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path: root/drivers/mtd/inftlmount.c
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Diffstat (limited to 'drivers/mtd/inftlmount.c')
-rw-r--r--drivers/mtd/inftlmount.c217
1 files changed, 102 insertions, 115 deletions
diff --git a/drivers/mtd/inftlmount.c b/drivers/mtd/inftlmount.c
index b5dda47395a..487e64f411a 100644
--- a/drivers/mtd/inftlmount.c
+++ b/drivers/mtd/inftlmount.c
@@ -1,14 +1,12 @@
-/*
+/*
* inftlmount.c -- INFTL mount code with extensive checks.
*
* Author: Greg Ungerer (gerg@snapgear.com)
- * (C) Copyright 2002-2003, Greg Ungerer (gerg@snapgear.com)
+ * Copyright © 2002-2003, Greg Ungerer (gerg@snapgear.com)
*
* Based heavily on the nftlmount.c code which is:
- * Author: Fabrice Bellard (fabrice.bellard@netgem.com)
- * Copyright (C) 2000 Netgem S.A.
- *
- * $Id: inftlmount.c,v 1.16 2004/11/22 13:50:53 kalev Exp $
+ * Author: Fabrice Bellard (fabrice.bellard@netgem.com)
+ * Copyright © 2000 Netgem S.A.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -30,18 +28,11 @@
#include <asm/errno.h>
#include <asm/io.h>
#include <asm/uaccess.h>
-#include <linux/miscdevice.h>
-#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/slab.h>
-#include <linux/sched.h>
-#include <linux/init.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nftl.h>
#include <linux/mtd/inftl.h>
-#include <linux/mtd/compatmac.h>
-
-char inftlmountrev[]="$Revision: 1.16 $";
/*
* find_boot_record: Find the INFTL Media Header and its Spare copy which
@@ -57,10 +48,11 @@ static int find_boot_record(struct INFTLrecord *inftl)
unsigned int i, block;
u8 buf[SECTORSIZE];
struct INFTLMediaHeader *mh = &inftl->MediaHdr;
+ struct mtd_info *mtd = inftl->mbd.mtd;
struct INFTLPartition *ip;
size_t retlen;
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: find_boot_record(inftl=%p)\n", inftl);
+ pr_debug("INFTL: find_boot_record(inftl=%p)\n", inftl);
/*
* Assume logical EraseSize == physical erasesize for starting the
@@ -68,7 +60,7 @@ static int find_boot_record(struct INFTLrecord *inftl)
* otherwise.
*/
inftl->EraseSize = inftl->mbd.mtd->erasesize;
- inftl->nb_blocks = inftl->mbd.mtd->size / inftl->EraseSize;
+ inftl->nb_blocks = (u32)inftl->mbd.mtd->size / inftl->EraseSize;
inftl->MediaUnit = BLOCK_NIL;
@@ -80,8 +72,8 @@ static int find_boot_record(struct INFTLrecord *inftl)
* Check for BNAND header first. Then whinge if it's found
* but later checks fail.
*/
- ret = MTD_READ(inftl->mbd.mtd, block * inftl->EraseSize,
- SECTORSIZE, &retlen, buf);
+ ret = mtd_read(mtd, block * inftl->EraseSize, SECTORSIZE,
+ &retlen, buf);
/* We ignore ret in case the ECC of the MediaHeader is invalid
(which is apparently acceptable) */
if (retlen != SECTORSIZE) {
@@ -106,8 +98,10 @@ static int find_boot_record(struct INFTLrecord *inftl)
}
/* To be safer with BIOS, also use erase mark as discriminant */
- if ((ret = MTD_READOOB(inftl->mbd.mtd, block * inftl->EraseSize +
- SECTORSIZE + 8, 8, &retlen, (char *)&h1) < 0)) {
+ ret = inftl_read_oob(mtd,
+ block * inftl->EraseSize + SECTORSIZE + 8,
+ 8, &retlen,(char *)&h1);
+ if (ret < 0) {
printk(KERN_WARNING "INFTL: ANAND header found at "
"0x%x in mtd%d, but OOB data read failed "
"(err %d)\n", block * inftl->EraseSize,
@@ -123,8 +117,8 @@ static int find_boot_record(struct INFTLrecord *inftl)
memcpy(mh, buf, sizeof(struct INFTLMediaHeader));
/* Read the spare media header at offset 4096 */
- MTD_READ(inftl->mbd.mtd, block * inftl->EraseSize + 4096,
- SECTORSIZE, &retlen, buf);
+ mtd_read(mtd, block * inftl->EraseSize + 4096, SECTORSIZE,
+ &retlen, buf);
if (retlen != SECTORSIZE) {
printk(KERN_WARNING "INFTL: Unable to read spare "
"Media Header\n");
@@ -144,24 +138,20 @@ static int find_boot_record(struct INFTLrecord *inftl)
mh->FormatFlags = le32_to_cpu(mh->FormatFlags);
mh->PercentUsed = le32_to_cpu(mh->PercentUsed);
-#ifdef CONFIG_MTD_DEBUG_VERBOSE
- if (CONFIG_MTD_DEBUG_VERBOSE >= 2) {
- printk("INFTL: Media Header ->\n"
- " bootRecordID = %s\n"
- " NoOfBootImageBlocks = %d\n"
- " NoOfBinaryPartitions = %d\n"
- " NoOfBDTLPartitions = %d\n"
- " BlockMultiplerBits = %d\n"
- " FormatFlgs = %d\n"
- " OsakVersion = 0x%x\n"
- " PercentUsed = %d\n",
- mh->bootRecordID, mh->NoOfBootImageBlocks,
- mh->NoOfBinaryPartitions,
- mh->NoOfBDTLPartitions,
- mh->BlockMultiplierBits, mh->FormatFlags,
- mh->OsakVersion, mh->PercentUsed);
- }
-#endif
+ pr_debug("INFTL: Media Header ->\n"
+ " bootRecordID = %s\n"
+ " NoOfBootImageBlocks = %d\n"
+ " NoOfBinaryPartitions = %d\n"
+ " NoOfBDTLPartitions = %d\n"
+ " BlockMultiplerBits = %d\n"
+ " FormatFlgs = %d\n"
+ " OsakVersion = 0x%x\n"
+ " PercentUsed = %d\n",
+ mh->bootRecordID, mh->NoOfBootImageBlocks,
+ mh->NoOfBinaryPartitions,
+ mh->NoOfBDTLPartitions,
+ mh->BlockMultiplierBits, mh->FormatFlags,
+ mh->OsakVersion, mh->PercentUsed);
if (mh->NoOfBDTLPartitions == 0) {
printk(KERN_WARNING "INFTL: Media Header sanity check "
@@ -191,7 +181,7 @@ static int find_boot_record(struct INFTLrecord *inftl)
mh->BlockMultiplierBits);
inftl->EraseSize = inftl->mbd.mtd->erasesize <<
mh->BlockMultiplierBits;
- inftl->nb_blocks = inftl->mbd.mtd->size / inftl->EraseSize;
+ inftl->nb_blocks = (u32)inftl->mbd.mtd->size / inftl->EraseSize;
block >>= mh->BlockMultiplierBits;
}
@@ -205,19 +195,15 @@ static int find_boot_record(struct INFTLrecord *inftl)
ip->spareUnits = le32_to_cpu(ip->spareUnits);
ip->Reserved0 = le32_to_cpu(ip->Reserved0);
-#ifdef CONFIG_MTD_DEBUG_VERBOSE
- if (CONFIG_MTD_DEBUG_VERBOSE >= 2) {
- printk(" PARTITION[%d] ->\n"
- " virtualUnits = %d\n"
- " firstUnit = %d\n"
- " lastUnit = %d\n"
- " flags = 0x%x\n"
- " spareUnits = %d\n",
- i, ip->virtualUnits, ip->firstUnit,
- ip->lastUnit, ip->flags,
- ip->spareUnits);
- }
-#endif
+ pr_debug(" PARTITION[%d] ->\n"
+ " virtualUnits = %d\n"
+ " firstUnit = %d\n"
+ " lastUnit = %d\n"
+ " flags = 0x%x\n"
+ " spareUnits = %d\n",
+ i, ip->virtualUnits, ip->firstUnit,
+ ip->lastUnit, ip->flags,
+ ip->spareUnits);
if (ip->Reserved0 != ip->firstUnit) {
struct erase_info *instr = &inftl->instr;
@@ -233,7 +219,7 @@ static int find_boot_record(struct INFTLrecord *inftl)
*/
instr->addr = ip->Reserved0 * inftl->EraseSize;
instr->len = inftl->EraseSize;
- MTD_ERASE(inftl->mbd.mtd, instr);
+ mtd_erase(mtd, instr);
}
if ((ip->lastUnit - ip->firstUnit + 1) < ip->virtualUnits) {
printk(KERN_WARNING "INFTL: Media Header "
@@ -273,7 +259,7 @@ static int find_boot_record(struct INFTLrecord *inftl)
inftl->nb_boot_blocks);
return -1;
}
-
+
inftl->mbd.size = inftl->numvunits *
(inftl->EraseSize / SECTORSIZE);
@@ -302,7 +288,7 @@ static int find_boot_record(struct INFTLrecord *inftl)
inftl->nb_blocks * sizeof(u16));
return -ENOMEM;
}
-
+
/* Mark the blocks before INFTL MediaHeader as reserved */
for (i = 0; i < inftl->nb_boot_blocks; i++)
inftl->PUtable[i] = BLOCK_RESERVED;
@@ -319,7 +305,8 @@ static int find_boot_record(struct INFTLrecord *inftl)
/* If any of the physical eraseblocks are bad, don't
use the unit. */
for (physblock = 0; physblock < inftl->EraseSize; physblock += inftl->mbd.mtd->erasesize) {
- if (inftl->mbd.mtd->block_isbad(inftl->mbd.mtd, i * inftl->EraseSize + physblock))
+ if (mtd_block_isbad(inftl->mbd.mtd,
+ i * inftl->EraseSize + physblock))
inftl->PUtable[i] = BLOCK_RESERVED;
}
}
@@ -350,21 +337,21 @@ static int check_free_sectors(struct INFTLrecord *inftl, unsigned int address,
int len, int check_oob)
{
u8 buf[SECTORSIZE + inftl->mbd.mtd->oobsize];
+ struct mtd_info *mtd = inftl->mbd.mtd;
size_t retlen;
int i;
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: check_free_sectors(inftl=%p,"
- "address=0x%x,len=%d,check_oob=%d)\n", inftl,
- address, len, check_oob);
-
for (i = 0; i < len; i += SECTORSIZE) {
- if (MTD_READECC(inftl->mbd.mtd, address, SECTORSIZE, &retlen, buf, &buf[SECTORSIZE], &inftl->oobinfo) < 0)
+ if (mtd_read(mtd, address, SECTORSIZE, &retlen, buf))
return -1;
if (memcmpb(buf, 0xff, SECTORSIZE) != 0)
return -1;
if (check_oob) {
- if (memcmpb(buf + SECTORSIZE, 0xff, inftl->mbd.mtd->oobsize) != 0)
+ if(inftl_read_oob(mtd, address, mtd->oobsize,
+ &retlen, &buf[SECTORSIZE]) < 0)
+ return -1;
+ if (memcmpb(buf + SECTORSIZE, 0xff, mtd->oobsize) != 0)
return -1;
}
address += SECTORSIZE;
@@ -380,17 +367,17 @@ static int check_free_sectors(struct INFTLrecord *inftl, unsigned int address,
*
* Return: 0 when succeed, -1 on error.
*
- * ToDo: 1. Is it neceressary to check_free_sector after erasing ??
+ * ToDo: 1. Is it necessary to check_free_sector after erasing ??
*/
int INFTL_formatblock(struct INFTLrecord *inftl, int block)
{
size_t retlen;
struct inftl_unittail uci;
struct erase_info *instr = &inftl->instr;
+ struct mtd_info *mtd = inftl->mbd.mtd;
int physblock;
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_formatblock(inftl=%p,"
- "block=%d)\n", inftl, block);
+ pr_debug("INFTL: INFTL_formatblock(inftl=%p,block=%d)\n", inftl, block);
memset(instr, 0, sizeof(struct erase_info));
@@ -404,8 +391,9 @@ int INFTL_formatblock(struct INFTLrecord *inftl, int block)
/* Erase one physical eraseblock at a time, even though the NAND api
allows us to group them. This way we if we have a failure, we can
mark only the failed block in the bbt. */
- for (physblock = 0; physblock < inftl->EraseSize; physblock += instr->len, instr->addr += instr->len) {
- MTD_ERASE(inftl->mbd.mtd, instr);
+ for (physblock = 0; physblock < inftl->EraseSize;
+ physblock += instr->len, instr->addr += instr->len) {
+ mtd_erase(inftl->mbd.mtd, instr);
if (instr->state == MTD_ERASE_FAILED) {
printk(KERN_WARNING "INFTL: error while formatting block %d\n",
@@ -414,10 +402,10 @@ int INFTL_formatblock(struct INFTLrecord *inftl, int block)
}
/*
- * Check the "freeness" of Erase Unit before updating metadata.
- * FixMe: is this check really necessary? Since we have check the
- * return code after the erase operation.
- */
+ * Check the "freeness" of Erase Unit before updating metadata.
+ * FixMe: is this check really necessary? Since we have check
+ * the return code after the erase operation.
+ */
if (check_free_sectors(inftl, instr->addr, instr->len, 1) != 0)
goto fail;
}
@@ -429,14 +417,13 @@ int INFTL_formatblock(struct INFTLrecord *inftl, int block)
uci.Reserved[2] = 0;
uci.Reserved[3] = 0;
instr->addr = block * inftl->EraseSize + SECTORSIZE * 2;
- if (MTD_WRITEOOB(inftl->mbd.mtd, instr->addr +
- 8, 8, &retlen, (char *)&uci) < 0)
+ if (inftl_write_oob(mtd, instr->addr + 8, 8, &retlen, (char *)&uci) < 0)
goto fail;
return 0;
fail:
/* could not format, update the bad block table (caller is responsible
for setting the PUtable to BLOCK_RESERVED on failure) */
- inftl->mbd.mtd->block_markbad(inftl->mbd.mtd, instr->addr);
+ mtd_block_markbad(inftl->mbd.mtd, instr->addr);
return -1;
}
@@ -480,30 +467,30 @@ void INFTL_dumptables(struct INFTLrecord *s)
{
int i;
- printk("-------------------------------------------"
+ pr_debug("-------------------------------------------"
"----------------------------------\n");
- printk("VUtable[%d] ->", s->nb_blocks);
+ pr_debug("VUtable[%d] ->", s->nb_blocks);
for (i = 0; i < s->nb_blocks; i++) {
if ((i % 8) == 0)
- printk("\n%04x: ", i);
- printk("%04x ", s->VUtable[i]);
+ pr_debug("\n%04x: ", i);
+ pr_debug("%04x ", s->VUtable[i]);
}
- printk("\n-------------------------------------------"
+ pr_debug("\n-------------------------------------------"
"----------------------------------\n");
- printk("PUtable[%d-%d=%d] ->", s->firstEUN, s->lastEUN, s->nb_blocks);
+ pr_debug("PUtable[%d-%d=%d] ->", s->firstEUN, s->lastEUN, s->nb_blocks);
for (i = 0; i <= s->lastEUN; i++) {
if ((i % 8) == 0)
- printk("\n%04x: ", i);
- printk("%04x ", s->PUtable[i]);
+ pr_debug("\n%04x: ", i);
+ pr_debug("%04x ", s->PUtable[i]);
}
- printk("\n-------------------------------------------"
+ pr_debug("\n-------------------------------------------"
"----------------------------------\n");
- printk("INFTL ->\n"
+ pr_debug("INFTL ->\n"
" EraseSize = %d\n"
" h/s/c = %d/%d/%d\n"
" numvunits = %d\n"
@@ -517,7 +504,7 @@ void INFTL_dumptables(struct INFTLrecord *s)
s->numvunits, s->firstEUN, s->lastEUN, s->numfreeEUNs,
s->LastFreeEUN, s->nb_blocks, s->nb_boot_blocks);
- printk("\n-------------------------------------------"
+ pr_debug("\n-------------------------------------------"
"----------------------------------\n");
}
@@ -525,30 +512,31 @@ void INFTL_dumpVUchains(struct INFTLrecord *s)
{
int logical, block, i;
- printk("-------------------------------------------"
+ pr_debug("-------------------------------------------"
"----------------------------------\n");
- printk("INFTL Virtual Unit Chains:\n");
+ pr_debug("INFTL Virtual Unit Chains:\n");
for (logical = 0; logical < s->nb_blocks; logical++) {
block = s->VUtable[logical];
if (block > s->nb_blocks)
continue;
- printk(" LOGICAL %d --> %d ", logical, block);
+ pr_debug(" LOGICAL %d --> %d ", logical, block);
for (i = 0; i < s->nb_blocks; i++) {
if (s->PUtable[block] == BLOCK_NIL)
break;
block = s->PUtable[block];
- printk("%d ", block);
+ pr_debug("%d ", block);
}
- printk("\n");
+ pr_debug("\n");
}
- printk("-------------------------------------------"
+ pr_debug("-------------------------------------------"
"----------------------------------\n");
}
int INFTL_mount(struct INFTLrecord *s)
{
+ struct mtd_info *mtd = s->mbd.mtd;
unsigned int block, first_block, prev_block, last_block;
unsigned int first_logical_block, logical_block, erase_mark;
int chain_length, do_format_chain;
@@ -558,12 +546,12 @@ int INFTL_mount(struct INFTLrecord *s)
int i;
u8 *ANACtable, ANAC;
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_mount(inftl=%p)\n", s);
+ pr_debug("INFTL: INFTL_mount(inftl=%p)\n", s);
/* Search for INFTL MediaHeader and Spare INFTL Media Header */
if (find_boot_record(s) < 0) {
printk(KERN_WARNING "INFTL: could not find valid boot record?\n");
- return -1;
+ return -ENXIO;
}
/* Init the logical to physical table */
@@ -573,8 +561,13 @@ int INFTL_mount(struct INFTLrecord *s)
logical_block = block = BLOCK_NIL;
/* Temporary buffer to store ANAC numbers. */
- ANACtable = kmalloc(s->nb_blocks * sizeof(u8), GFP_KERNEL);
- memset(ANACtable, 0, s->nb_blocks);
+ ANACtable = kcalloc(s->nb_blocks, sizeof(u8), GFP_KERNEL);
+ if (!ANACtable) {
+ printk(KERN_WARNING "INFTL: allocation of ANACtable "
+ "failed (%zd bytes)\n",
+ s->nb_blocks * sizeof(u8));
+ return -ENOMEM;
+ }
/*
* First pass is to explore each physical unit, and construct the
@@ -583,7 +576,7 @@ int INFTL_mount(struct INFTLrecord *s)
* NOTEXPLORED state. Then at the end we will try to format it and
* mark it as free.
*/
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: pass 1, explore each unit\n");
+ pr_debug("INFTL: pass 1, explore each unit\n");
for (first_block = s->firstEUN; first_block <= s->lastEUN; first_block++) {
if (s->PUtable[first_block] != BLOCK_NOTEXPLORED)
continue;
@@ -595,16 +588,17 @@ int INFTL_mount(struct INFTLrecord *s)
for (chain_length = 0; ; chain_length++) {
- if ((chain_length == 0) &&
+ if ((chain_length == 0) &&
(s->PUtable[block] != BLOCK_NOTEXPLORED)) {
/* Nothing to do here, onto next block */
break;
}
- if (MTD_READOOB(s->mbd.mtd, block * s->EraseSize + 8,
- 8, &retlen, (char *)&h0) < 0 ||
- MTD_READOOB(s->mbd.mtd, block * s->EraseSize +
- 2 * SECTORSIZE + 8, 8, &retlen, (char *)&h1) < 0) {
+ if (inftl_read_oob(mtd, block * s->EraseSize + 8,
+ 8, &retlen, (char *)&h0) < 0 ||
+ inftl_read_oob(mtd, block * s->EraseSize +
+ 2 * SECTORSIZE + 8, 8, &retlen,
+ (char *)&h1) < 0) {
/* Should never happen? */
do_format_chain++;
break;
@@ -714,17 +708,14 @@ int INFTL_mount(struct INFTLrecord *s)
logical_block = BLOCK_NIL;
}
-#ifdef CONFIG_MTD_DEBUG_VERBOSE
- if (CONFIG_MTD_DEBUG_VERBOSE >= 2)
- INFTL_dumptables(s);
-#endif
+ INFTL_dumptables(s);
/*
* Second pass, check for infinite loops in chains. These are
* possible because we don't update the previous pointers when
* we fold chains. No big deal, just fix them up in PUtable.
*/
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: pass 2, validate virtual chains\n");
+ pr_debug("INFTL: pass 2, validate virtual chains\n");
for (logical_block = 0; logical_block < s->numvunits; logical_block++) {
block = s->VUtable[logical_block];
last_block = BLOCK_NIL;
@@ -742,7 +733,7 @@ int INFTL_mount(struct INFTLrecord *s)
"in virtual chain %d\n",
s->PUtable[block], logical_block);
s->PUtable[block] = BLOCK_NIL;
-
+
}
if (ANACtable[block] != ANAC) {
/*
@@ -769,12 +760,8 @@ int INFTL_mount(struct INFTLrecord *s)
}
}
-#ifdef CONFIG_MTD_DEBUG_VERBOSE
- if (CONFIG_MTD_DEBUG_VERBOSE >= 2)
- INFTL_dumptables(s);
- if (CONFIG_MTD_DEBUG_VERBOSE >= 2)
- INFTL_dumpVUchains(s);
-#endif
+ INFTL_dumptables(s);
+ INFTL_dumpVUchains(s);
/*
* Third pass, format unreferenced blocks and init free block count.
@@ -782,7 +769,7 @@ int INFTL_mount(struct INFTLrecord *s)
s->numfreeEUNs = 0;
s->LastFreeEUN = BLOCK_NIL;
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: pass 3, format unused blocks\n");
+ pr_debug("INFTL: pass 3, format unused blocks\n");
for (block = s->firstEUN; block <= s->lastEUN; block++) {
if (s->PUtable[block] == BLOCK_NOTEXPLORED) {
printk("INFTL: unreferenced block %d, formatting it\n",
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 20:59:08 +0000