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7335613a WYG |
1 | /****************************************************************************** |
2 | * | |
4e318262 | 3 | * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved. |
7335613a WYG |
4 | * |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
25 | * Intel Linux Wireless <ilw@linux.intel.com> | |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
27 | * | |
28 | *****************************************************************************/ | |
29 | #include <linux/kernel.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/init.h> | |
32 | #include <linux/slab.h> | |
33 | #include <linux/dma-mapping.h> | |
34 | #include <linux/delay.h> | |
35 | #include <linux/sched.h> | |
36 | #include <linux/skbuff.h> | |
37 | #include <linux/netdevice.h> | |
7335613a WYG |
38 | #include <linux/etherdevice.h> |
39 | #include <linux/if_arp.h> | |
40 | ||
41 | #include <net/mac80211.h> | |
42 | ||
43 | #include <asm/div64.h> | |
44 | ||
45 | #include "iwl-eeprom.h" | |
46 | #include "iwl-dev.h" | |
7335613a WYG |
47 | #include "iwl-io.h" |
48 | #include "iwl-agn-calib.h" | |
49 | #include "iwl-agn.h" | |
7335613a | 50 | #include "iwl-trans.h" |
d0f76d68 | 51 | #include "iwl-op-mode.h" |
65de7e84 | 52 | #include "iwl-modparams.h" |
7335613a WYG |
53 | |
54 | /***************************************************************************** | |
55 | * | |
56 | * mac80211 entry point functions | |
57 | * | |
58 | *****************************************************************************/ | |
59 | ||
60 | static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = { | |
61 | { | |
62 | .max = 1, | |
63 | .types = BIT(NL80211_IFTYPE_STATION), | |
64 | }, | |
65 | { | |
66 | .max = 1, | |
67 | .types = BIT(NL80211_IFTYPE_AP), | |
68 | }, | |
69 | }; | |
70 | ||
71 | static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = { | |
72 | { | |
73 | .max = 2, | |
74 | .types = BIT(NL80211_IFTYPE_STATION), | |
75 | }, | |
76 | }; | |
77 | ||
78 | static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = { | |
79 | { | |
80 | .max = 1, | |
81 | .types = BIT(NL80211_IFTYPE_STATION), | |
82 | }, | |
83 | { | |
84 | .max = 1, | |
85 | .types = BIT(NL80211_IFTYPE_P2P_GO) | | |
86 | BIT(NL80211_IFTYPE_AP), | |
87 | }, | |
88 | }; | |
89 | ||
90 | static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = { | |
91 | { | |
92 | .max = 2, | |
93 | .types = BIT(NL80211_IFTYPE_STATION), | |
94 | }, | |
95 | { | |
96 | .max = 1, | |
97 | .types = BIT(NL80211_IFTYPE_P2P_CLIENT), | |
98 | }, | |
99 | }; | |
100 | ||
101 | static const struct ieee80211_iface_combination | |
102 | iwlagn_iface_combinations_dualmode[] = { | |
103 | { .num_different_channels = 1, | |
104 | .max_interfaces = 2, | |
105 | .beacon_int_infra_match = true, | |
106 | .limits = iwlagn_sta_ap_limits, | |
107 | .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits), | |
108 | }, | |
109 | { .num_different_channels = 1, | |
110 | .max_interfaces = 2, | |
111 | .limits = iwlagn_2sta_limits, | |
112 | .n_limits = ARRAY_SIZE(iwlagn_2sta_limits), | |
113 | }, | |
114 | }; | |
115 | ||
116 | static const struct ieee80211_iface_combination | |
117 | iwlagn_iface_combinations_p2p[] = { | |
118 | { .num_different_channels = 1, | |
119 | .max_interfaces = 2, | |
120 | .beacon_int_infra_match = true, | |
121 | .limits = iwlagn_p2p_sta_go_limits, | |
122 | .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits), | |
123 | }, | |
124 | { .num_different_channels = 1, | |
125 | .max_interfaces = 2, | |
126 | .limits = iwlagn_p2p_2sta_limits, | |
127 | .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits), | |
128 | }, | |
129 | }; | |
130 | ||
131 | /* | |
132 | * Not a mac80211 entry point function, but it fits in with all the | |
133 | * other mac80211 functions grouped here. | |
134 | */ | |
135 | int iwlagn_mac_setup_register(struct iwl_priv *priv, | |
0692fe41 | 136 | const struct iwl_ucode_capabilities *capa) |
7335613a WYG |
137 | { |
138 | int ret; | |
139 | struct ieee80211_hw *hw = priv->hw; | |
140 | struct iwl_rxon_context *ctx; | |
141 | ||
142 | hw->rate_control_algorithm = "iwl-agn-rs"; | |
143 | ||
144 | /* Tell mac80211 our characteristics */ | |
145 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
146 | IEEE80211_HW_AMPDU_AGGREGATION | | |
147 | IEEE80211_HW_NEED_DTIM_PERIOD | | |
148 | IEEE80211_HW_SPECTRUM_MGMT | | |
1479177b JB |
149 | IEEE80211_HW_REPORTS_TX_ACK_STATUS | |
150 | IEEE80211_HW_QUEUE_CONTROL | | |
151 | IEEE80211_HW_SUPPORTS_PS | | |
152 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS | | |
57897726 | 153 | IEEE80211_HW_WANT_MONITOR_VIF | |
1479177b JB |
154 | IEEE80211_HW_SCAN_WHILE_IDLE; |
155 | ||
156 | hw->offchannel_tx_hw_queue = IWL_AUX_QUEUE; | |
7335613a WYG |
157 | |
158 | /* | |
159 | * Including the following line will crash some AP's. This | |
160 | * workaround removes the stimulus which causes the crash until | |
161 | * the AP software can be fixed. | |
162 | hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF; | |
163 | */ | |
164 | ||
9e295116 | 165 | if (priv->hw_params.sku & EEPROM_SKU_CAP_11N_ENABLE) |
7335613a WYG |
166 | hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | |
167 | IEEE80211_HW_SUPPORTS_STATIC_SMPS; | |
168 | ||
18c57d3c DS |
169 | #ifndef CONFIG_IWLWIFI_EXPERIMENTAL_MFP |
170 | /* enable 11w if the uCode advertise */ | |
7335613a | 171 | if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP) |
18c57d3c | 172 | #endif /* !CONFIG_IWLWIFI_EXPERIMENTAL_MFP */ |
7335613a WYG |
173 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; |
174 | ||
175 | hw->sta_data_size = sizeof(struct iwl_station_priv); | |
176 | hw->vif_data_size = sizeof(struct iwl_vif_priv); | |
177 | ||
178 | for_each_context(priv, ctx) { | |
179 | hw->wiphy->interface_modes |= ctx->interface_modes; | |
180 | hw->wiphy->interface_modes |= ctx->exclusive_interface_modes; | |
181 | } | |
182 | ||
183 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
184 | ||
185 | if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) { | |
186 | hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p; | |
187 | hw->wiphy->n_iface_combinations = | |
188 | ARRAY_SIZE(iwlagn_iface_combinations_p2p); | |
189 | } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { | |
190 | hw->wiphy->iface_combinations = | |
191 | iwlagn_iface_combinations_dualmode; | |
192 | hw->wiphy->n_iface_combinations = | |
193 | ARRAY_SIZE(iwlagn_iface_combinations_dualmode); | |
194 | } | |
195 | ||
196 | hw->wiphy->max_remain_on_channel_duration = 1000; | |
197 | ||
198 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | | |
199 | WIPHY_FLAG_DISABLE_BEACON_HINTS | | |
200 | WIPHY_FLAG_IBSS_RSN; | |
201 | ||
fcb6ff5e | 202 | #ifdef CONFIG_PM_SLEEP |
6dfa8d01 | 203 | if (priv->fw->img[IWL_UCODE_WOWLAN].sec[0].len && |
68e8dfda EG |
204 | priv->trans->ops->wowlan_suspend && |
205 | device_can_wakeup(priv->trans->dev)) { | |
7335613a WYG |
206 | hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | |
207 | WIPHY_WOWLAN_DISCONNECT | | |
208 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
209 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
65de7e84 | 210 | if (!iwlwifi_mod_params.sw_crypto) |
7335613a WYG |
211 | hw->wiphy->wowlan.flags |= |
212 | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | | |
213 | WIPHY_WOWLAN_GTK_REKEY_FAILURE; | |
214 | ||
215 | hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS; | |
216 | hw->wiphy->wowlan.pattern_min_len = | |
217 | IWLAGN_WOWLAN_MIN_PATTERN_LEN; | |
218 | hw->wiphy->wowlan.pattern_max_len = | |
219 | IWLAGN_WOWLAN_MAX_PATTERN_LEN; | |
220 | } | |
fcb6ff5e | 221 | #endif |
7335613a | 222 | |
65de7e84 | 223 | if (iwlwifi_mod_params.power_save) |
7335613a WYG |
224 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
225 | else | |
226 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
227 | ||
228 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; | |
4f9bfbb1 DS |
229 | /* we create the 802.11 header and a max-length SSID element */ |
230 | hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 34; | |
7335613a | 231 | |
1479177b JB |
232 | /* |
233 | * We don't use all queues: 4 and 9 are unused and any | |
234 | * aggregation queue gets mapped down to the AC queue. | |
235 | */ | |
236 | hw->queues = IWLAGN_FIRST_AMPDU_QUEUE; | |
7335613a WYG |
237 | |
238 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; | |
239 | ||
240 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) | |
241 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
242 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
243 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) | |
244 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
245 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
246 | ||
68e8dfda | 247 | hw->wiphy->hw_version = priv->trans->hw_id; |
0ba958eb | 248 | |
7335613a WYG |
249 | iwl_leds_init(priv); |
250 | ||
251 | ret = ieee80211_register_hw(priv->hw); | |
252 | if (ret) { | |
253 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); | |
0e1fa7ef | 254 | iwl_leds_exit(priv); |
7335613a WYG |
255 | return ret; |
256 | } | |
257 | priv->mac80211_registered = 1; | |
258 | ||
259 | return 0; | |
260 | } | |
261 | ||
09af1403 DF |
262 | void iwlagn_mac_unregister(struct iwl_priv *priv) |
263 | { | |
264 | if (!priv->mac80211_registered) | |
265 | return; | |
266 | iwl_leds_exit(priv); | |
267 | ieee80211_unregister_hw(priv->hw); | |
268 | priv->mac80211_registered = 0; | |
269 | } | |
270 | ||
7335613a WYG |
271 | static int __iwl_up(struct iwl_priv *priv) |
272 | { | |
273 | struct iwl_rxon_context *ctx; | |
274 | int ret; | |
275 | ||
b1eea297 | 276 | lockdep_assert_held(&priv->mutex); |
7335613a | 277 | |
83626404 | 278 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
7335613a WYG |
279 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
280 | return -EIO; | |
281 | } | |
282 | ||
283 | for_each_context(priv, ctx) { | |
284 | ret = iwlagn_alloc_bcast_station(priv, ctx); | |
285 | if (ret) { | |
286 | iwl_dealloc_bcast_stations(priv); | |
287 | return ret; | |
288 | } | |
289 | } | |
290 | ||
e1991885 | 291 | ret = iwl_run_init_ucode(priv); |
7335613a WYG |
292 | if (ret) { |
293 | IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret); | |
294 | goto error; | |
295 | } | |
296 | ||
e1991885 | 297 | ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR); |
7335613a WYG |
298 | if (ret) { |
299 | IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret); | |
300 | goto error; | |
301 | } | |
302 | ||
303 | ret = iwl_alive_start(priv); | |
304 | if (ret) | |
305 | goto error; | |
306 | return 0; | |
307 | ||
308 | error: | |
83626404 | 309 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
78e5a464 | 310 | iwl_down(priv); |
83626404 | 311 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
7335613a WYG |
312 | |
313 | IWL_ERR(priv, "Unable to initialize device.\n"); | |
314 | return ret; | |
315 | } | |
316 | ||
317 | static int iwlagn_mac_start(struct ieee80211_hw *hw) | |
318 | { | |
d0f76d68 | 319 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
320 | int ret; |
321 | ||
322 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
323 | ||
324 | /* we should be verifying the device is ready to be opened */ | |
b1eea297 | 325 | mutex_lock(&priv->mutex); |
7335613a | 326 | ret = __iwl_up(priv); |
b1eea297 | 327 | mutex_unlock(&priv->mutex); |
7335613a WYG |
328 | if (ret) |
329 | return ret; | |
330 | ||
331 | IWL_DEBUG_INFO(priv, "Start UP work done.\n"); | |
332 | ||
333 | /* Now we should be done, and the READY bit should be set. */ | |
83626404 | 334 | if (WARN_ON(!test_bit(STATUS_READY, &priv->status))) |
7335613a WYG |
335 | ret = -EIO; |
336 | ||
337 | iwlagn_led_enable(priv); | |
338 | ||
339 | priv->is_open = 1; | |
340 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
341 | return 0; | |
342 | } | |
343 | ||
50c1e9a9 | 344 | void iwlagn_mac_stop(struct ieee80211_hw *hw) |
7335613a | 345 | { |
d0f76d68 | 346 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
347 | |
348 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
349 | ||
350 | if (!priv->is_open) | |
351 | return; | |
352 | ||
353 | priv->is_open = 0; | |
354 | ||
b1eea297 | 355 | mutex_lock(&priv->mutex); |
7335613a | 356 | iwl_down(priv); |
b1eea297 | 357 | mutex_unlock(&priv->mutex); |
78e5a464 EG |
358 | |
359 | iwl_cancel_deferred_work(priv); | |
7335613a | 360 | |
1ee158d8 | 361 | flush_workqueue(priv->workqueue); |
7335613a WYG |
362 | |
363 | /* User space software may expect getting rfkill changes | |
1df06bdc EG |
364 | * even if interface is down, trans->down will leave the RF |
365 | * kill interrupt enabled | |
366 | */ | |
218733cf | 367 | iwl_trans_stop_hw(priv->trans, false); |
7335613a WYG |
368 | |
369 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
370 | } | |
371 | ||
50c1e9a9 DS |
372 | void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw, |
373 | struct ieee80211_vif *vif, | |
374 | struct cfg80211_gtk_rekey_data *data) | |
7335613a | 375 | { |
d0f76d68 | 376 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 377 | |
65de7e84 | 378 | if (iwlwifi_mod_params.sw_crypto) |
7335613a WYG |
379 | return; |
380 | ||
381 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 382 | mutex_lock(&priv->mutex); |
7335613a WYG |
383 | |
384 | if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif) | |
385 | goto out; | |
386 | ||
387 | memcpy(priv->kek, data->kek, NL80211_KEK_LEN); | |
388 | memcpy(priv->kck, data->kck, NL80211_KCK_LEN); | |
389 | priv->replay_ctr = | |
390 | cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); | |
391 | priv->have_rekey_data = true; | |
392 | ||
393 | out: | |
b1eea297 | 394 | mutex_unlock(&priv->mutex); |
7335613a WYG |
395 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
396 | } | |
397 | ||
398 | #ifdef CONFIG_PM_SLEEP | |
7335613a | 399 | |
50c1e9a9 | 400 | int iwlagn_mac_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) |
7335613a | 401 | { |
d0f76d68 | 402 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 403 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
023ca58f | 404 | int ret; |
7335613a WYG |
405 | |
406 | if (WARN_ON(!wowlan)) | |
407 | return -EINVAL; | |
408 | ||
409 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 410 | mutex_lock(&priv->mutex); |
7335613a WYG |
411 | |
412 | /* Don't attempt WoWLAN when not associated, tear down instead. */ | |
413 | if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION || | |
414 | !iwl_is_associated_ctx(ctx)) { | |
415 | ret = 1; | |
416 | goto out; | |
417 | } | |
418 | ||
ea886a60 | 419 | ret = iwlagn_suspend(priv, wowlan); |
7335613a WYG |
420 | if (ret) |
421 | goto error; | |
422 | ||
68e8dfda | 423 | device_set_wakeup_enable(priv->trans->dev, true); |
7335613a | 424 | |
68e8dfda | 425 | iwl_trans_wowlan_suspend(priv->trans); |
7335613a WYG |
426 | |
427 | goto out; | |
428 | ||
429 | error: | |
15b86bff | 430 | priv->wowlan = false; |
7335613a WYG |
431 | iwlagn_prepare_restart(priv); |
432 | ieee80211_restart_hw(priv->hw); | |
433 | out: | |
b1eea297 | 434 | mutex_unlock(&priv->mutex); |
7335613a WYG |
435 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
436 | ||
437 | return ret; | |
438 | } | |
439 | ||
440 | static int iwlagn_mac_resume(struct ieee80211_hw *hw) | |
441 | { | |
d0f76d68 | 442 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
443 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
444 | struct ieee80211_vif *vif; | |
445 | unsigned long flags; | |
446 | u32 base, status = 0xffffffff; | |
447 | int ret = -EIO; | |
448 | ||
449 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 450 | mutex_lock(&priv->mutex); |
7335613a | 451 | |
68e8dfda | 452 | iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR, |
7335613a WYG |
453 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); |
454 | ||
2fdfc476 | 455 | base = priv->device_pointers.error_event_table; |
7335613a | 456 | if (iwlagn_hw_valid_rtc_data_addr(base)) { |
68e8dfda EG |
457 | spin_lock_irqsave(&priv->trans->reg_lock, flags); |
458 | ret = iwl_grab_nic_access_silent(priv->trans); | |
bfe4b80e | 459 | if (likely(ret == 0)) { |
68e8dfda EG |
460 | iwl_write32(priv->trans, HBUS_TARG_MEM_RADDR, base); |
461 | status = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT); | |
462 | iwl_release_nic_access(priv->trans); | |
7335613a | 463 | } |
68e8dfda | 464 | spin_unlock_irqrestore(&priv->trans->reg_lock, flags); |
7335613a WYG |
465 | |
466 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
467 | if (ret == 0) { | |
a855f7ee OH |
468 | const struct fw_img *img; |
469 | ||
6dfa8d01 DS |
470 | img = &(priv->fw->img[IWL_UCODE_WOWLAN]); |
471 | if (!priv->wowlan_sram) { | |
7335613a | 472 | priv->wowlan_sram = |
6dfa8d01 | 473 | kzalloc(img->sec[IWL_UCODE_SECTION_DATA].len, |
7335613a | 474 | GFP_KERNEL); |
6dfa8d01 | 475 | } |
7335613a WYG |
476 | |
477 | if (priv->wowlan_sram) | |
478 | _iwl_read_targ_mem_words( | |
68e8dfda | 479 | priv->trans, 0x800000, |
6dfa8d01 DS |
480 | priv->wowlan_sram, |
481 | img->sec[IWL_UCODE_SECTION_DATA].len / 4); | |
7335613a WYG |
482 | } |
483 | #endif | |
484 | } | |
485 | ||
486 | /* we'll clear ctx->vif during iwlagn_prepare_restart() */ | |
487 | vif = ctx->vif; | |
488 | ||
15b86bff | 489 | priv->wowlan = false; |
7335613a | 490 | |
68e8dfda | 491 | device_set_wakeup_enable(priv->trans->dev, false); |
7335613a WYG |
492 | |
493 | iwlagn_prepare_restart(priv); | |
494 | ||
495 | memset((void *)&ctx->active, 0, sizeof(ctx->active)); | |
496 | iwl_connection_init_rx_config(priv, ctx); | |
497 | iwlagn_set_rxon_chain(priv, ctx); | |
498 | ||
b1eea297 | 499 | mutex_unlock(&priv->mutex); |
7335613a WYG |
500 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
501 | ||
502 | ieee80211_resume_disconnect(vif); | |
503 | ||
504 | return 1; | |
505 | } | |
506 | ||
507 | #endif | |
508 | ||
50c1e9a9 | 509 | void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
7335613a | 510 | { |
d0f76d68 | 511 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 512 | |
7335613a WYG |
513 | IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
514 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); | |
515 | ||
516 | if (iwlagn_tx_skb(priv, skb)) | |
517 | dev_kfree_skb_any(skb); | |
7335613a WYG |
518 | } |
519 | ||
50c1e9a9 DS |
520 | void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw, |
521 | struct ieee80211_vif *vif, | |
522 | struct ieee80211_key_conf *keyconf, | |
523 | struct ieee80211_sta *sta, | |
524 | u32 iv32, u16 *phase1key) | |
7335613a | 525 | { |
d0f76d68 | 526 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
527 | |
528 | iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key); | |
529 | } | |
530 | ||
50c1e9a9 DS |
531 | int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
532 | struct ieee80211_vif *vif, | |
533 | struct ieee80211_sta *sta, | |
534 | struct ieee80211_key_conf *key) | |
7335613a | 535 | { |
d0f76d68 | 536 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
537 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
538 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
539 | int ret; | |
540 | bool is_default_wep_key = false; | |
541 | ||
542 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
543 | ||
65de7e84 | 544 | if (iwlwifi_mod_params.sw_crypto) { |
7335613a WYG |
545 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); |
546 | return -EOPNOTSUPP; | |
547 | } | |
548 | ||
a7e12c8e JB |
549 | switch (key->cipher) { |
550 | case WLAN_CIPHER_SUITE_TKIP: | |
551 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
552 | /* fall through */ | |
553 | case WLAN_CIPHER_SUITE_CCMP: | |
554 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
555 | break; | |
556 | default: | |
557 | break; | |
558 | } | |
559 | ||
7335613a WYG |
560 | /* |
561 | * We could program these keys into the hardware as well, but we | |
562 | * don't expect much multicast traffic in IBSS and having keys | |
563 | * for more stations is probably more useful. | |
564 | * | |
565 | * Mark key TX-only and return 0. | |
566 | */ | |
567 | if (vif->type == NL80211_IFTYPE_ADHOC && | |
568 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { | |
569 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
570 | return 0; | |
571 | } | |
572 | ||
573 | /* If they key was TX-only, accept deletion */ | |
574 | if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET) | |
575 | return 0; | |
576 | ||
b1eea297 | 577 | mutex_lock(&priv->mutex); |
7335613a WYG |
578 | iwl_scan_cancel_timeout(priv, 100); |
579 | ||
580 | BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT); | |
581 | ||
582 | /* | |
583 | * If we are getting WEP group key and we didn't receive any key mapping | |
584 | * so far, we are in legacy wep mode (group key only), otherwise we are | |
585 | * in 1X mode. | |
586 | * In legacy wep mode, we use another host command to the uCode. | |
587 | */ | |
588 | if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || | |
589 | key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) { | |
590 | if (cmd == SET_KEY) | |
591 | is_default_wep_key = !ctx->key_mapping_keys; | |
592 | else | |
593 | is_default_wep_key = | |
594 | key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT; | |
595 | } | |
596 | ||
597 | ||
598 | switch (cmd) { | |
599 | case SET_KEY: | |
600 | if (is_default_wep_key) { | |
601 | ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key); | |
602 | break; | |
603 | } | |
604 | ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta); | |
605 | if (ret) { | |
606 | /* | |
607 | * can't add key for RX, but we don't need it | |
608 | * in the device for TX so still return 0 | |
609 | */ | |
610 | ret = 0; | |
611 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
612 | } | |
613 | ||
614 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); | |
615 | break; | |
616 | case DISABLE_KEY: | |
617 | if (is_default_wep_key) | |
618 | ret = iwl_remove_default_wep_key(priv, ctx, key); | |
619 | else | |
620 | ret = iwl_remove_dynamic_key(priv, ctx, key, sta); | |
621 | ||
622 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); | |
623 | break; | |
624 | default: | |
625 | ret = -EINVAL; | |
626 | } | |
627 | ||
b1eea297 | 628 | mutex_unlock(&priv->mutex); |
7335613a WYG |
629 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
630 | ||
631 | return ret; | |
632 | } | |
633 | ||
50c1e9a9 DS |
634 | int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, |
635 | struct ieee80211_vif *vif, | |
636 | enum ieee80211_ampdu_mlme_action action, | |
637 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, | |
638 | u8 buf_size) | |
7335613a | 639 | { |
d0f76d68 | 640 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
641 | int ret = -EINVAL; |
642 | struct iwl_station_priv *sta_priv = (void *) sta->drv_priv; | |
7335613a WYG |
643 | |
644 | IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", | |
645 | sta->addr, tid); | |
646 | ||
9e295116 | 647 | if (!(priv->hw_params.sku & EEPROM_SKU_CAP_11N_ENABLE)) |
7335613a WYG |
648 | return -EACCES; |
649 | ||
650 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 651 | mutex_lock(&priv->mutex); |
7335613a WYG |
652 | |
653 | switch (action) { | |
654 | case IEEE80211_AMPDU_RX_START: | |
65de7e84 | 655 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) |
7428994d | 656 | break; |
7335613a WYG |
657 | IWL_DEBUG_HT(priv, "start Rx\n"); |
658 | ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn); | |
659 | break; | |
660 | case IEEE80211_AMPDU_RX_STOP: | |
661 | IWL_DEBUG_HT(priv, "stop Rx\n"); | |
662 | ret = iwl_sta_rx_agg_stop(priv, sta, tid); | |
7335613a WYG |
663 | break; |
664 | case IEEE80211_AMPDU_TX_START: | |
68e8dfda | 665 | if (!priv->trans->ops->tx_agg_setup) |
9eae88fa | 666 | break; |
65de7e84 | 667 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) |
7428994d | 668 | break; |
7335613a WYG |
669 | IWL_DEBUG_HT(priv, "start Tx\n"); |
670 | ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn); | |
671 | break; | |
672 | case IEEE80211_AMPDU_TX_STOP: | |
673 | IWL_DEBUG_HT(priv, "stop Tx\n"); | |
674 | ret = iwlagn_tx_agg_stop(priv, vif, sta, tid); | |
675 | if ((ret == 0) && (priv->agg_tids_count > 0)) { | |
676 | priv->agg_tids_count--; | |
677 | IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", | |
678 | priv->agg_tids_count); | |
679 | } | |
b9ad70da | 680 | if (!priv->agg_tids_count && |
9e295116 | 681 | priv->hw_params.use_rts_for_aggregation) { |
7335613a WYG |
682 | /* |
683 | * switch off RTS/CTS if it was previously enabled | |
684 | */ | |
685 | sta_priv->lq_sta.lq.general_params.flags &= | |
686 | ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; | |
687 | iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), | |
688 | &sta_priv->lq_sta.lq, CMD_ASYNC, false); | |
689 | } | |
690 | break; | |
691 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
822e8b2a | 692 | ret = iwlagn_tx_agg_oper(priv, vif, sta, tid, buf_size); |
7335613a WYG |
693 | break; |
694 | } | |
b1eea297 | 695 | mutex_unlock(&priv->mutex); |
7335613a WYG |
696 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
697 | return ret; | |
698 | } | |
699 | ||
700 | static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, | |
701 | struct ieee80211_vif *vif, | |
702 | struct ieee80211_sta *sta) | |
703 | { | |
d0f76d68 | 704 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
705 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
706 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
707 | bool is_ap = vif->type == NL80211_IFTYPE_STATION; | |
fb5fe5b9 | 708 | int ret; |
7335613a WYG |
709 | u8 sta_id; |
710 | ||
7335613a WYG |
711 | IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", |
712 | sta->addr); | |
713 | sta_priv->sta_id = IWL_INVALID_STATION; | |
714 | ||
715 | atomic_set(&sta_priv->pending_frames, 0); | |
716 | if (vif->type == NL80211_IFTYPE_AP) | |
717 | sta_priv->client = true; | |
718 | ||
719 | ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr, | |
720 | is_ap, sta, &sta_id); | |
721 | if (ret) { | |
722 | IWL_ERR(priv, "Unable to add station %pM (%d)\n", | |
723 | sta->addr, ret); | |
724 | /* Should we return success if return code is EEXIST ? */ | |
fb5fe5b9 | 725 | return ret; |
7335613a WYG |
726 | } |
727 | ||
728 | sta_priv->sta_id = sta_id; | |
729 | ||
fb5fe5b9 JB |
730 | return 0; |
731 | } | |
732 | ||
733 | static int iwlagn_mac_sta_remove(struct ieee80211_hw *hw, | |
734 | struct ieee80211_vif *vif, | |
735 | struct ieee80211_sta *sta) | |
736 | { | |
737 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
738 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
739 | int ret; | |
740 | ||
97420515 JB |
741 | IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", sta->addr); |
742 | ||
743 | if (vif->type == NL80211_IFTYPE_STATION) { | |
744 | /* | |
745 | * Station will be removed from device when the RXON | |
746 | * is set to unassociated -- just deactivate it here | |
747 | * to avoid re-programming it. | |
748 | */ | |
749 | ret = 0; | |
750 | iwl_deactivate_station(priv, sta_priv->sta_id, sta->addr); | |
751 | } else { | |
752 | ret = iwl_remove_station(priv, sta_priv->sta_id, sta->addr); | |
753 | if (ret) | |
754 | IWL_DEBUG_QUIET_RFKILL(priv, | |
755 | "Error removing station %pM\n", sta->addr); | |
756 | } | |
fb5fe5b9 JB |
757 | return ret; |
758 | } | |
759 | ||
50c1e9a9 DS |
760 | int iwlagn_mac_sta_state(struct ieee80211_hw *hw, |
761 | struct ieee80211_vif *vif, | |
762 | struct ieee80211_sta *sta, | |
763 | enum ieee80211_sta_state old_state, | |
764 | enum ieee80211_sta_state new_state) | |
fb5fe5b9 JB |
765 | { |
766 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
ab0bd5b3 | 767 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
fb5fe5b9 | 768 | enum { |
ab0bd5b3 | 769 | NONE, ADD, REMOVE, HT_RATE_INIT, ADD_RATE_INIT, |
fb5fe5b9 JB |
770 | } op = NONE; |
771 | int ret; | |
772 | ||
773 | IWL_DEBUG_MAC80211(priv, "station %pM state change %d->%d\n", | |
774 | sta->addr, old_state, new_state); | |
775 | ||
b1eea297 | 776 | mutex_lock(&priv->mutex); |
fb5fe5b9 JB |
777 | if (vif->type == NL80211_IFTYPE_STATION) { |
778 | if (old_state == IEEE80211_STA_NOTEXIST && | |
779 | new_state == IEEE80211_STA_NONE) | |
780 | op = ADD; | |
781 | else if (old_state == IEEE80211_STA_NONE && | |
782 | new_state == IEEE80211_STA_NOTEXIST) | |
783 | op = REMOVE; | |
784 | else if (old_state == IEEE80211_STA_AUTH && | |
785 | new_state == IEEE80211_STA_ASSOC) | |
ab0bd5b3 | 786 | op = HT_RATE_INIT; |
fb5fe5b9 JB |
787 | } else { |
788 | if (old_state == IEEE80211_STA_AUTH && | |
789 | new_state == IEEE80211_STA_ASSOC) | |
790 | op = ADD_RATE_INIT; | |
791 | else if (old_state == IEEE80211_STA_ASSOC && | |
792 | new_state == IEEE80211_STA_AUTH) | |
793 | op = REMOVE; | |
794 | } | |
795 | ||
796 | switch (op) { | |
797 | case ADD: | |
798 | ret = iwlagn_mac_sta_add(hw, vif, sta); | |
eac9ac6d JB |
799 | if (ret) |
800 | break; | |
801 | /* | |
802 | * Clear the in-progress flag, the AP station entry was added | |
803 | * but we'll initialize LQ only when we've associated (which | |
804 | * would also clear the in-progress flag). This is necessary | |
805 | * in case we never initialize LQ because association fails. | |
806 | */ | |
807 | spin_lock_bh(&priv->sta_lock); | |
808 | priv->stations[iwl_sta_id(sta)].used &= | |
809 | ~IWL_STA_UCODE_INPROGRESS; | |
810 | spin_unlock_bh(&priv->sta_lock); | |
fb5fe5b9 JB |
811 | break; |
812 | case REMOVE: | |
813 | ret = iwlagn_mac_sta_remove(hw, vif, sta); | |
814 | break; | |
815 | case ADD_RATE_INIT: | |
816 | ret = iwlagn_mac_sta_add(hw, vif, sta); | |
817 | if (ret) | |
818 | break; | |
fb5fe5b9 JB |
819 | /* Initialize rate scaling */ |
820 | IWL_DEBUG_INFO(priv, | |
821 | "Initializing rate scaling for station %pM\n", | |
822 | sta->addr); | |
823 | iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); | |
824 | ret = 0; | |
825 | break; | |
ab0bd5b3 JB |
826 | case HT_RATE_INIT: |
827 | /* Initialize rate scaling */ | |
828 | ret = iwl_sta_update_ht(priv, vif_priv->ctx, sta); | |
829 | if (ret) | |
830 | break; | |
831 | IWL_DEBUG_INFO(priv, | |
832 | "Initializing rate scaling for station %pM\n", | |
833 | sta->addr); | |
834 | iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); | |
835 | ret = 0; | |
836 | break; | |
fb5fe5b9 JB |
837 | default: |
838 | ret = 0; | |
839 | break; | |
840 | } | |
841 | ||
842 | /* | |
843 | * mac80211 might WARN if we fail, but due the way we | |
844 | * (badly) handle hard rfkill, we might fail here | |
845 | */ | |
83626404 | 846 | if (iwl_is_rfkill(priv)) |
fb5fe5b9 JB |
847 | ret = 0; |
848 | ||
b1eea297 | 849 | mutex_unlock(&priv->mutex); |
7335613a WYG |
850 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
851 | ||
852 | return ret; | |
853 | } | |
854 | ||
50c1e9a9 DS |
855 | void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, |
856 | struct ieee80211_channel_switch *ch_switch) | |
7335613a | 857 | { |
d0f76d68 | 858 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
859 | const struct iwl_channel_info *ch_info; |
860 | struct ieee80211_conf *conf = &hw->conf; | |
861 | struct ieee80211_channel *channel = ch_switch->channel; | |
862 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; | |
863 | /* | |
864 | * MULTI-FIXME | |
865 | * When we add support for multiple interfaces, we need to | |
866 | * revisit this. The channel switch command in the device | |
867 | * only affects the BSS context, but what does that really | |
868 | * mean? And what if we get a CSA on the second interface? | |
869 | * This needs a lot of work. | |
870 | */ | |
871 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
872 | u16 ch; | |
873 | ||
874 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
875 | ||
b1eea297 | 876 | mutex_lock(&priv->mutex); |
7335613a | 877 | |
83626404 | 878 | if (iwl_is_rfkill(priv)) |
7335613a WYG |
879 | goto out; |
880 | ||
83626404 DF |
881 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || |
882 | test_bit(STATUS_SCANNING, &priv->status) || | |
883 | test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) | |
7335613a WYG |
884 | goto out; |
885 | ||
886 | if (!iwl_is_associated_ctx(ctx)) | |
887 | goto out; | |
888 | ||
e9676695 | 889 | if (!priv->lib->set_channel_switch) |
7335613a WYG |
890 | goto out; |
891 | ||
892 | ch = channel->hw_value; | |
893 | if (le16_to_cpu(ctx->active.channel) == ch) | |
894 | goto out; | |
895 | ||
896 | ch_info = iwl_get_channel_info(priv, channel->band, ch); | |
897 | if (!is_channel_valid(ch_info)) { | |
898 | IWL_DEBUG_MAC80211(priv, "invalid channel\n"); | |
899 | goto out; | |
900 | } | |
901 | ||
7335613a WYG |
902 | priv->current_ht_config.smps = conf->smps_mode; |
903 | ||
904 | /* Configure HT40 channels */ | |
905 | ctx->ht.enabled = conf_is_ht(conf); | |
137ce797 WYG |
906 | if (ctx->ht.enabled) |
907 | iwlagn_config_ht40(conf, ctx); | |
908 | else | |
7335613a WYG |
909 | ctx->ht.is_40mhz = false; |
910 | ||
911 | if ((le16_to_cpu(ctx->staging.channel) != ch)) | |
912 | ctx->staging.flags = 0; | |
913 | ||
914 | iwl_set_rxon_channel(priv, channel, ctx); | |
915 | iwl_set_rxon_ht(priv, ht_conf); | |
916 | iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif); | |
917 | ||
7335613a WYG |
918 | /* |
919 | * at this point, staging_rxon has the | |
920 | * configuration for channel switch | |
921 | */ | |
83626404 | 922 | set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); |
7335613a | 923 | priv->switch_channel = cpu_to_le16(ch); |
e9676695 | 924 | if (priv->lib->set_channel_switch(priv, ch_switch)) { |
83626404 | 925 | clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); |
7335613a WYG |
926 | priv->switch_channel = 0; |
927 | ieee80211_chswitch_done(ctx->vif, false); | |
928 | } | |
929 | ||
930 | out: | |
b1eea297 | 931 | mutex_unlock(&priv->mutex); |
7335613a WYG |
932 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
933 | } | |
934 | ||
bedec3a6 MV |
935 | void iwl_chswitch_done(struct iwl_priv *priv, bool is_success) |
936 | { | |
937 | /* | |
938 | * MULTI-FIXME | |
939 | * See iwlagn_mac_channel_switch. | |
940 | */ | |
941 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
942 | ||
943 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
944 | return; | |
945 | ||
946 | if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) | |
947 | ieee80211_chswitch_done(ctx->vif, is_success); | |
948 | } | |
949 | ||
50c1e9a9 DS |
950 | void iwlagn_configure_filter(struct ieee80211_hw *hw, |
951 | unsigned int changed_flags, | |
952 | unsigned int *total_flags, | |
953 | u64 multicast) | |
7335613a | 954 | { |
d0f76d68 | 955 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
956 | __le32 filter_or = 0, filter_nand = 0; |
957 | struct iwl_rxon_context *ctx; | |
958 | ||
959 | #define CHK(test, flag) do { \ | |
960 | if (*total_flags & (test)) \ | |
961 | filter_or |= (flag); \ | |
962 | else \ | |
963 | filter_nand |= (flag); \ | |
964 | } while (0) | |
965 | ||
966 | IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", | |
967 | changed_flags, *total_flags); | |
968 | ||
969 | CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); | |
970 | /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */ | |
971 | CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK); | |
972 | CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); | |
973 | ||
974 | #undef CHK | |
975 | ||
b1eea297 | 976 | mutex_lock(&priv->mutex); |
7335613a WYG |
977 | |
978 | for_each_context(priv, ctx) { | |
979 | ctx->staging.filter_flags &= ~filter_nand; | |
980 | ctx->staging.filter_flags |= filter_or; | |
981 | ||
982 | /* | |
983 | * Not committing directly because hardware can perform a scan, | |
984 | * but we'll eventually commit the filter flags change anyway. | |
985 | */ | |
986 | } | |
987 | ||
b1eea297 | 988 | mutex_unlock(&priv->mutex); |
7335613a WYG |
989 | |
990 | /* | |
991 | * Receiving all multicast frames is always enabled by the | |
992 | * default flags setup in iwl_connection_init_rx_config() | |
993 | * since we currently do not support programming multicast | |
994 | * filters into the device. | |
995 | */ | |
996 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | | |
997 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; | |
998 | } | |
999 | ||
50c1e9a9 | 1000 | void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop) |
7335613a | 1001 | { |
d0f76d68 | 1002 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 1003 | |
b1eea297 | 1004 | mutex_lock(&priv->mutex); |
7335613a WYG |
1005 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
1006 | ||
83626404 | 1007 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
7335613a WYG |
1008 | IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n"); |
1009 | goto done; | |
1010 | } | |
83626404 | 1011 | if (iwl_is_rfkill(priv)) { |
7335613a WYG |
1012 | IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n"); |
1013 | goto done; | |
1014 | } | |
1015 | ||
1016 | /* | |
1017 | * mac80211 will not push any more frames for transmit | |
1018 | * until the flush is completed | |
1019 | */ | |
1020 | if (drop) { | |
1021 | IWL_DEBUG_MAC80211(priv, "send flush command\n"); | |
1022 | if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) { | |
1023 | IWL_ERR(priv, "flush request fail\n"); | |
1024 | goto done; | |
1025 | } | |
1026 | } | |
1027 | IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n"); | |
68e8dfda | 1028 | iwl_trans_wait_tx_queue_empty(priv->trans); |
7335613a | 1029 | done: |
b1eea297 | 1030 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1031 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1032 | } | |
1033 | ||
1034 | static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw, | |
1035 | struct ieee80211_channel *channel, | |
1036 | enum nl80211_channel_type channel_type, | |
1037 | int duration) | |
1038 | { | |
d0f76d68 | 1039 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
1040 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN]; |
1041 | int err = 0; | |
1042 | ||
a18f61bc | 1043 | if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) |
7335613a WYG |
1044 | return -EOPNOTSUPP; |
1045 | ||
1046 | if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT))) | |
1047 | return -EOPNOTSUPP; | |
1048 | ||
1049 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 1050 | mutex_lock(&priv->mutex); |
7335613a | 1051 | |
83626404 | 1052 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { |
7335613a WYG |
1053 | err = -EBUSY; |
1054 | goto out; | |
1055 | } | |
1056 | ||
1057 | priv->hw_roc_channel = channel; | |
1058 | priv->hw_roc_chantype = channel_type; | |
3ddf6bef JB |
1059 | /* convert from ms to TU */ |
1060 | priv->hw_roc_duration = DIV_ROUND_UP(1000 * duration, 1024); | |
7335613a WYG |
1061 | priv->hw_roc_start_notified = false; |
1062 | cancel_delayed_work(&priv->hw_roc_disable_work); | |
1063 | ||
1064 | if (!ctx->is_active) { | |
a69cd040 JB |
1065 | static const struct iwl_qos_info default_qos_data = { |
1066 | .def_qos_parm = { | |
1067 | .ac[0] = { | |
1068 | .cw_min = cpu_to_le16(3), | |
1069 | .cw_max = cpu_to_le16(7), | |
1070 | .aifsn = 2, | |
1071 | .edca_txop = cpu_to_le16(1504), | |
1072 | }, | |
1073 | .ac[1] = { | |
1074 | .cw_min = cpu_to_le16(7), | |
1075 | .cw_max = cpu_to_le16(15), | |
1076 | .aifsn = 2, | |
1077 | .edca_txop = cpu_to_le16(3008), | |
1078 | }, | |
1079 | .ac[2] = { | |
1080 | .cw_min = cpu_to_le16(15), | |
1081 | .cw_max = cpu_to_le16(1023), | |
1082 | .aifsn = 3, | |
1083 | }, | |
1084 | .ac[3] = { | |
1085 | .cw_min = cpu_to_le16(15), | |
1086 | .cw_max = cpu_to_le16(1023), | |
1087 | .aifsn = 7, | |
1088 | }, | |
1089 | }, | |
1090 | }; | |
1091 | ||
7335613a | 1092 | ctx->is_active = true; |
a69cd040 | 1093 | ctx->qos_data = default_qos_data; |
7335613a WYG |
1094 | ctx->staging.dev_type = RXON_DEV_TYPE_P2P; |
1095 | memcpy(ctx->staging.node_addr, | |
1096 | priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, | |
1097 | ETH_ALEN); | |
1098 | memcpy(ctx->staging.bssid_addr, | |
1099 | priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, | |
1100 | ETH_ALEN); | |
1101 | err = iwlagn_commit_rxon(priv, ctx); | |
1102 | if (err) | |
1103 | goto out; | |
1104 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK | | |
1105 | RXON_FILTER_PROMISC_MSK | | |
1106 | RXON_FILTER_CTL2HOST_MSK; | |
1107 | ||
1108 | err = iwlagn_commit_rxon(priv, ctx); | |
1109 | if (err) { | |
1110 | iwlagn_disable_roc(priv); | |
1111 | goto out; | |
1112 | } | |
1113 | priv->hw_roc_setup = true; | |
1114 | } | |
1115 | ||
1116 | err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band); | |
1117 | if (err) | |
1118 | iwlagn_disable_roc(priv); | |
1119 | ||
1120 | out: | |
b1eea297 | 1121 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1122 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1123 | ||
1124 | return err; | |
1125 | } | |
1126 | ||
50c1e9a9 | 1127 | int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw *hw) |
7335613a | 1128 | { |
d0f76d68 | 1129 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 1130 | |
a18f61bc | 1131 | if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) |
7335613a WYG |
1132 | return -EOPNOTSUPP; |
1133 | ||
1134 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 1135 | mutex_lock(&priv->mutex); |
7335613a WYG |
1136 | iwl_scan_cancel_timeout(priv, priv->hw_roc_duration); |
1137 | iwlagn_disable_roc(priv); | |
b1eea297 | 1138 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1139 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1140 | ||
1141 | return 0; | |
1142 | } | |
1143 | ||
50c1e9a9 DS |
1144 | void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw, |
1145 | enum ieee80211_rssi_event rssi_event) | |
7335613a | 1146 | { |
d0f76d68 | 1147 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
1148 | |
1149 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 1150 | mutex_lock(&priv->mutex); |
7335613a | 1151 | |
2152268f EG |
1152 | if (priv->cfg->bt_params && |
1153 | priv->cfg->bt_params->advanced_bt_coexist) { | |
7335613a WYG |
1154 | if (rssi_event == RSSI_EVENT_LOW) |
1155 | priv->bt_enable_pspoll = true; | |
1156 | else if (rssi_event == RSSI_EVENT_HIGH) | |
1157 | priv->bt_enable_pspoll = false; | |
1158 | ||
1159 | iwlagn_send_advance_bt_config(priv); | |
1160 | } else { | |
1161 | IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled," | |
1162 | "ignoring RSSI callback\n"); | |
1163 | } | |
1164 | ||
b1eea297 | 1165 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1166 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1167 | } | |
1168 | ||
50c1e9a9 DS |
1169 | int iwlagn_mac_set_tim(struct ieee80211_hw *hw, |
1170 | struct ieee80211_sta *sta, bool set) | |
7335613a | 1171 | { |
d0f76d68 | 1172 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 1173 | |
1ee158d8 | 1174 | queue_work(priv->workqueue, &priv->beacon_update); |
7335613a WYG |
1175 | |
1176 | return 0; | |
1177 | } | |
1178 | ||
50c1e9a9 DS |
1179 | int iwlagn_mac_conf_tx(struct ieee80211_hw *hw, |
1180 | struct ieee80211_vif *vif, u16 queue, | |
1181 | const struct ieee80211_tx_queue_params *params) | |
0b7a4c78 | 1182 | { |
d0f76d68 | 1183 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1184 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
1185 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
0b7a4c78 WYG |
1186 | int q; |
1187 | ||
1188 | if (WARN_ON(!ctx)) | |
1189 | return -EINVAL; | |
1190 | ||
1191 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1192 | ||
83626404 | 1193 | if (!iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1194 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
1195 | return -EIO; | |
1196 | } | |
1197 | ||
1198 | if (queue >= AC_NUM) { | |
1199 | IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); | |
1200 | return 0; | |
1201 | } | |
1202 | ||
1203 | q = AC_NUM - 1 - queue; | |
1204 | ||
b1eea297 | 1205 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1206 | |
1207 | ctx->qos_data.def_qos_parm.ac[q].cw_min = | |
1208 | cpu_to_le16(params->cw_min); | |
1209 | ctx->qos_data.def_qos_parm.ac[q].cw_max = | |
1210 | cpu_to_le16(params->cw_max); | |
1211 | ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
1212 | ctx->qos_data.def_qos_parm.ac[q].edca_txop = | |
1213 | cpu_to_le16((params->txop * 32)); | |
1214 | ||
1215 | ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
1216 | ||
b1eea297 | 1217 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1218 | |
1219 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1220 | return 0; | |
1221 | } | |
1222 | ||
50c1e9a9 | 1223 | int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw) |
0b7a4c78 | 1224 | { |
d0f76d68 | 1225 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1226 | |
1227 | return priv->ibss_manager == IWL_IBSS_MANAGER; | |
1228 | } | |
1229 | ||
1230 | static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx) | |
1231 | { | |
1232 | iwl_connection_init_rx_config(priv, ctx); | |
1233 | ||
1234 | iwlagn_set_rxon_chain(priv, ctx); | |
1235 | ||
1236 | return iwlagn_commit_rxon(priv, ctx); | |
1237 | } | |
1238 | ||
50c1e9a9 | 1239 | int iwl_setup_interface(struct iwl_priv *priv, struct iwl_rxon_context *ctx) |
0b7a4c78 WYG |
1240 | { |
1241 | struct ieee80211_vif *vif = ctx->vif; | |
1479177b | 1242 | int err, ac; |
0b7a4c78 | 1243 | |
b1eea297 | 1244 | lockdep_assert_held(&priv->mutex); |
0b7a4c78 WYG |
1245 | |
1246 | /* | |
1247 | * This variable will be correct only when there's just | |
1248 | * a single context, but all code using it is for hardware | |
1249 | * that supports only one context. | |
1250 | */ | |
1251 | priv->iw_mode = vif->type; | |
1252 | ||
1253 | ctx->is_active = true; | |
1254 | ||
1255 | err = iwl_set_mode(priv, ctx); | |
1256 | if (err) { | |
1257 | if (!ctx->always_active) | |
1258 | ctx->is_active = false; | |
1259 | return err; | |
1260 | } | |
1261 | ||
2152268f | 1262 | if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist && |
0b7a4c78 WYG |
1263 | vif->type == NL80211_IFTYPE_ADHOC) { |
1264 | /* | |
1265 | * pretend to have high BT traffic as long as we | |
1266 | * are operating in IBSS mode, as this will cause | |
1267 | * the rate scaling etc. to behave as intended. | |
1268 | */ | |
1269 | priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH; | |
1270 | } | |
1271 | ||
1479177b JB |
1272 | /* set up queue mappings */ |
1273 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
1274 | vif->hw_queue[ac] = ctx->ac_to_queue[ac]; | |
1275 | ||
1276 | if (vif->type == NL80211_IFTYPE_AP) | |
1277 | vif->cab_queue = ctx->mcast_queue; | |
1278 | else | |
1279 | vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; | |
1280 | ||
0b7a4c78 WYG |
1281 | return 0; |
1282 | } | |
1283 | ||
1284 | static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, | |
1479177b | 1285 | struct ieee80211_vif *vif) |
0b7a4c78 | 1286 | { |
d0f76d68 | 1287 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1288 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
1289 | struct iwl_rxon_context *tmp, *ctx = NULL; | |
1290 | int err; | |
1291 | enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif); | |
8db4c7e2 | 1292 | bool reset = false; |
0b7a4c78 WYG |
1293 | |
1294 | IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n", | |
1295 | viftype, vif->addr); | |
1296 | ||
1297 | cancel_delayed_work_sync(&priv->hw_roc_disable_work); | |
1298 | ||
b1eea297 | 1299 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1300 | |
1301 | iwlagn_disable_roc(priv); | |
1302 | ||
83626404 | 1303 | if (!iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1304 | IWL_WARN(priv, "Try to add interface when device not ready\n"); |
1305 | err = -EINVAL; | |
1306 | goto out; | |
1307 | } | |
1308 | ||
1309 | for_each_context(priv, tmp) { | |
1310 | u32 possible_modes = | |
1311 | tmp->interface_modes | tmp->exclusive_interface_modes; | |
1312 | ||
1313 | if (tmp->vif) { | |
8db4c7e2 SG |
1314 | /* On reset we need to add the same interface again */ |
1315 | if (tmp->vif == vif) { | |
1316 | reset = true; | |
1317 | ctx = tmp; | |
1318 | break; | |
1319 | } | |
1320 | ||
0b7a4c78 WYG |
1321 | /* check if this busy context is exclusive */ |
1322 | if (tmp->exclusive_interface_modes & | |
1323 | BIT(tmp->vif->type)) { | |
1324 | err = -EINVAL; | |
1325 | goto out; | |
1326 | } | |
1327 | continue; | |
1328 | } | |
1329 | ||
1330 | if (!(possible_modes & BIT(viftype))) | |
1331 | continue; | |
1332 | ||
1333 | /* have maybe usable context w/o interface */ | |
1334 | ctx = tmp; | |
1335 | break; | |
1336 | } | |
1337 | ||
1338 | if (!ctx) { | |
1339 | err = -EOPNOTSUPP; | |
1340 | goto out; | |
1341 | } | |
1342 | ||
1343 | vif_priv->ctx = ctx; | |
1344 | ctx->vif = vif; | |
1345 | ||
1346 | err = iwl_setup_interface(priv, ctx); | |
8db4c7e2 | 1347 | if (!err || reset) |
0b7a4c78 WYG |
1348 | goto out; |
1349 | ||
1350 | ctx->vif = NULL; | |
1351 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
1352 | out: | |
b1eea297 | 1353 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1354 | |
1355 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1356 | return err; | |
1357 | } | |
1358 | ||
50c1e9a9 DS |
1359 | void iwl_teardown_interface(struct iwl_priv *priv, |
1360 | struct ieee80211_vif *vif, | |
1361 | bool mode_change) | |
0b7a4c78 WYG |
1362 | { |
1363 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); | |
1364 | ||
b1eea297 | 1365 | lockdep_assert_held(&priv->mutex); |
0b7a4c78 WYG |
1366 | |
1367 | if (priv->scan_vif == vif) { | |
1368 | iwl_scan_cancel_timeout(priv, 200); | |
1369 | iwl_force_scan_end(priv); | |
1370 | } | |
1371 | ||
1372 | if (!mode_change) { | |
1373 | iwl_set_mode(priv, ctx); | |
1374 | if (!ctx->always_active) | |
1375 | ctx->is_active = false; | |
1376 | } | |
1377 | ||
1378 | /* | |
1379 | * When removing the IBSS interface, overwrite the | |
1380 | * BT traffic load with the stored one from the last | |
1381 | * notification, if any. If this is a device that | |
1382 | * doesn't implement this, this has no effect since | |
1383 | * both values are the same and zero. | |
1384 | */ | |
1385 | if (vif->type == NL80211_IFTYPE_ADHOC) | |
1386 | priv->bt_traffic_load = priv->last_bt_traffic_load; | |
1387 | } | |
1388 | ||
1389 | static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw, | |
1390 | struct ieee80211_vif *vif) | |
1391 | { | |
d0f76d68 | 1392 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1393 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
1394 | ||
1395 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1396 | ||
b1eea297 | 1397 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1398 | |
1399 | if (WARN_ON(ctx->vif != vif)) { | |
1400 | struct iwl_rxon_context *tmp; | |
1401 | IWL_ERR(priv, "ctx->vif = %p, vif = %p\n", ctx->vif, vif); | |
1402 | for_each_context(priv, tmp) | |
1403 | IWL_ERR(priv, "\tID = %d:\tctx = %p\tctx->vif = %p\n", | |
1404 | tmp->ctxid, tmp, tmp->vif); | |
1405 | } | |
1406 | ctx->vif = NULL; | |
1407 | ||
1408 | iwl_teardown_interface(priv, vif, false); | |
1409 | ||
b1eea297 | 1410 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1411 | |
1412 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1413 | ||
1414 | } | |
1415 | ||
1416 | static int iwlagn_mac_change_interface(struct ieee80211_hw *hw, | |
1417 | struct ieee80211_vif *vif, | |
1418 | enum nl80211_iftype newtype, bool newp2p) | |
1419 | { | |
d0f76d68 | 1420 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1421 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
1422 | struct iwl_rxon_context *bss_ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
1423 | struct iwl_rxon_context *tmp; | |
1424 | enum nl80211_iftype newviftype = newtype; | |
1425 | u32 interface_modes; | |
1426 | int err; | |
1427 | ||
1428 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1429 | ||
1430 | newtype = ieee80211_iftype_p2p(newtype, newp2p); | |
1431 | ||
b1eea297 | 1432 | mutex_lock(&priv->mutex); |
0b7a4c78 | 1433 | |
83626404 | 1434 | if (!ctx->vif || !iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1435 | /* |
1436 | * Huh? But wait ... this can maybe happen when | |
1437 | * we're in the middle of a firmware restart! | |
1438 | */ | |
1439 | err = -EBUSY; | |
1440 | goto out; | |
1441 | } | |
1442 | ||
1443 | interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes; | |
1444 | ||
1445 | if (!(interface_modes & BIT(newtype))) { | |
1446 | err = -EBUSY; | |
1447 | goto out; | |
1448 | } | |
1449 | ||
1450 | /* | |
1451 | * Refuse a change that should be done by moving from the PAN | |
1452 | * context to the BSS context instead, if the BSS context is | |
1453 | * available and can support the new interface type. | |
1454 | */ | |
1455 | if (ctx->ctxid == IWL_RXON_CTX_PAN && !bss_ctx->vif && | |
1456 | (bss_ctx->interface_modes & BIT(newtype) || | |
1457 | bss_ctx->exclusive_interface_modes & BIT(newtype))) { | |
1458 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
1459 | err = -EBUSY; | |
1460 | goto out; | |
1461 | } | |
1462 | ||
1463 | if (ctx->exclusive_interface_modes & BIT(newtype)) { | |
1464 | for_each_context(priv, tmp) { | |
1465 | if (ctx == tmp) | |
1466 | continue; | |
1467 | ||
1468 | if (!tmp->vif) | |
1469 | continue; | |
1470 | ||
1471 | /* | |
1472 | * The current mode switch would be exclusive, but | |
1473 | * another context is active ... refuse the switch. | |
1474 | */ | |
1475 | err = -EBUSY; | |
1476 | goto out; | |
1477 | } | |
1478 | } | |
1479 | ||
1480 | /* success */ | |
1481 | iwl_teardown_interface(priv, vif, true); | |
1482 | vif->type = newviftype; | |
1483 | vif->p2p = newp2p; | |
1484 | err = iwl_setup_interface(priv, ctx); | |
1485 | WARN_ON(err); | |
1486 | /* | |
1487 | * We've switched internally, but submitting to the | |
1488 | * device may have failed for some reason. Mask this | |
1489 | * error, because otherwise mac80211 will not switch | |
1490 | * (and set the interface type back) and we'll be | |
1491 | * out of sync with it. | |
1492 | */ | |
1493 | err = 0; | |
1494 | ||
1495 | out: | |
b1eea297 | 1496 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1497 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1498 | ||
1499 | return err; | |
1500 | } | |
1501 | ||
50c1e9a9 DS |
1502 | int iwlagn_mac_hw_scan(struct ieee80211_hw *hw, |
1503 | struct ieee80211_vif *vif, | |
1504 | struct cfg80211_scan_request *req) | |
ba4c5319 | 1505 | { |
d0f76d68 | 1506 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
ba4c5319 WYG |
1507 | int ret; |
1508 | ||
1509 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1510 | ||
1511 | if (req->n_channels == 0) | |
1512 | return -EINVAL; | |
1513 | ||
b1eea297 | 1514 | mutex_lock(&priv->mutex); |
ba4c5319 WYG |
1515 | |
1516 | /* | |
1517 | * If an internal scan is in progress, just set | |
1518 | * up the scan_request as per above. | |
1519 | */ | |
1520 | if (priv->scan_type != IWL_SCAN_NORMAL) { | |
1521 | IWL_DEBUG_SCAN(priv, | |
1522 | "SCAN request during internal scan - defer\n"); | |
1523 | priv->scan_request = req; | |
1524 | priv->scan_vif = vif; | |
1525 | ret = 0; | |
1526 | } else { | |
1527 | priv->scan_request = req; | |
1528 | priv->scan_vif = vif; | |
1529 | /* | |
1530 | * mac80211 will only ask for one band at a time | |
1531 | * so using channels[0] here is ok | |
1532 | */ | |
1533 | ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL, | |
1534 | req->channels[0]->band); | |
1535 | if (ret) { | |
1536 | priv->scan_request = NULL; | |
1537 | priv->scan_vif = NULL; | |
1538 | } | |
1539 | } | |
1540 | ||
1541 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1542 | ||
b1eea297 | 1543 | mutex_unlock(&priv->mutex); |
ba4c5319 WYG |
1544 | |
1545 | return ret; | |
1546 | } | |
1547 | ||
76b29331 WYG |
1548 | static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id) |
1549 | { | |
9451ca1a JB |
1550 | struct iwl_addsta_cmd cmd = { |
1551 | .mode = STA_CONTROL_MODIFY_MSK, | |
1552 | .station_flags_msk = STA_FLG_PWR_SAVE_MSK, | |
1553 | .sta.sta_id = sta_id, | |
1554 | }; | |
76b29331 | 1555 | |
9451ca1a | 1556 | iwl_send_add_sta(priv, &cmd, CMD_ASYNC); |
76b29331 WYG |
1557 | } |
1558 | ||
50c1e9a9 | 1559 | void iwlagn_mac_sta_notify(struct ieee80211_hw *hw, |
76b29331 WYG |
1560 | struct ieee80211_vif *vif, |
1561 | enum sta_notify_cmd cmd, | |
1562 | struct ieee80211_sta *sta) | |
1563 | { | |
d0f76d68 | 1564 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
76b29331 WYG |
1565 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
1566 | int sta_id; | |
1567 | ||
1568 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1569 | ||
1570 | switch (cmd) { | |
1571 | case STA_NOTIFY_SLEEP: | |
1572 | WARN_ON(!sta_priv->client); | |
1573 | sta_priv->asleep = true; | |
1574 | if (atomic_read(&sta_priv->pending_frames) > 0) | |
1575 | ieee80211_sta_block_awake(hw, sta, true); | |
1576 | break; | |
1577 | case STA_NOTIFY_AWAKE: | |
1578 | WARN_ON(!sta_priv->client); | |
1579 | if (!sta_priv->asleep) | |
1580 | break; | |
1581 | sta_priv->asleep = false; | |
1582 | sta_id = iwl_sta_id(sta); | |
1583 | if (sta_id != IWL_INVALID_STATION) | |
1584 | iwl_sta_modify_ps_wake(priv, sta_id); | |
1585 | break; | |
1586 | default: | |
1587 | break; | |
1588 | } | |
1589 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1590 | } | |
1591 | ||
7335613a WYG |
1592 | struct ieee80211_ops iwlagn_hw_ops = { |
1593 | .tx = iwlagn_mac_tx, | |
1594 | .start = iwlagn_mac_start, | |
1595 | .stop = iwlagn_mac_stop, | |
1596 | #ifdef CONFIG_PM_SLEEP | |
1597 | .suspend = iwlagn_mac_suspend, | |
1598 | .resume = iwlagn_mac_resume, | |
1599 | #endif | |
1600 | .add_interface = iwlagn_mac_add_interface, | |
1601 | .remove_interface = iwlagn_mac_remove_interface, | |
1602 | .change_interface = iwlagn_mac_change_interface, | |
1603 | .config = iwlagn_mac_config, | |
1604 | .configure_filter = iwlagn_configure_filter, | |
1605 | .set_key = iwlagn_mac_set_key, | |
1606 | .update_tkip_key = iwlagn_mac_update_tkip_key, | |
1607 | .set_rekey_data = iwlagn_mac_set_rekey_data, | |
1608 | .conf_tx = iwlagn_mac_conf_tx, | |
1609 | .bss_info_changed = iwlagn_bss_info_changed, | |
1610 | .ampdu_action = iwlagn_mac_ampdu_action, | |
1611 | .hw_scan = iwlagn_mac_hw_scan, | |
1612 | .sta_notify = iwlagn_mac_sta_notify, | |
fb5fe5b9 | 1613 | .sta_state = iwlagn_mac_sta_state, |
7335613a WYG |
1614 | .channel_switch = iwlagn_mac_channel_switch, |
1615 | .flush = iwlagn_mac_flush, | |
1616 | .tx_last_beacon = iwlagn_mac_tx_last_beacon, | |
1617 | .remain_on_channel = iwlagn_mac_remain_on_channel, | |
1618 | .cancel_remain_on_channel = iwlagn_mac_cancel_remain_on_channel, | |
1619 | .rssi_callback = iwlagn_mac_rssi_callback, | |
1620 | CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd) | |
1621 | CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump) | |
7335613a WYG |
1622 | .set_tim = iwlagn_mac_set_tim, |
1623 | }; | |
1624 | ||
1625 | /* This function both allocates and initializes hw and priv. */ | |
1626 | struct ieee80211_hw *iwl_alloc_all(void) | |
1627 | { | |
1628 | struct iwl_priv *priv; | |
d0f76d68 | 1629 | struct iwl_op_mode *op_mode; |
7335613a WYG |
1630 | /* mac80211 allocates memory for this device instance, including |
1631 | * space for this driver's private structure */ | |
1632 | struct ieee80211_hw *hw; | |
1633 | ||
d0f76d68 EG |
1634 | hw = ieee80211_alloc_hw(sizeof(struct iwl_priv) + |
1635 | sizeof(struct iwl_op_mode), &iwlagn_hw_ops); | |
7335613a WYG |
1636 | if (!hw) |
1637 | goto out; | |
1638 | ||
d0f76d68 EG |
1639 | op_mode = hw->priv; |
1640 | priv = IWL_OP_MODE_GET_DVM(op_mode); | |
7335613a WYG |
1641 | priv->hw = hw; |
1642 | ||
1643 | out: | |
1644 | return hw; | |
1645 | } |