+/*
+ * freeglut_input_devices_mswin.c
+ *
+ * The Windows-specific mouse cursor related stuff.
+ *
+ * Copyright (c) 2012 Stephen J. Baker. All Rights Reserved.
+ * Written by John F. Fay, <fayjf@sourceforge.net>
+ * Creation date: Sat Jan 21, 2012
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <GL/freeglut.h>
+#include "../Common/freeglut_internal.h"
+
+#include <sys/types.h>
+#include <winbase.h>
+
+typedef struct {
+ HANDLE fh;
+ COMMTIMEOUTS timeouts_save;
+ DCB dcb_save;
+} SERIALPORT;
+
+/* Serial Port Prototypes */
+SERIALPORT *serial_open ( const char *device );
+void serial_close ( SERIALPORT *port );
+int serial_getchar ( SERIALPORT *port );
+int serial_putchar ( SERIALPORT *port, unsigned char ch );
+void serial_flush ( SERIALPORT *port );
+
+
+void fgPlatformRegisterDialDevice ( const char *dial_device )
+{
+ if (!dial_device){
+ static char devname[256];
+ DWORD size=sizeof(devname);
+ DWORD type = REG_SZ;
+ HKEY key;
+ if (RegOpenKeyA(HKEY_LOCAL_MACHINE,"SOFTWARE\\FreeGLUT",&key)==ERROR_SUCCESS) {
+ if (RegQueryValueExA(key,"DialboxSerialPort",NULL,&type,(LPBYTE)devname,&size)==ERROR_SUCCESS){
+ dial_device=devname;
+ }
+ RegCloseKey(key);
+ }
+ }
+}
+
+
+/* Serial Port Functions */
+SERIALPORT *serial_open(const char *device){
+ HANDLE fh;
+ DCB dcb={sizeof(DCB)};
+ COMMTIMEOUTS timeouts;
+ SERIALPORT *port;
+
+ fh = CreateFile(device,GENERIC_READ|GENERIC_WRITE,0,NULL,
+ OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
+ if (!fh) return NULL;
+
+ port = malloc(sizeof(SERIALPORT));
+ ZeroMemory(port, sizeof(SERIALPORT));
+ port->fh = fh;
+
+ /* save current port settings */
+ GetCommState(fh,&port->dcb_save);
+ GetCommTimeouts(fh,&port->timeouts_save);
+
+ dcb.DCBlength=sizeof(DCB);
+ BuildCommDCB("96,n,8,1",&dcb);
+ SetCommState(fh,&dcb);
+
+ ZeroMemory(&timeouts,sizeof(timeouts));
+ timeouts.ReadTotalTimeoutConstant=1;
+ timeouts.WriteTotalTimeoutConstant=1;
+ SetCommTimeouts(fh,&timeouts);
+
+ serial_flush(port);
+
+ return port;
+}
+
+void serial_close(SERIALPORT *port){
+ if (port){
+ /* restore old port settings */
+ SetCommState(port->fh,&port->dcb_save);
+ SetCommTimeouts(port->fh,&port->timeouts_save);
+ CloseHandle(port->fh);
+ free(port);
+ }
+}
+
+int serial_getchar(SERIALPORT *port){
+ DWORD n;
+ unsigned char ch;
+ if (!port) return EOF;
+ if (!ReadFile(port->fh,&ch,1,&n,NULL)) return EOF;
+ if (n==1) return ch;
+ return EOF;
+}
+
+int serial_putchar(SERIALPORT *port, unsigned char ch){
+ DWORD n;
+ if (!port) return 0;
+ return WriteFile(port->fh,&ch,1,&n,NULL);
+}
+
+void serial_flush ( SERIALPORT *port )
+{
+ FlushFileBuffers(port->fh);
+}
+