X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Flinux%2Fdevice.h;h=47f343c7bddaaca551c8fb2114160fb5f362c4e1;hb=216773a787c3c46ef26bf1742c1fdba37d26be45;hp=2d9dc358c02752b8f2d752c923f069af1a817e7b;hpb=465ae641e4a3e5028aa9c85d3843259aa28a22ce;p=safe%2Fjmp%2Flinux-2.6 diff --git a/include/linux/device.h b/include/linux/device.h index 2d9dc35..47f343c 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -2,6 +2,7 @@ * device.h - generic, centralized driver model * * Copyright (c) 2001-2003 Patrick Mochel + * Copyright (c) 2004-2007 Greg Kroah-Hartman * * This file is released under the GPLv2 * @@ -15,69 +16,83 @@ #include #include #include +#include #include #include #include #include -#include +#include #include #include -#define DEVICE_NAME_SIZE 50 -#define DEVICE_NAME_HALF __stringify(20) /* Less than half to accommodate slop */ -#define DEVICE_ID_SIZE 32 -#define BUS_ID_SIZE KOBJ_NAME_LEN - +#define BUS_ID_SIZE 20 struct device; struct device_driver; +struct driver_private; struct class; -struct class_device; +struct class_private; +struct bus_type; +struct bus_type_private; + +struct bus_attribute { + struct attribute attr; + ssize_t (*show)(struct bus_type *bus, char *buf); + ssize_t (*store)(struct bus_type *bus, const char *buf, size_t count); +}; + +#define BUS_ATTR(_name, _mode, _show, _store) \ +struct bus_attribute bus_attr_##_name = __ATTR(_name, _mode, _show, _store) + +extern int __must_check bus_create_file(struct bus_type *, + struct bus_attribute *); +extern void bus_remove_file(struct bus_type *, struct bus_attribute *); struct bus_type { - const char * name; - - struct subsystem subsys; - struct kset drivers; - struct kset devices; - struct klist klist_devices; - struct klist klist_drivers; - - struct blocking_notifier_head bus_notifier; - - struct bus_attribute * bus_attrs; - struct device_attribute * dev_attrs; - struct driver_attribute * drv_attrs; - - int (*match)(struct device * dev, struct device_driver * drv); - int (*uevent)(struct device *dev, char **envp, - int num_envp, char *buffer, int buffer_size); - 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 (*suspend_late)(struct device * dev, pm_message_t state); - int (*resume_early)(struct device * dev); - int (*resume)(struct device * dev); + const char *name; + struct bus_attribute *bus_attrs; + struct device_attribute *dev_attrs; + struct driver_attribute *drv_attrs; + + int (*match)(struct device *dev, struct device_driver *drv); + int (*uevent)(struct device *dev, struct kobj_uevent_env *env); + 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 (*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; + + struct bus_type_private *p; }; -extern int __must_check bus_register(struct bus_type * bus); -extern void bus_unregister(struct bus_type * bus); +extern int __must_check bus_register(struct bus_type *bus); +extern void bus_unregister(struct bus_type *bus); -extern int __must_check bus_rescan_devices(struct bus_type * bus); +extern int __must_check bus_rescan_devices(struct bus_type *bus); /* iterator helpers for buses */ -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_dev(struct bus_type *bus, struct device *start, void *data, + int (*fn)(struct device *dev, void *data)); +struct device *bus_find_device(struct bus_type *bus, struct device *start, + void *data, + int (*match)(struct device *dev, void *data)); +struct device *bus_find_device_by_name(struct bus_type *bus, + struct device *start, + const char *name); int __must_check bus_for_each_drv(struct bus_type *bus, - struct device_driver *start, void *data, - int (*fn)(struct device_driver *, void *)); + 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. @@ -101,215 +116,145 @@ extern int bus_unregister_notifier(struct bus_type *bus, #define BUS_NOTIFY_UNBIND_DRIVER 0x00000004 /* driver about to be unbound */ -/* driverfs interface for exporting bus attributes */ - -struct bus_attribute { - struct attribute attr; - ssize_t (*show)(struct bus_type *, char * buf); - ssize_t (*store)(struct bus_type *, const char * buf, size_t count); -}; - -#define BUS_ATTR(_name,_mode,_show,_store) \ -struct bus_attribute bus_attr_##_name = __ATTR(_name,_mode,_show,_store) - -extern int __must_check bus_create_file(struct bus_type *, - struct bus_attribute *); -extern void bus_remove_file(struct bus_type *, struct bus_attribute *); +extern struct kset *bus_get_kset(struct bus_type *bus); +extern struct klist *bus_get_device_klist(struct bus_type *bus); struct device_driver { - const char * name; - struct bus_type * bus; + const char *name; + struct bus_type *bus; - struct completion unloaded; - struct kobject kobj; - struct klist klist_devices; - struct klist_node knode_bus; + struct module *owner; + const char *mod_name; /* used for built-in modules */ - struct module * owner; + 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); + struct attribute_group **groups; - 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); + struct dev_pm_ops *pm; - unsigned int multithread_probe:1; + struct driver_private *p; }; -extern int __must_check driver_register(struct device_driver * drv); -extern void driver_unregister(struct device_driver * drv); +extern int __must_check driver_register(struct device_driver *drv); +extern void driver_unregister(struct device_driver *drv); -extern struct device_driver * get_driver(struct device_driver * drv); -extern void put_driver(struct device_driver * drv); -extern struct device_driver *driver_find(const char *name, struct bus_type *bus); +extern struct device_driver *get_driver(struct device_driver *drv); +extern void put_driver(struct device_driver *drv); +extern struct device_driver *driver_find(const char *name, + struct bus_type *bus); extern int driver_probe_done(void); +extern int wait_for_device_probe(void); -/* driverfs interface for exporting driver attributes */ + +/* sysfs interface for exporting driver attributes */ struct driver_attribute { - struct attribute attr; - ssize_t (*show)(struct device_driver *, char * buf); - ssize_t (*store)(struct device_driver *, const char * buf, size_t count); + struct attribute attr; + ssize_t (*show)(struct device_driver *driver, char *buf); + ssize_t (*store)(struct device_driver *driver, const char *buf, + size_t count); }; -#define DRIVER_ATTR(_name,_mode,_show,_store) \ -struct driver_attribute driver_attr_##_name = __ATTR(_name,_mode,_show,_store) +#define DRIVER_ATTR(_name, _mode, _show, _store) \ +struct driver_attribute driver_attr_##_name = \ + __ATTR(_name, _mode, _show, _store) -extern int __must_check driver_create_file(struct device_driver *, - struct driver_attribute *); -extern void driver_remove_file(struct device_driver *, struct driver_attribute *); +extern int __must_check driver_create_file(struct device_driver *driver, + struct driver_attribute *attr); +extern void driver_remove_file(struct device_driver *driver, + struct driver_attribute *attr); -extern int __must_check 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 *)); +extern int __must_check driver_add_kobj(struct device_driver *drv, + struct kobject *kobj, + const char *fmt, ...); + +extern int __must_check driver_for_each_device(struct device_driver *drv, + struct device *start, + void *data, + int (*fn)(struct device *dev, + void *)); +struct device *driver_find_device(struct device_driver *drv, + struct device *start, void *data, + int (*match)(struct device *dev, void *data)); /* * device classes */ struct class { - const char * name; - struct module * owner; - - 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 kobject *virtual_dir; + const char *name; + struct module *owner; - struct class_attribute * class_attrs; - struct class_device_attribute * class_dev_attrs; - struct device_attribute * dev_attrs; + struct class_attribute *class_attrs; + struct device_attribute *dev_attrs; + struct kobject *dev_kobj; - 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); + 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); + 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 __must_check class_register(struct class *); -extern void class_unregister(struct class *); + int (*suspend)(struct device *dev, pm_message_t state); + int (*resume)(struct device *dev); - -struct class_attribute { - struct attribute attr; - ssize_t (*show)(struct class *, char * buf); - ssize_t (*store)(struct class *, const char * buf, size_t count); + struct dev_pm_ops *pm; + struct class_private *p; }; -#define CLASS_ATTR(_name,_mode,_show,_store) \ -struct class_attribute class_attr_##_name = __ATTR(_name,_mode,_show,_store) - -extern int __must_check 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); +struct class_dev_iter { + struct klist_iter ki; + const struct device_type *type; }; -#define CLASS_DEVICE_ATTR(_name,_mode,_show,_store) \ -struct class_device_attribute class_device_attr_##_name = \ - __ATTR(_name,_mode,_show,_store) +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); + +/* 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, + struct device *start, void *data, + int (*match)(struct device *, void *)); -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. - * @devt_attr: 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; /* 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 */ - struct attribute_group ** groups; /* optional groups */ - - void (*release)(struct class_device *dev); - int (*uevent)(struct class_device *dev, char **envp, - int num_envp, char *buffer, int buffer_size); - char class_id[BUS_ID_SIZE]; /* unique to this class */ +struct class_attribute { + struct attribute attr; + ssize_t (*show)(struct class *class, char *buf); + ssize_t (*store)(struct class *class, const char *buf, size_t count); }; -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 int class_device_rename(struct class_device *, char *); +#define CLASS_ATTR(_name, _mode, _show, _store) \ +struct class_attribute class_attr_##_name = __ATTR(_name, _mode, _show, _store) -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 *); +extern int __must_check class_create_file(struct class *class, + const struct class_attribute *attr); +extern void class_remove_file(struct class *class, + const struct class_attribute *attr); 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 *); }; @@ -317,15 +262,39 @@ 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 + * or bus can contain devices of different types + * like "partitions" and "disks", "mouse" and "event". + * This identifies the device type and carries type-specific + * information, equivalent to the kobj_type of a kobject. + * If "name" is specified, the uevent will contain it in + * the DEVTYPE variable. + */ +struct device_type { + const char *name; + 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_attribute { @@ -336,34 +305,85 @@ struct device_attribute { const char *buf, size_t count); }; -#define DEVICE_ATTR(_name,_mode,_show,_store) \ -struct device_attribute dev_attr_##_name = __ATTR(_name,_mode,_show,_store) +#define DEVICE_ATTR(_name, _mode, _show, _store) \ +struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store) extern int __must_check device_create_file(struct device *device, - struct device_attribute * entry); -extern void device_remove_file(struct device * dev, struct device_attribute * attr); + struct device_attribute *entry); +extern void device_remove_file(struct device *dev, + struct device_attribute *attr); extern int __must_check device_create_bin_file(struct device *dev, struct bin_attribute *attr); extern void device_remove_bin_file(struct device *dev, struct bin_attribute *attr); +extern int device_schedule_callback_owner(struct device *dev, + void (*func)(struct device *dev), struct module *owner); + +/* This is a macro to avoid include problems with THIS_MODULE */ +#define device_schedule_callback(dev, func) \ + device_schedule_callback_owner(dev, func, THIS_MODULE) + +/* device resource management */ +typedef void (*dr_release_t)(struct device *dev, void *res); +typedef int (*dr_match_t)(struct device *dev, void *res, void *match_data); + +#ifdef CONFIG_DEBUG_DEVRES +extern void *__devres_alloc(dr_release_t release, size_t size, gfp_t gfp, + const char *name); +#define devres_alloc(release, size, gfp) \ + __devres_alloc(release, size, gfp, #release) +#else +extern void *devres_alloc(dr_release_t release, size_t size, gfp_t gfp); +#endif +extern void devres_free(void *res); +extern void devres_add(struct device *dev, void *res); +extern void *devres_find(struct device *dev, dr_release_t release, + dr_match_t match, void *match_data); +extern void *devres_get(struct device *dev, void *new_res, + dr_match_t match, void *match_data); +extern void *devres_remove(struct device *dev, dr_release_t release, + dr_match_t match, void *match_data); +extern int devres_destroy(struct device *dev, dr_release_t release, + dr_match_t match, void *match_data); + +/* devres group */ +extern void * __must_check devres_open_group(struct device *dev, void *id, + gfp_t gfp); +extern void devres_close_group(struct device *dev, void *id); +extern void devres_remove_group(struct device *dev, void *id); +extern int devres_release_group(struct device *dev, void *id); + +/* managed kzalloc/kfree for device drivers, no kmalloc, always use kzalloc */ +extern void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp); +extern void devm_kfree(struct device *dev, void *p); + +struct device_dma_parameters { + /* + * a low level driver may set these to teach IOMMU code about + * sg limitations. + */ + unsigned int max_segment_size; + unsigned long segment_boundary_mask; +}; + struct device { struct klist klist_children; - struct klist_node knode_parent; /* node in sibling list */ + struct klist_node knode_parent; /* node in sibling list */ struct klist_node knode_driver; struct klist_node knode_bus; - struct device * parent; + struct device *parent; struct kobject kobj; char bus_id[BUS_ID_SIZE]; /* position on parent bus */ - unsigned is_registered:1; - struct device_attribute uevent_attr; - struct device_attribute *devt_attr; + 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. */ - struct bus_type * bus; /* type of bus device is on */ + 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 */ @@ -371,6 +391,9 @@ struct device { core doesn't touch it */ struct dev_pm_info power; +#ifdef CONFIG_NUMA + int numa_node; /* NUMA node this device is close to */ +#endif u64 *dma_mask; /* dma mask (if dma'able device) */ u64 coherent_dma_mask;/* Like dma_mask, but for alloc_coherent mappings as @@ -378,6 +401,8 @@ struct device { 64 bit addresses for consistent allocations such descriptors. */ + struct device_dma_parameters *dma_parms; + struct list_head dma_pools; /* dma pools (if dma'ble) */ struct dma_coherent_mem *dma_mem; /* internal for coherent mem @@ -385,60 +410,115 @@ struct device { /* arch specific additions */ struct dev_archdata archdata; - /* class_device migration path */ - struct list_head node; - struct class *class; /* optional*/ - dev_t devt; /* dev_t, creates the sysfs "dev" */ + dev_t devt; /* dev_t, creates the sysfs "dev" */ + + spinlock_t devres_lock; + struct list_head devres_head; + + struct klist_node knode_class; + struct class *class; struct attribute_group **groups; /* optional groups */ - void (*release)(struct device * dev); + void (*release)(struct device *dev); }; -static inline void * -dev_get_drvdata (struct device *dev) +/* Get the wakeup routines, which depend on struct device */ +#include + +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) +{ + return dev->numa_node; +} +static inline void set_dev_node(struct device *dev, int node) +{ + dev->numa_node = node; +} +#else +static inline int dev_to_node(struct device *dev) +{ + return -1; +} +static inline void set_dev_node(struct device *dev, int node) +{ +} +#endif + +static inline void *dev_get_drvdata(const struct device *dev) { return dev->driver_data; } -static inline void -dev_set_drvdata (struct device *dev, void *data) +static inline void dev_set_drvdata(struct device *dev, void *data) { dev->driver_data = data; } static inline int device_is_registered(struct device *dev) { - return dev->is_registered; + return dev->kobj.state_in_sysfs; } +void driver_init(void); + /* * High level routines for use by the bus drivers */ -extern int __must_check device_register(struct device * dev); -extern void device_unregister(struct device * dev); -extern void device_initialize(struct device * dev); -extern int __must_check device_add(struct device * dev); -extern void device_del(struct device * dev); -extern int device_for_each_child(struct device *, void *, - int (*fn)(struct device *, void *)); +extern int __must_check device_register(struct device *dev); +extern void device_unregister(struct device *dev); +extern void device_initialize(struct device *dev); +extern int __must_check device_add(struct device *dev); +extern void device_del(struct device *dev); +extern int device_for_each_child(struct device *dev, void *data, + int (*fn)(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); + +/* + * Root device objects for grouping under /sys/devices + */ +extern struct device *__root_device_register(const char *name, + struct module *owner); +static inline struct device *root_device_register(const char *name) +{ + return __root_device_register(name, THIS_MODULE); +} +extern void root_device_unregister(struct device *root); /* * Manual binding of a device to driver. See drivers/base/bus.c * for information on use. */ extern int __must_check device_bind_driver(struct device *dev); -extern void device_release_driver(struct device * dev); -extern int __must_check device_attach(struct device * dev); +extern void device_release_driver(struct device *dev); +extern int __must_check device_attach(struct device *dev); extern int __must_check driver_attach(struct device_driver *drv); extern int __must_check device_reprobe(struct device *dev); /* * 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); /* @@ -447,47 +527,73 @@ extern void device_destroy(struct class *cls, dev_t devt); * know about. */ /* Notify platform of device discovery */ -extern int (*platform_notify)(struct device * dev); +extern int (*platform_notify)(struct device *dev); -extern int (*platform_notify_remove)(struct device * dev); +extern int (*platform_notify_remove)(struct device *dev); /** * get_device - atomically increment the reference count for the device. * */ -extern struct device * get_device(struct device * dev); -extern void put_device(struct device * dev); +extern struct device *get_device(struct device *dev); +extern void put_device(struct device *dev); /* drivers/base/power/shutdown.c */ extern void device_shutdown(void); - -/* drivers/base/firmware.c */ -extern int __must_check firmware_register(struct subsystem *); -extern void firmware_unregister(struct subsystem *); +/* drivers/base/sys.c */ +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) - -#ifdef DEBUG -#define dev_dbg(dev, format, arg...) \ - dev_printk(KERN_DEBUG , dev , format , ## arg) -#else -#define dev_dbg(dev, format, arg...) do { (void)(dev); } while (0) -#endif - + printk(level "%s %s: " format , dev_driver_string(dev) , \ + dev_name(dev) , ## arg) + +#define dev_emerg(dev, format, arg...) \ + dev_printk(KERN_EMERG , dev , format , ## arg) +#define dev_alert(dev, format, arg...) \ + dev_printk(KERN_ALERT , dev , format , ## arg) +#define dev_crit(dev, format, arg...) \ + dev_printk(KERN_CRIT , dev , format , ## arg) #define dev_err(dev, format, arg...) \ dev_printk(KERN_ERR , dev , format , ## arg) -#define dev_info(dev, format, arg...) \ - dev_printk(KERN_INFO , dev , format , ## arg) #define dev_warn(dev, format, arg...) \ dev_printk(KERN_WARNING , dev , format , ## arg) #define dev_notice(dev, format, arg...) \ dev_printk(KERN_NOTICE , dev , format , ## arg) +#define dev_info(dev, format, arg...) \ + dev_printk(KERN_INFO , dev , format , ## arg) + +#if defined(DEBUG) +#define dev_dbg(dev, format, arg...) \ + dev_printk(KERN_DEBUG , dev , format , ## arg) +#elif defined(CONFIG_DYNAMIC_PRINTK_DEBUG) +#define dev_dbg(dev, format, ...) do { \ + dynamic_dev_dbg(dev, format, ##__VA_ARGS__); \ + } while (0) +#else +#define dev_dbg(dev, format, arg...) \ + ({ if (0) dev_printk(KERN_DEBUG, dev, format, ##arg); 0; }) +#endif + +#ifdef VERBOSE_DEBUG +#define dev_vdbg dev_dbg +#else + +#define dev_vdbg(dev, format, arg...) \ + ({ 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) \