#include <linux/kobject.h>
#include <linux/klist.h>
#include <linux/list.h>
+#include <linux/lockdep.h>
#include <linux/compiler.h>
#include <linux/types.h>
#include <linux/module.h>
#include <linux/pm.h>
-#include <asm/semaphore.h>
+#include <linux/semaphore.h>
#include <asm/atomic.h>
#include <asm/device.h>
-#define DEVICE_NAME_SIZE 50
-/* DEVICE_NAME_HALF is really less than half to accommodate slop */
-#define DEVICE_NAME_HALF __stringify(20)
-#define DEVICE_ID_SIZE 32
-#define BUS_ID_SIZE KOBJ_NAME_LEN
-
+#define BUS_ID_SIZE 20
struct device;
+struct device_private;
struct device_driver;
struct driver_private;
struct class;
-struct class_device;
+struct class_private;
struct bus_type;
struct bus_type_private;
int (*resume_early)(struct device *dev);
int (*resume)(struct device *dev);
+ struct dev_pm_ops *pm;
+
struct bus_type_private *p;
};
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,
+ const struct device *b));
/*
* Bus notifiers: Get notified of addition/removal of devices
* and binding/unbinding of drivers to devices.
int (*resume) (struct device *dev);
struct attribute_group **groups;
+ struct dev_pm_ops *pm;
+
struct driver_private *p;
};
const char *name;
struct module *owner;
- struct kset subsys;
- struct list_head children;
- struct list_head devices;
- struct list_head interfaces;
- struct kset class_dirs;
- struct semaphore sem; /* locks children, devices, interfaces */
struct class_attribute *class_attrs;
- struct class_device_attribute *class_dev_attrs;
struct device_attribute *dev_attrs;
+ struct kobject *dev_kobj;
- int (*uevent)(struct class_device *dev, struct kobj_uevent_env *env);
int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env);
- void (*release)(struct class_device *dev);
void (*class_release)(struct class *class);
void (*dev_release)(struct device *dev);
int (*suspend)(struct device *dev, pm_message_t state);
int (*resume)(struct device *dev);
+
+ struct dev_pm_ops *pm;
+ struct class_private *p;
};
-extern int __must_check class_register(struct class *class);
+struct class_dev_iter {
+ struct klist_iter ki;
+ const struct device_type *type;
+};
+
+extern struct kobject *sysfs_dev_block_kobj;
+extern struct kobject *sysfs_dev_char_kobj;
+extern int __must_check __class_register(struct class *class,
+ struct lock_class_key *key);
extern void class_unregister(struct class *class);
-extern int class_for_each_device(struct class *class, void *data,
+
+/* This is a #define to keep the compiler from merging different
+ * instances of the __key variable */
+#define class_register(class) \
+({ \
+ static struct lock_class_key __key; \
+ __class_register(class, &__key); \
+})
+
+extern void class_dev_iter_init(struct class_dev_iter *iter,
+ struct class *class,
+ struct device *start,
+ const struct device_type *type);
+extern struct device *class_dev_iter_next(struct class_dev_iter *iter);
+extern void class_dev_iter_exit(struct class_dev_iter *iter);
+
+extern int class_for_each_device(struct class *class, struct device *start,
+ void *data,
int (*fn)(struct device *dev, void *data));
-extern struct device *class_find_device(struct class *class, void *data,
+extern struct device *class_find_device(struct class *class,
+ struct device *start, void *data,
int (*match)(struct device *, void *));
-extern struct class_device *class_find_child(struct class *class, void *data,
- int (*match)(struct class_device *, void *));
-
struct class_attribute {
struct attribute attr;
extern void class_remove_file(struct class *class,
const struct class_attribute *attr);
-struct class_device_attribute {
- struct attribute attr;
- ssize_t (*show)(struct class_device *, char *buf);
- ssize_t (*store)(struct class_device *, const char *buf, size_t count);
-};
-
-#define CLASS_DEVICE_ATTR(_name, _mode, _show, _store) \
-struct class_device_attribute class_device_attr_##_name = \
- __ATTR(_name, _mode, _show, _store)
-
-extern int __must_check class_device_create_file(struct class_device *,
- const struct class_device_attribute *);
-
-/**
- * struct class_device - class devices
- * @class: pointer to the parent class for this class device. This is required.
- * @devt: for internal use by the driver core only.
- * @node: for internal use by the driver core only.
- * @kobj: for internal use by the driver core only.
- * @groups: optional additional groups to be created
- * @dev: if set, a symlink to the struct device is created in the sysfs
- * directory for this struct class device.
- * @class_data: pointer to whatever you want to store here for this struct
- * class_device. Use class_get_devdata() and class_set_devdata() to get and
- * set this pointer.
- * @parent: pointer to a struct class_device that is the parent of this struct
- * class_device. If NULL, this class_device will show up at the root of the
- * struct class in sysfs (which is probably what you want to have happen.)
- * @release: pointer to a release function for this struct class_device. If
- * set, this will be called instead of the class specific release function.
- * Only use this if you want to override the default release function, like
- * when you are nesting class_device structures.
- * @uevent: pointer to a uevent function for this struct class_device. If
- * set, this will be called instead of the class specific uevent function.
- * Only use this if you want to override the default uevent function, like
- * when you are nesting class_device structures.
- */
-struct class_device {
- struct list_head node;
-
- struct kobject kobj;
- struct class *class;
- dev_t devt;
- struct device *dev;
- void *class_data;
- struct class_device *parent;
- struct attribute_group **groups;
-
- void (*release)(struct class_device *dev);
- int (*uevent)(struct class_device *dev, struct kobj_uevent_env *env);
- char class_id[BUS_ID_SIZE];
-};
-
-static inline void *class_get_devdata(struct class_device *dev)
-{
- return dev->class_data;
-}
-
-static inline void class_set_devdata(struct class_device *dev, void *data)
-{
- dev->class_data = data;
-}
-
-
-extern int __must_check class_device_register(struct class_device *);
-extern void class_device_unregister(struct class_device *);
-extern void class_device_initialize(struct class_device *);
-extern int __must_check class_device_add(struct class_device *);
-extern void class_device_del(struct class_device *);
-
-extern struct class_device *class_device_get(struct class_device *);
-extern void class_device_put(struct class_device *);
-
-extern void class_device_remove_file(struct class_device *,
- const struct class_device_attribute *);
-extern int __must_check class_device_create_bin_file(struct class_device *,
- struct bin_attribute *);
-extern void class_device_remove_bin_file(struct class_device *,
- struct bin_attribute *);
-
struct class_interface {
struct list_head node;
struct class *class;
- int (*add) (struct class_device *, struct class_interface *);
- void (*remove) (struct class_device *, struct class_interface *);
int (*add_dev) (struct device *, struct class_interface *);
void (*remove_dev) (struct device *, struct class_interface *);
};
extern int __must_check class_interface_register(struct class_interface *);
extern void class_interface_unregister(struct class_interface *);
-extern struct class *class_create(struct module *owner, const char *name);
+extern struct class * __must_check __class_create(struct module *owner,
+ const char *name,
+ struct lock_class_key *key);
extern void class_destroy(struct class *cls);
-extern struct class_device *class_device_create(struct class *cls,
- struct class_device *parent,
- dev_t devt,
- struct device *device,
- const char *fmt, ...)
- __attribute__((format(printf, 5, 6)));
-extern void class_device_destroy(struct class *cls, dev_t devt);
+
+/* This is a #define to keep the compiler from merging different
+ * instances of the __key variable */
+#define class_create(owner, name) \
+({ \
+ static struct lock_class_key __key; \
+ __class_create(owner, name, &__key); \
+})
/*
* The type of device, "struct device" is embedded in. A class
struct attribute_group **groups;
int (*uevent)(struct device *dev, struct kobj_uevent_env *env);
void (*release)(struct device *dev);
+
int (*suspend)(struct device *dev, pm_message_t state);
int (*resume)(struct device *dev);
+
+ struct dev_pm_ops *pm;
};
/* interface for exporting device attributes */
};
struct device {
- struct klist klist_children;
- struct klist_node knode_parent; /* node in sibling list */
struct klist_node knode_driver;
struct klist_node knode_bus;
struct device *parent;
+ struct device_private *p;
+
struct kobject kobj;
char bus_id[BUS_ID_SIZE]; /* position on parent bus */
- struct device_type *type;
- unsigned is_registered:1;
unsigned uevent_suppress:1;
+ const char *init_name; /* initial name of the device */
+ struct device_type *type;
struct semaphore sem; /* semaphore to synchronize calls to
* its driver.
/* arch specific additions */
struct dev_archdata archdata;
+ dev_t devt; /* dev_t, creates the sysfs "dev" */
+
spinlock_t devres_lock;
struct list_head devres_head;
- /* class_device migration path */
- struct list_head node;
+ struct klist_node knode_class;
struct class *class;
- dev_t devt; /* dev_t, creates the sysfs "dev" */
struct attribute_group **groups; /* optional groups */
void (*release)(struct device *dev);
};
+/* Get the wakeup routines, which depend on struct device */
+#include <linux/pm_wakeup.h>
+
+static inline const char *dev_name(const struct device *dev)
+{
+ /* will be changed into kobject_name(&dev->kobj) in the near future */
+ return dev->bus_id;
+}
+
+extern int dev_set_name(struct device *dev, const char *name, ...)
+ __attribute__((format(printf, 2, 3)));
+
#ifdef CONFIG_NUMA
static inline int dev_to_node(struct device *dev)
{
}
#endif
-static inline void *dev_get_drvdata(struct device *dev)
+static inline void *dev_get_drvdata(const struct device *dev)
{
return dev->driver_data;
}
static inline int device_is_registered(struct device *dev)
{
- return dev->is_registered;
+ return dev->kobj.state_in_sysfs;
}
void driver_init(void);
/*
* Easy functions for dynamically creating devices on the fly
*/
+extern struct device *device_create_vargs(struct class *cls,
+ struct device *parent,
+ dev_t devt,
+ void *drvdata,
+ const char *fmt,
+ va_list vargs);
extern struct device *device_create(struct class *cls, struct device *parent,
- dev_t devt, const char *fmt, ...)
- __attribute__((format(printf, 4, 5)));
+ dev_t devt, void *drvdata,
+ const char *fmt, ...)
+ __attribute__((format(printf, 5, 6)));
extern void device_destroy(struct class *cls, dev_t devt);
-#ifdef CONFIG_PM_SLEEP
-extern void destroy_suspended_device(struct class *cls, dev_t devt);
-extern void device_pm_schedule_removal(struct device *);
-#else /* !CONFIG_PM_SLEEP */
-static inline void destroy_suspended_device(struct class *cls, dev_t devt)
-{
- device_destroy(cls, devt);
-}
-
-static inline void device_pm_schedule_removal(struct device *dev)
-{
- device_unregister(dev);
-}
-#endif /* !CONFIG_PM_SLEEP */
/*
* Platform "fixup" functions - allow the platform to have their say
extern void sysdev_shutdown(void);
/* debugging and troubleshooting/diagnostic helpers. */
-extern const char *dev_driver_string(struct device *dev);
+extern const char *dev_driver_string(const struct device *dev);
#define dev_printk(level, dev, format, arg...) \
printk(level "%s %s: " format , dev_driver_string(dev) , \
- (dev)->bus_id , ## arg)
+ dev_name(dev) , ## arg)
#define dev_emerg(dev, format, arg...) \
dev_printk(KERN_EMERG , dev , format , ## arg)
#define dev_info(dev, format, arg...) \
dev_printk(KERN_INFO , dev , format , ## arg)
-#ifdef DEBUG
+#if defined(CONFIG_DYNAMIC_PRINTK_DEBUG)
+#define dev_dbg(dev, format, ...) do { \
+ dynamic_dev_dbg(dev, format, ##__VA_ARGS__); \
+ } while (0)
+#elif defined(DEBUG)
#define dev_dbg(dev, format, arg...) \
dev_printk(KERN_DEBUG , dev , format , ## arg)
#else
({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; })
#endif
+/*
+ * dev_WARN() acts like dev_printk(), but with the key difference
+ * of using a WARN/WARN_ON to get the message out, including the
+ * file/line information and a backtrace.
+ */
+#define dev_WARN(dev, format, arg...) \
+ WARN(1, "Device: %s\n" format, dev_driver_string(dev), ## arg);
+
/* Create alias, so I can be autoloaded. */
#define MODULE_ALIAS_CHARDEV(major,minor) \
MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor))
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff