More changes to the new 802.11 layer:
* Add Kevin Lahey's power-saving support from the old 802.11 layer
* Support for frequency-hopping PHYs
* Add support frequency-hopping PHY mode, IFM_IEEE80211_FH
* Add channel flags for frequency-hopping
* Add mode<->media mappings in for FH PHY in ieee80211_media2rate
and ieee80211_rate2media
* Stop using IFM_MAKEMODE macro since the mode constants
(e.g., IFM_IEEE80211_11A) are pre-shifted in sys/net/if_media.h
* Add some PLCP constants.
This commit is contained in:
dyoung
parent
60dad7c3fe
commit
8a3890c655
@ -1,4 +1,4 @@
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/* $NetBSD: ieee80211.c,v 1.4 2003/09/23 16:01:21 dyoung Exp $ */
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/* $NetBSD: ieee80211.c,v 1.5 2003/10/13 04:28:35 dyoung Exp $ */
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/*-
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* Copyright (c) 2001 Atsushi Onoe
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* Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
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@ -35,7 +35,7 @@
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#ifdef __FreeBSD__
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__FBSDID("$FreeBSD: src/sys/net80211/ieee80211.c,v 1.7 2003/08/13 22:09:44 sam Exp $");
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#else
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__KERNEL_RCSID(0, "$NetBSD: ieee80211.c,v 1.4 2003/09/23 16:01:21 dyoung Exp $");
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__KERNEL_RCSID(0, "$NetBSD: ieee80211.c,v 1.5 2003/10/13 04:28:35 dyoung Exp $");
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#endif
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/*
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@ -104,6 +104,7 @@ static const char *ieee80211_phymode_name[] = {
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"11a", /* IEEE80211_MODE_11A */
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"11b", /* IEEE80211_MODE_11B */
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"11g", /* IEEE80211_MODE_11G */
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"FH", /* IEEE80211_MODE_FH */
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"turbo", /* IEEE80211_MODE_TURBO */
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};
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@ -149,6 +150,8 @@ ieee80211_ifattach(struct ifnet *ifp)
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ic->ic_modecaps |= 1<<IEEE80211_MODE_11B;
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if (IEEE80211_IS_CHAN_PUREG(c))
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ic->ic_modecaps |= 1<<IEEE80211_MODE_11G;
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if (IEEE80211_IS_CHAN_FHSS(c))
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ic->ic_modecaps |= 1<<IEEE80211_MODE_FH;
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if (IEEE80211_IS_CHAN_T(c))
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ic->ic_modecaps |= 1<<IEEE80211_MODE_TURBO;
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}
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@ -290,10 +293,11 @@ ieee80211_media_init(struct ifnet *ifp,
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for (mode = IEEE80211_MODE_AUTO; mode < IEEE80211_MODE_MAX; mode++) {
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static const u_int mopts[] = {
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IFM_AUTO,
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IFM_MAKEMODE(IFM_IEEE80211_11A),
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IFM_MAKEMODE(IFM_IEEE80211_11B),
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IFM_MAKEMODE(IFM_IEEE80211_11G),
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IFM_MAKEMODE(IFM_IEEE80211_11A) | IFM_IEEE80211_TURBO,
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IFM_IEEE80211_11A,
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IFM_IEEE80211_11B,
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IFM_IEEE80211_11G,
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IFM_IEEE80211_FH,
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IFM_IEEE80211_11A | IFM_IEEE80211_TURBO,
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};
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if ((ic->ic_modecaps & (1<<mode)) == 0)
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continue;
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@ -367,6 +371,10 @@ ieee80211_media_init(struct ifnet *ifp,
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if (maxrate)
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ifp->if_baudrate = IF_Mbps(maxrate);
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if (ic->ic_max_aid == 0)
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ic->ic_max_aid = IEEE80211_MAX_AID;
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#undef ADD
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}
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@ -409,6 +417,9 @@ ieee80211_media_change(struct ifnet *ifp)
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case IFM_IEEE80211_11G:
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newphymode = IEEE80211_MODE_11G;
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break;
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case IFM_IEEE80211_FH:
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newphymode = IEEE80211_MODE_FH;
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break;
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case IFM_AUTO:
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newphymode = IEEE80211_MODE_AUTO;
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break;
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@ -579,16 +590,19 @@ ieee80211_media_status(struct ifnet *ifp, struct ifmediareq *imr)
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}
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switch (ic->ic_curmode) {
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case IEEE80211_MODE_11A:
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imr->ifm_active |= IFM_MAKEMODE(IFM_IEEE80211_11A);
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imr->ifm_active |= IFM_IEEE80211_11A;
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break;
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case IEEE80211_MODE_11B:
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imr->ifm_active |= IFM_MAKEMODE(IFM_IEEE80211_11B);
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imr->ifm_active |= IFM_IEEE80211_11B;
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break;
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case IEEE80211_MODE_11G:
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imr->ifm_active |= IFM_MAKEMODE(IFM_IEEE80211_11G);
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imr->ifm_active |= IFM_IEEE80211_11G;
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break;
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case IEEE80211_MODE_FH:
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imr->ifm_active |= IFM_IEEE80211_FH;
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break;
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case IEEE80211_MODE_TURBO:
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imr->ifm_active |= IFM_MAKEMODE(IFM_IEEE80211_11A)
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imr->ifm_active |= IFM_IEEE80211_11A
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| IFM_IEEE80211_TURBO;
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break;
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}
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@ -622,6 +636,7 @@ ieee80211_set11gbasicrates(struct ieee80211_rateset *rs, enum ieee80211_phymode
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{ 3, { 12, 24, 48 } }, /* IEEE80211_MODE_11A */
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{ 4, { 2, 4, 11, 22 } }, /* IEEE80211_MODE_11B */
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{ 7, { 2, 4, 11, 22, 12, 24, 48 } },/* IEEE80211_MODE_11G */
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{ 0 }, /* IEEE80211_MODE_FH */
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{ 0 }, /* IEEE80211_MODE_TURBO */
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};
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int i, j;
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@ -651,6 +666,7 @@ ieee80211_setmode(struct ieee80211com *ic, enum ieee80211_phymode mode)
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IEEE80211_CHAN_A, /* IEEE80211_MODE_11A */
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IEEE80211_CHAN_B, /* IEEE80211_MODE_11B */
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IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_11G */
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IEEE80211_CHAN_FHSS, /* IEEE80211_MODE_FH */
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IEEE80211_CHAN_T, /* IEEE80211_MODE_TURBO */
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};
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struct ieee80211_channel *c;
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@ -715,6 +731,11 @@ ieee80211_setmode(struct ieee80211com *ic, enum ieee80211_phymode mode)
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ic->ic_ibss_chan = &ic->ic_channels[i];
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break;
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}
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KASSERT(ic->ic_ibss_chan != NULL &&
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isset(ic->ic_chan_active,
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ieee80211_chan2ieee(ic, ic->ic_ibss_chan)),
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("Bad IBSS channel %u\n",
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ieee80211_chan2ieee(ic, ic->ic_ibss_chan)));
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}
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/*
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@ -743,6 +764,8 @@ ieee80211_setmode(struct ieee80211com *ic, enum ieee80211_phymode mode)
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* Return the phy mode for with the specified channel so the
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* caller can select a rate set. This is problematic and the
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* work here assumes how things work elsewhere in this code.
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*
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* XXX never returns turbo modes -dcy
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*/
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enum ieee80211_phymode
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ieee80211_chan2mode(struct ieee80211com *ic, struct ieee80211_channel *chan)
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@ -760,6 +783,8 @@ ieee80211_chan2mode(struct ieee80211com *ic, struct ieee80211_channel *chan)
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*/
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if (IEEE80211_IS_CHAN_5GHZ(chan))
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return IEEE80211_MODE_11A;
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else if (IEEE80211_IS_CHAN_FHSS(chan))
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return IEEE80211_MODE_FH;
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else if (chan->ic_flags & (IEEE80211_CHAN_OFDM|IEEE80211_CHAN_DYN))
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return IEEE80211_MODE_11G;
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else
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@ -778,31 +803,33 @@ ieee80211_rate2media(struct ieee80211com *ic, int rate, enum ieee80211_phymode m
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u_int m; /* rate + mode */
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u_int r; /* if_media rate */
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} rates[] = {
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{ 2 | IFM_MAKEMODE(IFM_IEEE80211_11B), IFM_IEEE80211_DS1 },
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{ 4 | IFM_MAKEMODE(IFM_IEEE80211_11B), IFM_IEEE80211_DS2 },
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{ 11 | IFM_MAKEMODE(IFM_IEEE80211_11B), IFM_IEEE80211_DS5 },
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{ 22 | IFM_MAKEMODE(IFM_IEEE80211_11B), IFM_IEEE80211_DS11 },
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{ 44 | IFM_MAKEMODE(IFM_IEEE80211_11B), IFM_IEEE80211_DS22 },
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{ 12 | IFM_MAKEMODE(IFM_IEEE80211_11A), IFM_IEEE80211_OFDM6 },
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{ 18 | IFM_MAKEMODE(IFM_IEEE80211_11A), IFM_IEEE80211_OFDM9 },
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{ 24 | IFM_MAKEMODE(IFM_IEEE80211_11A), IFM_IEEE80211_OFDM12 },
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{ 36 | IFM_MAKEMODE(IFM_IEEE80211_11A), IFM_IEEE80211_OFDM18 },
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{ 48 | IFM_MAKEMODE(IFM_IEEE80211_11A), IFM_IEEE80211_OFDM24 },
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{ 72 | IFM_MAKEMODE(IFM_IEEE80211_11A), IFM_IEEE80211_OFDM36 },
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{ 96 | IFM_MAKEMODE(IFM_IEEE80211_11A), IFM_IEEE80211_OFDM48 },
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{ 108 | IFM_MAKEMODE(IFM_IEEE80211_11A), IFM_IEEE80211_OFDM54 },
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{ 2 | IFM_MAKEMODE(IFM_IEEE80211_11G), IFM_IEEE80211_DS1 },
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{ 4 | IFM_MAKEMODE(IFM_IEEE80211_11G), IFM_IEEE80211_DS2 },
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{ 11 | IFM_MAKEMODE(IFM_IEEE80211_11G), IFM_IEEE80211_DS5 },
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{ 22 | IFM_MAKEMODE(IFM_IEEE80211_11G), IFM_IEEE80211_DS11 },
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{ 12 | IFM_MAKEMODE(IFM_IEEE80211_11G), IFM_IEEE80211_OFDM6 },
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{ 18 | IFM_MAKEMODE(IFM_IEEE80211_11G), IFM_IEEE80211_OFDM9 },
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{ 24 | IFM_MAKEMODE(IFM_IEEE80211_11G), IFM_IEEE80211_OFDM12 },
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{ 36 | IFM_MAKEMODE(IFM_IEEE80211_11G), IFM_IEEE80211_OFDM18 },
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{ 48 | IFM_MAKEMODE(IFM_IEEE80211_11G), IFM_IEEE80211_OFDM24 },
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{ 72 | IFM_MAKEMODE(IFM_IEEE80211_11G), IFM_IEEE80211_OFDM36 },
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{ 96 | IFM_MAKEMODE(IFM_IEEE80211_11G), IFM_IEEE80211_OFDM48 },
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{ 108 | IFM_MAKEMODE(IFM_IEEE80211_11G), IFM_IEEE80211_OFDM54 },
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{ 2 | IFM_IEEE80211_FH, IFM_IEEE80211_FH1 },
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{ 4 | IFM_IEEE80211_FH, IFM_IEEE80211_FH2 },
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{ 2 | IFM_IEEE80211_11B, IFM_IEEE80211_DS1 },
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{ 4 | IFM_IEEE80211_11B, IFM_IEEE80211_DS2 },
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{ 11 | IFM_IEEE80211_11B, IFM_IEEE80211_DS5 },
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{ 22 | IFM_IEEE80211_11B, IFM_IEEE80211_DS11 },
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{ 44 | IFM_IEEE80211_11B, IFM_IEEE80211_DS22 },
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{ 12 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM6 },
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{ 18 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM9 },
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{ 24 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM12 },
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{ 36 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM18 },
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{ 48 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM24 },
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{ 72 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM36 },
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{ 96 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM48 },
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{ 108 | IFM_IEEE80211_11A, IFM_IEEE80211_OFDM54 },
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{ 2 | IFM_IEEE80211_11G, IFM_IEEE80211_DS1 },
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{ 4 | IFM_IEEE80211_11G, IFM_IEEE80211_DS2 },
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{ 11 | IFM_IEEE80211_11G, IFM_IEEE80211_DS5 },
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{ 22 | IFM_IEEE80211_11G, IFM_IEEE80211_DS11 },
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{ 12 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM6 },
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{ 18 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM9 },
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{ 24 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM12 },
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{ 36 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM18 },
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{ 48 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM24 },
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{ 72 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM36 },
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{ 96 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM48 },
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{ 108 | IFM_IEEE80211_11G, IFM_IEEE80211_OFDM54 },
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/* NB: OFDM72 doesn't realy exist so we don't handle it */
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};
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u_int mask, i;
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@ -811,26 +838,30 @@ ieee80211_rate2media(struct ieee80211com *ic, int rate, enum ieee80211_phymode m
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switch (mode) {
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case IEEE80211_MODE_11A:
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case IEEE80211_MODE_TURBO:
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mask |= IFM_MAKEMODE(IFM_IEEE80211_11A);
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mask |= IFM_IEEE80211_11A;
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break;
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case IEEE80211_MODE_11B:
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mask |= IFM_MAKEMODE(IFM_IEEE80211_11B);
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mask |= IFM_IEEE80211_11B;
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break;
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case IEEE80211_MODE_FH:
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mask |= IFM_IEEE80211_FH;
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break;
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case IEEE80211_MODE_11G:
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mask |= IFM_IEEE80211_11G;
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break;
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case IEEE80211_MODE_AUTO:
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/* NB: ic may be NULL for some drivers */
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if (ic && ic->ic_phytype == IEEE80211_T_FH) {
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/* must handle these specially */
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switch (mask) {
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case 2: return IFM_IEEE80211_FH1;
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case 4: return IFM_IEEE80211_FH2;
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}
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return IFM_AUTO;
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switch (ic->ic_phytype) {
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case IEEE80211_T_FH:
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mask |= IFM_IEEE80211_FH;
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break;
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case IEEE80211_T_DS:
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mask |= IFM_IEEE80211_11B;
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break;
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case IEEE80211_T_OFDM:
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case IEEE80211_T_TURBO:
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mask |= IFM_IEEE80211_11G;
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break;
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}
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/* NB: hack, 11g matches both 11b+11a rates */
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/* fall thru... */
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case IEEE80211_MODE_11G:
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mask |= IFM_MAKEMODE(IFM_IEEE80211_11G);
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break;
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}
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for (i = 0; i < N(rates); i++)
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if (rates[i].m == mask)
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@ -843,29 +874,36 @@ int
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ieee80211_media2rate(int mword)
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{
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#define N(a) (sizeof(a) / sizeof(a[0]))
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static const int ieeerates[] = {
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-1, /* IFM_AUTO */
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0, /* IFM_MANUAL */
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0, /* IFM_NONE */
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2, /* IFM_IEEE80211_FH1 */
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4, /* IFM_IEEE80211_FH2 */
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2, /* IFM_IEEE80211_DS1 */
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4, /* IFM_IEEE80211_DS2 */
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11, /* IFM_IEEE80211_DS5 */
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22, /* IFM_IEEE80211_DS11 */
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44, /* IFM_IEEE80211_DS22 */
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12, /* IFM_IEEE80211_OFDM6 */
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18, /* IFM_IEEE80211_OFDM9 */
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24, /* IFM_IEEE80211_OFDM12 */
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36, /* IFM_IEEE80211_OFDM18 */
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48, /* IFM_IEEE80211_OFDM24 */
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72, /* IFM_IEEE80211_OFDM36 */
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96, /* IFM_IEEE80211_OFDM48 */
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108, /* IFM_IEEE80211_OFDM54 */
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144, /* IFM_IEEE80211_OFDM72 */
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int i;
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static const struct {
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int subtype;
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int rate;
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} ieeerates[] = {
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{ IFM_AUTO, -1 },
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{ IFM_MANUAL, 0 },
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{ IFM_NONE, 0 },
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{ IFM_IEEE80211_FH1, 2 },
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{ IFM_IEEE80211_FH2, 4 },
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{ IFM_IEEE80211_DS1, 2 },
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{ IFM_IEEE80211_DS2, 4 },
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{ IFM_IEEE80211_DS5, 11 },
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{ IFM_IEEE80211_DS11, 22 },
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{ IFM_IEEE80211_DS22, 44 },
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{ IFM_IEEE80211_OFDM6, 12 },
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{ IFM_IEEE80211_OFDM9, 18 },
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{ IFM_IEEE80211_OFDM12, 24 },
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{ IFM_IEEE80211_OFDM18, 36 },
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{ IFM_IEEE80211_OFDM24, 48 },
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{ IFM_IEEE80211_OFDM36, 72 },
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{ IFM_IEEE80211_OFDM48, 96 },
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{ IFM_IEEE80211_OFDM54, 108 },
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{ IFM_IEEE80211_OFDM72, 144 },
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};
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return IFM_SUBTYPE(mword) < N(ieeerates) ?
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ieeerates[IFM_SUBTYPE(mword)] : 0;
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for (i = 0; i < N(ieeerates); i++) {
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if (ieeerates[i].subtype == IFM_SUBTYPE(mword))
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return ieeerates[i].rate;
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}
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return 0;
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#undef N
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}
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@ -1,4 +1,4 @@
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/* $NetBSD: ieee80211.h,v 1.2 2003/09/14 01:14:54 dyoung Exp $ */
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/* $NetBSD: ieee80211.h,v 1.3 2003/10/13 04:28:35 dyoung Exp $ */
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/*-
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* Copyright (c) 2001 Atsushi Onoe
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* Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
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@ -52,6 +52,9 @@ struct ieee80211_plcp_hdr {
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u_int16_t i_crc;
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} __attribute__((__packed__));
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#define IEEE80211_PLCP_SFD 0xF3A0
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#define IEEE80211_PLCP_SERVICE 0x00
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/*
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* generic definitions for IEEE 802.11 frames
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*/
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@ -316,6 +319,15 @@ enum {
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#define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \
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(IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
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#define IEEE80211_MAX_AID 2007
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#define IEEE80211_AID_SET(b, w) \
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((w)[((b) & ~0xc000) / 32] |= (1 << (((b) & ~0xc000) % 32)))
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#define IEEE80211_AID_CLR(b, w) \
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((w)[((b) & ~0xc000) / 32] &= ~(1 << (((b) & ~0xc000) % 32)))
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#define IEEE80211_AID_ISSET(b, w) \
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((w)[((b) & ~0xc000) / 32] & (1 << (((b) & ~0xc000) % 32)))
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/*
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* RTS frame length parameters. The default is specified in
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* the 802.11 spec. The max may be wrong for jumbo frames.
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