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mac80211: inform driver of basic rateset

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Drivers need to know the basic rateset to be able to configure
the ACK/CTS programming in hardware correctly.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg
2008-09-11 00:01:57 +02:00
committed by John W. Linville
parent ccd7b36286
commit 96dd22ac06
6 changed files with 50 additions and 39 deletions
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28
net/mac80211/util.c
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@@ -640,3 +640,31 @@ int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freqMHz)
return ret;
}
u64 ieee80211_mandatory_rates(struct ieee80211_local *local,
enum ieee80211_band band)
{
struct ieee80211_supported_band *sband;
struct ieee80211_rate *bitrates;
u64 mandatory_rates;
enum ieee80211_rate_flags mandatory_flag;
int i;
sband = local->hw.wiphy->bands[band];
if (!sband) {
WARN_ON(1);
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
}
if (band == IEEE80211_BAND_2GHZ)
mandatory_flag = IEEE80211_RATE_MANDATORY_B;
else
mandatory_flag = IEEE80211_RATE_MANDATORY_A;
bitrates = sband->bitrates;
mandatory_rates = 0;
for (i = 0; i < sband->n_bitrates; i++)
if (bitrates[i].flags & mandatory_flag)
mandatory_rates |= BIT(i);
return mandatory_rates;
}