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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> | |
1d0a082d | 31 | #include <net/mac80211.h> |
df48c323 | 32 | |
6bc913bd | 33 | #include "iwl-eeprom.h" |
3e0d4cb1 | 34 | #include "iwl-dev.h" /* FIXME: remove */ |
19335774 | 35 | #include "iwl-debug.h" |
df48c323 | 36 | #include "iwl-core.h" |
b661c819 | 37 | #include "iwl-io.h" |
ad97edd2 | 38 | #include "iwl-rfkill.h" |
5da4b55f | 39 | #include "iwl-power.h" |
83dde8c9 | 40 | #include "iwl-sta.h" |
df48c323 | 41 | |
1d0a082d | 42 | |
df48c323 TW |
43 | MODULE_DESCRIPTION("iwl core"); |
44 | MODULE_VERSION(IWLWIFI_VERSION); | |
a7b75207 | 45 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
712b6cf5 | 46 | MODULE_LICENSE("GPL"); |
df48c323 | 47 | |
c7de35cd RR |
48 | #define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \ |
49 | [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \ | |
50 | IWL_RATE_SISO_##s##M_PLCP, \ | |
51 | IWL_RATE_MIMO2_##s##M_PLCP,\ | |
52 | IWL_RATE_MIMO3_##s##M_PLCP,\ | |
53 | IWL_RATE_##r##M_IEEE, \ | |
54 | IWL_RATE_##ip##M_INDEX, \ | |
55 | IWL_RATE_##in##M_INDEX, \ | |
56 | IWL_RATE_##rp##M_INDEX, \ | |
57 | IWL_RATE_##rn##M_INDEX, \ | |
58 | IWL_RATE_##pp##M_INDEX, \ | |
59 | IWL_RATE_##np##M_INDEX } | |
60 | ||
61 | /* | |
62 | * Parameter order: | |
63 | * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate | |
64 | * | |
65 | * If there isn't a valid next or previous rate then INV is used which | |
66 | * maps to IWL_RATE_INVALID | |
67 | * | |
68 | */ | |
1826dcc0 | 69 | const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = { |
c7de35cd RR |
70 | IWL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */ |
71 | IWL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */ | |
72 | IWL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */ | |
73 | IWL_DECLARE_RATE_INFO(11, INV, 9, 12, 9, 12, 5, 18), /* 11mbps */ | |
74 | IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */ | |
75 | IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */ | |
76 | IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */ | |
77 | IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */ | |
78 | IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */ | |
79 | IWL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */ | |
80 | IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */ | |
81 | IWL_DECLARE_RATE_INFO(54, 54, 48, INV, 48, INV, 48, INV),/* 54mbps */ | |
82 | IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */ | |
83 | /* FIXME:RS: ^^ should be INV (legacy) */ | |
84 | }; | |
1826dcc0 | 85 | EXPORT_SYMBOL(iwl_rates); |
c7de35cd | 86 | |
e7d326ac TW |
87 | /** |
88 | * translate ucode response to mac80211 tx status control values | |
89 | */ | |
90 | void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags, | |
e6a9854b | 91 | struct ieee80211_tx_info *info) |
e7d326ac TW |
92 | { |
93 | int rate_index; | |
e6a9854b | 94 | struct ieee80211_tx_rate *r = &info->control.rates[0]; |
e7d326ac | 95 | |
e6a9854b | 96 | info->antenna_sel_tx = |
e7d326ac TW |
97 | ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); |
98 | if (rate_n_flags & RATE_MCS_HT_MSK) | |
e6a9854b | 99 | r->flags |= IEEE80211_TX_RC_MCS; |
e7d326ac | 100 | if (rate_n_flags & RATE_MCS_GF_MSK) |
e6a9854b | 101 | r->flags |= IEEE80211_TX_RC_GREEN_FIELD; |
e7d326ac | 102 | if (rate_n_flags & RATE_MCS_FAT_MSK) |
e6a9854b | 103 | r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; |
e7d326ac | 104 | if (rate_n_flags & RATE_MCS_DUP_MSK) |
e6a9854b | 105 | r->flags |= IEEE80211_TX_RC_DUP_DATA; |
e7d326ac | 106 | if (rate_n_flags & RATE_MCS_SGI_MSK) |
e6a9854b | 107 | r->flags |= IEEE80211_TX_RC_SHORT_GI; |
e7d326ac | 108 | rate_index = iwl_hwrate_to_plcp_idx(rate_n_flags); |
e6a9854b | 109 | if (info->band == IEEE80211_BAND_5GHZ) |
e7d326ac | 110 | rate_index -= IWL_FIRST_OFDM_RATE; |
e6a9854b | 111 | r->idx = rate_index; |
e7d326ac TW |
112 | } |
113 | EXPORT_SYMBOL(iwl_hwrate_to_tx_control); | |
114 | ||
115 | int iwl_hwrate_to_plcp_idx(u32 rate_n_flags) | |
116 | { | |
117 | int idx = 0; | |
118 | ||
119 | /* HT rate format */ | |
120 | if (rate_n_flags & RATE_MCS_HT_MSK) { | |
121 | idx = (rate_n_flags & 0xff); | |
122 | ||
60d32215 DH |
123 | if (idx >= IWL_RATE_MIMO3_6M_PLCP) |
124 | idx = idx - IWL_RATE_MIMO3_6M_PLCP; | |
125 | else if (idx >= IWL_RATE_MIMO2_6M_PLCP) | |
e7d326ac TW |
126 | idx = idx - IWL_RATE_MIMO2_6M_PLCP; |
127 | ||
128 | idx += IWL_FIRST_OFDM_RATE; | |
129 | /* skip 9M not supported in ht*/ | |
130 | if (idx >= IWL_RATE_9M_INDEX) | |
131 | idx += 1; | |
132 | if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE)) | |
133 | return idx; | |
134 | ||
135 | /* legacy rate format, search for match in table */ | |
136 | } else { | |
137 | for (idx = 0; idx < ARRAY_SIZE(iwl_rates); idx++) | |
138 | if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF)) | |
139 | return idx; | |
140 | } | |
141 | ||
142 | return -1; | |
143 | } | |
144 | EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx); | |
145 | ||
76eff18b TW |
146 | u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant) |
147 | { | |
148 | int i; | |
149 | u8 ind = ant; | |
150 | for (i = 0; i < RATE_ANT_NUM - 1; i++) { | |
151 | ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0; | |
152 | if (priv->hw_params.valid_tx_ant & BIT(ind)) | |
153 | return ind; | |
154 | } | |
155 | return ant; | |
156 | } | |
57bd1bea TW |
157 | |
158 | const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; | |
159 | EXPORT_SYMBOL(iwl_bcast_addr); | |
160 | ||
161 | ||
1d0a082d AK |
162 | /* This function both allocates and initializes hw and priv. */ |
163 | struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg, | |
164 | struct ieee80211_ops *hw_ops) | |
165 | { | |
166 | struct iwl_priv *priv; | |
167 | ||
168 | /* mac80211 allocates memory for this device instance, including | |
169 | * space for this driver's private structure */ | |
170 | struct ieee80211_hw *hw = | |
171 | ieee80211_alloc_hw(sizeof(struct iwl_priv), hw_ops); | |
172 | if (hw == NULL) { | |
a3139c59 SO |
173 | printk(KERN_ERR "%s: Can not allocate network device\n", |
174 | cfg->name); | |
1d0a082d AK |
175 | goto out; |
176 | } | |
177 | ||
178 | priv = hw->priv; | |
179 | priv->hw = hw; | |
180 | ||
181 | out: | |
182 | return hw; | |
183 | } | |
184 | EXPORT_SYMBOL(iwl_alloc_all); | |
185 | ||
b661c819 TW |
186 | void iwl_hw_detect(struct iwl_priv *priv) |
187 | { | |
188 | priv->hw_rev = _iwl_read32(priv, CSR_HW_REV); | |
189 | priv->hw_wa_rev = _iwl_read32(priv, CSR_HW_REV_WA_REG); | |
190 | pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &priv->rev_id); | |
191 | } | |
192 | EXPORT_SYMBOL(iwl_hw_detect); | |
193 | ||
1053d35f RR |
194 | int iwl_hw_nic_init(struct iwl_priv *priv) |
195 | { | |
196 | unsigned long flags; | |
197 | struct iwl_rx_queue *rxq = &priv->rxq; | |
198 | int ret; | |
199 | ||
200 | /* nic_init */ | |
1053d35f | 201 | spin_lock_irqsave(&priv->lock, flags); |
1b73af82 | 202 | priv->cfg->ops->lib->apm_ops.init(priv); |
1053d35f RR |
203 | iwl_write32(priv, CSR_INT_COALESCING, 512 / 32); |
204 | spin_unlock_irqrestore(&priv->lock, flags); | |
205 | ||
206 | ret = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN); | |
207 | ||
208 | priv->cfg->ops->lib->apm_ops.config(priv); | |
209 | ||
210 | /* Allocate the RX queue, or reset if it is already allocated */ | |
211 | if (!rxq->bd) { | |
212 | ret = iwl_rx_queue_alloc(priv); | |
213 | if (ret) { | |
15b1687c | 214 | IWL_ERR(priv, "Unable to initialize Rx queue\n"); |
1053d35f RR |
215 | return -ENOMEM; |
216 | } | |
217 | } else | |
218 | iwl_rx_queue_reset(priv, rxq); | |
219 | ||
220 | iwl_rx_replenish(priv); | |
221 | ||
222 | iwl_rx_init(priv, rxq); | |
223 | ||
224 | spin_lock_irqsave(&priv->lock, flags); | |
225 | ||
226 | rxq->need_update = 1; | |
227 | iwl_rx_queue_update_write_ptr(priv, rxq); | |
228 | ||
229 | spin_unlock_irqrestore(&priv->lock, flags); | |
230 | ||
231 | /* Allocate and init all Tx and Command queues */ | |
232 | ret = iwl_txq_ctx_reset(priv); | |
233 | if (ret) | |
234 | return ret; | |
235 | ||
236 | set_bit(STATUS_INIT, &priv->status); | |
237 | ||
238 | return 0; | |
239 | } | |
240 | EXPORT_SYMBOL(iwl_hw_nic_init); | |
241 | ||
c7de35cd | 242 | void iwl_reset_qos(struct iwl_priv *priv) |
bf85ea4f AK |
243 | { |
244 | u16 cw_min = 15; | |
245 | u16 cw_max = 1023; | |
246 | u8 aifs = 2; | |
30dab79e | 247 | bool is_legacy = false; |
bf85ea4f AK |
248 | unsigned long flags; |
249 | int i; | |
250 | ||
251 | spin_lock_irqsave(&priv->lock, flags); | |
30dab79e WT |
252 | /* QoS always active in AP and ADHOC mode |
253 | * In STA mode wait for association | |
254 | */ | |
255 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC || | |
256 | priv->iw_mode == NL80211_IFTYPE_AP) | |
257 | priv->qos_data.qos_active = 1; | |
258 | else | |
259 | priv->qos_data.qos_active = 0; | |
bf85ea4f | 260 | |
30dab79e WT |
261 | /* check for legacy mode */ |
262 | if ((priv->iw_mode == NL80211_IFTYPE_ADHOC && | |
263 | (priv->active_rate & IWL_OFDM_RATES_MASK) == 0) || | |
264 | (priv->iw_mode == NL80211_IFTYPE_STATION && | |
265 | (priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK) == 0)) { | |
bf85ea4f AK |
266 | cw_min = 31; |
267 | is_legacy = 1; | |
268 | } | |
269 | ||
270 | if (priv->qos_data.qos_active) | |
271 | aifs = 3; | |
272 | ||
273 | priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min); | |
274 | priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max); | |
275 | priv->qos_data.def_qos_parm.ac[0].aifsn = aifs; | |
276 | priv->qos_data.def_qos_parm.ac[0].edca_txop = 0; | |
277 | priv->qos_data.def_qos_parm.ac[0].reserved1 = 0; | |
278 | ||
279 | if (priv->qos_data.qos_active) { | |
280 | i = 1; | |
281 | priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min); | |
282 | priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max); | |
283 | priv->qos_data.def_qos_parm.ac[i].aifsn = 7; | |
284 | priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; | |
285 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
286 | ||
287 | i = 2; | |
288 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
289 | cpu_to_le16((cw_min + 1) / 2 - 1); | |
290 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
291 | cpu_to_le16(cw_max); | |
292 | priv->qos_data.def_qos_parm.ac[i].aifsn = 2; | |
293 | if (is_legacy) | |
294 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
295 | cpu_to_le16(6016); | |
296 | else | |
297 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
298 | cpu_to_le16(3008); | |
299 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
300 | ||
301 | i = 3; | |
302 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
303 | cpu_to_le16((cw_min + 1) / 4 - 1); | |
304 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
305 | cpu_to_le16((cw_max + 1) / 2 - 1); | |
306 | priv->qos_data.def_qos_parm.ac[i].aifsn = 2; | |
307 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
308 | if (is_legacy) | |
309 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
310 | cpu_to_le16(3264); | |
311 | else | |
312 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
313 | cpu_to_le16(1504); | |
314 | } else { | |
315 | for (i = 1; i < 4; i++) { | |
316 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
317 | cpu_to_le16(cw_min); | |
318 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
319 | cpu_to_le16(cw_max); | |
320 | priv->qos_data.def_qos_parm.ac[i].aifsn = aifs; | |
321 | priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; | |
322 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
323 | } | |
324 | } | |
325 | IWL_DEBUG_QOS("set QoS to default \n"); | |
326 | ||
327 | spin_unlock_irqrestore(&priv->lock, flags); | |
328 | } | |
c7de35cd RR |
329 | EXPORT_SYMBOL(iwl_reset_qos); |
330 | ||
d9fe60de JB |
331 | #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */ |
332 | #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */ | |
c7de35cd | 333 | static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv, |
d9fe60de | 334 | struct ieee80211_sta_ht_cap *ht_info, |
c7de35cd RR |
335 | enum ieee80211_band band) |
336 | { | |
39130df3 RR |
337 | u16 max_bit_rate = 0; |
338 | u8 rx_chains_num = priv->hw_params.rx_chains_num; | |
339 | u8 tx_chains_num = priv->hw_params.tx_chains_num; | |
340 | ||
c7de35cd | 341 | ht_info->cap = 0; |
d9fe60de | 342 | memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); |
c7de35cd | 343 | |
d9fe60de | 344 | ht_info->ht_supported = true; |
c7de35cd | 345 | |
d9fe60de JB |
346 | ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; |
347 | ht_info->cap |= IEEE80211_HT_CAP_SGI_20; | |
348 | ht_info->cap |= (IEEE80211_HT_CAP_SM_PS & | |
00c5ae2f | 349 | (WLAN_HT_CAP_SM_PS_DISABLED << 2)); |
39130df3 RR |
350 | |
351 | max_bit_rate = MAX_BIT_RATE_20_MHZ; | |
c7de35cd | 352 | if (priv->hw_params.fat_channel & BIT(band)) { |
d9fe60de JB |
353 | ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; |
354 | ht_info->cap |= IEEE80211_HT_CAP_SGI_40; | |
355 | ht_info->mcs.rx_mask[4] = 0x01; | |
39130df3 | 356 | max_bit_rate = MAX_BIT_RATE_40_MHZ; |
c7de35cd | 357 | } |
c7de35cd RR |
358 | |
359 | if (priv->cfg->mod_params->amsdu_size_8K) | |
d9fe60de | 360 | ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU; |
c7de35cd RR |
361 | |
362 | ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF; | |
363 | ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF; | |
364 | ||
d9fe60de | 365 | ht_info->mcs.rx_mask[0] = 0xFF; |
39130df3 | 366 | if (rx_chains_num >= 2) |
d9fe60de | 367 | ht_info->mcs.rx_mask[1] = 0xFF; |
39130df3 | 368 | if (rx_chains_num >= 3) |
d9fe60de | 369 | ht_info->mcs.rx_mask[2] = 0xFF; |
39130df3 RR |
370 | |
371 | /* Highest supported Rx data rate */ | |
372 | max_bit_rate *= rx_chains_num; | |
d9fe60de JB |
373 | WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK); |
374 | ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate); | |
39130df3 RR |
375 | |
376 | /* Tx MCS capabilities */ | |
d9fe60de | 377 | ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; |
39130df3 | 378 | if (tx_chains_num != rx_chains_num) { |
d9fe60de JB |
379 | ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; |
380 | ht_info->mcs.tx_params |= ((tx_chains_num - 1) << | |
381 | IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); | |
39130df3 | 382 | } |
c7de35cd | 383 | } |
c7de35cd RR |
384 | |
385 | static void iwlcore_init_hw_rates(struct iwl_priv *priv, | |
386 | struct ieee80211_rate *rates) | |
387 | { | |
388 | int i; | |
389 | ||
390 | for (i = 0; i < IWL_RATE_COUNT; i++) { | |
1826dcc0 | 391 | rates[i].bitrate = iwl_rates[i].ieee * 5; |
c7de35cd RR |
392 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ |
393 | rates[i].hw_value_short = i; | |
394 | rates[i].flags = 0; | |
395 | if ((i > IWL_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) { | |
396 | /* | |
397 | * If CCK != 1M then set short preamble rate flag. | |
398 | */ | |
399 | rates[i].flags |= | |
1826dcc0 | 400 | (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ? |
c7de35cd RR |
401 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
402 | } | |
403 | } | |
404 | } | |
405 | ||
406 | /** | |
407 | * iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom | |
408 | */ | |
409 | static int iwlcore_init_geos(struct iwl_priv *priv) | |
410 | { | |
411 | struct iwl_channel_info *ch; | |
412 | struct ieee80211_supported_band *sband; | |
413 | struct ieee80211_channel *channels; | |
414 | struct ieee80211_channel *geo_ch; | |
415 | struct ieee80211_rate *rates; | |
416 | int i = 0; | |
417 | ||
418 | if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates || | |
419 | priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) { | |
420 | IWL_DEBUG_INFO("Geography modes already initialized.\n"); | |
421 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
422 | return 0; | |
423 | } | |
424 | ||
425 | channels = kzalloc(sizeof(struct ieee80211_channel) * | |
426 | priv->channel_count, GFP_KERNEL); | |
427 | if (!channels) | |
428 | return -ENOMEM; | |
429 | ||
430 | rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)), | |
431 | GFP_KERNEL); | |
432 | if (!rates) { | |
433 | kfree(channels); | |
434 | return -ENOMEM; | |
435 | } | |
436 | ||
437 | /* 5.2GHz channels start after the 2.4GHz channels */ | |
438 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; | |
439 | sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)]; | |
440 | /* just OFDM */ | |
441 | sband->bitrates = &rates[IWL_FIRST_OFDM_RATE]; | |
442 | sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE; | |
443 | ||
49779293 | 444 | if (priv->cfg->sku & IWL_SKU_N) |
d9fe60de | 445 | iwlcore_init_ht_hw_capab(priv, &sband->ht_cap, |
49779293 | 446 | IEEE80211_BAND_5GHZ); |
c7de35cd RR |
447 | |
448 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; | |
449 | sband->channels = channels; | |
450 | /* OFDM & CCK */ | |
451 | sband->bitrates = rates; | |
452 | sband->n_bitrates = IWL_RATE_COUNT; | |
453 | ||
49779293 | 454 | if (priv->cfg->sku & IWL_SKU_N) |
d9fe60de | 455 | iwlcore_init_ht_hw_capab(priv, &sband->ht_cap, |
49779293 | 456 | IEEE80211_BAND_2GHZ); |
c7de35cd RR |
457 | |
458 | priv->ieee_channels = channels; | |
459 | priv->ieee_rates = rates; | |
460 | ||
461 | iwlcore_init_hw_rates(priv, rates); | |
462 | ||
463 | for (i = 0; i < priv->channel_count; i++) { | |
464 | ch = &priv->channel_info[i]; | |
465 | ||
466 | /* FIXME: might be removed if scan is OK */ | |
467 | if (!is_channel_valid(ch)) | |
468 | continue; | |
469 | ||
470 | if (is_channel_a_band(ch)) | |
471 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; | |
472 | else | |
473 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; | |
474 | ||
475 | geo_ch = &sband->channels[sband->n_channels++]; | |
476 | ||
477 | geo_ch->center_freq = | |
478 | ieee80211_channel_to_frequency(ch->channel); | |
479 | geo_ch->max_power = ch->max_power_avg; | |
480 | geo_ch->max_antenna_gain = 0xff; | |
481 | geo_ch->hw_value = ch->channel; | |
482 | ||
483 | if (is_channel_valid(ch)) { | |
484 | if (!(ch->flags & EEPROM_CHANNEL_IBSS)) | |
485 | geo_ch->flags |= IEEE80211_CHAN_NO_IBSS; | |
486 | ||
487 | if (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) | |
488 | geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN; | |
489 | ||
490 | if (ch->flags & EEPROM_CHANNEL_RADAR) | |
491 | geo_ch->flags |= IEEE80211_CHAN_RADAR; | |
492 | ||
963f5517 | 493 | geo_ch->flags |= ch->fat_extension_channel; |
4d38c2e8 | 494 | |
630fe9b6 TW |
495 | if (ch->max_power_avg > priv->tx_power_channel_lmt) |
496 | priv->tx_power_channel_lmt = ch->max_power_avg; | |
c7de35cd RR |
497 | } else { |
498 | geo_ch->flags |= IEEE80211_CHAN_DISABLED; | |
499 | } | |
500 | ||
501 | /* Save flags for reg domain usage */ | |
502 | geo_ch->orig_flags = geo_ch->flags; | |
503 | ||
963f5517 | 504 | IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0x%X\n", |
c7de35cd RR |
505 | ch->channel, geo_ch->center_freq, |
506 | is_channel_a_band(ch) ? "5.2" : "2.4", | |
507 | geo_ch->flags & IEEE80211_CHAN_DISABLED ? | |
508 | "restricted" : "valid", | |
509 | geo_ch->flags); | |
510 | } | |
511 | ||
512 | if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) && | |
513 | priv->cfg->sku & IWL_SKU_A) { | |
978785a3 TW |
514 | IWL_INFO(priv, "Incorrectly detected BG card as ABG. " |
515 | "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n", | |
a3139c59 SO |
516 | priv->pci_dev->device, |
517 | priv->pci_dev->subsystem_device); | |
c7de35cd RR |
518 | priv->cfg->sku &= ~IWL_SKU_A; |
519 | } | |
520 | ||
978785a3 | 521 | IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n", |
a3139c59 SO |
522 | priv->bands[IEEE80211_BAND_2GHZ].n_channels, |
523 | priv->bands[IEEE80211_BAND_5GHZ].n_channels); | |
c7de35cd RR |
524 | |
525 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
526 | ||
527 | return 0; | |
528 | } | |
529 | ||
530 | /* | |
531 | * iwlcore_free_geos - undo allocations in iwlcore_init_geos | |
532 | */ | |
6ba87956 | 533 | static void iwlcore_free_geos(struct iwl_priv *priv) |
c7de35cd RR |
534 | { |
535 | kfree(priv->ieee_channels); | |
536 | kfree(priv->ieee_rates); | |
537 | clear_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
538 | } | |
c7de35cd | 539 | |
28a6b07a | 540 | static bool is_single_rx_stream(struct iwl_priv *priv) |
c7de35cd RR |
541 | { |
542 | return !priv->current_ht_config.is_ht || | |
d9fe60de JB |
543 | ((priv->current_ht_config.mcs.rx_mask[1] == 0) && |
544 | (priv->current_ht_config.mcs.rx_mask[2] == 0)); | |
c7de35cd | 545 | } |
963f5517 | 546 | |
47c5196e TW |
547 | static u8 iwl_is_channel_extension(struct iwl_priv *priv, |
548 | enum ieee80211_band band, | |
549 | u16 channel, u8 extension_chan_offset) | |
550 | { | |
551 | const struct iwl_channel_info *ch_info; | |
552 | ||
553 | ch_info = iwl_get_channel_info(priv, band, channel); | |
554 | if (!is_channel_valid(ch_info)) | |
555 | return 0; | |
556 | ||
d9fe60de | 557 | if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) |
963f5517 EG |
558 | return !(ch_info->fat_extension_channel & |
559 | IEEE80211_CHAN_NO_FAT_ABOVE); | |
d9fe60de | 560 | else if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) |
963f5517 EG |
561 | return !(ch_info->fat_extension_channel & |
562 | IEEE80211_CHAN_NO_FAT_BELOW); | |
47c5196e TW |
563 | |
564 | return 0; | |
565 | } | |
566 | ||
567 | u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv, | |
d9fe60de | 568 | struct ieee80211_sta_ht_cap *sta_ht_inf) |
47c5196e TW |
569 | { |
570 | struct iwl_ht_info *iwl_ht_conf = &priv->current_ht_config; | |
571 | ||
572 | if ((!iwl_ht_conf->is_ht) || | |
573 | (iwl_ht_conf->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ) || | |
d9fe60de | 574 | (iwl_ht_conf->extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE)) |
47c5196e TW |
575 | return 0; |
576 | ||
577 | if (sta_ht_inf) { | |
578 | if ((!sta_ht_inf->ht_supported) || | |
d9fe60de | 579 | (!(sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40))) |
47c5196e TW |
580 | return 0; |
581 | } | |
582 | ||
583 | return iwl_is_channel_extension(priv, priv->band, | |
ae5eb026 JB |
584 | le16_to_cpu(priv->staging_rxon.channel), |
585 | iwl_ht_conf->extension_chan_offset); | |
47c5196e TW |
586 | } |
587 | EXPORT_SYMBOL(iwl_is_fat_tx_allowed); | |
588 | ||
589 | void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) | |
590 | { | |
c1adf9fb | 591 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
47c5196e TW |
592 | u32 val; |
593 | ||
42eb7c64 EG |
594 | if (!ht_info->is_ht) { |
595 | rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK | | |
596 | RXON_FLG_CHANNEL_MODE_PURE_40_MSK | | |
597 | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK | | |
598 | RXON_FLG_FAT_PROT_MSK | | |
599 | RXON_FLG_HT_PROT_MSK); | |
47c5196e | 600 | return; |
42eb7c64 | 601 | } |
47c5196e TW |
602 | |
603 | /* Set up channel bandwidth: 20 MHz only, or 20/40 mixed if fat ok */ | |
604 | if (iwl_is_fat_tx_allowed(priv, NULL)) | |
605 | rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED_MSK; | |
606 | else | |
607 | rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK | | |
608 | RXON_FLG_CHANNEL_MODE_PURE_40_MSK); | |
609 | ||
47c5196e TW |
610 | /* Note: control channel is opposite of extension channel */ |
611 | switch (ht_info->extension_chan_offset) { | |
d9fe60de | 612 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: |
47c5196e TW |
613 | rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); |
614 | break; | |
d9fe60de | 615 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: |
47c5196e TW |
616 | rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; |
617 | break; | |
d9fe60de | 618 | case IEEE80211_HT_PARAM_CHA_SEC_NONE: |
47c5196e TW |
619 | default: |
620 | rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK; | |
621 | break; | |
622 | } | |
623 | ||
624 | val = ht_info->ht_protection; | |
625 | ||
626 | rxon->flags |= cpu_to_le32(val << RXON_FLG_HT_OPERATING_MODE_POS); | |
627 | ||
628 | iwl_set_rxon_chain(priv); | |
629 | ||
630 | IWL_DEBUG_ASSOC("supported HT rate 0x%X 0x%X 0x%X " | |
631 | "rxon flags 0x%X operation mode :0x%X " | |
ae5eb026 | 632 | "extension channel offset 0x%x\n", |
d9fe60de JB |
633 | ht_info->mcs.rx_mask[0], |
634 | ht_info->mcs.rx_mask[1], | |
635 | ht_info->mcs.rx_mask[2], | |
47c5196e | 636 | le32_to_cpu(rxon->flags), ht_info->ht_protection, |
ae5eb026 | 637 | ht_info->extension_chan_offset); |
47c5196e TW |
638 | return; |
639 | } | |
640 | EXPORT_SYMBOL(iwl_set_rxon_ht); | |
641 | ||
9e5e6c32 TW |
642 | #define IWL_NUM_RX_CHAINS_MULTIPLE 3 |
643 | #define IWL_NUM_RX_CHAINS_SINGLE 2 | |
644 | #define IWL_NUM_IDLE_CHAINS_DUAL 2 | |
645 | #define IWL_NUM_IDLE_CHAINS_SINGLE 1 | |
646 | ||
647 | /* Determine how many receiver/antenna chains to use. | |
c7de35cd RR |
648 | * More provides better reception via diversity. Fewer saves power. |
649 | * MIMO (dual stream) requires at least 2, but works better with 3. | |
650 | * This does not determine *which* chains to use, just how many. | |
651 | */ | |
28a6b07a | 652 | static int iwl_get_active_rx_chain_count(struct iwl_priv *priv) |
c7de35cd | 653 | { |
28a6b07a TW |
654 | bool is_single = is_single_rx_stream(priv); |
655 | bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); | |
c7de35cd RR |
656 | |
657 | /* # of Rx chains to use when expecting MIMO. */ | |
12837be1 RR |
658 | if (is_single || (!is_cam && (priv->current_ht_config.sm_ps == |
659 | WLAN_HT_CAP_SM_PS_STATIC))) | |
9e5e6c32 | 660 | return IWL_NUM_RX_CHAINS_SINGLE; |
c7de35cd | 661 | else |
9e5e6c32 | 662 | return IWL_NUM_RX_CHAINS_MULTIPLE; |
28a6b07a | 663 | } |
c7de35cd | 664 | |
28a6b07a TW |
665 | static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt) |
666 | { | |
667 | int idle_cnt; | |
668 | bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); | |
c7de35cd | 669 | /* # Rx chains when idling and maybe trying to save power */ |
12837be1 | 670 | switch (priv->current_ht_config.sm_ps) { |
00c5ae2f TW |
671 | case WLAN_HT_CAP_SM_PS_STATIC: |
672 | case WLAN_HT_CAP_SM_PS_DYNAMIC: | |
9e5e6c32 TW |
673 | idle_cnt = (is_cam) ? IWL_NUM_IDLE_CHAINS_DUAL : |
674 | IWL_NUM_IDLE_CHAINS_SINGLE; | |
c7de35cd | 675 | break; |
00c5ae2f | 676 | case WLAN_HT_CAP_SM_PS_DISABLED: |
9e5e6c32 | 677 | idle_cnt = (is_cam) ? active_cnt : IWL_NUM_IDLE_CHAINS_SINGLE; |
c7de35cd | 678 | break; |
00c5ae2f | 679 | case WLAN_HT_CAP_SM_PS_INVALID: |
c7de35cd | 680 | default: |
15b1687c | 681 | IWL_ERR(priv, "invalid mimo ps mode %d\n", |
12837be1 | 682 | priv->current_ht_config.sm_ps); |
28a6b07a TW |
683 | WARN_ON(1); |
684 | idle_cnt = -1; | |
c7de35cd RR |
685 | break; |
686 | } | |
28a6b07a | 687 | return idle_cnt; |
c7de35cd RR |
688 | } |
689 | ||
04816448 GE |
690 | /* up to 4 chains */ |
691 | static u8 iwl_count_chain_bitmap(u32 chain_bitmap) | |
692 | { | |
693 | u8 res; | |
694 | res = (chain_bitmap & BIT(0)) >> 0; | |
695 | res += (chain_bitmap & BIT(1)) >> 1; | |
696 | res += (chain_bitmap & BIT(2)) >> 2; | |
697 | res += (chain_bitmap & BIT(4)) >> 4; | |
698 | return res; | |
699 | } | |
700 | ||
4c4df78f CR |
701 | /** |
702 | * iwl_is_monitor_mode - Determine if interface in monitor mode | |
703 | * | |
704 | * priv->iw_mode is set in add_interface, but add_interface is | |
705 | * never called for monitor mode. The only way mac80211 informs us about | |
706 | * monitor mode is through configuring filters (call to configure_filter). | |
707 | */ | |
708 | static bool iwl_is_monitor_mode(struct iwl_priv *priv) | |
709 | { | |
710 | return !!(priv->staging_rxon.filter_flags & RXON_FILTER_PROMISC_MSK); | |
711 | } | |
712 | ||
c7de35cd RR |
713 | /** |
714 | * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image | |
715 | * | |
716 | * Selects how many and which Rx receivers/antennas/chains to use. | |
717 | * This should not be used for scan command ... it puts data in wrong place. | |
718 | */ | |
719 | void iwl_set_rxon_chain(struct iwl_priv *priv) | |
720 | { | |
28a6b07a TW |
721 | bool is_single = is_single_rx_stream(priv); |
722 | bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status); | |
04816448 GE |
723 | u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt; |
724 | u32 active_chains; | |
28a6b07a | 725 | u16 rx_chain; |
c7de35cd RR |
726 | |
727 | /* Tell uCode which antennas are actually connected. | |
728 | * Before first association, we assume all antennas are connected. | |
729 | * Just after first association, iwl_chain_noise_calibration() | |
730 | * checks which antennas actually *are* connected. */ | |
04816448 GE |
731 | if (priv->chain_noise_data.active_chains) |
732 | active_chains = priv->chain_noise_data.active_chains; | |
733 | else | |
734 | active_chains = priv->hw_params.valid_rx_ant; | |
735 | ||
736 | rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS; | |
c7de35cd RR |
737 | |
738 | /* How many receivers should we use? */ | |
28a6b07a TW |
739 | active_rx_cnt = iwl_get_active_rx_chain_count(priv); |
740 | idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt); | |
741 | ||
28a6b07a | 742 | |
04816448 GE |
743 | /* correct rx chain count according hw settings |
744 | * and chain noise calibration | |
745 | */ | |
746 | valid_rx_cnt = iwl_count_chain_bitmap(active_chains); | |
747 | if (valid_rx_cnt < active_rx_cnt) | |
748 | active_rx_cnt = valid_rx_cnt; | |
749 | ||
750 | if (valid_rx_cnt < idle_rx_cnt) | |
751 | idle_rx_cnt = valid_rx_cnt; | |
28a6b07a TW |
752 | |
753 | rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS; | |
754 | rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS; | |
755 | ||
756 | priv->staging_rxon.rx_chain = cpu_to_le16(rx_chain); | |
757 | ||
9e5e6c32 | 758 | if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam) |
c7de35cd RR |
759 | priv->staging_rxon.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK; |
760 | else | |
761 | priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK; | |
762 | ||
a33c2f47 | 763 | IWL_DEBUG_ASSOC("rx_chain=0x%X active=%d idle=%d\n", |
28a6b07a TW |
764 | priv->staging_rxon.rx_chain, |
765 | active_rx_cnt, idle_rx_cnt); | |
766 | ||
767 | WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 || | |
768 | active_rx_cnt < idle_rx_cnt); | |
c7de35cd RR |
769 | } |
770 | EXPORT_SYMBOL(iwl_set_rxon_chain); | |
bf85ea4f AK |
771 | |
772 | /** | |
17e72782 | 773 | * iwl_set_rxon_channel - Set the phymode and channel values in staging RXON |
bf85ea4f AK |
774 | * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz |
775 | * @channel: Any channel valid for the requested phymode | |
776 | ||
777 | * In addition to setting the staging RXON, priv->phymode is also set. | |
778 | * | |
779 | * NOTE: Does not commit to the hardware; it sets appropriate bit fields | |
780 | * in the staging RXON flag structure based on the phymode | |
781 | */ | |
17e72782 | 782 | int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch) |
bf85ea4f | 783 | { |
17e72782 TW |
784 | enum ieee80211_band band = ch->band; |
785 | u16 channel = ieee80211_frequency_to_channel(ch->center_freq); | |
786 | ||
8622e705 | 787 | if (!iwl_get_channel_info(priv, band, channel)) { |
bf85ea4f AK |
788 | IWL_DEBUG_INFO("Could not set channel to %d [%d]\n", |
789 | channel, band); | |
790 | return -EINVAL; | |
791 | } | |
792 | ||
793 | if ((le16_to_cpu(priv->staging_rxon.channel) == channel) && | |
794 | (priv->band == band)) | |
795 | return 0; | |
796 | ||
797 | priv->staging_rxon.channel = cpu_to_le16(channel); | |
798 | if (band == IEEE80211_BAND_5GHZ) | |
799 | priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK; | |
800 | else | |
801 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
802 | ||
803 | priv->band = band; | |
804 | ||
805 | IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, band); | |
806 | ||
807 | return 0; | |
808 | } | |
c7de35cd | 809 | EXPORT_SYMBOL(iwl_set_rxon_channel); |
bf85ea4f | 810 | |
6ba87956 | 811 | int iwl_setup_mac(struct iwl_priv *priv) |
bf85ea4f | 812 | { |
6ba87956 | 813 | int ret; |
bf85ea4f | 814 | struct ieee80211_hw *hw = priv->hw; |
e227ceac | 815 | hw->rate_control_algorithm = "iwl-agn-rs"; |
bf85ea4f | 816 | |
566bfe5a | 817 | /* Tell mac80211 our characteristics */ |
605a0bd6 | 818 | hw->flags = IEEE80211_HW_SIGNAL_DBM | |
8b30b1fe | 819 | IEEE80211_HW_NOISE_DBM | |
4be8c387 JB |
820 | IEEE80211_HW_AMPDU_AGGREGATION | |
821 | IEEE80211_HW_SUPPORTS_PS; | |
f59ac048 | 822 | hw->wiphy->interface_modes = |
f59ac048 LR |
823 | BIT(NL80211_IFTYPE_STATION) | |
824 | BIT(NL80211_IFTYPE_ADHOC); | |
ea4a82dc | 825 | |
2a44f911 | 826 | hw->wiphy->custom_regulatory = true; |
ea4a82dc | 827 | |
bf85ea4f AK |
828 | /* Default value; 4 EDCA QOS priorities */ |
829 | hw->queues = 4; | |
49779293 RR |
830 | /* queues to support 11n aggregation */ |
831 | if (priv->cfg->sku & IWL_SKU_N) | |
9f17b318 | 832 | hw->ampdu_queues = priv->cfg->mod_params->num_of_ampdu_queues; |
6ba87956 TW |
833 | |
834 | hw->conf.beacon_int = 100; | |
b5d7be5e | 835 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
6ba87956 TW |
836 | |
837 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) | |
838 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
839 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
840 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) | |
841 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
842 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
843 | ||
844 | ret = ieee80211_register_hw(priv->hw); | |
845 | if (ret) { | |
15b1687c | 846 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); |
6ba87956 TW |
847 | return ret; |
848 | } | |
849 | priv->mac80211_registered = 1; | |
850 | ||
851 | return 0; | |
bf85ea4f | 852 | } |
6ba87956 | 853 | EXPORT_SYMBOL(iwl_setup_mac); |
bf85ea4f | 854 | |
da154e30 RR |
855 | int iwl_set_hw_params(struct iwl_priv *priv) |
856 | { | |
857 | priv->hw_params.sw_crypto = priv->cfg->mod_params->sw_crypto; | |
858 | priv->hw_params.max_rxq_size = RX_QUEUE_SIZE; | |
859 | priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; | |
860 | if (priv->cfg->mod_params->amsdu_size_8K) | |
861 | priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_8K; | |
862 | else | |
863 | priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K; | |
864 | priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256; | |
865 | ||
49779293 RR |
866 | if (priv->cfg->mod_params->disable_11n) |
867 | priv->cfg->sku &= ~IWL_SKU_N; | |
868 | ||
da154e30 RR |
869 | /* Device-specific setup */ |
870 | return priv->cfg->ops->lib->set_hw_params(priv); | |
871 | } | |
872 | EXPORT_SYMBOL(iwl_set_hw_params); | |
6ba87956 TW |
873 | |
874 | int iwl_init_drv(struct iwl_priv *priv) | |
c7de35cd RR |
875 | { |
876 | int ret; | |
c7de35cd | 877 | |
c7de35cd RR |
878 | priv->ibss_beacon = NULL; |
879 | ||
880 | spin_lock_init(&priv->lock); | |
881 | spin_lock_init(&priv->power_data.lock); | |
882 | spin_lock_init(&priv->sta_lock); | |
883 | spin_lock_init(&priv->hcmd_lock); | |
c7de35cd | 884 | |
c7de35cd RR |
885 | INIT_LIST_HEAD(&priv->free_frames); |
886 | ||
887 | mutex_init(&priv->mutex); | |
888 | ||
889 | /* Clear the driver's (not device's) station table */ | |
37deb2a0 | 890 | iwl_clear_stations_table(priv); |
c7de35cd RR |
891 | |
892 | priv->data_retry_limit = -1; | |
893 | priv->ieee_channels = NULL; | |
894 | priv->ieee_rates = NULL; | |
895 | priv->band = IEEE80211_BAND_2GHZ; | |
896 | ||
05c914fe | 897 | priv->iw_mode = NL80211_IFTYPE_STATION; |
c7de35cd | 898 | |
12837be1 | 899 | priv->current_ht_config.sm_ps = WLAN_HT_CAP_SM_PS_DISABLED; |
c7de35cd RR |
900 | |
901 | /* Choose which receivers/antennas to use */ | |
902 | iwl_set_rxon_chain(priv); | |
f53696de | 903 | iwl_init_scan_params(priv); |
c7de35cd RR |
904 | |
905 | iwl_reset_qos(priv); | |
906 | ||
907 | priv->qos_data.qos_active = 0; | |
908 | priv->qos_data.qos_cap.val = 0; | |
909 | ||
c7de35cd RR |
910 | priv->rates_mask = IWL_RATES_MASK; |
911 | /* If power management is turned on, default to AC mode */ | |
912 | priv->power_mode = IWL_POWER_AC; | |
630fe9b6 | 913 | priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MAX; |
c7de35cd RR |
914 | |
915 | ret = iwl_init_channel_map(priv); | |
916 | if (ret) { | |
15b1687c | 917 | IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); |
c7de35cd RR |
918 | goto err; |
919 | } | |
920 | ||
921 | ret = iwlcore_init_geos(priv); | |
922 | if (ret) { | |
15b1687c | 923 | IWL_ERR(priv, "initializing geos failed: %d\n", ret); |
c7de35cd RR |
924 | goto err_free_channel_map; |
925 | } | |
926 | ||
c7de35cd RR |
927 | return 0; |
928 | ||
c7de35cd RR |
929 | err_free_channel_map: |
930 | iwl_free_channel_map(priv); | |
931 | err: | |
932 | return ret; | |
933 | } | |
6ba87956 | 934 | EXPORT_SYMBOL(iwl_init_drv); |
c7de35cd | 935 | |
630fe9b6 TW |
936 | int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force) |
937 | { | |
938 | int ret = 0; | |
939 | if (tx_power < IWL_TX_POWER_TARGET_POWER_MIN) { | |
39aadf8c | 940 | IWL_WARN(priv, "Requested user TXPOWER %d below limit.\n", |
630fe9b6 TW |
941 | priv->tx_power_user_lmt); |
942 | return -EINVAL; | |
943 | } | |
944 | ||
945 | if (tx_power > IWL_TX_POWER_TARGET_POWER_MAX) { | |
39aadf8c | 946 | IWL_WARN(priv, "Requested user TXPOWER %d above limit.\n", |
630fe9b6 TW |
947 | priv->tx_power_user_lmt); |
948 | return -EINVAL; | |
949 | } | |
950 | ||
951 | if (priv->tx_power_user_lmt != tx_power) | |
952 | force = true; | |
953 | ||
954 | priv->tx_power_user_lmt = tx_power; | |
955 | ||
956 | if (force && priv->cfg->ops->lib->send_tx_power) | |
957 | ret = priv->cfg->ops->lib->send_tx_power(priv); | |
958 | ||
959 | return ret; | |
960 | } | |
961 | EXPORT_SYMBOL(iwl_set_tx_power); | |
962 | ||
6ba87956 | 963 | void iwl_uninit_drv(struct iwl_priv *priv) |
bf85ea4f | 964 | { |
6e21f2c1 | 965 | iwl_calib_free_results(priv); |
6ba87956 TW |
966 | iwlcore_free_geos(priv); |
967 | iwl_free_channel_map(priv); | |
261415f7 | 968 | kfree(priv->scan); |
bf85ea4f | 969 | } |
6ba87956 | 970 | EXPORT_SYMBOL(iwl_uninit_drv); |
bf85ea4f | 971 | |
0ad91a35 WT |
972 | |
973 | void iwl_disable_interrupts(struct iwl_priv *priv) | |
974 | { | |
975 | clear_bit(STATUS_INT_ENABLED, &priv->status); | |
976 | ||
977 | /* disable interrupts from uCode/NIC to host */ | |
978 | iwl_write32(priv, CSR_INT_MASK, 0x00000000); | |
979 | ||
980 | /* acknowledge/clear/reset any interrupts still pending | |
981 | * from uCode or flow handler (Rx/Tx DMA) */ | |
982 | iwl_write32(priv, CSR_INT, 0xffffffff); | |
983 | iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff); | |
984 | IWL_DEBUG_ISR("Disabled interrupts\n"); | |
985 | } | |
986 | EXPORT_SYMBOL(iwl_disable_interrupts); | |
987 | ||
988 | void iwl_enable_interrupts(struct iwl_priv *priv) | |
989 | { | |
990 | IWL_DEBUG_ISR("Enabling interrupts\n"); | |
991 | set_bit(STATUS_INT_ENABLED, &priv->status); | |
992 | iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK); | |
993 | } | |
994 | EXPORT_SYMBOL(iwl_enable_interrupts); | |
995 | ||
49ea8596 EG |
996 | int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags) |
997 | { | |
998 | u32 stat_flags = 0; | |
999 | struct iwl_host_cmd cmd = { | |
1000 | .id = REPLY_STATISTICS_CMD, | |
1001 | .meta.flags = flags, | |
1002 | .len = sizeof(stat_flags), | |
1003 | .data = (u8 *) &stat_flags, | |
1004 | }; | |
1005 | return iwl_send_cmd(priv, &cmd); | |
1006 | } | |
1007 | EXPORT_SYMBOL(iwl_send_statistics_request); | |
7e8c519e | 1008 | |
b0692f2f EG |
1009 | /** |
1010 | * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host, | |
1011 | * using sample data 100 bytes apart. If these sample points are good, | |
1012 | * it's a pretty good bet that everything between them is good, too. | |
1013 | */ | |
1014 | static int iwlcore_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len) | |
1015 | { | |
1016 | u32 val; | |
1017 | int ret = 0; | |
1018 | u32 errcnt = 0; | |
1019 | u32 i; | |
1020 | ||
1021 | IWL_DEBUG_INFO("ucode inst image size is %u\n", len); | |
1022 | ||
1023 | ret = iwl_grab_nic_access(priv); | |
1024 | if (ret) | |
1025 | return ret; | |
1026 | ||
1027 | for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { | |
1028 | /* read data comes through single port, auto-incr addr */ | |
1029 | /* NOTE: Use the debugless read so we don't flood kernel log | |
1030 | * if IWL_DL_IO is set */ | |
1031 | iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, | |
250bdd21 | 1032 | i + IWL49_RTC_INST_LOWER_BOUND); |
b0692f2f EG |
1033 | val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
1034 | if (val != le32_to_cpu(*image)) { | |
1035 | ret = -EIO; | |
1036 | errcnt++; | |
1037 | if (errcnt >= 3) | |
1038 | break; | |
1039 | } | |
1040 | } | |
1041 | ||
1042 | iwl_release_nic_access(priv); | |
1043 | ||
1044 | return ret; | |
1045 | } | |
1046 | ||
1047 | /** | |
1048 | * iwlcore_verify_inst_full - verify runtime uCode image in card vs. host, | |
1049 | * looking at all data. | |
1050 | */ | |
1051 | static int iwl_verify_inst_full(struct iwl_priv *priv, __le32 *image, | |
1052 | u32 len) | |
1053 | { | |
1054 | u32 val; | |
1055 | u32 save_len = len; | |
1056 | int ret = 0; | |
1057 | u32 errcnt; | |
1058 | ||
1059 | IWL_DEBUG_INFO("ucode inst image size is %u\n", len); | |
1060 | ||
1061 | ret = iwl_grab_nic_access(priv); | |
1062 | if (ret) | |
1063 | return ret; | |
1064 | ||
250bdd21 SO |
1065 | iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
1066 | IWL49_RTC_INST_LOWER_BOUND); | |
b0692f2f EG |
1067 | |
1068 | errcnt = 0; | |
1069 | for (; len > 0; len -= sizeof(u32), image++) { | |
1070 | /* read data comes through single port, auto-incr addr */ | |
1071 | /* NOTE: Use the debugless read so we don't flood kernel log | |
1072 | * if IWL_DL_IO is set */ | |
1073 | val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); | |
1074 | if (val != le32_to_cpu(*image)) { | |
15b1687c | 1075 | IWL_ERR(priv, "uCode INST section is invalid at " |
b0692f2f EG |
1076 | "offset 0x%x, is 0x%x, s/b 0x%x\n", |
1077 | save_len - len, val, le32_to_cpu(*image)); | |
1078 | ret = -EIO; | |
1079 | errcnt++; | |
1080 | if (errcnt >= 20) | |
1081 | break; | |
1082 | } | |
1083 | } | |
1084 | ||
1085 | iwl_release_nic_access(priv); | |
1086 | ||
1087 | if (!errcnt) | |
1088 | IWL_DEBUG_INFO | |
1089 | ("ucode image in INSTRUCTION memory is good\n"); | |
1090 | ||
1091 | return ret; | |
1092 | } | |
1093 | ||
1094 | /** | |
1095 | * iwl_verify_ucode - determine which instruction image is in SRAM, | |
1096 | * and verify its contents | |
1097 | */ | |
1098 | int iwl_verify_ucode(struct iwl_priv *priv) | |
1099 | { | |
1100 | __le32 *image; | |
1101 | u32 len; | |
1102 | int ret; | |
1103 | ||
1104 | /* Try bootstrap */ | |
1105 | image = (__le32 *)priv->ucode_boot.v_addr; | |
1106 | len = priv->ucode_boot.len; | |
1107 | ret = iwlcore_verify_inst_sparse(priv, image, len); | |
1108 | if (!ret) { | |
1109 | IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n"); | |
1110 | return 0; | |
1111 | } | |
1112 | ||
1113 | /* Try initialize */ | |
1114 | image = (__le32 *)priv->ucode_init.v_addr; | |
1115 | len = priv->ucode_init.len; | |
1116 | ret = iwlcore_verify_inst_sparse(priv, image, len); | |
1117 | if (!ret) { | |
1118 | IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n"); | |
1119 | return 0; | |
1120 | } | |
1121 | ||
1122 | /* Try runtime/protocol */ | |
1123 | image = (__le32 *)priv->ucode_code.v_addr; | |
1124 | len = priv->ucode_code.len; | |
1125 | ret = iwlcore_verify_inst_sparse(priv, image, len); | |
1126 | if (!ret) { | |
1127 | IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n"); | |
1128 | return 0; | |
1129 | } | |
1130 | ||
15b1687c | 1131 | IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); |
b0692f2f EG |
1132 | |
1133 | /* Since nothing seems to match, show first several data entries in | |
1134 | * instruction SRAM, so maybe visual inspection will give a clue. | |
1135 | * Selection of bootstrap image (vs. other images) is arbitrary. */ | |
1136 | image = (__le32 *)priv->ucode_boot.v_addr; | |
1137 | len = priv->ucode_boot.len; | |
1138 | ret = iwl_verify_inst_full(priv, image, len); | |
1139 | ||
1140 | return ret; | |
1141 | } | |
1142 | EXPORT_SYMBOL(iwl_verify_ucode); | |
1143 | ||
56e12615 JS |
1144 | |
1145 | static const char *desc_lookup_text[] = { | |
1146 | "OK", | |
1147 | "FAIL", | |
1148 | "BAD_PARAM", | |
1149 | "BAD_CHECKSUM", | |
1150 | "NMI_INTERRUPT_WDG", | |
1151 | "SYSASSERT", | |
1152 | "FATAL_ERROR", | |
1153 | "BAD_COMMAND", | |
1154 | "HW_ERROR_TUNE_LOCK", | |
1155 | "HW_ERROR_TEMPERATURE", | |
1156 | "ILLEGAL_CHAN_FREQ", | |
1157 | "VCC_NOT_STABLE", | |
1158 | "FH_ERROR", | |
1159 | "NMI_INTERRUPT_HOST", | |
1160 | "NMI_INTERRUPT_ACTION_PT", | |
1161 | "NMI_INTERRUPT_UNKNOWN", | |
1162 | "UCODE_VERSION_MISMATCH", | |
1163 | "HW_ERROR_ABS_LOCK", | |
1164 | "HW_ERROR_CAL_LOCK_FAIL", | |
1165 | "NMI_INTERRUPT_INST_ACTION_PT", | |
1166 | "NMI_INTERRUPT_DATA_ACTION_PT", | |
1167 | "NMI_TRM_HW_ER", | |
1168 | "NMI_INTERRUPT_TRM", | |
1169 | "NMI_INTERRUPT_BREAK_POINT" | |
1170 | "DEBUG_0", | |
1171 | "DEBUG_1", | |
1172 | "DEBUG_2", | |
1173 | "DEBUG_3", | |
1174 | "UNKNOWN" | |
1175 | }; | |
1176 | ||
ede0cba4 EK |
1177 | static const char *desc_lookup(int i) |
1178 | { | |
56e12615 JS |
1179 | int max = ARRAY_SIZE(desc_lookup_text) - 1; |
1180 | ||
1181 | if (i < 0 || i > max) | |
1182 | i = max; | |
ede0cba4 | 1183 | |
56e12615 | 1184 | return desc_lookup_text[i]; |
ede0cba4 EK |
1185 | } |
1186 | ||
1187 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
1188 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
1189 | ||
1190 | void iwl_dump_nic_error_log(struct iwl_priv *priv) | |
1191 | { | |
1192 | u32 data2, line; | |
1193 | u32 desc, time, count, base, data1; | |
1194 | u32 blink1, blink2, ilink1, ilink2; | |
e1dfc085 | 1195 | int ret; |
ede0cba4 | 1196 | |
e1dfc085 GG |
1197 | if (priv->ucode_type == UCODE_INIT) |
1198 | base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr); | |
1199 | else | |
1200 | base = le32_to_cpu(priv->card_alive.error_event_table_ptr); | |
ede0cba4 EK |
1201 | |
1202 | if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { | |
15b1687c | 1203 | IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base); |
ede0cba4 EK |
1204 | return; |
1205 | } | |
1206 | ||
e1dfc085 GG |
1207 | ret = iwl_grab_nic_access(priv); |
1208 | if (ret) { | |
39aadf8c | 1209 | IWL_WARN(priv, "Can not read from adapter at this time.\n"); |
ede0cba4 EK |
1210 | return; |
1211 | } | |
1212 | ||
1213 | count = iwl_read_targ_mem(priv, base); | |
1214 | ||
1215 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { | |
15b1687c WT |
1216 | IWL_ERR(priv, "Start IWL Error Log Dump:\n"); |
1217 | IWL_ERR(priv, "Status: 0x%08lX, count: %d\n", | |
1218 | priv->status, count); | |
ede0cba4 EK |
1219 | } |
1220 | ||
1221 | desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32)); | |
1222 | blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32)); | |
1223 | blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32)); | |
1224 | ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32)); | |
1225 | ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32)); | |
1226 | data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32)); | |
1227 | data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32)); | |
1228 | line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32)); | |
1229 | time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32)); | |
1230 | ||
15b1687c | 1231 | IWL_ERR(priv, "Desc Time " |
ede0cba4 | 1232 | "data1 data2 line\n"); |
15b1687c | 1233 | IWL_ERR(priv, "%-28s (#%02d) %010u 0x%08X 0x%08X %u\n", |
ede0cba4 | 1234 | desc_lookup(desc), desc, time, data1, data2, line); |
15b1687c WT |
1235 | IWL_ERR(priv, "blink1 blink2 ilink1 ilink2\n"); |
1236 | IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2, | |
ede0cba4 EK |
1237 | ilink1, ilink2); |
1238 | ||
1239 | iwl_release_nic_access(priv); | |
1240 | } | |
1241 | EXPORT_SYMBOL(iwl_dump_nic_error_log); | |
1242 | ||
189a2b59 EK |
1243 | #define EVENT_START_OFFSET (4 * sizeof(u32)) |
1244 | ||
1245 | /** | |
1246 | * iwl_print_event_log - Dump error event log to syslog | |
1247 | * | |
a33c2f47 | 1248 | * NOTE: Must be called with iwl_grab_nic_access() already obtained! |
189a2b59 | 1249 | */ |
a33c2f47 | 1250 | static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, |
189a2b59 EK |
1251 | u32 num_events, u32 mode) |
1252 | { | |
1253 | u32 i; | |
1254 | u32 base; /* SRAM byte address of event log header */ | |
1255 | u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ | |
1256 | u32 ptr; /* SRAM byte address of log data */ | |
1257 | u32 ev, time, data; /* event log data */ | |
1258 | ||
1259 | if (num_events == 0) | |
1260 | return; | |
e1dfc085 GG |
1261 | if (priv->ucode_type == UCODE_INIT) |
1262 | base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); | |
1263 | else | |
1264 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
189a2b59 EK |
1265 | |
1266 | if (mode == 0) | |
1267 | event_size = 2 * sizeof(u32); | |
1268 | else | |
1269 | event_size = 3 * sizeof(u32); | |
1270 | ||
1271 | ptr = base + EVENT_START_OFFSET + (start_idx * event_size); | |
1272 | ||
1273 | /* "time" is actually "data" for mode 0 (no timestamp). | |
1274 | * place event id # at far right for easier visual parsing. */ | |
1275 | for (i = 0; i < num_events; i++) { | |
1276 | ev = iwl_read_targ_mem(priv, ptr); | |
1277 | ptr += sizeof(u32); | |
1278 | time = iwl_read_targ_mem(priv, ptr); | |
1279 | ptr += sizeof(u32); | |
77c5d08e TW |
1280 | if (mode == 0) { |
1281 | /* data, ev */ | |
15b1687c | 1282 | IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", time, ev); |
77c5d08e | 1283 | } else { |
189a2b59 EK |
1284 | data = iwl_read_targ_mem(priv, ptr); |
1285 | ptr += sizeof(u32); | |
15b1687c | 1286 | IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n", |
77c5d08e | 1287 | time, data, ev); |
189a2b59 EK |
1288 | } |
1289 | } | |
1290 | } | |
189a2b59 EK |
1291 | |
1292 | void iwl_dump_nic_event_log(struct iwl_priv *priv) | |
1293 | { | |
e1dfc085 | 1294 | int ret; |
189a2b59 EK |
1295 | u32 base; /* SRAM byte address of event log header */ |
1296 | u32 capacity; /* event log capacity in # entries */ | |
1297 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
1298 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
1299 | u32 next_entry; /* index of next entry to be written by uCode */ | |
1300 | u32 size; /* # entries that we'll print */ | |
1301 | ||
e1dfc085 GG |
1302 | if (priv->ucode_type == UCODE_INIT) |
1303 | base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); | |
1304 | else | |
1305 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
1306 | ||
189a2b59 | 1307 | if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { |
15b1687c | 1308 | IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base); |
189a2b59 EK |
1309 | return; |
1310 | } | |
1311 | ||
e1dfc085 GG |
1312 | ret = iwl_grab_nic_access(priv); |
1313 | if (ret) { | |
39aadf8c | 1314 | IWL_WARN(priv, "Can not read from adapter at this time.\n"); |
189a2b59 EK |
1315 | return; |
1316 | } | |
1317 | ||
1318 | /* event log header */ | |
1319 | capacity = iwl_read_targ_mem(priv, base); | |
1320 | mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
1321 | num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
1322 | next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
1323 | ||
1324 | size = num_wraps ? capacity : next_entry; | |
1325 | ||
1326 | /* bail out if nothing in log */ | |
1327 | if (size == 0) { | |
15b1687c | 1328 | IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n"); |
189a2b59 EK |
1329 | iwl_release_nic_access(priv); |
1330 | return; | |
1331 | } | |
1332 | ||
15b1687c | 1333 | IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n", |
189a2b59 EK |
1334 | size, num_wraps); |
1335 | ||
1336 | /* if uCode has wrapped back to top of log, start at the oldest entry, | |
1337 | * i.e the next one that uCode would fill. */ | |
1338 | if (num_wraps) | |
1339 | iwl_print_event_log(priv, next_entry, | |
1340 | capacity - next_entry, mode); | |
1341 | /* (then/else) start at top of log */ | |
1342 | iwl_print_event_log(priv, 0, next_entry, mode); | |
1343 | ||
1344 | iwl_release_nic_access(priv); | |
1345 | } | |
1346 | EXPORT_SYMBOL(iwl_dump_nic_event_log); | |
1347 | ||
47f4a587 EG |
1348 | void iwl_rf_kill_ct_config(struct iwl_priv *priv) |
1349 | { | |
1350 | struct iwl_ct_kill_config cmd; | |
1351 | unsigned long flags; | |
1352 | int ret = 0; | |
1353 | ||
1354 | spin_lock_irqsave(&priv->lock, flags); | |
1355 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
1356 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); | |
1357 | spin_unlock_irqrestore(&priv->lock, flags); | |
1358 | ||
1359 | cmd.critical_temperature_R = | |
1360 | cpu_to_le32(priv->hw_params.ct_kill_threshold); | |
189a2b59 | 1361 | |
47f4a587 EG |
1362 | ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, |
1363 | sizeof(cmd), &cmd); | |
1364 | if (ret) | |
15b1687c | 1365 | IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); |
47f4a587 EG |
1366 | else |
1367 | IWL_DEBUG_INFO("REPLY_CT_KILL_CONFIG_CMD succeeded, " | |
1368 | "critical temperature is %d\n", | |
1369 | cmd.critical_temperature_R); | |
1370 | } | |
1371 | EXPORT_SYMBOL(iwl_rf_kill_ct_config); | |
14a08a7f | 1372 | |
0ad91a35 | 1373 | |
14a08a7f EG |
1374 | /* |
1375 | * CARD_STATE_CMD | |
1376 | * | |
1377 | * Use: Sets the device's internal card state to enable, disable, or halt | |
1378 | * | |
1379 | * When in the 'enable' state the card operates as normal. | |
1380 | * When in the 'disable' state, the card enters into a low power mode. | |
1381 | * When in the 'halt' state, the card is shut down and must be fully | |
1382 | * restarted to come back on. | |
1383 | */ | |
c496294e | 1384 | int iwl_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag) |
14a08a7f EG |
1385 | { |
1386 | struct iwl_host_cmd cmd = { | |
1387 | .id = REPLY_CARD_STATE_CMD, | |
1388 | .len = sizeof(u32), | |
1389 | .data = &flags, | |
1390 | .meta.flags = meta_flag, | |
1391 | }; | |
1392 | ||
1393 | return iwl_send_cmd(priv, &cmd); | |
1394 | } | |
c496294e | 1395 | EXPORT_SYMBOL(iwl_send_card_state); |
14a08a7f EG |
1396 | |
1397 | void iwl_radio_kill_sw_disable_radio(struct iwl_priv *priv) | |
1398 | { | |
1399 | unsigned long flags; | |
1400 | ||
1401 | if (test_bit(STATUS_RF_KILL_SW, &priv->status)) | |
1402 | return; | |
1403 | ||
1404 | IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO OFF\n"); | |
1405 | ||
1406 | iwl_scan_cancel(priv); | |
1407 | /* FIXME: This is a workaround for AP */ | |
05c914fe | 1408 | if (priv->iw_mode != NL80211_IFTYPE_AP) { |
14a08a7f EG |
1409 | spin_lock_irqsave(&priv->lock, flags); |
1410 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, | |
1411 | CSR_UCODE_SW_BIT_RFKILL); | |
1412 | spin_unlock_irqrestore(&priv->lock, flags); | |
1413 | /* call the host command only if no hw rf-kill set */ | |
1414 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status) && | |
1415 | iwl_is_ready(priv)) | |
1416 | iwl_send_card_state(priv, | |
1417 | CARD_STATE_CMD_DISABLE, 0); | |
1418 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
1419 | /* make sure mac80211 stop sending Tx frame */ | |
1420 | if (priv->mac80211_registered) | |
1421 | ieee80211_stop_queues(priv->hw); | |
1422 | } | |
1423 | } | |
1424 | EXPORT_SYMBOL(iwl_radio_kill_sw_disable_radio); | |
1425 | ||
1426 | int iwl_radio_kill_sw_enable_radio(struct iwl_priv *priv) | |
1427 | { | |
1428 | unsigned long flags; | |
1429 | ||
1430 | if (!test_bit(STATUS_RF_KILL_SW, &priv->status)) | |
1431 | return 0; | |
1432 | ||
1433 | IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO ON\n"); | |
1434 | ||
1435 | spin_lock_irqsave(&priv->lock, flags); | |
1436 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
1437 | ||
a9efa652 EG |
1438 | /* If the driver is up it will receive CARD_STATE_NOTIFICATION |
1439 | * notification where it will clear SW rfkill status. | |
1440 | * Setting it here would break the handler. Only if the | |
1441 | * interface is down we can set here since we don't | |
1442 | * receive any further notification. | |
1443 | */ | |
1444 | if (!priv->is_open) | |
1445 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
14a08a7f EG |
1446 | spin_unlock_irqrestore(&priv->lock, flags); |
1447 | ||
1448 | /* wake up ucode */ | |
1449 | msleep(10); | |
1450 | ||
1451 | spin_lock_irqsave(&priv->lock, flags); | |
1452 | iwl_read32(priv, CSR_UCODE_DRV_GP1); | |
1453 | if (!iwl_grab_nic_access(priv)) | |
1454 | iwl_release_nic_access(priv); | |
1455 | spin_unlock_irqrestore(&priv->lock, flags); | |
1456 | ||
1457 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { | |
1458 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
1459 | "disabled by HW switch\n"); | |
1460 | return 0; | |
1461 | } | |
1462 | ||
edb34228 MA |
1463 | /* when driver is up while rfkill is on, it wont receive |
1464 | * any CARD_STATE_NOTIFICATION notifications so we have to | |
1465 | * restart it in here | |
1466 | */ | |
1467 | if (priv->is_open && !test_bit(STATUS_ALIVE, &priv->status)) { | |
1468 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
1469 | if (!iwl_is_rfkill(priv)) | |
1470 | queue_work(priv->workqueue, &priv->up); | |
1471 | } | |
1472 | ||
a9efa652 EG |
1473 | /* If the driver is already loaded, it will receive |
1474 | * CARD_STATE_NOTIFICATION notifications and the handler will | |
1475 | * call restart to reload the driver. | |
1476 | */ | |
14a08a7f EG |
1477 | return 1; |
1478 | } | |
1479 | EXPORT_SYMBOL(iwl_radio_kill_sw_enable_radio); | |
c0af96a6 SO |
1480 | |
1481 | void iwl_bg_rf_kill(struct work_struct *work) | |
1482 | { | |
1483 | struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill); | |
1484 | ||
1485 | wake_up_interruptible(&priv->wait_command_queue); | |
1486 | ||
1487 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
1488 | return; | |
1489 | ||
1490 | mutex_lock(&priv->mutex); | |
1491 | ||
1492 | if (!iwl_is_rfkill(priv)) { | |
1493 | IWL_DEBUG(IWL_DL_RF_KILL, | |
1494 | "HW and/or SW RF Kill no longer active, restarting " | |
1495 | "device\n"); | |
1496 | if (!test_bit(STATUS_EXIT_PENDING, &priv->status) && | |
1497 | test_bit(STATUS_ALIVE, &priv->status)) | |
1498 | queue_work(priv->workqueue, &priv->restart); | |
1499 | } else { | |
1500 | /* make sure mac80211 stop sending Tx frame */ | |
1501 | if (priv->mac80211_registered) | |
1502 | ieee80211_stop_queues(priv->hw); | |
1503 | ||
1504 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
1505 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
1506 | "disabled by SW switch\n"); | |
1507 | else | |
1508 | IWL_WARN(priv, "Radio Frequency Kill Switch is On:\n" | |
1509 | "Kill switch must be turned off for " | |
1510 | "wireless networking to work.\n"); | |
1511 | } | |
1512 | mutex_unlock(&priv->mutex); | |
1513 | iwl_rfkill_set_hw_state(priv); | |
1514 | } | |
1515 | EXPORT_SYMBOL(iwl_bg_rf_kill); |