131 lines
2.4 KiB
C
131 lines
2.4 KiB
C
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/*++
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Copyright (c) 1998 Intel Corporation
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Module Name:
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init.c
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Abstract:
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Shell Environment driver
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Revision History
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--*/
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#include "shelle.h"
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/*
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*
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*/
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EFI_STATUS
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InitializeShellEnvironment (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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);
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/*
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*
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*/
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EFI_DRIVER_ENTRY_POINT(InitializeShellEnvironment)
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EFI_STATUS
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InitializeShellEnvironment (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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/*++
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Routine Description:
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Arguments:
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ImageHandle - The handle for this driver
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SystemTable - The system table
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Returns:
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EFI file system driver is enabled
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--*/
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{
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EFI_HANDLE Handle;
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UINTN BufferSize;
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EFI_STATUS Status;
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/*
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* Initialize EFI library
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*/
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InitializeLib (ImageHandle, SystemTable);
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/*
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* If we are already installed, don't install again
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*/
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BufferSize = sizeof(Handle);
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Status = BS->LocateHandle(ByProtocol, &ShellEnvProtocol, NULL, &BufferSize, &Handle);
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if (!EFI_ERROR(Status)) {
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return EFI_LOAD_ERROR;
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}
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/*
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* Initialize globals
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*/
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InitializeLock (&SEnvLock, TPL_APPLICATION);
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InitializeLock (&SEnvGuidLock, TPL_NOTIFY);
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SEnvInitCommandTable();
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SEnvInitProtocolInfo();
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SEnvInitVariables();
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SEnvInitHandleGlobals();
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SEnvInitMap();
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SEnvLoadInternalProtInfo();
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SEnvConIoInitDosKey();
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SEnvInitBatch();
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/*
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* Install our handle (or override the existing one)
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*/
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BufferSize = sizeof(Handle);
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Handle = ImageHandle;
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BS->LocateHandle(ByProtocol, &ShellEnvProtocol, NULL, &BufferSize, &Handle);
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LibInstallProtocolInterfaces (&Handle, &ShellEnvProtocol, &SEnvInterface, NULL);
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return EFI_SUCCESS;
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}
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EFI_SHELL_INTERFACE *
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SEnvNewShell (
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IN EFI_HANDLE ImageHandle
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)
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{
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EFI_SHELL_INTERFACE *ShellInt;
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/* Allocate a new structure */
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ShellInt = AllocateZeroPool (sizeof(EFI_SHELL_INTERFACE));
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ASSERT (ShellInt);
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/* Fill in the SI pointer */
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BS->HandleProtocol (ImageHandle, &LoadedImageProtocol, (VOID*)&ShellInt->Info);
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/* Fill in the std file handles */
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ShellInt->ImageHandle = ImageHandle;
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ShellInt->StdIn = &SEnvIOFromCon;
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ShellInt->StdOut = &SEnvIOFromCon;
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ShellInt->StdErr = &SEnvErrIOFromCon;
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return ShellInt;
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}
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