diff options
Diffstat (limited to 'drivers/net/wireless/ath9k/beacon.c')
| -rw-r--r-- | drivers/net/wireless/ath9k/beacon.c | 130 |
1 files changed, 46 insertions, 84 deletions
diff --git a/drivers/net/wireless/ath9k/beacon.c b/drivers/net/wireless/ath9k/beacon.c index 4dd1c1bda0fb..e80d9b9b61a0 100644 --- a/drivers/net/wireless/ath9k/beacon.c +++ b/drivers/net/wireless/ath9k/beacon.c @@ -14,13 +14,9 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ - /* Implementation of beacon processing. */ - #include "core.h" /* - * Configure parameters for the beacon queue - * * This function will modify certain transmit queue properties depending on * the operating mode of the station (AP or AdHoc). Parameters are AIFS * settings and channel width min/max @@ -54,9 +50,15 @@ static int ath_beaconq_config(struct ath_softc *sc) } } +static void ath_bstuck_process(struct ath_softc *sc) +{ + DPRINTF(sc, ATH_DBG_BEACON, + "%s: stuck beacon; resetting (bmiss count %u)\n", + __func__, sc->sc_bmisscount); + ath_reset(sc, false); +} + /* - * Setup the beacon frame for transmit. - * * Associates the beacon frame buffer with a transmit descriptor. Will set * up all required antenna switch parameters, rate codes, and channel flags. * Beacons are always sent out at the lowest rate, and are not retried. @@ -68,7 +70,7 @@ static void ath_beacon_setup(struct ath_softc *sc, struct ath_hal *ah = sc->sc_ah; struct ath_desc *ds; struct ath9k_11n_rate_series series[4]; - const struct ath9k_rate_table *rt; + struct ath_rate_table *rt; int flags, antenna; u8 rix, rate; int ctsrate = 0; @@ -106,15 +108,15 @@ static void ath_beacon_setup(struct ath_softc *sc, * XXX everything at min xmit rate */ rix = 0; - rt = sc->sc_currates; - rate = rt->info[rix].rateCode; + rt = sc->hw_rate_table[sc->sc_curmode]; + rate = rt->info[rix].ratecode; if (sc->sc_flags & SC_OP_PREAMBLE_SHORT) - rate |= rt->info[rix].shortPreamble; + rate |= rt->info[rix].short_preamble; ath9k_hw_set11n_txdesc(ah, ds, skb->len + FCS_LEN, /* frame length */ ATH9K_PKT_TYPE_BEACON, /* Atheros packet type */ - avp->av_btxctl.txpower, /* txpower XXX */ + MAX_RATE_POWER, /* FIXME */ ATH9K_TXKEYIX_INVALID, /* no encryption */ ATH9K_KEY_TYPE_CLEAR, /* no encryption */ flags /* no ack, @@ -138,26 +140,21 @@ static void ath_beacon_setup(struct ath_softc *sc, ctsrate, ctsduration, series, 4, 0); } -/* - * Generate beacon frame and queue cab data for a vap. - * - * Updates the contents of the beacon frame. It is assumed that the buffer for - * the beacon frame has been allocated in the ATH object, and simply needs to - * be filled for this cycle. Also, any CAB (crap after beacon?) traffic will - * be added to the beacon frame at this point. -*/ +/* Generate beacon frame and queue cab data for a vap */ static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id) { struct ath_buf *bf; struct ath_vap *avp; struct sk_buff *skb; struct ath_txq *cabq; + struct ieee80211_vif *vif; struct ieee80211_tx_info *info; int cabq_depth; - avp = sc->sc_vaps[if_id]; - ASSERT(avp); + vif = sc->sc_vaps[if_id]; + ASSERT(vif); + avp = (void *)vif->drv_priv; cabq = sc->sc_cabq; if (avp->av_bcbuf == NULL) { @@ -174,7 +171,7 @@ static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id) PCI_DMA_TODEVICE); } - skb = ieee80211_beacon_get(sc->hw, avp->av_if_data); + skb = ieee80211_beacon_get(sc->hw, vif); bf->bf_mpdu = skb; if (skb == NULL) return NULL; @@ -196,7 +193,7 @@ static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id) skb->len, PCI_DMA_TODEVICE); - skb = ieee80211_get_buffered_bc(sc->hw, avp->av_if_data); + skb = ieee80211_get_buffered_bc(sc->hw, vif); /* * if the CABQ traffic from previous DTIM is pending and the current @@ -232,7 +229,7 @@ static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id) */ while (skb) { ath_tx_cabq(sc, skb); - skb = ieee80211_get_buffered_bc(sc->hw, avp->av_if_data); + skb = ieee80211_get_buffered_bc(sc->hw, vif); } return bf; @@ -244,13 +241,16 @@ static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id) */ static void ath_beacon_start_adhoc(struct ath_softc *sc, int if_id) { + struct ieee80211_vif *vif; struct ath_hal *ah = sc->sc_ah; struct ath_buf *bf; struct ath_vap *avp; struct sk_buff *skb; - avp = sc->sc_vaps[if_id]; - ASSERT(avp); + vif = sc->sc_vaps[if_id]; + ASSERT(vif); + + avp = (void *)vif->drv_priv; if (avp->av_bcbuf == NULL) { DPRINTF(sc, ATH_DBG_BEACON, "%s: avp=%p av_bcbuf=%p\n", @@ -270,14 +270,6 @@ static void ath_beacon_start_adhoc(struct ath_softc *sc, int if_id) sc->sc_bhalq, ito64(bf->bf_daddr), bf->bf_desc); } -/* - * Setup a h/w transmit queue for beacons. - * - * This function allocates an information structure (struct ath9k_txq_info) - * on the stack, sets some specific parameters (zero out channel width - * min/max, and enable aifs). The info structure does not need to be - * persistant. -*/ int ath_beaconq_setup(struct ath_hal *ah) { struct ath9k_tx_queue_info qi; @@ -290,30 +282,24 @@ int ath_beaconq_setup(struct ath_hal *ah) return ath9k_hw_setuptxqueue(ah, ATH9K_TX_QUEUE_BEACON, &qi); } - -/* - * Allocate and setup an initial beacon frame. - * - * Allocate a beacon state variable for a specific VAP instance created on - * the ATH interface. This routine also calculates the beacon "slot" for - * staggared beacons in the mBSSID case. -*/ int ath_beacon_alloc(struct ath_softc *sc, int if_id) { + struct ieee80211_vif *vif; struct ath_vap *avp; struct ieee80211_hdr *hdr; struct ath_buf *bf; struct sk_buff *skb; __le64 tstamp; - avp = sc->sc_vaps[if_id]; - ASSERT(avp); + vif = sc->sc_vaps[if_id]; + ASSERT(vif); + + avp = (void *)vif->drv_priv; /* Allocate a beacon descriptor if we haven't done so. */ if (!avp->av_bcbuf) { /* Allocate beacon state for hostap/ibss. We know * a buffer is available. */ - avp->av_bcbuf = list_first_entry(&sc->sc_bbuf, struct ath_buf, list); list_del(&avp->av_bcbuf->list); @@ -363,7 +349,7 @@ int ath_beacon_alloc(struct ath_softc *sc, int if_id) * FIXME: Fill avp->av_btxctl.txpower and * avp->av_btxctl.shortPreamble */ - skb = ieee80211_beacon_get(sc->hw, avp->av_if_data); + skb = ieee80211_beacon_get(sc->hw, vif); if (skb == NULL) { DPRINTF(sc, ATH_DBG_BEACON, "%s: cannot get skb\n", __func__); @@ -419,12 +405,6 @@ int ath_beacon_alloc(struct ath_softc *sc, int if_id) return 0; } -/* - * Reclaim beacon resources and return buffer to the pool. - * - * Checks the VAP to put the beacon frame buffer back to the ATH object - * queue, and de-allocates any skbs that were sent as CAB traffic. -*/ void ath_beacon_return(struct ath_softc *sc, struct ath_vap *avp) { if (avp->av_bcbuf != NULL) { @@ -450,13 +430,6 @@ void ath_beacon_return(struct ath_softc *sc, struct ath_vap *avp) } } -/* - * Tasklet for Sending Beacons - * - * Transmit one or more beacon frames at SWBA. Dynamic updates to the frame - * contents are done as needed and the slot time is also adjusted based on - * current state. -*/ void ath9k_beacon_tasklet(unsigned long data) { struct ath_softc *sc = (struct ath_softc *)data; @@ -473,9 +446,7 @@ void ath9k_beacon_tasklet(unsigned long data) if (sc->sc_flags & SC_OP_NO_RESET) { show_cycles = ath9k_hw_GetMibCycleCountsPct(ah, - &rx_clear, - &rx_frame, - &tx_frame); + &rx_clear, &rx_frame, &tx_frame); } /* @@ -597,9 +568,10 @@ void ath9k_beacon_tasklet(unsigned long data) if (sc->sc_updateslot == UPDATE) { sc->sc_updateslot = COMMIT; /* commit next beacon */ sc->sc_slotupdate = slot; - } else if (sc->sc_updateslot == COMMIT && sc->sc_slotupdate == slot) - ath_setslottime(sc); /* commit change to hardware */ - + } else if (sc->sc_updateslot == COMMIT && sc->sc_slotupdate == slot) { + ath9k_hw_setslottime(sc->sc_ah, sc->sc_slottime); + sc->sc_updateslot = OK; + } if (bfaddr != 0) { /* * Stop any current dma and put the new frame(s) on the queue. @@ -622,20 +594,6 @@ void ath9k_beacon_tasklet(unsigned long data) } /* - * Tasklet for Beacon Stuck processing - * - * Processing for Beacon Stuck. - * Basically resets the chip. -*/ -void ath_bstuck_process(struct ath_softc *sc) -{ - DPRINTF(sc, ATH_DBG_BEACON, - "%s: stuck beacon; resetting (bmiss count %u)\n", - __func__, sc->sc_bmisscount); - ath_reset(sc, false); -} - -/* * Configure the beacon and sleep timers. * * When operating as an AP this resets the TSF and sets @@ -652,15 +610,21 @@ void ath_bstuck_process(struct ath_softc *sc) */ void ath_beacon_config(struct ath_softc *sc, int if_id) { + struct ieee80211_vif *vif; struct ath_hal *ah = sc->sc_ah; struct ath_beacon_config conf; + struct ath_vap *avp; enum ath9k_opmode av_opmode; u32 nexttbtt, intval; - if (if_id != ATH_IF_ID_ANY) - av_opmode = sc->sc_vaps[if_id]->av_opmode; - else + if (if_id != ATH_IF_ID_ANY) { + vif = sc->sc_vaps[if_id]; + ASSERT(vif); + avp = (void *)vif->drv_priv; + av_opmode = avp->av_opmode; + } else { av_opmode = sc->sc_ah->ah_opmode; + } memset(&conf, 0, sizeof(struct ath_beacon_config)); @@ -872,8 +836,6 @@ void ath_beacon_config(struct ath_softc *sc, int if_id) } } -/* Function to collect beacon rssi data and resync beacon if necessary */ - void ath_beacon_sync(struct ath_softc *sc, int if_id) { /* |