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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
[deliverable/linux.git] / drivers / net / wireless / ath / ath6kl / main.c
CommitLineData
bdcd8170
KV		 1/*
2 * Copyright (c) 2004-2011 Atheros Communications Inc.
1b2df407 3 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
bdcd8170
KV		 4 *
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.
8 *
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.
16 */
17
516304b0
JP		 18#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
19
bdcd8170
KV		 20#include "core.h"
21#include "hif-ops.h"
22#include "cfg80211.h"
23#include "target.h"
24#include "debug.h"
25
6765d0aa 26struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr)
bdcd8170 27{
6765d0aa 28 struct ath6kl *ar = vif->ar;
bdcd8170
KV		 29 struct ath6kl_sta *conn = NULL;
30 u8 i, max_conn;
31
f5938f24 32 max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0;
bdcd8170
KV		 33
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];
37 break;
38 }
39 }
40
41 return conn;
42}
43
44struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid)
45{
46 struct ath6kl_sta *conn = NULL;
47 u8 ctr;
48
49 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) {
50 if (ar->sta_list[ctr].aid == aid) {
51 conn = &ar->sta_list[ctr];
52 break;
53 }
54 }
55 return conn;
56}
57
17741c8d
VT		 58static 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)
bdcd8170 61{
17741c8d 62 struct ath6kl *ar = vif->ar;
bdcd8170
KV		 63 struct ath6kl_sta *sta;
64 u8 free_slot;
65
66 free_slot = aid - 1;
67
68 sta = &ar->sta_list[free_slot];
69 memcpy(sta->mac, mac, ETH_ALEN);
3c774bba
JM		 70 if (ielen <= ATH6KL_MAX_IE)
71 memcpy(sta->wpa_ie, wpaie, ielen);
bdcd8170
KV		 72 sta->aid = aid;
73 sta->keymgmt = keymgmt;
74 sta->ucipher = ucipher;
75 sta->auth = auth;
c1762a3f 76 sta->apsd_info = apsd_info;
bdcd8170
KV		 77
78 ar->sta_list_index = ar->sta_list_index | (1 << free_slot);
79 ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid);
c8651541 80 aggr_conn_init(vif, vif->aggr_cntxt, sta->aggr_conn);
bdcd8170
KV		 81}
82
83static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i)
84{
85 struct ath6kl_sta *sta = &ar->sta_list[i];
d0ff7383 86 struct ath6kl_mgmt_buff *entry, *tmp;
bdcd8170
KV		 87
88 /* empty the queued pkts in the PS queue if any */
89 spin_lock_bh(&sta->psq_lock);
90 skb_queue_purge(&sta->psq);
c1762a3f 91 skb_queue_purge(&sta->apsdq);
d0ff7383
NG		 92
93 if (sta->mgmt_psq_len != 0) {
94 list_for_each_entry_safe(entry, tmp, &sta->mgmt_psq, list) {
95 kfree(entry);
96 }
97 INIT_LIST_HEAD(&sta->mgmt_psq);
98 sta->mgmt_psq_len = 0;
99 }
100
bdcd8170
KV		 101 spin_unlock_bh(&sta->psq_lock);
102
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);
107 sta->aid = 0;
108 sta->sta_flags = 0;
109
110 ar->sta_list_index = ar->sta_list_index & ~(1 << i);
1d2a4456 111 aggr_reset_state(sta->aggr_conn);
bdcd8170
KV		 112}
113
114static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason)
115{
116 u8 i, removed = 0;
117
118 if (is_zero_ether_addr(mac))
119 return removed;
120
121 if (is_broadcast_ether_addr(mac)) {
122 ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n");
123
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);
127 removed = 1;
128 }
129 }
130 } else {
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);
137 removed = 1;
138 break;
139 }
140 }
141 }
142
143 return removed;
144}
145
146enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac)
147{
148 struct ath6kl *ar = devt;
149 return ar->ac2ep_map[ac];
150}
151
152struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar)
153{
154 struct ath6kl_cookie *cookie;
155
156 cookie = ar->cookie_list;
157 if (cookie != NULL) {
158 ar->cookie_list = cookie->arc_list_next;
159 ar->cookie_count--;
160 }
161
162 return cookie;
163}
164
165void ath6kl_cookie_init(struct ath6kl *ar)
166{
167 u32 i;
168
169 ar->cookie_list = NULL;
170 ar->cookie_count = 0;
171
172 memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem));
173
174 for (i = 0; i < MAX_COOKIE_NUM; i++)
175 ath6kl_free_cookie(ar, &ar->cookie_mem[i]);
176}
177
178void ath6kl_cookie_cleanup(struct ath6kl *ar)
179{
180 ar->cookie_list = NULL;
181 ar->cookie_count = 0;
182}
183
184void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie)
185{
186 /* Insert first */
187
188 if (!ar || !cookie)
189 return;
190
191 cookie->arc_list_next = ar->cookie_list;
192 ar->cookie_list = cookie;
193 ar->cookie_count++;
194}
195
bdcd8170 196/*
addb44be
KV		 197 * Read from the hardware through its diagnostic window. No cooperation
198 * from the firmware is required for this.
bdcd8170 199 */
addb44be 200int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value)
bdcd8170 201{
addb44be 202 int ret;
bdcd8170 203
c7111495 204 ret = ath6kl_hif_diag_read32(ar, address, value);
addb44be
KV		 205 if (ret) {
206 ath6kl_warn("failed to read32 through diagnose window: %d\n",
207 ret);
208 return ret;
bdcd8170
KV		 209 }
210
addb44be 211 return 0;
bdcd8170
KV		 212}
213
bdcd8170
KV		 214/*
215 * Write to the ATH6KL through its diagnostic window. No cooperation from
216 * the Target is required for this.
217 */
f9ea0753 218int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value)
bdcd8170 219{
addb44be 220 int ret;
bdcd8170 221
c7111495
KV		 222 ret = ath6kl_hif_diag_write32(ar, address, value);
223
addb44be
KV		 224 if (ret) {
225 ath6kl_err("failed to write 0x%x during diagnose window to 0x%d\n",
226 address, value);
227 return ret;
bdcd8170
KV		 228 }
229
c7111495 230 return 0;
bdcd8170
KV		 231}
232
addb44be 233int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length)
bdcd8170 234{
addb44be
KV		 235 u32 count, *buf = data;
236 int ret;
bdcd8170 237
addb44be
KV		 238 if (WARN_ON(length % 4))
239 return -EINVAL;
240
241 for (count = 0; count < length / 4; count++, address += 4) {
242 ret = ath6kl_diag_read32(ar, address, &buf[count]);
243 if (ret)
244 return ret;
bdcd8170
KV		 245 }
246
addb44be
KV		 247 return 0;
248}
249
250int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length)
251{
f9ea0753
VT		 252 u32 count;
253 __le32 *buf = data;
addb44be
KV		 254 int ret;
255
256 if (WARN_ON(length % 4))
257 return -EINVAL;
258
259 for (count = 0; count < length / 4; count++, address += 4) {
260 ret = ath6kl_diag_write32(ar, address, buf[count]);
261 if (ret)
262 return ret;
263 }
264
265 return 0;
bdcd8170
KV		 266}
267
bc07ddb2
KV		 268int ath6kl_read_fwlogs(struct ath6kl *ar)
269{
270 struct ath6kl_dbglog_hdr debug_hdr;
271 struct ath6kl_dbglog_buf debug_buf;
272 u32 address, length, dropped, firstbuf, debug_hdr_addr;
e80ec84d 273 int ret, loop;
bc07ddb2
KV		 274 u8 *buf;
275
276 buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL);
277 if (!buf)
278 return -ENOMEM;
279
280 address = TARG_VTOP(ar->target_type,
281 ath6kl_get_hi_item_addr(ar,
282 HI_ITEM(hi_dbglog_hdr)));
283
284 ret = ath6kl_diag_read32(ar, address, &debug_hdr_addr);
285 if (ret)
286 goto out;
287
288 /* Get the contents of the ring buffer */
289 if (debug_hdr_addr == 0) {
290 ath6kl_warn("Invalid address for debug_hdr_addr\n");
291 ret = -EINVAL;
292 goto out;
293 }
294
295 address = TARG_VTOP(ar->target_type, debug_hdr_addr);
296 ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr));
297
298 address = TARG_VTOP(ar->target_type,
299 le32_to_cpu(debug_hdr.dbuf_addr));
300 firstbuf = address;
301 dropped = le32_to_cpu(debug_hdr.dropped);
302 ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf));
303
304 loop = 100;
305
306 do {
307 address = TARG_VTOP(ar->target_type,
308 le32_to_cpu(debug_buf.buffer_addr));
309 length = le32_to_cpu(debug_buf.length);
310
311 if (length != 0 && (le32_to_cpu(debug_buf.length) <=
312 le32_to_cpu(debug_buf.bufsize))) {
313 length = ALIGN(length, 4);
314
315 ret = ath6kl_diag_read(ar, address,
316 buf, length);
317 if (ret)
318 goto out;
319
320 ath6kl_debug_fwlog_event(ar, buf, length);
321 }
322
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));
326 if (ret)
327 goto out;
328
329 loop--;
330
331 if (WARN_ON(loop == 0)) {
332 ret = -ETIMEDOUT;
333 goto out;
334 }
335 } while (address != firstbuf);
336
337out:
338 kfree(buf);
339
340 return ret;
341}
342
31024d99
KF		 343/* FIXME: move to a better place, target.h? */
344#define AR6003_RESET_CONTROL_ADDRESS 0x00004000
345#define AR6004_RESET_CONTROL_ADDRESS 0x00004000
346
6db8fa53
VT		 347void ath6kl_reset_device(struct ath6kl *ar, u32 target_type,
348 bool wait_fot_compltn, bool cold_reset)
bdcd8170
KV		 349{
350 int status = 0;
351 u32 address;
f9ea0753 352 __le32 data;
bdcd8170 353
31024d99 354 if (target_type != TARGET_TYPE_AR6003 &&
96f1fadc 355 target_type != TARGET_TYPE_AR6004)
bdcd8170
KV		 356 return;
357
f9ea0753
VT		 358 data = cold_reset ? cpu_to_le32(RESET_CONTROL_COLD_RST) :
359 cpu_to_le32(RESET_CONTROL_MBOX_RST);
bdcd8170 360
31024d99
KF		 361 switch (target_type) {
362 case TARGET_TYPE_AR6003:
363 address = AR6003_RESET_CONTROL_ADDRESS;
364 break;
365 case TARGET_TYPE_AR6004:
366 address = AR6004_RESET_CONTROL_ADDRESS;
367 break;
31024d99
KF		 368 }
369
addb44be 370 status = ath6kl_diag_write32(ar, address, data);
bdcd8170
KV		 371
372 if (status)
373 ath6kl_err("failed to reset target\n");
374}
375
240d2799 376static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif)
bdcd8170
KV		 377{
378 u8 index;
379 u8 keyusage;
380
792ecb33 381 for (index = 0; index <= WMI_MAX_KEY_INDEX; index++) {
6f2a73f9 382 if (vif->wep_key_list[index].key_len) {
bdcd8170 383 keyusage = GROUP_USAGE;
3450334f 384 if (index == vif->def_txkey_index)
bdcd8170
KV		 385 keyusage |= TX_USAGE;
386
240d2799 387 ath6kl_wmi_addkey_cmd(vif->ar->wmi, vif->fw_vif_idx,
bdcd8170
KV		 388 index,
389 WEP_CRYPT,
390 keyusage,
6f2a73f9 391 vif->wep_key_list[index].key_len,
f4bb9a6f 392 NULL, 0,
6f2a73f9 393 vif->wep_key_list[index].key,
bdcd8170
KV		 394 KEY_OP_INIT_VAL, NULL,
395 NO_SYNC_WMIFLAG);
396 }
397 }
398}
399
240d2799 400void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel)
bdcd8170 401{
240d2799 402 struct ath6kl *ar = vif->ar;
bdcd8170 403 struct ath6kl_req_key *ik;
9a5b1318
JM		 404 int res;
405 u8 key_rsc[ATH6KL_KEY_SEQ_LEN];
bdcd8170 406
572e27c0 407 ik = &ar->ap_mode_bkey;
bdcd8170 408
572e27c0 409 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel);
9a5b1318 410
3450334f 411 switch (vif->auth_mode) {
572e27c0 412 case NONE_AUTH:
3450334f 413 if (vif->prwise_crypto == WEP_CRYPT)
240d2799 414 ath6kl_install_static_wep_keys(vif);
4703290a
JM		 415 if (!ik->valid || ik->key_type != WAPI_CRYPT)
416 break;
417 /* for WAPI, we need to set the delayed group key, continue: */
572e27c0
JM		 418 case WPA_PSK_AUTH:
419 case WPA2_PSK_AUTH:
420 case (WPA_PSK_AUTH | WPA2_PSK_AUTH):
421 if (!ik->valid)
bdcd8170 422 break;
9a5b1318 423
572e27c0
JM		 424 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed addkey for "
425 "the initial group key for AP mode\n");
426 memset(key_rsc, 0, sizeof(key_rsc));
427 res = ath6kl_wmi_addkey_cmd(
334234b5 428 ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type,
f4bb9a6f
JM		 429 GROUP_USAGE, ik->key_len, key_rsc, ATH6KL_KEY_SEQ_LEN,
430 ik->key,
572e27c0
JM		 431 KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG);
432 if (res) {
433 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed "
434 "addkey failed: %d\n", res);
bdcd8170 435 }
572e27c0 436 break;
bdcd8170
KV		 437 }
438
240d2799 439 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0);
59c98449 440 set_bit(CONNECTED, &vif->flags);
240d2799 441 netif_carrier_on(vif->ndev);
572e27c0
JM		 442}
443
240d2799 444void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr,
572e27c0 445 u8 keymgmt, u8 ucipher, u8 auth,
c1762a3f 446 u8 assoc_req_len, u8 *assoc_info, u8 apsd_info)
572e27c0
JM		 447{
448 u8 *ies = NULL, *wpa_ie = NULL, *pos;
449 size_t ies_len = 0;
450 struct station_info sinfo;
451
452 ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid);
bdcd8170 453
3c774bba
JM		 454 if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) {
455 struct ieee80211_mgmt *mgmt =
456 (struct ieee80211_mgmt *) assoc_info;
457 if (ieee80211_is_assoc_req(mgmt->frame_control) &&
458 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) +
459 sizeof(mgmt->u.assoc_req)) {
460 ies = mgmt->u.assoc_req.variable;
461 ies_len = assoc_info + assoc_req_len - ies;
462 } else if (ieee80211_is_reassoc_req(mgmt->frame_control) &&
463 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr)
464 + sizeof(mgmt->u.reassoc_req)) {
465 ies = mgmt->u.reassoc_req.variable;
466 ies_len = assoc_info + assoc_req_len - ies;
467 }
468 }
469
470 pos = ies;
471 while (pos && pos + 1 < ies + ies_len) {
472 if (pos + 2 + pos[1] > ies + ies_len)
473 break;
474 if (pos[0] == WLAN_EID_RSN)
475 wpa_ie = pos; /* RSN IE */
476 else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
477 pos[1] >= 4 &&
478 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) {
479 if (pos[5] == 0x01)
480 wpa_ie = pos; /* WPA IE */
481 else if (pos[5] == 0x04) {
482 wpa_ie = pos; /* WPS IE */
483 break; /* overrides WPA/RSN IE */
484 }
30677ae0
DS		 485 } else if (pos[0] == 0x44 && wpa_ie == NULL) {
486 /*
487 * Note: WAPI Parameter Set IE re-uses Element ID that
488 * was officially allocated for BSS AC Access Delay. As
489 * such, we need to be a bit more careful on when
490 * parsing the frame. However, BSS AC Access Delay
491 * element is not supposed to be included in
492 * (Re)Association Request frames, so this should not
493 * cause problems.
494 */
495 wpa_ie = pos; /* WAPI IE */
496 break;
3c774bba
JM		 497 }
498 pos += 2 + pos[1];
499 }
500
17741c8d 501 ath6kl_add_new_sta(vif, mac_addr, aid, wpa_ie,
3c774bba 502 wpa_ie ? 2 + wpa_ie[1] : 0,
c1762a3f 503 keymgmt, ucipher, auth, apsd_info);
bdcd8170
KV		 504
505 /* send event to application */
506 memset(&sinfo, 0, sizeof(sinfo));
507
508 /* TODO: sinfo.generation */
3c774bba
JM		 509
510 sinfo.assoc_req_ies = ies;
511 sinfo.assoc_req_ies_len = ies_len;
512 sinfo.filled |= STATION_INFO_ASSOC_REQ_IES;
513
240d2799 514 cfg80211_new_sta(vif->ndev, mac_addr, &sinfo, GFP_KERNEL);
bdcd8170 515
240d2799 516 netif_wake_queue(vif->ndev);
bdcd8170
KV		 517}
518
bdcd8170
KV		 519void disconnect_timer_handler(unsigned long ptr)
520{
521 struct net_device *dev = (struct net_device *)ptr;
334234b5 522 struct ath6kl_vif *vif = netdev_priv(dev);
bdcd8170 523
e29f25f5 524 ath6kl_init_profile_info(vif);
240d2799 525 ath6kl_disconnect(vif);
bdcd8170
KV		 526}
527
240d2799 528void ath6kl_disconnect(struct ath6kl_vif *vif)
bdcd8170 529{
59c98449
VT		 530 if (test_bit(CONNECTED, &vif->flags) ||
531 test_bit(CONNECT_PEND, &vif->flags)) {
240d2799 532 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
bdcd8170
KV		 533 /*
534 * Disconnect command is issued, clear the connect pending
535 * flag. The connected flag will be cleared in
536 * disconnect event notification.
537 */
59c98449 538 clear_bit(CONNECT_PEND, &vif->flags);
bdcd8170
KV		 539 }
540}
541
542/* WMI Event handlers */
543
bdcd8170
KV		 544void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver)
545{
546 struct ath6kl *ar = devt;
bdcd8170 547
d66ea4f9 548 memcpy(ar->mac_addr, datap, ETH_ALEN);
bdcd8170 549 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: mac addr = %pM\n",
d66ea4f9 550 __func__, ar->mac_addr);
bdcd8170
KV		 551
552 ar->version.wlan_ver = sw_ver;
553 ar->version.abi_ver = abi_ver;
554
be98e3a4
VT		 555 snprintf(ar->wiphy->fw_version,
556 sizeof(ar->wiphy->fw_version),
bdcd8170
KV		 557 "%u.%u.%u.%u",
558 (ar->version.wlan_ver & 0xf0000000) >> 28,
559 (ar->version.wlan_ver & 0x0f000000) >> 24,
560 (ar->version.wlan_ver & 0x00ff0000) >> 16,
561 (ar->version.wlan_ver & 0x0000ffff));
562
563 /* indicate to the waiting thread that the ready event was received */
564 set_bit(WMI_READY, &ar->flag);
565 wake_up(&ar->event_wq);
bdcd8170
KV		 566}
567
240d2799 568void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status)
bdcd8170 569{
240d2799 570 struct ath6kl *ar = vif->ar;
1c17d313 571 bool aborted = false;
59c98449 572
1c17d313
KV		 573 if (status != WMI_SCAN_STATUS_SUCCESS)
574 aborted = true;
575
576 ath6kl_cfg80211_scan_complete_event(vif, aborted);
bdcd8170 577
551185ca 578 if (!ar->usr_bss_filter) {
59c98449 579 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
240d2799
VT		 580 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
581 NONE_BSS_FILTER, 0);
551185ca 582 }
bdcd8170 583
d23ace77 584 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "scan complete: %d\n", status);
bdcd8170
KV		 585}
586
240d2799 587void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid,
bdcd8170
KV		 588 u16 listen_int, u16 beacon_int,
589 enum network_type net_type, u8 beacon_ie_len,
590 u8 assoc_req_len, u8 assoc_resp_len,
591 u8 *assoc_info)
592{
240d2799 593 struct ath6kl *ar = vif->ar;
59c98449 594
240d2799 595 ath6kl_cfg80211_connect_event(vif, channel, bssid,
bdcd8170
KV		 596 listen_int, beacon_int,
597 net_type, beacon_ie_len,
598 assoc_req_len, assoc_resp_len,
599 assoc_info);
600
8c8b65e3 601 memcpy(vif->bssid, bssid, sizeof(vif->bssid));
f74bac54 602 vif->bss_ch = channel;
bdcd8170 603
8f46fccd 604 if ((vif->nw_type == INFRA_NETWORK))
334234b5 605 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
8f46fccd 606 vif->listen_intvl_t, 0);
bdcd8170 607
240d2799 608 netif_wake_queue(vif->ndev);
bdcd8170
KV		 609
610 /* Update connect & link status atomically */
478ac027 611 spin_lock_bh(&vif->if_lock);
59c98449
VT		 612 set_bit(CONNECTED, &vif->flags);
613 clear_bit(CONNECT_PEND, &vif->flags);
240d2799 614 netif_carrier_on(vif->ndev);
478ac027 615 spin_unlock_bh(&vif->if_lock);
bdcd8170 616
1d2a4456 617 aggr_reset_state(vif->aggr_cntxt->aggr_conn);
cf5333d7 618 vif->reconnect_flag = 0;
bdcd8170 619
f5938f24 620 if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) {
bdcd8170
KV		 621 memset(ar->node_map, 0, sizeof(ar->node_map));
622 ar->node_num = 0;
623 ar->next_ep_id = ENDPOINT_2;
624 }
625
551185ca 626 if (!ar->usr_bss_filter) {
59c98449 627 set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
240d2799
VT		 628 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
629 CURRENT_BSS_FILTER, 0);
551185ca 630 }
bdcd8170
KV		 631}
632
240d2799 633void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast)
bdcd8170
KV		 634{
635 struct ath6kl_sta *sta;
240d2799 636 struct ath6kl *ar = vif->ar;
bdcd8170 637 u8 tsc[6];
240d2799 638
bdcd8170
KV		 639 /*
640 * For AP case, keyid will have aid of STA which sent pkt with
641 * MIC error. Use this aid to get MAC & send it to hostapd.
642 */
f5938f24 643 if (vif->nw_type == AP_NETWORK) {
bdcd8170
KV		 644 sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2));
645 if (!sta)
646 return;
647
648 ath6kl_dbg(ATH6KL_DBG_TRC,
649 "ap tkip mic error received from aid=%d\n", keyid);
650
651 memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */
240d2799 652 cfg80211_michael_mic_failure(vif->ndev, sta->mac,
bdcd8170
KV		 653 NL80211_KEYTYPE_PAIRWISE, keyid,
654 tsc, GFP_KERNEL);
655 } else
240d2799 656 ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast);
bdcd8170
KV		 657
658}
659
240d2799 660static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len)
bdcd8170
KV		 661{
662 struct wmi_target_stats *tgt_stats =
663 (struct wmi_target_stats *) ptr;
240d2799 664 struct ath6kl *ar = vif->ar;
b95907a7 665 struct target_stats *stats = &vif->target_stats;
bdcd8170 666 struct tkip_ccmp_stats *ccmp_stats;
bdcd8170
KV		 667 u8 ac;
668
669 if (len < sizeof(*tgt_stats))
670 return;
671
bdcd8170
KV		 672 ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n");
673
674 stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt);
675 stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte);
676 stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt);
677 stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte);
678 stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt);
679 stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte);
680 stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt);
681 stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte);
682 stats->tx_rts_success_cnt +=
683 le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt);
684
685 for (ac = 0; ac < WMM_NUM_AC; ac++)
686 stats->tx_pkt_per_ac[ac] +=
687 le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]);
688
689 stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err);
690 stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt);
691 stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt);
692 stats->tx_mult_retry_cnt +=
693 le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt);
694 stats->tx_rts_fail_cnt +=
695 le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt);
696 stats->tx_ucast_rate =
697 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate));
698
699 stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt);
700 stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte);
701 stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt);
702 stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte);
703 stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt);
704 stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte);
705 stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt);
706 stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte);
707 stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt);
708 stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err);
709 stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err);
710 stats->rx_key_cache_miss +=
711 le32_to_cpu(tgt_stats->stats.rx.key_cache_miss);
712 stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err);
713 stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame);
714 stats->rx_ucast_rate =
715 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate));
716
717 ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats;
718
719 stats->tkip_local_mic_fail +=
720 le32_to_cpu(ccmp_stats->tkip_local_mic_fail);
721 stats->tkip_cnter_measures_invoked +=
722 le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked);
723 stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err);
724
725 stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err);
726 stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays);
727
728 stats->pwr_save_fail_cnt +=
729 le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt);
730 stats->noise_floor_calib =
731 a_sle32_to_cpu(tgt_stats->noise_floor_calib);
732
733 stats->cs_bmiss_cnt +=
734 le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt);
735 stats->cs_low_rssi_cnt +=
736 le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt);
737 stats->cs_connect_cnt +=
738 le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt);
739 stats->cs_discon_cnt +=
740 le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt);
741
742 stats->cs_ave_beacon_rssi =
743 a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi);
744
745 stats->cs_last_roam_msec =
746 tgt_stats->cserv_stats.cs_last_roam_msec;
747 stats->cs_snr = tgt_stats->cserv_stats.cs_snr;
748 stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi);
749
750 stats->lq_val = le32_to_cpu(tgt_stats->lq_val);
751
752 stats->wow_pkt_dropped +=
753 le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped);
754 stats->wow_host_pkt_wakeups +=
755 tgt_stats->wow_stats.wow_host_pkt_wakeups;
756 stats->wow_host_evt_wakeups +=
757 tgt_stats->wow_stats.wow_host_evt_wakeups;
758 stats->wow_evt_discarded +=
759 le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded);
760
f0446ea9
RM		 761 stats->arp_received = le32_to_cpu(tgt_stats->arp_stats.arp_received);
762 stats->arp_replied = le32_to_cpu(tgt_stats->arp_stats.arp_replied);
763 stats->arp_matched = le32_to_cpu(tgt_stats->arp_stats.arp_matched);
764
b95907a7
VT		 765 if (test_bit(STATS_UPDATE_PEND, &vif->flags)) {
766 clear_bit(STATS_UPDATE_PEND, &vif->flags);
bdcd8170
KV		 767 wake_up(&ar->event_wq);
768 }
769}
770
771static void ath6kl_add_le32(__le32 *var, __le32 val)
772{
773 *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val));
774}
775
240d2799 776void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len)
bdcd8170
KV		 777{
778 struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr;
240d2799 779 struct ath6kl *ar = vif->ar;
bdcd8170
KV		 780 struct wmi_ap_mode_stat *ap = &ar->ap_stats;
781 struct wmi_per_sta_stat *st_ap, *st_p;
782 u8 ac;
783
f5938f24 784 if (vif->nw_type == AP_NETWORK) {
bdcd8170
KV		 785 if (len < sizeof(*p))
786 return;
787
788 for (ac = 0; ac < AP_MAX_NUM_STA; ac++) {
789 st_ap = &ap->sta[ac];
790 st_p = &p->sta[ac];
791
792 ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes);
793 ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts);
794 ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error);
795 ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard);
796 ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes);
797 ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts);
798 ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error);
799 ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard);
800 }
801
802 } else {
240d2799 803 ath6kl_update_target_stats(vif, ptr, len);
bdcd8170
KV		 804 }
805}
806
807void ath6kl_wakeup_event(void *dev)
808{
809 struct ath6kl *ar = (struct ath6kl *) dev;
810
811 wake_up(&ar->event_wq);
812}
813
814void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr)
815{
816 struct ath6kl *ar = (struct ath6kl *) devt;
817
818 ar->tx_pwr = tx_pwr;
819 wake_up(&ar->event_wq);
820}
821
240d2799 822void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid)
bdcd8170
KV		 823{
824 struct ath6kl_sta *conn;
825 struct sk_buff *skb;
826 bool psq_empty = false;
240d2799 827 struct ath6kl *ar = vif->ar;
d0ff7383 828 struct ath6kl_mgmt_buff *mgmt_buf;
bdcd8170
KV		 829
830 conn = ath6kl_find_sta_by_aid(ar, aid);
831
832 if (!conn)
833 return;
834 /*
835 * Send out a packet queued on ps queue. When the ps queue
836 * becomes empty update the PVB for this station.
837 */
838 spin_lock_bh(&conn->psq_lock);
d0ff7383 839 psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0);
bdcd8170
KV		 840 spin_unlock_bh(&conn->psq_lock);
841
842 if (psq_empty)
843 /* TODO: Send out a NULL data frame */
844 return;
845
846 spin_lock_bh(&conn->psq_lock);
d0ff7383
NG		 847 if (conn->mgmt_psq_len > 0) {
848 mgmt_buf = list_first_entry(&conn->mgmt_psq,
849 struct ath6kl_mgmt_buff, list);
850 list_del(&mgmt_buf->list);
851 conn->mgmt_psq_len--;
852 spin_unlock_bh(&conn->psq_lock);
853
854 conn->sta_flags |= STA_PS_POLLED;
855 ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx,
856 mgmt_buf->id, mgmt_buf->freq,
857 mgmt_buf->wait, mgmt_buf->buf,
858 mgmt_buf->len, mgmt_buf->no_cck);
859 conn->sta_flags &= ~STA_PS_POLLED;
860 kfree(mgmt_buf);
861 } else {
862 skb = skb_dequeue(&conn->psq);
863 spin_unlock_bh(&conn->psq_lock);
bdcd8170 864
d0ff7383
NG		 865 conn->sta_flags |= STA_PS_POLLED;
866 ath6kl_data_tx(skb, vif->ndev);
867 conn->sta_flags &= ~STA_PS_POLLED;
868 }
bdcd8170
KV		 869
870 spin_lock_bh(&conn->psq_lock);
d0ff7383 871 psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0);
bdcd8170
KV		 872 spin_unlock_bh(&conn->psq_lock);
873
874 if (psq_empty)
334234b5 875 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0);
bdcd8170
KV		 876}
877
240d2799 878void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif)
bdcd8170
KV		 879{
880 bool mcastq_empty = false;
881 struct sk_buff *skb;
240d2799 882 struct ath6kl *ar = vif->ar;
bdcd8170
KV		 883
884 /*
885 * If there are no associated STAs, ignore the DTIM expiry event.
886 * There can be potential race conditions where the last associated
887 * STA may disconnect & before the host could clear the 'Indicate
888 * DTIM' request to the firmware, the firmware would have just
889 * indicated a DTIM expiry event. The race is between 'clear DTIM
890 * expiry cmd' going from the host to the firmware & the DTIM
891 * expiry event happening from the firmware to the host.
892 */
893 if (!ar->sta_list_index)
894 return;
895
896 spin_lock_bh(&ar->mcastpsq_lock);
897 mcastq_empty = skb_queue_empty(&ar->mcastpsq);
898 spin_unlock_bh(&ar->mcastpsq_lock);
899
900 if (mcastq_empty)
901 return;
902
903 /* set the STA flag to dtim_expired for the frame to go out */
59c98449 904 set_bit(DTIM_EXPIRED, &vif->flags);
bdcd8170
KV		 905
906 spin_lock_bh(&ar->mcastpsq_lock);
907 while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) {
908 spin_unlock_bh(&ar->mcastpsq_lock);
909
240d2799 910 ath6kl_data_tx(skb, vif->ndev);
bdcd8170
KV		 911
912 spin_lock_bh(&ar->mcastpsq_lock);
913 }
914 spin_unlock_bh(&ar->mcastpsq_lock);
915
59c98449 916 clear_bit(DTIM_EXPIRED, &vif->flags);
bdcd8170
KV		 917
918 /* clear the LSB of the BitMapCtl field of the TIM IE */
334234b5 919 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0);
bdcd8170
KV		 920}
921
240d2799 922void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid,
bdcd8170
KV		 923 u8 assoc_resp_len, u8 *assoc_info,
924 u16 prot_reason_status)
925{
240d2799 926 struct ath6kl *ar = vif->ar;
59c98449 927
f5938f24 928 if (vif->nw_type == AP_NETWORK) {
bdcd8170
KV		 929 if (!ath6kl_remove_sta(ar, bssid, prot_reason_status))
930 return;
931
932 /* if no more associated STAs, empty the mcast PS q */
933 if (ar->sta_list_index == 0) {
934 spin_lock_bh(&ar->mcastpsq_lock);
935 skb_queue_purge(&ar->mcastpsq);
936 spin_unlock_bh(&ar->mcastpsq_lock);
937
938 /* clear the LSB of the TIM IE's BitMapCtl field */
939 if (test_bit(WMI_READY, &ar->flag))
334234b5
VT		 940 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
941 MCAST_AID, 0);
bdcd8170
KV		 942 }
943
944 if (!is_broadcast_ether_addr(bssid)) {
945 /* send event to application */
240d2799 946 cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL);
bdcd8170
KV		 947 }
948
240d2799 949 if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) {
6f2a73f9 950 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
59c98449 951 clear_bit(CONNECTED, &vif->flags);
151411e8 952 }
bdcd8170
KV		 953 return;
954 }
955
240d2799 956 ath6kl_cfg80211_disconnect_event(vif, reason, bssid,
96f1fadc
KV		 957 assoc_resp_len, assoc_info,
958 prot_reason_status);
bdcd8170 959
1d2a4456 960 aggr_reset_state(vif->aggr_cntxt->aggr_conn);
bdcd8170 961
de3ad713 962 del_timer(&vif->disconnect_timer);
bdcd8170 963
d23ace77 964 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "disconnect reason is %d\n", reason);
bdcd8170
KV		 965
966 /*
967 * If the event is due to disconnect cmd from the host, only they
968 * the target would stop trying to connect. Under any other
969 * condition, target would keep trying to connect.
970 */
971 if (reason == DISCONNECT_CMD) {
972 if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag))
240d2799
VT		 973 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
974 NONE_BSS_FILTER, 0);
bdcd8170 975 } else {
59c98449 976 set_bit(CONNECT_PEND, &vif->flags);
bdcd8170 977 if (((reason == ASSOC_FAILED) &&
96f1fadc 978 (prot_reason_status == 0x11)) ||
ddc3d77c
KV		 979 ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0) &&
980 (vif->reconnect_flag == 1))) {
59c98449 981 set_bit(CONNECTED, &vif->flags);
bdcd8170
KV		 982 return;
983 }
984 }
985
bdcd8170 986 /* update connect & link status atomically */
478ac027 987 spin_lock_bh(&vif->if_lock);
59c98449 988 clear_bit(CONNECTED, &vif->flags);
240d2799 989 netif_carrier_off(vif->ndev);
478ac027 990 spin_unlock_bh(&vif->if_lock);
bdcd8170 991
cf5333d7
VT		 992 if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1))
993 vif->reconnect_flag = 0;
bdcd8170
KV		 994
995 if (reason != CSERV_DISCONNECT)
996 ar->user_key_ctrl = 0;
997
240d2799 998 netif_stop_queue(vif->ndev);
8c8b65e3 999 memset(vif->bssid, 0, sizeof(vif->bssid));
f74bac54 1000 vif->bss_ch = 0;
bdcd8170
KV		 1001
1002 ath6kl_tx_data_cleanup(ar);
1003}
1004
990bd915
VT		 1005struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar)
1006{
1007 struct ath6kl_vif *vif;
1008
11f6e40d 1009 spin_lock_bh(&ar->list_lock);
990bd915 1010 if (list_empty(&ar->vif_list)) {
11f6e40d 1011 spin_unlock_bh(&ar->list_lock);
990bd915
VT		 1012 return NULL;
1013 }
1014
1015 vif = list_first_entry(&ar->vif_list, struct ath6kl_vif, list);
1016
11f6e40d 1017 spin_unlock_bh(&ar->list_lock);
990bd915
VT		 1018
1019 return vif;
1020}
1021
bdcd8170
KV		 1022static int ath6kl_open(struct net_device *dev)
1023{
59c98449 1024 struct ath6kl_vif *vif = netdev_priv(dev);
bdcd8170 1025
59c98449 1026 set_bit(WLAN_ENABLED, &vif->flags);
bdcd8170 1027
59c98449 1028 if (test_bit(CONNECTED, &vif->flags)) {
bdcd8170
KV		 1029 netif_carrier_on(dev);
1030 netif_wake_queue(dev);
1031 } else
1032 netif_carrier_off(dev);
1033
bdcd8170
KV		 1034 return 0;
1035}
1036
1037static int ath6kl_close(struct net_device *dev)
1038{
59c98449 1039 struct ath6kl_vif *vif = netdev_priv(dev);
bdcd8170
KV		 1040
1041 netif_stop_queue(dev);
1042
7125f01d 1043 ath6kl_cfg80211_stop(vif);
bdcd8170 1044
68469341
KV		 1045 clear_bit(WLAN_ENABLED, &vif->flags);
1046
bdcd8170
KV		 1047 return 0;
1048}
1049
1050static struct net_device_stats *ath6kl_get_stats(struct net_device *dev)
1051{
b95907a7 1052 struct ath6kl_vif *vif = netdev_priv(dev);
bdcd8170 1053
b95907a7 1054 return &vif->net_stats;
bdcd8170
KV		 1055}
1056
d6f80261
KV		 1057static int ath6kl_set_features(struct net_device *dev,
1058 netdev_features_t features)
bc48ad31
RP		 1059{
1060 struct ath6kl_vif *vif = netdev_priv(dev);
1061 struct ath6kl *ar = vif->ar;
1062 int err = 0;
1063
1064 if ((features & NETIF_F_RXCSUM) &&
1065 (ar->rx_meta_ver != WMI_META_VERSION_2)) {
1066 ar->rx_meta_ver = WMI_META_VERSION_2;
1067 err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
1068 vif->fw_vif_idx,
1069 ar->rx_meta_ver, 0, 0);
1070 if (err) {
1071 dev->features = features & ~NETIF_F_RXCSUM;
1072 return err;
1073 }
1074 } else if (!(features & NETIF_F_RXCSUM) &&
1075 (ar->rx_meta_ver == WMI_META_VERSION_2)) {
1076 ar->rx_meta_ver = 0;
1077 err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
1078 vif->fw_vif_idx,
1079 ar->rx_meta_ver, 0, 0);
1080 if (err) {
1081 dev->features = features | NETIF_F_RXCSUM;
1082 return err;
1083 }
1084
1085 }
1086
1087 return err;
1088}
1089
80abaf9b
VT		 1090static void ath6kl_set_multicast_list(struct net_device *ndev)
1091{
1092 struct ath6kl_vif *vif = netdev_priv(ndev);
1093 bool mc_all_on = false, mc_all_off = false;
1094 int mc_count = netdev_mc_count(ndev);
1095 struct netdev_hw_addr *ha;
1096 bool found;
1097 struct ath6kl_mc_filter *mc_filter, *tmp;
1098 struct list_head mc_filter_new;
1099 int ret;
1100
1101 if (!test_bit(WMI_READY, &vif->ar->flag) ||
1102 !test_bit(WLAN_ENABLED, &vif->flags))
1103 return;
1104
1105 mc_all_on = !!(ndev->flags & IFF_PROMISC) ||
1106 !!(ndev->flags & IFF_ALLMULTI) ||
1107 !!(mc_count > ATH6K_MAX_MC_FILTERS_PER_LIST);
1108
1109 mc_all_off = !(ndev->flags & IFF_MULTICAST) || mc_count == 0;
1110
1111 if (mc_all_on || mc_all_off) {
1112 /* Enable/disable all multicast */
1113 ath6kl_dbg(ATH6KL_DBG_TRC, "%s multicast filter\n",
96f1fadc 1114 mc_all_on ? "enabling" : "disabling");
80abaf9b
VT		 1115 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, vif->fw_vif_idx,
1116 mc_all_on);
1117 if (ret)
1118 ath6kl_warn("Failed to %s multicast receive\n",
1119 mc_all_on ? "enable" : "disable");
1120 return;
1121 }
1122
1123 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) {
1124 found = false;
1125 netdev_for_each_mc_addr(ha, ndev) {
1126 if (memcmp(ha->addr, mc_filter->hw_addr,
96f1fadc 1127 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) {
80abaf9b
VT		 1128 found = true;
1129 break;
1130 }
1131 }
1132
1133 if (!found) {
1134 /*
1135 * Delete the filter which was previously set
1136 * but not in the new request.
1137 */
1138 ath6kl_dbg(ATH6KL_DBG_TRC,
1139 "Removing %pM from multicast filter\n",
1140 mc_filter->hw_addr);
1141 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi,
1142 vif->fw_vif_idx, mc_filter->hw_addr,
1143 false);
1144 if (ret) {
1145 ath6kl_warn("Failed to remove multicast filter:%pM\n",
96f1fadc 1146 mc_filter->hw_addr);
80abaf9b
VT		 1147 return;
1148 }
1149
1150 list_del(&mc_filter->list);
1151 kfree(mc_filter);
1152 }
1153 }
1154
1155 INIT_LIST_HEAD(&mc_filter_new);
1156
1157 netdev_for_each_mc_addr(ha, ndev) {
1158 found = false;
1159 list_for_each_entry(mc_filter, &vif->mc_filter, list) {
1160 if (memcmp(ha->addr, mc_filter->hw_addr,
96f1fadc 1161 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) {
80abaf9b
VT		 1162 found = true;
1163 break;
1164 }
1165 }
1166
1167 if (!found) {
1168 mc_filter = kzalloc(sizeof(struct ath6kl_mc_filter),
1169 GFP_ATOMIC);
1170 if (!mc_filter) {
1171 WARN_ON(1);
1172 goto out;
1173 }
1174
1175 memcpy(mc_filter->hw_addr, ha->addr,
1176 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE);
1177 /* Set the multicast filter */
1178 ath6kl_dbg(ATH6KL_DBG_TRC,
1179 "Adding %pM to multicast filter list\n",
1180 mc_filter->hw_addr);
1181 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi,
1182 vif->fw_vif_idx, mc_filter->hw_addr,
1183 true);
1184 if (ret) {
1185 ath6kl_warn("Failed to add multicast filter :%pM\n",
96f1fadc 1186 mc_filter->hw_addr);
80abaf9b
VT		 1187 kfree(mc_filter);
1188 goto out;
1189 }
1190
1191 list_add_tail(&mc_filter->list, &mc_filter_new);
1192 }
1193 }
1194
1195out:
1196 list_splice_tail(&mc_filter_new, &vif->mc_filter);
1197}
1198
4269a930 1199static const struct net_device_ops ath6kl_netdev_ops = {
bdcd8170
KV		 1200 .ndo_open = ath6kl_open,
1201 .ndo_stop = ath6kl_close,
1202 .ndo_start_xmit = ath6kl_data_tx,
1203 .ndo_get_stats = ath6kl_get_stats,
bc48ad31 1204 .ndo_set_features = ath6kl_set_features,
80abaf9b 1205 .ndo_set_rx_mode = ath6kl_set_multicast_list,
bdcd8170
KV		 1206};
1207
1208void init_netdev(struct net_device *dev)
1209{
1210 dev->netdev_ops = &ath6kl_netdev_ops;
27929723 1211 dev->destructor = free_netdev;
bdcd8170
KV		 1212 dev->watchdog_timeo = ATH6KL_TX_TIMEOUT;
1213
1214 dev->needed_headroom = ETH_HLEN;
1215 dev->needed_headroom += sizeof(struct ath6kl_llc_snap_hdr) +
1216 sizeof(struct wmi_data_hdr) + HTC_HDR_LENGTH
1df94a85 1217 + WMI_MAX_TX_META_SZ + ATH6KL_HTC_ALIGN_BYTES;
bdcd8170 1218
4705b703
VT		 1219 dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM;
1220
bdcd8170
KV		 1221 return;
1222}
Linux kernel - Deliverables
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