URET uffs_ReleaseDevice(uffs_Device *dev)
{
URET ret;
ret = uffs_BlockInfoReleaseCache(dev);
if (ret != U_SUCC) {
uffs_Perror(UFFS_MSG_SERIOUS, "fail to release block info.");
goto ext;
}
ret = uffs_BufReleaseAll(dev);
if (ret != U_SUCC) {
uffs_Perror(UFFS_MSG_SERIOUS, "fail to release page buffers");
goto ext;
}
ret = uffs_TreeRelease(dev);
if (ret != U_SUCC) {
uffs_Perror(UFFS_MSG_SERIOUS, "fail to release tree buffers!");
goto ext;
}
ret = uffs_FlashInterfaceRelease(dev);
if (ret != U_SUCC) {
uffs_Perror(UFFS_MSG_SERIOUS, "fail to release tree buffers!");
goto ext;
}
if (dev->mem.release)
ret = dev->mem.release(dev);
if (ret != U_SUCC) {
uffs_Perror(UFFS_MSG_SERIOUS, "fail to release memory allocator!");
}
uffs_DeviceReleaseLock(dev);
ext:
return ret;
}
URET uffs_FormatDevice(uffs_Device *dev, UBOOL force)
{
u16 i, slot;
URET ret = U_SUCC;
if (dev == NULL)
return U_FAIL;
if (dev->ops == NULL)
return U_FAIL;
uffs_GlobalFsLockLock();
ret = uffs_BufFlushAll(dev);
if (dev->ref_count > 1 && !force) {
uffs_Perror(UFFS_MSG_NORMAL,
"can't format when dev->ref_count = %d",
dev->ref_count);
ret = U_FAIL;
}
if (ret == U_SUCC && force) {
uffs_DirEntryBufPutAll(dev);
uffs_PutAllObjectBuf(dev);
uffs_FdSignatureIncrease();
}
if (ret == U_SUCC &&
uffs_BufIsAllFree(dev) == U_FALSE &&
!force)
{
uffs_Perror(UFFS_MSG_NORMAL, "some page still in used!");
ret = U_FAIL;
}
if (!force) {
for (slot = 0; ret == U_SUCC && slot < dev->cfg.dirty_groups; slot++) {
if (dev->buf.dirtyGroup[slot].count > 0) {
uffs_Perror(UFFS_MSG_SERIOUS, "there still have dirty pages!");
ret = U_FAIL;
}
}
}
if (ret == U_SUCC)
uffs_BufSetAllEmpty(dev);
if (ret == U_SUCC && uffs_BlockInfoIsAllFree(dev) == U_FALSE && !force) {
uffs_Perror(UFFS_MSG_NORMAL,
"there still have block info cache ? fail to format");
ret = U_FAIL;
}
if (ret == U_SUCC)
uffs_BlockInfoExpireAll(dev);
for (i = dev->par.start; ret == U_SUCC && i <= dev->par.end; i++) {
if (uffs_FlashIsBadBlock(dev, i) == U_FALSE) {
uffs_FlashEraseBlock(dev, i);
if (HAVE_BADBLOCK(dev))
uffs_BadBlockProcess(dev, NULL);
}
else {
#ifdef CONFIG_ENABLE_BAD_BLOCK_VERIFY
_ForceFormatAndCheckBlock(dev, i);
#endif
}
}
if (ret == U_SUCC && uffs_TreeRelease(dev) == U_FAIL) {
ret = U_FAIL;
}
if (ret == U_SUCC && uffs_TreeInit(dev) == U_FAIL) {
ret = U_FAIL;
}
if (ret == U_SUCC && uffs_BuildTree(dev) == U_FAIL) {
ret = U_FAIL;
}
uffs_GlobalFsLockUnlock();
return ret;
}
