Implementation for EFI_SIMPLE_TEXT_INPUT_PROTOCOL protocol.\r
\r
(C) Copyright 2014 Hewlett-Packard Development Company, L.P.<BR>\r
-Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>\r
+Copyright (C) 2016 Silicon Graphics, Inc. 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
TerminalDevice->RawFiFo->Head = TerminalDevice->RawFiFo->Tail;\r
TerminalDevice->UnicodeFiFo->Head = TerminalDevice->UnicodeFiFo->Tail;\r
TerminalDevice->EfiKeyFiFo->Head = TerminalDevice->EfiKeyFiFo->Tail;\r
+ TerminalDevice->EfiKeyFiFoForNotify->Head = TerminalDevice->EfiKeyFiFoForNotify->Tail;\r
\r
if (EFI_ERROR (Status)) {\r
REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
}\r
//\r
// Check whether serial buffer is empty.\r
+ // Skip the key transfer loop only if the SerialIo protocol instance\r
+ // successfully reports EFI_SERIAL_INPUT_BUFFER_EMPTY.\r
//\r
Status = SerialIo->GetControl (SerialIo, &Control);\r
-\r
- if ((Control & EFI_SERIAL_INPUT_BUFFER_EMPTY) == 0) {\r
+ if (EFI_ERROR (Status) || ((Control & EFI_SERIAL_INPUT_BUFFER_EMPTY) == 0)) {\r
//\r
// Fetch all the keys in the serial buffer,\r
// and insert the byte stream into RawFIFO.\r
TranslateRawDataToEfiKey (TerminalDevice);\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
+ BOOLEAN HasKey;\r
+ TERMINAL_DEV *TerminalDevice;\r
+ EFI_INPUT_KEY Key;\r
+ EFI_KEY_DATA KeyData;\r
+ LIST_ENTRY *Link;\r
+ LIST_ENTRY *NotifyList;\r
+ TERMINAL_CONSOLE_IN_EX_NOTIFY *CurrentNotify;\r
+ EFI_TPL OldTpl;\r
+\r
+ TerminalDevice = (TERMINAL_DEV *) Context;\r
+\r
+ //\r
+ // Invoke notification functions.\r
+ //\r
+ NotifyList = &TerminalDevice->NotifyList;\r
+ while (TRUE) {\r
+ //\r
+ // Enter critical section\r
+ // \r
+ OldTpl = gBS->RaiseTPL (TPL_NOTIFY);\r
+ HasKey = EfiKeyFiFoForNotifyRemoveOneKey (TerminalDevice->EfiKeyFiFoForNotify, &Key);\r
+ CopyMem (&KeyData.Key, &Key, sizeof (EFI_INPUT_KEY));\r
+ KeyData.KeyState.KeyShiftState = 0;\r
+ KeyData.KeyState.KeyToggleState = 0;\r
+ //\r
+ // Leave critical section\r
+ //\r
+ gBS->RestoreTPL (OldTpl);\r
+ if (!HasKey) {\r
+ break;\r
+ }\r
+ for (Link = GetFirstNode (NotifyList); !IsNull (NotifyList, Link); Link = GetNextNode (NotifyList, Link)) {\r
+ CurrentNotify = CR (Link, TERMINAL_CONSOLE_IN_EX_NOTIFY, NotifyEntry, TERMINAL_CONSOLE_IN_EX_NOTIFY_SIGNATURE);\r
+ if (IsKeyRegistered (&CurrentNotify->KeyData, &KeyData)) {\r
+ CurrentNotify->KeyNotificationFn (&KeyData);\r
+ }\r
+ }\r
+ }\r
+}\r
+\r
/**\r
Get one key out of serial buffer.\r
\r
return FALSE;\r
}\r
\r
+/**\r
+ Insert one pre-fetched key into the FIFO buffer.\r
+\r
+ @param EfiKeyFiFo Pointer to instance of EFI_KEY_FIFO.\r
+ @param Input The key will be input.\r
+\r
+ @retval TRUE If insert successfully.\r
+ @retval FALSE If FIFO buffer is full before key insertion,\r
+ and the key is lost.\r
+\r
+**/\r
+BOOLEAN\r
+EfiKeyFiFoForNotifyInsertOneKey (\r
+ EFI_KEY_FIFO *EfiKeyFiFo,\r
+ EFI_INPUT_KEY *Input\r
+ )\r
+{\r
+ UINT8 Tail;\r
+\r
+ Tail = EfiKeyFiFo->Tail;\r
+\r
+ if (IsEfiKeyFiFoForNotifyFull (EfiKeyFiFo)) {\r
+ //\r
+ // FIFO is full\r
+ //\r
+ return FALSE;\r
+ }\r
+\r
+ CopyMem (&EfiKeyFiFo->Data[Tail], Input, sizeof (EFI_INPUT_KEY));\r
+\r
+ EfiKeyFiFo->Tail = (UINT8) ((Tail + 1) % (FIFO_MAX_NUMBER + 1));\r
+\r
+ return TRUE;\r
+}\r
+\r
+/**\r
+ Remove one pre-fetched key out of the FIFO buffer.\r
+\r
+ @param EfiKeyFiFo Pointer to instance of EFI_KEY_FIFO.\r
+ @param Output The key will be removed.\r
+\r
+ @retval TRUE If remove successfully.\r
+ @retval FALSE If FIFO buffer is empty before remove operation.\r
+\r
+**/\r
+BOOLEAN\r
+EfiKeyFiFoForNotifyRemoveOneKey (\r
+ EFI_KEY_FIFO *EfiKeyFiFo,\r
+ EFI_INPUT_KEY *Output\r
+ )\r
+{\r
+ UINT8 Head;\r
+\r
+ Head = EfiKeyFiFo->Head;\r
+ ASSERT (Head < FIFO_MAX_NUMBER + 1);\r
+\r
+ if (IsEfiKeyFiFoForNotifyEmpty (EfiKeyFiFo)) {\r
+ //\r
+ // FIFO is empty\r
+ //\r
+ Output->ScanCode = SCAN_NULL;\r
+ Output->UnicodeChar = 0;\r
+ return FALSE;\r
+ }\r
+\r
+ CopyMem (Output, &EfiKeyFiFo->Data[Head], sizeof (EFI_INPUT_KEY));\r
+\r
+ EfiKeyFiFo->Head = (UINT8) ((Head + 1) % (FIFO_MAX_NUMBER + 1));\r
+\r
+ return TRUE;\r
+}\r
+\r
+/**\r
+ Clarify whether FIFO buffer is empty.\r
+\r
+ @param EfiKeyFiFo Pointer to instance of EFI_KEY_FIFO.\r
+\r
+ @retval TRUE If FIFO buffer is empty.\r
+ @retval FALSE If FIFO buffer is not empty.\r
+\r
+**/\r
+BOOLEAN\r
+IsEfiKeyFiFoForNotifyEmpty (\r
+ EFI_KEY_FIFO *EfiKeyFiFo\r
+ )\r
+{\r
+ if (EfiKeyFiFo->Head == EfiKeyFiFo->Tail) {\r
+ return TRUE;\r
+ } else {\r
+ return FALSE;\r
+ }\r
+}\r
+\r
+/**\r
+ Clarify whether FIFO buffer is full.\r
+\r
+ @param EfiKeyFiFo Pointer to instance of EFI_KEY_FIFO.\r
+\r
+ @retval TRUE If FIFO buffer is full.\r
+ @retval FALSE If FIFO buffer is not full.\r
+\r
+**/\r
+BOOLEAN\r
+IsEfiKeyFiFoForNotifyFull (\r
+ EFI_KEY_FIFO *EfiKeyFiFo\r
+ )\r
+{\r
+ UINT8 Tail;\r
+ UINT8 Head;\r
+\r
+ Tail = EfiKeyFiFo->Tail;\r
+ Head = EfiKeyFiFo->Head;\r
+\r
+ if (((Tail + 1) % (FIFO_MAX_NUMBER + 1)) == Head) {\r
+ return TRUE;\r
+ }\r
+\r
+ return FALSE;\r
+}\r
+\r
/**\r
Insert one pre-fetched key into the FIFO buffer.\r
\r
KeyData.KeyState.KeyToggleState = 0;\r
\r
//\r
- // Invoke notification functions if exist\r
+ // Signal KeyNotify process event if this key pressed matches any key registered.\r
//\r
NotifyList = &TerminalDevice->NotifyList;\r
for (Link = GetFirstNode (NotifyList); !IsNull (NotifyList,Link); Link = GetNextNode (NotifyList,Link)) {\r
TERMINAL_CONSOLE_IN_EX_NOTIFY_SIGNATURE\r
);\r
if (IsKeyRegistered (&CurrentNotify->KeyData, &KeyData)) {\r
- CurrentNotify->KeyNotificationFn (&KeyData);\r
+ //\r
+ // The key notification function needs to run at TPL_CALLBACK\r
+ // while current TPL is TPL_NOTIFY. It will be invoked in\r
+ // KeyNotifyProcessHandler() which runs at TPL_CALLBACK.\r
+ //\r
+ EfiKeyFiFoForNotifyInsertOneKey (TerminalDevice->EfiKeyFiFoForNotify, Key);\r
+ gBS->SignalEvent (TerminalDevice->KeyNotifyProcessEvent);\r
}\r
}\r
if (IsEfiKeyFiFoFull (TerminalDevice)) {\r
break;\r
}\r
} else if (TerminalDevice->TerminalType == TTYTERMTYPE) {\r
- /* Also accept VT100 escape codes for F1-F4 for TTY term */\r
+ /* Also accept VT100 escape codes for F1-F4, HOME and END for TTY term */\r
switch (UnicodeChar) {\r
case 'P':\r
Key.ScanCode = SCAN_F1;\r
case 'S':\r
Key.ScanCode = SCAN_F4;\r
break;\r
+ case 'H':\r
+ Key.ScanCode = SCAN_HOME;\r
+ break;\r
+ case 'F':\r
+ Key.ScanCode = SCAN_END;\r
+ break;\r
}\r
}\r
\r
break;\r
case 'H':\r
if (TerminalDevice->TerminalType == PCANSITYPE ||\r
- TerminalDevice->TerminalType == VT100TYPE) {\r
+ TerminalDevice->TerminalType == VT100TYPE ||\r
+ TerminalDevice->TerminalType == TTYTERMTYPE) {\r
Key.ScanCode = SCAN_HOME;\r
}\r
break;\r
case 'F':\r
- if (TerminalDevice->TerminalType == PCANSITYPE) {\r
+ if (TerminalDevice->TerminalType == PCANSITYPE ||\r
+ TerminalDevice->TerminalType == TTYTERMTYPE) {\r
Key.ScanCode = SCAN_END;\r
}\r
break;\r
TerminalDevice->TtyEscapeStr[TerminalDevice->TtyEscapeIndex] = 0; /* Terminate string */\r
EscCode = (UINT16) StrDecimalToUintn(TerminalDevice->TtyEscapeStr);\r
switch (EscCode) {\r
+ case 2:\r
+ Key.ScanCode = SCAN_INSERT;\r
+ break;\r
case 3:\r
Key.ScanCode = SCAN_DELETE;\r
break;\r
+ case 5:\r
+ Key.ScanCode = SCAN_PAGE_UP;\r
+ break;\r
+ case 6:\r
+ Key.ScanCode = SCAN_PAGE_DOWN;\r
+ break;\r
case 11:\r
case 12:\r
case 13:\r
projects / mirror_edk2.git / blobdiff