root/drivers/usb/core/usb.h

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INCLUDED FROM


DEFINITIONS

This source file includes following definitions.
  1. usb_get_max_power
  2. usb_port_suspend
  3. usb_port_resume
  4. usb_autoresume_device
  5. usb_enable_usb2_hardware_lpm
  6. usb_disable_usb2_hardware_lpm
  7. is_usb_device
  8. is_usb_interface
  9. is_usb_endpoint
  10. is_usb_port
  11. is_root_hub
  12. is_usb_device_driver
  13. usb_acpi_register
  14. usb_acpi_unregister

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Released under the GPLv2 only.
   4  */
   5 
   6 #include <linux/pm.h>
   7 #include <linux/acpi.h>
   8 
   9 struct usb_hub_descriptor;
  10 struct usb_dev_state;
  11 
  12 /* Functions local to drivers/usb/core/ */
  13 
  14 extern int usb_create_sysfs_dev_files(struct usb_device *dev);
  15 extern void usb_remove_sysfs_dev_files(struct usb_device *dev);
  16 extern void usb_create_sysfs_intf_files(struct usb_interface *intf);
  17 extern void usb_remove_sysfs_intf_files(struct usb_interface *intf);
  18 extern int usb_create_ep_devs(struct device *parent,
  19                                 struct usb_host_endpoint *endpoint,
  20                                 struct usb_device *udev);
  21 extern void usb_remove_ep_devs(struct usb_host_endpoint *endpoint);
  22 
  23 extern void usb_enable_endpoint(struct usb_device *dev,
  24                 struct usb_host_endpoint *ep, bool reset_toggle);
  25 extern void usb_enable_interface(struct usb_device *dev,
  26                 struct usb_interface *intf, bool reset_toggles);
  27 extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr,
  28                 bool reset_hardware);
  29 extern void usb_disable_interface(struct usb_device *dev,
  30                 struct usb_interface *intf, bool reset_hardware);
  31 extern void usb_release_interface_cache(struct kref *ref);
  32 extern void usb_disable_device(struct usb_device *dev, int skip_ep0);
  33 extern int usb_deauthorize_device(struct usb_device *);
  34 extern int usb_authorize_device(struct usb_device *);
  35 extern void usb_deauthorize_interface(struct usb_interface *);
  36 extern void usb_authorize_interface(struct usb_interface *);
  37 extern void usb_detect_quirks(struct usb_device *udev);
  38 extern void usb_detect_interface_quirks(struct usb_device *udev);
  39 extern void usb_release_quirk_list(void);
  40 extern bool usb_endpoint_is_blacklisted(struct usb_device *udev,
  41                 struct usb_host_interface *intf,
  42                 struct usb_endpoint_descriptor *epd);
  43 extern int usb_remove_device(struct usb_device *udev);
  44 
  45 extern int usb_get_device_descriptor(struct usb_device *dev,
  46                 unsigned int size);
  47 extern int usb_set_isoch_delay(struct usb_device *dev);
  48 extern int usb_get_bos_descriptor(struct usb_device *dev);
  49 extern void usb_release_bos_descriptor(struct usb_device *dev);
  50 extern char *usb_cache_string(struct usb_device *udev, int index);
  51 extern int usb_set_configuration(struct usb_device *dev, int configuration);
  52 extern int usb_choose_configuration(struct usb_device *udev);
  53 
  54 static inline unsigned usb_get_max_power(struct usb_device *udev,
  55                 struct usb_host_config *c)
  56 {
  57         /* SuperSpeed power is in 8 mA units; others are in 2 mA units */
  58         unsigned mul = (udev->speed >= USB_SPEED_SUPER ? 8 : 2);
  59 
  60         return c->desc.bMaxPower * mul;
  61 }
  62 
  63 extern void usb_kick_hub_wq(struct usb_device *dev);
  64 extern int usb_match_one_id_intf(struct usb_device *dev,
  65                                  struct usb_host_interface *intf,
  66                                  const struct usb_device_id *id);
  67 extern int usb_match_device(struct usb_device *dev,
  68                             const struct usb_device_id *id);
  69 extern void usb_forced_unbind_intf(struct usb_interface *intf);
  70 extern void usb_unbind_and_rebind_marked_interfaces(struct usb_device *udev);
  71 
  72 extern void usb_hub_release_all_ports(struct usb_device *hdev,
  73                 struct usb_dev_state *owner);
  74 extern bool usb_device_is_owned(struct usb_device *udev);
  75 
  76 extern int  usb_hub_init(void);
  77 extern void usb_hub_cleanup(void);
  78 extern int usb_major_init(void);
  79 extern void usb_major_cleanup(void);
  80 extern int usb_device_supports_lpm(struct usb_device *udev);
  81 extern int usb_port_disable(struct usb_device *udev);
  82 
  83 #ifdef  CONFIG_PM
  84 
  85 extern int usb_suspend(struct device *dev, pm_message_t msg);
  86 extern int usb_resume(struct device *dev, pm_message_t msg);
  87 extern int usb_resume_complete(struct device *dev);
  88 
  89 extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
  90 extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
  91 
  92 extern void usb_autosuspend_device(struct usb_device *udev);
  93 extern int usb_autoresume_device(struct usb_device *udev);
  94 extern int usb_remote_wakeup(struct usb_device *dev);
  95 extern int usb_runtime_suspend(struct device *dev);
  96 extern int usb_runtime_resume(struct device *dev);
  97 extern int usb_runtime_idle(struct device *dev);
  98 extern int usb_enable_usb2_hardware_lpm(struct usb_device *udev);
  99 extern int usb_disable_usb2_hardware_lpm(struct usb_device *udev);
 100 
 101 extern void usbfs_notify_suspend(struct usb_device *udev);
 102 extern void usbfs_notify_resume(struct usb_device *udev);
 103 
 104 #else
 105 
 106 static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
 107 {
 108         return 0;
 109 }
 110 
 111 static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
 112 {
 113         return 0;
 114 }
 115 
 116 #define usb_autosuspend_device(udev)            do {} while (0)
 117 static inline int usb_autoresume_device(struct usb_device *udev)
 118 {
 119         return 0;
 120 }
 121 
 122 static inline int usb_enable_usb2_hardware_lpm(struct usb_device *udev)
 123 {
 124         return 0;
 125 }
 126 
 127 static inline int usb_disable_usb2_hardware_lpm(struct usb_device *udev)
 128 {
 129         return 0;
 130 }
 131 
 132 #endif
 133 
 134 extern struct bus_type usb_bus_type;
 135 extern struct mutex usb_port_peer_mutex;
 136 extern struct device_type usb_device_type;
 137 extern struct device_type usb_if_device_type;
 138 extern struct device_type usb_ep_device_type;
 139 extern struct device_type usb_port_device_type;
 140 extern struct usb_device_driver usb_generic_driver;
 141 
 142 static inline int is_usb_device(const struct device *dev)
 143 {
 144         return dev->type == &usb_device_type;
 145 }
 146 
 147 static inline int is_usb_interface(const struct device *dev)
 148 {
 149         return dev->type == &usb_if_device_type;
 150 }
 151 
 152 static inline int is_usb_endpoint(const struct device *dev)
 153 {
 154         return dev->type == &usb_ep_device_type;
 155 }
 156 
 157 static inline int is_usb_port(const struct device *dev)
 158 {
 159         return dev->type == &usb_port_device_type;
 160 }
 161 
 162 static inline int is_root_hub(struct usb_device *udev)
 163 {
 164         return (udev->parent == NULL);
 165 }
 166 
 167 /* Do the same for device drivers and interface drivers. */
 168 
 169 static inline int is_usb_device_driver(struct device_driver *drv)
 170 {
 171         return container_of(drv, struct usbdrv_wrap, driver)->
 172                         for_devices;
 173 }
 174 
 175 /* for labeling diagnostics */
 176 extern const char *usbcore_name;
 177 
 178 /* sysfs stuff */
 179 extern const struct attribute_group *usb_device_groups[];
 180 extern const struct attribute_group *usb_interface_groups[];
 181 
 182 /* usbfs stuff */
 183 extern struct usb_driver usbfs_driver;
 184 extern const struct file_operations usbfs_devices_fops;
 185 extern const struct file_operations usbdev_file_operations;
 186 extern void usbfs_conn_disc_event(void);
 187 
 188 extern int usb_devio_init(void);
 189 extern void usb_devio_cleanup(void);
 190 
 191 /*
 192  * Firmware specific cookie identifying a port's location. '0' == no location
 193  * data available
 194  */
 195 typedef u32 usb_port_location_t;
 196 
 197 /* internal notify stuff */
 198 extern void usb_notify_add_device(struct usb_device *udev);
 199 extern void usb_notify_remove_device(struct usb_device *udev);
 200 extern void usb_notify_add_bus(struct usb_bus *ubus);
 201 extern void usb_notify_remove_bus(struct usb_bus *ubus);
 202 extern void usb_hub_adjust_deviceremovable(struct usb_device *hdev,
 203                 struct usb_hub_descriptor *desc);
 204 
 205 #ifdef CONFIG_ACPI
 206 extern int usb_acpi_register(void);
 207 extern void usb_acpi_unregister(void);
 208 extern acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev,
 209         int port1);
 210 #else
 211 static inline int usb_acpi_register(void) { return 0; };
 212 static inline void usb_acpi_unregister(void) { };
 213 #endif

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