1 /******************************************************************************
5 * Copyright(c) 2008 - 2009 Intel Corporation. All rights reserved.
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.
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.
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,
21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.GPL.
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *****************************************************************************/
29 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/etherdevice.h>
32 #include <net/mac80211.h>
34 #include "iwl-eeprom.h"
35 #include "iwl-dev.h" /* FIXME: remove */
36 #include "iwl-debug.h"
39 #include "iwl-rfkill.h"
40 #include "iwl-power.h"
44 MODULE_DESCRIPTION("iwl core");
45 MODULE_VERSION(IWLWIFI_VERSION);
46 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
47 MODULE_LICENSE("GPL");
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 }
64 * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate
66 * If there isn't a valid next or previous rate then INV is used which
67 * maps to IWL_RATE_INVALID
70 const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = {
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) */
86 EXPORT_SYMBOL(iwl_rates);
89 * translate ucode response to mac80211 tx status control values
91 void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
92 struct ieee80211_tx_info *info)
95 struct ieee80211_tx_rate *r = &info->control.rates[0];
97 info->antenna_sel_tx =
98 ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS);
99 if (rate_n_flags & RATE_MCS_HT_MSK)
100 r->flags |= IEEE80211_TX_RC_MCS;
101 if (rate_n_flags & RATE_MCS_GF_MSK)
102 r->flags |= IEEE80211_TX_RC_GREEN_FIELD;
103 if (rate_n_flags & RATE_MCS_FAT_MSK)
104 r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
105 if (rate_n_flags & RATE_MCS_DUP_MSK)
106 r->flags |= IEEE80211_TX_RC_DUP_DATA;
107 if (rate_n_flags & RATE_MCS_SGI_MSK)
108 r->flags |= IEEE80211_TX_RC_SHORT_GI;
109 rate_index = iwl_hwrate_to_plcp_idx(rate_n_flags);
110 if (info->band == IEEE80211_BAND_5GHZ)
111 rate_index -= IWL_FIRST_OFDM_RATE;
114 EXPORT_SYMBOL(iwl_hwrate_to_tx_control);
116 int iwl_hwrate_to_plcp_idx(u32 rate_n_flags)
121 if (rate_n_flags & RATE_MCS_HT_MSK) {
122 idx = (rate_n_flags & 0xff);
124 if (idx >= IWL_RATE_MIMO3_6M_PLCP)
125 idx = idx - IWL_RATE_MIMO3_6M_PLCP;
126 else if (idx >= IWL_RATE_MIMO2_6M_PLCP)
127 idx = idx - IWL_RATE_MIMO2_6M_PLCP;
129 idx += IWL_FIRST_OFDM_RATE;
130 /* skip 9M not supported in ht*/
131 if (idx >= IWL_RATE_9M_INDEX)
133 if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE))
136 /* legacy rate format, search for match in table */
138 for (idx = 0; idx < ARRAY_SIZE(iwl_rates); idx++)
139 if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF))
145 EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx);
147 u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant)
151 for (i = 0; i < RATE_ANT_NUM - 1; i++) {
152 ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0;
153 if (priv->hw_params.valid_tx_ant & BIT(ind))
159 const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
160 EXPORT_SYMBOL(iwl_bcast_addr);
163 /* This function both allocates and initializes hw and priv. */
164 struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
165 struct ieee80211_ops *hw_ops)
167 struct iwl_priv *priv;
169 /* mac80211 allocates memory for this device instance, including
170 * space for this driver's private structure */
171 struct ieee80211_hw *hw =
172 ieee80211_alloc_hw(sizeof(struct iwl_priv), hw_ops);
174 printk(KERN_ERR "%s: Can not allocate network device\n",
185 EXPORT_SYMBOL(iwl_alloc_all);
187 void iwl_hw_detect(struct iwl_priv *priv)
189 priv->hw_rev = _iwl_read32(priv, CSR_HW_REV);
190 priv->hw_wa_rev = _iwl_read32(priv, CSR_HW_REV_WA_REG);
191 pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &priv->rev_id);
193 EXPORT_SYMBOL(iwl_hw_detect);
195 int iwl_hw_nic_init(struct iwl_priv *priv)
198 struct iwl_rx_queue *rxq = &priv->rxq;
202 spin_lock_irqsave(&priv->lock, flags);
203 priv->cfg->ops->lib->apm_ops.init(priv);
204 iwl_write32(priv, CSR_INT_COALESCING, 512 / 32);
205 spin_unlock_irqrestore(&priv->lock, flags);
207 ret = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN);
209 priv->cfg->ops->lib->apm_ops.config(priv);
211 /* Allocate the RX queue, or reset if it is already allocated */
213 ret = iwl_rx_queue_alloc(priv);
215 IWL_ERR(priv, "Unable to initialize Rx queue\n");
219 iwl_rx_queue_reset(priv, rxq);
221 iwl_rx_replenish(priv);
223 iwl_rx_init(priv, rxq);
225 spin_lock_irqsave(&priv->lock, flags);
227 rxq->need_update = 1;
228 iwl_rx_queue_update_write_ptr(priv, rxq);
230 spin_unlock_irqrestore(&priv->lock, flags);
232 /* Allocate and init all Tx and Command queues */
233 ret = iwl_txq_ctx_reset(priv);
237 set_bit(STATUS_INIT, &priv->status);
241 EXPORT_SYMBOL(iwl_hw_nic_init);
246 void iwl_activate_qos(struct iwl_priv *priv, u8 force)
248 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
251 priv->qos_data.def_qos_parm.qos_flags = 0;
253 if (priv->qos_data.qos_cap.q_AP.queue_request &&
254 !priv->qos_data.qos_cap.q_AP.txop_request)
255 priv->qos_data.def_qos_parm.qos_flags |=
256 QOS_PARAM_FLG_TXOP_TYPE_MSK;
257 if (priv->qos_data.qos_active)
258 priv->qos_data.def_qos_parm.qos_flags |=
259 QOS_PARAM_FLG_UPDATE_EDCA_MSK;
261 if (priv->current_ht_config.is_ht)
262 priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
264 if (force || iwl_is_associated(priv)) {
265 IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
266 priv->qos_data.qos_active,
267 priv->qos_data.def_qos_parm.qos_flags);
269 iwl_send_cmd_pdu_async(priv, REPLY_QOS_PARAM,
270 sizeof(struct iwl_qosparam_cmd),
271 &priv->qos_data.def_qos_parm, NULL);
274 EXPORT_SYMBOL(iwl_activate_qos);
276 void iwl_reset_qos(struct iwl_priv *priv)
281 bool is_legacy = false;
285 spin_lock_irqsave(&priv->lock, flags);
286 /* QoS always active in AP and ADHOC mode
287 * In STA mode wait for association
289 if (priv->iw_mode == NL80211_IFTYPE_ADHOC ||
290 priv->iw_mode == NL80211_IFTYPE_AP)
291 priv->qos_data.qos_active = 1;
293 priv->qos_data.qos_active = 0;
295 /* check for legacy mode */
296 if ((priv->iw_mode == NL80211_IFTYPE_ADHOC &&
297 (priv->active_rate & IWL_OFDM_RATES_MASK) == 0) ||
298 (priv->iw_mode == NL80211_IFTYPE_STATION &&
299 (priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK) == 0)) {
304 if (priv->qos_data.qos_active)
307 priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min);
308 priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max);
309 priv->qos_data.def_qos_parm.ac[0].aifsn = aifs;
310 priv->qos_data.def_qos_parm.ac[0].edca_txop = 0;
311 priv->qos_data.def_qos_parm.ac[0].reserved1 = 0;
313 if (priv->qos_data.qos_active) {
315 priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min);
316 priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max);
317 priv->qos_data.def_qos_parm.ac[i].aifsn = 7;
318 priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
319 priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
322 priv->qos_data.def_qos_parm.ac[i].cw_min =
323 cpu_to_le16((cw_min + 1) / 2 - 1);
324 priv->qos_data.def_qos_parm.ac[i].cw_max =
326 priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
328 priv->qos_data.def_qos_parm.ac[i].edca_txop =
331 priv->qos_data.def_qos_parm.ac[i].edca_txop =
333 priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
336 priv->qos_data.def_qos_parm.ac[i].cw_min =
337 cpu_to_le16((cw_min + 1) / 4 - 1);
338 priv->qos_data.def_qos_parm.ac[i].cw_max =
339 cpu_to_le16((cw_max + 1) / 2 - 1);
340 priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
341 priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
343 priv->qos_data.def_qos_parm.ac[i].edca_txop =
346 priv->qos_data.def_qos_parm.ac[i].edca_txop =
349 for (i = 1; i < 4; i++) {
350 priv->qos_data.def_qos_parm.ac[i].cw_min =
352 priv->qos_data.def_qos_parm.ac[i].cw_max =
354 priv->qos_data.def_qos_parm.ac[i].aifsn = aifs;
355 priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
356 priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
359 IWL_DEBUG_QOS(priv, "set QoS to default \n");
361 spin_unlock_irqrestore(&priv->lock, flags);
363 EXPORT_SYMBOL(iwl_reset_qos);
365 #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
366 #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
367 static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv,
368 struct ieee80211_sta_ht_cap *ht_info,
369 enum ieee80211_band band)
371 u16 max_bit_rate = 0;
372 u8 rx_chains_num = priv->hw_params.rx_chains_num;
373 u8 tx_chains_num = priv->hw_params.tx_chains_num;
376 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
378 ht_info->ht_supported = true;
380 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
381 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
382 ht_info->cap |= (IEEE80211_HT_CAP_SM_PS &
383 (WLAN_HT_CAP_SM_PS_DISABLED << 2));
385 max_bit_rate = MAX_BIT_RATE_20_MHZ;
386 if (priv->hw_params.fat_channel & BIT(band)) {
387 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
388 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
389 ht_info->mcs.rx_mask[4] = 0x01;
390 max_bit_rate = MAX_BIT_RATE_40_MHZ;
393 if (priv->cfg->mod_params->amsdu_size_8K)
394 ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU;
396 ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF;
397 ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF;
399 ht_info->mcs.rx_mask[0] = 0xFF;
400 if (rx_chains_num >= 2)
401 ht_info->mcs.rx_mask[1] = 0xFF;
402 if (rx_chains_num >= 3)
403 ht_info->mcs.rx_mask[2] = 0xFF;
405 /* Highest supported Rx data rate */
406 max_bit_rate *= rx_chains_num;
407 WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK);
408 ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate);
410 /* Tx MCS capabilities */
411 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
412 if (tx_chains_num != rx_chains_num) {
413 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
414 ht_info->mcs.tx_params |= ((tx_chains_num - 1) <<
415 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
419 static void iwlcore_init_hw_rates(struct iwl_priv *priv,
420 struct ieee80211_rate *rates)
424 for (i = 0; i < IWL_RATE_COUNT; i++) {
425 rates[i].bitrate = iwl_rates[i].ieee * 5;
426 rates[i].hw_value = i; /* Rate scaling will work on indexes */
427 rates[i].hw_value_short = i;
429 if ((i > IWL_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) {
431 * If CCK != 1M then set short preamble rate flag.
434 (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ?
435 0 : IEEE80211_RATE_SHORT_PREAMBLE;
442 * iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom
444 int iwlcore_init_geos(struct iwl_priv *priv)
446 struct iwl_channel_info *ch;
447 struct ieee80211_supported_band *sband;
448 struct ieee80211_channel *channels;
449 struct ieee80211_channel *geo_ch;
450 struct ieee80211_rate *rates;
453 if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
454 priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
455 IWL_DEBUG_INFO(priv, "Geography modes already initialized.\n");
456 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
460 channels = kzalloc(sizeof(struct ieee80211_channel) *
461 priv->channel_count, GFP_KERNEL);
465 rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)),
472 /* 5.2GHz channels start after the 2.4GHz channels */
473 sband = &priv->bands[IEEE80211_BAND_5GHZ];
474 sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)];
476 sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
477 sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE;
479 if (priv->cfg->sku & IWL_SKU_N)
480 iwlcore_init_ht_hw_capab(priv, &sband->ht_cap,
481 IEEE80211_BAND_5GHZ);
483 sband = &priv->bands[IEEE80211_BAND_2GHZ];
484 sband->channels = channels;
486 sband->bitrates = rates;
487 sband->n_bitrates = IWL_RATE_COUNT;
489 if (priv->cfg->sku & IWL_SKU_N)
490 iwlcore_init_ht_hw_capab(priv, &sband->ht_cap,
491 IEEE80211_BAND_2GHZ);
493 priv->ieee_channels = channels;
494 priv->ieee_rates = rates;
496 for (i = 0; i < priv->channel_count; i++) {
497 ch = &priv->channel_info[i];
499 /* FIXME: might be removed if scan is OK */
500 if (!is_channel_valid(ch))
503 if (is_channel_a_band(ch))
504 sband = &priv->bands[IEEE80211_BAND_5GHZ];
506 sband = &priv->bands[IEEE80211_BAND_2GHZ];
508 geo_ch = &sband->channels[sband->n_channels++];
510 geo_ch->center_freq =
511 ieee80211_channel_to_frequency(ch->channel);
512 geo_ch->max_power = ch->max_power_avg;
513 geo_ch->max_antenna_gain = 0xff;
514 geo_ch->hw_value = ch->channel;
516 if (is_channel_valid(ch)) {
517 if (!(ch->flags & EEPROM_CHANNEL_IBSS))
518 geo_ch->flags |= IEEE80211_CHAN_NO_IBSS;
520 if (!(ch->flags & EEPROM_CHANNEL_ACTIVE))
521 geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
523 if (ch->flags & EEPROM_CHANNEL_RADAR)
524 geo_ch->flags |= IEEE80211_CHAN_RADAR;
526 geo_ch->flags |= ch->fat_extension_channel;
528 if (ch->max_power_avg > priv->tx_power_channel_lmt)
529 priv->tx_power_channel_lmt = ch->max_power_avg;
531 geo_ch->flags |= IEEE80211_CHAN_DISABLED;
534 /* Save flags for reg domain usage */
535 geo_ch->orig_flags = geo_ch->flags;
537 IWL_DEBUG_INFO(priv, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n",
538 ch->channel, geo_ch->center_freq,
539 is_channel_a_band(ch) ? "5.2" : "2.4",
540 geo_ch->flags & IEEE80211_CHAN_DISABLED ?
541 "restricted" : "valid",
545 if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
546 priv->cfg->sku & IWL_SKU_A) {
547 IWL_INFO(priv, "Incorrectly detected BG card as ABG. "
548 "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
549 priv->pci_dev->device,
550 priv->pci_dev->subsystem_device);
551 priv->cfg->sku &= ~IWL_SKU_A;
554 IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
555 priv->bands[IEEE80211_BAND_2GHZ].n_channels,
556 priv->bands[IEEE80211_BAND_5GHZ].n_channels);
558 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
562 EXPORT_SYMBOL(iwlcore_init_geos);
565 * iwlcore_free_geos - undo allocations in iwlcore_init_geos
567 void iwlcore_free_geos(struct iwl_priv *priv)
569 kfree(priv->ieee_channels);
570 kfree(priv->ieee_rates);
571 clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
573 EXPORT_SYMBOL(iwlcore_free_geos);
575 static bool is_single_rx_stream(struct iwl_priv *priv)
577 return !priv->current_ht_config.is_ht ||
578 ((priv->current_ht_config.mcs.rx_mask[1] == 0) &&
579 (priv->current_ht_config.mcs.rx_mask[2] == 0));
582 static u8 iwl_is_channel_extension(struct iwl_priv *priv,
583 enum ieee80211_band band,
584 u16 channel, u8 extension_chan_offset)
586 const struct iwl_channel_info *ch_info;
588 ch_info = iwl_get_channel_info(priv, band, channel);
589 if (!is_channel_valid(ch_info))
592 if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
593 return !(ch_info->fat_extension_channel &
594 IEEE80211_CHAN_NO_FAT_ABOVE);
595 else if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW)
596 return !(ch_info->fat_extension_channel &
597 IEEE80211_CHAN_NO_FAT_BELOW);
602 u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv,
603 struct ieee80211_sta_ht_cap *sta_ht_inf)
605 struct iwl_ht_info *iwl_ht_conf = &priv->current_ht_config;
607 if ((!iwl_ht_conf->is_ht) ||
608 (iwl_ht_conf->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ) ||
609 (iwl_ht_conf->extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE))
613 if ((!sta_ht_inf->ht_supported) ||
614 (!(sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)))
618 return iwl_is_channel_extension(priv, priv->band,
619 le16_to_cpu(priv->staging_rxon.channel),
620 iwl_ht_conf->extension_chan_offset);
622 EXPORT_SYMBOL(iwl_is_fat_tx_allowed);
624 void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
626 struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
629 rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
631 rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
634 EXPORT_SYMBOL(iwl_set_rxon_hwcrypto);
637 * iwl_check_rxon_cmd - validate RXON structure is valid
639 * NOTE: This is really only useful during development and can eventually
640 * be #ifdef'd out once the driver is stable and folks aren't actively
643 int iwl_check_rxon_cmd(struct iwl_priv *priv)
647 struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
649 if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
650 error |= le32_to_cpu(rxon->flags &
651 (RXON_FLG_TGJ_NARROW_BAND_MSK |
652 RXON_FLG_RADAR_DETECT_MSK));
654 IWL_WARN(priv, "check 24G fields %d | %d\n",
657 error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
658 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
660 IWL_WARN(priv, "check 52 fields %d | %d\n",
662 error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
664 IWL_WARN(priv, "check 52 CCK %d | %d\n",
667 error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
669 IWL_WARN(priv, "check mac addr %d | %d\n", counter++, error);
671 /* make sure basic rates 6Mbps and 1Mbps are supported */
672 error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
673 ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
675 IWL_WARN(priv, "check basic rate %d | %d\n", counter++, error);
677 error |= (le16_to_cpu(rxon->assoc_id) > 2007);
679 IWL_WARN(priv, "check assoc id %d | %d\n", counter++, error);
681 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
682 == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
684 IWL_WARN(priv, "check CCK and short slot %d | %d\n",
687 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
688 == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
690 IWL_WARN(priv, "check CCK & auto detect %d | %d\n",
693 error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
694 RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
696 IWL_WARN(priv, "check TGG and auto detect %d | %d\n",
700 IWL_WARN(priv, "Tuning to channel %d\n",
701 le16_to_cpu(rxon->channel));
704 IWL_ERR(priv, "Not a valid iwl_rxon_assoc_cmd field values\n");
709 EXPORT_SYMBOL(iwl_check_rxon_cmd);
712 * iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
713 * @priv: staging_rxon is compared to active_rxon
715 * If the RXON structure is changing enough to require a new tune,
716 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
717 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
719 int iwl_full_rxon_required(struct iwl_priv *priv)
722 /* These items are only settable from the full RXON command */
723 if (!(iwl_is_associated(priv)) ||
724 compare_ether_addr(priv->staging_rxon.bssid_addr,
725 priv->active_rxon.bssid_addr) ||
726 compare_ether_addr(priv->staging_rxon.node_addr,
727 priv->active_rxon.node_addr) ||
728 compare_ether_addr(priv->staging_rxon.wlap_bssid_addr,
729 priv->active_rxon.wlap_bssid_addr) ||
730 (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) ||
731 (priv->staging_rxon.channel != priv->active_rxon.channel) ||
732 (priv->staging_rxon.air_propagation !=
733 priv->active_rxon.air_propagation) ||
734 (priv->staging_rxon.ofdm_ht_single_stream_basic_rates !=
735 priv->active_rxon.ofdm_ht_single_stream_basic_rates) ||
736 (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates !=
737 priv->active_rxon.ofdm_ht_dual_stream_basic_rates) ||
738 (priv->staging_rxon.ofdm_ht_triple_stream_basic_rates !=
739 priv->active_rxon.ofdm_ht_triple_stream_basic_rates) ||
740 (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id))
743 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
744 * be updated with the RXON_ASSOC command -- however only some
745 * flag transitions are allowed using RXON_ASSOC */
747 /* Check if we are not switching bands */
748 if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
749 (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK))
752 /* Check if we are switching association toggle */
753 if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
754 (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
759 EXPORT_SYMBOL(iwl_full_rxon_required);
761 u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv)
767 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
768 rate_mask = priv->active_rate_basic & IWL_CCK_RATES_MASK;
770 rate_mask = priv->active_rate_basic & IWL_OFDM_RATES_MASK;
772 /* Find lowest valid rate */
773 for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
774 i = iwl_rates[i].next_ieee) {
775 if (rate_mask & (1 << i))
776 return iwl_rates[i].plcp;
779 /* No valid rate was found. Assign the lowest one */
780 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
781 return IWL_RATE_1M_PLCP;
783 return IWL_RATE_6M_PLCP;
785 EXPORT_SYMBOL(iwl_rate_get_lowest_plcp);
787 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info)
789 struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
792 if (!ht_info->is_ht) {
793 rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
794 RXON_FLG_CHANNEL_MODE_PURE_40_MSK |
795 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK |
796 RXON_FLG_FAT_PROT_MSK |
797 RXON_FLG_HT_PROT_MSK);
801 /* Set up channel bandwidth: 20 MHz only, or 20/40 mixed if fat ok */
802 if (iwl_is_fat_tx_allowed(priv, NULL))
803 rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED_MSK;
805 rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
806 RXON_FLG_CHANNEL_MODE_PURE_40_MSK);
808 /* Note: control channel is opposite of extension channel */
809 switch (ht_info->extension_chan_offset) {
810 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
811 rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
813 case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
814 rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
816 case IEEE80211_HT_PARAM_CHA_SEC_NONE:
818 rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK;
822 val = ht_info->ht_protection;
824 rxon->flags |= cpu_to_le32(val << RXON_FLG_HT_OPERATING_MODE_POS);
826 if (priv->cfg->ops->hcmd->set_rxon_chain)
827 priv->cfg->ops->hcmd->set_rxon_chain(priv);
829 IWL_DEBUG_ASSOC(priv, "supported HT rate 0x%X 0x%X 0x%X "
830 "rxon flags 0x%X operation mode :0x%X "
831 "extension channel offset 0x%x\n",
832 ht_info->mcs.rx_mask[0],
833 ht_info->mcs.rx_mask[1],
834 ht_info->mcs.rx_mask[2],
835 le32_to_cpu(rxon->flags), ht_info->ht_protection,
836 ht_info->extension_chan_offset);
839 EXPORT_SYMBOL(iwl_set_rxon_ht);
841 #define IWL_NUM_RX_CHAINS_MULTIPLE 3
842 #define IWL_NUM_RX_CHAINS_SINGLE 2
843 #define IWL_NUM_IDLE_CHAINS_DUAL 2
844 #define IWL_NUM_IDLE_CHAINS_SINGLE 1
846 /* Determine how many receiver/antenna chains to use.
847 * More provides better reception via diversity. Fewer saves power.
848 * MIMO (dual stream) requires at least 2, but works better with 3.
849 * This does not determine *which* chains to use, just how many.
851 static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)
853 bool is_single = is_single_rx_stream(priv);
854 bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
856 /* # of Rx chains to use when expecting MIMO. */
857 if (is_single || (!is_cam && (priv->current_ht_config.sm_ps ==
858 WLAN_HT_CAP_SM_PS_STATIC)))
859 return IWL_NUM_RX_CHAINS_SINGLE;
861 return IWL_NUM_RX_CHAINS_MULTIPLE;
864 static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
867 bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
868 /* # Rx chains when idling and maybe trying to save power */
869 switch (priv->current_ht_config.sm_ps) {
870 case WLAN_HT_CAP_SM_PS_STATIC:
871 case WLAN_HT_CAP_SM_PS_DYNAMIC:
872 idle_cnt = (is_cam) ? IWL_NUM_IDLE_CHAINS_DUAL :
873 IWL_NUM_IDLE_CHAINS_SINGLE;
875 case WLAN_HT_CAP_SM_PS_DISABLED:
876 idle_cnt = (is_cam) ? active_cnt : IWL_NUM_IDLE_CHAINS_SINGLE;
878 case WLAN_HT_CAP_SM_PS_INVALID:
880 IWL_ERR(priv, "invalid mimo ps mode %d\n",
881 priv->current_ht_config.sm_ps);
890 static u8 iwl_count_chain_bitmap(u32 chain_bitmap)
893 res = (chain_bitmap & BIT(0)) >> 0;
894 res += (chain_bitmap & BIT(1)) >> 1;
895 res += (chain_bitmap & BIT(2)) >> 2;
896 res += (chain_bitmap & BIT(4)) >> 4;
901 * iwl_is_monitor_mode - Determine if interface in monitor mode
903 * priv->iw_mode is set in add_interface, but add_interface is
904 * never called for monitor mode. The only way mac80211 informs us about
905 * monitor mode is through configuring filters (call to configure_filter).
907 bool iwl_is_monitor_mode(struct iwl_priv *priv)
909 return !!(priv->staging_rxon.filter_flags & RXON_FILTER_PROMISC_MSK);
911 EXPORT_SYMBOL(iwl_is_monitor_mode);
914 * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
916 * Selects how many and which Rx receivers/antennas/chains to use.
917 * This should not be used for scan command ... it puts data in wrong place.
919 void iwl_set_rxon_chain(struct iwl_priv *priv)
921 bool is_single = is_single_rx_stream(priv);
922 bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
923 u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt;
927 /* Tell uCode which antennas are actually connected.
928 * Before first association, we assume all antennas are connected.
929 * Just after first association, iwl_chain_noise_calibration()
930 * checks which antennas actually *are* connected. */
931 if (priv->chain_noise_data.active_chains)
932 active_chains = priv->chain_noise_data.active_chains;
934 active_chains = priv->hw_params.valid_rx_ant;
936 rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS;
938 /* How many receivers should we use? */
939 active_rx_cnt = iwl_get_active_rx_chain_count(priv);
940 idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt);
943 /* correct rx chain count according hw settings
944 * and chain noise calibration
946 valid_rx_cnt = iwl_count_chain_bitmap(active_chains);
947 if (valid_rx_cnt < active_rx_cnt)
948 active_rx_cnt = valid_rx_cnt;
950 if (valid_rx_cnt < idle_rx_cnt)
951 idle_rx_cnt = valid_rx_cnt;
953 rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS;
954 rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS;
956 /* copied from 'iwl_bg_request_scan()' */
957 /* Force use of chains B and C (0x6) for Rx for 4965
958 * Avoid A (0x1) because of its off-channel reception on A-band.
959 * MIMO is not used here, but value is required */
960 if (iwl_is_monitor_mode(priv) &&
961 !(priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) &&
962 ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965)) {
963 rx_chain = 0x07 << RXON_RX_CHAIN_VALID_POS;
964 rx_chain |= 0x06 << RXON_RX_CHAIN_FORCE_SEL_POS;
965 rx_chain |= 0x07 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS;
966 rx_chain |= 0x01 << RXON_RX_CHAIN_DRIVER_FORCE_POS;
969 priv->staging_rxon.rx_chain = cpu_to_le16(rx_chain);
971 if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam)
972 priv->staging_rxon.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;
974 priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
976 IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n",
977 priv->staging_rxon.rx_chain,
978 active_rx_cnt, idle_rx_cnt);
980 WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 ||
981 active_rx_cnt < idle_rx_cnt);
983 EXPORT_SYMBOL(iwl_set_rxon_chain);
986 * iwl_set_rxon_channel - Set the phymode and channel values in staging RXON
987 * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
988 * @channel: Any channel valid for the requested phymode
990 * In addition to setting the staging RXON, priv->phymode is also set.
992 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
993 * in the staging RXON flag structure based on the phymode
995 int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch)
997 enum ieee80211_band band = ch->band;
998 u16 channel = ieee80211_frequency_to_channel(ch->center_freq);
1000 if (!iwl_get_channel_info(priv, band, channel)) {
1001 IWL_DEBUG_INFO(priv, "Could not set channel to %d [%d]\n",
1006 if ((le16_to_cpu(priv->staging_rxon.channel) == channel) &&
1007 (priv->band == band))
1010 priv->staging_rxon.channel = cpu_to_le16(channel);
1011 if (band == IEEE80211_BAND_5GHZ)
1012 priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK;
1014 priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
1018 IWL_DEBUG_INFO(priv, "Staging channel set to %d [%d]\n", channel, band);
1022 EXPORT_SYMBOL(iwl_set_rxon_channel);
1024 void iwl_set_flags_for_band(struct iwl_priv *priv,
1025 enum ieee80211_band band)
1027 if (band == IEEE80211_BAND_5GHZ) {
1028 priv->staging_rxon.flags &=
1029 ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
1030 | RXON_FLG_CCK_MSK);
1031 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1033 /* Copied from iwl_post_associate() */
1034 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
1035 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1037 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1039 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
1040 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1042 priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
1043 priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
1044 priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
1047 EXPORT_SYMBOL(iwl_set_flags_for_band);
1050 * initialize rxon structure with default values from eeprom
1052 void iwl_connection_init_rx_config(struct iwl_priv *priv, int mode)
1054 const struct iwl_channel_info *ch_info;
1056 memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
1059 case NL80211_IFTYPE_AP:
1060 priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP;
1063 case NL80211_IFTYPE_STATION:
1064 priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS;
1065 priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
1068 case NL80211_IFTYPE_ADHOC:
1069 priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS;
1070 priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
1071 priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
1072 RXON_FILTER_ACCEPT_GRP_MSK;
1076 IWL_ERR(priv, "Unsupported interface type %d\n", mode);
1081 /* TODO: Figure out when short_preamble would be set and cache from
1083 if (!hw_to_local(priv->hw)->short_preamble)
1084 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
1086 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
1089 ch_info = iwl_get_channel_info(priv, priv->band,
1090 le16_to_cpu(priv->active_rxon.channel));
1093 ch_info = &priv->channel_info[0];
1096 * in some case A channels are all non IBSS
1097 * in this case force B/G channel
1099 if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) &&
1100 !(is_channel_ibss(ch_info)))
1101 ch_info = &priv->channel_info[0];
1103 priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
1104 priv->band = ch_info->band;
1106 iwl_set_flags_for_band(priv, priv->band);
1108 priv->staging_rxon.ofdm_basic_rates =
1109 (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
1110 priv->staging_rxon.cck_basic_rates =
1111 (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
1113 priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
1114 RXON_FLG_CHANNEL_MODE_PURE_40_MSK);
1115 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
1116 memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN);
1117 priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff;
1118 priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff;
1119 priv->staging_rxon.ofdm_ht_triple_stream_basic_rates = 0xff;
1121 EXPORT_SYMBOL(iwl_connection_init_rx_config);
1123 static void iwl_set_rate(struct iwl_priv *priv)
1125 const struct ieee80211_supported_band *hw = NULL;
1126 struct ieee80211_rate *rate;
1129 hw = iwl_get_hw_mode(priv, priv->band);
1131 IWL_ERR(priv, "Failed to set rate: unable to get hw mode\n");
1135 priv->active_rate = 0;
1136 priv->active_rate_basic = 0;
1138 for (i = 0; i < hw->n_bitrates; i++) {
1139 rate = &(hw->bitrates[i]);
1140 if (rate->hw_value < IWL_RATE_COUNT)
1141 priv->active_rate |= (1 << rate->hw_value);
1144 IWL_DEBUG_RATE(priv, "Set active_rate = %0x, active_rate_basic = %0x\n",
1145 priv->active_rate, priv->active_rate_basic);
1148 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
1149 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
1152 if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
1153 priv->staging_rxon.cck_basic_rates =
1154 ((priv->active_rate_basic &
1155 IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
1157 priv->staging_rxon.cck_basic_rates =
1158 (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
1160 if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
1161 priv->staging_rxon.ofdm_basic_rates =
1162 ((priv->active_rate_basic &
1163 (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
1164 IWL_FIRST_OFDM_RATE) & 0xFF;
1166 priv->staging_rxon.ofdm_basic_rates =
1167 (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
1170 void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
1172 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1173 struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon;
1174 struct iwl_csa_notification *csa = &(pkt->u.csa_notif);
1175 IWL_DEBUG_11H(priv, "CSA notif: channel %d, status %d\n",
1176 le16_to_cpu(csa->channel), le32_to_cpu(csa->status));
1177 rxon->channel = csa->channel;
1178 priv->staging_rxon.channel = csa->channel;
1180 EXPORT_SYMBOL(iwl_rx_csa);
1182 #ifdef CONFIG_IWLWIFI_DEBUG
1183 static void iwl_print_rx_config_cmd(struct iwl_priv *priv)
1185 struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
1187 IWL_DEBUG_RADIO(priv, "RX CONFIG:\n");
1188 iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
1189 IWL_DEBUG_RADIO(priv, "u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
1190 IWL_DEBUG_RADIO(priv, "u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
1191 IWL_DEBUG_RADIO(priv, "u32 filter_flags: 0x%08x\n",
1192 le32_to_cpu(rxon->filter_flags));
1193 IWL_DEBUG_RADIO(priv, "u8 dev_type: 0x%x\n", rxon->dev_type);
1194 IWL_DEBUG_RADIO(priv, "u8 ofdm_basic_rates: 0x%02x\n",
1195 rxon->ofdm_basic_rates);
1196 IWL_DEBUG_RADIO(priv, "u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
1197 IWL_DEBUG_RADIO(priv, "u8[6] node_addr: %pM\n", rxon->node_addr);
1198 IWL_DEBUG_RADIO(priv, "u8[6] bssid_addr: %pM\n", rxon->bssid_addr);
1199 IWL_DEBUG_RADIO(priv, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
1204 * iwl_irq_handle_error - called for HW or SW error interrupt from card
1206 void iwl_irq_handle_error(struct iwl_priv *priv)
1208 /* Set the FW error flag -- cleared on iwl_down */
1209 set_bit(STATUS_FW_ERROR, &priv->status);
1211 /* Cancel currently queued command. */
1212 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
1214 #ifdef CONFIG_IWLWIFI_DEBUG
1215 if (priv->debug_level & IWL_DL_FW_ERRORS) {
1216 iwl_dump_nic_error_log(priv);
1217 iwl_dump_nic_event_log(priv);
1218 iwl_print_rx_config_cmd(priv);
1222 wake_up_interruptible(&priv->wait_command_queue);
1224 /* Keep the restart process from trying to send host
1225 * commands by clearing the INIT status bit */
1226 clear_bit(STATUS_READY, &priv->status);
1228 if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
1229 IWL_DEBUG(priv, IWL_DL_FW_ERRORS,
1230 "Restarting adapter due to uCode error.\n");
1232 if (iwl_is_associated(priv)) {
1233 memcpy(&priv->recovery_rxon, &priv->active_rxon,
1234 sizeof(priv->recovery_rxon));
1235 priv->error_recovering = 1;
1237 if (priv->cfg->mod_params->restart_fw)
1238 queue_work(priv->workqueue, &priv->restart);
1241 EXPORT_SYMBOL(iwl_irq_handle_error);
1243 void iwl_configure_filter(struct ieee80211_hw *hw,
1244 unsigned int changed_flags,
1245 unsigned int *total_flags,
1246 int mc_count, struct dev_addr_list *mc_list)
1248 struct iwl_priv *priv = hw->priv;
1249 __le32 *filter_flags = &priv->staging_rxon.filter_flags;
1251 IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
1252 changed_flags, *total_flags);
1254 if (changed_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) {
1255 if (*total_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS))
1256 *filter_flags |= RXON_FILTER_PROMISC_MSK;
1258 *filter_flags &= ~RXON_FILTER_PROMISC_MSK;
1260 if (changed_flags & FIF_ALLMULTI) {
1261 if (*total_flags & FIF_ALLMULTI)
1262 *filter_flags |= RXON_FILTER_ACCEPT_GRP_MSK;
1264 *filter_flags &= ~RXON_FILTER_ACCEPT_GRP_MSK;
1266 if (changed_flags & FIF_CONTROL) {
1267 if (*total_flags & FIF_CONTROL)
1268 *filter_flags |= RXON_FILTER_CTL2HOST_MSK;
1270 *filter_flags &= ~RXON_FILTER_CTL2HOST_MSK;
1272 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
1273 if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
1274 *filter_flags |= RXON_FILTER_BCON_AWARE_MSK;
1276 *filter_flags &= ~RXON_FILTER_BCON_AWARE_MSK;
1279 /* We avoid iwl_commit_rxon here to commit the new filter flags
1280 * since mac80211 will call ieee80211_hw_config immediately.
1281 * (mc_list is not supported at this time). Otherwise, we need to
1282 * queue a background iwl_commit_rxon work.
1285 *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
1286 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
1288 EXPORT_SYMBOL(iwl_configure_filter);
1290 int iwl_setup_mac(struct iwl_priv *priv)
1293 struct ieee80211_hw *hw = priv->hw;
1294 hw->rate_control_algorithm = "iwl-agn-rs";
1296 /* Tell mac80211 our characteristics */
1297 hw->flags = IEEE80211_HW_SIGNAL_DBM |
1298 IEEE80211_HW_NOISE_DBM |
1299 IEEE80211_HW_AMPDU_AGGREGATION |
1300 IEEE80211_HW_SPECTRUM_MGMT;
1301 hw->wiphy->interface_modes =
1302 BIT(NL80211_IFTYPE_STATION) |
1303 BIT(NL80211_IFTYPE_ADHOC);
1305 hw->wiphy->custom_regulatory = true;
1307 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
1308 /* we create the 802.11 header and a zero-length SSID element */
1309 hw->wiphy->max_scan_ie_len = IWL_MAX_PROBE_REQUEST - 24 - 2;
1311 /* Default value; 4 EDCA QOS priorities */
1314 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
1316 if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
1317 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
1318 &priv->bands[IEEE80211_BAND_2GHZ];
1319 if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
1320 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
1321 &priv->bands[IEEE80211_BAND_5GHZ];
1323 ret = ieee80211_register_hw(priv->hw);
1325 IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
1328 priv->mac80211_registered = 1;
1332 EXPORT_SYMBOL(iwl_setup_mac);
1334 int iwl_set_hw_params(struct iwl_priv *priv)
1336 priv->hw_params.sw_crypto = priv->cfg->mod_params->sw_crypto;
1337 priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
1338 priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
1339 if (priv->cfg->mod_params->amsdu_size_8K)
1340 priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_8K;
1342 priv->hw_params.rx_buf_size = IWL_RX_BUF_SIZE_4K;
1343 priv->hw_params.max_pkt_size = priv->hw_params.rx_buf_size - 256;
1345 if (priv->cfg->mod_params->disable_11n)
1346 priv->cfg->sku &= ~IWL_SKU_N;
1348 /* Device-specific setup */
1349 return priv->cfg->ops->lib->set_hw_params(priv);
1351 EXPORT_SYMBOL(iwl_set_hw_params);
1353 int iwl_init_drv(struct iwl_priv *priv)
1357 priv->ibss_beacon = NULL;
1359 spin_lock_init(&priv->lock);
1360 spin_lock_init(&priv->power_data.lock);
1361 spin_lock_init(&priv->sta_lock);
1362 spin_lock_init(&priv->hcmd_lock);
1364 INIT_LIST_HEAD(&priv->free_frames);
1366 mutex_init(&priv->mutex);
1368 /* Clear the driver's (not device's) station table */
1369 priv->cfg->ops->smgmt->clear_station_table(priv);
1371 priv->data_retry_limit = -1;
1372 priv->ieee_channels = NULL;
1373 priv->ieee_rates = NULL;
1374 priv->band = IEEE80211_BAND_2GHZ;
1376 priv->iw_mode = NL80211_IFTYPE_STATION;
1378 priv->current_ht_config.sm_ps = WLAN_HT_CAP_SM_PS_DISABLED;
1380 /* Choose which receivers/antennas to use */
1381 if (priv->cfg->ops->hcmd->set_rxon_chain)
1382 priv->cfg->ops->hcmd->set_rxon_chain(priv);
1384 iwl_init_scan_params(priv);
1386 iwl_reset_qos(priv);
1388 priv->qos_data.qos_active = 0;
1389 priv->qos_data.qos_cap.val = 0;
1391 priv->rates_mask = IWL_RATES_MASK;
1392 /* If power management is turned on, default to CAM mode */
1393 priv->power_mode = IWL_POWER_MODE_CAM;
1394 priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MAX;
1396 ret = iwl_init_channel_map(priv);
1398 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
1402 ret = iwlcore_init_geos(priv);
1404 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
1405 goto err_free_channel_map;
1407 iwlcore_init_hw_rates(priv, priv->ieee_rates);
1411 err_free_channel_map:
1412 iwl_free_channel_map(priv);
1416 EXPORT_SYMBOL(iwl_init_drv);
1418 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
1421 if (tx_power < IWL_TX_POWER_TARGET_POWER_MIN) {
1422 IWL_WARN(priv, "Requested user TXPOWER %d below lower limit %d.\n",
1424 IWL_TX_POWER_TARGET_POWER_MIN);
1428 if (tx_power > IWL_TX_POWER_TARGET_POWER_MAX) {
1429 IWL_WARN(priv, "Requested user TXPOWER %d above upper limit %d.\n",
1431 IWL_TX_POWER_TARGET_POWER_MAX);
1435 if (priv->tx_power_user_lmt != tx_power)
1438 priv->tx_power_user_lmt = tx_power;
1440 /* if nic is not up don't send command */
1441 if (!iwl_is_ready_rf(priv))
1444 if (force && priv->cfg->ops->lib->send_tx_power)
1445 ret = priv->cfg->ops->lib->send_tx_power(priv);
1449 EXPORT_SYMBOL(iwl_set_tx_power);
1451 void iwl_uninit_drv(struct iwl_priv *priv)
1453 iwl_calib_free_results(priv);
1454 iwlcore_free_geos(priv);
1455 iwl_free_channel_map(priv);
1458 EXPORT_SYMBOL(iwl_uninit_drv);
1461 void iwl_disable_interrupts(struct iwl_priv *priv)
1463 clear_bit(STATUS_INT_ENABLED, &priv->status);
1465 /* disable interrupts from uCode/NIC to host */
1466 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
1468 /* acknowledge/clear/reset any interrupts still pending
1469 * from uCode or flow handler (Rx/Tx DMA) */
1470 iwl_write32(priv, CSR_INT, 0xffffffff);
1471 iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
1472 IWL_DEBUG_ISR(priv, "Disabled interrupts\n");
1474 EXPORT_SYMBOL(iwl_disable_interrupts);
1476 void iwl_enable_interrupts(struct iwl_priv *priv)
1478 IWL_DEBUG_ISR(priv, "Enabling interrupts\n");
1479 set_bit(STATUS_INT_ENABLED, &priv->status);
1480 iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
1482 EXPORT_SYMBOL(iwl_enable_interrupts);
1484 irqreturn_t iwl_isr(int irq, void *data)
1486 struct iwl_priv *priv = data;
1487 u32 inta, inta_mask;
1492 spin_lock(&priv->lock);
1494 /* Disable (but don't clear!) interrupts here to avoid
1495 * back-to-back ISRs and sporadic interrupts from our NIC.
1496 * If we have something to service, the tasklet will re-enable ints.
1497 * If we *don't* have something, we'll re-enable before leaving here. */
1498 inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
1499 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
1501 /* Discover which interrupts are active/pending */
1502 inta = iwl_read32(priv, CSR_INT);
1503 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1505 /* Ignore interrupt if there's nothing in NIC to service.
1506 * This may be due to IRQ shared with another device,
1507 * or due to sporadic interrupts thrown from our NIC. */
1508 if (!inta && !inta_fh) {
1509 IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0, inta_fh == 0\n");
1513 if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
1514 /* Hardware disappeared. It might have already raised
1516 IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta);
1520 IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1521 inta, inta_mask, inta_fh);
1523 inta &= ~CSR_INT_BIT_SCD;
1525 /* iwl_irq_tasklet() will service interrupts and re-enable them */
1526 if (likely(inta || inta_fh))
1527 tasklet_schedule(&priv->irq_tasklet);
1530 spin_unlock(&priv->lock);
1534 /* re-enable interrupts here since we don't have anything to service. */
1535 /* only Re-enable if diabled by irq */
1536 if (test_bit(STATUS_INT_ENABLED, &priv->status))
1537 iwl_enable_interrupts(priv);
1538 spin_unlock(&priv->lock);
1541 EXPORT_SYMBOL(iwl_isr);
1543 int iwl_send_bt_config(struct iwl_priv *priv)
1545 struct iwl_bt_cmd bt_cmd = {
1553 return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
1554 sizeof(struct iwl_bt_cmd), &bt_cmd);
1556 EXPORT_SYMBOL(iwl_send_bt_config);
1558 int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags)
1561 struct iwl_host_cmd cmd = {
1562 .id = REPLY_STATISTICS_CMD,
1563 .meta.flags = flags,
1564 .len = sizeof(stat_flags),
1565 .data = (u8 *) &stat_flags,
1567 return iwl_send_cmd(priv, &cmd);
1569 EXPORT_SYMBOL(iwl_send_statistics_request);
1572 * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
1573 * using sample data 100 bytes apart. If these sample points are good,
1574 * it's a pretty good bet that everything between them is good, too.
1576 static int iwlcore_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
1583 IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
1585 ret = iwl_grab_nic_access(priv);
1589 for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
1590 /* read data comes through single port, auto-incr addr */
1591 /* NOTE: Use the debugless read so we don't flood kernel log
1592 * if IWL_DL_IO is set */
1593 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
1594 i + IWL49_RTC_INST_LOWER_BOUND);
1595 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
1596 if (val != le32_to_cpu(*image)) {
1604 iwl_release_nic_access(priv);
1610 * iwlcore_verify_inst_full - verify runtime uCode image in card vs. host,
1611 * looking at all data.
1613 static int iwl_verify_inst_full(struct iwl_priv *priv, __le32 *image,
1621 IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
1623 ret = iwl_grab_nic_access(priv);
1627 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
1628 IWL49_RTC_INST_LOWER_BOUND);
1631 for (; len > 0; len -= sizeof(u32), image++) {
1632 /* read data comes through single port, auto-incr addr */
1633 /* NOTE: Use the debugless read so we don't flood kernel log
1634 * if IWL_DL_IO is set */
1635 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
1636 if (val != le32_to_cpu(*image)) {
1637 IWL_ERR(priv, "uCode INST section is invalid at "
1638 "offset 0x%x, is 0x%x, s/b 0x%x\n",
1639 save_len - len, val, le32_to_cpu(*image));
1647 iwl_release_nic_access(priv);
1650 IWL_DEBUG_INFO(priv,
1651 "ucode image in INSTRUCTION memory is good\n");
1657 * iwl_verify_ucode - determine which instruction image is in SRAM,
1658 * and verify its contents
1660 int iwl_verify_ucode(struct iwl_priv *priv)
1667 image = (__le32 *)priv->ucode_boot.v_addr;
1668 len = priv->ucode_boot.len;
1669 ret = iwlcore_verify_inst_sparse(priv, image, len);
1671 IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n");
1675 /* Try initialize */
1676 image = (__le32 *)priv->ucode_init.v_addr;
1677 len = priv->ucode_init.len;
1678 ret = iwlcore_verify_inst_sparse(priv, image, len);
1680 IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n");
1684 /* Try runtime/protocol */
1685 image = (__le32 *)priv->ucode_code.v_addr;
1686 len = priv->ucode_code.len;
1687 ret = iwlcore_verify_inst_sparse(priv, image, len);
1689 IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n");
1693 IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
1695 /* Since nothing seems to match, show first several data entries in
1696 * instruction SRAM, so maybe visual inspection will give a clue.
1697 * Selection of bootstrap image (vs. other images) is arbitrary. */
1698 image = (__le32 *)priv->ucode_boot.v_addr;
1699 len = priv->ucode_boot.len;
1700 ret = iwl_verify_inst_full(priv, image, len);
1704 EXPORT_SYMBOL(iwl_verify_ucode);
1707 static const char *desc_lookup_text[] = {
1712 "NMI_INTERRUPT_WDG",
1716 "HW_ERROR_TUNE_LOCK",
1717 "HW_ERROR_TEMPERATURE",
1718 "ILLEGAL_CHAN_FREQ",
1721 "NMI_INTERRUPT_HOST",
1722 "NMI_INTERRUPT_ACTION_PT",
1723 "NMI_INTERRUPT_UNKNOWN",
1724 "UCODE_VERSION_MISMATCH",
1725 "HW_ERROR_ABS_LOCK",
1726 "HW_ERROR_CAL_LOCK_FAIL",
1727 "NMI_INTERRUPT_INST_ACTION_PT",
1728 "NMI_INTERRUPT_DATA_ACTION_PT",
1730 "NMI_INTERRUPT_TRM",
1731 "NMI_INTERRUPT_BREAK_POINT"
1739 static const char *desc_lookup(int i)
1741 int max = ARRAY_SIZE(desc_lookup_text) - 1;
1743 if (i < 0 || i > max)
1746 return desc_lookup_text[i];
1749 #define ERROR_START_OFFSET (1 * sizeof(u32))
1750 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1752 void iwl_dump_nic_error_log(struct iwl_priv *priv)
1755 u32 desc, time, count, base, data1;
1756 u32 blink1, blink2, ilink1, ilink2;
1759 if (priv->ucode_type == UCODE_INIT)
1760 base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
1762 base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
1764 if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
1765 IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base);
1769 ret = iwl_grab_nic_access(priv);
1771 IWL_WARN(priv, "Can not read from adapter at this time.\n");
1775 count = iwl_read_targ_mem(priv, base);
1777 if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
1778 IWL_ERR(priv, "Start IWL Error Log Dump:\n");
1779 IWL_ERR(priv, "Status: 0x%08lX, count: %d\n",
1780 priv->status, count);
1783 desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32));
1784 blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32));
1785 blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32));
1786 ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32));
1787 ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32));
1788 data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32));
1789 data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32));
1790 line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32));
1791 time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32));
1793 IWL_ERR(priv, "Desc Time "
1794 "data1 data2 line\n");
1795 IWL_ERR(priv, "%-28s (#%02d) %010u 0x%08X 0x%08X %u\n",
1796 desc_lookup(desc), desc, time, data1, data2, line);
1797 IWL_ERR(priv, "blink1 blink2 ilink1 ilink2\n");
1798 IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2,
1801 iwl_release_nic_access(priv);
1803 EXPORT_SYMBOL(iwl_dump_nic_error_log);
1805 #define EVENT_START_OFFSET (4 * sizeof(u32))
1808 * iwl_print_event_log - Dump error event log to syslog
1810 * NOTE: Must be called with iwl_grab_nic_access() already obtained!
1812 static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
1813 u32 num_events, u32 mode)
1816 u32 base; /* SRAM byte address of event log header */
1817 u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
1818 u32 ptr; /* SRAM byte address of log data */
1819 u32 ev, time, data; /* event log data */
1821 if (num_events == 0)
1823 if (priv->ucode_type == UCODE_INIT)
1824 base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
1826 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
1829 event_size = 2 * sizeof(u32);
1831 event_size = 3 * sizeof(u32);
1833 ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
1835 /* "time" is actually "data" for mode 0 (no timestamp).
1836 * place event id # at far right for easier visual parsing. */
1837 for (i = 0; i < num_events; i++) {
1838 ev = iwl_read_targ_mem(priv, ptr);
1840 time = iwl_read_targ_mem(priv, ptr);
1844 IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n", time, ev);
1846 data = iwl_read_targ_mem(priv, ptr);
1848 IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
1854 void iwl_dump_nic_event_log(struct iwl_priv *priv)
1857 u32 base; /* SRAM byte address of event log header */
1858 u32 capacity; /* event log capacity in # entries */
1859 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
1860 u32 num_wraps; /* # times uCode wrapped to top of log */
1861 u32 next_entry; /* index of next entry to be written by uCode */
1862 u32 size; /* # entries that we'll print */
1864 if (priv->ucode_type == UCODE_INIT)
1865 base = le32_to_cpu(priv->card_alive_init.log_event_table_ptr);
1867 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
1869 if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
1870 IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
1874 ret = iwl_grab_nic_access(priv);
1876 IWL_WARN(priv, "Can not read from adapter at this time.\n");
1880 /* event log header */
1881 capacity = iwl_read_targ_mem(priv, base);
1882 mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
1883 num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
1884 next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
1886 size = num_wraps ? capacity : next_entry;
1888 /* bail out if nothing in log */
1890 IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
1891 iwl_release_nic_access(priv);
1895 IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n",
1898 /* if uCode has wrapped back to top of log, start at the oldest entry,
1899 * i.e the next one that uCode would fill. */
1901 iwl_print_event_log(priv, next_entry,
1902 capacity - next_entry, mode);
1903 /* (then/else) start at top of log */
1904 iwl_print_event_log(priv, 0, next_entry, mode);
1906 iwl_release_nic_access(priv);
1908 EXPORT_SYMBOL(iwl_dump_nic_event_log);
1910 void iwl_rf_kill_ct_config(struct iwl_priv *priv)
1912 struct iwl_ct_kill_config cmd;
1913 unsigned long flags;
1916 spin_lock_irqsave(&priv->lock, flags);
1917 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
1918 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
1919 spin_unlock_irqrestore(&priv->lock, flags);
1921 cmd.critical_temperature_R =
1922 cpu_to_le32(priv->hw_params.ct_kill_threshold);
1924 ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
1927 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1929 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD succeeded, "
1930 "critical temperature is %d\n",
1931 cmd.critical_temperature_R);
1933 EXPORT_SYMBOL(iwl_rf_kill_ct_config);
1939 * Use: Sets the device's internal card state to enable, disable, or halt
1941 * When in the 'enable' state the card operates as normal.
1942 * When in the 'disable' state, the card enters into a low power mode.
1943 * When in the 'halt' state, the card is shut down and must be fully
1944 * restarted to come back on.
1946 int iwl_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag)
1948 struct iwl_host_cmd cmd = {
1949 .id = REPLY_CARD_STATE_CMD,
1952 .meta.flags = meta_flag,
1955 return iwl_send_cmd(priv, &cmd);
1957 EXPORT_SYMBOL(iwl_send_card_state);
1959 void iwl_radio_kill_sw_disable_radio(struct iwl_priv *priv)
1961 unsigned long flags;
1963 if (test_bit(STATUS_RF_KILL_SW, &priv->status))
1966 IWL_DEBUG_RF_KILL(priv, "Manual SW RF KILL set to: RADIO OFF\n");
1968 iwl_scan_cancel(priv);
1969 /* FIXME: This is a workaround for AP */
1970 if (priv->iw_mode != NL80211_IFTYPE_AP) {
1971 spin_lock_irqsave(&priv->lock, flags);
1972 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
1973 CSR_UCODE_SW_BIT_RFKILL);
1974 spin_unlock_irqrestore(&priv->lock, flags);
1975 /* call the host command only if no hw rf-kill set */
1976 if (!test_bit(STATUS_RF_KILL_HW, &priv->status) &&
1978 iwl_send_card_state(priv,
1979 CARD_STATE_CMD_DISABLE, 0);
1980 set_bit(STATUS_RF_KILL_SW, &priv->status);
1981 /* make sure mac80211 stop sending Tx frame */
1982 if (priv->mac80211_registered)
1983 ieee80211_stop_queues(priv->hw);
1986 EXPORT_SYMBOL(iwl_radio_kill_sw_disable_radio);
1988 int iwl_radio_kill_sw_enable_radio(struct iwl_priv *priv)
1990 unsigned long flags;
1992 if (!test_bit(STATUS_RF_KILL_SW, &priv->status))
1995 IWL_DEBUG_RF_KILL(priv, "Manual SW RF KILL set to: RADIO ON\n");
1997 spin_lock_irqsave(&priv->lock, flags);
1998 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2000 /* If the driver is up it will receive CARD_STATE_NOTIFICATION
2001 * notification where it will clear SW rfkill status.
2002 * Setting it here would break the handler. Only if the
2003 * interface is down we can set here since we don't
2004 * receive any further notification.
2007 clear_bit(STATUS_RF_KILL_SW, &priv->status);
2008 spin_unlock_irqrestore(&priv->lock, flags);
2013 spin_lock_irqsave(&priv->lock, flags);
2014 iwl_read32(priv, CSR_UCODE_DRV_GP1);
2015 if (!iwl_grab_nic_access(priv))
2016 iwl_release_nic_access(priv);
2017 spin_unlock_irqrestore(&priv->lock, flags);
2019 if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
2020 IWL_DEBUG_RF_KILL(priv, "Can not turn radio back on - "
2021 "disabled by HW switch\n");
2025 /* when driver is up while rfkill is on, it wont receive
2026 * any CARD_STATE_NOTIFICATION notifications so we have to
2027 * restart it in here
2029 if (priv->is_open && !test_bit(STATUS_ALIVE, &priv->status)) {
2030 clear_bit(STATUS_RF_KILL_SW, &priv->status);
2031 if (!iwl_is_rfkill(priv))
2032 queue_work(priv->workqueue, &priv->up);
2035 /* If the driver is already loaded, it will receive
2036 * CARD_STATE_NOTIFICATION notifications and the handler will
2037 * call restart to reload the driver.
2041 EXPORT_SYMBOL(iwl_radio_kill_sw_enable_radio);
2043 void iwl_bg_rf_kill(struct work_struct *work)
2045 struct iwl_priv *priv = container_of(work, struct iwl_priv, rf_kill);
2047 wake_up_interruptible(&priv->wait_command_queue);
2049 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2052 mutex_lock(&priv->mutex);
2054 if (!iwl_is_rfkill(priv)) {
2055 IWL_DEBUG_RF_KILL(priv,
2056 "HW and/or SW RF Kill no longer active, restarting "
2058 if (!test_bit(STATUS_EXIT_PENDING, &priv->status) &&
2060 queue_work(priv->workqueue, &priv->restart);
2062 /* make sure mac80211 stop sending Tx frame */
2063 if (priv->mac80211_registered)
2064 ieee80211_stop_queues(priv->hw);
2066 if (!test_bit(STATUS_RF_KILL_HW, &priv->status))
2067 IWL_DEBUG_RF_KILL(priv, "Can not turn radio back on - "
2068 "disabled by SW switch\n");
2070 IWL_WARN(priv, "Radio Frequency Kill Switch is On:\n"
2071 "Kill switch must be turned off for "
2072 "wireless networking to work.\n");
2074 mutex_unlock(&priv->mutex);
2075 iwl_rfkill_set_hw_state(priv);
2077 EXPORT_SYMBOL(iwl_bg_rf_kill);
2079 void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
2080 struct iwl_rx_mem_buffer *rxb)
2082 #ifdef CONFIG_IWLWIFI_DEBUG
2083 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
2084 struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif);
2085 IWL_DEBUG_RX(priv, "sleep mode: %d, src: %d\n",
2086 sleep->pm_sleep_mode, sleep->pm_wakeup_src);
2089 EXPORT_SYMBOL(iwl_rx_pm_sleep_notif);
2091 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
2092 struct iwl_rx_mem_buffer *rxb)
2094 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
2095 IWL_DEBUG_RADIO(priv, "Dumping %d bytes of unhandled "
2096 "notification for %s:\n",
2097 le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
2098 iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
2100 EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif);
2102 void iwl_rx_reply_error(struct iwl_priv *priv,
2103 struct iwl_rx_mem_buffer *rxb)
2105 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
2107 IWL_ERR(priv, "Error Reply type 0x%08X cmd %s (0x%02X) "
2108 "seq 0x%04X ser 0x%08X\n",
2109 le32_to_cpu(pkt->u.err_resp.error_type),
2110 get_cmd_string(pkt->u.err_resp.cmd_id),
2111 pkt->u.err_resp.cmd_id,
2112 le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
2113 le32_to_cpu(pkt->u.err_resp.error_info));
2115 EXPORT_SYMBOL(iwl_rx_reply_error);
2117 void iwl_clear_isr_stats(struct iwl_priv *priv)
2119 memset(&priv->isr_stats, 0, sizeof(priv->isr_stats));
2121 EXPORT_SYMBOL(iwl_clear_isr_stats);
2123 int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
2124 const struct ieee80211_tx_queue_params *params)
2126 struct iwl_priv *priv = hw->priv;
2127 unsigned long flags;
2130 IWL_DEBUG_MAC80211(priv, "enter\n");
2132 if (!iwl_is_ready_rf(priv)) {
2133 IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
2137 if (queue >= AC_NUM) {
2138 IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue);
2142 q = AC_NUM - 1 - queue;
2144 spin_lock_irqsave(&priv->lock, flags);
2146 priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
2147 priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
2148 priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
2149 priv->qos_data.def_qos_parm.ac[q].edca_txop =
2150 cpu_to_le16((params->txop * 32));
2152 priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
2153 priv->qos_data.qos_active = 1;
2155 if (priv->iw_mode == NL80211_IFTYPE_AP)
2156 iwl_activate_qos(priv, 1);
2157 else if (priv->assoc_id && iwl_is_associated(priv))
2158 iwl_activate_qos(priv, 0);
2160 spin_unlock_irqrestore(&priv->lock, flags);
2162 IWL_DEBUG_MAC80211(priv, "leave\n");
2165 EXPORT_SYMBOL(iwl_mac_conf_tx);
2167 static void iwl_ht_conf(struct iwl_priv *priv,
2168 struct ieee80211_bss_conf *bss_conf)
2170 struct ieee80211_sta_ht_cap *ht_conf;
2171 struct iwl_ht_info *iwl_conf = &priv->current_ht_config;
2172 struct ieee80211_sta *sta;
2174 IWL_DEBUG_MAC80211(priv, "enter: \n");
2176 if (!iwl_conf->is_ht)
2181 * It is totally wrong to base global information on something
2182 * that is valid only when associated, alas, this driver works
2183 * that way and I don't know how to fix it.
2187 sta = ieee80211_find_sta(priv->hw, priv->bssid);
2192 ht_conf = &sta->ht_cap;
2194 if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
2195 iwl_conf->sgf |= HT_SHORT_GI_20MHZ;
2196 if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
2197 iwl_conf->sgf |= HT_SHORT_GI_40MHZ;
2199 iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
2200 iwl_conf->max_amsdu_size =
2201 !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU);
2203 iwl_conf->supported_chan_width =
2204 !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
2207 * XXX: The HT configuration needs to be moved into iwl_mac_config()
2208 * to be done there correctly.
2211 iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
2212 if (conf_is_ht40_minus(&priv->hw->conf))
2213 iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
2214 else if (conf_is_ht40_plus(&priv->hw->conf))
2215 iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
2217 /* If no above or below channel supplied disable FAT channel */
2218 if (iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_ABOVE &&
2219 iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_BELOW)
2220 iwl_conf->supported_chan_width = 0;
2222 iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2);
2224 memcpy(&iwl_conf->mcs, &ht_conf->mcs, 16);
2226 iwl_conf->tx_chan_width = iwl_conf->supported_chan_width != 0;
2227 iwl_conf->ht_protection =
2228 bss_conf->ht.operation_mode & IEEE80211_HT_OP_MODE_PROTECTION;
2229 iwl_conf->non_GF_STA_present =
2230 !!(bss_conf->ht.operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
2234 IWL_DEBUG_MAC80211(priv, "leave\n");
2237 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
2238 void iwl_bss_info_changed(struct ieee80211_hw *hw,
2239 struct ieee80211_vif *vif,
2240 struct ieee80211_bss_conf *bss_conf,
2243 struct iwl_priv *priv = hw->priv;
2246 IWL_DEBUG_MAC80211(priv, "changes = 0x%X\n", changes);
2248 if (!iwl_is_alive(priv))
2251 mutex_lock(&priv->mutex);
2253 if (changes & BSS_CHANGED_BEACON &&
2254 priv->iw_mode == NL80211_IFTYPE_AP) {
2255 dev_kfree_skb(priv->ibss_beacon);
2256 priv->ibss_beacon = ieee80211_beacon_get(hw, vif);
2259 if ((changes & BSS_CHANGED_BSSID) && !iwl_is_rfkill(priv)) {
2260 /* If there is currently a HW scan going on in the background
2261 * then we need to cancel it else the RXON below will fail. */
2262 if (iwl_scan_cancel_timeout(priv, 100)) {
2263 IWL_WARN(priv, "Aborted scan still in progress "
2265 IWL_DEBUG_MAC80211(priv, "leaving - scan abort failed.\n");
2266 mutex_unlock(&priv->mutex);
2269 memcpy(priv->staging_rxon.bssid_addr,
2270 bss_conf->bssid, ETH_ALEN);
2272 /* TODO: Audit driver for usage of these members and see
2273 * if mac80211 deprecates them (priv->bssid looks like it
2274 * shouldn't be there, but I haven't scanned the IBSS code
2275 * to verify) - jpk */
2276 memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN);
2278 if (priv->iw_mode == NL80211_IFTYPE_AP)
2279 iwlcore_config_ap(priv);
2281 int rc = iwlcore_commit_rxon(priv);
2282 if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc)
2283 iwl_rxon_add_station(
2284 priv, priv->active_rxon.bssid_addr, 1);
2286 } else if (!iwl_is_rfkill(priv)) {
2287 iwl_scan_cancel_timeout(priv, 100);
2288 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2289 iwlcore_commit_rxon(priv);
2292 if (priv->iw_mode == NL80211_IFTYPE_ADHOC &&
2293 changes & BSS_CHANGED_BEACON) {
2294 struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
2297 iwl_mac_beacon_update(hw, beacon);
2300 mutex_unlock(&priv->mutex);
2302 if (changes & BSS_CHANGED_ERP_PREAMBLE) {
2303 IWL_DEBUG_MAC80211(priv, "ERP_PREAMBLE %d\n",
2304 bss_conf->use_short_preamble);
2305 if (bss_conf->use_short_preamble)
2306 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
2308 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
2311 if (changes & BSS_CHANGED_ERP_CTS_PROT) {
2312 IWL_DEBUG_MAC80211(priv, "ERP_CTS %d\n", bss_conf->use_cts_prot);
2313 if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
2314 priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
2316 priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
2319 if (changes & BSS_CHANGED_HT) {
2320 iwl_ht_conf(priv, bss_conf);
2322 if (priv->cfg->ops->hcmd->set_rxon_chain)
2323 priv->cfg->ops->hcmd->set_rxon_chain(priv);
2326 if (changes & BSS_CHANGED_ASSOC) {
2327 IWL_DEBUG_MAC80211(priv, "ASSOC %d\n", bss_conf->assoc);
2328 /* This should never happen as this function should
2329 * never be called from interrupt context. */
2330 if (WARN_ON_ONCE(in_interrupt()))
2332 if (bss_conf->assoc) {
2333 priv->assoc_id = bss_conf->aid;
2334 priv->beacon_int = bss_conf->beacon_int;
2335 priv->power_data.dtim_period = bss_conf->dtim_period;
2336 priv->timestamp = bss_conf->timestamp;
2337 priv->assoc_capability = bss_conf->assoc_capability;
2339 /* we have just associated, don't start scan too early
2340 * leave time for EAPOL exchange to complete
2342 priv->next_scan_jiffies = jiffies +
2343 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
2344 mutex_lock(&priv->mutex);
2345 priv->cfg->ops->lib->post_associate(priv);
2346 mutex_unlock(&priv->mutex);
2349 IWL_DEBUG_MAC80211(priv, "DISASSOC %d\n", bss_conf->assoc);
2351 } else if (changes && iwl_is_associated(priv) && priv->assoc_id) {
2352 IWL_DEBUG_MAC80211(priv, "Associated Changes %d\n", changes);
2353 ret = iwl_send_rxon_assoc(priv);
2355 /* Sync active_rxon with latest change. */
2356 memcpy((void *)&priv->active_rxon,
2357 &priv->staging_rxon,
2358 sizeof(struct iwl_rxon_cmd));
2360 IWL_DEBUG_MAC80211(priv, "leave\n");
2362 EXPORT_SYMBOL(iwl_bss_info_changed);
2364 int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
2366 struct iwl_priv *priv = hw->priv;
2367 unsigned long flags;
2370 IWL_DEBUG_MAC80211(priv, "enter\n");
2372 if (!iwl_is_ready_rf(priv)) {
2373 IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
2377 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
2378 IWL_DEBUG_MAC80211(priv, "leave - not IBSS\n");
2382 spin_lock_irqsave(&priv->lock, flags);
2384 if (priv->ibss_beacon)
2385 dev_kfree_skb(priv->ibss_beacon);
2387 priv->ibss_beacon = skb;
2390 timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp;
2391 priv->timestamp = le64_to_cpu(timestamp);
2393 IWL_DEBUG_MAC80211(priv, "leave\n");
2394 spin_unlock_irqrestore(&priv->lock, flags);
2396 iwl_reset_qos(priv);
2398 priv->cfg->ops->lib->post_associate(priv);
2403 EXPORT_SYMBOL(iwl_mac_beacon_update);
2405 int iwl_set_mode(struct iwl_priv *priv, int mode)
2407 if (mode == NL80211_IFTYPE_ADHOC) {
2408 const struct iwl_channel_info *ch_info;
2410 ch_info = iwl_get_channel_info(priv,
2412 le16_to_cpu(priv->staging_rxon.channel));
2414 if (!ch_info || !is_channel_ibss(ch_info)) {
2415 IWL_ERR(priv, "channel %d not IBSS channel\n",
2416 le16_to_cpu(priv->staging_rxon.channel));
2421 iwl_connection_init_rx_config(priv, mode);
2423 if (priv->cfg->ops->hcmd->set_rxon_chain)
2424 priv->cfg->ops->hcmd->set_rxon_chain(priv);
2426 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
2428 priv->cfg->ops->smgmt->clear_station_table(priv);
2430 /* dont commit rxon if rf-kill is on*/
2431 if (!iwl_is_ready_rf(priv))
2434 cancel_delayed_work(&priv->scan_check);
2435 if (iwl_scan_cancel_timeout(priv, 100)) {
2436 IWL_WARN(priv, "Aborted scan still in progress after 100ms\n");
2437 IWL_DEBUG_MAC80211(priv, "leaving - scan abort failed.\n");
2441 iwlcore_commit_rxon(priv);
2445 EXPORT_SYMBOL(iwl_set_mode);
2447 int iwl_mac_add_interface(struct ieee80211_hw *hw,
2448 struct ieee80211_if_init_conf *conf)
2450 struct iwl_priv *priv = hw->priv;
2451 unsigned long flags;
2453 IWL_DEBUG_MAC80211(priv, "enter: type %d\n", conf->type);
2456 IWL_DEBUG_MAC80211(priv, "leave - vif != NULL\n");
2460 spin_lock_irqsave(&priv->lock, flags);
2461 priv->vif = conf->vif;
2462 priv->iw_mode = conf->type;
2464 spin_unlock_irqrestore(&priv->lock, flags);
2466 mutex_lock(&priv->mutex);
2468 if (conf->mac_addr) {
2469 IWL_DEBUG_MAC80211(priv, "Set %pM\n", conf->mac_addr);
2470 memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
2473 if (iwl_set_mode(priv, conf->type) == -EAGAIN)
2474 /* we are not ready, will run again when ready */
2475 set_bit(STATUS_MODE_PENDING, &priv->status);
2477 mutex_unlock(&priv->mutex);
2479 IWL_DEBUG_MAC80211(priv, "leave\n");
2482 EXPORT_SYMBOL(iwl_mac_add_interface);
2484 void iwl_mac_remove_interface(struct ieee80211_hw *hw,
2485 struct ieee80211_if_init_conf *conf)
2487 struct iwl_priv *priv = hw->priv;
2489 IWL_DEBUG_MAC80211(priv, "enter\n");
2491 mutex_lock(&priv->mutex);
2493 if (iwl_is_ready_rf(priv)) {
2494 iwl_scan_cancel_timeout(priv, 100);
2495 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2496 iwlcore_commit_rxon(priv);
2498 if (priv->vif == conf->vif) {
2500 memset(priv->bssid, 0, ETH_ALEN);
2502 mutex_unlock(&priv->mutex);
2504 IWL_DEBUG_MAC80211(priv, "leave\n");
2507 EXPORT_SYMBOL(iwl_mac_remove_interface);
2510 * iwl_mac_config - mac80211 config callback
2512 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
2513 * be set inappropriately and the driver currently sets the hardware up to
2514 * use it whenever needed.
2516 int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
2518 struct iwl_priv *priv = hw->priv;
2519 const struct iwl_channel_info *ch_info;
2520 struct ieee80211_conf *conf = &hw->conf;
2521 unsigned long flags = 0;
2524 int scan_active = 0;
2526 mutex_lock(&priv->mutex);
2528 IWL_DEBUG_MAC80211(priv, "enter to channel %d changed 0x%X\n",
2529 conf->channel->hw_value, changed);
2531 if (unlikely(!priv->cfg->mod_params->disable_hw_scan &&
2532 test_bit(STATUS_SCANNING, &priv->status))) {
2534 IWL_DEBUG_MAC80211(priv, "leave - scanning\n");
2538 /* during scanning mac80211 will delay channel setting until
2539 * scan finish with changed = 0
2541 if (!changed || (changed & IEEE80211_CONF_CHANGE_CHANNEL)) {
2545 ch = ieee80211_frequency_to_channel(conf->channel->center_freq);
2546 ch_info = iwl_get_channel_info(priv, conf->channel->band, ch);
2547 if (!is_channel_valid(ch_info)) {
2548 IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n");
2553 if (priv->iw_mode == NL80211_IFTYPE_ADHOC &&
2554 !is_channel_ibss(ch_info)) {
2555 IWL_ERR(priv, "channel %d in band %d not "
2557 conf->channel->hw_value, conf->channel->band);
2562 priv->current_ht_config.is_ht = conf_is_ht(conf);
2564 spin_lock_irqsave(&priv->lock, flags);
2567 /* if we are switching from ht to 2.4 clear flags
2568 * from any ht related info since 2.4 does not
2570 if ((le16_to_cpu(priv->staging_rxon.channel) != ch))
2571 priv->staging_rxon.flags = 0;
2573 iwl_set_rxon_channel(priv, conf->channel);
2575 iwl_set_flags_for_band(priv, conf->channel->band);
2576 spin_unlock_irqrestore(&priv->lock, flags);
2578 /* The list of supported rates and rate mask can be different
2579 * for each band; since the band may have changed, reset
2580 * the rate mask to what mac80211 lists */
2584 if (changed & IEEE80211_CONF_CHANGE_PS) {
2585 if (conf->flags & IEEE80211_CONF_PS)
2586 ret = iwl_power_set_user_mode(priv, IWL_POWER_INDEX_3);
2588 ret = iwl_power_set_user_mode(priv, IWL_POWER_MODE_CAM);
2590 IWL_DEBUG_MAC80211(priv, "Error setting power level\n");
2594 if (changed & IEEE80211_CONF_CHANGE_POWER) {
2595 IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n",
2596 priv->tx_power_user_lmt, conf->power_level);
2598 iwl_set_tx_power(priv, conf->power_level, false);
2601 /* call to ensure that 4965 rx_chain is set properly in monitor mode */
2602 if (priv->cfg->ops->hcmd->set_rxon_chain)
2603 priv->cfg->ops->hcmd->set_rxon_chain(priv);
2605 if (changed & IEEE80211_CONF_CHANGE_RADIO_ENABLED) {
2606 if (conf->radio_enabled &&
2607 iwl_radio_kill_sw_enable_radio(priv)) {
2608 IWL_DEBUG_MAC80211(priv, "leave - RF-KILL - "
2609 "waiting for uCode\n");
2613 if (!conf->radio_enabled)
2614 iwl_radio_kill_sw_disable_radio(priv);
2617 if (!conf->radio_enabled) {
2618 IWL_DEBUG_MAC80211(priv, "leave - radio disabled\n");
2622 if (!iwl_is_ready(priv)) {
2623 IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
2630 if (memcmp(&priv->active_rxon,
2631 &priv->staging_rxon, sizeof(priv->staging_rxon)))
2632 iwlcore_commit_rxon(priv);
2634 IWL_DEBUG_INFO(priv, "Not re-sending same RXON configuration.\n");
2638 IWL_DEBUG_MAC80211(priv, "leave\n");
2639 mutex_unlock(&priv->mutex);
2642 EXPORT_SYMBOL(iwl_mac_config);
2644 int iwl_mac_get_tx_stats(struct ieee80211_hw *hw,
2645 struct ieee80211_tx_queue_stats *stats)
2647 struct iwl_priv *priv = hw->priv;
2649 struct iwl_tx_queue *txq;
2650 struct iwl_queue *q;
2651 unsigned long flags;
2653 IWL_DEBUG_MAC80211(priv, "enter\n");
2655 if (!iwl_is_ready_rf(priv)) {
2656 IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
2660 spin_lock_irqsave(&priv->lock, flags);
2662 for (i = 0; i < AC_NUM; i++) {
2663 txq = &priv->txq[i];
2665 avail = iwl_queue_space(q);
2667 stats[i].len = q->n_window - avail;
2668 stats[i].limit = q->n_window - q->high_mark;
2669 stats[i].count = q->n_window;
2672 spin_unlock_irqrestore(&priv->lock, flags);
2674 IWL_DEBUG_MAC80211(priv, "leave\n");
2678 EXPORT_SYMBOL(iwl_mac_get_tx_stats);
2680 void iwl_mac_reset_tsf(struct ieee80211_hw *hw)
2682 struct iwl_priv *priv = hw->priv;
2683 unsigned long flags;
2685 mutex_lock(&priv->mutex);
2686 IWL_DEBUG_MAC80211(priv, "enter\n");
2688 spin_lock_irqsave(&priv->lock, flags);
2689 memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info));
2690 spin_unlock_irqrestore(&priv->lock, flags);
2692 iwl_reset_qos(priv);
2694 spin_lock_irqsave(&priv->lock, flags);
2696 priv->assoc_capability = 0;
2697 priv->assoc_station_added = 0;
2699 /* new association get rid of ibss beacon skb */
2700 if (priv->ibss_beacon)
2701 dev_kfree_skb(priv->ibss_beacon);
2703 priv->ibss_beacon = NULL;
2705 priv->beacon_int = priv->vif->bss_conf.beacon_int;
2706 priv->timestamp = 0;
2707 if ((priv->iw_mode == NL80211_IFTYPE_STATION))
2708 priv->beacon_int = 0;
2710 spin_unlock_irqrestore(&priv->lock, flags);
2712 if (!iwl_is_ready_rf(priv)) {
2713 IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
2714 mutex_unlock(&priv->mutex);
2718 /* we are restarting association process
2719 * clear RXON_FILTER_ASSOC_MSK bit
2721 if (priv->iw_mode != NL80211_IFTYPE_AP) {
2722 iwl_scan_cancel_timeout(priv, 100);
2723 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2724 iwlcore_commit_rxon(priv);
2727 iwl_power_update_mode(priv, 0);
2729 /* Per mac80211.h: This is only used in IBSS mode... */
2730 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
2732 /* switch to CAM during association period.
2733 * the ucode will block any association/authentication
2734 * frome during assiciation period if it can not hear
2735 * the AP because of PM. the timer enable PM back is
2736 * association do not complete
2738 if (priv->hw->conf.channel->flags &
2739 (IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_RADAR))
2740 iwl_power_disable_management(priv, 3000);
2742 IWL_DEBUG_MAC80211(priv, "leave - not in IBSS\n");
2743 mutex_unlock(&priv->mutex);
2749 mutex_unlock(&priv->mutex);
2751 IWL_DEBUG_MAC80211(priv, "leave\n");
2753 EXPORT_SYMBOL(iwl_mac_reset_tsf);
2757 int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state)
2759 struct iwl_priv *priv = pci_get_drvdata(pdev);
2762 * This function is called when system goes into suspend state
2763 * mac80211 will call iwl_mac_stop() from the mac80211 suspend function
2764 * first but since iwl_mac_stop() has no knowledge of who the caller is,
2765 * it will not call apm_ops.stop() to stop the DMA operation.
2766 * Calling apm_ops.stop here to make sure we stop the DMA.
2768 priv->cfg->ops->lib->apm_ops.stop(priv);
2770 pci_save_state(pdev);
2771 pci_disable_device(pdev);
2772 pci_set_power_state(pdev, PCI_D3hot);
2776 EXPORT_SYMBOL(iwl_pci_suspend);
2778 int iwl_pci_resume(struct pci_dev *pdev)
2780 struct iwl_priv *priv = pci_get_drvdata(pdev);
2783 pci_set_power_state(pdev, PCI_D0);
2784 ret = pci_enable_device(pdev);
2787 pci_restore_state(pdev);
2788 iwl_enable_interrupts(priv);
2792 EXPORT_SYMBOL(iwl_pci_resume);
2794 #endif /* CONFIG_PM */