From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 597AD82426 for ; Fri, 23 Dec 2016 00:13:34 -0800 (PST) Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga101.jf.intel.com with ESMTP; 23 Dec 2016 00:13:33 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,392,1477983600"; d="scan'208";a="915466562" Received: from shwdeopenpsi068.ccr.corp.intel.com ([10.239.9.9]) by orsmga003.jf.intel.com with ESMTP; 23 Dec 2016 00:13:23 -0800 From: Star Zeng To: edk2-devel@lists.01.org Cc: Star Zeng , Ruiyu Ni , Michael Kinney , Feng Tian Date: Fri, 23 Dec 2016 16:13:10 +0800 Message-Id: <1482480792-35264-4-git-send-email-star.zeng@intel.com> X-Mailer: git-send-email 2.7.0.windows.1 In-Reply-To: <1482480792-35264-1-git-send-email-star.zeng@intel.com> References: <1482480792-35264-1-git-send-email-star.zeng@intel.com> Subject: [PATCH V2 3/5] MdeModulePkg Ps2KbDxe: Execute key notify func at TPL_CALLBACK X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Dec 2016 08:13:34 -0000 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 Cc: Michael Kinney Cc: Feng Tian Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Star Zeng --- .../Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c | 12 +++++- MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c | 49 ++++++++++++++++++++++ MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.c | 20 +++++++++ MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.h | 15 +++++++ 4 files changed, 94 insertions(+), 2 deletions(-) diff --git a/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c b/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c index eeb7de34abc8..f92521046f5b 100644 --- a/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c +++ b/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdCtrller.c @@ -1420,7 +1420,7 @@ 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 ( @@ -1430,7 +1430,13 @@ 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); } } @@ -1629,6 +1635,8 @@ 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 diff --git a/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c b/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c index f6ccd9598fb0..bc58fe2f8c7c 100644 --- a/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c +++ b/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c @@ -681,3 +681,52 @@ Exit: return Status; } +/** + Process key notify. + + @param Event Indicates the event that invoke this function. + @param Context Indicates the calling context. +**/ +VOID +EFIAPI +KeyNotifyProcessHandler ( + IN EFI_EVENT Event, + IN VOID *Context + ) +{ + EFI_STATUS Status; + KEYBOARD_CONSOLE_IN_DEV *ConsoleIn; + EFI_KEY_DATA KeyData; + LIST_ENTRY *Link; + LIST_ENTRY *NotifyList; + KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify; + EFI_TPL OldTpl; + + ConsoleIn = (KEYBOARD_CONSOLE_IN_DEV *) Context; + + // + // Invoke notification functions. + // + NotifyList = &ConsoleIn->NotifyList; + while (TRUE) { + // + // Enter critical section + // + OldTpl = gBS->RaiseTPL (TPL_NOTIFY); + Status = PopEfikeyBufHead (&ConsoleIn->EfiKeyQueueForNotify, &KeyData); + // + // Leave critical section + // + gBS->RestoreTPL (OldTpl); + if (EFI_ERROR (Status)) { + break; + } + for (Link = GetFirstNode (NotifyList); !IsNull (NotifyList, Link); Link = GetNextNode (NotifyList, Link)) { + CurrentNotify = CR (Link, KEYBOARD_CONSOLE_IN_EX_NOTIFY, NotifyEntry, KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE); + if (IsKeyRegistered (&CurrentNotify->KeyData, &KeyData)) { + CurrentNotify->KeyNotificationFn (&KeyData); + } + } + } +} + diff --git a/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.c b/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.c index 4df1b890e62f..6121d29fb791 100644 --- a/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.c +++ b/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.c @@ -351,6 +351,19 @@ KbdControllerDriverStart ( goto ErrorExit; } + Status = gBS->CreateEvent ( + EVT_NOTIFY_SIGNAL, + TPL_CALLBACK, + KeyNotifyProcessHandler, + ConsoleIn, + &ConsoleIn->KeyNotifyProcessEvent + ); + if (EFI_ERROR (Status)) { + Status = EFI_OUT_OF_RESOURCES; + StatusCode = EFI_PERIPHERAL_KEYBOARD | EFI_P_EC_CONTROLLER_ERROR; + goto ErrorExit; + } + REPORT_STATUS_CODE_WITH_DEVICE_PATH ( EFI_PROGRESS_CODE, EFI_PERIPHERAL_KEYBOARD | EFI_P_PC_PRESENCE_DETECT, @@ -430,6 +443,9 @@ ErrorExit: if ((ConsoleIn != NULL) && (ConsoleIn->ConInEx.WaitForKeyEx != NULL)) { gBS->CloseEvent (ConsoleIn->ConInEx.WaitForKeyEx); } + if ((ConsoleIn != NULL) && (ConsoleIn->KeyNotifyProcessEvent != NULL)) { + gBS->CloseEvent (ConsoleIn->KeyNotifyProcessEvent); + } KbdFreeNotifyList (&ConsoleIn->NotifyList); if ((ConsoleIn != NULL) && (ConsoleIn->ControllerNameTable != NULL)) { FreeUnicodeStringTable (ConsoleIn->ControllerNameTable); @@ -570,6 +586,10 @@ KbdControllerDriverStop ( gBS->CloseEvent (ConsoleIn->ConInEx.WaitForKeyEx); ConsoleIn->ConInEx.WaitForKeyEx = NULL; } + if (ConsoleIn->KeyNotifyProcessEvent != NULL) { + gBS->CloseEvent (ConsoleIn->KeyNotifyProcessEvent); + ConsoleIn->KeyNotifyProcessEvent = NULL; + } KbdFreeNotifyList (&ConsoleIn->NotifyList); FreeUnicodeStringTable (ConsoleIn->ControllerNameTable); gBS->FreePool (ConsoleIn); diff --git a/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.h b/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.h index d0aecfb08788..e41c1980fc6f 100644 --- a/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.h +++ b/MdeModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2Keyboard.h @@ -105,6 +105,7 @@ typedef struct { // SCAN_CODE_QUEUE ScancodeQueue; EFI_KEY_QUEUE EfiKeyQueue; + EFI_KEY_QUEUE EfiKeyQueueForNotify; // // Error state @@ -118,6 +119,7 @@ typedef struct { // Notification Function List // LIST_ENTRY NotifyList; + EFI_EVENT KeyNotifyProcessEvent; } KEYBOARD_CONSOLE_IN_DEV; #define KEYBOARD_CONSOLE_IN_DEV_FROM_THIS(a) CR (a, KEYBOARD_CONSOLE_IN_DEV, ConIn, KEYBOARD_CONSOLE_IN_DEV_SIGNATURE) @@ -269,6 +271,19 @@ KeyGetchar ( ); /** + Process key notify. + + @param Event Indicates the event that invoke this function. + @param Context Indicates the calling context. +**/ +VOID +EFIAPI +KeyNotifyProcessHandler ( + IN EFI_EVENT Event, + IN VOID *Context + ); + +/** Perform 8042 controller and keyboard Initialization. If ExtendedVerification is TRUE, do additional test for the keyboard interface -- 2.7.0.windows.1