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>
21 #include <linux/export.h>
23 #include "uwb-internal.h"
26 * uwb_pal_init - initialize a UWB PAL
27 * @pal: the PAL to initialize
29 void uwb_pal_init(struct uwb_pal
*pal
)
31 INIT_LIST_HEAD(&pal
->node
);
33 EXPORT_SYMBOL_GPL(uwb_pal_init
);
36 * uwb_pal_register - register a UWB PAL
39 * The PAL must be initialized with uwb_pal_init().
41 int uwb_pal_register(struct uwb_pal
*pal
)
43 struct uwb_rc
*rc
= pal
->rc
;
47 /* create a link to the uwb_rc in the PAL device's directory. */
48 ret
= sysfs_create_link(&pal
->device
->kobj
,
49 &rc
->uwb_dev
.dev
.kobj
, "uwb_rc");
52 /* create a link to the PAL in the UWB device's directory. */
53 ret
= sysfs_create_link(&rc
->uwb_dev
.dev
.kobj
,
54 &pal
->device
->kobj
, pal
->name
);
56 sysfs_remove_link(&pal
->device
->kobj
, "uwb_rc");
61 pal
->debugfs_dir
= uwb_dbg_create_pal_dir(pal
);
63 mutex_lock(&rc
->uwb_dev
.mutex
);
64 list_add(&pal
->node
, &rc
->pals
);
65 mutex_unlock(&rc
->uwb_dev
.mutex
);
69 EXPORT_SYMBOL_GPL(uwb_pal_register
);
72 * uwb_pal_register - unregister a UWB PAL
75 void uwb_pal_unregister(struct uwb_pal
*pal
)
77 struct uwb_rc
*rc
= pal
->rc
;
81 mutex_lock(&rc
->uwb_dev
.mutex
);
83 mutex_unlock(&rc
->uwb_dev
.mutex
);
85 debugfs_remove(pal
->debugfs_dir
);
88 sysfs_remove_link(&rc
->uwb_dev
.dev
.kobj
, pal
->name
);
89 sysfs_remove_link(&pal
->device
->kobj
, "uwb_rc");
92 EXPORT_SYMBOL_GPL(uwb_pal_unregister
);
95 * uwb_rc_pal_init - initialize the PAL related parts of a radio controller
96 * @rc: the radio controller
98 void uwb_rc_pal_init(struct uwb_rc
*rc
)
100 INIT_LIST_HEAD(&rc
->pals
);