diff options
| author | Johannes Berg <johannes@sipsolutions.net> | 2008-09-11 00:01:57 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-09-15 16:48:22 -0400 |
| commit | 96dd22ac06b0dbfb069fdf530c72046a941e9694 (patch) | |
| tree | 4dbf19921a1d4add0ca03a0ff1d7db37c4ecb8be /net/mac80211/util.c | |
| parent | ccd7b36286f8c42b3fa95c5a8d402162ffab41df (diff) | |
mac80211: inform driver of basic rateset
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>
Diffstat (limited to 'net/mac80211/util.c')
| -rw-r--r-- | net/mac80211/util.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index a7968df9dac..d6aca91e612 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -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; +} |