1 #include <linux/pm.h> 2 #include <linux/acpi.h> 3 4 struct usb_hub_descriptor; 5 struct usb_dev_state; 6 7 /* Functions local to drivers/usb/core/ */ 8 9 extern int usb_create_sysfs_dev_files(struct usb_device *dev); 10 extern void usb_remove_sysfs_dev_files(struct usb_device *dev); 11 extern void usb_create_sysfs_intf_files(struct usb_interface *intf); 12 extern void usb_remove_sysfs_intf_files(struct usb_interface *intf); 13 extern int usb_create_ep_devs(struct device *parent, 14 struct usb_host_endpoint *endpoint, 15 struct usb_device *udev); 16 extern void usb_remove_ep_devs(struct usb_host_endpoint *endpoint); 17 18 extern void usb_enable_endpoint(struct usb_device *dev, 19 struct usb_host_endpoint *ep, bool reset_toggle); 20 extern void usb_enable_interface(struct usb_device *dev, 21 struct usb_interface *intf, bool reset_toggles); 22 extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr, 23 bool reset_hardware); 24 extern void usb_disable_interface(struct usb_device *dev, 25 struct usb_interface *intf, bool reset_hardware); 26 extern void usb_release_interface_cache(struct kref *ref); 27 extern void usb_disable_device(struct usb_device *dev, int skip_ep0); 28 extern int usb_deauthorize_device(struct usb_device *); 29 extern int usb_authorize_device(struct usb_device *); 30 extern void usb_detect_quirks(struct usb_device *udev); 31 extern void usb_detect_interface_quirks(struct usb_device *udev); 32 extern int usb_remove_device(struct usb_device *udev); 33 34 extern int usb_get_device_descriptor(struct usb_device *dev, 35 unsigned int size); 36 extern int usb_get_bos_descriptor(struct usb_device *dev); 37 extern void usb_release_bos_descriptor(struct usb_device *dev); 38 extern char *usb_cache_string(struct usb_device *udev, int index); 39 extern int usb_set_configuration(struct usb_device *dev, int configuration); 40 extern int usb_choose_configuration(struct usb_device *udev); 41 42 static inline unsigned usb_get_max_power(struct usb_device *udev, 43 struct usb_host_config *c) 44 { 45 /* SuperSpeed power is in 8 mA units; others are in 2 mA units */ 46 unsigned mul = (udev->speed == USB_SPEED_SUPER ? 8 : 2); 47 48 return c->desc.bMaxPower * mul; 49 } 50 51 extern void usb_kick_khubd(struct usb_device *dev); 52 extern int usb_match_one_id_intf(struct usb_device *dev, 53 struct usb_host_interface *intf, 54 const struct usb_device_id *id); 55 extern int usb_match_device(struct usb_device *dev, 56 const struct usb_device_id *id); 57 extern void usb_forced_unbind_intf(struct usb_interface *intf); 58 extern void usb_unbind_and_rebind_marked_interfaces(struct usb_device *udev); 59 60 extern void usb_hub_release_all_ports(struct usb_device *hdev, 61 struct usb_dev_state *owner); 62 extern bool usb_device_is_owned(struct usb_device *udev); 63 64 extern int usb_hub_init(void); 65 extern void usb_hub_cleanup(void); 66 extern int usb_major_init(void); 67 extern void usb_major_cleanup(void); 68 69 #ifdef CONFIG_PM 70 71 extern int usb_suspend(struct device *dev, pm_message_t msg); 72 extern int usb_resume(struct device *dev, pm_message_t msg); 73 extern int usb_resume_complete(struct device *dev); 74 75 extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg); 76 extern int usb_port_resume(struct usb_device *dev, pm_message_t msg); 77 78 #else 79 80 static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg) 81 { 82 return 0; 83 } 84 85 static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg) 86 { 87 return 0; 88 } 89 90 #endif 91 92 #ifdef CONFIG_PM_RUNTIME 93 94 extern void usb_autosuspend_device(struct usb_device *udev); 95 extern int usb_autoresume_device(struct usb_device *udev); 96 extern int usb_remote_wakeup(struct usb_device *dev); 97 extern int usb_runtime_suspend(struct device *dev); 98 extern int usb_runtime_resume(struct device *dev); 99 extern int usb_runtime_idle(struct device *dev); 100 extern int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable); 101 102 #else 103 104 #define usb_autosuspend_device(udev) do {} while (0) 105 static inline int usb_autoresume_device(struct usb_device *udev) 106 { 107 return 0; 108 } 109 110 static inline int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable) 111 { 112 return 0; 113 } 114 #endif 115 116 extern struct bus_type usb_bus_type; 117 extern struct mutex usb_port_peer_mutex; 118 extern struct device_type usb_device_type; 119 extern struct device_type usb_if_device_type; 120 extern struct device_type usb_ep_device_type; 121 extern struct device_type usb_port_device_type; 122 extern struct usb_device_driver usb_generic_driver; 123 124 static inline int is_usb_device(const struct device *dev) 125 { 126 return dev->type == &usb_device_type; 127 } 128 129 static inline int is_usb_interface(const struct device *dev) 130 { 131 return dev->type == &usb_if_device_type; 132 } 133 134 static inline int is_usb_endpoint(const struct device *dev) 135 { 136 return dev->type == &usb_ep_device_type; 137 } 138 139 static inline int is_usb_port(const struct device *dev) 140 { 141 return dev->type == &usb_port_device_type; 142 } 143 144 /* Do the same for device drivers and interface drivers. */ 145 146 static inline int is_usb_device_driver(struct device_driver *drv) 147 { 148 return container_of(drv, struct usbdrv_wrap, driver)-> 149 for_devices; 150 } 151 152 /* for labeling diagnostics */ 153 extern const char *usbcore_name; 154 155 /* sysfs stuff */ 156 extern const struct attribute_group *usb_device_groups[]; 157 extern const struct attribute_group *usb_interface_groups[]; 158 159 /* usbfs stuff */ 160 extern struct mutex usbfs_mutex; 161 extern struct usb_driver usbfs_driver; 162 extern const struct file_operations usbfs_devices_fops; 163 extern const struct file_operations usbdev_file_operations; 164 extern void usbfs_conn_disc_event(void); 165 166 extern int usb_devio_init(void); 167 extern void usb_devio_cleanup(void); 168 169 /* 170 * Firmware specific cookie identifying a port's location. '0' == no location 171 * data available 172 */ 173 typedef u32 usb_port_location_t; 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 extern void usb_hub_adjust_deviceremovable(struct usb_device *hdev, 181 struct usb_hub_descriptor *desc); 182 183 #ifdef CONFIG_ACPI 184 extern int usb_acpi_register(void); 185 extern void usb_acpi_unregister(void); 186 extern acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev, 187 int port1); 188 #else 189 static inline int usb_acpi_register(void) { return 0; }; 190 static inline void usb_acpi_unregister(void) { }; 191 #endif 192