static void rt2x00link_tuner(struct work_struct *work)
{
struct rt2x00_dev *rt2x00dev =
container_of(work, struct rt2x00_dev, link.work.work);
struct link *link = &rt2x00dev->link;
struct link_qual *qual = &rt2x00dev->link.qual;
/*
* When the radio is shutting down we should
* immediately cease all link tuning.
*/
if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
return;
/*
* Update statistics.
*/
rt2x00dev->ops->lib->link_stats(rt2x00dev, qual);
rt2x00dev->low_level_stats.dot11FCSErrorCount += qual->rx_failed;
/*
* Update quality RSSI for link tuning,
* when we have received some frames and we managed to
* collect the RSSI data we could use this. Otherwise we
* must fallback to the default RSSI value.
*/
if (!link->avg_rssi.avg || !qual->rx_success)
qual->rssi = DEFAULT_RSSI;
else
qual->rssi = link->avg_rssi.avg;
/*
* Only perform the link tuning when Link tuning
* has been enabled (This could have been disabled from the EEPROM).
*/
if (!test_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags))
rt2x00dev->ops->lib->link_tuner(rt2x00dev, qual, link->count);
/*
* Send a signal to the led to update the led signal strength.
*/
rt2x00leds_led_quality(rt2x00dev, qual->rssi);
/*
* Evaluate antenna setup, make this the last step when
* rt2x00lib_antenna_diversity made changes the quality
* statistics will be reset.
*/
if (rt2x00lib_antenna_diversity(rt2x00dev))
rt2x00link_reset_qual(rt2x00dev);
/*
* Increase tuner counter, and reschedule the next link tuner run.
*/
link->count++;
if (test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
ieee80211_queue_delayed_work(rt2x00dev->hw,
&link->work, LINK_TUNE_INTERVAL);
}
static void rt2x00link_tuner(void *r)
{
struct rt2x00_dev *rt2x00dev = r;
struct link *link = &rt2x00dev->link;
struct link_qual *qual = &rt2x00dev->link.qual;
/*
* When the radio is shutting down we should
* immediately cease all link tuning ...
*/
if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) {
/* ... but in RHEL5 we have no working cancel_work_sync,
so we are rescheduling here to avoid infinite loop
in cancel_rearming_delayed_work() */
ieee80211_queue_delayed_work(rt2x00dev->hw, &link->work, LINK_TUNE_INTERVAL);
return;
}
/*
* Update statistics.
*/
rt2x00dev->ops->lib->link_stats(rt2x00dev, qual);
rt2x00dev->low_level_stats.dot11FCSErrorCount += qual->rx_failed;
/*
* Update quality RSSI for link tuning,
* when we have received some frames and we managed to
* collect the RSSI data we could use this. Otherwise we
* must fallback to the default RSSI value.
*/
if (!link->avg_rssi.avg || !qual->rx_success)
qual->rssi = DEFAULT_RSSI;
else
qual->rssi = link->avg_rssi.avg;
/*
* Only perform the link tuning when Link tuning
* has been enabled (This could have been disabled from the EEPROM).
*/
if (!test_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags))
rt2x00dev->ops->lib->link_tuner(rt2x00dev, qual, link->count);
/*
* Precalculate a portion of the link signal which is
* in based on the tx/rx success/failure counters.
*/
rt2x00link_precalculate_signal(rt2x00dev);
/*
* Send a signal to the led to update the led signal strength.
*/
rt2x00leds_led_quality(rt2x00dev, qual->rssi);
/*
* Evaluate antenna setup, make this the last step when
* rt2x00lib_antenna_diversity made changes the quality
* statistics will be reset.
*/
if (rt2x00lib_antenna_diversity(rt2x00dev))
rt2x00link_reset_qual(rt2x00dev);
/*
* Increase tuner counter, and reschedule the next link tuner run.
*/
link->count++;
#if 0 /* Not in RHEL5... */
if (test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
ieee80211_queue_delayed_work(rt2x00dev->hw,
&link->work, LINK_TUNE_INTERVAL);
#else
/* Queue delayed work no matter what, otherwise
cancel_rearming_delayed_work() may hang and live lock the system */
ieee80211_queue_delayed_work(rt2x00dev->hw,
&link->work, LINK_TUNE_INTERVAL);
#endif
}