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
145
146
147
148
|
/*
Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
<http://rt2x00.serialmonkey.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
Module: rt2x00rfkill
Abstract: rt2x00 rfkill routines.
*/
/*
* Set enviroment defines for rt2x00.h
*/
#define DRV_NAME "rt2x00lib"
#include <linux/input-polldev.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/rfkill.h>
#include "rt2x00.h"
#include "rt2x00lib.h"
static int rt2x00rfkill_toggle_radio(void *data, enum rfkill_state state)
{
struct rt2x00_dev *rt2x00dev = data;
int retval = 0;
if (unlikely(!rt2x00dev))
return 0;
/*
* Only continue if we have an active interface,
* either monitor or non-monitor should be present.
*/
if (!is_interface_present(&rt2x00dev->interface) &&
!is_monitor_present(&rt2x00dev->interface))
return 0;
if (state == RFKILL_STATE_ON) {
INFO(rt2x00dev, "Hardware button pressed, enabling radio.\n");
__set_bit(DEVICE_ENABLED_RADIO_HW, &rt2x00dev->flags);
retval = rt2x00lib_enable_radio(rt2x00dev);
} else if (state == RFKILL_STATE_OFF) {
INFO(rt2x00dev, "Hardware button pressed, disabling radio.\n");
__clear_bit(DEVICE_ENABLED_RADIO_HW, &rt2x00dev->flags);
rt2x00lib_disable_radio(rt2x00dev);
}
return retval;
}
static void rt2x00rfkill_poll(struct input_polled_dev *poll_dev)
{
struct rt2x00_dev *rt2x00dev = poll_dev->private;
int state = rt2x00dev->ops->lib->rfkill_poll(rt2x00dev);
if (rt2x00dev->rfkill->state != state)
input_report_key(poll_dev->input, KEY_WLAN, 1);
}
int rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
{
int retval;
if (!test_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
return 0;
retval = rfkill_register(rt2x00dev->rfkill);
if (retval) {
ERROR(rt2x00dev, "Failed to register rfkill handler.\n");
return retval;
}
retval = input_register_polled_device(rt2x00dev->poll_dev);
if (retval) {
ERROR(rt2x00dev, "Failed to register polled device.\n");
rfkill_unregister(rt2x00dev->rfkill);
return retval;
}
return 0;
}
void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev)
{
if (!test_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
return;
input_unregister_polled_device(rt2x00dev->poll_dev);
rfkill_unregister(rt2x00dev->rfkill);
}
int rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev)
{
struct device *device = wiphy_dev(rt2x00dev->hw->wiphy);
if (!test_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
return 0;
rt2x00dev->rfkill = rfkill_allocate(device, RFKILL_TYPE_WLAN);
if (!rt2x00dev->rfkill) {
ERROR(rt2x00dev, "Failed to allocate rfkill handler.\n");
return -ENOMEM;
}
rt2x00dev->rfkill->name = rt2x00dev->ops->name;
rt2x00dev->rfkill->data = rt2x00dev;
rt2x00dev->rfkill->state = rt2x00dev->ops->lib->rfkill_poll(rt2x00dev);
rt2x00dev->rfkill->toggle_radio = rt2x00rfkill_toggle_radio;
rt2x00dev->poll_dev = input_allocate_polled_device();
if (!rt2x00dev->poll_dev) {
ERROR(rt2x00dev, "Failed to allocate polled device.\n");
rfkill_free(rt2x00dev->rfkill);
return -ENOMEM;
}
rt2x00dev->poll_dev->private = rt2x00dev;
rt2x00dev->poll_dev->poll = rt2x00rfkill_poll;
rt2x00dev->poll_dev->poll_interval = RFKILL_POLL_INTERVAL;
return 0;
}
void rt2x00rfkill_free(struct rt2x00_dev *rt2x00dev)
{
if (!test_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
return;
input_free_polled_device(rt2x00dev->poll_dev);
rfkill_free(rt2x00dev->rfkill);
}
|
