/** * struct nand_ecc_sw_bch_conf - private software BCH ECC engine structure * @req_ctx: Save request context and tweak the original request to fit the * engine needs * @code_size: Number of bytes needed to store a code (one code per step) * @calc_buf: Buffer to use when calculating ECC bytes * @code_buf: Buffer to use when reading (raw) ECC bytes from the chip * @bch: BCH control structure * @errloc: error location array * @eccmask: XOR ecc mask, allows erased pages to be decoded as valid
*/ struct nand_ecc_sw_bch_conf { struct nand_ecc_req_tweak_ctx req_ctx; unsignedint code_size;
u8 *calc_buf;
u8 *code_buf; struct bch_control *bch; unsignedint *errloc; unsignedchar *eccmask;
};
#if IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_BCH)
int nand_ecc_sw_bch_calculate(struct nand_device *nand, constunsignedchar *buf, unsignedchar *code); int nand_ecc_sw_bch_correct(struct nand_device *nand, unsignedchar *buf, unsignedchar *read_ecc, unsignedchar *calc_ecc); int nand_ecc_sw_bch_init_ctx(struct nand_device *nand); void nand_ecc_sw_bch_cleanup_ctx(struct nand_device *nand); struct nand_ecc_engine *nand_ecc_sw_bch_get_engine(void);
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