Driver core: add ability for classes to handle devices properly

[pandora-kernel.git] / include / linux / device.h

diff --git a/include/linux/device.h b/include/linux/device.h
index e8e53b9..3122bd2 100644 (file)
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -11,7 +11,6 @@
 #ifndef _DEVICE_H_
 #define _DEVICE_H_
 
-#include <linux/config.h>
 #include <linux/ioport.h>
 #include <linux/kobject.h>
 #include <linux/klist.h>
@@ -52,8 +51,11 @@ struct bus_type {
        int             (*probe)(struct device * dev);
        int             (*remove)(struct device * dev);
        void            (*shutdown)(struct device * dev);
-       int             (*suspend)(struct device * dev, pm_message_t state);
-       int             (*resume)(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);
 };
 
 extern int bus_register(struct bus_type * bus);
@@ -61,11 +63,6 @@ extern void bus_unregister(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);
-
-extern struct bus_type * find_bus(char * name);
-
 /* iterator helpers for buses */
 
 int bus_for_each_dev(struct bus_type * bus, struct device * start, void * data,
@@ -148,25 +145,30 @@ struct class {
 
        struct subsystem        subsys;
        struct list_head        children;
+       struct list_head        devices;
        struct list_head        interfaces;
        struct semaphore        sem;    /* locks both the children and interfaces lists */
 
        struct class_attribute          * class_attrs;
        struct class_device_attribute   * class_dev_attrs;
+       struct device_attribute         * dev_attrs;
 
        int     (*uevent)(struct class_device *dev, char **envp,
                           int num_envp, char *buffer, int buffer_size);
+       int     (*dev_uevent)(struct device *dev, char **envp, int num_envp,
+                               char *buffer, int buffer_size);
 
        void    (*release)(struct class_device *dev);
        void    (*class_release)(struct class *class);
+       void    (*dev_release)(struct device *dev);
+
+       int     (*suspend)(struct device *, pm_message_t state);
+       int     (*resume)(struct device *);
 };
 
 extern int class_register(struct class *);
 extern void class_unregister(struct class *);
 
-extern struct class * class_get(struct class *);
-extern void class_put(struct class *);
-
 
 struct class_attribute {
        struct attribute        attr;
@@ -279,13 +281,13 @@ struct class_interface {
 extern int class_interface_register(struct class_interface *);
 extern void class_interface_unregister(struct class_interface *);
 
-extern struct class *class_create(struct module *owner, char *name);
+extern struct class *class_create(struct module *owner, const 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, ...)
+                                               const char *fmt, ...)
                                        __attribute__((format(printf,5,6)));
 extern void class_device_destroy(struct class *cls, dev_t devt);
 
@@ -314,6 +316,7 @@ struct device {
        struct kobject kobj;
        char    bus_id[BUS_ID_SIZE];    /* position on parent bus */
        struct device_attribute uevent_attr;
+       struct device_attribute *devt_attr;
 
        struct semaphore        sem;    /* semaphore to synchronize calls to
                                         * its driver.
@@ -341,6 +344,12 @@ struct device {
        struct dma_coherent_mem *dma_mem; /* internal for coherent mem
                                             override */
 
+       /* class_device migration path */
+       struct list_head        node;
+       struct class            *class;         /* optional*/
+       dev_t                   devt;           /* dev_t, creates the sysfs "dev" */
+       struct attribute_group  **groups;       /* optional groups */
+
        void    (*release)(struct device * dev);
 };
 
@@ -382,6 +391,13 @@ extern int  device_attach(struct device * dev);
 extern void driver_attach(struct device_driver * drv);
 extern void device_reprobe(struct device *dev);
 
+/*
+ * Easy functions for dynamically creating devices on the fly
+ */
+extern struct device *device_create(struct class *cls, struct device *parent,
+                                   dev_t devt, const char *fmt, ...)
+                                   __attribute__((format(printf,4,5)));
+extern void device_destroy(struct class *cls, dev_t devt);
 
 /*
  * Platform "fixup" functions - allow the platform to have their say
@@ -411,8 +427,9 @@ extern int firmware_register(struct subsystem *);
 extern void firmware_unregister(struct subsystem *);
 
 /* debugging and troubleshooting/diagnostic helpers. */
+extern const char *dev_driver_string(struct device *dev);
 #define dev_printk(level, dev, format, arg...) \
-       printk(level "%s %s: " format , (dev)->driver ? (dev)->driver->name : "" , (dev)->bus_id , ## arg)
+       printk(level "%s %s: " format , dev_driver_string(dev) , (dev)->bus_id , ## arg)
 
 #ifdef DEBUG
 #define dev_dbg(dev, format, arg...)           \