1 /******************************************************************************
5 * Copyright(c) 2008 - 2009 Intel Corporation. All rights reserved.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.GPL.
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *****************************************************************************/
29 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/etherdevice.h>
32 #include <net/mac80211.h>
34 #include "iwl-eeprom.h"
35 #include "iwl-dev.h" /* FIXME: remove */
36 #include "iwl-debug.h"
39 #include "iwl-rfkill.h"
40 #include "iwl-power.h"
44 MODULE_DESCRIPTION("iwl core");
45 MODULE_VERSION(IWLWIFI_VERSION
);
46 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
47 MODULE_LICENSE("GPL");
49 #define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \
50 [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
51 IWL_RATE_SISO_##s##M_PLCP, \
52 IWL_RATE_MIMO2_##s##M_PLCP,\
53 IWL_RATE_MIMO3_##s##M_PLCP,\
54 IWL_RATE_##r##M_IEEE, \
55 IWL_RATE_##ip##M_INDEX, \
56 IWL_RATE_##in##M_INDEX, \
57 IWL_RATE_##rp##M_INDEX, \
58 IWL_RATE_##rn##M_INDEX, \
59 IWL_RATE_##pp##M_INDEX, \
60 IWL_RATE_##np##M_INDEX }
64 * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate
66 * If there isn't a valid next or previous rate then INV is used which
67 * maps to IWL_RATE_INVALID
70 const struct iwl_rate_info iwl_rates
[IWL_RATE_COUNT
] = {
71 IWL_DECLARE_RATE_INFO(1, INV
, INV
, 2, INV
, 2, INV
, 2), /* 1mbps */
72 IWL_DECLARE_RATE_INFO(2, INV
, 1, 5, 1, 5, 1, 5), /* 2mbps */
73 IWL_DECLARE_RATE_INFO(5, INV
, 2, 6, 2, 11, 2, 11), /*5.5mbps */
74 IWL_DECLARE_RATE_INFO(11, INV
, 9, 12, 9, 12, 5, 18), /* 11mbps */
75 IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */
76 IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */
77 IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */
78 IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */
79 IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */
80 IWL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */
81 IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */
82 IWL_DECLARE_RATE_INFO(54, 54, 48, INV
, 48, INV
, 48, INV
),/* 54mbps */
83 IWL_DECLARE_RATE_INFO(60, 60, 48, INV
, 48, INV
, 48, INV
),/* 60mbps */
84 /* FIXME:RS: ^^ should be INV (legacy) */
86 EXPORT_SYMBOL(iwl_rates
);
89 * translate ucode response to mac80211 tx status control values
91 void iwl_hwrate_to_tx_control(struct iwl_priv
*priv
, u32 rate_n_flags
,
92 struct ieee80211_tx_info
*info
)
95 struct ieee80211_tx_rate
*r
= &info
->control
.rates
[0];
97 info
->antenna_sel_tx
=
98 ((rate_n_flags
& RATE_MCS_ANT_ABC_MSK
) >> RATE_MCS_ANT_POS
);
99 if (rate_n_flags
& RATE_MCS_HT_MSK
)
100 r
->flags
|= IEEE80211_TX_RC_MCS
;
101 if (rate_n_flags
& RATE_MCS_GF_MSK
)
102 r
->flags
|= IEEE80211_TX_RC_GREEN_FIELD
;
103 if (rate_n_flags
& RATE_MCS_FAT_MSK
)
104 r
->flags
|= IEEE80211_TX_RC_40_MHZ_WIDTH
;
105 if (rate_n_flags
& RATE_MCS_DUP_MSK
)
106 r
->flags
|= IEEE80211_TX_RC_DUP_DATA
;
107 if (rate_n_flags
& RATE_MCS_SGI_MSK
)
108 r
->flags
|= IEEE80211_TX_RC_SHORT_GI
;
109 rate_index
= iwl_hwrate_to_plcp_idx(rate_n_flags
);
110 if (info
->band
== IEEE80211_BAND_5GHZ
)
111 rate_index
-= IWL_FIRST_OFDM_RATE
;
114 EXPORT_SYMBOL(iwl_hwrate_to_tx_control
);
116 int iwl_hwrate_to_plcp_idx(u32 rate_n_flags
)
121 if (rate_n_flags
& RATE_MCS_HT_MSK
) {
122 idx
= (rate_n_flags
& 0xff);
124 if (idx
>= IWL_RATE_MIMO3_6M_PLCP
)
125 idx
= idx
- IWL_RATE_MIMO3_6M_PLCP
;
126 else if (idx
>= IWL_RATE_MIMO2_6M_PLCP
)
127 idx
= idx
- IWL_RATE_MIMO2_6M_PLCP
;
129 idx
+= IWL_FIRST_OFDM_RATE
;
130 /* skip 9M not supported in ht*/
131 if (idx
>= IWL_RATE_9M_INDEX
)
133 if ((idx
>= IWL_FIRST_OFDM_RATE
) && (idx
<= IWL_LAST_OFDM_RATE
))
136 /* legacy rate format, search for match in table */
138 for (idx
= 0; idx
< ARRAY_SIZE(iwl_rates
); idx
++)
139 if (iwl_rates
[idx
].plcp
== (rate_n_flags
& 0xFF))
145 EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx
);
147 u8
iwl_toggle_tx_ant(struct iwl_priv
*priv
, u8 ant
)
151 for (i
= 0; i
< RATE_ANT_NUM
- 1; i
++) {
152 ind
= (ind
+ 1) < RATE_ANT_NUM
? ind
+ 1 : 0;
153 if (priv
->hw_params
.valid_tx_ant
& BIT(ind
))
159 const u8 iwl_bcast_addr
[ETH_ALEN
] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
160 EXPORT_SYMBOL(iwl_bcast_addr
);
163 /* This function both allocates and initializes hw and priv. */
164 struct ieee80211_hw
*iwl_alloc_all(struct iwl_cfg
*cfg
,
165 struct ieee80211_ops
*hw_ops
)
167 struct iwl_priv
*priv
;
169 /* mac80211 allocates memory for this device instance, including
170 * space for this driver's private structure */
171 struct ieee80211_hw
*hw
=
172 ieee80211_alloc_hw(sizeof(struct iwl_priv
), hw_ops
);
174 printk(KERN_ERR
"%s: Can not allocate network device\n",
185 EXPORT_SYMBOL(iwl_alloc_all
);
187 void iwl_hw_detect(struct iwl_priv
*priv
)
189 priv
->hw_rev
= _iwl_read32(priv
, CSR_HW_REV
);
190 priv
->hw_wa_rev
= _iwl_read32(priv
, CSR_HW_REV_WA_REG
);
191 pci_read_config_byte(priv
->pci_dev
, PCI_REVISION_ID
, &priv
->rev_id
);
193 EXPORT_SYMBOL(iwl_hw_detect
);
195 int iwl_hw_nic_init(struct iwl_priv
*priv
)
198 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
202 spin_lock_irqsave(&priv
->lock
, flags
);
203 priv
->cfg
->ops
->lib
->apm_ops
.init(priv
);
204 iwl_write32(priv
, CSR_INT_COALESCING
, 512 / 32);
205 spin_unlock_irqrestore(&priv
->lock
, flags
);
207 ret
= priv
->cfg
->ops
->lib
->apm_ops
.set_pwr_src(priv
, IWL_PWR_SRC_VMAIN
);
209 priv
->cfg
->ops
->lib
->apm_ops
.config(priv
);
211 /* Allocate the RX queue, or reset if it is already allocated */
213 ret
= iwl_rx_queue_alloc(priv
);
215 IWL_ERR(priv
, "Unable to initialize Rx queue\n");
219 iwl_rx_queue_reset(priv
, rxq
);
221 iwl_rx_replenish(priv
);
223 iwl_rx_init(priv
, rxq
);
225 spin_lock_irqsave(&priv
->lock
, flags
);
227 rxq
->need_update
= 1;
228 iwl_rx_queue_update_write_ptr(priv
, rxq
);
230 spin_unlock_irqrestore(&priv
->lock
, flags
);
232 /* Allocate and init all Tx and Command queues */
233 ret
= iwl_txq_ctx_reset(priv
);
237 set_bit(STATUS_INIT
, &priv
->status
);
241 EXPORT_SYMBOL(iwl_hw_nic_init
);
246 void iwl_activate_qos(struct iwl_priv
*priv
, u8 force
)
248 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
251 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
253 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
254 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
255 priv
->qos_data
.def_qos_parm
.qos_flags
|=
256 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
257 if (priv
->qos_data
.qos_active
)
258 priv
->qos_data
.def_qos_parm
.qos_flags
|=
259 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
261 if (priv
->current_ht_config
.is_ht
)
262 priv
->qos_data
.def_qos_parm
.qos_flags
|= QOS_PARAM_FLG_TGN_MSK
;
264 if (force
|| iwl_is_associated(priv
)) {
265 IWL_DEBUG_QOS(priv
, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
266 priv
->qos_data
.qos_active
,
267 priv
->qos_data
.def_qos_parm
.qos_flags
);
269 iwl_send_cmd_pdu_async(priv
, REPLY_QOS_PARAM
,
270 sizeof(struct iwl_qosparam_cmd
),
271 &priv
->qos_data
.def_qos_parm
, NULL
);
274 EXPORT_SYMBOL(iwl_activate_qos
);
276 void iwl_reset_qos(struct iwl_priv
*priv
)
281 bool is_legacy
= false;
285 spin_lock_irqsave(&priv
->lock
, flags
);
286 /* QoS always active in AP and ADHOC mode
287 * In STA mode wait for association
289 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
||
290 priv
->iw_mode
== NL80211_IFTYPE_AP
)
291 priv
->qos_data
.qos_active
= 1;
293 priv
->qos_data
.qos_active
= 0;
295 /* check for legacy mode */
296 if ((priv
->iw_mode
== NL80211_IFTYPE_ADHOC
&&
297 (priv
->active_rate
& IWL_OFDM_RATES_MASK
) == 0) ||
298 (priv
->iw_mode
== NL80211_IFTYPE_STATION
&&
299 (priv
->staging_rxon
.flags
& RXON_FLG_SHORT_SLOT_MSK
) == 0)) {
304 if (priv
->qos_data
.qos_active
)
307 priv
->qos_data
.def_qos_parm
.ac
[0].cw_min
= cpu_to_le16(cw_min
);
308 priv
->qos_data
.def_qos_parm
.ac
[0].cw_max
= cpu_to_le16(cw_max
);
309 priv
->qos_data
.def_qos_parm
.ac
[0].aifsn
= aifs
;
310 priv
->qos_data
.def_qos_parm
.ac
[0].edca_txop
= 0;
311 priv
->qos_data
.def_qos_parm
.ac
[0].reserved1
= 0;
313 if (priv
->qos_data
.qos_active
) {
315 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
= cpu_to_le16(cw_min
);
316 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
= cpu_to_le16(cw_max
);
317 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 7;
318 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
319 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
322 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
323 cpu_to_le16((cw_min
+ 1) / 2 - 1);
324 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
326 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
328 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
331 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
333 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
336 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
337 cpu_to_le16((cw_min
+ 1) / 4 - 1);
338 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
339 cpu_to_le16((cw_max
+ 1) / 2 - 1);
340 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
341 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
343 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
346 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
349 for (i
= 1; i
< 4; i
++) {
350 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
352 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
354 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= aifs
;
355 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
356 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
359 IWL_DEBUG_QOS(priv
, "set QoS to default \n");
361 spin_unlock_irqrestore(&priv
->lock
, flags
);
363 EXPORT_SYMBOL(iwl_reset_qos
);
365 #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
366 #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
367 static void iwlcore_init_ht_hw_capab(const struct iwl_priv
*priv
,
368 struct ieee80211_sta_ht_cap
*ht_info
,
369 enum ieee80211_band band
)
371 u16 max_bit_rate
= 0;
372 u8 rx_chains_num
= priv
->hw_params
.rx_chains_num
;
373 u8 tx_chains_num
= priv
->hw_params
.tx_chains_num
;
376 memset(&ht_info
->mcs
, 0, sizeof(ht_info
->mcs
));
378 ht_info
->ht_supported
= true;
380 ht_info
->cap
|= IEEE80211_HT_CAP_GRN_FLD
;
381 ht_info
->cap
|= IEEE80211_HT_CAP_SGI_20
;
382 ht_info
->cap
|= (IEEE80211_HT_CAP_SM_PS
&
383 (WLAN_HT_CAP_SM_PS_DISABLED
<< 2));
385 max_bit_rate
= MAX_BIT_RATE_20_MHZ
;
386 if (priv
->hw_params
.fat_channel
& BIT(band
)) {
387 ht_info
->cap
|= IEEE80211_HT_CAP_SUP_WIDTH_20_40
;
388 ht_info
->cap
|= IEEE80211_HT_CAP_SGI_40
;
389 ht_info
->mcs
.rx_mask
[4] = 0x01;
390 max_bit_rate
= MAX_BIT_RATE_40_MHZ
;
393 if (priv
->cfg
->mod_params
->amsdu_size_8K
)
394 ht_info
->cap
|= IEEE80211_HT_CAP_MAX_AMSDU
;
396 ht_info
->ampdu_factor
= CFG_HT_RX_AMPDU_FACTOR_DEF
;
397 ht_info
->ampdu_density
= CFG_HT_MPDU_DENSITY_DEF
;
399 ht_info
->mcs
.rx_mask
[0] = 0xFF;
400 if (rx_chains_num
>= 2)
401 ht_info
->mcs
.rx_mask
[1] = 0xFF;
402 if (rx_chains_num
>= 3)
403 ht_info
->mcs
.rx_mask
[2] = 0xFF;
405 /* Highest supported Rx data rate */
406 max_bit_rate
*= rx_chains_num
;
407 WARN_ON(max_bit_rate
& ~IEEE80211_HT_MCS_RX_HIGHEST_MASK
);
408 ht_info
->mcs
.rx_highest
= cpu_to_le16(max_bit_rate
);
410 /* Tx MCS capabilities */
411 ht_info
->mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
412 if (tx_chains_num
!= rx_chains_num
) {
413 ht_info
->mcs
.tx_params
|= IEEE80211_HT_MCS_TX_RX_DIFF
;
414 ht_info
->mcs
.tx_params
|= ((tx_chains_num
- 1) <<
415 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
);
419 static void iwlcore_init_hw_rates(struct iwl_priv
*priv
,
420 struct ieee80211_rate
*rates
)
424 for (i
= 0; i
< IWL_RATE_COUNT
; i
++) {
425 rates
[i
].bitrate
= iwl_rates
[i
].ieee
* 5;
426 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
427 rates
[i
].hw_value_short
= i
;
429 if ((i
> IWL_LAST_OFDM_RATE
) || (i
< IWL_FIRST_OFDM_RATE
)) {
431 * If CCK != 1M then set short preamble rate flag.
434 (iwl_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
435 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
442 * iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom
444 int iwlcore_init_geos(struct iwl_priv
*priv
)
446 struct iwl_channel_info
*ch
;
447 struct ieee80211_supported_band
*sband
;
448 struct ieee80211_channel
*channels
;
449 struct ieee80211_channel
*geo_ch
;
450 struct ieee80211_rate
*rates
;
453 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
454 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
455 IWL_DEBUG_INFO(priv
, "Geography modes already initialized.\n");
456 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
460 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
461 priv
->channel_count
, GFP_KERNEL
);
465 rates
= kzalloc((sizeof(struct ieee80211_rate
) * (IWL_RATE_COUNT
+ 1)),
472 /* 5.2GHz channels start after the 2.4GHz channels */
473 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
474 sband
->channels
= &channels
[ARRAY_SIZE(iwl_eeprom_band_1
)];
476 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
477 sband
->n_bitrates
= IWL_RATE_COUNT
- IWL_FIRST_OFDM_RATE
;
479 if (priv
->cfg
->sku
& IWL_SKU_N
)
480 iwlcore_init_ht_hw_capab(priv
, &sband
->ht_cap
,
481 IEEE80211_BAND_5GHZ
);
483 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
484 sband
->channels
= channels
;
486 sband
->bitrates
= rates
;
487 sband
->n_bitrates
= IWL_RATE_COUNT
;
489 if (priv
->cfg
->sku
& IWL_SKU_N
)
490 iwlcore_init_ht_hw_capab(priv
, &sband
->ht_cap
,
491 IEEE80211_BAND_2GHZ
);
493 priv
->ieee_channels
= channels
;
494 priv
->ieee_rates
= rates
;
496 for (i
= 0; i
< priv
->channel_count
; i
++) {
497 ch
= &priv
->channel_info
[i
];
499 /* FIXME: might be removed if scan is OK */
500 if (!is_channel_valid(ch
))
503 if (is_channel_a_band(ch
))
504 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
506 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
508 geo_ch
= &sband
->channels
[sband
->n_channels
++];
510 geo_ch
->center_freq
=
511 ieee80211_channel_to_frequency(ch
->channel
);
512 geo_ch
->max_power
= ch
->max_power_avg
;
513 geo_ch
->max_antenna_gain
= 0xff;
514 geo_ch
->hw_value
= ch
->channel
;
516 if (is_channel_valid(ch
)) {
517 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
518 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
520 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
521 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
523 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
524 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
526 geo_ch
->flags
|= ch
->fat_extension_channel
;
528 if (ch
->max_power_avg
> priv
->tx_power_channel_lmt
)
529 priv
->tx_power_channel_lmt
= ch
->max_power_avg
;
531 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
534 /* Save flags for reg domain usage */
535 geo_ch
->orig_flags
= geo_ch
->flags
;
537 IWL_DEBUG_INFO(priv
, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n",
538 ch
->channel
, geo_ch
->center_freq
,
539 is_channel_a_band(ch
) ? "5.2" : "2.4",
540 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
541 "restricted" : "valid",
545 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) &&
546 priv
->cfg
->sku
& IWL_SKU_A
) {
547 IWL_INFO(priv
, "Incorrectly detected BG card as ABG. "
548 "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
549 priv
->pci_dev
->device
,
550 priv
->pci_dev
->subsystem_device
);
551 priv
->cfg
->sku
&= ~IWL_SKU_A
;
554 IWL_INFO(priv
, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
555 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
556 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
558 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
562 EXPORT_SYMBOL(iwlcore_init_geos
);
565 * iwlcore_free_geos - undo allocations in iwlcore_init_geos
567 void iwlcore_free_geos(struct iwl_priv
*priv
)
569 kfree(priv
->ieee_channels
);
570 kfree(priv
->ieee_rates
);
571 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
573 EXPORT_SYMBOL(iwlcore_free_geos
);
575 static bool is_single_rx_stream(struct iwl_priv
*priv
)
577 return !priv
->current_ht_config
.is_ht
||
578 ((priv
->current_ht_config
.mcs
.rx_mask
[1] == 0) &&
579 (priv
->current_ht_config
.mcs
.rx_mask
[2] == 0));
582 static u8
iwl_is_channel_extension(struct iwl_priv
*priv
,
583 enum ieee80211_band band
,
584 u16 channel
, u8 extension_chan_offset
)
586 const struct iwl_channel_info
*ch_info
;
588 ch_info
= iwl_get_channel_info(priv
, band
, channel
);
589 if (!is_channel_valid(ch_info
))
592 if (extension_chan_offset
== IEEE80211_HT_PARAM_CHA_SEC_ABOVE
)
593 return !(ch_info
->fat_extension_channel
&
594 IEEE80211_CHAN_NO_FAT_ABOVE
);
595 else if (extension_chan_offset
== IEEE80211_HT_PARAM_CHA_SEC_BELOW
)
596 return !(ch_info
->fat_extension_channel
&
597 IEEE80211_CHAN_NO_FAT_BELOW
);
602 u8
iwl_is_fat_tx_allowed(struct iwl_priv
*priv
,
603 struct ieee80211_sta_ht_cap
*sta_ht_inf
)
605 struct iwl_ht_info
*iwl_ht_conf
= &priv
->current_ht_config
;
607 if ((!iwl_ht_conf
->is_ht
) ||
608 (iwl_ht_conf
->supported_chan_width
!= IWL_CHANNEL_WIDTH_40MHZ
) ||
609 (iwl_ht_conf
->extension_chan_offset
== IEEE80211_HT_PARAM_CHA_SEC_NONE
))
613 if ((!sta_ht_inf
->ht_supported
) ||
614 (!(sta_ht_inf
->cap
& IEEE80211_HT_CAP_SUP_WIDTH_20_40
)))
618 return iwl_is_channel_extension(priv
, priv
->band
,
619 le16_to_cpu(priv
->staging_rxon
.channel
),
620 iwl_ht_conf
->extension_chan_offset
);
622 EXPORT_SYMBOL(iwl_is_fat_tx_allowed
);
624 void iwl_set_rxon_hwcrypto(struct iwl_priv
*priv
, int hw_decrypt
)
626 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
629 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
631 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
634 EXPORT_SYMBOL(iwl_set_rxon_hwcrypto
);
637 * iwl_check_rxon_cmd - validate RXON structure is valid
639 * NOTE: This is really only useful during development and can eventually
640 * be #ifdef'd out once the driver is stable and folks aren't actively
643 int iwl_check_rxon_cmd(struct iwl_priv
*priv
)
647 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
649 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
650 error
|= le32_to_cpu(rxon
->flags
&
651 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
652 RXON_FLG_RADAR_DETECT_MSK
));
654 IWL_WARN(priv
, "check 24G fields %d | %d\n",
657 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
658 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
660 IWL_WARN(priv
, "check 52 fields %d | %d\n",
662 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
664 IWL_WARN(priv
, "check 52 CCK %d | %d\n",
667 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
669 IWL_WARN(priv
, "check mac addr %d | %d\n", counter
++, error
);
671 /* make sure basic rates 6Mbps and 1Mbps are supported */
672 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
673 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
675 IWL_WARN(priv
, "check basic rate %d | %d\n", counter
++, error
);
677 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
679 IWL_WARN(priv
, "check assoc id %d | %d\n", counter
++, error
);
681 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
682 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
684 IWL_WARN(priv
, "check CCK and short slot %d | %d\n",
687 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
688 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
690 IWL_WARN(priv
, "check CCK & auto detect %d | %d\n",
693 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
694 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
696 IWL_WARN(priv
, "check TGG and auto detect %d | %d\n",
700 IWL_WARN(priv
, "Tuning to channel %d\n",
701 le16_to_cpu(rxon
->channel
));
704 IWL_ERR(priv
, "Not a valid iwl_rxon_assoc_cmd field values\n");
709 EXPORT_SYMBOL(iwl_check_rxon_cmd
);
712 * iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
713 * @priv: staging_rxon is compared to active_rxon
715 * If the RXON structure is changing enough to require a new tune,
716 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
717 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
719 int iwl_full_rxon_required(struct iwl_priv
*priv
)
722 /* These items are only settable from the full RXON command */
723 if (!(iwl_is_associated(priv
)) ||
724 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
725 priv
->active_rxon
.bssid_addr
) ||
726 compare_ether_addr(priv
->staging_rxon
.node_addr
,
727 priv
->active_rxon
.node_addr
) ||
728 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
729 priv
->active_rxon
.wlap_bssid_addr
) ||
730 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
731 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
732 (priv
->staging_rxon
.air_propagation
!=
733 priv
->active_rxon
.air_propagation
) ||
734 (priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
!=
735 priv
->active_rxon
.ofdm_ht_single_stream_basic_rates
) ||
736 (priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
!=
737 priv
->active_rxon
.ofdm_ht_dual_stream_basic_rates
) ||
738 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
741 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
742 * be updated with the RXON_ASSOC command -- however only some
743 * flag transitions are allowed using RXON_ASSOC */
745 /* Check if we are not switching bands */
746 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
747 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
750 /* Check if we are switching association toggle */
751 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
752 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
757 EXPORT_SYMBOL(iwl_full_rxon_required
);
759 u8
iwl_rate_get_lowest_plcp(struct iwl_priv
*priv
)
765 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
766 rate_mask
= priv
->active_rate_basic
& IWL_CCK_RATES_MASK
;
768 rate_mask
= priv
->active_rate_basic
& IWL_OFDM_RATES_MASK
;
770 /* Find lowest valid rate */
771 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
772 i
= iwl_rates
[i
].next_ieee
) {
773 if (rate_mask
& (1 << i
))
774 return iwl_rates
[i
].plcp
;
777 /* No valid rate was found. Assign the lowest one */
778 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
779 return IWL_RATE_1M_PLCP
;
781 return IWL_RATE_6M_PLCP
;
783 EXPORT_SYMBOL(iwl_rate_get_lowest_plcp
);
785 void iwl_set_rxon_ht(struct iwl_priv
*priv
, struct iwl_ht_info
*ht_info
)
787 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
790 if (!ht_info
->is_ht
) {
791 rxon
->flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK
|
792 RXON_FLG_CHANNEL_MODE_PURE_40_MSK
|
793 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
|
794 RXON_FLG_FAT_PROT_MSK
|
795 RXON_FLG_HT_PROT_MSK
);
799 /* Set up channel bandwidth: 20 MHz only, or 20/40 mixed if fat ok */
800 if (iwl_is_fat_tx_allowed(priv
, NULL
))
801 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_MIXED_MSK
;
803 rxon
->flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK
|
804 RXON_FLG_CHANNEL_MODE_PURE_40_MSK
);
806 /* Note: control channel is opposite of extension channel */
807 switch (ht_info
->extension_chan_offset
) {
808 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE
:
809 rxon
->flags
&= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
);
811 case IEEE80211_HT_PARAM_CHA_SEC_BELOW
:
812 rxon
->flags
|= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
;
814 case IEEE80211_HT_PARAM_CHA_SEC_NONE
:
816 rxon
->flags
&= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK
;
820 val
= ht_info
->ht_protection
;
822 rxon
->flags
|= cpu_to_le32(val
<< RXON_FLG_HT_OPERATING_MODE_POS
);
824 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
825 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
827 IWL_DEBUG_ASSOC(priv
, "supported HT rate 0x%X 0x%X 0x%X "
828 "rxon flags 0x%X operation mode :0x%X "
829 "extension channel offset 0x%x\n",
830 ht_info
->mcs
.rx_mask
[0],
831 ht_info
->mcs
.rx_mask
[1],
832 ht_info
->mcs
.rx_mask
[2],
833 le32_to_cpu(rxon
->flags
), ht_info
->ht_protection
,
834 ht_info
->extension_chan_offset
);
837 EXPORT_SYMBOL(iwl_set_rxon_ht
);
839 #define IWL_NUM_RX_CHAINS_MULTIPLE 3
840 #define IWL_NUM_RX_CHAINS_SINGLE 2
841 #define IWL_NUM_IDLE_CHAINS_DUAL 2
842 #define IWL_NUM_IDLE_CHAINS_SINGLE 1
844 /* Determine how many receiver/antenna chains to use.
845 * More provides better reception via diversity. Fewer saves power.
846 * MIMO (dual stream) requires at least 2, but works better with 3.
847 * This does not determine *which* chains to use, just how many.
849 static int iwl_get_active_rx_chain_count(struct iwl_priv
*priv
)
851 bool is_single
= is_single_rx_stream(priv
);
852 bool is_cam
= !test_bit(STATUS_POWER_PMI
, &priv
->status
);
854 /* # of Rx chains to use when expecting MIMO. */
855 if (is_single
|| (!is_cam
&& (priv
->current_ht_config
.sm_ps
==
856 WLAN_HT_CAP_SM_PS_STATIC
)))
857 return IWL_NUM_RX_CHAINS_SINGLE
;
859 return IWL_NUM_RX_CHAINS_MULTIPLE
;
862 static int iwl_get_idle_rx_chain_count(struct iwl_priv
*priv
, int active_cnt
)
865 bool is_cam
= !test_bit(STATUS_POWER_PMI
, &priv
->status
);
866 /* # Rx chains when idling and maybe trying to save power */
867 switch (priv
->current_ht_config
.sm_ps
) {
868 case WLAN_HT_CAP_SM_PS_STATIC
:
869 case WLAN_HT_CAP_SM_PS_DYNAMIC
:
870 idle_cnt
= (is_cam
) ? IWL_NUM_IDLE_CHAINS_DUAL
:
871 IWL_NUM_IDLE_CHAINS_SINGLE
;
873 case WLAN_HT_CAP_SM_PS_DISABLED
:
874 idle_cnt
= (is_cam
) ? active_cnt
: IWL_NUM_IDLE_CHAINS_SINGLE
;
876 case WLAN_HT_CAP_SM_PS_INVALID
:
878 IWL_ERR(priv
, "invalid mimo ps mode %d\n",
879 priv
->current_ht_config
.sm_ps
);
888 static u8
iwl_count_chain_bitmap(u32 chain_bitmap
)
891 res
= (chain_bitmap
& BIT(0)) >> 0;
892 res
+= (chain_bitmap
& BIT(1)) >> 1;
893 res
+= (chain_bitmap
& BIT(2)) >> 2;
894 res
+= (chain_bitmap
& BIT(4)) >> 4;
899 * iwl_is_monitor_mode - Determine if interface in monitor mode
901 * priv->iw_mode is set in add_interface, but add_interface is
902 * never called for monitor mode. The only way mac80211 informs us about
903 * monitor mode is through configuring filters (call to configure_filter).
905 static bool iwl_is_monitor_mode(struct iwl_priv
*priv
)
907 return !!(priv
->staging_rxon
.filter_flags
& RXON_FILTER_PROMISC_MSK
);
911 * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
913 * Selects how many and which Rx receivers/antennas/chains to use.
914 * This should not be used for scan command ... it puts data in wrong place.
916 void iwl_set_rxon_chain(struct iwl_priv
*priv
)
918 bool is_single
= is_single_rx_stream(priv
);
919 bool is_cam
= !test_bit(STATUS_POWER_PMI
, &priv
->status
);
920 u8 idle_rx_cnt
, active_rx_cnt
, valid_rx_cnt
;
924 /* Tell uCode which antennas are actually connected.
925 * Before first association, we assume all antennas are connected.
926 * Just after first association, iwl_chain_noise_calibration()
927 * checks which antennas actually *are* connected. */
928 if (priv
->chain_noise_data
.active_chains
)
929 active_chains
= priv
->chain_noise_data
.active_chains
;
931 active_chains
= priv
->hw_params
.valid_rx_ant
;
933 rx_chain
= active_chains
<< RXON_RX_CHAIN_VALID_POS
;
935 /* How many receivers should we use? */
936 active_rx_cnt
= iwl_get_active_rx_chain_count(priv
);
937 idle_rx_cnt
= iwl_get_idle_rx_chain_count(priv
, active_rx_cnt
);
940 /* correct rx chain count according hw settings
941 * and chain noise calibration
943 valid_rx_cnt
= iwl_count_chain_bitmap(active_chains
);
944 if (valid_rx_cnt
< active_rx_cnt
)
945 active_rx_cnt
= valid_rx_cnt
;
947 if (valid_rx_cnt
< idle_rx_cnt
)
948 idle_rx_cnt
= valid_rx_cnt
;
950 rx_chain
|= active_rx_cnt
<< RXON_RX_CHAIN_MIMO_CNT_POS
;
951 rx_chain
|= idle_rx_cnt
<< RXON_RX_CHAIN_CNT_POS
;
953 /* copied from 'iwl_bg_request_scan()' */
954 /* Force use of chains B and C (0x6) for Rx for 4965
955 * Avoid A (0x1) because of its off-channel reception on A-band.
956 * MIMO is not used here, but value is required */
957 if (iwl_is_monitor_mode(priv
) &&
958 !(priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) &&
959 ((priv
->hw_rev
& CSR_HW_REV_TYPE_MSK
) == CSR_HW_REV_TYPE_4965
)) {
960 rx_chain
= 0x07 << RXON_RX_CHAIN_VALID_POS
;
961 rx_chain
|= 0x06 << RXON_RX_CHAIN_FORCE_SEL_POS
;
962 rx_chain
|= 0x07 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS
;
963 rx_chain
|= 0x01 << RXON_RX_CHAIN_DRIVER_FORCE_POS
;
966 priv
->staging_rxon
.rx_chain
= cpu_to_le16(rx_chain
);
968 if (!is_single
&& (active_rx_cnt
>= IWL_NUM_RX_CHAINS_SINGLE
) && is_cam
)
969 priv
->staging_rxon
.rx_chain
|= RXON_RX_CHAIN_MIMO_FORCE_MSK
;
971 priv
->staging_rxon
.rx_chain
&= ~RXON_RX_CHAIN_MIMO_FORCE_MSK
;
973 IWL_DEBUG_ASSOC(priv
, "rx_chain=0x%X active=%d idle=%d\n",
974 priv
->staging_rxon
.rx_chain
,
975 active_rx_cnt
, idle_rx_cnt
);
977 WARN_ON(active_rx_cnt
== 0 || idle_rx_cnt
== 0 ||
978 active_rx_cnt
< idle_rx_cnt
);
980 EXPORT_SYMBOL(iwl_set_rxon_chain
);
983 * iwl_set_rxon_channel - Set the phymode and channel values in staging RXON
984 * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
985 * @channel: Any channel valid for the requested phymode
987 * In addition to setting the staging RXON, priv->phymode is also set.
989 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
990 * in the staging RXON flag structure based on the phymode
992 int iwl_set_rxon_channel(struct iwl_priv
*priv
, struct ieee80211_channel
*ch
)
994 enum ieee80211_band band
= ch
->band
;
995 u16 channel
= ieee80211_frequency_to_channel(ch
->center_freq
);
997 if (!iwl_get_channel_info(priv
, band
, channel
)) {
998 IWL_DEBUG_INFO(priv
, "Could not set channel to %d [%d]\n",
1003 if ((le16_to_cpu(priv
->staging_rxon
.channel
) == channel
) &&
1004 (priv
->band
== band
))
1007 priv
->staging_rxon
.channel
= cpu_to_le16(channel
);
1008 if (band
== IEEE80211_BAND_5GHZ
)
1009 priv
->staging_rxon
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
1011 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
1015 IWL_DEBUG_INFO(priv
, "Staging channel set to %d [%d]\n", channel
, band
);
1019 EXPORT_SYMBOL(iwl_set_rxon_channel
);
1021 void iwl_set_flags_for_band(struct iwl_priv
*priv
,
1022 enum ieee80211_band band
)
1024 if (band
== IEEE80211_BAND_5GHZ
) {
1025 priv
->staging_rxon
.flags
&=
1026 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
1027 | RXON_FLG_CCK_MSK
);
1028 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1030 /* Copied from iwl_post_associate() */
1031 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
1032 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1034 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1036 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
1037 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1039 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
1040 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
1041 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
1044 EXPORT_SYMBOL(iwl_set_flags_for_band
);
1047 * initialize rxon structure with default values from eeprom
1049 void iwl_connection_init_rx_config(struct iwl_priv
*priv
, int mode
)
1051 const struct iwl_channel_info
*ch_info
;
1053 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
1056 case NL80211_IFTYPE_AP
:
1057 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
1060 case NL80211_IFTYPE_STATION
:
1061 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
1062 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
1065 case NL80211_IFTYPE_ADHOC
:
1066 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
1067 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
1068 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
1069 RXON_FILTER_ACCEPT_GRP_MSK
;
1072 case NL80211_IFTYPE_MONITOR
:
1073 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
1074 priv
->staging_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
1075 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
1078 IWL_ERR(priv
, "Unsupported interface type %d\n", mode
);
1083 /* TODO: Figure out when short_preamble would be set and cache from
1085 if (!hw_to_local(priv
->hw
)->short_preamble
)
1086 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
1088 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
1091 ch_info
= iwl_get_channel_info(priv
, priv
->band
,
1092 le16_to_cpu(priv
->active_rxon
.channel
));
1095 ch_info
= &priv
->channel_info
[0];
1098 * in some case A channels are all non IBSS
1099 * in this case force B/G channel
1101 if ((priv
->iw_mode
== NL80211_IFTYPE_ADHOC
) &&
1102 !(is_channel_ibss(ch_info
)))
1103 ch_info
= &priv
->channel_info
[0];
1105 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
1106 priv
->band
= ch_info
->band
;
1108 iwl_set_flags_for_band(priv
, priv
->band
);
1110 priv
->staging_rxon
.ofdm_basic_rates
=
1111 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
1112 priv
->staging_rxon
.cck_basic_rates
=
1113 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
1115 priv
->staging_rxon
.flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK
|
1116 RXON_FLG_CHANNEL_MODE_PURE_40_MSK
);
1117 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
1118 memcpy(priv
->staging_rxon
.wlap_bssid_addr
, priv
->mac_addr
, ETH_ALEN
);
1119 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
= 0xff;
1120 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
= 0xff;
1121 priv
->staging_rxon
.ofdm_ht_triple_stream_basic_rates
= 0xff;
1123 EXPORT_SYMBOL(iwl_connection_init_rx_config
);
1125 void iwl_set_rate(struct iwl_priv
*priv
)
1127 const struct ieee80211_supported_band
*hw
= NULL
;
1128 struct ieee80211_rate
*rate
;
1131 hw
= iwl_get_hw_mode(priv
, priv
->band
);
1133 IWL_ERR(priv
, "Failed to set rate: unable to get hw mode\n");
1137 priv
->active_rate
= 0;
1138 priv
->active_rate_basic
= 0;
1140 for (i
= 0; i
< hw
->n_bitrates
; i
++) {
1141 rate
= &(hw
->bitrates
[i
]);
1142 if (rate
->hw_value
< IWL_RATE_COUNT
)
1143 priv
->active_rate
|= (1 << rate
->hw_value
);
1146 IWL_DEBUG_RATE(priv
, "Set active_rate = %0x, active_rate_basic = %0x\n",
1147 priv
->active_rate
, priv
->active_rate_basic
);
1150 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
1151 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
1154 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
1155 priv
->staging_rxon
.cck_basic_rates
=
1156 ((priv
->active_rate_basic
&
1157 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
1159 priv
->staging_rxon
.cck_basic_rates
=
1160 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
1162 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
1163 priv
->staging_rxon
.ofdm_basic_rates
=
1164 ((priv
->active_rate_basic
&
1165 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
1166 IWL_FIRST_OFDM_RATE
) & 0xFF;
1168 priv
->staging_rxon
.ofdm_basic_rates
=
1169 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
1171 EXPORT_SYMBOL(iwl_set_rate
);
1173 void iwl_rx_csa(struct iwl_priv
*priv
, struct iwl_rx_mem_buffer
*rxb
)
1175 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1176 struct iwl_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
1177 struct iwl_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
1178 IWL_DEBUG_11H(priv
, "CSA notif: channel %d, status %d\n",
1179 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
1180 rxon
->channel
= csa
->channel
;
1181 priv
->staging_rxon
.channel
= csa
->channel
;
1183 EXPORT_SYMBOL(iwl_rx_csa
);
1185 #ifdef CONFIG_IWLWIFI_DEBUG
1186 static void iwl_print_rx_config_cmd(struct iwl_priv
*priv
)
1188 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
1190 IWL_DEBUG_RADIO(priv
, "RX CONFIG:\n");
1191 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
1192 IWL_DEBUG_RADIO(priv
, "u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
1193 IWL_DEBUG_RADIO(priv
, "u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
1194 IWL_DEBUG_RADIO(priv
, "u32 filter_flags: 0x%08x\n",
1195 le32_to_cpu(rxon
->filter_flags
));
1196 IWL_DEBUG_RADIO(priv
, "u8 dev_type: 0x%x\n", rxon
->dev_type
);
1197 IWL_DEBUG_RADIO(priv
, "u8 ofdm_basic_rates: 0x%02x\n",
1198 rxon
->ofdm_basic_rates
);
1199 IWL_DEBUG_RADIO(priv
, "u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
1200 IWL_DEBUG_RADIO(priv
, "u8[6] node_addr: %pM\n", rxon
->node_addr
);
1201 IWL_DEBUG_RADIO(priv
, "u8[6] bssid_addr: %pM\n", rxon
->bssid_addr
);
1202 IWL_DEBUG_RADIO(priv
, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
1207 * iwl_irq_handle_error - called for HW or SW error interrupt from card
1209 void iwl_irq_handle_error(struct iwl_priv
*priv
)
1211 /* Set the FW error flag -- cleared on iwl_down */
1212 set_bit(STATUS_FW_ERROR
, &priv
->status
);
1214 /* Cancel currently queued command. */
1215 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
1217 #ifdef CONFIG_IWLWIFI_DEBUG
1218 if (priv
->debug_level
& IWL_DL_FW_ERRORS
) {
1219 iwl_dump_nic_error_log(priv
);
1220 iwl_dump_nic_event_log(priv
);
1221 iwl_print_rx_config_cmd(priv
);
1225 wake_up_interruptible(&priv
->wait_command_queue
);
1227 /* Keep the restart process from trying to send host
1228 * commands by clearing the INIT status bit */
1229 clear_bit(STATUS_READY
, &priv
->status
);
1231 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
1232 IWL_DEBUG(priv
, IWL_DL_FW_ERRORS
,
1233 "Restarting adapter due to uCode error.\n");
1235 if (iwl_is_associated(priv
)) {
1236 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
1237 sizeof(priv
->recovery_rxon
));
1238 priv
->error_recovering
= 1;
1240 if (priv
->cfg
->mod_params
->restart_fw
)
1241 queue_work(priv
->workqueue
, &priv
->restart
);
1244 EXPORT_SYMBOL(iwl_irq_handle_error
);
1246 void iwl_configure_filter(struct ieee80211_hw
*hw
,
1247 unsigned int changed_flags
,
1248 unsigned int *total_flags
,
1249 int mc_count
, struct dev_addr_list
*mc_list
)
1251 struct iwl_priv
*priv
= hw
->priv
;
1252 __le32
*filter_flags
= &priv
->staging_rxon
.filter_flags
;
1254 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
1255 changed_flags
, *total_flags
);
1257 if (changed_flags
& (FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
)) {
1258 if (*total_flags
& (FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
))
1259 *filter_flags
|= RXON_FILTER_PROMISC_MSK
;
1261 *filter_flags
&= ~RXON_FILTER_PROMISC_MSK
;
1263 if (changed_flags
& FIF_ALLMULTI
) {
1264 if (*total_flags
& FIF_ALLMULTI
)
1265 *filter_flags
|= RXON_FILTER_ACCEPT_GRP_MSK
;
1267 *filter_flags
&= ~RXON_FILTER_ACCEPT_GRP_MSK
;
1269 if (changed_flags
& FIF_CONTROL
) {
1270 if (*total_flags
& FIF_CONTROL
)
1271 *filter_flags
|= RXON_FILTER_CTL2HOST_MSK
;
1273 *filter_flags
&= ~RXON_FILTER_CTL2HOST_MSK
;
1275 if (changed_flags
& FIF_BCN_PRBRESP_PROMISC
) {
1276 if (*total_flags
& FIF_BCN_PRBRESP_PROMISC
)
1277 *filter_flags
|= RXON_FILTER_BCON_AWARE_MSK
;
1279 *filter_flags
&= ~RXON_FILTER_BCON_AWARE_MSK
;
1282 /* We avoid iwl_commit_rxon here to commit the new filter flags
1283 * since mac80211 will call ieee80211_hw_config immediately.
1284 * (mc_list is not supported at this time). Otherwise, we need to
1285 * queue a background iwl_commit_rxon work.
1288 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
1289 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
1291 EXPORT_SYMBOL(iwl_configure_filter
);
1293 int iwl_setup_mac(struct iwl_priv
*priv
)
1296 struct ieee80211_hw
*hw
= priv
->hw
;
1297 hw
->rate_control_algorithm
= "iwl-agn-rs";
1299 /* Tell mac80211 our characteristics */
1300 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
1301 IEEE80211_HW_NOISE_DBM
|
1302 IEEE80211_HW_AMPDU_AGGREGATION
|
1303 IEEE80211_HW_SPECTRUM_MGMT
|
1304 IEEE80211_HW_SUPPORTS_PS
;
1305 hw
->wiphy
->interface_modes
=
1306 BIT(NL80211_IFTYPE_STATION
) |
1307 BIT(NL80211_IFTYPE_ADHOC
);
1309 hw
->wiphy
->custom_regulatory
= true;
1310 hw
->wiphy
->max_scan_ssids
= 1;
1311 hw
->wiphy
->max_scan_ie_len
= 0; /* XXX for now */
1313 /* Default value; 4 EDCA QOS priorities */
1316 hw
->conf
.beacon_int
= 100;
1317 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
1319 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
1320 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
1321 &priv
->bands
[IEEE80211_BAND_2GHZ
];
1322 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
1323 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
1324 &priv
->bands
[IEEE80211_BAND_5GHZ
];
1326 ret
= ieee80211_register_hw(priv
->hw
);
1328 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
1331 priv
->mac80211_registered
= 1;
1335 EXPORT_SYMBOL(iwl_setup_mac
);
1337 int iwl_set_hw_params(struct iwl_priv
*priv
)
1339 priv
->hw_params
.sw_crypto
= priv
->cfg
->mod_params
->sw_crypto
;
1340 priv
->hw_params
.max_rxq_size
= RX_QUEUE_SIZE
;
1341 priv
->hw_params
.max_rxq_log
= RX_QUEUE_SIZE_LOG
;
1342 if (priv
->cfg
->mod_params
->amsdu_size_8K
)
1343 priv
->hw_params
.rx_buf_size
= IWL_RX_BUF_SIZE_8K
;
1345 priv
->hw_params
.rx_buf_size
= IWL_RX_BUF_SIZE_4K
;
1346 priv
->hw_params
.max_pkt_size
= priv
->hw_params
.rx_buf_size
- 256;
1348 if (priv
->cfg
->mod_params
->disable_11n
)
1349 priv
->cfg
->sku
&= ~IWL_SKU_N
;
1351 /* Device-specific setup */
1352 return priv
->cfg
->ops
->lib
->set_hw_params(priv
);
1354 EXPORT_SYMBOL(iwl_set_hw_params
);
1356 int iwl_init_drv(struct iwl_priv
*priv
)
1360 priv
->ibss_beacon
= NULL
;
1362 spin_lock_init(&priv
->lock
);
1363 spin_lock_init(&priv
->power_data
.lock
);
1364 spin_lock_init(&priv
->sta_lock
);
1365 spin_lock_init(&priv
->hcmd_lock
);
1367 INIT_LIST_HEAD(&priv
->free_frames
);
1369 mutex_init(&priv
->mutex
);
1371 /* Clear the driver's (not device's) station table */
1372 priv
->cfg
->ops
->smgmt
->clear_station_table(priv
);
1374 priv
->data_retry_limit
= -1;
1375 priv
->ieee_channels
= NULL
;
1376 priv
->ieee_rates
= NULL
;
1377 priv
->band
= IEEE80211_BAND_2GHZ
;
1379 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
1381 priv
->current_ht_config
.sm_ps
= WLAN_HT_CAP_SM_PS_DISABLED
;
1383 /* Choose which receivers/antennas to use */
1384 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
1385 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
1387 iwl_init_scan_params(priv
);
1389 iwl_reset_qos(priv
);
1391 priv
->qos_data
.qos_active
= 0;
1392 priv
->qos_data
.qos_cap
.val
= 0;
1394 priv
->rates_mask
= IWL_RATES_MASK
;
1395 /* If power management is turned on, default to CAM mode */
1396 priv
->power_mode
= IWL_POWER_MODE_CAM
;
1397 priv
->tx_power_user_lmt
= IWL_TX_POWER_TARGET_POWER_MAX
;
1399 ret
= iwl_init_channel_map(priv
);
1401 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
1405 ret
= iwlcore_init_geos(priv
);
1407 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
1408 goto err_free_channel_map
;
1410 iwlcore_init_hw_rates(priv
, priv
->ieee_rates
);
1414 err_free_channel_map
:
1415 iwl_free_channel_map(priv
);
1419 EXPORT_SYMBOL(iwl_init_drv
);
1421 int iwl_set_tx_power(struct iwl_priv
*priv
, s8 tx_power
, bool force
)
1424 if (tx_power
< IWL_TX_POWER_TARGET_POWER_MIN
) {
1425 IWL_WARN(priv
, "Requested user TXPOWER %d below lower limit %d.\n",
1427 IWL_TX_POWER_TARGET_POWER_MIN
);
1431 if (tx_power
> IWL_TX_POWER_TARGET_POWER_MAX
) {
1432 IWL_WARN(priv
, "Requested user TXPOWER %d above upper limit %d.\n",
1434 IWL_TX_POWER_TARGET_POWER_MAX
);
1438 if (priv
->tx_power_user_lmt
!= tx_power
)
1441 priv
->tx_power_user_lmt
= tx_power
;
1443 /* if nic is not up don't send command */
1444 if (!iwl_is_ready_rf(priv
))
1447 if (force
&& priv
->cfg
->ops
->lib
->send_tx_power
)
1448 ret
= priv
->cfg
->ops
->lib
->send_tx_power(priv
);
1452 EXPORT_SYMBOL(iwl_set_tx_power
);
1454 void iwl_uninit_drv(struct iwl_priv
*priv
)
1456 iwl_calib_free_results(priv
);
1457 iwlcore_free_geos(priv
);
1458 iwl_free_channel_map(priv
);
1461 EXPORT_SYMBOL(iwl_uninit_drv
);
1464 void iwl_disable_interrupts(struct iwl_priv
*priv
)
1466 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
1468 /* disable interrupts from uCode/NIC to host */
1469 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
1471 /* acknowledge/clear/reset any interrupts still pending
1472 * from uCode or flow handler (Rx/Tx DMA) */
1473 iwl_write32(priv
, CSR_INT
, 0xffffffff);
1474 iwl_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
1475 IWL_DEBUG_ISR(priv
, "Disabled interrupts\n");
1477 EXPORT_SYMBOL(iwl_disable_interrupts
);
1479 void iwl_enable_interrupts(struct iwl_priv
*priv
)
1481 IWL_DEBUG_ISR(priv
, "Enabling interrupts\n");
1482 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
1483 iwl_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
1485 EXPORT_SYMBOL(iwl_enable_interrupts
);
1487 irqreturn_t
iwl_isr(int irq
, void *data
)
1489 struct iwl_priv
*priv
= data
;
1490 u32 inta
, inta_mask
;
1495 spin_lock(&priv
->lock
);
1497 /* Disable (but don't clear!) interrupts here to avoid
1498 * back-to-back ISRs and sporadic interrupts from our NIC.
1499 * If we have something to service, the tasklet will re-enable ints.
1500 * If we *don't* have something, we'll re-enable before leaving here. */
1501 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
1502 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
1504 /* Discover which interrupts are active/pending */
1505 inta
= iwl_read32(priv
, CSR_INT
);
1506 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1508 /* Ignore interrupt if there's nothing in NIC to service.
1509 * This may be due to IRQ shared with another device,
1510 * or due to sporadic interrupts thrown from our NIC. */
1511 if (!inta
&& !inta_fh
) {
1512 IWL_DEBUG_ISR(priv
, "Ignore interrupt, inta == 0, inta_fh == 0\n");
1516 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
1517 /* Hardware disappeared. It might have already raised
1519 IWL_WARN(priv
, "HARDWARE GONE?? INTA == 0x%08x\n", inta
);
1523 IWL_DEBUG_ISR(priv
, "ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1524 inta
, inta_mask
, inta_fh
);
1526 inta
&= ~CSR_INT_BIT_SCD
;
1528 /* iwl_irq_tasklet() will service interrupts and re-enable them */
1529 if (likely(inta
|| inta_fh
))
1530 tasklet_schedule(&priv
->irq_tasklet
);
1533 spin_unlock(&priv
->lock
);
1537 /* re-enable interrupts here since we don't have anything to service. */
1538 /* only Re-enable if diabled by irq */
1539 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
1540 iwl_enable_interrupts(priv
);
1541 spin_unlock(&priv
->lock
);
1544 EXPORT_SYMBOL(iwl_isr
);
1546 int iwl_send_bt_config(struct iwl_priv
*priv
)
1548 struct iwl_bt_cmd bt_cmd
= {
1556 return iwl_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
1557 sizeof(struct iwl_bt_cmd
), &bt_cmd
);
1559 EXPORT_SYMBOL(iwl_send_bt_config
);
1561 int iwl_send_statistics_request(struct iwl_priv
*priv
, u8 flags
)
1564 struct iwl_host_cmd cmd
= {
1565 .id
= REPLY_STATISTICS_CMD
,
1566 .meta
.flags
= flags
,
1567 .len
= sizeof(stat_flags
),
1568 .data
= (u8
*) &stat_flags
,
1570 return iwl_send_cmd(priv
, &cmd
);
1572 EXPORT_SYMBOL(iwl_send_statistics_request
);
1575 * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
1576 * using sample data 100 bytes apart. If these sample points are good,
1577 * it's a pretty good bet that everything between them is good, too.
1579 static int iwlcore_verify_inst_sparse(struct iwl_priv
*priv
, __le32
*image
, u32 len
)
1586 IWL_DEBUG_INFO(priv
, "ucode inst image size is %u\n", len
);
1588 ret
= iwl_grab_nic_access(priv
);
1592 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
1593 /* read data comes through single port, auto-incr addr */
1594 /* NOTE: Use the debugless read so we don't flood kernel log
1595 * if IWL_DL_IO is set */
1596 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
1597 i
+ IWL49_RTC_INST_LOWER_BOUND
);
1598 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
1599 if (val
!= le32_to_cpu(*image
)) {
1607 iwl_release_nic_access(priv
);
1613 * iwlcore_verify_inst_full - verify runtime uCode image in card vs. host,
1614 * looking at all data.
1616 static int iwl_verify_inst_full(struct iwl_priv
*priv
, __le32
*image
,
1624 IWL_DEBUG_INFO(priv
, "ucode inst image size is %u\n", len
);
1626 ret
= iwl_grab_nic_access(priv
);
1630 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
1631 IWL49_RTC_INST_LOWER_BOUND
);
1634 for (; len
> 0; len
-= sizeof(u32
), image
++) {
1635 /* read data comes through single port, auto-incr addr */
1636 /* NOTE: Use the debugless read so we don't flood kernel log
1637 * if IWL_DL_IO is set */
1638 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
1639 if (val
!= le32_to_cpu(*image
)) {
1640 IWL_ERR(priv
, "uCode INST section is invalid at "
1641 "offset 0x%x, is 0x%x, s/b 0x%x\n",
1642 save_len
- len
, val
, le32_to_cpu(*image
));
1650 iwl_release_nic_access(priv
);
1653 IWL_DEBUG_INFO(priv
,
1654 "ucode image in INSTRUCTION memory is good\n");
1660 * iwl_verify_ucode - determine which instruction image is in SRAM,
1661 * and verify its contents
1663 int iwl_verify_ucode(struct iwl_priv
*priv
)
1670 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
1671 len
= priv
->ucode_boot
.len
;
1672 ret
= iwlcore_verify_inst_sparse(priv
, image
, len
);
1674 IWL_DEBUG_INFO(priv
, "Bootstrap uCode is good in inst SRAM\n");
1678 /* Try initialize */
1679 image
= (__le32
*)priv
->ucode_init
.v_addr
;
1680 len
= priv
->ucode_init
.len
;
1681 ret
= iwlcore_verify_inst_sparse(priv
, image
, len
);
1683 IWL_DEBUG_INFO(priv
, "Initialize uCode is good in inst SRAM\n");
1687 /* Try runtime/protocol */
1688 image
= (__le32
*)priv
->ucode_code
.v_addr
;
1689 len
= priv
->ucode_code
.len
;
1690 ret
= iwlcore_verify_inst_sparse(priv
, image
, len
);
1692 IWL_DEBUG_INFO(priv
, "Runtime uCode is good in inst SRAM\n");
1696 IWL_ERR(priv
, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
1698 /* Since nothing seems to match, show first several data entries in
1699 * instruction SRAM, so maybe visual inspection will give a clue.
1700 * Selection of bootstrap image (vs. other images) is arbitrary. */
1701 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
1702 len
= priv
->ucode_boot
.len
;
1703 ret
= iwl_verify_inst_full(priv
, image
, len
);
1707 EXPORT_SYMBOL(iwl_verify_ucode
);
1710 static const char *desc_lookup_text
[] = {
1715 "NMI_INTERRUPT_WDG",
1719 "HW_ERROR_TUNE_LOCK",
1720 "HW_ERROR_TEMPERATURE",
1721 "ILLEGAL_CHAN_FREQ",
1724 "NMI_INTERRUPT_HOST",
1725 "NMI_INTERRUPT_ACTION_PT",
1726 "NMI_INTERRUPT_UNKNOWN",
1727 "UCODE_VERSION_MISMATCH",
1728 "HW_ERROR_ABS_LOCK",
1729 "HW_ERROR_CAL_LOCK_FAIL",
1730 "NMI_INTERRUPT_INST_ACTION_PT",
1731 "NMI_INTERRUPT_DATA_ACTION_PT",
1733 "NMI_INTERRUPT_TRM",
1734 "NMI_INTERRUPT_BREAK_POINT"
1742 static const char *desc_lookup(int i
)
1744 int max
= ARRAY_SIZE(desc_lookup_text
) - 1;
1746 if (i
< 0 || i
> max
)
1749 return desc_lookup_text
[i
];
1752 #define ERROR_START_OFFSET (1 * sizeof(u32))
1753 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1755 void iwl_dump_nic_error_log(struct iwl_priv
*priv
)
1758 u32 desc
, time
, count
, base
, data1
;
1759 u32 blink1
, blink2
, ilink1
, ilink2
;
1762 if (priv
->ucode_type
== UCODE_INIT
)
1763 base
= le32_to_cpu(priv
->card_alive_init
.error_event_table_ptr
);
1765 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
1767 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
1768 IWL_ERR(priv
, "Not valid error log pointer 0x%08X\n", base
);
1772 ret
= iwl_grab_nic_access(priv
);
1774 IWL_WARN(priv
, "Can not read from adapter at this time.\n");
1778 count
= iwl_read_targ_mem(priv
, base
);
1780 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
1781 IWL_ERR(priv
, "Start IWL Error Log Dump:\n");
1782 IWL_ERR(priv
, "Status: 0x%08lX, count: %d\n",
1783 priv
->status
, count
);
1786 desc
= iwl_read_targ_mem(priv
, base
+ 1 * sizeof(u32
));
1787 blink1
= iwl_read_targ_mem(priv
, base
+ 3 * sizeof(u32
));
1788 blink2
= iwl_read_targ_mem(priv
, base
+ 4 * sizeof(u32
));
1789 ilink1
= iwl_read_targ_mem(priv
, base
+ 5 * sizeof(u32
));
1790 ilink2
= iwl_read_targ_mem(priv
, base
+ 6 * sizeof(u32
));
1791 data1
= iwl_read_targ_mem(priv
, base
+ 7 * sizeof(u32
));
1792 data2
= iwl_read_targ_mem(priv
, base
+ 8 * sizeof(u32
));
1793 line
= iwl_read_targ_mem(priv
, base
+ 9 * sizeof(u32
));
1794 time
= iwl_read_targ_mem(priv
, base
+ 11 * sizeof(u32
));
1796 IWL_ERR(priv
, "Desc Time "
1797 "data1 data2 line\n");
1798 IWL_ERR(priv
, "%-28s (#%02d) %010u 0x%08X 0x%08X %u\n",
1799 desc_lookup(desc
), desc
, time
, data1
, data2
, line
);
1800 IWL_ERR(priv
, "blink1 blink2 ilink1 ilink2\n");
1801 IWL_ERR(priv
, "0x%05X 0x%05X 0x%05X 0x%05X\n", blink1
, blink2
,
1804 iwl_release_nic_access(priv
);
1806 EXPORT_SYMBOL(iwl_dump_nic_error_log
);
1808 #define EVENT_START_OFFSET (4 * sizeof(u32))
1811 * iwl_print_event_log - Dump error event log to syslog
1813 * NOTE: Must be called with iwl_grab_nic_access() already obtained!
1815 static void iwl_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
1816 u32 num_events
, u32 mode
)
1819 u32 base
; /* SRAM byte address of event log header */
1820 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
1821 u32 ptr
; /* SRAM byte address of log data */
1822 u32 ev
, time
, data
; /* event log data */
1824 if (num_events
== 0)
1826 if (priv
->ucode_type
== UCODE_INIT
)
1827 base
= le32_to_cpu(priv
->card_alive_init
.log_event_table_ptr
);
1829 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
1832 event_size
= 2 * sizeof(u32
);
1834 event_size
= 3 * sizeof(u32
);
1836 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
1838 /* "time" is actually "data" for mode 0 (no timestamp).
1839 * place event id # at far right for easier visual parsing. */
1840 for (i
= 0; i
< num_events
; i
++) {
1841 ev
= iwl_read_targ_mem(priv
, ptr
);
1843 time
= iwl_read_targ_mem(priv
, ptr
);
1847 IWL_ERR(priv
, "EVT_LOG:0x%08x:%04u\n", time
, ev
);
1849 data
= iwl_read_targ_mem(priv
, ptr
);
1851 IWL_ERR(priv
, "EVT_LOGT:%010u:0x%08x:%04u\n",
1857 void iwl_dump_nic_event_log(struct iwl_priv
*priv
)
1860 u32 base
; /* SRAM byte address of event log header */
1861 u32 capacity
; /* event log capacity in # entries */
1862 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
1863 u32 num_wraps
; /* # times uCode wrapped to top of log */
1864 u32 next_entry
; /* index of next entry to be written by uCode */
1865 u32 size
; /* # entries that we'll print */
1867 if (priv
->ucode_type
== UCODE_INIT
)
1868 base
= le32_to_cpu(priv
->card_alive_init
.log_event_table_ptr
);
1870 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
1872 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
1873 IWL_ERR(priv
, "Invalid event log pointer 0x%08X\n", base
);
1877 ret
= iwl_grab_nic_access(priv
);
1879 IWL_WARN(priv
, "Can not read from adapter at this time.\n");
1883 /* event log header */
1884 capacity
= iwl_read_targ_mem(priv
, base
);
1885 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
1886 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
1887 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
1889 size
= num_wraps
? capacity
: next_entry
;
1891 /* bail out if nothing in log */
1893 IWL_ERR(priv
, "Start IWL Event Log Dump: nothing in log\n");
1894 iwl_release_nic_access(priv
);
1898 IWL_ERR(priv
, "Start IWL Event Log Dump: display count %d, wraps %d\n",
1901 /* if uCode has wrapped back to top of log, start at the oldest entry,
1902 * i.e the next one that uCode would fill. */
1904 iwl_print_event_log(priv
, next_entry
,
1905 capacity
- next_entry
, mode
);
1906 /* (then/else) start at top of log */
1907 iwl_print_event_log(priv
, 0, next_entry
, mode
);
1909 iwl_release_nic_access(priv
);
1911 EXPORT_SYMBOL(iwl_dump_nic_event_log
);
1913 void iwl_rf_kill_ct_config(struct iwl_priv
*priv
)
1915 struct iwl_ct_kill_config cmd
;
1916 unsigned long flags
;
1919 spin_lock_irqsave(&priv
->lock
, flags
);
1920 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
1921 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
1922 spin_unlock_irqrestore(&priv
->lock
, flags
);
1924 cmd
.critical_temperature_R
=
1925 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
1927 ret
= iwl_send_cmd_pdu(priv
, REPLY_CT_KILL_CONFIG_CMD
,
1930 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1932 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD succeeded, "
1933 "critical temperature is %d\n",
1934 cmd
.critical_temperature_R
);
1936 EXPORT_SYMBOL(iwl_rf_kill_ct_config
);
1942 * Use: Sets the device's internal card state to enable, disable, or halt
1944 * When in the 'enable' state the card operates as normal.
1945 * When in the 'disable' state, the card enters into a low power mode.
1946 * When in the 'halt' state, the card is shut down and must be fully
1947 * restarted to come back on.
1949 int iwl_send_card_state(struct iwl_priv
*priv
, u32 flags
, u8 meta_flag
)
1951 struct iwl_host_cmd cmd
= {
1952 .id
= REPLY_CARD_STATE_CMD
,
1955 .meta
.flags
= meta_flag
,
1958 return iwl_send_cmd(priv
, &cmd
);
1960 EXPORT_SYMBOL(iwl_send_card_state
);
1962 void iwl_radio_kill_sw_disable_radio(struct iwl_priv
*priv
)
1964 unsigned long flags
;
1966 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
1969 IWL_DEBUG_RF_KILL(priv
, "Manual SW RF KILL set to: RADIO OFF\n");
1971 iwl_scan_cancel(priv
);
1972 /* FIXME: This is a workaround for AP */
1973 if (priv
->iw_mode
!= NL80211_IFTYPE_AP
) {
1974 spin_lock_irqsave(&priv
->lock
, flags
);
1975 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
1976 CSR_UCODE_SW_BIT_RFKILL
);
1977 spin_unlock_irqrestore(&priv
->lock
, flags
);
1978 /* call the host command only if no hw rf-kill set */
1979 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
) &&
1981 iwl_send_card_state(priv
,
1982 CARD_STATE_CMD_DISABLE
, 0);
1983 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
1984 /* make sure mac80211 stop sending Tx frame */
1985 if (priv
->mac80211_registered
)
1986 ieee80211_stop_queues(priv
->hw
);
1989 EXPORT_SYMBOL(iwl_radio_kill_sw_disable_radio
);
1991 int iwl_radio_kill_sw_enable_radio(struct iwl_priv
*priv
)
1993 unsigned long flags
;
1995 if (!test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
1998 IWL_DEBUG_RF_KILL(priv
, "Manual SW RF KILL set to: RADIO ON\n");
2000 spin_lock_irqsave(&priv
->lock
, flags
);
2001 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2003 /* If the driver is up it will receive CARD_STATE_NOTIFICATION
2004 * notification where it will clear SW rfkill status.
2005 * Setting it here would break the handler. Only if the
2006 * interface is down we can set here since we don't
2007 * receive any further notification.
2010 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2011 spin_unlock_irqrestore(&priv
->lock
, flags
);
2016 spin_lock_irqsave(&priv
->lock
, flags
);
2017 iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
2018 if (!iwl_grab_nic_access(priv
))
2019 iwl_release_nic_access(priv
);
2020 spin_unlock_irqrestore(&priv
->lock
, flags
);
2022 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
2023 IWL_DEBUG_RF_KILL(priv
, "Can not turn radio back on - "
2024 "disabled by HW switch\n");
2028 /* when driver is up while rfkill is on, it wont receive
2029 * any CARD_STATE_NOTIFICATION notifications so we have to
2030 * restart it in here
2032 if (priv
->is_open
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
2033 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2034 if (!iwl_is_rfkill(priv
))
2035 queue_work(priv
->workqueue
, &priv
->up
);
2038 /* If the driver is already loaded, it will receive
2039 * CARD_STATE_NOTIFICATION notifications and the handler will
2040 * call restart to reload the driver.
2044 EXPORT_SYMBOL(iwl_radio_kill_sw_enable_radio
);
2046 void iwl_bg_rf_kill(struct work_struct
*work
)
2048 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, rf_kill
);
2050 wake_up_interruptible(&priv
->wait_command_queue
);
2052 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2055 mutex_lock(&priv
->mutex
);
2057 if (!iwl_is_rfkill(priv
)) {
2058 IWL_DEBUG_RF_KILL(priv
,
2059 "HW and/or SW RF Kill no longer active, restarting "
2061 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
) &&
2063 queue_work(priv
->workqueue
, &priv
->restart
);
2065 /* make sure mac80211 stop sending Tx frame */
2066 if (priv
->mac80211_registered
)
2067 ieee80211_stop_queues(priv
->hw
);
2069 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
2070 IWL_DEBUG_RF_KILL(priv
, "Can not turn radio back on - "
2071 "disabled by SW switch\n");
2073 IWL_WARN(priv
, "Radio Frequency Kill Switch is On:\n"
2074 "Kill switch must be turned off for "
2075 "wireless networking to work.\n");
2077 mutex_unlock(&priv
->mutex
);
2078 iwl_rfkill_set_hw_state(priv
);
2080 EXPORT_SYMBOL(iwl_bg_rf_kill
);
2082 void iwl_rx_pm_sleep_notif(struct iwl_priv
*priv
,
2083 struct iwl_rx_mem_buffer
*rxb
)
2085 #ifdef CONFIG_IWLWIFI_DEBUG
2086 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2087 struct iwl_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
2088 IWL_DEBUG_RX(priv
, "sleep mode: %d, src: %d\n",
2089 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
2092 EXPORT_SYMBOL(iwl_rx_pm_sleep_notif
);
2094 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
2095 struct iwl_rx_mem_buffer
*rxb
)
2097 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2098 IWL_DEBUG_RADIO(priv
, "Dumping %d bytes of unhandled "
2099 "notification for %s:\n",
2100 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
2101 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
2103 EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif
);
2105 void iwl_rx_reply_error(struct iwl_priv
*priv
,
2106 struct iwl_rx_mem_buffer
*rxb
)
2108 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2110 IWL_ERR(priv
, "Error Reply type 0x%08X cmd %s (0x%02X) "
2111 "seq 0x%04X ser 0x%08X\n",
2112 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
2113 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
2114 pkt
->u
.err_resp
.cmd_id
,
2115 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
2116 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
2118 EXPORT_SYMBOL(iwl_rx_reply_error
);
2120 int iwl_mac_conf_tx(struct ieee80211_hw
*hw
, u16 queue
,
2121 const struct ieee80211_tx_queue_params
*params
)
2123 struct iwl_priv
*priv
= hw
->priv
;
2124 unsigned long flags
;
2127 IWL_DEBUG_MAC80211(priv
, "enter\n");
2129 if (!iwl_is_ready_rf(priv
)) {
2130 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
2134 if (queue
>= AC_NUM
) {
2135 IWL_DEBUG_MAC80211(priv
, "leave - queue >= AC_NUM %d\n", queue
);
2139 q
= AC_NUM
- 1 - queue
;
2141 spin_lock_irqsave(&priv
->lock
, flags
);
2143 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
2144 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
2145 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
2146 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
2147 cpu_to_le16((params
->txop
* 32));
2149 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
2150 priv
->qos_data
.qos_active
= 1;
2152 if (priv
->iw_mode
== NL80211_IFTYPE_AP
)
2153 iwl_activate_qos(priv
, 1);
2154 else if (priv
->assoc_id
&& iwl_is_associated(priv
))
2155 iwl_activate_qos(priv
, 0);
2157 spin_unlock_irqrestore(&priv
->lock
, flags
);
2159 IWL_DEBUG_MAC80211(priv
, "leave\n");
2162 EXPORT_SYMBOL(iwl_mac_conf_tx
);
2164 static void iwl_ht_conf(struct iwl_priv
*priv
,
2165 struct ieee80211_bss_conf
*bss_conf
)
2167 struct ieee80211_sta_ht_cap
*ht_conf
;
2168 struct iwl_ht_info
*iwl_conf
= &priv
->current_ht_config
;
2169 struct ieee80211_sta
*sta
;
2171 IWL_DEBUG_MAC80211(priv
, "enter: \n");
2173 if (!iwl_conf
->is_ht
)
2178 * It is totally wrong to base global information on something
2179 * that is valid only when associated, alas, this driver works
2180 * that way and I don't know how to fix it.
2184 sta
= ieee80211_find_sta(priv
->hw
, priv
->bssid
);
2189 ht_conf
= &sta
->ht_cap
;
2191 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_20
)
2192 iwl_conf
->sgf
|= HT_SHORT_GI_20MHZ
;
2193 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_40
)
2194 iwl_conf
->sgf
|= HT_SHORT_GI_40MHZ
;
2196 iwl_conf
->is_green_field
= !!(ht_conf
->cap
& IEEE80211_HT_CAP_GRN_FLD
);
2197 iwl_conf
->max_amsdu_size
=
2198 !!(ht_conf
->cap
& IEEE80211_HT_CAP_MAX_AMSDU
);
2200 iwl_conf
->supported_chan_width
=
2201 !!(ht_conf
->cap
& IEEE80211_HT_CAP_SUP_WIDTH_20_40
);
2204 * XXX: The HT configuration needs to be moved into iwl_mac_config()
2205 * to be done there correctly.
2208 iwl_conf
->extension_chan_offset
= IEEE80211_HT_PARAM_CHA_SEC_NONE
;
2209 if (conf_is_ht40_minus(&priv
->hw
->conf
))
2210 iwl_conf
->extension_chan_offset
= IEEE80211_HT_PARAM_CHA_SEC_BELOW
;
2211 else if (conf_is_ht40_plus(&priv
->hw
->conf
))
2212 iwl_conf
->extension_chan_offset
= IEEE80211_HT_PARAM_CHA_SEC_ABOVE
;
2214 /* If no above or below channel supplied disable FAT channel */
2215 if (iwl_conf
->extension_chan_offset
!= IEEE80211_HT_PARAM_CHA_SEC_ABOVE
&&
2216 iwl_conf
->extension_chan_offset
!= IEEE80211_HT_PARAM_CHA_SEC_BELOW
)
2217 iwl_conf
->supported_chan_width
= 0;
2219 iwl_conf
->sm_ps
= (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_SM_PS
) >> 2);
2221 memcpy(&iwl_conf
->mcs
, &ht_conf
->mcs
, 16);
2223 iwl_conf
->tx_chan_width
= iwl_conf
->supported_chan_width
!= 0;
2224 iwl_conf
->ht_protection
=
2225 bss_conf
->ht
.operation_mode
& IEEE80211_HT_OP_MODE_PROTECTION
;
2226 iwl_conf
->non_GF_STA_present
=
2227 !!(bss_conf
->ht
.operation_mode
& IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT
);
2231 IWL_DEBUG_MAC80211(priv
, "leave\n");
2234 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
2235 void iwl_bss_info_changed(struct ieee80211_hw
*hw
,
2236 struct ieee80211_vif
*vif
,
2237 struct ieee80211_bss_conf
*bss_conf
,
2240 struct iwl_priv
*priv
= hw
->priv
;
2242 IWL_DEBUG_MAC80211(priv
, "changes = 0x%X\n", changes
);
2244 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
2245 IWL_DEBUG_MAC80211(priv
, "ERP_PREAMBLE %d\n",
2246 bss_conf
->use_short_preamble
);
2247 if (bss_conf
->use_short_preamble
)
2248 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2250 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2253 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
2254 IWL_DEBUG_MAC80211(priv
, "ERP_CTS %d\n", bss_conf
->use_cts_prot
);
2255 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
2256 priv
->staging_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
2258 priv
->staging_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
2261 if (changes
& BSS_CHANGED_HT
) {
2262 iwl_ht_conf(priv
, bss_conf
);
2264 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2265 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2268 if (changes
& BSS_CHANGED_ASSOC
) {
2269 IWL_DEBUG_MAC80211(priv
, "ASSOC %d\n", bss_conf
->assoc
);
2270 /* This should never happen as this function should
2271 * never be called from interrupt context. */
2272 if (WARN_ON_ONCE(in_interrupt()))
2274 if (bss_conf
->assoc
) {
2275 priv
->assoc_id
= bss_conf
->aid
;
2276 priv
->beacon_int
= bss_conf
->beacon_int
;
2277 priv
->power_data
.dtim_period
= bss_conf
->dtim_period
;
2278 priv
->timestamp
= bss_conf
->timestamp
;
2279 priv
->assoc_capability
= bss_conf
->assoc_capability
;
2281 /* we have just associated, don't start scan too early
2282 * leave time for EAPOL exchange to complete
2284 priv
->next_scan_jiffies
= jiffies
+
2285 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC
;
2286 mutex_lock(&priv
->mutex
);
2287 priv
->cfg
->ops
->lib
->post_associate(priv
);
2288 mutex_unlock(&priv
->mutex
);
2291 IWL_DEBUG_MAC80211(priv
, "DISASSOC %d\n", bss_conf
->assoc
);
2293 } else if (changes
&& iwl_is_associated(priv
) && priv
->assoc_id
) {
2294 IWL_DEBUG_MAC80211(priv
, "Associated Changes %d\n", changes
);
2295 iwl_send_rxon_assoc(priv
);
2299 EXPORT_SYMBOL(iwl_bss_info_changed
);
2301 int iwl_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
2303 struct iwl_priv
*priv
= hw
->priv
;
2304 unsigned long flags
;
2307 IWL_DEBUG_MAC80211(priv
, "enter\n");
2309 if (!iwl_is_ready_rf(priv
)) {
2310 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
2314 if (priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) {
2315 IWL_DEBUG_MAC80211(priv
, "leave - not IBSS\n");
2319 spin_lock_irqsave(&priv
->lock
, flags
);
2321 if (priv
->ibss_beacon
)
2322 dev_kfree_skb(priv
->ibss_beacon
);
2324 priv
->ibss_beacon
= skb
;
2327 timestamp
= ((struct ieee80211_mgmt
*)skb
->data
)->u
.beacon
.timestamp
;
2328 priv
->timestamp
= le64_to_cpu(timestamp
);
2330 IWL_DEBUG_MAC80211(priv
, "leave\n");
2331 spin_unlock_irqrestore(&priv
->lock
, flags
);
2333 iwl_reset_qos(priv
);
2335 priv
->cfg
->ops
->lib
->post_associate(priv
);
2340 EXPORT_SYMBOL(iwl_mac_beacon_update
);
2342 int iwl_set_mode(struct iwl_priv
*priv
, int mode
)
2344 if (mode
== NL80211_IFTYPE_ADHOC
) {
2345 const struct iwl_channel_info
*ch_info
;
2347 ch_info
= iwl_get_channel_info(priv
,
2349 le16_to_cpu(priv
->staging_rxon
.channel
));
2351 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
2352 IWL_ERR(priv
, "channel %d not IBSS channel\n",
2353 le16_to_cpu(priv
->staging_rxon
.channel
));
2358 iwl_connection_init_rx_config(priv
, mode
);
2360 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2361 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2363 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2365 priv
->cfg
->ops
->smgmt
->clear_station_table(priv
);
2367 /* dont commit rxon if rf-kill is on*/
2368 if (!iwl_is_ready_rf(priv
))
2371 cancel_delayed_work(&priv
->scan_check
);
2372 if (iwl_scan_cancel_timeout(priv
, 100)) {
2373 IWL_WARN(priv
, "Aborted scan still in progress after 100ms\n");
2374 IWL_DEBUG_MAC80211(priv
, "leaving - scan abort failed.\n");
2378 iwlcore_commit_rxon(priv
);
2382 EXPORT_SYMBOL(iwl_set_mode
);
2384 int iwl_mac_add_interface(struct ieee80211_hw
*hw
,
2385 struct ieee80211_if_init_conf
*conf
)
2387 struct iwl_priv
*priv
= hw
->priv
;
2388 unsigned long flags
;
2390 IWL_DEBUG_MAC80211(priv
, "enter: type %d\n", conf
->type
);
2393 IWL_DEBUG_MAC80211(priv
, "leave - vif != NULL\n");
2397 spin_lock_irqsave(&priv
->lock
, flags
);
2398 priv
->vif
= conf
->vif
;
2399 priv
->iw_mode
= conf
->type
;
2401 spin_unlock_irqrestore(&priv
->lock
, flags
);
2403 mutex_lock(&priv
->mutex
);
2405 if (conf
->mac_addr
) {
2406 IWL_DEBUG_MAC80211(priv
, "Set %pM\n", conf
->mac_addr
);
2407 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
2410 if (iwl_set_mode(priv
, conf
->type
) == -EAGAIN
)
2411 /* we are not ready, will run again when ready */
2412 set_bit(STATUS_MODE_PENDING
, &priv
->status
);
2414 mutex_unlock(&priv
->mutex
);
2416 IWL_DEBUG_MAC80211(priv
, "leave\n");
2419 EXPORT_SYMBOL(iwl_mac_add_interface
);
2421 void iwl_mac_remove_interface(struct ieee80211_hw
*hw
,
2422 struct ieee80211_if_init_conf
*conf
)
2424 struct iwl_priv
*priv
= hw
->priv
;
2426 IWL_DEBUG_MAC80211(priv
, "enter\n");
2428 mutex_lock(&priv
->mutex
);
2430 if (iwl_is_ready_rf(priv
)) {
2431 iwl_scan_cancel_timeout(priv
, 100);
2432 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2433 iwlcore_commit_rxon(priv
);
2435 if (priv
->vif
== conf
->vif
) {
2437 memset(priv
->bssid
, 0, ETH_ALEN
);
2439 mutex_unlock(&priv
->mutex
);
2441 IWL_DEBUG_MAC80211(priv
, "leave\n");
2444 EXPORT_SYMBOL(iwl_mac_remove_interface
);
2447 * iwl_mac_config - mac80211 config callback
2449 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
2450 * be set inappropriately and the driver currently sets the hardware up to
2451 * use it whenever needed.
2453 int iwl_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
2455 struct iwl_priv
*priv
= hw
->priv
;
2456 const struct iwl_channel_info
*ch_info
;
2457 struct ieee80211_conf
*conf
= &hw
->conf
;
2458 unsigned long flags
= 0;
2461 int scan_active
= 0;
2463 mutex_lock(&priv
->mutex
);
2465 if (!iwl_is_ready(priv
)) {
2466 IWL_DEBUG_MAC80211(priv
, "leave - not ready\n");
2471 IWL_DEBUG_MAC80211(priv
, "enter to channel %d changed 0x%X\n",
2472 conf
->channel
->hw_value
, changed
);
2474 if (unlikely(!priv
->cfg
->mod_params
->disable_hw_scan
&&
2475 test_bit(STATUS_SCANNING
, &priv
->status
))) {
2477 IWL_DEBUG_MAC80211(priv
, "leave - scanning\n");
2481 /* during scanning mac80211 will delay channel setting until
2482 * scan finish with changed = 0
2484 if (!changed
|| (changed
& IEEE80211_CONF_CHANGE_CHANNEL
)) {
2488 ch
= ieee80211_frequency_to_channel(conf
->channel
->center_freq
);
2489 ch_info
= iwl_get_channel_info(priv
, conf
->channel
->band
, ch
);
2490 if (!is_channel_valid(ch_info
)) {
2491 IWL_DEBUG_MAC80211(priv
, "leave - invalid channel\n");
2496 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
&&
2497 !is_channel_ibss(ch_info
)) {
2498 IWL_ERR(priv
, "channel %d in band %d not "
2500 conf
->channel
->hw_value
, conf
->channel
->band
);
2505 priv
->current_ht_config
.is_ht
= conf_is_ht(conf
);
2507 spin_lock_irqsave(&priv
->lock
, flags
);
2510 /* if we are switching from ht to 2.4 clear flags
2511 * from any ht related info since 2.4 does not
2513 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != ch
))
2514 priv
->staging_rxon
.flags
= 0;
2516 iwl_set_rxon_channel(priv
, conf
->channel
);
2518 iwl_set_flags_for_band(priv
, conf
->channel
->band
);
2519 spin_unlock_irqrestore(&priv
->lock
, flags
);
2521 /* The list of supported rates and rate mask can be different
2522 * for each band; since the band may have changed, reset
2523 * the rate mask to what mac80211 lists */
2527 if (changed
& IEEE80211_CONF_CHANGE_PS
) {
2528 if (conf
->flags
& IEEE80211_CONF_PS
)
2529 ret
= iwl_power_set_user_mode(priv
, IWL_POWER_INDEX_3
);
2531 ret
= iwl_power_set_user_mode(priv
, IWL_POWER_MODE_CAM
);
2533 IWL_DEBUG_MAC80211(priv
, "Error setting power level\n");
2537 if (changed
& IEEE80211_CONF_CHANGE_POWER
) {
2538 IWL_DEBUG_MAC80211(priv
, "TX Power old=%d new=%d\n",
2539 priv
->tx_power_user_lmt
, conf
->power_level
);
2541 iwl_set_tx_power(priv
, conf
->power_level
, false);
2544 /* call to ensure that 4965 rx_chain is set properly in monitor mode */
2545 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2546 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2548 if (changed
& IEEE80211_CONF_CHANGE_RADIO_ENABLED
) {
2549 if (conf
->radio_enabled
&&
2550 iwl_radio_kill_sw_enable_radio(priv
)) {
2551 IWL_DEBUG_MAC80211(priv
, "leave - RF-KILL - "
2552 "waiting for uCode\n");
2556 if (!conf
->radio_enabled
)
2557 iwl_radio_kill_sw_disable_radio(priv
);
2560 if (!conf
->radio_enabled
) {
2561 IWL_DEBUG_MAC80211(priv
, "leave - radio disabled\n");
2568 if (memcmp(&priv
->active_rxon
,
2569 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
2570 iwlcore_commit_rxon(priv
);
2572 IWL_DEBUG_INFO(priv
, "Not re-sending same RXON configuration.\n");
2576 IWL_DEBUG_MAC80211(priv
, "leave\n");
2577 mutex_unlock(&priv
->mutex
);
2580 EXPORT_SYMBOL(iwl_mac_config
);
2584 int iwl_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
2586 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
2589 * This function is called when system goes into suspend state
2590 * mac80211 will call iwl_mac_stop() from the mac80211 suspend function
2591 * first but since iwl_mac_stop() has no knowledge of who the caller is,
2592 * it will not call apm_ops.stop() to stop the DMA operation.
2593 * Calling apm_ops.stop here to make sure we stop the DMA.
2595 priv
->cfg
->ops
->lib
->apm_ops
.stop(priv
);
2597 pci_save_state(pdev
);
2598 pci_disable_device(pdev
);
2599 pci_set_power_state(pdev
, PCI_D3hot
);
2603 EXPORT_SYMBOL(iwl_pci_suspend
);
2605 int iwl_pci_resume(struct pci_dev
*pdev
)
2607 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
2610 pci_set_power_state(pdev
, PCI_D0
);
2611 ret
= pci_enable_device(pdev
);
2614 pci_restore_state(pdev
);
2615 iwl_enable_interrupts(priv
);
2619 EXPORT_SYMBOL(iwl_pci_resume
);
2621 #endif /* CONFIG_PM */