/* 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;
}
/* 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;
}
/**
* \brief recover bad block
* \param[in] dev uffs device
*/
void uffs_BadBlockRecover(uffs_Device *dev)
{
TreeNode *good, *bad;
uffs_Buf *buf;
u16 i;
u16 page;
uffs_BlockInfo *bc = NULL;
uffs_Tags *tag;
uffs_Tags newTag;
UBOOL succRecov;
UBOOL goodBlockIsDirty = U_FALSE;
int ret;
int region;
u8 type;
if (dev->bad.block == UFFS_INVALID_BLOCK)
return;
// pick up an erased good block
good = uffs_TreeGetErasedNode(dev);
if (good == NULL) {
uffs_Perror(UFFS_ERR_SERIOUS, "no free block to replace bad block!");
return;
}
//recover block
bc = uffs_BlockInfoGet(dev, dev->bad.block);
if (bc == NULL) {
uffs_Perror(UFFS_ERR_SERIOUS, "can't get bad block info");
return;
}
succRecov = U_TRUE;
for (i = 0; i < dev->attr->pages_per_block; i++) {
page = uffs_FindPageInBlockWithPageId(dev, bc, i);
if(page == UFFS_INVALID_PAGE) {
break; //end of last valid page, normal break
}
page = uffs_FindBestPageInBlock(dev, bc, page);
tag = GET_TAG(bc, page);
buf = uffs_BufClone(dev, NULL);
if (buf == NULL) {
uffs_Perror(UFFS_ERR_SERIOUS, "Can't clone a new buf!");
succRecov = U_FALSE;
break;
}
//NOTE: since this is a bad block, we can't guarantee the data is ECC ok, so just load data even ECC is not OK.
ret = uffs_LoadPhyDataToBufEccUnCare(dev, buf, bc->block, page);
if (ret == U_FAIL) {
uffs_Perror(UFFS_ERR_SERIOUS, "I/O error ?");
uffs_BufFreeClone(dev, buf);
succRecov = U_FALSE;
break;
}
buf->data_len = TAG_DATA_LEN(tag);
if (buf->data_len > dev->com.pg_data_size) {
uffs_Perror(UFFS_ERR_NOISY, "data length over flow!!!");
buf->data_len = dev->com.pg_data_size;
}
buf->parent = TAG_PARENT(tag);
buf->serial = TAG_SERIAL(tag);
buf->type = TAG_TYPE(tag);
buf->page_id = TAG_PAGE_ID(tag);
newTag = *tag;
TAG_BLOCK_TS(&newTag) = uffs_GetNextBlockTimeStamp(TAG_BLOCK_TS(tag));
ret = uffs_FlashWritePageCombine(dev, good->u.list.block, i, buf, &newTag);
goodBlockIsDirty = U_TRUE;
uffs_BufFreeClone(dev, buf);
if (ret == UFFS_FLASH_IO_ERR) {
uffs_Perror(UFFS_ERR_NORMAL, "I/O error ?");
succRecov = U_FALSE;
break;
}
}
if (succRecov == U_TRUE) {
//successful recover bad block, so need to mark bad block, and replace with good one
region = SEARCH_REGION_DIR|SEARCH_REGION_FILE|SEARCH_REGION_DATA;
bad = uffs_TreeFindNodeByBlock(dev, dev->bad.block, ®ion);
if (bad != NULL) {
switch (region) {
case SEARCH_REGION_DIR:
bad->u.dir.block = good->u.list.block;
type = UFFS_TYPE_DIR;
break;
case SEARCH_REGION_FILE:
bad->u.file.block = good->u.list.block;
type = UFFS_TYPE_FILE;
break;
case SEARCH_REGION_DATA:
bad->u.data.block = good->u.list.block;
type = UFFS_TYPE_DATA;
}
//from now, the 'bad' is actually good block :)))
uffs_Perror(UFFS_ERR_NOISY, "new bad block %d found, and replaced by %d!", dev->bad.block, good->u.list.block);
uffs_BlockInfoExpire(dev, bc, UFFS_ALL_PAGES);
//we reuse the 'good' node as bad block node, and process the bad block.
good->u.list.block = dev->bad.block;
uffs_BadBlockProcess(dev, good);
}
else {
uffs_Perror(UFFS_ERR_SERIOUS, "can't find the reported bad block(%d) in the tree???", dev->bad.block);
if (goodBlockIsDirty == U_TRUE)
dev->ops->EraseBlock(dev, good->u.list.block);
uffs_TreeInsertToErasedListTail(dev, good);
}
}
else {
if (goodBlockIsDirty == U_TRUE)
dev->ops->EraseBlock(dev, good->u.list.block);
uffs_TreeInsertToErasedListTail(dev, good); //put back to erased list
}
uffs_BlockInfoPut(dev, bc);
}