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 extern int usb_host_init(void); 45 extern void usb_host_cleanup(void); 46 47 #ifdef CONFIG_PM 48 49 extern int usb_suspend(struct device *dev, pm_message_t msg); 50 extern int usb_resume(struct device *dev, pm_message_t msg); 51 52 extern void usb_autosuspend_work(struct work_struct *work); 53 extern void usb_autoresume_work(struct work_struct *work); 54 extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg); 55 extern int usb_port_resume(struct usb_device *dev, pm_message_t msg); 56 extern int usb_external_suspend_device(struct usb_device *udev, 57 pm_message_t msg); 58 extern int usb_external_resume_device(struct usb_device *udev, 59 pm_message_t msg); 60 61 static inline void usb_pm_lock(struct usb_device *udev) 62 { 63 mutex_lock_nested(&udev->pm_mutex, udev->level); 64 } 65 66 static inline void usb_pm_unlock(struct usb_device *udev) 67 { 68 mutex_unlock(&udev->pm_mutex); 69 } 70 71 #else 72 73 static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg) 74 { 75 return 0; 76 } 77 78 static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg) 79 { 80 return 0; 81 } 82 83 static inline void usb_pm_lock(struct usb_device *udev) {} 84 static inline void usb_pm_unlock(struct usb_device *udev) {} 85 86 #endif 87 88 #ifdef CONFIG_USB_SUSPEND 89 90 extern void usb_autosuspend_device(struct usb_device *udev); 91 extern void usb_try_autosuspend_device(struct usb_device *udev); 92 extern int usb_autoresume_device(struct usb_device *udev); 93 94 #else 95 96 #define usb_autosuspend_device(udev) do {} while (0) 97 #define usb_try_autosuspend_device(udev) do {} while (0) 98 static inline int usb_autoresume_device(struct usb_device *udev) 99 { 100 return 0; 101 } 102 103 #endif 104 105 extern struct workqueue_struct *ksuspend_usb_wq; 106 extern struct bus_type usb_bus_type; 107 extern struct device_type usb_device_type; 108 extern struct device_type usb_if_device_type; 109 extern struct usb_device_driver usb_generic_driver; 110 111 static inline int is_usb_device(const struct device *dev) 112 { 113 return dev->type == &usb_device_type; 114 } 115 116 /* Do the same for device drivers and interface drivers. */ 117 118 static inline int is_usb_device_driver(struct device_driver *drv) 119 { 120 return container_of(drv, struct usbdrv_wrap, driver)-> 121 for_devices; 122 } 123 124 /* Interfaces and their "power state" are owned by usbcore */ 125 126 static inline void mark_active(struct usb_interface *f) 127 { 128 f->is_active = 1; 129 } 130 131 static inline void mark_quiesced(struct usb_interface *f) 132 { 133 f->is_active = 0; 134 } 135 136 static inline int is_active(const struct usb_interface *f) 137 { 138 return f->is_active; 139 } 140 141 142 /* for labeling diagnostics */ 143 extern const char *usbcore_name; 144 145 /* sysfs stuff */ 146 extern struct attribute_group *usb_device_groups[]; 147 extern struct attribute_group *usb_interface_groups[]; 148 149 /* usbfs stuff */ 150 extern struct mutex usbfs_mutex; 151 extern struct usb_driver usbfs_driver; 152 extern const struct file_operations usbfs_devices_fops; 153 extern const struct file_operations usbdev_file_operations; 154 extern void usbfs_conn_disc_event(void); 155 156 extern int usb_devio_init(void); 157 extern void usb_devio_cleanup(void); 158 159 /* internal notify stuff */ 160 extern void usb_notify_add_device(struct usb_device *udev); 161 extern void usb_notify_remove_device(struct usb_device *udev); 162 extern void usb_notify_add_bus(struct usb_bus *ubus); 163 extern void usb_notify_remove_bus(struct usb_bus *ubus); 164 165