* 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
struct ath9k_tx_queue_info qi;
ath9k_hw_get_txq_props(ah, sc->sc_bhalq, &qi);
- if (sc->sc_ah->ah_opmode == ATH9K_M_HOSTAP) {
+ if (sc->sc_ah->ah_opmode == NL80211_IFTYPE_AP) {
/* Always burst out beacon and CAB traffic. */
qi.tqi_aifs = 1;
qi.tqi_cwmin = 0;
if (!ath9k_hw_set_txq_props(ah, sc->sc_bhalq, &qi)) {
DPRINTF(sc, ATH_DBG_FATAL,
- "%s: unable to update h/w beacon queue parameters\n",
- __func__);
+ "unable to update h/w beacon queue parameters\n");
return 0;
} else {
ath9k_hw_resettxqueue(ah, sc->sc_bhalq); /* push to h/w */
}
}
+static void ath_bstuck_process(struct ath_softc *sc)
+{
+ DPRINTF(sc, ATH_DBG_BEACON,
+ "stuck beacon; resetting (bmiss count %u)\n",
+ 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.
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;
int ctsduration = 0;
- DPRINTF(sc, ATH_DBG_BEACON, "%s: m %p len %u\n",
- __func__, skb, skb->len);
+ DPRINTF(sc, ATH_DBG_BEACON, "m %p len %u\n", skb, skb->len);
/* setup descriptors */
ds = bf->bf_desc;
flags = ATH9K_TXDESC_NOACK;
- if (sc->sc_ah->ah_opmode == ATH9K_M_IBSS &&
+ if (sc->sc_ah->ah_opmode == NL80211_IFTYPE_ADHOC &&
(ah->ah_caps.hw_caps & ATH9K_HW_CAP_VEOL)) {
ds->ds_link = bf->bf_daddr; /* self-linked */
flags |= ATH9K_TXDESC_VEOL;
* 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,
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) {
- DPRINTF(sc, ATH_DBG_BEACON, "%s: avp=%p av_bcbuf=%p\n",
- __func__, avp, avp->av_bcbuf);
+ DPRINTF(sc, ATH_DBG_BEACON, "avp=%p av_bcbuf=%p\n",
+ avp, avp->av_bcbuf);
return NULL;
}
pci_unmap_single(sc->pdev, bf->bf_dmacontext,
skb->len,
PCI_DMA_TODEVICE);
+ dev_kfree_skb_any(skb);
}
- 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;
pci_map_single(sc->pdev, skb->data,
skb->len,
PCI_DMA_TODEVICE);
+ if (unlikely(pci_dma_mapping_error(sc->pdev, bf->bf_buf_addr))) {
+ dev_kfree_skb_any(skb);
+ bf->bf_mpdu = NULL;
+ DPRINTF(sc, ATH_DBG_CONFIG,
+ "pci_dma_mapping_error() on beaconing\n");
+ return NULL;
+ }
- 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
if (sc->sc_nvaps > 1) {
ath_tx_draintxq(sc, cabq, false);
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: flush previous cabq traffic\n", __func__);
+ "flush previous cabq traffic\n");
}
}
*/
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;
*/
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",
- __func__, avp, avp != NULL ? avp->av_bcbuf : NULL);
+ DPRINTF(sc, ATH_DBG_BEACON, "avp=%p av_bcbuf=%p\n",
+ avp, avp != NULL ? avp->av_bcbuf : NULL);
return;
}
bf = avp->av_bcbuf;
/* NB: caller is known to have already stopped tx dma */
ath9k_hw_puttxbuf(ah, sc->sc_bhalq, bf->bf_daddr);
ath9k_hw_txstart(ah, sc->sc_bhalq);
- DPRINTF(sc, ATH_DBG_BEACON, "%s: TXDP%u = %llx (%p)\n", __func__,
+ DPRINTF(sc, ATH_DBG_BEACON, "TXDP%u = %llx (%p)\n",
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;
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);
- if (sc->sc_ah->ah_opmode == ATH9K_M_HOSTAP ||
+ if (sc->sc_ah->ah_opmode == NL80211_IFTYPE_AP ||
!(sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_VEOL)) {
int slot;
/*
* 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__);
+ DPRINTF(sc, ATH_DBG_BEACON, "cannot get skb\n");
return -ENOMEM;
}
val = cpu_to_le64(tsfadjust << 10); /* TU->TSF */
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: %s beacons, bslot %d intval %u tsfadjust %llu\n",
- __func__, "stagger",
+ "stagger beacons, bslot %d intval %u tsfadjust %llu\n",
avp->av_bslot, intval, (unsigned long long)tsfadjust);
hdr = (struct ieee80211_hdr *)skb->data;
memcpy(&hdr[1], &val, sizeof(val));
}
+ bf->bf_mpdu = skb;
bf->bf_buf_addr = bf->bf_dmacontext =
pci_map_single(sc->pdev, skb->data,
skb->len,
PCI_DMA_TODEVICE);
- bf->bf_mpdu = skb;
+ if (unlikely(pci_dma_mapping_error(sc->pdev, bf->bf_buf_addr))) {
+ dev_kfree_skb_any(skb);
+ bf->bf_mpdu = NULL;
+ DPRINTF(sc, ATH_DBG_CONFIG,
+ "pci_dma_mapping_error() on beacon alloc\n");
+ return -ENOMEM;
+ }
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) {
}
}
-/*
- * 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;
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);
}
/*
if (sc->sc_bmisscount < BSTUCK_THRESH) {
if (sc->sc_flags & SC_OP_NO_RESET) {
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: missed %u consecutive beacons\n",
- __func__, sc->sc_bmisscount);
+ "missed %u consecutive beacons\n",
+ sc->sc_bmisscount);
if (show_cycles) {
/*
* Display cycle counter stats from HW
* to aide in debug of stickiness.
*/
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: busy times: rx_clear=%d, "
+ "busy times: rx_clear=%d, "
"rx_frame=%d, tx_frame=%d\n",
- __func__, rx_clear, rx_frame,
+ rx_clear, rx_frame,
tx_frame);
} else {
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: unable to obtain "
- "busy times\n", __func__);
+ "unable to obtain "
+ "busy times\n");
}
} else {
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: missed %u consecutive beacons\n",
- __func__, sc->sc_bmisscount);
+ "missed %u consecutive beacons\n",
+ sc->sc_bmisscount);
}
} else if (sc->sc_bmisscount >= BSTUCK_THRESH) {
if (sc->sc_flags & SC_OP_NO_RESET) {
if (sc->sc_bmisscount == BSTUCK_THRESH) {
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: beacon is officially "
- "stuck\n", __func__);
- ath9k_hw_dmaRegDump(ah);
+ "beacon is officially "
+ "stuck\n");
}
} else {
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: beacon is officially stuck\n",
- __func__);
+ "beacon is officially stuck\n");
ath_bstuck_process(sc);
}
}
if (sc->sc_bmisscount != 0) {
if (sc->sc_flags & SC_OP_NO_RESET) {
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: resume beacon xmit after %u misses\n",
- __func__, sc->sc_bmisscount);
+ "resume beacon xmit after %u misses\n",
+ sc->sc_bmisscount);
} else {
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: resume beacon xmit after %u misses\n",
- __func__, sc->sc_bmisscount);
+ "resume beacon xmit after %u misses\n",
+ sc->sc_bmisscount);
}
sc->sc_bmisscount = 0;
}
if_id = sc->sc_bslot[(slot + 1) % ATH_BCBUF];
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: slot %d [tsf %llu tsftu %u intval %u] if_id %d\n",
- __func__, slot, (unsigned long long)tsf, tsftu,
+ "slot %d [tsf %llu tsftu %u intval %u] if_id %d\n",
+ slot, (unsigned long long)tsf, tsftu,
intval, if_id);
bfaddr = 0;
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.
*/
if (!ath9k_hw_stoptxdma(ah, sc->sc_bhalq)) {
DPRINTF(sc, ATH_DBG_FATAL,
- "%s: beacon queue %u did not stop?\n",
- __func__, sc->sc_bhalq);
+ "beacon queue %u did not stop?\n", sc->sc_bhalq);
/* NB: the HAL still stops DMA, so proceed */
}
}
}
-/*
- * 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.
*
*/
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;
- enum ath9k_opmode av_opmode;
+ struct ath_vap *avp;
+ enum nl80211_iftype opmode;
u32 nexttbtt, intval;
- if (if_id != ATH_IF_ID_ANY)
- av_opmode = sc->sc_vaps[if_id]->av_opmode;
- else
- av_opmode = sc->sc_ah->ah_opmode;
+ if (if_id != ATH_IF_ID_ANY) {
+ vif = sc->sc_vaps[if_id];
+ ASSERT(vif);
+ avp = (void *)vif->drv_priv;
+ opmode = avp->av_opmode;
+ } else {
+ opmode = sc->sc_ah->ah_opmode;
+ }
memset(&conf, 0, sizeof(struct ath_beacon_config));
nexttbtt = TSF_TO_TU(sc->bc_tstamp >> 32, sc->bc_tstamp);
/* XXX conditionalize multi-bss support? */
- if (sc->sc_ah->ah_opmode == ATH9K_M_HOSTAP) {
+ if (sc->sc_ah->ah_opmode == NL80211_IFTYPE_AP) {
/*
* For multi-bss ap support beacons are either staggered
* evenly over N slots or burst together. For the former
else if (intval) /* NB: can be 0 for monitor mode */
nexttbtt = roundup(nexttbtt, intval);
- DPRINTF(sc, ATH_DBG_BEACON, "%s: nexttbtt %u intval %u (%u)\n",
- __func__, nexttbtt, intval, conf.beacon_interval);
+ DPRINTF(sc, ATH_DBG_BEACON, "nexttbtt %u intval %u (%u)\n",
+ nexttbtt, intval, conf.beacon_interval);
- /* Check for ATH9K_M_HOSTAP and sc_nostabeacons for WDS client */
- if (sc->sc_ah->ah_opmode == ATH9K_M_STA) {
+ /* Check for NL80211_IFTYPE_AP and sc_nostabeacons for WDS client */
+ if (sc->sc_ah->ah_opmode == NL80211_IFTYPE_STATION) {
struct ath9k_beacon_state bs;
u64 tsf;
u32 tsftu;
bs.bs_sleepduration = bs.bs_dtimperiod;
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: tsf %llu "
+ "tsf %llu "
"tsf:tu %u "
"intval %u "
"nexttbtt %u "
"maxdur %u "
"next %u "
"timoffset %u\n",
- __func__,
(unsigned long long)tsf, tsftu,
bs.bs_intval,
bs.bs_nexttbtt,
ath9k_hw_set_interrupts(ah, 0);
if (nexttbtt == intval)
intval |= ATH9K_BEACON_RESET_TSF;
- if (sc->sc_ah->ah_opmode == ATH9K_M_IBSS) {
+ if (sc->sc_ah->ah_opmode == NL80211_IFTYPE_ADHOC) {
/*
* Pull nexttbtt forward to reflect the current
* TSF
}
#undef FUDGE
DPRINTF(sc, ATH_DBG_BEACON,
- "%s: IBSS nexttbtt %u intval %u (%u)\n",
- __func__, nexttbtt,
+ "IBSS nexttbtt %u intval %u (%u)\n",
+ nexttbtt,
intval & ~ATH9K_BEACON_RESET_TSF,
conf.beacon_interval);
if (!(ah->ah_caps.hw_caps & ATH9K_HW_CAP_VEOL))
sc->sc_imask |= ATH9K_INT_SWBA;
ath_beaconq_config(sc);
- } else if (sc->sc_ah->ah_opmode == ATH9K_M_HOSTAP) {
+ } else if (sc->sc_ah->ah_opmode == NL80211_IFTYPE_AP) {
/*
* In AP mode we enable the beacon timers and
* SWBA interrupts to prepare beacon frames.
* When using a self-linked beacon descriptor in
* ibss mode load it once here.
*/
- if (sc->sc_ah->ah_opmode == ATH9K_M_IBSS &&
+ if (sc->sc_ah->ah_opmode == NL80211_IFTYPE_ADHOC &&
(ah->ah_caps.hw_caps & ATH9K_HW_CAP_VEOL))
ath_beacon_start_adhoc(sc, 0);
}
}
-/* Function to collect beacon rssi data and resync beacon if necessary */
-
void ath_beacon_sync(struct ath_softc *sc, int if_id)
{
/*
git.openpandora.org / pandora-kernel.git / blobdiff