aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/ath9k/beacon.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/ath9k/beacon.c')
-rw-r--r--drivers/net/wireless/ath9k/beacon.c383
1 files changed, 138 insertions, 245 deletions
diff --git a/drivers/net/wireless/ath9k/beacon.c b/drivers/net/wireless/ath9k/beacon.c
index 00a0eaa..9e15c30 100644
--- a/drivers/net/wireless/ath9k/beacon.c
+++ b/drivers/net/wireless/ath9k/beacon.c
@@ -16,7 +16,6 @@
/* Implementation of beacon processing. */
-#include <asm/unaligned.h>
#include "core.h"
/*
@@ -26,14 +25,13 @@
* the operating mode of the station (AP or AdHoc). Parameters are AIFS
* settings and channel width min/max
*/
-
static int ath_beaconq_config(struct ath_softc *sc)
{
struct ath_hal *ah = sc->sc_ah;
struct ath9k_tx_queue_info qi;
ath9k_hw_get_txq_props(ah, sc->sc_bhalq, &qi);
- if (sc->sc_opmode == ATH9K_M_HOSTAP) {
+ if (sc->sc_ah->ah_opmode == ATH9K_M_HOSTAP) {
/* Always burst out beacon and CAB traffic. */
qi.tqi_aifs = 1;
qi.tqi_cwmin = 0;
@@ -63,19 +61,18 @@ static int ath_beaconq_config(struct ath_softc *sc)
* up all required antenna switch parameters, rate codes, and channel flags.
* Beacons are always sent out at the lowest rate, and are not retried.
*/
-
static void ath_beacon_setup(struct ath_softc *sc,
- struct ath_vap *avp, struct ath_buf *bf)
+ struct ath_vap *avp, struct ath_buf *bf)
{
struct sk_buff *skb = (struct sk_buff *)bf->bf_mpdu;
struct ath_hal *ah = sc->sc_ah;
struct ath_desc *ds;
- int flags, antenna;
+ struct ath9k_11n_rate_series series[4];
const struct ath9k_rate_table *rt;
+ int flags, antenna;
u8 rix, rate;
int ctsrate = 0;
int ctsduration = 0;
- struct ath9k_11n_rate_series series[4];
DPRINTF(sc, ATH_DBG_BEACON, "%s: m %p len %u\n",
__func__, skb, skb->len);
@@ -85,7 +82,7 @@ static void ath_beacon_setup(struct ath_softc *sc,
flags = ATH9K_TXDESC_NOACK;
- if (sc->sc_opmode == ATH9K_M_IBSS &&
+ if (sc->sc_ah->ah_opmode == ATH9K_M_IBSS &&
(ah->ah_caps.hw_caps & ATH9K_HW_CAP_VEOL)) {
ds->ds_link = bf->bf_daddr; /* self-linked */
flags |= ATH9K_TXDESC_VEOL;
@@ -111,27 +108,28 @@ static void ath_beacon_setup(struct ath_softc *sc,
rix = 0;
rt = sc->sc_currates;
rate = rt->info[rix].rateCode;
- if (sc->sc_flags & ATH_PREAMBLE_SHORT)
+ if (sc->sc_flags & SC_OP_PREAMBLE_SHORT)
rate |= rt->info[rix].shortPreamble;
- 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 */
- , ATH9K_TXKEYIX_INVALID /* no encryption */
- , ATH9K_KEY_TYPE_CLEAR /* no encryption */
- , flags /* no ack, veol for beacons */
+ 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 */
+ ATH9K_TXKEYIX_INVALID, /* no encryption */
+ ATH9K_KEY_TYPE_CLEAR, /* no encryption */
+ flags /* no ack,
+ veol for beacons */
);
/* NB: beacon's BufLen must be a multiple of 4 bytes */
- ath9k_hw_filltxdesc(ah, ds
- , roundup(skb->len, 4) /* buffer length */
- , true /* first segment */
- , true /* last segment */
- , ds /* first descriptor */
+ ath9k_hw_filltxdesc(ah, ds,
+ roundup(skb->len, 4), /* buffer length */
+ true, /* first segment */
+ true, /* last segment */
+ ds /* first descriptor */
);
- memzero(series, sizeof(struct ath9k_11n_rate_series) * 4);
+ memset(series, 0, sizeof(struct ath9k_11n_rate_series) * 4);
series[0].Tries = 1;
series[0].Rate = rate;
series[0].ChSel = sc->sc_tx_chainmask;
@@ -140,55 +138,6 @@ static void ath_beacon_setup(struct ath_softc *sc,
ctsrate, ctsduration, series, 4, 0);
}
-/* Move everything from the vap's mcast queue to the hardware cab queue.
- * Caller must hold mcasq lock and cabq lock
- * XXX MORE_DATA bit?
- */
-static void empty_mcastq_into_cabq(struct ath_hal *ah,
- struct ath_txq *mcastq, struct ath_txq *cabq)
-{
- struct ath_buf *bfmcast;
-
- BUG_ON(list_empty(&mcastq->axq_q));
-
- bfmcast = list_first_entry(&mcastq->axq_q, struct ath_buf, list);
-
- /* link the descriptors */
- if (!cabq->axq_link)
- ath9k_hw_puttxbuf(ah, cabq->axq_qnum, bfmcast->bf_daddr);
- else
- *cabq->axq_link = bfmcast->bf_daddr;
-
- /* append the private vap mcast list to the cabq */
-
- cabq->axq_depth += mcastq->axq_depth;
- cabq->axq_totalqueued += mcastq->axq_totalqueued;
- cabq->axq_linkbuf = mcastq->axq_linkbuf;
- cabq->axq_link = mcastq->axq_link;
- list_splice_tail_init(&mcastq->axq_q, &cabq->axq_q);
- mcastq->axq_depth = 0;
- mcastq->axq_totalqueued = 0;
- mcastq->axq_linkbuf = NULL;
- mcastq->axq_link = NULL;
-}
-
-/* This is only run at DTIM. We move everything from the vap's mcast queue
- * to the hardware cab queue. Caller must hold the mcastq lock. */
-static void trigger_mcastq(struct ath_hal *ah,
- struct ath_txq *mcastq, struct ath_txq *cabq)
-{
- spin_lock_bh(&cabq->axq_lock);
-
- if (!list_empty(&mcastq->axq_q))
- empty_mcastq_into_cabq(ah, mcastq, cabq);
-
- /* cabq is gated by beacon so it is safe to start here */
- if (!list_empty(&cabq->axq_q))
- ath9k_hw_txstart(ah, cabq->axq_qnum);
-
- spin_unlock_bh(&cabq->axq_lock);
-}
-
/*
* Generate beacon frame and queue cab data for a vap.
*
@@ -199,39 +148,36 @@ static void trigger_mcastq(struct ath_hal *ah,
*/
static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id)
{
- struct ath_hal *ah = sc->sc_ah;
struct ath_buf *bf;
struct ath_vap *avp;
struct sk_buff *skb;
- int cabq_depth;
- int mcastq_depth;
- int is_beacon_dtim = 0;
- unsigned int curlen;
struct ath_txq *cabq;
- struct ath_txq *mcastq;
struct ieee80211_tx_info *info;
+ int cabq_depth;
+
avp = sc->sc_vaps[if_id];
+ ASSERT(avp);
- mcastq = &avp->av_mcastq;
cabq = sc->sc_cabq;
- ASSERT(avp);
-
if (avp->av_bcbuf == NULL) {
DPRINTF(sc, ATH_DBG_BEACON, "%s: avp=%p av_bcbuf=%p\n",
__func__, avp, avp->av_bcbuf);
return NULL;
}
+
bf = avp->av_bcbuf;
- skb = (struct sk_buff *) bf->bf_mpdu;
+ skb = (struct sk_buff *)bf->bf_mpdu;
+ if (skb) {
+ pci_unmap_single(sc->pdev, bf->bf_dmacontext,
+ skb_end_pointer(skb) - skb->head,
+ PCI_DMA_TODEVICE);
+ }
- /*
- * Update dynamic beacon contents. If this returns
- * non-zero then we need to remap the memory because
- * the beacon frame changed size (probably because
- * of the TIM bitmap).
- */
- curlen = skb->len;
+ skb = ieee80211_beacon_get(sc->hw, avp->av_if_data);
+ bf->bf_mpdu = skb;
+ if (skb == NULL)
+ return NULL;
info = IEEE80211_SKB_CB(skb);
if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
@@ -239,29 +185,18 @@ static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id)
* TODO: make sure the seq# gets assigned properly (vs. other
* TX frames)
*/
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
sc->seq_no += 0x10;
hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
hdr->seq_ctrl |= cpu_to_le16(sc->seq_no);
}
- /* XXX: spin_lock_bh should not be used here, but sparse bitches
- * otherwise. We should fix sparse :) */
- spin_lock_bh(&mcastq->axq_lock);
- mcastq_depth = avp->av_mcastq.axq_depth;
-
- if (ath_update_beacon(sc, if_id, &avp->av_boff, skb, mcastq_depth) ==
- 1) {
- ath_skb_unmap_single(sc, skb, PCI_DMA_TODEVICE,
- get_dma_mem_context(bf, bf_dmacontext));
- bf->bf_buf_addr = ath_skb_map_single(sc, skb, PCI_DMA_TODEVICE,
- get_dma_mem_context(bf, bf_dmacontext));
- } else {
- pci_dma_sync_single_for_cpu(sc->pdev,
- bf->bf_buf_addr,
- skb_tailroom(skb),
- PCI_DMA_TODEVICE);
- }
+ bf->bf_buf_addr = bf->bf_dmacontext =
+ pci_map_single(sc->pdev, skb->data,
+ skb_end_pointer(skb) - skb->head,
+ PCI_DMA_TODEVICE);
+
+ skb = ieee80211_get_buffered_bc(sc->hw, avp->av_if_data);
/*
* if the CABQ traffic from previous DTIM is pending and the current
@@ -275,9 +210,7 @@ static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id)
cabq_depth = cabq->axq_depth;
spin_unlock_bh(&cabq->axq_lock);
- is_beacon_dtim = avp->av_boff.bo_tim[4] & 1;
-
- if (mcastq_depth && is_beacon_dtim && cabq_depth) {
+ if (skb && cabq_depth) {
/*
* Unlock the cabq lock as ath_tx_draintxq acquires
* the lock again which is a common function and that
@@ -297,10 +230,11 @@ static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id)
* Enable the CAB queue before the beacon queue to
* insure cab frames are triggered by this beacon.
*/
- if (is_beacon_dtim)
- trigger_mcastq(ah, mcastq, cabq);
+ while (skb) {
+ ath_tx_cabq(sc, skb);
+ skb = ieee80211_get_buffered_bc(sc->hw, avp->av_if_data);
+ }
- spin_unlock_bh(&mcastq->axq_lock);
return bf;
}
@@ -308,7 +242,6 @@ static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id)
* Startup beacon transmission for adhoc mode when they are sent entirely
* by the hardware using the self-linked descriptor + veol trick.
*/
-
static void ath_beacon_start_adhoc(struct ath_softc *sc, int if_id)
{
struct ath_hal *ah = sc->sc_ah;
@@ -345,12 +278,11 @@ static void ath_beacon_start_adhoc(struct ath_softc *sc, int if_id)
* 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;
- memzero(&qi, sizeof(qi));
+ memset(&qi, 0, sizeof(qi));
qi.tqi_aifs = 1;
qi.tqi_cwmin = 0;
qi.tqi_cwmax = 0;
@@ -366,29 +298,27 @@ int ath_beaconq_setup(struct ath_hal *ah)
* 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 ath_vap *avp;
- struct ieee80211_hdr *wh;
+ struct ieee80211_hdr *hdr;
struct ath_buf *bf;
struct sk_buff *skb;
+ __le64 tstamp;
avp = sc->sc_vaps[if_id];
ASSERT(avp);
/* 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.
- */
+ /* 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);
+ struct ath_buf, list);
list_del(&avp->av_bcbuf->list);
- if (sc->sc_opmode == ATH9K_M_HOSTAP ||
+ if (sc->sc_ah->ah_opmode == ATH9K_M_HOSTAP ||
!(sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_VEOL)) {
int slot;
/*
@@ -421,17 +351,16 @@ int ath_beacon_alloc(struct ath_softc *sc, int if_id)
bf = avp->av_bcbuf;
if (bf->bf_mpdu != NULL) {
skb = (struct sk_buff *)bf->bf_mpdu;
- ath_skb_unmap_single(sc, skb, PCI_DMA_TODEVICE,
- get_dma_mem_context(bf, bf_dmacontext));
+ pci_unmap_single(sc->pdev, bf->bf_dmacontext,
+ skb_end_pointer(skb) - skb->head,
+ PCI_DMA_TODEVICE);
dev_kfree_skb_any(skb);
bf->bf_mpdu = NULL;
}
/*
- * NB: the beacon data buffer must be 32-bit aligned;
- * we assume the wbuf routines will return us something
- * with this alignment (perhaps should assert).
- * FIXME: Fill avp->av_boff.bo_tim,avp->av_btxctl.txpower and
+ * NB: the beacon data buffer must be 32-bit aligned.
+ * FIXME: Fill avp->av_btxctl.txpower and
* avp->av_btxctl.shortPreamble
*/
skb = ieee80211_beacon_get(sc->hw, avp->av_if_data);
@@ -441,6 +370,9 @@ int ath_beacon_alloc(struct ath_softc *sc, int if_id)
return -ENOMEM;
}
+ tstamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp;
+ sc->bc_tstamp = le64_to_cpu(tstamp);
+
/*
* Calculate a TSF adjustment factor required for
* staggered beacons. Note that we assume the format
@@ -452,9 +384,8 @@ int ath_beacon_alloc(struct ath_softc *sc, int if_id)
__le64 val;
int intval;
- /* FIXME: Use default value for now: Sujith */
-
- intval = ATH_DEFAULT_BINTVAL;
+ intval = sc->hw->conf.beacon_int ?
+ sc->hw->conf.beacon_int : ATH_DEFAULT_BINTVAL;
/*
* The beacon interval is in TU's; the TSF in usecs.
@@ -475,12 +406,14 @@ int ath_beacon_alloc(struct ath_softc *sc, int if_id)
__func__, "stagger",
avp->av_bslot, intval, (unsigned long long)tsfadjust);
- wh = (struct ieee80211_hdr *)skb->data;
- memcpy(&wh[1], &val, sizeof(val));
+ hdr = (struct ieee80211_hdr *)skb->data;
+ memcpy(&hdr[1], &val, sizeof(val));
}
- bf->bf_buf_addr = ath_skb_map_single(sc, skb, PCI_DMA_TODEVICE,
- get_dma_mem_context(bf, bf_dmacontext));
+ bf->bf_buf_addr = bf->bf_dmacontext =
+ pci_map_single(sc->pdev, skb->data,
+ skb_end_pointer(skb) - skb->head,
+ PCI_DMA_TODEVICE);
bf->bf_mpdu = skb;
return 0;
@@ -490,9 +423,8 @@ int ath_beacon_alloc(struct ath_softc *sc, int if_id)
* 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 wbuf frames that were sent as CAB traffic.
+ * 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) {
@@ -506,8 +438,9 @@ void ath_beacon_return(struct ath_softc *sc, struct ath_vap *avp)
bf = avp->av_bcbuf;
if (bf->bf_mpdu != NULL) {
struct sk_buff *skb = (struct sk_buff *)bf->bf_mpdu;
- ath_skb_unmap_single(sc, skb, PCI_DMA_TODEVICE,
- get_dma_mem_context(bf, bf_dmacontext));
+ pci_unmap_single(sc->pdev, bf->bf_dmacontext,
+ skb_end_pointer(skb) - skb->head,
+ PCI_DMA_TODEVICE);
dev_kfree_skb_any(skb);
bf->bf_mpdu = NULL;
}
@@ -518,44 +451,14 @@ void ath_beacon_return(struct ath_softc *sc, struct ath_vap *avp)
}
/*
- * Reclaim beacon resources and return buffer to the pool.
- *
- * This function will free any wbuf frames that are still attached to the
- * beacon buffers in the ATH object. Note that this does not de-allocate
- * any wbuf objects that are in the transmit queue and have not yet returned
- * to the ATH object.
-*/
-
-void ath_beacon_free(struct ath_softc *sc)
-{
- struct ath_buf *bf;
-
- list_for_each_entry(bf, &sc->sc_bbuf, list) {
- if (bf->bf_mpdu != NULL) {
- struct sk_buff *skb = (struct sk_buff *) bf->bf_mpdu;
- ath_skb_unmap_single(sc, skb, PCI_DMA_TODEVICE,
- get_dma_mem_context(bf, bf_dmacontext));
- dev_kfree_skb_any(skb);
- bf->bf_mpdu = 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.
- *
- * This tasklet is not scheduled, it's called in ISR context.
*/
-
void ath9k_beacon_tasklet(unsigned long data)
{
-#define TSF_TO_TU(_h,_l) \
- ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
-
struct ath_softc *sc = (struct ath_softc *)data;
struct ath_hal *ah = sc->sc_ah;
struct ath_buf *bf = NULL;
@@ -568,7 +471,7 @@ void ath9k_beacon_tasklet(unsigned long data)
u32 tsftu;
u16 intval;
- if (sc->sc_noreset) {
+ if (sc->sc_flags & SC_OP_NO_RESET) {
show_cycles = ath9k_hw_GetMibCycleCountsPct(ah,
&rx_clear,
&rx_frame,
@@ -581,6 +484,8 @@ void ath9k_beacon_tasklet(unsigned long data)
* and wait for the next. Missed beacons indicate
* a problem and should not occur. If we miss too
* many consecutive beacons reset the device.
+ *
+ * FIXME: Clean up this mess !!
*/
if (ath9k_hw_numtxpending(ah, sc->sc_bhalq) != 0) {
sc->sc_bmisscount++;
@@ -590,25 +495,22 @@ void ath9k_beacon_tasklet(unsigned long data)
* (in that layer).
*/
if (sc->sc_bmisscount < BSTUCK_THRESH) {
- if (sc->sc_noreset) {
+ if (sc->sc_flags & SC_OP_NO_RESET) {
DPRINTF(sc, ATH_DBG_BEACON,
"%s: missed %u consecutive beacons\n",
__func__, sc->sc_bmisscount);
if (show_cycles) {
/*
- * Display cycle counter stats
- * from HW to aide in debug of
- * stickiness.
+ * Display cycle counter stats from HW
+ * to aide in debug of stickiness.
*/
- DPRINTF(sc,
- ATH_DBG_BEACON,
+ DPRINTF(sc, ATH_DBG_BEACON,
"%s: busy times: rx_clear=%d, "
"rx_frame=%d, tx_frame=%d\n",
__func__, rx_clear, rx_frame,
tx_frame);
} else {
- DPRINTF(sc,
- ATH_DBG_BEACON,
+ DPRINTF(sc, ATH_DBG_BEACON,
"%s: unable to obtain "
"busy times\n", __func__);
}
@@ -618,10 +520,9 @@ void ath9k_beacon_tasklet(unsigned long data)
__func__, sc->sc_bmisscount);
}
} else if (sc->sc_bmisscount >= BSTUCK_THRESH) {
- if (sc->sc_noreset) {
+ if (sc->sc_flags & SC_OP_NO_RESET) {
if (sc->sc_bmisscount == BSTUCK_THRESH) {
- DPRINTF(sc,
- ATH_DBG_BEACON,
+ DPRINTF(sc, ATH_DBG_BEACON,
"%s: beacon is officially "
"stuck\n", __func__);
ath9k_hw_dmaRegDump(ah);
@@ -633,13 +534,12 @@ void ath9k_beacon_tasklet(unsigned long data)
ath_bstuck_process(sc);
}
}
-
return;
}
+
if (sc->sc_bmisscount != 0) {
- if (sc->sc_noreset) {
- DPRINTF(sc,
- ATH_DBG_BEACON,
+ 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);
} else {
@@ -656,17 +556,19 @@ void ath9k_beacon_tasklet(unsigned long data)
* on the tsf to safeguard against missing an swba.
*/
- /* FIXME: Use default value for now - Sujith */
- intval = ATH_DEFAULT_BINTVAL;
+ intval = sc->hw->conf.beacon_int ?
+ sc->hw->conf.beacon_int : ATH_DEFAULT_BINTVAL;
tsf = ath9k_hw_gettsf64(ah);
tsftu = TSF_TO_TU(tsf>>32, tsf);
slot = ((tsftu % intval) * ATH_BCBUF) / intval;
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,
- intval, if_id);
+ "%s: slot %d [tsf %llu tsftu %u intval %u] if_id %d\n",
+ __func__, slot, (unsigned long long)tsf, tsftu,
+ intval, if_id);
+
bfaddr = 0;
if (if_id != ATH_IF_ID_ANY) {
bf = ath_beacon_generate(sc, if_id);
@@ -717,22 +619,20 @@ void ath9k_beacon_tasklet(unsigned long data)
sc->ast_be_xmit += bc; /* XXX per-vap? */
}
-#undef TSF_TO_TU
}
/*
* Tasklet for Beacon Stuck processing
*
* Processing for Beacon Stuck.
- * Basically calls the ath_internal_reset function to reset the chip.
+ * 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_internal_reset(sc);
+ ath_reset(sc, false);
}
/*
@@ -750,40 +650,32 @@ void ath_bstuck_process(struct ath_softc *sc)
* interrupt when we stop seeing beacons from the AP
* we've associated with.
*/
-
void ath_beacon_config(struct ath_softc *sc, int if_id)
{
-#define TSF_TO_TU(_h,_l) \
- ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
struct ath_hal *ah = sc->sc_ah;
- u32 nexttbtt, intval;
struct ath_beacon_config conf;
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
- av_opmode = sc->sc_opmode;
+ av_opmode = sc->sc_ah->ah_opmode;
- memzero(&conf, sizeof(struct ath_beacon_config));
+ memset(&conf, 0, sizeof(struct ath_beacon_config));
- /* FIXME: Use default values for now - Sujith */
- /* Query beacon configuration first */
- /*
- * Protocol stack doesn't support dynamic beacon configuration,
- * use default configurations.
- */
- conf.beacon_interval = ATH_DEFAULT_BINTVAL;
+ conf.beacon_interval = sc->hw->conf.beacon_int ?
+ sc->hw->conf.beacon_int : ATH_DEFAULT_BINTVAL;
conf.listen_interval = 1;
conf.dtim_period = conf.beacon_interval;
conf.dtim_count = 1;
conf.bmiss_timeout = ATH_DEFAULT_BMISS_LIMIT * conf.beacon_interval;
/* extract tstamp from last beacon and convert to TU */
- nexttbtt = TSF_TO_TU(get_unaligned_le32(conf.u.last_tstamp + 4),
- get_unaligned_le32(conf.u.last_tstamp));
+ nexttbtt = TSF_TO_TU(sc->bc_tstamp >> 32, sc->bc_tstamp);
+
/* XXX conditionalize multi-bss support? */
- if (sc->sc_opmode == ATH9K_M_HOSTAP) {
+ if (sc->sc_ah->ah_opmode == ATH9K_M_HOSTAP) {
/*
* For multi-bss ap support beacons are either staggered
* evenly over N slots or burst together. For the former
@@ -797,14 +689,16 @@ void ath_beacon_config(struct ath_softc *sc, int if_id)
intval = conf.beacon_interval & ATH9K_BEACON_PERIOD;
}
- if (nexttbtt == 0) /* e.g. for ap mode */
+ if (nexttbtt == 0) /* e.g. for ap mode */
nexttbtt = intval;
- else if (intval) /* NB: can be 0 for monitor mode */
+ 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);
+
/* Check for ATH9K_M_HOSTAP and sc_nostabeacons for WDS client */
- if (sc->sc_opmode == ATH9K_M_STA) {
+ if (sc->sc_ah->ah_opmode == ATH9K_M_STA) {
struct ath9k_beacon_state bs;
u64 tsf;
u32 tsftu;
@@ -816,19 +710,19 @@ void ath_beacon_config(struct ath_softc *sc, int if_id)
* last beacon we received (which may be none).
*/
dtimperiod = conf.dtim_period;
- if (dtimperiod <= 0) /* NB: 0 if not known */
+ if (dtimperiod <= 0) /* NB: 0 if not known */
dtimperiod = 1;
dtimcount = conf.dtim_count;
- if (dtimcount >= dtimperiod) /* NB: sanity check */
- dtimcount = 0; /* XXX? */
- cfpperiod = 1; /* NB: no PCF support yet */
+ if (dtimcount >= dtimperiod) /* NB: sanity check */
+ dtimcount = 0;
+ cfpperiod = 1; /* NB: no PCF support yet */
cfpcount = 0;
sleepduration = conf.listen_interval * intval;
if (sleepduration <= 0)
sleepduration = intval;
-#define FUDGE 2
+#define FUDGE 2
/*
* Pull nexttbtt forward to reflect the current
* TSF and calculate dtim+cfp state for the result.
@@ -844,7 +738,7 @@ void ath_beacon_config(struct ath_softc *sc, int if_id)
}
} while (nexttbtt < tsftu);
#undef FUDGE
- memzero(&bs, sizeof(bs));
+ memset(&bs, 0, sizeof(bs));
bs.bs_intval = intval;
bs.bs_nexttbtt = nexttbtt;
bs.bs_dtimperiod = dtimperiod*intval;
@@ -852,6 +746,7 @@ void ath_beacon_config(struct ath_softc *sc, int if_id)
bs.bs_cfpperiod = cfpperiod*bs.bs_dtimperiod;
bs.bs_cfpnext = bs.bs_nextdtim + cfpcount*bs.bs_dtimperiod;
bs.bs_cfpmaxduration = 0;
+
/*
* Calculate the number of consecutive beacons to miss
* before taking a BMISS interrupt. The configuration
@@ -860,9 +755,8 @@ void ath_beacon_config(struct ath_softc *sc, int if_id)
* result to at most 15 beacons.
*/
if (sleepduration > intval) {
- bs.bs_bmissthreshold =
- conf.listen_interval *
- ATH_DEFAULT_BMISS_LIMIT / 2;
+ bs.bs_bmissthreshold = conf.listen_interval *
+ ATH_DEFAULT_BMISS_LIMIT / 2;
} else {
bs.bs_bmissthreshold =
DIV_ROUND_UP(conf.bmiss_timeout, intval);
@@ -882,8 +776,8 @@ void ath_beacon_config(struct ath_softc *sc, int if_id)
* XXX fixed at 100ms
*/
- bs.bs_sleepduration =
- roundup(IEEE80211_MS_TO_TU(100), sleepduration);
+ bs.bs_sleepduration = roundup(IEEE80211_MS_TO_TU(100),
+ sleepduration);
if (bs.bs_sleepduration > bs.bs_dtimperiod)
bs.bs_sleepduration = bs.bs_dtimperiod;
@@ -899,19 +793,19 @@ void ath_beacon_config(struct ath_softc *sc, int if_id)
"cfp:period %u "
"maxdur %u "
"next %u "
- "timoffset %u\n"
- , __func__
- , (unsigned long long)tsf, tsftu
- , bs.bs_intval
- , bs.bs_nexttbtt
- , bs.bs_dtimperiod
- , bs.bs_nextdtim
- , bs.bs_bmissthreshold
- , bs.bs_sleepduration
- , bs.bs_cfpperiod
- , bs.bs_cfpmaxduration
- , bs.bs_cfpnext
- , bs.bs_timoffset
+ "timoffset %u\n",
+ __func__,
+ (unsigned long long)tsf, tsftu,
+ bs.bs_intval,
+ bs.bs_nexttbtt,
+ bs.bs_dtimperiod,
+ bs.bs_nextdtim,
+ bs.bs_bmissthreshold,
+ bs.bs_sleepduration,
+ bs.bs_cfpperiod,
+ bs.bs_cfpmaxduration,
+ bs.bs_cfpnext,
+ bs.bs_timoffset
);
ath9k_hw_set_interrupts(ah, 0);
@@ -924,12 +818,12 @@ void ath_beacon_config(struct ath_softc *sc, int if_id)
ath9k_hw_set_interrupts(ah, 0);
if (nexttbtt == intval)
intval |= ATH9K_BEACON_RESET_TSF;
- if (sc->sc_opmode == ATH9K_M_IBSS) {
+ if (sc->sc_ah->ah_opmode == ATH9K_M_IBSS) {
/*
* Pull nexttbtt forward to reflect the current
- * TSF .
+ * TSF
*/
-#define FUDGE 2
+#define FUDGE 2
if (!(intval & ATH9K_BEACON_RESET_TSF)) {
tsf = ath9k_hw_gettsf64(ah);
tsftu = TSF_TO_TU((u32)(tsf>>32),
@@ -956,7 +850,7 @@ void ath_beacon_config(struct ath_softc *sc, int if_id)
if (!(ah->ah_caps.hw_caps & ATH9K_HW_CAP_VEOL))
sc->sc_imask |= ATH9K_INT_SWBA;
ath_beaconq_config(sc);
- } else if (sc->sc_opmode == ATH9K_M_HOSTAP) {
+ } else if (sc->sc_ah->ah_opmode == ATH9K_M_HOSTAP) {
/*
* In AP mode we enable the beacon timers and
* SWBA interrupts to prepare beacon frames.
@@ -972,11 +866,10 @@ void ath_beacon_config(struct ath_softc *sc, int if_id)
* When using a self-linked beacon descriptor in
* ibss mode load it once here.
*/
- if (sc->sc_opmode == ATH9K_M_IBSS &&
+ if (sc->sc_ah->ah_opmode == ATH9K_M_IBSS &&
(ah->ah_caps.hw_caps & ATH9K_HW_CAP_VEOL))
ath_beacon_start_adhoc(sc, 0);
}
-#undef TSF_TO_TU
}
/* Function to collect beacon rssi data and resync beacon if necessary */
@@ -988,5 +881,5 @@ void ath_beacon_sync(struct ath_softc *sc, int if_id)
* beacon frame we just received.
*/
ath_beacon_config(sc, if_id);
- sc->sc_beacons = 1;
+ sc->sc_flags |= SC_OP_BEACONS;
}