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/* $Id: HGSMIBase.h $ */
/** @file
* VBox Host Guest Shared Memory Interface (HGSMI) - buffer management.
*/
/*
* Copyright (C) 2006-2020 Oracle Corporation
*
* 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 */
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