4 * Copyright (C) 2008 James Bottomley <James.Bottomley@HansenPartnership.com>
6 **-----------------------------------------------------------------------------
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.
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
19 ** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 **-----------------------------------------------------------------------------
23 #ifndef _LINUX_ENCLOSURE_H_
24 #define _LINUX_ENCLOSURE_H_
26 #include <linux/device.h>
27 #include <linux/list.h>
29 /* A few generic types ... taken from ses-2 */
30 enum enclosure_component_type
{
31 ENCLOSURE_COMPONENT_DEVICE
= 0x01,
32 ENCLOSURE_COMPONENT_ARRAY_DEVICE
= 0x17,
35 /* ses-2 common element status */
36 enum enclosure_status
{
37 ENCLOSURE_STATUS_UNSUPPORTED
= 0,
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 /* last element for counting purposes */
49 /* SFF-8485 activity light settings */
50 enum enclosure_component_setting
{
51 ENCLOSURE_SETTING_DISABLED
= 0,
52 ENCLOSURE_SETTING_ENABLED
= 1,
53 ENCLOSURE_SETTING_BLINK_A_ON_OFF
= 2,
54 ENCLOSURE_SETTING_BLINK_A_OFF_ON
= 3,
55 ENCLOSURE_SETTING_BLINK_B_ON_OFF
= 6,
56 ENCLOSURE_SETTING_BLINK_B_OFF_ON
= 7,
59 struct enclosure_device
;
60 struct enclosure_component
;
61 struct enclosure_component_callbacks
{
62 void (*get_status
)(struct enclosure_device
*,
63 struct enclosure_component
*);
64 int (*set_status
)(struct enclosure_device
*,
65 struct enclosure_component
*,
66 enum enclosure_status
);
67 void (*get_fault
)(struct enclosure_device
*,
68 struct enclosure_component
*);
69 int (*set_fault
)(struct enclosure_device
*,
70 struct enclosure_component
*,
71 enum enclosure_component_setting
);
72 void (*get_active
)(struct enclosure_device
*,
73 struct enclosure_component
*);
74 int (*set_active
)(struct enclosure_device
*,
75 struct enclosure_component
*,
76 enum enclosure_component_setting
);
77 void (*get_locate
)(struct enclosure_device
*,
78 struct enclosure_component
*);
79 int (*set_locate
)(struct enclosure_device
*,
80 struct enclosure_component
*,
81 enum enclosure_component_setting
);
82 void (*get_power_status
)(struct enclosure_device
*,
83 struct enclosure_component
*);
84 int (*set_power_status
)(struct enclosure_device
*,
85 struct enclosure_component
*,
87 int (*show_id
)(struct enclosure_device
*, char *buf
);
91 struct enclosure_component
{
95 enum enclosure_component_type type
;
101 enum enclosure_status status
;
105 struct enclosure_device
{
107 struct list_head node
;
109 struct enclosure_component_callbacks
*cb
;
111 struct enclosure_component component
[0];
114 static inline struct enclosure_device
*
115 to_enclosure_device(struct device
*dev
)
117 return container_of(dev
, struct enclosure_device
, edev
);
120 static inline struct enclosure_component
*
121 to_enclosure_component(struct device
*dev
)
123 return container_of(dev
, struct enclosure_component
, cdev
);
126 struct enclosure_device
*
127 enclosure_register(struct device
*, const char *, int,
128 struct enclosure_component_callbacks
*);
129 void enclosure_unregister(struct enclosure_device
*);
130 struct enclosure_component
*
131 enclosure_component_alloc(struct enclosure_device
*, unsigned int,
132 enum enclosure_component_type
, const char *);
133 int enclosure_component_register(struct enclosure_component
*);
134 int enclosure_add_device(struct enclosure_device
*enclosure
, int component
,
136 int enclosure_remove_device(struct enclosure_device
*, struct device
*);
137 struct enclosure_device
*enclosure_find(struct device
*dev
,
138 struct enclosure_device
*start
);
139 int enclosure_for_each_device(int (*fn
)(struct enclosure_device
*, void *),
142 #endif /* _LINUX_ENCLOSURE_H_ */