/*
 * Copyright (c) 2010-2011 Atheros Communications Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "htc.h"

#define FUDGE 2

void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv)
{
        struct ath_hw *ah = priv->ah;
        struct ath9k_tx_queue_info qi, qi_be;

        memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
        memset(&qi_be, 0, sizeof(struct ath9k_tx_queue_info));

        ath9k_hw_get_txq_props(ah, priv->beaconq, &qi);

        if (priv->ah->opmode == NL80211_IFTYPE_AP) {
                qi.tqi_aifs = 1;
                qi.tqi_cwmin = 0;
                qi.tqi_cwmax = 0;
        } else if (priv->ah->opmode == NL80211_IFTYPE_ADHOC) {
                int qnum = priv->hwq_map[IEEE80211_AC_BE];

                ath9k_hw_get_txq_props(ah, qnum, &qi_be);

                qi.tqi_aifs = qi_be.tqi_aifs;

                /*
                 * For WIFI Beacon Distribution
                 * Long slot time  : 2x cwmin
                 * Short slot time : 4x cwmin
                 */
                if (ah->slottime == ATH9K_SLOT_TIME_20)
                        qi.tqi_cwmin = 2*qi_be.tqi_cwmin;
                else
                        qi.tqi_cwmin = 4*qi_be.tqi_cwmin;

                qi.tqi_cwmax = qi_be.tqi_cwmax;

        }

        if (!ath9k_hw_set_txq_props(ah, priv->beaconq, &qi)) {
                ath_err(ath9k_hw_common(ah),
                        "Unable to update beacon queue %u!\n", priv->beaconq);
        } else {
                ath9k_hw_resettxqueue(ah, priv->beaconq);
        }
}


static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv,
                                        struct htc_beacon_config *bss_conf)
{
        struct ath_common *common = ath9k_hw_common(priv->ah);
        struct ath9k_beacon_state bs;
        enum ath9k_int imask = 0;
        int dtimperiod, dtimcount, sleepduration;
        int cfpperiod, cfpcount, bmiss_timeout;
        u32 nexttbtt = 0, intval, tsftu;
        __be32 htc_imask = 0;
        u64 tsf;
        int num_beacons, offset, dtim_dec_count, cfp_dec_count;
        int ret __attribute__ ((unused));
        u8 cmd_rsp;

        memset(&bs, 0, sizeof(bs));

        intval = bss_conf->beacon_interval;
        bmiss_timeout = (ATH_DEFAULT_BMISS_LIMIT * bss_conf->beacon_interval);

        /*
         * Setup dtim and cfp parameters according to
         * last beacon we received (which may be none).
         */
        dtimperiod = bss_conf->dtim_period;
        if (dtimperiod <= 0)            /* NB: 0 if not known */
                dtimperiod = 1;
        dtimcount = 1;
        if (dtimcount >= dtimperiod)    /* NB: sanity check */
                dtimcount = 0;
        cfpperiod = 1;                  /* NB: no PCF support yet */
        cfpcount = 0;

        sleepduration = intval;
        if (sleepduration <= 0)
                sleepduration = intval;

        /*
         * Pull nexttbtt forward to reflect the current
         * TSF and calculate dtim+cfp state for the result.
         */
        tsf = ath9k_hw_gettsf64(priv->ah);
        tsftu = TSF_TO_TU(tsf>>32, tsf) + FUDGE;

        num_beacons = tsftu / intval + 1;
        offset = tsftu % intval;
        nexttbtt = tsftu - offset;
        if (offset)
                nexttbtt += intval;

        /* DTIM Beacon every dtimperiod Beacon */
        dtim_dec_count = num_beacons % dtimperiod;
        /* CFP every cfpperiod DTIM Beacon */
        cfp_dec_count = (num_beacons / dtimperiod) % cfpperiod;
        if (dtim_dec_count)
                cfp_dec_count++;

        dtimcount -= dtim_dec_count;
        if (dtimcount < 0)
                dtimcount += dtimperiod;

        cfpcount -= cfp_dec_count;
        if (cfpcount < 0)
                cfpcount += cfpperiod;

        bs.bs_intval = intval;
        bs.bs_nexttbtt = nexttbtt;
        bs.bs_dtimperiod = dtimperiod*intval;
        bs.bs_nextdtim = bs.bs_nexttbtt + dtimcount*intval;
        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 is specified in TU so we only
         * need calculate based on the beacon interval.  Note that we clamp the
         * result to at most 15 beacons.
         */
        if (sleepduration > intval) {
                bs.bs_bmissthreshold = ATH_DEFAULT_BMISS_LIMIT / 2;
        } else {
                bs.bs_bmissthreshold = DIV_ROUND_UP(bmiss_timeout, intval);
                if (bs.bs_bmissthreshold > 15)
                        bs.bs_bmissthreshold = 15;
                else if (bs.bs_bmissthreshold <= 0)
                        bs.bs_bmissthreshold = 1;
        }

        /*
         * Calculate sleep duration. The configuration is given in ms.
         * We ensure a multiple of the beacon period is used. Also, if the sleep
         * duration is greater than the DTIM period then it makes senses
         * to make it a multiple of that.
         *
         * XXX fixed at 100ms
         */

        bs.bs_sleepduration = roundup(IEEE80211_MS_TO_TU(100), sleepduration);
        if (bs.bs_sleepduration > bs.bs_dtimperiod)
                bs.bs_sleepduration = bs.bs_dtimperiod;

        /* TSF out of range threshold fixed at 1 second */
        bs.bs_tsfoor_threshold = ATH9K_TSFOOR_THRESHOLD;

        ath_dbg(common, CONFIG, "intval: %u tsf: %llu tsftu: %u\n",
                intval, tsf, tsftu);
        ath_dbg(common, CONFIG,
                "bmiss: %u sleep: %u cfp-period: %u maxdur: %u next: %u\n",
                bs.bs_bmissthreshold, bs.bs_sleepduration,
                bs.bs_cfpperiod, bs.bs_cfpmaxduration, bs.bs_cfpnext);

        /* Set the computed STA beacon timers */

        WMI_CMD(WMI_DISABLE_INTR_CMDID);
        ath9k_hw_set_sta_beacon_timers(priv->ah, &bs);
        imask |= ATH9K_INT_BMISS;
        htc_imask = cpu_to_be32(imask);
        WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
}

static void ath9k_htc_beacon_config_ap(struct ath9k_htc_priv *priv,
                                       struct htc_beacon_config *bss_conf)
{
        struct ath_common *common = ath9k_hw_common(priv->ah);
        enum ath9k_int imask = 0;
        u32 nexttbtt, intval, tsftu;
        __be32 htc_imask = 0;
        int ret __attribute__ ((unused));
        u8 cmd_rsp;
        u64 tsf;

        intval = bss_conf->beacon_interval;
        intval /= ATH9K_HTC_MAX_BCN_VIF;
        nexttbtt = intval;

        /*
         * To reduce beacon misses under heavy TX load,
         * set the beacon response time to a larger value.
         */
        if (intval > DEFAULT_SWBA_RESPONSE)
                priv->ah->config.sw_beacon_response_time = DEFAULT_SWBA_RESPONSE;
        else
                priv->ah->config.sw_beacon_response_time = MIN_SWBA_RESPONSE;

        if (test_bit(OP_TSF_RESET, &priv->op_flags)) {
                ath9k_hw_reset_tsf(priv->ah);
                clear_bit(OP_TSF_RESET, &priv->op_flags);
        } else {
                /*
                 * Pull nexttbtt forward to reflect the current TSF.
                 */
                tsf = ath9k_hw_gettsf64(priv->ah);
                tsftu = TSF_TO_TU(tsf >> 32, tsf) + FUDGE;
                do {
                        nexttbtt += intval;
                } while (nexttbtt < tsftu);
        }

        if (test_bit(OP_ENABLE_BEACON, &priv->op_flags))
                imask |= ATH9K_INT_SWBA;

        ath_dbg(common, CONFIG,
                "AP Beacon config, intval: %d, nexttbtt: %u, resp_time: %d imask: 0x%x\n",
                bss_conf->beacon_interval, nexttbtt,
                priv->ah->config.sw_beacon_response_time, imask);

        ath9k_htc_beaconq_config(priv);

        WMI_CMD(WMI_DISABLE_INTR_CMDID);
        ath9k_hw_beaconinit(priv->ah, TU_TO_USEC(nexttbtt), TU_TO_USEC(intval));
        priv->cur_beacon_conf.bmiss_cnt = 0;
        htc_imask = cpu_to_be32(imask);
        WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
}

static void ath9k_htc_beacon_config_adhoc(struct ath9k_htc_priv *priv,
                                          struct htc_beacon_config *bss_conf)
{
        struct ath_common *common = ath9k_hw_common(priv->ah);
        enum ath9k_int imask = 0;
        u32 nexttbtt, intval, tsftu;
        __be32 htc_imask = 0;
        int ret __attribute__ ((unused));
        u8 cmd_rsp;
        u64 tsf;

        intval = bss_conf->beacon_interval;
        nexttbtt = intval;

        /*
         * Pull nexttbtt forward to reflect the current TSF.
         */
        tsf = ath9k_hw_gettsf64(priv->ah);
        tsftu = TSF_TO_TU(tsf >> 32, tsf) + FUDGE;
        do {
                nexttbtt += intval;
        } while (nexttbtt < tsftu);

        /*
         * Only one IBSS interfce is allowed.
         */
        if (intval > DEFAULT_SWBA_RESPONSE)
                priv->ah->config.sw_beacon_response_time = DEFAULT_SWBA_RESPONSE;
        else
                priv->ah->config.sw_beacon_response_time = MIN_SWBA_RESPONSE;

        if (test_bit(OP_ENABLE_BEACON, &priv->op_flags))
                imask |= ATH9K_INT_SWBA;

        ath_dbg(common, CONFIG,
                "IBSS Beacon config, intval: %d, nexttbtt: %u, resp_time: %d, imask: 0x%x\n",
                bss_conf->beacon_interval, nexttbtt,
                priv->ah->config.sw_beacon_response_time, imask);

        WMI_CMD(WMI_DISABLE_INTR_CMDID);
        ath9k_hw_beaconinit(priv->ah, TU_TO_USEC(nexttbtt), TU_TO_USEC(intval));
        priv->cur_beacon_conf.bmiss_cnt = 0;
        htc_imask = cpu_to_be32(imask);
        WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
}

void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
                        enum htc_endpoint_id ep_id, bool txok)
{
        dev_kfree_skb_any(skb);
}

static void ath9k_htc_send_buffered(struct ath9k_htc_priv *priv,
                                    int slot)
{
        struct ath_common *common = ath9k_hw_common(priv->ah);
        struct ieee80211_vif *vif;
        struct sk_buff *skb;
        struct ieee80211_hdr *hdr;
        int padpos, padsize, ret, tx_slot;

        spin_lock_bh(&priv->beacon_lock);

        vif = priv->cur_beacon_conf.bslot[slot];

        skb = ieee80211_get_buffered_bc(priv->hw, vif);

        while(skb) {
                hdr = (struct ieee80211_hdr *) skb->data;

                padpos = ieee80211_hdrlen(hdr->frame_control);
                padsize = padpos & 3;
                if (padsize && skb->len > padpos) {
                        if (skb_headroom(skb) < padsize) {
                                dev_kfree_skb_any(skb);
                                goto next;
                        }
                        skb_push(skb, padsize);
                        memmove(skb->data, skb->data + padsize, padpos);
                }

                tx_slot = ath9k_htc_tx_get_slot(priv);
                if (tx_slot < 0) {
                        ath_dbg(common, XMIT, "No free CAB slot\n");
                        dev_kfree_skb_any(skb);
                        goto next;
                }

                ret = ath9k_htc_tx_start(priv, NULL, skb, tx_slot, true);
                if (ret != 0) {
                        ath9k_htc_tx_clear_slot(priv, tx_slot);
                        dev_kfree_skb_any(skb);

                        ath_dbg(common, XMIT, "Failed to send CAB frame\n");
                } else {
                        spin_lock_bh(&priv->tx.tx_lock);
                        priv->tx.queued_cnt++;
                        spin_unlock_bh(&priv->tx.tx_lock);
                }
        next:
                skb = ieee80211_get_buffered_bc(priv->hw, vif);
        }

        spin_unlock_bh(&priv->beacon_lock);
}

static void ath9k_htc_send_beacon(struct ath9k_htc_priv *priv,
                                  int slot)
{
        struct ath_common *common = ath9k_hw_common(priv->ah);
        struct ieee80211_vif *vif;
        struct ath9k_htc_vif *avp;
        struct tx_beacon_header beacon_hdr;
        struct ath9k_htc_tx_ctl *tx_ctl;
        struct ieee80211_tx_info *info;
        struct ieee80211_mgmt *mgmt;
        struct sk_buff *beacon;
        u8 *tx_fhdr;
        int ret;

        memset(&beacon_hdr, 0, sizeof(struct tx_beacon_header));

        spin_lock_bh(&priv->beacon_lock);

        vif = priv->cur_beacon_conf.bslot[slot];
        avp = (struct ath9k_htc_vif *)vif->drv_priv;

        if (unlikely(test_bit(OP_SCANNING, &priv->op_flags))) {
                spin_unlock_bh(&priv->beacon_lock);
                return;
        }

        /* Get a new beacon */
        beacon = ieee80211_beacon_get(priv->hw, vif);
        if (!beacon) {
                spin_unlock_bh(&priv->beacon_lock);
                return;
        }

        /*
         * Update the TSF adjust value here, the HW will
         * add this value for every beacon.
         */
        mgmt = (struct ieee80211_mgmt *)beacon->data;
        mgmt->u.beacon.timestamp = avp->tsfadjust;

        info = IEEE80211_SKB_CB(beacon);
        if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
                struct ieee80211_hdr *hdr =
                        (struct ieee80211_hdr *) beacon->data;
                avp->seq_no += 0x10;
                hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
                hdr->seq_ctrl |= cpu_to_le16(avp->seq_no);
        }

        tx_ctl = HTC_SKB_CB(beacon);
        memset(tx_ctl, 0, sizeof(*tx_ctl));

        tx_ctl->type = ATH9K_HTC_BEACON;
        tx_ctl->epid = priv->beacon_ep;

        beacon_hdr.vif_index = avp->index;
        tx_fhdr = skb_push(beacon, sizeof(beacon_hdr));
        memcpy(tx_fhdr, (u8 *) &beacon_hdr, sizeof(beacon_hdr));

        ret = htc_send(priv->htc, beacon);
        if (ret != 0) {
                if (ret == -ENOMEM) {
                        ath_dbg(common, BSTUCK,
                                "Failed to send beacon, no free TX buffer\n");
                }
                dev_kfree_skb_any(beacon);
        }

        spin_unlock_bh(&priv->beacon_lock);
}

static int ath9k_htc_choose_bslot(struct ath9k_htc_priv *priv,
                                  struct wmi_event_swba *swba)
{
        struct ath_common *common = ath9k_hw_common(priv->ah);
        u64 tsf;
        u32 tsftu;
        u16 intval;
        int slot;

        intval = priv->cur_beacon_conf.beacon_interval;

        tsf = be64_to_cpu(swba->tsf);
        tsftu = TSF_TO_TU(tsf >> 32, tsf);
        slot = ((tsftu % intval) * ATH9K_HTC_MAX_BCN_VIF) / intval;
        slot = ATH9K_HTC_MAX_BCN_VIF - slot - 1;

        ath_dbg(common, BEACON,
                "Choose slot: %d, tsf: %llu, tsftu: %u, intval: %u\n",
                slot, tsf, tsftu, intval);

        return slot;
}

void ath9k_htc_swba(struct ath9k_htc_priv *priv,
                    struct wmi_event_swba *swba)
{
        struct ath_common *common = ath9k_hw_common(priv->ah);
        int slot;

        if (swba->beacon_pending != 0) {
                priv->cur_beacon_conf.bmiss_cnt++;
                if (priv->cur_beacon_conf.bmiss_cnt > BSTUCK_THRESHOLD) {
                        ath_dbg(common, BSTUCK, "Beacon stuck, HW reset\n");
                        ieee80211_queue_work(priv->hw,
                                             &priv->fatal_work);
                }
                return;
        }

        if (priv->cur_beacon_conf.bmiss_cnt) {
                ath_dbg(common, BSTUCK,
                        "Resuming beacon xmit after %u misses\n",
                        priv->cur_beacon_conf.bmiss_cnt);
                priv->cur_beacon_conf.bmiss_cnt = 0;
        }

        slot = ath9k_htc_choose_bslot(priv, swba);
        spin_lock_bh(&priv->beacon_lock);
        if (priv->cur_beacon_conf.bslot[slot] == NULL) {
                spin_unlock_bh(&priv->beacon_lock);
                return;
        }
        spin_unlock_bh(&priv->beacon_lock);

        ath9k_htc_send_buffered(priv, slot);
        ath9k_htc_send_beacon(priv, slot);
}

void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv,
                            struct ieee80211_vif *vif)
{
        struct ath_common *common = ath9k_hw_common(priv->ah);
        struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *)vif->drv_priv;
        int i = 0;

        spin_lock_bh(&priv->beacon_lock);
        for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++) {
                if (priv->cur_beacon_conf.bslot[i] == NULL) {
                        avp->bslot = i;
                        break;
                }
        }

        priv->cur_beacon_conf.bslot[avp->bslot] = vif;
        spin_unlock_bh(&priv->beacon_lock);

        ath_dbg(common, CONFIG, "Added interface at beacon slot: %d\n",
                avp->bslot);
}

void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv,
                            struct ieee80211_vif *vif)
{
        struct ath_common *common = ath9k_hw_common(priv->ah);
        struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *)vif->drv_priv;

        spin_lock_bh(&priv->beacon_lock);
        priv->cur_beacon_conf.bslot[avp->bslot] = NULL;
        spin_unlock_bh(&priv->beacon_lock);

        ath_dbg(common, CONFIG, "Removed interface at beacon slot: %d\n",
                avp->bslot);
}

/*
 * Calculate the TSF adjustment value for all slots
 * other than zero.
 */
void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv,
                             struct ieee80211_vif *vif)
{
        struct ath_common *common = ath9k_hw_common(priv->ah);
        struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *)vif->drv_priv;
        struct htc_beacon_config *cur_conf = &priv->cur_beacon_conf;
        u64 tsfadjust;

        if (avp->bslot == 0)
                return;

        /*
         * The beacon interval cannot be different for multi-AP mode,
         * and we reach here only for VIF slots greater than zero,
         * so beacon_interval is guaranteed to be set in cur_conf.
         */
        tsfadjust = cur_conf->beacon_interval * avp->bslot / ATH9K_HTC_MAX_BCN_VIF;
        avp->tsfadjust = cpu_to_le64(TU_TO_USEC(tsfadjust));

        ath_dbg(common, CONFIG, "tsfadjust is: %llu for bslot: %d\n",
                (unsigned long long)tsfadjust, avp->bslot);
}

static void ath9k_htc_beacon_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
{
        bool *beacon_configured = (bool *)data;
        struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;

        if (vif->type == NL80211_IFTYPE_STATION &&
            avp->beacon_configured)
                *beacon_configured = true;
}

static bool ath9k_htc_check_beacon_config(struct ath9k_htc_priv *priv,
                                          struct ieee80211_vif *vif)
{
        struct ath_common *common = ath9k_hw_common(priv->ah);
        struct htc_beacon_config *cur_conf = &priv->cur_beacon_conf;
        struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
        bool beacon_configured;

        /*
         * Changing the beacon interval when multiple AP interfaces
         * are configured will affect beacon transmission of all
         * of them.
         */
        if ((priv->ah->opmode == NL80211_IFTYPE_AP) &&
            (priv->num_ap_vif > 1) &&
            (vif->type == NL80211_IFTYPE_AP) &&
            (cur_conf->beacon_interval != bss_conf->beacon_int)) {
                ath_dbg(common, CONFIG,
                        "Changing beacon interval of multiple AP interfaces !\n");
                return false;
        }

        /*
         * If the HW is operating in AP mode, any new station interfaces that
         * are added cannot change the beacon parameters.
         */
        if (priv->num_ap_vif &&
            (vif->type != NL80211_IFTYPE_AP)) {
                ath_dbg(common, CONFIG,
                        "HW in AP mode, cannot set STA beacon parameters\n");
                return false;
        }

        /*
         * The beacon parameters are configured only for the first
         * station interface.
         */
        if ((priv->ah->opmode == NL80211_IFTYPE_STATION) &&
            (priv->num_sta_vif > 1) &&
            (vif->type == NL80211_IFTYPE_STATION)) {
                beacon_configured = false;
                ieee80211_iterate_active_interfaces_atomic(
                        priv->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
                        ath9k_htc_beacon_iter, &beacon_configured);

                if (beacon_configured) {
                        ath_dbg(common, CONFIG,
                                "Beacon already configured for a station interface\n");
                        return false;
                }
        }

        return true;
}

void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
                             struct ieee80211_vif *vif)
{
        struct ath_common *common = ath9k_hw_common(priv->ah);
        struct htc_beacon_config *cur_conf = &priv->cur_beacon_conf;
        struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
        struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;

        if (!ath9k_htc_check_beacon_config(priv, vif))
                return;

        cur_conf->beacon_interval = bss_conf->beacon_int;
        if (cur_conf->beacon_interval == 0)
                cur_conf->beacon_interval = 100;

        cur_conf->dtim_period = bss_conf->dtim_period;
        cur_conf->bmiss_timeout =
                ATH_DEFAULT_BMISS_LIMIT * cur_conf->beacon_interval;

        switch (vif->type) {
        case NL80211_IFTYPE_STATION:
                ath9k_htc_beacon_config_sta(priv, cur_conf);
                avp->beacon_configured = true;
                break;
        case NL80211_IFTYPE_ADHOC:
                ath9k_htc_beacon_config_adhoc(priv, cur_conf);
                break;
        case NL80211_IFTYPE_AP:
                ath9k_htc_beacon_config_ap(priv, cur_conf);
                break;
        default:
                ath_dbg(common, CONFIG, "Unsupported beaconing mode\n");
                return;
        }
}

void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv)
{
        struct ath_common *common = ath9k_hw_common(priv->ah);
        struct htc_beacon_config *cur_conf = &priv->cur_beacon_conf;

        switch (priv->ah->opmode) {
        case NL80211_IFTYPE_STATION:
                ath9k_htc_beacon_config_sta(priv, cur_conf);
                break;
        case NL80211_IFTYPE_ADHOC:
                ath9k_htc_beacon_config_adhoc(priv, cur_conf);
                break;
        case NL80211_IFTYPE_AP:
                ath9k_htc_beacon_config_ap(priv, cur_conf);
                break;
        default:
                ath_dbg(common, CONFIG, "Unsupported beaconing mode\n");
                return;
        }
}