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[net80211] add FVHT flags for channel widths.

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The 11n code uses these bits for both configuration /and/ controlling
the channel width on softmac chips - it uses it to find the widest
width for all VAPs (eg a HT20 vap and a HT40 vap) to know what to
configure the ic_curchan.

For fullmac devices it isn't /as/ important, as each virtual device
exposed by the firmware will likely have its own configuration and the
firmware figures out what to do to enable it.
This commit is contained in:
Adrian Chadd 2017-01-07 01:51:54 +00:00
parent efda3f5684
commit 02527029a5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=311574
1 changed files with 26 additions and 1 deletions
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27
sys/net80211/ieee80211_var.h
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@ -653,8 +653,12 @@ MALLOC_DECLARE(M_80211_VAP);
#define IEEE80211_FVEN_BITS "\20"
#define IEEE80211_FVHT_VHT 0x000000001 /* CONF: VHT supported */
#define IEEE80211_FVHT_USEVHT40 0x000000002 /* CONF: Use VHT40 */
#define IEEE80211_FVHT_USEVHT80 0x000000004 /* CONF: Use VHT80 */
#define IEEE80211_FVHT_USEVHT80P80 0x000000008 /* CONF: Use VHT 80+80 */
#define IEEE80211_FVHT_USEVHT160 0x000000010 /* CONF: Use VHT160 */
#define IEEE80211_VFHT_BITS \
"\20\1VHT"
"\20\1VHT\2VHT40\3VHT80\4VHT80P80\5VHT160"
int ic_printf(struct ieee80211com *, const char *, ...) __printflike(2, 3);
void ieee80211_ifattach(struct ieee80211com *);
@ -829,6 +833,27 @@ ieee80211_htchanflags(const struct ieee80211_channel *c)
IEEE80211_IS_CHAN_HT(c) ? IEEE80211_FHT_HT : 0;
}
/*
* Calculate VHT channel promotion flags for a channel.
* XXX belongs in ieee80211_vht.h but needs IEEE80211_FVHT_*
*/
static __inline int
ieee80211_vhtchanflags(const struct ieee80211_channel *c)
{
if (IEEE80211_IS_CHAN_VHT160(c))
return IEEE80211_FVHT_USEVHT160;
if (IEEE80211_IS_CHAN_VHT80_80(c))
return IEEE80211_FVHT_USEVHT80P80;
if (IEEE80211_IS_CHAN_VHT80(c))
return IEEE80211_FVHT_USEVHT80;
if (IEEE80211_IS_CHAN_VHT40(c))
return IEEE80211_FVHT_USEVHT40;
if (IEEE80211_IS_CHAN_VHT(c))
return IEEE80211_FVHT_VHT;
return (0);
}
/*
* Fetch the current TX power (cap) for the given node.
*