aboutsummaryrefslogtreecommitdiff
path: root/board/MAI/bios_emulator/scitech/src/pm/tests/key15.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/pm/tests/key15.c')
-rw-r--r--board/MAI/bios_emulator/scitech/src/pm/tests/key15.c96
1 files changed, 96 insertions, 0 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/pm/tests/key15.c b/board/MAI/bios_emulator/scitech/src/pm/tests/key15.c
new file mode 100644
index 000000000..5c0d27a17
--- /dev/null
+++ b/board/MAI/bios_emulator/scitech/src/pm/tests/key15.c
@@ -0,0 +1,96 @@
+/****************************************************************************
+*
+* SciTech OS Portability Manager Library
+*
+* ========================================================================
+*
+* The contents of this file are subject to the SciTech MGL Public
+* License Version 1.0 (the "License"); you may not use this file
+* except in compliance with the License. You may obtain a copy of
+* the License at http://www.scitechsoft.com/mgl-license.txt
+*
+* Software distributed under the License is distributed on an
+* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+* implied. See the License for the specific language governing
+* rights and limitations under the License.
+*
+* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc.
+*
+* The Initial Developer of the Original Code is SciTech Software, Inc.
+* All Rights Reserved.
+*
+* ========================================================================
+*
+*
+* Language: ANSI C
+* Environment: any
+*
+* Description: Test program to check the ability to install a C based
+* keyboard Int 15h interrupt handler. This is an alternate
+* way to intercept scancodes from the keyboard by hooking
+* the Int 15h keyboard intercept callout.
+*
+* Functions tested: PM_setKey15Handler()
+* PM_restoreKey15Handler()
+*
+*
+****************************************************************************/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "pmapi.h"
+
+volatile long count = 0;
+volatile short lastScanCode = 0;
+
+#pragma off (check_stack) /* No stack checking under Watcom */
+
+short PMAPI keyHandler(short scanCode)
+{
+ count++;
+ lastScanCode = scanCode;
+ return scanCode; /* Let BIOS process as normal */
+}
+
+int main(void)
+{
+ int ch;
+ PM_lockHandle lh;
+
+ printf("Program running in ");
+ switch (PM_getModeType()) {
+ case PM_realMode:
+ printf("real mode.\n\n");
+ break;
+ case PM_286:
+ printf("16 bit protected mode.\n\n");
+ break;
+ case PM_386:
+ printf("32 bit protected mode.\n\n");
+ break;
+ }
+
+ /* Install our timer handler and lock handler pages in memory. It is
+ * difficult to get the size of a function in C, but we know our
+ * function is well less than 100 bytes (and an entire 4k page will
+ * need to be locked by the server anyway).
+ */
+ PM_lockCodePages((__codePtr)keyHandler,100,&lh);
+ PM_lockDataPages((void*)&count,sizeof(count),&lh);
+ PM_installBreakHandler(); /* We *DONT* want Ctrl-Break's! */
+ PM_setKey15Handler(keyHandler);
+ printf("Keyboard interrupt handler installed - Type some characters and\n");
+ printf("hit ESC to exit\n");
+ while ((ch = PM_getch()) != 0x1B) {
+ printf("%c", ch);
+ fflush(stdout);
+ }
+
+ PM_restoreKey15Handler();
+ PM_restoreBreakHandler();
+ PM_unlockDataPages((void*)&count,sizeof(count),&lh);
+ PM_unlockCodePages((__codePtr)keyHandler,100,&lh);
+ printf("\n\nKeyboard handler was called %ld times\n", count);
+ printf("Last scan code %04X\n", lastScanCode);
+ return 0;
+}