[MSPORTS]

- Add msports.h header file.
- Add the initial version of the com port database and use it to track the used com ports.

svn path=/trunk/; revision=51866

reactos/include/ddk/msports.h

@@ -0,0 +1,52 @@
+#ifndef _MSPORTS_
+#define _MSPORTS_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+DECLARE_HANDLE(HCOMDB);
+typedef HCOMDB *PHCOMDB;
+#define HCOMDB_INVALID_HANDLE_VALUE ((HCOMDB)INVALID_HANDLE_VALUE)
+
+#define COMDB_MIN_PORTS_ARBITRATED 256
+#define COMDB_MAX_PORTS_ARBITRATED 4096
+
+LONG
+WINAPI
+ComDBClaimPort(IN HCOMDB hComDB,
+               IN DWORD ComNumber,
+               IN BOOL ForceClaim,
+               OUT PBOOL Forced);
+
+LONG
+WINAPI
+ComDBClose(IN HCOMDB hComDB);
+
+LONG
+WINAPI
+ComDBGetCurrentPortUsage(IN HCOMDB hComDB,
+                         OUT PBYTE Buffer,
+                         IN DWORD BufferSize,
+                         IN ULONG ReportType,
+                         OUT LPDWORD MaxPortsReported);
+
+LONG
+WINAPI
+ComDBOpen(OUT HCOMDB *phComDB);
+
+LONG
+WINAPI
+ComDBReleasePort(IN HCOMDB hComDB,
+                 IN DWORD ComNumber);
+
+LONG
+WINAPI
+ComDBResizeDatabase(IN HCOMDB hComDB,
+                    IN DWORD NewSize);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _MSPORTS_ */