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16#include "b43.h"
17#include "leds.h"
18#include "rfkill.h"
19
20
21static void b43_led_turn_on(struct b43_wldev *dev, u8 led_index,
22 bool activelow)
23{
24 u16 ctl;
25
26 ctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL);
27 if (activelow)
28 ctl &= ~(1 << led_index);
29 else
30 ctl |= (1 << led_index);
31 b43_write16(dev, B43_MMIO_GPIO_CONTROL, ctl);
32}
33
34static void b43_led_turn_off(struct b43_wldev *dev, u8 led_index,
35 bool activelow)
36{
37 u16 ctl;
38
39 ctl = b43_read16(dev, B43_MMIO_GPIO_CONTROL);
40 if (activelow)
41 ctl |= (1 << led_index);
42 else
43 ctl &= ~(1 << led_index);
44 b43_write16(dev, B43_MMIO_GPIO_CONTROL, ctl);
45}
46
47static void b43_led_update(struct b43_wldev *dev,
48 struct b43_led *led)
49{
50 bool radio_enabled;
51 bool turn_on;
52
53 if (!led->wl)
54 return;
55
56 radio_enabled = (dev->phy.radio_on && dev->radio_hw_enable);
57
58
59
60
61 if (radio_enabled)
62 turn_on = atomic_read(&led->state) != LED_OFF;
63 else
64 turn_on = false;
65 if (turn_on == led->hw_state)
66 return;
67 led->hw_state = turn_on;
68
69 if (turn_on)
70 b43_led_turn_on(dev, led->index, led->activelow);
71 else
72 b43_led_turn_off(dev, led->index, led->activelow);
73}
74
75static void b43_leds_work(struct work_struct *work)
76{
77 struct b43_leds *leds = container_of(work, struct b43_leds, work);
78 struct b43_wl *wl = container_of(leds, struct b43_wl, leds);
79 struct b43_wldev *dev;
80
81 mutex_lock(&wl->mutex);
82 dev = wl->current_dev;
83 if (unlikely(!dev || b43_status(dev) < B43_STAT_STARTED))
84 goto out_unlock;
85
86 b43_led_update(dev, &wl->leds.led_tx);
87 b43_led_update(dev, &wl->leds.led_rx);
88 b43_led_update(dev, &wl->leds.led_radio);
89 b43_led_update(dev, &wl->leds.led_assoc);
90
91out_unlock:
92 mutex_unlock(&wl->mutex);
93}
94
95
96static void b43_led_brightness_set(struct led_classdev *led_dev,
97 enum led_brightness brightness)
98{
99 struct b43_led *led = container_of(led_dev, struct b43_led, led_dev);
100 struct b43_wl *wl = led->wl;
101
102 if (likely(!wl->leds.stop)) {
103 atomic_set(&led->state, brightness);
104 ieee80211_queue_work(wl->hw, &wl->leds.work);
105 }
106}
107
108static int b43_register_led(struct b43_wldev *dev, struct b43_led *led,
109 const char *name, const char *default_trigger,
110 u8 led_index, bool activelow)
111{
112 int err;
113
114 if (led->wl)
115 return -EEXIST;
116 if (!default_trigger)
117 return -EINVAL;
118 led->wl = dev->wl;
119 led->index = led_index;
120 led->activelow = activelow;
121 strlcpy(led->name, name, sizeof(led->name));
122 atomic_set(&led->state, 0);
123
124 led->led_dev.name = led->name;
125 led->led_dev.default_trigger = default_trigger;
126 led->led_dev.brightness_set = b43_led_brightness_set;
127
128 err = led_classdev_register(dev->dev->dev, &led->led_dev);
129 if (err) {
130 b43warn(dev->wl, "LEDs: Failed to register %s\n", name);
131 led->wl = NULL;
132 return err;
133 }
134
135 return 0;
136}
137
138static void b43_unregister_led(struct b43_led *led)
139{
140 if (!led->wl)
141 return;
142 led_classdev_unregister(&led->led_dev);
143 led->wl = NULL;
144}
145
146static void b43_map_led(struct b43_wldev *dev,
147 u8 led_index,
148 enum b43_led_behaviour behaviour,
149 bool activelow)
150{
151 struct ieee80211_hw *hw = dev->wl->hw;
152 char name[B43_LED_MAX_NAME_LEN + 1];
153
154
155
156 switch (behaviour) {
157 case B43_LED_INACTIVE:
158 case B43_LED_OFF:
159 case B43_LED_ON:
160 break;
161 case B43_LED_ACTIVITY:
162 case B43_LED_TRANSFER:
163 case B43_LED_APTRANSFER:
164 snprintf(name, sizeof(name),
165 "b43-%s::tx", wiphy_name(hw->wiphy));
166 b43_register_led(dev, &dev->wl->leds.led_tx, name,
167 ieee80211_get_tx_led_name(hw),
168 led_index, activelow);
169 snprintf(name, sizeof(name),
170 "b43-%s::rx", wiphy_name(hw->wiphy));
171 b43_register_led(dev, &dev->wl->leds.led_rx, name,
172 ieee80211_get_rx_led_name(hw),
173 led_index, activelow);
174 break;
175 case B43_LED_RADIO_ALL:
176 case B43_LED_RADIO_A:
177 case B43_LED_RADIO_B:
178 case B43_LED_MODE_BG:
179 snprintf(name, sizeof(name),
180 "b43-%s::radio", wiphy_name(hw->wiphy));
181 b43_register_led(dev, &dev->wl->leds.led_radio, name,
182 ieee80211_get_radio_led_name(hw),
183 led_index, activelow);
184 break;
185 case B43_LED_WEIRD:
186 case B43_LED_ASSOC:
187 snprintf(name, sizeof(name),
188 "b43-%s::assoc", wiphy_name(hw->wiphy));
189 b43_register_led(dev, &dev->wl->leds.led_assoc, name,
190 ieee80211_get_assoc_led_name(hw),
191 led_index, activelow);
192 break;
193 default:
194 b43warn(dev->wl, "LEDs: Unknown behaviour 0x%02X\n",
195 behaviour);
196 break;
197 }
198}
199
200static void b43_led_get_sprominfo(struct b43_wldev *dev,
201 unsigned int led_index,
202 enum b43_led_behaviour *behaviour,
203 bool *activelow)
204{
205 u8 sprom[4];
206
207 sprom[0] = dev->dev->bus_sprom->gpio0;
208 sprom[1] = dev->dev->bus_sprom->gpio1;
209 sprom[2] = dev->dev->bus_sprom->gpio2;
210 sprom[3] = dev->dev->bus_sprom->gpio3;
211
212 if ((sprom[0] & sprom[1] & sprom[2] & sprom[3]) == 0xff) {
213
214
215 *activelow = false;
216 switch (led_index) {
217 case 0:
218 *behaviour = B43_LED_ACTIVITY;
219 *activelow = true;
220 if (dev->dev->board_vendor == PCI_VENDOR_ID_COMPAQ)
221 *behaviour = B43_LED_RADIO_ALL;
222 break;
223 case 1:
224 *behaviour = B43_LED_RADIO_B;
225 if (dev->dev->board_vendor == PCI_VENDOR_ID_ASUSTEK)
226 *behaviour = B43_LED_ASSOC;
227 break;
228 case 2:
229 *behaviour = B43_LED_RADIO_A;
230 break;
231 case 3:
232 *behaviour = B43_LED_OFF;
233 break;
234 default:
235 *behaviour = B43_LED_OFF;
236 B43_WARN_ON(1);
237 return;
238 }
239 } else {
240
241 if (sprom[led_index] == 0xff)
242 *behaviour = B43_LED_OFF;
243 else
244 *behaviour = sprom[led_index] & B43_LED_BEHAVIOUR;
245 *activelow = !!(sprom[led_index] & B43_LED_ACTIVELOW);
246 }
247}
248
249void b43_leds_init(struct b43_wldev *dev)
250{
251 struct b43_led *led;
252 unsigned int i;
253 enum b43_led_behaviour behaviour;
254 bool activelow;
255
256
257 led = &dev->wl->leds.led_radio;
258 if (led->wl) {
259 if (dev->phy.radio_on && b43_is_hw_radio_enabled(dev)) {
260 b43_led_turn_on(dev, led->index, led->activelow);
261 led->hw_state = true;
262 atomic_set(&led->state, 1);
263 } else {
264 b43_led_turn_off(dev, led->index, led->activelow);
265 led->hw_state = false;
266 atomic_set(&led->state, 0);
267 }
268 }
269
270
271 led = &dev->wl->leds.led_tx;
272 if (led->wl) {
273 b43_led_turn_off(dev, led->index, led->activelow);
274 led->hw_state = false;
275 atomic_set(&led->state, 0);
276 }
277 led = &dev->wl->leds.led_rx;
278 if (led->wl) {
279 b43_led_turn_off(dev, led->index, led->activelow);
280 led->hw_state = false;
281 atomic_set(&led->state, 0);
282 }
283 led = &dev->wl->leds.led_assoc;
284 if (led->wl) {
285 b43_led_turn_off(dev, led->index, led->activelow);
286 led->hw_state = false;
287 atomic_set(&led->state, 0);
288 }
289
290
291 for (i = 0; i < B43_MAX_NR_LEDS; i++) {
292 b43_led_get_sprominfo(dev, i, &behaviour, &activelow);
293 switch (behaviour) {
294 case B43_LED_OFF:
295 b43_led_turn_off(dev, i, activelow);
296 break;
297 case B43_LED_ON:
298 b43_led_turn_on(dev, i, activelow);
299 break;
300 default:
301
302 break;
303 }
304 }
305
306 dev->wl->leds.stop = 0;
307}
308
309void b43_leds_exit(struct b43_wldev *dev)
310{
311 struct b43_leds *leds = &dev->wl->leds;
312
313 b43_led_turn_off(dev, leds->led_tx.index, leds->led_tx.activelow);
314 b43_led_turn_off(dev, leds->led_rx.index, leds->led_rx.activelow);
315 b43_led_turn_off(dev, leds->led_assoc.index, leds->led_assoc.activelow);
316 b43_led_turn_off(dev, leds->led_radio.index, leds->led_radio.activelow);
317}
318
319void b43_leds_stop(struct b43_wldev *dev)
320{
321 struct b43_leds *leds = &dev->wl->leds;
322
323 leds->stop = 1;
324 cancel_work_sync(&leds->work);
325}
326
327void b43_leds_register(struct b43_wldev *dev)
328{
329 unsigned int i;
330 enum b43_led_behaviour behaviour;
331 bool activelow;
332
333 INIT_WORK(&dev->wl->leds.work, b43_leds_work);
334
335
336 for (i = 0; i < B43_MAX_NR_LEDS; i++) {
337 b43_led_get_sprominfo(dev, i, &behaviour, &activelow);
338 b43_map_led(dev, i, behaviour, activelow);
339 }
340}
341
342void b43_leds_unregister(struct b43_wl *wl)
343{
344 struct b43_leds *leds = &wl->leds;
345
346 b43_unregister_led(&leds->led_tx);
347 b43_unregister_led(&leds->led_rx);
348 b43_unregister_led(&leds->led_assoc);
349 b43_unregister_led(&leds->led_radio);
350}
351
