dev_info_t *
i_ddi_create_branch(dev_info_t *pdip, int nid)
{
char *buf;
dev_info_t *dip = NULL;
if (pdip == NULL || nid == OBP_NONODE || nid == OBP_BADNODE)
return (NULL);
buf = kmem_alloc(OBP_MAXPROPNAME, KM_SLEEP);
if (getlongprop_buf(nid, OBP_NAME, buf, OBP_MAXPROPNAME) > 0) {
if (check_status(nid, buf, pdip) == DDI_SUCCESS)
dip = ddi_add_child(pdip, buf, nid, -1);
}
kmem_free(buf, OBP_MAXPROPNAME);
if (dip == NULL)
return (NULL);
/*
* Don't create any siblings of the branch root, just
* children.
*/
(void) get_neighbors(dip, DDI_WALK_PRUNESIB);
di_dfs(ddi_get_child(dip), get_neighbors, 0);
return (dip);
}
/*ARGSUSED*/
int
check_status(int id, char *buf, dev_info_t *parent)
{
char status_buf[64];
char devtype_buf[OBP_MAXPROPNAME];
char board_buf[32];
char path[OBP_MAXPATHLEN];
int boardnum;
int retval = DDI_FAILURE;
extern int status_okay(int, char *, int);
/*
* is the status okay?
*/
if (status_okay(id, status_buf, sizeof (status_buf)))
return (DDI_SUCCESS);
/*
* a status property indicating bad memory will be associated
* with a node which has a "device_type" property with a value of
* "memory-controller". in this situation, return DDI_SUCCESS
*/
if (getlongprop_buf(id, OBP_DEVICETYPE, devtype_buf,
sizeof (devtype_buf)) > 0) {
if (strcmp(devtype_buf, "memory-controller") == 0)
retval = DDI_SUCCESS;
}
/*
* get the full OBP pathname of this node
*/
if (prom_phandle_to_path((phandle_t)id, path, sizeof (path)) < 0)
cmn_err(CE_WARN, "prom_phandle_to_path(%d) failed", id);
/*
* get the board number, if one exists
*/
if ((boardnum = get_boardnum(id, parent)) >= 0)
(void) sprintf(board_buf, " on board %d", boardnum);
else
board_buf[0] = '\0';
/*
* print the status property information
*/
cmn_err(CE_WARN, "status '%s' for '%s'%s",
status_buf, path, board_buf);
return (retval);
}
/*ARGSUSED1*/
static int
get_neighbors(dev_info_t *di, int flag)
{
register int nid, snid, cnid;
dev_info_t *parent;
char buf[OBP_MAXPROPNAME];
if (di == NULL)
return (DDI_WALK_CONTINUE);
nid = ddi_get_nodeid(di);
snid = cnid = 0;
switch (flag) {
case DDI_WALK_PRUNESIB:
cnid = (int)prom_childnode((pnode_t)nid);
break;
case DDI_WALK_PRUNECHILD:
snid = (int)prom_nextnode((pnode_t)nid);
break;
case 0:
snid = (int)prom_nextnode((pnode_t)nid);
cnid = (int)prom_childnode((pnode_t)nid);
break;
default:
return (DDI_WALK_TERMINATE);
}
if (snid && (snid != -1) && ((parent = ddi_get_parent(di)) != NULL)) {
/*
* add the first sibling that passes check_status()
*/
for (; snid && (snid != -1);
snid = (int)prom_nextnode((pnode_t)snid)) {
if (getlongprop_buf(snid, OBP_NAME, buf,
sizeof (buf)) > 0) {
if (check_status(snid, buf, parent) ==
DDI_SUCCESS) {
(void) ddi_add_child(parent, buf,
snid, -1);
break;
}
}
}
}
if (cnid && (cnid != -1)) {
/*
* add the first child that passes check_status()
*/
if (getlongprop_buf(cnid, OBP_NAME, buf, sizeof (buf)) > 0) {
if (check_status(cnid, buf, di) == DDI_SUCCESS) {
(void) ddi_add_child(di, buf, cnid, -1);
} else {
for (cnid = (int)prom_nextnode((pnode_t)cnid);
cnid && (cnid != -1);
cnid = (int)prom_nextnode((pnode_t)cnid)) {
if (getlongprop_buf(cnid, OBP_NAME,
buf, sizeof (buf)) > 0) {
if (check_status(cnid, buf, di)
== DDI_SUCCESS) {
(void) ddi_add_child(
di, buf, cnid, -1);
break;
}
}
}
}
}
}
return (DDI_WALK_CONTINUE);
}
