1/*-
2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice unmodified, this list of conditions, and the following
13 * disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
| 1/*-
2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice unmodified, this list of conditions, and the following
13 * disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
|
29 * $FreeBSD: head/sys/compat/linuxkpi/common/include/linux/cdev.h 290135 2015-10-29 08:28:39Z hselasky $
| 29 * $FreeBSD: head/sys/compat/linuxkpi/common/include/linux/cdev.h 290335 2015-11-03 12:37:55Z hselasky $
|
30 */
31#ifndef _LINUX_CDEV_H_
32#define _LINUX_CDEV_H_
33
34#include <linux/kobject.h>
| 30 */
31#ifndef _LINUX_CDEV_H_
32#define _LINUX_CDEV_H_
33
34#include <linux/kobject.h>
|
| 35#include <linux/sysfs.h>
|
35#include <linux/kdev_t.h>
36#include <linux/list.h>
37
38struct file_operations;
39struct inode;
40struct module;
41
42extern struct cdevsw linuxcdevsw;
43
44struct linux_cdev {
45 struct kobject kobj;
46 struct module *owner;
47 struct cdev *cdev;
48 dev_t dev;
49 const struct file_operations *ops;
50};
51
52static inline void
53cdev_release(struct kobject *kobj)
54{
55 struct linux_cdev *cdev;
56
57 cdev = container_of(kobj, struct linux_cdev, kobj);
58 if (cdev->cdev)
59 destroy_dev(cdev->cdev);
60 kfree(cdev);
61}
62
63static inline void
64cdev_static_release(struct kobject *kobj)
65{
66 struct linux_cdev *cdev;
67
68 cdev = container_of(kobj, struct linux_cdev, kobj);
69 if (cdev->cdev)
70 destroy_dev(cdev->cdev);
71}
72
73static struct kobj_type cdev_ktype = {
74 .release = cdev_release,
75};
76
77static struct kobj_type cdev_static_ktype = {
78 .release = cdev_static_release,
79};
80
81static inline void
82cdev_init(struct linux_cdev *cdev, const struct file_operations *ops)
83{
84
85 kobject_init(&cdev->kobj, &cdev_static_ktype);
86 cdev->ops = ops;
87}
88
89static inline struct linux_cdev *
90cdev_alloc(void)
91{
92 struct linux_cdev *cdev;
93
94 cdev = kzalloc(sizeof(struct linux_cdev), M_WAITOK);
95 if (cdev)
96 kobject_init(&cdev->kobj, &cdev_ktype);
97 return (cdev);
98}
99
100static inline void
101cdev_put(struct linux_cdev *p)
102{
103 kobject_put(&p->kobj);
104}
105
106static inline int
107cdev_add(struct linux_cdev *cdev, dev_t dev, unsigned count)
108{
109 if (count != 1)
110 panic("cdev_add: Unsupported count: %d", count);
111 cdev->cdev = make_dev(&linuxcdevsw, MINOR(dev), 0, 0, 0700,
112 "%s", kobject_name(&cdev->kobj));
113 cdev->dev = dev;
114 cdev->cdev->si_drv1 = cdev;
115
116 return (0);
117}
118
119static inline void
120cdev_del(struct linux_cdev *cdev)
121{
122 if (cdev->cdev) {
123 destroy_dev(cdev->cdev);
124 cdev->cdev = NULL;
125 }
126 kobject_put(&cdev->kobj);
127}
128
129#define cdev linux_cdev
130
131#endif /* _LINUX_CDEV_H_ */
| 36#include <linux/kdev_t.h>
37#include <linux/list.h>
38
39struct file_operations;
40struct inode;
41struct module;
42
43extern struct cdevsw linuxcdevsw;
44
45struct linux_cdev {
46 struct kobject kobj;
47 struct module *owner;
48 struct cdev *cdev;
49 dev_t dev;
50 const struct file_operations *ops;
51};
52
53static inline void
54cdev_release(struct kobject *kobj)
55{
56 struct linux_cdev *cdev;
57
58 cdev = container_of(kobj, struct linux_cdev, kobj);
59 if (cdev->cdev)
60 destroy_dev(cdev->cdev);
61 kfree(cdev);
62}
63
64static inline void
65cdev_static_release(struct kobject *kobj)
66{
67 struct linux_cdev *cdev;
68
69 cdev = container_of(kobj, struct linux_cdev, kobj);
70 if (cdev->cdev)
71 destroy_dev(cdev->cdev);
72}
73
74static struct kobj_type cdev_ktype = {
75 .release = cdev_release,
76};
77
78static struct kobj_type cdev_static_ktype = {
79 .release = cdev_static_release,
80};
81
82static inline void
83cdev_init(struct linux_cdev *cdev, const struct file_operations *ops)
84{
85
86 kobject_init(&cdev->kobj, &cdev_static_ktype);
87 cdev->ops = ops;
88}
89
90static inline struct linux_cdev *
91cdev_alloc(void)
92{
93 struct linux_cdev *cdev;
94
95 cdev = kzalloc(sizeof(struct linux_cdev), M_WAITOK);
96 if (cdev)
97 kobject_init(&cdev->kobj, &cdev_ktype);
98 return (cdev);
99}
100
101static inline void
102cdev_put(struct linux_cdev *p)
103{
104 kobject_put(&p->kobj);
105}
106
107static inline int
108cdev_add(struct linux_cdev *cdev, dev_t dev, unsigned count)
109{
110 if (count != 1)
111 panic("cdev_add: Unsupported count: %d", count);
112 cdev->cdev = make_dev(&linuxcdevsw, MINOR(dev), 0, 0, 0700,
113 "%s", kobject_name(&cdev->kobj));
114 cdev->dev = dev;
115 cdev->cdev->si_drv1 = cdev;
116
117 return (0);
118}
119
120static inline void
121cdev_del(struct linux_cdev *cdev)
122{
123 if (cdev->cdev) {
124 destroy_dev(cdev->cdev);
125 cdev->cdev = NULL;
126 }
127 kobject_put(&cdev->kobj);
128}
129
130#define cdev linux_cdev
131
132#endif /* _LINUX_CDEV_H_ */
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