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authorMichael Buesch <mb@bu3sch.de>2007-09-18 15:39:42 -0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-10 19:51:37 -0400
commite4d6b7951812d98417feb10784e400e253caf633 (patch)
tree4f653c52b4cffd5ade2eb166a56b306c9181ed08 /drivers/net/wireless/b43/leds.c
parent61e115a56d1aafd6e6a8a9fee8ac099a6128ac7b (diff)
[B43]: add mac80211-based driver for modern BCM43xx devices
Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/wireless/b43/leds.c')
-rw-r--r--drivers/net/wireless/b43/leds.c299
1 files changed, 299 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/leds.c b/drivers/net/wireless/b43/leds.c
new file mode 100644
index 000000000000..535f960412d7
--- /dev/null
+++ b/drivers/net/wireless/b43/leds.c
@@ -0,0 +1,299 @@
1/*
2
3 Broadcom B43 wireless driver
4
5 Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
6 Stefano Brivio <st3@riseup.net>
7 Michael Buesch <mb@bu3sch.de>
8 Danny van Dyk <kugelfang@gentoo.org>
9 Andreas Jaggi <andreas.jaggi@waterwave.ch>
10
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with this program; see the file COPYING. If not, write to
23 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
24 Boston, MA 02110-1301, USA.
25
26*/
27
28#include "b43.h"
29#include "leds.h"
30#include "main.h"
31
32static void b43_led_changestate(struct b43_led *led)
33{
34 struct b43_wldev *dev = led->dev;
35 const int index = b43_led_index(led);
36 const u16 mask = (1 << index);
37 u16 ledctl;
38
39 B43_WARN_ON(!(index >= 0 && index < B43_NR_LEDS));
40 B43_WARN_ON(!led->blink_interval);
41 ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL);
42 ledctl = (ledctl & mask) ? (ledctl & ~mask) : (ledctl | mask);
43 b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl);
44}
45
46static void b43_led_blink(unsigned long d)
47{
48 struct b43_led *led = (struct b43_led *)d;
49 struct b43_wldev *dev = led->dev;
50 unsigned long flags;
51
52 spin_lock_irqsave(&dev->wl->leds_lock, flags);
53 if (led->blink_interval) {
54 b43_led_changestate(led);
55 mod_timer(&led->blink_timer, jiffies + led->blink_interval);
56 }
57 spin_unlock_irqrestore(&dev->wl->leds_lock, flags);
58}
59
60static void b43_led_blink_start(struct b43_led *led, unsigned long interval)
61{
62 if (led->blink_interval)
63 return;
64 led->blink_interval = interval;
65 b43_led_changestate(led);
66 led->blink_timer.expires = jiffies + interval;
67 add_timer(&led->blink_timer);
68}
69
70static void b43_led_blink_stop(struct b43_led *led, int sync)
71{
72 struct b43_wldev *dev = led->dev;
73 const int index = b43_led_index(led);
74 u16 ledctl;
75
76 if (!led->blink_interval)
77 return;
78 if (unlikely(sync))
79 del_timer_sync(&led->blink_timer);
80 else
81 del_timer(&led->blink_timer);
82 led->blink_interval = 0;
83
84 /* Make sure the LED is turned off. */
85 B43_WARN_ON(!(index >= 0 && index < B43_NR_LEDS));
86 ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL);
87 if (led->activelow)
88 ledctl |= (1 << index);
89 else
90 ledctl &= ~(1 << index);
91 b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl);
92}
93
94static void b43_led_init_hardcoded(struct b43_wldev *dev,
95 struct b43_led *led, int led_index)
96{
97 struct ssb_bus *bus = dev->dev->bus;
98
99 /* This function is called, if the behaviour (and activelow)
100 * information for a LED is missing in the SPROM.
101 * We hardcode the behaviour values for various devices here.
102 * Note that the B43_LED_TEST_XXX behaviour values can
103 * be used to figure out which led is mapped to which index.
104 */
105
106 switch (led_index) {
107 case 0:
108 led->behaviour = B43_LED_ACTIVITY;
109 led->activelow = 1;
110 if (bus->boardinfo.vendor == PCI_VENDOR_ID_COMPAQ)
111 led->behaviour = B43_LED_RADIO_ALL;
112 break;
113 case 1:
114 led->behaviour = B43_LED_RADIO_B;
115 if (bus->boardinfo.vendor == PCI_VENDOR_ID_ASUSTEK)
116 led->behaviour = B43_LED_ASSOC;
117 break;
118 case 2:
119 led->behaviour = B43_LED_RADIO_A;
120 break;
121 case 3:
122 led->behaviour = B43_LED_OFF;
123 break;
124 default:
125 B43_WARN_ON(1);
126 }
127}
128
129int b43_leds_init(struct b43_wldev *dev)
130{
131 struct b43_led *led;
132 u8 sprom[4];
133 int i;
134
135 sprom[0] = dev->dev->bus->sprom.r1.gpio0;
136 sprom[1] = dev->dev->bus->sprom.r1.gpio1;
137 sprom[2] = dev->dev->bus->sprom.r1.gpio2;
138 sprom[3] = dev->dev->bus->sprom.r1.gpio3;
139
140 for (i = 0; i < B43_NR_LEDS; i++) {
141 led = &(dev->leds[i]);
142 led->dev = dev;
143 setup_timer(&led->blink_timer,
144 b43_led_blink, (unsigned long)led);
145
146 if (sprom[i] == 0xFF) {
147 b43_led_init_hardcoded(dev, led, i);
148 } else {
149 led->behaviour = sprom[i] & B43_LED_BEHAVIOUR;
150 led->activelow = !!(sprom[i] & B43_LED_ACTIVELOW);
151 }
152 }
153
154 return 0;
155}
156
157void b43_leds_exit(struct b43_wldev *dev)
158{
159 struct b43_led *led;
160 int i;
161
162 for (i = 0; i < B43_NR_LEDS; i++) {
163 led = &(dev->leds[i]);
164 b43_led_blink_stop(led, 1);
165 }
166 b43_leds_switch_all(dev, 0);
167}
168
169void b43_leds_update(struct b43_wldev *dev, int activity)
170{
171 struct b43_led *led;
172 struct b43_phy *phy = &dev->phy;
173 const int transferring =
174 (jiffies - dev->stats.last_tx) < B43_LED_XFER_THRES;
175 int i, turn_on;
176 unsigned long interval = 0;
177 u16 ledctl;
178 unsigned long flags;
179
180 spin_lock_irqsave(&dev->wl->leds_lock, flags);
181 ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL);
182 for (i = 0; i < B43_NR_LEDS; i++) {
183 led = &(dev->leds[i]);
184
185 turn_on = 0;
186 switch (led->behaviour) {
187 case B43_LED_INACTIVE:
188 continue;
189 case B43_LED_OFF:
190 break;
191 case B43_LED_ON:
192 turn_on = 1;
193 break;
194 case B43_LED_ACTIVITY:
195 turn_on = activity;
196 break;
197 case B43_LED_RADIO_ALL:
198 turn_on = phy->radio_on && b43_is_hw_radio_enabled(dev);
199 break;
200 case B43_LED_RADIO_A:
201 turn_on = (phy->radio_on && b43_is_hw_radio_enabled(dev)
202 && phy->type == B43_PHYTYPE_A);
203 break;
204 case B43_LED_RADIO_B:
205 turn_on = (phy->radio_on && b43_is_hw_radio_enabled(dev)
206 && (phy->type == B43_PHYTYPE_B
207 || phy->type == B43_PHYTYPE_G));
208 break;
209 case B43_LED_MODE_BG:
210 if (phy->type == B43_PHYTYPE_G
211 && b43_is_hw_radio_enabled(dev)
212 && 1 /*FIXME: using G rates. */ )
213 turn_on = 1;
214 break;
215 case B43_LED_TRANSFER:
216 if (transferring)
217 b43_led_blink_start(led, B43_LEDBLINK_MEDIUM);
218 else
219 b43_led_blink_stop(led, 0);
220 continue;
221 case B43_LED_APTRANSFER:
222 if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) {
223 if (transferring) {
224 interval = B43_LEDBLINK_FAST;
225 turn_on = 1;
226 }
227 } else {
228 turn_on = 1;
229 if (0 /*TODO: not assoc */ )
230 interval = B43_LEDBLINK_SLOW;
231 else if (transferring)
232 interval = B43_LEDBLINK_FAST;
233 else
234 turn_on = 0;
235 }
236 if (turn_on)
237 b43_led_blink_start(led, interval);
238 else
239 b43_led_blink_stop(led, 0);
240 continue;
241 case B43_LED_WEIRD:
242 //TODO
243 break;
244 case B43_LED_ASSOC:
245 if (1 /*dev->softmac->associated */ )
246 turn_on = 1;
247 break;
248#ifdef CONFIG_B43_DEBUG
249 case B43_LED_TEST_BLINKSLOW:
250 b43_led_blink_start(led, B43_LEDBLINK_SLOW);
251 continue;
252 case B43_LED_TEST_BLINKMEDIUM:
253 b43_led_blink_start(led, B43_LEDBLINK_MEDIUM);
254 continue;
255 case B43_LED_TEST_BLINKFAST:
256 b43_led_blink_start(led, B43_LEDBLINK_FAST);
257 continue;
258#endif /* CONFIG_B43_DEBUG */
259 default:
260 B43_WARN_ON(1);
261 };
262
263 if (led->activelow)
264 turn_on = !turn_on;
265 if (turn_on)
266 ledctl |= (1 << i);
267 else
268 ledctl &= ~(1 << i);
269 }
270 b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl);
271 spin_unlock_irqrestore(&dev->wl->leds_lock, flags);
272}
273
274void b43_leds_switch_all(struct b43_wldev *dev, int on)
275{
276 struct b43_led *led;
277 u16 ledctl;
278 int i;
279 int bit_on;
280 unsigned long flags;
281
282 spin_lock_irqsave(&dev->wl->leds_lock, flags);
283 ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL);
284 for (i = 0; i < B43_NR_LEDS; i++) {
285 led = &(dev->leds[i]);
286 if (led->behaviour == B43_LED_INACTIVE)
287 continue;
288 if (on)
289 bit_on = led->activelow ? 0 : 1;
290 else
291 bit_on = led->activelow ? 1 : 0;
292 if (bit_on)
293 ledctl |= (1 << i);
294 else
295 ledctl &= ~(1 << i);
296 }
297 b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl);
298 spin_unlock_irqrestore(&dev->wl->leds_lock, flags);
299}
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