3 Broadcom B43 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>
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.
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.
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.
32 static void b43_led_changestate(struct b43_led *led)
34 struct b43_wldev *dev = led->dev;
35 const int index = led->index;
38 B43_WARN_ON(!(index >= 0 && index < B43_NR_LEDS));
39 B43_WARN_ON(!led->blink_interval);
40 ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL);
41 ledctl ^= (1 << index);
42 b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl);
45 static void b43_led_blink(unsigned long d)
47 struct b43_led *led = (struct b43_led *)d;
48 struct b43_wldev *dev = led->dev;
51 spin_lock_irqsave(&dev->wl->leds_lock, flags);
52 if (led->blink_interval) {
53 b43_led_changestate(led);
54 mod_timer(&led->blink_timer, jiffies + led->blink_interval);
56 spin_unlock_irqrestore(&dev->wl->leds_lock, flags);
59 static void b43_led_blink_start(struct b43_led *led, unsigned long interval)
61 if (led->blink_interval)
63 led->blink_interval = interval;
64 b43_led_changestate(led);
65 led->blink_timer.expires = jiffies + interval;
66 add_timer(&led->blink_timer);
69 static void b43_led_blink_stop(struct b43_led *led, int sync)
71 struct b43_wldev *dev = led->dev;
72 const int index = led->index;
75 if (!led->blink_interval)
78 del_timer_sync(&led->blink_timer);
80 del_timer(&led->blink_timer);
81 led->blink_interval = 0;
83 /* Make sure the LED is turned off. */
84 B43_WARN_ON(!(index >= 0 && index < B43_NR_LEDS));
85 ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL);
87 ledctl |= (1 << index);
89 ledctl &= ~(1 << index);
90 b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl);
93 static void b43_led_init_hardcoded(struct b43_wldev *dev,
94 struct b43_led *led, int led_index)
96 struct ssb_bus *bus = dev->dev->bus;
98 /* This function is called, if the behaviour (and activelow)
99 * information for a LED is missing in the SPROM.
100 * We hardcode the behaviour values for various devices here.
101 * Note that the B43_LED_TEST_XXX behaviour values can
102 * be used to figure out which led is mapped to which index.
107 led->behaviour = B43_LED_ACTIVITY;
109 if (bus->boardinfo.vendor == PCI_VENDOR_ID_COMPAQ)
110 led->behaviour = B43_LED_RADIO_ALL;
113 led->behaviour = B43_LED_RADIO_B;
114 if (bus->boardinfo.vendor == PCI_VENDOR_ID_ASUSTEK)
115 led->behaviour = B43_LED_ASSOC;
118 led->behaviour = B43_LED_RADIO_A;
121 led->behaviour = B43_LED_OFF;
128 int b43_leds_init(struct b43_wldev *dev)
134 sprom[0] = dev->dev->bus->sprom.r1.gpio0;
135 sprom[1] = dev->dev->bus->sprom.r1.gpio1;
136 sprom[2] = dev->dev->bus->sprom.r1.gpio2;
137 sprom[3] = dev->dev->bus->sprom.r1.gpio3;
139 for (i = 0; i < B43_NR_LEDS; i++) {
140 led = &(dev->leds[i]);
143 setup_timer(&led->blink_timer,
144 b43_led_blink, (unsigned long)led);
146 if (sprom[i] == 0xFF) {
147 b43_led_init_hardcoded(dev, led, i);
149 led->behaviour = sprom[i] & B43_LED_BEHAVIOUR;
150 led->activelow = !!(sprom[i] & B43_LED_ACTIVELOW);
157 void b43_leds_exit(struct b43_wldev *dev)
162 for (i = 0; i < B43_NR_LEDS; i++) {
163 led = &(dev->leds[i]);
164 b43_led_blink_stop(led, 1);
166 b43_leds_switch_all(dev, 0);
169 void b43_leds_update(struct b43_wldev *dev, int activity)
172 struct b43_phy *phy = &dev->phy;
173 const int transferring =
174 (jiffies - dev->stats.last_tx) < B43_LED_XFER_THRES;
176 unsigned long interval = 0;
179 bool radio_enabled = (phy->radio_on && dev->radio_hw_enable);
181 spin_lock_irqsave(&dev->wl->leds_lock, flags);
182 ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL);
183 for (i = 0; i < B43_NR_LEDS; i++) {
184 led = &(dev->leds[i]);
187 switch (led->behaviour) {
188 case B43_LED_INACTIVE:
195 case B43_LED_ACTIVITY:
198 case B43_LED_RADIO_ALL:
199 turn_on = radio_enabled;
201 case B43_LED_RADIO_A:
202 turn_on = (radio_enabled && phy->type == B43_PHYTYPE_A);
204 case B43_LED_RADIO_B:
205 turn_on = (radio_enabled &&
206 (phy->type == B43_PHYTYPE_B
207 || phy->type == B43_PHYTYPE_G));
209 case B43_LED_MODE_BG:
210 if (phy->type == B43_PHYTYPE_G
214 case B43_LED_TRANSFER:
216 b43_led_blink_start(led, B43_LEDBLINK_MEDIUM);
218 b43_led_blink_stop(led, 0);
220 case B43_LED_APTRANSFER:
221 if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) {
223 interval = B43_LEDBLINK_FAST;
228 if (0 /*TODO: not assoc */ )
229 interval = B43_LEDBLINK_SLOW;
230 else if (transferring)
231 interval = B43_LEDBLINK_FAST;
236 b43_led_blink_start(led, interval);
238 b43_led_blink_stop(led, 0);
244 if (1 /*dev->softmac->associated */ )
247 #ifdef CONFIG_B43_DEBUG
248 case B43_LED_TEST_BLINKSLOW:
249 b43_led_blink_start(led, B43_LEDBLINK_SLOW);
251 case B43_LED_TEST_BLINKMEDIUM:
252 b43_led_blink_start(led, B43_LEDBLINK_MEDIUM);
254 case B43_LED_TEST_BLINKFAST:
255 b43_led_blink_start(led, B43_LEDBLINK_FAST);
257 #endif /* CONFIG_B43_DEBUG */
269 b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl);
270 spin_unlock_irqrestore(&dev->wl->leds_lock, flags);
273 void b43_leds_switch_all(struct b43_wldev *dev, int on)
281 spin_lock_irqsave(&dev->wl->leds_lock, flags);
282 ledctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL);
283 for (i = 0; i < B43_NR_LEDS; i++) {
284 led = &(dev->leds[i]);
285 if (led->behaviour == B43_LED_INACTIVE)
288 bit_on = led->activelow ? 0 : 1;
290 bit_on = led->activelow ? 1 : 0;
296 b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl);
297 spin_unlock_irqrestore(&dev->wl->leds_lock, flags);