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audk/EmulatorPkg/EmuGopDxe/GopInput.c

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/*++ @file
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
Portions copyright (c) 2010 0 2011,Apple Inc. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "Gop.h"
BOOLEAN
GopPrivateIsKeyRegistered (
IN EFI_KEY_DATA *RegsiteredData,
IN EFI_KEY_DATA *InputData
)
/*++
Routine Description:
Arguments:
RegsiteredData - A pointer to a buffer that is filled in with the keystroke
state data for the key that was registered.
InputData - A pointer to a buffer that is filled in with the keystroke
state data for the key that was pressed.
Returns:
TRUE - Key be pressed matches a registered key.
FLASE - Match failed.
**/
{
ASSERT (RegsiteredData != NULL && InputData != NULL);
if ((RegsiteredData->Key.ScanCode != InputData->Key.ScanCode) ||
(RegsiteredData->Key.UnicodeChar != InputData->Key.UnicodeChar))
{
return FALSE;
}
//
// Assume KeyShiftState/KeyToggleState = 0 in Registered key data means these state could be ignored.
//
if ((RegsiteredData->KeyState.KeyShiftState != 0) &&
(RegsiteredData->KeyState.KeyShiftState != InputData->KeyState.KeyShiftState))
{
return FALSE;
}
if ((RegsiteredData->KeyState.KeyToggleState != 0) &&
(RegsiteredData->KeyState.KeyToggleState != InputData->KeyState.KeyToggleState))
{
return FALSE;
}
return TRUE;
}
VOID
EFIAPI
GopPrivateMakeCallbackFunction (
IN VOID *Context,
IN EFI_KEY_DATA *KeyData
)
{
LIST_ENTRY *Link;
EMU_GOP_SIMPLE_TEXTIN_EX_NOTIFY *CurrentNotify;
GOP_PRIVATE_DATA *Private = (GOP_PRIVATE_DATA *)Context;
KeyMapMake (KeyData);
for (Link = Private->NotifyList.ForwardLink; Link != &Private->NotifyList; Link = Link->ForwardLink) {
CurrentNotify = CR (
Link,
EMU_GOP_SIMPLE_TEXTIN_EX_NOTIFY,
NotifyEntry,
EMU_GOP_SIMPLE_TEXTIN_EX_NOTIFY_SIGNATURE
);
if (GopPrivateIsKeyRegistered (&CurrentNotify->KeyData, KeyData)) {
// We could be called at a high TPL so signal an event to call the registered function
// at a lower TPL.
gBS->SignalEvent (CurrentNotify->Event);
}
}
}
VOID
EFIAPI
GopPrivateBreakCallbackFunction (
IN VOID *Context,
IN EFI_KEY_DATA *KeyData
)
{
KeyMapBreak (KeyData);
}
//
// Simple Text In implementation.
//
/**
Reset the input device and optionally run diagnostics
@param This Protocol instance pointer.
@param ExtendedVerification Driver may perform diagnostics on reset.
@retval EFI_SUCCESS The device was reset.
@retval EFI_DEVICE_ERROR The device is not functioning properly and could not be reset.
**/
EFI_STATUS
EFIAPI
EmuGopSimpleTextInReset (
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
{
GOP_PRIVATE_DATA *Private;
EFI_KEY_DATA KeyData;
EFI_TPL OldTpl;
Private = GOP_PRIVATE_DATA_FROM_TEXT_IN_THIS (This);
if (Private->EmuGraphicsWindow == NULL) {
return EFI_SUCCESS;
}
//
// Enter critical section
//
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
//
// A reset is draining the Queue
//
while (Private->EmuGraphicsWindow->GetKey (Private->EmuGraphicsWindow, &KeyData) == EFI_SUCCESS) {
}
//
// Leave critical section and return
//
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
}
/**
Reads the next keystroke from the input device. The WaitForKey Event can
be used to test for existence of a keystroke via WaitForEvent () call.
@param This Protocol instance pointer.
@param Key A pointer to a buffer that is filled in with the keystroke
information for the key that was pressed.
@retval EFI_SUCCESS The keystroke information was returned.
@retval EFI_NOT_READY There was no keystroke data available.
@retval EFI_DEVICE_ERROR The keystroke information was not returned due to
hardware errors.
**/
EFI_STATUS
EFIAPI
EmuGopSimpleTextInReadKeyStroke (
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
OUT EFI_INPUT_KEY *Key
)
{
GOP_PRIVATE_DATA *Private;
EFI_STATUS Status;
EFI_TPL OldTpl;
EFI_KEY_DATA KeyData;
Private = GOP_PRIVATE_DATA_FROM_TEXT_IN_THIS (This);
if (Private->EmuGraphicsWindow == NULL) {
return EFI_NOT_READY;
}
//
// Enter critical section
//
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
Status = Private->EmuGraphicsWindow->GetKey (Private->EmuGraphicsWindow, &KeyData);
if (!EFI_ERROR (Status)) {
if ((KeyData.Key.ScanCode == 0) && (KeyData.Key.UnicodeChar == 0)) {
// Modifier key was pressed
Status = EFI_NOT_READY;
} else {
CopyMem (Key, &KeyData.Key, sizeof (EFI_INPUT_KEY));
}
}
//
// Leave critical section and return
//
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
SimpleTextIn and SimpleTextInEx Notify Wait Event
@param Event Event whose notification function is being invoked.
@param Context Pointer to GOP_PRIVATE_DATA.
**/
VOID
EFIAPI
EmuGopSimpleTextInWaitForKey (
IN EFI_EVENT Event,
IN VOID *Context
)
{
GOP_PRIVATE_DATA *Private;
EFI_STATUS Status;
EFI_TPL OldTpl;
Private = (GOP_PRIVATE_DATA *)Context;
if (Private->EmuGraphicsWindow == NULL) {
return;
}
//
// Enter critical section
//
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
Status = Private->EmuGraphicsWindow->CheckKey (Private->EmuGraphicsWindow);
if (!EFI_ERROR (Status)) {
//
// If a there is a key in the queue signal our event.
//
gBS->SignalEvent (Event);
}
//
// Leave critical section and return
//
gBS->RestoreTPL (OldTpl);
}
//
// Simple Text Input Ex protocol functions
//
/**
The Reset() function resets the input device hardware. As part
of initialization process, the firmware/device will make a quick
but reasonable attempt to verify that the device is functioning.
If the ExtendedVerification flag is TRUE the firmware may take
an extended amount of time to verify the device is operating on
reset. Otherwise the reset operation is to occur as quickly as
possible. The hardware verification process is not defined by
this specification and is left up to the platform firmware or
driver to implement.
@param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_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
EmuGopSimpleTextInExResetEx (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
/*++
Routine Description:
Reset the input device and optionaly run diagnostics
Arguments:
This - Protocol instance pointer.
ExtendedVerification - Driver may perform diagnostics on reset.
Returns:
EFI_SUCCESS - The device was reset.
**/
{
return EFI_SUCCESS;
}
/**
The function reads the next keystroke from the input device. If
there is no pending keystroke the function returns
EFI_NOT_READY. If there is a pending keystroke, then
KeyData.Key.ScanCode is the EFI scan code defined in Error!
Reference source not found. The KeyData.Key.UnicodeChar is the
actual printable character or is zero if the key does not
represent a printable character (control key, function key,
etc.). The KeyData.KeyState is shift state for the character
reflected in KeyData.Key.UnicodeChar or KeyData.Key.ScanCode .
When interpreting the data from this function, it should be
noted that if a class of printable characters that are
normally adjusted by shift modifiers (e.g. Shift Key + "f"
key) would be presented solely as a KeyData.Key.UnicodeChar
without the associated shift state. So in the previous example
of a Shift Key + "f" key being pressed, the only pertinent
data returned would be KeyData.Key.UnicodeChar with the value
of "F". This of course would not typically be the case for
non-printable characters such as the pressing of the Right
Shift Key + F10 key since the corresponding returned data
would be reflected both in the KeyData.KeyState.KeyShiftState
and KeyData.Key.ScanCode values. UEFI drivers which implement
the EFI_SIMPLE_TEXT_INPUT_EX protocol are required to return
KeyData.Key and KeyData.KeyState values. These drivers must
always return the most current state of
KeyData.KeyState.KeyShiftState and
KeyData.KeyState.KeyToggleState. It should also be noted that
certain input devices may not be able to produce shift or toggle
state information, and in those cases the high order bit in the
respective Toggle and Shift state fields should not be active.
@param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.
@param KeyData A pointer to a buffer that is filled in with
the keystroke state data for the key that was
pressed.
@retval EFI_SUCCESS The keystroke information was
returned.
@retval EFI_NOT_READY There was no keystroke data available.
EFI_DEVICE_ERROR The keystroke
information was not returned due to
hardware errors.
**/
EFI_STATUS
EFIAPI
EmuGopSimpleTextInExReadKeyStrokeEx (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
OUT EFI_KEY_DATA *KeyData
)
/*++
Routine Description:
Reads the next keystroke from the input device. The WaitForKey Event can
be used to test for existance of a keystroke via WaitForEvent () call.
Arguments:
This - Protocol instance pointer.
KeyData - A pointer to a buffer that is filled in with the keystroke
state data for the key that was pressed.
Returns:
EFI_SUCCESS - The keystroke information was returned.
EFI_NOT_READY - There was no keystroke data availiable.
EFI_DEVICE_ERROR - The keystroke information was not returned due to
hardware errors.
EFI_INVALID_PARAMETER - KeyData is NULL.
**/
{
EFI_STATUS Status;
GOP_PRIVATE_DATA *Private;
EFI_TPL OldTpl;
if (KeyData == NULL) {
return EFI_INVALID_PARAMETER;
}
Private = GOP_PRIVATE_DATA_FROM_TEXT_IN_EX_THIS (This);
if (Private->EmuGraphicsWindow == NULL) {
return EFI_NOT_READY;
}
//
// Enter critical section
//
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
Status = Private->EmuGraphicsWindow->GetKey (Private->EmuGraphicsWindow, KeyData);
//
// Leave critical section and return
//
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
The SetState() function allows the input device hardware to
have state settings adjusted.
@param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.
@param KeyToggleState Pointer to the EFI_KEY_TOGGLE_STATE to
set the state for the input device.
@retval EFI_SUCCESS The device state was set appropriately.
@retval EFI_DEVICE_ERROR The device is not functioning
correctly and could not have the
setting adjusted.
@retval EFI_UNSUPPORTED The device does not support the
ability to have its state set.
**/
EFI_STATUS
EFIAPI
EmuGopSimpleTextInExSetState (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN EFI_KEY_TOGGLE_STATE *KeyToggleState
)
{
GOP_PRIVATE_DATA *Private;
EFI_STATUS Status;
EFI_TPL OldTpl;
if (KeyToggleState == NULL) {
return EFI_INVALID_PARAMETER;
}
Private = GOP_PRIVATE_DATA_FROM_TEXT_IN_EX_THIS (This);
if (Private->EmuGraphicsWindow == NULL) {
return EFI_NOT_READY;
}
if (((Private->KeyState.KeyToggleState & EFI_TOGGLE_STATE_VALID) != EFI_TOGGLE_STATE_VALID) ||
((*KeyToggleState & EFI_TOGGLE_STATE_VALID) != EFI_TOGGLE_STATE_VALID))
{
return EFI_UNSUPPORTED;
}
//
// Enter critical section
//
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
Status = Private->EmuGraphicsWindow->KeySetState (Private->EmuGraphicsWindow, KeyToggleState);
//
// Leave critical section and return
//
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
SimpleTextIn and SimpleTextInEx Notify Wait Event
@param Event Event whose notification function is being invoked.
@param Context Pointer to GOP_PRIVATE_DATA.
**/
VOID
EFIAPI
EmuGopRegisterKeyCallback (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EMU_GOP_SIMPLE_TEXTIN_EX_NOTIFY *ExNotify = (EMU_GOP_SIMPLE_TEXTIN_EX_NOTIFY *)Context;
ExNotify->KeyNotificationFn (&ExNotify->KeyData);
}
/**
The RegisterKeystrokeNotify() function registers a function
which will be called when a specified keystroke will occur.
@param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.
@param KeyData A pointer to a buffer that is filled in with
the keystroke information for the key that was
pressed.
@param KeyNotificationFunction Points to the function to be
called when the key sequence
is typed specified by KeyData.
@param NotifyHandle Points to the unique handle assigned to
the registered notification.
@retval EFI_SUCCESS The device state was set
appropriately.
@retval EFI_OUT_OF_RESOURCES Unable to allocate necessary
data structures.
**/
EFI_STATUS
EFIAPI
EmuGopSimpleTextInExRegisterKeyNotify (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN EFI_KEY_DATA *KeyData,
IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,
OUT VOID **NotifyHandle
)
{
EFI_STATUS Status;
GOP_PRIVATE_DATA *Private;
EMU_GOP_SIMPLE_TEXTIN_EX_NOTIFY *CurrentNotify;
LIST_ENTRY *Link;
EMU_GOP_SIMPLE_TEXTIN_EX_NOTIFY *NewNotify;
if ((KeyData == NULL) || (KeyNotificationFunction == NULL) || (NotifyHandle == NULL)) {
return EFI_INVALID_PARAMETER;
}
Private = GOP_PRIVATE_DATA_FROM_TEXT_IN_EX_THIS (This);
//
// Return EFI_SUCCESS if the (KeyData, NotificationFunction) is already registered.
//
for (Link = Private->NotifyList.ForwardLink; Link != &Private->NotifyList; Link = Link->ForwardLink) {
CurrentNotify = CR (
Link,
EMU_GOP_SIMPLE_TEXTIN_EX_NOTIFY,
NotifyEntry,
EMU_GOP_SIMPLE_TEXTIN_EX_NOTIFY_SIGNATURE
);
if (GopPrivateIsKeyRegistered (&CurrentNotify->KeyData, KeyData)) {
if (CurrentNotify->KeyNotificationFn == KeyNotificationFunction) {
*NotifyHandle = CurrentNotify->NotifyHandle;
return EFI_SUCCESS;
}
}
}
//
// Allocate resource to save the notification function
//
NewNotify = (EMU_GOP_SIMPLE_TEXTIN_EX_NOTIFY *)AllocateZeroPool (sizeof (EMU_GOP_SIMPLE_TEXTIN_EX_NOTIFY));
if (NewNotify == NULL) {
return EFI_OUT_OF_RESOURCES;
}
NewNotify->Signature = EMU_GOP_SIMPLE_TEXTIN_EX_NOTIFY_SIGNATURE;
NewNotify->KeyNotificationFn = KeyNotificationFunction;
NewNotify->NotifyHandle = (EFI_HANDLE)NewNotify;
CopyMem (&NewNotify->KeyData, KeyData, sizeof (KeyData));
InsertTailList (&Private->NotifyList, &NewNotify->NotifyEntry);
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
EmuGopRegisterKeyCallback,
NewNotify,
&NewNotify->Event
);
ASSERT_EFI_ERROR (Status);
*NotifyHandle = NewNotify->NotifyHandle;
return EFI_SUCCESS;
}
/**
The UnregisterKeystrokeNotify() function removes the
notification which was previously registered.
@param This A pointer to the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL instance.
@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
EmuGopSimpleTextInExUnregisterKeyNotify (
IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
IN VOID *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;
EMU_GOP_SIMPLE_TEXTIN_EX_NOTIFY *CurrentNotify;
if (NotificationHandle == NULL) {
return EFI_INVALID_PARAMETER;
}
if (((EMU_GOP_SIMPLE_TEXTIN_EX_NOTIFY *)NotificationHandle)->Signature != EMU_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,
EMU_GOP_SIMPLE_TEXTIN_EX_NOTIFY,
NotifyEntry,
EMU_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
EmuGopInitializeSimpleTextInForWindow (
IN GOP_PRIVATE_DATA *Private
)
{
EFI_STATUS Status;
//
// Initialize Simple Text In protoocol
//
Private->SimpleTextIn.Reset = EmuGopSimpleTextInReset;
Private->SimpleTextIn.ReadKeyStroke = EmuGopSimpleTextInReadKeyStroke;
Status = gBS->CreateEvent (
EVT_NOTIFY_WAIT,
TPL_NOTIFY,
EmuGopSimpleTextInWaitForKey,
Private,
&Private->SimpleTextIn.WaitForKey
);
ASSERT_EFI_ERROR (Status);
//
// Initialize Simple Text In Ex
//
Private->SimpleTextInEx.Reset = EmuGopSimpleTextInExResetEx;
Private->SimpleTextInEx.ReadKeyStrokeEx = EmuGopSimpleTextInExReadKeyStrokeEx;
Private->SimpleTextInEx.SetState = EmuGopSimpleTextInExSetState;
Private->SimpleTextInEx.RegisterKeyNotify = EmuGopSimpleTextInExRegisterKeyNotify;
Private->SimpleTextInEx.UnregisterKeyNotify = EmuGopSimpleTextInExUnregisterKeyNotify;
Private->SimpleTextInEx.Reset (&Private->SimpleTextInEx, FALSE);
InitializeListHead (&Private->NotifyList);
Status = gBS->CreateEvent (
EVT_NOTIFY_WAIT,
TPL_NOTIFY,
EmuGopSimpleTextInWaitForKey,
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
EmuGopSimplePointerReset (
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->EmuGraphicsWindow == NULL) {
return EFI_SUCCESS;
}
//
// Enter critical section
//
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
//
// A reset is draining the Queue
//
while (Private->EmuGraphicsWindow->GetPointerState (Private->EmuGraphicsWindow, &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
EmuGopSimplePointerGetState (
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->EmuGraphicsWindow == NULL) {
return EFI_NOT_READY;
}
//
// Enter critical section
//
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
Status = Private->EmuGraphicsWindow->GetPointerState (Private->EmuGraphicsWindow, 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
EmuGopSimplePointerWaitForInput (
IN EFI_EVENT Event,
IN VOID *Context
)
{
GOP_PRIVATE_DATA *Private;
EFI_STATUS Status;
EFI_TPL OldTpl;
Private = (GOP_PRIVATE_DATA *)Context;
if (Private->EmuGraphicsWindow == NULL) {
return;
}
//
// Enter critical section
//
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
Status = Private->EmuGraphicsWindow->CheckPointer (Private->EmuGraphicsWindow);
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
EmuGopInitializeSimplePointerForWindow (
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 = EmuGopSimplePointerReset;
Private->SimplePointer.GetState = EmuGopSimplePointerGetState;
Private->SimplePointer.Mode = &Private->PointerMode;
Status = gBS->CreateEvent (
EVT_NOTIFY_WAIT,
TPL_NOTIFY,
EmuGopSimplePointerWaitForInput,
Private,
&Private->SimplePointer.WaitForInput
);
return Status;
}
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