file_api.h

基于LPC2468处理器的源代码

/*
**************************************************************************************************************
*                                                  uC-USBH
*                                               USB Host Stack
*
*                                (c) Copyright 2008, OnChip  Technologies LLC
*                                             All Rights Reserved
*
*                                               www.onchiptech.com
*
* LICENSING TERMS:
*
*   This software is protected by international copyright laws. Knowledge of the source code may not be used to
*   write a similar product. This file may only be used in accordance with a license and should not be
*   redistributed in any way.  We appreciate your understanding, fairness and honesty.
*
*   This material or any other copies thereof may not be provided or otherwise made available to any other
*   person without written permission by Onchip Technologies. Its receipt and/or possession does
*   not convey any right to alter, reproduce, disclose, transmit, manufacture, use or sell anything it may
*   describe.
*
* File           : file_api.h
* Programmer(s)  : Ravikanth.P
* Version        : V1.00
*
**************************************************************************************************************
*/

#if      !defined(FILE_API_H)
#define           FILE_API_H

/*
**************************************************************************************************************
*                                         INCLUDE FILES
**************************************************************************************************************
*/

#include  "ot_types.h"

/*
**************************************************************************************************************
*                                          DEFINITIONS
**************************************************************************************************************
*/


#define    RDONLY                                 1
#define    RDWR                                   2

/*
**************************************************************************************************************
*                                        TYPE DEFINITIONS
**************************************************************************************************************
*/

typedef  struct  file_nav {
    CPU_INT32U  EntClus;
    CPU_INT32U  EntClusOff;
    CPU_INT08U  NbrEnt;
    CPU_INT32U  PartHandle;
    CPU_INT32U  DataClus;
    CPU_INT08U  FileAttr;
} FILE_NAV;

typedef  struct  file_info {
    CPU_INT08U  DIR_Lfn[256];             /* Long file name                                                 */
    CPU_INT08U  DIR_Sfn[13];              /* Short file name                                                */
    CPU_INT08U  DIR_Attr;                 /* Attributes                                                     */
    CPU_INT08U  DIR_NTRes;                /* Reserved for NT                                                */
    CPU_INT08U  DIR_CrtTimeTenth;         /* Time stamp in milli seconds                                    */
    CPU_INT16U  DIR_CrtTime;              /* Time file was created                                          */
    CPU_INT16U  DIR_CrtDate;              /* Date file was created                                          */
    CPU_INT16U  DIR_LstAccDate;           /* Last access date                                               */
    CPU_INT16U  DIR_FstClusHI;            /* High word of the starting cluster                              */
    CPU_INT16U  DIR_WrtTime;              /* Time of last write                                             */
    CPU_INT16U  DIR_WrtDate;              /* Date of last write                                             */
    CPU_INT16U  DIR_FstClusLO;            /* Low  word of the starting cluster                              */
    CPU_INT32U  DIR_FileSize;             /* File size                                                      */
} FILE_INFO;



/*
**************************************************************************************************************
*                                  FILE SYSTEM API FUNCTION PROTOTYPES
**************************************************************************************************************
*/

CPU_INT08U  FS_IsDevConn  (void);

CPU_INT32U  FILE_Open     (CPU_INT08U  *file_path,
                           CPU_INT32U   mode,
                           CPU_INT32S  *err);

CPU_INT32U  FILE_Read     (CPU_INT32U   fd,
                           CPU_INT08U  *buff,
                           CPU_INT32U   bytes_to_read,
                           CPU_INT32S  *err);

CPU_INT32U  FILE_Write    (CPU_INT32U   fd,
                           CPU_INT08U  *wrt_buf,
                           CPU_INT32U   byts_to_wrt,
                           CPU_INT32S  *err);

void        FILE_Close    (CPU_INT32U   file_des);

CPU_INT32S  FILE_Del      (CPU_INT08U  *file_path);

CPU_INT32S  FILE_CreatDir (CPU_INT08U  *file_path);
CPU_INT32S  FILE_DelDir   (CPU_INT08U  *file_path);

CPU_INT32S  FILE_NavStart (CPU_INT08U  *file_path,
                           FILE_NAV    *file_nav);

CPU_INT32S  FILE_NavChild (FILE_NAV    *parent_nav,
                           FILE_NAV    *child_nav);

CPU_INT32S  FILE_NavNxt   (FILE_NAV    *file_nav,
                           FILE_NAV    *nxt_nav);

CPU_INT32S  FILE_GetInfo  (FILE_NAV    *file_nav,
                           FILE_INFO   *file_info);

void        FILE_PrintInfo(FILE_INFO   *file_info);

void        FILE_NavCpy   (FILE_NAV    *dest_nav,
                           FILE_NAV    *src_nav);

#endif