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| author | Jo-Philipp Wich <jow@openwrt.org> | 2013-04-09 14:37:55 +0000 |
|---|---|---|
| committer | Jo-Philipp Wich <jow@openwrt.org> | 2013-04-09 14:37:55 +0000 |
| commit | 7ca7bc501e15282d4fac3719052731113afcece1 (patch) | |
| tree | 6812e713f0f4e6feabbb9e8b2d5486e440624bf1 /package/network/utils/iwinfo/src/iwinfo_nl80211.c | |
| parent | 9f21b979f4896e7cbce5ddf91fd40db1d2472c5e (diff) | |
| download | mtk-20170518-7ca7bc501e15282d4fac3719052731113afcece1.zip mtk-20170518-7ca7bc501e15282d4fac3719052731113afcece1.tar.gz mtk-20170518-7ca7bc501e15282d4fac3719052731113afcece1.tar.bz2 | |
iwinfo: fix frequency/channel and channel/frequency conversions to properly implement 802.11j
SVN-Revision: 36292
Diffstat (limited to 'package/network/utils/iwinfo/src/iwinfo_nl80211.c')
| -rw-r--r-- | package/network/utils/iwinfo/src/iwinfo_nl80211.c | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/package/network/utils/iwinfo/src/iwinfo_nl80211.c b/package/network/utils/iwinfo/src/iwinfo_nl80211.c index 819845a..2a2bb66 100644 --- a/package/network/utils/iwinfo/src/iwinfo_nl80211.c +++ b/package/network/utils/iwinfo/src/iwinfo_nl80211.c @@ -346,23 +346,30 @@ static int nl80211_freq2channel(int freq) { if (freq == 2484) return 14; - - if (freq < 2484) + else if (freq < 2484) return (freq - 2407) / 5; - - return (freq / 5) - 1000; + else if (freq >= 4910 && freq <= 4980) + return (freq - 4000) / 5; + else + return (freq - 5000) / 5; } static int nl80211_channel2freq(int channel, const char *band) { - if (channel == 14) - return 2484; - - if ((channel < 14) && (!band || band[0] != 'a')) - return (channel * 5) + 2407; - - if (channel > 0) - return (1000 + channel) * 5; + if (!band || band[0] != 'a') + { + if (channel == 14) + return 2484; + else if (channel < 14) + return (channel * 5) + 2407; + } + else + { + if (channel >= 182 && channel <= 196) + return (channel * 5) + 4000; + else + return (channel * 5) + 5000; + } return 0; } |