Commit | Line | Data |
---|---|---|
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 | | |
149 | IEEE80211_HW_REPORTS_TX_ACK_STATUS; | |
150 | ||
151 | /* | |
152 | * Including the following line will crash some AP's. This | |
153 | * workaround removes the stimulus which causes the crash until | |
154 | * the AP software can be fixed. | |
155 | hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF; | |
156 | */ | |
157 | ||
158 | hw->flags |= IEEE80211_HW_SUPPORTS_PS | | |
e5610382 JB |
159 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS | |
160 | IEEE80211_HW_SCAN_WHILE_IDLE; | |
7335613a | 161 | |
9e295116 | 162 | if (priv->hw_params.sku & EEPROM_SKU_CAP_11N_ENABLE) |
7335613a WYG |
163 | hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | |
164 | IEEE80211_HW_SUPPORTS_STATIC_SMPS; | |
165 | ||
18c57d3c DS |
166 | #ifndef CONFIG_IWLWIFI_EXPERIMENTAL_MFP |
167 | /* enable 11w if the uCode advertise */ | |
7335613a | 168 | if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP) |
18c57d3c | 169 | #endif /* !CONFIG_IWLWIFI_EXPERIMENTAL_MFP */ |
7335613a WYG |
170 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; |
171 | ||
172 | hw->sta_data_size = sizeof(struct iwl_station_priv); | |
173 | hw->vif_data_size = sizeof(struct iwl_vif_priv); | |
174 | ||
175 | for_each_context(priv, ctx) { | |
176 | hw->wiphy->interface_modes |= ctx->interface_modes; | |
177 | hw->wiphy->interface_modes |= ctx->exclusive_interface_modes; | |
178 | } | |
179 | ||
180 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
181 | ||
182 | if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) { | |
183 | hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p; | |
184 | hw->wiphy->n_iface_combinations = | |
185 | ARRAY_SIZE(iwlagn_iface_combinations_p2p); | |
186 | } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { | |
187 | hw->wiphy->iface_combinations = | |
188 | iwlagn_iface_combinations_dualmode; | |
189 | hw->wiphy->n_iface_combinations = | |
190 | ARRAY_SIZE(iwlagn_iface_combinations_dualmode); | |
191 | } | |
192 | ||
193 | hw->wiphy->max_remain_on_channel_duration = 1000; | |
194 | ||
195 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | | |
196 | WIPHY_FLAG_DISABLE_BEACON_HINTS | | |
197 | WIPHY_FLAG_IBSS_RSN; | |
198 | ||
6dfa8d01 | 199 | if (priv->fw->img[IWL_UCODE_WOWLAN].sec[0].len && |
68e8dfda EG |
200 | priv->trans->ops->wowlan_suspend && |
201 | device_can_wakeup(priv->trans->dev)) { | |
7335613a WYG |
202 | hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | |
203 | WIPHY_WOWLAN_DISCONNECT | | |
204 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
205 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
65de7e84 | 206 | if (!iwlwifi_mod_params.sw_crypto) |
7335613a WYG |
207 | hw->wiphy->wowlan.flags |= |
208 | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | | |
209 | WIPHY_WOWLAN_GTK_REKEY_FAILURE; | |
210 | ||
211 | hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS; | |
212 | hw->wiphy->wowlan.pattern_min_len = | |
213 | IWLAGN_WOWLAN_MIN_PATTERN_LEN; | |
214 | hw->wiphy->wowlan.pattern_max_len = | |
215 | IWLAGN_WOWLAN_MAX_PATTERN_LEN; | |
216 | } | |
217 | ||
65de7e84 | 218 | if (iwlwifi_mod_params.power_save) |
7335613a WYG |
219 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
220 | else | |
221 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
222 | ||
223 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; | |
224 | /* we create the 802.11 header and a zero-length SSID element */ | |
225 | hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 2; | |
226 | ||
227 | /* Default value; 4 EDCA QOS priorities */ | |
228 | hw->queues = 4; | |
229 | ||
230 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; | |
231 | ||
232 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) | |
233 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
234 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
235 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) | |
236 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
237 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
238 | ||
68e8dfda | 239 | hw->wiphy->hw_version = priv->trans->hw_id; |
0ba958eb | 240 | |
7335613a WYG |
241 | iwl_leds_init(priv); |
242 | ||
243 | ret = ieee80211_register_hw(priv->hw); | |
244 | if (ret) { | |
245 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); | |
246 | return ret; | |
247 | } | |
248 | priv->mac80211_registered = 1; | |
249 | ||
250 | return 0; | |
251 | } | |
252 | ||
09af1403 DF |
253 | void iwlagn_mac_unregister(struct iwl_priv *priv) |
254 | { | |
255 | if (!priv->mac80211_registered) | |
256 | return; | |
257 | iwl_leds_exit(priv); | |
258 | ieee80211_unregister_hw(priv->hw); | |
259 | priv->mac80211_registered = 0; | |
260 | } | |
261 | ||
7335613a WYG |
262 | static int __iwl_up(struct iwl_priv *priv) |
263 | { | |
264 | struct iwl_rxon_context *ctx; | |
265 | int ret; | |
266 | ||
b1eea297 | 267 | lockdep_assert_held(&priv->mutex); |
7335613a | 268 | |
83626404 | 269 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
7335613a WYG |
270 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
271 | return -EIO; | |
272 | } | |
273 | ||
274 | for_each_context(priv, ctx) { | |
275 | ret = iwlagn_alloc_bcast_station(priv, ctx); | |
276 | if (ret) { | |
277 | iwl_dealloc_bcast_stations(priv); | |
278 | return ret; | |
279 | } | |
280 | } | |
281 | ||
e1991885 | 282 | ret = iwl_run_init_ucode(priv); |
7335613a WYG |
283 | if (ret) { |
284 | IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret); | |
285 | goto error; | |
286 | } | |
287 | ||
e1991885 | 288 | ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR); |
7335613a WYG |
289 | if (ret) { |
290 | IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret); | |
291 | goto error; | |
292 | } | |
293 | ||
294 | ret = iwl_alive_start(priv); | |
295 | if (ret) | |
296 | goto error; | |
297 | return 0; | |
298 | ||
299 | error: | |
83626404 | 300 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
78e5a464 | 301 | iwl_down(priv); |
83626404 | 302 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
7335613a WYG |
303 | |
304 | IWL_ERR(priv, "Unable to initialize device.\n"); | |
305 | return ret; | |
306 | } | |
307 | ||
308 | static int iwlagn_mac_start(struct ieee80211_hw *hw) | |
309 | { | |
d0f76d68 | 310 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
311 | int ret; |
312 | ||
313 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
314 | ||
315 | /* we should be verifying the device is ready to be opened */ | |
b1eea297 | 316 | mutex_lock(&priv->mutex); |
7335613a | 317 | ret = __iwl_up(priv); |
b1eea297 | 318 | mutex_unlock(&priv->mutex); |
7335613a WYG |
319 | if (ret) |
320 | return ret; | |
321 | ||
322 | IWL_DEBUG_INFO(priv, "Start UP work done.\n"); | |
323 | ||
324 | /* Now we should be done, and the READY bit should be set. */ | |
83626404 | 325 | if (WARN_ON(!test_bit(STATUS_READY, &priv->status))) |
7335613a WYG |
326 | ret = -EIO; |
327 | ||
328 | iwlagn_led_enable(priv); | |
329 | ||
330 | priv->is_open = 1; | |
331 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
332 | return 0; | |
333 | } | |
334 | ||
50c1e9a9 | 335 | void iwlagn_mac_stop(struct ieee80211_hw *hw) |
7335613a | 336 | { |
d0f76d68 | 337 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
338 | |
339 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
340 | ||
341 | if (!priv->is_open) | |
342 | return; | |
343 | ||
344 | priv->is_open = 0; | |
345 | ||
b1eea297 | 346 | mutex_lock(&priv->mutex); |
7335613a | 347 | iwl_down(priv); |
b1eea297 | 348 | mutex_unlock(&priv->mutex); |
78e5a464 EG |
349 | |
350 | iwl_cancel_deferred_work(priv); | |
7335613a | 351 | |
1ee158d8 | 352 | flush_workqueue(priv->workqueue); |
7335613a WYG |
353 | |
354 | /* User space software may expect getting rfkill changes | |
1df06bdc EG |
355 | * even if interface is down, trans->down will leave the RF |
356 | * kill interrupt enabled | |
357 | */ | |
218733cf | 358 | iwl_trans_stop_hw(priv->trans, false); |
7335613a WYG |
359 | |
360 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
361 | } | |
362 | ||
50c1e9a9 DS |
363 | void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw, |
364 | struct ieee80211_vif *vif, | |
365 | struct cfg80211_gtk_rekey_data *data) | |
7335613a | 366 | { |
d0f76d68 | 367 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 368 | |
65de7e84 | 369 | if (iwlwifi_mod_params.sw_crypto) |
7335613a WYG |
370 | return; |
371 | ||
372 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 373 | mutex_lock(&priv->mutex); |
7335613a WYG |
374 | |
375 | if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif) | |
376 | goto out; | |
377 | ||
378 | memcpy(priv->kek, data->kek, NL80211_KEK_LEN); | |
379 | memcpy(priv->kck, data->kck, NL80211_KCK_LEN); | |
380 | priv->replay_ctr = | |
381 | cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); | |
382 | priv->have_rekey_data = true; | |
383 | ||
384 | out: | |
b1eea297 | 385 | mutex_unlock(&priv->mutex); |
7335613a WYG |
386 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
387 | } | |
388 | ||
389 | #ifdef CONFIG_PM_SLEEP | |
7335613a | 390 | |
50c1e9a9 | 391 | int iwlagn_mac_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) |
7335613a | 392 | { |
d0f76d68 | 393 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 394 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
023ca58f | 395 | int ret; |
7335613a WYG |
396 | |
397 | if (WARN_ON(!wowlan)) | |
398 | return -EINVAL; | |
399 | ||
400 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 401 | mutex_lock(&priv->mutex); |
7335613a WYG |
402 | |
403 | /* Don't attempt WoWLAN when not associated, tear down instead. */ | |
404 | if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION || | |
405 | !iwl_is_associated_ctx(ctx)) { | |
406 | ret = 1; | |
407 | goto out; | |
408 | } | |
409 | ||
ea886a60 | 410 | ret = iwlagn_suspend(priv, wowlan); |
7335613a WYG |
411 | if (ret) |
412 | goto error; | |
413 | ||
68e8dfda | 414 | device_set_wakeup_enable(priv->trans->dev, true); |
7335613a | 415 | |
68e8dfda | 416 | iwl_trans_wowlan_suspend(priv->trans); |
7335613a WYG |
417 | |
418 | goto out; | |
419 | ||
420 | error: | |
15b86bff | 421 | priv->wowlan = false; |
7335613a WYG |
422 | iwlagn_prepare_restart(priv); |
423 | ieee80211_restart_hw(priv->hw); | |
424 | out: | |
b1eea297 | 425 | mutex_unlock(&priv->mutex); |
7335613a WYG |
426 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
427 | ||
428 | return ret; | |
429 | } | |
430 | ||
431 | static int iwlagn_mac_resume(struct ieee80211_hw *hw) | |
432 | { | |
d0f76d68 | 433 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
434 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
435 | struct ieee80211_vif *vif; | |
436 | unsigned long flags; | |
437 | u32 base, status = 0xffffffff; | |
438 | int ret = -EIO; | |
439 | ||
440 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 441 | mutex_lock(&priv->mutex); |
7335613a | 442 | |
68e8dfda | 443 | iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR, |
7335613a WYG |
444 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); |
445 | ||
2fdfc476 | 446 | base = priv->device_pointers.error_event_table; |
7335613a | 447 | if (iwlagn_hw_valid_rtc_data_addr(base)) { |
68e8dfda EG |
448 | spin_lock_irqsave(&priv->trans->reg_lock, flags); |
449 | ret = iwl_grab_nic_access_silent(priv->trans); | |
bfe4b80e | 450 | if (likely(ret == 0)) { |
68e8dfda EG |
451 | iwl_write32(priv->trans, HBUS_TARG_MEM_RADDR, base); |
452 | status = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT); | |
453 | iwl_release_nic_access(priv->trans); | |
7335613a | 454 | } |
68e8dfda | 455 | spin_unlock_irqrestore(&priv->trans->reg_lock, flags); |
7335613a WYG |
456 | |
457 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
458 | if (ret == 0) { | |
a855f7ee OH |
459 | const struct fw_img *img; |
460 | ||
6dfa8d01 DS |
461 | img = &(priv->fw->img[IWL_UCODE_WOWLAN]); |
462 | if (!priv->wowlan_sram) { | |
7335613a | 463 | priv->wowlan_sram = |
6dfa8d01 | 464 | kzalloc(img->sec[IWL_UCODE_SECTION_DATA].len, |
7335613a | 465 | GFP_KERNEL); |
6dfa8d01 | 466 | } |
7335613a WYG |
467 | |
468 | if (priv->wowlan_sram) | |
469 | _iwl_read_targ_mem_words( | |
68e8dfda | 470 | priv->trans, 0x800000, |
6dfa8d01 DS |
471 | priv->wowlan_sram, |
472 | img->sec[IWL_UCODE_SECTION_DATA].len / 4); | |
7335613a WYG |
473 | } |
474 | #endif | |
475 | } | |
476 | ||
477 | /* we'll clear ctx->vif during iwlagn_prepare_restart() */ | |
478 | vif = ctx->vif; | |
479 | ||
15b86bff | 480 | priv->wowlan = false; |
7335613a | 481 | |
68e8dfda | 482 | device_set_wakeup_enable(priv->trans->dev, false); |
7335613a WYG |
483 | |
484 | iwlagn_prepare_restart(priv); | |
485 | ||
486 | memset((void *)&ctx->active, 0, sizeof(ctx->active)); | |
487 | iwl_connection_init_rx_config(priv, ctx); | |
488 | iwlagn_set_rxon_chain(priv, ctx); | |
489 | ||
b1eea297 | 490 | mutex_unlock(&priv->mutex); |
7335613a WYG |
491 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
492 | ||
493 | ieee80211_resume_disconnect(vif); | |
494 | ||
495 | return 1; | |
496 | } | |
497 | ||
498 | #endif | |
499 | ||
50c1e9a9 | 500 | void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
7335613a | 501 | { |
d0f76d68 | 502 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 503 | |
7335613a WYG |
504 | IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
505 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); | |
506 | ||
507 | if (iwlagn_tx_skb(priv, skb)) | |
508 | dev_kfree_skb_any(skb); | |
7335613a WYG |
509 | } |
510 | ||
50c1e9a9 DS |
511 | void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw, |
512 | struct ieee80211_vif *vif, | |
513 | struct ieee80211_key_conf *keyconf, | |
514 | struct ieee80211_sta *sta, | |
515 | u32 iv32, u16 *phase1key) | |
7335613a | 516 | { |
d0f76d68 | 517 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
518 | |
519 | iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key); | |
520 | } | |
521 | ||
50c1e9a9 DS |
522 | int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
523 | struct ieee80211_vif *vif, | |
524 | struct ieee80211_sta *sta, | |
525 | struct ieee80211_key_conf *key) | |
7335613a | 526 | { |
d0f76d68 | 527 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
528 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
529 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
530 | int ret; | |
531 | bool is_default_wep_key = false; | |
532 | ||
533 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
534 | ||
65de7e84 | 535 | if (iwlwifi_mod_params.sw_crypto) { |
7335613a WYG |
536 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); |
537 | return -EOPNOTSUPP; | |
538 | } | |
539 | ||
a7e12c8e JB |
540 | switch (key->cipher) { |
541 | case WLAN_CIPHER_SUITE_TKIP: | |
542 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
543 | /* fall through */ | |
544 | case WLAN_CIPHER_SUITE_CCMP: | |
545 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
546 | break; | |
547 | default: | |
548 | break; | |
549 | } | |
550 | ||
7335613a WYG |
551 | /* |
552 | * We could program these keys into the hardware as well, but we | |
553 | * don't expect much multicast traffic in IBSS and having keys | |
554 | * for more stations is probably more useful. | |
555 | * | |
556 | * Mark key TX-only and return 0. | |
557 | */ | |
558 | if (vif->type == NL80211_IFTYPE_ADHOC && | |
559 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { | |
560 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
561 | return 0; | |
562 | } | |
563 | ||
564 | /* If they key was TX-only, accept deletion */ | |
565 | if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET) | |
566 | return 0; | |
567 | ||
b1eea297 | 568 | mutex_lock(&priv->mutex); |
7335613a WYG |
569 | iwl_scan_cancel_timeout(priv, 100); |
570 | ||
571 | BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT); | |
572 | ||
573 | /* | |
574 | * If we are getting WEP group key and we didn't receive any key mapping | |
575 | * so far, we are in legacy wep mode (group key only), otherwise we are | |
576 | * in 1X mode. | |
577 | * In legacy wep mode, we use another host command to the uCode. | |
578 | */ | |
579 | if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || | |
580 | key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) { | |
581 | if (cmd == SET_KEY) | |
582 | is_default_wep_key = !ctx->key_mapping_keys; | |
583 | else | |
584 | is_default_wep_key = | |
585 | key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT; | |
586 | } | |
587 | ||
588 | ||
589 | switch (cmd) { | |
590 | case SET_KEY: | |
591 | if (is_default_wep_key) { | |
592 | ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key); | |
593 | break; | |
594 | } | |
595 | ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta); | |
596 | if (ret) { | |
597 | /* | |
598 | * can't add key for RX, but we don't need it | |
599 | * in the device for TX so still return 0 | |
600 | */ | |
601 | ret = 0; | |
602 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
603 | } | |
604 | ||
605 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); | |
606 | break; | |
607 | case DISABLE_KEY: | |
608 | if (is_default_wep_key) | |
609 | ret = iwl_remove_default_wep_key(priv, ctx, key); | |
610 | else | |
611 | ret = iwl_remove_dynamic_key(priv, ctx, key, sta); | |
612 | ||
613 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); | |
614 | break; | |
615 | default: | |
616 | ret = -EINVAL; | |
617 | } | |
618 | ||
b1eea297 | 619 | mutex_unlock(&priv->mutex); |
7335613a WYG |
620 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
621 | ||
622 | return ret; | |
623 | } | |
624 | ||
50c1e9a9 DS |
625 | int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, |
626 | struct ieee80211_vif *vif, | |
627 | enum ieee80211_ampdu_mlme_action action, | |
628 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, | |
629 | u8 buf_size) | |
7335613a | 630 | { |
d0f76d68 | 631 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
632 | int ret = -EINVAL; |
633 | struct iwl_station_priv *sta_priv = (void *) sta->drv_priv; | |
7335613a WYG |
634 | |
635 | IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", | |
636 | sta->addr, tid); | |
637 | ||
9e295116 | 638 | if (!(priv->hw_params.sku & EEPROM_SKU_CAP_11N_ENABLE)) |
7335613a WYG |
639 | return -EACCES; |
640 | ||
641 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 642 | mutex_lock(&priv->mutex); |
7335613a WYG |
643 | |
644 | switch (action) { | |
645 | case IEEE80211_AMPDU_RX_START: | |
65de7e84 | 646 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) |
7428994d | 647 | break; |
7335613a WYG |
648 | IWL_DEBUG_HT(priv, "start Rx\n"); |
649 | ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn); | |
650 | break; | |
651 | case IEEE80211_AMPDU_RX_STOP: | |
652 | IWL_DEBUG_HT(priv, "stop Rx\n"); | |
653 | ret = iwl_sta_rx_agg_stop(priv, sta, tid); | |
7335613a WYG |
654 | break; |
655 | case IEEE80211_AMPDU_TX_START: | |
68e8dfda | 656 | if (!priv->trans->ops->tx_agg_setup) |
9eae88fa | 657 | break; |
65de7e84 | 658 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) |
7428994d | 659 | break; |
7335613a WYG |
660 | IWL_DEBUG_HT(priv, "start Tx\n"); |
661 | ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn); | |
662 | break; | |
663 | case IEEE80211_AMPDU_TX_STOP: | |
664 | IWL_DEBUG_HT(priv, "stop Tx\n"); | |
665 | ret = iwlagn_tx_agg_stop(priv, vif, sta, tid); | |
666 | if ((ret == 0) && (priv->agg_tids_count > 0)) { | |
667 | priv->agg_tids_count--; | |
668 | IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", | |
669 | priv->agg_tids_count); | |
670 | } | |
b9ad70da | 671 | if (!priv->agg_tids_count && |
9e295116 | 672 | priv->hw_params.use_rts_for_aggregation) { |
7335613a WYG |
673 | /* |
674 | * switch off RTS/CTS if it was previously enabled | |
675 | */ | |
676 | sta_priv->lq_sta.lq.general_params.flags &= | |
677 | ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; | |
678 | iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), | |
679 | &sta_priv->lq_sta.lq, CMD_ASYNC, false); | |
680 | } | |
681 | break; | |
682 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
822e8b2a | 683 | ret = iwlagn_tx_agg_oper(priv, vif, sta, tid, buf_size); |
7335613a WYG |
684 | break; |
685 | } | |
b1eea297 | 686 | mutex_unlock(&priv->mutex); |
7335613a WYG |
687 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
688 | return ret; | |
689 | } | |
690 | ||
691 | static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, | |
692 | struct ieee80211_vif *vif, | |
693 | struct ieee80211_sta *sta) | |
694 | { | |
d0f76d68 | 695 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
696 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
697 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
698 | bool is_ap = vif->type == NL80211_IFTYPE_STATION; | |
fb5fe5b9 | 699 | int ret; |
7335613a WYG |
700 | u8 sta_id; |
701 | ||
7335613a WYG |
702 | IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", |
703 | sta->addr); | |
704 | sta_priv->sta_id = IWL_INVALID_STATION; | |
705 | ||
706 | atomic_set(&sta_priv->pending_frames, 0); | |
707 | if (vif->type == NL80211_IFTYPE_AP) | |
708 | sta_priv->client = true; | |
709 | ||
710 | ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr, | |
711 | is_ap, sta, &sta_id); | |
712 | if (ret) { | |
713 | IWL_ERR(priv, "Unable to add station %pM (%d)\n", | |
714 | sta->addr, ret); | |
715 | /* Should we return success if return code is EEXIST ? */ | |
fb5fe5b9 | 716 | return ret; |
7335613a WYG |
717 | } |
718 | ||
719 | sta_priv->sta_id = sta_id; | |
720 | ||
fb5fe5b9 JB |
721 | return 0; |
722 | } | |
723 | ||
724 | static int iwlagn_mac_sta_remove(struct ieee80211_hw *hw, | |
725 | struct ieee80211_vif *vif, | |
726 | struct ieee80211_sta *sta) | |
727 | { | |
728 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
729 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
730 | int ret; | |
731 | ||
97420515 JB |
732 | IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", sta->addr); |
733 | ||
734 | if (vif->type == NL80211_IFTYPE_STATION) { | |
735 | /* | |
736 | * Station will be removed from device when the RXON | |
737 | * is set to unassociated -- just deactivate it here | |
738 | * to avoid re-programming it. | |
739 | */ | |
740 | ret = 0; | |
741 | iwl_deactivate_station(priv, sta_priv->sta_id, sta->addr); | |
742 | } else { | |
743 | ret = iwl_remove_station(priv, sta_priv->sta_id, sta->addr); | |
744 | if (ret) | |
745 | IWL_DEBUG_QUIET_RFKILL(priv, | |
746 | "Error removing station %pM\n", sta->addr); | |
747 | } | |
fb5fe5b9 JB |
748 | return ret; |
749 | } | |
750 | ||
50c1e9a9 DS |
751 | int iwlagn_mac_sta_state(struct ieee80211_hw *hw, |
752 | struct ieee80211_vif *vif, | |
753 | struct ieee80211_sta *sta, | |
754 | enum ieee80211_sta_state old_state, | |
755 | enum ieee80211_sta_state new_state) | |
fb5fe5b9 JB |
756 | { |
757 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
ab0bd5b3 | 758 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
fb5fe5b9 | 759 | enum { |
ab0bd5b3 | 760 | NONE, ADD, REMOVE, HT_RATE_INIT, ADD_RATE_INIT, |
fb5fe5b9 JB |
761 | } op = NONE; |
762 | int ret; | |
763 | ||
764 | IWL_DEBUG_MAC80211(priv, "station %pM state change %d->%d\n", | |
765 | sta->addr, old_state, new_state); | |
766 | ||
b1eea297 | 767 | mutex_lock(&priv->mutex); |
fb5fe5b9 JB |
768 | if (vif->type == NL80211_IFTYPE_STATION) { |
769 | if (old_state == IEEE80211_STA_NOTEXIST && | |
770 | new_state == IEEE80211_STA_NONE) | |
771 | op = ADD; | |
772 | else if (old_state == IEEE80211_STA_NONE && | |
773 | new_state == IEEE80211_STA_NOTEXIST) | |
774 | op = REMOVE; | |
775 | else if (old_state == IEEE80211_STA_AUTH && | |
776 | new_state == IEEE80211_STA_ASSOC) | |
ab0bd5b3 | 777 | op = HT_RATE_INIT; |
fb5fe5b9 JB |
778 | } else { |
779 | if (old_state == IEEE80211_STA_AUTH && | |
780 | new_state == IEEE80211_STA_ASSOC) | |
781 | op = ADD_RATE_INIT; | |
782 | else if (old_state == IEEE80211_STA_ASSOC && | |
783 | new_state == IEEE80211_STA_AUTH) | |
784 | op = REMOVE; | |
785 | } | |
786 | ||
787 | switch (op) { | |
788 | case ADD: | |
789 | ret = iwlagn_mac_sta_add(hw, vif, sta); | |
790 | break; | |
791 | case REMOVE: | |
792 | ret = iwlagn_mac_sta_remove(hw, vif, sta); | |
793 | break; | |
794 | case ADD_RATE_INIT: | |
795 | ret = iwlagn_mac_sta_add(hw, vif, sta); | |
796 | if (ret) | |
797 | break; | |
fb5fe5b9 JB |
798 | /* Initialize rate scaling */ |
799 | IWL_DEBUG_INFO(priv, | |
800 | "Initializing rate scaling for station %pM\n", | |
801 | sta->addr); | |
802 | iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); | |
803 | ret = 0; | |
804 | break; | |
ab0bd5b3 JB |
805 | case HT_RATE_INIT: |
806 | /* Initialize rate scaling */ | |
807 | ret = iwl_sta_update_ht(priv, vif_priv->ctx, sta); | |
808 | if (ret) | |
809 | break; | |
810 | IWL_DEBUG_INFO(priv, | |
811 | "Initializing rate scaling for station %pM\n", | |
812 | sta->addr); | |
813 | iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); | |
814 | ret = 0; | |
815 | break; | |
fb5fe5b9 JB |
816 | default: |
817 | ret = 0; | |
818 | break; | |
819 | } | |
820 | ||
821 | /* | |
822 | * mac80211 might WARN if we fail, but due the way we | |
823 | * (badly) handle hard rfkill, we might fail here | |
824 | */ | |
83626404 | 825 | if (iwl_is_rfkill(priv)) |
fb5fe5b9 JB |
826 | ret = 0; |
827 | ||
b1eea297 | 828 | mutex_unlock(&priv->mutex); |
7335613a WYG |
829 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
830 | ||
831 | return ret; | |
832 | } | |
833 | ||
50c1e9a9 DS |
834 | void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, |
835 | struct ieee80211_channel_switch *ch_switch) | |
7335613a | 836 | { |
d0f76d68 | 837 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
838 | const struct iwl_channel_info *ch_info; |
839 | struct ieee80211_conf *conf = &hw->conf; | |
840 | struct ieee80211_channel *channel = ch_switch->channel; | |
841 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; | |
842 | /* | |
843 | * MULTI-FIXME | |
844 | * When we add support for multiple interfaces, we need to | |
845 | * revisit this. The channel switch command in the device | |
846 | * only affects the BSS context, but what does that really | |
847 | * mean? And what if we get a CSA on the second interface? | |
848 | * This needs a lot of work. | |
849 | */ | |
850 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
851 | u16 ch; | |
852 | ||
853 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
854 | ||
b1eea297 | 855 | mutex_lock(&priv->mutex); |
7335613a | 856 | |
83626404 | 857 | if (iwl_is_rfkill(priv)) |
7335613a WYG |
858 | goto out; |
859 | ||
83626404 DF |
860 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || |
861 | test_bit(STATUS_SCANNING, &priv->status) || | |
862 | test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) | |
7335613a WYG |
863 | goto out; |
864 | ||
865 | if (!iwl_is_associated_ctx(ctx)) | |
866 | goto out; | |
867 | ||
e9676695 | 868 | if (!priv->lib->set_channel_switch) |
7335613a WYG |
869 | goto out; |
870 | ||
871 | ch = channel->hw_value; | |
872 | if (le16_to_cpu(ctx->active.channel) == ch) | |
873 | goto out; | |
874 | ||
875 | ch_info = iwl_get_channel_info(priv, channel->band, ch); | |
876 | if (!is_channel_valid(ch_info)) { | |
877 | IWL_DEBUG_MAC80211(priv, "invalid channel\n"); | |
878 | goto out; | |
879 | } | |
880 | ||
7335613a WYG |
881 | priv->current_ht_config.smps = conf->smps_mode; |
882 | ||
883 | /* Configure HT40 channels */ | |
884 | ctx->ht.enabled = conf_is_ht(conf); | |
137ce797 WYG |
885 | if (ctx->ht.enabled) |
886 | iwlagn_config_ht40(conf, ctx); | |
887 | else | |
7335613a WYG |
888 | ctx->ht.is_40mhz = false; |
889 | ||
890 | if ((le16_to_cpu(ctx->staging.channel) != ch)) | |
891 | ctx->staging.flags = 0; | |
892 | ||
893 | iwl_set_rxon_channel(priv, channel, ctx); | |
894 | iwl_set_rxon_ht(priv, ht_conf); | |
895 | iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif); | |
896 | ||
7335613a WYG |
897 | /* |
898 | * at this point, staging_rxon has the | |
899 | * configuration for channel switch | |
900 | */ | |
83626404 | 901 | set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); |
7335613a | 902 | priv->switch_channel = cpu_to_le16(ch); |
e9676695 | 903 | if (priv->lib->set_channel_switch(priv, ch_switch)) { |
83626404 | 904 | clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); |
7335613a WYG |
905 | priv->switch_channel = 0; |
906 | ieee80211_chswitch_done(ctx->vif, false); | |
907 | } | |
908 | ||
909 | out: | |
b1eea297 | 910 | mutex_unlock(&priv->mutex); |
7335613a WYG |
911 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
912 | } | |
913 | ||
bedec3a6 MV |
914 | void iwl_chswitch_done(struct iwl_priv *priv, bool is_success) |
915 | { | |
916 | /* | |
917 | * MULTI-FIXME | |
918 | * See iwlagn_mac_channel_switch. | |
919 | */ | |
920 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
921 | ||
922 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
923 | return; | |
924 | ||
925 | if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) | |
926 | ieee80211_chswitch_done(ctx->vif, is_success); | |
927 | } | |
928 | ||
50c1e9a9 DS |
929 | void iwlagn_configure_filter(struct ieee80211_hw *hw, |
930 | unsigned int changed_flags, | |
931 | unsigned int *total_flags, | |
932 | u64 multicast) | |
7335613a | 933 | { |
d0f76d68 | 934 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
935 | __le32 filter_or = 0, filter_nand = 0; |
936 | struct iwl_rxon_context *ctx; | |
937 | ||
938 | #define CHK(test, flag) do { \ | |
939 | if (*total_flags & (test)) \ | |
940 | filter_or |= (flag); \ | |
941 | else \ | |
942 | filter_nand |= (flag); \ | |
943 | } while (0) | |
944 | ||
945 | IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", | |
946 | changed_flags, *total_flags); | |
947 | ||
948 | CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); | |
949 | /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */ | |
950 | CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK); | |
951 | CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); | |
952 | ||
953 | #undef CHK | |
954 | ||
b1eea297 | 955 | mutex_lock(&priv->mutex); |
7335613a WYG |
956 | |
957 | for_each_context(priv, ctx) { | |
958 | ctx->staging.filter_flags &= ~filter_nand; | |
959 | ctx->staging.filter_flags |= filter_or; | |
960 | ||
961 | /* | |
962 | * Not committing directly because hardware can perform a scan, | |
963 | * but we'll eventually commit the filter flags change anyway. | |
964 | */ | |
965 | } | |
966 | ||
b1eea297 | 967 | mutex_unlock(&priv->mutex); |
7335613a WYG |
968 | |
969 | /* | |
970 | * Receiving all multicast frames is always enabled by the | |
971 | * default flags setup in iwl_connection_init_rx_config() | |
972 | * since we currently do not support programming multicast | |
973 | * filters into the device. | |
974 | */ | |
975 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | | |
976 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; | |
977 | } | |
978 | ||
50c1e9a9 | 979 | void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop) |
7335613a | 980 | { |
d0f76d68 | 981 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 982 | |
b1eea297 | 983 | mutex_lock(&priv->mutex); |
7335613a WYG |
984 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
985 | ||
83626404 | 986 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
7335613a WYG |
987 | IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n"); |
988 | goto done; | |
989 | } | |
83626404 | 990 | if (iwl_is_rfkill(priv)) { |
7335613a WYG |
991 | IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n"); |
992 | goto done; | |
993 | } | |
994 | ||
995 | /* | |
996 | * mac80211 will not push any more frames for transmit | |
997 | * until the flush is completed | |
998 | */ | |
999 | if (drop) { | |
1000 | IWL_DEBUG_MAC80211(priv, "send flush command\n"); | |
1001 | if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) { | |
1002 | IWL_ERR(priv, "flush request fail\n"); | |
1003 | goto done; | |
1004 | } | |
1005 | } | |
1006 | IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n"); | |
68e8dfda | 1007 | iwl_trans_wait_tx_queue_empty(priv->trans); |
7335613a | 1008 | done: |
b1eea297 | 1009 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1010 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1011 | } | |
1012 | ||
1013 | static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw, | |
1014 | struct ieee80211_channel *channel, | |
1015 | enum nl80211_channel_type channel_type, | |
1016 | int duration) | |
1017 | { | |
d0f76d68 | 1018 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
1019 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN]; |
1020 | int err = 0; | |
1021 | ||
a18f61bc | 1022 | if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) |
7335613a WYG |
1023 | return -EOPNOTSUPP; |
1024 | ||
1025 | if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT))) | |
1026 | return -EOPNOTSUPP; | |
1027 | ||
1028 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 1029 | mutex_lock(&priv->mutex); |
7335613a | 1030 | |
83626404 | 1031 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { |
7335613a WYG |
1032 | err = -EBUSY; |
1033 | goto out; | |
1034 | } | |
1035 | ||
1036 | priv->hw_roc_channel = channel; | |
1037 | priv->hw_roc_chantype = channel_type; | |
3ddf6bef JB |
1038 | /* convert from ms to TU */ |
1039 | priv->hw_roc_duration = DIV_ROUND_UP(1000 * duration, 1024); | |
7335613a WYG |
1040 | priv->hw_roc_start_notified = false; |
1041 | cancel_delayed_work(&priv->hw_roc_disable_work); | |
1042 | ||
1043 | if (!ctx->is_active) { | |
a69cd040 JB |
1044 | static const struct iwl_qos_info default_qos_data = { |
1045 | .def_qos_parm = { | |
1046 | .ac[0] = { | |
1047 | .cw_min = cpu_to_le16(3), | |
1048 | .cw_max = cpu_to_le16(7), | |
1049 | .aifsn = 2, | |
1050 | .edca_txop = cpu_to_le16(1504), | |
1051 | }, | |
1052 | .ac[1] = { | |
1053 | .cw_min = cpu_to_le16(7), | |
1054 | .cw_max = cpu_to_le16(15), | |
1055 | .aifsn = 2, | |
1056 | .edca_txop = cpu_to_le16(3008), | |
1057 | }, | |
1058 | .ac[2] = { | |
1059 | .cw_min = cpu_to_le16(15), | |
1060 | .cw_max = cpu_to_le16(1023), | |
1061 | .aifsn = 3, | |
1062 | }, | |
1063 | .ac[3] = { | |
1064 | .cw_min = cpu_to_le16(15), | |
1065 | .cw_max = cpu_to_le16(1023), | |
1066 | .aifsn = 7, | |
1067 | }, | |
1068 | }, | |
1069 | }; | |
1070 | ||
7335613a | 1071 | ctx->is_active = true; |
a69cd040 | 1072 | ctx->qos_data = default_qos_data; |
7335613a WYG |
1073 | ctx->staging.dev_type = RXON_DEV_TYPE_P2P; |
1074 | memcpy(ctx->staging.node_addr, | |
1075 | priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, | |
1076 | ETH_ALEN); | |
1077 | memcpy(ctx->staging.bssid_addr, | |
1078 | priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, | |
1079 | ETH_ALEN); | |
1080 | err = iwlagn_commit_rxon(priv, ctx); | |
1081 | if (err) | |
1082 | goto out; | |
1083 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK | | |
1084 | RXON_FILTER_PROMISC_MSK | | |
1085 | RXON_FILTER_CTL2HOST_MSK; | |
1086 | ||
1087 | err = iwlagn_commit_rxon(priv, ctx); | |
1088 | if (err) { | |
1089 | iwlagn_disable_roc(priv); | |
1090 | goto out; | |
1091 | } | |
1092 | priv->hw_roc_setup = true; | |
1093 | } | |
1094 | ||
1095 | err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band); | |
1096 | if (err) | |
1097 | iwlagn_disable_roc(priv); | |
1098 | ||
1099 | out: | |
b1eea297 | 1100 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1101 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1102 | ||
1103 | return err; | |
1104 | } | |
1105 | ||
50c1e9a9 | 1106 | int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw *hw) |
7335613a | 1107 | { |
d0f76d68 | 1108 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 1109 | |
a18f61bc | 1110 | if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) |
7335613a WYG |
1111 | return -EOPNOTSUPP; |
1112 | ||
1113 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 1114 | mutex_lock(&priv->mutex); |
7335613a WYG |
1115 | iwl_scan_cancel_timeout(priv, priv->hw_roc_duration); |
1116 | iwlagn_disable_roc(priv); | |
b1eea297 | 1117 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1118 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1119 | ||
1120 | return 0; | |
1121 | } | |
1122 | ||
50c1e9a9 DS |
1123 | void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw, |
1124 | enum ieee80211_rssi_event rssi_event) | |
7335613a | 1125 | { |
d0f76d68 | 1126 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
1127 | |
1128 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 1129 | mutex_lock(&priv->mutex); |
7335613a | 1130 | |
2152268f EG |
1131 | if (priv->cfg->bt_params && |
1132 | priv->cfg->bt_params->advanced_bt_coexist) { | |
7335613a WYG |
1133 | if (rssi_event == RSSI_EVENT_LOW) |
1134 | priv->bt_enable_pspoll = true; | |
1135 | else if (rssi_event == RSSI_EVENT_HIGH) | |
1136 | priv->bt_enable_pspoll = false; | |
1137 | ||
1138 | iwlagn_send_advance_bt_config(priv); | |
1139 | } else { | |
1140 | IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled," | |
1141 | "ignoring RSSI callback\n"); | |
1142 | } | |
1143 | ||
b1eea297 | 1144 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1145 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1146 | } | |
1147 | ||
50c1e9a9 DS |
1148 | int iwlagn_mac_set_tim(struct ieee80211_hw *hw, |
1149 | struct ieee80211_sta *sta, bool set) | |
7335613a | 1150 | { |
d0f76d68 | 1151 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 1152 | |
1ee158d8 | 1153 | queue_work(priv->workqueue, &priv->beacon_update); |
7335613a WYG |
1154 | |
1155 | return 0; | |
1156 | } | |
1157 | ||
50c1e9a9 DS |
1158 | int iwlagn_mac_conf_tx(struct ieee80211_hw *hw, |
1159 | struct ieee80211_vif *vif, u16 queue, | |
1160 | const struct ieee80211_tx_queue_params *params) | |
0b7a4c78 | 1161 | { |
d0f76d68 | 1162 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1163 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
1164 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
0b7a4c78 WYG |
1165 | int q; |
1166 | ||
1167 | if (WARN_ON(!ctx)) | |
1168 | return -EINVAL; | |
1169 | ||
1170 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1171 | ||
83626404 | 1172 | if (!iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1173 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
1174 | return -EIO; | |
1175 | } | |
1176 | ||
1177 | if (queue >= AC_NUM) { | |
1178 | IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); | |
1179 | return 0; | |
1180 | } | |
1181 | ||
1182 | q = AC_NUM - 1 - queue; | |
1183 | ||
b1eea297 | 1184 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1185 | |
1186 | ctx->qos_data.def_qos_parm.ac[q].cw_min = | |
1187 | cpu_to_le16(params->cw_min); | |
1188 | ctx->qos_data.def_qos_parm.ac[q].cw_max = | |
1189 | cpu_to_le16(params->cw_max); | |
1190 | ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
1191 | ctx->qos_data.def_qos_parm.ac[q].edca_txop = | |
1192 | cpu_to_le16((params->txop * 32)); | |
1193 | ||
1194 | ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
1195 | ||
b1eea297 | 1196 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1197 | |
1198 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1199 | return 0; | |
1200 | } | |
1201 | ||
50c1e9a9 | 1202 | int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw) |
0b7a4c78 | 1203 | { |
d0f76d68 | 1204 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1205 | |
1206 | return priv->ibss_manager == IWL_IBSS_MANAGER; | |
1207 | } | |
1208 | ||
1209 | static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx) | |
1210 | { | |
1211 | iwl_connection_init_rx_config(priv, ctx); | |
1212 | ||
1213 | iwlagn_set_rxon_chain(priv, ctx); | |
1214 | ||
1215 | return iwlagn_commit_rxon(priv, ctx); | |
1216 | } | |
1217 | ||
50c1e9a9 | 1218 | int iwl_setup_interface(struct iwl_priv *priv, struct iwl_rxon_context *ctx) |
0b7a4c78 WYG |
1219 | { |
1220 | struct ieee80211_vif *vif = ctx->vif; | |
1221 | int err; | |
1222 | ||
b1eea297 | 1223 | lockdep_assert_held(&priv->mutex); |
0b7a4c78 WYG |
1224 | |
1225 | /* | |
1226 | * This variable will be correct only when there's just | |
1227 | * a single context, but all code using it is for hardware | |
1228 | * that supports only one context. | |
1229 | */ | |
1230 | priv->iw_mode = vif->type; | |
1231 | ||
1232 | ctx->is_active = true; | |
1233 | ||
1234 | err = iwl_set_mode(priv, ctx); | |
1235 | if (err) { | |
1236 | if (!ctx->always_active) | |
1237 | ctx->is_active = false; | |
1238 | return err; | |
1239 | } | |
1240 | ||
2152268f | 1241 | if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist && |
0b7a4c78 WYG |
1242 | vif->type == NL80211_IFTYPE_ADHOC) { |
1243 | /* | |
1244 | * pretend to have high BT traffic as long as we | |
1245 | * are operating in IBSS mode, as this will cause | |
1246 | * the rate scaling etc. to behave as intended. | |
1247 | */ | |
1248 | priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH; | |
1249 | } | |
1250 | ||
1251 | return 0; | |
1252 | } | |
1253 | ||
1254 | static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, | |
1255 | struct ieee80211_vif *vif) | |
1256 | { | |
d0f76d68 | 1257 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1258 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
1259 | struct iwl_rxon_context *tmp, *ctx = NULL; | |
1260 | int err; | |
1261 | enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif); | |
1262 | ||
1263 | IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n", | |
1264 | viftype, vif->addr); | |
1265 | ||
1266 | cancel_delayed_work_sync(&priv->hw_roc_disable_work); | |
1267 | ||
b1eea297 | 1268 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1269 | |
1270 | iwlagn_disable_roc(priv); | |
1271 | ||
83626404 | 1272 | if (!iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1273 | IWL_WARN(priv, "Try to add interface when device not ready\n"); |
1274 | err = -EINVAL; | |
1275 | goto out; | |
1276 | } | |
1277 | ||
1278 | for_each_context(priv, tmp) { | |
1279 | u32 possible_modes = | |
1280 | tmp->interface_modes | tmp->exclusive_interface_modes; | |
1281 | ||
1282 | if (tmp->vif) { | |
1283 | /* check if this busy context is exclusive */ | |
1284 | if (tmp->exclusive_interface_modes & | |
1285 | BIT(tmp->vif->type)) { | |
1286 | err = -EINVAL; | |
1287 | goto out; | |
1288 | } | |
1289 | continue; | |
1290 | } | |
1291 | ||
1292 | if (!(possible_modes & BIT(viftype))) | |
1293 | continue; | |
1294 | ||
1295 | /* have maybe usable context w/o interface */ | |
1296 | ctx = tmp; | |
1297 | break; | |
1298 | } | |
1299 | ||
1300 | if (!ctx) { | |
1301 | err = -EOPNOTSUPP; | |
1302 | goto out; | |
1303 | } | |
1304 | ||
1305 | vif_priv->ctx = ctx; | |
1306 | ctx->vif = vif; | |
1307 | ||
1308 | err = iwl_setup_interface(priv, ctx); | |
1309 | if (!err) | |
1310 | goto out; | |
1311 | ||
1312 | ctx->vif = NULL; | |
1313 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
1314 | out: | |
b1eea297 | 1315 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1316 | |
1317 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1318 | return err; | |
1319 | } | |
1320 | ||
50c1e9a9 DS |
1321 | void iwl_teardown_interface(struct iwl_priv *priv, |
1322 | struct ieee80211_vif *vif, | |
1323 | bool mode_change) | |
0b7a4c78 WYG |
1324 | { |
1325 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); | |
1326 | ||
b1eea297 | 1327 | lockdep_assert_held(&priv->mutex); |
0b7a4c78 WYG |
1328 | |
1329 | if (priv->scan_vif == vif) { | |
1330 | iwl_scan_cancel_timeout(priv, 200); | |
1331 | iwl_force_scan_end(priv); | |
1332 | } | |
1333 | ||
1334 | if (!mode_change) { | |
1335 | iwl_set_mode(priv, ctx); | |
1336 | if (!ctx->always_active) | |
1337 | ctx->is_active = false; | |
1338 | } | |
1339 | ||
1340 | /* | |
1341 | * When removing the IBSS interface, overwrite the | |
1342 | * BT traffic load with the stored one from the last | |
1343 | * notification, if any. If this is a device that | |
1344 | * doesn't implement this, this has no effect since | |
1345 | * both values are the same and zero. | |
1346 | */ | |
1347 | if (vif->type == NL80211_IFTYPE_ADHOC) | |
1348 | priv->bt_traffic_load = priv->last_bt_traffic_load; | |
1349 | } | |
1350 | ||
1351 | static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw, | |
1352 | struct ieee80211_vif *vif) | |
1353 | { | |
d0f76d68 | 1354 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1355 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
1356 | ||
1357 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1358 | ||
b1eea297 | 1359 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1360 | |
1361 | if (WARN_ON(ctx->vif != vif)) { | |
1362 | struct iwl_rxon_context *tmp; | |
1363 | IWL_ERR(priv, "ctx->vif = %p, vif = %p\n", ctx->vif, vif); | |
1364 | for_each_context(priv, tmp) | |
1365 | IWL_ERR(priv, "\tID = %d:\tctx = %p\tctx->vif = %p\n", | |
1366 | tmp->ctxid, tmp, tmp->vif); | |
1367 | } | |
1368 | ctx->vif = NULL; | |
1369 | ||
1370 | iwl_teardown_interface(priv, vif, false); | |
1371 | ||
b1eea297 | 1372 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1373 | |
1374 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1375 | ||
1376 | } | |
1377 | ||
1378 | static int iwlagn_mac_change_interface(struct ieee80211_hw *hw, | |
1379 | struct ieee80211_vif *vif, | |
1380 | enum nl80211_iftype newtype, bool newp2p) | |
1381 | { | |
d0f76d68 | 1382 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1383 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
1384 | struct iwl_rxon_context *bss_ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
1385 | struct iwl_rxon_context *tmp; | |
1386 | enum nl80211_iftype newviftype = newtype; | |
1387 | u32 interface_modes; | |
1388 | int err; | |
1389 | ||
1390 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1391 | ||
1392 | newtype = ieee80211_iftype_p2p(newtype, newp2p); | |
1393 | ||
b1eea297 | 1394 | mutex_lock(&priv->mutex); |
0b7a4c78 | 1395 | |
83626404 | 1396 | if (!ctx->vif || !iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1397 | /* |
1398 | * Huh? But wait ... this can maybe happen when | |
1399 | * we're in the middle of a firmware restart! | |
1400 | */ | |
1401 | err = -EBUSY; | |
1402 | goto out; | |
1403 | } | |
1404 | ||
1405 | interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes; | |
1406 | ||
1407 | if (!(interface_modes & BIT(newtype))) { | |
1408 | err = -EBUSY; | |
1409 | goto out; | |
1410 | } | |
1411 | ||
1412 | /* | |
1413 | * Refuse a change that should be done by moving from the PAN | |
1414 | * context to the BSS context instead, if the BSS context is | |
1415 | * available and can support the new interface type. | |
1416 | */ | |
1417 | if (ctx->ctxid == IWL_RXON_CTX_PAN && !bss_ctx->vif && | |
1418 | (bss_ctx->interface_modes & BIT(newtype) || | |
1419 | bss_ctx->exclusive_interface_modes & BIT(newtype))) { | |
1420 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
1421 | err = -EBUSY; | |
1422 | goto out; | |
1423 | } | |
1424 | ||
1425 | if (ctx->exclusive_interface_modes & BIT(newtype)) { | |
1426 | for_each_context(priv, tmp) { | |
1427 | if (ctx == tmp) | |
1428 | continue; | |
1429 | ||
1430 | if (!tmp->vif) | |
1431 | continue; | |
1432 | ||
1433 | /* | |
1434 | * The current mode switch would be exclusive, but | |
1435 | * another context is active ... refuse the switch. | |
1436 | */ | |
1437 | err = -EBUSY; | |
1438 | goto out; | |
1439 | } | |
1440 | } | |
1441 | ||
1442 | /* success */ | |
1443 | iwl_teardown_interface(priv, vif, true); | |
1444 | vif->type = newviftype; | |
1445 | vif->p2p = newp2p; | |
1446 | err = iwl_setup_interface(priv, ctx); | |
1447 | WARN_ON(err); | |
1448 | /* | |
1449 | * We've switched internally, but submitting to the | |
1450 | * device may have failed for some reason. Mask this | |
1451 | * error, because otherwise mac80211 will not switch | |
1452 | * (and set the interface type back) and we'll be | |
1453 | * out of sync with it. | |
1454 | */ | |
1455 | err = 0; | |
1456 | ||
1457 | out: | |
b1eea297 | 1458 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1459 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1460 | ||
1461 | return err; | |
1462 | } | |
1463 | ||
50c1e9a9 DS |
1464 | int iwlagn_mac_hw_scan(struct ieee80211_hw *hw, |
1465 | struct ieee80211_vif *vif, | |
1466 | struct cfg80211_scan_request *req) | |
ba4c5319 | 1467 | { |
d0f76d68 | 1468 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
ba4c5319 WYG |
1469 | int ret; |
1470 | ||
1471 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1472 | ||
1473 | if (req->n_channels == 0) | |
1474 | return -EINVAL; | |
1475 | ||
b1eea297 | 1476 | mutex_lock(&priv->mutex); |
ba4c5319 WYG |
1477 | |
1478 | /* | |
1479 | * If an internal scan is in progress, just set | |
1480 | * up the scan_request as per above. | |
1481 | */ | |
1482 | if (priv->scan_type != IWL_SCAN_NORMAL) { | |
1483 | IWL_DEBUG_SCAN(priv, | |
1484 | "SCAN request during internal scan - defer\n"); | |
1485 | priv->scan_request = req; | |
1486 | priv->scan_vif = vif; | |
1487 | ret = 0; | |
1488 | } else { | |
1489 | priv->scan_request = req; | |
1490 | priv->scan_vif = vif; | |
1491 | /* | |
1492 | * mac80211 will only ask for one band at a time | |
1493 | * so using channels[0] here is ok | |
1494 | */ | |
1495 | ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL, | |
1496 | req->channels[0]->band); | |
1497 | if (ret) { | |
1498 | priv->scan_request = NULL; | |
1499 | priv->scan_vif = NULL; | |
1500 | } | |
1501 | } | |
1502 | ||
1503 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1504 | ||
b1eea297 | 1505 | mutex_unlock(&priv->mutex); |
ba4c5319 WYG |
1506 | |
1507 | return ret; | |
1508 | } | |
1509 | ||
76b29331 WYG |
1510 | static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id) |
1511 | { | |
9451ca1a JB |
1512 | struct iwl_addsta_cmd cmd = { |
1513 | .mode = STA_CONTROL_MODIFY_MSK, | |
1514 | .station_flags_msk = STA_FLG_PWR_SAVE_MSK, | |
1515 | .sta.sta_id = sta_id, | |
1516 | }; | |
76b29331 | 1517 | |
9451ca1a | 1518 | iwl_send_add_sta(priv, &cmd, CMD_ASYNC); |
76b29331 WYG |
1519 | } |
1520 | ||
50c1e9a9 | 1521 | void iwlagn_mac_sta_notify(struct ieee80211_hw *hw, |
76b29331 WYG |
1522 | struct ieee80211_vif *vif, |
1523 | enum sta_notify_cmd cmd, | |
1524 | struct ieee80211_sta *sta) | |
1525 | { | |
d0f76d68 | 1526 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
76b29331 WYG |
1527 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
1528 | int sta_id; | |
1529 | ||
1530 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1531 | ||
1532 | switch (cmd) { | |
1533 | case STA_NOTIFY_SLEEP: | |
1534 | WARN_ON(!sta_priv->client); | |
1535 | sta_priv->asleep = true; | |
1536 | if (atomic_read(&sta_priv->pending_frames) > 0) | |
1537 | ieee80211_sta_block_awake(hw, sta, true); | |
1538 | break; | |
1539 | case STA_NOTIFY_AWAKE: | |
1540 | WARN_ON(!sta_priv->client); | |
1541 | if (!sta_priv->asleep) | |
1542 | break; | |
1543 | sta_priv->asleep = false; | |
1544 | sta_id = iwl_sta_id(sta); | |
1545 | if (sta_id != IWL_INVALID_STATION) | |
1546 | iwl_sta_modify_ps_wake(priv, sta_id); | |
1547 | break; | |
1548 | default: | |
1549 | break; | |
1550 | } | |
1551 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1552 | } | |
1553 | ||
7335613a WYG |
1554 | struct ieee80211_ops iwlagn_hw_ops = { |
1555 | .tx = iwlagn_mac_tx, | |
1556 | .start = iwlagn_mac_start, | |
1557 | .stop = iwlagn_mac_stop, | |
1558 | #ifdef CONFIG_PM_SLEEP | |
1559 | .suspend = iwlagn_mac_suspend, | |
1560 | .resume = iwlagn_mac_resume, | |
1561 | #endif | |
1562 | .add_interface = iwlagn_mac_add_interface, | |
1563 | .remove_interface = iwlagn_mac_remove_interface, | |
1564 | .change_interface = iwlagn_mac_change_interface, | |
1565 | .config = iwlagn_mac_config, | |
1566 | .configure_filter = iwlagn_configure_filter, | |
1567 | .set_key = iwlagn_mac_set_key, | |
1568 | .update_tkip_key = iwlagn_mac_update_tkip_key, | |
1569 | .set_rekey_data = iwlagn_mac_set_rekey_data, | |
1570 | .conf_tx = iwlagn_mac_conf_tx, | |
1571 | .bss_info_changed = iwlagn_bss_info_changed, | |
1572 | .ampdu_action = iwlagn_mac_ampdu_action, | |
1573 | .hw_scan = iwlagn_mac_hw_scan, | |
1574 | .sta_notify = iwlagn_mac_sta_notify, | |
fb5fe5b9 | 1575 | .sta_state = iwlagn_mac_sta_state, |
7335613a WYG |
1576 | .channel_switch = iwlagn_mac_channel_switch, |
1577 | .flush = iwlagn_mac_flush, | |
1578 | .tx_last_beacon = iwlagn_mac_tx_last_beacon, | |
1579 | .remain_on_channel = iwlagn_mac_remain_on_channel, | |
1580 | .cancel_remain_on_channel = iwlagn_mac_cancel_remain_on_channel, | |
1581 | .rssi_callback = iwlagn_mac_rssi_callback, | |
1582 | CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd) | |
1583 | CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump) | |
7335613a WYG |
1584 | .set_tim = iwlagn_mac_set_tim, |
1585 | }; | |
1586 | ||
1587 | /* This function both allocates and initializes hw and priv. */ | |
1588 | struct ieee80211_hw *iwl_alloc_all(void) | |
1589 | { | |
1590 | struct iwl_priv *priv; | |
d0f76d68 | 1591 | struct iwl_op_mode *op_mode; |
7335613a WYG |
1592 | /* mac80211 allocates memory for this device instance, including |
1593 | * space for this driver's private structure */ | |
1594 | struct ieee80211_hw *hw; | |
1595 | ||
d0f76d68 EG |
1596 | hw = ieee80211_alloc_hw(sizeof(struct iwl_priv) + |
1597 | sizeof(struct iwl_op_mode), &iwlagn_hw_ops); | |
7335613a WYG |
1598 | if (!hw) |
1599 | goto out; | |
1600 | ||
d0f76d68 EG |
1601 | op_mode = hw->priv; |
1602 | priv = IWL_OP_MODE_GET_DVM(op_mode); | |
7335613a WYG |
1603 | priv->hw = hw; |
1604 | ||
1605 | out: | |
1606 | return hw; | |
1607 | } |