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 extern int usb_remove_device(struct usb_device *udev); 28 29 extern int usb_get_device_descriptor(struct usb_device *dev, 30 unsigned int size); 31 extern char *usb_cache_string(struct usb_device *udev, int index); 32 extern int usb_set_configuration(struct usb_device *dev, int configuration); 33 extern int usb_choose_configuration(struct usb_device *udev); 34 35 extern void usb_kick_khubd(struct usb_device *dev); 36 extern int usb_match_device(struct usb_device *dev, 37 const struct usb_device_id *id); 38 extern void usb_forced_unbind_intf(struct usb_interface *intf); 39 extern void usb_rebind_intf(struct usb_interface *intf); 40 41 extern int usb_hub_claim_port(struct usb_device *hdev, unsigned port, 42 void *owner); 43 extern int usb_hub_release_port(struct usb_device *hdev, unsigned port, 44 void *owner); 45 extern void usb_hub_release_all_ports(struct usb_device *hdev, void *owner); 46 extern bool usb_device_is_owned(struct usb_device *udev); 47 48 extern int usb_hub_init(void); 49 extern void usb_hub_cleanup(void); 50 extern int usb_major_init(void); 51 extern void usb_major_cleanup(void); 52 53 #ifdef CONFIG_PM 54 55 extern int usb_suspend(struct device *dev, pm_message_t msg); 56 extern int usb_resume(struct device *dev, pm_message_t msg); 57 58 extern void usb_autosuspend_work(struct work_struct *work); 59 extern void usb_autoresume_work(struct work_struct *work); 60 extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg); 61 extern int usb_port_resume(struct usb_device *dev, pm_message_t msg); 62 extern int usb_external_suspend_device(struct usb_device *udev, 63 pm_message_t msg); 64 extern int usb_external_resume_device(struct usb_device *udev, 65 pm_message_t msg); 66 67 static inline void usb_pm_lock(struct usb_device *udev) 68 { 69 mutex_lock_nested(&udev->pm_mutex, udev->level); 70 } 71 72 static inline void usb_pm_unlock(struct usb_device *udev) 73 { 74 mutex_unlock(&udev->pm_mutex); 75 } 76 77 #else 78 79 static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg) 80 { 81 return 0; 82 } 83 84 static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg) 85 { 86 return 0; 87 } 88 89 static inline void usb_pm_lock(struct usb_device *udev) {} 90 static inline void usb_pm_unlock(struct usb_device *udev) {} 91 92 #endif 93 94 #ifdef CONFIG_USB_SUSPEND 95 96 extern void usb_autosuspend_device(struct usb_device *udev); 97 extern void usb_try_autosuspend_device(struct usb_device *udev); 98 extern int usb_autoresume_device(struct usb_device *udev); 99 100 #else 101 102 #define usb_autosuspend_device(udev) do {} while (0) 103 #define usb_try_autosuspend_device(udev) do {} while (0) 104 static inline int usb_autoresume_device(struct usb_device *udev) 105 { 106 return 0; 107 } 108 109 #endif 110 111 extern struct workqueue_struct *ksuspend_usb_wq; 112 extern struct bus_type usb_bus_type; 113 extern struct device_type usb_device_type; 114 extern struct device_type usb_if_device_type; 115 extern struct device_type usb_ep_device_type; 116 extern struct usb_device_driver usb_generic_driver; 117 118 static inline int is_usb_device(const struct device *dev) 119 { 120 return dev->type == &usb_device_type; 121 } 122 123 static inline int is_usb_interface(const struct device *dev) 124 { 125 return dev->type == &usb_if_device_type; 126 } 127 128 static inline int is_usb_endpoint(const struct device *dev) 129 { 130 return dev->type == &usb_ep_device_type; 131 } 132 133 /* Do the same for device drivers and interface drivers. */ 134 135 static inline int is_usb_device_driver(struct device_driver *drv) 136 { 137 return container_of(drv, struct usbdrv_wrap, driver)-> 138 for_devices; 139 } 140 141 /* Interfaces and their "power state" are owned by usbcore */ 142 143 static inline void mark_active(struct usb_interface *f) 144 { 145 f->is_active = 1; 146 } 147 148 static inline void mark_quiesced(struct usb_interface *f) 149 { 150 f->is_active = 0; 151 } 152 153 static inline int is_active(const struct usb_interface *f) 154 { 155 return f->is_active; 156 } 157 158 159 /* for labeling diagnostics */ 160 extern const char *usbcore_name; 161 162 /* sysfs stuff */ 163 extern const struct attribute_group *usb_device_groups[]; 164 extern const struct attribute_group *usb_interface_groups[]; 165 166 /* usbfs stuff */ 167 extern struct mutex usbfs_mutex; 168 extern struct usb_driver usbfs_driver; 169 extern const struct file_operations usbfs_devices_fops; 170 extern const struct file_operations usbdev_file_operations; 171 extern void usbfs_conn_disc_event(void); 172 173 extern int usb_devio_init(void); 174 extern void usb_devio_cleanup(void); 175 176 /* internal notify stuff */ 177 extern void usb_notify_add_device(struct usb_device *udev); 178 extern void usb_notify_remove_device(struct usb_device *udev); 179 extern void usb_notify_add_bus(struct usb_bus *ubus); 180 extern void usb_notify_remove_bus(struct usb_bus *ubus); 181 182