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Add initial support for 900MHz channels; still has some rough

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edges but ifconfig ath0 list chan works and you can use ieee
channel #'s to lock/select a channel.

MFC after:	1 month
This commit is contained in:
Sam Leffler 2007-01-15 01:20:28 +00:00
parent 517eabc6fa
commit 9a71a3d565
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=166015
1 changed files with 35 additions and 7 deletions
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42
sbin/ifconfig/ifieee80211.c
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@ -156,20 +156,43 @@ ieee80211_ieee2mhz(u_int chan)
return 5000 + (chan*5);
}
static __inline int
mapgsm(u_int freq, u_int flags)
{
freq *= 10;
if (flags & IEEE80211_CHAN_QUARTER)
freq += 5;
else if (flags & IEEE80211_CHAN_HALF)
freq += 10;
else
freq += 20;
/* NB: there is no 907/20 wide but leave room */
return (freq - 906*10) / 5;
}
static __inline int
mappsb(u_int freq, u_int flags)
{
return 37 + ((freq * 10) + ((freq % 5) == 2 ? 5 : 0) - 49400) / 5;
}
/*
* Convert MHz frequency to IEEE channel number.
*/
static u_int
ieee80211_mhz2ieee(u_int freq, u_int flags)
{
if ((flags & IEEE80211_CHAN_GSM) || (907 <= freq && freq <= 922))
return mapgsm(freq, flags);
if (freq == 2484)
return 14;
if (freq < 2484)
return (freq - 2407) / 5;
if (freq < 5000) {
if (freq > 4900) /* XXX hack mapping of PSB */
return 37 + ((freq * 10) +
(((freq % 5) == 2) ? 5 : 0) - 49400) / 5;
if (flags & (IEEE80211_CHAN_HALF|IEEE80211_CHAN_QUARTER))
return mappsb(freq, flags);
else if (freq > 4900)
return (freq - 4000) / 5;
else
return 15 + ((freq - 2512) / 20);
}
@ -1039,7 +1062,7 @@ list_stations(int s)
printf("%s %4u %4d %3dM %4d %4d %6d %6d %-4.4s %-4.4s"
, ether_ntoa((const struct ether_addr*) si->isi_macaddr)
, IEEE80211_AID(si->isi_associd)
, ieee80211_mhz2ieee(si->isi_freq, si->isi_freq)
, ieee80211_mhz2ieee(si->isi_freq, si->isi_flags)
, (si->isi_rates[si->isi_txrate] & IEEE80211_RATE_VAL)/2
, si->isi_rssi
, si->isi_inact
@ -1072,9 +1095,14 @@ print_chaninfo(const struct ieee80211_channel *c)
else
strlcat(buf, " 11a", sizeof(buf));
}
if (IEEE80211_IS_CHAN_ANYG(c))
strlcat(buf, " 11g", sizeof(buf));
else if (IEEE80211_IS_CHAN_B(c))
if (IEEE80211_IS_CHAN_ANYG(c)) {
if (IEEE80211_IS_CHAN_HALF(c))
strlcat(buf, " 11g/10Mhz", sizeof(buf));
else if (IEEE80211_IS_CHAN_QUARTER(c))
strlcat(buf, " 11g/5Mhz", sizeof(buf));
else
strlcat(buf, " 11g", sizeof(buf));
} else if (IEEE80211_IS_CHAN_B(c))
strlcat(buf, " 11b", sizeof(buf));
if (IEEE80211_IS_CHAN_T(c))
strlcat(buf, " Turbo", sizeof(buf));