Driver-Core: extend devnode callbacks to provide permissions

[safe/jmp/linux-2.6] / include / linux / device.h

diff --git a/include/linux/device.h b/include/linux/device.h
index 5a64775..aca31bf 100644 (file)
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -2,7 +2,8 @@
  * device.h - generic, centralized driver model
  *
  * Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org>
- * Copyright (c) 2004-2007 Greg Kroah-Hartman <gregkh@suse.de>
+ * Copyright (c) 2004-2009 Greg Kroah-Hartman <gregkh@suse.de>
+ * Copyright (c) 2008-2009 Novell Inc.
  *
  * This file is released under the GPLv2
  *
@@ -25,8 +26,6 @@
 #include <asm/atomic.h>
 #include <asm/device.h>
 
-#define BUS_ID_SIZE            20
-
 struct device;
 struct device_private;
 struct device_driver;
@@ -62,11 +61,9 @@ struct bus_type {
        void (*shutdown)(struct device *dev);
 
        int (*suspend)(struct device *dev, pm_message_t state);
-       int (*suspend_late)(struct device *dev, pm_message_t state);
-       int (*resume_early)(struct device *dev);
        int (*resume)(struct device *dev);
 
-       struct dev_pm_ops *pm;
+       const struct dev_pm_ops *pm;
 
        struct bus_type_private *p;
 };
@@ -116,6 +113,8 @@ extern int bus_unregister_notifier(struct bus_type *bus,
 #define BUS_NOTIFY_BOUND_DRIVER                0x00000003 /* driver bound to device */
 #define BUS_NOTIFY_UNBIND_DRIVER       0x00000004 /* driver about to be
                                                      unbound */
+#define BUS_NOTIFY_UNBOUND_DRIVER      0x00000005 /* driver is unbound
+                                                     from the device */
 
 extern struct kset *bus_get_kset(struct bus_type *bus);
 extern struct klist *bus_get_device_klist(struct bus_type *bus);
@@ -132,9 +131,9 @@ struct device_driver {
        void (*shutdown) (struct device *dev);
        int (*suspend) (struct device *dev, pm_message_t state);
        int (*resume) (struct device *dev);
-       struct attribute_group **groups;
+       const struct attribute_group **groups;
 
-       struct dev_pm_ops *pm;
+       const struct dev_pm_ops *pm;
 
        struct driver_private *p;
 };
@@ -194,6 +193,7 @@ struct class {
        struct kobject                  *dev_kobj;
 
        int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env);
+       char *(*devnode)(struct device *dev, mode_t *mode);
 
        void (*class_release)(struct class *class);
        void (*dev_release)(struct device *dev);
@@ -201,7 +201,8 @@ struct class {
        int (*suspend)(struct device *dev, pm_message_t state);
        int (*resume)(struct device *dev);
 
-       struct dev_pm_ops *pm;
+       const struct dev_pm_ops *pm;
+
        struct class_private *p;
 };
 
@@ -224,6 +225,14 @@ extern void class_unregister(struct class *class);
        __class_register(class, &__key);        \
 })
 
+struct class_compat;
+struct class_compat *class_compat_register(const char *name);
+void class_compat_unregister(struct class_compat *cls);
+int class_compat_create_link(struct class_compat *cls, struct device *dev,
+                            struct device *device_link);
+void class_compat_remove_link(struct class_compat *cls, struct device *dev,
+                             struct device *device_link);
+
 extern void class_dev_iter_init(struct class_dev_iter *iter,
                                struct class *class,
                                struct device *start,
@@ -287,14 +296,12 @@ extern void class_destroy(struct class *cls);
  */
 struct device_type {
        const char *name;
-       struct attribute_group **groups;
+       const struct attribute_group **groups;
        int (*uevent)(struct device *dev, struct kobj_uevent_env *env);
+       char *(*devnode)(struct device *dev, mode_t *mode);
        void (*release)(struct device *dev);
 
-       int (*suspend)(struct device *dev, pm_message_t state);
-       int (*resume)(struct device *dev);
-
-       struct dev_pm_ops *pm;
+       const struct dev_pm_ops *pm;
 };
 
 /* interface for exporting device attributes */
@@ -373,7 +380,6 @@ struct device {
        struct device_private   *p;
 
        struct kobject kobj;
-       unsigned                uevent_suppress:1;
        const char              *init_name; /* initial name of the device */
        struct device_type      *type;
 
@@ -384,7 +390,6 @@ struct device {
        struct bus_type *bus;           /* type of bus device is on */
        struct device_driver *driver;   /* which driver has allocated this
                                           device */
-       void            *driver_data;   /* data private to the driver */
        void            *platform_data; /* Platform specific data, device
                                           core doesn't touch it */
        struct dev_pm_info      power;
@@ -415,7 +420,7 @@ struct device {
 
        struct klist_node       knode_class;
        struct class            *class;
-       struct attribute_group  **groups;       /* optional groups */
+       const struct attribute_group **groups;  /* optional groups */
 
        void    (*release)(struct device *dev);
 };
@@ -450,14 +455,14 @@ static inline void set_dev_node(struct device *dev, int node)
 }
 #endif
 
-static inline void *dev_get_drvdata(const struct device *dev)
+static inline unsigned int dev_get_uevent_suppress(const struct device *dev)
 {
-       return dev->driver_data;
+       return dev->kobj.uevent_suppress;
 }
 
-static inline void dev_set_drvdata(struct device *dev, void *data)
+static inline void dev_set_uevent_suppress(struct device *dev, int val)
 {
-       dev->driver_data = data;
+       dev->kobj.uevent_suppress = val;
 }
 
 static inline int device_is_registered(struct device *dev)
@@ -480,7 +485,12 @@ extern int device_for_each_child(struct device *dev, void *data,
 extern struct device *device_find_child(struct device *dev, void *data,
                                int (*match)(struct device *dev, void *data));
 extern int device_rename(struct device *dev, char *new_name);
-extern int device_move(struct device *dev, struct device *new_parent);
+extern int device_move(struct device *dev, struct device *new_parent,
+                      enum dpm_order dpm_order);
+extern const char *device_get_devnode(struct device *dev,
+                                     mode_t *mode, const char **tmp);
+extern void *dev_get_drvdata(const struct device *dev);
+extern void dev_set_drvdata(struct device *dev, void *data);
 
 /*
  * Root device objects for grouping under /sys/devices
@@ -493,6 +503,11 @@ static inline struct device *root_device_register(const char *name)
 }
 extern void root_device_unregister(struct device *root);
 
+static inline void *dev_get_platdata(const struct device *dev)
+{
+       return dev->platform_data;
+}
+
 /*
  * Manual binding of a device to driver. See drivers/base/bus.c
  * for information on use.
@@ -536,6 +551,17 @@ extern int (*platform_notify_remove)(struct device *dev);
 extern struct device *get_device(struct device *dev);
 extern void put_device(struct device *dev);
 
+extern void wait_for_device_probe(void);
+
+#ifdef CONFIG_DEVTMPFS
+extern int devtmpfs_create_node(struct device *dev);
+extern int devtmpfs_delete_node(struct device *dev);
+extern int devtmpfs_mount(const char *mountpoint);
+#else
+static inline int devtmpfs_create_node(struct device *dev) { return 0; }
+static inline int devtmpfs_delete_node(struct device *dev) { return 0; }
+static inline int devtmpfs_mount(const char *mountpoint) { return 0; }
+#endif
 
 /* drivers/base/power/shutdown.c */
 extern void device_shutdown(void);
@@ -567,7 +593,7 @@ extern const char *dev_driver_string(const struct device *dev);
 #if defined(DEBUG)
 #define dev_dbg(dev, format, arg...)           \
        dev_printk(KERN_DEBUG , dev , format , ## arg)
-#elif defined(CONFIG_DYNAMIC_PRINTK_DEBUG)
+#elif defined(CONFIG_DYNAMIC_DEBUG)
 #define dev_dbg(dev, format, ...) do { \
        dynamic_dev_dbg(dev, format, ##__VA_ARGS__); \
        } while (0)