129 lines
4.6 KiB
C
129 lines
4.6 KiB
C
/******************************************************************************
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*
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* Copyright 2007, Silicon Image, Inc. All rights reserved.
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* No part of this work may be reproduced, modified, distributed, transmitted,
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* transcribed, or translated into any language or computer format, in any form
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* or by any means without written permission of: Silicon Image, Inc., 1060
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* East Arques Avenue, Sunnyvale, California 94085
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*
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*****************************************************************************/
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/**
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* @file media_buffer.h
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*
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* @brief
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* Media Buffer interface
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*
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* <pre>
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*
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* Principal Author: Joerg Detert
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* Creation date: Feb 28, 2008
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*
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* </pre>
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*
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*****************************************************************************/
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#ifndef MEDIA_BUFFER_H_
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#define MEDIA_BUFFER_H_
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#include <assert.h>
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#include <stddef.h>
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#include "rk_aiq_comm.h"
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#if defined (__cplusplus)
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extern "C" {
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#endif
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#define RET_SUCCESS 0 //!< this has to be 0, if clauses rely on it
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#define RET_FAILURE 1 //!< general failure
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#define RET_NOTSUPP 2 //!< feature not supported
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#define RET_BUSY 3 //!< there's already something going on...
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#define RET_CANCELED 4 //!< operation canceled
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#define RET_OUTOFMEM 5 //!< out of memory
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#define RET_OUTOFRANGE 6 //!< parameter/value out of range
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#define RET_IDLE 7 //!< feature/subsystem is in idle state
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#define RET_WRONG_HANDLE 8 //!< handle is wrong
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#define RET_NULL_POINTER 9 //!< the/one/all parameter(s) is a(are) NULL pointer(s)
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#define RET_NOTAVAILABLE 10 //!< profile not available
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#define RET_DIVISION_BY_ZERO 11 //!< a divisor equals ZERO
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#define RET_WRONG_STATE 12 //!< state machine in wrong state
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#define RET_INVALID_PARM 13 //!< invalid parameter
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#define RET_PENDING 14 //!< command pending
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#define RET_WRONG_CONFIG 15 //!< given configuration is invalid
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typedef unsigned long ulong_t;
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/**
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* @brief The MediaBufferPool holds elements from type MediaBuffer_t.
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*/
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typedef struct MediaBuffer_s
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{
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uint8_t* pBaseAddress; /**< Base address of system memory buffer (can differ from
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actual buffer start address, set in ScmiBuffer). */
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uint32_t baseSize; /**< Base size of buffer (can differ from actual buffer
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size, set in ScmiBuffer). */
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uint32_t lockCount; /**< Counting how many times buffer is used. 0 means
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buffer belongs to pool and is free. */
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void* pOwner;
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void* pMetaData; /**< Pointer to optional meta data structure. */
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} MediaBuffer_t;
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/*****************************************************************************/
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/**
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* @brief Initialize a mutex.
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*
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* @param
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*
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*****************************************************************************/
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void AtomicMutexInit();
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/*****************************************************************************/
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/**
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* @brief Destroy a mutex.
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*
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* @param
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*
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*****************************************************************************/
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void AtomicMutexDestory();
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/*****************************************************************************/
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/**
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* @brief Initialize a @ref MediaBuffer_t.
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*
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* @param pBuf Buffer to initialize.
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*
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*****************************************************************************/
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extern void MediaBufInit(MediaBuffer_t* pBuf);
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/*****************************************************************************/
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/**
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* @brief Lock a buffer of a owning buffer pool. Buffer will not be available as
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* empty buffer until unlocked as many times as locked before
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* and released.
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*
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* @param pBufQueue Pointer to Media Buffer Queue object.
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* @param pBuf Pointer to media buffer.
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*
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* @return Status of operation.
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*****************************************************************************/
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extern RESULT MediaBufLockBuffer(MediaBuffer_t* pBuf);
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/*****************************************************************************/
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/**
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* @brief Unlock a buffer of a owning buffer pool which has previously been locked.
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*
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* @param pBufQueue Pointer to Media Buffer Queue object.
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* @param pBuf Pointer to media buffer.
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*
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* @return Status of operation.
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*****************************************************************************/
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extern RESULT MediaBufUnlockBuffer(MediaBuffer_t* pBuf);
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#if defined (__cplusplus)
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}
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#endif
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#endif /*MEDIA_BUFFER_H_*/
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