1 /******************************************************************************
3 * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
29 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/init.h>
32 #include <linux/slab.h>
33 #include <linux/delay.h>
34 #include <linux/sched.h>
35 #include <linux/skbuff.h>
36 #include <linux/netdevice.h>
37 #include <linux/etherdevice.h>
38 #include <linux/if_arp.h>
40 #include <net/mac80211.h>
42 #include <asm/div64.h>
44 #include "iwl-eeprom.h"
48 #include "iwl-agn-calib.h"
50 #include "iwl-shared.h"
51 #include "iwl-trans.h"
52 #include "iwl-op-mode.h"
54 /******************************************************************************
58 ******************************************************************************/
61 * module name, copyright, version, etc.
63 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
65 #ifdef CONFIG_IWLWIFI_DEBUG
71 #define DRV_VERSION IWLWIFI_VERSION VD
74 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
75 MODULE_VERSION(DRV_VERSION
);
76 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
77 MODULE_LICENSE("GPL");
78 MODULE_ALIAS("iwlagn");
80 void iwl_update_chain_flags(struct iwl_priv
*priv
)
82 struct iwl_rxon_context
*ctx
;
84 for_each_context(priv
, ctx
) {
85 iwlagn_set_rxon_chain(priv
, ctx
);
86 if (ctx
->active
.rx_chain
!= ctx
->staging
.rx_chain
)
87 iwlagn_commit_rxon(priv
, ctx
);
91 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
92 static void iwl_set_beacon_tim(struct iwl_priv
*priv
,
93 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
,
94 u8
*beacon
, u32 frame_size
)
97 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)beacon
;
100 * The index is relative to frame start but we start looking at the
101 * variable-length part of the beacon.
103 tim_idx
= mgmt
->u
.beacon
.variable
- beacon
;
105 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
106 while ((tim_idx
< (frame_size
- 2)) &&
107 (beacon
[tim_idx
] != WLAN_EID_TIM
))
108 tim_idx
+= beacon
[tim_idx
+1] + 2;
110 /* If TIM field was found, set variables */
111 if ((tim_idx
< (frame_size
- 1)) && (beacon
[tim_idx
] == WLAN_EID_TIM
)) {
112 tx_beacon_cmd
->tim_idx
= cpu_to_le16(tim_idx
);
113 tx_beacon_cmd
->tim_size
= beacon
[tim_idx
+1];
115 IWL_WARN(priv
, "Unable to find TIM Element in beacon\n");
118 int iwlagn_send_beacon_cmd(struct iwl_priv
*priv
)
120 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
;
121 struct iwl_host_cmd cmd
= {
122 .id
= REPLY_TX_BEACON
,
125 struct ieee80211_tx_info
*info
;
131 * We have to set up the TX command, the TX Beacon command, and the
135 lockdep_assert_held(&priv
->mutex
);
137 if (!priv
->beacon_ctx
) {
138 IWL_ERR(priv
, "trying to build beacon w/o beacon context!\n");
142 if (WARN_ON(!priv
->beacon_skb
))
145 /* Allocate beacon command */
146 if (!priv
->beacon_cmd
)
147 priv
->beacon_cmd
= kzalloc(sizeof(*tx_beacon_cmd
), GFP_KERNEL
);
148 tx_beacon_cmd
= priv
->beacon_cmd
;
152 frame_size
= priv
->beacon_skb
->len
;
154 /* Set up TX command fields */
155 tx_beacon_cmd
->tx
.len
= cpu_to_le16((u16
)frame_size
);
156 tx_beacon_cmd
->tx
.sta_id
= priv
->beacon_ctx
->bcast_sta_id
;
157 tx_beacon_cmd
->tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
158 tx_beacon_cmd
->tx
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
|
159 TX_CMD_FLG_TSF_MSK
| TX_CMD_FLG_STA_RATE_MSK
;
161 /* Set up TX beacon command fields */
162 iwl_set_beacon_tim(priv
, tx_beacon_cmd
, priv
->beacon_skb
->data
,
165 /* Set up packet rate and flags */
166 info
= IEEE80211_SKB_CB(priv
->beacon_skb
);
169 * Let's set up the rate at least somewhat correctly;
170 * it will currently not actually be used by the uCode,
171 * it uses the broadcast station's rate instead.
173 if (info
->control
.rates
[0].idx
< 0 ||
174 info
->control
.rates
[0].flags
& IEEE80211_TX_RC_MCS
)
177 rate
= info
->control
.rates
[0].idx
;
179 priv
->mgmt_tx_ant
= iwl_toggle_tx_ant(priv
, priv
->mgmt_tx_ant
,
180 hw_params(priv
).valid_tx_ant
);
181 rate_flags
= iwl_ant_idx_to_flags(priv
->mgmt_tx_ant
);
183 /* In mac80211, rates for 5 GHz start at 0 */
184 if (info
->band
== IEEE80211_BAND_5GHZ
)
185 rate
+= IWL_FIRST_OFDM_RATE
;
186 else if (rate
>= IWL_FIRST_CCK_RATE
&& rate
<= IWL_LAST_CCK_RATE
)
187 rate_flags
|= RATE_MCS_CCK_MSK
;
189 tx_beacon_cmd
->tx
.rate_n_flags
=
190 iwl_hw_set_rate_n_flags(rate
, rate_flags
);
193 cmd
.len
[0] = sizeof(*tx_beacon_cmd
);
194 cmd
.data
[0] = tx_beacon_cmd
;
195 cmd
.dataflags
[0] = IWL_HCMD_DFL_NOCOPY
;
196 cmd
.len
[1] = frame_size
;
197 cmd
.data
[1] = priv
->beacon_skb
->data
;
198 cmd
.dataflags
[1] = IWL_HCMD_DFL_NOCOPY
;
200 return iwl_dvm_send_cmd(priv
, &cmd
);
203 static void iwl_bg_beacon_update(struct work_struct
*work
)
205 struct iwl_priv
*priv
=
206 container_of(work
, struct iwl_priv
, beacon_update
);
207 struct sk_buff
*beacon
;
209 mutex_lock(&priv
->mutex
);
210 if (!priv
->beacon_ctx
) {
211 IWL_ERR(priv
, "updating beacon w/o beacon context!\n");
215 if (priv
->beacon_ctx
->vif
->type
!= NL80211_IFTYPE_AP
) {
217 * The ucode will send beacon notifications even in
218 * IBSS mode, but we don't want to process them. But
219 * we need to defer the type check to here due to
220 * requiring locking around the beacon_ctx access.
225 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
226 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->beacon_ctx
->vif
);
228 IWL_ERR(priv
, "update beacon failed -- keeping old\n");
232 /* new beacon skb is allocated every time; dispose previous.*/
233 dev_kfree_skb(priv
->beacon_skb
);
235 priv
->beacon_skb
= beacon
;
237 iwlagn_send_beacon_cmd(priv
);
239 mutex_unlock(&priv
->mutex
);
242 static void iwl_bg_bt_runtime_config(struct work_struct
*work
)
244 struct iwl_priv
*priv
=
245 container_of(work
, struct iwl_priv
, bt_runtime_config
);
247 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
250 /* dont send host command if rf-kill is on */
251 if (!iwl_is_ready_rf(priv
))
253 iwlagn_send_advance_bt_config(priv
);
256 static void iwl_bg_bt_full_concurrency(struct work_struct
*work
)
258 struct iwl_priv
*priv
=
259 container_of(work
, struct iwl_priv
, bt_full_concurrency
);
260 struct iwl_rxon_context
*ctx
;
262 mutex_lock(&priv
->mutex
);
264 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
267 /* dont send host command if rf-kill is on */
268 if (!iwl_is_ready_rf(priv
))
271 IWL_DEBUG_INFO(priv
, "BT coex in %s mode\n",
272 priv
->bt_full_concurrent
?
273 "full concurrency" : "3-wire");
276 * LQ & RXON updated cmds must be sent before BT Config cmd
277 * to avoid 3-wire collisions
279 for_each_context(priv
, ctx
) {
280 iwlagn_set_rxon_chain(priv
, ctx
);
281 iwlagn_commit_rxon(priv
, ctx
);
284 iwlagn_send_advance_bt_config(priv
);
286 mutex_unlock(&priv
->mutex
);
290 * iwl_bg_statistics_periodic - Timer callback to queue statistics
292 * This callback is provided in order to send a statistics request.
294 * This timer function is continually reset to execute within
295 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
296 * was received. We need to ensure we receive the statistics in order
297 * to update the temperature used for calibrating the TXPOWER.
299 static void iwl_bg_statistics_periodic(unsigned long data
)
301 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
303 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
306 /* dont send host command if rf-kill is on */
307 if (!iwl_is_ready_rf(priv
))
310 iwl_send_statistics_request(priv
, CMD_ASYNC
, false);
314 static void iwl_print_cont_event_trace(struct iwl_priv
*priv
, u32 base
,
315 u32 start_idx
, u32 num_events
,
316 u32 capacity
, u32 mode
)
319 u32 ptr
; /* SRAM byte address of log data */
320 u32 ev
, time
, data
; /* event log data */
321 unsigned long reg_flags
;
324 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 2 * sizeof(u32
));
326 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 3 * sizeof(u32
));
328 /* Make sure device is powered up for SRAM reads */
329 spin_lock_irqsave(&trans(priv
)->reg_lock
, reg_flags
);
330 if (unlikely(!iwl_grab_nic_access(trans(priv
)))) {
331 spin_unlock_irqrestore(&trans(priv
)->reg_lock
, reg_flags
);
335 /* Set starting address; reads will auto-increment */
336 iwl_write32(trans(priv
), HBUS_TARG_MEM_RADDR
, ptr
);
339 * Refuse to read more than would have fit into the log from
340 * the current start_idx. This used to happen due to the race
341 * described below, but now WARN because the code below should
342 * prevent it from happening here.
344 if (WARN_ON(num_events
> capacity
- start_idx
))
345 num_events
= capacity
- start_idx
;
348 * "time" is actually "data" for mode 0 (no timestamp).
349 * place event id # at far right for easier visual parsing.
351 for (i
= 0; i
< num_events
; i
++) {
352 ev
= iwl_read32(trans(priv
), HBUS_TARG_MEM_RDAT
);
353 time
= iwl_read32(trans(priv
), HBUS_TARG_MEM_RDAT
);
355 trace_iwlwifi_dev_ucode_cont_event(
356 trans(priv
)->dev
, 0, time
, ev
);
358 data
= iwl_read32(trans(priv
), HBUS_TARG_MEM_RDAT
);
359 trace_iwlwifi_dev_ucode_cont_event(
360 trans(priv
)->dev
, time
, data
, ev
);
363 /* Allow device to power down */
364 iwl_release_nic_access(trans(priv
));
365 spin_unlock_irqrestore(&trans(priv
)->reg_lock
, reg_flags
);
368 static void iwl_continuous_event_trace(struct iwl_priv
*priv
)
370 u32 capacity
; /* event log capacity in # entries */
377 u32 base
; /* SRAM byte address of event log header */
378 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
379 u32 num_wraps
; /* # times uCode wrapped to top of log */
380 u32 next_entry
; /* index of next entry to be written by uCode */
382 base
= priv
->shrd
->device_pointers
.log_event_table
;
383 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
384 iwl_read_targ_mem_words(trans(priv
), base
, &read
, sizeof(read
));
386 capacity
= read
.capacity
;
388 num_wraps
= read
.wrap_counter
;
389 next_entry
= read
.write_counter
;
394 * Unfortunately, the uCode doesn't use temporary variables.
395 * Therefore, it can happen that we read next_entry == capacity,
396 * which really means next_entry == 0.
398 if (unlikely(next_entry
== capacity
))
401 * Additionally, the uCode increases the write pointer before
402 * the wraps counter, so if the write pointer is smaller than
403 * the old write pointer (wrap occurred) but we read that no
404 * wrap occurred, we actually read between the next_entry and
405 * num_wraps update (this does happen in practice!!) -- take
406 * that into account by increasing num_wraps.
408 if (unlikely(next_entry
< priv
->event_log
.next_entry
&&
409 num_wraps
== priv
->event_log
.num_wraps
))
412 if (num_wraps
== priv
->event_log
.num_wraps
) {
413 iwl_print_cont_event_trace(
414 priv
, base
, priv
->event_log
.next_entry
,
415 next_entry
- priv
->event_log
.next_entry
,
418 priv
->event_log
.non_wraps_count
++;
420 if (num_wraps
- priv
->event_log
.num_wraps
> 1)
421 priv
->event_log
.wraps_more_count
++;
423 priv
->event_log
.wraps_once_count
++;
425 trace_iwlwifi_dev_ucode_wrap_event(trans(priv
)->dev
,
426 num_wraps
- priv
->event_log
.num_wraps
,
427 next_entry
, priv
->event_log
.next_entry
);
429 if (next_entry
< priv
->event_log
.next_entry
) {
430 iwl_print_cont_event_trace(
431 priv
, base
, priv
->event_log
.next_entry
,
432 capacity
- priv
->event_log
.next_entry
,
435 iwl_print_cont_event_trace(
436 priv
, base
, 0, next_entry
, capacity
, mode
);
438 iwl_print_cont_event_trace(
439 priv
, base
, next_entry
,
440 capacity
- next_entry
,
443 iwl_print_cont_event_trace(
444 priv
, base
, 0, next_entry
, capacity
, mode
);
448 priv
->event_log
.num_wraps
= num_wraps
;
449 priv
->event_log
.next_entry
= next_entry
;
453 * iwl_bg_ucode_trace - Timer callback to log ucode event
455 * The timer is continually set to execute every
456 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
457 * this function is to perform continuous uCode event logging operation
460 static void iwl_bg_ucode_trace(unsigned long data
)
462 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
464 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
467 if (priv
->event_log
.ucode_trace
) {
468 iwl_continuous_event_trace(priv
);
469 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
470 mod_timer(&priv
->ucode_trace
,
471 jiffies
+ msecs_to_jiffies(UCODE_TRACE_PERIOD
));
475 static void iwl_bg_tx_flush(struct work_struct
*work
)
477 struct iwl_priv
*priv
=
478 container_of(work
, struct iwl_priv
, tx_flush
);
480 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
483 /* do nothing if rf-kill is on */
484 if (!iwl_is_ready_rf(priv
))
487 IWL_DEBUG_INFO(priv
, "device request: flush all tx frames\n");
488 iwlagn_dev_txfifo_flush(priv
, IWL_DROP_ALL
);
491 static void iwl_init_context(struct iwl_priv
*priv
, u32 ucode_flags
)
496 * The default context is always valid,
497 * the PAN context depends on uCode.
499 priv
->shrd
->valid_contexts
= BIT(IWL_RXON_CTX_BSS
);
500 if (ucode_flags
& IWL_UCODE_TLV_FLAGS_PAN
)
501 priv
->shrd
->valid_contexts
|= BIT(IWL_RXON_CTX_PAN
);
503 for (i
= 0; i
< NUM_IWL_RXON_CTX
; i
++)
504 priv
->contexts
[i
].ctxid
= i
;
506 priv
->contexts
[IWL_RXON_CTX_BSS
].always_active
= true;
507 priv
->contexts
[IWL_RXON_CTX_BSS
].is_active
= true;
508 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_cmd
= REPLY_RXON
;
509 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_timing_cmd
= REPLY_RXON_TIMING
;
510 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_assoc_cmd
= REPLY_RXON_ASSOC
;
511 priv
->contexts
[IWL_RXON_CTX_BSS
].qos_cmd
= REPLY_QOS_PARAM
;
512 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_sta_id
= IWL_AP_ID
;
513 priv
->contexts
[IWL_RXON_CTX_BSS
].wep_key_cmd
= REPLY_WEPKEY
;
514 priv
->contexts
[IWL_RXON_CTX_BSS
].bcast_sta_id
= IWLAGN_BROADCAST_ID
;
515 priv
->contexts
[IWL_RXON_CTX_BSS
].exclusive_interface_modes
=
516 BIT(NL80211_IFTYPE_ADHOC
);
517 priv
->contexts
[IWL_RXON_CTX_BSS
].interface_modes
=
518 BIT(NL80211_IFTYPE_STATION
);
519 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_devtype
= RXON_DEV_TYPE_AP
;
520 priv
->contexts
[IWL_RXON_CTX_BSS
].ibss_devtype
= RXON_DEV_TYPE_IBSS
;
521 priv
->contexts
[IWL_RXON_CTX_BSS
].station_devtype
= RXON_DEV_TYPE_ESS
;
522 priv
->contexts
[IWL_RXON_CTX_BSS
].unused_devtype
= RXON_DEV_TYPE_ESS
;
524 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_cmd
= REPLY_WIPAN_RXON
;
525 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_timing_cmd
=
526 REPLY_WIPAN_RXON_TIMING
;
527 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_assoc_cmd
=
528 REPLY_WIPAN_RXON_ASSOC
;
529 priv
->contexts
[IWL_RXON_CTX_PAN
].qos_cmd
= REPLY_WIPAN_QOS_PARAM
;
530 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_sta_id
= IWL_AP_ID_PAN
;
531 priv
->contexts
[IWL_RXON_CTX_PAN
].wep_key_cmd
= REPLY_WIPAN_WEPKEY
;
532 priv
->contexts
[IWL_RXON_CTX_PAN
].bcast_sta_id
= IWLAGN_PAN_BCAST_ID
;
533 priv
->contexts
[IWL_RXON_CTX_PAN
].station_flags
= STA_FLG_PAN_STATION
;
534 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
=
535 BIT(NL80211_IFTYPE_STATION
) | BIT(NL80211_IFTYPE_AP
);
537 if (ucode_flags
& IWL_UCODE_TLV_FLAGS_P2P
)
538 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
|=
539 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
540 BIT(NL80211_IFTYPE_P2P_GO
);
542 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_devtype
= RXON_DEV_TYPE_CP
;
543 priv
->contexts
[IWL_RXON_CTX_PAN
].station_devtype
= RXON_DEV_TYPE_2STA
;
544 priv
->contexts
[IWL_RXON_CTX_PAN
].unused_devtype
= RXON_DEV_TYPE_P2P
;
546 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
549 static void iwl_rf_kill_ct_config(struct iwl_priv
*priv
)
551 struct iwl_ct_kill_config cmd
;
552 struct iwl_ct_kill_throttling_config adv_cmd
;
555 iwl_write32(trans(priv
), CSR_UCODE_DRV_GP1_CLR
,
556 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
558 priv
->thermal_throttle
.ct_kill_toggle
= false;
560 if (cfg(priv
)->base_params
->support_ct_kill_exit
) {
561 adv_cmd
.critical_temperature_enter
=
562 cpu_to_le32(hw_params(priv
).ct_kill_threshold
);
563 adv_cmd
.critical_temperature_exit
=
564 cpu_to_le32(hw_params(priv
).ct_kill_exit_threshold
);
566 ret
= iwl_dvm_send_cmd_pdu(priv
,
567 REPLY_CT_KILL_CONFIG_CMD
,
568 CMD_SYNC
, sizeof(adv_cmd
), &adv_cmd
);
570 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
572 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
573 "succeeded, critical temperature enter is %d,"
575 hw_params(priv
).ct_kill_threshold
,
576 hw_params(priv
).ct_kill_exit_threshold
);
578 cmd
.critical_temperature_R
=
579 cpu_to_le32(hw_params(priv
).ct_kill_threshold
);
581 ret
= iwl_dvm_send_cmd_pdu(priv
,
582 REPLY_CT_KILL_CONFIG_CMD
,
583 CMD_SYNC
, sizeof(cmd
), &cmd
);
585 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
587 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
589 "critical temperature is %d\n",
590 hw_params(priv
).ct_kill_threshold
);
594 static int iwlagn_send_calib_cfg_rt(struct iwl_priv
*priv
, u32 cfg
)
596 struct iwl_calib_cfg_cmd calib_cfg_cmd
;
597 struct iwl_host_cmd cmd
= {
598 .id
= CALIBRATION_CFG_CMD
,
599 .len
= { sizeof(struct iwl_calib_cfg_cmd
), },
600 .data
= { &calib_cfg_cmd
, },
603 memset(&calib_cfg_cmd
, 0, sizeof(calib_cfg_cmd
));
604 calib_cfg_cmd
.ucd_calib_cfg
.once
.is_enable
= IWL_CALIB_RT_CFG_ALL
;
605 calib_cfg_cmd
.ucd_calib_cfg
.once
.start
= cpu_to_le32(cfg
);
607 return iwl_dvm_send_cmd(priv
, &cmd
);
611 static int iwlagn_send_tx_ant_config(struct iwl_priv
*priv
, u8 valid_tx_ant
)
613 struct iwl_tx_ant_config_cmd tx_ant_cmd
= {
614 .valid
= cpu_to_le32(valid_tx_ant
),
617 if (IWL_UCODE_API(priv
->fw
->ucode_ver
) > 1) {
618 IWL_DEBUG_HC(priv
, "select valid tx ant: %u\n", valid_tx_ant
);
619 return iwl_dvm_send_cmd_pdu(priv
,
620 TX_ANT_CONFIGURATION_CMD
,
622 sizeof(struct iwl_tx_ant_config_cmd
),
625 IWL_DEBUG_HC(priv
, "TX_ANT_CONFIGURATION_CMD not supported\n");
631 * iwl_alive_start - called after REPLY_ALIVE notification received
632 * from protocol/runtime uCode (initialization uCode's
633 * Alive gets handled by iwl_init_alive_start()).
635 int iwl_alive_start(struct iwl_priv
*priv
)
638 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
640 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
642 /* After the ALIVE response, we can send host commands to the uCode */
643 set_bit(STATUS_ALIVE
, &priv
->status
);
645 /* Enable watchdog to monitor the driver tx queues */
646 iwl_setup_watchdog(priv
);
648 if (iwl_is_rfkill(priv
))
651 if (priv
->event_log
.ucode_trace
) {
652 /* start collecting data now */
653 mod_timer(&priv
->ucode_trace
, jiffies
);
656 /* download priority table before any calibration request */
657 if (cfg(priv
)->bt_params
&&
658 cfg(priv
)->bt_params
->advanced_bt_coexist
) {
659 /* Configure Bluetooth device coexistence support */
660 if (cfg(priv
)->bt_params
->bt_sco_disable
)
661 priv
->bt_enable_pspoll
= false;
663 priv
->bt_enable_pspoll
= true;
665 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
666 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
667 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
668 iwlagn_send_advance_bt_config(priv
);
669 priv
->bt_valid
= IWLAGN_BT_VALID_ENABLE_FLAGS
;
670 priv
->cur_rssi_ctx
= NULL
;
672 iwl_send_prio_tbl(priv
);
674 /* FIXME: w/a to force change uCode BT state machine */
675 ret
= iwl_send_bt_env(priv
, IWL_BT_COEX_ENV_OPEN
,
676 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
679 ret
= iwl_send_bt_env(priv
, IWL_BT_COEX_ENV_CLOSE
,
680 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
685 * default is 2-wire BT coexexistence support
687 iwl_send_bt_config(priv
);
691 * Perform runtime calibrations, including DC calibration.
693 iwlagn_send_calib_cfg_rt(priv
, IWL_CALIB_CFG_DC_IDX
);
695 ieee80211_wake_queues(priv
->hw
);
697 priv
->active_rate
= IWL_RATES_MASK
;
699 /* Configure Tx antenna selection based on H/W config */
700 iwlagn_send_tx_ant_config(priv
, hw_params(priv
).valid_tx_ant
);
702 if (iwl_is_associated_ctx(ctx
) && !priv
->wowlan
) {
703 struct iwl_rxon_cmd
*active_rxon
=
704 (struct iwl_rxon_cmd
*)&ctx
->active
;
705 /* apply any changes in staging */
706 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
707 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
709 struct iwl_rxon_context
*tmp
;
710 /* Initialize our rx_config data */
711 for_each_context(priv
, tmp
)
712 iwl_connection_init_rx_config(priv
, tmp
);
714 iwlagn_set_rxon_chain(priv
, ctx
);
718 /* WoWLAN ucode will not reply in the same way, skip it */
719 iwl_reset_run_time_calib(priv
);
722 set_bit(STATUS_READY
, &priv
->status
);
724 /* Configure the adapter for unassociated operation */
725 ret
= iwlagn_commit_rxon(priv
, ctx
);
729 /* At this point, the NIC is initialized and operational */
730 iwl_rf_kill_ct_config(priv
);
732 IWL_DEBUG_INFO(priv
, "ALIVE processing complete.\n");
734 return iwl_power_update_mode(priv
, true);
738 * iwl_clear_driver_stations - clear knowledge of all stations from driver
739 * @priv: iwl priv struct
741 * This is called during iwl_down() to make sure that in the case
742 * we're coming there from a hardware restart mac80211 will be
743 * able to reconfigure stations -- if we're getting there in the
744 * normal down flow then the stations will already be cleared.
746 static void iwl_clear_driver_stations(struct iwl_priv
*priv
)
748 struct iwl_rxon_context
*ctx
;
750 spin_lock_bh(&priv
->sta_lock
);
751 memset(priv
->stations
, 0, sizeof(priv
->stations
));
752 priv
->num_stations
= 0;
754 priv
->ucode_key_table
= 0;
756 for_each_context(priv
, ctx
) {
758 * Remove all key information that is not stored as part
759 * of station information since mac80211 may not have had
760 * a chance to remove all the keys. When device is
761 * reconfigured by mac80211 after an error all keys will
764 memset(ctx
->wep_keys
, 0, sizeof(ctx
->wep_keys
));
765 ctx
->key_mapping_keys
= 0;
768 spin_unlock_bh(&priv
->sta_lock
);
771 void iwl_down(struct iwl_priv
*priv
)
775 IWL_DEBUG_INFO(priv
, DRV_NAME
" is going down\n");
777 lockdep_assert_held(&priv
->mutex
);
779 iwl_scan_cancel_timeout(priv
, 200);
782 * If active, scanning won't cancel it, so say it expired.
783 * No race since we hold the mutex here and a new one
784 * can't come in at this time.
786 ieee80211_remain_on_channel_expired(priv
->hw
);
789 test_and_set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
791 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
792 * to prevent rearm timer */
793 del_timer_sync(&priv
->watchdog
);
795 iwl_clear_ucode_stations(priv
, NULL
);
796 iwl_dealloc_bcast_stations(priv
);
797 iwl_clear_driver_stations(priv
);
799 /* reset BT coex data */
801 priv
->cur_rssi_ctx
= NULL
;
803 if (cfg(priv
)->bt_params
)
804 priv
->bt_traffic_load
=
805 cfg(priv
)->bt_params
->bt_init_traffic_load
;
807 priv
->bt_traffic_load
= 0;
808 priv
->bt_full_concurrent
= false;
809 priv
->bt_ci_compliance
= 0;
811 /* Wipe out the EXIT_PENDING status bit if we are not actually
812 * exiting the module */
814 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
816 if (priv
->mac80211_registered
)
817 ieee80211_stop_queues(priv
->hw
);
819 priv
->ucode_loaded
= false;
820 iwl_trans_stop_device(trans(priv
));
822 /* Clear out all status bits but a few that are stable across reset */
823 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
825 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
826 STATUS_GEO_CONFIGURED
|
827 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
829 priv
->shrd
->status
&=
830 test_bit(STATUS_FW_ERROR
, &priv
->shrd
->status
) <<
833 dev_kfree_skb(priv
->beacon_skb
);
834 priv
->beacon_skb
= NULL
;
837 /*****************************************************************************
839 * Workqueue callbacks
841 *****************************************************************************/
843 static void iwl_bg_run_time_calib_work(struct work_struct
*work
)
845 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
846 run_time_calib_work
);
848 mutex_lock(&priv
->mutex
);
850 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
851 test_bit(STATUS_SCANNING
, &priv
->status
)) {
852 mutex_unlock(&priv
->mutex
);
856 if (priv
->start_calib
) {
857 iwl_chain_noise_calibration(priv
);
858 iwl_sensitivity_calibration(priv
);
861 mutex_unlock(&priv
->mutex
);
864 void iwlagn_prepare_restart(struct iwl_priv
*priv
)
866 struct iwl_rxon_context
*ctx
;
867 bool bt_full_concurrent
;
873 lockdep_assert_held(&priv
->mutex
);
875 for_each_context(priv
, ctx
)
880 * __iwl_down() will clear the BT status variables,
881 * which is correct, but when we restart we really
882 * want to keep them so restore them afterwards.
884 * The restart process will later pick them up and
885 * re-configure the hw when we reconfigure the BT
888 bt_full_concurrent
= priv
->bt_full_concurrent
;
889 bt_ci_compliance
= priv
->bt_ci_compliance
;
890 bt_load
= priv
->bt_traffic_load
;
891 bt_status
= priv
->bt_status
;
892 bt_is_sco
= priv
->bt_is_sco
;
896 priv
->bt_full_concurrent
= bt_full_concurrent
;
897 priv
->bt_ci_compliance
= bt_ci_compliance
;
898 priv
->bt_traffic_load
= bt_load
;
899 priv
->bt_status
= bt_status
;
900 priv
->bt_is_sco
= bt_is_sco
;
903 static void iwl_bg_restart(struct work_struct
*data
)
905 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
907 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
910 if (test_and_clear_bit(STATUS_FW_ERROR
, &priv
->shrd
->status
)) {
911 mutex_lock(&priv
->mutex
);
912 iwlagn_prepare_restart(priv
);
913 mutex_unlock(&priv
->mutex
);
914 iwl_cancel_deferred_work(priv
);
915 ieee80211_restart_hw(priv
->hw
);
924 void iwlagn_disable_roc(struct iwl_priv
*priv
)
926 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
928 lockdep_assert_held(&priv
->mutex
);
930 if (!priv
->hw_roc_setup
)
933 ctx
->staging
.dev_type
= RXON_DEV_TYPE_P2P
;
934 ctx
->staging
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
936 priv
->hw_roc_channel
= NULL
;
938 memset(ctx
->staging
.node_addr
, 0, ETH_ALEN
);
940 iwlagn_commit_rxon(priv
, ctx
);
942 ctx
->is_active
= false;
943 priv
->hw_roc_setup
= false;
946 static void iwlagn_disable_roc_work(struct work_struct
*work
)
948 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
949 hw_roc_disable_work
.work
);
951 mutex_lock(&priv
->mutex
);
952 iwlagn_disable_roc(priv
);
953 mutex_unlock(&priv
->mutex
);
956 /*****************************************************************************
958 * driver setup and teardown
960 *****************************************************************************/
962 static void iwl_setup_deferred_work(struct iwl_priv
*priv
)
964 priv
->workqueue
= create_singlethread_workqueue(DRV_NAME
);
966 INIT_WORK(&priv
->restart
, iwl_bg_restart
);
967 INIT_WORK(&priv
->beacon_update
, iwl_bg_beacon_update
);
968 INIT_WORK(&priv
->run_time_calib_work
, iwl_bg_run_time_calib_work
);
969 INIT_WORK(&priv
->tx_flush
, iwl_bg_tx_flush
);
970 INIT_WORK(&priv
->bt_full_concurrency
, iwl_bg_bt_full_concurrency
);
971 INIT_WORK(&priv
->bt_runtime_config
, iwl_bg_bt_runtime_config
);
972 INIT_DELAYED_WORK(&priv
->hw_roc_disable_work
,
973 iwlagn_disable_roc_work
);
975 iwl_setup_scan_deferred_work(priv
);
977 if (cfg(priv
)->bt_params
)
978 iwlagn_bt_setup_deferred_work(priv
);
980 init_timer(&priv
->statistics_periodic
);
981 priv
->statistics_periodic
.data
= (unsigned long)priv
;
982 priv
->statistics_periodic
.function
= iwl_bg_statistics_periodic
;
984 init_timer(&priv
->ucode_trace
);
985 priv
->ucode_trace
.data
= (unsigned long)priv
;
986 priv
->ucode_trace
.function
= iwl_bg_ucode_trace
;
988 init_timer(&priv
->watchdog
);
989 priv
->watchdog
.data
= (unsigned long)priv
;
990 priv
->watchdog
.function
= iwl_bg_watchdog
;
993 void iwl_cancel_deferred_work(struct iwl_priv
*priv
)
995 if (cfg(priv
)->bt_params
)
996 iwlagn_bt_cancel_deferred_work(priv
);
998 cancel_work_sync(&priv
->run_time_calib_work
);
999 cancel_work_sync(&priv
->beacon_update
);
1001 iwl_cancel_scan_deferred_work(priv
);
1003 cancel_work_sync(&priv
->bt_full_concurrency
);
1004 cancel_work_sync(&priv
->bt_runtime_config
);
1005 cancel_delayed_work_sync(&priv
->hw_roc_disable_work
);
1007 del_timer_sync(&priv
->statistics_periodic
);
1008 del_timer_sync(&priv
->ucode_trace
);
1011 static void iwl_init_hw_rates(struct ieee80211_rate
*rates
)
1015 for (i
= 0; i
< IWL_RATE_COUNT_LEGACY
; i
++) {
1016 rates
[i
].bitrate
= iwl_rates
[i
].ieee
* 5;
1017 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
1018 rates
[i
].hw_value_short
= i
;
1020 if ((i
>= IWL_FIRST_CCK_RATE
) && (i
<= IWL_LAST_CCK_RATE
)) {
1022 * If CCK != 1M then set short preamble rate flag.
1025 (iwl_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
1026 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
1031 static int iwl_init_drv(struct iwl_priv
*priv
)
1035 spin_lock_init(&priv
->sta_lock
);
1037 mutex_init(&priv
->mutex
);
1039 INIT_LIST_HEAD(&priv
->calib_results
);
1041 priv
->ieee_channels
= NULL
;
1042 priv
->ieee_rates
= NULL
;
1043 priv
->band
= IEEE80211_BAND_2GHZ
;
1045 priv
->plcp_delta_threshold
=
1046 cfg(priv
)->base_params
->plcp_delta_threshold
;
1048 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
1049 priv
->current_ht_config
.smps
= IEEE80211_SMPS_STATIC
;
1050 priv
->missed_beacon_threshold
= IWL_MISSED_BEACON_THRESHOLD_DEF
;
1051 priv
->agg_tids_count
= 0;
1053 priv
->ucode_owner
= IWL_OWNERSHIP_DRIVER
;
1055 /* initialize force reset */
1056 priv
->force_reset
[IWL_RF_RESET
].reset_duration
=
1057 IWL_DELAY_NEXT_FORCE_RF_RESET
;
1058 priv
->force_reset
[IWL_FW_RESET
].reset_duration
=
1059 IWL_DELAY_NEXT_FORCE_FW_RELOAD
;
1061 priv
->rx_statistics_jiffies
= jiffies
;
1063 /* Choose which receivers/antennas to use */
1064 iwlagn_set_rxon_chain(priv
, &priv
->contexts
[IWL_RXON_CTX_BSS
]);
1066 iwl_init_scan_params(priv
);
1069 if (cfg(priv
)->bt_params
&&
1070 cfg(priv
)->bt_params
->advanced_bt_coexist
) {
1071 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
1072 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
1073 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
1074 priv
->bt_on_thresh
= BT_ON_THRESHOLD_DEF
;
1075 priv
->bt_duration
= BT_DURATION_LIMIT_DEF
;
1076 priv
->dynamic_frag_thresh
= BT_FRAG_THRESHOLD_DEF
;
1079 ret
= iwl_init_channel_map(priv
);
1081 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
1085 ret
= iwl_init_geos(priv
);
1087 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
1088 goto err_free_channel_map
;
1090 iwl_init_hw_rates(priv
->ieee_rates
);
1094 err_free_channel_map
:
1095 iwl_free_channel_map(priv
);
1100 static void iwl_uninit_drv(struct iwl_priv
*priv
)
1102 iwl_free_geos(priv
);
1103 iwl_free_channel_map(priv
);
1104 kfree(priv
->scan_cmd
);
1105 kfree(priv
->beacon_cmd
);
1106 kfree(rcu_dereference_raw(priv
->noa_data
));
1107 iwl_calib_free_results(priv
);
1108 #ifdef CONFIG_IWLWIFI_DEBUGFS
1109 kfree(priv
->wowlan_sram
);
1113 /* Size of one Rx buffer in host DRAM */
1114 #define IWL_RX_BUF_SIZE_4K (4 * 1024)
1115 #define IWL_RX_BUF_SIZE_8K (8 * 1024)
1117 static void iwl_set_hw_params(struct iwl_priv
*priv
)
1119 if (cfg(priv
)->ht_params
)
1120 hw_params(priv
).use_rts_for_aggregation
=
1121 cfg(priv
)->ht_params
->use_rts_for_aggregation
;
1123 if (iwlagn_mod_params
.amsdu_size_8K
)
1124 hw_params(priv
).rx_page_order
=
1125 get_order(IWL_RX_BUF_SIZE_8K
);
1127 hw_params(priv
).rx_page_order
=
1128 get_order(IWL_RX_BUF_SIZE_4K
);
1130 if (iwlagn_mod_params
.disable_11n
& IWL_DISABLE_HT_ALL
)
1131 hw_params(priv
).sku
&= ~EEPROM_SKU_CAP_11N_ENABLE
;
1133 hw_params(priv
).num_ampdu_queues
=
1134 cfg(priv
)->base_params
->num_of_ampdu_queues
;
1135 hw_params(priv
).wd_timeout
= cfg(priv
)->base_params
->wd_timeout
;
1137 /* Device-specific setup */
1138 cfg(priv
)->lib
->set_hw_params(priv
);
1143 static void iwl_debug_config(struct iwl_priv
*priv
)
1145 dev_printk(KERN_INFO
, trans(priv
)->dev
, "CONFIG_IWLWIFI_DEBUG "
1146 #ifdef CONFIG_IWLWIFI_DEBUG
1151 dev_printk(KERN_INFO
, trans(priv
)->dev
, "CONFIG_IWLWIFI_DEBUGFS "
1152 #ifdef CONFIG_IWLWIFI_DEBUGFS
1157 dev_printk(KERN_INFO
, trans(priv
)->dev
, "CONFIG_IWLWIFI_DEVICE_TRACING "
1158 #ifdef CONFIG_IWLWIFI_DEVICE_TRACING
1164 dev_printk(KERN_INFO
, trans(priv
)->dev
, "CONFIG_IWLWIFI_DEVICE_TESTMODE "
1165 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
1170 dev_printk(KERN_INFO
, trans(priv
)->dev
, "CONFIG_IWLWIFI_P2P "
1171 #ifdef CONFIG_IWLWIFI_P2P
1178 static struct iwl_op_mode
*iwl_op_mode_dvm_start(struct iwl_trans
*trans
,
1179 const struct iwl_fw
*fw
)
1182 struct iwl_priv
*priv
;
1183 struct ieee80211_hw
*hw
;
1184 struct iwl_op_mode
*op_mode
;
1187 struct iwl_trans_config trans_cfg
;
1188 static const u8 no_reclaim_cmds
[] = {
1192 REPLY_COMPRESSED_BA
,
1193 STATISTICS_NOTIFICATION
,
1197 /************************
1198 * 1. Allocating HW data
1199 ************************/
1200 hw
= iwl_alloc_all();
1202 pr_err("%s: Cannot allocate network device\n",
1209 op_mode
->ops
= &iwl_dvm_ops
;
1210 priv
= IWL_OP_MODE_GET_DVM(op_mode
);
1211 priv
->shrd
= trans
->shrd
;
1213 /* TODO: remove fw from shared data later */
1214 priv
->shrd
->fw
= fw
;
1217 * Populate the state variables that the transport layer needs
1220 trans_cfg
.op_mode
= op_mode
;
1221 trans_cfg
.no_reclaim_cmds
= no_reclaim_cmds
;
1222 trans_cfg
.n_no_reclaim_cmds
= ARRAY_SIZE(no_reclaim_cmds
);
1224 ucode_flags
= fw
->ucode_capa
.flags
;
1226 #ifndef CONFIG_IWLWIFI_P2P
1227 ucode_flags
&= ~IWL_UCODE_TLV_FLAGS_PAN
;
1230 if (ucode_flags
& IWL_UCODE_TLV_FLAGS_PAN
) {
1231 priv
->sta_key_max_num
= STA_KEY_MAX_NUM_PAN
;
1232 trans_cfg
.cmd_queue
= IWL_IPAN_CMD_QUEUE_NUM
;
1234 priv
->sta_key_max_num
= STA_KEY_MAX_NUM
;
1235 trans_cfg
.cmd_queue
= IWL_DEFAULT_CMD_QUEUE_NUM
;
1238 /* Configure transport layer */
1239 iwl_trans_configure(trans(priv
), &trans_cfg
);
1241 /* At this point both hw and priv are allocated. */
1243 SET_IEEE80211_DEV(priv
->hw
, trans(priv
)->dev
);
1245 /* show what debugging capabilities we have */
1246 iwl_debug_config(priv
);
1248 IWL_DEBUG_INFO(priv
, "*** LOAD DRIVER ***\n");
1250 /* is antenna coupling more than 35dB ? */
1251 priv
->bt_ant_couple_ok
=
1252 (iwlagn_mod_params
.ant_coupling
>
1253 IWL_BT_ANTENNA_COUPLING_THRESHOLD
) ?
1256 /* enable/disable bt channel inhibition */
1257 priv
->bt_ch_announce
= iwlagn_mod_params
.bt_ch_announce
;
1258 IWL_DEBUG_INFO(priv
, "BT channel inhibition is %s\n",
1259 (priv
->bt_ch_announce
) ? "On" : "Off");
1261 if (iwl_alloc_traffic_mem(priv
))
1262 IWL_ERR(priv
, "Not enough memory to generate traffic log\n");
1264 /* these spin locks will be used in apm_ops.init and EEPROM access
1265 * we should init now
1267 spin_lock_init(&trans(priv
)->reg_lock
);
1268 spin_lock_init(&priv
->statistics
.lock
);
1270 /***********************
1271 * 2. Read REV register
1272 ***********************/
1273 IWL_INFO(priv
, "Detected %s, REV=0x%X\n",
1274 cfg(priv
)->name
, trans(priv
)->hw_rev
);
1276 err
= iwl_trans_start_hw(trans(priv
));
1278 goto out_free_traffic_mem
;
1283 err
= iwl_eeprom_init(trans(priv
), trans(priv
)->hw_rev
);
1284 /* Reset chip to save power until we load uCode during "up". */
1285 iwl_trans_stop_hw(trans(priv
));
1287 IWL_ERR(priv
, "Unable to init EEPROM\n");
1288 goto out_free_traffic_mem
;
1290 err
= iwl_eeprom_check_version(priv
);
1292 goto out_free_eeprom
;
1294 err
= iwl_eeprom_init_hw_params(priv
);
1296 goto out_free_eeprom
;
1298 /* extract MAC Address */
1299 iwl_eeprom_get_mac(priv
->shrd
, priv
->addresses
[0].addr
);
1300 IWL_DEBUG_INFO(priv
, "MAC address: %pM\n", priv
->addresses
[0].addr
);
1301 priv
->hw
->wiphy
->addresses
= priv
->addresses
;
1302 priv
->hw
->wiphy
->n_addresses
= 1;
1303 num_mac
= iwl_eeprom_query16(priv
->shrd
, EEPROM_NUM_MAC_ADDRESS
);
1305 memcpy(priv
->addresses
[1].addr
, priv
->addresses
[0].addr
,
1307 priv
->addresses
[1].addr
[5]++;
1308 priv
->hw
->wiphy
->n_addresses
++;
1311 /************************
1312 * 4. Setup HW constants
1313 ************************/
1314 iwl_set_hw_params(priv
);
1316 if (!(hw_params(priv
).sku
& EEPROM_SKU_CAP_IPAN_ENABLE
)) {
1317 IWL_DEBUG_INFO(priv
, "Your EEPROM disabled PAN");
1318 ucode_flags
&= ~IWL_UCODE_TLV_FLAGS_PAN
;
1320 * if not PAN, then don't support P2P -- might be a uCode
1321 * packaging bug or due to the eeprom check above
1323 ucode_flags
&= ~IWL_UCODE_TLV_FLAGS_P2P
;
1324 priv
->sta_key_max_num
= STA_KEY_MAX_NUM
;
1325 trans_cfg
.cmd_queue
= IWL_DEFAULT_CMD_QUEUE_NUM
;
1327 /* Configure transport layer again*/
1328 iwl_trans_configure(trans(priv
), &trans_cfg
);
1331 /*******************
1333 *******************/
1335 err
= iwl_init_drv(priv
);
1337 goto out_free_eeprom
;
1338 /* At this point both hw and priv are initialized. */
1340 /********************
1342 ********************/
1343 iwl_setup_deferred_work(priv
);
1344 iwl_setup_rx_handlers(priv
);
1345 iwl_testmode_init(priv
);
1347 iwl_power_initialize(priv
);
1348 iwl_tt_initialize(priv
);
1350 snprintf(priv
->hw
->wiphy
->fw_version
,
1351 sizeof(priv
->hw
->wiphy
->fw_version
),
1352 "%s", fw
->fw_version
);
1354 priv
->new_scan_threshold_behaviour
=
1355 !!(ucode_flags
& IWL_UCODE_TLV_FLAGS_NEWSCAN
);
1357 priv
->phy_calib_chain_noise_reset_cmd
=
1358 fw
->ucode_capa
.standard_phy_calibration_size
;
1359 priv
->phy_calib_chain_noise_gain_cmd
=
1360 fw
->ucode_capa
.standard_phy_calibration_size
+ 1;
1362 /* initialize all valid contexts */
1363 iwl_init_context(priv
, ucode_flags
);
1365 /**************************************************
1366 * This is still part of probe() in a sense...
1368 * 7. Setup and register with mac80211 and debugfs
1369 **************************************************/
1370 err
= iwlagn_mac_setup_register(priv
, &fw
->ucode_capa
);
1372 goto out_destroy_workqueue
;
1374 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
1377 "failed to create debugfs files. Ignoring error: %d\n",
1382 out_destroy_workqueue
:
1383 destroy_workqueue(priv
->workqueue
);
1384 priv
->workqueue
= NULL
;
1385 iwl_uninit_drv(priv
);
1387 iwl_eeprom_free(priv
->shrd
);
1388 out_free_traffic_mem
:
1389 iwl_free_traffic_mem(priv
);
1390 ieee80211_free_hw(priv
->hw
);
1396 static void iwl_op_mode_dvm_stop(struct iwl_op_mode
*op_mode
)
1398 struct iwl_priv
*priv
= IWL_OP_MODE_GET_DVM(op_mode
);
1400 IWL_DEBUG_INFO(priv
, "*** UNLOAD DRIVER ***\n");
1402 iwl_dbgfs_unregister(priv
);
1404 iwl_testmode_cleanup(priv
);
1405 iwlagn_mac_unregister(priv
);
1409 /*This will stop the queues, move the device to low power state */
1410 priv
->ucode_loaded
= false;
1411 iwl_trans_stop_device(trans(priv
));
1413 iwl_eeprom_free(priv
->shrd
);
1415 /*netif_stop_queue(dev); */
1416 flush_workqueue(priv
->workqueue
);
1418 /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes
1419 * priv->workqueue... so we can't take down the workqueue
1421 destroy_workqueue(priv
->workqueue
);
1422 priv
->workqueue
= NULL
;
1423 iwl_free_traffic_mem(priv
);
1425 iwl_uninit_drv(priv
);
1427 dev_kfree_skb(priv
->beacon_skb
);
1429 ieee80211_free_hw(priv
->hw
);
1432 static void iwl_cmd_queue_full(struct iwl_op_mode
*op_mode
)
1434 struct iwl_priv
*priv
= IWL_OP_MODE_GET_DVM(op_mode
);
1436 if (!iwl_check_for_ct_kill(priv
)) {
1437 IWL_ERR(priv
, "Restarting adapter queue is full\n");
1438 iwl_nic_error(op_mode
);
1442 static void iwl_nic_config(struct iwl_op_mode
*op_mode
)
1444 struct iwl_priv
*priv
= IWL_OP_MODE_GET_DVM(op_mode
);
1446 cfg(priv
)->lib
->nic_config(priv
);
1449 static void iwl_stop_sw_queue(struct iwl_op_mode
*op_mode
, u8 ac
)
1451 struct iwl_priv
*priv
= IWL_OP_MODE_GET_DVM(op_mode
);
1453 set_bit(ac
, &priv
->transport_queue_stop
);
1454 ieee80211_stop_queue(priv
->hw
, ac
);
1457 static void iwl_wake_sw_queue(struct iwl_op_mode
*op_mode
, u8 ac
)
1459 struct iwl_priv
*priv
= IWL_OP_MODE_GET_DVM(op_mode
);
1461 clear_bit(ac
, &priv
->transport_queue_stop
);
1463 if (!priv
->passive_no_rx
)
1464 ieee80211_wake_queue(priv
->hw
, ac
);
1467 void iwlagn_lift_passive_no_rx(struct iwl_priv
*priv
)
1471 if (!priv
->passive_no_rx
)
1474 for (ac
= IEEE80211_AC_VO
; ac
< IEEE80211_NUM_ACS
; ac
++) {
1475 if (!test_bit(ac
, &priv
->transport_queue_stop
)) {
1476 IWL_DEBUG_TX_QUEUES(priv
, "Wake queue %d");
1477 ieee80211_wake_queue(priv
->hw
, ac
);
1479 IWL_DEBUG_TX_QUEUES(priv
, "Don't wake queue %d");
1483 priv
->passive_no_rx
= false;
1486 const struct iwl_op_mode_ops iwl_dvm_ops
= {
1487 .start
= iwl_op_mode_dvm_start
,
1488 .stop
= iwl_op_mode_dvm_stop
,
1489 .rx
= iwl_rx_dispatch
,
1490 .queue_full
= iwl_stop_sw_queue
,
1491 .queue_not_full
= iwl_wake_sw_queue
,
1492 .hw_rf_kill
= iwl_set_hw_rfkill_state
,
1493 .free_skb
= iwl_free_skb
,
1494 .nic_error
= iwl_nic_error
,
1495 .cmd_queue_full
= iwl_cmd_queue_full
,
1496 .nic_config
= iwl_nic_config
,
1499 /*****************************************************************************
1501 * driver and module entry point
1503 *****************************************************************************/
1505 struct kmem_cache
*iwl_tx_cmd_pool
;
1507 static int __init
iwl_init(void)
1511 pr_info(DRV_DESCRIPTION
", " DRV_VERSION
"\n");
1512 pr_info(DRV_COPYRIGHT
"\n");
1514 iwl_tx_cmd_pool
= kmem_cache_create("iwl_dev_cmd",
1515 sizeof(struct iwl_device_cmd
),
1516 sizeof(void *), 0, NULL
);
1517 if (!iwl_tx_cmd_pool
)
1520 ret
= iwlagn_rate_control_register();
1522 pr_err("Unable to register rate control algorithm: %d\n", ret
);
1523 goto error_rc_register
;
1526 ret
= iwl_pci_register_driver();
1528 goto error_pci_register
;
1532 iwlagn_rate_control_unregister();
1534 kmem_cache_destroy(iwl_tx_cmd_pool
);
1538 static void __exit
iwl_exit(void)
1540 iwl_pci_unregister_driver();
1541 iwlagn_rate_control_unregister();
1542 kmem_cache_destroy(iwl_tx_cmd_pool
);
1545 module_exit(iwl_exit
);
1546 module_init(iwl_init
);
1548 #ifdef CONFIG_IWLWIFI_DEBUG
1549 module_param_named(debug
, iwlagn_mod_params
.debug_level
, uint
,
1551 MODULE_PARM_DESC(debug
, "debug output mask");
1554 module_param_named(swcrypto
, iwlagn_mod_params
.sw_crypto
, int, S_IRUGO
);
1555 MODULE_PARM_DESC(swcrypto
, "using crypto in software (default 0 [hardware])");
1556 module_param_named(11n_disable
, iwlagn_mod_params
.disable_11n
, uint
, S_IRUGO
);
1557 MODULE_PARM_DESC(11n_disable
,
1558 "disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX");
1559 module_param_named(amsdu_size_8K
, iwlagn_mod_params
.amsdu_size_8K
,
1561 MODULE_PARM_DESC(amsdu_size_8K
, "enable 8K amsdu size");
1562 module_param_named(fw_restart
, iwlagn_mod_params
.restart_fw
, int, S_IRUGO
);
1563 MODULE_PARM_DESC(fw_restart
, "restart firmware in case of error");
1565 module_param_named(ucode_alternative
,
1566 iwlagn_mod_params
.wanted_ucode_alternative
,
1568 MODULE_PARM_DESC(ucode_alternative
,
1569 "specify ucode alternative to use from ucode file");
1571 module_param_named(antenna_coupling
, iwlagn_mod_params
.ant_coupling
,
1573 MODULE_PARM_DESC(antenna_coupling
,
1574 "specify antenna coupling in dB (defualt: 0 dB)");
1576 module_param_named(bt_ch_inhibition
, iwlagn_mod_params
.bt_ch_announce
,
1578 MODULE_PARM_DESC(bt_ch_inhibition
,
1579 "Enable BT channel inhibition (default: enable)");
1581 module_param_named(plcp_check
, iwlagn_mod_params
.plcp_check
, bool, S_IRUGO
);
1582 MODULE_PARM_DESC(plcp_check
, "Check plcp health (default: 1 [enabled])");
1584 module_param_named(ack_check
, iwlagn_mod_params
.ack_check
, bool, S_IRUGO
);
1585 MODULE_PARM_DESC(ack_check
, "Check ack health (default: 0 [disabled])");
1587 module_param_named(wd_disable
, iwlagn_mod_params
.wd_disable
, int, S_IRUGO
);
1588 MODULE_PARM_DESC(wd_disable
,
1589 "Disable stuck queue watchdog timer 0=system default, "
1590 "1=disable, 2=enable (default: 0)");
1593 * set bt_coex_active to true, uCode will do kill/defer
1594 * every time the priority line is asserted (BT is sending signals on the
1595 * priority line in the PCIx).
1596 * set bt_coex_active to false, uCode will ignore the BT activity and
1597 * perform the normal operation
1599 * User might experience transmit issue on some platform due to WiFi/BT
1600 * co-exist problem. The possible behaviors are:
1601 * Able to scan and finding all the available AP
1602 * Not able to associate with any AP
1603 * On those platforms, WiFi communication can be restored by set
1604 * "bt_coex_active" module parameter to "false"
1606 * default: bt_coex_active = true (BT_COEX_ENABLE)
1608 module_param_named(bt_coex_active
, iwlagn_mod_params
.bt_coex_active
,
1610 MODULE_PARM_DESC(bt_coex_active
, "enable wifi/bt co-exist (default: enable)");
1612 module_param_named(led_mode
, iwlagn_mod_params
.led_mode
, int, S_IRUGO
);
1613 MODULE_PARM_DESC(led_mode
, "0=system default, "
1614 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1616 module_param_named(power_save
, iwlagn_mod_params
.power_save
,
1618 MODULE_PARM_DESC(power_save
,
1619 "enable WiFi power management (default: disable)");
1621 module_param_named(power_level
, iwlagn_mod_params
.power_level
,
1623 MODULE_PARM_DESC(power_level
,
1624 "default power save level (range from 1 - 5, default: 1)");
1626 module_param_named(auto_agg
, iwlagn_mod_params
.auto_agg
,
1628 MODULE_PARM_DESC(auto_agg
,
1629 "enable agg w/o check traffic load (default: enable)");
1632 * For now, keep using power level 1 instead of automatically
1635 module_param_named(no_sleep_autoadjust
, iwlagn_mod_params
.no_sleep_autoadjust
,
1637 MODULE_PARM_DESC(no_sleep_autoadjust
,
1638 "don't automatically adjust sleep level "
1639 "according to maximum network latency (default: true)");