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 and init all Tx and Command queues */
311 ret
= iwl_txq_ctx_reset(priv
);
315 set_bit(STATUS_INIT
, &priv
->status
);
319 EXPORT_SYMBOL(iwl_hw_nic_init
);
324 void iwl_activate_qos(struct iwl_priv
*priv
, u8 force
)
326 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
329 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
331 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
332 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
333 priv
->qos_data
.def_qos_parm
.qos_flags
|=
334 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
335 if (priv
->qos_data
.qos_active
)
336 priv
->qos_data
.def_qos_parm
.qos_flags
|=
337 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
339 if (priv
->current_ht_config
.is_ht
)
340 priv
->qos_data
.def_qos_parm
.qos_flags
|= QOS_PARAM_FLG_TGN_MSK
;
342 if (force
|| iwl_is_associated(priv
)) {
343 IWL_DEBUG_QOS(priv
, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
344 priv
->qos_data
.qos_active
,
345 priv
->qos_data
.def_qos_parm
.qos_flags
);
347 iwl_send_cmd_pdu_async(priv
, REPLY_QOS_PARAM
,
348 sizeof(struct iwl_qosparam_cmd
),
349 &priv
->qos_data
.def_qos_parm
, NULL
);
352 EXPORT_SYMBOL(iwl_activate_qos
);
355 * AC CWmin CW max AIFSN TXOP Limit TXOP Limit
356 * (802.11b) (802.11a/g)
357 * AC_BK 15 1023 7 0 0
358 * AC_BE 15 1023 3 0 0
359 * AC_VI 7 15 2 6.016ms 3.008ms
360 * AC_VO 3 7 2 3.264ms 1.504ms
362 void iwl_reset_qos(struct iwl_priv
*priv
)
367 bool is_legacy
= false;
371 spin_lock_irqsave(&priv
->lock
, flags
);
372 /* QoS always active in AP and ADHOC mode
373 * In STA mode wait for association
375 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
||
376 priv
->iw_mode
== NL80211_IFTYPE_AP
)
377 priv
->qos_data
.qos_active
= 1;
379 priv
->qos_data
.qos_active
= 0;
381 /* check for legacy mode */
382 if ((priv
->iw_mode
== NL80211_IFTYPE_ADHOC
&&
383 (priv
->active_rate
& IWL_OFDM_RATES_MASK
) == 0) ||
384 (priv
->iw_mode
== NL80211_IFTYPE_STATION
&&
385 (priv
->staging_rxon
.flags
& RXON_FLG_SHORT_SLOT_MSK
) == 0)) {
390 if (priv
->qos_data
.qos_active
)
394 priv
->qos_data
.def_qos_parm
.ac
[0].cw_min
= cpu_to_le16(cw_min
);
395 priv
->qos_data
.def_qos_parm
.ac
[0].cw_max
= cpu_to_le16(cw_max
);
396 priv
->qos_data
.def_qos_parm
.ac
[0].aifsn
= aifs
;
397 priv
->qos_data
.def_qos_parm
.ac
[0].edca_txop
= 0;
398 priv
->qos_data
.def_qos_parm
.ac
[0].reserved1
= 0;
400 if (priv
->qos_data
.qos_active
) {
403 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
= cpu_to_le16(cw_min
);
404 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
= cpu_to_le16(cw_max
);
405 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 7;
406 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
407 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
411 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
412 cpu_to_le16((cw_min
+ 1) / 2 - 1);
413 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
415 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
417 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
420 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
422 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
426 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
427 cpu_to_le16((cw_min
+ 1) / 4 - 1);
428 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
429 cpu_to_le16((cw_min
+ 1) / 2 - 1);
430 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
431 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
433 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
436 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
439 for (i
= 1; i
< 4; i
++) {
440 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
442 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
444 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= aifs
;
445 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
446 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
449 IWL_DEBUG_QOS(priv
, "set QoS to default \n");
451 spin_unlock_irqrestore(&priv
->lock
, flags
);
453 EXPORT_SYMBOL(iwl_reset_qos
);
455 #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
456 #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
457 static void iwlcore_init_ht_hw_capab(const struct iwl_priv
*priv
,
458 struct ieee80211_sta_ht_cap
*ht_info
,
459 enum ieee80211_band band
)
461 u16 max_bit_rate
= 0;
462 u8 rx_chains_num
= priv
->hw_params
.rx_chains_num
;
463 u8 tx_chains_num
= priv
->hw_params
.tx_chains_num
;
466 memset(&ht_info
->mcs
, 0, sizeof(ht_info
->mcs
));
468 ht_info
->ht_supported
= true;
470 if (priv
->cfg
->ht_greenfield_support
)
471 ht_info
->cap
|= IEEE80211_HT_CAP_GRN_FLD
;
472 ht_info
->cap
|= IEEE80211_HT_CAP_SGI_20
;
473 max_bit_rate
= MAX_BIT_RATE_20_MHZ
;
474 if (priv
->hw_params
.ht40_channel
& BIT(band
)) {
475 ht_info
->cap
|= IEEE80211_HT_CAP_SUP_WIDTH_20_40
;
476 ht_info
->cap
|= IEEE80211_HT_CAP_SGI_40
;
477 ht_info
->mcs
.rx_mask
[4] = 0x01;
478 max_bit_rate
= MAX_BIT_RATE_40_MHZ
;
481 if (priv
->cfg
->mod_params
->amsdu_size_8K
)
482 ht_info
->cap
|= IEEE80211_HT_CAP_MAX_AMSDU
;
484 ht_info
->ampdu_factor
= CFG_HT_RX_AMPDU_FACTOR_DEF
;
485 ht_info
->ampdu_density
= CFG_HT_MPDU_DENSITY_DEF
;
487 ht_info
->mcs
.rx_mask
[0] = 0xFF;
488 if (rx_chains_num
>= 2)
489 ht_info
->mcs
.rx_mask
[1] = 0xFF;
490 if (rx_chains_num
>= 3)
491 ht_info
->mcs
.rx_mask
[2] = 0xFF;
493 /* Highest supported Rx data rate */
494 max_bit_rate
*= rx_chains_num
;
495 WARN_ON(max_bit_rate
& ~IEEE80211_HT_MCS_RX_HIGHEST_MASK
);
496 ht_info
->mcs
.rx_highest
= cpu_to_le16(max_bit_rate
);
498 /* Tx MCS capabilities */
499 ht_info
->mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
500 if (tx_chains_num
!= rx_chains_num
) {
501 ht_info
->mcs
.tx_params
|= IEEE80211_HT_MCS_TX_RX_DIFF
;
502 ht_info
->mcs
.tx_params
|= ((tx_chains_num
- 1) <<
503 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
);
508 * iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom
510 int iwlcore_init_geos(struct iwl_priv
*priv
)
512 struct iwl_channel_info
*ch
;
513 struct ieee80211_supported_band
*sband
;
514 struct ieee80211_channel
*channels
;
515 struct ieee80211_channel
*geo_ch
;
516 struct ieee80211_rate
*rates
;
519 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
520 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
521 IWL_DEBUG_INFO(priv
, "Geography modes already initialized.\n");
522 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
526 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
527 priv
->channel_count
, GFP_KERNEL
);
531 rates
= kzalloc((sizeof(struct ieee80211_rate
) * IWL_RATE_COUNT_LEGACY
),
538 /* 5.2GHz channels start after the 2.4GHz channels */
539 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
540 sband
->channels
= &channels
[ARRAY_SIZE(iwl_eeprom_band_1
)];
542 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
543 sband
->n_bitrates
= IWL_RATE_COUNT_LEGACY
- IWL_FIRST_OFDM_RATE
;
545 if (priv
->cfg
->sku
& IWL_SKU_N
)
546 iwlcore_init_ht_hw_capab(priv
, &sband
->ht_cap
,
547 IEEE80211_BAND_5GHZ
);
549 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
550 sband
->channels
= channels
;
552 sband
->bitrates
= rates
;
553 sband
->n_bitrates
= IWL_RATE_COUNT_LEGACY
;
555 if (priv
->cfg
->sku
& IWL_SKU_N
)
556 iwlcore_init_ht_hw_capab(priv
, &sband
->ht_cap
,
557 IEEE80211_BAND_2GHZ
);
559 priv
->ieee_channels
= channels
;
560 priv
->ieee_rates
= rates
;
562 for (i
= 0; i
< priv
->channel_count
; i
++) {
563 ch
= &priv
->channel_info
[i
];
565 /* FIXME: might be removed if scan is OK */
566 if (!is_channel_valid(ch
))
569 if (is_channel_a_band(ch
))
570 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
572 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
574 geo_ch
= &sband
->channels
[sband
->n_channels
++];
576 geo_ch
->center_freq
=
577 ieee80211_channel_to_frequency(ch
->channel
);
578 geo_ch
->max_power
= ch
->max_power_avg
;
579 geo_ch
->max_antenna_gain
= 0xff;
580 geo_ch
->hw_value
= ch
->channel
;
582 if (is_channel_valid(ch
)) {
583 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
584 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
586 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
587 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
589 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
590 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
592 geo_ch
->flags
|= ch
->ht40_extension_channel
;
594 if (ch
->max_power_avg
> priv
->tx_power_device_lmt
)
595 priv
->tx_power_device_lmt
= ch
->max_power_avg
;
597 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
600 IWL_DEBUG_INFO(priv
, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n",
601 ch
->channel
, geo_ch
->center_freq
,
602 is_channel_a_band(ch
) ? "5.2" : "2.4",
603 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
604 "restricted" : "valid",
608 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) &&
609 priv
->cfg
->sku
& IWL_SKU_A
) {
610 IWL_INFO(priv
, "Incorrectly detected BG card as ABG. "
611 "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
612 priv
->pci_dev
->device
,
613 priv
->pci_dev
->subsystem_device
);
614 priv
->cfg
->sku
&= ~IWL_SKU_A
;
617 IWL_INFO(priv
, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
618 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
619 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
621 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
625 EXPORT_SYMBOL(iwlcore_init_geos
);
628 * iwlcore_free_geos - undo allocations in iwlcore_init_geos
630 void iwlcore_free_geos(struct iwl_priv
*priv
)
632 kfree(priv
->ieee_channels
);
633 kfree(priv
->ieee_rates
);
634 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
636 EXPORT_SYMBOL(iwlcore_free_geos
);
639 * iwlcore_rts_tx_cmd_flag: Set rts/cts. 3945 and 4965 only share this
642 void iwlcore_rts_tx_cmd_flag(struct ieee80211_tx_info
*info
,
645 if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_USE_RTS_CTS
) {
646 *tx_flags
|= TX_CMD_FLG_RTS_MSK
;
647 *tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
648 } else if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_USE_CTS_PROTECT
) {
649 *tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
650 *tx_flags
|= TX_CMD_FLG_CTS_MSK
;
653 EXPORT_SYMBOL(iwlcore_rts_tx_cmd_flag
);
655 static bool is_single_rx_stream(struct iwl_priv
*priv
)
657 return priv
->current_ht_config
.smps
== IEEE80211_SMPS_STATIC
||
658 priv
->current_ht_config
.single_chain_sufficient
;
661 static u8
iwl_is_channel_extension(struct iwl_priv
*priv
,
662 enum ieee80211_band band
,
663 u16 channel
, u8 extension_chan_offset
)
665 const struct iwl_channel_info
*ch_info
;
667 ch_info
= iwl_get_channel_info(priv
, band
, channel
);
668 if (!is_channel_valid(ch_info
))
671 if (extension_chan_offset
== IEEE80211_HT_PARAM_CHA_SEC_ABOVE
)
672 return !(ch_info
->ht40_extension_channel
&
673 IEEE80211_CHAN_NO_HT40PLUS
);
674 else if (extension_chan_offset
== IEEE80211_HT_PARAM_CHA_SEC_BELOW
)
675 return !(ch_info
->ht40_extension_channel
&
676 IEEE80211_CHAN_NO_HT40MINUS
);
681 u8
iwl_is_ht40_tx_allowed(struct iwl_priv
*priv
,
682 struct ieee80211_sta_ht_cap
*sta_ht_inf
)
684 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
686 if (!ht_conf
->is_ht
|| !ht_conf
->is_40mhz
)
689 /* We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40
690 * the bit will not set if it is pure 40MHz case
693 if (!sta_ht_inf
->ht_supported
)
696 #ifdef CONFIG_IWLWIFI_DEBUG
697 if (priv
->disable_ht40
)
700 return iwl_is_channel_extension(priv
, priv
->band
,
701 le16_to_cpu(priv
->staging_rxon
.channel
),
702 ht_conf
->extension_chan_offset
);
704 EXPORT_SYMBOL(iwl_is_ht40_tx_allowed
);
706 static u16
iwl_adjust_beacon_interval(u16 beacon_val
, u16 max_beacon_val
)
709 u16 beacon_factor
= 0;
711 beacon_factor
= (beacon_val
+ max_beacon_val
) / max_beacon_val
;
712 new_val
= beacon_val
/ beacon_factor
;
715 new_val
= max_beacon_val
;
720 void iwl_setup_rxon_timing(struct iwl_priv
*priv
)
723 s32 interval_tm
, rem
;
725 struct ieee80211_conf
*conf
= NULL
;
728 conf
= ieee80211_get_hw_conf(priv
->hw
);
730 spin_lock_irqsave(&priv
->lock
, flags
);
731 priv
->rxon_timing
.timestamp
= cpu_to_le64(priv
->timestamp
);
732 priv
->rxon_timing
.listen_interval
= cpu_to_le16(conf
->listen_interval
);
734 if (priv
->iw_mode
== NL80211_IFTYPE_STATION
) {
735 beacon_int
= priv
->beacon_int
;
736 priv
->rxon_timing
.atim_window
= 0;
738 beacon_int
= priv
->vif
->bss_conf
.beacon_int
;
740 /* TODO: we need to get atim_window from upper stack
741 * for now we set to 0 */
742 priv
->rxon_timing
.atim_window
= 0;
745 beacon_int
= iwl_adjust_beacon_interval(beacon_int
,
746 priv
->hw_params
.max_beacon_itrvl
* 1024);
747 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(beacon_int
);
749 tsf
= priv
->timestamp
; /* tsf is modifed by do_div: copy it */
750 interval_tm
= beacon_int
* 1024;
751 rem
= do_div(tsf
, interval_tm
);
752 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(interval_tm
- rem
);
754 spin_unlock_irqrestore(&priv
->lock
, flags
);
755 IWL_DEBUG_ASSOC(priv
,
756 "beacon interval %d beacon timer %d beacon tim %d\n",
757 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
758 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
759 le16_to_cpu(priv
->rxon_timing
.atim_window
));
761 EXPORT_SYMBOL(iwl_setup_rxon_timing
);
763 void iwl_set_rxon_hwcrypto(struct iwl_priv
*priv
, int hw_decrypt
)
765 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
768 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
770 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
773 EXPORT_SYMBOL(iwl_set_rxon_hwcrypto
);
776 * iwl_check_rxon_cmd - validate RXON structure is valid
778 * NOTE: This is really only useful during development and can eventually
779 * be #ifdef'd out once the driver is stable and folks aren't actively
782 int iwl_check_rxon_cmd(struct iwl_priv
*priv
)
786 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
788 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
789 error
|= le32_to_cpu(rxon
->flags
&
790 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
791 RXON_FLG_RADAR_DETECT_MSK
));
793 IWL_WARN(priv
, "check 24G fields %d | %d\n",
796 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
797 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
799 IWL_WARN(priv
, "check 52 fields %d | %d\n",
801 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
803 IWL_WARN(priv
, "check 52 CCK %d | %d\n",
806 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
808 IWL_WARN(priv
, "check mac addr %d | %d\n", counter
++, error
);
810 /* make sure basic rates 6Mbps and 1Mbps are supported */
811 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
812 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
814 IWL_WARN(priv
, "check basic rate %d | %d\n", counter
++, error
);
816 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
818 IWL_WARN(priv
, "check assoc id %d | %d\n", counter
++, error
);
820 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
821 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
823 IWL_WARN(priv
, "check CCK and short slot %d | %d\n",
826 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
827 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
829 IWL_WARN(priv
, "check CCK & auto detect %d | %d\n",
832 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
833 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
835 IWL_WARN(priv
, "check TGG and auto detect %d | %d\n",
839 IWL_WARN(priv
, "Tuning to channel %d\n",
840 le16_to_cpu(rxon
->channel
));
843 IWL_ERR(priv
, "Not a valid iwl_rxon_assoc_cmd field values\n");
848 EXPORT_SYMBOL(iwl_check_rxon_cmd
);
851 * iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
852 * @priv: staging_rxon is compared to active_rxon
854 * If the RXON structure is changing enough to require a new tune,
855 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
856 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
858 int iwl_full_rxon_required(struct iwl_priv
*priv
)
861 /* These items are only settable from the full RXON command */
862 if (!(iwl_is_associated(priv
)) ||
863 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
864 priv
->active_rxon
.bssid_addr
) ||
865 compare_ether_addr(priv
->staging_rxon
.node_addr
,
866 priv
->active_rxon
.node_addr
) ||
867 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
868 priv
->active_rxon
.wlap_bssid_addr
) ||
869 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
870 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
871 (priv
->staging_rxon
.air_propagation
!=
872 priv
->active_rxon
.air_propagation
) ||
873 (priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
!=
874 priv
->active_rxon
.ofdm_ht_single_stream_basic_rates
) ||
875 (priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
!=
876 priv
->active_rxon
.ofdm_ht_dual_stream_basic_rates
) ||
877 (priv
->staging_rxon
.ofdm_ht_triple_stream_basic_rates
!=
878 priv
->active_rxon
.ofdm_ht_triple_stream_basic_rates
) ||
879 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
882 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
883 * be updated with the RXON_ASSOC command -- however only some
884 * flag transitions are allowed using RXON_ASSOC */
886 /* Check if we are not switching bands */
887 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
888 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
891 /* Check if we are switching association toggle */
892 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
893 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
898 EXPORT_SYMBOL(iwl_full_rxon_required
);
900 u8
iwl_rate_get_lowest_plcp(struct iwl_priv
*priv
)
906 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
907 rate_mask
= priv
->active_rate_basic
& IWL_CCK_RATES_MASK
;
909 rate_mask
= priv
->active_rate_basic
& IWL_OFDM_RATES_MASK
;
911 /* Find lowest valid rate */
912 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
913 i
= iwl_rates
[i
].next_ieee
) {
914 if (rate_mask
& (1 << i
))
915 return iwl_rates
[i
].plcp
;
918 /* No valid rate was found. Assign the lowest one */
919 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
920 return IWL_RATE_1M_PLCP
;
922 return IWL_RATE_6M_PLCP
;
924 EXPORT_SYMBOL(iwl_rate_get_lowest_plcp
);
926 void iwl_set_rxon_ht(struct iwl_priv
*priv
, struct iwl_ht_config
*ht_conf
)
928 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
930 if (!ht_conf
->is_ht
) {
931 rxon
->flags
&= ~(RXON_FLG_CHANNEL_MODE_MSK
|
932 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
|
933 RXON_FLG_HT40_PROT_MSK
|
934 RXON_FLG_HT_PROT_MSK
);
938 /* FIXME: if the definition of ht_protection changed, the "translation"
939 * will be needed for rxon->flags
941 rxon
->flags
|= cpu_to_le32(ht_conf
->ht_protection
<< RXON_FLG_HT_OPERATING_MODE_POS
);
943 /* Set up channel bandwidth:
944 * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */
945 /* clear the HT channel mode before set the mode */
946 rxon
->flags
&= ~(RXON_FLG_CHANNEL_MODE_MSK
|
947 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
);
948 if (iwl_is_ht40_tx_allowed(priv
, NULL
)) {
950 if (ht_conf
->ht_protection
== IEEE80211_HT_OP_MODE_PROTECTION_20MHZ
) {
951 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_PURE_40
;
952 /* Note: control channel is opposite of extension channel */
953 switch (ht_conf
->extension_chan_offset
) {
954 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE
:
955 rxon
->flags
&= ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
;
957 case IEEE80211_HT_PARAM_CHA_SEC_BELOW
:
958 rxon
->flags
|= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
;
962 /* Note: control channel is opposite of extension channel */
963 switch (ht_conf
->extension_chan_offset
) {
964 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE
:
965 rxon
->flags
&= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
);
966 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_MIXED
;
968 case IEEE80211_HT_PARAM_CHA_SEC_BELOW
:
969 rxon
->flags
|= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
;
970 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_MIXED
;
972 case IEEE80211_HT_PARAM_CHA_SEC_NONE
:
974 /* channel location only valid if in Mixed mode */
975 IWL_ERR(priv
, "invalid extension channel offset\n");
980 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_LEGACY
;
983 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
984 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
986 IWL_DEBUG_ASSOC(priv
, "rxon flags 0x%X operation mode :0x%X "
987 "extension channel offset 0x%x\n",
988 le32_to_cpu(rxon
->flags
), ht_conf
->ht_protection
,
989 ht_conf
->extension_chan_offset
);
992 EXPORT_SYMBOL(iwl_set_rxon_ht
);
994 #define IWL_NUM_RX_CHAINS_MULTIPLE 3
995 #define IWL_NUM_RX_CHAINS_SINGLE 2
996 #define IWL_NUM_IDLE_CHAINS_DUAL 2
997 #define IWL_NUM_IDLE_CHAINS_SINGLE 1
1000 * Determine how many receiver/antenna chains to use.
1002 * More provides better reception via diversity. Fewer saves power
1003 * at the expense of throughput, but only when not in powersave to
1006 * MIMO (dual stream) requires at least 2, but works better with 3.
1007 * This does not determine *which* chains to use, just how many.
1009 static int iwl_get_active_rx_chain_count(struct iwl_priv
*priv
)
1011 /* # of Rx chains to use when expecting MIMO. */
1012 if (is_single_rx_stream(priv
))
1013 return IWL_NUM_RX_CHAINS_SINGLE
;
1015 return IWL_NUM_RX_CHAINS_MULTIPLE
;
1019 * When we are in power saving mode, unless device support spatial
1020 * multiplexing power save, use the active count for rx chain count.
1022 static int iwl_get_idle_rx_chain_count(struct iwl_priv
*priv
, int active_cnt
)
1024 /* # Rx chains when idling, depending on SMPS mode */
1025 switch (priv
->current_ht_config
.smps
) {
1026 case IEEE80211_SMPS_STATIC
:
1027 case IEEE80211_SMPS_DYNAMIC
:
1028 return IWL_NUM_IDLE_CHAINS_SINGLE
;
1029 case IEEE80211_SMPS_OFF
:
1032 WARN(1, "invalid SMPS mode %d",
1033 priv
->current_ht_config
.smps
);
1038 /* up to 4 chains */
1039 static u8
iwl_count_chain_bitmap(u32 chain_bitmap
)
1042 res
= (chain_bitmap
& BIT(0)) >> 0;
1043 res
+= (chain_bitmap
& BIT(1)) >> 1;
1044 res
+= (chain_bitmap
& BIT(2)) >> 2;
1045 res
+= (chain_bitmap
& BIT(3)) >> 3;
1050 * iwl_is_monitor_mode - Determine if interface in monitor mode
1052 * priv->iw_mode is set in add_interface, but add_interface is
1053 * never called for monitor mode. The only way mac80211 informs us about
1054 * monitor mode is through configuring filters (call to configure_filter).
1056 bool iwl_is_monitor_mode(struct iwl_priv
*priv
)
1058 return !!(priv
->staging_rxon
.filter_flags
& RXON_FILTER_PROMISC_MSK
);
1060 EXPORT_SYMBOL(iwl_is_monitor_mode
);
1063 * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
1065 * Selects how many and which Rx receivers/antennas/chains to use.
1066 * This should not be used for scan command ... it puts data in wrong place.
1068 void iwl_set_rxon_chain(struct iwl_priv
*priv
)
1070 bool is_single
= is_single_rx_stream(priv
);
1071 bool is_cam
= !test_bit(STATUS_POWER_PMI
, &priv
->status
);
1072 u8 idle_rx_cnt
, active_rx_cnt
, valid_rx_cnt
;
1076 /* Tell uCode which antennas are actually connected.
1077 * Before first association, we assume all antennas are connected.
1078 * Just after first association, iwl_chain_noise_calibration()
1079 * checks which antennas actually *are* connected. */
1080 if (priv
->chain_noise_data
.active_chains
)
1081 active_chains
= priv
->chain_noise_data
.active_chains
;
1083 active_chains
= priv
->hw_params
.valid_rx_ant
;
1085 rx_chain
= active_chains
<< RXON_RX_CHAIN_VALID_POS
;
1087 /* How many receivers should we use? */
1088 active_rx_cnt
= iwl_get_active_rx_chain_count(priv
);
1089 idle_rx_cnt
= iwl_get_idle_rx_chain_count(priv
, active_rx_cnt
);
1092 /* correct rx chain count according hw settings
1093 * and chain noise calibration
1095 valid_rx_cnt
= iwl_count_chain_bitmap(active_chains
);
1096 if (valid_rx_cnt
< active_rx_cnt
)
1097 active_rx_cnt
= valid_rx_cnt
;
1099 if (valid_rx_cnt
< idle_rx_cnt
)
1100 idle_rx_cnt
= valid_rx_cnt
;
1102 rx_chain
|= active_rx_cnt
<< RXON_RX_CHAIN_MIMO_CNT_POS
;
1103 rx_chain
|= idle_rx_cnt
<< RXON_RX_CHAIN_CNT_POS
;
1105 /* copied from 'iwl_bg_request_scan()' */
1106 /* Force use of chains B and C (0x6) for Rx for 4965
1107 * Avoid A (0x1) because of its off-channel reception on A-band.
1108 * MIMO is not used here, but value is required */
1109 if (iwl_is_monitor_mode(priv
) &&
1110 !(priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) &&
1111 ((priv
->hw_rev
& CSR_HW_REV_TYPE_MSK
) == CSR_HW_REV_TYPE_4965
)) {
1112 rx_chain
= ANT_ABC
<< RXON_RX_CHAIN_VALID_POS
;
1113 rx_chain
|= ANT_BC
<< RXON_RX_CHAIN_FORCE_SEL_POS
;
1114 rx_chain
|= ANT_ABC
<< RXON_RX_CHAIN_FORCE_MIMO_SEL_POS
;
1115 rx_chain
|= 0x1 << RXON_RX_CHAIN_DRIVER_FORCE_POS
;
1118 priv
->staging_rxon
.rx_chain
= cpu_to_le16(rx_chain
);
1120 if (!is_single
&& (active_rx_cnt
>= IWL_NUM_RX_CHAINS_SINGLE
) && is_cam
)
1121 priv
->staging_rxon
.rx_chain
|= RXON_RX_CHAIN_MIMO_FORCE_MSK
;
1123 priv
->staging_rxon
.rx_chain
&= ~RXON_RX_CHAIN_MIMO_FORCE_MSK
;
1125 IWL_DEBUG_ASSOC(priv
, "rx_chain=0x%X active=%d idle=%d\n",
1126 priv
->staging_rxon
.rx_chain
,
1127 active_rx_cnt
, idle_rx_cnt
);
1129 WARN_ON(active_rx_cnt
== 0 || idle_rx_cnt
== 0 ||
1130 active_rx_cnt
< idle_rx_cnt
);
1132 EXPORT_SYMBOL(iwl_set_rxon_chain
);
1135 * iwl_set_rxon_channel - Set the phymode and channel values in staging RXON
1136 * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
1137 * @channel: Any channel valid for the requested phymode
1139 * In addition to setting the staging RXON, priv->phymode is also set.
1141 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
1142 * in the staging RXON flag structure based on the phymode
1144 int iwl_set_rxon_channel(struct iwl_priv
*priv
, struct ieee80211_channel
*ch
)
1146 enum ieee80211_band band
= ch
->band
;
1147 u16 channel
= ieee80211_frequency_to_channel(ch
->center_freq
);
1149 if (!iwl_get_channel_info(priv
, band
, channel
)) {
1150 IWL_DEBUG_INFO(priv
, "Could not set channel to %d [%d]\n",
1155 if ((le16_to_cpu(priv
->staging_rxon
.channel
) == channel
) &&
1156 (priv
->band
== band
))
1159 priv
->staging_rxon
.channel
= cpu_to_le16(channel
);
1160 if (band
== IEEE80211_BAND_5GHZ
)
1161 priv
->staging_rxon
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
1163 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
1167 IWL_DEBUG_INFO(priv
, "Staging channel set to %d [%d]\n", channel
, band
);
1171 EXPORT_SYMBOL(iwl_set_rxon_channel
);
1173 void iwl_set_flags_for_band(struct iwl_priv
*priv
,
1174 enum ieee80211_band band
)
1176 if (band
== IEEE80211_BAND_5GHZ
) {
1177 priv
->staging_rxon
.flags
&=
1178 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
1179 | RXON_FLG_CCK_MSK
);
1180 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1182 /* Copied from iwl_post_associate() */
1183 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
1184 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1186 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1188 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
1189 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1191 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
1192 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
1193 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
1198 * initialize rxon structure with default values from eeprom
1200 void iwl_connection_init_rx_config(struct iwl_priv
*priv
, int mode
)
1202 const struct iwl_channel_info
*ch_info
;
1204 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
1207 case NL80211_IFTYPE_AP
:
1208 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
1211 case NL80211_IFTYPE_STATION
:
1212 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
1213 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
1216 case NL80211_IFTYPE_ADHOC
:
1217 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
1218 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
1219 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
1220 RXON_FILTER_ACCEPT_GRP_MSK
;
1224 IWL_ERR(priv
, "Unsupported interface type %d\n", mode
);
1229 /* TODO: Figure out when short_preamble would be set and cache from
1231 if (!hw_to_local(priv
->hw
)->short_preamble
)
1232 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
1234 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
1237 ch_info
= iwl_get_channel_info(priv
, priv
->band
,
1238 le16_to_cpu(priv
->active_rxon
.channel
));
1241 ch_info
= &priv
->channel_info
[0];
1244 * in some case A channels are all non IBSS
1245 * in this case force B/G channel
1247 if ((priv
->iw_mode
== NL80211_IFTYPE_ADHOC
) &&
1248 !(is_channel_ibss(ch_info
)))
1249 ch_info
= &priv
->channel_info
[0];
1251 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
1252 priv
->band
= ch_info
->band
;
1254 iwl_set_flags_for_band(priv
, priv
->band
);
1256 priv
->staging_rxon
.ofdm_basic_rates
=
1257 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
1258 priv
->staging_rxon
.cck_basic_rates
=
1259 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
1261 /* clear both MIX and PURE40 mode flag */
1262 priv
->staging_rxon
.flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED
|
1263 RXON_FLG_CHANNEL_MODE_PURE_40
);
1264 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
1265 memcpy(priv
->staging_rxon
.wlap_bssid_addr
, priv
->mac_addr
, ETH_ALEN
);
1266 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
= 0xff;
1267 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
= 0xff;
1268 priv
->staging_rxon
.ofdm_ht_triple_stream_basic_rates
= 0xff;
1270 EXPORT_SYMBOL(iwl_connection_init_rx_config
);
1272 static void iwl_set_rate(struct iwl_priv
*priv
)
1274 const struct ieee80211_supported_band
*hw
= NULL
;
1275 struct ieee80211_rate
*rate
;
1278 hw
= iwl_get_hw_mode(priv
, priv
->band
);
1280 IWL_ERR(priv
, "Failed to set rate: unable to get hw mode\n");
1284 priv
->active_rate
= 0;
1285 priv
->active_rate_basic
= 0;
1287 for (i
= 0; i
< hw
->n_bitrates
; i
++) {
1288 rate
= &(hw
->bitrates
[i
]);
1289 if (rate
->hw_value
< IWL_RATE_COUNT_LEGACY
)
1290 priv
->active_rate
|= (1 << rate
->hw_value
);
1293 IWL_DEBUG_RATE(priv
, "Set active_rate = %0x, active_rate_basic = %0x\n",
1294 priv
->active_rate
, priv
->active_rate_basic
);
1297 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
1298 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
1301 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
1302 priv
->staging_rxon
.cck_basic_rates
=
1303 ((priv
->active_rate_basic
&
1304 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
1306 priv
->staging_rxon
.cck_basic_rates
=
1307 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
1309 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
1310 priv
->staging_rxon
.ofdm_basic_rates
=
1311 ((priv
->active_rate_basic
&
1312 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
1313 IWL_FIRST_OFDM_RATE
) & 0xFF;
1315 priv
->staging_rxon
.ofdm_basic_rates
=
1316 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
1319 void iwl_rx_csa(struct iwl_priv
*priv
, struct iwl_rx_mem_buffer
*rxb
)
1321 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
1322 struct iwl_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
1323 struct iwl_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
1325 if (priv
->switch_rxon
.switch_in_progress
) {
1326 if (!le32_to_cpu(csa
->status
) &&
1327 (csa
->channel
== priv
->switch_rxon
.channel
)) {
1328 rxon
->channel
= csa
->channel
;
1329 priv
->staging_rxon
.channel
= csa
->channel
;
1330 IWL_DEBUG_11H(priv
, "CSA notif: channel %d\n",
1331 le16_to_cpu(csa
->channel
));
1333 IWL_ERR(priv
, "CSA notif (fail) : channel %d\n",
1334 le16_to_cpu(csa
->channel
));
1336 priv
->switch_rxon
.switch_in_progress
= false;
1339 EXPORT_SYMBOL(iwl_rx_csa
);
1341 #ifdef CONFIG_IWLWIFI_DEBUG
1342 void iwl_print_rx_config_cmd(struct iwl_priv
*priv
)
1344 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
1346 IWL_DEBUG_RADIO(priv
, "RX CONFIG:\n");
1347 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
1348 IWL_DEBUG_RADIO(priv
, "u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
1349 IWL_DEBUG_RADIO(priv
, "u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
1350 IWL_DEBUG_RADIO(priv
, "u32 filter_flags: 0x%08x\n",
1351 le32_to_cpu(rxon
->filter_flags
));
1352 IWL_DEBUG_RADIO(priv
, "u8 dev_type: 0x%x\n", rxon
->dev_type
);
1353 IWL_DEBUG_RADIO(priv
, "u8 ofdm_basic_rates: 0x%02x\n",
1354 rxon
->ofdm_basic_rates
);
1355 IWL_DEBUG_RADIO(priv
, "u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
1356 IWL_DEBUG_RADIO(priv
, "u8[6] node_addr: %pM\n", rxon
->node_addr
);
1357 IWL_DEBUG_RADIO(priv
, "u8[6] bssid_addr: %pM\n", rxon
->bssid_addr
);
1358 IWL_DEBUG_RADIO(priv
, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
1360 EXPORT_SYMBOL(iwl_print_rx_config_cmd
);
1363 * iwl_irq_handle_error - called for HW or SW error interrupt from card
1365 void iwl_irq_handle_error(struct iwl_priv
*priv
)
1367 /* Set the FW error flag -- cleared on iwl_down */
1368 set_bit(STATUS_FW_ERROR
, &priv
->status
);
1370 /* Cancel currently queued command. */
1371 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
1373 priv
->cfg
->ops
->lib
->dump_nic_error_log(priv
);
1374 if (priv
->cfg
->ops
->lib
->dump_csr
)
1375 priv
->cfg
->ops
->lib
->dump_csr(priv
);
1376 if (priv
->cfg
->ops
->lib
->dump_fh
)
1377 priv
->cfg
->ops
->lib
->dump_fh(priv
, NULL
, false);
1378 priv
->cfg
->ops
->lib
->dump_nic_event_log(priv
, false, NULL
, false);
1379 #ifdef CONFIG_IWLWIFI_DEBUG
1380 if (iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
)
1381 iwl_print_rx_config_cmd(priv
);
1384 wake_up_interruptible(&priv
->wait_command_queue
);
1386 /* Keep the restart process from trying to send host
1387 * commands by clearing the INIT status bit */
1388 clear_bit(STATUS_READY
, &priv
->status
);
1390 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
1391 IWL_DEBUG(priv
, IWL_DL_FW_ERRORS
,
1392 "Restarting adapter due to uCode error.\n");
1394 if (priv
->cfg
->mod_params
->restart_fw
)
1395 queue_work(priv
->workqueue
, &priv
->restart
);
1398 EXPORT_SYMBOL(iwl_irq_handle_error
);
1400 int iwl_apm_stop_master(struct iwl_priv
*priv
)
1404 /* stop device's busmaster DMA activity */
1405 iwl_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_STOP_MASTER
);
1407 ret
= iwl_poll_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_MASTER_DISABLED
,
1408 CSR_RESET_REG_FLAG_MASTER_DISABLED
, 100);
1410 IWL_WARN(priv
, "Master Disable Timed Out, 100 usec\n");
1412 IWL_DEBUG_INFO(priv
, "stop master\n");
1416 EXPORT_SYMBOL(iwl_apm_stop_master
);
1418 void iwl_apm_stop(struct iwl_priv
*priv
)
1420 IWL_DEBUG_INFO(priv
, "Stop card, put in low power state\n");
1422 /* Stop device's DMA activity */
1423 iwl_apm_stop_master(priv
);
1425 /* Reset the entire device */
1426 iwl_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
1431 * Clear "initialization complete" bit to move adapter from
1432 * D0A* (powered-up Active) --> D0U* (Uninitialized) state.
1434 iwl_clear_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
1436 EXPORT_SYMBOL(iwl_apm_stop
);
1440 * Start up NIC's basic functionality after it has been reset
1441 * (e.g. after platform boot, or shutdown via iwl_apm_stop())
1442 * NOTE: This does not load uCode nor start the embedded processor
1444 int iwl_apm_init(struct iwl_priv
*priv
)
1449 IWL_DEBUG_INFO(priv
, "Init card's basic functions\n");
1452 * Use "set_bit" below rather than "write", to preserve any hardware
1453 * bits already set by default after reset.
1456 /* Disable L0S exit timer (platform NMI Work/Around) */
1457 iwl_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
1458 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER
);
1461 * Disable L0s without affecting L1;
1462 * don't wait for ICH L0s (ICH bug W/A)
1464 iwl_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
1465 CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX
);
1467 /* Set FH wait threshold to maximum (HW error during stress W/A) */
1468 iwl_set_bit(priv
, CSR_DBG_HPET_MEM_REG
, CSR_DBG_HPET_MEM_REG_VAL
);
1471 * Enable HAP INTA (interrupt from management bus) to
1472 * wake device's PCI Express link L1a -> L0s
1473 * NOTE: This is no-op for 3945 (non-existant bit)
1475 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
1476 CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A
);
1479 * HW bug W/A for instability in PCIe bus L0->L0S->L1 transition.
1480 * Check if BIOS (or OS) enabled L1-ASPM on this device.
1481 * If so (likely), disable L0S, so device moves directly L0->L1;
1482 * costs negligible amount of power savings.
1483 * If not (unlikely), enable L0S, so there is at least some
1484 * power savings, even without L1.
1486 if (priv
->cfg
->set_l0s
) {
1487 lctl
= iwl_pcie_link_ctl(priv
);
1488 if ((lctl
& PCI_CFG_LINK_CTRL_VAL_L1_EN
) ==
1489 PCI_CFG_LINK_CTRL_VAL_L1_EN
) {
1490 /* L1-ASPM enabled; disable(!) L0S */
1491 iwl_set_bit(priv
, CSR_GIO_REG
,
1492 CSR_GIO_REG_VAL_L0S_ENABLED
);
1493 IWL_DEBUG_POWER(priv
, "L1 Enabled; Disabling L0S\n");
1495 /* L1-ASPM disabled; enable(!) L0S */
1496 iwl_clear_bit(priv
, CSR_GIO_REG
,
1497 CSR_GIO_REG_VAL_L0S_ENABLED
);
1498 IWL_DEBUG_POWER(priv
, "L1 Disabled; Enabling L0S\n");
1502 /* Configure analog phase-lock-loop before activating to D0A */
1503 if (priv
->cfg
->pll_cfg_val
)
1504 iwl_set_bit(priv
, CSR_ANA_PLL_CFG
, priv
->cfg
->pll_cfg_val
);
1507 * Set "initialization complete" bit to move adapter from
1508 * D0U* --> D0A* (powered-up active) state.
1510 iwl_set_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
1513 * Wait for clock stabilization; once stabilized, access to
1514 * device-internal resources is supported, e.g. iwl_write_prph()
1515 * and accesses to uCode SRAM.
1517 ret
= iwl_poll_bit(priv
, CSR_GP_CNTRL
,
1518 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
,
1519 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
, 25000);
1521 IWL_DEBUG_INFO(priv
, "Failed to init the card\n");
1526 * Enable DMA and BSM (if used) clocks, wait for them to stabilize.
1527 * BSM (Boostrap State Machine) is only in 3945 and 4965;
1528 * later devices (i.e. 5000 and later) have non-volatile SRAM,
1529 * and don't need BSM to restore data after power-saving sleep.
1531 * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits
1532 * do not disable clocks. This preserves any hardware bits already
1533 * set by default in "CLK_CTRL_REG" after reset.
1535 if (priv
->cfg
->use_bsm
)
1536 iwl_write_prph(priv
, APMG_CLK_EN_REG
,
1537 APMG_CLK_VAL_DMA_CLK_RQT
| APMG_CLK_VAL_BSM_CLK_RQT
);
1539 iwl_write_prph(priv
, APMG_CLK_EN_REG
,
1540 APMG_CLK_VAL_DMA_CLK_RQT
);
1543 /* Disable L1-Active */
1544 iwl_set_bits_prph(priv
, APMG_PCIDEV_STT_REG
,
1545 APMG_PCIDEV_STT_VAL_L1_ACT_DIS
);
1550 EXPORT_SYMBOL(iwl_apm_init
);
1554 void iwl_configure_filter(struct ieee80211_hw
*hw
,
1555 unsigned int changed_flags
,
1556 unsigned int *total_flags
,
1559 struct iwl_priv
*priv
= hw
->priv
;
1560 __le32
*filter_flags
= &priv
->staging_rxon
.filter_flags
;
1562 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
1563 changed_flags
, *total_flags
);
1565 if (changed_flags
& (FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
)) {
1566 if (*total_flags
& (FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
))
1567 *filter_flags
|= RXON_FILTER_PROMISC_MSK
;
1569 *filter_flags
&= ~RXON_FILTER_PROMISC_MSK
;
1571 if (changed_flags
& FIF_ALLMULTI
) {
1572 if (*total_flags
& FIF_ALLMULTI
)
1573 *filter_flags
|= RXON_FILTER_ACCEPT_GRP_MSK
;
1575 *filter_flags
&= ~RXON_FILTER_ACCEPT_GRP_MSK
;
1577 if (changed_flags
& FIF_CONTROL
) {
1578 if (*total_flags
& FIF_CONTROL
)
1579 *filter_flags
|= RXON_FILTER_CTL2HOST_MSK
;
1581 *filter_flags
&= ~RXON_FILTER_CTL2HOST_MSK
;
1583 if (changed_flags
& FIF_BCN_PRBRESP_PROMISC
) {
1584 if (*total_flags
& FIF_BCN_PRBRESP_PROMISC
)
1585 *filter_flags
|= RXON_FILTER_BCON_AWARE_MSK
;
1587 *filter_flags
&= ~RXON_FILTER_BCON_AWARE_MSK
;
1590 /* We avoid iwl_commit_rxon here to commit the new filter flags
1591 * since mac80211 will call ieee80211_hw_config immediately.
1592 * (mc_list is not supported at this time). Otherwise, we need to
1593 * queue a background iwl_commit_rxon work.
1596 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
1597 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
1599 EXPORT_SYMBOL(iwl_configure_filter
);
1601 int iwl_set_hw_params(struct iwl_priv
*priv
)
1603 priv
->hw_params
.max_rxq_size
= RX_QUEUE_SIZE
;
1604 priv
->hw_params
.max_rxq_log
= RX_QUEUE_SIZE_LOG
;
1605 if (priv
->cfg
->mod_params
->amsdu_size_8K
)
1606 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_8K
);
1608 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_4K
);
1610 priv
->hw_params
.max_beacon_itrvl
= IWL_MAX_UCODE_BEACON_INTERVAL
;
1612 if (priv
->cfg
->mod_params
->disable_11n
)
1613 priv
->cfg
->sku
&= ~IWL_SKU_N
;
1615 /* Device-specific setup */
1616 return priv
->cfg
->ops
->lib
->set_hw_params(priv
);
1618 EXPORT_SYMBOL(iwl_set_hw_params
);
1620 int iwl_set_tx_power(struct iwl_priv
*priv
, s8 tx_power
, bool force
)
1623 s8 prev_tx_power
= priv
->tx_power_user_lmt
;
1625 if (tx_power
< IWL_TX_POWER_TARGET_POWER_MIN
) {
1626 IWL_WARN(priv
, "Requested user TXPOWER %d below lower limit %d.\n",
1628 IWL_TX_POWER_TARGET_POWER_MIN
);
1632 if (tx_power
> priv
->tx_power_device_lmt
) {
1634 "Requested user TXPOWER %d above upper limit %d.\n",
1635 tx_power
, priv
->tx_power_device_lmt
);
1639 if (priv
->tx_power_user_lmt
!= tx_power
)
1642 /* if nic is not up don't send command */
1643 if (iwl_is_ready_rf(priv
)) {
1644 priv
->tx_power_user_lmt
= tx_power
;
1645 if (force
&& priv
->cfg
->ops
->lib
->send_tx_power
)
1646 ret
= priv
->cfg
->ops
->lib
->send_tx_power(priv
);
1647 else if (!priv
->cfg
->ops
->lib
->send_tx_power
)
1650 * if fail to set tx_power, restore the orig. tx power
1653 priv
->tx_power_user_lmt
= prev_tx_power
;
1657 * Even this is an async host command, the command
1658 * will always report success from uCode
1659 * So once driver can placing the command into the queue
1660 * successfully, driver can use priv->tx_power_user_lmt
1661 * to reflect the current tx power
1665 EXPORT_SYMBOL(iwl_set_tx_power
);
1667 #define ICT_COUNT (PAGE_SIZE/sizeof(u32))
1669 /* Free dram table */
1670 void iwl_free_isr_ict(struct iwl_priv
*priv
)
1672 if (priv
->ict_tbl_vir
) {
1673 pci_free_consistent(priv
->pci_dev
, (sizeof(u32
) * ICT_COUNT
) +
1674 PAGE_SIZE
, priv
->ict_tbl_vir
,
1676 priv
->ict_tbl_vir
= NULL
;
1679 EXPORT_SYMBOL(iwl_free_isr_ict
);
1682 /* allocate dram shared table it is a PAGE_SIZE aligned
1683 * also reset all data related to ICT table interrupt.
1685 int iwl_alloc_isr_ict(struct iwl_priv
*priv
)
1688 if (priv
->cfg
->use_isr_legacy
)
1690 /* allocate shrared data table */
1691 priv
->ict_tbl_vir
= pci_alloc_consistent(priv
->pci_dev
, (sizeof(u32
) *
1692 ICT_COUNT
) + PAGE_SIZE
,
1693 &priv
->ict_tbl_dma
);
1694 if (!priv
->ict_tbl_vir
)
1697 /* align table to PAGE_SIZE boundry */
1698 priv
->aligned_ict_tbl_dma
= ALIGN(priv
->ict_tbl_dma
, PAGE_SIZE
);
1700 IWL_DEBUG_ISR(priv
, "ict dma addr %Lx dma aligned %Lx diff %d\n",
1701 (unsigned long long)priv
->ict_tbl_dma
,
1702 (unsigned long long)priv
->aligned_ict_tbl_dma
,
1703 (int)(priv
->aligned_ict_tbl_dma
- priv
->ict_tbl_dma
));
1705 priv
->ict_tbl
= priv
->ict_tbl_vir
+
1706 (priv
->aligned_ict_tbl_dma
- priv
->ict_tbl_dma
);
1708 IWL_DEBUG_ISR(priv
, "ict vir addr %p vir aligned %p diff %d\n",
1709 priv
->ict_tbl
, priv
->ict_tbl_vir
,
1710 (int)(priv
->aligned_ict_tbl_dma
- priv
->ict_tbl_dma
));
1712 /* reset table and index to all 0 */
1713 memset(priv
->ict_tbl_vir
,0, (sizeof(u32
) * ICT_COUNT
) + PAGE_SIZE
);
1714 priv
->ict_index
= 0;
1716 /* add periodic RX interrupt */
1717 priv
->inta_mask
|= CSR_INT_BIT_RX_PERIODIC
;
1720 EXPORT_SYMBOL(iwl_alloc_isr_ict
);
1722 /* Device is going up inform it about using ICT interrupt table,
1723 * also we need to tell the driver to start using ICT interrupt.
1725 int iwl_reset_ict(struct iwl_priv
*priv
)
1728 unsigned long flags
;
1730 if (!priv
->ict_tbl_vir
)
1733 spin_lock_irqsave(&priv
->lock
, flags
);
1734 iwl_disable_interrupts(priv
);
1736 memset(&priv
->ict_tbl
[0], 0, sizeof(u32
) * ICT_COUNT
);
1738 val
= priv
->aligned_ict_tbl_dma
>> PAGE_SHIFT
;
1740 val
|= CSR_DRAM_INT_TBL_ENABLE
;
1741 val
|= CSR_DRAM_INIT_TBL_WRAP_CHECK
;
1743 IWL_DEBUG_ISR(priv
, "CSR_DRAM_INT_TBL_REG =0x%X "
1744 "aligned dma address %Lx\n",
1745 val
, (unsigned long long)priv
->aligned_ict_tbl_dma
);
1747 iwl_write32(priv
, CSR_DRAM_INT_TBL_REG
, val
);
1748 priv
->use_ict
= true;
1749 priv
->ict_index
= 0;
1750 iwl_write32(priv
, CSR_INT
, priv
->inta_mask
);
1751 iwl_enable_interrupts(priv
);
1752 spin_unlock_irqrestore(&priv
->lock
, flags
);
1756 EXPORT_SYMBOL(iwl_reset_ict
);
1758 /* Device is going down disable ict interrupt usage */
1759 void iwl_disable_ict(struct iwl_priv
*priv
)
1761 unsigned long flags
;
1763 spin_lock_irqsave(&priv
->lock
, flags
);
1764 priv
->use_ict
= false;
1765 spin_unlock_irqrestore(&priv
->lock
, flags
);
1767 EXPORT_SYMBOL(iwl_disable_ict
);
1769 /* interrupt handler using ict table, with this interrupt driver will
1770 * stop using INTA register to get device's interrupt, reading this register
1771 * is expensive, device will write interrupts in ICT dram table, increment
1772 * index then will fire interrupt to driver, driver will OR all ICT table
1773 * entries from current index up to table entry with 0 value. the result is
1774 * the interrupt we need to service, driver will set the entries back to 0 and
1777 irqreturn_t
iwl_isr_ict(int irq
, void *data
)
1779 struct iwl_priv
*priv
= data
;
1780 u32 inta
, inta_mask
;
1786 /* dram interrupt table not set yet,
1787 * use legacy interrupt.
1790 return iwl_isr(irq
, data
);
1792 spin_lock(&priv
->lock
);
1794 /* Disable (but don't clear!) interrupts here to avoid
1795 * back-to-back ISRs and sporadic interrupts from our NIC.
1796 * If we have something to service, the tasklet will re-enable ints.
1797 * If we *don't* have something, we'll re-enable before leaving here.
1799 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
1800 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
1803 /* Ignore interrupt if there's nothing in NIC to service.
1804 * This may be due to IRQ shared with another device,
1805 * or due to sporadic interrupts thrown from our NIC. */
1806 if (!priv
->ict_tbl
[priv
->ict_index
]) {
1807 IWL_DEBUG_ISR(priv
, "Ignore interrupt, inta == 0\n");
1811 /* read all entries that not 0 start with ict_index */
1812 while (priv
->ict_tbl
[priv
->ict_index
]) {
1814 val
|= le32_to_cpu(priv
->ict_tbl
[priv
->ict_index
]);
1815 IWL_DEBUG_ISR(priv
, "ICT index %d value 0x%08X\n",
1817 le32_to_cpu(priv
->ict_tbl
[priv
->ict_index
]));
1818 priv
->ict_tbl
[priv
->ict_index
] = 0;
1819 priv
->ict_index
= iwl_queue_inc_wrap(priv
->ict_index
,
1824 /* We should not get this value, just ignore it. */
1825 if (val
== 0xffffffff)
1829 * this is a w/a for a h/w bug. the h/w bug may cause the Rx bit
1830 * (bit 15 before shifting it to 31) to clear when using interrupt
1831 * coalescing. fortunately, bits 18 and 19 stay set when this happens
1832 * so we use them to decide on the real state of the Rx bit.
1833 * In order words, bit 15 is set if bit 18 or bit 19 are set.
1838 inta
= (0xff & val
) | ((0xff00 & val
) << 16);
1839 IWL_DEBUG_ISR(priv
, "ISR inta 0x%08x, enabled 0x%08x ict 0x%08x\n",
1840 inta
, inta_mask
, val
);
1842 inta
&= priv
->inta_mask
;
1845 /* iwl_irq_tasklet() will service interrupts and re-enable them */
1847 tasklet_schedule(&priv
->irq_tasklet
);
1848 else if (test_bit(STATUS_INT_ENABLED
, &priv
->status
) && !priv
->inta
) {
1849 /* Allow interrupt if was disabled by this handler and
1850 * no tasklet was schedules, We should not enable interrupt,
1851 * tasklet will enable it.
1853 iwl_enable_interrupts(priv
);
1856 spin_unlock(&priv
->lock
);
1860 /* re-enable interrupts here since we don't have anything to service.
1861 * only Re-enable if disabled by irq.
1863 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
) && !priv
->inta
)
1864 iwl_enable_interrupts(priv
);
1866 spin_unlock(&priv
->lock
);
1869 EXPORT_SYMBOL(iwl_isr_ict
);
1872 static irqreturn_t
iwl_isr(int irq
, void *data
)
1874 struct iwl_priv
*priv
= data
;
1875 u32 inta
, inta_mask
;
1876 #ifdef CONFIG_IWLWIFI_DEBUG
1882 spin_lock(&priv
->lock
);
1884 /* Disable (but don't clear!) interrupts here to avoid
1885 * back-to-back ISRs and sporadic interrupts from our NIC.
1886 * If we have something to service, the tasklet will re-enable ints.
1887 * If we *don't* have something, we'll re-enable before leaving here. */
1888 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
1889 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
1891 /* Discover which interrupts are active/pending */
1892 inta
= iwl_read32(priv
, CSR_INT
);
1894 /* Ignore interrupt if there's nothing in NIC to service.
1895 * This may be due to IRQ shared with another device,
1896 * or due to sporadic interrupts thrown from our NIC. */
1898 IWL_DEBUG_ISR(priv
, "Ignore interrupt, inta == 0\n");
1902 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
1903 /* Hardware disappeared. It might have already raised
1905 IWL_WARN(priv
, "HARDWARE GONE?? INTA == 0x%08x\n", inta
);
1909 #ifdef CONFIG_IWLWIFI_DEBUG
1910 if (iwl_get_debug_level(priv
) & (IWL_DL_ISR
)) {
1911 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1912 IWL_DEBUG_ISR(priv
, "ISR inta 0x%08x, enabled 0x%08x, "
1913 "fh 0x%08x\n", inta
, inta_mask
, inta_fh
);
1918 /* iwl_irq_tasklet() will service interrupts and re-enable them */
1920 tasklet_schedule(&priv
->irq_tasklet
);
1921 else if (test_bit(STATUS_INT_ENABLED
, &priv
->status
) && !priv
->inta
)
1922 iwl_enable_interrupts(priv
);
1925 spin_unlock(&priv
->lock
);
1929 /* re-enable interrupts here since we don't have anything to service. */
1930 /* only Re-enable if diabled by irq and no schedules tasklet. */
1931 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
) && !priv
->inta
)
1932 iwl_enable_interrupts(priv
);
1934 spin_unlock(&priv
->lock
);
1938 irqreturn_t
iwl_isr_legacy(int irq
, void *data
)
1940 struct iwl_priv
*priv
= data
;
1941 u32 inta
, inta_mask
;
1946 spin_lock(&priv
->lock
);
1948 /* Disable (but don't clear!) interrupts here to avoid
1949 * back-to-back ISRs and sporadic interrupts from our NIC.
1950 * If we have something to service, the tasklet will re-enable ints.
1951 * If we *don't* have something, we'll re-enable before leaving here. */
1952 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
1953 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
1955 /* Discover which interrupts are active/pending */
1956 inta
= iwl_read32(priv
, CSR_INT
);
1957 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1959 /* Ignore interrupt if there's nothing in NIC to service.
1960 * This may be due to IRQ shared with another device,
1961 * or due to sporadic interrupts thrown from our NIC. */
1962 if (!inta
&& !inta_fh
) {
1963 IWL_DEBUG_ISR(priv
, "Ignore interrupt, inta == 0, inta_fh == 0\n");
1967 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
1968 /* Hardware disappeared. It might have already raised
1970 IWL_WARN(priv
, "HARDWARE GONE?? INTA == 0x%08x\n", inta
);
1974 IWL_DEBUG_ISR(priv
, "ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1975 inta
, inta_mask
, inta_fh
);
1977 inta
&= ~CSR_INT_BIT_SCD
;
1979 /* iwl_irq_tasklet() will service interrupts and re-enable them */
1980 if (likely(inta
|| inta_fh
))
1981 tasklet_schedule(&priv
->irq_tasklet
);
1984 spin_unlock(&priv
->lock
);
1988 /* re-enable interrupts here since we don't have anything to service. */
1989 /* only Re-enable if diabled by irq */
1990 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
1991 iwl_enable_interrupts(priv
);
1992 spin_unlock(&priv
->lock
);
1995 EXPORT_SYMBOL(iwl_isr_legacy
);
1997 int iwl_send_bt_config(struct iwl_priv
*priv
)
1999 struct iwl_bt_cmd bt_cmd
= {
2000 .lead_time
= BT_LEAD_TIME_DEF
,
2001 .max_kill
= BT_MAX_KILL_DEF
,
2006 if (!bt_coex_active
)
2007 bt_cmd
.flags
= BT_COEX_DISABLE
;
2009 bt_cmd
.flags
= BT_COEX_ENABLE
;
2011 IWL_DEBUG_INFO(priv
, "BT coex %s\n",
2012 (bt_cmd
.flags
== BT_COEX_DISABLE
) ? "disable" : "active");
2014 return iwl_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
2015 sizeof(struct iwl_bt_cmd
), &bt_cmd
);
2017 EXPORT_SYMBOL(iwl_send_bt_config
);
2019 int iwl_send_statistics_request(struct iwl_priv
*priv
, u8 flags
, bool clear
)
2021 struct iwl_statistics_cmd statistics_cmd
= {
2022 .configuration_flags
=
2023 clear
? IWL_STATS_CONF_CLEAR_STATS
: 0,
2026 if (flags
& CMD_ASYNC
)
2027 return iwl_send_cmd_pdu_async(priv
, REPLY_STATISTICS_CMD
,
2028 sizeof(struct iwl_statistics_cmd
),
2029 &statistics_cmd
, NULL
);
2031 return iwl_send_cmd_pdu(priv
, REPLY_STATISTICS_CMD
,
2032 sizeof(struct iwl_statistics_cmd
),
2035 EXPORT_SYMBOL(iwl_send_statistics_request
);
2038 * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
2039 * using sample data 100 bytes apart. If these sample points are good,
2040 * it's a pretty good bet that everything between them is good, too.
2042 static int iwlcore_verify_inst_sparse(struct iwl_priv
*priv
, __le32
*image
, u32 len
)
2049 IWL_DEBUG_INFO(priv
, "ucode inst image size is %u\n", len
);
2051 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
2052 /* read data comes through single port, auto-incr addr */
2053 /* NOTE: Use the debugless read so we don't flood kernel log
2054 * if IWL_DL_IO is set */
2055 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
2056 i
+ IWL49_RTC_INST_LOWER_BOUND
);
2057 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
2058 if (val
!= le32_to_cpu(*image
)) {
2070 * iwlcore_verify_inst_full - verify runtime uCode image in card vs. host,
2071 * looking at all data.
2073 static int iwl_verify_inst_full(struct iwl_priv
*priv
, __le32
*image
,
2081 IWL_DEBUG_INFO(priv
, "ucode inst image size is %u\n", len
);
2083 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
2084 IWL49_RTC_INST_LOWER_BOUND
);
2087 for (; len
> 0; len
-= sizeof(u32
), image
++) {
2088 /* read data comes through single port, auto-incr addr */
2089 /* NOTE: Use the debugless read so we don't flood kernel log
2090 * if IWL_DL_IO is set */
2091 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
2092 if (val
!= le32_to_cpu(*image
)) {
2093 IWL_ERR(priv
, "uCode INST section is invalid at "
2094 "offset 0x%x, is 0x%x, s/b 0x%x\n",
2095 save_len
- len
, val
, le32_to_cpu(*image
));
2104 IWL_DEBUG_INFO(priv
,
2105 "ucode image in INSTRUCTION memory is good\n");
2111 * iwl_verify_ucode - determine which instruction image is in SRAM,
2112 * and verify its contents
2114 int iwl_verify_ucode(struct iwl_priv
*priv
)
2121 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
2122 len
= priv
->ucode_boot
.len
;
2123 ret
= iwlcore_verify_inst_sparse(priv
, image
, len
);
2125 IWL_DEBUG_INFO(priv
, "Bootstrap uCode is good in inst SRAM\n");
2129 /* Try initialize */
2130 image
= (__le32
*)priv
->ucode_init
.v_addr
;
2131 len
= priv
->ucode_init
.len
;
2132 ret
= iwlcore_verify_inst_sparse(priv
, image
, len
);
2134 IWL_DEBUG_INFO(priv
, "Initialize uCode is good in inst SRAM\n");
2138 /* Try runtime/protocol */
2139 image
= (__le32
*)priv
->ucode_code
.v_addr
;
2140 len
= priv
->ucode_code
.len
;
2141 ret
= iwlcore_verify_inst_sparse(priv
, image
, len
);
2143 IWL_DEBUG_INFO(priv
, "Runtime uCode is good in inst SRAM\n");
2147 IWL_ERR(priv
, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
2149 /* Since nothing seems to match, show first several data entries in
2150 * instruction SRAM, so maybe visual inspection will give a clue.
2151 * Selection of bootstrap image (vs. other images) is arbitrary. */
2152 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
2153 len
= priv
->ucode_boot
.len
;
2154 ret
= iwl_verify_inst_full(priv
, image
, len
);
2158 EXPORT_SYMBOL(iwl_verify_ucode
);
2161 void iwl_rf_kill_ct_config(struct iwl_priv
*priv
)
2163 struct iwl_ct_kill_config cmd
;
2164 struct iwl_ct_kill_throttling_config adv_cmd
;
2165 unsigned long flags
;
2168 spin_lock_irqsave(&priv
->lock
, flags
);
2169 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
2170 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
2171 spin_unlock_irqrestore(&priv
->lock
, flags
);
2172 priv
->thermal_throttle
.ct_kill_toggle
= false;
2174 if (priv
->cfg
->support_ct_kill_exit
) {
2175 adv_cmd
.critical_temperature_enter
=
2176 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
2177 adv_cmd
.critical_temperature_exit
=
2178 cpu_to_le32(priv
->hw_params
.ct_kill_exit_threshold
);
2180 ret
= iwl_send_cmd_pdu(priv
, REPLY_CT_KILL_CONFIG_CMD
,
2181 sizeof(adv_cmd
), &adv_cmd
);
2183 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
2185 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
2187 "critical temperature enter is %d,"
2189 priv
->hw_params
.ct_kill_threshold
,
2190 priv
->hw_params
.ct_kill_exit_threshold
);
2192 cmd
.critical_temperature_R
=
2193 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
2195 ret
= iwl_send_cmd_pdu(priv
, REPLY_CT_KILL_CONFIG_CMD
,
2198 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
2200 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
2202 "critical temperature is %d\n",
2203 priv
->hw_params
.ct_kill_threshold
);
2206 EXPORT_SYMBOL(iwl_rf_kill_ct_config
);
2212 * Use: Sets the device's internal card state to enable, disable, or halt
2214 * When in the 'enable' state the card operates as normal.
2215 * When in the 'disable' state, the card enters into a low power mode.
2216 * When in the 'halt' state, the card is shut down and must be fully
2217 * restarted to come back on.
2219 int iwl_send_card_state(struct iwl_priv
*priv
, u32 flags
, u8 meta_flag
)
2221 struct iwl_host_cmd cmd
= {
2222 .id
= REPLY_CARD_STATE_CMD
,
2228 return iwl_send_cmd(priv
, &cmd
);
2231 void iwl_rx_pm_sleep_notif(struct iwl_priv
*priv
,
2232 struct iwl_rx_mem_buffer
*rxb
)
2234 #ifdef CONFIG_IWLWIFI_DEBUG
2235 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
2236 struct iwl_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
2237 IWL_DEBUG_RX(priv
, "sleep mode: %d, src: %d\n",
2238 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
2241 EXPORT_SYMBOL(iwl_rx_pm_sleep_notif
);
2243 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
2244 struct iwl_rx_mem_buffer
*rxb
)
2246 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
2247 u32 len
= le32_to_cpu(pkt
->len_n_flags
) & FH_RSCSR_FRAME_SIZE_MSK
;
2248 IWL_DEBUG_RADIO(priv
, "Dumping %d bytes of unhandled "
2249 "notification for %s:\n", len
,
2250 get_cmd_string(pkt
->hdr
.cmd
));
2251 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, pkt
->u
.raw
, len
);
2253 EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif
);
2255 void iwl_rx_reply_error(struct iwl_priv
*priv
,
2256 struct iwl_rx_mem_buffer
*rxb
)
2258 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
2260 IWL_ERR(priv
, "Error Reply type 0x%08X cmd %s (0x%02X) "
2261 "seq 0x%04X ser 0x%08X\n",
2262 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
2263 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
2264 pkt
->u
.err_resp
.cmd_id
,
2265 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
2266 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
2268 EXPORT_SYMBOL(iwl_rx_reply_error
);
2270 void iwl_clear_isr_stats(struct iwl_priv
*priv
)
2272 memset(&priv
->isr_stats
, 0, sizeof(priv
->isr_stats
));
2275 int iwl_mac_conf_tx(struct ieee80211_hw
*hw
, u16 queue
,
2276 const struct ieee80211_tx_queue_params
*params
)
2278 struct iwl_priv
*priv
= hw
->priv
;
2279 unsigned long flags
;
2282 IWL_DEBUG_MAC80211(priv
, "enter\n");
2284 if (!iwl_is_ready_rf(priv
)) {
2285 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
2289 if (queue
>= AC_NUM
) {
2290 IWL_DEBUG_MAC80211(priv
, "leave - queue >= AC_NUM %d\n", queue
);
2294 q
= AC_NUM
- 1 - queue
;
2296 spin_lock_irqsave(&priv
->lock
, flags
);
2298 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
2299 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
2300 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
2301 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
2302 cpu_to_le16((params
->txop
* 32));
2304 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
2305 priv
->qos_data
.qos_active
= 1;
2307 if (priv
->iw_mode
== NL80211_IFTYPE_AP
)
2308 iwl_activate_qos(priv
, 1);
2309 else if (priv
->assoc_id
&& iwl_is_associated(priv
))
2310 iwl_activate_qos(priv
, 0);
2312 spin_unlock_irqrestore(&priv
->lock
, flags
);
2314 IWL_DEBUG_MAC80211(priv
, "leave\n");
2317 EXPORT_SYMBOL(iwl_mac_conf_tx
);
2319 static void iwl_ht_conf(struct iwl_priv
*priv
,
2320 struct ieee80211_bss_conf
*bss_conf
)
2322 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
2323 struct ieee80211_sta
*sta
;
2325 IWL_DEBUG_MAC80211(priv
, "enter: \n");
2327 if (!ht_conf
->is_ht
)
2330 ht_conf
->ht_protection
=
2331 bss_conf
->ht_operation_mode
& IEEE80211_HT_OP_MODE_PROTECTION
;
2332 ht_conf
->non_GF_STA_present
=
2333 !!(bss_conf
->ht_operation_mode
& IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT
);
2335 ht_conf
->single_chain_sufficient
= false;
2337 switch (priv
->iw_mode
) {
2338 case NL80211_IFTYPE_STATION
:
2340 sta
= ieee80211_find_sta(priv
->vif
, priv
->bssid
);
2342 struct ieee80211_sta_ht_cap
*ht_cap
= &sta
->ht_cap
;
2345 maxstreams
= (ht_cap
->mcs
.tx_params
&
2346 IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK
)
2347 >> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
;
2350 if ((ht_cap
->mcs
.rx_mask
[1] == 0) &&
2351 (ht_cap
->mcs
.rx_mask
[2] == 0))
2352 ht_conf
->single_chain_sufficient
= true;
2353 if (maxstreams
<= 1)
2354 ht_conf
->single_chain_sufficient
= true;
2357 * If at all, this can only happen through a race
2358 * when the AP disconnects us while we're still
2359 * setting up the connection, in that case mac80211
2360 * will soon tell us about that.
2362 ht_conf
->single_chain_sufficient
= true;
2366 case NL80211_IFTYPE_ADHOC
:
2367 ht_conf
->single_chain_sufficient
= true;
2373 IWL_DEBUG_MAC80211(priv
, "leave\n");
2376 static inline void iwl_set_no_assoc(struct iwl_priv
*priv
)
2379 iwl_led_disassociate(priv
);
2381 * inform the ucode that there is no longer an
2382 * association and that no more packets should be
2385 priv
->staging_rxon
.filter_flags
&=
2386 ~RXON_FILTER_ASSOC_MSK
;
2387 priv
->staging_rxon
.assoc_id
= 0;
2388 iwlcore_commit_rxon(priv
);
2391 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
2392 void iwl_bss_info_changed(struct ieee80211_hw
*hw
,
2393 struct ieee80211_vif
*vif
,
2394 struct ieee80211_bss_conf
*bss_conf
,
2397 struct iwl_priv
*priv
= hw
->priv
;
2400 IWL_DEBUG_MAC80211(priv
, "changes = 0x%X\n", changes
);
2402 if (!iwl_is_alive(priv
))
2405 mutex_lock(&priv
->mutex
);
2407 if (changes
& BSS_CHANGED_BEACON
&&
2408 priv
->iw_mode
== NL80211_IFTYPE_AP
) {
2409 dev_kfree_skb(priv
->ibss_beacon
);
2410 priv
->ibss_beacon
= ieee80211_beacon_get(hw
, vif
);
2413 if (changes
& BSS_CHANGED_BEACON_INT
) {
2414 priv
->beacon_int
= bss_conf
->beacon_int
;
2415 /* TODO: in AP mode, do something to make this take effect */
2418 if (changes
& BSS_CHANGED_BSSID
) {
2419 IWL_DEBUG_MAC80211(priv
, "BSSID %pM\n", bss_conf
->bssid
);
2422 * If there is currently a HW scan going on in the
2423 * background then we need to cancel it else the RXON
2424 * below/in post_associate will fail.
2426 if (iwl_scan_cancel_timeout(priv
, 100)) {
2427 IWL_WARN(priv
, "Aborted scan still in progress after 100ms\n");
2428 IWL_DEBUG_MAC80211(priv
, "leaving - scan abort failed.\n");
2429 mutex_unlock(&priv
->mutex
);
2433 /* mac80211 only sets assoc when in STATION mode */
2434 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
||
2436 memcpy(priv
->staging_rxon
.bssid_addr
,
2437 bss_conf
->bssid
, ETH_ALEN
);
2439 /* currently needed in a few places */
2440 memcpy(priv
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
2442 priv
->staging_rxon
.filter_flags
&=
2443 ~RXON_FILTER_ASSOC_MSK
;
2449 * This needs to be after setting the BSSID in case
2450 * mac80211 decides to do both changes at once because
2451 * it will invoke post_associate.
2453 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
&&
2454 changes
& BSS_CHANGED_BEACON
) {
2455 struct sk_buff
*beacon
= ieee80211_beacon_get(hw
, vif
);
2458 iwl_mac_beacon_update(hw
, beacon
);
2461 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
2462 IWL_DEBUG_MAC80211(priv
, "ERP_PREAMBLE %d\n",
2463 bss_conf
->use_short_preamble
);
2464 if (bss_conf
->use_short_preamble
)
2465 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2467 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2470 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
2471 IWL_DEBUG_MAC80211(priv
, "ERP_CTS %d\n", bss_conf
->use_cts_prot
);
2472 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
2473 priv
->staging_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
2475 priv
->staging_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
2478 if (changes
& BSS_CHANGED_BASIC_RATES
) {
2479 /* XXX use this information
2481 * To do that, remove code from iwl_set_rate() and put something
2485 priv->staging_rxon.ofdm_basic_rates =
2486 bss_conf->basic_rates;
2488 priv->staging_rxon.ofdm_basic_rates =
2489 bss_conf->basic_rates >> 4;
2490 priv->staging_rxon.cck_basic_rates =
2491 bss_conf->basic_rates & 0xF;
2495 if (changes
& BSS_CHANGED_HT
) {
2496 iwl_ht_conf(priv
, bss_conf
);
2498 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2499 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2502 if (changes
& BSS_CHANGED_ASSOC
) {
2503 IWL_DEBUG_MAC80211(priv
, "ASSOC %d\n", bss_conf
->assoc
);
2504 if (bss_conf
->assoc
) {
2505 priv
->assoc_id
= bss_conf
->aid
;
2506 priv
->beacon_int
= bss_conf
->beacon_int
;
2507 priv
->timestamp
= bss_conf
->timestamp
;
2508 priv
->assoc_capability
= bss_conf
->assoc_capability
;
2510 iwl_led_associate(priv
);
2513 * We have just associated, don't start scan too early
2514 * leave time for EAPOL exchange to complete.
2516 * XXX: do this in mac80211
2518 priv
->next_scan_jiffies
= jiffies
+
2519 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC
;
2520 if (!iwl_is_rfkill(priv
))
2521 priv
->cfg
->ops
->lib
->post_associate(priv
);
2523 iwl_set_no_assoc(priv
);
2526 if (changes
&& iwl_is_associated(priv
) && priv
->assoc_id
) {
2527 IWL_DEBUG_MAC80211(priv
, "Changes (%#x) while associated\n",
2529 ret
= iwl_send_rxon_assoc(priv
);
2531 /* Sync active_rxon with latest change. */
2532 memcpy((void *)&priv
->active_rxon
,
2533 &priv
->staging_rxon
,
2534 sizeof(struct iwl_rxon_cmd
));
2538 if (changes
& BSS_CHANGED_BEACON_ENABLED
) {
2539 if (vif
->bss_conf
.enable_beacon
) {
2540 memcpy(priv
->staging_rxon
.bssid_addr
,
2541 bss_conf
->bssid
, ETH_ALEN
);
2542 memcpy(priv
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
2543 iwlcore_config_ap(priv
);
2545 iwl_set_no_assoc(priv
);
2548 mutex_unlock(&priv
->mutex
);
2550 IWL_DEBUG_MAC80211(priv
, "leave\n");
2552 EXPORT_SYMBOL(iwl_bss_info_changed
);
2554 int iwl_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
2556 struct iwl_priv
*priv
= hw
->priv
;
2557 unsigned long flags
;
2560 IWL_DEBUG_MAC80211(priv
, "enter\n");
2562 if (!iwl_is_ready_rf(priv
)) {
2563 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
2567 if (priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) {
2568 IWL_DEBUG_MAC80211(priv
, "leave - not IBSS\n");
2572 spin_lock_irqsave(&priv
->lock
, flags
);
2574 if (priv
->ibss_beacon
)
2575 dev_kfree_skb(priv
->ibss_beacon
);
2577 priv
->ibss_beacon
= skb
;
2580 timestamp
= ((struct ieee80211_mgmt
*)skb
->data
)->u
.beacon
.timestamp
;
2581 priv
->timestamp
= le64_to_cpu(timestamp
);
2583 IWL_DEBUG_MAC80211(priv
, "leave\n");
2584 spin_unlock_irqrestore(&priv
->lock
, flags
);
2586 iwl_reset_qos(priv
);
2588 priv
->cfg
->ops
->lib
->post_associate(priv
);
2593 EXPORT_SYMBOL(iwl_mac_beacon_update
);
2595 int iwl_set_mode(struct iwl_priv
*priv
, int mode
)
2597 if (mode
== NL80211_IFTYPE_ADHOC
) {
2598 const struct iwl_channel_info
*ch_info
;
2600 ch_info
= iwl_get_channel_info(priv
,
2602 le16_to_cpu(priv
->staging_rxon
.channel
));
2604 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
2605 IWL_ERR(priv
, "channel %d not IBSS channel\n",
2606 le16_to_cpu(priv
->staging_rxon
.channel
));
2611 iwl_connection_init_rx_config(priv
, mode
);
2613 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2614 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2616 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2618 iwl_clear_stations_table(priv
);
2620 /* dont commit rxon if rf-kill is on*/
2621 if (!iwl_is_ready_rf(priv
))
2624 iwlcore_commit_rxon(priv
);
2628 EXPORT_SYMBOL(iwl_set_mode
);
2630 int iwl_mac_add_interface(struct ieee80211_hw
*hw
,
2631 struct ieee80211_vif
*vif
)
2633 struct iwl_priv
*priv
= hw
->priv
;
2636 IWL_DEBUG_MAC80211(priv
, "enter: type %d\n", vif
->type
);
2638 mutex_lock(&priv
->mutex
);
2641 IWL_DEBUG_MAC80211(priv
, "leave - vif != NULL\n");
2647 priv
->iw_mode
= vif
->type
;
2650 IWL_DEBUG_MAC80211(priv
, "Set %pM\n", vif
->addr
);
2651 memcpy(priv
->mac_addr
, vif
->addr
, ETH_ALEN
);
2654 if (iwl_set_mode(priv
, vif
->type
) == -EAGAIN
)
2655 /* we are not ready, will run again when ready */
2656 set_bit(STATUS_MODE_PENDING
, &priv
->status
);
2659 mutex_unlock(&priv
->mutex
);
2661 IWL_DEBUG_MAC80211(priv
, "leave\n");
2664 EXPORT_SYMBOL(iwl_mac_add_interface
);
2666 void iwl_mac_remove_interface(struct ieee80211_hw
*hw
,
2667 struct ieee80211_vif
*vif
)
2669 struct iwl_priv
*priv
= hw
->priv
;
2671 IWL_DEBUG_MAC80211(priv
, "enter\n");
2673 mutex_lock(&priv
->mutex
);
2675 if (iwl_is_ready_rf(priv
)) {
2676 iwl_scan_cancel_timeout(priv
, 100);
2677 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2678 iwlcore_commit_rxon(priv
);
2680 if (priv
->vif
== vif
) {
2682 memset(priv
->bssid
, 0, ETH_ALEN
);
2684 mutex_unlock(&priv
->mutex
);
2686 IWL_DEBUG_MAC80211(priv
, "leave\n");
2689 EXPORT_SYMBOL(iwl_mac_remove_interface
);
2692 * iwl_mac_config - mac80211 config callback
2694 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
2695 * be set inappropriately and the driver currently sets the hardware up to
2696 * use it whenever needed.
2698 int iwl_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
2700 struct iwl_priv
*priv
= hw
->priv
;
2701 const struct iwl_channel_info
*ch_info
;
2702 struct ieee80211_conf
*conf
= &hw
->conf
;
2703 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
2704 unsigned long flags
= 0;
2707 int scan_active
= 0;
2709 mutex_lock(&priv
->mutex
);
2711 IWL_DEBUG_MAC80211(priv
, "enter to channel %d changed 0x%X\n",
2712 conf
->channel
->hw_value
, changed
);
2714 if (unlikely(!priv
->cfg
->mod_params
->disable_hw_scan
&&
2715 test_bit(STATUS_SCANNING
, &priv
->status
))) {
2717 IWL_DEBUG_MAC80211(priv
, "leave - scanning\n");
2720 if (changed
& (IEEE80211_CONF_CHANGE_SMPS
|
2721 IEEE80211_CONF_CHANGE_CHANNEL
)) {
2722 /* mac80211 uses static for non-HT which is what we want */
2723 priv
->current_ht_config
.smps
= conf
->smps_mode
;
2726 * Recalculate chain counts.
2728 * If monitor mode is enabled then mac80211 will
2729 * set up the SM PS mode to OFF if an HT channel is
2732 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2733 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2736 /* during scanning mac80211 will delay channel setting until
2737 * scan finish with changed = 0
2739 if (!changed
|| (changed
& IEEE80211_CONF_CHANGE_CHANNEL
)) {
2743 ch
= ieee80211_frequency_to_channel(conf
->channel
->center_freq
);
2744 ch_info
= iwl_get_channel_info(priv
, conf
->channel
->band
, ch
);
2745 if (!is_channel_valid(ch_info
)) {
2746 IWL_DEBUG_MAC80211(priv
, "leave - invalid channel\n");
2751 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
&&
2752 !is_channel_ibss(ch_info
)) {
2753 IWL_ERR(priv
, "channel %d in band %d not "
2755 conf
->channel
->hw_value
, conf
->channel
->band
);
2760 spin_lock_irqsave(&priv
->lock
, flags
);
2762 /* Configure HT40 channels */
2763 ht_conf
->is_ht
= conf_is_ht(conf
);
2764 if (ht_conf
->is_ht
) {
2765 if (conf_is_ht40_minus(conf
)) {
2766 ht_conf
->extension_chan_offset
=
2767 IEEE80211_HT_PARAM_CHA_SEC_BELOW
;
2768 ht_conf
->is_40mhz
= true;
2769 } else if (conf_is_ht40_plus(conf
)) {
2770 ht_conf
->extension_chan_offset
=
2771 IEEE80211_HT_PARAM_CHA_SEC_ABOVE
;
2772 ht_conf
->is_40mhz
= true;
2774 ht_conf
->extension_chan_offset
=
2775 IEEE80211_HT_PARAM_CHA_SEC_NONE
;
2776 ht_conf
->is_40mhz
= false;
2779 ht_conf
->is_40mhz
= false;
2780 /* Default to no protection. Protection mode will later be set
2781 * from BSS config in iwl_ht_conf */
2782 ht_conf
->ht_protection
= IEEE80211_HT_OP_MODE_PROTECTION_NONE
;
2784 /* if we are switching from ht to 2.4 clear flags
2785 * from any ht related info since 2.4 does not
2787 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != ch
))
2788 priv
->staging_rxon
.flags
= 0;
2790 iwl_set_rxon_channel(priv
, conf
->channel
);
2792 iwl_set_flags_for_band(priv
, conf
->channel
->band
);
2793 spin_unlock_irqrestore(&priv
->lock
, flags
);
2794 if (iwl_is_associated(priv
) &&
2795 (le16_to_cpu(priv
->active_rxon
.channel
) != ch
) &&
2796 priv
->cfg
->ops
->lib
->set_channel_switch
) {
2799 * at this point, staging_rxon has the
2800 * configuration for channel switch
2802 ret
= priv
->cfg
->ops
->lib
->set_channel_switch(priv
,
2805 iwl_print_rx_config_cmd(priv
);
2808 priv
->switch_rxon
.switch_in_progress
= false;
2811 /* The list of supported rates and rate mask can be different
2812 * for each band; since the band may have changed, reset
2813 * the rate mask to what mac80211 lists */
2817 if (changed
& (IEEE80211_CONF_CHANGE_PS
|
2818 IEEE80211_CONF_CHANGE_IDLE
)) {
2819 ret
= iwl_power_update_mode(priv
, false);
2821 IWL_DEBUG_MAC80211(priv
, "Error setting sleep level\n");
2824 if (changed
& IEEE80211_CONF_CHANGE_POWER
) {
2825 IWL_DEBUG_MAC80211(priv
, "TX Power old=%d new=%d\n",
2826 priv
->tx_power_user_lmt
, conf
->power_level
);
2828 iwl_set_tx_power(priv
, conf
->power_level
, false);
2831 if (!iwl_is_ready(priv
)) {
2832 IWL_DEBUG_MAC80211(priv
, "leave - not ready\n");
2839 if (memcmp(&priv
->active_rxon
,
2840 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
2841 iwlcore_commit_rxon(priv
);
2843 IWL_DEBUG_INFO(priv
, "Not re-sending same RXON configuration.\n");
2847 IWL_DEBUG_MAC80211(priv
, "leave\n");
2848 mutex_unlock(&priv
->mutex
);
2851 EXPORT_SYMBOL(iwl_mac_config
);
2853 int iwl_mac_get_tx_stats(struct ieee80211_hw
*hw
,
2854 struct ieee80211_tx_queue_stats
*stats
)
2856 struct iwl_priv
*priv
= hw
->priv
;
2858 struct iwl_tx_queue
*txq
;
2859 struct iwl_queue
*q
;
2860 unsigned long flags
;
2862 IWL_DEBUG_MAC80211(priv
, "enter\n");
2864 if (!iwl_is_ready_rf(priv
)) {
2865 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
2869 spin_lock_irqsave(&priv
->lock
, flags
);
2871 for (i
= 0; i
< AC_NUM
; i
++) {
2872 txq
= &priv
->txq
[i
];
2874 avail
= iwl_queue_space(q
);
2876 stats
[i
].len
= q
->n_window
- avail
;
2877 stats
[i
].limit
= q
->n_window
- q
->high_mark
;
2878 stats
[i
].count
= q
->n_window
;
2881 spin_unlock_irqrestore(&priv
->lock
, flags
);
2883 IWL_DEBUG_MAC80211(priv
, "leave\n");
2887 EXPORT_SYMBOL(iwl_mac_get_tx_stats
);
2889 void iwl_mac_reset_tsf(struct ieee80211_hw
*hw
)
2891 struct iwl_priv
*priv
= hw
->priv
;
2892 unsigned long flags
;
2894 mutex_lock(&priv
->mutex
);
2895 IWL_DEBUG_MAC80211(priv
, "enter\n");
2897 spin_lock_irqsave(&priv
->lock
, flags
);
2898 memset(&priv
->current_ht_config
, 0, sizeof(struct iwl_ht_config
));
2899 spin_unlock_irqrestore(&priv
->lock
, flags
);
2901 iwl_reset_qos(priv
);
2903 spin_lock_irqsave(&priv
->lock
, flags
);
2905 priv
->assoc_capability
= 0;
2906 priv
->assoc_station_added
= 0;
2908 /* new association get rid of ibss beacon skb */
2909 if (priv
->ibss_beacon
)
2910 dev_kfree_skb(priv
->ibss_beacon
);
2912 priv
->ibss_beacon
= NULL
;
2914 priv
->beacon_int
= priv
->vif
->bss_conf
.beacon_int
;
2915 priv
->timestamp
= 0;
2916 if ((priv
->iw_mode
== NL80211_IFTYPE_STATION
))
2917 priv
->beacon_int
= 0;
2919 spin_unlock_irqrestore(&priv
->lock
, flags
);
2921 if (!iwl_is_ready_rf(priv
)) {
2922 IWL_DEBUG_MAC80211(priv
, "leave - not ready\n");
2923 mutex_unlock(&priv
->mutex
);
2927 /* we are restarting association process
2928 * clear RXON_FILTER_ASSOC_MSK bit
2930 if (priv
->iw_mode
!= NL80211_IFTYPE_AP
) {
2931 iwl_scan_cancel_timeout(priv
, 100);
2932 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2933 iwlcore_commit_rxon(priv
);
2936 if (priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) {
2937 IWL_DEBUG_MAC80211(priv
, "leave - not in IBSS\n");
2938 mutex_unlock(&priv
->mutex
);
2944 mutex_unlock(&priv
->mutex
);
2946 IWL_DEBUG_MAC80211(priv
, "leave\n");
2948 EXPORT_SYMBOL(iwl_mac_reset_tsf
);
2950 int iwl_alloc_txq_mem(struct iwl_priv
*priv
)
2953 priv
->txq
= kzalloc(
2954 sizeof(struct iwl_tx_queue
) * priv
->cfg
->num_of_queues
,
2957 IWL_ERR(priv
, "Not enough memory for txq \n");
2962 EXPORT_SYMBOL(iwl_alloc_txq_mem
);
2964 void iwl_free_txq_mem(struct iwl_priv
*priv
)
2969 EXPORT_SYMBOL(iwl_free_txq_mem
);
2971 int iwl_send_wimax_coex(struct iwl_priv
*priv
)
2973 struct iwl_wimax_coex_cmd
uninitialized_var(coex_cmd
);
2975 if (priv
->cfg
->support_wimax_coexist
) {
2976 /* UnMask wake up src at associated sleep */
2977 coex_cmd
.flags
|= COEX_FLAGS_ASSOC_WA_UNMASK_MSK
;
2979 /* UnMask wake up src at unassociated sleep */
2980 coex_cmd
.flags
|= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK
;
2981 memcpy(coex_cmd
.sta_prio
, cu_priorities
,
2982 sizeof(struct iwl_wimax_coex_event_entry
) *
2983 COEX_NUM_OF_EVENTS
);
2985 /* enabling the coexistence feature */
2986 coex_cmd
.flags
|= COEX_FLAGS_COEX_ENABLE_MSK
;
2988 /* enabling the priorities tables */
2989 coex_cmd
.flags
|= COEX_FLAGS_STA_TABLE_VALID_MSK
;
2991 /* coexistence is disabled */
2992 memset(&coex_cmd
, 0, sizeof(coex_cmd
));
2994 return iwl_send_cmd_pdu(priv
, COEX_PRIORITY_TABLE_CMD
,
2995 sizeof(coex_cmd
), &coex_cmd
);
2997 EXPORT_SYMBOL(iwl_send_wimax_coex
);
2999 #ifdef CONFIG_IWLWIFI_DEBUGFS
3001 #define IWL_TRAFFIC_DUMP_SIZE (IWL_TRAFFIC_ENTRY_SIZE * IWL_TRAFFIC_ENTRIES)
3003 void iwl_reset_traffic_log(struct iwl_priv
*priv
)
3005 priv
->tx_traffic_idx
= 0;
3006 priv
->rx_traffic_idx
= 0;
3007 if (priv
->tx_traffic
)
3008 memset(priv
->tx_traffic
, 0, IWL_TRAFFIC_DUMP_SIZE
);
3009 if (priv
->rx_traffic
)
3010 memset(priv
->rx_traffic
, 0, IWL_TRAFFIC_DUMP_SIZE
);
3013 int iwl_alloc_traffic_mem(struct iwl_priv
*priv
)
3015 u32 traffic_size
= IWL_TRAFFIC_DUMP_SIZE
;
3017 if (iwl_debug_level
& IWL_DL_TX
) {
3018 if (!priv
->tx_traffic
) {
3020 kzalloc(traffic_size
, GFP_KERNEL
);
3021 if (!priv
->tx_traffic
)
3025 if (iwl_debug_level
& IWL_DL_RX
) {
3026 if (!priv
->rx_traffic
) {
3028 kzalloc(traffic_size
, GFP_KERNEL
);
3029 if (!priv
->rx_traffic
)
3033 iwl_reset_traffic_log(priv
);
3036 EXPORT_SYMBOL(iwl_alloc_traffic_mem
);
3038 void iwl_free_traffic_mem(struct iwl_priv
*priv
)
3040 kfree(priv
->tx_traffic
);
3041 priv
->tx_traffic
= NULL
;
3043 kfree(priv
->rx_traffic
);
3044 priv
->rx_traffic
= NULL
;
3046 EXPORT_SYMBOL(iwl_free_traffic_mem
);
3048 void iwl_dbg_log_tx_data_frame(struct iwl_priv
*priv
,
3049 u16 length
, struct ieee80211_hdr
*header
)
3054 if (likely(!(iwl_debug_level
& IWL_DL_TX
)))
3057 if (!priv
->tx_traffic
)
3060 fc
= header
->frame_control
;
3061 if (ieee80211_is_data(fc
)) {
3062 len
= (length
> IWL_TRAFFIC_ENTRY_SIZE
)
3063 ? IWL_TRAFFIC_ENTRY_SIZE
: length
;
3064 memcpy((priv
->tx_traffic
+
3065 (priv
->tx_traffic_idx
* IWL_TRAFFIC_ENTRY_SIZE
)),
3067 priv
->tx_traffic_idx
=
3068 (priv
->tx_traffic_idx
+ 1) % IWL_TRAFFIC_ENTRIES
;
3071 EXPORT_SYMBOL(iwl_dbg_log_tx_data_frame
);
3073 void iwl_dbg_log_rx_data_frame(struct iwl_priv
*priv
,
3074 u16 length
, struct ieee80211_hdr
*header
)
3079 if (likely(!(iwl_debug_level
& IWL_DL_RX
)))
3082 if (!priv
->rx_traffic
)
3085 fc
= header
->frame_control
;
3086 if (ieee80211_is_data(fc
)) {
3087 len
= (length
> IWL_TRAFFIC_ENTRY_SIZE
)
3088 ? IWL_TRAFFIC_ENTRY_SIZE
: length
;
3089 memcpy((priv
->rx_traffic
+
3090 (priv
->rx_traffic_idx
* IWL_TRAFFIC_ENTRY_SIZE
)),
3092 priv
->rx_traffic_idx
=
3093 (priv
->rx_traffic_idx
+ 1) % IWL_TRAFFIC_ENTRIES
;
3096 EXPORT_SYMBOL(iwl_dbg_log_rx_data_frame
);
3098 const char *get_mgmt_string(int cmd
)
3101 IWL_CMD(MANAGEMENT_ASSOC_REQ
);
3102 IWL_CMD(MANAGEMENT_ASSOC_RESP
);
3103 IWL_CMD(MANAGEMENT_REASSOC_REQ
);
3104 IWL_CMD(MANAGEMENT_REASSOC_RESP
);
3105 IWL_CMD(MANAGEMENT_PROBE_REQ
);
3106 IWL_CMD(MANAGEMENT_PROBE_RESP
);
3107 IWL_CMD(MANAGEMENT_BEACON
);
3108 IWL_CMD(MANAGEMENT_ATIM
);
3109 IWL_CMD(MANAGEMENT_DISASSOC
);
3110 IWL_CMD(MANAGEMENT_AUTH
);
3111 IWL_CMD(MANAGEMENT_DEAUTH
);
3112 IWL_CMD(MANAGEMENT_ACTION
);
3119 const char *get_ctrl_string(int cmd
)
3122 IWL_CMD(CONTROL_BACK_REQ
);
3123 IWL_CMD(CONTROL_BACK
);
3124 IWL_CMD(CONTROL_PSPOLL
);
3125 IWL_CMD(CONTROL_RTS
);
3126 IWL_CMD(CONTROL_CTS
);
3127 IWL_CMD(CONTROL_ACK
);
3128 IWL_CMD(CONTROL_CFEND
);
3129 IWL_CMD(CONTROL_CFENDACK
);
3136 void iwl_clear_traffic_stats(struct iwl_priv
*priv
)
3138 memset(&priv
->tx_stats
, 0, sizeof(struct traffic_stats
));
3139 memset(&priv
->rx_stats
, 0, sizeof(struct traffic_stats
));
3144 * if CONFIG_IWLWIFI_DEBUGFS defined, iwl_update_stats function will
3145 * record all the MGMT, CTRL and DATA pkt for both TX and Rx pass.
3146 * Use debugFs to display the rx/rx_statistics
3147 * if CONFIG_IWLWIFI_DEBUGFS not being defined, then no MGMT and CTRL
3148 * information will be recorded, but DATA pkt still will be recorded
3149 * for the reason of iwl_led.c need to control the led blinking based on
3150 * number of tx and rx data.
3153 void iwl_update_stats(struct iwl_priv
*priv
, bool is_tx
, __le16 fc
, u16 len
)
3155 struct traffic_stats
*stats
;
3158 stats
= &priv
->tx_stats
;
3160 stats
= &priv
->rx_stats
;
3162 if (ieee80211_is_mgmt(fc
)) {
3163 switch (fc
& cpu_to_le16(IEEE80211_FCTL_STYPE
)) {
3164 case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ
):
3165 stats
->mgmt
[MANAGEMENT_ASSOC_REQ
]++;
3167 case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP
):
3168 stats
->mgmt
[MANAGEMENT_ASSOC_RESP
]++;
3170 case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ
):
3171 stats
->mgmt
[MANAGEMENT_REASSOC_REQ
]++;
3173 case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP
):
3174 stats
->mgmt
[MANAGEMENT_REASSOC_RESP
]++;
3176 case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
):
3177 stats
->mgmt
[MANAGEMENT_PROBE_REQ
]++;
3179 case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP
):
3180 stats
->mgmt
[MANAGEMENT_PROBE_RESP
]++;
3182 case cpu_to_le16(IEEE80211_STYPE_BEACON
):
3183 stats
->mgmt
[MANAGEMENT_BEACON
]++;
3185 case cpu_to_le16(IEEE80211_STYPE_ATIM
):
3186 stats
->mgmt
[MANAGEMENT_ATIM
]++;
3188 case cpu_to_le16(IEEE80211_STYPE_DISASSOC
):
3189 stats
->mgmt
[MANAGEMENT_DISASSOC
]++;
3191 case cpu_to_le16(IEEE80211_STYPE_AUTH
):
3192 stats
->mgmt
[MANAGEMENT_AUTH
]++;
3194 case cpu_to_le16(IEEE80211_STYPE_DEAUTH
):
3195 stats
->mgmt
[MANAGEMENT_DEAUTH
]++;
3197 case cpu_to_le16(IEEE80211_STYPE_ACTION
):
3198 stats
->mgmt
[MANAGEMENT_ACTION
]++;
3201 } else if (ieee80211_is_ctl(fc
)) {
3202 switch (fc
& cpu_to_le16(IEEE80211_FCTL_STYPE
)) {
3203 case cpu_to_le16(IEEE80211_STYPE_BACK_REQ
):
3204 stats
->ctrl
[CONTROL_BACK_REQ
]++;
3206 case cpu_to_le16(IEEE80211_STYPE_BACK
):
3207 stats
->ctrl
[CONTROL_BACK
]++;
3209 case cpu_to_le16(IEEE80211_STYPE_PSPOLL
):
3210 stats
->ctrl
[CONTROL_PSPOLL
]++;
3212 case cpu_to_le16(IEEE80211_STYPE_RTS
):
3213 stats
->ctrl
[CONTROL_RTS
]++;
3215 case cpu_to_le16(IEEE80211_STYPE_CTS
):
3216 stats
->ctrl
[CONTROL_CTS
]++;
3218 case cpu_to_le16(IEEE80211_STYPE_ACK
):
3219 stats
->ctrl
[CONTROL_ACK
]++;
3221 case cpu_to_le16(IEEE80211_STYPE_CFEND
):
3222 stats
->ctrl
[CONTROL_CFEND
]++;
3224 case cpu_to_le16(IEEE80211_STYPE_CFENDACK
):
3225 stats
->ctrl
[CONTROL_CFENDACK
]++;
3231 stats
->data_bytes
+= len
;
3233 iwl_leds_background(priv
);
3235 EXPORT_SYMBOL(iwl_update_stats
);
3238 const static char *get_csr_string(int cmd
)
3241 IWL_CMD(CSR_HW_IF_CONFIG_REG
);
3242 IWL_CMD(CSR_INT_COALESCING
);
3244 IWL_CMD(CSR_INT_MASK
);
3245 IWL_CMD(CSR_FH_INT_STATUS
);
3246 IWL_CMD(CSR_GPIO_IN
);
3248 IWL_CMD(CSR_GP_CNTRL
);
3249 IWL_CMD(CSR_HW_REV
);
3250 IWL_CMD(CSR_EEPROM_REG
);
3251 IWL_CMD(CSR_EEPROM_GP
);
3252 IWL_CMD(CSR_OTP_GP_REG
);
3253 IWL_CMD(CSR_GIO_REG
);
3254 IWL_CMD(CSR_GP_UCODE_REG
);
3255 IWL_CMD(CSR_GP_DRIVER_REG
);
3256 IWL_CMD(CSR_UCODE_DRV_GP1
);
3257 IWL_CMD(CSR_UCODE_DRV_GP2
);
3258 IWL_CMD(CSR_LED_REG
);
3259 IWL_CMD(CSR_DRAM_INT_TBL_REG
);
3260 IWL_CMD(CSR_GIO_CHICKEN_BITS
);
3261 IWL_CMD(CSR_ANA_PLL_CFG
);
3262 IWL_CMD(CSR_HW_REV_WA_REG
);
3263 IWL_CMD(CSR_DBG_HPET_MEM_REG
);
3270 void iwl_dump_csr(struct iwl_priv
*priv
)
3274 CSR_HW_IF_CONFIG_REG
,
3292 CSR_DRAM_INT_TBL_REG
,
3293 CSR_GIO_CHICKEN_BITS
,
3296 CSR_DBG_HPET_MEM_REG
3298 IWL_ERR(priv
, "CSR values:\n");
3299 IWL_ERR(priv
, "(2nd byte of CSR_INT_COALESCING is "
3300 "CSR_INT_PERIODIC_REG)\n");
3301 for (i
= 0; i
< ARRAY_SIZE(csr_tbl
); i
++) {
3302 IWL_ERR(priv
, " %25s: 0X%08x\n",
3303 get_csr_string(csr_tbl
[i
]),
3304 iwl_read32(priv
, csr_tbl
[i
]));
3307 EXPORT_SYMBOL(iwl_dump_csr
);
3309 const static char *get_fh_string(int cmd
)
3312 IWL_CMD(FH_RSCSR_CHNL0_STTS_WPTR_REG
);
3313 IWL_CMD(FH_RSCSR_CHNL0_RBDCB_BASE_REG
);
3314 IWL_CMD(FH_RSCSR_CHNL0_WPTR
);
3315 IWL_CMD(FH_MEM_RCSR_CHNL0_CONFIG_REG
);
3316 IWL_CMD(FH_MEM_RSSR_SHARED_CTRL_REG
);
3317 IWL_CMD(FH_MEM_RSSR_RX_STATUS_REG
);
3318 IWL_CMD(FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV
);
3319 IWL_CMD(FH_TSSR_TX_STATUS_REG
);
3320 IWL_CMD(FH_TSSR_TX_ERROR_REG
);
3327 int iwl_dump_fh(struct iwl_priv
*priv
, char **buf
, bool display
)
3330 #ifdef CONFIG_IWLWIFI_DEBUG
3335 FH_RSCSR_CHNL0_STTS_WPTR_REG
,
3336 FH_RSCSR_CHNL0_RBDCB_BASE_REG
,
3337 FH_RSCSR_CHNL0_WPTR
,
3338 FH_MEM_RCSR_CHNL0_CONFIG_REG
,
3339 FH_MEM_RSSR_SHARED_CTRL_REG
,
3340 FH_MEM_RSSR_RX_STATUS_REG
,
3341 FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV
,
3342 FH_TSSR_TX_STATUS_REG
,
3343 FH_TSSR_TX_ERROR_REG
3345 #ifdef CONFIG_IWLWIFI_DEBUG
3347 bufsz
= ARRAY_SIZE(fh_tbl
) * 48 + 40;
3348 *buf
= kmalloc(bufsz
, GFP_KERNEL
);
3351 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
3352 "FH register values:\n");
3353 for (i
= 0; i
< ARRAY_SIZE(fh_tbl
); i
++) {
3354 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
3356 get_fh_string(fh_tbl
[i
]),
3357 iwl_read_direct32(priv
, fh_tbl
[i
]));
3362 IWL_ERR(priv
, "FH register values:\n");
3363 for (i
= 0; i
< ARRAY_SIZE(fh_tbl
); i
++) {
3364 IWL_ERR(priv
, " %34s: 0X%08x\n",
3365 get_fh_string(fh_tbl
[i
]),
3366 iwl_read_direct32(priv
, fh_tbl
[i
]));
3370 EXPORT_SYMBOL(iwl_dump_fh
);
3372 void iwl_force_rf_reset(struct iwl_priv
*priv
)
3374 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3377 if (!iwl_is_associated(priv
)) {
3378 IWL_DEBUG_SCAN(priv
, "force reset rejected: not associated\n");
3382 * There is no easy and better way to force reset the radio,
3383 * the only known method is switching channel which will force to
3384 * reset and tune the radio.
3385 * Use internal short scan (single channel) operation to should
3386 * achieve this objective.
3387 * Driver should reset the radio when number of consecutive missed
3388 * beacon, or any other uCode error condition detected.
3390 IWL_DEBUG_INFO(priv
, "perform radio reset.\n");
3391 iwl_internal_short_hw_scan(priv
);
3394 EXPORT_SYMBOL(iwl_force_rf_reset
);
3398 int iwl_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
3400 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
3403 * This function is called when system goes into suspend state
3404 * mac80211 will call iwl_mac_stop() from the mac80211 suspend function
3405 * first but since iwl_mac_stop() has no knowledge of who the caller is,
3406 * it will not call apm_ops.stop() to stop the DMA operation.
3407 * Calling apm_ops.stop here to make sure we stop the DMA.
3409 priv
->cfg
->ops
->lib
->apm_ops
.stop(priv
);
3411 pci_save_state(pdev
);
3412 pci_disable_device(pdev
);
3413 pci_set_power_state(pdev
, PCI_D3hot
);
3417 EXPORT_SYMBOL(iwl_pci_suspend
);
3419 int iwl_pci_resume(struct pci_dev
*pdev
)
3421 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
3424 pci_set_power_state(pdev
, PCI_D0
);
3425 ret
= pci_enable_device(pdev
);
3428 pci_restore_state(pdev
);
3429 iwl_enable_interrupts(priv
);
3433 EXPORT_SYMBOL(iwl_pci_resume
);
3435 #endif /* CONFIG_PM */