Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp

Conflicts:
	litmus/sched_cedf.c

1 files changed, 833 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath5k/mac80211-ops.c b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
new file mode 100644
index 000000000000..807bd6440169
--- /dev/null
+++ b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
@@ -0,0 +1,833 @@
+/*-
+ * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
+ * Copyright (c) 2004-2005 Atheros Communications, Inc.
+ * Copyright (c) 2006 Devicescape Software, Inc.
+ * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
+ * Copyright (c) 2007 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
+ * Copyright (c) 2010 Bruno Randolf <br1@einfach.org>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
+ *    redistribution must be conditioned upon including a substantially
+ *    similar Disclaimer requirement for further binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ */
+
+#include <asm/unaligned.h>
+
+#include "base.h"
+#include "reg.h"
+
+extern int ath5k_modparam_nohwcrypt;
+
+/********************\
+* Mac80211 functions *
+\********************/
+
+static void
+ath5k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+{
+        struct ath5k_softc *sc = hw->priv;
+        u16 qnum = skb_get_queue_mapping(skb);
+
+        if (WARN_ON(qnum >= sc->ah->ah_capabilities.cap_queues.q_tx_num)) {
+                dev_kfree_skb_any(skb);
+                return;
+        }
+
+        ath5k_tx_queue(hw, skb, &sc->txqs[qnum]);
+}
+
+
+static int
+ath5k_start(struct ieee80211_hw *hw)
+{
+        return ath5k_init_hw(hw->priv);
+}
+
+
+static void
+ath5k_stop(struct ieee80211_hw *hw)
+{
+        ath5k_stop_hw(hw->priv);
+}
+
+
+static int
+ath5k_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+        struct ath5k_softc *sc = hw->priv;
+        int ret;
+        struct ath5k_vif *avf = (void *)vif->drv_priv;
+
+        mutex_lock(&sc->lock);
+
+        if ((vif->type == NL80211_IFTYPE_AP ||
+             vif->type == NL80211_IFTYPE_ADHOC)
+            && (sc->num_ap_vifs + sc->num_adhoc_vifs) >= ATH_BCBUF) {
+                ret = -ELNRNG;
+                goto end;
+        }
+
+        /* Don't allow other interfaces if one ad-hoc is configured.
+         * TODO: Fix the problems with ad-hoc and multiple other interfaces.
+         * We would need to operate the HW in ad-hoc mode to allow TSF updates
+         * for the IBSS, but this breaks with additional AP or STA interfaces
+         * at the moment. */
+        if (sc->num_adhoc_vifs ||
+            (sc->nvifs && vif->type == NL80211_IFTYPE_ADHOC)) {
+                ATH5K_ERR(sc, "Only one single ad-hoc interface is allowed.\n");
+                ret = -ELNRNG;
+                goto end;
+        }
+
+        switch (vif->type) {
+        case NL80211_IFTYPE_AP:
+        case NL80211_IFTYPE_STATION:
+        case NL80211_IFTYPE_ADHOC:
+        case NL80211_IFTYPE_MESH_POINT:
+                avf->opmode = vif->type;
+                break;
+        default:
+                ret = -EOPNOTSUPP;
+                goto end;
+        }
+
+        sc->nvifs++;
+        ATH5K_DBG(sc, ATH5K_DEBUG_MODE, "add interface mode %d\n", avf->opmode);
+
+        /* Assign the vap/adhoc to a beacon xmit slot. */
+        if ((avf->opmode == NL80211_IFTYPE_AP) ||
+            (avf->opmode == NL80211_IFTYPE_ADHOC) ||
+            (avf->opmode == NL80211_IFTYPE_MESH_POINT)) {
+                int slot;
+
+                WARN_ON(list_empty(&sc->bcbuf));
+                avf->bbuf = list_first_entry(&sc->bcbuf, struct ath5k_buf,
+                                             list);
+                list_del(&avf->bbuf->list);
+
+                avf->bslot = 0;
+                for (slot = 0; slot < ATH_BCBUF; slot++) {
+                        if (!sc->bslot[slot]) {
+                                avf->bslot = slot;
+                                break;
+                        }
+                }
+                BUG_ON(sc->bslot[avf->bslot] != NULL);
+                sc->bslot[avf->bslot] = vif;
+                if (avf->opmode == NL80211_IFTYPE_AP)
+                        sc->num_ap_vifs++;
+                else if (avf->opmode == NL80211_IFTYPE_ADHOC)
+                        sc->num_adhoc_vifs++;
+        }
+
+        /* Any MAC address is fine, all others are included through the
+         * filter.
+         */
+        memcpy(&sc->lladdr, vif->addr, ETH_ALEN);
+        ath5k_hw_set_lladdr(sc->ah, vif->addr);
+
+        memcpy(&avf->lladdr, vif->addr, ETH_ALEN);
+
+        ath5k_update_bssid_mask_and_opmode(sc, vif);
+        ret = 0;
+end:
+        mutex_unlock(&sc->lock);
+        return ret;
+}
+
+
+static void
+ath5k_remove_interface(struct ieee80211_hw *hw,
+                       struct ieee80211_vif *vif)
+{
+        struct ath5k_softc *sc = hw->priv;
+        struct ath5k_vif *avf = (void *)vif->drv_priv;
+        unsigned int i;
+
+        mutex_lock(&sc->lock);
+        sc->nvifs--;
+
+        if (avf->bbuf) {
+                ath5k_txbuf_free_skb(sc, avf->bbuf);
+                list_add_tail(&avf->bbuf->list, &sc->bcbuf);
+                for (i = 0; i < ATH_BCBUF; i++) {
+                        if (sc->bslot[i] == vif) {
+                                sc->bslot[i] = NULL;
+                                break;
+                        }
+                }
+                avf->bbuf = NULL;
+        }
+        if (avf->opmode == NL80211_IFTYPE_AP)
+                sc->num_ap_vifs--;
+        else if (avf->opmode == NL80211_IFTYPE_ADHOC)
+                sc->num_adhoc_vifs--;
+
+        ath5k_update_bssid_mask_and_opmode(sc, NULL);
+        mutex_unlock(&sc->lock);
+}
+
+
+/*
+ * TODO: Phy disable/diversity etc
+ */
+static int
+ath5k_config(struct ieee80211_hw *hw, u32 changed)
+{
+        struct ath5k_softc *sc = hw->priv;
+        struct ath5k_hw *ah = sc->ah;
+        struct ieee80211_conf *conf = &hw->conf;
+        int ret = 0;
+        int i;
+
+        mutex_lock(&sc->lock);
+
+        if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+                ret = ath5k_chan_set(sc, conf->channel);
+                if (ret < 0)
+                        goto unlock;
+        }
+
+        if ((changed & IEEE80211_CONF_CHANGE_POWER) &&
+        (sc->power_level != conf->power_level)) {
+                sc->power_level = conf->power_level;
+
+                /* Half dB steps */
+                ath5k_hw_set_txpower_limit(ah, (conf->power_level * 2));
+        }
+
+        if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
+                ah->ah_retry_long = conf->long_frame_max_tx_count;
+                ah->ah_retry_short = conf->short_frame_max_tx_count;
+
+                for (i = 0; i < ah->ah_capabilities.cap_queues.q_tx_num; i++)
+                        ath5k_hw_set_tx_retry_limits(ah, i);
+        }
+
+        /* TODO:
+         * 1) Move this on config_interface and handle each case
+         * separately eg. when we have only one STA vif, use
+         * AR5K_ANTMODE_SINGLE_AP
+         *
+         * 2) Allow the user to change antenna mode eg. when only
+         * one antenna is present
+         *
+         * 3) Allow the user to set default/tx antenna when possible
+         *
+         * 4) Default mode should handle 90% of the cases, together
+         * with fixed a/b and single AP modes we should be able to
+         * handle 99%. Sectored modes are extreme cases and i still
+         * haven't found a usage for them. If we decide to support them,
+         * then we must allow the user to set how many tx antennas we
+         * have available
+         */
+        ath5k_hw_set_antenna_mode(ah, ah->ah_ant_mode);
+
+unlock:
+        mutex_unlock(&sc->lock);
+        return ret;
+}
+
+
+static void
+ath5k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+                       struct ieee80211_bss_conf *bss_conf, u32 changes)
+{
+        struct ath5k_vif *avf = (void *)vif->drv_priv;
+        struct ath5k_softc *sc = hw->priv;
+        struct ath5k_hw *ah = sc->ah;
+        struct ath_common *common = ath5k_hw_common(ah);
+        unsigned long flags;
+
+        mutex_lock(&sc->lock);
+
+        if (changes & BSS_CHANGED_BSSID) {
+                /* Cache for later use during resets */
+                memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
+                common->curaid = 0;
+                ath5k_hw_set_bssid(ah);
+                mmiowb();
+        }
+
+        if (changes & BSS_CHANGED_BEACON_INT)
+                sc->bintval = bss_conf->beacon_int;
+
+        if (changes & BSS_CHANGED_ERP_SLOT) {
+                int slot_time;
+
+                ah->ah_short_slot = bss_conf->use_short_slot;
+                slot_time = ath5k_hw_get_default_slottime(ah) +
+                            3 * ah->ah_coverage_class;
+                ath5k_hw_set_ifs_intervals(ah, slot_time);
+        }
+
+        if (changes & BSS_CHANGED_ASSOC) {
+                avf->assoc = bss_conf->assoc;
+                if (bss_conf->assoc)
+                        sc->assoc = bss_conf->assoc;
+                else
+                        sc->assoc = ath_any_vif_assoc(sc);
+
+                if (sc->opmode == NL80211_IFTYPE_STATION)
+                        set_beacon_filter(hw, sc->assoc);
+                ath5k_hw_set_ledstate(sc->ah, sc->assoc ?
+                        AR5K_LED_ASSOC : AR5K_LED_INIT);
+                if (bss_conf->assoc) {
+                        ATH5K_DBG(sc, ATH5K_DEBUG_ANY,
+                                  "Bss Info ASSOC %d, bssid: %pM\n",
+                                  bss_conf->aid, common->curbssid);
+                        common->curaid = bss_conf->aid;
+                        ath5k_hw_set_bssid(ah);
+                        /* Once ANI is available you would start it here */
+                }
+        }
+
+        if (changes & BSS_CHANGED_BEACON) {
+                spin_lock_irqsave(&sc->block, flags);
+                ath5k_beacon_update(hw, vif);
+                spin_unlock_irqrestore(&sc->block, flags);
+        }
+
+        if (changes & BSS_CHANGED_BEACON_ENABLED)
+                sc->enable_beacon = bss_conf->enable_beacon;
+
+        if (changes & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_ENABLED |
+                       BSS_CHANGED_BEACON_INT))
+                ath5k_beacon_config(sc);
+
+        mutex_unlock(&sc->lock);
+}
+
+
+static u64
+ath5k_prepare_multicast(struct ieee80211_hw *hw,
+                        struct netdev_hw_addr_list *mc_list)
+{
+        u32 mfilt[2], val;
+        u8 pos;
+        struct netdev_hw_addr *ha;
+
+        mfilt[0] = 0;
+        mfilt[1] = 1;
+
+        netdev_hw_addr_list_for_each(ha, mc_list) {
+                /* calculate XOR of eight 6-bit values */
+                val = get_unaligned_le32(ha->addr + 0);
+                pos = (val >> 18) ^ (val >> 12) ^ (val >> 6) ^ val;
+                val = get_unaligned_le32(ha->addr + 3);
+                pos ^= (val >> 18) ^ (val >> 12) ^ (val >> 6) ^ val;
+                pos &= 0x3f;
+                mfilt[pos / 32] |= (1 << (pos % 32));
+                /* XXX: we might be able to just do this instead,
+                * but not sure, needs testing, if we do use this we'd
+                * neet to inform below to not reset the mcast */
+                /* ath5k_hw_set_mcast_filterindex(ah,
+                 *      ha->addr[5]); */
+        }
+
+        return ((u64)(mfilt[1]) << 32) | mfilt[0];
+}
+
+
+/*
+ * o always accept unicast, broadcast, and multicast traffic
+ * o multicast traffic for all BSSIDs will be enabled if mac80211
+ *   says it should be
+ * o maintain current state of phy ofdm or phy cck error reception.
+ *   If the hardware detects any of these type of errors then
+ *   ath5k_hw_get_rx_filter() will pass to us the respective
+ *   hardware filters to be able to receive these type of frames.
+ * o probe request frames are accepted only when operating in
+ *   hostap, adhoc, or monitor modes
+ * o enable promiscuous mode according to the interface state
+ * o accept beacons:
+ *   - when operating in adhoc mode so the 802.11 layer creates
+ *     node table entries for peers,
+ *   - when operating in station mode for collecting rssi data when
+ *     the station is otherwise quiet, or
+ *   - when scanning
+ */
+static void
+ath5k_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
+                       unsigned int *new_flags, u64 multicast)
+{
+#define SUPPORTED_FIF_FLAGS \
+        (FIF_PROMISC_IN_BSS |  FIF_ALLMULTI | FIF_FCSFAIL | \
+        FIF_PLCPFAIL | FIF_CONTROL | FIF_OTHER_BSS | \
+        FIF_BCN_PRBRESP_PROMISC)
+
+        struct ath5k_softc *sc = hw->priv;
+        struct ath5k_hw *ah = sc->ah;
+        u32 mfilt[2], rfilt;
+        struct ath5k_vif_iter_data iter_data; /* to count STA interfaces */
+
+        mutex_lock(&sc->lock);
+
+        mfilt[0] = multicast;
+        mfilt[1] = multicast >> 32;
+
+        /* Only deal with supported flags */
+        changed_flags &= SUPPORTED_FIF_FLAGS;
+        *new_flags &= SUPPORTED_FIF_FLAGS;
+
+        /* If HW detects any phy or radar errors, leave those filters on.
+         * Also, always enable Unicast, Broadcasts and Multicast
+         * XXX: move unicast, bssid broadcasts and multicast to mac80211 */
+        rfilt = (ath5k_hw_get_rx_filter(ah) & (AR5K_RX_FILTER_PHYERR)) |
+                (AR5K_RX_FILTER_UCAST | AR5K_RX_FILTER_BCAST |
+                AR5K_RX_FILTER_MCAST);
+
+        if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) {
+                if (*new_flags & FIF_PROMISC_IN_BSS)
+                        __set_bit(ATH_STAT_PROMISC, sc->status);
+                else
+                        __clear_bit(ATH_STAT_PROMISC, sc->status);
+        }
+
+        if (test_bit(ATH_STAT_PROMISC, sc->status))
+                rfilt |= AR5K_RX_FILTER_PROM;
+
+        /* Note, AR5K_RX_FILTER_MCAST is already enabled */
+        if (*new_flags & FIF_ALLMULTI) {
+                mfilt[0] =  ~0;
+                mfilt[1] =  ~0;
+        }
+
+        /* This is the best we can do */
+        if (*new_flags & (FIF_FCSFAIL | FIF_PLCPFAIL))
+                rfilt |= AR5K_RX_FILTER_PHYERR;
+
+        /* FIF_BCN_PRBRESP_PROMISC really means to enable beacons
+        * and probes for any BSSID */
+        if ((*new_flags & FIF_BCN_PRBRESP_PROMISC) || (sc->nvifs > 1))
+                rfilt |= AR5K_RX_FILTER_BEACON;
+
+        /* FIF_CONTROL doc says that if FIF_PROMISC_IN_BSS is not
+         * set we should only pass on control frames for this
+         * station. This needs testing. I believe right now this
+         * enables *all* control frames, which is OK.. but
+         * but we should see if we can improve on granularity */
+        if (*new_flags & FIF_CONTROL)
+                rfilt |= AR5K_RX_FILTER_CONTROL;
+
+        /* Additional settings per mode -- this is per ath5k */
+
+        /* XXX move these to mac80211, and add a beacon IFF flag to mac80211 */
+
+        switch (sc->opmode) {
+        case NL80211_IFTYPE_MESH_POINT:
+                rfilt |= AR5K_RX_FILTER_CONTROL |
+                         AR5K_RX_FILTER_BEACON |
+                         AR5K_RX_FILTER_PROBEREQ |
+                         AR5K_RX_FILTER_PROM;
+                break;
+        case NL80211_IFTYPE_AP:
+        case NL80211_IFTYPE_ADHOC:
+                rfilt |= AR5K_RX_FILTER_PROBEREQ |
+                         AR5K_RX_FILTER_BEACON;
+                break;
+        case NL80211_IFTYPE_STATION:
+                if (sc->assoc)
+                        rfilt |= AR5K_RX_FILTER_BEACON;
+        default:
+                break;
+        }
+
+        iter_data.hw_macaddr = NULL;
+        iter_data.n_stas = 0;
+        iter_data.need_set_hw_addr = false;
+        ieee80211_iterate_active_interfaces_atomic(sc->hw, ath5k_vif_iter,
+                                                   &iter_data);
+
+        /* Set up RX Filter */
+        if (iter_data.n_stas > 1) {
+                /* If you have multiple STA interfaces connected to
+                 * different APs, ARPs are not received (most of the time?)
+                 * Enabling PROMISC appears to fix that probem.
+                 */
+                rfilt |= AR5K_RX_FILTER_PROM;
+        }
+
+        /* Set filters */
+        ath5k_hw_set_rx_filter(ah, rfilt);
+
+        /* Set multicast bits */
+        ath5k_hw_set_mcast_filter(ah, mfilt[0], mfilt[1]);
+        /* Set the cached hw filter flags, this will later actually
+         * be set in HW */
+        sc->filter_flags = rfilt;
+
+        mutex_unlock(&sc->lock);
+}
+
+
+static int
+ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+              struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+              struct ieee80211_key_conf *key)
+{
+        struct ath5k_softc *sc = hw->priv;
+        struct ath5k_hw *ah = sc->ah;
+        struct ath_common *common = ath5k_hw_common(ah);
+        int ret = 0;
+
+        if (ath5k_modparam_nohwcrypt)
+                return -EOPNOTSUPP;
+
+        switch (key->cipher) {
+        case WLAN_CIPHER_SUITE_WEP40:
+        case WLAN_CIPHER_SUITE_WEP104:
+        case WLAN_CIPHER_SUITE_TKIP:
+                break;
+        case WLAN_CIPHER_SUITE_CCMP:
+                if (common->crypt_caps & ATH_CRYPT_CAP_CIPHER_AESCCM)
+                        break;
+                return -EOPNOTSUPP;
+        default:
+                WARN_ON(1);
+                return -EINVAL;
+        }
+
+        mutex_lock(&sc->lock);
+
+        switch (cmd) {
+        case SET_KEY:
+                ret = ath_key_config(common, vif, sta, key);
+                if (ret >= 0) {
+                        key->hw_key_idx = ret;
+                        /* push IV and Michael MIC generation to stack */
+                        key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+                        if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
+                                key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
+                        if (key->cipher == WLAN_CIPHER_SUITE_CCMP)
+                                key->flags |= IEEE80211_KEY_FLAG_SW_MGMT;
+                        ret = 0;
+                }
+                break;
+        case DISABLE_KEY:
+                ath_key_delete(common, key);
+                break;
+        default:
+                ret = -EINVAL;
+        }
+
+        mmiowb();
+        mutex_unlock(&sc->lock);
+        return ret;
+}
+
+
+static void
+ath5k_sw_scan_start(struct ieee80211_hw *hw)
+{
+        struct ath5k_softc *sc = hw->priv;
+        if (!sc->assoc)
+                ath5k_hw_set_ledstate(sc->ah, AR5K_LED_SCAN);
+}
+
+
+static void
+ath5k_sw_scan_complete(struct ieee80211_hw *hw)
+{
+        struct ath5k_softc *sc = hw->priv;
+        ath5k_hw_set_ledstate(sc->ah, sc->assoc ?
+                AR5K_LED_ASSOC : AR5K_LED_INIT);
+}
+
+
+static int
+ath5k_get_stats(struct ieee80211_hw *hw,
+                struct ieee80211_low_level_stats *stats)
+{
+        struct ath5k_softc *sc = hw->priv;
+
+        /* Force update */
+        ath5k_hw_update_mib_counters(sc->ah);
+
+        stats->dot11ACKFailureCount = sc->stats.ack_fail;
+        stats->dot11RTSFailureCount = sc->stats.rts_fail;
+        stats->dot11RTSSuccessCount = sc->stats.rts_ok;
+        stats->dot11FCSErrorCount = sc->stats.fcs_error;
+
+        return 0;
+}
+
+
+static int
+ath5k_conf_tx(struct ieee80211_hw *hw, u16 queue,
+              const struct ieee80211_tx_queue_params *params)
+{
+        struct ath5k_softc *sc = hw->priv;
+        struct ath5k_hw *ah = sc->ah;
+        struct ath5k_txq_info qi;
+        int ret = 0;
+
+        if (queue >= ah->ah_capabilities.cap_queues.q_tx_num)
+                return 0;
+
+        mutex_lock(&sc->lock);
+
+        ath5k_hw_get_tx_queueprops(ah, queue, &qi);
+
+        qi.tqi_aifs = params->aifs;
+        qi.tqi_cw_min = params->cw_min;
+        qi.tqi_cw_max = params->cw_max;
+        qi.tqi_burst_time = params->txop;
+
+        ATH5K_DBG(sc, ATH5K_DEBUG_ANY,
+                  "Configure tx [queue %d],  "
+                  "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
+                  queue, params->aifs, params->cw_min,
+                  params->cw_max, params->txop);
+
+        if (ath5k_hw_set_tx_queueprops(ah, queue, &qi)) {
+                ATH5K_ERR(sc,
+                          "Unable to update hardware queue %u!\n", queue);
+                ret = -EIO;
+        } else
+                ath5k_hw_reset_tx_queue(ah, queue);
+
+        mutex_unlock(&sc->lock);
+
+        return ret;
+}
+
+
+static u64
+ath5k_get_tsf(struct ieee80211_hw *hw)
+{
+        struct ath5k_softc *sc = hw->priv;
+
+        return ath5k_hw_get_tsf64(sc->ah);
+}
+
+
+static void
+ath5k_set_tsf(struct ieee80211_hw *hw, u64 tsf)
+{
+        struct ath5k_softc *sc = hw->priv;
+
+        ath5k_hw_set_tsf64(sc->ah, tsf);
+}
+
+
+static void
+ath5k_reset_tsf(struct ieee80211_hw *hw)
+{
+        struct ath5k_softc *sc = hw->priv;
+
+        /*
+         * in IBSS mode we need to update the beacon timers too.
+         * this will also reset the TSF if we call it with 0
+         */
+        if (sc->opmode == NL80211_IFTYPE_ADHOC)
+                ath5k_beacon_update_timers(sc, 0);
+        else
+                ath5k_hw_reset_tsf(sc->ah);
+}
+
+
+static int
+ath5k_get_survey(struct ieee80211_hw *hw, int idx, struct survey_info *survey)
+{
+        struct ath5k_softc *sc = hw->priv;
+        struct ieee80211_conf *conf = &hw->conf;
+        struct ath_common *common = ath5k_hw_common(sc->ah);
+        struct ath_cycle_counters *cc = &common->cc_survey;
+        unsigned int div = common->clockrate * 1000;
+
+        if (idx != 0)
+                return -ENOENT;
+
+        spin_lock_bh(&common->cc_lock);
+        ath_hw_cycle_counters_update(common);
+        if (cc->cycles > 0) {
+                sc->survey.channel_time += cc->cycles / div;
+                sc->survey.channel_time_busy += cc->rx_busy / div;
+                sc->survey.channel_time_rx += cc->rx_frame / div;
+                sc->survey.channel_time_tx += cc->tx_frame / div;
+        }
+        memset(cc, 0, sizeof(*cc));
+        spin_unlock_bh(&common->cc_lock);
+
+        memcpy(survey, &sc->survey, sizeof(*survey));
+
+        survey->channel = conf->channel;
+        survey->noise = sc->ah->ah_noise_floor;
+        survey->filled = SURVEY_INFO_NOISE_DBM |
+                        SURVEY_INFO_CHANNEL_TIME |
+                        SURVEY_INFO_CHANNEL_TIME_BUSY |
+                        SURVEY_INFO_CHANNEL_TIME_RX |
+                        SURVEY_INFO_CHANNEL_TIME_TX;
+
+        return 0;
+}
+
+
+/**
+ * ath5k_set_coverage_class - Set IEEE 802.11 coverage class
+ *
+ * @hw: struct ieee80211_hw pointer
+ * @coverage_class: IEEE 802.11 coverage class number
+ *
+ * Mac80211 callback. Sets slot time, ACK timeout and CTS timeout for given
+ * coverage class. The values are persistent, they are restored after device
+ * reset.
+ */
+static void
+ath5k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
+{
+        struct ath5k_softc *sc = hw->priv;
+
+        mutex_lock(&sc->lock);
+        ath5k_hw_set_coverage_class(sc->ah, coverage_class);
+        mutex_unlock(&sc->lock);
+}
+
+
+static int
+ath5k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
+{
+        struct ath5k_softc *sc = hw->priv;
+
+        if (tx_ant == 1 && rx_ant == 1)
+                ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_A);
+        else if (tx_ant == 2 && rx_ant == 2)
+                ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_B);
+        else if ((tx_ant & 3) == 3 && (rx_ant & 3) == 3)
+                ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_DEFAULT);
+        else
+                return -EINVAL;
+        return 0;
+}
+
+
+static int
+ath5k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
+{
+        struct ath5k_softc *sc = hw->priv;
+
+        switch (sc->ah->ah_ant_mode) {
+        case AR5K_ANTMODE_FIXED_A:
+                *tx_ant = 1; *rx_ant = 1; break;
+        case AR5K_ANTMODE_FIXED_B:
+                *tx_ant = 2; *rx_ant = 2; break;
+        case AR5K_ANTMODE_DEFAULT:
+                *tx_ant = 3; *rx_ant = 3; break;
+        }
+        return 0;
+}
+
+
+static void ath5k_get_ringparam(struct ieee80211_hw *hw,
+                                u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
+{
+        struct ath5k_softc *sc = hw->priv;
+
+        *tx = sc->txqs[AR5K_TX_QUEUE_ID_DATA_MIN].txq_max;
+
+        *tx_max = ATH5K_TXQ_LEN_MAX;
+        *rx = *rx_max = ATH_RXBUF;
+}
+
+
+static int ath5k_set_ringparam(struct ieee80211_hw *hw, u32 tx, u32 rx)
+{
+        struct ath5k_softc *sc = hw->priv;
+        u16 qnum;
+
+        /* only support setting tx ring size for now */
+        if (rx != ATH_RXBUF)
+                return -EINVAL;
+
+        /* restrict tx ring size min/max */
+        if (!tx || tx > ATH5K_TXQ_LEN_MAX)
+                return -EINVAL;
+
+        for (qnum = 0; qnum < ARRAY_SIZE(sc->txqs); qnum++) {
+                if (!sc->txqs[qnum].setup)
+                        continue;
+                if (sc->txqs[qnum].qnum < AR5K_TX_QUEUE_ID_DATA_MIN ||
+                    sc->txqs[qnum].qnum > AR5K_TX_QUEUE_ID_DATA_MAX)
+                        continue;
+
+                sc->txqs[qnum].txq_max = tx;
+                if (sc->txqs[qnum].txq_len >= sc->txqs[qnum].txq_max)
+                        ieee80211_stop_queue(hw, sc->txqs[qnum].qnum);
+        }
+
+        return 0;
+}
+
+
+const struct ieee80211_ops ath5k_hw_ops = {
+        .tx                     = ath5k_tx,
+        .start                  = ath5k_start,
+        .stop                   = ath5k_stop,
+        .add_interface          = ath5k_add_interface,
+        /* .change_interface    = not implemented */
+        .remove_interface       = ath5k_remove_interface,
+        .config                 = ath5k_config,
+        .bss_info_changed       = ath5k_bss_info_changed,
+        .prepare_multicast      = ath5k_prepare_multicast,
+        .configure_filter       = ath5k_configure_filter,
+        /* .set_tim             = not implemented */
+        .set_key                = ath5k_set_key,
+        /* .update_tkip_key     = not implemented */
+        /* .hw_scan             = not implemented */
+        .sw_scan_start          = ath5k_sw_scan_start,
+        .sw_scan_complete       = ath5k_sw_scan_complete,
+        .get_stats              = ath5k_get_stats,
+        /* .get_tkip_seq        = not implemented */
+        /* .set_frag_threshold  = not implemented */
+        /* .set_rts_threshold   = not implemented */
+        /* .sta_add             = not implemented */
+        /* .sta_remove          = not implemented */
+        /* .sta_notify          = not implemented */
+        .conf_tx                = ath5k_conf_tx,
+        .get_tsf                = ath5k_get_tsf,
+        .set_tsf                = ath5k_set_tsf,
+        .reset_tsf              = ath5k_reset_tsf,
+        /* .tx_last_beacon      = not implemented */
+        /* .ampdu_action        = not needed */
+        .get_survey             = ath5k_get_survey,
+        .set_coverage_class     = ath5k_set_coverage_class,
+        /* .rfkill_poll         = not implemented */
+        /* .flush               = not implemented */
+        /* .channel_switch      = not implemented */
+        /* .napi_poll           = not implemented */
+        .set_antenna            = ath5k_set_antenna,
+        .get_antenna            = ath5k_get_antenna,
+        .set_ringparam          = ath5k_set_ringparam,
+        .get_ringparam          = ath5k_get_ringparam,
+};