/*******************************************************************************
@File
@Title          Common bridge header for dmabuf
@Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
@Description    Declares common defines and structures used by both the client
                and server side of the bridge for dmabuf
@License        Dual MIT/GPLv2

The contents of this file are subject to the MIT license as set out below.

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.

Alternatively, the contents of this file may be used under the terms of
the GNU General Public License Version 2 ("GPL") in which case the provisions
of GPL are applicable instead of those above.

If you wish to allow use of your version of this file only under the terms of
GPL, and not to allow others to use your version of this file under the terms
of the MIT license, indicate your decision by deleting the provisions above
and replace them with the notice and other provisions required by GPL as set
out in the file called "GPL-COPYING" included in this distribution. If you do
not delete the provisions above, a recipient may use your version of this file
under the terms of either the MIT license or GPL.

This License is also included in this distribution in the file called
"MIT-COPYING".

EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) 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; AND (B) IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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*******************************************************************************/

#ifndef COMMON_DMABUF_BRIDGE_H
#define COMMON_DMABUF_BRIDGE_H

#include <powervr/mem_types.h>

#include "img_types.h"
#include "pvrsrv_error.h"

#include "pvrsrv_memallocflags.h"

#define PVRSRV_BRIDGE_DMABUF_CMD_FIRST			0
#define PVRSRV_BRIDGE_DMABUF_PHYSMEMIMPORTDMABUF			PVRSRV_BRIDGE_DMABUF_CMD_FIRST+0
#define PVRSRV_BRIDGE_DMABUF_PHYSMEMEXPORTDMABUF			PVRSRV_BRIDGE_DMABUF_CMD_FIRST+1
#define PVRSRV_BRIDGE_DMABUF_PHYSMEMIMPORTSPARSEDMABUF			PVRSRV_BRIDGE_DMABUF_CMD_FIRST+2
#define PVRSRV_BRIDGE_DMABUF_CMD_LAST			(PVRSRV_BRIDGE_DMABUF_CMD_FIRST+2)

/*******************************************
            PhysmemImportDmaBuf
 *******************************************/

/* Bridge in structure for PhysmemImportDmaBuf */
typedef struct PVRSRV_BRIDGE_IN_PHYSMEMIMPORTDMABUF_TAG
{
	IMG_INT ifd;
	PVRSRV_MEMALLOCFLAGS_T uiFlags;
	IMG_UINT32 ui32NameSize;
	const IMG_CHAR *puiName;
} __attribute__ ((packed)) PVRSRV_BRIDGE_IN_PHYSMEMIMPORTDMABUF;

/* Bridge out structure for PhysmemImportDmaBuf */
typedef struct PVRSRV_BRIDGE_OUT_PHYSMEMIMPORTDMABUF_TAG
{
	IMG_HANDLE hPMRPtr;
	IMG_DEVMEM_SIZE_T uiSize;
	IMG_DEVMEM_ALIGN_T sAlign;
	PVRSRV_ERROR eError;
} __attribute__ ((packed)) PVRSRV_BRIDGE_OUT_PHYSMEMIMPORTDMABUF;

/*******************************************
            PhysmemExportDmaBuf
 *******************************************/

/* Bridge in structure for PhysmemExportDmaBuf */
typedef struct PVRSRV_BRIDGE_IN_PHYSMEMEXPORTDMABUF_TAG
{
	IMG_HANDLE hPMR;
} __attribute__ ((packed)) PVRSRV_BRIDGE_IN_PHYSMEMEXPORTDMABUF;

/* Bridge out structure for PhysmemExportDmaBuf */
typedef struct PVRSRV_BRIDGE_OUT_PHYSMEMEXPORTDMABUF_TAG
{
	IMG_INT iFd;
	PVRSRV_ERROR eError;
} __attribute__ ((packed)) PVRSRV_BRIDGE_OUT_PHYSMEMEXPORTDMABUF;

/*******************************************
            PhysmemImportSparseDmaBuf
 *******************************************/

/* Bridge in structure for PhysmemImportSparseDmaBuf */
typedef struct PVRSRV_BRIDGE_IN_PHYSMEMIMPORTSPARSEDMABUF_TAG
{
	IMG_INT ifd;
	PVRSRV_MEMALLOCFLAGS_T uiFlags;
	IMG_DEVMEM_SIZE_T uiChunkSize;
	IMG_UINT32 ui32NumPhysChunks;
	IMG_UINT32 ui32NumVirtChunks;
	IMG_UINT32 *pui32MappingTable;
	IMG_UINT32 ui32NameSize;
	const IMG_CHAR *puiName;
} __attribute__ ((packed)) PVRSRV_BRIDGE_IN_PHYSMEMIMPORTSPARSEDMABUF;

/* Bridge out structure for PhysmemImportSparseDmaBuf */
typedef struct PVRSRV_BRIDGE_OUT_PHYSMEMIMPORTSPARSEDMABUF_TAG
{
	IMG_HANDLE hPMRPtr;
	IMG_DEVMEM_SIZE_T uiSize;
	IMG_DEVMEM_ALIGN_T sAlign;
	PVRSRV_ERROR eError;
} __attribute__ ((packed)) PVRSRV_BRIDGE_OUT_PHYSMEMIMPORTSPARSEDMABUF;

#endif /* COMMON_DMABUF_BRIDGE_H */