1 files changed, 60 insertions, 0 deletions
diff --git a/include/VBox/Graphics/HGSMIBase.h b/include/VBox/Graphics/HGSMIBase.h
new file mode 100644
index 00000000..aad0bfbe
--- /dev/null
+++ b/include/VBox/Graphics/HGSMIBase.h
@@ -0,0 +1,60 @@
+/* $Id: HGSMIBase.h $ */
+/** @file
+ * VBox Host Guest Shared Memory Interface (HGSMI) - buffer management.
+ */
+
+/*
+ * Copyright (C) 2006-2022 Oracle and/or its affiliates.
+ *
+ * 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 THE AUTHORS OR COPYRIGHT
+ * HOLDERS 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.
+ */
+
+#ifndef VBOX_INCLUDED_Graphics_HGSMIBase_h
+#define VBOX_INCLUDED_Graphics_HGSMIBase_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include "HGSMI.h"
+#include "HGSMIContext.h"
+#include "VBoxVideoIPRT.h"
+
+RT_C_DECLS_BEGIN
+
+/** @name Base HGSMI Buffer APIs
+ * @{ */
+
+/** Acknowlege an IRQ. */
+DECLINLINE(void) VBoxHGSMIClearIrq(PHGSMIHOSTCOMMANDCONTEXT pCtx)
+{
+    VBVO_PORT_WRITE_U32(pCtx->port, HGSMIOFFSET_VOID);
+}
+
+DECLHIDDEN(void RT_UNTRUSTED_VOLATILE_HOST *) VBoxHGSMIBufferAlloc(PHGSMIGUESTCOMMANDCONTEXT pCtx, HGSMISIZE cbData,
+                                                                   uint8_t u8Ch, uint16_t u16Op);
+DECLHIDDEN(void) VBoxHGSMIBufferFree(PHGSMIGUESTCOMMANDCONTEXT pCtx, void RT_UNTRUSTED_VOLATILE_HOST *pvBuffer);
+DECLHIDDEN(int)  VBoxHGSMIBufferSubmit(PHGSMIGUESTCOMMANDCONTEXT pCtx, void RT_UNTRUSTED_VOLATILE_HOST *pvBuffer);
+/** @}  */
+
+RT_C_DECLS_END
+
+#endif /* !VBOX_INCLUDED_Graphics_HGSMIBase_h */