1 /* -*- c-basic-offset: 8 -*-
3 * fw-topology.h -- Incremental bus scan, based on bus topology
5 * Copyright (C) 2003-2006 Kristian Hoegsberg <krh@bitplanet.net>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software Foundation,
19 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 #ifndef __fw_topology_h
23 #define __fw_topology_h
26 FW_NODE_CREATED = 0x00,
27 FW_NODE_UPDATED = 0x01,
28 FW_NODE_DESTROYED = 0x02,
29 FW_NODE_LINK_ON = 0x03,
30 FW_NODE_LINK_OFF = 0x04
35 unsigned speed : 3; /* S100, S200, ... S3200 */
43 unsigned initiated_reset : 1;
45 u8 phy_speed; /* As in the self ID packet. */
46 u8 max_speed; /* Minimum of all phy-speeds and port speeds on
47 * the path from the local node to this node. */
51 /* For serializing node topology into a list. */
52 struct list_head link;
54 /* Upper layer specific data. */
57 struct fw_port ports[0];
60 extern inline struct fw_node *
61 fw_node(struct list_head *l)
63 return list_entry (l, struct fw_node, link);
66 extern inline struct fw_node *
67 fw_node_get(struct fw_node *node)
69 atomic_inc(&node->ref_count);
75 fw_node_put(struct fw_node *node)
77 if (atomic_dec_and_test(&node->ref_count))
82 fw_destroy_nodes(struct fw_card *card);