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/*
* FreeRTOS+FAT build 191128 - Note: FreeRTOS+FAT is still in the lab!
* Copyright (C) 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
* Authors include James Walmsley, Hein Tibosch and Richard Barry
*
* 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.
*
* 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. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* https://www.FreeRTOS.org
*
*/
/**
* @file ff_dir.h
* @ingroup DIR
**/
#ifndef _FF_DIR_H_
#define _FF_DIR_H_
#ifndef PLUS_FAT_H
#error this header will be included from "plusfat.h"
#endif
#define FIND_FLAG_SHORTNAME_SET 0x01u
#define FIND_FLAG_SHORTNAME_CHECKED 0x02u
#define FIND_FLAG_SHORTNAME_FOUND 0x04u
#define FIND_FLAG_FITS_SHORT 0x08u
#define FIND_FLAG_SIZE_OK 0x10u
#define FIND_FLAG_CREATE_FLAG 0x20u
#define FIND_FLAG_FITS_SHORT_OK ( FIND_FLAG_FITS_SHORT | FIND_FLAG_SIZE_OK )
typedef struct
{
uint32_t ulChainLength;
uint32_t ulDirCluster;
uint32_t ulCurrentClusterLCN;
uint32_t ulCurrentClusterNum;
FF_Buffer_t *pxBuffer;
} FF_FetchContext_t;
typedef struct
{
uint32_t ulFileSize;
uint32_t ulObjectCluster;
/* Book Keeping. */
uint32_t ulCurrentCluster;
uint32_t ulAddrCurrentCluster;
uint32_t ulDirCluster;
uint16_t usCurrentItem;
/* End Book Keeping. */
#if( ffconfigTIME_SUPPORT != 0 )
FF_SystemTime_t xCreateTime; /* Date and Time Created. */
FF_SystemTime_t xModifiedTime; /* Date and Time Modified. */
FF_SystemTime_t xAccessedTime; /* Date of Last Access. */
#endif
#if( ffconfigFINDAPI_ALLOW_WILDCARDS != 0 )
#if( ffconfigUNICODE_UTF16_SUPPORT != 0 )
FF_T_WCHAR pcWildCard[ ffconfigMAX_FILENAME ];
#else
char pcWildCard[ ffconfigMAX_FILENAME ];
#endif
BaseType_t xInvertWildCard;
#endif
#if( ffconfigUNICODE_UTF16_SUPPORT != 0 )
FF_T_WCHAR pcFileName[ ffconfigMAX_FILENAME ];
#else
char pcFileName[ ffconfigMAX_FILENAME ];
#endif
#if( ffconfigLFN_SUPPORT != 0 ) && ( ffconfigINCLUDE_SHORT_NAME != 0 )
char pcShortName[ 13 ];
#endif
uint8_t ucAttrib;
#if( ffconfigDEV_SUPPORT != 0 )
uint8_t ucIsDeviceDir;
#endif
FF_FetchContext_t xFetchContext;
} FF_DirEnt_t;
/*
* Some public API's, i.e. they're used but ff_stdio.c
*/
#if( ffconfigUNICODE_UTF16_SUPPORT != 0 )
FF_Error_t FF_FindFirst( FF_IOManager_t *pxIOManager, FF_DirEnt_t *pxDirent, const FF_T_WCHAR *pcPath );
FF_Error_t FF_MkDir( FF_IOManager_t *pxIOManager, const FF_T_WCHAR *pcPath );
#else
FF_Error_t FF_FindFirst( FF_IOManager_t *pxIOManager, FF_DirEnt_t *pxDirent, const char *pcPath );
FF_Error_t FF_MkDir( FF_IOManager_t *pxIOManager, const char *pcPath );
#endif
FF_Error_t FF_FindNext( FF_IOManager_t *pxIOManager, FF_DirEnt_t *pxDirent );
static portINLINE void FF_RewindFind( FF_DirEnt_t *pxDirent )
{
pxDirent->usCurrentItem = 0;
}
/*
* Some API's internal to the +FAT library.
*/
FF_Error_t FF_GetEntry( FF_IOManager_t *pxIOManager, uint16_t usEntry, uint32_t ulDirCluster, FF_DirEnt_t *pxDirent );
FF_Error_t FF_PutEntry( FF_IOManager_t *pxIOManager, uint16_t usEntry, uint32_t ulDirCluster, FF_DirEnt_t *pxDirent, uint8_t *pucContents );
int8_t FF_FindEntry( FF_IOManager_t *pxIOManager, uint32_t ulDirCluster, int8_t *Name, FF_DirEnt_t *pxDirent, BaseType_t LFNs );
void FF_PopulateShortDirent( FF_IOManager_t *pxIOManager, FF_DirEnt_t *pxDirent, const uint8_t *pucEntryBuffer );
FF_Error_t FF_PopulateLongDirent( FF_IOManager_t *pxIOManager, FF_DirEnt_t *pxDirent, uint16_t usEntry, FF_FetchContext_t *pFetchContext );
FF_Error_t FF_InitEntryFetch( FF_IOManager_t *pxIOManager, uint32_t ulDirCluster, FF_FetchContext_t *pContext );
FF_Error_t FF_FetchEntryWithContext( FF_IOManager_t *pxIOManager, uint32_t ulEntry, FF_FetchContext_t *pContext, uint8_t *pEntryBuffer );
FF_Error_t FF_PushEntryWithContext( FF_IOManager_t *pxIOManager, uint32_t ulEntry, FF_FetchContext_t *pContext, uint8_t *pEntryBuffer );
FF_Error_t FF_CleanupEntryFetch( FF_IOManager_t *pxIOManager, FF_FetchContext_t *pContext );
int8_t FF_PushEntry( FF_IOManager_t *pxIOManager, uint32_t ulDirCluster, uint16_t usEntry, uint8_t *buffer, void *pParam );
static portINLINE BaseType_t FF_isEndOfDir( const uint8_t *pucEntryBuffer )
{
return pucEntryBuffer[ 0 ] == ( uint8_t ) 0;
}
static portINLINE BaseType_t FF_isDeleted( const uint8_t *pucEntryBuffer )
{
return pucEntryBuffer[ 0 ] == ( uint8_t ) FF_FAT_DELETED;
}
struct _FF_FIND_PARAMS
{
uint32_t ulDirCluster; /* The beginning cluster of this directory. */
int32_t lFreeEntry; /* The first free entry big enough to add the file. */
uint32_t ulFlags; /* See FIND_FLAG_xxx defines above. */
char pcEntryBuffer[ 32 ]; /* LFN converted to short name. */
uint8_t ucCaseAttrib;
uint8_t ucFirstTilde;
};
typedef struct _FF_FIND_PARAMS FF_FindParams_t;
#if( ffconfigUNICODE_UTF16_SUPPORT != 0 )
uint32_t FF_CreateFile( FF_IOManager_t *pxIOManager, FF_FindParams_t *findParams, FF_T_WCHAR *FileName,
FF_DirEnt_t *pxDirent, FF_Error_t *pError );
uint32_t FF_FindEntryInDir( FF_IOManager_t *pxIOManager, FF_FindParams_t *findParams, const FF_T_WCHAR *name,
uint8_t pa_Attrib, FF_DirEnt_t *pxDirent, FF_Error_t *pError );
uint32_t FF_FindDir( FF_IOManager_t *pxIOManager, const FF_T_WCHAR *pcPath, uint16_t pathLen, FF_Error_t *pError );
void FF_CreateShortName( FF_FindParams_t *pxFindParams, const FF_T_WCHAR *pcLongName );
#else
uint32_t FF_CreateFile( FF_IOManager_t *pxIOManager, FF_FindParams_t *findParams, char *FileName,
FF_DirEnt_t *pxDirent, FF_Error_t *pError );
uint32_t FF_FindEntryInDir( FF_IOManager_t *pxIOManager, FF_FindParams_t *findParams, const char *name,
uint8_t pa_Attrib, FF_DirEnt_t *pxDirent, FF_Error_t *pError );
uint32_t FF_FindDir( FF_IOManager_t *pxIOManager, const char *pcPath, uint16_t pathLen, FF_Error_t *pError );
void FF_CreateShortName( FF_FindParams_t *pxFindParams, const char *pcLongName );
#endif
int32_t FF_FindShortName( FF_IOManager_t *pxIOManager, FF_FindParams_t *findParams );
FF_Error_t FF_CreateDirent( FF_IOManager_t *pxIOManager, FF_FindParams_t *findParams, FF_DirEnt_t *pxDirent );
FF_Error_t FF_ExtendDirectory( FF_IOManager_t *pxIOManager, uint32_t ulDirCluster );
FF_Error_t FF_RmLFNs( FF_IOManager_t *pxIOManager, uint16_t usDirEntry, FF_FetchContext_t *pContext );
#if( ffconfigHASH_CACHE != 0 )
BaseType_t FF_CheckDirentHash( FF_IOManager_t *pxIOManager, uint32_t ulDirCluster, uint32_t ulHash );
BaseType_t FF_DirHashed( FF_IOManager_t *pxIOManager, uint32_t ulDirCluster );
void FF_AddDirentHash( FF_IOManager_t *pxIOManager, uint32_t ulDirCluster, uint32_t ulHash );
FF_Error_t FF_HashDir( FF_IOManager_t *pxIOManager, uint32_t ulDirCluster );
void FF_UnHashDir( FF_IOManager_t *pxIOManager, uint32_t ulDirCluster );
#endif
struct SBuffStats {
unsigned sectorMatch;
unsigned sectorMiss;
unsigned bufCounts;
unsigned bufCalls;
};
extern struct SBuffStats buffStats;
#endif
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