Projects/TemperatureDataLogger/Lib/FATFs/diskio.c

   1 /*-----------------------------------------------------------------------*/
   2 /* Low level disk I/O module skeleton for FatFs     (C)ChaN, 2007        */
   3 /*-----------------------------------------------------------------------*/
   4 /* This is a stub disk I/O module that acts as front end of the existing */
   5 /* disk I/O modules and attach it to FatFs module with common interface. */
   6 /*-----------------------------------------------------------------------*/
   7
   8 #include "diskio.h"
   9
  10 /*-----------------------------------------------------------------------*/
  11 /* Inidialize a Drive                                                    */
  12
  13 DSTATUS disk_initialize (
  14         BYTE drv                                /* Physical drive nmuber (0..) */
  15 )
  16 {
  17         return FR_OK;
  18 }
  19
  20
  21
  22 /*-----------------------------------------------------------------------*/
  23 /* Return Disk Status                                                    */
  24
  25 DSTATUS disk_status (
  26         BYTE drv                /* Physical drive nmuber (0..) */
  27 )
  28 {
  29         return FR_OK;
  30 }
  31
  32
  33
  34 /*-----------------------------------------------------------------------*/
  35 /* Read Sector(s)                                                        */
  36
  37 DRESULT disk_read (
  38         BYTE drv,               /* Physical drive nmuber (0..) */
  39         BYTE *buff,             /* Data buffer to store read data */
  40         DWORD sector,   /* Sector address (LBA) */
  41         BYTE count              /* Number of sectors to read (1..255) */
  42 )
  43 {
  44         DataflashManager_ReadBlocks_RAM(sector, count, buff);
  45         return RES_OK;
  46 }
  47
  48
  49
  50 /*-----------------------------------------------------------------------*/
  51 /* Write Sector(s)                                                       */
  52
  53 #if _READONLY == 0
  54 DRESULT disk_write (
  55         BYTE drv,                       /* Physical drive nmuber (0..) */
  56         const BYTE *buff,       /* Data to be written */
  57         DWORD sector,           /* Sector address (LBA) */
  58         BYTE count                      /* Number of sectors to write (1..255) */
  59 )
  60 {
  61         DataflashManager_WriteBlocks_RAM(sector, count, buff);
  62         return RES_OK;
  63 }
  64 #endif /* _READONLY */
  65
  66
  67
  68 /*-----------------------------------------------------------------------*/
  69 /* Miscellaneous Functions                                               */
  70
  71 DRESULT disk_ioctl (
  72         BYTE drv,               /* Physical drive nmuber (0..) */
  73         BYTE ctrl,              /* Control code */
  74         void *buff              /* Buffer to send/receive control data */
  75 )
  76 {
  77         if (ctrl == CTRL_SYNC)
  78           return RES_OK;
  79         else
  80           return RES_PARERR;
  81 }
  82
  83
  84 DWORD get_fattime (void)
  85 {
  86         uint8_t Day,  Month,  Year;
  87         uint8_t Hour, Minute, Second;
  88
  89         DS1307_GetDate(&Day,  &Month,  &Year);
  90         DS1307_GetTime(&Hour, &Minute, &Second);
  91
  92
  93         return ((DWORD)(20 + Year) << 25) |
  94                      ((DWORD)Month << 21) |
  95                        ((DWORD)Day << 16) |
  96                       ((DWORD)Hour << 11) |
  97                      ((DWORD)Minute << 5) |
  98               (((DWORD)Second >> 1) << 0);
  99 }