1 #include <linux/pm.h> 2 #include <linux/acpi.h> 3 4 struct usb_hub_descriptor; 5 struct 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_rebind_intf(struct usb_interface *intf); 59 60 extern int usb_hub_claim_port(struct usb_device *hdev, unsigned port, 61 struct dev_state *owner); 62 extern int usb_hub_release_port(struct usb_device *hdev, unsigned port, 63 struct dev_state *owner); 64 extern void usb_hub_release_all_ports(struct usb_device *hdev, 65 struct dev_state *owner); 66 extern bool usb_device_is_owned(struct usb_device *udev); 67 68 extern int usb_hub_init(void); 69 extern void usb_hub_cleanup(void); 70 extern int usb_major_init(void); 71 extern void usb_major_cleanup(void); 72 73 #ifdef CONFIG_PM 74 75 extern int usb_suspend(struct device *dev, pm_message_t msg); 76 extern int usb_resume(struct device *dev, pm_message_t msg); 77 extern int usb_resume_complete(struct device *dev); 78 79 extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg); 80 extern int usb_port_resume(struct usb_device *dev, pm_message_t msg); 81 82 #else 83 84 static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg) 85 { 86 return 0; 87 } 88 89 static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg) 90 { 91 return 0; 92 } 93 94 #endif 95 96 #ifdef CONFIG_PM_RUNTIME 97 98 extern void usb_autosuspend_device(struct usb_device *udev); 99 extern int usb_autoresume_device(struct usb_device *udev); 100 extern int usb_remote_wakeup(struct usb_device *dev); 101 extern int usb_runtime_suspend(struct device *dev); 102 extern int usb_runtime_resume(struct device *dev); 103 extern int usb_runtime_idle(struct device *dev); 104 extern int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable); 105 106 #else 107 108 #define usb_autosuspend_device(udev) do {} while (0) 109 static inline int usb_autoresume_device(struct usb_device *udev) 110 { 111 return 0; 112 } 113 114 static inline int usb_remote_wakeup(struct usb_device *udev) 115 { 116 return 0; 117 } 118 119 static inline int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable) 120 { 121 return 0; 122 } 123 #endif 124 125 extern struct bus_type usb_bus_type; 126 extern struct device_type usb_device_type; 127 extern struct device_type usb_if_device_type; 128 extern struct device_type usb_ep_device_type; 129 extern struct device_type usb_port_device_type; 130 extern struct usb_device_driver usb_generic_driver; 131 132 static inline int is_usb_device(const struct device *dev) 133 { 134 return dev->type == &usb_device_type; 135 } 136 137 static inline int is_usb_interface(const struct device *dev) 138 { 139 return dev->type == &usb_if_device_type; 140 } 141 142 static inline int is_usb_endpoint(const struct device *dev) 143 { 144 return dev->type == &usb_ep_device_type; 145 } 146 147 static inline int is_usb_port(const struct device *dev) 148 { 149 return dev->type == &usb_port_device_type; 150 } 151 152 /* Do the same for device drivers and interface drivers. */ 153 154 static inline int is_usb_device_driver(struct device_driver *drv) 155 { 156 return container_of(drv, struct usbdrv_wrap, driver)-> 157 for_devices; 158 } 159 160 /* for labeling diagnostics */ 161 extern const char *usbcore_name; 162 163 /* sysfs stuff */ 164 extern const struct attribute_group *usb_device_groups[]; 165 extern const struct attribute_group *usb_interface_groups[]; 166 167 /* usbfs stuff */ 168 extern struct mutex usbfs_mutex; 169 extern struct usb_driver usbfs_driver; 170 extern const struct file_operations usbfs_devices_fops; 171 extern const struct file_operations usbdev_file_operations; 172 extern void usbfs_conn_disc_event(void); 173 174 extern int usb_devio_init(void); 175 extern void usb_devio_cleanup(void); 176 177 /* internal notify stuff */ 178 extern void usb_notify_add_device(struct usb_device *udev); 179 extern void usb_notify_remove_device(struct usb_device *udev); 180 extern void usb_notify_add_bus(struct usb_bus *ubus); 181 extern void usb_notify_remove_bus(struct usb_bus *ubus); 182 extern enum usb_port_connect_type 183 usb_get_hub_port_connect_type(struct usb_device *hdev, int port1); 184 extern void usb_set_hub_port_connect_type(struct usb_device *hdev, int port1, 185 enum usb_port_connect_type type); 186 extern void usb_hub_adjust_deviceremovable(struct usb_device *hdev, 187 struct usb_hub_descriptor *desc); 188 189 #ifdef CONFIG_ACPI 190 extern int usb_acpi_register(void); 191 extern void usb_acpi_unregister(void); 192 extern acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev, 193 int port1); 194 #else 195 static inline int usb_acpi_register(void) { return 0; }; 196 static inline void usb_acpi_unregister(void) { }; 197 #endif 198