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7335613a WYG |
1 | /****************************************************************************** |
2 | * | |
4e318262 | 3 | * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved. |
7335613a WYG |
4 | * |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
25 | * Intel Linux Wireless <ilw@linux.intel.com> | |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
27 | * | |
28 | *****************************************************************************/ | |
29 | #include <linux/kernel.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/init.h> | |
32 | #include <linux/slab.h> | |
33 | #include <linux/dma-mapping.h> | |
34 | #include <linux/delay.h> | |
35 | #include <linux/sched.h> | |
36 | #include <linux/skbuff.h> | |
37 | #include <linux/netdevice.h> | |
7335613a WYG |
38 | #include <linux/etherdevice.h> |
39 | #include <linux/if_arp.h> | |
40 | ||
41 | #include <net/mac80211.h> | |
42 | ||
43 | #include <asm/div64.h> | |
44 | ||
45 | #include "iwl-eeprom.h" | |
46 | #include "iwl-dev.h" | |
7335613a WYG |
47 | #include "iwl-io.h" |
48 | #include "iwl-agn-calib.h" | |
49 | #include "iwl-agn.h" | |
7335613a | 50 | #include "iwl-trans.h" |
d0f76d68 | 51 | #include "iwl-op-mode.h" |
65de7e84 | 52 | #include "iwl-modparams.h" |
7335613a WYG |
53 | |
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 | ||
78 | static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = { | |
79 | { | |
80 | .max = 1, | |
81 | .types = BIT(NL80211_IFTYPE_STATION), | |
82 | }, | |
83 | { | |
84 | .max = 1, | |
85 | .types = BIT(NL80211_IFTYPE_P2P_GO) | | |
86 | BIT(NL80211_IFTYPE_AP), | |
87 | }, | |
88 | }; | |
89 | ||
90 | static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = { | |
91 | { | |
92 | .max = 2, | |
93 | .types = BIT(NL80211_IFTYPE_STATION), | |
94 | }, | |
95 | { | |
96 | .max = 1, | |
97 | .types = BIT(NL80211_IFTYPE_P2P_CLIENT), | |
98 | }, | |
99 | }; | |
100 | ||
101 | static const struct ieee80211_iface_combination | |
102 | iwlagn_iface_combinations_dualmode[] = { | |
103 | { .num_different_channels = 1, | |
104 | .max_interfaces = 2, | |
105 | .beacon_int_infra_match = true, | |
106 | .limits = iwlagn_sta_ap_limits, | |
107 | .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits), | |
108 | }, | |
109 | { .num_different_channels = 1, | |
110 | .max_interfaces = 2, | |
111 | .limits = iwlagn_2sta_limits, | |
112 | .n_limits = ARRAY_SIZE(iwlagn_2sta_limits), | |
113 | }, | |
114 | }; | |
115 | ||
116 | static const struct ieee80211_iface_combination | |
117 | iwlagn_iface_combinations_p2p[] = { | |
118 | { .num_different_channels = 1, | |
119 | .max_interfaces = 2, | |
120 | .beacon_int_infra_match = true, | |
121 | .limits = iwlagn_p2p_sta_go_limits, | |
122 | .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits), | |
123 | }, | |
124 | { .num_different_channels = 1, | |
125 | .max_interfaces = 2, | |
126 | .limits = iwlagn_p2p_2sta_limits, | |
127 | .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits), | |
128 | }, | |
129 | }; | |
130 | ||
131 | /* | |
132 | * Not a mac80211 entry point function, but it fits in with all the | |
133 | * other mac80211 functions grouped here. | |
134 | */ | |
135 | int iwlagn_mac_setup_register(struct iwl_priv *priv, | |
0692fe41 | 136 | const struct iwl_ucode_capabilities *capa) |
7335613a WYG |
137 | { |
138 | int ret; | |
139 | struct ieee80211_hw *hw = priv->hw; | |
140 | struct iwl_rxon_context *ctx; | |
141 | ||
142 | hw->rate_control_algorithm = "iwl-agn-rs"; | |
143 | ||
144 | /* Tell mac80211 our characteristics */ | |
145 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
146 | IEEE80211_HW_AMPDU_AGGREGATION | | |
147 | IEEE80211_HW_NEED_DTIM_PERIOD | | |
148 | IEEE80211_HW_SPECTRUM_MGMT | | |
1479177b JB |
149 | IEEE80211_HW_REPORTS_TX_ACK_STATUS | |
150 | IEEE80211_HW_QUEUE_CONTROL | | |
151 | IEEE80211_HW_SUPPORTS_PS | | |
152 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS | | |
57897726 | 153 | IEEE80211_HW_WANT_MONITOR_VIF | |
1479177b JB |
154 | IEEE80211_HW_SCAN_WHILE_IDLE; |
155 | ||
156 | hw->offchannel_tx_hw_queue = IWL_AUX_QUEUE; | |
7335613a WYG |
157 | |
158 | /* | |
159 | * Including the following line will crash some AP's. This | |
160 | * workaround removes the stimulus which causes the crash until | |
161 | * the AP software can be fixed. | |
162 | hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF; | |
163 | */ | |
164 | ||
9e295116 | 165 | if (priv->hw_params.sku & EEPROM_SKU_CAP_11N_ENABLE) |
7335613a WYG |
166 | hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | |
167 | IEEE80211_HW_SUPPORTS_STATIC_SMPS; | |
168 | ||
18c57d3c DS |
169 | #ifndef CONFIG_IWLWIFI_EXPERIMENTAL_MFP |
170 | /* enable 11w if the uCode advertise */ | |
7335613a | 171 | if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP) |
18c57d3c | 172 | #endif /* !CONFIG_IWLWIFI_EXPERIMENTAL_MFP */ |
7335613a WYG |
173 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; |
174 | ||
175 | hw->sta_data_size = sizeof(struct iwl_station_priv); | |
176 | hw->vif_data_size = sizeof(struct iwl_vif_priv); | |
177 | ||
178 | for_each_context(priv, ctx) { | |
179 | hw->wiphy->interface_modes |= ctx->interface_modes; | |
180 | hw->wiphy->interface_modes |= ctx->exclusive_interface_modes; | |
181 | } | |
182 | ||
183 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
184 | ||
185 | if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) { | |
186 | hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p; | |
187 | hw->wiphy->n_iface_combinations = | |
188 | ARRAY_SIZE(iwlagn_iface_combinations_p2p); | |
189 | } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { | |
190 | hw->wiphy->iface_combinations = | |
191 | iwlagn_iface_combinations_dualmode; | |
192 | hw->wiphy->n_iface_combinations = | |
193 | ARRAY_SIZE(iwlagn_iface_combinations_dualmode); | |
194 | } | |
195 | ||
196 | hw->wiphy->max_remain_on_channel_duration = 1000; | |
197 | ||
198 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | | |
199 | WIPHY_FLAG_DISABLE_BEACON_HINTS | | |
200 | WIPHY_FLAG_IBSS_RSN; | |
201 | ||
6dfa8d01 | 202 | if (priv->fw->img[IWL_UCODE_WOWLAN].sec[0].len && |
68e8dfda EG |
203 | priv->trans->ops->wowlan_suspend && |
204 | device_can_wakeup(priv->trans->dev)) { | |
7335613a WYG |
205 | hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | |
206 | WIPHY_WOWLAN_DISCONNECT | | |
207 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
208 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
65de7e84 | 209 | if (!iwlwifi_mod_params.sw_crypto) |
7335613a WYG |
210 | hw->wiphy->wowlan.flags |= |
211 | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | | |
212 | WIPHY_WOWLAN_GTK_REKEY_FAILURE; | |
213 | ||
214 | hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS; | |
215 | hw->wiphy->wowlan.pattern_min_len = | |
216 | IWLAGN_WOWLAN_MIN_PATTERN_LEN; | |
217 | hw->wiphy->wowlan.pattern_max_len = | |
218 | IWLAGN_WOWLAN_MAX_PATTERN_LEN; | |
219 | } | |
220 | ||
65de7e84 | 221 | if (iwlwifi_mod_params.power_save) |
7335613a WYG |
222 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
223 | else | |
224 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
225 | ||
226 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; | |
4f9bfbb1 DS |
227 | /* we create the 802.11 header and a max-length SSID element */ |
228 | hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 34; | |
7335613a | 229 | |
1479177b JB |
230 | /* |
231 | * We don't use all queues: 4 and 9 are unused and any | |
232 | * aggregation queue gets mapped down to the AC queue. | |
233 | */ | |
234 | hw->queues = IWLAGN_FIRST_AMPDU_QUEUE; | |
7335613a WYG |
235 | |
236 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; | |
237 | ||
238 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) | |
239 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
240 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
241 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) | |
242 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
243 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
244 | ||
68e8dfda | 245 | hw->wiphy->hw_version = priv->trans->hw_id; |
0ba958eb | 246 | |
7335613a WYG |
247 | iwl_leds_init(priv); |
248 | ||
249 | ret = ieee80211_register_hw(priv->hw); | |
250 | if (ret) { | |
251 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); | |
252 | return ret; | |
253 | } | |
254 | priv->mac80211_registered = 1; | |
255 | ||
256 | return 0; | |
257 | } | |
258 | ||
09af1403 DF |
259 | void iwlagn_mac_unregister(struct iwl_priv *priv) |
260 | { | |
261 | if (!priv->mac80211_registered) | |
262 | return; | |
263 | iwl_leds_exit(priv); | |
264 | ieee80211_unregister_hw(priv->hw); | |
265 | priv->mac80211_registered = 0; | |
266 | } | |
267 | ||
7335613a WYG |
268 | static int __iwl_up(struct iwl_priv *priv) |
269 | { | |
270 | struct iwl_rxon_context *ctx; | |
271 | int ret; | |
272 | ||
b1eea297 | 273 | lockdep_assert_held(&priv->mutex); |
7335613a | 274 | |
83626404 | 275 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
7335613a WYG |
276 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
277 | return -EIO; | |
278 | } | |
279 | ||
280 | for_each_context(priv, ctx) { | |
281 | ret = iwlagn_alloc_bcast_station(priv, ctx); | |
282 | if (ret) { | |
283 | iwl_dealloc_bcast_stations(priv); | |
284 | return ret; | |
285 | } | |
286 | } | |
287 | ||
e1991885 | 288 | ret = iwl_run_init_ucode(priv); |
7335613a WYG |
289 | if (ret) { |
290 | IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret); | |
291 | goto error; | |
292 | } | |
293 | ||
e1991885 | 294 | ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR); |
7335613a WYG |
295 | if (ret) { |
296 | IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret); | |
297 | goto error; | |
298 | } | |
299 | ||
300 | ret = iwl_alive_start(priv); | |
301 | if (ret) | |
302 | goto error; | |
303 | return 0; | |
304 | ||
305 | error: | |
83626404 | 306 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
78e5a464 | 307 | iwl_down(priv); |
83626404 | 308 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
7335613a WYG |
309 | |
310 | IWL_ERR(priv, "Unable to initialize device.\n"); | |
311 | return ret; | |
312 | } | |
313 | ||
314 | static int iwlagn_mac_start(struct ieee80211_hw *hw) | |
315 | { | |
d0f76d68 | 316 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
317 | int ret; |
318 | ||
319 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
320 | ||
321 | /* we should be verifying the device is ready to be opened */ | |
b1eea297 | 322 | mutex_lock(&priv->mutex); |
7335613a | 323 | ret = __iwl_up(priv); |
b1eea297 | 324 | mutex_unlock(&priv->mutex); |
7335613a WYG |
325 | if (ret) |
326 | return ret; | |
327 | ||
328 | IWL_DEBUG_INFO(priv, "Start UP work done.\n"); | |
329 | ||
330 | /* Now we should be done, and the READY bit should be set. */ | |
83626404 | 331 | if (WARN_ON(!test_bit(STATUS_READY, &priv->status))) |
7335613a WYG |
332 | ret = -EIO; |
333 | ||
334 | iwlagn_led_enable(priv); | |
335 | ||
336 | priv->is_open = 1; | |
337 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
338 | return 0; | |
339 | } | |
340 | ||
50c1e9a9 | 341 | void iwlagn_mac_stop(struct ieee80211_hw *hw) |
7335613a | 342 | { |
d0f76d68 | 343 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
344 | |
345 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
346 | ||
347 | if (!priv->is_open) | |
348 | return; | |
349 | ||
350 | priv->is_open = 0; | |
351 | ||
b1eea297 | 352 | mutex_lock(&priv->mutex); |
7335613a | 353 | iwl_down(priv); |
b1eea297 | 354 | mutex_unlock(&priv->mutex); |
78e5a464 EG |
355 | |
356 | iwl_cancel_deferred_work(priv); | |
7335613a | 357 | |
1ee158d8 | 358 | flush_workqueue(priv->workqueue); |
7335613a WYG |
359 | |
360 | /* User space software may expect getting rfkill changes | |
1df06bdc EG |
361 | * even if interface is down, trans->down will leave the RF |
362 | * kill interrupt enabled | |
363 | */ | |
218733cf | 364 | iwl_trans_stop_hw(priv->trans, false); |
7335613a WYG |
365 | |
366 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
367 | } | |
368 | ||
50c1e9a9 DS |
369 | void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw, |
370 | struct ieee80211_vif *vif, | |
371 | struct cfg80211_gtk_rekey_data *data) | |
7335613a | 372 | { |
d0f76d68 | 373 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 374 | |
65de7e84 | 375 | if (iwlwifi_mod_params.sw_crypto) |
7335613a WYG |
376 | return; |
377 | ||
378 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 379 | mutex_lock(&priv->mutex); |
7335613a WYG |
380 | |
381 | if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif) | |
382 | goto out; | |
383 | ||
384 | memcpy(priv->kek, data->kek, NL80211_KEK_LEN); | |
385 | memcpy(priv->kck, data->kck, NL80211_KCK_LEN); | |
386 | priv->replay_ctr = | |
387 | cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); | |
388 | priv->have_rekey_data = true; | |
389 | ||
390 | out: | |
b1eea297 | 391 | mutex_unlock(&priv->mutex); |
7335613a WYG |
392 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
393 | } | |
394 | ||
395 | #ifdef CONFIG_PM_SLEEP | |
7335613a | 396 | |
50c1e9a9 | 397 | int iwlagn_mac_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) |
7335613a | 398 | { |
d0f76d68 | 399 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 400 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
023ca58f | 401 | int ret; |
7335613a WYG |
402 | |
403 | if (WARN_ON(!wowlan)) | |
404 | return -EINVAL; | |
405 | ||
406 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 407 | mutex_lock(&priv->mutex); |
7335613a WYG |
408 | |
409 | /* Don't attempt WoWLAN when not associated, tear down instead. */ | |
410 | if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION || | |
411 | !iwl_is_associated_ctx(ctx)) { | |
412 | ret = 1; | |
413 | goto out; | |
414 | } | |
415 | ||
ea886a60 | 416 | ret = iwlagn_suspend(priv, wowlan); |
7335613a WYG |
417 | if (ret) |
418 | goto error; | |
419 | ||
68e8dfda | 420 | device_set_wakeup_enable(priv->trans->dev, true); |
7335613a | 421 | |
68e8dfda | 422 | iwl_trans_wowlan_suspend(priv->trans); |
7335613a WYG |
423 | |
424 | goto out; | |
425 | ||
426 | error: | |
15b86bff | 427 | priv->wowlan = false; |
7335613a WYG |
428 | iwlagn_prepare_restart(priv); |
429 | ieee80211_restart_hw(priv->hw); | |
430 | out: | |
b1eea297 | 431 | mutex_unlock(&priv->mutex); |
7335613a WYG |
432 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
433 | ||
434 | return ret; | |
435 | } | |
436 | ||
437 | static int iwlagn_mac_resume(struct ieee80211_hw *hw) | |
438 | { | |
d0f76d68 | 439 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
440 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
441 | struct ieee80211_vif *vif; | |
442 | unsigned long flags; | |
443 | u32 base, status = 0xffffffff; | |
444 | int ret = -EIO; | |
445 | ||
446 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 447 | mutex_lock(&priv->mutex); |
7335613a | 448 | |
68e8dfda | 449 | iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR, |
7335613a WYG |
450 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); |
451 | ||
2fdfc476 | 452 | base = priv->device_pointers.error_event_table; |
7335613a | 453 | if (iwlagn_hw_valid_rtc_data_addr(base)) { |
68e8dfda EG |
454 | spin_lock_irqsave(&priv->trans->reg_lock, flags); |
455 | ret = iwl_grab_nic_access_silent(priv->trans); | |
bfe4b80e | 456 | if (likely(ret == 0)) { |
68e8dfda EG |
457 | iwl_write32(priv->trans, HBUS_TARG_MEM_RADDR, base); |
458 | status = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT); | |
459 | iwl_release_nic_access(priv->trans); | |
7335613a | 460 | } |
68e8dfda | 461 | spin_unlock_irqrestore(&priv->trans->reg_lock, flags); |
7335613a WYG |
462 | |
463 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
464 | if (ret == 0) { | |
a855f7ee OH |
465 | const struct fw_img *img; |
466 | ||
6dfa8d01 DS |
467 | img = &(priv->fw->img[IWL_UCODE_WOWLAN]); |
468 | if (!priv->wowlan_sram) { | |
7335613a | 469 | priv->wowlan_sram = |
6dfa8d01 | 470 | kzalloc(img->sec[IWL_UCODE_SECTION_DATA].len, |
7335613a | 471 | GFP_KERNEL); |
6dfa8d01 | 472 | } |
7335613a WYG |
473 | |
474 | if (priv->wowlan_sram) | |
475 | _iwl_read_targ_mem_words( | |
68e8dfda | 476 | priv->trans, 0x800000, |
6dfa8d01 DS |
477 | priv->wowlan_sram, |
478 | img->sec[IWL_UCODE_SECTION_DATA].len / 4); | |
7335613a WYG |
479 | } |
480 | #endif | |
481 | } | |
482 | ||
483 | /* we'll clear ctx->vif during iwlagn_prepare_restart() */ | |
484 | vif = ctx->vif; | |
485 | ||
15b86bff | 486 | priv->wowlan = false; |
7335613a | 487 | |
68e8dfda | 488 | device_set_wakeup_enable(priv->trans->dev, false); |
7335613a WYG |
489 | |
490 | iwlagn_prepare_restart(priv); | |
491 | ||
492 | memset((void *)&ctx->active, 0, sizeof(ctx->active)); | |
493 | iwl_connection_init_rx_config(priv, ctx); | |
494 | iwlagn_set_rxon_chain(priv, ctx); | |
495 | ||
b1eea297 | 496 | mutex_unlock(&priv->mutex); |
7335613a WYG |
497 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
498 | ||
499 | ieee80211_resume_disconnect(vif); | |
500 | ||
501 | return 1; | |
502 | } | |
503 | ||
504 | #endif | |
505 | ||
50c1e9a9 | 506 | void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
7335613a | 507 | { |
d0f76d68 | 508 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 509 | |
7335613a WYG |
510 | IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
511 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); | |
512 | ||
513 | if (iwlagn_tx_skb(priv, skb)) | |
514 | dev_kfree_skb_any(skb); | |
7335613a WYG |
515 | } |
516 | ||
50c1e9a9 DS |
517 | void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw, |
518 | struct ieee80211_vif *vif, | |
519 | struct ieee80211_key_conf *keyconf, | |
520 | struct ieee80211_sta *sta, | |
521 | u32 iv32, u16 *phase1key) | |
7335613a | 522 | { |
d0f76d68 | 523 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
524 | |
525 | iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key); | |
526 | } | |
527 | ||
50c1e9a9 DS |
528 | int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
529 | struct ieee80211_vif *vif, | |
530 | struct ieee80211_sta *sta, | |
531 | struct ieee80211_key_conf *key) | |
7335613a | 532 | { |
d0f76d68 | 533 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
534 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
535 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
536 | int ret; | |
537 | bool is_default_wep_key = false; | |
538 | ||
539 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
540 | ||
65de7e84 | 541 | if (iwlwifi_mod_params.sw_crypto) { |
7335613a WYG |
542 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); |
543 | return -EOPNOTSUPP; | |
544 | } | |
545 | ||
a7e12c8e JB |
546 | switch (key->cipher) { |
547 | case WLAN_CIPHER_SUITE_TKIP: | |
548 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
549 | /* fall through */ | |
550 | case WLAN_CIPHER_SUITE_CCMP: | |
551 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
552 | break; | |
553 | default: | |
554 | break; | |
555 | } | |
556 | ||
7335613a WYG |
557 | /* |
558 | * We could program these keys into the hardware as well, but we | |
559 | * don't expect much multicast traffic in IBSS and having keys | |
560 | * for more stations is probably more useful. | |
561 | * | |
562 | * Mark key TX-only and return 0. | |
563 | */ | |
564 | if (vif->type == NL80211_IFTYPE_ADHOC && | |
565 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { | |
566 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
567 | return 0; | |
568 | } | |
569 | ||
570 | /* If they key was TX-only, accept deletion */ | |
571 | if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET) | |
572 | return 0; | |
573 | ||
b1eea297 | 574 | mutex_lock(&priv->mutex); |
7335613a WYG |
575 | iwl_scan_cancel_timeout(priv, 100); |
576 | ||
577 | BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT); | |
578 | ||
579 | /* | |
580 | * If we are getting WEP group key and we didn't receive any key mapping | |
581 | * so far, we are in legacy wep mode (group key only), otherwise we are | |
582 | * in 1X mode. | |
583 | * In legacy wep mode, we use another host command to the uCode. | |
584 | */ | |
585 | if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || | |
586 | key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) { | |
587 | if (cmd == SET_KEY) | |
588 | is_default_wep_key = !ctx->key_mapping_keys; | |
589 | else | |
590 | is_default_wep_key = | |
591 | key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT; | |
592 | } | |
593 | ||
594 | ||
595 | switch (cmd) { | |
596 | case SET_KEY: | |
597 | if (is_default_wep_key) { | |
598 | ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key); | |
599 | break; | |
600 | } | |
601 | ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta); | |
602 | if (ret) { | |
603 | /* | |
604 | * can't add key for RX, but we don't need it | |
605 | * in the device for TX so still return 0 | |
606 | */ | |
607 | ret = 0; | |
608 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
609 | } | |
610 | ||
611 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); | |
612 | break; | |
613 | case DISABLE_KEY: | |
614 | if (is_default_wep_key) | |
615 | ret = iwl_remove_default_wep_key(priv, ctx, key); | |
616 | else | |
617 | ret = iwl_remove_dynamic_key(priv, ctx, key, sta); | |
618 | ||
619 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); | |
620 | break; | |
621 | default: | |
622 | ret = -EINVAL; | |
623 | } | |
624 | ||
b1eea297 | 625 | mutex_unlock(&priv->mutex); |
7335613a WYG |
626 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
627 | ||
628 | return ret; | |
629 | } | |
630 | ||
50c1e9a9 DS |
631 | int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, |
632 | struct ieee80211_vif *vif, | |
633 | enum ieee80211_ampdu_mlme_action action, | |
634 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, | |
635 | u8 buf_size) | |
7335613a | 636 | { |
d0f76d68 | 637 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
638 | int ret = -EINVAL; |
639 | struct iwl_station_priv *sta_priv = (void *) sta->drv_priv; | |
7335613a WYG |
640 | |
641 | IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", | |
642 | sta->addr, tid); | |
643 | ||
9e295116 | 644 | if (!(priv->hw_params.sku & EEPROM_SKU_CAP_11N_ENABLE)) |
7335613a WYG |
645 | return -EACCES; |
646 | ||
647 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 648 | mutex_lock(&priv->mutex); |
7335613a WYG |
649 | |
650 | switch (action) { | |
651 | case IEEE80211_AMPDU_RX_START: | |
65de7e84 | 652 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) |
7428994d | 653 | break; |
7335613a WYG |
654 | IWL_DEBUG_HT(priv, "start Rx\n"); |
655 | ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn); | |
656 | break; | |
657 | case IEEE80211_AMPDU_RX_STOP: | |
658 | IWL_DEBUG_HT(priv, "stop Rx\n"); | |
659 | ret = iwl_sta_rx_agg_stop(priv, sta, tid); | |
7335613a WYG |
660 | break; |
661 | case IEEE80211_AMPDU_TX_START: | |
68e8dfda | 662 | if (!priv->trans->ops->tx_agg_setup) |
9eae88fa | 663 | break; |
65de7e84 | 664 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) |
7428994d | 665 | break; |
7335613a WYG |
666 | IWL_DEBUG_HT(priv, "start Tx\n"); |
667 | ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn); | |
668 | break; | |
669 | case IEEE80211_AMPDU_TX_STOP: | |
670 | IWL_DEBUG_HT(priv, "stop Tx\n"); | |
671 | ret = iwlagn_tx_agg_stop(priv, vif, sta, tid); | |
672 | if ((ret == 0) && (priv->agg_tids_count > 0)) { | |
673 | priv->agg_tids_count--; | |
674 | IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", | |
675 | priv->agg_tids_count); | |
676 | } | |
b9ad70da | 677 | if (!priv->agg_tids_count && |
9e295116 | 678 | priv->hw_params.use_rts_for_aggregation) { |
7335613a WYG |
679 | /* |
680 | * switch off RTS/CTS if it was previously enabled | |
681 | */ | |
682 | sta_priv->lq_sta.lq.general_params.flags &= | |
683 | ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; | |
684 | iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), | |
685 | &sta_priv->lq_sta.lq, CMD_ASYNC, false); | |
686 | } | |
687 | break; | |
688 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
822e8b2a | 689 | ret = iwlagn_tx_agg_oper(priv, vif, sta, tid, buf_size); |
7335613a WYG |
690 | break; |
691 | } | |
b1eea297 | 692 | mutex_unlock(&priv->mutex); |
7335613a WYG |
693 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
694 | return ret; | |
695 | } | |
696 | ||
697 | static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, | |
698 | struct ieee80211_vif *vif, | |
699 | struct ieee80211_sta *sta) | |
700 | { | |
d0f76d68 | 701 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
702 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
703 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
704 | bool is_ap = vif->type == NL80211_IFTYPE_STATION; | |
fb5fe5b9 | 705 | int ret; |
7335613a WYG |
706 | u8 sta_id; |
707 | ||
7335613a WYG |
708 | IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", |
709 | sta->addr); | |
710 | sta_priv->sta_id = IWL_INVALID_STATION; | |
711 | ||
712 | atomic_set(&sta_priv->pending_frames, 0); | |
713 | if (vif->type == NL80211_IFTYPE_AP) | |
714 | sta_priv->client = true; | |
715 | ||
716 | ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr, | |
717 | is_ap, sta, &sta_id); | |
718 | if (ret) { | |
719 | IWL_ERR(priv, "Unable to add station %pM (%d)\n", | |
720 | sta->addr, ret); | |
721 | /* Should we return success if return code is EEXIST ? */ | |
fb5fe5b9 | 722 | return ret; |
7335613a WYG |
723 | } |
724 | ||
725 | sta_priv->sta_id = sta_id; | |
726 | ||
fb5fe5b9 JB |
727 | return 0; |
728 | } | |
729 | ||
730 | static int iwlagn_mac_sta_remove(struct ieee80211_hw *hw, | |
731 | struct ieee80211_vif *vif, | |
732 | struct ieee80211_sta *sta) | |
733 | { | |
734 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
735 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
736 | int ret; | |
737 | ||
97420515 JB |
738 | IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", sta->addr); |
739 | ||
740 | if (vif->type == NL80211_IFTYPE_STATION) { | |
741 | /* | |
742 | * Station will be removed from device when the RXON | |
743 | * is set to unassociated -- just deactivate it here | |
744 | * to avoid re-programming it. | |
745 | */ | |
746 | ret = 0; | |
747 | iwl_deactivate_station(priv, sta_priv->sta_id, sta->addr); | |
748 | } else { | |
749 | ret = iwl_remove_station(priv, sta_priv->sta_id, sta->addr); | |
750 | if (ret) | |
751 | IWL_DEBUG_QUIET_RFKILL(priv, | |
752 | "Error removing station %pM\n", sta->addr); | |
753 | } | |
fb5fe5b9 JB |
754 | return ret; |
755 | } | |
756 | ||
50c1e9a9 DS |
757 | int iwlagn_mac_sta_state(struct ieee80211_hw *hw, |
758 | struct ieee80211_vif *vif, | |
759 | struct ieee80211_sta *sta, | |
760 | enum ieee80211_sta_state old_state, | |
761 | enum ieee80211_sta_state new_state) | |
fb5fe5b9 JB |
762 | { |
763 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
ab0bd5b3 | 764 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
fb5fe5b9 | 765 | enum { |
ab0bd5b3 | 766 | NONE, ADD, REMOVE, HT_RATE_INIT, ADD_RATE_INIT, |
fb5fe5b9 JB |
767 | } op = NONE; |
768 | int ret; | |
769 | ||
770 | IWL_DEBUG_MAC80211(priv, "station %pM state change %d->%d\n", | |
771 | sta->addr, old_state, new_state); | |
772 | ||
b1eea297 | 773 | mutex_lock(&priv->mutex); |
fb5fe5b9 JB |
774 | if (vif->type == NL80211_IFTYPE_STATION) { |
775 | if (old_state == IEEE80211_STA_NOTEXIST && | |
776 | new_state == IEEE80211_STA_NONE) | |
777 | op = ADD; | |
778 | else if (old_state == IEEE80211_STA_NONE && | |
779 | new_state == IEEE80211_STA_NOTEXIST) | |
780 | op = REMOVE; | |
781 | else if (old_state == IEEE80211_STA_AUTH && | |
782 | new_state == IEEE80211_STA_ASSOC) | |
ab0bd5b3 | 783 | op = HT_RATE_INIT; |
fb5fe5b9 JB |
784 | } else { |
785 | if (old_state == IEEE80211_STA_AUTH && | |
786 | new_state == IEEE80211_STA_ASSOC) | |
787 | op = ADD_RATE_INIT; | |
788 | else if (old_state == IEEE80211_STA_ASSOC && | |
789 | new_state == IEEE80211_STA_AUTH) | |
790 | op = REMOVE; | |
791 | } | |
792 | ||
793 | switch (op) { | |
794 | case ADD: | |
795 | ret = iwlagn_mac_sta_add(hw, vif, sta); | |
796 | break; | |
797 | case REMOVE: | |
798 | ret = iwlagn_mac_sta_remove(hw, vif, sta); | |
799 | break; | |
800 | case ADD_RATE_INIT: | |
801 | ret = iwlagn_mac_sta_add(hw, vif, sta); | |
802 | if (ret) | |
803 | break; | |
fb5fe5b9 JB |
804 | /* Initialize rate scaling */ |
805 | IWL_DEBUG_INFO(priv, | |
806 | "Initializing rate scaling for station %pM\n", | |
807 | sta->addr); | |
808 | iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); | |
809 | ret = 0; | |
810 | break; | |
ab0bd5b3 JB |
811 | case HT_RATE_INIT: |
812 | /* Initialize rate scaling */ | |
813 | ret = iwl_sta_update_ht(priv, vif_priv->ctx, sta); | |
814 | if (ret) | |
815 | break; | |
816 | IWL_DEBUG_INFO(priv, | |
817 | "Initializing rate scaling for station %pM\n", | |
818 | sta->addr); | |
819 | iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); | |
820 | ret = 0; | |
821 | break; | |
fb5fe5b9 JB |
822 | default: |
823 | ret = 0; | |
824 | break; | |
825 | } | |
826 | ||
827 | /* | |
828 | * mac80211 might WARN if we fail, but due the way we | |
829 | * (badly) handle hard rfkill, we might fail here | |
830 | */ | |
83626404 | 831 | if (iwl_is_rfkill(priv)) |
fb5fe5b9 JB |
832 | ret = 0; |
833 | ||
b1eea297 | 834 | mutex_unlock(&priv->mutex); |
7335613a WYG |
835 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
836 | ||
837 | return ret; | |
838 | } | |
839 | ||
50c1e9a9 DS |
840 | void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, |
841 | struct ieee80211_channel_switch *ch_switch) | |
7335613a | 842 | { |
d0f76d68 | 843 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
844 | const struct iwl_channel_info *ch_info; |
845 | struct ieee80211_conf *conf = &hw->conf; | |
846 | struct ieee80211_channel *channel = ch_switch->channel; | |
847 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; | |
848 | /* | |
849 | * MULTI-FIXME | |
850 | * When we add support for multiple interfaces, we need to | |
851 | * revisit this. The channel switch command in the device | |
852 | * only affects the BSS context, but what does that really | |
853 | * mean? And what if we get a CSA on the second interface? | |
854 | * This needs a lot of work. | |
855 | */ | |
856 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
857 | u16 ch; | |
858 | ||
859 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
860 | ||
b1eea297 | 861 | mutex_lock(&priv->mutex); |
7335613a | 862 | |
83626404 | 863 | if (iwl_is_rfkill(priv)) |
7335613a WYG |
864 | goto out; |
865 | ||
83626404 DF |
866 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || |
867 | test_bit(STATUS_SCANNING, &priv->status) || | |
868 | test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) | |
7335613a WYG |
869 | goto out; |
870 | ||
871 | if (!iwl_is_associated_ctx(ctx)) | |
872 | goto out; | |
873 | ||
e9676695 | 874 | if (!priv->lib->set_channel_switch) |
7335613a WYG |
875 | goto out; |
876 | ||
877 | ch = channel->hw_value; | |
878 | if (le16_to_cpu(ctx->active.channel) == ch) | |
879 | goto out; | |
880 | ||
881 | ch_info = iwl_get_channel_info(priv, channel->band, ch); | |
882 | if (!is_channel_valid(ch_info)) { | |
883 | IWL_DEBUG_MAC80211(priv, "invalid channel\n"); | |
884 | goto out; | |
885 | } | |
886 | ||
7335613a WYG |
887 | priv->current_ht_config.smps = conf->smps_mode; |
888 | ||
889 | /* Configure HT40 channels */ | |
890 | ctx->ht.enabled = conf_is_ht(conf); | |
137ce797 WYG |
891 | if (ctx->ht.enabled) |
892 | iwlagn_config_ht40(conf, ctx); | |
893 | else | |
7335613a WYG |
894 | ctx->ht.is_40mhz = false; |
895 | ||
896 | if ((le16_to_cpu(ctx->staging.channel) != ch)) | |
897 | ctx->staging.flags = 0; | |
898 | ||
899 | iwl_set_rxon_channel(priv, channel, ctx); | |
900 | iwl_set_rxon_ht(priv, ht_conf); | |
901 | iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif); | |
902 | ||
7335613a WYG |
903 | /* |
904 | * at this point, staging_rxon has the | |
905 | * configuration for channel switch | |
906 | */ | |
83626404 | 907 | set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); |
7335613a | 908 | priv->switch_channel = cpu_to_le16(ch); |
e9676695 | 909 | if (priv->lib->set_channel_switch(priv, ch_switch)) { |
83626404 | 910 | clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); |
7335613a WYG |
911 | priv->switch_channel = 0; |
912 | ieee80211_chswitch_done(ctx->vif, false); | |
913 | } | |
914 | ||
915 | out: | |
b1eea297 | 916 | mutex_unlock(&priv->mutex); |
7335613a WYG |
917 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
918 | } | |
919 | ||
bedec3a6 MV |
920 | void iwl_chswitch_done(struct iwl_priv *priv, bool is_success) |
921 | { | |
922 | /* | |
923 | * MULTI-FIXME | |
924 | * See iwlagn_mac_channel_switch. | |
925 | */ | |
926 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
927 | ||
928 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
929 | return; | |
930 | ||
931 | if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) | |
932 | ieee80211_chswitch_done(ctx->vif, is_success); | |
933 | } | |
934 | ||
50c1e9a9 DS |
935 | void iwlagn_configure_filter(struct ieee80211_hw *hw, |
936 | unsigned int changed_flags, | |
937 | unsigned int *total_flags, | |
938 | u64 multicast) | |
7335613a | 939 | { |
d0f76d68 | 940 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
941 | __le32 filter_or = 0, filter_nand = 0; |
942 | struct iwl_rxon_context *ctx; | |
943 | ||
944 | #define CHK(test, flag) do { \ | |
945 | if (*total_flags & (test)) \ | |
946 | filter_or |= (flag); \ | |
947 | else \ | |
948 | filter_nand |= (flag); \ | |
949 | } while (0) | |
950 | ||
951 | IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", | |
952 | changed_flags, *total_flags); | |
953 | ||
954 | CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); | |
955 | /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */ | |
956 | CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK); | |
957 | CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); | |
958 | ||
959 | #undef CHK | |
960 | ||
b1eea297 | 961 | mutex_lock(&priv->mutex); |
7335613a WYG |
962 | |
963 | for_each_context(priv, ctx) { | |
964 | ctx->staging.filter_flags &= ~filter_nand; | |
965 | ctx->staging.filter_flags |= filter_or; | |
966 | ||
967 | /* | |
968 | * Not committing directly because hardware can perform a scan, | |
969 | * but we'll eventually commit the filter flags change anyway. | |
970 | */ | |
971 | } | |
972 | ||
b1eea297 | 973 | mutex_unlock(&priv->mutex); |
7335613a WYG |
974 | |
975 | /* | |
976 | * Receiving all multicast frames is always enabled by the | |
977 | * default flags setup in iwl_connection_init_rx_config() | |
978 | * since we currently do not support programming multicast | |
979 | * filters into the device. | |
980 | */ | |
981 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | | |
982 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; | |
983 | } | |
984 | ||
50c1e9a9 | 985 | void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop) |
7335613a | 986 | { |
d0f76d68 | 987 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 988 | |
b1eea297 | 989 | mutex_lock(&priv->mutex); |
7335613a WYG |
990 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
991 | ||
83626404 | 992 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
7335613a WYG |
993 | IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n"); |
994 | goto done; | |
995 | } | |
83626404 | 996 | if (iwl_is_rfkill(priv)) { |
7335613a WYG |
997 | IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n"); |
998 | goto done; | |
999 | } | |
1000 | ||
1001 | /* | |
1002 | * mac80211 will not push any more frames for transmit | |
1003 | * until the flush is completed | |
1004 | */ | |
1005 | if (drop) { | |
1006 | IWL_DEBUG_MAC80211(priv, "send flush command\n"); | |
1007 | if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) { | |
1008 | IWL_ERR(priv, "flush request fail\n"); | |
1009 | goto done; | |
1010 | } | |
1011 | } | |
1012 | IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n"); | |
68e8dfda | 1013 | iwl_trans_wait_tx_queue_empty(priv->trans); |
7335613a | 1014 | done: |
b1eea297 | 1015 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1016 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1017 | } | |
1018 | ||
1019 | static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw, | |
1020 | struct ieee80211_channel *channel, | |
1021 | enum nl80211_channel_type channel_type, | |
1022 | int duration) | |
1023 | { | |
d0f76d68 | 1024 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
1025 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN]; |
1026 | int err = 0; | |
1027 | ||
a18f61bc | 1028 | if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) |
7335613a WYG |
1029 | return -EOPNOTSUPP; |
1030 | ||
1031 | if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT))) | |
1032 | return -EOPNOTSUPP; | |
1033 | ||
1034 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 1035 | mutex_lock(&priv->mutex); |
7335613a | 1036 | |
83626404 | 1037 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { |
7335613a WYG |
1038 | err = -EBUSY; |
1039 | goto out; | |
1040 | } | |
1041 | ||
1042 | priv->hw_roc_channel = channel; | |
1043 | priv->hw_roc_chantype = channel_type; | |
3ddf6bef JB |
1044 | /* convert from ms to TU */ |
1045 | priv->hw_roc_duration = DIV_ROUND_UP(1000 * duration, 1024); | |
7335613a WYG |
1046 | priv->hw_roc_start_notified = false; |
1047 | cancel_delayed_work(&priv->hw_roc_disable_work); | |
1048 | ||
1049 | if (!ctx->is_active) { | |
a69cd040 JB |
1050 | static const struct iwl_qos_info default_qos_data = { |
1051 | .def_qos_parm = { | |
1052 | .ac[0] = { | |
1053 | .cw_min = cpu_to_le16(3), | |
1054 | .cw_max = cpu_to_le16(7), | |
1055 | .aifsn = 2, | |
1056 | .edca_txop = cpu_to_le16(1504), | |
1057 | }, | |
1058 | .ac[1] = { | |
1059 | .cw_min = cpu_to_le16(7), | |
1060 | .cw_max = cpu_to_le16(15), | |
1061 | .aifsn = 2, | |
1062 | .edca_txop = cpu_to_le16(3008), | |
1063 | }, | |
1064 | .ac[2] = { | |
1065 | .cw_min = cpu_to_le16(15), | |
1066 | .cw_max = cpu_to_le16(1023), | |
1067 | .aifsn = 3, | |
1068 | }, | |
1069 | .ac[3] = { | |
1070 | .cw_min = cpu_to_le16(15), | |
1071 | .cw_max = cpu_to_le16(1023), | |
1072 | .aifsn = 7, | |
1073 | }, | |
1074 | }, | |
1075 | }; | |
1076 | ||
7335613a | 1077 | ctx->is_active = true; |
a69cd040 | 1078 | ctx->qos_data = default_qos_data; |
7335613a WYG |
1079 | ctx->staging.dev_type = RXON_DEV_TYPE_P2P; |
1080 | memcpy(ctx->staging.node_addr, | |
1081 | priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, | |
1082 | ETH_ALEN); | |
1083 | memcpy(ctx->staging.bssid_addr, | |
1084 | priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, | |
1085 | ETH_ALEN); | |
1086 | err = iwlagn_commit_rxon(priv, ctx); | |
1087 | if (err) | |
1088 | goto out; | |
1089 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK | | |
1090 | RXON_FILTER_PROMISC_MSK | | |
1091 | RXON_FILTER_CTL2HOST_MSK; | |
1092 | ||
1093 | err = iwlagn_commit_rxon(priv, ctx); | |
1094 | if (err) { | |
1095 | iwlagn_disable_roc(priv); | |
1096 | goto out; | |
1097 | } | |
1098 | priv->hw_roc_setup = true; | |
1099 | } | |
1100 | ||
1101 | err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band); | |
1102 | if (err) | |
1103 | iwlagn_disable_roc(priv); | |
1104 | ||
1105 | out: | |
b1eea297 | 1106 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1107 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1108 | ||
1109 | return err; | |
1110 | } | |
1111 | ||
50c1e9a9 | 1112 | int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw *hw) |
7335613a | 1113 | { |
d0f76d68 | 1114 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 1115 | |
a18f61bc | 1116 | if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) |
7335613a WYG |
1117 | return -EOPNOTSUPP; |
1118 | ||
1119 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 1120 | mutex_lock(&priv->mutex); |
7335613a WYG |
1121 | iwl_scan_cancel_timeout(priv, priv->hw_roc_duration); |
1122 | iwlagn_disable_roc(priv); | |
b1eea297 | 1123 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1124 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1125 | ||
1126 | return 0; | |
1127 | } | |
1128 | ||
50c1e9a9 DS |
1129 | void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw, |
1130 | enum ieee80211_rssi_event rssi_event) | |
7335613a | 1131 | { |
d0f76d68 | 1132 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
1133 | |
1134 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 1135 | mutex_lock(&priv->mutex); |
7335613a | 1136 | |
2152268f EG |
1137 | if (priv->cfg->bt_params && |
1138 | priv->cfg->bt_params->advanced_bt_coexist) { | |
7335613a WYG |
1139 | if (rssi_event == RSSI_EVENT_LOW) |
1140 | priv->bt_enable_pspoll = true; | |
1141 | else if (rssi_event == RSSI_EVENT_HIGH) | |
1142 | priv->bt_enable_pspoll = false; | |
1143 | ||
1144 | iwlagn_send_advance_bt_config(priv); | |
1145 | } else { | |
1146 | IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled," | |
1147 | "ignoring RSSI callback\n"); | |
1148 | } | |
1149 | ||
b1eea297 | 1150 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1151 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1152 | } | |
1153 | ||
50c1e9a9 DS |
1154 | int iwlagn_mac_set_tim(struct ieee80211_hw *hw, |
1155 | struct ieee80211_sta *sta, bool set) | |
7335613a | 1156 | { |
d0f76d68 | 1157 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 1158 | |
1ee158d8 | 1159 | queue_work(priv->workqueue, &priv->beacon_update); |
7335613a WYG |
1160 | |
1161 | return 0; | |
1162 | } | |
1163 | ||
50c1e9a9 DS |
1164 | int iwlagn_mac_conf_tx(struct ieee80211_hw *hw, |
1165 | struct ieee80211_vif *vif, u16 queue, | |
1166 | const struct ieee80211_tx_queue_params *params) | |
0b7a4c78 | 1167 | { |
d0f76d68 | 1168 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1169 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
1170 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
0b7a4c78 WYG |
1171 | int q; |
1172 | ||
1173 | if (WARN_ON(!ctx)) | |
1174 | return -EINVAL; | |
1175 | ||
1176 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1177 | ||
83626404 | 1178 | if (!iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1179 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
1180 | return -EIO; | |
1181 | } | |
1182 | ||
1183 | if (queue >= AC_NUM) { | |
1184 | IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); | |
1185 | return 0; | |
1186 | } | |
1187 | ||
1188 | q = AC_NUM - 1 - queue; | |
1189 | ||
b1eea297 | 1190 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1191 | |
1192 | ctx->qos_data.def_qos_parm.ac[q].cw_min = | |
1193 | cpu_to_le16(params->cw_min); | |
1194 | ctx->qos_data.def_qos_parm.ac[q].cw_max = | |
1195 | cpu_to_le16(params->cw_max); | |
1196 | ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
1197 | ctx->qos_data.def_qos_parm.ac[q].edca_txop = | |
1198 | cpu_to_le16((params->txop * 32)); | |
1199 | ||
1200 | ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
1201 | ||
b1eea297 | 1202 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1203 | |
1204 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1205 | return 0; | |
1206 | } | |
1207 | ||
50c1e9a9 | 1208 | int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw) |
0b7a4c78 | 1209 | { |
d0f76d68 | 1210 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1211 | |
1212 | return priv->ibss_manager == IWL_IBSS_MANAGER; | |
1213 | } | |
1214 | ||
1215 | static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx) | |
1216 | { | |
1217 | iwl_connection_init_rx_config(priv, ctx); | |
1218 | ||
1219 | iwlagn_set_rxon_chain(priv, ctx); | |
1220 | ||
1221 | return iwlagn_commit_rxon(priv, ctx); | |
1222 | } | |
1223 | ||
50c1e9a9 | 1224 | int iwl_setup_interface(struct iwl_priv *priv, struct iwl_rxon_context *ctx) |
0b7a4c78 WYG |
1225 | { |
1226 | struct ieee80211_vif *vif = ctx->vif; | |
1479177b | 1227 | int err, ac; |
0b7a4c78 | 1228 | |
b1eea297 | 1229 | lockdep_assert_held(&priv->mutex); |
0b7a4c78 WYG |
1230 | |
1231 | /* | |
1232 | * This variable will be correct only when there's just | |
1233 | * a single context, but all code using it is for hardware | |
1234 | * that supports only one context. | |
1235 | */ | |
1236 | priv->iw_mode = vif->type; | |
1237 | ||
1238 | ctx->is_active = true; | |
1239 | ||
1240 | err = iwl_set_mode(priv, ctx); | |
1241 | if (err) { | |
1242 | if (!ctx->always_active) | |
1243 | ctx->is_active = false; | |
1244 | return err; | |
1245 | } | |
1246 | ||
2152268f | 1247 | if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist && |
0b7a4c78 WYG |
1248 | vif->type == NL80211_IFTYPE_ADHOC) { |
1249 | /* | |
1250 | * pretend to have high BT traffic as long as we | |
1251 | * are operating in IBSS mode, as this will cause | |
1252 | * the rate scaling etc. to behave as intended. | |
1253 | */ | |
1254 | priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH; | |
1255 | } | |
1256 | ||
1479177b JB |
1257 | /* set up queue mappings */ |
1258 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
1259 | vif->hw_queue[ac] = ctx->ac_to_queue[ac]; | |
1260 | ||
1261 | if (vif->type == NL80211_IFTYPE_AP) | |
1262 | vif->cab_queue = ctx->mcast_queue; | |
1263 | else | |
1264 | vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; | |
1265 | ||
0b7a4c78 WYG |
1266 | return 0; |
1267 | } | |
1268 | ||
1269 | static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, | |
1479177b | 1270 | struct ieee80211_vif *vif) |
0b7a4c78 | 1271 | { |
d0f76d68 | 1272 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1273 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
1274 | struct iwl_rxon_context *tmp, *ctx = NULL; | |
1275 | int err; | |
1276 | enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif); | |
8db4c7e2 | 1277 | bool reset = false; |
0b7a4c78 WYG |
1278 | |
1279 | IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n", | |
1280 | viftype, vif->addr); | |
1281 | ||
1282 | cancel_delayed_work_sync(&priv->hw_roc_disable_work); | |
1283 | ||
b1eea297 | 1284 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1285 | |
1286 | iwlagn_disable_roc(priv); | |
1287 | ||
83626404 | 1288 | if (!iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1289 | IWL_WARN(priv, "Try to add interface when device not ready\n"); |
1290 | err = -EINVAL; | |
1291 | goto out; | |
1292 | } | |
1293 | ||
1294 | for_each_context(priv, tmp) { | |
1295 | u32 possible_modes = | |
1296 | tmp->interface_modes | tmp->exclusive_interface_modes; | |
1297 | ||
1298 | if (tmp->vif) { | |
8db4c7e2 SG |
1299 | /* On reset we need to add the same interface again */ |
1300 | if (tmp->vif == vif) { | |
1301 | reset = true; | |
1302 | ctx = tmp; | |
1303 | break; | |
1304 | } | |
1305 | ||
0b7a4c78 WYG |
1306 | /* check if this busy context is exclusive */ |
1307 | if (tmp->exclusive_interface_modes & | |
1308 | BIT(tmp->vif->type)) { | |
1309 | err = -EINVAL; | |
1310 | goto out; | |
1311 | } | |
1312 | continue; | |
1313 | } | |
1314 | ||
1315 | if (!(possible_modes & BIT(viftype))) | |
1316 | continue; | |
1317 | ||
1318 | /* have maybe usable context w/o interface */ | |
1319 | ctx = tmp; | |
1320 | break; | |
1321 | } | |
1322 | ||
1323 | if (!ctx) { | |
1324 | err = -EOPNOTSUPP; | |
1325 | goto out; | |
1326 | } | |
1327 | ||
1328 | vif_priv->ctx = ctx; | |
1329 | ctx->vif = vif; | |
1330 | ||
1331 | err = iwl_setup_interface(priv, ctx); | |
8db4c7e2 | 1332 | if (!err || reset) |
0b7a4c78 WYG |
1333 | goto out; |
1334 | ||
1335 | ctx->vif = NULL; | |
1336 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
1337 | out: | |
b1eea297 | 1338 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1339 | |
1340 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1341 | return err; | |
1342 | } | |
1343 | ||
50c1e9a9 DS |
1344 | void iwl_teardown_interface(struct iwl_priv *priv, |
1345 | struct ieee80211_vif *vif, | |
1346 | bool mode_change) | |
0b7a4c78 WYG |
1347 | { |
1348 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); | |
1349 | ||
b1eea297 | 1350 | lockdep_assert_held(&priv->mutex); |
0b7a4c78 WYG |
1351 | |
1352 | if (priv->scan_vif == vif) { | |
1353 | iwl_scan_cancel_timeout(priv, 200); | |
1354 | iwl_force_scan_end(priv); | |
1355 | } | |
1356 | ||
1357 | if (!mode_change) { | |
1358 | iwl_set_mode(priv, ctx); | |
1359 | if (!ctx->always_active) | |
1360 | ctx->is_active = false; | |
1361 | } | |
1362 | ||
1363 | /* | |
1364 | * When removing the IBSS interface, overwrite the | |
1365 | * BT traffic load with the stored one from the last | |
1366 | * notification, if any. If this is a device that | |
1367 | * doesn't implement this, this has no effect since | |
1368 | * both values are the same and zero. | |
1369 | */ | |
1370 | if (vif->type == NL80211_IFTYPE_ADHOC) | |
1371 | priv->bt_traffic_load = priv->last_bt_traffic_load; | |
1372 | } | |
1373 | ||
1374 | static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw, | |
1375 | struct ieee80211_vif *vif) | |
1376 | { | |
d0f76d68 | 1377 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1378 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
1379 | ||
1380 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1381 | ||
b1eea297 | 1382 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1383 | |
1384 | if (WARN_ON(ctx->vif != vif)) { | |
1385 | struct iwl_rxon_context *tmp; | |
1386 | IWL_ERR(priv, "ctx->vif = %p, vif = %p\n", ctx->vif, vif); | |
1387 | for_each_context(priv, tmp) | |
1388 | IWL_ERR(priv, "\tID = %d:\tctx = %p\tctx->vif = %p\n", | |
1389 | tmp->ctxid, tmp, tmp->vif); | |
1390 | } | |
1391 | ctx->vif = NULL; | |
1392 | ||
1393 | iwl_teardown_interface(priv, vif, false); | |
1394 | ||
b1eea297 | 1395 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1396 | |
1397 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1398 | ||
1399 | } | |
1400 | ||
1401 | static int iwlagn_mac_change_interface(struct ieee80211_hw *hw, | |
1402 | struct ieee80211_vif *vif, | |
1403 | enum nl80211_iftype newtype, bool newp2p) | |
1404 | { | |
d0f76d68 | 1405 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1406 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
1407 | struct iwl_rxon_context *bss_ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
1408 | struct iwl_rxon_context *tmp; | |
1409 | enum nl80211_iftype newviftype = newtype; | |
1410 | u32 interface_modes; | |
1411 | int err; | |
1412 | ||
1413 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1414 | ||
1415 | newtype = ieee80211_iftype_p2p(newtype, newp2p); | |
1416 | ||
b1eea297 | 1417 | mutex_lock(&priv->mutex); |
0b7a4c78 | 1418 | |
83626404 | 1419 | if (!ctx->vif || !iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1420 | /* |
1421 | * Huh? But wait ... this can maybe happen when | |
1422 | * we're in the middle of a firmware restart! | |
1423 | */ | |
1424 | err = -EBUSY; | |
1425 | goto out; | |
1426 | } | |
1427 | ||
1428 | interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes; | |
1429 | ||
1430 | if (!(interface_modes & BIT(newtype))) { | |
1431 | err = -EBUSY; | |
1432 | goto out; | |
1433 | } | |
1434 | ||
1435 | /* | |
1436 | * Refuse a change that should be done by moving from the PAN | |
1437 | * context to the BSS context instead, if the BSS context is | |
1438 | * available and can support the new interface type. | |
1439 | */ | |
1440 | if (ctx->ctxid == IWL_RXON_CTX_PAN && !bss_ctx->vif && | |
1441 | (bss_ctx->interface_modes & BIT(newtype) || | |
1442 | bss_ctx->exclusive_interface_modes & BIT(newtype))) { | |
1443 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
1444 | err = -EBUSY; | |
1445 | goto out; | |
1446 | } | |
1447 | ||
1448 | if (ctx->exclusive_interface_modes & BIT(newtype)) { | |
1449 | for_each_context(priv, tmp) { | |
1450 | if (ctx == tmp) | |
1451 | continue; | |
1452 | ||
1453 | if (!tmp->vif) | |
1454 | continue; | |
1455 | ||
1456 | /* | |
1457 | * The current mode switch would be exclusive, but | |
1458 | * another context is active ... refuse the switch. | |
1459 | */ | |
1460 | err = -EBUSY; | |
1461 | goto out; | |
1462 | } | |
1463 | } | |
1464 | ||
1465 | /* success */ | |
1466 | iwl_teardown_interface(priv, vif, true); | |
1467 | vif->type = newviftype; | |
1468 | vif->p2p = newp2p; | |
1469 | err = iwl_setup_interface(priv, ctx); | |
1470 | WARN_ON(err); | |
1471 | /* | |
1472 | * We've switched internally, but submitting to the | |
1473 | * device may have failed for some reason. Mask this | |
1474 | * error, because otherwise mac80211 will not switch | |
1475 | * (and set the interface type back) and we'll be | |
1476 | * out of sync with it. | |
1477 | */ | |
1478 | err = 0; | |
1479 | ||
1480 | out: | |
b1eea297 | 1481 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1482 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1483 | ||
1484 | return err; | |
1485 | } | |
1486 | ||
50c1e9a9 DS |
1487 | int iwlagn_mac_hw_scan(struct ieee80211_hw *hw, |
1488 | struct ieee80211_vif *vif, | |
1489 | struct cfg80211_scan_request *req) | |
ba4c5319 | 1490 | { |
d0f76d68 | 1491 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
ba4c5319 WYG |
1492 | int ret; |
1493 | ||
1494 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1495 | ||
1496 | if (req->n_channels == 0) | |
1497 | return -EINVAL; | |
1498 | ||
b1eea297 | 1499 | mutex_lock(&priv->mutex); |
ba4c5319 WYG |
1500 | |
1501 | /* | |
1502 | * If an internal scan is in progress, just set | |
1503 | * up the scan_request as per above. | |
1504 | */ | |
1505 | if (priv->scan_type != IWL_SCAN_NORMAL) { | |
1506 | IWL_DEBUG_SCAN(priv, | |
1507 | "SCAN request during internal scan - defer\n"); | |
1508 | priv->scan_request = req; | |
1509 | priv->scan_vif = vif; | |
1510 | ret = 0; | |
1511 | } else { | |
1512 | priv->scan_request = req; | |
1513 | priv->scan_vif = vif; | |
1514 | /* | |
1515 | * mac80211 will only ask for one band at a time | |
1516 | * so using channels[0] here is ok | |
1517 | */ | |
1518 | ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL, | |
1519 | req->channels[0]->band); | |
1520 | if (ret) { | |
1521 | priv->scan_request = NULL; | |
1522 | priv->scan_vif = NULL; | |
1523 | } | |
1524 | } | |
1525 | ||
1526 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1527 | ||
b1eea297 | 1528 | mutex_unlock(&priv->mutex); |
ba4c5319 WYG |
1529 | |
1530 | return ret; | |
1531 | } | |
1532 | ||
76b29331 WYG |
1533 | static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id) |
1534 | { | |
9451ca1a JB |
1535 | struct iwl_addsta_cmd cmd = { |
1536 | .mode = STA_CONTROL_MODIFY_MSK, | |
1537 | .station_flags_msk = STA_FLG_PWR_SAVE_MSK, | |
1538 | .sta.sta_id = sta_id, | |
1539 | }; | |
76b29331 | 1540 | |
9451ca1a | 1541 | iwl_send_add_sta(priv, &cmd, CMD_ASYNC); |
76b29331 WYG |
1542 | } |
1543 | ||
50c1e9a9 | 1544 | void iwlagn_mac_sta_notify(struct ieee80211_hw *hw, |
76b29331 WYG |
1545 | struct ieee80211_vif *vif, |
1546 | enum sta_notify_cmd cmd, | |
1547 | struct ieee80211_sta *sta) | |
1548 | { | |
d0f76d68 | 1549 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
76b29331 WYG |
1550 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
1551 | int sta_id; | |
1552 | ||
1553 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1554 | ||
1555 | switch (cmd) { | |
1556 | case STA_NOTIFY_SLEEP: | |
1557 | WARN_ON(!sta_priv->client); | |
1558 | sta_priv->asleep = true; | |
1559 | if (atomic_read(&sta_priv->pending_frames) > 0) | |
1560 | ieee80211_sta_block_awake(hw, sta, true); | |
1561 | break; | |
1562 | case STA_NOTIFY_AWAKE: | |
1563 | WARN_ON(!sta_priv->client); | |
1564 | if (!sta_priv->asleep) | |
1565 | break; | |
1566 | sta_priv->asleep = false; | |
1567 | sta_id = iwl_sta_id(sta); | |
1568 | if (sta_id != IWL_INVALID_STATION) | |
1569 | iwl_sta_modify_ps_wake(priv, sta_id); | |
1570 | break; | |
1571 | default: | |
1572 | break; | |
1573 | } | |
1574 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1575 | } | |
1576 | ||
7335613a WYG |
1577 | struct ieee80211_ops iwlagn_hw_ops = { |
1578 | .tx = iwlagn_mac_tx, | |
1579 | .start = iwlagn_mac_start, | |
1580 | .stop = iwlagn_mac_stop, | |
1581 | #ifdef CONFIG_PM_SLEEP | |
1582 | .suspend = iwlagn_mac_suspend, | |
1583 | .resume = iwlagn_mac_resume, | |
1584 | #endif | |
1585 | .add_interface = iwlagn_mac_add_interface, | |
1586 | .remove_interface = iwlagn_mac_remove_interface, | |
1587 | .change_interface = iwlagn_mac_change_interface, | |
1588 | .config = iwlagn_mac_config, | |
1589 | .configure_filter = iwlagn_configure_filter, | |
1590 | .set_key = iwlagn_mac_set_key, | |
1591 | .update_tkip_key = iwlagn_mac_update_tkip_key, | |
1592 | .set_rekey_data = iwlagn_mac_set_rekey_data, | |
1593 | .conf_tx = iwlagn_mac_conf_tx, | |
1594 | .bss_info_changed = iwlagn_bss_info_changed, | |
1595 | .ampdu_action = iwlagn_mac_ampdu_action, | |
1596 | .hw_scan = iwlagn_mac_hw_scan, | |
1597 | .sta_notify = iwlagn_mac_sta_notify, | |
fb5fe5b9 | 1598 | .sta_state = iwlagn_mac_sta_state, |
7335613a WYG |
1599 | .channel_switch = iwlagn_mac_channel_switch, |
1600 | .flush = iwlagn_mac_flush, | |
1601 | .tx_last_beacon = iwlagn_mac_tx_last_beacon, | |
1602 | .remain_on_channel = iwlagn_mac_remain_on_channel, | |
1603 | .cancel_remain_on_channel = iwlagn_mac_cancel_remain_on_channel, | |
1604 | .rssi_callback = iwlagn_mac_rssi_callback, | |
1605 | CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd) | |
1606 | CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump) | |
7335613a WYG |
1607 | .set_tim = iwlagn_mac_set_tim, |
1608 | }; | |
1609 | ||
1610 | /* This function both allocates and initializes hw and priv. */ | |
1611 | struct ieee80211_hw *iwl_alloc_all(void) | |
1612 | { | |
1613 | struct iwl_priv *priv; | |
d0f76d68 | 1614 | struct iwl_op_mode *op_mode; |
7335613a WYG |
1615 | /* mac80211 allocates memory for this device instance, including |
1616 | * space for this driver's private structure */ | |
1617 | struct ieee80211_hw *hw; | |
1618 | ||
d0f76d68 EG |
1619 | hw = ieee80211_alloc_hw(sizeof(struct iwl_priv) + |
1620 | sizeof(struct iwl_op_mode), &iwlagn_hw_ops); | |
7335613a WYG |
1621 | if (!hw) |
1622 | goto out; | |
1623 | ||
d0f76d68 EG |
1624 | op_mode = hw->priv; |
1625 | priv = IWL_OP_MODE_GET_DVM(op_mode); | |
7335613a WYG |
1626 | priv->hw = hw; |
1627 | ||
1628 | out: | |
1629 | return hw; | |
1630 | } |