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/** @file
Common Library for PEI USB
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved. <BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "UsbPeim.h"
#include "PeiUsbLib.h"
/**
Get a given usb descriptor.
@param PeiServices General-purpose services that are available to every PEIM.
@param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.
@param Value Request Value.
@param Index Request Index.
@param DescriptorLength Request descriptor Length.
@param Descriptor Request descriptor.
@retval EFI_SUCCESS Usb descriptor is obtained successfully.
@retval EFI_DEVICE_ERROR Cannot get the usb descriptor due to a hardware error.
@retval Others Other failure occurs.
**/
EFI_STATUS
PeiUsbGetDescriptor (
IN EFI_PEI_SERVICES **PeiServices,
IN PEI_USB_IO_PPI *UsbIoPpi,
IN UINT16 Value,
IN UINT16 Index,
IN UINT16 DescriptorLength,
OUT VOID *Descriptor
)
{
EFI_USB_DEVICE_REQUEST DevReq;
ASSERT (UsbIoPpi != NULL);
DevReq.RequestType = USB_DEV_GET_DESCRIPTOR_REQ_TYPE;
DevReq.Request = USB_DEV_GET_DESCRIPTOR;
DevReq.Value = Value;
DevReq.Index = Index;
DevReq.Length = DescriptorLength;
return UsbIoPpi->UsbControlTransfer (
PeiServices,
UsbIoPpi,
&DevReq,
EfiUsbDataIn,
PcdGet32 (PcdUsbTransferTimeoutValue),
Descriptor,
DescriptorLength
);
}
/**
Set a usb device with a specified address.
@param PeiServices General-purpose services that are available to every PEIM.
@param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.
@param AddressValue The address to assign.
@retval EFI_SUCCESS Usb device address is set successfully.
@retval EFI_DEVICE_ERROR Cannot set the usb address due to a hardware error.
@retval Others Other failure occurs.
**/
EFI_STATUS
PeiUsbSetDeviceAddress (
IN EFI_PEI_SERVICES **PeiServices,
IN PEI_USB_IO_PPI *UsbIoPpi,
IN UINT16 AddressValue
)
{
EFI_USB_DEVICE_REQUEST DevReq;
ASSERT (UsbIoPpi != NULL);
DevReq.RequestType = USB_DEV_SET_ADDRESS_REQ_TYPE;
DevReq.Request = USB_DEV_SET_ADDRESS;
DevReq.Value = AddressValue;
DevReq.Index = 0;
DevReq.Length = 0;
return UsbIoPpi->UsbControlTransfer (
PeiServices,
UsbIoPpi,
&DevReq,
EfiUsbNoData,
PcdGet32 (PcdUsbTransferTimeoutValue),
NULL,
0
);
}
/**
Configure a usb device to Configuration 1.
@param PeiServices General-purpose services that are available to every PEIM.
@param UsbIoPpi Indicates the PEI_USB_IO_PPI instance.
@retval EFI_SUCCESS Usb device is set to use Configuration 1 successfully.
@retval EFI_DEVICE_ERROR Cannot set the usb device due to a hardware error.
@retval Others Other failure occurs.
**/
EFI_STATUS
PeiUsbSetConfiguration (
IN EFI_PEI_SERVICES **PeiServices,
IN PEI_USB_IO_PPI *UsbIoPpi
)
{
EFI_USB_DEVICE_REQUEST DevReq;
ZeroMem (&DevReq, sizeof (EFI_USB_DEVICE_REQUEST));
DevReq.RequestType = USB_DEV_SET_CONFIGURATION_REQ_TYPE;
DevReq.Request = USB_DEV_SET_CONFIGURATION;
DevReq.Value = 1;
return UsbIoPpi->UsbControlTransfer (
PeiServices,
UsbIoPpi,
&DevReq,
EfiUsbNoData,
PcdGet32 (PcdUsbTransferTimeoutValue),
NULL,
0
);
}
/**
Judge if the port is connected with a usb device or not.
@param PortStatus The usb port status gotten.
@retval TRUE A usb device is connected with the port.
@retval FALSE No usb device is connected with the port.
**/
BOOLEAN
IsPortConnect (
IN UINT16 PortStatus
)
{
//
// return the bit 0 value of PortStatus
//
if ((PortStatus & USB_PORT_STAT_CONNECTION) != 0) {
return TRUE;
} else {
return FALSE;
}
}
/**
Get device speed according to port status.
@param PortStatus The usb port status gotten.
@return Device speed value.
**/
UINTN
PeiUsbGetDeviceSpeed (
IN UINT16 PortStatus
)
{
if ((PortStatus & USB_PORT_STAT_LOW_SPEED) != 0) {
return EFI_USB_SPEED_LOW;
} else if ((PortStatus & USB_PORT_STAT_HIGH_SPEED) != 0) {
return EFI_USB_SPEED_HIGH;
} else if ((PortStatus & USB_PORT_STAT_SUPER_SPEED) != 0) {
return EFI_USB_SPEED_SUPER;
} else {
return EFI_USB_SPEED_FULL;
}
}
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