return DEFAULT_RSSI;
}
-static int rt2x00link_antenna_get_rssi_history(struct rt2x00_dev *rt2x00dev,
- enum antenna antenna)
+static int rt2x00link_antenna_get_rssi_history(struct rt2x00_dev *rt2x00dev)
{
struct link_ant *ant = &rt2x00dev->link.ant;
- if (ant->rssi_history[antenna - ANTENNA_A])
- return ant->rssi_history[antenna - ANTENNA_A];
+ if (ant->rssi_history)
+ return ant->rssi_history;
return DEFAULT_RSSI;
}
-/* Small wrapper for rt2x00link_antenna_get_rssi_history() */
-#define rt2x00link_antenna_get_rssi_rx_history(__dev) \
- rt2x00link_antenna_get_rssi_history((__dev), \
- (__dev)->link.ant.active.rx)
-#define rt2x00link_antenna_get_rssi_tx_history(__dev) \
- rt2x00link_antenna_get_rssi_history((__dev), \
- (__dev)->link.ant.active.tx)
static void rt2x00link_antenna_update_rssi_history(struct rt2x00_dev *rt2x00dev,
- enum antenna antenna,
int rssi)
{
struct link_ant *ant = &rt2x00dev->link.ant;
- ant->rssi_history[ant->active.rx - ANTENNA_A] = rssi;
+ ant->rssi_history = rssi;
}
-/* Small wrapper for rt2x00link_antenna_get_rssi_history() */
-#define rt2x00link_antenna_update_rssi_rx_history(__dev, __rssi) \
- rt2x00link_antenna_update_rssi_history((__dev), \
- (__dev)->link.ant.active.rx, \
- (__rssi))
-#define rt2x00link_antenna_update_rssi_tx_history(__dev, __rssi) \
- rt2x00link_antenna_update_rssi_history((__dev), \
- (__dev)->link.ant.active.tx, \
- (__rssi))
static void rt2x00link_antenna_reset(struct rt2x00_dev *rt2x00dev)
{
{
struct link_ant *ant = &rt2x00dev->link.ant;
struct antenna_setup new_ant;
- int sample_a = rt2x00link_antenna_get_rssi_history(rt2x00dev, ANTENNA_A);
- int sample_b = rt2x00link_antenna_get_rssi_history(rt2x00dev, ANTENNA_B);
+ int other_antenna;
+
+ int sample_current = rt2x00link_antenna_get_link_rssi(rt2x00dev);
+ int sample_other = rt2x00link_antenna_get_rssi_history(rt2x00dev);
memcpy(&new_ant, &ant->active, sizeof(new_ant));
/*
* During the last period we have sampled the RSSI
- * from both antenna's. It now is time to determine
+ * from both antennas. It now is time to determine
* which antenna demonstrated the best performance.
* When we are already on the antenna with the best
- * performance, then there really is nothing for us
- * left to do.
+ * performance, just create a good starting point
+ * for the history and we are done.
*/
- if (sample_a == sample_b)
+ if (sample_current >= sample_other) {
+ rt2x00link_antenna_update_rssi_history(rt2x00dev,
+ sample_current);
return;
+ }
+
+ other_antenna = (ant->active.rx == ANTENNA_A) ? ANTENNA_B : ANTENNA_A;
if (ant->flags & ANTENNA_RX_DIVERSITY)
- new_ant.rx = (sample_a > sample_b) ? ANTENNA_A : ANTENNA_B;
+ new_ant.rx = other_antenna;
if (ant->flags & ANTENNA_TX_DIVERSITY)
- new_ant.tx = (sample_a > sample_b) ? ANTENNA_A : ANTENNA_B;
+ new_ant.tx = other_antenna;
- rt2x00lib_config_antenna(rt2x00dev, &new_ant);
+ rt2x00lib_config_antenna(rt2x00dev, new_ant);
}
static void rt2x00lib_antenna_diversity_eval(struct rt2x00_dev *rt2x00dev)
* after that update the history with the current value.
*/
rssi_curr = rt2x00link_antenna_get_link_rssi(rt2x00dev);
- rssi_old = rt2x00link_antenna_get_rssi_rx_history(rt2x00dev);
- rt2x00link_antenna_update_rssi_rx_history(rt2x00dev, rssi_curr);
+ rssi_old = rt2x00link_antenna_get_rssi_history(rt2x00dev);
+ rt2x00link_antenna_update_rssi_history(rt2x00dev, rssi_curr);
/*
* Legacy driver indicates that we should swap antenna's
if (ant->flags & ANTENNA_TX_DIVERSITY)
new_ant.tx = (new_ant.tx == ANTENNA_A) ? ANTENNA_B : ANTENNA_A;
- rt2x00lib_config_antenna(rt2x00dev, &new_ant);
+ rt2x00lib_config_antenna(rt2x00dev, new_ant);
}
-static void rt2x00lib_antenna_diversity(struct rt2x00_dev *rt2x00dev)
+static bool rt2x00lib_antenna_diversity(struct rt2x00_dev *rt2x00dev)
{
struct link_ant *ant = &rt2x00dev->link.ant;
+ unsigned int flags = ant->flags;
/*
* Determine if software diversity is enabled for
* Always perform this check since within the link
* tuner interval the configuration might have changed.
*/
- ant->flags &= ~ANTENNA_RX_DIVERSITY;
- ant->flags &= ~ANTENNA_TX_DIVERSITY;
+ flags &= ~ANTENNA_RX_DIVERSITY;
+ flags &= ~ANTENNA_TX_DIVERSITY;
if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
- ant->flags |= ANTENNA_RX_DIVERSITY;
+ flags |= ANTENNA_RX_DIVERSITY;
if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
- ant->flags |= ANTENNA_TX_DIVERSITY;
+ flags |= ANTENNA_TX_DIVERSITY;
if (!(ant->flags & ANTENNA_RX_DIVERSITY) &&
!(ant->flags & ANTENNA_TX_DIVERSITY)) {
ant->flags = 0;
- return;
+ return true;
}
+ /* Update flags */
+ ant->flags = flags;
+
/*
* If we have only sampled the data over the last period
* we should now harvest the data. Otherwise just evaluate
* the data. The latter should only be performed once
* every 2 seconds.
*/
- if (ant->flags & ANTENNA_MODE_SAMPLE)
+ if (ant->flags & ANTENNA_MODE_SAMPLE) {
rt2x00lib_antenna_diversity_sample(rt2x00dev);
- else if (rt2x00dev->link.count & 1)
+ return true;
+ } else if (rt2x00dev->link.count & 1) {
rt2x00lib_antenna_diversity_eval(rt2x00dev);
+ return true;
+ }
+
+ return false;
}
void rt2x00link_update_stats(struct rt2x00_dev *rt2x00dev,
rt2x00link_reset_tuner(rt2x00dev, false);
- queue_delayed_work(rt2x00dev->hw->workqueue,
- &link->work, LINK_TUNE_INTERVAL);
+ ieee80211_queue_delayed_work(rt2x00dev->hw,
+ &link->work, LINK_TUNE_INTERVAL);
}
void rt2x00link_stop_tuner(struct rt2x00_dev *rt2x00dev)
rt2x00leds_led_quality(rt2x00dev, link->avg_rssi);
/*
- * Evaluate antenna setup, make this the last step since this could
- * possibly reset some statistics.
- */
- rt2x00lib_antenna_diversity(rt2x00dev);
-
- /*
- * Reset the quality counters which recounted during each period.
+ * Evaluate antenna setup, make this the last step when
+ * rt2x00lib_antenna_diversity made changes the quality
+ * statistics will be reset.
*/
- rt2x00link_reset_qual(rt2x00dev);
+ if (rt2x00lib_antenna_diversity(rt2x00dev))
+ rt2x00link_reset_qual(rt2x00dev);
/*
* Increase tuner counter, and reschedule the next link tuner run.
*/
link->count++;
- queue_delayed_work(rt2x00dev->hw->workqueue,
- &link->work, LINK_TUNE_INTERVAL);
+ ieee80211_queue_delayed_work(rt2x00dev->hw,
+ &link->work, LINK_TUNE_INTERVAL);
}
void rt2x00link_register(struct rt2x00_dev *rt2x00dev)
git.openpandora.org / pandora-kernel.git / blobdiff