1 /******************************************************************************
5 * Copyright(c) 2008 - 2011 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 <linux/sched.h>
33 #include <linux/slab.h>
34 #include <net/mac80211.h>
36 #include "iwl-eeprom.h"
37 #include "iwl-debug.h"
40 #include "iwl-power.h"
42 #include "iwl-shared.h"
44 #include "iwl-trans.h"
46 const u8 iwl_bcast_addr
[ETH_ALEN
] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
48 #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
49 #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
50 static void iwl_init_ht_hw_capab(const struct iwl_priv
*priv
,
51 struct ieee80211_sta_ht_cap
*ht_info
,
52 enum ieee80211_band band
)
55 u8 rx_chains_num
= hw_params(priv
).rx_chains_num
;
56 u8 tx_chains_num
= hw_params(priv
).tx_chains_num
;
59 memset(&ht_info
->mcs
, 0, sizeof(ht_info
->mcs
));
61 ht_info
->ht_supported
= true;
63 if (priv
->cfg
->ht_params
&&
64 priv
->cfg
->ht_params
->ht_greenfield_support
)
65 ht_info
->cap
|= IEEE80211_HT_CAP_GRN_FLD
;
66 ht_info
->cap
|= IEEE80211_HT_CAP_SGI_20
;
67 max_bit_rate
= MAX_BIT_RATE_20_MHZ
;
68 if (hw_params(priv
).ht40_channel
& BIT(band
)) {
69 ht_info
->cap
|= IEEE80211_HT_CAP_SUP_WIDTH_20_40
;
70 ht_info
->cap
|= IEEE80211_HT_CAP_SGI_40
;
71 ht_info
->mcs
.rx_mask
[4] = 0x01;
72 max_bit_rate
= MAX_BIT_RATE_40_MHZ
;
75 if (iwlagn_mod_params
.amsdu_size_8K
)
76 ht_info
->cap
|= IEEE80211_HT_CAP_MAX_AMSDU
;
78 ht_info
->ampdu_factor
= CFG_HT_RX_AMPDU_FACTOR_DEF
;
79 if (priv
->cfg
->bt_params
&& priv
->cfg
->bt_params
->ampdu_factor
)
80 ht_info
->ampdu_factor
= priv
->cfg
->bt_params
->ampdu_factor
;
81 ht_info
->ampdu_density
= CFG_HT_MPDU_DENSITY_DEF
;
82 if (priv
->cfg
->bt_params
&& priv
->cfg
->bt_params
->ampdu_density
)
83 ht_info
->ampdu_density
= priv
->cfg
->bt_params
->ampdu_density
;
85 ht_info
->mcs
.rx_mask
[0] = 0xFF;
86 if (rx_chains_num
>= 2)
87 ht_info
->mcs
.rx_mask
[1] = 0xFF;
88 if (rx_chains_num
>= 3)
89 ht_info
->mcs
.rx_mask
[2] = 0xFF;
91 /* Highest supported Rx data rate */
92 max_bit_rate
*= rx_chains_num
;
93 WARN_ON(max_bit_rate
& ~IEEE80211_HT_MCS_RX_HIGHEST_MASK
);
94 ht_info
->mcs
.rx_highest
= cpu_to_le16(max_bit_rate
);
96 /* Tx MCS capabilities */
97 ht_info
->mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
98 if (tx_chains_num
!= rx_chains_num
) {
99 ht_info
->mcs
.tx_params
|= IEEE80211_HT_MCS_TX_RX_DIFF
;
100 ht_info
->mcs
.tx_params
|= ((tx_chains_num
- 1) <<
101 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
);
106 * iwl_init_geos - Initialize mac80211's geo/channel info based from eeprom
108 int iwl_init_geos(struct iwl_priv
*priv
)
110 struct iwl_channel_info
*ch
;
111 struct ieee80211_supported_band
*sband
;
112 struct ieee80211_channel
*channels
;
113 struct ieee80211_channel
*geo_ch
;
114 struct ieee80211_rate
*rates
;
116 s8 max_tx_power
= IWLAGN_TX_POWER_TARGET_POWER_MIN
;
118 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
119 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
120 IWL_DEBUG_INFO(priv
, "Geography modes already initialized.\n");
121 set_bit(STATUS_GEO_CONFIGURED
, &priv
->shrd
->status
);
125 channels
= kcalloc(priv
->channel_count
,
126 sizeof(struct ieee80211_channel
), GFP_KERNEL
);
130 rates
= kcalloc(IWL_RATE_COUNT_LEGACY
, sizeof(struct ieee80211_rate
),
137 /* 5.2GHz channels start after the 2.4GHz channels */
138 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
139 sband
->channels
= &channels
[ARRAY_SIZE(iwl_eeprom_band_1
)];
141 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
142 sband
->n_bitrates
= IWL_RATE_COUNT_LEGACY
- IWL_FIRST_OFDM_RATE
;
144 if (priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
)
145 iwl_init_ht_hw_capab(priv
, &sband
->ht_cap
,
146 IEEE80211_BAND_5GHZ
);
148 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
149 sband
->channels
= channels
;
151 sband
->bitrates
= rates
;
152 sband
->n_bitrates
= IWL_RATE_COUNT_LEGACY
;
154 if (priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
)
155 iwl_init_ht_hw_capab(priv
, &sband
->ht_cap
,
156 IEEE80211_BAND_2GHZ
);
158 priv
->ieee_channels
= channels
;
159 priv
->ieee_rates
= rates
;
161 for (i
= 0; i
< priv
->channel_count
; i
++) {
162 ch
= &priv
->channel_info
[i
];
164 /* FIXME: might be removed if scan is OK */
165 if (!is_channel_valid(ch
))
168 sband
= &priv
->bands
[ch
->band
];
170 geo_ch
= &sband
->channels
[sband
->n_channels
++];
172 geo_ch
->center_freq
=
173 ieee80211_channel_to_frequency(ch
->channel
, ch
->band
);
174 geo_ch
->max_power
= ch
->max_power_avg
;
175 geo_ch
->max_antenna_gain
= 0xff;
176 geo_ch
->hw_value
= ch
->channel
;
178 if (is_channel_valid(ch
)) {
179 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
180 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
182 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
183 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
185 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
186 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
188 geo_ch
->flags
|= ch
->ht40_extension_channel
;
190 if (ch
->max_power_avg
> max_tx_power
)
191 max_tx_power
= ch
->max_power_avg
;
193 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
196 IWL_DEBUG_INFO(priv
, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n",
197 ch
->channel
, geo_ch
->center_freq
,
198 is_channel_a_band(ch
) ? "5.2" : "2.4",
199 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
200 "restricted" : "valid",
204 priv
->tx_power_device_lmt
= max_tx_power
;
205 priv
->tx_power_user_lmt
= max_tx_power
;
206 priv
->tx_power_next
= max_tx_power
;
208 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) &&
209 priv
->cfg
->sku
& EEPROM_SKU_CAP_BAND_52GHZ
) {
211 bus_get_hw_id(bus(priv
), buf
, sizeof(buf
));
212 IWL_INFO(priv
, "Incorrectly detected BG card as ABG. "
213 "Please send your %s to maintainer.\n", buf
);
214 priv
->cfg
->sku
&= ~EEPROM_SKU_CAP_BAND_52GHZ
;
217 IWL_INFO(priv
, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
218 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
219 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
221 set_bit(STATUS_GEO_CONFIGURED
, &priv
->shrd
->status
);
227 * iwl_free_geos - undo allocations in iwl_init_geos
229 void iwl_free_geos(struct iwl_priv
*priv
)
231 kfree(priv
->ieee_channels
);
232 kfree(priv
->ieee_rates
);
233 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->shrd
->status
);
236 static bool iwl_is_channel_extension(struct iwl_priv
*priv
,
237 enum ieee80211_band band
,
238 u16 channel
, u8 extension_chan_offset
)
240 const struct iwl_channel_info
*ch_info
;
242 ch_info
= iwl_get_channel_info(priv
, band
, channel
);
243 if (!is_channel_valid(ch_info
))
246 if (extension_chan_offset
== IEEE80211_HT_PARAM_CHA_SEC_ABOVE
)
247 return !(ch_info
->ht40_extension_channel
&
248 IEEE80211_CHAN_NO_HT40PLUS
);
249 else if (extension_chan_offset
== IEEE80211_HT_PARAM_CHA_SEC_BELOW
)
250 return !(ch_info
->ht40_extension_channel
&
251 IEEE80211_CHAN_NO_HT40MINUS
);
256 bool iwl_is_ht40_tx_allowed(struct iwl_priv
*priv
,
257 struct iwl_rxon_context
*ctx
,
258 struct ieee80211_sta_ht_cap
*ht_cap
)
260 if (!ctx
->ht
.enabled
|| !ctx
->ht
.is_40mhz
)
264 * We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40
265 * the bit will not set if it is pure 40MHz case
267 if (ht_cap
&& !ht_cap
->ht_supported
)
270 #ifdef CONFIG_IWLWIFI_DEBUGFS
271 if (priv
->disable_ht40
)
275 return iwl_is_channel_extension(priv
, priv
->band
,
276 le16_to_cpu(ctx
->staging
.channel
),
277 ctx
->ht
.extension_chan_offset
);
280 static u16
iwl_adjust_beacon_interval(u16 beacon_val
, u16 max_beacon_val
)
286 * If mac80211 hasn't given us a beacon interval, program
287 * the default into the device (not checking this here
288 * would cause the adjustment below to return the maximum
289 * value, which may break PAN.)
292 return DEFAULT_BEACON_INTERVAL
;
295 * If the beacon interval we obtained from the peer
296 * is too large, we'll have to wake up more often
297 * (and in IBSS case, we'll beacon too much)
299 * For example, if max_beacon_val is 4096, and the
300 * requested beacon interval is 7000, we'll have to
301 * use 3500 to be able to wake up on the beacons.
303 * This could badly influence beacon detection stats.
306 beacon_factor
= (beacon_val
+ max_beacon_val
) / max_beacon_val
;
307 new_val
= beacon_val
/ beacon_factor
;
310 new_val
= max_beacon_val
;
315 int iwl_send_rxon_timing(struct iwl_priv
*priv
, struct iwl_rxon_context
*ctx
)
318 s32 interval_tm
, rem
;
319 struct ieee80211_conf
*conf
= NULL
;
321 struct ieee80211_vif
*vif
= ctx
->vif
;
323 conf
= &priv
->hw
->conf
;
325 lockdep_assert_held(&priv
->shrd
->mutex
);
327 memset(&ctx
->timing
, 0, sizeof(struct iwl_rxon_time_cmd
));
329 ctx
->timing
.timestamp
= cpu_to_le64(priv
->timestamp
);
330 ctx
->timing
.listen_interval
= cpu_to_le16(conf
->listen_interval
);
332 beacon_int
= vif
? vif
->bss_conf
.beacon_int
: 0;
335 * TODO: For IBSS we need to get atim_window from mac80211,
336 * for now just always use 0
338 ctx
->timing
.atim_window
= 0;
340 if (ctx
->ctxid
== IWL_RXON_CTX_PAN
&&
341 (!ctx
->vif
|| ctx
->vif
->type
!= NL80211_IFTYPE_STATION
) &&
342 iwl_is_associated(priv
, IWL_RXON_CTX_BSS
) &&
343 priv
->contexts
[IWL_RXON_CTX_BSS
].vif
&&
344 priv
->contexts
[IWL_RXON_CTX_BSS
].vif
->bss_conf
.beacon_int
) {
345 ctx
->timing
.beacon_interval
=
346 priv
->contexts
[IWL_RXON_CTX_BSS
].timing
.beacon_interval
;
347 beacon_int
= le16_to_cpu(ctx
->timing
.beacon_interval
);
348 } else if (ctx
->ctxid
== IWL_RXON_CTX_BSS
&&
349 iwl_is_associated(priv
, IWL_RXON_CTX_PAN
) &&
350 priv
->contexts
[IWL_RXON_CTX_PAN
].vif
&&
351 priv
->contexts
[IWL_RXON_CTX_PAN
].vif
->bss_conf
.beacon_int
&&
352 (!iwl_is_associated_ctx(ctx
) || !ctx
->vif
||
353 !ctx
->vif
->bss_conf
.beacon_int
)) {
354 ctx
->timing
.beacon_interval
=
355 priv
->contexts
[IWL_RXON_CTX_PAN
].timing
.beacon_interval
;
356 beacon_int
= le16_to_cpu(ctx
->timing
.beacon_interval
);
358 beacon_int
= iwl_adjust_beacon_interval(beacon_int
,
359 IWL_MAX_UCODE_BEACON_INTERVAL
* TIME_UNIT
);
360 ctx
->timing
.beacon_interval
= cpu_to_le16(beacon_int
);
363 ctx
->beacon_int
= beacon_int
;
365 tsf
= priv
->timestamp
; /* tsf is modifed by do_div: copy it */
366 interval_tm
= beacon_int
* TIME_UNIT
;
367 rem
= do_div(tsf
, interval_tm
);
368 ctx
->timing
.beacon_init_val
= cpu_to_le32(interval_tm
- rem
);
370 ctx
->timing
.dtim_period
= vif
? (vif
->bss_conf
.dtim_period
?: 1) : 1;
372 IWL_DEBUG_ASSOC(priv
,
373 "beacon interval %d beacon timer %d beacon tim %d\n",
374 le16_to_cpu(ctx
->timing
.beacon_interval
),
375 le32_to_cpu(ctx
->timing
.beacon_init_val
),
376 le16_to_cpu(ctx
->timing
.atim_window
));
378 return iwl_trans_send_cmd_pdu(trans(priv
), ctx
->rxon_timing_cmd
,
379 CMD_SYNC
, sizeof(ctx
->timing
), &ctx
->timing
);
382 void iwl_set_rxon_hwcrypto(struct iwl_priv
*priv
, struct iwl_rxon_context
*ctx
,
385 struct iwl_rxon_cmd
*rxon
= &ctx
->staging
;
388 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
390 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
394 /* validate RXON structure is valid */
395 int iwl_check_rxon_cmd(struct iwl_priv
*priv
, struct iwl_rxon_context
*ctx
)
397 struct iwl_rxon_cmd
*rxon
= &ctx
->staging
;
400 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
401 if (rxon
->flags
& RXON_FLG_TGJ_NARROW_BAND_MSK
) {
402 IWL_WARN(priv
, "check 2.4G: wrong narrow\n");
405 if (rxon
->flags
& RXON_FLG_RADAR_DETECT_MSK
) {
406 IWL_WARN(priv
, "check 2.4G: wrong radar\n");
410 if (!(rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
)) {
411 IWL_WARN(priv
, "check 5.2G: not short slot!\n");
414 if (rxon
->flags
& RXON_FLG_CCK_MSK
) {
415 IWL_WARN(priv
, "check 5.2G: CCK!\n");
419 if ((rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1) {
420 IWL_WARN(priv
, "mac/bssid mcast!\n");
424 /* make sure basic rates 6Mbps and 1Mbps are supported */
425 if ((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0 &&
426 (rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0) {
427 IWL_WARN(priv
, "neither 1 nor 6 are basic\n");
431 if (le16_to_cpu(rxon
->assoc_id
) > 2007) {
432 IWL_WARN(priv
, "aid > 2007\n");
436 if ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
437 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
)) {
438 IWL_WARN(priv
, "CCK and short slot\n");
442 if ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
443 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
)) {
444 IWL_WARN(priv
, "CCK and auto detect");
448 if ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
449 RXON_FLG_TGG_PROTECT_MSK
)) ==
450 RXON_FLG_TGG_PROTECT_MSK
) {
451 IWL_WARN(priv
, "TGg but no auto-detect\n");
455 if (rxon
->channel
== 0) {
456 IWL_WARN(priv
, "zero channel is invalid\n");
460 WARN(errors
, "Invalid RXON (%#x), channel %d",
461 errors
, le16_to_cpu(rxon
->channel
));
463 return errors
? -EINVAL
: 0;
467 * iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
468 * @priv: staging_rxon is compared to active_rxon
470 * If the RXON structure is changing enough to require a new tune,
471 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
472 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
474 int iwl_full_rxon_required(struct iwl_priv
*priv
,
475 struct iwl_rxon_context
*ctx
)
477 const struct iwl_rxon_cmd
*staging
= &ctx
->staging
;
478 const struct iwl_rxon_cmd
*active
= &ctx
->active
;
482 IWL_DEBUG_INFO(priv, "need full RXON - " #cond "\n"); \
486 #define CHK_NEQ(c1, c2) \
487 if ((c1) != (c2)) { \
488 IWL_DEBUG_INFO(priv, "need full RXON - " \
489 #c1 " != " #c2 " - %d != %d\n", \
494 /* These items are only settable from the full RXON command */
495 CHK(!iwl_is_associated_ctx(ctx
));
496 CHK(compare_ether_addr(staging
->bssid_addr
, active
->bssid_addr
));
497 CHK(compare_ether_addr(staging
->node_addr
, active
->node_addr
));
498 CHK(compare_ether_addr(staging
->wlap_bssid_addr
,
499 active
->wlap_bssid_addr
));
500 CHK_NEQ(staging
->dev_type
, active
->dev_type
);
501 CHK_NEQ(staging
->channel
, active
->channel
);
502 CHK_NEQ(staging
->air_propagation
, active
->air_propagation
);
503 CHK_NEQ(staging
->ofdm_ht_single_stream_basic_rates
,
504 active
->ofdm_ht_single_stream_basic_rates
);
505 CHK_NEQ(staging
->ofdm_ht_dual_stream_basic_rates
,
506 active
->ofdm_ht_dual_stream_basic_rates
);
507 CHK_NEQ(staging
->ofdm_ht_triple_stream_basic_rates
,
508 active
->ofdm_ht_triple_stream_basic_rates
);
509 CHK_NEQ(staging
->assoc_id
, active
->assoc_id
);
511 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
512 * be updated with the RXON_ASSOC command -- however only some
513 * flag transitions are allowed using RXON_ASSOC */
515 /* Check if we are not switching bands */
516 CHK_NEQ(staging
->flags
& RXON_FLG_BAND_24G_MSK
,
517 active
->flags
& RXON_FLG_BAND_24G_MSK
);
519 /* Check if we are switching association toggle */
520 CHK_NEQ(staging
->filter_flags
& RXON_FILTER_ASSOC_MSK
,
521 active
->filter_flags
& RXON_FILTER_ASSOC_MSK
);
529 static void _iwl_set_rxon_ht(struct iwl_priv
*priv
,
530 struct iwl_ht_config
*ht_conf
,
531 struct iwl_rxon_context
*ctx
)
533 struct iwl_rxon_cmd
*rxon
= &ctx
->staging
;
535 if (!ctx
->ht
.enabled
) {
536 rxon
->flags
&= ~(RXON_FLG_CHANNEL_MODE_MSK
|
537 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
|
538 RXON_FLG_HT40_PROT_MSK
|
539 RXON_FLG_HT_PROT_MSK
);
543 /* FIXME: if the definition of ht.protection changed, the "translation"
544 * will be needed for rxon->flags
546 rxon
->flags
|= cpu_to_le32(ctx
->ht
.protection
<< RXON_FLG_HT_OPERATING_MODE_POS
);
548 /* Set up channel bandwidth:
549 * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */
550 /* clear the HT channel mode before set the mode */
551 rxon
->flags
&= ~(RXON_FLG_CHANNEL_MODE_MSK
|
552 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
);
553 if (iwl_is_ht40_tx_allowed(priv
, ctx
, NULL
)) {
555 if (ctx
->ht
.protection
== IEEE80211_HT_OP_MODE_PROTECTION_20MHZ
) {
556 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_PURE_40
;
557 /* Note: control channel is opposite of extension channel */
558 switch (ctx
->ht
.extension_chan_offset
) {
559 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE
:
560 rxon
->flags
&= ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
;
562 case IEEE80211_HT_PARAM_CHA_SEC_BELOW
:
563 rxon
->flags
|= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
;
567 /* Note: control channel is opposite of extension channel */
568 switch (ctx
->ht
.extension_chan_offset
) {
569 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE
:
570 rxon
->flags
&= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
);
571 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_MIXED
;
573 case IEEE80211_HT_PARAM_CHA_SEC_BELOW
:
574 rxon
->flags
|= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
;
575 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_MIXED
;
577 case IEEE80211_HT_PARAM_CHA_SEC_NONE
:
579 /* channel location only valid if in Mixed mode */
580 IWL_ERR(priv
, "invalid extension channel offset\n");
585 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_LEGACY
;
588 iwlagn_set_rxon_chain(priv
, ctx
);
590 IWL_DEBUG_ASSOC(priv
, "rxon flags 0x%X operation mode :0x%X "
591 "extension channel offset 0x%x\n",
592 le32_to_cpu(rxon
->flags
), ctx
->ht
.protection
,
593 ctx
->ht
.extension_chan_offset
);
596 void iwl_set_rxon_ht(struct iwl_priv
*priv
, struct iwl_ht_config
*ht_conf
)
598 struct iwl_rxon_context
*ctx
;
600 for_each_context(priv
, ctx
)
601 _iwl_set_rxon_ht(priv
, ht_conf
, ctx
);
604 /* Return valid, unused, channel for a passive scan to reset the RF */
605 u8
iwl_get_single_channel_number(struct iwl_priv
*priv
,
606 enum ieee80211_band band
)
608 const struct iwl_channel_info
*ch_info
;
612 struct iwl_rxon_context
*ctx
;
614 if (band
== IEEE80211_BAND_5GHZ
) {
616 max
= priv
->channel_count
;
622 for (i
= min
; i
< max
; i
++) {
625 for_each_context(priv
, ctx
) {
626 busy
= priv
->channel_info
[i
].channel
==
627 le16_to_cpu(ctx
->staging
.channel
);
635 channel
= priv
->channel_info
[i
].channel
;
636 ch_info
= iwl_get_channel_info(priv
, band
, channel
);
637 if (is_channel_valid(ch_info
))
645 * iwl_set_rxon_channel - Set the band and channel values in staging RXON
646 * @ch: requested channel as a pointer to struct ieee80211_channel
648 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
649 * in the staging RXON flag structure based on the ch->band
651 int iwl_set_rxon_channel(struct iwl_priv
*priv
, struct ieee80211_channel
*ch
,
652 struct iwl_rxon_context
*ctx
)
654 enum ieee80211_band band
= ch
->band
;
655 u16 channel
= ch
->hw_value
;
657 if ((le16_to_cpu(ctx
->staging
.channel
) == channel
) &&
658 (priv
->band
== band
))
661 ctx
->staging
.channel
= cpu_to_le16(channel
);
662 if (band
== IEEE80211_BAND_5GHZ
)
663 ctx
->staging
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
665 ctx
->staging
.flags
|= RXON_FLG_BAND_24G_MSK
;
669 IWL_DEBUG_INFO(priv
, "Staging channel set to %d [%d]\n", channel
, band
);
674 void iwl_set_flags_for_band(struct iwl_priv
*priv
,
675 struct iwl_rxon_context
*ctx
,
676 enum ieee80211_band band
,
677 struct ieee80211_vif
*vif
)
679 if (band
== IEEE80211_BAND_5GHZ
) {
680 ctx
->staging
.flags
&=
681 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
683 ctx
->staging
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
685 /* Copied from iwl_post_associate() */
686 if (vif
&& vif
->bss_conf
.use_short_slot
)
687 ctx
->staging
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
689 ctx
->staging
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
691 ctx
->staging
.flags
|= RXON_FLG_BAND_24G_MSK
;
692 ctx
->staging
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
693 ctx
->staging
.flags
&= ~RXON_FLG_CCK_MSK
;
698 * initialize rxon structure with default values from eeprom
700 void iwl_connection_init_rx_config(struct iwl_priv
*priv
,
701 struct iwl_rxon_context
*ctx
)
703 const struct iwl_channel_info
*ch_info
;
705 memset(&ctx
->staging
, 0, sizeof(ctx
->staging
));
708 ctx
->staging
.dev_type
= ctx
->unused_devtype
;
709 } else switch (ctx
->vif
->type
) {
710 case NL80211_IFTYPE_AP
:
711 ctx
->staging
.dev_type
= ctx
->ap_devtype
;
714 case NL80211_IFTYPE_STATION
:
715 ctx
->staging
.dev_type
= ctx
->station_devtype
;
716 ctx
->staging
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
719 case NL80211_IFTYPE_ADHOC
:
720 ctx
->staging
.dev_type
= ctx
->ibss_devtype
;
721 ctx
->staging
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
722 ctx
->staging
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
723 RXON_FILTER_ACCEPT_GRP_MSK
;
727 IWL_ERR(priv
, "Unsupported interface type %d\n",
733 /* TODO: Figure out when short_preamble would be set and cache from
735 if (!hw_to_local(priv
->hw
)->short_preamble
)
736 ctx
->staging
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
738 ctx
->staging
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
741 ch_info
= iwl_get_channel_info(priv
, priv
->band
,
742 le16_to_cpu(ctx
->active
.channel
));
745 ch_info
= &priv
->channel_info
[0];
747 ctx
->staging
.channel
= cpu_to_le16(ch_info
->channel
);
748 priv
->band
= ch_info
->band
;
750 iwl_set_flags_for_band(priv
, ctx
, priv
->band
, ctx
->vif
);
752 ctx
->staging
.ofdm_basic_rates
=
753 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
754 ctx
->staging
.cck_basic_rates
=
755 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
757 /* clear both MIX and PURE40 mode flag */
758 ctx
->staging
.flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED
|
759 RXON_FLG_CHANNEL_MODE_PURE_40
);
761 memcpy(ctx
->staging
.node_addr
, ctx
->vif
->addr
, ETH_ALEN
);
763 ctx
->staging
.ofdm_ht_single_stream_basic_rates
= 0xff;
764 ctx
->staging
.ofdm_ht_dual_stream_basic_rates
= 0xff;
765 ctx
->staging
.ofdm_ht_triple_stream_basic_rates
= 0xff;
768 void iwl_set_rate(struct iwl_priv
*priv
)
770 const struct ieee80211_supported_band
*hw
= NULL
;
771 struct ieee80211_rate
*rate
;
772 struct iwl_rxon_context
*ctx
;
775 hw
= iwl_get_hw_mode(priv
, priv
->band
);
777 IWL_ERR(priv
, "Failed to set rate: unable to get hw mode\n");
781 priv
->active_rate
= 0;
783 for (i
= 0; i
< hw
->n_bitrates
; i
++) {
784 rate
= &(hw
->bitrates
[i
]);
785 if (rate
->hw_value
< IWL_RATE_COUNT_LEGACY
)
786 priv
->active_rate
|= (1 << rate
->hw_value
);
789 IWL_DEBUG_RATE(priv
, "Set active_rate = %0x\n", priv
->active_rate
);
791 for_each_context(priv
, ctx
) {
792 ctx
->staging
.cck_basic_rates
=
793 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
795 ctx
->staging
.ofdm_basic_rates
=
796 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
800 void iwl_chswitch_done(struct iwl_priv
*priv
, bool is_success
)
804 * See iwlagn_mac_channel_switch.
806 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
808 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
811 if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING
,
812 &priv
->shrd
->status
))
813 ieee80211_chswitch_done(ctx
->vif
, is_success
);
816 #ifdef CONFIG_IWLWIFI_DEBUG
817 void iwl_print_rx_config_cmd(struct iwl_priv
*priv
,
818 enum iwl_rxon_context_id ctxid
)
820 struct iwl_rxon_context
*ctx
= &priv
->contexts
[ctxid
];
821 struct iwl_rxon_cmd
*rxon
= &ctx
->staging
;
823 IWL_DEBUG_RADIO(priv
, "RX CONFIG:\n");
824 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
825 IWL_DEBUG_RADIO(priv
, "u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
826 IWL_DEBUG_RADIO(priv
, "u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
827 IWL_DEBUG_RADIO(priv
, "u32 filter_flags: 0x%08x\n",
828 le32_to_cpu(rxon
->filter_flags
));
829 IWL_DEBUG_RADIO(priv
, "u8 dev_type: 0x%x\n", rxon
->dev_type
);
830 IWL_DEBUG_RADIO(priv
, "u8 ofdm_basic_rates: 0x%02x\n",
831 rxon
->ofdm_basic_rates
);
832 IWL_DEBUG_RADIO(priv
, "u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
833 IWL_DEBUG_RADIO(priv
, "u8[6] node_addr: %pM\n", rxon
->node_addr
);
834 IWL_DEBUG_RADIO(priv
, "u8[6] bssid_addr: %pM\n", rxon
->bssid_addr
);
835 IWL_DEBUG_RADIO(priv
, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
839 static void iwlagn_abort_notification_waits(struct iwl_priv
*priv
)
842 struct iwl_notification_wait
*wait_entry
;
844 spin_lock_irqsave(&priv
->notif_wait_lock
, flags
);
845 list_for_each_entry(wait_entry
, &priv
->notif_waits
, list
)
846 wait_entry
->aborted
= true;
847 spin_unlock_irqrestore(&priv
->notif_wait_lock
, flags
);
849 wake_up_all(&priv
->notif_waitq
);
852 void iwlagn_fw_error(struct iwl_priv
*priv
, bool ondemand
)
854 unsigned int reload_msec
;
855 unsigned long reload_jiffies
;
857 /* Set the FW error flag -- cleared on iwl_down */
858 set_bit(STATUS_FW_ERROR
, &priv
->shrd
->status
);
860 /* Cancel currently queued command. */
861 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->shrd
->status
);
863 iwlagn_abort_notification_waits(priv
);
865 /* Keep the restart process from trying to send host
866 * commands by clearing the ready bit */
867 clear_bit(STATUS_READY
, &priv
->shrd
->status
);
869 wake_up(&priv
->shrd
->wait_command_queue
);
873 * If firmware keep reloading, then it indicate something
874 * serious wrong and firmware having problem to recover
875 * from it. Instead of keep trying which will fill the syslog
876 * and hang the system, let's just stop it
878 reload_jiffies
= jiffies
;
879 reload_msec
= jiffies_to_msecs((long) reload_jiffies
-
880 (long) priv
->reload_jiffies
);
881 priv
->reload_jiffies
= reload_jiffies
;
882 if (reload_msec
<= IWL_MIN_RELOAD_DURATION
) {
883 priv
->reload_count
++;
884 if (priv
->reload_count
>= IWL_MAX_CONTINUE_RELOAD_CNT
) {
885 IWL_ERR(priv
, "BUG_ON, Stop restarting\n");
889 priv
->reload_count
= 0;
892 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
)) {
893 if (iwlagn_mod_params
.restart_fw
) {
894 IWL_DEBUG_FW_ERRORS(priv
,
895 "Restarting adapter due to uCode error.\n");
896 queue_work(priv
->shrd
->workqueue
, &priv
->restart
);
898 IWL_DEBUG_FW_ERRORS(priv
,
899 "Detected FW error, but not restarting\n");
903 static int iwl_apm_stop_master(struct iwl_priv
*priv
)
907 /* stop device's busmaster DMA activity */
908 iwl_set_bit(bus(priv
), CSR_RESET
, CSR_RESET_REG_FLAG_STOP_MASTER
);
910 ret
= iwl_poll_bit(bus(priv
), CSR_RESET
,
911 CSR_RESET_REG_FLAG_MASTER_DISABLED
,
912 CSR_RESET_REG_FLAG_MASTER_DISABLED
, 100);
914 IWL_WARN(priv
, "Master Disable Timed Out, 100 usec\n");
916 IWL_DEBUG_INFO(priv
, "stop master\n");
921 void iwl_apm_stop(struct iwl_priv
*priv
)
923 IWL_DEBUG_INFO(priv
, "Stop card, put in low power state\n");
925 clear_bit(STATUS_DEVICE_ENABLED
, &priv
->shrd
->status
);
927 /* Stop device's DMA activity */
928 iwl_apm_stop_master(priv
);
930 /* Reset the entire device */
931 iwl_set_bit(bus(priv
), CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
936 * Clear "initialization complete" bit to move adapter from
937 * D0A* (powered-up Active) --> D0U* (Uninitialized) state.
939 iwl_clear_bit(bus(priv
), CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
944 * Start up NIC's basic functionality after it has been reset
945 * (e.g. after platform boot, or shutdown via iwl_apm_stop())
946 * NOTE: This does not load uCode nor start the embedded processor
948 int iwl_apm_init(struct iwl_priv
*priv
)
951 IWL_DEBUG_INFO(priv
, "Init card's basic functions\n");
954 * Use "set_bit" below rather than "write", to preserve any hardware
955 * bits already set by default after reset.
958 /* Disable L0S exit timer (platform NMI Work/Around) */
959 iwl_set_bit(bus(priv
), CSR_GIO_CHICKEN_BITS
,
960 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER
);
963 * Disable L0s without affecting L1;
964 * don't wait for ICH L0s (ICH bug W/A)
966 iwl_set_bit(bus(priv
), CSR_GIO_CHICKEN_BITS
,
967 CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX
);
969 /* Set FH wait threshold to maximum (HW error during stress W/A) */
970 iwl_set_bit(bus(priv
), CSR_DBG_HPET_MEM_REG
, CSR_DBG_HPET_MEM_REG_VAL
);
973 * Enable HAP INTA (interrupt from management bus) to
974 * wake device's PCI Express link L1a -> L0s
976 iwl_set_bit(bus(priv
), CSR_HW_IF_CONFIG_REG
,
977 CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A
);
979 bus_apm_config(bus(priv
));
981 /* Configure analog phase-lock-loop before activating to D0A */
982 if (priv
->cfg
->base_params
->pll_cfg_val
)
983 iwl_set_bit(bus(priv
), CSR_ANA_PLL_CFG
,
984 priv
->cfg
->base_params
->pll_cfg_val
);
987 * Set "initialization complete" bit to move adapter from
988 * D0U* --> D0A* (powered-up active) state.
990 iwl_set_bit(bus(priv
), CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
993 * Wait for clock stabilization; once stabilized, access to
994 * device-internal resources is supported, e.g. iwl_write_prph()
995 * and accesses to uCode SRAM.
997 ret
= iwl_poll_bit(bus(priv
), CSR_GP_CNTRL
,
998 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
,
999 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
, 25000);
1001 IWL_DEBUG_INFO(priv
, "Failed to init the card\n");
1006 * Enable DMA clock and wait for it to stabilize.
1008 * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits
1009 * do not disable clocks. This preserves any hardware bits already
1010 * set by default in "CLK_CTRL_REG" after reset.
1012 iwl_write_prph(bus(priv
), APMG_CLK_EN_REG
, APMG_CLK_VAL_DMA_CLK_RQT
);
1015 /* Disable L1-Active */
1016 iwl_set_bits_prph(bus(priv
), APMG_PCIDEV_STT_REG
,
1017 APMG_PCIDEV_STT_VAL_L1_ACT_DIS
);
1019 set_bit(STATUS_DEVICE_ENABLED
, &priv
->shrd
->status
);
1026 int iwl_set_tx_power(struct iwl_priv
*priv
, s8 tx_power
, bool force
)
1031 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
1033 lockdep_assert_held(&priv
->shrd
->mutex
);
1035 if (priv
->tx_power_user_lmt
== tx_power
&& !force
)
1038 if (tx_power
< IWLAGN_TX_POWER_TARGET_POWER_MIN
) {
1040 "Requested user TXPOWER %d below lower limit %d.\n",
1042 IWLAGN_TX_POWER_TARGET_POWER_MIN
);
1046 if (tx_power
> priv
->tx_power_device_lmt
) {
1048 "Requested user TXPOWER %d above upper limit %d.\n",
1049 tx_power
, priv
->tx_power_device_lmt
);
1053 if (!iwl_is_ready_rf(priv
->shrd
))
1056 /* scan complete and commit_rxon use tx_power_next value,
1057 * it always need to be updated for newest request */
1058 priv
->tx_power_next
= tx_power
;
1060 /* do not set tx power when scanning or channel changing */
1061 defer
= test_bit(STATUS_SCANNING
, &priv
->shrd
->status
) ||
1062 memcmp(&ctx
->active
, &ctx
->staging
, sizeof(ctx
->staging
));
1063 if (defer
&& !force
) {
1064 IWL_DEBUG_INFO(priv
, "Deferring tx power set\n");
1068 prev_tx_power
= priv
->tx_power_user_lmt
;
1069 priv
->tx_power_user_lmt
= tx_power
;
1071 ret
= iwlagn_send_tx_power(priv
);
1073 /* if fail to set tx_power, restore the orig. tx power */
1075 priv
->tx_power_user_lmt
= prev_tx_power
;
1076 priv
->tx_power_next
= prev_tx_power
;
1081 void iwl_send_bt_config(struct iwl_priv
*priv
)
1083 struct iwl_bt_cmd bt_cmd
= {
1084 .lead_time
= BT_LEAD_TIME_DEF
,
1085 .max_kill
= BT_MAX_KILL_DEF
,
1090 if (!iwlagn_mod_params
.bt_coex_active
)
1091 bt_cmd
.flags
= BT_COEX_DISABLE
;
1093 bt_cmd
.flags
= BT_COEX_ENABLE
;
1095 priv
->bt_enable_flag
= bt_cmd
.flags
;
1096 IWL_DEBUG_INFO(priv
, "BT coex %s\n",
1097 (bt_cmd
.flags
== BT_COEX_DISABLE
) ? "disable" : "active");
1099 if (iwl_trans_send_cmd_pdu(trans(priv
), REPLY_BT_CONFIG
,
1100 CMD_SYNC
, sizeof(struct iwl_bt_cmd
), &bt_cmd
))
1101 IWL_ERR(priv
, "failed to send BT Coex Config\n");
1104 int iwl_send_statistics_request(struct iwl_priv
*priv
, u8 flags
, bool clear
)
1106 struct iwl_statistics_cmd statistics_cmd
= {
1107 .configuration_flags
=
1108 clear
? IWL_STATS_CONF_CLEAR_STATS
: 0,
1111 if (flags
& CMD_ASYNC
)
1112 return iwl_trans_send_cmd_pdu(trans(priv
), REPLY_STATISTICS_CMD
,
1114 sizeof(struct iwl_statistics_cmd
),
1117 return iwl_trans_send_cmd_pdu(trans(priv
), REPLY_STATISTICS_CMD
,
1119 sizeof(struct iwl_statistics_cmd
),
1123 int iwlagn_mac_conf_tx(struct ieee80211_hw
*hw
,
1124 struct ieee80211_vif
*vif
, u16 queue
,
1125 const struct ieee80211_tx_queue_params
*params
)
1127 struct iwl_priv
*priv
= hw
->priv
;
1128 struct iwl_rxon_context
*ctx
;
1129 unsigned long flags
;
1132 IWL_DEBUG_MAC80211(priv
, "enter\n");
1134 if (!iwl_is_ready_rf(priv
->shrd
)) {
1135 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
1139 if (queue
>= AC_NUM
) {
1140 IWL_DEBUG_MAC80211(priv
, "leave - queue >= AC_NUM %d\n", queue
);
1144 q
= AC_NUM
- 1 - queue
;
1146 spin_lock_irqsave(&priv
->shrd
->lock
, flags
);
1150 * This may need to be done per interface in nl80211/cfg80211/mac80211.
1152 for_each_context(priv
, ctx
) {
1153 ctx
->qos_data
.def_qos_parm
.ac
[q
].cw_min
=
1154 cpu_to_le16(params
->cw_min
);
1155 ctx
->qos_data
.def_qos_parm
.ac
[q
].cw_max
=
1156 cpu_to_le16(params
->cw_max
);
1157 ctx
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
1158 ctx
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
1159 cpu_to_le16((params
->txop
* 32));
1161 ctx
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
1164 spin_unlock_irqrestore(&priv
->shrd
->lock
, flags
);
1166 IWL_DEBUG_MAC80211(priv
, "leave\n");
1170 int iwlagn_mac_tx_last_beacon(struct ieee80211_hw
*hw
)
1172 struct iwl_priv
*priv
= hw
->priv
;
1174 return priv
->ibss_manager
== IWL_IBSS_MANAGER
;
1177 static int iwl_set_mode(struct iwl_priv
*priv
, struct iwl_rxon_context
*ctx
)
1179 iwl_connection_init_rx_config(priv
, ctx
);
1181 iwlagn_set_rxon_chain(priv
, ctx
);
1183 return iwlagn_commit_rxon(priv
, ctx
);
1186 static int iwl_setup_interface(struct iwl_priv
*priv
,
1187 struct iwl_rxon_context
*ctx
)
1189 struct ieee80211_vif
*vif
= ctx
->vif
;
1192 lockdep_assert_held(&priv
->shrd
->mutex
);
1195 * This variable will be correct only when there's just
1196 * a single context, but all code using it is for hardware
1197 * that supports only one context.
1199 priv
->iw_mode
= vif
->type
;
1201 ctx
->is_active
= true;
1203 err
= iwl_set_mode(priv
, ctx
);
1205 if (!ctx
->always_active
)
1206 ctx
->is_active
= false;
1210 if (priv
->cfg
->bt_params
&& priv
->cfg
->bt_params
->advanced_bt_coexist
&&
1211 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1213 * pretend to have high BT traffic as long as we
1214 * are operating in IBSS mode, as this will cause
1215 * the rate scaling etc. to behave as intended.
1217 priv
->bt_traffic_load
= IWL_BT_COEX_TRAFFIC_LOAD_HIGH
;
1223 int iwlagn_mac_add_interface(struct ieee80211_hw
*hw
,
1224 struct ieee80211_vif
*vif
)
1226 struct iwl_priv
*priv
= hw
->priv
;
1227 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
1228 struct iwl_rxon_context
*tmp
, *ctx
= NULL
;
1230 enum nl80211_iftype viftype
= ieee80211_vif_type_p2p(vif
);
1232 IWL_DEBUG_MAC80211(priv
, "enter: type %d, addr %pM\n",
1233 viftype
, vif
->addr
);
1235 cancel_delayed_work_sync(&priv
->hw_roc_disable_work
);
1237 mutex_lock(&priv
->shrd
->mutex
);
1239 iwlagn_disable_roc(priv
);
1241 if (!iwl_is_ready_rf(priv
->shrd
)) {
1242 IWL_WARN(priv
, "Try to add interface when device not ready\n");
1247 for_each_context(priv
, tmp
) {
1248 u32 possible_modes
=
1249 tmp
->interface_modes
| tmp
->exclusive_interface_modes
;
1252 /* check if this busy context is exclusive */
1253 if (tmp
->exclusive_interface_modes
&
1254 BIT(tmp
->vif
->type
)) {
1261 if (!(possible_modes
& BIT(viftype
)))
1264 /* have maybe usable context w/o interface */
1274 vif_priv
->ctx
= ctx
;
1277 err
= iwl_setup_interface(priv
, ctx
);
1282 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
1284 mutex_unlock(&priv
->shrd
->mutex
);
1286 IWL_DEBUG_MAC80211(priv
, "leave\n");
1290 static void iwl_teardown_interface(struct iwl_priv
*priv
,
1291 struct ieee80211_vif
*vif
,
1294 struct iwl_rxon_context
*ctx
= iwl_rxon_ctx_from_vif(vif
);
1296 lockdep_assert_held(&priv
->shrd
->mutex
);
1298 if (priv
->scan_vif
== vif
) {
1299 iwl_scan_cancel_timeout(priv
, 200);
1300 iwl_force_scan_end(priv
);
1304 iwl_set_mode(priv
, ctx
);
1305 if (!ctx
->always_active
)
1306 ctx
->is_active
= false;
1310 * When removing the IBSS interface, overwrite the
1311 * BT traffic load with the stored one from the last
1312 * notification, if any. If this is a device that
1313 * doesn't implement this, this has no effect since
1314 * both values are the same and zero.
1316 if (vif
->type
== NL80211_IFTYPE_ADHOC
)
1317 priv
->bt_traffic_load
= priv
->last_bt_traffic_load
;
1320 void iwlagn_mac_remove_interface(struct ieee80211_hw
*hw
,
1321 struct ieee80211_vif
*vif
)
1323 struct iwl_priv
*priv
= hw
->priv
;
1324 struct iwl_rxon_context
*ctx
= iwl_rxon_ctx_from_vif(vif
);
1326 IWL_DEBUG_MAC80211(priv
, "enter\n");
1328 mutex_lock(&priv
->shrd
->mutex
);
1330 if (WARN_ON(ctx
->vif
!= vif
)) {
1331 struct iwl_rxon_context
*tmp
;
1332 IWL_ERR(priv
, "ctx->vif = %p, vif = %p\n", ctx
->vif
, vif
);
1333 for_each_context(priv
, tmp
)
1334 IWL_ERR(priv
, "\tID = %d:\tctx = %p\tctx->vif = %p\n",
1335 tmp
->ctxid
, tmp
, tmp
->vif
);
1339 iwl_teardown_interface(priv
, vif
, false);
1341 mutex_unlock(&priv
->shrd
->mutex
);
1343 IWL_DEBUG_MAC80211(priv
, "leave\n");
1347 #ifdef CONFIG_IWLWIFI_DEBUGFS
1349 #define IWL_TRAFFIC_DUMP_SIZE (IWL_TRAFFIC_ENTRY_SIZE * IWL_TRAFFIC_ENTRIES)
1351 void iwl_reset_traffic_log(struct iwl_priv
*priv
)
1353 priv
->tx_traffic_idx
= 0;
1354 priv
->rx_traffic_idx
= 0;
1355 if (priv
->tx_traffic
)
1356 memset(priv
->tx_traffic
, 0, IWL_TRAFFIC_DUMP_SIZE
);
1357 if (priv
->rx_traffic
)
1358 memset(priv
->rx_traffic
, 0, IWL_TRAFFIC_DUMP_SIZE
);
1361 int iwl_alloc_traffic_mem(struct iwl_priv
*priv
)
1363 u32 traffic_size
= IWL_TRAFFIC_DUMP_SIZE
;
1365 if (iwl_get_debug_level(priv
->shrd
) & IWL_DL_TX
) {
1366 if (!priv
->tx_traffic
) {
1368 kzalloc(traffic_size
, GFP_KERNEL
);
1369 if (!priv
->tx_traffic
)
1373 if (iwl_get_debug_level(priv
->shrd
) & IWL_DL_RX
) {
1374 if (!priv
->rx_traffic
) {
1376 kzalloc(traffic_size
, GFP_KERNEL
);
1377 if (!priv
->rx_traffic
)
1381 iwl_reset_traffic_log(priv
);
1385 void iwl_free_traffic_mem(struct iwl_priv
*priv
)
1387 kfree(priv
->tx_traffic
);
1388 priv
->tx_traffic
= NULL
;
1390 kfree(priv
->rx_traffic
);
1391 priv
->rx_traffic
= NULL
;
1394 void iwl_dbg_log_tx_data_frame(struct iwl_priv
*priv
,
1395 u16 length
, struct ieee80211_hdr
*header
)
1400 if (likely(!(iwl_get_debug_level(priv
->shrd
) & IWL_DL_TX
)))
1403 if (!priv
->tx_traffic
)
1406 fc
= header
->frame_control
;
1407 if (ieee80211_is_data(fc
)) {
1408 len
= (length
> IWL_TRAFFIC_ENTRY_SIZE
)
1409 ? IWL_TRAFFIC_ENTRY_SIZE
: length
;
1410 memcpy((priv
->tx_traffic
+
1411 (priv
->tx_traffic_idx
* IWL_TRAFFIC_ENTRY_SIZE
)),
1413 priv
->tx_traffic_idx
=
1414 (priv
->tx_traffic_idx
+ 1) % IWL_TRAFFIC_ENTRIES
;
1418 void iwl_dbg_log_rx_data_frame(struct iwl_priv
*priv
,
1419 u16 length
, struct ieee80211_hdr
*header
)
1424 if (likely(!(iwl_get_debug_level(priv
->shrd
) & IWL_DL_RX
)))
1427 if (!priv
->rx_traffic
)
1430 fc
= header
->frame_control
;
1431 if (ieee80211_is_data(fc
)) {
1432 len
= (length
> IWL_TRAFFIC_ENTRY_SIZE
)
1433 ? IWL_TRAFFIC_ENTRY_SIZE
: length
;
1434 memcpy((priv
->rx_traffic
+
1435 (priv
->rx_traffic_idx
* IWL_TRAFFIC_ENTRY_SIZE
)),
1437 priv
->rx_traffic_idx
=
1438 (priv
->rx_traffic_idx
+ 1) % IWL_TRAFFIC_ENTRIES
;
1442 const char *get_mgmt_string(int cmd
)
1445 IWL_CMD(MANAGEMENT_ASSOC_REQ
);
1446 IWL_CMD(MANAGEMENT_ASSOC_RESP
);
1447 IWL_CMD(MANAGEMENT_REASSOC_REQ
);
1448 IWL_CMD(MANAGEMENT_REASSOC_RESP
);
1449 IWL_CMD(MANAGEMENT_PROBE_REQ
);
1450 IWL_CMD(MANAGEMENT_PROBE_RESP
);
1451 IWL_CMD(MANAGEMENT_BEACON
);
1452 IWL_CMD(MANAGEMENT_ATIM
);
1453 IWL_CMD(MANAGEMENT_DISASSOC
);
1454 IWL_CMD(MANAGEMENT_AUTH
);
1455 IWL_CMD(MANAGEMENT_DEAUTH
);
1456 IWL_CMD(MANAGEMENT_ACTION
);
1463 const char *get_ctrl_string(int cmd
)
1466 IWL_CMD(CONTROL_BACK_REQ
);
1467 IWL_CMD(CONTROL_BACK
);
1468 IWL_CMD(CONTROL_PSPOLL
);
1469 IWL_CMD(CONTROL_RTS
);
1470 IWL_CMD(CONTROL_CTS
);
1471 IWL_CMD(CONTROL_ACK
);
1472 IWL_CMD(CONTROL_CFEND
);
1473 IWL_CMD(CONTROL_CFENDACK
);
1480 void iwl_clear_traffic_stats(struct iwl_priv
*priv
)
1482 memset(&priv
->tx_stats
, 0, sizeof(struct traffic_stats
));
1483 memset(&priv
->rx_stats
, 0, sizeof(struct traffic_stats
));
1487 * if CONFIG_IWLWIFI_DEBUGFS defined, iwl_update_stats function will
1488 * record all the MGMT, CTRL and DATA pkt for both TX and Rx pass.
1489 * Use debugFs to display the rx/rx_statistics
1490 * if CONFIG_IWLWIFI_DEBUGFS not being defined, then no MGMT and CTRL
1491 * information will be recorded, but DATA pkt still will be recorded
1492 * for the reason of iwl_led.c need to control the led blinking based on
1493 * number of tx and rx data.
1496 void iwl_update_stats(struct iwl_priv
*priv
, bool is_tx
, __le16 fc
, u16 len
)
1498 struct traffic_stats
*stats
;
1501 stats
= &priv
->tx_stats
;
1503 stats
= &priv
->rx_stats
;
1505 if (ieee80211_is_mgmt(fc
)) {
1506 switch (fc
& cpu_to_le16(IEEE80211_FCTL_STYPE
)) {
1507 case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ
):
1508 stats
->mgmt
[MANAGEMENT_ASSOC_REQ
]++;
1510 case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP
):
1511 stats
->mgmt
[MANAGEMENT_ASSOC_RESP
]++;
1513 case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ
):
1514 stats
->mgmt
[MANAGEMENT_REASSOC_REQ
]++;
1516 case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP
):
1517 stats
->mgmt
[MANAGEMENT_REASSOC_RESP
]++;
1519 case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
):
1520 stats
->mgmt
[MANAGEMENT_PROBE_REQ
]++;
1522 case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP
):
1523 stats
->mgmt
[MANAGEMENT_PROBE_RESP
]++;
1525 case cpu_to_le16(IEEE80211_STYPE_BEACON
):
1526 stats
->mgmt
[MANAGEMENT_BEACON
]++;
1528 case cpu_to_le16(IEEE80211_STYPE_ATIM
):
1529 stats
->mgmt
[MANAGEMENT_ATIM
]++;
1531 case cpu_to_le16(IEEE80211_STYPE_DISASSOC
):
1532 stats
->mgmt
[MANAGEMENT_DISASSOC
]++;
1534 case cpu_to_le16(IEEE80211_STYPE_AUTH
):
1535 stats
->mgmt
[MANAGEMENT_AUTH
]++;
1537 case cpu_to_le16(IEEE80211_STYPE_DEAUTH
):
1538 stats
->mgmt
[MANAGEMENT_DEAUTH
]++;
1540 case cpu_to_le16(IEEE80211_STYPE_ACTION
):
1541 stats
->mgmt
[MANAGEMENT_ACTION
]++;
1544 } else if (ieee80211_is_ctl(fc
)) {
1545 switch (fc
& cpu_to_le16(IEEE80211_FCTL_STYPE
)) {
1546 case cpu_to_le16(IEEE80211_STYPE_BACK_REQ
):
1547 stats
->ctrl
[CONTROL_BACK_REQ
]++;
1549 case cpu_to_le16(IEEE80211_STYPE_BACK
):
1550 stats
->ctrl
[CONTROL_BACK
]++;
1552 case cpu_to_le16(IEEE80211_STYPE_PSPOLL
):
1553 stats
->ctrl
[CONTROL_PSPOLL
]++;
1555 case cpu_to_le16(IEEE80211_STYPE_RTS
):
1556 stats
->ctrl
[CONTROL_RTS
]++;
1558 case cpu_to_le16(IEEE80211_STYPE_CTS
):
1559 stats
->ctrl
[CONTROL_CTS
]++;
1561 case cpu_to_le16(IEEE80211_STYPE_ACK
):
1562 stats
->ctrl
[CONTROL_ACK
]++;
1564 case cpu_to_le16(IEEE80211_STYPE_CFEND
):
1565 stats
->ctrl
[CONTROL_CFEND
]++;
1567 case cpu_to_le16(IEEE80211_STYPE_CFENDACK
):
1568 stats
->ctrl
[CONTROL_CFENDACK
]++;
1574 stats
->data_bytes
+= len
;
1579 static void iwl_force_rf_reset(struct iwl_priv
*priv
)
1581 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
1584 if (!iwl_is_any_associated(priv
)) {
1585 IWL_DEBUG_SCAN(priv
, "force reset rejected: not associated\n");
1589 * There is no easy and better way to force reset the radio,
1590 * the only known method is switching channel which will force to
1591 * reset and tune the radio.
1592 * Use internal short scan (single channel) operation to should
1593 * achieve this objective.
1594 * Driver should reset the radio when number of consecutive missed
1595 * beacon, or any other uCode error condition detected.
1597 IWL_DEBUG_INFO(priv
, "perform radio reset.\n");
1598 iwl_internal_short_hw_scan(priv
);
1602 int iwl_force_reset(struct iwl_priv
*priv
, int mode
, bool external
)
1604 struct iwl_force_reset
*force_reset
;
1606 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
1609 if (mode
>= IWL_MAX_FORCE_RESET
) {
1610 IWL_DEBUG_INFO(priv
, "invalid reset request.\n");
1613 force_reset
= &priv
->force_reset
[mode
];
1614 force_reset
->reset_request_count
++;
1616 if (force_reset
->last_force_reset_jiffies
&&
1617 time_after(force_reset
->last_force_reset_jiffies
+
1618 force_reset
->reset_duration
, jiffies
)) {
1619 IWL_DEBUG_INFO(priv
, "force reset rejected\n");
1620 force_reset
->reset_reject_count
++;
1624 force_reset
->reset_success_count
++;
1625 force_reset
->last_force_reset_jiffies
= jiffies
;
1626 IWL_DEBUG_INFO(priv
, "perform force reset (%d)\n", mode
);
1629 iwl_force_rf_reset(priv
);
1633 * if the request is from external(ex: debugfs),
1634 * then always perform the request in regardless the module
1636 * if the request is from internal (uCode error or driver
1637 * detect failure), then fw_restart module parameter
1638 * need to be check before performing firmware reload
1640 if (!external
&& !iwlagn_mod_params
.restart_fw
) {
1641 IWL_DEBUG_INFO(priv
, "Cancel firmware reload based on "
1642 "module parameter setting\n");
1645 IWL_ERR(priv
, "On demand firmware reload\n");
1646 iwlagn_fw_error(priv
, true);
1652 int iwlagn_mac_change_interface(struct ieee80211_hw
*hw
,
1653 struct ieee80211_vif
*vif
,
1654 enum nl80211_iftype newtype
, bool newp2p
)
1656 struct iwl_priv
*priv
= hw
->priv
;
1657 struct iwl_rxon_context
*ctx
= iwl_rxon_ctx_from_vif(vif
);
1658 struct iwl_rxon_context
*bss_ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
1659 struct iwl_rxon_context
*tmp
;
1660 enum nl80211_iftype newviftype
= newtype
;
1661 u32 interface_modes
;
1664 IWL_DEBUG_MAC80211(priv
, "enter\n");
1666 newtype
= ieee80211_iftype_p2p(newtype
, newp2p
);
1668 mutex_lock(&priv
->shrd
->mutex
);
1670 if (!ctx
->vif
|| !iwl_is_ready_rf(priv
->shrd
)) {
1672 * Huh? But wait ... this can maybe happen when
1673 * we're in the middle of a firmware restart!
1679 interface_modes
= ctx
->interface_modes
| ctx
->exclusive_interface_modes
;
1681 if (!(interface_modes
& BIT(newtype
))) {
1687 * Refuse a change that should be done by moving from the PAN
1688 * context to the BSS context instead, if the BSS context is
1689 * available and can support the new interface type.
1691 if (ctx
->ctxid
== IWL_RXON_CTX_PAN
&& !bss_ctx
->vif
&&
1692 (bss_ctx
->interface_modes
& BIT(newtype
) ||
1693 bss_ctx
->exclusive_interface_modes
& BIT(newtype
))) {
1694 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
1699 if (ctx
->exclusive_interface_modes
& BIT(newtype
)) {
1700 for_each_context(priv
, tmp
) {
1708 * The current mode switch would be exclusive, but
1709 * another context is active ... refuse the switch.
1717 iwl_teardown_interface(priv
, vif
, true);
1718 vif
->type
= newviftype
;
1720 err
= iwl_setup_interface(priv
, ctx
);
1723 * We've switched internally, but submitting to the
1724 * device may have failed for some reason. Mask this
1725 * error, because otherwise mac80211 will not switch
1726 * (and set the interface type back) and we'll be
1727 * out of sync with it.
1732 mutex_unlock(&priv
->shrd
->mutex
);
1733 IWL_DEBUG_MAC80211(priv
, "leave\n");
1738 int iwl_cmd_echo_test(struct iwl_priv
*priv
)
1741 struct iwl_host_cmd cmd
= {
1746 ret
= iwl_trans_send_cmd(trans(priv
), &cmd
);
1748 IWL_ERR(priv
, "echo testing fail: 0X%x\n", ret
);
1750 IWL_DEBUG_INFO(priv
, "echo testing pass\n");
1754 static inline int iwl_check_stuck_queue(struct iwl_priv
*priv
, int txq
)
1756 if (iwl_trans_check_stuck_queue(trans(priv
), txq
)) {
1758 if (txq
== priv
->shrd
->cmd_queue
) {
1760 * validate command queue still working
1761 * by sending "ECHO" command
1763 if (!iwl_cmd_echo_test(priv
))
1766 IWL_DEBUG_HC(priv
, "echo testing fail\n");
1768 ret
= iwl_force_reset(priv
, IWL_FW_RESET
, false);
1769 return (ret
== -EAGAIN
) ? 0 : 1;
1775 * Making watchdog tick be a quarter of timeout assure we will
1776 * discover the queue hung between timeout and 1.25*timeout
1778 #define IWL_WD_TICK(timeout) ((timeout) / 4)
1781 * Watchdog timer callback, we check each tx queue for stuck, if if hung
1782 * we reset the firmware. If everything is fine just rearm the timer.
1784 void iwl_bg_watchdog(unsigned long data
)
1786 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
1788 unsigned long timeout
;
1790 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
1793 if (iwl_is_rfkill(priv
->shrd
))
1796 timeout
= priv
->cfg
->base_params
->wd_timeout
;
1800 /* monitor and check for stuck cmd queue */
1801 if (iwl_check_stuck_queue(priv
, priv
->shrd
->cmd_queue
))
1804 /* monitor and check for other stuck queues */
1805 if (iwl_is_any_associated(priv
)) {
1806 for (cnt
= 0; cnt
< hw_params(priv
).max_txq_num
; cnt
++) {
1807 /* skip as we already checked the command queue */
1808 if (cnt
== priv
->shrd
->cmd_queue
)
1810 if (iwl_check_stuck_queue(priv
, cnt
))
1815 mod_timer(&priv
->watchdog
, jiffies
+
1816 msecs_to_jiffies(IWL_WD_TICK(timeout
)));
1819 void iwl_setup_watchdog(struct iwl_priv
*priv
)
1821 unsigned int timeout
= priv
->cfg
->base_params
->wd_timeout
;
1823 if (timeout
&& !iwlagn_mod_params
.wd_disable
)
1824 mod_timer(&priv
->watchdog
,
1825 jiffies
+ msecs_to_jiffies(IWL_WD_TICK(timeout
)));
1827 del_timer(&priv
->watchdog
);
1831 * iwl_beacon_time_mask_low - mask of lower 32 bit of beacon time
1832 * @priv -- pointer to iwl_priv data structure
1833 * @tsf_bits -- number of bits need to shift for masking)
1835 static inline u32
iwl_beacon_time_mask_low(struct iwl_priv
*priv
,
1838 return (1 << tsf_bits
) - 1;
1842 * iwl_beacon_time_mask_high - mask of higher 32 bit of beacon time
1843 * @priv -- pointer to iwl_priv data structure
1844 * @tsf_bits -- number of bits need to shift for masking)
1846 static inline u32
iwl_beacon_time_mask_high(struct iwl_priv
*priv
,
1849 return ((1 << (32 - tsf_bits
)) - 1) << tsf_bits
;
1853 * extended beacon time format
1854 * time in usec will be changed into a 32-bit value in extended:internal format
1855 * the extended part is the beacon counts
1856 * the internal part is the time in usec within one beacon interval
1858 u32
iwl_usecs_to_beacons(struct iwl_priv
*priv
, u32 usec
, u32 beacon_interval
)
1862 u32 interval
= beacon_interval
* TIME_UNIT
;
1864 if (!interval
|| !usec
)
1867 quot
= (usec
/ interval
) &
1868 (iwl_beacon_time_mask_high(priv
, IWLAGN_EXT_BEACON_TIME_POS
) >>
1869 IWLAGN_EXT_BEACON_TIME_POS
);
1870 rem
= (usec
% interval
) & iwl_beacon_time_mask_low(priv
,
1871 IWLAGN_EXT_BEACON_TIME_POS
);
1873 return (quot
<< IWLAGN_EXT_BEACON_TIME_POS
) + rem
;
1876 /* base is usually what we get from ucode with each received frame,
1877 * the same as HW timer counter counting down
1879 __le32
iwl_add_beacon_time(struct iwl_priv
*priv
, u32 base
,
1880 u32 addon
, u32 beacon_interval
)
1882 u32 base_low
= base
& iwl_beacon_time_mask_low(priv
,
1883 IWLAGN_EXT_BEACON_TIME_POS
);
1884 u32 addon_low
= addon
& iwl_beacon_time_mask_low(priv
,
1885 IWLAGN_EXT_BEACON_TIME_POS
);
1886 u32 interval
= beacon_interval
* TIME_UNIT
;
1887 u32 res
= (base
& iwl_beacon_time_mask_high(priv
,
1888 IWLAGN_EXT_BEACON_TIME_POS
)) +
1889 (addon
& iwl_beacon_time_mask_high(priv
,
1890 IWLAGN_EXT_BEACON_TIME_POS
));
1892 if (base_low
> addon_low
)
1893 res
+= base_low
- addon_low
;
1894 else if (base_low
< addon_low
) {
1895 res
+= interval
+ base_low
- addon_low
;
1896 res
+= (1 << IWLAGN_EXT_BEACON_TIME_POS
);
1898 res
+= (1 << IWLAGN_EXT_BEACON_TIME_POS
);
1900 return cpu_to_le32(res
);
1903 void iwl_start_tx_ba_trans_ready(struct iwl_priv
*priv
,
1904 enum iwl_rxon_context_id ctx
,
1907 struct ieee80211_vif
*vif
;
1908 u8
*addr
= priv
->stations
[sta_id
].sta
.sta
.addr
;
1910 if (ctx
== NUM_IWL_RXON_CTX
)
1911 ctx
= priv
->stations
[sta_id
].ctxid
;
1912 vif
= priv
->contexts
[ctx
].vif
;
1914 ieee80211_start_tx_ba_cb_irqsafe(vif
, addr
, tid
);
1917 void iwl_stop_tx_ba_trans_ready(struct iwl_priv
*priv
,
1918 enum iwl_rxon_context_id ctx
,
1921 struct ieee80211_vif
*vif
;
1922 u8
*addr
= priv
->stations
[sta_id
].sta
.sta
.addr
;
1924 if (ctx
== NUM_IWL_RXON_CTX
)
1925 ctx
= priv
->stations
[sta_id
].ctxid
;
1926 vif
= priv
->contexts
[ctx
].vif
;
1928 ieee80211_stop_tx_ba_cb_irqsafe(vif
, addr
, tid
);
1931 void iwl_set_hw_rfkill_state(struct iwl_priv
*priv
, bool state
)
1933 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
, state
);
1936 void iwl_nic_config(struct iwl_priv
*priv
)
1938 priv
->cfg
->lib
->nic_config(priv
);
1942 void iwl_free_skb(struct iwl_priv
*priv
, struct sk_buff
*skb
)
1944 struct ieee80211_tx_info
*info
;
1946 info
= IEEE80211_SKB_CB(skb
);
1947 kmem_cache_free(priv
->tx_cmd_pool
, (info
->driver_data
[1]));
1948 dev_kfree_skb_any(skb
);
1951 void iwl_stop_sw_queue(struct iwl_priv
*priv
, u8 ac
)
1953 ieee80211_stop_queue(priv
->hw
, ac
);
1956 void iwl_wake_sw_queue(struct iwl_priv
*priv
, u8 ac
)
1958 ieee80211_wake_queue(priv
->hw
, ac
);