www.pudn.com > tfs.rar > tfsprivate.h
/* tfsprivate.h:
* Header file for TFS used only by the monitor code.
*
* General notice:
* This code is part of a boot-monitor package developed as a generic base
* platform for embedded system designs. As such, it is likely to be
* distributed to various projects beyond the control of the original
* author. Please notify the author of any enhancements made or bugs found
* so that all may benefit from the changes. In addition, notification back
* to the author will allow the new user to pick up changes that may have
* been made by other users after this version of the code was distributed.
*
* Note1: the majority of this code was edited with 4-space tabs.
* Note2: as more and more contributions are accepted, the term "author"
* is becoming a mis-representation of credit.
*
* Original author: Ed Sutter
* Email: esutter@lucent.com
* Phone: 908-582-2351
*/
#ifndef _tfsprivate_h
#define _tfsprivate_h
#define SANITY 0xBEEF
#define ERASED16 0xFFFF
#define ERASED32 0xFFFFFFFF
#define TFS_MAXOPEN 10 /* Maximum of 10 open files */
#define TFS_QRYTMOUT 100000 /* Timeout for QRYBRUN */
#define TFS_FSIZEMOD 16 /* File size must be a multiple of this value */
#define MINUSRLEVEL 0 /* Minimum user level supported. */
#define MAXUSRLEVEL 3 /* Maximum user level supported. */
#define TFSHDRVERSION 1 /* Increment this if TFS header changes. */
#if TFS_EBIN_COFF
#define TFS_EBIN_NAME "coff"
#elif TFS_EBIN_AOUT
#define TFS_EBIN_NAME "aout"
#elif TFS_EBIN_ELF
#define TFS_EBIN_NAME "elf"
#else
#define TFS_EBIN_NAME "NA"
#endif
/* Two different types of Defragmentation tests:
* sector erase and flash write.
*/
#define DEFRAG_TEST_SERASE 1
#define DEFRAG_TEST_FWRITE 2
#define DEFRAG_TEST_EXIT 3
/* Masks used to allow flags and modes to be part of the same long word. */
#define TFS_FLAGMASK 0x0000ffff
#define TFS_MODEMASK 0xffff0000
/* Definitions related to tfslog: */
#define TFSLOG_ADD 0
#define TFSLOG_DEL 1
#define TFSLOG_IPM 2
#define TFSLOG_ON 3
#define TFSLOG_OFF 4
#define TIME_UNDEFINED 0xffffffff
/* Used by tfsscript.. */
#define EXIT_SCRIPT 1
#define REMOVE_SCRIPT 2
/* Device Table structure and definitions:
* The Device table is typically only one entry in length. It is defined
* on a per-target basis in the file tfsdev.h. In the simplest case, the
* table in tfsdev.h has all of the information in it. This is fine as long
* as there is no need to support different devices with the same monitor
* binary. To support the ability to have a device-table that is constructed
* based on the type of flash on-board, the TFS_DEVINFO_DYNAMIC bit must
* be set in the devinfo member of tfsdevtbl (in tfsdev.h). This tells TFS
* to figure out the addresses based on a few assumptions...
* * Regardless of the device type, the start address will be the same.
* * The spare sector starts immediately after the end of TFS storage space.
* In dynamic mode, all that needs to be specified in the tfsdevtbl of
* tfsdev.h is a prefix, start and devinfo fields. The other fields will
* be built based on information taken from the flash interface.
* One important note: if there is a block of contiguous flash space that
* spans accross multiple flash banks, then the bank # of the LAST bank in
* that block is what should be specified in the devinfo BANKMASK field.
*/
#define TFSEOT 0xffffffff
#define TDEV struct tfsdev
#define TFS_DEVTYPE_RAM 0x00001000
#define TFS_DEVTYPE_FLASH 0x00002000
#define TFS_DEVTYPE_MASK 0x0000f000
#define TFS_DEVINFO_DYNAMIC 0x00000800
#define TFS_DEVINFO_BANKMASK 0x000007ff
#define TFSDEVTOT ((sizeof(tfsdevtbl))/(sizeof(struct tfsdev)))
struct tfsdev {
char *prefix; /* Device name prefix. */
unsigned long start; /* First location into which TFS can */
/* begin to store files. */
unsigned long end; /* Last address into which TFS can */
/* place file data. This is usually */
/* one unit below the start of the */
/* spare sector. */
unsigned long spare; /* Start address of device spare */
/* sector. */
unsigned long sparesize; /* Size of device spare sector. */
unsigned long sectorcount; /* Number of sectors in this device. */
unsigned long devinfo; /* RAM or FLASH, etc... */
};
/* TFS defragmentation header:
* This header is used during defragmentation to record the state of the
* files in flash prior to the start of the defragmentation process.
*/
struct defraghdr {
struct tfshdr *ohdr; /* Original location of header. */
struct tfshdr *nextfile; /* Location of next file. */
long filsize; /* Size of file. */
unsigned long crc; /* 32 bit crc of this header. */
unsigned long ohdrcrc; /* Copy of file's original hdrcrc. */
long idx; /* Index into defrag hdr table. */
long nesn; /* New end sector number. */
long neso; /* New end sector offset. */
long oeso; /* Original end sector offset. */
char *nda; /* New destination address. */
char fname[TFSNAMESIZE+1]; /* Name of file. */
};
/* sectorcrc:
* This structure is used to store the crc of the sectors before and
* after a defragmentation. A table of these structures is built prior
* to startup of any file relocation.
*/
struct sectorcrc {
unsigned long precrc;
unsigned long postcrc;
};
#define DEFRAGHDRSIZ sizeof(struct defraghdr)
#define DEFRAGHDR struct defraghdr
/* States used during defragmentation: */
#define SECTOR_DEFRAG_INACTIVE 1
#define SCANNING_ACTIVE_SECTOR 2
#define SCANNING_ACTIVE_SECTOR_1 3
#define SCANNING_ACTIVE_SECTOR_2 4
#define SCANNING_ACTIVE_SECTOR_3 5
#define SCANNING_ACTIVE_SECTOR_4 6
#define SCANNING_ACTIVE_SECTOR_5 7
#define SECTOR_DEFRAG_ALMOST_DONE 8
#define SECTOR_DEFRAG_ABORT_RESTART 9
/* Different ways in which a file can span across the active sector. */
#define SPANTYPE_UNDEF 0 /* Span type undefined */
#define SPANTYPE_BPEP 1 /* Begin-previous/end-previous */
#define SPANTYPE_BPEC 2 /* Begin-previous/end-current */
#define SPANTYPE_BPEL 3 /* Begin-previous/end-later */
#define SPANTYPE_BCEC 4 /* Begin-current/end-current */
#define SPANTYPE_BCEL 5 /* Begin-current/end-later */
#define SPANTYPE_BLEL 6 /* Begin-later/end-later */
/* struct tfsdat:
Used by TFS to keep track of an opened file.
*/
struct tfsdat {
long offset; /* Current offset into file. */
long hwp; /* High water point for modified file. */
unsigned char *base; /* Base address of file. */
long flagmode; /* Flags & mode file was opened with. */
struct tfshdr hdr; /* File structure. */
};
/* struct tfsdfg, tfsflg & tfserr:
Structures provide an easy means of translation between values and
strings that explain those values.
*/
struct tfsflg {
long flag;
char sdesc;
char *ldesc;
long mask;
};
struct tfserr {
long err;
char *msg;
};
struct tfsdfg {
long state;
char *msg;
};
struct tfsinfo {
int liveftot; /* Number of live files. */
int livedata; /* Space used by living file data. */
int liveovrhd; /* Space used by living file overhead. */
int deadftot; /* Number of dead files. */
int deaddata; /* Space used by dead file data. */
int deadovrhd; /* Space used by dead file overhead. */
int pso; /* Per-sector (not per file) TFS overhead. */
int sos; /* Size of spare sector(s). */
int memtot; /* Total tfs memory space in device(s). */
int memfree; /* Memory space available for new file data. */
int memused; /* Total memory space used by files & overhead. */
int memfordata; /* Total memory available for new file data. */
};
typedef struct tfsinfo TINFO;
/* Extern data: */
extern long tfsTrace;
extern TFILE **tfsAlist;
extern TDEV tfsDeviceTbl[];
extern struct tfsdat tfsSlots[];
extern struct tfsflg tfsflgtbl[];
extern int ScriptExitFlag;
extern int TfsCleanEnable;
extern int DefragTestPoint;
extern int DefragTestType;
extern int DefragTestSector;
/* Extern functions: */
extern int tfseof(int);
extern int tfsinit(void);
extern int _tfsinit(TDEV *);
extern int tfsreorder(void);
extern int tfsrunboot(void);
extern int tfsfixup(int,int);
extern int tfsunlink(char *);
extern int tfslink(char *,char *);
extern int tfsclean_on(void);
extern int tfsclean_off(void);
extern int _tfsunlink(char *);
extern int tfsflasherase(int);
extern int tfsrun(char **,int);
extern int tfscheck(TDEV *,int);
extern int validtfshdr(TFILE *);
extern int tfstruncate(int,long);
extern int tfsclose(int, char *);
extern int tfsscript(TFILE *,int);
extern int tfsseek(int, int, int);
extern int tfsread(int,char *,int);
extern int showTfsError(int,char *);
extern int tfsflasheraseall(TDEV *);
extern int tfsflasherased(TDEV *,int);
extern int tfswrite(int, char *, int);
extern int tfsgetline(int,char *,int);
extern int tfsLogCmd(int,char **,int);
extern int tfsopen(char *,long,char *);
extern int tfsfstat(char *name,TFILE *);
extern int tfsmemuse(TDEV *,TINFO *,int);
extern int tfsipmod(char *,char *,int,int);
extern int tfsloadebin(TFILE *,int,long *,int);
extern int tfsloadebin_l(TFILE *,int,long *,int);
extern int tfsadd(char *,char *,char *,unsigned char *,int);
extern int tfsflashwrite(unsigned long *,unsigned long *,long);
extern int tfsmemset(unsigned char *,unsigned char,int,int,int);
extern int tfsmemcpy(unsigned char *,unsigned char *,int,int,int);
extern int tfsclean(TDEV *,int);
extern int _tfsclean(TDEV *,int,int);
extern int tfsautoclean(TDEV *,int);
extern int (*tfsDocommand)(char *,int);
extern int dumpDhdr(struct defraghdr *), dumpDhdrTbl(struct defraghdr *,int);
extern int dumpFhdr(TFILE *);
extern TDEV *gettfsdev_fromprefix(char *,int);
extern TFILE *tfsnext(TFILE *);
extern TFILE *tfsstat(char *name);
extern TFILE *_tfsstat(char *name,int uselink);
extern TFILE *nextfp(TFILE *,TDEV *);
extern long tfstell(int);
extern long (*tfsGetLtime)(void);
extern long tfsctrl(int,long,long);
extern unsigned long tfshdrcrc(TFILE *);
extern char *tfserrmsg(int);
extern char *tfsflagsbtoa(long,char *);
extern char *(*tfsGetAtime)(long,char *,int);
extern void tfsclear(TDEV *);
extern void gototag(char *);
extern void gosubtag(char *);
extern void gosubret(char *);
extern void exitscript(char *);
extern void tfsstartup(void);
extern void tfslog(int,char *);
extern void tfsFacilityUnavailable(char *);
extern void tfsrunrcfile(void);
#endif