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-power.h"
41 #include "iwl-helpers.h"
44 MODULE_DESCRIPTION("iwl core");
45 MODULE_VERSION(IWLWIFI_VERSION);
46 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
47 MODULE_LICENSE("GPL");
49 static struct iwl_wimax_coex_event_entry cu_priorities[COEX_NUM_OF_EVENTS] = {
50 {COEX_CU_UNASSOC_IDLE_RP, COEX_CU_UNASSOC_IDLE_WP,
51 0, COEX_UNASSOC_IDLE_FLAGS},
52 {COEX_CU_UNASSOC_MANUAL_SCAN_RP, COEX_CU_UNASSOC_MANUAL_SCAN_WP,
53 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS},
54 {COEX_CU_UNASSOC_AUTO_SCAN_RP, COEX_CU_UNASSOC_AUTO_SCAN_WP,
55 0, COEX_UNASSOC_AUTO_SCAN_FLAGS},
56 {COEX_CU_CALIBRATION_RP, COEX_CU_CALIBRATION_WP,
57 0, COEX_CALIBRATION_FLAGS},
58 {COEX_CU_PERIODIC_CALIBRATION_RP, COEX_CU_PERIODIC_CALIBRATION_WP,
59 0, COEX_PERIODIC_CALIBRATION_FLAGS},
60 {COEX_CU_CONNECTION_ESTAB_RP, COEX_CU_CONNECTION_ESTAB_WP,
61 0, COEX_CONNECTION_ESTAB_FLAGS},
62 {COEX_CU_ASSOCIATED_IDLE_RP, COEX_CU_ASSOCIATED_IDLE_WP,
63 0, COEX_ASSOCIATED_IDLE_FLAGS},
64 {COEX_CU_ASSOC_MANUAL_SCAN_RP, COEX_CU_ASSOC_MANUAL_SCAN_WP,
65 0, COEX_ASSOC_MANUAL_SCAN_FLAGS},
66 {COEX_CU_ASSOC_AUTO_SCAN_RP, COEX_CU_ASSOC_AUTO_SCAN_WP,
67 0, COEX_ASSOC_AUTO_SCAN_FLAGS},
68 {COEX_CU_ASSOC_ACTIVE_LEVEL_RP, COEX_CU_ASSOC_ACTIVE_LEVEL_WP,
69 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS},
70 {COEX_CU_RF_ON_RP, COEX_CU_RF_ON_WP, 0, COEX_CU_RF_ON_FLAGS},
71 {COEX_CU_RF_OFF_RP, COEX_CU_RF_OFF_WP, 0, COEX_RF_OFF_FLAGS},
72 {COEX_CU_STAND_ALONE_DEBUG_RP, COEX_CU_STAND_ALONE_DEBUG_WP,
73 0, COEX_STAND_ALONE_DEBUG_FLAGS},
74 {COEX_CU_IPAN_ASSOC_LEVEL_RP, COEX_CU_IPAN_ASSOC_LEVEL_WP,
75 0, COEX_IPAN_ASSOC_LEVEL_FLAGS},
76 {COEX_CU_RSRVD1_RP, COEX_CU_RSRVD1_WP, 0, COEX_RSRVD1_FLAGS},
77 {COEX_CU_RSRVD2_RP, COEX_CU_RSRVD2_WP, 0, COEX_RSRVD2_FLAGS}
80 #define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \
81 [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
82 IWL_RATE_SISO_##s##M_PLCP, \
83 IWL_RATE_MIMO2_##s##M_PLCP,\
84 IWL_RATE_MIMO3_##s##M_PLCP,\
85 IWL_RATE_##r##M_IEEE, \
86 IWL_RATE_##ip##M_INDEX, \
87 IWL_RATE_##in##M_INDEX, \
88 IWL_RATE_##rp##M_INDEX, \
89 IWL_RATE_##rn##M_INDEX, \
90 IWL_RATE_##pp##M_INDEX, \
91 IWL_RATE_##np##M_INDEX }
94 EXPORT_SYMBOL(iwl_debug_level);
96 static irqreturn_t iwl_isr(int irq, void *data);
100 * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate
102 * If there isn't a valid next or previous rate then INV is used which
103 * maps to IWL_RATE_INVALID
106 const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = {
107 IWL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */
108 IWL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */
109 IWL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */
110 IWL_DECLARE_RATE_INFO(11, INV, 9, 12, 9, 12, 5, 18), /* 11mbps */
111 IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */
112 IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */
113 IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */
114 IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */
115 IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */
116 IWL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */
117 IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */
118 IWL_DECLARE_RATE_INFO(54, 54, 48, INV, 48, INV, 48, INV),/* 54mbps */
119 IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */
120 /* FIXME:RS: ^^ should be INV (legacy) */
122 EXPORT_SYMBOL(iwl_rates);
125 * translate ucode response to mac80211 tx status control values
127 void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
128 struct ieee80211_tx_info *info)
130 struct ieee80211_tx_rate *r = &info->control.rates[0];
132 info->antenna_sel_tx =
133 ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS);
134 if (rate_n_flags & RATE_MCS_HT_MSK)
135 r->flags |= IEEE80211_TX_RC_MCS;
136 if (rate_n_flags & RATE_MCS_GF_MSK)
137 r->flags |= IEEE80211_TX_RC_GREEN_FIELD;
138 if (rate_n_flags & RATE_MCS_HT40_MSK)
139 r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
140 if (rate_n_flags & RATE_MCS_DUP_MSK)
141 r->flags |= IEEE80211_TX_RC_DUP_DATA;
142 if (rate_n_flags & RATE_MCS_SGI_MSK)
143 r->flags |= IEEE80211_TX_RC_SHORT_GI;
144 r->idx = iwl_hwrate_to_mac80211_idx(rate_n_flags, info->band);
146 EXPORT_SYMBOL(iwl_hwrate_to_tx_control);
148 int iwl_hwrate_to_plcp_idx(u32 rate_n_flags)
153 if (rate_n_flags & RATE_MCS_HT_MSK) {
154 idx = (rate_n_flags & 0xff);
156 if (idx >= IWL_RATE_MIMO3_6M_PLCP)
157 idx = idx - IWL_RATE_MIMO3_6M_PLCP;
158 else if (idx >= IWL_RATE_MIMO2_6M_PLCP)
159 idx = idx - IWL_RATE_MIMO2_6M_PLCP;
161 idx += IWL_FIRST_OFDM_RATE;
162 /* skip 9M not supported in ht*/
163 if (idx >= IWL_RATE_9M_INDEX)
165 if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE))
168 /* legacy rate format, search for match in table */
170 for (idx = 0; idx < ARRAY_SIZE(iwl_rates); idx++)
171 if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF))
177 EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx);
179 int iwl_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band)
184 /* HT rate format: mac80211 wants an MCS number, which is just LSB */
185 if (rate_n_flags & RATE_MCS_HT_MSK) {
186 idx = (rate_n_flags & 0xff);
188 /* Legacy rate format, search for match in table */
190 if (band == IEEE80211_BAND_5GHZ)
191 band_offset = IWL_FIRST_OFDM_RATE;
192 for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++)
193 if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF))
194 return idx - band_offset;
200 u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant)
204 for (i = 0; i < RATE_ANT_NUM - 1; i++) {
205 ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0;
206 if (priv->hw_params.valid_tx_ant & BIT(ind))
211 EXPORT_SYMBOL(iwl_toggle_tx_ant);
213 const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
214 EXPORT_SYMBOL(iwl_bcast_addr);
217 /* This function both allocates and initializes hw and priv. */
218 struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
219 struct ieee80211_ops *hw_ops)
221 struct iwl_priv *priv;
223 /* mac80211 allocates memory for this device instance, including
224 * space for this driver's private structure */
225 struct ieee80211_hw *hw =
226 ieee80211_alloc_hw(sizeof(struct iwl_priv), hw_ops);
228 printk(KERN_ERR "%s: Can not allocate network device\n",
239 EXPORT_SYMBOL(iwl_alloc_all);
241 void iwl_hw_detect(struct iwl_priv *priv)
243 priv->hw_rev = _iwl_read32(priv, CSR_HW_REV);
244 priv->hw_wa_rev = _iwl_read32(priv, CSR_HW_REV_WA_REG);
245 pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &priv->rev_id);
247 EXPORT_SYMBOL(iwl_hw_detect);
249 int iwl_hw_nic_init(struct iwl_priv *priv)
252 struct iwl_rx_queue *rxq = &priv->rxq;
256 spin_lock_irqsave(&priv->lock, flags);
257 priv->cfg->ops->lib->apm_ops.init(priv);
259 /* Set interrupt coalescing timer to 512 usecs */
260 iwl_write8(priv, CSR_INT_COALESCING, 512 / 32);
262 spin_unlock_irqrestore(&priv->lock, flags);
264 ret = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN);
266 priv->cfg->ops->lib->apm_ops.config(priv);
268 /* Allocate the RX queue, or reset if it is already allocated */
270 ret = iwl_rx_queue_alloc(priv);
272 IWL_ERR(priv, "Unable to initialize Rx queue\n");
276 iwl_rx_queue_reset(priv, rxq);
278 iwl_rx_replenish(priv);
280 iwl_rx_init(priv, rxq);
282 spin_lock_irqsave(&priv->lock, flags);
284 rxq->need_update = 1;
285 iwl_rx_queue_update_write_ptr(priv, rxq);
287 spin_unlock_irqrestore(&priv->lock, flags);
289 /* Allocate and init all Tx and Command queues */
290 ret = iwl_txq_ctx_reset(priv);
294 set_bit(STATUS_INIT, &priv->status);
298 EXPORT_SYMBOL(iwl_hw_nic_init);
303 void iwl_activate_qos(struct iwl_priv *priv, u8 force)
305 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
308 priv->qos_data.def_qos_parm.qos_flags = 0;
310 if (priv->qos_data.qos_cap.q_AP.queue_request &&
311 !priv->qos_data.qos_cap.q_AP.txop_request)
312 priv->qos_data.def_qos_parm.qos_flags |=
313 QOS_PARAM_FLG_TXOP_TYPE_MSK;
314 if (priv->qos_data.qos_active)
315 priv->qos_data.def_qos_parm.qos_flags |=
316 QOS_PARAM_FLG_UPDATE_EDCA_MSK;
318 if (priv->current_ht_config.is_ht)
319 priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
321 if (force || iwl_is_associated(priv)) {
322 IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
323 priv->qos_data.qos_active,
324 priv->qos_data.def_qos_parm.qos_flags);
326 iwl_send_cmd_pdu_async(priv, REPLY_QOS_PARAM,
327 sizeof(struct iwl_qosparam_cmd),
328 &priv->qos_data.def_qos_parm, NULL);
331 EXPORT_SYMBOL(iwl_activate_qos);
334 * AC CWmin CW max AIFSN TXOP Limit TXOP Limit
335 * (802.11b) (802.11a/g)
336 * AC_BK 15 1023 7 0 0
337 * AC_BE 15 1023 3 0 0
338 * AC_VI 7 15 2 6.016ms 3.008ms
339 * AC_VO 3 7 2 3.264ms 1.504ms
341 void iwl_reset_qos(struct iwl_priv *priv)
346 bool is_legacy = false;
350 spin_lock_irqsave(&priv->lock, flags);
351 /* QoS always active in AP and ADHOC mode
352 * In STA mode wait for association
354 if (priv->iw_mode == NL80211_IFTYPE_ADHOC ||
355 priv->iw_mode == NL80211_IFTYPE_AP)
356 priv->qos_data.qos_active = 1;
358 priv->qos_data.qos_active = 0;
360 /* check for legacy mode */
361 if ((priv->iw_mode == NL80211_IFTYPE_ADHOC &&
362 (priv->active_rate & IWL_OFDM_RATES_MASK) == 0) ||
363 (priv->iw_mode == NL80211_IFTYPE_STATION &&
364 (priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK) == 0)) {
369 if (priv->qos_data.qos_active)
373 priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min);
374 priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max);
375 priv->qos_data.def_qos_parm.ac[0].aifsn = aifs;
376 priv->qos_data.def_qos_parm.ac[0].edca_txop = 0;
377 priv->qos_data.def_qos_parm.ac[0].reserved1 = 0;
379 if (priv->qos_data.qos_active) {
382 priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min);
383 priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max);
384 priv->qos_data.def_qos_parm.ac[i].aifsn = 7;
385 priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
386 priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
390 priv->qos_data.def_qos_parm.ac[i].cw_min =
391 cpu_to_le16((cw_min + 1) / 2 - 1);
392 priv->qos_data.def_qos_parm.ac[i].cw_max =
394 priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
396 priv->qos_data.def_qos_parm.ac[i].edca_txop =
399 priv->qos_data.def_qos_parm.ac[i].edca_txop =
401 priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
405 priv->qos_data.def_qos_parm.ac[i].cw_min =
406 cpu_to_le16((cw_min + 1) / 4 - 1);
407 priv->qos_data.def_qos_parm.ac[i].cw_max =
408 cpu_to_le16((cw_min + 1) / 2 - 1);
409 priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
410 priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
412 priv->qos_data.def_qos_parm.ac[i].edca_txop =
415 priv->qos_data.def_qos_parm.ac[i].edca_txop =
418 for (i = 1; i < 4; i++) {
419 priv->qos_data.def_qos_parm.ac[i].cw_min =
421 priv->qos_data.def_qos_parm.ac[i].cw_max =
423 priv->qos_data.def_qos_parm.ac[i].aifsn = aifs;
424 priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
425 priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
428 IWL_DEBUG_QOS(priv, "set QoS to default \n");
430 spin_unlock_irqrestore(&priv->lock, flags);
432 EXPORT_SYMBOL(iwl_reset_qos);
434 #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
435 #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
436 static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv,
437 struct ieee80211_sta_ht_cap *ht_info,
438 enum ieee80211_band band)
440 u16 max_bit_rate = 0;
441 u8 rx_chains_num = priv->hw_params.rx_chains_num;
442 u8 tx_chains_num = priv->hw_params.tx_chains_num;
445 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
447 ht_info->ht_supported = true;
449 if (priv->cfg->ht_greenfield_support)
450 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
451 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
452 ht_info->cap |= (IEEE80211_HT_CAP_SM_PS &
453 (priv->cfg->sm_ps_mode << 2));
454 max_bit_rate = MAX_BIT_RATE_20_MHZ;
455 if (priv->hw_params.ht40_channel & BIT(band)) {
456 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
457 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
458 ht_info->mcs.rx_mask[4] = 0x01;
459 max_bit_rate = MAX_BIT_RATE_40_MHZ;
462 if (priv->cfg->mod_params->amsdu_size_8K)
463 ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU;
465 ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF;
466 ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF;
468 ht_info->mcs.rx_mask[0] = 0xFF;
469 if (rx_chains_num >= 2)
470 ht_info->mcs.rx_mask[1] = 0xFF;
471 if (rx_chains_num >= 3)
472 ht_info->mcs.rx_mask[2] = 0xFF;
474 /* Highest supported Rx data rate */
475 max_bit_rate *= rx_chains_num;
476 WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK);
477 ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate);
479 /* Tx MCS capabilities */
480 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
481 if (tx_chains_num != rx_chains_num) {
482 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
483 ht_info->mcs.tx_params |= ((tx_chains_num - 1) <<
484 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
489 * iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom
491 int iwlcore_init_geos(struct iwl_priv *priv)
493 struct iwl_channel_info *ch;
494 struct ieee80211_supported_band *sband;
495 struct ieee80211_channel *channels;
496 struct ieee80211_channel *geo_ch;
497 struct ieee80211_rate *rates;
500 if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
501 priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
502 IWL_DEBUG_INFO(priv, "Geography modes already initialized.\n");
503 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
507 channels = kzalloc(sizeof(struct ieee80211_channel) *
508 priv->channel_count, GFP_KERNEL);
512 rates = kzalloc((sizeof(struct ieee80211_rate) * IWL_RATE_COUNT_LEGACY),
519 /* 5.2GHz channels start after the 2.4GHz channels */
520 sband = &priv->bands[IEEE80211_BAND_5GHZ];
521 sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)];
523 sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
524 sband->n_bitrates = IWL_RATE_COUNT_LEGACY - IWL_FIRST_OFDM_RATE;
526 if (priv->cfg->sku & IWL_SKU_N)
527 iwlcore_init_ht_hw_capab(priv, &sband->ht_cap,
528 IEEE80211_BAND_5GHZ);
530 sband = &priv->bands[IEEE80211_BAND_2GHZ];
531 sband->channels = channels;
533 sband->bitrates = rates;
534 sband->n_bitrates = IWL_RATE_COUNT_LEGACY;
536 if (priv->cfg->sku & IWL_SKU_N)
537 iwlcore_init_ht_hw_capab(priv, &sband->ht_cap,
538 IEEE80211_BAND_2GHZ);
540 priv->ieee_channels = channels;
541 priv->ieee_rates = rates;
543 for (i = 0; i < priv->channel_count; i++) {
544 ch = &priv->channel_info[i];
546 /* FIXME: might be removed if scan is OK */
547 if (!is_channel_valid(ch))
550 if (is_channel_a_band(ch))
551 sband = &priv->bands[IEEE80211_BAND_5GHZ];
553 sband = &priv->bands[IEEE80211_BAND_2GHZ];
555 geo_ch = &sband->channels[sband->n_channels++];
557 geo_ch->center_freq =
558 ieee80211_channel_to_frequency(ch->channel);
559 geo_ch->max_power = ch->max_power_avg;
560 geo_ch->max_antenna_gain = 0xff;
561 geo_ch->hw_value = ch->channel;
563 if (is_channel_valid(ch)) {
564 if (!(ch->flags & EEPROM_CHANNEL_IBSS))
565 geo_ch->flags |= IEEE80211_CHAN_NO_IBSS;
567 if (!(ch->flags & EEPROM_CHANNEL_ACTIVE))
568 geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
570 if (ch->flags & EEPROM_CHANNEL_RADAR)
571 geo_ch->flags |= IEEE80211_CHAN_RADAR;
573 geo_ch->flags |= ch->ht40_extension_channel;
575 if (ch->max_power_avg > priv->tx_power_device_lmt)
576 priv->tx_power_device_lmt = ch->max_power_avg;
578 geo_ch->flags |= IEEE80211_CHAN_DISABLED;
581 IWL_DEBUG_INFO(priv, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n",
582 ch->channel, geo_ch->center_freq,
583 is_channel_a_band(ch) ? "5.2" : "2.4",
584 geo_ch->flags & IEEE80211_CHAN_DISABLED ?
585 "restricted" : "valid",
589 if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
590 priv->cfg->sku & IWL_SKU_A) {
591 IWL_INFO(priv, "Incorrectly detected BG card as ABG. "
592 "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
593 priv->pci_dev->device,
594 priv->pci_dev->subsystem_device);
595 priv->cfg->sku &= ~IWL_SKU_A;
598 IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
599 priv->bands[IEEE80211_BAND_2GHZ].n_channels,
600 priv->bands[IEEE80211_BAND_5GHZ].n_channels);
602 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
606 EXPORT_SYMBOL(iwlcore_init_geos);
609 * iwlcore_free_geos - undo allocations in iwlcore_init_geos
611 void iwlcore_free_geos(struct iwl_priv *priv)
613 kfree(priv->ieee_channels);
614 kfree(priv->ieee_rates);
615 clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
617 EXPORT_SYMBOL(iwlcore_free_geos);
620 * iwlcore_rts_tx_cmd_flag: Set rts/cts. 3945 and 4965 only share this
623 void iwlcore_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
626 if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
627 *tx_flags |= TX_CMD_FLG_RTS_MSK;
628 *tx_flags &= ~TX_CMD_FLG_CTS_MSK;
629 } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
630 *tx_flags &= ~TX_CMD_FLG_RTS_MSK;
631 *tx_flags |= TX_CMD_FLG_CTS_MSK;
634 EXPORT_SYMBOL(iwlcore_rts_tx_cmd_flag);
636 static bool is_single_rx_stream(struct iwl_priv *priv)
638 return !priv->current_ht_config.is_ht ||
639 priv->current_ht_config.single_chain_sufficient;
642 static u8 iwl_is_channel_extension(struct iwl_priv *priv,
643 enum ieee80211_band band,
644 u16 channel, u8 extension_chan_offset)
646 const struct iwl_channel_info *ch_info;
648 ch_info = iwl_get_channel_info(priv, band, channel);
649 if (!is_channel_valid(ch_info))
652 if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
653 return !(ch_info->ht40_extension_channel &
654 IEEE80211_CHAN_NO_HT40PLUS);
655 else if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW)
656 return !(ch_info->ht40_extension_channel &
657 IEEE80211_CHAN_NO_HT40MINUS);
662 u8 iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
663 struct ieee80211_sta_ht_cap *sta_ht_inf)
665 struct iwl_ht_config *ht_conf = &priv->current_ht_config;
667 if (!ht_conf->is_ht || !ht_conf->is_40mhz)
670 /* We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40
671 * the bit will not set if it is pure 40MHz case
674 if (!sta_ht_inf->ht_supported)
677 #ifdef CONFIG_IWLWIFI_DEBUG
678 if (priv->disable_ht40)
681 return iwl_is_channel_extension(priv, priv->band,
682 le16_to_cpu(priv->staging_rxon.channel),
683 ht_conf->extension_chan_offset);
685 EXPORT_SYMBOL(iwl_is_ht40_tx_allowed);
687 static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val)
690 u16 beacon_factor = 0;
692 beacon_factor = (beacon_val + max_beacon_val) / max_beacon_val;
693 new_val = beacon_val / beacon_factor;
696 new_val = max_beacon_val;
701 void iwl_setup_rxon_timing(struct iwl_priv *priv)
704 s32 interval_tm, rem;
706 struct ieee80211_conf *conf = NULL;
709 conf = ieee80211_get_hw_conf(priv->hw);
711 spin_lock_irqsave(&priv->lock, flags);
712 priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp);
713 priv->rxon_timing.listen_interval = cpu_to_le16(conf->listen_interval);
715 if (priv->iw_mode == NL80211_IFTYPE_STATION) {
716 beacon_int = priv->beacon_int;
717 priv->rxon_timing.atim_window = 0;
719 beacon_int = priv->vif->bss_conf.beacon_int;
721 /* TODO: we need to get atim_window from upper stack
722 * for now we set to 0 */
723 priv->rxon_timing.atim_window = 0;
726 beacon_int = iwl_adjust_beacon_interval(beacon_int,
727 priv->hw_params.max_beacon_itrvl * 1024);
728 priv->rxon_timing.beacon_interval = cpu_to_le16(beacon_int);
730 tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */
731 interval_tm = beacon_int * 1024;
732 rem = do_div(tsf, interval_tm);
733 priv->rxon_timing.beacon_init_val = cpu_to_le32(interval_tm - rem);
735 spin_unlock_irqrestore(&priv->lock, flags);
736 IWL_DEBUG_ASSOC(priv,
737 "beacon interval %d beacon timer %d beacon tim %d\n",
738 le16_to_cpu(priv->rxon_timing.beacon_interval),
739 le32_to_cpu(priv->rxon_timing.beacon_init_val),
740 le16_to_cpu(priv->rxon_timing.atim_window));
742 EXPORT_SYMBOL(iwl_setup_rxon_timing);
744 void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
746 struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
749 rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
751 rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
754 EXPORT_SYMBOL(iwl_set_rxon_hwcrypto);
757 * iwl_check_rxon_cmd - validate RXON structure is valid
759 * NOTE: This is really only useful during development and can eventually
760 * be #ifdef'd out once the driver is stable and folks aren't actively
763 int iwl_check_rxon_cmd(struct iwl_priv *priv)
767 struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
769 if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
770 error |= le32_to_cpu(rxon->flags &
771 (RXON_FLG_TGJ_NARROW_BAND_MSK |
772 RXON_FLG_RADAR_DETECT_MSK));
774 IWL_WARN(priv, "check 24G fields %d | %d\n",
777 error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
778 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
780 IWL_WARN(priv, "check 52 fields %d | %d\n",
782 error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
784 IWL_WARN(priv, "check 52 CCK %d | %d\n",
787 error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
789 IWL_WARN(priv, "check mac addr %d | %d\n", counter++, error);
791 /* make sure basic rates 6Mbps and 1Mbps are supported */
792 error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
793 ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
795 IWL_WARN(priv, "check basic rate %d | %d\n", counter++, error);
797 error |= (le16_to_cpu(rxon->assoc_id) > 2007);
799 IWL_WARN(priv, "check assoc id %d | %d\n", counter++, error);
801 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
802 == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
804 IWL_WARN(priv, "check CCK and short slot %d | %d\n",
807 error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
808 == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
810 IWL_WARN(priv, "check CCK & auto detect %d | %d\n",
813 error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
814 RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
816 IWL_WARN(priv, "check TGG and auto detect %d | %d\n",
820 IWL_WARN(priv, "Tuning to channel %d\n",
821 le16_to_cpu(rxon->channel));
824 IWL_ERR(priv, "Not a valid iwl_rxon_assoc_cmd field values\n");
829 EXPORT_SYMBOL(iwl_check_rxon_cmd);
832 * iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
833 * @priv: staging_rxon is compared to active_rxon
835 * If the RXON structure is changing enough to require a new tune,
836 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
837 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
839 int iwl_full_rxon_required(struct iwl_priv *priv)
842 /* These items are only settable from the full RXON command */
843 if (!(iwl_is_associated(priv)) ||
844 compare_ether_addr(priv->staging_rxon.bssid_addr,
845 priv->active_rxon.bssid_addr) ||
846 compare_ether_addr(priv->staging_rxon.node_addr,
847 priv->active_rxon.node_addr) ||
848 compare_ether_addr(priv->staging_rxon.wlap_bssid_addr,
849 priv->active_rxon.wlap_bssid_addr) ||
850 (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) ||
851 (priv->staging_rxon.channel != priv->active_rxon.channel) ||
852 (priv->staging_rxon.air_propagation !=
853 priv->active_rxon.air_propagation) ||
854 (priv->staging_rxon.ofdm_ht_single_stream_basic_rates !=
855 priv->active_rxon.ofdm_ht_single_stream_basic_rates) ||
856 (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates !=
857 priv->active_rxon.ofdm_ht_dual_stream_basic_rates) ||
858 (priv->staging_rxon.ofdm_ht_triple_stream_basic_rates !=
859 priv->active_rxon.ofdm_ht_triple_stream_basic_rates) ||
860 (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id))
863 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
864 * be updated with the RXON_ASSOC command -- however only some
865 * flag transitions are allowed using RXON_ASSOC */
867 /* Check if we are not switching bands */
868 if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
869 (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK))
872 /* Check if we are switching association toggle */
873 if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
874 (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
879 EXPORT_SYMBOL(iwl_full_rxon_required);
881 u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv)
887 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
888 rate_mask = priv->active_rate_basic & IWL_CCK_RATES_MASK;
890 rate_mask = priv->active_rate_basic & IWL_OFDM_RATES_MASK;
892 /* Find lowest valid rate */
893 for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
894 i = iwl_rates[i].next_ieee) {
895 if (rate_mask & (1 << i))
896 return iwl_rates[i].plcp;
899 /* No valid rate was found. Assign the lowest one */
900 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
901 return IWL_RATE_1M_PLCP;
903 return IWL_RATE_6M_PLCP;
905 EXPORT_SYMBOL(iwl_rate_get_lowest_plcp);
907 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf)
909 struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
911 if (!ht_conf->is_ht) {
912 rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK |
913 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK |
914 RXON_FLG_HT40_PROT_MSK |
915 RXON_FLG_HT_PROT_MSK);
919 /* FIXME: if the definition of ht_protection changed, the "translation"
920 * will be needed for rxon->flags
922 rxon->flags |= cpu_to_le32(ht_conf->ht_protection << RXON_FLG_HT_OPERATING_MODE_POS);
924 /* Set up channel bandwidth:
925 * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */
926 /* clear the HT channel mode before set the mode */
927 rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK |
928 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
929 if (iwl_is_ht40_tx_allowed(priv, NULL)) {
931 if (ht_conf->ht_protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) {
932 rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40;
933 /* Note: control channel is opposite of extension channel */
934 switch (ht_conf->extension_chan_offset) {
935 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
936 rxon->flags &= ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
938 case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
939 rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
943 /* Note: control channel is opposite of extension channel */
944 switch (ht_conf->extension_chan_offset) {
945 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
946 rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
947 rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED;
949 case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
950 rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
951 rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED;
953 case IEEE80211_HT_PARAM_CHA_SEC_NONE:
955 /* channel location only valid if in Mixed mode */
956 IWL_ERR(priv, "invalid extension channel offset\n");
961 rxon->flags |= RXON_FLG_CHANNEL_MODE_LEGACY;
964 if (priv->cfg->ops->hcmd->set_rxon_chain)
965 priv->cfg->ops->hcmd->set_rxon_chain(priv);
967 IWL_DEBUG_ASSOC(priv, "rxon flags 0x%X operation mode :0x%X "
968 "extension channel offset 0x%x\n",
969 le32_to_cpu(rxon->flags), ht_conf->ht_protection,
970 ht_conf->extension_chan_offset);
973 EXPORT_SYMBOL(iwl_set_rxon_ht);
975 #define IWL_NUM_RX_CHAINS_MULTIPLE 3
976 #define IWL_NUM_RX_CHAINS_SINGLE 2
977 #define IWL_NUM_IDLE_CHAINS_DUAL 2
978 #define IWL_NUM_IDLE_CHAINS_SINGLE 1
981 * Determine how many receiver/antenna chains to use.
983 * More provides better reception via diversity. Fewer saves power
984 * at the expense of throughput, but only when not in powersave to
987 * MIMO (dual stream) requires at least 2, but works better with 3.
988 * This does not determine *which* chains to use, just how many.
990 static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)
992 /* # of Rx chains to use when expecting MIMO. */
993 if (is_single_rx_stream(priv))
994 return IWL_NUM_RX_CHAINS_SINGLE;
996 return IWL_NUM_RX_CHAINS_MULTIPLE;
1000 * When we are in power saving mode, unless device support spatial
1001 * multiplexing power save, use the active count for rx chain count.
1003 static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
1005 int idle_cnt = active_cnt;
1006 bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
1008 /* # Rx chains when idling and maybe trying to save power */
1009 switch (priv->cfg->sm_ps_mode) {
1010 case WLAN_HT_CAP_SM_PS_STATIC:
1011 idle_cnt = (is_cam) ? active_cnt : IWL_NUM_IDLE_CHAINS_SINGLE;
1013 case WLAN_HT_CAP_SM_PS_DYNAMIC:
1014 idle_cnt = (is_cam) ? IWL_NUM_IDLE_CHAINS_DUAL :
1015 IWL_NUM_IDLE_CHAINS_SINGLE;
1017 case WLAN_HT_CAP_SM_PS_DISABLED:
1019 case WLAN_HT_CAP_SM_PS_INVALID:
1021 IWL_ERR(priv, "invalid sm_ps mode %u\n",
1022 priv->cfg->sm_ps_mode);
1029 /* up to 4 chains */
1030 static u8 iwl_count_chain_bitmap(u32 chain_bitmap)
1033 res = (chain_bitmap & BIT(0)) >> 0;
1034 res += (chain_bitmap & BIT(1)) >> 1;
1035 res += (chain_bitmap & BIT(2)) >> 2;
1036 res += (chain_bitmap & BIT(3)) >> 3;
1041 * iwl_is_monitor_mode - Determine if interface in monitor mode
1043 * priv->iw_mode is set in add_interface, but add_interface is
1044 * never called for monitor mode. The only way mac80211 informs us about
1045 * monitor mode is through configuring filters (call to configure_filter).
1047 bool iwl_is_monitor_mode(struct iwl_priv *priv)
1049 return !!(priv->staging_rxon.filter_flags & RXON_FILTER_PROMISC_MSK);
1051 EXPORT_SYMBOL(iwl_is_monitor_mode);
1054 * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
1056 * Selects how many and which Rx receivers/antennas/chains to use.
1057 * This should not be used for scan command ... it puts data in wrong place.
1059 void iwl_set_rxon_chain(struct iwl_priv *priv)
1061 bool is_single = is_single_rx_stream(priv);
1062 bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
1063 u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt;
1067 /* Tell uCode which antennas are actually connected.
1068 * Before first association, we assume all antennas are connected.
1069 * Just after first association, iwl_chain_noise_calibration()
1070 * checks which antennas actually *are* connected. */
1071 if (priv->chain_noise_data.active_chains)
1072 active_chains = priv->chain_noise_data.active_chains;
1074 active_chains = priv->hw_params.valid_rx_ant;
1076 rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS;
1078 /* How many receivers should we use? */
1079 active_rx_cnt = iwl_get_active_rx_chain_count(priv);
1080 idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt);
1083 /* correct rx chain count according hw settings
1084 * and chain noise calibration
1086 valid_rx_cnt = iwl_count_chain_bitmap(active_chains);
1087 if (valid_rx_cnt < active_rx_cnt)
1088 active_rx_cnt = valid_rx_cnt;
1090 if (valid_rx_cnt < idle_rx_cnt)
1091 idle_rx_cnt = valid_rx_cnt;
1093 rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS;
1094 rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS;
1096 /* copied from 'iwl_bg_request_scan()' */
1097 /* Force use of chains B and C (0x6) for Rx for 4965
1098 * Avoid A (0x1) because of its off-channel reception on A-band.
1099 * MIMO is not used here, but value is required */
1100 if (iwl_is_monitor_mode(priv) &&
1101 !(priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) &&
1102 ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965)) {
1103 rx_chain = ANT_ABC << RXON_RX_CHAIN_VALID_POS;
1104 rx_chain |= ANT_BC << RXON_RX_CHAIN_FORCE_SEL_POS;
1105 rx_chain |= ANT_ABC << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS;
1106 rx_chain |= 0x1 << RXON_RX_CHAIN_DRIVER_FORCE_POS;
1109 priv->staging_rxon.rx_chain = cpu_to_le16(rx_chain);
1111 if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam)
1112 priv->staging_rxon.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;
1114 priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
1116 IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n",
1117 priv->staging_rxon.rx_chain,
1118 active_rx_cnt, idle_rx_cnt);
1120 WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 ||
1121 active_rx_cnt < idle_rx_cnt);
1123 EXPORT_SYMBOL(iwl_set_rxon_chain);
1126 * iwl_set_rxon_channel - Set the phymode and channel values in staging RXON
1127 * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
1128 * @channel: Any channel valid for the requested phymode
1130 * In addition to setting the staging RXON, priv->phymode is also set.
1132 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
1133 * in the staging RXON flag structure based on the phymode
1135 int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch)
1137 enum ieee80211_band band = ch->band;
1138 u16 channel = ieee80211_frequency_to_channel(ch->center_freq);
1140 if (!iwl_get_channel_info(priv, band, channel)) {
1141 IWL_DEBUG_INFO(priv, "Could not set channel to %d [%d]\n",
1146 if ((le16_to_cpu(priv->staging_rxon.channel) == channel) &&
1147 (priv->band == band))
1150 priv->staging_rxon.channel = cpu_to_le16(channel);
1151 if (band == IEEE80211_BAND_5GHZ)
1152 priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK;
1154 priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
1158 IWL_DEBUG_INFO(priv, "Staging channel set to %d [%d]\n", channel, band);
1162 EXPORT_SYMBOL(iwl_set_rxon_channel);
1164 void iwl_set_flags_for_band(struct iwl_priv *priv,
1165 enum ieee80211_band band)
1167 if (band == IEEE80211_BAND_5GHZ) {
1168 priv->staging_rxon.flags &=
1169 ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
1170 | RXON_FLG_CCK_MSK);
1171 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1173 /* Copied from iwl_post_associate() */
1174 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
1175 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
1177 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1179 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
1180 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
1182 priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
1183 priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
1184 priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
1189 * initialize rxon structure with default values from eeprom
1191 void iwl_connection_init_rx_config(struct iwl_priv *priv, int mode)
1193 const struct iwl_channel_info *ch_info;
1195 memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
1198 case NL80211_IFTYPE_AP:
1199 priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP;
1202 case NL80211_IFTYPE_STATION:
1203 priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS;
1204 priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
1207 case NL80211_IFTYPE_ADHOC:
1208 priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS;
1209 priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
1210 priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
1211 RXON_FILTER_ACCEPT_GRP_MSK;
1215 IWL_ERR(priv, "Unsupported interface type %d\n", mode);
1220 /* TODO: Figure out when short_preamble would be set and cache from
1222 if (!hw_to_local(priv->hw)->short_preamble)
1223 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
1225 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
1228 ch_info = iwl_get_channel_info(priv, priv->band,
1229 le16_to_cpu(priv->active_rxon.channel));
1232 ch_info = &priv->channel_info[0];
1235 * in some case A channels are all non IBSS
1236 * in this case force B/G channel
1238 if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) &&
1239 !(is_channel_ibss(ch_info)))
1240 ch_info = &priv->channel_info[0];
1242 priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
1243 priv->band = ch_info->band;
1245 iwl_set_flags_for_band(priv, priv->band);
1247 priv->staging_rxon.ofdm_basic_rates =
1248 (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
1249 priv->staging_rxon.cck_basic_rates =
1250 (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
1252 /* clear both MIX and PURE40 mode flag */
1253 priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED |
1254 RXON_FLG_CHANNEL_MODE_PURE_40);
1255 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
1256 memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN);
1257 priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff;
1258 priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff;
1259 priv->staging_rxon.ofdm_ht_triple_stream_basic_rates = 0xff;
1261 EXPORT_SYMBOL(iwl_connection_init_rx_config);
1263 static void iwl_set_rate(struct iwl_priv *priv)
1265 const struct ieee80211_supported_band *hw = NULL;
1266 struct ieee80211_rate *rate;
1269 hw = iwl_get_hw_mode(priv, priv->band);
1271 IWL_ERR(priv, "Failed to set rate: unable to get hw mode\n");
1275 priv->active_rate = 0;
1276 priv->active_rate_basic = 0;
1278 for (i = 0; i < hw->n_bitrates; i++) {
1279 rate = &(hw->bitrates[i]);
1280 if (rate->hw_value < IWL_RATE_COUNT_LEGACY)
1281 priv->active_rate |= (1 << rate->hw_value);
1284 IWL_DEBUG_RATE(priv, "Set active_rate = %0x, active_rate_basic = %0x\n",
1285 priv->active_rate, priv->active_rate_basic);
1288 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
1289 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
1292 if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
1293 priv->staging_rxon.cck_basic_rates =
1294 ((priv->active_rate_basic &
1295 IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
1297 priv->staging_rxon.cck_basic_rates =
1298 (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
1300 if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
1301 priv->staging_rxon.ofdm_basic_rates =
1302 ((priv->active_rate_basic &
1303 (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
1304 IWL_FIRST_OFDM_RATE) & 0xFF;
1306 priv->staging_rxon.ofdm_basic_rates =
1307 (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
1310 void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
1312 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1313 struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon;
1314 struct iwl_csa_notification *csa = &(pkt->u.csa_notif);
1316 if (priv->switch_rxon.switch_in_progress) {
1317 if (!le32_to_cpu(csa->status) &&
1318 (csa->channel == priv->switch_rxon.channel)) {
1319 rxon->channel = csa->channel;
1320 priv->staging_rxon.channel = csa->channel;
1321 IWL_DEBUG_11H(priv, "CSA notif: channel %d\n",
1322 le16_to_cpu(csa->channel));
1324 IWL_ERR(priv, "CSA notif (fail) : channel %d\n",
1325 le16_to_cpu(csa->channel));
1327 priv->switch_rxon.switch_in_progress = false;
1330 EXPORT_SYMBOL(iwl_rx_csa);
1332 #ifdef CONFIG_IWLWIFI_DEBUG
1333 void iwl_print_rx_config_cmd(struct iwl_priv *priv)
1335 struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
1337 IWL_DEBUG_RADIO(priv, "RX CONFIG:\n");
1338 iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
1339 IWL_DEBUG_RADIO(priv, "u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
1340 IWL_DEBUG_RADIO(priv, "u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
1341 IWL_DEBUG_RADIO(priv, "u32 filter_flags: 0x%08x\n",
1342 le32_to_cpu(rxon->filter_flags));
1343 IWL_DEBUG_RADIO(priv, "u8 dev_type: 0x%x\n", rxon->dev_type);
1344 IWL_DEBUG_RADIO(priv, "u8 ofdm_basic_rates: 0x%02x\n",
1345 rxon->ofdm_basic_rates);
1346 IWL_DEBUG_RADIO(priv, "u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
1347 IWL_DEBUG_RADIO(priv, "u8[6] node_addr: %pM\n", rxon->node_addr);
1348 IWL_DEBUG_RADIO(priv, "u8[6] bssid_addr: %pM\n", rxon->bssid_addr);
1349 IWL_DEBUG_RADIO(priv, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
1351 EXPORT_SYMBOL(iwl_print_rx_config_cmd);
1354 * iwl_irq_handle_error - called for HW or SW error interrupt from card
1356 void iwl_irq_handle_error(struct iwl_priv *priv)
1358 /* Set the FW error flag -- cleared on iwl_down */
1359 set_bit(STATUS_FW_ERROR, &priv->status);
1361 /* Cancel currently queued command. */
1362 clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
1364 priv->cfg->ops->lib->dump_nic_error_log(priv);
1365 #ifdef CONFIG_IWLWIFI_DEBUG
1366 if (iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) {
1367 priv->cfg->ops->lib->dump_nic_event_log(priv);
1368 iwl_print_rx_config_cmd(priv);
1372 wake_up_interruptible(&priv->wait_command_queue);
1374 /* Keep the restart process from trying to send host
1375 * commands by clearing the INIT status bit */
1376 clear_bit(STATUS_READY, &priv->status);
1378 if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
1379 IWL_DEBUG(priv, IWL_DL_FW_ERRORS,
1380 "Restarting adapter due to uCode error.\n");
1382 if (priv->cfg->mod_params->restart_fw)
1383 queue_work(priv->workqueue, &priv->restart);
1386 EXPORT_SYMBOL(iwl_irq_handle_error);
1388 int iwl_apm_stop_master(struct iwl_priv *priv)
1392 /* stop device's busmaster DMA activity */
1393 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
1395 ret = iwl_poll_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_MASTER_DISABLED,
1396 CSR_RESET_REG_FLAG_MASTER_DISABLED, 100);
1398 IWL_WARN(priv, "Master Disable Timed Out, 100 usec\n");
1400 IWL_DEBUG_INFO(priv, "stop master\n");
1404 EXPORT_SYMBOL(iwl_apm_stop_master);
1406 void iwl_apm_stop(struct iwl_priv *priv)
1408 IWL_DEBUG_INFO(priv, "Stop card, put in low power state\n");
1410 /* Stop device's DMA activity */
1411 iwl_apm_stop_master(priv);
1413 /* Reset the entire device */
1414 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
1419 * Clear "initialization complete" bit to move adapter from
1420 * D0A* (powered-up Active) --> D0U* (Uninitialized) state.
1422 iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
1424 EXPORT_SYMBOL(iwl_apm_stop);
1428 * Start up NIC's basic functionality after it has been reset
1429 * (e.g. after platform boot, or shutdown via iwl_apm_stop())
1430 * NOTE: This does not load uCode nor start the embedded processor
1432 int iwl_apm_init(struct iwl_priv *priv)
1437 IWL_DEBUG_INFO(priv, "Init card's basic functions\n");
1440 * Use "set_bit" below rather than "write", to preserve any hardware
1441 * bits already set by default after reset.
1444 /* Disable L0S exit timer (platform NMI Work/Around) */
1445 iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
1446 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
1449 * Disable L0s without affecting L1;
1450 * don't wait for ICH L0s (ICH bug W/A)
1452 iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
1453 CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX);
1455 /* Set FH wait threshold to maximum (HW error during stress W/A) */
1456 iwl_set_bit(priv, CSR_DBG_HPET_MEM_REG, CSR_DBG_HPET_MEM_REG_VAL);
1459 * Enable HAP INTA (interrupt from management bus) to
1460 * wake device's PCI Express link L1a -> L0s
1461 * NOTE: This is no-op for 3945 (non-existant bit)
1463 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
1464 CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A);
1467 * HW bug W/A for instability in PCIe bus L0->L0S->L1 transition.
1468 * Check if BIOS (or OS) enabled L1-ASPM on this device.
1469 * If so (likely), disable L0S, so device moves directly L0->L1;
1470 * costs negligible amount of power savings.
1471 * If not (unlikely), enable L0S, so there is at least some
1472 * power savings, even without L1.
1474 if (priv->cfg->set_l0s) {
1475 lctl = iwl_pcie_link_ctl(priv);
1476 if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) ==
1477 PCI_CFG_LINK_CTRL_VAL_L1_EN) {
1478 /* L1-ASPM enabled; disable(!) L0S */
1479 iwl_set_bit(priv, CSR_GIO_REG,
1480 CSR_GIO_REG_VAL_L0S_ENABLED);
1481 IWL_DEBUG_POWER(priv, "L1 Enabled; Disabling L0S\n");
1483 /* L1-ASPM disabled; enable(!) L0S */
1484 iwl_clear_bit(priv, CSR_GIO_REG,
1485 CSR_GIO_REG_VAL_L0S_ENABLED);
1486 IWL_DEBUG_POWER(priv, "L1 Disabled; Enabling L0S\n");
1490 /* Configure analog phase-lock-loop before activating to D0A */
1491 if (priv->cfg->pll_cfg_val)
1492 iwl_set_bit(priv, CSR_ANA_PLL_CFG, priv->cfg->pll_cfg_val);
1495 * Set "initialization complete" bit to move adapter from
1496 * D0U* --> D0A* (powered-up active) state.
1498 iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
1501 * Wait for clock stabilization; once stabilized, access to
1502 * device-internal resources is supported, e.g. iwl_write_prph()
1503 * and accesses to uCode SRAM.
1505 ret = iwl_poll_bit(priv, CSR_GP_CNTRL,
1506 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
1507 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
1509 IWL_DEBUG_INFO(priv, "Failed to init the card\n");
1514 * Enable DMA and BSM (if used) clocks, wait for them to stabilize.
1515 * BSM (Boostrap State Machine) is only in 3945 and 4965;
1516 * later devices (i.e. 5000 and later) have non-volatile SRAM,
1517 * and don't need BSM to restore data after power-saving sleep.
1519 * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits
1520 * do not disable clocks. This preserves any hardware bits already
1521 * set by default in "CLK_CTRL_REG" after reset.
1523 if (priv->cfg->use_bsm)
1524 iwl_write_prph(priv, APMG_CLK_EN_REG,
1525 APMG_CLK_VAL_DMA_CLK_RQT | APMG_CLK_VAL_BSM_CLK_RQT);
1527 iwl_write_prph(priv, APMG_CLK_EN_REG,
1528 APMG_CLK_VAL_DMA_CLK_RQT);
1531 /* Disable L1-Active */
1532 iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
1533 APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
1538 EXPORT_SYMBOL(iwl_apm_init);
1542 void iwl_configure_filter(struct ieee80211_hw *hw,
1543 unsigned int changed_flags,
1544 unsigned int *total_flags,
1547 struct iwl_priv *priv = hw->priv;
1548 __le32 *filter_flags = &priv->staging_rxon.filter_flags;
1550 IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
1551 changed_flags, *total_flags);
1553 if (changed_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS)) {
1554 if (*total_flags & (FIF_OTHER_BSS | FIF_PROMISC_IN_BSS))
1555 *filter_flags |= RXON_FILTER_PROMISC_MSK;
1557 *filter_flags &= ~RXON_FILTER_PROMISC_MSK;
1559 if (changed_flags & FIF_ALLMULTI) {
1560 if (*total_flags & FIF_ALLMULTI)
1561 *filter_flags |= RXON_FILTER_ACCEPT_GRP_MSK;
1563 *filter_flags &= ~RXON_FILTER_ACCEPT_GRP_MSK;
1565 if (changed_flags & FIF_CONTROL) {
1566 if (*total_flags & FIF_CONTROL)
1567 *filter_flags |= RXON_FILTER_CTL2HOST_MSK;
1569 *filter_flags &= ~RXON_FILTER_CTL2HOST_MSK;
1571 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
1572 if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
1573 *filter_flags |= RXON_FILTER_BCON_AWARE_MSK;
1575 *filter_flags &= ~RXON_FILTER_BCON_AWARE_MSK;
1578 /* We avoid iwl_commit_rxon here to commit the new filter flags
1579 * since mac80211 will call ieee80211_hw_config immediately.
1580 * (mc_list is not supported at this time). Otherwise, we need to
1581 * queue a background iwl_commit_rxon work.
1584 *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
1585 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
1587 EXPORT_SYMBOL(iwl_configure_filter);
1589 int iwl_set_hw_params(struct iwl_priv *priv)
1591 priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
1592 priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
1593 if (priv->cfg->mod_params->amsdu_size_8K)
1594 priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_8K);
1596 priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_4K);
1598 priv->hw_params.max_beacon_itrvl = IWL_MAX_UCODE_BEACON_INTERVAL;
1600 if (priv->cfg->mod_params->disable_11n)
1601 priv->cfg->sku &= ~IWL_SKU_N;
1603 /* Device-specific setup */
1604 return priv->cfg->ops->lib->set_hw_params(priv);
1606 EXPORT_SYMBOL(iwl_set_hw_params);
1608 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
1611 s8 prev_tx_power = priv->tx_power_user_lmt;
1613 if (tx_power < IWL_TX_POWER_TARGET_POWER_MIN) {
1614 IWL_WARN(priv, "Requested user TXPOWER %d below lower limit %d.\n",
1616 IWL_TX_POWER_TARGET_POWER_MIN);
1620 if (tx_power > priv->tx_power_device_lmt) {
1622 "Requested user TXPOWER %d above upper limit %d.\n",
1623 tx_power, priv->tx_power_device_lmt);
1627 if (priv->tx_power_user_lmt != tx_power)
1630 /* if nic is not up don't send command */
1631 if (iwl_is_ready_rf(priv)) {
1632 priv->tx_power_user_lmt = tx_power;
1633 if (force && priv->cfg->ops->lib->send_tx_power)
1634 ret = priv->cfg->ops->lib->send_tx_power(priv);
1635 else if (!priv->cfg->ops->lib->send_tx_power)
1638 * if fail to set tx_power, restore the orig. tx power
1641 priv->tx_power_user_lmt = prev_tx_power;
1645 * Even this is an async host command, the command
1646 * will always report success from uCode
1647 * So once driver can placing the command into the queue
1648 * successfully, driver can use priv->tx_power_user_lmt
1649 * to reflect the current tx power
1653 EXPORT_SYMBOL(iwl_set_tx_power);
1655 #define ICT_COUNT (PAGE_SIZE/sizeof(u32))
1657 /* Free dram table */
1658 void iwl_free_isr_ict(struct iwl_priv *priv)
1660 if (priv->ict_tbl_vir) {
1661 pci_free_consistent(priv->pci_dev, (sizeof(u32) * ICT_COUNT) +
1662 PAGE_SIZE, priv->ict_tbl_vir,
1664 priv->ict_tbl_vir = NULL;
1667 EXPORT_SYMBOL(iwl_free_isr_ict);
1670 /* allocate dram shared table it is a PAGE_SIZE aligned
1671 * also reset all data related to ICT table interrupt.
1673 int iwl_alloc_isr_ict(struct iwl_priv *priv)
1676 if (priv->cfg->use_isr_legacy)
1678 /* allocate shrared data table */
1679 priv->ict_tbl_vir = pci_alloc_consistent(priv->pci_dev, (sizeof(u32) *
1680 ICT_COUNT) + PAGE_SIZE,
1681 &priv->ict_tbl_dma);
1682 if (!priv->ict_tbl_vir)
1685 /* align table to PAGE_SIZE boundry */
1686 priv->aligned_ict_tbl_dma = ALIGN(priv->ict_tbl_dma, PAGE_SIZE);
1688 IWL_DEBUG_ISR(priv, "ict dma addr %Lx dma aligned %Lx diff %d\n",
1689 (unsigned long long)priv->ict_tbl_dma,
1690 (unsigned long long)priv->aligned_ict_tbl_dma,
1691 (int)(priv->aligned_ict_tbl_dma - priv->ict_tbl_dma));
1693 priv->ict_tbl = priv->ict_tbl_vir +
1694 (priv->aligned_ict_tbl_dma - priv->ict_tbl_dma);
1696 IWL_DEBUG_ISR(priv, "ict vir addr %p vir aligned %p diff %d\n",
1697 priv->ict_tbl, priv->ict_tbl_vir,
1698 (int)(priv->aligned_ict_tbl_dma - priv->ict_tbl_dma));
1700 /* reset table and index to all 0 */
1701 memset(priv->ict_tbl_vir,0, (sizeof(u32) * ICT_COUNT) + PAGE_SIZE);
1702 priv->ict_index = 0;
1704 /* add periodic RX interrupt */
1705 priv->inta_mask |= CSR_INT_BIT_RX_PERIODIC;
1708 EXPORT_SYMBOL(iwl_alloc_isr_ict);
1710 /* Device is going up inform it about using ICT interrupt table,
1711 * also we need to tell the driver to start using ICT interrupt.
1713 int iwl_reset_ict(struct iwl_priv *priv)
1716 unsigned long flags;
1718 if (!priv->ict_tbl_vir)
1721 spin_lock_irqsave(&priv->lock, flags);
1722 iwl_disable_interrupts(priv);
1724 memset(&priv->ict_tbl[0], 0, sizeof(u32) * ICT_COUNT);
1726 val = priv->aligned_ict_tbl_dma >> PAGE_SHIFT;
1728 val |= CSR_DRAM_INT_TBL_ENABLE;
1729 val |= CSR_DRAM_INIT_TBL_WRAP_CHECK;
1731 IWL_DEBUG_ISR(priv, "CSR_DRAM_INT_TBL_REG =0x%X "
1732 "aligned dma address %Lx\n",
1733 val, (unsigned long long)priv->aligned_ict_tbl_dma);
1735 iwl_write32(priv, CSR_DRAM_INT_TBL_REG, val);
1736 priv->use_ict = true;
1737 priv->ict_index = 0;
1738 iwl_write32(priv, CSR_INT, priv->inta_mask);
1739 iwl_enable_interrupts(priv);
1740 spin_unlock_irqrestore(&priv->lock, flags);
1744 EXPORT_SYMBOL(iwl_reset_ict);
1746 /* Device is going down disable ict interrupt usage */
1747 void iwl_disable_ict(struct iwl_priv *priv)
1749 unsigned long flags;
1751 spin_lock_irqsave(&priv->lock, flags);
1752 priv->use_ict = false;
1753 spin_unlock_irqrestore(&priv->lock, flags);
1755 EXPORT_SYMBOL(iwl_disable_ict);
1757 /* interrupt handler using ict table, with this interrupt driver will
1758 * stop using INTA register to get device's interrupt, reading this register
1759 * is expensive, device will write interrupts in ICT dram table, increment
1760 * index then will fire interrupt to driver, driver will OR all ICT table
1761 * entries from current index up to table entry with 0 value. the result is
1762 * the interrupt we need to service, driver will set the entries back to 0 and
1765 irqreturn_t iwl_isr_ict(int irq, void *data)
1767 struct iwl_priv *priv = data;
1768 u32 inta, inta_mask;
1774 /* dram interrupt table not set yet,
1775 * use legacy interrupt.
1778 return iwl_isr(irq, data);
1780 spin_lock(&priv->lock);
1782 /* Disable (but don't clear!) interrupts here to avoid
1783 * back-to-back ISRs and sporadic interrupts from our NIC.
1784 * If we have something to service, the tasklet will re-enable ints.
1785 * If we *don't* have something, we'll re-enable before leaving here.
1787 inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
1788 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
1791 /* Ignore interrupt if there's nothing in NIC to service.
1792 * This may be due to IRQ shared with another device,
1793 * or due to sporadic interrupts thrown from our NIC. */
1794 if (!priv->ict_tbl[priv->ict_index]) {
1795 IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0\n");
1799 /* read all entries that not 0 start with ict_index */
1800 while (priv->ict_tbl[priv->ict_index]) {
1802 val |= le32_to_cpu(priv->ict_tbl[priv->ict_index]);
1803 IWL_DEBUG_ISR(priv, "ICT index %d value 0x%08X\n",
1805 le32_to_cpu(priv->ict_tbl[priv->ict_index]));
1806 priv->ict_tbl[priv->ict_index] = 0;
1807 priv->ict_index = iwl_queue_inc_wrap(priv->ict_index,
1812 /* We should not get this value, just ignore it. */
1813 if (val == 0xffffffff)
1816 inta = (0xff & val) | ((0xff00 & val) << 16);
1817 IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x ict 0x%08x\n",
1818 inta, inta_mask, val);
1820 inta &= priv->inta_mask;
1823 /* iwl_irq_tasklet() will service interrupts and re-enable them */
1825 tasklet_schedule(&priv->irq_tasklet);
1826 else if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta) {
1827 /* Allow interrupt if was disabled by this handler and
1828 * no tasklet was schedules, We should not enable interrupt,
1829 * tasklet will enable it.
1831 iwl_enable_interrupts(priv);
1834 spin_unlock(&priv->lock);
1838 /* re-enable interrupts here since we don't have anything to service.
1839 * only Re-enable if disabled by irq.
1841 if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta)
1842 iwl_enable_interrupts(priv);
1844 spin_unlock(&priv->lock);
1847 EXPORT_SYMBOL(iwl_isr_ict);
1850 static irqreturn_t iwl_isr(int irq, void *data)
1852 struct iwl_priv *priv = data;
1853 u32 inta, inta_mask;
1854 #ifdef CONFIG_IWLWIFI_DEBUG
1860 spin_lock(&priv->lock);
1862 /* Disable (but don't clear!) interrupts here to avoid
1863 * back-to-back ISRs and sporadic interrupts from our NIC.
1864 * If we have something to service, the tasklet will re-enable ints.
1865 * If we *don't* have something, we'll re-enable before leaving here. */
1866 inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
1867 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
1869 /* Discover which interrupts are active/pending */
1870 inta = iwl_read32(priv, CSR_INT);
1872 /* Ignore interrupt if there's nothing in NIC to service.
1873 * This may be due to IRQ shared with another device,
1874 * or due to sporadic interrupts thrown from our NIC. */
1876 IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0\n");
1880 if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
1881 /* Hardware disappeared. It might have already raised
1883 IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta);
1887 #ifdef CONFIG_IWLWIFI_DEBUG
1888 if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) {
1889 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1890 IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, "
1891 "fh 0x%08x\n", inta, inta_mask, inta_fh);
1896 /* iwl_irq_tasklet() will service interrupts and re-enable them */
1898 tasklet_schedule(&priv->irq_tasklet);
1899 else if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta)
1900 iwl_enable_interrupts(priv);
1903 spin_unlock(&priv->lock);
1907 /* re-enable interrupts here since we don't have anything to service. */
1908 /* only Re-enable if diabled by irq and no schedules tasklet. */
1909 if (test_bit(STATUS_INT_ENABLED, &priv->status) && !priv->inta)
1910 iwl_enable_interrupts(priv);
1912 spin_unlock(&priv->lock);
1916 irqreturn_t iwl_isr_legacy(int irq, void *data)
1918 struct iwl_priv *priv = data;
1919 u32 inta, inta_mask;
1924 spin_lock(&priv->lock);
1926 /* Disable (but don't clear!) interrupts here to avoid
1927 * back-to-back ISRs and sporadic interrupts from our NIC.
1928 * If we have something to service, the tasklet will re-enable ints.
1929 * If we *don't* have something, we'll re-enable before leaving here. */
1930 inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
1931 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
1933 /* Discover which interrupts are active/pending */
1934 inta = iwl_read32(priv, CSR_INT);
1935 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1937 /* Ignore interrupt if there's nothing in NIC to service.
1938 * This may be due to IRQ shared with another device,
1939 * or due to sporadic interrupts thrown from our NIC. */
1940 if (!inta && !inta_fh) {
1941 IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0, inta_fh == 0\n");
1945 if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
1946 /* Hardware disappeared. It might have already raised
1948 IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta);
1952 IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1953 inta, inta_mask, inta_fh);
1955 inta &= ~CSR_INT_BIT_SCD;
1957 /* iwl_irq_tasklet() will service interrupts and re-enable them */
1958 if (likely(inta || inta_fh))
1959 tasklet_schedule(&priv->irq_tasklet);
1962 spin_unlock(&priv->lock);
1966 /* re-enable interrupts here since we don't have anything to service. */
1967 /* only Re-enable if diabled by irq */
1968 if (test_bit(STATUS_INT_ENABLED, &priv->status))
1969 iwl_enable_interrupts(priv);
1970 spin_unlock(&priv->lock);
1973 EXPORT_SYMBOL(iwl_isr_legacy);
1975 int iwl_send_bt_config(struct iwl_priv *priv)
1977 struct iwl_bt_cmd bt_cmd = {
1978 .flags = BT_COEX_MODE_4W,
1979 .lead_time = BT_LEAD_TIME_DEF,
1980 .max_kill = BT_MAX_KILL_DEF,
1985 return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
1986 sizeof(struct iwl_bt_cmd), &bt_cmd);
1988 EXPORT_SYMBOL(iwl_send_bt_config);
1990 int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear)
1992 struct iwl_statistics_cmd statistics_cmd = {
1993 .configuration_flags =
1994 clear ? IWL_STATS_CONF_CLEAR_STATS : 0,
1997 if (flags & CMD_ASYNC)
1998 return iwl_send_cmd_pdu_async(priv, REPLY_STATISTICS_CMD,
1999 sizeof(struct iwl_statistics_cmd),
2000 &statistics_cmd, NULL);
2002 return iwl_send_cmd_pdu(priv, REPLY_STATISTICS_CMD,
2003 sizeof(struct iwl_statistics_cmd),
2006 EXPORT_SYMBOL(iwl_send_statistics_request);
2009 * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
2010 * using sample data 100 bytes apart. If these sample points are good,
2011 * it's a pretty good bet that everything between them is good, too.
2013 static int iwlcore_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
2020 IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
2022 for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
2023 /* read data comes through single port, auto-incr addr */
2024 /* NOTE: Use the debugless read so we don't flood kernel log
2025 * if IWL_DL_IO is set */
2026 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
2027 i + IWL49_RTC_INST_LOWER_BOUND);
2028 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
2029 if (val != le32_to_cpu(*image)) {
2041 * iwlcore_verify_inst_full - verify runtime uCode image in card vs. host,
2042 * looking at all data.
2044 static int iwl_verify_inst_full(struct iwl_priv *priv, __le32 *image,
2052 IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
2054 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
2055 IWL49_RTC_INST_LOWER_BOUND);
2058 for (; len > 0; len -= sizeof(u32), image++) {
2059 /* read data comes through single port, auto-incr addr */
2060 /* NOTE: Use the debugless read so we don't flood kernel log
2061 * if IWL_DL_IO is set */
2062 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
2063 if (val != le32_to_cpu(*image)) {
2064 IWL_ERR(priv, "uCode INST section is invalid at "
2065 "offset 0x%x, is 0x%x, s/b 0x%x\n",
2066 save_len - len, val, le32_to_cpu(*image));
2075 IWL_DEBUG_INFO(priv,
2076 "ucode image in INSTRUCTION memory is good\n");
2082 * iwl_verify_ucode - determine which instruction image is in SRAM,
2083 * and verify its contents
2085 int iwl_verify_ucode(struct iwl_priv *priv)
2092 image = (__le32 *)priv->ucode_boot.v_addr;
2093 len = priv->ucode_boot.len;
2094 ret = iwlcore_verify_inst_sparse(priv, image, len);
2096 IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n");
2100 /* Try initialize */
2101 image = (__le32 *)priv->ucode_init.v_addr;
2102 len = priv->ucode_init.len;
2103 ret = iwlcore_verify_inst_sparse(priv, image, len);
2105 IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n");
2109 /* Try runtime/protocol */
2110 image = (__le32 *)priv->ucode_code.v_addr;
2111 len = priv->ucode_code.len;
2112 ret = iwlcore_verify_inst_sparse(priv, image, len);
2114 IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n");
2118 IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
2120 /* Since nothing seems to match, show first several data entries in
2121 * instruction SRAM, so maybe visual inspection will give a clue.
2122 * Selection of bootstrap image (vs. other images) is arbitrary. */
2123 image = (__le32 *)priv->ucode_boot.v_addr;
2124 len = priv->ucode_boot.len;
2125 ret = iwl_verify_inst_full(priv, image, len);
2129 EXPORT_SYMBOL(iwl_verify_ucode);
2132 void iwl_rf_kill_ct_config(struct iwl_priv *priv)
2134 struct iwl_ct_kill_config cmd;
2135 struct iwl_ct_kill_throttling_config adv_cmd;
2136 unsigned long flags;
2139 spin_lock_irqsave(&priv->lock, flags);
2140 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
2141 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
2142 spin_unlock_irqrestore(&priv->lock, flags);
2143 priv->thermal_throttle.ct_kill_toggle = false;
2145 if (priv->cfg->support_ct_kill_exit) {
2146 adv_cmd.critical_temperature_enter =
2147 cpu_to_le32(priv->hw_params.ct_kill_threshold);
2148 adv_cmd.critical_temperature_exit =
2149 cpu_to_le32(priv->hw_params.ct_kill_exit_threshold);
2151 ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
2152 sizeof(adv_cmd), &adv_cmd);
2154 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
2156 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
2158 "critical temperature enter is %d,"
2160 priv->hw_params.ct_kill_threshold,
2161 priv->hw_params.ct_kill_exit_threshold);
2163 cmd.critical_temperature_R =
2164 cpu_to_le32(priv->hw_params.ct_kill_threshold);
2166 ret = iwl_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
2169 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
2171 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
2173 "critical temperature is %d\n",
2174 priv->hw_params.ct_kill_threshold);
2177 EXPORT_SYMBOL(iwl_rf_kill_ct_config);
2183 * Use: Sets the device's internal card state to enable, disable, or halt
2185 * When in the 'enable' state the card operates as normal.
2186 * When in the 'disable' state, the card enters into a low power mode.
2187 * When in the 'halt' state, the card is shut down and must be fully
2188 * restarted to come back on.
2190 int iwl_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag)
2192 struct iwl_host_cmd cmd = {
2193 .id = REPLY_CARD_STATE_CMD,
2199 return iwl_send_cmd(priv, &cmd);
2202 void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
2203 struct iwl_rx_mem_buffer *rxb)
2205 #ifdef CONFIG_IWLWIFI_DEBUG
2206 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2207 struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif);
2208 IWL_DEBUG_RX(priv, "sleep mode: %d, src: %d\n",
2209 sleep->pm_sleep_mode, sleep->pm_wakeup_src);
2212 EXPORT_SYMBOL(iwl_rx_pm_sleep_notif);
2214 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
2215 struct iwl_rx_mem_buffer *rxb)
2217 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2218 u32 len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
2219 IWL_DEBUG_RADIO(priv, "Dumping %d bytes of unhandled "
2220 "notification for %s:\n", len,
2221 get_cmd_string(pkt->hdr.cmd));
2222 iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, len);
2224 EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif);
2226 void iwl_rx_reply_error(struct iwl_priv *priv,
2227 struct iwl_rx_mem_buffer *rxb)
2229 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2231 IWL_ERR(priv, "Error Reply type 0x%08X cmd %s (0x%02X) "
2232 "seq 0x%04X ser 0x%08X\n",
2233 le32_to_cpu(pkt->u.err_resp.error_type),
2234 get_cmd_string(pkt->u.err_resp.cmd_id),
2235 pkt->u.err_resp.cmd_id,
2236 le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
2237 le32_to_cpu(pkt->u.err_resp.error_info));
2239 EXPORT_SYMBOL(iwl_rx_reply_error);
2241 void iwl_clear_isr_stats(struct iwl_priv *priv)
2243 memset(&priv->isr_stats, 0, sizeof(priv->isr_stats));
2246 int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
2247 const struct ieee80211_tx_queue_params *params)
2249 struct iwl_priv *priv = hw->priv;
2250 unsigned long flags;
2253 IWL_DEBUG_MAC80211(priv, "enter\n");
2255 if (!iwl_is_ready_rf(priv)) {
2256 IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
2260 if (queue >= AC_NUM) {
2261 IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue);
2265 q = AC_NUM - 1 - queue;
2267 spin_lock_irqsave(&priv->lock, flags);
2269 priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
2270 priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
2271 priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
2272 priv->qos_data.def_qos_parm.ac[q].edca_txop =
2273 cpu_to_le16((params->txop * 32));
2275 priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
2276 priv->qos_data.qos_active = 1;
2278 if (priv->iw_mode == NL80211_IFTYPE_AP)
2279 iwl_activate_qos(priv, 1);
2280 else if (priv->assoc_id && iwl_is_associated(priv))
2281 iwl_activate_qos(priv, 0);
2283 spin_unlock_irqrestore(&priv->lock, flags);
2285 IWL_DEBUG_MAC80211(priv, "leave\n");
2288 EXPORT_SYMBOL(iwl_mac_conf_tx);
2290 static void iwl_ht_conf(struct iwl_priv *priv,
2291 struct ieee80211_bss_conf *bss_conf)
2293 struct iwl_ht_config *ht_conf = &priv->current_ht_config;
2294 struct ieee80211_sta *sta;
2296 IWL_DEBUG_MAC80211(priv, "enter: \n");
2298 if (!ht_conf->is_ht)
2301 ht_conf->ht_protection =
2302 bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_PROTECTION;
2303 ht_conf->non_GF_STA_present =
2304 !!(bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
2306 ht_conf->single_chain_sufficient = false;
2308 switch (priv->iw_mode) {
2309 case NL80211_IFTYPE_STATION:
2311 sta = ieee80211_find_sta(priv->vif, priv->bssid);
2313 struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
2316 maxstreams = (ht_cap->mcs.tx_params &
2317 IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK)
2318 >> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
2321 if ((ht_cap->mcs.rx_mask[1] == 0) &&
2322 (ht_cap->mcs.rx_mask[2] == 0))
2323 ht_conf->single_chain_sufficient = true;
2324 if (maxstreams <= 1)
2325 ht_conf->single_chain_sufficient = true;
2328 * If at all, this can only happen through a race
2329 * when the AP disconnects us while we're still
2330 * setting up the connection, in that case mac80211
2331 * will soon tell us about that.
2333 ht_conf->single_chain_sufficient = true;
2337 case NL80211_IFTYPE_ADHOC:
2338 ht_conf->single_chain_sufficient = true;
2344 IWL_DEBUG_MAC80211(priv, "leave\n");
2347 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
2348 void iwl_bss_info_changed(struct ieee80211_hw *hw,
2349 struct ieee80211_vif *vif,
2350 struct ieee80211_bss_conf *bss_conf,
2353 struct iwl_priv *priv = hw->priv;
2356 IWL_DEBUG_MAC80211(priv, "changes = 0x%X\n", changes);
2358 if (!iwl_is_alive(priv))
2361 mutex_lock(&priv->mutex);
2363 if (changes & BSS_CHANGED_BEACON &&
2364 priv->iw_mode == NL80211_IFTYPE_AP) {
2365 dev_kfree_skb(priv->ibss_beacon);
2366 priv->ibss_beacon = ieee80211_beacon_get(hw, vif);
2369 if (changes & BSS_CHANGED_BEACON_INT) {
2370 priv->beacon_int = bss_conf->beacon_int;
2371 /* TODO: in AP mode, do something to make this take effect */
2374 if (changes & BSS_CHANGED_BSSID) {
2375 IWL_DEBUG_MAC80211(priv, "BSSID %pM\n", bss_conf->bssid);
2378 * If there is currently a HW scan going on in the
2379 * background then we need to cancel it else the RXON
2380 * below/in post_associate will fail.
2382 if (iwl_scan_cancel_timeout(priv, 100)) {
2383 IWL_WARN(priv, "Aborted scan still in progress after 100ms\n");
2384 IWL_DEBUG_MAC80211(priv, "leaving - scan abort failed.\n");
2385 mutex_unlock(&priv->mutex);
2389 /* mac80211 only sets assoc when in STATION mode */
2390 if (priv->iw_mode == NL80211_IFTYPE_ADHOC ||
2392 memcpy(priv->staging_rxon.bssid_addr,
2393 bss_conf->bssid, ETH_ALEN);
2395 /* currently needed in a few places */
2396 memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN);
2398 priv->staging_rxon.filter_flags &=
2399 ~RXON_FILTER_ASSOC_MSK;
2405 * This needs to be after setting the BSSID in case
2406 * mac80211 decides to do both changes at once because
2407 * it will invoke post_associate.
2409 if (priv->iw_mode == NL80211_IFTYPE_ADHOC &&
2410 changes & BSS_CHANGED_BEACON) {
2411 struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
2414 iwl_mac_beacon_update(hw, beacon);
2417 if (changes & BSS_CHANGED_ERP_PREAMBLE) {
2418 IWL_DEBUG_MAC80211(priv, "ERP_PREAMBLE %d\n",
2419 bss_conf->use_short_preamble);
2420 if (bss_conf->use_short_preamble)
2421 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
2423 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
2426 if (changes & BSS_CHANGED_ERP_CTS_PROT) {
2427 IWL_DEBUG_MAC80211(priv, "ERP_CTS %d\n", bss_conf->use_cts_prot);
2428 if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
2429 priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
2431 priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
2434 if (changes & BSS_CHANGED_BASIC_RATES) {
2435 /* XXX use this information
2437 * To do that, remove code from iwl_set_rate() and put something
2441 priv->staging_rxon.ofdm_basic_rates =
2442 bss_conf->basic_rates;
2444 priv->staging_rxon.ofdm_basic_rates =
2445 bss_conf->basic_rates >> 4;
2446 priv->staging_rxon.cck_basic_rates =
2447 bss_conf->basic_rates & 0xF;
2451 if (changes & BSS_CHANGED_HT) {
2452 iwl_ht_conf(priv, bss_conf);
2454 if (priv->cfg->ops->hcmd->set_rxon_chain)
2455 priv->cfg->ops->hcmd->set_rxon_chain(priv);
2458 if (changes & BSS_CHANGED_ASSOC) {
2459 IWL_DEBUG_MAC80211(priv, "ASSOC %d\n", bss_conf->assoc);
2460 if (bss_conf->assoc) {
2461 priv->assoc_id = bss_conf->aid;
2462 priv->beacon_int = bss_conf->beacon_int;
2463 priv->timestamp = bss_conf->timestamp;
2464 priv->assoc_capability = bss_conf->assoc_capability;
2466 iwl_led_associate(priv);
2469 * We have just associated, don't start scan too early
2470 * leave time for EAPOL exchange to complete.
2472 * XXX: do this in mac80211
2474 priv->next_scan_jiffies = jiffies +
2475 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
2476 if (!iwl_is_rfkill(priv))
2477 priv->cfg->ops->lib->post_associate(priv);
2480 iwl_led_disassociate(priv);
2484 if (changes && iwl_is_associated(priv) && priv->assoc_id) {
2485 IWL_DEBUG_MAC80211(priv, "Changes (%#x) while associated\n",
2487 ret = iwl_send_rxon_assoc(priv);
2489 /* Sync active_rxon with latest change. */
2490 memcpy((void *)&priv->active_rxon,
2491 &priv->staging_rxon,
2492 sizeof(struct iwl_rxon_cmd));
2496 if ((changes & BSS_CHANGED_BEACON_ENABLED) &&
2497 vif->bss_conf.enable_beacon) {
2498 memcpy(priv->staging_rxon.bssid_addr,
2499 bss_conf->bssid, ETH_ALEN);
2500 memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN);
2501 iwlcore_config_ap(priv);
2504 mutex_unlock(&priv->mutex);
2506 IWL_DEBUG_MAC80211(priv, "leave\n");
2508 EXPORT_SYMBOL(iwl_bss_info_changed);
2510 int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
2512 struct iwl_priv *priv = hw->priv;
2513 unsigned long flags;
2516 IWL_DEBUG_MAC80211(priv, "enter\n");
2518 if (!iwl_is_ready_rf(priv)) {
2519 IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
2523 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
2524 IWL_DEBUG_MAC80211(priv, "leave - not IBSS\n");
2528 spin_lock_irqsave(&priv->lock, flags);
2530 if (priv->ibss_beacon)
2531 dev_kfree_skb(priv->ibss_beacon);
2533 priv->ibss_beacon = skb;
2536 timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp;
2537 priv->timestamp = le64_to_cpu(timestamp);
2539 IWL_DEBUG_MAC80211(priv, "leave\n");
2540 spin_unlock_irqrestore(&priv->lock, flags);
2542 iwl_reset_qos(priv);
2544 priv->cfg->ops->lib->post_associate(priv);
2549 EXPORT_SYMBOL(iwl_mac_beacon_update);
2551 int iwl_set_mode(struct iwl_priv *priv, int mode)
2553 if (mode == NL80211_IFTYPE_ADHOC) {
2554 const struct iwl_channel_info *ch_info;
2556 ch_info = iwl_get_channel_info(priv,
2558 le16_to_cpu(priv->staging_rxon.channel));
2560 if (!ch_info || !is_channel_ibss(ch_info)) {
2561 IWL_ERR(priv, "channel %d not IBSS channel\n",
2562 le16_to_cpu(priv->staging_rxon.channel));
2567 iwl_connection_init_rx_config(priv, mode);
2569 if (priv->cfg->ops->hcmd->set_rxon_chain)
2570 priv->cfg->ops->hcmd->set_rxon_chain(priv);
2572 memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
2574 iwl_clear_stations_table(priv);
2576 /* dont commit rxon if rf-kill is on*/
2577 if (!iwl_is_ready_rf(priv))
2580 iwlcore_commit_rxon(priv);
2584 EXPORT_SYMBOL(iwl_set_mode);
2586 int iwl_mac_add_interface(struct ieee80211_hw *hw,
2587 struct ieee80211_if_init_conf *conf)
2589 struct iwl_priv *priv = hw->priv;
2590 unsigned long flags;
2592 IWL_DEBUG_MAC80211(priv, "enter: type %d\n", conf->type);
2595 IWL_DEBUG_MAC80211(priv, "leave - vif != NULL\n");
2599 spin_lock_irqsave(&priv->lock, flags);
2600 priv->vif = conf->vif;
2601 priv->iw_mode = conf->type;
2603 spin_unlock_irqrestore(&priv->lock, flags);
2605 mutex_lock(&priv->mutex);
2607 if (conf->mac_addr) {
2608 IWL_DEBUG_MAC80211(priv, "Set %pM\n", conf->mac_addr);
2609 memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
2612 if (iwl_set_mode(priv, conf->type) == -EAGAIN)
2613 /* we are not ready, will run again when ready */
2614 set_bit(STATUS_MODE_PENDING, &priv->status);
2616 mutex_unlock(&priv->mutex);
2618 IWL_DEBUG_MAC80211(priv, "leave\n");
2621 EXPORT_SYMBOL(iwl_mac_add_interface);
2623 void iwl_mac_remove_interface(struct ieee80211_hw *hw,
2624 struct ieee80211_if_init_conf *conf)
2626 struct iwl_priv *priv = hw->priv;
2628 IWL_DEBUG_MAC80211(priv, "enter\n");
2630 mutex_lock(&priv->mutex);
2632 if (iwl_is_ready_rf(priv)) {
2633 iwl_scan_cancel_timeout(priv, 100);
2634 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2635 iwlcore_commit_rxon(priv);
2637 if (priv->vif == conf->vif) {
2639 memset(priv->bssid, 0, ETH_ALEN);
2641 mutex_unlock(&priv->mutex);
2643 IWL_DEBUG_MAC80211(priv, "leave\n");
2646 EXPORT_SYMBOL(iwl_mac_remove_interface);
2649 * iwl_mac_config - mac80211 config callback
2651 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
2652 * be set inappropriately and the driver currently sets the hardware up to
2653 * use it whenever needed.
2655 int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
2657 struct iwl_priv *priv = hw->priv;
2658 const struct iwl_channel_info *ch_info;
2659 struct ieee80211_conf *conf = &hw->conf;
2660 struct iwl_ht_config *ht_conf = &priv->current_ht_config;
2661 unsigned long flags = 0;
2664 int scan_active = 0;
2666 mutex_lock(&priv->mutex);
2668 IWL_DEBUG_MAC80211(priv, "enter to channel %d changed 0x%X\n",
2669 conf->channel->hw_value, changed);
2671 if (unlikely(!priv->cfg->mod_params->disable_hw_scan &&
2672 test_bit(STATUS_SCANNING, &priv->status))) {
2674 IWL_DEBUG_MAC80211(priv, "leave - scanning\n");
2678 /* during scanning mac80211 will delay channel setting until
2679 * scan finish with changed = 0
2681 if (!changed || (changed & IEEE80211_CONF_CHANGE_CHANNEL)) {
2685 ch = ieee80211_frequency_to_channel(conf->channel->center_freq);
2686 ch_info = iwl_get_channel_info(priv, conf->channel->band, ch);
2687 if (!is_channel_valid(ch_info)) {
2688 IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n");
2693 if (priv->iw_mode == NL80211_IFTYPE_ADHOC &&
2694 !is_channel_ibss(ch_info)) {
2695 IWL_ERR(priv, "channel %d in band %d not "
2697 conf->channel->hw_value, conf->channel->band);
2702 spin_lock_irqsave(&priv->lock, flags);
2704 /* Configure HT40 channels */
2705 ht_conf->is_ht = conf_is_ht(conf);
2706 if (ht_conf->is_ht) {
2707 if (conf_is_ht40_minus(conf)) {
2708 ht_conf->extension_chan_offset =
2709 IEEE80211_HT_PARAM_CHA_SEC_BELOW;
2710 ht_conf->is_40mhz = true;
2711 } else if (conf_is_ht40_plus(conf)) {
2712 ht_conf->extension_chan_offset =
2713 IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
2714 ht_conf->is_40mhz = true;
2716 ht_conf->extension_chan_offset =
2717 IEEE80211_HT_PARAM_CHA_SEC_NONE;
2718 ht_conf->is_40mhz = false;
2721 ht_conf->is_40mhz = false;
2722 /* Default to no protection. Protection mode will later be set
2723 * from BSS config in iwl_ht_conf */
2724 ht_conf->ht_protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE;
2726 /* if we are switching from ht to 2.4 clear flags
2727 * from any ht related info since 2.4 does not
2729 if ((le16_to_cpu(priv->staging_rxon.channel) != ch))
2730 priv->staging_rxon.flags = 0;
2732 iwl_set_rxon_channel(priv, conf->channel);
2734 iwl_set_flags_for_band(priv, conf->channel->band);
2735 spin_unlock_irqrestore(&priv->lock, flags);
2736 if (iwl_is_associated(priv) &&
2737 (le16_to_cpu(priv->active_rxon.channel) != ch) &&
2738 priv->cfg->ops->lib->set_channel_switch) {
2741 * at this point, staging_rxon has the
2742 * configuration for channel switch
2744 ret = priv->cfg->ops->lib->set_channel_switch(priv,
2747 iwl_print_rx_config_cmd(priv);
2750 priv->switch_rxon.switch_in_progress = false;
2753 /* The list of supported rates and rate mask can be different
2754 * for each band; since the band may have changed, reset
2755 * the rate mask to what mac80211 lists */
2759 if (changed & (IEEE80211_CONF_CHANGE_PS |
2760 IEEE80211_CONF_CHANGE_IDLE)) {
2761 ret = iwl_power_update_mode(priv, false);
2763 IWL_DEBUG_MAC80211(priv, "Error setting sleep level\n");
2766 if (changed & IEEE80211_CONF_CHANGE_POWER) {
2767 IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n",
2768 priv->tx_power_user_lmt, conf->power_level);
2770 iwl_set_tx_power(priv, conf->power_level, false);
2773 /* call to ensure that 4965 rx_chain is set properly in monitor mode */
2774 if (priv->cfg->ops->hcmd->set_rxon_chain)
2775 priv->cfg->ops->hcmd->set_rxon_chain(priv);
2777 if (!iwl_is_ready(priv)) {
2778 IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
2785 if (memcmp(&priv->active_rxon,
2786 &priv->staging_rxon, sizeof(priv->staging_rxon)))
2787 iwlcore_commit_rxon(priv);
2789 IWL_DEBUG_INFO(priv, "Not re-sending same RXON configuration.\n");
2793 IWL_DEBUG_MAC80211(priv, "leave\n");
2794 mutex_unlock(&priv->mutex);
2797 EXPORT_SYMBOL(iwl_mac_config);
2799 int iwl_mac_get_tx_stats(struct ieee80211_hw *hw,
2800 struct ieee80211_tx_queue_stats *stats)
2802 struct iwl_priv *priv = hw->priv;
2804 struct iwl_tx_queue *txq;
2805 struct iwl_queue *q;
2806 unsigned long flags;
2808 IWL_DEBUG_MAC80211(priv, "enter\n");
2810 if (!iwl_is_ready_rf(priv)) {
2811 IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
2815 spin_lock_irqsave(&priv->lock, flags);
2817 for (i = 0; i < AC_NUM; i++) {
2818 txq = &priv->txq[i];
2820 avail = iwl_queue_space(q);
2822 stats[i].len = q->n_window - avail;
2823 stats[i].limit = q->n_window - q->high_mark;
2824 stats[i].count = q->n_window;
2827 spin_unlock_irqrestore(&priv->lock, flags);
2829 IWL_DEBUG_MAC80211(priv, "leave\n");
2833 EXPORT_SYMBOL(iwl_mac_get_tx_stats);
2835 void iwl_mac_reset_tsf(struct ieee80211_hw *hw)
2837 struct iwl_priv *priv = hw->priv;
2838 unsigned long flags;
2840 mutex_lock(&priv->mutex);
2841 IWL_DEBUG_MAC80211(priv, "enter\n");
2843 spin_lock_irqsave(&priv->lock, flags);
2844 memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_config));
2845 spin_unlock_irqrestore(&priv->lock, flags);
2847 iwl_reset_qos(priv);
2849 spin_lock_irqsave(&priv->lock, flags);
2851 priv->assoc_capability = 0;
2852 priv->assoc_station_added = 0;
2854 /* new association get rid of ibss beacon skb */
2855 if (priv->ibss_beacon)
2856 dev_kfree_skb(priv->ibss_beacon);
2858 priv->ibss_beacon = NULL;
2860 priv->beacon_int = priv->vif->bss_conf.beacon_int;
2861 priv->timestamp = 0;
2862 if ((priv->iw_mode == NL80211_IFTYPE_STATION))
2863 priv->beacon_int = 0;
2865 spin_unlock_irqrestore(&priv->lock, flags);
2867 if (!iwl_is_ready_rf(priv)) {
2868 IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
2869 mutex_unlock(&priv->mutex);
2873 /* we are restarting association process
2874 * clear RXON_FILTER_ASSOC_MSK bit
2876 if (priv->iw_mode != NL80211_IFTYPE_AP) {
2877 iwl_scan_cancel_timeout(priv, 100);
2878 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2879 iwlcore_commit_rxon(priv);
2882 if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
2883 IWL_DEBUG_MAC80211(priv, "leave - not in IBSS\n");
2884 mutex_unlock(&priv->mutex);
2890 mutex_unlock(&priv->mutex);
2892 IWL_DEBUG_MAC80211(priv, "leave\n");
2894 EXPORT_SYMBOL(iwl_mac_reset_tsf);
2896 int iwl_alloc_txq_mem(struct iwl_priv *priv)
2899 priv->txq = kzalloc(
2900 sizeof(struct iwl_tx_queue) * priv->cfg->num_of_queues,
2903 IWL_ERR(priv, "Not enough memory for txq \n");
2908 EXPORT_SYMBOL(iwl_alloc_txq_mem);
2910 void iwl_free_txq_mem(struct iwl_priv *priv)
2915 EXPORT_SYMBOL(iwl_free_txq_mem);
2917 int iwl_send_wimax_coex(struct iwl_priv *priv)
2919 struct iwl_wimax_coex_cmd uninitialized_var(coex_cmd);
2921 if (priv->cfg->support_wimax_coexist) {
2922 /* UnMask wake up src at associated sleep */
2923 coex_cmd.flags |= COEX_FLAGS_ASSOC_WA_UNMASK_MSK;
2925 /* UnMask wake up src at unassociated sleep */
2926 coex_cmd.flags |= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK;
2927 memcpy(coex_cmd.sta_prio, cu_priorities,
2928 sizeof(struct iwl_wimax_coex_event_entry) *
2929 COEX_NUM_OF_EVENTS);
2931 /* enabling the coexistence feature */
2932 coex_cmd.flags |= COEX_FLAGS_COEX_ENABLE_MSK;
2934 /* enabling the priorities tables */
2935 coex_cmd.flags |= COEX_FLAGS_STA_TABLE_VALID_MSK;
2937 /* coexistence is disabled */
2938 memset(&coex_cmd, 0, sizeof(coex_cmd));
2940 return iwl_send_cmd_pdu(priv, COEX_PRIORITY_TABLE_CMD,
2941 sizeof(coex_cmd), &coex_cmd);
2943 EXPORT_SYMBOL(iwl_send_wimax_coex);
2945 #ifdef CONFIG_IWLWIFI_DEBUGFS
2947 #define IWL_TRAFFIC_DUMP_SIZE (IWL_TRAFFIC_ENTRY_SIZE * IWL_TRAFFIC_ENTRIES)
2949 void iwl_reset_traffic_log(struct iwl_priv *priv)
2951 priv->tx_traffic_idx = 0;
2952 priv->rx_traffic_idx = 0;
2953 if (priv->tx_traffic)
2954 memset(priv->tx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE);
2955 if (priv->rx_traffic)
2956 memset(priv->rx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE);
2959 int iwl_alloc_traffic_mem(struct iwl_priv *priv)
2961 u32 traffic_size = IWL_TRAFFIC_DUMP_SIZE;
2963 if (iwl_debug_level & IWL_DL_TX) {
2964 if (!priv->tx_traffic) {
2966 kzalloc(traffic_size, GFP_KERNEL);
2967 if (!priv->tx_traffic)
2971 if (iwl_debug_level & IWL_DL_RX) {
2972 if (!priv->rx_traffic) {
2974 kzalloc(traffic_size, GFP_KERNEL);
2975 if (!priv->rx_traffic)
2979 iwl_reset_traffic_log(priv);
2982 EXPORT_SYMBOL(iwl_alloc_traffic_mem);
2984 void iwl_free_traffic_mem(struct iwl_priv *priv)
2986 kfree(priv->tx_traffic);
2987 priv->tx_traffic = NULL;
2989 kfree(priv->rx_traffic);
2990 priv->rx_traffic = NULL;
2992 EXPORT_SYMBOL(iwl_free_traffic_mem);
2994 void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
2995 u16 length, struct ieee80211_hdr *header)
3000 if (likely(!(iwl_debug_level & IWL_DL_TX)))
3003 if (!priv->tx_traffic)
3006 fc = header->frame_control;
3007 if (ieee80211_is_data(fc)) {
3008 len = (length > IWL_TRAFFIC_ENTRY_SIZE)
3009 ? IWL_TRAFFIC_ENTRY_SIZE : length;
3010 memcpy((priv->tx_traffic +
3011 (priv->tx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)),
3013 priv->tx_traffic_idx =
3014 (priv->tx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES;
3017 EXPORT_SYMBOL(iwl_dbg_log_tx_data_frame);
3019 void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
3020 u16 length, struct ieee80211_hdr *header)
3025 if (likely(!(iwl_debug_level & IWL_DL_RX)))
3028 if (!priv->rx_traffic)
3031 fc = header->frame_control;
3032 if (ieee80211_is_data(fc)) {
3033 len = (length > IWL_TRAFFIC_ENTRY_SIZE)
3034 ? IWL_TRAFFIC_ENTRY_SIZE : length;
3035 memcpy((priv->rx_traffic +
3036 (priv->rx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)),
3038 priv->rx_traffic_idx =
3039 (priv->rx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES;
3042 EXPORT_SYMBOL(iwl_dbg_log_rx_data_frame);
3044 const char *get_mgmt_string(int cmd)
3047 IWL_CMD(MANAGEMENT_ASSOC_REQ);
3048 IWL_CMD(MANAGEMENT_ASSOC_RESP);
3049 IWL_CMD(MANAGEMENT_REASSOC_REQ);
3050 IWL_CMD(MANAGEMENT_REASSOC_RESP);
3051 IWL_CMD(MANAGEMENT_PROBE_REQ);
3052 IWL_CMD(MANAGEMENT_PROBE_RESP);
3053 IWL_CMD(MANAGEMENT_BEACON);
3054 IWL_CMD(MANAGEMENT_ATIM);
3055 IWL_CMD(MANAGEMENT_DISASSOC);
3056 IWL_CMD(MANAGEMENT_AUTH);
3057 IWL_CMD(MANAGEMENT_DEAUTH);
3058 IWL_CMD(MANAGEMENT_ACTION);
3065 const char *get_ctrl_string(int cmd)
3068 IWL_CMD(CONTROL_BACK_REQ);
3069 IWL_CMD(CONTROL_BACK);
3070 IWL_CMD(CONTROL_PSPOLL);
3071 IWL_CMD(CONTROL_RTS);
3072 IWL_CMD(CONTROL_CTS);
3073 IWL_CMD(CONTROL_ACK);
3074 IWL_CMD(CONTROL_CFEND);
3075 IWL_CMD(CONTROL_CFENDACK);
3082 void iwl_clear_traffic_stats(struct iwl_priv *priv)
3084 memset(&priv->tx_stats, 0, sizeof(struct traffic_stats));
3085 memset(&priv->rx_stats, 0, sizeof(struct traffic_stats));
3090 * if CONFIG_IWLWIFI_DEBUGFS defined, iwl_update_stats function will
3091 * record all the MGMT, CTRL and DATA pkt for both TX and Rx pass.
3092 * Use debugFs to display the rx/rx_statistics
3093 * if CONFIG_IWLWIFI_DEBUGFS not being defined, then no MGMT and CTRL
3094 * information will be recorded, but DATA pkt still will be recorded
3095 * for the reason of iwl_led.c need to control the led blinking based on
3096 * number of tx and rx data.
3099 void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len)
3101 struct traffic_stats *stats;
3104 stats = &priv->tx_stats;
3106 stats = &priv->rx_stats;
3108 if (ieee80211_is_mgmt(fc)) {
3109 switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
3110 case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ):
3111 stats->mgmt[MANAGEMENT_ASSOC_REQ]++;
3113 case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP):
3114 stats->mgmt[MANAGEMENT_ASSOC_RESP]++;
3116 case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ):
3117 stats->mgmt[MANAGEMENT_REASSOC_REQ]++;
3119 case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP):
3120 stats->mgmt[MANAGEMENT_REASSOC_RESP]++;
3122 case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ):
3123 stats->mgmt[MANAGEMENT_PROBE_REQ]++;
3125 case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP):
3126 stats->mgmt[MANAGEMENT_PROBE_RESP]++;
3128 case cpu_to_le16(IEEE80211_STYPE_BEACON):
3129 stats->mgmt[MANAGEMENT_BEACON]++;
3131 case cpu_to_le16(IEEE80211_STYPE_ATIM):
3132 stats->mgmt[MANAGEMENT_ATIM]++;
3134 case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
3135 stats->mgmt[MANAGEMENT_DISASSOC]++;
3137 case cpu_to_le16(IEEE80211_STYPE_AUTH):
3138 stats->mgmt[MANAGEMENT_AUTH]++;
3140 case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
3141 stats->mgmt[MANAGEMENT_DEAUTH]++;
3143 case cpu_to_le16(IEEE80211_STYPE_ACTION):
3144 stats->mgmt[MANAGEMENT_ACTION]++;
3147 } else if (ieee80211_is_ctl(fc)) {
3148 switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
3149 case cpu_to_le16(IEEE80211_STYPE_BACK_REQ):
3150 stats->ctrl[CONTROL_BACK_REQ]++;
3152 case cpu_to_le16(IEEE80211_STYPE_BACK):
3153 stats->ctrl[CONTROL_BACK]++;
3155 case cpu_to_le16(IEEE80211_STYPE_PSPOLL):
3156 stats->ctrl[CONTROL_PSPOLL]++;
3158 case cpu_to_le16(IEEE80211_STYPE_RTS):
3159 stats->ctrl[CONTROL_RTS]++;
3161 case cpu_to_le16(IEEE80211_STYPE_CTS):
3162 stats->ctrl[CONTROL_CTS]++;
3164 case cpu_to_le16(IEEE80211_STYPE_ACK):
3165 stats->ctrl[CONTROL_ACK]++;
3167 case cpu_to_le16(IEEE80211_STYPE_CFEND):
3168 stats->ctrl[CONTROL_CFEND]++;
3170 case cpu_to_le16(IEEE80211_STYPE_CFENDACK):
3171 stats->ctrl[CONTROL_CFENDACK]++;
3177 stats->data_bytes += len;
3179 iwl_leds_background(priv);
3181 EXPORT_SYMBOL(iwl_update_stats);
3186 int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state)
3188 struct iwl_priv *priv = pci_get_drvdata(pdev);
3191 * This function is called when system goes into suspend state
3192 * mac80211 will call iwl_mac_stop() from the mac80211 suspend function
3193 * first but since iwl_mac_stop() has no knowledge of who the caller is,
3194 * it will not call apm_ops.stop() to stop the DMA operation.
3195 * Calling apm_ops.stop here to make sure we stop the DMA.
3197 priv->cfg->ops->lib->apm_ops.stop(priv);
3199 pci_save_state(pdev);
3200 pci_disable_device(pdev);
3201 pci_set_power_state(pdev, PCI_D3hot);
3205 EXPORT_SYMBOL(iwl_pci_suspend);
3207 int iwl_pci_resume(struct pci_dev *pdev)
3209 struct iwl_priv *priv = pci_get_drvdata(pdev);
3212 pci_set_power_state(pdev, PCI_D0);
3213 ret = pci_enable_device(pdev);
3216 pci_restore_state(pdev);
3217 iwl_enable_interrupts(priv);
3221 EXPORT_SYMBOL(iwl_pci_resume);
3223 #endif /* CONFIG_PM */