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df48c323 | 1 | /****************************************************************************** |
df48c323 TW |
2 | * |
3 | * GPL LICENSE SUMMARY | |
4 | * | |
5 | * Copyright(c) 2008 Intel Corporation. All rights reserved. | |
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: | |
25 | * Tomas Winkler <tomas.winkler@intel.com> | |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
27 | *****************************************************************************/ | |
28 | ||
29 | #include <linux/kernel.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/version.h> | |
1d0a082d | 32 | #include <net/mac80211.h> |
df48c323 | 33 | |
712b6cf5 | 34 | struct iwl_priv; /* FIXME: remove */ |
0a6857e7 | 35 | #include "iwl-debug.h" |
6bc913bd | 36 | #include "iwl-eeprom.h" |
3e0d4cb1 | 37 | #include "iwl-dev.h" /* FIXME: remove */ |
df48c323 | 38 | #include "iwl-core.h" |
b661c819 | 39 | #include "iwl-io.h" |
ad97edd2 | 40 | #include "iwl-rfkill.h" |
5da4b55f | 41 | #include "iwl-power.h" |
df48c323 | 42 | |
1d0a082d | 43 | |
df48c323 TW |
44 | MODULE_DESCRIPTION("iwl core"); |
45 | MODULE_VERSION(IWLWIFI_VERSION); | |
46 | MODULE_AUTHOR(DRV_COPYRIGHT); | |
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, | |
92 | struct ieee80211_tx_info *control) | |
93 | { | |
94 | int rate_index; | |
95 | ||
96 | control->antenna_sel_tx = | |
97 | ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); | |
98 | if (rate_n_flags & RATE_MCS_HT_MSK) | |
99 | control->flags |= IEEE80211_TX_CTL_OFDM_HT; | |
100 | if (rate_n_flags & RATE_MCS_GF_MSK) | |
101 | control->flags |= IEEE80211_TX_CTL_GREEN_FIELD; | |
102 | if (rate_n_flags & RATE_MCS_FAT_MSK) | |
103 | control->flags |= IEEE80211_TX_CTL_40_MHZ_WIDTH; | |
104 | if (rate_n_flags & RATE_MCS_DUP_MSK) | |
105 | control->flags |= IEEE80211_TX_CTL_DUP_DATA; | |
106 | if (rate_n_flags & RATE_MCS_SGI_MSK) | |
107 | control->flags |= IEEE80211_TX_CTL_SHORT_GI; | |
108 | rate_index = iwl_hwrate_to_plcp_idx(rate_n_flags); | |
109 | if (control->band == IEEE80211_BAND_5GHZ) | |
110 | rate_index -= IWL_FIRST_OFDM_RATE; | |
111 | control->tx_rate_idx = rate_index; | |
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 | ||
123 | if (idx >= IWL_RATE_MIMO2_6M_PLCP) | |
124 | idx = idx - IWL_RATE_MIMO2_6M_PLCP; | |
125 | ||
126 | idx += IWL_FIRST_OFDM_RATE; | |
127 | /* skip 9M not supported in ht*/ | |
128 | if (idx >= IWL_RATE_9M_INDEX) | |
129 | idx += 1; | |
130 | if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE)) | |
131 | return idx; | |
132 | ||
133 | /* legacy rate format, search for match in table */ | |
134 | } else { | |
135 | for (idx = 0; idx < ARRAY_SIZE(iwl_rates); idx++) | |
136 | if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF)) | |
137 | return idx; | |
138 | } | |
139 | ||
140 | return -1; | |
141 | } | |
142 | EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx); | |
143 | ||
144 | ||
57bd1bea TW |
145 | |
146 | const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; | |
147 | EXPORT_SYMBOL(iwl_bcast_addr); | |
148 | ||
149 | ||
1d0a082d AK |
150 | /* This function both allocates and initializes hw and priv. */ |
151 | struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg, | |
152 | struct ieee80211_ops *hw_ops) | |
153 | { | |
154 | struct iwl_priv *priv; | |
155 | ||
156 | /* mac80211 allocates memory for this device instance, including | |
157 | * space for this driver's private structure */ | |
158 | struct ieee80211_hw *hw = | |
159 | ieee80211_alloc_hw(sizeof(struct iwl_priv), hw_ops); | |
160 | if (hw == NULL) { | |
161 | IWL_ERROR("Can not allocate network device\n"); | |
162 | goto out; | |
163 | } | |
164 | ||
165 | priv = hw->priv; | |
166 | priv->hw = hw; | |
167 | ||
168 | out: | |
169 | return hw; | |
170 | } | |
171 | EXPORT_SYMBOL(iwl_alloc_all); | |
172 | ||
b661c819 TW |
173 | void iwl_hw_detect(struct iwl_priv *priv) |
174 | { | |
175 | priv->hw_rev = _iwl_read32(priv, CSR_HW_REV); | |
176 | priv->hw_wa_rev = _iwl_read32(priv, CSR_HW_REV_WA_REG); | |
177 | pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &priv->rev_id); | |
178 | } | |
179 | EXPORT_SYMBOL(iwl_hw_detect); | |
180 | ||
1053d35f RR |
181 | /* Tell nic where to find the "keep warm" buffer */ |
182 | int iwl_kw_init(struct iwl_priv *priv) | |
183 | { | |
184 | unsigned long flags; | |
185 | int ret; | |
186 | ||
187 | spin_lock_irqsave(&priv->lock, flags); | |
188 | ret = iwl_grab_nic_access(priv); | |
189 | if (ret) | |
190 | goto out; | |
191 | ||
192 | iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, | |
193 | priv->kw.dma_addr >> 4); | |
194 | iwl_release_nic_access(priv); | |
195 | out: | |
196 | spin_unlock_irqrestore(&priv->lock, flags); | |
197 | return ret; | |
198 | } | |
199 | ||
200 | int iwl_kw_alloc(struct iwl_priv *priv) | |
201 | { | |
202 | struct pci_dev *dev = priv->pci_dev; | |
16466903 | 203 | struct iwl_kw *kw = &priv->kw; |
1053d35f | 204 | |
16466903 | 205 | kw->size = IWL_KW_SIZE; |
1053d35f RR |
206 | kw->v_addr = pci_alloc_consistent(dev, kw->size, &kw->dma_addr); |
207 | if (!kw->v_addr) | |
208 | return -ENOMEM; | |
209 | ||
210 | return 0; | |
211 | } | |
212 | ||
213 | /** | |
214 | * iwl_kw_free - Free the "keep warm" buffer | |
215 | */ | |
216 | void iwl_kw_free(struct iwl_priv *priv) | |
217 | { | |
218 | struct pci_dev *dev = priv->pci_dev; | |
16466903 | 219 | struct iwl_kw *kw = &priv->kw; |
1053d35f RR |
220 | |
221 | if (kw->v_addr) { | |
222 | pci_free_consistent(dev, kw->size, kw->v_addr, kw->dma_addr); | |
223 | memset(kw, 0, sizeof(*kw)); | |
224 | } | |
225 | } | |
226 | ||
227 | int iwl_hw_nic_init(struct iwl_priv *priv) | |
228 | { | |
229 | unsigned long flags; | |
230 | struct iwl_rx_queue *rxq = &priv->rxq; | |
231 | int ret; | |
232 | ||
233 | /* nic_init */ | |
1053d35f | 234 | spin_lock_irqsave(&priv->lock, flags); |
1b73af82 | 235 | priv->cfg->ops->lib->apm_ops.init(priv); |
1053d35f RR |
236 | iwl_write32(priv, CSR_INT_COALESCING, 512 / 32); |
237 | spin_unlock_irqrestore(&priv->lock, flags); | |
238 | ||
239 | ret = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN); | |
240 | ||
241 | priv->cfg->ops->lib->apm_ops.config(priv); | |
242 | ||
243 | /* Allocate the RX queue, or reset if it is already allocated */ | |
244 | if (!rxq->bd) { | |
245 | ret = iwl_rx_queue_alloc(priv); | |
246 | if (ret) { | |
247 | IWL_ERROR("Unable to initialize Rx queue\n"); | |
248 | return -ENOMEM; | |
249 | } | |
250 | } else | |
251 | iwl_rx_queue_reset(priv, rxq); | |
252 | ||
253 | iwl_rx_replenish(priv); | |
254 | ||
255 | iwl_rx_init(priv, rxq); | |
256 | ||
257 | spin_lock_irqsave(&priv->lock, flags); | |
258 | ||
259 | rxq->need_update = 1; | |
260 | iwl_rx_queue_update_write_ptr(priv, rxq); | |
261 | ||
262 | spin_unlock_irqrestore(&priv->lock, flags); | |
263 | ||
264 | /* Allocate and init all Tx and Command queues */ | |
265 | ret = iwl_txq_ctx_reset(priv); | |
266 | if (ret) | |
267 | return ret; | |
268 | ||
269 | set_bit(STATUS_INIT, &priv->status); | |
270 | ||
271 | return 0; | |
272 | } | |
273 | EXPORT_SYMBOL(iwl_hw_nic_init); | |
274 | ||
bf85ea4f | 275 | /** |
37deb2a0 | 276 | * iwl_clear_stations_table - Clear the driver's station table |
bf85ea4f AK |
277 | * |
278 | * NOTE: This does not clear or otherwise alter the device's station table. | |
279 | */ | |
37deb2a0 | 280 | void iwl_clear_stations_table(struct iwl_priv *priv) |
bf85ea4f AK |
281 | { |
282 | unsigned long flags; | |
283 | ||
284 | spin_lock_irqsave(&priv->sta_lock, flags); | |
285 | ||
24e5c401 | 286 | if (iwl_is_alive(priv) && |
37deb2a0 EG |
287 | !test_bit(STATUS_EXIT_PENDING, &priv->status) && |
288 | iwl_send_cmd_pdu_async(priv, REPLY_REMOVE_ALL_STA, 0, NULL, NULL)) | |
24e5c401 EG |
289 | IWL_ERROR("Couldn't clear the station table\n"); |
290 | ||
37deb2a0 | 291 | priv->num_stations = 0; |
bf85ea4f AK |
292 | memset(priv->stations, 0, sizeof(priv->stations)); |
293 | ||
294 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
295 | } | |
37deb2a0 | 296 | EXPORT_SYMBOL(iwl_clear_stations_table); |
bf85ea4f | 297 | |
c7de35cd | 298 | void iwl_reset_qos(struct iwl_priv *priv) |
bf85ea4f AK |
299 | { |
300 | u16 cw_min = 15; | |
301 | u16 cw_max = 1023; | |
302 | u8 aifs = 2; | |
303 | u8 is_legacy = 0; | |
304 | unsigned long flags; | |
305 | int i; | |
306 | ||
307 | spin_lock_irqsave(&priv->lock, flags); | |
308 | priv->qos_data.qos_active = 0; | |
309 | ||
310 | if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) { | |
311 | if (priv->qos_data.qos_enable) | |
312 | priv->qos_data.qos_active = 1; | |
313 | if (!(priv->active_rate & 0xfff0)) { | |
314 | cw_min = 31; | |
315 | is_legacy = 1; | |
316 | } | |
317 | } else if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { | |
318 | if (priv->qos_data.qos_enable) | |
319 | priv->qos_data.qos_active = 1; | |
320 | } else if (!(priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK)) { | |
321 | cw_min = 31; | |
322 | is_legacy = 1; | |
323 | } | |
324 | ||
325 | if (priv->qos_data.qos_active) | |
326 | aifs = 3; | |
327 | ||
328 | priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min); | |
329 | priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max); | |
330 | priv->qos_data.def_qos_parm.ac[0].aifsn = aifs; | |
331 | priv->qos_data.def_qos_parm.ac[0].edca_txop = 0; | |
332 | priv->qos_data.def_qos_parm.ac[0].reserved1 = 0; | |
333 | ||
334 | if (priv->qos_data.qos_active) { | |
335 | i = 1; | |
336 | priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min); | |
337 | priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max); | |
338 | priv->qos_data.def_qos_parm.ac[i].aifsn = 7; | |
339 | priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; | |
340 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
341 | ||
342 | i = 2; | |
343 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
344 | cpu_to_le16((cw_min + 1) / 2 - 1); | |
345 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
346 | cpu_to_le16(cw_max); | |
347 | priv->qos_data.def_qos_parm.ac[i].aifsn = 2; | |
348 | if (is_legacy) | |
349 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
350 | cpu_to_le16(6016); | |
351 | else | |
352 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
353 | cpu_to_le16(3008); | |
354 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
355 | ||
356 | i = 3; | |
357 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
358 | cpu_to_le16((cw_min + 1) / 4 - 1); | |
359 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
360 | cpu_to_le16((cw_max + 1) / 2 - 1); | |
361 | priv->qos_data.def_qos_parm.ac[i].aifsn = 2; | |
362 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
363 | if (is_legacy) | |
364 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
365 | cpu_to_le16(3264); | |
366 | else | |
367 | priv->qos_data.def_qos_parm.ac[i].edca_txop = | |
368 | cpu_to_le16(1504); | |
369 | } else { | |
370 | for (i = 1; i < 4; i++) { | |
371 | priv->qos_data.def_qos_parm.ac[i].cw_min = | |
372 | cpu_to_le16(cw_min); | |
373 | priv->qos_data.def_qos_parm.ac[i].cw_max = | |
374 | cpu_to_le16(cw_max); | |
375 | priv->qos_data.def_qos_parm.ac[i].aifsn = aifs; | |
376 | priv->qos_data.def_qos_parm.ac[i].edca_txop = 0; | |
377 | priv->qos_data.def_qos_parm.ac[i].reserved1 = 0; | |
378 | } | |
379 | } | |
380 | IWL_DEBUG_QOS("set QoS to default \n"); | |
381 | ||
382 | spin_unlock_irqrestore(&priv->lock, flags); | |
383 | } | |
c7de35cd RR |
384 | EXPORT_SYMBOL(iwl_reset_qos); |
385 | ||
39130df3 RR |
386 | #define MAX_BIT_RATE_40_MHZ 0x96; /* 150 Mbps */ |
387 | #define MAX_BIT_RATE_20_MHZ 0x48; /* 72 Mbps */ | |
c7de35cd RR |
388 | static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv, |
389 | struct ieee80211_ht_info *ht_info, | |
390 | enum ieee80211_band band) | |
391 | { | |
39130df3 RR |
392 | u16 max_bit_rate = 0; |
393 | u8 rx_chains_num = priv->hw_params.rx_chains_num; | |
394 | u8 tx_chains_num = priv->hw_params.tx_chains_num; | |
395 | ||
c7de35cd RR |
396 | ht_info->cap = 0; |
397 | memset(ht_info->supp_mcs_set, 0, 16); | |
398 | ||
399 | ht_info->ht_supported = 1; | |
400 | ||
39130df3 RR |
401 | ht_info->cap |= (u16)IEEE80211_HT_CAP_GRN_FLD; |
402 | ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_20; | |
403 | ht_info->cap |= (u16)(IEEE80211_HT_CAP_MIMO_PS & | |
404 | (IWL_MIMO_PS_NONE << 2)); | |
405 | ||
406 | max_bit_rate = MAX_BIT_RATE_20_MHZ; | |
c7de35cd RR |
407 | if (priv->hw_params.fat_channel & BIT(band)) { |
408 | ht_info->cap |= (u16)IEEE80211_HT_CAP_SUP_WIDTH; | |
409 | ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_40; | |
410 | ht_info->supp_mcs_set[4] = 0x01; | |
39130df3 | 411 | max_bit_rate = MAX_BIT_RATE_40_MHZ; |
c7de35cd | 412 | } |
c7de35cd RR |
413 | |
414 | if (priv->cfg->mod_params->amsdu_size_8K) | |
415 | ht_info->cap |= (u16)IEEE80211_HT_CAP_MAX_AMSDU; | |
416 | ||
417 | ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF; | |
418 | ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF; | |
419 | ||
420 | ht_info->supp_mcs_set[0] = 0xFF; | |
39130df3 | 421 | if (rx_chains_num >= 2) |
c7de35cd | 422 | ht_info->supp_mcs_set[1] = 0xFF; |
39130df3 | 423 | if (rx_chains_num >= 3) |
c7de35cd | 424 | ht_info->supp_mcs_set[2] = 0xFF; |
39130df3 RR |
425 | |
426 | /* Highest supported Rx data rate */ | |
427 | max_bit_rate *= rx_chains_num; | |
428 | ht_info->supp_mcs_set[10] = (u8)(max_bit_rate & 0x00FF); | |
429 | ht_info->supp_mcs_set[11] = (u8)((max_bit_rate & 0xFF00) >> 8); | |
430 | ||
431 | /* Tx MCS capabilities */ | |
432 | ht_info->supp_mcs_set[12] = IEEE80211_HT_CAP_MCS_TX_DEFINED; | |
433 | if (tx_chains_num != rx_chains_num) { | |
434 | ht_info->supp_mcs_set[12] |= IEEE80211_HT_CAP_MCS_TX_RX_DIFF; | |
435 | ht_info->supp_mcs_set[12] |= ((tx_chains_num - 1) << 2); | |
436 | } | |
c7de35cd | 437 | } |
c7de35cd RR |
438 | |
439 | static void iwlcore_init_hw_rates(struct iwl_priv *priv, | |
440 | struct ieee80211_rate *rates) | |
441 | { | |
442 | int i; | |
443 | ||
444 | for (i = 0; i < IWL_RATE_COUNT; i++) { | |
1826dcc0 | 445 | rates[i].bitrate = iwl_rates[i].ieee * 5; |
c7de35cd RR |
446 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ |
447 | rates[i].hw_value_short = i; | |
448 | rates[i].flags = 0; | |
449 | if ((i > IWL_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) { | |
450 | /* | |
451 | * If CCK != 1M then set short preamble rate flag. | |
452 | */ | |
453 | rates[i].flags |= | |
1826dcc0 | 454 | (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ? |
c7de35cd RR |
455 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
456 | } | |
457 | } | |
458 | } | |
459 | ||
460 | /** | |
461 | * iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom | |
462 | */ | |
463 | static int iwlcore_init_geos(struct iwl_priv *priv) | |
464 | { | |
465 | struct iwl_channel_info *ch; | |
466 | struct ieee80211_supported_band *sband; | |
467 | struct ieee80211_channel *channels; | |
468 | struct ieee80211_channel *geo_ch; | |
469 | struct ieee80211_rate *rates; | |
470 | int i = 0; | |
471 | ||
472 | if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates || | |
473 | priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) { | |
474 | IWL_DEBUG_INFO("Geography modes already initialized.\n"); | |
475 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
476 | return 0; | |
477 | } | |
478 | ||
479 | channels = kzalloc(sizeof(struct ieee80211_channel) * | |
480 | priv->channel_count, GFP_KERNEL); | |
481 | if (!channels) | |
482 | return -ENOMEM; | |
483 | ||
484 | rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)), | |
485 | GFP_KERNEL); | |
486 | if (!rates) { | |
487 | kfree(channels); | |
488 | return -ENOMEM; | |
489 | } | |
490 | ||
491 | /* 5.2GHz channels start after the 2.4GHz channels */ | |
492 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; | |
493 | sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)]; | |
494 | /* just OFDM */ | |
495 | sband->bitrates = &rates[IWL_FIRST_OFDM_RATE]; | |
496 | sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE; | |
497 | ||
49779293 RR |
498 | if (priv->cfg->sku & IWL_SKU_N) |
499 | iwlcore_init_ht_hw_capab(priv, &sband->ht_info, | |
500 | IEEE80211_BAND_5GHZ); | |
c7de35cd RR |
501 | |
502 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; | |
503 | sband->channels = channels; | |
504 | /* OFDM & CCK */ | |
505 | sband->bitrates = rates; | |
506 | sband->n_bitrates = IWL_RATE_COUNT; | |
507 | ||
49779293 RR |
508 | if (priv->cfg->sku & IWL_SKU_N) |
509 | iwlcore_init_ht_hw_capab(priv, &sband->ht_info, | |
510 | IEEE80211_BAND_2GHZ); | |
c7de35cd RR |
511 | |
512 | priv->ieee_channels = channels; | |
513 | priv->ieee_rates = rates; | |
514 | ||
515 | iwlcore_init_hw_rates(priv, rates); | |
516 | ||
517 | for (i = 0; i < priv->channel_count; i++) { | |
518 | ch = &priv->channel_info[i]; | |
519 | ||
520 | /* FIXME: might be removed if scan is OK */ | |
521 | if (!is_channel_valid(ch)) | |
522 | continue; | |
523 | ||
524 | if (is_channel_a_band(ch)) | |
525 | sband = &priv->bands[IEEE80211_BAND_5GHZ]; | |
526 | else | |
527 | sband = &priv->bands[IEEE80211_BAND_2GHZ]; | |
528 | ||
529 | geo_ch = &sband->channels[sband->n_channels++]; | |
530 | ||
531 | geo_ch->center_freq = | |
532 | ieee80211_channel_to_frequency(ch->channel); | |
533 | geo_ch->max_power = ch->max_power_avg; | |
534 | geo_ch->max_antenna_gain = 0xff; | |
535 | geo_ch->hw_value = ch->channel; | |
536 | ||
537 | if (is_channel_valid(ch)) { | |
538 | if (!(ch->flags & EEPROM_CHANNEL_IBSS)) | |
539 | geo_ch->flags |= IEEE80211_CHAN_NO_IBSS; | |
540 | ||
541 | if (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) | |
542 | geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN; | |
543 | ||
544 | if (ch->flags & EEPROM_CHANNEL_RADAR) | |
545 | geo_ch->flags |= IEEE80211_CHAN_RADAR; | |
546 | ||
963f5517 | 547 | geo_ch->flags |= ch->fat_extension_channel; |
4d38c2e8 | 548 | |
630fe9b6 TW |
549 | if (ch->max_power_avg > priv->tx_power_channel_lmt) |
550 | priv->tx_power_channel_lmt = ch->max_power_avg; | |
c7de35cd RR |
551 | } else { |
552 | geo_ch->flags |= IEEE80211_CHAN_DISABLED; | |
553 | } | |
554 | ||
555 | /* Save flags for reg domain usage */ | |
556 | geo_ch->orig_flags = geo_ch->flags; | |
557 | ||
963f5517 | 558 | IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0x%X\n", |
c7de35cd RR |
559 | ch->channel, geo_ch->center_freq, |
560 | is_channel_a_band(ch) ? "5.2" : "2.4", | |
561 | geo_ch->flags & IEEE80211_CHAN_DISABLED ? | |
562 | "restricted" : "valid", | |
563 | geo_ch->flags); | |
564 | } | |
565 | ||
566 | if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) && | |
567 | priv->cfg->sku & IWL_SKU_A) { | |
568 | printk(KERN_INFO DRV_NAME | |
569 | ": Incorrectly detected BG card as ABG. Please send " | |
570 | "your PCI ID 0x%04X:0x%04X to maintainer.\n", | |
571 | priv->pci_dev->device, priv->pci_dev->subsystem_device); | |
572 | priv->cfg->sku &= ~IWL_SKU_A; | |
573 | } | |
574 | ||
575 | printk(KERN_INFO DRV_NAME | |
576 | ": Tunable channels: %d 802.11bg, %d 802.11a channels\n", | |
577 | priv->bands[IEEE80211_BAND_2GHZ].n_channels, | |
578 | priv->bands[IEEE80211_BAND_5GHZ].n_channels); | |
579 | ||
c7de35cd RR |
580 | |
581 | set_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
582 | ||
583 | return 0; | |
584 | } | |
585 | ||
586 | /* | |
587 | * iwlcore_free_geos - undo allocations in iwlcore_init_geos | |
588 | */ | |
6ba87956 | 589 | static void iwlcore_free_geos(struct iwl_priv *priv) |
c7de35cd RR |
590 | { |
591 | kfree(priv->ieee_channels); | |
592 | kfree(priv->ieee_rates); | |
593 | clear_bit(STATUS_GEO_CONFIGURED, &priv->status); | |
594 | } | |
c7de35cd | 595 | |
c7de35cd RR |
596 | static u8 is_single_rx_stream(struct iwl_priv *priv) |
597 | { | |
598 | return !priv->current_ht_config.is_ht || | |
599 | ((priv->current_ht_config.supp_mcs_set[1] == 0) && | |
600 | (priv->current_ht_config.supp_mcs_set[2] == 0)) || | |
601 | priv->ps_mode == IWL_MIMO_PS_STATIC; | |
602 | } | |
963f5517 | 603 | |
47c5196e TW |
604 | static u8 iwl_is_channel_extension(struct iwl_priv *priv, |
605 | enum ieee80211_band band, | |
606 | u16 channel, u8 extension_chan_offset) | |
607 | { | |
608 | const struct iwl_channel_info *ch_info; | |
609 | ||
610 | ch_info = iwl_get_channel_info(priv, band, channel); | |
611 | if (!is_channel_valid(ch_info)) | |
612 | return 0; | |
613 | ||
963f5517 EG |
614 | if (extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_ABOVE) |
615 | return !(ch_info->fat_extension_channel & | |
616 | IEEE80211_CHAN_NO_FAT_ABOVE); | |
617 | else if (extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_BELOW) | |
618 | return !(ch_info->fat_extension_channel & | |
619 | IEEE80211_CHAN_NO_FAT_BELOW); | |
47c5196e TW |
620 | |
621 | return 0; | |
622 | } | |
623 | ||
624 | u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv, | |
625 | struct ieee80211_ht_info *sta_ht_inf) | |
626 | { | |
627 | struct iwl_ht_info *iwl_ht_conf = &priv->current_ht_config; | |
628 | ||
629 | if ((!iwl_ht_conf->is_ht) || | |
630 | (iwl_ht_conf->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ) || | |
963f5517 | 631 | (iwl_ht_conf->extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_NONE)) |
47c5196e TW |
632 | return 0; |
633 | ||
634 | if (sta_ht_inf) { | |
635 | if ((!sta_ht_inf->ht_supported) || | |
636 | (!(sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH))) | |
637 | return 0; | |
638 | } | |
639 | ||
640 | return iwl_is_channel_extension(priv, priv->band, | |
641 | iwl_ht_conf->control_channel, | |
642 | iwl_ht_conf->extension_chan_offset); | |
643 | } | |
644 | EXPORT_SYMBOL(iwl_is_fat_tx_allowed); | |
645 | ||
646 | void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info) | |
647 | { | |
c1adf9fb | 648 | struct iwl_rxon_cmd *rxon = &priv->staging_rxon; |
47c5196e TW |
649 | u32 val; |
650 | ||
651 | if (!ht_info->is_ht) | |
652 | return; | |
653 | ||
654 | /* Set up channel bandwidth: 20 MHz only, or 20/40 mixed if fat ok */ | |
655 | if (iwl_is_fat_tx_allowed(priv, NULL)) | |
656 | rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED_MSK; | |
657 | else | |
658 | rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK | | |
659 | RXON_FLG_CHANNEL_MODE_PURE_40_MSK); | |
660 | ||
661 | if (le16_to_cpu(rxon->channel) != ht_info->control_channel) { | |
662 | IWL_DEBUG_ASSOC("control diff than current %d %d\n", | |
663 | le16_to_cpu(rxon->channel), | |
664 | ht_info->control_channel); | |
47c5196e TW |
665 | return; |
666 | } | |
667 | ||
668 | /* Note: control channel is opposite of extension channel */ | |
669 | switch (ht_info->extension_chan_offset) { | |
963f5517 | 670 | case IEEE80211_HT_IE_CHA_SEC_ABOVE: |
47c5196e TW |
671 | rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK); |
672 | break; | |
963f5517 | 673 | case IEEE80211_HT_IE_CHA_SEC_BELOW: |
47c5196e TW |
674 | rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK; |
675 | break; | |
963f5517 | 676 | case IEEE80211_HT_IE_CHA_SEC_NONE: |
47c5196e TW |
677 | default: |
678 | rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK; | |
679 | break; | |
680 | } | |
681 | ||
682 | val = ht_info->ht_protection; | |
683 | ||
684 | rxon->flags |= cpu_to_le32(val << RXON_FLG_HT_OPERATING_MODE_POS); | |
685 | ||
686 | iwl_set_rxon_chain(priv); | |
687 | ||
688 | IWL_DEBUG_ASSOC("supported HT rate 0x%X 0x%X 0x%X " | |
689 | "rxon flags 0x%X operation mode :0x%X " | |
690 | "extension channel offset 0x%x " | |
691 | "control chan %d\n", | |
692 | ht_info->supp_mcs_set[0], | |
693 | ht_info->supp_mcs_set[1], | |
694 | ht_info->supp_mcs_set[2], | |
695 | le32_to_cpu(rxon->flags), ht_info->ht_protection, | |
696 | ht_info->extension_chan_offset, | |
697 | ht_info->control_channel); | |
698 | return; | |
699 | } | |
700 | EXPORT_SYMBOL(iwl_set_rxon_ht); | |
701 | ||
c7de35cd RR |
702 | /* |
703 | * Determine how many receiver/antenna chains to use. | |
704 | * More provides better reception via diversity. Fewer saves power. | |
705 | * MIMO (dual stream) requires at least 2, but works better with 3. | |
706 | * This does not determine *which* chains to use, just how many. | |
707 | */ | |
708 | static int iwlcore_get_rx_chain_counter(struct iwl_priv *priv, | |
709 | u8 *idle_state, u8 *rx_state) | |
710 | { | |
711 | u8 is_single = is_single_rx_stream(priv); | |
712 | u8 is_cam = test_bit(STATUS_POWER_PMI, &priv->status) ? 0 : 1; | |
713 | ||
714 | /* # of Rx chains to use when expecting MIMO. */ | |
715 | if (is_single || (!is_cam && (priv->ps_mode == IWL_MIMO_PS_STATIC))) | |
716 | *rx_state = 2; | |
717 | else | |
718 | *rx_state = 3; | |
719 | ||
720 | /* # Rx chains when idling and maybe trying to save power */ | |
721 | switch (priv->ps_mode) { | |
722 | case IWL_MIMO_PS_STATIC: | |
723 | case IWL_MIMO_PS_DYNAMIC: | |
724 | *idle_state = (is_cam) ? 2 : 1; | |
725 | break; | |
726 | case IWL_MIMO_PS_NONE: | |
727 | *idle_state = (is_cam) ? *rx_state : 1; | |
728 | break; | |
729 | default: | |
730 | *idle_state = 1; | |
731 | break; | |
732 | } | |
733 | ||
734 | return 0; | |
735 | } | |
736 | ||
737 | /** | |
738 | * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image | |
739 | * | |
740 | * Selects how many and which Rx receivers/antennas/chains to use. | |
741 | * This should not be used for scan command ... it puts data in wrong place. | |
742 | */ | |
743 | void iwl_set_rxon_chain(struct iwl_priv *priv) | |
744 | { | |
745 | u8 is_single = is_single_rx_stream(priv); | |
746 | u8 idle_state, rx_state; | |
747 | ||
748 | priv->staging_rxon.rx_chain = 0; | |
749 | rx_state = idle_state = 3; | |
750 | ||
751 | /* Tell uCode which antennas are actually connected. | |
752 | * Before first association, we assume all antennas are connected. | |
753 | * Just after first association, iwl_chain_noise_calibration() | |
754 | * checks which antennas actually *are* connected. */ | |
755 | priv->staging_rxon.rx_chain |= | |
756 | cpu_to_le16(priv->hw_params.valid_rx_ant << | |
757 | RXON_RX_CHAIN_VALID_POS); | |
758 | ||
759 | /* How many receivers should we use? */ | |
760 | iwlcore_get_rx_chain_counter(priv, &idle_state, &rx_state); | |
761 | priv->staging_rxon.rx_chain |= | |
762 | cpu_to_le16(rx_state << RXON_RX_CHAIN_MIMO_CNT_POS); | |
763 | priv->staging_rxon.rx_chain |= | |
764 | cpu_to_le16(idle_state << RXON_RX_CHAIN_CNT_POS); | |
765 | ||
766 | if (!is_single && (rx_state >= 2) && | |
767 | !test_bit(STATUS_POWER_PMI, &priv->status)) | |
768 | priv->staging_rxon.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK; | |
769 | else | |
770 | priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK; | |
771 | ||
772 | IWL_DEBUG_ASSOC("rx chain %X\n", priv->staging_rxon.rx_chain); | |
773 | } | |
774 | EXPORT_SYMBOL(iwl_set_rxon_chain); | |
bf85ea4f AK |
775 | |
776 | /** | |
777 | * iwlcore_set_rxon_channel - Set the phymode and channel values in staging RXON | |
778 | * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz | |
779 | * @channel: Any channel valid for the requested phymode | |
780 | ||
781 | * In addition to setting the staging RXON, priv->phymode is also set. | |
782 | * | |
783 | * NOTE: Does not commit to the hardware; it sets appropriate bit fields | |
784 | * in the staging RXON flag structure based on the phymode | |
785 | */ | |
c7de35cd | 786 | int iwl_set_rxon_channel(struct iwl_priv *priv, |
bf85ea4f AK |
787 | enum ieee80211_band band, |
788 | u16 channel) | |
789 | { | |
8622e705 | 790 | if (!iwl_get_channel_info(priv, band, channel)) { |
bf85ea4f AK |
791 | IWL_DEBUG_INFO("Could not set channel to %d [%d]\n", |
792 | channel, band); | |
793 | return -EINVAL; | |
794 | } | |
795 | ||
796 | if ((le16_to_cpu(priv->staging_rxon.channel) == channel) && | |
797 | (priv->band == band)) | |
798 | return 0; | |
799 | ||
800 | priv->staging_rxon.channel = cpu_to_le16(channel); | |
801 | if (band == IEEE80211_BAND_5GHZ) | |
802 | priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK; | |
803 | else | |
804 | priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK; | |
805 | ||
806 | priv->band = band; | |
807 | ||
808 | IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, band); | |
809 | ||
810 | return 0; | |
811 | } | |
c7de35cd | 812 | EXPORT_SYMBOL(iwl_set_rxon_channel); |
bf85ea4f | 813 | |
6ba87956 | 814 | int iwl_setup_mac(struct iwl_priv *priv) |
bf85ea4f | 815 | { |
6ba87956 | 816 | int ret; |
bf85ea4f | 817 | struct ieee80211_hw *hw = priv->hw; |
e227ceac | 818 | hw->rate_control_algorithm = "iwl-agn-rs"; |
bf85ea4f | 819 | |
566bfe5a | 820 | /* Tell mac80211 our characteristics */ |
605a0bd6 | 821 | hw->flags = IEEE80211_HW_SIGNAL_DBM | |
566bfe5a | 822 | IEEE80211_HW_NOISE_DBM; |
bf85ea4f AK |
823 | /* Default value; 4 EDCA QOS priorities */ |
824 | hw->queues = 4; | |
49779293 RR |
825 | /* queues to support 11n aggregation */ |
826 | if (priv->cfg->sku & IWL_SKU_N) | |
9f17b318 | 827 | hw->ampdu_queues = priv->cfg->mod_params->num_of_ampdu_queues; |
6ba87956 TW |
828 | |
829 | hw->conf.beacon_int = 100; | |
b5d7be5e | 830 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
6ba87956 TW |
831 | |
832 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) | |
833 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
834 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
835 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) | |
836 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
837 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
838 | ||
839 | ret = ieee80211_register_hw(priv->hw); | |
840 | if (ret) { | |
841 | IWL_ERROR("Failed to register hw (error %d)\n", ret); | |
842 | return ret; | |
843 | } | |
844 | priv->mac80211_registered = 1; | |
845 | ||
846 | return 0; | |
bf85ea4f | 847 | } |
6ba87956 | 848 | EXPORT_SYMBOL(iwl_setup_mac); |
bf85ea4f | 849 | |
da154e30 RR |
850 | int iwl_set_hw_params(struct iwl_priv *priv) |
851 | { | |
852 | priv->hw_params.sw_crypto = priv->cfg->mod_params->sw_crypto; | |
853 | priv->hw_params.max_rxq_size = RX_QUEUE_SIZE; | |
854 | priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG; | |
855 | if (priv->cfg->mod_params->amsdu_size_8K) | |
856 | priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_8K; | |
857 | else | |
858 | priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K; | |
859 | priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256; | |
860 | ||
49779293 RR |
861 | if (priv->cfg->mod_params->disable_11n) |
862 | priv->cfg->sku &= ~IWL_SKU_N; | |
863 | ||
da154e30 RR |
864 | /* Device-specific setup */ |
865 | return priv->cfg->ops->lib->set_hw_params(priv); | |
866 | } | |
867 | EXPORT_SYMBOL(iwl_set_hw_params); | |
6ba87956 TW |
868 | |
869 | int iwl_init_drv(struct iwl_priv *priv) | |
c7de35cd RR |
870 | { |
871 | int ret; | |
c7de35cd RR |
872 | |
873 | priv->retry_rate = 1; | |
874 | priv->ibss_beacon = NULL; | |
875 | ||
876 | spin_lock_init(&priv->lock); | |
877 | spin_lock_init(&priv->power_data.lock); | |
878 | spin_lock_init(&priv->sta_lock); | |
879 | spin_lock_init(&priv->hcmd_lock); | |
880 | spin_lock_init(&priv->lq_mngr.lock); | |
881 | ||
c7de35cd RR |
882 | INIT_LIST_HEAD(&priv->free_frames); |
883 | ||
884 | mutex_init(&priv->mutex); | |
885 | ||
886 | /* Clear the driver's (not device's) station table */ | |
37deb2a0 | 887 | iwl_clear_stations_table(priv); |
c7de35cd RR |
888 | |
889 | priv->data_retry_limit = -1; | |
890 | priv->ieee_channels = NULL; | |
891 | priv->ieee_rates = NULL; | |
892 | priv->band = IEEE80211_BAND_2GHZ; | |
893 | ||
894 | priv->iw_mode = IEEE80211_IF_TYPE_STA; | |
895 | ||
896 | priv->use_ant_b_for_management_frame = 1; /* start with ant B */ | |
897 | priv->ps_mode = IWL_MIMO_PS_NONE; | |
898 | ||
899 | /* Choose which receivers/antennas to use */ | |
900 | iwl_set_rxon_chain(priv); | |
f53696de | 901 | iwl_init_scan_params(priv); |
c7de35cd | 902 | |
6ba87956 TW |
903 | if (priv->cfg->mod_params->enable_qos) |
904 | priv->qos_data.qos_enable = 1; | |
905 | ||
c7de35cd RR |
906 | iwl_reset_qos(priv); |
907 | ||
908 | priv->qos_data.qos_active = 0; | |
909 | priv->qos_data.qos_cap.val = 0; | |
910 | ||
911 | iwl_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6); | |
912 | ||
913 | priv->rates_mask = IWL_RATES_MASK; | |
914 | /* If power management is turned on, default to AC mode */ | |
915 | priv->power_mode = IWL_POWER_AC; | |
630fe9b6 | 916 | priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MAX; |
c7de35cd RR |
917 | |
918 | ret = iwl_init_channel_map(priv); | |
919 | if (ret) { | |
920 | IWL_ERROR("initializing regulatory failed: %d\n", ret); | |
921 | goto err; | |
922 | } | |
923 | ||
924 | ret = iwlcore_init_geos(priv); | |
925 | if (ret) { | |
926 | IWL_ERROR("initializing geos failed: %d\n", ret); | |
927 | goto err_free_channel_map; | |
928 | } | |
929 | ||
c7de35cd RR |
930 | return 0; |
931 | ||
c7de35cd RR |
932 | err_free_channel_map: |
933 | iwl_free_channel_map(priv); | |
934 | err: | |
935 | return ret; | |
936 | } | |
6ba87956 | 937 | EXPORT_SYMBOL(iwl_init_drv); |
c7de35cd | 938 | |
7c616cba TW |
939 | void iwl_free_calib_results(struct iwl_priv *priv) |
940 | { | |
941 | kfree(priv->calib_results.lo_res); | |
942 | priv->calib_results.lo_res = NULL; | |
943 | priv->calib_results.lo_res_len = 0; | |
944 | ||
945 | kfree(priv->calib_results.tx_iq_res); | |
946 | priv->calib_results.tx_iq_res = NULL; | |
947 | priv->calib_results.tx_iq_res_len = 0; | |
948 | ||
949 | kfree(priv->calib_results.tx_iq_perd_res); | |
950 | priv->calib_results.tx_iq_perd_res = NULL; | |
951 | priv->calib_results.tx_iq_perd_res_len = 0; | |
952 | } | |
953 | EXPORT_SYMBOL(iwl_free_calib_results); | |
6ba87956 | 954 | |
630fe9b6 TW |
955 | int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force) |
956 | { | |
957 | int ret = 0; | |
958 | if (tx_power < IWL_TX_POWER_TARGET_POWER_MIN) { | |
959 | IWL_WARNING("Requested user TXPOWER %d below limit.\n", | |
960 | priv->tx_power_user_lmt); | |
961 | return -EINVAL; | |
962 | } | |
963 | ||
964 | if (tx_power > IWL_TX_POWER_TARGET_POWER_MAX) { | |
965 | IWL_WARNING("Requested user TXPOWER %d above limit.\n", | |
966 | priv->tx_power_user_lmt); | |
967 | return -EINVAL; | |
968 | } | |
969 | ||
970 | if (priv->tx_power_user_lmt != tx_power) | |
971 | force = true; | |
972 | ||
973 | priv->tx_power_user_lmt = tx_power; | |
974 | ||
975 | if (force && priv->cfg->ops->lib->send_tx_power) | |
976 | ret = priv->cfg->ops->lib->send_tx_power(priv); | |
977 | ||
978 | return ret; | |
979 | } | |
980 | EXPORT_SYMBOL(iwl_set_tx_power); | |
981 | ||
982 | ||
6ba87956 | 983 | void iwl_uninit_drv(struct iwl_priv *priv) |
bf85ea4f | 984 | { |
7c616cba | 985 | iwl_free_calib_results(priv); |
6ba87956 TW |
986 | iwlcore_free_geos(priv); |
987 | iwl_free_channel_map(priv); | |
261415f7 | 988 | kfree(priv->scan); |
bf85ea4f | 989 | } |
6ba87956 | 990 | EXPORT_SYMBOL(iwl_uninit_drv); |
bf85ea4f | 991 | |
49ea8596 EG |
992 | int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags) |
993 | { | |
994 | u32 stat_flags = 0; | |
995 | struct iwl_host_cmd cmd = { | |
996 | .id = REPLY_STATISTICS_CMD, | |
997 | .meta.flags = flags, | |
998 | .len = sizeof(stat_flags), | |
999 | .data = (u8 *) &stat_flags, | |
1000 | }; | |
1001 | return iwl_send_cmd(priv, &cmd); | |
1002 | } | |
1003 | EXPORT_SYMBOL(iwl_send_statistics_request); | |
7e8c519e | 1004 | |
b0692f2f EG |
1005 | /** |
1006 | * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host, | |
1007 | * using sample data 100 bytes apart. If these sample points are good, | |
1008 | * it's a pretty good bet that everything between them is good, too. | |
1009 | */ | |
1010 | static int iwlcore_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len) | |
1011 | { | |
1012 | u32 val; | |
1013 | int ret = 0; | |
1014 | u32 errcnt = 0; | |
1015 | u32 i; | |
1016 | ||
1017 | IWL_DEBUG_INFO("ucode inst image size is %u\n", len); | |
1018 | ||
1019 | ret = iwl_grab_nic_access(priv); | |
1020 | if (ret) | |
1021 | return ret; | |
1022 | ||
1023 | for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { | |
1024 | /* read data comes through single port, auto-incr addr */ | |
1025 | /* NOTE: Use the debugless read so we don't flood kernel log | |
1026 | * if IWL_DL_IO is set */ | |
1027 | iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, | |
1028 | i + RTC_INST_LOWER_BOUND); | |
1029 | val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); | |
1030 | if (val != le32_to_cpu(*image)) { | |
1031 | ret = -EIO; | |
1032 | errcnt++; | |
1033 | if (errcnt >= 3) | |
1034 | break; | |
1035 | } | |
1036 | } | |
1037 | ||
1038 | iwl_release_nic_access(priv); | |
1039 | ||
1040 | return ret; | |
1041 | } | |
1042 | ||
1043 | /** | |
1044 | * iwlcore_verify_inst_full - verify runtime uCode image in card vs. host, | |
1045 | * looking at all data. | |
1046 | */ | |
1047 | static int iwl_verify_inst_full(struct iwl_priv *priv, __le32 *image, | |
1048 | u32 len) | |
1049 | { | |
1050 | u32 val; | |
1051 | u32 save_len = len; | |
1052 | int ret = 0; | |
1053 | u32 errcnt; | |
1054 | ||
1055 | IWL_DEBUG_INFO("ucode inst image size is %u\n", len); | |
1056 | ||
1057 | ret = iwl_grab_nic_access(priv); | |
1058 | if (ret) | |
1059 | return ret; | |
1060 | ||
1061 | iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, RTC_INST_LOWER_BOUND); | |
1062 | ||
1063 | errcnt = 0; | |
1064 | for (; len > 0; len -= sizeof(u32), image++) { | |
1065 | /* read data comes through single port, auto-incr addr */ | |
1066 | /* NOTE: Use the debugless read so we don't flood kernel log | |
1067 | * if IWL_DL_IO is set */ | |
1068 | val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); | |
1069 | if (val != le32_to_cpu(*image)) { | |
1070 | IWL_ERROR("uCode INST section is invalid at " | |
1071 | "offset 0x%x, is 0x%x, s/b 0x%x\n", | |
1072 | save_len - len, val, le32_to_cpu(*image)); | |
1073 | ret = -EIO; | |
1074 | errcnt++; | |
1075 | if (errcnt >= 20) | |
1076 | break; | |
1077 | } | |
1078 | } | |
1079 | ||
1080 | iwl_release_nic_access(priv); | |
1081 | ||
1082 | if (!errcnt) | |
1083 | IWL_DEBUG_INFO | |
1084 | ("ucode image in INSTRUCTION memory is good\n"); | |
1085 | ||
1086 | return ret; | |
1087 | } | |
1088 | ||
1089 | /** | |
1090 | * iwl_verify_ucode - determine which instruction image is in SRAM, | |
1091 | * and verify its contents | |
1092 | */ | |
1093 | int iwl_verify_ucode(struct iwl_priv *priv) | |
1094 | { | |
1095 | __le32 *image; | |
1096 | u32 len; | |
1097 | int ret; | |
1098 | ||
1099 | /* Try bootstrap */ | |
1100 | image = (__le32 *)priv->ucode_boot.v_addr; | |
1101 | len = priv->ucode_boot.len; | |
1102 | ret = iwlcore_verify_inst_sparse(priv, image, len); | |
1103 | if (!ret) { | |
1104 | IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n"); | |
1105 | return 0; | |
1106 | } | |
1107 | ||
1108 | /* Try initialize */ | |
1109 | image = (__le32 *)priv->ucode_init.v_addr; | |
1110 | len = priv->ucode_init.len; | |
1111 | ret = iwlcore_verify_inst_sparse(priv, image, len); | |
1112 | if (!ret) { | |
1113 | IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n"); | |
1114 | return 0; | |
1115 | } | |
1116 | ||
1117 | /* Try runtime/protocol */ | |
1118 | image = (__le32 *)priv->ucode_code.v_addr; | |
1119 | len = priv->ucode_code.len; | |
1120 | ret = iwlcore_verify_inst_sparse(priv, image, len); | |
1121 | if (!ret) { | |
1122 | IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n"); | |
1123 | return 0; | |
1124 | } | |
1125 | ||
1126 | IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); | |
1127 | ||
1128 | /* Since nothing seems to match, show first several data entries in | |
1129 | * instruction SRAM, so maybe visual inspection will give a clue. | |
1130 | * Selection of bootstrap image (vs. other images) is arbitrary. */ | |
1131 | image = (__le32 *)priv->ucode_boot.v_addr; | |
1132 | len = priv->ucode_boot.len; | |
1133 | ret = iwl_verify_inst_full(priv, image, len); | |
1134 | ||
1135 | return ret; | |
1136 | } | |
1137 | EXPORT_SYMBOL(iwl_verify_ucode); | |
1138 | ||
189a2b59 | 1139 | |
ede0cba4 EK |
1140 | static const char *desc_lookup(int i) |
1141 | { | |
1142 | switch (i) { | |
1143 | case 1: | |
1144 | return "FAIL"; | |
1145 | case 2: | |
1146 | return "BAD_PARAM"; | |
1147 | case 3: | |
1148 | return "BAD_CHECKSUM"; | |
1149 | case 4: | |
1150 | return "NMI_INTERRUPT"; | |
1151 | case 5: | |
1152 | return "SYSASSERT"; | |
1153 | case 6: | |
1154 | return "FATAL_ERROR"; | |
1155 | } | |
1156 | ||
1157 | return "UNKNOWN"; | |
1158 | } | |
1159 | ||
1160 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
1161 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
1162 | ||
1163 | void iwl_dump_nic_error_log(struct iwl_priv *priv) | |
1164 | { | |
1165 | u32 data2, line; | |
1166 | u32 desc, time, count, base, data1; | |
1167 | u32 blink1, blink2, ilink1, ilink2; | |
e1dfc085 | 1168 | int ret; |
ede0cba4 | 1169 | |
e1dfc085 GG |
1170 | if (priv->ucode_type == UCODE_INIT) |
1171 | base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr); | |
1172 | else | |
1173 | base = le32_to_cpu(priv->card_alive.error_event_table_ptr); | |
ede0cba4 EK |
1174 | |
1175 | if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { | |
1176 | IWL_ERROR("Not valid error log pointer 0x%08X\n", base); | |
1177 | return; | |
1178 | } | |
1179 | ||
e1dfc085 GG |
1180 | ret = iwl_grab_nic_access(priv); |
1181 | if (ret) { | |
ede0cba4 EK |
1182 | IWL_WARNING("Can not read from adapter at this time.\n"); |
1183 | return; | |
1184 | } | |
1185 | ||
1186 | count = iwl_read_targ_mem(priv, base); | |
1187 | ||
1188 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { | |
1189 | IWL_ERROR("Start IWL Error Log Dump:\n"); | |
1190 | IWL_ERROR("Status: 0x%08lX, count: %d\n", priv->status, count); | |
1191 | } | |
1192 | ||
1193 | desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32)); | |
1194 | blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32)); | |
1195 | blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32)); | |
1196 | ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32)); | |
1197 | ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32)); | |
1198 | data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32)); | |
1199 | data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32)); | |
1200 | line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32)); | |
1201 | time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32)); | |
1202 | ||
1203 | IWL_ERROR("Desc Time " | |
1204 | "data1 data2 line\n"); | |
1205 | IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n", | |
1206 | desc_lookup(desc), desc, time, data1, data2, line); | |
1207 | IWL_ERROR("blink1 blink2 ilink1 ilink2\n"); | |
1208 | IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2, | |
1209 | ilink1, ilink2); | |
1210 | ||
1211 | iwl_release_nic_access(priv); | |
1212 | } | |
1213 | EXPORT_SYMBOL(iwl_dump_nic_error_log); | |
1214 | ||
189a2b59 EK |
1215 | #define EVENT_START_OFFSET (4 * sizeof(u32)) |
1216 | ||
1217 | /** | |
1218 | * iwl_print_event_log - Dump error event log to syslog | |
1219 | * | |
1220 | * NOTE: Must be called with iwl4965_grab_nic_access() already obtained! | |
1221 | */ | |
1222 | void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx, | |
1223 | u32 num_events, u32 mode) | |
1224 | { | |
1225 | u32 i; | |
1226 | u32 base; /* SRAM byte address of event log header */ | |
1227 | u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ | |
1228 | u32 ptr; /* SRAM byte address of log data */ | |
1229 | u32 ev, time, data; /* event log data */ | |
1230 | ||
1231 | if (num_events == 0) | |
1232 | return; | |
e1dfc085 GG |
1233 | if (priv->ucode_type == UCODE_INIT) |
1234 | base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); | |
1235 | else | |
1236 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
189a2b59 EK |
1237 | |
1238 | if (mode == 0) | |
1239 | event_size = 2 * sizeof(u32); | |
1240 | else | |
1241 | event_size = 3 * sizeof(u32); | |
1242 | ||
1243 | ptr = base + EVENT_START_OFFSET + (start_idx * event_size); | |
1244 | ||
1245 | /* "time" is actually "data" for mode 0 (no timestamp). | |
1246 | * place event id # at far right for easier visual parsing. */ | |
1247 | for (i = 0; i < num_events; i++) { | |
1248 | ev = iwl_read_targ_mem(priv, ptr); | |
1249 | ptr += sizeof(u32); | |
1250 | time = iwl_read_targ_mem(priv, ptr); | |
1251 | ptr += sizeof(u32); | |
77c5d08e TW |
1252 | if (mode == 0) { |
1253 | /* data, ev */ | |
1254 | IWL_ERROR("EVT_LOG:0x%08x:%04u\n", time, ev); | |
1255 | } else { | |
189a2b59 EK |
1256 | data = iwl_read_targ_mem(priv, ptr); |
1257 | ptr += sizeof(u32); | |
77c5d08e TW |
1258 | IWL_ERROR("EVT_LOGT:%010u:0x%08x:%04u\n", |
1259 | time, data, ev); | |
189a2b59 EK |
1260 | } |
1261 | } | |
1262 | } | |
1263 | EXPORT_SYMBOL(iwl_print_event_log); | |
1264 | ||
1265 | ||
1266 | void iwl_dump_nic_event_log(struct iwl_priv *priv) | |
1267 | { | |
e1dfc085 | 1268 | int ret; |
189a2b59 EK |
1269 | u32 base; /* SRAM byte address of event log header */ |
1270 | u32 capacity; /* event log capacity in # entries */ | |
1271 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
1272 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
1273 | u32 next_entry; /* index of next entry to be written by uCode */ | |
1274 | u32 size; /* # entries that we'll print */ | |
1275 | ||
e1dfc085 GG |
1276 | if (priv->ucode_type == UCODE_INIT) |
1277 | base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr); | |
1278 | else | |
1279 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
1280 | ||
189a2b59 EK |
1281 | if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) { |
1282 | IWL_ERROR("Invalid event log pointer 0x%08X\n", base); | |
1283 | return; | |
1284 | } | |
1285 | ||
e1dfc085 GG |
1286 | ret = iwl_grab_nic_access(priv); |
1287 | if (ret) { | |
189a2b59 EK |
1288 | IWL_WARNING("Can not read from adapter at this time.\n"); |
1289 | return; | |
1290 | } | |
1291 | ||
1292 | /* event log header */ | |
1293 | capacity = iwl_read_targ_mem(priv, base); | |
1294 | mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
1295 | num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
1296 | next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
1297 | ||
1298 | size = num_wraps ? capacity : next_entry; | |
1299 | ||
1300 | /* bail out if nothing in log */ | |
1301 | if (size == 0) { | |
1302 | IWL_ERROR("Start IWL Event Log Dump: nothing in log\n"); | |
1303 | iwl_release_nic_access(priv); | |
1304 | return; | |
1305 | } | |
1306 | ||
1307 | IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n", | |
1308 | size, num_wraps); | |
1309 | ||
1310 | /* if uCode has wrapped back to top of log, start at the oldest entry, | |
1311 | * i.e the next one that uCode would fill. */ | |
1312 | if (num_wraps) | |
1313 | iwl_print_event_log(priv, next_entry, | |
1314 | capacity - next_entry, mode); | |
1315 | /* (then/else) start at top of log */ | |
1316 | iwl_print_event_log(priv, 0, next_entry, mode); | |
1317 | ||
1318 | iwl_release_nic_access(priv); | |
1319 | } | |
1320 | EXPORT_SYMBOL(iwl_dump_nic_event_log); | |
1321 | ||
47f4a587 EG |
1322 | void iwl_rf_kill_ct_config(struct iwl_priv *priv) |
1323 | { | |
1324 | struct iwl_ct_kill_config cmd; | |
1325 | unsigned long flags; | |
1326 | int ret = 0; | |
1327 | ||
1328 | spin_lock_irqsave(&priv->lock, flags); | |
1329 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
1330 | CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); | |
1331 | spin_unlock_irqrestore(&priv->lock, flags); | |
1332 | ||
1333 | cmd.critical_temperature_R = | |
1334 | cpu_to_le32(priv->hw_params.ct_kill_threshold); | |
189a2b59 | 1335 | |
47f4a587 EG |
1336 | ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, |
1337 | sizeof(cmd), &cmd); | |
1338 | if (ret) | |
1339 | IWL_ERROR("REPLY_CT_KILL_CONFIG_CMD failed\n"); | |
1340 | else | |
1341 | IWL_DEBUG_INFO("REPLY_CT_KILL_CONFIG_CMD succeeded, " | |
1342 | "critical temperature is %d\n", | |
1343 | cmd.critical_temperature_R); | |
1344 | } | |
1345 | EXPORT_SYMBOL(iwl_rf_kill_ct_config); | |
14a08a7f EG |
1346 | |
1347 | /* | |
1348 | * CARD_STATE_CMD | |
1349 | * | |
1350 | * Use: Sets the device's internal card state to enable, disable, or halt | |
1351 | * | |
1352 | * When in the 'enable' state the card operates as normal. | |
1353 | * When in the 'disable' state, the card enters into a low power mode. | |
1354 | * When in the 'halt' state, the card is shut down and must be fully | |
1355 | * restarted to come back on. | |
1356 | */ | |
1357 | static int iwl_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag) | |
1358 | { | |
1359 | struct iwl_host_cmd cmd = { | |
1360 | .id = REPLY_CARD_STATE_CMD, | |
1361 | .len = sizeof(u32), | |
1362 | .data = &flags, | |
1363 | .meta.flags = meta_flag, | |
1364 | }; | |
1365 | ||
1366 | return iwl_send_cmd(priv, &cmd); | |
1367 | } | |
1368 | ||
1369 | void iwl_radio_kill_sw_disable_radio(struct iwl_priv *priv) | |
1370 | { | |
1371 | unsigned long flags; | |
1372 | ||
1373 | if (test_bit(STATUS_RF_KILL_SW, &priv->status)) | |
1374 | return; | |
1375 | ||
1376 | IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO OFF\n"); | |
1377 | ||
1378 | iwl_scan_cancel(priv); | |
1379 | /* FIXME: This is a workaround for AP */ | |
1380 | if (priv->iw_mode != IEEE80211_IF_TYPE_AP) { | |
1381 | spin_lock_irqsave(&priv->lock, flags); | |
1382 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, | |
1383 | CSR_UCODE_SW_BIT_RFKILL); | |
1384 | spin_unlock_irqrestore(&priv->lock, flags); | |
1385 | /* call the host command only if no hw rf-kill set */ | |
1386 | if (!test_bit(STATUS_RF_KILL_HW, &priv->status) && | |
1387 | iwl_is_ready(priv)) | |
1388 | iwl_send_card_state(priv, | |
1389 | CARD_STATE_CMD_DISABLE, 0); | |
1390 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
1391 | /* make sure mac80211 stop sending Tx frame */ | |
1392 | if (priv->mac80211_registered) | |
1393 | ieee80211_stop_queues(priv->hw); | |
1394 | } | |
1395 | } | |
1396 | EXPORT_SYMBOL(iwl_radio_kill_sw_disable_radio); | |
1397 | ||
1398 | int iwl_radio_kill_sw_enable_radio(struct iwl_priv *priv) | |
1399 | { | |
1400 | unsigned long flags; | |
1401 | ||
1402 | if (!test_bit(STATUS_RF_KILL_SW, &priv->status)) | |
1403 | return 0; | |
1404 | ||
1405 | IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO ON\n"); | |
1406 | ||
1407 | spin_lock_irqsave(&priv->lock, flags); | |
1408 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
1409 | ||
a9efa652 EG |
1410 | /* If the driver is up it will receive CARD_STATE_NOTIFICATION |
1411 | * notification where it will clear SW rfkill status. | |
1412 | * Setting it here would break the handler. Only if the | |
1413 | * interface is down we can set here since we don't | |
1414 | * receive any further notification. | |
1415 | */ | |
1416 | if (!priv->is_open) | |
1417 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
14a08a7f EG |
1418 | spin_unlock_irqrestore(&priv->lock, flags); |
1419 | ||
1420 | /* wake up ucode */ | |
1421 | msleep(10); | |
1422 | ||
1423 | spin_lock_irqsave(&priv->lock, flags); | |
1424 | iwl_read32(priv, CSR_UCODE_DRV_GP1); | |
1425 | if (!iwl_grab_nic_access(priv)) | |
1426 | iwl_release_nic_access(priv); | |
1427 | spin_unlock_irqrestore(&priv->lock, flags); | |
1428 | ||
1429 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) { | |
1430 | IWL_DEBUG_RF_KILL("Can not turn radio back on - " | |
1431 | "disabled by HW switch\n"); | |
1432 | return 0; | |
1433 | } | |
1434 | ||
a9efa652 EG |
1435 | /* If the driver is already loaded, it will receive |
1436 | * CARD_STATE_NOTIFICATION notifications and the handler will | |
1437 | * call restart to reload the driver. | |
1438 | */ | |
14a08a7f EG |
1439 | return 1; |
1440 | } | |
1441 | EXPORT_SYMBOL(iwl_radio_kill_sw_enable_radio); |