1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/******************************************************************************
*
* Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
*
* Portions of this file are derived from the ipw3945 project, as well
* as portions of the ieee80211 subsystem header files.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*****************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <net/mac80211.h>
#include "iwl-eeprom.h"
#include "iwl-dev.h"
#include "iwl-core.h"
/* software rf-kill from user */
static int iwl_rfkill_soft_rf_kill(void *data, enum rfkill_state state)
{
struct iwl_priv *priv = data;
int err = 0;
if (!priv->rfkill)
return 0;
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return 0;
IWL_DEBUG_RF_KILL(priv, "we received soft RFKILL set to state %d\n", state);
mutex_lock(&priv->mutex);
switch (state) {
case RFKILL_STATE_UNBLOCKED:
if (iwl_is_rfkill_hw(priv)) {
err = -EBUSY;
goto out_unlock;
}
iwl_radio_kill_sw_enable_radio(priv);
break;
case RFKILL_STATE_SOFT_BLOCKED:
iwl_radio_kill_sw_disable_radio(priv);
break;
default:
IWL_WARN(priv, "we received unexpected RFKILL state %d\n",
state);
break;
}
out_unlock:
mutex_unlock(&priv->mutex);
return err;
}
int iwl_rfkill_init(struct iwl_priv *priv)
{
struct device *device = wiphy_dev(priv->hw->wiphy);
int ret = 0;
BUG_ON(device == NULL);
IWL_DEBUG_RF_KILL(priv, "Initializing RFKILL.\n");
priv->rfkill = rfkill_allocate(device, RFKILL_TYPE_WLAN);
if (!priv->rfkill) {
IWL_ERR(priv, "Unable to allocate RFKILL device.\n");
ret = -ENOMEM;
goto error;
}
priv->rfkill->name = priv->cfg->name;
priv->rfkill->data = priv;
priv->rfkill->state = RFKILL_STATE_UNBLOCKED;
priv->rfkill->toggle_radio = iwl_rfkill_soft_rf_kill;
priv->rfkill->dev.class->suspend = NULL;
priv->rfkill->dev.class->resume = NULL;
ret = rfkill_register(priv->rfkill);
if (ret) {
IWL_ERR(priv, "Unable to register RFKILL: %d\n", ret);
goto free_rfkill;
}
IWL_DEBUG_RF_KILL(priv, "RFKILL initialization complete.\n");
return ret;
free_rfkill:
if (priv->rfkill != NULL)
rfkill_free(priv->rfkill);
priv->rfkill = NULL;
error:
IWL_DEBUG_RF_KILL(priv, "RFKILL initialization complete.\n");
return ret;
}
EXPORT_SYMBOL(iwl_rfkill_init);
void iwl_rfkill_unregister(struct iwl_priv *priv)
{
if (priv->rfkill)
rfkill_unregister(priv->rfkill);
priv->rfkill = NULL;
}
EXPORT_SYMBOL(iwl_rfkill_unregister);
/* set RFKILL to the right state. */
void iwl_rfkill_set_hw_state(struct iwl_priv *priv)
{
if (!priv->rfkill)
return;
if (iwl_is_rfkill_hw(priv)) {
rfkill_force_state(priv->rfkill, RFKILL_STATE_HARD_BLOCKED);
return;
}
if (!iwl_is_rfkill_sw(priv))
rfkill_force_state(priv->rfkill, RFKILL_STATE_UNBLOCKED);
else
rfkill_force_state(priv->rfkill, RFKILL_STATE_SOFT_BLOCKED);
}
EXPORT_SYMBOL(iwl_rfkill_set_hw_state);
|
