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Diffstat (limited to 'net/mac80211/led.c')
-rw-r--r--net/mac80211/led.c186
1 files changed, 166 insertions, 20 deletions
diff --git a/net/mac80211/led.c b/net/mac80211/led.c
index 063aad944246..14590332c81c 100644
--- a/net/mac80211/led.c
+++ b/net/mac80211/led.c
@@ -54,12 +54,22 @@ void ieee80211_led_radio(struct ieee80211_local *local, bool enabled)
led_trigger_event(local->radio_led, LED_OFF);
}
+void ieee80211_led_names(struct ieee80211_local *local)
+{
+ snprintf(local->rx_led_name, sizeof(local->rx_led_name),
+ "%srx", wiphy_name(local->hw.wiphy));
+ snprintf(local->tx_led_name, sizeof(local->tx_led_name),
+ "%stx", wiphy_name(local->hw.wiphy));
+ snprintf(local->assoc_led_name, sizeof(local->assoc_led_name),
+ "%sassoc", wiphy_name(local->hw.wiphy));
+ snprintf(local->radio_led_name, sizeof(local->radio_led_name),
+ "%sradio", wiphy_name(local->hw.wiphy));
+}
+
void ieee80211_led_init(struct ieee80211_local *local)
{
local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
if (local->rx_led) {
- snprintf(local->rx_led_name, sizeof(local->rx_led_name),
- "%srx", wiphy_name(local->hw.wiphy));
local->rx_led->name = local->rx_led_name;
if (led_trigger_register(local->rx_led)) {
kfree(local->rx_led);
@@ -69,8 +79,6 @@ void ieee80211_led_init(struct ieee80211_local *local)
local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
if (local->tx_led) {
- snprintf(local->tx_led_name, sizeof(local->tx_led_name),
- "%stx", wiphy_name(local->hw.wiphy));
local->tx_led->name = local->tx_led_name;
if (led_trigger_register(local->tx_led)) {
kfree(local->tx_led);
@@ -80,8 +88,6 @@ void ieee80211_led_init(struct ieee80211_local *local)
local->assoc_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
if (local->assoc_led) {
- snprintf(local->assoc_led_name, sizeof(local->assoc_led_name),
- "%sassoc", wiphy_name(local->hw.wiphy));
local->assoc_led->name = local->assoc_led_name;
if (led_trigger_register(local->assoc_led)) {
kfree(local->assoc_led);
@@ -91,14 +97,19 @@ void ieee80211_led_init(struct ieee80211_local *local)
local->radio_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
if (local->radio_led) {
- snprintf(local->radio_led_name, sizeof(local->radio_led_name),
- "%sradio", wiphy_name(local->hw.wiphy));
local->radio_led->name = local->radio_led_name;
if (led_trigger_register(local->radio_led)) {
kfree(local->radio_led);
local->radio_led = NULL;
}
}
+
+ if (local->tpt_led_trigger) {
+ if (led_trigger_register(&local->tpt_led_trigger->trig)) {
+ kfree(local->tpt_led_trigger);
+ local->tpt_led_trigger = NULL;
+ }
+ }
}
void ieee80211_led_exit(struct ieee80211_local *local)
@@ -119,15 +130,18 @@ void ieee80211_led_exit(struct ieee80211_local *local)
led_trigger_unregister(local->rx_led);
kfree(local->rx_led);
}
+
+ if (local->tpt_led_trigger) {
+ led_trigger_unregister(&local->tpt_led_trigger->trig);
+ kfree(local->tpt_led_trigger);
+ }
}
char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw)
{
struct ieee80211_local *local = hw_to_local(hw);
- if (local->radio_led)
- return local->radio_led_name;
- return NULL;
+ return local->radio_led_name;
}
EXPORT_SYMBOL(__ieee80211_get_radio_led_name);
@@ -135,9 +149,7 @@ char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw)
{
struct ieee80211_local *local = hw_to_local(hw);
- if (local->assoc_led)
- return local->assoc_led_name;
- return NULL;
+ return local->assoc_led_name;
}
EXPORT_SYMBOL(__ieee80211_get_assoc_led_name);
@@ -145,9 +157,7 @@ char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
{
struct ieee80211_local *local = hw_to_local(hw);
- if (local->tx_led)
- return local->tx_led_name;
- return NULL;
+ return local->tx_led_name;
}
EXPORT_SYMBOL(__ieee80211_get_tx_led_name);
@@ -155,8 +165,144 @@ char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
{
struct ieee80211_local *local = hw_to_local(hw);
- if (local->rx_led)
- return local->rx_led_name;
- return NULL;
+ return local->rx_led_name;
}
EXPORT_SYMBOL(__ieee80211_get_rx_led_name);
+
+static unsigned long tpt_trig_traffic(struct ieee80211_local *local,
+ struct tpt_led_trigger *tpt_trig)
+{
+ unsigned long traffic, delta;
+
+ traffic = tpt_trig->tx_bytes + tpt_trig->rx_bytes;
+
+ delta = traffic - tpt_trig->prev_traffic;
+ tpt_trig->prev_traffic = traffic;
+ return DIV_ROUND_UP(delta, 1024 / 8);
+}
+
+static void tpt_trig_timer(unsigned long data)
+{
+ struct ieee80211_local *local = (void *)data;
+ struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
+ struct led_classdev *led_cdev;
+ unsigned long on, off, tpt;
+ int i;
+
+ if (!tpt_trig->running)
+ return;
+
+ mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ));
+
+ tpt = tpt_trig_traffic(local, tpt_trig);
+
+ /* default to just solid on */
+ on = 1;
+ off = 0;
+
+ for (i = tpt_trig->blink_table_len - 1; i >= 0; i--) {
+ if (tpt_trig->blink_table[i].throughput < 0 ||
+ tpt > tpt_trig->blink_table[i].throughput) {
+ off = tpt_trig->blink_table[i].blink_time / 2;
+ on = tpt_trig->blink_table[i].blink_time - off;
+ break;
+ }
+ }
+
+ read_lock(&tpt_trig->trig.leddev_list_lock);
+ list_for_each_entry(led_cdev, &tpt_trig->trig.led_cdevs, trig_list)
+ led_blink_set(led_cdev, &on, &off);
+ read_unlock(&tpt_trig->trig.leddev_list_lock);
+}
+
+char *__ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw,
+ unsigned int flags,
+ const struct ieee80211_tpt_blink *blink_table,
+ unsigned int blink_table_len)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct tpt_led_trigger *tpt_trig;
+
+ if (WARN_ON(local->tpt_led_trigger))
+ return NULL;
+
+ tpt_trig = kzalloc(sizeof(struct tpt_led_trigger), GFP_KERNEL);
+ if (!tpt_trig)
+ return NULL;
+
+ snprintf(tpt_trig->name, sizeof(tpt_trig->name),
+ "%stpt", wiphy_name(local->hw.wiphy));
+
+ tpt_trig->trig.name = tpt_trig->name;
+
+ tpt_trig->blink_table = blink_table;
+ tpt_trig->blink_table_len = blink_table_len;
+ tpt_trig->want = flags;
+
+ setup_timer(&tpt_trig->timer, tpt_trig_timer, (unsigned long)local);
+
+ local->tpt_led_trigger = tpt_trig;
+
+ return tpt_trig->name;
+}
+EXPORT_SYMBOL(__ieee80211_create_tpt_led_trigger);
+
+static void ieee80211_start_tpt_led_trig(struct ieee80211_local *local)
+{
+ struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
+
+ if (tpt_trig->running)
+ return;
+
+ /* reset traffic */
+ tpt_trig_traffic(local, tpt_trig);
+ tpt_trig->running = true;
+
+ tpt_trig_timer((unsigned long)local);
+ mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ));
+}
+
+static void ieee80211_stop_tpt_led_trig(struct ieee80211_local *local)
+{
+ struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
+ struct led_classdev *led_cdev;
+
+ if (!tpt_trig->running)
+ return;
+
+ tpt_trig->running = false;
+ del_timer_sync(&tpt_trig->timer);
+
+ read_lock(&tpt_trig->trig.leddev_list_lock);
+ list_for_each_entry(led_cdev, &tpt_trig->trig.led_cdevs, trig_list)
+ led_brightness_set(led_cdev, LED_OFF);
+ read_unlock(&tpt_trig->trig.leddev_list_lock);
+}
+
+void ieee80211_mod_tpt_led_trig(struct ieee80211_local *local,
+ unsigned int types_on, unsigned int types_off)
+{
+ struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
+ bool allowed;
+
+ WARN_ON(types_on & types_off);
+
+ if (!tpt_trig)
+ return;
+
+ tpt_trig->active &= ~types_off;
+ tpt_trig->active |= types_on;
+
+ /*
+ * Regardless of wanted state, we shouldn't blink when
+ * the radio is disabled -- this can happen due to some
+ * code ordering issues with __ieee80211_recalc_idle()
+ * being called before the radio is started.
+ */
+ allowed = tpt_trig->active & IEEE80211_TPT_LEDTRIG_FL_RADIO;
+
+ if (!allowed || !(tpt_trig->active & tpt_trig->want))
+ ieee80211_stop_tpt_led_trig(local);
+ else
+ ieee80211_start_tpt_led_trig(local);
+}