projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| c781c06d | 1 | /* |
| 3038e353 KH |
2 | * Copyright (C) 2003-2006 Kristian Hoegsberg <krh@bitplanet.net> |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or modify | |
| 5 | * it under the terms of the GNU General Public License as published by | |
| 6 | * the Free Software Foundation; either version 2 of the License, or | |
| 7 | * (at your option) any later version. | |
| 8 | * | |
| 9 | * This program is distributed in the hope that it will be useful, | |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 | * GNU General Public License for more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU General Public License | |
| 15 | * along with this program; if not, write to the Free Software Foundation, | |
| 16 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 17 | */ | |
| 18 | ||
| 19 | #ifndef __fw_topology_h | |
| 20 | #define __fw_topology_h | |
| 21 | ||
| b769bd17 SR |
22 | #include <linux/list.h> |
| 23 | #include <linux/slab.h> | |
| 24 | ||
| 25 | #include <asm/atomic.h> | |
| 26 | ||
| 3038e353 | 27 | enum { |
| c9755e14 SR |
28 | FW_NODE_CREATED, |
| 29 | FW_NODE_UPDATED, | |
| 30 | FW_NODE_DESTROYED, | |
| 31 | FW_NODE_LINK_ON, | |
| 32 | FW_NODE_LINK_OFF, | |
| 33 | FW_NODE_INITIATED_RESET, | |
| 3038e353 KH |
34 | }; |
| 35 | ||
| 3038e353 KH |
36 | struct fw_node { |
| 37 | u16 node_id; | |
| 5e20c282 | 38 | u8 color; |
| 3038e353 | 39 | u8 port_count; |
| f1397490 SR |
40 | u8 link_on : 1; |
| 41 | u8 initiated_reset : 1; | |
| 42 | u8 b_path : 1; | |
| 43 | u8 phy_speed : 2; /* As in the self ID packet. */ | |
| 44 | u8 max_speed : 2; /* Minimum of all phy-speeds on the path from the | |
| 45 | * local node to this node. */ | |
| 83db801c KH |
46 | u8 max_depth : 4; /* Maximum depth to any leaf node */ |
| 47 | u8 max_hops : 4; /* Max hops in this sub tree */ | |
| 3038e353 KH |
48 | atomic_t ref_count; |
| 49 | ||
| 5e20c282 | 50 | /* For serializing node topology into a list. */ |
| 3038e353 KH |
51 | struct list_head link; |
| 52 | ||
| 53 | /* Upper layer specific data. */ | |
| 54 | void *data; | |
| 55 | ||
| dae1a3aa | 56 | struct fw_node *ports[0]; |
| 3038e353 KH |
57 | }; |
| 58 | ||
| 53dca511 | 59 | static inline struct fw_node *fw_node_get(struct fw_node *node) |
| 3038e353 KH |
60 | { |
| 61 | atomic_inc(&node->ref_count); | |
| 62 | ||
| 63 | return node; | |
| 64 | } | |
| 65 | ||
| 53dca511 | 66 | static inline void fw_node_put(struct fw_node *node) |
| 3038e353 KH |
67 | { |
| 68 | if (atomic_dec_and_test(&node->ref_count)) | |
| 69 | kfree(node); | |
| 70 | } | |
| 71 | ||
| b769bd17 | 72 | struct fw_card; |
| 53dca511 | 73 | void fw_destroy_nodes(struct fw_card *card); |
| e175569c | 74 | |
| 53dca511 | 75 | int fw_compute_block_crc(u32 *block); |
| 473d28c7 | 76 | |
| 687198bb | 77 | #endif /* __fw_topology_h */ |