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rt2x00: Fix SW antenna diversity

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Software antenna tuning is broken because of an function
ordering problem during rt2x00link_tuner().

rt2x00link_precalculate_signal()
rt2x00leds_led_quality()
rt2x00lib_antenna_diversity()

rt2x00link_precalculate_signal() will reset the quality TX/RX counters,
however rt2x00lib_antenna_diversity() requires the RX counter to
see what RSSI value must be used for a particular antenna.
We can't change the ordering since rt2x00lib_antenna_diversity() might
reset other statistics which are needed by the function called earlier.

Move the reset of the quality TX/RX counters into a seperate function
and move the call to after rt2x00lib_antenna_diversity().

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ivo van Doorn 2009-03-01 17:42:00 +01:00 committed by John W. Linville
parent 14d2aac580
commit 64abd80330
1 changed files with 15 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/net/wireless/rt2x00/rt2x00link.c
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@ -302,11 +302,6 @@ static void rt2x00link_precalculate_signal(struct rt2x00_dev *rt2x00dev)
PERCENTAGE(qual->rx_success, qual->rx_failed + qual->rx_success);
link->tx_percentage =
PERCENTAGE(qual->tx_success, qual->tx_failed + qual->tx_success);
qual->rx_success = 0;
qual->rx_failed = 0;
qual->tx_success = 0;
qual->tx_failed = 0;
}
int rt2x00link_calculate_signal(struct rt2x00_dev *rt2x00dev, int rssi)
@ -392,6 +387,16 @@ void rt2x00link_reset_tuner(struct rt2x00_dev *rt2x00dev, bool antenna)
rt2x00link_antenna_reset(rt2x00dev);
}
void rt2x00link_reset_qual(struct rt2x00_dev *rt2x00dev)
{
struct link_qual *qual = &rt2x00dev->link.qual;
qual->rx_success = 0;
qual->rx_failed = 0;
qual->tx_success = 0;
qual->tx_failed = 0;
}
static void rt2x00link_tuner(struct work_struct *work)
{
struct rt2x00_dev *rt2x00dev =
@ -447,6 +452,11 @@ static void rt2x00link_tuner(struct work_struct *work)
*/
rt2x00lib_antenna_diversity(rt2x00dev);
/*
* Reset the quality counters which recounted during each period.
*/
rt2x00link_reset_qual(rt2x00dev);
/*
* Increase tuner counter, and reschedule the next link tuner run.
*/