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7335613a WYG |
1 | /****************************************************************************** |
2 | * | |
3 | * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. | |
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" | |
47 | #include "iwl-dev.h" | |
48 | #include "iwl-core.h" | |
49 | #include "iwl-io.h" | |
50 | #include "iwl-agn-calib.h" | |
51 | #include "iwl-agn.h" | |
52 | #include "iwl-shared.h" | |
53 | #include "iwl-bus.h" | |
54 | #include "iwl-trans.h" | |
55 | ||
56 | /***************************************************************************** | |
57 | * | |
58 | * mac80211 entry point functions | |
59 | * | |
60 | *****************************************************************************/ | |
61 | ||
62 | static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = { | |
63 | { | |
64 | .max = 1, | |
65 | .types = BIT(NL80211_IFTYPE_STATION), | |
66 | }, | |
67 | { | |
68 | .max = 1, | |
69 | .types = BIT(NL80211_IFTYPE_AP), | |
70 | }, | |
71 | }; | |
72 | ||
73 | static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = { | |
74 | { | |
75 | .max = 2, | |
76 | .types = BIT(NL80211_IFTYPE_STATION), | |
77 | }, | |
78 | }; | |
79 | ||
80 | static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = { | |
81 | { | |
82 | .max = 1, | |
83 | .types = BIT(NL80211_IFTYPE_STATION), | |
84 | }, | |
85 | { | |
86 | .max = 1, | |
87 | .types = BIT(NL80211_IFTYPE_P2P_GO) | | |
88 | BIT(NL80211_IFTYPE_AP), | |
89 | }, | |
90 | }; | |
91 | ||
92 | static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = { | |
93 | { | |
94 | .max = 2, | |
95 | .types = BIT(NL80211_IFTYPE_STATION), | |
96 | }, | |
97 | { | |
98 | .max = 1, | |
99 | .types = BIT(NL80211_IFTYPE_P2P_CLIENT), | |
100 | }, | |
101 | }; | |
102 | ||
103 | static const struct ieee80211_iface_combination | |
104 | iwlagn_iface_combinations_dualmode[] = { | |
105 | { .num_different_channels = 1, | |
106 | .max_interfaces = 2, | |
107 | .beacon_int_infra_match = true, | |
108 | .limits = iwlagn_sta_ap_limits, | |
109 | .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits), | |
110 | }, | |
111 | { .num_different_channels = 1, | |
112 | .max_interfaces = 2, | |
113 | .limits = iwlagn_2sta_limits, | |
114 | .n_limits = ARRAY_SIZE(iwlagn_2sta_limits), | |
115 | }, | |
116 | }; | |
117 | ||
118 | static const struct ieee80211_iface_combination | |
119 | iwlagn_iface_combinations_p2p[] = { | |
120 | { .num_different_channels = 1, | |
121 | .max_interfaces = 2, | |
122 | .beacon_int_infra_match = true, | |
123 | .limits = iwlagn_p2p_sta_go_limits, | |
124 | .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits), | |
125 | }, | |
126 | { .num_different_channels = 1, | |
127 | .max_interfaces = 2, | |
128 | .limits = iwlagn_p2p_2sta_limits, | |
129 | .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits), | |
130 | }, | |
131 | }; | |
132 | ||
133 | /* | |
134 | * Not a mac80211 entry point function, but it fits in with all the | |
135 | * other mac80211 functions grouped here. | |
136 | */ | |
137 | int iwlagn_mac_setup_register(struct iwl_priv *priv, | |
138 | struct iwlagn_ucode_capabilities *capa) | |
139 | { | |
140 | int ret; | |
141 | struct ieee80211_hw *hw = priv->hw; | |
142 | struct iwl_rxon_context *ctx; | |
143 | ||
144 | hw->rate_control_algorithm = "iwl-agn-rs"; | |
145 | ||
146 | /* Tell mac80211 our characteristics */ | |
147 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
148 | IEEE80211_HW_AMPDU_AGGREGATION | | |
149 | IEEE80211_HW_NEED_DTIM_PERIOD | | |
150 | IEEE80211_HW_SPECTRUM_MGMT | | |
151 | IEEE80211_HW_REPORTS_TX_ACK_STATUS; | |
152 | ||
153 | /* | |
154 | * Including the following line will crash some AP's. This | |
155 | * workaround removes the stimulus which causes the crash until | |
156 | * the AP software can be fixed. | |
157 | hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF; | |
158 | */ | |
159 | ||
160 | hw->flags |= IEEE80211_HW_SUPPORTS_PS | | |
161 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS; | |
162 | ||
163 | if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE) | |
164 | hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | | |
165 | IEEE80211_HW_SUPPORTS_STATIC_SMPS; | |
166 | ||
167 | if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP) | |
168 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; | |
169 | ||
170 | hw->sta_data_size = sizeof(struct iwl_station_priv); | |
171 | hw->vif_data_size = sizeof(struct iwl_vif_priv); | |
172 | ||
173 | for_each_context(priv, ctx) { | |
174 | hw->wiphy->interface_modes |= ctx->interface_modes; | |
175 | hw->wiphy->interface_modes |= ctx->exclusive_interface_modes; | |
176 | } | |
177 | ||
178 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
179 | ||
180 | if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) { | |
181 | hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p; | |
182 | hw->wiphy->n_iface_combinations = | |
183 | ARRAY_SIZE(iwlagn_iface_combinations_p2p); | |
184 | } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { | |
185 | hw->wiphy->iface_combinations = | |
186 | iwlagn_iface_combinations_dualmode; | |
187 | hw->wiphy->n_iface_combinations = | |
188 | ARRAY_SIZE(iwlagn_iface_combinations_dualmode); | |
189 | } | |
190 | ||
191 | hw->wiphy->max_remain_on_channel_duration = 1000; | |
192 | ||
193 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | | |
194 | WIPHY_FLAG_DISABLE_BEACON_HINTS | | |
195 | WIPHY_FLAG_IBSS_RSN; | |
196 | ||
197 | if (trans(priv)->ucode_wowlan.code.len && | |
198 | device_can_wakeup(bus(priv)->dev)) { | |
199 | hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | | |
200 | WIPHY_WOWLAN_DISCONNECT | | |
201 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
202 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
203 | if (!iwlagn_mod_params.sw_crypto) | |
204 | hw->wiphy->wowlan.flags |= | |
205 | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | | |
206 | WIPHY_WOWLAN_GTK_REKEY_FAILURE; | |
207 | ||
208 | hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS; | |
209 | hw->wiphy->wowlan.pattern_min_len = | |
210 | IWLAGN_WOWLAN_MIN_PATTERN_LEN; | |
211 | hw->wiphy->wowlan.pattern_max_len = | |
212 | IWLAGN_WOWLAN_MAX_PATTERN_LEN; | |
213 | } | |
214 | ||
215 | if (iwlagn_mod_params.power_save) | |
216 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
217 | else | |
218 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
219 | ||
220 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; | |
221 | /* we create the 802.11 header and a zero-length SSID element */ | |
222 | hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 2; | |
223 | ||
224 | /* Default value; 4 EDCA QOS priorities */ | |
225 | hw->queues = 4; | |
226 | ||
227 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; | |
228 | ||
229 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) | |
230 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
231 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
232 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) | |
233 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
234 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
235 | ||
236 | iwl_leds_init(priv); | |
237 | ||
238 | ret = ieee80211_register_hw(priv->hw); | |
239 | if (ret) { | |
240 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); | |
241 | return ret; | |
242 | } | |
243 | priv->mac80211_registered = 1; | |
244 | ||
245 | return 0; | |
246 | } | |
247 | ||
248 | static int __iwl_up(struct iwl_priv *priv) | |
249 | { | |
250 | struct iwl_rxon_context *ctx; | |
251 | int ret; | |
252 | ||
253 | lockdep_assert_held(&priv->shrd->mutex); | |
254 | ||
255 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) { | |
256 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); | |
257 | return -EIO; | |
258 | } | |
259 | ||
260 | for_each_context(priv, ctx) { | |
261 | ret = iwlagn_alloc_bcast_station(priv, ctx); | |
262 | if (ret) { | |
263 | iwl_dealloc_bcast_stations(priv); | |
264 | return ret; | |
265 | } | |
266 | } | |
267 | ||
268 | ret = iwlagn_run_init_ucode(priv); | |
269 | if (ret) { | |
270 | IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret); | |
271 | goto error; | |
272 | } | |
273 | ||
274 | ret = iwlagn_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR); | |
275 | if (ret) { | |
276 | IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret); | |
277 | goto error; | |
278 | } | |
279 | ||
280 | ret = iwl_alive_start(priv); | |
281 | if (ret) | |
282 | goto error; | |
283 | return 0; | |
284 | ||
285 | error: | |
286 | set_bit(STATUS_EXIT_PENDING, &priv->shrd->status); | |
287 | __iwl_down(priv); | |
288 | clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status); | |
289 | ||
290 | IWL_ERR(priv, "Unable to initialize device.\n"); | |
291 | return ret; | |
292 | } | |
293 | ||
294 | static int iwlagn_mac_start(struct ieee80211_hw *hw) | |
295 | { | |
296 | struct iwl_priv *priv = hw->priv; | |
297 | int ret; | |
298 | ||
299 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
300 | ||
301 | /* we should be verifying the device is ready to be opened */ | |
302 | mutex_lock(&priv->shrd->mutex); | |
303 | ret = __iwl_up(priv); | |
304 | mutex_unlock(&priv->shrd->mutex); | |
305 | if (ret) | |
306 | return ret; | |
307 | ||
308 | IWL_DEBUG_INFO(priv, "Start UP work done.\n"); | |
309 | ||
310 | /* Now we should be done, and the READY bit should be set. */ | |
311 | if (WARN_ON(!test_bit(STATUS_READY, &priv->shrd->status))) | |
312 | ret = -EIO; | |
313 | ||
314 | iwlagn_led_enable(priv); | |
315 | ||
316 | priv->is_open = 1; | |
317 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
318 | return 0; | |
319 | } | |
320 | ||
321 | static void iwlagn_mac_stop(struct ieee80211_hw *hw) | |
322 | { | |
323 | struct iwl_priv *priv = hw->priv; | |
324 | ||
325 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
326 | ||
327 | if (!priv->is_open) | |
328 | return; | |
329 | ||
330 | priv->is_open = 0; | |
331 | ||
332 | iwl_down(priv); | |
333 | ||
334 | flush_workqueue(priv->shrd->workqueue); | |
335 | ||
336 | /* User space software may expect getting rfkill changes | |
337 | * even if interface is down */ | |
338 | iwl_write32(bus(priv), CSR_INT, 0xFFFFFFFF); | |
339 | iwl_enable_rfkill_int(priv); | |
340 | ||
341 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
342 | } | |
343 | ||
344 | static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw, | |
345 | struct ieee80211_vif *vif, | |
346 | struct cfg80211_gtk_rekey_data *data) | |
347 | { | |
348 | struct iwl_priv *priv = hw->priv; | |
349 | ||
350 | if (iwlagn_mod_params.sw_crypto) | |
351 | return; | |
352 | ||
353 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
354 | mutex_lock(&priv->shrd->mutex); | |
355 | ||
356 | if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif) | |
357 | goto out; | |
358 | ||
359 | memcpy(priv->kek, data->kek, NL80211_KEK_LEN); | |
360 | memcpy(priv->kck, data->kck, NL80211_KCK_LEN); | |
361 | priv->replay_ctr = | |
362 | cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); | |
363 | priv->have_rekey_data = true; | |
364 | ||
365 | out: | |
366 | mutex_unlock(&priv->shrd->mutex); | |
367 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
368 | } | |
369 | ||
370 | #ifdef CONFIG_PM_SLEEP | |
7335613a WYG |
371 | |
372 | static int iwlagn_mac_suspend(struct ieee80211_hw *hw, | |
373 | struct cfg80211_wowlan *wowlan) | |
374 | { | |
375 | struct iwl_priv *priv = hw->priv; | |
7335613a | 376 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
023ca58f | 377 | int ret; |
7335613a WYG |
378 | |
379 | if (WARN_ON(!wowlan)) | |
380 | return -EINVAL; | |
381 | ||
382 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
383 | mutex_lock(&priv->shrd->mutex); | |
384 | ||
385 | /* Don't attempt WoWLAN when not associated, tear down instead. */ | |
386 | if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION || | |
387 | !iwl_is_associated_ctx(ctx)) { | |
388 | ret = 1; | |
389 | goto out; | |
390 | } | |
391 | ||
023ca58f | 392 | ret = iwlagn_suspend(priv, hw, wowlan); |
7335613a WYG |
393 | if (ret) |
394 | goto error; | |
395 | ||
396 | device_set_wakeup_enable(bus(priv)->dev, true); | |
397 | ||
398 | /* Now let the ucode operate on its own */ | |
399 | iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_SET, | |
400 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); | |
401 | ||
402 | goto out; | |
403 | ||
404 | error: | |
405 | priv->shrd->wowlan = false; | |
406 | iwlagn_prepare_restart(priv); | |
407 | ieee80211_restart_hw(priv->hw); | |
408 | out: | |
409 | mutex_unlock(&priv->shrd->mutex); | |
7335613a WYG |
410 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
411 | ||
412 | return ret; | |
413 | } | |
414 | ||
415 | static int iwlagn_mac_resume(struct ieee80211_hw *hw) | |
416 | { | |
417 | struct iwl_priv *priv = hw->priv; | |
418 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
419 | struct ieee80211_vif *vif; | |
420 | unsigned long flags; | |
421 | u32 base, status = 0xffffffff; | |
422 | int ret = -EIO; | |
423 | ||
424 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
425 | mutex_lock(&priv->shrd->mutex); | |
426 | ||
427 | iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_CLR, | |
428 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); | |
429 | ||
430 | base = priv->device_pointers.error_event_table; | |
431 | if (iwlagn_hw_valid_rtc_data_addr(base)) { | |
432 | spin_lock_irqsave(&bus(priv)->reg_lock, flags); | |
433 | ret = iwl_grab_nic_access_silent(bus(priv)); | |
434 | if (ret == 0) { | |
435 | iwl_write32(bus(priv), HBUS_TARG_MEM_RADDR, base); | |
436 | status = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT); | |
437 | iwl_release_nic_access(bus(priv)); | |
438 | } | |
439 | spin_unlock_irqrestore(&bus(priv)->reg_lock, flags); | |
440 | ||
441 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
442 | if (ret == 0) { | |
443 | struct iwl_trans *trans = trans(priv); | |
444 | if (!priv->wowlan_sram) | |
445 | priv->wowlan_sram = | |
446 | kzalloc(trans->ucode_wowlan.data.len, | |
447 | GFP_KERNEL); | |
448 | ||
449 | if (priv->wowlan_sram) | |
450 | _iwl_read_targ_mem_words( | |
451 | bus(priv), 0x800000, priv->wowlan_sram, | |
452 | trans->ucode_wowlan.data.len / 4); | |
453 | } | |
454 | #endif | |
455 | } | |
456 | ||
457 | /* we'll clear ctx->vif during iwlagn_prepare_restart() */ | |
458 | vif = ctx->vif; | |
459 | ||
460 | priv->shrd->wowlan = false; | |
461 | ||
462 | device_set_wakeup_enable(bus(priv)->dev, false); | |
463 | ||
464 | iwlagn_prepare_restart(priv); | |
465 | ||
466 | memset((void *)&ctx->active, 0, sizeof(ctx->active)); | |
467 | iwl_connection_init_rx_config(priv, ctx); | |
468 | iwlagn_set_rxon_chain(priv, ctx); | |
469 | ||
470 | mutex_unlock(&priv->shrd->mutex); | |
471 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
472 | ||
473 | ieee80211_resume_disconnect(vif); | |
474 | ||
475 | return 1; | |
476 | } | |
477 | ||
478 | #endif | |
479 | ||
480 | static void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | |
481 | { | |
482 | struct iwl_priv *priv = hw->priv; | |
483 | ||
484 | IWL_DEBUG_MACDUMP(priv, "enter\n"); | |
485 | ||
486 | IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, | |
487 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); | |
488 | ||
489 | if (iwlagn_tx_skb(priv, skb)) | |
490 | dev_kfree_skb_any(skb); | |
491 | ||
492 | IWL_DEBUG_MACDUMP(priv, "leave\n"); | |
493 | } | |
494 | ||
495 | static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw, | |
496 | struct ieee80211_vif *vif, | |
497 | struct ieee80211_key_conf *keyconf, | |
498 | struct ieee80211_sta *sta, | |
499 | u32 iv32, u16 *phase1key) | |
500 | { | |
501 | struct iwl_priv *priv = hw->priv; | |
502 | ||
503 | iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key); | |
504 | } | |
505 | ||
506 | static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, | |
507 | struct ieee80211_vif *vif, | |
508 | struct ieee80211_sta *sta, | |
509 | struct ieee80211_key_conf *key) | |
510 | { | |
511 | struct iwl_priv *priv = hw->priv; | |
512 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
513 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
514 | int ret; | |
515 | bool is_default_wep_key = false; | |
516 | ||
517 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
518 | ||
519 | if (iwlagn_mod_params.sw_crypto) { | |
520 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); | |
521 | return -EOPNOTSUPP; | |
522 | } | |
523 | ||
524 | /* | |
525 | * We could program these keys into the hardware as well, but we | |
526 | * don't expect much multicast traffic in IBSS and having keys | |
527 | * for more stations is probably more useful. | |
528 | * | |
529 | * Mark key TX-only and return 0. | |
530 | */ | |
531 | if (vif->type == NL80211_IFTYPE_ADHOC && | |
532 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { | |
533 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
534 | return 0; | |
535 | } | |
536 | ||
537 | /* If they key was TX-only, accept deletion */ | |
538 | if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET) | |
539 | return 0; | |
540 | ||
541 | mutex_lock(&priv->shrd->mutex); | |
542 | iwl_scan_cancel_timeout(priv, 100); | |
543 | ||
544 | BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT); | |
545 | ||
546 | /* | |
547 | * If we are getting WEP group key and we didn't receive any key mapping | |
548 | * so far, we are in legacy wep mode (group key only), otherwise we are | |
549 | * in 1X mode. | |
550 | * In legacy wep mode, we use another host command to the uCode. | |
551 | */ | |
552 | if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || | |
553 | key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) { | |
554 | if (cmd == SET_KEY) | |
555 | is_default_wep_key = !ctx->key_mapping_keys; | |
556 | else | |
557 | is_default_wep_key = | |
558 | key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT; | |
559 | } | |
560 | ||
561 | ||
562 | switch (cmd) { | |
563 | case SET_KEY: | |
564 | if (is_default_wep_key) { | |
565 | ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key); | |
566 | break; | |
567 | } | |
568 | ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta); | |
569 | if (ret) { | |
570 | /* | |
571 | * can't add key for RX, but we don't need it | |
572 | * in the device for TX so still return 0 | |
573 | */ | |
574 | ret = 0; | |
575 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
576 | } | |
577 | ||
578 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); | |
579 | break; | |
580 | case DISABLE_KEY: | |
581 | if (is_default_wep_key) | |
582 | ret = iwl_remove_default_wep_key(priv, ctx, key); | |
583 | else | |
584 | ret = iwl_remove_dynamic_key(priv, ctx, key, sta); | |
585 | ||
586 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); | |
587 | break; | |
588 | default: | |
589 | ret = -EINVAL; | |
590 | } | |
591 | ||
592 | mutex_unlock(&priv->shrd->mutex); | |
593 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
594 | ||
595 | return ret; | |
596 | } | |
597 | ||
598 | static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, | |
599 | struct ieee80211_vif *vif, | |
600 | enum ieee80211_ampdu_mlme_action action, | |
601 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, | |
602 | u8 buf_size) | |
603 | { | |
604 | struct iwl_priv *priv = hw->priv; | |
605 | int ret = -EINVAL; | |
606 | struct iwl_station_priv *sta_priv = (void *) sta->drv_priv; | |
607 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); | |
608 | ||
609 | IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", | |
610 | sta->addr, tid); | |
611 | ||
612 | if (!(priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE)) | |
613 | return -EACCES; | |
614 | ||
615 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
616 | mutex_lock(&priv->shrd->mutex); | |
617 | ||
618 | switch (action) { | |
619 | case IEEE80211_AMPDU_RX_START: | |
620 | IWL_DEBUG_HT(priv, "start Rx\n"); | |
621 | ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn); | |
622 | break; | |
623 | case IEEE80211_AMPDU_RX_STOP: | |
624 | IWL_DEBUG_HT(priv, "stop Rx\n"); | |
625 | ret = iwl_sta_rx_agg_stop(priv, sta, tid); | |
626 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) | |
627 | ret = 0; | |
628 | break; | |
629 | case IEEE80211_AMPDU_TX_START: | |
630 | IWL_DEBUG_HT(priv, "start Tx\n"); | |
631 | ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn); | |
632 | break; | |
633 | case IEEE80211_AMPDU_TX_STOP: | |
634 | IWL_DEBUG_HT(priv, "stop Tx\n"); | |
635 | ret = iwlagn_tx_agg_stop(priv, vif, sta, tid); | |
636 | if ((ret == 0) && (priv->agg_tids_count > 0)) { | |
637 | priv->agg_tids_count--; | |
638 | IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", | |
639 | priv->agg_tids_count); | |
640 | } | |
641 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) | |
642 | ret = 0; | |
643 | if (!priv->agg_tids_count && priv->cfg->ht_params && | |
644 | priv->cfg->ht_params->use_rts_for_aggregation) { | |
645 | /* | |
646 | * switch off RTS/CTS if it was previously enabled | |
647 | */ | |
648 | sta_priv->lq_sta.lq.general_params.flags &= | |
649 | ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; | |
650 | iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), | |
651 | &sta_priv->lq_sta.lq, CMD_ASYNC, false); | |
652 | } | |
653 | break; | |
654 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
655 | buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF); | |
656 | ||
657 | iwl_trans_tx_agg_setup(trans(priv), ctx->ctxid, iwl_sta_id(sta), | |
658 | tid, buf_size); | |
659 | ||
660 | /* | |
661 | * If the limit is 0, then it wasn't initialised yet, | |
662 | * use the default. We can do that since we take the | |
663 | * minimum below, and we don't want to go above our | |
664 | * default due to hardware restrictions. | |
665 | */ | |
666 | if (sta_priv->max_agg_bufsize == 0) | |
667 | sta_priv->max_agg_bufsize = | |
668 | LINK_QUAL_AGG_FRAME_LIMIT_DEF; | |
669 | ||
670 | /* | |
671 | * Even though in theory the peer could have different | |
672 | * aggregation reorder buffer sizes for different sessions, | |
673 | * our ucode doesn't allow for that and has a global limit | |
674 | * for each station. Therefore, use the minimum of all the | |
675 | * aggregation sessions and our default value. | |
676 | */ | |
677 | sta_priv->max_agg_bufsize = | |
678 | min(sta_priv->max_agg_bufsize, buf_size); | |
679 | ||
680 | if (priv->cfg->ht_params && | |
681 | priv->cfg->ht_params->use_rts_for_aggregation) { | |
682 | /* | |
683 | * switch to RTS/CTS if it is the prefer protection | |
684 | * method for HT traffic | |
685 | */ | |
686 | ||
687 | sta_priv->lq_sta.lq.general_params.flags |= | |
688 | LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; | |
689 | } | |
690 | priv->agg_tids_count++; | |
691 | IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", | |
692 | priv->agg_tids_count); | |
693 | ||
694 | sta_priv->lq_sta.lq.agg_params.agg_frame_cnt_limit = | |
695 | sta_priv->max_agg_bufsize; | |
696 | ||
697 | iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), | |
698 | &sta_priv->lq_sta.lq, CMD_ASYNC, false); | |
699 | ||
700 | IWL_INFO(priv, "Tx aggregation enabled on ra = %pM tid = %d\n", | |
701 | sta->addr, tid); | |
702 | ret = 0; | |
703 | break; | |
704 | } | |
705 | mutex_unlock(&priv->shrd->mutex); | |
706 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
707 | return ret; | |
708 | } | |
709 | ||
710 | static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, | |
711 | struct ieee80211_vif *vif, | |
712 | struct ieee80211_sta *sta) | |
713 | { | |
714 | struct iwl_priv *priv = hw->priv; | |
715 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
716 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
717 | bool is_ap = vif->type == NL80211_IFTYPE_STATION; | |
718 | int ret = 0; | |
719 | u8 sta_id; | |
720 | ||
721 | IWL_DEBUG_MAC80211(priv, "received request to add station %pM\n", | |
722 | sta->addr); | |
723 | mutex_lock(&priv->shrd->mutex); | |
724 | IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", | |
725 | sta->addr); | |
726 | sta_priv->sta_id = IWL_INVALID_STATION; | |
727 | ||
728 | atomic_set(&sta_priv->pending_frames, 0); | |
729 | if (vif->type == NL80211_IFTYPE_AP) | |
730 | sta_priv->client = true; | |
731 | ||
732 | ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr, | |
733 | is_ap, sta, &sta_id); | |
734 | if (ret) { | |
735 | IWL_ERR(priv, "Unable to add station %pM (%d)\n", | |
736 | sta->addr, ret); | |
737 | /* Should we return success if return code is EEXIST ? */ | |
738 | goto out; | |
739 | } | |
740 | ||
741 | sta_priv->sta_id = sta_id; | |
742 | ||
743 | /* Initialize rate scaling */ | |
744 | IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n", | |
745 | sta->addr); | |
746 | iwl_rs_rate_init(priv, sta, sta_id); | |
747 | out: | |
748 | mutex_unlock(&priv->shrd->mutex); | |
749 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
750 | ||
751 | return ret; | |
752 | } | |
753 | ||
754 | static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, | |
755 | struct ieee80211_channel_switch *ch_switch) | |
756 | { | |
757 | struct iwl_priv *priv = hw->priv; | |
758 | const struct iwl_channel_info *ch_info; | |
759 | struct ieee80211_conf *conf = &hw->conf; | |
760 | struct ieee80211_channel *channel = ch_switch->channel; | |
761 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; | |
762 | /* | |
763 | * MULTI-FIXME | |
764 | * When we add support for multiple interfaces, we need to | |
765 | * revisit this. The channel switch command in the device | |
766 | * only affects the BSS context, but what does that really | |
767 | * mean? And what if we get a CSA on the second interface? | |
768 | * This needs a lot of work. | |
769 | */ | |
770 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
771 | u16 ch; | |
772 | ||
773 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
774 | ||
775 | mutex_lock(&priv->shrd->mutex); | |
776 | ||
777 | if (iwl_is_rfkill(priv->shrd)) | |
778 | goto out; | |
779 | ||
780 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) || | |
781 | test_bit(STATUS_SCANNING, &priv->shrd->status) || | |
782 | test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status)) | |
783 | goto out; | |
784 | ||
785 | if (!iwl_is_associated_ctx(ctx)) | |
786 | goto out; | |
787 | ||
788 | if (!priv->cfg->lib->set_channel_switch) | |
789 | goto out; | |
790 | ||
791 | ch = channel->hw_value; | |
792 | if (le16_to_cpu(ctx->active.channel) == ch) | |
793 | goto out; | |
794 | ||
795 | ch_info = iwl_get_channel_info(priv, channel->band, ch); | |
796 | if (!is_channel_valid(ch_info)) { | |
797 | IWL_DEBUG_MAC80211(priv, "invalid channel\n"); | |
798 | goto out; | |
799 | } | |
800 | ||
801 | spin_lock_irq(&priv->shrd->lock); | |
802 | ||
803 | priv->current_ht_config.smps = conf->smps_mode; | |
804 | ||
805 | /* Configure HT40 channels */ | |
806 | ctx->ht.enabled = conf_is_ht(conf); | |
807 | if (ctx->ht.enabled) { | |
808 | if (conf_is_ht40_minus(conf)) { | |
809 | ctx->ht.extension_chan_offset = | |
810 | IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
811 | ctx->ht.is_40mhz = true; | |
812 | } else if (conf_is_ht40_plus(conf)) { | |
813 | ctx->ht.extension_chan_offset = | |
814 | IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
815 | ctx->ht.is_40mhz = true; | |
816 | } else { | |
817 | ctx->ht.extension_chan_offset = | |
818 | IEEE80211_HT_PARAM_CHA_SEC_NONE; | |
819 | ctx->ht.is_40mhz = false; | |
820 | } | |
821 | } else | |
822 | ctx->ht.is_40mhz = false; | |
823 | ||
824 | if ((le16_to_cpu(ctx->staging.channel) != ch)) | |
825 | ctx->staging.flags = 0; | |
826 | ||
827 | iwl_set_rxon_channel(priv, channel, ctx); | |
828 | iwl_set_rxon_ht(priv, ht_conf); | |
829 | iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif); | |
830 | ||
831 | spin_unlock_irq(&priv->shrd->lock); | |
832 | ||
833 | iwl_set_rate(priv); | |
834 | /* | |
835 | * at this point, staging_rxon has the | |
836 | * configuration for channel switch | |
837 | */ | |
838 | set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status); | |
839 | priv->switch_channel = cpu_to_le16(ch); | |
840 | if (priv->cfg->lib->set_channel_switch(priv, ch_switch)) { | |
841 | clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status); | |
842 | priv->switch_channel = 0; | |
843 | ieee80211_chswitch_done(ctx->vif, false); | |
844 | } | |
845 | ||
846 | out: | |
847 | mutex_unlock(&priv->shrd->mutex); | |
848 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
849 | } | |
850 | ||
851 | static void iwlagn_configure_filter(struct ieee80211_hw *hw, | |
852 | unsigned int changed_flags, | |
853 | unsigned int *total_flags, | |
854 | u64 multicast) | |
855 | { | |
856 | struct iwl_priv *priv = hw->priv; | |
857 | __le32 filter_or = 0, filter_nand = 0; | |
858 | struct iwl_rxon_context *ctx; | |
859 | ||
860 | #define CHK(test, flag) do { \ | |
861 | if (*total_flags & (test)) \ | |
862 | filter_or |= (flag); \ | |
863 | else \ | |
864 | filter_nand |= (flag); \ | |
865 | } while (0) | |
866 | ||
867 | IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", | |
868 | changed_flags, *total_flags); | |
869 | ||
870 | CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); | |
871 | /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */ | |
872 | CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK); | |
873 | CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); | |
874 | ||
875 | #undef CHK | |
876 | ||
877 | mutex_lock(&priv->shrd->mutex); | |
878 | ||
879 | for_each_context(priv, ctx) { | |
880 | ctx->staging.filter_flags &= ~filter_nand; | |
881 | ctx->staging.filter_flags |= filter_or; | |
882 | ||
883 | /* | |
884 | * Not committing directly because hardware can perform a scan, | |
885 | * but we'll eventually commit the filter flags change anyway. | |
886 | */ | |
887 | } | |
888 | ||
889 | mutex_unlock(&priv->shrd->mutex); | |
890 | ||
891 | /* | |
892 | * Receiving all multicast frames is always enabled by the | |
893 | * default flags setup in iwl_connection_init_rx_config() | |
894 | * since we currently do not support programming multicast | |
895 | * filters into the device. | |
896 | */ | |
897 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | | |
898 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; | |
899 | } | |
900 | ||
901 | static void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop) | |
902 | { | |
903 | struct iwl_priv *priv = hw->priv; | |
904 | ||
905 | mutex_lock(&priv->shrd->mutex); | |
906 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
907 | ||
908 | if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) { | |
909 | IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n"); | |
910 | goto done; | |
911 | } | |
912 | if (iwl_is_rfkill(priv->shrd)) { | |
913 | IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n"); | |
914 | goto done; | |
915 | } | |
916 | ||
917 | /* | |
918 | * mac80211 will not push any more frames for transmit | |
919 | * until the flush is completed | |
920 | */ | |
921 | if (drop) { | |
922 | IWL_DEBUG_MAC80211(priv, "send flush command\n"); | |
923 | if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) { | |
924 | IWL_ERR(priv, "flush request fail\n"); | |
925 | goto done; | |
926 | } | |
927 | } | |
928 | IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n"); | |
929 | iwl_trans_wait_tx_queue_empty(trans(priv)); | |
930 | done: | |
931 | mutex_unlock(&priv->shrd->mutex); | |
932 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
933 | } | |
934 | ||
935 | static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw, | |
936 | struct ieee80211_channel *channel, | |
937 | enum nl80211_channel_type channel_type, | |
938 | int duration) | |
939 | { | |
940 | struct iwl_priv *priv = hw->priv; | |
941 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN]; | |
942 | int err = 0; | |
943 | ||
944 | if (!(priv->shrd->valid_contexts & BIT(IWL_RXON_CTX_PAN))) | |
945 | return -EOPNOTSUPP; | |
946 | ||
947 | if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT))) | |
948 | return -EOPNOTSUPP; | |
949 | ||
950 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
951 | mutex_lock(&priv->shrd->mutex); | |
952 | ||
953 | if (test_bit(STATUS_SCAN_HW, &priv->shrd->status)) { | |
954 | err = -EBUSY; | |
955 | goto out; | |
956 | } | |
957 | ||
958 | priv->hw_roc_channel = channel; | |
959 | priv->hw_roc_chantype = channel_type; | |
3ddf6bef JB |
960 | /* convert from ms to TU */ |
961 | priv->hw_roc_duration = DIV_ROUND_UP(1000 * duration, 1024); | |
7335613a WYG |
962 | priv->hw_roc_start_notified = false; |
963 | cancel_delayed_work(&priv->hw_roc_disable_work); | |
964 | ||
965 | if (!ctx->is_active) { | |
a69cd040 JB |
966 | static const struct iwl_qos_info default_qos_data = { |
967 | .def_qos_parm = { | |
968 | .ac[0] = { | |
969 | .cw_min = cpu_to_le16(3), | |
970 | .cw_max = cpu_to_le16(7), | |
971 | .aifsn = 2, | |
972 | .edca_txop = cpu_to_le16(1504), | |
973 | }, | |
974 | .ac[1] = { | |
975 | .cw_min = cpu_to_le16(7), | |
976 | .cw_max = cpu_to_le16(15), | |
977 | .aifsn = 2, | |
978 | .edca_txop = cpu_to_le16(3008), | |
979 | }, | |
980 | .ac[2] = { | |
981 | .cw_min = cpu_to_le16(15), | |
982 | .cw_max = cpu_to_le16(1023), | |
983 | .aifsn = 3, | |
984 | }, | |
985 | .ac[3] = { | |
986 | .cw_min = cpu_to_le16(15), | |
987 | .cw_max = cpu_to_le16(1023), | |
988 | .aifsn = 7, | |
989 | }, | |
990 | }, | |
991 | }; | |
992 | ||
7335613a | 993 | ctx->is_active = true; |
a69cd040 | 994 | ctx->qos_data = default_qos_data; |
7335613a WYG |
995 | ctx->staging.dev_type = RXON_DEV_TYPE_P2P; |
996 | memcpy(ctx->staging.node_addr, | |
997 | priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, | |
998 | ETH_ALEN); | |
999 | memcpy(ctx->staging.bssid_addr, | |
1000 | priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, | |
1001 | ETH_ALEN); | |
1002 | err = iwlagn_commit_rxon(priv, ctx); | |
1003 | if (err) | |
1004 | goto out; | |
1005 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK | | |
1006 | RXON_FILTER_PROMISC_MSK | | |
1007 | RXON_FILTER_CTL2HOST_MSK; | |
1008 | ||
1009 | err = iwlagn_commit_rxon(priv, ctx); | |
1010 | if (err) { | |
1011 | iwlagn_disable_roc(priv); | |
1012 | goto out; | |
1013 | } | |
1014 | priv->hw_roc_setup = true; | |
1015 | } | |
1016 | ||
1017 | err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band); | |
1018 | if (err) | |
1019 | iwlagn_disable_roc(priv); | |
1020 | ||
1021 | out: | |
1022 | mutex_unlock(&priv->shrd->mutex); | |
1023 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1024 | ||
1025 | return err; | |
1026 | } | |
1027 | ||
1028 | static int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw *hw) | |
1029 | { | |
1030 | struct iwl_priv *priv = hw->priv; | |
1031 | ||
1032 | if (!(priv->shrd->valid_contexts & BIT(IWL_RXON_CTX_PAN))) | |
1033 | return -EOPNOTSUPP; | |
1034 | ||
1035 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1036 | mutex_lock(&priv->shrd->mutex); | |
1037 | iwl_scan_cancel_timeout(priv, priv->hw_roc_duration); | |
1038 | iwlagn_disable_roc(priv); | |
1039 | mutex_unlock(&priv->shrd->mutex); | |
1040 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1041 | ||
1042 | return 0; | |
1043 | } | |
1044 | ||
1045 | static int iwlagn_mac_tx_sync(struct ieee80211_hw *hw, | |
1046 | struct ieee80211_vif *vif, | |
1047 | const u8 *bssid, | |
1048 | enum ieee80211_tx_sync_type type) | |
1049 | { | |
1050 | struct iwl_priv *priv = hw->priv; | |
1051 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
1052 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
1053 | int ret; | |
1054 | u8 sta_id; | |
1055 | ||
1056 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1057 | mutex_lock(&priv->shrd->mutex); | |
1058 | ||
1059 | if (iwl_is_associated_ctx(ctx)) { | |
1060 | ret = 0; | |
1061 | goto out; | |
1062 | } | |
1063 | ||
1064 | if (ctx->preauth_bssid || test_bit(STATUS_SCAN_HW, | |
1065 | &priv->shrd->status)) { | |
1066 | ret = -EBUSY; | |
1067 | goto out; | |
1068 | } | |
1069 | ||
1070 | ret = iwl_add_station_common(priv, ctx, bssid, true, NULL, &sta_id); | |
1071 | if (ret) | |
1072 | goto out; | |
1073 | ||
1074 | if (WARN_ON(sta_id != ctx->ap_sta_id)) { | |
1075 | ret = -EIO; | |
1076 | goto out_remove_sta; | |
1077 | } | |
1078 | ||
1079 | memcpy(ctx->bssid, bssid, ETH_ALEN); | |
1080 | ctx->preauth_bssid = true; | |
1081 | ||
1082 | ret = iwlagn_commit_rxon(priv, ctx); | |
1083 | ||
1084 | if (ret == 0) | |
1085 | goto out; | |
1086 | ||
1087 | out_remove_sta: | |
1088 | iwl_remove_station(priv, sta_id, bssid); | |
1089 | out: | |
1090 | mutex_unlock(&priv->shrd->mutex); | |
1091 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1092 | ||
1093 | return ret; | |
1094 | } | |
1095 | ||
1096 | static void iwlagn_mac_finish_tx_sync(struct ieee80211_hw *hw, | |
1097 | struct ieee80211_vif *vif, | |
1098 | const u8 *bssid, | |
1099 | enum ieee80211_tx_sync_type type) | |
1100 | { | |
1101 | struct iwl_priv *priv = hw->priv; | |
1102 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
1103 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
1104 | ||
1105 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1106 | mutex_lock(&priv->shrd->mutex); | |
1107 | ||
1108 | if (iwl_is_associated_ctx(ctx)) | |
1109 | goto out; | |
1110 | ||
1111 | iwl_remove_station(priv, ctx->ap_sta_id, bssid); | |
1112 | ctx->preauth_bssid = false; | |
1113 | /* no need to commit */ | |
1114 | out: | |
1115 | mutex_unlock(&priv->shrd->mutex); | |
1116 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1117 | } | |
1118 | ||
1119 | static void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw, | |
1120 | enum ieee80211_rssi_event rssi_event) | |
1121 | { | |
1122 | struct iwl_priv *priv = hw->priv; | |
1123 | ||
1124 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1125 | mutex_lock(&priv->shrd->mutex); | |
1126 | ||
1127 | if (priv->cfg->bt_params && | |
1128 | priv->cfg->bt_params->advanced_bt_coexist) { | |
1129 | if (rssi_event == RSSI_EVENT_LOW) | |
1130 | priv->bt_enable_pspoll = true; | |
1131 | else if (rssi_event == RSSI_EVENT_HIGH) | |
1132 | priv->bt_enable_pspoll = false; | |
1133 | ||
1134 | iwlagn_send_advance_bt_config(priv); | |
1135 | } else { | |
1136 | IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled," | |
1137 | "ignoring RSSI callback\n"); | |
1138 | } | |
1139 | ||
1140 | mutex_unlock(&priv->shrd->mutex); | |
1141 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1142 | } | |
1143 | ||
1144 | static int iwlagn_mac_set_tim(struct ieee80211_hw *hw, | |
1145 | struct ieee80211_sta *sta, bool set) | |
1146 | { | |
1147 | struct iwl_priv *priv = hw->priv; | |
1148 | ||
1149 | queue_work(priv->shrd->workqueue, &priv->beacon_update); | |
1150 | ||
1151 | return 0; | |
1152 | } | |
1153 | ||
0b7a4c78 WYG |
1154 | static int iwlagn_mac_conf_tx(struct ieee80211_hw *hw, |
1155 | struct ieee80211_vif *vif, u16 queue, | |
1156 | const struct ieee80211_tx_queue_params *params) | |
1157 | { | |
1158 | struct iwl_priv *priv = hw->priv; | |
1159 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
1160 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
1161 | unsigned long flags; | |
1162 | int q; | |
1163 | ||
1164 | if (WARN_ON(!ctx)) | |
1165 | return -EINVAL; | |
1166 | ||
1167 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1168 | ||
1169 | if (!iwl_is_ready_rf(priv->shrd)) { | |
1170 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); | |
1171 | return -EIO; | |
1172 | } | |
1173 | ||
1174 | if (queue >= AC_NUM) { | |
1175 | IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); | |
1176 | return 0; | |
1177 | } | |
1178 | ||
1179 | q = AC_NUM - 1 - queue; | |
1180 | ||
1181 | spin_lock_irqsave(&priv->shrd->lock, flags); | |
1182 | ||
1183 | ctx->qos_data.def_qos_parm.ac[q].cw_min = | |
1184 | cpu_to_le16(params->cw_min); | |
1185 | ctx->qos_data.def_qos_parm.ac[q].cw_max = | |
1186 | cpu_to_le16(params->cw_max); | |
1187 | ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
1188 | ctx->qos_data.def_qos_parm.ac[q].edca_txop = | |
1189 | cpu_to_le16((params->txop * 32)); | |
1190 | ||
1191 | ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
1192 | ||
1193 | spin_unlock_irqrestore(&priv->shrd->lock, flags); | |
1194 | ||
1195 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1196 | return 0; | |
1197 | } | |
1198 | ||
1199 | static int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw) | |
1200 | { | |
1201 | struct iwl_priv *priv = hw->priv; | |
1202 | ||
1203 | return priv->ibss_manager == IWL_IBSS_MANAGER; | |
1204 | } | |
1205 | ||
1206 | static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx) | |
1207 | { | |
1208 | iwl_connection_init_rx_config(priv, ctx); | |
1209 | ||
1210 | iwlagn_set_rxon_chain(priv, ctx); | |
1211 | ||
1212 | return iwlagn_commit_rxon(priv, ctx); | |
1213 | } | |
1214 | ||
1215 | static int iwl_setup_interface(struct iwl_priv *priv, | |
1216 | struct iwl_rxon_context *ctx) | |
1217 | { | |
1218 | struct ieee80211_vif *vif = ctx->vif; | |
1219 | int err; | |
1220 | ||
1221 | lockdep_assert_held(&priv->shrd->mutex); | |
1222 | ||
1223 | /* | |
1224 | * This variable will be correct only when there's just | |
1225 | * a single context, but all code using it is for hardware | |
1226 | * that supports only one context. | |
1227 | */ | |
1228 | priv->iw_mode = vif->type; | |
1229 | ||
1230 | ctx->is_active = true; | |
1231 | ||
1232 | err = iwl_set_mode(priv, ctx); | |
1233 | if (err) { | |
1234 | if (!ctx->always_active) | |
1235 | ctx->is_active = false; | |
1236 | return err; | |
1237 | } | |
1238 | ||
1239 | if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist && | |
1240 | vif->type == NL80211_IFTYPE_ADHOC) { | |
1241 | /* | |
1242 | * pretend to have high BT traffic as long as we | |
1243 | * are operating in IBSS mode, as this will cause | |
1244 | * the rate scaling etc. to behave as intended. | |
1245 | */ | |
1246 | priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH; | |
1247 | } | |
1248 | ||
1249 | return 0; | |
1250 | } | |
1251 | ||
1252 | static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, | |
1253 | struct ieee80211_vif *vif) | |
1254 | { | |
1255 | struct iwl_priv *priv = hw->priv; | |
1256 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
1257 | struct iwl_rxon_context *tmp, *ctx = NULL; | |
1258 | int err; | |
1259 | enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif); | |
1260 | ||
1261 | IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n", | |
1262 | viftype, vif->addr); | |
1263 | ||
1264 | cancel_delayed_work_sync(&priv->hw_roc_disable_work); | |
1265 | ||
1266 | mutex_lock(&priv->shrd->mutex); | |
1267 | ||
1268 | iwlagn_disable_roc(priv); | |
1269 | ||
1270 | if (!iwl_is_ready_rf(priv->shrd)) { | |
1271 | IWL_WARN(priv, "Try to add interface when device not ready\n"); | |
1272 | err = -EINVAL; | |
1273 | goto out; | |
1274 | } | |
1275 | ||
1276 | for_each_context(priv, tmp) { | |
1277 | u32 possible_modes = | |
1278 | tmp->interface_modes | tmp->exclusive_interface_modes; | |
1279 | ||
1280 | if (tmp->vif) { | |
1281 | /* check if this busy context is exclusive */ | |
1282 | if (tmp->exclusive_interface_modes & | |
1283 | BIT(tmp->vif->type)) { | |
1284 | err = -EINVAL; | |
1285 | goto out; | |
1286 | } | |
1287 | continue; | |
1288 | } | |
1289 | ||
1290 | if (!(possible_modes & BIT(viftype))) | |
1291 | continue; | |
1292 | ||
1293 | /* have maybe usable context w/o interface */ | |
1294 | ctx = tmp; | |
1295 | break; | |
1296 | } | |
1297 | ||
1298 | if (!ctx) { | |
1299 | err = -EOPNOTSUPP; | |
1300 | goto out; | |
1301 | } | |
1302 | ||
1303 | vif_priv->ctx = ctx; | |
1304 | ctx->vif = vif; | |
1305 | ||
1306 | err = iwl_setup_interface(priv, ctx); | |
1307 | if (!err) | |
1308 | goto out; | |
1309 | ||
1310 | ctx->vif = NULL; | |
1311 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
1312 | out: | |
1313 | mutex_unlock(&priv->shrd->mutex); | |
1314 | ||
1315 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1316 | return err; | |
1317 | } | |
1318 | ||
1319 | static void iwl_teardown_interface(struct iwl_priv *priv, | |
1320 | struct ieee80211_vif *vif, | |
1321 | bool mode_change) | |
1322 | { | |
1323 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); | |
1324 | ||
1325 | lockdep_assert_held(&priv->shrd->mutex); | |
1326 | ||
1327 | if (priv->scan_vif == vif) { | |
1328 | iwl_scan_cancel_timeout(priv, 200); | |
1329 | iwl_force_scan_end(priv); | |
1330 | } | |
1331 | ||
1332 | if (!mode_change) { | |
1333 | iwl_set_mode(priv, ctx); | |
1334 | if (!ctx->always_active) | |
1335 | ctx->is_active = false; | |
1336 | } | |
1337 | ||
1338 | /* | |
1339 | * When removing the IBSS interface, overwrite the | |
1340 | * BT traffic load with the stored one from the last | |
1341 | * notification, if any. If this is a device that | |
1342 | * doesn't implement this, this has no effect since | |
1343 | * both values are the same and zero. | |
1344 | */ | |
1345 | if (vif->type == NL80211_IFTYPE_ADHOC) | |
1346 | priv->bt_traffic_load = priv->last_bt_traffic_load; | |
1347 | } | |
1348 | ||
1349 | static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw, | |
1350 | struct ieee80211_vif *vif) | |
1351 | { | |
1352 | struct iwl_priv *priv = hw->priv; | |
1353 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); | |
1354 | ||
1355 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1356 | ||
1357 | mutex_lock(&priv->shrd->mutex); | |
1358 | ||
1359 | if (WARN_ON(ctx->vif != vif)) { | |
1360 | struct iwl_rxon_context *tmp; | |
1361 | IWL_ERR(priv, "ctx->vif = %p, vif = %p\n", ctx->vif, vif); | |
1362 | for_each_context(priv, tmp) | |
1363 | IWL_ERR(priv, "\tID = %d:\tctx = %p\tctx->vif = %p\n", | |
1364 | tmp->ctxid, tmp, tmp->vif); | |
1365 | } | |
1366 | ctx->vif = NULL; | |
1367 | ||
1368 | iwl_teardown_interface(priv, vif, false); | |
1369 | ||
1370 | mutex_unlock(&priv->shrd->mutex); | |
1371 | ||
1372 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1373 | ||
1374 | } | |
1375 | ||
1376 | static int iwlagn_mac_change_interface(struct ieee80211_hw *hw, | |
1377 | struct ieee80211_vif *vif, | |
1378 | enum nl80211_iftype newtype, bool newp2p) | |
1379 | { | |
1380 | struct iwl_priv *priv = hw->priv; | |
1381 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); | |
1382 | struct iwl_rxon_context *bss_ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
1383 | struct iwl_rxon_context *tmp; | |
1384 | enum nl80211_iftype newviftype = newtype; | |
1385 | u32 interface_modes; | |
1386 | int err; | |
1387 | ||
1388 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1389 | ||
1390 | newtype = ieee80211_iftype_p2p(newtype, newp2p); | |
1391 | ||
1392 | mutex_lock(&priv->shrd->mutex); | |
1393 | ||
1394 | if (!ctx->vif || !iwl_is_ready_rf(priv->shrd)) { | |
1395 | /* | |
1396 | * Huh? But wait ... this can maybe happen when | |
1397 | * we're in the middle of a firmware restart! | |
1398 | */ | |
1399 | err = -EBUSY; | |
1400 | goto out; | |
1401 | } | |
1402 | ||
1403 | interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes; | |
1404 | ||
1405 | if (!(interface_modes & BIT(newtype))) { | |
1406 | err = -EBUSY; | |
1407 | goto out; | |
1408 | } | |
1409 | ||
1410 | /* | |
1411 | * Refuse a change that should be done by moving from the PAN | |
1412 | * context to the BSS context instead, if the BSS context is | |
1413 | * available and can support the new interface type. | |
1414 | */ | |
1415 | if (ctx->ctxid == IWL_RXON_CTX_PAN && !bss_ctx->vif && | |
1416 | (bss_ctx->interface_modes & BIT(newtype) || | |
1417 | bss_ctx->exclusive_interface_modes & BIT(newtype))) { | |
1418 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
1419 | err = -EBUSY; | |
1420 | goto out; | |
1421 | } | |
1422 | ||
1423 | if (ctx->exclusive_interface_modes & BIT(newtype)) { | |
1424 | for_each_context(priv, tmp) { | |
1425 | if (ctx == tmp) | |
1426 | continue; | |
1427 | ||
1428 | if (!tmp->vif) | |
1429 | continue; | |
1430 | ||
1431 | /* | |
1432 | * The current mode switch would be exclusive, but | |
1433 | * another context is active ... refuse the switch. | |
1434 | */ | |
1435 | err = -EBUSY; | |
1436 | goto out; | |
1437 | } | |
1438 | } | |
1439 | ||
1440 | /* success */ | |
1441 | iwl_teardown_interface(priv, vif, true); | |
1442 | vif->type = newviftype; | |
1443 | vif->p2p = newp2p; | |
1444 | err = iwl_setup_interface(priv, ctx); | |
1445 | WARN_ON(err); | |
1446 | /* | |
1447 | * We've switched internally, but submitting to the | |
1448 | * device may have failed for some reason. Mask this | |
1449 | * error, because otherwise mac80211 will not switch | |
1450 | * (and set the interface type back) and we'll be | |
1451 | * out of sync with it. | |
1452 | */ | |
1453 | err = 0; | |
1454 | ||
1455 | out: | |
1456 | mutex_unlock(&priv->shrd->mutex); | |
1457 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1458 | ||
1459 | return err; | |
1460 | } | |
1461 | ||
ba4c5319 WYG |
1462 | static int iwlagn_mac_hw_scan(struct ieee80211_hw *hw, |
1463 | struct ieee80211_vif *vif, | |
1464 | struct cfg80211_scan_request *req) | |
1465 | { | |
1466 | struct iwl_priv *priv = hw->priv; | |
1467 | int ret; | |
1468 | ||
1469 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1470 | ||
1471 | if (req->n_channels == 0) | |
1472 | return -EINVAL; | |
1473 | ||
1474 | mutex_lock(&priv->shrd->mutex); | |
1475 | ||
1476 | /* | |
1477 | * If an internal scan is in progress, just set | |
1478 | * up the scan_request as per above. | |
1479 | */ | |
1480 | if (priv->scan_type != IWL_SCAN_NORMAL) { | |
1481 | IWL_DEBUG_SCAN(priv, | |
1482 | "SCAN request during internal scan - defer\n"); | |
1483 | priv->scan_request = req; | |
1484 | priv->scan_vif = vif; | |
1485 | ret = 0; | |
1486 | } else { | |
1487 | priv->scan_request = req; | |
1488 | priv->scan_vif = vif; | |
1489 | /* | |
1490 | * mac80211 will only ask for one band at a time | |
1491 | * so using channels[0] here is ok | |
1492 | */ | |
1493 | ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL, | |
1494 | req->channels[0]->band); | |
1495 | if (ret) { | |
1496 | priv->scan_request = NULL; | |
1497 | priv->scan_vif = NULL; | |
1498 | } | |
1499 | } | |
1500 | ||
1501 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1502 | ||
1503 | mutex_unlock(&priv->shrd->mutex); | |
1504 | ||
1505 | return ret; | |
1506 | } | |
1507 | ||
76b29331 WYG |
1508 | static int iwlagn_mac_sta_remove(struct ieee80211_hw *hw, |
1509 | struct ieee80211_vif *vif, | |
1510 | struct ieee80211_sta *sta) | |
1511 | { | |
1512 | struct iwl_priv *priv = hw->priv; | |
1513 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
1514 | int ret; | |
1515 | ||
1516 | IWL_DEBUG_MAC80211(priv, "enter: received request to remove " | |
1517 | "station %pM\n", sta->addr); | |
1518 | mutex_lock(&priv->shrd->mutex); | |
1519 | IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", | |
1520 | sta->addr); | |
1521 | ret = iwl_remove_station(priv, sta_priv->sta_id, sta->addr); | |
1522 | if (ret) | |
1523 | IWL_DEBUG_QUIET_RFKILL(priv, "Error removing station %pM\n", | |
1524 | sta->addr); | |
1525 | mutex_unlock(&priv->shrd->mutex); | |
1526 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1527 | ||
1528 | return ret; | |
1529 | } | |
1530 | ||
1531 | static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id) | |
1532 | { | |
1533 | unsigned long flags; | |
1534 | ||
1535 | spin_lock_irqsave(&priv->shrd->sta_lock, flags); | |
1536 | priv->stations[sta_id].sta.station_flags &= ~STA_FLG_PWR_SAVE_MSK; | |
1537 | priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK; | |
1538 | priv->stations[sta_id].sta.sta.modify_mask = 0; | |
1539 | priv->stations[sta_id].sta.sleep_tx_count = 0; | |
1540 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
1541 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); | |
1542 | spin_unlock_irqrestore(&priv->shrd->sta_lock, flags); | |
1543 | ||
1544 | } | |
1545 | ||
1546 | static void iwlagn_mac_sta_notify(struct ieee80211_hw *hw, | |
1547 | struct ieee80211_vif *vif, | |
1548 | enum sta_notify_cmd cmd, | |
1549 | struct ieee80211_sta *sta) | |
1550 | { | |
1551 | struct iwl_priv *priv = hw->priv; | |
1552 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
1553 | int sta_id; | |
1554 | ||
1555 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1556 | ||
1557 | switch (cmd) { | |
1558 | case STA_NOTIFY_SLEEP: | |
1559 | WARN_ON(!sta_priv->client); | |
1560 | sta_priv->asleep = true; | |
1561 | if (atomic_read(&sta_priv->pending_frames) > 0) | |
1562 | ieee80211_sta_block_awake(hw, sta, true); | |
1563 | break; | |
1564 | case STA_NOTIFY_AWAKE: | |
1565 | WARN_ON(!sta_priv->client); | |
1566 | if (!sta_priv->asleep) | |
1567 | break; | |
1568 | sta_priv->asleep = false; | |
1569 | sta_id = iwl_sta_id(sta); | |
1570 | if (sta_id != IWL_INVALID_STATION) | |
1571 | iwl_sta_modify_ps_wake(priv, sta_id); | |
1572 | break; | |
1573 | default: | |
1574 | break; | |
1575 | } | |
1576 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1577 | } | |
1578 | ||
7335613a WYG |
1579 | struct ieee80211_ops iwlagn_hw_ops = { |
1580 | .tx = iwlagn_mac_tx, | |
1581 | .start = iwlagn_mac_start, | |
1582 | .stop = iwlagn_mac_stop, | |
1583 | #ifdef CONFIG_PM_SLEEP | |
1584 | .suspend = iwlagn_mac_suspend, | |
1585 | .resume = iwlagn_mac_resume, | |
1586 | #endif | |
1587 | .add_interface = iwlagn_mac_add_interface, | |
1588 | .remove_interface = iwlagn_mac_remove_interface, | |
1589 | .change_interface = iwlagn_mac_change_interface, | |
1590 | .config = iwlagn_mac_config, | |
1591 | .configure_filter = iwlagn_configure_filter, | |
1592 | .set_key = iwlagn_mac_set_key, | |
1593 | .update_tkip_key = iwlagn_mac_update_tkip_key, | |
1594 | .set_rekey_data = iwlagn_mac_set_rekey_data, | |
1595 | .conf_tx = iwlagn_mac_conf_tx, | |
1596 | .bss_info_changed = iwlagn_bss_info_changed, | |
1597 | .ampdu_action = iwlagn_mac_ampdu_action, | |
1598 | .hw_scan = iwlagn_mac_hw_scan, | |
1599 | .sta_notify = iwlagn_mac_sta_notify, | |
1600 | .sta_add = iwlagn_mac_sta_add, | |
1601 | .sta_remove = iwlagn_mac_sta_remove, | |
1602 | .channel_switch = iwlagn_mac_channel_switch, | |
1603 | .flush = iwlagn_mac_flush, | |
1604 | .tx_last_beacon = iwlagn_mac_tx_last_beacon, | |
1605 | .remain_on_channel = iwlagn_mac_remain_on_channel, | |
1606 | .cancel_remain_on_channel = iwlagn_mac_cancel_remain_on_channel, | |
1607 | .rssi_callback = iwlagn_mac_rssi_callback, | |
1608 | CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd) | |
1609 | CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump) | |
1610 | .tx_sync = iwlagn_mac_tx_sync, | |
1611 | .finish_tx_sync = iwlagn_mac_finish_tx_sync, | |
1612 | .set_tim = iwlagn_mac_set_tim, | |
1613 | }; | |
1614 | ||
1615 | /* This function both allocates and initializes hw and priv. */ | |
1616 | struct ieee80211_hw *iwl_alloc_all(void) | |
1617 | { | |
1618 | struct iwl_priv *priv; | |
1619 | /* mac80211 allocates memory for this device instance, including | |
1620 | * space for this driver's private structure */ | |
1621 | struct ieee80211_hw *hw; | |
1622 | ||
1623 | hw = ieee80211_alloc_hw(sizeof(struct iwl_priv), &iwlagn_hw_ops); | |
1624 | if (!hw) | |
1625 | goto out; | |
1626 | ||
1627 | priv = hw->priv; | |
1628 | priv->hw = hw; | |
1629 | ||
1630 | out: | |
1631 | return hw; | |
1632 | } |