freeze | |
| 43 | * @restore: callback for restoring after hibernation | |
| b2ffd8e9 CH |
44 | * @driver: embedded driver structure |
| 45 | */ | |
| 1da177e4 | 46 | struct ccwgroup_driver { |
| 1da177e4 LT |
47 | int max_slaves; |
| 48 | unsigned long driver_id; | |
| 49 | ||
| 50 | int (*probe) (struct ccwgroup_device *); | |
| 51 | void (*remove) (struct ccwgroup_device *); | |
| 52 | int (*set_online) (struct ccwgroup_device *); | |
| 53 | int (*set_offline) (struct ccwgroup_device *); | |
| 01bc8ad1 | 54 | void (*shutdown)(struct ccwgroup_device *); |
| 7e597a21 SO |
55 | int (*prepare) (struct ccwgroup_device *); |
| 56 | void (*complete) (struct ccwgroup_device *); | |
| 57 | int (*freeze)(struct ccwgroup_device *); | |
| 58 | int (*thaw) (struct ccwgroup_device *); | |
| 59 | int (*restore)(struct ccwgroup_device *); | |
| 1da177e4 | 60 | |
| b2ffd8e9 | 61 | struct device_driver driver; |
| 1da177e4 LT |
62 | }; |
| 63 | ||
| 64 | extern int ccwgroup_driver_register (struct ccwgroup_driver *cdriver); | |
| 65 | extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver); | |
| 022b660a UB |
66 | int ccwgroup_create_from_string(struct device *root, unsigned int creator_id, |
| 67 | struct ccw_driver *cdrv, int num_devices, | |
| 68 | const char *buf); | |
| 1da177e4 LT |
69 | |
| 70 | extern int ccwgroup_probe_ccwdev(struct ccw_device *cdev); | |
| 71 | extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev); | |
| 72 | ||
| 73 | #define to_ccwgroupdev(x) container_of((x), struct ccwgroup_device, dev) | |
| 74 | #define to_ccwgroupdrv(x) container_of((x), struct ccwgroup_driver, driver) | |
| 75 | #endif |