c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Use is subject to license terms.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Copyright (c) 2008 Atheros Communications Inc.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Permission to use, copy, modify, and/or distribute this software for any
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * purpose with or without fee is hereby granted, provided that the above
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * copyright notice and this permission notice appear in all copies.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/param.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <sys/strsun.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <inet/common.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <inet/nd.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <inet/mi.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include <inet/wifi_ioctl.h>
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#include "arn_core.h"
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Associates the beacon frame buffer with a transmit descriptor. Will set
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * up all required antenna switch parameters, rate codes, and channel flags.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Beacons are always sent out at the lowest rate, and are not retried.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_beacon_setup(struct arn_softc *sc, struct ath_buf *bf)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#define USE_SHPREAMBLE(_ic) \
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (((_ic)->ic_flags & (IEEE80211_F_SHPREAMBLE | IEEE80211_F_USEBARKER))\
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China == IEEE80211_F_SHPREAMBLE)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mblk_t *mp = bf->bf_m;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_hal *ah = sc->sc_ah;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_desc *ds;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* LINTED E_FUNC_SET_NOT_USED */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China int flags, antenna = 0;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_rate_table *rt;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China uint8_t rix, rate;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath9k_11n_rate_series series[4];
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China int ctsrate = 0;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China int ctsduration = 0;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* set up descriptors */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ds = bf->bf_desc;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China flags = ATH9K_TXDESC_NOACK;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (sc->sc_ah->ah_opmode == ATH9K_M_IBSS &&
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (ah->ah_caps.hw_caps & ATH9K_HW_CAP_VEOL)) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ds->ds_link = bf->bf_daddr; /* self-linked */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China flags |= ATH9K_TXDESC_VEOL;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Let hardware handle antenna switching.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ds->ds_link = 0;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Switch antenna every 4 beacons.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * NB: assumes two antenna
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China antenna = ((sc->ast_be_xmit / sc->sc_nbcnvaps) & 1 ? 2 : 1);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ds->ds_data = bf->bf_dma.cookie.dmac_address;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Calculate rate code.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * XXX everything at min xmit rate
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China rt = sc->hw_rate_table[sc->sc_curmode];
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China rate = rt->info[rix].ratecode;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (sc->sc_flags & SC_OP_PREAMBLE_SHORT)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China rate |= rt->info[rix].short_preamble;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ath9k_hw_set11n_txdesc(ah, ds,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China MBLKL(mp) + IEEE80211_CRC_LEN, /* frame length */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ATH9K_PKT_TYPE_BEACON, /* Atheros packet type */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China MAX_RATE_POWER, /* FIXME */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ATH9K_TXKEYIX_INVALID, /* no encryption */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ATH9K_KEY_TYPE_CLEAR, /* no encryption */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China flags); /* no ack, veol for beacons */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* NB: beacon's BufLen must be a multiple of 4 bytes */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) ath9k_hw_filltxdesc(ah, ds,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China roundup(MBLKL(mp), 4), /* buffer length */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China B_TRUE, /* first segment */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China B_TRUE, /* last segment */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ds); /* first descriptor */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) memset(series, 0, sizeof (struct ath9k_11n_rate_series) * 4);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China series[0].Tries = 1;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China series[0].Rate = rate;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China series[0].ChSel = sc->sc_tx_chainmask;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China series[0].RateFlags = (ctsrate) ? ATH9K_RATESERIES_RTS_CTS : 0;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ath9k_hw_set11n_ratescenario(ah, ds, ds, 0,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ctsrate, ctsduration, series, 4, 0);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China#undef USE_SHPREAMBLE
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Startup beacon transmission for adhoc mode when they are sent entirely
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * by the hardware using the self-linked descriptor + veol trick.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_beacon_start_adhoc(struct arn_softc *sc)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_buf *bf = list_head(&sc->sc_bcbuf_list);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ieee80211_node *in = bf->bf_in;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ieee80211com *ic = in->in_ic;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_hal *ah = sc->sc_ah;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (ieee80211_beacon_update(ic, bf->bf_in, &sc->asc_boff, mp, 0))
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China bcopy(mp->b_rptr, bf->bf_dma.mem_va, MBLKL(mp));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* Construct tx descriptor. */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China arn_beacon_setup(sc, bf);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Stop any current dma and put the new frame on the queue.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * This should never fail since we check above that no frames
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * are still pending on the queue.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (!ath9k_hw_stoptxdma(ah, sc->sc_beaconq)) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China arn_problem("ath: beacon queue %d did not stop?\n",
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_beaconq);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ARN_DMA_SYNC(bf->bf_dma, DDI_DMA_SYNC_FORDEV);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* NB: caller is known to have already stopped tx dma */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) ath9k_hw_puttxbuf(ah, sc->sc_beaconq, bf->bf_daddr);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) ath9k_hw_txstart(ah, sc->sc_beaconq);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_BEACON, "arn: arn_bstuck_process(): "
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China "TXDP%u = %llx (%p)\n", sc->sc_beaconq,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ito64(bf->bf_daddr), bf->bf_desc));
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China#endif /* ARN_IBSS */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_beaconq_setup(struct ath_hal *ah)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath9k_tx_queue_info qi;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) memset(&qi, 0, sizeof (qi));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qi.tqi_aifs = 1;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qi.tqi_cwmin = 0;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China qi.tqi_cwmax = 0;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* NB: don't enable any interrupts */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China return (ath9k_hw_setuptxqueue(ah, ATH9K_TX_QUEUE_BEACON, &qi));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_beacon_alloc(struct arn_softc *sc, struct ieee80211_node *in)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ieee80211com_t *ic = in->in_ic;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_buf *bf;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_enter(&sc->sc_bcbuflock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China bf = list_head(&sc->sc_bcbuf_list);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (bf == NULL) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China arn_problem("arn: arn_beacon_alloc():"
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China "no dma buffers");
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_exit(&sc->sc_bcbuflock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China return (ENOMEM);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mp = ieee80211_beacon_alloc(ic, in, &sc->asc_boff);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (mp == NULL) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China arn_problem("ath: arn_beacon_alloc():"
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China "cannot get mbuf\n");
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_exit(&sc->sc_bcbuflock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China return (ENOMEM);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ASSERT(mp->b_cont == NULL);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China bcopy(mp->b_rptr, bf->bf_dma.mem_va, MBLKL(mp));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China bf->bf_in = ieee80211_ref_node(in);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_exit(&sc->sc_bcbuflock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_beacon_return(struct arn_softc *sc)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_buf *bf;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_enter(&sc->sc_bcbuflock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China bf = list_head(&sc->sc_bcbuf_list);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China while (bf != NULL) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (bf->bf_m != NULL) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China freemsg(bf->bf_m);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China bf->bf_m = NULL;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (bf->bf_in != NULL) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ieee80211_free_node(bf->bf_in);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China bf->bf_in = NULL;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China bf = list_next(&sc->sc_bcbuf_list, bf);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China mutex_exit(&sc->sc_bcbuflock);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_beacon_config(struct arn_softc *sc)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ath_beacon_config conf;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ieee80211com_t *ic = (ieee80211com_t *)sc;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct ieee80211_node *in = ic->ic_bss;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China struct ath9k_beacon_state bs;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China int dtimperiod, dtimcount, sleepduration;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China int cfpperiod, cfpcount;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China uint32_t nexttbtt = 0, intval, tsftu;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (void) memset(&conf, 0, sizeof (struct ath_beacon_config));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* XXX fix me */
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China conf.beacon_interval = in->in_intval ?
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China in->in_intval : ATH_DEFAULT_BINTVAL;
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_BEACON, "arn: arn_beacon_config():"
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China "conf.beacon_interval = %d\n", conf.beacon_interval));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China conf.listen_interval = 1;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China conf.dtim_period = conf.beacon_interval;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China conf.dtim_count = 1;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China conf.bmiss_timeout = ATH_DEFAULT_BMISS_LIMIT * conf.beacon_interval;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China (void) memset(&bs, 0, sizeof (bs));
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China intval = conf.beacon_interval & ATH9K_BEACON_PERIOD;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China * Setup dtim and cfp parameters according to
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China * last beacon we received (which may be none).
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China dtimperiod = conf.dtim_period;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China if (dtimperiod <= 0) /* NB: 0 if not known */
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China dtimcount = conf.dtim_count;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China if (dtimcount >= dtimperiod) /* NB: sanity check */
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China cfpperiod = 1; /* NB: no PCF support yet */
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China sleepduration = conf.listen_interval * intval;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China if (sleepduration <= 0)
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China sleepduration = intval;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China * Pull nexttbtt forward to reflect the current
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China * TSF and calculate dtim+cfp state for the result.
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China tsf = ath9k_hw_gettsf64(sc->sc_ah);
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China tsftu = TSF_TO_TU(tsf>>32, tsf) + FUDGE;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China nexttbtt += intval;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China if (--dtimcount < 0) {
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China dtimcount = dtimperiod - 1;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China if (--cfpcount < 0)
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China cfpcount = cfpperiod - 1;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China } while (nexttbtt < tsftu);
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China bs.bs_intval = intval;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China bs.bs_nexttbtt = nexttbtt;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China bs.bs_dtimperiod = dtimperiod*intval;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China bs.bs_nextdtim = bs.bs_nexttbtt + dtimcount*intval;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China bs.bs_cfpperiod = cfpperiod*bs.bs_dtimperiod;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China bs.bs_cfpnext = bs.bs_nextdtim + cfpcount*bs.bs_dtimperiod;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China bs.bs_cfpmaxduration = 0;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China * Calculate the number of consecutive beacons to miss* before taking
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China * a BMISS interrupt. The configuration is specified in TU so we only
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China * need calculate based on the beacon interval. Note that we clamp the
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China * result to at most 15 beacons.
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China if (sleepduration > intval) {
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China bs.bs_bmissthreshold = conf.listen_interval *
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China bs.bs_bmissthreshold = DIV_ROUND_UP(conf.bmiss_timeout, intval);
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China if (bs.bs_bmissthreshold > 15)
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China bs.bs_bmissthreshold = 15;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China else if (bs.bs_bmissthreshold == 0)
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China bs.bs_bmissthreshold = 1;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China * Calculate sleep duration. The configuration is given in ms.
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China * We ensure a multiple of the beacon period is used. Also, if the sleep
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China * duration is greater than the DTIM period then it makes senses
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China * to make it a multiple of that.
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China * XXX fixed at 100ms
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China bs.bs_sleepduration = roundup(IEEE80211_MS_TO_TU(100), sleepduration);
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China if (bs.bs_sleepduration > bs.bs_dtimperiod)
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China bs.bs_sleepduration = bs.bs_dtimperiod;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China /* TSF out of range threshold fixed at 1 second */
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China bs.bs_tsfoor_threshold = ATH9K_TSFOOR_THRESHOLD;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_BEACON, "arn: arn_beacon_config(): "
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China "cfp:period %u "
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China "timoffset %u\n",
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China (unsigned long long)tsf, tsftu,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bs.bs_dtimperiod,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bs.bs_bmissthreshold,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bs.bs_sleepduration,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bs.bs_cfpperiod,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bs.bs_cfpmaxduration,
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China bs.bs_timoffset));
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China /* Set the computed STA beacon timers */
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China (void) ath9k_hw_set_interrupts(sc->sc_ah, 0);
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China ath9k_hw_set_sta_beacon_timers(sc->sc_ah, &bs);
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China sc->sc_imask |= ATH9K_INT_BMISS;
3ae945c326c1fc078149f2c8b11fac0cc8f6d1d6lin wang - Sun Microsystems - Beijing China (void) ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_imask);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaath_beacon_sync(struct arn_softc *sc)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * Resync beacon timers using the tsf of the
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China * beacon frame we just received.
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China arn_beacon_config(sc);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China sc->sc_flags |= SC_OP_BEACONS;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing Chinaarn_bmiss_proc(void *arg)
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China struct arn_softc *sc = (struct arn_softc *)arg;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ieee80211com_t *ic = (ieee80211com_t *)sc;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China uint64_t tsf, lastrx;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China uint_t bmisstimeout;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China if (ic->ic_opmode != IEEE80211_M_STA ||
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ic->ic_state != IEEE80211_S_RUN) {
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China lastrx = sc->sc_lastrx;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China tsf = ath9k_hw_gettsf64(sc->sc_ah);
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China bmisstimeout = ic->ic_bmissthreshold * ic->ic_bss->in_intval * 1024;
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China ARN_DBG((ARN_DBG_BEACON, "arn_bmiss_proc():"
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China " tsf %llu, lastrx %llu (%lld), bmiss %u\n",
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (unsigned long long)tsf, (unsigned long long)sc->sc_lastrx,
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China (long long)(tsf - lastrx), bmisstimeout));
dd1de3740722a4b99a74005255effebbd20a6d70lin wang - Sun Microsystems - Beijing China /* temp workaround */
c0c934808d1b7d058148814255f32064a0e09555lin wang - Sun Microsystems - Beijing China if ((tsf - lastrx) > bmisstimeout)