/**
* acquire_phb
*
*/
static int acquire_phb(char *drc_name, struct dr_node **phb)
{
struct dr_connector drc;
struct of_node *of_nodes;
char path[DR_PATH_MAX];
int rc;
rc = get_drc_by_name(drc_name, &drc, path, OFDT_BASE);
if (rc) {
say(ERROR, "Could not find drc index for %s, unable to add the"
"PHB.\n", drc_name);
return rc;
}
rc = acquire_drc(drc.index);
if (rc)
return rc;
of_nodes = configure_connector(drc.index);
if (of_nodes == NULL) {
release_drc(drc.index, PHB_DEV);
return -1;
}
rc = add_device_tree_nodes(path, of_nodes);
free_of_node(of_nodes);
if (rc) {
say(ERROR, "add_device_tree_nodes failed at %s\n", path);
release_drc(drc.index, PHB_DEV);
return -1;
}
/* Now that the node has been added to the device-tree, retrieve it.
* This also acts as a sanity check that everything up to this
* point has succeeded.
*/
*phb = get_node_by_name(drc_name, PHB_NODES);
if (*phb == NULL) {
say(ERROR, "Could not get find \"%s\"\n", drc_name);
/* or should we call release_drc? but need device type */
release_drc(drc.index, PHB_DEV);
return -1;
}
return 0;
}
/**
* get_drc_by_name
* @brief Retrieve a dr_connector with the specified drc_name
*
* This routine searches the drc lists for a dr_connector with the
* specified name starting at the specified directory. If a dr_connector
* is found the root_dir that the dr_connector was found in is also
* filled out.
*
* @param drc_name name of the dr_connector to search for
* @param drc pointer to a drc to point to the found dr_connector
* @param root_dir pointer to buf to fill in with root directory
* @param start_dir, directory to start searching
* @returns 0 on success (drc and root_dir filled in), !0 on failure
*/
int
get_drc_by_name(char *drc_name, struct dr_connector *drc, char *root_dir,
char *start_dir)
{
struct dr_connector *drc_list = NULL;
struct dr_connector *drc_entry;
struct dirent *de;
DIR *d;
int rc = -1;
memset(drc, 0, sizeof(*drc));
/* Try to get the drc in this directory */
drc_list = get_drc_info(start_dir);
if (drc_list == NULL)
return -1;
drc_entry = search_drc_list(drc_list, NULL, DRC_NAME, drc_name);
if (drc_entry != NULL) {
memcpy(drc, drc_entry, sizeof(*drc));
sprintf(root_dir, "%s", start_dir);
return 0;
}
/* If we didn't find it here, check the subdirs */
d = opendir(start_dir);
if (d == NULL)
return -1;
while ((de = readdir(d)) != NULL) {
char dir_path[DR_PATH_MAX];
if ((de->d_type != DT_DIR) || is_dot_dir(de->d_name))
continue;
sprintf(dir_path, "%s/%s", start_dir, de->d_name);
rc = get_drc_by_name(drc_name, drc, root_dir, dir_path);
if (rc == 0)
break;
}
closedir(d);
return rc;
}
