2 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
3 * Copyright (c) 2004-2005 Atheros Communications, Inc.
4 * Copyright (c) 2006 Devicescape Software, Inc.
5 * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
6 * Copyright (c) 2007 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
7 * Copyright (c) 2010 Bruno Randolf <br1@einfach.org>
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
19 * redistribution must be conditioned upon including a substantially
20 * similar Disclaimer requirement for further binary redistribution.
21 * 3. Neither the names of the above-listed copyright holders nor the names
22 * of any contributors may be used to endorse or promote products derived
23 * from this software without specific prior written permission.
25 * Alternatively, this software may be distributed under the terms of the
26 * GNU General Public License ("GPL") version 2 as published by the Free
27 * Software Foundation.
30 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
31 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
32 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
33 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
34 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
35 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
36 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
37 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
38 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
39 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
40 * THE POSSIBILITY OF SUCH DAMAGES.
44 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
46 #include <net/mac80211.h>
47 #include <asm/unaligned.h>
53 /********************\
54 * Mac80211 functions *
55 \********************/
58 ath5k_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
61 struct ath5k_hw *ah = hw->priv;
62 u16 qnum = skb_get_queue_mapping(skb);
64 if (WARN_ON(qnum >= ah->ah_capabilities.cap_queues.q_tx_num)) {
65 dev_kfree_skb_any(skb);
69 ath5k_tx_queue(hw, skb, &ah->txqs[qnum]);
74 ath5k_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
76 struct ath5k_hw *ah = hw->priv;
78 struct ath5k_vif *avf = (void *)vif->drv_priv;
80 mutex_lock(&ah->lock);
82 if ((vif->type == NL80211_IFTYPE_AP ||
83 vif->type == NL80211_IFTYPE_ADHOC)
84 && (ah->num_ap_vifs + ah->num_adhoc_vifs) >= ATH_BCBUF) {
89 /* Don't allow other interfaces if one ad-hoc is configured.
90 * TODO: Fix the problems with ad-hoc and multiple other interfaces.
91 * We would need to operate the HW in ad-hoc mode to allow TSF updates
92 * for the IBSS, but this breaks with additional AP or STA interfaces
94 if (ah->num_adhoc_vifs ||
95 (ah->nvifs && vif->type == NL80211_IFTYPE_ADHOC)) {
96 ATH5K_ERR(ah, "Only one single ad-hoc interface is allowed.\n");
102 case NL80211_IFTYPE_AP:
103 case NL80211_IFTYPE_STATION:
104 case NL80211_IFTYPE_ADHOC:
105 case NL80211_IFTYPE_MESH_POINT:
106 avf->opmode = vif->type;
114 ATH5K_DBG(ah, ATH5K_DEBUG_MODE, "add interface mode %d\n", avf->opmode);
116 /* Assign the vap/adhoc to a beacon xmit slot. */
117 if ((avf->opmode == NL80211_IFTYPE_AP) ||
118 (avf->opmode == NL80211_IFTYPE_ADHOC) ||
119 (avf->opmode == NL80211_IFTYPE_MESH_POINT)) {
122 WARN_ON(list_empty(&ah->bcbuf));
123 avf->bbuf = list_first_entry(&ah->bcbuf, struct ath5k_buf,
125 list_del(&avf->bbuf->list);
128 for (slot = 0; slot < ATH_BCBUF; slot++) {
129 if (!ah->bslot[slot]) {
134 BUG_ON(ah->bslot[avf->bslot] != NULL);
135 ah->bslot[avf->bslot] = vif;
136 if (avf->opmode == NL80211_IFTYPE_AP)
138 else if (avf->opmode == NL80211_IFTYPE_ADHOC)
139 ah->num_adhoc_vifs++;
140 else if (avf->opmode == NL80211_IFTYPE_MESH_POINT)
144 /* Any MAC address is fine, all others are included through the
147 ath5k_hw_set_lladdr(ah, vif->addr);
149 ath5k_update_bssid_mask_and_opmode(ah, vif);
152 mutex_unlock(&ah->lock);
158 ath5k_remove_interface(struct ieee80211_hw *hw,
159 struct ieee80211_vif *vif)
161 struct ath5k_hw *ah = hw->priv;
162 struct ath5k_vif *avf = (void *)vif->drv_priv;
165 mutex_lock(&ah->lock);
169 ath5k_txbuf_free_skb(ah, avf->bbuf);
170 list_add_tail(&avf->bbuf->list, &ah->bcbuf);
171 for (i = 0; i < ATH_BCBUF; i++) {
172 if (ah->bslot[i] == vif) {
179 if (avf->opmode == NL80211_IFTYPE_AP)
181 else if (avf->opmode == NL80211_IFTYPE_ADHOC)
182 ah->num_adhoc_vifs--;
183 else if (avf->opmode == NL80211_IFTYPE_MESH_POINT)
186 ath5k_update_bssid_mask_and_opmode(ah, NULL);
187 mutex_unlock(&ah->lock);
192 * TODO: Phy disable/diversity etc
195 ath5k_config(struct ieee80211_hw *hw, u32 changed)
197 struct ath5k_hw *ah = hw->priv;
198 struct ieee80211_conf *conf = &hw->conf;
202 mutex_lock(&ah->lock);
204 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
205 ret = ath5k_chan_set(ah, conf->channel);
210 if ((changed & IEEE80211_CONF_CHANGE_POWER) &&
211 (ah->ah_txpower.txp_requested != conf->power_level)) {
212 ah->ah_txpower.txp_requested = conf->power_level;
215 ath5k_hw_set_txpower_limit(ah, (conf->power_level * 2));
218 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
219 ah->ah_retry_long = conf->long_frame_max_tx_count;
220 ah->ah_retry_short = conf->short_frame_max_tx_count;
222 for (i = 0; i < ah->ah_capabilities.cap_queues.q_tx_num; i++)
223 ath5k_hw_set_tx_retry_limits(ah, i);
227 * 1) Move this on config_interface and handle each case
228 * separately eg. when we have only one STA vif, use
229 * AR5K_ANTMODE_SINGLE_AP
231 * 2) Allow the user to change antenna mode eg. when only
232 * one antenna is present
234 * 3) Allow the user to set default/tx antenna when possible
236 * 4) Default mode should handle 90% of the cases, together
237 * with fixed a/b and single AP modes we should be able to
238 * handle 99%. Sectored modes are extreme cases and i still
239 * haven't found a usage for them. If we decide to support them,
240 * then we must allow the user to set how many tx antennas we
243 ath5k_hw_set_antenna_mode(ah, ah->ah_ant_mode);
246 mutex_unlock(&ah->lock);
252 ath5k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
253 struct ieee80211_bss_conf *bss_conf, u32 changes)
255 struct ath5k_vif *avf = (void *)vif->drv_priv;
256 struct ath5k_hw *ah = hw->priv;
257 struct ath_common *common = ath5k_hw_common(ah);
260 mutex_lock(&ah->lock);
262 if (changes & BSS_CHANGED_BSSID) {
263 /* Cache for later use during resets */
264 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
266 ath5k_hw_set_bssid(ah);
270 if (changes & BSS_CHANGED_BEACON_INT)
271 ah->bintval = bss_conf->beacon_int;
273 if (changes & BSS_CHANGED_ERP_SLOT) {
276 ah->ah_short_slot = bss_conf->use_short_slot;
277 slot_time = ath5k_hw_get_default_slottime(ah) +
278 3 * ah->ah_coverage_class;
279 ath5k_hw_set_ifs_intervals(ah, slot_time);
282 if (changes & BSS_CHANGED_ASSOC) {
283 avf->assoc = bss_conf->assoc;
285 ah->assoc = bss_conf->assoc;
287 ah->assoc = ath5k_any_vif_assoc(ah);
289 if (ah->opmode == NL80211_IFTYPE_STATION)
290 ath5k_set_beacon_filter(hw, ah->assoc);
291 ath5k_hw_set_ledstate(ah, ah->assoc ?
292 AR5K_LED_ASSOC : AR5K_LED_INIT);
293 if (bss_conf->assoc) {
294 ATH5K_DBG(ah, ATH5K_DEBUG_ANY,
295 "Bss Info ASSOC %d, bssid: %pM\n",
296 bss_conf->aid, common->curbssid);
297 common->curaid = bss_conf->aid;
298 ath5k_hw_set_bssid(ah);
299 /* Once ANI is available you would start it here */
303 if (changes & BSS_CHANGED_BEACON) {
304 spin_lock_irqsave(&ah->block, flags);
305 ath5k_beacon_update(hw, vif);
306 spin_unlock_irqrestore(&ah->block, flags);
309 if (changes & BSS_CHANGED_BEACON_ENABLED)
310 ah->enable_beacon = bss_conf->enable_beacon;
312 if (changes & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_ENABLED |
313 BSS_CHANGED_BEACON_INT))
314 ath5k_beacon_config(ah);
316 mutex_unlock(&ah->lock);
321 ath5k_prepare_multicast(struct ieee80211_hw *hw,
322 struct netdev_hw_addr_list *mc_list)
326 struct netdev_hw_addr *ha;
331 netdev_hw_addr_list_for_each(ha, mc_list) {
332 /* calculate XOR of eight 6-bit values */
333 val = get_unaligned_le32(ha->addr + 0);
334 pos = (val >> 18) ^ (val >> 12) ^ (val >> 6) ^ val;
335 val = get_unaligned_le32(ha->addr + 3);
336 pos ^= (val >> 18) ^ (val >> 12) ^ (val >> 6) ^ val;
338 mfilt[pos / 32] |= (1 << (pos % 32));
339 /* XXX: we might be able to just do this instead,
340 * but not sure, needs testing, if we do use this we'd
341 * need to inform below not to reset the mcast */
342 /* ath5k_hw_set_mcast_filterindex(ah,
346 return ((u64)(mfilt[1]) << 32) | mfilt[0];
351 * o always accept unicast, broadcast, and multicast traffic
352 * o multicast traffic for all BSSIDs will be enabled if mac80211
354 * o maintain current state of phy ofdm or phy cck error reception.
355 * If the hardware detects any of these type of errors then
356 * ath5k_hw_get_rx_filter() will pass to us the respective
357 * hardware filters to be able to receive these type of frames.
358 * o probe request frames are accepted only when operating in
359 * hostap, adhoc, or monitor modes
360 * o enable promiscuous mode according to the interface state
362 * - when operating in adhoc mode so the 802.11 layer creates
363 * node table entries for peers,
364 * - when operating in station mode for collecting rssi data when
365 * the station is otherwise quiet, or
369 ath5k_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
370 unsigned int *new_flags, u64 multicast)
372 #define SUPPORTED_FIF_FLAGS \
373 (FIF_PROMISC_IN_BSS | FIF_ALLMULTI | FIF_FCSFAIL | \
374 FIF_PLCPFAIL | FIF_CONTROL | FIF_OTHER_BSS | \
375 FIF_BCN_PRBRESP_PROMISC)
377 struct ath5k_hw *ah = hw->priv;
379 struct ath5k_vif_iter_data iter_data; /* to count STA interfaces */
381 mutex_lock(&ah->lock);
383 mfilt[0] = multicast;
384 mfilt[1] = multicast >> 32;
386 /* Only deal with supported flags */
387 changed_flags &= SUPPORTED_FIF_FLAGS;
388 *new_flags &= SUPPORTED_FIF_FLAGS;
390 /* If HW detects any phy or radar errors, leave those filters on.
391 * Also, always enable Unicast, Broadcasts and Multicast
392 * XXX: move unicast, bssid broadcasts and multicast to mac80211 */
393 rfilt = (ath5k_hw_get_rx_filter(ah) & (AR5K_RX_FILTER_PHYERR)) |
394 (AR5K_RX_FILTER_UCAST | AR5K_RX_FILTER_BCAST |
395 AR5K_RX_FILTER_MCAST);
397 if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) {
398 if (*new_flags & FIF_PROMISC_IN_BSS)
399 __set_bit(ATH_STAT_PROMISC, ah->status);
401 __clear_bit(ATH_STAT_PROMISC, ah->status);
404 if (test_bit(ATH_STAT_PROMISC, ah->status))
405 rfilt |= AR5K_RX_FILTER_PROM;
407 /* Note, AR5K_RX_FILTER_MCAST is already enabled */
408 if (*new_flags & FIF_ALLMULTI) {
413 /* This is the best we can do */
414 if (*new_flags & (FIF_FCSFAIL | FIF_PLCPFAIL))
415 rfilt |= AR5K_RX_FILTER_PHYERR;
417 /* FIF_BCN_PRBRESP_PROMISC really means to enable beacons
418 * and probes for any BSSID */
419 if ((*new_flags & FIF_BCN_PRBRESP_PROMISC) || (ah->nvifs > 1))
420 rfilt |= AR5K_RX_FILTER_BEACON;
422 /* FIF_CONTROL doc says that if FIF_PROMISC_IN_BSS is not
423 * set we should only pass on control frames for this
424 * station. This needs testing. I believe right now this
425 * enables *all* control frames, which is OK.. but
426 * but we should see if we can improve on granularity */
427 if (*new_flags & FIF_CONTROL)
428 rfilt |= AR5K_RX_FILTER_CONTROL;
430 /* Additional settings per mode -- this is per ath5k */
432 /* XXX move these to mac80211, and add a beacon IFF flag to mac80211 */
434 switch (ah->opmode) {
435 case NL80211_IFTYPE_MESH_POINT:
436 rfilt |= AR5K_RX_FILTER_CONTROL |
437 AR5K_RX_FILTER_BEACON |
438 AR5K_RX_FILTER_PROBEREQ |
441 case NL80211_IFTYPE_AP:
442 case NL80211_IFTYPE_ADHOC:
443 rfilt |= AR5K_RX_FILTER_PROBEREQ |
444 AR5K_RX_FILTER_BEACON;
446 case NL80211_IFTYPE_STATION:
448 rfilt |= AR5K_RX_FILTER_BEACON;
453 iter_data.hw_macaddr = NULL;
454 iter_data.n_stas = 0;
455 iter_data.need_set_hw_addr = false;
456 ieee80211_iterate_active_interfaces_atomic(ah->hw, ath5k_vif_iter,
459 /* Set up RX Filter */
460 if (iter_data.n_stas > 1) {
461 /* If you have multiple STA interfaces connected to
462 * different APs, ARPs are not received (most of the time?)
463 * Enabling PROMISC appears to fix that problem.
465 rfilt |= AR5K_RX_FILTER_PROM;
469 ath5k_hw_set_rx_filter(ah, rfilt);
471 /* Set multicast bits */
472 ath5k_hw_set_mcast_filter(ah, mfilt[0], mfilt[1]);
473 /* Set the cached hw filter flags, this will later actually
475 ah->filter_flags = rfilt;
477 mutex_unlock(&ah->lock);
482 ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
483 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
484 struct ieee80211_key_conf *key)
486 struct ath5k_hw *ah = hw->priv;
487 struct ath_common *common = ath5k_hw_common(ah);
490 if (ath5k_modparam_nohwcrypt)
493 if (vif->type == NL80211_IFTYPE_ADHOC &&
494 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
495 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
496 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
497 /* don't program group keys when using IBSS_RSN */
501 switch (key->cipher) {
502 case WLAN_CIPHER_SUITE_WEP40:
503 case WLAN_CIPHER_SUITE_WEP104:
504 case WLAN_CIPHER_SUITE_TKIP:
506 case WLAN_CIPHER_SUITE_CCMP:
507 if (common->crypt_caps & ATH_CRYPT_CAP_CIPHER_AESCCM)
515 mutex_lock(&ah->lock);
519 ret = ath_key_config(common, vif, sta, key);
521 key->hw_key_idx = ret;
522 /* push IV and Michael MIC generation to stack */
523 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
524 if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
525 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
526 if (key->cipher == WLAN_CIPHER_SUITE_CCMP)
527 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT;
532 ath_key_delete(common, key);
539 mutex_unlock(&ah->lock);
545 ath5k_sw_scan_start(struct ieee80211_hw *hw)
547 struct ath5k_hw *ah = hw->priv;
549 ath5k_hw_set_ledstate(ah, AR5K_LED_SCAN);
554 ath5k_sw_scan_complete(struct ieee80211_hw *hw)
556 struct ath5k_hw *ah = hw->priv;
557 ath5k_hw_set_ledstate(ah, ah->assoc ?
558 AR5K_LED_ASSOC : AR5K_LED_INIT);
563 ath5k_get_stats(struct ieee80211_hw *hw,
564 struct ieee80211_low_level_stats *stats)
566 struct ath5k_hw *ah = hw->priv;
569 ath5k_hw_update_mib_counters(ah);
571 stats->dot11ACKFailureCount = ah->stats.ack_fail;
572 stats->dot11RTSFailureCount = ah->stats.rts_fail;
573 stats->dot11RTSSuccessCount = ah->stats.rts_ok;
574 stats->dot11FCSErrorCount = ah->stats.fcs_error;
581 ath5k_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
582 const struct ieee80211_tx_queue_params *params)
584 struct ath5k_hw *ah = hw->priv;
585 struct ath5k_txq_info qi;
588 if (queue >= ah->ah_capabilities.cap_queues.q_tx_num)
591 mutex_lock(&ah->lock);
593 ath5k_hw_get_tx_queueprops(ah, queue, &qi);
595 qi.tqi_aifs = params->aifs;
596 qi.tqi_cw_min = params->cw_min;
597 qi.tqi_cw_max = params->cw_max;
598 qi.tqi_burst_time = params->txop * 32;
600 ATH5K_DBG(ah, ATH5K_DEBUG_ANY,
601 "Configure tx [queue %d], "
602 "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
603 queue, params->aifs, params->cw_min,
604 params->cw_max, params->txop);
606 if (ath5k_hw_set_tx_queueprops(ah, queue, &qi)) {
608 "Unable to update hardware queue %u!\n", queue);
611 ath5k_hw_reset_tx_queue(ah, queue);
613 mutex_unlock(&ah->lock);
620 ath5k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
622 struct ath5k_hw *ah = hw->priv;
624 return ath5k_hw_get_tsf64(ah);
629 ath5k_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u64 tsf)
631 struct ath5k_hw *ah = hw->priv;
633 ath5k_hw_set_tsf64(ah, tsf);
638 ath5k_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
640 struct ath5k_hw *ah = hw->priv;
643 * in IBSS mode we need to update the beacon timers too.
644 * this will also reset the TSF if we call it with 0
646 if (ah->opmode == NL80211_IFTYPE_ADHOC)
647 ath5k_beacon_update_timers(ah, 0);
649 ath5k_hw_reset_tsf(ah);
654 ath5k_get_survey(struct ieee80211_hw *hw, int idx, struct survey_info *survey)
656 struct ath5k_hw *ah = hw->priv;
657 struct ieee80211_conf *conf = &hw->conf;
658 struct ath_common *common = ath5k_hw_common(ah);
659 struct ath_cycle_counters *cc = &common->cc_survey;
660 unsigned int div = common->clockrate * 1000;
665 spin_lock_bh(&common->cc_lock);
666 ath_hw_cycle_counters_update(common);
667 if (cc->cycles > 0) {
668 ah->survey.channel_time += cc->cycles / div;
669 ah->survey.channel_time_busy += cc->rx_busy / div;
670 ah->survey.channel_time_rx += cc->rx_frame / div;
671 ah->survey.channel_time_tx += cc->tx_frame / div;
673 memset(cc, 0, sizeof(*cc));
674 spin_unlock_bh(&common->cc_lock);
676 memcpy(survey, &ah->survey, sizeof(*survey));
678 survey->channel = conf->channel;
679 survey->noise = ah->ah_noise_floor;
680 survey->filled = SURVEY_INFO_NOISE_DBM |
681 SURVEY_INFO_CHANNEL_TIME |
682 SURVEY_INFO_CHANNEL_TIME_BUSY |
683 SURVEY_INFO_CHANNEL_TIME_RX |
684 SURVEY_INFO_CHANNEL_TIME_TX;
691 * ath5k_set_coverage_class - Set IEEE 802.11 coverage class
693 * @hw: struct ieee80211_hw pointer
694 * @coverage_class: IEEE 802.11 coverage class number
696 * Mac80211 callback. Sets slot time, ACK timeout and CTS timeout for given
697 * coverage class. The values are persistent, they are restored after device
701 ath5k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
703 struct ath5k_hw *ah = hw->priv;
705 mutex_lock(&ah->lock);
706 ath5k_hw_set_coverage_class(ah, coverage_class);
707 mutex_unlock(&ah->lock);
712 ath5k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
714 struct ath5k_hw *ah = hw->priv;
716 if (tx_ant == 1 && rx_ant == 1)
717 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A);
718 else if (tx_ant == 2 && rx_ant == 2)
719 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B);
720 else if ((tx_ant & 3) == 3 && (rx_ant & 3) == 3)
721 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT);
729 ath5k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
731 struct ath5k_hw *ah = hw->priv;
733 switch (ah->ah_ant_mode) {
734 case AR5K_ANTMODE_FIXED_A:
735 *tx_ant = 1; *rx_ant = 1; break;
736 case AR5K_ANTMODE_FIXED_B:
737 *tx_ant = 2; *rx_ant = 2; break;
738 case AR5K_ANTMODE_DEFAULT:
739 *tx_ant = 3; *rx_ant = 3; break;
745 static void ath5k_get_ringparam(struct ieee80211_hw *hw,
746 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
748 struct ath5k_hw *ah = hw->priv;
750 *tx = ah->txqs[AR5K_TX_QUEUE_ID_DATA_MIN].txq_max;
752 *tx_max = ATH5K_TXQ_LEN_MAX;
753 *rx = *rx_max = ATH_RXBUF;
757 static int ath5k_set_ringparam(struct ieee80211_hw *hw, u32 tx, u32 rx)
759 struct ath5k_hw *ah = hw->priv;
762 /* only support setting tx ring size for now */
766 /* restrict tx ring size min/max */
767 if (!tx || tx > ATH5K_TXQ_LEN_MAX)
770 for (qnum = 0; qnum < ARRAY_SIZE(ah->txqs); qnum++) {
771 if (!ah->txqs[qnum].setup)
773 if (ah->txqs[qnum].qnum < AR5K_TX_QUEUE_ID_DATA_MIN ||
774 ah->txqs[qnum].qnum > AR5K_TX_QUEUE_ID_DATA_MAX)
777 ah->txqs[qnum].txq_max = tx;
778 if (ah->txqs[qnum].txq_len >= ah->txqs[qnum].txq_max)
779 ieee80211_stop_queue(hw, ah->txqs[qnum].qnum);
786 const struct ieee80211_ops ath5k_hw_ops = {
788 .start = ath5k_start,
790 .add_interface = ath5k_add_interface,
791 /* .change_interface = not implemented */
792 .remove_interface = ath5k_remove_interface,
793 .config = ath5k_config,
794 .bss_info_changed = ath5k_bss_info_changed,
795 .prepare_multicast = ath5k_prepare_multicast,
796 .configure_filter = ath5k_configure_filter,
797 /* .set_tim = not implemented */
798 .set_key = ath5k_set_key,
799 /* .update_tkip_key = not implemented */
800 /* .hw_scan = not implemented */
801 .sw_scan_start = ath5k_sw_scan_start,
802 .sw_scan_complete = ath5k_sw_scan_complete,
803 .get_stats = ath5k_get_stats,
804 /* .get_tkip_seq = not implemented */
805 /* .set_frag_threshold = not implemented */
806 /* .set_rts_threshold = not implemented */
807 /* .sta_add = not implemented */
808 /* .sta_remove = not implemented */
809 /* .sta_notify = not implemented */
810 .conf_tx = ath5k_conf_tx,
811 .get_tsf = ath5k_get_tsf,
812 .set_tsf = ath5k_set_tsf,
813 .reset_tsf = ath5k_reset_tsf,
814 /* .tx_last_beacon = not implemented */
815 /* .ampdu_action = not needed */
816 .get_survey = ath5k_get_survey,
817 .set_coverage_class = ath5k_set_coverage_class,
818 /* .rfkill_poll = not implemented */
819 /* .flush = not implemented */
820 /* .channel_switch = not implemented */
821 /* .napi_poll = not implemented */
822 .set_antenna = ath5k_set_antenna,
823 .get_antenna = ath5k_get_antenna,
824 .set_ringparam = ath5k_set_ringparam,
825 .get_ringparam = ath5k_get_ringparam,