Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2006, Johannes Berg <johannes@sipsolutions.net> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 as |
| 6 | * published by the Free Software Foundation. |
| 7 | */ |
| 8 | |
| 9 | /* just for IFNAMSIZ */ |
| 10 | #include <linux/if.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 11 | #include <linux/slab.h> |
Johannes Berg | 2c8dccc | 2008-04-08 15:14:40 -0400 | [diff] [blame] | 12 | #include "led.h" |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 13 | |
| 14 | void ieee80211_led_rx(struct ieee80211_local *local) |
| 15 | { |
| 16 | if (unlikely(!local->rx_led)) |
| 17 | return; |
| 18 | if (local->rx_led_counter++ % 2 == 0) |
| 19 | led_trigger_event(local->rx_led, LED_OFF); |
| 20 | else |
| 21 | led_trigger_event(local->rx_led, LED_FULL); |
| 22 | } |
| 23 | |
| 24 | /* q is 1 if a packet was enqueued, 0 if it has been transmitted */ |
| 25 | void ieee80211_led_tx(struct ieee80211_local *local, int q) |
| 26 | { |
| 27 | if (unlikely(!local->tx_led)) |
| 28 | return; |
| 29 | /* not sure how this is supposed to work ... */ |
| 30 | local->tx_led_counter += 2*q-1; |
| 31 | if (local->tx_led_counter % 2 == 0) |
| 32 | led_trigger_event(local->tx_led, LED_OFF); |
| 33 | else |
| 34 | led_trigger_event(local->tx_led, LED_FULL); |
| 35 | } |
| 36 | |
Michael Buesch | 47f0c50 | 2007-09-27 15:10:44 +0200 | [diff] [blame] | 37 | void ieee80211_led_assoc(struct ieee80211_local *local, bool associated) |
| 38 | { |
| 39 | if (unlikely(!local->assoc_led)) |
| 40 | return; |
| 41 | if (associated) |
| 42 | led_trigger_event(local->assoc_led, LED_FULL); |
| 43 | else |
| 44 | led_trigger_event(local->assoc_led, LED_OFF); |
| 45 | } |
| 46 | |
Ivo van Doorn | cdcb006 | 2008-01-07 19:45:24 +0100 | [diff] [blame] | 47 | void ieee80211_led_radio(struct ieee80211_local *local, bool enabled) |
| 48 | { |
| 49 | if (unlikely(!local->radio_led)) |
| 50 | return; |
| 51 | if (enabled) |
| 52 | led_trigger_event(local->radio_led, LED_FULL); |
| 53 | else |
| 54 | led_trigger_event(local->radio_led, LED_OFF); |
| 55 | } |
| 56 | |
Johannes Berg | fe67c91 | 2010-11-27 20:02:59 +0100 | [diff] [blame] | 57 | void ieee80211_led_names(struct ieee80211_local *local) |
| 58 | { |
| 59 | snprintf(local->rx_led_name, sizeof(local->rx_led_name), |
| 60 | "%srx", wiphy_name(local->hw.wiphy)); |
| 61 | snprintf(local->tx_led_name, sizeof(local->tx_led_name), |
| 62 | "%stx", wiphy_name(local->hw.wiphy)); |
| 63 | snprintf(local->assoc_led_name, sizeof(local->assoc_led_name), |
| 64 | "%sassoc", wiphy_name(local->hw.wiphy)); |
| 65 | snprintf(local->radio_led_name, sizeof(local->radio_led_name), |
| 66 | "%sradio", wiphy_name(local->hw.wiphy)); |
| 67 | } |
| 68 | |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 69 | void ieee80211_led_init(struct ieee80211_local *local) |
| 70 | { |
| 71 | local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); |
Michael Buesch | 47f0c50 | 2007-09-27 15:10:44 +0200 | [diff] [blame] | 72 | if (local->rx_led) { |
Michael Buesch | 47f0c50 | 2007-09-27 15:10:44 +0200 | [diff] [blame] | 73 | local->rx_led->name = local->rx_led_name; |
| 74 | if (led_trigger_register(local->rx_led)) { |
| 75 | kfree(local->rx_led); |
| 76 | local->rx_led = NULL; |
| 77 | } |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 78 | } |
| 79 | |
| 80 | local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); |
Michael Buesch | 47f0c50 | 2007-09-27 15:10:44 +0200 | [diff] [blame] | 81 | if (local->tx_led) { |
Michael Buesch | 47f0c50 | 2007-09-27 15:10:44 +0200 | [diff] [blame] | 82 | local->tx_led->name = local->tx_led_name; |
| 83 | if (led_trigger_register(local->tx_led)) { |
| 84 | kfree(local->tx_led); |
| 85 | local->tx_led = NULL; |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | local->assoc_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); |
| 90 | if (local->assoc_led) { |
Michael Buesch | 47f0c50 | 2007-09-27 15:10:44 +0200 | [diff] [blame] | 91 | local->assoc_led->name = local->assoc_led_name; |
| 92 | if (led_trigger_register(local->assoc_led)) { |
| 93 | kfree(local->assoc_led); |
| 94 | local->assoc_led = NULL; |
| 95 | } |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 96 | } |
Ivo van Doorn | cdcb006 | 2008-01-07 19:45:24 +0100 | [diff] [blame] | 97 | |
| 98 | local->radio_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); |
| 99 | if (local->radio_led) { |
Ivo van Doorn | cdcb006 | 2008-01-07 19:45:24 +0100 | [diff] [blame] | 100 | local->radio_led->name = local->radio_led_name; |
| 101 | if (led_trigger_register(local->radio_led)) { |
| 102 | kfree(local->radio_led); |
| 103 | local->radio_led = NULL; |
| 104 | } |
| 105 | } |
Johannes Berg | e1e5406 | 2010-11-30 08:58:45 +0100 | [diff] [blame] | 106 | |
| 107 | if (local->tpt_led_trigger) { |
| 108 | if (led_trigger_register(&local->tpt_led_trigger->trig)) { |
| 109 | kfree(local->tpt_led_trigger); |
| 110 | local->tpt_led_trigger = NULL; |
| 111 | } |
| 112 | } |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 113 | } |
| 114 | |
| 115 | void ieee80211_led_exit(struct ieee80211_local *local) |
| 116 | { |
Ivo van Doorn | cdcb006 | 2008-01-07 19:45:24 +0100 | [diff] [blame] | 117 | if (local->radio_led) { |
| 118 | led_trigger_unregister(local->radio_led); |
| 119 | kfree(local->radio_led); |
| 120 | } |
Michael Buesch | 47f0c50 | 2007-09-27 15:10:44 +0200 | [diff] [blame] | 121 | if (local->assoc_led) { |
| 122 | led_trigger_unregister(local->assoc_led); |
| 123 | kfree(local->assoc_led); |
| 124 | } |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 125 | if (local->tx_led) { |
| 126 | led_trigger_unregister(local->tx_led); |
| 127 | kfree(local->tx_led); |
| 128 | } |
| 129 | if (local->rx_led) { |
| 130 | led_trigger_unregister(local->rx_led); |
| 131 | kfree(local->rx_led); |
| 132 | } |
Johannes Berg | e1e5406 | 2010-11-30 08:58:45 +0100 | [diff] [blame] | 133 | |
| 134 | if (local->tpt_led_trigger) { |
| 135 | led_trigger_unregister(&local->tpt_led_trigger->trig); |
| 136 | kfree(local->tpt_led_trigger); |
| 137 | } |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 138 | } |
| 139 | |
Ivo van Doorn | cdcb006 | 2008-01-07 19:45:24 +0100 | [diff] [blame] | 140 | char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw) |
| 141 | { |
| 142 | struct ieee80211_local *local = hw_to_local(hw); |
| 143 | |
Johannes Berg | fe67c91 | 2010-11-27 20:02:59 +0100 | [diff] [blame] | 144 | return local->radio_led_name; |
Ivo van Doorn | cdcb006 | 2008-01-07 19:45:24 +0100 | [diff] [blame] | 145 | } |
| 146 | EXPORT_SYMBOL(__ieee80211_get_radio_led_name); |
| 147 | |
Michael Buesch | 47f0c50 | 2007-09-27 15:10:44 +0200 | [diff] [blame] | 148 | char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw) |
| 149 | { |
| 150 | struct ieee80211_local *local = hw_to_local(hw); |
| 151 | |
Johannes Berg | fe67c91 | 2010-11-27 20:02:59 +0100 | [diff] [blame] | 152 | return local->assoc_led_name; |
Michael Buesch | 47f0c50 | 2007-09-27 15:10:44 +0200 | [diff] [blame] | 153 | } |
| 154 | EXPORT_SYMBOL(__ieee80211_get_assoc_led_name); |
| 155 | |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 156 | char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw) |
| 157 | { |
| 158 | struct ieee80211_local *local = hw_to_local(hw); |
| 159 | |
Johannes Berg | fe67c91 | 2010-11-27 20:02:59 +0100 | [diff] [blame] | 160 | return local->tx_led_name; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 161 | } |
| 162 | EXPORT_SYMBOL(__ieee80211_get_tx_led_name); |
| 163 | |
| 164 | char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw) |
| 165 | { |
| 166 | struct ieee80211_local *local = hw_to_local(hw); |
| 167 | |
Johannes Berg | fe67c91 | 2010-11-27 20:02:59 +0100 | [diff] [blame] | 168 | return local->rx_led_name; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 169 | } |
| 170 | EXPORT_SYMBOL(__ieee80211_get_rx_led_name); |
Johannes Berg | e1e5406 | 2010-11-30 08:58:45 +0100 | [diff] [blame] | 171 | |
| 172 | static unsigned long tpt_trig_traffic(struct ieee80211_local *local, |
| 173 | struct tpt_led_trigger *tpt_trig) |
| 174 | { |
| 175 | unsigned long traffic, delta; |
| 176 | |
| 177 | traffic = tpt_trig->tx_bytes + tpt_trig->rx_bytes; |
| 178 | |
| 179 | delta = traffic - tpt_trig->prev_traffic; |
| 180 | tpt_trig->prev_traffic = traffic; |
| 181 | return DIV_ROUND_UP(delta, 1024 / 8); |
| 182 | } |
| 183 | |
| 184 | static void tpt_trig_timer(unsigned long data) |
| 185 | { |
| 186 | struct ieee80211_local *local = (void *)data; |
| 187 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; |
| 188 | struct led_classdev *led_cdev; |
| 189 | unsigned long on, off, tpt; |
| 190 | int i; |
| 191 | |
| 192 | if (!tpt_trig->running) |
| 193 | return; |
| 194 | |
| 195 | mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ)); |
| 196 | |
| 197 | tpt = tpt_trig_traffic(local, tpt_trig); |
| 198 | |
| 199 | /* default to just solid on */ |
| 200 | on = 1; |
| 201 | off = 0; |
| 202 | |
| 203 | for (i = tpt_trig->blink_table_len - 1; i >= 0; i--) { |
| 204 | if (tpt_trig->blink_table[i].throughput < 0 || |
| 205 | tpt > tpt_trig->blink_table[i].throughput) { |
| 206 | off = tpt_trig->blink_table[i].blink_time / 2; |
| 207 | on = tpt_trig->blink_table[i].blink_time - off; |
| 208 | break; |
| 209 | } |
| 210 | } |
| 211 | |
| 212 | read_lock(&tpt_trig->trig.leddev_list_lock); |
| 213 | list_for_each_entry(led_cdev, &tpt_trig->trig.led_cdevs, trig_list) |
| 214 | led_blink_set(led_cdev, &on, &off); |
| 215 | read_unlock(&tpt_trig->trig.leddev_list_lock); |
| 216 | } |
| 217 | |
Johannes Berg | 06778b1 | 2010-12-22 10:15:52 +0100 | [diff] [blame^] | 218 | char *__ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw, |
| 219 | unsigned int flags, |
Johannes Berg | e1e5406 | 2010-11-30 08:58:45 +0100 | [diff] [blame] | 220 | const struct ieee80211_tpt_blink *blink_table, |
| 221 | unsigned int blink_table_len) |
| 222 | { |
| 223 | struct ieee80211_local *local = hw_to_local(hw); |
| 224 | struct tpt_led_trigger *tpt_trig; |
| 225 | |
| 226 | if (WARN_ON(local->tpt_led_trigger)) |
| 227 | return NULL; |
| 228 | |
| 229 | tpt_trig = kzalloc(sizeof(struct tpt_led_trigger), GFP_KERNEL); |
| 230 | if (!tpt_trig) |
| 231 | return NULL; |
| 232 | |
| 233 | snprintf(tpt_trig->name, sizeof(tpt_trig->name), |
| 234 | "%stpt", wiphy_name(local->hw.wiphy)); |
| 235 | |
| 236 | tpt_trig->trig.name = tpt_trig->name; |
| 237 | |
| 238 | tpt_trig->blink_table = blink_table; |
| 239 | tpt_trig->blink_table_len = blink_table_len; |
Johannes Berg | 67408c8 | 2010-11-30 08:59:23 +0100 | [diff] [blame] | 240 | tpt_trig->want = flags; |
Johannes Berg | e1e5406 | 2010-11-30 08:58:45 +0100 | [diff] [blame] | 241 | |
| 242 | setup_timer(&tpt_trig->timer, tpt_trig_timer, (unsigned long)local); |
| 243 | |
| 244 | local->tpt_led_trigger = tpt_trig; |
| 245 | |
| 246 | return tpt_trig->name; |
| 247 | } |
| 248 | EXPORT_SYMBOL(__ieee80211_create_tpt_led_trigger); |
| 249 | |
Johannes Berg | 67408c8 | 2010-11-30 08:59:23 +0100 | [diff] [blame] | 250 | static void ieee80211_start_tpt_led_trig(struct ieee80211_local *local) |
Johannes Berg | e1e5406 | 2010-11-30 08:58:45 +0100 | [diff] [blame] | 251 | { |
| 252 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; |
| 253 | |
Johannes Berg | 67408c8 | 2010-11-30 08:59:23 +0100 | [diff] [blame] | 254 | if (tpt_trig->running) |
Johannes Berg | e1e5406 | 2010-11-30 08:58:45 +0100 | [diff] [blame] | 255 | return; |
| 256 | |
| 257 | /* reset traffic */ |
| 258 | tpt_trig_traffic(local, tpt_trig); |
| 259 | tpt_trig->running = true; |
| 260 | |
| 261 | tpt_trig_timer((unsigned long)local); |
| 262 | mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ)); |
| 263 | } |
| 264 | |
Johannes Berg | 67408c8 | 2010-11-30 08:59:23 +0100 | [diff] [blame] | 265 | static void ieee80211_stop_tpt_led_trig(struct ieee80211_local *local) |
Johannes Berg | e1e5406 | 2010-11-30 08:58:45 +0100 | [diff] [blame] | 266 | { |
| 267 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; |
| 268 | struct led_classdev *led_cdev; |
| 269 | |
Johannes Berg | 67408c8 | 2010-11-30 08:59:23 +0100 | [diff] [blame] | 270 | if (!tpt_trig->running) |
Johannes Berg | e1e5406 | 2010-11-30 08:58:45 +0100 | [diff] [blame] | 271 | return; |
| 272 | |
| 273 | tpt_trig->running = false; |
| 274 | del_timer_sync(&tpt_trig->timer); |
| 275 | |
| 276 | read_lock(&tpt_trig->trig.leddev_list_lock); |
| 277 | list_for_each_entry(led_cdev, &tpt_trig->trig.led_cdevs, trig_list) |
| 278 | led_brightness_set(led_cdev, LED_OFF); |
| 279 | read_unlock(&tpt_trig->trig.leddev_list_lock); |
| 280 | } |
Johannes Berg | 67408c8 | 2010-11-30 08:59:23 +0100 | [diff] [blame] | 281 | |
| 282 | void ieee80211_mod_tpt_led_trig(struct ieee80211_local *local, |
| 283 | unsigned int types_on, unsigned int types_off) |
| 284 | { |
| 285 | struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger; |
| 286 | bool allowed; |
| 287 | |
| 288 | WARN_ON(types_on & types_off); |
| 289 | |
| 290 | if (!tpt_trig) |
| 291 | return; |
| 292 | |
| 293 | tpt_trig->active &= ~types_off; |
| 294 | tpt_trig->active |= types_on; |
| 295 | |
| 296 | /* |
| 297 | * Regardless of wanted state, we shouldn't blink when |
| 298 | * the radio is disabled -- this can happen due to some |
| 299 | * code ordering issues with __ieee80211_recalc_idle() |
| 300 | * being called before the radio is started. |
| 301 | */ |
| 302 | allowed = tpt_trig->active & IEEE80211_TPT_LEDTRIG_FL_RADIO; |
| 303 | |
| 304 | if (!allowed || !(tpt_trig->active & tpt_trig->want)) |
| 305 | ieee80211_stop_tpt_led_trig(local); |
| 306 | else |
| 307 | ieee80211_start_tpt_led_trig(local); |
| 308 | } |