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rt2x00: Fix HT40 operation in rt2800.

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Closer inspection of the legacy Ralink driver reveals that in case of HT40+
or HT40- we must adjust the frequency settings that we program to the device.
Implement the same adjustment in the rt2x00 code.

With this HT40 seems to work for all devices supported by rt2800pci and
rt2800usb.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
This commit is contained in:
Gertjan van Wingerde
2010-06-03 10:52:08 +02:00
committed by Ivo van Doorn
parent 532bc2d524
commit 06443e46c6
4 changed files with 46 additions and 8 deletions
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12
drivers/net/wireless/rt2x00/rt2x00config.c
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@@ -170,23 +170,27 @@ void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
unsigned int ieee80211_flags)
{
struct rt2x00lib_conf libconf;
u16 hw_value;
memset(&libconf, 0, sizeof(libconf));
libconf.conf = conf;
if (ieee80211_flags & IEEE80211_CONF_CHANGE_CHANNEL) {
if (conf_is_ht40(conf))
if (conf_is_ht40(conf)) {
__set_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags);
else
hw_value = rt2x00ht_center_channel(rt2x00dev, conf);
} else {
__clear_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags);
hw_value = conf->channel->hw_value;
}
memcpy(&libconf.rf,
&rt2x00dev->spec.channels[conf->channel->hw_value],
&rt2x00dev->spec.channels[hw_value],
sizeof(libconf.rf));
memcpy(&libconf.channel,
&rt2x00dev->spec.channels_info[conf->channel->hw_value],
&rt2x00dev->spec.channels_info[hw_value],
sizeof(libconf.channel));
}