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 }