3 Broadcom B43 wireless driver
6 Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
7 Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it>
8 Copyright (c) 2005-2007 Michael Buesch <mb@bu3sch.de>
9 Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
10 Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
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.
29 #include "b43legacy.h"
33 static void b43legacy_led_turn_on(struct b43legacy_wldev *dev, u8 led_index,
36 struct b43legacy_wl *wl = dev->wl;
40 spin_lock_irqsave(&wl->leds_lock, flags);
41 ctl = b43legacy_read16(dev, B43legacy_MMIO_GPIO_CONTROL);
43 ctl &= ~(1 << led_index);
45 ctl |= (1 << led_index);
46 b43legacy_write16(dev, B43legacy_MMIO_GPIO_CONTROL, ctl);
47 spin_unlock_irqrestore(&wl->leds_lock, flags);
50 static void b43legacy_led_turn_off(struct b43legacy_wldev *dev, u8 led_index,
53 struct b43legacy_wl *wl = dev->wl;
57 spin_lock_irqsave(&wl->leds_lock, flags);
58 ctl = b43legacy_read16(dev, B43legacy_MMIO_GPIO_CONTROL);
60 ctl |= (1 << led_index);
62 ctl &= ~(1 << led_index);
63 b43legacy_write16(dev, B43legacy_MMIO_GPIO_CONTROL, ctl);
64 spin_unlock_irqrestore(&wl->leds_lock, flags);
67 /* Callback from the LED subsystem. */
68 static void b43legacy_led_brightness_set(struct led_classdev *led_dev,
69 enum led_brightness brightness)
71 struct b43legacy_led *led = container_of(led_dev, struct b43legacy_led,
73 struct b43legacy_wldev *dev = led->dev;
76 /* Checking the radio-enabled status here is slightly racy,
77 * but we want to avoid the locking overhead and we don't care
78 * whether the LED has the wrong state for a second. */
79 radio_enabled = (dev->phy.radio_on && dev->radio_hw_enable);
81 if (brightness == LED_OFF || !radio_enabled)
82 b43legacy_led_turn_off(dev, led->index, led->activelow);
84 b43legacy_led_turn_on(dev, led->index, led->activelow);
87 static int b43legacy_register_led(struct b43legacy_wldev *dev,
88 struct b43legacy_led *led,
89 const char *name, char *default_trigger,
90 u8 led_index, bool activelow)
94 b43legacy_led_turn_off(dev, led_index, activelow);
100 led->index = led_index;
101 led->activelow = activelow;
102 strncpy(led->name, name, sizeof(led->name));
104 led->led_dev.name = led->name;
105 led->led_dev.default_trigger = default_trigger;
106 led->led_dev.brightness_set = b43legacy_led_brightness_set;
108 err = led_classdev_register(dev->dev->dev, &led->led_dev);
110 b43legacywarn(dev->wl, "LEDs: Failed to register %s\n", name);
117 static void b43legacy_unregister_led(struct b43legacy_led *led)
121 led_classdev_unregister(&led->led_dev);
122 b43legacy_led_turn_off(led->dev, led->index, led->activelow);
126 static void b43legacy_map_led(struct b43legacy_wldev *dev,
128 enum b43legacy_led_behaviour behaviour,
131 struct ieee80211_hw *hw = dev->wl->hw;
132 char name[B43legacy_LED_MAX_NAME_LEN + 1];
134 /* Map the b43 specific LED behaviour value to the
135 * generic LED triggers. */
137 case B43legacy_LED_INACTIVE:
139 case B43legacy_LED_OFF:
140 b43legacy_led_turn_off(dev, led_index, activelow);
142 case B43legacy_LED_ON:
143 b43legacy_led_turn_on(dev, led_index, activelow);
145 case B43legacy_LED_ACTIVITY:
146 case B43legacy_LED_TRANSFER:
147 case B43legacy_LED_APTRANSFER:
148 snprintf(name, sizeof(name),
149 "b43legacy-%s:tx", wiphy_name(hw->wiphy));
150 b43legacy_register_led(dev, &dev->led_tx, name,
151 ieee80211_get_tx_led_name(hw),
152 led_index, activelow);
153 snprintf(name, sizeof(name),
154 "b43legacy-%s:rx", wiphy_name(hw->wiphy));
155 b43legacy_register_led(dev, &dev->led_rx, name,
156 ieee80211_get_rx_led_name(hw),
157 led_index, activelow);
159 case B43legacy_LED_RADIO_ALL:
160 case B43legacy_LED_RADIO_A:
161 case B43legacy_LED_RADIO_B:
162 case B43legacy_LED_MODE_BG:
163 snprintf(name, sizeof(name),
164 "b43legacy-%s:radio", wiphy_name(hw->wiphy));
165 b43legacy_register_led(dev, &dev->led_radio, name,
166 b43legacy_rfkill_led_name(dev),
167 led_index, activelow);
168 /* Sync the RF-kill LED state with the switch state. */
169 if (dev->radio_hw_enable)
170 b43legacy_led_turn_on(dev, led_index, activelow);
172 case B43legacy_LED_WEIRD:
173 case B43legacy_LED_ASSOC:
174 snprintf(name, sizeof(name),
175 "b43legacy-%s:assoc", wiphy_name(hw->wiphy));
176 b43legacy_register_led(dev, &dev->led_assoc, name,
177 ieee80211_get_assoc_led_name(hw),
178 led_index, activelow);
181 b43legacywarn(dev->wl, "LEDs: Unknown behaviour 0x%02X\n",
187 void b43legacy_leds_init(struct b43legacy_wldev *dev)
189 struct ssb_bus *bus = dev->dev->bus;
192 enum b43legacy_led_behaviour behaviour;
195 sprom[0] = bus->sprom.gpio0;
196 sprom[1] = bus->sprom.gpio1;
197 sprom[2] = bus->sprom.gpio2;
198 sprom[3] = bus->sprom.gpio3;
200 for (i = 0; i < 4; i++) {
201 if (sprom[i] == 0xFF) {
202 /* There is no LED information in the SPROM
203 * for this LED. Hardcode it here. */
207 behaviour = B43legacy_LED_ACTIVITY;
209 if (bus->boardinfo.vendor == PCI_VENDOR_ID_COMPAQ)
210 behaviour = B43legacy_LED_RADIO_ALL;
213 behaviour = B43legacy_LED_RADIO_B;
214 if (bus->boardinfo.vendor == PCI_VENDOR_ID_ASUSTEK)
215 behaviour = B43legacy_LED_ASSOC;
218 behaviour = B43legacy_LED_RADIO_A;
221 behaviour = B43legacy_LED_OFF;
224 B43legacy_WARN_ON(1);
228 behaviour = sprom[i] & B43legacy_LED_BEHAVIOUR;
229 activelow = !!(sprom[i] & B43legacy_LED_ACTIVELOW);
231 b43legacy_map_led(dev, i, behaviour, activelow);
235 void b43legacy_leds_exit(struct b43legacy_wldev *dev)
237 b43legacy_unregister_led(&dev->led_tx);
238 b43legacy_unregister_led(&dev->led_rx);
239 b43legacy_unregister_led(&dev->led_assoc);
240 b43legacy_unregister_led(&dev->led_radio);