diff options
author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-10 16:29:36 -0400 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-10 16:30:08 -0400 |
commit | 9b6a51746ffe8d619f1097675d2dc5e303470024 (patch) | |
tree | 52668d7adc6f5c1d347d65072878cf1f82670364 /drivers/firewire/fw-topology.h | |
parent | fc0b60f1dc311a2f7443ce46305edd287b2d8947 (diff) | |
parent | d79406dd140a3e6eed6f26b17f0c6620fe30b50c (diff) |
Merge branch 'juju' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'juju' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: (138 commits)
firewire: Convert OHCI driver to use standard goto unwinding for error handling.
firewire: Always use parens with sizeof.
firewire: Drop single buffer request support.
firewire: Add a comment to describe why we split the sg list.
firewire: Return SCSI_MLQUEUE_HOST_BUSY for out of memory cases in queuecommand.
firewire: Handle the last few DMA mapping error cases.
firewire: Allocate scsi_host up front and allocate the sbp2_device as hostdata.
firewire: Provide module aliase for backwards compatibility.
firewire: Add to fw-core-y instead of assigning fw-core-objs in Makefile.
firewire: Break out shared IEEE1394 constant to separate header file.
firewire: Use linux/*.h instead of asm/*.h header files.
firewire: Uppercase most macro names.
firewire: Coding style cleanup: no spaces after function names.
firewire: Convert card_rwsem to a regular mutex.
firewire: Clean up comment style.
firewire: Use lib/ implementation of CRC ITU-T.
CRC ITU-T V.41
firewire: Rename fw-device-cdev.c to fw-cdev.c and move header to include/linux.
firewire: Future proof the iso ioctls by adding a handle for the iso context.
firewire: Add read/write and size annotations to IOC numbers.
...
Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/firewire/fw-topology.h')
-rw-r--r-- | drivers/firewire/fw-topology.h | 92 |
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 @@ | |||
1 | /* | ||
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 | |||
22 | enum { | ||
23 | FW_TOPOLOGY_A = 0x01, | ||
24 | FW_TOPOLOGY_B = 0x02, | ||
25 | FW_TOPOLOGY_MIXED = 0x03, | ||
26 | }; | ||
27 | |||
28 | enum { | ||
29 | FW_NODE_CREATED = 0x00, | ||
30 | FW_NODE_UPDATED = 0x01, | ||
31 | FW_NODE_DESTROYED = 0x02, | ||
32 | FW_NODE_LINK_ON = 0x03, | ||
33 | FW_NODE_LINK_OFF = 0x04, | ||
34 | }; | ||
35 | |||
36 | struct fw_port { | ||
37 | struct fw_node *node; | ||
38 | unsigned speed : 3; /* S100, S200, ... S3200 */ | ||
39 | }; | ||
40 | |||
41 | struct fw_node { | ||
42 | u16 node_id; | ||
43 | u8 color; | ||
44 | u8 port_count; | ||
45 | unsigned link_on : 1; | ||
46 | unsigned initiated_reset : 1; | ||
47 | unsigned b_path : 1; | ||
48 | u8 phy_speed : 3; /* As in the self ID packet. */ | ||
49 | u8 max_speed : 5; /* Minimum of all phy-speeds and port speeds on | ||
50 | * the path from the local node to this node. */ | ||
51 | u8 max_depth : 4; /* Maximum depth to any leaf node */ | ||
52 | u8 max_hops : 4; /* Max hops in this sub tree */ | ||
53 | atomic_t ref_count; | ||
54 | |||
55 | /* For serializing node topology into a list. */ | ||
56 | struct list_head link; | ||
57 | |||
58 | /* Upper layer specific data. */ | ||
59 | void *data; | ||
60 | |||
61 | struct fw_port ports[0]; | ||
62 | }; | ||
63 | |||
64 | static inline struct fw_node * | ||
65 | fw_node(struct list_head *l) | ||
66 | { | ||
67 | return list_entry(l, struct fw_node, link); | ||
68 | } | ||
69 | |||
70 | static inline struct fw_node * | ||
71 | fw_node_get(struct fw_node *node) | ||
72 | { | ||
73 | atomic_inc(&node->ref_count); | ||
74 | |||
75 | return node; | ||
76 | } | ||
77 | |||
78 | static inline void | ||
79 | fw_node_put(struct fw_node *node) | ||
80 | { | ||
81 | if (atomic_dec_and_test(&node->ref_count)) | ||
82 | kfree(node); | ||
83 | } | ||
84 | |||
85 | void | ||
86 | fw_destroy_nodes(struct fw_card *card); | ||
87 | |||
88 | int | ||
89 | fw_compute_block_crc(u32 *block); | ||
90 | |||
91 | |||
92 | #endif /* __fw_topology_h */ | ||