/** print block wear-leveling information
* wl [<mount>]
*/
static int cmd_wl(int argc, char *argv[])
{
const char *mount = "/";
uffs_Device *dev;
struct uffs_PartitionSt *par;
uffs_FileEmu *emu;
int i, max;
u32 n;
#define NUM_PER_LINE 10
CHK_ARGC(1, 2);
if (argc > 1) {
mount = argv[1];
}
dev = uffs_GetDeviceFromMountPoint(mount);
if (dev == NULL) {
MSGLN("Can't get device from mount point %s", mount);
return -1;
}
par = &dev->par;
emu = (uffs_FileEmu *)(dev->attr->_private);
max = -1;
for (i = 0; i < par->end - par->start; i++) {
if ((i % NUM_PER_LINE) == 0) {
MSG("%04d:", i + par->start);
}
n = i + par->start;
max = (max == -1 ? n :
(emu->em_monitor_block[n] > emu->em_monitor_block[max] ? n : max)
);
MSG(" %4d", emu->em_monitor_block[n]);
if (uffs_TreeFindBadNodeByBlock(dev, n))
MSG("%c", 'x');
else if (uffs_TreeFindErasedNodeByBlock(dev, n))
MSG("%c", ' ');
else
MSG("%c", '.');
if (((i + 1) % NUM_PER_LINE) == 0)
MSG("\n");
}
MSG("\n");
MSG("Total blocks %d, peak erase count %d at block %d\n",
par->end - par->start, max == -1 ? 0 : emu->em_monitor_block[max], max);
uffs_PutDevice(dev);
return 0;
}
TreeNode * uffs_TreeFindNodeByBlock(uffs_Device *dev, u16 block, int *region)
{
TreeNode *node = NULL;
if (*region & SEARCH_REGION_DATA) {
node = uffs_TreeFindDataNodeByBlock(dev, block);
if (node) {
*region &= SEARCH_REGION_DATA;
return node;
}
}
if (*region & SEARCH_REGION_FILE) {
node = uffs_TreeFindFileNodeByBlock(dev, block);
if (node) {
*region &= SEARCH_REGION_FILE;
return node;
}
}
if (*region & SEARCH_REGION_DIR) {
node = uffs_TreeFindDirNodeByBlock(dev, block);
if (node) {
*region &= SEARCH_REGION_DIR;
return node;
}
}
if (*region & SEARCH_REGION_ERASED) {
node = uffs_TreeFindErasedNodeByBlock(dev, block);
if (node) {
*region &= SEARCH_REGION_ERASED;
return node;
}
}
if (*region & SEARCH_REGION_BAD) {
node = uffs_TreeFindBadNodeByBlock(dev, block);
if (node) {
*region &= SEARCH_REGION_BAD;
return node;
}
}
return node;
}
