+++ /dev/null
-/** @file\r
- Routines implements SIMPLE_TEXT_IN protocol's interfaces based on 8042 interfaces\r
- provided by Ps2KbdCtrller.c.\r
-\r
-Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
-SPDX-License-Identifier: BSD-2-Clause-Patent\r
-\r
-**/\r
-\r
-\r
-#include "Ps2Keyboard.h"\r
-\r
-/**\r
- Check whether the EFI key buffer is empty.\r
-\r
- @param Queue Pointer to instance of EFI_KEY_QUEUE.\r
-\r
- @retval TRUE The EFI key buffer is empty.\r
- @retval FALSE The EFI key buffer isn't empty.\r
-**/\r
-BOOLEAN\r
-IsEfikeyBufEmpty (\r
- IN EFI_KEY_QUEUE *Queue\r
- )\r
-{\r
- return (BOOLEAN) (Queue->Head == Queue->Tail);\r
-}\r
-\r
-/**\r
- Read & remove one key data from the EFI key buffer.\r
-\r
- @param Queue Pointer to instance of EFI_KEY_QUEUE.\r
- @param KeyData Receive the key data.\r
-\r
- @retval EFI_SUCCESS The key data is popped successfully.\r
- @retval EFI_NOT_READY There is no key data available.\r
-**/\r
-EFI_STATUS\r
-PopEfikeyBufHead (\r
- IN EFI_KEY_QUEUE *Queue,\r
- OUT EFI_KEY_DATA *KeyData OPTIONAL\r
- )\r
-{\r
- if (IsEfikeyBufEmpty (Queue)) {\r
- return EFI_NOT_READY;\r
- }\r
- //\r
- // Retrieve and remove the values\r
- //\r
- if (KeyData != NULL) {\r
- CopyMem (KeyData, &Queue->Buffer[Queue->Head], sizeof (EFI_KEY_DATA));\r
- }\r
- Queue->Head = (Queue->Head + 1) % KEYBOARD_EFI_KEY_MAX_COUNT;\r
- return EFI_SUCCESS;\r
-}\r
-\r
-/**\r
- Push one key data to the EFI key buffer.\r
-\r
- @param Queue Pointer to instance of EFI_KEY_QUEUE.\r
- @param KeyData The key data to push.\r
-**/\r
-VOID\r
-PushEfikeyBufTail (\r
- IN EFI_KEY_QUEUE *Queue,\r
- IN EFI_KEY_DATA *KeyData\r
- )\r
-{\r
- if ((Queue->Tail + 1) % KEYBOARD_EFI_KEY_MAX_COUNT == Queue->Head) {\r
- //\r
- // If Queue is full, pop the one from head.\r
- //\r
- PopEfikeyBufHead (Queue, NULL);\r
- }\r
- CopyMem (&Queue->Buffer[Queue->Tail], KeyData, sizeof (EFI_KEY_DATA));\r
- Queue->Tail = (Queue->Tail + 1) % KEYBOARD_EFI_KEY_MAX_COUNT;\r
-}\r
-\r
-/**\r
- Judge whether is a registed key\r
-\r
- @param RegsiteredData A pointer to a buffer that is filled in with the keystroke\r
- state data for the key that was registered.\r
- @param InputData A pointer to a buffer that is filled in with the keystroke\r
- state data for the key that was pressed.\r
-\r
- @retval TRUE Key be pressed matches a registered key.\r
- @retval FLASE Match failed.\r
-\r
-**/\r
-BOOLEAN\r
-IsKeyRegistered (\r
- IN EFI_KEY_DATA *RegsiteredData,\r
- IN EFI_KEY_DATA *InputData\r
- )\r
-\r
-{\r
- ASSERT (RegsiteredData != NULL && InputData != NULL);\r
-\r
- if ((RegsiteredData->Key.ScanCode != InputData->Key.ScanCode) ||\r
- (RegsiteredData->Key.UnicodeChar != InputData->Key.UnicodeChar)) {\r
- return FALSE;\r
- }\r
-\r
- //\r
- // Assume KeyShiftState/KeyToggleState = 0 in Registered key data means these state could be ignored.\r
- //\r
- if (RegsiteredData->KeyState.KeyShiftState != 0 &&\r
- RegsiteredData->KeyState.KeyShiftState != InputData->KeyState.KeyShiftState) {\r
- return FALSE;\r
- }\r
- if (RegsiteredData->KeyState.KeyToggleState != 0 &&\r
- RegsiteredData->KeyState.KeyToggleState != InputData->KeyState.KeyToggleState) {\r
- return FALSE;\r
- }\r
-\r
- return TRUE;\r
-\r
-}\r
-\r
-/**\r
- Reads the next keystroke from the input device. The WaitForKey Event can\r
- be used to test for existance of a keystroke via WaitForEvent () call.\r
-\r
- @param ConsoleInDev Ps2 Keyboard private structure\r
- @param KeyData A pointer to a buffer that is filled in with the keystroke\r
- state data for the key that was pressed.\r
-\r
-\r
- @retval EFI_SUCCESS The keystroke information was returned.\r
- @retval EFI_NOT_READY There was no keystroke data availiable.\r
- @retval EFI_DEVICE_ERROR The keystroke information was not returned due to\r
- hardware errors.\r
- @retval EFI_INVALID_PARAMETER KeyData is NULL.\r
-\r
-**/\r
-EFI_STATUS\r
-KeyboardReadKeyStrokeWorker (\r
- IN KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev,\r
- OUT EFI_KEY_DATA *KeyData\r
- )\r
-\r
-{\r
- EFI_STATUS Status;\r
- EFI_TPL OldTpl;\r
-\r
- if (KeyData == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- //\r
- // Enter critical section\r
- //\r
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r
-\r
- KeyboardTimerHandler (NULL, ConsoleInDev);\r
-\r
- if (ConsoleInDev->KeyboardErr) {\r
- Status = EFI_DEVICE_ERROR;\r
- } else {\r
- Status = PopEfikeyBufHead (&ConsoleInDev->EfiKeyQueue, KeyData);\r
- if (Status == EFI_NOT_READY) {\r
- ZeroMem (&KeyData->Key, sizeof (KeyData->Key));\r
- InitializeKeyState (ConsoleInDev, &KeyData->KeyState);\r
- }\r
- }\r
-\r
- gBS->RestoreTPL (OldTpl);\r
- return Status;\r
-}\r
-\r
-/**\r
- Perform 8042 controller and keyboard initialization which implement SIMPLE_TEXT_IN.Reset()\r
-\r
- @param This Pointer to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL\r
- @param ExtendedVerification Indicate that the driver may perform a more\r
- exhaustive verification operation of the device during\r
- reset, now this par is ignored in this driver\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-KeyboardEfiReset (\r
- IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r
- IN BOOLEAN ExtendedVerification\r
- )\r
-{\r
- EFI_STATUS Status;\r
- KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;\r
- EFI_TPL OldTpl;\r
-\r
- ConsoleIn = KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r
- if (ConsoleIn->KeyboardErr) {\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
- EFI_PROGRESS_CODE,\r
- EFI_PERIPHERAL_KEYBOARD | EFI_P_PC_RESET,\r
- ConsoleIn->DevicePath\r
- );\r
-\r
- //\r
- // Enter critical section\r
- //\r
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r
-\r
- //\r
- // Call InitKeyboard to initialize the keyboard\r
- //\r
- Status = InitKeyboard (ConsoleIn, ExtendedVerification);\r
- if (EFI_ERROR (Status)) {\r
- //\r
- // Leave critical section and return\r
- //\r
- gBS->RestoreTPL (OldTpl);\r
- return EFI_DEVICE_ERROR;\r
- }\r
-\r
- //\r
- // Leave critical section and return\r
- //\r
- gBS->RestoreTPL (OldTpl);\r
-\r
- //\r
- // Report the status If a stuck key was detected\r
- //\r
- if (KeyReadStatusRegister (ConsoleIn) & 0x01) {\r
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
- EFI_ERROR_CODE | EFI_ERROR_MINOR,\r
- EFI_PERIPHERAL_KEYBOARD | EFI_P_KEYBOARD_EC_STUCK_KEY,\r
- ConsoleIn->DevicePath\r
- );\r
- }\r
- //\r
- // Report the status If keyboard is locked\r
- //\r
- if ((KeyReadStatusRegister (ConsoleIn) & 0x10) == 0) {\r
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
- EFI_ERROR_CODE | EFI_ERROR_MINOR,\r
- EFI_PERIPHERAL_KEYBOARD | EFI_P_KEYBOARD_EC_LOCKED,\r
- ConsoleIn->DevicePath\r
- );\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-/**\r
- Retrieve key values for driver user which implement SIMPLE_TEXT_IN.ReadKeyStroke().\r
-\r
- @param This Pointer to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL\r
- @param Key The output buffer for key value\r
-\r
- @retval EFI_SUCCESS success to read key stroke\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-KeyboardReadKeyStroke (\r
- IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r
- OUT EFI_INPUT_KEY *Key\r
- )\r
-{\r
- EFI_STATUS Status;\r
- KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;\r
- EFI_KEY_DATA KeyData;\r
-\r
- ConsoleIn = KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r
-\r
- //\r
- // Considering if the partial keystroke is enabled, there maybe a partial\r
- // keystroke in the queue, so here skip the partial keystroke and get the\r
- // next key from the queue\r
- //\r
- while (1) {\r
- //\r
- // If there is no pending key, then return.\r
- //\r
- Status = KeyboardReadKeyStrokeWorker (ConsoleIn, &KeyData);\r
- if (EFI_ERROR (Status)) {\r
- return Status;\r
- }\r
- //\r
- // If it is partial keystroke, skip it.\r
- //\r
- if (KeyData.Key.ScanCode == SCAN_NULL && KeyData.Key.UnicodeChar == CHAR_NULL) {\r
- continue;\r
- }\r
- //\r
- // Translate the CTRL-Alpha characters to their corresponding control value\r
- // (ctrl-a = 0x0001 through ctrl-Z = 0x001A)\r
- //\r
- if ((KeyData.KeyState.KeyShiftState & (EFI_LEFT_CONTROL_PRESSED | EFI_RIGHT_CONTROL_PRESSED)) != 0) {\r
- if (KeyData.Key.UnicodeChar >= L'a' && KeyData.Key.UnicodeChar <= L'z') {\r
- KeyData.Key.UnicodeChar = (CHAR16) (KeyData.Key.UnicodeChar - L'a' + 1);\r
- } else if (KeyData.Key.UnicodeChar >= L'A' && KeyData.Key.UnicodeChar <= L'Z') {\r
- KeyData.Key.UnicodeChar = (CHAR16) (KeyData.Key.UnicodeChar - L'A' + 1);\r
- }\r
- }\r
-\r
- CopyMem (Key, &KeyData.Key, sizeof (EFI_INPUT_KEY));\r
- return EFI_SUCCESS;\r
- }\r
-}\r
-\r
-/**\r
- Event notification function for SIMPLE_TEXT_IN.WaitForKey event\r
- Signal the event if there is key available\r
-\r
- @param Event the event object\r
- @param Context waitting context\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-KeyboardWaitForKey (\r
- IN EFI_EVENT Event,\r
- IN VOID *Context\r
- )\r
-{\r
- EFI_TPL OldTpl;\r
- KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;\r
- EFI_KEY_DATA KeyData;\r
-\r
- ConsoleIn = (KEYBOARD_CONSOLE_IN_DEV *) Context;\r
-\r
- //\r
- // Enter critical section\r
- //\r
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r
-\r
- KeyboardTimerHandler (NULL, ConsoleIn);\r
-\r
- if (!ConsoleIn->KeyboardErr) {\r
- //\r
- // WaitforKey doesn't suppor the partial key.\r
- // Considering if the partial keystroke is enabled, there maybe a partial\r
- // keystroke in the queue, so here skip the partial keystroke and get the\r
- // next key from the queue\r
- //\r
- while (!IsEfikeyBufEmpty (&ConsoleIn->EfiKeyQueue)) {\r
- CopyMem (\r
- &KeyData,\r
- &(ConsoleIn->EfiKeyQueue.Buffer[ConsoleIn->EfiKeyQueue.Head]),\r
- sizeof (EFI_KEY_DATA)\r
- );\r
- if (KeyData.Key.ScanCode == SCAN_NULL && KeyData.Key.UnicodeChar == CHAR_NULL) {\r
- PopEfikeyBufHead (&ConsoleIn->EfiKeyQueue, &KeyData);\r
- continue;\r
- }\r
- //\r
- // if there is pending value key, signal the event.\r
- //\r
- gBS->SignalEvent (Event);\r
- break;\r
- }\r
- }\r
- //\r
- // Leave critical section and return\r
- //\r
- gBS->RestoreTPL (OldTpl);\r
-}\r
-\r
-/**\r
- Event notification function for SIMPLE_TEXT_INPUT_EX_PROTOCOL.WaitForKeyEx event\r
- Signal the event if there is key available\r
-\r
- @param Event event object\r
- @param Context waiting context\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-KeyboardWaitForKeyEx (\r
- IN EFI_EVENT Event,\r
- IN VOID *Context\r
- )\r
-\r
-{\r
- KeyboardWaitForKey (Event, Context);\r
-}\r
-\r
-/**\r
- Reset the input device and optionaly run diagnostics\r
-\r
- @param This Protocol instance pointer.\r
- @param ExtendedVerification Driver may perform diagnostics on reset.\r
-\r
- @retval EFI_SUCCESS The device was reset.\r
- @retval EFI_DEVICE_ERROR The device is not functioning properly and could\r
- not be reset.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-KeyboardEfiResetEx (\r
- IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
- IN BOOLEAN ExtendedVerification\r
- )\r
-\r
-{\r
- KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;\r
-\r
- ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r
-\r
- return ConsoleInDev->ConIn.Reset (\r
- &ConsoleInDev->ConIn,\r
- ExtendedVerification\r
- );\r
-}\r
-\r
-/**\r
- Reads the next keystroke from the input device. The WaitForKey Event can\r
- be used to test for existance of a keystroke via WaitForEvent () call.\r
-\r
-\r
- @param This Protocol instance pointer.\r
- @param KeyData A pointer to a buffer that is filled in with the keystroke\r
- state data for the key that was pressed.\r
-\r
- @retval EFI_SUCCESS The keystroke information was returned.\r
- @retval EFI_NOT_READY There was no keystroke data availiable.\r
- @retval EFI_DEVICE_ERROR The keystroke information was not returned due to\r
- hardware errors.\r
- @retval EFI_INVALID_PARAMETER KeyData is NULL.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-KeyboardReadKeyStrokeEx (\r
- IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
- OUT EFI_KEY_DATA *KeyData\r
- )\r
-\r
-{\r
- KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;\r
-\r
- if (KeyData == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r
- return KeyboardReadKeyStrokeWorker (ConsoleInDev, KeyData);\r
-}\r
-\r
-/**\r
- Set certain state for the input device.\r
-\r
- @param This Protocol instance pointer.\r
- @param KeyToggleState A pointer to the EFI_KEY_TOGGLE_STATE to set the\r
- state for the input device.\r
-\r
- @retval EFI_SUCCESS The device state was set successfully.\r
- @retval EFI_DEVICE_ERROR The device is not functioning correctly and could\r
- not have the setting adjusted.\r
- @retval EFI_UNSUPPORTED The device does not have the ability to set its state.\r
- @retval EFI_INVALID_PARAMETER KeyToggleState is NULL.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-KeyboardSetState (\r
- IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
- IN EFI_KEY_TOGGLE_STATE *KeyToggleState\r
- )\r
-\r
-{\r
- EFI_STATUS Status;\r
- KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;\r
- EFI_TPL OldTpl;\r
-\r
- if (KeyToggleState == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r
-\r
- //\r
- // Enter critical section\r
- //\r
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r
-\r
- if (ConsoleInDev->KeyboardErr) {\r
- Status = EFI_DEVICE_ERROR;\r
- goto Exit;\r
- }\r
-\r
- if ((*KeyToggleState & EFI_TOGGLE_STATE_VALID) != EFI_TOGGLE_STATE_VALID) {\r
- Status = EFI_UNSUPPORTED;\r
- goto Exit;\r
- }\r
-\r
- //\r
- // Update the status light\r
- //\r
- ConsoleInDev->ScrollLock = FALSE;\r
- ConsoleInDev->NumLock = FALSE;\r
- ConsoleInDev->CapsLock = FALSE;\r
- ConsoleInDev->IsSupportPartialKey = FALSE;\r
-\r
- if ((*KeyToggleState & EFI_SCROLL_LOCK_ACTIVE) == EFI_SCROLL_LOCK_ACTIVE) {\r
- ConsoleInDev->ScrollLock = TRUE;\r
- }\r
- if ((*KeyToggleState & EFI_NUM_LOCK_ACTIVE) == EFI_NUM_LOCK_ACTIVE) {\r
- ConsoleInDev->NumLock = TRUE;\r
- }\r
- if ((*KeyToggleState & EFI_CAPS_LOCK_ACTIVE) == EFI_CAPS_LOCK_ACTIVE) {\r
- ConsoleInDev->CapsLock = TRUE;\r
- }\r
- if ((*KeyToggleState & EFI_KEY_STATE_EXPOSED) == EFI_KEY_STATE_EXPOSED) {\r
- ConsoleInDev->IsSupportPartialKey = TRUE;\r
- }\r
-\r
- Status = UpdateStatusLights (ConsoleInDev);\r
- if (EFI_ERROR (Status)) {\r
- Status = EFI_DEVICE_ERROR;\r
- }\r
-\r
-Exit:\r
- //\r
- // Leave critical section and return\r
- //\r
- gBS->RestoreTPL (OldTpl);\r
-\r
- return Status;\r
-\r
-}\r
-\r
-/**\r
- Register a notification function for a particular keystroke for the input device.\r
-\r
- @param This Protocol instance pointer.\r
- @param KeyData A pointer to a buffer that is filled in with the keystroke\r
- information data for the key that was pressed. If KeyData.Key,\r
- KeyData.KeyState.KeyToggleState and KeyData.KeyState.KeyShiftState\r
- are 0, then any incomplete keystroke will trigger a notification of\r
- the KeyNotificationFunction.\r
- @param KeyNotificationFunction Points to the function to be called when the key\r
- sequence is typed specified by KeyData. This notification function\r
- should be called at <=TPL_CALLBACK.\r
- @param NotifyHandle Points to the unique handle assigned to the registered notification.\r
-\r
- @retval EFI_SUCCESS The notification function was registered successfully.\r
- @retval EFI_OUT_OF_RESOURCES Unable to allocate resources for necesssary data structures.\r
- @retval EFI_INVALID_PARAMETER KeyData or NotifyHandle or KeyNotificationFunction is NULL.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-KeyboardRegisterKeyNotify (\r
- IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
- IN EFI_KEY_DATA *KeyData,\r
- IN EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction,\r
- OUT VOID **NotifyHandle\r
- )\r
-{\r
- EFI_STATUS Status;\r
- KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;\r
- EFI_TPL OldTpl;\r
- LIST_ENTRY *Link;\r
- KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;\r
- KEYBOARD_CONSOLE_IN_EX_NOTIFY *NewNotify;\r
-\r
- if (KeyData == NULL || NotifyHandle == NULL || KeyNotificationFunction == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r
-\r
- //\r
- // Enter critical section\r
- //\r
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r
-\r
- //\r
- // Return EFI_SUCCESS if the (KeyData, NotificationFunction) is already registered.\r
- //\r
- for (Link = ConsoleInDev->NotifyList.ForwardLink; Link != &ConsoleInDev->NotifyList; Link = Link->ForwardLink) {\r
- CurrentNotify = CR (\r
- Link,\r
- KEYBOARD_CONSOLE_IN_EX_NOTIFY,\r
- NotifyEntry,\r
- KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE\r
- );\r
- if (IsKeyRegistered (&CurrentNotify->KeyData, KeyData)) {\r
- if (CurrentNotify->KeyNotificationFn == KeyNotificationFunction) {\r
- *NotifyHandle = CurrentNotify;\r
- Status = EFI_SUCCESS;\r
- goto Exit;\r
- }\r
- }\r
- }\r
-\r
- //\r
- // Allocate resource to save the notification function\r
- //\r
- NewNotify = (KEYBOARD_CONSOLE_IN_EX_NOTIFY *) AllocateZeroPool (sizeof (KEYBOARD_CONSOLE_IN_EX_NOTIFY));\r
- if (NewNotify == NULL) {\r
- Status = EFI_OUT_OF_RESOURCES;\r
- goto Exit;\r
- }\r
-\r
- NewNotify->Signature = KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE;\r
- NewNotify->KeyNotificationFn = KeyNotificationFunction;\r
- CopyMem (&NewNotify->KeyData, KeyData, sizeof (EFI_KEY_DATA));\r
- InsertTailList (&ConsoleInDev->NotifyList, &NewNotify->NotifyEntry);\r
-\r
- *NotifyHandle = NewNotify;\r
- Status = EFI_SUCCESS;\r
-\r
-Exit:\r
- //\r
- // Leave critical section and return\r
- //\r
- gBS->RestoreTPL (OldTpl);\r
- return Status;\r
-\r
-}\r
-\r
-/**\r
- Remove a registered notification function from a particular keystroke.\r
-\r
- @param This Protocol instance pointer.\r
- @param NotificationHandle The handle of the notification function being unregistered.\r
-\r
-\r
- @retval EFI_SUCCESS The notification function was unregistered successfully.\r
- @retval EFI_INVALID_PARAMETER The NotificationHandle is invalid.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-KeyboardUnregisterKeyNotify (\r
- IN EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This,\r
- IN VOID *NotificationHandle\r
- )\r
-{\r
- EFI_STATUS Status;\r
- KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;\r
- EFI_TPL OldTpl;\r
- LIST_ENTRY *Link;\r
- KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;\r
-\r
- if (NotificationHandle == NULL) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r
-\r
- //\r
- // Enter critical section\r
- //\r
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r
-\r
- for (Link = ConsoleInDev->NotifyList.ForwardLink; Link != &ConsoleInDev->NotifyList; Link = Link->ForwardLink) {\r
- CurrentNotify = CR (\r
- Link,\r
- KEYBOARD_CONSOLE_IN_EX_NOTIFY,\r
- NotifyEntry,\r
- KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE\r
- );\r
- if (CurrentNotify == NotificationHandle) {\r
- //\r
- // Remove the notification function from NotifyList and free resources\r
- //\r
- RemoveEntryList (&CurrentNotify->NotifyEntry);\r
-\r
- gBS->FreePool (CurrentNotify);\r
- Status = EFI_SUCCESS;\r
- goto Exit;\r
- }\r
- }\r
-\r
- //\r
- // Can not find the specified Notification Handle\r
- //\r
- Status = EFI_INVALID_PARAMETER;\r
-Exit:\r
- //\r
- // Leave critical section and return\r
- //\r
- gBS->RestoreTPL (OldTpl);\r
- return Status;\r
-}\r
-\r
-/**\r
- Process key notify.\r
-\r
- @param Event Indicates the event that invoke this function.\r
- @param Context Indicates the calling context.\r
-**/\r
-VOID\r
-EFIAPI\r
-KeyNotifyProcessHandler (\r
- IN EFI_EVENT Event,\r
- IN VOID *Context\r
- )\r
-{\r
- EFI_STATUS Status;\r
- KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;\r
- EFI_KEY_DATA KeyData;\r
- LIST_ENTRY *Link;\r
- LIST_ENTRY *NotifyList;\r
- KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;\r
- EFI_TPL OldTpl;\r
-\r
- ConsoleIn = (KEYBOARD_CONSOLE_IN_DEV *) Context;\r
-\r
- //\r
- // Invoke notification functions.\r
- //\r
- NotifyList = &ConsoleIn->NotifyList;\r
- while (TRUE) {\r
- //\r
- // Enter critical section\r
- //\r
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r
- Status = PopEfikeyBufHead (&ConsoleIn->EfiKeyQueueForNotify, &KeyData);\r
- //\r
- // Leave critical section\r
- //\r
- gBS->RestoreTPL (OldTpl);\r
- if (EFI_ERROR (Status)) {\r
- break;\r
- }\r
- for (Link = GetFirstNode (NotifyList); !IsNull (NotifyList, Link); Link = GetNextNode (NotifyList, Link)) {\r
- CurrentNotify = CR (Link, KEYBOARD_CONSOLE_IN_EX_NOTIFY, NotifyEntry, KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE);\r
- if (IsKeyRegistered (&CurrentNotify->KeyData, &KeyData)) {\r
- CurrentNotify->KeyNotificationFn (&KeyData);\r
- }\r
- }\r
- }\r
-}\r
-\r
projects / mirror_edk2.git / blobdiff