51 	struct mtd_info *mtd;  member
58 	return fixed_size_llseek(file, offset, orig, mfi->mtd->size);  in mtdchar_lseek()
66 	struct mtd_info *mtd;  in mtdchar_open()  local
76 	mtd = get_mtd_device(NULL, devnum);  in mtdchar_open()
78 	if (IS_ERR(mtd)) {  in mtdchar_open()
79 		ret = PTR_ERR(mtd);  in mtdchar_open()
83 	if (mtd->type == MTD_ABSENT) {  in mtdchar_open()
89 	if ((file->f_mode & FMODE_WRITE) && !(mtd->flags & MTD_WRITEABLE)) {  in mtdchar_open()
99 	mfi->mtd = mtd;  in mtdchar_open()
105 	put_mtd_device(mtd);  in mtdchar_open()
116 	struct mtd_info *mtd = mfi->mtd;  in mtdchar_close()  local
122 		mtd_sync(mtd);  in mtdchar_close()
124 	put_mtd_device(mtd);  in mtdchar_close()
153 	struct mtd_info *mtd = mfi->mtd;  in mtdchar_read()  local
163 	if (*ppos + count > mtd->size) {  in mtdchar_read()
164 		if (*ppos < mtd->size)  in mtdchar_read()
165 			count = mtd->size - *ppos;  in mtdchar_read()
173 	kbuf = mtd_kmalloc_up_to(mtd, &size);  in mtdchar_read()
182 			ret = mtd_read_fact_prot_reg(mtd, *ppos, len,  in mtdchar_read()
186 			ret = mtd_read_user_prot_reg(mtd, *ppos, len,  in mtdchar_read()
198 			ret = mtd_read_oob(mtd, *ppos, &ops);  in mtdchar_read()
203 			ret = mtd_read(mtd, *ppos, len, &retlen, kbuf);  in mtdchar_read()
243 	struct mtd_info *mtd = mfi->mtd;  in mtdchar_write()  local
253 	if (*ppos >= mtd->size)  in mtdchar_write()
256 	if (*ppos + count > mtd->size)  in mtdchar_write()
257 		count = mtd->size - *ppos;  in mtdchar_write()
262 	kbuf = mtd_kmalloc_up_to(mtd, &size);  in mtdchar_write()
279 			ret = mtd_write_user_prot_reg(mtd, *ppos, len,  in mtdchar_write()
293 			ret = mtd_write_oob(mtd, *ppos, &ops);  in mtdchar_write()
299 			ret = mtd_write(mtd, *ppos, len, &retlen, kbuf);  in mtdchar_write()
334 	struct mtd_info *mtd = mfi->mtd;  in otp_select_filemode()  local
339 		if (mtd_read_fact_prot_reg(mtd, -1, 0, &retlen, NULL) ==  in otp_select_filemode()
346 		if (mtd_read_user_prot_reg(mtd, -1, 0, &retlen, NULL) ==  in otp_select_filemode()
362 static int mtdchar_writeoob(struct file *file, struct mtd_info *mtd,  in mtdchar_writeoob()  argument
377 	if (!mtd->_write_oob)  in mtdchar_writeoob()
381 	ops.ooboffs = start & (mtd->writesize - 1);  in mtdchar_writeoob()
386 	if (ops.ooboffs && ops.ooblen > (mtd->oobsize - ops.ooboffs))  in mtdchar_writeoob()
393 	start &= ~((uint64_t)mtd->writesize - 1);  in mtdchar_writeoob()
394 	ret = mtd_write_oob(mtd, start, &ops);  in mtdchar_writeoob()
406 static int mtdchar_readoob(struct file *file, struct mtd_info *mtd,  in mtdchar_readoob()  argument
418 	ops.ooboffs = start & (mtd->writesize - 1);  in mtdchar_readoob()
423 	if (ops.ooboffs && ops.ooblen > (mtd->oobsize - ops.ooboffs))  in mtdchar_readoob()
430 	start &= ~((uint64_t)mtd->writesize - 1);  in mtdchar_readoob()
431 	ret = mtd_read_oob(mtd, start, &ops);  in mtdchar_readoob()
467 static int shrink_ecclayout(struct mtd_info *mtd,  in shrink_ecclayout()  argument
473 	if (!mtd || !to)  in shrink_ecclayout()
482 		ret = mtd_ooblayout_ecc(mtd, section++, &oobregion);  in shrink_ecclayout()
499 		ret = mtd_ooblayout_free(mtd, i, &oobregion);  in shrink_ecclayout()
515 static int get_oobinfo(struct mtd_info *mtd, struct nand_oobinfo *to)  in get_oobinfo()  argument
520 	if (!mtd || !to)  in get_oobinfo()
529 		ret = mtd_ooblayout_ecc(mtd, section++, &oobregion);  in get_oobinfo()
548 		ret = mtd_ooblayout_free(mtd, i, &oobregion);  in get_oobinfo()
565 static int mtdchar_blkpg_ioctl(struct mtd_info *mtd,  in mtdchar_blkpg_ioctl()  argument
580 		if (mtd_is_partition(mtd))  in mtdchar_blkpg_ioctl()
586 		return mtd_add_partition(mtd, p.devname, p.start, p.length);  in mtdchar_blkpg_ioctl()
593 		return mtd_del_partition(mtd, p.pno);  in mtdchar_blkpg_ioctl()
600 static int mtdchar_write_ioctl(struct mtd_info *mtd,  in mtdchar_write_ioctl()  argument
614 	if (!mtd->_write_oob)  in mtdchar_write_ioctl()
640 	ret = mtd_write_oob(mtd, (loff_t)req.start, &ops);  in mtdchar_write_ioctl()
651 	struct mtd_info *mtd = mfi->mtd;  in mtdchar_ioctl()  local
660 		if (copy_to_user(argp, &(mtd->numeraseregions), sizeof(int)))  in mtdchar_ioctl()
673 		if (ur_idx >= mtd->numeraseregions)  in mtdchar_ioctl()
676 		kr = &(mtd->eraseregions[ur_idx]);  in mtdchar_ioctl()
688 		info.type	= mtd->type;  in mtdchar_ioctl()
689 		info.flags	= mtd->flags;  in mtdchar_ioctl()
690 		info.size	= mtd->size;  in mtdchar_ioctl()
691 		info.erasesize	= mtd->erasesize;  in mtdchar_ioctl()
692 		info.writesize	= mtd->writesize;  in mtdchar_ioctl()
693 		info.oobsize	= mtd->oobsize;  in mtdchar_ioctl()
734 			ret = mtd_erase(mtd, erase);  in mtdchar_ioctl()
749 			ret = mtdchar_writeoob(file, mtd, buf.start, buf.length,  in mtdchar_ioctl()
763 			ret = mtdchar_readoob(file, mtd, buf.start, buf.length,  in mtdchar_ioctl()
776 			ret = mtdchar_writeoob(file, mtd, buf.start, buf.length,  in mtdchar_ioctl()
790 			ret = mtdchar_readoob(file, mtd, buf.start, buf.length,  in mtdchar_ioctl()
798 		ret = mtdchar_write_ioctl(mtd,  in mtdchar_ioctl()
810 		ret = mtd_lock(mtd, einfo.start, einfo.length);  in mtdchar_ioctl()
821 		ret = mtd_unlock(mtd, einfo.start, einfo.length);  in mtdchar_ioctl()
832 		ret = mtd_is_locked(mtd, einfo.start, einfo.length);  in mtdchar_ioctl()
841 		if (!mtd->ooblayout)  in mtdchar_ioctl()
844 		ret = get_oobinfo(mtd, &oi);  in mtdchar_ioctl()
859 		return mtd_block_isbad(mtd, offs);  in mtdchar_ioctl()
869 		return mtd_block_markbad(mtd, offs);  in mtdchar_ioctl()
896 			ret = mtd_get_fact_prot_info(mtd, 4096, &retlen, buf);  in mtdchar_ioctl()
899 			ret = mtd_get_user_prot_info(mtd, 4096, &retlen, buf);  in mtdchar_ioctl()
926 		ret = mtd_lock_user_prot_reg(mtd, oinfo.start, oinfo.length);  in mtdchar_ioctl()
935 		if (!mtd->ooblayout)  in mtdchar_ioctl()
942 		shrink_ecclayout(mtd, usrlay);  in mtdchar_ioctl()
952 		if (copy_to_user(argp, &mtd->ecc_stats,  in mtdchar_ioctl()
969 			if (!mtd_has_oob(mtd))  in mtdchar_ioctl()
990 			ret = mtdchar_blkpg_ioctl(mtd, &a);  in mtdchar_ioctl()
1034 	struct mtd_info *mtd = mfi->mtd;  in mtdchar_compat_ioctl()  local
1049 			ret = mtdchar_writeoob(file, mtd, buf.start,  in mtdchar_compat_ioctl()
1064 			ret = mtdchar_readoob(file, mtd, buf.start,  in mtdchar_compat_ioctl()
1088 		ret = mtdchar_blkpg_ioctl(mtd, &a);  in mtdchar_compat_ioctl()
1116 	struct mtd_info *mtd = mfi->mtd;  in mtdchar_get_unmapped_area()  local
1123 	if (len > mtd->size || pgoff >= (mtd->size >> PAGE_SHIFT))  in mtdchar_get_unmapped_area()
1127 	if (offset > mtd->size - len)  in mtdchar_get_unmapped_area()
1130 	ret = mtd_get_unmapped_area(mtd, len, offset, flags);  in mtdchar_get_unmapped_area()
1138 	return mtd_mmap_capabilities(mfi->mtd);  in mtdchar_mmap_capabilities()
1149 	struct mtd_info *mtd = mfi->mtd;  in mtdchar_mmap()  local
1150 	struct map_info *map = mtd->priv;  in mtdchar_mmap()