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path: root/drivers/mtd/rfd_ftl.c
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Diffstat (limited to 'drivers/mtd/rfd_ftl.c')
-rw-r--r--drivers/mtd/rfd_ftl.c114
1 files changed, 57 insertions, 57 deletions
diff --git a/drivers/mtd/rfd_ftl.c b/drivers/mtd/rfd_ftl.c
index 7b9f359f04b7..041ee59ea77d 100644
--- a/drivers/mtd/rfd_ftl.c
+++ b/drivers/mtd/rfd_ftl.c
@@ -3,7 +3,7 @@
*
* Copyright (C) 2005 Sean Young <sean@mess.org>
*
- * $Id: rfd_ftl.c,v 1.4 2005/07/31 22:49:14 sean Exp $
+ * $Id: rfd_ftl.c,v 1.5 2005/11/07 11:14:21 gleixner Exp $
*
* This type of flash translation layer (FTL) is used by the Embedded BIOS
* by General Software. It is known as the Resident Flash Disk (RFD), see:
@@ -95,7 +95,7 @@ static int build_block_map(struct partition *part, int block_no)
{
struct block *block = &part->blocks[block_no];
int i;
-
+
block->offset = part->block_size * block_no;
if (le16_to_cpu(part->header_cache[0]) != RFD_MAGIC) {
@@ -109,12 +109,12 @@ static int build_block_map(struct partition *part, int block_no)
for (i=0; i<part->data_sectors_per_block; i++) {
u16 entry;
-
+
entry = le16_to_cpu(part->header_cache[HEADER_MAP_OFFSET + i]);
if (entry == SECTOR_DELETED)
continue;
-
+
if (entry == SECTOR_FREE) {
block->free_sectors++;
continue;
@@ -122,9 +122,9 @@ static int build_block_map(struct partition *part, int block_no)
if (entry == SECTOR_ZERO)
entry = 0;
-
+
if (entry >= part->sector_count) {
- printk(KERN_NOTICE PREFIX
+ printk(KERN_NOTICE PREFIX
"'%s': unit #%d: entry %d corrupt, "
"sector %d out of range\n",
part->mbd.mtd->name, block_no, i, entry);
@@ -132,14 +132,14 @@ static int build_block_map(struct partition *part, int block_no)
}
if (part->sector_map[entry] != -1) {
- printk(KERN_NOTICE PREFIX
+ printk(KERN_NOTICE PREFIX
"'%s': more than one entry for sector %d\n",
part->mbd.mtd->name, entry);
part->errors = 1;
continue;
}
- part->sector_map[entry] = block->offset +
+ part->sector_map[entry] = block->offset +
(i + part->header_sectors_per_block) * SECTOR_SIZE;
block->used_sectors++;
@@ -165,14 +165,14 @@ static int scan_header(struct partition *part)
return -ENOENT;
/* each erase block has three bytes header, followed by the map */
- part->header_sectors_per_block =
- ((HEADER_MAP_OFFSET + sectors_per_block) *
+ part->header_sectors_per_block =
+ ((HEADER_MAP_OFFSET + sectors_per_block) *
sizeof(u16) + SECTOR_SIZE - 1) / SECTOR_SIZE;
- part->data_sectors_per_block = sectors_per_block -
+ part->data_sectors_per_block = sectors_per_block -
part->header_sectors_per_block;
- part->header_size = (HEADER_MAP_OFFSET +
+ part->header_size = (HEADER_MAP_OFFSET +
part->data_sectors_per_block) * sizeof(u16);
part->cylinders = (part->data_sectors_per_block *
@@ -188,7 +188,7 @@ static int scan_header(struct partition *part)
if (!part->header_cache)
goto err;
- part->blocks = kcalloc(part->total_blocks, sizeof(struct block),
+ part->blocks = kcalloc(part->total_blocks, sizeof(struct block),
GFP_KERNEL);
if (!part->blocks)
goto err;
@@ -200,18 +200,18 @@ static int scan_header(struct partition *part)
goto err;
}
- for (i=0; i<part->sector_count; i++)
+ for (i=0; i<part->sector_count; i++)
part->sector_map[i] = -1;
for (i=0, blocks_found=0; i<part->total_blocks; i++) {
- rc = part->mbd.mtd->read(part->mbd.mtd,
+ rc = part->mbd.mtd->read(part->mbd.mtd,
i * part->block_size, part->header_size,
&retlen, (u_char*)part->header_cache);
if (!rc && retlen != part->header_size)
rc = -EIO;
- if (rc)
+ if (rc)
goto err;
if (!build_block_map(part, i))
@@ -226,7 +226,7 @@ static int scan_header(struct partition *part)
}
if (part->reserved_block == -1) {
- printk(KERN_NOTICE PREFIX "'%s': no empty erase unit found\n",
+ printk(KERN_NOTICE PREFIX "'%s': no empty erase unit found\n",
part->mbd.mtd->name);
part->errors = 1;
@@ -248,7 +248,7 @@ static int rfd_ftl_readsect(struct mtd_blktrans_dev *dev, u_long sector, char *b
u_long addr;
size_t retlen;
int rc;
-
+
if (sector >= part->sector_count)
return -EIO;
@@ -266,9 +266,9 @@ static int rfd_ftl_readsect(struct mtd_blktrans_dev *dev, u_long sector, char *b
}
} else
memset(buf, 0, SECTOR_SIZE);
-
+
return 0;
-}
+}
static void erase_callback(struct erase_info *erase)
{
@@ -288,7 +288,7 @@ static void erase_callback(struct erase_info *erase)
if (erase->state != MTD_ERASE_DONE) {
printk(KERN_WARNING PREFIX "erase failed at 0x%x on '%s', "
- "state %d\n", erase->addr,
+ "state %d\n", erase->addr,
part->mbd.mtd->name, erase->state);
part->blocks[i].state = BLOCK_FAILED;
@@ -307,17 +307,17 @@ static void erase_callback(struct erase_info *erase)
part->blocks[i].used_sectors = 0;
part->blocks[i].erases++;
- rc = part->mbd.mtd->write(part->mbd.mtd,
- part->blocks[i].offset, sizeof(magic), &retlen,
+ rc = part->mbd.mtd->write(part->mbd.mtd,
+ part->blocks[i].offset, sizeof(magic), &retlen,
(u_char*)&magic);
-
+
if (!rc && retlen != sizeof(magic))
rc = -EIO;
if (rc) {
printk(KERN_NOTICE PREFIX "'%s': unable to write RFD "
"header at 0x%lx\n",
- part->mbd.mtd->name,
+ part->mbd.mtd->name,
part->blocks[i].offset);
part->blocks[i].state = BLOCK_FAILED;
}
@@ -374,17 +374,17 @@ static int move_block_contents(struct partition *part, int block_no, u_long *old
map = kmalloc(part->header_size, GFP_KERNEL);
if (!map)
goto err2;
-
- rc = part->mbd.mtd->read(part->mbd.mtd,
- part->blocks[block_no].offset, part->header_size,
+
+ rc = part->mbd.mtd->read(part->mbd.mtd,
+ part->blocks[block_no].offset, part->header_size,
&retlen, (u_char*)map);
-
+
if (!rc && retlen != part->header_size)
rc = -EIO;
if (rc) {
printk(KERN_NOTICE PREFIX "error reading '%s' at "
- "0x%lx\n", part->mbd.mtd->name,
+ "0x%lx\n", part->mbd.mtd->name,
part->blocks[block_no].offset);
goto err;
@@ -398,11 +398,11 @@ static int move_block_contents(struct partition *part, int block_no, u_long *old
if (entry == SECTOR_FREE || entry == SECTOR_DELETED)
continue;
- if (entry == SECTOR_ZERO)
+ if (entry == SECTOR_ZERO)
entry = 0;
/* already warned about and ignored in build_block_map() */
- if (entry >= part->sector_count)
+ if (entry >= part->sector_count)
continue;
addr = part->blocks[block_no].offset +
@@ -418,7 +418,7 @@ static int move_block_contents(struct partition *part, int block_no, u_long *old
}
rc = part->mbd.mtd->read(part->mbd.mtd, addr,
SECTOR_SIZE, &retlen, sector_data);
-
+
if (!rc && retlen != SECTOR_SIZE)
rc = -EIO;
@@ -429,11 +429,11 @@ static int move_block_contents(struct partition *part, int block_no, u_long *old
goto err;
}
-
+
rc = rfd_ftl_writesect((struct mtd_blktrans_dev*)part,
entry, sector_data);
-
- if (rc)
+
+ if (rc)
goto err;
}
@@ -447,11 +447,11 @@ err3:
return rc;
}
-static int reclaim_block(struct partition *part, u_long *old_sector)
+static int reclaim_block(struct partition *part, u_long *old_sector)
{
int block, best_block, score, old_sector_block;
int rc;
-
+
/* we have a race if sync doesn't exist */
if (part->mbd.mtd->sync)
part->mbd.mtd->sync(part->mbd.mtd);
@@ -474,16 +474,16 @@ static int reclaim_block(struct partition *part, u_long *old_sector)
* more removed sectors is more efficient (have to move
* less).
*/
- if (part->blocks[block].free_sectors)
+ if (part->blocks[block].free_sectors)
return 0;
this_score = part->blocks[block].used_sectors;
- if (block == old_sector_block)
+ if (block == old_sector_block)
this_score--;
else {
/* no point in moving a full block */
- if (part->blocks[block].used_sectors ==
+ if (part->blocks[block].used_sectors ==
part->data_sectors_per_block)
continue;
}
@@ -529,7 +529,7 @@ static int find_free_block(const struct partition *part)
stop = block;
do {
- if (part->blocks[block].free_sectors &&
+ if (part->blocks[block].free_sectors &&
block != part->reserved_block)
return block;
@@ -563,7 +563,7 @@ static int find_writeable_block(struct partition *part, u_long *old_sector)
}
}
- rc = part->mbd.mtd->read(part->mbd.mtd, part->blocks[block].offset,
+ rc = part->mbd.mtd->read(part->mbd.mtd, part->blocks[block].offset,
part->header_size, &retlen, (u_char*)part->header_cache);
if (!rc && retlen != part->header_size)
@@ -571,7 +571,7 @@ static int find_writeable_block(struct partition *part, u_long *old_sector)
if (rc) {
printk(KERN_NOTICE PREFIX "'%s': unable to read header at "
- "0x%lx\n", part->mbd.mtd->name,
+ "0x%lx\n", part->mbd.mtd->name,
part->blocks[block].offset);
goto err;
}
@@ -580,7 +580,7 @@ static int find_writeable_block(struct partition *part, u_long *old_sector)
err:
return rc;
-}
+}
static int mark_sector_deleted(struct partition *part, u_long old_addr)
{
@@ -590,7 +590,7 @@ static int mark_sector_deleted(struct partition *part, u_long old_addr)
u16 del = const_cpu_to_le16(SECTOR_DELETED);
block = old_addr / part->block_size;
- offset = (old_addr % part->block_size) / SECTOR_SIZE -
+ offset = (old_addr % part->block_size) / SECTOR_SIZE -
part->header_sectors_per_block;
addr = part->blocks[block].offset +
@@ -604,7 +604,7 @@ static int mark_sector_deleted(struct partition *part, u_long old_addr)
if (rc) {
printk(KERN_WARNING PREFIX "error writing '%s' at "
"0x%lx\n", part->mbd.mtd->name, addr);
- if (rc)
+ if (rc)
goto err;
}
if (block == part->current_block)
@@ -627,7 +627,7 @@ static int find_free_sector(const struct partition *part, const struct block *bl
i = stop = part->data_sectors_per_block - block->free_sectors;
do {
- if (le16_to_cpu(part->header_cache[HEADER_MAP_OFFSET + i])
+ if (le16_to_cpu(part->header_cache[HEADER_MAP_OFFSET + i])
== SECTOR_FREE)
return i;
@@ -653,7 +653,7 @@ static int do_writesect(struct mtd_blktrans_dev *dev, u_long sector, char *buf,
!part->blocks[part->current_block].free_sectors) {
rc = find_writeable_block(part, old_addr);
- if (rc)
+ if (rc)
goto err;
}
@@ -665,10 +665,10 @@ static int do_writesect(struct mtd_blktrans_dev *dev, u_long sector, char *buf,
rc = -ENOSPC;
goto err;
}
-
- addr = (i + part->header_sectors_per_block) * SECTOR_SIZE +
+
+ addr = (i + part->header_sectors_per_block) * SECTOR_SIZE +
block->offset;
- rc = part->mbd.mtd->write(part->mbd.mtd,
+ rc = part->mbd.mtd->write(part->mbd.mtd,
addr, SECTOR_SIZE, &retlen, (u_char*)buf);
if (!rc && retlen != SECTOR_SIZE)
@@ -677,7 +677,7 @@ static int do_writesect(struct mtd_blktrans_dev *dev, u_long sector, char *buf,
if (rc) {
printk(KERN_WARNING PREFIX "error writing '%s' at 0x%lx\n",
part->mbd.mtd->name, addr);
- if (rc)
+ if (rc)
goto err;
}
@@ -697,7 +697,7 @@ static int do_writesect(struct mtd_blktrans_dev *dev, u_long sector, char *buf,
if (rc) {
printk(KERN_WARNING PREFIX "error writing '%s' at 0x%lx\n",
part->mbd.mtd->name, addr);
- if (rc)
+ if (rc)
goto err;
}
block->used_sectors++;
@@ -738,7 +738,7 @@ static int rfd_ftl_writesect(struct mtd_blktrans_dev *dev, u_long sector, char *
break;
}
- if (i == SECTOR_SIZE)
+ if (i == SECTOR_SIZE)
part->sector_map[sector] = -1;
if (old_addr != -1)
@@ -801,7 +801,7 @@ static void rfd_ftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
if (!add_mtd_blktrans_dev((void*)part))
return;
- }
+ }
kfree(part);
}
@@ -828,7 +828,7 @@ struct mtd_blktrans_ops rfd_ftl_tr = {
.major = RFD_FTL_MAJOR,
.part_bits = PART_BITS,
.readsect = rfd_ftl_readsect,
- .writesect = rfd_ftl_writesect,
+ .writesect = rfd_ftl_writesect,
.getgeo = rfd_ftl_getgeo,
.add_mtd = rfd_ftl_add_mtd,
.remove_dev = rfd_ftl_remove_dev,