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audk/IntelFrameworkModulePkg/Bus/Isa/Ps2MouseAbsolutePointerDxe/Ps2MouseAbsolutePointer.c

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/**@file
A faked PS/2 Touchpad driver. Routines that interacts with callers,
conforming to EFI driver model
Copyright (c) 2006 - 2007, Intel Corporation
All rights reserved. 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 "Ps2MouseAbsolutePointer.h"
#include "CommPs2.h"
//
// DriverBinding Protocol Instance
//
EFI_DRIVER_BINDING_PROTOCOL gPS2MouseAbsolutePointerDriver = {
PS2MouseAbsolutePointerDriverSupported,
PS2MouseAbsolutePointerDriverStart,
PS2MouseAbsolutePointerDriverStop,
0x1,
NULL,
NULL
};
EFI_STATUS
EFIAPI
PS2MouseAbsolutePointerDriverSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
ControllerDriver Protocol Method
Arguments:
Returns:
--*/
// GC_TODO: This - add argument and description to function comment
// GC_TODO: Controller - add argument and description to function comment
// GC_TODO: RemainingDevicePath - add argument and description to function comment
{
EFI_STATUS Status;
EFI_ISA_IO_PROTOCOL *IsaIo;
Status = EFI_SUCCESS;
//
// Open the IO Abstraction(s) needed to perform the supported test
//
Status = gBS->OpenProtocol (
Controller,
&gEfiIsaIoProtocolGuid,
(VOID **) &IsaIo,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Use the ISA I/O Protocol to see if Controller is the Mouse controller
//
switch (IsaIo->ResourceList->Device.HID) {
case EISA_PNP_ID (0xF03):
//
// Microsoft PS/2 style mouse
//
case EISA_PNP_ID (0xF13):
//
// PS/2 Port for PS/2-style Mice
//
break;
case EISA_PNP_ID (0x303):
//
// IBM Enhanced (101/102-key, PS/2 mouse support)
//
if (IsaIo->ResourceList->Device.UID == 1) {
break;
}
default:
Status = EFI_UNSUPPORTED;
break;
}
//
// Close the I/O Abstraction(s) used to perform the supported test
//
gBS->CloseProtocol (
Controller,
&gEfiIsaIoProtocolGuid,
This->DriverBindingHandle,
Controller
);
return Status;
}
EFI_STATUS
EFIAPI
PS2MouseAbsolutePointerDriverStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
Start protocol interfaces for the mouse device handles.
Arguments:
This - Protocol instance pointer.
Controller - Handle of device to bind driver to.
RemainingDevicePath - Not used.
Returns:
EFI_SUCCESS - This driver is added to DeviceHandle.
other - Errors occurred.
--*/
{
EFI_STATUS Status;
EFI_STATUS EmptyStatus;
EFI_ISA_IO_PROTOCOL *IsaIo;
PS2_MOUSE_ABSOLUTE_POINTER_DEV *MouseAbsolutePointerDev;
UINT8 Data;
EFI_TPL OldTpl;
EFI_STATUS_CODE_VALUE StatusCode;
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
StatusCode = 0;
MouseAbsolutePointerDev = NULL;
IsaIo = NULL;
//
// Open the device path protocol
//
Status = gBS->OpenProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
(VOID **) &ParentDevicePath,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Report that the keyboard is being enabled
//
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
EFI_PERIPHERAL_MOUSE | EFI_P_PC_ENABLE,
ParentDevicePath
);
//
// Get the ISA I/O Protocol on Controller's handle
//
Status = gBS->OpenProtocol (
Controller,
&gEfiIsaIoProtocolGuid,
(VOID **) &IsaIo,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
return EFI_INVALID_PARAMETER;
}
//
// Raise TPL to avoid keyboard operation impact
//
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
//
// Allocate private data
//
MouseAbsolutePointerDev = AllocateZeroPool (sizeof (PS2_MOUSE_ABSOLUTE_POINTER_DEV));
if (MouseAbsolutePointerDev == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ErrorExit;
}
//
// Setup the device instance
//
MouseAbsolutePointerDev->Signature = PS2_MOUSE_ABSOLUTE_POINTER_DEV_SIGNATURE;
MouseAbsolutePointerDev->Handle = Controller;
MouseAbsolutePointerDev->SampleRate = SSR_20;
MouseAbsolutePointerDev->Resolution = CMR4;
MouseAbsolutePointerDev->Scaling = SF1;
MouseAbsolutePointerDev->DataPackageSize = 3;
MouseAbsolutePointerDev->IsaIo = IsaIo;
MouseAbsolutePointerDev->DevicePath = ParentDevicePath;
//
// Resolution = 4 counts/mm
//
MouseAbsolutePointerDev->Mode.AbsoluteMaxX = 1024;
MouseAbsolutePointerDev->Mode.AbsoluteMinX = 0;
MouseAbsolutePointerDev->Mode.AbsoluteMaxY = 798;
MouseAbsolutePointerDev->Mode.AbsoluteMinY = 0;
MouseAbsolutePointerDev->Mode.AbsoluteMaxZ = 0;
MouseAbsolutePointerDev->Mode.AbsoluteMinZ = 0;
MouseAbsolutePointerDev->Mode.Attributes = 0x03;
MouseAbsolutePointerDev->AbsolutePointerProtocol.Reset = MouseAbsolutePointerReset;
MouseAbsolutePointerDev->AbsolutePointerProtocol.GetState = MouseAbsolutePointerGetState;
MouseAbsolutePointerDev->AbsolutePointerProtocol.Mode = &(MouseAbsolutePointerDev->Mode);
//
// Initialize keyboard controller if necessary
//
IsaIo->Io.Read (IsaIo, EfiIsaIoWidthUint8, KBC_CMD_STS_PORT, 1, &Data);
if ((Data & KBC_SYSF) != KBC_SYSF) {
Status = KbcSelfTest (IsaIo);
if (EFI_ERROR (Status)) {
StatusCode = EFI_PERIPHERAL_MOUSE | EFI_P_EC_CONTROLLER_ERROR;
goto ErrorExit;
}
}
KbcEnableAux (IsaIo);
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
EFI_PERIPHERAL_MOUSE | EFI_P_PC_PRESENCE_DETECT,
ParentDevicePath
);
//
// Reset the mouse
//
Status = MouseAbsolutePointerDev->AbsolutePointerProtocol.Reset (&MouseAbsolutePointerDev->AbsolutePointerProtocol, TRUE);
if (EFI_ERROR (Status)) {
//
// mouse not connected
//
Status = EFI_SUCCESS;
StatusCode = EFI_PERIPHERAL_MOUSE | EFI_P_EC_NOT_DETECTED;
goto ErrorExit;
}
//
// Setup the WaitForKey event
//
Status = gBS->CreateEvent (
EVT_NOTIFY_WAIT,
TPL_NOTIFY,
MouseAbsolutePointerWaitForInput,
MouseAbsolutePointerDev,
&((MouseAbsolutePointerDev->AbsolutePointerProtocol).WaitForInput)
);
if (EFI_ERROR (Status)) {
Status = EFI_OUT_OF_RESOURCES;
goto ErrorExit;
}
//
// Setup a periodic timer, used to poll mouse state
//
Status = gBS->CreateEvent (
EVT_TIMER | EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
PollMouseAbsolutePointer,
MouseAbsolutePointerDev,
&MouseAbsolutePointerDev->TimerEvent
);
if (EFI_ERROR (Status)) {
Status = EFI_OUT_OF_RESOURCES;
goto ErrorExit;
}
//
// Start timer to poll mouse (100 samples per second)
//
Status = gBS->SetTimer (MouseAbsolutePointerDev->TimerEvent, TimerPeriodic, 100000);
if (EFI_ERROR (Status)) {
Status = EFI_OUT_OF_RESOURCES;
goto ErrorExit;
}
MouseAbsolutePointerDev->ControllerNameTable = NULL;
AddUnicodeString2 (
"eng",
gPs2MouseAbsolutePointerComponentName.SupportedLanguages,
&MouseAbsolutePointerDev->ControllerNameTable,
L"Faked PS/2 Touchpad Device",
TRUE
);
AddUnicodeString2 (
"en",
gPs2MouseAbsolutePointerComponentName2.SupportedLanguages,
&MouseAbsolutePointerDev->ControllerNameTable,
L"Faked PS/2 Touchpad Device",
FALSE
);
//
// Install protocol interfaces for the mouse device.
//
Status = gBS->InstallMultipleProtocolInterfaces (
&Controller,
&gEfiAbsolutePointerProtocolGuid,
&MouseAbsolutePointerDev->AbsolutePointerProtocol,
NULL
);
if (EFI_ERROR (Status)) {
goto ErrorExit;
}
gBS->RestoreTPL (OldTpl);
return Status;
ErrorExit:
KbcDisableAux (IsaIo);
if (StatusCode != 0) {
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_ERROR_CODE | EFI_ERROR_MINOR,
StatusCode,
ParentDevicePath
);
}
if ((MouseAbsolutePointerDev != NULL) && (MouseAbsolutePointerDev->AbsolutePointerProtocol.WaitForInput != NULL)) {
gBS->CloseEvent (MouseAbsolutePointerDev->AbsolutePointerProtocol.WaitForInput);
}
if ((MouseAbsolutePointerDev != NULL) && (MouseAbsolutePointerDev->TimerEvent != NULL)) {
gBS->CloseEvent (MouseAbsolutePointerDev->TimerEvent);
}
if ((MouseAbsolutePointerDev != NULL) && (MouseAbsolutePointerDev->ControllerNameTable != NULL)) {
FreeUnicodeStringTable (MouseAbsolutePointerDev->ControllerNameTable);
}
//
// Since there will be no timer handler for mouse input any more,
// exhaust input data just in case there is still mouse data left
//
EmptyStatus = EFI_SUCCESS;
while (!EFI_ERROR (EmptyStatus)) {
EmptyStatus = In8042Data (IsaIo, &Data);
}
if (MouseAbsolutePointerDev != NULL) {
gBS->FreePool (MouseAbsolutePointerDev);
}
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
gBS->CloseProtocol (
Controller,
&gEfiIsaIoProtocolGuid,
This->DriverBindingHandle,
Controller
);
gBS->RestoreTPL (OldTpl);
return Status;
}
EFI_STATUS
EFIAPI
PS2MouseAbsolutePointerDriverStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
/*++
Routine Description:
Arguments:
Returns:
--*/
// GC_TODO: This - add argument and description to function comment
// GC_TODO: Controller - add argument and description to function comment
// GC_TODO: NumberOfChildren - add argument and description to function comment
// GC_TODO: ChildHandleBuffer - add argument and description to function comment
// GC_TODO: EFI_SUCCESS - add return value to function comment
// GC_TODO: EFI_SUCCESS - add return value to function comment
{
EFI_STATUS Status;
EFI_ABSOLUTE_POINTER_PROTOCOL *AbsolutePointerProtocol;
PS2_MOUSE_ABSOLUTE_POINTER_DEV *MouseAbsolutePointerDev;
UINT8 Data;
Status = gBS->OpenProtocol (
Controller,
&gEfiAbsolutePointerProtocolGuid,
(VOID **) &AbsolutePointerProtocol,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return EFI_SUCCESS;
}
MouseAbsolutePointerDev = PS2_MOUSE_ABSOLUTE_POINTER_DEV_FROM_THIS (AbsolutePointerProtocol);
//
// Report that the keyboard is being disabled
//
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
EFI_PERIPHERAL_MOUSE | EFI_P_PC_DISABLE,
MouseAbsolutePointerDev->DevicePath
);
Status = gBS->UninstallProtocolInterface (
Controller,
&gEfiAbsolutePointerProtocolGuid,
&MouseAbsolutePointerDev->AbsolutePointerProtocol
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Disable mouse on keyboard controller
//
KbcDisableAux (MouseAbsolutePointerDev->IsaIo);
//
// Cancel mouse data polling timer, close timer event
//
gBS->SetTimer (MouseAbsolutePointerDev->TimerEvent, TimerCancel, 0);
gBS->CloseEvent (MouseAbsolutePointerDev->TimerEvent);
//
// Since there will be no timer handler for mouse input any more,
// exhaust input data just in case there is still mouse data left
//
Status = EFI_SUCCESS;
while (!EFI_ERROR (Status)) {
Status = In8042Data (MouseAbsolutePointerDev->IsaIo, &Data);
}
gBS->CloseEvent (MouseAbsolutePointerDev->AbsolutePointerProtocol.WaitForInput);
FreeUnicodeStringTable (MouseAbsolutePointerDev->ControllerNameTable);
gBS->FreePool (MouseAbsolutePointerDev);
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
gBS->CloseProtocol (
Controller,
&gEfiIsaIoProtocolGuid,
This->DriverBindingHandle,
Controller
);
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
MouseAbsolutePointerReset (
IN EFI_ABSOLUTE_POINTER_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
/*++
Routine Description:
Reset the Mouse and do BAT test for it, if ExtendedVerification isTRUE and there is a mouse device connectted to system
Arguments:
This - Pointer of simple pointer Protocol.
ExtendedVerification - Whether configure mouse parameters. True: do; FALSE: skip.
Returns:
EFI_SUCCESS - The command byte is written successfully.
EFI_DEVICE_ERROR - Errors occurred during reseting keyboard.
--*/
{
EFI_STATUS Status;
PS2_MOUSE_ABSOLUTE_POINTER_DEV *MouseAbsolutePointerDev;
EFI_TPL OldTpl;
BOOLEAN KeyboardEnable;
UINT8 Data;
MouseAbsolutePointerDev = PS2_MOUSE_ABSOLUTE_POINTER_DEV_FROM_THIS (This);
//
// Report reset progress code
//
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
EFI_PERIPHERAL_MOUSE | EFI_P_PC_RESET,
MouseAbsolutePointerDev->DevicePath
);
KeyboardEnable = FALSE;
//
// Raise TPL to avoid keyboard operation impact
//
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
ZeroMem (&MouseAbsolutePointerDev->State, sizeof (EFI_ABSOLUTE_POINTER_STATE));
MouseAbsolutePointerDev->StateChanged = FALSE;
//
// Exhaust input data
//
Status = EFI_SUCCESS;
while (!EFI_ERROR (Status)) {
Status = In8042Data (MouseAbsolutePointerDev->IsaIo, &Data);
}
CheckKbStatus (MouseAbsolutePointerDev->IsaIo, &KeyboardEnable);
KbcDisableKb (MouseAbsolutePointerDev->IsaIo);
MouseAbsolutePointerDev->IsaIo->Io.Read (MouseAbsolutePointerDev->IsaIo, EfiIsaIoWidthUint8, KBC_CMD_STS_PORT, 1, &Data);
//
// if there's data block on KBC data port, read it out
//
if ((Data & KBC_OUTB) == KBC_OUTB) {
MouseAbsolutePointerDev->IsaIo->Io.Read (MouseAbsolutePointerDev->IsaIo, EfiIsaIoWidthUint8, KBC_DATA_PORT, 1, &Data);
}
Status = EFI_SUCCESS;
//
// The PS2 mouse driver reset behavior is always successfully return no matter wheater or not there is mouse connected to system.
// This behavior is needed by performance speed. The following mouse command only succeessfully finish when mouse device is
// connected to system, so if PS2 mouse device not connect to system or user not ask for, we skip the mouse configuration and enabling
//
if (ExtendedVerification && CheckMouseAbsolutePointerConnect (MouseAbsolutePointerDev)) {
//
// Send mouse reset command and set mouse default configure
//
Status = PS2MouseReset (MouseAbsolutePointerDev->IsaIo);
if (EFI_ERROR (Status)) {
Status = EFI_DEVICE_ERROR;
goto Exit;
}
Status = PS2MouseSetSampleRate (MouseAbsolutePointerDev->IsaIo, MouseAbsolutePointerDev->SampleRate);
if (EFI_ERROR (Status)) {
Status = EFI_DEVICE_ERROR;
goto Exit;
}
Status = PS2MouseSetResolution (MouseAbsolutePointerDev->IsaIo, MouseAbsolutePointerDev->Resolution);
if (EFI_ERROR (Status)) {
Status = EFI_DEVICE_ERROR;
goto Exit;
}
Status = PS2MouseSetScaling (MouseAbsolutePointerDev->IsaIo, MouseAbsolutePointerDev->Scaling);
if (EFI_ERROR (Status)) {
Status = EFI_DEVICE_ERROR;
goto Exit;
}
Status = PS2MouseEnable (MouseAbsolutePointerDev->IsaIo);
if (EFI_ERROR (Status)) {
Status = EFI_DEVICE_ERROR;
goto Exit;
}
}
Exit:
gBS->RestoreTPL (OldTpl);
if (KeyboardEnable) {
KbcEnableKb (MouseAbsolutePointerDev->IsaIo);
}
return Status;
}
BOOLEAN
CheckMouseAbsolutePointerConnect (
IN PS2_MOUSE_ABSOLUTE_POINTER_DEV *MouseAbsolutePointerDev
)
/*++
Routine Description:
Check whether there is Ps/2 mouse device in system
Arguments:
PS2_MOUSE_DEV - Mouse Private Data Structure
Returns:
TRUE - Keyboard in System.
FALSE - Keyboard not in System.
--*/
{
EFI_STATUS Status;
Status = PS2MouseEnable (MouseAbsolutePointerDev->IsaIo);
if (!EFI_ERROR (Status)) {
return TRUE;
}
return FALSE;
}
EFI_STATUS
EFIAPI
MouseAbsolutePointerGetState (
IN EFI_ABSOLUTE_POINTER_PROTOCOL *This,
IN OUT EFI_ABSOLUTE_POINTER_STATE *State
)
/*++
Routine Description:
GC_TODO: Add function description
Arguments:
This - GC_TODO: add argument description
State - GC_TODO: add argument description
Returns:
EFI_INVALID_PARAMETER - GC_TODO: Add description for return value
EFI_NOT_READY - GC_TODO: Add description for return value
EFI_SUCCESS - GC_TODO: Add description for return value
--*/
{
PS2_MOUSE_ABSOLUTE_POINTER_DEV *MouseAbsolutePointerDev;
EFI_TPL OldTpl;
MouseAbsolutePointerDev = PS2_MOUSE_ABSOLUTE_POINTER_DEV_FROM_THIS (This);
if (State == NULL) {
return EFI_INVALID_PARAMETER;
}
if (!MouseAbsolutePointerDev->StateChanged) {
return EFI_NOT_READY;
}
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
CopyMem (State, &(MouseAbsolutePointerDev->State), sizeof (EFI_ABSOLUTE_POINTER_STATE));
//
// clear mouse state
//
MouseAbsolutePointerDev->State.CurrentX = 0;
MouseAbsolutePointerDev->State.CurrentY = 0;
MouseAbsolutePointerDev->State.CurrentZ = 0;
MouseAbsolutePointerDev->State.ActiveButtons = 0x0;
MouseAbsolutePointerDev->StateChanged = FALSE;
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
}
VOID
EFIAPI
MouseAbsolutePointerWaitForInput (
IN EFI_EVENT Event,
IN VOID *Context
)
/*++
Routine Description:
Event notification function for SIMPLE_POINTER.WaitForInput event
Signal the event if there is input from mouse
Arguments:
Returns:
--*/
// GC_TODO: Event - add argument and description to function comment
// GC_TODO: Context - add argument and description to function comment
{
PS2_MOUSE_ABSOLUTE_POINTER_DEV *MouseAbsolutePointerDev;
MouseAbsolutePointerDev = (PS2_MOUSE_ABSOLUTE_POINTER_DEV *) Context;
//
// Someone is waiting on the mouse event, if there's
// input from mouse, signal the event
//
if (MouseAbsolutePointerDev->StateChanged) {
gBS->SignalEvent (Event);
}
}
VOID
EFIAPI
PollMouseAbsolutePointer(
IN EFI_EVENT Event,
IN VOID *Context
)
/*++
Routine Description:
Event notification function for TimerEvent event
If mouse device is connected to system, try to get the mouse packet data
Arguments:
Event - TimerEvent in PS2_MOUSE_DEV
Context - Pointer to PS2_MOUSE_DEV structure
Returns:
None
--*/
{
PS2_MOUSE_ABSOLUTE_POINTER_DEV *MouseAbsolutePointerDev;
MouseAbsolutePointerDev = (PS2_MOUSE_ABSOLUTE_POINTER_DEV *) Context;
//
// Polling mouse packet data
//
PS2MouseGetPacket (MouseAbsolutePointerDev);
}
/**
The user Entry Point for module Ps2MouseAbsolutePointer. The user code starts with this function.
@param[in] ImageHandle The firmware allocated handle for the EFI image.
@param[in] SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
@retval other Some error occurs when executing this entry point.
**/
EFI_STATUS
EFIAPI
InitializePs2MouseAbsolutePointer(
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
//
// Install driver model protocol(s).
//
Status = EfiLibInstallDriverBindingComponentName2 (
ImageHandle,
SystemTable,
&gPS2MouseAbsolutePointerDriver,
ImageHandle,
&gPs2MouseAbsolutePointerComponentName,
&gPs2MouseAbsolutePointerComponentName2
);
ASSERT_EFI_ERROR (Status);
return Status;
}
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