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: | |
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> | |
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 */ | |
107 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
108 | IEEE80211_HW_AMPDU_AGGREGATION | | |
c65dd147 | 109 | IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC | |
7335613a | 110 | IEEE80211_HW_SPECTRUM_MGMT | |
1479177b JB |
111 | IEEE80211_HW_REPORTS_TX_ACK_STATUS | |
112 | IEEE80211_HW_QUEUE_CONTROL | | |
113 | IEEE80211_HW_SUPPORTS_PS | | |
114 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS | | |
f1e3e051 | 115 | IEEE80211_HW_WANT_MONITOR_VIF; |
1479177b JB |
116 | |
117 | hw->offchannel_tx_hw_queue = IWL_AUX_QUEUE; | |
53e1116e | 118 | hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FMT; |
7335613a WYG |
119 | |
120 | /* | |
121 | * Including the following line will crash some AP's. This | |
122 | * workaround removes the stimulus which causes the crash until | |
123 | * the AP software can be fixed. | |
124 | hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF; | |
125 | */ | |
126 | ||
b7998c8b | 127 | if (priv->nvm_data->sku_cap_11n_enable) |
0d8614b4 EP |
128 | hw->wiphy->features |= NL80211_FEATURE_DYNAMIC_SMPS | |
129 | NL80211_FEATURE_STATIC_SMPS; | |
7335613a | 130 | |
686681b0 JB |
131 | /* |
132 | * Enable 11w if advertised by firmware and software crypto | |
133 | * is not enabled (as the firmware will interpret some mgmt | |
134 | * packets, so enabling it with software crypto isn't safe) | |
135 | */ | |
136 | if (priv->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && | |
137 | !iwlwifi_mod_params.sw_crypto) | |
7335613a WYG |
138 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; |
139 | ||
140 | hw->sta_data_size = sizeof(struct iwl_station_priv); | |
141 | hw->vif_data_size = sizeof(struct iwl_vif_priv); | |
142 | ||
143 | for_each_context(priv, ctx) { | |
144 | hw->wiphy->interface_modes |= ctx->interface_modes; | |
145 | hw->wiphy->interface_modes |= ctx->exclusive_interface_modes; | |
146 | } | |
147 | ||
148 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
149 | ||
da4f87f0 | 150 | if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { |
7335613a WYG |
151 | hw->wiphy->iface_combinations = |
152 | iwlagn_iface_combinations_dualmode; | |
153 | hw->wiphy->n_iface_combinations = | |
154 | ARRAY_SIZE(iwlagn_iface_combinations_dualmode); | |
155 | } | |
156 | ||
a2f73b6c LR |
157 | hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
158 | hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | | |
159 | REGULATORY_DISABLE_BEACON_HINTS; | |
7335613a | 160 | |
fcb6ff5e | 161 | #ifdef CONFIG_PM_SLEEP |
6dfa8d01 | 162 | if (priv->fw->img[IWL_UCODE_WOWLAN].sec[0].len && |
ddaf5a5b JB |
163 | priv->trans->ops->d3_suspend && |
164 | priv->trans->ops->d3_resume && | |
68e8dfda | 165 | device_can_wakeup(priv->trans->dev)) { |
964dc9e2 JB |
166 | priv->wowlan_support.flags = WIPHY_WOWLAN_MAGIC_PKT | |
167 | WIPHY_WOWLAN_DISCONNECT | | |
168 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
169 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
65de7e84 | 170 | if (!iwlwifi_mod_params.sw_crypto) |
964dc9e2 | 171 | priv->wowlan_support.flags |= |
7335613a WYG |
172 | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
173 | WIPHY_WOWLAN_GTK_REKEY_FAILURE; | |
174 | ||
964dc9e2 JB |
175 | priv->wowlan_support.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS; |
176 | priv->wowlan_support.pattern_min_len = | |
7335613a | 177 | IWLAGN_WOWLAN_MIN_PATTERN_LEN; |
964dc9e2 | 178 | priv->wowlan_support.pattern_max_len = |
7335613a | 179 | IWLAGN_WOWLAN_MAX_PATTERN_LEN; |
964dc9e2 | 180 | hw->wiphy->wowlan = &priv->wowlan_support; |
7335613a | 181 | } |
fcb6ff5e | 182 | #endif |
7335613a | 183 | |
65de7e84 | 184 | if (iwlwifi_mod_params.power_save) |
7335613a WYG |
185 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
186 | else | |
187 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
188 | ||
189 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; | |
4f9bfbb1 DS |
190 | /* we create the 802.11 header and a max-length SSID element */ |
191 | hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 34; | |
7335613a | 192 | |
1479177b JB |
193 | /* |
194 | * We don't use all queues: 4 and 9 are unused and any | |
195 | * aggregation queue gets mapped down to the AC queue. | |
196 | */ | |
197 | hw->queues = IWLAGN_FIRST_AMPDU_QUEUE; | |
7335613a WYG |
198 | |
199 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; | |
200 | ||
b7998c8b | 201 | if (priv->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) |
7335613a | 202 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
b7998c8b EL |
203 | &priv->nvm_data->bands[IEEE80211_BAND_2GHZ]; |
204 | if (priv->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) | |
7335613a | 205 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
b7998c8b | 206 | &priv->nvm_data->bands[IEEE80211_BAND_5GHZ]; |
7335613a | 207 | |
68e8dfda | 208 | hw->wiphy->hw_version = priv->trans->hw_id; |
0ba958eb | 209 | |
7335613a WYG |
210 | iwl_leds_init(priv); |
211 | ||
212 | ret = ieee80211_register_hw(priv->hw); | |
213 | if (ret) { | |
214 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); | |
0e1fa7ef | 215 | iwl_leds_exit(priv); |
7335613a WYG |
216 | return ret; |
217 | } | |
218 | priv->mac80211_registered = 1; | |
219 | ||
220 | return 0; | |
221 | } | |
222 | ||
09af1403 DF |
223 | void iwlagn_mac_unregister(struct iwl_priv *priv) |
224 | { | |
225 | if (!priv->mac80211_registered) | |
226 | return; | |
227 | iwl_leds_exit(priv); | |
228 | ieee80211_unregister_hw(priv->hw); | |
229 | priv->mac80211_registered = 0; | |
230 | } | |
231 | ||
7335613a WYG |
232 | static int __iwl_up(struct iwl_priv *priv) |
233 | { | |
234 | struct iwl_rxon_context *ctx; | |
235 | int ret; | |
236 | ||
b1eea297 | 237 | lockdep_assert_held(&priv->mutex); |
7335613a | 238 | |
83626404 | 239 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
7335613a WYG |
240 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
241 | return -EIO; | |
242 | } | |
243 | ||
244 | for_each_context(priv, ctx) { | |
245 | ret = iwlagn_alloc_bcast_station(priv, ctx); | |
246 | if (ret) { | |
247 | iwl_dealloc_bcast_stations(priv); | |
248 | return ret; | |
249 | } | |
250 | } | |
251 | ||
e1991885 | 252 | ret = iwl_run_init_ucode(priv); |
7335613a WYG |
253 | if (ret) { |
254 | IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret); | |
255 | goto error; | |
256 | } | |
257 | ||
e1991885 | 258 | ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR); |
7335613a WYG |
259 | if (ret) { |
260 | IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret); | |
261 | goto error; | |
262 | } | |
263 | ||
264 | ret = iwl_alive_start(priv); | |
265 | if (ret) | |
266 | goto error; | |
267 | return 0; | |
268 | ||
269 | error: | |
83626404 | 270 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
78e5a464 | 271 | iwl_down(priv); |
83626404 | 272 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
7335613a WYG |
273 | |
274 | IWL_ERR(priv, "Unable to initialize device.\n"); | |
275 | return ret; | |
276 | } | |
277 | ||
278 | static int iwlagn_mac_start(struct ieee80211_hw *hw) | |
279 | { | |
d0f76d68 | 280 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
281 | int ret; |
282 | ||
283 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
284 | ||
285 | /* we should be verifying the device is ready to be opened */ | |
b1eea297 | 286 | mutex_lock(&priv->mutex); |
7335613a | 287 | ret = __iwl_up(priv); |
b1eea297 | 288 | mutex_unlock(&priv->mutex); |
7335613a WYG |
289 | if (ret) |
290 | return ret; | |
291 | ||
292 | IWL_DEBUG_INFO(priv, "Start UP work done.\n"); | |
293 | ||
294 | /* Now we should be done, and the READY bit should be set. */ | |
83626404 | 295 | if (WARN_ON(!test_bit(STATUS_READY, &priv->status))) |
7335613a WYG |
296 | ret = -EIO; |
297 | ||
298 | iwlagn_led_enable(priv); | |
299 | ||
300 | priv->is_open = 1; | |
301 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
302 | return 0; | |
303 | } | |
304 | ||
aca86268 | 305 | static void iwlagn_mac_stop(struct ieee80211_hw *hw) |
7335613a | 306 | { |
d0f76d68 | 307 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
308 | |
309 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
310 | ||
311 | if (!priv->is_open) | |
312 | return; | |
313 | ||
314 | priv->is_open = 0; | |
315 | ||
b1eea297 | 316 | mutex_lock(&priv->mutex); |
7335613a | 317 | iwl_down(priv); |
b1eea297 | 318 | mutex_unlock(&priv->mutex); |
78e5a464 EG |
319 | |
320 | iwl_cancel_deferred_work(priv); | |
7335613a | 321 | |
1ee158d8 | 322 | flush_workqueue(priv->workqueue); |
7335613a | 323 | |
7335613a WYG |
324 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
325 | } | |
326 | ||
aca86268 JB |
327 | static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw, |
328 | struct ieee80211_vif *vif, | |
329 | struct cfg80211_gtk_rekey_data *data) | |
7335613a | 330 | { |
d0f76d68 | 331 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 332 | |
65de7e84 | 333 | if (iwlwifi_mod_params.sw_crypto) |
7335613a WYG |
334 | return; |
335 | ||
336 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 337 | mutex_lock(&priv->mutex); |
7335613a WYG |
338 | |
339 | if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif) | |
340 | goto out; | |
341 | ||
342 | memcpy(priv->kek, data->kek, NL80211_KEK_LEN); | |
343 | memcpy(priv->kck, data->kck, NL80211_KCK_LEN); | |
344 | priv->replay_ctr = | |
345 | cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); | |
346 | priv->have_rekey_data = true; | |
347 | ||
348 | out: | |
b1eea297 | 349 | mutex_unlock(&priv->mutex); |
7335613a WYG |
350 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
351 | } | |
352 | ||
353 | #ifdef CONFIG_PM_SLEEP | |
7335613a | 354 | |
aca86268 JB |
355 | static int iwlagn_mac_suspend(struct ieee80211_hw *hw, |
356 | struct cfg80211_wowlan *wowlan) | |
7335613a | 357 | { |
d0f76d68 | 358 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 359 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
023ca58f | 360 | int ret; |
7335613a WYG |
361 | |
362 | if (WARN_ON(!wowlan)) | |
363 | return -EINVAL; | |
364 | ||
365 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 366 | mutex_lock(&priv->mutex); |
7335613a WYG |
367 | |
368 | /* Don't attempt WoWLAN when not associated, tear down instead. */ | |
369 | if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION || | |
370 | !iwl_is_associated_ctx(ctx)) { | |
371 | ret = 1; | |
372 | goto out; | |
373 | } | |
374 | ||
ea886a60 | 375 | ret = iwlagn_suspend(priv, wowlan); |
7335613a WYG |
376 | if (ret) |
377 | goto error; | |
378 | ||
8ade6285 JB |
379 | /* let the ucode operate on its own */ |
380 | iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_SET, | |
381 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); | |
382 | ||
debff618 | 383 | iwl_trans_d3_suspend(priv->trans, false); |
7335613a WYG |
384 | |
385 | goto out; | |
386 | ||
387 | error: | |
15b86bff | 388 | priv->wowlan = false; |
7335613a WYG |
389 | iwlagn_prepare_restart(priv); |
390 | ieee80211_restart_hw(priv->hw); | |
391 | out: | |
b1eea297 | 392 | mutex_unlock(&priv->mutex); |
7335613a WYG |
393 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
394 | ||
395 | return ret; | |
396 | } | |
397 | ||
5718d27f JB |
398 | struct iwl_resume_data { |
399 | struct iwl_priv *priv; | |
400 | struct iwlagn_wowlan_status *cmd; | |
401 | bool valid; | |
402 | }; | |
403 | ||
404 | static bool iwl_resume_status_fn(struct iwl_notif_wait_data *notif_wait, | |
405 | struct iwl_rx_packet *pkt, void *data) | |
406 | { | |
407 | struct iwl_resume_data *resume_data = data; | |
408 | struct iwl_priv *priv = resume_data->priv; | |
5718d27f | 409 | |
65b30348 | 410 | if (iwl_rx_packet_payload_len(pkt) != sizeof(*resume_data->cmd)) { |
5718d27f JB |
411 | IWL_ERR(priv, "rx wrong size data\n"); |
412 | return true; | |
413 | } | |
414 | memcpy(resume_data->cmd, pkt->data, sizeof(*resume_data->cmd)); | |
415 | resume_data->valid = true; | |
416 | ||
417 | return true; | |
418 | } | |
419 | ||
7335613a WYG |
420 | static int iwlagn_mac_resume(struct ieee80211_hw *hw) |
421 | { | |
d0f76d68 | 422 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
423 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
424 | struct ieee80211_vif *vif; | |
5718d27f JB |
425 | u32 base; |
426 | int ret; | |
427 | enum iwl_d3_status d3_status; | |
428 | struct error_table_start { | |
429 | /* cf. struct iwl_error_event_table */ | |
430 | u32 valid; | |
431 | u32 error_id; | |
432 | } err_info; | |
433 | struct iwl_notification_wait status_wait; | |
434 | static const u8 status_cmd[] = { | |
435 | REPLY_WOWLAN_GET_STATUS, | |
436 | }; | |
437 | struct iwlagn_wowlan_status status_data = {}; | |
438 | struct iwl_resume_data resume_data = { | |
439 | .priv = priv, | |
440 | .cmd = &status_data, | |
441 | .valid = false, | |
442 | }; | |
443 | struct cfg80211_wowlan_wakeup wakeup = { | |
444 | .pattern_idx = -1, | |
445 | }; | |
446 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
447 | const struct fw_img *img; | |
448 | #endif | |
7335613a WYG |
449 | |
450 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 451 | mutex_lock(&priv->mutex); |
7335613a | 452 | |
5718d27f JB |
453 | /* we'll clear ctx->vif during iwlagn_prepare_restart() */ |
454 | vif = ctx->vif; | |
455 | ||
debff618 | 456 | ret = iwl_trans_d3_resume(priv->trans, &d3_status, false); |
5718d27f JB |
457 | if (ret) |
458 | goto out_unlock; | |
459 | ||
460 | if (d3_status != IWL_D3_STATUS_ALIVE) { | |
461 | IWL_INFO(priv, "Device was reset during suspend\n"); | |
462 | goto out_unlock; | |
463 | } | |
7335613a | 464 | |
8ade6285 JB |
465 | /* uCode is no longer operating by itself */ |
466 | iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR, | |
467 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); | |
468 | ||
2fdfc476 | 469 | base = priv->device_pointers.error_event_table; |
5718d27f JB |
470 | if (!iwlagn_hw_valid_rtc_data_addr(base)) { |
471 | IWL_WARN(priv, "Invalid error table during resume!\n"); | |
472 | goto out_unlock; | |
473 | } | |
474 | ||
475 | iwl_trans_read_mem_bytes(priv->trans, base, | |
476 | &err_info, sizeof(err_info)); | |
477 | ||
478 | if (err_info.valid) { | |
479 | IWL_INFO(priv, "error table is valid (%d, 0x%x)\n", | |
480 | err_info.valid, err_info.error_id); | |
481 | if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) { | |
482 | wakeup.rfkill_release = true; | |
483 | ieee80211_report_wowlan_wakeup(vif, &wakeup, | |
484 | GFP_KERNEL); | |
7335613a | 485 | } |
5718d27f JB |
486 | goto out_unlock; |
487 | } | |
7335613a WYG |
488 | |
489 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
5718d27f JB |
490 | img = &priv->fw->img[IWL_UCODE_WOWLAN]; |
491 | if (!priv->wowlan_sram) | |
492 | priv->wowlan_sram = | |
493 | kzalloc(img->sec[IWL_UCODE_SECTION_DATA].len, | |
494 | GFP_KERNEL); | |
495 | ||
496 | if (priv->wowlan_sram) | |
497 | iwl_trans_read_mem(priv->trans, 0x800000, | |
498 | priv->wowlan_sram, | |
499 | img->sec[IWL_UCODE_SECTION_DATA].len / 4); | |
7335613a | 500 | #endif |
7335613a | 501 | |
5718d27f JB |
502 | /* |
503 | * This is very strange. The GET_STATUS command is sent but the device | |
504 | * doesn't reply properly, it seems it doesn't close the RBD so one is | |
505 | * always left open ... As a result, we need to send another command | |
506 | * and have to reset the driver afterwards. As we need to switch to | |
507 | * runtime firmware again that'll happen. | |
508 | */ | |
509 | ||
510 | iwl_init_notification_wait(&priv->notif_wait, &status_wait, status_cmd, | |
511 | ARRAY_SIZE(status_cmd), iwl_resume_status_fn, | |
512 | &resume_data); | |
513 | ||
514 | iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_GET_STATUS, CMD_ASYNC, 0, NULL); | |
515 | iwl_dvm_send_cmd_pdu(priv, REPLY_ECHO, CMD_ASYNC, 0, NULL); | |
516 | /* an RBD is left open in the firmware now! */ | |
517 | ||
518 | ret = iwl_wait_notification(&priv->notif_wait, &status_wait, HZ/5); | |
519 | if (ret) | |
520 | goto out_unlock; | |
521 | ||
522 | if (resume_data.valid && priv->contexts[IWL_RXON_CTX_BSS].vif) { | |
523 | u32 reasons = le32_to_cpu(status_data.wakeup_reason); | |
524 | struct cfg80211_wowlan_wakeup *wakeup_report; | |
525 | ||
526 | IWL_INFO(priv, "WoWLAN wakeup reason(s): 0x%.8x\n", reasons); | |
527 | ||
528 | if (reasons) { | |
529 | if (reasons & IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET) | |
530 | wakeup.magic_pkt = true; | |
531 | if (reasons & IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH) | |
532 | wakeup.pattern_idx = status_data.pattern_number; | |
533 | if (reasons & (IWLAGN_WOWLAN_WAKEUP_BEACON_MISS | | |
534 | IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE)) | |
535 | wakeup.disconnect = true; | |
536 | if (reasons & IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL) | |
537 | wakeup.gtk_rekey_failure = true; | |
538 | if (reasons & IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ) | |
539 | wakeup.eap_identity_req = true; | |
540 | if (reasons & IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE) | |
541 | wakeup.four_way_handshake = true; | |
542 | wakeup_report = &wakeup; | |
543 | } else { | |
544 | wakeup_report = NULL; | |
545 | } | |
546 | ||
547 | ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); | |
548 | } | |
7335613a | 549 | |
15b86bff | 550 | priv->wowlan = false; |
7335613a | 551 | |
7335613a WYG |
552 | iwlagn_prepare_restart(priv); |
553 | ||
554 | memset((void *)&ctx->active, 0, sizeof(ctx->active)); | |
555 | iwl_connection_init_rx_config(priv, ctx); | |
556 | iwlagn_set_rxon_chain(priv, ctx); | |
557 | ||
5718d27f | 558 | out_unlock: |
b1eea297 | 559 | mutex_unlock(&priv->mutex); |
7335613a WYG |
560 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
561 | ||
562 | ieee80211_resume_disconnect(vif); | |
563 | ||
564 | return 1; | |
565 | } | |
566 | ||
76ed2edd JB |
567 | static void iwlagn_mac_set_wakeup(struct ieee80211_hw *hw, bool enabled) |
568 | { | |
569 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
570 | ||
571 | device_set_wakeup_enable(priv->trans->dev, enabled); | |
572 | } | |
7335613a WYG |
573 | #endif |
574 | ||
36323f81 TH |
575 | static void iwlagn_mac_tx(struct ieee80211_hw *hw, |
576 | struct ieee80211_tx_control *control, | |
577 | struct sk_buff *skb) | |
7335613a | 578 | { |
d0f76d68 | 579 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 580 | |
36323f81 | 581 | if (iwlagn_tx_skb(priv, control->sta, skb)) |
31df3bb7 | 582 | ieee80211_free_txskb(hw, skb); |
7335613a WYG |
583 | } |
584 | ||
aca86268 JB |
585 | static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw, |
586 | struct ieee80211_vif *vif, | |
587 | struct ieee80211_key_conf *keyconf, | |
588 | struct ieee80211_sta *sta, | |
589 | u32 iv32, u16 *phase1key) | |
7335613a | 590 | { |
d0f76d68 | 591 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
592 | |
593 | iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key); | |
594 | } | |
595 | ||
aca86268 JB |
596 | static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
597 | struct ieee80211_vif *vif, | |
598 | struct ieee80211_sta *sta, | |
599 | struct ieee80211_key_conf *key) | |
7335613a | 600 | { |
d0f76d68 | 601 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
602 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
603 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
604 | int ret; | |
605 | bool is_default_wep_key = false; | |
606 | ||
607 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
608 | ||
65de7e84 | 609 | if (iwlwifi_mod_params.sw_crypto) { |
7335613a WYG |
610 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); |
611 | return -EOPNOTSUPP; | |
612 | } | |
613 | ||
a7e12c8e JB |
614 | switch (key->cipher) { |
615 | case WLAN_CIPHER_SUITE_TKIP: | |
616 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
617 | /* fall through */ | |
618 | case WLAN_CIPHER_SUITE_CCMP: | |
619 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
620 | break; | |
621 | default: | |
622 | break; | |
623 | } | |
624 | ||
7335613a WYG |
625 | /* |
626 | * We could program these keys into the hardware as well, but we | |
627 | * don't expect much multicast traffic in IBSS and having keys | |
628 | * for more stations is probably more useful. | |
629 | * | |
630 | * Mark key TX-only and return 0. | |
631 | */ | |
632 | if (vif->type == NL80211_IFTYPE_ADHOC && | |
633 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { | |
634 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
635 | return 0; | |
636 | } | |
637 | ||
638 | /* If they key was TX-only, accept deletion */ | |
639 | if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET) | |
640 | return 0; | |
641 | ||
b1eea297 | 642 | mutex_lock(&priv->mutex); |
7335613a WYG |
643 | iwl_scan_cancel_timeout(priv, 100); |
644 | ||
645 | BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT); | |
646 | ||
647 | /* | |
648 | * If we are getting WEP group key and we didn't receive any key mapping | |
649 | * so far, we are in legacy wep mode (group key only), otherwise we are | |
650 | * in 1X mode. | |
651 | * In legacy wep mode, we use another host command to the uCode. | |
652 | */ | |
653 | if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || | |
654 | key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) { | |
655 | if (cmd == SET_KEY) | |
656 | is_default_wep_key = !ctx->key_mapping_keys; | |
657 | else | |
658 | is_default_wep_key = | |
659 | key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT; | |
660 | } | |
661 | ||
662 | ||
663 | switch (cmd) { | |
664 | case SET_KEY: | |
665 | if (is_default_wep_key) { | |
666 | ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key); | |
667 | break; | |
668 | } | |
669 | ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta); | |
670 | if (ret) { | |
671 | /* | |
672 | * can't add key for RX, but we don't need it | |
673 | * in the device for TX so still return 0 | |
674 | */ | |
675 | ret = 0; | |
676 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
677 | } | |
678 | ||
679 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); | |
680 | break; | |
681 | case DISABLE_KEY: | |
682 | if (is_default_wep_key) | |
683 | ret = iwl_remove_default_wep_key(priv, ctx, key); | |
684 | else | |
685 | ret = iwl_remove_dynamic_key(priv, ctx, key, sta); | |
686 | ||
687 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); | |
688 | break; | |
689 | default: | |
690 | ret = -EINVAL; | |
691 | } | |
692 | ||
b1eea297 | 693 | mutex_unlock(&priv->mutex); |
7335613a WYG |
694 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
695 | ||
696 | return ret; | |
697 | } | |
698 | ||
205e2210 EG |
699 | static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) |
700 | { | |
701 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) | |
702 | return false; | |
703 | return true; | |
704 | } | |
705 | ||
706 | static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) | |
707 | { | |
708 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) | |
709 | return false; | |
710 | if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) | |
711 | return true; | |
712 | ||
713 | /* disabled by default */ | |
714 | return false; | |
715 | } | |
716 | ||
aca86268 JB |
717 | static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, |
718 | struct ieee80211_vif *vif, | |
719 | enum ieee80211_ampdu_mlme_action action, | |
720 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, | |
721 | u8 buf_size) | |
7335613a | 722 | { |
d0f76d68 | 723 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
724 | int ret = -EINVAL; |
725 | struct iwl_station_priv *sta_priv = (void *) sta->drv_priv; | |
7335613a WYG |
726 | |
727 | IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", | |
728 | sta->addr, tid); | |
729 | ||
b7998c8b | 730 | if (!(priv->nvm_data->sku_cap_11n_enable)) |
7335613a WYG |
731 | return -EACCES; |
732 | ||
733 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 734 | mutex_lock(&priv->mutex); |
7335613a WYG |
735 | |
736 | switch (action) { | |
737 | case IEEE80211_AMPDU_RX_START: | |
205e2210 | 738 | if (!iwl_enable_rx_ampdu(priv->cfg)) |
7428994d | 739 | break; |
7335613a WYG |
740 | IWL_DEBUG_HT(priv, "start Rx\n"); |
741 | ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn); | |
742 | break; | |
743 | case IEEE80211_AMPDU_RX_STOP: | |
744 | IWL_DEBUG_HT(priv, "stop Rx\n"); | |
745 | ret = iwl_sta_rx_agg_stop(priv, sta, tid); | |
7335613a WYG |
746 | break; |
747 | case IEEE80211_AMPDU_TX_START: | |
4beaf6c2 | 748 | if (!priv->trans->ops->txq_enable) |
9eae88fa | 749 | break; |
205e2210 | 750 | if (!iwl_enable_tx_ampdu(priv->cfg)) |
7428994d | 751 | break; |
7335613a WYG |
752 | IWL_DEBUG_HT(priv, "start Tx\n"); |
753 | ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn); | |
754 | break; | |
18b559d5 JB |
755 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
756 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
2d055afd EG |
757 | IWL_DEBUG_HT(priv, "Flush Tx\n"); |
758 | ret = iwlagn_tx_agg_flush(priv, vif, sta, tid); | |
759 | break; | |
760 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
7335613a WYG |
761 | IWL_DEBUG_HT(priv, "stop Tx\n"); |
762 | ret = iwlagn_tx_agg_stop(priv, vif, sta, tid); | |
763 | if ((ret == 0) && (priv->agg_tids_count > 0)) { | |
764 | priv->agg_tids_count--; | |
765 | IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", | |
766 | priv->agg_tids_count); | |
767 | } | |
b9ad70da | 768 | if (!priv->agg_tids_count && |
9e295116 | 769 | priv->hw_params.use_rts_for_aggregation) { |
7335613a WYG |
770 | /* |
771 | * switch off RTS/CTS if it was previously enabled | |
772 | */ | |
773 | sta_priv->lq_sta.lq.general_params.flags &= | |
774 | ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; | |
775 | iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), | |
776 | &sta_priv->lq_sta.lq, CMD_ASYNC, false); | |
777 | } | |
778 | break; | |
779 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
822e8b2a | 780 | ret = iwlagn_tx_agg_oper(priv, vif, sta, tid, buf_size); |
7335613a WYG |
781 | break; |
782 | } | |
b1eea297 | 783 | mutex_unlock(&priv->mutex); |
7335613a WYG |
784 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
785 | return ret; | |
786 | } | |
787 | ||
788 | static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, | |
789 | struct ieee80211_vif *vif, | |
790 | struct ieee80211_sta *sta) | |
791 | { | |
d0f76d68 | 792 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
793 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
794 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
795 | bool is_ap = vif->type == NL80211_IFTYPE_STATION; | |
fb5fe5b9 | 796 | int ret; |
7335613a WYG |
797 | u8 sta_id; |
798 | ||
7335613a WYG |
799 | IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", |
800 | sta->addr); | |
801 | sta_priv->sta_id = IWL_INVALID_STATION; | |
802 | ||
803 | atomic_set(&sta_priv->pending_frames, 0); | |
804 | if (vif->type == NL80211_IFTYPE_AP) | |
805 | sta_priv->client = true; | |
806 | ||
807 | ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr, | |
808 | is_ap, sta, &sta_id); | |
809 | if (ret) { | |
810 | IWL_ERR(priv, "Unable to add station %pM (%d)\n", | |
811 | sta->addr, ret); | |
812 | /* Should we return success if return code is EEXIST ? */ | |
fb5fe5b9 | 813 | return ret; |
7335613a WYG |
814 | } |
815 | ||
816 | sta_priv->sta_id = sta_id; | |
817 | ||
fb5fe5b9 JB |
818 | return 0; |
819 | } | |
820 | ||
821 | static int iwlagn_mac_sta_remove(struct ieee80211_hw *hw, | |
822 | struct ieee80211_vif *vif, | |
823 | struct ieee80211_sta *sta) | |
824 | { | |
825 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
826 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
827 | int ret; | |
828 | ||
97420515 JB |
829 | IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", sta->addr); |
830 | ||
831 | if (vif->type == NL80211_IFTYPE_STATION) { | |
832 | /* | |
833 | * Station will be removed from device when the RXON | |
834 | * is set to unassociated -- just deactivate it here | |
835 | * to avoid re-programming it. | |
836 | */ | |
837 | ret = 0; | |
838 | iwl_deactivate_station(priv, sta_priv->sta_id, sta->addr); | |
839 | } else { | |
840 | ret = iwl_remove_station(priv, sta_priv->sta_id, sta->addr); | |
841 | if (ret) | |
842 | IWL_DEBUG_QUIET_RFKILL(priv, | |
843 | "Error removing station %pM\n", sta->addr); | |
844 | } | |
fb5fe5b9 JB |
845 | return ret; |
846 | } | |
847 | ||
aca86268 JB |
848 | static int iwlagn_mac_sta_state(struct ieee80211_hw *hw, |
849 | struct ieee80211_vif *vif, | |
850 | struct ieee80211_sta *sta, | |
851 | enum ieee80211_sta_state old_state, | |
852 | enum ieee80211_sta_state new_state) | |
fb5fe5b9 JB |
853 | { |
854 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
ab0bd5b3 | 855 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
fb5fe5b9 | 856 | enum { |
ab0bd5b3 | 857 | NONE, ADD, REMOVE, HT_RATE_INIT, ADD_RATE_INIT, |
fb5fe5b9 JB |
858 | } op = NONE; |
859 | int ret; | |
860 | ||
861 | IWL_DEBUG_MAC80211(priv, "station %pM state change %d->%d\n", | |
862 | sta->addr, old_state, new_state); | |
863 | ||
b1eea297 | 864 | mutex_lock(&priv->mutex); |
fb5fe5b9 JB |
865 | if (vif->type == NL80211_IFTYPE_STATION) { |
866 | if (old_state == IEEE80211_STA_NOTEXIST && | |
867 | new_state == IEEE80211_STA_NONE) | |
868 | op = ADD; | |
869 | else if (old_state == IEEE80211_STA_NONE && | |
870 | new_state == IEEE80211_STA_NOTEXIST) | |
871 | op = REMOVE; | |
872 | else if (old_state == IEEE80211_STA_AUTH && | |
873 | new_state == IEEE80211_STA_ASSOC) | |
ab0bd5b3 | 874 | op = HT_RATE_INIT; |
fb5fe5b9 JB |
875 | } else { |
876 | if (old_state == IEEE80211_STA_AUTH && | |
877 | new_state == IEEE80211_STA_ASSOC) | |
878 | op = ADD_RATE_INIT; | |
879 | else if (old_state == IEEE80211_STA_ASSOC && | |
880 | new_state == IEEE80211_STA_AUTH) | |
881 | op = REMOVE; | |
882 | } | |
883 | ||
884 | switch (op) { | |
885 | case ADD: | |
886 | ret = iwlagn_mac_sta_add(hw, vif, sta); | |
eac9ac6d JB |
887 | if (ret) |
888 | break; | |
889 | /* | |
890 | * Clear the in-progress flag, the AP station entry was added | |
891 | * but we'll initialize LQ only when we've associated (which | |
892 | * would also clear the in-progress flag). This is necessary | |
893 | * in case we never initialize LQ because association fails. | |
894 | */ | |
895 | spin_lock_bh(&priv->sta_lock); | |
896 | priv->stations[iwl_sta_id(sta)].used &= | |
897 | ~IWL_STA_UCODE_INPROGRESS; | |
898 | spin_unlock_bh(&priv->sta_lock); | |
fb5fe5b9 JB |
899 | break; |
900 | case REMOVE: | |
901 | ret = iwlagn_mac_sta_remove(hw, vif, sta); | |
902 | break; | |
903 | case ADD_RATE_INIT: | |
904 | ret = iwlagn_mac_sta_add(hw, vif, sta); | |
905 | if (ret) | |
906 | break; | |
fb5fe5b9 JB |
907 | /* Initialize rate scaling */ |
908 | IWL_DEBUG_INFO(priv, | |
909 | "Initializing rate scaling for station %pM\n", | |
910 | sta->addr); | |
911 | iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); | |
912 | ret = 0; | |
913 | break; | |
ab0bd5b3 JB |
914 | case HT_RATE_INIT: |
915 | /* Initialize rate scaling */ | |
916 | ret = iwl_sta_update_ht(priv, vif_priv->ctx, sta); | |
917 | if (ret) | |
918 | break; | |
919 | IWL_DEBUG_INFO(priv, | |
920 | "Initializing rate scaling for station %pM\n", | |
921 | sta->addr); | |
922 | iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); | |
923 | ret = 0; | |
924 | break; | |
fb5fe5b9 JB |
925 | default: |
926 | ret = 0; | |
927 | break; | |
928 | } | |
929 | ||
930 | /* | |
931 | * mac80211 might WARN if we fail, but due the way we | |
932 | * (badly) handle hard rfkill, we might fail here | |
933 | */ | |
83626404 | 934 | if (iwl_is_rfkill(priv)) |
fb5fe5b9 JB |
935 | ret = 0; |
936 | ||
b1eea297 | 937 | mutex_unlock(&priv->mutex); |
7335613a WYG |
938 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
939 | ||
940 | return ret; | |
941 | } | |
942 | ||
aca86268 | 943 | static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, |
0f791eb4 | 944 | struct ieee80211_vif *vif, |
aca86268 | 945 | struct ieee80211_channel_switch *ch_switch) |
7335613a | 946 | { |
d0f76d68 | 947 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 948 | struct ieee80211_conf *conf = &hw->conf; |
85220d71 | 949 | struct ieee80211_channel *channel = ch_switch->chandef.chan; |
7335613a WYG |
950 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; |
951 | /* | |
952 | * MULTI-FIXME | |
953 | * When we add support for multiple interfaces, we need to | |
954 | * revisit this. The channel switch command in the device | |
955 | * only affects the BSS context, but what does that really | |
956 | * mean? And what if we get a CSA on the second interface? | |
957 | * This needs a lot of work. | |
958 | */ | |
959 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
960 | u16 ch; | |
961 | ||
962 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
963 | ||
b1eea297 | 964 | mutex_lock(&priv->mutex); |
7335613a | 965 | |
83626404 | 966 | if (iwl_is_rfkill(priv)) |
7335613a WYG |
967 | goto out; |
968 | ||
83626404 DF |
969 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || |
970 | test_bit(STATUS_SCANNING, &priv->status) || | |
971 | test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) | |
7335613a WYG |
972 | goto out; |
973 | ||
974 | if (!iwl_is_associated_ctx(ctx)) | |
975 | goto out; | |
976 | ||
e9676695 | 977 | if (!priv->lib->set_channel_switch) |
7335613a WYG |
978 | goto out; |
979 | ||
980 | ch = channel->hw_value; | |
981 | if (le16_to_cpu(ctx->active.channel) == ch) | |
982 | goto out; | |
983 | ||
7335613a WYG |
984 | priv->current_ht_config.smps = conf->smps_mode; |
985 | ||
986 | /* Configure HT40 channels */ | |
85220d71 JB |
987 | switch (cfg80211_get_chandef_type(&ch_switch->chandef)) { |
988 | case NL80211_CHAN_NO_HT: | |
989 | case NL80211_CHAN_HT20: | |
7335613a | 990 | ctx->ht.is_40mhz = false; |
85220d71 JB |
991 | ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE; |
992 | break; | |
993 | case NL80211_CHAN_HT40MINUS: | |
994 | ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
995 | ctx->ht.is_40mhz = true; | |
996 | break; | |
997 | case NL80211_CHAN_HT40PLUS: | |
998 | ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
999 | ctx->ht.is_40mhz = true; | |
1000 | break; | |
1001 | } | |
7335613a WYG |
1002 | |
1003 | if ((le16_to_cpu(ctx->staging.channel) != ch)) | |
1004 | ctx->staging.flags = 0; | |
1005 | ||
1006 | iwl_set_rxon_channel(priv, channel, ctx); | |
1007 | iwl_set_rxon_ht(priv, ht_conf); | |
1008 | iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif); | |
1009 | ||
7335613a WYG |
1010 | /* |
1011 | * at this point, staging_rxon has the | |
1012 | * configuration for channel switch | |
1013 | */ | |
83626404 | 1014 | set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); |
7335613a | 1015 | priv->switch_channel = cpu_to_le16(ch); |
e9676695 | 1016 | if (priv->lib->set_channel_switch(priv, ch_switch)) { |
83626404 | 1017 | clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); |
7335613a WYG |
1018 | priv->switch_channel = 0; |
1019 | ieee80211_chswitch_done(ctx->vif, false); | |
1020 | } | |
1021 | ||
1022 | out: | |
b1eea297 | 1023 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1024 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1025 | } | |
1026 | ||
bedec3a6 MV |
1027 | void iwl_chswitch_done(struct iwl_priv *priv, bool is_success) |
1028 | { | |
1029 | /* | |
1030 | * MULTI-FIXME | |
1031 | * See iwlagn_mac_channel_switch. | |
1032 | */ | |
1033 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
1034 | ||
1035 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
1036 | return; | |
1037 | ||
9186a1fd SG |
1038 | if (!test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) |
1039 | return; | |
1040 | ||
1041 | if (ctx->vif) | |
bedec3a6 MV |
1042 | ieee80211_chswitch_done(ctx->vif, is_success); |
1043 | } | |
1044 | ||
aca86268 JB |
1045 | static void iwlagn_configure_filter(struct ieee80211_hw *hw, |
1046 | unsigned int changed_flags, | |
1047 | unsigned int *total_flags, | |
1048 | u64 multicast) | |
7335613a | 1049 | { |
d0f76d68 | 1050 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
1051 | __le32 filter_or = 0, filter_nand = 0; |
1052 | struct iwl_rxon_context *ctx; | |
1053 | ||
1054 | #define CHK(test, flag) do { \ | |
1055 | if (*total_flags & (test)) \ | |
1056 | filter_or |= (flag); \ | |
1057 | else \ | |
1058 | filter_nand |= (flag); \ | |
1059 | } while (0) | |
1060 | ||
1061 | IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", | |
1062 | changed_flags, *total_flags); | |
1063 | ||
1064 | CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); | |
1065 | /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */ | |
1066 | CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK); | |
1067 | CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); | |
1068 | ||
1069 | #undef CHK | |
1070 | ||
b1eea297 | 1071 | mutex_lock(&priv->mutex); |
7335613a WYG |
1072 | |
1073 | for_each_context(priv, ctx) { | |
1074 | ctx->staging.filter_flags &= ~filter_nand; | |
1075 | ctx->staging.filter_flags |= filter_or; | |
1076 | ||
1077 | /* | |
1078 | * Not committing directly because hardware can perform a scan, | |
1079 | * but we'll eventually commit the filter flags change anyway. | |
1080 | */ | |
1081 | } | |
1082 | ||
b1eea297 | 1083 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1084 | |
1085 | /* | |
1086 | * Receiving all multicast frames is always enabled by the | |
1087 | * default flags setup in iwl_connection_init_rx_config() | |
1088 | * since we currently do not support programming multicast | |
1089 | * filters into the device. | |
1090 | */ | |
1091 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | | |
1092 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; | |
1093 | } | |
1094 | ||
77be2c54 EG |
1095 | static void iwlagn_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
1096 | u32 queues, bool drop) | |
7335613a | 1097 | { |
d0f76d68 | 1098 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
a0855054 | 1099 | u32 scd_queues; |
7335613a | 1100 | |
b1eea297 | 1101 | mutex_lock(&priv->mutex); |
7335613a WYG |
1102 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
1103 | ||
83626404 | 1104 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
7335613a WYG |
1105 | IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n"); |
1106 | goto done; | |
1107 | } | |
83626404 | 1108 | if (iwl_is_rfkill(priv)) { |
7335613a WYG |
1109 | IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n"); |
1110 | goto done; | |
1111 | } | |
1112 | ||
a0855054 EG |
1113 | scd_queues = BIT(priv->cfg->base_params->num_of_queues) - 1; |
1114 | scd_queues &= ~(BIT(IWL_IPAN_CMD_QUEUE_NUM) | | |
1115 | BIT(IWL_DEFAULT_CMD_QUEUE_NUM)); | |
1116 | ||
1117 | if (vif) | |
1118 | scd_queues &= ~BIT(vif->hw_queue[IEEE80211_AC_VO]); | |
1119 | ||
1120 | IWL_DEBUG_TX_QUEUES(priv, "Flushing SCD queues: 0x%x\n", scd_queues); | |
1121 | if (iwlagn_txfifo_flush(priv, scd_queues)) { | |
1122 | IWL_ERR(priv, "flush request fail\n"); | |
1123 | goto done; | |
7335613a | 1124 | } |
a0855054 | 1125 | IWL_DEBUG_TX_QUEUES(priv, "wait transmit/flush all frames\n"); |
3cafdbe6 | 1126 | iwl_trans_wait_tx_queue_empty(priv->trans, 0xffffffff); |
7335613a | 1127 | done: |
b1eea297 | 1128 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1129 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1130 | } | |
1131 | ||
aca86268 | 1132 | static void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw, |
887da917 | 1133 | struct ieee80211_vif *vif, |
aca86268 | 1134 | enum ieee80211_rssi_event rssi_event) |
7335613a | 1135 | { |
d0f76d68 | 1136 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
1137 | |
1138 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 1139 | mutex_lock(&priv->mutex); |
7335613a | 1140 | |
0d8877a1 JB |
1141 | if (priv->lib->bt_params && |
1142 | priv->lib->bt_params->advanced_bt_coexist) { | |
7335613a WYG |
1143 | if (rssi_event == RSSI_EVENT_LOW) |
1144 | priv->bt_enable_pspoll = true; | |
1145 | else if (rssi_event == RSSI_EVENT_HIGH) | |
1146 | priv->bt_enable_pspoll = false; | |
1147 | ||
1148 | iwlagn_send_advance_bt_config(priv); | |
1149 | } else { | |
1150 | IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled," | |
1151 | "ignoring RSSI callback\n"); | |
1152 | } | |
1153 | ||
b1eea297 | 1154 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1155 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1156 | } | |
1157 | ||
aca86268 JB |
1158 | static int iwlagn_mac_set_tim(struct ieee80211_hw *hw, |
1159 | struct ieee80211_sta *sta, bool set) | |
7335613a | 1160 | { |
d0f76d68 | 1161 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 1162 | |
1ee158d8 | 1163 | queue_work(priv->workqueue, &priv->beacon_update); |
7335613a WYG |
1164 | |
1165 | return 0; | |
1166 | } | |
1167 | ||
aca86268 JB |
1168 | static int iwlagn_mac_conf_tx(struct ieee80211_hw *hw, |
1169 | struct ieee80211_vif *vif, u16 queue, | |
1170 | const struct ieee80211_tx_queue_params *params) | |
0b7a4c78 | 1171 | { |
d0f76d68 | 1172 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1173 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
1174 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
0b7a4c78 WYG |
1175 | int q; |
1176 | ||
1177 | if (WARN_ON(!ctx)) | |
1178 | return -EINVAL; | |
1179 | ||
1180 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1181 | ||
83626404 | 1182 | if (!iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1183 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
1184 | return -EIO; | |
1185 | } | |
1186 | ||
1187 | if (queue >= AC_NUM) { | |
1188 | IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); | |
1189 | return 0; | |
1190 | } | |
1191 | ||
1192 | q = AC_NUM - 1 - queue; | |
1193 | ||
b1eea297 | 1194 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1195 | |
1196 | ctx->qos_data.def_qos_parm.ac[q].cw_min = | |
1197 | cpu_to_le16(params->cw_min); | |
1198 | ctx->qos_data.def_qos_parm.ac[q].cw_max = | |
1199 | cpu_to_le16(params->cw_max); | |
1200 | ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
1201 | ctx->qos_data.def_qos_parm.ac[q].edca_txop = | |
1202 | cpu_to_le16((params->txop * 32)); | |
1203 | ||
1204 | ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
1205 | ||
b1eea297 | 1206 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1207 | |
1208 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1209 | return 0; | |
1210 | } | |
1211 | ||
aca86268 | 1212 | static int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw) |
0b7a4c78 | 1213 | { |
d0f76d68 | 1214 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1215 | |
1216 | return priv->ibss_manager == IWL_IBSS_MANAGER; | |
1217 | } | |
1218 | ||
1219 | static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx) | |
1220 | { | |
1221 | iwl_connection_init_rx_config(priv, ctx); | |
1222 | ||
1223 | iwlagn_set_rxon_chain(priv, ctx); | |
1224 | ||
1225 | return iwlagn_commit_rxon(priv, ctx); | |
1226 | } | |
1227 | ||
aca86268 JB |
1228 | static int iwl_setup_interface(struct iwl_priv *priv, |
1229 | struct iwl_rxon_context *ctx) | |
0b7a4c78 WYG |
1230 | { |
1231 | struct ieee80211_vif *vif = ctx->vif; | |
1479177b | 1232 | int err, ac; |
0b7a4c78 | 1233 | |
b1eea297 | 1234 | lockdep_assert_held(&priv->mutex); |
0b7a4c78 WYG |
1235 | |
1236 | /* | |
1237 | * This variable will be correct only when there's just | |
1238 | * a single context, but all code using it is for hardware | |
1239 | * that supports only one context. | |
1240 | */ | |
1241 | priv->iw_mode = vif->type; | |
1242 | ||
1243 | ctx->is_active = true; | |
1244 | ||
1245 | err = iwl_set_mode(priv, ctx); | |
1246 | if (err) { | |
1247 | if (!ctx->always_active) | |
1248 | ctx->is_active = false; | |
1249 | return err; | |
1250 | } | |
1251 | ||
0d8877a1 | 1252 | if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist && |
0b7a4c78 WYG |
1253 | vif->type == NL80211_IFTYPE_ADHOC) { |
1254 | /* | |
1255 | * pretend to have high BT traffic as long as we | |
1256 | * are operating in IBSS mode, as this will cause | |
1257 | * the rate scaling etc. to behave as intended. | |
1258 | */ | |
1259 | priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH; | |
1260 | } | |
1261 | ||
1479177b JB |
1262 | /* set up queue mappings */ |
1263 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
1264 | vif->hw_queue[ac] = ctx->ac_to_queue[ac]; | |
1265 | ||
1266 | if (vif->type == NL80211_IFTYPE_AP) | |
1267 | vif->cab_queue = ctx->mcast_queue; | |
1268 | else | |
1269 | vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; | |
1270 | ||
0b7a4c78 WYG |
1271 | return 0; |
1272 | } | |
1273 | ||
1274 | static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, | |
1479177b | 1275 | struct ieee80211_vif *vif) |
0b7a4c78 | 1276 | { |
d0f76d68 | 1277 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1278 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
1279 | struct iwl_rxon_context *tmp, *ctx = NULL; | |
1280 | int err; | |
1281 | enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif); | |
8db4c7e2 | 1282 | bool reset = false; |
0b7a4c78 WYG |
1283 | |
1284 | IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n", | |
1285 | viftype, vif->addr); | |
1286 | ||
b1eea297 | 1287 | mutex_lock(&priv->mutex); |
0b7a4c78 | 1288 | |
83626404 | 1289 | if (!iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1290 | IWL_WARN(priv, "Try to add interface when device not ready\n"); |
1291 | err = -EINVAL; | |
1292 | goto out; | |
1293 | } | |
1294 | ||
1295 | for_each_context(priv, tmp) { | |
1296 | u32 possible_modes = | |
1297 | tmp->interface_modes | tmp->exclusive_interface_modes; | |
1298 | ||
1299 | if (tmp->vif) { | |
8db4c7e2 SG |
1300 | /* On reset we need to add the same interface again */ |
1301 | if (tmp->vif == vif) { | |
1302 | reset = true; | |
1303 | ctx = tmp; | |
1304 | break; | |
1305 | } | |
1306 | ||
0b7a4c78 WYG |
1307 | /* check if this busy context is exclusive */ |
1308 | if (tmp->exclusive_interface_modes & | |
1309 | BIT(tmp->vif->type)) { | |
1310 | err = -EINVAL; | |
1311 | goto out; | |
1312 | } | |
1313 | continue; | |
1314 | } | |
1315 | ||
1316 | if (!(possible_modes & BIT(viftype))) | |
1317 | continue; | |
1318 | ||
1319 | /* have maybe usable context w/o interface */ | |
1320 | ctx = tmp; | |
1321 | break; | |
1322 | } | |
1323 | ||
1324 | if (!ctx) { | |
1325 | err = -EOPNOTSUPP; | |
1326 | goto out; | |
1327 | } | |
1328 | ||
1329 | vif_priv->ctx = ctx; | |
1330 | ctx->vif = vif; | |
1331 | ||
04baaa27 JB |
1332 | /* |
1333 | * In SNIFFER device type, the firmware reports the FCS to | |
1334 | * the host, rather than snipping it off. Unfortunately, | |
1335 | * mac80211 doesn't (yet) provide a per-packet flag for | |
1336 | * this, so that we have to set the hardware flag based | |
1337 | * on the interfaces added. As the monitor interface can | |
1338 | * only be present by itself, and will be removed before | |
1339 | * other interfaces are added, this is safe. | |
1340 | */ | |
1341 | if (vif->type == NL80211_IFTYPE_MONITOR) | |
1342 | priv->hw->flags |= IEEE80211_HW_RX_INCLUDES_FCS; | |
1343 | else | |
1344 | priv->hw->flags &= ~IEEE80211_HW_RX_INCLUDES_FCS; | |
1345 | ||
0b7a4c78 | 1346 | err = iwl_setup_interface(priv, ctx); |
8db4c7e2 | 1347 | if (!err || reset) |
0b7a4c78 WYG |
1348 | goto out; |
1349 | ||
1350 | ctx->vif = NULL; | |
1351 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
1352 | out: | |
b1eea297 | 1353 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1354 | |
1355 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1356 | return err; | |
1357 | } | |
1358 | ||
aca86268 JB |
1359 | static void iwl_teardown_interface(struct iwl_priv *priv, |
1360 | struct ieee80211_vif *vif, | |
1361 | bool mode_change) | |
0b7a4c78 WYG |
1362 | { |
1363 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); | |
1364 | ||
b1eea297 | 1365 | lockdep_assert_held(&priv->mutex); |
0b7a4c78 WYG |
1366 | |
1367 | if (priv->scan_vif == vif) { | |
1368 | iwl_scan_cancel_timeout(priv, 200); | |
1369 | iwl_force_scan_end(priv); | |
1370 | } | |
1371 | ||
1372 | if (!mode_change) { | |
1373 | iwl_set_mode(priv, ctx); | |
1374 | if (!ctx->always_active) | |
1375 | ctx->is_active = false; | |
1376 | } | |
1377 | ||
1378 | /* | |
1379 | * When removing the IBSS interface, overwrite the | |
1380 | * BT traffic load with the stored one from the last | |
1381 | * notification, if any. If this is a device that | |
1382 | * doesn't implement this, this has no effect since | |
1383 | * both values are the same and zero. | |
1384 | */ | |
1385 | if (vif->type == NL80211_IFTYPE_ADHOC) | |
1386 | priv->bt_traffic_load = priv->last_bt_traffic_load; | |
1387 | } | |
1388 | ||
1389 | static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw, | |
1390 | struct ieee80211_vif *vif) | |
1391 | { | |
d0f76d68 | 1392 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1393 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
1394 | ||
1395 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1396 | ||
b1eea297 | 1397 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1398 | |
1399 | if (WARN_ON(ctx->vif != vif)) { | |
1400 | struct iwl_rxon_context *tmp; | |
1401 | IWL_ERR(priv, "ctx->vif = %p, vif = %p\n", ctx->vif, vif); | |
1402 | for_each_context(priv, tmp) | |
1403 | IWL_ERR(priv, "\tID = %d:\tctx = %p\tctx->vif = %p\n", | |
1404 | tmp->ctxid, tmp, tmp->vif); | |
1405 | } | |
1406 | ctx->vif = NULL; | |
1407 | ||
1408 | iwl_teardown_interface(priv, vif, false); | |
1409 | ||
b1eea297 | 1410 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1411 | |
1412 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1413 | ||
1414 | } | |
1415 | ||
1416 | static int iwlagn_mac_change_interface(struct ieee80211_hw *hw, | |
e75dac92 JB |
1417 | struct ieee80211_vif *vif, |
1418 | enum nl80211_iftype newtype, bool newp2p) | |
0b7a4c78 | 1419 | { |
d0f76d68 | 1420 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
e75dac92 | 1421 | struct iwl_rxon_context *ctx, *tmp; |
0b7a4c78 WYG |
1422 | enum nl80211_iftype newviftype = newtype; |
1423 | u32 interface_modes; | |
1424 | int err; | |
1425 | ||
1426 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1427 | ||
1428 | newtype = ieee80211_iftype_p2p(newtype, newp2p); | |
1429 | ||
b1eea297 | 1430 | mutex_lock(&priv->mutex); |
0b7a4c78 | 1431 | |
e75dac92 JB |
1432 | ctx = iwl_rxon_ctx_from_vif(vif); |
1433 | ||
1434 | /* | |
1435 | * To simplify this code, only support changes on the | |
1436 | * BSS context. The PAN context is usually reassigned | |
1437 | * by creating/removing P2P interfaces anyway. | |
1438 | */ | |
1439 | if (ctx->ctxid != IWL_RXON_CTX_BSS) { | |
1440 | err = -EBUSY; | |
1441 | goto out; | |
1442 | } | |
1443 | ||
83626404 | 1444 | if (!ctx->vif || !iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1445 | /* |
1446 | * Huh? But wait ... this can maybe happen when | |
1447 | * we're in the middle of a firmware restart! | |
1448 | */ | |
1449 | err = -EBUSY; | |
1450 | goto out; | |
1451 | } | |
1452 | ||
e75dac92 | 1453 | /* Check if the switch is supported in the same context */ |
0b7a4c78 | 1454 | interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes; |
0b7a4c78 WYG |
1455 | if (!(interface_modes & BIT(newtype))) { |
1456 | err = -EBUSY; | |
1457 | goto out; | |
1458 | } | |
1459 | ||
0b7a4c78 WYG |
1460 | if (ctx->exclusive_interface_modes & BIT(newtype)) { |
1461 | for_each_context(priv, tmp) { | |
1462 | if (ctx == tmp) | |
1463 | continue; | |
1464 | ||
e75dac92 | 1465 | if (!tmp->is_active) |
0b7a4c78 WYG |
1466 | continue; |
1467 | ||
1468 | /* | |
1469 | * The current mode switch would be exclusive, but | |
1470 | * another context is active ... refuse the switch. | |
1471 | */ | |
1472 | err = -EBUSY; | |
1473 | goto out; | |
1474 | } | |
1475 | } | |
1476 | ||
1477 | /* success */ | |
1478 | iwl_teardown_interface(priv, vif, true); | |
1479 | vif->type = newviftype; | |
1480 | vif->p2p = newp2p; | |
1481 | err = iwl_setup_interface(priv, ctx); | |
1482 | WARN_ON(err); | |
1483 | /* | |
1484 | * We've switched internally, but submitting to the | |
1485 | * device may have failed for some reason. Mask this | |
1486 | * error, because otherwise mac80211 will not switch | |
1487 | * (and set the interface type back) and we'll be | |
1488 | * out of sync with it. | |
1489 | */ | |
1490 | err = 0; | |
1491 | ||
1492 | out: | |
b1eea297 | 1493 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1494 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1495 | ||
1496 | return err; | |
1497 | } | |
1498 | ||
aca86268 JB |
1499 | static int iwlagn_mac_hw_scan(struct ieee80211_hw *hw, |
1500 | struct ieee80211_vif *vif, | |
c56ef672 | 1501 | struct ieee80211_scan_request *hw_req) |
ba4c5319 | 1502 | { |
d0f76d68 | 1503 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
c56ef672 | 1504 | struct cfg80211_scan_request *req = &hw_req->req; |
ba4c5319 WYG |
1505 | int ret; |
1506 | ||
1507 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1508 | ||
1509 | if (req->n_channels == 0) | |
1510 | return -EINVAL; | |
1511 | ||
b1eea297 | 1512 | mutex_lock(&priv->mutex); |
ba4c5319 WYG |
1513 | |
1514 | /* | |
1515 | * If an internal scan is in progress, just set | |
1516 | * up the scan_request as per above. | |
1517 | */ | |
1518 | if (priv->scan_type != IWL_SCAN_NORMAL) { | |
1519 | IWL_DEBUG_SCAN(priv, | |
1520 | "SCAN request during internal scan - defer\n"); | |
1521 | priv->scan_request = req; | |
1522 | priv->scan_vif = vif; | |
1523 | ret = 0; | |
1524 | } else { | |
1525 | priv->scan_request = req; | |
1526 | priv->scan_vif = vif; | |
1527 | /* | |
1528 | * mac80211 will only ask for one band at a time | |
1529 | * so using channels[0] here is ok | |
1530 | */ | |
1531 | ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL, | |
1532 | req->channels[0]->band); | |
1533 | if (ret) { | |
1534 | priv->scan_request = NULL; | |
1535 | priv->scan_vif = NULL; | |
1536 | } | |
1537 | } | |
1538 | ||
1539 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1540 | ||
b1eea297 | 1541 | mutex_unlock(&priv->mutex); |
ba4c5319 WYG |
1542 | |
1543 | return ret; | |
1544 | } | |
1545 | ||
76b29331 WYG |
1546 | static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id) |
1547 | { | |
9451ca1a JB |
1548 | struct iwl_addsta_cmd cmd = { |
1549 | .mode = STA_CONTROL_MODIFY_MSK, | |
1550 | .station_flags_msk = STA_FLG_PWR_SAVE_MSK, | |
1551 | .sta.sta_id = sta_id, | |
1552 | }; | |
76b29331 | 1553 | |
9451ca1a | 1554 | iwl_send_add_sta(priv, &cmd, CMD_ASYNC); |
76b29331 WYG |
1555 | } |
1556 | ||
aca86268 JB |
1557 | static void iwlagn_mac_sta_notify(struct ieee80211_hw *hw, |
1558 | struct ieee80211_vif *vif, | |
1559 | enum sta_notify_cmd cmd, | |
1560 | struct ieee80211_sta *sta) | |
76b29331 | 1561 | { |
d0f76d68 | 1562 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
76b29331 WYG |
1563 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
1564 | int sta_id; | |
1565 | ||
1566 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1567 | ||
1568 | switch (cmd) { | |
1569 | case STA_NOTIFY_SLEEP: | |
1570 | WARN_ON(!sta_priv->client); | |
1571 | sta_priv->asleep = true; | |
1572 | if (atomic_read(&sta_priv->pending_frames) > 0) | |
1573 | ieee80211_sta_block_awake(hw, sta, true); | |
1574 | break; | |
1575 | case STA_NOTIFY_AWAKE: | |
1576 | WARN_ON(!sta_priv->client); | |
1577 | if (!sta_priv->asleep) | |
1578 | break; | |
1579 | sta_priv->asleep = false; | |
1580 | sta_id = iwl_sta_id(sta); | |
1581 | if (sta_id != IWL_INVALID_STATION) | |
1582 | iwl_sta_modify_ps_wake(priv, sta_id); | |
1583 | break; | |
1584 | default: | |
1585 | break; | |
1586 | } | |
1587 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1588 | } | |
1589 | ||
e5209263 | 1590 | const struct ieee80211_ops iwlagn_hw_ops = { |
7335613a WYG |
1591 | .tx = iwlagn_mac_tx, |
1592 | .start = iwlagn_mac_start, | |
1593 | .stop = iwlagn_mac_stop, | |
1594 | #ifdef CONFIG_PM_SLEEP | |
1595 | .suspend = iwlagn_mac_suspend, | |
1596 | .resume = iwlagn_mac_resume, | |
76ed2edd | 1597 | .set_wakeup = iwlagn_mac_set_wakeup, |
7335613a WYG |
1598 | #endif |
1599 | .add_interface = iwlagn_mac_add_interface, | |
1600 | .remove_interface = iwlagn_mac_remove_interface, | |
1601 | .change_interface = iwlagn_mac_change_interface, | |
1602 | .config = iwlagn_mac_config, | |
1603 | .configure_filter = iwlagn_configure_filter, | |
1604 | .set_key = iwlagn_mac_set_key, | |
1605 | .update_tkip_key = iwlagn_mac_update_tkip_key, | |
1606 | .set_rekey_data = iwlagn_mac_set_rekey_data, | |
1607 | .conf_tx = iwlagn_mac_conf_tx, | |
1608 | .bss_info_changed = iwlagn_bss_info_changed, | |
1609 | .ampdu_action = iwlagn_mac_ampdu_action, | |
1610 | .hw_scan = iwlagn_mac_hw_scan, | |
1611 | .sta_notify = iwlagn_mac_sta_notify, | |
fb5fe5b9 | 1612 | .sta_state = iwlagn_mac_sta_state, |
7335613a WYG |
1613 | .channel_switch = iwlagn_mac_channel_switch, |
1614 | .flush = iwlagn_mac_flush, | |
1615 | .tx_last_beacon = iwlagn_mac_tx_last_beacon, | |
7335613a | 1616 | .rssi_callback = iwlagn_mac_rssi_callback, |
7335613a WYG |
1617 | .set_tim = iwlagn_mac_set_tim, |
1618 | }; | |
1619 | ||
1620 | /* This function both allocates and initializes hw and priv. */ | |
1621 | struct ieee80211_hw *iwl_alloc_all(void) | |
1622 | { | |
1623 | struct iwl_priv *priv; | |
d0f76d68 | 1624 | struct iwl_op_mode *op_mode; |
7335613a WYG |
1625 | /* mac80211 allocates memory for this device instance, including |
1626 | * space for this driver's private structure */ | |
1627 | struct ieee80211_hw *hw; | |
1628 | ||
d0f76d68 EG |
1629 | hw = ieee80211_alloc_hw(sizeof(struct iwl_priv) + |
1630 | sizeof(struct iwl_op_mode), &iwlagn_hw_ops); | |
7335613a WYG |
1631 | if (!hw) |
1632 | goto out; | |
1633 | ||
d0f76d68 EG |
1634 | op_mode = hw->priv; |
1635 | priv = IWL_OP_MODE_GET_DVM(op_mode); | |
7335613a WYG |
1636 | priv->hw = hw; |
1637 | ||
1638 | out: | |
1639 | return hw; | |
1640 | } |