-/*++\r
+/** @file\r
+ Routines implements SIMPLE_TEXT_IN protocol's interfaces based on 8042 interfaces\r
+ provided by Ps2KbdCtrller.c.\r
\r
-Copyright (c) 2006 - 2007, Intel Corporation\r
-All rights reserved. This program and the accompanying materials\r
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
-Module Name:\r
+**/\r
\r
- Ps2KbdTextIn.c\r
\r
-Abstract:\r
+#include "Ps2Keyboard.h"\r
\r
- PS/2 Keyboard driver\r
- Routines that support SIMPLE_TEXT_IN protocol\r
+/**\r
+ Check whether the EFI key buffer is empty.\r
\r
-Revision History\r
+ @param Queue Pointer to instance of EFI_KEY_QUEUE.\r
\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
-// Include common header file for this module.\r
-//\r
-#include "CommonHeader.h"\r
+/**\r
+ Read & remove one key data from the EFI key buffer.\r
\r
-#include "Ps2Keyboard.h"\r
+ @param Queue Pointer to instance of EFI_KEY_QUEUE.\r
+ @param KeyData Receive the key data.\r
\r
-//\r
-// function declarations\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
-EFIAPI\r
-KeyboardEfiReset (\r
- IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r
- IN BOOLEAN ExtendedVerification\r
- );\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
-EFI_STATUS\r
-EFIAPI\r
-KeyboardReadKeyStroke (\r
- IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r
- OUT EFI_INPUT_KEY *Key\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
-EFIAPI\r
-KeyboardWaitForKey (\r
- IN EFI_EVENT Event,\r
- IN VOID *Context\r
- );\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
-EFI_STATUS\r
-KeyboardCheckForKey (\r
- IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This\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
-EFIAPI\r
-KeyboardEfiReset (\r
- IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r
- IN BOOLEAN ExtendedVerification\r
+KeyboardReadKeyStrokeWorker (\r
+ IN KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev,\r
+ OUT EFI_KEY_DATA *KeyData\r
)\r
-/*++\r
\r
-Routine Description:\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_TPL OldTpl;\r
\r
- Implement SIMPLE_TEXT_IN.Reset()\r
- Perform 8042 controller and keyboard initialization\r
+ if (KeyData == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
\r
-Arguments:\r
+ //\r
+ // Enter critical section\r
+ //\r
+ OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r
+\r
+ KeyboardTimerHandler (NULL, ConsoleInDev);\r
\r
-Returns:\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
-// GC_TODO: This - add argument and description to function comment\r
-// GC_TODO: ExtendedVerification - add argument and description to function comment\r
-// GC_TODO: EFI_DEVICE_ERROR - add return value to function comment\r
-// GC_TODO: EFI_DEVICE_ERROR - add return value to function comment\r
-// GC_TODO: EFI_SUCCESS - add return value to function comment\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
gBS->RestoreTPL (OldTpl);\r
return EFI_DEVICE_ERROR;\r
}\r
- //\r
- // Clear the status of ConsoleIn.Key\r
- //\r
- ConsoleIn->Key.ScanCode = SCAN_NULL;\r
- ConsoleIn->Key.UnicodeChar = 0x0000;\r
\r
//\r
// Leave critical section and return\r
//\r
// Report the status If keyboard is locked\r
//\r
- if (!(KeyReadStatusRegister (ConsoleIn) & 0x10)) {\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
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
-\r
-Routine Description:\r
+{\r
+ EFI_STATUS Status;\r
+ KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;\r
+ EFI_KEY_DATA KeyData;\r
\r
- Implement SIMPLE_TEXT_IN.ReadKeyStroke().\r
- Retrieve key values for driver user.\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
-Arguments:\r
+/**\r
+ Event notification function for SIMPLE_TEXT_IN.WaitForKey event\r
+ Signal the event if there is key available\r
\r
-Returns:\r
+ @param Event the event object\r
+ @param Context waitting context\r
\r
---*/\r
-// GC_TODO: This - add argument and description to function comment\r
-// GC_TODO: Key - add argument and description to function comment\r
-// GC_TODO: EFI_DEVICE_ERROR - add return value to function comment\r
-// GC_TODO: EFI_NOT_READY - add return value to function comment\r
-// GC_TODO: EFI_SUCCESS - add return value to function comment\r
+**/\r
+VOID\r
+EFIAPI\r
+KeyboardWaitForKey (\r
+ IN EFI_EVENT Event,\r
+ IN VOID *Context\r
+ )\r
{\r
- EFI_STATUS Status;\r
- KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;\r
- EFI_TPL OldTpl;\r
+ EFI_TPL OldTpl;\r
+ KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;\r
+ EFI_KEY_DATA KeyData;\r
\r
- ConsoleIn = KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r
+ ConsoleIn = (KEYBOARD_CONSOLE_IN_DEV *) Context;\r
\r
//\r
// Enter critical section\r
//\r
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r
\r
- if (ConsoleIn->KeyboardErr) {\r
- //\r
- // Leave critical section and return\r
- //\r
- gBS->RestoreTPL (OldTpl);\r
+ KeyboardTimerHandler (NULL, ConsoleIn);\r
\r
- return EFI_DEVICE_ERROR;\r
- }\r
- //\r
- // If there's no key, just return\r
- //\r
- Status = KeyboardCheckForKey (This);\r
- if (EFI_ERROR (Status)) {\r
+ if (!ConsoleIn->KeyboardErr) {\r
//\r
- // Leave critical section and return\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
- gBS->RestoreTPL (OldTpl);\r
- return EFI_NOT_READY;\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
- Key->ScanCode = ConsoleIn->Key.ScanCode;\r
- Key->UnicodeChar = ConsoleIn->Key.UnicodeChar;\r
-\r
- ConsoleIn->Key.ScanCode = SCAN_NULL;\r
- ConsoleIn->Key.UnicodeChar = 0x0000;\r
-\r
//\r
// Leave critical section and return\r
//\r
gBS->RestoreTPL (OldTpl);\r
-\r
- return EFI_SUCCESS;\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
-KeyboardWaitForKey (\r
+KeyboardWaitForKeyEx (\r
IN EFI_EVENT Event,\r
IN VOID *Context\r
)\r
-/*++\r
\r
-Routine Description:\r
+{\r
+ KeyboardWaitForKey (Event, Context);\r
+}\r
\r
- Event notification function for SIMPLE_TEXT_IN.WaitForKey event\r
- Signal the event if there is key available\r
+/**\r
+ Reset the input device and optionaly run diagnostics\r
\r
-Arguments:\r
+ @param This Protocol instance pointer.\r
+ @param ExtendedVerification Driver may perform diagnostics on reset.\r
\r
-Returns:\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
-// GC_TODO: Event - add argument and description to function comment\r
-// GC_TODO: Context - add argument and description to function comment\r
{\r
- EFI_TPL OldTpl;\r
- KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;\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
- ConsoleIn = KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (Context);\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 (ConsoleIn->KeyboardErr) {\r
- //\r
- // Leave critical section and return\r
- //\r
- gBS->RestoreTPL (OldTpl);\r
- return ;\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
- // Someone is waiting on the keyboard event, if there's\r
- // a key pending, signal the event\r
+ // Update the status light\r
//\r
- if (!EFI_ERROR (KeyboardCheckForKey (Context))) {\r
- gBS->SignalEvent (Event);\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 ;\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
-KeyboardCheckForKey (\r
- IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This\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
+{\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
-Routine Description:\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
- GC_TODO: Add function description\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
-Arguments:\r
+ *NotifyHandle = NewNotify;\r
+ Status = EFI_SUCCESS;\r
\r
- This - GC_TODO: add argument description\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
-Returns:\r
\r
- EFI_SUCCESS - GC_TODO: Add description for return value\r
+ @retval EFI_SUCCESS The notification function was unregistered successfully.\r
+ @retval EFI_INVALID_PARAMETER The NotificationHandle is invalid.\r
\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
- KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;\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
- ConsoleIn = KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r
+ ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);\r
\r
//\r
- // If ready to read next key, check it\r
+ // Enter critical section\r
//\r
- if (ConsoleIn->Key.ScanCode == SCAN_NULL && ConsoleIn->Key.UnicodeChar == 0x00) {\r
- return KeyGetchar (ConsoleIn);\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
- return EFI_SUCCESS;\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