static void do_dump_device(uffs_Device *dev)
{
URET ret;
int block, page;
uffs_Tags tag;
uffs_Buf *buf;
buf = uffs_BufClone(dev, NULL);
if (buf == NULL) {
MSGLN("Can't clone buf");
return;
}
for (block = dev->par.start; block <= dev->par.end; block++) {
MSG("---- block %d ----\n", block);
for (page = 0; page < dev->attr->pages_per_block; page++) {
MSG(" == page %d ==\n", page);
ret = uffs_FlashReadPage(dev, block, page, buf, U_FALSE);
if (UFFS_FLASH_HAVE_ERR(ret)) {
MSG(" !!! Read page failed, ret = %d !!!\n", ret);
}
else {
do_dump_page(dev, buf);
if (buf->header[0] != 0xFF) {
ret = uffs_FlashReadPageTag(dev, block, page, &tag);
if (UFFS_FLASH_HAVE_ERR(ret)) {
MSG(" !!! Read TAG failed, ret = %d !!!\n", ret);
}
else {
do_dump_tag(dev, &tag);
}
}
}
}
}
uffs_BufFreeClone(dev, buf);
}
/* usage: t_pgrw
*
* This test case test page read/write
*/
static int cmd_TestPageReadWrite(int argc, char *argv[])
{
TreeNode *node = NULL;
uffs_Device *dev;
uffs_Tags local_tag;
uffs_Tags *tag = &local_tag;
int ret;
u16 block;
u16 page;
uffs_Buf *buf = NULL;
u32 i;
int rc = -1;
dev = uffs_GetDeviceFromMountPoint("/");
if (!dev)
goto ext;
buf = uffs_BufClone(dev, NULL);
if (!buf)
goto ext;
node = uffs_TreeGetErasedNode(dev);
if (!node) {
MSGLN("no free block ?");
goto ext;
}
for (i = 0; i < dev->com.pg_data_size; i++) {
buf->data[i] = i & 0xFF;
}
block = node->u.list.block;
page = 1;
TAG_DIRTY_BIT(tag) = TAG_DIRTY;
TAG_VALID_BIT(tag) = TAG_VALID;
TAG_DATA_LEN(tag) = dev->com.pg_data_size;
TAG_TYPE(tag) = UFFS_TYPE_DATA;
TAG_PAGE_ID(tag) = 3;
TAG_PARENT(tag) = 100;
TAG_SERIAL(tag) = 10;
TAG_BLOCK_TS(tag) = 1;
SEAL_TAG(tag);
ret = uffs_FlashWritePageCombine(dev, block, page, buf, tag);
if (UFFS_FLASH_HAVE_ERR(ret)) {
MSGLN("Write page error: %d", ret);
goto ext;
}
ret = uffs_FlashReadPage(dev, block, page, buf, U_FALSE);
if (UFFS_FLASH_HAVE_ERR(ret)) {
MSGLN("Read page error: %d", ret);
goto ext;
}
for (i = 0; i < dev->com.pg_data_size; i++) {
if (buf->data[i] != (i & 0xFF)) {
MSGLN("Data verify fail at: %d", i);
goto ext;
}
}
ret = uffs_FlashReadPageTag(dev, block, page, tag);
if (UFFS_FLASH_HAVE_ERR(ret)) {
MSGLN("Read tag (page spare) error: %d", ret);
goto ext;
}
// verify tag:
if (!TAG_IS_SEALED(tag)) {
MSGLN("not sealed ? Tag verify fail!");
goto ext;
}
if (!TAG_IS_DIRTY(tag)) {
MSGLN("not dirty ? Tag verify fail!");
goto ext;
}
if (!TAG_IS_VALID(tag)) {
MSGLN("not valid ? Tag verify fail!");
goto ext;
}
if (TAG_DATA_LEN(tag) != dev->com.pg_data_size ||
TAG_TYPE(tag) != UFFS_TYPE_DATA ||
TAG_PAGE_ID(tag) != 3 ||
TAG_PARENT(tag) != 100 ||
TAG_SERIAL(tag) != 10 ||
TAG_BLOCK_TS(tag) != 1) {
MSGLN("Tag verify fail!");
goto ext;
}
MSGLN("Page read/write test succ.");
rc = 0;
ext:
if (node) {
uffs_TreeEraseNode(dev, node);
uffs_TreeInsertToErasedListTail(dev, node);
}
if (dev)
uffs_PutDevice(dev);
if (buf)
uffs_BufFreeClone(dev, buf);
return rc;
}
static URET _BuildValidTreeNode(uffs_Device *dev,
TreeNode *node, //!< empty node
uffs_BlockInfo *bc,
struct BlockTypeStatSt *st)
{
uffs_Tags *tag;
TreeNode *node_alt;
u16 block, parent, serial, block_alt, block_save;
uffs_BlockInfo *bc_alt;
u8 type;
int page;
UBOOL needToInsertToTree = U_FALSE;
uffs_Buf *buf = NULL;
uffs_FileInfo *info;
u16 data_sum = 0;
// check the first page on the block ...
uffs_BlockInfoLoad(dev, bc, 0);
tag = GET_TAG(bc, 0); //get first page's tag
if (!TAG_IS_DIRTY(tag)) {
// should never go here ... unless mark dirty page failed ?
uffs_Perror(UFFS_MSG_NORMAL,
"First page is clean in a non-erased block ?");
return U_FAIL;
}
if (!TAG_IS_VALID(tag)) {
//first page is invalid ? should be erased now!
uffs_Perror(UFFS_MSG_NORMAL,
"first page in block %d is invalid, will be erased now!",
bc->block);
goto process_invalid_block;
}
block = bc->block;
parent = TAG_PARENT(tag);
serial = TAG_SERIAL(tag);
type = TAG_TYPE(tag);
// check if there is an 'alternative block'
// (node which has the same serial number) in tree ?
node_alt = uffs_FindFromTree(dev, type, parent, serial);
if (node_alt != NULL) {
//find a alternate node ! need to check the timestamp !
block_alt = _GetBlockFromNode(type, node_alt);
uffs_Perror(UFFS_MSG_NORMAL,
"Process unclean block (%d vs %d)", block, block_alt);
if (block_alt == INVALID_UFFS_SERIAL) {
uffs_Perror(UFFS_MSG_SERIOUS, "invalid block ?");
return U_FAIL;
}
bc_alt = uffs_BlockInfoGet(dev, block_alt);
if (bc_alt == NULL) {
uffs_Perror(UFFS_MSG_SERIOUS, "can't get block info ");
return U_FAIL;
}
uffs_BlockInfoLoad(dev, bc_alt, 0);
if (uffs_IsSrcNewerThanObj (
TAG_BLOCK_TS(tag),
TAG_BLOCK_TS(GET_TAG(bc_alt, 0))) == U_TRUE) {
//the node is newer than node_alt, so keep node_alt, and erase node
uffs_FlashEraseBlock(dev, block);
node->u.list.block = block;
if (HAVE_BADBLOCK(dev))
uffs_BadBlockProcess(dev, node);
else
uffs_TreeInsertToErasedListTail(dev, node);
uffs_BlockInfoPut(dev, bc_alt); //put back bc_alt before we return.
return U_SUCC;
}
else {
//the node is older than node_alt, so keep node, and erase node_alt
//we use node as erased node to insert to erased list
block_save = _GetBlockFromNode(type, node_alt);
uffs_FlashEraseBlock(dev, block_save);
node->u.list.block = block_save;
if (HAVE_BADBLOCK(dev))
uffs_BadBlockProcess(dev, node);
else
uffs_TreeInsertToErasedListTail(dev, node);
//put back bc_alt because we don't need it anymore.
uffs_BlockInfoPut(dev, bc_alt);
//use node_alt to store new informations in following
node = node_alt;
needToInsertToTree = U_FALSE;
}
}
else {
needToInsertToTree = U_TRUE;
}
if (type == UFFS_TYPE_DIR || type == UFFS_TYPE_FILE) {
buf = uffs_BufClone(dev, NULL);
if (buf == NULL)
return U_FAIL;
uffs_BlockInfoLoad(dev, bc, UFFS_ALL_PAGES);
page = uffs_FindPageInBlockWithPageId(dev, bc, 0);
if (page == UFFS_INVALID_PAGE) {
uffs_BufFreeClone(dev, buf);
uffs_Perror(UFFS_MSG_SERIOUS,
"Can't find any valid page for page_id=0 ? invalid block !"
"this might be caused by the tag layout change.\n");
goto process_invalid_block;
}
page = uffs_FindBestPageInBlock(dev, bc, page);
uffs_FlashReadPage(dev, block, page, buf, U_FALSE);
info = (uffs_FileInfo *) (buf->data);
data_sum = uffs_MakeSum16(info->name, info->name_len);
uffs_BufFreeClone(dev, buf);
}
switch (type) {
case UFFS_TYPE_DIR:
node->u.dir.block = bc->block;
node->u.dir.checksum = data_sum;
node->u.dir.parent = TAG_PARENT(tag);
node->u.dir.serial = TAG_SERIAL(tag);
st->dir++;
break;
case UFFS_TYPE_FILE:
node->u.file.block = bc->block;
node->u.file.checksum = data_sum;
node->u.file.parent = TAG_PARENT(tag);
node->u.file.serial = TAG_SERIAL(tag);
node->u.file.len = uffs_GetBlockFileDataLength(dev, bc, UFFS_TYPE_FILE);
st->file++;
break;
case UFFS_TYPE_DATA:
node->u.data.block = bc->block;
node->u.data.parent = TAG_PARENT(tag);
node->u.data.serial = TAG_SERIAL(tag);
node->u.data.len = uffs_GetBlockFileDataLength(dev, bc, UFFS_TYPE_DATA);
st->data++;
break;
}
if (needToInsertToTree == U_TRUE) {
uffs_InsertNodeToTree(dev, type, node);
}
return U_SUCC;
process_invalid_block:
/* erase the invalid block */
uffs_FlashEraseBlock(dev, bc->block);
node->u.list.block = bc->block;
if (HAVE_BADBLOCK(dev))
uffs_BadBlockProcess(dev, node);
else
uffs_TreeInsertToErasedListTail(dev, node);
return U_SUCC;
}
/* usage: t_pgrw
*
* This test case test page read/write
*/
static BOOL cmdTestPageReadWrite(const char *tail)
{
TreeNode *node;
uffs_Device *dev;
uffs_Tags local_tag;
uffs_Tags *tag = &local_tag;
int ret;
u16 block;
u16 page;
uffs_Buf *buf;
u32 i;
dev = uffs_GetDeviceFromMountPoint("/");
if (!dev)
goto ext;
buf = uffs_BufClone(dev, NULL);
if (!buf)
goto ext;
node = uffs_TreeGetErasedNode(dev);
if (!node) {
MSGLN("no free block ?");
goto ext;
}
for (i = 0; i < dev->com.pg_data_size; i++) {
buf->data[i] = i & 0xFF;
}
block = node->u.list.block;
page = 1;
TAG_DATA_LEN(tag) = dev->com.pg_data_size;
TAG_TYPE(tag) = UFFS_TYPE_DATA;
TAG_PAGE_ID(tag) = 3;
TAG_PARENT(tag) = 100;
TAG_SERIAL(tag) = 10;
TAG_BLOCK_TS(tag) = 1;
ret = uffs_FlashWritePageCombine(dev, block, page, buf, tag);
if (UFFS_FLASH_HAVE_ERR(ret)) {
MSGLN("Write page error: %d", ret);
goto ext;
}
ret = uffs_FlashReadPage(dev, block, page, buf);
if (UFFS_FLASH_HAVE_ERR(ret)) {
MSGLN("Read page error: %d", ret);
goto ext;
}
for (i = 0; i < dev->com.pg_data_size; i++) {
if (buf->data[i] != (i & 0xFF)) {
MSGLN("Data verify fail at: %d", i);
goto ext;
}
}
ret = uffs_FlashReadPageTag(dev, block, page, tag);
if (UFFS_FLASH_HAVE_ERR(ret)) {
MSGLN("Read tag (page spare) error: %d", ret);
goto ext;
}
// verify tag:
if (!TAG_IS_DIRTY(tag)) {
MSGLN("not dirty ? Tag verify fail!");
goto ext;
}
if (!TAG_IS_VALID(tag)) {
MSGLN("not valid ? Tag verify fail!");
goto ext;
}
if (TAG_DATA_LEN(tag) != dev->com.pg_data_size ||
TAG_TYPE(tag) != UFFS_TYPE_DATA ||
TAG_PAGE_ID(tag) != 3 ||
TAG_PARENT(tag) != 100 ||
TAG_SERIAL(tag) != 10 ||
TAG_BLOCK_TS(tag) != 1) {
MSGLN("Tag verify fail!");
goto ext;
}
MSGLN("Page read/write test succ.");
ext:
if (node) {
uffs_FlashEraseBlock(dev, node->u.list.block);
if (HAVE_BADBLOCK(dev))
uffs_BadBlockProcess(dev, node);
else
uffs_InsertToErasedListHead(dev, node);
}
if (dev)
uffs_PutDevice(dev);
if (buf)
uffs_BufFreeClone(dev, buf);
return TRUE;
}
/**
* write the whole page, include data and tag
*
* \param[in] dev uffs device
* \param[in] block
* \param[in] page
* \param[in] buf contains data to be wrote
* \param[in] tag tag to be wrote
*
* \return #UFFS_FLASH_NO_ERR: success.
* #UFFS_FLASH_IO_ERR: I/O error, expect retry ?
* #UFFS_FLASH_BAD_BLK: a new bad block detected.
*/
int uffs_FlashWritePageCombine(uffs_Device *dev,
int block, int page,
uffs_Buf *buf, uffs_Tags *tag)
{
uffs_FlashOps *ops = dev->ops;
int size = dev->com.pg_size;
u8 ecc_buf[UFFS_MAX_ECC_SIZE];
u8 *ecc = NULL;
u8 *spare;
struct uffs_MiniHeaderSt *header;
int ret = UFFS_FLASH_UNKNOWN_ERR;
UBOOL is_bad = U_FALSE;
uffs_Buf *verify_buf;
#ifdef CONFIG_PAGE_WRITE_VERIFY
uffs_Tags chk_tag;
#endif
spare = (u8 *) uffs_PoolGet(SPOOL(dev));
if (spare == NULL)
goto ext;
// setup header
header = HEADER(buf);
memset(header, 0xFF, sizeof(struct uffs_MiniHeaderSt));
header->status = 0;
#ifdef CONFIG_ENABLE_PAGE_DATA_CRC
header->crc = uffs_crc16sum(buf->data, size - sizeof(struct uffs_MiniHeaderSt));
#endif
// setup tag
TAG_DIRTY_BIT(tag) = TAG_DIRTY; //!< set dirty bit
TAG_VALID_BIT(tag) = TAG_VALID; //!< set valid bit
SEAL_TAG(tag); //!< seal tag (the real seal byte will be set in uffs_FlashMakeSpare())
if (dev->attr->ecc_opt != UFFS_ECC_NONE)
TagMakeEcc(&tag->s);
else
tag->s.tag_ecc = TAG_ECC_DEFAULT;
if (dev->attr->ecc_opt == UFFS_ECC_SOFT) {
uffs_EccMake(buf->header, size, ecc_buf);
ecc = ecc_buf;
}
else if (dev->attr->ecc_opt == UFFS_ECC_HW) {
ecc = ecc_buf;
}
if (ops->WritePageWithLayout) {
ret = ops->WritePageWithLayout(dev, block, page,
buf->header, size, ecc, &tag->s);
}
else {
if (!uffs_Assert(!(dev->attr->layout_opt == UFFS_LAYOUT_FLASH ||
dev->attr->ecc_opt == UFFS_ECC_HW ||
dev->attr->ecc_opt == UFFS_ECC_HW_AUTO), "WritePageWithLayout() not implemented ?")) {
ret = UFFS_FLASH_IO_ERR;
goto ext;
}
uffs_FlashMakeSpare(dev, &tag->s, ecc, spare);
ret = ops->WritePage(dev, block, page, buf->header, size, spare, dev->mem.spare_data_size);
}
if (UFFS_FLASH_IS_BAD_BLOCK(ret))
is_bad = U_TRUE;
if (UFFS_FLASH_HAVE_ERR(ret))
goto ext;
#ifdef CONFIG_PAGE_WRITE_VERIFY
verify_buf = uffs_BufClone(dev, NULL);
if (verify_buf) {
ret = uffs_FlashReadPage(dev, block, page, verify_buf, U_FALSE);
if (!UFFS_FLASH_HAVE_ERR(ret)) {
if (memcmp(buf->header, verify_buf->header, size) != 0) {
uffs_Perror(UFFS_MSG_NORMAL,
"Page write verify failed (block %d page %d)",
block, page);
ret = UFFS_FLASH_BAD_BLK;
}
}
uffs_BufFreeClone(dev, verify_buf);
}
else {
uffs_Perror(UFFS_MSG_SERIOUS, "Insufficient buf, clone buf failed.");
}
ret = uffs_FlashReadPageTag(dev, block, page, &chk_tag);
if (UFFS_FLASH_HAVE_ERR(ret))
goto ext;
if (memcmp(&tag->s, &chk_tag.s, sizeof(uffs_TagStore)) != 0) {
uffs_Perror(UFFS_MSG_NORMAL, "Page tag write verify failed (block %d page %d)",
block, page);
ret = UFFS_FLASH_BAD_BLK;
}
if (UFFS_FLASH_IS_BAD_BLOCK(ret))
is_bad = U_TRUE;
#endif
ext:
if (is_bad)
uffs_BadBlockAdd(dev, block);
if (spare)
uffs_PoolPut(SPOOL(dev), spare);
return ret;
}
