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