Lines Matching full:mtd
2 * Simple MTD partitioning layer
27 #include <linux/mtd/mtd.h>
28 #include <linux/mtd/partitions.h>
88 * @partition: MTD partition structure to fill
188 * Stateless function that takes a @parent MTD device, a string @_mtdparts
190 * the corresponding MTD partition structure array @_parts. Both the name and
194 * @parent: MTD device which contains the partitions
286 * MTD methods which simply translate the effective address and pass through
290 static int part_read(struct mtd_info *mtd, loff_t from, size_t len, in part_read() argument
296 stats = mtd->parent->ecc_stats; in part_read()
297 res = mtd->parent->_read(mtd->parent, from + mtd->offset, len, in part_read()
300 mtd->ecc_stats.failed += in part_read()
301 mtd->parent->ecc_stats.failed - stats.failed; in part_read()
303 mtd->ecc_stats.corrected += in part_read()
304 mtd->parent->ecc_stats.corrected - stats.corrected; in part_read()
309 static int part_point(struct mtd_info *mtd, loff_t from, size_t len, in part_point() argument
312 return mtd->parent->_point(mtd->parent, from + mtd->offset, len, in part_point()
316 static int part_unpoint(struct mtd_info *mtd, loff_t from, size_t len) in part_unpoint() argument
318 return mtd->parent->_unpoint(mtd->parent, from + mtd->offset, len); in part_unpoint()
322 static unsigned long part_get_unmapped_area(struct mtd_info *mtd, in part_get_unmapped_area() argument
327 offset += mtd->offset; in part_get_unmapped_area()
328 return mtd->parent->_get_unmapped_area(mtd->parent, len, offset, flags); in part_get_unmapped_area()
331 static int part_read_oob(struct mtd_info *mtd, loff_t from, in part_read_oob() argument
336 if (from >= mtd->size) in part_read_oob()
338 if (ops->datbuf && from + ops->len > mtd->size) in part_read_oob()
349 len = mtd->oobavail; in part_read_oob()
351 len = mtd->oobsize; in part_read_oob()
352 pages = mtd_div_by_ws(mtd->size, mtd); in part_read_oob()
353 pages -= mtd_div_by_ws(from, mtd); in part_read_oob()
358 res = mtd->parent->_read_oob(mtd->parent, from + mtd->offset, ops); in part_read_oob()
361 mtd->ecc_stats.corrected++; in part_read_oob()
363 mtd->ecc_stats.failed++; in part_read_oob()
368 static int part_read_user_prot_reg(struct mtd_info *mtd, loff_t from, in part_read_user_prot_reg() argument
371 return mtd->parent->_read_user_prot_reg(mtd->parent, from, len, in part_read_user_prot_reg()
375 static int part_get_user_prot_info(struct mtd_info *mtd, size_t len, in part_get_user_prot_info() argument
378 return mtd->parent->_get_user_prot_info(mtd->parent, len, retlen, in part_get_user_prot_info()
382 static int part_read_fact_prot_reg(struct mtd_info *mtd, loff_t from, in part_read_fact_prot_reg() argument
385 return mtd->parent->_read_fact_prot_reg(mtd->parent, from, len, in part_read_fact_prot_reg()
389 static int part_get_fact_prot_info(struct mtd_info *mtd, size_t len, in part_get_fact_prot_info() argument
392 return mtd->parent->_get_fact_prot_info(mtd->parent, len, retlen, in part_get_fact_prot_info()
396 static int part_write(struct mtd_info *mtd, loff_t to, size_t len, in part_write() argument
399 return mtd->parent->_write(mtd->parent, to + mtd->offset, len, in part_write()
403 static int part_panic_write(struct mtd_info *mtd, loff_t to, size_t len, in part_panic_write() argument
406 return mtd->parent->_panic_write(mtd->parent, to + mtd->offset, len, in part_panic_write()
410 static int part_write_oob(struct mtd_info *mtd, loff_t to, in part_write_oob() argument
413 if (to >= mtd->size) in part_write_oob()
415 if (ops->datbuf && to + ops->len > mtd->size) in part_write_oob()
417 return mtd->parent->_write_oob(mtd->parent, to + mtd->offset, ops); in part_write_oob()
420 static int part_write_user_prot_reg(struct mtd_info *mtd, loff_t from, in part_write_user_prot_reg() argument
423 return mtd->parent->_write_user_prot_reg(mtd->parent, from, len, in part_write_user_prot_reg()
427 static int part_lock_user_prot_reg(struct mtd_info *mtd, loff_t from, in part_lock_user_prot_reg() argument
430 return mtd->parent->_lock_user_prot_reg(mtd->parent, from, len); in part_lock_user_prot_reg()
434 static int part_writev(struct mtd_info *mtd, const struct kvec *vecs, in part_writev() argument
437 return mtd->parent->_writev(mtd->parent, vecs, count, in part_writev()
438 to + mtd->offset, retlen); in part_writev()
442 static int part_erase(struct mtd_info *mtd, struct erase_info *instr) in part_erase() argument
446 instr->addr += mtd->offset; in part_erase()
447 ret = mtd->parent->_erase(mtd->parent, instr); in part_erase()
450 instr->fail_addr -= mtd->offset; in part_erase()
451 instr->addr -= mtd->offset; in part_erase()
458 if (instr->mtd->_erase == part_erase) { in mtd_erase_callback()
460 instr->fail_addr -= instr->mtd->offset; in mtd_erase_callback()
461 instr->addr -= instr->mtd->offset; in mtd_erase_callback()
468 static int part_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) in part_lock() argument
470 return mtd->parent->_lock(mtd->parent, ofs + mtd->offset, len); in part_lock()
473 static int part_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) in part_unlock() argument
475 return mtd->parent->_unlock(mtd->parent, ofs + mtd->offset, len); in part_unlock()
478 static int part_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len) in part_is_locked() argument
480 return mtd->parent->_is_locked(mtd->parent, ofs + mtd->offset, len); in part_is_locked()
483 static void part_sync(struct mtd_info *mtd) in part_sync() argument
485 mtd->parent->_sync(mtd->parent); in part_sync()
489 static int part_suspend(struct mtd_info *mtd) in part_suspend() argument
491 return mtd->parent->_suspend(mtd->parent); in part_suspend()
494 static void part_resume(struct mtd_info *mtd) in part_resume() argument
496 mtd->parent->_resume(mtd->parent); in part_resume()
500 static int part_block_isreserved(struct mtd_info *mtd, loff_t ofs) in part_block_isreserved() argument
502 ofs += mtd->offset; in part_block_isreserved()
503 return mtd->parent->_block_isreserved(mtd->parent, ofs); in part_block_isreserved()
506 static int part_block_isbad(struct mtd_info *mtd, loff_t ofs) in part_block_isbad() argument
508 ofs += mtd->offset; in part_block_isbad()
509 return mtd->parent->_block_isbad(mtd->parent, ofs); in part_block_isbad()
512 static int part_block_markbad(struct mtd_info *mtd, loff_t ofs) in part_block_markbad() argument
516 ofs += mtd->offset; in part_block_markbad()
517 res = mtd->parent->_block_markbad(mtd->parent, ofs); in part_block_markbad()
519 mtd->ecc_stats.badblocks++; in part_block_markbad()
530 * This function unregisters and destroy all slave MTD objects which are
531 * attached to the given master MTD object, recursively.
542 debug("Deleting %s MTD partition\n", slave->name); in do_del_mtd_partitions()
562 debug("Deleting MTD partitions on \"%s\":\n", master->name); in del_mtd_partitions()
589 /* set up the MTD object for this partition */ in allocate_partition()
690 debug("mtd partition \"%s\" doesn't have enough space: %#llx < %#llx, disabled\n", in allocate_partition()
708 printk(KERN_ERR"mtd: partition \"%s\" is out of reach -- disabled\n", in allocate_partition()
714 …printk(KERN_WARNING"mtd: partition \"%s\" extends beyond the end of device \"%s\" -- size truncate… in allocate_partition()
748 …printk(KERN_WARNING"mtd: partition \"%s\" doesn't start on an erase block boundary -- force read-o… in allocate_partition()
754 printk(KERN_WARNING"mtd: partition \"%s\" doesn't end on an erase block -- force read-only\n", in allocate_partition()
858 * This function, given a master MTD object and a partition table, creates
859 * and registers slave MTD objects which are bound to the master according to
874 debug("Creating %d MTD partitions on \"%s\":\n", nbparts, master->name); in add_mtd_partitions()
943 * parse_mtd_partitions - parse MTD partitions
944 * @master: the master partition (describes whole MTD device)
947 * @data: MTD partition parser-specific data
949 * This function tries to find partition on MTD device @master. It uses MTD
981 printk(KERN_NOTICE "%d %s partitions found on MTD device %s\n", in parse_mtd_partitions()
991 uint64_t mtd_get_device_size(const struct mtd_info *mtd) in mtd_get_device_size() argument
993 if (mtd_is_partition(mtd)) in mtd_get_device_size()
994 return mtd->parent->size; in mtd_get_device_size()
996 return mtd->size; in mtd_get_device_size()