1 /******************************************************************************
5 * Copyright(c) 2008 - 2009 Intel Corporation. All rights reserved.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.GPL.
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *****************************************************************************/
29 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/etherdevice.h>
32 #include <net/mac80211.h>
34 #include "iwl-eeprom.h"
35 #include "iwl-dev.h" /* FIXME: remove */
36 #include "iwl-debug.h"
39 #include "iwl-power.h"
41 #include "iwl-helpers.h"
44 MODULE_DESCRIPTION("iwl core");
45 MODULE_VERSION(IWLWIFI_VERSION
);
46 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
47 MODULE_LICENSE("GPL");
49 static struct iwl_wimax_coex_event_entry cu_priorities
[COEX_NUM_OF_EVENTS
] = {
50 {COEX_CU_UNASSOC_IDLE_RP
, COEX_CU_UNASSOC_IDLE_WP
,
51 0, COEX_UNASSOC_IDLE_FLAGS
},
52 {COEX_CU_UNASSOC_MANUAL_SCAN_RP
, COEX_CU_UNASSOC_MANUAL_SCAN_WP
,
53 0, COEX_UNASSOC_MANUAL_SCAN_FLAGS
},
54 {COEX_CU_UNASSOC_AUTO_SCAN_RP
, COEX_CU_UNASSOC_AUTO_SCAN_WP
,
55 0, COEX_UNASSOC_AUTO_SCAN_FLAGS
},
56 {COEX_CU_CALIBRATION_RP
, COEX_CU_CALIBRATION_WP
,
57 0, COEX_CALIBRATION_FLAGS
},
58 {COEX_CU_PERIODIC_CALIBRATION_RP
, COEX_CU_PERIODIC_CALIBRATION_WP
,
59 0, COEX_PERIODIC_CALIBRATION_FLAGS
},
60 {COEX_CU_CONNECTION_ESTAB_RP
, COEX_CU_CONNECTION_ESTAB_WP
,
61 0, COEX_CONNECTION_ESTAB_FLAGS
},
62 {COEX_CU_ASSOCIATED_IDLE_RP
, COEX_CU_ASSOCIATED_IDLE_WP
,
63 0, COEX_ASSOCIATED_IDLE_FLAGS
},
64 {COEX_CU_ASSOC_MANUAL_SCAN_RP
, COEX_CU_ASSOC_MANUAL_SCAN_WP
,
65 0, COEX_ASSOC_MANUAL_SCAN_FLAGS
},
66 {COEX_CU_ASSOC_AUTO_SCAN_RP
, COEX_CU_ASSOC_AUTO_SCAN_WP
,
67 0, COEX_ASSOC_AUTO_SCAN_FLAGS
},
68 {COEX_CU_ASSOC_ACTIVE_LEVEL_RP
, COEX_CU_ASSOC_ACTIVE_LEVEL_WP
,
69 0, COEX_ASSOC_ACTIVE_LEVEL_FLAGS
},
70 {COEX_CU_RF_ON_RP
, COEX_CU_RF_ON_WP
, 0, COEX_CU_RF_ON_FLAGS
},
71 {COEX_CU_RF_OFF_RP
, COEX_CU_RF_OFF_WP
, 0, COEX_RF_OFF_FLAGS
},
72 {COEX_CU_STAND_ALONE_DEBUG_RP
, COEX_CU_STAND_ALONE_DEBUG_WP
,
73 0, COEX_STAND_ALONE_DEBUG_FLAGS
},
74 {COEX_CU_IPAN_ASSOC_LEVEL_RP
, COEX_CU_IPAN_ASSOC_LEVEL_WP
,
75 0, COEX_IPAN_ASSOC_LEVEL_FLAGS
},
76 {COEX_CU_RSRVD1_RP
, COEX_CU_RSRVD1_WP
, 0, COEX_RSRVD1_FLAGS
},
77 {COEX_CU_RSRVD2_RP
, COEX_CU_RSRVD2_WP
, 0, COEX_RSRVD2_FLAGS
}
80 #define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \
81 [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
82 IWL_RATE_SISO_##s##M_PLCP, \
83 IWL_RATE_MIMO2_##s##M_PLCP,\
84 IWL_RATE_MIMO3_##s##M_PLCP,\
85 IWL_RATE_##r##M_IEEE, \
86 IWL_RATE_##ip##M_INDEX, \
87 IWL_RATE_##in##M_INDEX, \
88 IWL_RATE_##rp##M_INDEX, \
89 IWL_RATE_##rn##M_INDEX, \
90 IWL_RATE_##pp##M_INDEX, \
91 IWL_RATE_##np##M_INDEX }
94 EXPORT_SYMBOL(iwl_debug_level
);
96 static irqreturn_t
iwl_isr(int irq
, void *data
);
100 * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate
102 * If there isn't a valid next or previous rate then INV is used which
103 * maps to IWL_RATE_INVALID
106 const struct iwl_rate_info iwl_rates
[IWL_RATE_COUNT
] = {
107 IWL_DECLARE_RATE_INFO(1, INV
, INV
, 2, INV
, 2, INV
, 2), /* 1mbps */
108 IWL_DECLARE_RATE_INFO(2, INV
, 1, 5, 1, 5, 1, 5), /* 2mbps */
109 IWL_DECLARE_RATE_INFO(5, INV
, 2, 6, 2, 11, 2, 11), /*5.5mbps */
110 IWL_DECLARE_RATE_INFO(11, INV
, 9, 12, 9, 12, 5, 18), /* 11mbps */
111 IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */
112 IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */
113 IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */
114 IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */
115 IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */
116 IWL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */
117 IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */
118 IWL_DECLARE_RATE_INFO(54, 54, 48, INV
, 48, INV
, 48, INV
),/* 54mbps */
119 IWL_DECLARE_RATE_INFO(60, 60, 48, INV
, 48, INV
, 48, INV
),/* 60mbps */
120 /* FIXME:RS: ^^ should be INV (legacy) */
122 EXPORT_SYMBOL(iwl_rates
);
125 * translate ucode response to mac80211 tx status control values
127 void iwl_hwrate_to_tx_control(struct iwl_priv
*priv
, u32 rate_n_flags
,
128 struct ieee80211_tx_info
*info
)
130 struct ieee80211_tx_rate
*r
= &info
->control
.rates
[0];
132 info
->antenna_sel_tx
=
133 ((rate_n_flags
& RATE_MCS_ANT_ABC_MSK
) >> RATE_MCS_ANT_POS
);
134 if (rate_n_flags
& RATE_MCS_HT_MSK
)
135 r
->flags
|= IEEE80211_TX_RC_MCS
;
136 if (rate_n_flags
& RATE_MCS_GF_MSK
)
137 r
->flags
|= IEEE80211_TX_RC_GREEN_FIELD
;
138 if (rate_n_flags
& RATE_MCS_HT40_MSK
)
139 r
->flags
|= IEEE80211_TX_RC_40_MHZ_WIDTH
;
140 if (rate_n_flags
& RATE_MCS_DUP_MSK
)
141 r
->flags
|= IEEE80211_TX_RC_DUP_DATA
;
142 if (rate_n_flags
& RATE_MCS_SGI_MSK
)
143 r
->flags
|= IEEE80211_TX_RC_SHORT_GI
;
144 r
->idx
= iwl_hwrate_to_mac80211_idx(rate_n_flags
, info
->band
);
146 EXPORT_SYMBOL(iwl_hwrate_to_tx_control
);
148 int iwl_hwrate_to_plcp_idx(u32 rate_n_flags
)
153 if (rate_n_flags
& RATE_MCS_HT_MSK
) {
154 idx
= (rate_n_flags
& 0xff);
156 if (idx
>= IWL_RATE_MIMO3_6M_PLCP
)
157 idx
= idx
- IWL_RATE_MIMO3_6M_PLCP
;
158 else if (idx
>= IWL_RATE_MIMO2_6M_PLCP
)
159 idx
= idx
- IWL_RATE_MIMO2_6M_PLCP
;
161 idx
+= IWL_FIRST_OFDM_RATE
;
162 /* skip 9M not supported in ht*/
163 if (idx
>= IWL_RATE_9M_INDEX
)
165 if ((idx
>= IWL_FIRST_OFDM_RATE
) && (idx
<= IWL_LAST_OFDM_RATE
))
168 /* legacy rate format, search for match in table */
170 for (idx
= 0; idx
< ARRAY_SIZE(iwl_rates
); idx
++)
171 if (iwl_rates
[idx
].plcp
== (rate_n_flags
& 0xFF))
177 EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx
);
179 int iwl_hwrate_to_mac80211_idx(u32 rate_n_flags
, enum ieee80211_band band
)
184 /* HT rate format: mac80211 wants an MCS number, which is just LSB */
185 if (rate_n_flags
& RATE_MCS_HT_MSK
) {
186 idx
= (rate_n_flags
& 0xff);
188 /* Legacy rate format, search for match in table */
190 if (band
== IEEE80211_BAND_5GHZ
)
191 band_offset
= IWL_FIRST_OFDM_RATE
;
192 for (idx
= band_offset
; idx
< IWL_RATE_COUNT_LEGACY
; idx
++)
193 if (iwl_rates
[idx
].plcp
== (rate_n_flags
& 0xFF))
194 return idx
- band_offset
;
200 u8
iwl_toggle_tx_ant(struct iwl_priv
*priv
, u8 ant
)
204 for (i
= 0; i
< RATE_ANT_NUM
- 1; i
++) {
205 ind
= (ind
+ 1) < RATE_ANT_NUM
? ind
+ 1 : 0;
206 if (priv
->hw_params
.valid_tx_ant
& BIT(ind
))
212 const u8 iwl_bcast_addr
[ETH_ALEN
] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
213 EXPORT_SYMBOL(iwl_bcast_addr
);
216 /* This function both allocates and initializes hw and priv. */
217 struct ieee80211_hw
*iwl_alloc_all(struct iwl_cfg
*cfg
,
218 struct ieee80211_ops
*hw_ops
)
220 struct iwl_priv
*priv
;
222 /* mac80211 allocates memory for this device instance, including
223 * space for this driver's private structure */
224 struct ieee80211_hw
*hw
=
225 ieee80211_alloc_hw(sizeof(struct iwl_priv
), hw_ops
);
227 printk(KERN_ERR
"%s: Can not allocate network device\n",
238 EXPORT_SYMBOL(iwl_alloc_all
);
240 void iwl_hw_detect(struct iwl_priv
*priv
)
242 priv
->hw_rev
= _iwl_read32(priv
, CSR_HW_REV
);
243 priv
->hw_wa_rev
= _iwl_read32(priv
, CSR_HW_REV_WA_REG
);
244 pci_read_config_byte(priv
->pci_dev
, PCI_REVISION_ID
, &priv
->rev_id
);
246 EXPORT_SYMBOL(iwl_hw_detect
);
248 int iwl_hw_nic_init(struct iwl_priv
*priv
)
251 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
255 spin_lock_irqsave(&priv
->lock
, flags
);
256 priv
->cfg
->ops
->lib
->apm_ops
.init(priv
);
257 iwl_write32(priv
, CSR_INT_COALESCING
, 512 / 32);
258 spin_unlock_irqrestore(&priv
->lock
, flags
);
260 ret
= priv
->cfg
->ops
->lib
->apm_ops
.set_pwr_src(priv
, IWL_PWR_SRC_VMAIN
);
262 priv
->cfg
->ops
->lib
->apm_ops
.config(priv
);
264 /* Allocate the RX queue, or reset if it is already allocated */
266 ret
= iwl_rx_queue_alloc(priv
);
268 IWL_ERR(priv
, "Unable to initialize Rx queue\n");
272 iwl_rx_queue_reset(priv
, rxq
);
274 iwl_rx_replenish(priv
);
276 iwl_rx_init(priv
, rxq
);
278 spin_lock_irqsave(&priv
->lock
, flags
);
280 rxq
->need_update
= 1;
281 iwl_rx_queue_update_write_ptr(priv
, rxq
);
283 spin_unlock_irqrestore(&priv
->lock
, flags
);
285 /* Allocate and init all Tx and Command queues */
286 ret
= iwl_txq_ctx_reset(priv
);
290 set_bit(STATUS_INIT
, &priv
->status
);
294 EXPORT_SYMBOL(iwl_hw_nic_init
);
299 void iwl_activate_qos(struct iwl_priv
*priv
, u8 force
)
301 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
304 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
306 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
307 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
308 priv
->qos_data
.def_qos_parm
.qos_flags
|=
309 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
310 if (priv
->qos_data
.qos_active
)
311 priv
->qos_data
.def_qos_parm
.qos_flags
|=
312 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
314 if (priv
->current_ht_config
.is_ht
)
315 priv
->qos_data
.def_qos_parm
.qos_flags
|= QOS_PARAM_FLG_TGN_MSK
;
317 if (force
|| iwl_is_associated(priv
)) {
318 IWL_DEBUG_QOS(priv
, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
319 priv
->qos_data
.qos_active
,
320 priv
->qos_data
.def_qos_parm
.qos_flags
);
322 iwl_send_cmd_pdu_async(priv
, REPLY_QOS_PARAM
,
323 sizeof(struct iwl_qosparam_cmd
),
324 &priv
->qos_data
.def_qos_parm
, NULL
);
327 EXPORT_SYMBOL(iwl_activate_qos
);
330 * AC CWmin CW max AIFSN TXOP Limit TXOP Limit
331 * (802.11b) (802.11a/g)
332 * AC_BK 15 1023 7 0 0
333 * AC_BE 15 1023 3 0 0
334 * AC_VI 7 15 2 6.016ms 3.008ms
335 * AC_VO 3 7 2 3.264ms 1.504ms
337 void iwl_reset_qos(struct iwl_priv
*priv
)
342 bool is_legacy
= false;
346 spin_lock_irqsave(&priv
->lock
, flags
);
347 /* QoS always active in AP and ADHOC mode
348 * In STA mode wait for association
350 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
||
351 priv
->iw_mode
== NL80211_IFTYPE_AP
)
352 priv
->qos_data
.qos_active
= 1;
354 priv
->qos_data
.qos_active
= 0;
356 /* check for legacy mode */
357 if ((priv
->iw_mode
== NL80211_IFTYPE_ADHOC
&&
358 (priv
->active_rate
& IWL_OFDM_RATES_MASK
) == 0) ||
359 (priv
->iw_mode
== NL80211_IFTYPE_STATION
&&
360 (priv
->staging_rxon
.flags
& RXON_FLG_SHORT_SLOT_MSK
) == 0)) {
365 if (priv
->qos_data
.qos_active
)
369 priv
->qos_data
.def_qos_parm
.ac
[0].cw_min
= cpu_to_le16(cw_min
);
370 priv
->qos_data
.def_qos_parm
.ac
[0].cw_max
= cpu_to_le16(cw_max
);
371 priv
->qos_data
.def_qos_parm
.ac
[0].aifsn
= aifs
;
372 priv
->qos_data
.def_qos_parm
.ac
[0].edca_txop
= 0;
373 priv
->qos_data
.def_qos_parm
.ac
[0].reserved1
= 0;
375 if (priv
->qos_data
.qos_active
) {
378 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
= cpu_to_le16(cw_min
);
379 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
= cpu_to_le16(cw_max
);
380 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 7;
381 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
382 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
386 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
387 cpu_to_le16((cw_min
+ 1) / 2 - 1);
388 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
390 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
392 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
395 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
397 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
401 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
402 cpu_to_le16((cw_min
+ 1) / 4 - 1);
403 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
404 cpu_to_le16((cw_min
+ 1) / 2 - 1);
405 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
406 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
408 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
411 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
414 for (i
= 1; i
< 4; i
++) {
415 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
417 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
419 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= aifs
;
420 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
421 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
424 IWL_DEBUG_QOS(priv
, "set QoS to default \n");
426 spin_unlock_irqrestore(&priv
->lock
, flags
);
428 EXPORT_SYMBOL(iwl_reset_qos
);
430 #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
431 #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
432 static void iwlcore_init_ht_hw_capab(const struct iwl_priv
*priv
,
433 struct ieee80211_sta_ht_cap
*ht_info
,
434 enum ieee80211_band band
)
436 u16 max_bit_rate
= 0;
437 u8 rx_chains_num
= priv
->hw_params
.rx_chains_num
;
438 u8 tx_chains_num
= priv
->hw_params
.tx_chains_num
;
441 memset(&ht_info
->mcs
, 0, sizeof(ht_info
->mcs
));
443 ht_info
->ht_supported
= true;
445 if (priv
->cfg
->ht_greenfield_support
)
446 ht_info
->cap
|= IEEE80211_HT_CAP_GRN_FLD
;
447 ht_info
->cap
|= IEEE80211_HT_CAP_SGI_20
;
448 if (priv
->cfg
->support_sm_ps
)
449 ht_info
->cap
|= (IEEE80211_HT_CAP_SM_PS
&
450 (WLAN_HT_CAP_SM_PS_DYNAMIC
<< 2));
452 ht_info
->cap
|= (IEEE80211_HT_CAP_SM_PS
&
453 (WLAN_HT_CAP_SM_PS_DISABLED
<< 2));
455 max_bit_rate
= MAX_BIT_RATE_20_MHZ
;
456 if (priv
->hw_params
.ht40_channel
& BIT(band
)) {
457 ht_info
->cap
|= IEEE80211_HT_CAP_SUP_WIDTH_20_40
;
458 ht_info
->cap
|= IEEE80211_HT_CAP_SGI_40
;
459 ht_info
->mcs
.rx_mask
[4] = 0x01;
460 max_bit_rate
= MAX_BIT_RATE_40_MHZ
;
463 if (priv
->cfg
->mod_params
->amsdu_size_8K
)
464 ht_info
->cap
|= IEEE80211_HT_CAP_MAX_AMSDU
;
466 ht_info
->ampdu_factor
= CFG_HT_RX_AMPDU_FACTOR_DEF
;
467 ht_info
->ampdu_density
= CFG_HT_MPDU_DENSITY_DEF
;
469 ht_info
->mcs
.rx_mask
[0] = 0xFF;
470 if (rx_chains_num
>= 2)
471 ht_info
->mcs
.rx_mask
[1] = 0xFF;
472 if (rx_chains_num
>= 3)
473 ht_info
->mcs
.rx_mask
[2] = 0xFF;
475 /* Highest supported Rx data rate */
476 max_bit_rate
*= rx_chains_num
;
477 WARN_ON(max_bit_rate
& ~IEEE80211_HT_MCS_RX_HIGHEST_MASK
);
478 ht_info
->mcs
.rx_highest
= cpu_to_le16(max_bit_rate
);
480 /* Tx MCS capabilities */
481 ht_info
->mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
482 if (tx_chains_num
!= rx_chains_num
) {
483 ht_info
->mcs
.tx_params
|= IEEE80211_HT_MCS_TX_RX_DIFF
;
484 ht_info
->mcs
.tx_params
|= ((tx_chains_num
- 1) <<
485 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
);
490 * iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom
492 int iwlcore_init_geos(struct iwl_priv
*priv
)
494 struct iwl_channel_info
*ch
;
495 struct ieee80211_supported_band
*sband
;
496 struct ieee80211_channel
*channels
;
497 struct ieee80211_channel
*geo_ch
;
498 struct ieee80211_rate
*rates
;
501 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
502 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
503 IWL_DEBUG_INFO(priv
, "Geography modes already initialized.\n");
504 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
508 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
509 priv
->channel_count
, GFP_KERNEL
);
513 rates
= kzalloc((sizeof(struct ieee80211_rate
) * IWL_RATE_COUNT_LEGACY
),
520 /* 5.2GHz channels start after the 2.4GHz channels */
521 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
522 sband
->channels
= &channels
[ARRAY_SIZE(iwl_eeprom_band_1
)];
524 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
525 sband
->n_bitrates
= IWL_RATE_COUNT_LEGACY
- IWL_FIRST_OFDM_RATE
;
527 if (priv
->cfg
->sku
& IWL_SKU_N
)
528 iwlcore_init_ht_hw_capab(priv
, &sband
->ht_cap
,
529 IEEE80211_BAND_5GHZ
);
531 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
532 sband
->channels
= channels
;
534 sband
->bitrates
= rates
;
535 sband
->n_bitrates
= IWL_RATE_COUNT_LEGACY
;
537 if (priv
->cfg
->sku
& IWL_SKU_N
)
538 iwlcore_init_ht_hw_capab(priv
, &sband
->ht_cap
,
539 IEEE80211_BAND_2GHZ
);
541 priv
->ieee_channels
= channels
;
542 priv
->ieee_rates
= rates
;
544 for (i
= 0; i
< priv
->channel_count
; i
++) {
545 ch
= &priv
->channel_info
[i
];
547 /* FIXME: might be removed if scan is OK */
548 if (!is_channel_valid(ch
))
551 if (is_channel_a_band(ch
))
552 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
554 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
556 geo_ch
= &sband
->channels
[sband
->n_channels
++];
558 geo_ch
->center_freq
=
559 ieee80211_channel_to_frequency(ch
->channel
);
560 geo_ch
->max_power
= ch
->max_power_avg
;
561 geo_ch
->max_antenna_gain
= 0xff;
562 geo_ch
->hw_value
= ch
->channel
;
564 if (is_channel_valid(ch
)) {
565 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
566 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
568 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
569 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
571 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
572 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
574 geo_ch
->flags
|= ch
->ht40_extension_channel
;
576 if (ch
->max_power_avg
> priv
->tx_power_device_lmt
)
577 priv
->tx_power_device_lmt
= ch
->max_power_avg
;
579 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
582 IWL_DEBUG_INFO(priv
, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n",
583 ch
->channel
, geo_ch
->center_freq
,
584 is_channel_a_band(ch
) ? "5.2" : "2.4",
585 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
586 "restricted" : "valid",
590 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) &&
591 priv
->cfg
->sku
& IWL_SKU_A
) {
592 IWL_INFO(priv
, "Incorrectly detected BG card as ABG. "
593 "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
594 priv
->pci_dev
->device
,
595 priv
->pci_dev
->subsystem_device
);
596 priv
->cfg
->sku
&= ~IWL_SKU_A
;
599 IWL_INFO(priv
, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
600 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
601 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
603 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
607 EXPORT_SYMBOL(iwlcore_init_geos
);
610 * iwlcore_free_geos - undo allocations in iwlcore_init_geos
612 void iwlcore_free_geos(struct iwl_priv
*priv
)
614 kfree(priv
->ieee_channels
);
615 kfree(priv
->ieee_rates
);
616 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
618 EXPORT_SYMBOL(iwlcore_free_geos
);
621 * iwlcore_rts_tx_cmd_flag: Set rts/cts. 3945 and 4965 only share this
624 void iwlcore_rts_tx_cmd_flag(struct ieee80211_tx_info
*info
,
627 if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_USE_RTS_CTS
) {
628 *tx_flags
|= TX_CMD_FLG_RTS_MSK
;
629 *tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
630 } else if (info
->control
.rates
[0].flags
& IEEE80211_TX_RC_USE_CTS_PROTECT
) {
631 *tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
632 *tx_flags
|= TX_CMD_FLG_CTS_MSK
;
635 EXPORT_SYMBOL(iwlcore_rts_tx_cmd_flag
);
637 static bool is_single_rx_stream(struct iwl_priv
*priv
)
639 return !priv
->current_ht_config
.is_ht
||
640 priv
->current_ht_config
.single_chain_sufficient
;
643 static u8
iwl_is_channel_extension(struct iwl_priv
*priv
,
644 enum ieee80211_band band
,
645 u16 channel
, u8 extension_chan_offset
)
647 const struct iwl_channel_info
*ch_info
;
649 ch_info
= iwl_get_channel_info(priv
, band
, channel
);
650 if (!is_channel_valid(ch_info
))
653 if (extension_chan_offset
== IEEE80211_HT_PARAM_CHA_SEC_ABOVE
)
654 return !(ch_info
->ht40_extension_channel
&
655 IEEE80211_CHAN_NO_HT40PLUS
);
656 else if (extension_chan_offset
== IEEE80211_HT_PARAM_CHA_SEC_BELOW
)
657 return !(ch_info
->ht40_extension_channel
&
658 IEEE80211_CHAN_NO_HT40MINUS
);
663 u8
iwl_is_ht40_tx_allowed(struct iwl_priv
*priv
,
664 struct ieee80211_sta_ht_cap
*sta_ht_inf
)
666 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
668 if (!ht_conf
->is_ht
|| !ht_conf
->is_40mhz
)
671 /* We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40
672 * the bit will not set if it is pure 40MHz case
675 if (!sta_ht_inf
->ht_supported
)
678 #ifdef CONFIG_IWLWIFI_DEBUG
679 if (priv
->disable_ht40
)
682 return iwl_is_channel_extension(priv
, priv
->band
,
683 le16_to_cpu(priv
->staging_rxon
.channel
),
684 ht_conf
->extension_chan_offset
);
686 EXPORT_SYMBOL(iwl_is_ht40_tx_allowed
);
688 static u16
iwl_adjust_beacon_interval(u16 beacon_val
, u16 max_beacon_val
)
691 u16 beacon_factor
= 0;
693 beacon_factor
= (beacon_val
+ max_beacon_val
) / max_beacon_val
;
694 new_val
= beacon_val
/ beacon_factor
;
697 new_val
= max_beacon_val
;
702 void iwl_setup_rxon_timing(struct iwl_priv
*priv
)
705 s32 interval_tm
, rem
;
707 struct ieee80211_conf
*conf
= NULL
;
710 conf
= ieee80211_get_hw_conf(priv
->hw
);
712 spin_lock_irqsave(&priv
->lock
, flags
);
713 priv
->rxon_timing
.timestamp
= cpu_to_le64(priv
->timestamp
);
714 priv
->rxon_timing
.listen_interval
= cpu_to_le16(conf
->listen_interval
);
716 if (priv
->iw_mode
== NL80211_IFTYPE_STATION
) {
717 beacon_int
= priv
->beacon_int
;
718 priv
->rxon_timing
.atim_window
= 0;
720 beacon_int
= priv
->vif
->bss_conf
.beacon_int
;
722 /* TODO: we need to get atim_window from upper stack
723 * for now we set to 0 */
724 priv
->rxon_timing
.atim_window
= 0;
727 beacon_int
= iwl_adjust_beacon_interval(beacon_int
,
728 priv
->hw_params
.max_beacon_itrvl
* 1024);
729 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(beacon_int
);
731 tsf
= priv
->timestamp
; /* tsf is modifed by do_div: copy it */
732 interval_tm
= beacon_int
* 1024;
733 rem
= do_div(tsf
, interval_tm
);
734 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(interval_tm
- rem
);
736 spin_unlock_irqrestore(&priv
->lock
, flags
);
737 IWL_DEBUG_ASSOC(priv
,
738 "beacon interval %d beacon timer %d beacon tim %d\n",
739 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
740 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
741 le16_to_cpu(priv
->rxon_timing
.atim_window
));
743 EXPORT_SYMBOL(iwl_setup_rxon_timing
);
745 void iwl_set_rxon_hwcrypto(struct iwl_priv
*priv
, int hw_decrypt
)
747 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
750 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
752 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
755 EXPORT_SYMBOL(iwl_set_rxon_hwcrypto
);
758 * iwl_check_rxon_cmd - validate RXON structure is valid
760 * NOTE: This is really only useful during development and can eventually
761 * be #ifdef'd out once the driver is stable and folks aren't actively
764 int iwl_check_rxon_cmd(struct iwl_priv
*priv
)
768 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
770 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
771 error
|= le32_to_cpu(rxon
->flags
&
772 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
773 RXON_FLG_RADAR_DETECT_MSK
));
775 IWL_WARN(priv
, "check 24G fields %d | %d\n",
778 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
779 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
781 IWL_WARN(priv
, "check 52 fields %d | %d\n",
783 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
785 IWL_WARN(priv
, "check 52 CCK %d | %d\n",
788 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
790 IWL_WARN(priv
, "check mac addr %d | %d\n", counter
++, error
);
792 /* make sure basic rates 6Mbps and 1Mbps are supported */
793 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
794 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
796 IWL_WARN(priv
, "check basic rate %d | %d\n", counter
++, error
);
798 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
800 IWL_WARN(priv
, "check assoc id %d | %d\n", counter
++, error
);
802 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
803 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
805 IWL_WARN(priv
, "check CCK and short slot %d | %d\n",
808 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
809 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
811 IWL_WARN(priv
, "check CCK & auto detect %d | %d\n",
814 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
815 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
817 IWL_WARN(priv
, "check TGG and auto detect %d | %d\n",
821 IWL_WARN(priv
, "Tuning to channel %d\n",
822 le16_to_cpu(rxon
->channel
));
825 IWL_ERR(priv
, "Not a valid iwl_rxon_assoc_cmd field values\n");
830 EXPORT_SYMBOL(iwl_check_rxon_cmd
);
833 * iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
834 * @priv: staging_rxon is compared to active_rxon
836 * If the RXON structure is changing enough to require a new tune,
837 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
838 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
840 int iwl_full_rxon_required(struct iwl_priv
*priv
)
843 /* These items are only settable from the full RXON command */
844 if (!(iwl_is_associated(priv
)) ||
845 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
846 priv
->active_rxon
.bssid_addr
) ||
847 compare_ether_addr(priv
->staging_rxon
.node_addr
,
848 priv
->active_rxon
.node_addr
) ||
849 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
850 priv
->active_rxon
.wlap_bssid_addr
) ||
851 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
852 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
853 (priv
->staging_rxon
.air_propagation
!=
854 priv
->active_rxon
.air_propagation
) ||
855 (priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
!=
856 priv
->active_rxon
.ofdm_ht_single_stream_basic_rates
) ||
857 (priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
!=
858 priv
->active_rxon
.ofdm_ht_dual_stream_basic_rates
) ||
859 (priv
->staging_rxon
.ofdm_ht_triple_stream_basic_rates
!=
860 priv
->active_rxon
.ofdm_ht_triple_stream_basic_rates
) ||
861 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
864 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
865 * be updated with the RXON_ASSOC command -- however only some
866 * flag transitions are allowed using RXON_ASSOC */
868 /* Check if we are not switching bands */
869 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
870 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
873 /* Check if we are switching association toggle */
874 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
875 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
880 EXPORT_SYMBOL(iwl_full_rxon_required
);
882 u8
iwl_rate_get_lowest_plcp(struct iwl_priv
*priv
)
888 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
889 rate_mask
= priv
->active_rate_basic
& IWL_CCK_RATES_MASK
;
891 rate_mask
= priv
->active_rate_basic
& IWL_OFDM_RATES_MASK
;
893 /* Find lowest valid rate */
894 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
895 i
= iwl_rates
[i
].next_ieee
) {
896 if (rate_mask
& (1 << i
))
897 return iwl_rates
[i
].plcp
;
900 /* No valid rate was found. Assign the lowest one */
901 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
902 return IWL_RATE_1M_PLCP
;
904 return IWL_RATE_6M_PLCP
;
906 EXPORT_SYMBOL(iwl_rate_get_lowest_plcp
);
908 void iwl_set_rxon_ht(struct iwl_priv
*priv
, struct iwl_ht_config
*ht_conf
)
910 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
912 if (!ht_conf
->is_ht
) {
913 rxon
->flags
&= ~(RXON_FLG_CHANNEL_MODE_MSK
|
914 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
|
915 RXON_FLG_HT40_PROT_MSK
|
916 RXON_FLG_HT_PROT_MSK
);
920 /* FIXME: if the definition of ht_protection changed, the "translation"
921 * will be needed for rxon->flags
923 rxon
->flags
|= cpu_to_le32(ht_conf
->ht_protection
<< RXON_FLG_HT_OPERATING_MODE_POS
);
925 /* Set up channel bandwidth:
926 * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */
927 /* clear the HT channel mode before set the mode */
928 rxon
->flags
&= ~(RXON_FLG_CHANNEL_MODE_MSK
|
929 RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
);
930 if (iwl_is_ht40_tx_allowed(priv
, NULL
)) {
932 if (ht_conf
->ht_protection
== IEEE80211_HT_OP_MODE_PROTECTION_20MHZ
) {
933 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_PURE_40
;
934 /* Note: control channel is opposite of extension channel */
935 switch (ht_conf
->extension_chan_offset
) {
936 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE
:
937 rxon
->flags
&= ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
;
939 case IEEE80211_HT_PARAM_CHA_SEC_BELOW
:
940 rxon
->flags
|= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
;
944 /* Note: control channel is opposite of extension channel */
945 switch (ht_conf
->extension_chan_offset
) {
946 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE
:
947 rxon
->flags
&= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
);
948 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_MIXED
;
950 case IEEE80211_HT_PARAM_CHA_SEC_BELOW
:
951 rxon
->flags
|= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK
;
952 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_MIXED
;
954 case IEEE80211_HT_PARAM_CHA_SEC_NONE
:
956 /* channel location only valid if in Mixed mode */
957 IWL_ERR(priv
, "invalid extension channel offset\n");
962 rxon
->flags
|= RXON_FLG_CHANNEL_MODE_LEGACY
;
965 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
966 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
968 IWL_DEBUG_ASSOC(priv
, "rxon flags 0x%X operation mode :0x%X "
969 "extension channel offset 0x%x\n",
970 le32_to_cpu(rxon
->flags
), ht_conf
->ht_protection
,
971 ht_conf
->extension_chan_offset
);
974 EXPORT_SYMBOL(iwl_set_rxon_ht
);
976 #define IWL_NUM_RX_CHAINS_MULTIPLE 3
977 #define IWL_NUM_RX_CHAINS_SINGLE 2
978 #define IWL_NUM_IDLE_CHAINS_DUAL 2
979 #define IWL_NUM_IDLE_CHAINS_SINGLE 1
982 * Determine how many receiver/antenna chains to use.
984 * More provides better reception via diversity. Fewer saves power
985 * at the expense of throughput, but only when not in powersave to
988 * MIMO (dual stream) requires at least 2, but works better with 3.
989 * This does not determine *which* chains to use, just how many.
991 static int iwl_get_active_rx_chain_count(struct iwl_priv
*priv
)
993 /* # of Rx chains to use when expecting MIMO. */
994 if (is_single_rx_stream(priv
))
995 return IWL_NUM_RX_CHAINS_SINGLE
;
997 return IWL_NUM_RX_CHAINS_MULTIPLE
;
1001 * When we are in power saving mode, unless device support spatial
1002 * multiplexing power save, use the active count for rx chain count.
1004 static int iwl_get_idle_rx_chain_count(struct iwl_priv
*priv
, int active_cnt
)
1006 int idle_cnt
= active_cnt
;
1007 bool is_cam
= !test_bit(STATUS_POWER_PMI
, &priv
->status
);
1009 if (priv
->cfg
->support_sm_ps
) {
1010 /* # Rx chains when idling and maybe trying to save power */
1011 switch (priv
->current_ht_config
.sm_ps
) {
1012 case WLAN_HT_CAP_SM_PS_STATIC
:
1013 case WLAN_HT_CAP_SM_PS_DYNAMIC
:
1014 idle_cnt
= (is_cam
) ? IWL_NUM_IDLE_CHAINS_DUAL
:
1015 IWL_NUM_IDLE_CHAINS_SINGLE
;
1017 case WLAN_HT_CAP_SM_PS_DISABLED
:
1018 idle_cnt
= (is_cam
) ? active_cnt
:
1019 IWL_NUM_IDLE_CHAINS_SINGLE
;
1021 case WLAN_HT_CAP_SM_PS_INVALID
:
1023 IWL_ERR(priv
, "invalid sm_ps mode %d\n",
1024 priv
->current_ht_config
.sm_ps
);
1032 /* up to 4 chains */
1033 static u8
iwl_count_chain_bitmap(u32 chain_bitmap
)
1036 res
= (chain_bitmap
& BIT(0)) >> 0;
1037 res
+= (chain_bitmap
& BIT(1)) >> 1;
1038 res
+= (chain_bitmap
& BIT(2)) >> 2;
1039 res
+= (chain_bitmap
& BIT(3)) >> 3;
1044 * iwl_is_monitor_mode - Determine if interface in monitor mode
1046 * priv->iw_mode is set in add_interface, but add_interface is
1047 * never called for monitor mode. The only way mac80211 informs us about
1048 * monitor mode is through configuring filters (call to configure_filter).
1050 bool iwl_is_monitor_mode(struct iwl_priv
*priv
)
1052 return !!(priv
->staging_rxon
.filter_flags
& RXON_FILTER_PROMISC_MSK
);
1054 EXPORT_SYMBOL(iwl_is_monitor_mode
);
1057 * iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
1059 * Selects how many and which Rx receivers/antennas/chains to use.
1060 * This should not be used for scan command ... it puts data in wrong place.
1062 void iwl_set_rxon_chain(struct iwl_priv
*priv
)
1064 bool is_single
= is_single_rx_stream(priv
);
1065 bool is_cam
= !test_bit(STATUS_POWER_PMI
, &priv
->status
);
1066 u8 idle_rx_cnt
, active_rx_cnt
, valid_rx_cnt
;
1070 /* Tell uCode which antennas are actually connected.
1071 * Before first association, we assume all antennas are connected.
1072 * Just after first association, iwl_chain_noise_calibration()
1073 * checks which antennas actually *are* connected. */
1074 if (priv
->chain_noise_data
.active_chains
)
1075 active_chains
= priv
->chain_noise_data
.active_chains
;
1077 active_chains
= priv
->hw_params
.valid_rx_ant
;
1079 rx_chain
= active_chains
<< RXON_RX_CHAIN_VALID_POS
;
1081 /* How many receivers should we use? */
1082 active_rx_cnt
= iwl_get_active_rx_chain_count(priv
);
1083 idle_rx_cnt
= iwl_get_idle_rx_chain_count(priv
, active_rx_cnt
);
1086 /* correct rx chain count according hw settings
1087 * and chain noise calibration
1089 valid_rx_cnt
= iwl_count_chain_bitmap(active_chains
);
1090 if (valid_rx_cnt
< active_rx_cnt
)
1091 active_rx_cnt
= valid_rx_cnt
;
1093 if (valid_rx_cnt
< idle_rx_cnt
)
1094 idle_rx_cnt
= valid_rx_cnt
;
1096 rx_chain
|= active_rx_cnt
<< RXON_RX_CHAIN_MIMO_CNT_POS
;
1097 rx_chain
|= idle_rx_cnt
<< RXON_RX_CHAIN_CNT_POS
;
1099 /* copied from 'iwl_bg_request_scan()' */
1100 /* Force use of chains B and C (0x6) for Rx for 4965
1101 * Avoid A (0x1) because of its off-channel reception on A-band.
1102 * MIMO is not used here, but value is required */
1103 if (iwl_is_monitor_mode(priv
) &&
1104 !(priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) &&
1105 ((priv
->hw_rev
& CSR_HW_REV_TYPE_MSK
) == CSR_HW_REV_TYPE_4965
)) {
1106 rx_chain
= ANT_ABC
<< RXON_RX_CHAIN_VALID_POS
;
1107 rx_chain
|= ANT_BC
<< RXON_RX_CHAIN_FORCE_SEL_POS
;
1108 rx_chain
|= ANT_ABC
<< RXON_RX_CHAIN_FORCE_MIMO_SEL_POS
;
1109 rx_chain
|= 0x1 << RXON_RX_CHAIN_DRIVER_FORCE_POS
;
1112 priv
->staging_rxon
.rx_chain
= cpu_to_le16(rx_chain
);
1114 if (!is_single
&& (active_rx_cnt
>= IWL_NUM_RX_CHAINS_SINGLE
) && is_cam
)
1115 priv
->staging_rxon
.rx_chain
|= RXON_RX_CHAIN_MIMO_FORCE_MSK
;
1117 priv
->staging_rxon
.rx_chain
&= ~RXON_RX_CHAIN_MIMO_FORCE_MSK
;
1119 IWL_DEBUG_ASSOC(priv
, "rx_chain=0x%X active=%d idle=%d\n",
1120 priv
->staging_rxon
.rx_chain
,
1121 active_rx_cnt
, idle_rx_cnt
);
1123 WARN_ON(active_rx_cnt
== 0 || idle_rx_cnt
== 0 ||
1124 active_rx_cnt
< idle_rx_cnt
);
1126 EXPORT_SYMBOL(iwl_set_rxon_chain
);
1129 * iwl_set_rxon_channel - Set the phymode and channel values in staging RXON
1130 * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
1131 * @channel: Any channel valid for the requested phymode
1133 * In addition to setting the staging RXON, priv->phymode is also set.
1135 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
1136 * in the staging RXON flag structure based on the phymode
1138 int iwl_set_rxon_channel(struct iwl_priv
*priv
, struct ieee80211_channel
*ch
)
1140 enum ieee80211_band band
= ch
->band
;
1141 u16 channel
= ieee80211_frequency_to_channel(ch
->center_freq
);
1143 if (!iwl_get_channel_info(priv
, band
, channel
)) {
1144 IWL_DEBUG_INFO(priv
, "Could not set channel to %d [%d]\n",
1149 if ((le16_to_cpu(priv
->staging_rxon
.channel
) == channel
) &&
1150 (priv
->band
== band
))
1153 priv
->staging_rxon
.channel
= cpu_to_le16(channel
);
1154 if (band
== IEEE80211_BAND_5GHZ
)
1155 priv
->staging_rxon
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
1157 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
1161 IWL_DEBUG_INFO(priv
, "Staging channel set to %d [%d]\n", channel
, band
);
1165 EXPORT_SYMBOL(iwl_set_rxon_channel
);
1167 void iwl_set_flags_for_band(struct iwl_priv
*priv
,
1168 enum ieee80211_band band
)
1170 if (band
== IEEE80211_BAND_5GHZ
) {
1171 priv
->staging_rxon
.flags
&=
1172 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
1173 | RXON_FLG_CCK_MSK
);
1174 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1176 /* Copied from iwl_post_associate() */
1177 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
1178 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1180 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1182 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
1183 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1185 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
1186 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
1187 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
1192 * initialize rxon structure with default values from eeprom
1194 void iwl_connection_init_rx_config(struct iwl_priv
*priv
, int mode
)
1196 const struct iwl_channel_info
*ch_info
;
1198 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
1201 case NL80211_IFTYPE_AP
:
1202 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
1205 case NL80211_IFTYPE_STATION
:
1206 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
1207 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
1210 case NL80211_IFTYPE_ADHOC
:
1211 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
1212 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
1213 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
1214 RXON_FILTER_ACCEPT_GRP_MSK
;
1218 IWL_ERR(priv
, "Unsupported interface type %d\n", mode
);
1223 /* TODO: Figure out when short_preamble would be set and cache from
1225 if (!hw_to_local(priv
->hw
)->short_preamble
)
1226 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
1228 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
1231 ch_info
= iwl_get_channel_info(priv
, priv
->band
,
1232 le16_to_cpu(priv
->active_rxon
.channel
));
1235 ch_info
= &priv
->channel_info
[0];
1238 * in some case A channels are all non IBSS
1239 * in this case force B/G channel
1241 if ((priv
->iw_mode
== NL80211_IFTYPE_ADHOC
) &&
1242 !(is_channel_ibss(ch_info
)))
1243 ch_info
= &priv
->channel_info
[0];
1245 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
1246 priv
->band
= ch_info
->band
;
1248 iwl_set_flags_for_band(priv
, priv
->band
);
1250 priv
->staging_rxon
.ofdm_basic_rates
=
1251 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
1252 priv
->staging_rxon
.cck_basic_rates
=
1253 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
1255 /* clear both MIX and PURE40 mode flag */
1256 priv
->staging_rxon
.flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED
|
1257 RXON_FLG_CHANNEL_MODE_PURE_40
);
1258 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
1259 memcpy(priv
->staging_rxon
.wlap_bssid_addr
, priv
->mac_addr
, ETH_ALEN
);
1260 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
= 0xff;
1261 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
= 0xff;
1262 priv
->staging_rxon
.ofdm_ht_triple_stream_basic_rates
= 0xff;
1264 EXPORT_SYMBOL(iwl_connection_init_rx_config
);
1266 static void iwl_set_rate(struct iwl_priv
*priv
)
1268 const struct ieee80211_supported_band
*hw
= NULL
;
1269 struct ieee80211_rate
*rate
;
1272 hw
= iwl_get_hw_mode(priv
, priv
->band
);
1274 IWL_ERR(priv
, "Failed to set rate: unable to get hw mode\n");
1278 priv
->active_rate
= 0;
1279 priv
->active_rate_basic
= 0;
1281 for (i
= 0; i
< hw
->n_bitrates
; i
++) {
1282 rate
= &(hw
->bitrates
[i
]);
1283 if (rate
->hw_value
< IWL_RATE_COUNT_LEGACY
)
1284 priv
->active_rate
|= (1 << rate
->hw_value
);
1287 IWL_DEBUG_RATE(priv
, "Set active_rate = %0x, active_rate_basic = %0x\n",
1288 priv
->active_rate
, priv
->active_rate_basic
);
1291 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
1292 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
1295 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
1296 priv
->staging_rxon
.cck_basic_rates
=
1297 ((priv
->active_rate_basic
&
1298 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
1300 priv
->staging_rxon
.cck_basic_rates
=
1301 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
1303 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
1304 priv
->staging_rxon
.ofdm_basic_rates
=
1305 ((priv
->active_rate_basic
&
1306 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
1307 IWL_FIRST_OFDM_RATE
) & 0xFF;
1309 priv
->staging_rxon
.ofdm_basic_rates
=
1310 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
1313 void iwl_rx_csa(struct iwl_priv
*priv
, struct iwl_rx_mem_buffer
*rxb
)
1315 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
1316 struct iwl_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
1317 struct iwl_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
1319 if (!le32_to_cpu(csa
->status
)) {
1320 rxon
->channel
= csa
->channel
;
1321 priv
->staging_rxon
.channel
= csa
->channel
;
1322 IWL_DEBUG_11H(priv
, "CSA notif: channel %d\n",
1323 le16_to_cpu(csa
->channel
));
1325 IWL_ERR(priv
, "CSA notif (fail) : channel %d\n",
1326 le16_to_cpu(csa
->channel
));
1328 EXPORT_SYMBOL(iwl_rx_csa
);
1330 #ifdef CONFIG_IWLWIFI_DEBUG
1331 void iwl_print_rx_config_cmd(struct iwl_priv
*priv
)
1333 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
1335 IWL_DEBUG_RADIO(priv
, "RX CONFIG:\n");
1336 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
1337 IWL_DEBUG_RADIO(priv
, "u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
1338 IWL_DEBUG_RADIO(priv
, "u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
1339 IWL_DEBUG_RADIO(priv
, "u32 filter_flags: 0x%08x\n",
1340 le32_to_cpu(rxon
->filter_flags
));
1341 IWL_DEBUG_RADIO(priv
, "u8 dev_type: 0x%x\n", rxon
->dev_type
);
1342 IWL_DEBUG_RADIO(priv
, "u8 ofdm_basic_rates: 0x%02x\n",
1343 rxon
->ofdm_basic_rates
);
1344 IWL_DEBUG_RADIO(priv
, "u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
1345 IWL_DEBUG_RADIO(priv
, "u8[6] node_addr: %pM\n", rxon
->node_addr
);
1346 IWL_DEBUG_RADIO(priv
, "u8[6] bssid_addr: %pM\n", rxon
->bssid_addr
);
1347 IWL_DEBUG_RADIO(priv
, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
1349 EXPORT_SYMBOL(iwl_print_rx_config_cmd
);
1352 * iwl_irq_handle_error - called for HW or SW error interrupt from card
1354 void iwl_irq_handle_error(struct iwl_priv
*priv
)
1356 /* Set the FW error flag -- cleared on iwl_down */
1357 set_bit(STATUS_FW_ERROR
, &priv
->status
);
1359 /* Cancel currently queued command. */
1360 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
1362 #ifdef CONFIG_IWLWIFI_DEBUG
1363 if (iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) {
1364 priv
->cfg
->ops
->lib
->dump_nic_error_log(priv
);
1365 priv
->cfg
->ops
->lib
->dump_nic_event_log(priv
);
1366 iwl_print_rx_config_cmd(priv
);
1370 wake_up_interruptible(&priv
->wait_command_queue
);
1372 /* Keep the restart process from trying to send host
1373 * commands by clearing the INIT status bit */
1374 clear_bit(STATUS_READY
, &priv
->status
);
1376 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
1377 IWL_DEBUG(priv
, IWL_DL_FW_ERRORS
,
1378 "Restarting adapter due to uCode error.\n");
1380 if (priv
->cfg
->mod_params
->restart_fw
)
1381 queue_work(priv
->workqueue
, &priv
->restart
);
1384 EXPORT_SYMBOL(iwl_irq_handle_error
);
1386 int iwl_apm_stop_master(struct iwl_priv
*priv
)
1390 /* stop device's busmaster DMA activity */
1391 iwl_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_STOP_MASTER
);
1393 ret
= iwl_poll_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_MASTER_DISABLED
,
1394 CSR_RESET_REG_FLAG_MASTER_DISABLED
, 100);
1396 IWL_WARN(priv
, "Master Disable Timed Out, 100 usec\n");
1398 IWL_DEBUG_INFO(priv
, "stop master\n");
1402 EXPORT_SYMBOL(iwl_apm_stop_master
);
1404 void iwl_apm_stop(struct iwl_priv
*priv
)
1406 IWL_DEBUG_INFO(priv
, "Stop card, put in low power state\n");
1408 /* Stop device's DMA activity */
1409 iwl_apm_stop_master(priv
);
1411 /* Reset the entire device */
1412 iwl_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
1417 * Clear "initialization complete" bit to move adapter from
1418 * D0A* (powered-up Active) --> D0U* (Uninitialized) state.
1420 iwl_clear_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
1422 EXPORT_SYMBOL(iwl_apm_stop
);
1426 * Start up NIC's basic functionality after it has been reset
1427 * (e.g. after platform boot, or shutdown via iwl_apm_stop())
1428 * NOTE: This does not load uCode nor start the embedded processor
1430 int iwl_apm_init(struct iwl_priv
*priv
)
1435 IWL_DEBUG_INFO(priv
, "Init card's basic functions\n");
1438 * Use "set_bit" below rather than "write", to preserve any hardware
1439 * bits already set by default after reset.
1442 /* Disable L0S exit timer (platform NMI Work/Around) */
1443 iwl_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
1444 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER
);
1447 * Disable L0s without affecting L1;
1448 * don't wait for ICH L0s (ICH bug W/A)
1450 iwl_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
1451 CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX
);
1453 /* Set FH wait threshold to maximum (HW error during stress W/A) */
1454 iwl_set_bit(priv
, CSR_DBG_HPET_MEM_REG
, CSR_DBG_HPET_MEM_REG_VAL
);
1457 * Enable HAP INTA (interrupt from management bus) to
1458 * wake device's PCI Express link L1a -> L0s
1459 * NOTE: This is no-op for 3945 (non-existant bit)
1461 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
1462 CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A
);
1465 * HW bug W/A for instability in PCIe bus L0->L0S->L1 transition.
1466 * Check if BIOS (or OS) enabled L1-ASPM on this device.
1467 * If so (likely), disable L0S, so device moves directly L0->L1;
1468 * costs negligible amount of power savings.
1469 * If not (unlikely), enable L0S, so there is at least some
1470 * power savings, even without L1.
1472 if (priv
->cfg
->set_l0s
) {
1473 lctl
= iwl_pcie_link_ctl(priv
);
1474 if ((lctl
& PCI_CFG_LINK_CTRL_VAL_L1_EN
) ==
1475 PCI_CFG_LINK_CTRL_VAL_L1_EN
) {
1476 /* L1-ASPM enabled; disable(!) L0S */
1477 iwl_set_bit(priv
, CSR_GIO_REG
,
1478 CSR_GIO_REG_VAL_L0S_ENABLED
);
1479 IWL_DEBUG_POWER(priv
, "L1 Enabled; Disabling L0S\n");
1481 /* L1-ASPM disabled; enable(!) L0S */
1482 iwl_clear_bit(priv
, CSR_GIO_REG
,
1483 CSR_GIO_REG_VAL_L0S_ENABLED
);
1484 IWL_DEBUG_POWER(priv
, "L1 Disabled; Enabling L0S\n");
1488 /* Configure analog phase-lock-loop before activating to D0A */
1489 if (priv
->cfg
->pll_cfg_val
)
1490 iwl_set_bit(priv
, CSR_ANA_PLL_CFG
, priv
->cfg
->pll_cfg_val
);
1493 * Set "initialization complete" bit to move adapter from
1494 * D0U* --> D0A* (powered-up active) state.
1496 iwl_set_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
1499 * Wait for clock stabilization; once stabilized, access to
1500 * device-internal resources is supported, e.g. iwl_write_prph()
1501 * and accesses to uCode SRAM.
1503 ret
= iwl_poll_bit(priv
, CSR_GP_CNTRL
,
1504 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
,
1505 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
, 25000);
1507 IWL_DEBUG_INFO(priv
, "Failed to init the card\n");
1512 * Enable DMA and BSM (if used) clocks, wait for them to stabilize.
1513 * BSM (Boostrap State Machine) is only in 3945 and 4965;
1514 * later devices (i.e. 5000 and later) have non-volatile SRAM,
1515 * and don't need BSM to restore data after power-saving sleep.
1517 * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits
1518 * do not disable clocks. This preserves any hardware bits already
1519 * set by default in "CLK_CTRL_REG" after reset.
1521 if (priv
->cfg
->use_bsm
)
1522 iwl_write_prph(priv
, APMG_CLK_EN_REG
,
1523 APMG_CLK_VAL_DMA_CLK_RQT
| APMG_CLK_VAL_BSM_CLK_RQT
);
1525 iwl_write_prph(priv
, APMG_CLK_EN_REG
,
1526 APMG_CLK_VAL_DMA_CLK_RQT
);
1529 /* Disable L1-Active */
1530 iwl_set_bits_prph(priv
, APMG_PCIDEV_STT_REG
,
1531 APMG_PCIDEV_STT_VAL_L1_ACT_DIS
);
1536 EXPORT_SYMBOL(iwl_apm_init
);
1540 void iwl_configure_filter(struct ieee80211_hw
*hw
,
1541 unsigned int changed_flags
,
1542 unsigned int *total_flags
,
1545 struct iwl_priv
*priv
= hw
->priv
;
1546 __le32
*filter_flags
= &priv
->staging_rxon
.filter_flags
;
1548 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
1549 changed_flags
, *total_flags
);
1551 if (changed_flags
& (FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
)) {
1552 if (*total_flags
& (FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
))
1553 *filter_flags
|= RXON_FILTER_PROMISC_MSK
;
1555 *filter_flags
&= ~RXON_FILTER_PROMISC_MSK
;
1557 if (changed_flags
& FIF_ALLMULTI
) {
1558 if (*total_flags
& FIF_ALLMULTI
)
1559 *filter_flags
|= RXON_FILTER_ACCEPT_GRP_MSK
;
1561 *filter_flags
&= ~RXON_FILTER_ACCEPT_GRP_MSK
;
1563 if (changed_flags
& FIF_CONTROL
) {
1564 if (*total_flags
& FIF_CONTROL
)
1565 *filter_flags
|= RXON_FILTER_CTL2HOST_MSK
;
1567 *filter_flags
&= ~RXON_FILTER_CTL2HOST_MSK
;
1569 if (changed_flags
& FIF_BCN_PRBRESP_PROMISC
) {
1570 if (*total_flags
& FIF_BCN_PRBRESP_PROMISC
)
1571 *filter_flags
|= RXON_FILTER_BCON_AWARE_MSK
;
1573 *filter_flags
&= ~RXON_FILTER_BCON_AWARE_MSK
;
1576 /* We avoid iwl_commit_rxon here to commit the new filter flags
1577 * since mac80211 will call ieee80211_hw_config immediately.
1578 * (mc_list is not supported at this time). Otherwise, we need to
1579 * queue a background iwl_commit_rxon work.
1582 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
1583 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
1585 EXPORT_SYMBOL(iwl_configure_filter
);
1587 int iwl_set_hw_params(struct iwl_priv
*priv
)
1589 priv
->hw_params
.max_rxq_size
= RX_QUEUE_SIZE
;
1590 priv
->hw_params
.max_rxq_log
= RX_QUEUE_SIZE_LOG
;
1591 if (priv
->cfg
->mod_params
->amsdu_size_8K
)
1592 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_8K
);
1594 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_4K
);
1596 priv
->hw_params
.max_beacon_itrvl
= IWL_MAX_UCODE_BEACON_INTERVAL
;
1598 if (priv
->cfg
->mod_params
->disable_11n
)
1599 priv
->cfg
->sku
&= ~IWL_SKU_N
;
1601 /* Device-specific setup */
1602 return priv
->cfg
->ops
->lib
->set_hw_params(priv
);
1604 EXPORT_SYMBOL(iwl_set_hw_params
);
1606 int iwl_set_tx_power(struct iwl_priv
*priv
, s8 tx_power
, bool force
)
1609 s8 prev_tx_power
= priv
->tx_power_user_lmt
;
1611 if (tx_power
< IWL_TX_POWER_TARGET_POWER_MIN
) {
1612 IWL_WARN(priv
, "Requested user TXPOWER %d below lower limit %d.\n",
1614 IWL_TX_POWER_TARGET_POWER_MIN
);
1618 if (tx_power
> priv
->tx_power_device_lmt
) {
1620 "Requested user TXPOWER %d above upper limit %d.\n",
1621 tx_power
, priv
->tx_power_device_lmt
);
1625 if (priv
->tx_power_user_lmt
!= tx_power
)
1628 /* if nic is not up don't send command */
1629 if (iwl_is_ready_rf(priv
)) {
1630 priv
->tx_power_user_lmt
= tx_power
;
1631 if (force
&& priv
->cfg
->ops
->lib
->send_tx_power
)
1632 ret
= priv
->cfg
->ops
->lib
->send_tx_power(priv
);
1633 else if (!priv
->cfg
->ops
->lib
->send_tx_power
)
1636 * if fail to set tx_power, restore the orig. tx power
1639 priv
->tx_power_user_lmt
= prev_tx_power
;
1643 * Even this is an async host command, the command
1644 * will always report success from uCode
1645 * So once driver can placing the command into the queue
1646 * successfully, driver can use priv->tx_power_user_lmt
1647 * to reflect the current tx power
1651 EXPORT_SYMBOL(iwl_set_tx_power
);
1653 #define ICT_COUNT (PAGE_SIZE/sizeof(u32))
1655 /* Free dram table */
1656 void iwl_free_isr_ict(struct iwl_priv
*priv
)
1658 if (priv
->ict_tbl_vir
) {
1659 pci_free_consistent(priv
->pci_dev
, (sizeof(u32
) * ICT_COUNT
) +
1660 PAGE_SIZE
, priv
->ict_tbl_vir
,
1662 priv
->ict_tbl_vir
= NULL
;
1665 EXPORT_SYMBOL(iwl_free_isr_ict
);
1668 /* allocate dram shared table it is a PAGE_SIZE aligned
1669 * also reset all data related to ICT table interrupt.
1671 int iwl_alloc_isr_ict(struct iwl_priv
*priv
)
1674 if (priv
->cfg
->use_isr_legacy
)
1676 /* allocate shrared data table */
1677 priv
->ict_tbl_vir
= pci_alloc_consistent(priv
->pci_dev
, (sizeof(u32
) *
1678 ICT_COUNT
) + PAGE_SIZE
,
1679 &priv
->ict_tbl_dma
);
1680 if (!priv
->ict_tbl_vir
)
1683 /* align table to PAGE_SIZE boundry */
1684 priv
->aligned_ict_tbl_dma
= ALIGN(priv
->ict_tbl_dma
, PAGE_SIZE
);
1686 IWL_DEBUG_ISR(priv
, "ict dma addr %Lx dma aligned %Lx diff %d\n",
1687 (unsigned long long)priv
->ict_tbl_dma
,
1688 (unsigned long long)priv
->aligned_ict_tbl_dma
,
1689 (int)(priv
->aligned_ict_tbl_dma
- priv
->ict_tbl_dma
));
1691 priv
->ict_tbl
= priv
->ict_tbl_vir
+
1692 (priv
->aligned_ict_tbl_dma
- priv
->ict_tbl_dma
);
1694 IWL_DEBUG_ISR(priv
, "ict vir addr %p vir aligned %p diff %d\n",
1695 priv
->ict_tbl
, priv
->ict_tbl_vir
,
1696 (int)(priv
->aligned_ict_tbl_dma
- priv
->ict_tbl_dma
));
1698 /* reset table and index to all 0 */
1699 memset(priv
->ict_tbl_vir
,0, (sizeof(u32
) * ICT_COUNT
) + PAGE_SIZE
);
1700 priv
->ict_index
= 0;
1702 /* add periodic RX interrupt */
1703 priv
->inta_mask
|= CSR_INT_BIT_RX_PERIODIC
;
1706 EXPORT_SYMBOL(iwl_alloc_isr_ict
);
1708 /* Device is going up inform it about using ICT interrupt table,
1709 * also we need to tell the driver to start using ICT interrupt.
1711 int iwl_reset_ict(struct iwl_priv
*priv
)
1714 unsigned long flags
;
1716 if (!priv
->ict_tbl_vir
)
1719 spin_lock_irqsave(&priv
->lock
, flags
);
1720 iwl_disable_interrupts(priv
);
1722 memset(&priv
->ict_tbl
[0], 0, sizeof(u32
) * ICT_COUNT
);
1724 val
= priv
->aligned_ict_tbl_dma
>> PAGE_SHIFT
;
1726 val
|= CSR_DRAM_INT_TBL_ENABLE
;
1727 val
|= CSR_DRAM_INIT_TBL_WRAP_CHECK
;
1729 IWL_DEBUG_ISR(priv
, "CSR_DRAM_INT_TBL_REG =0x%X "
1730 "aligned dma address %Lx\n",
1731 val
, (unsigned long long)priv
->aligned_ict_tbl_dma
);
1733 iwl_write32(priv
, CSR_DRAM_INT_TBL_REG
, val
);
1734 priv
->use_ict
= true;
1735 priv
->ict_index
= 0;
1736 iwl_write32(priv
, CSR_INT
, priv
->inta_mask
);
1737 iwl_enable_interrupts(priv
);
1738 spin_unlock_irqrestore(&priv
->lock
, flags
);
1742 EXPORT_SYMBOL(iwl_reset_ict
);
1744 /* Device is going down disable ict interrupt usage */
1745 void iwl_disable_ict(struct iwl_priv
*priv
)
1747 unsigned long flags
;
1749 spin_lock_irqsave(&priv
->lock
, flags
);
1750 priv
->use_ict
= false;
1751 spin_unlock_irqrestore(&priv
->lock
, flags
);
1753 EXPORT_SYMBOL(iwl_disable_ict
);
1755 /* interrupt handler using ict table, with this interrupt driver will
1756 * stop using INTA register to get device's interrupt, reading this register
1757 * is expensive, device will write interrupts in ICT dram table, increment
1758 * index then will fire interrupt to driver, driver will OR all ICT table
1759 * entries from current index up to table entry with 0 value. the result is
1760 * the interrupt we need to service, driver will set the entries back to 0 and
1763 irqreturn_t
iwl_isr_ict(int irq
, void *data
)
1765 struct iwl_priv
*priv
= data
;
1766 u32 inta
, inta_mask
;
1772 /* dram interrupt table not set yet,
1773 * use legacy interrupt.
1776 return iwl_isr(irq
, data
);
1778 spin_lock(&priv
->lock
);
1780 /* Disable (but don't clear!) interrupts here to avoid
1781 * back-to-back ISRs and sporadic interrupts from our NIC.
1782 * If we have something to service, the tasklet will re-enable ints.
1783 * If we *don't* have something, we'll re-enable before leaving here.
1785 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
1786 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
1789 /* Ignore interrupt if there's nothing in NIC to service.
1790 * This may be due to IRQ shared with another device,
1791 * or due to sporadic interrupts thrown from our NIC. */
1792 if (!priv
->ict_tbl
[priv
->ict_index
]) {
1793 IWL_DEBUG_ISR(priv
, "Ignore interrupt, inta == 0\n");
1797 /* read all entries that not 0 start with ict_index */
1798 while (priv
->ict_tbl
[priv
->ict_index
]) {
1800 val
|= le32_to_cpu(priv
->ict_tbl
[priv
->ict_index
]);
1801 IWL_DEBUG_ISR(priv
, "ICT index %d value 0x%08X\n",
1803 le32_to_cpu(priv
->ict_tbl
[priv
->ict_index
]));
1804 priv
->ict_tbl
[priv
->ict_index
] = 0;
1805 priv
->ict_index
= iwl_queue_inc_wrap(priv
->ict_index
,
1810 /* We should not get this value, just ignore it. */
1811 if (val
== 0xffffffff)
1814 inta
= (0xff & val
) | ((0xff00 & val
) << 16);
1815 IWL_DEBUG_ISR(priv
, "ISR inta 0x%08x, enabled 0x%08x ict 0x%08x\n",
1816 inta
, inta_mask
, val
);
1818 inta
&= priv
->inta_mask
;
1821 /* iwl_irq_tasklet() will service interrupts and re-enable them */
1823 tasklet_schedule(&priv
->irq_tasklet
);
1824 else if (test_bit(STATUS_INT_ENABLED
, &priv
->status
) && !priv
->inta
) {
1825 /* Allow interrupt if was disabled by this handler and
1826 * no tasklet was schedules, We should not enable interrupt,
1827 * tasklet will enable it.
1829 iwl_enable_interrupts(priv
);
1832 spin_unlock(&priv
->lock
);
1836 /* re-enable interrupts here since we don't have anything to service.
1837 * only Re-enable if disabled by irq.
1839 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
) && !priv
->inta
)
1840 iwl_enable_interrupts(priv
);
1842 spin_unlock(&priv
->lock
);
1845 EXPORT_SYMBOL(iwl_isr_ict
);
1848 static irqreturn_t
iwl_isr(int irq
, void *data
)
1850 struct iwl_priv
*priv
= data
;
1851 u32 inta
, inta_mask
;
1852 #ifdef CONFIG_IWLWIFI_DEBUG
1858 spin_lock(&priv
->lock
);
1860 /* Disable (but don't clear!) interrupts here to avoid
1861 * back-to-back ISRs and sporadic interrupts from our NIC.
1862 * If we have something to service, the tasklet will re-enable ints.
1863 * If we *don't* have something, we'll re-enable before leaving here. */
1864 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
1865 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
1867 /* Discover which interrupts are active/pending */
1868 inta
= iwl_read32(priv
, CSR_INT
);
1870 /* Ignore interrupt if there's nothing in NIC to service.
1871 * This may be due to IRQ shared with another device,
1872 * or due to sporadic interrupts thrown from our NIC. */
1874 IWL_DEBUG_ISR(priv
, "Ignore interrupt, inta == 0\n");
1878 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
1879 /* Hardware disappeared. It might have already raised
1881 IWL_WARN(priv
, "HARDWARE GONE?? INTA == 0x%08x\n", inta
);
1885 #ifdef CONFIG_IWLWIFI_DEBUG
1886 if (iwl_get_debug_level(priv
) & (IWL_DL_ISR
)) {
1887 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1888 IWL_DEBUG_ISR(priv
, "ISR inta 0x%08x, enabled 0x%08x, "
1889 "fh 0x%08x\n", inta
, inta_mask
, inta_fh
);
1894 /* iwl_irq_tasklet() will service interrupts and re-enable them */
1896 tasklet_schedule(&priv
->irq_tasklet
);
1897 else if (test_bit(STATUS_INT_ENABLED
, &priv
->status
) && !priv
->inta
)
1898 iwl_enable_interrupts(priv
);
1901 spin_unlock(&priv
->lock
);
1905 /* re-enable interrupts here since we don't have anything to service. */
1906 /* only Re-enable if diabled by irq and no schedules tasklet. */
1907 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
) && !priv
->inta
)
1908 iwl_enable_interrupts(priv
);
1910 spin_unlock(&priv
->lock
);
1914 irqreturn_t
iwl_isr_legacy(int irq
, void *data
)
1916 struct iwl_priv
*priv
= data
;
1917 u32 inta
, inta_mask
;
1922 spin_lock(&priv
->lock
);
1924 /* Disable (but don't clear!) interrupts here to avoid
1925 * back-to-back ISRs and sporadic interrupts from our NIC.
1926 * If we have something to service, the tasklet will re-enable ints.
1927 * If we *don't* have something, we'll re-enable before leaving here. */
1928 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
1929 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
1931 /* Discover which interrupts are active/pending */
1932 inta
= iwl_read32(priv
, CSR_INT
);
1933 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1935 /* Ignore interrupt if there's nothing in NIC to service.
1936 * This may be due to IRQ shared with another device,
1937 * or due to sporadic interrupts thrown from our NIC. */
1938 if (!inta
&& !inta_fh
) {
1939 IWL_DEBUG_ISR(priv
, "Ignore interrupt, inta == 0, inta_fh == 0\n");
1943 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
1944 /* Hardware disappeared. It might have already raised
1946 IWL_WARN(priv
, "HARDWARE GONE?? INTA == 0x%08x\n", inta
);
1950 IWL_DEBUG_ISR(priv
, "ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1951 inta
, inta_mask
, inta_fh
);
1953 inta
&= ~CSR_INT_BIT_SCD
;
1955 /* iwl_irq_tasklet() will service interrupts and re-enable them */
1956 if (likely(inta
|| inta_fh
))
1957 tasklet_schedule(&priv
->irq_tasklet
);
1960 spin_unlock(&priv
->lock
);
1964 /* re-enable interrupts here since we don't have anything to service. */
1965 /* only Re-enable if diabled by irq */
1966 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
1967 iwl_enable_interrupts(priv
);
1968 spin_unlock(&priv
->lock
);
1971 EXPORT_SYMBOL(iwl_isr_legacy
);
1973 int iwl_send_bt_config(struct iwl_priv
*priv
)
1975 struct iwl_bt_cmd bt_cmd
= {
1976 .flags
= BT_COEX_MODE_4W
,
1977 .lead_time
= BT_LEAD_TIME_DEF
,
1978 .max_kill
= BT_MAX_KILL_DEF
,
1983 return iwl_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
1984 sizeof(struct iwl_bt_cmd
), &bt_cmd
);
1986 EXPORT_SYMBOL(iwl_send_bt_config
);
1988 int iwl_send_statistics_request(struct iwl_priv
*priv
, u8 flags
)
1991 struct iwl_host_cmd cmd
= {
1992 .id
= REPLY_STATISTICS_CMD
,
1994 .len
= sizeof(stat_flags
),
1995 .data
= (u8
*) &stat_flags
,
1997 return iwl_send_cmd(priv
, &cmd
);
1999 EXPORT_SYMBOL(iwl_send_statistics_request
);
2002 * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
2003 * using sample data 100 bytes apart. If these sample points are good,
2004 * it's a pretty good bet that everything between them is good, too.
2006 static int iwlcore_verify_inst_sparse(struct iwl_priv
*priv
, __le32
*image
, u32 len
)
2013 IWL_DEBUG_INFO(priv
, "ucode inst image size is %u\n", len
);
2015 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
2016 /* read data comes through single port, auto-incr addr */
2017 /* NOTE: Use the debugless read so we don't flood kernel log
2018 * if IWL_DL_IO is set */
2019 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
2020 i
+ IWL49_RTC_INST_LOWER_BOUND
);
2021 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
2022 if (val
!= le32_to_cpu(*image
)) {
2034 * iwlcore_verify_inst_full - verify runtime uCode image in card vs. host,
2035 * looking at all data.
2037 static int iwl_verify_inst_full(struct iwl_priv
*priv
, __le32
*image
,
2045 IWL_DEBUG_INFO(priv
, "ucode inst image size is %u\n", len
);
2047 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
2048 IWL49_RTC_INST_LOWER_BOUND
);
2051 for (; len
> 0; len
-= sizeof(u32
), image
++) {
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 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
2056 if (val
!= le32_to_cpu(*image
)) {
2057 IWL_ERR(priv
, "uCode INST section is invalid at "
2058 "offset 0x%x, is 0x%x, s/b 0x%x\n",
2059 save_len
- len
, val
, le32_to_cpu(*image
));
2068 IWL_DEBUG_INFO(priv
,
2069 "ucode image in INSTRUCTION memory is good\n");
2075 * iwl_verify_ucode - determine which instruction image is in SRAM,
2076 * and verify its contents
2078 int iwl_verify_ucode(struct iwl_priv
*priv
)
2085 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
2086 len
= priv
->ucode_boot
.len
;
2087 ret
= iwlcore_verify_inst_sparse(priv
, image
, len
);
2089 IWL_DEBUG_INFO(priv
, "Bootstrap uCode is good in inst SRAM\n");
2093 /* Try initialize */
2094 image
= (__le32
*)priv
->ucode_init
.v_addr
;
2095 len
= priv
->ucode_init
.len
;
2096 ret
= iwlcore_verify_inst_sparse(priv
, image
, len
);
2098 IWL_DEBUG_INFO(priv
, "Initialize uCode is good in inst SRAM\n");
2102 /* Try runtime/protocol */
2103 image
= (__le32
*)priv
->ucode_code
.v_addr
;
2104 len
= priv
->ucode_code
.len
;
2105 ret
= iwlcore_verify_inst_sparse(priv
, image
, len
);
2107 IWL_DEBUG_INFO(priv
, "Runtime uCode is good in inst SRAM\n");
2111 IWL_ERR(priv
, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
2113 /* Since nothing seems to match, show first several data entries in
2114 * instruction SRAM, so maybe visual inspection will give a clue.
2115 * Selection of bootstrap image (vs. other images) is arbitrary. */
2116 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
2117 len
= priv
->ucode_boot
.len
;
2118 ret
= iwl_verify_inst_full(priv
, image
, len
);
2122 EXPORT_SYMBOL(iwl_verify_ucode
);
2125 void iwl_rf_kill_ct_config(struct iwl_priv
*priv
)
2127 struct iwl_ct_kill_config cmd
;
2128 struct iwl_ct_kill_throttling_config adv_cmd
;
2129 unsigned long flags
;
2132 spin_lock_irqsave(&priv
->lock
, flags
);
2133 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
2134 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
2135 spin_unlock_irqrestore(&priv
->lock
, flags
);
2136 priv
->thermal_throttle
.ct_kill_toggle
= false;
2138 if (priv
->cfg
->support_ct_kill_exit
) {
2139 adv_cmd
.critical_temperature_enter
=
2140 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
2141 adv_cmd
.critical_temperature_exit
=
2142 cpu_to_le32(priv
->hw_params
.ct_kill_exit_threshold
);
2144 ret
= iwl_send_cmd_pdu(priv
, REPLY_CT_KILL_CONFIG_CMD
,
2145 sizeof(adv_cmd
), &adv_cmd
);
2147 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
2149 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
2151 "critical temperature enter is %d,"
2153 priv
->hw_params
.ct_kill_threshold
,
2154 priv
->hw_params
.ct_kill_exit_threshold
);
2156 cmd
.critical_temperature_R
=
2157 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
2159 ret
= iwl_send_cmd_pdu(priv
, REPLY_CT_KILL_CONFIG_CMD
,
2162 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
2164 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
2166 "critical temperature is %d\n",
2167 priv
->hw_params
.ct_kill_threshold
);
2170 EXPORT_SYMBOL(iwl_rf_kill_ct_config
);
2176 * Use: Sets the device's internal card state to enable, disable, or halt
2178 * When in the 'enable' state the card operates as normal.
2179 * When in the 'disable' state, the card enters into a low power mode.
2180 * When in the 'halt' state, the card is shut down and must be fully
2181 * restarted to come back on.
2183 int iwl_send_card_state(struct iwl_priv
*priv
, u32 flags
, u8 meta_flag
)
2185 struct iwl_host_cmd cmd
= {
2186 .id
= REPLY_CARD_STATE_CMD
,
2192 return iwl_send_cmd(priv
, &cmd
);
2195 void iwl_rx_pm_sleep_notif(struct iwl_priv
*priv
,
2196 struct iwl_rx_mem_buffer
*rxb
)
2198 #ifdef CONFIG_IWLWIFI_DEBUG
2199 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
2200 struct iwl_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
2201 IWL_DEBUG_RX(priv
, "sleep mode: %d, src: %d\n",
2202 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
2205 EXPORT_SYMBOL(iwl_rx_pm_sleep_notif
);
2207 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
2208 struct iwl_rx_mem_buffer
*rxb
)
2210 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
2211 u32 len
= le32_to_cpu(pkt
->len_n_flags
) & FH_RSCSR_FRAME_SIZE_MSK
;
2212 IWL_DEBUG_RADIO(priv
, "Dumping %d bytes of unhandled "
2213 "notification for %s:\n", len
,
2214 get_cmd_string(pkt
->hdr
.cmd
));
2215 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, pkt
->u
.raw
, len
);
2217 EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif
);
2219 void iwl_rx_reply_error(struct iwl_priv
*priv
,
2220 struct iwl_rx_mem_buffer
*rxb
)
2222 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
2224 IWL_ERR(priv
, "Error Reply type 0x%08X cmd %s (0x%02X) "
2225 "seq 0x%04X ser 0x%08X\n",
2226 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
2227 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
2228 pkt
->u
.err_resp
.cmd_id
,
2229 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
2230 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
2232 EXPORT_SYMBOL(iwl_rx_reply_error
);
2234 void iwl_clear_isr_stats(struct iwl_priv
*priv
)
2236 memset(&priv
->isr_stats
, 0, sizeof(priv
->isr_stats
));
2239 int iwl_mac_conf_tx(struct ieee80211_hw
*hw
, u16 queue
,
2240 const struct ieee80211_tx_queue_params
*params
)
2242 struct iwl_priv
*priv
= hw
->priv
;
2243 unsigned long flags
;
2246 IWL_DEBUG_MAC80211(priv
, "enter\n");
2248 if (!iwl_is_ready_rf(priv
)) {
2249 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
2253 if (queue
>= AC_NUM
) {
2254 IWL_DEBUG_MAC80211(priv
, "leave - queue >= AC_NUM %d\n", queue
);
2258 q
= AC_NUM
- 1 - queue
;
2260 spin_lock_irqsave(&priv
->lock
, flags
);
2262 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
2263 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
2264 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
2265 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
2266 cpu_to_le16((params
->txop
* 32));
2268 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
2269 priv
->qos_data
.qos_active
= 1;
2271 if (priv
->iw_mode
== NL80211_IFTYPE_AP
)
2272 iwl_activate_qos(priv
, 1);
2273 else if (priv
->assoc_id
&& iwl_is_associated(priv
))
2274 iwl_activate_qos(priv
, 0);
2276 spin_unlock_irqrestore(&priv
->lock
, flags
);
2278 IWL_DEBUG_MAC80211(priv
, "leave\n");
2281 EXPORT_SYMBOL(iwl_mac_conf_tx
);
2283 static void iwl_ht_conf(struct iwl_priv
*priv
,
2284 struct ieee80211_bss_conf
*bss_conf
)
2286 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
2287 struct ieee80211_sta
*sta
;
2289 IWL_DEBUG_MAC80211(priv
, "enter: \n");
2291 if (!ht_conf
->is_ht
)
2294 ht_conf
->ht_protection
=
2295 bss_conf
->ht_operation_mode
& IEEE80211_HT_OP_MODE_PROTECTION
;
2296 ht_conf
->non_GF_STA_present
=
2297 !!(bss_conf
->ht_operation_mode
& IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT
);
2299 ht_conf
->single_chain_sufficient
= false;
2301 switch (priv
->iw_mode
) {
2302 case NL80211_IFTYPE_STATION
:
2304 sta
= ieee80211_find_sta(priv
->vif
, priv
->bssid
);
2306 struct ieee80211_sta_ht_cap
*ht_cap
= &sta
->ht_cap
;
2309 maxstreams
= (ht_cap
->mcs
.tx_params
&
2310 IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK
)
2311 >> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
;
2315 (u8
)((ht_cap
->cap
& IEEE80211_HT_CAP_SM_PS
)
2317 IWL_DEBUG_MAC80211(priv
, "sm_ps: 0x%x\n",
2320 if ((ht_cap
->mcs
.rx_mask
[1] == 0) &&
2321 (ht_cap
->mcs
.rx_mask
[2] == 0))
2322 ht_conf
->single_chain_sufficient
= true;
2323 if (maxstreams
<= 1)
2324 ht_conf
->single_chain_sufficient
= true;
2327 * If at all, this can only happen through a race
2328 * when the AP disconnects us while we're still
2329 * setting up the connection, in that case mac80211
2330 * will soon tell us about that.
2332 ht_conf
->single_chain_sufficient
= true;
2336 case NL80211_IFTYPE_ADHOC
:
2337 ht_conf
->single_chain_sufficient
= true;
2343 IWL_DEBUG_MAC80211(priv
, "leave\n");
2346 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
2347 void iwl_bss_info_changed(struct ieee80211_hw
*hw
,
2348 struct ieee80211_vif
*vif
,
2349 struct ieee80211_bss_conf
*bss_conf
,
2352 struct iwl_priv
*priv
= hw
->priv
;
2355 IWL_DEBUG_MAC80211(priv
, "changes = 0x%X\n", changes
);
2357 if (!iwl_is_alive(priv
))
2360 mutex_lock(&priv
->mutex
);
2362 if (changes
& BSS_CHANGED_BEACON
&&
2363 priv
->iw_mode
== NL80211_IFTYPE_AP
) {
2364 dev_kfree_skb(priv
->ibss_beacon
);
2365 priv
->ibss_beacon
= ieee80211_beacon_get(hw
, vif
);
2368 if (changes
& BSS_CHANGED_BEACON_INT
) {
2369 priv
->beacon_int
= bss_conf
->beacon_int
;
2370 /* TODO: in AP mode, do something to make this take effect */
2373 if (changes
& BSS_CHANGED_BSSID
) {
2374 IWL_DEBUG_MAC80211(priv
, "BSSID %pM\n", bss_conf
->bssid
);
2377 * If there is currently a HW scan going on in the
2378 * background then we need to cancel it else the RXON
2379 * below/in post_associate will fail.
2381 if (iwl_scan_cancel_timeout(priv
, 100)) {
2382 IWL_WARN(priv
, "Aborted scan still in progress after 100ms\n");
2383 IWL_DEBUG_MAC80211(priv
, "leaving - scan abort failed.\n");
2384 mutex_unlock(&priv
->mutex
);
2388 /* mac80211 only sets assoc when in STATION mode */
2389 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
||
2391 memcpy(priv
->staging_rxon
.bssid_addr
,
2392 bss_conf
->bssid
, ETH_ALEN
);
2394 /* currently needed in a few places */
2395 memcpy(priv
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
2397 priv
->staging_rxon
.filter_flags
&=
2398 ~RXON_FILTER_ASSOC_MSK
;
2404 * This needs to be after setting the BSSID in case
2405 * mac80211 decides to do both changes at once because
2406 * it will invoke post_associate.
2408 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
&&
2409 changes
& BSS_CHANGED_BEACON
) {
2410 struct sk_buff
*beacon
= ieee80211_beacon_get(hw
, vif
);
2413 iwl_mac_beacon_update(hw
, beacon
);
2416 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
2417 IWL_DEBUG_MAC80211(priv
, "ERP_PREAMBLE %d\n",
2418 bss_conf
->use_short_preamble
);
2419 if (bss_conf
->use_short_preamble
)
2420 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2422 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2425 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
2426 IWL_DEBUG_MAC80211(priv
, "ERP_CTS %d\n", bss_conf
->use_cts_prot
);
2427 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
2428 priv
->staging_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
2430 priv
->staging_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
2433 if (changes
& BSS_CHANGED_BASIC_RATES
) {
2434 /* XXX use this information
2436 * To do that, remove code from iwl_set_rate() and put something
2440 priv->staging_rxon.ofdm_basic_rates =
2441 bss_conf->basic_rates;
2443 priv->staging_rxon.ofdm_basic_rates =
2444 bss_conf->basic_rates >> 4;
2445 priv->staging_rxon.cck_basic_rates =
2446 bss_conf->basic_rates & 0xF;
2450 if (changes
& BSS_CHANGED_HT
) {
2451 iwl_ht_conf(priv
, bss_conf
);
2453 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2454 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2457 if (changes
& BSS_CHANGED_ASSOC
) {
2458 IWL_DEBUG_MAC80211(priv
, "ASSOC %d\n", bss_conf
->assoc
);
2459 if (bss_conf
->assoc
) {
2460 priv
->assoc_id
= bss_conf
->aid
;
2461 priv
->beacon_int
= bss_conf
->beacon_int
;
2462 priv
->timestamp
= bss_conf
->timestamp
;
2463 priv
->assoc_capability
= bss_conf
->assoc_capability
;
2465 iwl_led_associate(priv
);
2468 * We have just associated, don't start scan too early
2469 * leave time for EAPOL exchange to complete.
2471 * XXX: do this in mac80211
2473 priv
->next_scan_jiffies
= jiffies
+
2474 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC
;
2475 if (!iwl_is_rfkill(priv
))
2476 priv
->cfg
->ops
->lib
->post_associate(priv
);
2479 iwl_led_disassociate(priv
);
2483 if (changes
&& iwl_is_associated(priv
) && priv
->assoc_id
) {
2484 IWL_DEBUG_MAC80211(priv
, "Changes (%#x) while associated\n",
2486 ret
= iwl_send_rxon_assoc(priv
);
2488 /* Sync active_rxon with latest change. */
2489 memcpy((void *)&priv
->active_rxon
,
2490 &priv
->staging_rxon
,
2491 sizeof(struct iwl_rxon_cmd
));
2495 mutex_unlock(&priv
->mutex
);
2497 IWL_DEBUG_MAC80211(priv
, "leave\n");
2499 EXPORT_SYMBOL(iwl_bss_info_changed
);
2501 int iwl_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
2503 struct iwl_priv
*priv
= hw
->priv
;
2504 unsigned long flags
;
2507 IWL_DEBUG_MAC80211(priv
, "enter\n");
2509 if (!iwl_is_ready_rf(priv
)) {
2510 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
2514 if (priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) {
2515 IWL_DEBUG_MAC80211(priv
, "leave - not IBSS\n");
2519 spin_lock_irqsave(&priv
->lock
, flags
);
2521 if (priv
->ibss_beacon
)
2522 dev_kfree_skb(priv
->ibss_beacon
);
2524 priv
->ibss_beacon
= skb
;
2527 timestamp
= ((struct ieee80211_mgmt
*)skb
->data
)->u
.beacon
.timestamp
;
2528 priv
->timestamp
= le64_to_cpu(timestamp
);
2530 IWL_DEBUG_MAC80211(priv
, "leave\n");
2531 spin_unlock_irqrestore(&priv
->lock
, flags
);
2533 iwl_reset_qos(priv
);
2535 priv
->cfg
->ops
->lib
->post_associate(priv
);
2540 EXPORT_SYMBOL(iwl_mac_beacon_update
);
2542 int iwl_set_mode(struct iwl_priv
*priv
, int mode
)
2544 if (mode
== NL80211_IFTYPE_ADHOC
) {
2545 const struct iwl_channel_info
*ch_info
;
2547 ch_info
= iwl_get_channel_info(priv
,
2549 le16_to_cpu(priv
->staging_rxon
.channel
));
2551 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
2552 IWL_ERR(priv
, "channel %d not IBSS channel\n",
2553 le16_to_cpu(priv
->staging_rxon
.channel
));
2558 iwl_connection_init_rx_config(priv
, mode
);
2560 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2561 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2563 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2565 iwl_clear_stations_table(priv
);
2567 /* dont commit rxon if rf-kill is on*/
2568 if (!iwl_is_ready_rf(priv
))
2571 iwlcore_commit_rxon(priv
);
2575 EXPORT_SYMBOL(iwl_set_mode
);
2577 int iwl_mac_add_interface(struct ieee80211_hw
*hw
,
2578 struct ieee80211_if_init_conf
*conf
)
2580 struct iwl_priv
*priv
= hw
->priv
;
2581 unsigned long flags
;
2583 IWL_DEBUG_MAC80211(priv
, "enter: type %d\n", conf
->type
);
2586 IWL_DEBUG_MAC80211(priv
, "leave - vif != NULL\n");
2590 spin_lock_irqsave(&priv
->lock
, flags
);
2591 priv
->vif
= conf
->vif
;
2592 priv
->iw_mode
= conf
->type
;
2594 spin_unlock_irqrestore(&priv
->lock
, flags
);
2596 mutex_lock(&priv
->mutex
);
2598 if (conf
->mac_addr
) {
2599 IWL_DEBUG_MAC80211(priv
, "Set %pM\n", conf
->mac_addr
);
2600 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
2603 if (iwl_set_mode(priv
, conf
->type
) == -EAGAIN
)
2604 /* we are not ready, will run again when ready */
2605 set_bit(STATUS_MODE_PENDING
, &priv
->status
);
2607 mutex_unlock(&priv
->mutex
);
2609 IWL_DEBUG_MAC80211(priv
, "leave\n");
2612 EXPORT_SYMBOL(iwl_mac_add_interface
);
2614 void iwl_mac_remove_interface(struct ieee80211_hw
*hw
,
2615 struct ieee80211_if_init_conf
*conf
)
2617 struct iwl_priv
*priv
= hw
->priv
;
2619 IWL_DEBUG_MAC80211(priv
, "enter\n");
2621 mutex_lock(&priv
->mutex
);
2623 if (iwl_is_ready_rf(priv
)) {
2624 iwl_scan_cancel_timeout(priv
, 100);
2625 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2626 iwlcore_commit_rxon(priv
);
2628 if (priv
->vif
== conf
->vif
) {
2630 memset(priv
->bssid
, 0, ETH_ALEN
);
2632 mutex_unlock(&priv
->mutex
);
2634 IWL_DEBUG_MAC80211(priv
, "leave\n");
2637 EXPORT_SYMBOL(iwl_mac_remove_interface
);
2640 * iwl_mac_config - mac80211 config callback
2642 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
2643 * be set inappropriately and the driver currently sets the hardware up to
2644 * use it whenever needed.
2646 int iwl_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
2648 struct iwl_priv
*priv
= hw
->priv
;
2649 const struct iwl_channel_info
*ch_info
;
2650 struct ieee80211_conf
*conf
= &hw
->conf
;
2651 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
2652 unsigned long flags
= 0;
2655 int scan_active
= 0;
2657 mutex_lock(&priv
->mutex
);
2659 IWL_DEBUG_MAC80211(priv
, "enter to channel %d changed 0x%X\n",
2660 conf
->channel
->hw_value
, changed
);
2662 if (unlikely(!priv
->cfg
->mod_params
->disable_hw_scan
&&
2663 test_bit(STATUS_SCANNING
, &priv
->status
))) {
2665 IWL_DEBUG_MAC80211(priv
, "leave - scanning\n");
2669 /* during scanning mac80211 will delay channel setting until
2670 * scan finish with changed = 0
2672 if (!changed
|| (changed
& IEEE80211_CONF_CHANGE_CHANNEL
)) {
2676 ch
= ieee80211_frequency_to_channel(conf
->channel
->center_freq
);
2677 ch_info
= iwl_get_channel_info(priv
, conf
->channel
->band
, ch
);
2678 if (!is_channel_valid(ch_info
)) {
2679 IWL_DEBUG_MAC80211(priv
, "leave - invalid channel\n");
2684 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
&&
2685 !is_channel_ibss(ch_info
)) {
2686 IWL_ERR(priv
, "channel %d in band %d not "
2688 conf
->channel
->hw_value
, conf
->channel
->band
);
2693 if (iwl_is_associated(priv
) &&
2694 (le16_to_cpu(priv
->active_rxon
.channel
) != ch
) &&
2695 priv
->cfg
->ops
->lib
->set_channel_switch
) {
2696 ret
= priv
->cfg
->ops
->lib
->set_channel_switch(priv
,
2701 spin_lock_irqsave(&priv
->lock
, flags
);
2703 /* Configure HT40 channels */
2704 ht_conf
->is_ht
= conf_is_ht(conf
);
2705 if (ht_conf
->is_ht
) {
2706 if (conf_is_ht40_minus(conf
)) {
2707 ht_conf
->extension_chan_offset
=
2708 IEEE80211_HT_PARAM_CHA_SEC_BELOW
;
2709 ht_conf
->is_40mhz
= true;
2710 } else if (conf_is_ht40_plus(conf
)) {
2711 ht_conf
->extension_chan_offset
=
2712 IEEE80211_HT_PARAM_CHA_SEC_ABOVE
;
2713 ht_conf
->is_40mhz
= true;
2715 ht_conf
->extension_chan_offset
=
2716 IEEE80211_HT_PARAM_CHA_SEC_NONE
;
2717 ht_conf
->is_40mhz
= false;
2720 ht_conf
->is_40mhz
= false;
2721 /* Default to no protection. Protection mode will later be set
2722 * from BSS config in iwl_ht_conf */
2723 ht_conf
->ht_protection
= IEEE80211_HT_OP_MODE_PROTECTION_NONE
;
2725 /* if we are switching from ht to 2.4 clear flags
2726 * from any ht related info since 2.4 does not
2728 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != ch
))
2729 priv
->staging_rxon
.flags
= 0;
2731 iwl_set_rxon_channel(priv
, conf
->channel
);
2733 iwl_set_flags_for_band(priv
, conf
->channel
->band
);
2734 spin_unlock_irqrestore(&priv
->lock
, flags
);
2736 /* The list of supported rates and rate mask can be different
2737 * for each band; since the band may have changed, reset
2738 * the rate mask to what mac80211 lists */
2742 if (changed
& (IEEE80211_CONF_CHANGE_PS
|
2743 IEEE80211_CONF_CHANGE_IDLE
)) {
2744 ret
= iwl_power_update_mode(priv
, false);
2746 IWL_DEBUG_MAC80211(priv
, "Error setting sleep level\n");
2749 if (changed
& IEEE80211_CONF_CHANGE_POWER
) {
2750 IWL_DEBUG_MAC80211(priv
, "TX Power old=%d new=%d\n",
2751 priv
->tx_power_user_lmt
, conf
->power_level
);
2753 iwl_set_tx_power(priv
, conf
->power_level
, false);
2756 /* call to ensure that 4965 rx_chain is set properly in monitor mode */
2757 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2758 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2760 if (!iwl_is_ready(priv
)) {
2761 IWL_DEBUG_MAC80211(priv
, "leave - not ready\n");
2768 if (memcmp(&priv
->active_rxon
,
2769 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
2770 iwlcore_commit_rxon(priv
);
2772 IWL_DEBUG_INFO(priv
, "Not re-sending same RXON configuration.\n");
2776 IWL_DEBUG_MAC80211(priv
, "leave\n");
2777 mutex_unlock(&priv
->mutex
);
2780 EXPORT_SYMBOL(iwl_mac_config
);
2782 int iwl_mac_get_tx_stats(struct ieee80211_hw
*hw
,
2783 struct ieee80211_tx_queue_stats
*stats
)
2785 struct iwl_priv
*priv
= hw
->priv
;
2787 struct iwl_tx_queue
*txq
;
2788 struct iwl_queue
*q
;
2789 unsigned long flags
;
2791 IWL_DEBUG_MAC80211(priv
, "enter\n");
2793 if (!iwl_is_ready_rf(priv
)) {
2794 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
2798 spin_lock_irqsave(&priv
->lock
, flags
);
2800 for (i
= 0; i
< AC_NUM
; i
++) {
2801 txq
= &priv
->txq
[i
];
2803 avail
= iwl_queue_space(q
);
2805 stats
[i
].len
= q
->n_window
- avail
;
2806 stats
[i
].limit
= q
->n_window
- q
->high_mark
;
2807 stats
[i
].count
= q
->n_window
;
2810 spin_unlock_irqrestore(&priv
->lock
, flags
);
2812 IWL_DEBUG_MAC80211(priv
, "leave\n");
2816 EXPORT_SYMBOL(iwl_mac_get_tx_stats
);
2818 void iwl_mac_reset_tsf(struct ieee80211_hw
*hw
)
2820 struct iwl_priv
*priv
= hw
->priv
;
2821 unsigned long flags
;
2823 mutex_lock(&priv
->mutex
);
2824 IWL_DEBUG_MAC80211(priv
, "enter\n");
2826 spin_lock_irqsave(&priv
->lock
, flags
);
2827 memset(&priv
->current_ht_config
, 0, sizeof(struct iwl_ht_config
));
2828 spin_unlock_irqrestore(&priv
->lock
, flags
);
2830 iwl_reset_qos(priv
);
2832 spin_lock_irqsave(&priv
->lock
, flags
);
2834 priv
->assoc_capability
= 0;
2835 priv
->assoc_station_added
= 0;
2837 /* new association get rid of ibss beacon skb */
2838 if (priv
->ibss_beacon
)
2839 dev_kfree_skb(priv
->ibss_beacon
);
2841 priv
->ibss_beacon
= NULL
;
2843 priv
->beacon_int
= priv
->vif
->bss_conf
.beacon_int
;
2844 priv
->timestamp
= 0;
2845 if ((priv
->iw_mode
== NL80211_IFTYPE_STATION
))
2846 priv
->beacon_int
= 0;
2848 spin_unlock_irqrestore(&priv
->lock
, flags
);
2850 if (!iwl_is_ready_rf(priv
)) {
2851 IWL_DEBUG_MAC80211(priv
, "leave - not ready\n");
2852 mutex_unlock(&priv
->mutex
);
2856 /* we are restarting association process
2857 * clear RXON_FILTER_ASSOC_MSK bit
2859 if (priv
->iw_mode
!= NL80211_IFTYPE_AP
) {
2860 iwl_scan_cancel_timeout(priv
, 100);
2861 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2862 iwlcore_commit_rxon(priv
);
2865 if (priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) {
2866 IWL_DEBUG_MAC80211(priv
, "leave - not in IBSS\n");
2867 mutex_unlock(&priv
->mutex
);
2873 mutex_unlock(&priv
->mutex
);
2875 IWL_DEBUG_MAC80211(priv
, "leave\n");
2877 EXPORT_SYMBOL(iwl_mac_reset_tsf
);
2879 int iwl_alloc_txq_mem(struct iwl_priv
*priv
)
2882 priv
->txq
= kzalloc(
2883 sizeof(struct iwl_tx_queue
) * priv
->cfg
->num_of_queues
,
2886 IWL_ERR(priv
, "Not enough memory for txq \n");
2891 EXPORT_SYMBOL(iwl_alloc_txq_mem
);
2893 void iwl_free_txq_mem(struct iwl_priv
*priv
)
2898 EXPORT_SYMBOL(iwl_free_txq_mem
);
2900 int iwl_send_wimax_coex(struct iwl_priv
*priv
)
2902 struct iwl_wimax_coex_cmd
uninitialized_var(coex_cmd
);
2904 if (priv
->cfg
->support_wimax_coexist
) {
2905 /* UnMask wake up src at associated sleep */
2906 coex_cmd
.flags
|= COEX_FLAGS_ASSOC_WA_UNMASK_MSK
;
2908 /* UnMask wake up src at unassociated sleep */
2909 coex_cmd
.flags
|= COEX_FLAGS_UNASSOC_WA_UNMASK_MSK
;
2910 memcpy(coex_cmd
.sta_prio
, cu_priorities
,
2911 sizeof(struct iwl_wimax_coex_event_entry
) *
2912 COEX_NUM_OF_EVENTS
);
2914 /* enabling the coexistence feature */
2915 coex_cmd
.flags
|= COEX_FLAGS_COEX_ENABLE_MSK
;
2917 /* enabling the priorities tables */
2918 coex_cmd
.flags
|= COEX_FLAGS_STA_TABLE_VALID_MSK
;
2920 /* coexistence is disabled */
2921 memset(&coex_cmd
, 0, sizeof(coex_cmd
));
2923 return iwl_send_cmd_pdu(priv
, COEX_PRIORITY_TABLE_CMD
,
2924 sizeof(coex_cmd
), &coex_cmd
);
2926 EXPORT_SYMBOL(iwl_send_wimax_coex
);
2928 #ifdef CONFIG_IWLWIFI_DEBUGFS
2930 #define IWL_TRAFFIC_DUMP_SIZE (IWL_TRAFFIC_ENTRY_SIZE * IWL_TRAFFIC_ENTRIES)
2932 void iwl_reset_traffic_log(struct iwl_priv
*priv
)
2934 priv
->tx_traffic_idx
= 0;
2935 priv
->rx_traffic_idx
= 0;
2936 if (priv
->tx_traffic
)
2937 memset(priv
->tx_traffic
, 0, IWL_TRAFFIC_DUMP_SIZE
);
2938 if (priv
->rx_traffic
)
2939 memset(priv
->rx_traffic
, 0, IWL_TRAFFIC_DUMP_SIZE
);
2942 int iwl_alloc_traffic_mem(struct iwl_priv
*priv
)
2944 u32 traffic_size
= IWL_TRAFFIC_DUMP_SIZE
;
2946 if (iwl_debug_level
& IWL_DL_TX
) {
2947 if (!priv
->tx_traffic
) {
2949 kzalloc(traffic_size
, GFP_KERNEL
);
2950 if (!priv
->tx_traffic
)
2954 if (iwl_debug_level
& IWL_DL_RX
) {
2955 if (!priv
->rx_traffic
) {
2957 kzalloc(traffic_size
, GFP_KERNEL
);
2958 if (!priv
->rx_traffic
)
2962 iwl_reset_traffic_log(priv
);
2965 EXPORT_SYMBOL(iwl_alloc_traffic_mem
);
2967 void iwl_free_traffic_mem(struct iwl_priv
*priv
)
2969 kfree(priv
->tx_traffic
);
2970 priv
->tx_traffic
= NULL
;
2972 kfree(priv
->rx_traffic
);
2973 priv
->rx_traffic
= NULL
;
2975 EXPORT_SYMBOL(iwl_free_traffic_mem
);
2977 void iwl_dbg_log_tx_data_frame(struct iwl_priv
*priv
,
2978 u16 length
, struct ieee80211_hdr
*header
)
2983 if (likely(!(iwl_debug_level
& IWL_DL_TX
)))
2986 if (!priv
->tx_traffic
)
2989 fc
= header
->frame_control
;
2990 if (ieee80211_is_data(fc
)) {
2991 len
= (length
> IWL_TRAFFIC_ENTRY_SIZE
)
2992 ? IWL_TRAFFIC_ENTRY_SIZE
: length
;
2993 memcpy((priv
->tx_traffic
+
2994 (priv
->tx_traffic_idx
* IWL_TRAFFIC_ENTRY_SIZE
)),
2996 priv
->tx_traffic_idx
=
2997 (priv
->tx_traffic_idx
+ 1) % IWL_TRAFFIC_ENTRIES
;
3000 EXPORT_SYMBOL(iwl_dbg_log_tx_data_frame
);
3002 void iwl_dbg_log_rx_data_frame(struct iwl_priv
*priv
,
3003 u16 length
, struct ieee80211_hdr
*header
)
3008 if (likely(!(iwl_debug_level
& IWL_DL_RX
)))
3011 if (!priv
->rx_traffic
)
3014 fc
= header
->frame_control
;
3015 if (ieee80211_is_data(fc
)) {
3016 len
= (length
> IWL_TRAFFIC_ENTRY_SIZE
)
3017 ? IWL_TRAFFIC_ENTRY_SIZE
: length
;
3018 memcpy((priv
->rx_traffic
+
3019 (priv
->rx_traffic_idx
* IWL_TRAFFIC_ENTRY_SIZE
)),
3021 priv
->rx_traffic_idx
=
3022 (priv
->rx_traffic_idx
+ 1) % IWL_TRAFFIC_ENTRIES
;
3025 EXPORT_SYMBOL(iwl_dbg_log_rx_data_frame
);
3027 const char *get_mgmt_string(int cmd
)
3030 IWL_CMD(MANAGEMENT_ASSOC_REQ
);
3031 IWL_CMD(MANAGEMENT_ASSOC_RESP
);
3032 IWL_CMD(MANAGEMENT_REASSOC_REQ
);
3033 IWL_CMD(MANAGEMENT_REASSOC_RESP
);
3034 IWL_CMD(MANAGEMENT_PROBE_REQ
);
3035 IWL_CMD(MANAGEMENT_PROBE_RESP
);
3036 IWL_CMD(MANAGEMENT_BEACON
);
3037 IWL_CMD(MANAGEMENT_ATIM
);
3038 IWL_CMD(MANAGEMENT_DISASSOC
);
3039 IWL_CMD(MANAGEMENT_AUTH
);
3040 IWL_CMD(MANAGEMENT_DEAUTH
);
3041 IWL_CMD(MANAGEMENT_ACTION
);
3048 const char *get_ctrl_string(int cmd
)
3051 IWL_CMD(CONTROL_BACK_REQ
);
3052 IWL_CMD(CONTROL_BACK
);
3053 IWL_CMD(CONTROL_PSPOLL
);
3054 IWL_CMD(CONTROL_RTS
);
3055 IWL_CMD(CONTROL_CTS
);
3056 IWL_CMD(CONTROL_ACK
);
3057 IWL_CMD(CONTROL_CFEND
);
3058 IWL_CMD(CONTROL_CFENDACK
);
3065 void iwl_clear_tx_stats(struct iwl_priv
*priv
)
3067 memset(&priv
->tx_stats
, 0, sizeof(struct traffic_stats
));
3071 void iwl_clear_rx_stats(struct iwl_priv
*priv
)
3073 memset(&priv
->rx_stats
, 0, sizeof(struct traffic_stats
));
3077 * if CONFIG_IWLWIFI_DEBUGFS defined, iwl_update_stats function will
3078 * record all the MGMT, CTRL and DATA pkt for both TX and Rx pass.
3079 * Use debugFs to display the rx/rx_statistics
3080 * if CONFIG_IWLWIFI_DEBUGFS not being defined, then no MGMT and CTRL
3081 * information will be recorded, but DATA pkt still will be recorded
3082 * for the reason of iwl_led.c need to control the led blinking based on
3083 * number of tx and rx data.
3086 void iwl_update_stats(struct iwl_priv
*priv
, bool is_tx
, __le16 fc
, u16 len
)
3088 struct traffic_stats
*stats
;
3091 stats
= &priv
->tx_stats
;
3093 stats
= &priv
->rx_stats
;
3095 if (ieee80211_is_mgmt(fc
)) {
3096 switch (fc
& cpu_to_le16(IEEE80211_FCTL_STYPE
)) {
3097 case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ
):
3098 stats
->mgmt
[MANAGEMENT_ASSOC_REQ
]++;
3100 case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP
):
3101 stats
->mgmt
[MANAGEMENT_ASSOC_RESP
]++;
3103 case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ
):
3104 stats
->mgmt
[MANAGEMENT_REASSOC_REQ
]++;
3106 case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP
):
3107 stats
->mgmt
[MANAGEMENT_REASSOC_RESP
]++;
3109 case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
):
3110 stats
->mgmt
[MANAGEMENT_PROBE_REQ
]++;
3112 case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP
):
3113 stats
->mgmt
[MANAGEMENT_PROBE_RESP
]++;
3115 case cpu_to_le16(IEEE80211_STYPE_BEACON
):
3116 stats
->mgmt
[MANAGEMENT_BEACON
]++;
3118 case cpu_to_le16(IEEE80211_STYPE_ATIM
):
3119 stats
->mgmt
[MANAGEMENT_ATIM
]++;
3121 case cpu_to_le16(IEEE80211_STYPE_DISASSOC
):
3122 stats
->mgmt
[MANAGEMENT_DISASSOC
]++;
3124 case cpu_to_le16(IEEE80211_STYPE_AUTH
):
3125 stats
->mgmt
[MANAGEMENT_AUTH
]++;
3127 case cpu_to_le16(IEEE80211_STYPE_DEAUTH
):
3128 stats
->mgmt
[MANAGEMENT_DEAUTH
]++;
3130 case cpu_to_le16(IEEE80211_STYPE_ACTION
):
3131 stats
->mgmt
[MANAGEMENT_ACTION
]++;
3134 } else if (ieee80211_is_ctl(fc
)) {
3135 switch (fc
& cpu_to_le16(IEEE80211_FCTL_STYPE
)) {
3136 case cpu_to_le16(IEEE80211_STYPE_BACK_REQ
):
3137 stats
->ctrl
[CONTROL_BACK_REQ
]++;
3139 case cpu_to_le16(IEEE80211_STYPE_BACK
):
3140 stats
->ctrl
[CONTROL_BACK
]++;
3142 case cpu_to_le16(IEEE80211_STYPE_PSPOLL
):
3143 stats
->ctrl
[CONTROL_PSPOLL
]++;
3145 case cpu_to_le16(IEEE80211_STYPE_RTS
):
3146 stats
->ctrl
[CONTROL_RTS
]++;
3148 case cpu_to_le16(IEEE80211_STYPE_CTS
):
3149 stats
->ctrl
[CONTROL_CTS
]++;
3151 case cpu_to_le16(IEEE80211_STYPE_ACK
):
3152 stats
->ctrl
[CONTROL_ACK
]++;
3154 case cpu_to_le16(IEEE80211_STYPE_CFEND
):
3155 stats
->ctrl
[CONTROL_CFEND
]++;
3157 case cpu_to_le16(IEEE80211_STYPE_CFENDACK
):
3158 stats
->ctrl
[CONTROL_CFENDACK
]++;
3164 stats
->data_bytes
+= len
;
3167 EXPORT_SYMBOL(iwl_update_stats
);
3172 int iwl_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
3174 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
3177 * This function is called when system goes into suspend state
3178 * mac80211 will call iwl_mac_stop() from the mac80211 suspend function
3179 * first but since iwl_mac_stop() has no knowledge of who the caller is,
3180 * it will not call apm_ops.stop() to stop the DMA operation.
3181 * Calling apm_ops.stop here to make sure we stop the DMA.
3183 priv
->cfg
->ops
->lib
->apm_ops
.stop(priv
);
3185 pci_save_state(pdev
);
3186 pci_disable_device(pdev
);
3187 pci_set_power_state(pdev
, PCI_D3hot
);
3191 EXPORT_SYMBOL(iwl_pci_suspend
);
3193 int iwl_pci_resume(struct pci_dev
*pdev
)
3195 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
3198 pci_set_power_state(pdev
, PCI_D0
);
3199 ret
= pci_enable_device(pdev
);
3202 pci_restore_state(pdev
);
3203 iwl_enable_interrupts(priv
);
3207 EXPORT_SYMBOL(iwl_pci_resume
);
3209 #endif /* CONFIG_PM */