summaryrefslogtreecommitdiff
path: root/include/asm-s390/ccwgroup.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-s390/ccwgroup.h
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-s390/ccwgroup.h')
-rw-r--r--include/asm-s390/ccwgroup.h45
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