diff options
Diffstat (limited to 'net/wireless/util.c')
| -rw-r--r-- | net/wireless/util.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/net/wireless/util.c b/net/wireless/util.c index 6903dbdcb8c1..f218b151530a 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -1296,6 +1296,7 @@ bool ieee80211_operating_class_to_band(u8 operating_class, switch (operating_class) { case 112: case 115 ... 127: + case 128 ... 130: *band = IEEE80211_BAND_5GHZ; return true; case 81: @@ -1313,6 +1314,135 @@ bool ieee80211_operating_class_to_band(u8 operating_class, } EXPORT_SYMBOL(ieee80211_operating_class_to_band); +bool ieee80211_chandef_to_operating_class(struct cfg80211_chan_def *chandef, + u8 *op_class) +{ + u8 vht_opclass; + u16 freq = chandef->center_freq1; + + if (freq >= 2412 && freq <= 2472) { + if (chandef->width > NL80211_CHAN_WIDTH_40) + return false; + + /* 2.407 GHz, channels 1..13 */ + if (chandef->width == NL80211_CHAN_WIDTH_40) { + if (freq > chandef->chan->center_freq) + *op_class = 83; /* HT40+ */ + else + *op_class = 84; /* HT40- */ + } else { + *op_class = 81; + } + + return true; + } + + if (freq == 2484) { + if (chandef->width > NL80211_CHAN_WIDTH_40) + return false; + + *op_class = 82; /* channel 14 */ + return true; + } + + switch (chandef->width) { + case NL80211_CHAN_WIDTH_80: + vht_opclass = 128; + break; + case NL80211_CHAN_WIDTH_160: + vht_opclass = 129; + break; + case NL80211_CHAN_WIDTH_80P80: + vht_opclass = 130; + break; + case NL80211_CHAN_WIDTH_10: + case NL80211_CHAN_WIDTH_5: + return false; /* unsupported for now */ + default: + vht_opclass = 0; + break; + } + + /* 5 GHz, channels 36..48 */ + if (freq >= 5180 && freq <= 5240) { + if (vht_opclass) { + *op_class = vht_opclass; + } else if (chandef->width == NL80211_CHAN_WIDTH_40) { + if (freq > chandef->chan->center_freq) + *op_class = 116; + else + *op_class = 117; + } else { + *op_class = 115; + } + + return true; + } + + /* 5 GHz, channels 52..64 */ + if (freq >= 5260 && freq <= 5320) { + if (vht_opclass) { + *op_class = vht_opclass; + } else if (chandef->width == NL80211_CHAN_WIDTH_40) { + if (freq > chandef->chan->center_freq) + *op_class = 119; + else + *op_class = 120; + } else { + *op_class = 118; + } + + return true; + } + + /* 5 GHz, channels 100..144 */ + if (freq >= 5500 && freq <= 5720) { + if (vht_opclass) { + *op_class = vht_opclass; + } else if (chandef->width == NL80211_CHAN_WIDTH_40) { + if (freq > chandef->chan->center_freq) + *op_class = 122; + else + *op_class = 123; + } else { + *op_class = 121; + } + + return true; + } + + /* 5 GHz, channels 149..169 */ + if (freq >= 5745 && freq <= 5845) { + if (vht_opclass) { + *op_class = vht_opclass; + } else if (chandef->width == NL80211_CHAN_WIDTH_40) { + if (freq > chandef->chan->center_freq) + *op_class = 126; + else + *op_class = 127; + } else if (freq <= 5805) { + *op_class = 124; + } else { + *op_class = 125; + } + + return true; + } + + /* 56.16 GHz, channel 1..4 */ + if (freq >= 56160 + 2160 * 1 && freq <= 56160 + 2160 * 4) { + if (chandef->width >= NL80211_CHAN_WIDTH_40) + return false; + + *op_class = 180; + return true; + } + + /* not supported yet */ + return false; +} +EXPORT_SYMBOL(ieee80211_chandef_to_operating_class); + int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev, u32 beacon_int) { |