Commit | Line | Data |
---|---|---|
cd2c5486 BR |
1 | /*- |
2 | * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting | |
3 | * Copyright (c) 2004-2005 Atheros Communications, Inc. | |
4 | * Copyright (c) 2006 Devicescape Software, Inc. | |
5 | * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com> | |
6 | * Copyright (c) 2007 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu> | |
7 | * Copyright (c) 2010 Bruno Randolf <br1@einfach.org> | |
8 | * | |
9 | * All rights reserved. | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or without | |
12 | * modification, are permitted provided that the following conditions | |
13 | * are met: | |
14 | * 1. Redistributions of source code must retain the above copyright | |
15 | * notice, this list of conditions and the following disclaimer, | |
16 | * without modification. | |
17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | |
18 | * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any | |
19 | * redistribution must be conditioned upon including a substantially | |
20 | * similar Disclaimer requirement for further binary redistribution. | |
21 | * 3. Neither the names of the above-listed copyright holders nor the names | |
22 | * of any contributors may be used to endorse or promote products derived | |
23 | * from this software without specific prior written permission. | |
24 | * | |
25 | * Alternatively, this software may be distributed under the terms of the | |
26 | * GNU General Public License ("GPL") version 2 as published by the Free | |
27 | * Software Foundation. | |
28 | * | |
29 | * NO WARRANTY | |
30 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
31 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
32 | * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY | |
33 | * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL | |
34 | * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, | |
35 | * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
36 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
37 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER | |
38 | * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
39 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |
40 | * THE POSSIBILITY OF SUCH DAMAGES. | |
41 | * | |
42 | */ | |
43 | ||
516304b0 JP |
44 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
45 | ||
931be260 | 46 | #include <net/mac80211.h> |
cd2c5486 BR |
47 | #include <asm/unaligned.h> |
48 | ||
931be260 | 49 | #include "ath5k.h" |
cd2c5486 BR |
50 | #include "base.h" |
51 | #include "reg.h" | |
52 | ||
cd2c5486 BR |
53 | /********************\ |
54 | * Mac80211 functions * | |
55 | \********************/ | |
56 | ||
7bb45683 | 57 | static void |
36323f81 TH |
58 | ath5k_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control, |
59 | struct sk_buff *skb) | |
cd2c5486 | 60 | { |
e0d687bd | 61 | struct ath5k_hw *ah = hw->priv; |
cd2c5486 BR |
62 | u16 qnum = skb_get_queue_mapping(skb); |
63 | ||
e0d687bd | 64 | if (WARN_ON(qnum >= ah->ah_capabilities.cap_queues.q_tx_num)) { |
596ab5ec | 65 | ieee80211_free_txskb(hw, skb); |
7bb45683 | 66 | return; |
cd2c5486 BR |
67 | } |
68 | ||
0967e01e | 69 | ath5k_tx_queue(hw, skb, &ah->txqs[qnum], control); |
cd2c5486 BR |
70 | } |
71 | ||
72 | ||
cd2c5486 BR |
73 | static int |
74 | ath5k_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) | |
75 | { | |
e0d687bd | 76 | struct ath5k_hw *ah = hw->priv; |
cd2c5486 BR |
77 | int ret; |
78 | struct ath5k_vif *avf = (void *)vif->drv_priv; | |
79 | ||
e0d687bd | 80 | mutex_lock(&ah->lock); |
cd2c5486 BR |
81 | |
82 | if ((vif->type == NL80211_IFTYPE_AP || | |
83 | vif->type == NL80211_IFTYPE_ADHOC) | |
e0d687bd | 84 | && (ah->num_ap_vifs + ah->num_adhoc_vifs) >= ATH_BCBUF) { |
cd2c5486 BR |
85 | ret = -ELNRNG; |
86 | goto end; | |
87 | } | |
88 | ||
89 | /* Don't allow other interfaces if one ad-hoc is configured. | |
90 | * TODO: Fix the problems with ad-hoc and multiple other interfaces. | |
91 | * We would need to operate the HW in ad-hoc mode to allow TSF updates | |
92 | * for the IBSS, but this breaks with additional AP or STA interfaces | |
93 | * at the moment. */ | |
e0d687bd PR |
94 | if (ah->num_adhoc_vifs || |
95 | (ah->nvifs && vif->type == NL80211_IFTYPE_ADHOC)) { | |
96 | ATH5K_ERR(ah, "Only one single ad-hoc interface is allowed.\n"); | |
cd2c5486 BR |
97 | ret = -ELNRNG; |
98 | goto end; | |
99 | } | |
100 | ||
101 | switch (vif->type) { | |
102 | case NL80211_IFTYPE_AP: | |
103 | case NL80211_IFTYPE_STATION: | |
104 | case NL80211_IFTYPE_ADHOC: | |
105 | case NL80211_IFTYPE_MESH_POINT: | |
106 | avf->opmode = vif->type; | |
107 | break; | |
108 | default: | |
109 | ret = -EOPNOTSUPP; | |
110 | goto end; | |
111 | } | |
112 | ||
e0d687bd PR |
113 | ah->nvifs++; |
114 | ATH5K_DBG(ah, ATH5K_DEBUG_MODE, "add interface mode %d\n", avf->opmode); | |
cd2c5486 BR |
115 | |
116 | /* Assign the vap/adhoc to a beacon xmit slot. */ | |
117 | if ((avf->opmode == NL80211_IFTYPE_AP) || | |
118 | (avf->opmode == NL80211_IFTYPE_ADHOC) || | |
119 | (avf->opmode == NL80211_IFTYPE_MESH_POINT)) { | |
120 | int slot; | |
121 | ||
e0d687bd PR |
122 | WARN_ON(list_empty(&ah->bcbuf)); |
123 | avf->bbuf = list_first_entry(&ah->bcbuf, struct ath5k_buf, | |
cd2c5486 BR |
124 | list); |
125 | list_del(&avf->bbuf->list); | |
126 | ||
127 | avf->bslot = 0; | |
128 | for (slot = 0; slot < ATH_BCBUF; slot++) { | |
e0d687bd | 129 | if (!ah->bslot[slot]) { |
cd2c5486 BR |
130 | avf->bslot = slot; |
131 | break; | |
132 | } | |
133 | } | |
e0d687bd PR |
134 | BUG_ON(ah->bslot[avf->bslot] != NULL); |
135 | ah->bslot[avf->bslot] = vif; | |
cd2c5486 | 136 | if (avf->opmode == NL80211_IFTYPE_AP) |
e0d687bd | 137 | ah->num_ap_vifs++; |
cd2c5486 | 138 | else if (avf->opmode == NL80211_IFTYPE_ADHOC) |
e0d687bd | 139 | ah->num_adhoc_vifs++; |
da473b61 CYY |
140 | else if (avf->opmode == NL80211_IFTYPE_MESH_POINT) |
141 | ah->num_mesh_vifs++; | |
cd2c5486 BR |
142 | } |
143 | ||
144 | /* Any MAC address is fine, all others are included through the | |
145 | * filter. | |
146 | */ | |
e0d687bd | 147 | ath5k_hw_set_lladdr(ah, vif->addr); |
cd2c5486 | 148 | |
e0d687bd | 149 | ath5k_update_bssid_mask_and_opmode(ah, vif); |
cd2c5486 BR |
150 | ret = 0; |
151 | end: | |
e0d687bd | 152 | mutex_unlock(&ah->lock); |
cd2c5486 BR |
153 | return ret; |
154 | } | |
155 | ||
156 | ||
157 | static void | |
158 | ath5k_remove_interface(struct ieee80211_hw *hw, | |
159 | struct ieee80211_vif *vif) | |
160 | { | |
e0d687bd | 161 | struct ath5k_hw *ah = hw->priv; |
cd2c5486 BR |
162 | struct ath5k_vif *avf = (void *)vif->drv_priv; |
163 | unsigned int i; | |
164 | ||
e0d687bd PR |
165 | mutex_lock(&ah->lock); |
166 | ah->nvifs--; | |
cd2c5486 BR |
167 | |
168 | if (avf->bbuf) { | |
e0d687bd PR |
169 | ath5k_txbuf_free_skb(ah, avf->bbuf); |
170 | list_add_tail(&avf->bbuf->list, &ah->bcbuf); | |
cd2c5486 | 171 | for (i = 0; i < ATH_BCBUF; i++) { |
e0d687bd PR |
172 | if (ah->bslot[i] == vif) { |
173 | ah->bslot[i] = NULL; | |
cd2c5486 BR |
174 | break; |
175 | } | |
176 | } | |
177 | avf->bbuf = NULL; | |
178 | } | |
179 | if (avf->opmode == NL80211_IFTYPE_AP) | |
e0d687bd | 180 | ah->num_ap_vifs--; |
cd2c5486 | 181 | else if (avf->opmode == NL80211_IFTYPE_ADHOC) |
e0d687bd | 182 | ah->num_adhoc_vifs--; |
da473b61 CYY |
183 | else if (avf->opmode == NL80211_IFTYPE_MESH_POINT) |
184 | ah->num_mesh_vifs--; | |
cd2c5486 | 185 | |
e0d687bd PR |
186 | ath5k_update_bssid_mask_and_opmode(ah, NULL); |
187 | mutex_unlock(&ah->lock); | |
cd2c5486 BR |
188 | } |
189 | ||
190 | ||
191 | /* | |
192 | * TODO: Phy disable/diversity etc | |
193 | */ | |
194 | static int | |
195 | ath5k_config(struct ieee80211_hw *hw, u32 changed) | |
196 | { | |
e0d687bd | 197 | struct ath5k_hw *ah = hw->priv; |
cd2c5486 BR |
198 | struct ieee80211_conf *conf = &hw->conf; |
199 | int ret = 0; | |
76a9f6fd | 200 | int i; |
cd2c5486 | 201 | |
e0d687bd | 202 | mutex_lock(&ah->lock); |
cd2c5486 BR |
203 | |
204 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { | |
675a0b04 | 205 | ret = ath5k_chan_set(ah, conf->chandef.chan); |
cd2c5486 BR |
206 | if (ret < 0) |
207 | goto unlock; | |
208 | } | |
209 | ||
210 | if ((changed & IEEE80211_CONF_CHANGE_POWER) && | |
987af54f NK |
211 | (ah->ah_txpower.txp_requested != conf->power_level)) { |
212 | ah->ah_txpower.txp_requested = conf->power_level; | |
cd2c5486 BR |
213 | |
214 | /* Half dB steps */ | |
215 | ath5k_hw_set_txpower_limit(ah, (conf->power_level * 2)); | |
216 | } | |
217 | ||
76a9f6fd BR |
218 | if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) { |
219 | ah->ah_retry_long = conf->long_frame_max_tx_count; | |
220 | ah->ah_retry_short = conf->short_frame_max_tx_count; | |
221 | ||
222 | for (i = 0; i < ah->ah_capabilities.cap_queues.q_tx_num; i++) | |
223 | ath5k_hw_set_tx_retry_limits(ah, i); | |
224 | } | |
225 | ||
cd2c5486 BR |
226 | /* TODO: |
227 | * 1) Move this on config_interface and handle each case | |
228 | * separately eg. when we have only one STA vif, use | |
229 | * AR5K_ANTMODE_SINGLE_AP | |
230 | * | |
231 | * 2) Allow the user to change antenna mode eg. when only | |
232 | * one antenna is present | |
233 | * | |
234 | * 3) Allow the user to set default/tx antenna when possible | |
235 | * | |
236 | * 4) Default mode should handle 90% of the cases, together | |
237 | * with fixed a/b and single AP modes we should be able to | |
238 | * handle 99%. Sectored modes are extreme cases and i still | |
239 | * haven't found a usage for them. If we decide to support them, | |
240 | * then we must allow the user to set how many tx antennas we | |
241 | * have available | |
242 | */ | |
243 | ath5k_hw_set_antenna_mode(ah, ah->ah_ant_mode); | |
244 | ||
245 | unlock: | |
e0d687bd | 246 | mutex_unlock(&ah->lock); |
cd2c5486 BR |
247 | return ret; |
248 | } | |
249 | ||
250 | ||
251 | static void | |
252 | ath5k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, | |
253 | struct ieee80211_bss_conf *bss_conf, u32 changes) | |
254 | { | |
255 | struct ath5k_vif *avf = (void *)vif->drv_priv; | |
e0d687bd | 256 | struct ath5k_hw *ah = hw->priv; |
cd2c5486 | 257 | struct ath_common *common = ath5k_hw_common(ah); |
cd2c5486 | 258 | |
e0d687bd | 259 | mutex_lock(&ah->lock); |
cd2c5486 BR |
260 | |
261 | if (changes & BSS_CHANGED_BSSID) { | |
262 | /* Cache for later use during resets */ | |
263 | memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); | |
264 | common->curaid = 0; | |
265 | ath5k_hw_set_bssid(ah); | |
266 | mmiowb(); | |
267 | } | |
268 | ||
269 | if (changes & BSS_CHANGED_BEACON_INT) | |
e0d687bd | 270 | ah->bintval = bss_conf->beacon_int; |
cd2c5486 | 271 | |
b1ad1b6f FF |
272 | if (changes & BSS_CHANGED_ERP_SLOT) { |
273 | int slot_time; | |
274 | ||
275 | ah->ah_short_slot = bss_conf->use_short_slot; | |
276 | slot_time = ath5k_hw_get_default_slottime(ah) + | |
277 | 3 * ah->ah_coverage_class; | |
278 | ath5k_hw_set_ifs_intervals(ah, slot_time); | |
279 | } | |
280 | ||
cd2c5486 BR |
281 | if (changes & BSS_CHANGED_ASSOC) { |
282 | avf->assoc = bss_conf->assoc; | |
283 | if (bss_conf->assoc) | |
e0d687bd | 284 | ah->assoc = bss_conf->assoc; |
cd2c5486 | 285 | else |
e0d687bd | 286 | ah->assoc = ath5k_any_vif_assoc(ah); |
cd2c5486 | 287 | |
e0d687bd PR |
288 | if (ah->opmode == NL80211_IFTYPE_STATION) |
289 | ath5k_set_beacon_filter(hw, ah->assoc); | |
290 | ath5k_hw_set_ledstate(ah, ah->assoc ? | |
cd2c5486 BR |
291 | AR5K_LED_ASSOC : AR5K_LED_INIT); |
292 | if (bss_conf->assoc) { | |
e0d687bd | 293 | ATH5K_DBG(ah, ATH5K_DEBUG_ANY, |
cd2c5486 BR |
294 | "Bss Info ASSOC %d, bssid: %pM\n", |
295 | bss_conf->aid, common->curbssid); | |
296 | common->curaid = bss_conf->aid; | |
297 | ath5k_hw_set_bssid(ah); | |
298 | /* Once ANI is available you would start it here */ | |
299 | } | |
300 | } | |
301 | ||
302 | if (changes & BSS_CHANGED_BEACON) { | |
7dd6753f | 303 | spin_lock_bh(&ah->block); |
cd2c5486 | 304 | ath5k_beacon_update(hw, vif); |
7dd6753f | 305 | spin_unlock_bh(&ah->block); |
cd2c5486 BR |
306 | } |
307 | ||
308 | if (changes & BSS_CHANGED_BEACON_ENABLED) | |
e0d687bd | 309 | ah->enable_beacon = bss_conf->enable_beacon; |
cd2c5486 BR |
310 | |
311 | if (changes & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_ENABLED | | |
312 | BSS_CHANGED_BEACON_INT)) | |
e0d687bd | 313 | ath5k_beacon_config(ah); |
cd2c5486 | 314 | |
e0d687bd | 315 | mutex_unlock(&ah->lock); |
cd2c5486 BR |
316 | } |
317 | ||
318 | ||
319 | static u64 | |
320 | ath5k_prepare_multicast(struct ieee80211_hw *hw, | |
321 | struct netdev_hw_addr_list *mc_list) | |
322 | { | |
323 | u32 mfilt[2], val; | |
324 | u8 pos; | |
325 | struct netdev_hw_addr *ha; | |
326 | ||
327 | mfilt[0] = 0; | |
f287cbd0 | 328 | mfilt[1] = 0; |
cd2c5486 BR |
329 | |
330 | netdev_hw_addr_list_for_each(ha, mc_list) { | |
331 | /* calculate XOR of eight 6-bit values */ | |
332 | val = get_unaligned_le32(ha->addr + 0); | |
333 | pos = (val >> 18) ^ (val >> 12) ^ (val >> 6) ^ val; | |
334 | val = get_unaligned_le32(ha->addr + 3); | |
335 | pos ^= (val >> 18) ^ (val >> 12) ^ (val >> 6) ^ val; | |
336 | pos &= 0x3f; | |
337 | mfilt[pos / 32] |= (1 << (pos % 32)); | |
338 | /* XXX: we might be able to just do this instead, | |
339 | * but not sure, needs testing, if we do use this we'd | |
6a2a0e73 | 340 | * need to inform below not to reset the mcast */ |
cd2c5486 BR |
341 | /* ath5k_hw_set_mcast_filterindex(ah, |
342 | * ha->addr[5]); */ | |
343 | } | |
344 | ||
345 | return ((u64)(mfilt[1]) << 32) | mfilt[0]; | |
346 | } | |
347 | ||
348 | ||
349 | /* | |
350 | * o always accept unicast, broadcast, and multicast traffic | |
351 | * o multicast traffic for all BSSIDs will be enabled if mac80211 | |
352 | * says it should be | |
353 | * o maintain current state of phy ofdm or phy cck error reception. | |
354 | * If the hardware detects any of these type of errors then | |
355 | * ath5k_hw_get_rx_filter() will pass to us the respective | |
356 | * hardware filters to be able to receive these type of frames. | |
357 | * o probe request frames are accepted only when operating in | |
358 | * hostap, adhoc, or monitor modes | |
359 | * o enable promiscuous mode according to the interface state | |
360 | * o accept beacons: | |
361 | * - when operating in adhoc mode so the 802.11 layer creates | |
362 | * node table entries for peers, | |
363 | * - when operating in station mode for collecting rssi data when | |
364 | * the station is otherwise quiet, or | |
365 | * - when scanning | |
366 | */ | |
367 | static void | |
368 | ath5k_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags, | |
369 | unsigned int *new_flags, u64 multicast) | |
370 | { | |
371 | #define SUPPORTED_FIF_FLAGS \ | |
372 | (FIF_PROMISC_IN_BSS | FIF_ALLMULTI | FIF_FCSFAIL | \ | |
373 | FIF_PLCPFAIL | FIF_CONTROL | FIF_OTHER_BSS | \ | |
374 | FIF_BCN_PRBRESP_PROMISC) | |
375 | ||
e0d687bd | 376 | struct ath5k_hw *ah = hw->priv; |
cd2c5486 | 377 | u32 mfilt[2], rfilt; |
e4b0b32a | 378 | struct ath5k_vif_iter_data iter_data; /* to count STA interfaces */ |
cd2c5486 | 379 | |
e0d687bd | 380 | mutex_lock(&ah->lock); |
cd2c5486 BR |
381 | |
382 | mfilt[0] = multicast; | |
383 | mfilt[1] = multicast >> 32; | |
384 | ||
385 | /* Only deal with supported flags */ | |
386 | changed_flags &= SUPPORTED_FIF_FLAGS; | |
387 | *new_flags &= SUPPORTED_FIF_FLAGS; | |
388 | ||
389 | /* If HW detects any phy or radar errors, leave those filters on. | |
390 | * Also, always enable Unicast, Broadcasts and Multicast | |
391 | * XXX: move unicast, bssid broadcasts and multicast to mac80211 */ | |
392 | rfilt = (ath5k_hw_get_rx_filter(ah) & (AR5K_RX_FILTER_PHYERR)) | | |
393 | (AR5K_RX_FILTER_UCAST | AR5K_RX_FILTER_BCAST | | |
394 | AR5K_RX_FILTER_MCAST); | |
395 | ||
396 | if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) { | |
397 | if (*new_flags & FIF_PROMISC_IN_BSS) | |
e0d687bd | 398 | __set_bit(ATH_STAT_PROMISC, ah->status); |
cd2c5486 | 399 | else |
e0d687bd | 400 | __clear_bit(ATH_STAT_PROMISC, ah->status); |
cd2c5486 BR |
401 | } |
402 | ||
e0d687bd | 403 | if (test_bit(ATH_STAT_PROMISC, ah->status)) |
cd2c5486 BR |
404 | rfilt |= AR5K_RX_FILTER_PROM; |
405 | ||
406 | /* Note, AR5K_RX_FILTER_MCAST is already enabled */ | |
407 | if (*new_flags & FIF_ALLMULTI) { | |
408 | mfilt[0] = ~0; | |
409 | mfilt[1] = ~0; | |
410 | } | |
411 | ||
412 | /* This is the best we can do */ | |
413 | if (*new_flags & (FIF_FCSFAIL | FIF_PLCPFAIL)) | |
414 | rfilt |= AR5K_RX_FILTER_PHYERR; | |
415 | ||
416 | /* FIF_BCN_PRBRESP_PROMISC really means to enable beacons | |
417 | * and probes for any BSSID */ | |
e0d687bd | 418 | if ((*new_flags & FIF_BCN_PRBRESP_PROMISC) || (ah->nvifs > 1)) |
cd2c5486 BR |
419 | rfilt |= AR5K_RX_FILTER_BEACON; |
420 | ||
421 | /* FIF_CONTROL doc says that if FIF_PROMISC_IN_BSS is not | |
422 | * set we should only pass on control frames for this | |
423 | * station. This needs testing. I believe right now this | |
424 | * enables *all* control frames, which is OK.. but | |
425 | * but we should see if we can improve on granularity */ | |
426 | if (*new_flags & FIF_CONTROL) | |
427 | rfilt |= AR5K_RX_FILTER_CONTROL; | |
428 | ||
429 | /* Additional settings per mode -- this is per ath5k */ | |
430 | ||
431 | /* XXX move these to mac80211, and add a beacon IFF flag to mac80211 */ | |
432 | ||
e0d687bd | 433 | switch (ah->opmode) { |
cd2c5486 BR |
434 | case NL80211_IFTYPE_MESH_POINT: |
435 | rfilt |= AR5K_RX_FILTER_CONTROL | | |
436 | AR5K_RX_FILTER_BEACON | | |
437 | AR5K_RX_FILTER_PROBEREQ | | |
438 | AR5K_RX_FILTER_PROM; | |
439 | break; | |
440 | case NL80211_IFTYPE_AP: | |
441 | case NL80211_IFTYPE_ADHOC: | |
442 | rfilt |= AR5K_RX_FILTER_PROBEREQ | | |
443 | AR5K_RX_FILTER_BEACON; | |
444 | break; | |
445 | case NL80211_IFTYPE_STATION: | |
e0d687bd | 446 | if (ah->assoc) |
cd2c5486 BR |
447 | rfilt |= AR5K_RX_FILTER_BEACON; |
448 | default: | |
449 | break; | |
450 | } | |
451 | ||
e4b0b32a BG |
452 | iter_data.hw_macaddr = NULL; |
453 | iter_data.n_stas = 0; | |
454 | iter_data.need_set_hw_addr = false; | |
8b2c9824 JB |
455 | ieee80211_iterate_active_interfaces_atomic( |
456 | ah->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
457 | ath5k_vif_iter, &iter_data); | |
e4b0b32a BG |
458 | |
459 | /* Set up RX Filter */ | |
460 | if (iter_data.n_stas > 1) { | |
461 | /* If you have multiple STA interfaces connected to | |
462 | * different APs, ARPs are not received (most of the time?) | |
6a2a0e73 | 463 | * Enabling PROMISC appears to fix that problem. |
e4b0b32a BG |
464 | */ |
465 | rfilt |= AR5K_RX_FILTER_PROM; | |
466 | } | |
467 | ||
cd2c5486 BR |
468 | /* Set filters */ |
469 | ath5k_hw_set_rx_filter(ah, rfilt); | |
470 | ||
471 | /* Set multicast bits */ | |
472 | ath5k_hw_set_mcast_filter(ah, mfilt[0], mfilt[1]); | |
473 | /* Set the cached hw filter flags, this will later actually | |
474 | * be set in HW */ | |
e0d687bd | 475 | ah->filter_flags = rfilt; |
cd2c5486 | 476 | |
e0d687bd | 477 | mutex_unlock(&ah->lock); |
cd2c5486 BR |
478 | } |
479 | ||
480 | ||
481 | static int | |
482 | ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, | |
483 | struct ieee80211_vif *vif, struct ieee80211_sta *sta, | |
484 | struct ieee80211_key_conf *key) | |
485 | { | |
e0d687bd | 486 | struct ath5k_hw *ah = hw->priv; |
cd2c5486 BR |
487 | struct ath_common *common = ath5k_hw_common(ah); |
488 | int ret = 0; | |
489 | ||
18cb6e32 | 490 | if (ath5k_modparam_nohwcrypt) |
cd2c5486 BR |
491 | return -EOPNOTSUPP; |
492 | ||
90e6274d CYY |
493 | if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) |
494 | return -EOPNOTSUPP; | |
495 | ||
f9972577 AQ |
496 | if (vif->type == NL80211_IFTYPE_ADHOC && |
497 | (key->cipher == WLAN_CIPHER_SUITE_TKIP || | |
498 | key->cipher == WLAN_CIPHER_SUITE_CCMP) && | |
499 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { | |
500 | /* don't program group keys when using IBSS_RSN */ | |
501 | return -EOPNOTSUPP; | |
502 | } | |
503 | ||
cd2c5486 BR |
504 | switch (key->cipher) { |
505 | case WLAN_CIPHER_SUITE_WEP40: | |
506 | case WLAN_CIPHER_SUITE_WEP104: | |
507 | case WLAN_CIPHER_SUITE_TKIP: | |
508 | break; | |
509 | case WLAN_CIPHER_SUITE_CCMP: | |
510 | if (common->crypt_caps & ATH_CRYPT_CAP_CIPHER_AESCCM) | |
511 | break; | |
512 | return -EOPNOTSUPP; | |
513 | default: | |
514 | WARN_ON(1); | |
515 | return -EINVAL; | |
516 | } | |
517 | ||
e0d687bd | 518 | mutex_lock(&ah->lock); |
cd2c5486 BR |
519 | |
520 | switch (cmd) { | |
521 | case SET_KEY: | |
522 | ret = ath_key_config(common, vif, sta, key); | |
523 | if (ret >= 0) { | |
524 | key->hw_key_idx = ret; | |
525 | /* push IV and Michael MIC generation to stack */ | |
526 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
527 | if (key->cipher == WLAN_CIPHER_SUITE_TKIP) | |
528 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
529 | if (key->cipher == WLAN_CIPHER_SUITE_CCMP) | |
e548c49e | 530 | key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; |
cd2c5486 BR |
531 | ret = 0; |
532 | } | |
533 | break; | |
534 | case DISABLE_KEY: | |
535 | ath_key_delete(common, key); | |
536 | break; | |
537 | default: | |
538 | ret = -EINVAL; | |
539 | } | |
540 | ||
541 | mmiowb(); | |
e0d687bd | 542 | mutex_unlock(&ah->lock); |
cd2c5486 BR |
543 | return ret; |
544 | } | |
545 | ||
546 | ||
547 | static void | |
548 | ath5k_sw_scan_start(struct ieee80211_hw *hw) | |
549 | { | |
e0d687bd PR |
550 | struct ath5k_hw *ah = hw->priv; |
551 | if (!ah->assoc) | |
552 | ath5k_hw_set_ledstate(ah, AR5K_LED_SCAN); | |
cd2c5486 BR |
553 | } |
554 | ||
555 | ||
556 | static void | |
557 | ath5k_sw_scan_complete(struct ieee80211_hw *hw) | |
558 | { | |
e0d687bd PR |
559 | struct ath5k_hw *ah = hw->priv; |
560 | ath5k_hw_set_ledstate(ah, ah->assoc ? | |
cd2c5486 BR |
561 | AR5K_LED_ASSOC : AR5K_LED_INIT); |
562 | } | |
563 | ||
564 | ||
565 | static int | |
566 | ath5k_get_stats(struct ieee80211_hw *hw, | |
567 | struct ieee80211_low_level_stats *stats) | |
568 | { | |
e0d687bd | 569 | struct ath5k_hw *ah = hw->priv; |
cd2c5486 BR |
570 | |
571 | /* Force update */ | |
e0d687bd | 572 | ath5k_hw_update_mib_counters(ah); |
cd2c5486 | 573 | |
e0d687bd PR |
574 | stats->dot11ACKFailureCount = ah->stats.ack_fail; |
575 | stats->dot11RTSFailureCount = ah->stats.rts_fail; | |
576 | stats->dot11RTSSuccessCount = ah->stats.rts_ok; | |
577 | stats->dot11FCSErrorCount = ah->stats.fcs_error; | |
cd2c5486 BR |
578 | |
579 | return 0; | |
580 | } | |
581 | ||
582 | ||
583 | static int | |
8a3a3c85 | 584 | ath5k_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, |
cd2c5486 BR |
585 | const struct ieee80211_tx_queue_params *params) |
586 | { | |
e0d687bd | 587 | struct ath5k_hw *ah = hw->priv; |
cd2c5486 BR |
588 | struct ath5k_txq_info qi; |
589 | int ret = 0; | |
590 | ||
591 | if (queue >= ah->ah_capabilities.cap_queues.q_tx_num) | |
592 | return 0; | |
593 | ||
e0d687bd | 594 | mutex_lock(&ah->lock); |
cd2c5486 BR |
595 | |
596 | ath5k_hw_get_tx_queueprops(ah, queue, &qi); | |
597 | ||
598 | qi.tqi_aifs = params->aifs; | |
599 | qi.tqi_cw_min = params->cw_min; | |
600 | qi.tqi_cw_max = params->cw_max; | |
0f245ed2 | 601 | qi.tqi_burst_time = params->txop * 32; |
cd2c5486 | 602 | |
e0d687bd | 603 | ATH5K_DBG(ah, ATH5K_DEBUG_ANY, |
cd2c5486 BR |
604 | "Configure tx [queue %d], " |
605 | "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", | |
606 | queue, params->aifs, params->cw_min, | |
607 | params->cw_max, params->txop); | |
608 | ||
609 | if (ath5k_hw_set_tx_queueprops(ah, queue, &qi)) { | |
e0d687bd | 610 | ATH5K_ERR(ah, |
cd2c5486 BR |
611 | "Unable to update hardware queue %u!\n", queue); |
612 | ret = -EIO; | |
613 | } else | |
614 | ath5k_hw_reset_tx_queue(ah, queue); | |
615 | ||
e0d687bd | 616 | mutex_unlock(&ah->lock); |
cd2c5486 BR |
617 | |
618 | return ret; | |
619 | } | |
620 | ||
621 | ||
622 | static u64 | |
37a41b4a | 623 | ath5k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) |
cd2c5486 | 624 | { |
e0d687bd | 625 | struct ath5k_hw *ah = hw->priv; |
cd2c5486 | 626 | |
e0d687bd | 627 | return ath5k_hw_get_tsf64(ah); |
cd2c5486 BR |
628 | } |
629 | ||
630 | ||
631 | static void | |
37a41b4a | 632 | ath5k_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u64 tsf) |
cd2c5486 | 633 | { |
e0d687bd | 634 | struct ath5k_hw *ah = hw->priv; |
cd2c5486 | 635 | |
e0d687bd | 636 | ath5k_hw_set_tsf64(ah, tsf); |
cd2c5486 BR |
637 | } |
638 | ||
639 | ||
640 | static void | |
37a41b4a | 641 | ath5k_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) |
cd2c5486 | 642 | { |
e0d687bd | 643 | struct ath5k_hw *ah = hw->priv; |
cd2c5486 BR |
644 | |
645 | /* | |
646 | * in IBSS mode we need to update the beacon timers too. | |
647 | * this will also reset the TSF if we call it with 0 | |
648 | */ | |
e0d687bd PR |
649 | if (ah->opmode == NL80211_IFTYPE_ADHOC) |
650 | ath5k_beacon_update_timers(ah, 0); | |
cd2c5486 | 651 | else |
e0d687bd | 652 | ath5k_hw_reset_tsf(ah); |
cd2c5486 BR |
653 | } |
654 | ||
655 | ||
656 | static int | |
657 | ath5k_get_survey(struct ieee80211_hw *hw, int idx, struct survey_info *survey) | |
658 | { | |
e0d687bd | 659 | struct ath5k_hw *ah = hw->priv; |
cd2c5486 | 660 | struct ieee80211_conf *conf = &hw->conf; |
e0d687bd | 661 | struct ath_common *common = ath5k_hw_common(ah); |
cd2c5486 BR |
662 | struct ath_cycle_counters *cc = &common->cc_survey; |
663 | unsigned int div = common->clockrate * 1000; | |
664 | ||
665 | if (idx != 0) | |
666 | return -ENOENT; | |
667 | ||
668 | spin_lock_bh(&common->cc_lock); | |
669 | ath_hw_cycle_counters_update(common); | |
670 | if (cc->cycles > 0) { | |
e0d687bd PR |
671 | ah->survey.channel_time += cc->cycles / div; |
672 | ah->survey.channel_time_busy += cc->rx_busy / div; | |
673 | ah->survey.channel_time_rx += cc->rx_frame / div; | |
674 | ah->survey.channel_time_tx += cc->tx_frame / div; | |
cd2c5486 BR |
675 | } |
676 | memset(cc, 0, sizeof(*cc)); | |
677 | spin_unlock_bh(&common->cc_lock); | |
678 | ||
e0d687bd | 679 | memcpy(survey, &ah->survey, sizeof(*survey)); |
cd2c5486 | 680 | |
675a0b04 | 681 | survey->channel = conf->chandef.chan; |
e0d687bd | 682 | survey->noise = ah->ah_noise_floor; |
cd2c5486 BR |
683 | survey->filled = SURVEY_INFO_NOISE_DBM | |
684 | SURVEY_INFO_CHANNEL_TIME | | |
685 | SURVEY_INFO_CHANNEL_TIME_BUSY | | |
686 | SURVEY_INFO_CHANNEL_TIME_RX | | |
687 | SURVEY_INFO_CHANNEL_TIME_TX; | |
688 | ||
689 | return 0; | |
690 | } | |
691 | ||
692 | ||
693 | /** | |
694 | * ath5k_set_coverage_class - Set IEEE 802.11 coverage class | |
695 | * | |
696 | * @hw: struct ieee80211_hw pointer | |
697 | * @coverage_class: IEEE 802.11 coverage class number | |
698 | * | |
699 | * Mac80211 callback. Sets slot time, ACK timeout and CTS timeout for given | |
700 | * coverage class. The values are persistent, they are restored after device | |
701 | * reset. | |
702 | */ | |
703 | static void | |
704 | ath5k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class) | |
705 | { | |
e0d687bd | 706 | struct ath5k_hw *ah = hw->priv; |
cd2c5486 | 707 | |
e0d687bd PR |
708 | mutex_lock(&ah->lock); |
709 | ath5k_hw_set_coverage_class(ah, coverage_class); | |
710 | mutex_unlock(&ah->lock); | |
cd2c5486 BR |
711 | } |
712 | ||
713 | ||
714 | static int | |
715 | ath5k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) | |
716 | { | |
e0d687bd | 717 | struct ath5k_hw *ah = hw->priv; |
cd2c5486 BR |
718 | |
719 | if (tx_ant == 1 && rx_ant == 1) | |
e0d687bd | 720 | ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A); |
cd2c5486 | 721 | else if (tx_ant == 2 && rx_ant == 2) |
e0d687bd | 722 | ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B); |
cd2c5486 | 723 | else if ((tx_ant & 3) == 3 && (rx_ant & 3) == 3) |
e0d687bd | 724 | ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT); |
cd2c5486 BR |
725 | else |
726 | return -EINVAL; | |
727 | return 0; | |
728 | } | |
729 | ||
730 | ||
731 | static int | |
732 | ath5k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) | |
733 | { | |
e0d687bd | 734 | struct ath5k_hw *ah = hw->priv; |
cd2c5486 | 735 | |
e0d687bd | 736 | switch (ah->ah_ant_mode) { |
cd2c5486 BR |
737 | case AR5K_ANTMODE_FIXED_A: |
738 | *tx_ant = 1; *rx_ant = 1; break; | |
739 | case AR5K_ANTMODE_FIXED_B: | |
740 | *tx_ant = 2; *rx_ant = 2; break; | |
741 | case AR5K_ANTMODE_DEFAULT: | |
742 | *tx_ant = 3; *rx_ant = 3; break; | |
743 | } | |
744 | return 0; | |
745 | } | |
746 | ||
747 | ||
81266baf JL |
748 | static void ath5k_get_ringparam(struct ieee80211_hw *hw, |
749 | u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max) | |
750 | { | |
e0d687bd | 751 | struct ath5k_hw *ah = hw->priv; |
81266baf | 752 | |
e0d687bd | 753 | *tx = ah->txqs[AR5K_TX_QUEUE_ID_DATA_MIN].txq_max; |
81266baf JL |
754 | |
755 | *tx_max = ATH5K_TXQ_LEN_MAX; | |
756 | *rx = *rx_max = ATH_RXBUF; | |
757 | } | |
758 | ||
759 | ||
760 | static int ath5k_set_ringparam(struct ieee80211_hw *hw, u32 tx, u32 rx) | |
761 | { | |
e0d687bd | 762 | struct ath5k_hw *ah = hw->priv; |
81266baf JL |
763 | u16 qnum; |
764 | ||
765 | /* only support setting tx ring size for now */ | |
766 | if (rx != ATH_RXBUF) | |
767 | return -EINVAL; | |
768 | ||
769 | /* restrict tx ring size min/max */ | |
770 | if (!tx || tx > ATH5K_TXQ_LEN_MAX) | |
771 | return -EINVAL; | |
772 | ||
e0d687bd PR |
773 | for (qnum = 0; qnum < ARRAY_SIZE(ah->txqs); qnum++) { |
774 | if (!ah->txqs[qnum].setup) | |
81266baf | 775 | continue; |
e0d687bd PR |
776 | if (ah->txqs[qnum].qnum < AR5K_TX_QUEUE_ID_DATA_MIN || |
777 | ah->txqs[qnum].qnum > AR5K_TX_QUEUE_ID_DATA_MAX) | |
81266baf JL |
778 | continue; |
779 | ||
e0d687bd PR |
780 | ah->txqs[qnum].txq_max = tx; |
781 | if (ah->txqs[qnum].txq_len >= ah->txqs[qnum].txq_max) | |
782 | ieee80211_stop_queue(hw, ah->txqs[qnum].qnum); | |
81266baf JL |
783 | } |
784 | ||
785 | return 0; | |
786 | } | |
787 | ||
788 | ||
cd2c5486 BR |
789 | const struct ieee80211_ops ath5k_hw_ops = { |
790 | .tx = ath5k_tx, | |
791 | .start = ath5k_start, | |
792 | .stop = ath5k_stop, | |
793 | .add_interface = ath5k_add_interface, | |
794 | /* .change_interface = not implemented */ | |
795 | .remove_interface = ath5k_remove_interface, | |
796 | .config = ath5k_config, | |
797 | .bss_info_changed = ath5k_bss_info_changed, | |
798 | .prepare_multicast = ath5k_prepare_multicast, | |
799 | .configure_filter = ath5k_configure_filter, | |
800 | /* .set_tim = not implemented */ | |
801 | .set_key = ath5k_set_key, | |
802 | /* .update_tkip_key = not implemented */ | |
803 | /* .hw_scan = not implemented */ | |
804 | .sw_scan_start = ath5k_sw_scan_start, | |
805 | .sw_scan_complete = ath5k_sw_scan_complete, | |
806 | .get_stats = ath5k_get_stats, | |
807 | /* .get_tkip_seq = not implemented */ | |
808 | /* .set_frag_threshold = not implemented */ | |
809 | /* .set_rts_threshold = not implemented */ | |
810 | /* .sta_add = not implemented */ | |
811 | /* .sta_remove = not implemented */ | |
812 | /* .sta_notify = not implemented */ | |
813 | .conf_tx = ath5k_conf_tx, | |
814 | .get_tsf = ath5k_get_tsf, | |
815 | .set_tsf = ath5k_set_tsf, | |
816 | .reset_tsf = ath5k_reset_tsf, | |
817 | /* .tx_last_beacon = not implemented */ | |
818 | /* .ampdu_action = not needed */ | |
819 | .get_survey = ath5k_get_survey, | |
820 | .set_coverage_class = ath5k_set_coverage_class, | |
821 | /* .rfkill_poll = not implemented */ | |
822 | /* .flush = not implemented */ | |
823 | /* .channel_switch = not implemented */ | |
824 | /* .napi_poll = not implemented */ | |
825 | .set_antenna = ath5k_set_antenna, | |
826 | .get_antenna = ath5k_get_antenna, | |
81266baf JL |
827 | .set_ringparam = ath5k_set_ringparam, |
828 | .get_ringparam = ath5k_get_ringparam, | |
cd2c5486 | 829 | }; |