diff options
Diffstat (limited to 'include/linux/mtd/mtd.h')
| -rw-r--r-- | include/linux/mtd/mtd.h | 41 |
1 files changed, 28 insertions, 13 deletions
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 157357ec1441..8d10d9d2e830 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -40,6 +40,12 @@ struct mtd_erase_region_info { unsigned long *lockmap; /* If keeping bitmap of locks */ }; +struct mtd_req_stats { + unsigned int uncorrectable_errors; + unsigned int corrected_bitflips; + unsigned int max_bitflips; +}; + /** * struct mtd_oob_ops - oob operation operands * @mode: operation mode @@ -70,10 +76,9 @@ struct mtd_oob_ops { uint32_t ooboffs; uint8_t *datbuf; uint8_t *oobbuf; + struct mtd_req_stats *stats; }; -#define MTD_MAX_OOBFREE_ENTRIES_LARGE 32 -#define MTD_MAX_ECCPOS_ENTRIES_LARGE 640 /** * struct mtd_oob_region - oob region definition * @offset: region offset @@ -190,9 +195,6 @@ struct module; /* only needed for owner field in mtd_info */ */ struct mtd_debug_info { struct dentry *dfs_dir; - - const char *partname; - const char *partid; }; /** @@ -221,7 +223,7 @@ struct mtd_part { * @partitions_lock: lock protecting accesses to the partition list. Protects * not only the master partition list, but also all * sub-partitions. - * @suspended: et to 1 when the device is suspended, 0 otherwise + * @suspended: set to 1 when the device is suspended, 0 otherwise * * This struct is embedded in mtd_info and contains master-specific * properties/fields. The master is the root MTD device from the MTD partition @@ -229,6 +231,7 @@ struct mtd_part { */ struct mtd_master { struct mutex partitions_lock; + struct mutex chrdev_lock; unsigned int suspended : 1; }; @@ -333,9 +336,12 @@ struct mtd_info { int (*_read_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf); int (*_write_user_prot_reg) (struct mtd_info *mtd, loff_t to, - size_t len, size_t *retlen, u_char *buf); + size_t len, size_t *retlen, + const u_char *buf); int (*_lock_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len); + int (*_erase_user_prot_reg) (struct mtd_info *mtd, loff_t from, + size_t len); int (*_writev) (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to, size_t *retlen); void (*_sync) (struct mtd_info *mtd); @@ -373,9 +379,11 @@ struct mtd_info { struct module *owner; struct device dev; - int usecount; + struct kref refcnt; struct mtd_debug_info dbg; struct nvmem_device *nvmem; + struct nvmem_device *otp_user_nvmem; + struct nvmem_device *otp_factory_nvmem; /* * Parent device from the MTD partition point of view. @@ -388,10 +396,8 @@ struct mtd_info { /* List of partitions attached to this MTD device */ struct list_head partitions; - union { - struct mtd_part part; - struct mtd_master master; - }; + struct mtd_part part; + struct mtd_master master; }; static inline struct mtd_info *mtd_get_master(struct mtd_info *mtd) @@ -515,8 +521,9 @@ int mtd_get_user_prot_info(struct mtd_info *mtd, size_t len, size_t *retlen, int mtd_read_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf); int mtd_write_user_prot_reg(struct mtd_info *mtd, loff_t to, size_t len, - size_t *retlen, u_char *buf); + size_t *retlen, const u_char *buf); int mtd_lock_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len); +int mtd_erase_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len); int mtd_writev(struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to, size_t *retlen); @@ -677,6 +684,7 @@ extern int mtd_device_unregister(struct mtd_info *master); extern struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num); extern int __get_mtd_device(struct mtd_info *mtd); extern void __put_mtd_device(struct mtd_info *mtd); +extern struct mtd_info *of_get_mtd_device_by_node(struct device_node *np); extern struct mtd_info *get_mtd_device_nm(const char *name); extern void put_mtd_device(struct mtd_info *mtd); @@ -706,4 +714,11 @@ static inline int mtd_is_bitflip_or_eccerr(int err) { unsigned mtd_mmap_capabilities(struct mtd_info *mtd); +#ifdef CONFIG_DEBUG_FS +bool mtd_check_expert_analysis_mode(void); +#else +static inline bool mtd_check_expert_analysis_mode(void) { return false; } +#endif + + #endif /* __MTD_MTD_H__ */ |