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"
38 #include "iwl-debug.h"
41 #include "iwl-power.h"
43 #include "iwl-helpers.h"
46 MODULE_DESCRIPTION("iwl-legacy: common functions for 3945 and 4965");
47 MODULE_VERSION(IWLWIFI_VERSION
);
48 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
49 MODULE_LICENSE("GPL");
52 * set bt_coex_active to true, uCode will do kill/defer
53 * every time the priority line is asserted (BT is sending signals on the
54 * priority line in the PCIx).
55 * set bt_coex_active to false, uCode will ignore the BT activity and
56 * perform the normal operation
58 * User might experience transmit issue on some platform due to WiFi/BT
59 * co-exist problem. The possible behaviors are:
60 * Able to scan and finding all the available AP
61 * Not able to associate with any AP
62 * On those platforms, WiFi communication can be restored by set
63 * "bt_coex_active" module parameter to "false"
65 * default: bt_coex_active = true (BT_COEX_ENABLE)
67 static bool bt_coex_active
= true;
68 module_param(bt_coex_active
, bool, S_IRUGO
);
69 MODULE_PARM_DESC(bt_coex_active
, "enable wifi/bluetooth co-exist");
72 EXPORT_SYMBOL(il_debug_level
);
74 const u8 il_bcast_addr
[ETH_ALEN
] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
75 EXPORT_SYMBOL(il_bcast_addr
);
78 /* This function both allocates and initializes hw and il. */
79 struct ieee80211_hw
*il_alloc_all(struct il_cfg
*cfg
)
82 /* mac80211 allocates memory for this device instance, including
83 * space for this driver's ilate structure */
84 struct ieee80211_hw
*hw
;
86 hw
= ieee80211_alloc_hw(sizeof(struct il_priv
),
87 cfg
->ops
->ieee80211_ops
);
89 pr_err("%s: Can not allocate network device\n",
100 EXPORT_SYMBOL(il_alloc_all
);
102 #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
103 #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
104 static void il_init_ht_hw_capab(const struct il_priv
*il
,
105 struct ieee80211_sta_ht_cap
*ht_info
,
106 enum ieee80211_band band
)
108 u16 max_bit_rate
= 0;
109 u8 rx_chains_num
= il
->hw_params
.rx_chains_num
;
110 u8 tx_chains_num
= il
->hw_params
.tx_chains_num
;
113 memset(&ht_info
->mcs
, 0, sizeof(ht_info
->mcs
));
115 ht_info
->ht_supported
= true;
117 ht_info
->cap
|= IEEE80211_HT_CAP_SGI_20
;
118 max_bit_rate
= MAX_BIT_RATE_20_MHZ
;
119 if (il
->hw_params
.ht40_channel
& BIT(band
)) {
120 ht_info
->cap
|= IEEE80211_HT_CAP_SUP_WIDTH_20_40
;
121 ht_info
->cap
|= IEEE80211_HT_CAP_SGI_40
;
122 ht_info
->mcs
.rx_mask
[4] = 0x01;
123 max_bit_rate
= MAX_BIT_RATE_40_MHZ
;
126 if (il
->cfg
->mod_params
->amsdu_size_8K
)
127 ht_info
->cap
|= IEEE80211_HT_CAP_MAX_AMSDU
;
129 ht_info
->ampdu_factor
= CFG_HT_RX_AMPDU_FACTOR_DEF
;
130 ht_info
->ampdu_density
= CFG_HT_MPDU_DENSITY_DEF
;
132 ht_info
->mcs
.rx_mask
[0] = 0xFF;
133 if (rx_chains_num
>= 2)
134 ht_info
->mcs
.rx_mask
[1] = 0xFF;
135 if (rx_chains_num
>= 3)
136 ht_info
->mcs
.rx_mask
[2] = 0xFF;
138 /* Highest supported Rx data rate */
139 max_bit_rate
*= rx_chains_num
;
140 WARN_ON(max_bit_rate
& ~IEEE80211_HT_MCS_RX_HIGHEST_MASK
);
141 ht_info
->mcs
.rx_highest
= cpu_to_le16(max_bit_rate
);
143 /* Tx MCS capabilities */
144 ht_info
->mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
145 if (tx_chains_num
!= rx_chains_num
) {
146 ht_info
->mcs
.tx_params
|= IEEE80211_HT_MCS_TX_RX_DIFF
;
147 ht_info
->mcs
.tx_params
|= ((tx_chains_num
- 1) <<
148 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
);
153 * il_init_geos - Initialize mac80211's geo/channel info based from eeprom
155 int il_init_geos(struct il_priv
*il
)
157 struct il_channel_info
*ch
;
158 struct ieee80211_supported_band
*sband
;
159 struct ieee80211_channel
*channels
;
160 struct ieee80211_channel
*geo_ch
;
161 struct ieee80211_rate
*rates
;
165 if (il
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
166 il
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
167 D_INFO("Geography modes already initialized.\n");
168 set_bit(STATUS_GEO_CONFIGURED
, &il
->status
);
172 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
173 il
->channel_count
, GFP_KERNEL
);
177 rates
= kzalloc((sizeof(struct ieee80211_rate
) * IL_RATE_COUNT_LEGACY
),
184 /* 5.2GHz channels start after the 2.4GHz channels */
185 sband
= &il
->bands
[IEEE80211_BAND_5GHZ
];
186 sband
->channels
= &channels
[ARRAY_SIZE(il_eeprom_band_1
)];
188 sband
->bitrates
= &rates
[IL_FIRST_OFDM_RATE
];
189 sband
->n_bitrates
= IL_RATE_COUNT_LEGACY
- IL_FIRST_OFDM_RATE
;
191 if (il
->cfg
->sku
& IL_SKU_N
)
192 il_init_ht_hw_capab(il
, &sband
->ht_cap
,
193 IEEE80211_BAND_5GHZ
);
195 sband
= &il
->bands
[IEEE80211_BAND_2GHZ
];
196 sband
->channels
= channels
;
198 sband
->bitrates
= rates
;
199 sband
->n_bitrates
= IL_RATE_COUNT_LEGACY
;
201 if (il
->cfg
->sku
& IL_SKU_N
)
202 il_init_ht_hw_capab(il
, &sband
->ht_cap
,
203 IEEE80211_BAND_2GHZ
);
205 il
->ieee_channels
= channels
;
206 il
->ieee_rates
= rates
;
208 for (i
= 0; i
< il
->channel_count
; i
++) {
209 ch
= &il
->channel_info
[i
];
211 if (!il_is_channel_valid(ch
))
214 sband
= &il
->bands
[ch
->band
];
216 geo_ch
= &sband
->channels
[sband
->n_channels
++];
218 geo_ch
->center_freq
=
219 ieee80211_channel_to_frequency(ch
->channel
, ch
->band
);
220 geo_ch
->max_power
= ch
->max_power_avg
;
221 geo_ch
->max_antenna_gain
= 0xff;
222 geo_ch
->hw_value
= ch
->channel
;
224 if (il_is_channel_valid(ch
)) {
225 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
226 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
228 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
229 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
231 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
232 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
234 geo_ch
->flags
|= ch
->ht40_extension_channel
;
236 if (ch
->max_power_avg
> max_tx_power
)
237 max_tx_power
= ch
->max_power_avg
;
239 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
242 D_INFO("Channel %d Freq=%d[%sGHz] %s flag=0x%X\n",
243 ch
->channel
, geo_ch
->center_freq
,
244 il_is_channel_a_band(ch
) ? "5.2" : "2.4",
245 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
246 "restricted" : "valid",
250 il
->tx_power_device_lmt
= max_tx_power
;
251 il
->tx_power_user_lmt
= max_tx_power
;
252 il
->tx_power_next
= max_tx_power
;
254 if (il
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0 &&
255 (il
->cfg
->sku
& IL_SKU_A
)) {
256 IL_INFO("Incorrectly detected BG card as ABG. "
257 "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
259 il
->pci_dev
->subsystem_device
);
260 il
->cfg
->sku
&= ~IL_SKU_A
;
263 IL_INFO("Tunable channels: %d 802.11bg, %d 802.11a channels\n",
264 il
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
265 il
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
267 set_bit(STATUS_GEO_CONFIGURED
, &il
->status
);
271 EXPORT_SYMBOL(il_init_geos
);
274 * il_free_geos - undo allocations in il_init_geos
276 void il_free_geos(struct il_priv
*il
)
278 kfree(il
->ieee_channels
);
279 kfree(il
->ieee_rates
);
280 clear_bit(STATUS_GEO_CONFIGURED
, &il
->status
);
282 EXPORT_SYMBOL(il_free_geos
);
284 static bool il_is_channel_extension(struct il_priv
*il
,
285 enum ieee80211_band band
,
286 u16 channel
, u8 extension_chan_offset
)
288 const struct il_channel_info
*ch_info
;
290 ch_info
= il_get_channel_info(il
, band
, channel
);
291 if (!il_is_channel_valid(ch_info
))
294 if (extension_chan_offset
== IEEE80211_HT_PARAM_CHA_SEC_ABOVE
)
295 return !(ch_info
->ht40_extension_channel
&
296 IEEE80211_CHAN_NO_HT40PLUS
);
297 else if (extension_chan_offset
== IEEE80211_HT_PARAM_CHA_SEC_BELOW
)
298 return !(ch_info
->ht40_extension_channel
&
299 IEEE80211_CHAN_NO_HT40MINUS
);
304 bool il_is_ht40_tx_allowed(struct il_priv
*il
,
305 struct il_rxon_context
*ctx
,
306 struct ieee80211_sta_ht_cap
*ht_cap
)
308 if (!ctx
->ht
.enabled
|| !ctx
->ht
.is_40mhz
)
312 * We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40
313 * the bit will not set if it is pure 40MHz case
315 if (ht_cap
&& !ht_cap
->ht_supported
)
318 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
319 if (il
->disable_ht40
)
323 return il_is_channel_extension(il
, il
->band
,
324 le16_to_cpu(ctx
->staging
.channel
),
325 ctx
->ht
.extension_chan_offset
);
327 EXPORT_SYMBOL(il_is_ht40_tx_allowed
);
329 static u16
il_adjust_beacon_interval(u16 beacon_val
, u16 max_beacon_val
)
335 * If mac80211 hasn't given us a beacon interval, program
336 * the default into the device.
339 return DEFAULT_BEACON_INTERVAL
;
342 * If the beacon interval we obtained from the peer
343 * is too large, we'll have to wake up more often
344 * (and in IBSS case, we'll beacon too much)
346 * For example, if max_beacon_val is 4096, and the
347 * requested beacon interval is 7000, we'll have to
348 * use 3500 to be able to wake up on the beacons.
350 * This could badly influence beacon detection stats.
353 beacon_factor
= (beacon_val
+ max_beacon_val
) / max_beacon_val
;
354 new_val
= beacon_val
/ beacon_factor
;
357 new_val
= max_beacon_val
;
363 il_send_rxon_timing(struct il_priv
*il
, struct il_rxon_context
*ctx
)
366 s32 interval_tm
, rem
;
367 struct ieee80211_conf
*conf
= NULL
;
369 struct ieee80211_vif
*vif
= ctx
->vif
;
371 conf
= il_ieee80211_get_hw_conf(il
->hw
);
373 lockdep_assert_held(&il
->mutex
);
375 memset(&ctx
->timing
, 0, sizeof(struct il_rxon_time_cmd
));
377 ctx
->timing
.timestamp
= cpu_to_le64(il
->timestamp
);
378 ctx
->timing
.listen_interval
= cpu_to_le16(conf
->listen_interval
);
380 beacon_int
= vif
? vif
->bss_conf
.beacon_int
: 0;
383 * TODO: For IBSS we need to get atim_window from mac80211,
384 * for now just always use 0
386 ctx
->timing
.atim_window
= 0;
388 beacon_int
= il_adjust_beacon_interval(beacon_int
,
389 il
->hw_params
.max_beacon_itrvl
* TIME_UNIT
);
390 ctx
->timing
.beacon_interval
= cpu_to_le16(beacon_int
);
392 tsf
= il
->timestamp
; /* tsf is modifed by do_div: copy it */
393 interval_tm
= beacon_int
* TIME_UNIT
;
394 rem
= do_div(tsf
, interval_tm
);
395 ctx
->timing
.beacon_init_val
= cpu_to_le32(interval_tm
- rem
);
397 ctx
->timing
.dtim_period
= vif
? (vif
->bss_conf
.dtim_period
?: 1) : 1;
400 "beacon interval %d beacon timer %d beacon tim %d\n",
401 le16_to_cpu(ctx
->timing
.beacon_interval
),
402 le32_to_cpu(ctx
->timing
.beacon_init_val
),
403 le16_to_cpu(ctx
->timing
.atim_window
));
405 return il_send_cmd_pdu(il
, ctx
->rxon_timing_cmd
,
406 sizeof(ctx
->timing
), &ctx
->timing
);
408 EXPORT_SYMBOL(il_send_rxon_timing
);
411 il_set_rxon_hwcrypto(struct il_priv
*il
,
412 struct il_rxon_context
*ctx
,
415 struct il_rxon_cmd
*rxon
= &ctx
->staging
;
418 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
420 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
423 EXPORT_SYMBOL(il_set_rxon_hwcrypto
);
425 /* validate RXON structure is valid */
427 il_check_rxon_cmd(struct il_priv
*il
, struct il_rxon_context
*ctx
)
429 struct il_rxon_cmd
*rxon
= &ctx
->staging
;
432 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
433 if (rxon
->flags
& RXON_FLG_TGJ_NARROW_BAND_MSK
) {
434 IL_WARN("check 2.4G: wrong narrow\n");
437 if (rxon
->flags
& RXON_FLG_RADAR_DETECT_MSK
) {
438 IL_WARN("check 2.4G: wrong radar\n");
442 if (!(rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
)) {
443 IL_WARN("check 5.2G: not short slot!\n");
446 if (rxon
->flags
& RXON_FLG_CCK_MSK
) {
447 IL_WARN("check 5.2G: CCK!\n");
451 if ((rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1) {
452 IL_WARN("mac/bssid mcast!\n");
456 /* make sure basic rates 6Mbps and 1Mbps are supported */
457 if ((rxon
->ofdm_basic_rates
& IL_RATE_6M_MASK
) == 0 &&
458 (rxon
->cck_basic_rates
& IL_RATE_1M_MASK
) == 0) {
459 IL_WARN("neither 1 nor 6 are basic\n");
463 if (le16_to_cpu(rxon
->assoc_id
) > 2007) {
464 IL_WARN("aid > 2007\n");
468 if ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
469 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
)) {
470 IL_WARN("CCK and short slot\n");
474 if ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
475 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
)) {
476 IL_WARN("CCK and auto detect");
480 if ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
481 RXON_FLG_TGG_PROTECT_MSK
)) ==
482 RXON_FLG_TGG_PROTECT_MSK
) {
483 IL_WARN("TGg but no auto-detect\n");
488 IL_WARN("Tuning to channel %d\n",
489 le16_to_cpu(rxon
->channel
));
492 IL_ERR("Invalid RXON\n");
497 EXPORT_SYMBOL(il_check_rxon_cmd
);
500 * il_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
501 * @il: staging_rxon is compared to active_rxon
503 * If the RXON structure is changing enough to require a new tune,
504 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
505 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
507 int il_full_rxon_required(struct il_priv
*il
,
508 struct il_rxon_context
*ctx
)
510 const struct il_rxon_cmd
*staging
= &ctx
->staging
;
511 const struct il_rxon_cmd
*active
= &ctx
->active
;
515 D_INFO("need full RXON - " #cond "\n"); \
519 #define CHK_NEQ(c1, c2) \
520 if ((c1) != (c2)) { \
521 D_INFO("need full RXON - " \
522 #c1 " != " #c2 " - %d != %d\n", \
527 /* These items are only settable from the full RXON command */
528 CHK(!il_is_associated_ctx(ctx
));
529 CHK(compare_ether_addr(staging
->bssid_addr
, active
->bssid_addr
));
530 CHK(compare_ether_addr(staging
->node_addr
, active
->node_addr
));
531 CHK(compare_ether_addr(staging
->wlap_bssid_addr
,
532 active
->wlap_bssid_addr
));
533 CHK_NEQ(staging
->dev_type
, active
->dev_type
);
534 CHK_NEQ(staging
->channel
, active
->channel
);
535 CHK_NEQ(staging
->air_propagation
, active
->air_propagation
);
536 CHK_NEQ(staging
->ofdm_ht_single_stream_basic_rates
,
537 active
->ofdm_ht_single_stream_basic_rates
);
538 CHK_NEQ(staging
->ofdm_ht_dual_stream_basic_rates
,
539 active
->ofdm_ht_dual_stream_basic_rates
);
540 CHK_NEQ(staging
->assoc_id
, active
->assoc_id
);
542 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
543 * be updated with the RXON_ASSOC command -- however only some
544 * flag transitions are allowed using RXON_ASSOC */
546 /* Check if we are not switching bands */
547 CHK_NEQ(staging
->flags
& RXON_FLG_BAND_24G_MSK
,
548 active
->flags
& RXON_FLG_BAND_24G_MSK
);
550 /* Check if we are switching association toggle */
551 CHK_NEQ(staging
->filter_flags
& RXON_FILTER_ASSOC_MSK
,
552 active
->filter_flags
& RXON_FILTER_ASSOC_MSK
);
559 EXPORT_SYMBOL(il_full_rxon_required
);
561 u8
il_get_lowest_plcp(struct il_priv
*il
,
562 struct il_rxon_context
*ctx
)
565 * Assign the lowest rate -- should really get this from
566 * the beacon skb from mac80211.
568 if (ctx
->staging
.flags
& RXON_FLG_BAND_24G_MSK
)
569 return IL_RATE_1M_PLCP
;
571 return IL_RATE_6M_PLCP
;
573 EXPORT_SYMBOL(il_get_lowest_plcp
);
575 static void _il_set_rxon_ht(struct il_priv
*il
,
576 struct il_ht_config
*ht_conf
,
577 struct il_rxon_context
*ctx
)
579 struct il_rxon_cmd
*rxon
= &ctx
->staging
;
581 if (!ctx
->ht
.enabled
) {
582 rxon
->flags
&= ~(RXON_FLG_CHANNEL_MODE_MSK
|
583 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
|
584 RXON_FLG_HT40_PROT_MSK
|
585 RXON_FLG_HT_PROT_MSK
);
589 rxon
->flags
|= cpu_to_le32(ctx
->ht
.protection
<<
590 RXON_FLG_HT_OPERATING_MODE_POS
);
592 /* Set up channel bandwidth:
593 * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */
594 /* clear the HT channel mode before set the mode */
595 rxon
->flags
&= ~(RXON_FLG_CHANNEL_MODE_MSK
|
596 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
);
597 if (il_is_ht40_tx_allowed(il
, ctx
, NULL
)) {
599 if (ctx
->ht
.protection
==
600 IEEE80211_HT_OP_MODE_PROTECTION_20MHZ
) {
601 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_PURE_40
;
602 /* Note: control channel is opposite of extension channel */
603 switch (ctx
->ht
.extension_chan_offset
) {
604 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE
:
606 ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
;
608 case IEEE80211_HT_PARAM_CHA_SEC_BELOW
:
610 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
;
614 /* Note: control channel is opposite of extension channel */
615 switch (ctx
->ht
.extension_chan_offset
) {
616 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE
:
618 ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
);
619 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_MIXED
;
621 case IEEE80211_HT_PARAM_CHA_SEC_BELOW
:
623 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
;
624 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_MIXED
;
626 case IEEE80211_HT_PARAM_CHA_SEC_NONE
:
628 /* channel location only valid if in Mixed mode */
630 "invalid extension channel offset\n");
635 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_LEGACY
;
638 if (il
->cfg
->ops
->hcmd
->set_rxon_chain
)
639 il
->cfg
->ops
->hcmd
->set_rxon_chain(il
, ctx
);
641 D_ASSOC("rxon flags 0x%X operation mode :0x%X "
642 "extension channel offset 0x%x\n",
643 le32_to_cpu(rxon
->flags
), ctx
->ht
.protection
,
644 ctx
->ht
.extension_chan_offset
);
647 void il_set_rxon_ht(struct il_priv
*il
, struct il_ht_config
*ht_conf
)
649 struct il_rxon_context
*ctx
;
651 for_each_context(il
, ctx
)
652 _il_set_rxon_ht(il
, ht_conf
, ctx
);
654 EXPORT_SYMBOL(il_set_rxon_ht
);
656 /* Return valid, unused, channel for a passive scan to reset the RF */
657 u8
il_get_single_channel_number(struct il_priv
*il
,
658 enum ieee80211_band band
)
660 const struct il_channel_info
*ch_info
;
664 struct il_rxon_context
*ctx
;
666 if (band
== IEEE80211_BAND_5GHZ
) {
668 max
= il
->channel_count
;
674 for (i
= min
; i
< max
; i
++) {
677 for_each_context(il
, ctx
) {
678 busy
= il
->channel_info
[i
].channel
==
679 le16_to_cpu(ctx
->staging
.channel
);
687 channel
= il
->channel_info
[i
].channel
;
688 ch_info
= il_get_channel_info(il
, band
, channel
);
689 if (il_is_channel_valid(ch_info
))
695 EXPORT_SYMBOL(il_get_single_channel_number
);
698 * il_set_rxon_channel - Set the band and channel values in staging RXON
699 * @ch: requested channel as a pointer to struct ieee80211_channel
701 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
702 * in the staging RXON flag structure based on the ch->band
705 il_set_rxon_channel(struct il_priv
*il
, struct ieee80211_channel
*ch
,
706 struct il_rxon_context
*ctx
)
708 enum ieee80211_band band
= ch
->band
;
709 u16 channel
= ch
->hw_value
;
711 if (le16_to_cpu(ctx
->staging
.channel
) == channel
&& il
->band
== band
)
714 ctx
->staging
.channel
= cpu_to_le16(channel
);
715 if (band
== IEEE80211_BAND_5GHZ
)
716 ctx
->staging
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
718 ctx
->staging
.flags
|= RXON_FLG_BAND_24G_MSK
;
722 D_INFO("Staging channel set to %d [%d]\n", channel
, band
);
726 EXPORT_SYMBOL(il_set_rxon_channel
);
728 void il_set_flags_for_band(struct il_priv
*il
,
729 struct il_rxon_context
*ctx
,
730 enum ieee80211_band band
,
731 struct ieee80211_vif
*vif
)
733 if (band
== IEEE80211_BAND_5GHZ
) {
734 ctx
->staging
.flags
&=
735 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
737 ctx
->staging
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
739 /* Copied from il_post_associate() */
740 if (vif
&& vif
->bss_conf
.use_short_slot
)
741 ctx
->staging
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
743 ctx
->staging
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
745 ctx
->staging
.flags
|= RXON_FLG_BAND_24G_MSK
;
746 ctx
->staging
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
747 ctx
->staging
.flags
&= ~RXON_FLG_CCK_MSK
;
750 EXPORT_SYMBOL(il_set_flags_for_band
);
753 * initialize rxon structure with default values from eeprom
755 void il_connection_init_rx_config(struct il_priv
*il
,
756 struct il_rxon_context
*ctx
)
758 const struct il_channel_info
*ch_info
;
760 memset(&ctx
->staging
, 0, sizeof(ctx
->staging
));
763 ctx
->staging
.dev_type
= ctx
->unused_devtype
;
765 switch (ctx
->vif
->type
) {
767 case NL80211_IFTYPE_STATION
:
768 ctx
->staging
.dev_type
= ctx
->station_devtype
;
769 ctx
->staging
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
772 case NL80211_IFTYPE_ADHOC
:
773 ctx
->staging
.dev_type
= ctx
->ibss_devtype
;
774 ctx
->staging
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
775 ctx
->staging
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
776 RXON_FILTER_ACCEPT_GRP_MSK
;
780 IL_ERR("Unsupported interface type %d\n",
786 /* TODO: Figure out when short_preamble would be set and cache from
788 if (!hw_to_local(il
->hw
)->short_preamble
)
789 ctx
->staging
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
791 ctx
->staging
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
794 ch_info
= il_get_channel_info(il
, il
->band
,
795 le16_to_cpu(ctx
->active
.channel
));
798 ch_info
= &il
->channel_info
[0];
800 ctx
->staging
.channel
= cpu_to_le16(ch_info
->channel
);
801 il
->band
= ch_info
->band
;
803 il_set_flags_for_band(il
, ctx
, il
->band
, ctx
->vif
);
805 ctx
->staging
.ofdm_basic_rates
=
806 (IL_OFDM_RATES_MASK
>> IL_FIRST_OFDM_RATE
) & 0xFF;
807 ctx
->staging
.cck_basic_rates
=
808 (IL_CCK_RATES_MASK
>> IL_FIRST_CCK_RATE
) & 0xF;
810 /* clear both MIX and PURE40 mode flag */
811 ctx
->staging
.flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED
|
812 RXON_FLG_CHANNEL_MODE_PURE_40
);
814 memcpy(ctx
->staging
.node_addr
, ctx
->vif
->addr
, ETH_ALEN
);
816 ctx
->staging
.ofdm_ht_single_stream_basic_rates
= 0xff;
817 ctx
->staging
.ofdm_ht_dual_stream_basic_rates
= 0xff;
819 EXPORT_SYMBOL(il_connection_init_rx_config
);
821 void il_set_rate(struct il_priv
*il
)
823 const struct ieee80211_supported_band
*hw
= NULL
;
824 struct ieee80211_rate
*rate
;
825 struct il_rxon_context
*ctx
;
828 hw
= il_get_hw_mode(il
, il
->band
);
830 IL_ERR("Failed to set rate: unable to get hw mode\n");
836 for (i
= 0; i
< hw
->n_bitrates
; i
++) {
837 rate
= &(hw
->bitrates
[i
]);
838 if (rate
->hw_value
< IL_RATE_COUNT_LEGACY
)
839 il
->active_rate
|= (1 << rate
->hw_value
);
842 D_RATE("Set active_rate = %0x\n", il
->active_rate
);
844 for_each_context(il
, ctx
) {
845 ctx
->staging
.cck_basic_rates
=
846 (IL_CCK_BASIC_RATES_MASK
>> IL_FIRST_CCK_RATE
) & 0xF;
848 ctx
->staging
.ofdm_basic_rates
=
849 (IL_OFDM_BASIC_RATES_MASK
>> IL_FIRST_OFDM_RATE
) & 0xFF;
852 EXPORT_SYMBOL(il_set_rate
);
854 void il_chswitch_done(struct il_priv
*il
, bool is_success
)
856 struct il_rxon_context
*ctx
= &il
->contexts
[IL_RXON_CTX_BSS
];
858 if (test_bit(STATUS_EXIT_PENDING
, &il
->status
))
861 if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING
, &il
->status
))
862 ieee80211_chswitch_done(ctx
->vif
, is_success
);
864 EXPORT_SYMBOL(il_chswitch_done
);
866 void il_rx_csa(struct il_priv
*il
, struct il_rx_mem_buffer
*rxb
)
868 struct il_rx_packet
*pkt
= rxb_addr(rxb
);
869 struct il_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
871 struct il_rxon_context
*ctx
= &il
->contexts
[IL_RXON_CTX_BSS
];
872 struct il_rxon_cmd
*rxon
= (void *)&ctx
->active
;
874 if (!test_bit(STATUS_CHANNEL_SWITCH_PENDING
, &il
->status
))
877 if (!le32_to_cpu(csa
->status
) && csa
->channel
== il
->switch_channel
) {
878 rxon
->channel
= csa
->channel
;
879 ctx
->staging
.channel
= csa
->channel
;
880 D_11H("CSA notif: channel %d\n",
881 le16_to_cpu(csa
->channel
));
882 il_chswitch_done(il
, true);
884 IL_ERR("CSA notif (fail) : channel %d\n",
885 le16_to_cpu(csa
->channel
));
886 il_chswitch_done(il
, false);
889 EXPORT_SYMBOL(il_rx_csa
);
891 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
892 void il_print_rx_config_cmd(struct il_priv
*il
,
893 struct il_rxon_context
*ctx
)
895 struct il_rxon_cmd
*rxon
= &ctx
->staging
;
897 D_RADIO("RX CONFIG:\n");
898 il_print_hex_dump(il
, IL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
899 D_RADIO("u16 channel: 0x%x\n",
900 le16_to_cpu(rxon
->channel
));
901 D_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
902 D_RADIO("u32 filter_flags: 0x%08x\n",
903 le32_to_cpu(rxon
->filter_flags
));
904 D_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
905 D_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
906 rxon
->ofdm_basic_rates
);
907 D_RADIO("u8 cck_basic_rates: 0x%02x\n",
908 rxon
->cck_basic_rates
);
909 D_RADIO("u8[6] node_addr: %pM\n", rxon
->node_addr
);
910 D_RADIO("u8[6] bssid_addr: %pM\n", rxon
->bssid_addr
);
911 D_RADIO("u16 assoc_id: 0x%x\n",
912 le16_to_cpu(rxon
->assoc_id
));
914 EXPORT_SYMBOL(il_print_rx_config_cmd
);
917 * il_irq_handle_error - called for HW or SW error interrupt from card
919 void il_irq_handle_error(struct il_priv
*il
)
921 /* Set the FW error flag -- cleared on il_down */
922 set_bit(STATUS_FW_ERROR
, &il
->status
);
924 /* Cancel currently queued command. */
925 clear_bit(STATUS_HCMD_ACTIVE
, &il
->status
);
927 IL_ERR("Loaded firmware version: %s\n",
928 il
->hw
->wiphy
->fw_version
);
930 il
->cfg
->ops
->lib
->dump_nic_error_log(il
);
931 if (il
->cfg
->ops
->lib
->dump_fh
)
932 il
->cfg
->ops
->lib
->dump_fh(il
, NULL
, false);
933 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
934 if (il_get_debug_level(il
) & IL_DL_FW_ERRORS
)
935 il_print_rx_config_cmd(il
,
936 &il
->contexts
[IL_RXON_CTX_BSS
]);
939 wake_up(&il
->wait_command_queue
);
941 /* Keep the restart process from trying to send host
942 * commands by clearing the INIT status bit */
943 clear_bit(STATUS_READY
, &il
->status
);
945 if (!test_bit(STATUS_EXIT_PENDING
, &il
->status
)) {
946 IL_DBG(IL_DL_FW_ERRORS
,
947 "Restarting adapter due to uCode error.\n");
949 if (il
->cfg
->mod_params
->restart_fw
)
950 queue_work(il
->workqueue
, &il
->restart
);
953 EXPORT_SYMBOL(il_irq_handle_error
);
955 static int il_apm_stop_master(struct il_priv
*il
)
959 /* stop device's busmaster DMA activity */
960 il_set_bit(il
, CSR_RESET
, CSR_RESET_REG_FLAG_STOP_MASTER
);
962 ret
= _il_poll_bit(il
, CSR_RESET
, CSR_RESET_REG_FLAG_MASTER_DISABLED
,
963 CSR_RESET_REG_FLAG_MASTER_DISABLED
, 100);
965 IL_WARN("Master Disable Timed Out, 100 usec\n");
967 D_INFO("stop master\n");
972 void il_apm_stop(struct il_priv
*il
)
974 D_INFO("Stop card, put in low power state\n");
976 /* Stop device's DMA activity */
977 il_apm_stop_master(il
);
979 /* Reset the entire device */
980 il_set_bit(il
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
985 * Clear "initialization complete" bit to move adapter from
986 * D0A* (powered-up Active) --> D0U* (Uninitialized) state.
988 il_clear_bit(il
, CSR_GP_CNTRL
,
989 CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
991 EXPORT_SYMBOL(il_apm_stop
);
995 * Start up NIC's basic functionality after it has been reset
996 * (e.g. after platform boot, or shutdown via il_apm_stop())
997 * NOTE: This does not load uCode nor start the embedded processor
999 int il_apm_init(struct il_priv
*il
)
1004 D_INFO("Init card's basic functions\n");
1007 * Use "set_bit" below rather than "write", to preserve any hardware
1008 * bits already set by default after reset.
1011 /* Disable L0S exit timer (platform NMI Work/Around) */
1012 il_set_bit(il
, CSR_GIO_CHICKEN_BITS
,
1013 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER
);
1016 * Disable L0s without affecting L1;
1017 * don't wait for ICH L0s (ICH bug W/A)
1019 il_set_bit(il
, CSR_GIO_CHICKEN_BITS
,
1020 CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX
);
1022 /* Set FH wait threshold to maximum (HW error during stress W/A) */
1023 il_set_bit(il
, CSR_DBG_HPET_MEM_REG
,
1024 CSR_DBG_HPET_MEM_REG_VAL
);
1027 * Enable HAP INTA (interrupt from management bus) to
1028 * wake device's PCI Express link L1a -> L0s
1029 * NOTE: This is no-op for 3945 (non-existent bit)
1031 il_set_bit(il
, CSR_HW_IF_CONFIG_REG
,
1032 CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A
);
1035 * HW bug W/A for instability in PCIe bus L0->L0S->L1 transition.
1036 * Check if BIOS (or OS) enabled L1-ASPM on this device.
1037 * If so (likely), disable L0S, so device moves directly L0->L1;
1038 * costs negligible amount of power savings.
1039 * If not (unlikely), enable L0S, so there is at least some
1040 * power savings, even without L1.
1042 if (il
->cfg
->base_params
->set_l0s
) {
1043 lctl
= il_pcie_link_ctl(il
);
1044 if ((lctl
& PCI_CFG_LINK_CTRL_VAL_L1_EN
) ==
1045 PCI_CFG_LINK_CTRL_VAL_L1_EN
) {
1046 /* L1-ASPM enabled; disable(!) L0S */
1047 il_set_bit(il
, CSR_GIO_REG
,
1048 CSR_GIO_REG_VAL_L0S_ENABLED
);
1049 D_POWER("L1 Enabled; Disabling L0S\n");
1051 /* L1-ASPM disabled; enable(!) L0S */
1052 il_clear_bit(il
, CSR_GIO_REG
,
1053 CSR_GIO_REG_VAL_L0S_ENABLED
);
1054 D_POWER("L1 Disabled; Enabling L0S\n");
1058 /* Configure analog phase-lock-loop before activating to D0A */
1059 if (il
->cfg
->base_params
->pll_cfg_val
)
1060 il_set_bit(il
, CSR_ANA_PLL_CFG
,
1061 il
->cfg
->base_params
->pll_cfg_val
);
1064 * Set "initialization complete" bit to move adapter from
1065 * D0U* --> D0A* (powered-up active) state.
1067 il_set_bit(il
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
1070 * Wait for clock stabilization; once stabilized, access to
1071 * device-internal resources is supported, e.g. il_wr_prph()
1072 * and accesses to uCode SRAM.
1074 ret
= _il_poll_bit(il
, CSR_GP_CNTRL
,
1075 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
,
1076 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
, 25000);
1078 D_INFO("Failed to init the card\n");
1083 * Enable DMA and BSM (if used) clocks, wait for them to stabilize.
1084 * BSM (Boostrap State Machine) is only in 3945 and 4965.
1086 * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits
1087 * do not disable clocks. This preserves any hardware bits already
1088 * set by default in "CLK_CTRL_REG" after reset.
1090 if (il
->cfg
->base_params
->use_bsm
)
1091 il_wr_prph(il
, APMG_CLK_EN_REG
,
1092 APMG_CLK_VAL_DMA_CLK_RQT
| APMG_CLK_VAL_BSM_CLK_RQT
);
1094 il_wr_prph(il
, APMG_CLK_EN_REG
,
1095 APMG_CLK_VAL_DMA_CLK_RQT
);
1098 /* Disable L1-Active */
1099 il_set_bits_prph(il
, APMG_PCIDEV_STT_REG
,
1100 APMG_PCIDEV_STT_VAL_L1_ACT_DIS
);
1105 EXPORT_SYMBOL(il_apm_init
);
1108 int il_set_tx_power(struct il_priv
*il
, s8 tx_power
, bool force
)
1113 struct il_rxon_context
*ctx
= &il
->contexts
[IL_RXON_CTX_BSS
];
1115 lockdep_assert_held(&il
->mutex
);
1117 if (il
->tx_power_user_lmt
== tx_power
&& !force
)
1120 if (!il
->cfg
->ops
->lib
->send_tx_power
)
1123 /* 0 dBm mean 1 milliwatt */
1126 "Requested user TXPOWER %d below 1 mW.\n",
1131 if (tx_power
> il
->tx_power_device_lmt
) {
1133 "Requested user TXPOWER %d above upper limit %d.\n",
1134 tx_power
, il
->tx_power_device_lmt
);
1138 if (!il_is_ready_rf(il
))
1141 /* scan complete and commit_rxon use tx_power_next value,
1142 * it always need to be updated for newest request */
1143 il
->tx_power_next
= tx_power
;
1145 /* do not set tx power when scanning or channel changing */
1146 defer
= test_bit(STATUS_SCANNING
, &il
->status
) ||
1147 memcmp(&ctx
->active
, &ctx
->staging
, sizeof(ctx
->staging
));
1148 if (defer
&& !force
) {
1149 D_INFO("Deferring tx power set\n");
1153 prev_tx_power
= il
->tx_power_user_lmt
;
1154 il
->tx_power_user_lmt
= tx_power
;
1156 ret
= il
->cfg
->ops
->lib
->send_tx_power(il
);
1158 /* if fail to set tx_power, restore the orig. tx power */
1160 il
->tx_power_user_lmt
= prev_tx_power
;
1161 il
->tx_power_next
= prev_tx_power
;
1165 EXPORT_SYMBOL(il_set_tx_power
);
1167 void il_send_bt_config(struct il_priv
*il
)
1169 struct il_bt_cmd bt_cmd
= {
1170 .lead_time
= BT_LEAD_TIME_DEF
,
1171 .max_kill
= BT_MAX_KILL_DEF
,
1176 if (!bt_coex_active
)
1177 bt_cmd
.flags
= BT_COEX_DISABLE
;
1179 bt_cmd
.flags
= BT_COEX_ENABLE
;
1181 D_INFO("BT coex %s\n",
1182 (bt_cmd
.flags
== BT_COEX_DISABLE
) ? "disable" : "active");
1184 if (il_send_cmd_pdu(il
, REPLY_BT_CONFIG
,
1185 sizeof(struct il_bt_cmd
), &bt_cmd
))
1186 IL_ERR("failed to send BT Coex Config\n");
1188 EXPORT_SYMBOL(il_send_bt_config
);
1190 int il_send_statistics_request(struct il_priv
*il
, u8 flags
, bool clear
)
1192 struct il_statistics_cmd statistics_cmd
= {
1193 .configuration_flags
=
1194 clear
? IL_STATS_CONF_CLEAR_STATS
: 0,
1197 if (flags
& CMD_ASYNC
)
1198 return il_send_cmd_pdu_async(il
, REPLY_STATISTICS_CMD
,
1199 sizeof(struct il_statistics_cmd
),
1200 &statistics_cmd
, NULL
);
1202 return il_send_cmd_pdu(il
, REPLY_STATISTICS_CMD
,
1203 sizeof(struct il_statistics_cmd
),
1206 EXPORT_SYMBOL(il_send_statistics_request
);
1208 void il_rx_pm_sleep_notif(struct il_priv
*il
,
1209 struct il_rx_mem_buffer
*rxb
)
1211 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
1212 struct il_rx_packet
*pkt
= rxb_addr(rxb
);
1213 struct il_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
1214 D_RX("sleep mode: %d, src: %d\n",
1215 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
1218 EXPORT_SYMBOL(il_rx_pm_sleep_notif
);
1220 void il_rx_pm_debug_statistics_notif(struct il_priv
*il
,
1221 struct il_rx_mem_buffer
*rxb
)
1223 struct il_rx_packet
*pkt
= rxb_addr(rxb
);
1224 u32 len
= le32_to_cpu(pkt
->len_n_flags
) & FH_RSCSR_FRAME_SIZE_MSK
;
1225 D_RADIO("Dumping %d bytes of unhandled "
1226 "notification for %s:\n", len
,
1227 il_get_cmd_string(pkt
->hdr
.cmd
));
1228 il_print_hex_dump(il
, IL_DL_RADIO
, pkt
->u
.raw
, len
);
1230 EXPORT_SYMBOL(il_rx_pm_debug_statistics_notif
);
1232 void il_rx_reply_error(struct il_priv
*il
,
1233 struct il_rx_mem_buffer
*rxb
)
1235 struct il_rx_packet
*pkt
= rxb_addr(rxb
);
1237 IL_ERR("Error Reply type 0x%08X cmd %s (0x%02X) "
1238 "seq 0x%04X ser 0x%08X\n",
1239 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
1240 il_get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
1241 pkt
->u
.err_resp
.cmd_id
,
1242 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
1243 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
1245 EXPORT_SYMBOL(il_rx_reply_error
);
1247 void il_clear_isr_stats(struct il_priv
*il
)
1249 memset(&il
->isr_stats
, 0, sizeof(il
->isr_stats
));
1252 int il_mac_conf_tx(struct ieee80211_hw
*hw
,
1253 struct ieee80211_vif
*vif
, u16 queue
,
1254 const struct ieee80211_tx_queue_params
*params
)
1256 struct il_priv
*il
= hw
->priv
;
1257 struct il_rxon_context
*ctx
;
1258 unsigned long flags
;
1261 D_MAC80211("enter\n");
1263 if (!il_is_ready_rf(il
)) {
1264 D_MAC80211("leave - RF not ready\n");
1268 if (queue
>= AC_NUM
) {
1269 D_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
1273 q
= AC_NUM
- 1 - queue
;
1275 spin_lock_irqsave(&il
->lock
, flags
);
1277 for_each_context(il
, ctx
) {
1278 ctx
->qos_data
.def_qos_parm
.ac
[q
].cw_min
=
1279 cpu_to_le16(params
->cw_min
);
1280 ctx
->qos_data
.def_qos_parm
.ac
[q
].cw_max
=
1281 cpu_to_le16(params
->cw_max
);
1282 ctx
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
1283 ctx
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
1284 cpu_to_le16((params
->txop
* 32));
1286 ctx
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
1289 spin_unlock_irqrestore(&il
->lock
, flags
);
1291 D_MAC80211("leave\n");
1294 EXPORT_SYMBOL(il_mac_conf_tx
);
1296 int il_mac_tx_last_beacon(struct ieee80211_hw
*hw
)
1298 struct il_priv
*il
= hw
->priv
;
1300 return il
->ibss_manager
== IL_IBSS_MANAGER
;
1302 EXPORT_SYMBOL_GPL(il_mac_tx_last_beacon
);
1305 il_set_mode(struct il_priv
*il
, struct il_rxon_context
*ctx
)
1307 il_connection_init_rx_config(il
, ctx
);
1309 if (il
->cfg
->ops
->hcmd
->set_rxon_chain
)
1310 il
->cfg
->ops
->hcmd
->set_rxon_chain(il
, ctx
);
1312 return il_commit_rxon(il
, ctx
);
1315 static int il_setup_interface(struct il_priv
*il
,
1316 struct il_rxon_context
*ctx
)
1318 struct ieee80211_vif
*vif
= ctx
->vif
;
1321 lockdep_assert_held(&il
->mutex
);
1324 * This variable will be correct only when there's just
1325 * a single context, but all code using it is for hardware
1326 * that supports only one context.
1328 il
->iw_mode
= vif
->type
;
1330 ctx
->is_active
= true;
1332 err
= il_set_mode(il
, ctx
);
1334 if (!ctx
->always_active
)
1335 ctx
->is_active
= false;
1343 il_mac_add_interface(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
)
1345 struct il_priv
*il
= hw
->priv
;
1346 struct il_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
1347 struct il_rxon_context
*tmp
, *ctx
= NULL
;
1350 D_MAC80211("enter: type %d, addr %pM\n",
1351 vif
->type
, vif
->addr
);
1353 mutex_lock(&il
->mutex
);
1355 if (!il_is_ready_rf(il
)) {
1356 IL_WARN("Try to add interface when device not ready\n");
1361 for_each_context(il
, tmp
) {
1362 u32 possible_modes
=
1363 tmp
->interface_modes
| tmp
->exclusive_interface_modes
;
1366 /* check if this busy context is exclusive */
1367 if (tmp
->exclusive_interface_modes
&
1368 BIT(tmp
->vif
->type
)) {
1375 if (!(possible_modes
& BIT(vif
->type
)))
1378 /* have maybe usable context w/o interface */
1388 vif_priv
->ctx
= ctx
;
1391 err
= il_setup_interface(il
, ctx
);
1396 il
->iw_mode
= NL80211_IFTYPE_STATION
;
1398 mutex_unlock(&il
->mutex
);
1400 D_MAC80211("leave\n");
1403 EXPORT_SYMBOL(il_mac_add_interface
);
1405 static void il_teardown_interface(struct il_priv
*il
,
1406 struct ieee80211_vif
*vif
,
1409 struct il_rxon_context
*ctx
= il_rxon_ctx_from_vif(vif
);
1411 lockdep_assert_held(&il
->mutex
);
1413 if (il
->scan_vif
== vif
) {
1414 il_scan_cancel_timeout(il
, 200);
1415 il_force_scan_end(il
);
1419 il_set_mode(il
, ctx
);
1420 if (!ctx
->always_active
)
1421 ctx
->is_active
= false;
1425 void il_mac_remove_interface(struct ieee80211_hw
*hw
,
1426 struct ieee80211_vif
*vif
)
1428 struct il_priv
*il
= hw
->priv
;
1429 struct il_rxon_context
*ctx
= il_rxon_ctx_from_vif(vif
);
1431 D_MAC80211("enter\n");
1433 mutex_lock(&il
->mutex
);
1435 WARN_ON(ctx
->vif
!= vif
);
1438 il_teardown_interface(il
, vif
, false);
1440 memset(il
->bssid
, 0, ETH_ALEN
);
1441 mutex_unlock(&il
->mutex
);
1443 D_MAC80211("leave\n");
1446 EXPORT_SYMBOL(il_mac_remove_interface
);
1448 int il_alloc_txq_mem(struct il_priv
*il
)
1452 sizeof(struct il_tx_queue
) *
1453 il
->cfg
->base_params
->num_of_queues
,
1456 IL_ERR("Not enough memory for txq\n");
1461 EXPORT_SYMBOL(il_alloc_txq_mem
);
1463 void il_txq_mem(struct il_priv
*il
)
1468 EXPORT_SYMBOL(il_txq_mem
);
1470 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
1472 #define IL_TRAFFIC_DUMP_SIZE (IL_TRAFFIC_ENTRY_SIZE * IL_TRAFFIC_ENTRIES)
1474 void il_reset_traffic_log(struct il_priv
*il
)
1476 il
->tx_traffic_idx
= 0;
1477 il
->rx_traffic_idx
= 0;
1479 memset(il
->tx_traffic
, 0, IL_TRAFFIC_DUMP_SIZE
);
1481 memset(il
->rx_traffic
, 0, IL_TRAFFIC_DUMP_SIZE
);
1484 int il_alloc_traffic_mem(struct il_priv
*il
)
1486 u32 traffic_size
= IL_TRAFFIC_DUMP_SIZE
;
1488 if (il_debug_level
& IL_DL_TX
) {
1489 if (!il
->tx_traffic
) {
1491 kzalloc(traffic_size
, GFP_KERNEL
);
1492 if (!il
->tx_traffic
)
1496 if (il_debug_level
& IL_DL_RX
) {
1497 if (!il
->rx_traffic
) {
1499 kzalloc(traffic_size
, GFP_KERNEL
);
1500 if (!il
->rx_traffic
)
1504 il_reset_traffic_log(il
);
1507 EXPORT_SYMBOL(il_alloc_traffic_mem
);
1509 void il_free_traffic_mem(struct il_priv
*il
)
1511 kfree(il
->tx_traffic
);
1512 il
->tx_traffic
= NULL
;
1514 kfree(il
->rx_traffic
);
1515 il
->rx_traffic
= NULL
;
1517 EXPORT_SYMBOL(il_free_traffic_mem
);
1519 void il_dbg_log_tx_data_frame(struct il_priv
*il
,
1520 u16 length
, struct ieee80211_hdr
*header
)
1525 if (likely(!(il_debug_level
& IL_DL_TX
)))
1528 if (!il
->tx_traffic
)
1531 fc
= header
->frame_control
;
1532 if (ieee80211_is_data(fc
)) {
1533 len
= (length
> IL_TRAFFIC_ENTRY_SIZE
)
1534 ? IL_TRAFFIC_ENTRY_SIZE
: length
;
1535 memcpy((il
->tx_traffic
+
1536 (il
->tx_traffic_idx
* IL_TRAFFIC_ENTRY_SIZE
)),
1538 il
->tx_traffic_idx
=
1539 (il
->tx_traffic_idx
+ 1) % IL_TRAFFIC_ENTRIES
;
1542 EXPORT_SYMBOL(il_dbg_log_tx_data_frame
);
1544 void il_dbg_log_rx_data_frame(struct il_priv
*il
,
1545 u16 length
, struct ieee80211_hdr
*header
)
1550 if (likely(!(il_debug_level
& IL_DL_RX
)))
1553 if (!il
->rx_traffic
)
1556 fc
= header
->frame_control
;
1557 if (ieee80211_is_data(fc
)) {
1558 len
= (length
> IL_TRAFFIC_ENTRY_SIZE
)
1559 ? IL_TRAFFIC_ENTRY_SIZE
: length
;
1560 memcpy((il
->rx_traffic
+
1561 (il
->rx_traffic_idx
* IL_TRAFFIC_ENTRY_SIZE
)),
1563 il
->rx_traffic_idx
=
1564 (il
->rx_traffic_idx
+ 1) % IL_TRAFFIC_ENTRIES
;
1567 EXPORT_SYMBOL(il_dbg_log_rx_data_frame
);
1569 const char *il_get_mgmt_string(int cmd
)
1572 IL_CMD(MANAGEMENT_ASSOC_REQ
);
1573 IL_CMD(MANAGEMENT_ASSOC_RESP
);
1574 IL_CMD(MANAGEMENT_REASSOC_REQ
);
1575 IL_CMD(MANAGEMENT_REASSOC_RESP
);
1576 IL_CMD(MANAGEMENT_PROBE_REQ
);
1577 IL_CMD(MANAGEMENT_PROBE_RESP
);
1578 IL_CMD(MANAGEMENT_BEACON
);
1579 IL_CMD(MANAGEMENT_ATIM
);
1580 IL_CMD(MANAGEMENT_DISASSOC
);
1581 IL_CMD(MANAGEMENT_AUTH
);
1582 IL_CMD(MANAGEMENT_DEAUTH
);
1583 IL_CMD(MANAGEMENT_ACTION
);
1590 const char *il_get_ctrl_string(int cmd
)
1593 IL_CMD(CONTROL_BACK_REQ
);
1594 IL_CMD(CONTROL_BACK
);
1595 IL_CMD(CONTROL_PSPOLL
);
1596 IL_CMD(CONTROL_RTS
);
1597 IL_CMD(CONTROL_CTS
);
1598 IL_CMD(CONTROL_ACK
);
1599 IL_CMD(CONTROL_CFEND
);
1600 IL_CMD(CONTROL_CFENDACK
);
1607 void il_clear_traffic_stats(struct il_priv
*il
)
1609 memset(&il
->tx_stats
, 0, sizeof(struct traffic_stats
));
1610 memset(&il
->rx_stats
, 0, sizeof(struct traffic_stats
));
1614 * if CONFIG_IWLWIFI_LEGACY_DEBUGFS defined,
1615 * il_update_stats function will
1616 * record all the MGMT, CTRL and DATA pkt for both TX and Rx pass
1617 * Use debugFs to display the rx/rx_statistics
1618 * if CONFIG_IWLWIFI_LEGACY_DEBUGFS not being defined, then no MGMT and CTRL
1619 * information will be recorded, but DATA pkt still will be recorded
1620 * for the reason of il_led.c need to control the led blinking based on
1621 * number of tx and rx data.
1625 il_update_stats(struct il_priv
*il
, bool is_tx
, __le16 fc
, u16 len
)
1627 struct traffic_stats
*stats
;
1630 stats
= &il
->tx_stats
;
1632 stats
= &il
->rx_stats
;
1634 if (ieee80211_is_mgmt(fc
)) {
1635 switch (fc
& cpu_to_le16(IEEE80211_FCTL_STYPE
)) {
1636 case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ
):
1637 stats
->mgmt
[MANAGEMENT_ASSOC_REQ
]++;
1639 case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP
):
1640 stats
->mgmt
[MANAGEMENT_ASSOC_RESP
]++;
1642 case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ
):
1643 stats
->mgmt
[MANAGEMENT_REASSOC_REQ
]++;
1645 case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP
):
1646 stats
->mgmt
[MANAGEMENT_REASSOC_RESP
]++;
1648 case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
):
1649 stats
->mgmt
[MANAGEMENT_PROBE_REQ
]++;
1651 case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP
):
1652 stats
->mgmt
[MANAGEMENT_PROBE_RESP
]++;
1654 case cpu_to_le16(IEEE80211_STYPE_BEACON
):
1655 stats
->mgmt
[MANAGEMENT_BEACON
]++;
1657 case cpu_to_le16(IEEE80211_STYPE_ATIM
):
1658 stats
->mgmt
[MANAGEMENT_ATIM
]++;
1660 case cpu_to_le16(IEEE80211_STYPE_DISASSOC
):
1661 stats
->mgmt
[MANAGEMENT_DISASSOC
]++;
1663 case cpu_to_le16(IEEE80211_STYPE_AUTH
):
1664 stats
->mgmt
[MANAGEMENT_AUTH
]++;
1666 case cpu_to_le16(IEEE80211_STYPE_DEAUTH
):
1667 stats
->mgmt
[MANAGEMENT_DEAUTH
]++;
1669 case cpu_to_le16(IEEE80211_STYPE_ACTION
):
1670 stats
->mgmt
[MANAGEMENT_ACTION
]++;
1673 } else if (ieee80211_is_ctl(fc
)) {
1674 switch (fc
& cpu_to_le16(IEEE80211_FCTL_STYPE
)) {
1675 case cpu_to_le16(IEEE80211_STYPE_BACK_REQ
):
1676 stats
->ctrl
[CONTROL_BACK_REQ
]++;
1678 case cpu_to_le16(IEEE80211_STYPE_BACK
):
1679 stats
->ctrl
[CONTROL_BACK
]++;
1681 case cpu_to_le16(IEEE80211_STYPE_PSPOLL
):
1682 stats
->ctrl
[CONTROL_PSPOLL
]++;
1684 case cpu_to_le16(IEEE80211_STYPE_RTS
):
1685 stats
->ctrl
[CONTROL_RTS
]++;
1687 case cpu_to_le16(IEEE80211_STYPE_CTS
):
1688 stats
->ctrl
[CONTROL_CTS
]++;
1690 case cpu_to_le16(IEEE80211_STYPE_ACK
):
1691 stats
->ctrl
[CONTROL_ACK
]++;
1693 case cpu_to_le16(IEEE80211_STYPE_CFEND
):
1694 stats
->ctrl
[CONTROL_CFEND
]++;
1696 case cpu_to_le16(IEEE80211_STYPE_CFENDACK
):
1697 stats
->ctrl
[CONTROL_CFENDACK
]++;
1703 stats
->data_bytes
+= len
;
1706 EXPORT_SYMBOL(il_update_stats
);
1709 int il_force_reset(struct il_priv
*il
, bool external
)
1711 struct il_force_reset
*force_reset
;
1713 if (test_bit(STATUS_EXIT_PENDING
, &il
->status
))
1716 force_reset
= &il
->force_reset
;
1717 force_reset
->reset_request_count
++;
1719 if (force_reset
->last_force_reset_jiffies
&&
1720 time_after(force_reset
->last_force_reset_jiffies
+
1721 force_reset
->reset_duration
, jiffies
)) {
1722 D_INFO("force reset rejected\n");
1723 force_reset
->reset_reject_count
++;
1727 force_reset
->reset_success_count
++;
1728 force_reset
->last_force_reset_jiffies
= jiffies
;
1731 * if the request is from external(ex: debugfs),
1732 * then always perform the request in regardless the module
1734 * if the request is from internal (uCode error or driver
1735 * detect failure), then fw_restart module parameter
1736 * need to be check before performing firmware reload
1739 if (!external
&& !il
->cfg
->mod_params
->restart_fw
) {
1740 D_INFO("Cancel firmware reload based on "
1741 "module parameter setting\n");
1745 IL_ERR("On demand firmware reload\n");
1747 /* Set the FW error flag -- cleared on il_down */
1748 set_bit(STATUS_FW_ERROR
, &il
->status
);
1749 wake_up(&il
->wait_command_queue
);
1751 * Keep the restart process from trying to send host
1752 * commands by clearing the INIT status bit
1754 clear_bit(STATUS_READY
, &il
->status
);
1755 queue_work(il
->workqueue
, &il
->restart
);
1761 il_mac_change_interface(struct ieee80211_hw
*hw
,
1762 struct ieee80211_vif
*vif
,
1763 enum nl80211_iftype newtype
, bool newp2p
)
1765 struct il_priv
*il
= hw
->priv
;
1766 struct il_rxon_context
*ctx
= il_rxon_ctx_from_vif(vif
);
1767 struct il_rxon_context
*tmp
;
1768 u32 interface_modes
;
1771 newtype
= ieee80211_iftype_p2p(newtype
, newp2p
);
1773 mutex_lock(&il
->mutex
);
1775 if (!ctx
->vif
|| !il_is_ready_rf(il
)) {
1777 * Huh? But wait ... this can maybe happen when
1778 * we're in the middle of a firmware restart!
1784 interface_modes
= ctx
->interface_modes
| ctx
->exclusive_interface_modes
;
1786 if (!(interface_modes
& BIT(newtype
))) {
1791 if (ctx
->exclusive_interface_modes
& BIT(newtype
)) {
1792 for_each_context(il
, tmp
) {
1800 * The current mode switch would be exclusive, but
1801 * another context is active ... refuse the switch.
1809 il_teardown_interface(il
, vif
, true);
1810 vif
->type
= newtype
;
1812 err
= il_setup_interface(il
, ctx
);
1815 * We've switched internally, but submitting to the
1816 * device may have failed for some reason. Mask this
1817 * error, because otherwise mac80211 will not switch
1818 * (and set the interface type back) and we'll be
1819 * out of sync with it.
1824 mutex_unlock(&il
->mutex
);
1827 EXPORT_SYMBOL(il_mac_change_interface
);
1830 * On every watchdog tick we check (latest) time stamp. If it does not
1831 * change during timeout period and queue is not empty we reset firmware.
1833 static int il_check_stuck_queue(struct il_priv
*il
, int cnt
)
1835 struct il_tx_queue
*txq
= &il
->txq
[cnt
];
1836 struct il_queue
*q
= &txq
->q
;
1837 unsigned long timeout
;
1840 if (q
->read_ptr
== q
->write_ptr
) {
1841 txq
->time_stamp
= jiffies
;
1845 timeout
= txq
->time_stamp
+
1846 msecs_to_jiffies(il
->cfg
->base_params
->wd_timeout
);
1848 if (time_after(jiffies
, timeout
)) {
1849 IL_ERR("Queue %d stuck for %u ms.\n",
1850 q
->id
, il
->cfg
->base_params
->wd_timeout
);
1851 ret
= il_force_reset(il
, false);
1852 return (ret
== -EAGAIN
) ? 0 : 1;
1859 * Making watchdog tick be a quarter of timeout assure we will
1860 * discover the queue hung between timeout and 1.25*timeout
1862 #define IL_WD_TICK(timeout) ((timeout) / 4)
1865 * Watchdog timer callback, we check each tx queue for stuck, if if hung
1866 * we reset the firmware. If everything is fine just rearm the timer.
1868 void il_bg_watchdog(unsigned long data
)
1870 struct il_priv
*il
= (struct il_priv
*)data
;
1872 unsigned long timeout
;
1874 if (test_bit(STATUS_EXIT_PENDING
, &il
->status
))
1877 timeout
= il
->cfg
->base_params
->wd_timeout
;
1881 /* monitor and check for stuck cmd queue */
1882 if (il_check_stuck_queue(il
, il
->cmd_queue
))
1885 /* monitor and check for other stuck queues */
1886 if (il_is_any_associated(il
)) {
1887 for (cnt
= 0; cnt
< il
->hw_params
.max_txq_num
; cnt
++) {
1888 /* skip as we already checked the command queue */
1889 if (cnt
== il
->cmd_queue
)
1891 if (il_check_stuck_queue(il
, cnt
))
1896 mod_timer(&il
->watchdog
, jiffies
+
1897 msecs_to_jiffies(IL_WD_TICK(timeout
)));
1899 EXPORT_SYMBOL(il_bg_watchdog
);
1901 void il_setup_watchdog(struct il_priv
*il
)
1903 unsigned int timeout
= il
->cfg
->base_params
->wd_timeout
;
1906 mod_timer(&il
->watchdog
,
1907 jiffies
+ msecs_to_jiffies(IL_WD_TICK(timeout
)));
1909 del_timer(&il
->watchdog
);
1911 EXPORT_SYMBOL(il_setup_watchdog
);
1914 * extended beacon time format
1915 * time in usec will be changed into a 32-bit value in extended:internal format
1916 * the extended part is the beacon counts
1917 * the internal part is the time in usec within one beacon interval
1920 il_usecs_to_beacons(struct il_priv
*il
,
1921 u32 usec
, u32 beacon_interval
)
1925 u32 interval
= beacon_interval
* TIME_UNIT
;
1927 if (!interval
|| !usec
)
1930 quot
= (usec
/ interval
) &
1931 (il_beacon_time_mask_high(il
,
1932 il
->hw_params
.beacon_time_tsf_bits
) >>
1933 il
->hw_params
.beacon_time_tsf_bits
);
1934 rem
= (usec
% interval
) & il_beacon_time_mask_low(il
,
1935 il
->hw_params
.beacon_time_tsf_bits
);
1937 return (quot
<< il
->hw_params
.beacon_time_tsf_bits
) + rem
;
1939 EXPORT_SYMBOL(il_usecs_to_beacons
);
1941 /* base is usually what we get from ucode with each received frame,
1942 * the same as HW timer counter counting down
1944 __le32
il_add_beacon_time(struct il_priv
*il
, u32 base
,
1945 u32 addon
, u32 beacon_interval
)
1947 u32 base_low
= base
& il_beacon_time_mask_low(il
,
1948 il
->hw_params
.beacon_time_tsf_bits
);
1949 u32 addon_low
= addon
& il_beacon_time_mask_low(il
,
1950 il
->hw_params
.beacon_time_tsf_bits
);
1951 u32 interval
= beacon_interval
* TIME_UNIT
;
1952 u32 res
= (base
& il_beacon_time_mask_high(il
,
1953 il
->hw_params
.beacon_time_tsf_bits
)) +
1954 (addon
& il_beacon_time_mask_high(il
,
1955 il
->hw_params
.beacon_time_tsf_bits
));
1957 if (base_low
> addon_low
)
1958 res
+= base_low
- addon_low
;
1959 else if (base_low
< addon_low
) {
1960 res
+= interval
+ base_low
- addon_low
;
1961 res
+= (1 << il
->hw_params
.beacon_time_tsf_bits
);
1963 res
+= (1 << il
->hw_params
.beacon_time_tsf_bits
);
1965 return cpu_to_le32(res
);
1967 EXPORT_SYMBOL(il_add_beacon_time
);
1971 int il_pci_suspend(struct device
*device
)
1973 struct pci_dev
*pdev
= to_pci_dev(device
);
1974 struct il_priv
*il
= pci_get_drvdata(pdev
);
1977 * This function is called when system goes into suspend state
1978 * mac80211 will call il_mac_stop() from the mac80211 suspend function
1979 * first but since il_mac_stop() has no knowledge of who the caller is,
1980 * it will not call apm_ops.stop() to stop the DMA operation.
1981 * Calling apm_ops.stop here to make sure we stop the DMA.
1987 EXPORT_SYMBOL(il_pci_suspend
);
1989 int il_pci_resume(struct device
*device
)
1991 struct pci_dev
*pdev
= to_pci_dev(device
);
1992 struct il_priv
*il
= pci_get_drvdata(pdev
);
1993 bool hw_rfkill
= false;
1996 * We disable the RETRY_TIMEOUT register (0x41) to keep
1997 * PCI Tx retries from interfering with C3 CPU state.
1999 pci_write_config_byte(pdev
, PCI_CFG_RETRY_TIMEOUT
, 0x00);
2001 il_enable_interrupts(il
);
2003 if (!(_il_rd(il
, CSR_GP_CNTRL
) &
2004 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
2008 set_bit(STATUS_RF_KILL_HW
, &il
->status
);
2010 clear_bit(STATUS_RF_KILL_HW
, &il
->status
);
2012 wiphy_rfkill_set_hw_state(il
->hw
->wiphy
, hw_rfkill
);
2016 EXPORT_SYMBOL(il_pci_resume
);
2018 const struct dev_pm_ops il_pm_ops
= {
2019 .suspend
= il_pci_suspend
,
2020 .resume
= il_pci_resume
,
2021 .freeze
= il_pci_suspend
,
2022 .thaw
= il_pci_resume
,
2023 .poweroff
= il_pci_suspend
,
2024 .restore
= il_pci_resume
,
2026 EXPORT_SYMBOL(il_pm_ops
);
2028 #endif /* CONFIG_PM */
2031 il_update_qos(struct il_priv
*il
, struct il_rxon_context
*ctx
)
2033 if (test_bit(STATUS_EXIT_PENDING
, &il
->status
))
2036 if (!ctx
->is_active
)
2039 ctx
->qos_data
.def_qos_parm
.qos_flags
= 0;
2041 if (ctx
->qos_data
.qos_active
)
2042 ctx
->qos_data
.def_qos_parm
.qos_flags
|=
2043 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
2045 if (ctx
->ht
.enabled
)
2046 ctx
->qos_data
.def_qos_parm
.qos_flags
|= QOS_PARAM_FLG_TGN_MSK
;
2048 D_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
2049 ctx
->qos_data
.qos_active
,
2050 ctx
->qos_data
.def_qos_parm
.qos_flags
);
2052 il_send_cmd_pdu_async(il
, ctx
->qos_cmd
,
2053 sizeof(struct il_qosparam_cmd
),
2054 &ctx
->qos_data
.def_qos_parm
, NULL
);
2058 * il_mac_config - mac80211 config callback
2060 int il_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
2062 struct il_priv
*il
= hw
->priv
;
2063 const struct il_channel_info
*ch_info
;
2064 struct ieee80211_conf
*conf
= &hw
->conf
;
2065 struct ieee80211_channel
*channel
= conf
->channel
;
2066 struct il_ht_config
*ht_conf
= &il
->current_ht_config
;
2067 struct il_rxon_context
*ctx
;
2068 unsigned long flags
= 0;
2071 int scan_active
= 0;
2072 bool ht_changed
[NUM_IL_RXON_CTX
] = {};
2074 if (WARN_ON(!il
->cfg
->ops
->legacy
))
2077 mutex_lock(&il
->mutex
);
2079 D_MAC80211("enter to channel %d changed 0x%X\n",
2080 channel
->hw_value
, changed
);
2082 if (unlikely(test_bit(STATUS_SCANNING
, &il
->status
))) {
2084 D_MAC80211("scan active\n");
2087 if (changed
& (IEEE80211_CONF_CHANGE_SMPS
|
2088 IEEE80211_CONF_CHANGE_CHANNEL
)) {
2089 /* mac80211 uses static for non-HT which is what we want */
2090 il
->current_ht_config
.smps
= conf
->smps_mode
;
2093 * Recalculate chain counts.
2095 * If monitor mode is enabled then mac80211 will
2096 * set up the SM PS mode to OFF if an HT channel is
2099 if (il
->cfg
->ops
->hcmd
->set_rxon_chain
)
2100 for_each_context(il
, ctx
)
2101 il
->cfg
->ops
->hcmd
->set_rxon_chain(il
, ctx
);
2104 /* during scanning mac80211 will delay channel setting until
2105 * scan finish with changed = 0
2107 if (!changed
|| (changed
& IEEE80211_CONF_CHANGE_CHANNEL
)) {
2111 ch
= channel
->hw_value
;
2112 ch_info
= il_get_channel_info(il
, channel
->band
, ch
);
2113 if (!il_is_channel_valid(ch_info
)) {
2114 D_MAC80211("leave - invalid channel\n");
2119 if (il
->iw_mode
== NL80211_IFTYPE_ADHOC
&&
2120 !il_is_channel_ibss(ch_info
)) {
2121 D_MAC80211("leave - not IBSS channel\n");
2126 spin_lock_irqsave(&il
->lock
, flags
);
2128 for_each_context(il
, ctx
) {
2129 /* Configure HT40 channels */
2130 if (ctx
->ht
.enabled
!= conf_is_ht(conf
)) {
2131 ctx
->ht
.enabled
= conf_is_ht(conf
);
2132 ht_changed
[ctx
->ctxid
] = true;
2134 if (ctx
->ht
.enabled
) {
2135 if (conf_is_ht40_minus(conf
)) {
2136 ctx
->ht
.extension_chan_offset
=
2137 IEEE80211_HT_PARAM_CHA_SEC_BELOW
;
2138 ctx
->ht
.is_40mhz
= true;
2139 } else if (conf_is_ht40_plus(conf
)) {
2140 ctx
->ht
.extension_chan_offset
=
2141 IEEE80211_HT_PARAM_CHA_SEC_ABOVE
;
2142 ctx
->ht
.is_40mhz
= true;
2144 ctx
->ht
.extension_chan_offset
=
2145 IEEE80211_HT_PARAM_CHA_SEC_NONE
;
2146 ctx
->ht
.is_40mhz
= false;
2149 ctx
->ht
.is_40mhz
= false;
2152 * Default to no protection. Protection mode will
2153 * later be set from BSS config in il_ht_conf
2155 ctx
->ht
.protection
=
2156 IEEE80211_HT_OP_MODE_PROTECTION_NONE
;
2158 /* if we are switching from ht to 2.4 clear flags
2159 * from any ht related info since 2.4 does not
2161 if ((le16_to_cpu(ctx
->staging
.channel
) != ch
))
2162 ctx
->staging
.flags
= 0;
2164 il_set_rxon_channel(il
, channel
, ctx
);
2165 il_set_rxon_ht(il
, ht_conf
);
2167 il_set_flags_for_band(il
, ctx
, channel
->band
,
2171 spin_unlock_irqrestore(&il
->lock
, flags
);
2173 if (il
->cfg
->ops
->legacy
->update_bcast_stations
)
2175 il
->cfg
->ops
->legacy
->update_bcast_stations(il
);
2178 /* The list of supported rates and rate mask can be different
2179 * for each band; since the band may have changed, reset
2180 * the rate mask to what mac80211 lists */
2184 if (changed
& (IEEE80211_CONF_CHANGE_PS
|
2185 IEEE80211_CONF_CHANGE_IDLE
)) {
2186 ret
= il_power_update_mode(il
, false);
2188 D_MAC80211("Error setting sleep level\n");
2191 if (changed
& IEEE80211_CONF_CHANGE_POWER
) {
2192 D_MAC80211("TX Power old=%d new=%d\n",
2193 il
->tx_power_user_lmt
, conf
->power_level
);
2195 il_set_tx_power(il
, conf
->power_level
, false);
2198 if (!il_is_ready(il
)) {
2199 D_MAC80211("leave - not ready\n");
2206 for_each_context(il
, ctx
) {
2207 if (memcmp(&ctx
->active
, &ctx
->staging
, sizeof(ctx
->staging
)))
2208 il_commit_rxon(il
, ctx
);
2211 "Not re-sending same RXON configuration.\n");
2212 if (ht_changed
[ctx
->ctxid
])
2213 il_update_qos(il
, ctx
);
2217 D_MAC80211("leave\n");
2218 mutex_unlock(&il
->mutex
);
2221 EXPORT_SYMBOL(il_mac_config
);
2223 void il_mac_reset_tsf(struct ieee80211_hw
*hw
,
2224 struct ieee80211_vif
*vif
)
2226 struct il_priv
*il
= hw
->priv
;
2227 unsigned long flags
;
2228 /* IBSS can only be the IL_RXON_CTX_BSS context */
2229 struct il_rxon_context
*ctx
= &il
->contexts
[IL_RXON_CTX_BSS
];
2231 if (WARN_ON(!il
->cfg
->ops
->legacy
))
2234 mutex_lock(&il
->mutex
);
2235 D_MAC80211("enter\n");
2237 spin_lock_irqsave(&il
->lock
, flags
);
2238 memset(&il
->current_ht_config
, 0, sizeof(struct il_ht_config
));
2239 spin_unlock_irqrestore(&il
->lock
, flags
);
2241 spin_lock_irqsave(&il
->lock
, flags
);
2243 /* new association get rid of ibss beacon skb */
2245 dev_kfree_skb(il
->beacon_skb
);
2247 il
->beacon_skb
= NULL
;
2251 spin_unlock_irqrestore(&il
->lock
, flags
);
2253 il_scan_cancel_timeout(il
, 100);
2254 if (!il_is_ready_rf(il
)) {
2255 D_MAC80211("leave - not ready\n");
2256 mutex_unlock(&il
->mutex
);
2260 /* we are restarting association process
2261 * clear RXON_FILTER_ASSOC_MSK bit
2263 ctx
->staging
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2264 il_commit_rxon(il
, ctx
);
2268 mutex_unlock(&il
->mutex
);
2270 D_MAC80211("leave\n");
2272 EXPORT_SYMBOL(il_mac_reset_tsf
);
2274 static void il_ht_conf(struct il_priv
*il
,
2275 struct ieee80211_vif
*vif
)
2277 struct il_ht_config
*ht_conf
= &il
->current_ht_config
;
2278 struct ieee80211_sta
*sta
;
2279 struct ieee80211_bss_conf
*bss_conf
= &vif
->bss_conf
;
2280 struct il_rxon_context
*ctx
= il_rxon_ctx_from_vif(vif
);
2282 D_ASSOC("enter:\n");
2284 if (!ctx
->ht
.enabled
)
2287 ctx
->ht
.protection
=
2288 bss_conf
->ht_operation_mode
& IEEE80211_HT_OP_MODE_PROTECTION
;
2289 ctx
->ht
.non_gf_sta_present
=
2290 !!(bss_conf
->ht_operation_mode
&
2291 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT
);
2293 ht_conf
->single_chain_sufficient
= false;
2295 switch (vif
->type
) {
2296 case NL80211_IFTYPE_STATION
:
2298 sta
= ieee80211_find_sta(vif
, bss_conf
->bssid
);
2300 struct ieee80211_sta_ht_cap
*ht_cap
= &sta
->ht_cap
;
2303 maxstreams
= (ht_cap
->mcs
.tx_params
&
2304 IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK
)
2305 >> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
;
2308 if (ht_cap
->mcs
.rx_mask
[1] == 0 &&
2309 ht_cap
->mcs
.rx_mask
[2] == 0)
2310 ht_conf
->single_chain_sufficient
= true;
2311 if (maxstreams
<= 1)
2312 ht_conf
->single_chain_sufficient
= true;
2315 * If at all, this can only happen through a race
2316 * when the AP disconnects us while we're still
2317 * setting up the connection, in that case mac80211
2318 * will soon tell us about that.
2320 ht_conf
->single_chain_sufficient
= true;
2324 case NL80211_IFTYPE_ADHOC
:
2325 ht_conf
->single_chain_sufficient
= true;
2334 static inline void il_set_no_assoc(struct il_priv
*il
,
2335 struct ieee80211_vif
*vif
)
2337 struct il_rxon_context
*ctx
= il_rxon_ctx_from_vif(vif
);
2340 * inform the ucode that there is no longer an
2341 * association and that no more packets should be
2344 ctx
->staging
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2345 ctx
->staging
.assoc_id
= 0;
2346 il_commit_rxon(il
, ctx
);
2349 static void il_beacon_update(struct ieee80211_hw
*hw
,
2350 struct ieee80211_vif
*vif
)
2352 struct il_priv
*il
= hw
->priv
;
2353 unsigned long flags
;
2355 struct sk_buff
*skb
= ieee80211_beacon_get(hw
, vif
);
2360 D_MAC80211("enter\n");
2362 lockdep_assert_held(&il
->mutex
);
2364 if (!il
->beacon_ctx
) {
2365 IL_ERR("update beacon but no beacon context!\n");
2370 spin_lock_irqsave(&il
->lock
, flags
);
2373 dev_kfree_skb(il
->beacon_skb
);
2375 il
->beacon_skb
= skb
;
2377 timestamp
= ((struct ieee80211_mgmt
*)skb
->data
)->u
.beacon
.timestamp
;
2378 il
->timestamp
= le64_to_cpu(timestamp
);
2380 D_MAC80211("leave\n");
2381 spin_unlock_irqrestore(&il
->lock
, flags
);
2383 if (!il_is_ready_rf(il
)) {
2384 D_MAC80211("leave - RF not ready\n");
2388 il
->cfg
->ops
->legacy
->post_associate(il
);
2391 void il_mac_bss_info_changed(struct ieee80211_hw
*hw
,
2392 struct ieee80211_vif
*vif
,
2393 struct ieee80211_bss_conf
*bss_conf
,
2396 struct il_priv
*il
= hw
->priv
;
2397 struct il_rxon_context
*ctx
= il_rxon_ctx_from_vif(vif
);
2400 if (WARN_ON(!il
->cfg
->ops
->legacy
))
2403 D_MAC80211("changes = 0x%X\n", changes
);
2405 mutex_lock(&il
->mutex
);
2407 if (!il_is_alive(il
)) {
2408 mutex_unlock(&il
->mutex
);
2412 if (changes
& BSS_CHANGED_QOS
) {
2413 unsigned long flags
;
2415 spin_lock_irqsave(&il
->lock
, flags
);
2416 ctx
->qos_data
.qos_active
= bss_conf
->qos
;
2417 il_update_qos(il
, ctx
);
2418 spin_unlock_irqrestore(&il
->lock
, flags
);
2421 if (changes
& BSS_CHANGED_BEACON_ENABLED
) {
2423 * the add_interface code must make sure we only ever
2424 * have a single interface that could be beaconing at
2427 if (vif
->bss_conf
.enable_beacon
)
2428 il
->beacon_ctx
= ctx
;
2430 il
->beacon_ctx
= NULL
;
2433 if (changes
& BSS_CHANGED_BSSID
) {
2434 D_MAC80211("BSSID %pM\n", bss_conf
->bssid
);
2437 * If there is currently a HW scan going on in the
2438 * background then we need to cancel it else the RXON
2439 * below/in post_associate will fail.
2441 if (il_scan_cancel_timeout(il
, 100)) {
2443 "Aborted scan still in progress after 100ms\n");
2445 "leaving - scan abort failed.\n");
2446 mutex_unlock(&il
->mutex
);
2450 /* mac80211 only sets assoc when in STATION mode */
2451 if (vif
->type
== NL80211_IFTYPE_ADHOC
|| bss_conf
->assoc
) {
2452 memcpy(ctx
->staging
.bssid_addr
,
2453 bss_conf
->bssid
, ETH_ALEN
);
2455 /* currently needed in a few places */
2456 memcpy(il
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
2458 ctx
->staging
.filter_flags
&=
2459 ~RXON_FILTER_ASSOC_MSK
;
2465 * This needs to be after setting the BSSID in case
2466 * mac80211 decides to do both changes at once because
2467 * it will invoke post_associate.
2469 if (vif
->type
== NL80211_IFTYPE_ADHOC
&& (changes
& BSS_CHANGED_BEACON
))
2470 il_beacon_update(hw
, vif
);
2472 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
2473 D_MAC80211("ERP_PREAMBLE %d\n",
2474 bss_conf
->use_short_preamble
);
2475 if (bss_conf
->use_short_preamble
)
2476 ctx
->staging
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2478 ctx
->staging
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2481 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
2483 "ERP_CTS %d\n", bss_conf
->use_cts_prot
);
2484 if (bss_conf
->use_cts_prot
&& il
->band
!= IEEE80211_BAND_5GHZ
)
2485 ctx
->staging
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
2487 ctx
->staging
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
2488 if (bss_conf
->use_cts_prot
)
2489 ctx
->staging
.flags
|= RXON_FLG_SELF_CTS_EN
;
2491 ctx
->staging
.flags
&= ~RXON_FLG_SELF_CTS_EN
;
2494 if (changes
& BSS_CHANGED_BASIC_RATES
) {
2495 /* XXX use this information
2497 * To do that, remove code from il_set_rate() and put something
2501 ctx->staging.ofdm_basic_rates =
2502 bss_conf->basic_rates;
2504 ctx->staging.ofdm_basic_rates =
2505 bss_conf->basic_rates >> 4;
2506 ctx->staging.cck_basic_rates =
2507 bss_conf->basic_rates & 0xF;
2511 if (changes
& BSS_CHANGED_HT
) {
2512 il_ht_conf(il
, vif
);
2514 if (il
->cfg
->ops
->hcmd
->set_rxon_chain
)
2515 il
->cfg
->ops
->hcmd
->set_rxon_chain(il
, ctx
);
2518 if (changes
& BSS_CHANGED_ASSOC
) {
2519 D_MAC80211("ASSOC %d\n", bss_conf
->assoc
);
2520 if (bss_conf
->assoc
) {
2521 il
->timestamp
= bss_conf
->timestamp
;
2523 if (!il_is_rfkill(il
))
2524 il
->cfg
->ops
->legacy
->post_associate(il
);
2526 il_set_no_assoc(il
, vif
);
2529 if (changes
&& il_is_associated_ctx(ctx
) && bss_conf
->aid
) {
2530 D_MAC80211("Changes (%#x) while associated\n",
2532 ret
= il_send_rxon_assoc(il
, ctx
);
2534 /* Sync active_rxon with latest change. */
2535 memcpy((void *)&ctx
->active
,
2537 sizeof(struct il_rxon_cmd
));
2541 if (changes
& BSS_CHANGED_BEACON_ENABLED
) {
2542 if (vif
->bss_conf
.enable_beacon
) {
2543 memcpy(ctx
->staging
.bssid_addr
,
2544 bss_conf
->bssid
, ETH_ALEN
);
2545 memcpy(il
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
2546 il
->cfg
->ops
->legacy
->config_ap(il
);
2548 il_set_no_assoc(il
, vif
);
2551 if (changes
& BSS_CHANGED_IBSS
) {
2552 ret
= il
->cfg
->ops
->legacy
->manage_ibss_station(il
, vif
,
2553 bss_conf
->ibss_joined
);
2555 IL_ERR("failed to %s IBSS station %pM\n",
2556 bss_conf
->ibss_joined
? "add" : "remove",
2560 mutex_unlock(&il
->mutex
);
2562 D_MAC80211("leave\n");
2564 EXPORT_SYMBOL(il_mac_bss_info_changed
);
2566 irqreturn_t
il_isr(int irq
, void *data
)
2568 struct il_priv
*il
= data
;
2569 u32 inta
, inta_mask
;
2571 unsigned long flags
;
2575 spin_lock_irqsave(&il
->lock
, flags
);
2577 /* Disable (but don't clear!) interrupts here to avoid
2578 * back-to-back ISRs and sporadic interrupts from our NIC.
2579 * If we have something to service, the tasklet will re-enable ints.
2580 * If we *don't* have something, we'll re-enable before leaving here. */
2581 inta_mask
= _il_rd(il
, CSR_INT_MASK
); /* just for debug */
2582 _il_wr(il
, CSR_INT_MASK
, 0x00000000);
2584 /* Discover which interrupts are active/pending */
2585 inta
= _il_rd(il
, CSR_INT
);
2586 inta_fh
= _il_rd(il
, CSR_FH_INT_STATUS
);
2588 /* Ignore interrupt if there's nothing in NIC to service.
2589 * This may be due to IRQ shared with another device,
2590 * or due to sporadic interrupts thrown from our NIC. */
2591 if (!inta
&& !inta_fh
) {
2593 "Ignore interrupt, inta == 0, inta_fh == 0\n");
2597 if (inta
== 0xFFFFFFFF || (inta
& 0xFFFFFFF0) == 0xa5a5a5a0) {
2598 /* Hardware disappeared. It might have already raised
2600 IL_WARN("HARDWARE GONE?? INTA == 0x%08x\n", inta
);
2604 D_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
2605 inta
, inta_mask
, inta_fh
);
2607 inta
&= ~CSR_INT_BIT_SCD
;
2609 /* il_irq_tasklet() will service interrupts and re-enable them */
2610 if (likely(inta
|| inta_fh
))
2611 tasklet_schedule(&il
->irq_tasklet
);
2614 spin_unlock_irqrestore(&il
->lock
, flags
);
2618 /* re-enable interrupts here since we don't have anything to service. */
2619 /* only Re-enable if disabled by irq */
2620 if (test_bit(STATUS_INT_ENABLED
, &il
->status
))
2621 il_enable_interrupts(il
);
2622 spin_unlock_irqrestore(&il
->lock
, flags
);
2625 EXPORT_SYMBOL(il_isr
);
2628 * il_tx_cmd_protection: Set rts/cts. 3945 and 4965 only share this
2631 void il_tx_cmd_protection(struct il_priv
*il
,
2632 struct ieee80211_tx_info
*info
,
2633 __le16 fc
, __le32
*tx_flags
)
2635 if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_USE_RTS_CTS
) {
2636 *tx_flags
|= TX_CMD_FLG_RTS_MSK
;
2637 *tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
2638 *tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
2640 if (!ieee80211_is_mgmt(fc
))
2643 switch (fc
& cpu_to_le16(IEEE80211_FCTL_STYPE
)) {
2644 case cpu_to_le16(IEEE80211_STYPE_AUTH
):
2645 case cpu_to_le16(IEEE80211_STYPE_DEAUTH
):
2646 case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ
):
2647 case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ
):
2648 *tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
2649 *tx_flags
|= TX_CMD_FLG_CTS_MSK
;
2652 } else if (info
->control
.rates
[0].flags
&
2653 IEEE80211_TX_RC_USE_CTS_PROTECT
) {
2654 *tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
2655 *tx_flags
|= TX_CMD_FLG_CTS_MSK
;
2656 *tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
2659 EXPORT_SYMBOL(il_tx_cmd_protection
);