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Commit | Line | Data |
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7335613a WYG |
1 | /****************************************************************************** |
2 | * | |
128e63ef | 3 | * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. |
7335613a WYG |
4 | * |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
25 | * Intel Linux Wireless <ilw@linux.intel.com> | |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
27 | * | |
28 | *****************************************************************************/ | |
29 | #include <linux/kernel.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/init.h> | |
32 | #include <linux/slab.h> | |
33 | #include <linux/dma-mapping.h> | |
34 | #include <linux/delay.h> | |
35 | #include <linux/sched.h> | |
36 | #include <linux/skbuff.h> | |
37 | #include <linux/netdevice.h> | |
7335613a WYG |
38 | #include <linux/etherdevice.h> |
39 | #include <linux/if_arp.h> | |
40 | ||
53e1116e | 41 | #include <net/ieee80211_radiotap.h> |
7335613a WYG |
42 | #include <net/mac80211.h> |
43 | ||
44 | #include <asm/div64.h> | |
45 | ||
7335613a | 46 | #include "iwl-io.h" |
7335613a | 47 | #include "iwl-trans.h" |
d0f76d68 | 48 | #include "iwl-op-mode.h" |
65de7e84 | 49 | #include "iwl-modparams.h" |
7335613a | 50 | |
1023fdc4 JB |
51 | #include "dev.h" |
52 | #include "calib.h" | |
53 | #include "agn.h" | |
54 | ||
7335613a WYG |
55 | /***************************************************************************** |
56 | * | |
57 | * mac80211 entry point functions | |
58 | * | |
59 | *****************************************************************************/ | |
60 | ||
61 | static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = { | |
62 | { | |
63 | .max = 1, | |
64 | .types = BIT(NL80211_IFTYPE_STATION), | |
65 | }, | |
66 | { | |
67 | .max = 1, | |
68 | .types = BIT(NL80211_IFTYPE_AP), | |
69 | }, | |
70 | }; | |
71 | ||
72 | static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = { | |
73 | { | |
74 | .max = 2, | |
75 | .types = BIT(NL80211_IFTYPE_STATION), | |
76 | }, | |
77 | }; | |
78 | ||
79 | static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = { | |
80 | { | |
81 | .max = 1, | |
82 | .types = BIT(NL80211_IFTYPE_STATION), | |
83 | }, | |
84 | { | |
85 | .max = 1, | |
86 | .types = BIT(NL80211_IFTYPE_P2P_GO) | | |
87 | BIT(NL80211_IFTYPE_AP), | |
88 | }, | |
89 | }; | |
90 | ||
91 | static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = { | |
92 | { | |
93 | .max = 2, | |
94 | .types = BIT(NL80211_IFTYPE_STATION), | |
95 | }, | |
96 | { | |
97 | .max = 1, | |
98 | .types = BIT(NL80211_IFTYPE_P2P_CLIENT), | |
99 | }, | |
100 | }; | |
101 | ||
102 | static const struct ieee80211_iface_combination | |
103 | iwlagn_iface_combinations_dualmode[] = { | |
104 | { .num_different_channels = 1, | |
105 | .max_interfaces = 2, | |
106 | .beacon_int_infra_match = true, | |
107 | .limits = iwlagn_sta_ap_limits, | |
108 | .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits), | |
109 | }, | |
110 | { .num_different_channels = 1, | |
111 | .max_interfaces = 2, | |
112 | .limits = iwlagn_2sta_limits, | |
113 | .n_limits = ARRAY_SIZE(iwlagn_2sta_limits), | |
114 | }, | |
115 | }; | |
116 | ||
117 | static const struct ieee80211_iface_combination | |
118 | iwlagn_iface_combinations_p2p[] = { | |
119 | { .num_different_channels = 1, | |
120 | .max_interfaces = 2, | |
121 | .beacon_int_infra_match = true, | |
122 | .limits = iwlagn_p2p_sta_go_limits, | |
123 | .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits), | |
124 | }, | |
125 | { .num_different_channels = 1, | |
126 | .max_interfaces = 2, | |
127 | .limits = iwlagn_p2p_2sta_limits, | |
128 | .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits), | |
129 | }, | |
130 | }; | |
131 | ||
132 | /* | |
133 | * Not a mac80211 entry point function, but it fits in with all the | |
134 | * other mac80211 functions grouped here. | |
135 | */ | |
136 | int iwlagn_mac_setup_register(struct iwl_priv *priv, | |
0692fe41 | 137 | const struct iwl_ucode_capabilities *capa) |
7335613a WYG |
138 | { |
139 | int ret; | |
140 | struct ieee80211_hw *hw = priv->hw; | |
141 | struct iwl_rxon_context *ctx; | |
142 | ||
143 | hw->rate_control_algorithm = "iwl-agn-rs"; | |
144 | ||
145 | /* Tell mac80211 our characteristics */ | |
146 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
147 | IEEE80211_HW_AMPDU_AGGREGATION | | |
c65dd147 | 148 | IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC | |
7335613a | 149 | IEEE80211_HW_SPECTRUM_MGMT | |
1479177b JB |
150 | IEEE80211_HW_REPORTS_TX_ACK_STATUS | |
151 | IEEE80211_HW_QUEUE_CONTROL | | |
152 | IEEE80211_HW_SUPPORTS_PS | | |
153 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS | | |
f1e3e051 | 154 | IEEE80211_HW_WANT_MONITOR_VIF; |
1479177b JB |
155 | |
156 | hw->offchannel_tx_hw_queue = IWL_AUX_QUEUE; | |
53e1116e | 157 | hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FMT; |
7335613a WYG |
158 | |
159 | /* | |
160 | * Including the following line will crash some AP's. This | |
161 | * workaround removes the stimulus which causes the crash until | |
162 | * the AP software can be fixed. | |
163 | hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF; | |
164 | */ | |
165 | ||
b7998c8b | 166 | if (priv->nvm_data->sku_cap_11n_enable) |
7335613a WYG |
167 | hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | |
168 | IEEE80211_HW_SUPPORTS_STATIC_SMPS; | |
169 | ||
686681b0 JB |
170 | /* |
171 | * Enable 11w if advertised by firmware and software crypto | |
172 | * is not enabled (as the firmware will interpret some mgmt | |
173 | * packets, so enabling it with software crypto isn't safe) | |
174 | */ | |
175 | if (priv->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && | |
176 | !iwlwifi_mod_params.sw_crypto) | |
7335613a WYG |
177 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; |
178 | ||
179 | hw->sta_data_size = sizeof(struct iwl_station_priv); | |
180 | hw->vif_data_size = sizeof(struct iwl_vif_priv); | |
181 | ||
182 | for_each_context(priv, ctx) { | |
183 | hw->wiphy->interface_modes |= ctx->interface_modes; | |
184 | hw->wiphy->interface_modes |= ctx->exclusive_interface_modes; | |
185 | } | |
186 | ||
187 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
188 | ||
189 | if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) { | |
190 | hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p; | |
191 | hw->wiphy->n_iface_combinations = | |
192 | ARRAY_SIZE(iwlagn_iface_combinations_p2p); | |
193 | } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { | |
194 | hw->wiphy->iface_combinations = | |
195 | iwlagn_iface_combinations_dualmode; | |
196 | hw->wiphy->n_iface_combinations = | |
197 | ARRAY_SIZE(iwlagn_iface_combinations_dualmode); | |
198 | } | |
199 | ||
da0cabb8 | 200 | hw->wiphy->max_remain_on_channel_duration = 500; |
7335613a WYG |
201 | |
202 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | | |
203 | WIPHY_FLAG_DISABLE_BEACON_HINTS | | |
204 | WIPHY_FLAG_IBSS_RSN; | |
205 | ||
fcb6ff5e | 206 | #ifdef CONFIG_PM_SLEEP |
6dfa8d01 | 207 | if (priv->fw->img[IWL_UCODE_WOWLAN].sec[0].len && |
ddaf5a5b JB |
208 | priv->trans->ops->d3_suspend && |
209 | priv->trans->ops->d3_resume && | |
68e8dfda | 210 | device_can_wakeup(priv->trans->dev)) { |
964dc9e2 JB |
211 | priv->wowlan_support.flags = WIPHY_WOWLAN_MAGIC_PKT | |
212 | WIPHY_WOWLAN_DISCONNECT | | |
213 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
214 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
65de7e84 | 215 | if (!iwlwifi_mod_params.sw_crypto) |
964dc9e2 | 216 | priv->wowlan_support.flags |= |
7335613a WYG |
217 | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
218 | WIPHY_WOWLAN_GTK_REKEY_FAILURE; | |
219 | ||
964dc9e2 JB |
220 | priv->wowlan_support.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS; |
221 | priv->wowlan_support.pattern_min_len = | |
7335613a | 222 | IWLAGN_WOWLAN_MIN_PATTERN_LEN; |
964dc9e2 | 223 | priv->wowlan_support.pattern_max_len = |
7335613a | 224 | IWLAGN_WOWLAN_MAX_PATTERN_LEN; |
964dc9e2 | 225 | hw->wiphy->wowlan = &priv->wowlan_support; |
7335613a | 226 | } |
fcb6ff5e | 227 | #endif |
7335613a | 228 | |
65de7e84 | 229 | if (iwlwifi_mod_params.power_save) |
7335613a WYG |
230 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
231 | else | |
232 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
233 | ||
234 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; | |
4f9bfbb1 DS |
235 | /* we create the 802.11 header and a max-length SSID element */ |
236 | hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 34; | |
7335613a | 237 | |
1479177b JB |
238 | /* |
239 | * We don't use all queues: 4 and 9 are unused and any | |
240 | * aggregation queue gets mapped down to the AC queue. | |
241 | */ | |
242 | hw->queues = IWLAGN_FIRST_AMPDU_QUEUE; | |
7335613a WYG |
243 | |
244 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; | |
245 | ||
b7998c8b | 246 | if (priv->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) |
7335613a | 247 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
b7998c8b EL |
248 | &priv->nvm_data->bands[IEEE80211_BAND_2GHZ]; |
249 | if (priv->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) | |
7335613a | 250 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
b7998c8b | 251 | &priv->nvm_data->bands[IEEE80211_BAND_5GHZ]; |
7335613a | 252 | |
68e8dfda | 253 | hw->wiphy->hw_version = priv->trans->hw_id; |
0ba958eb | 254 | |
7335613a WYG |
255 | iwl_leds_init(priv); |
256 | ||
257 | ret = ieee80211_register_hw(priv->hw); | |
258 | if (ret) { | |
259 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); | |
0e1fa7ef | 260 | iwl_leds_exit(priv); |
7335613a WYG |
261 | return ret; |
262 | } | |
263 | priv->mac80211_registered = 1; | |
264 | ||
265 | return 0; | |
266 | } | |
267 | ||
09af1403 DF |
268 | void iwlagn_mac_unregister(struct iwl_priv *priv) |
269 | { | |
270 | if (!priv->mac80211_registered) | |
271 | return; | |
272 | iwl_leds_exit(priv); | |
273 | ieee80211_unregister_hw(priv->hw); | |
274 | priv->mac80211_registered = 0; | |
275 | } | |
276 | ||
7335613a WYG |
277 | static int __iwl_up(struct iwl_priv *priv) |
278 | { | |
279 | struct iwl_rxon_context *ctx; | |
280 | int ret; | |
281 | ||
b1eea297 | 282 | lockdep_assert_held(&priv->mutex); |
7335613a | 283 | |
83626404 | 284 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
7335613a WYG |
285 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
286 | return -EIO; | |
287 | } | |
288 | ||
289 | for_each_context(priv, ctx) { | |
290 | ret = iwlagn_alloc_bcast_station(priv, ctx); | |
291 | if (ret) { | |
292 | iwl_dealloc_bcast_stations(priv); | |
293 | return ret; | |
294 | } | |
295 | } | |
296 | ||
e1991885 | 297 | ret = iwl_run_init_ucode(priv); |
7335613a WYG |
298 | if (ret) { |
299 | IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret); | |
300 | goto error; | |
301 | } | |
302 | ||
e1991885 | 303 | ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR); |
7335613a WYG |
304 | if (ret) { |
305 | IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret); | |
306 | goto error; | |
307 | } | |
308 | ||
309 | ret = iwl_alive_start(priv); | |
310 | if (ret) | |
311 | goto error; | |
312 | return 0; | |
313 | ||
314 | error: | |
83626404 | 315 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
78e5a464 | 316 | iwl_down(priv); |
83626404 | 317 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
7335613a WYG |
318 | |
319 | IWL_ERR(priv, "Unable to initialize device.\n"); | |
320 | return ret; | |
321 | } | |
322 | ||
323 | static int iwlagn_mac_start(struct ieee80211_hw *hw) | |
324 | { | |
d0f76d68 | 325 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
326 | int ret; |
327 | ||
328 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
329 | ||
330 | /* we should be verifying the device is ready to be opened */ | |
b1eea297 | 331 | mutex_lock(&priv->mutex); |
7335613a | 332 | ret = __iwl_up(priv); |
b1eea297 | 333 | mutex_unlock(&priv->mutex); |
7335613a WYG |
334 | if (ret) |
335 | return ret; | |
336 | ||
337 | IWL_DEBUG_INFO(priv, "Start UP work done.\n"); | |
338 | ||
339 | /* Now we should be done, and the READY bit should be set. */ | |
83626404 | 340 | if (WARN_ON(!test_bit(STATUS_READY, &priv->status))) |
7335613a WYG |
341 | ret = -EIO; |
342 | ||
343 | iwlagn_led_enable(priv); | |
344 | ||
345 | priv->is_open = 1; | |
346 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
347 | return 0; | |
348 | } | |
349 | ||
aca86268 | 350 | static void iwlagn_mac_stop(struct ieee80211_hw *hw) |
7335613a | 351 | { |
d0f76d68 | 352 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
353 | |
354 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
355 | ||
356 | if (!priv->is_open) | |
357 | return; | |
358 | ||
359 | priv->is_open = 0; | |
360 | ||
b1eea297 | 361 | mutex_lock(&priv->mutex); |
7335613a | 362 | iwl_down(priv); |
b1eea297 | 363 | mutex_unlock(&priv->mutex); |
78e5a464 EG |
364 | |
365 | iwl_cancel_deferred_work(priv); | |
7335613a | 366 | |
1ee158d8 | 367 | flush_workqueue(priv->workqueue); |
7335613a WYG |
368 | |
369 | /* User space software may expect getting rfkill changes | |
1df06bdc EG |
370 | * even if interface is down, trans->down will leave the RF |
371 | * kill interrupt enabled | |
372 | */ | |
218733cf | 373 | iwl_trans_stop_hw(priv->trans, false); |
7335613a WYG |
374 | |
375 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
376 | } | |
377 | ||
aca86268 JB |
378 | static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw, |
379 | struct ieee80211_vif *vif, | |
380 | struct cfg80211_gtk_rekey_data *data) | |
7335613a | 381 | { |
d0f76d68 | 382 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 383 | |
65de7e84 | 384 | if (iwlwifi_mod_params.sw_crypto) |
7335613a WYG |
385 | return; |
386 | ||
387 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 388 | mutex_lock(&priv->mutex); |
7335613a WYG |
389 | |
390 | if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif) | |
391 | goto out; | |
392 | ||
393 | memcpy(priv->kek, data->kek, NL80211_KEK_LEN); | |
394 | memcpy(priv->kck, data->kck, NL80211_KCK_LEN); | |
395 | priv->replay_ctr = | |
396 | cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); | |
397 | priv->have_rekey_data = true; | |
398 | ||
399 | out: | |
b1eea297 | 400 | mutex_unlock(&priv->mutex); |
7335613a WYG |
401 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
402 | } | |
403 | ||
404 | #ifdef CONFIG_PM_SLEEP | |
7335613a | 405 | |
aca86268 JB |
406 | static int iwlagn_mac_suspend(struct ieee80211_hw *hw, |
407 | struct cfg80211_wowlan *wowlan) | |
7335613a | 408 | { |
d0f76d68 | 409 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 410 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
023ca58f | 411 | int ret; |
7335613a WYG |
412 | |
413 | if (WARN_ON(!wowlan)) | |
414 | return -EINVAL; | |
415 | ||
416 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 417 | mutex_lock(&priv->mutex); |
7335613a WYG |
418 | |
419 | /* Don't attempt WoWLAN when not associated, tear down instead. */ | |
420 | if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION || | |
421 | !iwl_is_associated_ctx(ctx)) { | |
422 | ret = 1; | |
423 | goto out; | |
424 | } | |
425 | ||
ea886a60 | 426 | ret = iwlagn_suspend(priv, wowlan); |
7335613a WYG |
427 | if (ret) |
428 | goto error; | |
429 | ||
8ade6285 JB |
430 | /* let the ucode operate on its own */ |
431 | iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_SET, | |
432 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); | |
433 | ||
debff618 | 434 | iwl_trans_d3_suspend(priv->trans, false); |
7335613a WYG |
435 | |
436 | goto out; | |
437 | ||
438 | error: | |
15b86bff | 439 | priv->wowlan = false; |
7335613a WYG |
440 | iwlagn_prepare_restart(priv); |
441 | ieee80211_restart_hw(priv->hw); | |
442 | out: | |
b1eea297 | 443 | mutex_unlock(&priv->mutex); |
7335613a WYG |
444 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
445 | ||
446 | return ret; | |
447 | } | |
448 | ||
5718d27f JB |
449 | struct iwl_resume_data { |
450 | struct iwl_priv *priv; | |
451 | struct iwlagn_wowlan_status *cmd; | |
452 | bool valid; | |
453 | }; | |
454 | ||
455 | static bool iwl_resume_status_fn(struct iwl_notif_wait_data *notif_wait, | |
456 | struct iwl_rx_packet *pkt, void *data) | |
457 | { | |
458 | struct iwl_resume_data *resume_data = data; | |
459 | struct iwl_priv *priv = resume_data->priv; | |
460 | u32 len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; | |
461 | ||
462 | if (len - 4 != sizeof(*resume_data->cmd)) { | |
463 | IWL_ERR(priv, "rx wrong size data\n"); | |
464 | return true; | |
465 | } | |
466 | memcpy(resume_data->cmd, pkt->data, sizeof(*resume_data->cmd)); | |
467 | resume_data->valid = true; | |
468 | ||
469 | return true; | |
470 | } | |
471 | ||
7335613a WYG |
472 | static int iwlagn_mac_resume(struct ieee80211_hw *hw) |
473 | { | |
d0f76d68 | 474 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
475 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
476 | struct ieee80211_vif *vif; | |
5718d27f JB |
477 | u32 base; |
478 | int ret; | |
479 | enum iwl_d3_status d3_status; | |
480 | struct error_table_start { | |
481 | /* cf. struct iwl_error_event_table */ | |
482 | u32 valid; | |
483 | u32 error_id; | |
484 | } err_info; | |
485 | struct iwl_notification_wait status_wait; | |
486 | static const u8 status_cmd[] = { | |
487 | REPLY_WOWLAN_GET_STATUS, | |
488 | }; | |
489 | struct iwlagn_wowlan_status status_data = {}; | |
490 | struct iwl_resume_data resume_data = { | |
491 | .priv = priv, | |
492 | .cmd = &status_data, | |
493 | .valid = false, | |
494 | }; | |
495 | struct cfg80211_wowlan_wakeup wakeup = { | |
496 | .pattern_idx = -1, | |
497 | }; | |
498 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
499 | const struct fw_img *img; | |
500 | #endif | |
7335613a WYG |
501 | |
502 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 503 | mutex_lock(&priv->mutex); |
7335613a | 504 | |
5718d27f JB |
505 | /* we'll clear ctx->vif during iwlagn_prepare_restart() */ |
506 | vif = ctx->vif; | |
507 | ||
debff618 | 508 | ret = iwl_trans_d3_resume(priv->trans, &d3_status, false); |
5718d27f JB |
509 | if (ret) |
510 | goto out_unlock; | |
511 | ||
512 | if (d3_status != IWL_D3_STATUS_ALIVE) { | |
513 | IWL_INFO(priv, "Device was reset during suspend\n"); | |
514 | goto out_unlock; | |
515 | } | |
7335613a | 516 | |
8ade6285 JB |
517 | /* uCode is no longer operating by itself */ |
518 | iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR, | |
519 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); | |
520 | ||
2fdfc476 | 521 | base = priv->device_pointers.error_event_table; |
5718d27f JB |
522 | if (!iwlagn_hw_valid_rtc_data_addr(base)) { |
523 | IWL_WARN(priv, "Invalid error table during resume!\n"); | |
524 | goto out_unlock; | |
525 | } | |
526 | ||
527 | iwl_trans_read_mem_bytes(priv->trans, base, | |
528 | &err_info, sizeof(err_info)); | |
529 | ||
530 | if (err_info.valid) { | |
531 | IWL_INFO(priv, "error table is valid (%d, 0x%x)\n", | |
532 | err_info.valid, err_info.error_id); | |
533 | if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) { | |
534 | wakeup.rfkill_release = true; | |
535 | ieee80211_report_wowlan_wakeup(vif, &wakeup, | |
536 | GFP_KERNEL); | |
7335613a | 537 | } |
5718d27f JB |
538 | goto out_unlock; |
539 | } | |
7335613a WYG |
540 | |
541 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
5718d27f JB |
542 | img = &priv->fw->img[IWL_UCODE_WOWLAN]; |
543 | if (!priv->wowlan_sram) | |
544 | priv->wowlan_sram = | |
545 | kzalloc(img->sec[IWL_UCODE_SECTION_DATA].len, | |
546 | GFP_KERNEL); | |
547 | ||
548 | if (priv->wowlan_sram) | |
549 | iwl_trans_read_mem(priv->trans, 0x800000, | |
550 | priv->wowlan_sram, | |
551 | img->sec[IWL_UCODE_SECTION_DATA].len / 4); | |
7335613a | 552 | #endif |
7335613a | 553 | |
5718d27f JB |
554 | /* |
555 | * This is very strange. The GET_STATUS command is sent but the device | |
556 | * doesn't reply properly, it seems it doesn't close the RBD so one is | |
557 | * always left open ... As a result, we need to send another command | |
558 | * and have to reset the driver afterwards. As we need to switch to | |
559 | * runtime firmware again that'll happen. | |
560 | */ | |
561 | ||
562 | iwl_init_notification_wait(&priv->notif_wait, &status_wait, status_cmd, | |
563 | ARRAY_SIZE(status_cmd), iwl_resume_status_fn, | |
564 | &resume_data); | |
565 | ||
566 | iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_GET_STATUS, CMD_ASYNC, 0, NULL); | |
567 | iwl_dvm_send_cmd_pdu(priv, REPLY_ECHO, CMD_ASYNC, 0, NULL); | |
568 | /* an RBD is left open in the firmware now! */ | |
569 | ||
570 | ret = iwl_wait_notification(&priv->notif_wait, &status_wait, HZ/5); | |
571 | if (ret) | |
572 | goto out_unlock; | |
573 | ||
574 | if (resume_data.valid && priv->contexts[IWL_RXON_CTX_BSS].vif) { | |
575 | u32 reasons = le32_to_cpu(status_data.wakeup_reason); | |
576 | struct cfg80211_wowlan_wakeup *wakeup_report; | |
577 | ||
578 | IWL_INFO(priv, "WoWLAN wakeup reason(s): 0x%.8x\n", reasons); | |
579 | ||
580 | if (reasons) { | |
581 | if (reasons & IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET) | |
582 | wakeup.magic_pkt = true; | |
583 | if (reasons & IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH) | |
584 | wakeup.pattern_idx = status_data.pattern_number; | |
585 | if (reasons & (IWLAGN_WOWLAN_WAKEUP_BEACON_MISS | | |
586 | IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE)) | |
587 | wakeup.disconnect = true; | |
588 | if (reasons & IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL) | |
589 | wakeup.gtk_rekey_failure = true; | |
590 | if (reasons & IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ) | |
591 | wakeup.eap_identity_req = true; | |
592 | if (reasons & IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE) | |
593 | wakeup.four_way_handshake = true; | |
594 | wakeup_report = &wakeup; | |
595 | } else { | |
596 | wakeup_report = NULL; | |
597 | } | |
598 | ||
599 | ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); | |
600 | } | |
7335613a | 601 | |
15b86bff | 602 | priv->wowlan = false; |
7335613a | 603 | |
7335613a WYG |
604 | iwlagn_prepare_restart(priv); |
605 | ||
606 | memset((void *)&ctx->active, 0, sizeof(ctx->active)); | |
607 | iwl_connection_init_rx_config(priv, ctx); | |
608 | iwlagn_set_rxon_chain(priv, ctx); | |
609 | ||
5718d27f | 610 | out_unlock: |
b1eea297 | 611 | mutex_unlock(&priv->mutex); |
7335613a WYG |
612 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
613 | ||
614 | ieee80211_resume_disconnect(vif); | |
615 | ||
616 | return 1; | |
617 | } | |
618 | ||
76ed2edd JB |
619 | static void iwlagn_mac_set_wakeup(struct ieee80211_hw *hw, bool enabled) |
620 | { | |
621 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
622 | ||
623 | device_set_wakeup_enable(priv->trans->dev, enabled); | |
624 | } | |
7335613a WYG |
625 | #endif |
626 | ||
36323f81 TH |
627 | static void iwlagn_mac_tx(struct ieee80211_hw *hw, |
628 | struct ieee80211_tx_control *control, | |
629 | struct sk_buff *skb) | |
7335613a | 630 | { |
d0f76d68 | 631 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 632 | |
36323f81 | 633 | if (iwlagn_tx_skb(priv, control->sta, skb)) |
31df3bb7 | 634 | ieee80211_free_txskb(hw, skb); |
7335613a WYG |
635 | } |
636 | ||
aca86268 JB |
637 | static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw, |
638 | struct ieee80211_vif *vif, | |
639 | struct ieee80211_key_conf *keyconf, | |
640 | struct ieee80211_sta *sta, | |
641 | u32 iv32, u16 *phase1key) | |
7335613a | 642 | { |
d0f76d68 | 643 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
644 | |
645 | iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key); | |
646 | } | |
647 | ||
aca86268 JB |
648 | static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
649 | struct ieee80211_vif *vif, | |
650 | struct ieee80211_sta *sta, | |
651 | struct ieee80211_key_conf *key) | |
7335613a | 652 | { |
d0f76d68 | 653 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
654 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
655 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
656 | int ret; | |
657 | bool is_default_wep_key = false; | |
658 | ||
659 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
660 | ||
65de7e84 | 661 | if (iwlwifi_mod_params.sw_crypto) { |
7335613a WYG |
662 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); |
663 | return -EOPNOTSUPP; | |
664 | } | |
665 | ||
a7e12c8e JB |
666 | switch (key->cipher) { |
667 | case WLAN_CIPHER_SUITE_TKIP: | |
668 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
669 | /* fall through */ | |
670 | case WLAN_CIPHER_SUITE_CCMP: | |
671 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
672 | break; | |
673 | default: | |
674 | break; | |
675 | } | |
676 | ||
7335613a WYG |
677 | /* |
678 | * We could program these keys into the hardware as well, but we | |
679 | * don't expect much multicast traffic in IBSS and having keys | |
680 | * for more stations is probably more useful. | |
681 | * | |
682 | * Mark key TX-only and return 0. | |
683 | */ | |
684 | if (vif->type == NL80211_IFTYPE_ADHOC && | |
685 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { | |
686 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
687 | return 0; | |
688 | } | |
689 | ||
690 | /* If they key was TX-only, accept deletion */ | |
691 | if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET) | |
692 | return 0; | |
693 | ||
b1eea297 | 694 | mutex_lock(&priv->mutex); |
7335613a WYG |
695 | iwl_scan_cancel_timeout(priv, 100); |
696 | ||
697 | BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT); | |
698 | ||
699 | /* | |
700 | * If we are getting WEP group key and we didn't receive any key mapping | |
701 | * so far, we are in legacy wep mode (group key only), otherwise we are | |
702 | * in 1X mode. | |
703 | * In legacy wep mode, we use another host command to the uCode. | |
704 | */ | |
705 | if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || | |
706 | key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) { | |
707 | if (cmd == SET_KEY) | |
708 | is_default_wep_key = !ctx->key_mapping_keys; | |
709 | else | |
710 | is_default_wep_key = | |
711 | key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT; | |
712 | } | |
713 | ||
714 | ||
715 | switch (cmd) { | |
716 | case SET_KEY: | |
717 | if (is_default_wep_key) { | |
718 | ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key); | |
719 | break; | |
720 | } | |
721 | ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta); | |
722 | if (ret) { | |
723 | /* | |
724 | * can't add key for RX, but we don't need it | |
725 | * in the device for TX so still return 0 | |
726 | */ | |
727 | ret = 0; | |
728 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
729 | } | |
730 | ||
731 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); | |
732 | break; | |
733 | case DISABLE_KEY: | |
734 | if (is_default_wep_key) | |
735 | ret = iwl_remove_default_wep_key(priv, ctx, key); | |
736 | else | |
737 | ret = iwl_remove_dynamic_key(priv, ctx, key, sta); | |
738 | ||
739 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); | |
740 | break; | |
741 | default: | |
742 | ret = -EINVAL; | |
743 | } | |
744 | ||
b1eea297 | 745 | mutex_unlock(&priv->mutex); |
7335613a WYG |
746 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
747 | ||
748 | return ret; | |
749 | } | |
750 | ||
aca86268 JB |
751 | static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, |
752 | struct ieee80211_vif *vif, | |
753 | enum ieee80211_ampdu_mlme_action action, | |
754 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, | |
755 | u8 buf_size) | |
7335613a | 756 | { |
d0f76d68 | 757 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
758 | int ret = -EINVAL; |
759 | struct iwl_station_priv *sta_priv = (void *) sta->drv_priv; | |
7335613a WYG |
760 | |
761 | IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", | |
762 | sta->addr, tid); | |
763 | ||
b7998c8b | 764 | if (!(priv->nvm_data->sku_cap_11n_enable)) |
7335613a WYG |
765 | return -EACCES; |
766 | ||
767 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 768 | mutex_lock(&priv->mutex); |
7335613a WYG |
769 | |
770 | switch (action) { | |
771 | case IEEE80211_AMPDU_RX_START: | |
65de7e84 | 772 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) |
7428994d | 773 | break; |
7335613a WYG |
774 | IWL_DEBUG_HT(priv, "start Rx\n"); |
775 | ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn); | |
776 | break; | |
777 | case IEEE80211_AMPDU_RX_STOP: | |
778 | IWL_DEBUG_HT(priv, "stop Rx\n"); | |
779 | ret = iwl_sta_rx_agg_stop(priv, sta, tid); | |
7335613a WYG |
780 | break; |
781 | case IEEE80211_AMPDU_TX_START: | |
4beaf6c2 | 782 | if (!priv->trans->ops->txq_enable) |
9eae88fa | 783 | break; |
65de7e84 | 784 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) |
7428994d | 785 | break; |
7335613a WYG |
786 | IWL_DEBUG_HT(priv, "start Tx\n"); |
787 | ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn); | |
788 | break; | |
18b559d5 JB |
789 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
790 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
2d055afd EG |
791 | IWL_DEBUG_HT(priv, "Flush Tx\n"); |
792 | ret = iwlagn_tx_agg_flush(priv, vif, sta, tid); | |
793 | break; | |
794 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
7335613a WYG |
795 | IWL_DEBUG_HT(priv, "stop Tx\n"); |
796 | ret = iwlagn_tx_agg_stop(priv, vif, sta, tid); | |
797 | if ((ret == 0) && (priv->agg_tids_count > 0)) { | |
798 | priv->agg_tids_count--; | |
799 | IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", | |
800 | priv->agg_tids_count); | |
801 | } | |
b9ad70da | 802 | if (!priv->agg_tids_count && |
9e295116 | 803 | priv->hw_params.use_rts_for_aggregation) { |
7335613a WYG |
804 | /* |
805 | * switch off RTS/CTS if it was previously enabled | |
806 | */ | |
807 | sta_priv->lq_sta.lq.general_params.flags &= | |
808 | ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; | |
809 | iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), | |
810 | &sta_priv->lq_sta.lq, CMD_ASYNC, false); | |
811 | } | |
812 | break; | |
813 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
822e8b2a | 814 | ret = iwlagn_tx_agg_oper(priv, vif, sta, tid, buf_size); |
7335613a WYG |
815 | break; |
816 | } | |
b1eea297 | 817 | mutex_unlock(&priv->mutex); |
7335613a WYG |
818 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
819 | return ret; | |
820 | } | |
821 | ||
822 | static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, | |
823 | struct ieee80211_vif *vif, | |
824 | struct ieee80211_sta *sta) | |
825 | { | |
d0f76d68 | 826 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
827 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
828 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
829 | bool is_ap = vif->type == NL80211_IFTYPE_STATION; | |
fb5fe5b9 | 830 | int ret; |
7335613a WYG |
831 | u8 sta_id; |
832 | ||
7335613a WYG |
833 | IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", |
834 | sta->addr); | |
835 | sta_priv->sta_id = IWL_INVALID_STATION; | |
836 | ||
837 | atomic_set(&sta_priv->pending_frames, 0); | |
838 | if (vif->type == NL80211_IFTYPE_AP) | |
839 | sta_priv->client = true; | |
840 | ||
841 | ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr, | |
842 | is_ap, sta, &sta_id); | |
843 | if (ret) { | |
844 | IWL_ERR(priv, "Unable to add station %pM (%d)\n", | |
845 | sta->addr, ret); | |
846 | /* Should we return success if return code is EEXIST ? */ | |
fb5fe5b9 | 847 | return ret; |
7335613a WYG |
848 | } |
849 | ||
850 | sta_priv->sta_id = sta_id; | |
851 | ||
fb5fe5b9 JB |
852 | return 0; |
853 | } | |
854 | ||
855 | static int iwlagn_mac_sta_remove(struct ieee80211_hw *hw, | |
856 | struct ieee80211_vif *vif, | |
857 | struct ieee80211_sta *sta) | |
858 | { | |
859 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
860 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
861 | int ret; | |
862 | ||
97420515 JB |
863 | IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", sta->addr); |
864 | ||
865 | if (vif->type == NL80211_IFTYPE_STATION) { | |
866 | /* | |
867 | * Station will be removed from device when the RXON | |
868 | * is set to unassociated -- just deactivate it here | |
869 | * to avoid re-programming it. | |
870 | */ | |
871 | ret = 0; | |
872 | iwl_deactivate_station(priv, sta_priv->sta_id, sta->addr); | |
873 | } else { | |
874 | ret = iwl_remove_station(priv, sta_priv->sta_id, sta->addr); | |
875 | if (ret) | |
876 | IWL_DEBUG_QUIET_RFKILL(priv, | |
877 | "Error removing station %pM\n", sta->addr); | |
878 | } | |
fb5fe5b9 JB |
879 | return ret; |
880 | } | |
881 | ||
aca86268 JB |
882 | static int iwlagn_mac_sta_state(struct ieee80211_hw *hw, |
883 | struct ieee80211_vif *vif, | |
884 | struct ieee80211_sta *sta, | |
885 | enum ieee80211_sta_state old_state, | |
886 | enum ieee80211_sta_state new_state) | |
fb5fe5b9 JB |
887 | { |
888 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
ab0bd5b3 | 889 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
fb5fe5b9 | 890 | enum { |
ab0bd5b3 | 891 | NONE, ADD, REMOVE, HT_RATE_INIT, ADD_RATE_INIT, |
fb5fe5b9 JB |
892 | } op = NONE; |
893 | int ret; | |
894 | ||
895 | IWL_DEBUG_MAC80211(priv, "station %pM state change %d->%d\n", | |
896 | sta->addr, old_state, new_state); | |
897 | ||
b1eea297 | 898 | mutex_lock(&priv->mutex); |
fb5fe5b9 JB |
899 | if (vif->type == NL80211_IFTYPE_STATION) { |
900 | if (old_state == IEEE80211_STA_NOTEXIST && | |
901 | new_state == IEEE80211_STA_NONE) | |
902 | op = ADD; | |
903 | else if (old_state == IEEE80211_STA_NONE && | |
904 | new_state == IEEE80211_STA_NOTEXIST) | |
905 | op = REMOVE; | |
906 | else if (old_state == IEEE80211_STA_AUTH && | |
907 | new_state == IEEE80211_STA_ASSOC) | |
ab0bd5b3 | 908 | op = HT_RATE_INIT; |
fb5fe5b9 JB |
909 | } else { |
910 | if (old_state == IEEE80211_STA_AUTH && | |
911 | new_state == IEEE80211_STA_ASSOC) | |
912 | op = ADD_RATE_INIT; | |
913 | else if (old_state == IEEE80211_STA_ASSOC && | |
914 | new_state == IEEE80211_STA_AUTH) | |
915 | op = REMOVE; | |
916 | } | |
917 | ||
918 | switch (op) { | |
919 | case ADD: | |
920 | ret = iwlagn_mac_sta_add(hw, vif, sta); | |
eac9ac6d JB |
921 | if (ret) |
922 | break; | |
923 | /* | |
924 | * Clear the in-progress flag, the AP station entry was added | |
925 | * but we'll initialize LQ only when we've associated (which | |
926 | * would also clear the in-progress flag). This is necessary | |
927 | * in case we never initialize LQ because association fails. | |
928 | */ | |
929 | spin_lock_bh(&priv->sta_lock); | |
930 | priv->stations[iwl_sta_id(sta)].used &= | |
931 | ~IWL_STA_UCODE_INPROGRESS; | |
932 | spin_unlock_bh(&priv->sta_lock); | |
fb5fe5b9 JB |
933 | break; |
934 | case REMOVE: | |
935 | ret = iwlagn_mac_sta_remove(hw, vif, sta); | |
936 | break; | |
937 | case ADD_RATE_INIT: | |
938 | ret = iwlagn_mac_sta_add(hw, vif, sta); | |
939 | if (ret) | |
940 | break; | |
fb5fe5b9 JB |
941 | /* Initialize rate scaling */ |
942 | IWL_DEBUG_INFO(priv, | |
943 | "Initializing rate scaling for station %pM\n", | |
944 | sta->addr); | |
945 | iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); | |
946 | ret = 0; | |
947 | break; | |
ab0bd5b3 JB |
948 | case HT_RATE_INIT: |
949 | /* Initialize rate scaling */ | |
950 | ret = iwl_sta_update_ht(priv, vif_priv->ctx, sta); | |
951 | if (ret) | |
952 | break; | |
953 | IWL_DEBUG_INFO(priv, | |
954 | "Initializing rate scaling for station %pM\n", | |
955 | sta->addr); | |
956 | iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); | |
957 | ret = 0; | |
958 | break; | |
fb5fe5b9 JB |
959 | default: |
960 | ret = 0; | |
961 | break; | |
962 | } | |
963 | ||
964 | /* | |
965 | * mac80211 might WARN if we fail, but due the way we | |
966 | * (badly) handle hard rfkill, we might fail here | |
967 | */ | |
83626404 | 968 | if (iwl_is_rfkill(priv)) |
fb5fe5b9 JB |
969 | ret = 0; |
970 | ||
b1eea297 | 971 | mutex_unlock(&priv->mutex); |
7335613a WYG |
972 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
973 | ||
974 | return ret; | |
975 | } | |
976 | ||
aca86268 JB |
977 | static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, |
978 | struct ieee80211_channel_switch *ch_switch) | |
7335613a | 979 | { |
d0f76d68 | 980 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 981 | struct ieee80211_conf *conf = &hw->conf; |
85220d71 | 982 | struct ieee80211_channel *channel = ch_switch->chandef.chan; |
7335613a WYG |
983 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; |
984 | /* | |
985 | * MULTI-FIXME | |
986 | * When we add support for multiple interfaces, we need to | |
987 | * revisit this. The channel switch command in the device | |
988 | * only affects the BSS context, but what does that really | |
989 | * mean? And what if we get a CSA on the second interface? | |
990 | * This needs a lot of work. | |
991 | */ | |
992 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
993 | u16 ch; | |
994 | ||
995 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
996 | ||
b1eea297 | 997 | mutex_lock(&priv->mutex); |
7335613a | 998 | |
83626404 | 999 | if (iwl_is_rfkill(priv)) |
7335613a WYG |
1000 | goto out; |
1001 | ||
83626404 DF |
1002 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || |
1003 | test_bit(STATUS_SCANNING, &priv->status) || | |
1004 | test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) | |
7335613a WYG |
1005 | goto out; |
1006 | ||
1007 | if (!iwl_is_associated_ctx(ctx)) | |
1008 | goto out; | |
1009 | ||
e9676695 | 1010 | if (!priv->lib->set_channel_switch) |
7335613a WYG |
1011 | goto out; |
1012 | ||
1013 | ch = channel->hw_value; | |
1014 | if (le16_to_cpu(ctx->active.channel) == ch) | |
1015 | goto out; | |
1016 | ||
7335613a WYG |
1017 | priv->current_ht_config.smps = conf->smps_mode; |
1018 | ||
1019 | /* Configure HT40 channels */ | |
85220d71 JB |
1020 | switch (cfg80211_get_chandef_type(&ch_switch->chandef)) { |
1021 | case NL80211_CHAN_NO_HT: | |
1022 | case NL80211_CHAN_HT20: | |
7335613a | 1023 | ctx->ht.is_40mhz = false; |
85220d71 JB |
1024 | ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE; |
1025 | break; | |
1026 | case NL80211_CHAN_HT40MINUS: | |
1027 | ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
1028 | ctx->ht.is_40mhz = true; | |
1029 | break; | |
1030 | case NL80211_CHAN_HT40PLUS: | |
1031 | ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
1032 | ctx->ht.is_40mhz = true; | |
1033 | break; | |
1034 | } | |
7335613a WYG |
1035 | |
1036 | if ((le16_to_cpu(ctx->staging.channel) != ch)) | |
1037 | ctx->staging.flags = 0; | |
1038 | ||
1039 | iwl_set_rxon_channel(priv, channel, ctx); | |
1040 | iwl_set_rxon_ht(priv, ht_conf); | |
1041 | iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif); | |
1042 | ||
7335613a WYG |
1043 | /* |
1044 | * at this point, staging_rxon has the | |
1045 | * configuration for channel switch | |
1046 | */ | |
83626404 | 1047 | set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); |
7335613a | 1048 | priv->switch_channel = cpu_to_le16(ch); |
e9676695 | 1049 | if (priv->lib->set_channel_switch(priv, ch_switch)) { |
83626404 | 1050 | clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); |
7335613a WYG |
1051 | priv->switch_channel = 0; |
1052 | ieee80211_chswitch_done(ctx->vif, false); | |
1053 | } | |
1054 | ||
1055 | out: | |
b1eea297 | 1056 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1057 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1058 | } | |
1059 | ||
bedec3a6 MV |
1060 | void iwl_chswitch_done(struct iwl_priv *priv, bool is_success) |
1061 | { | |
1062 | /* | |
1063 | * MULTI-FIXME | |
1064 | * See iwlagn_mac_channel_switch. | |
1065 | */ | |
1066 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
1067 | ||
1068 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
1069 | return; | |
1070 | ||
9186a1fd SG |
1071 | if (!test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) |
1072 | return; | |
1073 | ||
1074 | if (ctx->vif) | |
bedec3a6 MV |
1075 | ieee80211_chswitch_done(ctx->vif, is_success); |
1076 | } | |
1077 | ||
aca86268 JB |
1078 | static void iwlagn_configure_filter(struct ieee80211_hw *hw, |
1079 | unsigned int changed_flags, | |
1080 | unsigned int *total_flags, | |
1081 | u64 multicast) | |
7335613a | 1082 | { |
d0f76d68 | 1083 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
1084 | __le32 filter_or = 0, filter_nand = 0; |
1085 | struct iwl_rxon_context *ctx; | |
1086 | ||
1087 | #define CHK(test, flag) do { \ | |
1088 | if (*total_flags & (test)) \ | |
1089 | filter_or |= (flag); \ | |
1090 | else \ | |
1091 | filter_nand |= (flag); \ | |
1092 | } while (0) | |
1093 | ||
1094 | IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", | |
1095 | changed_flags, *total_flags); | |
1096 | ||
1097 | CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); | |
1098 | /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */ | |
1099 | CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK); | |
1100 | CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); | |
1101 | ||
1102 | #undef CHK | |
1103 | ||
b1eea297 | 1104 | mutex_lock(&priv->mutex); |
7335613a WYG |
1105 | |
1106 | for_each_context(priv, ctx) { | |
1107 | ctx->staging.filter_flags &= ~filter_nand; | |
1108 | ctx->staging.filter_flags |= filter_or; | |
1109 | ||
1110 | /* | |
1111 | * Not committing directly because hardware can perform a scan, | |
1112 | * but we'll eventually commit the filter flags change anyway. | |
1113 | */ | |
1114 | } | |
1115 | ||
b1eea297 | 1116 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1117 | |
1118 | /* | |
1119 | * Receiving all multicast frames is always enabled by the | |
1120 | * default flags setup in iwl_connection_init_rx_config() | |
1121 | * since we currently do not support programming multicast | |
1122 | * filters into the device. | |
1123 | */ | |
1124 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | | |
1125 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; | |
1126 | } | |
1127 | ||
39ecc01d | 1128 | static void iwlagn_mac_flush(struct ieee80211_hw *hw, u32 queues, bool drop) |
7335613a | 1129 | { |
d0f76d68 | 1130 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 1131 | |
b1eea297 | 1132 | mutex_lock(&priv->mutex); |
7335613a WYG |
1133 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
1134 | ||
83626404 | 1135 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
7335613a WYG |
1136 | IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n"); |
1137 | goto done; | |
1138 | } | |
83626404 | 1139 | if (iwl_is_rfkill(priv)) { |
7335613a WYG |
1140 | IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n"); |
1141 | goto done; | |
1142 | } | |
1143 | ||
1144 | /* | |
1145 | * mac80211 will not push any more frames for transmit | |
1146 | * until the flush is completed | |
1147 | */ | |
1148 | if (drop) { | |
1149 | IWL_DEBUG_MAC80211(priv, "send flush command\n"); | |
2d055afd | 1150 | if (iwlagn_txfifo_flush(priv, 0)) { |
7335613a WYG |
1151 | IWL_ERR(priv, "flush request fail\n"); |
1152 | goto done; | |
1153 | } | |
1154 | } | |
1155 | IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n"); | |
68e8dfda | 1156 | iwl_trans_wait_tx_queue_empty(priv->trans); |
7335613a | 1157 | done: |
b1eea297 | 1158 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1159 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1160 | } | |
1161 | ||
1162 | static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw, | |
49884568 | 1163 | struct ieee80211_vif *vif, |
7335613a | 1164 | struct ieee80211_channel *channel, |
d339d5ca IP |
1165 | int duration, |
1166 | enum ieee80211_roc_type type) | |
7335613a | 1167 | { |
d0f76d68 | 1168 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
1169 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN]; |
1170 | int err = 0; | |
1171 | ||
a18f61bc | 1172 | if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) |
7335613a WYG |
1173 | return -EOPNOTSUPP; |
1174 | ||
1175 | if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT))) | |
1176 | return -EOPNOTSUPP; | |
1177 | ||
1178 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 1179 | mutex_lock(&priv->mutex); |
7335613a | 1180 | |
83626404 | 1181 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { |
601968b3 JB |
1182 | /* mac80211 should not scan while ROC or ROC while scanning */ |
1183 | if (WARN_ON_ONCE(priv->scan_type != IWL_SCAN_RADIO_RESET)) { | |
1184 | err = -EBUSY; | |
1185 | goto out; | |
1186 | } | |
1187 | ||
1188 | iwl_scan_cancel_timeout(priv, 100); | |
1189 | ||
1190 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { | |
1191 | err = -EBUSY; | |
1192 | goto out; | |
1193 | } | |
7335613a WYG |
1194 | } |
1195 | ||
1196 | priv->hw_roc_channel = channel; | |
3ddf6bef JB |
1197 | /* convert from ms to TU */ |
1198 | priv->hw_roc_duration = DIV_ROUND_UP(1000 * duration, 1024); | |
7335613a WYG |
1199 | priv->hw_roc_start_notified = false; |
1200 | cancel_delayed_work(&priv->hw_roc_disable_work); | |
1201 | ||
1202 | if (!ctx->is_active) { | |
a69cd040 JB |
1203 | static const struct iwl_qos_info default_qos_data = { |
1204 | .def_qos_parm = { | |
1205 | .ac[0] = { | |
1206 | .cw_min = cpu_to_le16(3), | |
1207 | .cw_max = cpu_to_le16(7), | |
1208 | .aifsn = 2, | |
1209 | .edca_txop = cpu_to_le16(1504), | |
1210 | }, | |
1211 | .ac[1] = { | |
1212 | .cw_min = cpu_to_le16(7), | |
1213 | .cw_max = cpu_to_le16(15), | |
1214 | .aifsn = 2, | |
1215 | .edca_txop = cpu_to_le16(3008), | |
1216 | }, | |
1217 | .ac[2] = { | |
1218 | .cw_min = cpu_to_le16(15), | |
1219 | .cw_max = cpu_to_le16(1023), | |
1220 | .aifsn = 3, | |
1221 | }, | |
1222 | .ac[3] = { | |
1223 | .cw_min = cpu_to_le16(15), | |
1224 | .cw_max = cpu_to_le16(1023), | |
1225 | .aifsn = 7, | |
1226 | }, | |
1227 | }, | |
1228 | }; | |
1229 | ||
7335613a | 1230 | ctx->is_active = true; |
a69cd040 | 1231 | ctx->qos_data = default_qos_data; |
7335613a WYG |
1232 | ctx->staging.dev_type = RXON_DEV_TYPE_P2P; |
1233 | memcpy(ctx->staging.node_addr, | |
1234 | priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, | |
1235 | ETH_ALEN); | |
1236 | memcpy(ctx->staging.bssid_addr, | |
1237 | priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, | |
1238 | ETH_ALEN); | |
1239 | err = iwlagn_commit_rxon(priv, ctx); | |
1240 | if (err) | |
1241 | goto out; | |
1242 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK | | |
1243 | RXON_FILTER_PROMISC_MSK | | |
1244 | RXON_FILTER_CTL2HOST_MSK; | |
1245 | ||
1246 | err = iwlagn_commit_rxon(priv, ctx); | |
1247 | if (err) { | |
1248 | iwlagn_disable_roc(priv); | |
1249 | goto out; | |
1250 | } | |
1251 | priv->hw_roc_setup = true; | |
1252 | } | |
1253 | ||
1254 | err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band); | |
1255 | if (err) | |
1256 | iwlagn_disable_roc(priv); | |
1257 | ||
1258 | out: | |
b1eea297 | 1259 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1260 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1261 | ||
1262 | return err; | |
1263 | } | |
1264 | ||
aca86268 | 1265 | static int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw *hw) |
7335613a | 1266 | { |
d0f76d68 | 1267 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 1268 | |
a18f61bc | 1269 | if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) |
7335613a WYG |
1270 | return -EOPNOTSUPP; |
1271 | ||
1272 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 1273 | mutex_lock(&priv->mutex); |
7335613a WYG |
1274 | iwl_scan_cancel_timeout(priv, priv->hw_roc_duration); |
1275 | iwlagn_disable_roc(priv); | |
b1eea297 | 1276 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1277 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1278 | ||
1279 | return 0; | |
1280 | } | |
1281 | ||
aca86268 | 1282 | static void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw, |
887da917 | 1283 | struct ieee80211_vif *vif, |
aca86268 | 1284 | enum ieee80211_rssi_event rssi_event) |
7335613a | 1285 | { |
d0f76d68 | 1286 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
1287 | |
1288 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 1289 | mutex_lock(&priv->mutex); |
7335613a | 1290 | |
0d8877a1 JB |
1291 | if (priv->lib->bt_params && |
1292 | priv->lib->bt_params->advanced_bt_coexist) { | |
7335613a WYG |
1293 | if (rssi_event == RSSI_EVENT_LOW) |
1294 | priv->bt_enable_pspoll = true; | |
1295 | else if (rssi_event == RSSI_EVENT_HIGH) | |
1296 | priv->bt_enable_pspoll = false; | |
1297 | ||
1298 | iwlagn_send_advance_bt_config(priv); | |
1299 | } else { | |
1300 | IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled," | |
1301 | "ignoring RSSI callback\n"); | |
1302 | } | |
1303 | ||
b1eea297 | 1304 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1305 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1306 | } | |
1307 | ||
aca86268 JB |
1308 | static int iwlagn_mac_set_tim(struct ieee80211_hw *hw, |
1309 | struct ieee80211_sta *sta, bool set) | |
7335613a | 1310 | { |
d0f76d68 | 1311 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 1312 | |
1ee158d8 | 1313 | queue_work(priv->workqueue, &priv->beacon_update); |
7335613a WYG |
1314 | |
1315 | return 0; | |
1316 | } | |
1317 | ||
aca86268 JB |
1318 | static int iwlagn_mac_conf_tx(struct ieee80211_hw *hw, |
1319 | struct ieee80211_vif *vif, u16 queue, | |
1320 | const struct ieee80211_tx_queue_params *params) | |
0b7a4c78 | 1321 | { |
d0f76d68 | 1322 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1323 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
1324 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
0b7a4c78 WYG |
1325 | int q; |
1326 | ||
1327 | if (WARN_ON(!ctx)) | |
1328 | return -EINVAL; | |
1329 | ||
1330 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1331 | ||
83626404 | 1332 | if (!iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1333 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
1334 | return -EIO; | |
1335 | } | |
1336 | ||
1337 | if (queue >= AC_NUM) { | |
1338 | IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); | |
1339 | return 0; | |
1340 | } | |
1341 | ||
1342 | q = AC_NUM - 1 - queue; | |
1343 | ||
b1eea297 | 1344 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1345 | |
1346 | ctx->qos_data.def_qos_parm.ac[q].cw_min = | |
1347 | cpu_to_le16(params->cw_min); | |
1348 | ctx->qos_data.def_qos_parm.ac[q].cw_max = | |
1349 | cpu_to_le16(params->cw_max); | |
1350 | ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
1351 | ctx->qos_data.def_qos_parm.ac[q].edca_txop = | |
1352 | cpu_to_le16((params->txop * 32)); | |
1353 | ||
1354 | ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
1355 | ||
b1eea297 | 1356 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1357 | |
1358 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1359 | return 0; | |
1360 | } | |
1361 | ||
aca86268 | 1362 | static int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw) |
0b7a4c78 | 1363 | { |
d0f76d68 | 1364 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1365 | |
1366 | return priv->ibss_manager == IWL_IBSS_MANAGER; | |
1367 | } | |
1368 | ||
1369 | static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx) | |
1370 | { | |
1371 | iwl_connection_init_rx_config(priv, ctx); | |
1372 | ||
1373 | iwlagn_set_rxon_chain(priv, ctx); | |
1374 | ||
1375 | return iwlagn_commit_rxon(priv, ctx); | |
1376 | } | |
1377 | ||
aca86268 JB |
1378 | static int iwl_setup_interface(struct iwl_priv *priv, |
1379 | struct iwl_rxon_context *ctx) | |
0b7a4c78 WYG |
1380 | { |
1381 | struct ieee80211_vif *vif = ctx->vif; | |
1479177b | 1382 | int err, ac; |
0b7a4c78 | 1383 | |
b1eea297 | 1384 | lockdep_assert_held(&priv->mutex); |
0b7a4c78 WYG |
1385 | |
1386 | /* | |
1387 | * This variable will be correct only when there's just | |
1388 | * a single context, but all code using it is for hardware | |
1389 | * that supports only one context. | |
1390 | */ | |
1391 | priv->iw_mode = vif->type; | |
1392 | ||
1393 | ctx->is_active = true; | |
1394 | ||
1395 | err = iwl_set_mode(priv, ctx); | |
1396 | if (err) { | |
1397 | if (!ctx->always_active) | |
1398 | ctx->is_active = false; | |
1399 | return err; | |
1400 | } | |
1401 | ||
0d8877a1 | 1402 | if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist && |
0b7a4c78 WYG |
1403 | vif->type == NL80211_IFTYPE_ADHOC) { |
1404 | /* | |
1405 | * pretend to have high BT traffic as long as we | |
1406 | * are operating in IBSS mode, as this will cause | |
1407 | * the rate scaling etc. to behave as intended. | |
1408 | */ | |
1409 | priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH; | |
1410 | } | |
1411 | ||
1479177b JB |
1412 | /* set up queue mappings */ |
1413 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
1414 | vif->hw_queue[ac] = ctx->ac_to_queue[ac]; | |
1415 | ||
1416 | if (vif->type == NL80211_IFTYPE_AP) | |
1417 | vif->cab_queue = ctx->mcast_queue; | |
1418 | else | |
1419 | vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; | |
1420 | ||
0b7a4c78 WYG |
1421 | return 0; |
1422 | } | |
1423 | ||
1424 | static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, | |
1479177b | 1425 | struct ieee80211_vif *vif) |
0b7a4c78 | 1426 | { |
d0f76d68 | 1427 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1428 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
1429 | struct iwl_rxon_context *tmp, *ctx = NULL; | |
1430 | int err; | |
1431 | enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif); | |
8db4c7e2 | 1432 | bool reset = false; |
0b7a4c78 WYG |
1433 | |
1434 | IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n", | |
1435 | viftype, vif->addr); | |
1436 | ||
1437 | cancel_delayed_work_sync(&priv->hw_roc_disable_work); | |
1438 | ||
b1eea297 | 1439 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1440 | |
1441 | iwlagn_disable_roc(priv); | |
1442 | ||
83626404 | 1443 | if (!iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1444 | IWL_WARN(priv, "Try to add interface when device not ready\n"); |
1445 | err = -EINVAL; | |
1446 | goto out; | |
1447 | } | |
1448 | ||
1449 | for_each_context(priv, tmp) { | |
1450 | u32 possible_modes = | |
1451 | tmp->interface_modes | tmp->exclusive_interface_modes; | |
1452 | ||
1453 | if (tmp->vif) { | |
8db4c7e2 SG |
1454 | /* On reset we need to add the same interface again */ |
1455 | if (tmp->vif == vif) { | |
1456 | reset = true; | |
1457 | ctx = tmp; | |
1458 | break; | |
1459 | } | |
1460 | ||
0b7a4c78 WYG |
1461 | /* check if this busy context is exclusive */ |
1462 | if (tmp->exclusive_interface_modes & | |
1463 | BIT(tmp->vif->type)) { | |
1464 | err = -EINVAL; | |
1465 | goto out; | |
1466 | } | |
1467 | continue; | |
1468 | } | |
1469 | ||
1470 | if (!(possible_modes & BIT(viftype))) | |
1471 | continue; | |
1472 | ||
1473 | /* have maybe usable context w/o interface */ | |
1474 | ctx = tmp; | |
1475 | break; | |
1476 | } | |
1477 | ||
1478 | if (!ctx) { | |
1479 | err = -EOPNOTSUPP; | |
1480 | goto out; | |
1481 | } | |
1482 | ||
1483 | vif_priv->ctx = ctx; | |
1484 | ctx->vif = vif; | |
1485 | ||
04baaa27 JB |
1486 | /* |
1487 | * In SNIFFER device type, the firmware reports the FCS to | |
1488 | * the host, rather than snipping it off. Unfortunately, | |
1489 | * mac80211 doesn't (yet) provide a per-packet flag for | |
1490 | * this, so that we have to set the hardware flag based | |
1491 | * on the interfaces added. As the monitor interface can | |
1492 | * only be present by itself, and will be removed before | |
1493 | * other interfaces are added, this is safe. | |
1494 | */ | |
1495 | if (vif->type == NL80211_IFTYPE_MONITOR) | |
1496 | priv->hw->flags |= IEEE80211_HW_RX_INCLUDES_FCS; | |
1497 | else | |
1498 | priv->hw->flags &= ~IEEE80211_HW_RX_INCLUDES_FCS; | |
1499 | ||
0b7a4c78 | 1500 | err = iwl_setup_interface(priv, ctx); |
8db4c7e2 | 1501 | if (!err || reset) |
0b7a4c78 WYG |
1502 | goto out; |
1503 | ||
1504 | ctx->vif = NULL; | |
1505 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
1506 | out: | |
b1eea297 | 1507 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1508 | |
1509 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1510 | return err; | |
1511 | } | |
1512 | ||
aca86268 JB |
1513 | static void iwl_teardown_interface(struct iwl_priv *priv, |
1514 | struct ieee80211_vif *vif, | |
1515 | bool mode_change) | |
0b7a4c78 WYG |
1516 | { |
1517 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); | |
1518 | ||
b1eea297 | 1519 | lockdep_assert_held(&priv->mutex); |
0b7a4c78 WYG |
1520 | |
1521 | if (priv->scan_vif == vif) { | |
1522 | iwl_scan_cancel_timeout(priv, 200); | |
1523 | iwl_force_scan_end(priv); | |
1524 | } | |
1525 | ||
1526 | if (!mode_change) { | |
1527 | iwl_set_mode(priv, ctx); | |
1528 | if (!ctx->always_active) | |
1529 | ctx->is_active = false; | |
1530 | } | |
1531 | ||
1532 | /* | |
1533 | * When removing the IBSS interface, overwrite the | |
1534 | * BT traffic load with the stored one from the last | |
1535 | * notification, if any. If this is a device that | |
1536 | * doesn't implement this, this has no effect since | |
1537 | * both values are the same and zero. | |
1538 | */ | |
1539 | if (vif->type == NL80211_IFTYPE_ADHOC) | |
1540 | priv->bt_traffic_load = priv->last_bt_traffic_load; | |
1541 | } | |
1542 | ||
1543 | static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw, | |
1544 | struct ieee80211_vif *vif) | |
1545 | { | |
d0f76d68 | 1546 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1547 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
1548 | ||
1549 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1550 | ||
b1eea297 | 1551 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1552 | |
1553 | if (WARN_ON(ctx->vif != vif)) { | |
1554 | struct iwl_rxon_context *tmp; | |
1555 | IWL_ERR(priv, "ctx->vif = %p, vif = %p\n", ctx->vif, vif); | |
1556 | for_each_context(priv, tmp) | |
1557 | IWL_ERR(priv, "\tID = %d:\tctx = %p\tctx->vif = %p\n", | |
1558 | tmp->ctxid, tmp, tmp->vif); | |
1559 | } | |
1560 | ctx->vif = NULL; | |
1561 | ||
1562 | iwl_teardown_interface(priv, vif, false); | |
1563 | ||
b1eea297 | 1564 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1565 | |
1566 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1567 | ||
1568 | } | |
1569 | ||
1570 | static int iwlagn_mac_change_interface(struct ieee80211_hw *hw, | |
e75dac92 JB |
1571 | struct ieee80211_vif *vif, |
1572 | enum nl80211_iftype newtype, bool newp2p) | |
0b7a4c78 | 1573 | { |
d0f76d68 | 1574 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
e75dac92 | 1575 | struct iwl_rxon_context *ctx, *tmp; |
0b7a4c78 WYG |
1576 | enum nl80211_iftype newviftype = newtype; |
1577 | u32 interface_modes; | |
1578 | int err; | |
1579 | ||
1580 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1581 | ||
1582 | newtype = ieee80211_iftype_p2p(newtype, newp2p); | |
1583 | ||
b1eea297 | 1584 | mutex_lock(&priv->mutex); |
0b7a4c78 | 1585 | |
e75dac92 JB |
1586 | ctx = iwl_rxon_ctx_from_vif(vif); |
1587 | ||
1588 | /* | |
1589 | * To simplify this code, only support changes on the | |
1590 | * BSS context. The PAN context is usually reassigned | |
1591 | * by creating/removing P2P interfaces anyway. | |
1592 | */ | |
1593 | if (ctx->ctxid != IWL_RXON_CTX_BSS) { | |
1594 | err = -EBUSY; | |
1595 | goto out; | |
1596 | } | |
1597 | ||
83626404 | 1598 | if (!ctx->vif || !iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1599 | /* |
1600 | * Huh? But wait ... this can maybe happen when | |
1601 | * we're in the middle of a firmware restart! | |
1602 | */ | |
1603 | err = -EBUSY; | |
1604 | goto out; | |
1605 | } | |
1606 | ||
e75dac92 | 1607 | /* Check if the switch is supported in the same context */ |
0b7a4c78 | 1608 | interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes; |
0b7a4c78 WYG |
1609 | if (!(interface_modes & BIT(newtype))) { |
1610 | err = -EBUSY; | |
1611 | goto out; | |
1612 | } | |
1613 | ||
0b7a4c78 WYG |
1614 | if (ctx->exclusive_interface_modes & BIT(newtype)) { |
1615 | for_each_context(priv, tmp) { | |
1616 | if (ctx == tmp) | |
1617 | continue; | |
1618 | ||
e75dac92 | 1619 | if (!tmp->is_active) |
0b7a4c78 WYG |
1620 | continue; |
1621 | ||
1622 | /* | |
1623 | * The current mode switch would be exclusive, but | |
1624 | * another context is active ... refuse the switch. | |
1625 | */ | |
1626 | err = -EBUSY; | |
1627 | goto out; | |
1628 | } | |
1629 | } | |
1630 | ||
1631 | /* success */ | |
1632 | iwl_teardown_interface(priv, vif, true); | |
1633 | vif->type = newviftype; | |
1634 | vif->p2p = newp2p; | |
1635 | err = iwl_setup_interface(priv, ctx); | |
1636 | WARN_ON(err); | |
1637 | /* | |
1638 | * We've switched internally, but submitting to the | |
1639 | * device may have failed for some reason. Mask this | |
1640 | * error, because otherwise mac80211 will not switch | |
1641 | * (and set the interface type back) and we'll be | |
1642 | * out of sync with it. | |
1643 | */ | |
1644 | err = 0; | |
1645 | ||
1646 | out: | |
b1eea297 | 1647 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1648 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1649 | ||
1650 | return err; | |
1651 | } | |
1652 | ||
aca86268 JB |
1653 | static int iwlagn_mac_hw_scan(struct ieee80211_hw *hw, |
1654 | struct ieee80211_vif *vif, | |
1655 | struct cfg80211_scan_request *req) | |
ba4c5319 | 1656 | { |
d0f76d68 | 1657 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
ba4c5319 WYG |
1658 | int ret; |
1659 | ||
1660 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1661 | ||
1662 | if (req->n_channels == 0) | |
1663 | return -EINVAL; | |
1664 | ||
b1eea297 | 1665 | mutex_lock(&priv->mutex); |
ba4c5319 WYG |
1666 | |
1667 | /* | |
1668 | * If an internal scan is in progress, just set | |
1669 | * up the scan_request as per above. | |
1670 | */ | |
1671 | if (priv->scan_type != IWL_SCAN_NORMAL) { | |
1672 | IWL_DEBUG_SCAN(priv, | |
1673 | "SCAN request during internal scan - defer\n"); | |
1674 | priv->scan_request = req; | |
1675 | priv->scan_vif = vif; | |
1676 | ret = 0; | |
1677 | } else { | |
1678 | priv->scan_request = req; | |
1679 | priv->scan_vif = vif; | |
1680 | /* | |
1681 | * mac80211 will only ask for one band at a time | |
1682 | * so using channels[0] here is ok | |
1683 | */ | |
1684 | ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL, | |
1685 | req->channels[0]->band); | |
1686 | if (ret) { | |
1687 | priv->scan_request = NULL; | |
1688 | priv->scan_vif = NULL; | |
1689 | } | |
1690 | } | |
1691 | ||
1692 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1693 | ||
b1eea297 | 1694 | mutex_unlock(&priv->mutex); |
ba4c5319 WYG |
1695 | |
1696 | return ret; | |
1697 | } | |
1698 | ||
76b29331 WYG |
1699 | static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id) |
1700 | { | |
9451ca1a JB |
1701 | struct iwl_addsta_cmd cmd = { |
1702 | .mode = STA_CONTROL_MODIFY_MSK, | |
1703 | .station_flags_msk = STA_FLG_PWR_SAVE_MSK, | |
1704 | .sta.sta_id = sta_id, | |
1705 | }; | |
76b29331 | 1706 | |
9451ca1a | 1707 | iwl_send_add_sta(priv, &cmd, CMD_ASYNC); |
76b29331 WYG |
1708 | } |
1709 | ||
aca86268 JB |
1710 | static void iwlagn_mac_sta_notify(struct ieee80211_hw *hw, |
1711 | struct ieee80211_vif *vif, | |
1712 | enum sta_notify_cmd cmd, | |
1713 | struct ieee80211_sta *sta) | |
76b29331 | 1714 | { |
d0f76d68 | 1715 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
76b29331 WYG |
1716 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
1717 | int sta_id; | |
1718 | ||
1719 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1720 | ||
1721 | switch (cmd) { | |
1722 | case STA_NOTIFY_SLEEP: | |
1723 | WARN_ON(!sta_priv->client); | |
1724 | sta_priv->asleep = true; | |
1725 | if (atomic_read(&sta_priv->pending_frames) > 0) | |
1726 | ieee80211_sta_block_awake(hw, sta, true); | |
1727 | break; | |
1728 | case STA_NOTIFY_AWAKE: | |
1729 | WARN_ON(!sta_priv->client); | |
1730 | if (!sta_priv->asleep) | |
1731 | break; | |
1732 | sta_priv->asleep = false; | |
1733 | sta_id = iwl_sta_id(sta); | |
1734 | if (sta_id != IWL_INVALID_STATION) | |
1735 | iwl_sta_modify_ps_wake(priv, sta_id); | |
1736 | break; | |
1737 | default: | |
1738 | break; | |
1739 | } | |
1740 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1741 | } | |
1742 | ||
7335613a WYG |
1743 | struct ieee80211_ops iwlagn_hw_ops = { |
1744 | .tx = iwlagn_mac_tx, | |
1745 | .start = iwlagn_mac_start, | |
1746 | .stop = iwlagn_mac_stop, | |
1747 | #ifdef CONFIG_PM_SLEEP | |
1748 | .suspend = iwlagn_mac_suspend, | |
1749 | .resume = iwlagn_mac_resume, | |
76ed2edd | 1750 | .set_wakeup = iwlagn_mac_set_wakeup, |
7335613a WYG |
1751 | #endif |
1752 | .add_interface = iwlagn_mac_add_interface, | |
1753 | .remove_interface = iwlagn_mac_remove_interface, | |
1754 | .change_interface = iwlagn_mac_change_interface, | |
1755 | .config = iwlagn_mac_config, | |
1756 | .configure_filter = iwlagn_configure_filter, | |
1757 | .set_key = iwlagn_mac_set_key, | |
1758 | .update_tkip_key = iwlagn_mac_update_tkip_key, | |
1759 | .set_rekey_data = iwlagn_mac_set_rekey_data, | |
1760 | .conf_tx = iwlagn_mac_conf_tx, | |
1761 | .bss_info_changed = iwlagn_bss_info_changed, | |
1762 | .ampdu_action = iwlagn_mac_ampdu_action, | |
1763 | .hw_scan = iwlagn_mac_hw_scan, | |
1764 | .sta_notify = iwlagn_mac_sta_notify, | |
fb5fe5b9 | 1765 | .sta_state = iwlagn_mac_sta_state, |
7335613a WYG |
1766 | .channel_switch = iwlagn_mac_channel_switch, |
1767 | .flush = iwlagn_mac_flush, | |
1768 | .tx_last_beacon = iwlagn_mac_tx_last_beacon, | |
1769 | .remain_on_channel = iwlagn_mac_remain_on_channel, | |
1770 | .cancel_remain_on_channel = iwlagn_mac_cancel_remain_on_channel, | |
1771 | .rssi_callback = iwlagn_mac_rssi_callback, | |
7335613a WYG |
1772 | .set_tim = iwlagn_mac_set_tim, |
1773 | }; | |
1774 | ||
1775 | /* This function both allocates and initializes hw and priv. */ | |
1776 | struct ieee80211_hw *iwl_alloc_all(void) | |
1777 | { | |
1778 | struct iwl_priv *priv; | |
d0f76d68 | 1779 | struct iwl_op_mode *op_mode; |
7335613a WYG |
1780 | /* mac80211 allocates memory for this device instance, including |
1781 | * space for this driver's private structure */ | |
1782 | struct ieee80211_hw *hw; | |
1783 | ||
d0f76d68 EG |
1784 | hw = ieee80211_alloc_hw(sizeof(struct iwl_priv) + |
1785 | sizeof(struct iwl_op_mode), &iwlagn_hw_ops); | |
7335613a WYG |
1786 | if (!hw) |
1787 | goto out; | |
1788 | ||
d0f76d68 EG |
1789 | op_mode = hw->priv; |
1790 | priv = IWL_OP_MODE_GET_DVM(op_mode); | |
7335613a WYG |
1791 | priv->hw = hw; |
1792 | ||
1793 | out: | |
1794 | return hw; | |
1795 | } |