1 /******************************************************************************
3 * Copyright(c) 2003 - 2011 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/firmware.h>
38 #include <linux/etherdevice.h>
39 #include <linux/if_arp.h>
41 #include <net/mac80211.h>
43 #include <asm/div64.h>
45 #include "iwl-eeprom.h"
49 #include "iwl-agn-calib.h"
51 #include "iwl-shared.h"
53 #include "iwl-trans.h"
55 /******************************************************************************
59 ******************************************************************************/
62 * module name, copyright, version, etc.
64 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
66 #ifdef CONFIG_IWLWIFI_DEBUG
72 #define DRV_VERSION IWLWIFI_VERSION VD
75 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
76 MODULE_VERSION(DRV_VERSION
);
77 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
78 MODULE_LICENSE("GPL");
79 MODULE_ALIAS("iwlagn");
81 void iwl_update_chain_flags(struct iwl_priv
*priv
)
83 struct iwl_rxon_context
*ctx
;
85 for_each_context(priv
, ctx
) {
86 iwlagn_set_rxon_chain(priv
, ctx
);
87 if (ctx
->active
.rx_chain
!= ctx
->staging
.rx_chain
)
88 iwlagn_commit_rxon(priv
, ctx
);
92 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
93 static void iwl_set_beacon_tim(struct iwl_priv
*priv
,
94 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
,
95 u8
*beacon
, u32 frame_size
)
98 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)beacon
;
101 * The index is relative to frame start but we start looking at the
102 * variable-length part of the beacon.
104 tim_idx
= mgmt
->u
.beacon
.variable
- beacon
;
106 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
107 while ((tim_idx
< (frame_size
- 2)) &&
108 (beacon
[tim_idx
] != WLAN_EID_TIM
))
109 tim_idx
+= beacon
[tim_idx
+1] + 2;
111 /* If TIM field was found, set variables */
112 if ((tim_idx
< (frame_size
- 1)) && (beacon
[tim_idx
] == WLAN_EID_TIM
)) {
113 tx_beacon_cmd
->tim_idx
= cpu_to_le16(tim_idx
);
114 tx_beacon_cmd
->tim_size
= beacon
[tim_idx
+1];
116 IWL_WARN(priv
, "Unable to find TIM Element in beacon\n");
119 int iwlagn_send_beacon_cmd(struct iwl_priv
*priv
)
121 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
;
122 struct iwl_host_cmd cmd
= {
123 .id
= REPLY_TX_BEACON
,
126 struct ieee80211_tx_info
*info
;
132 * We have to set up the TX command, the TX Beacon command, and the
136 lockdep_assert_held(&priv
->shrd
->mutex
);
138 if (!priv
->beacon_ctx
) {
139 IWL_ERR(priv
, "trying to build beacon w/o beacon context!\n");
143 if (WARN_ON(!priv
->beacon_skb
))
146 /* Allocate beacon command */
147 if (!priv
->beacon_cmd
)
148 priv
->beacon_cmd
= kzalloc(sizeof(*tx_beacon_cmd
), GFP_KERNEL
);
149 tx_beacon_cmd
= priv
->beacon_cmd
;
153 frame_size
= priv
->beacon_skb
->len
;
155 /* Set up TX command fields */
156 tx_beacon_cmd
->tx
.len
= cpu_to_le16((u16
)frame_size
);
157 tx_beacon_cmd
->tx
.sta_id
= priv
->beacon_ctx
->bcast_sta_id
;
158 tx_beacon_cmd
->tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
159 tx_beacon_cmd
->tx
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
|
160 TX_CMD_FLG_TSF_MSK
| TX_CMD_FLG_STA_RATE_MSK
;
162 /* Set up TX beacon command fields */
163 iwl_set_beacon_tim(priv
, tx_beacon_cmd
, priv
->beacon_skb
->data
,
166 /* Set up packet rate and flags */
167 info
= IEEE80211_SKB_CB(priv
->beacon_skb
);
170 * Let's set up the rate at least somewhat correctly;
171 * it will currently not actually be used by the uCode,
172 * it uses the broadcast station's rate instead.
174 if (info
->control
.rates
[0].idx
< 0 ||
175 info
->control
.rates
[0].flags
& IEEE80211_TX_RC_MCS
)
178 rate
= info
->control
.rates
[0].idx
;
180 priv
->mgmt_tx_ant
= iwl_toggle_tx_ant(priv
, priv
->mgmt_tx_ant
,
181 hw_params(priv
).valid_tx_ant
);
182 rate_flags
= iwl_ant_idx_to_flags(priv
->mgmt_tx_ant
);
184 /* In mac80211, rates for 5 GHz start at 0 */
185 if (info
->band
== IEEE80211_BAND_5GHZ
)
186 rate
+= IWL_FIRST_OFDM_RATE
;
187 else if (rate
>= IWL_FIRST_CCK_RATE
&& rate
<= IWL_LAST_CCK_RATE
)
188 rate_flags
|= RATE_MCS_CCK_MSK
;
190 tx_beacon_cmd
->tx
.rate_n_flags
=
191 iwl_hw_set_rate_n_flags(rate
, rate_flags
);
194 cmd
.len
[0] = sizeof(*tx_beacon_cmd
);
195 cmd
.data
[0] = tx_beacon_cmd
;
196 cmd
.dataflags
[0] = IWL_HCMD_DFL_NOCOPY
;
197 cmd
.len
[1] = frame_size
;
198 cmd
.data
[1] = priv
->beacon_skb
->data
;
199 cmd
.dataflags
[1] = IWL_HCMD_DFL_NOCOPY
;
201 return iwl_trans_send_cmd(trans(priv
), &cmd
);
204 static void iwl_bg_beacon_update(struct work_struct
*work
)
206 struct iwl_priv
*priv
=
207 container_of(work
, struct iwl_priv
, beacon_update
);
208 struct sk_buff
*beacon
;
210 mutex_lock(&priv
->shrd
->mutex
);
211 if (!priv
->beacon_ctx
) {
212 IWL_ERR(priv
, "updating beacon w/o beacon context!\n");
216 if (priv
->beacon_ctx
->vif
->type
!= NL80211_IFTYPE_AP
) {
218 * The ucode will send beacon notifications even in
219 * IBSS mode, but we don't want to process them. But
220 * we need to defer the type check to here due to
221 * requiring locking around the beacon_ctx access.
226 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
227 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->beacon_ctx
->vif
);
229 IWL_ERR(priv
, "update beacon failed -- keeping old\n");
233 /* new beacon skb is allocated every time; dispose previous.*/
234 dev_kfree_skb(priv
->beacon_skb
);
236 priv
->beacon_skb
= beacon
;
238 iwlagn_send_beacon_cmd(priv
);
240 mutex_unlock(&priv
->shrd
->mutex
);
243 static void iwl_bg_bt_runtime_config(struct work_struct
*work
)
245 struct iwl_priv
*priv
=
246 container_of(work
, struct iwl_priv
, bt_runtime_config
);
248 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
251 /* dont send host command if rf-kill is on */
252 if (!iwl_is_ready_rf(priv
->shrd
))
254 iwlagn_send_advance_bt_config(priv
);
257 static void iwl_bg_bt_full_concurrency(struct work_struct
*work
)
259 struct iwl_priv
*priv
=
260 container_of(work
, struct iwl_priv
, bt_full_concurrency
);
261 struct iwl_rxon_context
*ctx
;
263 mutex_lock(&priv
->shrd
->mutex
);
265 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
268 /* dont send host command if rf-kill is on */
269 if (!iwl_is_ready_rf(priv
->shrd
))
272 IWL_DEBUG_INFO(priv
, "BT coex in %s mode\n",
273 priv
->bt_full_concurrent
?
274 "full concurrency" : "3-wire");
277 * LQ & RXON updated cmds must be sent before BT Config cmd
278 * to avoid 3-wire collisions
280 for_each_context(priv
, ctx
) {
281 iwlagn_set_rxon_chain(priv
, ctx
);
282 iwlagn_commit_rxon(priv
, ctx
);
285 iwlagn_send_advance_bt_config(priv
);
287 mutex_unlock(&priv
->shrd
->mutex
);
291 * iwl_bg_statistics_periodic - Timer callback to queue statistics
293 * This callback is provided in order to send a statistics request.
295 * This timer function is continually reset to execute within
296 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
297 * was received. We need to ensure we receive the statistics in order
298 * to update the temperature used for calibrating the TXPOWER.
300 static void iwl_bg_statistics_periodic(unsigned long data
)
302 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
304 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
307 /* dont send host command if rf-kill is on */
308 if (!iwl_is_ready_rf(priv
->shrd
))
311 iwl_send_statistics_request(priv
, CMD_ASYNC
, false);
315 static void iwl_print_cont_event_trace(struct iwl_priv
*priv
, u32 base
,
316 u32 start_idx
, u32 num_events
,
320 u32 ptr
; /* SRAM byte address of log data */
321 u32 ev
, time
, data
; /* event log data */
322 unsigned long reg_flags
;
325 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 2 * sizeof(u32
));
327 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 3 * sizeof(u32
));
329 /* Make sure device is powered up for SRAM reads */
330 spin_lock_irqsave(&bus(priv
)->reg_lock
, reg_flags
);
331 if (iwl_grab_nic_access(bus(priv
))) {
332 spin_unlock_irqrestore(&bus(priv
)->reg_lock
, reg_flags
);
336 /* Set starting address; reads will auto-increment */
337 iwl_write32(bus(priv
), HBUS_TARG_MEM_RADDR
, ptr
);
341 * "time" is actually "data" for mode 0 (no timestamp).
342 * place event id # at far right for easier visual parsing.
344 for (i
= 0; i
< num_events
; i
++) {
345 ev
= iwl_read32(bus(priv
), HBUS_TARG_MEM_RDAT
);
346 time
= iwl_read32(bus(priv
), HBUS_TARG_MEM_RDAT
);
348 trace_iwlwifi_dev_ucode_cont_event(priv
,
351 data
= iwl_read32(bus(priv
), HBUS_TARG_MEM_RDAT
);
352 trace_iwlwifi_dev_ucode_cont_event(priv
,
356 /* Allow device to power down */
357 iwl_release_nic_access(bus(priv
));
358 spin_unlock_irqrestore(&bus(priv
)->reg_lock
, reg_flags
);
361 static void iwl_continuous_event_trace(struct iwl_priv
*priv
)
363 u32 capacity
; /* event log capacity in # entries */
364 u32 base
; /* SRAM byte address of event log header */
365 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
366 u32 num_wraps
; /* # times uCode wrapped to top of log */
367 u32 next_entry
; /* index of next entry to be written by uCode */
369 base
= priv
->device_pointers
.error_event_table
;
370 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
371 capacity
= iwl_read_targ_mem(bus(priv
), base
);
372 num_wraps
= iwl_read_targ_mem(bus(priv
),
373 base
+ (2 * sizeof(u32
)));
374 mode
= iwl_read_targ_mem(bus(priv
), base
+ (1 * sizeof(u32
)));
375 next_entry
= iwl_read_targ_mem(bus(priv
),
376 base
+ (3 * sizeof(u32
)));
380 if (num_wraps
== priv
->event_log
.num_wraps
) {
381 iwl_print_cont_event_trace(priv
,
382 base
, priv
->event_log
.next_entry
,
383 next_entry
- priv
->event_log
.next_entry
,
385 priv
->event_log
.non_wraps_count
++;
387 if ((num_wraps
- priv
->event_log
.num_wraps
) > 1)
388 priv
->event_log
.wraps_more_count
++;
390 priv
->event_log
.wraps_once_count
++;
391 trace_iwlwifi_dev_ucode_wrap_event(priv
,
392 num_wraps
- priv
->event_log
.num_wraps
,
393 next_entry
, priv
->event_log
.next_entry
);
394 if (next_entry
< priv
->event_log
.next_entry
) {
395 iwl_print_cont_event_trace(priv
, base
,
396 priv
->event_log
.next_entry
,
397 capacity
- priv
->event_log
.next_entry
,
400 iwl_print_cont_event_trace(priv
, base
, 0,
403 iwl_print_cont_event_trace(priv
, base
,
404 next_entry
, capacity
- next_entry
,
407 iwl_print_cont_event_trace(priv
, base
, 0,
411 priv
->event_log
.num_wraps
= num_wraps
;
412 priv
->event_log
.next_entry
= next_entry
;
416 * iwl_bg_ucode_trace - Timer callback to log ucode event
418 * The timer is continually set to execute every
419 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
420 * this function is to perform continuous uCode event logging operation
423 static void iwl_bg_ucode_trace(unsigned long data
)
425 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
427 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
430 if (priv
->event_log
.ucode_trace
) {
431 iwl_continuous_event_trace(priv
);
432 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
433 mod_timer(&priv
->ucode_trace
,
434 jiffies
+ msecs_to_jiffies(UCODE_TRACE_PERIOD
));
438 static void iwl_bg_tx_flush(struct work_struct
*work
)
440 struct iwl_priv
*priv
=
441 container_of(work
, struct iwl_priv
, tx_flush
);
443 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
446 /* do nothing if rf-kill is on */
447 if (!iwl_is_ready_rf(priv
->shrd
))
450 IWL_DEBUG_INFO(priv
, "device request: flush all tx frames\n");
451 iwlagn_dev_txfifo_flush(priv
, IWL_DROP_ALL
);
454 static void iwl_init_context(struct iwl_priv
*priv
, u32 ucode_flags
)
459 * The default context is always valid,
460 * the PAN context depends on uCode.
462 priv
->shrd
->valid_contexts
= BIT(IWL_RXON_CTX_BSS
);
463 if (ucode_flags
& IWL_UCODE_TLV_FLAGS_PAN
)
464 priv
->shrd
->valid_contexts
|= BIT(IWL_RXON_CTX_PAN
);
466 for (i
= 0; i
< NUM_IWL_RXON_CTX
; i
++)
467 priv
->contexts
[i
].ctxid
= i
;
469 priv
->contexts
[IWL_RXON_CTX_BSS
].always_active
= true;
470 priv
->contexts
[IWL_RXON_CTX_BSS
].is_active
= true;
471 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_cmd
= REPLY_RXON
;
472 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_timing_cmd
= REPLY_RXON_TIMING
;
473 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_assoc_cmd
= REPLY_RXON_ASSOC
;
474 priv
->contexts
[IWL_RXON_CTX_BSS
].qos_cmd
= REPLY_QOS_PARAM
;
475 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_sta_id
= IWL_AP_ID
;
476 priv
->contexts
[IWL_RXON_CTX_BSS
].wep_key_cmd
= REPLY_WEPKEY
;
477 priv
->contexts
[IWL_RXON_CTX_BSS
].exclusive_interface_modes
=
478 BIT(NL80211_IFTYPE_ADHOC
);
479 priv
->contexts
[IWL_RXON_CTX_BSS
].interface_modes
=
480 BIT(NL80211_IFTYPE_STATION
);
481 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_devtype
= RXON_DEV_TYPE_AP
;
482 priv
->contexts
[IWL_RXON_CTX_BSS
].ibss_devtype
= RXON_DEV_TYPE_IBSS
;
483 priv
->contexts
[IWL_RXON_CTX_BSS
].station_devtype
= RXON_DEV_TYPE_ESS
;
484 priv
->contexts
[IWL_RXON_CTX_BSS
].unused_devtype
= RXON_DEV_TYPE_ESS
;
486 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_cmd
= REPLY_WIPAN_RXON
;
487 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_timing_cmd
=
488 REPLY_WIPAN_RXON_TIMING
;
489 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_assoc_cmd
=
490 REPLY_WIPAN_RXON_ASSOC
;
491 priv
->contexts
[IWL_RXON_CTX_PAN
].qos_cmd
= REPLY_WIPAN_QOS_PARAM
;
492 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_sta_id
= IWL_AP_ID_PAN
;
493 priv
->contexts
[IWL_RXON_CTX_PAN
].wep_key_cmd
= REPLY_WIPAN_WEPKEY
;
494 priv
->contexts
[IWL_RXON_CTX_PAN
].bcast_sta_id
= IWLAGN_PAN_BCAST_ID
;
495 priv
->contexts
[IWL_RXON_CTX_PAN
].station_flags
= STA_FLG_PAN_STATION
;
496 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
=
497 BIT(NL80211_IFTYPE_STATION
) | BIT(NL80211_IFTYPE_AP
);
499 if (ucode_flags
& IWL_UCODE_TLV_FLAGS_P2P
)
500 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
|=
501 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
502 BIT(NL80211_IFTYPE_P2P_GO
);
504 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_devtype
= RXON_DEV_TYPE_CP
;
505 priv
->contexts
[IWL_RXON_CTX_PAN
].station_devtype
= RXON_DEV_TYPE_2STA
;
506 priv
->contexts
[IWL_RXON_CTX_PAN
].unused_devtype
= RXON_DEV_TYPE_P2P
;
508 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
511 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
);
513 #define UCODE_EXPERIMENTAL_INDEX 100
514 #define UCODE_EXPERIMENTAL_TAG "exp"
516 static int __must_check
iwl_request_firmware(struct iwl_priv
*priv
, bool first
)
518 const char *name_pre
= priv
->cfg
->fw_name_pre
;
522 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
523 priv
->fw_index
= UCODE_EXPERIMENTAL_INDEX
;
524 strcpy(tag
, UCODE_EXPERIMENTAL_TAG
);
525 } else if (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
) {
527 priv
->fw_index
= priv
->cfg
->ucode_api_max
;
528 sprintf(tag
, "%d", priv
->fw_index
);
531 sprintf(tag
, "%d", priv
->fw_index
);
534 if (priv
->fw_index
< priv
->cfg
->ucode_api_min
) {
535 IWL_ERR(priv
, "no suitable firmware found!\n");
539 sprintf(priv
->firmware_name
, "%s%s%s", name_pre
, tag
, ".ucode");
541 IWL_DEBUG_INFO(priv
, "attempting to load firmware %s'%s'\n",
542 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
543 ? "EXPERIMENTAL " : "",
544 priv
->firmware_name
);
546 return request_firmware_nowait(THIS_MODULE
, 1, priv
->firmware_name
,
548 GFP_KERNEL
, priv
, iwl_ucode_callback
);
551 struct iwlagn_firmware_pieces
{
552 const void *inst
, *data
, *init
, *init_data
, *wowlan_inst
, *wowlan_data
;
553 size_t inst_size
, data_size
, init_size
, init_data_size
,
554 wowlan_inst_size
, wowlan_data_size
;
558 u32 init_evtlog_ptr
, init_evtlog_size
, init_errlog_ptr
;
559 u32 inst_evtlog_ptr
, inst_evtlog_size
, inst_errlog_ptr
;
562 static int iwlagn_load_legacy_firmware(struct iwl_priv
*priv
,
563 const struct firmware
*ucode_raw
,
564 struct iwlagn_firmware_pieces
*pieces
)
566 struct iwl_ucode_header
*ucode
= (void *)ucode_raw
->data
;
567 u32 api_ver
, hdr_size
;
570 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
571 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
576 if (ucode_raw
->size
< hdr_size
) {
577 IWL_ERR(priv
, "File size too small!\n");
580 pieces
->build
= le32_to_cpu(ucode
->u
.v2
.build
);
581 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v2
.inst_size
);
582 pieces
->data_size
= le32_to_cpu(ucode
->u
.v2
.data_size
);
583 pieces
->init_size
= le32_to_cpu(ucode
->u
.v2
.init_size
);
584 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v2
.init_data_size
);
585 src
= ucode
->u
.v2
.data
;
591 if (ucode_raw
->size
< hdr_size
) {
592 IWL_ERR(priv
, "File size too small!\n");
596 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v1
.inst_size
);
597 pieces
->data_size
= le32_to_cpu(ucode
->u
.v1
.data_size
);
598 pieces
->init_size
= le32_to_cpu(ucode
->u
.v1
.init_size
);
599 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v1
.init_data_size
);
600 src
= ucode
->u
.v1
.data
;
604 /* Verify size of file vs. image size info in file's header */
605 if (ucode_raw
->size
!= hdr_size
+ pieces
->inst_size
+
606 pieces
->data_size
+ pieces
->init_size
+
607 pieces
->init_data_size
) {
610 "uCode file size %d does not match expected size\n",
611 (int)ucode_raw
->size
);
616 src
+= pieces
->inst_size
;
618 src
+= pieces
->data_size
;
620 src
+= pieces
->init_size
;
621 pieces
->init_data
= src
;
622 src
+= pieces
->init_data_size
;
627 static int iwlagn_load_firmware(struct iwl_priv
*priv
,
628 const struct firmware
*ucode_raw
,
629 struct iwlagn_firmware_pieces
*pieces
,
630 struct iwlagn_ucode_capabilities
*capa
)
632 struct iwl_tlv_ucode_header
*ucode
= (void *)ucode_raw
->data
;
633 struct iwl_ucode_tlv
*tlv
;
634 size_t len
= ucode_raw
->size
;
636 int wanted_alternative
= iwlagn_mod_params
.wanted_ucode_alternative
;
640 enum iwl_ucode_tlv_type tlv_type
;
643 if (len
< sizeof(*ucode
)) {
644 IWL_ERR(priv
, "uCode has invalid length: %zd\n", len
);
648 if (ucode
->magic
!= cpu_to_le32(IWL_TLV_UCODE_MAGIC
)) {
649 IWL_ERR(priv
, "invalid uCode magic: 0X%x\n",
650 le32_to_cpu(ucode
->magic
));
655 * Check which alternatives are present, and "downgrade"
656 * when the chosen alternative is not present, warning
657 * the user when that happens. Some files may not have
658 * any alternatives, so don't warn in that case.
660 alternatives
= le64_to_cpu(ucode
->alternatives
);
661 tmp
= wanted_alternative
;
662 if (wanted_alternative
> 63)
663 wanted_alternative
= 63;
664 while (wanted_alternative
&& !(alternatives
& BIT(wanted_alternative
)))
665 wanted_alternative
--;
666 if (wanted_alternative
&& wanted_alternative
!= tmp
)
668 "uCode alternative %d not available, choosing %d\n",
669 tmp
, wanted_alternative
);
671 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
672 pieces
->build
= le32_to_cpu(ucode
->build
);
675 len
-= sizeof(*ucode
);
677 while (len
>= sizeof(*tlv
)) {
683 tlv_len
= le32_to_cpu(tlv
->length
);
684 tlv_type
= le16_to_cpu(tlv
->type
);
685 tlv_alt
= le16_to_cpu(tlv
->alternative
);
686 tlv_data
= tlv
->data
;
689 IWL_ERR(priv
, "invalid TLV len: %zd/%u\n",
693 len
-= ALIGN(tlv_len
, 4);
694 data
+= sizeof(*tlv
) + ALIGN(tlv_len
, 4);
697 * Alternative 0 is always valid.
699 * Skip alternative TLVs that are not selected.
701 if (tlv_alt
!= 0 && tlv_alt
!= wanted_alternative
)
705 case IWL_UCODE_TLV_INST
:
706 pieces
->inst
= tlv_data
;
707 pieces
->inst_size
= tlv_len
;
709 case IWL_UCODE_TLV_DATA
:
710 pieces
->data
= tlv_data
;
711 pieces
->data_size
= tlv_len
;
713 case IWL_UCODE_TLV_INIT
:
714 pieces
->init
= tlv_data
;
715 pieces
->init_size
= tlv_len
;
717 case IWL_UCODE_TLV_INIT_DATA
:
718 pieces
->init_data
= tlv_data
;
719 pieces
->init_data_size
= tlv_len
;
721 case IWL_UCODE_TLV_BOOT
:
722 IWL_ERR(priv
, "Found unexpected BOOT ucode\n");
724 case IWL_UCODE_TLV_PROBE_MAX_LEN
:
725 if (tlv_len
!= sizeof(u32
))
726 goto invalid_tlv_len
;
727 capa
->max_probe_length
=
728 le32_to_cpup((__le32
*)tlv_data
);
730 case IWL_UCODE_TLV_PAN
:
732 goto invalid_tlv_len
;
733 capa
->flags
|= IWL_UCODE_TLV_FLAGS_PAN
;
735 case IWL_UCODE_TLV_FLAGS
:
736 /* must be at least one u32 */
737 if (tlv_len
< sizeof(u32
))
738 goto invalid_tlv_len
;
739 /* and a proper number of u32s */
740 if (tlv_len
% sizeof(u32
))
741 goto invalid_tlv_len
;
743 * This driver only reads the first u32 as
744 * right now no more features are defined,
745 * if that changes then either the driver
746 * will not work with the new firmware, or
747 * it'll not take advantage of new features.
749 capa
->flags
= le32_to_cpup((__le32
*)tlv_data
);
751 case IWL_UCODE_TLV_INIT_EVTLOG_PTR
:
752 if (tlv_len
!= sizeof(u32
))
753 goto invalid_tlv_len
;
754 pieces
->init_evtlog_ptr
=
755 le32_to_cpup((__le32
*)tlv_data
);
757 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE
:
758 if (tlv_len
!= sizeof(u32
))
759 goto invalid_tlv_len
;
760 pieces
->init_evtlog_size
=
761 le32_to_cpup((__le32
*)tlv_data
);
763 case IWL_UCODE_TLV_INIT_ERRLOG_PTR
:
764 if (tlv_len
!= sizeof(u32
))
765 goto invalid_tlv_len
;
766 pieces
->init_errlog_ptr
=
767 le32_to_cpup((__le32
*)tlv_data
);
769 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR
:
770 if (tlv_len
!= sizeof(u32
))
771 goto invalid_tlv_len
;
772 pieces
->inst_evtlog_ptr
=
773 le32_to_cpup((__le32
*)tlv_data
);
775 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE
:
776 if (tlv_len
!= sizeof(u32
))
777 goto invalid_tlv_len
;
778 pieces
->inst_evtlog_size
=
779 le32_to_cpup((__le32
*)tlv_data
);
781 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR
:
782 if (tlv_len
!= sizeof(u32
))
783 goto invalid_tlv_len
;
784 pieces
->inst_errlog_ptr
=
785 le32_to_cpup((__le32
*)tlv_data
);
787 case IWL_UCODE_TLV_ENHANCE_SENS_TBL
:
789 goto invalid_tlv_len
;
790 priv
->enhance_sensitivity_table
= true;
792 case IWL_UCODE_TLV_WOWLAN_INST
:
793 pieces
->wowlan_inst
= tlv_data
;
794 pieces
->wowlan_inst_size
= tlv_len
;
796 case IWL_UCODE_TLV_WOWLAN_DATA
:
797 pieces
->wowlan_data
= tlv_data
;
798 pieces
->wowlan_data_size
= tlv_len
;
800 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE
:
801 if (tlv_len
!= sizeof(u32
))
802 goto invalid_tlv_len
;
803 capa
->standard_phy_calibration_size
=
804 le32_to_cpup((__le32
*)tlv_data
);
807 IWL_DEBUG_INFO(priv
, "unknown TLV: %d\n", tlv_type
);
813 IWL_ERR(priv
, "invalid TLV after parsing: %zd\n", len
);
814 iwl_print_hex_dump(priv
, IWL_DL_FW
, (u8
*)data
, len
);
821 IWL_ERR(priv
, "TLV %d has invalid size: %u\n", tlv_type
, tlv_len
);
822 iwl_print_hex_dump(priv
, IWL_DL_FW
, tlv_data
, tlv_len
);
828 * iwl_ucode_callback - callback when firmware was loaded
830 * If loaded successfully, copies the firmware into buffers
831 * for the card to fetch (via DMA).
833 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
)
835 struct iwl_priv
*priv
= context
;
836 struct iwl_ucode_header
*ucode
;
838 struct iwlagn_firmware_pieces pieces
;
839 const unsigned int api_max
= priv
->cfg
->ucode_api_max
;
840 unsigned int api_ok
= priv
->cfg
->ucode_api_ok
;
841 const unsigned int api_min
= priv
->cfg
->ucode_api_min
;
845 struct iwlagn_ucode_capabilities ucode_capa
= {
846 .max_probe_length
= 200,
847 .standard_phy_calibration_size
=
848 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE
,
854 memset(&pieces
, 0, sizeof(pieces
));
857 if (priv
->fw_index
<= api_ok
)
859 "request for firmware file '%s' failed.\n",
860 priv
->firmware_name
);
864 IWL_DEBUG_INFO(priv
, "Loaded firmware file '%s' (%zd bytes).\n",
865 priv
->firmware_name
, ucode_raw
->size
);
867 /* Make sure that we got at least the API version number */
868 if (ucode_raw
->size
< 4) {
869 IWL_ERR(priv
, "File size way too small!\n");
873 /* Data from ucode file: header followed by uCode images */
874 ucode
= (struct iwl_ucode_header
*)ucode_raw
->data
;
877 err
= iwlagn_load_legacy_firmware(priv
, ucode_raw
, &pieces
);
879 err
= iwlagn_load_firmware(priv
, ucode_raw
, &pieces
,
885 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
886 build
= pieces
.build
;
889 * api_ver should match the api version forming part of the
890 * firmware filename ... but we don't check for that and only rely
891 * on the API version read from firmware header from here on forward
893 /* no api version check required for experimental uCode */
894 if (priv
->fw_index
!= UCODE_EXPERIMENTAL_INDEX
) {
895 if (api_ver
< api_min
|| api_ver
> api_max
) {
897 "Driver unable to support your firmware API. "
898 "Driver supports v%u, firmware is v%u.\n",
903 if (api_ver
< api_ok
) {
904 if (api_ok
!= api_max
)
905 IWL_ERR(priv
, "Firmware has old API version, "
906 "expected v%u through v%u, got v%u.\n",
907 api_ok
, api_max
, api_ver
);
909 IWL_ERR(priv
, "Firmware has old API version, "
910 "expected v%u, got v%u.\n",
912 IWL_ERR(priv
, "New firmware can be obtained from "
913 "http://www.intellinuxwireless.org/.\n");
918 sprintf(buildstr
, " build %u%s", build
,
919 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
924 IWL_INFO(priv
, "loaded firmware version %u.%u.%u.%u%s\n",
925 IWL_UCODE_MAJOR(priv
->ucode_ver
),
926 IWL_UCODE_MINOR(priv
->ucode_ver
),
927 IWL_UCODE_API(priv
->ucode_ver
),
928 IWL_UCODE_SERIAL(priv
->ucode_ver
),
931 snprintf(priv
->hw
->wiphy
->fw_version
,
932 sizeof(priv
->hw
->wiphy
->fw_version
),
934 IWL_UCODE_MAJOR(priv
->ucode_ver
),
935 IWL_UCODE_MINOR(priv
->ucode_ver
),
936 IWL_UCODE_API(priv
->ucode_ver
),
937 IWL_UCODE_SERIAL(priv
->ucode_ver
),
941 * For any of the failures below (before allocating pci memory)
942 * we will try to load a version with a smaller API -- maybe the
943 * user just got a corrupted version of the latest API.
946 IWL_DEBUG_INFO(priv
, "f/w package hdr ucode version raw = 0x%x\n",
948 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime inst size = %Zd\n",
950 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime data size = %Zd\n",
952 IWL_DEBUG_INFO(priv
, "f/w package hdr init inst size = %Zd\n",
954 IWL_DEBUG_INFO(priv
, "f/w package hdr init data size = %Zd\n",
955 pieces
.init_data_size
);
957 /* Verify that uCode images will fit in card's SRAM */
958 if (pieces
.inst_size
> hw_params(priv
).max_inst_size
) {
959 IWL_ERR(priv
, "uCode instr len %Zd too large to fit in\n",
964 if (pieces
.data_size
> hw_params(priv
).max_data_size
) {
965 IWL_ERR(priv
, "uCode data len %Zd too large to fit in\n",
970 if (pieces
.init_size
> hw_params(priv
).max_inst_size
) {
971 IWL_ERR(priv
, "uCode init instr len %Zd too large to fit in\n",
976 if (pieces
.init_data_size
> hw_params(priv
).max_data_size
) {
977 IWL_ERR(priv
, "uCode init data len %Zd too large to fit in\n",
978 pieces
.init_data_size
);
982 /* Allocate ucode buffers for card's bus-master loading ... */
984 /* Runtime instructions and 2 copies of data:
985 * 1) unmodified from disk
986 * 2) backup cache for save/restore during power-downs */
987 if (iwl_alloc_fw_desc(bus(priv
), &trans(priv
)->ucode_rt
.code
,
988 pieces
.inst
, pieces
.inst_size
))
990 if (iwl_alloc_fw_desc(bus(priv
), &trans(priv
)->ucode_rt
.data
,
991 pieces
.data
, pieces
.data_size
))
994 /* Initialization instructions and data */
995 if (pieces
.init_size
&& pieces
.init_data_size
) {
996 if (iwl_alloc_fw_desc(bus(priv
), &trans(priv
)->ucode_init
.code
,
997 pieces
.init
, pieces
.init_size
))
999 if (iwl_alloc_fw_desc(bus(priv
), &trans(priv
)->ucode_init
.data
,
1000 pieces
.init_data
, pieces
.init_data_size
))
1004 /* WoWLAN instructions and data */
1005 if (pieces
.wowlan_inst_size
&& pieces
.wowlan_data_size
) {
1006 if (iwl_alloc_fw_desc(bus(priv
),
1007 &trans(priv
)->ucode_wowlan
.code
,
1009 pieces
.wowlan_inst_size
))
1011 if (iwl_alloc_fw_desc(bus(priv
),
1012 &trans(priv
)->ucode_wowlan
.data
,
1014 pieces
.wowlan_data_size
))
1018 /* Now that we can no longer fail, copy information */
1021 * The (size - 16) / 12 formula is based on the information recorded
1022 * for each event, which is of mode 1 (including timestamp) for all
1023 * new microcodes that include this information.
1025 priv
->init_evtlog_ptr
= pieces
.init_evtlog_ptr
;
1026 if (pieces
.init_evtlog_size
)
1027 priv
->init_evtlog_size
= (pieces
.init_evtlog_size
- 16)/12;
1029 priv
->init_evtlog_size
=
1030 priv
->cfg
->base_params
->max_event_log_size
;
1031 priv
->init_errlog_ptr
= pieces
.init_errlog_ptr
;
1032 priv
->inst_evtlog_ptr
= pieces
.inst_evtlog_ptr
;
1033 if (pieces
.inst_evtlog_size
)
1034 priv
->inst_evtlog_size
= (pieces
.inst_evtlog_size
- 16)/12;
1036 priv
->inst_evtlog_size
=
1037 priv
->cfg
->base_params
->max_event_log_size
;
1038 priv
->inst_errlog_ptr
= pieces
.inst_errlog_ptr
;
1039 #ifndef CONFIG_IWLWIFI_P2P
1040 ucode_capa
.flags
&= ~IWL_UCODE_TLV_FLAGS_PAN
;
1043 priv
->new_scan_threshold_behaviour
=
1044 !!(ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_NEWSCAN
);
1046 if (!(priv
->cfg
->sku
& EEPROM_SKU_CAP_IPAN_ENABLE
))
1047 ucode_capa
.flags
&= ~IWL_UCODE_TLV_FLAGS_PAN
;
1050 * if not PAN, then don't support P2P -- might be a uCode
1051 * packaging bug or due to the eeprom check above
1053 if (!(ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_PAN
))
1054 ucode_capa
.flags
&= ~IWL_UCODE_TLV_FLAGS_P2P
;
1056 if (ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_PAN
) {
1057 priv
->sta_key_max_num
= STA_KEY_MAX_NUM_PAN
;
1058 priv
->shrd
->cmd_queue
= IWL_IPAN_CMD_QUEUE_NUM
;
1060 priv
->sta_key_max_num
= STA_KEY_MAX_NUM
;
1061 priv
->shrd
->cmd_queue
= IWL_DEFAULT_CMD_QUEUE_NUM
;
1064 * figure out the offset of chain noise reset and gain commands
1065 * base on the size of standard phy calibration commands table size
1067 if (ucode_capa
.standard_phy_calibration_size
>
1068 IWL_MAX_PHY_CALIBRATE_TBL_SIZE
)
1069 ucode_capa
.standard_phy_calibration_size
=
1070 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE
;
1072 priv
->phy_calib_chain_noise_reset_cmd
=
1073 ucode_capa
.standard_phy_calibration_size
;
1074 priv
->phy_calib_chain_noise_gain_cmd
=
1075 ucode_capa
.standard_phy_calibration_size
+ 1;
1077 /* initialize all valid contexts */
1078 iwl_init_context(priv
, ucode_capa
.flags
);
1080 /**************************************************
1081 * This is still part of probe() in a sense...
1083 * 9. Setup and register with mac80211 and debugfs
1084 **************************************************/
1085 err
= iwlagn_mac_setup_register(priv
, &ucode_capa
);
1089 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
1091 IWL_ERR(priv
, "failed to create debugfs files. Ignoring error: %d\n", err
);
1093 /* We have our copies now, allow OS release its copies */
1094 release_firmware(ucode_raw
);
1095 complete(&priv
->firmware_loading_complete
);
1099 /* try next, if any */
1100 if (iwl_request_firmware(priv
, false))
1102 release_firmware(ucode_raw
);
1106 IWL_ERR(priv
, "failed to allocate pci memory\n");
1107 iwl_dealloc_ucode(trans(priv
));
1109 complete(&priv
->firmware_loading_complete
);
1110 device_release_driver(bus(priv
)->dev
);
1111 release_firmware(ucode_raw
);
1114 static void iwl_rf_kill_ct_config(struct iwl_priv
*priv
)
1116 struct iwl_ct_kill_config cmd
;
1117 struct iwl_ct_kill_throttling_config adv_cmd
;
1118 unsigned long flags
;
1121 spin_lock_irqsave(&priv
->shrd
->lock
, flags
);
1122 iwl_write32(bus(priv
), CSR_UCODE_DRV_GP1_CLR
,
1123 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
1124 spin_unlock_irqrestore(&priv
->shrd
->lock
, flags
);
1125 priv
->thermal_throttle
.ct_kill_toggle
= false;
1127 if (priv
->cfg
->base_params
->support_ct_kill_exit
) {
1128 adv_cmd
.critical_temperature_enter
=
1129 cpu_to_le32(hw_params(priv
).ct_kill_threshold
);
1130 adv_cmd
.critical_temperature_exit
=
1131 cpu_to_le32(hw_params(priv
).ct_kill_exit_threshold
);
1133 ret
= iwl_trans_send_cmd_pdu(trans(priv
),
1134 REPLY_CT_KILL_CONFIG_CMD
,
1135 CMD_SYNC
, sizeof(adv_cmd
), &adv_cmd
);
1137 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1139 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1140 "succeeded, critical temperature enter is %d,"
1142 hw_params(priv
).ct_kill_threshold
,
1143 hw_params(priv
).ct_kill_exit_threshold
);
1145 cmd
.critical_temperature_R
=
1146 cpu_to_le32(hw_params(priv
).ct_kill_threshold
);
1148 ret
= iwl_trans_send_cmd_pdu(trans(priv
),
1149 REPLY_CT_KILL_CONFIG_CMD
,
1150 CMD_SYNC
, sizeof(cmd
), &cmd
);
1152 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1154 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1156 "critical temperature is %d\n",
1157 hw_params(priv
).ct_kill_threshold
);
1161 static int iwlagn_send_calib_cfg_rt(struct iwl_priv
*priv
, u32 cfg
)
1163 struct iwl_calib_cfg_cmd calib_cfg_cmd
;
1164 struct iwl_host_cmd cmd
= {
1165 .id
= CALIBRATION_CFG_CMD
,
1166 .len
= { sizeof(struct iwl_calib_cfg_cmd
), },
1167 .data
= { &calib_cfg_cmd
, },
1170 memset(&calib_cfg_cmd
, 0, sizeof(calib_cfg_cmd
));
1171 calib_cfg_cmd
.ucd_calib_cfg
.once
.is_enable
= IWL_CALIB_RT_CFG_ALL
;
1172 calib_cfg_cmd
.ucd_calib_cfg
.once
.start
= cpu_to_le32(cfg
);
1174 return iwl_trans_send_cmd(trans(priv
), &cmd
);
1178 static int iwlagn_send_tx_ant_config(struct iwl_priv
*priv
, u8 valid_tx_ant
)
1180 struct iwl_tx_ant_config_cmd tx_ant_cmd
= {
1181 .valid
= cpu_to_le32(valid_tx_ant
),
1184 if (IWL_UCODE_API(priv
->ucode_ver
) > 1) {
1185 IWL_DEBUG_HC(priv
, "select valid tx ant: %u\n", valid_tx_ant
);
1186 return iwl_trans_send_cmd_pdu(trans(priv
),
1187 TX_ANT_CONFIGURATION_CMD
,
1189 sizeof(struct iwl_tx_ant_config_cmd
),
1192 IWL_DEBUG_HC(priv
, "TX_ANT_CONFIGURATION_CMD not supported\n");
1198 * iwl_alive_start - called after REPLY_ALIVE notification received
1199 * from protocol/runtime uCode (initialization uCode's
1200 * Alive gets handled by iwl_init_alive_start()).
1202 int iwl_alive_start(struct iwl_priv
*priv
)
1205 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
1207 /*TODO: this should go to the transport layer */
1208 iwl_reset_ict(trans(priv
));
1210 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
1212 /* After the ALIVE response, we can send host commands to the uCode */
1213 set_bit(STATUS_ALIVE
, &priv
->shrd
->status
);
1215 /* Enable watchdog to monitor the driver tx queues */
1216 iwl_setup_watchdog(priv
);
1218 if (iwl_is_rfkill(priv
->shrd
))
1221 /* download priority table before any calibration request */
1222 if (priv
->cfg
->bt_params
&&
1223 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
1224 /* Configure Bluetooth device coexistence support */
1225 if (priv
->cfg
->bt_params
->bt_sco_disable
)
1226 priv
->bt_enable_pspoll
= false;
1228 priv
->bt_enable_pspoll
= true;
1230 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
1231 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
1232 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
1233 iwlagn_send_advance_bt_config(priv
);
1234 priv
->bt_valid
= IWLAGN_BT_VALID_ENABLE_FLAGS
;
1235 priv
->cur_rssi_ctx
= NULL
;
1237 iwl_send_prio_tbl(trans(priv
));
1239 /* FIXME: w/a to force change uCode BT state machine */
1240 ret
= iwl_send_bt_env(trans(priv
), IWL_BT_COEX_ENV_OPEN
,
1241 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
1244 ret
= iwl_send_bt_env(trans(priv
), IWL_BT_COEX_ENV_CLOSE
,
1245 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
1250 * default is 2-wire BT coexexistence support
1252 iwl_send_bt_config(priv
);
1255 if (hw_params(priv
).calib_rt_cfg
)
1256 iwlagn_send_calib_cfg_rt(priv
,
1257 hw_params(priv
).calib_rt_cfg
);
1259 ieee80211_wake_queues(priv
->hw
);
1261 priv
->active_rate
= IWL_RATES_MASK
;
1263 /* Configure Tx antenna selection based on H/W config */
1264 iwlagn_send_tx_ant_config(priv
, priv
->cfg
->valid_tx_ant
);
1266 if (iwl_is_associated_ctx(ctx
) && !priv
->shrd
->wowlan
) {
1267 struct iwl_rxon_cmd
*active_rxon
=
1268 (struct iwl_rxon_cmd
*)&ctx
->active
;
1269 /* apply any changes in staging */
1270 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
1271 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1273 struct iwl_rxon_context
*tmp
;
1274 /* Initialize our rx_config data */
1275 for_each_context(priv
, tmp
)
1276 iwl_connection_init_rx_config(priv
, tmp
);
1278 iwlagn_set_rxon_chain(priv
, ctx
);
1281 if (!priv
->shrd
->wowlan
) {
1282 /* WoWLAN ucode will not reply in the same way, skip it */
1283 iwl_reset_run_time_calib(priv
);
1286 set_bit(STATUS_READY
, &priv
->shrd
->status
);
1288 /* Configure the adapter for unassociated operation */
1289 ret
= iwlagn_commit_rxon(priv
, ctx
);
1293 /* At this point, the NIC is initialized and operational */
1294 iwl_rf_kill_ct_config(priv
);
1296 IWL_DEBUG_INFO(priv
, "ALIVE processing complete.\n");
1298 return iwl_power_update_mode(priv
, true);
1301 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
);
1303 void __iwl_down(struct iwl_priv
*priv
)
1307 IWL_DEBUG_INFO(priv
, DRV_NAME
" is going down\n");
1309 iwl_scan_cancel_timeout(priv
, 200);
1312 * If active, scanning won't cancel it, so say it expired.
1313 * No race since we hold the mutex here and a new one
1314 * can't come in at this time.
1316 ieee80211_remain_on_channel_expired(priv
->hw
);
1319 test_and_set_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
1321 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
1322 * to prevent rearm timer */
1323 del_timer_sync(&priv
->watchdog
);
1325 iwl_clear_ucode_stations(priv
, NULL
);
1326 iwl_dealloc_bcast_stations(priv
);
1327 iwl_clear_driver_stations(priv
);
1329 /* reset BT coex data */
1330 priv
->bt_status
= 0;
1331 priv
->cur_rssi_ctx
= NULL
;
1332 priv
->bt_is_sco
= 0;
1333 if (priv
->cfg
->bt_params
)
1334 priv
->bt_traffic_load
=
1335 priv
->cfg
->bt_params
->bt_init_traffic_load
;
1337 priv
->bt_traffic_load
= 0;
1338 priv
->bt_full_concurrent
= false;
1339 priv
->bt_ci_compliance
= 0;
1341 /* Wipe out the EXIT_PENDING status bit if we are not actually
1342 * exiting the module */
1344 clear_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
1346 if (priv
->mac80211_registered
)
1347 ieee80211_stop_queues(priv
->hw
);
1349 iwl_trans_stop_device(trans(priv
));
1351 /* Clear out all status bits but a few that are stable across reset */
1352 priv
->shrd
->status
&=
1353 test_bit(STATUS_RF_KILL_HW
, &priv
->shrd
->status
) <<
1355 test_bit(STATUS_GEO_CONFIGURED
, &priv
->shrd
->status
) <<
1356 STATUS_GEO_CONFIGURED
|
1357 test_bit(STATUS_FW_ERROR
, &priv
->shrd
->status
) <<
1359 test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
) <<
1360 STATUS_EXIT_PENDING
;
1362 dev_kfree_skb(priv
->beacon_skb
);
1363 priv
->beacon_skb
= NULL
;
1366 void iwl_down(struct iwl_priv
*priv
)
1368 mutex_lock(&priv
->shrd
->mutex
);
1370 mutex_unlock(&priv
->shrd
->mutex
);
1372 iwl_cancel_deferred_work(priv
);
1375 /*****************************************************************************
1377 * Workqueue callbacks
1379 *****************************************************************************/
1381 static void iwl_bg_run_time_calib_work(struct work_struct
*work
)
1383 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
1384 run_time_calib_work
);
1386 mutex_lock(&priv
->shrd
->mutex
);
1388 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
) ||
1389 test_bit(STATUS_SCANNING
, &priv
->shrd
->status
)) {
1390 mutex_unlock(&priv
->shrd
->mutex
);
1394 if (priv
->start_calib
) {
1395 iwl_chain_noise_calibration(priv
);
1396 iwl_sensitivity_calibration(priv
);
1399 mutex_unlock(&priv
->shrd
->mutex
);
1402 void iwlagn_prepare_restart(struct iwl_priv
*priv
)
1404 struct iwl_rxon_context
*ctx
;
1405 bool bt_full_concurrent
;
1406 u8 bt_ci_compliance
;
1411 lockdep_assert_held(&priv
->shrd
->mutex
);
1413 for_each_context(priv
, ctx
)
1418 * __iwl_down() will clear the BT status variables,
1419 * which is correct, but when we restart we really
1420 * want to keep them so restore them afterwards.
1422 * The restart process will later pick them up and
1423 * re-configure the hw when we reconfigure the BT
1426 bt_full_concurrent
= priv
->bt_full_concurrent
;
1427 bt_ci_compliance
= priv
->bt_ci_compliance
;
1428 bt_load
= priv
->bt_traffic_load
;
1429 bt_status
= priv
->bt_status
;
1430 bt_is_sco
= priv
->bt_is_sco
;
1434 priv
->bt_full_concurrent
= bt_full_concurrent
;
1435 priv
->bt_ci_compliance
= bt_ci_compliance
;
1436 priv
->bt_traffic_load
= bt_load
;
1437 priv
->bt_status
= bt_status
;
1438 priv
->bt_is_sco
= bt_is_sco
;
1441 static void iwl_bg_restart(struct work_struct
*data
)
1443 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
1445 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
1448 if (test_and_clear_bit(STATUS_FW_ERROR
, &priv
->shrd
->status
)) {
1449 mutex_lock(&priv
->shrd
->mutex
);
1450 iwlagn_prepare_restart(priv
);
1451 mutex_unlock(&priv
->shrd
->mutex
);
1452 iwl_cancel_deferred_work(priv
);
1453 ieee80211_restart_hw(priv
->hw
);
1462 void iwlagn_disable_roc(struct iwl_priv
*priv
)
1464 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
1466 lockdep_assert_held(&priv
->shrd
->mutex
);
1468 if (!priv
->hw_roc_setup
)
1471 ctx
->staging
.dev_type
= RXON_DEV_TYPE_P2P
;
1472 ctx
->staging
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1474 priv
->hw_roc_channel
= NULL
;
1476 memset(ctx
->staging
.node_addr
, 0, ETH_ALEN
);
1478 iwlagn_commit_rxon(priv
, ctx
);
1480 ctx
->is_active
= false;
1481 priv
->hw_roc_setup
= false;
1484 static void iwlagn_disable_roc_work(struct work_struct
*work
)
1486 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
1487 hw_roc_disable_work
.work
);
1489 mutex_lock(&priv
->shrd
->mutex
);
1490 iwlagn_disable_roc(priv
);
1491 mutex_unlock(&priv
->shrd
->mutex
);
1494 /*****************************************************************************
1496 * driver setup and teardown
1498 *****************************************************************************/
1500 static void iwl_setup_deferred_work(struct iwl_priv
*priv
)
1502 priv
->shrd
->workqueue
= create_singlethread_workqueue(DRV_NAME
);
1504 init_waitqueue_head(&priv
->shrd
->wait_command_queue
);
1506 INIT_WORK(&priv
->restart
, iwl_bg_restart
);
1507 INIT_WORK(&priv
->beacon_update
, iwl_bg_beacon_update
);
1508 INIT_WORK(&priv
->run_time_calib_work
, iwl_bg_run_time_calib_work
);
1509 INIT_WORK(&priv
->tx_flush
, iwl_bg_tx_flush
);
1510 INIT_WORK(&priv
->bt_full_concurrency
, iwl_bg_bt_full_concurrency
);
1511 INIT_WORK(&priv
->bt_runtime_config
, iwl_bg_bt_runtime_config
);
1512 INIT_DELAYED_WORK(&priv
->hw_roc_disable_work
,
1513 iwlagn_disable_roc_work
);
1515 iwl_setup_scan_deferred_work(priv
);
1517 if (priv
->cfg
->lib
->bt_setup_deferred_work
)
1518 priv
->cfg
->lib
->bt_setup_deferred_work(priv
);
1520 init_timer(&priv
->statistics_periodic
);
1521 priv
->statistics_periodic
.data
= (unsigned long)priv
;
1522 priv
->statistics_periodic
.function
= iwl_bg_statistics_periodic
;
1524 init_timer(&priv
->ucode_trace
);
1525 priv
->ucode_trace
.data
= (unsigned long)priv
;
1526 priv
->ucode_trace
.function
= iwl_bg_ucode_trace
;
1528 init_timer(&priv
->watchdog
);
1529 priv
->watchdog
.data
= (unsigned long)priv
;
1530 priv
->watchdog
.function
= iwl_bg_watchdog
;
1533 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
)
1535 if (priv
->cfg
->lib
->cancel_deferred_work
)
1536 priv
->cfg
->lib
->cancel_deferred_work(priv
);
1538 cancel_work_sync(&priv
->run_time_calib_work
);
1539 cancel_work_sync(&priv
->beacon_update
);
1541 iwl_cancel_scan_deferred_work(priv
);
1543 cancel_work_sync(&priv
->bt_full_concurrency
);
1544 cancel_work_sync(&priv
->bt_runtime_config
);
1545 cancel_delayed_work_sync(&priv
->hw_roc_disable_work
);
1547 del_timer_sync(&priv
->statistics_periodic
);
1548 del_timer_sync(&priv
->ucode_trace
);
1551 static void iwl_init_hw_rates(struct iwl_priv
*priv
,
1552 struct ieee80211_rate
*rates
)
1556 for (i
= 0; i
< IWL_RATE_COUNT_LEGACY
; i
++) {
1557 rates
[i
].bitrate
= iwl_rates
[i
].ieee
* 5;
1558 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
1559 rates
[i
].hw_value_short
= i
;
1561 if ((i
>= IWL_FIRST_CCK_RATE
) && (i
<= IWL_LAST_CCK_RATE
)) {
1563 * If CCK != 1M then set short preamble rate flag.
1566 (iwl_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
1567 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
1572 static int iwl_init_drv(struct iwl_priv
*priv
)
1576 spin_lock_init(&priv
->shrd
->sta_lock
);
1578 mutex_init(&priv
->shrd
->mutex
);
1580 INIT_LIST_HEAD(&priv
->calib_results
);
1582 priv
->ieee_channels
= NULL
;
1583 priv
->ieee_rates
= NULL
;
1584 priv
->band
= IEEE80211_BAND_2GHZ
;
1586 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
1587 priv
->current_ht_config
.smps
= IEEE80211_SMPS_STATIC
;
1588 priv
->missed_beacon_threshold
= IWL_MISSED_BEACON_THRESHOLD_DEF
;
1589 priv
->agg_tids_count
= 0;
1591 /* initialize force reset */
1592 priv
->force_reset
[IWL_RF_RESET
].reset_duration
=
1593 IWL_DELAY_NEXT_FORCE_RF_RESET
;
1594 priv
->force_reset
[IWL_FW_RESET
].reset_duration
=
1595 IWL_DELAY_NEXT_FORCE_FW_RELOAD
;
1597 priv
->rx_statistics_jiffies
= jiffies
;
1599 /* Choose which receivers/antennas to use */
1600 iwlagn_set_rxon_chain(priv
, &priv
->contexts
[IWL_RXON_CTX_BSS
]);
1602 iwl_init_scan_params(priv
);
1605 if (priv
->cfg
->bt_params
&&
1606 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
1607 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
1608 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
1609 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
1610 priv
->bt_on_thresh
= BT_ON_THRESHOLD_DEF
;
1611 priv
->bt_duration
= BT_DURATION_LIMIT_DEF
;
1612 priv
->dynamic_frag_thresh
= BT_FRAG_THRESHOLD_DEF
;
1615 ret
= iwl_init_channel_map(priv
);
1617 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
1621 ret
= iwl_init_geos(priv
);
1623 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
1624 goto err_free_channel_map
;
1626 iwl_init_hw_rates(priv
, priv
->ieee_rates
);
1630 err_free_channel_map
:
1631 iwl_free_channel_map(priv
);
1636 static void iwl_uninit_drv(struct iwl_priv
*priv
)
1638 iwl_calib_free_results(priv
);
1639 iwl_free_geos(priv
);
1640 iwl_free_channel_map(priv
);
1641 if (priv
->tx_cmd_pool
)
1642 kmem_cache_destroy(priv
->tx_cmd_pool
);
1643 kfree(priv
->scan_cmd
);
1644 kfree(priv
->beacon_cmd
);
1645 kfree(rcu_dereference_raw(priv
->noa_data
));
1646 #ifdef CONFIG_IWLWIFI_DEBUGFS
1647 kfree(priv
->wowlan_sram
);
1653 static u32
iwl_hw_detect(struct iwl_priv
*priv
)
1655 return iwl_read32(bus(priv
), CSR_HW_REV
);
1658 /* Size of one Rx buffer in host DRAM */
1659 #define IWL_RX_BUF_SIZE_4K (4 * 1024)
1660 #define IWL_RX_BUF_SIZE_8K (8 * 1024)
1662 static int iwl_set_hw_params(struct iwl_priv
*priv
)
1664 if (iwlagn_mod_params
.amsdu_size_8K
)
1665 hw_params(priv
).rx_page_order
=
1666 get_order(IWL_RX_BUF_SIZE_8K
);
1668 hw_params(priv
).rx_page_order
=
1669 get_order(IWL_RX_BUF_SIZE_4K
);
1671 if (iwlagn_mod_params
.disable_11n
)
1672 priv
->cfg
->sku
&= ~EEPROM_SKU_CAP_11N_ENABLE
;
1674 hw_params(priv
).num_ampdu_queues
=
1675 priv
->cfg
->base_params
->num_of_ampdu_queues
;
1676 hw_params(priv
).shadow_reg_enable
=
1677 priv
->cfg
->base_params
->shadow_reg_enable
;
1678 hw_params(priv
).sku
= priv
->cfg
->sku
;
1679 hw_params(priv
).wd_timeout
= priv
->cfg
->base_params
->wd_timeout
;
1681 /* Device-specific setup */
1682 return priv
->cfg
->lib
->set_hw_params(priv
);
1687 static void iwl_debug_config(struct iwl_priv
*priv
)
1689 dev_printk(KERN_INFO
, bus(priv
)->dev
, "CONFIG_IWLWIFI_DEBUG "
1690 #ifdef CONFIG_IWLWIFI_DEBUG
1695 dev_printk(KERN_INFO
, bus(priv
)->dev
, "CONFIG_IWLWIFI_DEBUGFS "
1696 #ifdef CONFIG_IWLWIFI_DEBUGFS
1701 dev_printk(KERN_INFO
, bus(priv
)->dev
, "CONFIG_IWLWIFI_DEVICE_TRACING "
1702 #ifdef CONFIG_IWLWIFI_DEVICE_TRACING
1708 dev_printk(KERN_INFO
, bus(priv
)->dev
, "CONFIG_IWLWIFI_DEVICE_TESTMODE "
1709 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
1714 dev_printk(KERN_INFO
, bus(priv
)->dev
, "CONFIG_IWLWIFI_P2P "
1715 #ifdef CONFIG_IWLWIFI_P2P
1722 int iwl_probe(struct iwl_bus
*bus
, const struct iwl_trans_ops
*trans_ops
,
1723 struct iwl_cfg
*cfg
)
1726 struct iwl_priv
*priv
;
1727 struct ieee80211_hw
*hw
;
1731 /************************
1732 * 1. Allocating HW data
1733 ************************/
1734 hw
= iwl_alloc_all();
1736 pr_err("%s: Cannot allocate network device\n", cfg
->name
);
1742 priv
->shrd
= &priv
->_shrd
;
1743 bus
->shrd
= priv
->shrd
;
1744 priv
->shrd
->bus
= bus
;
1745 priv
->shrd
->priv
= priv
;
1747 priv
->shrd
->trans
= trans_ops
->alloc(priv
->shrd
);
1748 if (priv
->shrd
->trans
== NULL
) {
1750 goto out_free_traffic_mem
;
1753 /* At this point both hw and priv are allocated. */
1755 SET_IEEE80211_DEV(hw
, bus(priv
)->dev
);
1757 /* what debugging capabilities we have */
1758 iwl_debug_config(priv
);
1760 IWL_DEBUG_INFO(priv
, "*** LOAD DRIVER ***\n");
1763 /* is antenna coupling more than 35dB ? */
1764 priv
->bt_ant_couple_ok
=
1765 (iwlagn_mod_params
.ant_coupling
>
1766 IWL_BT_ANTENNA_COUPLING_THRESHOLD
) ?
1769 /* enable/disable bt channel inhibition */
1770 priv
->bt_ch_announce
= iwlagn_mod_params
.bt_ch_announce
;
1771 IWL_DEBUG_INFO(priv
, "BT channel inhibition is %s\n",
1772 (priv
->bt_ch_announce
) ? "On" : "Off");
1774 if (iwl_alloc_traffic_mem(priv
))
1775 IWL_ERR(priv
, "Not enough memory to generate traffic log\n");
1777 /* these spin locks will be used in apm_ops.init and EEPROM access
1778 * we should init now
1780 spin_lock_init(&bus(priv
)->reg_lock
);
1781 spin_lock_init(&priv
->shrd
->lock
);
1784 * stop and reset the on-board processor just in case it is in a
1785 * strange state ... like being left stranded by a primary kernel
1786 * and this is now the kdump kernel trying to start up
1788 iwl_write32(bus(priv
), CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
1790 /***********************
1791 * 3. Read REV register
1792 ***********************/
1793 hw_rev
= iwl_hw_detect(priv
);
1794 IWL_INFO(priv
, "Detected %s, REV=0x%X\n",
1795 priv
->cfg
->name
, hw_rev
);
1797 err
= iwl_trans_request_irq(trans(priv
));
1799 goto out_free_trans
;
1801 if (iwl_trans_prepare_card_hw(trans(priv
))) {
1803 IWL_WARN(priv
, "Failed, HW not ready\n");
1804 goto out_free_trans
;
1810 /* Read the EEPROM */
1811 err
= iwl_eeprom_init(priv
, hw_rev
);
1813 IWL_ERR(priv
, "Unable to init EEPROM\n");
1814 goto out_free_trans
;
1816 err
= iwl_eeprom_check_version(priv
);
1818 goto out_free_eeprom
;
1820 err
= iwl_eeprom_check_sku(priv
);
1822 goto out_free_eeprom
;
1824 /* extract MAC Address */
1825 iwl_eeprom_get_mac(priv
->shrd
, priv
->addresses
[0].addr
);
1826 IWL_DEBUG_INFO(priv
, "MAC address: %pM\n", priv
->addresses
[0].addr
);
1827 priv
->hw
->wiphy
->addresses
= priv
->addresses
;
1828 priv
->hw
->wiphy
->n_addresses
= 1;
1829 num_mac
= iwl_eeprom_query16(priv
->shrd
, EEPROM_NUM_MAC_ADDRESS
);
1831 memcpy(priv
->addresses
[1].addr
, priv
->addresses
[0].addr
,
1833 priv
->addresses
[1].addr
[5]++;
1834 priv
->hw
->wiphy
->n_addresses
++;
1837 /************************
1838 * 5. Setup HW constants
1839 ************************/
1840 if (iwl_set_hw_params(priv
)) {
1842 IWL_ERR(priv
, "failed to set hw parameters\n");
1843 goto out_free_eeprom
;
1846 /*******************
1848 *******************/
1850 err
= iwl_init_drv(priv
);
1852 goto out_free_eeprom
;
1853 /* At this point both hw and priv are initialized. */
1855 /********************
1857 ********************/
1858 iwl_setup_deferred_work(priv
);
1859 iwl_setup_rx_handlers(priv
);
1860 iwl_testmode_init(priv
);
1862 /*********************************************
1863 * 8. Enable interrupts
1864 *********************************************/
1866 iwl_enable_rfkill_int(priv
);
1868 /* If platform's RF_KILL switch is NOT set to KILL */
1869 if (iwl_read32(bus(priv
),
1870 CSR_GP_CNTRL
) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
1871 clear_bit(STATUS_RF_KILL_HW
, &priv
->shrd
->status
);
1873 set_bit(STATUS_RF_KILL_HW
, &priv
->shrd
->status
);
1875 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
1876 test_bit(STATUS_RF_KILL_HW
, &priv
->shrd
->status
));
1878 iwl_power_initialize(priv
);
1879 iwl_tt_initialize(priv
);
1881 init_completion(&priv
->firmware_loading_complete
);
1883 err
= iwl_request_firmware(priv
, true);
1885 goto out_destroy_workqueue
;
1889 out_destroy_workqueue
:
1890 destroy_workqueue(priv
->shrd
->workqueue
);
1891 priv
->shrd
->workqueue
= NULL
;
1892 iwl_uninit_drv(priv
);
1894 iwl_eeprom_free(priv
->shrd
);
1896 iwl_trans_free(trans(priv
));
1897 out_free_traffic_mem
:
1898 iwl_free_traffic_mem(priv
);
1899 ieee80211_free_hw(priv
->hw
);
1904 void __devexit
iwl_remove(struct iwl_priv
* priv
)
1906 wait_for_completion(&priv
->firmware_loading_complete
);
1908 IWL_DEBUG_INFO(priv
, "*** UNLOAD DRIVER ***\n");
1910 iwl_dbgfs_unregister(priv
);
1912 /* ieee80211_unregister_hw call wil cause iwlagn_mac_stop to
1913 * to be called and iwl_down since we are removing the device
1914 * we need to set STATUS_EXIT_PENDING bit.
1916 set_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
1918 iwl_testmode_cleanup(priv
);
1919 iwl_leds_exit(priv
);
1921 if (priv
->mac80211_registered
) {
1922 ieee80211_unregister_hw(priv
->hw
);
1923 priv
->mac80211_registered
= 0;
1928 /*This will stop the queues, move the device to low power state */
1929 iwl_trans_stop_device(trans(priv
));
1931 iwl_dealloc_ucode(trans(priv
));
1933 iwl_eeprom_free(priv
->shrd
);
1935 /*netif_stop_queue(dev); */
1936 flush_workqueue(priv
->shrd
->workqueue
);
1938 /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes
1939 * priv->shrd->workqueue... so we can't take down the workqueue
1941 destroy_workqueue(priv
->shrd
->workqueue
);
1942 priv
->shrd
->workqueue
= NULL
;
1943 iwl_free_traffic_mem(priv
);
1945 iwl_trans_free(trans(priv
));
1947 iwl_uninit_drv(priv
);
1949 dev_kfree_skb(priv
->beacon_skb
);
1951 ieee80211_free_hw(priv
->hw
);
1955 /*****************************************************************************
1957 * driver and module entry point
1959 *****************************************************************************/
1960 static int __init
iwl_init(void)
1964 pr_info(DRV_DESCRIPTION
", " DRV_VERSION
"\n");
1965 pr_info(DRV_COPYRIGHT
"\n");
1967 ret
= iwlagn_rate_control_register();
1969 pr_err("Unable to register rate control algorithm: %d\n", ret
);
1973 ret
= iwl_pci_register_driver();
1976 goto error_register
;
1980 iwlagn_rate_control_unregister();
1984 static void __exit
iwl_exit(void)
1986 iwl_pci_unregister_driver();
1987 iwlagn_rate_control_unregister();
1990 module_exit(iwl_exit
);
1991 module_init(iwl_init
);
1993 #ifdef CONFIG_IWLWIFI_DEBUG
1994 module_param_named(debug
, iwlagn_mod_params
.debug_level
, uint
,
1996 MODULE_PARM_DESC(debug
, "debug output mask");
1999 module_param_named(swcrypto
, iwlagn_mod_params
.sw_crypto
, int, S_IRUGO
);
2000 MODULE_PARM_DESC(swcrypto
, "using crypto in software (default 0 [hardware])");
2001 module_param_named(queues_num
, iwlagn_mod_params
.num_of_queues
, int, S_IRUGO
);
2002 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
2003 module_param_named(11n_disable
, iwlagn_mod_params
.disable_11n
, int, S_IRUGO
);
2004 MODULE_PARM_DESC(11n_disable
, "disable 11n functionality");
2005 module_param_named(amsdu_size_8K
, iwlagn_mod_params
.amsdu_size_8K
,
2007 MODULE_PARM_DESC(amsdu_size_8K
, "enable 8K amsdu size");
2008 module_param_named(fw_restart
, iwlagn_mod_params
.restart_fw
, int, S_IRUGO
);
2009 MODULE_PARM_DESC(fw_restart
, "restart firmware in case of error");
2011 module_param_named(ucode_alternative
,
2012 iwlagn_mod_params
.wanted_ucode_alternative
,
2014 MODULE_PARM_DESC(ucode_alternative
,
2015 "specify ucode alternative to use from ucode file");
2017 module_param_named(antenna_coupling
, iwlagn_mod_params
.ant_coupling
,
2019 MODULE_PARM_DESC(antenna_coupling
,
2020 "specify antenna coupling in dB (defualt: 0 dB)");
2022 module_param_named(bt_ch_inhibition
, iwlagn_mod_params
.bt_ch_announce
,
2024 MODULE_PARM_DESC(bt_ch_inhibition
,
2025 "Enable BT channel inhibition (default: enable)");
2027 module_param_named(plcp_check
, iwlagn_mod_params
.plcp_check
, bool, S_IRUGO
);
2028 MODULE_PARM_DESC(plcp_check
, "Check plcp health (default: 1 [enabled])");
2030 module_param_named(ack_check
, iwlagn_mod_params
.ack_check
, bool, S_IRUGO
);
2031 MODULE_PARM_DESC(ack_check
, "Check ack health (default: 0 [disabled])");
2033 module_param_named(wd_disable
, iwlagn_mod_params
.wd_disable
, int, S_IRUGO
);
2034 MODULE_PARM_DESC(wd_disable
,
2035 "Disable stuck queue watchdog timer 0=system default, "
2036 "1=disable, 2=enable (default: 0)");
2039 * set bt_coex_active to true, uCode will do kill/defer
2040 * every time the priority line is asserted (BT is sending signals on the
2041 * priority line in the PCIx).
2042 * set bt_coex_active to false, uCode will ignore the BT activity and
2043 * perform the normal operation
2045 * User might experience transmit issue on some platform due to WiFi/BT
2046 * co-exist problem. The possible behaviors are:
2047 * Able to scan and finding all the available AP
2048 * Not able to associate with any AP
2049 * On those platforms, WiFi communication can be restored by set
2050 * "bt_coex_active" module parameter to "false"
2052 * default: bt_coex_active = true (BT_COEX_ENABLE)
2054 module_param_named(bt_coex_active
, iwlagn_mod_params
.bt_coex_active
,
2056 MODULE_PARM_DESC(bt_coex_active
, "enable wifi/bt co-exist (default: enable)");
2058 module_param_named(led_mode
, iwlagn_mod_params
.led_mode
, int, S_IRUGO
);
2059 MODULE_PARM_DESC(led_mode
, "0=system default, "
2060 "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)");
2062 module_param_named(power_save
, iwlagn_mod_params
.power_save
,
2064 MODULE_PARM_DESC(power_save
,
2065 "enable WiFi power management (default: disable)");
2067 module_param_named(power_level
, iwlagn_mod_params
.power_level
,
2069 MODULE_PARM_DESC(power_level
,
2070 "default power save level (range from 1 - 5, default: 1)");
2072 module_param_named(auto_agg
, iwlagn_mod_params
.auto_agg
,
2074 MODULE_PARM_DESC(auto_agg
,
2075 "enable agg w/o check traffic load (default: enable)");
2078 * For now, keep using power level 1 instead of automatically
2081 module_param_named(no_sleep_autoadjust
, iwlagn_mod_params
.no_sleep_autoadjust
,
2083 MODULE_PARM_DESC(no_sleep_autoadjust
,
2084 "don't automatically adjust sleep level "
2085 "according to maximum network latency (default: true)");