1 /******************************************************************************
5 * Copyright(c) 2008 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 * Tomas Winkler <tomas.winkler@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/version.h>
32 #include <net/mac80211.h>
34 struct iwl_priv; /* FIXME: remove */
35 #include "iwl-debug.h"
36 #include "iwl-eeprom.h"
37 #include "iwl-dev.h" /* FIXME: remove */
40 #include "iwl-rfkill.h"
41 #include "iwl-power.h"
44 MODULE_DESCRIPTION("iwl core");
45 MODULE_VERSION(IWLWIFI_VERSION);
46 MODULE_AUTHOR(DRV_COPYRIGHT);
47 MODULE_LICENSE("GPL");
49 #ifdef CONFIG_IWLWIFI_DEBUG
51 EXPORT_SYMBOL(iwl_debug_level);
54 #define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \
55 [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
56 IWL_RATE_SISO_##s##M_PLCP, \
57 IWL_RATE_MIMO2_##s##M_PLCP,\
58 IWL_RATE_MIMO3_##s##M_PLCP,\
59 IWL_RATE_##r##M_IEEE, \
60 IWL_RATE_##ip##M_INDEX, \
61 IWL_RATE_##in##M_INDEX, \
62 IWL_RATE_##rp##M_INDEX, \
63 IWL_RATE_##rn##M_INDEX, \
64 IWL_RATE_##pp##M_INDEX, \
65 IWL_RATE_##np##M_INDEX }
69 * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate
71 * If there isn't a valid next or previous rate then INV is used which
72 * maps to IWL_RATE_INVALID
75 const struct iwl4965_rate_info iwl4965_rates[IWL_RATE_COUNT] = {
76 IWL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */
77 IWL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */
78 IWL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */
79 IWL_DECLARE_RATE_INFO(11, INV, 9, 12, 9, 12, 5, 18), /* 11mbps */
80 IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */
81 IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */
82 IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */
83 IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */
84 IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */
85 IWL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */
86 IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */
87 IWL_DECLARE_RATE_INFO(54, 54, 48, INV, 48, INV, 48, INV),/* 54mbps */
88 IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */
89 /* FIXME:RS: ^^ should be INV (legacy) */
91 EXPORT_SYMBOL(iwl4965_rates);
93 /* This function both allocates and initializes hw and priv. */
94 struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
95 struct ieee80211_ops *hw_ops)
97 struct iwl_priv *priv;
99 /* mac80211 allocates memory for this device instance, including
100 * space for this driver's private structure */
101 struct ieee80211_hw *hw =
102 ieee80211_alloc_hw(sizeof(struct iwl_priv), hw_ops);
104 IWL_ERROR("Can not allocate network device\n");
114 EXPORT_SYMBOL(iwl_alloc_all);
116 void iwl_hw_detect(struct iwl_priv *priv)
118 priv->hw_rev = _iwl_read32(priv, CSR_HW_REV);
119 priv->hw_wa_rev = _iwl_read32(priv, CSR_HW_REV_WA_REG);
120 pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &priv->rev_id);
122 EXPORT_SYMBOL(iwl_hw_detect);
125 * iwlcore_clear_stations_table - Clear the driver's station table
127 * NOTE: This does not clear or otherwise alter the device's station table.
129 void iwlcore_clear_stations_table(struct iwl_priv *priv)
133 spin_lock_irqsave(&priv->sta_lock, flags);
135 priv->num_stations = 0;
136 memset(priv->stations, 0, sizeof(priv->stations));
138 spin_unlock_irqrestore(&priv->sta_lock, flags);
140 EXPORT_SYMBOL(iwlcore_clear_stations_table);
142 void iwl_reset_qos(struct iwl_priv *priv)
151 spin_lock_irqsave(&priv->lock, flags);
152 priv->qos_data.qos_active = 0;
154 if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) {
155 if (priv->qos_data.qos_enable)
156 priv->qos_data.qos_active = 1;
157 if (!(priv->active_rate & 0xfff0)) {
161 } else if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
162 if (priv->qos_data.qos_enable)
163 priv->qos_data.qos_active = 1;
164 } else if (!(priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK)) {
169 if (priv->qos_data.qos_active)
172 priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min);
173 priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max);
174 priv->qos_data.def_qos_parm.ac[0].aifsn = aifs;
175 priv->qos_data.def_qos_parm.ac[0].edca_txop = 0;
176 priv->qos_data.def_qos_parm.ac[0].reserved1 = 0;
178 if (priv->qos_data.qos_active) {
180 priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min);
181 priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max);
182 priv->qos_data.def_qos_parm.ac[i].aifsn = 7;
183 priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
184 priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
187 priv->qos_data.def_qos_parm.ac[i].cw_min =
188 cpu_to_le16((cw_min + 1) / 2 - 1);
189 priv->qos_data.def_qos_parm.ac[i].cw_max =
191 priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
193 priv->qos_data.def_qos_parm.ac[i].edca_txop =
196 priv->qos_data.def_qos_parm.ac[i].edca_txop =
198 priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
201 priv->qos_data.def_qos_parm.ac[i].cw_min =
202 cpu_to_le16((cw_min + 1) / 4 - 1);
203 priv->qos_data.def_qos_parm.ac[i].cw_max =
204 cpu_to_le16((cw_max + 1) / 2 - 1);
205 priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
206 priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
208 priv->qos_data.def_qos_parm.ac[i].edca_txop =
211 priv->qos_data.def_qos_parm.ac[i].edca_txop =
214 for (i = 1; i < 4; i++) {
215 priv->qos_data.def_qos_parm.ac[i].cw_min =
217 priv->qos_data.def_qos_parm.ac[i].cw_max =
219 priv->qos_data.def_qos_parm.ac[i].aifsn = aifs;
220 priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
221 priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
224 IWL_DEBUG_QOS("set QoS to default \n");
226 spin_unlock_irqrestore(&priv->lock, flags);
228 EXPORT_SYMBOL(iwl_reset_qos);
230 #ifdef CONFIG_IWL4965_HT
231 static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv,
232 struct ieee80211_ht_info *ht_info,
233 enum ieee80211_band band)
236 memset(ht_info->supp_mcs_set, 0, 16);
238 ht_info->ht_supported = 1;
240 if (priv->hw_params.fat_channel & BIT(band)) {
241 ht_info->cap |= (u16)IEEE80211_HT_CAP_SUP_WIDTH;
242 ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_40;
243 ht_info->supp_mcs_set[4] = 0x01;
245 ht_info->cap |= (u16)IEEE80211_HT_CAP_GRN_FLD;
246 ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_20;
247 ht_info->cap |= (u16)(IEEE80211_HT_CAP_MIMO_PS &
248 (IWL_MIMO_PS_NONE << 2));
250 if (priv->cfg->mod_params->amsdu_size_8K)
251 ht_info->cap |= (u16)IEEE80211_HT_CAP_MAX_AMSDU;
253 ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF;
254 ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF;
256 ht_info->supp_mcs_set[0] = 0xFF;
257 if (priv->hw_params.tx_chains_num >= 2)
258 ht_info->supp_mcs_set[1] = 0xFF;
259 if (priv->hw_params.tx_chains_num >= 3)
260 ht_info->supp_mcs_set[2] = 0xFF;
263 static inline void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv,
264 struct ieee80211_ht_info *ht_info,
265 enum ieee80211_band band)
268 #endif /* CONFIG_IWL4965_HT */
270 static void iwlcore_init_hw_rates(struct iwl_priv *priv,
271 struct ieee80211_rate *rates)
275 for (i = 0; i < IWL_RATE_COUNT; i++) {
276 rates[i].bitrate = iwl4965_rates[i].ieee * 5;
277 rates[i].hw_value = i; /* Rate scaling will work on indexes */
278 rates[i].hw_value_short = i;
280 if ((i > IWL_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) {
282 * If CCK != 1M then set short preamble rate flag.
285 (iwl4965_rates[i].plcp == IWL_RATE_1M_PLCP) ?
286 0 : IEEE80211_RATE_SHORT_PREAMBLE;
292 * iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom
294 static int iwlcore_init_geos(struct iwl_priv *priv)
296 struct iwl_channel_info *ch;
297 struct ieee80211_supported_band *sband;
298 struct ieee80211_channel *channels;
299 struct ieee80211_channel *geo_ch;
300 struct ieee80211_rate *rates;
303 if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
304 priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
305 IWL_DEBUG_INFO("Geography modes already initialized.\n");
306 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
310 channels = kzalloc(sizeof(struct ieee80211_channel) *
311 priv->channel_count, GFP_KERNEL);
315 rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_RATE_COUNT + 1)),
322 /* 5.2GHz channels start after the 2.4GHz channels */
323 sband = &priv->bands[IEEE80211_BAND_5GHZ];
324 sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)];
326 sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
327 sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE;
329 iwlcore_init_ht_hw_capab(priv, &sband->ht_info, IEEE80211_BAND_5GHZ);
331 sband = &priv->bands[IEEE80211_BAND_2GHZ];
332 sband->channels = channels;
334 sband->bitrates = rates;
335 sband->n_bitrates = IWL_RATE_COUNT;
337 iwlcore_init_ht_hw_capab(priv, &sband->ht_info, IEEE80211_BAND_2GHZ);
339 priv->ieee_channels = channels;
340 priv->ieee_rates = rates;
342 iwlcore_init_hw_rates(priv, rates);
344 for (i = 0; i < priv->channel_count; i++) {
345 ch = &priv->channel_info[i];
347 /* FIXME: might be removed if scan is OK */
348 if (!is_channel_valid(ch))
351 if (is_channel_a_band(ch))
352 sband = &priv->bands[IEEE80211_BAND_5GHZ];
354 sband = &priv->bands[IEEE80211_BAND_2GHZ];
356 geo_ch = &sband->channels[sband->n_channels++];
358 geo_ch->center_freq =
359 ieee80211_channel_to_frequency(ch->channel);
360 geo_ch->max_power = ch->max_power_avg;
361 geo_ch->max_antenna_gain = 0xff;
362 geo_ch->hw_value = ch->channel;
364 if (is_channel_valid(ch)) {
365 if (!(ch->flags & EEPROM_CHANNEL_IBSS))
366 geo_ch->flags |= IEEE80211_CHAN_NO_IBSS;
368 if (!(ch->flags & EEPROM_CHANNEL_ACTIVE))
369 geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
371 if (ch->flags & EEPROM_CHANNEL_RADAR)
372 geo_ch->flags |= IEEE80211_CHAN_RADAR;
374 if (ch->max_power_avg > priv->max_channel_txpower_limit)
375 priv->max_channel_txpower_limit =
378 geo_ch->flags |= IEEE80211_CHAN_DISABLED;
381 /* Save flags for reg domain usage */
382 geo_ch->orig_flags = geo_ch->flags;
384 IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n",
385 ch->channel, geo_ch->center_freq,
386 is_channel_a_band(ch) ? "5.2" : "2.4",
387 geo_ch->flags & IEEE80211_CHAN_DISABLED ?
388 "restricted" : "valid",
392 if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
393 priv->cfg->sku & IWL_SKU_A) {
394 printk(KERN_INFO DRV_NAME
395 ": Incorrectly detected BG card as ABG. Please send "
396 "your PCI ID 0x%04X:0x%04X to maintainer.\n",
397 priv->pci_dev->device, priv->pci_dev->subsystem_device);
398 priv->cfg->sku &= ~IWL_SKU_A;
401 printk(KERN_INFO DRV_NAME
402 ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
403 priv->bands[IEEE80211_BAND_2GHZ].n_channels,
404 priv->bands[IEEE80211_BAND_5GHZ].n_channels);
406 if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
407 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
408 &priv->bands[IEEE80211_BAND_2GHZ];
409 if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
410 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
411 &priv->bands[IEEE80211_BAND_5GHZ];
413 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
419 * iwlcore_free_geos - undo allocations in iwlcore_init_geos
421 void iwlcore_free_geos(struct iwl_priv *priv)
423 kfree(priv->ieee_channels);
424 kfree(priv->ieee_rates);
425 clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
427 EXPORT_SYMBOL(iwlcore_free_geos);
429 #ifdef CONFIG_IWL4965_HT
430 static u8 is_single_rx_stream(struct iwl_priv *priv)
432 return !priv->current_ht_config.is_ht ||
433 ((priv->current_ht_config.supp_mcs_set[1] == 0) &&
434 (priv->current_ht_config.supp_mcs_set[2] == 0)) ||
435 priv->ps_mode == IWL_MIMO_PS_STATIC;
438 static inline u8 is_single_rx_stream(struct iwl_priv *priv)
442 #endif /*CONFIG_IWL4965_HT */
445 * Determine how many receiver/antenna chains to use.
446 * More provides better reception via diversity. Fewer saves power.
447 * MIMO (dual stream) requires at least 2, but works better with 3.
448 * This does not determine *which* chains to use, just how many.
450 static int iwlcore_get_rx_chain_counter(struct iwl_priv *priv,
451 u8 *idle_state, u8 *rx_state)
453 u8 is_single = is_single_rx_stream(priv);
454 u8 is_cam = test_bit(STATUS_POWER_PMI, &priv->status) ? 0 : 1;
456 /* # of Rx chains to use when expecting MIMO. */
457 if (is_single || (!is_cam && (priv->ps_mode == IWL_MIMO_PS_STATIC)))
462 /* # Rx chains when idling and maybe trying to save power */
463 switch (priv->ps_mode) {
464 case IWL_MIMO_PS_STATIC:
465 case IWL_MIMO_PS_DYNAMIC:
466 *idle_state = (is_cam) ? 2 : 1;
468 case IWL_MIMO_PS_NONE:
469 *idle_state = (is_cam) ? *rx_state : 1;
480 * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
482 * Selects how many and which Rx receivers/antennas/chains to use.
483 * This should not be used for scan command ... it puts data in wrong place.
485 void iwl_set_rxon_chain(struct iwl_priv *priv)
487 u8 is_single = is_single_rx_stream(priv);
488 u8 idle_state, rx_state;
490 priv->staging_rxon.rx_chain = 0;
491 rx_state = idle_state = 3;
493 /* Tell uCode which antennas are actually connected.
494 * Before first association, we assume all antennas are connected.
495 * Just after first association, iwl_chain_noise_calibration()
496 * checks which antennas actually *are* connected. */
497 priv->staging_rxon.rx_chain |=
498 cpu_to_le16(priv->hw_params.valid_rx_ant <<
499 RXON_RX_CHAIN_VALID_POS);
501 /* How many receivers should we use? */
502 iwlcore_get_rx_chain_counter(priv, &idle_state, &rx_state);
503 priv->staging_rxon.rx_chain |=
504 cpu_to_le16(rx_state << RXON_RX_CHAIN_MIMO_CNT_POS);
505 priv->staging_rxon.rx_chain |=
506 cpu_to_le16(idle_state << RXON_RX_CHAIN_CNT_POS);
508 if (!is_single && (rx_state >= 2) &&
509 !test_bit(STATUS_POWER_PMI, &priv->status))
510 priv->staging_rxon.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;
512 priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
514 IWL_DEBUG_ASSOC("rx chain %X\n", priv->staging_rxon.rx_chain);
516 EXPORT_SYMBOL(iwl_set_rxon_chain);
519 * iwlcore_set_rxon_channel - Set the phymode and channel values in staging RXON
520 * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
521 * @channel: Any channel valid for the requested phymode
523 * In addition to setting the staging RXON, priv->phymode is also set.
525 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
526 * in the staging RXON flag structure based on the phymode
528 int iwl_set_rxon_channel(struct iwl_priv *priv,
529 enum ieee80211_band band,
532 if (!iwl_get_channel_info(priv, band, channel)) {
533 IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
538 if ((le16_to_cpu(priv->staging_rxon.channel) == channel) &&
539 (priv->band == band))
542 priv->staging_rxon.channel = cpu_to_le16(channel);
543 if (band == IEEE80211_BAND_5GHZ)
544 priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK;
546 priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
550 IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, band);
554 EXPORT_SYMBOL(iwl_set_rxon_channel);
556 static void iwlcore_init_hw(struct iwl_priv *priv)
558 struct ieee80211_hw *hw = priv->hw;
559 hw->rate_control_algorithm = "iwl-4965-rs";
561 /* Tell mac80211 and its clients (e.g. Wireless Extensions)
562 * the range of signal quality values that we'll provide.
563 * Negative values for level/noise indicate that we'll provide dBm.
564 * For WE, at least, non-0 values here *enable* display of values
565 * in app (iwconfig). */
566 hw->max_rssi = -20; /* signal level, negative indicates dBm */
567 hw->max_noise = -20; /* noise level, negative indicates dBm */
568 hw->max_signal = 100; /* link quality indication (%) */
570 /* Tell mac80211 our Tx characteristics */
571 hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE;
573 /* Default value; 4 EDCA QOS priorities */
575 #ifdef CONFIG_IWL4965_HT
576 /* Enhanced value; more queues, to support 11n aggregation */
577 hw->ampdu_queues = 12;
578 #endif /* CONFIG_IWL4965_HT */
581 static int iwlcore_init_drv(struct iwl_priv *priv)
586 priv->retry_rate = 1;
587 priv->ibss_beacon = NULL;
589 spin_lock_init(&priv->lock);
590 spin_lock_init(&priv->power_data.lock);
591 spin_lock_init(&priv->sta_lock);
592 spin_lock_init(&priv->hcmd_lock);
593 spin_lock_init(&priv->lq_mngr.lock);
595 for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++)
596 INIT_LIST_HEAD(&priv->ibss_mac_hash[i]);
598 INIT_LIST_HEAD(&priv->free_frames);
600 mutex_init(&priv->mutex);
602 /* Clear the driver's (not device's) station table */
603 iwlcore_clear_stations_table(priv);
605 priv->data_retry_limit = -1;
606 priv->ieee_channels = NULL;
607 priv->ieee_rates = NULL;
608 priv->band = IEEE80211_BAND_2GHZ;
610 priv->iw_mode = IEEE80211_IF_TYPE_STA;
612 priv->use_ant_b_for_management_frame = 1; /* start with ant B */
613 priv->ps_mode = IWL_MIMO_PS_NONE;
615 /* Choose which receivers/antennas to use */
616 iwl_set_rxon_chain(priv);
620 priv->qos_data.qos_active = 0;
621 priv->qos_data.qos_cap.val = 0;
623 iwl_set_rxon_channel(priv, IEEE80211_BAND_2GHZ, 6);
625 priv->rates_mask = IWL_RATES_MASK;
626 /* If power management is turned on, default to AC mode */
627 priv->power_mode = IWL_POWER_AC;
628 priv->user_txpower_limit = IWL_DEFAULT_TX_POWER;
630 ret = iwl_init_channel_map(priv);
632 IWL_ERROR("initializing regulatory failed: %d\n", ret);
636 ret = iwlcore_init_geos(priv);
638 IWL_ERROR("initializing geos failed: %d\n", ret);
639 goto err_free_channel_map;
642 ret = ieee80211_register_hw(priv->hw);
644 IWL_ERROR("Failed to register network device (error %d)\n",
649 priv->hw->conf.beacon_int = 100;
650 priv->mac80211_registered = 1;
655 iwlcore_free_geos(priv);
656 err_free_channel_map:
657 iwl_free_channel_map(priv);
662 int iwl_setup(struct iwl_priv *priv)
665 iwlcore_init_hw(priv);
666 ret = iwlcore_init_drv(priv);
669 EXPORT_SYMBOL(iwl_setup);
671 /* Low level driver call this function to update iwlcore with
674 int iwlcore_low_level_notify(struct iwl_priv *priv,
675 enum iwlcore_card_notify notify)
679 case IWLCORE_INIT_EVT:
680 ret = iwl_rfkill_init(priv);
682 IWL_ERROR("Unable to initialize RFKILL system. "
683 "Ignoring error: %d\n", ret);
684 iwl_power_initialize(priv);
686 case IWLCORE_START_EVT:
687 iwl_power_update_mode(priv, 1);
689 case IWLCORE_STOP_EVT:
691 case IWLCORE_REMOVE_EVT:
692 iwl_rfkill_unregister(priv);
698 EXPORT_SYMBOL(iwlcore_low_level_notify);
700 int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags)
703 struct iwl_host_cmd cmd = {
704 .id = REPLY_STATISTICS_CMD,
706 .len = sizeof(stat_flags),
707 .data = (u8 *) &stat_flags,
709 return iwl_send_cmd(priv, &cmd);
711 EXPORT_SYMBOL(iwl_send_statistics_request);
714 * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
715 * using sample data 100 bytes apart. If these sample points are good,
716 * it's a pretty good bet that everything between them is good, too.
718 static int iwlcore_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
725 IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
727 ret = iwl_grab_nic_access(priv);
731 for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
732 /* read data comes through single port, auto-incr addr */
733 /* NOTE: Use the debugless read so we don't flood kernel log
734 * if IWL_DL_IO is set */
735 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
736 i + RTC_INST_LOWER_BOUND);
737 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
738 if (val != le32_to_cpu(*image)) {
746 iwl_release_nic_access(priv);
752 * iwlcore_verify_inst_full - verify runtime uCode image in card vs. host,
753 * looking at all data.
755 static int iwl_verify_inst_full(struct iwl_priv *priv, __le32 *image,
763 IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
765 ret = iwl_grab_nic_access(priv);
769 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, RTC_INST_LOWER_BOUND);
772 for (; len > 0; len -= sizeof(u32), image++) {
773 /* read data comes through single port, auto-incr addr */
774 /* NOTE: Use the debugless read so we don't flood kernel log
775 * if IWL_DL_IO is set */
776 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
777 if (val != le32_to_cpu(*image)) {
778 IWL_ERROR("uCode INST section is invalid at "
779 "offset 0x%x, is 0x%x, s/b 0x%x\n",
780 save_len - len, val, le32_to_cpu(*image));
788 iwl_release_nic_access(priv);
792 ("ucode image in INSTRUCTION memory is good\n");
798 * iwl_verify_ucode - determine which instruction image is in SRAM,
799 * and verify its contents
801 int iwl_verify_ucode(struct iwl_priv *priv)
808 image = (__le32 *)priv->ucode_boot.v_addr;
809 len = priv->ucode_boot.len;
810 ret = iwlcore_verify_inst_sparse(priv, image, len);
812 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
817 image = (__le32 *)priv->ucode_init.v_addr;
818 len = priv->ucode_init.len;
819 ret = iwlcore_verify_inst_sparse(priv, image, len);
821 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
825 /* Try runtime/protocol */
826 image = (__le32 *)priv->ucode_code.v_addr;
827 len = priv->ucode_code.len;
828 ret = iwlcore_verify_inst_sparse(priv, image, len);
830 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
834 IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
836 /* Since nothing seems to match, show first several data entries in
837 * instruction SRAM, so maybe visual inspection will give a clue.
838 * Selection of bootstrap image (vs. other images) is arbitrary. */
839 image = (__le32 *)priv->ucode_boot.v_addr;
840 len = priv->ucode_boot.len;
841 ret = iwl_verify_inst_full(priv, image, len);
845 EXPORT_SYMBOL(iwl_verify_ucode);