osal/Exynos_OSAL_SharedMemory.h

   1 /*
   2  *
   3  * Copyright 2012 Samsung Electronics S.LSI Co. LTD
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *      http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 /*
  19  * @file        Exynos_OSAL_SharedMemory.h
  20  * @brief
  21  * @author      SeungBeom Kim (sbcrux.kim@samsung.com)
  22  *              Taehwan Kim (t_h.kim@samsung.com)
  23  * @version     2.0.0
  24  * @history
  25  *   2012.02.20 : Create
  26  */
  27
  28 #ifndef EXYNOS_OSAL_SHAREDMEMORY
  29 #define EXYNOS_OSAL_SHAREDMEMORY
  30
  31 #include "OMX_Types.h"
  32
  33 typedef enum _MEMORY_TYPE
  34 {
  35     NORMAL_MEMORY   = 0x00,
  36     CACHED_MEMORY   = 0x01,  /* cached */
  37     CONTIG_MEMORY   = 0x02,  /* continuos */
  38     SECURE_MEMORY   = 0x04,  /* secure */
  39     EXT_MEMORY      = 0x08,  /* ext area */
  40 } MEMORY_TYPE;
  41
  42 #ifdef __cplusplus
  43 extern "C" {
  44 #endif
  45
  46 OMX_HANDLETYPE Exynos_OSAL_SharedMemory_Open();
  47 void Exynos_OSAL_SharedMemory_Close(OMX_HANDLETYPE handle);
  48 OMX_PTR Exynos_OSAL_SharedMemory_Alloc(OMX_HANDLETYPE handle, OMX_U32 size, MEMORY_TYPE memoryType);
  49 void Exynos_OSAL_SharedMemory_Free(OMX_HANDLETYPE handle, OMX_PTR pBuffer);
  50 int Exynos_OSAL_SharedMemory_VirtToION(OMX_HANDLETYPE handle, OMX_PTR pBuffer);
  51 OMX_PTR Exynos_OSAL_SharedMemory_IONToVirt(OMX_HANDLETYPE handle, int ion_addr);
  52
  53 #ifdef USE_DMA_BUF
  54 OMX_PTR Exynos_OSAL_SharedMemory_Map(OMX_HANDLETYPE handle, OMX_U32 size, unsigned int ionfd);
  55 void Exynos_OSAL_SharedMemory_Unmap(OMX_HANDLETYPE handle, unsigned int ionfd);
  56 #endif
  57
  58 #ifdef __cplusplus
  59 }
  60 #endif
  61
  62 #endif
  63