Changeset fc8c2b6 in mainline for uspace/srv/devman/devman.c

Timestamp:

2011-03-30T14:26:13Z (14 years ago)

Author:

Vojtech Horky <vojtechhorky@…>

Branches:

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

Children:

e72fb34

Parents:

3fddb55

Message:

devman can tell device handle by its class path

File:

• uspace/srv/devman/devman.c (modified) (2 diffs)

uspace/srv/devman/devman.c

@@ -1194 +1194 @@
 }
 
+/** Find function node by its class name and index. */
+fun_node_t *find_fun_node_by_class(class_list_t *class_list,
+    const char *class_name, const char *dev_name)
+{
+        assert(class_list != NULL);
+        assert(class_name != NULL);
+        assert(dev_name != NULL);
+
+        fibril_rwlock_read_lock(&class_list->rwlock);
+
+        dev_class_t *cl = find_dev_class_no_lock(class_list, class_name);
+        if (cl == NULL) {
+                fibril_rwlock_read_unlock(&class_list->rwlock);
+                return NULL;
+        }
+
+        dev_class_info_t *dev = find_dev_in_class(cl, dev_name);
+        if (dev == NULL) {
+                fibril_rwlock_read_unlock(&class_list->rwlock);
+                return NULL;
+        }
+
+        fun_node_t *fun = dev->fun;
+
+        fibril_rwlock_read_unlock(&class_list->rwlock);
+
+        return fun;
+}
+
+
 /** Find child function node with a specified name.
  *
@@ -1366 +1396 @@
 }
 
+dev_class_info_t *find_dev_in_class(dev_class_t *dev_class, const char *dev_name)
+{
+        assert(dev_class != NULL);
+        assert(dev_name != NULL);
+
+        link_t *link;
+        for (link = dev_class->devices.next;
+            link != &dev_class->devices;
+            link = link->next) {
+                dev_class_info_t *dev = list_get_instance(link,
+                    dev_class_info_t, link);
+
+                if (str_cmp(dev->dev_name, dev_name) == 0) {
+                        return dev;
+                }
+        }
+
+        return NULL;
+}
+
 void init_class_list(class_list_t *class_list)
 {