2
* Copyright (c) 2004-2011 Atheros Communications Inc.
4
* Permission to use, copy, modify, and/or distribute this software for any
5
* purpose with or without fee is hereby granted, provided that the above
6
* copyright notice and this permission notice appear in all copies.
8
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23
struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr)
25
struct ath6kl *ar = vif->ar;
26
struct ath6kl_sta *conn = NULL;
29
max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0;
31
for (i = 0; i < max_conn; i++) {
32
if (memcmp(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) {
33
conn = &ar->sta_list[i];
41
struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid)
43
struct ath6kl_sta *conn = NULL;
46
for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) {
47
if (ar->sta_list[ctr].aid == aid) {
48
conn = &ar->sta_list[ctr];
55
static void ath6kl_add_new_sta(struct ath6kl *ar, u8 *mac, u16 aid, u8 *wpaie,
56
u8 ielen, u8 keymgmt, u8 ucipher, u8 auth)
58
struct ath6kl_sta *sta;
63
sta = &ar->sta_list[free_slot];
64
memcpy(sta->mac, mac, ETH_ALEN);
65
if (ielen <= ATH6KL_MAX_IE)
66
memcpy(sta->wpa_ie, wpaie, ielen);
68
sta->keymgmt = keymgmt;
69
sta->ucipher = ucipher;
72
ar->sta_list_index = ar->sta_list_index | (1 << free_slot);
73
ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid);
76
static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i)
78
struct ath6kl_sta *sta = &ar->sta_list[i];
80
/* empty the queued pkts in the PS queue if any */
81
spin_lock_bh(&sta->psq_lock);
82
skb_queue_purge(&sta->psq);
83
spin_unlock_bh(&sta->psq_lock);
85
memset(&ar->ap_stats.sta[sta->aid - 1], 0,
86
sizeof(struct wmi_per_sta_stat));
87
memset(sta->mac, 0, ETH_ALEN);
88
memset(sta->wpa_ie, 0, ATH6KL_MAX_IE);
92
ar->sta_list_index = ar->sta_list_index & ~(1 << i);
96
static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason)
100
if (is_zero_ether_addr(mac))
103
if (is_broadcast_ether_addr(mac)) {
104
ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n");
106
for (i = 0; i < AP_MAX_NUM_STA; i++) {
107
if (!is_zero_ether_addr(ar->sta_list[i].mac)) {
108
ath6kl_sta_cleanup(ar, i);
113
for (i = 0; i < AP_MAX_NUM_STA; i++) {
114
if (memcmp(ar->sta_list[i].mac, mac, ETH_ALEN) == 0) {
115
ath6kl_dbg(ATH6KL_DBG_TRC,
116
"deleting station %pM aid=%d reason=%d\n",
117
mac, ar->sta_list[i].aid, reason);
118
ath6kl_sta_cleanup(ar, i);
128
enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac)
130
struct ath6kl *ar = devt;
131
return ar->ac2ep_map[ac];
134
struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar)
136
struct ath6kl_cookie *cookie;
138
cookie = ar->cookie_list;
139
if (cookie != NULL) {
140
ar->cookie_list = cookie->arc_list_next;
147
void ath6kl_cookie_init(struct ath6kl *ar)
151
ar->cookie_list = NULL;
152
ar->cookie_count = 0;
154
memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem));
156
for (i = 0; i < MAX_COOKIE_NUM; i++)
157
ath6kl_free_cookie(ar, &ar->cookie_mem[i]);
160
void ath6kl_cookie_cleanup(struct ath6kl *ar)
162
ar->cookie_list = NULL;
163
ar->cookie_count = 0;
166
void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie)
173
cookie->arc_list_next = ar->cookie_list;
174
ar->cookie_list = cookie;
179
* Read from the hardware through its diagnostic window. No cooperation
180
* from the firmware is required for this.
182
int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value)
186
ret = ath6kl_hif_diag_read32(ar, address, value);
188
ath6kl_warn("failed to read32 through diagnose window: %d\n",
197
* Write to the ATH6KL through its diagnostic window. No cooperation from
198
* the Target is required for this.
200
int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value)
204
ret = ath6kl_hif_diag_write32(ar, address, value);
207
ath6kl_err("failed to write 0x%x during diagnose window to 0x%d\n",
215
int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length)
217
u32 count, *buf = data;
220
if (WARN_ON(length % 4))
223
for (count = 0; count < length / 4; count++, address += 4) {
224
ret = ath6kl_diag_read32(ar, address, &buf[count]);
232
int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length)
238
if (WARN_ON(length % 4))
241
for (count = 0; count < length / 4; count++, address += 4) {
242
ret = ath6kl_diag_write32(ar, address, buf[count]);
250
int ath6kl_read_fwlogs(struct ath6kl *ar)
252
struct ath6kl_dbglog_hdr debug_hdr;
253
struct ath6kl_dbglog_buf debug_buf;
254
u32 address, length, dropped, firstbuf, debug_hdr_addr;
258
buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL);
262
address = TARG_VTOP(ar->target_type,
263
ath6kl_get_hi_item_addr(ar,
264
HI_ITEM(hi_dbglog_hdr)));
266
ret = ath6kl_diag_read32(ar, address, &debug_hdr_addr);
270
/* Get the contents of the ring buffer */
271
if (debug_hdr_addr == 0) {
272
ath6kl_warn("Invalid address for debug_hdr_addr\n");
277
address = TARG_VTOP(ar->target_type, debug_hdr_addr);
278
ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr));
280
address = TARG_VTOP(ar->target_type,
281
le32_to_cpu(debug_hdr.dbuf_addr));
283
dropped = le32_to_cpu(debug_hdr.dropped);
284
ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf));
289
address = TARG_VTOP(ar->target_type,
290
le32_to_cpu(debug_buf.buffer_addr));
291
length = le32_to_cpu(debug_buf.length);
293
if (length != 0 && (le32_to_cpu(debug_buf.length) <=
294
le32_to_cpu(debug_buf.bufsize))) {
295
length = ALIGN(length, 4);
297
ret = ath6kl_diag_read(ar, address,
302
ath6kl_debug_fwlog_event(ar, buf, length);
305
address = TARG_VTOP(ar->target_type,
306
le32_to_cpu(debug_buf.next));
307
ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf));
313
if (WARN_ON(loop == 0)) {
317
} while (address != firstbuf);
325
/* FIXME: move to a better place, target.h? */
326
#define AR6003_RESET_CONTROL_ADDRESS 0x00004000
327
#define AR6004_RESET_CONTROL_ADDRESS 0x00004000
329
void ath6kl_reset_device(struct ath6kl *ar, u32 target_type,
330
bool wait_fot_compltn, bool cold_reset)
336
if (target_type != TARGET_TYPE_AR6003 &&
337
target_type != TARGET_TYPE_AR6004)
340
data = cold_reset ? cpu_to_le32(RESET_CONTROL_COLD_RST) :
341
cpu_to_le32(RESET_CONTROL_MBOX_RST);
343
switch (target_type) {
344
case TARGET_TYPE_AR6003:
345
address = AR6003_RESET_CONTROL_ADDRESS;
347
case TARGET_TYPE_AR6004:
348
address = AR6004_RESET_CONTROL_ADDRESS;
351
address = AR6003_RESET_CONTROL_ADDRESS;
355
status = ath6kl_diag_write32(ar, address, data);
358
ath6kl_err("failed to reset target\n");
361
static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif)
366
for (index = WMI_MIN_KEY_INDEX; index <= WMI_MAX_KEY_INDEX; index++) {
367
if (vif->wep_key_list[index].key_len) {
368
keyusage = GROUP_USAGE;
369
if (index == vif->def_txkey_index)
370
keyusage |= TX_USAGE;
372
ath6kl_wmi_addkey_cmd(vif->ar->wmi, vif->fw_vif_idx,
376
vif->wep_key_list[index].key_len,
378
vif->wep_key_list[index].key,
379
KEY_OP_INIT_VAL, NULL,
385
void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel)
387
struct ath6kl *ar = vif->ar;
388
struct ath6kl_req_key *ik;
390
u8 key_rsc[ATH6KL_KEY_SEQ_LEN];
392
ik = &ar->ap_mode_bkey;
394
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel);
396
switch (vif->auth_mode) {
398
if (vif->prwise_crypto == WEP_CRYPT)
399
ath6kl_install_static_wep_keys(vif);
400
if (!ik->valid || ik->key_type != WAPI_CRYPT)
402
/* for WAPI, we need to set the delayed group key, continue: */
405
case (WPA_PSK_AUTH | WPA2_PSK_AUTH):
409
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed addkey for "
410
"the initial group key for AP mode\n");
411
memset(key_rsc, 0, sizeof(key_rsc));
412
res = ath6kl_wmi_addkey_cmd(
413
ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type,
414
GROUP_USAGE, ik->key_len, key_rsc, ATH6KL_KEY_SEQ_LEN,
416
KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG);
418
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed "
419
"addkey failed: %d\n", res);
424
ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0);
425
set_bit(CONNECTED, &vif->flags);
426
netif_carrier_on(vif->ndev);
429
void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr,
430
u8 keymgmt, u8 ucipher, u8 auth,
431
u8 assoc_req_len, u8 *assoc_info)
433
struct ath6kl *ar = vif->ar;
434
u8 *ies = NULL, *wpa_ie = NULL, *pos;
436
struct station_info sinfo;
438
ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid);
440
if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) {
441
struct ieee80211_mgmt *mgmt =
442
(struct ieee80211_mgmt *) assoc_info;
443
if (ieee80211_is_assoc_req(mgmt->frame_control) &&
444
assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) +
445
sizeof(mgmt->u.assoc_req)) {
446
ies = mgmt->u.assoc_req.variable;
447
ies_len = assoc_info + assoc_req_len - ies;
448
} else if (ieee80211_is_reassoc_req(mgmt->frame_control) &&
449
assoc_req_len >= sizeof(struct ieee80211_hdr_3addr)
450
+ sizeof(mgmt->u.reassoc_req)) {
451
ies = mgmt->u.reassoc_req.variable;
452
ies_len = assoc_info + assoc_req_len - ies;
457
while (pos && pos + 1 < ies + ies_len) {
458
if (pos + 2 + pos[1] > ies + ies_len)
460
if (pos[0] == WLAN_EID_RSN)
461
wpa_ie = pos; /* RSN IE */
462
else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
464
pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) {
466
wpa_ie = pos; /* WPA IE */
467
else if (pos[5] == 0x04) {
468
wpa_ie = pos; /* WPS IE */
469
break; /* overrides WPA/RSN IE */
471
} else if (pos[0] == 0x44 && wpa_ie == NULL) {
473
* Note: WAPI Parameter Set IE re-uses Element ID that
474
* was officially allocated for BSS AC Access Delay. As
475
* such, we need to be a bit more careful on when
476
* parsing the frame. However, BSS AC Access Delay
477
* element is not supposed to be included in
478
* (Re)Association Request frames, so this should not
481
wpa_ie = pos; /* WAPI IE */
487
ath6kl_add_new_sta(ar, mac_addr, aid, wpa_ie,
488
wpa_ie ? 2 + wpa_ie[1] : 0,
489
keymgmt, ucipher, auth);
491
/* send event to application */
492
memset(&sinfo, 0, sizeof(sinfo));
494
/* TODO: sinfo.generation */
496
sinfo.assoc_req_ies = ies;
497
sinfo.assoc_req_ies_len = ies_len;
498
sinfo.filled |= STATION_INFO_ASSOC_REQ_IES;
500
cfg80211_new_sta(vif->ndev, mac_addr, &sinfo, GFP_KERNEL);
502
netif_wake_queue(vif->ndev);
505
void disconnect_timer_handler(unsigned long ptr)
507
struct net_device *dev = (struct net_device *)ptr;
508
struct ath6kl_vif *vif = netdev_priv(dev);
510
ath6kl_init_profile_info(vif);
511
ath6kl_disconnect(vif);
514
void ath6kl_disconnect(struct ath6kl_vif *vif)
516
if (test_bit(CONNECTED, &vif->flags) ||
517
test_bit(CONNECT_PEND, &vif->flags)) {
518
ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
520
* Disconnect command is issued, clear the connect pending
521
* flag. The connected flag will be cleared in
522
* disconnect event notification.
524
clear_bit(CONNECT_PEND, &vif->flags);
528
/* WMI Event handlers */
530
void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver)
532
struct ath6kl *ar = devt;
534
memcpy(ar->mac_addr, datap, ETH_ALEN);
535
ath6kl_dbg(ATH6KL_DBG_TRC, "%s: mac addr = %pM\n",
536
__func__, ar->mac_addr);
538
ar->version.wlan_ver = sw_ver;
539
ar->version.abi_ver = abi_ver;
541
snprintf(ar->wiphy->fw_version,
542
sizeof(ar->wiphy->fw_version),
544
(ar->version.wlan_ver & 0xf0000000) >> 28,
545
(ar->version.wlan_ver & 0x0f000000) >> 24,
546
(ar->version.wlan_ver & 0x00ff0000) >> 16,
547
(ar->version.wlan_ver & 0x0000ffff));
549
/* indicate to the waiting thread that the ready event was received */
550
set_bit(WMI_READY, &ar->flag);
551
wake_up(&ar->event_wq);
554
void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status)
556
struct ath6kl *ar = vif->ar;
557
bool aborted = false;
559
if (status != WMI_SCAN_STATUS_SUCCESS)
562
ath6kl_cfg80211_scan_complete_event(vif, aborted);
564
if (!ar->usr_bss_filter) {
565
clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
566
ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
570
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "scan complete: %d\n", status);
573
void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid,
574
u16 listen_int, u16 beacon_int,
575
enum network_type net_type, u8 beacon_ie_len,
576
u8 assoc_req_len, u8 assoc_resp_len,
579
struct ath6kl *ar = vif->ar;
581
ath6kl_cfg80211_connect_event(vif, channel, bssid,
582
listen_int, beacon_int,
583
net_type, beacon_ie_len,
584
assoc_req_len, assoc_resp_len,
587
memcpy(vif->bssid, bssid, sizeof(vif->bssid));
588
vif->bss_ch = channel;
590
if ((vif->nw_type == INFRA_NETWORK))
591
ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
595
netif_wake_queue(vif->ndev);
597
/* Update connect & link status atomically */
598
spin_lock_bh(&vif->if_lock);
599
set_bit(CONNECTED, &vif->flags);
600
clear_bit(CONNECT_PEND, &vif->flags);
601
netif_carrier_on(vif->ndev);
602
spin_unlock_bh(&vif->if_lock);
604
aggr_reset_state(vif->aggr_cntxt);
605
vif->reconnect_flag = 0;
607
if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) {
608
memset(ar->node_map, 0, sizeof(ar->node_map));
610
ar->next_ep_id = ENDPOINT_2;
613
if (!ar->usr_bss_filter) {
614
set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
615
ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
616
CURRENT_BSS_FILTER, 0);
620
void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast)
622
struct ath6kl_sta *sta;
623
struct ath6kl *ar = vif->ar;
627
* For AP case, keyid will have aid of STA which sent pkt with
628
* MIC error. Use this aid to get MAC & send it to hostapd.
630
if (vif->nw_type == AP_NETWORK) {
631
sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2));
635
ath6kl_dbg(ATH6KL_DBG_TRC,
636
"ap tkip mic error received from aid=%d\n", keyid);
638
memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */
639
cfg80211_michael_mic_failure(vif->ndev, sta->mac,
640
NL80211_KEYTYPE_PAIRWISE, keyid,
643
ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast);
647
static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len)
649
struct wmi_target_stats *tgt_stats =
650
(struct wmi_target_stats *) ptr;
651
struct ath6kl *ar = vif->ar;
652
struct target_stats *stats = &vif->target_stats;
653
struct tkip_ccmp_stats *ccmp_stats;
656
if (len < sizeof(*tgt_stats))
659
ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n");
661
stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt);
662
stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte);
663
stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt);
664
stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte);
665
stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt);
666
stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte);
667
stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt);
668
stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte);
669
stats->tx_rts_success_cnt +=
670
le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt);
672
for (ac = 0; ac < WMM_NUM_AC; ac++)
673
stats->tx_pkt_per_ac[ac] +=
674
le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]);
676
stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err);
677
stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt);
678
stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt);
679
stats->tx_mult_retry_cnt +=
680
le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt);
681
stats->tx_rts_fail_cnt +=
682
le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt);
683
stats->tx_ucast_rate =
684
ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate));
686
stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt);
687
stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte);
688
stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt);
689
stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte);
690
stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt);
691
stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte);
692
stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt);
693
stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte);
694
stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt);
695
stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err);
696
stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err);
697
stats->rx_key_cache_miss +=
698
le32_to_cpu(tgt_stats->stats.rx.key_cache_miss);
699
stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err);
700
stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame);
701
stats->rx_ucast_rate =
702
ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate));
704
ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats;
706
stats->tkip_local_mic_fail +=
707
le32_to_cpu(ccmp_stats->tkip_local_mic_fail);
708
stats->tkip_cnter_measures_invoked +=
709
le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked);
710
stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err);
712
stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err);
713
stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays);
715
stats->pwr_save_fail_cnt +=
716
le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt);
717
stats->noise_floor_calib =
718
a_sle32_to_cpu(tgt_stats->noise_floor_calib);
720
stats->cs_bmiss_cnt +=
721
le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt);
722
stats->cs_low_rssi_cnt +=
723
le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt);
724
stats->cs_connect_cnt +=
725
le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt);
726
stats->cs_discon_cnt +=
727
le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt);
729
stats->cs_ave_beacon_rssi =
730
a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi);
732
stats->cs_last_roam_msec =
733
tgt_stats->cserv_stats.cs_last_roam_msec;
734
stats->cs_snr = tgt_stats->cserv_stats.cs_snr;
735
stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi);
737
stats->lq_val = le32_to_cpu(tgt_stats->lq_val);
739
stats->wow_pkt_dropped +=
740
le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped);
741
stats->wow_host_pkt_wakeups +=
742
tgt_stats->wow_stats.wow_host_pkt_wakeups;
743
stats->wow_host_evt_wakeups +=
744
tgt_stats->wow_stats.wow_host_evt_wakeups;
745
stats->wow_evt_discarded +=
746
le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded);
748
if (test_bit(STATS_UPDATE_PEND, &vif->flags)) {
749
clear_bit(STATS_UPDATE_PEND, &vif->flags);
750
wake_up(&ar->event_wq);
754
static void ath6kl_add_le32(__le32 *var, __le32 val)
756
*var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val));
759
void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len)
761
struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr;
762
struct ath6kl *ar = vif->ar;
763
struct wmi_ap_mode_stat *ap = &ar->ap_stats;
764
struct wmi_per_sta_stat *st_ap, *st_p;
767
if (vif->nw_type == AP_NETWORK) {
768
if (len < sizeof(*p))
771
for (ac = 0; ac < AP_MAX_NUM_STA; ac++) {
772
st_ap = &ap->sta[ac];
775
ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes);
776
ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts);
777
ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error);
778
ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard);
779
ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes);
780
ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts);
781
ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error);
782
ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard);
786
ath6kl_update_target_stats(vif, ptr, len);
790
void ath6kl_wakeup_event(void *dev)
792
struct ath6kl *ar = (struct ath6kl *) dev;
794
wake_up(&ar->event_wq);
797
void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr)
799
struct ath6kl *ar = (struct ath6kl *) devt;
802
wake_up(&ar->event_wq);
805
void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid)
807
struct ath6kl_sta *conn;
809
bool psq_empty = false;
810
struct ath6kl *ar = vif->ar;
812
conn = ath6kl_find_sta_by_aid(ar, aid);
817
* Send out a packet queued on ps queue. When the ps queue
818
* becomes empty update the PVB for this station.
820
spin_lock_bh(&conn->psq_lock);
821
psq_empty = skb_queue_empty(&conn->psq);
822
spin_unlock_bh(&conn->psq_lock);
825
/* TODO: Send out a NULL data frame */
828
spin_lock_bh(&conn->psq_lock);
829
skb = skb_dequeue(&conn->psq);
830
spin_unlock_bh(&conn->psq_lock);
832
conn->sta_flags |= STA_PS_POLLED;
833
ath6kl_data_tx(skb, vif->ndev);
834
conn->sta_flags &= ~STA_PS_POLLED;
836
spin_lock_bh(&conn->psq_lock);
837
psq_empty = skb_queue_empty(&conn->psq);
838
spin_unlock_bh(&conn->psq_lock);
841
ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0);
844
void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif)
846
bool mcastq_empty = false;
848
struct ath6kl *ar = vif->ar;
851
* If there are no associated STAs, ignore the DTIM expiry event.
852
* There can be potential race conditions where the last associated
853
* STA may disconnect & before the host could clear the 'Indicate
854
* DTIM' request to the firmware, the firmware would have just
855
* indicated a DTIM expiry event. The race is between 'clear DTIM
856
* expiry cmd' going from the host to the firmware & the DTIM
857
* expiry event happening from the firmware to the host.
859
if (!ar->sta_list_index)
862
spin_lock_bh(&ar->mcastpsq_lock);
863
mcastq_empty = skb_queue_empty(&ar->mcastpsq);
864
spin_unlock_bh(&ar->mcastpsq_lock);
869
/* set the STA flag to dtim_expired for the frame to go out */
870
set_bit(DTIM_EXPIRED, &vif->flags);
872
spin_lock_bh(&ar->mcastpsq_lock);
873
while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) {
874
spin_unlock_bh(&ar->mcastpsq_lock);
876
ath6kl_data_tx(skb, vif->ndev);
878
spin_lock_bh(&ar->mcastpsq_lock);
880
spin_unlock_bh(&ar->mcastpsq_lock);
882
clear_bit(DTIM_EXPIRED, &vif->flags);
884
/* clear the LSB of the BitMapCtl field of the TIM IE */
885
ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0);
888
void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid,
889
u8 assoc_resp_len, u8 *assoc_info,
890
u16 prot_reason_status)
892
struct ath6kl *ar = vif->ar;
894
if (vif->nw_type == AP_NETWORK) {
895
if (!ath6kl_remove_sta(ar, bssid, prot_reason_status))
898
/* if no more associated STAs, empty the mcast PS q */
899
if (ar->sta_list_index == 0) {
900
spin_lock_bh(&ar->mcastpsq_lock);
901
skb_queue_purge(&ar->mcastpsq);
902
spin_unlock_bh(&ar->mcastpsq_lock);
904
/* clear the LSB of the TIM IE's BitMapCtl field */
905
if (test_bit(WMI_READY, &ar->flag))
906
ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
910
if (!is_broadcast_ether_addr(bssid)) {
911
/* send event to application */
912
cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL);
915
if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) {
916
memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
917
clear_bit(CONNECTED, &vif->flags);
922
ath6kl_cfg80211_disconnect_event(vif, reason, bssid,
923
assoc_resp_len, assoc_info,
926
aggr_reset_state(vif->aggr_cntxt);
928
del_timer(&vif->disconnect_timer);
930
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "disconnect reason is %d\n", reason);
933
* If the event is due to disconnect cmd from the host, only they
934
* the target would stop trying to connect. Under any other
935
* condition, target would keep trying to connect.
937
if (reason == DISCONNECT_CMD) {
938
if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag))
939
ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
942
set_bit(CONNECT_PEND, &vif->flags);
943
if (((reason == ASSOC_FAILED) &&
944
(prot_reason_status == 0x11)) ||
945
((reason == ASSOC_FAILED) && (prot_reason_status == 0x0)
946
&& (vif->reconnect_flag == 1))) {
947
set_bit(CONNECTED, &vif->flags);
952
/* update connect & link status atomically */
953
spin_lock_bh(&vif->if_lock);
954
clear_bit(CONNECTED, &vif->flags);
955
netif_carrier_off(vif->ndev);
956
spin_unlock_bh(&vif->if_lock);
958
if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1))
959
vif->reconnect_flag = 0;
961
if (reason != CSERV_DISCONNECT)
962
ar->user_key_ctrl = 0;
964
netif_stop_queue(vif->ndev);
965
memset(vif->bssid, 0, sizeof(vif->bssid));
968
ath6kl_tx_data_cleanup(ar);
971
struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar)
973
struct ath6kl_vif *vif;
975
spin_lock_bh(&ar->list_lock);
976
if (list_empty(&ar->vif_list)) {
977
spin_unlock_bh(&ar->list_lock);
981
vif = list_first_entry(&ar->vif_list, struct ath6kl_vif, list);
983
spin_unlock_bh(&ar->list_lock);
988
static int ath6kl_open(struct net_device *dev)
990
struct ath6kl_vif *vif = netdev_priv(dev);
992
set_bit(WLAN_ENABLED, &vif->flags);
994
if (test_bit(CONNECTED, &vif->flags)) {
995
netif_carrier_on(dev);
996
netif_wake_queue(dev);
998
netif_carrier_off(dev);
1003
static int ath6kl_close(struct net_device *dev)
1005
struct ath6kl_vif *vif = netdev_priv(dev);
1007
netif_stop_queue(dev);
1009
ath6kl_cfg80211_stop(vif);
1011
clear_bit(WLAN_ENABLED, &vif->flags);
1016
static struct net_device_stats *ath6kl_get_stats(struct net_device *dev)
1018
struct ath6kl_vif *vif = netdev_priv(dev);
1020
return &vif->net_stats;
1023
static struct net_device_ops ath6kl_netdev_ops = {
1024
.ndo_open = ath6kl_open,
1025
.ndo_stop = ath6kl_close,
1026
.ndo_start_xmit = ath6kl_data_tx,
1027
.ndo_get_stats = ath6kl_get_stats,
1030
void init_netdev(struct net_device *dev)
1032
netdev_attach_ops(dev, &ath6kl_netdev_ops);
1033
dev->destructor = free_netdev;
1034
dev->watchdog_timeo = ATH6KL_TX_TIMEOUT;
1036
dev->needed_headroom = ETH_HLEN;
1037
dev->needed_headroom += sizeof(struct ath6kl_llc_snap_hdr) +
1038
sizeof(struct wmi_data_hdr) + HTC_HDR_LENGTH
1039
+ WMI_MAX_TX_META_SZ + ATH6KL_HTC_ALIGN_BYTES;