filelib.h

00001 #ifndef filelib
00002 #define filelib
00003 
00004 #include "mbed.h"
00005 #include <time.h>
00006 #include <ff.h> //found in lib SDFileSystem->FATFileSystem/ChaN
00007 #include "SDFileSystem.h"
00008 
00009 
00010 /*
00011 typedef enum {
00012     FR_OK = 0,              // (0) Succeeded
00013     FR_DISK_ERR,            // (1) A hard error occurred in the low level disk I/O layer
00014     FR_INT_ERR,             // (2) Assertion failed
00015     FR_NOT_READY,           // (3) The physical drive cannot work
00016     FR_NO_FILE,             // (4) Could not find the file
00017     FR_NO_PATH,             // (5) Could not find the path
00018     FR_INVALID_NAME,        // (6) The path name format is invalid
00019     FR_DENIED,              // (7) Access denied due to prohibited access or directory full
00020     FR_EXIST,               // (8) Access denied due to prohibited access
00021     FR_INVALID_OBJECT,      // (9) The file/directory object is invalid
00022     FR_WRITE_PROTECTED,     // (10) The physical drive is write protected
00023     FR_INVALID_DRIVE,       // (11) The logical drive number is invalid
00024     FR_NOT_ENABLED,         // (12) The volume has no work area
00025     FR_NO_FILESYSTEM,       // (13) There is no valid FAT volume
00026     FR_MKFS_ABORTED,        // (14) The f_mkfs() aborted due to any parameter error
00027     FR_TIMEOUT,             // (15) Could not get a grant to access the volume within defined period
00028     FR_LOCKED,              // (16) The operation is rejected according to the file sharing policy
00029     FR_NOT_ENOUGH_CORE,     // (17) LFN working buffer could not be allocated
00030     FR_TOO_MANY_OPEN_FILES, // (18) Number of open files > _FS_SHARE
00031     FR_INVALID_PARAMETER    // (19) Given parameter is invalid
00032 } FRESULT;
00033 
00034 */
00035 /*
00036 mode_t values in octal
00037        S_IFREG       0100000
00038        S_IFDIR        040000
00039        S_IRUSR          0400    read permission, owner
00040        S_IWUSR          0200    write permission, owner
00041        S_IXUSR          0100    execute/search permission, owner
00042        S_IRGRP           040    read permission, group
00043        S_IWGRP           020    write permission, group
00044        S_IXGRP           010    execute/search permission, group
00045        S_IROTH            04    read permission, others
00046        S_IWOTH            02    write permission, others
00047        S_IXOTH            01    execute/search permission, others
00048 */
00049 struct sMystat {
00050 //               dev_t     st_dev;     /* ID of device containing file */
00051 //               ino_t     st_ino;     /* inode number */
00052     mode_t    st_mode;    /* protection */
00053 //               nlink_t   st_nlink;   /* number of hard links */
00054 //               uid_t     st_uid;     /* user ID of owner */
00055 //               gid_t     st_gid;     /* group ID of owner */
00056 //               dev_t     st_rdev;    /* device ID (if special file) */
00057     //        off_t     st_size;    /* total size, in bytes */
00058     DWORD     st_size;    /* total size, in bytes */
00059 //               blksize_t st_blksize; /* blocksize for file system I/O */
00060 //               blkcnt_t  st_blocks;  /* number of 512B blocks allocated */
00061 //               time_t    st_atime;   /* time of last access */
00062     time_t    st_mtime;   /* time of last modification */
00063 //               time_t    st_ctime;   /* time of last status change */
00064 };
00065 
00066 sMystat myStatBuf;  //store info for file
00067 FILINFO finfo;      //global file info struct see ff.h
00068 FATFS_DIR dinfo;    //global directoty info struct see ff.h
00069 
00070 FRESULT get_fileInfo(const char *path)  //use finfo for get result fields
00071 {
00072     FRESULT res = f_stat(path,&finfo);    /* Get file status */
00073     if (EnDebugMSG)
00074         if (res)
00075             printf("\r\n-->get_fileInfo:%s ,res=%d ,Not Found!",path,res);
00076         else
00077             printf("\r\n-->get_fileInfo:%s ,res=%d ,Found!",path,res);
00078     return res;
00079 }
00080 
00081 FRESULT get_dirInfo(const char *path)
00082 {
00083     FRESULT res= f_opendir (&dinfo,path);   /* FR_OK(0): successful, !=0: error code */
00084     if (EnDebugMSG)
00085         if (res)
00086             printf("\r\n-->get_dirInfo :%s res=%d ,This is Not Directory!",path,res);
00087         else
00088             printf("\r\n-->get_dirInfo :%s res=%d ,This is Directory!",path,res);
00089     return res;
00090 }
00091 
00092 FRESULT Mystat(const char *path, struct sMystat *buf)
00093 {
00094     FRESULT res = f_stat(path,&finfo);    /* Get file status */
00095     if (res == FR_OK) {
00096         buf->st_size = finfo.fsize;
00097         buf->st_mtime = finfo.ftime;    //fdate;
00098         buf->st_mode = 4;   //?
00099     }
00100     if (EnDebugMSG)
00101         printf("\r\n--Mystat Path:%s ,filesize:%14lld ,res=%d",path, buf->st_size, res);
00102     return res;
00103 }
00104 
00105 
00106 static char* get_mime_type( char* filename )
00107 {
00108     char* extension;
00109     extension = strrchr( filename, '.' );   //get string after last .
00110     if (EnDebugMSG)
00111         printf("\r\n-->get_mime_tipe filename:%s, extension:%s",filename, extension);
00112     if (extension !=NULL) {
00113         if (strcasecmp(extension,".htm")==0  || strcasecmp(extension,".html") ==0)
00114             return "text/html; charset=iso-8859-1";
00115         if (strcasecmp(extension,".png")==0)
00116             return "image/png";
00117         if (strcasecmp(extension,".css")==0)
00118             return "text/css";
00119         if (strcasecmp(extension,".gif")==0)
00120             return "image/gif";
00121         if (strcasecmp(extension,".jpg")==0 || strcasecmp(extension,".jpeg" )==0)
00122             return "image/jpeg";
00123     }
00124     return "text/plain; charset=iso-8859-1";
00125 }
00126 
00127 #endif