reactos/boot/environ/app/bootmgr/efiemu.c

   1 /*
   2  * COPYRIGHT:       See COPYING.ARM in the top level directory
   3  * PROJECT:         ReactOS UEFI Boot Manager
   4  * FILE:            boot/environ/app/efiemu.c
   5  * PURPOSE:         UEFI Entrypoint for Boot Manager
   6  * PROGRAMMER:      Alex Ionescu (alex.ionescu@reactos.org)
   7  */
   8
   9 /* INCLUDES ******************************************************************/
  10
  11 #include "bootmgr.h"
  12
  13 /* FUNCTIONS *****************************************************************/
  14
  15 /*++
  16  * @name EfiInitCreateInputParametersEx
  17  *
  18  *     The EfiInitCreateInputParametersEx routine converts UEFI entrypoint
  19  *     parameters to the ones expected by Windows Boot Applications
  20  *
  21  * @param  ImageHandle
  22  *         UEFI Image Handle for the current loaded application.
  23  *
  24  * @param  SystemTable
  25  *         Pointer to the UEFI System Table.
  26  *
  27  * @return A PBOOT_APPLICATION_PARAMETER_BLOCK structure containing the data
  28  *         from UEFI, translated to the Boot Library-compatible format.
  29  *
  30  *--*/
  31 PBOOT_APPLICATION_PARAMETER_BLOCK
  32 EfiInitCreateInputParametersEx (
  33     _In_ EFI_HANDLE ImageHandle,
  34     _In_ EFI_SYSTEM_TABLE *SystemTable
  35     )
  36 {
  37     DBG_UNREFERENCED_PARAMETER(ImageHandle);
  38     DBG_UNREFERENCED_PARAMETER(SystemTable);
  39
  40     /* Not yet implemented */
  41     return NULL;
  42 }
  43
  44 /*++
  45  * @name EfiEntry
  46  *
  47  *     The EfiEntry routine implements the UEFI entrypoint for the application.
  48  *
  49  * @param  ImageHandle
  50  *         UEFI Image Handle for the current loaded application.
  51  *
  52  * @param  SystemTable
  53  *         Pointer to the UEFI System Table.
  54  *
  55  * @return EFI_SUCCESS if the image was loaded correctly, relevant error code
  56  *         otherwise.
  57  *
  58  *--*/
  59 EFI_STATUS
  60 EfiEntry (
  61     _In_ EFI_HANDLE ImageHandle,
  62     _In_ EFI_SYSTEM_TABLE *SystemTable
  63     )
  64 {
  65     NTSTATUS Status;
  66     PBOOT_APPLICATION_PARAMETER_BLOCK BootParameters;
  67
  68     /* Temporary debugging string */
  69     SystemTable->ConOut->OutputString(SystemTable->ConsoleOutHandle, L"Hello from EFI\n");
  70
  71     /* Convert EFI parameters to Windows Boot Application parameters */
  72     BootParameters = EfiInitCreateInputParametersEx(ImageHandle, SystemTable);
  73     if (BootParameters != NULL)
  74     {
  75         /* Conversion was good -- call the Boot Manager Entrypoint */
  76         SystemTable->ConOut->OutputString(SystemTable->ConsoleOutHandle, L"EFI input OK!\n");
  77         Status = BmMain(BootParameters);
  78     }
  79     else
  80     {
  81         /* Conversion failed, bail out */
  82         SystemTable->ConOut->OutputString(SystemTable->ConsoleOutHandle, L"EFI input failed\n");
  83         Status = STATUS_INVALID_PARAMETER;
  84     }
  85
  86     /* Convert the NT status code to an EFI code */
  87     return EfiGetEfiStatusCode(Status);
  88 }
  89