never removed. Such design ensures sytem function well during none console\r
device situation.\r
\r
-Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
(LIST_ENTRY *) NULL,\r
(LIST_ENTRY *) NULL\r
},\r
+ (EFI_KEY_DATA *) NULL,\r
+ 0,\r
0,\r
FALSE,\r
\r
)\r
{\r
EFI_STATUS Status;\r
+ UINTN TextInExListCount;\r
\r
//\r
// Allocate buffer for Simple Text Input device\r
);\r
ASSERT_EFI_ERROR (Status);\r
\r
+ //\r
+ // Allocate buffer for KeyQueue\r
+ //\r
+ TextInExListCount = ConInPrivate->TextInExListCount;\r
+ Status = ConSplitterGrowBuffer (\r
+ sizeof (EFI_KEY_DATA),\r
+ &TextInExListCount,\r
+ (VOID **) &ConInPrivate->KeyQueue\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return EFI_OUT_OF_RESOURCES;\r
+ }\r
+\r
//\r
// Allocate buffer for Simple Text Input Ex device\r
//\r
return EFI_OUT_OF_RESOURCES;\r
}\r
}\r
+\r
+ TextInExListCount = Private->TextInExListCount;\r
+ Status = ConSplitterGrowBuffer (\r
+ sizeof (EFI_KEY_DATA),\r
+ &TextInExListCount,\r
+ (VOID **) &Private->KeyQueue\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return EFI_OUT_OF_RESOURCES;\r
+ }\r
+\r
Status = ConSplitterGrowBuffer (\r
sizeof (EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *),\r
&Private->TextInExListCount,\r
\r
if (!EFI_ERROR (ReturnStatus)) {\r
ToggleStateSyncReInitialization (Private);\r
+ //\r
+ // Empty the key queue.\r
+ //\r
+ Private->CurrentNumberOfKeys = 0;\r
}\r
\r
return ReturnStatus;\r
}\r
\r
+/**\r
+ Dequeue the saved key from internal key queue.\r
+\r
+ @param Private Protocol instance pointer.\r
+ @param KeyData A pointer to a buffer that is filled in with the\r
+ keystroke state data for the key that was\r
+ pressed.\r
+ @retval EFI_NOT_FOUND Queue is empty.\r
+ @retval EFI_SUCCESS First key is dequeued and returned.\r
+**/\r
+EFI_STATUS\r
+ConSplitterTextInExDequeueKey (\r
+ IN TEXT_IN_SPLITTER_PRIVATE_DATA *Private,\r
+ OUT EFI_KEY_DATA *KeyData\r
+ )\r
+{\r
+ if (Private->CurrentNumberOfKeys == 0) {\r
+ return EFI_NOT_FOUND;\r
+ }\r
+ //\r
+ // Return the first saved key.\r
+ //\r
+ CopyMem (KeyData, &Private->KeyQueue[0], sizeof (EFI_KEY_DATA));\r
+ Private->CurrentNumberOfKeys--;\r
+ CopyMem (\r
+ &Private->KeyQueue[0],\r
+ &Private->KeyQueue[1],\r
+ Private->CurrentNumberOfKeys * sizeof (EFI_KEY_DATA)\r
+ );\r
+ return EFI_SUCCESS;\r
+}\r
\r
/**\r
Reads the next keystroke from the input device. The WaitForKey Event can\r
{\r
EFI_STATUS Status;\r
UINTN Index;\r
- EFI_INPUT_KEY CurrentKey;\r
+ EFI_KEY_DATA KeyData;\r
+ \r
+ //\r
+ // Return the first saved non-NULL key.\r
+ //\r
+ while (TRUE) {\r
+ Status = ConSplitterTextInExDequeueKey (Private, &KeyData);\r
+ if (EFI_ERROR (Status)) {\r
+ break;\r
+ }\r
+ if ((KeyData.Key.ScanCode != CHAR_NULL) || (KeyData.Key.UnicodeChar != SCAN_NULL)) {\r
+ CopyMem (Key, &KeyData.Key, sizeof (EFI_INPUT_KEY));\r
+ return Status;\r
+ }\r
+ }\r
\r
Key->UnicodeChar = 0;\r
Key->ScanCode = SCAN_NULL;\r
for (Index = 0; Index < Private->CurrentNumberOfConsoles;) {\r
Status = Private->TextInList[Index]->ReadKeyStroke (\r
Private->TextInList[Index],\r
- &CurrentKey\r
+ &KeyData.Key\r
);\r
if (!EFI_ERROR (Status)) {\r
//\r
// If it is not partial keystorke, return the key. Otherwise, continue\r
// to read key from THIS physical console input device.\r
//\r
- if ((CurrentKey.ScanCode != CHAR_NULL) || (CurrentKey.UnicodeChar != SCAN_NULL)) {\r
- *Key = CurrentKey;\r
+ if ((KeyData.Key.ScanCode != CHAR_NULL) || (KeyData.Key.UnicodeChar != SCAN_NULL)) {\r
+ CopyMem (Key, &KeyData.Key, sizeof (EFI_INPUT_KEY));\r
return Status;\r
}\r
} else {\r
\r
if (!EFI_ERROR (ReturnStatus)) {\r
ToggleStateSyncReInitialization (Private);\r
+ //\r
+ // Empty the key queue.\r
+ //\r
+ Private->CurrentNumberOfKeys = 0;\r
}\r
\r
return ReturnStatus;\r
TEXT_IN_SPLITTER_PRIVATE_DATA *Private;\r
EFI_STATUS Status;\r
UINTN Index;\r
+ EFI_KEY_STATE KeyState;\r
EFI_KEY_DATA CurrentKeyData;\r
\r
\r
\r
Private->KeyEventSignalState = FALSE;\r
\r
- KeyData->Key.UnicodeChar = 0;\r
- KeyData->Key.ScanCode = SCAN_NULL;\r
-\r
//\r
// Signal ConnectConIn event on first call in Lazy ConIn mode\r
//\r
}\r
\r
//\r
- // if no physical console input device exists, return EFI_NOT_READY;\r
- // if any physical console input device has key input,\r
- // return the key and EFI_SUCCESS.\r
+ // Return the first saved key.\r
+ //\r
+ Status = ConSplitterTextInExDequeueKey (Private, KeyData);\r
+ if (!EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ ASSERT (Private->CurrentNumberOfKeys == 0);\r
+\r
+ ZeroMem (&KeyState, sizeof (KeyState));\r
+\r
+ //\r
+ // Iterate through all physical consoles to get key state.\r
+ // Some physical consoles may return valid key.\r
+ // Queue the valid keys.\r
//\r
- for (Index = 0; Index < Private->CurrentNumberOfExConsoles;) {\r
+ for (Index = 0; Index < Private->CurrentNumberOfExConsoles; Index++) {\r
+ ZeroMem (&CurrentKeyData, sizeof (EFI_KEY_DATA));\r
Status = Private->TextInExList[Index]->ReadKeyStrokeEx (\r
- Private->TextInExList[Index],\r
- &CurrentKeyData\r
- );\r
+ Private->TextInExList[Index],\r
+ &CurrentKeyData\r
+ );\r
+ if (EFI_ERROR (Status) && (Status != EFI_NOT_READY)) {\r
+ continue;\r
+ }\r
+\r
+ //\r
+ // Consolidate the key state from all physical consoles.\r
+ //\r
+ if ((CurrentKeyData.KeyState.KeyShiftState & EFI_SHIFT_STATE_VALID) != 0) {\r
+ KeyState.KeyShiftState |= CurrentKeyData.KeyState.KeyShiftState;\r
+ }\r
+ if ((CurrentKeyData.KeyState.KeyToggleState & EFI_TOGGLE_STATE_VALID) != 0) {\r
+ KeyState.KeyToggleState |= CurrentKeyData.KeyState.KeyToggleState;\r
+ }\r
+\r
if (!EFI_ERROR (Status)) {\r
//\r
// If virtual KeyState has been required to be exposed, or it is not\r
- // partial keystorke, return the key. Otherwise, continue to read key\r
- // from THIS physical console input device.\r
+ // partial keystorke, queue the key.\r
+ // It's possible that user presses at multiple keyboards at the same moment,\r
+ // Private->KeyQueue[] are the storage to save all the keys.\r
//\r
if ((Private->VirtualKeyStateExported) ||\r
(CurrentKeyData.Key.ScanCode != CHAR_NULL) ||\r
(CurrentKeyData.Key.UnicodeChar != SCAN_NULL)) {\r
- CopyMem (KeyData, &CurrentKeyData, sizeof (CurrentKeyData));\r
- return Status;\r
+ CopyMem (\r
+ &Private->KeyQueue[Private->CurrentNumberOfKeys],\r
+ &CurrentKeyData,\r
+ sizeof (EFI_KEY_DATA)\r
+ );\r
+ Private->CurrentNumberOfKeys++;\r
}\r
- } else {\r
- //\r
- // Continue to read key from NEXT physical console input device.\r
- //\r
- Index++;\r
}\r
}\r
\r
+ //\r
+ // Consolidate the key state for all keys in Private->KeyQueue[]\r
+ //\r
+ for (Index = 0; Index < Private->CurrentNumberOfKeys; Index++) {\r
+ CopyMem (&Private->KeyQueue[Index].KeyState, &KeyState, sizeof (EFI_KEY_STATE));\r
+ }\r
+ \r
+ //\r
+ // Return the first saved key.\r
+ //\r
+ Status = ConSplitterTextInExDequeueKey (Private, KeyData);\r
+ if (!EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Always return the key state even there is no key pressed.\r
+ //\r
+ ZeroMem (&KeyData->Key, sizeof (KeyData->Key));\r
+ CopyMem (&KeyData->KeyState, &KeyState, sizeof (KeyData->KeyState));\r
return EFI_NOT_READY;\r
}\r
\r
projects / mirror_edk2.git / blobdiff