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