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 *****************************************************************************/
30 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
32 #include <linux/kernel.h>
33 #include <linux/module.h>
34 #include <linux/init.h>
35 #include <linux/slab.h>
36 #include <linux/delay.h>
37 #include <linux/sched.h>
38 #include <linux/skbuff.h>
39 #include <linux/netdevice.h>
40 #include <linux/etherdevice.h>
41 #include <linux/if_arp.h>
43 #include <net/mac80211.h>
45 #include <asm/div64.h>
47 #include "iwl-eeprom.h"
50 #include "iwl-agn-calib.h"
52 #include "iwl-trans.h"
53 #include "iwl-op-mode.h"
55 #include "iwl-modparams.h"
57 /******************************************************************************
61 ******************************************************************************/
64 * module name, copyright, version, etc.
66 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
68 #ifdef CONFIG_IWLWIFI_DEBUG
74 #define DRV_VERSION IWLWIFI_VERSION VD
77 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
78 MODULE_VERSION(DRV_VERSION
);
79 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
80 MODULE_LICENSE("GPL");
81 MODULE_ALIAS("iwlagn");
83 void iwl_update_chain_flags(struct iwl_priv
*priv
)
85 struct iwl_rxon_context
*ctx
;
87 for_each_context(priv
, ctx
) {
88 iwlagn_set_rxon_chain(priv
, ctx
);
89 if (ctx
->active
.rx_chain
!= ctx
->staging
.rx_chain
)
90 iwlagn_commit_rxon(priv
, ctx
);
94 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
95 static void iwl_set_beacon_tim(struct iwl_priv
*priv
,
96 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
,
97 u8
*beacon
, u32 frame_size
)
100 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)beacon
;
103 * The index is relative to frame start but we start looking at the
104 * variable-length part of the beacon.
106 tim_idx
= mgmt
->u
.beacon
.variable
- beacon
;
108 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
109 while ((tim_idx
< (frame_size
- 2)) &&
110 (beacon
[tim_idx
] != WLAN_EID_TIM
))
111 tim_idx
+= beacon
[tim_idx
+1] + 2;
113 /* If TIM field was found, set variables */
114 if ((tim_idx
< (frame_size
- 1)) && (beacon
[tim_idx
] == WLAN_EID_TIM
)) {
115 tx_beacon_cmd
->tim_idx
= cpu_to_le16(tim_idx
);
116 tx_beacon_cmd
->tim_size
= beacon
[tim_idx
+1];
118 IWL_WARN(priv
, "Unable to find TIM Element in beacon\n");
121 int iwlagn_send_beacon_cmd(struct iwl_priv
*priv
)
123 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
;
124 struct iwl_host_cmd cmd
= {
125 .id
= REPLY_TX_BEACON
,
128 struct ieee80211_tx_info
*info
;
134 * We have to set up the TX command, the TX Beacon command, and the
138 lockdep_assert_held(&priv
->mutex
);
140 if (!priv
->beacon_ctx
) {
141 IWL_ERR(priv
, "trying to build beacon w/o beacon context!\n");
145 if (WARN_ON(!priv
->beacon_skb
))
148 /* Allocate beacon command */
149 if (!priv
->beacon_cmd
)
150 priv
->beacon_cmd
= kzalloc(sizeof(*tx_beacon_cmd
), GFP_KERNEL
);
151 tx_beacon_cmd
= priv
->beacon_cmd
;
155 frame_size
= priv
->beacon_skb
->len
;
157 /* Set up TX command fields */
158 tx_beacon_cmd
->tx
.len
= cpu_to_le16((u16
)frame_size
);
159 tx_beacon_cmd
->tx
.sta_id
= priv
->beacon_ctx
->bcast_sta_id
;
160 tx_beacon_cmd
->tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
161 tx_beacon_cmd
->tx
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
|
162 TX_CMD_FLG_TSF_MSK
| TX_CMD_FLG_STA_RATE_MSK
;
164 /* Set up TX beacon command fields */
165 iwl_set_beacon_tim(priv
, tx_beacon_cmd
, priv
->beacon_skb
->data
,
168 /* Set up packet rate and flags */
169 info
= IEEE80211_SKB_CB(priv
->beacon_skb
);
172 * Let's set up the rate at least somewhat correctly;
173 * it will currently not actually be used by the uCode,
174 * it uses the broadcast station's rate instead.
176 if (info
->control
.rates
[0].idx
< 0 ||
177 info
->control
.rates
[0].flags
& IEEE80211_TX_RC_MCS
)
180 rate
= info
->control
.rates
[0].idx
;
182 priv
->mgmt_tx_ant
= iwl_toggle_tx_ant(priv
, priv
->mgmt_tx_ant
,
183 priv
->hw_params
.valid_tx_ant
);
184 rate_flags
= iwl_ant_idx_to_flags(priv
->mgmt_tx_ant
);
186 /* In mac80211, rates for 5 GHz start at 0 */
187 if (info
->band
== IEEE80211_BAND_5GHZ
)
188 rate
+= IWL_FIRST_OFDM_RATE
;
189 else if (rate
>= IWL_FIRST_CCK_RATE
&& rate
<= IWL_LAST_CCK_RATE
)
190 rate_flags
|= RATE_MCS_CCK_MSK
;
192 tx_beacon_cmd
->tx
.rate_n_flags
=
193 iwl_hw_set_rate_n_flags(rate
, rate_flags
);
196 cmd
.len
[0] = sizeof(*tx_beacon_cmd
);
197 cmd
.data
[0] = tx_beacon_cmd
;
198 cmd
.dataflags
[0] = IWL_HCMD_DFL_NOCOPY
;
199 cmd
.len
[1] = frame_size
;
200 cmd
.data
[1] = priv
->beacon_skb
->data
;
201 cmd
.dataflags
[1] = IWL_HCMD_DFL_NOCOPY
;
203 return iwl_dvm_send_cmd(priv
, &cmd
);
206 static void iwl_bg_beacon_update(struct work_struct
*work
)
208 struct iwl_priv
*priv
=
209 container_of(work
, struct iwl_priv
, beacon_update
);
210 struct sk_buff
*beacon
;
212 mutex_lock(&priv
->mutex
);
213 if (!priv
->beacon_ctx
) {
214 IWL_ERR(priv
, "updating beacon w/o beacon context!\n");
218 if (priv
->beacon_ctx
->vif
->type
!= NL80211_IFTYPE_AP
) {
220 * The ucode will send beacon notifications even in
221 * IBSS mode, but we don't want to process them. But
222 * we need to defer the type check to here due to
223 * requiring locking around the beacon_ctx access.
228 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
229 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->beacon_ctx
->vif
);
231 IWL_ERR(priv
, "update beacon failed -- keeping old\n");
235 /* new beacon skb is allocated every time; dispose previous.*/
236 dev_kfree_skb(priv
->beacon_skb
);
238 priv
->beacon_skb
= beacon
;
240 iwlagn_send_beacon_cmd(priv
);
242 mutex_unlock(&priv
->mutex
);
245 static void iwl_bg_bt_runtime_config(struct work_struct
*work
)
247 struct iwl_priv
*priv
=
248 container_of(work
, struct iwl_priv
, bt_runtime_config
);
250 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
253 /* dont send host command if rf-kill is on */
254 if (!iwl_is_ready_rf(priv
))
256 iwlagn_send_advance_bt_config(priv
);
259 static void iwl_bg_bt_full_concurrency(struct work_struct
*work
)
261 struct iwl_priv
*priv
=
262 container_of(work
, struct iwl_priv
, bt_full_concurrency
);
263 struct iwl_rxon_context
*ctx
;
265 mutex_lock(&priv
->mutex
);
267 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
270 /* dont send host command if rf-kill is on */
271 if (!iwl_is_ready_rf(priv
))
274 IWL_DEBUG_INFO(priv
, "BT coex in %s mode\n",
275 priv
->bt_full_concurrent
?
276 "full concurrency" : "3-wire");
279 * LQ & RXON updated cmds must be sent before BT Config cmd
280 * to avoid 3-wire collisions
282 for_each_context(priv
, ctx
) {
283 iwlagn_set_rxon_chain(priv
, ctx
);
284 iwlagn_commit_rxon(priv
, ctx
);
287 iwlagn_send_advance_bt_config(priv
);
289 mutex_unlock(&priv
->mutex
);
292 int iwl_send_statistics_request(struct iwl_priv
*priv
, u8 flags
, bool clear
)
294 struct iwl_statistics_cmd statistics_cmd
= {
295 .configuration_flags
=
296 clear
? IWL_STATS_CONF_CLEAR_STATS
: 0,
299 if (flags
& CMD_ASYNC
)
300 return iwl_dvm_send_cmd_pdu(priv
, REPLY_STATISTICS_CMD
,
302 sizeof(struct iwl_statistics_cmd
),
305 return iwl_dvm_send_cmd_pdu(priv
, REPLY_STATISTICS_CMD
,
307 sizeof(struct iwl_statistics_cmd
),
312 * iwl_bg_statistics_periodic - Timer callback to queue statistics
314 * This callback is provided in order to send a statistics request.
316 * This timer function is continually reset to execute within
317 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
318 * was received. We need to ensure we receive the statistics in order
319 * to update the temperature used for calibrating the TXPOWER.
321 static void iwl_bg_statistics_periodic(unsigned long data
)
323 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
325 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
328 /* dont send host command if rf-kill is on */
329 if (!iwl_is_ready_rf(priv
))
332 iwl_send_statistics_request(priv
, CMD_ASYNC
, false);
336 static void iwl_print_cont_event_trace(struct iwl_priv
*priv
, u32 base
,
337 u32 start_idx
, u32 num_events
,
338 u32 capacity
, u32 mode
)
341 u32 ptr
; /* SRAM byte address of log data */
342 u32 ev
, time
, data
; /* event log data */
343 unsigned long reg_flags
;
346 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 2 * sizeof(u32
));
348 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 3 * sizeof(u32
));
350 /* Make sure device is powered up for SRAM reads */
351 spin_lock_irqsave(&priv
->trans
->reg_lock
, reg_flags
);
352 if (unlikely(!iwl_grab_nic_access(priv
->trans
))) {
353 spin_unlock_irqrestore(&priv
->trans
->reg_lock
, reg_flags
);
357 /* Set starting address; reads will auto-increment */
358 iwl_write32(priv
->trans
, HBUS_TARG_MEM_RADDR
, ptr
);
361 * Refuse to read more than would have fit into the log from
362 * the current start_idx. This used to happen due to the race
363 * described below, but now WARN because the code below should
364 * prevent it from happening here.
366 if (WARN_ON(num_events
> capacity
- start_idx
))
367 num_events
= capacity
- start_idx
;
370 * "time" is actually "data" for mode 0 (no timestamp).
371 * place event id # at far right for easier visual parsing.
373 for (i
= 0; i
< num_events
; i
++) {
374 ev
= iwl_read32(priv
->trans
, HBUS_TARG_MEM_RDAT
);
375 time
= iwl_read32(priv
->trans
, HBUS_TARG_MEM_RDAT
);
377 trace_iwlwifi_dev_ucode_cont_event(
378 priv
->trans
->dev
, 0, time
, ev
);
380 data
= iwl_read32(priv
->trans
, HBUS_TARG_MEM_RDAT
);
381 trace_iwlwifi_dev_ucode_cont_event(
382 priv
->trans
->dev
, time
, data
, ev
);
385 /* Allow device to power down */
386 iwl_release_nic_access(priv
->trans
);
387 spin_unlock_irqrestore(&priv
->trans
->reg_lock
, reg_flags
);
390 static void iwl_continuous_event_trace(struct iwl_priv
*priv
)
392 u32 capacity
; /* event log capacity in # entries */
399 u32 base
; /* SRAM byte address of event log header */
400 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
401 u32 num_wraps
; /* # times uCode wrapped to top of log */
402 u32 next_entry
; /* index of next entry to be written by uCode */
404 base
= priv
->device_pointers
.log_event_table
;
405 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
406 iwl_read_targ_mem_words(priv
->trans
, base
, &read
, sizeof(read
));
407 capacity
= read
.capacity
;
409 num_wraps
= read
.wrap_counter
;
410 next_entry
= read
.write_counter
;
415 * Unfortunately, the uCode doesn't use temporary variables.
416 * Therefore, it can happen that we read next_entry == capacity,
417 * which really means next_entry == 0.
419 if (unlikely(next_entry
== capacity
))
422 * Additionally, the uCode increases the write pointer before
423 * the wraps counter, so if the write pointer is smaller than
424 * the old write pointer (wrap occurred) but we read that no
425 * wrap occurred, we actually read between the next_entry and
426 * num_wraps update (this does happen in practice!!) -- take
427 * that into account by increasing num_wraps.
429 if (unlikely(next_entry
< priv
->event_log
.next_entry
&&
430 num_wraps
== priv
->event_log
.num_wraps
))
433 if (num_wraps
== priv
->event_log
.num_wraps
) {
434 iwl_print_cont_event_trace(
435 priv
, base
, priv
->event_log
.next_entry
,
436 next_entry
- priv
->event_log
.next_entry
,
439 priv
->event_log
.non_wraps_count
++;
441 if (num_wraps
- priv
->event_log
.num_wraps
> 1)
442 priv
->event_log
.wraps_more_count
++;
444 priv
->event_log
.wraps_once_count
++;
446 trace_iwlwifi_dev_ucode_wrap_event(priv
->trans
->dev
,
447 num_wraps
- priv
->event_log
.num_wraps
,
448 next_entry
, priv
->event_log
.next_entry
);
450 if (next_entry
< priv
->event_log
.next_entry
) {
451 iwl_print_cont_event_trace(
452 priv
, base
, priv
->event_log
.next_entry
,
453 capacity
- priv
->event_log
.next_entry
,
456 iwl_print_cont_event_trace(
457 priv
, base
, 0, next_entry
, capacity
, mode
);
459 iwl_print_cont_event_trace(
460 priv
, base
, next_entry
,
461 capacity
- next_entry
,
464 iwl_print_cont_event_trace(
465 priv
, base
, 0, next_entry
, capacity
, mode
);
469 priv
->event_log
.num_wraps
= num_wraps
;
470 priv
->event_log
.next_entry
= next_entry
;
474 * iwl_bg_ucode_trace - Timer callback to log ucode event
476 * The timer is continually set to execute every
477 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
478 * this function is to perform continuous uCode event logging operation
481 static void iwl_bg_ucode_trace(unsigned long data
)
483 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
485 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
488 if (priv
->event_log
.ucode_trace
) {
489 iwl_continuous_event_trace(priv
);
490 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
491 mod_timer(&priv
->ucode_trace
,
492 jiffies
+ msecs_to_jiffies(UCODE_TRACE_PERIOD
));
496 static void iwl_bg_tx_flush(struct work_struct
*work
)
498 struct iwl_priv
*priv
=
499 container_of(work
, struct iwl_priv
, tx_flush
);
501 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
504 /* do nothing if rf-kill is on */
505 if (!iwl_is_ready_rf(priv
))
508 IWL_DEBUG_INFO(priv
, "device request: flush all tx frames\n");
509 iwlagn_dev_txfifo_flush(priv
, IWL_DROP_ALL
);
513 * queue/FIFO/AC mapping definitions
516 #define IWL_TX_FIFO_BK 0 /* shared */
517 #define IWL_TX_FIFO_BE 1
518 #define IWL_TX_FIFO_VI 2 /* shared */
519 #define IWL_TX_FIFO_VO 3
520 #define IWL_TX_FIFO_BK_IPAN IWL_TX_FIFO_BK
521 #define IWL_TX_FIFO_BE_IPAN 4
522 #define IWL_TX_FIFO_VI_IPAN IWL_TX_FIFO_VI
523 #define IWL_TX_FIFO_VO_IPAN 5
524 /* re-uses the VO FIFO, uCode will properly flush/schedule */
525 #define IWL_TX_FIFO_AUX 5
526 #define IWL_TX_FIFO_UNUSED -1
528 #define IWLAGN_CMD_FIFO_NUM 7
531 * This queue number is required for proper operation
532 * because the ucode will stop/start the scheduler as
535 #define IWL_IPAN_MCAST_QUEUE 8
537 static const u8 iwlagn_default_queue_to_tx_fifo
[] = {
545 static const u8 iwlagn_ipan_queue_to_tx_fifo
[] = {
559 static const u8 iwlagn_bss_ac_to_fifo
[] = {
566 static const u8 iwlagn_bss_ac_to_queue
[] = {
570 static const u8 iwlagn_pan_ac_to_fifo
[] = {
577 static const u8 iwlagn_pan_ac_to_queue
[] = {
581 void iwl_init_context(struct iwl_priv
*priv
, u32 ucode_flags
)
586 * The default context is always valid,
587 * the PAN context depends on uCode.
589 priv
->valid_contexts
= BIT(IWL_RXON_CTX_BSS
);
590 if (ucode_flags
& IWL_UCODE_TLV_FLAGS_PAN
)
591 priv
->valid_contexts
|= BIT(IWL_RXON_CTX_PAN
);
593 for (i
= 0; i
< NUM_IWL_RXON_CTX
; i
++)
594 priv
->contexts
[i
].ctxid
= i
;
596 priv
->contexts
[IWL_RXON_CTX_BSS
].always_active
= true;
597 priv
->contexts
[IWL_RXON_CTX_BSS
].is_active
= true;
598 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_cmd
= REPLY_RXON
;
599 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_timing_cmd
= REPLY_RXON_TIMING
;
600 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_assoc_cmd
= REPLY_RXON_ASSOC
;
601 priv
->contexts
[IWL_RXON_CTX_BSS
].qos_cmd
= REPLY_QOS_PARAM
;
602 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_sta_id
= IWL_AP_ID
;
603 priv
->contexts
[IWL_RXON_CTX_BSS
].wep_key_cmd
= REPLY_WEPKEY
;
604 priv
->contexts
[IWL_RXON_CTX_BSS
].bcast_sta_id
= IWLAGN_BROADCAST_ID
;
605 priv
->contexts
[IWL_RXON_CTX_BSS
].exclusive_interface_modes
=
606 BIT(NL80211_IFTYPE_ADHOC
);
607 priv
->contexts
[IWL_RXON_CTX_BSS
].interface_modes
=
608 BIT(NL80211_IFTYPE_STATION
);
609 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_devtype
= RXON_DEV_TYPE_AP
;
610 priv
->contexts
[IWL_RXON_CTX_BSS
].ibss_devtype
= RXON_DEV_TYPE_IBSS
;
611 priv
->contexts
[IWL_RXON_CTX_BSS
].station_devtype
= RXON_DEV_TYPE_ESS
;
612 priv
->contexts
[IWL_RXON_CTX_BSS
].unused_devtype
= RXON_DEV_TYPE_ESS
;
613 memcpy(priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_queue
,
614 iwlagn_bss_ac_to_queue
, sizeof(iwlagn_bss_ac_to_queue
));
615 memcpy(priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_fifo
,
616 iwlagn_bss_ac_to_fifo
, sizeof(iwlagn_bss_ac_to_fifo
));
618 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_cmd
= REPLY_WIPAN_RXON
;
619 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_timing_cmd
=
620 REPLY_WIPAN_RXON_TIMING
;
621 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_assoc_cmd
=
622 REPLY_WIPAN_RXON_ASSOC
;
623 priv
->contexts
[IWL_RXON_CTX_PAN
].qos_cmd
= REPLY_WIPAN_QOS_PARAM
;
624 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_sta_id
= IWL_AP_ID_PAN
;
625 priv
->contexts
[IWL_RXON_CTX_PAN
].wep_key_cmd
= REPLY_WIPAN_WEPKEY
;
626 priv
->contexts
[IWL_RXON_CTX_PAN
].bcast_sta_id
= IWLAGN_PAN_BCAST_ID
;
627 priv
->contexts
[IWL_RXON_CTX_PAN
].station_flags
= STA_FLG_PAN_STATION
;
628 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
=
629 BIT(NL80211_IFTYPE_STATION
) | BIT(NL80211_IFTYPE_AP
);
631 if (ucode_flags
& IWL_UCODE_TLV_FLAGS_P2P
)
632 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
|=
633 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
634 BIT(NL80211_IFTYPE_P2P_GO
);
636 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_devtype
= RXON_DEV_TYPE_CP
;
637 priv
->contexts
[IWL_RXON_CTX_PAN
].station_devtype
= RXON_DEV_TYPE_2STA
;
638 priv
->contexts
[IWL_RXON_CTX_PAN
].unused_devtype
= RXON_DEV_TYPE_P2P
;
639 memcpy(priv
->contexts
[IWL_RXON_CTX_PAN
].ac_to_queue
,
640 iwlagn_pan_ac_to_queue
, sizeof(iwlagn_pan_ac_to_queue
));
641 memcpy(priv
->contexts
[IWL_RXON_CTX_PAN
].ac_to_fifo
,
642 iwlagn_pan_ac_to_fifo
, sizeof(iwlagn_pan_ac_to_fifo
));
643 priv
->contexts
[IWL_RXON_CTX_PAN
].mcast_queue
= IWL_IPAN_MCAST_QUEUE
;
645 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
648 void iwl_rf_kill_ct_config(struct iwl_priv
*priv
)
650 struct iwl_ct_kill_config cmd
;
651 struct iwl_ct_kill_throttling_config adv_cmd
;
654 iwl_write32(priv
->trans
, CSR_UCODE_DRV_GP1_CLR
,
655 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
657 priv
->thermal_throttle
.ct_kill_toggle
= false;
659 if (priv
->cfg
->base_params
->support_ct_kill_exit
) {
660 adv_cmd
.critical_temperature_enter
=
661 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
662 adv_cmd
.critical_temperature_exit
=
663 cpu_to_le32(priv
->hw_params
.ct_kill_exit_threshold
);
665 ret
= iwl_dvm_send_cmd_pdu(priv
,
666 REPLY_CT_KILL_CONFIG_CMD
,
667 CMD_SYNC
, sizeof(adv_cmd
), &adv_cmd
);
669 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
671 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
672 "succeeded, critical temperature enter is %d,"
674 priv
->hw_params
.ct_kill_threshold
,
675 priv
->hw_params
.ct_kill_exit_threshold
);
677 cmd
.critical_temperature_R
=
678 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
680 ret
= iwl_dvm_send_cmd_pdu(priv
,
681 REPLY_CT_KILL_CONFIG_CMD
,
682 CMD_SYNC
, sizeof(cmd
), &cmd
);
684 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
686 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
688 "critical temperature is %d\n",
689 priv
->hw_params
.ct_kill_threshold
);
693 static int iwlagn_send_calib_cfg_rt(struct iwl_priv
*priv
, u32 cfg
)
695 struct iwl_calib_cfg_cmd calib_cfg_cmd
;
696 struct iwl_host_cmd cmd
= {
697 .id
= CALIBRATION_CFG_CMD
,
698 .len
= { sizeof(struct iwl_calib_cfg_cmd
), },
699 .data
= { &calib_cfg_cmd
, },
702 memset(&calib_cfg_cmd
, 0, sizeof(calib_cfg_cmd
));
703 calib_cfg_cmd
.ucd_calib_cfg
.once
.is_enable
= IWL_CALIB_RT_CFG_ALL
;
704 calib_cfg_cmd
.ucd_calib_cfg
.once
.start
= cpu_to_le32(cfg
);
706 return iwl_dvm_send_cmd(priv
, &cmd
);
710 static int iwlagn_send_tx_ant_config(struct iwl_priv
*priv
, u8 valid_tx_ant
)
712 struct iwl_tx_ant_config_cmd tx_ant_cmd
= {
713 .valid
= cpu_to_le32(valid_tx_ant
),
716 if (IWL_UCODE_API(priv
->fw
->ucode_ver
) > 1) {
717 IWL_DEBUG_HC(priv
, "select valid tx ant: %u\n", valid_tx_ant
);
718 return iwl_dvm_send_cmd_pdu(priv
,
719 TX_ANT_CONFIGURATION_CMD
,
721 sizeof(struct iwl_tx_ant_config_cmd
),
724 IWL_DEBUG_HC(priv
, "TX_ANT_CONFIGURATION_CMD not supported\n");
729 void iwl_send_bt_config(struct iwl_priv
*priv
)
731 struct iwl_bt_cmd bt_cmd
= {
732 .lead_time
= BT_LEAD_TIME_DEF
,
733 .max_kill
= BT_MAX_KILL_DEF
,
738 if (!iwlwifi_mod_params
.bt_coex_active
)
739 bt_cmd
.flags
= BT_COEX_DISABLE
;
741 bt_cmd
.flags
= BT_COEX_ENABLE
;
743 priv
->bt_enable_flag
= bt_cmd
.flags
;
744 IWL_DEBUG_INFO(priv
, "BT coex %s\n",
745 (bt_cmd
.flags
== BT_COEX_DISABLE
) ? "disable" : "active");
747 if (iwl_dvm_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
748 CMD_SYNC
, sizeof(struct iwl_bt_cmd
), &bt_cmd
))
749 IWL_ERR(priv
, "failed to send BT Coex Config\n");
753 * iwl_alive_start - called after REPLY_ALIVE notification received
754 * from protocol/runtime uCode (initialization uCode's
755 * Alive gets handled by iwl_init_alive_start()).
757 int iwl_alive_start(struct iwl_priv
*priv
)
760 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
762 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
764 /* After the ALIVE response, we can send host commands to the uCode */
765 set_bit(STATUS_ALIVE
, &priv
->status
);
767 if (iwl_is_rfkill(priv
))
770 if (priv
->event_log
.ucode_trace
) {
771 /* start collecting data now */
772 mod_timer(&priv
->ucode_trace
, jiffies
);
775 /* download priority table before any calibration request */
776 if (priv
->cfg
->bt_params
&&
777 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
778 /* Configure Bluetooth device coexistence support */
779 if (priv
->cfg
->bt_params
->bt_sco_disable
)
780 priv
->bt_enable_pspoll
= false;
782 priv
->bt_enable_pspoll
= true;
784 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
785 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
786 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
787 iwlagn_send_advance_bt_config(priv
);
788 priv
->bt_valid
= IWLAGN_BT_VALID_ENABLE_FLAGS
;
789 priv
->cur_rssi_ctx
= NULL
;
791 iwl_send_prio_tbl(priv
);
793 /* FIXME: w/a to force change uCode BT state machine */
794 ret
= iwl_send_bt_env(priv
, IWL_BT_COEX_ENV_OPEN
,
795 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
798 ret
= iwl_send_bt_env(priv
, IWL_BT_COEX_ENV_CLOSE
,
799 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
804 * default is 2-wire BT coexexistence support
806 iwl_send_bt_config(priv
);
810 * Perform runtime calibrations, including DC calibration.
812 iwlagn_send_calib_cfg_rt(priv
, IWL_CALIB_CFG_DC_IDX
);
814 ieee80211_wake_queues(priv
->hw
);
816 /* Configure Tx antenna selection based on H/W config */
817 iwlagn_send_tx_ant_config(priv
, priv
->hw_params
.valid_tx_ant
);
819 if (iwl_is_associated_ctx(ctx
) && !priv
->wowlan
) {
820 struct iwl_rxon_cmd
*active_rxon
=
821 (struct iwl_rxon_cmd
*)&ctx
->active
;
822 /* apply any changes in staging */
823 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
824 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
826 struct iwl_rxon_context
*tmp
;
827 /* Initialize our rx_config data */
828 for_each_context(priv
, tmp
)
829 iwl_connection_init_rx_config(priv
, tmp
);
831 iwlagn_set_rxon_chain(priv
, ctx
);
835 /* WoWLAN ucode will not reply in the same way, skip it */
836 iwl_reset_run_time_calib(priv
);
839 set_bit(STATUS_READY
, &priv
->status
);
841 /* Configure the adapter for unassociated operation */
842 ret
= iwlagn_commit_rxon(priv
, ctx
);
846 /* At this point, the NIC is initialized and operational */
847 iwl_rf_kill_ct_config(priv
);
849 IWL_DEBUG_INFO(priv
, "ALIVE processing complete.\n");
851 return iwl_power_update_mode(priv
, true);
855 * iwl_clear_driver_stations - clear knowledge of all stations from driver
856 * @priv: iwl priv struct
858 * This is called during iwl_down() to make sure that in the case
859 * we're coming there from a hardware restart mac80211 will be
860 * able to reconfigure stations -- if we're getting there in the
861 * normal down flow then the stations will already be cleared.
863 static void iwl_clear_driver_stations(struct iwl_priv
*priv
)
865 struct iwl_rxon_context
*ctx
;
867 spin_lock_bh(&priv
->sta_lock
);
868 memset(priv
->stations
, 0, sizeof(priv
->stations
));
869 priv
->num_stations
= 0;
871 priv
->ucode_key_table
= 0;
873 for_each_context(priv
, ctx
) {
875 * Remove all key information that is not stored as part
876 * of station information since mac80211 may not have had
877 * a chance to remove all the keys. When device is
878 * reconfigured by mac80211 after an error all keys will
881 memset(ctx
->wep_keys
, 0, sizeof(ctx
->wep_keys
));
882 ctx
->key_mapping_keys
= 0;
885 spin_unlock_bh(&priv
->sta_lock
);
888 void iwl_down(struct iwl_priv
*priv
)
892 IWL_DEBUG_INFO(priv
, DRV_NAME
" is going down\n");
894 lockdep_assert_held(&priv
->mutex
);
896 iwl_scan_cancel_timeout(priv
, 200);
899 * If active, scanning won't cancel it, so say it expired.
900 * No race since we hold the mutex here and a new one
901 * can't come in at this time.
903 ieee80211_remain_on_channel_expired(priv
->hw
);
906 test_and_set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
908 iwl_clear_ucode_stations(priv
, NULL
);
909 iwl_dealloc_bcast_stations(priv
);
910 iwl_clear_driver_stations(priv
);
912 /* reset BT coex data */
914 priv
->cur_rssi_ctx
= NULL
;
916 if (priv
->cfg
->bt_params
)
917 priv
->bt_traffic_load
=
918 priv
->cfg
->bt_params
->bt_init_traffic_load
;
920 priv
->bt_traffic_load
= 0;
921 priv
->bt_full_concurrent
= false;
922 priv
->bt_ci_compliance
= 0;
924 /* Wipe out the EXIT_PENDING status bit if we are not actually
925 * exiting the module */
927 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
929 if (priv
->mac80211_registered
)
930 ieee80211_stop_queues(priv
->hw
);
932 priv
->ucode_loaded
= false;
933 iwl_trans_stop_device(priv
->trans
);
935 /* Clear out all status bits but a few that are stable across reset */
936 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
938 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
939 STATUS_GEO_CONFIGURED
|
940 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
942 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
945 dev_kfree_skb(priv
->beacon_skb
);
946 priv
->beacon_skb
= NULL
;
949 /*****************************************************************************
951 * Workqueue callbacks
953 *****************************************************************************/
955 static void iwl_bg_run_time_calib_work(struct work_struct
*work
)
957 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
958 run_time_calib_work
);
960 mutex_lock(&priv
->mutex
);
962 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
963 test_bit(STATUS_SCANNING
, &priv
->status
)) {
964 mutex_unlock(&priv
->mutex
);
968 if (priv
->start_calib
) {
969 iwl_chain_noise_calibration(priv
);
970 iwl_sensitivity_calibration(priv
);
973 mutex_unlock(&priv
->mutex
);
976 void iwlagn_prepare_restart(struct iwl_priv
*priv
)
978 bool bt_full_concurrent
;
985 lockdep_assert_held(&priv
->mutex
);
990 * __iwl_down() will clear the BT status variables,
991 * which is correct, but when we restart we really
992 * want to keep them so restore them afterwards.
994 * The restart process will later pick them up and
995 * re-configure the hw when we reconfigure the BT
998 bt_full_concurrent
= priv
->bt_full_concurrent
;
999 bt_ci_compliance
= priv
->bt_ci_compliance
;
1000 bt_load
= priv
->bt_traffic_load
;
1001 bt_status
= priv
->bt_status
;
1002 bt_is_sco
= priv
->bt_is_sco
;
1006 priv
->bt_full_concurrent
= bt_full_concurrent
;
1007 priv
->bt_ci_compliance
= bt_ci_compliance
;
1008 priv
->bt_traffic_load
= bt_load
;
1009 priv
->bt_status
= bt_status
;
1010 priv
->bt_is_sco
= bt_is_sco
;
1012 /* reset aggregation queues */
1013 for (i
= IWLAGN_FIRST_AMPDU_QUEUE
; i
< IWL_MAX_HW_QUEUES
; i
++)
1014 priv
->queue_to_mac80211
[i
] = IWL_INVALID_MAC80211_QUEUE
;
1015 /* and stop counts */
1016 for (i
= 0; i
< IWL_MAX_HW_QUEUES
; i
++)
1017 atomic_set(&priv
->queue_stop_count
[i
], 0);
1019 memset(priv
->agg_q_alloc
, 0, sizeof(priv
->agg_q_alloc
));
1022 static void iwl_bg_restart(struct work_struct
*data
)
1024 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
1026 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
1029 if (test_and_clear_bit(STATUS_FW_ERROR
, &priv
->status
)) {
1030 mutex_lock(&priv
->mutex
);
1031 iwlagn_prepare_restart(priv
);
1032 mutex_unlock(&priv
->mutex
);
1033 iwl_cancel_deferred_work(priv
);
1034 ieee80211_restart_hw(priv
->hw
);
1043 void iwlagn_disable_roc(struct iwl_priv
*priv
)
1045 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
1047 lockdep_assert_held(&priv
->mutex
);
1049 if (!priv
->hw_roc_setup
)
1052 ctx
->staging
.dev_type
= RXON_DEV_TYPE_P2P
;
1053 ctx
->staging
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1055 priv
->hw_roc_channel
= NULL
;
1057 memset(ctx
->staging
.node_addr
, 0, ETH_ALEN
);
1059 iwlagn_commit_rxon(priv
, ctx
);
1061 ctx
->is_active
= false;
1062 priv
->hw_roc_setup
= false;
1065 static void iwlagn_disable_roc_work(struct work_struct
*work
)
1067 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
1068 hw_roc_disable_work
.work
);
1070 mutex_lock(&priv
->mutex
);
1071 iwlagn_disable_roc(priv
);
1072 mutex_unlock(&priv
->mutex
);
1075 /*****************************************************************************
1077 * driver setup and teardown
1079 *****************************************************************************/
1081 void iwl_setup_deferred_work(struct iwl_priv
*priv
)
1083 priv
->workqueue
= create_singlethread_workqueue(DRV_NAME
);
1085 INIT_WORK(&priv
->restart
, iwl_bg_restart
);
1086 INIT_WORK(&priv
->beacon_update
, iwl_bg_beacon_update
);
1087 INIT_WORK(&priv
->run_time_calib_work
, iwl_bg_run_time_calib_work
);
1088 INIT_WORK(&priv
->tx_flush
, iwl_bg_tx_flush
);
1089 INIT_WORK(&priv
->bt_full_concurrency
, iwl_bg_bt_full_concurrency
);
1090 INIT_WORK(&priv
->bt_runtime_config
, iwl_bg_bt_runtime_config
);
1091 INIT_DELAYED_WORK(&priv
->hw_roc_disable_work
,
1092 iwlagn_disable_roc_work
);
1094 iwl_setup_scan_deferred_work(priv
);
1096 if (priv
->cfg
->bt_params
)
1097 iwlagn_bt_setup_deferred_work(priv
);
1099 init_timer(&priv
->statistics_periodic
);
1100 priv
->statistics_periodic
.data
= (unsigned long)priv
;
1101 priv
->statistics_periodic
.function
= iwl_bg_statistics_periodic
;
1103 init_timer(&priv
->ucode_trace
);
1104 priv
->ucode_trace
.data
= (unsigned long)priv
;
1105 priv
->ucode_trace
.function
= iwl_bg_ucode_trace
;
1108 void iwl_cancel_deferred_work(struct iwl_priv
*priv
)
1110 if (priv
->cfg
->bt_params
)
1111 iwlagn_bt_cancel_deferred_work(priv
);
1113 cancel_work_sync(&priv
->run_time_calib_work
);
1114 cancel_work_sync(&priv
->beacon_update
);
1116 iwl_cancel_scan_deferred_work(priv
);
1118 cancel_work_sync(&priv
->bt_full_concurrency
);
1119 cancel_work_sync(&priv
->bt_runtime_config
);
1120 cancel_delayed_work_sync(&priv
->hw_roc_disable_work
);
1122 del_timer_sync(&priv
->statistics_periodic
);
1123 del_timer_sync(&priv
->ucode_trace
);
1126 static void iwl_init_hw_rates(struct ieee80211_rate
*rates
)
1130 for (i
= 0; i
< IWL_RATE_COUNT_LEGACY
; i
++) {
1131 rates
[i
].bitrate
= iwl_rates
[i
].ieee
* 5;
1132 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
1133 rates
[i
].hw_value_short
= i
;
1135 if ((i
>= IWL_FIRST_CCK_RATE
) && (i
<= IWL_LAST_CCK_RATE
)) {
1137 * If CCK != 1M then set short preamble rate flag.
1140 (iwl_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
1141 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
1146 #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
1147 #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
1148 static void iwl_init_ht_hw_capab(const struct iwl_priv
*priv
,
1149 struct ieee80211_sta_ht_cap
*ht_info
,
1150 enum ieee80211_band band
)
1152 u16 max_bit_rate
= 0;
1153 u8 rx_chains_num
= priv
->hw_params
.rx_chains_num
;
1154 u8 tx_chains_num
= priv
->hw_params
.tx_chains_num
;
1157 memset(&ht_info
->mcs
, 0, sizeof(ht_info
->mcs
));
1159 ht_info
->ht_supported
= true;
1161 if (priv
->cfg
->ht_params
&&
1162 priv
->cfg
->ht_params
->ht_greenfield_support
)
1163 ht_info
->cap
|= IEEE80211_HT_CAP_GRN_FLD
;
1164 ht_info
->cap
|= IEEE80211_HT_CAP_SGI_20
;
1165 max_bit_rate
= MAX_BIT_RATE_20_MHZ
;
1166 if (priv
->hw_params
.ht40_channel
& BIT(band
)) {
1167 ht_info
->cap
|= IEEE80211_HT_CAP_SUP_WIDTH_20_40
;
1168 ht_info
->cap
|= IEEE80211_HT_CAP_SGI_40
;
1169 ht_info
->mcs
.rx_mask
[4] = 0x01;
1170 max_bit_rate
= MAX_BIT_RATE_40_MHZ
;
1173 if (iwlwifi_mod_params
.amsdu_size_8K
)
1174 ht_info
->cap
|= IEEE80211_HT_CAP_MAX_AMSDU
;
1176 ht_info
->ampdu_factor
= CFG_HT_RX_AMPDU_FACTOR_DEF
;
1177 ht_info
->ampdu_density
= CFG_HT_MPDU_DENSITY_DEF
;
1179 ht_info
->mcs
.rx_mask
[0] = 0xFF;
1180 if (rx_chains_num
>= 2)
1181 ht_info
->mcs
.rx_mask
[1] = 0xFF;
1182 if (rx_chains_num
>= 3)
1183 ht_info
->mcs
.rx_mask
[2] = 0xFF;
1185 /* Highest supported Rx data rate */
1186 max_bit_rate
*= rx_chains_num
;
1187 WARN_ON(max_bit_rate
& ~IEEE80211_HT_MCS_RX_HIGHEST_MASK
);
1188 ht_info
->mcs
.rx_highest
= cpu_to_le16(max_bit_rate
);
1190 /* Tx MCS capabilities */
1191 ht_info
->mcs
.tx_params
= IEEE80211_HT_MCS_TX_DEFINED
;
1192 if (tx_chains_num
!= rx_chains_num
) {
1193 ht_info
->mcs
.tx_params
|= IEEE80211_HT_MCS_TX_RX_DIFF
;
1194 ht_info
->mcs
.tx_params
|= ((tx_chains_num
- 1) <<
1195 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT
);
1200 * iwl_init_geos - Initialize mac80211's geo/channel info based from eeprom
1202 static int iwl_init_geos(struct iwl_priv
*priv
)
1204 struct iwl_channel_info
*ch
;
1205 struct ieee80211_supported_band
*sband
;
1206 struct ieee80211_channel
*channels
;
1207 struct ieee80211_channel
*geo_ch
;
1208 struct ieee80211_rate
*rates
;
1210 s8 max_tx_power
= IWLAGN_TX_POWER_TARGET_POWER_MIN
;
1212 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
1213 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
1214 IWL_DEBUG_INFO(priv
, "Geography modes already initialized.\n");
1215 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
1219 channels
= kcalloc(priv
->channel_count
,
1220 sizeof(struct ieee80211_channel
), GFP_KERNEL
);
1224 rates
= kcalloc(IWL_RATE_COUNT_LEGACY
, sizeof(struct ieee80211_rate
),
1231 /* 5.2GHz channels start after the 2.4GHz channels */
1232 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
1233 sband
->channels
= &channels
[ARRAY_SIZE(iwl_eeprom_band_1
)];
1235 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
1236 sband
->n_bitrates
= IWL_RATE_COUNT_LEGACY
- IWL_FIRST_OFDM_RATE
;
1238 if (priv
->hw_params
.sku
& EEPROM_SKU_CAP_11N_ENABLE
)
1239 iwl_init_ht_hw_capab(priv
, &sband
->ht_cap
,
1240 IEEE80211_BAND_5GHZ
);
1242 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
1243 sband
->channels
= channels
;
1245 sband
->bitrates
= rates
;
1246 sband
->n_bitrates
= IWL_RATE_COUNT_LEGACY
;
1248 if (priv
->hw_params
.sku
& EEPROM_SKU_CAP_11N_ENABLE
)
1249 iwl_init_ht_hw_capab(priv
, &sband
->ht_cap
,
1250 IEEE80211_BAND_2GHZ
);
1252 priv
->ieee_channels
= channels
;
1253 priv
->ieee_rates
= rates
;
1255 for (i
= 0; i
< priv
->channel_count
; i
++) {
1256 ch
= &priv
->channel_info
[i
];
1258 /* FIXME: might be removed if scan is OK */
1259 if (!is_channel_valid(ch
))
1262 sband
= &priv
->bands
[ch
->band
];
1264 geo_ch
= &sband
->channels
[sband
->n_channels
++];
1266 geo_ch
->center_freq
=
1267 ieee80211_channel_to_frequency(ch
->channel
, ch
->band
);
1268 geo_ch
->max_power
= ch
->max_power_avg
;
1269 geo_ch
->max_antenna_gain
= 0xff;
1270 geo_ch
->hw_value
= ch
->channel
;
1272 if (is_channel_valid(ch
)) {
1273 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
1274 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
1276 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
1277 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
1279 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
1280 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
1282 geo_ch
->flags
|= ch
->ht40_extension_channel
;
1284 if (ch
->max_power_avg
> max_tx_power
)
1285 max_tx_power
= ch
->max_power_avg
;
1287 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
1290 IWL_DEBUG_INFO(priv
, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n",
1291 ch
->channel
, geo_ch
->center_freq
,
1292 is_channel_a_band(ch
) ? "5.2" : "2.4",
1293 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
1294 "restricted" : "valid",
1298 priv
->tx_power_device_lmt
= max_tx_power
;
1299 priv
->tx_power_user_lmt
= max_tx_power
;
1300 priv
->tx_power_next
= max_tx_power
;
1302 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) &&
1303 priv
->hw_params
.sku
& EEPROM_SKU_CAP_BAND_52GHZ
) {
1304 IWL_INFO(priv
, "Incorrectly detected BG card as ABG. "
1305 "Please send your %s to maintainer.\n",
1306 priv
->trans
->hw_id_str
);
1307 priv
->hw_params
.sku
&= ~EEPROM_SKU_CAP_BAND_52GHZ
;
1310 IWL_INFO(priv
, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
1311 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
1312 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
1314 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
1320 * iwl_free_geos - undo allocations in iwl_init_geos
1322 static void iwl_free_geos(struct iwl_priv
*priv
)
1324 kfree(priv
->ieee_channels
);
1325 kfree(priv
->ieee_rates
);
1326 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
1329 int iwl_init_drv(struct iwl_priv
*priv
)
1333 spin_lock_init(&priv
->sta_lock
);
1335 mutex_init(&priv
->mutex
);
1337 INIT_LIST_HEAD(&priv
->calib_results
);
1339 priv
->ieee_channels
= NULL
;
1340 priv
->ieee_rates
= NULL
;
1341 priv
->band
= IEEE80211_BAND_2GHZ
;
1343 priv
->plcp_delta_threshold
=
1344 priv
->cfg
->base_params
->plcp_delta_threshold
;
1346 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
1347 priv
->current_ht_config
.smps
= IEEE80211_SMPS_STATIC
;
1348 priv
->missed_beacon_threshold
= IWL_MISSED_BEACON_THRESHOLD_DEF
;
1349 priv
->agg_tids_count
= 0;
1351 priv
->ucode_owner
= IWL_OWNERSHIP_DRIVER
;
1353 priv
->rx_statistics_jiffies
= jiffies
;
1355 /* Choose which receivers/antennas to use */
1356 iwlagn_set_rxon_chain(priv
, &priv
->contexts
[IWL_RXON_CTX_BSS
]);
1358 iwl_init_scan_params(priv
);
1361 if (priv
->cfg
->bt_params
&&
1362 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
1363 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
1364 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
1365 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
1366 priv
->bt_on_thresh
= BT_ON_THRESHOLD_DEF
;
1367 priv
->bt_duration
= BT_DURATION_LIMIT_DEF
;
1368 priv
->dynamic_frag_thresh
= BT_FRAG_THRESHOLD_DEF
;
1371 ret
= iwl_init_channel_map(priv
);
1373 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
1377 ret
= iwl_init_geos(priv
);
1379 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
1380 goto err_free_channel_map
;
1382 iwl_init_hw_rates(priv
->ieee_rates
);
1386 err_free_channel_map
:
1387 iwl_free_channel_map(priv
);
1392 void iwl_uninit_drv(struct iwl_priv
*priv
)
1394 iwl_free_geos(priv
);
1395 iwl_free_channel_map(priv
);
1396 kfree(priv
->scan_cmd
);
1397 kfree(priv
->beacon_cmd
);
1398 kfree(rcu_dereference_raw(priv
->noa_data
));
1399 iwl_calib_free_results(priv
);
1400 #ifdef CONFIG_IWLWIFI_DEBUGFS
1401 kfree(priv
->wowlan_sram
);
1405 void iwl_set_hw_params(struct iwl_priv
*priv
)
1407 if (priv
->cfg
->ht_params
)
1408 priv
->hw_params
.use_rts_for_aggregation
=
1409 priv
->cfg
->ht_params
->use_rts_for_aggregation
;
1411 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_ALL
)
1412 priv
->hw_params
.sku
&= ~EEPROM_SKU_CAP_11N_ENABLE
;
1414 /* Device-specific setup */
1415 priv
->lib
->set_hw_params(priv
);
1420 void iwl_debug_config(struct iwl_priv
*priv
)
1422 dev_printk(KERN_INFO
, priv
->trans
->dev
, "CONFIG_IWLWIFI_DEBUG "
1423 #ifdef CONFIG_IWLWIFI_DEBUG
1428 dev_printk(KERN_INFO
, priv
->trans
->dev
, "CONFIG_IWLWIFI_DEBUGFS "
1429 #ifdef CONFIG_IWLWIFI_DEBUGFS
1434 dev_printk(KERN_INFO
, priv
->trans
->dev
, "CONFIG_IWLWIFI_DEVICE_TRACING "
1435 #ifdef CONFIG_IWLWIFI_DEVICE_TRACING
1441 dev_printk(KERN_INFO
, priv
->trans
->dev
, "CONFIG_IWLWIFI_DEVICE_TESTMODE "
1442 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
1447 dev_printk(KERN_INFO
, priv
->trans
->dev
, "CONFIG_IWLWIFI_P2P "
1448 #ifdef CONFIG_IWLWIFI_P2P
1455 static struct iwl_op_mode
*iwl_op_mode_dvm_start(struct iwl_trans
*trans
,
1456 const struct iwl_cfg
*cfg
,
1457 const struct iwl_fw
*fw
)
1459 struct iwl_priv
*priv
;
1460 struct ieee80211_hw
*hw
;
1461 struct iwl_op_mode
*op_mode
;
1464 struct iwl_trans_config trans_cfg
;
1465 static const u8 no_reclaim_cmds
[] = {
1469 REPLY_COMPRESSED_BA
,
1470 STATISTICS_NOTIFICATION
,
1475 /************************
1476 * 1. Allocating HW data
1477 ************************/
1478 hw
= iwl_alloc_all();
1480 pr_err("%s: Cannot allocate network device\n", cfg
->name
);
1485 op_mode
->ops
= &iwl_dvm_ops
;
1486 priv
= IWL_OP_MODE_GET_DVM(op_mode
);
1487 priv
->trans
= trans
;
1488 priv
->dev
= trans
->dev
;
1492 switch (priv
->cfg
->device_family
) {
1493 case IWL_DEVICE_FAMILY_1000
:
1494 case IWL_DEVICE_FAMILY_100
:
1495 priv
->lib
= &iwl1000_lib
;
1497 case IWL_DEVICE_FAMILY_2000
:
1498 case IWL_DEVICE_FAMILY_105
:
1499 priv
->lib
= &iwl2000_lib
;
1501 case IWL_DEVICE_FAMILY_2030
:
1502 case IWL_DEVICE_FAMILY_135
:
1503 priv
->lib
= &iwl2030_lib
;
1505 case IWL_DEVICE_FAMILY_5000
:
1506 priv
->lib
= &iwl5000_lib
;
1508 case IWL_DEVICE_FAMILY_5150
:
1509 priv
->lib
= &iwl5150_lib
;
1511 case IWL_DEVICE_FAMILY_6000
:
1512 case IWL_DEVICE_FAMILY_6005
:
1513 case IWL_DEVICE_FAMILY_6000i
:
1514 case IWL_DEVICE_FAMILY_6050
:
1515 case IWL_DEVICE_FAMILY_6150
:
1516 priv
->lib
= &iwl6000_lib
;
1518 case IWL_DEVICE_FAMILY_6030
:
1519 priv
->lib
= &iwl6030_lib
;
1525 if (WARN_ON(!priv
->lib
))
1529 * Populate the state variables that the transport layer needs
1532 trans_cfg
.op_mode
= op_mode
;
1533 trans_cfg
.no_reclaim_cmds
= no_reclaim_cmds
;
1534 trans_cfg
.n_no_reclaim_cmds
= ARRAY_SIZE(no_reclaim_cmds
);
1535 trans_cfg
.rx_buf_size_8k
= iwlwifi_mod_params
.amsdu_size_8K
;
1536 if (!iwlwifi_mod_params
.wd_disable
)
1537 trans_cfg
.queue_watchdog_timeout
=
1538 priv
->cfg
->base_params
->wd_timeout
;
1540 trans_cfg
.queue_watchdog_timeout
= IWL_WATCHHDOG_DISABLED
;
1541 trans_cfg
.command_names
= iwl_dvm_cmd_strings
;
1543 ucode_flags
= fw
->ucode_capa
.flags
;
1545 #ifndef CONFIG_IWLWIFI_P2P
1546 ucode_flags
&= ~IWL_UCODE_TLV_FLAGS_P2P
;
1549 if (ucode_flags
& IWL_UCODE_TLV_FLAGS_PAN
) {
1550 priv
->sta_key_max_num
= STA_KEY_MAX_NUM_PAN
;
1551 trans_cfg
.cmd_queue
= IWL_IPAN_CMD_QUEUE_NUM
;
1552 trans_cfg
.queue_to_fifo
= iwlagn_ipan_queue_to_tx_fifo
;
1553 trans_cfg
.n_queue_to_fifo
=
1554 ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo
);
1556 priv
->sta_key_max_num
= STA_KEY_MAX_NUM
;
1557 trans_cfg
.cmd_queue
= IWL_DEFAULT_CMD_QUEUE_NUM
;
1558 trans_cfg
.queue_to_fifo
= iwlagn_default_queue_to_tx_fifo
;
1559 trans_cfg
.n_queue_to_fifo
=
1560 ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo
);
1563 /* Configure transport layer */
1564 iwl_trans_configure(priv
->trans
, &trans_cfg
);
1566 /* At this point both hw and priv are allocated. */
1568 SET_IEEE80211_DEV(priv
->hw
, priv
->trans
->dev
);
1570 /* show what debugging capabilities we have */
1571 iwl_debug_config(priv
);
1573 IWL_DEBUG_INFO(priv
, "*** LOAD DRIVER ***\n");
1575 /* is antenna coupling more than 35dB ? */
1576 priv
->bt_ant_couple_ok
=
1577 (iwlwifi_mod_params
.ant_coupling
>
1578 IWL_BT_ANTENNA_COUPLING_THRESHOLD
) ?
1581 /* enable/disable bt channel inhibition */
1582 priv
->bt_ch_announce
= iwlwifi_mod_params
.bt_ch_announce
;
1583 IWL_DEBUG_INFO(priv
, "BT channel inhibition is %s\n",
1584 (priv
->bt_ch_announce
) ? "On" : "Off");
1586 /* these spin locks will be used in apm_ops.init and EEPROM access
1587 * we should init now
1589 spin_lock_init(&priv
->trans
->reg_lock
);
1590 spin_lock_init(&priv
->statistics
.lock
);
1592 /***********************
1593 * 2. Read REV register
1594 ***********************/
1595 IWL_INFO(priv
, "Detected %s, REV=0x%X\n",
1596 priv
->cfg
->name
, priv
->trans
->hw_rev
);
1598 if (iwl_trans_start_hw(priv
->trans
))
1601 /* Read the EEPROM */
1602 if (iwl_eeprom_init(priv
, priv
->trans
->hw_rev
)) {
1603 IWL_ERR(priv
, "Unable to init EEPROM\n");
1606 /* Reset chip to save power until we load uCode during "up". */
1607 iwl_trans_stop_hw(priv
->trans
, false);
1609 if (iwl_eeprom_check_version(priv
))
1610 goto out_free_eeprom
;
1612 if (iwl_eeprom_init_hw_params(priv
))
1613 goto out_free_eeprom
;
1615 /* extract MAC Address */
1616 iwl_eeprom_get_mac(priv
, priv
->addresses
[0].addr
);
1617 IWL_DEBUG_INFO(priv
, "MAC address: %pM\n", priv
->addresses
[0].addr
);
1618 priv
->hw
->wiphy
->addresses
= priv
->addresses
;
1619 priv
->hw
->wiphy
->n_addresses
= 1;
1620 num_mac
= iwl_eeprom_query16(priv
, EEPROM_NUM_MAC_ADDRESS
);
1622 memcpy(priv
->addresses
[1].addr
, priv
->addresses
[0].addr
,
1624 priv
->addresses
[1].addr
[5]++;
1625 priv
->hw
->wiphy
->n_addresses
++;
1628 /************************
1629 * 4. Setup HW constants
1630 ************************/
1631 iwl_set_hw_params(priv
);
1633 if (!(priv
->hw_params
.sku
& EEPROM_SKU_CAP_IPAN_ENABLE
)) {
1634 IWL_DEBUG_INFO(priv
, "Your EEPROM disabled PAN");
1635 ucode_flags
&= ~IWL_UCODE_TLV_FLAGS_PAN
;
1637 * if not PAN, then don't support P2P -- might be a uCode
1638 * packaging bug or due to the eeprom check above
1640 ucode_flags
&= ~IWL_UCODE_TLV_FLAGS_P2P
;
1641 priv
->sta_key_max_num
= STA_KEY_MAX_NUM
;
1642 trans_cfg
.cmd_queue
= IWL_DEFAULT_CMD_QUEUE_NUM
;
1643 trans_cfg
.queue_to_fifo
= iwlagn_default_queue_to_tx_fifo
;
1644 trans_cfg
.n_queue_to_fifo
=
1645 ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo
);
1647 /* Configure transport layer again*/
1648 iwl_trans_configure(priv
->trans
, &trans_cfg
);
1651 /*******************
1653 *******************/
1654 for (i
= 0; i
< IWL_MAX_HW_QUEUES
; i
++) {
1655 priv
->queue_to_mac80211
[i
] = IWL_INVALID_MAC80211_QUEUE
;
1656 if (i
< IWLAGN_FIRST_AMPDU_QUEUE
&&
1657 i
!= IWL_DEFAULT_CMD_QUEUE_NUM
&&
1658 i
!= IWL_IPAN_CMD_QUEUE_NUM
)
1659 priv
->queue_to_mac80211
[i
] = i
;
1660 atomic_set(&priv
->queue_stop_count
[i
], 0);
1663 WARN_ON(trans_cfg
.queue_to_fifo
[trans_cfg
.cmd_queue
] !=
1664 IWLAGN_CMD_FIFO_NUM
);
1666 if (iwl_init_drv(priv
))
1667 goto out_free_eeprom
;
1669 /* At this point both hw and priv are initialized. */
1671 /********************
1673 ********************/
1674 iwl_setup_deferred_work(priv
);
1675 iwl_setup_rx_handlers(priv
);
1676 iwl_testmode_init(priv
);
1678 iwl_power_initialize(priv
);
1679 iwl_tt_initialize(priv
);
1681 snprintf(priv
->hw
->wiphy
->fw_version
,
1682 sizeof(priv
->hw
->wiphy
->fw_version
),
1683 "%s", fw
->fw_version
);
1685 priv
->new_scan_threshold_behaviour
=
1686 !!(ucode_flags
& IWL_UCODE_TLV_FLAGS_NEWSCAN
);
1688 priv
->phy_calib_chain_noise_reset_cmd
=
1689 fw
->ucode_capa
.standard_phy_calibration_size
;
1690 priv
->phy_calib_chain_noise_gain_cmd
=
1691 fw
->ucode_capa
.standard_phy_calibration_size
+ 1;
1693 /* initialize all valid contexts */
1694 iwl_init_context(priv
, ucode_flags
);
1696 /**************************************************
1697 * This is still part of probe() in a sense...
1699 * 7. Setup and register with mac80211 and debugfs
1700 **************************************************/
1701 if (iwlagn_mac_setup_register(priv
, &fw
->ucode_capa
))
1702 goto out_destroy_workqueue
;
1704 if (iwl_dbgfs_register(priv
, DRV_NAME
))
1706 "failed to create debugfs files. Ignoring error\n");
1710 out_destroy_workqueue
:
1711 destroy_workqueue(priv
->workqueue
);
1712 priv
->workqueue
= NULL
;
1713 iwl_uninit_drv(priv
);
1715 iwl_eeprom_free(priv
);
1717 ieee80211_free_hw(priv
->hw
);
1723 void iwl_op_mode_dvm_stop(struct iwl_op_mode
*op_mode
)
1725 struct iwl_priv
*priv
= IWL_OP_MODE_GET_DVM(op_mode
);
1727 IWL_DEBUG_INFO(priv
, "*** UNLOAD DRIVER ***\n");
1729 iwl_dbgfs_unregister(priv
);
1731 iwl_testmode_cleanup(priv
);
1732 iwlagn_mac_unregister(priv
);
1736 /*This will stop the queues, move the device to low power state */
1737 priv
->ucode_loaded
= false;
1738 iwl_trans_stop_device(priv
->trans
);
1740 iwl_eeprom_free(priv
);
1742 /*netif_stop_queue(dev); */
1743 flush_workqueue(priv
->workqueue
);
1745 /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes
1746 * priv->workqueue... so we can't take down the workqueue
1748 destroy_workqueue(priv
->workqueue
);
1749 priv
->workqueue
= NULL
;
1751 iwl_uninit_drv(priv
);
1753 dev_kfree_skb(priv
->beacon_skb
);
1755 iwl_trans_stop_hw(priv
->trans
, true);
1756 ieee80211_free_hw(priv
->hw
);
1759 static const char * const desc_lookup_text
[] = {
1764 "NMI_INTERRUPT_WDG",
1768 "HW_ERROR_TUNE_LOCK",
1769 "HW_ERROR_TEMPERATURE",
1770 "ILLEGAL_CHAN_FREQ",
1773 "NMI_INTERRUPT_HOST",
1774 "NMI_INTERRUPT_ACTION_PT",
1775 "NMI_INTERRUPT_UNKNOWN",
1776 "UCODE_VERSION_MISMATCH",
1777 "HW_ERROR_ABS_LOCK",
1778 "HW_ERROR_CAL_LOCK_FAIL",
1779 "NMI_INTERRUPT_INST_ACTION_PT",
1780 "NMI_INTERRUPT_DATA_ACTION_PT",
1782 "NMI_INTERRUPT_TRM",
1783 "NMI_INTERRUPT_BREAK_POINT",
1790 static struct { char *name
; u8 num
; } advanced_lookup
[] = {
1791 { "NMI_INTERRUPT_WDG", 0x34 },
1792 { "SYSASSERT", 0x35 },
1793 { "UCODE_VERSION_MISMATCH", 0x37 },
1794 { "BAD_COMMAND", 0x38 },
1795 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
1796 { "FATAL_ERROR", 0x3D },
1797 { "NMI_TRM_HW_ERR", 0x46 },
1798 { "NMI_INTERRUPT_TRM", 0x4C },
1799 { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
1800 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
1801 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
1802 { "NMI_INTERRUPT_HOST", 0x66 },
1803 { "NMI_INTERRUPT_ACTION_PT", 0x7C },
1804 { "NMI_INTERRUPT_UNKNOWN", 0x84 },
1805 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
1806 { "ADVANCED_SYSASSERT", 0 },
1809 static const char *desc_lookup(u32 num
)
1812 int max
= ARRAY_SIZE(desc_lookup_text
);
1815 return desc_lookup_text
[num
];
1817 max
= ARRAY_SIZE(advanced_lookup
) - 1;
1818 for (i
= 0; i
< max
; i
++) {
1819 if (advanced_lookup
[i
].num
== num
)
1822 return advanced_lookup
[i
].name
;
1825 #define ERROR_START_OFFSET (1 * sizeof(u32))
1826 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1828 static void iwl_dump_nic_error_log(struct iwl_priv
*priv
)
1830 struct iwl_trans
*trans
= priv
->trans
;
1832 struct iwl_error_event_table table
;
1834 base
= priv
->device_pointers
.error_event_table
;
1835 if (priv
->cur_ucode
== IWL_UCODE_INIT
) {
1837 base
= priv
->fw
->init_errlog_ptr
;
1840 base
= priv
->fw
->inst_errlog_ptr
;
1843 if (!iwlagn_hw_valid_rtc_data_addr(base
)) {
1845 "Not valid error log pointer 0x%08X for %s uCode\n",
1847 (priv
->cur_ucode
== IWL_UCODE_INIT
)
1852 /*TODO: Update dbgfs with ISR error stats obtained below */
1853 iwl_read_targ_mem_words(trans
, base
, &table
, sizeof(table
));
1855 if (ERROR_START_OFFSET
<= table
.valid
* ERROR_ELEM_SIZE
) {
1856 IWL_ERR(trans
, "Start IWL Error Log Dump:\n");
1857 IWL_ERR(trans
, "Status: 0x%08lX, count: %d\n",
1858 priv
->status
, table
.valid
);
1861 trace_iwlwifi_dev_ucode_error(trans
->dev
, table
.error_id
, table
.tsf_low
,
1862 table
.data1
, table
.data2
, table
.line
,
1863 table
.blink1
, table
.blink2
, table
.ilink1
,
1864 table
.ilink2
, table
.bcon_time
, table
.gp1
,
1865 table
.gp2
, table
.gp3
, table
.ucode_ver
,
1866 table
.hw_ver
, table
.brd_ver
);
1867 IWL_ERR(priv
, "0x%08X | %-28s\n", table
.error_id
,
1868 desc_lookup(table
.error_id
));
1869 IWL_ERR(priv
, "0x%08X | uPc\n", table
.pc
);
1870 IWL_ERR(priv
, "0x%08X | branchlink1\n", table
.blink1
);
1871 IWL_ERR(priv
, "0x%08X | branchlink2\n", table
.blink2
);
1872 IWL_ERR(priv
, "0x%08X | interruptlink1\n", table
.ilink1
);
1873 IWL_ERR(priv
, "0x%08X | interruptlink2\n", table
.ilink2
);
1874 IWL_ERR(priv
, "0x%08X | data1\n", table
.data1
);
1875 IWL_ERR(priv
, "0x%08X | data2\n", table
.data2
);
1876 IWL_ERR(priv
, "0x%08X | line\n", table
.line
);
1877 IWL_ERR(priv
, "0x%08X | beacon time\n", table
.bcon_time
);
1878 IWL_ERR(priv
, "0x%08X | tsf low\n", table
.tsf_low
);
1879 IWL_ERR(priv
, "0x%08X | tsf hi\n", table
.tsf_hi
);
1880 IWL_ERR(priv
, "0x%08X | time gp1\n", table
.gp1
);
1881 IWL_ERR(priv
, "0x%08X | time gp2\n", table
.gp2
);
1882 IWL_ERR(priv
, "0x%08X | time gp3\n", table
.gp3
);
1883 IWL_ERR(priv
, "0x%08X | uCode version\n", table
.ucode_ver
);
1884 IWL_ERR(priv
, "0x%08X | hw version\n", table
.hw_ver
);
1885 IWL_ERR(priv
, "0x%08X | board version\n", table
.brd_ver
);
1886 IWL_ERR(priv
, "0x%08X | hcmd\n", table
.hcmd
);
1887 IWL_ERR(priv
, "0x%08X | isr0\n", table
.isr0
);
1888 IWL_ERR(priv
, "0x%08X | isr1\n", table
.isr1
);
1889 IWL_ERR(priv
, "0x%08X | isr2\n", table
.isr2
);
1890 IWL_ERR(priv
, "0x%08X | isr3\n", table
.isr3
);
1891 IWL_ERR(priv
, "0x%08X | isr4\n", table
.isr4
);
1892 IWL_ERR(priv
, "0x%08X | isr_pref\n", table
.isr_pref
);
1893 IWL_ERR(priv
, "0x%08X | wait_event\n", table
.wait_event
);
1894 IWL_ERR(priv
, "0x%08X | l2p_control\n", table
.l2p_control
);
1895 IWL_ERR(priv
, "0x%08X | l2p_duration\n", table
.l2p_duration
);
1896 IWL_ERR(priv
, "0x%08X | l2p_mhvalid\n", table
.l2p_mhvalid
);
1897 IWL_ERR(priv
, "0x%08X | l2p_addr_match\n", table
.l2p_addr_match
);
1898 IWL_ERR(priv
, "0x%08X | lmpm_pmg_sel\n", table
.lmpm_pmg_sel
);
1899 IWL_ERR(priv
, "0x%08X | timestamp\n", table
.u_timestamp
);
1900 IWL_ERR(priv
, "0x%08X | flow_handler\n", table
.flow_handler
);
1903 #define EVENT_START_OFFSET (4 * sizeof(u32))
1906 * iwl_print_event_log - Dump error event log to syslog
1909 static int iwl_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
1910 u32 num_events
, u32 mode
,
1911 int pos
, char **buf
, size_t bufsz
)
1914 u32 base
; /* SRAM byte address of event log header */
1915 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
1916 u32 ptr
; /* SRAM byte address of log data */
1917 u32 ev
, time
, data
; /* event log data */
1918 unsigned long reg_flags
;
1920 struct iwl_trans
*trans
= priv
->trans
;
1922 if (num_events
== 0)
1925 base
= priv
->device_pointers
.log_event_table
;
1926 if (priv
->cur_ucode
== IWL_UCODE_INIT
) {
1928 base
= priv
->fw
->init_evtlog_ptr
;
1931 base
= priv
->fw
->inst_evtlog_ptr
;
1935 event_size
= 2 * sizeof(u32
);
1937 event_size
= 3 * sizeof(u32
);
1939 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
1941 /* Make sure device is powered up for SRAM reads */
1942 spin_lock_irqsave(&trans
->reg_lock
, reg_flags
);
1943 if (unlikely(!iwl_grab_nic_access(trans
)))
1946 /* Set starting address; reads will auto-increment */
1947 iwl_write32(trans
, HBUS_TARG_MEM_RADDR
, ptr
);
1949 /* "time" is actually "data" for mode 0 (no timestamp).
1950 * place event id # at far right for easier visual parsing. */
1951 for (i
= 0; i
< num_events
; i
++) {
1952 ev
= iwl_read32(trans
, HBUS_TARG_MEM_RDAT
);
1953 time
= iwl_read32(trans
, HBUS_TARG_MEM_RDAT
);
1957 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
1958 "EVT_LOG:0x%08x:%04u\n",
1961 trace_iwlwifi_dev_ucode_event(trans
->dev
, 0,
1963 IWL_ERR(priv
, "EVT_LOG:0x%08x:%04u\n",
1967 data
= iwl_read32(trans
, HBUS_TARG_MEM_RDAT
);
1969 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
1970 "EVT_LOGT:%010u:0x%08x:%04u\n",
1973 IWL_ERR(priv
, "EVT_LOGT:%010u:0x%08x:%04u\n",
1975 trace_iwlwifi_dev_ucode_event(trans
->dev
, time
,
1981 /* Allow device to power down */
1982 iwl_release_nic_access(trans
);
1984 spin_unlock_irqrestore(&trans
->reg_lock
, reg_flags
);
1989 * iwl_print_last_event_logs - Dump the newest # of event log to syslog
1991 static int iwl_print_last_event_logs(struct iwl_priv
*priv
, u32 capacity
,
1992 u32 num_wraps
, u32 next_entry
,
1994 int pos
, char **buf
, size_t bufsz
)
1997 * display the newest DEFAULT_LOG_ENTRIES entries
1998 * i.e the entries just before the next ont that uCode would fill.
2001 if (next_entry
< size
) {
2002 pos
= iwl_print_event_log(priv
,
2003 capacity
- (size
- next_entry
),
2004 size
- next_entry
, mode
,
2006 pos
= iwl_print_event_log(priv
, 0,
2010 pos
= iwl_print_event_log(priv
, next_entry
- size
,
2011 size
, mode
, pos
, buf
, bufsz
);
2013 if (next_entry
< size
) {
2014 pos
= iwl_print_event_log(priv
, 0, next_entry
,
2015 mode
, pos
, buf
, bufsz
);
2017 pos
= iwl_print_event_log(priv
, next_entry
- size
,
2018 size
, mode
, pos
, buf
, bufsz
);
2024 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
2026 int iwl_dump_nic_event_log(struct iwl_priv
*priv
, bool full_log
,
2027 char **buf
, bool display
)
2029 u32 base
; /* SRAM byte address of event log header */
2030 u32 capacity
; /* event log capacity in # entries */
2031 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
2032 u32 num_wraps
; /* # times uCode wrapped to top of log */
2033 u32 next_entry
; /* index of next entry to be written by uCode */
2034 u32 size
; /* # entries that we'll print */
2038 struct iwl_trans
*trans
= priv
->trans
;
2040 base
= priv
->device_pointers
.log_event_table
;
2041 if (priv
->cur_ucode
== IWL_UCODE_INIT
) {
2042 logsize
= priv
->fw
->init_evtlog_size
;
2044 base
= priv
->fw
->init_evtlog_ptr
;
2046 logsize
= priv
->fw
->inst_evtlog_size
;
2048 base
= priv
->fw
->inst_evtlog_ptr
;
2051 if (!iwlagn_hw_valid_rtc_data_addr(base
)) {
2053 "Invalid event log pointer 0x%08X for %s uCode\n",
2055 (priv
->cur_ucode
== IWL_UCODE_INIT
)
2060 /* event log header */
2061 capacity
= iwl_read_targ_mem(trans
, base
);
2062 mode
= iwl_read_targ_mem(trans
, base
+ (1 * sizeof(u32
)));
2063 num_wraps
= iwl_read_targ_mem(trans
, base
+ (2 * sizeof(u32
)));
2064 next_entry
= iwl_read_targ_mem(trans
, base
+ (3 * sizeof(u32
)));
2066 if (capacity
> logsize
) {
2067 IWL_ERR(priv
, "Log capacity %d is bogus, limit to %d "
2068 "entries\n", capacity
, logsize
);
2072 if (next_entry
> logsize
) {
2073 IWL_ERR(priv
, "Log write index %d is bogus, limit to %d\n",
2074 next_entry
, logsize
);
2075 next_entry
= logsize
;
2078 size
= num_wraps
? capacity
: next_entry
;
2080 /* bail out if nothing in log */
2082 IWL_ERR(trans
, "Start IWL Event Log Dump: nothing in log\n");
2086 #ifdef CONFIG_IWLWIFI_DEBUG
2087 if (!(iwl_have_debug_level(IWL_DL_FW_ERRORS
)) && !full_log
)
2088 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
2089 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
2091 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
2092 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
2094 IWL_ERR(priv
, "Start IWL Event Log Dump: display last %u entries\n",
2097 #ifdef CONFIG_IWLWIFI_DEBUG
2100 bufsz
= capacity
* 48;
2103 *buf
= kmalloc(bufsz
, GFP_KERNEL
);
2107 if (iwl_have_debug_level(IWL_DL_FW_ERRORS
) || full_log
) {
2109 * if uCode has wrapped back to top of log,
2110 * start at the oldest entry,
2111 * i.e the next one that uCode would fill.
2114 pos
= iwl_print_event_log(priv
, next_entry
,
2115 capacity
- next_entry
, mode
,
2117 /* (then/else) start at top of log */
2118 pos
= iwl_print_event_log(priv
, 0,
2119 next_entry
, mode
, pos
, buf
, bufsz
);
2121 pos
= iwl_print_last_event_logs(priv
, capacity
, num_wraps
,
2122 next_entry
, size
, mode
,
2125 pos
= iwl_print_last_event_logs(priv
, capacity
, num_wraps
,
2126 next_entry
, size
, mode
,
2132 static void iwlagn_fw_error(struct iwl_priv
*priv
, bool ondemand
)
2134 unsigned int reload_msec
;
2135 unsigned long reload_jiffies
;
2137 #ifdef CONFIG_IWLWIFI_DEBUG
2138 if (iwl_have_debug_level(IWL_DL_FW_ERRORS
))
2139 iwl_print_rx_config_cmd(priv
, IWL_RXON_CTX_BSS
);
2142 /* uCode is no longer loaded. */
2143 priv
->ucode_loaded
= false;
2145 /* Set the FW error flag -- cleared on iwl_down */
2146 set_bit(STATUS_FW_ERROR
, &priv
->status
);
2148 iwl_abort_notification_waits(&priv
->notif_wait
);
2150 /* Keep the restart process from trying to send host
2151 * commands by clearing the ready bit */
2152 clear_bit(STATUS_READY
, &priv
->status
);
2154 wake_up(&priv
->trans
->wait_command_queue
);
2158 * If firmware keep reloading, then it indicate something
2159 * serious wrong and firmware having problem to recover
2160 * from it. Instead of keep trying which will fill the syslog
2161 * and hang the system, let's just stop it
2163 reload_jiffies
= jiffies
;
2164 reload_msec
= jiffies_to_msecs((long) reload_jiffies
-
2165 (long) priv
->reload_jiffies
);
2166 priv
->reload_jiffies
= reload_jiffies
;
2167 if (reload_msec
<= IWL_MIN_RELOAD_DURATION
) {
2168 priv
->reload_count
++;
2169 if (priv
->reload_count
>= IWL_MAX_CONTINUE_RELOAD_CNT
) {
2170 IWL_ERR(priv
, "BUG_ON, Stop restarting\n");
2174 priv
->reload_count
= 0;
2177 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
2178 if (iwlwifi_mod_params
.restart_fw
) {
2179 IWL_DEBUG_FW_ERRORS(priv
,
2180 "Restarting adapter due to uCode error.\n");
2181 queue_work(priv
->workqueue
, &priv
->restart
);
2183 IWL_DEBUG_FW_ERRORS(priv
,
2184 "Detected FW error, but not restarting\n");
2188 void iwl_nic_error(struct iwl_op_mode
*op_mode
)
2190 struct iwl_priv
*priv
= IWL_OP_MODE_GET_DVM(op_mode
);
2192 IWL_ERR(priv
, "Loaded firmware version: %s\n",
2193 priv
->fw
->fw_version
);
2195 iwl_dump_nic_error_log(priv
);
2196 iwl_dump_nic_event_log(priv
, false, NULL
, false);
2198 iwlagn_fw_error(priv
, false);
2201 void iwl_cmd_queue_full(struct iwl_op_mode
*op_mode
)
2203 struct iwl_priv
*priv
= IWL_OP_MODE_GET_DVM(op_mode
);
2205 if (!iwl_check_for_ct_kill(priv
)) {
2206 IWL_ERR(priv
, "Restarting adapter queue is full\n");
2207 iwlagn_fw_error(priv
, false);
2211 void iwl_nic_config(struct iwl_op_mode
*op_mode
)
2213 struct iwl_priv
*priv
= IWL_OP_MODE_GET_DVM(op_mode
);
2215 priv
->lib
->nic_config(priv
);
2218 static void iwl_wimax_active(struct iwl_op_mode
*op_mode
)
2220 struct iwl_priv
*priv
= IWL_OP_MODE_GET_DVM(op_mode
);
2222 clear_bit(STATUS_READY
, &priv
->status
);
2223 IWL_ERR(priv
, "RF is used by WiMAX\n");
2226 void iwl_stop_sw_queue(struct iwl_op_mode
*op_mode
, int queue
)
2228 struct iwl_priv
*priv
= IWL_OP_MODE_GET_DVM(op_mode
);
2229 int mq
= priv
->queue_to_mac80211
[queue
];
2231 if (WARN_ON_ONCE(mq
== IWL_INVALID_MAC80211_QUEUE
))
2234 if (atomic_inc_return(&priv
->queue_stop_count
[mq
]) > 1) {
2235 IWL_DEBUG_TX_QUEUES(priv
,
2236 "queue %d (mac80211 %d) already stopped\n",
2241 set_bit(mq
, &priv
->transport_queue_stop
);
2242 ieee80211_stop_queue(priv
->hw
, mq
);
2245 void iwl_wake_sw_queue(struct iwl_op_mode
*op_mode
, int queue
)
2247 struct iwl_priv
*priv
= IWL_OP_MODE_GET_DVM(op_mode
);
2248 int mq
= priv
->queue_to_mac80211
[queue
];
2250 if (WARN_ON_ONCE(mq
== IWL_INVALID_MAC80211_QUEUE
))
2253 if (atomic_dec_return(&priv
->queue_stop_count
[mq
]) > 0) {
2254 IWL_DEBUG_TX_QUEUES(priv
,
2255 "queue %d (mac80211 %d) already awake\n",
2260 clear_bit(mq
, &priv
->transport_queue_stop
);
2262 if (!priv
->passive_no_rx
)
2263 ieee80211_wake_queue(priv
->hw
, mq
);
2266 void iwlagn_lift_passive_no_rx(struct iwl_priv
*priv
)
2270 if (!priv
->passive_no_rx
)
2273 for (mq
= 0; mq
< IWLAGN_FIRST_AMPDU_QUEUE
; mq
++) {
2274 if (!test_bit(mq
, &priv
->transport_queue_stop
)) {
2275 IWL_DEBUG_TX_QUEUES(priv
, "Wake queue %d", mq
);
2276 ieee80211_wake_queue(priv
->hw
, mq
);
2278 IWL_DEBUG_TX_QUEUES(priv
, "Don't wake queue %d", mq
);
2282 priv
->passive_no_rx
= false;
2285 void iwl_free_skb(struct iwl_op_mode
*op_mode
, struct sk_buff
*skb
)
2287 struct ieee80211_tx_info
*info
;
2289 info
= IEEE80211_SKB_CB(skb
);
2290 kmem_cache_free(iwl_tx_cmd_pool
, (info
->driver_data
[1]));
2291 dev_kfree_skb_any(skb
);
2294 void iwl_set_hw_rfkill_state(struct iwl_op_mode
*op_mode
, bool state
)
2296 struct iwl_priv
*priv
= IWL_OP_MODE_GET_DVM(op_mode
);
2299 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2301 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2303 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
, state
);
2306 const struct iwl_op_mode_ops iwl_dvm_ops
= {
2307 .start
= iwl_op_mode_dvm_start
,
2308 .stop
= iwl_op_mode_dvm_stop
,
2309 .rx
= iwl_rx_dispatch
,
2310 .queue_full
= iwl_stop_sw_queue
,
2311 .queue_not_full
= iwl_wake_sw_queue
,
2312 .hw_rf_kill
= iwl_set_hw_rfkill_state
,
2313 .free_skb
= iwl_free_skb
,
2314 .nic_error
= iwl_nic_error
,
2315 .cmd_queue_full
= iwl_cmd_queue_full
,
2316 .nic_config
= iwl_nic_config
,
2317 .wimax_active
= iwl_wimax_active
,
2320 /*****************************************************************************
2322 * driver and module entry point
2324 *****************************************************************************/
2326 struct kmem_cache
*iwl_tx_cmd_pool
;
2328 static int __init
iwl_init(void)
2332 pr_info(DRV_DESCRIPTION
", " DRV_VERSION
"\n");
2333 pr_info(DRV_COPYRIGHT
"\n");
2335 iwl_tx_cmd_pool
= kmem_cache_create("iwl_dev_cmd",
2336 sizeof(struct iwl_device_cmd
),
2337 sizeof(void *), 0, NULL
);
2338 if (!iwl_tx_cmd_pool
)
2341 ret
= iwlagn_rate_control_register();
2343 pr_err("Unable to register rate control algorithm: %d\n", ret
);
2344 goto error_rc_register
;
2347 ret
= iwl_pci_register_driver();
2349 goto error_pci_register
;
2353 iwlagn_rate_control_unregister();
2355 kmem_cache_destroy(iwl_tx_cmd_pool
);
2359 static void __exit
iwl_exit(void)
2361 iwl_pci_unregister_driver();
2362 iwlagn_rate_control_unregister();
2363 kmem_cache_destroy(iwl_tx_cmd_pool
);
2366 module_exit(iwl_exit
);
2367 module_init(iwl_init
);