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df48c323 | 1 | /****************************************************************************** |
df48c323 TW |
2 | * |
3 | * GPL LICENSE SUMMARY | |
4 | * | |
01f8162a | 5 | * Copyright(c) 2008 - 2009 Intel Corporation. All rights reserved. |
df48c323 TW |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of version 2 of the GNU General Public License as | |
9 | * published by the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
19 | * USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution | |
22 | * in the file called LICENSE.GPL. | |
23 | * | |
24 | * Contact Information: | |
759ef89f | 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
df48c323 TW |
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> | |
8ccde88a | 31 | #include <linux/etherdevice.h> |
1d0a082d | 32 | #include <net/mac80211.h> |
df48c323 | 33 | |
6bc913bd | 34 | #include "iwl-eeprom.h" |
3e0d4cb1 | 35 | #include "iwl-dev.h" /* FIXME: remove */ |
19335774 | 36 | #include "iwl-debug.h" |
df48c323 | 37 | #include "iwl-core.h" |
b661c819 | 38 | #include "iwl-io.h" |
ad97edd2 | 39 | #include "iwl-rfkill.h" |
5da4b55f | 40 | #include "iwl-power.h" |
83dde8c9 | 41 | #include "iwl-sta.h" |
df48c323 | 42 | |
1d0a082d | 43 | |
df48c323 TW |
44 | MODULE_DESCRIPTION("iwl core"); |
45 | MODULE_VERSION(IWLWIFI_VERSION); | |
a7b75207 | 46 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
712b6cf5 | 47 | MODULE_LICENSE("GPL"); |
df48c323 | 48 | |
c7de35cd RR |
49 | #define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \ |
50 | [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \ | |
51 | IWL_RATE_SISO_##s##M_PLCP, \ | |
52 | IWL_RATE_MIMO2_##s##M_PLCP,\ | |
53 | IWL_RATE_MIMO3_##s##M_PLCP,\ | |
54 | IWL_RATE_##r##M_IEEE, \ | |
55 | IWL_RATE_##ip##M_INDEX, \ | |
56 | IWL_RATE_##in##M_INDEX, \ | |
57 | IWL_RATE_##rp##M_INDEX, \ | |
58 | IWL_RATE_##rn##M_INDEX, \ | |
59 | IWL_RATE_##pp##M_INDEX, \ | |
60 | IWL_RATE_##np##M_INDEX } | |
61 | ||
62 | /* | |
63 | * Parameter order: | |
64 | * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate | |
65 | * | |
66 | * If there isn't a valid next or previous rate then INV is used which | |
67 | * maps to IWL_RATE_INVALID | |
68 | * | |
69 | */ | |
1826dcc0 | 70 | const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = { |
c7de35cd RR |
71 | IWL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */ |
72 | IWL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */ | |
73 | IWL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */ | |
74 | IWL_DECLARE_RATE_INFO(11, INV, 9, 12, 9, 12, 5, 18), /* 11mbps */ | |
75 | IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */ | |
76 | IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */ | |
77 | IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */ | |
78 | IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */ | |
79 | IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */ | |
80 | IWL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */ | |
81 | IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */ | |
82 | IWL_DECLARE_RATE_INFO(54, 54, 48, INV, 48, INV, 48, INV),/* 54mbps */ | |
83 | IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */ | |
84 | /* FIXME:RS: ^^ should be INV (legacy) */ | |
85 | }; | |
1826dcc0 | 86 | EXPORT_SYMBOL(iwl_rates); |
c7de35cd | 87 | |
e7d326ac TW |
88 | /** |
89 | * translate ucode response to mac80211 tx status control values | |
90 | */ | |
91 | void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags, | |
e6a9854b | 92 | struct ieee80211_tx_info *info) |
e7d326ac TW |
93 | { |
94 | int rate_index; | |
e6a9854b | 95 | struct ieee80211_tx_rate *r = &info->control.rates[0]; |
e7d326ac | 96 | |
e6a9854b | 97 | info->antenna_sel_tx = |
e7d326ac TW |
98 | ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); |
99 | if (rate_n_flags & RATE_MCS_HT_MSK) | |
e6a9854b | 100 | r->flags |= IEEE80211_TX_RC_MCS; |
e7d326ac | 101 | if (rate_n_flags & RATE_MCS_GF_MSK) |
e6a9854b | 102 | r->flags |= IEEE80211_TX_RC_GREEN_FIELD; |
e7d326ac | 103 | if (rate_n_flags & RATE_MCS_FAT_MSK) |
e6a9854b | 104 | r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; |
e7d326ac | 105 | if (rate_n_flags & RATE_MCS_DUP_MSK) |
e6a9854b | 106 | r->flags |= IEEE80211_TX_RC_DUP_DATA; |
e7d326ac | 107 | if (rate_n_flags & RATE_MCS_SGI_MSK) |
e6a9854b | 108 | r->flags |= IEEE80211_TX_RC_SHORT_GI; |
e7d326ac | 109 | rate_index = iwl_hwrate_to_plcp_idx(rate_n_flags); |
e6a9854b | 110 | if (info->band == IEEE80211_BAND_5GHZ) |
e7d326ac | 111 | rate_index -= IWL_FIRST_OFDM_RATE; |
e6a9854b | 112 | r->idx = rate_index; |
e7d326ac TW |
113 | } |
114 | EXPORT_SYMBOL(iwl_hwrate_to_tx_control); | |
115 | ||
116 | int iwl_hwrate_to_plcp_idx(u32 rate_n_flags) | |
117 | { | |
118 | int idx = 0; | |
119 | ||
120 | /* HT rate format */ | |
121 | if (rate_n_flags & RATE_MCS_HT_MSK) { | |
122 | idx = (rate_n_flags & 0xff); | |
123 | ||
60d32215 DH |
124 | if (idx >= IWL_RATE_MIMO3_6M_PLCP) |
125 | idx = idx - IWL_RATE_MIMO3_6M_PLCP; | |
126 | else if (idx >= IWL_RATE_MIMO2_6M_PLCP) | |
e7d326ac TW |
127 | idx = idx - IWL_RATE_MIMO2_6M_PLCP; |
128 | ||
129 | idx += IWL_FIRST_OFDM_RATE; | |
130 | /* skip 9M not supported in ht*/ | |
131 | if (idx >= IWL_RATE_9M_INDEX) | |
132 | idx += 1; | |
133 | if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE)) | |
134 | return idx; | |
135 | ||
136 | /* legacy rate format, search for match in table */ | |
137 | } else { | |
138 | for (idx = 0; idx < ARRAY_SIZE(iwl_rates); idx++) | |
139 | if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF)) | |
140 | return idx; | |
141 | } | |
142 | ||
143 | return -1; | |
144 | } | |
145 | EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx); | |
146 | ||
76eff18b TW |
147 | u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant) |
148 | { | |
149 | int i; | |
150 | u8 ind = ant; | |
151 | for (i = 0; i < RATE_ANT_NUM - 1; i++) { | |
152 | ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0; | |
153 | if (priv->hw_params.valid_tx_ant & BIT(ind)) | |
154 | return ind; | |
155 | } | |
156 | return ant; | |
157 | } | |
57bd1bea TW |
158 | |
159 | const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; | |
160 | EXPORT_SYMBOL(iwl_bcast_addr); | |
161 | ||
162 | ||
1d0a082d AK |
163 | /* This function both allocates and initializes hw and priv. */ |
164 | struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg, | |
165 | struct ieee80211_ops *hw_ops) | |
166 | { | |
167 | struct iwl_priv *priv; | |
168 | ||
169 | /* mac80211 allocates memory for this device instance, including | |
170 | * space for this driver's private structure */ | |
171 | struct ieee80211_hw *hw = | |
172 | ieee80211_alloc_hw(sizeof(struct iwl_priv), hw_ops); | |
173 | if (hw == NULL) { | |
a3139c59 SO |
174 | printk(KERN_ERR "%s: Can not allocate network device\n", |
175 | cfg->name); | |
1d0a082d AK |
176 | goto out; |
177 | } | |
178 | ||
179 | priv = hw->priv; | |
180 | priv->hw = hw; | |
181 | ||
182 | out: | |
183 | return hw; | |
184 | } | |
185 | EXPORT_SYMBOL(iwl_alloc_all); | |
186 | ||
b661c819 TW |
187 | void iwl_hw_detect(struct iwl_priv *priv) |
188 | { | |
189 | priv->hw_rev = _iwl_read32(priv, CSR_HW_REV); | |
190 | priv->hw_wa_rev = _iwl_read32(priv, CSR_HW_REV_WA_REG); | |
191 | pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &priv->rev_id); | |
192 | } | |
193 | EXPORT_SYMBOL(iwl_hw_detect); | |
194 | ||
1053d35f RR |
195 | int iwl_hw_nic_init(struct iwl_priv *priv) |
196 | { | |
197 | unsigned long flags; | |
198 | struct iwl_rx_queue *rxq = &priv->rxq; | |
199 | int ret; | |
200 | ||
201 | /* nic_init */ | |
1053d35f | 202 | spin_lock_irqsave(&priv->lock, flags); |
1b73af82 | 203 | priv->cfg->ops->lib->apm_ops.init(priv); |
1053d35f RR |
204 | iwl_write32(priv, CSR_INT_COALESCING, 512 / 32); |
205 | spin_unlock_irqrestore(&priv->lock, flags); | |
206 | ||
207 | ret = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN); | |
208 | ||
209 | priv->cfg->ops->lib->apm_ops.config(priv); | |
210 | ||
211 | /* Allocate the RX queue, or reset if it is already allocated */ | |
212 | if (!rxq->bd) { | |
213 | ret = iwl_rx_queue_alloc(priv); | |
214 | if (ret) { | |
15b1687c | 215 | IWL_ERR(priv, "Unable to initialize Rx queue\n"); |
1053d35f RR |
216 | return -ENOMEM; |
217 | } | |
218 | } else | |
219 | iwl_rx_queue_reset(priv, rxq); | |
220 | ||
221 | iwl_rx_replenish(priv); | |
222 | ||
223 | iwl_rx_init(priv, rxq); | |
224 | ||
225 | spin_lock_irqsave(&priv->lock, flags); | |
226 | ||
227 | rxq->need_update = 1; | |
228 | iwl_rx_queue_update_write_ptr(priv, rxq); | |
229 | ||
230 | spin_unlock_irqrestore(&priv->lock, flags); | |
231 | ||
232 | /* Allocate and init all Tx and Command queues */ | |
233 | ret = iwl_txq_ctx_reset(priv); | |
234 | if (ret) | |
235 | return ret; | |
236 | ||
237 | set_bit(STATUS_INIT, &priv->status); | |
238 | ||
239 | return 0; | |
240 | } | |
241 | EXPORT_SYMBOL(iwl_hw_nic_init); | |
242 | ||
14d2aac5 AK |
243 | /* |
244 | * QoS support | |
245 | */ | |
246 | void iwl_activate_qos(struct iwl_priv *priv, u8 force) | |
247 | { | |
248 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
249 | return; | |
250 | ||
251 | priv->qos_data.def_qos_parm.qos_flags = 0; | |
252 | ||
253 | if (priv->qos_data.qos_cap.q_AP.queue_request && | |
254 | !priv->qos_data.qos_cap.q_AP.txop_request) | |
255 | priv->qos_data.def_qos_parm.qos_flags |= | |
256 | QOS_PARAM_FLG_TXOP_TYPE_MSK; | |
257 | if (priv->qos_data.qos_active) | |
258 | priv->qos_data.def_qos_parm.qos_flags |= | |
259 | QOS_PARAM_FLG_UPDATE_EDCA_MSK; | |
260 | ||
261 | if (priv->current_ht_config.is_ht) | |
262 | priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK; | |
263 | ||
264 | if (force || iwl_is_associated(priv)) { | |
265 | IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n", | |
266 | priv->qos_data.qos_active, | |
267 | priv->qos_data.def_qos_parm.qos_flags); | |
268 | ||
269 | iwl_send_cmd_pdu_async(priv, REPLY_QOS_PARAM, | |
270 | sizeof(struct iwl_qosparam_cmd), | |
271 | &priv->qos_data.def_qos_parm, NULL); | |
272 | } | |
273 | } | |
274 | EXPORT_SYMBOL(iwl_activate_qos); | |
275 | ||
c7de35cd | 276 | void iwl_reset_qos(struct iwl_priv *priv) |
bf85ea4f AK |
277 | { |
278 | u16 cw_min = 15; | |
279 | u16 cw_max = 1023; | |
280 | u8 aifs = 2; | |
30dab79e | 281 | bool is_legacy = false; |
bf85ea4f AK |
282 | unsigned long flags; |
283 | int i; | |
284 | ||
285 | spin_lock_irqsave(&priv->lock, flags); | |
30dab79e WT |
286 | /* QoS always active in AP and ADHOC mode |
287 | * In STA mode wait for association | |
288 | */ | |
289 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC || | |
290 | priv->iw_mode == NL80211_IFTYPE_AP) | |
291 | priv->qos_data.qos_active = 1; | |
292 | else | |
293 | priv->qos_data.qos_active = 0; | |
bf85ea4f | 294 | |
30dab79e WT |
295 | /* check for legacy mode */ |
296 | if ((priv->iw_mode == NL80211_IFTYPE_ADHOC && | |
297 | (priv->active_rate & IWL_OFDM_RATES_MASK) == 0) || | |
298 | (priv->iw_mode == NL80211_IFTYPE_STATION && | |
299 | (priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK) == 0)) { | |
bf85ea4f AK |
300 | cw_min = 31; |
301 | is_legacy = 1; | |
302 | } | |
303 | ||
304 | if (priv->qos_data.qos_active) | |
305 | aifs = 3; | |
306 | ||
307 | priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min); | |
308 | priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max); | |
309 | priv->qos_data.def_qos_parm.ac[0].aifsn = aifs; | |
310 | priv->qos_data.def_qos_parm.ac[0].edca_txop = 0; | |
311 | priv->qos_data.def_qos_parm.ac[0].reserved1 = 0; | |
312 | ||
313 | if (priv->qos_data.qos_active) { | |
314 | i = 1; | |
315 | priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min); | |
316 | priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max); | |
317 | priv->qos_data.def_qos_parm.ac[i].aifsn = 7; | |
318 | priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; | |
319 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
320 | ||
321 | i = 2; | |
322 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
323 | cpu_to_le16((cw_min + 1) / 2 - 1); | |
324 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
325 | cpu_to_le16(cw_max); | |
326 | priv->qos_data.def_qos_parm.ac[i].aifsn = 2; | |
327 | if (is_legacy) | |
328 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
329 | cpu_to_le16(6016); | |
330 | else | |
331 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
332 | cpu_to_le16(3008); | |
333 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
334 | ||
335 | i = 3; | |
336 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
337 | cpu_to_le16((cw_min + 1) / 4 - 1); | |
338 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
339 | cpu_to_le16((cw_max + 1) / 2 - 1); | |
340 | priv->qos_data.def_qos_parm.ac[i].aifsn = 2; | |
341 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
342 | if (is_legacy) | |
343 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
344 | cpu_to_le16(3264); | |
345 | else | |
346 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
347 | cpu_to_le16(1504); | |
348 | } else { | |
349 | for (i = 1; i < 4; i++) { | |
350 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
351 | cpu_to_le16(cw_min); | |
352 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
353 | cpu_to_le16(cw_max); | |
354 | priv->qos_data.def_qos_parm.ac[i].aifsn = aifs; | |
355 | priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; | |
356 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
357 | } | |
358 | } | |
e1623446 | 359 | IWL_DEBUG_QOS(priv, "set QoS to default \n"); |
bf85ea4f AK |
360 | |
361 | spin_unlock_irqrestore(&priv->lock, flags); | |
362 | } | |
c7de35cd RR |
363 | EXPORT_SYMBOL(iwl_reset_qos); |
364 | ||
d9fe60de JB |
365 | #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */ |
366 | #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */ | |
c7de35cd | 367 | static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv, |
d9fe60de | 368 | struct ieee80211_sta_ht_cap *ht_info, |
c7de35cd RR |
369 | enum ieee80211_band band) |
370 | { | |
39130df3 RR |
371 | u16 max_bit_rate = 0; |
372 | u8 rx_chains_num = priv->hw_params.rx_chains_num; | |
373 | u8 tx_chains_num = priv->hw_params.tx_chains_num; | |
374 | ||
c7de35cd | 375 | ht_info->cap = 0; |
d9fe60de | 376 | memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); |
c7de35cd | 377 | |
d9fe60de | 378 | ht_info->ht_supported = true; |
c7de35cd | 379 | |
d9fe60de JB |
380 | ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; |
381 | ht_info->cap |= IEEE80211_HT_CAP_SGI_20; | |
382 | ht_info->cap |= (IEEE80211_HT_CAP_SM_PS & | |
00c5ae2f | 383 | (WLAN_HT_CAP_SM_PS_DISABLED << 2)); |
39130df3 RR |
384 | |
385 | max_bit_rate = MAX_BIT_RATE_20_MHZ; | |
c7de35cd | 386 | if (priv->hw_params.fat_channel & BIT(band)) { |
d9fe60de JB |
387 | ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; |
388 | ht_info->cap |= IEEE80211_HT_CAP_SGI_40; | |
389 | ht_info->mcs.rx_mask[4] = 0x01; | |
39130df3 | 390 | max_bit_rate = MAX_BIT_RATE_40_MHZ; |
c7de35cd | 391 | } |
c7de35cd RR |
392 | |
393 | if (priv->cfg->mod_params->amsdu_size_8K) | |
d9fe60de | 394 | ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU; |
c7de35cd RR |
395 | |
396 | ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF; | |
397 | ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF; | |
398 | ||
d9fe60de | 399 | ht_info->mcs.rx_mask[0] = 0xFF; |
39130df3 | 400 | if (rx_chains_num >= 2) |
d9fe60de | 401 | ht_info->mcs.rx_mask[1] = 0xFF; |
39130df3 | 402 | if (rx_chains_num >= 3) |
d9fe60de | 403 | ht_info->mcs.rx_mask[2] = 0xFF; |
39130df3 RR |
404 | |
405 | /* Highest supported Rx data rate */ | |
406 | max_bit_rate *= rx_chains_num; | |
d9fe60de JB |
407 | WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK); |
408 | ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate); | |
39130df3 RR |
409 | |
410 | /* Tx MCS capabilities */ | |
d9fe60de | 411 | ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; |
39130df3 | 412 | if (tx_chains_num != rx_chains_num) { |
d9fe60de JB |
413 | ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; |
414 | ht_info->mcs.tx_params |= ((tx_chains_num - 1) << | |
415 | IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); | |
39130df3 | 416 | } |
c7de35cd | 417 | } |
c7de35cd RR |
418 | |
419 | static void iwlcore_init_hw_rates(struct iwl_priv *priv, | |
420 | struct ieee80211_rate *rates) | |
421 | { | |
422 | int i; | |
423 | ||
424 | for (i = 0; i < IWL_RATE_COUNT; i++) { | |
1826dcc0 | 425 | rates[i].bitrate = iwl_rates[i].ieee * 5; |
c7de35cd RR |
426 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ |
427 | rates[i].hw_value_short = i; | |
428 | rates[i].flags = 0; | |
429 | if ((i > IWL_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) { | |
430 | /* | |
431 | * If CCK != 1M then set short preamble rate flag. | |
432 | */ | |
433 | rates[i].flags |= | |
1826dcc0 | 434 | (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ? |
c7de35cd RR |
435 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
436 | } | |
437 | } | |
438 | } | |
439 | ||
8ccde88a | 440 | |
c7de35cd RR |
441 | /** |
442 | * iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom | |
443 | */ | |
534166de | 444 | int iwlcore_init_geos(struct iwl_priv *priv) |
c7de35cd RR |
445 | { |
446 | struct iwl_channel_info *ch; | |
447 | struct ieee80211_supported_band *sband; | |
448 | struct ieee80211_channel *channels; | |
449 | struct ieee80211_channel *geo_ch; | |
450 | struct ieee80211_rate *rates; | |
451 | int i = 0; | |
452 | ||
453 | if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates || | |
454 | priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) { | |
e1623446 | 455 | IWL_DEBUG_INFO(priv, "Geography modes already initialized.\n"); |
c7de35cd RR |
456 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); |
457 | return 0; | |
458 | } | |
459 | ||
460 | channels = kzalloc(sizeof(struct ieee80211_channel) * | |
461 | priv->channel_count, GFP_KERNEL); | |
462 | if (!channels) | |
463 | return -ENOMEM; | |
464 | ||
465 | rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)), | |
466 | GFP_KERNEL); | |
467 | if (!rates) { | |
468 | kfree(channels); | |
469 | return -ENOMEM; | |
470 | } | |
471 | ||
472 | /* 5.2GHz channels start after the 2.4GHz channels */ | |
473 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; | |
474 | sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)]; | |
475 | /* just OFDM */ | |
476 | sband->bitrates = &rates[IWL_FIRST_OFDM_RATE]; | |
477 | sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE; | |
478 | ||
49779293 | 479 | if (priv->cfg->sku & IWL_SKU_N) |
d9fe60de | 480 | iwlcore_init_ht_hw_capab(priv, &sband->ht_cap, |
49779293 | 481 | IEEE80211_BAND_5GHZ); |
c7de35cd RR |
482 | |
483 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; | |
484 | sband->channels = channels; | |
485 | /* OFDM & CCK */ | |
486 | sband->bitrates = rates; | |
487 | sband->n_bitrates = IWL_RATE_COUNT; | |
488 | ||
49779293 | 489 | if (priv->cfg->sku & IWL_SKU_N) |
d9fe60de | 490 | iwlcore_init_ht_hw_capab(priv, &sband->ht_cap, |
49779293 | 491 | IEEE80211_BAND_2GHZ); |
c7de35cd RR |
492 | |
493 | priv->ieee_channels = channels; | |
494 | priv->ieee_rates = rates; | |
495 | ||
c7de35cd RR |
496 | for (i = 0; i < priv->channel_count; i++) { |
497 | ch = &priv->channel_info[i]; | |
498 | ||
499 | /* FIXME: might be removed if scan is OK */ | |
500 | if (!is_channel_valid(ch)) | |
501 | continue; | |
502 | ||
503 | if (is_channel_a_band(ch)) | |
504 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; | |
505 | else | |
506 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; | |
507 | ||
508 | geo_ch = &sband->channels[sband->n_channels++]; | |
509 | ||
510 | geo_ch->center_freq = | |
511 | ieee80211_channel_to_frequency(ch->channel); | |
512 | geo_ch->max_power = ch->max_power_avg; | |
513 | geo_ch->max_antenna_gain = 0xff; | |
514 | geo_ch->hw_value = ch->channel; | |
515 | ||
516 | if (is_channel_valid(ch)) { | |
517 | if (!(ch->flags & EEPROM_CHANNEL_IBSS)) | |
518 | geo_ch->flags |= IEEE80211_CHAN_NO_IBSS; | |
519 | ||
520 | if (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) | |
521 | geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN; | |
522 | ||
523 | if (ch->flags & EEPROM_CHANNEL_RADAR) | |
524 | geo_ch->flags |= IEEE80211_CHAN_RADAR; | |
525 | ||
963f5517 | 526 | geo_ch->flags |= ch->fat_extension_channel; |
4d38c2e8 | 527 | |
630fe9b6 TW |
528 | if (ch->max_power_avg > priv->tx_power_channel_lmt) |
529 | priv->tx_power_channel_lmt = ch->max_power_avg; | |
c7de35cd RR |
530 | } else { |
531 | geo_ch->flags |= IEEE80211_CHAN_DISABLED; | |
532 | } | |
533 | ||
534 | /* Save flags for reg domain usage */ | |
535 | geo_ch->orig_flags = geo_ch->flags; | |
536 | ||
e1623446 | 537 | IWL_DEBUG_INFO(priv, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n", |
c7de35cd RR |
538 | ch->channel, geo_ch->center_freq, |
539 | is_channel_a_band(ch) ? "5.2" : "2.4", | |
540 | geo_ch->flags & IEEE80211_CHAN_DISABLED ? | |
541 | "restricted" : "valid", | |
542 | geo_ch->flags); | |
543 | } | |
544 | ||
545 | if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) && | |
546 | priv->cfg->sku & IWL_SKU_A) { | |
978785a3 TW |
547 | IWL_INFO(priv, "Incorrectly detected BG card as ABG. " |
548 | "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n", | |
a3139c59 SO |
549 | priv->pci_dev->device, |
550 | priv->pci_dev->subsystem_device); | |
c7de35cd RR |
551 | priv->cfg->sku &= ~IWL_SKU_A; |
552 | } | |
553 | ||
978785a3 | 554 | IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n", |
a3139c59 SO |
555 | priv->bands[IEEE80211_BAND_2GHZ].n_channels, |
556 | priv->bands[IEEE80211_BAND_5GHZ].n_channels); | |
c7de35cd RR |
557 | |
558 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
559 | ||
560 | return 0; | |
561 | } | |
534166de | 562 | EXPORT_SYMBOL(iwlcore_init_geos); |
c7de35cd RR |
563 | |
564 | /* | |
565 | * iwlcore_free_geos - undo allocations in iwlcore_init_geos | |
566 | */ | |
534166de | 567 | void iwlcore_free_geos(struct iwl_priv *priv) |
c7de35cd RR |
568 | { |
569 | kfree(priv->ieee_channels); | |
570 | kfree(priv->ieee_rates); | |
571 | clear_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
572 | } | |
534166de | 573 | EXPORT_SYMBOL(iwlcore_free_geos); |
c7de35cd | 574 | |
28a6b07a | 575 | static bool is_single_rx_stream(struct iwl_priv *priv) |
c7de35cd RR |
576 | { |
577 | return !priv->current_ht_config.is_ht || | |
d9fe60de JB |
578 | ((priv->current_ht_config.mcs.rx_mask[1] == 0) && |
579 | (priv->current_ht_config.mcs.rx_mask[2] == 0)); | |
c7de35cd | 580 | } |
963f5517 | 581 | |
47c5196e TW |
582 | static u8 iwl_is_channel_extension(struct iwl_priv *priv, |
583 | enum ieee80211_band band, | |
584 | u16 channel, u8 extension_chan_offset) | |
585 | { | |
586 | const struct iwl_channel_info *ch_info; | |
587 | ||
588 | ch_info = iwl_get_channel_info(priv, band, channel); | |
589 | if (!is_channel_valid(ch_info)) | |
590 | return 0; | |
591 | ||
d9fe60de | 592 | if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) |
963f5517 EG |
593 | return !(ch_info->fat_extension_channel & |
594 | IEEE80211_CHAN_NO_FAT_ABOVE); | |
d9fe60de | 595 | else if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) |
963f5517 EG |
596 | return !(ch_info->fat_extension_channel & |
597 | IEEE80211_CHAN_NO_FAT_BELOW); | |
47c5196e TW |
598 | |
599 | return 0; | |
600 | } | |
601 | ||
602 | u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv, | |
d9fe60de | 603 | struct ieee80211_sta_ht_cap *sta_ht_inf) |
47c5196e TW |
604 | { |
605 | struct iwl_ht_info *iwl_ht_conf = &priv->current_ht_config; | |
606 | ||
607 | if ((!iwl_ht_conf->is_ht) || | |
608 | (iwl_ht_conf->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ) || | |
d9fe60de | 609 | (iwl_ht_conf->extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE)) |
47c5196e TW |
610 | return 0; |
611 | ||
612 | if (sta_ht_inf) { | |
613 | if ((!sta_ht_inf->ht_supported) || | |
d9fe60de | 614 | (!(sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))) |
47c5196e TW |
615 | return 0; |
616 | } | |
617 | ||
618 | return iwl_is_channel_extension(priv, priv->band, | |
ae5eb026 JB |
619 | le16_to_cpu(priv->staging_rxon.channel), |
620 | iwl_ht_conf->extension_chan_offset); | |
47c5196e TW |
621 | } |
622 | EXPORT_SYMBOL(iwl_is_fat_tx_allowed); | |
623 | ||
8ccde88a SO |
624 | void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt) |
625 | { | |
626 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; | |
627 | ||
628 | if (hw_decrypt) | |
629 | rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK; | |
630 | else | |
631 | rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK; | |
632 | ||
633 | } | |
634 | EXPORT_SYMBOL(iwl_set_rxon_hwcrypto); | |
635 | ||
636 | /** | |
637 | * iwl_check_rxon_cmd - validate RXON structure is valid | |
638 | * | |
639 | * NOTE: This is really only useful during development and can eventually | |
640 | * be #ifdef'd out once the driver is stable and folks aren't actively | |
641 | * making changes | |
642 | */ | |
643 | int iwl_check_rxon_cmd(struct iwl_priv *priv) | |
644 | { | |
645 | int error = 0; | |
646 | int counter = 1; | |
647 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; | |
648 | ||
649 | if (rxon->flags & RXON_FLG_BAND_24G_MSK) { | |
650 | error |= le32_to_cpu(rxon->flags & | |
651 | (RXON_FLG_TGJ_NARROW_BAND_MSK | | |
652 | RXON_FLG_RADAR_DETECT_MSK)); | |
653 | if (error) | |
654 | IWL_WARN(priv, "check 24G fields %d | %d\n", | |
655 | counter++, error); | |
656 | } else { | |
657 | error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ? | |
658 | 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK); | |
659 | if (error) | |
660 | IWL_WARN(priv, "check 52 fields %d | %d\n", | |
661 | counter++, error); | |
662 | error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK); | |
663 | if (error) | |
664 | IWL_WARN(priv, "check 52 CCK %d | %d\n", | |
665 | counter++, error); | |
666 | } | |
667 | error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1; | |
668 | if (error) | |
669 | IWL_WARN(priv, "check mac addr %d | %d\n", counter++, error); | |
670 | ||
671 | /* make sure basic rates 6Mbps and 1Mbps are supported */ | |
672 | error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) && | |
673 | ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0)); | |
674 | if (error) | |
675 | IWL_WARN(priv, "check basic rate %d | %d\n", counter++, error); | |
676 | ||
677 | error |= (le16_to_cpu(rxon->assoc_id) > 2007); | |
678 | if (error) | |
679 | IWL_WARN(priv, "check assoc id %d | %d\n", counter++, error); | |
680 | ||
681 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) | |
682 | == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)); | |
683 | if (error) | |
684 | IWL_WARN(priv, "check CCK and short slot %d | %d\n", | |
685 | counter++, error); | |
686 | ||
687 | error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) | |
688 | == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)); | |
689 | if (error) | |
690 | IWL_WARN(priv, "check CCK & auto detect %d | %d\n", | |
691 | counter++, error); | |
692 | ||
693 | error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK | | |
694 | RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK); | |
695 | if (error) | |
696 | IWL_WARN(priv, "check TGG and auto detect %d | %d\n", | |
697 | counter++, error); | |
698 | ||
699 | if (error) | |
700 | IWL_WARN(priv, "Tuning to channel %d\n", | |
701 | le16_to_cpu(rxon->channel)); | |
702 | ||
703 | if (error) { | |
704 | IWL_ERR(priv, "Not a valid iwl_rxon_assoc_cmd field values\n"); | |
705 | return -1; | |
706 | } | |
707 | return 0; | |
708 | } | |
709 | EXPORT_SYMBOL(iwl_check_rxon_cmd); | |
710 | ||
711 | /** | |
712 | * iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed | |
713 | * @priv: staging_rxon is compared to active_rxon | |
714 | * | |
715 | * If the RXON structure is changing enough to require a new tune, | |
716 | * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that | |
717 | * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required. | |
718 | */ | |
719 | int iwl_full_rxon_required(struct iwl_priv *priv) | |
720 | { | |
721 | ||
722 | /* These items are only settable from the full RXON command */ | |
723 | if (!(iwl_is_associated(priv)) || | |
724 | compare_ether_addr(priv->staging_rxon.bssid_addr, | |
725 | priv->active_rxon.bssid_addr) || | |
726 | compare_ether_addr(priv->staging_rxon.node_addr, | |
727 | priv->active_rxon.node_addr) || | |
728 | compare_ether_addr(priv->staging_rxon.wlap_bssid_addr, | |
729 | priv->active_rxon.wlap_bssid_addr) || | |
730 | (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) || | |
731 | (priv->staging_rxon.channel != priv->active_rxon.channel) || | |
732 | (priv->staging_rxon.air_propagation != | |
733 | priv->active_rxon.air_propagation) || | |
734 | (priv->staging_rxon.ofdm_ht_single_stream_basic_rates != | |
735 | priv->active_rxon.ofdm_ht_single_stream_basic_rates) || | |
736 | (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates != | |
737 | priv->active_rxon.ofdm_ht_dual_stream_basic_rates) || | |
c2105fa7 DH |
738 | (priv->staging_rxon.ofdm_ht_triple_stream_basic_rates != |
739 | priv->active_rxon.ofdm_ht_triple_stream_basic_rates) || | |
8ccde88a SO |
740 | (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id)) |
741 | return 1; | |
742 | ||
743 | /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can | |
744 | * be updated with the RXON_ASSOC command -- however only some | |
745 | * flag transitions are allowed using RXON_ASSOC */ | |
746 | ||
747 | /* Check if we are not switching bands */ | |
748 | if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) != | |
749 | (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)) | |
750 | return 1; | |
751 | ||
752 | /* Check if we are switching association toggle */ | |
753 | if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) != | |
754 | (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) | |
755 | return 1; | |
756 | ||
757 | return 0; | |
758 | } | |
759 | EXPORT_SYMBOL(iwl_full_rxon_required); | |
760 | ||
761 | u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv) | |
762 | { | |
763 | int i; | |
764 | int rate_mask; | |
765 | ||
766 | /* Set rate mask*/ | |
767 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
768 | rate_mask = priv->active_rate_basic & IWL_CCK_RATES_MASK; | |
769 | else | |
770 | rate_mask = priv->active_rate_basic & IWL_OFDM_RATES_MASK; | |
771 | ||
772 | /* Find lowest valid rate */ | |
773 | for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID; | |
774 | i = iwl_rates[i].next_ieee) { | |
775 | if (rate_mask & (1 << i)) | |
776 | return iwl_rates[i].plcp; | |
777 | } | |
778 | ||
779 | /* No valid rate was found. Assign the lowest one */ | |
780 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) | |
781 | return IWL_RATE_1M_PLCP; | |
782 | else | |
783 | return IWL_RATE_6M_PLCP; | |
784 | } | |
785 | EXPORT_SYMBOL(iwl_rate_get_lowest_plcp); | |
786 | ||
47c5196e TW |
787 | void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) |
788 | { | |
c1adf9fb | 789 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
47c5196e TW |
790 | u32 val; |
791 | ||
42eb7c64 EG |
792 | if (!ht_info->is_ht) { |
793 | rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK | | |
794 | RXON_FLG_CHANNEL_MODE_PURE_40_MSK | | |
795 | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK | | |
796 | RXON_FLG_FAT_PROT_MSK | | |
797 | RXON_FLG_HT_PROT_MSK); | |
47c5196e | 798 | return; |
42eb7c64 | 799 | } |
47c5196e TW |
800 | |
801 | /* Set up channel bandwidth: 20 MHz only, or 20/40 mixed if fat ok */ | |
802 | if (iwl_is_fat_tx_allowed(priv, NULL)) | |
803 | rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED_MSK; | |
804 | else | |
805 | rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK | | |
806 | RXON_FLG_CHANNEL_MODE_PURE_40_MSK); | |
807 | ||
47c5196e TW |
808 | /* Note: control channel is opposite of extension channel */ |
809 | switch (ht_info->extension_chan_offset) { | |
d9fe60de | 810 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: |
47c5196e TW |
811 | rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); |
812 | break; | |
d9fe60de | 813 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: |
47c5196e TW |
814 | rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; |
815 | break; | |
d9fe60de | 816 | case IEEE80211_HT_PARAM_CHA_SEC_NONE: |
47c5196e TW |
817 | default: |
818 | rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK; | |
819 | break; | |
820 | } | |
821 | ||
822 | val = ht_info->ht_protection; | |
823 | ||
824 | rxon->flags |= cpu_to_le32(val << RXON_FLG_HT_OPERATING_MODE_POS); | |
825 | ||
45823531 AK |
826 | if (priv->cfg->ops->hcmd->set_rxon_chain) |
827 | priv->cfg->ops->hcmd->set_rxon_chain(priv); | |
47c5196e | 828 | |
e1623446 | 829 | IWL_DEBUG_ASSOC(priv, "supported HT rate 0x%X 0x%X 0x%X " |
47c5196e | 830 | "rxon flags 0x%X operation mode :0x%X " |
ae5eb026 | 831 | "extension channel offset 0x%x\n", |
d9fe60de JB |
832 | ht_info->mcs.rx_mask[0], |
833 | ht_info->mcs.rx_mask[1], | |
834 | ht_info->mcs.rx_mask[2], | |
47c5196e | 835 | le32_to_cpu(rxon->flags), ht_info->ht_protection, |
ae5eb026 | 836 | ht_info->extension_chan_offset); |
47c5196e TW |
837 | return; |
838 | } | |
839 | EXPORT_SYMBOL(iwl_set_rxon_ht); | |
840 | ||
9e5e6c32 TW |
841 | #define IWL_NUM_RX_CHAINS_MULTIPLE 3 |
842 | #define IWL_NUM_RX_CHAINS_SINGLE 2 | |
843 | #define IWL_NUM_IDLE_CHAINS_DUAL 2 | |
844 | #define IWL_NUM_IDLE_CHAINS_SINGLE 1 | |
845 | ||
846 | /* Determine how many receiver/antenna chains to use. | |
c7de35cd RR |
847 | * More provides better reception via diversity. Fewer saves power. |
848 | * MIMO (dual stream) requires at least 2, but works better with 3. | |
849 | * This does not determine *which* chains to use, just how many. | |
850 | */ | |
28a6b07a | 851 | static int iwl_get_active_rx_chain_count(struct iwl_priv *priv) |
c7de35cd | 852 | { |
28a6b07a TW |
853 | bool is_single = is_single_rx_stream(priv); |
854 | bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); | |
c7de35cd RR |
855 | |
856 | /* # of Rx chains to use when expecting MIMO. */ | |
12837be1 RR |
857 | if (is_single || (!is_cam && (priv->current_ht_config.sm_ps == |
858 | WLAN_HT_CAP_SM_PS_STATIC))) | |
9e5e6c32 | 859 | return IWL_NUM_RX_CHAINS_SINGLE; |
c7de35cd | 860 | else |
9e5e6c32 | 861 | return IWL_NUM_RX_CHAINS_MULTIPLE; |
28a6b07a | 862 | } |
c7de35cd | 863 | |
28a6b07a TW |
864 | static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt) |
865 | { | |
866 | int idle_cnt; | |
867 | bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); | |
c7de35cd | 868 | /* # Rx chains when idling and maybe trying to save power */ |
12837be1 | 869 | switch (priv->current_ht_config.sm_ps) { |
00c5ae2f TW |
870 | case WLAN_HT_CAP_SM_PS_STATIC: |
871 | case WLAN_HT_CAP_SM_PS_DYNAMIC: | |
9e5e6c32 TW |
872 | idle_cnt = (is_cam) ? IWL_NUM_IDLE_CHAINS_DUAL : |
873 | IWL_NUM_IDLE_CHAINS_SINGLE; | |
c7de35cd | 874 | break; |
00c5ae2f | 875 | case WLAN_HT_CAP_SM_PS_DISABLED: |
9e5e6c32 | 876 | idle_cnt = (is_cam) ? active_cnt : IWL_NUM_IDLE_CHAINS_SINGLE; |
c7de35cd | 877 | break; |
00c5ae2f | 878 | case WLAN_HT_CAP_SM_PS_INVALID: |
c7de35cd | 879 | default: |
15b1687c | 880 | IWL_ERR(priv, "invalid mimo ps mode %d\n", |
12837be1 | 881 | priv->current_ht_config.sm_ps); |
28a6b07a TW |
882 | WARN_ON(1); |
883 | idle_cnt = -1; | |
c7de35cd RR |
884 | break; |
885 | } | |
28a6b07a | 886 | return idle_cnt; |
c7de35cd RR |
887 | } |
888 | ||
04816448 GE |
889 | /* up to 4 chains */ |
890 | static u8 iwl_count_chain_bitmap(u32 chain_bitmap) | |
891 | { | |
892 | u8 res; | |
893 | res = (chain_bitmap & BIT(0)) >> 0; | |
894 | res += (chain_bitmap & BIT(1)) >> 1; | |
895 | res += (chain_bitmap & BIT(2)) >> 2; | |
896 | res += (chain_bitmap & BIT(4)) >> 4; | |
897 | return res; | |
898 | } | |
899 | ||
4c4df78f CR |
900 | /** |
901 | * iwl_is_monitor_mode - Determine if interface in monitor mode | |
902 | * | |
903 | * priv->iw_mode is set in add_interface, but add_interface is | |
904 | * never called for monitor mode. The only way mac80211 informs us about | |
905 | * monitor mode is through configuring filters (call to configure_filter). | |
906 | */ | |
279b05d4 | 907 | bool iwl_is_monitor_mode(struct iwl_priv *priv) |
4c4df78f CR |
908 | { |
909 | return !!(priv->staging_rxon.filter_flags & RXON_FILTER_PROMISC_MSK); | |
910 | } | |
279b05d4 | 911 | EXPORT_SYMBOL(iwl_is_monitor_mode); |
4c4df78f | 912 | |
c7de35cd RR |
913 | /** |
914 | * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image | |
915 | * | |
916 | * Selects how many and which Rx receivers/antennas/chains to use. | |
917 | * This should not be used for scan command ... it puts data in wrong place. | |
918 | */ | |
919 | void iwl_set_rxon_chain(struct iwl_priv *priv) | |
920 | { | |
28a6b07a TW |
921 | bool is_single = is_single_rx_stream(priv); |
922 | bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); | |
04816448 GE |
923 | u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt; |
924 | u32 active_chains; | |
28a6b07a | 925 | u16 rx_chain; |
c7de35cd RR |
926 | |
927 | /* Tell uCode which antennas are actually connected. | |
928 | * Before first association, we assume all antennas are connected. | |
929 | * Just after first association, iwl_chain_noise_calibration() | |
930 | * checks which antennas actually *are* connected. */ | |
04816448 GE |
931 | if (priv->chain_noise_data.active_chains) |
932 | active_chains = priv->chain_noise_data.active_chains; | |
933 | else | |
934 | active_chains = priv->hw_params.valid_rx_ant; | |
935 | ||
936 | rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS; | |
c7de35cd RR |
937 | |
938 | /* How many receivers should we use? */ | |
28a6b07a TW |
939 | active_rx_cnt = iwl_get_active_rx_chain_count(priv); |
940 | idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt); | |
941 | ||
28a6b07a | 942 | |
04816448 GE |
943 | /* correct rx chain count according hw settings |
944 | * and chain noise calibration | |
945 | */ | |
946 | valid_rx_cnt = iwl_count_chain_bitmap(active_chains); | |
947 | if (valid_rx_cnt < active_rx_cnt) | |
948 | active_rx_cnt = valid_rx_cnt; | |
949 | ||
950 | if (valid_rx_cnt < idle_rx_cnt) | |
951 | idle_rx_cnt = valid_rx_cnt; | |
28a6b07a TW |
952 | |
953 | rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS; | |
954 | rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS; | |
955 | ||
7b841727 RF |
956 | /* copied from 'iwl_bg_request_scan()' */ |
957 | /* Force use of chains B and C (0x6) for Rx for 4965 | |
958 | * Avoid A (0x1) because of its off-channel reception on A-band. | |
959 | * MIMO is not used here, but value is required */ | |
960 | if (iwl_is_monitor_mode(priv) && | |
961 | !(priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) && | |
962 | ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965)) { | |
963 | rx_chain = 0x07 << RXON_RX_CHAIN_VALID_POS; | |
964 | rx_chain |= 0x06 << RXON_RX_CHAIN_FORCE_SEL_POS; | |
965 | rx_chain |= 0x07 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS; | |
966 | rx_chain |= 0x01 << RXON_RX_CHAIN_DRIVER_FORCE_POS; | |
967 | } | |
968 | ||
28a6b07a TW |
969 | priv->staging_rxon.rx_chain = cpu_to_le16(rx_chain); |
970 | ||
9e5e6c32 | 971 | if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam) |
c7de35cd RR |
972 | priv->staging_rxon.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK; |
973 | else | |
974 | priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK; | |
975 | ||
e1623446 | 976 | IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n", |
28a6b07a TW |
977 | priv->staging_rxon.rx_chain, |
978 | active_rx_cnt, idle_rx_cnt); | |
979 | ||
980 | WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 || | |
981 | active_rx_cnt < idle_rx_cnt); | |
c7de35cd RR |
982 | } |
983 | EXPORT_SYMBOL(iwl_set_rxon_chain); | |
bf85ea4f AK |
984 | |
985 | /** | |
17e72782 | 986 | * iwl_set_rxon_channel - Set the phymode and channel values in staging RXON |
bf85ea4f AK |
987 | * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz |
988 | * @channel: Any channel valid for the requested phymode | |
989 | ||
990 | * In addition to setting the staging RXON, priv->phymode is also set. | |
991 | * | |
992 | * NOTE: Does not commit to the hardware; it sets appropriate bit fields | |
993 | * in the staging RXON flag structure based on the phymode | |
994 | */ | |
17e72782 | 995 | int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch) |
bf85ea4f | 996 | { |
17e72782 TW |
997 | enum ieee80211_band band = ch->band; |
998 | u16 channel = ieee80211_frequency_to_channel(ch->center_freq); | |
999 | ||
8622e705 | 1000 | if (!iwl_get_channel_info(priv, band, channel)) { |
e1623446 | 1001 | IWL_DEBUG_INFO(priv, "Could not set channel to %d [%d]\n", |
bf85ea4f AK |
1002 | channel, band); |
1003 | return -EINVAL; | |
1004 | } | |
1005 | ||
1006 | if ((le16_to_cpu(priv->staging_rxon.channel) == channel) && | |
1007 | (priv->band == band)) | |
1008 | return 0; | |
1009 | ||
1010 | priv->staging_rxon.channel = cpu_to_le16(channel); | |
1011 | if (band == IEEE80211_BAND_5GHZ) | |
1012 | priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK; | |
1013 | else | |
1014 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
1015 | ||
1016 | priv->band = band; | |
1017 | ||
e1623446 | 1018 | IWL_DEBUG_INFO(priv, "Staging channel set to %d [%d]\n", channel, band); |
bf85ea4f AK |
1019 | |
1020 | return 0; | |
1021 | } | |
c7de35cd | 1022 | EXPORT_SYMBOL(iwl_set_rxon_channel); |
bf85ea4f | 1023 | |
8ccde88a SO |
1024 | void iwl_set_flags_for_band(struct iwl_priv *priv, |
1025 | enum ieee80211_band band) | |
1026 | { | |
1027 | if (band == IEEE80211_BAND_5GHZ) { | |
1028 | priv->staging_rxon.flags &= | |
1029 | ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | |
1030 | | RXON_FLG_CCK_MSK); | |
1031 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
1032 | } else { | |
1033 | /* Copied from iwl_post_associate() */ | |
1034 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
1035 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; | |
1036 | else | |
1037 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
1038 | ||
1039 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) | |
1040 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; | |
1041 | ||
1042 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
1043 | priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK; | |
1044 | priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK; | |
1045 | } | |
1046 | } | |
1047 | EXPORT_SYMBOL(iwl_set_flags_for_band); | |
1048 | ||
1049 | /* | |
1050 | * initialize rxon structure with default values from eeprom | |
1051 | */ | |
1052 | void iwl_connection_init_rx_config(struct iwl_priv *priv, int mode) | |
1053 | { | |
1054 | const struct iwl_channel_info *ch_info; | |
1055 | ||
1056 | memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); | |
1057 | ||
1058 | switch (mode) { | |
1059 | case NL80211_IFTYPE_AP: | |
1060 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP; | |
1061 | break; | |
1062 | ||
1063 | case NL80211_IFTYPE_STATION: | |
1064 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS; | |
1065 | priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK; | |
1066 | break; | |
1067 | ||
1068 | case NL80211_IFTYPE_ADHOC: | |
1069 | priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS; | |
1070 | priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK; | |
1071 | priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK | | |
1072 | RXON_FILTER_ACCEPT_GRP_MSK; | |
1073 | break; | |
1074 | ||
8ccde88a SO |
1075 | default: |
1076 | IWL_ERR(priv, "Unsupported interface type %d\n", mode); | |
1077 | break; | |
1078 | } | |
1079 | ||
1080 | #if 0 | |
1081 | /* TODO: Figure out when short_preamble would be set and cache from | |
1082 | * that */ | |
1083 | if (!hw_to_local(priv->hw)->short_preamble) | |
1084 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
1085 | else | |
1086 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
1087 | #endif | |
1088 | ||
1089 | ch_info = iwl_get_channel_info(priv, priv->band, | |
1090 | le16_to_cpu(priv->active_rxon.channel)); | |
1091 | ||
1092 | if (!ch_info) | |
1093 | ch_info = &priv->channel_info[0]; | |
1094 | ||
1095 | /* | |
1096 | * in some case A channels are all non IBSS | |
1097 | * in this case force B/G channel | |
1098 | */ | |
1099 | if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) && | |
1100 | !(is_channel_ibss(ch_info))) | |
1101 | ch_info = &priv->channel_info[0]; | |
1102 | ||
1103 | priv->staging_rxon.channel = cpu_to_le16(ch_info->channel); | |
1104 | priv->band = ch_info->band; | |
1105 | ||
1106 | iwl_set_flags_for_band(priv, priv->band); | |
1107 | ||
1108 | priv->staging_rxon.ofdm_basic_rates = | |
1109 | (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
1110 | priv->staging_rxon.cck_basic_rates = | |
1111 | (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
1112 | ||
1113 | priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK | | |
1114 | RXON_FLG_CHANNEL_MODE_PURE_40_MSK); | |
1115 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); | |
1116 | memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN); | |
1117 | priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff; | |
1118 | priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff; | |
11397a65 | 1119 | priv->staging_rxon.ofdm_ht_triple_stream_basic_rates = 0xff; |
8ccde88a SO |
1120 | } |
1121 | EXPORT_SYMBOL(iwl_connection_init_rx_config); | |
1122 | ||
1123 | void iwl_set_rate(struct iwl_priv *priv) | |
1124 | { | |
1125 | const struct ieee80211_supported_band *hw = NULL; | |
1126 | struct ieee80211_rate *rate; | |
1127 | int i; | |
1128 | ||
1129 | hw = iwl_get_hw_mode(priv, priv->band); | |
1130 | if (!hw) { | |
1131 | IWL_ERR(priv, "Failed to set rate: unable to get hw mode\n"); | |
1132 | return; | |
1133 | } | |
1134 | ||
1135 | priv->active_rate = 0; | |
1136 | priv->active_rate_basic = 0; | |
1137 | ||
1138 | for (i = 0; i < hw->n_bitrates; i++) { | |
1139 | rate = &(hw->bitrates[i]); | |
1140 | if (rate->hw_value < IWL_RATE_COUNT) | |
1141 | priv->active_rate |= (1 << rate->hw_value); | |
1142 | } | |
1143 | ||
e1623446 | 1144 | IWL_DEBUG_RATE(priv, "Set active_rate = %0x, active_rate_basic = %0x\n", |
8ccde88a SO |
1145 | priv->active_rate, priv->active_rate_basic); |
1146 | ||
1147 | /* | |
1148 | * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK) | |
1149 | * otherwise set it to the default of all CCK rates and 6, 12, 24 for | |
1150 | * OFDM | |
1151 | */ | |
1152 | if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK) | |
1153 | priv->staging_rxon.cck_basic_rates = | |
1154 | ((priv->active_rate_basic & | |
1155 | IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF; | |
1156 | else | |
1157 | priv->staging_rxon.cck_basic_rates = | |
1158 | (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF; | |
1159 | ||
1160 | if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK) | |
1161 | priv->staging_rxon.ofdm_basic_rates = | |
1162 | ((priv->active_rate_basic & | |
1163 | (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >> | |
1164 | IWL_FIRST_OFDM_RATE) & 0xFF; | |
1165 | else | |
1166 | priv->staging_rxon.ofdm_basic_rates = | |
1167 | (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF; | |
1168 | } | |
1169 | EXPORT_SYMBOL(iwl_set_rate); | |
1170 | ||
1171 | void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) | |
1172 | { | |
1173 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; | |
1174 | struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon; | |
1175 | struct iwl_csa_notification *csa = &(pkt->u.csa_notif); | |
e1623446 | 1176 | IWL_DEBUG_11H(priv, "CSA notif: channel %d, status %d\n", |
8ccde88a SO |
1177 | le16_to_cpu(csa->channel), le32_to_cpu(csa->status)); |
1178 | rxon->channel = csa->channel; | |
1179 | priv->staging_rxon.channel = csa->channel; | |
1180 | } | |
1181 | EXPORT_SYMBOL(iwl_rx_csa); | |
1182 | ||
1183 | #ifdef CONFIG_IWLWIFI_DEBUG | |
1184 | static void iwl_print_rx_config_cmd(struct iwl_priv *priv) | |
1185 | { | |
1186 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; | |
1187 | ||
e1623446 | 1188 | IWL_DEBUG_RADIO(priv, "RX CONFIG:\n"); |
8ccde88a | 1189 | iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon)); |
e1623446 TW |
1190 | IWL_DEBUG_RADIO(priv, "u16 channel: 0x%x\n", le16_to_cpu(rxon->channel)); |
1191 | IWL_DEBUG_RADIO(priv, "u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags)); | |
1192 | IWL_DEBUG_RADIO(priv, "u32 filter_flags: 0x%08x\n", | |
8ccde88a | 1193 | le32_to_cpu(rxon->filter_flags)); |
e1623446 TW |
1194 | IWL_DEBUG_RADIO(priv, "u8 dev_type: 0x%x\n", rxon->dev_type); |
1195 | IWL_DEBUG_RADIO(priv, "u8 ofdm_basic_rates: 0x%02x\n", | |
8ccde88a | 1196 | rxon->ofdm_basic_rates); |
e1623446 TW |
1197 | IWL_DEBUG_RADIO(priv, "u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates); |
1198 | IWL_DEBUG_RADIO(priv, "u8[6] node_addr: %pM\n", rxon->node_addr); | |
1199 | IWL_DEBUG_RADIO(priv, "u8[6] bssid_addr: %pM\n", rxon->bssid_addr); | |
1200 | IWL_DEBUG_RADIO(priv, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id)); | |
8ccde88a SO |
1201 | } |
1202 | #endif | |
1203 | ||
1204 | /** | |
1205 | * iwl_irq_handle_error - called for HW or SW error interrupt from card | |
1206 | */ | |
1207 | void iwl_irq_handle_error(struct iwl_priv *priv) | |
1208 | { | |
1209 | /* Set the FW error flag -- cleared on iwl_down */ | |
1210 | set_bit(STATUS_FW_ERROR, &priv->status); | |
1211 | ||
1212 | /* Cancel currently queued command. */ | |
1213 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
1214 | ||
1215 | #ifdef CONFIG_IWLWIFI_DEBUG | |
1216 | if (priv->debug_level & IWL_DL_FW_ERRORS) { | |
1217 | iwl_dump_nic_error_log(priv); | |
1218 | iwl_dump_nic_event_log(priv); | |
1219 | iwl_print_rx_config_cmd(priv); | |
1220 | } | |
1221 | #endif | |
1222 | ||
1223 | wake_up_interruptible(&priv->wait_command_queue); | |
1224 | ||
1225 | /* Keep the restart process from trying to send host | |
1226 | * commands by clearing the INIT status bit */ | |
1227 | clear_bit(STATUS_READY, &priv->status); | |
1228 | ||
1229 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
e1623446 | 1230 | IWL_DEBUG(priv, IWL_DL_FW_ERRORS, |
8ccde88a SO |
1231 | "Restarting adapter due to uCode error.\n"); |
1232 | ||
1233 | if (iwl_is_associated(priv)) { | |
1234 | memcpy(&priv->recovery_rxon, &priv->active_rxon, | |
1235 | sizeof(priv->recovery_rxon)); | |
1236 | priv->error_recovering = 1; | |
1237 | } | |
1238 | if (priv->cfg->mod_params->restart_fw) | |
1239 | queue_work(priv->workqueue, &priv->restart); | |
1240 | } | |
1241 | } | |
1242 | EXPORT_SYMBOL(iwl_irq_handle_error); | |
1243 | ||
1244 | void iwl_configure_filter(struct ieee80211_hw *hw, | |
1245 | unsigned int changed_flags, | |
1246 | unsigned int *total_flags, | |
1247 | int mc_count, struct dev_addr_list *mc_list) | |
1248 | { | |
1249 | struct iwl_priv *priv = hw->priv; | |
1250 | __le32 *filter_flags = &priv->staging_rxon.filter_flags; | |
1251 | ||
e1623446 | 1252 | IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", |
8ccde88a SO |
1253 | changed_flags, *total_flags); |
1254 | ||
1255 | if (changed_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) { | |
1256 | if (*total_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) | |
1257 | *filter_flags |= RXON_FILTER_PROMISC_MSK; | |
1258 | else | |
1259 | *filter_flags &= ~RXON_FILTER_PROMISC_MSK; | |
1260 | } | |
1261 | if (changed_flags & FIF_ALLMULTI) { | |
1262 | if (*total_flags & FIF_ALLMULTI) | |
1263 | *filter_flags |= RXON_FILTER_ACCEPT_GRP_MSK; | |
1264 | else | |
1265 | *filter_flags &= ~RXON_FILTER_ACCEPT_GRP_MSK; | |
1266 | } | |
1267 | if (changed_flags & FIF_CONTROL) { | |
1268 | if (*total_flags & FIF_CONTROL) | |
1269 | *filter_flags |= RXON_FILTER_CTL2HOST_MSK; | |
1270 | else | |
1271 | *filter_flags &= ~RXON_FILTER_CTL2HOST_MSK; | |
1272 | } | |
1273 | if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { | |
1274 | if (*total_flags & FIF_BCN_PRBRESP_PROMISC) | |
1275 | *filter_flags |= RXON_FILTER_BCON_AWARE_MSK; | |
1276 | else | |
1277 | *filter_flags &= ~RXON_FILTER_BCON_AWARE_MSK; | |
1278 | } | |
1279 | ||
1280 | /* We avoid iwl_commit_rxon here to commit the new filter flags | |
1281 | * since mac80211 will call ieee80211_hw_config immediately. | |
1282 | * (mc_list is not supported at this time). Otherwise, we need to | |
1283 | * queue a background iwl_commit_rxon work. | |
1284 | */ | |
1285 | ||
1286 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | | |
1287 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; | |
1288 | } | |
1289 | EXPORT_SYMBOL(iwl_configure_filter); | |
1290 | ||
6ba87956 | 1291 | int iwl_setup_mac(struct iwl_priv *priv) |
bf85ea4f | 1292 | { |
6ba87956 | 1293 | int ret; |
bf85ea4f | 1294 | struct ieee80211_hw *hw = priv->hw; |
e227ceac | 1295 | hw->rate_control_algorithm = "iwl-agn-rs"; |
bf85ea4f | 1296 | |
566bfe5a | 1297 | /* Tell mac80211 our characteristics */ |
605a0bd6 | 1298 | hw->flags = IEEE80211_HW_SIGNAL_DBM | |
8b30b1fe | 1299 | IEEE80211_HW_NOISE_DBM | |
4be8c387 | 1300 | IEEE80211_HW_AMPDU_AGGREGATION | |
286d9490 | 1301 | IEEE80211_HW_SPECTRUM_MGMT; |
f59ac048 | 1302 | hw->wiphy->interface_modes = |
f59ac048 LR |
1303 | BIT(NL80211_IFTYPE_STATION) | |
1304 | BIT(NL80211_IFTYPE_ADHOC); | |
ea4a82dc | 1305 | |
2a44f911 | 1306 | hw->wiphy->custom_regulatory = true; |
1ecf9fc1 JB |
1307 | |
1308 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; | |
1309 | /* we create the 802.11 header and a zero-length SSID element */ | |
1310 | hw->wiphy->max_scan_ie_len = IWL_MAX_PROBE_REQUEST - 24 - 2; | |
ea4a82dc | 1311 | |
bf85ea4f AK |
1312 | /* Default value; 4 EDCA QOS priorities */ |
1313 | hw->queues = 4; | |
6ba87956 | 1314 | |
b5d7be5e | 1315 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
6ba87956 TW |
1316 | |
1317 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) | |
1318 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
1319 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
1320 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) | |
1321 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
1322 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
1323 | ||
1324 | ret = ieee80211_register_hw(priv->hw); | |
1325 | if (ret) { | |
15b1687c | 1326 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); |
6ba87956 TW |
1327 | return ret; |
1328 | } | |
1329 | priv->mac80211_registered = 1; | |
1330 | ||
1331 | return 0; | |
bf85ea4f | 1332 | } |
6ba87956 | 1333 | EXPORT_SYMBOL(iwl_setup_mac); |
bf85ea4f | 1334 | |
da154e30 RR |
1335 | int iwl_set_hw_params(struct iwl_priv *priv) |
1336 | { | |
1337 | priv->hw_params.sw_crypto = priv->cfg->mod_params->sw_crypto; | |
1338 | priv->hw_params.max_rxq_size = RX_QUEUE_SIZE; | |
1339 | priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; | |
1340 | if (priv->cfg->mod_params->amsdu_size_8K) | |
1341 | priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_8K; | |
1342 | else | |
1343 | priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K; | |
1344 | priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256; | |
1345 | ||
49779293 RR |
1346 | if (priv->cfg->mod_params->disable_11n) |
1347 | priv->cfg->sku &= ~IWL_SKU_N; | |
1348 | ||
da154e30 RR |
1349 | /* Device-specific setup */ |
1350 | return priv->cfg->ops->lib->set_hw_params(priv); | |
1351 | } | |
1352 | EXPORT_SYMBOL(iwl_set_hw_params); | |
6ba87956 TW |
1353 | |
1354 | int iwl_init_drv(struct iwl_priv *priv) | |
c7de35cd RR |
1355 | { |
1356 | int ret; | |
c7de35cd | 1357 | |
c7de35cd RR |
1358 | priv->ibss_beacon = NULL; |
1359 | ||
1360 | spin_lock_init(&priv->lock); | |
1361 | spin_lock_init(&priv->power_data.lock); | |
1362 | spin_lock_init(&priv->sta_lock); | |
1363 | spin_lock_init(&priv->hcmd_lock); | |
c7de35cd | 1364 | |
c7de35cd RR |
1365 | INIT_LIST_HEAD(&priv->free_frames); |
1366 | ||
1367 | mutex_init(&priv->mutex); | |
1368 | ||
1369 | /* Clear the driver's (not device's) station table */ | |
e11bc028 | 1370 | priv->cfg->ops->smgmt->clear_station_table(priv); |
c7de35cd RR |
1371 | |
1372 | priv->data_retry_limit = -1; | |
1373 | priv->ieee_channels = NULL; | |
1374 | priv->ieee_rates = NULL; | |
1375 | priv->band = IEEE80211_BAND_2GHZ; | |
1376 | ||
05c914fe | 1377 | priv->iw_mode = NL80211_IFTYPE_STATION; |
c7de35cd | 1378 | |
12837be1 | 1379 | priv->current_ht_config.sm_ps = WLAN_HT_CAP_SM_PS_DISABLED; |
c7de35cd RR |
1380 | |
1381 | /* Choose which receivers/antennas to use */ | |
45823531 AK |
1382 | if (priv->cfg->ops->hcmd->set_rxon_chain) |
1383 | priv->cfg->ops->hcmd->set_rxon_chain(priv); | |
1384 | ||
f53696de | 1385 | iwl_init_scan_params(priv); |
c7de35cd RR |
1386 | |
1387 | iwl_reset_qos(priv); | |
1388 | ||
1389 | priv->qos_data.qos_active = 0; | |
1390 | priv->qos_data.qos_cap.val = 0; | |
1391 | ||
c7de35cd | 1392 | priv->rates_mask = IWL_RATES_MASK; |
d25aabb0 WT |
1393 | /* If power management is turned on, default to CAM mode */ |
1394 | priv->power_mode = IWL_POWER_MODE_CAM; | |
630fe9b6 | 1395 | priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MAX; |
c7de35cd RR |
1396 | |
1397 | ret = iwl_init_channel_map(priv); | |
1398 | if (ret) { | |
15b1687c | 1399 | IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); |
c7de35cd RR |
1400 | goto err; |
1401 | } | |
1402 | ||
1403 | ret = iwlcore_init_geos(priv); | |
1404 | if (ret) { | |
15b1687c | 1405 | IWL_ERR(priv, "initializing geos failed: %d\n", ret); |
c7de35cd RR |
1406 | goto err_free_channel_map; |
1407 | } | |
534166de | 1408 | iwlcore_init_hw_rates(priv, priv->ieee_rates); |
c7de35cd | 1409 | |
c7de35cd RR |
1410 | return 0; |
1411 | ||
c7de35cd RR |
1412 | err_free_channel_map: |
1413 | iwl_free_channel_map(priv); | |
1414 | err: | |
1415 | return ret; | |
1416 | } | |
6ba87956 | 1417 | EXPORT_SYMBOL(iwl_init_drv); |
c7de35cd | 1418 | |
630fe9b6 TW |
1419 | int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force) |
1420 | { | |
1421 | int ret = 0; | |
1422 | if (tx_power < IWL_TX_POWER_TARGET_POWER_MIN) { | |
daf518de WF |
1423 | IWL_WARN(priv, "Requested user TXPOWER %d below lower limit %d.\n", |
1424 | tx_power, | |
1425 | IWL_TX_POWER_TARGET_POWER_MIN); | |
630fe9b6 TW |
1426 | return -EINVAL; |
1427 | } | |
1428 | ||
1429 | if (tx_power > IWL_TX_POWER_TARGET_POWER_MAX) { | |
daf518de WF |
1430 | IWL_WARN(priv, "Requested user TXPOWER %d above upper limit %d.\n", |
1431 | tx_power, | |
1432 | IWL_TX_POWER_TARGET_POWER_MAX); | |
630fe9b6 TW |
1433 | return -EINVAL; |
1434 | } | |
1435 | ||
1436 | if (priv->tx_power_user_lmt != tx_power) | |
1437 | force = true; | |
1438 | ||
1439 | priv->tx_power_user_lmt = tx_power; | |
1440 | ||
019fb97d MA |
1441 | /* if nic is not up don't send command */ |
1442 | if (!iwl_is_ready_rf(priv)) | |
1443 | return ret; | |
1444 | ||
630fe9b6 TW |
1445 | if (force && priv->cfg->ops->lib->send_tx_power) |
1446 | ret = priv->cfg->ops->lib->send_tx_power(priv); | |
1447 | ||
1448 | return ret; | |
1449 | } | |
1450 | EXPORT_SYMBOL(iwl_set_tx_power); | |
1451 | ||
6ba87956 | 1452 | void iwl_uninit_drv(struct iwl_priv *priv) |
bf85ea4f | 1453 | { |
6e21f2c1 | 1454 | iwl_calib_free_results(priv); |
6ba87956 TW |
1455 | iwlcore_free_geos(priv); |
1456 | iwl_free_channel_map(priv); | |
261415f7 | 1457 | kfree(priv->scan); |
bf85ea4f | 1458 | } |
6ba87956 | 1459 | EXPORT_SYMBOL(iwl_uninit_drv); |
bf85ea4f | 1460 | |
0ad91a35 WT |
1461 | |
1462 | void iwl_disable_interrupts(struct iwl_priv *priv) | |
1463 | { | |
1464 | clear_bit(STATUS_INT_ENABLED, &priv->status); | |
1465 | ||
1466 | /* disable interrupts from uCode/NIC to host */ | |
1467 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); | |
1468 | ||
1469 | /* acknowledge/clear/reset any interrupts still pending | |
1470 | * from uCode or flow handler (Rx/Tx DMA) */ | |
1471 | iwl_write32(priv, CSR_INT, 0xffffffff); | |
1472 | iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff); | |
e1623446 | 1473 | IWL_DEBUG_ISR(priv, "Disabled interrupts\n"); |
0ad91a35 WT |
1474 | } |
1475 | EXPORT_SYMBOL(iwl_disable_interrupts); | |
1476 | ||
1477 | void iwl_enable_interrupts(struct iwl_priv *priv) | |
1478 | { | |
e1623446 | 1479 | IWL_DEBUG_ISR(priv, "Enabling interrupts\n"); |
0ad91a35 WT |
1480 | set_bit(STATUS_INT_ENABLED, &priv->status); |
1481 | iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK); | |
1482 | } | |
1483 | EXPORT_SYMBOL(iwl_enable_interrupts); | |
1484 | ||
f17d08a6 AK |
1485 | irqreturn_t iwl_isr(int irq, void *data) |
1486 | { | |
1487 | struct iwl_priv *priv = data; | |
1488 | u32 inta, inta_mask; | |
1489 | u32 inta_fh; | |
1490 | if (!priv) | |
1491 | return IRQ_NONE; | |
1492 | ||
1493 | spin_lock(&priv->lock); | |
1494 | ||
1495 | /* Disable (but don't clear!) interrupts here to avoid | |
1496 | * back-to-back ISRs and sporadic interrupts from our NIC. | |
1497 | * If we have something to service, the tasklet will re-enable ints. | |
1498 | * If we *don't* have something, we'll re-enable before leaving here. */ | |
1499 | inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */ | |
1500 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); | |
1501 | ||
1502 | /* Discover which interrupts are active/pending */ | |
1503 | inta = iwl_read32(priv, CSR_INT); | |
1504 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
1505 | ||
1506 | /* Ignore interrupt if there's nothing in NIC to service. | |
1507 | * This may be due to IRQ shared with another device, | |
1508 | * or due to sporadic interrupts thrown from our NIC. */ | |
1509 | if (!inta && !inta_fh) { | |
1510 | IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0, inta_fh == 0\n"); | |
1511 | goto none; | |
1512 | } | |
1513 | ||
1514 | if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { | |
1515 | /* Hardware disappeared. It might have already raised | |
1516 | * an interrupt */ | |
1517 | IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta); | |
1518 | goto unplugged; | |
1519 | } | |
1520 | ||
1521 | IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", | |
1522 | inta, inta_mask, inta_fh); | |
1523 | ||
1524 | inta &= ~CSR_INT_BIT_SCD; | |
1525 | ||
1526 | /* iwl_irq_tasklet() will service interrupts and re-enable them */ | |
1527 | if (likely(inta || inta_fh)) | |
1528 | tasklet_schedule(&priv->irq_tasklet); | |
1529 | ||
1530 | unplugged: | |
1531 | spin_unlock(&priv->lock); | |
1532 | return IRQ_HANDLED; | |
1533 | ||
1534 | none: | |
1535 | /* re-enable interrupts here since we don't have anything to service. */ | |
1536 | /* only Re-enable if diabled by irq */ | |
1537 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
1538 | iwl_enable_interrupts(priv); | |
1539 | spin_unlock(&priv->lock); | |
1540 | return IRQ_NONE; | |
1541 | } | |
1542 | EXPORT_SYMBOL(iwl_isr); | |
1543 | ||
17f841cd SO |
1544 | int iwl_send_bt_config(struct iwl_priv *priv) |
1545 | { | |
1546 | struct iwl_bt_cmd bt_cmd = { | |
1547 | .flags = 3, | |
1548 | .lead_time = 0xAA, | |
1549 | .max_kill = 1, | |
1550 | .kill_ack_mask = 0, | |
1551 | .kill_cts_mask = 0, | |
1552 | }; | |
1553 | ||
1554 | return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG, | |
1555 | sizeof(struct iwl_bt_cmd), &bt_cmd); | |
1556 | } | |
1557 | EXPORT_SYMBOL(iwl_send_bt_config); | |
1558 | ||
49ea8596 EG |
1559 | int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags) |
1560 | { | |
1561 | u32 stat_flags = 0; | |
1562 | struct iwl_host_cmd cmd = { | |
1563 | .id = REPLY_STATISTICS_CMD, | |
1564 | .meta.flags = flags, | |
1565 | .len = sizeof(stat_flags), | |
1566 | .data = (u8 *) &stat_flags, | |
1567 | }; | |
1568 | return iwl_send_cmd(priv, &cmd); | |
1569 | } | |
1570 | EXPORT_SYMBOL(iwl_send_statistics_request); | |
7e8c519e | 1571 | |
b0692f2f EG |
1572 | /** |
1573 | * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host, | |
1574 | * using sample data 100 bytes apart. If these sample points are good, | |
1575 | * it's a pretty good bet that everything between them is good, too. | |
1576 | */ | |
1577 | static int iwlcore_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len) | |
1578 | { | |
1579 | u32 val; | |
1580 | int ret = 0; | |
1581 | u32 errcnt = 0; | |
1582 | u32 i; | |
1583 | ||
e1623446 | 1584 | IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); |
b0692f2f EG |
1585 | |
1586 | ret = iwl_grab_nic_access(priv); | |
1587 | if (ret) | |
1588 | return ret; | |
1589 | ||
1590 | for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { | |
1591 | /* read data comes through single port, auto-incr addr */ | |
1592 | /* NOTE: Use the debugless read so we don't flood kernel log | |
1593 | * if IWL_DL_IO is set */ | |
1594 | iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, | |
250bdd21 | 1595 | i + IWL49_RTC_INST_LOWER_BOUND); |
b0692f2f EG |
1596 | val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
1597 | if (val != le32_to_cpu(*image)) { | |
1598 | ret = -EIO; | |
1599 | errcnt++; | |
1600 | if (errcnt >= 3) | |
1601 | break; | |
1602 | } | |
1603 | } | |
1604 | ||
1605 | iwl_release_nic_access(priv); | |
1606 | ||
1607 | return ret; | |
1608 | } | |
1609 | ||
1610 | /** | |
1611 | * iwlcore_verify_inst_full - verify runtime uCode image in card vs. host, | |
1612 | * looking at all data. | |
1613 | */ | |
1614 | static int iwl_verify_inst_full(struct iwl_priv *priv, __le32 *image, | |
1615 | u32 len) | |
1616 | { | |
1617 | u32 val; | |
1618 | u32 save_len = len; | |
1619 | int ret = 0; | |
1620 | u32 errcnt; | |
1621 | ||
e1623446 | 1622 | IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); |
b0692f2f EG |
1623 | |
1624 | ret = iwl_grab_nic_access(priv); | |
1625 | if (ret) | |
1626 | return ret; | |
1627 | ||
250bdd21 SO |
1628 | iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
1629 | IWL49_RTC_INST_LOWER_BOUND); | |
b0692f2f EG |
1630 | |
1631 | errcnt = 0; | |
1632 | for (; len > 0; len -= sizeof(u32), image++) { | |
1633 | /* read data comes through single port, auto-incr addr */ | |
1634 | /* NOTE: Use the debugless read so we don't flood kernel log | |
1635 | * if IWL_DL_IO is set */ | |
1636 | val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); | |
1637 | if (val != le32_to_cpu(*image)) { | |
15b1687c | 1638 | IWL_ERR(priv, "uCode INST section is invalid at " |
b0692f2f EG |
1639 | "offset 0x%x, is 0x%x, s/b 0x%x\n", |
1640 | save_len - len, val, le32_to_cpu(*image)); | |
1641 | ret = -EIO; | |
1642 | errcnt++; | |
1643 | if (errcnt >= 20) | |
1644 | break; | |
1645 | } | |
1646 | } | |
1647 | ||
1648 | iwl_release_nic_access(priv); | |
1649 | ||
1650 | if (!errcnt) | |
e1623446 TW |
1651 | IWL_DEBUG_INFO(priv, |
1652 | "ucode image in INSTRUCTION memory is good\n"); | |
b0692f2f EG |
1653 | |
1654 | return ret; | |
1655 | } | |
1656 | ||
1657 | /** | |
1658 | * iwl_verify_ucode - determine which instruction image is in SRAM, | |
1659 | * and verify its contents | |
1660 | */ | |
1661 | int iwl_verify_ucode(struct iwl_priv *priv) | |
1662 | { | |
1663 | __le32 *image; | |
1664 | u32 len; | |
1665 | int ret; | |
1666 | ||
1667 | /* Try bootstrap */ | |
1668 | image = (__le32 *)priv->ucode_boot.v_addr; | |
1669 | len = priv->ucode_boot.len; | |
1670 | ret = iwlcore_verify_inst_sparse(priv, image, len); | |
1671 | if (!ret) { | |
e1623446 | 1672 | IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n"); |
b0692f2f EG |
1673 | return 0; |
1674 | } | |
1675 | ||
1676 | /* Try initialize */ | |
1677 | image = (__le32 *)priv->ucode_init.v_addr; | |
1678 | len = priv->ucode_init.len; | |
1679 | ret = iwlcore_verify_inst_sparse(priv, image, len); | |
1680 | if (!ret) { | |
e1623446 | 1681 | IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n"); |
b0692f2f EG |
1682 | return 0; |
1683 | } | |
1684 | ||
1685 | /* Try runtime/protocol */ | |
1686 | image = (__le32 *)priv->ucode_code.v_addr; | |
1687 | len = priv->ucode_code.len; | |
1688 | ret = iwlcore_verify_inst_sparse(priv, image, len); | |
1689 | if (!ret) { | |
e1623446 | 1690 | IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n"); |
b0692f2f EG |
1691 | return 0; |
1692 | } | |
1693 | ||
15b1687c | 1694 | IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); |
b0692f2f EG |
1695 | |
1696 | /* Since nothing seems to match, show first several data entries in | |
1697 | * instruction SRAM, so maybe visual inspection will give a clue. | |
1698 | * Selection of bootstrap image (vs. other images) is arbitrary. */ | |
1699 | image = (__le32 *)priv->ucode_boot.v_addr; | |
1700 | len = priv->ucode_boot.len; | |
1701 | ret = iwl_verify_inst_full(priv, image, len); | |
1702 | ||
1703 | return ret; | |
1704 | } | |
1705 | EXPORT_SYMBOL(iwl_verify_ucode); | |
1706 | ||
56e12615 JS |
1707 | |
1708 | static const char *desc_lookup_text[] = { | |
1709 | "OK", | |
1710 | "FAIL", | |
1711 | "BAD_PARAM", | |
1712 | "BAD_CHECKSUM", | |
1713 | "NMI_INTERRUPT_WDG", | |
1714 | "SYSASSERT", | |
1715 | "FATAL_ERROR", | |
1716 | "BAD_COMMAND", | |
1717 | "HW_ERROR_TUNE_LOCK", | |
1718 | "HW_ERROR_TEMPERATURE", | |
1719 | "ILLEGAL_CHAN_FREQ", | |
1720 | "VCC_NOT_STABLE", | |
1721 | "FH_ERROR", | |
1722 | "NMI_INTERRUPT_HOST", | |
1723 | "NMI_INTERRUPT_ACTION_PT", | |
1724 | "NMI_INTERRUPT_UNKNOWN", | |
1725 | "UCODE_VERSION_MISMATCH", | |
1726 | "HW_ERROR_ABS_LOCK", | |
1727 | "HW_ERROR_CAL_LOCK_FAIL", | |
1728 | "NMI_INTERRUPT_INST_ACTION_PT", | |
1729 | "NMI_INTERRUPT_DATA_ACTION_PT", | |
1730 | "NMI_TRM_HW_ER", | |
1731 | "NMI_INTERRUPT_TRM", | |
1732 | "NMI_INTERRUPT_BREAK_POINT" | |
1733 | "DEBUG_0", | |
1734 | "DEBUG_1", | |
1735 | "DEBUG_2", | |
1736 | "DEBUG_3", | |
1737 | "UNKNOWN" | |
1738 | }; | |
1739 | ||
ede0cba4 EK |
1740 | static const char *desc_lookup(int i) |
1741 | { | |
56e12615 JS |
1742 | int max = ARRAY_SIZE(desc_lookup_text) - 1; |
1743 | ||
1744 | if (i < 0 || i > max) | |
1745 | i = max; | |
ede0cba4 | 1746 | |
56e12615 | 1747 | return desc_lookup_text[i]; |
ede0cba4 EK |
1748 | } |
1749 | ||
1750 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
1751 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
1752 | ||
1753 | void iwl_dump_nic_error_log(struct iwl_priv *priv) | |
1754 | { | |
1755 | u32 data2, line; | |
1756 | u32 desc, time, count, base, data1; | |
1757 | u32 blink1, blink2, ilink1, ilink2; | |
e1dfc085 | 1758 | int ret; |
ede0cba4 | 1759 | |
e1dfc085 GG |
1760 | if (priv->ucode_type == UCODE_INIT) |
1761 | base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr); | |
1762 | else | |
1763 | base = le32_to_cpu(priv->card_alive.error_event_table_ptr); | |
ede0cba4 EK |
1764 | |
1765 | if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { | |
15b1687c | 1766 | IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base); |
ede0cba4 EK |
1767 | return; |
1768 | } | |
1769 | ||
e1dfc085 GG |
1770 | ret = iwl_grab_nic_access(priv); |
1771 | if (ret) { | |
39aadf8c | 1772 | IWL_WARN(priv, "Can not read from adapter at this time.\n"); |
ede0cba4 EK |
1773 | return; |
1774 | } | |
1775 | ||
1776 | count = iwl_read_targ_mem(priv, base); | |
1777 | ||
1778 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { | |
15b1687c WT |
1779 | IWL_ERR(priv, "Start IWL Error Log Dump:\n"); |
1780 | IWL_ERR(priv, "Status: 0x%08lX, count: %d\n", | |
1781 | priv->status, count); | |
ede0cba4 EK |
1782 | } |
1783 | ||
1784 | desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32)); | |
1785 | blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32)); | |
1786 | blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32)); | |
1787 | ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32)); | |
1788 | ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32)); | |
1789 | data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32)); | |
1790 | data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32)); | |
1791 | line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32)); | |
1792 | time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32)); | |
1793 | ||
15b1687c | 1794 | IWL_ERR(priv, "Desc Time " |
ede0cba4 | 1795 | "data1 data2 line\n"); |
15b1687c | 1796 | IWL_ERR(priv, "%-28s (#%02d) %010u 0x%08X 0x%08X %u\n", |
ede0cba4 | 1797 | desc_lookup(desc), desc, time, data1, data2, line); |
15b1687c WT |
1798 | IWL_ERR(priv, "blink1 blink2 ilink1 ilink2\n"); |
1799 | IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2, | |
ede0cba4 EK |
1800 | ilink1, ilink2); |
1801 | ||
1802 | iwl_release_nic_access(priv); | |
1803 | } | |
1804 | EXPORT_SYMBOL(iwl_dump_nic_error_log); | |
1805 | ||
189a2b59 EK |
1806 | #define EVENT_START_OFFSET (4 * sizeof(u32)) |
1807 | ||
1808 | /** | |
1809 | * iwl_print_event_log - Dump error event log to syslog | |
1810 | * | |
a33c2f47 | 1811 | * NOTE: Must be called with iwl_grab_nic_access() already obtained! |
189a2b59 | 1812 | */ |
a33c2f47 | 1813 | static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, |
189a2b59 EK |
1814 | u32 num_events, u32 mode) |
1815 | { | |
1816 | u32 i; | |
1817 | u32 base; /* SRAM byte address of event log header */ | |
1818 | u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ | |
1819 | u32 ptr; /* SRAM byte address of log data */ | |
1820 | u32 ev, time, data; /* event log data */ | |
1821 | ||
1822 | if (num_events == 0) | |
1823 | return; | |
e1dfc085 GG |
1824 | if (priv->ucode_type == UCODE_INIT) |
1825 | base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); | |
1826 | else | |
1827 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
189a2b59 EK |
1828 | |
1829 | if (mode == 0) | |
1830 | event_size = 2 * sizeof(u32); | |
1831 | else | |
1832 | event_size = 3 * sizeof(u32); | |
1833 | ||
1834 | ptr = base + EVENT_START_OFFSET + (start_idx * event_size); | |
1835 | ||
1836 | /* "time" is actually "data" for mode 0 (no timestamp). | |
1837 | * place event id # at far right for easier visual parsing. */ | |
1838 | for (i = 0; i < num_events; i++) { | |
1839 | ev = iwl_read_targ_mem(priv, ptr); | |
1840 | ptr += sizeof(u32); | |
1841 | time = iwl_read_targ_mem(priv, ptr); | |
1842 | ptr += sizeof(u32); | |
77c5d08e TW |
1843 | if (mode == 0) { |
1844 | /* data, ev */ | |
15b1687c | 1845 | IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", time, ev); |
77c5d08e | 1846 | } else { |
189a2b59 EK |
1847 | data = iwl_read_targ_mem(priv, ptr); |
1848 | ptr += sizeof(u32); | |
15b1687c | 1849 | IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n", |
77c5d08e | 1850 | time, data, ev); |
189a2b59 EK |
1851 | } |
1852 | } | |
1853 | } | |
189a2b59 EK |
1854 | |
1855 | void iwl_dump_nic_event_log(struct iwl_priv *priv) | |
1856 | { | |
e1dfc085 | 1857 | int ret; |
189a2b59 EK |
1858 | u32 base; /* SRAM byte address of event log header */ |
1859 | u32 capacity; /* event log capacity in # entries */ | |
1860 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
1861 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
1862 | u32 next_entry; /* index of next entry to be written by uCode */ | |
1863 | u32 size; /* # entries that we'll print */ | |
1864 | ||
e1dfc085 GG |
1865 | if (priv->ucode_type == UCODE_INIT) |
1866 | base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); | |
1867 | else | |
1868 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
1869 | ||
189a2b59 | 1870 | if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { |
15b1687c | 1871 | IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base); |
189a2b59 EK |
1872 | return; |
1873 | } | |
1874 | ||
e1dfc085 GG |
1875 | ret = iwl_grab_nic_access(priv); |
1876 | if (ret) { | |
39aadf8c | 1877 | IWL_WARN(priv, "Can not read from adapter at this time.\n"); |
189a2b59 EK |
1878 | return; |
1879 | } | |
1880 | ||
1881 | /* event log header */ | |
1882 | capacity = iwl_read_targ_mem(priv, base); | |
1883 | mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
1884 | num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
1885 | next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
1886 | ||
1887 | size = num_wraps ? capacity : next_entry; | |
1888 | ||
1889 | /* bail out if nothing in log */ | |
1890 | if (size == 0) { | |
15b1687c | 1891 | IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n"); |
189a2b59 EK |
1892 | iwl_release_nic_access(priv); |
1893 | return; | |
1894 | } | |
1895 | ||
15b1687c | 1896 | IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n", |
189a2b59 EK |
1897 | size, num_wraps); |
1898 | ||
1899 | /* if uCode has wrapped back to top of log, start at the oldest entry, | |
1900 | * i.e the next one that uCode would fill. */ | |
1901 | if (num_wraps) | |
1902 | iwl_print_event_log(priv, next_entry, | |
1903 | capacity - next_entry, mode); | |
1904 | /* (then/else) start at top of log */ | |
1905 | iwl_print_event_log(priv, 0, next_entry, mode); | |
1906 | ||
1907 | iwl_release_nic_access(priv); | |
1908 | } | |
1909 | EXPORT_SYMBOL(iwl_dump_nic_event_log); | |
1910 | ||
47f4a587 EG |
1911 | void iwl_rf_kill_ct_config(struct iwl_priv *priv) |
1912 | { | |
1913 | struct iwl_ct_kill_config cmd; | |
1914 | unsigned long flags; | |
1915 | int ret = 0; | |
1916 | ||
1917 | spin_lock_irqsave(&priv->lock, flags); | |
1918 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
1919 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); | |
1920 | spin_unlock_irqrestore(&priv->lock, flags); | |
1921 | ||
1922 | cmd.critical_temperature_R = | |
1923 | cpu_to_le32(priv->hw_params.ct_kill_threshold); | |
189a2b59 | 1924 | |
47f4a587 EG |
1925 | ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, |
1926 | sizeof(cmd), &cmd); | |
1927 | if (ret) | |
15b1687c | 1928 | IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); |
47f4a587 | 1929 | else |
e1623446 | 1930 | IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD succeeded, " |
47f4a587 EG |
1931 | "critical temperature is %d\n", |
1932 | cmd.critical_temperature_R); | |
1933 | } | |
1934 | EXPORT_SYMBOL(iwl_rf_kill_ct_config); | |
14a08a7f | 1935 | |
0ad91a35 | 1936 | |
14a08a7f EG |
1937 | /* |
1938 | * CARD_STATE_CMD | |
1939 | * | |
1940 | * Use: Sets the device's internal card state to enable, disable, or halt | |
1941 | * | |
1942 | * When in the 'enable' state the card operates as normal. | |
1943 | * When in the 'disable' state, the card enters into a low power mode. | |
1944 | * When in the 'halt' state, the card is shut down and must be fully | |
1945 | * restarted to come back on. | |
1946 | */ | |
c496294e | 1947 | int iwl_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag) |
14a08a7f EG |
1948 | { |
1949 | struct iwl_host_cmd cmd = { | |
1950 | .id = REPLY_CARD_STATE_CMD, | |
1951 | .len = sizeof(u32), | |
1952 | .data = &flags, | |
1953 | .meta.flags = meta_flag, | |
1954 | }; | |
1955 | ||
1956 | return iwl_send_cmd(priv, &cmd); | |
1957 | } | |
c496294e | 1958 | EXPORT_SYMBOL(iwl_send_card_state); |
14a08a7f EG |
1959 | |
1960 | void iwl_radio_kill_sw_disable_radio(struct iwl_priv *priv) | |
1961 | { | |
1962 | unsigned long flags; | |
1963 | ||
1964 | if (test_bit(STATUS_RF_KILL_SW, &priv->status)) | |
1965 | return; | |
1966 | ||
e1623446 | 1967 | IWL_DEBUG_RF_KILL(priv, "Manual SW RF KILL set to: RADIO OFF\n"); |
14a08a7f EG |
1968 | |
1969 | iwl_scan_cancel(priv); | |
1970 | /* FIXME: This is a workaround for AP */ | |
05c914fe | 1971 | if (priv->iw_mode != NL80211_IFTYPE_AP) { |
14a08a7f EG |
1972 | spin_lock_irqsave(&priv->lock, flags); |
1973 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, | |
1974 | CSR_UCODE_SW_BIT_RFKILL); | |
1975 | spin_unlock_irqrestore(&priv->lock, flags); | |
1976 | /* call the host command only if no hw rf-kill set */ | |
1977 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status) && | |
1978 | iwl_is_ready(priv)) | |
1979 | iwl_send_card_state(priv, | |
1980 | CARD_STATE_CMD_DISABLE, 0); | |
1981 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
1982 | /* make sure mac80211 stop sending Tx frame */ | |
1983 | if (priv->mac80211_registered) | |
1984 | ieee80211_stop_queues(priv->hw); | |
1985 | } | |
1986 | } | |
1987 | EXPORT_SYMBOL(iwl_radio_kill_sw_disable_radio); | |
1988 | ||
1989 | int iwl_radio_kill_sw_enable_radio(struct iwl_priv *priv) | |
1990 | { | |
1991 | unsigned long flags; | |
1992 | ||
1993 | if (!test_bit(STATUS_RF_KILL_SW, &priv->status)) | |
1994 | return 0; | |
1995 | ||
e1623446 | 1996 | IWL_DEBUG_RF_KILL(priv, "Manual SW RF KILL set to: RADIO ON\n"); |
14a08a7f EG |
1997 | |
1998 | spin_lock_irqsave(&priv->lock, flags); | |
1999 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
2000 | ||
a9efa652 EG |
2001 | /* If the driver is up it will receive CARD_STATE_NOTIFICATION |
2002 | * notification where it will clear SW rfkill status. | |
2003 | * Setting it here would break the handler. Only if the | |
2004 | * interface is down we can set here since we don't | |
2005 | * receive any further notification. | |
2006 | */ | |
2007 | if (!priv->is_open) | |
2008 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
14a08a7f EG |
2009 | spin_unlock_irqrestore(&priv->lock, flags); |
2010 | ||
2011 | /* wake up ucode */ | |
2012 | msleep(10); | |
2013 | ||
2014 | spin_lock_irqsave(&priv->lock, flags); | |
2015 | iwl_read32(priv, CSR_UCODE_DRV_GP1); | |
2016 | if (!iwl_grab_nic_access(priv)) | |
2017 | iwl_release_nic_access(priv); | |
2018 | spin_unlock_irqrestore(&priv->lock, flags); | |
2019 | ||
2020 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { | |
e1623446 | 2021 | IWL_DEBUG_RF_KILL(priv, "Can not turn radio back on - " |
14a08a7f EG |
2022 | "disabled by HW switch\n"); |
2023 | return 0; | |
2024 | } | |
2025 | ||
edb34228 MA |
2026 | /* when driver is up while rfkill is on, it wont receive |
2027 | * any CARD_STATE_NOTIFICATION notifications so we have to | |
2028 | * restart it in here | |
2029 | */ | |
2030 | if (priv->is_open && !test_bit(STATUS_ALIVE, &priv->status)) { | |
2031 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
2032 | if (!iwl_is_rfkill(priv)) | |
2033 | queue_work(priv->workqueue, &priv->up); | |
2034 | } | |
2035 | ||
a9efa652 EG |
2036 | /* If the driver is already loaded, it will receive |
2037 | * CARD_STATE_NOTIFICATION notifications and the handler will | |
2038 | * call restart to reload the driver. | |
2039 | */ | |
14a08a7f EG |
2040 | return 1; |
2041 | } | |
2042 | EXPORT_SYMBOL(iwl_radio_kill_sw_enable_radio); | |
c0af96a6 SO |
2043 | |
2044 | void iwl_bg_rf_kill(struct work_struct *work) | |
2045 | { | |
2046 | struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill); | |
2047 | ||
2048 | wake_up_interruptible(&priv->wait_command_queue); | |
2049 | ||
2050 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2051 | return; | |
2052 | ||
2053 | mutex_lock(&priv->mutex); | |
2054 | ||
2055 | if (!iwl_is_rfkill(priv)) { | |
e1623446 | 2056 | IWL_DEBUG_RF_KILL(priv, |
c0af96a6 SO |
2057 | "HW and/or SW RF Kill no longer active, restarting " |
2058 | "device\n"); | |
2059 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status) && | |
55a3757a | 2060 | priv->is_open) |
c0af96a6 SO |
2061 | queue_work(priv->workqueue, &priv->restart); |
2062 | } else { | |
2063 | /* make sure mac80211 stop sending Tx frame */ | |
2064 | if (priv->mac80211_registered) | |
2065 | ieee80211_stop_queues(priv->hw); | |
2066 | ||
2067 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
e1623446 | 2068 | IWL_DEBUG_RF_KILL(priv, "Can not turn radio back on - " |
c0af96a6 SO |
2069 | "disabled by SW switch\n"); |
2070 | else | |
2071 | IWL_WARN(priv, "Radio Frequency Kill Switch is On:\n" | |
2072 | "Kill switch must be turned off for " | |
2073 | "wireless networking to work.\n"); | |
2074 | } | |
2075 | mutex_unlock(&priv->mutex); | |
2076 | iwl_rfkill_set_hw_state(priv); | |
2077 | } | |
2078 | EXPORT_SYMBOL(iwl_bg_rf_kill); | |
030f05ed AK |
2079 | |
2080 | void iwl_rx_pm_sleep_notif(struct iwl_priv *priv, | |
2081 | struct iwl_rx_mem_buffer *rxb) | |
2082 | { | |
2083 | #ifdef CONFIG_IWLWIFI_DEBUG | |
2084 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; | |
2085 | struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif); | |
2086 | IWL_DEBUG_RX(priv, "sleep mode: %d, src: %d\n", | |
2087 | sleep->pm_sleep_mode, sleep->pm_wakeup_src); | |
2088 | #endif | |
2089 | } | |
2090 | EXPORT_SYMBOL(iwl_rx_pm_sleep_notif); | |
2091 | ||
2092 | void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv, | |
2093 | struct iwl_rx_mem_buffer *rxb) | |
2094 | { | |
2095 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; | |
2096 | IWL_DEBUG_RADIO(priv, "Dumping %d bytes of unhandled " | |
2097 | "notification for %s:\n", | |
2098 | le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd)); | |
2099 | iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len)); | |
2100 | } | |
2101 | EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif); | |
261b9c33 AK |
2102 | |
2103 | void iwl_rx_reply_error(struct iwl_priv *priv, | |
2104 | struct iwl_rx_mem_buffer *rxb) | |
2105 | { | |
2106 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; | |
2107 | ||
2108 | IWL_ERR(priv, "Error Reply type 0x%08X cmd %s (0x%02X) " | |
2109 | "seq 0x%04X ser 0x%08X\n", | |
2110 | le32_to_cpu(pkt->u.err_resp.error_type), | |
2111 | get_cmd_string(pkt->u.err_resp.cmd_id), | |
2112 | pkt->u.err_resp.cmd_id, | |
2113 | le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num), | |
2114 | le32_to_cpu(pkt->u.err_resp.error_info)); | |
2115 | } | |
2116 | EXPORT_SYMBOL(iwl_rx_reply_error); | |
2117 | ||
a83b9141 WYG |
2118 | void iwl_clear_isr_stats(struct iwl_priv *priv) |
2119 | { | |
2120 | memset(&priv->isr_stats, 0, sizeof(priv->isr_stats)); | |
2121 | } | |
2122 | EXPORT_SYMBOL(iwl_clear_isr_stats); | |
2123 | ||
488829f1 AK |
2124 | int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, |
2125 | const struct ieee80211_tx_queue_params *params) | |
2126 | { | |
2127 | struct iwl_priv *priv = hw->priv; | |
2128 | unsigned long flags; | |
2129 | int q; | |
2130 | ||
2131 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
2132 | ||
2133 | if (!iwl_is_ready_rf(priv)) { | |
2134 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); | |
2135 | return -EIO; | |
2136 | } | |
2137 | ||
2138 | if (queue >= AC_NUM) { | |
2139 | IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); | |
2140 | return 0; | |
2141 | } | |
2142 | ||
2143 | q = AC_NUM - 1 - queue; | |
2144 | ||
2145 | spin_lock_irqsave(&priv->lock, flags); | |
2146 | ||
2147 | priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); | |
2148 | priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); | |
2149 | priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
2150 | priv->qos_data.def_qos_parm.ac[q].edca_txop = | |
2151 | cpu_to_le16((params->txop * 32)); | |
2152 | ||
2153 | priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
2154 | priv->qos_data.qos_active = 1; | |
2155 | ||
2156 | if (priv->iw_mode == NL80211_IFTYPE_AP) | |
2157 | iwl_activate_qos(priv, 1); | |
2158 | else if (priv->assoc_id && iwl_is_associated(priv)) | |
2159 | iwl_activate_qos(priv, 0); | |
2160 | ||
2161 | spin_unlock_irqrestore(&priv->lock, flags); | |
2162 | ||
2163 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
2164 | return 0; | |
2165 | } | |
2166 | EXPORT_SYMBOL(iwl_mac_conf_tx); | |
5bbe233b AK |
2167 | |
2168 | static void iwl_ht_conf(struct iwl_priv *priv, | |
2169 | struct ieee80211_bss_conf *bss_conf) | |
2170 | { | |
2171 | struct ieee80211_sta_ht_cap *ht_conf; | |
2172 | struct iwl_ht_info *iwl_conf = &priv->current_ht_config; | |
2173 | struct ieee80211_sta *sta; | |
2174 | ||
2175 | IWL_DEBUG_MAC80211(priv, "enter: \n"); | |
2176 | ||
2177 | if (!iwl_conf->is_ht) | |
2178 | return; | |
2179 | ||
2180 | ||
2181 | /* | |
2182 | * It is totally wrong to base global information on something | |
2183 | * that is valid only when associated, alas, this driver works | |
2184 | * that way and I don't know how to fix it. | |
2185 | */ | |
2186 | ||
2187 | rcu_read_lock(); | |
2188 | sta = ieee80211_find_sta(priv->hw, priv->bssid); | |
2189 | if (!sta) { | |
2190 | rcu_read_unlock(); | |
2191 | return; | |
2192 | } | |
2193 | ht_conf = &sta->ht_cap; | |
2194 | ||
2195 | if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20) | |
2196 | iwl_conf->sgf |= HT_SHORT_GI_20MHZ; | |
2197 | if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40) | |
2198 | iwl_conf->sgf |= HT_SHORT_GI_40MHZ; | |
2199 | ||
2200 | iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD); | |
2201 | iwl_conf->max_amsdu_size = | |
2202 | !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU); | |
2203 | ||
2204 | iwl_conf->supported_chan_width = | |
2205 | !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40); | |
2206 | ||
2207 | /* | |
2208 | * XXX: The HT configuration needs to be moved into iwl_mac_config() | |
2209 | * to be done there correctly. | |
2210 | */ | |
2211 | ||
2212 | iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE; | |
2213 | if (conf_is_ht40_minus(&priv->hw->conf)) | |
2214 | iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
2215 | else if (conf_is_ht40_plus(&priv->hw->conf)) | |
2216 | iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
2217 | ||
2218 | /* If no above or below channel supplied disable FAT channel */ | |
2219 | if (iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_ABOVE && | |
2220 | iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_BELOW) | |
2221 | iwl_conf->supported_chan_width = 0; | |
2222 | ||
2223 | iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2); | |
2224 | ||
2225 | memcpy(&iwl_conf->mcs, &ht_conf->mcs, 16); | |
2226 | ||
2227 | iwl_conf->tx_chan_width = iwl_conf->supported_chan_width != 0; | |
2228 | iwl_conf->ht_protection = | |
2229 | bss_conf->ht.operation_mode & IEEE80211_HT_OP_MODE_PROTECTION; | |
2230 | iwl_conf->non_GF_STA_present = | |
2231 | !!(bss_conf->ht.operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); | |
2232 | ||
2233 | rcu_read_unlock(); | |
2234 | ||
2235 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
2236 | } | |
2237 | ||
2238 | #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) | |
2239 | void iwl_bss_info_changed(struct ieee80211_hw *hw, | |
2d0ddec5 JB |
2240 | struct ieee80211_vif *vif, |
2241 | struct ieee80211_bss_conf *bss_conf, | |
2242 | u32 changes) | |
5bbe233b AK |
2243 | { |
2244 | struct iwl_priv *priv = hw->priv; | |
3a650292 | 2245 | int ret; |
5bbe233b AK |
2246 | |
2247 | IWL_DEBUG_MAC80211(priv, "changes = 0x%X\n", changes); | |
2248 | ||
2d0ddec5 JB |
2249 | if (!iwl_is_alive(priv)) |
2250 | return; | |
2251 | ||
2252 | mutex_lock(&priv->mutex); | |
2253 | ||
2254 | if (changes & BSS_CHANGED_BEACON && | |
2255 | priv->iw_mode == NL80211_IFTYPE_AP) { | |
2256 | dev_kfree_skb(priv->ibss_beacon); | |
2257 | priv->ibss_beacon = ieee80211_beacon_get(hw, vif); | |
2258 | } | |
2259 | ||
2260 | if ((changes & BSS_CHANGED_BSSID) && !iwl_is_rfkill(priv)) { | |
2261 | /* If there is currently a HW scan going on in the background | |
2262 | * then we need to cancel it else the RXON below will fail. */ | |
2263 | if (iwl_scan_cancel_timeout(priv, 100)) { | |
2264 | IWL_WARN(priv, "Aborted scan still in progress " | |
2265 | "after 100ms\n"); | |
2266 | IWL_DEBUG_MAC80211(priv, "leaving - scan abort failed.\n"); | |
2267 | mutex_unlock(&priv->mutex); | |
2268 | return; | |
2269 | } | |
2270 | memcpy(priv->staging_rxon.bssid_addr, | |
2271 | bss_conf->bssid, ETH_ALEN); | |
2272 | ||
2273 | /* TODO: Audit driver for usage of these members and see | |
2274 | * if mac80211 deprecates them (priv->bssid looks like it | |
2275 | * shouldn't be there, but I haven't scanned the IBSS code | |
2276 | * to verify) - jpk */ | |
2277 | memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN); | |
2278 | ||
2279 | if (priv->iw_mode == NL80211_IFTYPE_AP) | |
2280 | iwlcore_config_ap(priv); | |
2281 | else { | |
2282 | int rc = iwlcore_commit_rxon(priv); | |
2283 | if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc) | |
2284 | iwl_rxon_add_station( | |
2285 | priv, priv->active_rxon.bssid_addr, 1); | |
2286 | } | |
2287 | } else if (!iwl_is_rfkill(priv)) { | |
2288 | iwl_scan_cancel_timeout(priv, 100); | |
2289 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
2290 | iwlcore_commit_rxon(priv); | |
2291 | } | |
2292 | ||
2293 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC && | |
2294 | changes & BSS_CHANGED_BEACON) { | |
2295 | struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); | |
2296 | ||
2297 | if (beacon) | |
2298 | iwl_mac_beacon_update(hw, beacon); | |
2299 | } | |
2300 | ||
2301 | mutex_unlock(&priv->mutex); | |
2302 | ||
5bbe233b AK |
2303 | if (changes & BSS_CHANGED_ERP_PREAMBLE) { |
2304 | IWL_DEBUG_MAC80211(priv, "ERP_PREAMBLE %d\n", | |
2305 | bss_conf->use_short_preamble); | |
2306 | if (bss_conf->use_short_preamble) | |
2307 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; | |
2308 | else | |
2309 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
2310 | } | |
2311 | ||
2312 | if (changes & BSS_CHANGED_ERP_CTS_PROT) { | |
2313 | IWL_DEBUG_MAC80211(priv, "ERP_CTS %d\n", bss_conf->use_cts_prot); | |
2314 | if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) | |
2315 | priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK; | |
2316 | else | |
2317 | priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK; | |
2318 | } | |
2319 | ||
2320 | if (changes & BSS_CHANGED_HT) { | |
2321 | iwl_ht_conf(priv, bss_conf); | |
45823531 AK |
2322 | |
2323 | if (priv->cfg->ops->hcmd->set_rxon_chain) | |
2324 | priv->cfg->ops->hcmd->set_rxon_chain(priv); | |
5bbe233b AK |
2325 | } |
2326 | ||
2327 | if (changes & BSS_CHANGED_ASSOC) { | |
2328 | IWL_DEBUG_MAC80211(priv, "ASSOC %d\n", bss_conf->assoc); | |
2329 | /* This should never happen as this function should | |
2330 | * never be called from interrupt context. */ | |
2331 | if (WARN_ON_ONCE(in_interrupt())) | |
2332 | return; | |
2333 | if (bss_conf->assoc) { | |
2334 | priv->assoc_id = bss_conf->aid; | |
2335 | priv->beacon_int = bss_conf->beacon_int; | |
2336 | priv->power_data.dtim_period = bss_conf->dtim_period; | |
2337 | priv->timestamp = bss_conf->timestamp; | |
2338 | priv->assoc_capability = bss_conf->assoc_capability; | |
2339 | ||
2340 | /* we have just associated, don't start scan too early | |
2341 | * leave time for EAPOL exchange to complete | |
2342 | */ | |
2343 | priv->next_scan_jiffies = jiffies + | |
2344 | IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; | |
2345 | mutex_lock(&priv->mutex); | |
2346 | priv->cfg->ops->lib->post_associate(priv); | |
2347 | mutex_unlock(&priv->mutex); | |
2348 | } else { | |
2349 | priv->assoc_id = 0; | |
2350 | IWL_DEBUG_MAC80211(priv, "DISASSOC %d\n", bss_conf->assoc); | |
2351 | } | |
2352 | } else if (changes && iwl_is_associated(priv) && priv->assoc_id) { | |
2353 | IWL_DEBUG_MAC80211(priv, "Associated Changes %d\n", changes); | |
3a650292 MA |
2354 | ret = iwl_send_rxon_assoc(priv); |
2355 | if (!ret) | |
2356 | /* Sync active_rxon with latest change. */ | |
2357 | memcpy((void *)&priv->active_rxon, | |
2358 | &priv->staging_rxon, | |
2359 | sizeof(struct iwl_rxon_cmd)); | |
5bbe233b | 2360 | } |
2d0ddec5 | 2361 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
5bbe233b AK |
2362 | } |
2363 | EXPORT_SYMBOL(iwl_bss_info_changed); | |
2364 | ||
9944b938 AK |
2365 | int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) |
2366 | { | |
2367 | struct iwl_priv *priv = hw->priv; | |
2368 | unsigned long flags; | |
2369 | __le64 timestamp; | |
2370 | ||
2371 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
2372 | ||
2373 | if (!iwl_is_ready_rf(priv)) { | |
2374 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); | |
2375 | return -EIO; | |
2376 | } | |
2377 | ||
2378 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { | |
2379 | IWL_DEBUG_MAC80211(priv, "leave - not IBSS\n"); | |
2380 | return -EIO; | |
2381 | } | |
2382 | ||
2383 | spin_lock_irqsave(&priv->lock, flags); | |
2384 | ||
2385 | if (priv->ibss_beacon) | |
2386 | dev_kfree_skb(priv->ibss_beacon); | |
2387 | ||
2388 | priv->ibss_beacon = skb; | |
2389 | ||
2390 | priv->assoc_id = 0; | |
2391 | timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp; | |
2392 | priv->timestamp = le64_to_cpu(timestamp); | |
2393 | ||
2394 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
2395 | spin_unlock_irqrestore(&priv->lock, flags); | |
2396 | ||
2397 | iwl_reset_qos(priv); | |
2398 | ||
2399 | priv->cfg->ops->lib->post_associate(priv); | |
2400 | ||
2401 | ||
2402 | return 0; | |
2403 | } | |
2404 | EXPORT_SYMBOL(iwl_mac_beacon_update); | |
2405 | ||
727882d6 AK |
2406 | int iwl_set_mode(struct iwl_priv *priv, int mode) |
2407 | { | |
2408 | if (mode == NL80211_IFTYPE_ADHOC) { | |
2409 | const struct iwl_channel_info *ch_info; | |
2410 | ||
2411 | ch_info = iwl_get_channel_info(priv, | |
2412 | priv->band, | |
2413 | le16_to_cpu(priv->staging_rxon.channel)); | |
2414 | ||
2415 | if (!ch_info || !is_channel_ibss(ch_info)) { | |
2416 | IWL_ERR(priv, "channel %d not IBSS channel\n", | |
2417 | le16_to_cpu(priv->staging_rxon.channel)); | |
2418 | return -EINVAL; | |
2419 | } | |
2420 | } | |
2421 | ||
2422 | iwl_connection_init_rx_config(priv, mode); | |
2423 | ||
2424 | if (priv->cfg->ops->hcmd->set_rxon_chain) | |
2425 | priv->cfg->ops->hcmd->set_rxon_chain(priv); | |
2426 | ||
2427 | memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN); | |
2428 | ||
2429 | priv->cfg->ops->smgmt->clear_station_table(priv); | |
2430 | ||
2431 | /* dont commit rxon if rf-kill is on*/ | |
2432 | if (!iwl_is_ready_rf(priv)) | |
2433 | return -EAGAIN; | |
2434 | ||
2435 | cancel_delayed_work(&priv->scan_check); | |
2436 | if (iwl_scan_cancel_timeout(priv, 100)) { | |
2437 | IWL_WARN(priv, "Aborted scan still in progress after 100ms\n"); | |
2438 | IWL_DEBUG_MAC80211(priv, "leaving - scan abort failed.\n"); | |
2439 | return -EAGAIN; | |
2440 | } | |
2441 | ||
2442 | iwlcore_commit_rxon(priv); | |
2443 | ||
2444 | return 0; | |
2445 | } | |
2446 | EXPORT_SYMBOL(iwl_set_mode); | |
2447 | ||
cbb6ab94 AK |
2448 | int iwl_mac_add_interface(struct ieee80211_hw *hw, |
2449 | struct ieee80211_if_init_conf *conf) | |
2450 | { | |
2451 | struct iwl_priv *priv = hw->priv; | |
2452 | unsigned long flags; | |
2453 | ||
2454 | IWL_DEBUG_MAC80211(priv, "enter: type %d\n", conf->type); | |
2455 | ||
2456 | if (priv->vif) { | |
2457 | IWL_DEBUG_MAC80211(priv, "leave - vif != NULL\n"); | |
2458 | return -EOPNOTSUPP; | |
2459 | } | |
2460 | ||
2461 | spin_lock_irqsave(&priv->lock, flags); | |
2462 | priv->vif = conf->vif; | |
2463 | priv->iw_mode = conf->type; | |
2464 | ||
2465 | spin_unlock_irqrestore(&priv->lock, flags); | |
2466 | ||
2467 | mutex_lock(&priv->mutex); | |
2468 | ||
2469 | if (conf->mac_addr) { | |
2470 | IWL_DEBUG_MAC80211(priv, "Set %pM\n", conf->mac_addr); | |
2471 | memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); | |
2472 | } | |
2473 | ||
2474 | if (iwl_set_mode(priv, conf->type) == -EAGAIN) | |
2475 | /* we are not ready, will run again when ready */ | |
2476 | set_bit(STATUS_MODE_PENDING, &priv->status); | |
2477 | ||
2478 | mutex_unlock(&priv->mutex); | |
2479 | ||
2480 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
2481 | return 0; | |
2482 | } | |
2483 | EXPORT_SYMBOL(iwl_mac_add_interface); | |
2484 | ||
d8052319 AK |
2485 | void iwl_mac_remove_interface(struct ieee80211_hw *hw, |
2486 | struct ieee80211_if_init_conf *conf) | |
2487 | { | |
2488 | struct iwl_priv *priv = hw->priv; | |
2489 | ||
2490 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
2491 | ||
2492 | mutex_lock(&priv->mutex); | |
2493 | ||
2494 | if (iwl_is_ready_rf(priv)) { | |
2495 | iwl_scan_cancel_timeout(priv, 100); | |
2496 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
2497 | iwlcore_commit_rxon(priv); | |
2498 | } | |
2499 | if (priv->vif == conf->vif) { | |
2500 | priv->vif = NULL; | |
2501 | memset(priv->bssid, 0, ETH_ALEN); | |
2502 | } | |
2503 | mutex_unlock(&priv->mutex); | |
2504 | ||
2505 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
2506 | ||
2507 | } | |
2508 | EXPORT_SYMBOL(iwl_mac_remove_interface); | |
2509 | ||
4808368d AK |
2510 | /** |
2511 | * iwl_mac_config - mac80211 config callback | |
2512 | * | |
2513 | * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to | |
2514 | * be set inappropriately and the driver currently sets the hardware up to | |
2515 | * use it whenever needed. | |
2516 | */ | |
2517 | int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) | |
2518 | { | |
2519 | struct iwl_priv *priv = hw->priv; | |
2520 | const struct iwl_channel_info *ch_info; | |
2521 | struct ieee80211_conf *conf = &hw->conf; | |
2522 | unsigned long flags = 0; | |
2523 | int ret = 0; | |
2524 | u16 ch; | |
2525 | int scan_active = 0; | |
2526 | ||
2527 | mutex_lock(&priv->mutex); | |
2528 | ||
4808368d AK |
2529 | IWL_DEBUG_MAC80211(priv, "enter to channel %d changed 0x%X\n", |
2530 | conf->channel->hw_value, changed); | |
2531 | ||
2532 | if (unlikely(!priv->cfg->mod_params->disable_hw_scan && | |
2533 | test_bit(STATUS_SCANNING, &priv->status))) { | |
2534 | scan_active = 1; | |
2535 | IWL_DEBUG_MAC80211(priv, "leave - scanning\n"); | |
2536 | } | |
2537 | ||
2538 | ||
2539 | /* during scanning mac80211 will delay channel setting until | |
2540 | * scan finish with changed = 0 | |
2541 | */ | |
2542 | if (!changed || (changed & IEEE80211_CONF_CHANGE_CHANNEL)) { | |
2543 | if (scan_active) | |
2544 | goto set_ch_out; | |
2545 | ||
2546 | ch = ieee80211_frequency_to_channel(conf->channel->center_freq); | |
2547 | ch_info = iwl_get_channel_info(priv, conf->channel->band, ch); | |
2548 | if (!is_channel_valid(ch_info)) { | |
2549 | IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n"); | |
2550 | ret = -EINVAL; | |
2551 | goto set_ch_out; | |
2552 | } | |
2553 | ||
2554 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC && | |
2555 | !is_channel_ibss(ch_info)) { | |
2556 | IWL_ERR(priv, "channel %d in band %d not " | |
2557 | "IBSS channel\n", | |
2558 | conf->channel->hw_value, conf->channel->band); | |
2559 | ret = -EINVAL; | |
2560 | goto set_ch_out; | |
2561 | } | |
2562 | ||
2563 | priv->current_ht_config.is_ht = conf_is_ht(conf); | |
2564 | ||
2565 | spin_lock_irqsave(&priv->lock, flags); | |
2566 | ||
2567 | ||
2568 | /* if we are switching from ht to 2.4 clear flags | |
2569 | * from any ht related info since 2.4 does not | |
2570 | * support ht */ | |
2571 | if ((le16_to_cpu(priv->staging_rxon.channel) != ch)) | |
2572 | priv->staging_rxon.flags = 0; | |
2573 | ||
2574 | iwl_set_rxon_channel(priv, conf->channel); | |
2575 | ||
2576 | iwl_set_flags_for_band(priv, conf->channel->band); | |
2577 | spin_unlock_irqrestore(&priv->lock, flags); | |
2578 | set_ch_out: | |
2579 | /* The list of supported rates and rate mask can be different | |
2580 | * for each band; since the band may have changed, reset | |
2581 | * the rate mask to what mac80211 lists */ | |
2582 | iwl_set_rate(priv); | |
2583 | } | |
2584 | ||
2585 | if (changed & IEEE80211_CONF_CHANGE_PS) { | |
2586 | if (conf->flags & IEEE80211_CONF_PS) | |
2587 | ret = iwl_power_set_user_mode(priv, IWL_POWER_INDEX_3); | |
2588 | else | |
2589 | ret = iwl_power_set_user_mode(priv, IWL_POWER_MODE_CAM); | |
2590 | if (ret) | |
2591 | IWL_DEBUG_MAC80211(priv, "Error setting power level\n"); | |
2592 | ||
2593 | } | |
2594 | ||
2595 | if (changed & IEEE80211_CONF_CHANGE_POWER) { | |
2596 | IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n", | |
2597 | priv->tx_power_user_lmt, conf->power_level); | |
2598 | ||
2599 | iwl_set_tx_power(priv, conf->power_level, false); | |
2600 | } | |
2601 | ||
2602 | /* call to ensure that 4965 rx_chain is set properly in monitor mode */ | |
2603 | if (priv->cfg->ops->hcmd->set_rxon_chain) | |
2604 | priv->cfg->ops->hcmd->set_rxon_chain(priv); | |
2605 | ||
2606 | if (changed & IEEE80211_CONF_CHANGE_RADIO_ENABLED) { | |
2607 | if (conf->radio_enabled && | |
2608 | iwl_radio_kill_sw_enable_radio(priv)) { | |
2609 | IWL_DEBUG_MAC80211(priv, "leave - RF-KILL - " | |
2610 | "waiting for uCode\n"); | |
2611 | goto out; | |
2612 | } | |
2613 | ||
2614 | if (!conf->radio_enabled) | |
2615 | iwl_radio_kill_sw_disable_radio(priv); | |
2616 | } | |
2617 | ||
2618 | if (!conf->radio_enabled) { | |
2619 | IWL_DEBUG_MAC80211(priv, "leave - radio disabled\n"); | |
2620 | goto out; | |
2621 | } | |
2622 | ||
0cf4c01e MA |
2623 | if (!iwl_is_ready(priv)) { |
2624 | IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); | |
2625 | goto out; | |
2626 | } | |
2627 | ||
4808368d AK |
2628 | if (scan_active) |
2629 | goto out; | |
2630 | ||
2631 | if (memcmp(&priv->active_rxon, | |
2632 | &priv->staging_rxon, sizeof(priv->staging_rxon))) | |
2633 | iwlcore_commit_rxon(priv); | |
2634 | else | |
2635 | IWL_DEBUG_INFO(priv, "Not re-sending same RXON configuration.\n"); | |
2636 | ||
2637 | ||
2638 | out: | |
2639 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
2640 | mutex_unlock(&priv->mutex); | |
2641 | return ret; | |
2642 | } | |
2643 | EXPORT_SYMBOL(iwl_mac_config); | |
2644 | ||
aa89f31e AK |
2645 | int iwl_mac_get_tx_stats(struct ieee80211_hw *hw, |
2646 | struct ieee80211_tx_queue_stats *stats) | |
2647 | { | |
2648 | struct iwl_priv *priv = hw->priv; | |
2649 | int i, avail; | |
2650 | struct iwl_tx_queue *txq; | |
2651 | struct iwl_queue *q; | |
2652 | unsigned long flags; | |
2653 | ||
2654 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
2655 | ||
2656 | if (!iwl_is_ready_rf(priv)) { | |
2657 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); | |
2658 | return -EIO; | |
2659 | } | |
2660 | ||
2661 | spin_lock_irqsave(&priv->lock, flags); | |
2662 | ||
2663 | for (i = 0; i < AC_NUM; i++) { | |
2664 | txq = &priv->txq[i]; | |
2665 | q = &txq->q; | |
2666 | avail = iwl_queue_space(q); | |
2667 | ||
2668 | stats[i].len = q->n_window - avail; | |
2669 | stats[i].limit = q->n_window - q->high_mark; | |
2670 | stats[i].count = q->n_window; | |
2671 | ||
2672 | } | |
2673 | spin_unlock_irqrestore(&priv->lock, flags); | |
2674 | ||
2675 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
2676 | ||
2677 | return 0; | |
2678 | } | |
2679 | EXPORT_SYMBOL(iwl_mac_get_tx_stats); | |
2680 | ||
bd564261 AK |
2681 | void iwl_mac_reset_tsf(struct ieee80211_hw *hw) |
2682 | { | |
2683 | struct iwl_priv *priv = hw->priv; | |
2684 | unsigned long flags; | |
2685 | ||
2686 | mutex_lock(&priv->mutex); | |
2687 | IWL_DEBUG_MAC80211(priv, "enter\n"); | |
2688 | ||
2689 | spin_lock_irqsave(&priv->lock, flags); | |
2690 | memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info)); | |
2691 | spin_unlock_irqrestore(&priv->lock, flags); | |
2692 | ||
2693 | iwl_reset_qos(priv); | |
2694 | ||
2695 | spin_lock_irqsave(&priv->lock, flags); | |
2696 | priv->assoc_id = 0; | |
2697 | priv->assoc_capability = 0; | |
2698 | priv->assoc_station_added = 0; | |
2699 | ||
2700 | /* new association get rid of ibss beacon skb */ | |
2701 | if (priv->ibss_beacon) | |
2702 | dev_kfree_skb(priv->ibss_beacon); | |
2703 | ||
2704 | priv->ibss_beacon = NULL; | |
2705 | ||
57c4d7b4 | 2706 | priv->beacon_int = priv->vif->bss_conf.beacon_int; |
bd564261 AK |
2707 | priv->timestamp = 0; |
2708 | if ((priv->iw_mode == NL80211_IFTYPE_STATION)) | |
2709 | priv->beacon_int = 0; | |
2710 | ||
2711 | spin_unlock_irqrestore(&priv->lock, flags); | |
2712 | ||
2713 | if (!iwl_is_ready_rf(priv)) { | |
2714 | IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); | |
2715 | mutex_unlock(&priv->mutex); | |
2716 | return; | |
2717 | } | |
2718 | ||
2719 | /* we are restarting association process | |
2720 | * clear RXON_FILTER_ASSOC_MSK bit | |
2721 | */ | |
2722 | if (priv->iw_mode != NL80211_IFTYPE_AP) { | |
2723 | iwl_scan_cancel_timeout(priv, 100); | |
2724 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
2725 | iwlcore_commit_rxon(priv); | |
2726 | } | |
2727 | ||
2728 | iwl_power_update_mode(priv, 0); | |
2729 | ||
2730 | /* Per mac80211.h: This is only used in IBSS mode... */ | |
2731 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { | |
2732 | ||
2733 | /* switch to CAM during association period. | |
2734 | * the ucode will block any association/authentication | |
2735 | * frome during assiciation period if it can not hear | |
2736 | * the AP because of PM. the timer enable PM back is | |
2737 | * association do not complete | |
2738 | */ | |
2739 | if (priv->hw->conf.channel->flags & | |
2740 | (IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_RADAR)) | |
2741 | iwl_power_disable_management(priv, 3000); | |
2742 | ||
2743 | IWL_DEBUG_MAC80211(priv, "leave - not in IBSS\n"); | |
2744 | mutex_unlock(&priv->mutex); | |
2745 | return; | |
2746 | } | |
2747 | ||
2748 | iwl_set_rate(priv); | |
2749 | ||
2750 | mutex_unlock(&priv->mutex); | |
2751 | ||
2752 | IWL_DEBUG_MAC80211(priv, "leave\n"); | |
2753 | } | |
2754 | EXPORT_SYMBOL(iwl_mac_reset_tsf); | |
2755 | ||
6da3a13e WYG |
2756 | #ifdef CONFIG_PM |
2757 | ||
2758 | int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state) | |
2759 | { | |
2760 | struct iwl_priv *priv = pci_get_drvdata(pdev); | |
2761 | ||
2762 | /* | |
2763 | * This function is called when system goes into suspend state | |
2764 | * mac80211 will call iwl_mac_stop() from the mac80211 suspend function | |
2765 | * first but since iwl_mac_stop() has no knowledge of who the caller is, | |
2766 | * it will not call apm_ops.stop() to stop the DMA operation. | |
2767 | * Calling apm_ops.stop here to make sure we stop the DMA. | |
2768 | */ | |
2769 | priv->cfg->ops->lib->apm_ops.stop(priv); | |
2770 | ||
2771 | pci_save_state(pdev); | |
2772 | pci_disable_device(pdev); | |
2773 | pci_set_power_state(pdev, PCI_D3hot); | |
2774 | ||
2775 | return 0; | |
2776 | } | |
2777 | EXPORT_SYMBOL(iwl_pci_suspend); | |
2778 | ||
2779 | int iwl_pci_resume(struct pci_dev *pdev) | |
2780 | { | |
2781 | struct iwl_priv *priv = pci_get_drvdata(pdev); | |
2782 | int ret; | |
2783 | ||
2784 | pci_set_power_state(pdev, PCI_D0); | |
2785 | ret = pci_enable_device(pdev); | |
2786 | if (ret) | |
2787 | return ret; | |
2788 | pci_restore_state(pdev); | |
2789 | iwl_enable_interrupts(priv); | |
2790 | ||
2791 | return 0; | |
2792 | } | |
2793 | EXPORT_SYMBOL(iwl_pci_resume); | |
2794 | ||
2795 | #endif /* CONFIG_PM */ |