From 5bd34c091a044d130601370c370f84b1c59f1627 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 27 May 2006 22:16:10 +0200 Subject: [MTD] NAND Replace oobinfo by ecclayout The nand_oobinfo structure is not fitting the newer error correction demands anymore. Replace it by struct nand_ecclayout and fixup the users all over the place. Keep the nand_oobinfo based ioctl for user space compability reasons. Signed-off-by: Thomas Gleixner --- include/mtd/mtd-abi.h | 36 +++++++++++++++++++++++++++++------- include/mtd/mtd-user.h | 1 + 2 files changed, 30 insertions(+), 7 deletions(-) (limited to 'include/mtd') diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h index 1e09e4c8f485..54c673f9648d 100644 --- a/include/mtd/mtd-abi.h +++ b/include/mtd/mtd-abi.h @@ -82,12 +82,12 @@ struct otp_info { uint32_t locked; }; -#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 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) @@ -97,8 +97,13 @@ struct otp_info { #define OTPSELECT _IOR('M', 13, int) #define OTPGETREGIONCOUNT _IOW('M', 14, int) #define OTPGETREGIONINFO _IOW('M', 15, struct otp_info) -#define OTPLOCK _IOR('M', 16, struct otp_info) +#define OTPLOCK _IOR('M', 16, struct otp_info) +#define ECCGETLAYOUT _IOR('M', 17, struct nand_ecclayout) +/* + * Obsolete legacy interface. Keep it in order not to break userspace + * interfaces + */ struct nand_oobinfo { uint32_t useecc; uint32_t eccbytes; @@ -106,4 +111,21 @@ struct nand_oobinfo { uint32_t eccpos[32]; }; +struct nand_oobfree { + uint32_t offset; + uint32_t length; +}; + +#define MTD_MAX_OOBFREE_ENTRIES 8 +/* + * ECC layout control structure. Exported to userspace for + * diagnosis and to allow creation of raw images + */ +struct nand_ecclayout { + uint32_t eccbytes; + uint32_t eccpos[64]; + uint32_t oobavail; + struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES]; +}; + #endif /* __MTD_ABI_H__ */ diff --git a/include/mtd/mtd-user.h b/include/mtd/mtd-user.h index 1c13fc7161fe..713f34d3e62e 100644 --- a/include/mtd/mtd-user.h +++ b/include/mtd/mtd-user.h @@ -16,5 +16,6 @@ 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; +typedef struct nand_ecclayout nand_ecclayout_t; #endif /* __MTD_USER_H__ */ -- cgit v1.2.2