114 	int (*ecc)(struct mtd_info *mtd, int section,
116 	int (*free)(struct mtd_info *mtd, int section,
190 	int (*get_info)(struct mtd_info *mtd, int wunit,
192 	int (*get_wunit)(struct mtd_info *mtd,
285 	int (*_erase) (struct mtd_info *mtd, struct erase_info *instr);
286 	int (*_point) (struct mtd_info *mtd, loff_t from, size_t len,
288 	int (*_unpoint) (struct mtd_info *mtd, loff_t from, size_t len);
289 	int (*_read) (struct mtd_info *mtd, loff_t from, size_t len,
291 	int (*_write) (struct mtd_info *mtd, loff_t to, size_t len,
293 	int (*_panic_write) (struct mtd_info *mtd, loff_t to, size_t len,
295 	int (*_read_oob) (struct mtd_info *mtd, loff_t from,
297 	int (*_write_oob) (struct mtd_info *mtd, loff_t to,
299 	int (*_get_fact_prot_info) (struct mtd_info *mtd, size_t len,
301 	int (*_read_fact_prot_reg) (struct mtd_info *mtd, loff_t from,
303 	int (*_get_user_prot_info) (struct mtd_info *mtd, size_t len,
305 	int (*_read_user_prot_reg) (struct mtd_info *mtd, loff_t from,
307 	int (*_write_user_prot_reg) (struct mtd_info *mtd, loff_t to,
309 	int (*_lock_user_prot_reg) (struct mtd_info *mtd, loff_t from,
311 	int (*_writev) (struct mtd_info *mtd, const struct kvec *vecs,
313 	void (*_sync) (struct mtd_info *mtd);
314 	int (*_lock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
315 	int (*_unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
316 	int (*_is_locked) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
317 	int (*_block_isreserved) (struct mtd_info *mtd, loff_t ofs);
318 	int (*_block_isbad) (struct mtd_info *mtd, loff_t ofs);
319 	int (*_block_markbad) (struct mtd_info *mtd, loff_t ofs);
320 	int (*_max_bad_blocks) (struct mtd_info *mtd, loff_t ofs, size_t len);
321 	int (*_suspend) (struct mtd_info *mtd);
322 	void (*_resume) (struct mtd_info *mtd);
323 	void (*_reboot) (struct mtd_info *mtd);
328 	int (*_get_device) (struct mtd_info *mtd);
329 	void (*_put_device) (struct mtd_info *mtd);
346 int mtd_ooblayout_ecc(struct mtd_info *mtd, int section,
348 int mtd_ooblayout_find_eccregion(struct mtd_info *mtd, int eccbyte,
351 int mtd_ooblayout_get_eccbytes(struct mtd_info *mtd, u8 *eccbuf,
353 int mtd_ooblayout_set_eccbytes(struct mtd_info *mtd, const u8 *eccbuf,
355 int mtd_ooblayout_free(struct mtd_info *mtd, int section,
357 int mtd_ooblayout_get_databytes(struct mtd_info *mtd, u8 *databuf,
359 int mtd_ooblayout_set_databytes(struct mtd_info *mtd, const u8 *databuf,
361 int mtd_ooblayout_count_freebytes(struct mtd_info *mtd);
362 int mtd_ooblayout_count_eccbytes(struct mtd_info *mtd);
364 static inline void mtd_set_ooblayout(struct mtd_info *mtd,  in mtd_set_ooblayout()  argument
367 	mtd->ooblayout = ooblayout;  in mtd_set_ooblayout()
370 static inline void mtd_set_pairing_scheme(struct mtd_info *mtd,  in mtd_set_pairing_scheme()  argument
373 	mtd->pairing = pairing;  in mtd_set_pairing_scheme()
376 static inline void mtd_set_of_node(struct mtd_info *mtd,  in mtd_set_of_node()  argument
379 	mtd->dev.of_node = np;  in mtd_set_of_node()
380 	if (!mtd->name)  in mtd_set_of_node()
381 		of_property_read_string(np, "label", &mtd->name);  in mtd_set_of_node()
384 static inline struct device_node *mtd_get_of_node(struct mtd_info *mtd)  in mtd_get_of_node()  argument
386 	return dev_of_node(&mtd->dev);  in mtd_get_of_node()
389 static inline int mtd_oobavail(struct mtd_info *mtd, struct mtd_oob_ops *ops)  in mtd_oobavail()  argument
391 	return ops->mode == MTD_OPS_AUTO_OOB ? mtd->oobavail : mtd->oobsize;  in mtd_oobavail()
394 static inline int mtd_max_bad_blocks(struct mtd_info *mtd,  in mtd_max_bad_blocks()  argument
397 	if (!mtd->_max_bad_blocks)  in mtd_max_bad_blocks()
400 	if (mtd->size < (len + ofs) || ofs < 0)  in mtd_max_bad_blocks()
403 	return mtd->_max_bad_blocks(mtd, ofs, len);  in mtd_max_bad_blocks()
406 int mtd_wunit_to_pairing_info(struct mtd_info *mtd, int wunit,
408 int mtd_pairing_info_to_wunit(struct mtd_info *mtd,
410 int mtd_pairing_groups(struct mtd_info *mtd);
411 int mtd_erase(struct mtd_info *mtd, struct erase_info *instr);
412 int mtd_point(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
414 int mtd_unpoint(struct mtd_info *mtd, loff_t from, size_t len);
415 unsigned long mtd_get_unmapped_area(struct mtd_info *mtd, unsigned long len,
417 int mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
419 int mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
421 int mtd_panic_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
424 int mtd_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops);
425 int mtd_write_oob(struct mtd_info *mtd, loff_t to, struct mtd_oob_ops *ops);
427 int mtd_get_fact_prot_info(struct mtd_info *mtd, size_t len, size_t *retlen,
429 int mtd_read_fact_prot_reg(struct mtd_info *mtd, loff_t from, size_t len,
431 int mtd_get_user_prot_info(struct mtd_info *mtd, size_t len, size_t *retlen,
433 int mtd_read_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len,
435 int mtd_write_user_prot_reg(struct mtd_info *mtd, loff_t to, size_t len,
437 int mtd_lock_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len);
439 int mtd_writev(struct mtd_info *mtd, const struct kvec *vecs,
442 static inline void mtd_sync(struct mtd_info *mtd)  in mtd_sync()  argument
444 	if (mtd->_sync)  in mtd_sync()
445 		mtd->_sync(mtd);  in mtd_sync()
448 int mtd_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
449 int mtd_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
450 int mtd_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len);
451 int mtd_block_isreserved(struct mtd_info *mtd, loff_t ofs);
452 int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs);
453 int mtd_block_markbad(struct mtd_info *mtd, loff_t ofs);
455 static inline int mtd_suspend(struct mtd_info *mtd)  in mtd_suspend()  argument
457 	return mtd->_suspend ? mtd->_suspend(mtd) : 0;  in mtd_suspend()
460 static inline void mtd_resume(struct mtd_info *mtd)  in mtd_resume()  argument
462 	if (mtd->_resume)  in mtd_resume()
463 		mtd->_resume(mtd);  in mtd_resume()
466 static inline uint32_t mtd_div_by_eb(uint64_t sz, struct mtd_info *mtd)  in mtd_div_by_eb()  argument
468 	if (mtd->erasesize_shift)  in mtd_div_by_eb()
469 		return sz >> mtd->erasesize_shift;  in mtd_div_by_eb()
470 	do_div(sz, mtd->erasesize);  in mtd_div_by_eb()
474 static inline uint32_t mtd_mod_by_eb(uint64_t sz, struct mtd_info *mtd)  in mtd_mod_by_eb()  argument
476 	if (mtd->erasesize_shift)  in mtd_mod_by_eb()
477 		return sz & mtd->erasesize_mask;  in mtd_mod_by_eb()
478 	return do_div(sz, mtd->erasesize);  in mtd_mod_by_eb()
490 static inline void mtd_align_erase_req(struct mtd_info *mtd,  in mtd_align_erase_req()  argument
495 	if (WARN_ON(!mtd->erasesize))  in mtd_align_erase_req()
498 	mod = mtd_mod_by_eb(req->addr, mtd);  in mtd_align_erase_req()
504 	mod = mtd_mod_by_eb(req->addr + req->len, mtd);  in mtd_align_erase_req()
506 		req->len += mtd->erasesize - mod;  in mtd_align_erase_req()
509 static inline uint32_t mtd_div_by_ws(uint64_t sz, struct mtd_info *mtd)  in mtd_div_by_ws()  argument
511 	if (mtd->writesize_shift)  in mtd_div_by_ws()
512 		return sz >> mtd->writesize_shift;  in mtd_div_by_ws()
513 	do_div(sz, mtd->writesize);  in mtd_div_by_ws()
517 static inline uint32_t mtd_mod_by_ws(uint64_t sz, struct mtd_info *mtd)  in mtd_mod_by_ws()  argument
519 	if (mtd->writesize_shift)  in mtd_mod_by_ws()
520 		return sz & mtd->writesize_mask;  in mtd_mod_by_ws()
521 	return do_div(sz, mtd->writesize);  in mtd_mod_by_ws()
524 static inline int mtd_wunit_per_eb(struct mtd_info *mtd)  in mtd_wunit_per_eb()  argument
526 	return mtd->erasesize / mtd->writesize;  in mtd_wunit_per_eb()
529 static inline int mtd_offset_to_wunit(struct mtd_info *mtd, loff_t offs)  in mtd_offset_to_wunit()  argument
531 	return mtd_div_by_ws(mtd_mod_by_eb(offs, mtd), mtd);  in mtd_offset_to_wunit()
534 static inline loff_t mtd_wunit_to_offset(struct mtd_info *mtd, loff_t base,  in mtd_wunit_to_offset()  argument
537 	return base + (wunit * mtd->writesize);  in mtd_wunit_to_offset()
541 static inline int mtd_has_oob(const struct mtd_info *mtd)  in mtd_has_oob()  argument
543 	return mtd->_read_oob && mtd->_write_oob;  in mtd_has_oob()
546 static inline int mtd_type_is_nand(const struct mtd_info *mtd)  in mtd_type_is_nand()  argument
548 	return mtd->type == MTD_NANDFLASH || mtd->type == MTD_MLCNANDFLASH;  in mtd_type_is_nand()
551 static inline int mtd_can_have_bb(const struct mtd_info *mtd)  in mtd_can_have_bb()  argument
553 	return !!mtd->_block_isbad;  in mtd_can_have_bb()
561 extern int mtd_device_parse_register(struct mtd_info *mtd,
569 extern struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num);
570 extern int __get_mtd_device(struct mtd_info *mtd);
571 extern void __put_mtd_device(struct mtd_info *mtd);
573 extern void put_mtd_device(struct mtd_info *mtd);
577 	void (*add)(struct mtd_info *mtd);
578 	void (*remove)(struct mtd_info *mtd);
585 void *mtd_kmalloc_up_to(const struct mtd_info *mtd, size_t *size);
599 unsigned mtd_mmap_capabilities(struct mtd_info *mtd);