HiiResourcesSample.c

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#include <Uefi.h>
#include <Guid/HiiResourceSampleHii.h>
#include <Protocol/HiiPackageList.h>
#include <Library/DevicePathLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiHiiServicesLib.h>
#include <Library/HiiLib.h>
 
#pragma pack(1)
typedef struct {
  VENDOR_DEVICE_PATH          VendorDevicePath;
  EFI_DEVICE_PATH_PROTOCOL    End;
} HII_VENDOR_DEVICE_PATH;
#pragma pack()
 
EFI_HII_HANDLE  mHiiHandle    = NULL;
EFI_HANDLE      mDriverHandle = NULL;
 
HII_VENDOR_DEVICE_PATH  mHiiVendorDevicePath = {
  {
    {
      HARDWARE_DEVICE_PATH,
      HW_VENDOR_DP,
      {
        (UINT8)(sizeof (VENDOR_DEVICE_PATH)),
        (UINT8)((sizeof (VENDOR_DEVICE_PATH)) >> 8)
      }
    },
    HII_RESOURCE_SAMPLE_FORM_SET_GUID
  },
  {
    END_DEVICE_PATH_TYPE,
    END_ENTIRE_DEVICE_PATH_SUBTYPE,
    {
      (UINT8)(END_DEVICE_PATH_LENGTH),
      (UINT8)((END_DEVICE_PATH_LENGTH) >> 8)
    }
  }
};
 
EFI_STATUS
EFIAPI
HiiResourcesSampleInit (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  EFI_STATUS                   Status;
  EFI_HII_PACKAGE_LIST_HEADER  *PackageList;
 
  //
  // Retrieve HII package list from ImageHandle
  //
  Status = gBS->OpenProtocol (
                  ImageHandle,
                  &gEfiHiiPackageListProtocolGuid,
                  (VOID **)&PackageList,
                  ImageHandle,
                  NULL,
                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
                  );
  if (EFI_ERROR (Status)) {
    return Status;
  }
 
  //
  // Publish sample Fromset
  //
  Status = gBS->InstallProtocolInterface (
                  &mDriverHandle,
                  &gEfiDevicePathProtocolGuid,
                  EFI_NATIVE_INTERFACE,
                  &mHiiVendorDevicePath
                  );
  if (EFI_ERROR (Status)) {
    return Status;
  }
 
  //
  // Publish HII package list to HII Database.
  //
  Status = gHiiDatabase->NewPackageList (
                           gHiiDatabase,
                           PackageList,
                           mDriverHandle,
                           &mHiiHandle
                           );
  if (EFI_ERROR (Status)) {
    return Status;
  }
 
  return EFI_SUCCESS;
}
 
EFI_STATUS
EFIAPI
HiiResourcesSampleUnload (
  IN EFI_HANDLE  ImageHandle
  )
{
  if (mDriverHandle != NULL) {
    gBS->UninstallProtocolInterface (
           mDriverHandle,
           &gEfiDevicePathProtocolGuid,
           &mHiiVendorDevicePath
           );
    mDriverHandle = NULL;
  }
 
  if (mHiiHandle != NULL) {
    HiiRemovePackages (mHiiHandle);
    mHiiHandle = NULL;
  }
 
  return EFI_SUCCESS;
}