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ath6kl: Move key information to vif structure
[deliverable/linux.git] / drivers / net / wireless / ath / ath6kl / main.c
CommitLineData
bdcd8170
KV		 1/*
2 * Copyright (c) 2004-2011 Atheros Communications Inc.
3 *
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.
7 *
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.
15 */
16
17#include "core.h"
18#include "hif-ops.h"
19#include "cfg80211.h"
20#include "target.h"
21#include "debug.h"
22
23struct ath6kl_sta *ath6kl_find_sta(struct ath6kl *ar, u8 *node_addr)
24{
f5938f24
VT		 25 /* TODO: Findout vif */
26 struct ath6kl_vif *vif = ar->vif;
bdcd8170
KV		 27 struct ath6kl_sta *conn = NULL;
28 u8 i, max_conn;
29
f5938f24 30 max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0;
bdcd8170
KV		 31
32 for (i = 0; i < max_conn; i++) {
33 if (memcmp(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) {
34 conn = &ar->sta_list[i];
35 break;
36 }
37 }
38
39 return conn;
40}
41
42struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid)
43{
44 struct ath6kl_sta *conn = NULL;
45 u8 ctr;
46
47 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) {
48 if (ar->sta_list[ctr].aid == aid) {
49 conn = &ar->sta_list[ctr];
50 break;
51 }
52 }
53 return conn;
54}
55
56static void ath6kl_add_new_sta(struct ath6kl *ar, u8 *mac, u16 aid, u8 *wpaie,
57 u8 ielen, u8 keymgmt, u8 ucipher, u8 auth)
58{
59 struct ath6kl_sta *sta;
60 u8 free_slot;
61
62 free_slot = aid - 1;
63
64 sta = &ar->sta_list[free_slot];
65 memcpy(sta->mac, mac, ETH_ALEN);
3c774bba
JM		 66 if (ielen <= ATH6KL_MAX_IE)
67 memcpy(sta->wpa_ie, wpaie, ielen);
bdcd8170
KV		 68 sta->aid = aid;
69 sta->keymgmt = keymgmt;
70 sta->ucipher = ucipher;
71 sta->auth = auth;
72
73 ar->sta_list_index = ar->sta_list_index | (1 << free_slot);
74 ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid);
75}
76
77static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i)
78{
79 struct ath6kl_sta *sta = &ar->sta_list[i];
80
81 /* empty the queued pkts in the PS queue if any */
82 spin_lock_bh(&sta->psq_lock);
83 skb_queue_purge(&sta->psq);
84 spin_unlock_bh(&sta->psq_lock);
85
86 memset(&ar->ap_stats.sta[sta->aid - 1], 0,
87 sizeof(struct wmi_per_sta_stat));
88 memset(sta->mac, 0, ETH_ALEN);
89 memset(sta->wpa_ie, 0, ATH6KL_MAX_IE);
90 sta->aid = 0;
91 sta->sta_flags = 0;
92
93 ar->sta_list_index = ar->sta_list_index & ~(1 << i);
94
95}
96
97static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason)
98{
99 u8 i, removed = 0;
100
101 if (is_zero_ether_addr(mac))
102 return removed;
103
104 if (is_broadcast_ether_addr(mac)) {
105 ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n");
106
107 for (i = 0; i < AP_MAX_NUM_STA; i++) {
108 if (!is_zero_ether_addr(ar->sta_list[i].mac)) {
109 ath6kl_sta_cleanup(ar, i);
110 removed = 1;
111 }
112 }
113 } else {
114 for (i = 0; i < AP_MAX_NUM_STA; i++) {
115 if (memcmp(ar->sta_list[i].mac, mac, ETH_ALEN) == 0) {
116 ath6kl_dbg(ATH6KL_DBG_TRC,
117 "deleting station %pM aid=%d reason=%d\n",
118 mac, ar->sta_list[i].aid, reason);
119 ath6kl_sta_cleanup(ar, i);
120 removed = 1;
121 break;
122 }
123 }
124 }
125
126 return removed;
127}
128
129enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac)
130{
131 struct ath6kl *ar = devt;
132 return ar->ac2ep_map[ac];
133}
134
135struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar)
136{
137 struct ath6kl_cookie *cookie;
138
139 cookie = ar->cookie_list;
140 if (cookie != NULL) {
141 ar->cookie_list = cookie->arc_list_next;
142 ar->cookie_count--;
143 }
144
145 return cookie;
146}
147
148void ath6kl_cookie_init(struct ath6kl *ar)
149{
150 u32 i;
151
152 ar->cookie_list = NULL;
153 ar->cookie_count = 0;
154
155 memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem));
156
157 for (i = 0; i < MAX_COOKIE_NUM; i++)
158 ath6kl_free_cookie(ar, &ar->cookie_mem[i]);
159}
160
161void ath6kl_cookie_cleanup(struct ath6kl *ar)
162{
163 ar->cookie_list = NULL;
164 ar->cookie_count = 0;
165}
166
167void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie)
168{
169 /* Insert first */
170
171 if (!ar || !cookie)
172 return;
173
174 cookie->arc_list_next = ar->cookie_list;
175 ar->cookie_list = cookie;
176 ar->cookie_count++;
177}
178
179/* set the window address register (using 4-byte register access ). */
180static int ath6kl_set_addrwin_reg(struct ath6kl *ar, u32 reg_addr, u32 addr)
181{
182 int status;
bdcd8170 183 s32 i;
b142b914 184 __le32 addr_val;
bdcd8170
KV		 185
186 /*
187 * Write bytes 1,2,3 of the register to set the upper address bytes,
188 * the LSB is written last to initiate the access cycle
189 */
190
191 for (i = 1; i <= 3; i++) {
192 /*
193 * Fill the buffer with the address byte value we want to
b142b914
VT		 194 * hit 4 times. No need to worry about endianness as the
195 * same byte is copied to all four bytes of addr_val at
196 * any time.
bdcd8170 197 */
b142b914 198 memset((u8 *)&addr_val, ((u8 *)&addr)[i], 4);
bdcd8170
KV		 199
200 /*
201 * Hit each byte of the register address with a 4-byte
202 * write operation to the same address, this is a harmless
203 * operation.
204 */
b142b914 205 status = hif_read_write_sync(ar, reg_addr + i, (u8 *)&addr_val,
bdcd8170
KV		 206 4, HIF_WR_SYNC_BYTE_FIX);
207 if (status)
208 break;
209 }
210
211 if (status) {
212 ath6kl_err("failed to write initial bytes of 0x%x to window reg: 0x%X\n",
213 addr, reg_addr);
214 return status;
215 }
216
217 /*
218 * Write the address register again, this time write the whole
219 * 4-byte value. The effect here is that the LSB write causes the
220 * cycle to start, the extra 3 byte write to bytes 1,2,3 has no
221 * effect since we are writing the same values again
222 */
b142b914
VT		 223 addr_val = cpu_to_le32(addr);
224 status = hif_read_write_sync(ar, reg_addr,
225 (u8 *)&(addr_val),
bdcd8170
KV		 226 4, HIF_WR_SYNC_BYTE_INC);
227
228 if (status) {
229 ath6kl_err("failed to write 0x%x to window reg: 0x%X\n",
230 addr, reg_addr);
231 return status;
232 }
233
234 return 0;
235}
236
237/*
addb44be
KV		 238 * Read from the hardware through its diagnostic window. No cooperation
239 * from the firmware is required for this.
bdcd8170 240 */
addb44be 241int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value)
bdcd8170 242{
addb44be 243 int ret;
bdcd8170
KV		 244
245 /* set window register to start read cycle */
addb44be
KV		 246 ret = ath6kl_set_addrwin_reg(ar, WINDOW_READ_ADDR_ADDRESS, address);
247 if (ret)
248 return ret;
bdcd8170
KV		 249
250 /* read the data */
addb44be
KV		 251 ret = hif_read_write_sync(ar, WINDOW_DATA_ADDRESS, (u8 *) value,
252 sizeof(*value), HIF_RD_SYNC_BYTE_INC);
253 if (ret) {
254 ath6kl_warn("failed to read32 through diagnose window: %d\n",
255 ret);
256 return ret;
bdcd8170
KV		 257 }
258
addb44be 259 return 0;
bdcd8170
KV		 260}
261
bdcd8170
KV		 262/*
263 * Write to the ATH6KL through its diagnostic window. No cooperation from
264 * the Target is required for this.
265 */
f9ea0753 266int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value)
bdcd8170 267{
addb44be 268 int ret;
bdcd8170
KV		 269
270 /* set write data */
addb44be
KV		 271 ret = hif_read_write_sync(ar, WINDOW_DATA_ADDRESS, (u8 *) &value,
272 sizeof(value), HIF_WR_SYNC_BYTE_INC);
273 if (ret) {
274 ath6kl_err("failed to write 0x%x during diagnose window to 0x%d\n",
275 address, value);
276 return ret;
bdcd8170
KV		 277 }
278
279 /* set window register, which starts the write cycle */
280 return ath6kl_set_addrwin_reg(ar, WINDOW_WRITE_ADDR_ADDRESS,
addb44be 281 address);
bdcd8170
KV		 282}
283
addb44be 284int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length)
bdcd8170 285{
addb44be
KV		 286 u32 count, *buf = data;
287 int ret;
bdcd8170 288
addb44be
KV		 289 if (WARN_ON(length % 4))
290 return -EINVAL;
291
292 for (count = 0; count < length / 4; count++, address += 4) {
293 ret = ath6kl_diag_read32(ar, address, &buf[count]);
294 if (ret)
295 return ret;
bdcd8170
KV		 296 }
297
addb44be
KV		 298 return 0;
299}
300
301int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length)
302{
f9ea0753
VT		 303 u32 count;
304 __le32 *buf = data;
addb44be
KV		 305 int ret;
306
307 if (WARN_ON(length % 4))
308 return -EINVAL;
309
310 for (count = 0; count < length / 4; count++, address += 4) {
311 ret = ath6kl_diag_write32(ar, address, buf[count]);
312 if (ret)
313 return ret;
314 }
315
316 return 0;
bdcd8170
KV		 317}
318
bc07ddb2
KV		 319int ath6kl_read_fwlogs(struct ath6kl *ar)
320{
321 struct ath6kl_dbglog_hdr debug_hdr;
322 struct ath6kl_dbglog_buf debug_buf;
323 u32 address, length, dropped, firstbuf, debug_hdr_addr;
324 int ret = 0, loop;
325 u8 *buf;
326
327 buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL);
328 if (!buf)
329 return -ENOMEM;
330
331 address = TARG_VTOP(ar->target_type,
332 ath6kl_get_hi_item_addr(ar,
333 HI_ITEM(hi_dbglog_hdr)));
334
335 ret = ath6kl_diag_read32(ar, address, &debug_hdr_addr);
336 if (ret)
337 goto out;
338
339 /* Get the contents of the ring buffer */
340 if (debug_hdr_addr == 0) {
341 ath6kl_warn("Invalid address for debug_hdr_addr\n");
342 ret = -EINVAL;
343 goto out;
344 }
345
346 address = TARG_VTOP(ar->target_type, debug_hdr_addr);
347 ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr));
348
349 address = TARG_VTOP(ar->target_type,
350 le32_to_cpu(debug_hdr.dbuf_addr));
351 firstbuf = address;
352 dropped = le32_to_cpu(debug_hdr.dropped);
353 ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf));
354
355 loop = 100;
356
357 do {
358 address = TARG_VTOP(ar->target_type,
359 le32_to_cpu(debug_buf.buffer_addr));
360 length = le32_to_cpu(debug_buf.length);
361
362 if (length != 0 && (le32_to_cpu(debug_buf.length) <=
363 le32_to_cpu(debug_buf.bufsize))) {
364 length = ALIGN(length, 4);
365
366 ret = ath6kl_diag_read(ar, address,
367 buf, length);
368 if (ret)
369 goto out;
370
371 ath6kl_debug_fwlog_event(ar, buf, length);
372 }
373
374 address = TARG_VTOP(ar->target_type,
375 le32_to_cpu(debug_buf.next));
376 ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf));
377 if (ret)
378 goto out;
379
380 loop--;
381
382 if (WARN_ON(loop == 0)) {
383 ret = -ETIMEDOUT;
384 goto out;
385 }
386 } while (address != firstbuf);
387
388out:
389 kfree(buf);
390
391 return ret;
392}
393
31024d99
KF		 394/* FIXME: move to a better place, target.h? */
395#define AR6003_RESET_CONTROL_ADDRESS 0x00004000
396#define AR6004_RESET_CONTROL_ADDRESS 0x00004000
397
bdcd8170
KV		 398static void ath6kl_reset_device(struct ath6kl *ar, u32 target_type,
399 bool wait_fot_compltn, bool cold_reset)
400{
401 int status = 0;
402 u32 address;
f9ea0753 403 __le32 data;
bdcd8170 404
31024d99
KF		 405 if (target_type != TARGET_TYPE_AR6003 &&
406 target_type != TARGET_TYPE_AR6004)
bdcd8170
KV		 407 return;
408
f9ea0753
VT		 409 data = cold_reset ? cpu_to_le32(RESET_CONTROL_COLD_RST) :
410 cpu_to_le32(RESET_CONTROL_MBOX_RST);
bdcd8170 411
31024d99
KF		 412 switch (target_type) {
413 case TARGET_TYPE_AR6003:
414 address = AR6003_RESET_CONTROL_ADDRESS;
415 break;
416 case TARGET_TYPE_AR6004:
417 address = AR6004_RESET_CONTROL_ADDRESS;
418 break;
419 default:
420 address = AR6003_RESET_CONTROL_ADDRESS;
421 break;
422 }
423
addb44be 424 status = ath6kl_diag_write32(ar, address, data);
bdcd8170
KV		 425
426 if (status)
427 ath6kl_err("failed to reset target\n");
428}
429
430void ath6kl_stop_endpoint(struct net_device *dev, bool keep_profile,
431 bool get_dbglogs)
432{
433 struct ath6kl *ar = ath6kl_priv(dev);
59c98449 434 struct ath6kl_vif *vif = netdev_priv(dev);
bdcd8170
KV		 435 static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
436 bool discon_issued;
437
438 netif_stop_queue(dev);
439
440 /* disable the target and the interrupts associated with it */
441 if (test_bit(WMI_READY, &ar->flag)) {
59c98449
VT		 442 discon_issued = (test_bit(CONNECTED, &vif->flags) ||
443 test_bit(CONNECT_PEND, &vif->flags));
bdcd8170
KV		 444 ath6kl_disconnect(ar);
445 if (!keep_profile)
446 ath6kl_init_profile_info(ar);
447
448 del_timer(&ar->disconnect_timer);
449
450 clear_bit(WMI_READY, &ar->flag);
451 ath6kl_wmi_shutdown(ar->wmi);
452 clear_bit(WMI_ENABLED, &ar->flag);
453 ar->wmi = NULL;
454
455 /*
456 * After wmi_shudown all WMI events will be dropped. We
457 * need to cleanup the buffers allocated in AP mode and
458 * give disconnect notification to stack, which usually
459 * happens in the disconnect_event. Simulate the disconnect
460 * event by calling the function directly. Sometimes
461 * disconnect_event will be received when the debug logs
462 * are collected.
463 */
464 if (discon_issued)
465 ath6kl_disconnect_event(ar, DISCONNECT_CMD,
f5938f24 466 (vif->nw_type & AP_NETWORK) ?
8c8b65e3 467 bcast_mac : vif->bssid,
bdcd8170
KV		 468 0, NULL, 0);
469
470 ar->user_key_ctrl = 0;
471
472 } else {
473 ath6kl_dbg(ATH6KL_DBG_TRC,
474 "%s: wmi is not ready 0x%p 0x%p\n",
475 __func__, ar, ar->wmi);
476
477 /* Shut down WMI if we have started it */
478 if (test_bit(WMI_ENABLED, &ar->flag)) {
479 ath6kl_dbg(ATH6KL_DBG_TRC,
480 "%s: shut down wmi\n", __func__);
481 ath6kl_wmi_shutdown(ar->wmi);
482 clear_bit(WMI_ENABLED, &ar->flag);
483 ar->wmi = NULL;
484 }
485 }
486
487 if (ar->htc_target) {
488 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: shut down htc\n", __func__);
ad226ec2 489 ath6kl_htc_stop(ar->htc_target);
bdcd8170
KV		 490 }
491
492 /*
493 * Try to reset the device if we can. The driver may have been
494 * configure NOT to reset the target during a debug session.
495 */
496 ath6kl_dbg(ATH6KL_DBG_TRC,
497 "attempting to reset target on instance destroy\n");
498 ath6kl_reset_device(ar, ar->target_type, true, true);
499}
500
501static void ath6kl_install_static_wep_keys(struct ath6kl *ar)
502{
3450334f
VT		 503 /* TODO: Findout vif */
504 struct ath6kl_vif *vif = ar->vif;
bdcd8170
KV		 505 u8 index;
506 u8 keyusage;
507
508 for (index = WMI_MIN_KEY_INDEX; index <= WMI_MAX_KEY_INDEX; index++) {
6f2a73f9 509 if (vif->wep_key_list[index].key_len) {
bdcd8170 510 keyusage = GROUP_USAGE;
3450334f 511 if (index == vif->def_txkey_index)
bdcd8170
KV		 512 keyusage |= TX_USAGE;
513
514 ath6kl_wmi_addkey_cmd(ar->wmi,
515 index,
516 WEP_CRYPT,
517 keyusage,
6f2a73f9 518 vif->wep_key_list[index].key_len,
bdcd8170 519 NULL,
6f2a73f9 520 vif->wep_key_list[index].key,
bdcd8170
KV		 521 KEY_OP_INIT_VAL, NULL,
522 NO_SYNC_WMIFLAG);
523 }
524 }
525}
526
572e27c0 527void ath6kl_connect_ap_mode_bss(struct ath6kl *ar, u16 channel)
bdcd8170 528{
bdcd8170 529 struct ath6kl_req_key *ik;
9a5b1318
JM		 530 int res;
531 u8 key_rsc[ATH6KL_KEY_SEQ_LEN];
59c98449
VT		 532 /* TODO: Pass vif instead of taking it from ar */
533 struct ath6kl_vif *vif = ar->vif;
bdcd8170 534
572e27c0 535 ik = &ar->ap_mode_bkey;
bdcd8170 536
572e27c0 537 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel);
9a5b1318 538
3450334f 539 switch (vif->auth_mode) {
572e27c0 540 case NONE_AUTH:
3450334f 541 if (vif->prwise_crypto == WEP_CRYPT)
572e27c0
JM		 542 ath6kl_install_static_wep_keys(ar);
543 break;
544 case WPA_PSK_AUTH:
545 case WPA2_PSK_AUTH:
546 case (WPA_PSK_AUTH | WPA2_PSK_AUTH):
547 if (!ik->valid)
bdcd8170 548 break;
9a5b1318 549
572e27c0
JM		 550 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed addkey for "
551 "the initial group key for AP mode\n");
552 memset(key_rsc, 0, sizeof(key_rsc));
553 res = ath6kl_wmi_addkey_cmd(
554 ar->wmi, ik->key_index, ik->key_type,
555 GROUP_USAGE, ik->key_len, key_rsc, ik->key,
556 KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG);
557 if (res) {
558 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed "
559 "addkey failed: %d\n", res);
bdcd8170 560 }
572e27c0 561 break;
bdcd8170
KV		 562 }
563
572e27c0 564 ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0);
59c98449 565 set_bit(CONNECTED, &vif->flags);
572e27c0
JM		 566 netif_carrier_on(ar->net_dev);
567}
568
569void ath6kl_connect_ap_mode_sta(struct ath6kl *ar, u16 aid, u8 *mac_addr,
570 u8 keymgmt, u8 ucipher, u8 auth,
571 u8 assoc_req_len, u8 *assoc_info)
572{
573 u8 *ies = NULL, *wpa_ie = NULL, *pos;
574 size_t ies_len = 0;
575 struct station_info sinfo;
576
577 ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid);
bdcd8170 578
3c774bba
JM		 579 if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) {
580 struct ieee80211_mgmt *mgmt =
581 (struct ieee80211_mgmt *) assoc_info;
582 if (ieee80211_is_assoc_req(mgmt->frame_control) &&
583 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) +
584 sizeof(mgmt->u.assoc_req)) {
585 ies = mgmt->u.assoc_req.variable;
586 ies_len = assoc_info + assoc_req_len - ies;
587 } else if (ieee80211_is_reassoc_req(mgmt->frame_control) &&
588 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr)
589 + sizeof(mgmt->u.reassoc_req)) {
590 ies = mgmt->u.reassoc_req.variable;
591 ies_len = assoc_info + assoc_req_len - ies;
592 }
593 }
594
595 pos = ies;
596 while (pos && pos + 1 < ies + ies_len) {
597 if (pos + 2 + pos[1] > ies + ies_len)
598 break;
599 if (pos[0] == WLAN_EID_RSN)
600 wpa_ie = pos; /* RSN IE */
601 else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
602 pos[1] >= 4 &&
603 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) {
604 if (pos[5] == 0x01)
605 wpa_ie = pos; /* WPA IE */
606 else if (pos[5] == 0x04) {
607 wpa_ie = pos; /* WPS IE */
608 break; /* overrides WPA/RSN IE */
609 }
610 }
611 pos += 2 + pos[1];
612 }
613
572e27c0 614 ath6kl_add_new_sta(ar, mac_addr, aid, wpa_ie,
3c774bba 615 wpa_ie ? 2 + wpa_ie[1] : 0,
572e27c0 616 keymgmt, ucipher, auth);
bdcd8170
KV		 617
618 /* send event to application */
619 memset(&sinfo, 0, sizeof(sinfo));
620
621 /* TODO: sinfo.generation */
3c774bba
JM		 622
623 sinfo.assoc_req_ies = ies;
624 sinfo.assoc_req_ies_len = ies_len;
625 sinfo.filled |= STATION_INFO_ASSOC_REQ_IES;
626
572e27c0 627 cfg80211_new_sta(ar->net_dev, mac_addr, &sinfo, GFP_KERNEL);
bdcd8170
KV		 628
629 netif_wake_queue(ar->net_dev);
bdcd8170
KV		 630}
631
632/* Functions for Tx credit handling */
633void ath6k_credit_init(struct htc_credit_state_info *cred_info,
634 struct list_head *ep_list,
635 int tot_credits)
636{
637 struct htc_endpoint_credit_dist *cur_ep_dist;
638 int count;
639
640 cred_info->cur_free_credits = tot_credits;
641 cred_info->total_avail_credits = tot_credits;
642
643 list_for_each_entry(cur_ep_dist, ep_list, list) {
644 if (cur_ep_dist->endpoint == ENDPOINT_0)
645 continue;
646
647 cur_ep_dist->cred_min = cur_ep_dist->cred_per_msg;
648
649 if (tot_credits > 4)
650 if ((cur_ep_dist->svc_id == WMI_DATA_BK_SVC) ||
651 (cur_ep_dist->svc_id == WMI_DATA_BE_SVC)) {
652 ath6kl_deposit_credit_to_ep(cred_info,
653 cur_ep_dist,
654 cur_ep_dist->cred_min);
655 cur_ep_dist->dist_flags |= HTC_EP_ACTIVE;
656 }
657
658 if (cur_ep_dist->svc_id == WMI_CONTROL_SVC) {
659 ath6kl_deposit_credit_to_ep(cred_info, cur_ep_dist,
660 cur_ep_dist->cred_min);
661 /*
662 * Control service is always marked active, it
663 * never goes inactive EVER.
664 */
665 cur_ep_dist->dist_flags |= HTC_EP_ACTIVE;
666 } else if (cur_ep_dist->svc_id == WMI_DATA_BK_SVC)
667 /* this is the lowest priority data endpoint */
668 cred_info->lowestpri_ep_dist = cur_ep_dist->list;
669
670 /*
671 * Streams have to be created (explicit | implicit) for all
672 * kinds of traffic. BE endpoints are also inactive in the
673 * beginning. When BE traffic starts it creates implicit
674 * streams that redistributes credits.
675 *
676 * Note: all other endpoints have minimums set but are
677 * initially given NO credits. credits will be distributed
678 * as traffic activity demands
679 */
680 }
681
682 WARN_ON(cred_info->cur_free_credits <= 0);
683
684 list_for_each_entry(cur_ep_dist, ep_list, list) {
685 if (cur_ep_dist->endpoint == ENDPOINT_0)
686 continue;
687
688 if (cur_ep_dist->svc_id == WMI_CONTROL_SVC)
689 cur_ep_dist->cred_norm = cur_ep_dist->cred_per_msg;
690 else {
691 /*
692 * For the remaining data endpoints, we assume that
693 * each cred_per_msg are the same. We use a simple
694 * calculation here, we take the remaining credits
695 * and determine how many max messages this can
696 * cover and then set each endpoint's normal value
697 * equal to 3/4 this amount.
698 */
699 count = (cred_info->cur_free_credits /
700 cur_ep_dist->cred_per_msg)
701 * cur_ep_dist->cred_per_msg;
702 count = (count * 3) >> 2;
703 count = max(count, cur_ep_dist->cred_per_msg);
704 cur_ep_dist->cred_norm = count;
705
706 }
707 }
708}
709
710/* initialize and setup credit distribution */
711int ath6k_setup_credit_dist(void *htc_handle,
712 struct htc_credit_state_info *cred_info)
713{
714 u16 servicepriority[5];
715
716 memset(cred_info, 0, sizeof(struct htc_credit_state_info));
717
718 servicepriority[0] = WMI_CONTROL_SVC; /* highest */
719 servicepriority[1] = WMI_DATA_VO_SVC;
720 servicepriority[2] = WMI_DATA_VI_SVC;
721 servicepriority[3] = WMI_DATA_BE_SVC;
722 servicepriority[4] = WMI_DATA_BK_SVC; /* lowest */
723
724 /* set priority list */
ad226ec2 725 ath6kl_htc_set_credit_dist(htc_handle, cred_info, servicepriority, 5);
bdcd8170
KV		 726
727 return 0;
728}
729
730/* reduce an ep's credits back to a set limit */
731static void ath6k_reduce_credits(struct htc_credit_state_info *cred_info,
732 struct htc_endpoint_credit_dist *ep_dist,
733 int limit)
734{
735 int credits;
736
737 ep_dist->cred_assngd = limit;
738
739 if (ep_dist->credits <= limit)
740 return;
741
742 credits = ep_dist->credits - limit;
743 ep_dist->credits -= credits;
744 cred_info->cur_free_credits += credits;
745}
746
747static void ath6k_credit_update(struct htc_credit_state_info *cred_info,
748 struct list_head *epdist_list)
749{
750 struct htc_endpoint_credit_dist *cur_dist_list;
751
752 list_for_each_entry(cur_dist_list, epdist_list, list) {
753 if (cur_dist_list->endpoint == ENDPOINT_0)
754 continue;
755
756 if (cur_dist_list->cred_to_dist > 0) {
757 cur_dist_list->credits +=
758 cur_dist_list->cred_to_dist;
759 cur_dist_list->cred_to_dist = 0;
760 if (cur_dist_list->credits >
761 cur_dist_list->cred_assngd)
762 ath6k_reduce_credits(cred_info,
763 cur_dist_list,
764 cur_dist_list->cred_assngd);
765
766 if (cur_dist_list->credits >
767 cur_dist_list->cred_norm)
768 ath6k_reduce_credits(cred_info, cur_dist_list,
769 cur_dist_list->cred_norm);
770
771 if (!(cur_dist_list->dist_flags & HTC_EP_ACTIVE)) {
772 if (cur_dist_list->txq_depth == 0)
773 ath6k_reduce_credits(cred_info,
774 cur_dist_list, 0);
775 }
776 }
777 }
778}
779
780/*
781 * HTC has an endpoint that needs credits, ep_dist is the endpoint in
782 * question.
783 */
784void ath6k_seek_credits(struct htc_credit_state_info *cred_info,
785 struct htc_endpoint_credit_dist *ep_dist)
786{
787 struct htc_endpoint_credit_dist *curdist_list;
788 int credits = 0;
789 int need;
790
791 if (ep_dist->svc_id == WMI_CONTROL_SVC)
792 goto out;
793
794 if ((ep_dist->svc_id == WMI_DATA_VI_SVC) ||
795 (ep_dist->svc_id == WMI_DATA_VO_SVC))
796 if ((ep_dist->cred_assngd >= ep_dist->cred_norm))
797 goto out;
798
799 /*
800 * For all other services, we follow a simple algorithm of:
801 *
802 * 1. checking the free pool for credits
803 * 2. checking lower priority endpoints for credits to take
804 */
805
806 credits = min(cred_info->cur_free_credits, ep_dist->seek_cred);
807
808 if (credits >= ep_dist->seek_cred)
809 goto out;
810
811 /*
812 * We don't have enough in the free pool, try taking away from
813 * lower priority services The rule for taking away credits:
814 *
815 * 1. Only take from lower priority endpoints
816 * 2. Only take what is allocated above the minimum (never
817 * starve an endpoint completely)
818 * 3. Only take what you need.
819 */
820
821 list_for_each_entry_reverse(curdist_list,
822 &cred_info->lowestpri_ep_dist,
823 list) {
824 if (curdist_list == ep_dist)
825 break;
826
827 need = ep_dist->seek_cred - cred_info->cur_free_credits;
828
829 if ((curdist_list->cred_assngd - need) >=
830 curdist_list->cred_min) {
831 /*
832 * The current one has been allocated more than
833 * it's minimum and it has enough credits assigned
834 * above it's minimum to fulfill our need try to
835 * take away just enough to fulfill our need.
836 */
837 ath6k_reduce_credits(cred_info, curdist_list,
838 curdist_list->cred_assngd - need);
839
840 if (cred_info->cur_free_credits >=
841 ep_dist->seek_cred)
842 break;
843 }
844
845 if (curdist_list->endpoint == ENDPOINT_0)
846 break;
847 }
848
849 credits = min(cred_info->cur_free_credits, ep_dist->seek_cred);
850
851out:
852 /* did we find some credits? */
853 if (credits)
854 ath6kl_deposit_credit_to_ep(cred_info, ep_dist, credits);
855
856 ep_dist->seek_cred = 0;
857}
858
859/* redistribute credits based on activity change */
860static void ath6k_redistribute_credits(struct htc_credit_state_info *info,
861 struct list_head *ep_dist_list)
862{
863 struct htc_endpoint_credit_dist *curdist_list;
864
865 list_for_each_entry(curdist_list, ep_dist_list, list) {
866 if (curdist_list->endpoint == ENDPOINT_0)
867 continue;
868
869 if ((curdist_list->svc_id == WMI_DATA_BK_SVC) ||
870 (curdist_list->svc_id == WMI_DATA_BE_SVC))
871 curdist_list->dist_flags |= HTC_EP_ACTIVE;
872
873 if ((curdist_list->svc_id != WMI_CONTROL_SVC) &&
874 !(curdist_list->dist_flags & HTC_EP_ACTIVE)) {
875 if (curdist_list->txq_depth == 0)
876 ath6k_reduce_credits(info,
877 curdist_list, 0);
878 else
879 ath6k_reduce_credits(info,
880 curdist_list,
881 curdist_list->cred_min);
882 }
883 }
884}
885
886/*
887 *
888 * This function is invoked whenever endpoints require credit
889 * distributions. A lock is held while this function is invoked, this
890 * function shall NOT block. The ep_dist_list is a list of distribution
891 * structures in prioritized order as defined by the call to the
892 * htc_set_credit_dist() api.
893 */
894void ath6k_credit_distribute(struct htc_credit_state_info *cred_info,
895 struct list_head *ep_dist_list,
896 enum htc_credit_dist_reason reason)
897{
898 switch (reason) {
899 case HTC_CREDIT_DIST_SEND_COMPLETE:
900 ath6k_credit_update(cred_info, ep_dist_list);
901 break;
902 case HTC_CREDIT_DIST_ACTIVITY_CHANGE:
903 ath6k_redistribute_credits(cred_info, ep_dist_list);
904 break;
905 default:
906 break;
907 }
908
909 WARN_ON(cred_info->cur_free_credits > cred_info->total_avail_credits);
910 WARN_ON(cred_info->cur_free_credits < 0);
911}
912
913void disconnect_timer_handler(unsigned long ptr)
914{
915 struct net_device *dev = (struct net_device *)ptr;
916 struct ath6kl *ar = ath6kl_priv(dev);
917
918 ath6kl_init_profile_info(ar);
919 ath6kl_disconnect(ar);
920}
921
922void ath6kl_disconnect(struct ath6kl *ar)
923{
59c98449
VT		 924 /* TODO: Pass vif instead of taking it from ar */
925 struct ath6kl_vif *vif = ar->vif;
926
927 if (test_bit(CONNECTED, &vif->flags) ||
928 test_bit(CONNECT_PEND, &vif->flags)) {
bdcd8170
KV		 929 ath6kl_wmi_disconnect_cmd(ar->wmi);
930 /*
931 * Disconnect command is issued, clear the connect pending
932 * flag. The connected flag will be cleared in
933 * disconnect event notification.
934 */
59c98449 935 clear_bit(CONNECT_PEND, &vif->flags);
bdcd8170
KV		 936 }
937}
938
abcb344b
KV		 939void ath6kl_deep_sleep_enable(struct ath6kl *ar)
940{
59c98449
VT		 941 /* TODO: Pass vif instead of taking it from ar */
942 struct ath6kl_vif *vif = ar->vif;
943
abcb344b
KV		 944 switch (ar->sme_state) {
945 case SME_CONNECTING:
8c8b65e3 946 cfg80211_connect_result(ar->net_dev, vif->bssid, NULL, 0,
abcb344b
KV		 947 NULL, 0,
948 WLAN_STATUS_UNSPECIFIED_FAILURE,
949 GFP_KERNEL);
950 break;
951 case SME_CONNECTED:
952 default:
953 /*
954 * FIXME: oddly enough smeState is in DISCONNECTED during
955 * suspend, why? Need to send disconnected event in that
956 * state.
957 */
958 cfg80211_disconnected(ar->net_dev, 0, NULL, 0, GFP_KERNEL);
959 break;
960 }
961
59c98449
VT		 962 if (test_bit(CONNECTED, &vif->flags) ||
963 test_bit(CONNECT_PEND, &vif->flags))
abcb344b
KV		 964 ath6kl_wmi_disconnect_cmd(ar->wmi);
965
966 ar->sme_state = SME_DISCONNECTED;
967
968 /* disable scanning */
969 if (ath6kl_wmi_scanparams_cmd(ar->wmi, 0xFFFF, 0, 0, 0, 0, 0, 0, 0,
970 0, 0) != 0)
971 printk(KERN_WARNING "ath6kl: failed to disable scan "
972 "during suspend\n");
973
974 ath6kl_cfg80211_scan_complete_event(ar, -ECANCELED);
aa6cffc1
CN		 975
976 /* save the current power mode before enabling power save */
977 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
978
979 if (ath6kl_wmi_powermode_cmd(ar->wmi, REC_POWER) != 0)
980 ath6kl_warn("ath6kl_deep_sleep_enable: "
981 "wmi_powermode_cmd failed\n");
abcb344b
KV		 982}
983
bdcd8170
KV		 984/* WMI Event handlers */
985
986static const char *get_hw_id_string(u32 id)
987{
988 switch (id) {
989 case AR6003_REV1_VERSION:
990 return "1.0";
991 case AR6003_REV2_VERSION:
992 return "2.0";
993 case AR6003_REV3_VERSION:
994 return "2.1.1";
995 default:
996 return "unknown";
997 }
998}
999
1000void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver)
1001{
1002 struct ath6kl *ar = devt;
1003 struct net_device *dev = ar->net_dev;
1004
1005 memcpy(dev->dev_addr, datap, ETH_ALEN);
1006 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: mac addr = %pM\n",
1007 __func__, dev->dev_addr);
1008
1009 ar->version.wlan_ver = sw_ver;
1010 ar->version.abi_ver = abi_ver;
1011
be98e3a4
VT		 1012 snprintf(ar->wiphy->fw_version,
1013 sizeof(ar->wiphy->fw_version),
bdcd8170
KV		 1014 "%u.%u.%u.%u",
1015 (ar->version.wlan_ver & 0xf0000000) >> 28,
1016 (ar->version.wlan_ver & 0x0f000000) >> 24,
1017 (ar->version.wlan_ver & 0x00ff0000) >> 16,
1018 (ar->version.wlan_ver & 0x0000ffff));
1019
1020 /* indicate to the waiting thread that the ready event was received */
1021 set_bit(WMI_READY, &ar->flag);
1022 wake_up(&ar->event_wq);
1023
003353b0 1024 ath6kl_info("hw %s fw %s%s\n",
be98e3a4
VT		 1025 get_hw_id_string(ar->wiphy->hw_version),
1026 ar->wiphy->fw_version,
003353b0 1027 test_bit(TESTMODE, &ar->flag) ? " testmode" : "");
bdcd8170
KV		 1028}
1029
1030void ath6kl_scan_complete_evt(struct ath6kl *ar, int status)
1031{
59c98449
VT		 1032 /* TODO: Pass vif instead of taking it from ar */
1033 struct ath6kl_vif *vif = ar->vif;
1034
bdcd8170
KV		 1035 ath6kl_cfg80211_scan_complete_event(ar, status);
1036
551185ca 1037 if (!ar->usr_bss_filter) {
59c98449 1038 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
bdcd8170 1039 ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0);
551185ca 1040 }
bdcd8170
KV		 1041
1042 ath6kl_dbg(ATH6KL_DBG_WLAN_SCAN, "scan complete: %d\n", status);
1043}
1044
1045void ath6kl_connect_event(struct ath6kl *ar, u16 channel, u8 *bssid,
1046 u16 listen_int, u16 beacon_int,
1047 enum network_type net_type, u8 beacon_ie_len,
1048 u8 assoc_req_len, u8 assoc_resp_len,
1049 u8 *assoc_info)
1050{
59c98449
VT		 1051 /* TODO: findout vif instead of taking it from ar */
1052 struct ath6kl_vif *vif = ar->vif;
1053
bdcd8170
KV		 1054 ath6kl_cfg80211_connect_event(ar, channel, bssid,
1055 listen_int, beacon_int,
1056 net_type, beacon_ie_len,
1057 assoc_req_len, assoc_resp_len,
1058 assoc_info);
1059
8c8b65e3 1060 memcpy(vif->bssid, bssid, sizeof(vif->bssid));
f74bac54 1061 vif->bss_ch = channel;
bdcd8170 1062
f5938f24 1063 if ((vif->nw_type == INFRA_NETWORK))
bdcd8170
KV		 1064 ath6kl_wmi_listeninterval_cmd(ar->wmi, ar->listen_intvl_t,
1065 ar->listen_intvl_b);
1066
1067 netif_wake_queue(ar->net_dev);
1068
1069 /* Update connect & link status atomically */
151bd30b 1070 spin_lock_bh(&ar->lock);
59c98449
VT		 1071 set_bit(CONNECTED, &vif->flags);
1072 clear_bit(CONNECT_PEND, &vif->flags);
bdcd8170 1073 netif_carrier_on(ar->net_dev);
151bd30b 1074 spin_unlock_bh(&ar->lock);
bdcd8170
KV		 1075
1076 aggr_reset_state(ar->aggr_cntxt);
1077 ar->reconnect_flag = 0;
1078
f5938f24 1079 if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) {
bdcd8170
KV		 1080 memset(ar->node_map, 0, sizeof(ar->node_map));
1081 ar->node_num = 0;
1082 ar->next_ep_id = ENDPOINT_2;
1083 }
1084
551185ca 1085 if (!ar->usr_bss_filter) {
59c98449 1086 set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
551185ca
JM		 1087 ath6kl_wmi_bssfilter_cmd(ar->wmi, CURRENT_BSS_FILTER, 0);
1088 }
bdcd8170
KV		 1089}
1090
1091void ath6kl_tkip_micerr_event(struct ath6kl *ar, u8 keyid, bool ismcast)
1092{
1093 struct ath6kl_sta *sta;
f5938f24
VT		 1094 /* TODO: Findout vif */
1095 struct ath6kl_vif *vif = ar->vif;
bdcd8170
KV		 1096 u8 tsc[6];
1097 /*
1098 * For AP case, keyid will have aid of STA which sent pkt with
1099 * MIC error. Use this aid to get MAC & send it to hostapd.
1100 */
f5938f24 1101 if (vif->nw_type == AP_NETWORK) {
bdcd8170
KV		 1102 sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2));
1103 if (!sta)
1104 return;
1105
1106 ath6kl_dbg(ATH6KL_DBG_TRC,
1107 "ap tkip mic error received from aid=%d\n", keyid);
1108
1109 memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */
1110 cfg80211_michael_mic_failure(ar->net_dev, sta->mac,
1111 NL80211_KEYTYPE_PAIRWISE, keyid,
1112 tsc, GFP_KERNEL);
1113 } else
1114 ath6kl_cfg80211_tkip_micerr_event(ar, keyid, ismcast);
1115
1116}
1117
1118static void ath6kl_update_target_stats(struct ath6kl *ar, u8 *ptr, u32 len)
1119{
1120 struct wmi_target_stats *tgt_stats =
1121 (struct wmi_target_stats *) ptr;
1122 struct target_stats *stats = &ar->target_stats;
1123 struct tkip_ccmp_stats *ccmp_stats;
bdcd8170
KV		 1124 u8 ac;
1125
1126 if (len < sizeof(*tgt_stats))
1127 return;
1128
bdcd8170
KV		 1129 ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n");
1130
1131 stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt);
1132 stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte);
1133 stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt);
1134 stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte);
1135 stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt);
1136 stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte);
1137 stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt);
1138 stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte);
1139 stats->tx_rts_success_cnt +=
1140 le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt);
1141
1142 for (ac = 0; ac < WMM_NUM_AC; ac++)
1143 stats->tx_pkt_per_ac[ac] +=
1144 le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]);
1145
1146 stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err);
1147 stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt);
1148 stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt);
1149 stats->tx_mult_retry_cnt +=
1150 le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt);
1151 stats->tx_rts_fail_cnt +=
1152 le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt);
1153 stats->tx_ucast_rate =
1154 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate));
1155
1156 stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt);
1157 stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte);
1158 stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt);
1159 stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte);
1160 stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt);
1161 stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte);
1162 stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt);
1163 stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte);
1164 stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt);
1165 stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err);
1166 stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err);
1167 stats->rx_key_cache_miss +=
1168 le32_to_cpu(tgt_stats->stats.rx.key_cache_miss);
1169 stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err);
1170 stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame);
1171 stats->rx_ucast_rate =
1172 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate));
1173
1174 ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats;
1175
1176 stats->tkip_local_mic_fail +=
1177 le32_to_cpu(ccmp_stats->tkip_local_mic_fail);
1178 stats->tkip_cnter_measures_invoked +=
1179 le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked);
1180 stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err);
1181
1182 stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err);
1183 stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays);
1184
1185 stats->pwr_save_fail_cnt +=
1186 le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt);
1187 stats->noise_floor_calib =
1188 a_sle32_to_cpu(tgt_stats->noise_floor_calib);
1189
1190 stats->cs_bmiss_cnt +=
1191 le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt);
1192 stats->cs_low_rssi_cnt +=
1193 le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt);
1194 stats->cs_connect_cnt +=
1195 le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt);
1196 stats->cs_discon_cnt +=
1197 le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt);
1198
1199 stats->cs_ave_beacon_rssi =
1200 a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi);
1201
1202 stats->cs_last_roam_msec =
1203 tgt_stats->cserv_stats.cs_last_roam_msec;
1204 stats->cs_snr = tgt_stats->cserv_stats.cs_snr;
1205 stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi);
1206
1207 stats->lq_val = le32_to_cpu(tgt_stats->lq_val);
1208
1209 stats->wow_pkt_dropped +=
1210 le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped);
1211 stats->wow_host_pkt_wakeups +=
1212 tgt_stats->wow_stats.wow_host_pkt_wakeups;
1213 stats->wow_host_evt_wakeups +=
1214 tgt_stats->wow_stats.wow_host_evt_wakeups;
1215 stats->wow_evt_discarded +=
1216 le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded);
1217
1218 if (test_bit(STATS_UPDATE_PEND, &ar->flag)) {
1219 clear_bit(STATS_UPDATE_PEND, &ar->flag);
1220 wake_up(&ar->event_wq);
1221 }
1222}
1223
1224static void ath6kl_add_le32(__le32 *var, __le32 val)
1225{
1226 *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val));
1227}
1228
1229void ath6kl_tgt_stats_event(struct ath6kl *ar, u8 *ptr, u32 len)
1230{
1231 struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr;
1232 struct wmi_ap_mode_stat *ap = &ar->ap_stats;
1233 struct wmi_per_sta_stat *st_ap, *st_p;
f5938f24
VT		 1234 /* TODO: Findout vif */
1235 struct ath6kl_vif *vif = ar->vif;
bdcd8170
KV		 1236 u8 ac;
1237
f5938f24 1238 if (vif->nw_type == AP_NETWORK) {
bdcd8170
KV		 1239 if (len < sizeof(*p))
1240 return;
1241
1242 for (ac = 0; ac < AP_MAX_NUM_STA; ac++) {
1243 st_ap = &ap->sta[ac];
1244 st_p = &p->sta[ac];
1245
1246 ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes);
1247 ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts);
1248 ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error);
1249 ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard);
1250 ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes);
1251 ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts);
1252 ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error);
1253 ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard);
1254 }
1255
1256 } else {
1257 ath6kl_update_target_stats(ar, ptr, len);
1258 }
1259}
1260
1261void ath6kl_wakeup_event(void *dev)
1262{
1263 struct ath6kl *ar = (struct ath6kl *) dev;
1264
1265 wake_up(&ar->event_wq);
1266}
1267
1268void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr)
1269{
1270 struct ath6kl *ar = (struct ath6kl *) devt;
1271
1272 ar->tx_pwr = tx_pwr;
1273 wake_up(&ar->event_wq);
1274}
1275
1276void ath6kl_pspoll_event(struct ath6kl *ar, u8 aid)
1277{
1278 struct ath6kl_sta *conn;
1279 struct sk_buff *skb;
1280 bool psq_empty = false;
1281
1282 conn = ath6kl_find_sta_by_aid(ar, aid);
1283
1284 if (!conn)
1285 return;
1286 /*
1287 * Send out a packet queued on ps queue. When the ps queue
1288 * becomes empty update the PVB for this station.
1289 */
1290 spin_lock_bh(&conn->psq_lock);
1291 psq_empty = skb_queue_empty(&conn->psq);
1292 spin_unlock_bh(&conn->psq_lock);
1293
1294 if (psq_empty)
1295 /* TODO: Send out a NULL data frame */
1296 return;
1297
1298 spin_lock_bh(&conn->psq_lock);
1299 skb = skb_dequeue(&conn->psq);
1300 spin_unlock_bh(&conn->psq_lock);
1301
1302 conn->sta_flags |= STA_PS_POLLED;
1303 ath6kl_data_tx(skb, ar->net_dev);
1304 conn->sta_flags &= ~STA_PS_POLLED;
1305
1306 spin_lock_bh(&conn->psq_lock);
1307 psq_empty = skb_queue_empty(&conn->psq);
1308 spin_unlock_bh(&conn->psq_lock);
1309
1310 if (psq_empty)
1311 ath6kl_wmi_set_pvb_cmd(ar->wmi, conn->aid, 0);
1312}
1313
1314void ath6kl_dtimexpiry_event(struct ath6kl *ar)
1315{
1316 bool mcastq_empty = false;
1317 struct sk_buff *skb;
59c98449
VT		 1318 /* TODO: Pass vif instead of taking it from ar */
1319 struct ath6kl_vif *vif = ar->vif;
bdcd8170
KV		 1320
1321 /*
1322 * If there are no associated STAs, ignore the DTIM expiry event.
1323 * There can be potential race conditions where the last associated
1324 * STA may disconnect & before the host could clear the 'Indicate
1325 * DTIM' request to the firmware, the firmware would have just
1326 * indicated a DTIM expiry event. The race is between 'clear DTIM
1327 * expiry cmd' going from the host to the firmware & the DTIM
1328 * expiry event happening from the firmware to the host.
1329 */
1330 if (!ar->sta_list_index)
1331 return;
1332
1333 spin_lock_bh(&ar->mcastpsq_lock);
1334 mcastq_empty = skb_queue_empty(&ar->mcastpsq);
1335 spin_unlock_bh(&ar->mcastpsq_lock);
1336
1337 if (mcastq_empty)
1338 return;
1339
1340 /* set the STA flag to dtim_expired for the frame to go out */
59c98449 1341 set_bit(DTIM_EXPIRED, &vif->flags);
bdcd8170
KV		 1342
1343 spin_lock_bh(&ar->mcastpsq_lock);
1344 while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) {
1345 spin_unlock_bh(&ar->mcastpsq_lock);
1346
1347 ath6kl_data_tx(skb, ar->net_dev);
1348
1349 spin_lock_bh(&ar->mcastpsq_lock);
1350 }
1351 spin_unlock_bh(&ar->mcastpsq_lock);
1352
59c98449 1353 clear_bit(DTIM_EXPIRED, &vif->flags);
bdcd8170
KV		 1354
1355 /* clear the LSB of the BitMapCtl field of the TIM IE */
1356 ath6kl_wmi_set_pvb_cmd(ar->wmi, MCAST_AID, 0);
1357}
1358
1359void ath6kl_disconnect_event(struct ath6kl *ar, u8 reason, u8 *bssid,
1360 u8 assoc_resp_len, u8 *assoc_info,
1361 u16 prot_reason_status)
1362{
59c98449
VT		 1363 /* TODO: Findout vif instead of taking it from ar */
1364 struct ath6kl_vif *vif = ar->vif;
1365
f5938f24 1366 if (vif->nw_type == AP_NETWORK) {
bdcd8170
KV		 1367 if (!ath6kl_remove_sta(ar, bssid, prot_reason_status))
1368 return;
1369
1370 /* if no more associated STAs, empty the mcast PS q */
1371 if (ar->sta_list_index == 0) {
1372 spin_lock_bh(&ar->mcastpsq_lock);
1373 skb_queue_purge(&ar->mcastpsq);
1374 spin_unlock_bh(&ar->mcastpsq_lock);
1375
1376 /* clear the LSB of the TIM IE's BitMapCtl field */
1377 if (test_bit(WMI_READY, &ar->flag))
1378 ath6kl_wmi_set_pvb_cmd(ar->wmi, MCAST_AID, 0);
1379 }
1380
1381 if (!is_broadcast_ether_addr(bssid)) {
1382 /* send event to application */
1383 cfg80211_del_sta(ar->net_dev, bssid, GFP_KERNEL);
1384 }
1385
151411e8 1386 if (memcmp(ar->net_dev->dev_addr, bssid, ETH_ALEN) == 0) {
6f2a73f9 1387 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
59c98449 1388 clear_bit(CONNECTED, &vif->flags);
151411e8 1389 }
bdcd8170
KV		 1390 return;
1391 }
1392
1393 ath6kl_cfg80211_disconnect_event(ar, reason, bssid,
1394 assoc_resp_len, assoc_info,
1395 prot_reason_status);
1396
1397 aggr_reset_state(ar->aggr_cntxt);
1398
1399 del_timer(&ar->disconnect_timer);
1400
1401 ath6kl_dbg(ATH6KL_DBG_WLAN_CONNECT,
1402 "disconnect reason is %d\n", reason);
1403
1404 /*
1405 * If the event is due to disconnect cmd from the host, only they
1406 * the target would stop trying to connect. Under any other
1407 * condition, target would keep trying to connect.
1408 */
1409 if (reason == DISCONNECT_CMD) {
1410 if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag))
1411 ath6kl_wmi_bssfilter_cmd(ar->wmi, NONE_BSS_FILTER, 0);
1412 } else {
59c98449 1413 set_bit(CONNECT_PEND, &vif->flags);
bdcd8170
KV		 1414 if (((reason == ASSOC_FAILED) &&
1415 (prot_reason_status == 0x11)) ||
1416 ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0)
1417 && (ar->reconnect_flag == 1))) {
59c98449 1418 set_bit(CONNECTED, &vif->flags);
bdcd8170
KV		 1419 return;
1420 }
1421 }
1422
bdcd8170 1423 /* update connect & link status atomically */
151bd30b 1424 spin_lock_bh(&ar->lock);
59c98449 1425 clear_bit(CONNECTED, &vif->flags);
bdcd8170 1426 netif_carrier_off(ar->net_dev);
151bd30b 1427 spin_unlock_bh(&ar->lock);
bdcd8170
KV		 1428
1429 if ((reason != CSERV_DISCONNECT) || (ar->reconnect_flag != 1))
1430 ar->reconnect_flag = 0;
1431
1432 if (reason != CSERV_DISCONNECT)
1433 ar->user_key_ctrl = 0;
1434
1435 netif_stop_queue(ar->net_dev);
8c8b65e3 1436 memset(vif->bssid, 0, sizeof(vif->bssid));
f74bac54 1437 vif->bss_ch = 0;
bdcd8170
KV		 1438
1439 ath6kl_tx_data_cleanup(ar);
1440}
1441
1442static int ath6kl_open(struct net_device *dev)
1443{
1444 struct ath6kl *ar = ath6kl_priv(dev);
59c98449 1445 struct ath6kl_vif *vif = netdev_priv(dev);
bdcd8170 1446
151bd30b 1447 spin_lock_bh(&ar->lock);
bdcd8170 1448
59c98449 1449 set_bit(WLAN_ENABLED, &vif->flags);
bdcd8170 1450
59c98449 1451 if (test_bit(CONNECTED, &vif->flags)) {
bdcd8170
KV		 1452 netif_carrier_on(dev);
1453 netif_wake_queue(dev);
1454 } else
1455 netif_carrier_off(dev);
1456
151bd30b 1457 spin_unlock_bh(&ar->lock);
bdcd8170
KV		 1458
1459 return 0;
1460}
1461
1462static int ath6kl_close(struct net_device *dev)
1463{
1464 struct ath6kl *ar = ath6kl_priv(dev);
59c98449 1465 struct ath6kl_vif *vif = netdev_priv(dev);
bdcd8170
KV		 1466
1467 netif_stop_queue(dev);
1468
1469 ath6kl_disconnect(ar);
1470
1471 if (test_bit(WMI_READY, &ar->flag)) {
1472 if (ath6kl_wmi_scanparams_cmd(ar->wmi, 0xFFFF, 0, 0, 0, 0, 0, 0,
1473 0, 0, 0))
1474 return -EIO;
1475
59c98449 1476 clear_bit(WLAN_ENABLED, &vif->flags);
bdcd8170
KV		 1477 }
1478
1479 ath6kl_cfg80211_scan_complete_event(ar, -ECANCELED);
1480
1481 return 0;
1482}
1483
1484static struct net_device_stats *ath6kl_get_stats(struct net_device *dev)
1485{
1486 struct ath6kl *ar = ath6kl_priv(dev);
1487
1488 return &ar->net_stats;
1489}
1490
1491static struct net_device_ops ath6kl_netdev_ops = {
1492 .ndo_open = ath6kl_open,
1493 .ndo_stop = ath6kl_close,
1494 .ndo_start_xmit = ath6kl_data_tx,
1495 .ndo_get_stats = ath6kl_get_stats,
1496};
1497
1498void init_netdev(struct net_device *dev)
1499{
1500 dev->netdev_ops = &ath6kl_netdev_ops;
1501 dev->watchdog_timeo = ATH6KL_TX_TIMEOUT;
1502
1503 dev->needed_headroom = ETH_HLEN;
1504 dev->needed_headroom += sizeof(struct ath6kl_llc_snap_hdr) +
1505 sizeof(struct wmi_data_hdr) + HTC_HDR_LENGTH
1df94a85 1506 + WMI_MAX_TX_META_SZ + ATH6KL_HTC_ALIGN_BYTES;
bdcd8170
KV		 1507
1508 return;
1509}
Linux kernel - Deliverables
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