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
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
/*
* Common code for mac80211 Prism54 drivers
*
* Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
* Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de>
* Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
*
* Based on:
* - the islsm (softmac prism54) driver, which is:
* Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
* - stlc45xx driver
* Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/firmware.h>
#include <linux/etherdevice.h>
#include <net/mac80211.h>
#ifdef CONFIG_P54_LEDS
#include <linux/leds.h>
#endif /* CONFIG_P54_LEDS */
#include "p54.h"
#include "lmac.h"
static void p54_update_leds(struct work_struct *work)
{
struct p54_common *priv = container_of(work, struct p54_common,
led_work.work);
int err, i, tmp, blink_delay = 400;
bool rerun = false;
/* Don't toggle the LED, when the device is down. */
if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
return ;
for (i = 0; i < ARRAY_SIZE(priv->leds); i++)
if (priv->leds[i].toggled) {
priv->softled_state |= BIT(i);
tmp = 70 + 200 / (priv->leds[i].toggled);
if (tmp < blink_delay)
blink_delay = tmp;
if (priv->leds[i].led_dev.brightness == LED_OFF)
rerun = true;
priv->leds[i].toggled =
!!priv->leds[i].led_dev.brightness;
} else
priv->softled_state &= ~BIT(i);
err = p54_set_leds(priv);
if (err && net_ratelimit())
printk(KERN_ERR "%s: failed to update LEDs (%d).\n",
wiphy_name(priv->hw->wiphy), err);
if (rerun)
queue_delayed_work(priv->hw->workqueue, &priv->led_work,
msecs_to_jiffies(blink_delay));
}
static void p54_led_brightness_set(struct led_classdev *led_dev,
enum led_brightness brightness)
{
struct p54_led_dev *led = container_of(led_dev, struct p54_led_dev,
led_dev);
struct ieee80211_hw *dev = led->hw_dev;
struct p54_common *priv = dev->priv;
if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
return ;
if ((brightness) && (led->registered)) {
led->toggled++;
queue_delayed_work(priv->hw->workqueue, &priv->led_work,
HZ/10);
}
}
static int p54_register_led(struct p54_common *priv,
unsigned int led_index,
char *name, char *trigger)
{
struct p54_led_dev *led = &priv->leds[led_index];
int err;
if (led->registered)
return -EEXIST;
snprintf(led->name, sizeof(led->name), "p54-%s::%s",
wiphy_name(priv->hw->wiphy), name);
led->hw_dev = priv->hw;
led->index = led_index;
led->led_dev.name = led->name;
led->led_dev.default_trigger = trigger;
led->led_dev.brightness_set = p54_led_brightness_set;
err = led_classdev_register(wiphy_dev(priv->hw->wiphy), &led->led_dev);
if (err)
printk(KERN_ERR "%s: Failed to register %s LED.\n",
wiphy_name(priv->hw->wiphy), name);
else
led->registered = 1;
return err;
}
int p54_init_leds(struct p54_common *priv)
{
int err;
/*
* TODO:
* Figure out if the EEPROM contains some hints about the number
* of available/programmable LEDs of the device.
*/
INIT_DELAYED_WORK(&priv->led_work, p54_update_leds);
err = p54_register_led(priv, 0, "assoc",
ieee80211_get_assoc_led_name(priv->hw));
if (err)
return err;
err = p54_register_led(priv, 1, "tx",
ieee80211_get_tx_led_name(priv->hw));
if (err)
return err;
err = p54_register_led(priv, 2, "rx",
ieee80211_get_rx_led_name(priv->hw));
if (err)
return err;
err = p54_register_led(priv, 3, "radio",
ieee80211_get_radio_led_name(priv->hw));
if (err)
return err;
err = p54_set_leds(priv);
return err;
}
void p54_unregister_leds(struct p54_common *priv)
{
int i;
for (i = 0; i < ARRAY_SIZE(priv->leds); i++) {
if (priv->leds[i].registered) {
priv->leds[i].registered = false;
priv->leds[i].toggled = 0;
led_classdev_unregister(&priv->leds[i].led_dev);
}
}
cancel_delayed_work_sync(&priv->led_work);
}
|
