tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
audk/MdeModulePkg/Bus/Isa/Ps2MouseDxe/Ps2Mouse.c

800 lines
20 KiB
C
Raw Blame History

/** @file
PS/2 Mouse driver. Routines that interacts with callers,
conforming to EFI driver model.
Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "Ps2Mouse.h"
#include "CommPs2.h"
///
/// DriverBinding Protocol Instance
///
EFI_DRIVER_BINDING_PROTOCOL gPS2MouseDriver = {
PS2MouseDriverSupported,
PS2MouseDriverStart,
PS2MouseDriverStop,
0xa,
NULL,
NULL
};
/**
Test to see if this driver supports ControllerHandle. Any ControllerHandle
than contains a IsaIo protocol can be supported.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to test
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver supports this device
@retval EFI_ALREADY_STARTED This driver is already running on this device
@retval other This driver does not support this device
**/
EFI_STATUS
EFIAPI
PS2MouseDriverSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_STATUS Status;
EFI_SIO_PROTOCOL *Sio;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
ACPI_HID_DEVICE_PATH *Acpi;
//
// Check whether the controller is keyboard.
//
Status = gBS->OpenProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
(VOID **) &DevicePath,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return Status;
}
do {
Acpi = (ACPI_HID_DEVICE_PATH *) DevicePath;
DevicePath = NextDevicePathNode (DevicePath);
} while (!IsDevicePathEnd (DevicePath));
if (DevicePathType (Acpi) != ACPI_DEVICE_PATH ||
(DevicePathSubType (Acpi) != ACPI_DP && DevicePathSubType (Acpi) != ACPI_EXTENDED_DP)) {
return EFI_UNSUPPORTED;
}
switch (Acpi->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 (Acpi->UID == 1) {
break;
}
default:
return EFI_UNSUPPORTED;
break;
}
//
// Open the IO Abstraction(s) needed to perform the supported test
//
Status = gBS->OpenProtocol (
Controller,
&gEfiSioProtocolGuid,
(VOID **) &Sio,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Close the I/O Abstraction(s) used to perform the supported test
//
gBS->CloseProtocol (
Controller,
&gEfiSioProtocolGuid,
This->DriverBindingHandle,
Controller
);
return Status;
}
/**
Start this driver on ControllerHandle by opening a Sio protocol, creating
PS2_MOUSE_DEV device and install gEfiSimplePointerProtocolGuid finally.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to bind driver to
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver is added to ControllerHandle
@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
@retval other This driver does not support this device
**/
EFI_STATUS
EFIAPI
PS2MouseDriverStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_STATUS Status;
EFI_STATUS EmptyStatus;
EFI_SIO_PROTOCOL *Sio;
PS2_MOUSE_DEV *MouseDev;
UINT8 Data;
EFI_TPL OldTpl;
EFI_STATUS_CODE_VALUE StatusCode;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
StatusCode = 0;
//
// Open the device path protocol
//
Status = gBS->OpenProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
(VOID **) &DevicePath,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
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,
DevicePath
);
//
// Get the ISA I/O Protocol on Controller's handle
//
Status = gBS->OpenProtocol (
Controller,
&gEfiSioProtocolGuid,
(VOID **) &Sio,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Raise TPL to avoid keyboard operation impact
//
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
//
// Allocate private data
//
MouseDev = AllocateZeroPool (sizeof (PS2_MOUSE_DEV));
if (MouseDev == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ErrorExit;
}
//
// Setup the device instance
//
MouseDev->Signature = PS2_MOUSE_DEV_SIGNATURE;
MouseDev->Handle = Controller;
MouseDev->SampleRate = SampleRate20;
MouseDev->Resolution = MouseResolution4;
MouseDev->Scaling = Scaling1;
MouseDev->DataPackageSize = 3;
MouseDev->DevicePath = DevicePath;
//
// Resolution = 4 counts/mm
//
MouseDev->Mode.ResolutionX = 4;
MouseDev->Mode.ResolutionY = 4;
MouseDev->Mode.LeftButton = TRUE;
MouseDev->Mode.RightButton = TRUE;
MouseDev->SimplePointerProtocol.Reset = MouseReset;
MouseDev->SimplePointerProtocol.GetState = MouseGetState;
MouseDev->SimplePointerProtocol.Mode = &(MouseDev->Mode);
//
// Initialize keyboard controller if necessary
//
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
EFI_PERIPHERAL_MOUSE | EFI_P_MOUSE_PC_SELF_TEST,
DevicePath
);
Data = IoRead8 (KBC_CMD_STS_PORT);
//
// Fix for random hangs in System waiting for the Key if no KBC is present in BIOS.
//
if ((Data & (KBC_PARE | KBC_TIM)) == (KBC_PARE | KBC_TIM)) {
//
// If nobody decodes KBC I/O port, it will read back as 0xFF.
// Check the Time-Out and Parity bit to see if it has an active KBC in system
//
Status = EFI_DEVICE_ERROR;
StatusCode = EFI_PERIPHERAL_MOUSE | EFI_P_EC_NOT_DETECTED;
goto ErrorExit;
}
if ((Data & KBC_SYSF) != KBC_SYSF) {
Status = KbcSelfTest ();
if (EFI_ERROR (Status)) {
StatusCode = EFI_PERIPHERAL_MOUSE | EFI_P_EC_CONTROLLER_ERROR;
goto ErrorExit;
}
}
KbcEnableAux ();
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
EFI_PERIPHERAL_MOUSE | EFI_P_PC_PRESENCE_DETECT,
DevicePath
);
//
// Reset the mouse
//
Status = MouseDev->SimplePointerProtocol.Reset (
&MouseDev->SimplePointerProtocol,
FeaturePcdGet (PcdPs2MouseExtendedVerification)
);
if (EFI_ERROR (Status)) {
//
// mouse not connected
//
Status = EFI_SUCCESS;
StatusCode = EFI_PERIPHERAL_MOUSE | EFI_P_EC_NOT_DETECTED;
goto ErrorExit;
}
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
EFI_PERIPHERAL_MOUSE | EFI_P_PC_DETECTED,
DevicePath
);
//
// Setup the WaitForKey event
//
Status = gBS->CreateEvent (
EVT_NOTIFY_WAIT,
TPL_NOTIFY,
MouseWaitForInput,
MouseDev,
&((MouseDev->SimplePointerProtocol).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,
PollMouse,
MouseDev,
&MouseDev->TimerEvent
);
if (EFI_ERROR (Status)) {
Status = EFI_OUT_OF_RESOURCES;
goto ErrorExit;
}
//
// Start timer to poll mouse (100 samples per second)
//
Status = gBS->SetTimer (MouseDev->TimerEvent, TimerPeriodic, 100000);
if (EFI_ERROR (Status)) {
Status = EFI_OUT_OF_RESOURCES;
goto ErrorExit;
}
MouseDev->ControllerNameTable = NULL;
AddUnicodeString2 (
"eng",
gPs2MouseComponentName.SupportedLanguages,
&MouseDev->ControllerNameTable,
L"PS/2 Mouse Device",
TRUE
);
AddUnicodeString2 (
"en",
gPs2MouseComponentName2.SupportedLanguages,
&MouseDev->ControllerNameTable,
L"PS/2 Mouse Device",
FALSE
);
//
// Install protocol interfaces for the mouse device.
//
Status = gBS->InstallMultipleProtocolInterfaces (
&Controller,
&gEfiSimplePointerProtocolGuid,
&MouseDev->SimplePointerProtocol,
NULL
);
if (EFI_ERROR (Status)) {
goto ErrorExit;
}
gBS->RestoreTPL (OldTpl);
return Status;
ErrorExit:
if (Status != EFI_DEVICE_ERROR) {
KbcDisableAux ();
}
if (StatusCode != 0) {
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_ERROR_CODE | EFI_ERROR_MINOR,
StatusCode,
DevicePath
);
}
if ((MouseDev != NULL) && (MouseDev->SimplePointerProtocol.WaitForInput != NULL)) {
gBS->CloseEvent (MouseDev->SimplePointerProtocol.WaitForInput);
}
if ((MouseDev != NULL) && (MouseDev->TimerEvent != NULL)) {
gBS->CloseEvent (MouseDev->TimerEvent);
}
if ((MouseDev != NULL) && (MouseDev->ControllerNameTable != NULL)) {
FreeUnicodeStringTable (MouseDev->ControllerNameTable);
}
if (Status != EFI_DEVICE_ERROR) {
//
// 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 (&Data);
}
}
if (MouseDev != NULL) {
FreePool (MouseDev);
}
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
gBS->CloseProtocol (
Controller,
&gEfiSioProtocolGuid,
This->DriverBindingHandle,
Controller
);
gBS->RestoreTPL (OldTpl);
return Status;
}
/**
Stop this driver on ControllerHandle. Support stopping any child handles
created by this driver.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS
EFIAPI
PS2MouseDriverStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
{
EFI_STATUS Status;
EFI_SIMPLE_POINTER_PROTOCOL *SimplePointerProtocol;
PS2_MOUSE_DEV *MouseDev;
UINT8 Data;
Status = gBS->OpenProtocol (
Controller,
&gEfiSimplePointerProtocolGuid,
(VOID **) &SimplePointerProtocol,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return EFI_SUCCESS;
}
MouseDev = PS2_MOUSE_DEV_FROM_THIS (SimplePointerProtocol);
//
// Report that the keyboard is being disabled
//
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
EFI_PERIPHERAL_MOUSE | EFI_P_PC_DISABLE,
MouseDev->DevicePath
);
Status = gBS->UninstallProtocolInterface (
Controller,
&gEfiSimplePointerProtocolGuid,
&MouseDev->SimplePointerProtocol
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Cancel mouse data polling timer, close timer event
//
gBS->SetTimer (MouseDev->TimerEvent, TimerCancel, 0);
gBS->CloseEvent (MouseDev->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 (&Data);
}
gBS->CloseEvent (MouseDev->SimplePointerProtocol.WaitForInput);
FreeUnicodeStringTable (MouseDev->ControllerNameTable);
FreePool (MouseDev);
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
gBS->CloseProtocol (
Controller,
&gEfiSioProtocolGuid,
This->DriverBindingHandle,
Controller
);
return EFI_SUCCESS;
}
/**
Reset the Mouse and do BAT test for it, if ExtendedVerification is TRUE and
there is a mouse device connected to system.
@param This - Pointer of simple pointer Protocol.
@param ExtendedVerification - Whether configure mouse parameters. True: do; FALSE: skip.
@retval EFI_SUCCESS - The command byte is written successfully.
@retval EFI_DEVICE_ERROR - Errors occurred during resetting keyboard.
**/
EFI_STATUS
EFIAPI
MouseReset (
IN EFI_SIMPLE_POINTER_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
{
EFI_STATUS Status;
PS2_MOUSE_DEV *MouseDev;
EFI_TPL OldTpl;
BOOLEAN KeyboardEnable;
UINT8 Data;
MouseDev = PS2_MOUSE_DEV_FROM_THIS (This);
//
// Report reset progress code
//
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
EFI_PERIPHERAL_MOUSE | EFI_P_PC_RESET,
MouseDev->DevicePath
);
KeyboardEnable = FALSE;
//
// Raise TPL to avoid keyboard operation impact
//
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
ZeroMem (&MouseDev->State, sizeof (EFI_SIMPLE_POINTER_STATE));
MouseDev->StateChanged = FALSE;
//
// Exhaust input data
//
Status = EFI_SUCCESS;
while (!EFI_ERROR (Status)) {
Status = In8042Data (&Data);
}
CheckKbStatus (&KeyboardEnable);
KbcDisableKb ();
//
// if there's data block on KBC data port, read it out
//
if ((IoRead8 (KBC_CMD_STS_PORT) & KBC_OUTB) == KBC_OUTB) {
IoRead8 (KBC_DATA_PORT);
}
Status = EFI_SUCCESS;
//
// The PS2 mouse driver reset behavior is always successfully return no matter whether or not there is mouse connected to system.
// This behavior is needed by performance speed. The following mouse command only successfully 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 && CheckMouseConnect (MouseDev)) {
//
// Send mouse reset command and set mouse default configure
//
Status = PS2MouseReset ();
if (EFI_ERROR (Status)) {
Status = EFI_DEVICE_ERROR;
goto Exit;
}
Status = PS2MouseSetSampleRate (MouseDev->SampleRate);
if (EFI_ERROR (Status)) {
Status = EFI_DEVICE_ERROR;
goto Exit;
}
Status = PS2MouseSetResolution (MouseDev->Resolution);
if (EFI_ERROR (Status)) {
Status = EFI_DEVICE_ERROR;
goto Exit;
}
Status = PS2MouseSetScaling (MouseDev->Scaling);
if (EFI_ERROR (Status)) {
Status = EFI_DEVICE_ERROR;
goto Exit;
}
Status = PS2MouseEnable ();
if (EFI_ERROR (Status)) {
Status = EFI_DEVICE_ERROR;
goto Exit;
}
}
Exit:
gBS->RestoreTPL (OldTpl);
if (KeyboardEnable) {
KbcEnableKb ();
}
return Status;
}
/**
Check whether there is Ps/2 mouse device in system
@param MouseDev - Mouse Private Data Structure
@retval TRUE - Keyboard in System.
@retval FALSE - Keyboard not in System.
**/
BOOLEAN
CheckMouseConnect (
IN PS2_MOUSE_DEV *MouseDev
)
{
EFI_STATUS Status;
Status = PS2MouseEnable ();
if (!EFI_ERROR (Status)) {
return TRUE;
}
return FALSE;
}
/**
Get and Clear mouse status.
@param This - Pointer of simple pointer Protocol.
@param State - Output buffer holding status.
@retval EFI_INVALID_PARAMETER Output buffer is invalid.
@retval EFI_NOT_READY Mouse is not changed status yet.
@retval EFI_SUCCESS Mouse status is changed and get successful.
**/
EFI_STATUS
EFIAPI
MouseGetState (
IN EFI_SIMPLE_POINTER_PROTOCOL *This,
IN OUT EFI_SIMPLE_POINTER_STATE *State
)
{
PS2_MOUSE_DEV *MouseDev;
EFI_TPL OldTpl;
MouseDev = PS2_MOUSE_DEV_FROM_THIS (This);
if (State == NULL) {
return EFI_INVALID_PARAMETER;
}
if (!MouseDev->StateChanged) {
return EFI_NOT_READY;
}
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
CopyMem (State, &(MouseDev->State), sizeof (EFI_SIMPLE_POINTER_STATE));
//
// clear mouse state
//
MouseDev->State.RelativeMovementX = 0;
MouseDev->State.RelativeMovementY = 0;
MouseDev->State.RelativeMovementZ = 0;
MouseDev->StateChanged = FALSE;
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
}
/**
Event notification function for SIMPLE_POINTER.WaitForInput event.
Signal the event if there is input from mouse.
@param Event event object
@param Context event context
**/
VOID
EFIAPI
MouseWaitForInput (
IN EFI_EVENT Event,
IN VOID *Context
)
{
PS2_MOUSE_DEV *MouseDev;
MouseDev = (PS2_MOUSE_DEV *) Context;
//
// Someone is waiting on the mouse event, if there's
// input from mouse, signal the event
//
if (MouseDev->StateChanged) {
gBS->SignalEvent (Event);
}
}
/**
Event notification function for TimerEvent event.
If mouse device is connected to system, try to get the mouse packet data.
@param Event - TimerEvent in PS2_MOUSE_DEV
@param Context - Pointer to PS2_MOUSE_DEV structure
**/
VOID
EFIAPI
PollMouse (
IN EFI_EVENT Event,
IN VOID *Context
)
{
PS2_MOUSE_DEV *MouseDev;
MouseDev = (PS2_MOUSE_DEV *) Context;
//
// Polling mouse packet data
//
PS2MouseGetPacket (MouseDev);
}
/**
The user Entry Point for module Ps2Mouse. 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
InitializePs2Mouse(
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
//
// Install driver model protocol(s).
//
Status = EfiLibInstallDriverBindingComponentName2 (
ImageHandle,
SystemTable,
&gPS2MouseDriver,
ImageHandle,
&gPs2MouseComponentName,
&gPs2MouseComponentName2
);
ASSERT_EFI_ERROR (Status);
return Status;
}
Reference in New Issue View Git Blame Copy Permalink