Kaimakan71
2472e39635
Started BlpMmDestroy(), MmMdDestroy(), MmPaDestroy(), EfiSetWatchdogTimer(), EfiOpenProtocol(), EfiConInExSetState(), and BlDestroyLibrary(). Completed BlpFwInitialize(). Improved InitializeLibrary().
101 lines
2.3 KiB
C
101 lines
2.3 KiB
C
/*++
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Copyright (c) 2024, Quinn Stephens.
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Provided under the BSD 3-Clause license.
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Module Name:
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efifw.c
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Abstract:
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Provides EFI firmware utilities.
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--*/
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#include <ntrtl.h>
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#include "bootlib.h"
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#include "efi.h"
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#include "efilib.h"
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BOOT_FIRMWARE_DATA EfiFirmwareData;
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PBOOT_FIRMWARE_DATA EfiFirmwareParameters;
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EFI_HANDLE EfiImageHandle;
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EFI_SYSTEM_TABLE *EfiST;
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EFI_BOOT_SERVICES *EfiBS;
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EFI_RUNTIME_SERVICES *EfiRT;
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SIMPLE_TEXT_OUTPUT_INTERFACE *EfiConOut;
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SIMPLE_INPUT_INTERFACE *EfiConIn;
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EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *EfiConInEx;
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NTSTATUS
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BlpFwInitialize (
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IN ULONG Stage,
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IN PBOOT_FIRMWARE_DATA FirmwareData
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)
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/*++
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Routine Description:
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Internal routine to initialize the boot library.
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Arguments:
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Stage - Which stage of initialization to perform.
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Stage 0: Initialize global firmware-related data and pointers.
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Once this stage is complete, ConsolePrint() and ConsolePrintf() can be used.
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FirmwareData - Pointer to BOOT_FIRMWARE_DATA.
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Return Value:
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STATUS_SUCCESS if successful,
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STATUS_INVALID_PARAMETER if FirmwareData is invalid.
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--*/
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{
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NTSTATUS Status;
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EFI_KEY_TOGGLE_STATE KeyToggleState;
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if (FirmwareData == NULL || FirmwareData->Version == 0) {
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return STATUS_INVALID_PARAMETER;
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}
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if (Stage == 0) {
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RtlCopyMemory(&EfiFirmwareData, FirmwareData, sizeof(BOOT_FIRMWARE_DATA));
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EfiFirmwareParameters = &EfiFirmwareData;
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EfiImageHandle = FirmwareData->ImageHandle;
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EfiST = FirmwareData->SystemTable;
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EfiBS = EfiST->BootServices;
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EfiRT = EfiST->RuntimeServices;
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EfiConOut = EfiST->ConOut;
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EfiConIn = EfiST->ConIn;
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EfiConInEx = NULL;
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} else if (Stage == 1) {
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//
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// Open the extended console input protocol.
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// If successful, tell it to capture partial key events.
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//
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Status = EfiOpenProtocol(
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EfiST->ConsoleInHandle,
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&EfiSimpleTextInputExProtocol,
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(VOID**)&EfiConInEx
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);
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if (NT_SUCCESS(Status)) {
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KeyToggleState = EFI_KEY_STATE_EXPOSED | EFI_TOGGLE_STATE_VALID;
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EfiConInExSetState(EfiConInEx, &KeyToggleState);
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}
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//
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// Disable the watchdog timer.
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//
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EfiSetWatchdogTimer(0, 0, 0, NULL);
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}
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return STATUS_SUCCESS;
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}
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