69 lines
1.9 KiB
C
69 lines
1.9 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
|
|
* @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 *);
|
|
|
|
struct device_driver driver;
|
|
};
|
|
|
|
extern int ccwgroup_driver_register (struct ccwgroup_driver *cdriver);
|
|
extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver);
|
|
extern int ccwgroup_create (struct device *root,
|
|
unsigned int creator_id,
|
|
struct ccw_driver *gdrv,
|
|
int argc, char *argv[]);
|
|
|
|
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
|