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IntelFrameworkModulePkg Ps2KbDxe: Execute key notify func at TPL_CALLBACK

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Current implementation executes key notify function in TimerHandler
at TPL_NOTIFY. The code change is to make key notify function
executed at TPL_CALLBACK to reduce the time occupied at TPL_NOTIFY.

The code will signal KeyNotify process event if the key pressed
matches any key registered and insert the KeyData to the EFI Key
queue for notify, then the KeyNotify process handler will invoke
key notify functions at TPL_CALLBACK.

Cc: Ruiyu Ni <Ruiyu.ni@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Jeff Fan <jeff.fan@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Ruiyu Ni <Ruiyu.ni@intel.com>
This commit is contained in:
Star Zeng
2016-12-16 18:07:12 +08:00
parent 35dadd7c54
commit 7863d11c00
4 changed files with 98 additions and 5 deletions
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14
IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c
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@@ -1,7 +1,7 @@
/** @file
Routines that access 8042 keyboard controller
Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
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
@@ -1456,7 +1456,7 @@ KeyGetchar (
}
//
// Invoke notification functions if exist
// Signal KeyNotify process event if this key pressed matches any key registered.
//
for (Link = GetFirstNode (&ConsoleIn->NotifyList); !IsNull (&ConsoleIn->NotifyList, Link); Link = GetNextNode (&ConsoleIn->NotifyList, Link)) {
CurrentNotify = CR (
@@ -1466,7 +1466,13 @@ KeyGetchar (
KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE
);
if (IsKeyRegistered (&CurrentNotify->KeyData, &KeyData)) {
CurrentNotify->KeyNotificationFn (&KeyData);
//
// The key notification function needs to run at TPL_CALLBACK
// while current TPL is TPL_NOTIFY. It will be invoked in
// KeyNotifyProcessHandler() which runs at TPL_CALLBACK.
//
PushEfikeyBufTail (&ConsoleIn->EfiKeyQueueForNotify, &KeyData);
gBS->SignalEvent (ConsoleIn->KeyNotifyProcessEvent);
}
}
@@ -1665,6 +1671,8 @@ InitKeyboard (
ConsoleIn->ScancodeQueue.Tail = 0;
ConsoleIn->EfiKeyQueue.Head = 0;
ConsoleIn->EfiKeyQueue.Tail = 0;
ConsoleIn->EfiKeyQueueForNotify.Head = 0;
ConsoleIn->EfiKeyQueueForNotify.Tail = 0;
//
// Reset the status indicators