1 /******************************************************************************
5 * Copyright(c) 2008 - 2010 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 <net/mac80211.h>
35 #include "iwl-eeprom.h"
36 #include "iwl-dev.h" /* FIXME: remove */
37 #include "iwl-debug.h"
40 #include "iwl-power.h"
42 #include "iwl-helpers.h"
45 MODULE_DESCRIPTION("iwl core");
46 MODULE_VERSION(IWLWIFI_VERSION
);
47 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
48 MODULE_LICENSE("GPL");
51 * set bt_coex_active to true, uCode will do kill/defer
52 * every time the priority line is asserted (BT is sending signals on the
53 * priority line in the PCIx).
54 * set bt_coex_active to false, uCode will ignore the BT activity and
55 * perform the normal operation
57 * User might experience transmit issue on some platform due to WiFi/BT
58 * co-exist problem. The possible behaviors are:
59 * Able to scan and finding all the available AP
60 * Not able to associate with any AP
61 * On those platforms, WiFi communication can be restored by set
62 * "bt_coex_active" module parameter to "false"
64 * default: bt_coex_active = true (BT_COEX_ENABLE)
66 static bool bt_coex_active
= true;
67 module_param(bt_coex_active
, bool, S_IRUGO
);
68 MODULE_PARM_DESC(bt_coex_active
, "enable wifi/bluetooth co-exist\n");
70 static struct iwl_wimax_coex_event_entry cu_priorities
[COEX_NUM_OF_EVENTS
] = {
71 {COEX_CU_UNASSOC_IDLE_RP
, COEX_CU_UNASSOC_IDLE_WP
,
72 0, COEX_UNASSOC_IDLE_FLAGS
},
73 {COEX_CU_UNASSOC_MANUAL_SCAN_RP
, COEX_CU_UNASSOC_MANUAL_SCAN_WP
,
74 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS
},
75 {COEX_CU_UNASSOC_AUTO_SCAN_RP
, COEX_CU_UNASSOC_AUTO_SCAN_WP
,
76 0, COEX_UNASSOC_AUTO_SCAN_FLAGS
},
77 {COEX_CU_CALIBRATION_RP
, COEX_CU_CALIBRATION_WP
,
78 0, COEX_CALIBRATION_FLAGS
},
79 {COEX_CU_PERIODIC_CALIBRATION_RP
, COEX_CU_PERIODIC_CALIBRATION_WP
,
80 0, COEX_PERIODIC_CALIBRATION_FLAGS
},
81 {COEX_CU_CONNECTION_ESTAB_RP
, COEX_CU_CONNECTION_ESTAB_WP
,
82 0, COEX_CONNECTION_ESTAB_FLAGS
},
83 {COEX_CU_ASSOCIATED_IDLE_RP
, COEX_CU_ASSOCIATED_IDLE_WP
,
84 0, COEX_ASSOCIATED_IDLE_FLAGS
},
85 {COEX_CU_ASSOC_MANUAL_SCAN_RP
, COEX_CU_ASSOC_MANUAL_SCAN_WP
,
86 0, COEX_ASSOC_MANUAL_SCAN_FLAGS
},
87 {COEX_CU_ASSOC_AUTO_SCAN_RP
, COEX_CU_ASSOC_AUTO_SCAN_WP
,
88 0, COEX_ASSOC_AUTO_SCAN_FLAGS
},
89 {COEX_CU_ASSOC_ACTIVE_LEVEL_RP
, COEX_CU_ASSOC_ACTIVE_LEVEL_WP
,
90 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS
},
91 {COEX_CU_RF_ON_RP
, COEX_CU_RF_ON_WP
, 0, COEX_CU_RF_ON_FLAGS
},
92 {COEX_CU_RF_OFF_RP
, COEX_CU_RF_OFF_WP
, 0, COEX_RF_OFF_FLAGS
},
93 {COEX_CU_STAND_ALONE_DEBUG_RP
, COEX_CU_STAND_ALONE_DEBUG_WP
,
94 0, COEX_STAND_ALONE_DEBUG_FLAGS
},
95 {COEX_CU_IPAN_ASSOC_LEVEL_RP
, COEX_CU_IPAN_ASSOC_LEVEL_WP
,
96 0, COEX_IPAN_ASSOC_LEVEL_FLAGS
},
97 {COEX_CU_RSRVD1_RP
, COEX_CU_RSRVD1_WP
, 0, COEX_RSRVD1_FLAGS
},
98 {COEX_CU_RSRVD2_RP
, COEX_CU_RSRVD2_WP
, 0, COEX_RSRVD2_FLAGS
}
101 #define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \
102 [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
103 IWL_RATE_SISO_##s##M_PLCP, \
104 IWL_RATE_MIMO2_##s##M_PLCP,\
105 IWL_RATE_MIMO3_##s##M_PLCP,\
106 IWL_RATE_##r##M_IEEE, \
107 IWL_RATE_##ip##M_INDEX, \
108 IWL_RATE_##in##M_INDEX, \
109 IWL_RATE_##rp##M_INDEX, \
110 IWL_RATE_##rn##M_INDEX, \
111 IWL_RATE_##pp##M_INDEX, \
112 IWL_RATE_##np##M_INDEX }
115 EXPORT_SYMBOL(iwl_debug_level
);
117 static irqreturn_t
iwl_isr(int irq
, void *data
);
121 * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate
123 * If there isn't a valid next or previous rate then INV is used which
124 * maps to IWL_RATE_INVALID
127 const struct iwl_rate_info iwl_rates
[IWL_RATE_COUNT
] = {
128 IWL_DECLARE_RATE_INFO(1, INV
, INV
, 2, INV
, 2, INV
, 2), /* 1mbps */
129 IWL_DECLARE_RATE_INFO(2, INV
, 1, 5, 1, 5, 1, 5), /* 2mbps */
130 IWL_DECLARE_RATE_INFO(5, INV
, 2, 6, 2, 11, 2, 11), /*5.5mbps */
131 IWL_DECLARE_RATE_INFO(11, INV
, 9, 12, 9, 12, 5, 18), /* 11mbps */
132 IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */
133 IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */
134 IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */
135 IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */
136 IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */
137 IWL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */
138 IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */
139 IWL_DECLARE_RATE_INFO(54, 54, 48, INV
, 48, INV
, 48, INV
),/* 54mbps */
140 IWL_DECLARE_RATE_INFO(60, 60, 48, INV
, 48, INV
, 48, INV
),/* 60mbps */
141 /* FIXME:RS: ^^ should be INV (legacy) */
143 EXPORT_SYMBOL(iwl_rates
);
146 * translate ucode response to mac80211 tx status control values
148 void iwl_hwrate_to_tx_control(struct iwl_priv
*priv
, u32 rate_n_flags
,
149 struct ieee80211_tx_info
*info
)
151 struct ieee80211_tx_rate
*r
= &info
->control
.rates
[0];
153 info
->antenna_sel_tx
=
154 ((rate_n_flags
& RATE_MCS_ANT_ABC_MSK
) >> RATE_MCS_ANT_POS
);
155 if (rate_n_flags
& RATE_MCS_HT_MSK
)
156 r
->flags
|= IEEE80211_TX_RC_MCS
;
157 if (rate_n_flags
& RATE_MCS_GF_MSK
)
158 r
->flags
|= IEEE80211_TX_RC_GREEN_FIELD
;
159 if (rate_n_flags
& RATE_MCS_HT40_MSK
)
160 r
->flags
|= IEEE80211_TX_RC_40_MHZ_WIDTH
;
161 if (rate_n_flags
& RATE_MCS_DUP_MSK
)
162 r
->flags
|= IEEE80211_TX_RC_DUP_DATA
;
163 if (rate_n_flags
& RATE_MCS_SGI_MSK
)
164 r
->flags
|= IEEE80211_TX_RC_SHORT_GI
;
165 r
->idx
= iwl_hwrate_to_mac80211_idx(rate_n_flags
, info
->band
);
167 EXPORT_SYMBOL(iwl_hwrate_to_tx_control
);
169 int iwl_hwrate_to_plcp_idx(u32 rate_n_flags
)
174 if (rate_n_flags
& RATE_MCS_HT_MSK
) {
175 idx
= (rate_n_flags
& 0xff);
177 if (idx
>= IWL_RATE_MIMO3_6M_PLCP
)
178 idx
= idx
- IWL_RATE_MIMO3_6M_PLCP
;
179 else if (idx
>= IWL_RATE_MIMO2_6M_PLCP
)
180 idx
= idx
- IWL_RATE_MIMO2_6M_PLCP
;
182 idx
+= IWL_FIRST_OFDM_RATE
;
183 /* skip 9M not supported in ht*/
184 if (idx
>= IWL_RATE_9M_INDEX
)
186 if ((idx
>= IWL_FIRST_OFDM_RATE
) && (idx
<= IWL_LAST_OFDM_RATE
))
189 /* legacy rate format, search for match in table */
191 for (idx
= 0; idx
< ARRAY_SIZE(iwl_rates
); idx
++)
192 if (iwl_rates
[idx
].plcp
== (rate_n_flags
& 0xFF))
198 EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx
);
200 int iwl_hwrate_to_mac80211_idx(u32 rate_n_flags
, enum ieee80211_band band
)
205 /* HT rate format: mac80211 wants an MCS number, which is just LSB */
206 if (rate_n_flags
& RATE_MCS_HT_MSK
) {
207 idx
= (rate_n_flags
& 0xff);
209 /* Legacy rate format, search for match in table */
211 if (band
== IEEE80211_BAND_5GHZ
)
212 band_offset
= IWL_FIRST_OFDM_RATE
;
213 for (idx
= band_offset
; idx
< IWL_RATE_COUNT_LEGACY
; idx
++)
214 if (iwl_rates
[idx
].plcp
== (rate_n_flags
& 0xFF))
215 return idx
- band_offset
;
221 u8
iwl_toggle_tx_ant(struct iwl_priv
*priv
, u8 ant
)
225 for (i
= 0; i
< RATE_ANT_NUM
- 1; i
++) {
226 ind
= (ind
+ 1) < RATE_ANT_NUM
? ind
+ 1 : 0;
227 if (priv
->hw_params
.valid_tx_ant
& BIT(ind
))
232 EXPORT_SYMBOL(iwl_toggle_tx_ant
);
234 const u8 iwl_bcast_addr
[ETH_ALEN
] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
235 EXPORT_SYMBOL(iwl_bcast_addr
);
238 /* This function both allocates and initializes hw and priv. */
239 struct ieee80211_hw
*iwl_alloc_all(struct iwl_cfg
*cfg
,
240 struct ieee80211_ops
*hw_ops
)
242 struct iwl_priv
*priv
;
244 /* mac80211 allocates memory for this device instance, including
245 * space for this driver's private structure */
246 struct ieee80211_hw
*hw
=
247 ieee80211_alloc_hw(sizeof(struct iwl_priv
), hw_ops
);
249 printk(KERN_ERR
"%s: Can not allocate network device\n",
260 EXPORT_SYMBOL(iwl_alloc_all
);
262 void iwl_hw_detect(struct iwl_priv
*priv
)
264 priv
->hw_rev
= _iwl_read32(priv
, CSR_HW_REV
);
265 priv
->hw_wa_rev
= _iwl_read32(priv
, CSR_HW_REV_WA_REG
);
266 pci_read_config_byte(priv
->pci_dev
, PCI_REVISION_ID
, &priv
->rev_id
);
268 EXPORT_SYMBOL(iwl_hw_detect
);
270 int iwl_hw_nic_init(struct iwl_priv
*priv
)
273 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
277 spin_lock_irqsave(&priv
->lock
, flags
);
278 priv
->cfg
->ops
->lib
->apm_ops
.init(priv
);
280 /* Set interrupt coalescing calibration timer to default (512 usecs) */
281 iwl_write8(priv
, CSR_INT_COALESCING
, IWL_HOST_INT_CALIB_TIMEOUT_DEF
);
283 spin_unlock_irqrestore(&priv
->lock
, flags
);
285 ret
= priv
->cfg
->ops
->lib
->apm_ops
.set_pwr_src(priv
, IWL_PWR_SRC_VMAIN
);
287 priv
->cfg
->ops
->lib
->apm_ops
.config(priv
);
289 /* Allocate the RX queue, or reset if it is already allocated */
291 ret
= iwl_rx_queue_alloc(priv
);
293 IWL_ERR(priv
, "Unable to initialize Rx queue\n");
297 iwl_rx_queue_reset(priv
, rxq
);
299 iwl_rx_replenish(priv
);
301 iwl_rx_init(priv
, rxq
);
303 spin_lock_irqsave(&priv
->lock
, flags
);
305 rxq
->need_update
= 1;
306 iwl_rx_queue_update_write_ptr(priv
, rxq
);
308 spin_unlock_irqrestore(&priv
->lock
, flags
);
310 /* Allocate or reset and init all Tx and Command queues */
312 ret
= iwl_txq_ctx_alloc(priv
);
316 iwl_txq_ctx_reset(priv
);
318 set_bit(STATUS_INIT
, &priv
->status
);
322 EXPORT_SYMBOL(iwl_hw_nic_init
);
327 void iwl_activate_qos(struct iwl_priv
*priv
, u8 force
)
329 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
332 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
334 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
335 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
336 priv
->qos_data
.def_qos_parm
.qos_flags
|=
337 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
338 if (priv
->qos_data
.qos_active
)
339 priv
->qos_data
.def_qos_parm
.qos_flags
|=
340 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
342 if (priv
->current_ht_config
.is_ht
)
343 priv
->qos_data
.def_qos_parm
.qos_flags
|= QOS_PARAM_FLG_TGN_MSK
;
345 if (force
|| iwl_is_associated(priv
)) {
346 IWL_DEBUG_QOS(priv
, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
347 priv
->qos_data
.qos_active
,
348 priv
->qos_data
.def_qos_parm
.qos_flags
);
350 iwl_send_cmd_pdu_async(priv
, REPLY_QOS_PARAM
,
351 sizeof(struct iwl_qosparam_cmd
),
352 &priv
->qos_data
.def_qos_parm
, NULL
);
355 EXPORT_SYMBOL(iwl_activate_qos
);
358 * AC CWmin CW max AIFSN TXOP Limit TXOP Limit
359 * (802.11b) (802.11a/g)
360 * AC_BK 15 1023 7 0 0
361 * AC_BE 15 1023 3 0 0
362 * AC_VI 7 15 2 6.016ms 3.008ms
363 * AC_VO 3 7 2 3.264ms 1.504ms
365 void iwl_reset_qos(struct iwl_priv
*priv
)
370 bool is_legacy
= false;
374 spin_lock_irqsave(&priv
->lock
, flags
);
375 /* QoS always active in AP and ADHOC mode
376 * In STA mode wait for association
378 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
||
379 priv
->iw_mode
== NL80211_IFTYPE_AP
)
380 priv
->qos_data
.qos_active
= 1;
382 priv
->qos_data
.qos_active
= 0;
384 /* check for legacy mode */
385 if ((priv
->iw_mode
== NL80211_IFTYPE_ADHOC
&&
386 (priv
->active_rate
& IWL_OFDM_RATES_MASK
) == 0) ||
387 (priv
->iw_mode
== NL80211_IFTYPE_STATION
&&
388 (priv
->staging_rxon
.flags
& RXON_FLG_SHORT_SLOT_MSK
) == 0)) {
393 if (priv
->qos_data
.qos_active
)
397 priv
->qos_data
.def_qos_parm
.ac
[0].cw_min
= cpu_to_le16(cw_min
);
398 priv
->qos_data
.def_qos_parm
.ac
[0].cw_max
= cpu_to_le16(cw_max
);
399 priv
->qos_data
.def_qos_parm
.ac
[0].aifsn
= aifs
;
400 priv
->qos_data
.def_qos_parm
.ac
[0].edca_txop
= 0;
401 priv
->qos_data
.def_qos_parm
.ac
[0].reserved1
= 0;
403 if (priv
->qos_data
.qos_active
) {
406 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
= cpu_to_le16(cw_min
);
407 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
= cpu_to_le16(cw_max
);
408 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 7;
409 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
410 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
414 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
415 cpu_to_le16((cw_min
+ 1) / 2 - 1);
416 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
418 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
420 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
423 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
425 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
429 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
430 cpu_to_le16((cw_min
+ 1) / 4 - 1);
431 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
432 cpu_to_le16((cw_min
+ 1) / 2 - 1);
433 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
434 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
436 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
439 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
442 for (i
= 1; i
< 4; i
++) {
443 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
445 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
447 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= aifs
;
448 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
449 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
452 IWL_DEBUG_QOS(priv
, "set QoS to default \n");
454 spin_unlock_irqrestore(&priv
->lock
, flags
);
456 EXPORT_SYMBOL(iwl_reset_qos
);
458 #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
459 #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
460 static void iwlcore_init_ht_hw_capab(const struct iwl_priv
*priv
,
461 struct ieee80211_sta_ht_cap
*ht_info
,
462 enum ieee80211_band band
)
464 u16 max_bit_rate
= 0;
465 u8 rx_chains_num
= priv
->hw_params
.rx_chains_num
;
466 u8 tx_chains_num
= priv
->hw_params
.tx_chains_num
;
469 memset(&ht_info
->mcs
, 0, sizeof(ht_info
->mcs
));
471 ht_info
->ht_supported
= true;
473 if (priv
->cfg
->ht_greenfield_support
)
474 ht_info
->cap
|= IEEE80211_HT_CAP_GRN_FLD
;
475 ht_info
->cap
|= IEEE80211_HT_CAP_SGI_20
;
476 max_bit_rate
= MAX_BIT_RATE_20_MHZ
;
477 if (priv
->hw_params
.ht40_channel
& BIT(band
)) {
478 ht_info
->cap
|= IEEE80211_HT_CAP_SUP_WIDTH_20_40
;
479 ht_info
->cap
|= IEEE80211_HT_CAP_SGI_40
;
480 ht_info
->mcs
.rx_mask
[4] = 0x01;
481 max_bit_rate
= MAX_BIT_RATE_40_MHZ
;
484 if (priv
->cfg
->mod_params
->amsdu_size_8K
)
485 ht_info
->cap
|= IEEE80211_HT_CAP_MAX_AMSDU
;
487 ht_info
->ampdu_factor
= CFG_HT_RX_AMPDU_FACTOR_DEF
;
488 ht_info
->ampdu_density
= CFG_HT_MPDU_DENSITY_DEF
;
490 ht_info
->mcs
.rx_mask
[0] = 0xFF;
491 if (rx_chains_num
>= 2)
492 ht_info
->mcs
.rx_mask
[1] = 0xFF;
493 if (rx_chains_num
>= 3)
494 ht_info
->mcs
.rx_mask
[2] = 0xFF;
496 /* Highest supported Rx data rate */
497 max_bit_rate
*= rx_chains_num
;
498 WARN_ON(max_bit_rate
& ~IEEE80211_HT_MCS_RX_HIGHEST_MASK
);
499 ht_info
->mcs
.rx_highest
= cpu_to_le16(max_bit_rate
);
501 /* Tx MCS capabilities */
502 ht_info
->mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
503 if (tx_chains_num
!= rx_chains_num
) {
504 ht_info
->mcs
.tx_params
|= IEEE80211_HT_MCS_TX_RX_DIFF
;
505 ht_info
->mcs
.tx_params
|= ((tx_chains_num
- 1) <<
506 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
);
511 * iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom
513 int iwlcore_init_geos(struct iwl_priv
*priv
)
515 struct iwl_channel_info
*ch
;
516 struct ieee80211_supported_band
*sband
;
517 struct ieee80211_channel
*channels
;
518 struct ieee80211_channel
*geo_ch
;
519 struct ieee80211_rate
*rates
;
522 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
523 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
524 IWL_DEBUG_INFO(priv
, "Geography modes already initialized.\n");
525 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
529 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
530 priv
->channel_count
, GFP_KERNEL
);
534 rates
= kzalloc((sizeof(struct ieee80211_rate
) * IWL_RATE_COUNT_LEGACY
),
541 /* 5.2GHz channels start after the 2.4GHz channels */
542 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
543 sband
->channels
= &channels
[ARRAY_SIZE(iwl_eeprom_band_1
)];
545 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
546 sband
->n_bitrates
= IWL_RATE_COUNT_LEGACY
- IWL_FIRST_OFDM_RATE
;
548 if (priv
->cfg
->sku
& IWL_SKU_N
)
549 iwlcore_init_ht_hw_capab(priv
, &sband
->ht_cap
,
550 IEEE80211_BAND_5GHZ
);
552 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
553 sband
->channels
= channels
;
555 sband
->bitrates
= rates
;
556 sband
->n_bitrates
= IWL_RATE_COUNT_LEGACY
;
558 if (priv
->cfg
->sku
& IWL_SKU_N
)
559 iwlcore_init_ht_hw_capab(priv
, &sband
->ht_cap
,
560 IEEE80211_BAND_2GHZ
);
562 priv
->ieee_channels
= channels
;
563 priv
->ieee_rates
= rates
;
565 for (i
= 0; i
< priv
->channel_count
; i
++) {
566 ch
= &priv
->channel_info
[i
];
568 /* FIXME: might be removed if scan is OK */
569 if (!is_channel_valid(ch
))
572 if (is_channel_a_band(ch
))
573 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
575 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
577 geo_ch
= &sband
->channels
[sband
->n_channels
++];
579 geo_ch
->center_freq
=
580 ieee80211_channel_to_frequency(ch
->channel
);
581 geo_ch
->max_power
= ch
->max_power_avg
;
582 geo_ch
->max_antenna_gain
= 0xff;
583 geo_ch
->hw_value
= ch
->channel
;
585 if (is_channel_valid(ch
)) {
586 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
587 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
589 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
590 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
592 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
593 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
595 geo_ch
->flags
|= ch
->ht40_extension_channel
;
597 if (ch
->max_power_avg
> priv
->tx_power_device_lmt
)
598 priv
->tx_power_device_lmt
= ch
->max_power_avg
;
600 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
603 IWL_DEBUG_INFO(priv
, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n",
604 ch
->channel
, geo_ch
->center_freq
,
605 is_channel_a_band(ch
) ? "5.2" : "2.4",
606 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
607 "restricted" : "valid",
611 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) &&
612 priv
->cfg
->sku
& IWL_SKU_A
) {
613 IWL_INFO(priv
, "Incorrectly detected BG card as ABG. "
614 "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
615 priv
->pci_dev
->device
,
616 priv
->pci_dev
->subsystem_device
);
617 priv
->cfg
->sku
&= ~IWL_SKU_A
;
620 IWL_INFO(priv
, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
621 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
622 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
624 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
628 EXPORT_SYMBOL(iwlcore_init_geos
);
631 * iwlcore_free_geos - undo allocations in iwlcore_init_geos
633 void iwlcore_free_geos(struct iwl_priv
*priv
)
635 kfree(priv
->ieee_channels
);
636 kfree(priv
->ieee_rates
);
637 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
639 EXPORT_SYMBOL(iwlcore_free_geos
);
642 * iwlcore_rts_tx_cmd_flag: Set rts/cts. 3945 and 4965 only share this
645 void iwlcore_rts_tx_cmd_flag(struct ieee80211_tx_info
*info
,
648 if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_USE_RTS_CTS
) {
649 *tx_flags
|= TX_CMD_FLG_RTS_MSK
;
650 *tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
651 } else if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_USE_CTS_PROTECT
) {
652 *tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
653 *tx_flags
|= TX_CMD_FLG_CTS_MSK
;
656 EXPORT_SYMBOL(iwlcore_rts_tx_cmd_flag
);
658 static bool is_single_rx_stream(struct iwl_priv
*priv
)
660 return priv
->current_ht_config
.smps
== IEEE80211_SMPS_STATIC
||
661 priv
->current_ht_config
.single_chain_sufficient
;
664 static u8
iwl_is_channel_extension(struct iwl_priv
*priv
,
665 enum ieee80211_band band
,
666 u16 channel
, u8 extension_chan_offset
)
668 const struct iwl_channel_info
*ch_info
;
670 ch_info
= iwl_get_channel_info(priv
, band
, channel
);
671 if (!is_channel_valid(ch_info
))
674 if (extension_chan_offset
== IEEE80211_HT_PARAM_CHA_SEC_ABOVE
)
675 return !(ch_info
->ht40_extension_channel
&
676 IEEE80211_CHAN_NO_HT40PLUS
);
677 else if (extension_chan_offset
== IEEE80211_HT_PARAM_CHA_SEC_BELOW
)
678 return !(ch_info
->ht40_extension_channel
&
679 IEEE80211_CHAN_NO_HT40MINUS
);
684 u8
iwl_is_ht40_tx_allowed(struct iwl_priv
*priv
,
685 struct ieee80211_sta_ht_cap
*sta_ht_inf
)
687 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
689 if (!ht_conf
->is_ht
|| !ht_conf
->is_40mhz
)
692 /* We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40
693 * the bit will not set if it is pure 40MHz case
696 if (!sta_ht_inf
->ht_supported
)
699 #ifdef CONFIG_IWLWIFI_DEBUG
700 if (priv
->disable_ht40
)
703 return iwl_is_channel_extension(priv
, priv
->band
,
704 le16_to_cpu(priv
->staging_rxon
.channel
),
705 ht_conf
->extension_chan_offset
);
707 EXPORT_SYMBOL(iwl_is_ht40_tx_allowed
);
709 static u16
iwl_adjust_beacon_interval(u16 beacon_val
, u16 max_beacon_val
)
712 u16 beacon_factor
= 0;
714 beacon_factor
= (beacon_val
+ max_beacon_val
) / max_beacon_val
;
715 new_val
= beacon_val
/ beacon_factor
;
718 new_val
= max_beacon_val
;
723 void iwl_setup_rxon_timing(struct iwl_priv
*priv
)
726 s32 interval_tm
, rem
;
728 struct ieee80211_conf
*conf
= NULL
;
731 conf
= ieee80211_get_hw_conf(priv
->hw
);
733 spin_lock_irqsave(&priv
->lock
, flags
);
734 priv
->rxon_timing
.timestamp
= cpu_to_le64(priv
->timestamp
);
735 priv
->rxon_timing
.listen_interval
= cpu_to_le16(conf
->listen_interval
);
737 if (priv
->iw_mode
== NL80211_IFTYPE_STATION
) {
738 beacon_int
= priv
->beacon_int
;
739 priv
->rxon_timing
.atim_window
= 0;
741 beacon_int
= priv
->vif
->bss_conf
.beacon_int
;
743 /* TODO: we need to get atim_window from upper stack
744 * for now we set to 0 */
745 priv
->rxon_timing
.atim_window
= 0;
748 beacon_int
= iwl_adjust_beacon_interval(beacon_int
,
749 priv
->hw_params
.max_beacon_itrvl
* 1024);
750 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(beacon_int
);
752 tsf
= priv
->timestamp
; /* tsf is modifed by do_div: copy it */
753 interval_tm
= beacon_int
* 1024;
754 rem
= do_div(tsf
, interval_tm
);
755 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(interval_tm
- rem
);
757 spin_unlock_irqrestore(&priv
->lock
, flags
);
758 IWL_DEBUG_ASSOC(priv
,
759 "beacon interval %d beacon timer %d beacon tim %d\n",
760 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
761 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
762 le16_to_cpu(priv
->rxon_timing
.atim_window
));
764 EXPORT_SYMBOL(iwl_setup_rxon_timing
);
766 void iwl_set_rxon_hwcrypto(struct iwl_priv
*priv
, int hw_decrypt
)
768 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
771 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
773 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
776 EXPORT_SYMBOL(iwl_set_rxon_hwcrypto
);
779 * iwl_check_rxon_cmd - validate RXON structure is valid
781 * NOTE: This is really only useful during development and can eventually
782 * be #ifdef'd out once the driver is stable and folks aren't actively
785 int iwl_check_rxon_cmd(struct iwl_priv
*priv
)
789 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
791 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
792 error
|= le32_to_cpu(rxon
->flags
&
793 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
794 RXON_FLG_RADAR_DETECT_MSK
));
796 IWL_WARN(priv
, "check 24G fields %d | %d\n",
799 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
800 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
802 IWL_WARN(priv
, "check 52 fields %d | %d\n",
804 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
806 IWL_WARN(priv
, "check 52 CCK %d | %d\n",
809 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
811 IWL_WARN(priv
, "check mac addr %d | %d\n", counter
++, error
);
813 /* make sure basic rates 6Mbps and 1Mbps are supported */
814 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
815 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
817 IWL_WARN(priv
, "check basic rate %d | %d\n", counter
++, error
);
819 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
821 IWL_WARN(priv
, "check assoc id %d | %d\n", counter
++, error
);
823 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
824 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
826 IWL_WARN(priv
, "check CCK and short slot %d | %d\n",
829 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
830 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
832 IWL_WARN(priv
, "check CCK & auto detect %d | %d\n",
835 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
836 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
838 IWL_WARN(priv
, "check TGG and auto detect %d | %d\n",
842 IWL_WARN(priv
, "Tuning to channel %d\n",
843 le16_to_cpu(rxon
->channel
));
846 IWL_ERR(priv
, "Not a valid iwl_rxon_assoc_cmd field values\n");
851 EXPORT_SYMBOL(iwl_check_rxon_cmd
);
854 * iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
855 * @priv: staging_rxon is compared to active_rxon
857 * If the RXON structure is changing enough to require a new tune,
858 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
859 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
861 int iwl_full_rxon_required(struct iwl_priv
*priv
)
864 /* These items are only settable from the full RXON command */
865 if (!(iwl_is_associated(priv
)) ||
866 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
867 priv
->active_rxon
.bssid_addr
) ||
868 compare_ether_addr(priv
->staging_rxon
.node_addr
,
869 priv
->active_rxon
.node_addr
) ||
870 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
871 priv
->active_rxon
.wlap_bssid_addr
) ||
872 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
873 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
874 (priv
->staging_rxon
.air_propagation
!=
875 priv
->active_rxon
.air_propagation
) ||
876 (priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
!=
877 priv
->active_rxon
.ofdm_ht_single_stream_basic_rates
) ||
878 (priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
!=
879 priv
->active_rxon
.ofdm_ht_dual_stream_basic_rates
) ||
880 (priv
->staging_rxon
.ofdm_ht_triple_stream_basic_rates
!=
881 priv
->active_rxon
.ofdm_ht_triple_stream_basic_rates
) ||
882 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
885 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
886 * be updated with the RXON_ASSOC command -- however only some
887 * flag transitions are allowed using RXON_ASSOC */
889 /* Check if we are not switching bands */
890 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
891 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
894 /* Check if we are switching association toggle */
895 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
896 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
901 EXPORT_SYMBOL(iwl_full_rxon_required
);
903 u8
iwl_rate_get_lowest_plcp(struct iwl_priv
*priv
)
909 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
910 rate_mask
= priv
->active_rate_basic
& IWL_CCK_RATES_MASK
;
912 rate_mask
= priv
->active_rate_basic
& IWL_OFDM_RATES_MASK
;
914 /* Find lowest valid rate */
915 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
916 i
= iwl_rates
[i
].next_ieee
) {
917 if (rate_mask
& (1 << i
))
918 return iwl_rates
[i
].plcp
;
921 /* No valid rate was found. Assign the lowest one */
922 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
923 return IWL_RATE_1M_PLCP
;
925 return IWL_RATE_6M_PLCP
;
927 EXPORT_SYMBOL(iwl_rate_get_lowest_plcp
);
929 void iwl_set_rxon_ht(struct iwl_priv
*priv
, struct iwl_ht_config
*ht_conf
)
931 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
933 if (!ht_conf
->is_ht
) {
934 rxon
->flags
&= ~(RXON_FLG_CHANNEL_MODE_MSK
|
935 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
|
936 RXON_FLG_HT40_PROT_MSK
|
937 RXON_FLG_HT_PROT_MSK
);
941 /* FIXME: if the definition of ht_protection changed, the "translation"
942 * will be needed for rxon->flags
944 rxon
->flags
|= cpu_to_le32(ht_conf
->ht_protection
<< RXON_FLG_HT_OPERATING_MODE_POS
);
946 /* Set up channel bandwidth:
947 * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */
948 /* clear the HT channel mode before set the mode */
949 rxon
->flags
&= ~(RXON_FLG_CHANNEL_MODE_MSK
|
950 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
);
951 if (iwl_is_ht40_tx_allowed(priv
, NULL
)) {
953 if (ht_conf
->ht_protection
== IEEE80211_HT_OP_MODE_PROTECTION_20MHZ
) {
954 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_PURE_40
;
955 /* Note: control channel is opposite of extension channel */
956 switch (ht_conf
->extension_chan_offset
) {
957 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE
:
958 rxon
->flags
&= ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
;
960 case IEEE80211_HT_PARAM_CHA_SEC_BELOW
:
961 rxon
->flags
|= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
;
965 /* Note: control channel is opposite of extension channel */
966 switch (ht_conf
->extension_chan_offset
) {
967 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE
:
968 rxon
->flags
&= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
);
969 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_MIXED
;
971 case IEEE80211_HT_PARAM_CHA_SEC_BELOW
:
972 rxon
->flags
|= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
;
973 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_MIXED
;
975 case IEEE80211_HT_PARAM_CHA_SEC_NONE
:
977 /* channel location only valid if in Mixed mode */
978 IWL_ERR(priv
, "invalid extension channel offset\n");
983 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_LEGACY
;
986 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
987 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
989 IWL_DEBUG_ASSOC(priv
, "rxon flags 0x%X operation mode :0x%X "
990 "extension channel offset 0x%x\n",
991 le32_to_cpu(rxon
->flags
), ht_conf
->ht_protection
,
992 ht_conf
->extension_chan_offset
);
995 EXPORT_SYMBOL(iwl_set_rxon_ht
);
997 #define IWL_NUM_RX_CHAINS_MULTIPLE 3
998 #define IWL_NUM_RX_CHAINS_SINGLE 2
999 #define IWL_NUM_IDLE_CHAINS_DUAL 2
1000 #define IWL_NUM_IDLE_CHAINS_SINGLE 1
1003 * Determine how many receiver/antenna chains to use.
1005 * More provides better reception via diversity. Fewer saves power
1006 * at the expense of throughput, but only when not in powersave to
1009 * MIMO (dual stream) requires at least 2, but works better with 3.
1010 * This does not determine *which* chains to use, just how many.
1012 static int iwl_get_active_rx_chain_count(struct iwl_priv
*priv
)
1014 /* # of Rx chains to use when expecting MIMO. */
1015 if (is_single_rx_stream(priv
))
1016 return IWL_NUM_RX_CHAINS_SINGLE
;
1018 return IWL_NUM_RX_CHAINS_MULTIPLE
;
1022 * When we are in power saving mode, unless device support spatial
1023 * multiplexing power save, use the active count for rx chain count.
1025 static int iwl_get_idle_rx_chain_count(struct iwl_priv
*priv
, int active_cnt
)
1027 /* # Rx chains when idling, depending on SMPS mode */
1028 switch (priv
->current_ht_config
.smps
) {
1029 case IEEE80211_SMPS_STATIC
:
1030 case IEEE80211_SMPS_DYNAMIC
:
1031 return IWL_NUM_IDLE_CHAINS_SINGLE
;
1032 case IEEE80211_SMPS_OFF
:
1035 WARN(1, "invalid SMPS mode %d",
1036 priv
->current_ht_config
.smps
);
1041 /* up to 4 chains */
1042 static u8
iwl_count_chain_bitmap(u32 chain_bitmap
)
1045 res
= (chain_bitmap
& BIT(0)) >> 0;
1046 res
+= (chain_bitmap
& BIT(1)) >> 1;
1047 res
+= (chain_bitmap
& BIT(2)) >> 2;
1048 res
+= (chain_bitmap
& BIT(3)) >> 3;
1053 * iwl_is_monitor_mode - Determine if interface in monitor mode
1055 * priv->iw_mode is set in add_interface, but add_interface is
1056 * never called for monitor mode. The only way mac80211 informs us about
1057 * monitor mode is through configuring filters (call to configure_filter).
1059 bool iwl_is_monitor_mode(struct iwl_priv
*priv
)
1061 return !!(priv
->staging_rxon
.filter_flags
& RXON_FILTER_PROMISC_MSK
);
1063 EXPORT_SYMBOL(iwl_is_monitor_mode
);
1066 * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
1068 * Selects how many and which Rx receivers/antennas/chains to use.
1069 * This should not be used for scan command ... it puts data in wrong place.
1071 void iwl_set_rxon_chain(struct iwl_priv
*priv
)
1073 bool is_single
= is_single_rx_stream(priv
);
1074 bool is_cam
= !test_bit(STATUS_POWER_PMI
, &priv
->status
);
1075 u8 idle_rx_cnt
, active_rx_cnt
, valid_rx_cnt
;
1079 /* Tell uCode which antennas are actually connected.
1080 * Before first association, we assume all antennas are connected.
1081 * Just after first association, iwl_chain_noise_calibration()
1082 * checks which antennas actually *are* connected. */
1083 if (priv
->chain_noise_data
.active_chains
)
1084 active_chains
= priv
->chain_noise_data
.active_chains
;
1086 active_chains
= priv
->hw_params
.valid_rx_ant
;
1088 rx_chain
= active_chains
<< RXON_RX_CHAIN_VALID_POS
;
1090 /* How many receivers should we use? */
1091 active_rx_cnt
= iwl_get_active_rx_chain_count(priv
);
1092 idle_rx_cnt
= iwl_get_idle_rx_chain_count(priv
, active_rx_cnt
);
1095 /* correct rx chain count according hw settings
1096 * and chain noise calibration
1098 valid_rx_cnt
= iwl_count_chain_bitmap(active_chains
);
1099 if (valid_rx_cnt
< active_rx_cnt
)
1100 active_rx_cnt
= valid_rx_cnt
;
1102 if (valid_rx_cnt
< idle_rx_cnt
)
1103 idle_rx_cnt
= valid_rx_cnt
;
1105 rx_chain
|= active_rx_cnt
<< RXON_RX_CHAIN_MIMO_CNT_POS
;
1106 rx_chain
|= idle_rx_cnt
<< RXON_RX_CHAIN_CNT_POS
;
1108 /* copied from 'iwl_bg_request_scan()' */
1109 /* Force use of chains B and C (0x6) for Rx for 4965
1110 * Avoid A (0x1) because of its off-channel reception on A-band.
1111 * MIMO is not used here, but value is required */
1112 if (iwl_is_monitor_mode(priv
) &&
1113 !(priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) &&
1114 ((priv
->hw_rev
& CSR_HW_REV_TYPE_MSK
) == CSR_HW_REV_TYPE_4965
)) {
1115 rx_chain
= ANT_ABC
<< RXON_RX_CHAIN_VALID_POS
;
1116 rx_chain
|= ANT_BC
<< RXON_RX_CHAIN_FORCE_SEL_POS
;
1117 rx_chain
|= ANT_ABC
<< RXON_RX_CHAIN_FORCE_MIMO_SEL_POS
;
1118 rx_chain
|= 0x1 << RXON_RX_CHAIN_DRIVER_FORCE_POS
;
1121 priv
->staging_rxon
.rx_chain
= cpu_to_le16(rx_chain
);
1123 if (!is_single
&& (active_rx_cnt
>= IWL_NUM_RX_CHAINS_SINGLE
) && is_cam
)
1124 priv
->staging_rxon
.rx_chain
|= RXON_RX_CHAIN_MIMO_FORCE_MSK
;
1126 priv
->staging_rxon
.rx_chain
&= ~RXON_RX_CHAIN_MIMO_FORCE_MSK
;
1128 IWL_DEBUG_ASSOC(priv
, "rx_chain=0x%X active=%d idle=%d\n",
1129 priv
->staging_rxon
.rx_chain
,
1130 active_rx_cnt
, idle_rx_cnt
);
1132 WARN_ON(active_rx_cnt
== 0 || idle_rx_cnt
== 0 ||
1133 active_rx_cnt
< idle_rx_cnt
);
1135 EXPORT_SYMBOL(iwl_set_rxon_chain
);
1138 * iwl_set_rxon_channel - Set the phymode and channel values in staging RXON
1139 * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
1140 * @channel: Any channel valid for the requested phymode
1142 * In addition to setting the staging RXON, priv->phymode is also set.
1144 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
1145 * in the staging RXON flag structure based on the phymode
1147 int iwl_set_rxon_channel(struct iwl_priv
*priv
, struct ieee80211_channel
*ch
)
1149 enum ieee80211_band band
= ch
->band
;
1150 u16 channel
= ieee80211_frequency_to_channel(ch
->center_freq
);
1152 if (!iwl_get_channel_info(priv
, band
, channel
)) {
1153 IWL_DEBUG_INFO(priv
, "Could not set channel to %d [%d]\n",
1158 if ((le16_to_cpu(priv
->staging_rxon
.channel
) == channel
) &&
1159 (priv
->band
== band
))
1162 priv
->staging_rxon
.channel
= cpu_to_le16(channel
);
1163 if (band
== IEEE80211_BAND_5GHZ
)
1164 priv
->staging_rxon
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
1166 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
1170 IWL_DEBUG_INFO(priv
, "Staging channel set to %d [%d]\n", channel
, band
);
1174 EXPORT_SYMBOL(iwl_set_rxon_channel
);
1176 void iwl_set_flags_for_band(struct iwl_priv
*priv
,
1177 enum ieee80211_band band
)
1179 if (band
== IEEE80211_BAND_5GHZ
) {
1180 priv
->staging_rxon
.flags
&=
1181 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
1182 | RXON_FLG_CCK_MSK
);
1183 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1185 /* Copied from iwl_post_associate() */
1186 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
1187 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1189 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1191 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
1192 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1194 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
1195 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
1196 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
1201 * initialize rxon structure with default values from eeprom
1203 void iwl_connection_init_rx_config(struct iwl_priv
*priv
, int mode
)
1205 const struct iwl_channel_info
*ch_info
;
1207 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
1210 case NL80211_IFTYPE_AP
:
1211 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
1214 case NL80211_IFTYPE_STATION
:
1215 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
1216 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
1219 case NL80211_IFTYPE_ADHOC
:
1220 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
1221 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
1222 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
1223 RXON_FILTER_ACCEPT_GRP_MSK
;
1227 IWL_ERR(priv
, "Unsupported interface type %d\n", mode
);
1232 /* TODO: Figure out when short_preamble would be set and cache from
1234 if (!hw_to_local(priv
->hw
)->short_preamble
)
1235 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
1237 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
1240 ch_info
= iwl_get_channel_info(priv
, priv
->band
,
1241 le16_to_cpu(priv
->active_rxon
.channel
));
1244 ch_info
= &priv
->channel_info
[0];
1247 * in some case A channels are all non IBSS
1248 * in this case force B/G channel
1250 if ((priv
->iw_mode
== NL80211_IFTYPE_ADHOC
) &&
1251 !(is_channel_ibss(ch_info
)))
1252 ch_info
= &priv
->channel_info
[0];
1254 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
1255 priv
->band
= ch_info
->band
;
1257 iwl_set_flags_for_band(priv
, priv
->band
);
1259 priv
->staging_rxon
.ofdm_basic_rates
=
1260 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
1261 priv
->staging_rxon
.cck_basic_rates
=
1262 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
1264 /* clear both MIX and PURE40 mode flag */
1265 priv
->staging_rxon
.flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED
|
1266 RXON_FLG_CHANNEL_MODE_PURE_40
);
1267 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
1268 memcpy(priv
->staging_rxon
.wlap_bssid_addr
, priv
->mac_addr
, ETH_ALEN
);
1269 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
= 0xff;
1270 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
= 0xff;
1271 priv
->staging_rxon
.ofdm_ht_triple_stream_basic_rates
= 0xff;
1273 EXPORT_SYMBOL(iwl_connection_init_rx_config
);
1275 static void iwl_set_rate(struct iwl_priv
*priv
)
1277 const struct ieee80211_supported_band
*hw
= NULL
;
1278 struct ieee80211_rate
*rate
;
1281 hw
= iwl_get_hw_mode(priv
, priv
->band
);
1283 IWL_ERR(priv
, "Failed to set rate: unable to get hw mode\n");
1287 priv
->active_rate
= 0;
1288 priv
->active_rate_basic
= 0;
1290 for (i
= 0; i
< hw
->n_bitrates
; i
++) {
1291 rate
= &(hw
->bitrates
[i
]);
1292 if (rate
->hw_value
< IWL_RATE_COUNT_LEGACY
)
1293 priv
->active_rate
|= (1 << rate
->hw_value
);
1296 IWL_DEBUG_RATE(priv
, "Set active_rate = %0x, active_rate_basic = %0x\n",
1297 priv
->active_rate
, priv
->active_rate_basic
);
1300 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
1301 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
1304 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
1305 priv
->staging_rxon
.cck_basic_rates
=
1306 ((priv
->active_rate_basic
&
1307 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
1309 priv
->staging_rxon
.cck_basic_rates
=
1310 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
1312 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
1313 priv
->staging_rxon
.ofdm_basic_rates
=
1314 ((priv
->active_rate_basic
&
1315 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
1316 IWL_FIRST_OFDM_RATE
) & 0xFF;
1318 priv
->staging_rxon
.ofdm_basic_rates
=
1319 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
1322 void iwl_rx_csa(struct iwl_priv
*priv
, struct iwl_rx_mem_buffer
*rxb
)
1324 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
1325 struct iwl_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
1326 struct iwl_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
1328 if (priv
->switch_rxon
.switch_in_progress
) {
1329 if (!le32_to_cpu(csa
->status
) &&
1330 (csa
->channel
== priv
->switch_rxon
.channel
)) {
1331 rxon
->channel
= csa
->channel
;
1332 priv
->staging_rxon
.channel
= csa
->channel
;
1333 IWL_DEBUG_11H(priv
, "CSA notif: channel %d\n",
1334 le16_to_cpu(csa
->channel
));
1336 IWL_ERR(priv
, "CSA notif (fail) : channel %d\n",
1337 le16_to_cpu(csa
->channel
));
1339 priv
->switch_rxon
.switch_in_progress
= false;
1342 EXPORT_SYMBOL(iwl_rx_csa
);
1344 #ifdef CONFIG_IWLWIFI_DEBUG
1345 void iwl_print_rx_config_cmd(struct iwl_priv
*priv
)
1347 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
1349 IWL_DEBUG_RADIO(priv
, "RX CONFIG:\n");
1350 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
1351 IWL_DEBUG_RADIO(priv
, "u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
1352 IWL_DEBUG_RADIO(priv
, "u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
1353 IWL_DEBUG_RADIO(priv
, "u32 filter_flags: 0x%08x\n",
1354 le32_to_cpu(rxon
->filter_flags
));
1355 IWL_DEBUG_RADIO(priv
, "u8 dev_type: 0x%x\n", rxon
->dev_type
);
1356 IWL_DEBUG_RADIO(priv
, "u8 ofdm_basic_rates: 0x%02x\n",
1357 rxon
->ofdm_basic_rates
);
1358 IWL_DEBUG_RADIO(priv
, "u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
1359 IWL_DEBUG_RADIO(priv
, "u8[6] node_addr: %pM\n", rxon
->node_addr
);
1360 IWL_DEBUG_RADIO(priv
, "u8[6] bssid_addr: %pM\n", rxon
->bssid_addr
);
1361 IWL_DEBUG_RADIO(priv
, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
1363 EXPORT_SYMBOL(iwl_print_rx_config_cmd
);
1366 * iwl_irq_handle_error - called for HW or SW error interrupt from card
1368 void iwl_irq_handle_error(struct iwl_priv
*priv
)
1370 /* Set the FW error flag -- cleared on iwl_down */
1371 set_bit(STATUS_FW_ERROR
, &priv
->status
);
1373 /* Cancel currently queued command. */
1374 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
1376 priv
->cfg
->ops
->lib
->dump_nic_error_log(priv
);
1377 if (priv
->cfg
->ops
->lib
->dump_csr
)
1378 priv
->cfg
->ops
->lib
->dump_csr(priv
);
1379 if (priv
->cfg
->ops
->lib
->dump_fh
)
1380 priv
->cfg
->ops
->lib
->dump_fh(priv
, NULL
, false);
1381 priv
->cfg
->ops
->lib
->dump_nic_event_log(priv
, false, NULL
, false);
1382 #ifdef CONFIG_IWLWIFI_DEBUG
1383 if (iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
)
1384 iwl_print_rx_config_cmd(priv
);
1387 wake_up_interruptible(&priv
->wait_command_queue
);
1389 /* Keep the restart process from trying to send host
1390 * commands by clearing the INIT status bit */
1391 clear_bit(STATUS_READY
, &priv
->status
);
1393 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
1394 IWL_DEBUG(priv
, IWL_DL_FW_ERRORS
,
1395 "Restarting adapter due to uCode error.\n");
1397 if (priv
->cfg
->mod_params
->restart_fw
)
1398 queue_work(priv
->workqueue
, &priv
->restart
);
1401 EXPORT_SYMBOL(iwl_irq_handle_error
);
1403 int iwl_apm_stop_master(struct iwl_priv
*priv
)
1407 /* stop device's busmaster DMA activity */
1408 iwl_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_STOP_MASTER
);
1410 ret
= iwl_poll_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_MASTER_DISABLED
,
1411 CSR_RESET_REG_FLAG_MASTER_DISABLED
, 100);
1413 IWL_WARN(priv
, "Master Disable Timed Out, 100 usec\n");
1415 IWL_DEBUG_INFO(priv
, "stop master\n");
1419 EXPORT_SYMBOL(iwl_apm_stop_master
);
1421 void iwl_apm_stop(struct iwl_priv
*priv
)
1423 IWL_DEBUG_INFO(priv
, "Stop card, put in low power state\n");
1425 /* Stop device's DMA activity */
1426 iwl_apm_stop_master(priv
);
1428 /* Reset the entire device */
1429 iwl_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
1434 * Clear "initialization complete" bit to move adapter from
1435 * D0A* (powered-up Active) --> D0U* (Uninitialized) state.
1437 iwl_clear_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
1439 EXPORT_SYMBOL(iwl_apm_stop
);
1443 * Start up NIC's basic functionality after it has been reset
1444 * (e.g. after platform boot, or shutdown via iwl_apm_stop())
1445 * NOTE: This does not load uCode nor start the embedded processor
1447 int iwl_apm_init(struct iwl_priv
*priv
)
1452 IWL_DEBUG_INFO(priv
, "Init card's basic functions\n");
1455 * Use "set_bit" below rather than "write", to preserve any hardware
1456 * bits already set by default after reset.
1459 /* Disable L0S exit timer (platform NMI Work/Around) */
1460 iwl_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
1461 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER
);
1464 * Disable L0s without affecting L1;
1465 * don't wait for ICH L0s (ICH bug W/A)
1467 iwl_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
1468 CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX
);
1470 /* Set FH wait threshold to maximum (HW error during stress W/A) */
1471 iwl_set_bit(priv
, CSR_DBG_HPET_MEM_REG
, CSR_DBG_HPET_MEM_REG_VAL
);
1474 * Enable HAP INTA (interrupt from management bus) to
1475 * wake device's PCI Express link L1a -> L0s
1476 * NOTE: This is no-op for 3945 (non-existant bit)
1478 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
1479 CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A
);
1482 * HW bug W/A for instability in PCIe bus L0->L0S->L1 transition.
1483 * Check if BIOS (or OS) enabled L1-ASPM on this device.
1484 * If so (likely), disable L0S, so device moves directly L0->L1;
1485 * costs negligible amount of power savings.
1486 * If not (unlikely), enable L0S, so there is at least some
1487 * power savings, even without L1.
1489 if (priv
->cfg
->set_l0s
) {
1490 lctl
= iwl_pcie_link_ctl(priv
);
1491 if ((lctl
& PCI_CFG_LINK_CTRL_VAL_L1_EN
) ==
1492 PCI_CFG_LINK_CTRL_VAL_L1_EN
) {
1493 /* L1-ASPM enabled; disable(!) L0S */
1494 iwl_set_bit(priv
, CSR_GIO_REG
,
1495 CSR_GIO_REG_VAL_L0S_ENABLED
);
1496 IWL_DEBUG_POWER(priv
, "L1 Enabled; Disabling L0S\n");
1498 /* L1-ASPM disabled; enable(!) L0S */
1499 iwl_clear_bit(priv
, CSR_GIO_REG
,
1500 CSR_GIO_REG_VAL_L0S_ENABLED
);
1501 IWL_DEBUG_POWER(priv
, "L1 Disabled; Enabling L0S\n");
1505 /* Configure analog phase-lock-loop before activating to D0A */
1506 if (priv
->cfg
->pll_cfg_val
)
1507 iwl_set_bit(priv
, CSR_ANA_PLL_CFG
, priv
->cfg
->pll_cfg_val
);
1510 * Set "initialization complete" bit to move adapter from
1511 * D0U* --> D0A* (powered-up active) state.
1513 iwl_set_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
1516 * Wait for clock stabilization; once stabilized, access to
1517 * device-internal resources is supported, e.g. iwl_write_prph()
1518 * and accesses to uCode SRAM.
1520 ret
= iwl_poll_bit(priv
, CSR_GP_CNTRL
,
1521 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
,
1522 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
, 25000);
1524 IWL_DEBUG_INFO(priv
, "Failed to init the card\n");
1529 * Enable DMA and BSM (if used) clocks, wait for them to stabilize.
1530 * BSM (Boostrap State Machine) is only in 3945 and 4965;
1531 * later devices (i.e. 5000 and later) have non-volatile SRAM,
1532 * and don't need BSM to restore data after power-saving sleep.
1534 * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits
1535 * do not disable clocks. This preserves any hardware bits already
1536 * set by default in "CLK_CTRL_REG" after reset.
1538 if (priv
->cfg
->use_bsm
)
1539 iwl_write_prph(priv
, APMG_CLK_EN_REG
,
1540 APMG_CLK_VAL_DMA_CLK_RQT
| APMG_CLK_VAL_BSM_CLK_RQT
);
1542 iwl_write_prph(priv
, APMG_CLK_EN_REG
,
1543 APMG_CLK_VAL_DMA_CLK_RQT
);
1546 /* Disable L1-Active */
1547 iwl_set_bits_prph(priv
, APMG_PCIDEV_STT_REG
,
1548 APMG_PCIDEV_STT_VAL_L1_ACT_DIS
);
1553 EXPORT_SYMBOL(iwl_apm_init
);
1557 void iwl_configure_filter(struct ieee80211_hw
*hw
,
1558 unsigned int changed_flags
,
1559 unsigned int *total_flags
,
1562 struct iwl_priv
*priv
= hw
->priv
;
1563 __le32
*filter_flags
= &priv
->staging_rxon
.filter_flags
;
1565 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
1566 changed_flags
, *total_flags
);
1568 if (changed_flags
& (FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
)) {
1569 if (*total_flags
& (FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
))
1570 *filter_flags
|= RXON_FILTER_PROMISC_MSK
;
1572 *filter_flags
&= ~RXON_FILTER_PROMISC_MSK
;
1574 if (changed_flags
& FIF_ALLMULTI
) {
1575 if (*total_flags
& FIF_ALLMULTI
)
1576 *filter_flags
|= RXON_FILTER_ACCEPT_GRP_MSK
;
1578 *filter_flags
&= ~RXON_FILTER_ACCEPT_GRP_MSK
;
1580 if (changed_flags
& FIF_CONTROL
) {
1581 if (*total_flags
& FIF_CONTROL
)
1582 *filter_flags
|= RXON_FILTER_CTL2HOST_MSK
;
1584 *filter_flags
&= ~RXON_FILTER_CTL2HOST_MSK
;
1586 if (changed_flags
& FIF_BCN_PRBRESP_PROMISC
) {
1587 if (*total_flags
& FIF_BCN_PRBRESP_PROMISC
)
1588 *filter_flags
|= RXON_FILTER_BCON_AWARE_MSK
;
1590 *filter_flags
&= ~RXON_FILTER_BCON_AWARE_MSK
;
1593 /* We avoid iwl_commit_rxon here to commit the new filter flags
1594 * since mac80211 will call ieee80211_hw_config immediately.
1595 * (mc_list is not supported at this time). Otherwise, we need to
1596 * queue a background iwl_commit_rxon work.
1599 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
1600 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
1602 EXPORT_SYMBOL(iwl_configure_filter
);
1604 int iwl_set_hw_params(struct iwl_priv
*priv
)
1606 priv
->hw_params
.max_rxq_size
= RX_QUEUE_SIZE
;
1607 priv
->hw_params
.max_rxq_log
= RX_QUEUE_SIZE_LOG
;
1608 if (priv
->cfg
->mod_params
->amsdu_size_8K
)
1609 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_8K
);
1611 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_4K
);
1613 priv
->hw_params
.max_beacon_itrvl
= IWL_MAX_UCODE_BEACON_INTERVAL
;
1615 if (priv
->cfg
->mod_params
->disable_11n
)
1616 priv
->cfg
->sku
&= ~IWL_SKU_N
;
1618 /* Device-specific setup */
1619 return priv
->cfg
->ops
->lib
->set_hw_params(priv
);
1621 EXPORT_SYMBOL(iwl_set_hw_params
);
1623 int iwl_set_tx_power(struct iwl_priv
*priv
, s8 tx_power
, bool force
)
1626 s8 prev_tx_power
= priv
->tx_power_user_lmt
;
1628 if (tx_power
< IWL_TX_POWER_TARGET_POWER_MIN
) {
1629 IWL_WARN(priv
, "Requested user TXPOWER %d below lower limit %d.\n",
1631 IWL_TX_POWER_TARGET_POWER_MIN
);
1635 if (tx_power
> priv
->tx_power_device_lmt
) {
1637 "Requested user TXPOWER %d above upper limit %d.\n",
1638 tx_power
, priv
->tx_power_device_lmt
);
1642 if (priv
->tx_power_user_lmt
!= tx_power
)
1645 /* if nic is not up don't send command */
1646 if (iwl_is_ready_rf(priv
)) {
1647 priv
->tx_power_user_lmt
= tx_power
;
1648 if (force
&& priv
->cfg
->ops
->lib
->send_tx_power
)
1649 ret
= priv
->cfg
->ops
->lib
->send_tx_power(priv
);
1650 else if (!priv
->cfg
->ops
->lib
->send_tx_power
)
1653 * if fail to set tx_power, restore the orig. tx power
1656 priv
->tx_power_user_lmt
= prev_tx_power
;
1660 * Even this is an async host command, the command
1661 * will always report success from uCode
1662 * So once driver can placing the command into the queue
1663 * successfully, driver can use priv->tx_power_user_lmt
1664 * to reflect the current tx power
1668 EXPORT_SYMBOL(iwl_set_tx_power
);
1670 #define ICT_COUNT (PAGE_SIZE/sizeof(u32))
1672 /* Free dram table */
1673 void iwl_free_isr_ict(struct iwl_priv
*priv
)
1675 if (priv
->ict_tbl_vir
) {
1676 dma_free_coherent(&priv
->pci_dev
->dev
,
1677 (sizeof(u32
) * ICT_COUNT
) + PAGE_SIZE
,
1678 priv
->ict_tbl_vir
, priv
->ict_tbl_dma
);
1679 priv
->ict_tbl_vir
= NULL
;
1682 EXPORT_SYMBOL(iwl_free_isr_ict
);
1685 /* allocate dram shared table it is a PAGE_SIZE aligned
1686 * also reset all data related to ICT table interrupt.
1688 int iwl_alloc_isr_ict(struct iwl_priv
*priv
)
1691 if (priv
->cfg
->use_isr_legacy
)
1693 /* allocate shrared data table */
1694 priv
->ict_tbl_vir
= dma_alloc_coherent(&priv
->pci_dev
->dev
,
1695 (sizeof(u32
) * ICT_COUNT
) + PAGE_SIZE
,
1696 &priv
->ict_tbl_dma
, GFP_KERNEL
);
1697 if (!priv
->ict_tbl_vir
)
1700 /* align table to PAGE_SIZE boundry */
1701 priv
->aligned_ict_tbl_dma
= ALIGN(priv
->ict_tbl_dma
, PAGE_SIZE
);
1703 IWL_DEBUG_ISR(priv
, "ict dma addr %Lx dma aligned %Lx diff %d\n",
1704 (unsigned long long)priv
->ict_tbl_dma
,
1705 (unsigned long long)priv
->aligned_ict_tbl_dma
,
1706 (int)(priv
->aligned_ict_tbl_dma
- priv
->ict_tbl_dma
));
1708 priv
->ict_tbl
= priv
->ict_tbl_vir
+
1709 (priv
->aligned_ict_tbl_dma
- priv
->ict_tbl_dma
);
1711 IWL_DEBUG_ISR(priv
, "ict vir addr %p vir aligned %p diff %d\n",
1712 priv
->ict_tbl
, priv
->ict_tbl_vir
,
1713 (int)(priv
->aligned_ict_tbl_dma
- priv
->ict_tbl_dma
));
1715 /* reset table and index to all 0 */
1716 memset(priv
->ict_tbl_vir
,0, (sizeof(u32
) * ICT_COUNT
) + PAGE_SIZE
);
1717 priv
->ict_index
= 0;
1719 /* add periodic RX interrupt */
1720 priv
->inta_mask
|= CSR_INT_BIT_RX_PERIODIC
;
1723 EXPORT_SYMBOL(iwl_alloc_isr_ict
);
1725 /* Device is going up inform it about using ICT interrupt table,
1726 * also we need to tell the driver to start using ICT interrupt.
1728 int iwl_reset_ict(struct iwl_priv
*priv
)
1731 unsigned long flags
;
1733 if (!priv
->ict_tbl_vir
)
1736 spin_lock_irqsave(&priv
->lock
, flags
);
1737 iwl_disable_interrupts(priv
);
1739 memset(&priv
->ict_tbl
[0], 0, sizeof(u32
) * ICT_COUNT
);
1741 val
= priv
->aligned_ict_tbl_dma
>> PAGE_SHIFT
;
1743 val
|= CSR_DRAM_INT_TBL_ENABLE
;
1744 val
|= CSR_DRAM_INIT_TBL_WRAP_CHECK
;
1746 IWL_DEBUG_ISR(priv
, "CSR_DRAM_INT_TBL_REG =0x%X "
1747 "aligned dma address %Lx\n",
1748 val
, (unsigned long long)priv
->aligned_ict_tbl_dma
);
1750 iwl_write32(priv
, CSR_DRAM_INT_TBL_REG
, val
);
1751 priv
->use_ict
= true;
1752 priv
->ict_index
= 0;
1753 iwl_write32(priv
, CSR_INT
, priv
->inta_mask
);
1754 iwl_enable_interrupts(priv
);
1755 spin_unlock_irqrestore(&priv
->lock
, flags
);
1759 EXPORT_SYMBOL(iwl_reset_ict
);
1761 /* Device is going down disable ict interrupt usage */
1762 void iwl_disable_ict(struct iwl_priv
*priv
)
1764 unsigned long flags
;
1766 spin_lock_irqsave(&priv
->lock
, flags
);
1767 priv
->use_ict
= false;
1768 spin_unlock_irqrestore(&priv
->lock
, flags
);
1770 EXPORT_SYMBOL(iwl_disable_ict
);
1772 /* interrupt handler using ict table, with this interrupt driver will
1773 * stop using INTA register to get device's interrupt, reading this register
1774 * is expensive, device will write interrupts in ICT dram table, increment
1775 * index then will fire interrupt to driver, driver will OR all ICT table
1776 * entries from current index up to table entry with 0 value. the result is
1777 * the interrupt we need to service, driver will set the entries back to 0 and
1780 irqreturn_t
iwl_isr_ict(int irq
, void *data
)
1782 struct iwl_priv
*priv
= data
;
1783 u32 inta
, inta_mask
;
1789 /* dram interrupt table not set yet,
1790 * use legacy interrupt.
1793 return iwl_isr(irq
, data
);
1795 spin_lock(&priv
->lock
);
1797 /* Disable (but don't clear!) interrupts here to avoid
1798 * back-to-back ISRs and sporadic interrupts from our NIC.
1799 * If we have something to service, the tasklet will re-enable ints.
1800 * If we *don't* have something, we'll re-enable before leaving here.
1802 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
1803 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
1806 /* Ignore interrupt if there's nothing in NIC to service.
1807 * This may be due to IRQ shared with another device,
1808 * or due to sporadic interrupts thrown from our NIC. */
1809 if (!priv
->ict_tbl
[priv
->ict_index
]) {
1810 IWL_DEBUG_ISR(priv
, "Ignore interrupt, inta == 0\n");
1814 /* read all entries that not 0 start with ict_index */
1815 while (priv
->ict_tbl
[priv
->ict_index
]) {
1817 val
|= le32_to_cpu(priv
->ict_tbl
[priv
->ict_index
]);
1818 IWL_DEBUG_ISR(priv
, "ICT index %d value 0x%08X\n",
1820 le32_to_cpu(priv
->ict_tbl
[priv
->ict_index
]));
1821 priv
->ict_tbl
[priv
->ict_index
] = 0;
1822 priv
->ict_index
= iwl_queue_inc_wrap(priv
->ict_index
,
1827 /* We should not get this value, just ignore it. */
1828 if (val
== 0xffffffff)
1832 * this is a w/a for a h/w bug. the h/w bug may cause the Rx bit
1833 * (bit 15 before shifting it to 31) to clear when using interrupt
1834 * coalescing. fortunately, bits 18 and 19 stay set when this happens
1835 * so we use them to decide on the real state of the Rx bit.
1836 * In order words, bit 15 is set if bit 18 or bit 19 are set.
1841 inta
= (0xff & val
) | ((0xff00 & val
) << 16);
1842 IWL_DEBUG_ISR(priv
, "ISR inta 0x%08x, enabled 0x%08x ict 0x%08x\n",
1843 inta
, inta_mask
, val
);
1845 inta
&= priv
->inta_mask
;
1848 /* iwl_irq_tasklet() will service interrupts and re-enable them */
1850 tasklet_schedule(&priv
->irq_tasklet
);
1851 else if (test_bit(STATUS_INT_ENABLED
, &priv
->status
) && !priv
->inta
) {
1852 /* Allow interrupt if was disabled by this handler and
1853 * no tasklet was schedules, We should not enable interrupt,
1854 * tasklet will enable it.
1856 iwl_enable_interrupts(priv
);
1859 spin_unlock(&priv
->lock
);
1863 /* re-enable interrupts here since we don't have anything to service.
1864 * only Re-enable if disabled by irq.
1866 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
) && !priv
->inta
)
1867 iwl_enable_interrupts(priv
);
1869 spin_unlock(&priv
->lock
);
1872 EXPORT_SYMBOL(iwl_isr_ict
);
1875 static irqreturn_t
iwl_isr(int irq
, void *data
)
1877 struct iwl_priv
*priv
= data
;
1878 u32 inta
, inta_mask
;
1879 #ifdef CONFIG_IWLWIFI_DEBUG
1885 spin_lock(&priv
->lock
);
1887 /* Disable (but don't clear!) interrupts here to avoid
1888 * back-to-back ISRs and sporadic interrupts from our NIC.
1889 * If we have something to service, the tasklet will re-enable ints.
1890 * If we *don't* have something, we'll re-enable before leaving here. */
1891 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
1892 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
1894 /* Discover which interrupts are active/pending */
1895 inta
= iwl_read32(priv
, CSR_INT
);
1897 /* Ignore interrupt if there's nothing in NIC to service.
1898 * This may be due to IRQ shared with another device,
1899 * or due to sporadic interrupts thrown from our NIC. */
1901 IWL_DEBUG_ISR(priv
, "Ignore interrupt, inta == 0\n");
1905 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
1906 /* Hardware disappeared. It might have already raised
1908 IWL_WARN(priv
, "HARDWARE GONE?? INTA == 0x%08x\n", inta
);
1912 #ifdef CONFIG_IWLWIFI_DEBUG
1913 if (iwl_get_debug_level(priv
) & (IWL_DL_ISR
)) {
1914 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1915 IWL_DEBUG_ISR(priv
, "ISR inta 0x%08x, enabled 0x%08x, "
1916 "fh 0x%08x\n", inta
, inta_mask
, inta_fh
);
1921 /* iwl_irq_tasklet() will service interrupts and re-enable them */
1923 tasklet_schedule(&priv
->irq_tasklet
);
1924 else if (test_bit(STATUS_INT_ENABLED
, &priv
->status
) && !priv
->inta
)
1925 iwl_enable_interrupts(priv
);
1928 spin_unlock(&priv
->lock
);
1932 /* re-enable interrupts here since we don't have anything to service. */
1933 /* only Re-enable if diabled by irq and no schedules tasklet. */
1934 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
) && !priv
->inta
)
1935 iwl_enable_interrupts(priv
);
1937 spin_unlock(&priv
->lock
);
1941 irqreturn_t
iwl_isr_legacy(int irq
, void *data
)
1943 struct iwl_priv
*priv
= data
;
1944 u32 inta
, inta_mask
;
1949 spin_lock(&priv
->lock
);
1951 /* Disable (but don't clear!) interrupts here to avoid
1952 * back-to-back ISRs and sporadic interrupts from our NIC.
1953 * If we have something to service, the tasklet will re-enable ints.
1954 * If we *don't* have something, we'll re-enable before leaving here. */
1955 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
1956 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
1958 /* Discover which interrupts are active/pending */
1959 inta
= iwl_read32(priv
, CSR_INT
);
1960 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1962 /* Ignore interrupt if there's nothing in NIC to service.
1963 * This may be due to IRQ shared with another device,
1964 * or due to sporadic interrupts thrown from our NIC. */
1965 if (!inta
&& !inta_fh
) {
1966 IWL_DEBUG_ISR(priv
, "Ignore interrupt, inta == 0, inta_fh == 0\n");
1970 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
1971 /* Hardware disappeared. It might have already raised
1973 IWL_WARN(priv
, "HARDWARE GONE?? INTA == 0x%08x\n", inta
);
1977 IWL_DEBUG_ISR(priv
, "ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1978 inta
, inta_mask
, inta_fh
);
1980 inta
&= ~CSR_INT_BIT_SCD
;
1982 /* iwl_irq_tasklet() will service interrupts and re-enable them */
1983 if (likely(inta
|| inta_fh
))
1984 tasklet_schedule(&priv
->irq_tasklet
);
1987 spin_unlock(&priv
->lock
);
1991 /* re-enable interrupts here since we don't have anything to service. */
1992 /* only Re-enable if diabled by irq */
1993 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
1994 iwl_enable_interrupts(priv
);
1995 spin_unlock(&priv
->lock
);
1998 EXPORT_SYMBOL(iwl_isr_legacy
);
2000 int iwl_send_bt_config(struct iwl_priv
*priv
)
2002 struct iwl_bt_cmd bt_cmd
= {
2003 .lead_time
= BT_LEAD_TIME_DEF
,
2004 .max_kill
= BT_MAX_KILL_DEF
,
2009 if (!bt_coex_active
)
2010 bt_cmd
.flags
= BT_COEX_DISABLE
;
2012 bt_cmd
.flags
= BT_COEX_ENABLE
;
2014 IWL_DEBUG_INFO(priv
, "BT coex %s\n",
2015 (bt_cmd
.flags
== BT_COEX_DISABLE
) ? "disable" : "active");
2017 return iwl_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
2018 sizeof(struct iwl_bt_cmd
), &bt_cmd
);
2020 EXPORT_SYMBOL(iwl_send_bt_config
);
2022 int iwl_send_statistics_request(struct iwl_priv
*priv
, u8 flags
, bool clear
)
2024 struct iwl_statistics_cmd statistics_cmd
= {
2025 .configuration_flags
=
2026 clear
? IWL_STATS_CONF_CLEAR_STATS
: 0,
2029 if (flags
& CMD_ASYNC
)
2030 return iwl_send_cmd_pdu_async(priv
, REPLY_STATISTICS_CMD
,
2031 sizeof(struct iwl_statistics_cmd
),
2032 &statistics_cmd
, NULL
);
2034 return iwl_send_cmd_pdu(priv
, REPLY_STATISTICS_CMD
,
2035 sizeof(struct iwl_statistics_cmd
),
2038 EXPORT_SYMBOL(iwl_send_statistics_request
);
2041 * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
2042 * using sample data 100 bytes apart. If these sample points are good,
2043 * it's a pretty good bet that everything between them is good, too.
2045 static int iwlcore_verify_inst_sparse(struct iwl_priv
*priv
, __le32
*image
, u32 len
)
2052 IWL_DEBUG_INFO(priv
, "ucode inst image size is %u\n", len
);
2054 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
2055 /* read data comes through single port, auto-incr addr */
2056 /* NOTE: Use the debugless read so we don't flood kernel log
2057 * if IWL_DL_IO is set */
2058 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
2059 i
+ IWL49_RTC_INST_LOWER_BOUND
);
2060 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
2061 if (val
!= le32_to_cpu(*image
)) {
2073 * iwlcore_verify_inst_full - verify runtime uCode image in card vs. host,
2074 * looking at all data.
2076 static int iwl_verify_inst_full(struct iwl_priv
*priv
, __le32
*image
,
2084 IWL_DEBUG_INFO(priv
, "ucode inst image size is %u\n", len
);
2086 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
2087 IWL49_RTC_INST_LOWER_BOUND
);
2090 for (; len
> 0; len
-= sizeof(u32
), image
++) {
2091 /* read data comes through single port, auto-incr addr */
2092 /* NOTE: Use the debugless read so we don't flood kernel log
2093 * if IWL_DL_IO is set */
2094 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
2095 if (val
!= le32_to_cpu(*image
)) {
2096 IWL_ERR(priv
, "uCode INST section is invalid at "
2097 "offset 0x%x, is 0x%x, s/b 0x%x\n",
2098 save_len
- len
, val
, le32_to_cpu(*image
));
2107 IWL_DEBUG_INFO(priv
,
2108 "ucode image in INSTRUCTION memory is good\n");
2114 * iwl_verify_ucode - determine which instruction image is in SRAM,
2115 * and verify its contents
2117 int iwl_verify_ucode(struct iwl_priv
*priv
)
2124 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
2125 len
= priv
->ucode_boot
.len
;
2126 ret
= iwlcore_verify_inst_sparse(priv
, image
, len
);
2128 IWL_DEBUG_INFO(priv
, "Bootstrap uCode is good in inst SRAM\n");
2132 /* Try initialize */
2133 image
= (__le32
*)priv
->ucode_init
.v_addr
;
2134 len
= priv
->ucode_init
.len
;
2135 ret
= iwlcore_verify_inst_sparse(priv
, image
, len
);
2137 IWL_DEBUG_INFO(priv
, "Initialize uCode is good in inst SRAM\n");
2141 /* Try runtime/protocol */
2142 image
= (__le32
*)priv
->ucode_code
.v_addr
;
2143 len
= priv
->ucode_code
.len
;
2144 ret
= iwlcore_verify_inst_sparse(priv
, image
, len
);
2146 IWL_DEBUG_INFO(priv
, "Runtime uCode is good in inst SRAM\n");
2150 IWL_ERR(priv
, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
2152 /* Since nothing seems to match, show first several data entries in
2153 * instruction SRAM, so maybe visual inspection will give a clue.
2154 * Selection of bootstrap image (vs. other images) is arbitrary. */
2155 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
2156 len
= priv
->ucode_boot
.len
;
2157 ret
= iwl_verify_inst_full(priv
, image
, len
);
2161 EXPORT_SYMBOL(iwl_verify_ucode
);
2164 void iwl_rf_kill_ct_config(struct iwl_priv
*priv
)
2166 struct iwl_ct_kill_config cmd
;
2167 struct iwl_ct_kill_throttling_config adv_cmd
;
2168 unsigned long flags
;
2171 spin_lock_irqsave(&priv
->lock
, flags
);
2172 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
2173 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
2174 spin_unlock_irqrestore(&priv
->lock
, flags
);
2175 priv
->thermal_throttle
.ct_kill_toggle
= false;
2177 if (priv
->cfg
->support_ct_kill_exit
) {
2178 adv_cmd
.critical_temperature_enter
=
2179 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
2180 adv_cmd
.critical_temperature_exit
=
2181 cpu_to_le32(priv
->hw_params
.ct_kill_exit_threshold
);
2183 ret
= iwl_send_cmd_pdu(priv
, REPLY_CT_KILL_CONFIG_CMD
,
2184 sizeof(adv_cmd
), &adv_cmd
);
2186 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
2188 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
2190 "critical temperature enter is %d,"
2192 priv
->hw_params
.ct_kill_threshold
,
2193 priv
->hw_params
.ct_kill_exit_threshold
);
2195 cmd
.critical_temperature_R
=
2196 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
2198 ret
= iwl_send_cmd_pdu(priv
, REPLY_CT_KILL_CONFIG_CMD
,
2201 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
2203 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
2205 "critical temperature is %d\n",
2206 priv
->hw_params
.ct_kill_threshold
);
2209 EXPORT_SYMBOL(iwl_rf_kill_ct_config
);
2215 * Use: Sets the device's internal card state to enable, disable, or halt
2217 * When in the 'enable' state the card operates as normal.
2218 * When in the 'disable' state, the card enters into a low power mode.
2219 * When in the 'halt' state, the card is shut down and must be fully
2220 * restarted to come back on.
2222 int iwl_send_card_state(struct iwl_priv
*priv
, u32 flags
, u8 meta_flag
)
2224 struct iwl_host_cmd cmd
= {
2225 .id
= REPLY_CARD_STATE_CMD
,
2231 return iwl_send_cmd(priv
, &cmd
);
2234 void iwl_rx_pm_sleep_notif(struct iwl_priv
*priv
,
2235 struct iwl_rx_mem_buffer
*rxb
)
2237 #ifdef CONFIG_IWLWIFI_DEBUG
2238 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
2239 struct iwl_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
2240 IWL_DEBUG_RX(priv
, "sleep mode: %d, src: %d\n",
2241 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
2244 EXPORT_SYMBOL(iwl_rx_pm_sleep_notif
);
2246 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
2247 struct iwl_rx_mem_buffer
*rxb
)
2249 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
2250 u32 len
= le32_to_cpu(pkt
->len_n_flags
) & FH_RSCSR_FRAME_SIZE_MSK
;
2251 IWL_DEBUG_RADIO(priv
, "Dumping %d bytes of unhandled "
2252 "notification for %s:\n", len
,
2253 get_cmd_string(pkt
->hdr
.cmd
));
2254 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, pkt
->u
.raw
, len
);
2256 EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif
);
2258 void iwl_rx_reply_error(struct iwl_priv
*priv
,
2259 struct iwl_rx_mem_buffer
*rxb
)
2261 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
2263 IWL_ERR(priv
, "Error Reply type 0x%08X cmd %s (0x%02X) "
2264 "seq 0x%04X ser 0x%08X\n",
2265 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
2266 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
2267 pkt
->u
.err_resp
.cmd_id
,
2268 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
2269 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
2271 EXPORT_SYMBOL(iwl_rx_reply_error
);
2273 void iwl_clear_isr_stats(struct iwl_priv
*priv
)
2275 memset(&priv
->isr_stats
, 0, sizeof(priv
->isr_stats
));
2278 int iwl_mac_conf_tx(struct ieee80211_hw
*hw
, u16 queue
,
2279 const struct ieee80211_tx_queue_params
*params
)
2281 struct iwl_priv
*priv
= hw
->priv
;
2282 unsigned long flags
;
2285 IWL_DEBUG_MAC80211(priv
, "enter\n");
2287 if (!iwl_is_ready_rf(priv
)) {
2288 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
2292 if (queue
>= AC_NUM
) {
2293 IWL_DEBUG_MAC80211(priv
, "leave - queue >= AC_NUM %d\n", queue
);
2297 q
= AC_NUM
- 1 - queue
;
2299 spin_lock_irqsave(&priv
->lock
, flags
);
2301 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
2302 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
2303 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
2304 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
2305 cpu_to_le16((params
->txop
* 32));
2307 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
2308 priv
->qos_data
.qos_active
= 1;
2310 if (priv
->iw_mode
== NL80211_IFTYPE_AP
)
2311 iwl_activate_qos(priv
, 1);
2312 else if (priv
->assoc_id
&& iwl_is_associated(priv
))
2313 iwl_activate_qos(priv
, 0);
2315 spin_unlock_irqrestore(&priv
->lock
, flags
);
2317 IWL_DEBUG_MAC80211(priv
, "leave\n");
2320 EXPORT_SYMBOL(iwl_mac_conf_tx
);
2322 static void iwl_ht_conf(struct iwl_priv
*priv
,
2323 struct ieee80211_bss_conf
*bss_conf
)
2325 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
2326 struct ieee80211_sta
*sta
;
2328 IWL_DEBUG_MAC80211(priv
, "enter: \n");
2330 if (!ht_conf
->is_ht
)
2333 ht_conf
->ht_protection
=
2334 bss_conf
->ht_operation_mode
& IEEE80211_HT_OP_MODE_PROTECTION
;
2335 ht_conf
->non_GF_STA_present
=
2336 !!(bss_conf
->ht_operation_mode
& IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT
);
2338 ht_conf
->single_chain_sufficient
= false;
2340 switch (priv
->iw_mode
) {
2341 case NL80211_IFTYPE_STATION
:
2343 sta
= ieee80211_find_sta(priv
->vif
, priv
->bssid
);
2345 struct ieee80211_sta_ht_cap
*ht_cap
= &sta
->ht_cap
;
2348 maxstreams
= (ht_cap
->mcs
.tx_params
&
2349 IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK
)
2350 >> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
;
2353 if ((ht_cap
->mcs
.rx_mask
[1] == 0) &&
2354 (ht_cap
->mcs
.rx_mask
[2] == 0))
2355 ht_conf
->single_chain_sufficient
= true;
2356 if (maxstreams
<= 1)
2357 ht_conf
->single_chain_sufficient
= true;
2360 * If at all, this can only happen through a race
2361 * when the AP disconnects us while we're still
2362 * setting up the connection, in that case mac80211
2363 * will soon tell us about that.
2365 ht_conf
->single_chain_sufficient
= true;
2369 case NL80211_IFTYPE_ADHOC
:
2370 ht_conf
->single_chain_sufficient
= true;
2376 IWL_DEBUG_MAC80211(priv
, "leave\n");
2379 static inline void iwl_set_no_assoc(struct iwl_priv
*priv
)
2382 iwl_led_disassociate(priv
);
2384 * inform the ucode that there is no longer an
2385 * association and that no more packets should be
2388 priv
->staging_rxon
.filter_flags
&=
2389 ~RXON_FILTER_ASSOC_MSK
;
2390 priv
->staging_rxon
.assoc_id
= 0;
2391 iwlcore_commit_rxon(priv
);
2394 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
2395 void iwl_bss_info_changed(struct ieee80211_hw
*hw
,
2396 struct ieee80211_vif
*vif
,
2397 struct ieee80211_bss_conf
*bss_conf
,
2400 struct iwl_priv
*priv
= hw
->priv
;
2403 IWL_DEBUG_MAC80211(priv
, "changes = 0x%X\n", changes
);
2405 if (!iwl_is_alive(priv
))
2408 mutex_lock(&priv
->mutex
);
2410 if (changes
& BSS_CHANGED_BEACON
&&
2411 priv
->iw_mode
== NL80211_IFTYPE_AP
) {
2412 dev_kfree_skb(priv
->ibss_beacon
);
2413 priv
->ibss_beacon
= ieee80211_beacon_get(hw
, vif
);
2416 if (changes
& BSS_CHANGED_BEACON_INT
) {
2417 priv
->beacon_int
= bss_conf
->beacon_int
;
2418 /* TODO: in AP mode, do something to make this take effect */
2421 if (changes
& BSS_CHANGED_BSSID
) {
2422 IWL_DEBUG_MAC80211(priv
, "BSSID %pM\n", bss_conf
->bssid
);
2425 * If there is currently a HW scan going on in the
2426 * background then we need to cancel it else the RXON
2427 * below/in post_associate will fail.
2429 if (iwl_scan_cancel_timeout(priv
, 100)) {
2430 IWL_WARN(priv
, "Aborted scan still in progress after 100ms\n");
2431 IWL_DEBUG_MAC80211(priv
, "leaving - scan abort failed.\n");
2432 mutex_unlock(&priv
->mutex
);
2436 /* mac80211 only sets assoc when in STATION mode */
2437 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
||
2439 memcpy(priv
->staging_rxon
.bssid_addr
,
2440 bss_conf
->bssid
, ETH_ALEN
);
2442 /* currently needed in a few places */
2443 memcpy(priv
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
2445 priv
->staging_rxon
.filter_flags
&=
2446 ~RXON_FILTER_ASSOC_MSK
;
2452 * This needs to be after setting the BSSID in case
2453 * mac80211 decides to do both changes at once because
2454 * it will invoke post_associate.
2456 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
&&
2457 changes
& BSS_CHANGED_BEACON
) {
2458 struct sk_buff
*beacon
= ieee80211_beacon_get(hw
, vif
);
2461 iwl_mac_beacon_update(hw
, beacon
);
2464 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
2465 IWL_DEBUG_MAC80211(priv
, "ERP_PREAMBLE %d\n",
2466 bss_conf
->use_short_preamble
);
2467 if (bss_conf
->use_short_preamble
)
2468 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2470 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2473 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
2474 IWL_DEBUG_MAC80211(priv
, "ERP_CTS %d\n", bss_conf
->use_cts_prot
);
2475 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
2476 priv
->staging_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
2478 priv
->staging_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
2481 if (changes
& BSS_CHANGED_BASIC_RATES
) {
2482 /* XXX use this information
2484 * To do that, remove code from iwl_set_rate() and put something
2488 priv->staging_rxon.ofdm_basic_rates =
2489 bss_conf->basic_rates;
2491 priv->staging_rxon.ofdm_basic_rates =
2492 bss_conf->basic_rates >> 4;
2493 priv->staging_rxon.cck_basic_rates =
2494 bss_conf->basic_rates & 0xF;
2498 if (changes
& BSS_CHANGED_HT
) {
2499 iwl_ht_conf(priv
, bss_conf
);
2501 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2502 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2505 if (changes
& BSS_CHANGED_ASSOC
) {
2506 IWL_DEBUG_MAC80211(priv
, "ASSOC %d\n", bss_conf
->assoc
);
2507 if (bss_conf
->assoc
) {
2508 priv
->assoc_id
= bss_conf
->aid
;
2509 priv
->beacon_int
= bss_conf
->beacon_int
;
2510 priv
->timestamp
= bss_conf
->timestamp
;
2511 priv
->assoc_capability
= bss_conf
->assoc_capability
;
2513 iwl_led_associate(priv
);
2516 * We have just associated, don't start scan too early
2517 * leave time for EAPOL exchange to complete.
2519 * XXX: do this in mac80211
2521 priv
->next_scan_jiffies
= jiffies
+
2522 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC
;
2523 if (!iwl_is_rfkill(priv
))
2524 priv
->cfg
->ops
->lib
->post_associate(priv
);
2526 iwl_set_no_assoc(priv
);
2529 if (changes
&& iwl_is_associated(priv
) && priv
->assoc_id
) {
2530 IWL_DEBUG_MAC80211(priv
, "Changes (%#x) while associated\n",
2532 ret
= iwl_send_rxon_assoc(priv
);
2534 /* Sync active_rxon with latest change. */
2535 memcpy((void *)&priv
->active_rxon
,
2536 &priv
->staging_rxon
,
2537 sizeof(struct iwl_rxon_cmd
));
2541 if (changes
& BSS_CHANGED_BEACON_ENABLED
) {
2542 if (vif
->bss_conf
.enable_beacon
) {
2543 memcpy(priv
->staging_rxon
.bssid_addr
,
2544 bss_conf
->bssid
, ETH_ALEN
);
2545 memcpy(priv
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
2546 iwlcore_config_ap(priv
);
2548 iwl_set_no_assoc(priv
);
2551 mutex_unlock(&priv
->mutex
);
2553 IWL_DEBUG_MAC80211(priv
, "leave\n");
2555 EXPORT_SYMBOL(iwl_bss_info_changed
);
2557 int iwl_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
2559 struct iwl_priv
*priv
= hw
->priv
;
2560 unsigned long flags
;
2563 IWL_DEBUG_MAC80211(priv
, "enter\n");
2565 if (!iwl_is_ready_rf(priv
)) {
2566 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
2570 if (priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) {
2571 IWL_DEBUG_MAC80211(priv
, "leave - not IBSS\n");
2575 spin_lock_irqsave(&priv
->lock
, flags
);
2577 if (priv
->ibss_beacon
)
2578 dev_kfree_skb(priv
->ibss_beacon
);
2580 priv
->ibss_beacon
= skb
;
2583 timestamp
= ((struct ieee80211_mgmt
*)skb
->data
)->u
.beacon
.timestamp
;
2584 priv
->timestamp
= le64_to_cpu(timestamp
);
2586 IWL_DEBUG_MAC80211(priv
, "leave\n");
2587 spin_unlock_irqrestore(&priv
->lock
, flags
);
2589 iwl_reset_qos(priv
);
2591 priv
->cfg
->ops
->lib
->post_associate(priv
);
2596 EXPORT_SYMBOL(iwl_mac_beacon_update
);
2598 int iwl_set_mode(struct iwl_priv
*priv
, int mode
)
2600 if (mode
== NL80211_IFTYPE_ADHOC
) {
2601 const struct iwl_channel_info
*ch_info
;
2603 ch_info
= iwl_get_channel_info(priv
,
2605 le16_to_cpu(priv
->staging_rxon
.channel
));
2607 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
2608 IWL_ERR(priv
, "channel %d not IBSS channel\n",
2609 le16_to_cpu(priv
->staging_rxon
.channel
));
2614 iwl_connection_init_rx_config(priv
, mode
);
2616 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2617 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2619 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2621 iwl_clear_stations_table(priv
);
2623 /* dont commit rxon if rf-kill is on*/
2624 if (!iwl_is_ready_rf(priv
))
2627 iwlcore_commit_rxon(priv
);
2631 EXPORT_SYMBOL(iwl_set_mode
);
2633 int iwl_mac_add_interface(struct ieee80211_hw
*hw
,
2634 struct ieee80211_vif
*vif
)
2636 struct iwl_priv
*priv
= hw
->priv
;
2639 IWL_DEBUG_MAC80211(priv
, "enter: type %d\n", vif
->type
);
2641 mutex_lock(&priv
->mutex
);
2644 IWL_DEBUG_MAC80211(priv
, "leave - vif != NULL\n");
2650 priv
->iw_mode
= vif
->type
;
2653 IWL_DEBUG_MAC80211(priv
, "Set %pM\n", vif
->addr
);
2654 memcpy(priv
->mac_addr
, vif
->addr
, ETH_ALEN
);
2657 if (iwl_set_mode(priv
, vif
->type
) == -EAGAIN
)
2658 /* we are not ready, will run again when ready */
2659 set_bit(STATUS_MODE_PENDING
, &priv
->status
);
2662 mutex_unlock(&priv
->mutex
);
2664 IWL_DEBUG_MAC80211(priv
, "leave\n");
2667 EXPORT_SYMBOL(iwl_mac_add_interface
);
2669 void iwl_mac_remove_interface(struct ieee80211_hw
*hw
,
2670 struct ieee80211_vif
*vif
)
2672 struct iwl_priv
*priv
= hw
->priv
;
2674 IWL_DEBUG_MAC80211(priv
, "enter\n");
2676 mutex_lock(&priv
->mutex
);
2678 if (iwl_is_ready_rf(priv
)) {
2679 iwl_scan_cancel_timeout(priv
, 100);
2680 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2681 iwlcore_commit_rxon(priv
);
2683 if (priv
->vif
== vif
) {
2685 memset(priv
->bssid
, 0, ETH_ALEN
);
2687 mutex_unlock(&priv
->mutex
);
2689 IWL_DEBUG_MAC80211(priv
, "leave\n");
2692 EXPORT_SYMBOL(iwl_mac_remove_interface
);
2695 * iwl_mac_config - mac80211 config callback
2697 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
2698 * be set inappropriately and the driver currently sets the hardware up to
2699 * use it whenever needed.
2701 int iwl_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
2703 struct iwl_priv
*priv
= hw
->priv
;
2704 const struct iwl_channel_info
*ch_info
;
2705 struct ieee80211_conf
*conf
= &hw
->conf
;
2706 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
2707 unsigned long flags
= 0;
2710 int scan_active
= 0;
2712 mutex_lock(&priv
->mutex
);
2714 IWL_DEBUG_MAC80211(priv
, "enter to channel %d changed 0x%X\n",
2715 conf
->channel
->hw_value
, changed
);
2717 if (unlikely(!priv
->cfg
->mod_params
->disable_hw_scan
&&
2718 test_bit(STATUS_SCANNING
, &priv
->status
))) {
2720 IWL_DEBUG_MAC80211(priv
, "leave - scanning\n");
2723 if (changed
& (IEEE80211_CONF_CHANGE_SMPS
|
2724 IEEE80211_CONF_CHANGE_CHANNEL
)) {
2725 /* mac80211 uses static for non-HT which is what we want */
2726 priv
->current_ht_config
.smps
= conf
->smps_mode
;
2729 * Recalculate chain counts.
2731 * If monitor mode is enabled then mac80211 will
2732 * set up the SM PS mode to OFF if an HT channel is
2735 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2736 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2739 /* during scanning mac80211 will delay channel setting until
2740 * scan finish with changed = 0
2742 if (!changed
|| (changed
& IEEE80211_CONF_CHANGE_CHANNEL
)) {
2746 ch
= ieee80211_frequency_to_channel(conf
->channel
->center_freq
);
2747 ch_info
= iwl_get_channel_info(priv
, conf
->channel
->band
, ch
);
2748 if (!is_channel_valid(ch_info
)) {
2749 IWL_DEBUG_MAC80211(priv
, "leave - invalid channel\n");
2754 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
&&
2755 !is_channel_ibss(ch_info
)) {
2756 IWL_ERR(priv
, "channel %d in band %d not "
2758 conf
->channel
->hw_value
, conf
->channel
->band
);
2763 spin_lock_irqsave(&priv
->lock
, flags
);
2765 /* Configure HT40 channels */
2766 ht_conf
->is_ht
= conf_is_ht(conf
);
2767 if (ht_conf
->is_ht
) {
2768 if (conf_is_ht40_minus(conf
)) {
2769 ht_conf
->extension_chan_offset
=
2770 IEEE80211_HT_PARAM_CHA_SEC_BELOW
;
2771 ht_conf
->is_40mhz
= true;
2772 } else if (conf_is_ht40_plus(conf
)) {
2773 ht_conf
->extension_chan_offset
=
2774 IEEE80211_HT_PARAM_CHA_SEC_ABOVE
;
2775 ht_conf
->is_40mhz
= true;
2777 ht_conf
->extension_chan_offset
=
2778 IEEE80211_HT_PARAM_CHA_SEC_NONE
;
2779 ht_conf
->is_40mhz
= false;
2782 ht_conf
->is_40mhz
= false;
2783 /* Default to no protection. Protection mode will later be set
2784 * from BSS config in iwl_ht_conf */
2785 ht_conf
->ht_protection
= IEEE80211_HT_OP_MODE_PROTECTION_NONE
;
2787 /* if we are switching from ht to 2.4 clear flags
2788 * from any ht related info since 2.4 does not
2790 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != ch
))
2791 priv
->staging_rxon
.flags
= 0;
2793 iwl_set_rxon_channel(priv
, conf
->channel
);
2794 iwl_set_rxon_ht(priv
, ht_conf
);
2796 iwl_set_flags_for_band(priv
, conf
->channel
->band
);
2797 spin_unlock_irqrestore(&priv
->lock
, flags
);
2798 if (iwl_is_associated(priv
) &&
2799 (le16_to_cpu(priv
->active_rxon
.channel
) != ch
) &&
2800 priv
->cfg
->ops
->lib
->set_channel_switch
) {
2803 * at this point, staging_rxon has the
2804 * configuration for channel switch
2806 ret
= priv
->cfg
->ops
->lib
->set_channel_switch(priv
,
2809 iwl_print_rx_config_cmd(priv
);
2812 priv
->switch_rxon
.switch_in_progress
= false;
2815 /* The list of supported rates and rate mask can be different
2816 * for each band; since the band may have changed, reset
2817 * the rate mask to what mac80211 lists */
2821 if (changed
& (IEEE80211_CONF_CHANGE_PS
|
2822 IEEE80211_CONF_CHANGE_IDLE
)) {
2823 ret
= iwl_power_update_mode(priv
, false);
2825 IWL_DEBUG_MAC80211(priv
, "Error setting sleep level\n");
2828 if (changed
& IEEE80211_CONF_CHANGE_POWER
) {
2829 IWL_DEBUG_MAC80211(priv
, "TX Power old=%d new=%d\n",
2830 priv
->tx_power_user_lmt
, conf
->power_level
);
2832 iwl_set_tx_power(priv
, conf
->power_level
, false);
2835 if (!iwl_is_ready(priv
)) {
2836 IWL_DEBUG_MAC80211(priv
, "leave - not ready\n");
2843 if (memcmp(&priv
->active_rxon
,
2844 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
2845 iwlcore_commit_rxon(priv
);
2847 IWL_DEBUG_INFO(priv
, "Not re-sending same RXON configuration.\n");
2851 IWL_DEBUG_MAC80211(priv
, "leave\n");
2852 mutex_unlock(&priv
->mutex
);
2855 EXPORT_SYMBOL(iwl_mac_config
);
2857 void iwl_mac_reset_tsf(struct ieee80211_hw
*hw
)
2859 struct iwl_priv
*priv
= hw
->priv
;
2860 unsigned long flags
;
2862 mutex_lock(&priv
->mutex
);
2863 IWL_DEBUG_MAC80211(priv
, "enter\n");
2865 spin_lock_irqsave(&priv
->lock
, flags
);
2866 memset(&priv
->current_ht_config
, 0, sizeof(struct iwl_ht_config
));
2867 spin_unlock_irqrestore(&priv
->lock
, flags
);
2869 iwl_reset_qos(priv
);
2871 spin_lock_irqsave(&priv
->lock
, flags
);
2873 priv
->assoc_capability
= 0;
2874 priv
->assoc_station_added
= 0;
2876 /* new association get rid of ibss beacon skb */
2877 if (priv
->ibss_beacon
)
2878 dev_kfree_skb(priv
->ibss_beacon
);
2880 priv
->ibss_beacon
= NULL
;
2882 priv
->beacon_int
= priv
->vif
->bss_conf
.beacon_int
;
2883 priv
->timestamp
= 0;
2884 if ((priv
->iw_mode
== NL80211_IFTYPE_STATION
))
2885 priv
->beacon_int
= 0;
2887 spin_unlock_irqrestore(&priv
->lock
, flags
);
2889 if (!iwl_is_ready_rf(priv
)) {
2890 IWL_DEBUG_MAC80211(priv
, "leave - not ready\n");
2891 mutex_unlock(&priv
->mutex
);
2895 /* we are restarting association process
2896 * clear RXON_FILTER_ASSOC_MSK bit
2898 if (priv
->iw_mode
!= NL80211_IFTYPE_AP
) {
2899 iwl_scan_cancel_timeout(priv
, 100);
2900 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2901 iwlcore_commit_rxon(priv
);
2904 if (priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) {
2905 IWL_DEBUG_MAC80211(priv
, "leave - not in IBSS\n");
2906 mutex_unlock(&priv
->mutex
);
2912 mutex_unlock(&priv
->mutex
);
2914 IWL_DEBUG_MAC80211(priv
, "leave\n");
2916 EXPORT_SYMBOL(iwl_mac_reset_tsf
);
2918 int iwl_alloc_txq_mem(struct iwl_priv
*priv
)
2921 priv
->txq
= kzalloc(
2922 sizeof(struct iwl_tx_queue
) * priv
->cfg
->num_of_queues
,
2925 IWL_ERR(priv
, "Not enough memory for txq \n");
2930 EXPORT_SYMBOL(iwl_alloc_txq_mem
);
2932 void iwl_free_txq_mem(struct iwl_priv
*priv
)
2937 EXPORT_SYMBOL(iwl_free_txq_mem
);
2939 int iwl_send_wimax_coex(struct iwl_priv
*priv
)
2941 struct iwl_wimax_coex_cmd
uninitialized_var(coex_cmd
);
2943 if (priv
->cfg
->support_wimax_coexist
) {
2944 /* UnMask wake up src at associated sleep */
2945 coex_cmd
.flags
|= COEX_FLAGS_ASSOC_WA_UNMASK_MSK
;
2947 /* UnMask wake up src at unassociated sleep */
2948 coex_cmd
.flags
|= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK
;
2949 memcpy(coex_cmd
.sta_prio
, cu_priorities
,
2950 sizeof(struct iwl_wimax_coex_event_entry
) *
2951 COEX_NUM_OF_EVENTS
);
2953 /* enabling the coexistence feature */
2954 coex_cmd
.flags
|= COEX_FLAGS_COEX_ENABLE_MSK
;
2956 /* enabling the priorities tables */
2957 coex_cmd
.flags
|= COEX_FLAGS_STA_TABLE_VALID_MSK
;
2959 /* coexistence is disabled */
2960 memset(&coex_cmd
, 0, sizeof(coex_cmd
));
2962 return iwl_send_cmd_pdu(priv
, COEX_PRIORITY_TABLE_CMD
,
2963 sizeof(coex_cmd
), &coex_cmd
);
2965 EXPORT_SYMBOL(iwl_send_wimax_coex
);
2967 #ifdef CONFIG_IWLWIFI_DEBUGFS
2969 #define IWL_TRAFFIC_DUMP_SIZE (IWL_TRAFFIC_ENTRY_SIZE * IWL_TRAFFIC_ENTRIES)
2971 void iwl_reset_traffic_log(struct iwl_priv
*priv
)
2973 priv
->tx_traffic_idx
= 0;
2974 priv
->rx_traffic_idx
= 0;
2975 if (priv
->tx_traffic
)
2976 memset(priv
->tx_traffic
, 0, IWL_TRAFFIC_DUMP_SIZE
);
2977 if (priv
->rx_traffic
)
2978 memset(priv
->rx_traffic
, 0, IWL_TRAFFIC_DUMP_SIZE
);
2981 int iwl_alloc_traffic_mem(struct iwl_priv
*priv
)
2983 u32 traffic_size
= IWL_TRAFFIC_DUMP_SIZE
;
2985 if (iwl_debug_level
& IWL_DL_TX
) {
2986 if (!priv
->tx_traffic
) {
2988 kzalloc(traffic_size
, GFP_KERNEL
);
2989 if (!priv
->tx_traffic
)
2993 if (iwl_debug_level
& IWL_DL_RX
) {
2994 if (!priv
->rx_traffic
) {
2996 kzalloc(traffic_size
, GFP_KERNEL
);
2997 if (!priv
->rx_traffic
)
3001 iwl_reset_traffic_log(priv
);
3004 EXPORT_SYMBOL(iwl_alloc_traffic_mem
);
3006 void iwl_free_traffic_mem(struct iwl_priv
*priv
)
3008 kfree(priv
->tx_traffic
);
3009 priv
->tx_traffic
= NULL
;
3011 kfree(priv
->rx_traffic
);
3012 priv
->rx_traffic
= NULL
;
3014 EXPORT_SYMBOL(iwl_free_traffic_mem
);
3016 void iwl_dbg_log_tx_data_frame(struct iwl_priv
*priv
,
3017 u16 length
, struct ieee80211_hdr
*header
)
3022 if (likely(!(iwl_debug_level
& IWL_DL_TX
)))
3025 if (!priv
->tx_traffic
)
3028 fc
= header
->frame_control
;
3029 if (ieee80211_is_data(fc
)) {
3030 len
= (length
> IWL_TRAFFIC_ENTRY_SIZE
)
3031 ? IWL_TRAFFIC_ENTRY_SIZE
: length
;
3032 memcpy((priv
->tx_traffic
+
3033 (priv
->tx_traffic_idx
* IWL_TRAFFIC_ENTRY_SIZE
)),
3035 priv
->tx_traffic_idx
=
3036 (priv
->tx_traffic_idx
+ 1) % IWL_TRAFFIC_ENTRIES
;
3039 EXPORT_SYMBOL(iwl_dbg_log_tx_data_frame
);
3041 void iwl_dbg_log_rx_data_frame(struct iwl_priv
*priv
,
3042 u16 length
, struct ieee80211_hdr
*header
)
3047 if (likely(!(iwl_debug_level
& IWL_DL_RX
)))
3050 if (!priv
->rx_traffic
)
3053 fc
= header
->frame_control
;
3054 if (ieee80211_is_data(fc
)) {
3055 len
= (length
> IWL_TRAFFIC_ENTRY_SIZE
)
3056 ? IWL_TRAFFIC_ENTRY_SIZE
: length
;
3057 memcpy((priv
->rx_traffic
+
3058 (priv
->rx_traffic_idx
* IWL_TRAFFIC_ENTRY_SIZE
)),
3060 priv
->rx_traffic_idx
=
3061 (priv
->rx_traffic_idx
+ 1) % IWL_TRAFFIC_ENTRIES
;
3064 EXPORT_SYMBOL(iwl_dbg_log_rx_data_frame
);
3066 const char *get_mgmt_string(int cmd
)
3069 IWL_CMD(MANAGEMENT_ASSOC_REQ
);
3070 IWL_CMD(MANAGEMENT_ASSOC_RESP
);
3071 IWL_CMD(MANAGEMENT_REASSOC_REQ
);
3072 IWL_CMD(MANAGEMENT_REASSOC_RESP
);
3073 IWL_CMD(MANAGEMENT_PROBE_REQ
);
3074 IWL_CMD(MANAGEMENT_PROBE_RESP
);
3075 IWL_CMD(MANAGEMENT_BEACON
);
3076 IWL_CMD(MANAGEMENT_ATIM
);
3077 IWL_CMD(MANAGEMENT_DISASSOC
);
3078 IWL_CMD(MANAGEMENT_AUTH
);
3079 IWL_CMD(MANAGEMENT_DEAUTH
);
3080 IWL_CMD(MANAGEMENT_ACTION
);
3087 const char *get_ctrl_string(int cmd
)
3090 IWL_CMD(CONTROL_BACK_REQ
);
3091 IWL_CMD(CONTROL_BACK
);
3092 IWL_CMD(CONTROL_PSPOLL
);
3093 IWL_CMD(CONTROL_RTS
);
3094 IWL_CMD(CONTROL_CTS
);
3095 IWL_CMD(CONTROL_ACK
);
3096 IWL_CMD(CONTROL_CFEND
);
3097 IWL_CMD(CONTROL_CFENDACK
);
3104 void iwl_clear_traffic_stats(struct iwl_priv
*priv
)
3106 memset(&priv
->tx_stats
, 0, sizeof(struct traffic_stats
));
3107 memset(&priv
->rx_stats
, 0, sizeof(struct traffic_stats
));
3112 * if CONFIG_IWLWIFI_DEBUGFS defined, iwl_update_stats function will
3113 * record all the MGMT, CTRL and DATA pkt for both TX and Rx pass.
3114 * Use debugFs to display the rx/rx_statistics
3115 * if CONFIG_IWLWIFI_DEBUGFS not being defined, then no MGMT and CTRL
3116 * information will be recorded, but DATA pkt still will be recorded
3117 * for the reason of iwl_led.c need to control the led blinking based on
3118 * number of tx and rx data.
3121 void iwl_update_stats(struct iwl_priv
*priv
, bool is_tx
, __le16 fc
, u16 len
)
3123 struct traffic_stats
*stats
;
3126 stats
= &priv
->tx_stats
;
3128 stats
= &priv
->rx_stats
;
3130 if (ieee80211_is_mgmt(fc
)) {
3131 switch (fc
& cpu_to_le16(IEEE80211_FCTL_STYPE
)) {
3132 case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ
):
3133 stats
->mgmt
[MANAGEMENT_ASSOC_REQ
]++;
3135 case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP
):
3136 stats
->mgmt
[MANAGEMENT_ASSOC_RESP
]++;
3138 case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ
):
3139 stats
->mgmt
[MANAGEMENT_REASSOC_REQ
]++;
3141 case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP
):
3142 stats
->mgmt
[MANAGEMENT_REASSOC_RESP
]++;
3144 case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
):
3145 stats
->mgmt
[MANAGEMENT_PROBE_REQ
]++;
3147 case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP
):
3148 stats
->mgmt
[MANAGEMENT_PROBE_RESP
]++;
3150 case cpu_to_le16(IEEE80211_STYPE_BEACON
):
3151 stats
->mgmt
[MANAGEMENT_BEACON
]++;
3153 case cpu_to_le16(IEEE80211_STYPE_ATIM
):
3154 stats
->mgmt
[MANAGEMENT_ATIM
]++;
3156 case cpu_to_le16(IEEE80211_STYPE_DISASSOC
):
3157 stats
->mgmt
[MANAGEMENT_DISASSOC
]++;
3159 case cpu_to_le16(IEEE80211_STYPE_AUTH
):
3160 stats
->mgmt
[MANAGEMENT_AUTH
]++;
3162 case cpu_to_le16(IEEE80211_STYPE_DEAUTH
):
3163 stats
->mgmt
[MANAGEMENT_DEAUTH
]++;
3165 case cpu_to_le16(IEEE80211_STYPE_ACTION
):
3166 stats
->mgmt
[MANAGEMENT_ACTION
]++;
3169 } else if (ieee80211_is_ctl(fc
)) {
3170 switch (fc
& cpu_to_le16(IEEE80211_FCTL_STYPE
)) {
3171 case cpu_to_le16(IEEE80211_STYPE_BACK_REQ
):
3172 stats
->ctrl
[CONTROL_BACK_REQ
]++;
3174 case cpu_to_le16(IEEE80211_STYPE_BACK
):
3175 stats
->ctrl
[CONTROL_BACK
]++;
3177 case cpu_to_le16(IEEE80211_STYPE_PSPOLL
):
3178 stats
->ctrl
[CONTROL_PSPOLL
]++;
3180 case cpu_to_le16(IEEE80211_STYPE_RTS
):
3181 stats
->ctrl
[CONTROL_RTS
]++;
3183 case cpu_to_le16(IEEE80211_STYPE_CTS
):
3184 stats
->ctrl
[CONTROL_CTS
]++;
3186 case cpu_to_le16(IEEE80211_STYPE_ACK
):
3187 stats
->ctrl
[CONTROL_ACK
]++;
3189 case cpu_to_le16(IEEE80211_STYPE_CFEND
):
3190 stats
->ctrl
[CONTROL_CFEND
]++;
3192 case cpu_to_le16(IEEE80211_STYPE_CFENDACK
):
3193 stats
->ctrl
[CONTROL_CFENDACK
]++;
3199 stats
->data_bytes
+= len
;
3201 iwl_leds_background(priv
);
3203 EXPORT_SYMBOL(iwl_update_stats
);
3206 const static char *get_csr_string(int cmd
)
3209 IWL_CMD(CSR_HW_IF_CONFIG_REG
);
3210 IWL_CMD(CSR_INT_COALESCING
);
3212 IWL_CMD(CSR_INT_MASK
);
3213 IWL_CMD(CSR_FH_INT_STATUS
);
3214 IWL_CMD(CSR_GPIO_IN
);
3216 IWL_CMD(CSR_GP_CNTRL
);
3217 IWL_CMD(CSR_HW_REV
);
3218 IWL_CMD(CSR_EEPROM_REG
);
3219 IWL_CMD(CSR_EEPROM_GP
);
3220 IWL_CMD(CSR_OTP_GP_REG
);
3221 IWL_CMD(CSR_GIO_REG
);
3222 IWL_CMD(CSR_GP_UCODE_REG
);
3223 IWL_CMD(CSR_GP_DRIVER_REG
);
3224 IWL_CMD(CSR_UCODE_DRV_GP1
);
3225 IWL_CMD(CSR_UCODE_DRV_GP2
);
3226 IWL_CMD(CSR_LED_REG
);
3227 IWL_CMD(CSR_DRAM_INT_TBL_REG
);
3228 IWL_CMD(CSR_GIO_CHICKEN_BITS
);
3229 IWL_CMD(CSR_ANA_PLL_CFG
);
3230 IWL_CMD(CSR_HW_REV_WA_REG
);
3231 IWL_CMD(CSR_DBG_HPET_MEM_REG
);
3238 void iwl_dump_csr(struct iwl_priv
*priv
)
3242 CSR_HW_IF_CONFIG_REG
,
3260 CSR_DRAM_INT_TBL_REG
,
3261 CSR_GIO_CHICKEN_BITS
,
3264 CSR_DBG_HPET_MEM_REG
3266 IWL_ERR(priv
, "CSR values:\n");
3267 IWL_ERR(priv
, "(2nd byte of CSR_INT_COALESCING is "
3268 "CSR_INT_PERIODIC_REG)\n");
3269 for (i
= 0; i
< ARRAY_SIZE(csr_tbl
); i
++) {
3270 IWL_ERR(priv
, " %25s: 0X%08x\n",
3271 get_csr_string(csr_tbl
[i
]),
3272 iwl_read32(priv
, csr_tbl
[i
]));
3275 EXPORT_SYMBOL(iwl_dump_csr
);
3277 const static char *get_fh_string(int cmd
)
3280 IWL_CMD(FH_RSCSR_CHNL0_STTS_WPTR_REG
);
3281 IWL_CMD(FH_RSCSR_CHNL0_RBDCB_BASE_REG
);
3282 IWL_CMD(FH_RSCSR_CHNL0_WPTR
);
3283 IWL_CMD(FH_MEM_RCSR_CHNL0_CONFIG_REG
);
3284 IWL_CMD(FH_MEM_RSSR_SHARED_CTRL_REG
);
3285 IWL_CMD(FH_MEM_RSSR_RX_STATUS_REG
);
3286 IWL_CMD(FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV
);
3287 IWL_CMD(FH_TSSR_TX_STATUS_REG
);
3288 IWL_CMD(FH_TSSR_TX_ERROR_REG
);
3295 int iwl_dump_fh(struct iwl_priv
*priv
, char **buf
, bool display
)
3298 #ifdef CONFIG_IWLWIFI_DEBUG
3303 FH_RSCSR_CHNL0_STTS_WPTR_REG
,
3304 FH_RSCSR_CHNL0_RBDCB_BASE_REG
,
3305 FH_RSCSR_CHNL0_WPTR
,
3306 FH_MEM_RCSR_CHNL0_CONFIG_REG
,
3307 FH_MEM_RSSR_SHARED_CTRL_REG
,
3308 FH_MEM_RSSR_RX_STATUS_REG
,
3309 FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV
,
3310 FH_TSSR_TX_STATUS_REG
,
3311 FH_TSSR_TX_ERROR_REG
3313 #ifdef CONFIG_IWLWIFI_DEBUG
3315 bufsz
= ARRAY_SIZE(fh_tbl
) * 48 + 40;
3316 *buf
= kmalloc(bufsz
, GFP_KERNEL
);
3319 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
3320 "FH register values:\n");
3321 for (i
= 0; i
< ARRAY_SIZE(fh_tbl
); i
++) {
3322 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
3324 get_fh_string(fh_tbl
[i
]),
3325 iwl_read_direct32(priv
, fh_tbl
[i
]));
3330 IWL_ERR(priv
, "FH register values:\n");
3331 for (i
= 0; i
< ARRAY_SIZE(fh_tbl
); i
++) {
3332 IWL_ERR(priv
, " %34s: 0X%08x\n",
3333 get_fh_string(fh_tbl
[i
]),
3334 iwl_read_direct32(priv
, fh_tbl
[i
]));
3338 EXPORT_SYMBOL(iwl_dump_fh
);
3340 static void iwl_force_rf_reset(struct iwl_priv
*priv
)
3342 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3345 if (!iwl_is_associated(priv
)) {
3346 IWL_DEBUG_SCAN(priv
, "force reset rejected: not associated\n");
3350 * There is no easy and better way to force reset the radio,
3351 * the only known method is switching channel which will force to
3352 * reset and tune the radio.
3353 * Use internal short scan (single channel) operation to should
3354 * achieve this objective.
3355 * Driver should reset the radio when number of consecutive missed
3356 * beacon, or any other uCode error condition detected.
3358 IWL_DEBUG_INFO(priv
, "perform radio reset.\n");
3359 iwl_internal_short_hw_scan(priv
);
3363 int iwl_force_reset(struct iwl_priv
*priv
, int mode
)
3365 struct iwl_force_reset
*force_reset
;
3367 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3370 if (mode
>= IWL_MAX_FORCE_RESET
) {
3371 IWL_DEBUG_INFO(priv
, "invalid reset request.\n");
3374 force_reset
= &priv
->force_reset
[mode
];
3375 force_reset
->reset_request_count
++;
3376 if (force_reset
->last_force_reset_jiffies
&&
3377 time_after(force_reset
->last_force_reset_jiffies
+
3378 force_reset
->reset_duration
, jiffies
)) {
3379 IWL_DEBUG_INFO(priv
, "force reset rejected\n");
3380 force_reset
->reset_reject_count
++;
3383 force_reset
->reset_success_count
++;
3384 force_reset
->last_force_reset_jiffies
= jiffies
;
3385 IWL_DEBUG_INFO(priv
, "perform force reset (%d)\n", mode
);
3388 iwl_force_rf_reset(priv
);
3391 IWL_ERR(priv
, "On demand firmware reload\n");
3392 /* Set the FW error flag -- cleared on iwl_down */
3393 set_bit(STATUS_FW_ERROR
, &priv
->status
);
3394 wake_up_interruptible(&priv
->wait_command_queue
);
3396 * Keep the restart process from trying to send host
3397 * commands by clearing the INIT status bit
3399 clear_bit(STATUS_READY
, &priv
->status
);
3400 queue_work(priv
->workqueue
, &priv
->restart
);
3408 int iwl_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
3410 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
3413 * This function is called when system goes into suspend state
3414 * mac80211 will call iwl_mac_stop() from the mac80211 suspend function
3415 * first but since iwl_mac_stop() has no knowledge of who the caller is,
3416 * it will not call apm_ops.stop() to stop the DMA operation.
3417 * Calling apm_ops.stop here to make sure we stop the DMA.
3419 priv
->cfg
->ops
->lib
->apm_ops
.stop(priv
);
3421 pci_save_state(pdev
);
3422 pci_disable_device(pdev
);
3423 pci_set_power_state(pdev
, PCI_D3hot
);
3427 EXPORT_SYMBOL(iwl_pci_suspend
);
3429 int iwl_pci_resume(struct pci_dev
*pdev
)
3431 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
3434 pci_set_power_state(pdev
, PCI_D0
);
3435 ret
= pci_enable_device(pdev
);
3438 pci_restore_state(pdev
);
3439 iwl_enable_interrupts(priv
);
3443 EXPORT_SYMBOL(iwl_pci_resume
);
3445 #endif /* CONFIG_PM */