WebSVN – HelenOS – Path Comparison – / – /trunk/ Rev 1907 and /trunk/ Rev 1908

Ignore whitespace Rev 1907 → Rev 1908

/trunk/kernel/genarch/include/ofw/ofw_tree.h
133,6 → 133,7
extern ofw_tree_node_t ofw_tree_find_child(ofw_tree_node_t node, const char *name);
extern ofw_tree_node_t ofw_tree_find_child_by_device_type(ofw_tree_node_t node, const char *device_type);
extern ofw_tree_node_t ofw_tree_find_peer_by_device_type(ofw_tree_node_t node, const char *device_type);
extern ofw_tree_node_t ofw_tree_find_node_by_handle(ofw_tree_node_t root, uint32_t handle);

extern bool ofw_fhc_apply_ranges(ofw_tree_node_t node, ofw_fhc_reg_t reg, uintptr_t *pa);
extern bool ofw_central_apply_ranges(ofw_tree_node_t node, ofw_central_reg_t reg, uintptr_t *pa);

 /trunk/kernel/genarch/src/ofw/ofw_tree.c
 ,6 → 147,35
     return NULL;
 }
+/** Lookup node with matching node_handle.
+ *
+ * @param root Root of the searched subtree.
+ * @param handle OpenFirmware handle.
+ *
+ * @return NULL if there is no such node or pointer to the matching node.
+ */
+ofw_tree_node_t *ofw_tree_find_node_by_handle(ofw_tree_node_t *root, uint32_t handle)
+{
+    ofw_tree_node_t *node;
+    if (root->node_handle == handle)
+        return root;
+    if (root->peer) {
+        node = ofw_tree_find_node_by_handle(root->peer, handle);
+        if (node)
+            return node;
+    }
+    if (root->child) {
+        node = ofw_tree_find_node_by_handle(root->child, handle);
+        if (node)
+            return node;
+    }
+    return NULL;
+}
 /** Lookup first peer of given device type.
  *
  * @param node Node whose peer is being looked up.