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 000000000000..d2f9c0d53a97
--- /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