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 sk_buff *skb)
60 struct ath5k_hw *ah = hw->priv;
61 u16 qnum = skb_get_queue_mapping(skb);
63 if (WARN_ON(qnum >= ah->ah_capabilities.cap_queues.q_tx_num)) {
64 dev_kfree_skb_any(skb);
68 ath5k_tx_queue(hw, skb, &ah->txqs[qnum]);
73 ath5k_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
75 struct ath5k_hw *ah = hw->priv;
77 struct ath5k_vif *avf = (void *)vif->drv_priv;
79 mutex_lock(&ah->lock);
81 if ((vif->type == NL80211_IFTYPE_AP ||
82 vif->type == NL80211_IFTYPE_ADHOC)
83 && (ah->num_ap_vifs + ah->num_adhoc_vifs) >= ATH_BCBUF) {
88 /* Don't allow other interfaces if one ad-hoc is configured.
89 * TODO: Fix the problems with ad-hoc and multiple other interfaces.
90 * We would need to operate the HW in ad-hoc mode to allow TSF updates
91 * for the IBSS, but this breaks with additional AP or STA interfaces
93 if (ah->num_adhoc_vifs ||
94 (ah->nvifs && vif->type == NL80211_IFTYPE_ADHOC)) {
95 ATH5K_ERR(ah, "Only one single ad-hoc interface is allowed.\n");
101 case NL80211_IFTYPE_AP:
102 case NL80211_IFTYPE_STATION:
103 case NL80211_IFTYPE_ADHOC:
104 case NL80211_IFTYPE_MESH_POINT:
105 avf->opmode = vif->type;
113 ATH5K_DBG(ah, ATH5K_DEBUG_MODE, "add interface mode %d\n", avf->opmode);
115 /* Assign the vap/adhoc to a beacon xmit slot. */
116 if ((avf->opmode == NL80211_IFTYPE_AP) ||
117 (avf->opmode == NL80211_IFTYPE_ADHOC) ||
118 (avf->opmode == NL80211_IFTYPE_MESH_POINT)) {
121 WARN_ON(list_empty(&ah->bcbuf));
122 avf->bbuf = list_first_entry(&ah->bcbuf, struct ath5k_buf,
124 list_del(&avf->bbuf->list);
127 for (slot = 0; slot < ATH_BCBUF; slot++) {
128 if (!ah->bslot[slot]) {
133 BUG_ON(ah->bslot[avf->bslot] != NULL);
134 ah->bslot[avf->bslot] = vif;
135 if (avf->opmode == NL80211_IFTYPE_AP)
137 else if (avf->opmode == NL80211_IFTYPE_ADHOC)
138 ah->num_adhoc_vifs++;
139 else if (avf->opmode == NL80211_IFTYPE_MESH_POINT)
143 /* Any MAC address is fine, all others are included through the
146 ath5k_hw_set_lladdr(ah, vif->addr);
148 ath5k_update_bssid_mask_and_opmode(ah, vif);
151 mutex_unlock(&ah->lock);
157 ath5k_remove_interface(struct ieee80211_hw *hw,
158 struct ieee80211_vif *vif)
160 struct ath5k_hw *ah = hw->priv;
161 struct ath5k_vif *avf = (void *)vif->drv_priv;
164 mutex_lock(&ah->lock);
168 ath5k_txbuf_free_skb(ah, avf->bbuf);
169 list_add_tail(&avf->bbuf->list, &ah->bcbuf);
170 for (i = 0; i < ATH_BCBUF; i++) {
171 if (ah->bslot[i] == vif) {
178 if (avf->opmode == NL80211_IFTYPE_AP)
180 else if (avf->opmode == NL80211_IFTYPE_ADHOC)
181 ah->num_adhoc_vifs--;
182 else if (avf->opmode == NL80211_IFTYPE_MESH_POINT)
185 ath5k_update_bssid_mask_and_opmode(ah, NULL);
186 mutex_unlock(&ah->lock);
191 * TODO: Phy disable/diversity etc
194 ath5k_config(struct ieee80211_hw *hw, u32 changed)
196 struct ath5k_hw *ah = hw->priv;
197 struct ieee80211_conf *conf = &hw->conf;
201 mutex_lock(&ah->lock);
203 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
204 ret = ath5k_chan_set(ah, conf->channel);
209 if ((changed & IEEE80211_CONF_CHANGE_POWER) &&
210 (ah->power_level != conf->power_level)) {
211 ah->power_level = conf->power_level;
214 ath5k_hw_set_txpower_limit(ah, (conf->power_level * 2));
217 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
218 ah->ah_retry_long = conf->long_frame_max_tx_count;
219 ah->ah_retry_short = conf->short_frame_max_tx_count;
221 for (i = 0; i < ah->ah_capabilities.cap_queues.q_tx_num; i++)
222 ath5k_hw_set_tx_retry_limits(ah, i);
226 * 1) Move this on config_interface and handle each case
227 * separately eg. when we have only one STA vif, use
228 * AR5K_ANTMODE_SINGLE_AP
230 * 2) Allow the user to change antenna mode eg. when only
231 * one antenna is present
233 * 3) Allow the user to set default/tx antenna when possible
235 * 4) Default mode should handle 90% of the cases, together
236 * with fixed a/b and single AP modes we should be able to
237 * handle 99%. Sectored modes are extreme cases and i still
238 * haven't found a usage for them. If we decide to support them,
239 * then we must allow the user to set how many tx antennas we
242 ath5k_hw_set_antenna_mode(ah, ah->ah_ant_mode);
245 mutex_unlock(&ah->lock);
251 ath5k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
252 struct ieee80211_bss_conf *bss_conf, u32 changes)
254 struct ath5k_vif *avf = (void *)vif->drv_priv;
255 struct ath5k_hw *ah = hw->priv;
256 struct ath_common *common = ath5k_hw_common(ah);
259 mutex_lock(&ah->lock);
261 if (changes & BSS_CHANGED_BSSID) {
262 /* Cache for later use during resets */
263 memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
265 ath5k_hw_set_bssid(ah);
269 if (changes & BSS_CHANGED_BEACON_INT)
270 ah->bintval = bss_conf->beacon_int;
272 if (changes & BSS_CHANGED_ERP_SLOT) {
275 ah->ah_short_slot = bss_conf->use_short_slot;
276 slot_time = ath5k_hw_get_default_slottime(ah) +
277 3 * ah->ah_coverage_class;
278 ath5k_hw_set_ifs_intervals(ah, slot_time);
281 if (changes & BSS_CHANGED_ASSOC) {
282 avf->assoc = bss_conf->assoc;
284 ah->assoc = bss_conf->assoc;
286 ah->assoc = ath5k_any_vif_assoc(ah);
288 if (ah->opmode == NL80211_IFTYPE_STATION)
289 ath5k_set_beacon_filter(hw, ah->assoc);
290 ath5k_hw_set_ledstate(ah, ah->assoc ?
291 AR5K_LED_ASSOC : AR5K_LED_INIT);
292 if (bss_conf->assoc) {
293 ATH5K_DBG(ah, ATH5K_DEBUG_ANY,
294 "Bss Info ASSOC %d, bssid: %pM\n",
295 bss_conf->aid, common->curbssid);
296 common->curaid = bss_conf->aid;
297 ath5k_hw_set_bssid(ah);
298 /* Once ANI is available you would start it here */
302 if (changes & BSS_CHANGED_BEACON) {
303 spin_lock_irqsave(&ah->block, flags);
304 ath5k_beacon_update(hw, vif);
305 spin_unlock_irqrestore(&ah->block, flags);
308 if (changes & BSS_CHANGED_BEACON_ENABLED)
309 ah->enable_beacon = bss_conf->enable_beacon;
311 if (changes & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_ENABLED |
312 BSS_CHANGED_BEACON_INT))
313 ath5k_beacon_config(ah);
315 mutex_unlock(&ah->lock);
320 ath5k_prepare_multicast(struct ieee80211_hw *hw,
321 struct netdev_hw_addr_list *mc_list)
325 struct netdev_hw_addr *ha;
330 netdev_hw_addr_list_for_each(ha, mc_list) {
331 /* calculate XOR of eight 6-bit values */
332 val = get_unaligned_le32(ha->addr + 0);
333 pos = (val >> 18) ^ (val >> 12) ^ (val >> 6) ^ val;
334 val = get_unaligned_le32(ha->addr + 3);
335 pos ^= (val >> 18) ^ (val >> 12) ^ (val >> 6) ^ val;
337 mfilt[pos / 32] |= (1 << (pos % 32));
338 /* XXX: we might be able to just do this instead,
339 * but not sure, needs testing, if we do use this we'd
340 * need to inform below not to reset the mcast */
341 /* ath5k_hw_set_mcast_filterindex(ah,
345 return ((u64)(mfilt[1]) << 32) | mfilt[0];
350 * o always accept unicast, broadcast, and multicast traffic
351 * o multicast traffic for all BSSIDs will be enabled if mac80211
353 * o maintain current state of phy ofdm or phy cck error reception.
354 * If the hardware detects any of these type of errors then
355 * ath5k_hw_get_rx_filter() will pass to us the respective
356 * hardware filters to be able to receive these type of frames.
357 * o probe request frames are accepted only when operating in
358 * hostap, adhoc, or monitor modes
359 * o enable promiscuous mode according to the interface state
361 * - when operating in adhoc mode so the 802.11 layer creates
362 * node table entries for peers,
363 * - when operating in station mode for collecting rssi data when
364 * the station is otherwise quiet, or
368 ath5k_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
369 unsigned int *new_flags, u64 multicast)
371 #define SUPPORTED_FIF_FLAGS \
372 (FIF_PROMISC_IN_BSS | FIF_ALLMULTI | FIF_FCSFAIL | \
373 FIF_PLCPFAIL | FIF_CONTROL | FIF_OTHER_BSS | \
374 FIF_BCN_PRBRESP_PROMISC)
376 struct ath5k_hw *ah = hw->priv;
378 struct ath5k_vif_iter_data iter_data; /* to count STA interfaces */
380 mutex_lock(&ah->lock);
382 mfilt[0] = multicast;
383 mfilt[1] = multicast >> 32;
385 /* Only deal with supported flags */
386 changed_flags &= SUPPORTED_FIF_FLAGS;
387 *new_flags &= SUPPORTED_FIF_FLAGS;
389 /* If HW detects any phy or radar errors, leave those filters on.
390 * Also, always enable Unicast, Broadcasts and Multicast
391 * XXX: move unicast, bssid broadcasts and multicast to mac80211 */
392 rfilt = (ath5k_hw_get_rx_filter(ah) & (AR5K_RX_FILTER_PHYERR)) |
393 (AR5K_RX_FILTER_UCAST | AR5K_RX_FILTER_BCAST |
394 AR5K_RX_FILTER_MCAST);
396 if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) {
397 if (*new_flags & FIF_PROMISC_IN_BSS)
398 __set_bit(ATH_STAT_PROMISC, ah->status);
400 __clear_bit(ATH_STAT_PROMISC, ah->status);
403 if (test_bit(ATH_STAT_PROMISC, ah->status))
404 rfilt |= AR5K_RX_FILTER_PROM;
406 /* Note, AR5K_RX_FILTER_MCAST is already enabled */
407 if (*new_flags & FIF_ALLMULTI) {
412 /* This is the best we can do */
413 if (*new_flags & (FIF_FCSFAIL | FIF_PLCPFAIL))
414 rfilt |= AR5K_RX_FILTER_PHYERR;
416 /* FIF_BCN_PRBRESP_PROMISC really means to enable beacons
417 * and probes for any BSSID */
418 if ((*new_flags & FIF_BCN_PRBRESP_PROMISC) || (ah->nvifs > 1))
419 rfilt |= AR5K_RX_FILTER_BEACON;
421 /* FIF_CONTROL doc says that if FIF_PROMISC_IN_BSS is not
422 * set we should only pass on control frames for this
423 * station. This needs testing. I believe right now this
424 * enables *all* control frames, which is OK.. but
425 * but we should see if we can improve on granularity */
426 if (*new_flags & FIF_CONTROL)
427 rfilt |= AR5K_RX_FILTER_CONTROL;
429 /* Additional settings per mode -- this is per ath5k */
431 /* XXX move these to mac80211, and add a beacon IFF flag to mac80211 */
433 switch (ah->opmode) {
434 case NL80211_IFTYPE_MESH_POINT:
435 rfilt |= AR5K_RX_FILTER_CONTROL |
436 AR5K_RX_FILTER_BEACON |
437 AR5K_RX_FILTER_PROBEREQ |
440 case NL80211_IFTYPE_AP:
441 case NL80211_IFTYPE_ADHOC:
442 rfilt |= AR5K_RX_FILTER_PROBEREQ |
443 AR5K_RX_FILTER_BEACON;
445 case NL80211_IFTYPE_STATION:
447 rfilt |= AR5K_RX_FILTER_BEACON;
452 iter_data.hw_macaddr = NULL;
453 iter_data.n_stas = 0;
454 iter_data.need_set_hw_addr = false;
455 ieee80211_iterate_active_interfaces_atomic(ah->hw, ath5k_vif_iter,
458 /* Set up RX Filter */
459 if (iter_data.n_stas > 1) {
460 /* If you have multiple STA interfaces connected to
461 * different APs, ARPs are not received (most of the time?)
462 * Enabling PROMISC appears to fix that problem.
464 rfilt |= AR5K_RX_FILTER_PROM;
468 ath5k_hw_set_rx_filter(ah, rfilt);
470 /* Set multicast bits */
471 ath5k_hw_set_mcast_filter(ah, mfilt[0], mfilt[1]);
472 /* Set the cached hw filter flags, this will later actually
474 ah->filter_flags = rfilt;
476 mutex_unlock(&ah->lock);
481 ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
482 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
483 struct ieee80211_key_conf *key)
485 struct ath5k_hw *ah = hw->priv;
486 struct ath_common *common = ath5k_hw_common(ah);
489 if (ath5k_modparam_nohwcrypt)
492 if (vif->type == NL80211_IFTYPE_ADHOC &&
493 (key->cipher == WLAN_CIPHER_SUITE_TKIP ||
494 key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
495 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
496 /* don't program group keys when using IBSS_RSN */
500 switch (key->cipher) {
501 case WLAN_CIPHER_SUITE_WEP40:
502 case WLAN_CIPHER_SUITE_WEP104:
503 case WLAN_CIPHER_SUITE_TKIP:
505 case WLAN_CIPHER_SUITE_CCMP:
506 if (common->crypt_caps & ATH_CRYPT_CAP_CIPHER_AESCCM)
514 mutex_lock(&ah->lock);
518 ret = ath_key_config(common, vif, sta, key);
520 key->hw_key_idx = ret;
521 /* push IV and Michael MIC generation to stack */
522 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
523 if (key->cipher == WLAN_CIPHER_SUITE_TKIP)
524 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
525 if (key->cipher == WLAN_CIPHER_SUITE_CCMP)
526 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT;
531 ath_key_delete(common, key);
538 mutex_unlock(&ah->lock);
544 ath5k_sw_scan_start(struct ieee80211_hw *hw)
546 struct ath5k_hw *ah = hw->priv;
548 ath5k_hw_set_ledstate(ah, AR5K_LED_SCAN);
553 ath5k_sw_scan_complete(struct ieee80211_hw *hw)
555 struct ath5k_hw *ah = hw->priv;
556 ath5k_hw_set_ledstate(ah, ah->assoc ?
557 AR5K_LED_ASSOC : AR5K_LED_INIT);
562 ath5k_get_stats(struct ieee80211_hw *hw,
563 struct ieee80211_low_level_stats *stats)
565 struct ath5k_hw *ah = hw->priv;
568 ath5k_hw_update_mib_counters(ah);
570 stats->dot11ACKFailureCount = ah->stats.ack_fail;
571 stats->dot11RTSFailureCount = ah->stats.rts_fail;
572 stats->dot11RTSSuccessCount = ah->stats.rts_ok;
573 stats->dot11FCSErrorCount = ah->stats.fcs_error;
580 ath5k_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
581 const struct ieee80211_tx_queue_params *params)
583 struct ath5k_hw *ah = hw->priv;
584 struct ath5k_txq_info qi;
587 if (queue >= ah->ah_capabilities.cap_queues.q_tx_num)
590 mutex_lock(&ah->lock);
592 ath5k_hw_get_tx_queueprops(ah, queue, &qi);
594 qi.tqi_aifs = params->aifs;
595 qi.tqi_cw_min = params->cw_min;
596 qi.tqi_cw_max = params->cw_max;
597 qi.tqi_burst_time = params->txop * 32;
599 ATH5K_DBG(ah, ATH5K_DEBUG_ANY,
600 "Configure tx [queue %d], "
601 "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
602 queue, params->aifs, params->cw_min,
603 params->cw_max, params->txop);
605 if (ath5k_hw_set_tx_queueprops(ah, queue, &qi)) {
607 "Unable to update hardware queue %u!\n", queue);
610 ath5k_hw_reset_tx_queue(ah, queue);
612 mutex_unlock(&ah->lock);
619 ath5k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
621 struct ath5k_hw *ah = hw->priv;
623 return ath5k_hw_get_tsf64(ah);
628 ath5k_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u64 tsf)
630 struct ath5k_hw *ah = hw->priv;
632 ath5k_hw_set_tsf64(ah, tsf);
637 ath5k_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
639 struct ath5k_hw *ah = hw->priv;
642 * in IBSS mode we need to update the beacon timers too.
643 * this will also reset the TSF if we call it with 0
645 if (ah->opmode == NL80211_IFTYPE_ADHOC)
646 ath5k_beacon_update_timers(ah, 0);
648 ath5k_hw_reset_tsf(ah);
653 ath5k_get_survey(struct ieee80211_hw *hw, int idx, struct survey_info *survey)
655 struct ath5k_hw *ah = hw->priv;
656 struct ieee80211_conf *conf = &hw->conf;
657 struct ath_common *common = ath5k_hw_common(ah);
658 struct ath_cycle_counters *cc = &common->cc_survey;
659 unsigned int div = common->clockrate * 1000;
664 spin_lock_bh(&common->cc_lock);
665 ath_hw_cycle_counters_update(common);
666 if (cc->cycles > 0) {
667 ah->survey.channel_time += cc->cycles / div;
668 ah->survey.channel_time_busy += cc->rx_busy / div;
669 ah->survey.channel_time_rx += cc->rx_frame / div;
670 ah->survey.channel_time_tx += cc->tx_frame / div;
672 memset(cc, 0, sizeof(*cc));
673 spin_unlock_bh(&common->cc_lock);
675 memcpy(survey, &ah->survey, sizeof(*survey));
677 survey->channel = conf->channel;
678 survey->noise = ah->ah_noise_floor;
679 survey->filled = SURVEY_INFO_NOISE_DBM |
680 SURVEY_INFO_CHANNEL_TIME |
681 SURVEY_INFO_CHANNEL_TIME_BUSY |
682 SURVEY_INFO_CHANNEL_TIME_RX |
683 SURVEY_INFO_CHANNEL_TIME_TX;
690 * ath5k_set_coverage_class - Set IEEE 802.11 coverage class
692 * @hw: struct ieee80211_hw pointer
693 * @coverage_class: IEEE 802.11 coverage class number
695 * Mac80211 callback. Sets slot time, ACK timeout and CTS timeout for given
696 * coverage class. The values are persistent, they are restored after device
700 ath5k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
702 struct ath5k_hw *ah = hw->priv;
704 mutex_lock(&ah->lock);
705 ath5k_hw_set_coverage_class(ah, coverage_class);
706 mutex_unlock(&ah->lock);
711 ath5k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
713 struct ath5k_hw *ah = hw->priv;
715 if (tx_ant == 1 && rx_ant == 1)
716 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A);
717 else if (tx_ant == 2 && rx_ant == 2)
718 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B);
719 else if ((tx_ant & 3) == 3 && (rx_ant & 3) == 3)
720 ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT);
728 ath5k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
730 struct ath5k_hw *ah = hw->priv;
732 switch (ah->ah_ant_mode) {
733 case AR5K_ANTMODE_FIXED_A:
734 *tx_ant = 1; *rx_ant = 1; break;
735 case AR5K_ANTMODE_FIXED_B:
736 *tx_ant = 2; *rx_ant = 2; break;
737 case AR5K_ANTMODE_DEFAULT:
738 *tx_ant = 3; *rx_ant = 3; break;
744 static void ath5k_get_ringparam(struct ieee80211_hw *hw,
745 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
747 struct ath5k_hw *ah = hw->priv;
749 *tx = ah->txqs[AR5K_TX_QUEUE_ID_DATA_MIN].txq_max;
751 *tx_max = ATH5K_TXQ_LEN_MAX;
752 *rx = *rx_max = ATH_RXBUF;
756 static int ath5k_set_ringparam(struct ieee80211_hw *hw, u32 tx, u32 rx)
758 struct ath5k_hw *ah = hw->priv;
761 /* only support setting tx ring size for now */
765 /* restrict tx ring size min/max */
766 if (!tx || tx > ATH5K_TXQ_LEN_MAX)
769 for (qnum = 0; qnum < ARRAY_SIZE(ah->txqs); qnum++) {
770 if (!ah->txqs[qnum].setup)
772 if (ah->txqs[qnum].qnum < AR5K_TX_QUEUE_ID_DATA_MIN ||
773 ah->txqs[qnum].qnum > AR5K_TX_QUEUE_ID_DATA_MAX)
776 ah->txqs[qnum].txq_max = tx;
777 if (ah->txqs[qnum].txq_len >= ah->txqs[qnum].txq_max)
778 ieee80211_stop_queue(hw, ah->txqs[qnum].qnum);
785 const struct ieee80211_ops ath5k_hw_ops = {
787 .start = ath5k_start,
789 .add_interface = ath5k_add_interface,
790 /* .change_interface = not implemented */
791 .remove_interface = ath5k_remove_interface,
792 .config = ath5k_config,
793 .bss_info_changed = ath5k_bss_info_changed,
794 .prepare_multicast = ath5k_prepare_multicast,
795 .configure_filter = ath5k_configure_filter,
796 /* .set_tim = not implemented */
797 .set_key = ath5k_set_key,
798 /* .update_tkip_key = not implemented */
799 /* .hw_scan = not implemented */
800 .sw_scan_start = ath5k_sw_scan_start,
801 .sw_scan_complete = ath5k_sw_scan_complete,
802 .get_stats = ath5k_get_stats,
803 /* .get_tkip_seq = not implemented */
804 /* .set_frag_threshold = not implemented */
805 /* .set_rts_threshold = not implemented */
806 /* .sta_add = not implemented */
807 /* .sta_remove = not implemented */
808 /* .sta_notify = not implemented */
809 .conf_tx = ath5k_conf_tx,
810 .get_tsf = ath5k_get_tsf,
811 .set_tsf = ath5k_set_tsf,
812 .reset_tsf = ath5k_reset_tsf,
813 /* .tx_last_beacon = not implemented */
814 /* .ampdu_action = not needed */
815 .get_survey = ath5k_get_survey,
816 .set_coverage_class = ath5k_set_coverage_class,
817 /* .rfkill_poll = not implemented */
818 /* .flush = not implemented */
819 /* .channel_switch = not implemented */
820 /* .napi_poll = not implemented */
821 .set_antenna = ath5k_set_antenna,
822 .get_antenna = ath5k_get_antenna,
823 .set_ringparam = ath5k_set_ringparam,
824 .get_ringparam = ath5k_get_ringparam,