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_deauthorize_interface(struct usb_interface *); 31 extern void usb_authorize_interface(struct usb_interface *); 32 extern void usb_detect_quirks(struct usb_device *udev); 33 extern void usb_detect_interface_quirks(struct usb_device *udev); 34 extern int usb_remove_device(struct usb_device *udev); 35 36 extern int usb_get_device_descriptor(struct usb_device *dev, 37 unsigned int size); 38 extern int usb_get_bos_descriptor(struct usb_device *dev); 39 extern void usb_release_bos_descriptor(struct usb_device *dev); 40 extern char *usb_cache_string(struct usb_device *udev, int index); 41 extern int usb_set_configuration(struct usb_device *dev, int configuration); 42 extern int usb_choose_configuration(struct usb_device *udev); 43 44 static inline unsigned usb_get_max_power(struct usb_device *udev, 45 struct usb_host_config *c) 46 { 47 /* SuperSpeed power is in 8 mA units; others are in 2 mA units */ 48 unsigned mul = (udev->speed == USB_SPEED_SUPER ? 8 : 2); 49 50 return c->desc.bMaxPower * mul; 51 } 52 53 extern void usb_kick_hub_wq(struct usb_device *dev); 54 extern int usb_match_one_id_intf(struct usb_device *dev, 55 struct usb_host_interface *intf, 56 const struct usb_device_id *id); 57 extern int usb_match_device(struct usb_device *dev, 58 const struct usb_device_id *id); 59 extern void usb_forced_unbind_intf(struct usb_interface *intf); 60 extern void usb_unbind_and_rebind_marked_interfaces(struct usb_device *udev); 61 62 extern void usb_hub_release_all_ports(struct usb_device *hdev, 63 struct usb_dev_state *owner); 64 extern bool usb_device_is_owned(struct usb_device *udev); 65 66 extern int usb_hub_init(void); 67 extern void usb_hub_cleanup(void); 68 extern int usb_major_init(void); 69 extern void usb_major_cleanup(void); 70 extern int usb_device_supports_lpm(struct usb_device *udev); 71 72 #ifdef CONFIG_PM 73 74 extern int usb_suspend(struct device *dev, pm_message_t msg); 75 extern int usb_resume(struct device *dev, pm_message_t msg); 76 extern int usb_resume_complete(struct device *dev); 77 78 extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg); 79 extern int usb_port_resume(struct usb_device *dev, pm_message_t msg); 80 81 extern void usb_autosuspend_device(struct usb_device *udev); 82 extern int usb_autoresume_device(struct usb_device *udev); 83 extern int usb_remote_wakeup(struct usb_device *dev); 84 extern int usb_runtime_suspend(struct device *dev); 85 extern int usb_runtime_resume(struct device *dev); 86 extern int usb_runtime_idle(struct device *dev); 87 extern int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable); 88 89 #else 90 91 static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg) 92 { 93 return 0; 94 } 95 96 static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg) 97 { 98 return 0; 99 } 100 101 #define usb_autosuspend_device(udev) do {} while (0) 102 static inline int usb_autoresume_device(struct usb_device *udev) 103 { 104 return 0; 105 } 106 107 static inline int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable) 108 { 109 return 0; 110 } 111 112 #endif 113 114 extern struct bus_type usb_bus_type; 115 extern struct mutex usb_port_peer_mutex; 116 extern struct device_type usb_device_type; 117 extern struct device_type usb_if_device_type; 118 extern struct device_type usb_ep_device_type; 119 extern struct device_type usb_port_device_type; 120 extern struct usb_device_driver usb_generic_driver; 121 122 static inline int is_usb_device(const struct device *dev) 123 { 124 return dev->type == &usb_device_type; 125 } 126 127 static inline int is_usb_interface(const struct device *dev) 128 { 129 return dev->type == &usb_if_device_type; 130 } 131 132 static inline int is_usb_endpoint(const struct device *dev) 133 { 134 return dev->type == &usb_ep_device_type; 135 } 136 137 static inline int is_usb_port(const struct device *dev) 138 { 139 return dev->type == &usb_port_device_type; 140 } 141 142 /* Do the same for device drivers and interface drivers. */ 143 144 static inline int is_usb_device_driver(struct device_driver *drv) 145 { 146 return container_of(drv, struct usbdrv_wrap, driver)-> 147 for_devices; 148 } 149 150 /* for labeling diagnostics */ 151 extern const char *usbcore_name; 152 153 /* sysfs stuff */ 154 extern const struct attribute_group *usb_device_groups[]; 155 extern const struct attribute_group *usb_interface_groups[]; 156 157 /* usbfs stuff */ 158 extern struct mutex usbfs_mutex; 159 extern struct usb_driver usbfs_driver; 160 extern const struct file_operations usbfs_devices_fops; 161 extern const struct file_operations usbdev_file_operations; 162 extern void usbfs_conn_disc_event(void); 163 164 extern int usb_devio_init(void); 165 extern void usb_devio_cleanup(void); 166 167 /* 168 * Firmware specific cookie identifying a port's location. '0' == no location 169 * data available 170 */ 171 typedef u32 usb_port_location_t; 172 173 /* internal notify stuff */ 174 extern void usb_notify_add_device(struct usb_device *udev); 175 extern void usb_notify_remove_device(struct usb_device *udev); 176 extern void usb_notify_add_bus(struct usb_bus *ubus); 177 extern void usb_notify_remove_bus(struct usb_bus *ubus); 178 extern void usb_hub_adjust_deviceremovable(struct usb_device *hdev, 179 struct usb_hub_descriptor *desc); 180 181 #ifdef CONFIG_ACPI 182 extern int usb_acpi_register(void); 183 extern void usb_acpi_unregister(void); 184 extern acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev, 185 int port1); 186 #else 187 static inline int usb_acpi_register(void) { return 0; }; 188 static inline void usb_acpi_unregister(void) { }; 189 #endif 190