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rt2x00: Disable link tuning while scanning

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While scanning the link tuner must be disabled. Otherwise
it will interfere with receiving all beacons for each channel
due to changing sensitivity levels.

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
2010-07-11 12:24:47 +02:00
committed by John W. Linville
parent 27df2a9ce9
commit d8147f9d9e
9 changed files with 47 additions and 4 deletions
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24
drivers/net/wireless/rt2x00/rt2x00mac.c
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@@ -347,9 +347,11 @@ int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed)
/*
* Some configuration parameters (e.g. channel and antenna values) can
* only be set when the radio is enabled, but do require the RX to
* be off.
* be off. During this period we should keep link tuning enabled,
* if for any reason the link tuner must be reset, this will be
* handled by rt2x00lib_config().
*/
rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF_LINK);
/*
* When we've just turned on the radio, we want to reprogram
@@ -367,7 +369,7 @@ int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed)
rt2x00lib_config_antenna(rt2x00dev, rt2x00dev->default_ant);
/* Turn RX back on */
rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON_LINK);
return 0;
}
@@ -540,6 +542,22 @@ int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
EXPORT_SYMBOL_GPL(rt2x00mac_set_key);
#endif /* CONFIG_RT2X00_LIB_CRYPTO */
void rt2x00mac_sw_scan_start(struct ieee80211_hw *hw)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
__set_bit(DEVICE_STATE_SCANNING, &rt2x00dev->flags);
rt2x00link_stop_tuner(rt2x00dev);
}
EXPORT_SYMBOL_GPL(rt2x00mac_sw_scan_start);
void rt2x00mac_sw_scan_complete(struct ieee80211_hw *hw)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
__clear_bit(DEVICE_STATE_SCANNING, &rt2x00dev->flags);
rt2x00link_start_tuner(rt2x00dev);
}
EXPORT_SYMBOL_GPL(rt2x00mac_sw_scan_complete);
int rt2x00mac_get_stats(struct ieee80211_hw *hw,
struct ieee80211_low_level_stats *stats)
{