rtfbuf.h
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/*****************************************************************************
* Copyright Statement:
* --------------------
* This software is protected by Copyright and the information contained
* herein is confidential. The software may not be copied and the information
* contained herein may not be used or disclosed except with the written
* permission of MediaTek Inc. (C) 2005
*
* BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
* THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
* RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO BUYER ON
* AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
* NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
* SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
* SUPPLIED WITH THE MEDIATEK SOFTWARE, AND BUYER AGREES TO LOOK ONLY TO SUCH
* THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. MEDIATEK SHALL ALSO
* NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE RELEASES MADE TO BUYER'S
* SPECIFICATION OR TO CONFORM TO A PARTICULAR STANDARD OR OPEN FORUM.
*
* BUYER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND CUMULATIVE
* LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
* AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
* OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY BUYER TO
* MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
*
* THE TRANSACTION CONTEMPLATED HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE
* WITH THE LAWS OF THE STATE OF CALIFORNIA, USA, EXCLUDING ITS CONFLICT OF
* LAWS PRINCIPLES. ANY DISPUTES, CONTROVERSIES OR CLAIMS ARISING THEREOF AND
* RELATED THERETO SHALL BE SETTLED BY ARBITRATION IN SAN FRANCISCO, CA, UNDER
* THE RULES OF THE INTERNATIONAL CHAMBER OF COMMERCE (ICC).
*
*****************************************************************************/
/*****************************************************************************
*
* Filename:
* ---------
* rtfbuf.h
*
* Project:
* --------
* Maui
*
* Description:
* ------------
* This file contains core functions of file system.
*
* Author:
* -------
*
*
*============================================================================
* HISTORY
* Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
*------------------------------------------------------------------------------
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*============================================================================
****************************************************************************/
/**************************************************************************/
/* */
/* File: BUFFERS.C Copyright (c) 1998,2002 */
/* Version: 4.0 On Time Informatik GmbH */
/* */
/* */
/* On Time /////////////----- */
/* Informatik GmbH ///////////// */
/* --------------------------------------------------///////////// */
/* Real-Time and System Software */
/* */
/**************************************************************************/
/* RTFiles buffer management */
#ifndef __RTFBUF_H__
#define __RTFBUF_H__
#define BITS (8*sizeof(int)) // default # of bits in integer
#define FMAX (1 << (BITS/2)) // max number of file handles
#define UMAX ((1 << (BITS/2-1)) - 1) // max Unique value for file handles
// flags specifying how buffers are loaded and errors should be handled
#define NO_RAISE 0x00000001
#define NO_CRITICAL 0x00000002
#define NO_LOAD 0x00000004
#define ALT_BUFFER 0x00000008
/*
* Default buffer size for Count Free Cluster
*
* If no FS dedicated buffer, get 2 KB control buffer instead
* !NOTE! Please do not change the size without discussing with control buffer's owner!
*/
#define FS_DEFAULT_BUFF_SIZE_COUNT_FREE_CLUSTER (2 FS_KB)
#define FS_DEFAULT_BUFF_SIZE_COPY_FILE (2 FS_KB)
// Interface to File System
//-----------------------------------------------------------------------------
extern void FreeBuffer(RTFDevice * Dev);
extern void DiscardOtherBuffer(RTFBuffer * B);
extern void DiscardBuffer(RTFDevice * Dev);
extern void *SearchBuffer(RTFDevice * Dev, RTFSector Sector);
extern void SetDirty(RTFDevice * Dev);
extern void CommitBuffer(RTFDevice * Dev);
extern void DiscardAllBuffers(RTFDevice * Dev);
extern void DiscardBuffersRange(RTFDevice * Dev, RTFSector Sector, RTFSector Count, int Commit);
extern void FlushAllBuffers(RTFDevice * Dev);
extern void FlushFAT(RTFDevice * Dev);
extern void RTFAPI FlushAllBuffersInGeometryOrder(RTFDevice * Dev);
#if defined(__FS_CACHE_SUPPORT__) && !defined(__FS_CARD_DOWNLOAD__)
extern void MTCacheInit(void);
extern void *CacheBufferFill(RTFDevice *TargetDevice, RTFDrive *TargetDrive, RTFSector SectorAddress, UINT Flags, kal_int32 PrefetchSectors);
#define GetBuffer(Dev, SectorAddress, Flags) CacheBufferFill(Dev, NULL, SectorAddress, Flags, 0)
#define GetBufferDIR(Dev, SectorAddress, PrefetchSectors) CacheBufferFill(Dev, NULL, SectorAddress, FS_BTYPE_DIR, PrefetchSectors)
#define GetBufferDIRNoLoad(Dev, SectorAddress) CacheBufferFill(Dev, NULL, SectorAddress, FS_BTYPE_DIR | NO_LOAD, 1)
#define GetBufferFAT(Drive, SectorAddress, PrefetchSectors) CacheBufferFill(Drive->Dev, Drive, SectorAddress, FS_BTYPE_FAT, PrefetchSectors)
extern kal_uint32 GetFATPrefetchSectors(RTFile *f);
extern kal_uint32 GetFATPrefetchSectorsEx(RTFDrive *drive, kal_uint32 offset);
#define GetFATPrefetchSectorsByOffset(drive, offset) ((((offset>>drive->ClusterShift)*(drive->FATType))>>12)+1)
#define SetRecoverableFlag(Dev, Flag)
// Cache Profile
extern void CacheProfileConsume(RTFBuffer *ptr);
extern void CacheProfileFree(RTFBuffer *ptr);
extern kal_int32 CacheProfileGetLineSize(RTFDevice *TargetDevice, kal_uint32 Flags);
extern kal_int32 CacheProfileGetConsumedSize(RTFDevice *TargetDevice, kal_uint32 Flags);
extern kal_int32 CacheProfileAllocatable(RTFDevice *TargetDevice, kal_uint32 Flags, kal_uint32 DemandSectorLength);
// Cache Operation
extern void CacheBufferFlushAll(void);
#else // defined(__FS_CACHE_SUPPORT__) && !defined(__FS_CARD_DOWNLOAD__)
extern void AllocBuffers(void);
extern void RTFAPI MTBufInit(const kal_uint32 buf_addr, const kal_uint32 buf_size);
extern void SetRecoverableFlag(RTFDevice * Dev, BYTE block_type);
#ifdef __FS_DEDICATED_BUFFER__
#define MTCacheInit() do { AllocBuffers(); MTBufInit((kal_uint32)gFS_DedicatedBufferPool, FS_DEDICATED_BUFFER_SIZE); } while(0)
#else
#define MTCacheInit() do { AllocBuffers(); } while(0)
#endif
#ifdef __FS_INTERVAL_BUFFER__
int fs_srv_buf_alloc(void);
void *fs_srv_buf_get(RTFDevice * Dev, RTFSector Sector, UINT Flags);
int fs_srv_buf_final(void);
#endif // __FS_INTERVAL_BUFFER__
extern void *GetBuffer(RTFDevice *Dev, RTFSector SectorAddress, UINT Flags);
#define GetBufferDIR(Dev, SectorAddress, PrefetchSectors) GetBuffer(Dev, SectorAddress, FS_BTYPE_DIR)
#define GetBufferDIRNoLoad(Dev, SectorAddress) GetBuffer(Dev, SectorAddress, FS_BTYPE_DIR | NO_LOAD)
#define GetBufferFAT(Drive, SectorAddress, PrefetchSectors) GetBuffer(Drive->Dev, SectorAddress, FS_BTYPE_FAT)
#define GetFATPrefetchSectors(a) (0)
#define GetFATPrefetchSectorsByOffset(drive, offset) (0)
#endif // defined(__FS_CACHE_SUPPORT__) && !defined(__FS_CARD_DOWNLOAD__)
// Dedicate Buffe
//-----------------------------------------------------------------------------
#ifdef __FS_DEDICATED_BUFFER__
// FS dedicated buffer allocation times limitation
#define FS_INT_DBUF_ALLOC_MAX_TIMES (2)
// FS dedicated buffer allocation method
#define FS_INT_DBUF_ALLOC_PRECISE (0x1)
#define FS_INT_DBUF_ALLOC_GREEDY (0x2)
typedef struct
{
kal_uint32 free_addr;
kal_uint32 free_size;
kal_uint32 allocated_size[FS_INT_DBUF_ALLOC_MAX_TIMES];
kal_uint32 allocated_addr[FS_INT_DBUF_ALLOC_MAX_TIMES];
kal_taskid allocated_task;
kal_uint8 allocated_times;
} fs_buffer_alloc_data_struct;
extern int MTBufCheckRange(unsigned int addr);
extern int MTBufAlloc(unsigned int size, unsigned char **buf, unsigned int flag);
extern void MTBufFree(unsigned int size, unsigned char **buf);
extern UINT gFS_DedicatedBufferPool[];
extern const UINT FS_DEDICATED_BUFFER_SIZE;
extern const UINT FS_BUFF_SIZE_MOVE;
extern const UINT FS_BUFF_SIZE_COUNT_FREE_CLUSTER;
#endif /* __FS_DEDICATED_BUFFER__ */
#endif /* __RTFBUF_H__ */