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 = b43_led_index(led);
36 const u16 mask = (1 << index);
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);
46 static void b43_led_blink(unsigned long d)
48 struct b43_led *led = (struct b43_led *)d;
49 struct b43_wldev *dev = led->dev;
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);
57 spin_unlock_irqrestore(&dev->wl->leds_lock, flags);
60 static void b43_led_blink_start(struct b43_led *led, unsigned long interval)
62 if (led->blink_interval)
64 led->blink_interval = interval;
65 b43_led_changestate(led);
66 led->blink_timer.expires = jiffies + interval;
67 add_timer(&led->blink_timer);
70 static void b43_led_blink_stop(struct b43_led *led, int sync)
72 struct b43_wldev *dev = led->dev;
73 const int index = b43_led_index(led);
76 if (!led->blink_interval)
79 del_timer_sync(&led->blink_timer);
81 del_timer(&led->blink_timer);
82 led->blink_interval = 0;
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);
88 ledctl |= (1 << index);
90 ledctl &= ~(1 << index);
91 b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl);
94 static void b43_led_init_hardcoded(struct b43_wldev *dev,
95 struct b43_led *led, int led_index)
97 struct ssb_bus *bus = dev->dev->bus;
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.
108 led->behaviour = B43_LED_ACTIVITY;
110 if (bus->boardinfo.vendor == PCI_VENDOR_ID_COMPAQ)
111 led->behaviour = B43_LED_RADIO_ALL;
114 led->behaviour = B43_LED_RADIO_B;
115 if (bus->boardinfo.vendor == PCI_VENDOR_ID_ASUSTEK)
116 led->behaviour = B43_LED_ASSOC;
119 led->behaviour = B43_LED_RADIO_A;
122 led->behaviour = B43_LED_OFF;
129 int b43_leds_init(struct b43_wldev *dev)
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;
140 for (i = 0; i < B43_NR_LEDS; i++) {
141 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;
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]);
186 switch (led->behaviour) {
187 case B43_LED_INACTIVE:
194 case B43_LED_ACTIVITY:
197 case B43_LED_RADIO_ALL:
198 turn_on = phy->radio_on && b43_is_hw_radio_enabled(dev);
200 case B43_LED_RADIO_A:
201 turn_on = (phy->radio_on && b43_is_hw_radio_enabled(dev)
202 && phy->type == B43_PHYTYPE_A);
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));
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. */ )
215 case B43_LED_TRANSFER:
217 b43_led_blink_start(led, B43_LEDBLINK_MEDIUM);
219 b43_led_blink_stop(led, 0);
221 case B43_LED_APTRANSFER:
222 if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) {
224 interval = B43_LEDBLINK_FAST;
229 if (0 /*TODO: not assoc */ )
230 interval = B43_LEDBLINK_SLOW;
231 else if (transferring)
232 interval = B43_LEDBLINK_FAST;
237 b43_led_blink_start(led, interval);
239 b43_led_blink_stop(led, 0);
245 if (1 /*dev->softmac->associated */ )
248 #ifdef CONFIG_B43_DEBUG
249 case B43_LED_TEST_BLINKSLOW:
250 b43_led_blink_start(led, B43_LEDBLINK_SLOW);
252 case B43_LED_TEST_BLINKMEDIUM:
253 b43_led_blink_start(led, B43_LEDBLINK_MEDIUM);
255 case B43_LED_TEST_BLINKFAST:
256 b43_led_blink_start(led, B43_LEDBLINK_FAST);
258 #endif /* CONFIG_B43_DEBUG */
270 b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl);
271 spin_unlock_irqrestore(&dev->wl->leds_lock, flags);
274 void b43_leds_switch_all(struct b43_wldev *dev, int on)
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)
289 bit_on = led->activelow ? 0 : 1;
291 bit_on = led->activelow ? 1 : 0;
297 b43_write16(dev, B43_MMIO_GPIO_CONTROL, ledctl);
298 spin_unlock_irqrestore(&dev->wl->leds_lock, flags);