uapi/mtd/inftl-user.h

0001 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
0002 /*
0003  * Parts of INFTL headers shared with userspace
0004  *
0005  */
0006
0007 #ifndef __MTD_INFTL_USER_H__
0008 #define __MTD_INFTL_USER_H__
0009
0010 #include <linux/types.h>
0011
0012 #define OSAK_VERSION    0x5120
0013 #define PERCENTUSED 98
0014
0015 #define SECTORSIZE  512
0016
0017 /* Block Control Information */
0018
0019 struct inftl_bci {
0020     __u8 ECCsig[6];
0021     __u8 Status;
0022     __u8 Status1;
0023 } __attribute__((packed));
0024
0025 struct inftl_unithead1 {
0026     __u16 virtualUnitNo;
0027     __u16 prevUnitNo;
0028     __u8 ANAC;
0029     __u8 NACs;
0030     __u8 parityPerField;
0031     __u8 discarded;
0032 } __attribute__((packed));
0033
0034 struct inftl_unithead2 {
0035     __u8 parityPerField;
0036     __u8 ANAC;
0037     __u16 prevUnitNo;
0038     __u16 virtualUnitNo;
0039     __u8 NACs;
0040     __u8 discarded;
0041 } __attribute__((packed));
0042
0043 struct inftl_unittail {
0044     __u8 Reserved[4];
0045     __u16 EraseMark;
0046     __u16 EraseMark1;
0047 } __attribute__((packed));
0048
0049 union inftl_uci {
0050     struct inftl_unithead1 a;
0051     struct inftl_unithead2 b;
0052     struct inftl_unittail c;
0053 };
0054
0055 struct inftl_oob {
0056     struct inftl_bci b;
0057     union inftl_uci u;
0058 };
0059
0060
0061 /* INFTL Media Header */
0062
0063 struct INFTLPartition {
0064     __u32 virtualUnits;
0065     __u32 firstUnit;
0066     __u32 lastUnit;
0067     __u32 flags;
0068     __u32 spareUnits;
0069     __u32 Reserved0;
0070     __u32 Reserved1;
0071 } __attribute__((packed));
0072
0073 struct INFTLMediaHeader {
0074     char bootRecordID[8];
0075     __u32 NoOfBootImageBlocks;
0076     __u32 NoOfBinaryPartitions;
0077     __u32 NoOfBDTLPartitions;
0078     __u32 BlockMultiplierBits;
0079     __u32 FormatFlags;
0080     __u32 OsakVersion;
0081     __u32 PercentUsed;
0082     struct INFTLPartition Partitions[4];
0083 } __attribute__((packed));
0084
0085 /* Partition flag types */
0086 #define INFTL_BINARY    0x20000000
0087 #define INFTL_BDTL  0x40000000
0088 #define INFTL_LAST  0x80000000
0089
0090 #endif /* __MTD_INFTL_USER_H__ */
0091
0092