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/*
* Copyright (c) 2010, Texas Instruments Incorporated
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* author: Vidhoon Viswanathan
* date: 28 sept 2012
* This file contains all ION plugin related types
* and methods that will be accessed only from
* within or corresponding GLUE layers.
*/
#include <unistd.h>
#include <ion_ti/ion.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/eventfd.h>
#include <fcntl.h>
#include <linux/rpmsg_omx.h>
#include <errno.h>
#include "memplugin.h"
/* struct MEMPLUGIN_ION_PARAMS : contains all params that are specific to
* ION APIs for buffer allocation.
* @param nAlign: alignment of buffers
* @param nOffset: offset needed for buffers
* @param alloc_flags: allocation flags depending on type of buffer needed
* @param map_flags: mapping flags depending on type of mapping
* @param prot: buffer protection flag
*/
typedef struct MEMPLUGIN_ION_PARAMS {
size_t nAlign;
off_t nOffset;
OMX_U32 alloc_flags;
OMX_S32 map_flags;
OMX_S32 prot;
}MEMPLUGIN_ION_PARAMS;
/******************************************************************
* MACROS DEFINITION
******************************************************************/
#define MEMPLUGIN_ION_PARAMS_INIT(buffer_ion_params) do {\
(buffer_ion_params)->alloc_flags = 1 << OMAP_ION_HEAP_SECURE_INPUT;\
(buffer_ion_params)->map_flags = MAP_SHARED;\
(buffer_ion_params)->nAlign = 0x1000;\
(buffer_ion_params)->prot = PROT_READ | PROT_WRITE;\
(buffer_ion_params)->nOffset = 0;\
}while(0)
/******************************************************************
* FUNCTIONS DEFINITION
******************************************************************/
/*MemPlugin_ION_Init: To initialize a MemPlugin from DOMX PROXY
* Must be called before any other API calls.
* Maps the plugin handle to corresponding proxy
* element for further access
*
* @param pMemPluginHandle: handle that provides access for APIs
* corresponding to the plugin
*/
MEMPLUGIN_ERRORTYPE MemPlugin_ION_Init(void **pMemPluginHandle);
/*MemPlugin_Configure: To do different types of plugin specific
* config operations required.
*
* @param pMemPluginHandle: handle that provides access for APIs
* corresponding to the plugin
* @param pConfigData: data specific to configuration to be done
*/
MEMPLUGIN_ERRORTYPE MemPlugin_ION_Configure(void *pMemPluginHandle,
void *pConfigData);
/*MemPlugin_Open: To open and obtain a client for the MemPlugin
*
* @param pMemPluginHandle: handle that provides access for APIs
* corresponding to the plugin
* @param pClient: MemPlugin client used for operations
*/
MEMPLUGIN_ERRORTYPE MemPlugin_ION_Open(void *pMemPluginHandle,
OMX_U32 *pClient);
/*MemPlugin_Close: To close the client of MemPlugin
*
* @param pMemPluginHandle: handle that provides access for APIs
* corresponding to the plugin
* @param nClient: MemPlugin client used for operations
*/
MEMPLUGIN_ERRORTYPE MemPlugin_ION_Close(void *pMemPluginHandle,
OMX_U32 nClient);
/*MemPlugin_Alloc: To allocate a buffer
*
* @param pMemPluginHandle: handle that provides access for APIs
* corresponding to the plugin
* @param nClient: MemPlugin client used for operations
* @param pBufferParams: All buffer IN params required for allocation
* @param pBufferProp: All buffer properties obtained from allocation
*/
MEMPLUGIN_ERRORTYPE MemPlugin_ION_Alloc(void *pMemPluginHandle,
OMX_U32 nClient,
MEMPLUGIN_BUFFER_PARAMS *pIonBufferParams,
MEMPLUGIN_BUFFER_PROPERTIES *pIonBufferProp);
/*MemPlugin_Free: To free a buffer
*
* @param pMemPluginHandle: handle that provides access for APIs
* corresponding to the plugin
* @param nClient: MemPlugin client used for operations
* @param pBufferParams: All buffer IN params required for freeing
* @param pBufferProp: All buffer properties required for freeing
*/
MEMPLUGIN_ERRORTYPE MemPlugin_ION_Free(void *pMemPluginHandle,
OMX_U32 nClient,
MEMPLUGIN_BUFFER_PARAMS *pIonBufferParams,
MEMPLUGIN_BUFFER_PROPERTIES *pIonBufferProp);
/*MemPlugin_DeInit: To destroy a MemPlugin from DOMX PROXY
*
* @param pMemPluginHandle: handle that provides identifies the
* plugin to be destroyed
*/
MEMPLUGIN_ERRORTYPE MemPlugin_ION_DeInit(void *pMemPluginHandle);
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