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Extend the beacon code slightly to support AP mode beaconing for the

Browse source 
EDMA HAL hardware.

* The EDMA HAL code assumes the nexttbtt and intval values are in TU/8
  units, rather than TU.  For now, just "hack" around that here, at least
  until I code up something to translate it in the HAL.
* Setup some different TXQ flags for EDMA hardware.
* The EDMA HAL doesn't support setting the first rate series via
  ath_hal_setuptxdesc() - instead, a call to ath_hal_set11nratescenario()
  is always required.  So for now, just do an 11n rate series setup
  for EDMA beacon frames.

This allows my AR9380 to successfully transmit beacon frames.

However, CABQ TX and all normal data frame TX and TX completion is
still not functional and will require some more significant code churn
to make work.
This commit is contained in:
Adrian Chadd 2012-08-11 23:26:19 +00:00
parent e220a13ab9
commit e1252ce1d2
3 changed files with 52 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
sys/dev/ath/if_ath.c
View file

@ -443,7 +443,7 @@ ath_attach(u_int16_t devid, struct ath_softc *sc)
*
* XXX PS-Poll
*/
sc->sc_bhalq = ath_beaconq_setup(ah);
sc->sc_bhalq = ath_beaconq_setup(sc);
if (sc->sc_bhalq == (u_int) -1) {
if_printf(ifp, "unable to setup a beacon xmit queue!\n");
error = EIO;

56
sys/dev/ath/if_ath_beacon.c
View file

@ -108,8 +108,9 @@ __FBSDID("$FreeBSD$");
* Setup a h/w transmit queue for beacons.
*/
int
ath_beaconq_setup(struct ath_hal *ah)
ath_beaconq_setup(struct ath_softc *sc)
{
struct ath_hal *ah = sc->sc_ah;
HAL_TXQ_INFO qi;
memset(&qi, 0, sizeof(qi));
@ -118,6 +119,10 @@ ath_beaconq_setup(struct ath_hal *ah)
qi.tqi_cwmax = HAL_TXQ_USEDEFAULT;
/* NB: for dynamic turbo, don't enable any other interrupts */
qi.tqi_qflags = HAL_TXQ_TXDESCINT_ENABLE;
if (sc->sc_isedma)
qi.tqi_qflags |= HAL_TXQ_TXOKINT_ENABLE |
HAL_TXQ_TXERRINT_ENABLE;
return ath_hal_setuptxqueue(ah, HAL_TX_QUEUE_BEACON, &qi);
}
@ -268,6 +273,7 @@ ath_beacon_setup(struct ath_softc *sc, struct ath_buf *bf)
u_int8_t rix, rate;
HAL_DMA_ADDR bufAddrList[4];
uint32_t segLenList[4];
HAL_11N_RATE_SERIES rc[4];
DPRINTF(sc, ATH_DEBUG_BEACON_PROC, "%s: m %p len %u\n",
__func__, m, m->m_len);
@ -324,6 +330,26 @@ ath_beacon_setup(struct ath_softc *sc, struct ath_buf *bf)
, 0 /* rts/cts rate */
, 0 /* rts/cts duration */
);
/*
* The EDMA HAL currently assumes that _all_ rate control
* settings are done in ath_hal_set11nratescenario(), rather
* than in ath_hal_setuptxdesc().
*/
if (sc->sc_isedma) {
memset(&rc, 0, sizeof(rc));
rc[0].ChSel = sc->sc_txchainmask;
rc[0].Tries = 1;
rc[0].Rate = rt->info[rix].rateCode;
rc[0].RateIndex = rix;
rc[0].tx_power_cap = 0x3f;
rc[0].PktDuration =
ath_hal_computetxtime(ah, rt, roundup(m->m_len, 4),
rix, 0);
ath_hal_set11nratescenario(ah, ds, 0, 0, rc, 4, flags);
}
/* NB: beacon's BufLen must be a multiple of 4 bytes */
segLenList[0] = roundup(m->m_len, 4);
segLenList[1] = segLenList[2] = segLenList[3] = 0;
@ -458,12 +484,15 @@ ath_beacon_proc(void *arg, int pending)
* This should never fail since we check above that no frames
* are still pending on the queue.
*/
if (!ath_hal_stoptxdma(ah, sc->sc_bhalq)) {
DPRINTF(sc, ATH_DEBUG_ANY,
"%s: beacon queue %u did not stop?\n",
__func__, sc->sc_bhalq);
if (! sc->sc_isedma) {
if (!ath_hal_stoptxdma(ah, sc->sc_bhalq)) {
DPRINTF(sc, ATH_DEBUG_ANY,
"%s: beacon queue %u did not stop?\n",
__func__, sc->sc_bhalq);
}
}
/* NB: cabq traffic should already be queued and primed */
ath_hal_puttxbuf(ah, sc->sc_bhalq, bfaddr);
ath_hal_txstart(ah, sc->sc_bhalq);
@ -673,6 +702,7 @@ ath_beacon_config(struct ath_softc *sc, struct ieee80211vap *vap)
struct ieee80211com *ic = sc->sc_ifp->if_l2com;
struct ieee80211_node *ni;
u_int32_t nexttbtt, intval, tsftu;
u_int32_t nexttbtt_u8, intval_u8;
u_int64_t tsf;
if (vap == NULL)
@ -836,7 +866,21 @@ ath_beacon_config(struct ath_softc *sc, struct ieee80211vap *vap)
sc->sc_imask |= HAL_INT_SWBA; /* beacon prepare */
ath_beaconq_config(sc);
}
ath_hal_beaconinit(ah, nexttbtt, intval);
/*
* Now dirty things because for now, the EDMA HAL has
* nexttbtt and intval is TU/8.
*/
if (sc->sc_isedma) {
nexttbtt_u8 = (nexttbtt << 3);
intval_u8 = (intval << 3);
if (intval & HAL_BEACON_ENA)
intval_u8 |= HAL_BEACON_ENA;
if (intval & HAL_BEACON_RESET_TSF)
intval_u8 |= HAL_BEACON_RESET_TSF;
ath_hal_beaconinit(ah, nexttbtt_u8, intval_u8);
} else
ath_hal_beaconinit(ah, nexttbtt, intval);
sc->sc_bmisscount = 0;
ath_hal_intrset(ah, sc->sc_imask);
/*

2
sys/dev/ath/if_ath_beacon.h
View file

@ -33,7 +33,7 @@
extern int ath_bstuck_threshold;
extern int ath_beaconq_setup(struct ath_hal *ah);
extern int ath_beaconq_setup(struct ath_softc *sc);
extern int ath_beaconq_config(struct ath_softc *sc);
extern void ath_beacon_config(struct ath_softc *sc,
struct ieee80211vap *vap);