Changeset 45b26dad in mainline for kernel/genarch/src/ofw/ofw_tree.c

Timestamp:

2006-09-26T12:59:28Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

b44939b

Parents:

6ff1f1e

Message:

sparc64 work:

• Loader now starts all processors.
• Kernel halts all but the bootstrup processor for now.
• Read clock-frequency from the respective processor node in the device tree

File:

• kernel/genarch/src/ofw/ofw_tree.c (modified) (2 diffs)

kernel/genarch/src/ofw/ofw_tree.c

@@ -98 +98 @@
  * @return NULL if there is no such child or pointer to the matching child node.
  */
-static ofw_tree_node_t *ofw_tree_find_child(ofw_tree_node_t *node, const char *name)
+ofw_tree_node_t *ofw_tree_find_child(ofw_tree_node_t *node, const char *name)
 {
         ofw_tree_node_t *cur;
@@ -125 +125 @@
 }
 
+/** Lookup first child of given device type.
+ *
+ * @param node Node whose child is being looked up.
+ * @param name Device type of the child being looked up.
+ *
+ * @return NULL if there is no such child or pointer to the matching child node.
+ */
+ofw_tree_node_t *ofw_tree_find_child_by_device_type(ofw_tree_node_t *node, const char *name)
+{
+        ofw_tree_node_t *cur;
+        ofw_tree_property_t *prop;
+        
+        for (cur = node->child; cur; cur = cur->peer) {
+                prop = ofw_tree_getprop(cur, "device_type");
+                if (!prop || !prop->value)
+                        continue;
+                if (strcmp(prop->value, name) == 0)
+                        return cur;
+        }
+                        
+        return NULL;
+}
+
+/** Lookup first peer of given device type.
+ *
+ * @param node Node whose peer is being looked up.
+ * @param name Device type of the child being looked up.
+ *
+ * @return NULL if there is no such child or pointer to the matching child node.
+ */
+ofw_tree_node_t *ofw_tree_find_peer_by_device_type(ofw_tree_node_t *node, const char *name)
+{
+        ofw_tree_node_t *cur;
+        ofw_tree_property_t *prop;
+        
+        for (cur = node->peer; cur; cur = cur->peer) {
+                prop = ofw_tree_getprop(cur, "device_type");
+                if (!prop || !prop->value)
+                        continue;
+                if (strcmp(prop->value, name) == 0)
+                        return cur;
+        }
+                        
+        return NULL;
+}
+
+
 /** Lookup OpenFirmware node by its path.
  *