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Diffstat (limited to 'drivers/mtd/inftlcore.c')
-rw-r--r--drivers/mtd/inftlcore.c344
1 files changed, 200 insertions, 144 deletions
diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c
index 39eb53f6551..b66b541877f 100644
--- a/drivers/mtd/inftlcore.c
+++ b/drivers/mtd/inftlcore.c
@@ -1,13 +1,11 @@
-/*
+/*
* inftlcore.c -- Linux driver for Inverse Flash Translation Layer (INFTL)
*
- * (C) Copyright 2002, Greg Ungerer (gerg@snapgear.com)
+ * Copyright © 2002, Greg Ungerer (gerg@snapgear.com)
*
* Based heavily on the nftlcore.c code which is:
- * (c) 1999 Machine Vision Holdings, Inc.
- * Author: David Woodhouse <dwmw2@infradead.org>
- *
- * $Id: inftlcore.c,v 1.18 2004/11/16 18:28:59 dwmw2 Exp $
+ * Copyright © 1999 Machine Vision Holdings, Inc.
+ * Copyright © 1999 David Woodhouse <dwmw2@infradead.org>
*
* 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
@@ -24,7 +22,6 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/delay.h>
@@ -36,6 +33,7 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/nftl.h>
#include <linux/mtd/inftl.h>
+#include <linux/mtd/nand.h>
#include <asm/uaccess.h>
#include <asm/errno.h>
#include <asm/io.h>
@@ -47,49 +45,41 @@
*/
#define MAX_LOOPS 10000
-extern void INFTL_dumptables(struct INFTLrecord *inftl);
-extern void INFTL_dumpVUchains(struct INFTLrecord *inftl);
-
static void inftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
{
struct INFTLrecord *inftl;
unsigned long temp;
- if (mtd->type != MTD_NANDFLASH)
+ if (!mtd_type_is_nand(mtd) || mtd->size > UINT_MAX)
return;
/* OK, this is moderately ugly. But probably safe. Alternatives? */
if (memcmp(mtd->name, "DiskOnChip", 10))
return;
- if (!mtd->block_isbad) {
+ if (!mtd->_block_isbad) {
printk(KERN_ERR
"INFTL no longer supports the old DiskOnChip drivers loaded via docprobe.\n"
"Please use the new diskonchip driver under the NAND subsystem.\n");
return;
}
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: add_mtd for %s\n", mtd->name);
+ pr_debug("INFTL: add_mtd for %s\n", mtd->name);
- inftl = kmalloc(sizeof(*inftl), GFP_KERNEL);
+ inftl = kzalloc(sizeof(*inftl), GFP_KERNEL);
- if (!inftl) {
- printk(KERN_WARNING "INFTL: Out of memory for data structures\n");
+ if (!inftl)
return;
- }
- memset(inftl, 0, sizeof(*inftl));
inftl->mbd.mtd = mtd;
inftl->mbd.devnum = -1;
- inftl->mbd.blksize = 512;
+
inftl->mbd.tr = tr;
- memcpy(&inftl->oobinfo, &mtd->oobinfo, sizeof(struct nand_oobinfo));
- inftl->oobinfo.useecc = MTD_NANDECC_PLACEONLY;
- if (INFTL_mount(inftl) < 0) {
+ if (INFTL_mount(inftl) < 0) {
printk(KERN_WARNING "INFTL: could not mount device\n");
kfree(inftl);
return;
- }
+ }
/* OK, it's a new one. Set up all the data structures. */
@@ -113,28 +103,26 @@ static void inftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
if (inftl->mbd.size != inftl->heads * inftl->cylinders * inftl->sectors) {
/*
- Oh no we don't have
+ Oh no we don't have
mbd.size == heads * cylinders * sectors
*/
printk(KERN_WARNING "INFTL: cannot calculate a geometry to "
"match size of 0x%lx.\n", inftl->mbd.size);
printk(KERN_WARNING "INFTL: using C:%d H:%d S:%d "
"(== 0x%lx sects)\n",
- inftl->cylinders, inftl->heads , inftl->sectors,
+ inftl->cylinders, inftl->heads , inftl->sectors,
(long)inftl->cylinders * (long)inftl->heads *
(long)inftl->sectors );
}
if (add_mtd_blktrans_dev(&inftl->mbd)) {
- if (inftl->PUtable)
- kfree(inftl->PUtable);
- if (inftl->VUtable)
- kfree(inftl->VUtable);
+ kfree(inftl->PUtable);
+ kfree(inftl->VUtable);
kfree(inftl);
return;
}
#ifdef PSYCHO_DEBUG
- printk(KERN_INFO "INFTL: Found new nftl%c\n", nftl->mbd.devnum + 'a');
+ printk(KERN_INFO "INFTL: Found new inftl%c\n", inftl->mbd.devnum + 'a');
#endif
return;
}
@@ -143,15 +131,12 @@ static void inftl_remove_dev(struct mtd_blktrans_dev *dev)
{
struct INFTLrecord *inftl = (void *)dev;
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: remove_dev (i=%d)\n", dev->devnum);
+ pr_debug("INFTL: remove_dev (i=%d)\n", dev->devnum);
del_mtd_blktrans_dev(dev);
- if (inftl->PUtable)
- kfree(inftl->PUtable);
- if (inftl->VUtable)
- kfree(inftl->VUtable);
- kfree(inftl);
+ kfree(inftl->PUtable);
+ kfree(inftl->VUtable);
}
/*
@@ -159,6 +144,67 @@ static void inftl_remove_dev(struct mtd_blktrans_dev *dev)
*/
/*
+ * Read oob data from flash
+ */
+int inftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len,
+ size_t *retlen, uint8_t *buf)
+{
+ struct mtd_oob_ops ops;
+ int res;
+
+ ops.mode = MTD_OPS_PLACE_OOB;
+ ops.ooboffs = offs & (mtd->writesize - 1);
+ ops.ooblen = len;
+ ops.oobbuf = buf;
+ ops.datbuf = NULL;
+
+ res = mtd_read_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
+ *retlen = ops.oobretlen;
+ return res;
+}
+
+/*
+ * Write oob data to flash
+ */
+int inftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len,
+ size_t *retlen, uint8_t *buf)
+{
+ struct mtd_oob_ops ops;
+ int res;
+
+ ops.mode = MTD_OPS_PLACE_OOB;
+ ops.ooboffs = offs & (mtd->writesize - 1);
+ ops.ooblen = len;
+ ops.oobbuf = buf;
+ ops.datbuf = NULL;
+
+ res = mtd_write_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
+ *retlen = ops.oobretlen;
+ return res;
+}
+
+/*
+ * Write data and oob to flash
+ */
+static int inftl_write(struct mtd_info *mtd, loff_t offs, size_t len,
+ size_t *retlen, uint8_t *buf, uint8_t *oob)
+{
+ struct mtd_oob_ops ops;
+ int res;
+
+ ops.mode = MTD_OPS_PLACE_OOB;
+ ops.ooboffs = offs;
+ ops.ooblen = mtd->oobsize;
+ ops.oobbuf = oob;
+ ops.datbuf = buf;
+ ops.len = len;
+
+ res = mtd_write_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
+ *retlen = ops.retlen;
+ return res;
+}
+
+/*
* INFTL_findfreeblock: Find a free Erase Unit on the INFTL partition.
* This function is used when the give Virtual Unit Chain.
*/
@@ -167,17 +213,17 @@ static u16 INFTL_findfreeblock(struct INFTLrecord *inftl, int desperate)
u16 pot = inftl->LastFreeEUN;
int silly = inftl->nb_blocks;
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_findfreeblock(inftl=%p,"
- "desperate=%d)\n", inftl, desperate);
+ pr_debug("INFTL: INFTL_findfreeblock(inftl=%p,desperate=%d)\n",
+ inftl, desperate);
/*
* Normally, we force a fold to happen before we run out of free
* blocks completely.
*/
if (!desperate && inftl->numfreeEUNs < 2) {
- DEBUG(MTD_DEBUG_LEVEL1, "INFTL: there are too few free "
- "EUNs (%d)\n", inftl->numfreeEUNs);
- return 0xffff;
+ pr_debug("INFTL: there are too few free EUNs (%d)\n",
+ inftl->numfreeEUNs);
+ return BLOCK_NIL;
}
/* Scan for a free block */
@@ -205,13 +251,14 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
u16 BlockMap[MAX_SECTORS_PER_UNIT];
unsigned char BlockDeleted[MAX_SECTORS_PER_UNIT];
unsigned int thisEUN, prevEUN, status;
+ struct mtd_info *mtd = inftl->mbd.mtd;
int block, silly;
unsigned int targetEUN;
struct inftl_oob oob;
- size_t retlen;
+ size_t retlen;
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_foldchain(inftl=%p,thisVUC=%d,"
- "pending=%d)\n", inftl, thisVUC, pendingblock);
+ pr_debug("INFTL: INFTL_foldchain(inftl=%p,thisVUC=%d,pending=%d)\n",
+ inftl, thisVUC, pendingblock);
memset(BlockMap, 0xff, sizeof(BlockMap));
memset(BlockDeleted, 0, sizeof(BlockDeleted));
@@ -223,23 +270,24 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
"Virtual Unit Chain %d!\n", thisVUC);
return BLOCK_NIL;
}
-
+
/*
* Scan to find the Erase Unit which holds the actual data for each
* 512-byte block within the Chain.
*/
- silly = MAX_LOOPS;
+ silly = MAX_LOOPS;
while (thisEUN < inftl->nb_blocks) {
for (block = 0; block < inftl->EraseSize/SECTORSIZE; block ++) {
- if ((BlockMap[block] != 0xffff) || BlockDeleted[block])
+ if ((BlockMap[block] != BLOCK_NIL) ||
+ BlockDeleted[block])
continue;
- if (MTD_READOOB(inftl->mbd.mtd, (thisEUN * inftl->EraseSize)
- + (block * SECTORSIZE), 16 , &retlen,
- (char *)&oob) < 0)
+ if (inftl_read_oob(mtd, (thisEUN * inftl->EraseSize)
+ + (block * SECTORSIZE), 16, &retlen,
+ (char *)&oob) < 0)
status = SECTOR_IGNORE;
else
- status = oob.b.Status | oob.b.Status1;
+ status = oob.b.Status | oob.b.Status1;
switch(status) {
case SECTOR_FREE:
@@ -264,7 +312,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
"Unit Chain 0x%x\n", thisVUC);
return BLOCK_NIL;
}
-
+
thisEUN = inftl->PUtable[thisEUN];
}
@@ -273,8 +321,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
* Chain, and the Erase Unit into which we are supposed to be copying.
* Go for it.
*/
- DEBUG(MTD_DEBUG_LEVEL1, "INFTL: folding chain %d into unit %d\n",
- thisVUC, targetEUN);
+ pr_debug("INFTL: folding chain %d into unit %d\n", thisVUC, targetEUN);
for (block = 0; block < inftl->EraseSize/SECTORSIZE ; block++) {
unsigned char movebuf[SECTORSIZE];
@@ -289,29 +336,33 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
continue;
}
- /*
+ /*
* Copy only in non free block (free blocks can only
* happen in case of media errors or deleted blocks).
*/
- if (BlockMap[block] == BLOCK_NIL)
- continue;
-
- ret = MTD_READ(inftl->mbd.mtd, (inftl->EraseSize *
- BlockMap[block]) + (block * SECTORSIZE), SECTORSIZE,
- &retlen, movebuf);
- if (ret < 0) {
- ret = MTD_READ(inftl->mbd.mtd, (inftl->EraseSize *
- BlockMap[block]) + (block * SECTORSIZE),
- SECTORSIZE, &retlen, movebuf);
- if (ret != -EIO)
- DEBUG(MTD_DEBUG_LEVEL1, "INFTL: error went "
- "away on retry?\n");
- }
- memset(&oob, 0xff, sizeof(struct inftl_oob));
- oob.b.Status = oob.b.Status1 = SECTOR_USED;
- MTD_WRITEECC(inftl->mbd.mtd, (inftl->EraseSize * targetEUN) +
- (block * SECTORSIZE), SECTORSIZE, &retlen,
- movebuf, (char *)&oob, &inftl->oobinfo);
+ if (BlockMap[block] == BLOCK_NIL)
+ continue;
+
+ ret = mtd_read(mtd,
+ (inftl->EraseSize * BlockMap[block]) + (block * SECTORSIZE),
+ SECTORSIZE,
+ &retlen,
+ movebuf);
+ if (ret < 0 && !mtd_is_bitflip(ret)) {
+ ret = mtd_read(mtd,
+ (inftl->EraseSize * BlockMap[block]) + (block * SECTORSIZE),
+ SECTORSIZE,
+ &retlen,
+ movebuf);
+ if (ret != -EIO)
+ pr_debug("INFTL: error went away on retry?\n");
+ }
+ memset(&oob, 0xff, sizeof(struct inftl_oob));
+ oob.b.Status = oob.b.Status1 = SECTOR_USED;
+
+ inftl_write(inftl->mbd.mtd, (inftl->EraseSize * targetEUN) +
+ (block * SECTORSIZE), SECTORSIZE, &retlen,
+ movebuf, (char *)&oob);
}
/*
@@ -320,8 +371,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
* is important, by doing oldest first if we crash/reboot then it
* it is relatively simple to clean up the mess).
*/
- DEBUG(MTD_DEBUG_LEVEL1, "INFTL: want to erase virtual chain %d\n",
- thisVUC);
+ pr_debug("INFTL: want to erase virtual chain %d\n", thisVUC);
for (;;) {
/* Find oldest unit in chain. */
@@ -336,17 +386,20 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
if (thisEUN == targetEUN)
break;
- if (INFTL_formatblock(inftl, thisEUN) < 0) {
+ /* Unlink the last block from the chain. */
+ inftl->PUtable[prevEUN] = BLOCK_NIL;
+
+ /* Now try to erase it. */
+ if (INFTL_formatblock(inftl, thisEUN) < 0) {
/*
* Could not erase : mark block as reserved.
*/
inftl->PUtable[thisEUN] = BLOCK_RESERVED;
- } else {
+ } else {
/* Correctly erased : mark it as free */
inftl->PUtable[thisEUN] = BLOCK_FREE;
- inftl->PUtable[prevEUN] = BLOCK_NIL;
inftl->numfreeEUNs++;
- }
+ }
}
return targetEUN;
@@ -355,7 +408,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
static u16 INFTL_makefreeblock(struct INFTLrecord *inftl, unsigned pendingblock)
{
/*
- * This is the part that needs some cleverness applied.
+ * This is the part that needs some cleverness applied.
* For now, I'm doing the minimum applicable to actually
* get the thing to work.
* Wear-levelling and other clever stuff needs to be implemented
@@ -366,7 +419,7 @@ static u16 INFTL_makefreeblock(struct INFTLrecord *inftl, unsigned pendingblock)
u16 ChainLength = 0, thislen;
u16 chain, EUN;
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_makefreeblock(inftl=%p,"
+ pr_debug("INFTL: INFTL_makefreeblock(inftl=%p,"
"pending=%d)\n", inftl, pendingblock);
for (chain = 0; chain < inftl->nb_blocks; chain++) {
@@ -414,7 +467,7 @@ static int nrbits(unsigned int val, int bitcount)
}
/*
- * INFTL_findwriteunit: Return the unit number into which we can write
+ * INFTL_findwriteunit: Return the unit number into which we can write
* for this block. Make it available if it isn't already.
*/
static inline u16 INFTL_findwriteunit(struct INFTLrecord *inftl, unsigned block)
@@ -422,14 +475,15 @@ static inline u16 INFTL_findwriteunit(struct INFTLrecord *inftl, unsigned block)
unsigned int thisVUC = block / (inftl->EraseSize / SECTORSIZE);
unsigned int thisEUN, writeEUN, prev_block, status;
unsigned long blockofs = (block * SECTORSIZE) & (inftl->EraseSize -1);
+ struct mtd_info *mtd = inftl->mbd.mtd;
struct inftl_oob oob;
struct inftl_bci bci;
unsigned char anac, nacs, parity;
size_t retlen;
int silly, silly2 = 3;
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_findwriteunit(inftl=%p,"
- "block=%d)\n", inftl, block);
+ pr_debug("INFTL: INFTL_findwriteunit(inftl=%p,block=%d)\n",
+ inftl, block);
do {
/*
@@ -441,12 +495,12 @@ static inline u16 INFTL_findwriteunit(struct INFTLrecord *inftl, unsigned block)
silly = MAX_LOOPS;
while (thisEUN <= inftl->lastEUN) {
- MTD_READOOB(inftl->mbd.mtd, (thisEUN * inftl->EraseSize) +
- blockofs, 8, &retlen, (char *)&bci);
+ inftl_read_oob(mtd, (thisEUN * inftl->EraseSize) +
+ blockofs, 8, &retlen, (char *)&bci);
- status = bci.Status | bci.Status1;
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: status of block %d in "
- "EUN %d is %x\n", block , writeEUN, status);
+ status = bci.Status | bci.Status1;
+ pr_debug("INFTL: status of block %d in EUN %d is %x\n",
+ block , writeEUN, status);
switch(status) {
case SECTOR_FREE:
@@ -463,13 +517,13 @@ static inline u16 INFTL_findwriteunit(struct INFTLrecord *inftl, unsigned block)
* Invalid block. Don't use it any more.
* Must implement.
*/
- break;
+ break;
}
-
- if (!silly--) {
+
+ if (!silly--) {
printk(KERN_WARNING "INFTL: infinite loop in "
"Virtual Unit Chain 0x%x\n", thisVUC);
- return 0xffff;
+ return BLOCK_NIL;
}
/* Skip to next block in chain */
@@ -482,7 +536,7 @@ hitused:
/*
- * OK. We didn't find one in the existing chain, or there
+ * OK. We didn't find one in the existing chain, or there
* is no existing chain. Allocate a new one.
*/
writeEUN = INFTL_findfreeblock(inftl, 0);
@@ -493,21 +547,21 @@ hitused:
* waiting to be picked up. We're going to have to fold
* a chain to make room.
*/
- thisEUN = INFTL_makefreeblock(inftl, 0xffff);
+ thisEUN = INFTL_makefreeblock(inftl, block);
/*
* Hopefully we free something, lets try again.
* This time we are desperate...
*/
- DEBUG(MTD_DEBUG_LEVEL1, "INFTL: using desperate==1 "
- "to find free EUN to accommodate write to "
- "VUC %d\n", thisVUC);
+ pr_debug("INFTL: using desperate==1 to find free EUN "
+ "to accommodate write to VUC %d\n",
+ thisVUC);
writeEUN = INFTL_findfreeblock(inftl, 1);
if (writeEUN == BLOCK_NIL) {
/*
* Ouch. This should never happen - we should
- * always be able to make some room somehow.
- * If we get here, we've allocated more storage
+ * always be able to make some room somehow.
+ * If we get here, we've allocated more storage
* space than actual media, or our makefreeblock
* routine is missing something.
*/
@@ -518,7 +572,7 @@ hitused:
INFTL_dumpVUchains(inftl);
#endif
return BLOCK_NIL;
- }
+ }
}
/*
@@ -529,8 +583,8 @@ hitused:
nacs = 0;
thisEUN = inftl->VUtable[thisVUC];
if (thisEUN != BLOCK_NIL) {
- MTD_READOOB(inftl->mbd.mtd, thisEUN * inftl->EraseSize
- + 8, 8, &retlen, (char *)&oob.u);
+ inftl_read_oob(mtd, thisEUN * inftl->EraseSize
+ + 8, 8, &retlen, (char *)&oob.u);
anac = oob.u.a.ANAC + 1;
nacs = oob.u.a.NACs + 1;
}
@@ -543,7 +597,7 @@ hitused:
parity |= (nrbits(prev_block, 16) & 0x1) ? 0x2 : 0;
parity |= (nrbits(anac, 8) & 0x1) ? 0x4 : 0;
parity |= (nrbits(nacs, 8) & 0x1) ? 0x8 : 0;
-
+
oob.u.a.virtualUnitNo = cpu_to_le16(thisVUC);
oob.u.a.prevUnitNo = cpu_to_le16(prev_block);
oob.u.a.ANAC = anac;
@@ -551,8 +605,8 @@ hitused:
oob.u.a.parityPerField = parity;
oob.u.a.discarded = 0xaa;
- MTD_WRITEOOB(inftl->mbd.mtd, writeEUN * inftl->EraseSize + 8, 8,
- &retlen, (char *)&oob.u);
+ inftl_write_oob(mtd, writeEUN * inftl->EraseSize + 8, 8,
+ &retlen, (char *)&oob.u);
/* Also back up header... */
oob.u.b.virtualUnitNo = cpu_to_le16(thisVUC);
@@ -562,8 +616,8 @@ hitused:
oob.u.b.parityPerField = parity;
oob.u.b.discarded = 0xaa;
- MTD_WRITEOOB(inftl->mbd.mtd, writeEUN * inftl->EraseSize +
- SECTORSIZE * 4 + 8, 8, &retlen, (char *)&oob.u);
+ inftl_write_oob(mtd, writeEUN * inftl->EraseSize +
+ SECTORSIZE * 4 + 8, 8, &retlen, (char *)&oob.u);
inftl->PUtable[writeEUN] = inftl->VUtable[thisVUC];
inftl->VUtable[thisVUC] = writeEUN;
@@ -575,7 +629,7 @@ hitused:
printk(KERN_WARNING "INFTL: error folding to make room for Virtual "
"Unit Chain 0x%x\n", thisVUC);
- return 0xffff;
+ return BLOCK_NIL;
}
/*
@@ -583,6 +637,7 @@ hitused:
*/
static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC)
{
+ struct mtd_info *mtd = inftl->mbd.mtd;
unsigned char BlockUsed[MAX_SECTORS_PER_UNIT];
unsigned char BlockDeleted[MAX_SECTORS_PER_UNIT];
unsigned int thisEUN, status;
@@ -590,7 +645,7 @@ static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC)
struct inftl_bci bci;
size_t retlen;
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_trydeletechain(inftl=%p,"
+ pr_debug("INFTL: INFTL_trydeletechain(inftl=%p,"
"thisVUC=%d)\n", inftl, thisVUC);
memset(BlockUsed, 0, sizeof(BlockUsed));
@@ -602,7 +657,7 @@ static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC)
"Virtual Unit Chain %d!\n", thisVUC);
return;
}
-
+
/*
* Scan through the Erase Units to determine whether any data is in
* each of the 512-byte blocks within the Chain.
@@ -613,9 +668,9 @@ static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC)
if (BlockUsed[block] || BlockDeleted[block])
continue;
- if (MTD_READOOB(inftl->mbd.mtd, (thisEUN * inftl->EraseSize)
- + (block * SECTORSIZE), 8 , &retlen,
- (char *)&bci) < 0)
+ if (inftl_read_oob(mtd, (thisEUN * inftl->EraseSize)
+ + (block * SECTORSIZE), 8 , &retlen,
+ (char *)&bci) < 0)
status = SECTOR_IGNORE;
else
status = bci.Status | bci.Status1;
@@ -642,7 +697,7 @@ static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC)
"Unit Chain 0x%x\n", thisVUC);
return;
}
-
+
thisEUN = inftl->PUtable[thisEUN];
}
@@ -654,7 +709,7 @@ static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC)
* For each block in the chain free it and make it available
* for future use. Erase from the oldest unit first.
*/
- DEBUG(MTD_DEBUG_LEVEL1, "INFTL: deleting empty VUC %d\n", thisVUC);
+ pr_debug("INFTL: deleting empty VUC %d\n", thisVUC);
for (;;) {
u16 *prevEUN = &inftl->VUtable[thisVUC];
@@ -662,7 +717,7 @@ static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC)
/* If the chain is all gone already, we're done */
if (thisEUN == BLOCK_NIL) {
- DEBUG(MTD_DEBUG_LEVEL2, "INFTL: Empty VUC %d for deletion was already absent\n", thisEUN);
+ pr_debug("INFTL: Empty VUC %d for deletion was already absent\n", thisEUN);
return;
}
@@ -674,15 +729,15 @@ static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC)
thisEUN = *prevEUN;
}
- DEBUG(MTD_DEBUG_LEVEL3, "Deleting EUN %d from VUC %d\n",
+ pr_debug("Deleting EUN %d from VUC %d\n",
thisEUN, thisVUC);
- if (INFTL_formatblock(inftl, thisEUN) < 0) {
+ if (INFTL_formatblock(inftl, thisEUN) < 0) {
/*
* Could not erase : mark block as reserved.
*/
inftl->PUtable[thisEUN] = BLOCK_RESERVED;
- } else {
+ } else {
/* Correctly erased : mark it as free */
inftl->PUtable[thisEUN] = BLOCK_FREE;
inftl->numfreeEUNs++;
@@ -704,17 +759,18 @@ static int INFTL_deleteblock(struct INFTLrecord *inftl, unsigned block)
{
unsigned int thisEUN = inftl->VUtable[block / (inftl->EraseSize / SECTORSIZE)];
unsigned long blockofs = (block * SECTORSIZE) & (inftl->EraseSize - 1);
+ struct mtd_info *mtd = inftl->mbd.mtd;
unsigned int status;
int silly = MAX_LOOPS;
size_t retlen;
struct inftl_bci bci;
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_deleteblock(inftl=%p,"
+ pr_debug("INFTL: INFTL_deleteblock(inftl=%p,"
"block=%d)\n", inftl, block);
while (thisEUN < inftl->nb_blocks) {
- if (MTD_READOOB(inftl->mbd.mtd, (thisEUN * inftl->EraseSize) +
- blockofs, 8, &retlen, (char *)&bci) < 0)
+ if (inftl_read_oob(mtd, (thisEUN * inftl->EraseSize) +
+ blockofs, 8, &retlen, (char *)&bci) < 0)
status = SECTOR_IGNORE;
else
status = bci.Status | bci.Status1;
@@ -748,17 +804,17 @@ foundit:
if (thisEUN != BLOCK_NIL) {
loff_t ptr = (thisEUN * inftl->EraseSize) + blockofs;
- if (MTD_READOOB(inftl->mbd.mtd, ptr, 8, &retlen, (char *)&bci) < 0)
+ if (inftl_read_oob(mtd, ptr, 8, &retlen, (char *)&bci) < 0)
return -EIO;
bci.Status = bci.Status1 = SECTOR_DELETED;
- if (MTD_WRITEOOB(inftl->mbd.mtd, ptr, 8, &retlen, (char *)&bci) < 0)
+ if (inftl_write_oob(mtd, ptr, 8, &retlen, (char *)&bci) < 0)
return -EIO;
INFTL_trydeletechain(inftl, block / (inftl->EraseSize / SECTORSIZE));
}
return 0;
}
-static int inftl_writeblock(struct mtd_blktrans_dev *mbd, unsigned long block,
+static int inftl_writeblock(struct mtd_blktrans_dev *mbd, unsigned long block,
char *buffer)
{
struct INFTLrecord *inftl = (void *)mbd;
@@ -768,7 +824,7 @@ static int inftl_writeblock(struct mtd_blktrans_dev *mbd, unsigned long block,
struct inftl_oob oob;
char *p, *pend;
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: inftl_writeblock(inftl=%p,block=%ld,"
+ pr_debug("INFTL: inftl_writeblock(inftl=%p,block=%ld,"
"buffer=%p)\n", inftl, block, buffer);
/* Is block all zero? */
@@ -791,9 +847,10 @@ static int inftl_writeblock(struct mtd_blktrans_dev *mbd, unsigned long block,
memset(&oob, 0xff, sizeof(struct inftl_oob));
oob.b.Status = oob.b.Status1 = SECTOR_USED;
- MTD_WRITEECC(inftl->mbd.mtd, (writeEUN * inftl->EraseSize) +
- blockofs, SECTORSIZE, &retlen, (char *)buffer,
- (char *)&oob, &inftl->oobinfo);
+
+ inftl_write(inftl->mbd.mtd, (writeEUN * inftl->EraseSize) +
+ blockofs, SECTORSIZE, &retlen, (char *)buffer,
+ (char *)&oob);
/*
* need to write SECTOR_USED flags since they are not written
* in mtd_writeecc
@@ -811,17 +868,18 @@ static int inftl_readblock(struct mtd_blktrans_dev *mbd, unsigned long block,
struct INFTLrecord *inftl = (void *)mbd;
unsigned int thisEUN = inftl->VUtable[block / (inftl->EraseSize / SECTORSIZE)];
unsigned long blockofs = (block * SECTORSIZE) & (inftl->EraseSize - 1);
- unsigned int status;
+ struct mtd_info *mtd = inftl->mbd.mtd;
+ unsigned int status;
int silly = MAX_LOOPS;
- struct inftl_bci bci;
+ struct inftl_bci bci;
size_t retlen;
- DEBUG(MTD_DEBUG_LEVEL3, "INFTL: inftl_readblock(inftl=%p,block=%ld,"
+ pr_debug("INFTL: inftl_readblock(inftl=%p,block=%ld,"
"buffer=%p)\n", inftl, block, buffer);
while (thisEUN < inftl->nb_blocks) {
- if (MTD_READOOB(inftl->mbd.mtd, (thisEUN * inftl->EraseSize) +
- blockofs, 8, &retlen, (char *)&bci) < 0)
+ if (inftl_read_oob(mtd, (thisEUN * inftl->EraseSize) +
+ blockofs, 8, &retlen, (char *)&bci) < 0)
status = SECTOR_IGNORE;
else
status = bci.Status | bci.Status1;
@@ -857,10 +915,12 @@ foundit:
/* The requested block is not on the media, return all 0x00 */
memset(buffer, 0, SECTORSIZE);
} else {
- size_t retlen;
+ size_t retlen;
loff_t ptr = (thisEUN * inftl->EraseSize) + blockofs;
- if (MTD_READ(inftl->mbd.mtd, ptr, SECTORSIZE, &retlen,
- buffer))
+ int ret = mtd_read(mtd, ptr, SECTORSIZE, &retlen, buffer);
+
+ /* Handle corrected bit flips gracefully */
+ if (ret < 0 && !mtd_is_bitflip(ret))
return -EIO;
}
return 0;
@@ -881,6 +941,7 @@ static struct mtd_blktrans_ops inftl_tr = {
.name = "inftl",
.major = INFTL_MAJOR,
.part_bits = INFTL_PARTN_BITS,
+ .blksize = 512,
.getgeo = inftl_getgeo,
.readsect = inftl_readblock,
.writesect = inftl_writeblock,
@@ -889,13 +950,8 @@ static struct mtd_blktrans_ops inftl_tr = {
.owner = THIS_MODULE,
};
-extern char inftlmountrev[];
-
static int __init init_inftl(void)
{
- printk(KERN_INFO "INFTL: inftlcore.c $Revision: 1.18 $, "
- "inftlmount.c %s\n", inftlmountrev);
-
return register_mtd_blktrans(&inftl_tr);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 00:13:07 +0000