MdePkg/Library/UefiUsbLib/UsbDxeLib.c File Reference


Functions

EFI_STATUS EFIAPI UsbGetDescriptor (IN EFI_USB_IO_PROTOCOL *UsbIo, IN UINT16 Value, IN UINT16 Index, IN UINT16 DescriptorLength, OUT VOID *Descriptor, OUT UINT32 *Status)
EFI_STATUS EFIAPI UsbSetDescriptor (IN EFI_USB_IO_PROTOCOL *UsbIo, IN UINT16 Value, IN UINT16 Index, IN UINT16 DescriptorLength, IN VOID *Descriptor, OUT UINT32 *Status)
EFI_STATUS EFIAPI UsbGetInterface (IN EFI_USB_IO_PROTOCOL *UsbIo, IN UINT16 Interface, OUT UINT16 *AlternateSetting, OUT UINT32 *Status)
EFI_STATUS EFIAPI UsbSetInterface (IN EFI_USB_IO_PROTOCOL *UsbIo, IN UINT16 Interface, IN UINT16 AlternateSetting, OUT UINT32 *Status)
EFI_STATUS EFIAPI UsbGetConfiguration (IN EFI_USB_IO_PROTOCOL *UsbIo, OUT UINT16 *ConfigurationValue, OUT UINT32 *Status)
EFI_STATUS EFIAPI UsbSetConfiguration (IN EFI_USB_IO_PROTOCOL *UsbIo, IN UINT16 ConfigurationValue, OUT UINT32 *Status)
EFI_STATUS EFIAPI UsbSetFeature (IN EFI_USB_IO_PROTOCOL *UsbIo, IN USB_TYPES_DEFINITION Recipient, IN UINT16 Value, IN UINT16 Target, OUT UINT32 *Status)
EFI_STATUS EFIAPI UsbClearFeature (IN EFI_USB_IO_PROTOCOL *UsbIo, IN USB_TYPES_DEFINITION Recipient, IN UINT16 Value, IN UINT16 Target, OUT UINT32 *Status)
EFI_STATUS EFIAPI UsbGetStatus (IN EFI_USB_IO_PROTOCOL *UsbIo, IN USB_TYPES_DEFINITION Recipient, IN UINT16 Target, OUT UINT16 *DeviceStatus, OUT UINT32 *Status)
EFI_STATUS EFIAPI UsbClearEndpointHalt (IN EFI_USB_IO_PROTOCOL *UsbIo, IN UINT8 Endpoint, OUT UINT32 *Status)

Detailed Description

The library provides the USB Standard Device Requests defined in Usb specification 9.4 section.

Copyright (c) 2004 - 2008, Intel Corporation. All rights reserved.
This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License which accompanies this distribution. The full text of the license may be found at http://opensource.org/licenses/bsd-license.php.

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.


Function Documentation

EFI_STATUS EFIAPI UsbClearEndpointHalt ( IN EFI_USB_IO_PROTOCOL UsbIo,
IN UINT8  Endpoint,
OUT UINT32 Status 
)

Clear halt feature of the specified usb endpoint.

Retrieve the USB endpoint descriptor specified by UsbIo and EndPoint. If the USB endpoint descriptor can not be retrieved, then return EFI_NOT_FOUND. If the endpoint descriptor is found, then clear the halt feature of this USB endpoint. The status of the transfer is returned in Status. If UsbIo is NULL, then ASSERT(). If Status is NULL, then ASSERT().

Parameters:
UsbIo A pointer to the USB I/O Protocol instance for the specific USB target.
Endpoint The endpoint address.
Status A pointer to the status of the transfer.
Return values:
EFI_SUCCESS The request executed successfully.
EFI_TIMEOUT A timeout occurred executing the request.
EFI_DEVICE_ERROR The request failed due to a device error. The transfer status is returned in Status.
EFI_NOT_FOUND The specified USB endpoint descriptor can not be found

References ASSERT, EFI_ERROR, EFI_NOT_FOUND, USB_ENDPOINT_DESCRIPTOR::EndpointAddress, NULL, USB_INTERFACE_DESCRIPTOR::NumEndpoints, USB_FEATURE_ENDPOINT_HALT, USB_TARGET_ENDPOINT, UsbClearFeature(), and ZeroMem().

EFI_STATUS EFIAPI UsbClearFeature ( IN EFI_USB_IO_PROTOCOL UsbIo,
IN USB_TYPES_DEFINITION  Recipient,
IN UINT16  Value,
IN UINT16  Target,
OUT UINT32 Status 
)

Clear the specified feature of the specified device.

Submit a USB clear device feature request for the USB device specified by UsbIo, Recipient, and Target to the value specified by Value. The status of the transfer is returned in Status. If UsbIo is NULL, then ASSERT(). If Status is NULL, then ASSERT().

Parameters:
UsbIo A pointer to the USB I/O Protocol instance for the specific USB target.
Recipient The USB data recipient type (i.e. Device, Interface, Endpoint). Type USB_TYPES_DEFINITION is defined in the MDE Package Industry Standard include file Usb.h.
Value The value of the feature to be cleared.
Target The index of the device to be cleared.
Status A pointer to the status of the transfer.
Return values:
EFI_SUCCESS The request executed successfully.
EFI_TIMEOUT A timeout occurred executing the request.
EFI_DEVICE_ERROR The request failed due to a device error. The transfer status is returned in Status.

References ASSERT, EfiUsbNoData, USB_DEVICE_REQUEST::Index, NULL, PcdGet32, USB_DEVICE_REQUEST::Request, USB_DEVICE_REQUEST::RequestType, USB_DEV_CLEAR_FEATURE_REQ_TYPE_D, USB_DEV_CLEAR_FEATURE_REQ_TYPE_E, USB_DEV_CLEAR_FEATURE_REQ_TYPE_I, USB_REQ_CLEAR_FEATURE, USB_TARGET_DEVICE, USB_TARGET_ENDPOINT, USB_TARGET_INTERFACE, USB_DEVICE_REQUEST::Value, and ZeroMem().

Referenced by UsbClearEndpointHalt().

EFI_STATUS EFIAPI UsbGetConfiguration ( IN EFI_USB_IO_PROTOCOL UsbIo,
OUT UINT16 ConfigurationValue,
OUT UINT32 Status 
)

Get the device configuration.

Submit a USB get configuration request for the USB device specified by UsbIo and place the result in the buffer specified by ConfigurationValue. The status of the transfer is returned in Status. If UsbIo is NULL, then ASSERT(). If ConfigurationValue is NULL, then ASSERT(). If Status is NULL, then ASSERT().

Parameters:
UsbIo A pointer to the USB I/O Protocol instance for the specific USB target.
ConfigurationValue A pointer to the device configuration to be retrieved.
Status A pointer to the status of the transfer.
Return values:
EFI_SUCCESS The request executed successfully.
EFI_TIMEOUT A timeout occurred executing the request.
EFI_DEVICE_ERROR The request failed due to a device error. The transfer status is returned in Status.

References ASSERT, EfiUsbDataIn, USB_DEVICE_REQUEST::Length, NULL, PcdGet32, USB_DEVICE_REQUEST::Request, USB_DEVICE_REQUEST::RequestType, USB_DEV_GET_CONFIGURATION_REQ_TYPE, USB_REQ_GET_CONFIG, and ZeroMem().

EFI_STATUS EFIAPI UsbGetDescriptor ( IN EFI_USB_IO_PROTOCOL UsbIo,
IN UINT16  Value,
IN UINT16  Index,
IN UINT16  DescriptorLength,
OUT VOID *  Descriptor,
OUT UINT32 Status 
)

Get the descriptor of the specified USB device.

Submit a USB get descriptor request for the USB device specified by UsbIo, Value, and Index, and return the descriptor in the buffer specified by Descriptor. The status of the transfer is returned in Status. If UsbIo is NULL, then ASSERT(). If Descriptor is NULL, then ASSERT(). If Status is NULL, then ASSERT().

Parameters:
UsbIo A pointer to the USB I/O Protocol instance for the specific USB target.
Value The device request value.
Index The device request index.
DescriptorLength The size, in bytes, of Descriptor.
Descriptor A pointer to the descriptor buffer to get.
Status A pointer to the status of the transfer.
Return values:
EFI_SUCCESS The request executed successfully.
EFI_OUT_OF_RESOURCES The request could not be completed because the buffer specified by DescriptorLength and Descriptor is not large enough to hold the result of the request.
EFI_TIMEOUT A timeout occurred executing the request.
EFI_DEVICE_ERROR The request failed due to a device error. The transfer status is returned in Status.

References ASSERT, EfiUsbDataIn, USB_DEVICE_REQUEST::Index, USB_DEVICE_REQUEST::Length, NULL, PcdGet32, USB_DEVICE_REQUEST::Request, USB_DEVICE_REQUEST::RequestType, USB_DEV_GET_DESCRIPTOR_REQ_TYPE, USB_REQ_GET_DESCRIPTOR, USB_DEVICE_REQUEST::Value, and ZeroMem().

EFI_STATUS EFIAPI UsbGetInterface ( IN EFI_USB_IO_PROTOCOL UsbIo,
IN UINT16  Interface,
OUT UINT16 AlternateSetting,
OUT UINT32 Status 
)

Get the interface setting of the specified USB device.

Submit a USB get interface request for the USB device specified by UsbIo, and Interface, and place the result in the buffer specified by AlternateSetting. The status of the transfer is returned in Status. If UsbIo is NULL, then ASSERT(). If AlternateSetting is NULL, then ASSERT(). If Status is NULL, then ASSERT().

Parameters:
UsbIo A pointer to the USB I/O Protocol instance for the specific USB target.
Interface The interface index value.
AlternateSetting A pointer to the alternate setting to be retrieved.
Status A pointer to the status of the transfer.
Return values:
EFI_SUCCESS The request executed successfully.
EFI_TIMEOUT A timeout occurred executing the request.
EFI_DEVICE_ERROR The request failed due to a device error. The transfer status is returned in Status.

References ASSERT, EfiUsbDataIn, USB_DEVICE_REQUEST::Index, USB_DEVICE_REQUEST::Length, NULL, PcdGet32, USB_DEVICE_REQUEST::Request, USB_DEVICE_REQUEST::RequestType, USB_DEV_GET_INTERFACE_REQ_TYPE, USB_REQ_GET_INTERFACE, and ZeroMem().

EFI_STATUS EFIAPI UsbGetStatus ( IN EFI_USB_IO_PROTOCOL UsbIo,
IN USB_TYPES_DEFINITION  Recipient,
IN UINT16  Target,
OUT UINT16 DeviceStatus,
OUT UINT32 Status 
)

Get the status of the specified device.

Submit a USB device get status request for the USB device specified by UsbIo, Recipient, and Target and place the result in the buffer specified by DeviceStatus. The status of the transfer is returned in Status. If UsbIo is NULL, then ASSERT(). If DeviceStatus is NULL, then ASSERT(). If Status is NULL, then ASSERT().

Parameters:
UsbIo A pointer to the USB I/O Protocol instance for the specific USB target.
Recipient The USB data recipient type (i.e. Device, Interface, Endpoint). Type USB_TYPES_DEFINITION is defined in the MDE Package Industry Standard include file Usb.h.
Target The index of the device to be get the status of.
DeviceStatus A pointer to the device status to be retrieved.
Status A pointer to the status of the transfer.
Return values:
EFI_SUCCESS The request executed successfully.
EFI_TIMEOUT A timeout occurred executing the request.
EFI_DEVICE_ERROR The request failed due to a device error. The transfer status is returned in Status.

References ASSERT, EfiUsbDataIn, USB_DEVICE_REQUEST::Index, USB_DEVICE_REQUEST::Length, NULL, PcdGet32, USB_DEVICE_REQUEST::Request, USB_DEVICE_REQUEST::RequestType, USB_DEV_GET_STATUS_REQ_TYPE_D, USB_DEV_GET_STATUS_REQ_TYPE_E, USB_DEV_GET_STATUS_REQ_TYPE_I, USB_REQ_GET_STATUS, USB_TARGET_DEVICE, USB_TARGET_ENDPOINT, USB_TARGET_INTERFACE, USB_DEVICE_REQUEST::Value, and ZeroMem().

EFI_STATUS EFIAPI UsbSetConfiguration ( IN EFI_USB_IO_PROTOCOL UsbIo,
IN UINT16  ConfigurationValue,
OUT UINT32 Status 
)

Set the device configuration.

Submit a USB set configuration request for the USB device specified by UsbIo and set the device configuration to the value specified by ConfigurationValue. The status of the transfer is returned in Status. If UsbIo is NULL, then ASSERT(). If Status is NULL, then ASSERT().

Parameters:
UsbIo A pointer to the USB I/O Protocol instance for the specific USB target.
ConfigurationValue The device configuration value to be set.
Status A pointer to the status of the transfer.
Return values:
EFI_SUCCESS The request executed successfully.
EFI_TIMEOUT A timeout occurred executing the request.
EFI_DEVICE_ERROR The request failed due to a device error. The transfer status is returned in Status.

References ASSERT, EfiUsbNoData, NULL, PcdGet32, USB_DEVICE_REQUEST::Request, USB_DEVICE_REQUEST::RequestType, USB_DEV_SET_CONFIGURATION_REQ_TYPE, USB_REQ_SET_CONFIG, USB_DEVICE_REQUEST::Value, and ZeroMem().

EFI_STATUS EFIAPI UsbSetDescriptor ( IN EFI_USB_IO_PROTOCOL UsbIo,
IN UINT16  Value,
IN UINT16  Index,
IN UINT16  DescriptorLength,
IN VOID *  Descriptor,
OUT UINT32 Status 
)

Set the descriptor of the specified USB device.

Submit a USB set descriptor request for the USB device specified by UsbIo, Value, and Index, and set the descriptor using the buffer specified by DesriptorLength and Descriptor. The status of the transfer is returned in Status. If UsbIo is NULL, then ASSERT(). If Descriptor is NULL, then ASSERT(). If Status is NULL, then ASSERT().

Parameters:
UsbIo A pointer to the USB I/O Protocol instance for the specific USB target.
Value The device request value.
Index The device request index.
DescriptorLength The size, in bytes, of Descriptor.
Descriptor A pointer to the descriptor buffer to set.
Status A pointer to the status of the transfer.
Return values:
EFI_SUCCESS The request executed successfully.
EFI_TIMEOUT A timeout occurred executing the request.
EFI_DEVICE_ERROR The request failed due to a device error. The transfer status is returned in Status.

References ASSERT, EfiUsbDataOut, USB_DEVICE_REQUEST::Index, USB_DEVICE_REQUEST::Length, NULL, PcdGet32, USB_DEVICE_REQUEST::Request, USB_DEVICE_REQUEST::RequestType, USB_DEV_SET_DESCRIPTOR_REQ_TYPE, USB_REQ_SET_DESCRIPTOR, USB_DEVICE_REQUEST::Value, and ZeroMem().

EFI_STATUS EFIAPI UsbSetFeature ( IN EFI_USB_IO_PROTOCOL UsbIo,
IN USB_TYPES_DEFINITION  Recipient,
IN UINT16  Value,
IN UINT16  Target,
OUT UINT32 Status 
)

Set the specified feature of the specified device.

Submit a USB set device feature request for the USB device specified by UsbIo, Recipient, and Target to the value specified by Value. The status of the transfer is returned in Status. If UsbIo is NULL, then ASSERT(). If Status is NULL, then ASSERT().

Parameters:
UsbIo A pointer to the USB I/O Protocol instance for the specific USB target.
Recipient The USB data recipient type (i.e. Device, Interface, Endpoint). Type USB_TYPES_DEFINITION is defined in the MDE Package Industry Standard include file Usb.h.
Value The value of the feature to be set.
Target The index of the device to be set.
Status A pointer to the status of the transfer.
Return values:
EFI_SUCCESS The request executed successfully.
EFI_TIMEOUT A timeout occurred executing the request.
EFI_DEVICE_ERROR The request failed due to a device error. The transfer status is returned in Status.

References ASSERT, EfiUsbNoData, USB_DEVICE_REQUEST::Index, NULL, PcdGet32, USB_DEVICE_REQUEST::Request, USB_DEVICE_REQUEST::RequestType, USB_DEV_SET_FEATURE_REQ_TYPE_D, USB_DEV_SET_FEATURE_REQ_TYPE_E, USB_DEV_SET_FEATURE_REQ_TYPE_I, USB_REQ_SET_FEATURE, USB_TARGET_DEVICE, USB_TARGET_ENDPOINT, USB_TARGET_INTERFACE, USB_DEVICE_REQUEST::Value, and ZeroMem().

EFI_STATUS EFIAPI UsbSetInterface ( IN EFI_USB_IO_PROTOCOL UsbIo,
IN UINT16  Interface,
IN UINT16  AlternateSetting,
OUT UINT32 Status 
)

Set the interface setting of the specified USB device.

Submit a USB set interface request for the USB device specified by UsbIo, and Interface, and set the alternate setting to the value specified by AlternateSetting. The status of the transfer is returned in Status. If UsbIo is NULL, then ASSERT(). If Status is NULL, then ASSERT().

Parameters:
UsbIo A pointer to the USB I/O Protocol instance for the specific USB target.
Interface The interface index value.
AlternateSetting The alternate setting to be set.
Status A pointer to the status of the transfer.
Return values:
EFI_SUCCESS The request executed successfully.
EFI_TIMEOUT A timeout occurred executing the request.
EFI_SUCCESS The request failed due to a device error. The transfer status is returned in Status.

References ASSERT, EfiUsbNoData, USB_DEVICE_REQUEST::Index, NULL, PcdGet32, USB_DEVICE_REQUEST::Request, USB_DEVICE_REQUEST::RequestType, USB_DEV_SET_INTERFACE_REQ_TYPE, USB_REQ_SET_INTERFACE, USB_DEVICE_REQUEST::Value, and ZeroMem().


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