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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" | |
47 | #include "iwl-core.h" | |
48 | #include "iwl-io.h" | |
49 | #include "iwl-agn-calib.h" | |
50 | #include "iwl-agn.h" | |
51 | #include "iwl-shared.h" | |
7335613a | 52 | #include "iwl-trans.h" |
d0f76d68 | 53 | #include "iwl-op-mode.h" |
7335613a WYG |
54 | |
55 | /***************************************************************************** | |
56 | * | |
57 | * mac80211 entry point functions | |
58 | * | |
59 | *****************************************************************************/ | |
60 | ||
61 | static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = { | |
62 | { | |
63 | .max = 1, | |
64 | .types = BIT(NL80211_IFTYPE_STATION), | |
65 | }, | |
66 | { | |
67 | .max = 1, | |
68 | .types = BIT(NL80211_IFTYPE_AP), | |
69 | }, | |
70 | }; | |
71 | ||
72 | static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = { | |
73 | { | |
74 | .max = 2, | |
75 | .types = BIT(NL80211_IFTYPE_STATION), | |
76 | }, | |
77 | }; | |
78 | ||
79 | static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = { | |
80 | { | |
81 | .max = 1, | |
82 | .types = BIT(NL80211_IFTYPE_STATION), | |
83 | }, | |
84 | { | |
85 | .max = 1, | |
86 | .types = BIT(NL80211_IFTYPE_P2P_GO) | | |
87 | BIT(NL80211_IFTYPE_AP), | |
88 | }, | |
89 | }; | |
90 | ||
91 | static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = { | |
92 | { | |
93 | .max = 2, | |
94 | .types = BIT(NL80211_IFTYPE_STATION), | |
95 | }, | |
96 | { | |
97 | .max = 1, | |
98 | .types = BIT(NL80211_IFTYPE_P2P_CLIENT), | |
99 | }, | |
100 | }; | |
101 | ||
102 | static const struct ieee80211_iface_combination | |
103 | iwlagn_iface_combinations_dualmode[] = { | |
104 | { .num_different_channels = 1, | |
105 | .max_interfaces = 2, | |
106 | .beacon_int_infra_match = true, | |
107 | .limits = iwlagn_sta_ap_limits, | |
108 | .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits), | |
109 | }, | |
110 | { .num_different_channels = 1, | |
111 | .max_interfaces = 2, | |
112 | .limits = iwlagn_2sta_limits, | |
113 | .n_limits = ARRAY_SIZE(iwlagn_2sta_limits), | |
114 | }, | |
115 | }; | |
116 | ||
117 | static const struct ieee80211_iface_combination | |
118 | iwlagn_iface_combinations_p2p[] = { | |
119 | { .num_different_channels = 1, | |
120 | .max_interfaces = 2, | |
121 | .beacon_int_infra_match = true, | |
122 | .limits = iwlagn_p2p_sta_go_limits, | |
123 | .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits), | |
124 | }, | |
125 | { .num_different_channels = 1, | |
126 | .max_interfaces = 2, | |
127 | .limits = iwlagn_p2p_2sta_limits, | |
128 | .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits), | |
129 | }, | |
130 | }; | |
131 | ||
132 | /* | |
133 | * Not a mac80211 entry point function, but it fits in with all the | |
134 | * other mac80211 functions grouped here. | |
135 | */ | |
136 | int iwlagn_mac_setup_register(struct iwl_priv *priv, | |
0692fe41 | 137 | const struct iwl_ucode_capabilities *capa) |
7335613a WYG |
138 | { |
139 | int ret; | |
140 | struct ieee80211_hw *hw = priv->hw; | |
141 | struct iwl_rxon_context *ctx; | |
142 | ||
143 | hw->rate_control_algorithm = "iwl-agn-rs"; | |
144 | ||
145 | /* Tell mac80211 our characteristics */ | |
146 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
147 | IEEE80211_HW_AMPDU_AGGREGATION | | |
148 | IEEE80211_HW_NEED_DTIM_PERIOD | | |
149 | IEEE80211_HW_SPECTRUM_MGMT | | |
150 | IEEE80211_HW_REPORTS_TX_ACK_STATUS; | |
151 | ||
152 | /* | |
153 | * Including the following line will crash some AP's. This | |
154 | * workaround removes the stimulus which causes the crash until | |
155 | * the AP software can be fixed. | |
156 | hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF; | |
157 | */ | |
158 | ||
159 | hw->flags |= IEEE80211_HW_SUPPORTS_PS | | |
e5610382 JB |
160 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS | |
161 | IEEE80211_HW_SCAN_WHILE_IDLE; | |
7335613a | 162 | |
54708d8d | 163 | if (hw_params(priv).sku & EEPROM_SKU_CAP_11N_ENABLE) |
7335613a WYG |
164 | hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | |
165 | IEEE80211_HW_SUPPORTS_STATIC_SMPS; | |
166 | ||
18c57d3c DS |
167 | #ifndef CONFIG_IWLWIFI_EXPERIMENTAL_MFP |
168 | /* enable 11w if the uCode advertise */ | |
7335613a | 169 | if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP) |
18c57d3c | 170 | #endif /* !CONFIG_IWLWIFI_EXPERIMENTAL_MFP */ |
7335613a WYG |
171 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; |
172 | ||
173 | hw->sta_data_size = sizeof(struct iwl_station_priv); | |
174 | hw->vif_data_size = sizeof(struct iwl_vif_priv); | |
175 | ||
176 | for_each_context(priv, ctx) { | |
177 | hw->wiphy->interface_modes |= ctx->interface_modes; | |
178 | hw->wiphy->interface_modes |= ctx->exclusive_interface_modes; | |
179 | } | |
180 | ||
181 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
182 | ||
183 | if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) { | |
184 | hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p; | |
185 | hw->wiphy->n_iface_combinations = | |
186 | ARRAY_SIZE(iwlagn_iface_combinations_p2p); | |
187 | } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { | |
188 | hw->wiphy->iface_combinations = | |
189 | iwlagn_iface_combinations_dualmode; | |
190 | hw->wiphy->n_iface_combinations = | |
191 | ARRAY_SIZE(iwlagn_iface_combinations_dualmode); | |
192 | } | |
193 | ||
194 | hw->wiphy->max_remain_on_channel_duration = 1000; | |
195 | ||
196 | hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | | |
197 | WIPHY_FLAG_DISABLE_BEACON_HINTS | | |
198 | WIPHY_FLAG_IBSS_RSN; | |
199 | ||
6dfa8d01 | 200 | if (priv->fw->img[IWL_UCODE_WOWLAN].sec[0].len && |
2dd4f9f7 | 201 | trans(priv)->ops->wowlan_suspend && |
1042db2a | 202 | device_can_wakeup(trans(priv)->dev)) { |
7335613a WYG |
203 | hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | |
204 | WIPHY_WOWLAN_DISCONNECT | | |
205 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
206 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
207 | if (!iwlagn_mod_params.sw_crypto) | |
208 | hw->wiphy->wowlan.flags |= | |
209 | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | | |
210 | WIPHY_WOWLAN_GTK_REKEY_FAILURE; | |
211 | ||
212 | hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS; | |
213 | hw->wiphy->wowlan.pattern_min_len = | |
214 | IWLAGN_WOWLAN_MIN_PATTERN_LEN; | |
215 | hw->wiphy->wowlan.pattern_max_len = | |
216 | IWLAGN_WOWLAN_MAX_PATTERN_LEN; | |
217 | } | |
218 | ||
219 | if (iwlagn_mod_params.power_save) | |
220 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
221 | else | |
222 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
223 | ||
224 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; | |
225 | /* we create the 802.11 header and a zero-length SSID element */ | |
226 | hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 2; | |
227 | ||
228 | /* Default value; 4 EDCA QOS priorities */ | |
229 | hw->queues = 4; | |
230 | ||
231 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; | |
232 | ||
233 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) | |
234 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
235 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
236 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) | |
237 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
238 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
239 | ||
99673ee5 | 240 | hw->wiphy->hw_version = trans(priv)->hw_id; |
0ba958eb | 241 | |
7335613a WYG |
242 | iwl_leds_init(priv); |
243 | ||
244 | ret = ieee80211_register_hw(priv->hw); | |
245 | if (ret) { | |
246 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); | |
247 | return ret; | |
248 | } | |
249 | priv->mac80211_registered = 1; | |
250 | ||
251 | return 0; | |
252 | } | |
253 | ||
09af1403 DF |
254 | void iwlagn_mac_unregister(struct iwl_priv *priv) |
255 | { | |
256 | if (!priv->mac80211_registered) | |
257 | return; | |
258 | iwl_leds_exit(priv); | |
259 | ieee80211_unregister_hw(priv->hw); | |
260 | priv->mac80211_registered = 0; | |
261 | } | |
262 | ||
7335613a WYG |
263 | static int __iwl_up(struct iwl_priv *priv) |
264 | { | |
265 | struct iwl_rxon_context *ctx; | |
266 | int ret; | |
267 | ||
b1eea297 | 268 | lockdep_assert_held(&priv->mutex); |
7335613a | 269 | |
83626404 | 270 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
7335613a WYG |
271 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
272 | return -EIO; | |
273 | } | |
274 | ||
275 | for_each_context(priv, ctx) { | |
276 | ret = iwlagn_alloc_bcast_station(priv, ctx); | |
277 | if (ret) { | |
278 | iwl_dealloc_bcast_stations(priv); | |
279 | return ret; | |
280 | } | |
281 | } | |
282 | ||
e1991885 | 283 | ret = iwl_run_init_ucode(priv); |
7335613a WYG |
284 | if (ret) { |
285 | IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret); | |
286 | goto error; | |
287 | } | |
288 | ||
e1991885 | 289 | ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR); |
7335613a WYG |
290 | if (ret) { |
291 | IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret); | |
292 | goto error; | |
293 | } | |
294 | ||
295 | ret = iwl_alive_start(priv); | |
296 | if (ret) | |
297 | goto error; | |
298 | return 0; | |
299 | ||
300 | error: | |
83626404 | 301 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
78e5a464 | 302 | iwl_down(priv); |
83626404 | 303 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
7335613a WYG |
304 | |
305 | IWL_ERR(priv, "Unable to initialize device.\n"); | |
306 | return ret; | |
307 | } | |
308 | ||
309 | static int iwlagn_mac_start(struct ieee80211_hw *hw) | |
310 | { | |
d0f76d68 | 311 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
312 | int ret; |
313 | ||
314 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
315 | ||
316 | /* we should be verifying the device is ready to be opened */ | |
b1eea297 | 317 | mutex_lock(&priv->mutex); |
7335613a | 318 | ret = __iwl_up(priv); |
b1eea297 | 319 | mutex_unlock(&priv->mutex); |
7335613a WYG |
320 | if (ret) |
321 | return ret; | |
322 | ||
323 | IWL_DEBUG_INFO(priv, "Start UP work done.\n"); | |
324 | ||
325 | /* Now we should be done, and the READY bit should be set. */ | |
83626404 | 326 | if (WARN_ON(!test_bit(STATUS_READY, &priv->status))) |
7335613a WYG |
327 | ret = -EIO; |
328 | ||
329 | iwlagn_led_enable(priv); | |
330 | ||
331 | priv->is_open = 1; | |
332 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
333 | return 0; | |
334 | } | |
335 | ||
336 | static void iwlagn_mac_stop(struct ieee80211_hw *hw) | |
337 | { | |
d0f76d68 | 338 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
339 | |
340 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
341 | ||
342 | if (!priv->is_open) | |
343 | return; | |
344 | ||
345 | priv->is_open = 0; | |
346 | ||
b1eea297 | 347 | mutex_lock(&priv->mutex); |
7335613a | 348 | iwl_down(priv); |
b1eea297 | 349 | mutex_unlock(&priv->mutex); |
78e5a464 EG |
350 | |
351 | iwl_cancel_deferred_work(priv); | |
7335613a | 352 | |
1ee158d8 | 353 | flush_workqueue(priv->workqueue); |
7335613a WYG |
354 | |
355 | /* User space software may expect getting rfkill changes | |
1df06bdc EG |
356 | * even if interface is down, trans->down will leave the RF |
357 | * kill interrupt enabled | |
358 | */ | |
359 | iwl_trans_stop_hw(trans(priv)); | |
7335613a WYG |
360 | |
361 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
362 | } | |
363 | ||
364 | static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw, | |
365 | struct ieee80211_vif *vif, | |
366 | struct cfg80211_gtk_rekey_data *data) | |
367 | { | |
d0f76d68 | 368 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
369 | |
370 | if (iwlagn_mod_params.sw_crypto) | |
371 | return; | |
372 | ||
373 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 374 | mutex_lock(&priv->mutex); |
7335613a WYG |
375 | |
376 | if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif) | |
377 | goto out; | |
378 | ||
379 | memcpy(priv->kek, data->kek, NL80211_KEK_LEN); | |
380 | memcpy(priv->kck, data->kck, NL80211_KCK_LEN); | |
381 | priv->replay_ctr = | |
382 | cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); | |
383 | priv->have_rekey_data = true; | |
384 | ||
385 | out: | |
b1eea297 | 386 | mutex_unlock(&priv->mutex); |
7335613a WYG |
387 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
388 | } | |
389 | ||
390 | #ifdef CONFIG_PM_SLEEP | |
7335613a WYG |
391 | |
392 | static int iwlagn_mac_suspend(struct ieee80211_hw *hw, | |
393 | struct cfg80211_wowlan *wowlan) | |
394 | { | |
d0f76d68 | 395 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 396 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
023ca58f | 397 | int ret; |
7335613a WYG |
398 | |
399 | if (WARN_ON(!wowlan)) | |
400 | return -EINVAL; | |
401 | ||
402 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 403 | mutex_lock(&priv->mutex); |
7335613a WYG |
404 | |
405 | /* Don't attempt WoWLAN when not associated, tear down instead. */ | |
406 | if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION || | |
407 | !iwl_is_associated_ctx(ctx)) { | |
408 | ret = 1; | |
409 | goto out; | |
410 | } | |
411 | ||
ea886a60 | 412 | ret = iwlagn_suspend(priv, wowlan); |
7335613a WYG |
413 | if (ret) |
414 | goto error; | |
415 | ||
1042db2a | 416 | device_set_wakeup_enable(trans(priv)->dev, true); |
7335613a | 417 | |
2dd4f9f7 | 418 | iwl_trans_wowlan_suspend(trans(priv)); |
7335613a WYG |
419 | |
420 | goto out; | |
421 | ||
422 | error: | |
15b86bff | 423 | priv->wowlan = false; |
7335613a WYG |
424 | iwlagn_prepare_restart(priv); |
425 | ieee80211_restart_hw(priv->hw); | |
426 | out: | |
b1eea297 | 427 | mutex_unlock(&priv->mutex); |
7335613a WYG |
428 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
429 | ||
430 | return ret; | |
431 | } | |
432 | ||
433 | static int iwlagn_mac_resume(struct ieee80211_hw *hw) | |
434 | { | |
d0f76d68 | 435 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
436 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
437 | struct ieee80211_vif *vif; | |
438 | unsigned long flags; | |
439 | u32 base, status = 0xffffffff; | |
440 | int ret = -EIO; | |
6dfa8d01 | 441 | const struct fw_img *img; |
7335613a WYG |
442 | |
443 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 444 | mutex_lock(&priv->mutex); |
7335613a | 445 | |
1042db2a | 446 | iwl_write32(trans(priv), CSR_UCODE_DRV_GP1_CLR, |
7335613a WYG |
447 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); |
448 | ||
ae6130fc | 449 | base = priv->shrd->device_pointers.error_event_table; |
7335613a | 450 | if (iwlagn_hw_valid_rtc_data_addr(base)) { |
1042db2a EG |
451 | spin_lock_irqsave(&trans(priv)->reg_lock, flags); |
452 | ret = iwl_grab_nic_access_silent(trans(priv)); | |
bfe4b80e | 453 | if (likely(ret == 0)) { |
1042db2a EG |
454 | iwl_write32(trans(priv), HBUS_TARG_MEM_RADDR, base); |
455 | status = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT); | |
456 | iwl_release_nic_access(trans(priv)); | |
7335613a | 457 | } |
1042db2a | 458 | spin_unlock_irqrestore(&trans(priv)->reg_lock, flags); |
7335613a WYG |
459 | |
460 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
461 | if (ret == 0) { | |
6dfa8d01 DS |
462 | img = &(priv->fw->img[IWL_UCODE_WOWLAN]); |
463 | if (!priv->wowlan_sram) { | |
7335613a | 464 | priv->wowlan_sram = |
6dfa8d01 | 465 | kzalloc(img->sec[IWL_UCODE_SECTION_DATA].len, |
7335613a | 466 | GFP_KERNEL); |
6dfa8d01 | 467 | } |
7335613a WYG |
468 | |
469 | if (priv->wowlan_sram) | |
470 | _iwl_read_targ_mem_words( | |
6dfa8d01 DS |
471 | trans(priv), 0x800000, |
472 | priv->wowlan_sram, | |
473 | img->sec[IWL_UCODE_SECTION_DATA].len / 4); | |
7335613a WYG |
474 | } |
475 | #endif | |
476 | } | |
477 | ||
478 | /* we'll clear ctx->vif during iwlagn_prepare_restart() */ | |
479 | vif = ctx->vif; | |
480 | ||
15b86bff | 481 | priv->wowlan = false; |
7335613a | 482 | |
1042db2a | 483 | device_set_wakeup_enable(trans(priv)->dev, false); |
7335613a WYG |
484 | |
485 | iwlagn_prepare_restart(priv); | |
486 | ||
487 | memset((void *)&ctx->active, 0, sizeof(ctx->active)); | |
488 | iwl_connection_init_rx_config(priv, ctx); | |
489 | iwlagn_set_rxon_chain(priv, ctx); | |
490 | ||
b1eea297 | 491 | mutex_unlock(&priv->mutex); |
7335613a WYG |
492 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
493 | ||
494 | ieee80211_resume_disconnect(vif); | |
495 | ||
496 | return 1; | |
497 | } | |
498 | ||
499 | #endif | |
500 | ||
501 | static void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | |
502 | { | |
d0f76d68 | 503 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 504 | |
7335613a WYG |
505 | IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
506 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); | |
507 | ||
508 | if (iwlagn_tx_skb(priv, skb)) | |
509 | dev_kfree_skb_any(skb); | |
7335613a WYG |
510 | } |
511 | ||
512 | static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw, | |
513 | struct ieee80211_vif *vif, | |
514 | struct ieee80211_key_conf *keyconf, | |
515 | struct ieee80211_sta *sta, | |
516 | u32 iv32, u16 *phase1key) | |
517 | { | |
d0f76d68 | 518 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
519 | |
520 | iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key); | |
521 | } | |
522 | ||
523 | static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, | |
524 | struct ieee80211_vif *vif, | |
525 | struct ieee80211_sta *sta, | |
526 | struct ieee80211_key_conf *key) | |
527 | { | |
d0f76d68 | 528 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
529 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
530 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
531 | int ret; | |
532 | bool is_default_wep_key = false; | |
533 | ||
534 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
535 | ||
536 | if (iwlagn_mod_params.sw_crypto) { | |
537 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); | |
538 | return -EOPNOTSUPP; | |
539 | } | |
540 | ||
a7e12c8e JB |
541 | switch (key->cipher) { |
542 | case WLAN_CIPHER_SUITE_TKIP: | |
543 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
544 | /* fall through */ | |
545 | case WLAN_CIPHER_SUITE_CCMP: | |
546 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
547 | break; | |
548 | default: | |
549 | break; | |
550 | } | |
551 | ||
7335613a WYG |
552 | /* |
553 | * We could program these keys into the hardware as well, but we | |
554 | * don't expect much multicast traffic in IBSS and having keys | |
555 | * for more stations is probably more useful. | |
556 | * | |
557 | * Mark key TX-only and return 0. | |
558 | */ | |
559 | if (vif->type == NL80211_IFTYPE_ADHOC && | |
560 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { | |
561 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
562 | return 0; | |
563 | } | |
564 | ||
565 | /* If they key was TX-only, accept deletion */ | |
566 | if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET) | |
567 | return 0; | |
568 | ||
b1eea297 | 569 | mutex_lock(&priv->mutex); |
7335613a WYG |
570 | iwl_scan_cancel_timeout(priv, 100); |
571 | ||
572 | BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT); | |
573 | ||
574 | /* | |
575 | * If we are getting WEP group key and we didn't receive any key mapping | |
576 | * so far, we are in legacy wep mode (group key only), otherwise we are | |
577 | * in 1X mode. | |
578 | * In legacy wep mode, we use another host command to the uCode. | |
579 | */ | |
580 | if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || | |
581 | key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) { | |
582 | if (cmd == SET_KEY) | |
583 | is_default_wep_key = !ctx->key_mapping_keys; | |
584 | else | |
585 | is_default_wep_key = | |
586 | key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT; | |
587 | } | |
588 | ||
589 | ||
590 | switch (cmd) { | |
591 | case SET_KEY: | |
592 | if (is_default_wep_key) { | |
593 | ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key); | |
594 | break; | |
595 | } | |
596 | ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta); | |
597 | if (ret) { | |
598 | /* | |
599 | * can't add key for RX, but we don't need it | |
600 | * in the device for TX so still return 0 | |
601 | */ | |
602 | ret = 0; | |
603 | key->hw_key_idx = WEP_INVALID_OFFSET; | |
604 | } | |
605 | ||
606 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); | |
607 | break; | |
608 | case DISABLE_KEY: | |
609 | if (is_default_wep_key) | |
610 | ret = iwl_remove_default_wep_key(priv, ctx, key); | |
611 | else | |
612 | ret = iwl_remove_dynamic_key(priv, ctx, key, sta); | |
613 | ||
614 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); | |
615 | break; | |
616 | default: | |
617 | ret = -EINVAL; | |
618 | } | |
619 | ||
b1eea297 | 620 | mutex_unlock(&priv->mutex); |
7335613a WYG |
621 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
622 | ||
623 | return ret; | |
624 | } | |
625 | ||
626 | static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, | |
627 | struct ieee80211_vif *vif, | |
628 | enum ieee80211_ampdu_mlme_action action, | |
629 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, | |
630 | u8 buf_size) | |
631 | { | |
d0f76d68 | 632 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
633 | int ret = -EINVAL; |
634 | struct iwl_station_priv *sta_priv = (void *) sta->drv_priv; | |
7335613a WYG |
635 | |
636 | IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", | |
637 | sta->addr, tid); | |
638 | ||
54708d8d | 639 | if (!(hw_params(priv).sku & EEPROM_SKU_CAP_11N_ENABLE)) |
7335613a WYG |
640 | return -EACCES; |
641 | ||
642 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 643 | mutex_lock(&priv->mutex); |
7335613a WYG |
644 | |
645 | switch (action) { | |
646 | case IEEE80211_AMPDU_RX_START: | |
7428994d JB |
647 | if (iwlagn_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) |
648 | break; | |
7335613a WYG |
649 | IWL_DEBUG_HT(priv, "start Rx\n"); |
650 | ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn); | |
651 | break; | |
652 | case IEEE80211_AMPDU_RX_STOP: | |
653 | IWL_DEBUG_HT(priv, "stop Rx\n"); | |
654 | ret = iwl_sta_rx_agg_stop(priv, sta, tid); | |
7335613a WYG |
655 | break; |
656 | case IEEE80211_AMPDU_TX_START: | |
7428994d JB |
657 | if (iwlagn_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) |
658 | break; | |
7335613a WYG |
659 | IWL_DEBUG_HT(priv, "start Tx\n"); |
660 | ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn); | |
661 | break; | |
662 | case IEEE80211_AMPDU_TX_STOP: | |
663 | IWL_DEBUG_HT(priv, "stop Tx\n"); | |
664 | ret = iwlagn_tx_agg_stop(priv, vif, sta, tid); | |
665 | if ((ret == 0) && (priv->agg_tids_count > 0)) { | |
666 | priv->agg_tids_count--; | |
667 | IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", | |
668 | priv->agg_tids_count); | |
669 | } | |
b9ad70da JB |
670 | if (!priv->agg_tids_count && |
671 | hw_params(priv).use_rts_for_aggregation) { | |
7335613a WYG |
672 | /* |
673 | * switch off RTS/CTS if it was previously enabled | |
674 | */ | |
675 | sta_priv->lq_sta.lq.general_params.flags &= | |
676 | ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; | |
677 | iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), | |
678 | &sta_priv->lq_sta.lq, CMD_ASYNC, false); | |
679 | } | |
680 | break; | |
681 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
822e8b2a | 682 | ret = iwlagn_tx_agg_oper(priv, vif, sta, tid, buf_size); |
7335613a WYG |
683 | break; |
684 | } | |
b1eea297 | 685 | mutex_unlock(&priv->mutex); |
7335613a WYG |
686 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
687 | return ret; | |
688 | } | |
689 | ||
690 | static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, | |
691 | struct ieee80211_vif *vif, | |
692 | struct ieee80211_sta *sta) | |
693 | { | |
d0f76d68 | 694 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
695 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
696 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
697 | bool is_ap = vif->type == NL80211_IFTYPE_STATION; | |
fb5fe5b9 | 698 | int ret; |
7335613a WYG |
699 | u8 sta_id; |
700 | ||
7335613a WYG |
701 | IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", |
702 | sta->addr); | |
703 | sta_priv->sta_id = IWL_INVALID_STATION; | |
704 | ||
705 | atomic_set(&sta_priv->pending_frames, 0); | |
706 | if (vif->type == NL80211_IFTYPE_AP) | |
707 | sta_priv->client = true; | |
708 | ||
709 | ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr, | |
710 | is_ap, sta, &sta_id); | |
711 | if (ret) { | |
712 | IWL_ERR(priv, "Unable to add station %pM (%d)\n", | |
713 | sta->addr, ret); | |
714 | /* Should we return success if return code is EEXIST ? */ | |
fb5fe5b9 | 715 | return ret; |
7335613a WYG |
716 | } |
717 | ||
718 | sta_priv->sta_id = sta_id; | |
719 | ||
fb5fe5b9 JB |
720 | return 0; |
721 | } | |
722 | ||
723 | static int iwlagn_mac_sta_remove(struct ieee80211_hw *hw, | |
724 | struct ieee80211_vif *vif, | |
725 | struct ieee80211_sta *sta) | |
726 | { | |
727 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
728 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; | |
729 | int ret; | |
730 | ||
97420515 JB |
731 | IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", sta->addr); |
732 | ||
733 | if (vif->type == NL80211_IFTYPE_STATION) { | |
734 | /* | |
735 | * Station will be removed from device when the RXON | |
736 | * is set to unassociated -- just deactivate it here | |
737 | * to avoid re-programming it. | |
738 | */ | |
739 | ret = 0; | |
740 | iwl_deactivate_station(priv, sta_priv->sta_id, sta->addr); | |
741 | } else { | |
742 | ret = iwl_remove_station(priv, sta_priv->sta_id, sta->addr); | |
743 | if (ret) | |
744 | IWL_DEBUG_QUIET_RFKILL(priv, | |
745 | "Error removing station %pM\n", sta->addr); | |
746 | } | |
fb5fe5b9 JB |
747 | return ret; |
748 | } | |
749 | ||
750 | static int iwlagn_mac_sta_state(struct ieee80211_hw *hw, | |
751 | struct ieee80211_vif *vif, | |
752 | struct ieee80211_sta *sta, | |
753 | enum ieee80211_sta_state old_state, | |
754 | enum ieee80211_sta_state new_state) | |
755 | { | |
756 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
ab0bd5b3 | 757 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
fb5fe5b9 | 758 | enum { |
ab0bd5b3 | 759 | NONE, ADD, REMOVE, HT_RATE_INIT, ADD_RATE_INIT, |
fb5fe5b9 JB |
760 | } op = NONE; |
761 | int ret; | |
762 | ||
763 | IWL_DEBUG_MAC80211(priv, "station %pM state change %d->%d\n", | |
764 | sta->addr, old_state, new_state); | |
765 | ||
b1eea297 | 766 | mutex_lock(&priv->mutex); |
fb5fe5b9 JB |
767 | if (vif->type == NL80211_IFTYPE_STATION) { |
768 | if (old_state == IEEE80211_STA_NOTEXIST && | |
769 | new_state == IEEE80211_STA_NONE) | |
770 | op = ADD; | |
771 | else if (old_state == IEEE80211_STA_NONE && | |
772 | new_state == IEEE80211_STA_NOTEXIST) | |
773 | op = REMOVE; | |
774 | else if (old_state == IEEE80211_STA_AUTH && | |
775 | new_state == IEEE80211_STA_ASSOC) | |
ab0bd5b3 | 776 | op = HT_RATE_INIT; |
fb5fe5b9 JB |
777 | } else { |
778 | if (old_state == IEEE80211_STA_AUTH && | |
779 | new_state == IEEE80211_STA_ASSOC) | |
780 | op = ADD_RATE_INIT; | |
781 | else if (old_state == IEEE80211_STA_ASSOC && | |
782 | new_state == IEEE80211_STA_AUTH) | |
783 | op = REMOVE; | |
784 | } | |
785 | ||
786 | switch (op) { | |
787 | case ADD: | |
788 | ret = iwlagn_mac_sta_add(hw, vif, sta); | |
789 | break; | |
790 | case REMOVE: | |
791 | ret = iwlagn_mac_sta_remove(hw, vif, sta); | |
792 | break; | |
793 | case ADD_RATE_INIT: | |
794 | ret = iwlagn_mac_sta_add(hw, vif, sta); | |
795 | if (ret) | |
796 | break; | |
fb5fe5b9 JB |
797 | /* Initialize rate scaling */ |
798 | IWL_DEBUG_INFO(priv, | |
799 | "Initializing rate scaling for station %pM\n", | |
800 | sta->addr); | |
801 | iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); | |
802 | ret = 0; | |
803 | break; | |
ab0bd5b3 JB |
804 | case HT_RATE_INIT: |
805 | /* Initialize rate scaling */ | |
806 | ret = iwl_sta_update_ht(priv, vif_priv->ctx, sta); | |
807 | if (ret) | |
808 | break; | |
809 | IWL_DEBUG_INFO(priv, | |
810 | "Initializing rate scaling for station %pM\n", | |
811 | sta->addr); | |
812 | iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); | |
813 | ret = 0; | |
814 | break; | |
fb5fe5b9 JB |
815 | default: |
816 | ret = 0; | |
817 | break; | |
818 | } | |
819 | ||
820 | /* | |
821 | * mac80211 might WARN if we fail, but due the way we | |
822 | * (badly) handle hard rfkill, we might fail here | |
823 | */ | |
83626404 | 824 | if (iwl_is_rfkill(priv)) |
fb5fe5b9 JB |
825 | ret = 0; |
826 | ||
b1eea297 | 827 | mutex_unlock(&priv->mutex); |
7335613a WYG |
828 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
829 | ||
830 | return ret; | |
831 | } | |
832 | ||
833 | static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, | |
834 | struct ieee80211_channel_switch *ch_switch) | |
835 | { | |
d0f76d68 | 836 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
837 | const struct iwl_channel_info *ch_info; |
838 | struct ieee80211_conf *conf = &hw->conf; | |
839 | struct ieee80211_channel *channel = ch_switch->channel; | |
840 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; | |
841 | /* | |
842 | * MULTI-FIXME | |
843 | * When we add support for multiple interfaces, we need to | |
844 | * revisit this. The channel switch command in the device | |
845 | * only affects the BSS context, but what does that really | |
846 | * mean? And what if we get a CSA on the second interface? | |
847 | * This needs a lot of work. | |
848 | */ | |
849 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
850 | u16 ch; | |
851 | ||
852 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
853 | ||
b1eea297 | 854 | mutex_lock(&priv->mutex); |
7335613a | 855 | |
83626404 | 856 | if (iwl_is_rfkill(priv)) |
7335613a WYG |
857 | goto out; |
858 | ||
83626404 DF |
859 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || |
860 | test_bit(STATUS_SCANNING, &priv->status) || | |
861 | test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) | |
7335613a WYG |
862 | goto out; |
863 | ||
864 | if (!iwl_is_associated_ctx(ctx)) | |
865 | goto out; | |
866 | ||
38622419 | 867 | if (!cfg(priv)->lib->set_channel_switch) |
7335613a WYG |
868 | goto out; |
869 | ||
870 | ch = channel->hw_value; | |
871 | if (le16_to_cpu(ctx->active.channel) == ch) | |
872 | goto out; | |
873 | ||
874 | ch_info = iwl_get_channel_info(priv, channel->band, ch); | |
875 | if (!is_channel_valid(ch_info)) { | |
876 | IWL_DEBUG_MAC80211(priv, "invalid channel\n"); | |
877 | goto out; | |
878 | } | |
879 | ||
7335613a WYG |
880 | priv->current_ht_config.smps = conf->smps_mode; |
881 | ||
882 | /* Configure HT40 channels */ | |
883 | ctx->ht.enabled = conf_is_ht(conf); | |
137ce797 WYG |
884 | if (ctx->ht.enabled) |
885 | iwlagn_config_ht40(conf, ctx); | |
886 | else | |
7335613a WYG |
887 | ctx->ht.is_40mhz = false; |
888 | ||
889 | if ((le16_to_cpu(ctx->staging.channel) != ch)) | |
890 | ctx->staging.flags = 0; | |
891 | ||
892 | iwl_set_rxon_channel(priv, channel, ctx); | |
893 | iwl_set_rxon_ht(priv, ht_conf); | |
894 | iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif); | |
895 | ||
7335613a WYG |
896 | iwl_set_rate(priv); |
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); |
38622419 | 903 | if (cfg(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 | ||
914 | static void iwlagn_configure_filter(struct ieee80211_hw *hw, | |
915 | unsigned int changed_flags, | |
916 | unsigned int *total_flags, | |
917 | u64 multicast) | |
918 | { | |
d0f76d68 | 919 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
920 | __le32 filter_or = 0, filter_nand = 0; |
921 | struct iwl_rxon_context *ctx; | |
922 | ||
923 | #define CHK(test, flag) do { \ | |
924 | if (*total_flags & (test)) \ | |
925 | filter_or |= (flag); \ | |
926 | else \ | |
927 | filter_nand |= (flag); \ | |
928 | } while (0) | |
929 | ||
930 | IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", | |
931 | changed_flags, *total_flags); | |
932 | ||
933 | CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); | |
934 | /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */ | |
935 | CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK); | |
936 | CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); | |
937 | ||
938 | #undef CHK | |
939 | ||
b1eea297 | 940 | mutex_lock(&priv->mutex); |
7335613a WYG |
941 | |
942 | for_each_context(priv, ctx) { | |
943 | ctx->staging.filter_flags &= ~filter_nand; | |
944 | ctx->staging.filter_flags |= filter_or; | |
945 | ||
946 | /* | |
947 | * Not committing directly because hardware can perform a scan, | |
948 | * but we'll eventually commit the filter flags change anyway. | |
949 | */ | |
950 | } | |
951 | ||
b1eea297 | 952 | mutex_unlock(&priv->mutex); |
7335613a WYG |
953 | |
954 | /* | |
955 | * Receiving all multicast frames is always enabled by the | |
956 | * default flags setup in iwl_connection_init_rx_config() | |
957 | * since we currently do not support programming multicast | |
958 | * filters into the device. | |
959 | */ | |
960 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | | |
961 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; | |
962 | } | |
963 | ||
964 | static void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop) | |
965 | { | |
d0f76d68 | 966 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 967 | |
b1eea297 | 968 | mutex_lock(&priv->mutex); |
7335613a WYG |
969 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
970 | ||
83626404 | 971 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
7335613a WYG |
972 | IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n"); |
973 | goto done; | |
974 | } | |
83626404 | 975 | if (iwl_is_rfkill(priv)) { |
7335613a WYG |
976 | IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n"); |
977 | goto done; | |
978 | } | |
979 | ||
980 | /* | |
981 | * mac80211 will not push any more frames for transmit | |
982 | * until the flush is completed | |
983 | */ | |
984 | if (drop) { | |
985 | IWL_DEBUG_MAC80211(priv, "send flush command\n"); | |
986 | if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) { | |
987 | IWL_ERR(priv, "flush request fail\n"); | |
988 | goto done; | |
989 | } | |
990 | } | |
991 | IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n"); | |
992 | iwl_trans_wait_tx_queue_empty(trans(priv)); | |
993 | done: | |
b1eea297 | 994 | mutex_unlock(&priv->mutex); |
7335613a WYG |
995 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
996 | } | |
997 | ||
998 | static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw, | |
999 | struct ieee80211_channel *channel, | |
1000 | enum nl80211_channel_type channel_type, | |
1001 | int duration) | |
1002 | { | |
d0f76d68 | 1003 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
1004 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN]; |
1005 | int err = 0; | |
1006 | ||
1007 | if (!(priv->shrd->valid_contexts & BIT(IWL_RXON_CTX_PAN))) | |
1008 | return -EOPNOTSUPP; | |
1009 | ||
1010 | if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT))) | |
1011 | return -EOPNOTSUPP; | |
1012 | ||
1013 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 1014 | mutex_lock(&priv->mutex); |
7335613a | 1015 | |
83626404 | 1016 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { |
7335613a WYG |
1017 | err = -EBUSY; |
1018 | goto out; | |
1019 | } | |
1020 | ||
1021 | priv->hw_roc_channel = channel; | |
1022 | priv->hw_roc_chantype = channel_type; | |
3ddf6bef JB |
1023 | /* convert from ms to TU */ |
1024 | priv->hw_roc_duration = DIV_ROUND_UP(1000 * duration, 1024); | |
7335613a WYG |
1025 | priv->hw_roc_start_notified = false; |
1026 | cancel_delayed_work(&priv->hw_roc_disable_work); | |
1027 | ||
1028 | if (!ctx->is_active) { | |
a69cd040 JB |
1029 | static const struct iwl_qos_info default_qos_data = { |
1030 | .def_qos_parm = { | |
1031 | .ac[0] = { | |
1032 | .cw_min = cpu_to_le16(3), | |
1033 | .cw_max = cpu_to_le16(7), | |
1034 | .aifsn = 2, | |
1035 | .edca_txop = cpu_to_le16(1504), | |
1036 | }, | |
1037 | .ac[1] = { | |
1038 | .cw_min = cpu_to_le16(7), | |
1039 | .cw_max = cpu_to_le16(15), | |
1040 | .aifsn = 2, | |
1041 | .edca_txop = cpu_to_le16(3008), | |
1042 | }, | |
1043 | .ac[2] = { | |
1044 | .cw_min = cpu_to_le16(15), | |
1045 | .cw_max = cpu_to_le16(1023), | |
1046 | .aifsn = 3, | |
1047 | }, | |
1048 | .ac[3] = { | |
1049 | .cw_min = cpu_to_le16(15), | |
1050 | .cw_max = cpu_to_le16(1023), | |
1051 | .aifsn = 7, | |
1052 | }, | |
1053 | }, | |
1054 | }; | |
1055 | ||
7335613a | 1056 | ctx->is_active = true; |
a69cd040 | 1057 | ctx->qos_data = default_qos_data; |
7335613a WYG |
1058 | ctx->staging.dev_type = RXON_DEV_TYPE_P2P; |
1059 | memcpy(ctx->staging.node_addr, | |
1060 | priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, | |
1061 | ETH_ALEN); | |
1062 | memcpy(ctx->staging.bssid_addr, | |
1063 | priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, | |
1064 | ETH_ALEN); | |
1065 | err = iwlagn_commit_rxon(priv, ctx); | |
1066 | if (err) | |
1067 | goto out; | |
1068 | ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK | | |
1069 | RXON_FILTER_PROMISC_MSK | | |
1070 | RXON_FILTER_CTL2HOST_MSK; | |
1071 | ||
1072 | err = iwlagn_commit_rxon(priv, ctx); | |
1073 | if (err) { | |
1074 | iwlagn_disable_roc(priv); | |
1075 | goto out; | |
1076 | } | |
1077 | priv->hw_roc_setup = true; | |
1078 | } | |
1079 | ||
1080 | err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band); | |
1081 | if (err) | |
1082 | iwlagn_disable_roc(priv); | |
1083 | ||
1084 | out: | |
b1eea297 | 1085 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1086 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1087 | ||
1088 | return err; | |
1089 | } | |
1090 | ||
1091 | static int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw *hw) | |
1092 | { | |
d0f76d68 | 1093 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
1094 | |
1095 | if (!(priv->shrd->valid_contexts & BIT(IWL_RXON_CTX_PAN))) | |
1096 | return -EOPNOTSUPP; | |
1097 | ||
1098 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 1099 | mutex_lock(&priv->mutex); |
7335613a WYG |
1100 | iwl_scan_cancel_timeout(priv, priv->hw_roc_duration); |
1101 | iwlagn_disable_roc(priv); | |
b1eea297 | 1102 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1103 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1104 | ||
1105 | return 0; | |
1106 | } | |
1107 | ||
7335613a WYG |
1108 | static void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw, |
1109 | enum ieee80211_rssi_event rssi_event) | |
1110 | { | |
d0f76d68 | 1111 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a WYG |
1112 | |
1113 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
b1eea297 | 1114 | mutex_lock(&priv->mutex); |
7335613a | 1115 | |
38622419 DF |
1116 | if (cfg(priv)->bt_params && |
1117 | cfg(priv)->bt_params->advanced_bt_coexist) { | |
7335613a WYG |
1118 | if (rssi_event == RSSI_EVENT_LOW) |
1119 | priv->bt_enable_pspoll = true; | |
1120 | else if (rssi_event == RSSI_EVENT_HIGH) | |
1121 | priv->bt_enable_pspoll = false; | |
1122 | ||
1123 | iwlagn_send_advance_bt_config(priv); | |
1124 | } else { | |
1125 | IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled," | |
1126 | "ignoring RSSI callback\n"); | |
1127 | } | |
1128 | ||
b1eea297 | 1129 | mutex_unlock(&priv->mutex); |
7335613a WYG |
1130 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1131 | } | |
1132 | ||
1133 | static int iwlagn_mac_set_tim(struct ieee80211_hw *hw, | |
1134 | struct ieee80211_sta *sta, bool set) | |
1135 | { | |
d0f76d68 | 1136 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7335613a | 1137 | |
1ee158d8 | 1138 | queue_work(priv->workqueue, &priv->beacon_update); |
7335613a WYG |
1139 | |
1140 | return 0; | |
1141 | } | |
1142 | ||
0b7a4c78 WYG |
1143 | static int iwlagn_mac_conf_tx(struct ieee80211_hw *hw, |
1144 | struct ieee80211_vif *vif, u16 queue, | |
1145 | const struct ieee80211_tx_queue_params *params) | |
1146 | { | |
d0f76d68 | 1147 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1148 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
1149 | struct iwl_rxon_context *ctx = vif_priv->ctx; | |
0b7a4c78 WYG |
1150 | int q; |
1151 | ||
1152 | if (WARN_ON(!ctx)) | |
1153 | return -EINVAL; | |
1154 | ||
1155 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1156 | ||
83626404 | 1157 | if (!iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1158 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
1159 | return -EIO; | |
1160 | } | |
1161 | ||
1162 | if (queue >= AC_NUM) { | |
1163 | IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); | |
1164 | return 0; | |
1165 | } | |
1166 | ||
1167 | q = AC_NUM - 1 - queue; | |
1168 | ||
b1eea297 | 1169 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1170 | |
1171 | ctx->qos_data.def_qos_parm.ac[q].cw_min = | |
1172 | cpu_to_le16(params->cw_min); | |
1173 | ctx->qos_data.def_qos_parm.ac[q].cw_max = | |
1174 | cpu_to_le16(params->cw_max); | |
1175 | ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
1176 | ctx->qos_data.def_qos_parm.ac[q].edca_txop = | |
1177 | cpu_to_le16((params->txop * 32)); | |
1178 | ||
1179 | ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
1180 | ||
b1eea297 | 1181 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1182 | |
1183 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1184 | return 0; | |
1185 | } | |
1186 | ||
1187 | static int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw) | |
1188 | { | |
d0f76d68 | 1189 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1190 | |
1191 | return priv->ibss_manager == IWL_IBSS_MANAGER; | |
1192 | } | |
1193 | ||
1194 | static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx) | |
1195 | { | |
1196 | iwl_connection_init_rx_config(priv, ctx); | |
1197 | ||
1198 | iwlagn_set_rxon_chain(priv, ctx); | |
1199 | ||
1200 | return iwlagn_commit_rxon(priv, ctx); | |
1201 | } | |
1202 | ||
1203 | static int iwl_setup_interface(struct iwl_priv *priv, | |
1204 | struct iwl_rxon_context *ctx) | |
1205 | { | |
1206 | struct ieee80211_vif *vif = ctx->vif; | |
1207 | int err; | |
1208 | ||
b1eea297 | 1209 | lockdep_assert_held(&priv->mutex); |
0b7a4c78 WYG |
1210 | |
1211 | /* | |
1212 | * This variable will be correct only when there's just | |
1213 | * a single context, but all code using it is for hardware | |
1214 | * that supports only one context. | |
1215 | */ | |
1216 | priv->iw_mode = vif->type; | |
1217 | ||
1218 | ctx->is_active = true; | |
1219 | ||
1220 | err = iwl_set_mode(priv, ctx); | |
1221 | if (err) { | |
1222 | if (!ctx->always_active) | |
1223 | ctx->is_active = false; | |
1224 | return err; | |
1225 | } | |
1226 | ||
38622419 | 1227 | if (cfg(priv)->bt_params && cfg(priv)->bt_params->advanced_bt_coexist && |
0b7a4c78 WYG |
1228 | vif->type == NL80211_IFTYPE_ADHOC) { |
1229 | /* | |
1230 | * pretend to have high BT traffic as long as we | |
1231 | * are operating in IBSS mode, as this will cause | |
1232 | * the rate scaling etc. to behave as intended. | |
1233 | */ | |
1234 | priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH; | |
1235 | } | |
1236 | ||
1237 | return 0; | |
1238 | } | |
1239 | ||
1240 | static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, | |
1241 | struct ieee80211_vif *vif) | |
1242 | { | |
d0f76d68 | 1243 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1244 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
1245 | struct iwl_rxon_context *tmp, *ctx = NULL; | |
1246 | int err; | |
1247 | enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif); | |
1248 | ||
1249 | IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n", | |
1250 | viftype, vif->addr); | |
1251 | ||
1252 | cancel_delayed_work_sync(&priv->hw_roc_disable_work); | |
1253 | ||
b1eea297 | 1254 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1255 | |
1256 | iwlagn_disable_roc(priv); | |
1257 | ||
83626404 | 1258 | if (!iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1259 | IWL_WARN(priv, "Try to add interface when device not ready\n"); |
1260 | err = -EINVAL; | |
1261 | goto out; | |
1262 | } | |
1263 | ||
1264 | for_each_context(priv, tmp) { | |
1265 | u32 possible_modes = | |
1266 | tmp->interface_modes | tmp->exclusive_interface_modes; | |
1267 | ||
1268 | if (tmp->vif) { | |
1269 | /* check if this busy context is exclusive */ | |
1270 | if (tmp->exclusive_interface_modes & | |
1271 | BIT(tmp->vif->type)) { | |
1272 | err = -EINVAL; | |
1273 | goto out; | |
1274 | } | |
1275 | continue; | |
1276 | } | |
1277 | ||
1278 | if (!(possible_modes & BIT(viftype))) | |
1279 | continue; | |
1280 | ||
1281 | /* have maybe usable context w/o interface */ | |
1282 | ctx = tmp; | |
1283 | break; | |
1284 | } | |
1285 | ||
1286 | if (!ctx) { | |
1287 | err = -EOPNOTSUPP; | |
1288 | goto out; | |
1289 | } | |
1290 | ||
1291 | vif_priv->ctx = ctx; | |
1292 | ctx->vif = vif; | |
1293 | ||
1294 | err = iwl_setup_interface(priv, ctx); | |
1295 | if (!err) | |
1296 | goto out; | |
1297 | ||
1298 | ctx->vif = NULL; | |
1299 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
1300 | out: | |
b1eea297 | 1301 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1302 | |
1303 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1304 | return err; | |
1305 | } | |
1306 | ||
1307 | static void iwl_teardown_interface(struct iwl_priv *priv, | |
1308 | struct ieee80211_vif *vif, | |
1309 | bool mode_change) | |
1310 | { | |
1311 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); | |
1312 | ||
b1eea297 | 1313 | lockdep_assert_held(&priv->mutex); |
0b7a4c78 WYG |
1314 | |
1315 | if (priv->scan_vif == vif) { | |
1316 | iwl_scan_cancel_timeout(priv, 200); | |
1317 | iwl_force_scan_end(priv); | |
1318 | } | |
1319 | ||
1320 | if (!mode_change) { | |
1321 | iwl_set_mode(priv, ctx); | |
1322 | if (!ctx->always_active) | |
1323 | ctx->is_active = false; | |
1324 | } | |
1325 | ||
1326 | /* | |
1327 | * When removing the IBSS interface, overwrite the | |
1328 | * BT traffic load with the stored one from the last | |
1329 | * notification, if any. If this is a device that | |
1330 | * doesn't implement this, this has no effect since | |
1331 | * both values are the same and zero. | |
1332 | */ | |
1333 | if (vif->type == NL80211_IFTYPE_ADHOC) | |
1334 | priv->bt_traffic_load = priv->last_bt_traffic_load; | |
1335 | } | |
1336 | ||
1337 | static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw, | |
1338 | struct ieee80211_vif *vif) | |
1339 | { | |
d0f76d68 | 1340 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1341 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
1342 | ||
1343 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1344 | ||
b1eea297 | 1345 | mutex_lock(&priv->mutex); |
0b7a4c78 WYG |
1346 | |
1347 | if (WARN_ON(ctx->vif != vif)) { | |
1348 | struct iwl_rxon_context *tmp; | |
1349 | IWL_ERR(priv, "ctx->vif = %p, vif = %p\n", ctx->vif, vif); | |
1350 | for_each_context(priv, tmp) | |
1351 | IWL_ERR(priv, "\tID = %d:\tctx = %p\tctx->vif = %p\n", | |
1352 | tmp->ctxid, tmp, tmp->vif); | |
1353 | } | |
1354 | ctx->vif = NULL; | |
1355 | ||
1356 | iwl_teardown_interface(priv, vif, false); | |
1357 | ||
b1eea297 | 1358 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1359 | |
1360 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1361 | ||
1362 | } | |
1363 | ||
1364 | static int iwlagn_mac_change_interface(struct ieee80211_hw *hw, | |
1365 | struct ieee80211_vif *vif, | |
1366 | enum nl80211_iftype newtype, bool newp2p) | |
1367 | { | |
d0f76d68 | 1368 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
0b7a4c78 WYG |
1369 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
1370 | struct iwl_rxon_context *bss_ctx = &priv->contexts[IWL_RXON_CTX_BSS]; | |
1371 | struct iwl_rxon_context *tmp; | |
1372 | enum nl80211_iftype newviftype = newtype; | |
1373 | u32 interface_modes; | |
1374 | int err; | |
1375 | ||
1376 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1377 | ||
1378 | newtype = ieee80211_iftype_p2p(newtype, newp2p); | |
1379 | ||
b1eea297 | 1380 | mutex_lock(&priv->mutex); |
0b7a4c78 | 1381 | |
83626404 | 1382 | if (!ctx->vif || !iwl_is_ready_rf(priv)) { |
0b7a4c78 WYG |
1383 | /* |
1384 | * Huh? But wait ... this can maybe happen when | |
1385 | * we're in the middle of a firmware restart! | |
1386 | */ | |
1387 | err = -EBUSY; | |
1388 | goto out; | |
1389 | } | |
1390 | ||
1391 | interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes; | |
1392 | ||
1393 | if (!(interface_modes & BIT(newtype))) { | |
1394 | err = -EBUSY; | |
1395 | goto out; | |
1396 | } | |
1397 | ||
1398 | /* | |
1399 | * Refuse a change that should be done by moving from the PAN | |
1400 | * context to the BSS context instead, if the BSS context is | |
1401 | * available and can support the new interface type. | |
1402 | */ | |
1403 | if (ctx->ctxid == IWL_RXON_CTX_PAN && !bss_ctx->vif && | |
1404 | (bss_ctx->interface_modes & BIT(newtype) || | |
1405 | bss_ctx->exclusive_interface_modes & BIT(newtype))) { | |
1406 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); | |
1407 | err = -EBUSY; | |
1408 | goto out; | |
1409 | } | |
1410 | ||
1411 | if (ctx->exclusive_interface_modes & BIT(newtype)) { | |
1412 | for_each_context(priv, tmp) { | |
1413 | if (ctx == tmp) | |
1414 | continue; | |
1415 | ||
1416 | if (!tmp->vif) | |
1417 | continue; | |
1418 | ||
1419 | /* | |
1420 | * The current mode switch would be exclusive, but | |
1421 | * another context is active ... refuse the switch. | |
1422 | */ | |
1423 | err = -EBUSY; | |
1424 | goto out; | |
1425 | } | |
1426 | } | |
1427 | ||
1428 | /* success */ | |
1429 | iwl_teardown_interface(priv, vif, true); | |
1430 | vif->type = newviftype; | |
1431 | vif->p2p = newp2p; | |
1432 | err = iwl_setup_interface(priv, ctx); | |
1433 | WARN_ON(err); | |
1434 | /* | |
1435 | * We've switched internally, but submitting to the | |
1436 | * device may have failed for some reason. Mask this | |
1437 | * error, because otherwise mac80211 will not switch | |
1438 | * (and set the interface type back) and we'll be | |
1439 | * out of sync with it. | |
1440 | */ | |
1441 | err = 0; | |
1442 | ||
1443 | out: | |
b1eea297 | 1444 | mutex_unlock(&priv->mutex); |
0b7a4c78 WYG |
1445 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
1446 | ||
1447 | return err; | |
1448 | } | |
1449 | ||
ba4c5319 WYG |
1450 | static int iwlagn_mac_hw_scan(struct ieee80211_hw *hw, |
1451 | struct ieee80211_vif *vif, | |
1452 | struct cfg80211_scan_request *req) | |
1453 | { | |
d0f76d68 | 1454 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
ba4c5319 WYG |
1455 | int ret; |
1456 | ||
1457 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1458 | ||
1459 | if (req->n_channels == 0) | |
1460 | return -EINVAL; | |
1461 | ||
b1eea297 | 1462 | mutex_lock(&priv->mutex); |
ba4c5319 WYG |
1463 | |
1464 | /* | |
1465 | * If an internal scan is in progress, just set | |
1466 | * up the scan_request as per above. | |
1467 | */ | |
1468 | if (priv->scan_type != IWL_SCAN_NORMAL) { | |
1469 | IWL_DEBUG_SCAN(priv, | |
1470 | "SCAN request during internal scan - defer\n"); | |
1471 | priv->scan_request = req; | |
1472 | priv->scan_vif = vif; | |
1473 | ret = 0; | |
1474 | } else { | |
1475 | priv->scan_request = req; | |
1476 | priv->scan_vif = vif; | |
1477 | /* | |
1478 | * mac80211 will only ask for one band at a time | |
1479 | * so using channels[0] here is ok | |
1480 | */ | |
1481 | ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL, | |
1482 | req->channels[0]->band); | |
1483 | if (ret) { | |
1484 | priv->scan_request = NULL; | |
1485 | priv->scan_vif = NULL; | |
1486 | } | |
1487 | } | |
1488 | ||
1489 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1490 | ||
b1eea297 | 1491 | mutex_unlock(&priv->mutex); |
ba4c5319 WYG |
1492 | |
1493 | return ret; | |
1494 | } | |
1495 | ||
76b29331 WYG |
1496 | static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id) |
1497 | { | |
9451ca1a JB |
1498 | struct iwl_addsta_cmd cmd = { |
1499 | .mode = STA_CONTROL_MODIFY_MSK, | |
1500 | .station_flags_msk = STA_FLG_PWR_SAVE_MSK, | |
1501 | .sta.sta_id = sta_id, | |
1502 | }; | |
76b29331 | 1503 | |
9451ca1a | 1504 | iwl_send_add_sta(priv, &cmd, CMD_ASYNC); |
76b29331 WYG |
1505 | } |
1506 | ||
1507 | static void iwlagn_mac_sta_notify(struct ieee80211_hw *hw, | |
1508 | struct ieee80211_vif *vif, | |
1509 | enum sta_notify_cmd cmd, | |
1510 | struct ieee80211_sta *sta) | |
1511 | { | |
d0f76d68 | 1512 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
76b29331 WYG |
1513 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
1514 | int sta_id; | |
1515 | ||
1516 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
1517 | ||
1518 | switch (cmd) { | |
1519 | case STA_NOTIFY_SLEEP: | |
1520 | WARN_ON(!sta_priv->client); | |
1521 | sta_priv->asleep = true; | |
1522 | if (atomic_read(&sta_priv->pending_frames) > 0) | |
1523 | ieee80211_sta_block_awake(hw, sta, true); | |
1524 | break; | |
1525 | case STA_NOTIFY_AWAKE: | |
1526 | WARN_ON(!sta_priv->client); | |
1527 | if (!sta_priv->asleep) | |
1528 | break; | |
1529 | sta_priv->asleep = false; | |
1530 | sta_id = iwl_sta_id(sta); | |
1531 | if (sta_id != IWL_INVALID_STATION) | |
1532 | iwl_sta_modify_ps_wake(priv, sta_id); | |
1533 | break; | |
1534 | default: | |
1535 | break; | |
1536 | } | |
1537 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
1538 | } | |
1539 | ||
7335613a WYG |
1540 | struct ieee80211_ops iwlagn_hw_ops = { |
1541 | .tx = iwlagn_mac_tx, | |
1542 | .start = iwlagn_mac_start, | |
1543 | .stop = iwlagn_mac_stop, | |
1544 | #ifdef CONFIG_PM_SLEEP | |
1545 | .suspend = iwlagn_mac_suspend, | |
1546 | .resume = iwlagn_mac_resume, | |
1547 | #endif | |
1548 | .add_interface = iwlagn_mac_add_interface, | |
1549 | .remove_interface = iwlagn_mac_remove_interface, | |
1550 | .change_interface = iwlagn_mac_change_interface, | |
1551 | .config = iwlagn_mac_config, | |
1552 | .configure_filter = iwlagn_configure_filter, | |
1553 | .set_key = iwlagn_mac_set_key, | |
1554 | .update_tkip_key = iwlagn_mac_update_tkip_key, | |
1555 | .set_rekey_data = iwlagn_mac_set_rekey_data, | |
1556 | .conf_tx = iwlagn_mac_conf_tx, | |
1557 | .bss_info_changed = iwlagn_bss_info_changed, | |
1558 | .ampdu_action = iwlagn_mac_ampdu_action, | |
1559 | .hw_scan = iwlagn_mac_hw_scan, | |
1560 | .sta_notify = iwlagn_mac_sta_notify, | |
fb5fe5b9 | 1561 | .sta_state = iwlagn_mac_sta_state, |
7335613a WYG |
1562 | .channel_switch = iwlagn_mac_channel_switch, |
1563 | .flush = iwlagn_mac_flush, | |
1564 | .tx_last_beacon = iwlagn_mac_tx_last_beacon, | |
1565 | .remain_on_channel = iwlagn_mac_remain_on_channel, | |
1566 | .cancel_remain_on_channel = iwlagn_mac_cancel_remain_on_channel, | |
1567 | .rssi_callback = iwlagn_mac_rssi_callback, | |
1568 | CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd) | |
1569 | CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump) | |
7335613a WYG |
1570 | .set_tim = iwlagn_mac_set_tim, |
1571 | }; | |
1572 | ||
1573 | /* This function both allocates and initializes hw and priv. */ | |
1574 | struct ieee80211_hw *iwl_alloc_all(void) | |
1575 | { | |
1576 | struct iwl_priv *priv; | |
d0f76d68 | 1577 | struct iwl_op_mode *op_mode; |
7335613a WYG |
1578 | /* mac80211 allocates memory for this device instance, including |
1579 | * space for this driver's private structure */ | |
1580 | struct ieee80211_hw *hw; | |
1581 | ||
d0f76d68 EG |
1582 | hw = ieee80211_alloc_hw(sizeof(struct iwl_priv) + |
1583 | sizeof(struct iwl_op_mode), &iwlagn_hw_ops); | |
7335613a WYG |
1584 | if (!hw) |
1585 | goto out; | |
1586 | ||
d0f76d68 EG |
1587 | op_mode = hw->priv; |
1588 | priv = IWL_OP_MODE_GET_DVM(op_mode); | |
7335613a WYG |
1589 | priv->hw = hw; |
1590 | ||
1591 | out: | |
1592 | return hw; | |
1593 | } |