Ilya I
Diff: Fat/usbhost_fat.h
- Revision:
- 0:1802fb31b938
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Fat/usbhost_fat.h Thu Jan 21 01:15:42 2010 +0000
@@ -0,0 +1,146 @@
+/*
+**************************************************************************************************************
+* NXP USB Host Stack
+*
+* (c) Copyright 2008, NXP SemiConductors
+* (c) Copyright 2008, OnChip Technologies LLC
+* All Rights Reserved
+*
+* www.nxp.com
+* www.onchiptech.com
+*
+* File : usbhost_fat.h
+* Programmer(s) : Ravikanth.P
+* Version :
+*
+**************************************************************************************************************
+*/
+
+#ifndef USBHOST_FAT_H
+#define USBHOST_FAT_H
+
+/*
+**************************************************************************************************************
+* INCLUDE HEADER FILES
+**************************************************************************************************************
+*/
+
+#include "usbhost_inc.h"
+
+/*
+**************************************************************************************************************
+* FAT DEFINITIONS
+**************************************************************************************************************
+*/
+
+#define FAT_16 1
+
+#define LAST_ENTRY 1
+#define FREE_ENTRY 2
+#define LFN_ENTRY 3
+#define SFN_ENTRY 4
+
+#define RDONLY 1
+#define RDWR 2
+
+/*
+**************************************************************************************************************
+* TYPE DEFINITIONS
+**************************************************************************************************************
+*/
+
+typedef struct boot_sec {
+ USB_INT32U BootSecOffset; /* Offset of the boot sector from sector 0 */
+ USB_INT16U BytsPerSec; /* Bytes per sector */
+ USB_INT08U SecPerClus; /* Sectors per cluster */
+ USB_INT32U BytsPerClus; /* Bytes per cluster */
+ USB_INT16U RsvdSecCnt; /* Reserved sector count */
+ USB_INT08U NumFATs; /* Number of FAT copies */
+ USB_INT16U RootEntCnt; /* Root entry count */
+ USB_INT16U TotSec16; /* Total sectors in the disk. !=0 if TotSec32 = 0 */
+ USB_INT32U TotSec32; /* Total sectors in the disk. !=0 if TotSec16 = 0 */
+ USB_INT16U FATSz16; /* Sectors occupied by single FAT table */
+ USB_INT08U FATType; /* File system type */
+ USB_INT32U RootDirSec; /* Sectors occupied by root directory */
+ USB_INT32U RootDirStartSec; /* Starting sector of the root directory */
+ USB_INT32U FirstDataSec; /* Starting sector of the first data cluster */
+} BOOT_SEC;
+
+typedef struct file_entry {
+ USB_INT32U FileSize; /* Total size of the file */
+ USB_INT16U CurrClus; /* Current cluster of the cluster offset */
+ USB_INT32U CurrClusOffset; /* Current cluster offset */
+ USB_INT32U EntrySec; /* Sector where the file entry is located */
+ USB_INT32U EntrySecOffset; /* Offset in the entry sector from where the file is located */
+ USB_INT08U FileStatus; /* File's open status */
+} FILE_ENTRY;
+
+/*
+**************************************************************************************************************
+* FUNCTION PROTOTYPES
+**************************************************************************************************************
+*/
+
+USB_INT32S FAT_Init (void);
+
+USB_INT08U FAT_GetFATType (void);
+void PrintBootSec (void);
+
+USB_INT32S FILE_Open ( USB_INT08U *file_name,
+ USB_INT08U flags);
+
+USB_INT32S FAT_FindEntry ( USB_INT08U *ent_name_given,
+ FILE_ENTRY *entry);
+
+void FAT_GetSFN (volatile USB_INT08U *entry,
+ USB_INT08U *name);
+
+void FAT_GetSfnName (volatile USB_INT08U *entry,
+ USB_INT08U *name);
+
+void FAT_GetSfnExt (volatile USB_INT08U *entry,
+ USB_INT08U *ext_ptr);
+
+USB_INT32S FAT_StrCaseCmp ( USB_INT08U *str1,
+ USB_INT08U *str2);
+
+USB_INT32U FAT_ChkEntType (volatile USB_INT08U *ent);
+
+USB_INT32U FAT_ClusRead ( USB_INT16U curr_clus,
+ USB_INT32U clus_offset,
+ volatile USB_INT08U *buffer,
+ USB_INT32U num_bytes);
+
+USB_INT32U FILE_Read ( USB_INT32S fd,
+ volatile USB_INT08U *buffer,
+ USB_INT32U num_bytes);
+USB_INT16U FAT_GetNextClus ( USB_INT16U clus_no);
+
+USB_INT32U FAT_ClusWrite ( USB_INT16U curr_clus,
+ USB_INT32U clus_offset,
+ volatile USB_INT08U *buffer,
+ USB_INT32U num_bytes);
+USB_INT32U FILE_Write ( USB_INT32S fd,
+ volatile USB_INT08U *buffer,
+ USB_INT32U num_bytes);
+
+void FAT_UpdateEntry ( FILE_ENTRY *entry);
+
+void FAT_UpdateFAT ( USB_INT16U curr_clus,
+ USB_INT16U value);
+
+USB_INT16U FAT_GetFreeClus (void);
+
+USB_INT32S FAT_GetFreeEntry( FILE_ENTRY *entry);
+
+void FAT_PutSFN ( USB_INT08U *ent_name_given,
+ FILE_ENTRY *entry);
+
+USB_INT32S FAT_CreateEntry ( USB_INT08U *ent_name_given,
+ FILE_ENTRY *entry);
+
+void FILE_Close ( USB_INT32S fd);
+
+USB_INT16U FAT_GetEndClus ( USB_INT16U clus_no);
+
+#endif