UsbIoPeim.c revision 4fd606d1f5abe38e1f42c38de1d2e895166bd0f4
/** @file
The module is used to implement Usb Io PPI interfaces.
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved. <BR>
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
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "UsbPeim.h"
#include "PeiUsbLib.h"
/**
Submits control transfer to a target USB device.
@param PeiServices The pointer of EFI_PEI_SERVICES.
@param This The pointer of PEI_USB_IO_PPI.
@param Request USB device request to send.
@param Direction Specifies the data direction for the data stage.
@param Timeout Indicates the maximum timeout, in millisecond.
@param Data Data buffer to be transmitted or received from USB device.
@param DataLength The size (in bytes) of the data buffer.
@retval EFI_SUCCESS Transfer was completed successfully.
@retval EFI_OUT_OF_RESOURCES The transfer failed due to lack of resources.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval EFI_TIMEOUT Transfer failed due to timeout.
@retval EFI_DEVICE_ERROR Transfer failed due to host controller or device error.
**/
)
{
Data,
&(PeiUsbDev->Translator),
);
} else {
Data,
);
}
return Status;
}
/**
Submits bulk transfer to a bulk endpoint of a USB device.
@param PeiServices The pointer of EFI_PEI_SERVICES.
@param This The pointer of PEI_USB_IO_PPI.
@param DeviceEndpoint Endpoint number and its direction in bit 7.
@param Data A pointer to the buffer of data to transmit
from or receive into.
@param DataLength The lenght of the data buffer.
@param Timeout Indicates the maximum time, in millisecond, which the
transfer is allowed to complete.
@retval EFI_SUCCESS The transfer was completed successfully.
@retval EFI_OUT_OF_RESOURCES The transfer failed due to lack of resource.
@retval EFI_INVALID_PARAMETER Parameters are invalid.
@retval EFI_TIMEOUT The transfer failed due to timeout.
@retval EFI_DEVICE_ERROR The transfer failed due to host controller error.
**/
)
{
EndpointIndex = 0;
while (EndpointIndex < MAX_ENDPOINT) {
return EFI_INVALID_PARAMETER;
}
break;
}
}
if (EndpointIndex == MAX_ENDPOINT) {
return EFI_INVALID_PARAMETER;
}
DataToggle = 1;
} else {
DataToggle = 0;
}
&(PeiUsbDev->Translator),
);
} else {
Data,
);
}
if (OldToggle != DataToggle) {
}
return Status;
}
/**
Get the usb interface descriptor.
@param PeiServices General-purpose services that are available to every PEIM.
@param This Indicates the PEI_USB_IO_PPI instance.
@param InterfaceDescriptor Request interface descriptor.
@retval EFI_SUCCESS Usb interface descriptor is obtained successfully.
**/
)
{
return EFI_SUCCESS;
}
/**
Get the usb endpoint descriptor.
@param PeiServices General-purpose services that are available to every PEIM.
@param This Indicates the PEI_USB_IO_PPI instance.
@param EndpointIndex The valid index of the specified endpoint.
@param EndpointDescriptor Request endpoint descriptor.
@retval EFI_SUCCESS Usb endpoint descriptor is obtained successfully.
@retval EFI_NOT_FOUND Usb endpoint descriptor is NOT found.
**/
)
{
//
// The valid range of EndpointIndex is 0..15
// If EndpointIndex is lesser than 15 but larger than the number of interfaces,
// a EFI_NOT_FOUND should be returned
//
return EFI_NOT_FOUND;
}
return EFI_SUCCESS;
}
/**
Reset the port and re-configure the usb device.
@param PeiServices General-purpose services that are available to every PEIM.
@param This Indicates the PEI_USB_IO_PPI instance.
@retval EFI_SUCCESS Usb device is reset and configured successfully.
@retval Others Other failure occurs.
**/
)
{
0
);
//
// Set address
//
PeiUsbDev->DeviceAddress = 0;
This,
);
return Status;
}
//
// Set default configuration
//
);
return Status;
}