projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 3038e353 KH |
1 | /* -*- c-basic-offset: 8 -*- |
| 2 | * | |
| 3 | * fw-topology.h -- Incremental bus scan, based on bus topology | |
| 4 | * | |
| 5 | * Copyright (C) 2003-2006 Kristian Hoegsberg <krh@bitplanet.net> | |
| 6 | * | |
| 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. | |
| 11 | * | |
| 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. | |
| 16 | * | |
| 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. | |
| 20 | */ | |
| 21 | ||
| 22 | #ifndef __fw_topology_h | |
| 23 | #define __fw_topology_h | |
| 24 | ||
| 83db801c KH |
25 | enum { |
| 26 | FW_TOPOLOGY_A = 0x01, | |
| 27 | FW_TOPOLOGY_B = 0x02, | |
| 28 | FW_TOPOLOGY_MIXED = 0x03, | |
| 29 | }; | |
| 30 | ||
| 3038e353 KH |
31 | enum { |
| 32 | FW_NODE_CREATED = 0x00, | |
| 33 | FW_NODE_UPDATED = 0x01, | |
| 34 | FW_NODE_DESTROYED = 0x02, | |
| 35 | FW_NODE_LINK_ON = 0x03, | |
| 5af4e5ea | 36 | FW_NODE_LINK_OFF = 0x04, |
| 3038e353 KH |
37 | }; |
| 38 | ||
| 39 | struct fw_port { | |
| 40 | struct fw_node *node; | |
| 41 | unsigned speed : 3; /* S100, S200, ... S3200 */ | |
| 42 | }; | |
| 43 | ||
| 44 | struct fw_node { | |
| 45 | u16 node_id; | |
| 5e20c282 | 46 | u8 color; |
| 3038e353 KH |
47 | u8 port_count; |
| 48 | unsigned link_on : 1; | |
| 49 | unsigned initiated_reset : 1; | |
| 50 | unsigned b_path : 1; | |
| 83db801c KH |
51 | u8 phy_speed : 3; /* As in the self ID packet. */ |
| 52 | u8 max_speed : 5; /* Minimum of all phy-speeds and port speeds on | |
| 53 | * the path from the local node to this node. */ | |
| 54 | u8 max_depth : 4; /* Maximum depth to any leaf node */ | |
| 55 | u8 max_hops : 4; /* Max hops in this sub tree */ | |
| 3038e353 KH |
56 | atomic_t ref_count; |
| 57 | ||
| 5e20c282 | 58 | /* For serializing node topology into a list. */ |
| 3038e353 KH |
59 | struct list_head link; |
| 60 | ||
| 61 | /* Upper layer specific data. */ | |
| 62 | void *data; | |
| 63 | ||
| 5e20c282 | 64 | struct fw_port ports[0]; |
| 3038e353 KH |
65 | }; |
| 66 | ||
| 95688e97 | 67 | static inline struct fw_node * |
| 3038e353 KH |
68 | fw_node(struct list_head *l) |
| 69 | { | |
| 5e20c282 | 70 | return list_entry (l, struct fw_node, link); |
| 3038e353 KH |
71 | } |
| 72 | ||
| 95688e97 | 73 | static inline struct fw_node * |
| 3038e353 KH |
74 | fw_node_get(struct fw_node *node) |
| 75 | { | |
| 76 | atomic_inc(&node->ref_count); | |
| 77 | ||
| 78 | return node; | |
| 79 | } | |
| 80 | ||
| 95688e97 | 81 | static inline void |
| 3038e353 KH |
82 | fw_node_put(struct fw_node *node) |
| 83 | { | |
| 84 | if (atomic_dec_and_test(&node->ref_count)) | |
| 85 | kfree(node); | |
| 86 | } | |
| 87 | ||
| 88 | void | |
| 89 | fw_destroy_nodes(struct fw_card *card); | |
| 90 | ||
| 473d28c7 KH |
91 | u16 |
| 92 | crc16_itu_t(const u32 *buffer, size_t length); | |
| 93 | ||
| 687198bb | 94 | #endif /* __fw_topology_h */ |