Commit | Line | Data |
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7335613a WYG |
1 | /****************************************************************************** |
2 | * | |
51368bf7 | 3 | * Copyright(c) 2003 - 2014 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: | |
cb2f8277 | 25 | * Intel Linux Wireless <linuxwifi@intel.com> |
7335613a WYG |
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> | |
7335613a WYG |
31 | #include <linux/slab.h> |
32 | #include <linux/dma-mapping.h> | |
33 | #include <linux/delay.h> | |
34 | #include <linux/sched.h> | |
35 | #include <linux/skbuff.h> | |
36 | #include <linux/netdevice.h> | |
7335613a WYG |
37 | #include <linux/etherdevice.h> |
38 | #include <linux/if_arp.h> | |
39 | ||
53e1116e | 40 | #include <net/ieee80211_radiotap.h> |
7335613a WYG |
41 | #include <net/mac80211.h> |
42 | ||
43 | #include <asm/div64.h> | |
44 | ||
7335613a | 45 | #include "iwl-io.h" |
7335613a | 46 | #include "iwl-trans.h" |
d0f76d68 | 47 | #include "iwl-op-mode.h" |
65de7e84 | 48 | #include "iwl-modparams.h" |
7335613a | 49 | |
1023fdc4 JB |
50 | #include "dev.h" |
51 | #include "calib.h" | |
52 | #include "agn.h" | |
53 | ||
7335613a WYG |
54 | /***************************************************************************** |
55 | * | |
56 | * mac80211 entry point functions | |
57 | * | |
58 | *****************************************************************************/ | |
59 | ||
60 | static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = { | |
61 | { | |
62 | .max = 1, | |
63 | .types = BIT(NL80211_IFTYPE_STATION), | |
64 | }, | |
65 | { | |
66 | .max = 1, | |
67 | .types = BIT(NL80211_IFTYPE_AP), | |
68 | }, | |
69 | }; | |
70 | ||
71 | static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = { | |
72 | { | |
73 | .max = 2, | |
74 | .types = BIT(NL80211_IFTYPE_STATION), | |
75 | }, | |
76 | }; | |
77 | ||
7335613a WYG |
78 | static const struct ieee80211_iface_combination |
79 | iwlagn_iface_combinations_dualmode[] = { | |
80 | { .num_different_channels = 1, | |
81 | .max_interfaces = 2, | |
82 | .beacon_int_infra_match = true, | |
83 | .limits = iwlagn_sta_ap_limits, | |
84 | .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits), | |
85 | }, | |
86 | { .num_different_channels = 1, | |
87 | .max_interfaces = 2, | |
88 | .limits = iwlagn_2sta_limits, | |
89 | .n_limits = ARRAY_SIZE(iwlagn_2sta_limits), | |
90 | }, | |
91 | }; | |
92 | ||
7335613a WYG |
93 | /* |
94 | * Not a mac80211 entry point function, but it fits in with all the | |
95 | * other mac80211 functions grouped here. | |
96 | */ | |
97 | int iwlagn_mac_setup_register(struct iwl_priv *priv, | |
0692fe41 | 98 | const struct iwl_ucode_capabilities *capa) |
7335613a WYG |
99 | { |
100 | int ret; | |
101 | struct ieee80211_hw *hw = priv->hw; | |
102 | struct iwl_rxon_context *ctx; | |
103 | ||
104 | hw->rate_control_algorithm = "iwl-agn-rs"; | |
105 | ||
106 | /* Tell mac80211 our characteristics */ | |
30686bf7 JB |
107 | ieee80211_hw_set(hw, SIGNAL_DBM); |
108 | ieee80211_hw_set(hw, AMPDU_AGGREGATION); | |
109 | ieee80211_hw_set(hw, NEED_DTIM_BEFORE_ASSOC); | |
110 | ieee80211_hw_set(hw, SPECTRUM_MGMT); | |
111 | ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); | |
112 | ieee80211_hw_set(hw, QUEUE_CONTROL); | |
113 | ieee80211_hw_set(hw, SUPPORTS_PS); | |
114 | ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); | |
115 | ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); | |
116 | ieee80211_hw_set(hw, WANT_MONITOR_VIF); | |
1479177b | 117 | |
07abbc50 JB |
118 | if (priv->trans->max_skb_frags) |
119 | hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; | |
120 | ||
1479177b | 121 | hw->offchannel_tx_hw_queue = IWL_AUX_QUEUE; |
53e1116e | 122 | hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FMT; |
7335613a WYG |
123 | |
124 | /* | |
125 | * Including the following line will crash some AP's. This | |
126 | * workaround removes the stimulus which causes the crash until | |
127 | * the AP software can be fixed. | |
128 | hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF; | |
129 | */ | |
130 | ||
b7998c8b | 131 | if (priv->nvm_data->sku_cap_11n_enable) |
0d8614b4 EP |
132 | hw->wiphy->features |= NL80211_FEATURE_DYNAMIC_SMPS | |
133 | NL80211_FEATURE_STATIC_SMPS; | |
7335613a | 134 | |
686681b0 JB |
135 | /* |
136 | * Enable 11w if advertised by firmware and software crypto | |
137 | * is not enabled (as the firmware will interpret some mgmt | |
138 | * packets, so enabling it with software crypto isn't safe) | |
139 | */ | |
140 | if (priv->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && | |
141 | !iwlwifi_mod_params.sw_crypto) | |
30686bf7 | 142 | ieee80211_hw_set(hw, MFP_CAPABLE); |
7335613a WYG |
143 | |
144 | hw->sta_data_size = sizeof(struct iwl_station_priv); | |
145 | hw->vif_data_size = sizeof(struct iwl_vif_priv); | |
146 | ||
147 | for_each_context(priv, ctx) { | |
148 | hw->wiphy->interface_modes |= ctx->interface_modes; | |
149 | hw->wiphy->interface_modes |= ctx->exclusive_interface_modes; | |
150 | } | |
151 | ||
152 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
153 | ||
da4f87f0 | 154 | if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { |
7335613a WYG |
155 | hw->wiphy->iface_combinations = |
156 | iwlagn_iface_combinations_dualmode; | |
157 | hw->wiphy->n_iface_combinations = | |
158 | ARRAY_SIZE(iwlagn_iface_combinations_dualmode); | |
159 | } | |
160 | ||
a2f73b6c LR |
161 | hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
162 | hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | | |
163 | REGULATORY_DISABLE_BEACON_HINTS; | |
7335613a | 164 | |
fcb6ff5e | 165 | #ifdef CONFIG_PM_SLEEP |
6dfa8d01 | 166 | if (priv->fw->img[IWL_UCODE_WOWLAN].sec[0].len && |
ddaf5a5b JB |
167 | priv->trans->ops->d3_suspend && |
168 | priv->trans->ops->d3_resume && | |
68e8dfda | 169 | device_can_wakeup(priv->trans->dev)) { |
964dc9e2 JB |
170 | priv->wowlan_support.flags = WIPHY_WOWLAN_MAGIC_PKT | |
171 | WIPHY_WOWLAN_DISCONNECT | | |
172 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
173 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
65de7e84 | 174 | if (!iwlwifi_mod_params.sw_crypto) |
964dc9e2 | 175 | priv->wowlan_support.flags |= |
7335613a WYG |
176 | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
177 | WIPHY_WOWLAN_GTK_REKEY_FAILURE; | |
178 | ||
964dc9e2 JB |
179 | priv->wowlan_support.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS; |
180 | priv->wowlan_support.pattern_min_len = | |
7335613a | 181 | IWLAGN_WOWLAN_MIN_PATTERN_LEN; |
964dc9e2 | 182 | priv->wowlan_support.pattern_max_len = |
7335613a | 183 | IWLAGN_WOWLAN_MAX_PATTERN_LEN; |
964dc9e2 | 184 | hw->wiphy->wowlan = &priv->wowlan_support; |
7335613a | 185 | } |
fcb6ff5e | 186 | #endif |
7335613a | 187 | |
65de7e84 | 188 | if (iwlwifi_mod_params.power_save) |
7335613a WYG |
189 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
190 | else | |
191 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
192 | ||
193 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; | |
4f9bfbb1 DS |
194 | /* we create the 802.11 header and a max-length SSID element */ |
195 | hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 34; | |
7335613a | 196 | |
1479177b JB |
197 | /* |
198 | * We don't use all queues: 4 and 9 are unused and any | |
199 | * aggregation queue gets mapped down to the AC queue. | |
200 | */ | |
201 | hw->queues = IWLAGN_FIRST_AMPDU_QUEUE; | |
7335613a WYG |
202 | |
203 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; | |
204 | ||
b7998c8b | 205 | if (priv->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) |
7335613a | 206 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
b7998c8b EL |
207 | &priv->nvm_data->bands[IEEE80211_BAND_2GHZ]; |
208 | if (priv->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) | |
7335613a | 209 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
b7998c8b | 210 | &priv->nvm_data->bands[IEEE80211_BAND_5GHZ]; |
7335613a | 211 | |
68e8dfda | 212 | hw->wiphy->hw_version = priv->trans->hw_id; |
0ba958eb | 213 | |
7335613a WYG |
214 | iwl_leds_init(priv); |
215 | ||
216 | ret = ieee80211_register_hw(priv->hw); | |
217 | if (ret) { | |
218 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); | |
0e1fa7ef | 219 | iwl_leds_exit(priv); |
7335613a WYG |
220 | return ret; |
221 | } | |
222 | priv->mac80211_registered = 1; | |
223 | ||
224 | return 0; | |
225 | } | |
226 | ||
09af1403 DF |
227 | void iwlagn_mac_unregister(struct iwl_priv *priv) |
228 | { | |
229 | if (!priv->mac80211_registered) | |
230 | return; | |
231 | iwl_leds_exit(priv); | |
232 | ieee80211_unregister_hw(priv->hw); | |
233 | priv->mac80211_registered = 0; | |
234 | } | |
235 | ||
7335613a WYG |
236 | static int __iwl_up(struct iwl_priv *priv) |
237 | { | |
238 | struct iwl_rxon_context *ctx; | |
239 | int ret; | |
240 | ||
b1eea297 | 241 | lockdep_assert_held(&priv->mutex); |
7335613a | 242 | |
83626404 | 243 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
7335613a WYG |
244 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
245 | return -EIO; | |
246 | } | |
247 | ||
248 | for_each_context(priv, ctx) { | |
249 | ret = iwlagn_alloc_bcast_station(priv, ctx); | |
250 | if (ret) { | |
251 | iwl_dealloc_bcast_stations(priv); | |
252 | return ret; | |
253 | } | |
254 | } | |
255 | ||
012c02c1 EG |
256 | ret = iwl_trans_start_hw(priv->trans); |
257 | if (ret) { | |
258 | IWL_ERR(priv, "Failed to start HW: %d\n", ret); | |
259 | goto error; | |
260 | } | |
261 | ||
e1991885 | 262 | ret = iwl_run_init_ucode(priv); |
7335613a WYG |
263 | if (ret) { |
264 | IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret); | |
265 | goto error; | |
266 | } | |
267 | ||
012c02c1 EG |
268 | ret = iwl_trans_start_hw(priv->trans); |
269 | if (ret) { | |
270 | IWL_ERR(priv, "Failed to start HW: %d\n", ret); | |
271 | goto error; | |
272 | } | |
273 | ||
e1991885 | 274 | ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR); |
7335613a WYG |
275 | if (ret) { |
276 | IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret); | |
277 | goto error; | |
278 | } | |
279 | ||
280 | ret = iwl_alive_start(priv); | |
281 | if (ret) | |
282 | goto error; | |
283 | return 0; | |
284 | ||
285 | error: | |
83626404 | 286 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
78e5a464 | 287 | iwl_down(priv); |
83626404 | 288 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
7335613a WYG |
289 | |
290 | IWL_ERR(priv, "Unable to initialize device.\n"); | |
291 | return ret; | |
292 | } | |
293 | ||
294 | static int iwlagn_mac_start(struct ieee80211_hw *hw) | |
295 | { | |
d0f76d68 | 296 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
297 | int ret; |
298 | ||
299 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
300 | ||
301 | /* we should be verifying the device is ready to be opened */ | |
b1eea297 | 302 | mutex_lock(&priv->mutex); |
7335613a | 303 | ret = __iwl_up(priv); |
b1eea297 | 304 | mutex_unlock(&priv->mutex); |
7335613a WYG |
305 | if (ret) |
306 | return ret; | |
307 | ||
308 | IWL_DEBUG_INFO(priv, "Start UP work done.\n"); | |
309 | ||
310 | /* Now we should be done, and the READY bit should be set. */ | |
83626404 | 311 | if (WARN_ON(!test_bit(STATUS_READY, &priv->status))) |
7335613a WYG |
312 | ret = -EIO; |
313 | ||
314 | iwlagn_led_enable(priv); | |
315 | ||
316 | priv->is_open = 1; | |
317 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
318 | return 0; | |
319 | } | |
320 | ||
aca86268 | 321 | static void iwlagn_mac_stop(struct ieee80211_hw *hw) |
7335613a | 322 | { |
d0f76d68 | 323 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
324 | |
325 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
326 | ||
327 | if (!priv->is_open) | |
328 | return; | |
329 | ||
330 | priv->is_open = 0; | |
331 | ||
b1eea297 | 332 | mutex_lock(&priv->mutex); |
7335613a | 333 | iwl_down(priv); |
b1eea297 | 334 | mutex_unlock(&priv->mutex); |
78e5a464 EG |
335 | |
336 | iwl_cancel_deferred_work(priv); | |
7335613a | 337 | |
1ee158d8 | 338 | flush_workqueue(priv->workqueue); |
7335613a | 339 | |
7335613a WYG |
340 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
341 | } | |
342 | ||
aca86268 JB |
343 | static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw, |
344 | struct ieee80211_vif *vif, | |
345 | struct cfg80211_gtk_rekey_data *data) | |
7335613a | 346 | { |
d0f76d68 | 347 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 348 | |
65de7e84 | 349 | if (iwlwifi_mod_params.sw_crypto) |
7335613a WYG |
350 | return; |
351 | ||
352 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 353 | mutex_lock(&priv->mutex); |
7335613a WYG |
354 | |
355 | if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif) | |
356 | goto out; | |
357 | ||
358 | memcpy(priv->kek, data->kek, NL80211_KEK_LEN); | |
359 | memcpy(priv->kck, data->kck, NL80211_KCK_LEN); | |
360 | priv->replay_ctr = | |
361 | cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); | |
362 | priv->have_rekey_data = true; | |
363 | ||
364 | out: | |
b1eea297 | 365 | mutex_unlock(&priv->mutex); |
7335613a WYG |
366 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
367 | } | |
368 | ||
369 | #ifdef CONFIG_PM_SLEEP | |
7335613a | 370 | |
aca86268 JB |
371 | static int iwlagn_mac_suspend(struct ieee80211_hw *hw, |
372 | struct cfg80211_wowlan *wowlan) | |
7335613a | 373 | { |
d0f76d68 | 374 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 375 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
023ca58f | 376 | int ret; |
7335613a WYG |
377 | |
378 | if (WARN_ON(!wowlan)) | |
379 | return -EINVAL; | |
380 | ||
381 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 382 | mutex_lock(&priv->mutex); |
7335613a WYG |
383 | |
384 | /* Don't attempt WoWLAN when not associated, tear down instead. */ | |
385 | if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION || | |
386 | !iwl_is_associated_ctx(ctx)) { | |
387 | ret = 1; | |
388 | goto out; | |
389 | } | |
390 | ||
ea886a60 | 391 | ret = iwlagn_suspend(priv, wowlan); |
7335613a WYG |
392 | if (ret) |
393 | goto error; | |
394 | ||
8ade6285 JB |
395 | /* let the ucode operate on its own */ |
396 | iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_SET, | |
397 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); | |
398 | ||
23ae6128 | 399 | iwl_trans_d3_suspend(priv->trans, false, true); |
7335613a WYG |
400 | |
401 | goto out; | |
402 | ||
403 | error: | |
15b86bff | 404 | priv->wowlan = false; |
7335613a WYG |
405 | iwlagn_prepare_restart(priv); |
406 | ieee80211_restart_hw(priv->hw); | |
407 | out: | |
b1eea297 | 408 | mutex_unlock(&priv->mutex); |
7335613a WYG |
409 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
410 | ||
411 | return ret; | |
412 | } | |
413 | ||
5718d27f JB |
414 | struct iwl_resume_data { |
415 | struct iwl_priv *priv; | |
416 | struct iwlagn_wowlan_status *cmd; | |
417 | bool valid; | |
418 | }; | |
419 | ||
420 | static bool iwl_resume_status_fn(struct iwl_notif_wait_data *notif_wait, | |
421 | struct iwl_rx_packet *pkt, void *data) | |
422 | { | |
423 | struct iwl_resume_data *resume_data = data; | |
424 | struct iwl_priv *priv = resume_data->priv; | |
5718d27f | 425 | |
65b30348 | 426 | if (iwl_rx_packet_payload_len(pkt) != sizeof(*resume_data->cmd)) { |
5718d27f JB |
427 | IWL_ERR(priv, "rx wrong size data\n"); |
428 | return true; | |
429 | } | |
430 | memcpy(resume_data->cmd, pkt->data, sizeof(*resume_data->cmd)); | |
431 | resume_data->valid = true; | |
432 | ||
433 | return true; | |
434 | } | |
435 | ||
7335613a WYG |
436 | static int iwlagn_mac_resume(struct ieee80211_hw *hw) |
437 | { | |
d0f76d68 | 438 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
439 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
440 | struct ieee80211_vif *vif; | |
5718d27f JB |
441 | u32 base; |
442 | int ret; | |
443 | enum iwl_d3_status d3_status; | |
444 | struct error_table_start { | |
445 | /* cf. struct iwl_error_event_table */ | |
446 | u32 valid; | |
447 | u32 error_id; | |
448 | } err_info; | |
449 | struct iwl_notification_wait status_wait; | |
6eb031d2 | 450 | static const u16 status_cmd[] = { |
5718d27f JB |
451 | REPLY_WOWLAN_GET_STATUS, |
452 | }; | |
453 | struct iwlagn_wowlan_status status_data = {}; | |
454 | struct iwl_resume_data resume_data = { | |
455 | .priv = priv, | |
456 | .cmd = &status_data, | |
457 | .valid = false, | |
458 | }; | |
459 | struct cfg80211_wowlan_wakeup wakeup = { | |
460 | .pattern_idx = -1, | |
461 | }; | |
462 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
463 | const struct fw_img *img; | |
464 | #endif | |
7335613a WYG |
465 | |
466 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 467 | mutex_lock(&priv->mutex); |
7335613a | 468 | |
5718d27f JB |
469 | /* we'll clear ctx->vif during iwlagn_prepare_restart() */ |
470 | vif = ctx->vif; | |
471 | ||
23ae6128 | 472 | ret = iwl_trans_d3_resume(priv->trans, &d3_status, false, true); |
5718d27f JB |
473 | if (ret) |
474 | goto out_unlock; | |
475 | ||
476 | if (d3_status != IWL_D3_STATUS_ALIVE) { | |
477 | IWL_INFO(priv, "Device was reset during suspend\n"); | |
478 | goto out_unlock; | |
479 | } | |
7335613a | 480 | |
8ade6285 JB |
481 | /* uCode is no longer operating by itself */ |
482 | iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR, | |
483 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); | |
484 | ||
2fdfc476 | 485 | base = priv->device_pointers.error_event_table; |
5718d27f JB |
486 | if (!iwlagn_hw_valid_rtc_data_addr(base)) { |
487 | IWL_WARN(priv, "Invalid error table during resume!\n"); | |
488 | goto out_unlock; | |
489 | } | |
490 | ||
491 | iwl_trans_read_mem_bytes(priv->trans, base, | |
492 | &err_info, sizeof(err_info)); | |
493 | ||
494 | if (err_info.valid) { | |
495 | IWL_INFO(priv, "error table is valid (%d, 0x%x)\n", | |
496 | err_info.valid, err_info.error_id); | |
497 | if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) { | |
498 | wakeup.rfkill_release = true; | |
499 | ieee80211_report_wowlan_wakeup(vif, &wakeup, | |
500 | GFP_KERNEL); | |
7335613a | 501 | } |
5718d27f JB |
502 | goto out_unlock; |
503 | } | |
7335613a WYG |
504 | |
505 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
5718d27f JB |
506 | img = &priv->fw->img[IWL_UCODE_WOWLAN]; |
507 | if (!priv->wowlan_sram) | |
508 | priv->wowlan_sram = | |
509 | kzalloc(img->sec[IWL_UCODE_SECTION_DATA].len, | |
510 | GFP_KERNEL); | |
511 | ||
512 | if (priv->wowlan_sram) | |
513 | iwl_trans_read_mem(priv->trans, 0x800000, | |
514 | priv->wowlan_sram, | |
515 | img->sec[IWL_UCODE_SECTION_DATA].len / 4); | |
7335613a | 516 | #endif |
7335613a | 517 | |
5718d27f JB |
518 | /* |
519 | * This is very strange. The GET_STATUS command is sent but the device | |
520 | * doesn't reply properly, it seems it doesn't close the RBD so one is | |
521 | * always left open ... As a result, we need to send another command | |
522 | * and have to reset the driver afterwards. As we need to switch to | |
523 | * runtime firmware again that'll happen. | |
524 | */ | |
525 | ||
526 | iwl_init_notification_wait(&priv->notif_wait, &status_wait, status_cmd, | |
527 | ARRAY_SIZE(status_cmd), iwl_resume_status_fn, | |
528 | &resume_data); | |
529 | ||
530 | iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_GET_STATUS, CMD_ASYNC, 0, NULL); | |
531 | iwl_dvm_send_cmd_pdu(priv, REPLY_ECHO, CMD_ASYNC, 0, NULL); | |
532 | /* an RBD is left open in the firmware now! */ | |
533 | ||
534 | ret = iwl_wait_notification(&priv->notif_wait, &status_wait, HZ/5); | |
535 | if (ret) | |
536 | goto out_unlock; | |
537 | ||
538 | if (resume_data.valid && priv->contexts[IWL_RXON_CTX_BSS].vif) { | |
539 | u32 reasons = le32_to_cpu(status_data.wakeup_reason); | |
540 | struct cfg80211_wowlan_wakeup *wakeup_report; | |
541 | ||
542 | IWL_INFO(priv, "WoWLAN wakeup reason(s): 0x%.8x\n", reasons); | |
543 | ||
544 | if (reasons) { | |
545 | if (reasons & IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET) | |
546 | wakeup.magic_pkt = true; | |
547 | if (reasons & IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH) | |
548 | wakeup.pattern_idx = status_data.pattern_number; | |
549 | if (reasons & (IWLAGN_WOWLAN_WAKEUP_BEACON_MISS | | |
550 | IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE)) | |
551 | wakeup.disconnect = true; | |
552 | if (reasons & IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL) | |
553 | wakeup.gtk_rekey_failure = true; | |
554 | if (reasons & IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ) | |
555 | wakeup.eap_identity_req = true; | |
556 | if (reasons & IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE) | |
557 | wakeup.four_way_handshake = true; | |
558 | wakeup_report = &wakeup; | |
559 | } else { | |
560 | wakeup_report = NULL; | |
561 | } | |
562 | ||
563 | ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); | |
564 | } | |
7335613a | 565 | |
15b86bff | 566 | priv->wowlan = false; |
7335613a | 567 | |
7335613a WYG |
568 | iwlagn_prepare_restart(priv); |
569 | ||
570 | memset((void *)&ctx->active, 0, sizeof(ctx->active)); | |
571 | iwl_connection_init_rx_config(priv, ctx); | |
572 | iwlagn_set_rxon_chain(priv, ctx); | |
573 | ||
5718d27f | 574 | out_unlock: |
b1eea297 | 575 | mutex_unlock(&priv->mutex); |
7335613a WYG |
576 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
577 | ||
578 | ieee80211_resume_disconnect(vif); | |
579 | ||
580 | return 1; | |
581 | } | |
582 | ||
76ed2edd JB |
583 | static void iwlagn_mac_set_wakeup(struct ieee80211_hw *hw, bool enabled) |
584 | { | |
585 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
586 | ||
587 | device_set_wakeup_enable(priv->trans->dev, enabled); | |
588 | } | |
7335613a WYG |
589 | #endif |
590 | ||
36323f81 TH |
591 | static void iwlagn_mac_tx(struct ieee80211_hw *hw, |
592 | struct ieee80211_tx_control *control, | |
593 | struct sk_buff *skb) | |
7335613a | 594 | { |
d0f76d68 | 595 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 596 | |
36323f81 | 597 | if (iwlagn_tx_skb(priv, control->sta, skb)) |
31df3bb7 | 598 | ieee80211_free_txskb(hw, skb); |
7335613a WYG |
599 | } |
600 | ||
aca86268 JB |
601 | static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw, |
602 | struct ieee80211_vif *vif, | |
603 | struct ieee80211_key_conf *keyconf, | |
604 | struct ieee80211_sta *sta, | |
605 | u32 iv32, u16 *phase1key) | |
7335613a | 606 | { |
d0f76d68 | 607 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
608 | |
609 | iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key); | |
610 | } | |
611 | ||
aca86268 JB |
612 | static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
613 | struct ieee80211_vif *vif, | |
614 | struct ieee80211_sta *sta, | |
615 | struct ieee80211_key_conf *key) | |
7335613a | 616 | { |
d0f76d68 | 617 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
618 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
619 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
620 | int ret; | |
621 | bool is_default_wep_key = false; | |
622 | ||
623 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
624 | ||
65de7e84 | 625 | if (iwlwifi_mod_params.sw_crypto) { |
7335613a WYG |
626 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); |
627 | return -EOPNOTSUPP; | |
628 | } | |
629 | ||
a7e12c8e JB |
630 | switch (key->cipher) { |
631 | case WLAN_CIPHER_SUITE_TKIP: | |
632 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
633 | /* fall through */ | |
634 | case WLAN_CIPHER_SUITE_CCMP: | |
635 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
636 | break; | |
637 | default: | |
638 | break; | |
639 | } | |
640 | ||
7335613a WYG |
641 | /* |
642 | * We could program these keys into the hardware as well, but we | |
643 | * don't expect much multicast traffic in IBSS and having keys | |
644 | * for more stations is probably more useful. | |
645 | * | |
646 | * Mark key TX-only and return 0. | |
647 | */ | |
648 | if (vif->type == NL80211_IFTYPE_ADHOC && | |
649 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { | |
650 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
651 | return 0; | |
652 | } | |
653 | ||
654 | /* If they key was TX-only, accept deletion */ | |
655 | if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET) | |
656 | return 0; | |
657 | ||
b1eea297 | 658 | mutex_lock(&priv->mutex); |
7335613a WYG |
659 | iwl_scan_cancel_timeout(priv, 100); |
660 | ||
661 | BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT); | |
662 | ||
663 | /* | |
664 | * If we are getting WEP group key and we didn't receive any key mapping | |
665 | * so far, we are in legacy wep mode (group key only), otherwise we are | |
666 | * in 1X mode. | |
667 | * In legacy wep mode, we use another host command to the uCode. | |
668 | */ | |
669 | if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || | |
670 | key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) { | |
671 | if (cmd == SET_KEY) | |
672 | is_default_wep_key = !ctx->key_mapping_keys; | |
673 | else | |
674 | is_default_wep_key = | |
675 | key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT; | |
676 | } | |
677 | ||
678 | ||
679 | switch (cmd) { | |
680 | case SET_KEY: | |
681 | if (is_default_wep_key) { | |
682 | ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key); | |
683 | break; | |
684 | } | |
685 | ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta); | |
686 | if (ret) { | |
687 | /* | |
688 | * can't add key for RX, but we don't need it | |
689 | * in the device for TX so still return 0 | |
690 | */ | |
691 | ret = 0; | |
692 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
693 | } | |
694 | ||
695 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); | |
696 | break; | |
697 | case DISABLE_KEY: | |
698 | if (is_default_wep_key) | |
699 | ret = iwl_remove_default_wep_key(priv, ctx, key); | |
700 | else | |
701 | ret = iwl_remove_dynamic_key(priv, ctx, key, sta); | |
702 | ||
703 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); | |
704 | break; | |
705 | default: | |
706 | ret = -EINVAL; | |
707 | } | |
708 | ||
b1eea297 | 709 | mutex_unlock(&priv->mutex); |
7335613a WYG |
710 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
711 | ||
712 | return ret; | |
713 | } | |
714 | ||
205e2210 EG |
715 | static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) |
716 | { | |
717 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) | |
718 | return false; | |
719 | return true; | |
720 | } | |
721 | ||
722 | static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) | |
723 | { | |
724 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) | |
725 | return false; | |
726 | if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) | |
727 | return true; | |
728 | ||
729 | /* disabled by default */ | |
730 | return false; | |
731 | } | |
732 | ||
aca86268 JB |
733 | static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, |
734 | struct ieee80211_vif *vif, | |
50ea05ef | 735 | struct ieee80211_ampdu_params *params) |
7335613a | 736 | { |
d0f76d68 | 737 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 738 | int ret = -EINVAL; |
50ea05ef SS |
739 | struct ieee80211_sta *sta = params->sta; |
740 | enum ieee80211_ampdu_mlme_action action = params->action; | |
741 | u16 tid = params->tid; | |
742 | u16 *ssn = ¶ms->ssn; | |
743 | u8 buf_size = params->buf_size; | |
7335613a | 744 | struct iwl_station_priv *sta_priv = (void *) sta->drv_priv; |
7335613a WYG |
745 | |
746 | IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", | |
747 | sta->addr, tid); | |
748 | ||
b7998c8b | 749 | if (!(priv->nvm_data->sku_cap_11n_enable)) |
7335613a WYG |
750 | return -EACCES; |
751 | ||
752 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 753 | mutex_lock(&priv->mutex); |
7335613a WYG |
754 | |
755 | switch (action) { | |
756 | case IEEE80211_AMPDU_RX_START: | |
205e2210 | 757 | if (!iwl_enable_rx_ampdu(priv->cfg)) |
7428994d | 758 | break; |
7335613a WYG |
759 | IWL_DEBUG_HT(priv, "start Rx\n"); |
760 | ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn); | |
761 | break; | |
762 | case IEEE80211_AMPDU_RX_STOP: | |
763 | IWL_DEBUG_HT(priv, "stop Rx\n"); | |
764 | ret = iwl_sta_rx_agg_stop(priv, sta, tid); | |
7335613a WYG |
765 | break; |
766 | case IEEE80211_AMPDU_TX_START: | |
4beaf6c2 | 767 | if (!priv->trans->ops->txq_enable) |
9eae88fa | 768 | break; |
205e2210 | 769 | if (!iwl_enable_tx_ampdu(priv->cfg)) |
7428994d | 770 | break; |
7335613a WYG |
771 | IWL_DEBUG_HT(priv, "start Tx\n"); |
772 | ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn); | |
773 | break; | |
18b559d5 JB |
774 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
775 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
2d055afd EG |
776 | IWL_DEBUG_HT(priv, "Flush Tx\n"); |
777 | ret = iwlagn_tx_agg_flush(priv, vif, sta, tid); | |
778 | break; | |
779 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
7335613a WYG |
780 | IWL_DEBUG_HT(priv, "stop Tx\n"); |
781 | ret = iwlagn_tx_agg_stop(priv, vif, sta, tid); | |
782 | if ((ret == 0) && (priv->agg_tids_count > 0)) { | |
783 | priv->agg_tids_count--; | |
784 | IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", | |
785 | priv->agg_tids_count); | |
786 | } | |
b9ad70da | 787 | if (!priv->agg_tids_count && |
9e295116 | 788 | priv->hw_params.use_rts_for_aggregation) { |
7335613a WYG |
789 | /* |
790 | * switch off RTS/CTS if it was previously enabled | |
791 | */ | |
792 | sta_priv->lq_sta.lq.general_params.flags &= | |
793 | ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; | |
794 | iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), | |
795 | &sta_priv->lq_sta.lq, CMD_ASYNC, false); | |
796 | } | |
797 | break; | |
798 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
822e8b2a | 799 | ret = iwlagn_tx_agg_oper(priv, vif, sta, tid, buf_size); |
7335613a WYG |
800 | break; |
801 | } | |
b1eea297 | 802 | mutex_unlock(&priv->mutex); |
7335613a WYG |
803 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
804 | return ret; | |
805 | } | |
806 | ||
807 | static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, | |
808 | struct ieee80211_vif *vif, | |
809 | struct ieee80211_sta *sta) | |
810 | { | |
d0f76d68 | 811 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
812 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
813 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
814 | bool is_ap = vif->type == NL80211_IFTYPE_STATION; | |
fb5fe5b9 | 815 | int ret; |
7335613a WYG |
816 | u8 sta_id; |
817 | ||
7335613a WYG |
818 | IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", |
819 | sta->addr); | |
820 | sta_priv->sta_id = IWL_INVALID_STATION; | |
821 | ||
822 | atomic_set(&sta_priv->pending_frames, 0); | |
823 | if (vif->type == NL80211_IFTYPE_AP) | |
824 | sta_priv->client = true; | |
825 | ||
826 | ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr, | |
827 | is_ap, sta, &sta_id); | |
828 | if (ret) { | |
829 | IWL_ERR(priv, "Unable to add station %pM (%d)\n", | |
830 | sta->addr, ret); | |
831 | /* Should we return success if return code is EEXIST ? */ | |
fb5fe5b9 | 832 | return ret; |
7335613a WYG |
833 | } |
834 | ||
835 | sta_priv->sta_id = sta_id; | |
836 | ||
fb5fe5b9 JB |
837 | return 0; |
838 | } | |
839 | ||
840 | static int iwlagn_mac_sta_remove(struct ieee80211_hw *hw, | |
841 | struct ieee80211_vif *vif, | |
842 | struct ieee80211_sta *sta) | |
843 | { | |
844 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
845 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
846 | int ret; | |
847 | ||
97420515 JB |
848 | IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", sta->addr); |
849 | ||
850 | if (vif->type == NL80211_IFTYPE_STATION) { | |
851 | /* | |
852 | * Station will be removed from device when the RXON | |
853 | * is set to unassociated -- just deactivate it here | |
854 | * to avoid re-programming it. | |
855 | */ | |
856 | ret = 0; | |
857 | iwl_deactivate_station(priv, sta_priv->sta_id, sta->addr); | |
858 | } else { | |
859 | ret = iwl_remove_station(priv, sta_priv->sta_id, sta->addr); | |
860 | if (ret) | |
861 | IWL_DEBUG_QUIET_RFKILL(priv, | |
862 | "Error removing station %pM\n", sta->addr); | |
863 | } | |
fb5fe5b9 JB |
864 | return ret; |
865 | } | |
866 | ||
aca86268 JB |
867 | static int iwlagn_mac_sta_state(struct ieee80211_hw *hw, |
868 | struct ieee80211_vif *vif, | |
869 | struct ieee80211_sta *sta, | |
870 | enum ieee80211_sta_state old_state, | |
871 | enum ieee80211_sta_state new_state) | |
fb5fe5b9 JB |
872 | { |
873 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
ab0bd5b3 | 874 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
fb5fe5b9 | 875 | enum { |
ab0bd5b3 | 876 | NONE, ADD, REMOVE, HT_RATE_INIT, ADD_RATE_INIT, |
fb5fe5b9 JB |
877 | } op = NONE; |
878 | int ret; | |
879 | ||
880 | IWL_DEBUG_MAC80211(priv, "station %pM state change %d->%d\n", | |
881 | sta->addr, old_state, new_state); | |
882 | ||
b1eea297 | 883 | mutex_lock(&priv->mutex); |
fb5fe5b9 JB |
884 | if (vif->type == NL80211_IFTYPE_STATION) { |
885 | if (old_state == IEEE80211_STA_NOTEXIST && | |
886 | new_state == IEEE80211_STA_NONE) | |
887 | op = ADD; | |
888 | else if (old_state == IEEE80211_STA_NONE && | |
889 | new_state == IEEE80211_STA_NOTEXIST) | |
890 | op = REMOVE; | |
891 | else if (old_state == IEEE80211_STA_AUTH && | |
892 | new_state == IEEE80211_STA_ASSOC) | |
ab0bd5b3 | 893 | op = HT_RATE_INIT; |
fb5fe5b9 JB |
894 | } else { |
895 | if (old_state == IEEE80211_STA_AUTH && | |
896 | new_state == IEEE80211_STA_ASSOC) | |
897 | op = ADD_RATE_INIT; | |
898 | else if (old_state == IEEE80211_STA_ASSOC && | |
899 | new_state == IEEE80211_STA_AUTH) | |
900 | op = REMOVE; | |
901 | } | |
902 | ||
903 | switch (op) { | |
904 | case ADD: | |
905 | ret = iwlagn_mac_sta_add(hw, vif, sta); | |
eac9ac6d JB |
906 | if (ret) |
907 | break; | |
908 | /* | |
909 | * Clear the in-progress flag, the AP station entry was added | |
910 | * but we'll initialize LQ only when we've associated (which | |
911 | * would also clear the in-progress flag). This is necessary | |
912 | * in case we never initialize LQ because association fails. | |
913 | */ | |
914 | spin_lock_bh(&priv->sta_lock); | |
915 | priv->stations[iwl_sta_id(sta)].used &= | |
916 | ~IWL_STA_UCODE_INPROGRESS; | |
917 | spin_unlock_bh(&priv->sta_lock); | |
fb5fe5b9 JB |
918 | break; |
919 | case REMOVE: | |
920 | ret = iwlagn_mac_sta_remove(hw, vif, sta); | |
921 | break; | |
922 | case ADD_RATE_INIT: | |
923 | ret = iwlagn_mac_sta_add(hw, vif, sta); | |
924 | if (ret) | |
925 | break; | |
fb5fe5b9 JB |
926 | /* Initialize rate scaling */ |
927 | IWL_DEBUG_INFO(priv, | |
928 | "Initializing rate scaling for station %pM\n", | |
929 | sta->addr); | |
930 | iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); | |
931 | ret = 0; | |
932 | break; | |
ab0bd5b3 JB |
933 | case HT_RATE_INIT: |
934 | /* Initialize rate scaling */ | |
935 | ret = iwl_sta_update_ht(priv, vif_priv->ctx, sta); | |
936 | if (ret) | |
937 | break; | |
938 | IWL_DEBUG_INFO(priv, | |
939 | "Initializing rate scaling for station %pM\n", | |
940 | sta->addr); | |
941 | iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); | |
942 | ret = 0; | |
943 | break; | |
fb5fe5b9 JB |
944 | default: |
945 | ret = 0; | |
946 | break; | |
947 | } | |
948 | ||
949 | /* | |
950 | * mac80211 might WARN if we fail, but due the way we | |
951 | * (badly) handle hard rfkill, we might fail here | |
952 | */ | |
83626404 | 953 | if (iwl_is_rfkill(priv)) |
fb5fe5b9 JB |
954 | ret = 0; |
955 | ||
b1eea297 | 956 | mutex_unlock(&priv->mutex); |
7335613a WYG |
957 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
958 | ||
959 | return ret; | |
960 | } | |
961 | ||
aca86268 | 962 | static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, |
0f791eb4 | 963 | struct ieee80211_vif *vif, |
aca86268 | 964 | struct ieee80211_channel_switch *ch_switch) |
7335613a | 965 | { |
d0f76d68 | 966 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 967 | struct ieee80211_conf *conf = &hw->conf; |
85220d71 | 968 | struct ieee80211_channel *channel = ch_switch->chandef.chan; |
7335613a WYG |
969 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; |
970 | /* | |
971 | * MULTI-FIXME | |
972 | * When we add support for multiple interfaces, we need to | |
973 | * revisit this. The channel switch command in the device | |
974 | * only affects the BSS context, but what does that really | |
975 | * mean? And what if we get a CSA on the second interface? | |
976 | * This needs a lot of work. | |
977 | */ | |
978 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
979 | u16 ch; | |
980 | ||
981 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
982 | ||
b1eea297 | 983 | mutex_lock(&priv->mutex); |
7335613a | 984 | |
83626404 | 985 | if (iwl_is_rfkill(priv)) |
7335613a WYG |
986 | goto out; |
987 | ||
83626404 DF |
988 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || |
989 | test_bit(STATUS_SCANNING, &priv->status) || | |
990 | test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) | |
7335613a WYG |
991 | goto out; |
992 | ||
993 | if (!iwl_is_associated_ctx(ctx)) | |
994 | goto out; | |
995 | ||
e9676695 | 996 | if (!priv->lib->set_channel_switch) |
7335613a WYG |
997 | goto out; |
998 | ||
999 | ch = channel->hw_value; | |
1000 | if (le16_to_cpu(ctx->active.channel) == ch) | |
1001 | goto out; | |
1002 | ||
7335613a WYG |
1003 | priv->current_ht_config.smps = conf->smps_mode; |
1004 | ||
1005 | /* Configure HT40 channels */ | |
85220d71 JB |
1006 | switch (cfg80211_get_chandef_type(&ch_switch->chandef)) { |
1007 | case NL80211_CHAN_NO_HT: | |
1008 | case NL80211_CHAN_HT20: | |
7335613a | 1009 | ctx->ht.is_40mhz = false; |
85220d71 JB |
1010 | ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE; |
1011 | break; | |
1012 | case NL80211_CHAN_HT40MINUS: | |
1013 | ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
1014 | ctx->ht.is_40mhz = true; | |
1015 | break; | |
1016 | case NL80211_CHAN_HT40PLUS: | |
1017 | ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
1018 | ctx->ht.is_40mhz = true; | |
1019 | break; | |
1020 | } | |
7335613a WYG |
1021 | |
1022 | if ((le16_to_cpu(ctx->staging.channel) != ch)) | |
1023 | ctx->staging.flags = 0; | |
1024 | ||
1025 | iwl_set_rxon_channel(priv, channel, ctx); | |
1026 | iwl_set_rxon_ht(priv, ht_conf); | |
1027 | iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif); | |
1028 | ||
7335613a WYG |
1029 | /* |
1030 | * at this point, staging_rxon has the | |
1031 | * configuration for channel switch | |
1032 | */ | |
83626404 | 1033 | set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); |
7335613a | 1034 | priv->switch_channel = cpu_to_le16(ch); |
e9676695 | 1035 | if (priv->lib->set_channel_switch(priv, ch_switch)) { |
83626404 | 1036 | clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); |
7335613a WYG |
1037 | priv->switch_channel = 0; |
1038 | ieee80211_chswitch_done(ctx->vif, false); | |
1039 | } | |
1040 | ||
1041 | out: | |
b1eea297 | 1042 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1043 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1044 | } | |
1045 | ||
bedec3a6 MV |
1046 | void iwl_chswitch_done(struct iwl_priv *priv, bool is_success) |
1047 | { | |
1048 | /* | |
1049 | * MULTI-FIXME | |
1050 | * See iwlagn_mac_channel_switch. | |
1051 | */ | |
1052 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
1053 | ||
1054 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
1055 | return; | |
1056 | ||
9186a1fd SG |
1057 | if (!test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) |
1058 | return; | |
1059 | ||
1060 | if (ctx->vif) | |
bedec3a6 MV |
1061 | ieee80211_chswitch_done(ctx->vif, is_success); |
1062 | } | |
1063 | ||
aca86268 JB |
1064 | static void iwlagn_configure_filter(struct ieee80211_hw *hw, |
1065 | unsigned int changed_flags, | |
1066 | unsigned int *total_flags, | |
1067 | u64 multicast) | |
7335613a | 1068 | { |
d0f76d68 | 1069 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
1070 | __le32 filter_or = 0, filter_nand = 0; |
1071 | struct iwl_rxon_context *ctx; | |
1072 | ||
1073 | #define CHK(test, flag) do { \ | |
1074 | if (*total_flags & (test)) \ | |
1075 | filter_or |= (flag); \ | |
1076 | else \ | |
1077 | filter_nand |= (flag); \ | |
1078 | } while (0) | |
1079 | ||
1080 | IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", | |
1081 | changed_flags, *total_flags); | |
1082 | ||
df140465 | 1083 | CHK(FIF_OTHER_BSS, RXON_FILTER_PROMISC_MSK); |
7335613a WYG |
1084 | /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */ |
1085 | CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK); | |
1086 | CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); | |
1087 | ||
1088 | #undef CHK | |
1089 | ||
b1eea297 | 1090 | mutex_lock(&priv->mutex); |
7335613a WYG |
1091 | |
1092 | for_each_context(priv, ctx) { | |
1093 | ctx->staging.filter_flags &= ~filter_nand; | |
1094 | ctx->staging.filter_flags |= filter_or; | |
1095 | ||
1096 | /* | |
1097 | * Not committing directly because hardware can perform a scan, | |
1098 | * but we'll eventually commit the filter flags change anyway. | |
1099 | */ | |
1100 | } | |
1101 | ||
b1eea297 | 1102 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1103 | |
1104 | /* | |
1105 | * Receiving all multicast frames is always enabled by the | |
1106 | * default flags setup in iwl_connection_init_rx_config() | |
1107 | * since we currently do not support programming multicast | |
1108 | * filters into the device. | |
1109 | */ | |
df140465 | 1110 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | |
7335613a WYG |
1111 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; |
1112 | } | |
1113 | ||
77be2c54 EG |
1114 | static void iwlagn_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
1115 | u32 queues, bool drop) | |
7335613a | 1116 | { |
d0f76d68 | 1117 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
a0855054 | 1118 | u32 scd_queues; |
7335613a | 1119 | |
b1eea297 | 1120 | mutex_lock(&priv->mutex); |
7335613a WYG |
1121 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
1122 | ||
83626404 | 1123 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
7335613a WYG |
1124 | IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n"); |
1125 | goto done; | |
1126 | } | |
83626404 | 1127 | if (iwl_is_rfkill(priv)) { |
7335613a WYG |
1128 | IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n"); |
1129 | goto done; | |
1130 | } | |
1131 | ||
a0855054 EG |
1132 | scd_queues = BIT(priv->cfg->base_params->num_of_queues) - 1; |
1133 | scd_queues &= ~(BIT(IWL_IPAN_CMD_QUEUE_NUM) | | |
1134 | BIT(IWL_DEFAULT_CMD_QUEUE_NUM)); | |
1135 | ||
a3a0a599 EG |
1136 | if (drop) { |
1137 | IWL_DEBUG_TX_QUEUES(priv, "Flushing SCD queues: 0x%x\n", | |
1138 | scd_queues); | |
1139 | if (iwlagn_txfifo_flush(priv, scd_queues)) { | |
1140 | IWL_ERR(priv, "flush request fail\n"); | |
1141 | goto done; | |
1142 | } | |
7335613a | 1143 | } |
a3a0a599 | 1144 | |
a0855054 | 1145 | IWL_DEBUG_TX_QUEUES(priv, "wait transmit/flush all frames\n"); |
a3a0a599 | 1146 | iwl_trans_wait_tx_queue_empty(priv->trans, scd_queues); |
7335613a | 1147 | done: |
b1eea297 | 1148 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1149 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1150 | } | |
1151 | ||
a8182929 EG |
1152 | static void iwlagn_mac_event_callback(struct ieee80211_hw *hw, |
1153 | struct ieee80211_vif *vif, | |
1154 | const struct ieee80211_event *event) | |
7335613a | 1155 | { |
d0f76d68 | 1156 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 1157 | |
a8182929 EG |
1158 | if (event->type != RSSI_EVENT) |
1159 | return; | |
1160 | ||
7335613a | 1161 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
7335613a | 1162 | |
0d8877a1 JB |
1163 | if (priv->lib->bt_params && |
1164 | priv->lib->bt_params->advanced_bt_coexist) { | |
a8182929 | 1165 | if (event->u.rssi.data == RSSI_EVENT_LOW) |
7335613a | 1166 | priv->bt_enable_pspoll = true; |
a8182929 | 1167 | else if (event->u.rssi.data == RSSI_EVENT_HIGH) |
7335613a WYG |
1168 | priv->bt_enable_pspoll = false; |
1169 | ||
6e70d560 | 1170 | queue_work(priv->workqueue, &priv->bt_runtime_config); |
7335613a WYG |
1171 | } else { |
1172 | IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled," | |
1173 | "ignoring RSSI callback\n"); | |
1174 | } | |
1175 | ||
7335613a WYG |
1176 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1177 | } | |
1178 | ||
aca86268 JB |
1179 | static int iwlagn_mac_set_tim(struct ieee80211_hw *hw, |
1180 | struct ieee80211_sta *sta, bool set) | |
7335613a | 1181 | { |
d0f76d68 | 1182 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 1183 | |
1ee158d8 | 1184 | queue_work(priv->workqueue, &priv->beacon_update); |
7335613a WYG |
1185 | |
1186 | return 0; | |
1187 | } | |
1188 | ||
aca86268 JB |
1189 | static int iwlagn_mac_conf_tx(struct ieee80211_hw *hw, |
1190 | struct ieee80211_vif *vif, u16 queue, | |
1191 | const struct ieee80211_tx_queue_params *params) | |
0b7a4c78 | 1192 | { |
d0f76d68 | 1193 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1194 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
1195 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
0b7a4c78 WYG |
1196 | int q; |
1197 | ||
1198 | if (WARN_ON(!ctx)) | |
1199 | return -EINVAL; | |
1200 | ||
1201 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1202 | ||
83626404 | 1203 | if (!iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1204 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
1205 | return -EIO; | |
1206 | } | |
1207 | ||
1208 | if (queue >= AC_NUM) { | |
1209 | IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); | |
1210 | return 0; | |
1211 | } | |
1212 | ||
1213 | q = AC_NUM - 1 - queue; | |
1214 | ||
b1eea297 | 1215 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1216 | |
1217 | ctx->qos_data.def_qos_parm.ac[q].cw_min = | |
1218 | cpu_to_le16(params->cw_min); | |
1219 | ctx->qos_data.def_qos_parm.ac[q].cw_max = | |
1220 | cpu_to_le16(params->cw_max); | |
1221 | ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
1222 | ctx->qos_data.def_qos_parm.ac[q].edca_txop = | |
1223 | cpu_to_le16((params->txop * 32)); | |
1224 | ||
1225 | ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
1226 | ||
b1eea297 | 1227 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1228 | |
1229 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1230 | return 0; | |
1231 | } | |
1232 | ||
aca86268 | 1233 | static int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw) |
0b7a4c78 | 1234 | { |
d0f76d68 | 1235 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1236 | |
1237 | return priv->ibss_manager == IWL_IBSS_MANAGER; | |
1238 | } | |
1239 | ||
1240 | static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx) | |
1241 | { | |
1242 | iwl_connection_init_rx_config(priv, ctx); | |
1243 | ||
1244 | iwlagn_set_rxon_chain(priv, ctx); | |
1245 | ||
1246 | return iwlagn_commit_rxon(priv, ctx); | |
1247 | } | |
1248 | ||
aca86268 JB |
1249 | static int iwl_setup_interface(struct iwl_priv *priv, |
1250 | struct iwl_rxon_context *ctx) | |
0b7a4c78 WYG |
1251 | { |
1252 | struct ieee80211_vif *vif = ctx->vif; | |
1479177b | 1253 | int err, ac; |
0b7a4c78 | 1254 | |
b1eea297 | 1255 | lockdep_assert_held(&priv->mutex); |
0b7a4c78 WYG |
1256 | |
1257 | /* | |
1258 | * This variable will be correct only when there's just | |
1259 | * a single context, but all code using it is for hardware | |
1260 | * that supports only one context. | |
1261 | */ | |
1262 | priv->iw_mode = vif->type; | |
1263 | ||
1264 | ctx->is_active = true; | |
1265 | ||
1266 | err = iwl_set_mode(priv, ctx); | |
1267 | if (err) { | |
1268 | if (!ctx->always_active) | |
1269 | ctx->is_active = false; | |
1270 | return err; | |
1271 | } | |
1272 | ||
0d8877a1 | 1273 | if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist && |
0b7a4c78 WYG |
1274 | vif->type == NL80211_IFTYPE_ADHOC) { |
1275 | /* | |
1276 | * pretend to have high BT traffic as long as we | |
1277 | * are operating in IBSS mode, as this will cause | |
1278 | * the rate scaling etc. to behave as intended. | |
1279 | */ | |
1280 | priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH; | |
1281 | } | |
1282 | ||
1479177b JB |
1283 | /* set up queue mappings */ |
1284 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
1285 | vif->hw_queue[ac] = ctx->ac_to_queue[ac]; | |
1286 | ||
1287 | if (vif->type == NL80211_IFTYPE_AP) | |
1288 | vif->cab_queue = ctx->mcast_queue; | |
1289 | else | |
1290 | vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; | |
1291 | ||
0b7a4c78 WYG |
1292 | return 0; |
1293 | } | |
1294 | ||
1295 | static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, | |
1479177b | 1296 | struct ieee80211_vif *vif) |
0b7a4c78 | 1297 | { |
d0f76d68 | 1298 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1299 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
1300 | struct iwl_rxon_context *tmp, *ctx = NULL; | |
1301 | int err; | |
1302 | enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif); | |
8db4c7e2 | 1303 | bool reset = false; |
0b7a4c78 WYG |
1304 | |
1305 | IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n", | |
1306 | viftype, vif->addr); | |
1307 | ||
b1eea297 | 1308 | mutex_lock(&priv->mutex); |
0b7a4c78 | 1309 | |
83626404 | 1310 | if (!iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1311 | IWL_WARN(priv, "Try to add interface when device not ready\n"); |
1312 | err = -EINVAL; | |
1313 | goto out; | |
1314 | } | |
1315 | ||
1316 | for_each_context(priv, tmp) { | |
1317 | u32 possible_modes = | |
1318 | tmp->interface_modes | tmp->exclusive_interface_modes; | |
1319 | ||
1320 | if (tmp->vif) { | |
8db4c7e2 SG |
1321 | /* On reset we need to add the same interface again */ |
1322 | if (tmp->vif == vif) { | |
1323 | reset = true; | |
1324 | ctx = tmp; | |
1325 | break; | |
1326 | } | |
1327 | ||
0b7a4c78 WYG |
1328 | /* check if this busy context is exclusive */ |
1329 | if (tmp->exclusive_interface_modes & | |
1330 | BIT(tmp->vif->type)) { | |
1331 | err = -EINVAL; | |
1332 | goto out; | |
1333 | } | |
1334 | continue; | |
1335 | } | |
1336 | ||
1337 | if (!(possible_modes & BIT(viftype))) | |
1338 | continue; | |
1339 | ||
1340 | /* have maybe usable context w/o interface */ | |
1341 | ctx = tmp; | |
1342 | break; | |
1343 | } | |
1344 | ||
1345 | if (!ctx) { | |
1346 | err = -EOPNOTSUPP; | |
1347 | goto out; | |
1348 | } | |
1349 | ||
1350 | vif_priv->ctx = ctx; | |
1351 | ctx->vif = vif; | |
1352 | ||
04baaa27 JB |
1353 | /* |
1354 | * In SNIFFER device type, the firmware reports the FCS to | |
1355 | * the host, rather than snipping it off. Unfortunately, | |
1356 | * mac80211 doesn't (yet) provide a per-packet flag for | |
1357 | * this, so that we have to set the hardware flag based | |
1358 | * on the interfaces added. As the monitor interface can | |
1359 | * only be present by itself, and will be removed before | |
1360 | * other interfaces are added, this is safe. | |
1361 | */ | |
1362 | if (vif->type == NL80211_IFTYPE_MONITOR) | |
30686bf7 | 1363 | ieee80211_hw_set(priv->hw, RX_INCLUDES_FCS); |
04baaa27 | 1364 | else |
30686bf7 | 1365 | __clear_bit(IEEE80211_HW_RX_INCLUDES_FCS, priv->hw->flags); |
04baaa27 | 1366 | |
0b7a4c78 | 1367 | err = iwl_setup_interface(priv, ctx); |
8db4c7e2 | 1368 | if (!err || reset) |
0b7a4c78 WYG |
1369 | goto out; |
1370 | ||
1371 | ctx->vif = NULL; | |
1372 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
1373 | out: | |
b1eea297 | 1374 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1375 | |
1376 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1377 | return err; | |
1378 | } | |
1379 | ||
aca86268 JB |
1380 | static void iwl_teardown_interface(struct iwl_priv *priv, |
1381 | struct ieee80211_vif *vif, | |
1382 | bool mode_change) | |
0b7a4c78 WYG |
1383 | { |
1384 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); | |
1385 | ||
b1eea297 | 1386 | lockdep_assert_held(&priv->mutex); |
0b7a4c78 WYG |
1387 | |
1388 | if (priv->scan_vif == vif) { | |
1389 | iwl_scan_cancel_timeout(priv, 200); | |
1390 | iwl_force_scan_end(priv); | |
1391 | } | |
1392 | ||
1393 | if (!mode_change) { | |
1394 | iwl_set_mode(priv, ctx); | |
1395 | if (!ctx->always_active) | |
1396 | ctx->is_active = false; | |
1397 | } | |
1398 | ||
1399 | /* | |
1400 | * When removing the IBSS interface, overwrite the | |
1401 | * BT traffic load with the stored one from the last | |
1402 | * notification, if any. If this is a device that | |
1403 | * doesn't implement this, this has no effect since | |
1404 | * both values are the same and zero. | |
1405 | */ | |
1406 | if (vif->type == NL80211_IFTYPE_ADHOC) | |
1407 | priv->bt_traffic_load = priv->last_bt_traffic_load; | |
1408 | } | |
1409 | ||
1410 | static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw, | |
1411 | struct ieee80211_vif *vif) | |
1412 | { | |
d0f76d68 | 1413 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1414 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
1415 | ||
1416 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1417 | ||
b1eea297 | 1418 | mutex_lock(&priv->mutex); |
0b7a4c78 | 1419 | |
b9de521f | 1420 | WARN_ON(ctx->vif != vif); |
0b7a4c78 WYG |
1421 | ctx->vif = NULL; |
1422 | ||
1423 | iwl_teardown_interface(priv, vif, false); | |
1424 | ||
b1eea297 | 1425 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1426 | |
1427 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1428 | ||
1429 | } | |
1430 | ||
1431 | static int iwlagn_mac_change_interface(struct ieee80211_hw *hw, | |
e75dac92 JB |
1432 | struct ieee80211_vif *vif, |
1433 | enum nl80211_iftype newtype, bool newp2p) | |
0b7a4c78 | 1434 | { |
d0f76d68 | 1435 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
e75dac92 | 1436 | struct iwl_rxon_context *ctx, *tmp; |
0b7a4c78 WYG |
1437 | enum nl80211_iftype newviftype = newtype; |
1438 | u32 interface_modes; | |
1439 | int err; | |
1440 | ||
1441 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1442 | ||
1443 | newtype = ieee80211_iftype_p2p(newtype, newp2p); | |
1444 | ||
b1eea297 | 1445 | mutex_lock(&priv->mutex); |
0b7a4c78 | 1446 | |
e75dac92 JB |
1447 | ctx = iwl_rxon_ctx_from_vif(vif); |
1448 | ||
1449 | /* | |
1450 | * To simplify this code, only support changes on the | |
1451 | * BSS context. The PAN context is usually reassigned | |
1452 | * by creating/removing P2P interfaces anyway. | |
1453 | */ | |
1454 | if (ctx->ctxid != IWL_RXON_CTX_BSS) { | |
1455 | err = -EBUSY; | |
1456 | goto out; | |
1457 | } | |
1458 | ||
83626404 | 1459 | if (!ctx->vif || !iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1460 | /* |
1461 | * Huh? But wait ... this can maybe happen when | |
1462 | * we're in the middle of a firmware restart! | |
1463 | */ | |
1464 | err = -EBUSY; | |
1465 | goto out; | |
1466 | } | |
1467 | ||
e75dac92 | 1468 | /* Check if the switch is supported in the same context */ |
0b7a4c78 | 1469 | interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes; |
0b7a4c78 WYG |
1470 | if (!(interface_modes & BIT(newtype))) { |
1471 | err = -EBUSY; | |
1472 | goto out; | |
1473 | } | |
1474 | ||
0b7a4c78 WYG |
1475 | if (ctx->exclusive_interface_modes & BIT(newtype)) { |
1476 | for_each_context(priv, tmp) { | |
1477 | if (ctx == tmp) | |
1478 | continue; | |
1479 | ||
e75dac92 | 1480 | if (!tmp->is_active) |
0b7a4c78 WYG |
1481 | continue; |
1482 | ||
1483 | /* | |
1484 | * The current mode switch would be exclusive, but | |
1485 | * another context is active ... refuse the switch. | |
1486 | */ | |
1487 | err = -EBUSY; | |
1488 | goto out; | |
1489 | } | |
1490 | } | |
1491 | ||
1492 | /* success */ | |
1493 | iwl_teardown_interface(priv, vif, true); | |
1494 | vif->type = newviftype; | |
1495 | vif->p2p = newp2p; | |
1496 | err = iwl_setup_interface(priv, ctx); | |
1497 | WARN_ON(err); | |
1498 | /* | |
1499 | * We've switched internally, but submitting to the | |
1500 | * device may have failed for some reason. Mask this | |
1501 | * error, because otherwise mac80211 will not switch | |
1502 | * (and set the interface type back) and we'll be | |
1503 | * out of sync with it. | |
1504 | */ | |
1505 | err = 0; | |
1506 | ||
1507 | out: | |
b1eea297 | 1508 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1509 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1510 | ||
1511 | return err; | |
1512 | } | |
1513 | ||
aca86268 JB |
1514 | static int iwlagn_mac_hw_scan(struct ieee80211_hw *hw, |
1515 | struct ieee80211_vif *vif, | |
c56ef672 | 1516 | struct ieee80211_scan_request *hw_req) |
ba4c5319 | 1517 | { |
d0f76d68 | 1518 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
c56ef672 | 1519 | struct cfg80211_scan_request *req = &hw_req->req; |
ba4c5319 WYG |
1520 | int ret; |
1521 | ||
1522 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1523 | ||
1524 | if (req->n_channels == 0) | |
1525 | return -EINVAL; | |
1526 | ||
b1eea297 | 1527 | mutex_lock(&priv->mutex); |
ba4c5319 WYG |
1528 | |
1529 | /* | |
1530 | * If an internal scan is in progress, just set | |
1531 | * up the scan_request as per above. | |
1532 | */ | |
1533 | if (priv->scan_type != IWL_SCAN_NORMAL) { | |
1534 | IWL_DEBUG_SCAN(priv, | |
1535 | "SCAN request during internal scan - defer\n"); | |
1536 | priv->scan_request = req; | |
1537 | priv->scan_vif = vif; | |
1538 | ret = 0; | |
1539 | } else { | |
1540 | priv->scan_request = req; | |
1541 | priv->scan_vif = vif; | |
1542 | /* | |
1543 | * mac80211 will only ask for one band at a time | |
1544 | * so using channels[0] here is ok | |
1545 | */ | |
1546 | ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL, | |
1547 | req->channels[0]->band); | |
1548 | if (ret) { | |
1549 | priv->scan_request = NULL; | |
1550 | priv->scan_vif = NULL; | |
1551 | } | |
1552 | } | |
1553 | ||
1554 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1555 | ||
b1eea297 | 1556 | mutex_unlock(&priv->mutex); |
ba4c5319 WYG |
1557 | |
1558 | return ret; | |
1559 | } | |
1560 | ||
76b29331 WYG |
1561 | static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id) |
1562 | { | |
9451ca1a JB |
1563 | struct iwl_addsta_cmd cmd = { |
1564 | .mode = STA_CONTROL_MODIFY_MSK, | |
1565 | .station_flags_msk = STA_FLG_PWR_SAVE_MSK, | |
1566 | .sta.sta_id = sta_id, | |
1567 | }; | |
76b29331 | 1568 | |
9451ca1a | 1569 | iwl_send_add_sta(priv, &cmd, CMD_ASYNC); |
76b29331 WYG |
1570 | } |
1571 | ||
aca86268 JB |
1572 | static void iwlagn_mac_sta_notify(struct ieee80211_hw *hw, |
1573 | struct ieee80211_vif *vif, | |
1574 | enum sta_notify_cmd cmd, | |
1575 | struct ieee80211_sta *sta) | |
76b29331 | 1576 | { |
d0f76d68 | 1577 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
76b29331 WYG |
1578 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
1579 | int sta_id; | |
1580 | ||
1581 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1582 | ||
1583 | switch (cmd) { | |
1584 | case STA_NOTIFY_SLEEP: | |
1585 | WARN_ON(!sta_priv->client); | |
1586 | sta_priv->asleep = true; | |
1587 | if (atomic_read(&sta_priv->pending_frames) > 0) | |
1588 | ieee80211_sta_block_awake(hw, sta, true); | |
1589 | break; | |
1590 | case STA_NOTIFY_AWAKE: | |
1591 | WARN_ON(!sta_priv->client); | |
1592 | if (!sta_priv->asleep) | |
1593 | break; | |
1594 | sta_priv->asleep = false; | |
1595 | sta_id = iwl_sta_id(sta); | |
1596 | if (sta_id != IWL_INVALID_STATION) | |
1597 | iwl_sta_modify_ps_wake(priv, sta_id); | |
1598 | break; | |
1599 | default: | |
1600 | break; | |
1601 | } | |
1602 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1603 | } | |
1604 | ||
e5209263 | 1605 | const struct ieee80211_ops iwlagn_hw_ops = { |
7335613a WYG |
1606 | .tx = iwlagn_mac_tx, |
1607 | .start = iwlagn_mac_start, | |
1608 | .stop = iwlagn_mac_stop, | |
1609 | #ifdef CONFIG_PM_SLEEP | |
1610 | .suspend = iwlagn_mac_suspend, | |
1611 | .resume = iwlagn_mac_resume, | |
76ed2edd | 1612 | .set_wakeup = iwlagn_mac_set_wakeup, |
7335613a WYG |
1613 | #endif |
1614 | .add_interface = iwlagn_mac_add_interface, | |
1615 | .remove_interface = iwlagn_mac_remove_interface, | |
1616 | .change_interface = iwlagn_mac_change_interface, | |
1617 | .config = iwlagn_mac_config, | |
1618 | .configure_filter = iwlagn_configure_filter, | |
1619 | .set_key = iwlagn_mac_set_key, | |
1620 | .update_tkip_key = iwlagn_mac_update_tkip_key, | |
1621 | .set_rekey_data = iwlagn_mac_set_rekey_data, | |
1622 | .conf_tx = iwlagn_mac_conf_tx, | |
1623 | .bss_info_changed = iwlagn_bss_info_changed, | |
1624 | .ampdu_action = iwlagn_mac_ampdu_action, | |
1625 | .hw_scan = iwlagn_mac_hw_scan, | |
1626 | .sta_notify = iwlagn_mac_sta_notify, | |
fb5fe5b9 | 1627 | .sta_state = iwlagn_mac_sta_state, |
7335613a WYG |
1628 | .channel_switch = iwlagn_mac_channel_switch, |
1629 | .flush = iwlagn_mac_flush, | |
1630 | .tx_last_beacon = iwlagn_mac_tx_last_beacon, | |
a8182929 | 1631 | .event_callback = iwlagn_mac_event_callback, |
7335613a WYG |
1632 | .set_tim = iwlagn_mac_set_tim, |
1633 | }; | |
1634 | ||
1635 | /* This function both allocates and initializes hw and priv. */ | |
1636 | struct ieee80211_hw *iwl_alloc_all(void) | |
1637 | { | |
1638 | struct iwl_priv *priv; | |
d0f76d68 | 1639 | struct iwl_op_mode *op_mode; |
7335613a WYG |
1640 | /* mac80211 allocates memory for this device instance, including |
1641 | * space for this driver's private structure */ | |
1642 | struct ieee80211_hw *hw; | |
1643 | ||
d0f76d68 EG |
1644 | hw = ieee80211_alloc_hw(sizeof(struct iwl_priv) + |
1645 | sizeof(struct iwl_op_mode), &iwlagn_hw_ops); | |
7335613a WYG |
1646 | if (!hw) |
1647 | goto out; | |
1648 | ||
d0f76d68 EG |
1649 | op_mode = hw->priv; |
1650 | priv = IWL_OP_MODE_GET_DVM(op_mode); | |
7335613a WYG |
1651 | priv->hw = hw; |
1652 | ||
1653 | out: | |
1654 | return hw; | |
1655 | } |