diff options
Diffstat (limited to 'include/asm-s390/ccwgroup.h')
| -rw-r--r-- | include/asm-s390/ccwgroup.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/include/asm-s390/ccwgroup.h b/include/asm-s390/ccwgroup.h new file mode 100644 index 00000000000..d2f9c0d53a9 --- /dev/null +++ b/include/asm-s390/ccwgroup.h @@ -0,0 +1,45 @@ +#ifndef S390_CCWGROUP_H +#define S390_CCWGROUP_H + +struct ccw_device; +struct ccw_driver; + +struct ccwgroup_device { + unsigned long creator_id; /* unique number of the driver */ + enum { + CCWGROUP_OFFLINE, + CCWGROUP_ONLINE, + } state; + atomic_t onoff; + unsigned int count; /* number of attached slave devices */ + struct device dev; /* master device */ + struct ccw_device *cdev[0]; /* variable number, allocate as needed */ +}; + +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; /* this 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 |