1 #include <linux/pm.h> 2 3 /* Functions local to drivers/usb/core/ */ 4 5 extern int usb_create_sysfs_dev_files(struct usb_device *dev); 6 extern void usb_remove_sysfs_dev_files(struct usb_device *dev); 7 extern int usb_create_sysfs_intf_files(struct usb_interface *intf); 8 extern void usb_remove_sysfs_intf_files(struct usb_interface *intf); 9 extern int usb_create_ep_devs(struct device *parent, 10 struct usb_host_endpoint *endpoint, 11 struct usb_device *udev); 12 extern void usb_remove_ep_devs(struct usb_host_endpoint *endpoint); 13 14 extern void usb_enable_endpoint(struct usb_device *dev, 15 struct usb_host_endpoint *ep, bool reset_toggle); 16 extern void usb_enable_interface(struct usb_device *dev, 17 struct usb_interface *intf, bool reset_toggles); 18 extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr, 19 bool reset_hardware); 20 extern void usb_disable_interface(struct usb_device *dev, 21 struct usb_interface *intf, bool reset_hardware); 22 extern void usb_release_interface_cache(struct kref *ref); 23 extern void usb_disable_device(struct usb_device *dev, int skip_ep0); 24 extern int usb_deauthorize_device(struct usb_device *); 25 extern int usb_authorize_device(struct usb_device *); 26 extern void usb_detect_quirks(struct usb_device *udev); 27 28 extern int usb_get_device_descriptor(struct usb_device *dev, 29 unsigned int size); 30 extern char *usb_cache_string(struct usb_device *udev, int index); 31 extern int usb_set_configuration(struct usb_device *dev, int configuration); 32 extern int usb_choose_configuration(struct usb_device *udev); 33 34 extern void usb_kick_khubd(struct usb_device *dev); 35 extern int usb_match_device(struct usb_device *dev, 36 const struct usb_device_id *id); 37 extern void usb_forced_unbind_intf(struct usb_interface *intf); 38 extern void usb_rebind_intf(struct usb_interface *intf); 39 40 extern int usb_hub_init(void); 41 extern void usb_hub_cleanup(void); 42 extern int usb_major_init(void); 43 extern void usb_major_cleanup(void); 44 45 #ifdef CONFIG_PM 46 47 extern int usb_suspend(struct device *dev, pm_message_t msg); 48 extern int usb_resume(struct device *dev, pm_message_t msg); 49 50 extern void usb_autosuspend_work(struct work_struct *work); 51 extern void usb_autoresume_work(struct work_struct *work); 52 extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg); 53 extern int usb_port_resume(struct usb_device *dev, pm_message_t msg); 54 extern int usb_external_suspend_device(struct usb_device *udev, 55 pm_message_t msg); 56 extern int usb_external_resume_device(struct usb_device *udev, 57 pm_message_t msg); 58 59 static inline void usb_pm_lock(struct usb_device *udev) 60 { 61 mutex_lock_nested(&udev->pm_mutex, udev->level); 62 } 63 64 static inline void usb_pm_unlock(struct usb_device *udev) 65 { 66 mutex_unlock(&udev->pm_mutex); 67 } 68 69 #else 70 71 static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg) 72 { 73 return 0; 74 } 75 76 static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg) 77 { 78 return 0; 79 } 80 81 static inline void usb_pm_lock(struct usb_device *udev) {} 82 static inline void usb_pm_unlock(struct usb_device *udev) {} 83 84 #endif 85 86 #ifdef CONFIG_USB_SUSPEND 87 88 extern void usb_autosuspend_device(struct usb_device *udev); 89 extern void usb_try_autosuspend_device(struct usb_device *udev); 90 extern int usb_autoresume_device(struct usb_device *udev); 91 92 #else 93 94 #define usb_autosuspend_device(udev) do {} while (0) 95 #define usb_try_autosuspend_device(udev) do {} while (0) 96 static inline int usb_autoresume_device(struct usb_device *udev) 97 { 98 return 0; 99 } 100 101 #endif 102 103 extern struct workqueue_struct *ksuspend_usb_wq; 104 extern struct bus_type usb_bus_type; 105 extern struct device_type usb_device_type; 106 extern struct device_type usb_if_device_type; 107 extern struct device_type usb_ep_device_type; 108 extern struct usb_device_driver usb_generic_driver; 109 110 static inline int is_usb_device(const struct device *dev) 111 { 112 return dev->type == &usb_device_type; 113 } 114 115 static inline int is_usb_interface(const struct device *dev) 116 { 117 return dev->type == &usb_if_device_type; 118 } 119 120 static inline int is_usb_endpoint(const struct device *dev) 121 { 122 return dev->type == &usb_ep_device_type; 123 } 124 125 /* Do the same for device drivers and interface drivers. */ 126 127 static inline int is_usb_device_driver(struct device_driver *drv) 128 { 129 return container_of(drv, struct usbdrv_wrap, driver)-> 130 for_devices; 131 } 132 133 /* Interfaces and their "power state" are owned by usbcore */ 134 135 static inline void mark_active(struct usb_interface *f) 136 { 137 f->is_active = 1; 138 } 139 140 static inline void mark_quiesced(struct usb_interface *f) 141 { 142 f->is_active = 0; 143 } 144 145 static inline int is_active(const struct usb_interface *f) 146 { 147 return f->is_active; 148 } 149 150 151 /* for labeling diagnostics */ 152 extern const char *usbcore_name; 153 154 /* sysfs stuff */ 155 extern struct attribute_group *usb_device_groups[]; 156 extern struct attribute_group *usb_interface_groups[]; 157 158 /* usbfs stuff */ 159 extern struct mutex usbfs_mutex; 160 extern struct usb_driver usbfs_driver; 161 extern const struct file_operations usbfs_devices_fops; 162 extern const struct file_operations usbdev_file_operations; 163 extern void usbfs_conn_disc_event(void); 164 165 extern int usb_devio_init(void); 166 extern void usb_devio_cleanup(void); 167 168 /* internal notify stuff */ 169 extern void usb_notify_add_device(struct usb_device *udev); 170 extern void usb_notify_remove_device(struct usb_device *udev); 171 extern void usb_notify_add_bus(struct usb_bus *ubus); 172 extern void usb_notify_remove_bus(struct usb_bus *ubus); 173 174