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Differential D14731 Diff 40430 sys/dev/usb/wlan/if_zyd.c

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sys/dev/usb/wlan/if_zyd.c

Show First 20 Lines • Show All 2,430 Lines • ▼ Show 20 Lines default: /* Error */
} }
break; break;
} }
} }
static int static int
zyd_tx_start(struct zyd_softc *sc, struct mbuf *m0, struct ieee80211_node *ni) zyd_tx_start(struct zyd_softc *sc, struct mbuf *m0, struct ieee80211_node *ni)
{ {
const struct ieee80211_rate_t *rate;
const struct ieee80211_txparam_vht *tp = ni->ni_txparms;
struct ieee80211vap *vap = ni->ni_vap; struct ieee80211vap *vap = ni->ni_vap;
struct ieee80211com *ic = ni->ni_ic; struct ieee80211com *ic = ni->ni_ic;
struct zyd_tx_desc *desc; struct zyd_tx_desc *desc;
struct zyd_tx_data *data; struct zyd_tx_data *data;
struct ieee80211_frame *wh; struct ieee80211_frame *wh;
const struct ieee80211_txparam *tp = ni->ni_txparms;
struct ieee80211_key *k; struct ieee80211_key *k;
int rate, totlen, type, ismcast; int totlen, type, ismcast;
static const uint8_t ratediv[] = ZYD_TX_RATEDIV; static const uint8_t ratediv[] = ZYD_TX_RATEDIV;
uint8_t phy;
uint16_t pktlen;
uint32_t bits; uint32_t bits;
uint16_t pktlen, rate_idx;
uint8_t phy;
wh = mtod(m0, struct ieee80211_frame *); wh = mtod(m0, struct ieee80211_frame *);
data = STAILQ_FIRST(&sc->tx_free); data = STAILQ_FIRST(&sc->tx_free);
STAILQ_REMOVE_HEAD(&sc->tx_free, next); STAILQ_REMOVE_HEAD(&sc->tx_free, next);
sc->tx_nfree--; sc->tx_nfree--;
ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1); ismcast = IEEE80211_IS_MULTICAST(wh->i_addr1);
type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK;
if (type == IEEE80211_FC0_TYPE_MGT || if (type == IEEE80211_FC0_TYPE_MGT ||
type == IEEE80211_FC0_TYPE_CTL || type == IEEE80211_FC0_TYPE_CTL ||
(m0->m_flags & M_EAPOL) != 0) { (m0->m_flags & M_EAPOL) != 0) {
rate = tp->mgmtrate; rate_idx = tp->mgmtrate;
} else { } else {
/* for data frames */ /* for data frames */
if (ismcast) if (ismcast)
rate = tp->mcastrate; rate_idx = tp->mcastrate;
else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE) else if (tp->ucastrate != IEEE80211_FIXED_RATE_NONE)
rate = tp->ucastrate; rate_idx = tp->ucastrate;
else { else {
(void) ieee80211_ratectl_rate(ni, NULL, 0); (void) ieee80211_ratectl_rate(ni, NULL, 0);
rate = ni->ni_txrate; rate_idx = ni->ni_txrate;
} }
} }
rate = ieee80211_get_rate(rate_idx);
if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) { if (wh->i_fc[1] & IEEE80211_FC1_PROTECTED) {
k = ieee80211_crypto_encap(ni, m0); k = ieee80211_crypto_encap(ni, m0);
if (k == NULL) { if (k == NULL) {
return (ENOBUFS); return (ENOBUFS);
} }
/* packet header may have moved, reset our local pointer */ /* packet header may have moved, reset our local pointer */
wh = mtod(m0, struct ieee80211_frame *); wh = mtod(m0, struct ieee80211_frame *);
} }
data->ni = ni; data->ni = ni;
data->m = m0; data->m = m0;
data->rate = rate; data->rate = rate->value;
/* fill Tx descriptor */ /* fill Tx descriptor */
desc = &data->desc; desc = &data->desc;
phy = zyd_plcp_signal(sc, rate); phy = zyd_plcp_signal(sc, rate->value);
desc->phy = phy; desc->phy = phy;
if (ZYD_RATE_IS_OFDM(rate)) { if (rate->type == IEEE80211_T_OFDM) {
desc->phy |= ZYD_TX_PHY_OFDM; desc->phy |= ZYD_TX_PHY_OFDM;
if (IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan)) if (IEEE80211_IS_CHAN_5GHZ(ic->ic_curchan))
desc->phy |= ZYD_TX_PHY_5GHZ; desc->phy |= ZYD_TX_PHY_5GHZ;
} else if (rate != 2 && (ic->ic_flags & IEEE80211_F_SHPREAMBLE)) } else if (rate->props.cck.short_preamble &&
(ic->ic_flags & IEEE80211_F_SHPREAMBLE))
desc->phy |= ZYD_TX_PHY_SHPREAMBLE; desc->phy |= ZYD_TX_PHY_SHPREAMBLE;
totlen = m0->m_pkthdr.len + IEEE80211_CRC_LEN; totlen = m0->m_pkthdr.len + IEEE80211_CRC_LEN;
desc->len = htole16(totlen); desc->len = htole16(totlen);
desc->flags = ZYD_TX_FLAG_BACKOFF; desc->flags = ZYD_TX_FLAG_BACKOFF;
if (!ismcast) { if (!ismcast) {
/* multicast frames are not sent at OFDM rates in 802.11b/g */ /* multicast frames are not sent at OFDM rates in 802.11b/g */
if (totlen > vap->iv_rtsthreshold) { if (totlen > vap->iv_rtsthreshold) {
desc->flags |= ZYD_TX_FLAG_RTS; desc->flags |= ZYD_TX_FLAG_RTS;
} else if (ZYD_RATE_IS_OFDM(rate) && } else if (rate->type == IEEE80211_T_OFDM &&
(ic->ic_flags & IEEE80211_F_USEPROT)) { (ic->ic_flags & IEEE80211_F_USEPROT)) {
if (ic->ic_protmode == IEEE80211_PROT_CTSONLY) if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
desc->flags |= ZYD_TX_FLAG_CTS_TO_SELF; desc->flags |= ZYD_TX_FLAG_CTS_TO_SELF;
else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS) else if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
desc->flags |= ZYD_TX_FLAG_RTS; desc->flags |= ZYD_TX_FLAG_RTS;
} }
} else } else
desc->flags |= ZYD_TX_FLAG_MULTICAST; desc->flags |= ZYD_TX_FLAG_MULTICAST;
if ((wh->i_fc[0] & if ((wh->i_fc[0] &
(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) == (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_MASK)) ==
(IEEE80211_FC0_TYPE_CTL | IEEE80211_FC0_SUBTYPE_PS_POLL)) (IEEE80211_FC0_TYPE_CTL | IEEE80211_FC0_SUBTYPE_PS_POLL))
desc->flags |= ZYD_TX_FLAG_TYPE(ZYD_TX_TYPE_PS_POLL); desc->flags |= ZYD_TX_FLAG_TYPE(ZYD_TX_TYPE_PS_POLL);
/* actual transmit length (XXX why +10?) */ /* actual transmit length (XXX why +10?) */
pktlen = ZYD_TX_DESC_SIZE + 10; pktlen = ZYD_TX_DESC_SIZE + 10;
if (sc->sc_macrev == ZYD_ZD1211) if (sc->sc_macrev == ZYD_ZD1211)
pktlen += totlen; pktlen += totlen;
desc->pktlen = htole16(pktlen); desc->pktlen = htole16(pktlen);
bits = (rate == 11) ? (totlen * 16) + 10 : bits = (rate->value == 11) ? (totlen * 16) + 10 :
((rate == 22) ? (totlen * 8) + 10 : (totlen * 8)); ((rate->value == 22) ? (totlen * 8) + 10 : (totlen * 8));
desc->plcp_length = htole16(bits / ratediv[phy]); desc->plcp_length = htole16(bits / ratediv[phy]);
desc->plcp_service = 0; desc->plcp_service = 0;
if (rate == 22 && (bits % 11) > 0 && (bits % 11) <= 3) if (rate->value == 22 && (bits % 11) > 0 && (bits % 11) <= 3)
desc->plcp_service |= ZYD_PLCP_LENGEXT; desc->plcp_service |= ZYD_PLCP_LENGEXT;
desc->nextlen = 0; desc->nextlen = 0;
if (ieee80211_radiotap_active_vap(vap)) { if (ieee80211_radiotap_active_vap(vap)) {
struct zyd_tx_radiotap_header *tap = &sc->sc_txtap; struct zyd_tx_radiotap_header *tap = &sc->sc_txtap;
tap->wt_flags = 0; tap->wt_flags = 0;
tap->wt_rate = rate; tap->wt_rate = rate->value;
ieee80211_radiotap_tx(vap, m0); ieee80211_radiotap_tx(vap, m0);
} }
DPRINTF(sc, ZYD_DEBUG_XMIT, DPRINTF(sc, ZYD_DEBUG_XMIT,
"%s: sending data frame len=%zu rate=%u\n", "%s: sending data frame len=%zu rate=%u/%u\n",
device_get_nameunit(sc->sc_dev), (size_t)m0->m_pkthdr.len, device_get_nameunit(sc->sc_dev), (size_t)m0->m_pkthdr.len,
rate); rate->type, rate->value);
STAILQ_INSERT_TAIL(&sc->tx_q, data, next); STAILQ_INSERT_TAIL(&sc->tx_q, data, next);
usbd_transfer_start(sc->sc_xfer[ZYD_BULK_WR]); usbd_transfer_start(sc->sc_xfer[ZYD_BULK_WR]);
return (0); return (0);
} }
static int static int
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