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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - drivers/uwb/pal.c
4 * Copyright (C) 2008 Cambridge Silicon Radio Ltd.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License version
8 * 2 as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 #include <linux/kernel.h>
19 #include <linux/debugfs.h>
20 #include <linux/uwb.h>
22 #include "uwb-internal.h"
25 * uwb_pal_init - initialize a UWB PAL
26 * @pal: the PAL to initialize
28 void uwb_pal_init(struct uwb_pal
*pal
)
30 INIT_LIST_HEAD(&pal
->node
);
32 EXPORT_SYMBOL_GPL(uwb_pal_init
);
35 * uwb_pal_register - register a UWB PAL
38 * The PAL must be initialized with uwb_pal_init().
40 int uwb_pal_register(struct uwb_pal
*pal
)
42 struct uwb_rc
*rc
= pal
->rc
;
46 ret
= sysfs_create_link(&pal
->device
->kobj
,
47 &rc
->uwb_dev
.dev
.kobj
, "uwb_rc");
50 ret
= sysfs_create_link(&rc
->uwb_dev
.dev
.kobj
,
51 &pal
->device
->kobj
, pal
->name
);
53 sysfs_remove_link(&pal
->device
->kobj
, "uwb_rc");
58 pal
->debugfs_dir
= uwb_dbg_create_pal_dir(pal
);
60 mutex_lock(&rc
->uwb_dev
.mutex
);
61 list_add(&pal
->node
, &rc
->pals
);
62 mutex_unlock(&rc
->uwb_dev
.mutex
);
66 EXPORT_SYMBOL_GPL(uwb_pal_register
);
69 * uwb_pal_register - unregister a UWB PAL
72 void uwb_pal_unregister(struct uwb_pal
*pal
)
74 struct uwb_rc
*rc
= pal
->rc
;
78 mutex_lock(&rc
->uwb_dev
.mutex
);
80 mutex_unlock(&rc
->uwb_dev
.mutex
);
82 debugfs_remove(pal
->debugfs_dir
);
85 sysfs_remove_link(&rc
->uwb_dev
.dev
.kobj
, pal
->name
);
86 sysfs_remove_link(&pal
->device
->kobj
, "uwb_rc");
89 EXPORT_SYMBOL_GPL(uwb_pal_unregister
);
92 * uwb_rc_pal_init - initialize the PAL related parts of a radio controller
93 * @rc: the radio controller
95 void uwb_rc_pal_init(struct uwb_rc
*rc
)
97 INIT_LIST_HEAD(&rc
->pals
);