1 files changed, 92 insertions, 0 deletions

diff --git a/drivers/firewire/fw-topology.h b/drivers/firewire/fw-topology.h
new file mode 100644
index 000000000000..363b6cbcd0b3
--- /dev/null
+++ b/drivers/firewire/fw-topology.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2003-2006 Kristian Hoegsberg <krh@bitplanet.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __fw_topology_h
+#define __fw_topology_h
+
+enum {
+        FW_TOPOLOGY_A =         0x01,
+        FW_TOPOLOGY_B =         0x02,
+        FW_TOPOLOGY_MIXED =     0x03,
+};
+
+enum {
+        FW_NODE_CREATED =   0x00,
+        FW_NODE_UPDATED =   0x01,
+        FW_NODE_DESTROYED = 0x02,
+        FW_NODE_LINK_ON =   0x03,
+        FW_NODE_LINK_OFF =  0x04,
+};
+
+struct fw_port {
+        struct fw_node *node;
+        unsigned speed : 3; /* S100, S200, ... S3200 */
+};
+
+struct fw_node {
+        u16 node_id;
+        u8 color;
+        u8 port_count;
+        unsigned link_on : 1;
+        unsigned initiated_reset : 1;
+        unsigned b_path : 1;
+        u8 phy_speed : 3; /* As in the self ID packet. */
+        u8 max_speed : 5; /* Minimum of all phy-speeds and port speeds on
+                           * the path from the local node to this node. */
+        u8 max_depth : 4; /* Maximum depth to any leaf node */
+        u8 max_hops : 4;  /* Max hops in this sub tree */
+        atomic_t ref_count;
+
+        /* For serializing node topology into a list. */
+        struct list_head link;
+
+        /* Upper layer specific data. */
+        void *data;
+
+        struct fw_port ports[0];
+};
+
+static inline struct fw_node *
+fw_node(struct list_head *l)
+{
+        return list_entry(l, struct fw_node, link);
+}
+
+static inline struct fw_node *
+fw_node_get(struct fw_node *node)
+{
+        atomic_inc(&node->ref_count);
+
+        return node;
+}
+
+static inline void
+fw_node_put(struct fw_node *node)
+{
+        if (atomic_dec_and_test(&node->ref_count))
+                kfree(node);
+}
+
+void
+fw_destroy_nodes(struct fw_card *card);
+
+int
+fw_compute_block_crc(u32 *block);
+
+
+#endif /* __fw_topology_h */