PeiUsbLib.c

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#include "UsbPeim.h"
#include "PeiUsbLib.h"
 
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
                     );
}
 
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
                     );
}
 
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
                     );
}
 
BOOLEAN
IsPortConnect (
  IN UINT16  PortStatus
  )
{
  //
  // return the bit 0 value of PortStatus
  //
  if ((PortStatus & USB_PORT_STAT_CONNECTION) != 0) {
    return TRUE;
  } else {
    return FALSE;
  }
}
 
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;
  }
}