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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> | |
38 | #include <linux/firmware.h> | |
39 | #include <linux/etherdevice.h> | |
40 | #include <linux/if_arp.h> | |
41 | ||
42 | #include <net/mac80211.h> | |
43 | ||
44 | #include <asm/div64.h> | |
45 | ||
46 | #include "iwl-eeprom.h" | |
69a679b0 | 47 | #include "iwl-wifi.h" |
7335613a WYG |
48 | #include "iwl-dev.h" |
49 | #include "iwl-core.h" | |
50 | #include "iwl-io.h" | |
51 | #include "iwl-agn-calib.h" | |
52 | #include "iwl-agn.h" | |
53 | #include "iwl-shared.h" | |
54 | #include "iwl-bus.h" | |
55 | #include "iwl-trans.h" | |
56 | ||
57 | /***************************************************************************** | |
58 | * | |
59 | * mac80211 entry point functions | |
60 | * | |
61 | *****************************************************************************/ | |
62 | ||
63 | static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = { | |
64 | { | |
65 | .max = 1, | |
66 | .types = BIT(NL80211_IFTYPE_STATION), | |
67 | }, | |
68 | { | |
69 | .max = 1, | |
70 | .types = BIT(NL80211_IFTYPE_AP), | |
71 | }, | |
72 | }; | |
73 | ||
74 | static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = { | |
75 | { | |
76 | .max = 2, | |
77 | .types = BIT(NL80211_IFTYPE_STATION), | |
78 | }, | |
79 | }; | |
80 | ||
81 | static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = { | |
82 | { | |
83 | .max = 1, | |
84 | .types = BIT(NL80211_IFTYPE_STATION), | |
85 | }, | |
86 | { | |
87 | .max = 1, | |
88 | .types = BIT(NL80211_IFTYPE_P2P_GO) | | |
89 | BIT(NL80211_IFTYPE_AP), | |
90 | }, | |
91 | }; | |
92 | ||
93 | static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = { | |
94 | { | |
95 | .max = 2, | |
96 | .types = BIT(NL80211_IFTYPE_STATION), | |
97 | }, | |
98 | { | |
99 | .max = 1, | |
100 | .types = BIT(NL80211_IFTYPE_P2P_CLIENT), | |
101 | }, | |
102 | }; | |
103 | ||
104 | static const struct ieee80211_iface_combination | |
105 | iwlagn_iface_combinations_dualmode[] = { | |
106 | { .num_different_channels = 1, | |
107 | .max_interfaces = 2, | |
108 | .beacon_int_infra_match = true, | |
109 | .limits = iwlagn_sta_ap_limits, | |
110 | .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits), | |
111 | }, | |
112 | { .num_different_channels = 1, | |
113 | .max_interfaces = 2, | |
114 | .limits = iwlagn_2sta_limits, | |
115 | .n_limits = ARRAY_SIZE(iwlagn_2sta_limits), | |
116 | }, | |
117 | }; | |
118 | ||
119 | static const struct ieee80211_iface_combination | |
120 | iwlagn_iface_combinations_p2p[] = { | |
121 | { .num_different_channels = 1, | |
122 | .max_interfaces = 2, | |
123 | .beacon_int_infra_match = true, | |
124 | .limits = iwlagn_p2p_sta_go_limits, | |
125 | .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits), | |
126 | }, | |
127 | { .num_different_channels = 1, | |
128 | .max_interfaces = 2, | |
129 | .limits = iwlagn_p2p_2sta_limits, | |
130 | .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits), | |
131 | }, | |
132 | }; | |
133 | ||
134 | /* | |
135 | * Not a mac80211 entry point function, but it fits in with all the | |
136 | * other mac80211 functions grouped here. | |
137 | */ | |
138 | int iwlagn_mac_setup_register(struct iwl_priv *priv, | |
139 | struct iwlagn_ucode_capabilities *capa) | |
140 | { | |
141 | int ret; | |
142 | struct ieee80211_hw *hw = priv->hw; | |
143 | struct iwl_rxon_context *ctx; | |
144 | ||
145 | hw->rate_control_algorithm = "iwl-agn-rs"; | |
146 | ||
147 | /* Tell mac80211 our characteristics */ | |
148 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
149 | IEEE80211_HW_AMPDU_AGGREGATION | | |
150 | IEEE80211_HW_NEED_DTIM_PERIOD | | |
151 | IEEE80211_HW_SPECTRUM_MGMT | | |
152 | IEEE80211_HW_REPORTS_TX_ACK_STATUS; | |
153 | ||
154 | /* | |
155 | * Including the following line will crash some AP's. This | |
156 | * workaround removes the stimulus which causes the crash until | |
157 | * the AP software can be fixed. | |
158 | hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF; | |
159 | */ | |
160 | ||
161 | hw->flags |= IEEE80211_HW_SUPPORTS_PS | | |
162 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS; | |
163 | ||
38622419 | 164 | if (cfg(priv)->sku & EEPROM_SKU_CAP_11N_ENABLE) |
7335613a WYG |
165 | hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | |
166 | IEEE80211_HW_SUPPORTS_STATIC_SMPS; | |
167 | ||
168 | if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP) | |
169 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; | |
170 | ||
171 | hw->sta_data_size = sizeof(struct iwl_station_priv); | |
172 | hw->vif_data_size = sizeof(struct iwl_vif_priv); | |
173 | ||
174 | for_each_context(priv, ctx) { | |
175 | hw->wiphy->interface_modes |= ctx->interface_modes; | |
176 | hw->wiphy->interface_modes |= ctx->exclusive_interface_modes; | |
177 | } | |
178 | ||
179 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
180 | ||
181 | if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) { | |
182 | hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p; | |
183 | hw->wiphy->n_iface_combinations = | |
184 | ARRAY_SIZE(iwlagn_iface_combinations_p2p); | |
185 | } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { | |
186 | hw->wiphy->iface_combinations = | |
187 | iwlagn_iface_combinations_dualmode; | |
188 | hw->wiphy->n_iface_combinations = | |
189 | ARRAY_SIZE(iwlagn_iface_combinations_dualmode); | |
190 | } | |
191 | ||
192 | hw->wiphy->max_remain_on_channel_duration = 1000; | |
193 | ||
194 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | | |
195 | WIPHY_FLAG_DISABLE_BEACON_HINTS | | |
196 | WIPHY_FLAG_IBSS_RSN; | |
197 | ||
198 | if (trans(priv)->ucode_wowlan.code.len && | |
1042db2a | 199 | device_can_wakeup(trans(priv)->dev)) { |
7335613a WYG |
200 | hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | |
201 | WIPHY_WOWLAN_DISCONNECT | | |
202 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
203 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
204 | if (!iwlagn_mod_params.sw_crypto) | |
205 | hw->wiphy->wowlan.flags |= | |
206 | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | | |
207 | WIPHY_WOWLAN_GTK_REKEY_FAILURE; | |
208 | ||
209 | hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS; | |
210 | hw->wiphy->wowlan.pattern_min_len = | |
211 | IWLAGN_WOWLAN_MIN_PATTERN_LEN; | |
212 | hw->wiphy->wowlan.pattern_max_len = | |
213 | IWLAGN_WOWLAN_MAX_PATTERN_LEN; | |
214 | } | |
215 | ||
216 | if (iwlagn_mod_params.power_save) | |
217 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
218 | else | |
219 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
220 | ||
221 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; | |
222 | /* we create the 802.11 header and a zero-length SSID element */ | |
223 | hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 2; | |
224 | ||
225 | /* Default value; 4 EDCA QOS priorities */ | |
226 | hw->queues = 4; | |
227 | ||
228 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; | |
229 | ||
230 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) | |
231 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
232 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
233 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) | |
234 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
235 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
236 | ||
99673ee5 | 237 | hw->wiphy->hw_version = trans(priv)->hw_id; |
0ba958eb | 238 | |
7335613a WYG |
239 | iwl_leds_init(priv); |
240 | ||
241 | ret = ieee80211_register_hw(priv->hw); | |
242 | if (ret) { | |
243 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); | |
244 | return ret; | |
245 | } | |
246 | priv->mac80211_registered = 1; | |
247 | ||
248 | return 0; | |
249 | } | |
250 | ||
09af1403 DF |
251 | void iwlagn_mac_unregister(struct iwl_priv *priv) |
252 | { | |
253 | if (!priv->mac80211_registered) | |
254 | return; | |
255 | iwl_leds_exit(priv); | |
256 | ieee80211_unregister_hw(priv->hw); | |
257 | priv->mac80211_registered = 0; | |
258 | } | |
259 | ||
7335613a WYG |
260 | static int __iwl_up(struct iwl_priv *priv) |
261 | { | |
262 | struct iwl_rxon_context *ctx; | |
263 | int ret; | |
264 | ||
265 | lockdep_assert_held(&priv->shrd->mutex); | |
266 | ||
267 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) { | |
268 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); | |
269 | return -EIO; | |
270 | } | |
271 | ||
272 | for_each_context(priv, ctx) { | |
273 | ret = iwlagn_alloc_bcast_station(priv, ctx); | |
274 | if (ret) { | |
275 | iwl_dealloc_bcast_stations(priv); | |
276 | return ret; | |
277 | } | |
278 | } | |
279 | ||
69a679b0 | 280 | ret = iwl_run_init_ucode(trans(priv)); |
7335613a WYG |
281 | if (ret) { |
282 | IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret); | |
283 | goto error; | |
284 | } | |
285 | ||
69a679b0 | 286 | ret = iwl_load_ucode_wait_alive(trans(priv), IWL_UCODE_REGULAR); |
7335613a WYG |
287 | if (ret) { |
288 | IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret); | |
289 | goto error; | |
290 | } | |
291 | ||
292 | ret = iwl_alive_start(priv); | |
293 | if (ret) | |
294 | goto error; | |
295 | return 0; | |
296 | ||
297 | error: | |
298 | set_bit(STATUS_EXIT_PENDING, &priv->shrd->status); | |
299 | __iwl_down(priv); | |
300 | clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status); | |
301 | ||
302 | IWL_ERR(priv, "Unable to initialize device.\n"); | |
303 | return ret; | |
304 | } | |
305 | ||
306 | static int iwlagn_mac_start(struct ieee80211_hw *hw) | |
307 | { | |
308 | struct iwl_priv *priv = hw->priv; | |
309 | int ret; | |
310 | ||
311 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
312 | ||
313 | /* we should be verifying the device is ready to be opened */ | |
314 | mutex_lock(&priv->shrd->mutex); | |
315 | ret = __iwl_up(priv); | |
316 | mutex_unlock(&priv->shrd->mutex); | |
317 | if (ret) | |
318 | return ret; | |
319 | ||
320 | IWL_DEBUG_INFO(priv, "Start UP work done.\n"); | |
321 | ||
322 | /* Now we should be done, and the READY bit should be set. */ | |
323 | if (WARN_ON(!test_bit(STATUS_READY, &priv->shrd->status))) | |
324 | ret = -EIO; | |
325 | ||
326 | iwlagn_led_enable(priv); | |
327 | ||
328 | priv->is_open = 1; | |
329 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
330 | return 0; | |
331 | } | |
332 | ||
333 | static void iwlagn_mac_stop(struct ieee80211_hw *hw) | |
334 | { | |
335 | struct iwl_priv *priv = hw->priv; | |
336 | ||
337 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
338 | ||
339 | if (!priv->is_open) | |
340 | return; | |
341 | ||
342 | priv->is_open = 0; | |
343 | ||
344 | iwl_down(priv); | |
345 | ||
346 | flush_workqueue(priv->shrd->workqueue); | |
347 | ||
348 | /* User space software may expect getting rfkill changes | |
349 | * even if interface is down */ | |
1042db2a | 350 | iwl_write32(trans(priv), CSR_INT, 0xFFFFFFFF); |
7335613a WYG |
351 | iwl_enable_rfkill_int(priv); |
352 | ||
353 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
354 | } | |
355 | ||
356 | static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw, | |
357 | struct ieee80211_vif *vif, | |
358 | struct cfg80211_gtk_rekey_data *data) | |
359 | { | |
360 | struct iwl_priv *priv = hw->priv; | |
361 | ||
362 | if (iwlagn_mod_params.sw_crypto) | |
363 | return; | |
364 | ||
365 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
366 | mutex_lock(&priv->shrd->mutex); | |
367 | ||
368 | if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif) | |
369 | goto out; | |
370 | ||
371 | memcpy(priv->kek, data->kek, NL80211_KEK_LEN); | |
372 | memcpy(priv->kck, data->kck, NL80211_KCK_LEN); | |
373 | priv->replay_ctr = | |
374 | cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); | |
375 | priv->have_rekey_data = true; | |
376 | ||
377 | out: | |
378 | mutex_unlock(&priv->shrd->mutex); | |
379 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
380 | } | |
381 | ||
382 | #ifdef CONFIG_PM_SLEEP | |
7335613a WYG |
383 | |
384 | static int iwlagn_mac_suspend(struct ieee80211_hw *hw, | |
385 | struct cfg80211_wowlan *wowlan) | |
386 | { | |
387 | struct iwl_priv *priv = hw->priv; | |
7335613a | 388 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
023ca58f | 389 | int ret; |
7335613a WYG |
390 | |
391 | if (WARN_ON(!wowlan)) | |
392 | return -EINVAL; | |
393 | ||
394 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
395 | mutex_lock(&priv->shrd->mutex); | |
396 | ||
397 | /* Don't attempt WoWLAN when not associated, tear down instead. */ | |
398 | if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION || | |
399 | !iwl_is_associated_ctx(ctx)) { | |
400 | ret = 1; | |
401 | goto out; | |
402 | } | |
403 | ||
023ca58f | 404 | ret = iwlagn_suspend(priv, hw, wowlan); |
7335613a WYG |
405 | if (ret) |
406 | goto error; | |
407 | ||
1042db2a | 408 | device_set_wakeup_enable(trans(priv)->dev, true); |
7335613a WYG |
409 | |
410 | /* Now let the ucode operate on its own */ | |
1042db2a | 411 | iwl_write32(trans(priv), CSR_UCODE_DRV_GP1_SET, |
7335613a WYG |
412 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); |
413 | ||
414 | goto out; | |
415 | ||
416 | error: | |
417 | priv->shrd->wowlan = false; | |
418 | iwlagn_prepare_restart(priv); | |
419 | ieee80211_restart_hw(priv->hw); | |
420 | out: | |
421 | mutex_unlock(&priv->shrd->mutex); | |
7335613a WYG |
422 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
423 | ||
424 | return ret; | |
425 | } | |
426 | ||
427 | static int iwlagn_mac_resume(struct ieee80211_hw *hw) | |
428 | { | |
429 | struct iwl_priv *priv = hw->priv; | |
430 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
431 | struct ieee80211_vif *vif; | |
432 | unsigned long flags; | |
433 | u32 base, status = 0xffffffff; | |
434 | int ret = -EIO; | |
435 | ||
436 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
437 | mutex_lock(&priv->shrd->mutex); | |
438 | ||
1042db2a | 439 | iwl_write32(trans(priv), CSR_UCODE_DRV_GP1_CLR, |
7335613a WYG |
440 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); |
441 | ||
ae6130fc | 442 | base = priv->shrd->device_pointers.error_event_table; |
7335613a | 443 | if (iwlagn_hw_valid_rtc_data_addr(base)) { |
1042db2a EG |
444 | spin_lock_irqsave(&trans(priv)->reg_lock, flags); |
445 | ret = iwl_grab_nic_access_silent(trans(priv)); | |
7335613a | 446 | if (ret == 0) { |
1042db2a EG |
447 | iwl_write32(trans(priv), HBUS_TARG_MEM_RADDR, base); |
448 | status = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT); | |
449 | iwl_release_nic_access(trans(priv)); | |
7335613a | 450 | } |
1042db2a | 451 | spin_unlock_irqrestore(&trans(priv)->reg_lock, flags); |
7335613a WYG |
452 | |
453 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
454 | if (ret == 0) { | |
455 | struct iwl_trans *trans = trans(priv); | |
456 | if (!priv->wowlan_sram) | |
457 | priv->wowlan_sram = | |
458 | kzalloc(trans->ucode_wowlan.data.len, | |
459 | GFP_KERNEL); | |
460 | ||
461 | if (priv->wowlan_sram) | |
462 | _iwl_read_targ_mem_words( | |
1042db2a EG |
463 | trans(priv), 0x800000, |
464 | priv->wowlan_sram, | |
7335613a WYG |
465 | trans->ucode_wowlan.data.len / 4); |
466 | } | |
467 | #endif | |
468 | } | |
469 | ||
470 | /* we'll clear ctx->vif during iwlagn_prepare_restart() */ | |
471 | vif = ctx->vif; | |
472 | ||
473 | priv->shrd->wowlan = false; | |
474 | ||
1042db2a | 475 | device_set_wakeup_enable(trans(priv)->dev, false); |
7335613a WYG |
476 | |
477 | iwlagn_prepare_restart(priv); | |
478 | ||
479 | memset((void *)&ctx->active, 0, sizeof(ctx->active)); | |
480 | iwl_connection_init_rx_config(priv, ctx); | |
481 | iwlagn_set_rxon_chain(priv, ctx); | |
482 | ||
483 | mutex_unlock(&priv->shrd->mutex); | |
484 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
485 | ||
486 | ieee80211_resume_disconnect(vif); | |
487 | ||
488 | return 1; | |
489 | } | |
490 | ||
491 | #endif | |
492 | ||
493 | static void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | |
494 | { | |
495 | struct iwl_priv *priv = hw->priv; | |
496 | ||
7335613a WYG |
497 | IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
498 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); | |
499 | ||
500 | if (iwlagn_tx_skb(priv, skb)) | |
501 | dev_kfree_skb_any(skb); | |
7335613a WYG |
502 | } |
503 | ||
504 | static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw, | |
505 | struct ieee80211_vif *vif, | |
506 | struct ieee80211_key_conf *keyconf, | |
507 | struct ieee80211_sta *sta, | |
508 | u32 iv32, u16 *phase1key) | |
509 | { | |
510 | struct iwl_priv *priv = hw->priv; | |
511 | ||
512 | iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key); | |
513 | } | |
514 | ||
515 | static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, | |
516 | struct ieee80211_vif *vif, | |
517 | struct ieee80211_sta *sta, | |
518 | struct ieee80211_key_conf *key) | |
519 | { | |
520 | struct iwl_priv *priv = hw->priv; | |
521 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
522 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
523 | int ret; | |
524 | bool is_default_wep_key = false; | |
525 | ||
526 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
527 | ||
528 | if (iwlagn_mod_params.sw_crypto) { | |
529 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); | |
530 | return -EOPNOTSUPP; | |
531 | } | |
532 | ||
a7e12c8e JB |
533 | switch (key->cipher) { |
534 | case WLAN_CIPHER_SUITE_TKIP: | |
535 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
536 | /* fall through */ | |
537 | case WLAN_CIPHER_SUITE_CCMP: | |
538 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
539 | break; | |
540 | default: | |
541 | break; | |
542 | } | |
543 | ||
7335613a WYG |
544 | /* |
545 | * We could program these keys into the hardware as well, but we | |
546 | * don't expect much multicast traffic in IBSS and having keys | |
547 | * for more stations is probably more useful. | |
548 | * | |
549 | * Mark key TX-only and return 0. | |
550 | */ | |
551 | if (vif->type == NL80211_IFTYPE_ADHOC && | |
552 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { | |
553 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
554 | return 0; | |
555 | } | |
556 | ||
557 | /* If they key was TX-only, accept deletion */ | |
558 | if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET) | |
559 | return 0; | |
560 | ||
561 | mutex_lock(&priv->shrd->mutex); | |
562 | iwl_scan_cancel_timeout(priv, 100); | |
563 | ||
564 | BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT); | |
565 | ||
566 | /* | |
567 | * If we are getting WEP group key and we didn't receive any key mapping | |
568 | * so far, we are in legacy wep mode (group key only), otherwise we are | |
569 | * in 1X mode. | |
570 | * In legacy wep mode, we use another host command to the uCode. | |
571 | */ | |
572 | if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || | |
573 | key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) { | |
574 | if (cmd == SET_KEY) | |
575 | is_default_wep_key = !ctx->key_mapping_keys; | |
576 | else | |
577 | is_default_wep_key = | |
578 | key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT; | |
579 | } | |
580 | ||
581 | ||
582 | switch (cmd) { | |
583 | case SET_KEY: | |
584 | if (is_default_wep_key) { | |
585 | ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key); | |
586 | break; | |
587 | } | |
588 | ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta); | |
589 | if (ret) { | |
590 | /* | |
591 | * can't add key for RX, but we don't need it | |
592 | * in the device for TX so still return 0 | |
593 | */ | |
594 | ret = 0; | |
595 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
596 | } | |
597 | ||
598 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); | |
599 | break; | |
600 | case DISABLE_KEY: | |
601 | if (is_default_wep_key) | |
602 | ret = iwl_remove_default_wep_key(priv, ctx, key); | |
603 | else | |
604 | ret = iwl_remove_dynamic_key(priv, ctx, key, sta); | |
605 | ||
606 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); | |
607 | break; | |
608 | default: | |
609 | ret = -EINVAL; | |
610 | } | |
611 | ||
612 | mutex_unlock(&priv->shrd->mutex); | |
613 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
614 | ||
615 | return ret; | |
616 | } | |
617 | ||
618 | static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, | |
619 | struct ieee80211_vif *vif, | |
620 | enum ieee80211_ampdu_mlme_action action, | |
621 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, | |
622 | u8 buf_size) | |
623 | { | |
624 | struct iwl_priv *priv = hw->priv; | |
625 | int ret = -EINVAL; | |
626 | struct iwl_station_priv *sta_priv = (void *) sta->drv_priv; | |
7335613a WYG |
627 | |
628 | IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", | |
629 | sta->addr, tid); | |
630 | ||
38622419 | 631 | if (!(cfg(priv)->sku & EEPROM_SKU_CAP_11N_ENABLE)) |
7335613a WYG |
632 | return -EACCES; |
633 | ||
634 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
635 | mutex_lock(&priv->shrd->mutex); | |
636 | ||
637 | switch (action) { | |
638 | case IEEE80211_AMPDU_RX_START: | |
7428994d JB |
639 | if (iwlagn_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) |
640 | break; | |
7335613a WYG |
641 | IWL_DEBUG_HT(priv, "start Rx\n"); |
642 | ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn); | |
643 | break; | |
644 | case IEEE80211_AMPDU_RX_STOP: | |
645 | IWL_DEBUG_HT(priv, "stop Rx\n"); | |
646 | ret = iwl_sta_rx_agg_stop(priv, sta, tid); | |
647 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) | |
648 | ret = 0; | |
649 | break; | |
650 | case IEEE80211_AMPDU_TX_START: | |
7428994d JB |
651 | if (iwlagn_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) |
652 | break; | |
7335613a WYG |
653 | IWL_DEBUG_HT(priv, "start Tx\n"); |
654 | ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn); | |
655 | break; | |
656 | case IEEE80211_AMPDU_TX_STOP: | |
657 | IWL_DEBUG_HT(priv, "stop Tx\n"); | |
658 | ret = iwlagn_tx_agg_stop(priv, vif, sta, tid); | |
659 | if ((ret == 0) && (priv->agg_tids_count > 0)) { | |
660 | priv->agg_tids_count--; | |
661 | IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", | |
662 | priv->agg_tids_count); | |
663 | } | |
664 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) | |
665 | ret = 0; | |
38622419 DF |
666 | if (!priv->agg_tids_count && cfg(priv)->ht_params && |
667 | cfg(priv)->ht_params->use_rts_for_aggregation) { | |
7335613a WYG |
668 | /* |
669 | * switch off RTS/CTS if it was previously enabled | |
670 | */ | |
671 | sta_priv->lq_sta.lq.general_params.flags &= | |
672 | ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; | |
673 | iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), | |
674 | &sta_priv->lq_sta.lq, CMD_ASYNC, false); | |
675 | } | |
676 | break; | |
677 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
822e8b2a | 678 | ret = iwlagn_tx_agg_oper(priv, vif, sta, tid, buf_size); |
7335613a WYG |
679 | break; |
680 | } | |
681 | mutex_unlock(&priv->shrd->mutex); | |
682 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
683 | return ret; | |
684 | } | |
685 | ||
686 | static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, | |
687 | struct ieee80211_vif *vif, | |
688 | struct ieee80211_sta *sta) | |
689 | { | |
690 | struct iwl_priv *priv = hw->priv; | |
691 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
692 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
693 | bool is_ap = vif->type == NL80211_IFTYPE_STATION; | |
694 | int ret = 0; | |
695 | u8 sta_id; | |
696 | ||
697 | IWL_DEBUG_MAC80211(priv, "received request to add station %pM\n", | |
698 | sta->addr); | |
699 | mutex_lock(&priv->shrd->mutex); | |
700 | IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", | |
701 | sta->addr); | |
702 | sta_priv->sta_id = IWL_INVALID_STATION; | |
703 | ||
704 | atomic_set(&sta_priv->pending_frames, 0); | |
705 | if (vif->type == NL80211_IFTYPE_AP) | |
706 | sta_priv->client = true; | |
707 | ||
708 | ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr, | |
709 | is_ap, sta, &sta_id); | |
710 | if (ret) { | |
711 | IWL_ERR(priv, "Unable to add station %pM (%d)\n", | |
712 | sta->addr, ret); | |
713 | /* Should we return success if return code is EEXIST ? */ | |
714 | goto out; | |
715 | } | |
716 | ||
717 | sta_priv->sta_id = sta_id; | |
718 | ||
719 | /* Initialize rate scaling */ | |
720 | IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n", | |
721 | sta->addr); | |
722 | iwl_rs_rate_init(priv, sta, sta_id); | |
723 | out: | |
724 | mutex_unlock(&priv->shrd->mutex); | |
725 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
726 | ||
727 | return ret; | |
728 | } | |
729 | ||
730 | static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, | |
731 | struct ieee80211_channel_switch *ch_switch) | |
732 | { | |
733 | struct iwl_priv *priv = hw->priv; | |
734 | const struct iwl_channel_info *ch_info; | |
735 | struct ieee80211_conf *conf = &hw->conf; | |
736 | struct ieee80211_channel *channel = ch_switch->channel; | |
737 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; | |
738 | /* | |
739 | * MULTI-FIXME | |
740 | * When we add support for multiple interfaces, we need to | |
741 | * revisit this. The channel switch command in the device | |
742 | * only affects the BSS context, but what does that really | |
743 | * mean? And what if we get a CSA on the second interface? | |
744 | * This needs a lot of work. | |
745 | */ | |
746 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
747 | u16 ch; | |
748 | ||
749 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
750 | ||
751 | mutex_lock(&priv->shrd->mutex); | |
752 | ||
753 | if (iwl_is_rfkill(priv->shrd)) | |
754 | goto out; | |
755 | ||
756 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) || | |
757 | test_bit(STATUS_SCANNING, &priv->shrd->status) || | |
758 | test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status)) | |
759 | goto out; | |
760 | ||
761 | if (!iwl_is_associated_ctx(ctx)) | |
762 | goto out; | |
763 | ||
38622419 | 764 | if (!cfg(priv)->lib->set_channel_switch) |
7335613a WYG |
765 | goto out; |
766 | ||
767 | ch = channel->hw_value; | |
768 | if (le16_to_cpu(ctx->active.channel) == ch) | |
769 | goto out; | |
770 | ||
771 | ch_info = iwl_get_channel_info(priv, channel->band, ch); | |
772 | if (!is_channel_valid(ch_info)) { | |
773 | IWL_DEBUG_MAC80211(priv, "invalid channel\n"); | |
774 | goto out; | |
775 | } | |
776 | ||
777 | spin_lock_irq(&priv->shrd->lock); | |
778 | ||
779 | priv->current_ht_config.smps = conf->smps_mode; | |
780 | ||
781 | /* Configure HT40 channels */ | |
782 | ctx->ht.enabled = conf_is_ht(conf); | |
137ce797 WYG |
783 | if (ctx->ht.enabled) |
784 | iwlagn_config_ht40(conf, ctx); | |
785 | else | |
7335613a WYG |
786 | ctx->ht.is_40mhz = false; |
787 | ||
788 | if ((le16_to_cpu(ctx->staging.channel) != ch)) | |
789 | ctx->staging.flags = 0; | |
790 | ||
791 | iwl_set_rxon_channel(priv, channel, ctx); | |
792 | iwl_set_rxon_ht(priv, ht_conf); | |
793 | iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif); | |
794 | ||
795 | spin_unlock_irq(&priv->shrd->lock); | |
796 | ||
797 | iwl_set_rate(priv); | |
798 | /* | |
799 | * at this point, staging_rxon has the | |
800 | * configuration for channel switch | |
801 | */ | |
802 | set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status); | |
803 | priv->switch_channel = cpu_to_le16(ch); | |
38622419 | 804 | if (cfg(priv)->lib->set_channel_switch(priv, ch_switch)) { |
7335613a WYG |
805 | clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status); |
806 | priv->switch_channel = 0; | |
807 | ieee80211_chswitch_done(ctx->vif, false); | |
808 | } | |
809 | ||
810 | out: | |
811 | mutex_unlock(&priv->shrd->mutex); | |
812 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
813 | } | |
814 | ||
815 | static void iwlagn_configure_filter(struct ieee80211_hw *hw, | |
816 | unsigned int changed_flags, | |
817 | unsigned int *total_flags, | |
818 | u64 multicast) | |
819 | { | |
820 | struct iwl_priv *priv = hw->priv; | |
821 | __le32 filter_or = 0, filter_nand = 0; | |
822 | struct iwl_rxon_context *ctx; | |
823 | ||
824 | #define CHK(test, flag) do { \ | |
825 | if (*total_flags & (test)) \ | |
826 | filter_or |= (flag); \ | |
827 | else \ | |
828 | filter_nand |= (flag); \ | |
829 | } while (0) | |
830 | ||
831 | IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", | |
832 | changed_flags, *total_flags); | |
833 | ||
834 | CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); | |
835 | /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */ | |
836 | CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK); | |
837 | CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); | |
838 | ||
839 | #undef CHK | |
840 | ||
841 | mutex_lock(&priv->shrd->mutex); | |
842 | ||
843 | for_each_context(priv, ctx) { | |
844 | ctx->staging.filter_flags &= ~filter_nand; | |
845 | ctx->staging.filter_flags |= filter_or; | |
846 | ||
847 | /* | |
848 | * Not committing directly because hardware can perform a scan, | |
849 | * but we'll eventually commit the filter flags change anyway. | |
850 | */ | |
851 | } | |
852 | ||
853 | mutex_unlock(&priv->shrd->mutex); | |
854 | ||
855 | /* | |
856 | * Receiving all multicast frames is always enabled by the | |
857 | * default flags setup in iwl_connection_init_rx_config() | |
858 | * since we currently do not support programming multicast | |
859 | * filters into the device. | |
860 | */ | |
861 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | | |
862 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; | |
863 | } | |
864 | ||
865 | static void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop) | |
866 | { | |
867 | struct iwl_priv *priv = hw->priv; | |
868 | ||
869 | mutex_lock(&priv->shrd->mutex); | |
870 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
871 | ||
872 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) { | |
873 | IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n"); | |
874 | goto done; | |
875 | } | |
876 | if (iwl_is_rfkill(priv->shrd)) { | |
877 | IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n"); | |
878 | goto done; | |
879 | } | |
880 | ||
881 | /* | |
882 | * mac80211 will not push any more frames for transmit | |
883 | * until the flush is completed | |
884 | */ | |
885 | if (drop) { | |
886 | IWL_DEBUG_MAC80211(priv, "send flush command\n"); | |
887 | if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) { | |
888 | IWL_ERR(priv, "flush request fail\n"); | |
889 | goto done; | |
890 | } | |
891 | } | |
892 | IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n"); | |
893 | iwl_trans_wait_tx_queue_empty(trans(priv)); | |
894 | done: | |
895 | mutex_unlock(&priv->shrd->mutex); | |
896 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
897 | } | |
898 | ||
899 | static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw, | |
900 | struct ieee80211_channel *channel, | |
901 | enum nl80211_channel_type channel_type, | |
902 | int duration) | |
903 | { | |
904 | struct iwl_priv *priv = hw->priv; | |
905 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN]; | |
906 | int err = 0; | |
907 | ||
908 | if (!(priv->shrd->valid_contexts & BIT(IWL_RXON_CTX_PAN))) | |
909 | return -EOPNOTSUPP; | |
910 | ||
911 | if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT))) | |
912 | return -EOPNOTSUPP; | |
913 | ||
914 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
915 | mutex_lock(&priv->shrd->mutex); | |
916 | ||
917 | if (test_bit(STATUS_SCAN_HW, &priv->shrd->status)) { | |
918 | err = -EBUSY; | |
919 | goto out; | |
920 | } | |
921 | ||
922 | priv->hw_roc_channel = channel; | |
923 | priv->hw_roc_chantype = channel_type; | |
3ddf6bef JB |
924 | /* convert from ms to TU */ |
925 | priv->hw_roc_duration = DIV_ROUND_UP(1000 * duration, 1024); | |
7335613a WYG |
926 | priv->hw_roc_start_notified = false; |
927 | cancel_delayed_work(&priv->hw_roc_disable_work); | |
928 | ||
929 | if (!ctx->is_active) { | |
a69cd040 JB |
930 | static const struct iwl_qos_info default_qos_data = { |
931 | .def_qos_parm = { | |
932 | .ac[0] = { | |
933 | .cw_min = cpu_to_le16(3), | |
934 | .cw_max = cpu_to_le16(7), | |
935 | .aifsn = 2, | |
936 | .edca_txop = cpu_to_le16(1504), | |
937 | }, | |
938 | .ac[1] = { | |
939 | .cw_min = cpu_to_le16(7), | |
940 | .cw_max = cpu_to_le16(15), | |
941 | .aifsn = 2, | |
942 | .edca_txop = cpu_to_le16(3008), | |
943 | }, | |
944 | .ac[2] = { | |
945 | .cw_min = cpu_to_le16(15), | |
946 | .cw_max = cpu_to_le16(1023), | |
947 | .aifsn = 3, | |
948 | }, | |
949 | .ac[3] = { | |
950 | .cw_min = cpu_to_le16(15), | |
951 | .cw_max = cpu_to_le16(1023), | |
952 | .aifsn = 7, | |
953 | }, | |
954 | }, | |
955 | }; | |
956 | ||
7335613a | 957 | ctx->is_active = true; |
a69cd040 | 958 | ctx->qos_data = default_qos_data; |
7335613a WYG |
959 | ctx->staging.dev_type = RXON_DEV_TYPE_P2P; |
960 | memcpy(ctx->staging.node_addr, | |
961 | priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, | |
962 | ETH_ALEN); | |
963 | memcpy(ctx->staging.bssid_addr, | |
964 | priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, | |
965 | ETH_ALEN); | |
966 | err = iwlagn_commit_rxon(priv, ctx); | |
967 | if (err) | |
968 | goto out; | |
969 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK | | |
970 | RXON_FILTER_PROMISC_MSK | | |
971 | RXON_FILTER_CTL2HOST_MSK; | |
972 | ||
973 | err = iwlagn_commit_rxon(priv, ctx); | |
974 | if (err) { | |
975 | iwlagn_disable_roc(priv); | |
976 | goto out; | |
977 | } | |
978 | priv->hw_roc_setup = true; | |
979 | } | |
980 | ||
981 | err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band); | |
982 | if (err) | |
983 | iwlagn_disable_roc(priv); | |
984 | ||
985 | out: | |
986 | mutex_unlock(&priv->shrd->mutex); | |
987 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
988 | ||
989 | return err; | |
990 | } | |
991 | ||
992 | static int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw *hw) | |
993 | { | |
994 | struct iwl_priv *priv = hw->priv; | |
995 | ||
996 | if (!(priv->shrd->valid_contexts & BIT(IWL_RXON_CTX_PAN))) | |
997 | return -EOPNOTSUPP; | |
998 | ||
999 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1000 | mutex_lock(&priv->shrd->mutex); | |
1001 | iwl_scan_cancel_timeout(priv, priv->hw_roc_duration); | |
1002 | iwlagn_disable_roc(priv); | |
1003 | mutex_unlock(&priv->shrd->mutex); | |
1004 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1005 | ||
1006 | return 0; | |
1007 | } | |
1008 | ||
1009 | static int iwlagn_mac_tx_sync(struct ieee80211_hw *hw, | |
1010 | struct ieee80211_vif *vif, | |
1011 | const u8 *bssid, | |
1012 | enum ieee80211_tx_sync_type type) | |
1013 | { | |
1014 | struct iwl_priv *priv = hw->priv; | |
1015 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
1016 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
1017 | int ret; | |
1018 | u8 sta_id; | |
1019 | ||
5d22df20 JL |
1020 | if (ctx->ctxid != IWL_RXON_CTX_PAN) |
1021 | return 0; | |
1022 | ||
7335613a WYG |
1023 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
1024 | mutex_lock(&priv->shrd->mutex); | |
1025 | ||
1026 | if (iwl_is_associated_ctx(ctx)) { | |
1027 | ret = 0; | |
1028 | goto out; | |
1029 | } | |
1030 | ||
1031 | if (ctx->preauth_bssid || test_bit(STATUS_SCAN_HW, | |
1032 | &priv->shrd->status)) { | |
1033 | ret = -EBUSY; | |
1034 | goto out; | |
1035 | } | |
1036 | ||
1037 | ret = iwl_add_station_common(priv, ctx, bssid, true, NULL, &sta_id); | |
1038 | if (ret) | |
1039 | goto out; | |
1040 | ||
1041 | if (WARN_ON(sta_id != ctx->ap_sta_id)) { | |
1042 | ret = -EIO; | |
1043 | goto out_remove_sta; | |
1044 | } | |
1045 | ||
1046 | memcpy(ctx->bssid, bssid, ETH_ALEN); | |
1047 | ctx->preauth_bssid = true; | |
1048 | ||
1049 | ret = iwlagn_commit_rxon(priv, ctx); | |
1050 | ||
1051 | if (ret == 0) | |
1052 | goto out; | |
1053 | ||
1054 | out_remove_sta: | |
1055 | iwl_remove_station(priv, sta_id, bssid); | |
1056 | out: | |
1057 | mutex_unlock(&priv->shrd->mutex); | |
1058 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1059 | ||
1060 | return ret; | |
1061 | } | |
1062 | ||
1063 | static void iwlagn_mac_finish_tx_sync(struct ieee80211_hw *hw, | |
1064 | struct ieee80211_vif *vif, | |
1065 | const u8 *bssid, | |
1066 | enum ieee80211_tx_sync_type type) | |
1067 | { | |
1068 | struct iwl_priv *priv = hw->priv; | |
1069 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
1070 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
1071 | ||
5d22df20 JL |
1072 | if (ctx->ctxid != IWL_RXON_CTX_PAN) |
1073 | return; | |
1074 | ||
7335613a WYG |
1075 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
1076 | mutex_lock(&priv->shrd->mutex); | |
1077 | ||
1078 | if (iwl_is_associated_ctx(ctx)) | |
1079 | goto out; | |
1080 | ||
1081 | iwl_remove_station(priv, ctx->ap_sta_id, bssid); | |
1082 | ctx->preauth_bssid = false; | |
1083 | /* no need to commit */ | |
1084 | out: | |
1085 | mutex_unlock(&priv->shrd->mutex); | |
1086 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1087 | } | |
1088 | ||
1089 | static void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw, | |
1090 | enum ieee80211_rssi_event rssi_event) | |
1091 | { | |
1092 | struct iwl_priv *priv = hw->priv; | |
1093 | ||
1094 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1095 | mutex_lock(&priv->shrd->mutex); | |
1096 | ||
38622419 DF |
1097 | if (cfg(priv)->bt_params && |
1098 | cfg(priv)->bt_params->advanced_bt_coexist) { | |
7335613a WYG |
1099 | if (rssi_event == RSSI_EVENT_LOW) |
1100 | priv->bt_enable_pspoll = true; | |
1101 | else if (rssi_event == RSSI_EVENT_HIGH) | |
1102 | priv->bt_enable_pspoll = false; | |
1103 | ||
1104 | iwlagn_send_advance_bt_config(priv); | |
1105 | } else { | |
1106 | IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled," | |
1107 | "ignoring RSSI callback\n"); | |
1108 | } | |
1109 | ||
1110 | mutex_unlock(&priv->shrd->mutex); | |
1111 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1112 | } | |
1113 | ||
1114 | static int iwlagn_mac_set_tim(struct ieee80211_hw *hw, | |
1115 | struct ieee80211_sta *sta, bool set) | |
1116 | { | |
1117 | struct iwl_priv *priv = hw->priv; | |
1118 | ||
1119 | queue_work(priv->shrd->workqueue, &priv->beacon_update); | |
1120 | ||
1121 | return 0; | |
1122 | } | |
1123 | ||
0b7a4c78 WYG |
1124 | static int iwlagn_mac_conf_tx(struct ieee80211_hw *hw, |
1125 | struct ieee80211_vif *vif, u16 queue, | |
1126 | const struct ieee80211_tx_queue_params *params) | |
1127 | { | |
1128 | struct iwl_priv *priv = hw->priv; | |
1129 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
1130 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
1131 | unsigned long flags; | |
1132 | int q; | |
1133 | ||
1134 | if (WARN_ON(!ctx)) | |
1135 | return -EINVAL; | |
1136 | ||
1137 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1138 | ||
1139 | if (!iwl_is_ready_rf(priv->shrd)) { | |
1140 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); | |
1141 | return -EIO; | |
1142 | } | |
1143 | ||
1144 | if (queue >= AC_NUM) { | |
1145 | IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); | |
1146 | return 0; | |
1147 | } | |
1148 | ||
1149 | q = AC_NUM - 1 - queue; | |
1150 | ||
1151 | spin_lock_irqsave(&priv->shrd->lock, flags); | |
1152 | ||
1153 | ctx->qos_data.def_qos_parm.ac[q].cw_min = | |
1154 | cpu_to_le16(params->cw_min); | |
1155 | ctx->qos_data.def_qos_parm.ac[q].cw_max = | |
1156 | cpu_to_le16(params->cw_max); | |
1157 | ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
1158 | ctx->qos_data.def_qos_parm.ac[q].edca_txop = | |
1159 | cpu_to_le16((params->txop * 32)); | |
1160 | ||
1161 | ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
1162 | ||
1163 | spin_unlock_irqrestore(&priv->shrd->lock, flags); | |
1164 | ||
1165 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | static int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw) | |
1170 | { | |
1171 | struct iwl_priv *priv = hw->priv; | |
1172 | ||
1173 | return priv->ibss_manager == IWL_IBSS_MANAGER; | |
1174 | } | |
1175 | ||
1176 | static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx) | |
1177 | { | |
1178 | iwl_connection_init_rx_config(priv, ctx); | |
1179 | ||
1180 | iwlagn_set_rxon_chain(priv, ctx); | |
1181 | ||
1182 | return iwlagn_commit_rxon(priv, ctx); | |
1183 | } | |
1184 | ||
1185 | static int iwl_setup_interface(struct iwl_priv *priv, | |
1186 | struct iwl_rxon_context *ctx) | |
1187 | { | |
1188 | struct ieee80211_vif *vif = ctx->vif; | |
1189 | int err; | |
1190 | ||
1191 | lockdep_assert_held(&priv->shrd->mutex); | |
1192 | ||
1193 | /* | |
1194 | * This variable will be correct only when there's just | |
1195 | * a single context, but all code using it is for hardware | |
1196 | * that supports only one context. | |
1197 | */ | |
1198 | priv->iw_mode = vif->type; | |
1199 | ||
1200 | ctx->is_active = true; | |
1201 | ||
1202 | err = iwl_set_mode(priv, ctx); | |
1203 | if (err) { | |
1204 | if (!ctx->always_active) | |
1205 | ctx->is_active = false; | |
1206 | return err; | |
1207 | } | |
1208 | ||
38622419 | 1209 | if (cfg(priv)->bt_params && cfg(priv)->bt_params->advanced_bt_coexist && |
0b7a4c78 WYG |
1210 | vif->type == NL80211_IFTYPE_ADHOC) { |
1211 | /* | |
1212 | * pretend to have high BT traffic as long as we | |
1213 | * are operating in IBSS mode, as this will cause | |
1214 | * the rate scaling etc. to behave as intended. | |
1215 | */ | |
1216 | priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH; | |
1217 | } | |
1218 | ||
1219 | return 0; | |
1220 | } | |
1221 | ||
1222 | static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, | |
1223 | struct ieee80211_vif *vif) | |
1224 | { | |
1225 | struct iwl_priv *priv = hw->priv; | |
1226 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
1227 | struct iwl_rxon_context *tmp, *ctx = NULL; | |
1228 | int err; | |
1229 | enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif); | |
1230 | ||
1231 | IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n", | |
1232 | viftype, vif->addr); | |
1233 | ||
1234 | cancel_delayed_work_sync(&priv->hw_roc_disable_work); | |
1235 | ||
1236 | mutex_lock(&priv->shrd->mutex); | |
1237 | ||
1238 | iwlagn_disable_roc(priv); | |
1239 | ||
1240 | if (!iwl_is_ready_rf(priv->shrd)) { | |
1241 | IWL_WARN(priv, "Try to add interface when device not ready\n"); | |
1242 | err = -EINVAL; | |
1243 | goto out; | |
1244 | } | |
1245 | ||
1246 | for_each_context(priv, tmp) { | |
1247 | u32 possible_modes = | |
1248 | tmp->interface_modes | tmp->exclusive_interface_modes; | |
1249 | ||
1250 | if (tmp->vif) { | |
1251 | /* check if this busy context is exclusive */ | |
1252 | if (tmp->exclusive_interface_modes & | |
1253 | BIT(tmp->vif->type)) { | |
1254 | err = -EINVAL; | |
1255 | goto out; | |
1256 | } | |
1257 | continue; | |
1258 | } | |
1259 | ||
1260 | if (!(possible_modes & BIT(viftype))) | |
1261 | continue; | |
1262 | ||
1263 | /* have maybe usable context w/o interface */ | |
1264 | ctx = tmp; | |
1265 | break; | |
1266 | } | |
1267 | ||
1268 | if (!ctx) { | |
1269 | err = -EOPNOTSUPP; | |
1270 | goto out; | |
1271 | } | |
1272 | ||
1273 | vif_priv->ctx = ctx; | |
1274 | ctx->vif = vif; | |
1275 | ||
1276 | err = iwl_setup_interface(priv, ctx); | |
1277 | if (!err) | |
1278 | goto out; | |
1279 | ||
1280 | ctx->vif = NULL; | |
1281 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
1282 | out: | |
1283 | mutex_unlock(&priv->shrd->mutex); | |
1284 | ||
1285 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1286 | return err; | |
1287 | } | |
1288 | ||
1289 | static void iwl_teardown_interface(struct iwl_priv *priv, | |
1290 | struct ieee80211_vif *vif, | |
1291 | bool mode_change) | |
1292 | { | |
1293 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); | |
1294 | ||
1295 | lockdep_assert_held(&priv->shrd->mutex); | |
1296 | ||
1297 | if (priv->scan_vif == vif) { | |
1298 | iwl_scan_cancel_timeout(priv, 200); | |
1299 | iwl_force_scan_end(priv); | |
1300 | } | |
1301 | ||
1302 | if (!mode_change) { | |
1303 | iwl_set_mode(priv, ctx); | |
1304 | if (!ctx->always_active) | |
1305 | ctx->is_active = false; | |
1306 | } | |
1307 | ||
1308 | /* | |
1309 | * When removing the IBSS interface, overwrite the | |
1310 | * BT traffic load with the stored one from the last | |
1311 | * notification, if any. If this is a device that | |
1312 | * doesn't implement this, this has no effect since | |
1313 | * both values are the same and zero. | |
1314 | */ | |
1315 | if (vif->type == NL80211_IFTYPE_ADHOC) | |
1316 | priv->bt_traffic_load = priv->last_bt_traffic_load; | |
1317 | } | |
1318 | ||
1319 | static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw, | |
1320 | struct ieee80211_vif *vif) | |
1321 | { | |
1322 | struct iwl_priv *priv = hw->priv; | |
1323 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); | |
1324 | ||
1325 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1326 | ||
1327 | mutex_lock(&priv->shrd->mutex); | |
1328 | ||
1329 | if (WARN_ON(ctx->vif != vif)) { | |
1330 | struct iwl_rxon_context *tmp; | |
1331 | IWL_ERR(priv, "ctx->vif = %p, vif = %p\n", ctx->vif, vif); | |
1332 | for_each_context(priv, tmp) | |
1333 | IWL_ERR(priv, "\tID = %d:\tctx = %p\tctx->vif = %p\n", | |
1334 | tmp->ctxid, tmp, tmp->vif); | |
1335 | } | |
1336 | ctx->vif = NULL; | |
1337 | ||
1338 | iwl_teardown_interface(priv, vif, false); | |
1339 | ||
1340 | mutex_unlock(&priv->shrd->mutex); | |
1341 | ||
1342 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1343 | ||
1344 | } | |
1345 | ||
1346 | static int iwlagn_mac_change_interface(struct ieee80211_hw *hw, | |
1347 | struct ieee80211_vif *vif, | |
1348 | enum nl80211_iftype newtype, bool newp2p) | |
1349 | { | |
1350 | struct iwl_priv *priv = hw->priv; | |
1351 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); | |
1352 | struct iwl_rxon_context *bss_ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
1353 | struct iwl_rxon_context *tmp; | |
1354 | enum nl80211_iftype newviftype = newtype; | |
1355 | u32 interface_modes; | |
1356 | int err; | |
1357 | ||
1358 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1359 | ||
1360 | newtype = ieee80211_iftype_p2p(newtype, newp2p); | |
1361 | ||
1362 | mutex_lock(&priv->shrd->mutex); | |
1363 | ||
1364 | if (!ctx->vif || !iwl_is_ready_rf(priv->shrd)) { | |
1365 | /* | |
1366 | * Huh? But wait ... this can maybe happen when | |
1367 | * we're in the middle of a firmware restart! | |
1368 | */ | |
1369 | err = -EBUSY; | |
1370 | goto out; | |
1371 | } | |
1372 | ||
1373 | interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes; | |
1374 | ||
1375 | if (!(interface_modes & BIT(newtype))) { | |
1376 | err = -EBUSY; | |
1377 | goto out; | |
1378 | } | |
1379 | ||
1380 | /* | |
1381 | * Refuse a change that should be done by moving from the PAN | |
1382 | * context to the BSS context instead, if the BSS context is | |
1383 | * available and can support the new interface type. | |
1384 | */ | |
1385 | if (ctx->ctxid == IWL_RXON_CTX_PAN && !bss_ctx->vif && | |
1386 | (bss_ctx->interface_modes & BIT(newtype) || | |
1387 | bss_ctx->exclusive_interface_modes & BIT(newtype))) { | |
1388 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
1389 | err = -EBUSY; | |
1390 | goto out; | |
1391 | } | |
1392 | ||
1393 | if (ctx->exclusive_interface_modes & BIT(newtype)) { | |
1394 | for_each_context(priv, tmp) { | |
1395 | if (ctx == tmp) | |
1396 | continue; | |
1397 | ||
1398 | if (!tmp->vif) | |
1399 | continue; | |
1400 | ||
1401 | /* | |
1402 | * The current mode switch would be exclusive, but | |
1403 | * another context is active ... refuse the switch. | |
1404 | */ | |
1405 | err = -EBUSY; | |
1406 | goto out; | |
1407 | } | |
1408 | } | |
1409 | ||
1410 | /* success */ | |
1411 | iwl_teardown_interface(priv, vif, true); | |
1412 | vif->type = newviftype; | |
1413 | vif->p2p = newp2p; | |
1414 | err = iwl_setup_interface(priv, ctx); | |
1415 | WARN_ON(err); | |
1416 | /* | |
1417 | * We've switched internally, but submitting to the | |
1418 | * device may have failed for some reason. Mask this | |
1419 | * error, because otherwise mac80211 will not switch | |
1420 | * (and set the interface type back) and we'll be | |
1421 | * out of sync with it. | |
1422 | */ | |
1423 | err = 0; | |
1424 | ||
1425 | out: | |
1426 | mutex_unlock(&priv->shrd->mutex); | |
1427 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1428 | ||
1429 | return err; | |
1430 | } | |
1431 | ||
ba4c5319 WYG |
1432 | static int iwlagn_mac_hw_scan(struct ieee80211_hw *hw, |
1433 | struct ieee80211_vif *vif, | |
1434 | struct cfg80211_scan_request *req) | |
1435 | { | |
1436 | struct iwl_priv *priv = hw->priv; | |
1437 | int ret; | |
1438 | ||
1439 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1440 | ||
1441 | if (req->n_channels == 0) | |
1442 | return -EINVAL; | |
1443 | ||
1444 | mutex_lock(&priv->shrd->mutex); | |
1445 | ||
1446 | /* | |
1447 | * If an internal scan is in progress, just set | |
1448 | * up the scan_request as per above. | |
1449 | */ | |
1450 | if (priv->scan_type != IWL_SCAN_NORMAL) { | |
1451 | IWL_DEBUG_SCAN(priv, | |
1452 | "SCAN request during internal scan - defer\n"); | |
1453 | priv->scan_request = req; | |
1454 | priv->scan_vif = vif; | |
1455 | ret = 0; | |
1456 | } else { | |
1457 | priv->scan_request = req; | |
1458 | priv->scan_vif = vif; | |
1459 | /* | |
1460 | * mac80211 will only ask for one band at a time | |
1461 | * so using channels[0] here is ok | |
1462 | */ | |
1463 | ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL, | |
1464 | req->channels[0]->band); | |
1465 | if (ret) { | |
1466 | priv->scan_request = NULL; | |
1467 | priv->scan_vif = NULL; | |
1468 | } | |
1469 | } | |
1470 | ||
1471 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1472 | ||
1473 | mutex_unlock(&priv->shrd->mutex); | |
1474 | ||
1475 | return ret; | |
1476 | } | |
1477 | ||
76b29331 WYG |
1478 | static int iwlagn_mac_sta_remove(struct ieee80211_hw *hw, |
1479 | struct ieee80211_vif *vif, | |
1480 | struct ieee80211_sta *sta) | |
1481 | { | |
1482 | struct iwl_priv *priv = hw->priv; | |
1483 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
1484 | int ret; | |
1485 | ||
1486 | IWL_DEBUG_MAC80211(priv, "enter: received request to remove " | |
1487 | "station %pM\n", sta->addr); | |
1488 | mutex_lock(&priv->shrd->mutex); | |
1489 | IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", | |
1490 | sta->addr); | |
1491 | ret = iwl_remove_station(priv, sta_priv->sta_id, sta->addr); | |
1492 | if (ret) | |
1493 | IWL_DEBUG_QUIET_RFKILL(priv, "Error removing station %pM\n", | |
1494 | sta->addr); | |
1495 | mutex_unlock(&priv->shrd->mutex); | |
1496 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1497 | ||
1498 | return ret; | |
1499 | } | |
1500 | ||
1501 | static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id) | |
1502 | { | |
1503 | unsigned long flags; | |
1504 | ||
1505 | spin_lock_irqsave(&priv->shrd->sta_lock, flags); | |
1506 | priv->stations[sta_id].sta.station_flags &= ~STA_FLG_PWR_SAVE_MSK; | |
1507 | priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK; | |
1508 | priv->stations[sta_id].sta.sta.modify_mask = 0; | |
1509 | priv->stations[sta_id].sta.sleep_tx_count = 0; | |
1510 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
1511 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); | |
1512 | spin_unlock_irqrestore(&priv->shrd->sta_lock, flags); | |
1513 | ||
1514 | } | |
1515 | ||
1516 | static void iwlagn_mac_sta_notify(struct ieee80211_hw *hw, | |
1517 | struct ieee80211_vif *vif, | |
1518 | enum sta_notify_cmd cmd, | |
1519 | struct ieee80211_sta *sta) | |
1520 | { | |
1521 | struct iwl_priv *priv = hw->priv; | |
1522 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
1523 | int sta_id; | |
1524 | ||
1525 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1526 | ||
1527 | switch (cmd) { | |
1528 | case STA_NOTIFY_SLEEP: | |
1529 | WARN_ON(!sta_priv->client); | |
1530 | sta_priv->asleep = true; | |
1531 | if (atomic_read(&sta_priv->pending_frames) > 0) | |
1532 | ieee80211_sta_block_awake(hw, sta, true); | |
1533 | break; | |
1534 | case STA_NOTIFY_AWAKE: | |
1535 | WARN_ON(!sta_priv->client); | |
1536 | if (!sta_priv->asleep) | |
1537 | break; | |
1538 | sta_priv->asleep = false; | |
1539 | sta_id = iwl_sta_id(sta); | |
1540 | if (sta_id != IWL_INVALID_STATION) | |
1541 | iwl_sta_modify_ps_wake(priv, sta_id); | |
1542 | break; | |
1543 | default: | |
1544 | break; | |
1545 | } | |
1546 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1547 | } | |
1548 | ||
7335613a WYG |
1549 | struct ieee80211_ops iwlagn_hw_ops = { |
1550 | .tx = iwlagn_mac_tx, | |
1551 | .start = iwlagn_mac_start, | |
1552 | .stop = iwlagn_mac_stop, | |
1553 | #ifdef CONFIG_PM_SLEEP | |
1554 | .suspend = iwlagn_mac_suspend, | |
1555 | .resume = iwlagn_mac_resume, | |
1556 | #endif | |
1557 | .add_interface = iwlagn_mac_add_interface, | |
1558 | .remove_interface = iwlagn_mac_remove_interface, | |
1559 | .change_interface = iwlagn_mac_change_interface, | |
1560 | .config = iwlagn_mac_config, | |
1561 | .configure_filter = iwlagn_configure_filter, | |
1562 | .set_key = iwlagn_mac_set_key, | |
1563 | .update_tkip_key = iwlagn_mac_update_tkip_key, | |
1564 | .set_rekey_data = iwlagn_mac_set_rekey_data, | |
1565 | .conf_tx = iwlagn_mac_conf_tx, | |
1566 | .bss_info_changed = iwlagn_bss_info_changed, | |
1567 | .ampdu_action = iwlagn_mac_ampdu_action, | |
1568 | .hw_scan = iwlagn_mac_hw_scan, | |
1569 | .sta_notify = iwlagn_mac_sta_notify, | |
1570 | .sta_add = iwlagn_mac_sta_add, | |
1571 | .sta_remove = iwlagn_mac_sta_remove, | |
1572 | .channel_switch = iwlagn_mac_channel_switch, | |
1573 | .flush = iwlagn_mac_flush, | |
1574 | .tx_last_beacon = iwlagn_mac_tx_last_beacon, | |
1575 | .remain_on_channel = iwlagn_mac_remain_on_channel, | |
1576 | .cancel_remain_on_channel = iwlagn_mac_cancel_remain_on_channel, | |
1577 | .rssi_callback = iwlagn_mac_rssi_callback, | |
1578 | CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd) | |
1579 | CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump) | |
1580 | .tx_sync = iwlagn_mac_tx_sync, | |
1581 | .finish_tx_sync = iwlagn_mac_finish_tx_sync, | |
1582 | .set_tim = iwlagn_mac_set_tim, | |
1583 | }; | |
1584 | ||
1585 | /* This function both allocates and initializes hw and priv. */ | |
1586 | struct ieee80211_hw *iwl_alloc_all(void) | |
1587 | { | |
1588 | struct iwl_priv *priv; | |
1589 | /* mac80211 allocates memory for this device instance, including | |
1590 | * space for this driver's private structure */ | |
1591 | struct ieee80211_hw *hw; | |
1592 | ||
1593 | hw = ieee80211_alloc_hw(sizeof(struct iwl_priv), &iwlagn_hw_ops); | |
1594 | if (!hw) | |
1595 | goto out; | |
1596 | ||
1597 | priv = hw->priv; | |
1598 | priv->hw = hw; | |
1599 | ||
1600 | out: | |
1601 | return hw; | |
1602 | } |