* @iommu_ops: IOMMU specific operations for this bus, used to attach IOMMU
* driver implementations to a bus and allow the driver to do
* bus-specific setup
- * @p: The private data of the driver core, only the driver core can
- * touch this.
* @lock_key: Lock class key for use by the lock validator
* @need_parent_lock: When probing or removing a device on this bus, the
* device core should lock the device's parent.
const struct attribute_group **drv_groups;
int (*match)(struct device *dev, struct device_driver *drv);
- int (*uevent)(struct device *dev, struct kobj_uevent_env *env);
+ int (*uevent)(const struct device *dev, struct kobj_uevent_env *env);
int (*probe)(struct device *dev);
void (*sync_state)(struct device *dev);
void (*remove)(struct device *dev);
const struct iommu_ops *iommu_ops;
- struct subsys_private *p;
- struct lock_class_key lock_key;
-
bool need_parent_lock;
};
#define BUS_ATTR_WO(_name) \
struct bus_attribute bus_attr_##_name = __ATTR_WO(_name)
-extern int __must_check bus_create_file(struct bus_type *,
- struct bus_attribute *);
-extern void bus_remove_file(struct bus_type *, struct bus_attribute *);
+int __must_check bus_create_file(const struct bus_type *bus, struct bus_attribute *attr);
+void bus_remove_file(const struct bus_type *bus, struct bus_attribute *attr);
/* Generic device matching functions that all busses can use to match with */
int device_match_name(struct device *dev, const void *name);
int device_match_any(struct device *dev, const void *unused);
/* iterator helpers for buses */
-struct subsys_dev_iter {
- struct klist_iter ki;
- const struct device_type *type;
-};
-void subsys_dev_iter_init(struct subsys_dev_iter *iter,
- struct bus_type *subsys,
- struct device *start,
- const struct device_type *type);
-struct device *subsys_dev_iter_next(struct subsys_dev_iter *iter);
-void subsys_dev_iter_exit(struct subsys_dev_iter *iter);
-
-int bus_for_each_dev(struct bus_type *bus, struct device *start, void *data,
+int bus_for_each_dev(const struct bus_type *bus, struct device *start, void *data,
int (*fn)(struct device *dev, void *data));
-struct device *bus_find_device(struct bus_type *bus, struct device *start,
+struct device *bus_find_device(const struct bus_type *bus, struct device *start,
const void *data,
int (*match)(struct device *dev, const void *data));
/**
* @start: Device to begin with
* @name: name of the device to match
*/
-static inline struct device *bus_find_device_by_name(struct bus_type *bus,
+static inline struct device *bus_find_device_by_name(const struct bus_type *bus,
struct device *start,
const char *name)
{
* @np: of_node of the device to match.
*/
static inline struct device *
-bus_find_device_by_of_node(struct bus_type *bus, const struct device_node *np)
+bus_find_device_by_of_node(const struct bus_type *bus, const struct device_node *np)
{
return bus_find_device(bus, NULL, np, device_match_of_node);
}
* @fwnode: fwnode of the device to match.
*/
static inline struct device *
-bus_find_device_by_fwnode(struct bus_type *bus, const struct fwnode_handle *fwnode)
+bus_find_device_by_fwnode(const struct bus_type *bus, const struct fwnode_handle *fwnode)
{
return bus_find_device(bus, NULL, fwnode, device_match_fwnode);
}
* @bus: bus type
* @devt: device type of the device to match.
*/
-static inline struct device *bus_find_device_by_devt(struct bus_type *bus,
+static inline struct device *bus_find_device_by_devt(const struct bus_type *bus,
dev_t devt)
{
return bus_find_device(bus, NULL, &devt, device_match_devt);
* @cur: device to begin the search with.
*/
static inline struct device *
-bus_find_next_device(struct bus_type *bus,struct device *cur)
+bus_find_next_device(const struct bus_type *bus,struct device *cur)
{
return bus_find_device(bus, cur, NULL, device_match_any);
}
* @adev: ACPI COMPANION device to match.
*/
static inline struct device *
-bus_find_device_by_acpi_dev(struct bus_type *bus, const struct acpi_device *adev)
+bus_find_device_by_acpi_dev(const struct bus_type *bus, const struct acpi_device *adev)
{
return bus_find_device(bus, NULL, adev, device_match_acpi_dev);
}
#else
static inline struct device *
-bus_find_device_by_acpi_dev(struct bus_type *bus, const void *adev)
+bus_find_device_by_acpi_dev(const struct bus_type *bus, const void *adev)
{
return NULL;
}
#endif
-struct device *subsys_find_device_by_id(struct bus_type *bus, unsigned int id,
- struct device *hint);
-int bus_for_each_drv(struct bus_type *bus, struct device_driver *start,
+int bus_for_each_drv(const struct bus_type *bus, struct device_driver *start,
void *data, int (*fn)(struct device_driver *, void *));
void bus_sort_breadthfirst(struct bus_type *bus,
int (*compare)(const struct device *a,
extern int bus_unregister_notifier(struct bus_type *bus,
struct notifier_block *nb);
-/* All 4 notifers below get called with the target struct device *
- * as an argument. Note that those functions are likely to be called
- * with the device lock held in the core, so be careful.
+/**
+ * enum bus_notifier_event - Bus Notifier events that have happened
+ * @BUS_NOTIFY_ADD_DEVICE: device is added to this bus
+ * @BUS_NOTIFY_DEL_DEVICE: device is about to be removed from this bus
+ * @BUS_NOTIFY_REMOVED_DEVICE: device is successfully removed from this bus
+ * @BUS_NOTIFY_BIND_DRIVER: a driver is about to be bound to this device on this bus
+ * @BUS_NOTIFY_BOUND_DRIVER: a driver is successfully bound to this device on this bus
+ * @BUS_NOTIFY_UNBIND_DRIVER: a driver is about to be unbound from this device on this bus
+ * @BUS_NOTIFY_UNBOUND_DRIVER: a driver is successfully unbound from this device on this bus
+ * @BUS_NOTIFY_DRIVER_NOT_BOUND: a driver failed to be bound to this device on this bus
+ *
+ * These are the value passed to a bus notifier when a specific event happens.
+ *
+ * Note that bus notifiers are likely to be called with the device lock already
+ * held by the driver core, so be careful in any notifier callback as to what
+ * you do with the device structure.
+ *
+ * All bus notifiers are called with the target struct device * as an argument.
*/
-#define BUS_NOTIFY_ADD_DEVICE 0x00000001 /* device added */
-#define BUS_NOTIFY_DEL_DEVICE 0x00000002 /* device to be removed */
-#define BUS_NOTIFY_REMOVED_DEVICE 0x00000003 /* device removed */
-#define BUS_NOTIFY_BIND_DRIVER 0x00000004 /* driver about to be
- bound */
-#define BUS_NOTIFY_BOUND_DRIVER 0x00000005 /* driver bound to device */
-#define BUS_NOTIFY_UNBIND_DRIVER 0x00000006 /* driver about to be
- unbound */
-#define BUS_NOTIFY_UNBOUND_DRIVER 0x00000007 /* driver is unbound
- from the device */
-#define BUS_NOTIFY_DRIVER_NOT_BOUND 0x00000008 /* driver fails to be bound */
+enum bus_notifier_event {
+ BUS_NOTIFY_ADD_DEVICE,
+ BUS_NOTIFY_DEL_DEVICE,
+ BUS_NOTIFY_REMOVED_DEVICE,
+ BUS_NOTIFY_BIND_DRIVER,
+ BUS_NOTIFY_BOUND_DRIVER,
+ BUS_NOTIFY_UNBIND_DRIVER,
+ BUS_NOTIFY_UNBOUND_DRIVER,
+ BUS_NOTIFY_DRIVER_NOT_BOUND,
+};
extern struct kset *bus_get_kset(struct bus_type *bus);
-extern struct klist *bus_get_device_klist(struct bus_type *bus);
#endif
projects / linux-2.6-microblaze.git / blobdiff