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515 lines
16 KiB
515 lines
16 KiB
/** @file
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Function definitions for shell simple text in and out on top of file handles.
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(C) Copyright 2013 Hewlett-Packard Development Company, L.P.<BR>
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Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "Shell.h"
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extern BOOLEAN AsciiRedirection;
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typedef struct {
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EFI_SIMPLE_TEXT_INPUT_PROTOCOL SimpleTextIn;
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SHELL_FILE_HANDLE FileHandle;
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EFI_HANDLE TheHandle;
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UINT64 RemainingBytesOfInputFile;
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} SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL;
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typedef struct {
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EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL SimpleTextOut;
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SHELL_FILE_HANDLE FileHandle;
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EFI_HANDLE TheHandle;
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EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *OriginalSimpleTextOut;
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} SHELL_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL;
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/**
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Event notification function for EFI_SIMPLE_TEXT_INPUT_PROTOCOL.WaitForKey event
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Signal the event if there is key available
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@param Event Indicates the event that invoke this function.
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@param Context Indicates the calling context.
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**/
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VOID
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EFIAPI
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ConInWaitForKey (
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IN EFI_EVENT Event,
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IN VOID *Context
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)
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{
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gBS->SignalEvent (Event);
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}
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/**
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Reset function for the fake simple text input.
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@param[in] This A pointer to the SimpleTextIn structure.
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@param[in] ExtendedVerification TRUE for extra validation, FALSE otherwise.
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@retval EFI_SUCCESS The reset was successful.
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**/
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EFI_STATUS
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EFIAPI
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FileBasedSimpleTextInReset(
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IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
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IN BOOLEAN ExtendedVerification
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)
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{
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return (EFI_SUCCESS);
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}
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/**
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ReadKeyStroke function for the fake simple text input.
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@param[in] This A pointer to the SimpleTextIn structure.
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@param[in, out] Key A pointer to the Key structure to fill.
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@retval EFI_SUCCESS The read was successful.
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**/
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EFI_STATUS
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EFIAPI
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FileBasedSimpleTextInReadKeyStroke(
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IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
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IN OUT EFI_INPUT_KEY *Key
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)
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{
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UINTN Size;
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UINTN CharSize;
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//
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// Verify the parameters
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//
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if (Key == NULL || This == NULL) {
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return (EFI_INVALID_PARAMETER);
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}
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//
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// Check if we have any characters left in the stream.
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//
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if (((SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL *)This)->RemainingBytesOfInputFile == 0) {
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return (EFI_NOT_READY);
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}
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Size = sizeof(CHAR16);
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if(!AsciiRedirection) {
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CharSize = sizeof(CHAR16);
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} else {
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CharSize = sizeof(CHAR8);
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}
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//
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// Decrement the amount of free space by Size or set to zero (for odd length files)
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//
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if (((SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL *)This)->RemainingBytesOfInputFile > CharSize) {
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((SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL *)This)->RemainingBytesOfInputFile -= CharSize;
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} else {
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((SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL *)This)->RemainingBytesOfInputFile = 0;
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}
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Key->ScanCode = 0;
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return (ShellInfoObject.NewEfiShellProtocol->ReadFile(
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((SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL *)This)->FileHandle,
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&Size,
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&Key->UnicodeChar));
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}
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/**
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Function to create a EFI_SIMPLE_TEXT_INPUT_PROTOCOL on top of a
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SHELL_FILE_HANDLE to support redirecting input from a file.
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@param[in] FileHandleToUse The pointer to the SHELL_FILE_HANDLE to use.
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@param[in] HandleLocation The pointer of a location to copy handle with protocol to.
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@retval NULL There was insufficient memory available.
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@return A pointer to the allocated protocol structure;
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**/
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EFI_SIMPLE_TEXT_INPUT_PROTOCOL*
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CreateSimpleTextInOnFile(
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IN SHELL_FILE_HANDLE FileHandleToUse,
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IN EFI_HANDLE *HandleLocation
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)
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{
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SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL *ProtocolToReturn;
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EFI_STATUS Status;
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UINT64 CurrentPosition;
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UINT64 FileSize;
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if (HandleLocation == NULL || FileHandleToUse == NULL) {
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return (NULL);
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}
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ProtocolToReturn = AllocateZeroPool(sizeof(SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL));
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if (ProtocolToReturn == NULL) {
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return (NULL);
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}
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ShellGetFileSize (FileHandleToUse, &FileSize);
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ShellGetFilePosition(FileHandleToUse, &CurrentPosition);
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//
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// Initialize the protocol members
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//
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ProtocolToReturn->RemainingBytesOfInputFile = FileSize - CurrentPosition;
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ProtocolToReturn->FileHandle = FileHandleToUse;
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ProtocolToReturn->SimpleTextIn.Reset = FileBasedSimpleTextInReset;
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ProtocolToReturn->SimpleTextIn.ReadKeyStroke = FileBasedSimpleTextInReadKeyStroke;
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Status = gBS->CreateEvent (
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EVT_NOTIFY_WAIT,
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TPL_NOTIFY,
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ConInWaitForKey,
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&ProtocolToReturn->SimpleTextIn,
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&ProtocolToReturn->SimpleTextIn.WaitForKey
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);
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if (EFI_ERROR(Status)) {
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FreePool(ProtocolToReturn);
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return (NULL);
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}
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///@todo possibly also install SimpleTextInputEx on the handle at this point.
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Status = gBS->InstallProtocolInterface(
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&(ProtocolToReturn->TheHandle),
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&gEfiSimpleTextInProtocolGuid,
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EFI_NATIVE_INTERFACE,
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&(ProtocolToReturn->SimpleTextIn));
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if (!EFI_ERROR(Status)) {
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*HandleLocation = ProtocolToReturn->TheHandle;
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return ((EFI_SIMPLE_TEXT_INPUT_PROTOCOL*)ProtocolToReturn);
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} else {
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FreePool(ProtocolToReturn);
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return (NULL);
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}
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}
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/**
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Function to close a EFI_SIMPLE_TEXT_INPUT_PROTOCOL on top of a
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SHELL_FILE_HANDLE to support redirecting input from a file.
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@param[in] SimpleTextIn The pointer to the SimpleTextIn to close.
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@retval EFI_SUCCESS The object was closed.
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**/
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EFI_STATUS
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CloseSimpleTextInOnFile(
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IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *SimpleTextIn
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)
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{
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EFI_STATUS Status;
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EFI_STATUS Status1;
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if (SimpleTextIn == NULL) {
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return (EFI_INVALID_PARAMETER);
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}
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Status = gBS->CloseEvent(((SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL *)SimpleTextIn)->SimpleTextIn.WaitForKey);
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Status1 = gBS->UninstallProtocolInterface(
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((SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL*)SimpleTextIn)->TheHandle,
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&gEfiSimpleTextInProtocolGuid,
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&(((SHELL_EFI_SIMPLE_TEXT_INPUT_PROTOCOL*)SimpleTextIn)->SimpleTextIn));
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FreePool(SimpleTextIn);
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if (!EFI_ERROR(Status)) {
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return (Status1);
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} else {
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return (Status);
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}
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}
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/**
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Reset the text output device hardware and optionaly run diagnostics.
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@param This pointer to EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL
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@param ExtendedVerification Indicates that a more extensive test may be performed
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@retval EFI_SUCCESS The text output device was reset.
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**/
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EFI_STATUS
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EFIAPI
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FileBasedSimpleTextOutReset (
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
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IN BOOLEAN ExtendedVerification
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)
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{
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return (EFI_SUCCESS);
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}
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/**
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Verifies that all characters in a Unicode string can be output to the
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target device.
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@param[in] This Protocol instance pointer.
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@param[in] WString The NULL-terminated Unicode string to be examined.
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@retval EFI_SUCCESS The device(s) are capable of rendering the output string.
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**/
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EFI_STATUS
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EFIAPI
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FileBasedSimpleTextOutTestString (
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
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IN CHAR16 *WString
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)
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{
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return (EFI_SUCCESS);
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}
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/**
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Returns information for an available text mode that the output device(s)
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supports.
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@param[in] This Protocol instance pointer.
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@param[in] ModeNumber The mode number to return information on.
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@param[out] Columns Upon return, the number of columns in the selected geometry
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@param[out] Rows Upon return, the number of rows in the selected geometry
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@retval EFI_UNSUPPORTED The mode number was not valid.
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**/
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EFI_STATUS
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EFIAPI
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FileBasedSimpleTextOutQueryMode (
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
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IN UINTN ModeNumber,
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OUT UINTN *Columns,
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OUT UINTN *Rows
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)
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{
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EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *PassThruProtocol;
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PassThruProtocol = ((SHELL_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *)This)->OriginalSimpleTextOut;
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// Pass the QueryMode call thru to the original SimpleTextOutProtocol
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return (PassThruProtocol->QueryMode(
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PassThruProtocol,
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ModeNumber,
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Columns,
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Rows));
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}
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/**
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Sets the output device(s) to a specified mode.
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@param[in] This Protocol instance pointer.
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@param[in] ModeNumber The mode number to set.
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@retval EFI_UNSUPPORTED The mode number was not valid.
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**/
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EFI_STATUS
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EFIAPI
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FileBasedSimpleTextOutSetMode (
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
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IN UINTN ModeNumber
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)
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{
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return (EFI_UNSUPPORTED);
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}
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/**
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Sets the background and foreground colors for the OutputString () and
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ClearScreen () functions.
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@param[in] This Protocol instance pointer.
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@param[in] Attribute The attribute to set. Bits 0..3 are the foreground color, and
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bits 4..6 are the background color. All other bits are undefined
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and must be zero. The valid Attributes are defined in this file.
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@retval EFI_SUCCESS The attribute was set.
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**/
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EFI_STATUS
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EFIAPI
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FileBasedSimpleTextOutSetAttribute (
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
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IN UINTN Attribute
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)
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{
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return (EFI_SUCCESS);
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}
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/**
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Clears the output device(s) display to the currently selected background
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color.
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@param[in] This Protocol instance pointer.
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@retval EFI_UNSUPPORTED The output device is not in a valid text mode.
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**/
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EFI_STATUS
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EFIAPI
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FileBasedSimpleTextOutClearScreen (
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This
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)
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{
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return (EFI_SUCCESS);
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}
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/**
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Sets the current coordinates of the cursor position
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@param[in] This Protocol instance pointer.
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@param[in] Column Column to put the cursor in. Must be between zero and Column returned from QueryMode
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@param[in] Row Row to put the cursor in. Must be between zero and Row returned from QueryMode
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@retval EFI_SUCCESS The operation completed successfully.
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**/
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EFI_STATUS
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EFIAPI
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FileBasedSimpleTextOutSetCursorPosition (
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
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IN UINTN Column,
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IN UINTN Row
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)
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{
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return (EFI_SUCCESS);
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}
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/**
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Makes the cursor visible or invisible
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@param[in] This Protocol instance pointer.
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@param[in] Visible If TRUE, the cursor is set to be visible. If FALSE, the cursor is
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set to be invisible.
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@retval EFI_SUCCESS The operation completed successfully.
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**/
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EFI_STATUS
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EFIAPI
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FileBasedSimpleTextOutEnableCursor (
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
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IN BOOLEAN Visible
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)
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{
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return (EFI_SUCCESS);
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}
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/**
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Write a Unicode string to the output device.
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@param[in] This Protocol instance pointer.
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@param[in] WString The NULL-terminated Unicode string to be displayed on the output
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device(s). All output devices must also support the Unicode
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drawing defined in this file.
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@retval EFI_SUCCESS The string was output to the device.
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@retval EFI_DEVICE_ERROR The device reported an error while attempting to output
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the text.
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@retval EFI_UNSUPPORTED The output device's mode is not currently in a
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defined text mode.
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@retval EFI_WARN_UNKNOWN_GLYPH This warning code indicates that some of the
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characters in the Unicode string could not be
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rendered and were skipped.
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**/
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EFI_STATUS
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EFIAPI
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FileBasedSimpleTextOutOutputString (
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *This,
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IN CHAR16 *WString
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)
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{
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UINTN Size;
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Size = StrLen(WString) * sizeof(CHAR16);
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return (ShellInfoObject.NewEfiShellProtocol->WriteFile(
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((SHELL_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *)This)->FileHandle,
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&Size,
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WString));
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}
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/**
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Function to create a EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on top of a
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SHELL_FILE_HANDLE to support redirecting output from a file.
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@param[in] FileHandleToUse The pointer to the SHELL_FILE_HANDLE to use.
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@param[in] HandleLocation The pointer of a location to copy handle with protocol to.
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@param[in] OriginalProtocol The pointer to the original output protocol for pass thru of functions.
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@retval NULL There was insufficient memory available.
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@return A pointer to the allocated protocol structure;
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**/
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EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL*
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CreateSimpleTextOutOnFile(
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IN SHELL_FILE_HANDLE FileHandleToUse,
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IN EFI_HANDLE *HandleLocation,
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *OriginalProtocol
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)
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{
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SHELL_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *ProtocolToReturn;
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EFI_STATUS Status;
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if (HandleLocation == NULL || FileHandleToUse == NULL) {
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return (NULL);
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}
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ProtocolToReturn = AllocateZeroPool(sizeof(SHELL_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL));
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if (ProtocolToReturn == NULL) {
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return (NULL);
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}
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ProtocolToReturn->FileHandle = FileHandleToUse;
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ProtocolToReturn->OriginalSimpleTextOut = OriginalProtocol;
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ProtocolToReturn->SimpleTextOut.Reset = FileBasedSimpleTextOutReset;
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ProtocolToReturn->SimpleTextOut.TestString = FileBasedSimpleTextOutTestString;
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ProtocolToReturn->SimpleTextOut.QueryMode = FileBasedSimpleTextOutQueryMode;
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ProtocolToReturn->SimpleTextOut.SetMode = FileBasedSimpleTextOutSetMode;
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ProtocolToReturn->SimpleTextOut.SetAttribute = FileBasedSimpleTextOutSetAttribute;
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ProtocolToReturn->SimpleTextOut.ClearScreen = FileBasedSimpleTextOutClearScreen;
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ProtocolToReturn->SimpleTextOut.SetCursorPosition = FileBasedSimpleTextOutSetCursorPosition;
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ProtocolToReturn->SimpleTextOut.EnableCursor = FileBasedSimpleTextOutEnableCursor;
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ProtocolToReturn->SimpleTextOut.OutputString = FileBasedSimpleTextOutOutputString;
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ProtocolToReturn->SimpleTextOut.Mode = AllocateZeroPool(sizeof(EFI_SIMPLE_TEXT_OUTPUT_MODE));
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if (ProtocolToReturn->SimpleTextOut.Mode == NULL) {
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FreePool(ProtocolToReturn);
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return (NULL);
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}
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ProtocolToReturn->SimpleTextOut.Mode->MaxMode = OriginalProtocol->Mode->MaxMode;
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ProtocolToReturn->SimpleTextOut.Mode->Mode = OriginalProtocol->Mode->Mode;
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ProtocolToReturn->SimpleTextOut.Mode->Attribute = OriginalProtocol->Mode->Attribute;
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ProtocolToReturn->SimpleTextOut.Mode->CursorColumn = OriginalProtocol->Mode->CursorColumn;
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ProtocolToReturn->SimpleTextOut.Mode->CursorRow = OriginalProtocol->Mode->CursorRow;
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ProtocolToReturn->SimpleTextOut.Mode->CursorVisible = OriginalProtocol->Mode->CursorVisible;
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Status = gBS->InstallProtocolInterface(
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&(ProtocolToReturn->TheHandle),
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&gEfiSimpleTextOutProtocolGuid,
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EFI_NATIVE_INTERFACE,
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&(ProtocolToReturn->SimpleTextOut));
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if (!EFI_ERROR(Status)) {
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*HandleLocation = ProtocolToReturn->TheHandle;
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return ((EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL*)ProtocolToReturn);
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} else {
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SHELL_FREE_NON_NULL(ProtocolToReturn->SimpleTextOut.Mode);
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SHELL_FREE_NON_NULL(ProtocolToReturn);
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return (NULL);
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}
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}
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/**
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Function to close a EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on top of a
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SHELL_FILE_HANDLE to support redirecting output from a file.
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@param[in] SimpleTextOut The pointer to the SimpleTextOUT to close.
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@retval EFI_SUCCESS The object was closed.
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**/
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EFI_STATUS
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CloseSimpleTextOutOnFile(
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IN EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *SimpleTextOut
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)
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{
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EFI_STATUS Status;
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if (SimpleTextOut == NULL) {
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return (EFI_INVALID_PARAMETER);
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}
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Status = gBS->UninstallProtocolInterface(
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((SHELL_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL*)SimpleTextOut)->TheHandle,
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&gEfiSimpleTextOutProtocolGuid,
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&(((SHELL_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL*)SimpleTextOut)->SimpleTextOut));
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FreePool(SimpleTextOut->Mode);
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FreePool(SimpleTextOut);
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return (Status);
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}
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