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system76-edk2/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbBus.h
Antoine Coeur 13a623cf9c MdeModulePkg/UsbBus: Fix various typos 
Fix various typos in comments and documentation.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Signed-off-by: Antoine Coeur <coeur@gmx.fr>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
Acked-by: Liming Gao <liming.gao@intel.com>
Signed-off-by: Philippe Mathieu-Daude <philmd@redhat.com>
Message-Id: <20200207010831.9046-22-philmd@redhat.com>
2020-02-10 22:30:07 +00:00

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/** @file
Usb Bus Driver Binding and Bus IO Protocol.
Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _EFI_USB_BUS_H_
#define _EFI_USB_BUS_H_
#include <Uefi.h>
#include <Protocol/Usb2HostController.h>
#include <Protocol/UsbHostController.h>
#include <Protocol/UsbIo.h>
#include <Protocol/DevicePath.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Library/DevicePathLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/ReportStatusCodeLib.h>
#include <IndustryStandard/Usb.h>
typedef struct _USB_DEVICE USB_DEVICE;
typedef struct _USB_INTERFACE USB_INTERFACE;
typedef struct _USB_BUS USB_BUS;
typedef struct _USB_HUB_API USB_HUB_API;
#include "UsbUtility.h"
#include "UsbDesc.h"
#include "UsbHub.h"
#include "UsbEnumer.h"
//
// USB bus timeout experience values
//
#define USB_MAX_LANG_ID 16
#define USB_MAX_INTERFACE 16
#define USB_MAX_DEVICES 128
#define USB_BUS_1_MILLISECOND 1000
//
// Roothub and hub's polling interval, set by experience,
// The unit of roothub is 100us, means 100ms as interval, and
// the unit of hub is 1ms, means 64ms as interval.
//
#define USB_ROOTHUB_POLL_INTERVAL (100 * 10000U)
#define USB_HUB_POLL_INTERVAL 64
//
// Wait for port stable to work, refers to specification
// [USB20-9.1.2]
//
#define USB_WAIT_PORT_STABLE_STALL (100 * USB_BUS_1_MILLISECOND)
//
// Wait for port statue reg change, set by experience
//
#define USB_WAIT_PORT_STS_CHANGE_STALL (100)
//
// Wait for set device address, refers to specification
// [USB20-9.2.6.3, it says 2ms]
//
#define USB_SET_DEVICE_ADDRESS_STALL (2 * USB_BUS_1_MILLISECOND)
//
// Wait for retry max packet size, set by experience
//
#define USB_RETRY_MAX_PACK_SIZE_STALL (100 * USB_BUS_1_MILLISECOND)
//
// Wait for hub port power-on, refers to specification
// [USB20-11.23.2]
//
#define USB_SET_PORT_POWER_STALL (2 * USB_BUS_1_MILLISECOND)
//
// Wait for port reset, refers to specification
// [USB20-7.1.7.5, it says 10ms for hub and 50ms for
// root hub]
//
// According to USB2.0, Chapter 11.5.1.5 Resetting,
// the worst case for TDRST is 20ms
//
#define USB_SET_PORT_RESET_STALL (20 * USB_BUS_1_MILLISECOND)
#define USB_SET_ROOT_PORT_RESET_STALL (50 * USB_BUS_1_MILLISECOND)
//
// Wait for port recovery to accept SetAddress, refers to specification
// [USB20-7.1.7.5, it says 10 ms for TRSTRCY]
//
#define USB_SET_PORT_RECOVERY_STALL (10 * USB_BUS_1_MILLISECOND)
//
// Wait for clear roothub port reset, set by experience
//
#define USB_CLR_ROOT_PORT_RESET_STALL (20 * USB_BUS_1_MILLISECOND)
//
// Wait for set roothub port enable, set by experience
//
#define USB_SET_ROOT_PORT_ENABLE_STALL (20 * USB_BUS_1_MILLISECOND)
//
// Send general device request timeout.
//
// The USB Specification 2.0, section 11.24.1 recommends a value of
// 50 milliseconds. We use a value of 500 milliseconds to work
// around slower hubs and devices.
//
#define USB_GENERAL_DEVICE_REQUEST_TIMEOUT 500
//
// Send clear feature request timeout, set by experience
//
#define USB_CLEAR_FEATURE_REQUEST_TIMEOUT 10
//
// Bus raises TPL to TPL_NOTIFY to serialize all its operations
// to protect shared data structures.
//
#define USB_BUS_TPL TPL_NOTIFY
#define USB_INTERFACE_SIGNATURE SIGNATURE_32 ('U', 'S', 'B', 'I')
#define USB_BUS_SIGNATURE SIGNATURE_32 ('U', 'S', 'B', 'B')
#define USB_BIT(a) ((UINTN)(1 << (a)))
#define USB_BIT_IS_SET(Data, Bit) ((BOOLEAN)(((Data) & (Bit)) == (Bit)))
#define USB_INTERFACE_FROM_USBIO(a) \
CR(a, USB_INTERFACE, UsbIo, USB_INTERFACE_SIGNATURE)
#define USB_BUS_FROM_THIS(a) \
CR(a, USB_BUS, BusId, USB_BUS_SIGNATURE)
//
// Used to locate USB_BUS
// UsbBusProtocol is the private protocol.
// gEfiCallerIdGuid will be used as its protocol guid.
//
typedef struct _EFI_USB_BUS_PROTOCOL {
UINT64 Reserved;
} EFI_USB_BUS_PROTOCOL;
//
// Stands for the real USB device. Each device may
// has several separately working interfaces.
//
struct _USB_DEVICE {
USB_BUS *Bus;
//
// Configuration information
//
UINT8 Speed;
UINT8 Address;
UINT32 MaxPacket0;
//
// The device's descriptors and its configuration
//
USB_DEVICE_DESC *DevDesc;
USB_CONFIG_DESC *ActiveConfig;
UINT16 LangId [USB_MAX_LANG_ID];
UINT16 TotalLangId;
UINT8 NumOfInterface;
USB_INTERFACE *Interfaces [USB_MAX_INTERFACE];
//
// Parent child relationship
//
EFI_USB2_HC_TRANSACTION_TRANSLATOR Translator;
UINT8 ParentAddr;
USB_INTERFACE *ParentIf;
UINT8 ParentPort; // Start at 0
UINT8 Tier;
BOOLEAN DisconnectFail;
};
//
// Stands for different functions of USB device
//
struct _USB_INTERFACE {
UINTN Signature;
USB_DEVICE *Device;
USB_INTERFACE_DESC *IfDesc;
USB_INTERFACE_SETTING *IfSetting;
//
// Handles and protocols
//
EFI_HANDLE Handle;
EFI_USB_IO_PROTOCOL UsbIo;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
BOOLEAN IsManaged;
//
// Hub device special data
//
BOOLEAN IsHub;
USB_HUB_API *HubApi;
UINT8 NumOfPort;
EFI_EVENT HubNotify;
//
// Data used only by normal hub devices
//
USB_ENDPOINT_DESC *HubEp;
UINT8 *ChangeMap;
//
// Data used only by root hub to hand over device to
// companion UHCI driver if low/full speed devices are
// connected to EHCI.
//
UINT8 MaxSpeed;
};
//
// Stands for the current USB Bus
//
struct _USB_BUS {
UINTN Signature;
EFI_USB_BUS_PROTOCOL BusId;
//
// Managed USB host controller
//
EFI_HANDLE HostHandle;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_USB2_HC_PROTOCOL *Usb2Hc;
EFI_USB_HC_PROTOCOL *UsbHc;
//
// Recorded the max supported usb devices.
// XHCI can support up to 255 devices.
// EHCI/UHCI/OHCI supports up to 127 devices.
//
UINT32 MaxDevices;
//
// An array of device that is on the bus. Devices[0] is
// for root hub. Device with address i is at Devices[i].
//
USB_DEVICE *Devices[256];
//
// USB Bus driver need to control the recursive connect policy of the bus, only those wanted
// usb child device will be recursively connected.
//
// WantedUsbIoDPList tracks the Usb child devices which user want to recursively fully connecte,
// every wanted child device is stored in a item of the WantedUsbIoDPList, whose structure is
// DEVICE_PATH_LIST_ITEM
//
LIST_ENTRY WantedUsbIoDPList;
};
//
// USB Hub Api
//
struct _USB_HUB_API{
USB_HUB_INIT Init;
USB_HUB_GET_PORT_STATUS GetPortStatus;
USB_HUB_CLEAR_PORT_CHANGE ClearPortChange;
USB_HUB_SET_PORT_FEATURE SetPortFeature;
USB_HUB_CLEAR_PORT_FEATURE ClearPortFeature;
USB_HUB_RESET_PORT ResetPort;
USB_HUB_RELEASE Release;
};
#define USB_US_LAND_ID 0x0409
#define DEVICE_PATH_LIST_ITEM_SIGNATURE SIGNATURE_32('d','p','l','i')
typedef struct _DEVICE_PATH_LIST_ITEM{
UINTN Signature;
LIST_ENTRY Link;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
} DEVICE_PATH_LIST_ITEM;
typedef struct {
USB_CLASS_DEVICE_PATH UsbClass;
EFI_DEVICE_PATH_PROTOCOL End;
} USB_CLASS_FORMAT_DEVICE_PATH;
/**
Free a DEVICE_PATH_LIST_ITEM list.
@param UsbIoDPList a DEVICE_PATH_LIST_ITEM list pointer.
@retval EFI_INVALID_PARAMETER If parameters are invalid, return this value.
@retval EFI_SUCCESS If free operation is successful, return this value.
**/
EFI_STATUS
EFIAPI
UsbBusFreeUsbDPList (
IN LIST_ENTRY *UsbIoDPList
);
/**
Store a wanted usb child device info (its Usb part of device path) which is indicated by
RemainingDevicePath in a Usb bus which is indicated by UsbBusId.
@param UsbBusId Point to EFI_USB_BUS_PROTOCOL interface.
@param RemainingDevicePath The remaining device patch.
@retval EFI_SUCCESS Add operation is successful.
@retval EFI_INVALID_PARAMETER The parameters are invalid.
**/
EFI_STATUS
EFIAPI
UsbBusAddWantedUsbIoDP (
IN EFI_USB_BUS_PROTOCOL *UsbBusId,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Check whether a usb child device is the wanted device in a bus.
@param Bus The Usb bus's private data pointer.
@param UsbIf The usb child device interface.
@retval True If a usb child device is the wanted device in a bus.
@retval False If a usb child device is *NOT* the wanted device in a bus.
**/
BOOLEAN
EFIAPI
UsbBusIsWantedUsbIO (
IN USB_BUS *Bus,
IN USB_INTERFACE *UsbIf
);
/**
Recursively connect every wanted usb child device to ensure they all fully connected.
Check all the child Usb IO handles in this bus, recursively connecte if it is wanted usb child device.
@param UsbBusId Point to EFI_USB_BUS_PROTOCOL interface.
@retval EFI_SUCCESS Connect is done successfully.
@retval EFI_INVALID_PARAMETER The parameter is invalid.
**/
EFI_STATUS
EFIAPI
UsbBusRecursivelyConnectWantedUsbIo (
IN EFI_USB_BUS_PROTOCOL *UsbBusId
);
/**
USB_IO function to execute a control transfer. This
function will execute the USB transfer. If transfer
successes, it will sync the internal state of USB bus
with device state.
@param This The USB_IO instance
@param Request The control transfer request
@param Direction Direction for data stage
@param Timeout The time to wait before timeout
@param Data The buffer holding the data
@param DataLength Then length of the data
@param UsbStatus USB result
@retval EFI_INVALID_PARAMETER The parameters are invalid
@retval EFI_SUCCESS The control transfer succeded.
@retval Others Failed to execute the transfer
**/
EFI_STATUS
EFIAPI
UsbIoControlTransfer (
IN EFI_USB_IO_PROTOCOL *This,
IN EFI_USB_DEVICE_REQUEST *Request,
IN EFI_USB_DATA_DIRECTION Direction,
IN UINT32 Timeout,
IN OUT VOID *Data, OPTIONAL
IN UINTN DataLength, OPTIONAL
OUT UINT32 *UsbStatus
);
/**
Execute a bulk transfer to the device endpoint.
@param This The USB IO instance.
@param Endpoint The device endpoint.
@param Data The data to transfer.
@param DataLength The length of the data to transfer.
@param Timeout Time to wait before timeout.
@param UsbStatus The result of USB transfer.
@retval EFI_SUCCESS The bulk transfer is OK.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval Others Failed to execute transfer, reason returned in
UsbStatus.
**/
EFI_STATUS
EFIAPI
UsbIoBulkTransfer (
IN EFI_USB_IO_PROTOCOL *This,
IN UINT8 Endpoint,
IN OUT VOID *Data,
IN OUT UINTN *DataLength,
IN UINTN Timeout,
OUT UINT32 *UsbStatus
);
/**
Execute a synchronous interrupt transfer.
@param This The USB IO instance.
@param Endpoint The device endpoint.
@param Data The data to transfer.
@param DataLength The length of the data to transfer.
@param Timeout Time to wait before timeout.
@param UsbStatus The result of USB transfer.
@retval EFI_SUCCESS The synchronous interrupt transfer is OK.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval Others Failed to execute transfer, reason returned in
UsbStatus.
**/
EFI_STATUS
EFIAPI
UsbIoSyncInterruptTransfer (
IN EFI_USB_IO_PROTOCOL *This,
IN UINT8 Endpoint,
IN OUT VOID *Data,
IN OUT UINTN *DataLength,
IN UINTN Timeout,
OUT UINT32 *UsbStatus
);
/**
Queue a new asynchronous interrupt transfer, or remove the old
request if (IsNewTransfer == FALSE).
@param This The USB_IO instance.
@param Endpoint The device endpoint.
@param IsNewTransfer Whether this is a new request, if it's old, remove
the request.
@param PollInterval The interval to poll the transfer result, (in ms).
@param DataLength The length of perodic data transfer.
@param Callback The function to call periodically when transfer is
ready.
@param Context The context to the callback.
@retval EFI_SUCCESS New transfer is queued or old request is removed.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval Others Failed to queue the new request or remove the old
request.
**/
EFI_STATUS
EFIAPI
UsbIoAsyncInterruptTransfer (
IN EFI_USB_IO_PROTOCOL *This,
IN UINT8 Endpoint,
IN BOOLEAN IsNewTransfer,
IN UINTN PollInterval, OPTIONAL
IN UINTN DataLength, OPTIONAL
IN EFI_ASYNC_USB_TRANSFER_CALLBACK Callback, OPTIONAL
IN VOID *Context OPTIONAL
);
/**
Execute a synchronous isochronous transfer.
@param This The USB IO instance.
@param DeviceEndpoint The device endpoint.
@param Data The data to transfer.
@param DataLength The length of the data to transfer.
@param UsbStatus The result of USB transfer.
@retval EFI_UNSUPPORTED Currently isochronous transfer isn't supported.
**/
EFI_STATUS
EFIAPI
UsbIoIsochronousTransfer (
IN EFI_USB_IO_PROTOCOL *This,
IN UINT8 DeviceEndpoint,
IN OUT VOID *Data,
IN UINTN DataLength,
OUT UINT32 *Status
);
/**
Queue an asynchronous isochronous transfer.
@param This The USB_IO instance.
@param DeviceEndpoint The device endpoint.
@param Data The data to transfer.
@param DataLength The length of perodic data transfer.
@param IsochronousCallBack The function to call periodically when transfer is
ready.
@param Context The context to the callback.
@retval EFI_UNSUPPORTED Currently isochronous transfer isn't supported.
**/
EFI_STATUS
EFIAPI
UsbIoAsyncIsochronousTransfer (
IN EFI_USB_IO_PROTOCOL *This,
IN UINT8 DeviceEndpoint,
IN OUT VOID *Data,
IN UINTN DataLength,
IN EFI_ASYNC_USB_TRANSFER_CALLBACK IsochronousCallBack,
IN VOID *Context OPTIONAL
);
/**
Retrieve the device descriptor of the device.
@param This The USB IO instance.
@param Descriptor The variable to receive the device descriptor.
@retval EFI_SUCCESS The device descriptor is returned.
@retval EFI_INVALID_PARAMETER The parameter is invalid.
**/
EFI_STATUS
EFIAPI
UsbIoGetDeviceDescriptor (
IN EFI_USB_IO_PROTOCOL *This,
OUT EFI_USB_DEVICE_DESCRIPTOR *Descriptor
);
/**
Return the configuration descriptor of the current active configuration.
@param This The USB IO instance.
@param Descriptor The USB configuration descriptor.
@retval EFI_SUCCESS The active configuration descriptor is returned.
@retval EFI_INVALID_PARAMETER Some parameter is invalid.
@retval EFI_NOT_FOUND Currently no active configuration is selected.
**/
EFI_STATUS
EFIAPI
UsbIoGetActiveConfigDescriptor (
IN EFI_USB_IO_PROTOCOL *This,
OUT EFI_USB_CONFIG_DESCRIPTOR *Descriptor
);
/**
Retrieve the active interface setting descriptor for this USB IO instance.
@param This The USB IO instance.
@param Descriptor The variable to receive active interface setting.
@retval EFI_SUCCESS The active interface setting is returned.
@retval EFI_INVALID_PARAMETER Some parameter is invalid.
**/
EFI_STATUS
EFIAPI
UsbIoGetInterfaceDescriptor (
IN EFI_USB_IO_PROTOCOL *This,
OUT EFI_USB_INTERFACE_DESCRIPTOR *Descriptor
);
/**
Retrieve the endpoint descriptor from this interface setting.
@param This The USB IO instance.
@param Index The index (start from zero) of the endpoint to
retrieve.
@param Descriptor The variable to receive the descriptor.
@retval EFI_SUCCESS The endpoint descriptor is returned.
@retval EFI_INVALID_PARAMETER Some parameter is invalid.
**/
EFI_STATUS
EFIAPI
UsbIoGetEndpointDescriptor (
IN EFI_USB_IO_PROTOCOL *This,
IN UINT8 Index,
OUT EFI_USB_ENDPOINT_DESCRIPTOR *Descriptor
);
/**
Retrieve the supported language ID table from the device.
@param This The USB IO instance.
@param LangIDTable The table to return the language IDs.
@param TableSize The size, in bytes, of the table LangIDTable.
@retval EFI_SUCCESS The language ID is return.
**/
EFI_STATUS
EFIAPI
UsbIoGetSupportedLanguages (
IN EFI_USB_IO_PROTOCOL *This,
OUT UINT16 **LangIDTable,
OUT UINT16 *TableSize
);
/**
Retrieve an indexed string in the language of LangID.
@param This The USB IO instance.
@param LangID The language ID of the string to retrieve.
@param StringIndex The index of the string.
@param String The variable to receive the string.
@retval EFI_SUCCESS The string is returned.
@retval EFI_NOT_FOUND No such string existed.
**/
EFI_STATUS
EFIAPI
UsbIoGetStringDescriptor (
IN EFI_USB_IO_PROTOCOL *This,
IN UINT16 LangID,
IN UINT8 StringIndex,
OUT CHAR16 **String
);
/**
Reset the device, then if that succeeds, reconfigure the
device with its address and current active configuration.
@param This The USB IO instance.
@retval EFI_SUCCESS The device is reset and configured.
@retval Others Failed to reset the device.
**/
EFI_STATUS
EFIAPI
UsbIoPortReset (
IN EFI_USB_IO_PROTOCOL *This
);
/**
Install Usb Bus Protocol on host controller, and start the Usb bus.
@param This The USB bus driver binding instance.
@param Controller The controller to check.
@param RemainingDevicePath The remaining device patch.
@retval EFI_SUCCESS The controller is controlled by the usb bus.
@retval EFI_ALREADY_STARTED The controller is already controlled by the usb bus.
@retval EFI_OUT_OF_RESOURCES Failed to allocate resources.
**/
EFI_STATUS
EFIAPI
UsbBusBuildProtocol (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
The USB bus driver entry pointer.
@param ImageHandle The driver image handle.
@param SystemTable The system table.
@return EFI_SUCCESS The component name protocol is installed.
@return Others Failed to init the usb driver.
**/
EFI_STATUS
EFIAPI
UsbBusDriverEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
);
/**
Check whether USB bus driver support this device.
@param This The USB bus driver binding protocol.
@param Controller The controller handle to check.
@param RemainingDevicePath The remaining device path.
@retval EFI_SUCCESS The bus supports this controller.
@retval EFI_UNSUPPORTED This device isn't supported.
**/
EFI_STATUS
EFIAPI
UsbBusControllerDriverSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Start to process the controller.
@param This The USB bus driver binding instance.
@param Controller The controller to check.
@param RemainingDevicePath The remaining device patch.
@retval EFI_SUCCESS The controller is controlled by the usb bus.
@retval EFI_ALREADY_STARTED The controller is already controlled by the usb
bus.
@retval EFI_OUT_OF_RESOURCES Failed to allocate resources.
**/
EFI_STATUS
EFIAPI
UsbBusControllerDriverStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Stop handle the controller by this USB bus driver.
@param This The USB bus driver binding protocol.
@param Controller The controller to release.
@param NumberOfChildren The child of USB bus that opened controller
BY_CHILD.
@param ChildHandleBuffer The array of child handle.
@retval EFI_SUCCESS The controller or children are stopped.
@retval EFI_DEVICE_ERROR Failed to stop the driver.
**/
EFI_STATUS
EFIAPI
UsbBusControllerDriverStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
);
extern EFI_USB_IO_PROTOCOL mUsbIoProtocol;
extern EFI_DRIVER_BINDING_PROTOCOL mUsbBusDriverBinding;
extern EFI_COMPONENT_NAME_PROTOCOL mUsbBusComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL mUsbBusComponentName2;
#endif
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