diff options
Diffstat (limited to 'IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c')
| -rw-r--r-- | IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c | 732 |
1 files changed, 0 insertions, 732 deletions
diff --git a/IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c b/IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c deleted file mode 100644 index 5825a04c3e..0000000000 --- a/IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c +++ /dev/null @@ -1,732 +0,0 @@ -/** @file
- Routines implements SIMPLE_TEXT_IN protocol's interfaces based on 8042 interfaces
- provided by Ps2KbdCtrller.c.
-
-Copyright (c) 2006 - 2016, Intel Corporation. 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 "Ps2Keyboard.h"
-
-/**
- Check whether the EFI key buffer is empty.
-
- @param Queue Pointer to instance of EFI_KEY_QUEUE.
-
- @retval TRUE The EFI key buffer is empty.
- @retval FALSE The EFI key buffer isn't empty.
-**/
-BOOLEAN
-IsEfikeyBufEmpty (
- IN EFI_KEY_QUEUE *Queue
- )
-{
- return (BOOLEAN) (Queue->Head == Queue->Tail);
-}
-
-/**
- Read & remove one key data from the EFI key buffer.
-
- @param Queue Pointer to instance of EFI_KEY_QUEUE.
- @param KeyData Receive the key data.
-
- @retval EFI_SUCCESS The key data is popped successfully.
- @retval EFI_NOT_READY There is no key data available.
-**/
-EFI_STATUS
-PopEfikeyBufHead (
- IN EFI_KEY_QUEUE *Queue,
- OUT EFI_KEY_DATA *KeyData OPTIONAL
- )
-{
- if (IsEfikeyBufEmpty (Queue)) {
- return EFI_NOT_READY;
- }
- //
- // Retrieve and remove the values
- //
- if (KeyData != NULL) {
- CopyMem (KeyData, &Queue->Buffer[Queue->Head], sizeof (EFI_KEY_DATA));
- }
- Queue->Head = (Queue->Head + 1) % KEYBOARD_EFI_KEY_MAX_COUNT;
- return EFI_SUCCESS;
-}
-
-/**
- Push one key data to the EFI key buffer.
-
- @param Queue Pointer to instance of EFI_KEY_QUEUE.
- @param KeyData The key data to push.
-**/
-VOID
-PushEfikeyBufTail (
- IN EFI_KEY_QUEUE *Queue,
- IN EFI_KEY_DATA *KeyData
- )
-{
- if ((Queue->Tail + 1) % KEYBOARD_EFI_KEY_MAX_COUNT == Queue->Head) {
- //
- // If Queue is full, pop the one from head.
- //
- PopEfikeyBufHead (Queue, NULL);
- }
- CopyMem (&Queue->Buffer[Queue->Tail], KeyData, sizeof (EFI_KEY_DATA));
- Queue->Tail = (Queue->Tail + 1) % KEYBOARD_EFI_KEY_MAX_COUNT;
-}
-
-/**
- Judge whether is a registed key
-
- @param RegsiteredData A pointer to a buffer that is filled in with the keystroke
- state data for the key that was registered.
- @param InputData A pointer to a buffer that is filled in with the keystroke
- state data for the key that was pressed.
-
- @retval TRUE Key be pressed matches a registered key.
- @retval FLASE Match failed.
-
-**/
-BOOLEAN
-IsKeyRegistered (
- IN EFI_KEY_DATA *RegsiteredData,
- IN EFI_KEY_DATA *InputData
- )
-
-{
- 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;
-
-}
-
-/**
- Reads the next keystroke from the input device. The WaitForKey Event can
- be used to test for existance of a keystroke via WaitForEvent () call.
-
- @param ConsoleInDev Ps2 Keyboard private structure
- @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 availiable.
- @retval EFI_DEVICE_ERROR The keystroke information was not returned due to
- hardware errors.
- @retval EFI_INVALID_PARAMETER KeyData is NULL.
-
-**/
-EFI_STATUS
-KeyboardReadKeyStrokeWorker (
- IN KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev,
- OUT EFI_KEY_DATA *KeyData
- )
-
-{
- EFI_STATUS Status;
- EFI_TPL OldTpl;
-
- if (KeyData == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Enter critical section
- //
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- KeyboardTimerHandler (NULL, ConsoleInDev);
-
- if (ConsoleInDev->KeyboardErr) {
- Status = EFI_DEVICE_ERROR;
- } else {
- Status = PopEfikeyBufHead (&ConsoleInDev->EfiKeyQueue, KeyData);
- }
-
- gBS->RestoreTPL (OldTpl);
- return Status;
-}
-
-/**
- Perform 8042 controller and keyboard initialization which implement SIMPLE_TEXT_IN.Reset()
-
- @param This Pointer to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL
- @param ExtendedVerification Indicate that the driver may perform a more
- exhaustive verification operation of the device during
- reset, now this par is ignored in this driver
-
-**/
-EFI_STATUS
-EFIAPI
-KeyboardEfiReset (
- IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
- IN BOOLEAN ExtendedVerification
- )
-{
- EFI_STATUS Status;
- KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;
- EFI_TPL OldTpl;
-
- ConsoleIn = KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);
- if (ConsoleIn->KeyboardErr) {
- return EFI_DEVICE_ERROR;
- }
-
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (
- EFI_PROGRESS_CODE,
- EFI_PERIPHERAL_KEYBOARD | EFI_P_PC_RESET,
- ConsoleIn->DevicePath
- );
-
- //
- // Enter critical section
- //
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- //
- // Call InitKeyboard to initialize the keyboard
- //
- Status = InitKeyboard (ConsoleIn, ExtendedVerification);
- if (EFI_ERROR (Status)) {
- //
- // Leave critical section and return
- //
- gBS->RestoreTPL (OldTpl);
- return EFI_DEVICE_ERROR;
- }
-
- //
- // Leave critical section and return
- //
- gBS->RestoreTPL (OldTpl);
-
- //
- // Report the status If a stuck key was detected
- //
- if (KeyReadStatusRegister (ConsoleIn) & 0x01) {
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (
- EFI_ERROR_CODE | EFI_ERROR_MINOR,
- EFI_PERIPHERAL_KEYBOARD | EFI_P_KEYBOARD_EC_STUCK_KEY,
- ConsoleIn->DevicePath
- );
- }
- //
- // Report the status If keyboard is locked
- //
- if ((KeyReadStatusRegister (ConsoleIn) & 0x10) == 0) {
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (
- EFI_ERROR_CODE | EFI_ERROR_MINOR,
- EFI_PERIPHERAL_KEYBOARD | EFI_P_KEYBOARD_EC_LOCKED,
- ConsoleIn->DevicePath
- );
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Retrieve key values for driver user which implement SIMPLE_TEXT_IN.ReadKeyStroke().
-
- @param This Pointer to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL
- @param Key The output buffer for key value
-
- @retval EFI_SUCCESS success to read key stroke
-**/
-EFI_STATUS
-EFIAPI
-KeyboardReadKeyStroke (
- IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,
- OUT EFI_INPUT_KEY *Key
- )
-{
- EFI_STATUS Status;
- KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;
- EFI_KEY_DATA KeyData;
-
- ConsoleIn = KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);
-
- //
- // Considering if the partial keystroke is enabled, there maybe a partial
- // keystroke in the queue, so here skip the partial keystroke and get the
- // next key from the queue
- //
- while (1) {
- //
- // If there is no pending key, then return.
- //
- Status = KeyboardReadKeyStrokeWorker (ConsoleIn, &KeyData);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- //
- // If it is partial keystroke, skip it.
- //
- if (KeyData.Key.ScanCode == SCAN_NULL && KeyData.Key.UnicodeChar == CHAR_NULL) {
- continue;
- }
- //
- // Translate the CTRL-Alpha characters to their corresponding control value
- // (ctrl-a = 0x0001 through ctrl-Z = 0x001A)
- //
- if ((KeyData.KeyState.KeyShiftState & (EFI_LEFT_CONTROL_PRESSED | EFI_RIGHT_CONTROL_PRESSED)) != 0) {
- if (KeyData.Key.UnicodeChar >= L'a' && KeyData.Key.UnicodeChar <= L'z') {
- KeyData.Key.UnicodeChar = (CHAR16) (KeyData.Key.UnicodeChar - L'a' + 1);
- } else if (KeyData.Key.UnicodeChar >= L'A' && KeyData.Key.UnicodeChar <= L'Z') {
- KeyData.Key.UnicodeChar = (CHAR16) (KeyData.Key.UnicodeChar - L'A' + 1);
- }
- }
-
- CopyMem (Key, &KeyData.Key, sizeof (EFI_INPUT_KEY));
- return EFI_SUCCESS;
- }
-}
-
-/**
- Event notification function for SIMPLE_TEXT_IN.WaitForKey event
- Signal the event if there is key available
-
- @param Event the event object
- @param Context waitting context
-
-**/
-VOID
-EFIAPI
-KeyboardWaitForKey (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-{
- EFI_TPL OldTpl;
- KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;
- EFI_KEY_DATA KeyData;
-
- ConsoleIn = (KEYBOARD_CONSOLE_IN_DEV *) Context;
-
- //
- // Enter critical section
- //
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- KeyboardTimerHandler (NULL, ConsoleIn);
-
- if (!ConsoleIn->KeyboardErr) {
- //
- // WaitforKey doesn't suppor the partial key.
- // Considering if the partial keystroke is enabled, there maybe a partial
- // keystroke in the queue, so here skip the partial keystroke and get the
- // next key from the queue
- //
- while (!IsEfikeyBufEmpty (&ConsoleIn->EfiKeyQueue)) {
- CopyMem (
- &KeyData,
- &(ConsoleIn->EfiKeyQueue.Buffer[ConsoleIn->EfiKeyQueue.Head]),
- sizeof (EFI_KEY_DATA)
- );
- if (KeyData.Key.ScanCode == SCAN_NULL && KeyData.Key.UnicodeChar == CHAR_NULL) {
- PopEfikeyBufHead (&ConsoleIn->EfiKeyQueue, &KeyData);
- continue;
- }
- //
- // if there is pending value key, signal the event.
- //
- gBS->SignalEvent (Event);
- break;
- }
- }
- //
- // Leave critical section and return
- //
- gBS->RestoreTPL (OldTpl);
-}
-
-/**
- Event notification function for SIMPLE_TEXT_INPUT_EX_PROTOCOL.WaitForKeyEx event
- Signal the event if there is key available
-
- @param Event event object
- @param Context waiting context
-
-**/
-VOID
-EFIAPI
-KeyboardWaitForKeyEx (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-
-{
- KeyboardWaitForKey (Event, Context);
-}
-
-/**
- Reset the input device and optionaly 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
-KeyboardEfiResetEx (
- IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
- IN BOOLEAN ExtendedVerification
- )
-
-{
- KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;
-
- ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);
-
- return ConsoleInDev->ConIn.Reset (
- &ConsoleInDev->ConIn,
- ExtendedVerification
- );
-}
-
-/**
- Reads the next keystroke from the input device. The WaitForKey Event can
- be used to test for existance of a keystroke via WaitForEvent () call.
-
-
- @param This Protocol instance pointer.
- @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 availiable.
- @retval EFI_DEVICE_ERROR The keystroke information was not returned due to
- hardware errors.
- @retval EFI_INVALID_PARAMETER KeyData is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-KeyboardReadKeyStrokeEx (
- IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
- OUT EFI_KEY_DATA *KeyData
- )
-
-{
- KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;
-
- if (KeyData == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);
- return KeyboardReadKeyStrokeWorker (ConsoleInDev, KeyData);
-}
-
-/**
- Set certain state for the input device.
-
- @param This Protocol instance pointer.
- @param KeyToggleState A pointer to the EFI_KEY_TOGGLE_STATE to set the
- state for the input device.
-
- @retval EFI_SUCCESS The device state was set successfully.
- @retval EFI_DEVICE_ERROR The device is not functioning correctly and could
- not have the setting adjusted.
- @retval EFI_UNSUPPORTED The device does not have the ability to set its state.
- @retval EFI_INVALID_PARAMETER KeyToggleState is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-KeyboardSetState (
- IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
- IN EFI_KEY_TOGGLE_STATE *KeyToggleState
- )
-
-{
- EFI_STATUS Status;
- KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;
- EFI_TPL OldTpl;
-
- if (KeyToggleState == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);
-
- //
- // Enter critical section
- //
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- if (ConsoleInDev->KeyboardErr) {
- Status = EFI_DEVICE_ERROR;
- goto Exit;
- }
-
- if ((*KeyToggleState & EFI_TOGGLE_STATE_VALID) != EFI_TOGGLE_STATE_VALID) {
- Status = EFI_UNSUPPORTED;
- goto Exit;
- }
-
- //
- // Update the status light
- //
- ConsoleInDev->ScrollLock = FALSE;
- ConsoleInDev->NumLock = FALSE;
- ConsoleInDev->CapsLock = FALSE;
- ConsoleInDev->IsSupportPartialKey = FALSE;
-
- if ((*KeyToggleState & EFI_SCROLL_LOCK_ACTIVE) == EFI_SCROLL_LOCK_ACTIVE) {
- ConsoleInDev->ScrollLock = TRUE;
- }
- if ((*KeyToggleState & EFI_NUM_LOCK_ACTIVE) == EFI_NUM_LOCK_ACTIVE) {
- ConsoleInDev->NumLock = TRUE;
- }
- if ((*KeyToggleState & EFI_CAPS_LOCK_ACTIVE) == EFI_CAPS_LOCK_ACTIVE) {
- ConsoleInDev->CapsLock = TRUE;
- }
- if ((*KeyToggleState & EFI_KEY_STATE_EXPOSED) == EFI_KEY_STATE_EXPOSED) {
- ConsoleInDev->IsSupportPartialKey = TRUE;
- }
-
- Status = UpdateStatusLights (ConsoleInDev);
- if (EFI_ERROR (Status)) {
- Status = EFI_DEVICE_ERROR;
- }
-
-Exit:
- //
- // Leave critical section and return
- //
- gBS->RestoreTPL (OldTpl);
-
- return Status;
-
-}
-
-/**
- Register a notification function for a particular keystroke for the input device.
-
- @param This Protocol instance pointer.
- @param KeyData A pointer to a buffer that is filled in with the keystroke
- information data 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 notification function was registered successfully.
- @retval EFI_OUT_OF_RESOURCES Unable to allocate resources for necesssary data structures.
- @retval EFI_INVALID_PARAMETER KeyData or NotifyHandle or KeyNotificationFunction is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-KeyboardRegisterKeyNotify (
- 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;
- KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;
- EFI_TPL OldTpl;
- LIST_ENTRY *Link;
- KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;
- KEYBOARD_CONSOLE_IN_EX_NOTIFY *NewNotify;
-
- if (KeyData == NULL || NotifyHandle == NULL || KeyNotificationFunction == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);
-
- //
- // Enter critical section
- //
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- //
- // Return EFI_SUCCESS if the (KeyData, NotificationFunction) is already registered.
- //
- for (Link = ConsoleInDev->NotifyList.ForwardLink; Link != &ConsoleInDev->NotifyList; Link = Link->ForwardLink) {
- CurrentNotify = CR (
- Link,
- KEYBOARD_CONSOLE_IN_EX_NOTIFY,
- NotifyEntry,
- KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE
- );
- if (IsKeyRegistered (&CurrentNotify->KeyData, KeyData)) {
- if (CurrentNotify->KeyNotificationFn == KeyNotificationFunction) {
- *NotifyHandle = CurrentNotify;
- Status = EFI_SUCCESS;
- goto Exit;
- }
- }
- }
-
- //
- // Allocate resource to save the notification function
- //
- NewNotify = (KEYBOARD_CONSOLE_IN_EX_NOTIFY *) AllocateZeroPool (sizeof (KEYBOARD_CONSOLE_IN_EX_NOTIFY));
- if (NewNotify == NULL) {
- Status = EFI_OUT_OF_RESOURCES;
- goto Exit;
- }
-
- NewNotify->Signature = KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE;
- NewNotify->KeyNotificationFn = KeyNotificationFunction;
- CopyMem (&NewNotify->KeyData, KeyData, sizeof (EFI_KEY_DATA));
- InsertTailList (&ConsoleInDev->NotifyList, &NewNotify->NotifyEntry);
-
- *NotifyHandle = NewNotify;
- Status = EFI_SUCCESS;
-
-Exit:
- //
- // Leave critical section and return
- //
- gBS->RestoreTPL (OldTpl);
- return Status;
-
-}
-
-/**
- Remove a registered notification function from a particular keystroke.
-
- @param This Protocol instance pointer.
- @param NotificationHandle The handle of the notification function being unregistered.
-
-
- @retval EFI_SUCCESS The notification function was unregistered successfully.
- @retval EFI_INVALID_PARAMETER The NotificationHandle is invalid.
-
-**/
-EFI_STATUS
-EFIAPI
-KeyboardUnregisterKeyNotify (
- IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,
- IN VOID *NotificationHandle
- )
-{
- EFI_STATUS Status;
- KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;
- EFI_TPL OldTpl;
- LIST_ENTRY *Link;
- KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;
-
- if (NotificationHandle == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);
-
- //
- // Enter critical section
- //
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
-
- for (Link = ConsoleInDev->NotifyList.ForwardLink; Link != &ConsoleInDev->NotifyList; Link = Link->ForwardLink) {
- CurrentNotify = CR (
- Link,
- KEYBOARD_CONSOLE_IN_EX_NOTIFY,
- NotifyEntry,
- KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE
- );
- if (CurrentNotify == NotificationHandle) {
- //
- // Remove the notification function from NotifyList and free resources
- //
- RemoveEntryList (&CurrentNotify->NotifyEntry);
-
- gBS->FreePool (CurrentNotify);
- Status = EFI_SUCCESS;
- goto Exit;
- }
- }
-
- //
- // Can not find the specified Notification Handle
- //
- Status = EFI_INVALID_PARAMETER;
-Exit:
- //
- // Leave critical section and return
- //
- gBS->RestoreTPL (OldTpl);
- return Status;
-}
-
-/**
- Process key notify.
-
- @param Event Indicates the event that invoke this function.
- @param Context Indicates the calling context.
-**/
-VOID
-EFIAPI
-KeyNotifyProcessHandler (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-{
- EFI_STATUS Status;
- KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;
- EFI_KEY_DATA KeyData;
- LIST_ENTRY *Link;
- LIST_ENTRY *NotifyList;
- KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;
- EFI_TPL OldTpl;
-
- ConsoleIn = (KEYBOARD_CONSOLE_IN_DEV *) Context;
-
- //
- // Invoke notification functions.
- //
- NotifyList = &ConsoleIn->NotifyList;
- while (TRUE) {
- //
- // Enter critical section
- //
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
- Status = PopEfikeyBufHead (&ConsoleIn->EfiKeyQueueForNotify, &KeyData);
- //
- // Leave critical section
- //
- gBS->RestoreTPL (OldTpl);
- if (EFI_ERROR (Status)) {
- break;
- }
- for (Link = GetFirstNode (NotifyList); !IsNull (NotifyList, Link); Link = GetNextNode (NotifyList, Link)) {
- CurrentNotify = CR (Link, KEYBOARD_CONSOLE_IN_EX_NOTIFY, NotifyEntry, KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE);
- if (IsKeyRegistered (&CurrentNotify->KeyData, &KeyData)) {
- CurrentNotify->KeyNotificationFn (&KeyData);
- }
- }
- }
-}
-
|