[mirror_ubuntu-zesty-kernel.git] / include / mtd / nftl-user.h

/*
 * Parts of NFTL headers shared with userspace
 *
 */

#ifndef __MTD_NFTL_USER_H__
#define __MTD_NFTL_USER_H__

/* Block Control Information */

struct nftl_bci {
	unsigned char ECCSig[6];
	uint8_t Status;
	uint8_t Status1;
}__attribute__((packed));

/* Unit Control Information */

struct nftl_uci0 {
	uint16_t VirtUnitNum;
	uint16_t ReplUnitNum;
	uint16_t SpareVirtUnitNum;
	uint16_t SpareReplUnitNum;
} __attribute__((packed));

struct nftl_uci1 {
	uint32_t WearInfo;
	uint16_t EraseMark;
	uint16_t EraseMark1;
} __attribute__((packed));

struct nftl_uci2 {
        uint16_t FoldMark;
        uint16_t FoldMark1;
	uint32_t unused;
} __attribute__((packed));

union nftl_uci {
	struct nftl_uci0 a;
	struct nftl_uci1 b;
	struct nftl_uci2 c;
};

struct nftl_oob {
	struct nftl_bci b;
	union nftl_uci u;
};

/* NFTL Media Header */

struct NFTLMediaHeader {
	char DataOrgID[6];
	uint16_t NumEraseUnits;
	uint16_t FirstPhysicalEUN;
	uint32_t FormattedSize;
	unsigned char UnitSizeFactor;
} __attribute__((packed));

#define MAX_ERASE_ZONES (8192 - 512)

#define ERASE_MARK 0x3c69
#define SECTOR_FREE 0xff
#define SECTOR_USED 0x55
#define SECTOR_IGNORE 0x11
#define SECTOR_DELETED 0x00

#define FOLD_MARK_IN_PROGRESS 0x5555

#define ZONE_GOOD 0xff
#define ZONE_BAD_ORIGINAL 0
#define ZONE_BAD_MARKED 7


#endif /* __MTD_NFTL_USER_H__ */
Commit	Line	Data
1da177e4	1	/*
e4f0648f	2	* Parts of NFTL headers shared with userspace
1da177e4 LT	3	*
	4	*/
	5
	6	#ifndef __MTD_NFTL_USER_H__
	7	#define __MTD_NFTL_USER_H__
	8
	9	/* Block Control Information */
	10
	11	struct nftl_bci {
	12	unsigned char ECCSig[6];
	13	uint8_t Status;
	14	uint8_t Status1;
	15	}__attribute__((packed));
	16
	17	/* Unit Control Information */
	18
	19	struct nftl_uci0 {
	20	uint16_t VirtUnitNum;
	21	uint16_t ReplUnitNum;
	22	uint16_t SpareVirtUnitNum;
	23	uint16_t SpareReplUnitNum;
	24	} __attribute__((packed));
	25
	26	struct nftl_uci1 {
	27	uint32_t WearInfo;
	28	uint16_t EraseMark;
	29	uint16_t EraseMark1;
	30	} __attribute__((packed));
	31
	32	struct nftl_uci2 {
	33	uint16_t FoldMark;
	34	uint16_t FoldMark1;
	35	uint32_t unused;
	36	} __attribute__((packed));
	37
	38	union nftl_uci {
	39	struct nftl_uci0 a;
	40	struct nftl_uci1 b;
	41	struct nftl_uci2 c;
	42	};
	43
	44	struct nftl_oob {
	45	struct nftl_bci b;
	46	union nftl_uci u;
	47	};
	48
	49	/* NFTL Media Header */
	50
	51	struct NFTLMediaHeader {
	52	char DataOrgID[6];
	53	uint16_t NumEraseUnits;
	54	uint16_t FirstPhysicalEUN;
	55	uint32_t FormattedSize;
	56	unsigned char UnitSizeFactor;
	57	} __attribute__((packed));
	58
	59	#define MAX_ERASE_ZONES (8192 - 512)
	60
	61	#define ERASE_MARK 0x3c69
	62	#define SECTOR_FREE 0xff
	63	#define SECTOR_USED 0x55
	64	#define SECTOR_IGNORE 0x11
	65	#define SECTOR_DELETED 0x00
	66
67	#define FOLD_MARK_IN_PROGRESS 0x5555
68
69	#define ZONE_GOOD 0xff
70	#define ZONE_BAD_ORIGINAL 0
71	#define ZONE_BAD_MARKED 7
72
73
74	#endif /* __MTD_NFTL_USER_H__ */