Changeset View
Changeset View
Standalone View
Standalone View
sys/compat/linuxkpi/3.15/include/linux/cdev.h
- This file was added.
Property | Old Value | New Value |
---|---|---|
svn:eol-style | null | native \ No newline at end of property |
svn:keywords | null | FreeBSD=%H \ No newline at end of property |
svn:mime-type | null | text/plain \ No newline at end of property |
/*- | |||||
* Copyright (c) 2010 Isilon Systems, Inc. | |||||
* Copyright (c) 2010 iX Systems, Inc. | |||||
* Copyright (c) 2010 Panasas, Inc. | |||||
* Copyright (c) 2013, 2014 Mellanox Technologies, Ltd. | |||||
* All rights reserved. | |||||
* | |||||
* Redistribution and use in source and binary forms, with or without | |||||
* modification, are permitted provided that the following conditions | |||||
* are met: | |||||
* 1. Redistributions of source code must retain the above copyright | |||||
* notice unmodified, this list of conditions, and the following | |||||
* disclaimer. | |||||
* 2. Redistributions in binary form must reproduce the above copyright | |||||
* notice, this list of conditions and the following disclaimer in the | |||||
* documentation and/or other materials provided with the distribution. | |||||
* | |||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |||||
*/ | |||||
#ifndef _LINUX_CDEV_H_ | |||||
#define _LINUX_CDEV_H_ | |||||
#include <linux/_linuxkpi_shim.h> | |||||
#include <linux/kobject.h> | |||||
#include <linux/kdev_t.h> | |||||
#include <linux/list.h> | |||||
struct file_operations; | |||||
struct inode; | |||||
struct module; | |||||
#define linuxkpi_cdevsw LINUXKPI_PREFIXED_SYM(linuxkpi_cdevsw) | |||||
extern struct cdevsw linuxkpi_cdevsw; | |||||
struct linux_cdev { | |||||
struct kobject kobj; | |||||
struct module *owner; | |||||
struct cdev *cdev; | |||||
dev_t dev; | |||||
const struct file_operations *ops; | |||||
}; | |||||
static inline void | |||||
cdev_release(struct kobject *kobj) | |||||
{ | |||||
struct linux_cdev *cdev; | |||||
cdev = container_of(kobj, struct linux_cdev, kobj); | |||||
if (cdev->cdev) | |||||
destroy_dev(cdev->cdev); | |||||
kfree(cdev); | |||||
} | |||||
static inline void | |||||
cdev_static_release(struct kobject *kobj) | |||||
{ | |||||
struct linux_cdev *cdev; | |||||
cdev = container_of(kobj, struct linux_cdev, kobj); | |||||
if (cdev->cdev) | |||||
destroy_dev(cdev->cdev); | |||||
} | |||||
static struct kobj_type cdev_ktype = { | |||||
.release = cdev_release, | |||||
}; | |||||
static struct kobj_type cdev_static_ktype = { | |||||
.release = cdev_static_release, | |||||
}; | |||||
static inline void | |||||
cdev_init(struct linux_cdev *cdev, const struct file_operations *ops) | |||||
{ | |||||
kobject_init(&cdev->kobj, &cdev_static_ktype); | |||||
cdev->ops = ops; | |||||
} | |||||
static inline struct linux_cdev * | |||||
cdev_alloc(void) | |||||
{ | |||||
struct linux_cdev *cdev; | |||||
cdev = kzalloc(sizeof(struct linux_cdev), M_WAITOK); | |||||
if (cdev) | |||||
kobject_init(&cdev->kobj, &cdev_ktype); | |||||
return (cdev); | |||||
} | |||||
static inline void | |||||
cdev_put(struct linux_cdev *p) | |||||
{ | |||||
kobject_put(&p->kobj); | |||||
} | |||||
static inline int | |||||
cdev_add(struct linux_cdev *cdev, dev_t dev, unsigned count) | |||||
{ | |||||
if (count != 1) | |||||
panic("cdev_add: Unsupported count: %d", count); | |||||
cdev->cdev = make_dev(&linuxkpi_cdevsw, MINOR(dev), 0, 0, 0700, | |||||
"%s", kobject_name(&cdev->kobj)); | |||||
cdev->dev = dev; | |||||
cdev->cdev->si_drv1 = cdev; | |||||
return (0); | |||||
} | |||||
static inline void | |||||
cdev_del(struct linux_cdev *cdev) | |||||
{ | |||||
if (cdev->cdev) { | |||||
destroy_dev(cdev->cdev); | |||||
cdev->cdev = NULL; | |||||
} | |||||
kobject_put(&cdev->kobj); | |||||
} | |||||
#define cdev linux_cdev | |||||
#endif /* _LINUX_CDEV_H_ */ |