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 void 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 int usb_get_bos_descriptor(struct usb_device *dev); 32 extern void usb_release_bos_descriptor(struct usb_device *dev); 33 extern char *usb_cache_string(struct usb_device *udev, int index); 34 extern int usb_set_configuration(struct usb_device *dev, int configuration); 35 extern int usb_choose_configuration(struct usb_device *udev); 36 37 extern void usb_kick_khubd(struct usb_device *dev); 38 extern int usb_match_device(struct usb_device *dev, 39 const struct usb_device_id *id); 40 extern void usb_forced_unbind_intf(struct usb_interface *intf); 41 extern void usb_rebind_intf(struct usb_interface *intf); 42 43 extern int usb_hub_claim_port(struct usb_device *hdev, unsigned port, 44 void *owner); 45 extern int usb_hub_release_port(struct usb_device *hdev, unsigned port, 46 void *owner); 47 extern void usb_hub_release_all_ports(struct usb_device *hdev, void *owner); 48 extern bool usb_device_is_owned(struct usb_device *udev); 49 50 extern int usb_hub_init(void); 51 extern void usb_hub_cleanup(void); 52 extern int usb_major_init(void); 53 extern void usb_major_cleanup(void); 54 55 #ifdef CONFIG_PM 56 57 extern int usb_suspend(struct device *dev, pm_message_t msg); 58 extern int usb_resume(struct device *dev, pm_message_t msg); 59 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 63 #else 64 65 static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg) 66 { 67 return 0; 68 } 69 70 static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg) 71 { 72 return 0; 73 } 74 75 #endif 76 77 #ifdef CONFIG_USB_SUSPEND 78 79 extern void usb_autosuspend_device(struct usb_device *udev); 80 extern int usb_autoresume_device(struct usb_device *udev); 81 extern int usb_remote_wakeup(struct usb_device *dev); 82 extern int usb_runtime_suspend(struct device *dev); 83 extern int usb_runtime_resume(struct device *dev); 84 extern int usb_runtime_idle(struct device *dev); 85 extern int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable); 86 87 #else 88 89 #define usb_autosuspend_device(udev) do {} while (0) 90 static inline int usb_autoresume_device(struct usb_device *udev) 91 { 92 return 0; 93 } 94 95 static inline int usb_remote_wakeup(struct usb_device *udev) 96 { 97 return 0; 98 } 99 100 static inline int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable) 101 { 102 return 0; 103 } 104 #endif 105 106 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 device_type usb_ep_device_type; 110 extern struct usb_device_driver usb_generic_driver; 111 112 static inline int is_usb_device(const struct device *dev) 113 { 114 return dev->type == &usb_device_type; 115 } 116 117 static inline int is_usb_interface(const struct device *dev) 118 { 119 return dev->type == &usb_if_device_type; 120 } 121 122 static inline int is_usb_endpoint(const struct device *dev) 123 { 124 return dev->type == &usb_ep_device_type; 125 } 126 127 /* Do the same for device drivers and interface drivers. */ 128 129 static inline int is_usb_device_driver(struct device_driver *drv) 130 { 131 return container_of(drv, struct usbdrv_wrap, driver)-> 132 for_devices; 133 } 134 135 /* translate USB error codes to codes user space understands */ 136 static inline int usb_translate_errors(int error_code) 137 { 138 switch (error_code) { 139 case 0: 140 case -ENOMEM: 141 case -ENODEV: 142 return error_code; 143 default: 144 return -EIO; 145 } 146 } 147 148 149 /* for labeling diagnostics */ 150 extern const char *usbcore_name; 151 152 /* sysfs stuff */ 153 extern const struct attribute_group *usb_device_groups[]; 154 extern const struct attribute_group *usb_interface_groups[]; 155 156 /* usbfs stuff */ 157 extern struct mutex usbfs_mutex; 158 extern struct usb_driver usbfs_driver; 159 extern const struct file_operations usbfs_devices_fops; 160 extern const struct file_operations usbdev_file_operations; 161 extern void usbfs_conn_disc_event(void); 162 163 extern int usb_devio_init(void); 164 extern void usb_devio_cleanup(void); 165 166 /* internal notify stuff */ 167 extern void usb_notify_add_device(struct usb_device *udev); 168 extern void usb_notify_remove_device(struct usb_device *udev); 169 extern void usb_notify_add_bus(struct usb_bus *ubus); 170 extern void usb_notify_remove_bus(struct usb_bus *ubus); 171 172