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author | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-06-28 16:47:23 +0000 |
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committer | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-06-28 16:47:23 +0000 |
commit | bb89ec1a7ec2f8d35033df9e47b3604925da3bd3 (patch) | |
tree | 32d38e02ccab98dbac4c3014a12ac365775e8eb3 /EmulatorPkg/EmuGopDxe/GopInput.c | |
parent | d3e0289ccf641481f2cbdcbb0d5868c393b7edbb (diff) | |
download | edk2-bb89ec1a7ec2f8d35033df9e47b3604925da3bd3.zip edk2-bb89ec1a7ec2f8d35033df9e47b3604925da3bd3.tar.gz edk2-bb89ec1a7ec2f8d35033df9e47b3604925da3bd3.tar.bz2 |
InOsEmuPkg: Rename package to EmulatorPkg & Sec to Host
* Rename InOsEmuPkg to EmulatorPkg
* Rename Unix/Sec to Unix/Host
Signed-off-by: jljusten
Reviewed-by: andrewfish
Reviewed-by: geekboy15a
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11918 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'EmulatorPkg/EmuGopDxe/GopInput.c')
-rw-r--r-- | EmulatorPkg/EmuGopDxe/GopInput.c | 897 |
1 files changed, 897 insertions, 0 deletions
diff --git a/EmulatorPkg/EmuGopDxe/GopInput.c b/EmulatorPkg/EmuGopDxe/GopInput.c new file mode 100644 index 0000000..0bc2eb5 --- /dev/null +++ b/EmulatorPkg/EmuGopDxe/GopInput.c @@ -0,0 +1,897 @@ +/*++ @file + +Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR> +Portions copyright (c) 2010 0 2011,Apple Inc. All rights reserved.<BR> +This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + + +**/ + +#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); + 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. + +**/ +{ + GOP_PRIVATE_DATA *Private; + + Private = GOP_PRIVATE_DATA_FROM_TEXT_IN_EX_THIS (This); + + 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_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; + + 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->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 EFI_HANDLE *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 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; + 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; +} |