2 * Copyright (c) 2004-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
26 struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr)
28 struct ath6kl *ar = vif->ar;
29 struct ath6kl_sta *conn = NULL;
32 max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0;
34 for (i = 0; i < max_conn; i++) {
35 if (memcmp(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) {
36 conn = &ar->sta_list[i];
44 struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid)
46 struct ath6kl_sta *conn = NULL;
49 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) {
50 if (ar->sta_list[ctr].aid == aid) {
51 conn = &ar->sta_list[ctr];
58 static void ath6kl_add_new_sta(struct ath6kl_vif *vif, u8 *mac, u16 aid,
59 u8 *wpaie, size_t ielen, u8 keymgmt,
60 u8 ucipher, u8 auth, u8 apsd_info)
62 struct ath6kl *ar = vif->ar;
63 struct ath6kl_sta *sta;
68 sta = &ar->sta_list[free_slot];
69 memcpy(sta->mac, mac, ETH_ALEN);
70 if (ielen <= ATH6KL_MAX_IE)
71 memcpy(sta->wpa_ie, wpaie, ielen);
73 sta->keymgmt = keymgmt;
74 sta->ucipher = ucipher;
76 sta->apsd_info = apsd_info;
78 ar->sta_list_index = ar->sta_list_index | (1 << free_slot);
79 ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid);
80 aggr_conn_init(vif, vif->aggr_cntxt, sta->aggr_conn);
83 static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i)
85 struct ath6kl_sta *sta = &ar->sta_list[i];
86 struct ath6kl_mgmt_buff *entry, *tmp;
88 /* empty the queued pkts in the PS queue if any */
89 spin_lock_bh(&sta->psq_lock);
90 skb_queue_purge(&sta->psq);
91 skb_queue_purge(&sta->apsdq);
93 if (sta->mgmt_psq_len != 0) {
94 list_for_each_entry_safe(entry, tmp, &sta->mgmt_psq, list) {
97 INIT_LIST_HEAD(&sta->mgmt_psq);
98 sta->mgmt_psq_len = 0;
101 spin_unlock_bh(&sta->psq_lock);
103 memset(&ar->ap_stats.sta[sta->aid - 1], 0,
104 sizeof(struct wmi_per_sta_stat));
105 memset(sta->mac, 0, ETH_ALEN);
106 memset(sta->wpa_ie, 0, ATH6KL_MAX_IE);
110 ar->sta_list_index = ar->sta_list_index & ~(1 << i);
111 aggr_reset_state(sta->aggr_conn);
114 static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason)
118 if (is_zero_ether_addr(mac))
121 if (is_broadcast_ether_addr(mac)) {
122 ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n");
124 for (i = 0; i < AP_MAX_NUM_STA; i++) {
125 if (!is_zero_ether_addr(ar->sta_list[i].mac)) {
126 ath6kl_sta_cleanup(ar, i);
131 for (i = 0; i < AP_MAX_NUM_STA; i++) {
132 if (memcmp(ar->sta_list[i].mac, mac, ETH_ALEN) == 0) {
133 ath6kl_dbg(ATH6KL_DBG_TRC,
134 "deleting station %pM aid=%d reason=%d\n",
135 mac, ar->sta_list[i].aid, reason);
136 ath6kl_sta_cleanup(ar, i);
146 enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac)
148 struct ath6kl *ar = devt;
149 return ar->ac2ep_map[ac];
152 struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar)
154 struct ath6kl_cookie *cookie;
156 cookie = ar->cookie_list;
157 if (cookie != NULL) {
158 ar->cookie_list = cookie->arc_list_next;
165 void ath6kl_cookie_init(struct ath6kl *ar)
169 ar->cookie_list = NULL;
170 ar->cookie_count = 0;
172 memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem));
174 for (i = 0; i < MAX_COOKIE_NUM; i++)
175 ath6kl_free_cookie(ar, &ar->cookie_mem[i]);
178 void ath6kl_cookie_cleanup(struct ath6kl *ar)
180 ar->cookie_list = NULL;
181 ar->cookie_count = 0;
184 void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie)
191 cookie->arc_list_next = ar->cookie_list;
192 ar->cookie_list = cookie;
197 * Read from the hardware through its diagnostic window. No cooperation
198 * from the firmware is required for this.
200 int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value)
204 ret = ath6kl_hif_diag_read32(ar, address, value);
206 ath6kl_warn("failed to read32 through diagnose window: %d\n",
215 * Write to the ATH6KL through its diagnostic window. No cooperation from
216 * the Target is required for this.
218 int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value)
222 ret = ath6kl_hif_diag_write32(ar, address, value);
225 ath6kl_err("failed to write 0x%x during diagnose window to 0x%d\n",
233 int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length)
235 u32 count, *buf = data;
238 if (WARN_ON(length % 4))
241 for (count = 0; count < length / 4; count++, address += 4) {
242 ret = ath6kl_diag_read32(ar, address, &buf[count]);
250 int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length)
256 if (WARN_ON(length % 4))
259 for (count = 0; count < length / 4; count++, address += 4) {
260 ret = ath6kl_diag_write32(ar, address, buf[count]);
268 int ath6kl_read_fwlogs(struct ath6kl *ar)
270 struct ath6kl_dbglog_hdr debug_hdr;
271 struct ath6kl_dbglog_buf debug_buf;
272 u32 address, length, dropped, firstbuf, debug_hdr_addr;
276 buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL);
280 address = TARG_VTOP(ar->target_type,
281 ath6kl_get_hi_item_addr(ar,
282 HI_ITEM(hi_dbglog_hdr)));
284 ret = ath6kl_diag_read32(ar, address, &debug_hdr_addr);
288 /* Get the contents of the ring buffer */
289 if (debug_hdr_addr == 0) {
290 ath6kl_warn("Invalid address for debug_hdr_addr\n");
295 address = TARG_VTOP(ar->target_type, debug_hdr_addr);
296 ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr));
298 address = TARG_VTOP(ar->target_type,
299 le32_to_cpu(debug_hdr.dbuf_addr));
301 dropped = le32_to_cpu(debug_hdr.dropped);
302 ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf));
307 address = TARG_VTOP(ar->target_type,
308 le32_to_cpu(debug_buf.buffer_addr));
309 length = le32_to_cpu(debug_buf.length);
311 if (length != 0 && (le32_to_cpu(debug_buf.length) <=
312 le32_to_cpu(debug_buf.bufsize))) {
313 length = ALIGN(length, 4);
315 ret = ath6kl_diag_read(ar, address,
320 ath6kl_debug_fwlog_event(ar, buf, length);
323 address = TARG_VTOP(ar->target_type,
324 le32_to_cpu(debug_buf.next));
325 ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf));
331 if (WARN_ON(loop == 0)) {
335 } while (address != firstbuf);
343 /* FIXME: move to a better place, target.h? */
344 #define AR6003_RESET_CONTROL_ADDRESS 0x00004000
345 #define AR6004_RESET_CONTROL_ADDRESS 0x00004000
347 void ath6kl_reset_device(struct ath6kl *ar, u32 target_type,
348 bool wait_fot_compltn, bool cold_reset)
354 if (target_type != TARGET_TYPE_AR6003 &&
355 target_type != TARGET_TYPE_AR6004)
358 data = cold_reset ? cpu_to_le32(RESET_CONTROL_COLD_RST) :
359 cpu_to_le32(RESET_CONTROL_MBOX_RST);
361 switch (target_type) {
362 case TARGET_TYPE_AR6003:
363 address = AR6003_RESET_CONTROL_ADDRESS;
365 case TARGET_TYPE_AR6004:
366 address = AR6004_RESET_CONTROL_ADDRESS;
370 status = ath6kl_diag_write32(ar, address, data);
373 ath6kl_err("failed to reset target\n");
376 static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif)
381 for (index = 0; index <= WMI_MAX_KEY_INDEX; index++) {
382 if (vif->wep_key_list[index].key_len) {
383 keyusage = GROUP_USAGE;
384 if (index == vif->def_txkey_index)
385 keyusage |= TX_USAGE;
387 ath6kl_wmi_addkey_cmd(vif->ar->wmi, vif->fw_vif_idx,
391 vif->wep_key_list[index].key_len,
393 vif->wep_key_list[index].key,
394 KEY_OP_INIT_VAL, NULL,
400 void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel)
402 struct ath6kl *ar = vif->ar;
403 struct ath6kl_req_key *ik;
405 u8 key_rsc[ATH6KL_KEY_SEQ_LEN];
407 ik = &ar->ap_mode_bkey;
409 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel);
411 switch (vif->auth_mode) {
413 if (vif->prwise_crypto == WEP_CRYPT)
414 ath6kl_install_static_wep_keys(vif);
415 if (!ik->valid || ik->key_type != WAPI_CRYPT)
417 /* for WAPI, we need to set the delayed group key, continue: */
420 case (WPA_PSK_AUTH | WPA2_PSK_AUTH):
424 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
425 "Delayed addkey for the initial group key for AP mode\n");
426 memset(key_rsc, 0, sizeof(key_rsc));
427 res = ath6kl_wmi_addkey_cmd(
428 ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type,
429 GROUP_USAGE, ik->key_len, key_rsc, ATH6KL_KEY_SEQ_LEN,
431 KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG);
433 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
434 "Delayed addkey failed: %d\n", res);
439 if (ar->want_ch_switch & (1 << vif->fw_vif_idx)) {
440 ar->want_ch_switch &= ~(1 << vif->fw_vif_idx);
441 /* we actually don't know the phymode, default to HT20 */
442 ath6kl_cfg80211_ch_switch_notify(vif, channel,
446 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0);
447 set_bit(CONNECTED, &vif->flags);
448 netif_carrier_on(vif->ndev);
451 void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr,
452 u8 keymgmt, u8 ucipher, u8 auth,
453 u8 assoc_req_len, u8 *assoc_info, u8 apsd_info)
455 u8 *ies = NULL, *wpa_ie = NULL, *pos;
457 struct station_info sinfo;
459 ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid);
461 if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) {
462 struct ieee80211_mgmt *mgmt =
463 (struct ieee80211_mgmt *) assoc_info;
464 if (ieee80211_is_assoc_req(mgmt->frame_control) &&
465 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) +
466 sizeof(mgmt->u.assoc_req)) {
467 ies = mgmt->u.assoc_req.variable;
468 ies_len = assoc_info + assoc_req_len - ies;
469 } else if (ieee80211_is_reassoc_req(mgmt->frame_control) &&
470 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr)
471 + sizeof(mgmt->u.reassoc_req)) {
472 ies = mgmt->u.reassoc_req.variable;
473 ies_len = assoc_info + assoc_req_len - ies;
478 while (pos && pos + 1 < ies + ies_len) {
479 if (pos + 2 + pos[1] > ies + ies_len)
481 if (pos[0] == WLAN_EID_RSN)
482 wpa_ie = pos; /* RSN IE */
483 else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
485 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) {
487 wpa_ie = pos; /* WPA IE */
488 else if (pos[5] == 0x04) {
489 wpa_ie = pos; /* WPS IE */
490 break; /* overrides WPA/RSN IE */
492 } else if (pos[0] == 0x44 && wpa_ie == NULL) {
494 * Note: WAPI Parameter Set IE re-uses Element ID that
495 * was officially allocated for BSS AC Access Delay. As
496 * such, we need to be a bit more careful on when
497 * parsing the frame. However, BSS AC Access Delay
498 * element is not supposed to be included in
499 * (Re)Association Request frames, so this should not
502 wpa_ie = pos; /* WAPI IE */
508 ath6kl_add_new_sta(vif, mac_addr, aid, wpa_ie,
509 wpa_ie ? 2 + wpa_ie[1] : 0,
510 keymgmt, ucipher, auth, apsd_info);
512 /* send event to application */
513 memset(&sinfo, 0, sizeof(sinfo));
515 /* TODO: sinfo.generation */
517 sinfo.assoc_req_ies = ies;
518 sinfo.assoc_req_ies_len = ies_len;
519 sinfo.filled |= STATION_INFO_ASSOC_REQ_IES;
521 cfg80211_new_sta(vif->ndev, mac_addr, &sinfo, GFP_KERNEL);
523 netif_wake_queue(vif->ndev);
526 void disconnect_timer_handler(unsigned long ptr)
528 struct net_device *dev = (struct net_device *)ptr;
529 struct ath6kl_vif *vif = netdev_priv(dev);
531 ath6kl_init_profile_info(vif);
532 ath6kl_disconnect(vif);
535 void ath6kl_disconnect(struct ath6kl_vif *vif)
537 if (test_bit(CONNECTED, &vif->flags) ||
538 test_bit(CONNECT_PEND, &vif->flags)) {
539 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
541 * Disconnect command is issued, clear the connect pending
542 * flag. The connected flag will be cleared in
543 * disconnect event notification.
545 clear_bit(CONNECT_PEND, &vif->flags);
549 /* WMI Event handlers */
551 void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver,
552 enum wmi_phy_cap cap)
554 struct ath6kl *ar = devt;
556 memcpy(ar->mac_addr, datap, ETH_ALEN);
558 ath6kl_dbg(ATH6KL_DBG_BOOT,
559 "ready event mac addr %pM sw_ver 0x%x abi_ver 0x%x cap 0x%x\n",
560 ar->mac_addr, sw_ver, abi_ver, cap);
562 ar->version.wlan_ver = sw_ver;
563 ar->version.abi_ver = abi_ver;
566 if (strlen(ar->wiphy->fw_version) == 0) {
567 snprintf(ar->wiphy->fw_version,
568 sizeof(ar->wiphy->fw_version),
570 (ar->version.wlan_ver & 0xf0000000) >> 28,
571 (ar->version.wlan_ver & 0x0f000000) >> 24,
572 (ar->version.wlan_ver & 0x00ff0000) >> 16,
573 (ar->version.wlan_ver & 0x0000ffff));
576 /* indicate to the waiting thread that the ready event was received */
577 set_bit(WMI_READY, &ar->flag);
578 wake_up(&ar->event_wq);
581 void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status)
583 struct ath6kl *ar = vif->ar;
584 bool aborted = false;
586 if (status != WMI_SCAN_STATUS_SUCCESS)
589 ath6kl_cfg80211_scan_complete_event(vif, aborted);
591 if (!ar->usr_bss_filter) {
592 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
593 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
597 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "scan complete: %d\n", status);
600 static int ath6kl_commit_ch_switch(struct ath6kl_vif *vif, u16 channel)
603 struct ath6kl *ar = vif->ar;
605 vif->profile.ch = cpu_to_le16(channel);
607 switch (vif->nw_type) {
609 return ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx,
612 ath6kl_err("won't switch channels nw_type=%d\n", vif->nw_type);
617 static void ath6kl_check_ch_switch(struct ath6kl *ar, u16 channel)
620 struct ath6kl_vif *vif;
623 if (!ar->want_ch_switch)
626 spin_lock_bh(&ar->list_lock);
627 list_for_each_entry(vif, &ar->vif_list, list) {
628 if (ar->want_ch_switch & (1 << vif->fw_vif_idx))
629 res = ath6kl_commit_ch_switch(vif, channel);
632 ath6kl_err("channel switch failed nw_type %d res %d\n",
635 spin_unlock_bh(&ar->list_lock);
638 void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid,
639 u16 listen_int, u16 beacon_int,
640 enum network_type net_type, u8 beacon_ie_len,
641 u8 assoc_req_len, u8 assoc_resp_len,
644 struct ath6kl *ar = vif->ar;
646 ath6kl_cfg80211_connect_event(vif, channel, bssid,
647 listen_int, beacon_int,
648 net_type, beacon_ie_len,
649 assoc_req_len, assoc_resp_len,
652 memcpy(vif->bssid, bssid, sizeof(vif->bssid));
653 vif->bss_ch = channel;
655 if ((vif->nw_type == INFRA_NETWORK)) {
656 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
657 vif->listen_intvl_t, 0);
658 ath6kl_check_ch_switch(ar, channel);
661 netif_wake_queue(vif->ndev);
663 /* Update connect & link status atomically */
664 spin_lock_bh(&vif->if_lock);
665 set_bit(CONNECTED, &vif->flags);
666 clear_bit(CONNECT_PEND, &vif->flags);
667 netif_carrier_on(vif->ndev);
668 spin_unlock_bh(&vif->if_lock);
670 aggr_reset_state(vif->aggr_cntxt->aggr_conn);
671 vif->reconnect_flag = 0;
673 if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) {
674 memset(ar->node_map, 0, sizeof(ar->node_map));
676 ar->next_ep_id = ENDPOINT_2;
679 if (!ar->usr_bss_filter) {
680 set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
681 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
682 CURRENT_BSS_FILTER, 0);
686 void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast)
688 struct ath6kl_sta *sta;
689 struct ath6kl *ar = vif->ar;
693 * For AP case, keyid will have aid of STA which sent pkt with
694 * MIC error. Use this aid to get MAC & send it to hostapd.
696 if (vif->nw_type == AP_NETWORK) {
697 sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2));
701 ath6kl_dbg(ATH6KL_DBG_TRC,
702 "ap tkip mic error received from aid=%d\n", keyid);
704 memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */
705 cfg80211_michael_mic_failure(vif->ndev, sta->mac,
706 NL80211_KEYTYPE_PAIRWISE, keyid,
709 ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast);
713 static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len)
715 struct wmi_target_stats *tgt_stats =
716 (struct wmi_target_stats *) ptr;
717 struct ath6kl *ar = vif->ar;
718 struct target_stats *stats = &vif->target_stats;
719 struct tkip_ccmp_stats *ccmp_stats;
722 if (len < sizeof(*tgt_stats))
725 ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n");
727 stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt);
728 stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte);
729 stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt);
730 stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte);
731 stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt);
732 stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte);
733 stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt);
734 stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte);
735 stats->tx_rts_success_cnt +=
736 le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt);
738 for (ac = 0; ac < WMM_NUM_AC; ac++)
739 stats->tx_pkt_per_ac[ac] +=
740 le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]);
742 stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err);
743 stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt);
744 stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt);
745 stats->tx_mult_retry_cnt +=
746 le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt);
747 stats->tx_rts_fail_cnt +=
748 le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt);
749 stats->tx_ucast_rate =
750 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate));
752 stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt);
753 stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte);
754 stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt);
755 stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte);
756 stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt);
757 stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte);
758 stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt);
759 stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte);
760 stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt);
761 stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err);
762 stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err);
763 stats->rx_key_cache_miss +=
764 le32_to_cpu(tgt_stats->stats.rx.key_cache_miss);
765 stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err);
766 stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame);
767 stats->rx_ucast_rate =
768 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate));
770 ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats;
772 stats->tkip_local_mic_fail +=
773 le32_to_cpu(ccmp_stats->tkip_local_mic_fail);
774 stats->tkip_cnter_measures_invoked +=
775 le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked);
776 stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err);
778 stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err);
779 stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays);
781 stats->pwr_save_fail_cnt +=
782 le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt);
783 stats->noise_floor_calib =
784 a_sle32_to_cpu(tgt_stats->noise_floor_calib);
786 stats->cs_bmiss_cnt +=
787 le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt);
788 stats->cs_low_rssi_cnt +=
789 le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt);
790 stats->cs_connect_cnt +=
791 le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt);
792 stats->cs_discon_cnt +=
793 le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt);
795 stats->cs_ave_beacon_rssi =
796 a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi);
798 stats->cs_last_roam_msec =
799 tgt_stats->cserv_stats.cs_last_roam_msec;
800 stats->cs_snr = tgt_stats->cserv_stats.cs_snr;
801 stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi);
803 stats->lq_val = le32_to_cpu(tgt_stats->lq_val);
805 stats->wow_pkt_dropped +=
806 le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped);
807 stats->wow_host_pkt_wakeups +=
808 tgt_stats->wow_stats.wow_host_pkt_wakeups;
809 stats->wow_host_evt_wakeups +=
810 tgt_stats->wow_stats.wow_host_evt_wakeups;
811 stats->wow_evt_discarded +=
812 le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded);
814 stats->arp_received = le32_to_cpu(tgt_stats->arp_stats.arp_received);
815 stats->arp_replied = le32_to_cpu(tgt_stats->arp_stats.arp_replied);
816 stats->arp_matched = le32_to_cpu(tgt_stats->arp_stats.arp_matched);
818 if (test_bit(STATS_UPDATE_PEND, &vif->flags)) {
819 clear_bit(STATS_UPDATE_PEND, &vif->flags);
820 wake_up(&ar->event_wq);
824 static void ath6kl_add_le32(__le32 *var, __le32 val)
826 *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val));
829 void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len)
831 struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr;
832 struct ath6kl *ar = vif->ar;
833 struct wmi_ap_mode_stat *ap = &ar->ap_stats;
834 struct wmi_per_sta_stat *st_ap, *st_p;
837 if (vif->nw_type == AP_NETWORK) {
838 if (len < sizeof(*p))
841 for (ac = 0; ac < AP_MAX_NUM_STA; ac++) {
842 st_ap = &ap->sta[ac];
845 ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes);
846 ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts);
847 ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error);
848 ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard);
849 ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes);
850 ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts);
851 ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error);
852 ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard);
856 ath6kl_update_target_stats(vif, ptr, len);
860 void ath6kl_wakeup_event(void *dev)
862 struct ath6kl *ar = (struct ath6kl *) dev;
864 wake_up(&ar->event_wq);
867 void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr)
869 struct ath6kl *ar = (struct ath6kl *) devt;
872 wake_up(&ar->event_wq);
875 void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid)
877 struct ath6kl_sta *conn;
879 bool psq_empty = false;
880 struct ath6kl *ar = vif->ar;
881 struct ath6kl_mgmt_buff *mgmt_buf;
883 conn = ath6kl_find_sta_by_aid(ar, aid);
888 * Send out a packet queued on ps queue. When the ps queue
889 * becomes empty update the PVB for this station.
891 spin_lock_bh(&conn->psq_lock);
892 psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0);
893 spin_unlock_bh(&conn->psq_lock);
896 /* TODO: Send out a NULL data frame */
899 spin_lock_bh(&conn->psq_lock);
900 if (conn->mgmt_psq_len > 0) {
901 mgmt_buf = list_first_entry(&conn->mgmt_psq,
902 struct ath6kl_mgmt_buff, list);
903 list_del(&mgmt_buf->list);
904 conn->mgmt_psq_len--;
905 spin_unlock_bh(&conn->psq_lock);
907 conn->sta_flags |= STA_PS_POLLED;
908 ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx,
909 mgmt_buf->id, mgmt_buf->freq,
910 mgmt_buf->wait, mgmt_buf->buf,
911 mgmt_buf->len, mgmt_buf->no_cck);
912 conn->sta_flags &= ~STA_PS_POLLED;
915 skb = skb_dequeue(&conn->psq);
916 spin_unlock_bh(&conn->psq_lock);
918 conn->sta_flags |= STA_PS_POLLED;
919 ath6kl_data_tx(skb, vif->ndev);
920 conn->sta_flags &= ~STA_PS_POLLED;
923 spin_lock_bh(&conn->psq_lock);
924 psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0);
925 spin_unlock_bh(&conn->psq_lock);
928 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0);
931 void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif)
933 bool mcastq_empty = false;
935 struct ath6kl *ar = vif->ar;
938 * If there are no associated STAs, ignore the DTIM expiry event.
939 * There can be potential race conditions where the last associated
940 * STA may disconnect & before the host could clear the 'Indicate
941 * DTIM' request to the firmware, the firmware would have just
942 * indicated a DTIM expiry event. The race is between 'clear DTIM
943 * expiry cmd' going from the host to the firmware & the DTIM
944 * expiry event happening from the firmware to the host.
946 if (!ar->sta_list_index)
949 spin_lock_bh(&ar->mcastpsq_lock);
950 mcastq_empty = skb_queue_empty(&ar->mcastpsq);
951 spin_unlock_bh(&ar->mcastpsq_lock);
956 /* set the STA flag to dtim_expired for the frame to go out */
957 set_bit(DTIM_EXPIRED, &vif->flags);
959 spin_lock_bh(&ar->mcastpsq_lock);
960 while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) {
961 spin_unlock_bh(&ar->mcastpsq_lock);
963 ath6kl_data_tx(skb, vif->ndev);
965 spin_lock_bh(&ar->mcastpsq_lock);
967 spin_unlock_bh(&ar->mcastpsq_lock);
969 clear_bit(DTIM_EXPIRED, &vif->flags);
971 /* clear the LSB of the BitMapCtl field of the TIM IE */
972 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0);
975 void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid,
976 u8 assoc_resp_len, u8 *assoc_info,
977 u16 prot_reason_status)
979 struct ath6kl *ar = vif->ar;
981 if (vif->nw_type == AP_NETWORK) {
982 /* disconnect due to other STA vif switching channels */
983 if (reason == BSS_DISCONNECTED &&
984 prot_reason_status == WMI_AP_REASON_STA_ROAM)
985 ar->want_ch_switch |= 1 << vif->fw_vif_idx;
987 if (!ath6kl_remove_sta(ar, bssid, prot_reason_status))
990 /* if no more associated STAs, empty the mcast PS q */
991 if (ar->sta_list_index == 0) {
992 spin_lock_bh(&ar->mcastpsq_lock);
993 skb_queue_purge(&ar->mcastpsq);
994 spin_unlock_bh(&ar->mcastpsq_lock);
996 /* clear the LSB of the TIM IE's BitMapCtl field */
997 if (test_bit(WMI_READY, &ar->flag))
998 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
1002 if (!is_broadcast_ether_addr(bssid)) {
1003 /* send event to application */
1004 cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL);
1007 if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) {
1008 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
1009 clear_bit(CONNECTED, &vif->flags);
1014 ath6kl_cfg80211_disconnect_event(vif, reason, bssid,
1015 assoc_resp_len, assoc_info,
1016 prot_reason_status);
1018 aggr_reset_state(vif->aggr_cntxt->aggr_conn);
1020 del_timer(&vif->disconnect_timer);
1022 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "disconnect reason is %d\n", reason);
1025 * If the event is due to disconnect cmd from the host, only they
1026 * the target would stop trying to connect. Under any other
1027 * condition, target would keep trying to connect.
1029 if (reason == DISCONNECT_CMD) {
1030 if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag))
1031 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
1032 NONE_BSS_FILTER, 0);
1034 set_bit(CONNECT_PEND, &vif->flags);
1035 if (((reason == ASSOC_FAILED) &&
1036 (prot_reason_status == 0x11)) ||
1037 ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0) &&
1038 (vif->reconnect_flag == 1))) {
1039 set_bit(CONNECTED, &vif->flags);
1044 /* update connect & link status atomically */
1045 spin_lock_bh(&vif->if_lock);
1046 clear_bit(CONNECTED, &vif->flags);
1047 netif_carrier_off(vif->ndev);
1048 spin_unlock_bh(&vif->if_lock);
1050 if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1))
1051 vif->reconnect_flag = 0;
1053 if (reason != CSERV_DISCONNECT)
1054 ar->user_key_ctrl = 0;
1056 netif_stop_queue(vif->ndev);
1057 memset(vif->bssid, 0, sizeof(vif->bssid));
1060 ath6kl_tx_data_cleanup(ar);
1063 struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar)
1065 struct ath6kl_vif *vif;
1067 spin_lock_bh(&ar->list_lock);
1068 if (list_empty(&ar->vif_list)) {
1069 spin_unlock_bh(&ar->list_lock);
1073 vif = list_first_entry(&ar->vif_list, struct ath6kl_vif, list);
1075 spin_unlock_bh(&ar->list_lock);
1080 static int ath6kl_open(struct net_device *dev)
1082 struct ath6kl_vif *vif = netdev_priv(dev);
1084 set_bit(WLAN_ENABLED, &vif->flags);
1086 if (test_bit(CONNECTED, &vif->flags)) {
1087 netif_carrier_on(dev);
1088 netif_wake_queue(dev);
1090 netif_carrier_off(dev);
1095 static int ath6kl_close(struct net_device *dev)
1097 struct ath6kl_vif *vif = netdev_priv(dev);
1099 netif_stop_queue(dev);
1101 ath6kl_cfg80211_stop(vif);
1103 clear_bit(WLAN_ENABLED, &vif->flags);
1108 static struct net_device_stats *ath6kl_get_stats(struct net_device *dev)
1110 struct ath6kl_vif *vif = netdev_priv(dev);
1112 return &vif->net_stats;
1115 static int ath6kl_set_features(struct net_device *dev,
1116 netdev_features_t features)
1118 struct ath6kl_vif *vif = netdev_priv(dev);
1119 struct ath6kl *ar = vif->ar;
1122 if ((features & NETIF_F_RXCSUM) &&
1123 (ar->rx_meta_ver != WMI_META_VERSION_2)) {
1124 ar->rx_meta_ver = WMI_META_VERSION_2;
1125 err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
1127 ar->rx_meta_ver, 0, 0);
1129 dev->features = features & ~NETIF_F_RXCSUM;
1132 } else if (!(features & NETIF_F_RXCSUM) &&
1133 (ar->rx_meta_ver == WMI_META_VERSION_2)) {
1134 ar->rx_meta_ver = 0;
1135 err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
1137 ar->rx_meta_ver, 0, 0);
1139 dev->features = features | NETIF_F_RXCSUM;
1148 static void ath6kl_set_multicast_list(struct net_device *ndev)
1150 struct ath6kl_vif *vif = netdev_priv(ndev);
1151 bool mc_all_on = false;
1152 int mc_count = netdev_mc_count(ndev);
1153 struct netdev_hw_addr *ha;
1155 struct ath6kl_mc_filter *mc_filter, *tmp;
1156 struct list_head mc_filter_new;
1159 if (!test_bit(WMI_READY, &vif->ar->flag) ||
1160 !test_bit(WLAN_ENABLED, &vif->flags))
1163 /* Enable multicast-all filter. */
1164 mc_all_on = !!(ndev->flags & IFF_PROMISC) ||
1165 !!(ndev->flags & IFF_ALLMULTI) ||
1166 !!(mc_count > ATH6K_MAX_MC_FILTERS_PER_LIST);
1169 set_bit(NETDEV_MCAST_ALL_ON, &vif->flags);
1171 clear_bit(NETDEV_MCAST_ALL_ON, &vif->flags);
1173 if (test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
1174 vif->ar->fw_capabilities)) {
1175 mc_all_on = mc_all_on || (vif->ar->state == ATH6KL_STATE_ON);
1178 if (!(ndev->flags & IFF_MULTICAST)) {
1180 set_bit(NETDEV_MCAST_ALL_OFF, &vif->flags);
1182 clear_bit(NETDEV_MCAST_ALL_OFF, &vif->flags);
1185 /* Enable/disable "multicast-all" filter*/
1186 ath6kl_dbg(ATH6KL_DBG_TRC, "%s multicast-all filter\n",
1187 mc_all_on ? "enabling" : "disabling");
1189 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, vif->fw_vif_idx,
1192 ath6kl_warn("Failed to %s multicast-all receive\n",
1193 mc_all_on ? "enable" : "disable");
1197 if (test_bit(NETDEV_MCAST_ALL_ON, &vif->flags))
1200 /* Keep the driver and firmware mcast list in sync. */
1201 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) {
1203 netdev_for_each_mc_addr(ha, ndev) {
1204 if (memcmp(ha->addr, mc_filter->hw_addr,
1205 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) {
1213 * Delete the filter which was previously set
1214 * but not in the new request.
1216 ath6kl_dbg(ATH6KL_DBG_TRC,
1217 "Removing %pM from multicast filter\n",
1218 mc_filter->hw_addr);
1219 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi,
1220 vif->fw_vif_idx, mc_filter->hw_addr,
1223 ath6kl_warn("Failed to remove multicast filter:%pM\n",
1224 mc_filter->hw_addr);
1228 list_del(&mc_filter->list);
1233 INIT_LIST_HEAD(&mc_filter_new);
1235 netdev_for_each_mc_addr(ha, ndev) {
1237 list_for_each_entry(mc_filter, &vif->mc_filter, list) {
1238 if (memcmp(ha->addr, mc_filter->hw_addr,
1239 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) {
1246 mc_filter = kzalloc(sizeof(struct ath6kl_mc_filter),
1253 memcpy(mc_filter->hw_addr, ha->addr,
1254 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE);
1255 /* Set the multicast filter */
1256 ath6kl_dbg(ATH6KL_DBG_TRC,
1257 "Adding %pM to multicast filter list\n",
1258 mc_filter->hw_addr);
1259 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi,
1260 vif->fw_vif_idx, mc_filter->hw_addr,
1263 ath6kl_warn("Failed to add multicast filter :%pM\n",
1264 mc_filter->hw_addr);
1269 list_add_tail(&mc_filter->list, &mc_filter_new);
1274 list_splice_tail(&mc_filter_new, &vif->mc_filter);
1277 static const struct net_device_ops ath6kl_netdev_ops = {
1278 .ndo_open = ath6kl_open,
1279 .ndo_stop = ath6kl_close,
1280 .ndo_start_xmit = ath6kl_data_tx,
1281 .ndo_get_stats = ath6kl_get_stats,
1282 .ndo_set_features = ath6kl_set_features,
1283 .ndo_set_rx_mode = ath6kl_set_multicast_list,
1286 void init_netdev(struct net_device *dev)
1288 dev->netdev_ops = &ath6kl_netdev_ops;
1289 dev->destructor = free_netdev;
1290 dev->watchdog_timeo = ATH6KL_TX_TIMEOUT;
1292 dev->needed_headroom = ETH_HLEN;
1293 dev->needed_headroom += sizeof(struct ath6kl_llc_snap_hdr) +
1294 sizeof(struct wmi_data_hdr) + HTC_HDR_LENGTH
1295 + WMI_MAX_TX_META_SZ + ATH6KL_HTC_ALIGN_BYTES;
1297 dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM;