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micropython/drivers/cc3100/src/fs.c

425 wiersze
13 KiB
C
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/*
* fs.c - CC31xx/CC32xx Host Driver Implementation
*
* Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
*
*
* 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.
*
*/
/*****************************************************************************/
/* Include files */
/*****************************************************************************/
#include "simplelink.h"
#include "protocol.h"
#include "driver.h"
/*****************************************************************************/
/* Macro declarations */
/*****************************************************************************/
#define sl_min(a,b) (((a) < (b)) ? (a) : (b))
#define MAX_NVMEM_CHUNK_SIZE 1460
/*****************************************************************************/
/* Internal functions */
/*****************************************************************************/
/*****************************************************************************/
/* _sl_Strlen */
/*****************************************************************************/
_u16 _sl_Strlen(const _u8 *buffer)
{
_u16 len = 0;
if( buffer != NULL )
{
while(*buffer++) len++;
}
return len;
}
/*****************************************************************************/
/* _sl_GetCreateFsMode */
/*****************************************************************************/
_u32 _sl_GetCreateFsMode(_u32 maxSizeInBytes,_u32 accessFlags)
{
_u32 granIdx = 0;
_u32 granNum = 0;
_u32 granTable[_FS_MAX_MODE_SIZE_GRAN] = {256,1024,4096,16384,65536};
for(granIdx= _FS_MODE_SIZE_GRAN_256B ;granIdx< _FS_MAX_MODE_SIZE_GRAN;granIdx++)
{
if( granTable[granIdx]*255 >= maxSizeInBytes )
break;
}
granNum = maxSizeInBytes/granTable[granIdx];
if( maxSizeInBytes % granTable[granIdx] != 0 )
granNum++;
return _FS_MODE(_FS_MODE_OPEN_WRITE_CREATE_IF_NOT_EXIST, granIdx, granNum, accessFlags);
}
/*****************************************************************************/
/* API functions */
/*****************************************************************************/
/*****************************************************************************/
/* sl_FsOpen */
/*****************************************************************************/
typedef union
{
_FsOpenCommand_t Cmd;
_FsOpenResponse_t Rsp;
}_SlFsOpenMsg_u;
#if _SL_INCLUDE_FUNC(sl_FsOpen)
const _SlCmdCtrl_t _SlFsOpenCmdCtrl =
{
SL_OPCODE_NVMEM_FILEOPEN,
sizeof(_FsOpenCommand_t),
sizeof(_FsOpenResponse_t)
};
_i32 sl_FsOpen(const _u8 *pFileName,const _u32 AccessModeAndMaxSize, _u32 *pToken,_i32 *pFileHandle)
{
_SlReturnVal_t RetVal;
_SlFsOpenMsg_u Msg;
_SlCmdExt_t CmdExt;
CmdExt.TxPayloadLen = (_sl_Strlen(pFileName)+4) & (~3); /* add 4: 1 for NULL and the 3 for align */
CmdExt.RxPayloadLen = 0;
CmdExt.pTxPayload = (_u8*)pFileName;
CmdExt.pRxPayload = NULL;
Msg.Cmd.Mode = AccessModeAndMaxSize;
if(pToken != NULL)
{
Msg.Cmd.Token = *pToken;
}
else
{
Msg.Cmd.Token = 0;
}
RetVal = _SlDrvCmdOp((_SlCmdCtrl_t *)&_SlFsOpenCmdCtrl, &Msg, &CmdExt);
*pFileHandle = Msg.Rsp.FileHandle;
if (pToken != NULL)
{
*pToken = Msg.Rsp.Token;
}
/* in case of an error, return the erros file handler as an error code */
if( *pFileHandle < 0 )
{
return *pFileHandle;
}
return (_i32)RetVal;
}
#endif
/*****************************************************************************/
/* sl_FsClose */
/*****************************************************************************/
typedef union
{
_FsCloseCommand_t Cmd;
_BasicResponse_t Rsp;
}_SlFsCloseMsg_u;
#if _SL_INCLUDE_FUNC(sl_FsClose)
const _SlCmdCtrl_t _SlFsCloseCmdCtrl =
{
SL_OPCODE_NVMEM_FILECLOSE,
sizeof(_FsCloseCommand_t),
sizeof(_FsCloseResponse_t)
};
_i16 sl_FsClose(const _i32 FileHdl, const _u8* pCeritificateFileName,const _u8* pSignature ,const _u32 SignatureLen)
{
_SlFsCloseMsg_u Msg = {{0, 0}};
_SlCmdExt_t ExtCtrl;
Msg.Cmd.FileHandle = FileHdl;
if( pCeritificateFileName != NULL )
{
Msg.Cmd.CertificFileNameLength = (_sl_Strlen(pCeritificateFileName)+4) & (~3); /* add 4: 1 for NULL and the 3 for align */
}
Msg.Cmd.SignatureLen = SignatureLen;
ExtCtrl.TxPayloadLen = ((SignatureLen+3) & (~3)); /* align */
ExtCtrl.pTxPayload = (_u8*)pSignature;
ExtCtrl.RxPayloadLen = (_i16)Msg.Cmd.CertificFileNameLength;
ExtCtrl.pRxPayload = (_u8*)pCeritificateFileName; /* Add signature */
if(ExtCtrl.pRxPayload != NULL && ExtCtrl.RxPayloadLen != 0)
{
ExtCtrl.RxPayloadLen = ExtCtrl.RxPayloadLen * (-1);
}
VERIFY_RET_OK(_SlDrvCmdOp((_SlCmdCtrl_t *)&_SlFsCloseCmdCtrl, &Msg, &ExtCtrl));
return (_i16)((_i16)Msg.Rsp.status);
}
#endif
/*****************************************************************************/
/* sl_FsRead */
/*****************************************************************************/
typedef union
{
_FsReadCommand_t Cmd;
_FsReadResponse_t Rsp;
}_SlFsReadMsg_u;
#if _SL_INCLUDE_FUNC(sl_FsRead)
const _SlCmdCtrl_t _SlFsReadCmdCtrl =
{
SL_OPCODE_NVMEM_FILEREADCOMMAND,
sizeof(_FsReadCommand_t),
sizeof(_FsReadResponse_t)
};
_i32 sl_FsRead(const _i32 FileHdl,_u32 Offset, _u8* pData,_u32 Len)
{
_SlFsReadMsg_u Msg;
_SlCmdExt_t ExtCtrl;
_u16 ChunkLen;
_SlReturnVal_t RetVal =0;
_i32 RetCount = 0;
ExtCtrl.TxPayloadLen = 0;
ExtCtrl.pTxPayload = NULL;
ChunkLen = (_u16)sl_min(MAX_NVMEM_CHUNK_SIZE,Len);
ExtCtrl.RxPayloadLen = ChunkLen;
ExtCtrl.pRxPayload = (_u8 *)(pData);
Msg.Cmd.Offset = Offset;
Msg.Cmd.Len = ChunkLen;
Msg.Cmd.FileHandle = FileHdl;
do
{
RetVal = _SlDrvCmdOp((_SlCmdCtrl_t *)&_SlFsReadCmdCtrl, &Msg, &ExtCtrl);
if(SL_OS_RET_CODE_OK == RetVal)
{
if( Msg.Rsp.status < 0)
{
if( RetCount > 0)
{
return RetCount;
}
else
{
return Msg.Rsp.status;
}
}
RetCount += (_i32)Msg.Rsp.status;
Len -= ChunkLen;
Offset += ChunkLen;
Msg.Cmd.Offset = Offset;
ExtCtrl.pRxPayload += ChunkLen;
ChunkLen = (_u16)sl_min(MAX_NVMEM_CHUNK_SIZE,Len);
ExtCtrl.RxPayloadLen = ChunkLen;
Msg.Cmd.Len = ChunkLen;
Msg.Cmd.FileHandle = FileHdl;
}
else
{
return RetVal;
}
}while(ChunkLen > 0);
return (_i32)RetCount;
}
#endif
/*****************************************************************************/
/* sl_FsWrite */
/*****************************************************************************/
typedef union
{
_FsWriteCommand_t Cmd;
_FsWriteResponse_t Rsp;
}_SlFsWriteMsg_u;
#if _SL_INCLUDE_FUNC(sl_FsWrite)
const _SlCmdCtrl_t _SlFsWriteCmdCtrl =
{
SL_OPCODE_NVMEM_FILEWRITECOMMAND,
sizeof(_FsWriteCommand_t),
sizeof(_FsWriteResponse_t)
};
_i32 sl_FsWrite(const _i32 FileHdl,_u32 Offset, _u8* pData,_u32 Len)
{
_SlFsWriteMsg_u Msg;
_SlCmdExt_t ExtCtrl;
_u16 ChunkLen;
_SlReturnVal_t RetVal;
_i32 RetCount = 0;
ExtCtrl.RxPayloadLen = 0;
ExtCtrl.pRxPayload = NULL;
ChunkLen = (_u16)sl_min(MAX_NVMEM_CHUNK_SIZE,Len);
ExtCtrl.TxPayloadLen = ChunkLen;
ExtCtrl.pTxPayload = (_u8 *)(pData);
Msg.Cmd.Offset = Offset;
Msg.Cmd.Len = ChunkLen;
Msg.Cmd.FileHandle = FileHdl;
do
{
RetVal = _SlDrvCmdOp((_SlCmdCtrl_t *)&_SlFsWriteCmdCtrl, &Msg, &ExtCtrl);
if(SL_OS_RET_CODE_OK == RetVal)
{
if( Msg.Rsp.status < 0)
{
if( RetCount > 0)
{
return RetCount;
}
else
{
return Msg.Rsp.status;
}
}
RetCount += (_i32)Msg.Rsp.status;
Len -= ChunkLen;
Offset += ChunkLen;
Msg.Cmd.Offset = Offset;
ExtCtrl.pTxPayload += ChunkLen;
ChunkLen = (_u16)sl_min(MAX_NVMEM_CHUNK_SIZE,Len);
ExtCtrl.TxPayloadLen = ChunkLen;
Msg.Cmd.Len = ChunkLen;
Msg.Cmd.FileHandle = FileHdl;
}
else
{
return RetVal;
}
}while(ChunkLen > 0);
return (_i32)RetCount;
}
#endif
/*****************************************************************************/
/* sl_FsGetInfo */
/*****************************************************************************/
typedef union
{
_FsGetInfoCommand_t Cmd;
_FsGetInfoResponse_t Rsp;
}_SlFsGetInfoMsg_u;
#if _SL_INCLUDE_FUNC(sl_FsGetInfo)
const _SlCmdCtrl_t _SlFsGetInfoCmdCtrl =
{
SL_OPCODE_NVMEM_FILEGETINFOCOMMAND,
sizeof(_FsGetInfoCommand_t),
sizeof(_FsGetInfoResponse_t)
};
_i16 sl_FsGetInfo(const _u8 *pFileName,const _u32 Token,SlFsFileInfo_t* pFsFileInfo)
{
_SlFsGetInfoMsg_u Msg;
_SlCmdExt_t CmdExt;
CmdExt.TxPayloadLen = (_sl_Strlen(pFileName)+4) & (~3); /* add 4: 1 for NULL and the 3 for align */
CmdExt.RxPayloadLen = 0;
CmdExt.pTxPayload = (_u8*)pFileName;
CmdExt.pRxPayload = NULL;
Msg.Cmd.Token = Token;
VERIFY_RET_OK(_SlDrvCmdOp((_SlCmdCtrl_t *)&_SlFsGetInfoCmdCtrl, &Msg, &CmdExt));
pFsFileInfo->flags = Msg.Rsp.flags;
pFsFileInfo->FileLen = Msg.Rsp.FileLen;
pFsFileInfo->AllocatedLen = Msg.Rsp.AllocatedLen;
pFsFileInfo->Token[0] = Msg.Rsp.Token[0];
pFsFileInfo->Token[1] = Msg.Rsp.Token[1];
pFsFileInfo->Token[2] = Msg.Rsp.Token[2];
pFsFileInfo->Token[3] = Msg.Rsp.Token[3];
return (_i16)((_i16)Msg.Rsp.Status);
}
#endif
/*****************************************************************************/
/* sl_FsDel */
/*****************************************************************************/
typedef union
{
_FsDeleteCommand_t Cmd;
_FsDeleteResponse_t Rsp;
}_SlFsDeleteMsg_u;
#if _SL_INCLUDE_FUNC(sl_FsDel)
const _SlCmdCtrl_t _SlFsDeleteCmdCtrl =
{
SL_OPCODE_NVMEM_FILEDELCOMMAND,
sizeof(_FsDeleteCommand_t),
sizeof(_FsDeleteResponse_t)
};
_i16 sl_FsDel(const _u8 *pFileName,const _u32 Token)
{
_SlFsDeleteMsg_u Msg;
_SlCmdExt_t CmdExt;
CmdExt.TxPayloadLen = (_sl_Strlen(pFileName)+4) & (~3); /* add 4: 1 for NULL and the 3 for align */
CmdExt.RxPayloadLen = 0;
CmdExt.pTxPayload = (_u8*)pFileName;
CmdExt.pRxPayload = NULL;
Msg.Cmd.Token = Token;
VERIFY_RET_OK(_SlDrvCmdOp((_SlCmdCtrl_t *)&_SlFsDeleteCmdCtrl, &Msg, &CmdExt));
return (_i16)((_i16)Msg.Rsp.status);
}
#endif
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