3 Broadcom B43legacy wireless driver
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 Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net>
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; see the file COPYING. If not, write to
24 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
25 Boston, MA 02110-1301, USA.
30 #include "b43legacy.h"
33 static void b43legacy_led_changestate(struct b43legacy_led *led)
35 struct b43legacy_wldev *dev = led->dev;
36 const int index = led->index;
39 B43legacy_WARN_ON(!(index >= 0 && index < B43legacy_NR_LEDS));
40 B43legacy_WARN_ON(!led->blink_interval);
41 ledctl = b43legacy_read16(dev, B43legacy_MMIO_GPIO_CONTROL);
42 ledctl ^= (1 << index);
43 b43legacy_write16(dev, B43legacy_MMIO_GPIO_CONTROL, ledctl);
46 static void b43legacy_led_blink(unsigned long d)
48 struct b43legacy_led *led = (struct b43legacy_led *)d;
49 struct b43legacy_wldev *dev = led->dev;
52 spin_lock_irqsave(&dev->wl->leds_lock, flags);
53 if (led->blink_interval) {
54 b43legacy_led_changestate(led);
55 mod_timer(&led->blink_timer, jiffies + led->blink_interval);
57 spin_unlock_irqrestore(&dev->wl->leds_lock, flags);
60 static void b43legacy_led_blink_start(struct b43legacy_led *led,
61 unsigned long interval)
63 if (led->blink_interval)
65 led->blink_interval = interval;
66 b43legacy_led_changestate(led);
67 led->blink_timer.expires = jiffies + interval;
68 add_timer(&led->blink_timer);
71 static void b43legacy_led_blink_stop(struct b43legacy_led *led, int sync)
73 struct b43legacy_wldev *dev = led->dev;
74 const int index = led->index;
77 if (!led->blink_interval)
80 del_timer_sync(&led->blink_timer);
82 del_timer(&led->blink_timer);
83 led->blink_interval = 0;
85 /* Make sure the LED is turned off. */
86 B43legacy_WARN_ON(!(index >= 0 && index < B43legacy_NR_LEDS));
87 ledctl = b43legacy_read16(dev, B43legacy_MMIO_GPIO_CONTROL);
89 ledctl |= (1 << index);
91 ledctl &= ~(1 << index);
92 b43legacy_write16(dev, B43legacy_MMIO_GPIO_CONTROL, ledctl);
95 static void b43legacy_led_init_hardcoded(struct b43legacy_wldev *dev,
96 struct b43legacy_led *led,
99 struct ssb_bus *bus = dev->dev->bus;
101 /* This function is called, if the behaviour (and activelow)
102 * information for a LED is missing in the SPROM.
103 * We hardcode the behaviour values for various devices here.
104 * Note that the B43legacy_LED_TEST_XXX behaviour values can
105 * be used to figure out which led is mapped to which index.
110 led->behaviour = B43legacy_LED_ACTIVITY;
112 if (bus->boardinfo.vendor == PCI_VENDOR_ID_COMPAQ)
113 led->behaviour = B43legacy_LED_RADIO_ALL;
116 led->behaviour = B43legacy_LED_RADIO_B;
117 if (bus->boardinfo.vendor == PCI_VENDOR_ID_ASUSTEK)
118 led->behaviour = B43legacy_LED_ASSOC;
121 led->behaviour = B43legacy_LED_RADIO_A;
124 led->behaviour = B43legacy_LED_OFF;
131 int b43legacy_leds_init(struct b43legacy_wldev *dev)
133 struct b43legacy_led *led;
137 sprom[0] = dev->dev->bus->sprom.r1.gpio0;
138 sprom[1] = dev->dev->bus->sprom.r1.gpio1;
139 sprom[2] = dev->dev->bus->sprom.r1.gpio2;
140 sprom[3] = dev->dev->bus->sprom.r1.gpio3;
142 for (i = 0; i < B43legacy_NR_LEDS; i++) {
143 led = &(dev->leds[i]);
146 setup_timer(&led->blink_timer,
150 if (sprom[i] == 0xFF)
151 b43legacy_led_init_hardcoded(dev, led, i);
153 led->behaviour = sprom[i] & B43legacy_LED_BEHAVIOUR;
154 led->activelow = !!(sprom[i] &
155 B43legacy_LED_ACTIVELOW);
162 void b43legacy_leds_exit(struct b43legacy_wldev *dev)
164 struct b43legacy_led *led;
167 for (i = 0; i < B43legacy_NR_LEDS; i++) {
168 led = &(dev->leds[i]);
169 b43legacy_led_blink_stop(led, 1);
171 b43legacy_leds_switch_all(dev, 0);
174 void b43legacy_leds_update(struct b43legacy_wldev *dev, int activity)
176 struct b43legacy_led *led;
177 struct b43legacy_phy *phy = &dev->phy;
178 const int transferring = (jiffies - dev->stats.last_tx)
179 < B43legacy_LED_XFER_THRES;
182 unsigned long interval = 0;
185 bool radio_enabled = (phy->radio_on && dev->radio_hw_enable);
187 spin_lock_irqsave(&dev->wl->leds_lock, flags);
188 ledctl = b43legacy_read16(dev, B43legacy_MMIO_GPIO_CONTROL);
189 for (i = 0; i < B43legacy_NR_LEDS; i++) {
190 led = &(dev->leds[i]);
193 switch (led->behaviour) {
194 case B43legacy_LED_INACTIVE:
196 case B43legacy_LED_OFF:
198 case B43legacy_LED_ON:
201 case B43legacy_LED_ACTIVITY:
204 case B43legacy_LED_RADIO_ALL:
205 turn_on = radio_enabled;
207 case B43legacy_LED_RADIO_A:
209 case B43legacy_LED_RADIO_B:
210 turn_on = radio_enabled;
212 case B43legacy_LED_MODE_BG:
213 if (phy->type == B43legacy_PHYTYPE_G && radio_enabled)
216 case B43legacy_LED_TRANSFER:
218 b43legacy_led_blink_start(led,
219 B43legacy_LEDBLINK_MEDIUM);
221 b43legacy_led_blink_stop(led, 0);
223 case B43legacy_LED_APTRANSFER:
224 if (b43legacy_is_mode(dev->wl,
225 IEEE80211_IF_TYPE_AP)) {
227 interval = B43legacy_LEDBLINK_FAST;
233 interval = B43legacy_LEDBLINK_FAST;
238 b43legacy_led_blink_start(led, interval);
240 b43legacy_led_blink_stop(led, 0);
242 case B43legacy_LED_WEIRD:
244 case B43legacy_LED_ASSOC:
246 #ifdef CONFIG_B43LEGACY_DEBUG
247 case B43legacy_LED_TEST_BLINKSLOW:
248 b43legacy_led_blink_start(led, B43legacy_LEDBLINK_SLOW);
250 case B43legacy_LED_TEST_BLINKMEDIUM:
251 b43legacy_led_blink_start(led,
252 B43legacy_LEDBLINK_MEDIUM);
254 case B43legacy_LED_TEST_BLINKFAST:
255 b43legacy_led_blink_start(led, B43legacy_LEDBLINK_FAST);
257 #endif /* CONFIG_B43LEGACY_DEBUG */
269 b43legacy_write16(dev, B43legacy_MMIO_GPIO_CONTROL, ledctl);
270 spin_unlock_irqrestore(&dev->wl->leds_lock, flags);
273 void b43legacy_leds_switch_all(struct b43legacy_wldev *dev, int on)
275 struct b43legacy_led *led;
281 spin_lock_irqsave(&dev->wl->leds_lock, flags);
282 ledctl = b43legacy_read16(dev, B43legacy_MMIO_GPIO_CONTROL);
283 for (i = 0; i < B43legacy_NR_LEDS; i++) {
284 led = &(dev->leds[i]);
285 if (led->behaviour == B43legacy_LED_INACTIVE)
288 bit_on = led->activelow ? 0 : 1;
290 bit_on = led->activelow ? 1 : 0;
296 b43legacy_write16(dev, B43legacy_MMIO_GPIO_CONTROL, ledctl);
297 spin_unlock_irqrestore(&dev->wl->leds_lock, flags);