diff options
Diffstat (limited to 'Library/CommonLib/EfiTouch.c')
| -rw-r--r-- | Library/CommonLib/EfiTouch.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/Library/CommonLib/EfiTouch.c b/Library/CommonLib/EfiTouch.c new file mode 100644 index 0000000..9009f82 --- /dev/null +++ b/Library/CommonLib/EfiTouch.c @@ -0,0 +1,47 @@ +/** @file
+EFI touch/absolute pointer helpers
+
+Copyright (c) 2016. Disk Cryptography Services for EFI (DCS), Alex Kolotnikov
+Copyright (c) 2016. VeraCrypt, Mounir IDRASSI
+
+This program and the accompanying materials are licensed and made available
+under the terms and conditions of the GNU Lesser General Public License, version 3.0 (LGPL-3.0).
+
+The full text of the license may be found at
+https://opensource.org/licenses/LGPL-3.0
+**/
+#include <Library/CommonLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/PrintLib.h>
+#include <Protocol/AbsolutePointer.h>
+
+EFI_HANDLE* gTouchHandles = NULL;
+UINTN gTouchCount = 0;
+int gTouchSimulate = 0;
+UINT32 gTouchSimulateStep = 1;
+
+EFI_ABSOLUTE_POINTER_PROTOCOL* gTouchPointer = NULL;
+
+EFI_STATUS
+InitTouch() {
+ EFI_STATUS res;
+ res = EfiGetHandles(ByProtocol, &gEfiAbsolutePointerProtocolGuid, 0, &gTouchHandles, &gTouchCount);
+ if (gTouchCount > 0) {
+ TouchGetIO(gTouchHandles[gTouchCount - 1], &gTouchPointer);
+ }
+ return res;
+}
+
+
+EFI_STATUS
+TouchGetIO(
+ IN EFI_HANDLE Handle,
+ OUT EFI_ABSOLUTE_POINTER_PROTOCOL** io
+ ) {
+ if (!io) {
+ return EFI_INVALID_PARAMETER;
+ }
+ return gBS->HandleProtocol(Handle, &gEfiAbsolutePointerProtocolGuid, (VOID**)io);
+}
+
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