7e597a21a1
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
#ifndef S390_CCWGROUP_H
|
|
#define S390_CCWGROUP_H
|
|
|
|
struct ccw_device;
|
|
struct ccw_driver;
|
|
|
|
/**
|
|
* struct ccwgroup_device - ccw group device
|
|
* @creator_id: unique number of the driver
|
|
* @state: online/offline state
|
|
* @count: number of attached slave devices
|
|
* @dev: embedded device structure
|
|
* @cdev: variable number of slave devices, allocated as needed
|
|
*/
|
|
struct ccwgroup_device {
|
|
unsigned long creator_id;
|
|
enum {
|
|
CCWGROUP_OFFLINE,
|
|
CCWGROUP_ONLINE,
|
|
} state;
|
|
/* private: */
|
|
atomic_t onoff;
|
|
struct mutex reg_mutex;
|
|
/* public: */
|
|
unsigned int count;
|
|
struct device dev;
|
|
struct ccw_device *cdev[0];
|
|
};
|
|
|
|
/**
|
|
* struct ccwgroup_driver - driver for ccw group devices
|
|
* @owner: driver owner
|
|
* @name: driver name
|
|
* @max_slaves: maximum number of slave devices
|
|
* @driver_id: unique id
|
|
* @probe: function called on probe
|
|
* @remove: function called on remove
|
|
* @set_online: function called when device is set online
|
|
* @set_offline: function called when device is set offline
|
|
* @shutdown: function called when device is shut down
|
|
* @prepare: prepare for pm state transition
|
|
* @complete: undo work done in @prepare
|
|
* @freeze: callback for freezing during hibernation snapshotting
|
|
* @thaw: undo work done in @freeze
|
|
* @restore: callback for restoring after hibernation
|
|
* @driver: embedded driver structure
|
|
*/
|
|
struct ccwgroup_driver {
|
|
struct module *owner;
|
|
char *name;
|
|
int max_slaves;
|
|
unsigned long driver_id;
|
|
|
|
int (*probe) (struct ccwgroup_device *);
|
|
void (*remove) (struct ccwgroup_device *);
|
|
int (*set_online) (struct ccwgroup_device *);
|
|
int (*set_offline) (struct ccwgroup_device *);
|
|
void (*shutdown)(struct ccwgroup_device *);
|
|
int (*prepare) (struct ccwgroup_device *);
|
|
void (*complete) (struct ccwgroup_device *);
|
|
int (*freeze)(struct ccwgroup_device *);
|
|
int (*thaw) (struct ccwgroup_device *);
|
|
int (*restore)(struct ccwgroup_device *);
|
|
|
|
struct device_driver driver;
|
|
};
|
|
|
|
extern int ccwgroup_driver_register (struct ccwgroup_driver *cdriver);
|
|
extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver);
|
|
int ccwgroup_create_from_string(struct device *root, unsigned int creator_id,
|
|
struct ccw_driver *cdrv, int num_devices,
|
|
const char *buf);
|
|
|
|
extern int ccwgroup_probe_ccwdev(struct ccw_device *cdev);
|
|
extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev);
|
|
|
|
#define to_ccwgroupdev(x) container_of((x), struct ccwgroup_device, dev)
|
|
#define to_ccwgroupdrv(x) container_of((x), struct ccwgroup_driver, driver)
|
|
#endif
|