Initial import

1 files changed, 150 insertions, 0 deletions

diff --git a/drivers/base/base.h b/drivers/base/base.h
new file mode 100644
index 000000000..251c5d30f
--- /dev/null
+++ b/drivers/base/base.h
@@ -0,0 +1,150 @@
+#include <linux/notifier.h>
+
+/**
+ * struct subsys_private - structure to hold the private to the driver core portions of the bus_type/class structure.
+ *
+ * @subsys - the struct kset that defines this subsystem
+ * @devices_kset - the subsystem's 'devices' directory
+ * @interfaces - list of subsystem interfaces associated
+ * @mutex - protect the devices, and interfaces lists.
+ *
+ * @drivers_kset - the list of drivers associated
+ * @klist_devices - the klist to iterate over the @devices_kset
+ * @klist_drivers - the klist to iterate over the @drivers_kset
+ * @bus_notifier - the bus notifier list for anything that cares about things
+ *                 on this bus.
+ * @bus - pointer back to the struct bus_type that this structure is associated
+ *        with.
+ *
+ * @glue_dirs - "glue" directory to put in-between the parent device to
+ *              avoid namespace conflicts
+ * @class - pointer back to the struct class that this structure is associated
+ *          with.
+ *
+ * This structure is the one that is the actual kobject allowing struct
+ * bus_type/class to be statically allocated safely.  Nothing outside of the
+ * driver core should ever touch these fields.
+ */
+struct subsys_private {
+	struct kset subsys;
+	struct kset *devices_kset;
+	struct list_head interfaces;
+	struct mutex mutex;
+
+	struct kset *drivers_kset;
+	struct klist klist_devices;
+	struct klist klist_drivers;
+	struct blocking_notifier_head bus_notifier;
+	unsigned int drivers_autoprobe:1;
+	struct bus_type *bus;
+
+	struct kset glue_dirs;
+	struct class *class;
+};
+#define to_subsys_private(obj) container_of(obj, struct subsys_private, subsys.kobj)
+
+struct driver_private {
+	struct kobject kobj;
+	struct klist klist_devices;
+	struct klist_node knode_bus;
+	struct module_kobject *mkobj;
+	struct device_driver *driver;
+};
+#define to_driver(obj) container_of(obj, struct driver_private, kobj)
+
+/**
+ * struct device_private - structure to hold the private to the driver core portions of the device structure.
+ *
+ * @klist_children - klist containing all children of this device
+ * @knode_parent - node in sibling list
+ * @knode_driver - node in driver list
+ * @knode_bus - node in bus list
+ * @deferred_probe - entry in deferred_probe_list which is used to retry the
+ *	binding of drivers which were unable to get all the resources needed by
+ *	the device; typically because it depends on another driver getting
+ *	probed first.
+ * @device - pointer back to the struct class that this structure is
+ * associated with.
+ *
+ * Nothing outside of the driver core should ever touch these fields.
+ */
+struct device_private {
+	struct klist klist_children;
+	struct klist_node knode_parent;
+	struct klist_node knode_driver;
+	struct klist_node knode_bus;
+	struct list_head deferred_probe;
+	struct device *device;
+};
+#define to_device_private_parent(obj)	\
+	container_of(obj, struct device_private, knode_parent)
+#define to_device_private_driver(obj)	\
+	container_of(obj, struct device_private, knode_driver)
+#define to_device_private_bus(obj)	\
+	container_of(obj, struct device_private, knode_bus)
+
+extern int device_private_init(struct device *dev);
+
+/* initialisation functions */
+extern int devices_init(void);
+extern int buses_init(void);
+extern int classes_init(void);
+extern int firmware_init(void);
+#ifdef CONFIG_SYS_HYPERVISOR
+extern int hypervisor_init(void);
+#else
+static inline int hypervisor_init(void) { return 0; }
+#endif
+extern int platform_bus_init(void);
+extern void cpu_dev_init(void);
+extern void container_dev_init(void);
+
+struct kobject *virtual_device_parent(struct device *dev);
+
+extern int bus_add_device(struct device *dev);
+extern void bus_probe_device(struct device *dev);
+extern void bus_remove_device(struct device *dev);
+
+extern int bus_add_driver(struct device_driver *drv);
+extern void bus_remove_driver(struct device_driver *drv);
+
+extern void driver_detach(struct device_driver *drv);
+extern int driver_probe_device(struct device_driver *drv, struct device *dev);
+extern void driver_deferred_probe_del(struct device *dev);
+static inline int driver_match_device(struct device_driver *drv,
+				      struct device *dev)
+{
+	return drv->bus->match ? drv->bus->match(dev, drv) : 1;
+}
+
+extern int driver_add_groups(struct device_driver *drv,
+			     const struct attribute_group **groups);
+extern void driver_remove_groups(struct device_driver *drv,
+				 const struct attribute_group **groups);
+
+extern int device_add_groups(struct device *dev,
+			     const struct attribute_group **groups);
+extern void device_remove_groups(struct device *dev,
+				 const struct attribute_group **groups);
+
+extern char *make_class_name(const char *name, struct kobject *kobj);
+
+extern int devres_release_all(struct device *dev);
+
+/* /sys/devices directory */
+extern struct kset *devices_kset;
+
+#if defined(CONFIG_MODULES) && defined(CONFIG_SYSFS)
+extern void module_add_driver(struct module *mod, struct device_driver *drv);
+extern void module_remove_driver(struct device_driver *drv);
+#else
+static inline void module_add_driver(struct module *mod,
+				     struct device_driver *drv) { }
+static inline void module_remove_driver(struct device_driver *drv) { }
+#endif
+
+#ifdef CONFIG_DEVTMPFS
+extern int devtmpfs_init(void);
+#else
+static inline int devtmpfs_init(void) { return 0; }
+#endif