Commit | Line | Data |
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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 | ||
6765d0aa | 23 | struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr) |
bdcd8170 | 24 | { |
6765d0aa | 25 | struct ath6kl *ar = vif->ar; |
bdcd8170 KV |
26 | struct ath6kl_sta *conn = NULL; |
27 | u8 i, max_conn; | |
28 | ||
f5938f24 | 29 | max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0; |
bdcd8170 KV |
30 | |
31 | for (i = 0; i < max_conn; i++) { | |
32 | if (memcmp(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) { | |
33 | conn = &ar->sta_list[i]; | |
34 | break; | |
35 | } | |
36 | } | |
37 | ||
38 | return conn; | |
39 | } | |
40 | ||
41 | struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid) | |
42 | { | |
43 | struct ath6kl_sta *conn = NULL; | |
44 | u8 ctr; | |
45 | ||
46 | for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { | |
47 | if (ar->sta_list[ctr].aid == aid) { | |
48 | conn = &ar->sta_list[ctr]; | |
49 | break; | |
50 | } | |
51 | } | |
52 | return conn; | |
53 | } | |
54 | ||
55 | static void ath6kl_add_new_sta(struct ath6kl *ar, u8 *mac, u16 aid, u8 *wpaie, | |
56 | u8 ielen, u8 keymgmt, u8 ucipher, u8 auth) | |
57 | { | |
58 | struct ath6kl_sta *sta; | |
59 | u8 free_slot; | |
60 | ||
61 | free_slot = aid - 1; | |
62 | ||
63 | sta = &ar->sta_list[free_slot]; | |
64 | memcpy(sta->mac, mac, ETH_ALEN); | |
3c774bba JM |
65 | if (ielen <= ATH6KL_MAX_IE) |
66 | memcpy(sta->wpa_ie, wpaie, ielen); | |
bdcd8170 KV |
67 | sta->aid = aid; |
68 | sta->keymgmt = keymgmt; | |
69 | sta->ucipher = ucipher; | |
70 | sta->auth = auth; | |
71 | ||
72 | ar->sta_list_index = ar->sta_list_index | (1 << free_slot); | |
73 | ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid); | |
74 | } | |
75 | ||
76 | static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i) | |
77 | { | |
78 | struct ath6kl_sta *sta = &ar->sta_list[i]; | |
79 | ||
80 | /* empty the queued pkts in the PS queue if any */ | |
81 | spin_lock_bh(&sta->psq_lock); | |
82 | skb_queue_purge(&sta->psq); | |
83 | spin_unlock_bh(&sta->psq_lock); | |
84 | ||
85 | memset(&ar->ap_stats.sta[sta->aid - 1], 0, | |
86 | sizeof(struct wmi_per_sta_stat)); | |
87 | memset(sta->mac, 0, ETH_ALEN); | |
88 | memset(sta->wpa_ie, 0, ATH6KL_MAX_IE); | |
89 | sta->aid = 0; | |
90 | sta->sta_flags = 0; | |
91 | ||
92 | ar->sta_list_index = ar->sta_list_index & ~(1 << i); | |
93 | ||
94 | } | |
95 | ||
96 | static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason) | |
97 | { | |
98 | u8 i, removed = 0; | |
99 | ||
100 | if (is_zero_ether_addr(mac)) | |
101 | return removed; | |
102 | ||
103 | if (is_broadcast_ether_addr(mac)) { | |
104 | ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n"); | |
105 | ||
106 | for (i = 0; i < AP_MAX_NUM_STA; i++) { | |
107 | if (!is_zero_ether_addr(ar->sta_list[i].mac)) { | |
108 | ath6kl_sta_cleanup(ar, i); | |
109 | removed = 1; | |
110 | } | |
111 | } | |
112 | } else { | |
113 | for (i = 0; i < AP_MAX_NUM_STA; i++) { | |
114 | if (memcmp(ar->sta_list[i].mac, mac, ETH_ALEN) == 0) { | |
115 | ath6kl_dbg(ATH6KL_DBG_TRC, | |
116 | "deleting station %pM aid=%d reason=%d\n", | |
117 | mac, ar->sta_list[i].aid, reason); | |
118 | ath6kl_sta_cleanup(ar, i); | |
119 | removed = 1; | |
120 | break; | |
121 | } | |
122 | } | |
123 | } | |
124 | ||
125 | return removed; | |
126 | } | |
127 | ||
128 | enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac) | |
129 | { | |
130 | struct ath6kl *ar = devt; | |
131 | return ar->ac2ep_map[ac]; | |
132 | } | |
133 | ||
134 | struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar) | |
135 | { | |
136 | struct ath6kl_cookie *cookie; | |
137 | ||
138 | cookie = ar->cookie_list; | |
139 | if (cookie != NULL) { | |
140 | ar->cookie_list = cookie->arc_list_next; | |
141 | ar->cookie_count--; | |
142 | } | |
143 | ||
144 | return cookie; | |
145 | } | |
146 | ||
147 | void ath6kl_cookie_init(struct ath6kl *ar) | |
148 | { | |
149 | u32 i; | |
150 | ||
151 | ar->cookie_list = NULL; | |
152 | ar->cookie_count = 0; | |
153 | ||
154 | memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem)); | |
155 | ||
156 | for (i = 0; i < MAX_COOKIE_NUM; i++) | |
157 | ath6kl_free_cookie(ar, &ar->cookie_mem[i]); | |
158 | } | |
159 | ||
160 | void ath6kl_cookie_cleanup(struct ath6kl *ar) | |
161 | { | |
162 | ar->cookie_list = NULL; | |
163 | ar->cookie_count = 0; | |
164 | } | |
165 | ||
166 | void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie) | |
167 | { | |
168 | /* Insert first */ | |
169 | ||
170 | if (!ar || !cookie) | |
171 | return; | |
172 | ||
173 | cookie->arc_list_next = ar->cookie_list; | |
174 | ar->cookie_list = cookie; | |
175 | ar->cookie_count++; | |
176 | } | |
177 | ||
178 | /* set the window address register (using 4-byte register access ). */ | |
179 | static int ath6kl_set_addrwin_reg(struct ath6kl *ar, u32 reg_addr, u32 addr) | |
180 | { | |
181 | int status; | |
bdcd8170 | 182 | s32 i; |
b142b914 | 183 | __le32 addr_val; |
bdcd8170 KV |
184 | |
185 | /* | |
186 | * Write bytes 1,2,3 of the register to set the upper address bytes, | |
187 | * the LSB is written last to initiate the access cycle | |
188 | */ | |
189 | ||
190 | for (i = 1; i <= 3; i++) { | |
191 | /* | |
192 | * Fill the buffer with the address byte value we want to | |
b142b914 VT |
193 | * hit 4 times. No need to worry about endianness as the |
194 | * same byte is copied to all four bytes of addr_val at | |
195 | * any time. | |
bdcd8170 | 196 | */ |
b142b914 | 197 | memset((u8 *)&addr_val, ((u8 *)&addr)[i], 4); |
bdcd8170 KV |
198 | |
199 | /* | |
200 | * Hit each byte of the register address with a 4-byte | |
201 | * write operation to the same address, this is a harmless | |
202 | * operation. | |
203 | */ | |
b142b914 | 204 | status = hif_read_write_sync(ar, reg_addr + i, (u8 *)&addr_val, |
bdcd8170 KV |
205 | 4, HIF_WR_SYNC_BYTE_FIX); |
206 | if (status) | |
207 | break; | |
208 | } | |
209 | ||
210 | if (status) { | |
211 | ath6kl_err("failed to write initial bytes of 0x%x to window reg: 0x%X\n", | |
212 | addr, reg_addr); | |
213 | return status; | |
214 | } | |
215 | ||
216 | /* | |
217 | * Write the address register again, this time write the whole | |
218 | * 4-byte value. The effect here is that the LSB write causes the | |
219 | * cycle to start, the extra 3 byte write to bytes 1,2,3 has no | |
220 | * effect since we are writing the same values again | |
221 | */ | |
b142b914 VT |
222 | addr_val = cpu_to_le32(addr); |
223 | status = hif_read_write_sync(ar, reg_addr, | |
224 | (u8 *)&(addr_val), | |
bdcd8170 KV |
225 | 4, HIF_WR_SYNC_BYTE_INC); |
226 | ||
227 | if (status) { | |
228 | ath6kl_err("failed to write 0x%x to window reg: 0x%X\n", | |
229 | addr, reg_addr); | |
230 | return status; | |
231 | } | |
232 | ||
233 | return 0; | |
234 | } | |
235 | ||
236 | /* | |
addb44be KV |
237 | * Read from the hardware through its diagnostic window. No cooperation |
238 | * from the firmware is required for this. | |
bdcd8170 | 239 | */ |
addb44be | 240 | int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value) |
bdcd8170 | 241 | { |
addb44be | 242 | int ret; |
bdcd8170 KV |
243 | |
244 | /* set window register to start read cycle */ | |
addb44be KV |
245 | ret = ath6kl_set_addrwin_reg(ar, WINDOW_READ_ADDR_ADDRESS, address); |
246 | if (ret) | |
247 | return ret; | |
bdcd8170 KV |
248 | |
249 | /* read the data */ | |
addb44be KV |
250 | ret = hif_read_write_sync(ar, WINDOW_DATA_ADDRESS, (u8 *) value, |
251 | sizeof(*value), HIF_RD_SYNC_BYTE_INC); | |
252 | if (ret) { | |
253 | ath6kl_warn("failed to read32 through diagnose window: %d\n", | |
254 | ret); | |
255 | return ret; | |
bdcd8170 KV |
256 | } |
257 | ||
addb44be | 258 | return 0; |
bdcd8170 KV |
259 | } |
260 | ||
bdcd8170 KV |
261 | /* |
262 | * Write to the ATH6KL through its diagnostic window. No cooperation from | |
263 | * the Target is required for this. | |
264 | */ | |
f9ea0753 | 265 | int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value) |
bdcd8170 | 266 | { |
addb44be | 267 | int ret; |
bdcd8170 KV |
268 | |
269 | /* set write data */ | |
addb44be KV |
270 | ret = hif_read_write_sync(ar, WINDOW_DATA_ADDRESS, (u8 *) &value, |
271 | sizeof(value), HIF_WR_SYNC_BYTE_INC); | |
272 | if (ret) { | |
273 | ath6kl_err("failed to write 0x%x during diagnose window to 0x%d\n", | |
274 | address, value); | |
275 | return ret; | |
bdcd8170 KV |
276 | } |
277 | ||
278 | /* set window register, which starts the write cycle */ | |
279 | return ath6kl_set_addrwin_reg(ar, WINDOW_WRITE_ADDR_ADDRESS, | |
addb44be | 280 | address); |
bdcd8170 KV |
281 | } |
282 | ||
addb44be | 283 | int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length) |
bdcd8170 | 284 | { |
addb44be KV |
285 | u32 count, *buf = data; |
286 | int ret; | |
bdcd8170 | 287 | |
addb44be KV |
288 | if (WARN_ON(length % 4)) |
289 | return -EINVAL; | |
290 | ||
291 | for (count = 0; count < length / 4; count++, address += 4) { | |
292 | ret = ath6kl_diag_read32(ar, address, &buf[count]); | |
293 | if (ret) | |
294 | return ret; | |
bdcd8170 KV |
295 | } |
296 | ||
addb44be KV |
297 | return 0; |
298 | } | |
299 | ||
300 | int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length) | |
301 | { | |
f9ea0753 VT |
302 | u32 count; |
303 | __le32 *buf = data; | |
addb44be KV |
304 | int ret; |
305 | ||
306 | if (WARN_ON(length % 4)) | |
307 | return -EINVAL; | |
308 | ||
309 | for (count = 0; count < length / 4; count++, address += 4) { | |
310 | ret = ath6kl_diag_write32(ar, address, buf[count]); | |
311 | if (ret) | |
312 | return ret; | |
313 | } | |
314 | ||
315 | return 0; | |
bdcd8170 KV |
316 | } |
317 | ||
bc07ddb2 KV |
318 | int ath6kl_read_fwlogs(struct ath6kl *ar) |
319 | { | |
320 | struct ath6kl_dbglog_hdr debug_hdr; | |
321 | struct ath6kl_dbglog_buf debug_buf; | |
322 | u32 address, length, dropped, firstbuf, debug_hdr_addr; | |
323 | int ret = 0, loop; | |
324 | u8 *buf; | |
325 | ||
326 | buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL); | |
327 | if (!buf) | |
328 | return -ENOMEM; | |
329 | ||
330 | address = TARG_VTOP(ar->target_type, | |
331 | ath6kl_get_hi_item_addr(ar, | |
332 | HI_ITEM(hi_dbglog_hdr))); | |
333 | ||
334 | ret = ath6kl_diag_read32(ar, address, &debug_hdr_addr); | |
335 | if (ret) | |
336 | goto out; | |
337 | ||
338 | /* Get the contents of the ring buffer */ | |
339 | if (debug_hdr_addr == 0) { | |
340 | ath6kl_warn("Invalid address for debug_hdr_addr\n"); | |
341 | ret = -EINVAL; | |
342 | goto out; | |
343 | } | |
344 | ||
345 | address = TARG_VTOP(ar->target_type, debug_hdr_addr); | |
346 | ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr)); | |
347 | ||
348 | address = TARG_VTOP(ar->target_type, | |
349 | le32_to_cpu(debug_hdr.dbuf_addr)); | |
350 | firstbuf = address; | |
351 | dropped = le32_to_cpu(debug_hdr.dropped); | |
352 | ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf)); | |
353 | ||
354 | loop = 100; | |
355 | ||
356 | do { | |
357 | address = TARG_VTOP(ar->target_type, | |
358 | le32_to_cpu(debug_buf.buffer_addr)); | |
359 | length = le32_to_cpu(debug_buf.length); | |
360 | ||
361 | if (length != 0 && (le32_to_cpu(debug_buf.length) <= | |
362 | le32_to_cpu(debug_buf.bufsize))) { | |
363 | length = ALIGN(length, 4); | |
364 | ||
365 | ret = ath6kl_diag_read(ar, address, | |
366 | buf, length); | |
367 | if (ret) | |
368 | goto out; | |
369 | ||
370 | ath6kl_debug_fwlog_event(ar, buf, length); | |
371 | } | |
372 | ||
373 | address = TARG_VTOP(ar->target_type, | |
374 | le32_to_cpu(debug_buf.next)); | |
375 | ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf)); | |
376 | if (ret) | |
377 | goto out; | |
378 | ||
379 | loop--; | |
380 | ||
381 | if (WARN_ON(loop == 0)) { | |
382 | ret = -ETIMEDOUT; | |
383 | goto out; | |
384 | } | |
385 | } while (address != firstbuf); | |
386 | ||
387 | out: | |
388 | kfree(buf); | |
389 | ||
390 | return ret; | |
391 | } | |
392 | ||
31024d99 KF |
393 | /* FIXME: move to a better place, target.h? */ |
394 | #define AR6003_RESET_CONTROL_ADDRESS 0x00004000 | |
395 | #define AR6004_RESET_CONTROL_ADDRESS 0x00004000 | |
396 | ||
6db8fa53 VT |
397 | void ath6kl_reset_device(struct ath6kl *ar, u32 target_type, |
398 | bool wait_fot_compltn, bool cold_reset) | |
bdcd8170 KV |
399 | { |
400 | int status = 0; | |
401 | u32 address; | |
f9ea0753 | 402 | __le32 data; |
bdcd8170 | 403 | |
31024d99 KF |
404 | if (target_type != TARGET_TYPE_AR6003 && |
405 | target_type != TARGET_TYPE_AR6004) | |
bdcd8170 KV |
406 | return; |
407 | ||
f9ea0753 VT |
408 | data = cold_reset ? cpu_to_le32(RESET_CONTROL_COLD_RST) : |
409 | cpu_to_le32(RESET_CONTROL_MBOX_RST); | |
bdcd8170 | 410 | |
31024d99 KF |
411 | switch (target_type) { |
412 | case TARGET_TYPE_AR6003: | |
413 | address = AR6003_RESET_CONTROL_ADDRESS; | |
414 | break; | |
415 | case TARGET_TYPE_AR6004: | |
416 | address = AR6004_RESET_CONTROL_ADDRESS; | |
417 | break; | |
418 | default: | |
419 | address = AR6003_RESET_CONTROL_ADDRESS; | |
420 | break; | |
421 | } | |
422 | ||
addb44be | 423 | status = ath6kl_diag_write32(ar, address, data); |
bdcd8170 KV |
424 | |
425 | if (status) | |
426 | ath6kl_err("failed to reset target\n"); | |
427 | } | |
428 | ||
240d2799 | 429 | static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif) |
bdcd8170 KV |
430 | { |
431 | u8 index; | |
432 | u8 keyusage; | |
433 | ||
434 | for (index = WMI_MIN_KEY_INDEX; index <= WMI_MAX_KEY_INDEX; index++) { | |
6f2a73f9 | 435 | if (vif->wep_key_list[index].key_len) { |
bdcd8170 | 436 | keyusage = GROUP_USAGE; |
3450334f | 437 | if (index == vif->def_txkey_index) |
bdcd8170 KV |
438 | keyusage |= TX_USAGE; |
439 | ||
240d2799 | 440 | ath6kl_wmi_addkey_cmd(vif->ar->wmi, vif->fw_vif_idx, |
bdcd8170 KV |
441 | index, |
442 | WEP_CRYPT, | |
443 | keyusage, | |
6f2a73f9 | 444 | vif->wep_key_list[index].key_len, |
bdcd8170 | 445 | NULL, |
6f2a73f9 | 446 | vif->wep_key_list[index].key, |
bdcd8170 KV |
447 | KEY_OP_INIT_VAL, NULL, |
448 | NO_SYNC_WMIFLAG); | |
449 | } | |
450 | } | |
451 | } | |
452 | ||
240d2799 | 453 | void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel) |
bdcd8170 | 454 | { |
240d2799 | 455 | struct ath6kl *ar = vif->ar; |
bdcd8170 | 456 | struct ath6kl_req_key *ik; |
9a5b1318 JM |
457 | int res; |
458 | u8 key_rsc[ATH6KL_KEY_SEQ_LEN]; | |
bdcd8170 | 459 | |
572e27c0 | 460 | ik = &ar->ap_mode_bkey; |
bdcd8170 | 461 | |
572e27c0 | 462 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel); |
9a5b1318 | 463 | |
3450334f | 464 | switch (vif->auth_mode) { |
572e27c0 | 465 | case NONE_AUTH: |
3450334f | 466 | if (vif->prwise_crypto == WEP_CRYPT) |
240d2799 | 467 | ath6kl_install_static_wep_keys(vif); |
572e27c0 JM |
468 | break; |
469 | case WPA_PSK_AUTH: | |
470 | case WPA2_PSK_AUTH: | |
471 | case (WPA_PSK_AUTH | WPA2_PSK_AUTH): | |
472 | if (!ik->valid) | |
bdcd8170 | 473 | break; |
9a5b1318 | 474 | |
572e27c0 JM |
475 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed addkey for " |
476 | "the initial group key for AP mode\n"); | |
477 | memset(key_rsc, 0, sizeof(key_rsc)); | |
478 | res = ath6kl_wmi_addkey_cmd( | |
334234b5 | 479 | ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type, |
572e27c0 JM |
480 | GROUP_USAGE, ik->key_len, key_rsc, ik->key, |
481 | KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG); | |
482 | if (res) { | |
483 | ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delayed " | |
484 | "addkey failed: %d\n", res); | |
bdcd8170 | 485 | } |
572e27c0 | 486 | break; |
bdcd8170 KV |
487 | } |
488 | ||
240d2799 | 489 | ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0); |
59c98449 | 490 | set_bit(CONNECTED, &vif->flags); |
240d2799 | 491 | netif_carrier_on(vif->ndev); |
572e27c0 JM |
492 | } |
493 | ||
240d2799 | 494 | void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr, |
572e27c0 JM |
495 | u8 keymgmt, u8 ucipher, u8 auth, |
496 | u8 assoc_req_len, u8 *assoc_info) | |
497 | { | |
240d2799 | 498 | struct ath6kl *ar = vif->ar; |
572e27c0 JM |
499 | u8 *ies = NULL, *wpa_ie = NULL, *pos; |
500 | size_t ies_len = 0; | |
501 | struct station_info sinfo; | |
502 | ||
503 | ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid); | |
bdcd8170 | 504 | |
3c774bba JM |
505 | if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) { |
506 | struct ieee80211_mgmt *mgmt = | |
507 | (struct ieee80211_mgmt *) assoc_info; | |
508 | if (ieee80211_is_assoc_req(mgmt->frame_control) && | |
509 | assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) + | |
510 | sizeof(mgmt->u.assoc_req)) { | |
511 | ies = mgmt->u.assoc_req.variable; | |
512 | ies_len = assoc_info + assoc_req_len - ies; | |
513 | } else if (ieee80211_is_reassoc_req(mgmt->frame_control) && | |
514 | assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) | |
515 | + sizeof(mgmt->u.reassoc_req)) { | |
516 | ies = mgmt->u.reassoc_req.variable; | |
517 | ies_len = assoc_info + assoc_req_len - ies; | |
518 | } | |
519 | } | |
520 | ||
521 | pos = ies; | |
522 | while (pos && pos + 1 < ies + ies_len) { | |
523 | if (pos + 2 + pos[1] > ies + ies_len) | |
524 | break; | |
525 | if (pos[0] == WLAN_EID_RSN) | |
526 | wpa_ie = pos; /* RSN IE */ | |
527 | else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && | |
528 | pos[1] >= 4 && | |
529 | pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) { | |
530 | if (pos[5] == 0x01) | |
531 | wpa_ie = pos; /* WPA IE */ | |
532 | else if (pos[5] == 0x04) { | |
533 | wpa_ie = pos; /* WPS IE */ | |
534 | break; /* overrides WPA/RSN IE */ | |
535 | } | |
536 | } | |
537 | pos += 2 + pos[1]; | |
538 | } | |
539 | ||
572e27c0 | 540 | ath6kl_add_new_sta(ar, mac_addr, aid, wpa_ie, |
3c774bba | 541 | wpa_ie ? 2 + wpa_ie[1] : 0, |
572e27c0 | 542 | keymgmt, ucipher, auth); |
bdcd8170 KV |
543 | |
544 | /* send event to application */ | |
545 | memset(&sinfo, 0, sizeof(sinfo)); | |
546 | ||
547 | /* TODO: sinfo.generation */ | |
3c774bba JM |
548 | |
549 | sinfo.assoc_req_ies = ies; | |
550 | sinfo.assoc_req_ies_len = ies_len; | |
551 | sinfo.filled |= STATION_INFO_ASSOC_REQ_IES; | |
552 | ||
240d2799 | 553 | cfg80211_new_sta(vif->ndev, mac_addr, &sinfo, GFP_KERNEL); |
bdcd8170 | 554 | |
240d2799 | 555 | netif_wake_queue(vif->ndev); |
bdcd8170 KV |
556 | } |
557 | ||
558 | /* Functions for Tx credit handling */ | |
559 | void ath6k_credit_init(struct htc_credit_state_info *cred_info, | |
560 | struct list_head *ep_list, | |
561 | int tot_credits) | |
562 | { | |
563 | struct htc_endpoint_credit_dist *cur_ep_dist; | |
564 | int count; | |
565 | ||
566 | cred_info->cur_free_credits = tot_credits; | |
567 | cred_info->total_avail_credits = tot_credits; | |
568 | ||
569 | list_for_each_entry(cur_ep_dist, ep_list, list) { | |
570 | if (cur_ep_dist->endpoint == ENDPOINT_0) | |
571 | continue; | |
572 | ||
573 | cur_ep_dist->cred_min = cur_ep_dist->cred_per_msg; | |
574 | ||
575 | if (tot_credits > 4) | |
576 | if ((cur_ep_dist->svc_id == WMI_DATA_BK_SVC) || | |
577 | (cur_ep_dist->svc_id == WMI_DATA_BE_SVC)) { | |
578 | ath6kl_deposit_credit_to_ep(cred_info, | |
579 | cur_ep_dist, | |
580 | cur_ep_dist->cred_min); | |
581 | cur_ep_dist->dist_flags |= HTC_EP_ACTIVE; | |
582 | } | |
583 | ||
584 | if (cur_ep_dist->svc_id == WMI_CONTROL_SVC) { | |
585 | ath6kl_deposit_credit_to_ep(cred_info, cur_ep_dist, | |
586 | cur_ep_dist->cred_min); | |
587 | /* | |
588 | * Control service is always marked active, it | |
589 | * never goes inactive EVER. | |
590 | */ | |
591 | cur_ep_dist->dist_flags |= HTC_EP_ACTIVE; | |
592 | } else if (cur_ep_dist->svc_id == WMI_DATA_BK_SVC) | |
593 | /* this is the lowest priority data endpoint */ | |
594 | cred_info->lowestpri_ep_dist = cur_ep_dist->list; | |
595 | ||
596 | /* | |
597 | * Streams have to be created (explicit | implicit) for all | |
598 | * kinds of traffic. BE endpoints are also inactive in the | |
599 | * beginning. When BE traffic starts it creates implicit | |
600 | * streams that redistributes credits. | |
601 | * | |
602 | * Note: all other endpoints have minimums set but are | |
603 | * initially given NO credits. credits will be distributed | |
604 | * as traffic activity demands | |
605 | */ | |
606 | } | |
607 | ||
608 | WARN_ON(cred_info->cur_free_credits <= 0); | |
609 | ||
610 | list_for_each_entry(cur_ep_dist, ep_list, list) { | |
611 | if (cur_ep_dist->endpoint == ENDPOINT_0) | |
612 | continue; | |
613 | ||
614 | if (cur_ep_dist->svc_id == WMI_CONTROL_SVC) | |
615 | cur_ep_dist->cred_norm = cur_ep_dist->cred_per_msg; | |
616 | else { | |
617 | /* | |
618 | * For the remaining data endpoints, we assume that | |
619 | * each cred_per_msg are the same. We use a simple | |
620 | * calculation here, we take the remaining credits | |
621 | * and determine how many max messages this can | |
622 | * cover and then set each endpoint's normal value | |
623 | * equal to 3/4 this amount. | |
624 | */ | |
625 | count = (cred_info->cur_free_credits / | |
626 | cur_ep_dist->cred_per_msg) | |
627 | * cur_ep_dist->cred_per_msg; | |
628 | count = (count * 3) >> 2; | |
629 | count = max(count, cur_ep_dist->cred_per_msg); | |
630 | cur_ep_dist->cred_norm = count; | |
631 | ||
632 | } | |
633 | } | |
634 | } | |
635 | ||
636 | /* initialize and setup credit distribution */ | |
637 | int ath6k_setup_credit_dist(void *htc_handle, | |
638 | struct htc_credit_state_info *cred_info) | |
639 | { | |
640 | u16 servicepriority[5]; | |
641 | ||
642 | memset(cred_info, 0, sizeof(struct htc_credit_state_info)); | |
643 | ||
644 | servicepriority[0] = WMI_CONTROL_SVC; /* highest */ | |
645 | servicepriority[1] = WMI_DATA_VO_SVC; | |
646 | servicepriority[2] = WMI_DATA_VI_SVC; | |
647 | servicepriority[3] = WMI_DATA_BE_SVC; | |
648 | servicepriority[4] = WMI_DATA_BK_SVC; /* lowest */ | |
649 | ||
650 | /* set priority list */ | |
ad226ec2 | 651 | ath6kl_htc_set_credit_dist(htc_handle, cred_info, servicepriority, 5); |
bdcd8170 KV |
652 | |
653 | return 0; | |
654 | } | |
655 | ||
656 | /* reduce an ep's credits back to a set limit */ | |
657 | static void ath6k_reduce_credits(struct htc_credit_state_info *cred_info, | |
658 | struct htc_endpoint_credit_dist *ep_dist, | |
659 | int limit) | |
660 | { | |
661 | int credits; | |
662 | ||
663 | ep_dist->cred_assngd = limit; | |
664 | ||
665 | if (ep_dist->credits <= limit) | |
666 | return; | |
667 | ||
668 | credits = ep_dist->credits - limit; | |
669 | ep_dist->credits -= credits; | |
670 | cred_info->cur_free_credits += credits; | |
671 | } | |
672 | ||
673 | static void ath6k_credit_update(struct htc_credit_state_info *cred_info, | |
674 | struct list_head *epdist_list) | |
675 | { | |
676 | struct htc_endpoint_credit_dist *cur_dist_list; | |
677 | ||
678 | list_for_each_entry(cur_dist_list, epdist_list, list) { | |
679 | if (cur_dist_list->endpoint == ENDPOINT_0) | |
680 | continue; | |
681 | ||
682 | if (cur_dist_list->cred_to_dist > 0) { | |
683 | cur_dist_list->credits += | |
684 | cur_dist_list->cred_to_dist; | |
685 | cur_dist_list->cred_to_dist = 0; | |
686 | if (cur_dist_list->credits > | |
687 | cur_dist_list->cred_assngd) | |
688 | ath6k_reduce_credits(cred_info, | |
689 | cur_dist_list, | |
690 | cur_dist_list->cred_assngd); | |
691 | ||
692 | if (cur_dist_list->credits > | |
693 | cur_dist_list->cred_norm) | |
694 | ath6k_reduce_credits(cred_info, cur_dist_list, | |
695 | cur_dist_list->cred_norm); | |
696 | ||
697 | if (!(cur_dist_list->dist_flags & HTC_EP_ACTIVE)) { | |
698 | if (cur_dist_list->txq_depth == 0) | |
699 | ath6k_reduce_credits(cred_info, | |
700 | cur_dist_list, 0); | |
701 | } | |
702 | } | |
703 | } | |
704 | } | |
705 | ||
706 | /* | |
707 | * HTC has an endpoint that needs credits, ep_dist is the endpoint in | |
708 | * question. | |
709 | */ | |
710 | void ath6k_seek_credits(struct htc_credit_state_info *cred_info, | |
711 | struct htc_endpoint_credit_dist *ep_dist) | |
712 | { | |
713 | struct htc_endpoint_credit_dist *curdist_list; | |
714 | int credits = 0; | |
715 | int need; | |
716 | ||
717 | if (ep_dist->svc_id == WMI_CONTROL_SVC) | |
718 | goto out; | |
719 | ||
720 | if ((ep_dist->svc_id == WMI_DATA_VI_SVC) || | |
721 | (ep_dist->svc_id == WMI_DATA_VO_SVC)) | |
722 | if ((ep_dist->cred_assngd >= ep_dist->cred_norm)) | |
723 | goto out; | |
724 | ||
725 | /* | |
726 | * For all other services, we follow a simple algorithm of: | |
727 | * | |
728 | * 1. checking the free pool for credits | |
729 | * 2. checking lower priority endpoints for credits to take | |
730 | */ | |
731 | ||
732 | credits = min(cred_info->cur_free_credits, ep_dist->seek_cred); | |
733 | ||
734 | if (credits >= ep_dist->seek_cred) | |
735 | goto out; | |
736 | ||
737 | /* | |
738 | * We don't have enough in the free pool, try taking away from | |
739 | * lower priority services The rule for taking away credits: | |
740 | * | |
741 | * 1. Only take from lower priority endpoints | |
742 | * 2. Only take what is allocated above the minimum (never | |
743 | * starve an endpoint completely) | |
744 | * 3. Only take what you need. | |
745 | */ | |
746 | ||
747 | list_for_each_entry_reverse(curdist_list, | |
748 | &cred_info->lowestpri_ep_dist, | |
749 | list) { | |
750 | if (curdist_list == ep_dist) | |
751 | break; | |
752 | ||
753 | need = ep_dist->seek_cred - cred_info->cur_free_credits; | |
754 | ||
755 | if ((curdist_list->cred_assngd - need) >= | |
756 | curdist_list->cred_min) { | |
757 | /* | |
758 | * The current one has been allocated more than | |
759 | * it's minimum and it has enough credits assigned | |
760 | * above it's minimum to fulfill our need try to | |
761 | * take away just enough to fulfill our need. | |
762 | */ | |
763 | ath6k_reduce_credits(cred_info, curdist_list, | |
764 | curdist_list->cred_assngd - need); | |
765 | ||
766 | if (cred_info->cur_free_credits >= | |
767 | ep_dist->seek_cred) | |
768 | break; | |
769 | } | |
770 | ||
771 | if (curdist_list->endpoint == ENDPOINT_0) | |
772 | break; | |
773 | } | |
774 | ||
775 | credits = min(cred_info->cur_free_credits, ep_dist->seek_cred); | |
776 | ||
777 | out: | |
778 | /* did we find some credits? */ | |
779 | if (credits) | |
780 | ath6kl_deposit_credit_to_ep(cred_info, ep_dist, credits); | |
781 | ||
782 | ep_dist->seek_cred = 0; | |
783 | } | |
784 | ||
785 | /* redistribute credits based on activity change */ | |
786 | static void ath6k_redistribute_credits(struct htc_credit_state_info *info, | |
787 | struct list_head *ep_dist_list) | |
788 | { | |
789 | struct htc_endpoint_credit_dist *curdist_list; | |
790 | ||
791 | list_for_each_entry(curdist_list, ep_dist_list, list) { | |
792 | if (curdist_list->endpoint == ENDPOINT_0) | |
793 | continue; | |
794 | ||
795 | if ((curdist_list->svc_id == WMI_DATA_BK_SVC) || | |
796 | (curdist_list->svc_id == WMI_DATA_BE_SVC)) | |
797 | curdist_list->dist_flags |= HTC_EP_ACTIVE; | |
798 | ||
799 | if ((curdist_list->svc_id != WMI_CONTROL_SVC) && | |
800 | !(curdist_list->dist_flags & HTC_EP_ACTIVE)) { | |
801 | if (curdist_list->txq_depth == 0) | |
802 | ath6k_reduce_credits(info, | |
803 | curdist_list, 0); | |
804 | else | |
805 | ath6k_reduce_credits(info, | |
806 | curdist_list, | |
807 | curdist_list->cred_min); | |
808 | } | |
809 | } | |
810 | } | |
811 | ||
812 | /* | |
813 | * | |
814 | * This function is invoked whenever endpoints require credit | |
815 | * distributions. A lock is held while this function is invoked, this | |
816 | * function shall NOT block. The ep_dist_list is a list of distribution | |
817 | * structures in prioritized order as defined by the call to the | |
818 | * htc_set_credit_dist() api. | |
819 | */ | |
820 | void ath6k_credit_distribute(struct htc_credit_state_info *cred_info, | |
821 | struct list_head *ep_dist_list, | |
822 | enum htc_credit_dist_reason reason) | |
823 | { | |
824 | switch (reason) { | |
825 | case HTC_CREDIT_DIST_SEND_COMPLETE: | |
826 | ath6k_credit_update(cred_info, ep_dist_list); | |
827 | break; | |
828 | case HTC_CREDIT_DIST_ACTIVITY_CHANGE: | |
829 | ath6k_redistribute_credits(cred_info, ep_dist_list); | |
830 | break; | |
831 | default: | |
832 | break; | |
833 | } | |
834 | ||
835 | WARN_ON(cred_info->cur_free_credits > cred_info->total_avail_credits); | |
836 | WARN_ON(cred_info->cur_free_credits < 0); | |
837 | } | |
838 | ||
839 | void disconnect_timer_handler(unsigned long ptr) | |
840 | { | |
841 | struct net_device *dev = (struct net_device *)ptr; | |
334234b5 | 842 | struct ath6kl_vif *vif = netdev_priv(dev); |
bdcd8170 | 843 | |
e29f25f5 | 844 | ath6kl_init_profile_info(vif); |
240d2799 | 845 | ath6kl_disconnect(vif); |
bdcd8170 KV |
846 | } |
847 | ||
240d2799 | 848 | void ath6kl_disconnect(struct ath6kl_vif *vif) |
bdcd8170 | 849 | { |
59c98449 VT |
850 | if (test_bit(CONNECTED, &vif->flags) || |
851 | test_bit(CONNECT_PEND, &vif->flags)) { | |
240d2799 | 852 | ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); |
bdcd8170 KV |
853 | /* |
854 | * Disconnect command is issued, clear the connect pending | |
855 | * flag. The connected flag will be cleared in | |
856 | * disconnect event notification. | |
857 | */ | |
59c98449 | 858 | clear_bit(CONNECT_PEND, &vif->flags); |
bdcd8170 KV |
859 | } |
860 | } | |
861 | ||
abcb344b KV |
862 | void ath6kl_deep_sleep_enable(struct ath6kl *ar) |
863 | { | |
59c98449 VT |
864 | /* TODO: Pass vif instead of taking it from ar */ |
865 | struct ath6kl_vif *vif = ar->vif; | |
866 | ||
14ee6f6b | 867 | switch (vif->sme_state) { |
abcb344b | 868 | case SME_CONNECTING: |
28ae58dd | 869 | cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0, |
abcb344b KV |
870 | NULL, 0, |
871 | WLAN_STATUS_UNSPECIFIED_FAILURE, | |
872 | GFP_KERNEL); | |
873 | break; | |
874 | case SME_CONNECTED: | |
875 | default: | |
876 | /* | |
877 | * FIXME: oddly enough smeState is in DISCONNECTED during | |
878 | * suspend, why? Need to send disconnected event in that | |
879 | * state. | |
880 | */ | |
28ae58dd | 881 | cfg80211_disconnected(vif->ndev, 0, NULL, 0, GFP_KERNEL); |
abcb344b KV |
882 | break; |
883 | } | |
884 | ||
59c98449 VT |
885 | if (test_bit(CONNECTED, &vif->flags) || |
886 | test_bit(CONNECT_PEND, &vif->flags)) | |
334234b5 | 887 | ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); |
abcb344b | 888 | |
14ee6f6b | 889 | vif->sme_state = SME_DISCONNECTED; |
abcb344b KV |
890 | |
891 | /* disable scanning */ | |
334234b5 VT |
892 | if (ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0xFFFF, 0, 0, |
893 | 0, 0, 0, 0, 0, 0, 0) != 0) | |
abcb344b KV |
894 | printk(KERN_WARNING "ath6kl: failed to disable scan " |
895 | "during suspend\n"); | |
896 | ||
240d2799 | 897 | ath6kl_cfg80211_scan_complete_event(vif, -ECANCELED); |
aa6cffc1 CN |
898 | |
899 | /* save the current power mode before enabling power save */ | |
900 | ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; | |
901 | ||
334234b5 | 902 | if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0) |
aa6cffc1 CN |
903 | ath6kl_warn("ath6kl_deep_sleep_enable: " |
904 | "wmi_powermode_cmd failed\n"); | |
abcb344b KV |
905 | } |
906 | ||
bdcd8170 KV |
907 | /* WMI Event handlers */ |
908 | ||
909 | static const char *get_hw_id_string(u32 id) | |
910 | { | |
911 | switch (id) { | |
912 | case AR6003_REV1_VERSION: | |
913 | return "1.0"; | |
914 | case AR6003_REV2_VERSION: | |
915 | return "2.0"; | |
916 | case AR6003_REV3_VERSION: | |
917 | return "2.1.1"; | |
918 | default: | |
919 | return "unknown"; | |
920 | } | |
921 | } | |
922 | ||
923 | void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver) | |
924 | { | |
925 | struct ath6kl *ar = devt; | |
bdcd8170 | 926 | |
d66ea4f9 | 927 | memcpy(ar->mac_addr, datap, ETH_ALEN); |
bdcd8170 | 928 | ath6kl_dbg(ATH6KL_DBG_TRC, "%s: mac addr = %pM\n", |
d66ea4f9 | 929 | __func__, ar->mac_addr); |
bdcd8170 KV |
930 | |
931 | ar->version.wlan_ver = sw_ver; | |
932 | ar->version.abi_ver = abi_ver; | |
933 | ||
be98e3a4 VT |
934 | snprintf(ar->wiphy->fw_version, |
935 | sizeof(ar->wiphy->fw_version), | |
bdcd8170 KV |
936 | "%u.%u.%u.%u", |
937 | (ar->version.wlan_ver & 0xf0000000) >> 28, | |
938 | (ar->version.wlan_ver & 0x0f000000) >> 24, | |
939 | (ar->version.wlan_ver & 0x00ff0000) >> 16, | |
940 | (ar->version.wlan_ver & 0x0000ffff)); | |
941 | ||
942 | /* indicate to the waiting thread that the ready event was received */ | |
943 | set_bit(WMI_READY, &ar->flag); | |
944 | wake_up(&ar->event_wq); | |
945 | ||
003353b0 | 946 | ath6kl_info("hw %s fw %s%s\n", |
be98e3a4 VT |
947 | get_hw_id_string(ar->wiphy->hw_version), |
948 | ar->wiphy->fw_version, | |
003353b0 | 949 | test_bit(TESTMODE, &ar->flag) ? " testmode" : ""); |
bdcd8170 KV |
950 | } |
951 | ||
240d2799 | 952 | void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status) |
bdcd8170 | 953 | { |
240d2799 | 954 | struct ath6kl *ar = vif->ar; |
59c98449 | 955 | |
240d2799 | 956 | ath6kl_cfg80211_scan_complete_event(vif, status); |
bdcd8170 | 957 | |
551185ca | 958 | if (!ar->usr_bss_filter) { |
59c98449 | 959 | clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); |
240d2799 VT |
960 | ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, |
961 | NONE_BSS_FILTER, 0); | |
551185ca | 962 | } |
bdcd8170 KV |
963 | |
964 | ath6kl_dbg(ATH6KL_DBG_WLAN_SCAN, "scan complete: %d\n", status); | |
965 | } | |
966 | ||
240d2799 | 967 | void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid, |
bdcd8170 KV |
968 | u16 listen_int, u16 beacon_int, |
969 | enum network_type net_type, u8 beacon_ie_len, | |
970 | u8 assoc_req_len, u8 assoc_resp_len, | |
971 | u8 *assoc_info) | |
972 | { | |
240d2799 | 973 | struct ath6kl *ar = vif->ar; |
59c98449 | 974 | |
240d2799 | 975 | ath6kl_cfg80211_connect_event(vif, channel, bssid, |
bdcd8170 KV |
976 | listen_int, beacon_int, |
977 | net_type, beacon_ie_len, | |
978 | assoc_req_len, assoc_resp_len, | |
979 | assoc_info); | |
980 | ||
8c8b65e3 | 981 | memcpy(vif->bssid, bssid, sizeof(vif->bssid)); |
f74bac54 | 982 | vif->bss_ch = channel; |
bdcd8170 | 983 | |
f5938f24 | 984 | if ((vif->nw_type == INFRA_NETWORK)) |
334234b5 VT |
985 | ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, |
986 | ar->listen_intvl_t, | |
bdcd8170 KV |
987 | ar->listen_intvl_b); |
988 | ||
240d2799 | 989 | netif_wake_queue(vif->ndev); |
bdcd8170 KV |
990 | |
991 | /* Update connect & link status atomically */ | |
151bd30b | 992 | spin_lock_bh(&ar->lock); |
59c98449 VT |
993 | set_bit(CONNECTED, &vif->flags); |
994 | clear_bit(CONNECT_PEND, &vif->flags); | |
240d2799 | 995 | netif_carrier_on(vif->ndev); |
151bd30b | 996 | spin_unlock_bh(&ar->lock); |
bdcd8170 | 997 | |
2132c69c | 998 | aggr_reset_state(vif->aggr_cntxt); |
cf5333d7 | 999 | vif->reconnect_flag = 0; |
bdcd8170 | 1000 | |
f5938f24 | 1001 | if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) { |
bdcd8170 KV |
1002 | memset(ar->node_map, 0, sizeof(ar->node_map)); |
1003 | ar->node_num = 0; | |
1004 | ar->next_ep_id = ENDPOINT_2; | |
1005 | } | |
1006 | ||
551185ca | 1007 | if (!ar->usr_bss_filter) { |
59c98449 | 1008 | set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); |
240d2799 VT |
1009 | ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, |
1010 | CURRENT_BSS_FILTER, 0); | |
551185ca | 1011 | } |
bdcd8170 KV |
1012 | } |
1013 | ||
240d2799 | 1014 | void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast) |
bdcd8170 KV |
1015 | { |
1016 | struct ath6kl_sta *sta; | |
240d2799 | 1017 | struct ath6kl *ar = vif->ar; |
bdcd8170 | 1018 | u8 tsc[6]; |
240d2799 | 1019 | |
bdcd8170 KV |
1020 | /* |
1021 | * For AP case, keyid will have aid of STA which sent pkt with | |
1022 | * MIC error. Use this aid to get MAC & send it to hostapd. | |
1023 | */ | |
f5938f24 | 1024 | if (vif->nw_type == AP_NETWORK) { |
bdcd8170 KV |
1025 | sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2)); |
1026 | if (!sta) | |
1027 | return; | |
1028 | ||
1029 | ath6kl_dbg(ATH6KL_DBG_TRC, | |
1030 | "ap tkip mic error received from aid=%d\n", keyid); | |
1031 | ||
1032 | memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */ | |
240d2799 | 1033 | cfg80211_michael_mic_failure(vif->ndev, sta->mac, |
bdcd8170 KV |
1034 | NL80211_KEYTYPE_PAIRWISE, keyid, |
1035 | tsc, GFP_KERNEL); | |
1036 | } else | |
240d2799 | 1037 | ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast); |
bdcd8170 KV |
1038 | |
1039 | } | |
1040 | ||
240d2799 | 1041 | static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len) |
bdcd8170 KV |
1042 | { |
1043 | struct wmi_target_stats *tgt_stats = | |
1044 | (struct wmi_target_stats *) ptr; | |
240d2799 | 1045 | struct ath6kl *ar = vif->ar; |
b95907a7 | 1046 | struct target_stats *stats = &vif->target_stats; |
bdcd8170 | 1047 | struct tkip_ccmp_stats *ccmp_stats; |
bdcd8170 KV |
1048 | u8 ac; |
1049 | ||
1050 | if (len < sizeof(*tgt_stats)) | |
1051 | return; | |
1052 | ||
bdcd8170 KV |
1053 | ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n"); |
1054 | ||
1055 | stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt); | |
1056 | stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte); | |
1057 | stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt); | |
1058 | stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte); | |
1059 | stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt); | |
1060 | stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte); | |
1061 | stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt); | |
1062 | stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte); | |
1063 | stats->tx_rts_success_cnt += | |
1064 | le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt); | |
1065 | ||
1066 | for (ac = 0; ac < WMM_NUM_AC; ac++) | |
1067 | stats->tx_pkt_per_ac[ac] += | |
1068 | le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]); | |
1069 | ||
1070 | stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err); | |
1071 | stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt); | |
1072 | stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt); | |
1073 | stats->tx_mult_retry_cnt += | |
1074 | le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt); | |
1075 | stats->tx_rts_fail_cnt += | |
1076 | le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt); | |
1077 | stats->tx_ucast_rate = | |
1078 | ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate)); | |
1079 | ||
1080 | stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt); | |
1081 | stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte); | |
1082 | stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt); | |
1083 | stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte); | |
1084 | stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt); | |
1085 | stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte); | |
1086 | stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt); | |
1087 | stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte); | |
1088 | stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt); | |
1089 | stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err); | |
1090 | stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err); | |
1091 | stats->rx_key_cache_miss += | |
1092 | le32_to_cpu(tgt_stats->stats.rx.key_cache_miss); | |
1093 | stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err); | |
1094 | stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame); | |
1095 | stats->rx_ucast_rate = | |
1096 | ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate)); | |
1097 | ||
1098 | ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats; | |
1099 | ||
1100 | stats->tkip_local_mic_fail += | |
1101 | le32_to_cpu(ccmp_stats->tkip_local_mic_fail); | |
1102 | stats->tkip_cnter_measures_invoked += | |
1103 | le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked); | |
1104 | stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err); | |
1105 | ||
1106 | stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err); | |
1107 | stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays); | |
1108 | ||
1109 | stats->pwr_save_fail_cnt += | |
1110 | le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt); | |
1111 | stats->noise_floor_calib = | |
1112 | a_sle32_to_cpu(tgt_stats->noise_floor_calib); | |
1113 | ||
1114 | stats->cs_bmiss_cnt += | |
1115 | le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt); | |
1116 | stats->cs_low_rssi_cnt += | |
1117 | le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt); | |
1118 | stats->cs_connect_cnt += | |
1119 | le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt); | |
1120 | stats->cs_discon_cnt += | |
1121 | le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt); | |
1122 | ||
1123 | stats->cs_ave_beacon_rssi = | |
1124 | a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi); | |
1125 | ||
1126 | stats->cs_last_roam_msec = | |
1127 | tgt_stats->cserv_stats.cs_last_roam_msec; | |
1128 | stats->cs_snr = tgt_stats->cserv_stats.cs_snr; | |
1129 | stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi); | |
1130 | ||
1131 | stats->lq_val = le32_to_cpu(tgt_stats->lq_val); | |
1132 | ||
1133 | stats->wow_pkt_dropped += | |
1134 | le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped); | |
1135 | stats->wow_host_pkt_wakeups += | |
1136 | tgt_stats->wow_stats.wow_host_pkt_wakeups; | |
1137 | stats->wow_host_evt_wakeups += | |
1138 | tgt_stats->wow_stats.wow_host_evt_wakeups; | |
1139 | stats->wow_evt_discarded += | |
1140 | le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded); | |
1141 | ||
b95907a7 VT |
1142 | if (test_bit(STATS_UPDATE_PEND, &vif->flags)) { |
1143 | clear_bit(STATS_UPDATE_PEND, &vif->flags); | |
bdcd8170 KV |
1144 | wake_up(&ar->event_wq); |
1145 | } | |
1146 | } | |
1147 | ||
1148 | static void ath6kl_add_le32(__le32 *var, __le32 val) | |
1149 | { | |
1150 | *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val)); | |
1151 | } | |
1152 | ||
240d2799 | 1153 | void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len) |
bdcd8170 KV |
1154 | { |
1155 | struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr; | |
240d2799 | 1156 | struct ath6kl *ar = vif->ar; |
bdcd8170 KV |
1157 | struct wmi_ap_mode_stat *ap = &ar->ap_stats; |
1158 | struct wmi_per_sta_stat *st_ap, *st_p; | |
1159 | u8 ac; | |
1160 | ||
f5938f24 | 1161 | if (vif->nw_type == AP_NETWORK) { |
bdcd8170 KV |
1162 | if (len < sizeof(*p)) |
1163 | return; | |
1164 | ||
1165 | for (ac = 0; ac < AP_MAX_NUM_STA; ac++) { | |
1166 | st_ap = &ap->sta[ac]; | |
1167 | st_p = &p->sta[ac]; | |
1168 | ||
1169 | ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes); | |
1170 | ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts); | |
1171 | ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error); | |
1172 | ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard); | |
1173 | ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes); | |
1174 | ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts); | |
1175 | ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error); | |
1176 | ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard); | |
1177 | } | |
1178 | ||
1179 | } else { | |
240d2799 | 1180 | ath6kl_update_target_stats(vif, ptr, len); |
bdcd8170 KV |
1181 | } |
1182 | } | |
1183 | ||
1184 | void ath6kl_wakeup_event(void *dev) | |
1185 | { | |
1186 | struct ath6kl *ar = (struct ath6kl *) dev; | |
1187 | ||
1188 | wake_up(&ar->event_wq); | |
1189 | } | |
1190 | ||
1191 | void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr) | |
1192 | { | |
1193 | struct ath6kl *ar = (struct ath6kl *) devt; | |
1194 | ||
1195 | ar->tx_pwr = tx_pwr; | |
1196 | wake_up(&ar->event_wq); | |
1197 | } | |
1198 | ||
240d2799 | 1199 | void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid) |
bdcd8170 KV |
1200 | { |
1201 | struct ath6kl_sta *conn; | |
1202 | struct sk_buff *skb; | |
1203 | bool psq_empty = false; | |
240d2799 | 1204 | struct ath6kl *ar = vif->ar; |
bdcd8170 KV |
1205 | |
1206 | conn = ath6kl_find_sta_by_aid(ar, aid); | |
1207 | ||
1208 | if (!conn) | |
1209 | return; | |
1210 | /* | |
1211 | * Send out a packet queued on ps queue. When the ps queue | |
1212 | * becomes empty update the PVB for this station. | |
1213 | */ | |
1214 | spin_lock_bh(&conn->psq_lock); | |
1215 | psq_empty = skb_queue_empty(&conn->psq); | |
1216 | spin_unlock_bh(&conn->psq_lock); | |
1217 | ||
1218 | if (psq_empty) | |
1219 | /* TODO: Send out a NULL data frame */ | |
1220 | return; | |
1221 | ||
1222 | spin_lock_bh(&conn->psq_lock); | |
1223 | skb = skb_dequeue(&conn->psq); | |
1224 | spin_unlock_bh(&conn->psq_lock); | |
1225 | ||
1226 | conn->sta_flags |= STA_PS_POLLED; | |
240d2799 | 1227 | ath6kl_data_tx(skb, vif->ndev); |
bdcd8170 KV |
1228 | conn->sta_flags &= ~STA_PS_POLLED; |
1229 | ||
1230 | spin_lock_bh(&conn->psq_lock); | |
1231 | psq_empty = skb_queue_empty(&conn->psq); | |
1232 | spin_unlock_bh(&conn->psq_lock); | |
1233 | ||
1234 | if (psq_empty) | |
334234b5 | 1235 | ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0); |
bdcd8170 KV |
1236 | } |
1237 | ||
240d2799 | 1238 | void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif) |
bdcd8170 KV |
1239 | { |
1240 | bool mcastq_empty = false; | |
1241 | struct sk_buff *skb; | |
240d2799 | 1242 | struct ath6kl *ar = vif->ar; |
bdcd8170 KV |
1243 | |
1244 | /* | |
1245 | * If there are no associated STAs, ignore the DTIM expiry event. | |
1246 | * There can be potential race conditions where the last associated | |
1247 | * STA may disconnect & before the host could clear the 'Indicate | |
1248 | * DTIM' request to the firmware, the firmware would have just | |
1249 | * indicated a DTIM expiry event. The race is between 'clear DTIM | |
1250 | * expiry cmd' going from the host to the firmware & the DTIM | |
1251 | * expiry event happening from the firmware to the host. | |
1252 | */ | |
1253 | if (!ar->sta_list_index) | |
1254 | return; | |
1255 | ||
1256 | spin_lock_bh(&ar->mcastpsq_lock); | |
1257 | mcastq_empty = skb_queue_empty(&ar->mcastpsq); | |
1258 | spin_unlock_bh(&ar->mcastpsq_lock); | |
1259 | ||
1260 | if (mcastq_empty) | |
1261 | return; | |
1262 | ||
1263 | /* set the STA flag to dtim_expired for the frame to go out */ | |
59c98449 | 1264 | set_bit(DTIM_EXPIRED, &vif->flags); |
bdcd8170 KV |
1265 | |
1266 | spin_lock_bh(&ar->mcastpsq_lock); | |
1267 | while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) { | |
1268 | spin_unlock_bh(&ar->mcastpsq_lock); | |
1269 | ||
240d2799 | 1270 | ath6kl_data_tx(skb, vif->ndev); |
bdcd8170 KV |
1271 | |
1272 | spin_lock_bh(&ar->mcastpsq_lock); | |
1273 | } | |
1274 | spin_unlock_bh(&ar->mcastpsq_lock); | |
1275 | ||
59c98449 | 1276 | clear_bit(DTIM_EXPIRED, &vif->flags); |
bdcd8170 KV |
1277 | |
1278 | /* clear the LSB of the BitMapCtl field of the TIM IE */ | |
334234b5 | 1279 | ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0); |
bdcd8170 KV |
1280 | } |
1281 | ||
240d2799 | 1282 | void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid, |
bdcd8170 KV |
1283 | u8 assoc_resp_len, u8 *assoc_info, |
1284 | u16 prot_reason_status) | |
1285 | { | |
240d2799 | 1286 | struct ath6kl *ar = vif->ar; |
59c98449 | 1287 | |
f5938f24 | 1288 | if (vif->nw_type == AP_NETWORK) { |
bdcd8170 KV |
1289 | if (!ath6kl_remove_sta(ar, bssid, prot_reason_status)) |
1290 | return; | |
1291 | ||
1292 | /* if no more associated STAs, empty the mcast PS q */ | |
1293 | if (ar->sta_list_index == 0) { | |
1294 | spin_lock_bh(&ar->mcastpsq_lock); | |
1295 | skb_queue_purge(&ar->mcastpsq); | |
1296 | spin_unlock_bh(&ar->mcastpsq_lock); | |
1297 | ||
1298 | /* clear the LSB of the TIM IE's BitMapCtl field */ | |
1299 | if (test_bit(WMI_READY, &ar->flag)) | |
334234b5 VT |
1300 | ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, |
1301 | MCAST_AID, 0); | |
bdcd8170 KV |
1302 | } |
1303 | ||
1304 | if (!is_broadcast_ether_addr(bssid)) { | |
1305 | /* send event to application */ | |
240d2799 | 1306 | cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL); |
bdcd8170 KV |
1307 | } |
1308 | ||
240d2799 | 1309 | if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) { |
6f2a73f9 | 1310 | memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list)); |
59c98449 | 1311 | clear_bit(CONNECTED, &vif->flags); |
151411e8 | 1312 | } |
bdcd8170 KV |
1313 | return; |
1314 | } | |
1315 | ||
240d2799 | 1316 | ath6kl_cfg80211_disconnect_event(vif, reason, bssid, |
bdcd8170 KV |
1317 | assoc_resp_len, assoc_info, |
1318 | prot_reason_status); | |
1319 | ||
2132c69c | 1320 | aggr_reset_state(vif->aggr_cntxt); |
bdcd8170 | 1321 | |
de3ad713 | 1322 | del_timer(&vif->disconnect_timer); |
bdcd8170 KV |
1323 | |
1324 | ath6kl_dbg(ATH6KL_DBG_WLAN_CONNECT, | |
1325 | "disconnect reason is %d\n", reason); | |
1326 | ||
1327 | /* | |
1328 | * If the event is due to disconnect cmd from the host, only they | |
1329 | * the target would stop trying to connect. Under any other | |
1330 | * condition, target would keep trying to connect. | |
1331 | */ | |
1332 | if (reason == DISCONNECT_CMD) { | |
1333 | if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag)) | |
240d2799 VT |
1334 | ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, |
1335 | NONE_BSS_FILTER, 0); | |
bdcd8170 | 1336 | } else { |
59c98449 | 1337 | set_bit(CONNECT_PEND, &vif->flags); |
bdcd8170 KV |
1338 | if (((reason == ASSOC_FAILED) && |
1339 | (prot_reason_status == 0x11)) || | |
1340 | ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0) | |
cf5333d7 | 1341 | && (vif->reconnect_flag == 1))) { |
59c98449 | 1342 | set_bit(CONNECTED, &vif->flags); |
bdcd8170 KV |
1343 | return; |
1344 | } | |
1345 | } | |
1346 | ||
bdcd8170 | 1347 | /* update connect & link status atomically */ |
151bd30b | 1348 | spin_lock_bh(&ar->lock); |
59c98449 | 1349 | clear_bit(CONNECTED, &vif->flags); |
240d2799 | 1350 | netif_carrier_off(vif->ndev); |
151bd30b | 1351 | spin_unlock_bh(&ar->lock); |
bdcd8170 | 1352 | |
cf5333d7 VT |
1353 | if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1)) |
1354 | vif->reconnect_flag = 0; | |
bdcd8170 KV |
1355 | |
1356 | if (reason != CSERV_DISCONNECT) | |
1357 | ar->user_key_ctrl = 0; | |
1358 | ||
240d2799 | 1359 | netif_stop_queue(vif->ndev); |
8c8b65e3 | 1360 | memset(vif->bssid, 0, sizeof(vif->bssid)); |
f74bac54 | 1361 | vif->bss_ch = 0; |
bdcd8170 KV |
1362 | |
1363 | ath6kl_tx_data_cleanup(ar); | |
1364 | } | |
1365 | ||
1366 | static int ath6kl_open(struct net_device *dev) | |
1367 | { | |
1368 | struct ath6kl *ar = ath6kl_priv(dev); | |
59c98449 | 1369 | struct ath6kl_vif *vif = netdev_priv(dev); |
bdcd8170 | 1370 | |
151bd30b | 1371 | spin_lock_bh(&ar->lock); |
bdcd8170 | 1372 | |
59c98449 | 1373 | set_bit(WLAN_ENABLED, &vif->flags); |
bdcd8170 | 1374 | |
59c98449 | 1375 | if (test_bit(CONNECTED, &vif->flags)) { |
bdcd8170 KV |
1376 | netif_carrier_on(dev); |
1377 | netif_wake_queue(dev); | |
1378 | } else | |
1379 | netif_carrier_off(dev); | |
1380 | ||
151bd30b | 1381 | spin_unlock_bh(&ar->lock); |
bdcd8170 KV |
1382 | |
1383 | return 0; | |
1384 | } | |
1385 | ||
1386 | static int ath6kl_close(struct net_device *dev) | |
1387 | { | |
1388 | struct ath6kl *ar = ath6kl_priv(dev); | |
59c98449 | 1389 | struct ath6kl_vif *vif = netdev_priv(dev); |
bdcd8170 KV |
1390 | |
1391 | netif_stop_queue(dev); | |
1392 | ||
240d2799 | 1393 | ath6kl_disconnect(vif); |
bdcd8170 KV |
1394 | |
1395 | if (test_bit(WMI_READY, &ar->flag)) { | |
334234b5 VT |
1396 | if (ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0xFFFF, |
1397 | 0, 0, 0, 0, 0, 0, 0, 0, 0)) | |
bdcd8170 KV |
1398 | return -EIO; |
1399 | ||
59c98449 | 1400 | clear_bit(WLAN_ENABLED, &vif->flags); |
bdcd8170 KV |
1401 | } |
1402 | ||
240d2799 | 1403 | ath6kl_cfg80211_scan_complete_event(vif, -ECANCELED); |
bdcd8170 KV |
1404 | |
1405 | return 0; | |
1406 | } | |
1407 | ||
1408 | static struct net_device_stats *ath6kl_get_stats(struct net_device *dev) | |
1409 | { | |
b95907a7 | 1410 | struct ath6kl_vif *vif = netdev_priv(dev); |
bdcd8170 | 1411 | |
b95907a7 | 1412 | return &vif->net_stats; |
bdcd8170 KV |
1413 | } |
1414 | ||
1415 | static struct net_device_ops ath6kl_netdev_ops = { | |
1416 | .ndo_open = ath6kl_open, | |
1417 | .ndo_stop = ath6kl_close, | |
1418 | .ndo_start_xmit = ath6kl_data_tx, | |
1419 | .ndo_get_stats = ath6kl_get_stats, | |
1420 | }; | |
1421 | ||
1422 | void init_netdev(struct net_device *dev) | |
1423 | { | |
1424 | dev->netdev_ops = &ath6kl_netdev_ops; | |
1425 | dev->watchdog_timeo = ATH6KL_TX_TIMEOUT; | |
1426 | ||
1427 | dev->needed_headroom = ETH_HLEN; | |
1428 | dev->needed_headroom += sizeof(struct ath6kl_llc_snap_hdr) + | |
1429 | sizeof(struct wmi_data_hdr) + HTC_HDR_LENGTH | |
1df94a85 | 1430 | + WMI_MAX_TX_META_SZ + ATH6KL_HTC_ALIGN_BYTES; |
bdcd8170 KV |
1431 | |
1432 | return; | |
1433 | } |