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
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
|
/*
Broadcom BCM43xx wireless driver
Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
Stefano Brivio <st3@riseup.net>
Michael Buesch <mbuesch@freenet.de>
Danny van Dyk <kugelfang@gentoo.org>
Andreas Jaggi <andreas.jaggi@waterwave.ch>
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; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "bcm43xx_leds.h"
#include "bcm43xx.h"
#include <asm/bitops.h>
static void bcm43xx_led_changestate(struct bcm43xx_led *led)
{
struct bcm43xx_private *bcm = led->bcm;
const int index = bcm43xx_led_index(led);
const u16 mask = (1 << index);
u16 ledctl;
assert(index >= 0 && index < BCM43xx_NR_LEDS);
assert(led->blink_interval);
ledctl = bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_CONTROL);
ledctl = (ledctl & mask) ? (ledctl & ~mask) : (ledctl | mask);
bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_CONTROL, ledctl);
}
static void bcm43xx_led_blink(unsigned long d)
{
struct bcm43xx_led *led = (struct bcm43xx_led *)d;
struct bcm43xx_private *bcm = led->bcm;
unsigned long flags;
spin_lock_irqsave(&bcm->leds_lock, flags);
if (led->blink_interval) {
bcm43xx_led_changestate(led);
mod_timer(&led->blink_timer, jiffies + led->blink_interval);
}
spin_unlock_irqrestore(&bcm->leds_lock, flags);
}
static void bcm43xx_led_blink_start(struct bcm43xx_led *led,
unsigned long interval)
{
if (led->blink_interval)
return;
led->blink_interval = interval;
bcm43xx_led_changestate(led);
led->blink_timer.expires = jiffies + interval;
add_timer(&led->blink_timer);
}
static void bcm43xx_led_blink_stop(struct bcm43xx_led *led, int sync)
{
struct bcm43xx_private *bcm = led->bcm;
const int index = bcm43xx_led_index(led);
u16 ledctl;
if (!led->blink_interval)
return;
if (unlikely(sync))
del_timer_sync(&led->blink_timer);
else
del_timer(&led->blink_timer);
led->blink_interval = 0;
/* Make sure the LED is turned off. */
assert(index >= 0 && index < BCM43xx_NR_LEDS);
ledctl = bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_CONTROL);
if (led->activelow)
ledctl |= (1 << index);
else
ledctl &= ~(1 << index);
bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_CONTROL, ledctl);
}
static void bcm43xx_led_init_hardcoded(struct bcm43xx_private *bcm,
struct bcm43xx_led *led,
int led_index)
{
/* This function is called, if the behaviour (and activelow)
* information for a LED is missing in the SPROM.
* We hardcode the behaviour values for various devices here.
* Note that the BCM43xx_LED_TEST_XXX behaviour values can
* be used to figure out which led is mapped to which index.
*/
switch (led_index) {
case 0:
led->behaviour = BCM43xx_LED_ACTIVITY;
if (bcm->board_vendor == PCI_VENDOR_ID_COMPAQ)
led->behaviour = BCM43xx_LED_RADIO_ALL;
break;
case 1:
led->behaviour = BCM43xx_LED_RADIO_B;
if (bcm->board_vendor == PCI_VENDOR_ID_ASUSTEK)
led->behaviour = BCM43xx_LED_ASSOC;
break;
case 2:
led->behaviour = BCM43xx_LED_RADIO_A;
break;
case 3:
led->behaviour = BCM43xx_LED_OFF;
break;
default:
assert(0);
}
}
int bcm43xx_leds_init(struct bcm43xx_private *bcm)
{
struct bcm43xx_led *led;
u8 sprom[4];
int i;
sprom[0] = bcm->sprom.wl0gpio0;
sprom[1] = bcm->sprom.wl0gpio1;
sprom[2] = bcm->sprom.wl0gpio2;
sprom[3] = bcm->sprom.wl0gpio3;
for (i = 0; i < BCM43xx_NR_LEDS; i++) {
led = &(bcm->leds[i]);
led->bcm = bcm;
setup_timer(&led->blink_timer,
bcm43xx_led_blink,
(unsigned long)led);
if (sprom[i] == 0xFF) {
bcm43xx_led_init_hardcoded(bcm, led, i);
} else {
led->behaviour = sprom[i] & BCM43xx_LED_BEHAVIOUR;
led->activelow = !!(sprom[i] & BCM43xx_LED_ACTIVELOW);
}
}
return 0;
}
void bcm43xx_leds_exit(struct bcm43xx_private *bcm)
{
struct bcm43xx_led *led;
int i;
for (i = 0; i < BCM43xx_NR_LEDS; i++) {
led = &(bcm->leds[i]);
bcm43xx_led_blink_stop(led, 1);
}
bcm43xx_leds_switch_all(bcm, 0);
}
void bcm43xx_leds_update(struct bcm43xx_private *bcm, int activity)
{
struct bcm43xx_led *led;
struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
const int transferring = (jiffies - bcm->stats.last_tx) < BCM43xx_LED_XFER_THRES;
int i, turn_on;
unsigned long interval = 0;
u16 ledctl;
unsigned long flags;
spin_lock_irqsave(&bcm->leds_lock, flags);
ledctl = bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_CONTROL);
for (i = 0; i < BCM43xx_NR_LEDS; i++) {
led = &(bcm->leds[i]);
turn_on = 0;
switch (led->behaviour) {
case BCM43xx_LED_INACTIVE:
continue;
case BCM43xx_LED_OFF:
case BCM43xx_LED_BCM4303_3:
break;
case BCM43xx_LED_ON:
turn_on = 1;
break;
case BCM43xx_LED_ACTIVITY:
case BCM43xx_LED_BCM4303_0:
turn_on = activity;
break;
case BCM43xx_LED_RADIO_ALL:
turn_on = radio->enabled;
break;
case BCM43xx_LED_RADIO_A:
case BCM43xx_LED_BCM4303_2:
turn_on = (radio->enabled && phy->type == BCM43xx_PHYTYPE_A);
break;
case BCM43xx_LED_RADIO_B:
case BCM43xx_LED_BCM4303_1:
turn_on = (radio->enabled &&
(phy->type == BCM43xx_PHYTYPE_B ||
phy->type == BCM43xx_PHYTYPE_G));
break;
case BCM43xx_LED_MODE_BG:
if (phy->type == BCM43xx_PHYTYPE_G &&
1/*FIXME: using G rates.*/)
turn_on = 1;
break;
case BCM43xx_LED_TRANSFER:
if (transferring)
bcm43xx_led_blink_start(led, BCM43xx_LEDBLINK_MEDIUM);
else
bcm43xx_led_blink_stop(led, 0);
continue;
case BCM43xx_LED_APTRANSFER:
if (bcm->ieee->iw_mode == IW_MODE_MASTER) {
if (transferring) {
interval = BCM43xx_LEDBLINK_FAST;
turn_on = 1;
}
} else {
turn_on = 1;
if (0/*TODO: not assoc*/)
interval = BCM43xx_LEDBLINK_SLOW;
else if (transferring)
interval = BCM43xx_LEDBLINK_FAST;
else
turn_on = 0;
}
if (turn_on)
bcm43xx_led_blink_start(led, interval);
else
bcm43xx_led_blink_stop(led, 0);
continue;
case BCM43xx_LED_WEIRD:
//TODO
break;
case BCM43xx_LED_ASSOC:
if (bcm->softmac->associnfo.associated)
turn_on = 1;
break;
#ifdef CONFIG_BCM43XX_DEBUG
case BCM43xx_LED_TEST_BLINKSLOW:
bcm43xx_led_blink_start(led, BCM43xx_LEDBLINK_SLOW);
continue;
case BCM43xx_LED_TEST_BLINKMEDIUM:
bcm43xx_led_blink_start(led, BCM43xx_LEDBLINK_MEDIUM);
continue;
case BCM43xx_LED_TEST_BLINKFAST:
bcm43xx_led_blink_start(led, BCM43xx_LEDBLINK_FAST);
continue;
#endif /* CONFIG_BCM43XX_DEBUG */
default:
dprintkl(KERN_INFO PFX "Bad value in leds_update,"
" led->behaviour: 0x%x\n", led->behaviour);
};
if (led->activelow)
turn_on = !turn_on;
if (turn_on)
ledctl |= (1 << i);
else
ledctl &= ~(1 << i);
}
bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_CONTROL, ledctl);
spin_unlock_irqrestore(&bcm->leds_lock, flags);
}
void bcm43xx_leds_switch_all(struct bcm43xx_private *bcm, int on)
{
struct bcm43xx_led *led;
u16 ledctl;
int i;
int bit_on;
unsigned long flags;
spin_lock_irqsave(&bcm->leds_lock, flags);
ledctl = bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_CONTROL);
for (i = 0; i < BCM43xx_NR_LEDS; i++) {
led = &(bcm->leds[i]);
if (led->behaviour == BCM43xx_LED_INACTIVE)
continue;
if (on)
bit_on = led->activelow ? 0 : 1;
else
bit_on = led->activelow ? 1 : 0;
if (bit_on)
ledctl |= (1 << i);
else
ledctl &= ~(1 << i);
}
bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_CONTROL, ledctl);
spin_unlock_irqrestore(&bcm->leds_lock, flags);
}
|
