| 1,408 → 1,418 |
|---|
| /* |
| * device.h - generic, centralized driver model |
| * |
| * Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org> |
| * |
| * This file is released under the GPLv2 |
| * |
| * See Documentation/driver-model/ for more information. |
| */ |
| |
| #ifndef _DEVICE_H_ |
| #define _DEVICE_H_ |
| |
| #include <linux/config.h> |
| #include <linux/ioport.h> |
| #include <linux/kobject.h> |
| #include <linux/list.h> |
| #include <linux/spinlock.h> |
| #include <linux/types.h> |
| #include <linux/ioport.h> |
| #include <linux/module.h> |
| #include <linux/pm.h> |
| #include <asm/semaphore.h> |
| #include <asm/atomic.h> |
| |
| #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 |
| |
| |
| 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 bus_type { |
| char * name; |
| |
| struct subsystem subsys; |
| struct kset drivers; |
| struct kset devices; |
| |
| int (*match)(struct device * dev, struct device_driver * drv); |
| struct device * (*add) (struct device * parent, char * bus_id); |
| int (*hotplug) (struct device *dev, char **envp, |
| int num_envp, char *buffer, int buffer_size); |
| int (*suspend)(struct device * dev, u32 state); |
| int (*resume)(struct device * dev); |
| }; |
| |
| 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 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, |
| int (*fn)(struct device *, void *)); |
| |
| int bus_for_each_drv(struct bus_type * bus, struct device_driver * start, |
| void * data, int (*fn)(struct device_driver *, void *)); |
| |
| |
| /* 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 = __stringify(_name), .mode = _mode, .owner = THIS_MODULE }, \ |
| .show = _show, \ |
| .store = _store, \ |
| }; |
| |
| extern int bus_create_file(struct bus_type *, struct bus_attribute *); |
| extern void bus_remove_file(struct bus_type *, struct bus_attribute *); |
| |
| struct device_driver { |
| char * name; |
| struct bus_type * bus; |
| |
| struct semaphore unload_sem; |
| struct kobject kobj; |
| struct list_head devices; |
| |
| int (*probe) (struct device * dev); |
| int (*remove) (struct device * dev); |
| void (*shutdown) (struct device * dev); |
| int (*suspend) (struct device * dev, u32 state, u32 level); |
| int (*resume) (struct device * dev, u32 level); |
| }; |
| |
| |
| extern int 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); |
| |
| |
| /* driverfs 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); |
| }; |
| |
| #define DRIVER_ATTR(_name,_mode,_show,_store) \ |
| struct driver_attribute driver_attr_##_name = { \ |
| .attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE }, \ |
| .show = _show, \ |
| .store = _store, \ |
| }; |
| |
| extern int driver_create_file(struct device_driver *, struct driver_attribute *); |
| extern void driver_remove_file(struct device_driver *, struct driver_attribute *); |
| |
| |
| /* |
| * device classes |
| */ |
| struct class { |
| char * name; |
| |
| struct subsystem subsys; |
| struct list_head children; |
| struct list_head interfaces; |
| |
| int (*hotplug)(struct class_device *dev, char **envp, |
| int num_envp, char *buffer, int buffer_size); |
| |
| void (*release)(struct class_device *dev); |
| }; |
| |
| 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; |
| ssize_t (*show)(struct class *, char * buf); |
| ssize_t (*store)(struct class *, const char * buf, size_t count); |
| }; |
| |
| #define CLASS_ATTR(_name,_mode,_show,_store) \ |
| struct class_attribute class_attr_##_name = { \ |
| .attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE }, \ |
| .show = _show, \ |
| .store = _store, \ |
| }; |
| |
| 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 { |
| struct list_head node; |
| |
| struct kobject kobj; |
| struct class * class; /* required */ |
| struct device * dev; /* not necessary, but nice to have */ |
| void * class_data; /* class-specific data */ |
| |
| char class_id[BUS_ID_SIZE]; /* unique to this class */ |
| }; |
| |
| 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 class_device_register(struct class_device *); |
| extern void class_device_unregister(struct class_device *); |
| extern void class_device_initialize(struct class_device *); |
| extern int class_device_add(struct class_device *); |
| extern void class_device_del(struct class_device *); |
| |
| extern int class_device_rename(struct class_device *, char *); |
| |
| 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 = __stringify(_name), .mode = _mode, .owner = THIS_MODULE }, \ |
| .show = _show, \ |
| .store = _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 *); |
| |
| |
| struct class_interface { |
| struct list_head node; |
| struct class *class; |
| |
| int (*add) (struct class_device *); |
| void (*remove) (struct class_device *); |
| }; |
| |
| extern int class_interface_register(struct class_interface *); |
| extern void class_interface_unregister(struct class_interface *); |
| |
| |
| 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 device * parent; |
| |
| struct completion * complete; /* Notification for freeing device. */ |
| struct kobject kobj; |
| char bus_id[BUS_ID_SIZE]; /* position on parent bus */ |
| |
| 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 (e.g. ACPI, |
| BIOS data relevant to device) */ |
| struct dev_pm_info power; |
| u32 power_state; /* Current operating state. In |
| ACPI-speak, this is D0-D3, D0 |
| being fully functional, and D3 |
| being off. */ |
| |
| unsigned char *saved_state; /* saved device state */ |
| u32 detach_state; /* State to enter when device is |
| detached from its driver. */ |
| |
| u64 *dma_mask; /* dma mask (if dma'able device) */ |
| |
| 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) |
| { |
| return dev->driver_data; |
| } |
| |
| static inline void |
| dev_set_drvdata (struct device *dev, void *data) |
| { |
| dev->driver_data = data; |
| } |
| |
| /* |
| * High level routines for use by the bus drivers |
| */ |
| extern int device_register(struct device * dev); |
| extern void device_unregister(struct device * dev); |
| extern void device_unregister_wait(struct device * dev); |
| extern void device_initialize(struct device * dev); |
| extern int 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 *)); |
| |
| /* |
| * Manual binding of a device to driver. See drivers/base/bus.c |
| * for information on use. |
| */ |
| extern void device_bind_driver(struct device * dev); |
| extern void device_release_driver(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 = __stringify(_name), .mode = _mode, .owner = THIS_MODULE }, \ |
| .show = _show, \ |
| .store = _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 |
| * know about. |
| */ |
| /* Notify platform of device discovery */ |
| extern int (*platform_notify)(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); |
| |
| |
| /* 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 legacy_bus; |
| |
| /* drivers/base/power.c */ |
| extern void device_shutdown(void); |
| |
| |
| /* drivers/base/firmware.c */ |
| extern int firmware_register(struct subsystem *); |
| extern void firmware_unregister(struct subsystem *); |
| |
| /* debugging and troubleshooting/diagnostic helpers. */ |
| #define dev_printk(level, dev, format, arg...) \ |
| printk(level "%s %s: " format , (dev)->driver->name , (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 {} while (0) |
| #endif |
| |
| #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) |
| |
| /* Create alias, so I can be autoloaded. */ |
| #define MODULE_ALIAS_CHARDEV(major,minor) \ |
| MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor)) |
| #define MODULE_ALIAS_CHARDEV_MAJOR(major) \ |
| MODULE_ALIAS("char-major-" __stringify(major) "-*") |
| #endif /* _DEVICE_H_ */ |
| /* |
| * device.h - generic, centralized driver model |
| * |
| * Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org> |
| * |
| * This file is released under the GPLv2 |
| * |
| * See Documentation/driver-model/ for more information. |
| */ |
| |
| #ifndef _DEVICE_H_ |
| #define _DEVICE_H_ |
| |
| #include <linux/config.h> |
| #include <linux/ioport.h> |
| #include <linux/kobject.h> |
| #include <linux/list.h> |
| #include <linux/spinlock.h> |
| #include <linux/types.h> |
| #include <linux/ioport.h> |
| #include <linux/module.h> |
| #include <linux/pm.h> |
| #include <asm/semaphore.h> |
| #include <asm/atomic.h> |
| |
| #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 |
| |
| |
| 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 bus_type { |
| char * name; |
| |
| struct subsystem subsys; |
| struct kset drivers; |
| struct kset devices; |
| |
| int (*match)(struct device * dev, struct device_driver * drv); |
| struct device * (*add) (struct device * parent, char * bus_id); |
| int (*hotplug) (struct device *dev, char **envp, |
| int num_envp, char *buffer, int buffer_size); |
| int (*suspend)(struct device * dev, u32 state); |
| int (*resume)(struct device * dev); |
| }; |
| |
| 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 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, |
| int (*fn)(struct device *, void *)); |
| |
| int bus_for_each_drv(struct bus_type * bus, struct device_driver * start, |
| void * data, int (*fn)(struct device_driver *, void *)); |
| |
| |
| /* 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 = __stringify(_name), .mode = _mode, .owner = THIS_MODULE }, \ |
| .show = _show, \ |
| .store = _store, \ |
| }; |
| |
| extern int bus_create_file(struct bus_type *, struct bus_attribute *); |
| extern void bus_remove_file(struct bus_type *, struct bus_attribute *); |
| |
| struct device_driver { |
| char * name; |
| struct bus_type * bus; |
| |
| struct semaphore unload_sem; |
| struct kobject kobj; |
| struct list_head devices; |
| |
| int (*probe) (struct device * dev); |
| int (*remove) (struct device * dev); |
| void (*shutdown) (struct device * dev); |
| int (*suspend) (struct device * dev, u32 state, u32 level); |
| int (*resume) (struct device * dev, u32 level); |
| }; |
| |
| |
| extern int 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); |
| |
| |
| /* driverfs 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); |
| }; |
| |
| #define DRIVER_ATTR(_name,_mode,_show,_store) \ |
| struct driver_attribute driver_attr_##_name = { \ |
| .attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE }, \ |
| .show = _show, \ |
| .store = _store, \ |
| }; |
| |
| extern int driver_create_file(struct device_driver *, struct driver_attribute *); |
| extern void driver_remove_file(struct device_driver *, struct driver_attribute *); |
| |
| |
| /* |
| * device classes |
| */ |
| struct class { |
| char * name; |
| |
| struct subsystem subsys; |
| struct list_head children; |
| struct list_head interfaces; |
| |
| int (*hotplug)(struct class_device *dev, char **envp, |
| int num_envp, char *buffer, int buffer_size); |
| |
| void (*release)(struct class_device *dev); |
| }; |
| |
| 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; |
| ssize_t (*show)(struct class *, char * buf); |
| ssize_t (*store)(struct class *, const char * buf, size_t count); |
| }; |
| |
| #define CLASS_ATTR(_name,_mode,_show,_store) \ |
| struct class_attribute class_attr_##_name = { \ |
| .attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE }, \ |
| .show = _show, \ |
| .store = _store, \ |
| }; |
| |
| 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 { |
| struct list_head node; |
| |
| struct kobject kobj; |
| struct class * class; /* required */ |
| struct device * dev; /* not necessary, but nice to have */ |
| void * class_data; /* class-specific data */ |
| |
| char class_id[BUS_ID_SIZE]; /* unique to this class */ |
| }; |
| |
| 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 class_device_register(struct class_device *); |
| extern void class_device_unregister(struct class_device *); |
| extern void class_device_initialize(struct class_device *); |
| extern int class_device_add(struct class_device *); |
| extern void class_device_del(struct class_device *); |
| |
| extern int class_device_rename(struct class_device *, char *); |
| |
| 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 = __stringify(_name), .mode = _mode, .owner = THIS_MODULE }, \ |
| .show = _show, \ |
| .store = _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 *); |
| |
| |
| struct class_interface { |
| struct list_head node; |
| struct class *class; |
| |
| int (*add) (struct class_device *); |
| void (*remove) (struct class_device *); |
| }; |
| |
| extern int class_interface_register(struct class_interface *); |
| extern void class_interface_unregister(struct class_interface *); |
| |
| |
| 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 device * parent; |
| |
| struct completion * complete; /* Notification for freeing device. */ |
| struct kobject kobj; |
| char bus_id[BUS_ID_SIZE]; /* position on parent bus */ |
| |
| 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 (e.g. ACPI, |
| BIOS data relevant to device) */ |
| struct dev_pm_info power; |
| u32 power_state; /* Current operating state. In |
| ACPI-speak, this is D0-D3, D0 |
| being fully functional, and D3 |
| being off. */ |
| |
| unsigned char *saved_state; /* saved device state */ |
| u32 detach_state; /* State to enter when device is |
| detached from its driver. */ |
| |
| u64 *dma_mask; /* dma mask (if dma'able device) */ |
| |
| 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) |
| { |
| return dev->driver_data; |
| } |
| |
| static inline void |
| dev_set_drvdata (struct device *dev, void *data) |
| { |
| dev->driver_data = data; |
| } |
| |
| /* |
| * High level routines for use by the bus drivers |
| */ |
| extern int device_register(struct device * dev); |
| extern void device_unregister(struct device * dev); |
| extern void device_unregister_wait(struct device * dev); |
| extern void device_initialize(struct device * dev); |
| extern int 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 *)); |
| |
| /* |
| * Manual binding of a device to driver. See drivers/base/bus.c |
| * for information on use. |
| */ |
| extern void device_bind_driver(struct device * dev); |
| extern void device_release_driver(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 = __stringify(_name), .mode = _mode, .owner = THIS_MODULE }, \ |
| .show = _show, \ |
| .store = _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 |
| * know about. |
| */ |
| /* Notify platform of device discovery */ |
| extern int (*platform_notify)(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); |
| |
| |
| /* 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 legacy_bus; |
| |
| /* drivers/base/power.c */ |
| extern void device_shutdown(void); |
| |
| |
| /* drivers/base/firmware.c */ |
| extern int firmware_register(struct subsystem *); |
| extern void firmware_unregister(struct subsystem *); |
| |
| /* debugging and troubleshooting/diagnostic helpers. */ |
| #define dev_printk(level, dev, format, arg...) \ |
| printk(level "%s %s: " format , (dev)->driver->name , (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 {} while (0) |
| #endif |
| |
| #ifdef DEBUG //** for shark usb |
| |
| #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) |
| |
| #else |
| |
| #define dev_err(dev, format, arg...) |
| #define dev_info(dev, format, arg...) |
| #define dev_warn(dev, format, arg...) |
| |
| #endif |
| |
| /* Create alias, so I can be autoloaded. */ |
| #define MODULE_ALIAS_CHARDEV(major,minor) \ |
| MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor)) |
| #define MODULE_ALIAS_CHARDEV_MAJOR(major) \ |
| MODULE_ALIAS("char-major-" __stringify(major) "-*") |
| #endif /* _DEVICE_H_ */ |