mirror of https://github.com/acidanthera/audk.git
886 lines
25 KiB
C
886 lines
25 KiB
C
/*++
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Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
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Portions copyright (c) 2010, Apple, Inc. All rights reserved.
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Portions copyright (c) 2010, Apple Inc. All rights reserved.
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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 "UnixGop.h"
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BOOLEAN
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GopPrivateIsKeyRegistered (
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IN EFI_KEY_DATA *RegsiteredData,
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IN EFI_KEY_DATA *InputData
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)
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/*++
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Routine Description:
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Arguments:
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RegsiteredData - A pointer to a buffer that is filled in with the keystroke
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state data for the key that was registered.
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InputData - A pointer to a buffer that is filled in with the keystroke
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state data for the key that was pressed.
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Returns:
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TRUE - Key be pressed matches a registered key.
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FLASE - Match failed.
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--*/
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{
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ASSERT (RegsiteredData != NULL && InputData != NULL);
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if ((RegsiteredData->Key.ScanCode != InputData->Key.ScanCode) ||
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(RegsiteredData->Key.UnicodeChar != InputData->Key.UnicodeChar)) {
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return FALSE;
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}
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//
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// Assume KeyShiftState/KeyToggleState = 0 in Registered key data means these state could be ignored.
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//
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if (RegsiteredData->KeyState.KeyShiftState != 0 &&
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RegsiteredData->KeyState.KeyShiftState != InputData->KeyState.KeyShiftState) {
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return FALSE;
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}
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if (RegsiteredData->KeyState.KeyToggleState != 0 &&
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RegsiteredData->KeyState.KeyToggleState != InputData->KeyState.KeyToggleState) {
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return FALSE;
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}
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return TRUE;
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}
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VOID
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EFIAPI
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GopPrivateInvokeRegisteredFunction (
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IN VOID *Context,
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IN EFI_KEY_DATA *KeyData
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)
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{
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LIST_ENTRY *Link;
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UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY *CurrentNotify;
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GOP_PRIVATE_DATA *Private = (GOP_PRIVATE_DATA *)Context;
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for (Link = Private->NotifyList.ForwardLink; Link != &Private->NotifyList; Link = Link->ForwardLink) {
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CurrentNotify = CR (
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Link,
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UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY,
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NotifyEntry,
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UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY_SIGNATURE
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);
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if (GopPrivateIsKeyRegistered (&CurrentNotify->KeyData, KeyData)) {
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// We could be called at a high TPL so signal an event to call the registered function
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// at a lower TPL.
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gBS->SignalEvent (CurrentNotify->Event);
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}
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}
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}
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//
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// Simple Text In implementation.
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//
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/**
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Reset the input device and optionally run diagnostics
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@param This Protocol instance pointer.
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@param ExtendedVerification Driver may perform diagnostics on reset.
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@retval EFI_SUCCESS The device was reset.
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@retval EFI_DEVICE_ERROR The device is not functioning properly and could not be reset.
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**/
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EFI_STATUS
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EFIAPI
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UnixGopSimpleTextInReset (
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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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GOP_PRIVATE_DATA *Private;
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EFI_KEY_DATA KeyData;
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EFI_TPL OldTpl;
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Private = GOP_PRIVATE_DATA_FROM_TEXT_IN_THIS (This);
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if (Private->UgaIo == NULL) {
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return EFI_SUCCESS;
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}
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//
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// Enter critical section
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//
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OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
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//
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// A reset is draining the Queue
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//
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while (Private->UgaIo->UgaGetKey (Private->UgaIo, &KeyData) == EFI_SUCCESS)
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;
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//
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// Leave critical section and return
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//
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gBS->RestoreTPL (OldTpl);
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return EFI_SUCCESS;
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}
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/**
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Reads the next keystroke from the input device. The WaitForKey Event can
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be used to test for existence of a keystroke via WaitForEvent () call.
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@param This Protocol instance pointer.
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@param Key A pointer to a buffer that is filled in with the keystroke
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information for the key that was pressed.
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@retval EFI_SUCCESS The keystroke information was returned.
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@retval EFI_NOT_READY There was no keystroke data available.
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@retval EFI_DEVICE_ERROR The keystroke information was not returned due to
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hardware errors.
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**/
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EFI_STATUS
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EFIAPI
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UnixGopSimpleTextInReadKeyStroke (
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IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
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OUT EFI_INPUT_KEY *Key
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)
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{
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GOP_PRIVATE_DATA *Private;
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EFI_STATUS Status;
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EFI_TPL OldTpl;
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EFI_KEY_DATA KeyData;
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Private = GOP_PRIVATE_DATA_FROM_TEXT_IN_THIS (This);
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if (Private->UgaIo == NULL) {
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return EFI_NOT_READY;
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}
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//
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// Enter critical section
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//
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OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
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Status = Private->UgaIo->UgaGetKey(Private->UgaIo, &KeyData);
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CopyMem (Key, &KeyData.Key, sizeof (EFI_INPUT_KEY));
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//
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// Leave critical section and return
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//
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gBS->RestoreTPL (OldTpl);
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return Status;
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}
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/**
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SimpleTextIn and SimpleTextInEx Notify Wait Event
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@param Event Event whose notification function is being invoked.
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@param Context Pointer to GOP_PRIVATE_DATA.
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**/
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VOID
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EFIAPI
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UnixGopSimpleTextInWaitForKey (
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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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GOP_PRIVATE_DATA *Private;
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EFI_STATUS Status;
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EFI_TPL OldTpl;
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Private = (GOP_PRIVATE_DATA *) Context;
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if (Private->UgaIo == NULL) {
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return;
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}
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//
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// Enter critical section
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//
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OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
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Status = Private->UgaIo->UgaCheckKey (Private->UgaIo);
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if (!EFI_ERROR (Status)) {
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//
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// If a there is a key in the queue signal our event.
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//
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gBS->SignalEvent (Event);
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}
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//
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// Leave critical section and return
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//
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gBS->RestoreTPL (OldTpl);
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}
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//
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// Simple Text Input Ex protocol functions
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//
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/**
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The Reset() function resets the input device hardware. As part
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of initialization process, the firmware/device will make a quick
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but reasonable attempt to verify that the device is functioning.
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If the ExtendedVerification flag is TRUE the firmware may take
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an extended amount of time to verify the device is operating on
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reset. Otherwise the reset operation is to occur as quickly as
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possible. The hardware verification process is not defined by
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this specification and is left up to the platform firmware or
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driver to implement.
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@param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.
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@param ExtendedVerification Indicates that the driver may
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perform a more exhaustive
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verification operation of the
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device during reset.
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@retval EFI_SUCCESS The device was reset.
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@retval EFI_DEVICE_ERROR The device is not functioning
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correctly and could not be reset.
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**/
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EFI_STATUS
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EFIAPI
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UnixGopSimpleTextInExResetEx (
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IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
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IN BOOLEAN ExtendedVerification
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)
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/*++
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Routine Description:
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Reset the input device and optionaly run diagnostics
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Arguments:
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This - Protocol instance pointer.
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ExtendedVerification - Driver may perform diagnostics on reset.
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Returns:
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EFI_SUCCESS - The device was reset.
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--*/
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{
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GOP_PRIVATE_DATA *Private;
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Private = GOP_PRIVATE_DATA_FROM_TEXT_IN_EX_THIS (This);
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return EFI_SUCCESS;
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}
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/**
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The function reads the next keystroke from the input device. If
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there is no pending keystroke the function returns
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EFI_NOT_READY. If there is a pending keystroke, then
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KeyData.Key.ScanCode is the EFI scan code defined in Error!
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Reference source not found. The KeyData.Key.UnicodeChar is the
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actual printable character or is zero if the key does not
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represent a printable character (control key, function key,
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etc.). The KeyData.KeyState is shift state for the character
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reflected in KeyData.Key.UnicodeChar or KeyData.Key.ScanCode .
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When interpreting the data from this function, it should be
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noted that if a class of printable characters that are
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normally adjusted by shift modifiers (e.g. Shift Key + "f"
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key) would be presented solely as a KeyData.Key.UnicodeChar
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without the associated shift state. So in the previous example
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of a Shift Key + "f" key being pressed, the only pertinent
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data returned would be KeyData.Key.UnicodeChar with the value
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of "F". This of course would not typically be the case for
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non-printable characters such as the pressing of the Right
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Shift Key + F10 key since the corresponding returned data
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would be reflected both in the KeyData.KeyState.KeyShiftState
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and KeyData.Key.ScanCode values. UEFI drivers which implement
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the EFI_SIMPLE_TEXT_INPUT_EX protocol are required to return
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KeyData.Key and KeyData.KeyState values. These drivers must
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always return the most current state of
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KeyData.KeyState.KeyShiftState and
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KeyData.KeyState.KeyToggleState. It should also be noted that
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certain input devices may not be able to produce shift or toggle
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state information, and in those cases the high order bit in the
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respective Toggle and Shift state fields should not be active.
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@param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.
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@param KeyData A pointer to a buffer that is filled in with
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the keystroke state data for the key that was
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pressed.
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@retval EFI_SUCCESS The keystroke information was
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returned.
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@retval EFI_NOT_READY There was no keystroke data available.
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EFI_DEVICE_ERROR The keystroke
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information was not returned due to
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hardware errors.
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**/
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EFI_STATUS
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EFIAPI
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UnixGopSimpleTextInExReadKeyStrokeEx (
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IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
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OUT EFI_KEY_DATA *KeyData
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)
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/*++
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Routine Description:
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Reads the next keystroke from the input device. The WaitForKey Event can
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be used to test for existance of a keystroke via WaitForEvent () call.
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Arguments:
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This - Protocol instance pointer.
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KeyData - A pointer to a buffer that is filled in with the keystroke
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state data for the key that was pressed.
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Returns:
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EFI_SUCCESS - The keystroke information was returned.
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EFI_NOT_READY - There was no keystroke data availiable.
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EFI_DEVICE_ERROR - The keystroke information was not returned due to
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hardware errors.
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EFI_INVALID_PARAMETER - KeyData is NULL.
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--*/
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{
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EFI_STATUS Status;
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GOP_PRIVATE_DATA *Private;
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EFI_TPL OldTpl;
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if (KeyData == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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Private = GOP_PRIVATE_DATA_FROM_TEXT_IN_THIS (This);
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if (Private->UgaIo == NULL) {
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return EFI_NOT_READY;
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}
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//
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// Enter critical section
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//
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OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
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Status = Private->UgaIo->UgaGetKey(Private->UgaIo, KeyData);
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//
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// Leave critical section and return
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//
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gBS->RestoreTPL (OldTpl);
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return Status;
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}
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/**
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The SetState() function allows the input device hardware to
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have state settings adjusted.
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@param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.
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@param KeyToggleState Pointer to the EFI_KEY_TOGGLE_STATE to
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set the state for the input device.
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@retval EFI_SUCCESS The device state was set appropriately.
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@retval EFI_DEVICE_ERROR The device is not functioning
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correctly and could not have the
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setting adjusted.
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@retval EFI_UNSUPPORTED The device does not support the
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ability to have its state set.
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**/
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EFI_STATUS
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EFIAPI
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UnixGopSimpleTextInExSetState (
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IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
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IN EFI_KEY_TOGGLE_STATE *KeyToggleState
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)
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{
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GOP_PRIVATE_DATA *Private;
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EFI_STATUS Status;
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EFI_TPL OldTpl;
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Private = GOP_PRIVATE_DATA_FROM_TEXT_IN_THIS (This);
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if (Private->UgaIo == NULL) {
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return EFI_NOT_READY;
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}
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//
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// Enter critical section
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//
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OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
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Status = Private->UgaIo->UgaKeySetState (Private->UgaIo, KeyToggleState);
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//
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// Leave critical section and return
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//
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gBS->RestoreTPL (OldTpl);
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return Status;
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}
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/**
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SimpleTextIn and SimpleTextInEx Notify Wait Event
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@param Event Event whose notification function is being invoked.
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@param Context Pointer to GOP_PRIVATE_DATA.
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**/
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VOID
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EFIAPI
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UnixGopRegisterKeyCallback (
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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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UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY *ExNotify = (UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY *)Context;
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ExNotify->KeyNotificationFn (&ExNotify->KeyData);
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}
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/**
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The RegisterKeystrokeNotify() function registers a function
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which will be called when a specified keystroke will occur.
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@param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.
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@param KeyData A pointer to a buffer that is filled in with
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the keystroke information for the key that was
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pressed.
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@param KeyNotificationFunction Points to the function to be
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called when the key sequence
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is typed specified by KeyData.
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@param NotifyHandle Points to the unique handle assigned to
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the registered notification.
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@retval EFI_SUCCESS The device state was set
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appropriately.
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@retval EFI_OUT_OF_RESOURCES Unable to allocate necessary
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data structures.
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**/
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EFI_STATUS
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EFIAPI
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UnixGopSimpleTextInExRegisterKeyNotify (
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IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
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IN EFI_KEY_DATA *KeyData,
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IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,
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OUT EFI_HANDLE *NotifyHandle
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)
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{
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EFI_STATUS Status;
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GOP_PRIVATE_DATA *Private;
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UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY *CurrentNotify;
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LIST_ENTRY *Link;
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UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY *NewNotify;
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if (KeyData == NULL || KeyNotificationFunction == NULL || NotifyHandle == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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Private = GOP_PRIVATE_DATA_FROM_TEXT_IN_EX_THIS (This);
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//
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// Return EFI_SUCCESS if the (KeyData, NotificationFunction) is already registered.
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//
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for (Link = Private->NotifyList.ForwardLink; Link != &Private->NotifyList; Link = Link->ForwardLink) {
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CurrentNotify = CR (
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Link,
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UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY,
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NotifyEntry,
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UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY_SIGNATURE
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);
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if (GopPrivateIsKeyRegistered (&CurrentNotify->KeyData, KeyData)) {
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if (CurrentNotify->KeyNotificationFn == KeyNotificationFunction) {
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*NotifyHandle = CurrentNotify->NotifyHandle;
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return EFI_SUCCESS;
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}
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}
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}
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//
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// Allocate resource to save the notification function
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//
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NewNotify = (UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY *) AllocateZeroPool (sizeof (UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY));
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if (NewNotify == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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NewNotify->Signature = UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY_SIGNATURE;
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NewNotify->KeyNotificationFn = KeyNotificationFunction;
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NewNotify->NotifyHandle = (EFI_HANDLE) NewNotify;
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CopyMem (&NewNotify->KeyData, KeyData, sizeof (KeyData));
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InsertTailList (&Private->NotifyList, &NewNotify->NotifyEntry);
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Status = gBS->CreateEvent (
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EVT_NOTIFY_SIGNAL,
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TPL_NOTIFY,
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UnixGopRegisterKeyCallback,
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NewNotify,
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NewNotify->Event
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);
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ASSERT_EFI_ERROR (Status);
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*NotifyHandle = NewNotify->NotifyHandle;
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return EFI_SUCCESS;
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}
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/**
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The UnregisterKeystrokeNotify() function removes the
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notification which was previously registered.
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@param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.
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|
|
@param NotificationHandle The handle of the notification
|
|
function being unregistered.
|
|
|
|
@retval EFI_SUCCESS The device state was set appropriately.
|
|
|
|
@retval EFI_INVALID_PARAMETER The NotificationHandle is
|
|
invalid.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
UnixGopSimpleTextInExUnregisterKeyNotify (
|
|
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
|
|
IN EFI_HANDLE NotificationHandle
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
Remove a registered notification function from a particular keystroke.
|
|
|
|
Arguments:
|
|
This - Protocol instance pointer.
|
|
NotificationHandle - The handle of the notification function being unregistered.
|
|
|
|
Returns:
|
|
EFI_SUCCESS - The notification function was unregistered successfully.
|
|
EFI_INVALID_PARAMETER - The NotificationHandle is invalid.
|
|
|
|
--*/
|
|
{
|
|
GOP_PRIVATE_DATA *Private;
|
|
LIST_ENTRY *Link;
|
|
UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY *CurrentNotify;
|
|
|
|
if (NotificationHandle == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
if (((UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY *) NotificationHandle)->Signature != UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY_SIGNATURE) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
Private = GOP_PRIVATE_DATA_FROM_TEXT_IN_EX_THIS (This);
|
|
|
|
for (Link = Private->NotifyList.ForwardLink; Link != &Private->NotifyList; Link = Link->ForwardLink) {
|
|
CurrentNotify = CR (
|
|
Link,
|
|
UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY,
|
|
NotifyEntry,
|
|
UNIX_GOP_SIMPLE_TEXTIN_EX_NOTIFY_SIGNATURE
|
|
);
|
|
if (CurrentNotify->NotifyHandle == NotificationHandle) {
|
|
//
|
|
// Remove the notification function from NotifyList and free resources
|
|
//
|
|
RemoveEntryList (&CurrentNotify->NotifyEntry);
|
|
|
|
gBS->CloseEvent (CurrentNotify->Event);
|
|
|
|
gBS->FreePool (CurrentNotify);
|
|
return EFI_SUCCESS;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Can not find the specified Notification Handle
|
|
//
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
Initialize SimplelTextIn and SimpleTextInEx protocols in the Private
|
|
context structure.
|
|
|
|
@param Private Context structure to fill in.
|
|
|
|
@return EFI_SUCCESS Initialization was a success
|
|
|
|
**/
|
|
EFI_STATUS
|
|
UnixGopInitializeSimpleTextInForWindow (
|
|
IN GOP_PRIVATE_DATA *Private
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
//
|
|
// Initialize Simple Text In protoocol
|
|
//
|
|
Private->SimpleTextIn.Reset = UnixGopSimpleTextInReset;
|
|
Private->SimpleTextIn.ReadKeyStroke = UnixGopSimpleTextInReadKeyStroke;
|
|
|
|
Status = gBS->CreateEvent (
|
|
EVT_NOTIFY_WAIT,
|
|
TPL_NOTIFY,
|
|
UnixGopSimpleTextInWaitForKey,
|
|
Private,
|
|
&Private->SimpleTextIn.WaitForKey
|
|
);
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
|
|
//
|
|
// Initialize Simple Text In Ex
|
|
//
|
|
|
|
Private->SimpleTextInEx.Reset = UnixGopSimpleTextInExResetEx;
|
|
Private->SimpleTextInEx.ReadKeyStrokeEx = UnixGopSimpleTextInExReadKeyStrokeEx;
|
|
Private->SimpleTextInEx.SetState = UnixGopSimpleTextInExSetState;
|
|
Private->SimpleTextInEx.RegisterKeyNotify = UnixGopSimpleTextInExRegisterKeyNotify;
|
|
Private->SimpleTextInEx.UnregisterKeyNotify = UnixGopSimpleTextInExUnregisterKeyNotify;
|
|
|
|
Private->SimpleTextInEx.Reset (&Private->SimpleTextInEx, FALSE);
|
|
|
|
InitializeListHead (&Private->NotifyList);
|
|
|
|
Status = gBS->CreateEvent (
|
|
EVT_NOTIFY_WAIT,
|
|
TPL_NOTIFY,
|
|
UnixGopSimpleTextInWaitForKey,
|
|
Private,
|
|
&Private->SimpleTextInEx.WaitForKeyEx
|
|
);
|
|
ASSERT_EFI_ERROR (Status);
|
|
|
|
|
|
return Status;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
// Simple Pointer implementation.
|
|
//
|
|
|
|
|
|
/**
|
|
Resets the pointer device hardware.
|
|
|
|
@param This A pointer to the EFI_SIMPLE_POINTER_PROTOCOL
|
|
instance.
|
|
@param ExtendedVerification Indicates that the driver may perform a more exhaustive
|
|
verification operation of the device during reset.
|
|
|
|
@retval EFI_SUCCESS The device was reset.
|
|
@retval EFI_DEVICE_ERROR The device is not functioning correctly and could not be reset.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
UnixGopSimplePointerReset (
|
|
IN EFI_SIMPLE_POINTER_PROTOCOL *This,
|
|
IN BOOLEAN ExtendedVerification
|
|
)
|
|
{
|
|
GOP_PRIVATE_DATA *Private;
|
|
EFI_SIMPLE_POINTER_STATE State;
|
|
EFI_TPL OldTpl;
|
|
|
|
Private = GOP_PRIVATE_DATA_FROM_POINTER_MODE_THIS (This);
|
|
if (Private->UgaIo == NULL) {
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
//
|
|
// Enter critical section
|
|
//
|
|
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
|
|
|
|
//
|
|
// A reset is draining the Queue
|
|
//
|
|
while (Private->UgaIo->UgaGetPointerState (Private->UgaIo, &State) == EFI_SUCCESS)
|
|
;
|
|
|
|
//
|
|
// Leave critical section and return
|
|
//
|
|
gBS->RestoreTPL (OldTpl);
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
Retrieves the current state of a pointer device.
|
|
|
|
@param This A pointer to the EFI_SIMPLE_POINTER_PROTOCOL
|
|
instance.
|
|
@param State A pointer to the state information on the pointer device.
|
|
|
|
@retval EFI_SUCCESS The state of the pointer device was returned in State.
|
|
@retval EFI_NOT_READY The state of the pointer device has not changed since the last call to
|
|
GetState().
|
|
@retval EFI_DEVICE_ERROR A device error occurred while attempting to retrieve the pointer device's
|
|
current state.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
UnixGopSimplePointerGetState (
|
|
IN EFI_SIMPLE_POINTER_PROTOCOL *This,
|
|
IN OUT EFI_SIMPLE_POINTER_STATE *State
|
|
)
|
|
{
|
|
GOP_PRIVATE_DATA *Private;
|
|
EFI_STATUS Status;
|
|
EFI_TPL OldTpl;
|
|
|
|
Private = GOP_PRIVATE_DATA_FROM_POINTER_MODE_THIS (This);
|
|
if (Private->UgaIo == NULL) {
|
|
return EFI_NOT_READY;
|
|
}
|
|
|
|
//
|
|
// Enter critical section
|
|
//
|
|
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
|
|
|
|
Status = Private->UgaIo->UgaGetPointerState (Private->UgaIo, State);
|
|
//
|
|
// Leave critical section and return
|
|
//
|
|
gBS->RestoreTPL (OldTpl);
|
|
|
|
return Status;
|
|
}
|
|
|
|
|
|
/**
|
|
SimplePointer Notify Wait Event
|
|
|
|
@param Event Event whose notification function is being invoked.
|
|
@param Context Pointer to GOP_PRIVATE_DATA.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
UnixGopSimplePointerWaitForInput (
|
|
IN EFI_EVENT Event,
|
|
IN VOID *Context
|
|
)
|
|
{
|
|
GOP_PRIVATE_DATA *Private;
|
|
EFI_STATUS Status;
|
|
EFI_TPL OldTpl;
|
|
|
|
Private = (GOP_PRIVATE_DATA *) Context;
|
|
if (Private->UgaIo == NULL) {
|
|
return;
|
|
}
|
|
|
|
//
|
|
// Enter critical section
|
|
//
|
|
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
|
|
|
|
Status = Private->UgaIo->UgaCheckPointer (Private->UgaIo);
|
|
if (!EFI_ERROR (Status)) {
|
|
//
|
|
// If the pointer state has changed, signal our event.
|
|
//
|
|
gBS->SignalEvent (Event);
|
|
}
|
|
//
|
|
// Leave critical section and return
|
|
//
|
|
gBS->RestoreTPL (OldTpl);
|
|
}
|
|
|
|
|
|
/**
|
|
SimplePointer constructor
|
|
|
|
@param Private Context structure to fill in.
|
|
|
|
@retval EFI_SUCCESS Constructor had success
|
|
|
|
**/
|
|
EFI_STATUS
|
|
UnixGopInitializeSimplePointerForWindow (
|
|
IN GOP_PRIVATE_DATA *Private
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
//
|
|
// Initialize Simple Pointer protoocol
|
|
//
|
|
Private->PointerMode.ResolutionX = 1;
|
|
Private->PointerMode.ResolutionY = 1;
|
|
Private->PointerMode.ResolutionZ = 1;
|
|
Private->PointerMode.LeftButton = TRUE;
|
|
Private->PointerMode.RightButton = TRUE;
|
|
|
|
Private->SimplePointer.Reset = UnixGopSimplePointerReset;
|
|
Private->SimplePointer.GetState = UnixGopSimplePointerGetState;
|
|
Private->SimplePointer.Mode = &Private->PointerMode;
|
|
|
|
Status = gBS->CreateEvent (
|
|
EVT_NOTIFY_WAIT,
|
|
TPL_NOTIFY,
|
|
UnixGopSimplePointerWaitForInput,
|
|
Private,
|
|
&Private->SimplePointer.WaitForInput
|
|
);
|
|
|
|
return Status;
|
|
}
|