diff options
Diffstat (limited to 'MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c')
| -rw-r--r-- | MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c | 68 |
1 files changed, 67 insertions, 1 deletions
diff --git a/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c b/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c index fb7558b730..cdd1684277 100644 --- a/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c +++ b/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c @@ -2,7 +2,7 @@ USB Keyboard Driver that manages USB keyboard and produces Simple Text Input
Protocol and Simple Text Input Ex Protocol.
-Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 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
@@ -312,6 +312,17 @@ USBKeyboardDriverBindingStart ( goto ErrorExit;
}
+ Status = gBS->CreateEvent (
+ EVT_NOTIFY_SIGNAL,
+ TPL_CALLBACK,
+ KeyNotifyProcessHandler,
+ UsbKeyboardDevice,
+ &UsbKeyboardDevice->KeyNotifyProcessEvent
+ );
+ if (EFI_ERROR (Status)) {
+ goto ErrorExit;
+ }
+
//
// Install Simple Text Input Protocol and Simple Text Input Ex Protocol
// for the USB keyboard device.
@@ -427,6 +438,9 @@ ErrorExit: if (UsbKeyboardDevice->SimpleInputEx.WaitForKeyEx != NULL) {
gBS->CloseEvent (UsbKeyboardDevice->SimpleInputEx.WaitForKeyEx);
}
+ if (UsbKeyboardDevice->KeyNotifyProcessEvent != NULL) {
+ gBS->CloseEvent (UsbKeyboardDevice->KeyNotifyProcessEvent);
+ }
if (UsbKeyboardDevice->KeyboardLayoutEvent != NULL) {
ReleaseKeyboardLayoutResources (UsbKeyboardDevice);
gBS->CloseEvent (UsbKeyboardDevice->KeyboardLayoutEvent);
@@ -548,6 +562,7 @@ USBKeyboardDriverBindingStop ( gBS->CloseEvent (UsbKeyboardDevice->DelayedRecoveryEvent);
gBS->CloseEvent (UsbKeyboardDevice->SimpleInput.WaitForKey);
gBS->CloseEvent (UsbKeyboardDevice->SimpleInputEx.WaitForKeyEx);
+ gBS->CloseEvent (UsbKeyboardDevice->KeyNotifyProcessEvent);
KbdFreeNotifyList (&UsbKeyboardDevice->NotifyList);
ReleaseKeyboardLayoutResources (UsbKeyboardDevice);
@@ -559,6 +574,7 @@ USBKeyboardDriverBindingStop ( DestroyQueue (&UsbKeyboardDevice->UsbKeyQueue);
DestroyQueue (&UsbKeyboardDevice->EfiKeyQueue);
+ DestroyQueue (&UsbKeyboardDevice->EfiKeyQueueForNotify);
FreePool (UsbKeyboardDevice);
@@ -647,6 +663,7 @@ USBKeyboardReset ( //
InitQueue (&UsbKeyboardDevice->UsbKeyQueue, sizeof (USB_KEY));
InitQueue (&UsbKeyboardDevice->EfiKeyQueue, sizeof (EFI_KEY_DATA));
+ InitQueue (&UsbKeyboardDevice->EfiKeyQueueForNotify, sizeof (EFI_KEY_DATA));
return EFI_SUCCESS;
}
@@ -1170,3 +1187,52 @@ USBKeyboardUnregisterKeyNotify ( return EFI_INVALID_PARAMETER;
}
+/**
+ 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;
+ USB_KB_DEV *UsbKeyboardDevice;
+ EFI_KEY_DATA KeyData;
+ LIST_ENTRY *Link;
+ LIST_ENTRY *NotifyList;
+ KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;
+ EFI_TPL OldTpl;
+
+ UsbKeyboardDevice = (USB_KB_DEV *) Context;
+
+ //
+ // Invoke notification functions.
+ //
+ NotifyList = &UsbKeyboardDevice->NotifyList;
+ while (TRUE) {
+ //
+ // Enter critical section
+ //
+ OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
+ Status = Dequeue (&UsbKeyboardDevice->EfiKeyQueueForNotify, &KeyData, sizeof (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, USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE);
+ if (IsKeyRegistered (&CurrentNotify->KeyData, &KeyData)) {
+ CurrentNotify->KeyNotificationFn (&KeyData);
+ }
+ }
+ }
+}
+
|