#include <linux/config.h>
#include <linux/ioport.h>
#include <linux/kobject.h>
+#include <linux/klist.h>
#include <linux/list.h>
#include <linux/types.h>
#include <linux/module.h>
#define BUS_ID_SIZE KOBJ_NAME_LEN
-enum {
- SUSPEND_NOTIFY,
- SUSPEND_SAVE_STATE,
- SUSPEND_DISABLE,
- SUSPEND_POWER_DOWN,
-};
-
-enum {
- RESUME_POWER_ON,
- RESUME_RESTORE_STATE,
- RESUME_ENABLE,
-};
-
struct device;
struct device_driver;
struct class;
struct class_device;
-struct class_simple;
struct bus_type {
- char * name;
+ const char * name;
struct subsystem subsys;
struct kset drivers;
struct kset devices;
+ struct klist klist_devices;
+ struct klist klist_drivers;
struct bus_attribute * bus_attrs;
struct device_attribute * dev_attrs;
extern int bus_register(struct bus_type * bus);
extern void bus_unregister(struct bus_type * bus);
-extern int bus_rescan_devices(struct bus_type * bus);
+extern void bus_rescan_devices(struct bus_type * bus);
extern struct bus_type * get_bus(struct bus_type * bus);
extern void put_bus(struct bus_type * bus);
int bus_for_each_dev(struct bus_type * bus, struct device * start, void * data,
int (*fn)(struct device *, void *));
+struct device * bus_find_device(struct bus_type *bus, struct device *start,
+ void *data, int (*match)(struct device *, void *));
int bus_for_each_drv(struct bus_type * bus, struct device_driver * start,
void * data, int (*fn)(struct device_driver *, void *));
extern void bus_remove_file(struct bus_type *, struct bus_attribute *);
struct device_driver {
- char * name;
+ const char * name;
struct bus_type * bus;
struct completion unloaded;
struct kobject kobj;
- struct list_head devices;
+ struct klist klist_devices;
+ struct klist_node knode_bus;
- struct module * owner;
+ struct module * owner;
int (*probe) (struct device * dev);
- int (*remove) (struct device * dev);
+ int (*remove) (struct device * dev);
void (*shutdown) (struct device * dev);
- int (*suspend) (struct device * dev, pm_message_t state, u32 level);
- int (*resume) (struct device * dev, u32 level);
+ int (*suspend) (struct device * dev, pm_message_t state);
+ int (*resume) (struct device * dev);
};
extern int driver_create_file(struct device_driver *, struct driver_attribute *);
extern void driver_remove_file(struct device_driver *, struct driver_attribute *);
+extern int driver_for_each_device(struct device_driver * drv, struct device * start,
+ void * data, int (*fn)(struct device *, void *));
+struct device * driver_find_device(struct device_driver *drv,
+ struct device *start, void *data,
+ int (*match)(struct device *, void *));
+
/*
* device classes
*/
struct class {
- char * name;
+ const char * name;
+ struct module * owner;
struct subsystem subsys;
struct list_head children;
extern int class_create_file(struct class *, const struct class_attribute *);
extern void class_remove_file(struct class *, const struct class_attribute *);
+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 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.
+ * @devt_attr: for internal use by the driver core only.
+ * @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.
+ * @hotplug: pointer to a hotplug function for this struct class_device. If
+ * set, this will be called instead of the class specific hotplug function.
+ * Only use this if you want to override the default hotplug function, like
+ * when you are nesting class_device structures.
+ */
struct class_device {
struct list_head node;
struct kobject kobj;
struct class * class; /* required */
dev_t devt; /* dev_t, creates the sysfs "dev" */
+ struct class_device_attribute *devt_attr;
+ struct class_device_attribute uevent_attr;
struct device * dev; /* not necessary, but nice to have */
void * class_data; /* class-specific data */
+ struct class_device *parent; /* parent of this child device, if there is one */
+ void (*release)(struct class_device *dev);
+ int (*hotplug)(struct class_device *dev, char **envp,
+ int num_envp, char *buffer, int buffer_size);
char class_id[BUS_ID_SIZE]; /* unique to this class */
};
extern struct class_device * class_device_get(struct class_device *);
extern void class_device_put(struct class_device *);
-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 class_device_create_file(struct class_device *,
- const struct class_device_attribute *);
extern void class_device_remove_file(struct class_device *,
const struct class_device_attribute *);
extern int class_device_create_bin_file(struct class_device *,
struct list_head node;
struct class *class;
- int (*add) (struct class_device *);
- void (*remove) (struct class_device *);
+ int (*add) (struct class_device *, struct class_interface *);
+ void (*remove) (struct class_device *, struct class_interface *);
};
extern int class_interface_register(struct class_interface *);
extern void class_interface_unregister(struct class_interface *);
-/* interface for class simple stuff */
-extern struct class_simple *class_simple_create(struct module *owner, char *name);
-extern void class_simple_destroy(struct class_simple *cs);
-extern struct class_device *class_simple_device_add(struct class_simple *cs, dev_t dev, struct device *device, const char *fmt, ...)
- __attribute__((format(printf,4,5)));
-extern int class_simple_set_hotplug(struct class_simple *,
- int (*hotplug)(struct class_device *dev, char **envp, int num_envp, char *buffer, int buffer_size));
-extern void class_simple_device_remove(dev_t dev);
+extern struct class *class_create(struct module *owner, char *name);
+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,
+ char *fmt, ...)
+ __attribute__((format(printf,5,6)));
+extern void class_device_destroy(struct class *cls, dev_t devt);
+/* interface for exporting device attributes */
+struct device_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct device *dev, struct device_attribute *attr,
+ char *buf);
+ ssize_t (*store)(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count);
+};
+
+#define DEVICE_ATTR(_name,_mode,_show,_store) \
+struct device_attribute dev_attr_##_name = __ATTR(_name,_mode,_show,_store)
+
+extern int device_create_file(struct device *device, struct device_attribute * entry);
+extern void device_remove_file(struct device * dev, struct device_attribute * attr);
struct device {
- struct list_head node; /* node in sibling list */
- struct list_head bus_list; /* node in bus's list */
- struct list_head driver_list;
- struct list_head children;
+ 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 kobject kobj;
char bus_id[BUS_ID_SIZE]; /* position on parent bus */
+ struct device_attribute uevent_attr;
+
+ struct semaphore sem; /* semaphore to synchronize calls to
+ * its driver.
+ */
struct bus_type * bus; /* type of bus device is on */
struct device_driver *driver; /* which driver has allocated this
void (*release)(struct device * dev);
};
-static inline struct device *
-list_to_dev(struct list_head *node)
-{
- return list_entry(node, struct device, node);
-}
-
static inline void *
dev_get_drvdata (struct device *dev)
{
dev->driver_data = data;
}
+static inline int device_is_registered(struct device *dev)
+{
+ return klist_node_attached(&dev->knode_bus);
+}
+
/*
* High level routines for use by the bus drivers
*/
* Manual binding of a device to driver. See drivers/base/bus.c
* for information on use.
*/
-extern int driver_probe_device(struct device_driver * drv, struct device * dev);
extern void device_bind_driver(struct device * dev);
extern void device_release_driver(struct device * dev);
extern int device_attach(struct device * dev);
extern void driver_attach(struct device_driver * drv);
-/* driverfs interface for exporting device attributes */
-
-struct device_attribute {
- struct attribute attr;
- ssize_t (*show)(struct device * dev, char * buf);
- ssize_t (*store)(struct device * dev, const char * buf, size_t count);
-};
-
-#define DEVICE_ATTR(_name,_mode,_show,_store) \
-struct device_attribute dev_attr_##_name = __ATTR(_name,_mode,_show,_store)
-
-
-extern int device_create_file(struct device *device, struct device_attribute * entry);
-extern void device_remove_file(struct device * dev, struct device_attribute * attr);
-
/*
* Platform "fixup" functions - allow the platform to have their say
* about devices and actions that the general device layer doesn't
*/
extern struct device * get_device(struct device * dev);
extern void put_device(struct device * dev);
-extern struct device *device_find(const char *name, struct bus_type *bus);
-
-
-/* drivers/base/platform.c */
-
-struct platform_device {
- char * name;
- u32 id;
- struct device dev;
- u32 num_resources;
- struct resource * resource;
-};
-
-#define to_platform_device(x) container_of((x), struct platform_device, dev)
-
-extern int platform_device_register(struct platform_device *);
-extern void platform_device_unregister(struct platform_device *);
-
-extern struct bus_type platform_bus_type;
-extern struct device platform_bus;
-
-extern struct resource *platform_get_resource(struct platform_device *, unsigned int, unsigned int);
-extern int platform_get_irq(struct platform_device *, unsigned int);
-extern struct resource *platform_get_resource_byname(struct platform_device *, unsigned int, char *);
-extern int platform_get_irq_byname(struct platform_device *, char *);
-extern int platform_add_devices(struct platform_device **, int);
-extern struct platform_device *platform_device_register_simple(char *, unsigned int, struct resource *, unsigned int);
/* drivers/base/power.c */
extern void device_shutdown(void);
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