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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-07 20:30:44 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-07 20:30:44 -0500
commitc8b6de16d9434405e5832b8772e4f986ddd5118e (patch)
tree03d5d92be22e83778e3cf1367f8b6847eb953eb6 /include/linux
parenta6a852e93705121e2b90bd41ad50e85a508699aa (diff)
parent8e31e607ea050c0df1483d8b6cdd5b1395c03cbe (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (48 commits) [SCSI] aacraid: do not set valid bit in sense information [SCSI] ses: add new Enclosure ULD [SCSI] enclosure: add support for enclosure services [SCSI] sr: fix test unit ready responses [SCSI] u14-34f: fix data direction bug [SCSI] aacraid: pci_set_dma_max_seg_size opened up for late model controllers [SCSI] fix BUG when sum(scatterlist) > bufflen [SCSI] arcmsr: updates (1.20.00.15) [SCSI] advansys: make 3 functions static [SCSI] Small cleanups for scsi_host.h [SCSI] dc395x: fix uninitialized var warning [SCSI] NCR53C9x: remove driver [SCSI] remove m68k NCR53C9x based drivers [SCSI] dec_esp: Remove driver [SCSI] kernel-doc: fix scsi docbook [SCSI] update my email address [SCSI] add protocol definitions [SCSI] sd: handle bad lba in sense information [SCSI] qla2xxx: Update version number to 8.02.00-k8. [SCSI] qla2xxx: Correct issue where incorrect init-fw mailbox command was used on non-NPIV capable ISPs. ...
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/enclosure.h129
1 files changed, 129 insertions, 0 deletions
diff --git a/include/linux/enclosure.h b/include/linux/enclosure.h
new file mode 100644
index 000000000000..a5978f18ca40
--- /dev/null
+++ b/include/linux/enclosure.h
@@ -0,0 +1,129 @@
1/*
2 * Enclosure Services
3 *
4 * Copyright (C) 2008 James Bottomley <James.Bottomley@HansenPartnership.com>
5 *
6**-----------------------------------------------------------------------------
7**
8** This program is free software; you can redistribute it and/or
9** modify it under the terms of the GNU General Public License
10** version 2 as published by the Free Software Foundation.
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
19** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20**
21**-----------------------------------------------------------------------------
22*/
23#ifndef _LINUX_ENCLOSURE_H_
24#define _LINUX_ENCLOSURE_H_
25
26#include <linux/device.h>
27#include <linux/list.h>
28
29/* A few generic types ... taken from ses-2 */
30enum enclosure_component_type {
31 ENCLOSURE_COMPONENT_DEVICE = 0x01,
32 ENCLOSURE_COMPONENT_ARRAY_DEVICE = 0x17,
33};
34
35/* ses-2 common element status */
36enum enclosure_status {
37 ENCLOSURE_STATUS_UNSUPPORTED = 0,
38 ENCLOSURE_STATUS_OK,
39 ENCLOSURE_STATUS_CRITICAL,
40 ENCLOSURE_STATUS_NON_CRITICAL,
41 ENCLOSURE_STATUS_UNRECOVERABLE,
42 ENCLOSURE_STATUS_NOT_INSTALLED,
43 ENCLOSURE_STATUS_UNKNOWN,
44 ENCLOSURE_STATUS_UNAVAILABLE,
45};
46
47/* SFF-8485 activity light settings */
48enum enclosure_component_setting {
49 ENCLOSURE_SETTING_DISABLED = 0,
50 ENCLOSURE_SETTING_ENABLED = 1,
51 ENCLOSURE_SETTING_BLINK_A_ON_OFF = 2,
52 ENCLOSURE_SETTING_BLINK_A_OFF_ON = 3,
53 ENCLOSURE_SETTING_BLINK_B_ON_OFF = 6,
54 ENCLOSURE_SETTING_BLINK_B_OFF_ON = 7,
55};
56
57struct enclosure_device;
58struct enclosure_component;
59struct enclosure_component_callbacks {
60 void (*get_status)(struct enclosure_device *,
61 struct enclosure_component *);
62 int (*set_status)(struct enclosure_device *,
63 struct enclosure_component *,
64 enum enclosure_status);
65 void (*get_fault)(struct enclosure_device *,
66 struct enclosure_component *);
67 int (*set_fault)(struct enclosure_device *,
68 struct enclosure_component *,
69 enum enclosure_component_setting);
70 void (*get_active)(struct enclosure_device *,
71 struct enclosure_component *);
72 int (*set_active)(struct enclosure_device *,
73 struct enclosure_component *,
74 enum enclosure_component_setting);
75 void (*get_locate)(struct enclosure_device *,
76 struct enclosure_component *);
77 int (*set_locate)(struct enclosure_device *,
78 struct enclosure_component *,
79 enum enclosure_component_setting);
80};
81
82
83struct enclosure_component {
84 void *scratch;
85 struct class_device cdev;
86 enum enclosure_component_type type;
87 int number;
88 int fault;
89 int active;
90 int locate;
91 enum enclosure_status status;
92};
93
94struct enclosure_device {
95 void *scratch;
96 struct list_head node;
97 struct class_device cdev;
98 struct enclosure_component_callbacks *cb;
99 int components;
100 struct enclosure_component component[0];
101};
102
103static inline struct enclosure_device *
104to_enclosure_device(struct class_device *dev)
105{
106 return container_of(dev, struct enclosure_device, cdev);
107}
108
109static inline struct enclosure_component *
110to_enclosure_component(struct class_device *dev)
111{
112 return container_of(dev, struct enclosure_component, cdev);
113}
114
115struct enclosure_device *
116enclosure_register(struct device *, const char *, int,
117 struct enclosure_component_callbacks *);
118void enclosure_unregister(struct enclosure_device *);
119struct enclosure_component *
120enclosure_component_register(struct enclosure_device *, unsigned int,
121 enum enclosure_component_type, const char *);
122int enclosure_add_device(struct enclosure_device *enclosure, int component,
123 struct device *dev);
124int enclosure_remove_device(struct enclosure_device *enclosure, int component);
125struct enclosure_device *enclosure_find(struct device *dev);
126int enclosure_for_each_device(int (*fn)(struct enclosure_device *, void *),
127 void *data);
128
129#endif /* _LINUX_ENCLOSURE_H_ */