[linux-2.6-block.git] / include / mtd / nftl-user.h

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

#ifndef __MTD_NFTL_USER_H__
#define __MTD_NFTL_USER_H__

#include <linux/types.h>

/* Block Control Information */

struct nftl_bci {
	unsigned char ECCSig[6];
	__u8 Status;
	__u8 Status1;
}__attribute__((packed));

/* Unit Control Information */

struct nftl_uci0 {
	__u16 VirtUnitNum;
	__u16 ReplUnitNum;
	__u16 SpareVirtUnitNum;
	__u16 SpareReplUnitNum;
} __attribute__((packed));

struct nftl_uci1 {
	__u32 WearInfo;
	__u16 EraseMark;
	__u16 EraseMark1;
} __attribute__((packed));

struct nftl_uci2 {
        __u16 FoldMark;
        __u16 FoldMark1;
	__u32 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];
	__u16 NumEraseUnits;
	__u16 FirstPhysicalEUN;
	__u32 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
ccef7ab5 AB	9	#include <linux/types.h>
ccef7ab5 AB	10
1da177e4 LT	11	/* Block Control Information */
	12
	13	struct nftl_bci {
	14	unsigned char ECCSig[6];
ccef7ab5 AB	15	__u8 Status;
ccef7ab5 AB	16	__u8 Status1;
1da177e4 LT	17	}__attribute__((packed));
	18
	19	/* Unit Control Information */
	20
	21	struct nftl_uci0 {
ccef7ab5 AB	22	__u16 VirtUnitNum;
	23	__u16 ReplUnitNum;
	24	__u16 SpareVirtUnitNum;
	25	__u16 SpareReplUnitNum;
1da177e4 LT	26	} __attribute__((packed));
	27
	28	struct nftl_uci1 {
ccef7ab5 AB	29	__u32 WearInfo;
	30	__u16 EraseMark;
	31	__u16 EraseMark1;
1da177e4 LT	32	} __attribute__((packed));
	33
	34	struct nftl_uci2 {
ccef7ab5 AB	35	__u16 FoldMark;
	36	__u16 FoldMark1;
	37	__u32 unused;
1da177e4 LT	38	} __attribute__((packed));
	39
	40	union nftl_uci {
	41	struct nftl_uci0 a;
	42	struct nftl_uci1 b;
	43	struct nftl_uci2 c;
	44	};
	45
	46	struct nftl_oob {
	47	struct nftl_bci b;
	48	union nftl_uci u;
	49	};
	50
	51	/* NFTL Media Header */
	52
	53	struct NFTLMediaHeader {
	54	char DataOrgID[6];
ccef7ab5 AB	55	__u16 NumEraseUnits;
	56	__u16 FirstPhysicalEUN;
	57	__u32 FormattedSize;
1da177e4 LT	58	unsigned char UnitSizeFactor;
	59	} __attribute__((packed));
	60
	61	#define MAX_ERASE_ZONES (8192 - 512)
	62
	63	#define ERASE_MARK 0x3c69
	64	#define SECTOR_FREE 0xff
	65	#define SECTOR_USED 0x55
	66	#define SECTOR_IGNORE 0x11
	67	#define SECTOR_DELETED 0x00
	68
	69	#define FOLD_MARK_IN_PROGRESS 0x5555
	70
	71	#define ZONE_GOOD 0xff
	72	#define ZONE_BAD_ORIGINAL 0
	73	#define ZONE_BAD_MARKED 7
	74
	75
	76	#endif /* __MTD_NFTL_USER_H__ */