diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/mtd | |
download | linux-fsl-qoriq-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/mtd')
-rw-r--r-- | include/mtd/inftl-user.h | 91 | ||||
-rw-r--r-- | include/mtd/jffs2-user.h | 35 | ||||
-rw-r--r-- | include/mtd/mtd-abi.h | 103 | ||||
-rw-r--r-- | include/mtd/mtd-user.h | 20 | ||||
-rw-r--r-- | include/mtd/nftl-user.h | 76 |
5 files changed, 325 insertions, 0 deletions
diff --git a/include/mtd/inftl-user.h b/include/mtd/inftl-user.h new file mode 100644 index 0000000..bda4f2c --- /dev/null +++ b/include/mtd/inftl-user.h @@ -0,0 +1,91 @@ +/* + * $Id: inftl-user.h,v 1.1 2004/05/05 15:17:00 dwmw2 Exp $ + * + * Parts of INFTL headers shared with userspace + * + */ + +#ifndef __MTD_INFTL_USER_H__ +#define __MTD_INFTL_USER_H__ + +#define OSAK_VERSION 0x5120 +#define PERCENTUSED 98 + +#define SECTORSIZE 512 + +/* Block Control Information */ + +struct inftl_bci { + uint8_t ECCsig[6]; + uint8_t Status; + uint8_t Status1; +} __attribute__((packed)); + +struct inftl_unithead1 { + uint16_t virtualUnitNo; + uint16_t prevUnitNo; + uint8_t ANAC; + uint8_t NACs; + uint8_t parityPerField; + uint8_t discarded; +} __attribute__((packed)); + +struct inftl_unithead2 { + uint8_t parityPerField; + uint8_t ANAC; + uint16_t prevUnitNo; + uint16_t virtualUnitNo; + uint8_t NACs; + uint8_t discarded; +} __attribute__((packed)); + +struct inftl_unittail { + uint8_t Reserved[4]; + uint16_t EraseMark; + uint16_t EraseMark1; +} __attribute__((packed)); + +union inftl_uci { + struct inftl_unithead1 a; + struct inftl_unithead2 b; + struct inftl_unittail c; +}; + +struct inftl_oob { + struct inftl_bci b; + union inftl_uci u; +}; + + +/* INFTL Media Header */ + +struct INFTLPartition { + __u32 virtualUnits; + __u32 firstUnit; + __u32 lastUnit; + __u32 flags; + __u32 spareUnits; + __u32 Reserved0; + __u32 Reserved1; +} __attribute__((packed)); + +struct INFTLMediaHeader { + char bootRecordID[8]; + __u32 NoOfBootImageBlocks; + __u32 NoOfBinaryPartitions; + __u32 NoOfBDTLPartitions; + __u32 BlockMultiplierBits; + __u32 FormatFlags; + __u32 OsakVersion; + __u32 PercentUsed; + struct INFTLPartition Partitions[4]; +} __attribute__((packed)); + +/* Partition flag types */ +#define INFTL_BINARY 0x20000000 +#define INFTL_BDTL 0x40000000 +#define INFTL_LAST 0x80000000 + +#endif /* __MTD_INFTL_USER_H__ */ + + diff --git a/include/mtd/jffs2-user.h b/include/mtd/jffs2-user.h new file mode 100644 index 0000000..d508ef0 --- /dev/null +++ b/include/mtd/jffs2-user.h @@ -0,0 +1,35 @@ +/* + * $Id: jffs2-user.h,v 1.1 2004/05/05 11:57:54 dwmw2 Exp $ + * + * JFFS2 definitions for use in user space only + */ + +#ifndef __JFFS2_USER_H__ +#define __JFFS2_USER_H__ + +/* This file is blessed for inclusion by userspace */ +#include <linux/jffs2.h> +#include <endian.h> +#include <byteswap.h> + +#undef cpu_to_je16 +#undef cpu_to_je32 +#undef cpu_to_jemode +#undef je16_to_cpu +#undef je32_to_cpu +#undef jemode_to_cpu + +extern int target_endian; + +#define t16(x) ({ uint16_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_16(__b); }) +#define t32(x) ({ uint32_t __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_32(__b); }) + +#define cpu_to_je16(x) ((jint16_t){t16(x)}) +#define cpu_to_je32(x) ((jint32_t){t32(x)}) +#define cpu_to_jemode(x) ((jmode_t){t32(x)}) + +#define je16_to_cpu(x) (t16((x).v16)) +#define je32_to_cpu(x) (t32((x).v32)) +#define jemode_to_cpu(x) (t32((x).m)) + +#endif /* __JFFS2_USER_H__ */ diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h new file mode 100644 index 0000000..a76ab89 --- /dev/null +++ b/include/mtd/mtd-abi.h @@ -0,0 +1,103 @@ +/* + * $Id: mtd-abi.h,v 1.7 2004/11/23 15:37:32 gleixner Exp $ + * + * Portions of MTD ABI definition which are shared by kernel and user space + */ + +#ifndef __MTD_ABI_H__ +#define __MTD_ABI_H__ + +#ifndef __KERNEL__ /* Urgh. The whole point of splitting this out into + separate files was to avoid #ifdef __KERNEL__ */ +#define __user +#endif + +struct erase_info_user { + uint32_t start; + uint32_t length; +}; + +struct mtd_oob_buf { + uint32_t start; + uint32_t length; + unsigned char __user *ptr; +}; + +#define MTD_ABSENT 0 +#define MTD_RAM 1 +#define MTD_ROM 2 +#define MTD_NORFLASH 3 +#define MTD_NANDFLASH 4 +#define MTD_PEROM 5 +#define MTD_OTHER 14 +#define MTD_UNKNOWN 15 + +#define MTD_CLEAR_BITS 1 // Bits can be cleared (flash) +#define MTD_SET_BITS 2 // Bits can be set +#define MTD_ERASEABLE 4 // Has an erase function +#define MTD_WRITEB_WRITEABLE 8 // Direct IO is possible +#define MTD_VOLATILE 16 // Set for RAMs +#define MTD_XIP 32 // eXecute-In-Place possible +#define MTD_OOB 64 // Out-of-band data (NAND flash) +#define MTD_ECC 128 // Device capable of automatic ECC +#define MTD_NO_VIRTBLOCKS 256 // Virtual blocks not allowed + +// Some common devices / combinations of capabilities +#define MTD_CAP_ROM 0 +#define MTD_CAP_RAM (MTD_CLEAR_BITS|MTD_SET_BITS|MTD_WRITEB_WRITEABLE) +#define MTD_CAP_NORFLASH (MTD_CLEAR_BITS|MTD_ERASEABLE) +#define MTD_CAP_NANDFLASH (MTD_CLEAR_BITS|MTD_ERASEABLE|MTD_OOB) +#define MTD_WRITEABLE (MTD_CLEAR_BITS|MTD_SET_BITS) + + +// Types of automatic ECC/Checksum available +#define MTD_ECC_NONE 0 // No automatic ECC available +#define MTD_ECC_RS_DiskOnChip 1 // Automatic ECC on DiskOnChip +#define MTD_ECC_SW 2 // SW ECC for Toshiba & Samsung devices + +/* ECC byte placement */ +#define MTD_NANDECC_OFF 0 // Switch off ECC (Not recommended) +#define MTD_NANDECC_PLACE 1 // Use the given placement in the structure (YAFFS1 legacy mode) +#define MTD_NANDECC_AUTOPLACE 2 // Use the default placement scheme +#define MTD_NANDECC_PLACEONLY 3 // Use the given placement in the structure (Do not store ecc result on read) + +struct mtd_info_user { + uint8_t type; + uint32_t flags; + uint32_t size; // Total size of the MTD + uint32_t erasesize; + uint32_t oobblock; // Size of OOB blocks (e.g. 512) + uint32_t oobsize; // Amount of OOB data per block (e.g. 16) + uint32_t ecctype; + uint32_t eccsize; +}; + +struct region_info_user { + uint32_t offset; /* At which this region starts, + * from the beginning of the MTD */ + uint32_t erasesize; /* For this region */ + uint32_t numblocks; /* Number of blocks in this region */ + uint32_t regionindex; +}; + +#define MEMGETINFO _IOR('M', 1, struct mtd_info_user) +#define MEMERASE _IOW('M', 2, struct erase_info_user) +#define MEMWRITEOOB _IOWR('M', 3, struct mtd_oob_buf) +#define MEMREADOOB _IOWR('M', 4, struct mtd_oob_buf) +#define MEMLOCK _IOW('M', 5, struct erase_info_user) +#define MEMUNLOCK _IOW('M', 6, struct erase_info_user) +#define MEMGETREGIONCOUNT _IOR('M', 7, int) +#define MEMGETREGIONINFO _IOWR('M', 8, struct region_info_user) +#define MEMSETOOBSEL _IOW('M', 9, struct nand_oobinfo) +#define MEMGETOOBSEL _IOR('M', 10, struct nand_oobinfo) +#define MEMGETBADBLOCK _IOW('M', 11, loff_t) +#define MEMSETBADBLOCK _IOW('M', 12, loff_t) + +struct nand_oobinfo { + uint32_t useecc; + uint32_t eccbytes; + uint32_t oobfree[8][2]; + uint32_t eccpos[32]; +}; + +#endif /* __MTD_ABI_H__ */ diff --git a/include/mtd/mtd-user.h b/include/mtd/mtd-user.h new file mode 100644 index 0000000..1c13fc7 --- /dev/null +++ b/include/mtd/mtd-user.h @@ -0,0 +1,20 @@ +/* + * $Id: mtd-user.h,v 1.2 2004/05/05 14:44:57 dwmw2 Exp $ + * + * MTD ABI header for use by user space only. + */ + +#ifndef __MTD_USER_H__ +#define __MTD_USER_H__ + +#include <stdint.h> + +/* This file is blessed for inclusion by userspace */ +#include <mtd/mtd-abi.h> + +typedef struct mtd_info_user mtd_info_t; +typedef struct erase_info_user erase_info_t; +typedef struct region_info_user region_info_t; +typedef struct nand_oobinfo nand_oobinfo_t; + +#endif /* __MTD_USER_H__ */ diff --git a/include/mtd/nftl-user.h b/include/mtd/nftl-user.h new file mode 100644 index 0000000..924ec04 --- /dev/null +++ b/include/mtd/nftl-user.h @@ -0,0 +1,76 @@ +/* + * $Id: nftl-user.h,v 1.1 2004/05/05 14:44:57 dwmw2 Exp $ + * + * 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__ */ |