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/dma-mapping.h>
34 #include <linux/delay.h>
35 #include <linux/sched.h>
36 #include <linux/skbuff.h>
37 #include <linux/netdevice.h>
38 #include <linux/firmware.h>
39 #include <linux/etherdevice.h>
40 #include <linux/if_arp.h>
42 #include <net/mac80211.h>
44 #include <asm/div64.h>
46 #include "iwl-eeprom.h"
50 #include "iwl-agn-calib.h"
52 #include "iwl-shared.h"
54 #include "iwl-trans.h"
56 /******************************************************************************
60 ******************************************************************************/
63 * module name, copyright, version, etc.
65 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
67 #ifdef CONFIG_IWLWIFI_DEBUG
73 #define DRV_VERSION IWLWIFI_VERSION VD
76 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
77 MODULE_VERSION(DRV_VERSION
);
78 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
79 MODULE_LICENSE("GPL");
80 MODULE_ALIAS("iwlagn");
82 void iwl_update_chain_flags(struct iwl_priv
*priv
)
84 struct iwl_rxon_context
*ctx
;
86 for_each_context(priv
, ctx
) {
87 iwlagn_set_rxon_chain(priv
, ctx
);
88 if (ctx
->active
.rx_chain
!= ctx
->staging
.rx_chain
)
89 iwlagn_commit_rxon(priv
, ctx
);
93 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
94 static void iwl_set_beacon_tim(struct iwl_priv
*priv
,
95 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
,
96 u8
*beacon
, u32 frame_size
)
99 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)beacon
;
102 * The index is relative to frame start but we start looking at the
103 * variable-length part of the beacon.
105 tim_idx
= mgmt
->u
.beacon
.variable
- beacon
;
107 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
108 while ((tim_idx
< (frame_size
- 2)) &&
109 (beacon
[tim_idx
] != WLAN_EID_TIM
))
110 tim_idx
+= beacon
[tim_idx
+1] + 2;
112 /* If TIM field was found, set variables */
113 if ((tim_idx
< (frame_size
- 1)) && (beacon
[tim_idx
] == WLAN_EID_TIM
)) {
114 tx_beacon_cmd
->tim_idx
= cpu_to_le16(tim_idx
);
115 tx_beacon_cmd
->tim_size
= beacon
[tim_idx
+1];
117 IWL_WARN(priv
, "Unable to find TIM Element in beacon\n");
120 int iwlagn_send_beacon_cmd(struct iwl_priv
*priv
)
122 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
;
123 struct iwl_host_cmd cmd
= {
124 .id
= REPLY_TX_BEACON
,
127 struct ieee80211_tx_info
*info
;
133 * We have to set up the TX command, the TX Beacon command, and the
137 lockdep_assert_held(&priv
->shrd
->mutex
);
139 if (!priv
->beacon_ctx
) {
140 IWL_ERR(priv
, "trying to build beacon w/o beacon context!\n");
144 if (WARN_ON(!priv
->beacon_skb
))
147 /* Allocate beacon command */
148 if (!priv
->beacon_cmd
)
149 priv
->beacon_cmd
= kzalloc(sizeof(*tx_beacon_cmd
), GFP_KERNEL
);
150 tx_beacon_cmd
= priv
->beacon_cmd
;
154 frame_size
= priv
->beacon_skb
->len
;
156 /* Set up TX command fields */
157 tx_beacon_cmd
->tx
.len
= cpu_to_le16((u16
)frame_size
);
158 tx_beacon_cmd
->tx
.sta_id
= priv
->beacon_ctx
->bcast_sta_id
;
159 tx_beacon_cmd
->tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
160 tx_beacon_cmd
->tx
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
|
161 TX_CMD_FLG_TSF_MSK
| TX_CMD_FLG_STA_RATE_MSK
;
163 /* Set up TX beacon command fields */
164 iwl_set_beacon_tim(priv
, tx_beacon_cmd
, priv
->beacon_skb
->data
,
167 /* Set up packet rate and flags */
168 info
= IEEE80211_SKB_CB(priv
->beacon_skb
);
171 * Let's set up the rate at least somewhat correctly;
172 * it will currently not actually be used by the uCode,
173 * it uses the broadcast station's rate instead.
175 if (info
->control
.rates
[0].idx
< 0 ||
176 info
->control
.rates
[0].flags
& IEEE80211_TX_RC_MCS
)
179 rate
= info
->control
.rates
[0].idx
;
181 priv
->mgmt_tx_ant
= iwl_toggle_tx_ant(priv
, priv
->mgmt_tx_ant
,
182 hw_params(priv
).valid_tx_ant
);
183 rate_flags
= iwl_ant_idx_to_flags(priv
->mgmt_tx_ant
);
185 /* In mac80211, rates for 5 GHz start at 0 */
186 if (info
->band
== IEEE80211_BAND_5GHZ
)
187 rate
+= IWL_FIRST_OFDM_RATE
;
188 else if (rate
>= IWL_FIRST_CCK_RATE
&& rate
<= IWL_LAST_CCK_RATE
)
189 rate_flags
|= RATE_MCS_CCK_MSK
;
191 tx_beacon_cmd
->tx
.rate_n_flags
=
192 iwl_hw_set_rate_n_flags(rate
, rate_flags
);
195 cmd
.len
[0] = sizeof(*tx_beacon_cmd
);
196 cmd
.data
[0] = tx_beacon_cmd
;
197 cmd
.dataflags
[0] = IWL_HCMD_DFL_NOCOPY
;
198 cmd
.len
[1] = frame_size
;
199 cmd
.data
[1] = priv
->beacon_skb
->data
;
200 cmd
.dataflags
[1] = IWL_HCMD_DFL_NOCOPY
;
202 return iwl_trans_send_cmd(trans(priv
), &cmd
);
205 static void iwl_bg_beacon_update(struct work_struct
*work
)
207 struct iwl_priv
*priv
=
208 container_of(work
, struct iwl_priv
, beacon_update
);
209 struct sk_buff
*beacon
;
211 mutex_lock(&priv
->shrd
->mutex
);
212 if (!priv
->beacon_ctx
) {
213 IWL_ERR(priv
, "updating beacon w/o beacon context!\n");
217 if (priv
->beacon_ctx
->vif
->type
!= NL80211_IFTYPE_AP
) {
219 * The ucode will send beacon notifications even in
220 * IBSS mode, but we don't want to process them. But
221 * we need to defer the type check to here due to
222 * requiring locking around the beacon_ctx access.
227 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
228 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->beacon_ctx
->vif
);
230 IWL_ERR(priv
, "update beacon failed -- keeping old\n");
234 /* new beacon skb is allocated every time; dispose previous.*/
235 dev_kfree_skb(priv
->beacon_skb
);
237 priv
->beacon_skb
= beacon
;
239 iwlagn_send_beacon_cmd(priv
);
241 mutex_unlock(&priv
->shrd
->mutex
);
244 static void iwl_bg_bt_runtime_config(struct work_struct
*work
)
246 struct iwl_priv
*priv
=
247 container_of(work
, struct iwl_priv
, bt_runtime_config
);
249 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
252 /* dont send host command if rf-kill is on */
253 if (!iwl_is_ready_rf(priv
->shrd
))
255 iwlagn_send_advance_bt_config(priv
);
258 static void iwl_bg_bt_full_concurrency(struct work_struct
*work
)
260 struct iwl_priv
*priv
=
261 container_of(work
, struct iwl_priv
, bt_full_concurrency
);
262 struct iwl_rxon_context
*ctx
;
264 mutex_lock(&priv
->shrd
->mutex
);
266 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
269 /* dont send host command if rf-kill is on */
270 if (!iwl_is_ready_rf(priv
->shrd
))
273 IWL_DEBUG_INFO(priv
, "BT coex in %s mode\n",
274 priv
->bt_full_concurrent
?
275 "full concurrency" : "3-wire");
278 * LQ & RXON updated cmds must be sent before BT Config cmd
279 * to avoid 3-wire collisions
281 for_each_context(priv
, ctx
) {
282 iwlagn_set_rxon_chain(priv
, ctx
);
283 iwlagn_commit_rxon(priv
, ctx
);
286 iwlagn_send_advance_bt_config(priv
);
288 mutex_unlock(&priv
->shrd
->mutex
);
292 * iwl_bg_statistics_periodic - Timer callback to queue statistics
294 * This callback is provided in order to send a statistics request.
296 * This timer function is continually reset to execute within
297 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
298 * was received. We need to ensure we receive the statistics in order
299 * to update the temperature used for calibrating the TXPOWER.
301 static void iwl_bg_statistics_periodic(unsigned long data
)
303 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
305 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
308 /* dont send host command if rf-kill is on */
309 if (!iwl_is_ready_rf(priv
->shrd
))
312 iwl_send_statistics_request(priv
, CMD_ASYNC
, false);
316 static void iwl_print_cont_event_trace(struct iwl_priv
*priv
, u32 base
,
317 u32 start_idx
, u32 num_events
,
321 u32 ptr
; /* SRAM byte address of log data */
322 u32 ev
, time
, data
; /* event log data */
323 unsigned long reg_flags
;
326 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 2 * sizeof(u32
));
328 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 3 * sizeof(u32
));
330 /* Make sure device is powered up for SRAM reads */
331 spin_lock_irqsave(&bus(priv
)->reg_lock
, reg_flags
);
332 if (iwl_grab_nic_access(bus(priv
))) {
333 spin_unlock_irqrestore(&bus(priv
)->reg_lock
, reg_flags
);
337 /* Set starting address; reads will auto-increment */
338 iwl_write32(bus(priv
), HBUS_TARG_MEM_RADDR
, ptr
);
342 * "time" is actually "data" for mode 0 (no timestamp).
343 * place event id # at far right for easier visual parsing.
345 for (i
= 0; i
< num_events
; i
++) {
346 ev
= iwl_read32(bus(priv
), HBUS_TARG_MEM_RDAT
);
347 time
= iwl_read32(bus(priv
), HBUS_TARG_MEM_RDAT
);
349 trace_iwlwifi_dev_ucode_cont_event(priv
,
352 data
= iwl_read32(bus(priv
), HBUS_TARG_MEM_RDAT
);
353 trace_iwlwifi_dev_ucode_cont_event(priv
,
357 /* Allow device to power down */
358 iwl_release_nic_access(bus(priv
));
359 spin_unlock_irqrestore(&bus(priv
)->reg_lock
, reg_flags
);
362 static void iwl_continuous_event_trace(struct iwl_priv
*priv
)
364 u32 capacity
; /* event log capacity in # entries */
365 u32 base
; /* SRAM byte address of event log header */
366 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
367 u32 num_wraps
; /* # times uCode wrapped to top of log */
368 u32 next_entry
; /* index of next entry to be written by uCode */
370 base
= priv
->device_pointers
.error_event_table
;
371 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
372 capacity
= iwl_read_targ_mem(bus(priv
), base
);
373 num_wraps
= iwl_read_targ_mem(bus(priv
),
374 base
+ (2 * sizeof(u32
)));
375 mode
= iwl_read_targ_mem(bus(priv
), base
+ (1 * sizeof(u32
)));
376 next_entry
= iwl_read_targ_mem(bus(priv
),
377 base
+ (3 * sizeof(u32
)));
381 if (num_wraps
== priv
->event_log
.num_wraps
) {
382 iwl_print_cont_event_trace(priv
,
383 base
, priv
->event_log
.next_entry
,
384 next_entry
- priv
->event_log
.next_entry
,
386 priv
->event_log
.non_wraps_count
++;
388 if ((num_wraps
- priv
->event_log
.num_wraps
) > 1)
389 priv
->event_log
.wraps_more_count
++;
391 priv
->event_log
.wraps_once_count
++;
392 trace_iwlwifi_dev_ucode_wrap_event(priv
,
393 num_wraps
- priv
->event_log
.num_wraps
,
394 next_entry
, priv
->event_log
.next_entry
);
395 if (next_entry
< priv
->event_log
.next_entry
) {
396 iwl_print_cont_event_trace(priv
, base
,
397 priv
->event_log
.next_entry
,
398 capacity
- priv
->event_log
.next_entry
,
401 iwl_print_cont_event_trace(priv
, base
, 0,
404 iwl_print_cont_event_trace(priv
, base
,
405 next_entry
, capacity
- next_entry
,
408 iwl_print_cont_event_trace(priv
, base
, 0,
412 priv
->event_log
.num_wraps
= num_wraps
;
413 priv
->event_log
.next_entry
= next_entry
;
417 * iwl_bg_ucode_trace - Timer callback to log ucode event
419 * The timer is continually set to execute every
420 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
421 * this function is to perform continuous uCode event logging operation
424 static void iwl_bg_ucode_trace(unsigned long data
)
426 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
428 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
431 if (priv
->event_log
.ucode_trace
) {
432 iwl_continuous_event_trace(priv
);
433 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
434 mod_timer(&priv
->ucode_trace
,
435 jiffies
+ msecs_to_jiffies(UCODE_TRACE_PERIOD
));
439 static void iwl_bg_tx_flush(struct work_struct
*work
)
441 struct iwl_priv
*priv
=
442 container_of(work
, struct iwl_priv
, tx_flush
);
444 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
447 /* do nothing if rf-kill is on */
448 if (!iwl_is_ready_rf(priv
->shrd
))
451 IWL_DEBUG_INFO(priv
, "device request: flush all tx frames\n");
452 iwlagn_dev_txfifo_flush(priv
, IWL_DROP_ALL
);
455 /******************************************************************************
457 * uCode download functions
459 ******************************************************************************/
461 static void iwl_free_fw_desc(struct iwl_priv
*priv
, struct fw_desc
*desc
)
464 dma_free_coherent(bus(priv
)->dev
, desc
->len
,
465 desc
->v_addr
, desc
->p_addr
);
470 static void iwl_free_fw_img(struct iwl_priv
*priv
, struct fw_img
*img
)
472 iwl_free_fw_desc(priv
, &img
->code
);
473 iwl_free_fw_desc(priv
, &img
->data
);
476 static void iwl_dealloc_ucode(struct iwl_priv
*priv
)
478 iwl_free_fw_img(priv
, &priv
->ucode_rt
);
479 iwl_free_fw_img(priv
, &priv
->ucode_init
);
480 iwl_free_fw_img(priv
, &priv
->ucode_wowlan
);
483 static int iwl_alloc_fw_desc(struct iwl_priv
*priv
, struct fw_desc
*desc
,
484 const void *data
, size_t len
)
491 desc
->v_addr
= dma_alloc_coherent(bus(priv
)->dev
, len
,
492 &desc
->p_addr
, GFP_KERNEL
);
497 memcpy(desc
->v_addr
, data
, len
);
501 static void iwl_init_context(struct iwl_priv
*priv
, u32 ucode_flags
)
506 * The default context is always valid,
507 * the PAN context depends on uCode.
509 priv
->shrd
->valid_contexts
= BIT(IWL_RXON_CTX_BSS
);
510 if (ucode_flags
& IWL_UCODE_TLV_FLAGS_PAN
)
511 priv
->shrd
->valid_contexts
|= BIT(IWL_RXON_CTX_PAN
);
513 for (i
= 0; i
< NUM_IWL_RXON_CTX
; i
++)
514 priv
->contexts
[i
].ctxid
= i
;
516 priv
->contexts
[IWL_RXON_CTX_BSS
].always_active
= true;
517 priv
->contexts
[IWL_RXON_CTX_BSS
].is_active
= true;
518 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_cmd
= REPLY_RXON
;
519 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_timing_cmd
= REPLY_RXON_TIMING
;
520 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_assoc_cmd
= REPLY_RXON_ASSOC
;
521 priv
->contexts
[IWL_RXON_CTX_BSS
].qos_cmd
= REPLY_QOS_PARAM
;
522 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_sta_id
= IWL_AP_ID
;
523 priv
->contexts
[IWL_RXON_CTX_BSS
].wep_key_cmd
= REPLY_WEPKEY
;
524 priv
->contexts
[IWL_RXON_CTX_BSS
].exclusive_interface_modes
=
525 BIT(NL80211_IFTYPE_ADHOC
);
526 priv
->contexts
[IWL_RXON_CTX_BSS
].interface_modes
=
527 BIT(NL80211_IFTYPE_STATION
);
528 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_devtype
= RXON_DEV_TYPE_AP
;
529 priv
->contexts
[IWL_RXON_CTX_BSS
].ibss_devtype
= RXON_DEV_TYPE_IBSS
;
530 priv
->contexts
[IWL_RXON_CTX_BSS
].station_devtype
= RXON_DEV_TYPE_ESS
;
531 priv
->contexts
[IWL_RXON_CTX_BSS
].unused_devtype
= RXON_DEV_TYPE_ESS
;
533 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_cmd
= REPLY_WIPAN_RXON
;
534 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_timing_cmd
=
535 REPLY_WIPAN_RXON_TIMING
;
536 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_assoc_cmd
=
537 REPLY_WIPAN_RXON_ASSOC
;
538 priv
->contexts
[IWL_RXON_CTX_PAN
].qos_cmd
= REPLY_WIPAN_QOS_PARAM
;
539 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_sta_id
= IWL_AP_ID_PAN
;
540 priv
->contexts
[IWL_RXON_CTX_PAN
].wep_key_cmd
= REPLY_WIPAN_WEPKEY
;
541 priv
->contexts
[IWL_RXON_CTX_PAN
].bcast_sta_id
= IWLAGN_PAN_BCAST_ID
;
542 priv
->contexts
[IWL_RXON_CTX_PAN
].station_flags
= STA_FLG_PAN_STATION
;
543 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
=
544 BIT(NL80211_IFTYPE_STATION
) | BIT(NL80211_IFTYPE_AP
);
546 if (ucode_flags
& IWL_UCODE_TLV_FLAGS_P2P
)
547 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
|=
548 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
549 BIT(NL80211_IFTYPE_P2P_GO
);
551 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_devtype
= RXON_DEV_TYPE_CP
;
552 priv
->contexts
[IWL_RXON_CTX_PAN
].station_devtype
= RXON_DEV_TYPE_2STA
;
553 priv
->contexts
[IWL_RXON_CTX_PAN
].unused_devtype
= RXON_DEV_TYPE_P2P
;
555 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
559 struct iwlagn_ucode_capabilities
{
560 u32 max_probe_length
;
561 u32 standard_phy_calibration_size
;
565 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
);
566 static int iwlagn_mac_setup_register(struct iwl_priv
*priv
,
567 struct iwlagn_ucode_capabilities
*capa
);
569 #define UCODE_EXPERIMENTAL_INDEX 100
570 #define UCODE_EXPERIMENTAL_TAG "exp"
572 static int __must_check
iwl_request_firmware(struct iwl_priv
*priv
, bool first
)
574 const char *name_pre
= priv
->cfg
->fw_name_pre
;
578 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
579 priv
->fw_index
= UCODE_EXPERIMENTAL_INDEX
;
580 strcpy(tag
, UCODE_EXPERIMENTAL_TAG
);
581 } else if (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
) {
583 priv
->fw_index
= priv
->cfg
->ucode_api_max
;
584 sprintf(tag
, "%d", priv
->fw_index
);
587 sprintf(tag
, "%d", priv
->fw_index
);
590 if (priv
->fw_index
< priv
->cfg
->ucode_api_min
) {
591 IWL_ERR(priv
, "no suitable firmware found!\n");
595 sprintf(priv
->firmware_name
, "%s%s%s", name_pre
, tag
, ".ucode");
597 IWL_DEBUG_INFO(priv
, "attempting to load firmware %s'%s'\n",
598 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
599 ? "EXPERIMENTAL " : "",
600 priv
->firmware_name
);
602 return request_firmware_nowait(THIS_MODULE
, 1, priv
->firmware_name
,
604 GFP_KERNEL
, priv
, iwl_ucode_callback
);
607 struct iwlagn_firmware_pieces
{
608 const void *inst
, *data
, *init
, *init_data
, *wowlan_inst
, *wowlan_data
;
609 size_t inst_size
, data_size
, init_size
, init_data_size
,
610 wowlan_inst_size
, wowlan_data_size
;
614 u32 init_evtlog_ptr
, init_evtlog_size
, init_errlog_ptr
;
615 u32 inst_evtlog_ptr
, inst_evtlog_size
, inst_errlog_ptr
;
618 static int iwlagn_load_legacy_firmware(struct iwl_priv
*priv
,
619 const struct firmware
*ucode_raw
,
620 struct iwlagn_firmware_pieces
*pieces
)
622 struct iwl_ucode_header
*ucode
= (void *)ucode_raw
->data
;
623 u32 api_ver
, hdr_size
;
626 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
627 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
632 if (ucode_raw
->size
< hdr_size
) {
633 IWL_ERR(priv
, "File size too small!\n");
636 pieces
->build
= le32_to_cpu(ucode
->u
.v2
.build
);
637 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v2
.inst_size
);
638 pieces
->data_size
= le32_to_cpu(ucode
->u
.v2
.data_size
);
639 pieces
->init_size
= le32_to_cpu(ucode
->u
.v2
.init_size
);
640 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v2
.init_data_size
);
641 src
= ucode
->u
.v2
.data
;
647 if (ucode_raw
->size
< hdr_size
) {
648 IWL_ERR(priv
, "File size too small!\n");
652 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v1
.inst_size
);
653 pieces
->data_size
= le32_to_cpu(ucode
->u
.v1
.data_size
);
654 pieces
->init_size
= le32_to_cpu(ucode
->u
.v1
.init_size
);
655 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v1
.init_data_size
);
656 src
= ucode
->u
.v1
.data
;
660 /* Verify size of file vs. image size info in file's header */
661 if (ucode_raw
->size
!= hdr_size
+ pieces
->inst_size
+
662 pieces
->data_size
+ pieces
->init_size
+
663 pieces
->init_data_size
) {
666 "uCode file size %d does not match expected size\n",
667 (int)ucode_raw
->size
);
672 src
+= pieces
->inst_size
;
674 src
+= pieces
->data_size
;
676 src
+= pieces
->init_size
;
677 pieces
->init_data
= src
;
678 src
+= pieces
->init_data_size
;
683 static int iwlagn_load_firmware(struct iwl_priv
*priv
,
684 const struct firmware
*ucode_raw
,
685 struct iwlagn_firmware_pieces
*pieces
,
686 struct iwlagn_ucode_capabilities
*capa
)
688 struct iwl_tlv_ucode_header
*ucode
= (void *)ucode_raw
->data
;
689 struct iwl_ucode_tlv
*tlv
;
690 size_t len
= ucode_raw
->size
;
692 int wanted_alternative
= iwlagn_mod_params
.wanted_ucode_alternative
;
696 enum iwl_ucode_tlv_type tlv_type
;
699 if (len
< sizeof(*ucode
)) {
700 IWL_ERR(priv
, "uCode has invalid length: %zd\n", len
);
704 if (ucode
->magic
!= cpu_to_le32(IWL_TLV_UCODE_MAGIC
)) {
705 IWL_ERR(priv
, "invalid uCode magic: 0X%x\n",
706 le32_to_cpu(ucode
->magic
));
711 * Check which alternatives are present, and "downgrade"
712 * when the chosen alternative is not present, warning
713 * the user when that happens. Some files may not have
714 * any alternatives, so don't warn in that case.
716 alternatives
= le64_to_cpu(ucode
->alternatives
);
717 tmp
= wanted_alternative
;
718 if (wanted_alternative
> 63)
719 wanted_alternative
= 63;
720 while (wanted_alternative
&& !(alternatives
& BIT(wanted_alternative
)))
721 wanted_alternative
--;
722 if (wanted_alternative
&& wanted_alternative
!= tmp
)
724 "uCode alternative %d not available, choosing %d\n",
725 tmp
, wanted_alternative
);
727 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
728 pieces
->build
= le32_to_cpu(ucode
->build
);
731 len
-= sizeof(*ucode
);
733 while (len
>= sizeof(*tlv
)) {
739 tlv_len
= le32_to_cpu(tlv
->length
);
740 tlv_type
= le16_to_cpu(tlv
->type
);
741 tlv_alt
= le16_to_cpu(tlv
->alternative
);
742 tlv_data
= tlv
->data
;
745 IWL_ERR(priv
, "invalid TLV len: %zd/%u\n",
749 len
-= ALIGN(tlv_len
, 4);
750 data
+= sizeof(*tlv
) + ALIGN(tlv_len
, 4);
753 * Alternative 0 is always valid.
755 * Skip alternative TLVs that are not selected.
757 if (tlv_alt
!= 0 && tlv_alt
!= wanted_alternative
)
761 case IWL_UCODE_TLV_INST
:
762 pieces
->inst
= tlv_data
;
763 pieces
->inst_size
= tlv_len
;
765 case IWL_UCODE_TLV_DATA
:
766 pieces
->data
= tlv_data
;
767 pieces
->data_size
= tlv_len
;
769 case IWL_UCODE_TLV_INIT
:
770 pieces
->init
= tlv_data
;
771 pieces
->init_size
= tlv_len
;
773 case IWL_UCODE_TLV_INIT_DATA
:
774 pieces
->init_data
= tlv_data
;
775 pieces
->init_data_size
= tlv_len
;
777 case IWL_UCODE_TLV_BOOT
:
778 IWL_ERR(priv
, "Found unexpected BOOT ucode\n");
780 case IWL_UCODE_TLV_PROBE_MAX_LEN
:
781 if (tlv_len
!= sizeof(u32
))
782 goto invalid_tlv_len
;
783 capa
->max_probe_length
=
784 le32_to_cpup((__le32
*)tlv_data
);
786 case IWL_UCODE_TLV_PAN
:
788 goto invalid_tlv_len
;
789 capa
->flags
|= IWL_UCODE_TLV_FLAGS_PAN
;
791 case IWL_UCODE_TLV_FLAGS
:
792 /* must be at least one u32 */
793 if (tlv_len
< sizeof(u32
))
794 goto invalid_tlv_len
;
795 /* and a proper number of u32s */
796 if (tlv_len
% sizeof(u32
))
797 goto invalid_tlv_len
;
799 * This driver only reads the first u32 as
800 * right now no more features are defined,
801 * if that changes then either the driver
802 * will not work with the new firmware, or
803 * it'll not take advantage of new features.
805 capa
->flags
= le32_to_cpup((__le32
*)tlv_data
);
807 case IWL_UCODE_TLV_INIT_EVTLOG_PTR
:
808 if (tlv_len
!= sizeof(u32
))
809 goto invalid_tlv_len
;
810 pieces
->init_evtlog_ptr
=
811 le32_to_cpup((__le32
*)tlv_data
);
813 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE
:
814 if (tlv_len
!= sizeof(u32
))
815 goto invalid_tlv_len
;
816 pieces
->init_evtlog_size
=
817 le32_to_cpup((__le32
*)tlv_data
);
819 case IWL_UCODE_TLV_INIT_ERRLOG_PTR
:
820 if (tlv_len
!= sizeof(u32
))
821 goto invalid_tlv_len
;
822 pieces
->init_errlog_ptr
=
823 le32_to_cpup((__le32
*)tlv_data
);
825 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR
:
826 if (tlv_len
!= sizeof(u32
))
827 goto invalid_tlv_len
;
828 pieces
->inst_evtlog_ptr
=
829 le32_to_cpup((__le32
*)tlv_data
);
831 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE
:
832 if (tlv_len
!= sizeof(u32
))
833 goto invalid_tlv_len
;
834 pieces
->inst_evtlog_size
=
835 le32_to_cpup((__le32
*)tlv_data
);
837 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR
:
838 if (tlv_len
!= sizeof(u32
))
839 goto invalid_tlv_len
;
840 pieces
->inst_errlog_ptr
=
841 le32_to_cpup((__le32
*)tlv_data
);
843 case IWL_UCODE_TLV_ENHANCE_SENS_TBL
:
845 goto invalid_tlv_len
;
846 priv
->enhance_sensitivity_table
= true;
848 case IWL_UCODE_TLV_WOWLAN_INST
:
849 pieces
->wowlan_inst
= tlv_data
;
850 pieces
->wowlan_inst_size
= tlv_len
;
852 case IWL_UCODE_TLV_WOWLAN_DATA
:
853 pieces
->wowlan_data
= tlv_data
;
854 pieces
->wowlan_data_size
= tlv_len
;
856 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE
:
857 if (tlv_len
!= sizeof(u32
))
858 goto invalid_tlv_len
;
859 capa
->standard_phy_calibration_size
=
860 le32_to_cpup((__le32
*)tlv_data
);
863 IWL_DEBUG_INFO(priv
, "unknown TLV: %d\n", tlv_type
);
869 IWL_ERR(priv
, "invalid TLV after parsing: %zd\n", len
);
870 iwl_print_hex_dump(priv
, IWL_DL_FW
, (u8
*)data
, len
);
877 IWL_ERR(priv
, "TLV %d has invalid size: %u\n", tlv_type
, tlv_len
);
878 iwl_print_hex_dump(priv
, IWL_DL_FW
, tlv_data
, tlv_len
);
884 * iwl_ucode_callback - callback when firmware was loaded
886 * If loaded successfully, copies the firmware into buffers
887 * for the card to fetch (via DMA).
889 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
)
891 struct iwl_priv
*priv
= context
;
892 struct iwl_ucode_header
*ucode
;
894 struct iwlagn_firmware_pieces pieces
;
895 const unsigned int api_max
= priv
->cfg
->ucode_api_max
;
896 unsigned int api_ok
= priv
->cfg
->ucode_api_ok
;
897 const unsigned int api_min
= priv
->cfg
->ucode_api_min
;
901 struct iwlagn_ucode_capabilities ucode_capa
= {
902 .max_probe_length
= 200,
903 .standard_phy_calibration_size
=
904 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE
,
910 memset(&pieces
, 0, sizeof(pieces
));
913 if (priv
->fw_index
<= api_ok
)
915 "request for firmware file '%s' failed.\n",
916 priv
->firmware_name
);
920 IWL_DEBUG_INFO(priv
, "Loaded firmware file '%s' (%zd bytes).\n",
921 priv
->firmware_name
, ucode_raw
->size
);
923 /* Make sure that we got at least the API version number */
924 if (ucode_raw
->size
< 4) {
925 IWL_ERR(priv
, "File size way too small!\n");
929 /* Data from ucode file: header followed by uCode images */
930 ucode
= (struct iwl_ucode_header
*)ucode_raw
->data
;
933 err
= iwlagn_load_legacy_firmware(priv
, ucode_raw
, &pieces
);
935 err
= iwlagn_load_firmware(priv
, ucode_raw
, &pieces
,
941 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
942 build
= pieces
.build
;
945 * api_ver should match the api version forming part of the
946 * firmware filename ... but we don't check for that and only rely
947 * on the API version read from firmware header from here on forward
949 /* no api version check required for experimental uCode */
950 if (priv
->fw_index
!= UCODE_EXPERIMENTAL_INDEX
) {
951 if (api_ver
< api_min
|| api_ver
> api_max
) {
953 "Driver unable to support your firmware API. "
954 "Driver supports v%u, firmware is v%u.\n",
959 if (api_ver
< api_ok
) {
960 if (api_ok
!= api_max
)
961 IWL_ERR(priv
, "Firmware has old API version, "
962 "expected v%u through v%u, got v%u.\n",
963 api_ok
, api_max
, api_ver
);
965 IWL_ERR(priv
, "Firmware has old API version, "
966 "expected v%u, got v%u.\n",
968 IWL_ERR(priv
, "New firmware can be obtained from "
969 "http://www.intellinuxwireless.org/.\n");
974 sprintf(buildstr
, " build %u%s", build
,
975 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
980 IWL_INFO(priv
, "loaded firmware version %u.%u.%u.%u%s\n",
981 IWL_UCODE_MAJOR(priv
->ucode_ver
),
982 IWL_UCODE_MINOR(priv
->ucode_ver
),
983 IWL_UCODE_API(priv
->ucode_ver
),
984 IWL_UCODE_SERIAL(priv
->ucode_ver
),
987 snprintf(priv
->hw
->wiphy
->fw_version
,
988 sizeof(priv
->hw
->wiphy
->fw_version
),
990 IWL_UCODE_MAJOR(priv
->ucode_ver
),
991 IWL_UCODE_MINOR(priv
->ucode_ver
),
992 IWL_UCODE_API(priv
->ucode_ver
),
993 IWL_UCODE_SERIAL(priv
->ucode_ver
),
997 * For any of the failures below (before allocating pci memory)
998 * we will try to load a version with a smaller API -- maybe the
999 * user just got a corrupted version of the latest API.
1002 IWL_DEBUG_INFO(priv
, "f/w package hdr ucode version raw = 0x%x\n",
1004 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime inst size = %Zd\n",
1006 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime data size = %Zd\n",
1008 IWL_DEBUG_INFO(priv
, "f/w package hdr init inst size = %Zd\n",
1010 IWL_DEBUG_INFO(priv
, "f/w package hdr init data size = %Zd\n",
1011 pieces
.init_data_size
);
1013 /* Verify that uCode images will fit in card's SRAM */
1014 if (pieces
.inst_size
> hw_params(priv
).max_inst_size
) {
1015 IWL_ERR(priv
, "uCode instr len %Zd too large to fit in\n",
1020 if (pieces
.data_size
> hw_params(priv
).max_data_size
) {
1021 IWL_ERR(priv
, "uCode data len %Zd too large to fit in\n",
1026 if (pieces
.init_size
> hw_params(priv
).max_inst_size
) {
1027 IWL_ERR(priv
, "uCode init instr len %Zd too large to fit in\n",
1032 if (pieces
.init_data_size
> hw_params(priv
).max_data_size
) {
1033 IWL_ERR(priv
, "uCode init data len %Zd too large to fit in\n",
1034 pieces
.init_data_size
);
1038 /* Allocate ucode buffers for card's bus-master loading ... */
1040 /* Runtime instructions and 2 copies of data:
1041 * 1) unmodified from disk
1042 * 2) backup cache for save/restore during power-downs */
1043 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_rt
.code
,
1044 pieces
.inst
, pieces
.inst_size
))
1046 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_rt
.data
,
1047 pieces
.data
, pieces
.data_size
))
1050 /* Initialization instructions and data */
1051 if (pieces
.init_size
&& pieces
.init_data_size
) {
1052 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_init
.code
,
1053 pieces
.init
, pieces
.init_size
))
1055 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_init
.data
,
1056 pieces
.init_data
, pieces
.init_data_size
))
1060 /* WoWLAN instructions and data */
1061 if (pieces
.wowlan_inst_size
&& pieces
.wowlan_data_size
) {
1062 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_wowlan
.code
,
1064 pieces
.wowlan_inst_size
))
1066 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_wowlan
.data
,
1068 pieces
.wowlan_data_size
))
1072 /* Now that we can no longer fail, copy information */
1075 * The (size - 16) / 12 formula is based on the information recorded
1076 * for each event, which is of mode 1 (including timestamp) for all
1077 * new microcodes that include this information.
1079 priv
->init_evtlog_ptr
= pieces
.init_evtlog_ptr
;
1080 if (pieces
.init_evtlog_size
)
1081 priv
->init_evtlog_size
= (pieces
.init_evtlog_size
- 16)/12;
1083 priv
->init_evtlog_size
=
1084 priv
->cfg
->base_params
->max_event_log_size
;
1085 priv
->init_errlog_ptr
= pieces
.init_errlog_ptr
;
1086 priv
->inst_evtlog_ptr
= pieces
.inst_evtlog_ptr
;
1087 if (pieces
.inst_evtlog_size
)
1088 priv
->inst_evtlog_size
= (pieces
.inst_evtlog_size
- 16)/12;
1090 priv
->inst_evtlog_size
=
1091 priv
->cfg
->base_params
->max_event_log_size
;
1092 priv
->inst_errlog_ptr
= pieces
.inst_errlog_ptr
;
1094 priv
->new_scan_threshold_behaviour
=
1095 !!(ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_NEWSCAN
);
1097 if (!(priv
->cfg
->sku
& EEPROM_SKU_CAP_IPAN_ENABLE
))
1098 ucode_capa
.flags
&= ~IWL_UCODE_TLV_FLAGS_PAN
;
1101 * if not PAN, then don't support P2P -- might be a uCode
1102 * packaging bug or due to the eeprom check above
1104 if (!(ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_PAN
))
1105 ucode_capa
.flags
&= ~IWL_UCODE_TLV_FLAGS_P2P
;
1107 if (ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_PAN
) {
1108 priv
->sta_key_max_num
= STA_KEY_MAX_NUM_PAN
;
1109 priv
->shrd
->cmd_queue
= IWL_IPAN_CMD_QUEUE_NUM
;
1111 priv
->sta_key_max_num
= STA_KEY_MAX_NUM
;
1112 priv
->shrd
->cmd_queue
= IWL_DEFAULT_CMD_QUEUE_NUM
;
1116 * figure out the offset of chain noise reset and gain commands
1117 * base on the size of standard phy calibration commands table size
1119 if (ucode_capa
.standard_phy_calibration_size
>
1120 IWL_MAX_PHY_CALIBRATE_TBL_SIZE
)
1121 ucode_capa
.standard_phy_calibration_size
=
1122 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE
;
1124 priv
->phy_calib_chain_noise_reset_cmd
=
1125 ucode_capa
.standard_phy_calibration_size
;
1126 priv
->phy_calib_chain_noise_gain_cmd
=
1127 ucode_capa
.standard_phy_calibration_size
+ 1;
1129 /* initialize all valid contexts */
1130 iwl_init_context(priv
, ucode_capa
.flags
);
1132 /**************************************************
1133 * This is still part of probe() in a sense...
1135 * 9. Setup and register with mac80211 and debugfs
1136 **************************************************/
1137 err
= iwlagn_mac_setup_register(priv
, &ucode_capa
);
1141 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
1143 IWL_ERR(priv
, "failed to create debugfs files. Ignoring error: %d\n", err
);
1145 /* We have our copies now, allow OS release its copies */
1146 release_firmware(ucode_raw
);
1147 complete(&priv
->firmware_loading_complete
);
1151 /* try next, if any */
1152 if (iwl_request_firmware(priv
, false))
1154 release_firmware(ucode_raw
);
1158 IWL_ERR(priv
, "failed to allocate pci memory\n");
1159 iwl_dealloc_ucode(priv
);
1161 complete(&priv
->firmware_loading_complete
);
1162 device_release_driver(bus(priv
)->dev
);
1163 release_firmware(ucode_raw
);
1166 static void iwl_rf_kill_ct_config(struct iwl_priv
*priv
)
1168 struct iwl_ct_kill_config cmd
;
1169 struct iwl_ct_kill_throttling_config adv_cmd
;
1170 unsigned long flags
;
1173 spin_lock_irqsave(&priv
->shrd
->lock
, flags
);
1174 iwl_write32(bus(priv
), CSR_UCODE_DRV_GP1_CLR
,
1175 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
1176 spin_unlock_irqrestore(&priv
->shrd
->lock
, flags
);
1177 priv
->thermal_throttle
.ct_kill_toggle
= false;
1179 if (priv
->cfg
->base_params
->support_ct_kill_exit
) {
1180 adv_cmd
.critical_temperature_enter
=
1181 cpu_to_le32(hw_params(priv
).ct_kill_threshold
);
1182 adv_cmd
.critical_temperature_exit
=
1183 cpu_to_le32(hw_params(priv
).ct_kill_exit_threshold
);
1185 ret
= iwl_trans_send_cmd_pdu(trans(priv
),
1186 REPLY_CT_KILL_CONFIG_CMD
,
1187 CMD_SYNC
, sizeof(adv_cmd
), &adv_cmd
);
1189 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1191 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1192 "succeeded, critical temperature enter is %d,"
1194 hw_params(priv
).ct_kill_threshold
,
1195 hw_params(priv
).ct_kill_exit_threshold
);
1197 cmd
.critical_temperature_R
=
1198 cpu_to_le32(hw_params(priv
).ct_kill_threshold
);
1200 ret
= iwl_trans_send_cmd_pdu(trans(priv
),
1201 REPLY_CT_KILL_CONFIG_CMD
,
1202 CMD_SYNC
, sizeof(cmd
), &cmd
);
1204 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1206 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1208 "critical temperature is %d\n",
1209 hw_params(priv
).ct_kill_threshold
);
1213 static int iwlagn_send_calib_cfg_rt(struct iwl_priv
*priv
, u32 cfg
)
1215 struct iwl_calib_cfg_cmd calib_cfg_cmd
;
1216 struct iwl_host_cmd cmd
= {
1217 .id
= CALIBRATION_CFG_CMD
,
1218 .len
= { sizeof(struct iwl_calib_cfg_cmd
), },
1219 .data
= { &calib_cfg_cmd
, },
1222 memset(&calib_cfg_cmd
, 0, sizeof(calib_cfg_cmd
));
1223 calib_cfg_cmd
.ucd_calib_cfg
.once
.is_enable
= IWL_CALIB_RT_CFG_ALL
;
1224 calib_cfg_cmd
.ucd_calib_cfg
.once
.start
= cpu_to_le32(cfg
);
1226 return iwl_trans_send_cmd(trans(priv
), &cmd
);
1230 static int iwlagn_send_tx_ant_config(struct iwl_priv
*priv
, u8 valid_tx_ant
)
1232 struct iwl_tx_ant_config_cmd tx_ant_cmd
= {
1233 .valid
= cpu_to_le32(valid_tx_ant
),
1236 if (IWL_UCODE_API(priv
->ucode_ver
) > 1) {
1237 IWL_DEBUG_HC(priv
, "select valid tx ant: %u\n", valid_tx_ant
);
1238 return iwl_trans_send_cmd_pdu(trans(priv
),
1239 TX_ANT_CONFIGURATION_CMD
,
1241 sizeof(struct iwl_tx_ant_config_cmd
),
1244 IWL_DEBUG_HC(priv
, "TX_ANT_CONFIGURATION_CMD not supported\n");
1250 * iwl_alive_start - called after REPLY_ALIVE notification received
1251 * from protocol/runtime uCode (initialization uCode's
1252 * Alive gets handled by iwl_init_alive_start()).
1254 int iwl_alive_start(struct iwl_priv
*priv
)
1257 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
1259 /*TODO: this should go to the transport layer */
1260 iwl_reset_ict(trans(priv
));
1262 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
1264 /* After the ALIVE response, we can send host commands to the uCode */
1265 set_bit(STATUS_ALIVE
, &priv
->shrd
->status
);
1267 /* Enable watchdog to monitor the driver tx queues */
1268 iwl_setup_watchdog(priv
);
1270 if (iwl_is_rfkill(priv
->shrd
))
1273 /* download priority table before any calibration request */
1274 if (priv
->cfg
->bt_params
&&
1275 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
1276 /* Configure Bluetooth device coexistence support */
1277 if (priv
->cfg
->bt_params
->bt_sco_disable
)
1278 priv
->bt_enable_pspoll
= false;
1280 priv
->bt_enable_pspoll
= true;
1282 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
1283 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
1284 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
1285 iwlagn_send_advance_bt_config(priv
);
1286 priv
->bt_valid
= IWLAGN_BT_VALID_ENABLE_FLAGS
;
1287 priv
->cur_rssi_ctx
= NULL
;
1289 iwlagn_send_prio_tbl(priv
);
1291 /* FIXME: w/a to force change uCode BT state machine */
1292 ret
= iwlagn_send_bt_env(priv
, IWL_BT_COEX_ENV_OPEN
,
1293 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
1296 ret
= iwlagn_send_bt_env(priv
, IWL_BT_COEX_ENV_CLOSE
,
1297 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
1302 * default is 2-wire BT coexexistence support
1304 iwl_send_bt_config(priv
);
1307 if (hw_params(priv
).calib_rt_cfg
)
1308 iwlagn_send_calib_cfg_rt(priv
,
1309 hw_params(priv
).calib_rt_cfg
);
1311 ieee80211_wake_queues(priv
->hw
);
1313 priv
->active_rate
= IWL_RATES_MASK
;
1315 /* Configure Tx antenna selection based on H/W config */
1316 iwlagn_send_tx_ant_config(priv
, priv
->cfg
->valid_tx_ant
);
1318 if (iwl_is_associated_ctx(ctx
) && !priv
->shrd
->wowlan
) {
1319 struct iwl_rxon_cmd
*active_rxon
=
1320 (struct iwl_rxon_cmd
*)&ctx
->active
;
1321 /* apply any changes in staging */
1322 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
1323 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1325 struct iwl_rxon_context
*tmp
;
1326 /* Initialize our rx_config data */
1327 for_each_context(priv
, tmp
)
1328 iwl_connection_init_rx_config(priv
, tmp
);
1330 iwlagn_set_rxon_chain(priv
, ctx
);
1333 if (!priv
->shrd
->wowlan
) {
1334 /* WoWLAN ucode will not reply in the same way, skip it */
1335 iwl_reset_run_time_calib(priv
);
1338 set_bit(STATUS_READY
, &priv
->shrd
->status
);
1340 /* Configure the adapter for unassociated operation */
1341 ret
= iwlagn_commit_rxon(priv
, ctx
);
1345 /* At this point, the NIC is initialized and operational */
1346 iwl_rf_kill_ct_config(priv
);
1348 IWL_DEBUG_INFO(priv
, "ALIVE processing complete.\n");
1350 return iwl_power_update_mode(priv
, true);
1353 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
);
1355 static void __iwl_down(struct iwl_priv
*priv
)
1359 IWL_DEBUG_INFO(priv
, DRV_NAME
" is going down\n");
1361 iwl_scan_cancel_timeout(priv
, 200);
1364 * If active, scanning won't cancel it, so say it expired.
1365 * No race since we hold the mutex here and a new one
1366 * can't come in at this time.
1368 ieee80211_remain_on_channel_expired(priv
->hw
);
1371 test_and_set_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
1373 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
1374 * to prevent rearm timer */
1375 del_timer_sync(&priv
->watchdog
);
1377 iwl_clear_ucode_stations(priv
, NULL
);
1378 iwl_dealloc_bcast_stations(priv
);
1379 iwl_clear_driver_stations(priv
);
1381 /* reset BT coex data */
1382 priv
->bt_status
= 0;
1383 priv
->cur_rssi_ctx
= NULL
;
1384 priv
->bt_is_sco
= 0;
1385 if (priv
->cfg
->bt_params
)
1386 priv
->bt_traffic_load
=
1387 priv
->cfg
->bt_params
->bt_init_traffic_load
;
1389 priv
->bt_traffic_load
= 0;
1390 priv
->bt_full_concurrent
= false;
1391 priv
->bt_ci_compliance
= 0;
1393 /* Wipe out the EXIT_PENDING status bit if we are not actually
1394 * exiting the module */
1396 clear_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
1398 if (priv
->mac80211_registered
)
1399 ieee80211_stop_queues(priv
->hw
);
1401 iwl_trans_stop_device(trans(priv
));
1403 /* Clear out all status bits but a few that are stable across reset */
1404 priv
->shrd
->status
&=
1405 test_bit(STATUS_RF_KILL_HW
, &priv
->shrd
->status
) <<
1407 test_bit(STATUS_GEO_CONFIGURED
, &priv
->shrd
->status
) <<
1408 STATUS_GEO_CONFIGURED
|
1409 test_bit(STATUS_FW_ERROR
, &priv
->shrd
->status
) <<
1411 test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
) <<
1412 STATUS_EXIT_PENDING
;
1414 dev_kfree_skb(priv
->beacon_skb
);
1415 priv
->beacon_skb
= NULL
;
1418 static void iwl_down(struct iwl_priv
*priv
)
1420 mutex_lock(&priv
->shrd
->mutex
);
1422 mutex_unlock(&priv
->shrd
->mutex
);
1424 iwl_cancel_deferred_work(priv
);
1427 #define MAX_HW_RESTARTS 5
1429 static int __iwl_up(struct iwl_priv
*priv
)
1431 struct iwl_rxon_context
*ctx
;
1434 lockdep_assert_held(&priv
->shrd
->mutex
);
1436 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
)) {
1437 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
1441 for_each_context(priv
, ctx
) {
1442 ret
= iwlagn_alloc_bcast_station(priv
, ctx
);
1444 iwl_dealloc_bcast_stations(priv
);
1449 ret
= iwlagn_run_init_ucode(priv
);
1451 IWL_ERR(priv
, "Failed to run INIT ucode: %d\n", ret
);
1455 ret
= iwlagn_load_ucode_wait_alive(priv
,
1459 IWL_ERR(priv
, "Failed to start RT ucode: %d\n", ret
);
1463 ret
= iwl_alive_start(priv
);
1469 set_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
1471 clear_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
1473 IWL_ERR(priv
, "Unable to initialize device.\n");
1478 /*****************************************************************************
1480 * Workqueue callbacks
1482 *****************************************************************************/
1484 static void iwl_bg_run_time_calib_work(struct work_struct
*work
)
1486 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
1487 run_time_calib_work
);
1489 mutex_lock(&priv
->shrd
->mutex
);
1491 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
) ||
1492 test_bit(STATUS_SCANNING
, &priv
->shrd
->status
)) {
1493 mutex_unlock(&priv
->shrd
->mutex
);
1497 if (priv
->start_calib
) {
1498 iwl_chain_noise_calibration(priv
);
1499 iwl_sensitivity_calibration(priv
);
1502 mutex_unlock(&priv
->shrd
->mutex
);
1505 static void iwlagn_prepare_restart(struct iwl_priv
*priv
)
1507 struct iwl_rxon_context
*ctx
;
1508 bool bt_full_concurrent
;
1509 u8 bt_ci_compliance
;
1514 lockdep_assert_held(&priv
->shrd
->mutex
);
1516 for_each_context(priv
, ctx
)
1521 * __iwl_down() will clear the BT status variables,
1522 * which is correct, but when we restart we really
1523 * want to keep them so restore them afterwards.
1525 * The restart process will later pick them up and
1526 * re-configure the hw when we reconfigure the BT
1529 bt_full_concurrent
= priv
->bt_full_concurrent
;
1530 bt_ci_compliance
= priv
->bt_ci_compliance
;
1531 bt_load
= priv
->bt_traffic_load
;
1532 bt_status
= priv
->bt_status
;
1533 bt_is_sco
= priv
->bt_is_sco
;
1537 priv
->bt_full_concurrent
= bt_full_concurrent
;
1538 priv
->bt_ci_compliance
= bt_ci_compliance
;
1539 priv
->bt_traffic_load
= bt_load
;
1540 priv
->bt_status
= bt_status
;
1541 priv
->bt_is_sco
= bt_is_sco
;
1544 static void iwl_bg_restart(struct work_struct
*data
)
1546 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
1548 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
1551 if (test_and_clear_bit(STATUS_FW_ERROR
, &priv
->shrd
->status
)) {
1552 mutex_lock(&priv
->shrd
->mutex
);
1553 iwlagn_prepare_restart(priv
);
1554 mutex_unlock(&priv
->shrd
->mutex
);
1555 iwl_cancel_deferred_work(priv
);
1556 ieee80211_restart_hw(priv
->hw
);
1562 /*****************************************************************************
1564 * mac80211 entry point functions
1566 *****************************************************************************/
1568 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits
[] = {
1571 .types
= BIT(NL80211_IFTYPE_STATION
),
1575 .types
= BIT(NL80211_IFTYPE_AP
),
1579 static const struct ieee80211_iface_limit iwlagn_2sta_limits
[] = {
1582 .types
= BIT(NL80211_IFTYPE_STATION
),
1586 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits
[] = {
1589 .types
= BIT(NL80211_IFTYPE_STATION
),
1593 .types
= BIT(NL80211_IFTYPE_P2P_GO
) |
1594 BIT(NL80211_IFTYPE_AP
),
1598 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits
[] = {
1601 .types
= BIT(NL80211_IFTYPE_STATION
),
1605 .types
= BIT(NL80211_IFTYPE_P2P_CLIENT
),
1609 static const struct ieee80211_iface_combination
1610 iwlagn_iface_combinations_dualmode
[] = {
1611 { .num_different_channels
= 1,
1612 .max_interfaces
= 2,
1613 .beacon_int_infra_match
= true,
1614 .limits
= iwlagn_sta_ap_limits
,
1615 .n_limits
= ARRAY_SIZE(iwlagn_sta_ap_limits
),
1617 { .num_different_channels
= 1,
1618 .max_interfaces
= 2,
1619 .limits
= iwlagn_2sta_limits
,
1620 .n_limits
= ARRAY_SIZE(iwlagn_2sta_limits
),
1624 static const struct ieee80211_iface_combination
1625 iwlagn_iface_combinations_p2p
[] = {
1626 { .num_different_channels
= 1,
1627 .max_interfaces
= 2,
1628 .beacon_int_infra_match
= true,
1629 .limits
= iwlagn_p2p_sta_go_limits
,
1630 .n_limits
= ARRAY_SIZE(iwlagn_p2p_sta_go_limits
),
1632 { .num_different_channels
= 1,
1633 .max_interfaces
= 2,
1634 .limits
= iwlagn_p2p_2sta_limits
,
1635 .n_limits
= ARRAY_SIZE(iwlagn_p2p_2sta_limits
),
1640 * Not a mac80211 entry point function, but it fits in with all the
1641 * other mac80211 functions grouped here.
1643 static int iwlagn_mac_setup_register(struct iwl_priv
*priv
,
1644 struct iwlagn_ucode_capabilities
*capa
)
1647 struct ieee80211_hw
*hw
= priv
->hw
;
1648 struct iwl_rxon_context
*ctx
;
1650 hw
->rate_control_algorithm
= "iwl-agn-rs";
1652 /* Tell mac80211 our characteristics */
1653 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
1654 IEEE80211_HW_AMPDU_AGGREGATION
|
1655 IEEE80211_HW_NEED_DTIM_PERIOD
|
1656 IEEE80211_HW_SPECTRUM_MGMT
|
1657 IEEE80211_HW_REPORTS_TX_ACK_STATUS
;
1660 * Including the following line will crash some AP's. This
1661 * workaround removes the stimulus which causes the crash until
1662 * the AP software can be fixed.
1663 hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
1666 hw
->flags
|= IEEE80211_HW_SUPPORTS_PS
|
1667 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
;
1669 if (priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
)
1670 hw
->flags
|= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
1671 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
1673 if (capa
->flags
& IWL_UCODE_TLV_FLAGS_MFP
)
1674 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
1676 hw
->sta_data_size
= sizeof(struct iwl_station_priv
);
1677 hw
->vif_data_size
= sizeof(struct iwl_vif_priv
);
1679 for_each_context(priv
, ctx
) {
1680 hw
->wiphy
->interface_modes
|= ctx
->interface_modes
;
1681 hw
->wiphy
->interface_modes
|= ctx
->exclusive_interface_modes
;
1684 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
1686 if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)) {
1687 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_p2p
;
1688 hw
->wiphy
->n_iface_combinations
=
1689 ARRAY_SIZE(iwlagn_iface_combinations_p2p
);
1690 } else if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_AP
)) {
1691 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_dualmode
;
1692 hw
->wiphy
->n_iface_combinations
=
1693 ARRAY_SIZE(iwlagn_iface_combinations_dualmode
);
1696 hw
->wiphy
->max_remain_on_channel_duration
= 1000;
1698 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
|
1699 WIPHY_FLAG_DISABLE_BEACON_HINTS
|
1700 WIPHY_FLAG_IBSS_RSN
;
1702 if (priv
->ucode_wowlan
.code
.len
&& device_can_wakeup(bus(priv
)->dev
)) {
1703 hw
->wiphy
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
1704 WIPHY_WOWLAN_DISCONNECT
|
1705 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
1706 WIPHY_WOWLAN_RFKILL_RELEASE
;
1707 if (!iwlagn_mod_params
.sw_crypto
)
1708 hw
->wiphy
->wowlan
.flags
|=
1709 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
1710 WIPHY_WOWLAN_GTK_REKEY_FAILURE
;
1712 hw
->wiphy
->wowlan
.n_patterns
= IWLAGN_WOWLAN_MAX_PATTERNS
;
1713 hw
->wiphy
->wowlan
.pattern_min_len
=
1714 IWLAGN_WOWLAN_MIN_PATTERN_LEN
;
1715 hw
->wiphy
->wowlan
.pattern_max_len
=
1716 IWLAGN_WOWLAN_MAX_PATTERN_LEN
;
1719 if (iwlagn_mod_params
.power_save
)
1720 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
1722 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
1724 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
1725 /* we create the 802.11 header and a zero-length SSID element */
1726 hw
->wiphy
->max_scan_ie_len
= capa
->max_probe_length
- 24 - 2;
1728 /* Default value; 4 EDCA QOS priorities */
1731 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
1733 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
1734 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
1735 &priv
->bands
[IEEE80211_BAND_2GHZ
];
1736 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
1737 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
1738 &priv
->bands
[IEEE80211_BAND_5GHZ
];
1740 iwl_leds_init(priv
);
1742 ret
= ieee80211_register_hw(priv
->hw
);
1744 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
1747 priv
->mac80211_registered
= 1;
1753 static int iwlagn_mac_start(struct ieee80211_hw
*hw
)
1755 struct iwl_priv
*priv
= hw
->priv
;
1758 IWL_DEBUG_MAC80211(priv
, "enter\n");
1760 /* we should be verifying the device is ready to be opened */
1761 mutex_lock(&priv
->shrd
->mutex
);
1762 ret
= __iwl_up(priv
);
1763 mutex_unlock(&priv
->shrd
->mutex
);
1767 IWL_DEBUG_INFO(priv
, "Start UP work done.\n");
1769 /* Now we should be done, and the READY bit should be set. */
1770 if (WARN_ON(!test_bit(STATUS_READY
, &priv
->shrd
->status
)))
1773 iwlagn_led_enable(priv
);
1776 IWL_DEBUG_MAC80211(priv
, "leave\n");
1780 static void iwlagn_mac_stop(struct ieee80211_hw
*hw
)
1782 struct iwl_priv
*priv
= hw
->priv
;
1784 IWL_DEBUG_MAC80211(priv
, "enter\n");
1793 flush_workqueue(priv
->shrd
->workqueue
);
1795 /* User space software may expect getting rfkill changes
1796 * even if interface is down */
1797 iwl_write32(bus(priv
), CSR_INT
, 0xFFFFFFFF);
1798 iwl_enable_rfkill_int(priv
);
1800 IWL_DEBUG_MAC80211(priv
, "leave\n");
1803 #ifdef CONFIG_PM_SLEEP
1804 static int iwlagn_send_patterns(struct iwl_priv
*priv
,
1805 struct cfg80211_wowlan
*wowlan
)
1807 struct iwlagn_wowlan_patterns_cmd
*pattern_cmd
;
1808 struct iwl_host_cmd cmd
= {
1809 .id
= REPLY_WOWLAN_PATTERNS
,
1810 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
1815 if (!wowlan
->n_patterns
)
1818 cmd
.len
[0] = sizeof(*pattern_cmd
) +
1819 wowlan
->n_patterns
* sizeof(struct iwlagn_wowlan_pattern
);
1821 pattern_cmd
= kmalloc(cmd
.len
[0], GFP_KERNEL
);
1825 pattern_cmd
->n_patterns
= cpu_to_le32(wowlan
->n_patterns
);
1827 for (i
= 0; i
< wowlan
->n_patterns
; i
++) {
1828 int mask_len
= DIV_ROUND_UP(wowlan
->patterns
[i
].pattern_len
, 8);
1830 memcpy(&pattern_cmd
->patterns
[i
].mask
,
1831 wowlan
->patterns
[i
].mask
, mask_len
);
1832 memcpy(&pattern_cmd
->patterns
[i
].pattern
,
1833 wowlan
->patterns
[i
].pattern
,
1834 wowlan
->patterns
[i
].pattern_len
);
1835 pattern_cmd
->patterns
[i
].mask_size
= mask_len
;
1836 pattern_cmd
->patterns
[i
].pattern_size
=
1837 wowlan
->patterns
[i
].pattern_len
;
1840 cmd
.data
[0] = pattern_cmd
;
1841 err
= iwl_trans_send_cmd(trans(priv
), &cmd
);
1847 static void iwlagn_mac_set_rekey_data(struct ieee80211_hw
*hw
,
1848 struct ieee80211_vif
*vif
,
1849 struct cfg80211_gtk_rekey_data
*data
)
1851 struct iwl_priv
*priv
= hw
->priv
;
1853 if (iwlagn_mod_params
.sw_crypto
)
1856 IWL_DEBUG_MAC80211(priv
, "enter\n");
1857 mutex_lock(&priv
->shrd
->mutex
);
1859 if (priv
->contexts
[IWL_RXON_CTX_BSS
].vif
!= vif
)
1862 memcpy(priv
->kek
, data
->kek
, NL80211_KEK_LEN
);
1863 memcpy(priv
->kck
, data
->kck
, NL80211_KCK_LEN
);
1864 priv
->replay_ctr
= cpu_to_le64(be64_to_cpup((__be64
*)&data
->replay_ctr
));
1865 priv
->have_rekey_data
= true;
1868 mutex_unlock(&priv
->shrd
->mutex
);
1869 IWL_DEBUG_MAC80211(priv
, "leave\n");
1872 struct wowlan_key_data
{
1873 struct iwl_rxon_context
*ctx
;
1874 struct iwlagn_wowlan_rsc_tsc_params_cmd
*rsc_tsc
;
1875 struct iwlagn_wowlan_tkip_params_cmd
*tkip
;
1877 bool error
, use_rsc_tsc
, use_tkip
;
1880 #ifdef CONFIG_PM_SLEEP
1881 static void iwlagn_convert_p1k(u16
*p1k
, __le16
*out
)
1885 for (i
= 0; i
< IWLAGN_P1K_SIZE
; i
++)
1886 out
[i
] = cpu_to_le16(p1k
[i
]);
1889 static void iwlagn_wowlan_program_keys(struct ieee80211_hw
*hw
,
1890 struct ieee80211_vif
*vif
,
1891 struct ieee80211_sta
*sta
,
1892 struct ieee80211_key_conf
*key
,
1895 struct iwl_priv
*priv
= hw
->priv
;
1896 struct wowlan_key_data
*data
= _data
;
1897 struct iwl_rxon_context
*ctx
= data
->ctx
;
1898 struct aes_sc
*aes_sc
, *aes_tx_sc
= NULL
;
1899 struct tkip_sc
*tkip_sc
, *tkip_tx_sc
= NULL
;
1900 struct iwlagn_p1k_cache
*rx_p1ks
;
1902 struct ieee80211_key_seq seq
;
1903 u32 cur_rx_iv32
= 0;
1904 u16 p1k
[IWLAGN_P1K_SIZE
];
1907 mutex_lock(&priv
->shrd
->mutex
);
1909 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
1910 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) &&
1911 !sta
&& !ctx
->key_mapping_keys
)
1912 ret
= iwl_set_default_wep_key(priv
, ctx
, key
);
1914 ret
= iwl_set_dynamic_key(priv
, ctx
, key
, sta
);
1917 IWL_ERR(priv
, "Error setting key during suspend!\n");
1921 switch (key
->cipher
) {
1922 case WLAN_CIPHER_SUITE_TKIP
:
1924 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.unicast_rsc
;
1925 tkip_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.tkip
.tsc
;
1927 rx_p1ks
= data
->tkip
->rx_uni
;
1929 ieee80211_get_key_tx_seq(key
, &seq
);
1930 tkip_tx_sc
->iv16
= cpu_to_le16(seq
.tkip
.iv16
);
1931 tkip_tx_sc
->iv32
= cpu_to_le32(seq
.tkip
.iv32
);
1933 ieee80211_get_tkip_p1k_iv(key
, seq
.tkip
.iv32
, p1k
);
1934 iwlagn_convert_p1k(p1k
, data
->tkip
->tx
.p1k
);
1936 memcpy(data
->tkip
->mic_keys
.tx
,
1937 &key
->key
[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY
],
1938 IWLAGN_MIC_KEY_SIZE
);
1940 rx_mic_key
= data
->tkip
->mic_keys
.rx_unicast
;
1942 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.multicast_rsc
;
1943 rx_p1ks
= data
->tkip
->rx_multi
;
1944 rx_mic_key
= data
->tkip
->mic_keys
.rx_mcast
;
1948 * For non-QoS this relies on the fact that both the uCode and
1949 * mac80211 use TID 0 (as they need to to avoid replay attacks)
1950 * for checking the IV in the frames.
1952 for (i
= 0; i
< IWLAGN_NUM_RSC
; i
++) {
1953 ieee80211_get_key_rx_seq(key
, i
, &seq
);
1954 tkip_sc
[i
].iv16
= cpu_to_le16(seq
.tkip
.iv16
);
1955 tkip_sc
[i
].iv32
= cpu_to_le32(seq
.tkip
.iv32
);
1956 /* wrapping isn't allowed, AP must rekey */
1957 if (seq
.tkip
.iv32
> cur_rx_iv32
)
1958 cur_rx_iv32
= seq
.tkip
.iv32
;
1961 ieee80211_get_tkip_rx_p1k(key
, data
->bssid
, cur_rx_iv32
, p1k
);
1962 iwlagn_convert_p1k(p1k
, rx_p1ks
[0].p1k
);
1963 ieee80211_get_tkip_rx_p1k(key
, data
->bssid
,
1964 cur_rx_iv32
+ 1, p1k
);
1965 iwlagn_convert_p1k(p1k
, rx_p1ks
[1].p1k
);
1968 &key
->key
[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
],
1969 IWLAGN_MIC_KEY_SIZE
);
1971 data
->use_tkip
= true;
1972 data
->use_rsc_tsc
= true;
1974 case WLAN_CIPHER_SUITE_CCMP
:
1976 u8
*pn
= seq
.ccmp
.pn
;
1978 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.unicast_rsc
;
1979 aes_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.aes
.tsc
;
1981 ieee80211_get_key_tx_seq(key
, &seq
);
1982 aes_tx_sc
->pn
= cpu_to_le64(
1985 ((u64
)pn
[3] << 16) |
1986 ((u64
)pn
[2] << 24) |
1987 ((u64
)pn
[1] << 32) |
1988 ((u64
)pn
[0] << 40));
1990 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.multicast_rsc
;
1993 * For non-QoS this relies on the fact that both the uCode and
1994 * mac80211 use TID 0 for checking the IV in the frames.
1996 for (i
= 0; i
< IWLAGN_NUM_RSC
; i
++) {
1997 u8
*pn
= seq
.ccmp
.pn
;
1999 ieee80211_get_key_rx_seq(key
, i
, &seq
);
2000 aes_sc
->pn
= cpu_to_le64(
2003 ((u64
)pn
[3] << 16) |
2004 ((u64
)pn
[2] << 24) |
2005 ((u64
)pn
[1] << 32) |
2006 ((u64
)pn
[0] << 40));
2008 data
->use_rsc_tsc
= true;
2012 mutex_unlock(&priv
->shrd
->mutex
);
2015 static int iwlagn_mac_suspend(struct ieee80211_hw
*hw
,
2016 struct cfg80211_wowlan
*wowlan
)
2018 struct iwl_priv
*priv
= hw
->priv
;
2019 struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd
;
2020 struct iwl_rxon_cmd rxon
;
2021 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2022 struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd
;
2023 struct iwlagn_wowlan_tkip_params_cmd tkip_cmd
= {};
2024 struct wowlan_key_data key_data
= {
2026 .bssid
= ctx
->active
.bssid_addr
,
2027 .use_rsc_tsc
= false,
2034 if (WARN_ON(!wowlan
))
2037 IWL_DEBUG_MAC80211(priv
, "enter\n");
2038 mutex_lock(&priv
->shrd
->mutex
);
2040 /* Don't attempt WoWLAN when not associated, tear down instead. */
2041 if (!ctx
->vif
|| ctx
->vif
->type
!= NL80211_IFTYPE_STATION
||
2042 !iwl_is_associated_ctx(ctx
)) {
2047 key_data
.rsc_tsc
= kzalloc(sizeof(*key_data
.rsc_tsc
), GFP_KERNEL
);
2048 if (!key_data
.rsc_tsc
) {
2053 memset(&wakeup_filter_cmd
, 0, sizeof(wakeup_filter_cmd
));
2056 * We know the last used seqno, and the uCode expects to know that
2057 * one, it will increment before TX.
2059 seq
= le16_to_cpu(priv
->last_seq_ctl
) & IEEE80211_SCTL_SEQ
;
2060 wakeup_filter_cmd
.non_qos_seq
= cpu_to_le16(seq
);
2063 * For QoS counters, we store the one to use next, so subtract 0x10
2064 * since the uCode will add 0x10 before using the value.
2066 for (i
= 0; i
< 8; i
++) {
2067 seq
= priv
->shrd
->tid_data
[IWL_AP_ID
][i
].seq_number
;
2069 wakeup_filter_cmd
.qos_seq
[i
] = cpu_to_le16(seq
);
2072 if (wowlan
->disconnect
)
2073 wakeup_filter_cmd
.enabled
|=
2074 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS
|
2075 IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE
);
2076 if (wowlan
->magic_pkt
)
2077 wakeup_filter_cmd
.enabled
|=
2078 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET
);
2079 if (wowlan
->gtk_rekey_failure
)
2080 wakeup_filter_cmd
.enabled
|=
2081 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL
);
2082 if (wowlan
->eap_identity_req
)
2083 wakeup_filter_cmd
.enabled
|=
2084 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ
);
2085 if (wowlan
->four_way_handshake
)
2086 wakeup_filter_cmd
.enabled
|=
2087 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE
);
2088 if (wowlan
->rfkill_release
)
2089 wakeup_filter_cmd
.enabled
|=
2090 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_RFKILL
);
2091 if (wowlan
->n_patterns
)
2092 wakeup_filter_cmd
.enabled
|=
2093 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH
);
2095 iwl_scan_cancel_timeout(priv
, 200);
2097 memcpy(&rxon
, &ctx
->active
, sizeof(rxon
));
2099 iwl_trans_stop_device(trans(priv
));
2101 priv
->shrd
->wowlan
= true;
2103 ret
= iwlagn_load_ucode_wait_alive(priv
, &priv
->ucode_wowlan
,
2108 /* now configure WoWLAN ucode */
2109 ret
= iwl_alive_start(priv
);
2113 memcpy(&ctx
->staging
, &rxon
, sizeof(rxon
));
2114 ret
= iwlagn_commit_rxon(priv
, ctx
);
2118 ret
= iwl_power_update_mode(priv
, true);
2122 if (!iwlagn_mod_params
.sw_crypto
) {
2123 /* mark all keys clear */
2124 priv
->ucode_key_table
= 0;
2125 ctx
->key_mapping_keys
= 0;
2128 * This needs to be unlocked due to lock ordering
2129 * constraints. Since we're in the suspend path
2130 * that isn't really a problem though.
2132 mutex_unlock(&priv
->shrd
->mutex
);
2133 ieee80211_iter_keys(priv
->hw
, ctx
->vif
,
2134 iwlagn_wowlan_program_keys
,
2136 mutex_lock(&priv
->shrd
->mutex
);
2137 if (key_data
.error
) {
2142 if (key_data
.use_rsc_tsc
) {
2143 struct iwl_host_cmd rsc_tsc_cmd
= {
2144 .id
= REPLY_WOWLAN_TSC_RSC_PARAMS
,
2146 .data
[0] = key_data
.rsc_tsc
,
2147 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
2148 .len
[0] = sizeof(*key_data
.rsc_tsc
),
2151 ret
= iwl_trans_send_cmd(trans(priv
), &rsc_tsc_cmd
);
2156 if (key_data
.use_tkip
) {
2157 ret
= iwl_trans_send_cmd_pdu(trans(priv
),
2158 REPLY_WOWLAN_TKIP_PARAMS
,
2159 CMD_SYNC
, sizeof(tkip_cmd
),
2165 if (priv
->have_rekey_data
) {
2166 memset(&kek_kck_cmd
, 0, sizeof(kek_kck_cmd
));
2167 memcpy(kek_kck_cmd
.kck
, priv
->kck
, NL80211_KCK_LEN
);
2168 kek_kck_cmd
.kck_len
= cpu_to_le16(NL80211_KCK_LEN
);
2169 memcpy(kek_kck_cmd
.kek
, priv
->kek
, NL80211_KEK_LEN
);
2170 kek_kck_cmd
.kek_len
= cpu_to_le16(NL80211_KEK_LEN
);
2171 kek_kck_cmd
.replay_ctr
= priv
->replay_ctr
;
2173 ret
= iwl_trans_send_cmd_pdu(trans(priv
),
2174 REPLY_WOWLAN_KEK_KCK_MATERIAL
,
2175 CMD_SYNC
, sizeof(kek_kck_cmd
),
2182 ret
= iwl_trans_send_cmd_pdu(trans(priv
), REPLY_WOWLAN_WAKEUP_FILTER
,
2183 CMD_SYNC
, sizeof(wakeup_filter_cmd
),
2184 &wakeup_filter_cmd
);
2188 ret
= iwlagn_send_patterns(priv
, wowlan
);
2192 device_set_wakeup_enable(bus(priv
)->dev
, true);
2194 /* Now let the ucode operate on its own */
2195 iwl_write32(bus(priv
), CSR_UCODE_DRV_GP1_SET
,
2196 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE
);
2201 priv
->shrd
->wowlan
= false;
2202 iwlagn_prepare_restart(priv
);
2203 ieee80211_restart_hw(priv
->hw
);
2205 mutex_unlock(&priv
->shrd
->mutex
);
2206 kfree(key_data
.rsc_tsc
);
2207 IWL_DEBUG_MAC80211(priv
, "leave\n");
2212 static int iwlagn_mac_resume(struct ieee80211_hw
*hw
)
2214 struct iwl_priv
*priv
= hw
->priv
;
2215 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2216 struct ieee80211_vif
*vif
;
2217 unsigned long flags
;
2218 u32 base
, status
= 0xffffffff;
2221 IWL_DEBUG_MAC80211(priv
, "enter\n");
2222 mutex_lock(&priv
->shrd
->mutex
);
2224 iwl_write32(bus(priv
), CSR_UCODE_DRV_GP1_CLR
,
2225 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE
);
2227 base
= priv
->device_pointers
.error_event_table
;
2228 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
2229 spin_lock_irqsave(&bus(priv
)->reg_lock
, flags
);
2230 ret
= iwl_grab_nic_access_silent(bus(priv
));
2232 iwl_write32(bus(priv
), HBUS_TARG_MEM_RADDR
, base
);
2233 status
= iwl_read32(bus(priv
), HBUS_TARG_MEM_RDAT
);
2234 iwl_release_nic_access(bus(priv
));
2236 spin_unlock_irqrestore(&bus(priv
)->reg_lock
, flags
);
2238 #ifdef CONFIG_IWLWIFI_DEBUGFS
2240 if (!priv
->wowlan_sram
)
2242 kzalloc(priv
->ucode_wowlan
.data
.len
,
2245 if (priv
->wowlan_sram
)
2246 _iwl_read_targ_mem_words(
2247 bus(priv
), 0x800000, priv
->wowlan_sram
,
2248 priv
->ucode_wowlan
.data
.len
/ 4);
2253 /* we'll clear ctx->vif during iwlagn_prepare_restart() */
2256 priv
->shrd
->wowlan
= false;
2258 device_set_wakeup_enable(bus(priv
)->dev
, false);
2260 iwlagn_prepare_restart(priv
);
2262 memset((void *)&ctx
->active
, 0, sizeof(ctx
->active
));
2263 iwl_connection_init_rx_config(priv
, ctx
);
2264 iwlagn_set_rxon_chain(priv
, ctx
);
2266 mutex_unlock(&priv
->shrd
->mutex
);
2267 IWL_DEBUG_MAC80211(priv
, "leave\n");
2269 ieee80211_resume_disconnect(vif
);
2275 static void iwlagn_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
2277 struct iwl_priv
*priv
= hw
->priv
;
2279 IWL_DEBUG_MACDUMP(priv
, "enter\n");
2281 IWL_DEBUG_TX(priv
, "dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
2282 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
2284 if (iwlagn_tx_skb(priv
, skb
))
2285 dev_kfree_skb_any(skb
);
2287 IWL_DEBUG_MACDUMP(priv
, "leave\n");
2290 static void iwlagn_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2291 struct ieee80211_vif
*vif
,
2292 struct ieee80211_key_conf
*keyconf
,
2293 struct ieee80211_sta
*sta
,
2294 u32 iv32
, u16
*phase1key
)
2296 struct iwl_priv
*priv
= hw
->priv
;
2298 iwl_update_tkip_key(priv
, vif
, keyconf
, sta
, iv32
, phase1key
);
2301 static int iwlagn_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
2302 struct ieee80211_vif
*vif
,
2303 struct ieee80211_sta
*sta
,
2304 struct ieee80211_key_conf
*key
)
2306 struct iwl_priv
*priv
= hw
->priv
;
2307 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2308 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
2310 bool is_default_wep_key
= false;
2312 IWL_DEBUG_MAC80211(priv
, "enter\n");
2314 if (iwlagn_mod_params
.sw_crypto
) {
2315 IWL_DEBUG_MAC80211(priv
, "leave - hwcrypto disabled\n");
2319 switch (key
->cipher
) {
2320 case WLAN_CIPHER_SUITE_TKIP
:
2321 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
2323 case WLAN_CIPHER_SUITE_CCMP
:
2324 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
2331 * We could program these keys into the hardware as well, but we
2332 * don't expect much multicast traffic in IBSS and having keys
2333 * for more stations is probably more useful.
2335 * Mark key TX-only and return 0.
2337 if (vif
->type
== NL80211_IFTYPE_ADHOC
&&
2338 !(key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)) {
2339 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
2343 /* If they key was TX-only, accept deletion */
2344 if (cmd
== DISABLE_KEY
&& key
->hw_key_idx
== WEP_INVALID_OFFSET
)
2347 mutex_lock(&priv
->shrd
->mutex
);
2348 iwl_scan_cancel_timeout(priv
, 100);
2350 BUILD_BUG_ON(WEP_INVALID_OFFSET
== IWLAGN_HW_KEY_DEFAULT
);
2353 * If we are getting WEP group key and we didn't receive any key mapping
2354 * so far, we are in legacy wep mode (group key only), otherwise we are
2356 * In legacy wep mode, we use another host command to the uCode.
2358 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
2359 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) && !sta
) {
2361 is_default_wep_key
= !ctx
->key_mapping_keys
;
2363 is_default_wep_key
=
2364 key
->hw_key_idx
== IWLAGN_HW_KEY_DEFAULT
;
2370 if (is_default_wep_key
) {
2371 ret
= iwl_set_default_wep_key(priv
, vif_priv
->ctx
, key
);
2374 ret
= iwl_set_dynamic_key(priv
, vif_priv
->ctx
, key
, sta
);
2377 * can't add key for RX, but we don't need it
2378 * in the device for TX so still return 0
2381 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
2384 IWL_DEBUG_MAC80211(priv
, "enable hwcrypto key\n");
2387 if (is_default_wep_key
)
2388 ret
= iwl_remove_default_wep_key(priv
, ctx
, key
);
2390 ret
= iwl_remove_dynamic_key(priv
, ctx
, key
, sta
);
2392 IWL_DEBUG_MAC80211(priv
, "disable hwcrypto key\n");
2398 mutex_unlock(&priv
->shrd
->mutex
);
2399 IWL_DEBUG_MAC80211(priv
, "leave\n");
2404 static int iwlagn_mac_ampdu_action(struct ieee80211_hw
*hw
,
2405 struct ieee80211_vif
*vif
,
2406 enum ieee80211_ampdu_mlme_action action
,
2407 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
2410 struct iwl_priv
*priv
= hw
->priv
;
2412 struct iwl_station_priv
*sta_priv
= (void *) sta
->drv_priv
;
2413 struct iwl_rxon_context
*ctx
= iwl_rxon_ctx_from_vif(vif
);
2415 IWL_DEBUG_HT(priv
, "A-MPDU action on addr %pM tid %d\n",
2418 if (!(priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
))
2421 IWL_DEBUG_MAC80211(priv
, "enter\n");
2422 mutex_lock(&priv
->shrd
->mutex
);
2425 case IEEE80211_AMPDU_RX_START
:
2426 IWL_DEBUG_HT(priv
, "start Rx\n");
2427 ret
= iwl_sta_rx_agg_start(priv
, sta
, tid
, *ssn
);
2429 case IEEE80211_AMPDU_RX_STOP
:
2430 IWL_DEBUG_HT(priv
, "stop Rx\n");
2431 ret
= iwl_sta_rx_agg_stop(priv
, sta
, tid
);
2432 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
2435 case IEEE80211_AMPDU_TX_START
:
2436 IWL_DEBUG_HT(priv
, "start Tx\n");
2437 ret
= iwlagn_tx_agg_start(priv
, vif
, sta
, tid
, ssn
);
2439 case IEEE80211_AMPDU_TX_STOP
:
2440 IWL_DEBUG_HT(priv
, "stop Tx\n");
2441 ret
= iwlagn_tx_agg_stop(priv
, vif
, sta
, tid
);
2442 if ((ret
== 0) && (priv
->agg_tids_count
> 0)) {
2443 priv
->agg_tids_count
--;
2444 IWL_DEBUG_HT(priv
, "priv->agg_tids_count = %u\n",
2445 priv
->agg_tids_count
);
2447 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
2449 if (!priv
->agg_tids_count
&& priv
->cfg
->ht_params
&&
2450 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
2452 * switch off RTS/CTS if it was previously enabled
2454 sta_priv
->lq_sta
.lq
.general_params
.flags
&=
2455 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
2456 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
2457 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
2460 case IEEE80211_AMPDU_TX_OPERATIONAL
:
2461 buf_size
= min_t(int, buf_size
, LINK_QUAL_AGG_FRAME_LIMIT_DEF
);
2463 iwl_trans_tx_agg_setup(trans(priv
), ctx
->ctxid
, iwl_sta_id(sta
),
2467 * If the limit is 0, then it wasn't initialised yet,
2468 * use the default. We can do that since we take the
2469 * minimum below, and we don't want to go above our
2470 * default due to hardware restrictions.
2472 if (sta_priv
->max_agg_bufsize
== 0)
2473 sta_priv
->max_agg_bufsize
=
2474 LINK_QUAL_AGG_FRAME_LIMIT_DEF
;
2477 * Even though in theory the peer could have different
2478 * aggregation reorder buffer sizes for different sessions,
2479 * our ucode doesn't allow for that and has a global limit
2480 * for each station. Therefore, use the minimum of all the
2481 * aggregation sessions and our default value.
2483 sta_priv
->max_agg_bufsize
=
2484 min(sta_priv
->max_agg_bufsize
, buf_size
);
2486 if (priv
->cfg
->ht_params
&&
2487 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
2489 * switch to RTS/CTS if it is the prefer protection
2490 * method for HT traffic
2493 sta_priv
->lq_sta
.lq
.general_params
.flags
|=
2494 LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
2496 priv
->agg_tids_count
++;
2497 IWL_DEBUG_HT(priv
, "priv->agg_tids_count = %u\n",
2498 priv
->agg_tids_count
);
2500 sta_priv
->lq_sta
.lq
.agg_params
.agg_frame_cnt_limit
=
2501 sta_priv
->max_agg_bufsize
;
2503 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
2504 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
2506 IWL_INFO(priv
, "Tx aggregation enabled on ra = %pM tid = %d\n",
2511 mutex_unlock(&priv
->shrd
->mutex
);
2512 IWL_DEBUG_MAC80211(priv
, "leave\n");
2516 static int iwlagn_mac_sta_add(struct ieee80211_hw
*hw
,
2517 struct ieee80211_vif
*vif
,
2518 struct ieee80211_sta
*sta
)
2520 struct iwl_priv
*priv
= hw
->priv
;
2521 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
2522 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2523 bool is_ap
= vif
->type
== NL80211_IFTYPE_STATION
;
2527 IWL_DEBUG_MAC80211(priv
, "received request to add station %pM\n",
2529 mutex_lock(&priv
->shrd
->mutex
);
2530 IWL_DEBUG_INFO(priv
, "proceeding to add station %pM\n",
2532 sta_priv
->sta_id
= IWL_INVALID_STATION
;
2534 atomic_set(&sta_priv
->pending_frames
, 0);
2535 if (vif
->type
== NL80211_IFTYPE_AP
)
2536 sta_priv
->client
= true;
2538 ret
= iwl_add_station_common(priv
, vif_priv
->ctx
, sta
->addr
,
2539 is_ap
, sta
, &sta_id
);
2541 IWL_ERR(priv
, "Unable to add station %pM (%d)\n",
2543 /* Should we return success if return code is EEXIST ? */
2547 sta_priv
->sta_id
= sta_id
;
2549 /* Initialize rate scaling */
2550 IWL_DEBUG_INFO(priv
, "Initializing rate scaling for station %pM\n",
2552 iwl_rs_rate_init(priv
, sta
, sta_id
);
2554 mutex_unlock(&priv
->shrd
->mutex
);
2555 IWL_DEBUG_MAC80211(priv
, "leave\n");
2560 static void iwlagn_mac_channel_switch(struct ieee80211_hw
*hw
,
2561 struct ieee80211_channel_switch
*ch_switch
)
2563 struct iwl_priv
*priv
= hw
->priv
;
2564 const struct iwl_channel_info
*ch_info
;
2565 struct ieee80211_conf
*conf
= &hw
->conf
;
2566 struct ieee80211_channel
*channel
= ch_switch
->channel
;
2567 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
2570 * When we add support for multiple interfaces, we need to
2571 * revisit this. The channel switch command in the device
2572 * only affects the BSS context, but what does that really
2573 * mean? And what if we get a CSA on the second interface?
2574 * This needs a lot of work.
2576 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2579 IWL_DEBUG_MAC80211(priv
, "enter\n");
2581 mutex_lock(&priv
->shrd
->mutex
);
2583 if (iwl_is_rfkill(priv
->shrd
))
2586 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
) ||
2587 test_bit(STATUS_SCANNING
, &priv
->shrd
->status
) ||
2588 test_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
))
2591 if (!iwl_is_associated_ctx(ctx
))
2594 if (!priv
->cfg
->lib
->set_channel_switch
)
2597 ch
= channel
->hw_value
;
2598 if (le16_to_cpu(ctx
->active
.channel
) == ch
)
2601 ch_info
= iwl_get_channel_info(priv
, channel
->band
, ch
);
2602 if (!is_channel_valid(ch_info
)) {
2603 IWL_DEBUG_MAC80211(priv
, "invalid channel\n");
2607 spin_lock_irq(&priv
->shrd
->lock
);
2609 priv
->current_ht_config
.smps
= conf
->smps_mode
;
2611 /* Configure HT40 channels */
2612 ctx
->ht
.enabled
= conf_is_ht(conf
);
2613 if (ctx
->ht
.enabled
)
2614 iwlagn_config_ht40(conf
, ctx
);
2616 ctx
->ht
.is_40mhz
= false;
2618 if ((le16_to_cpu(ctx
->staging
.channel
) != ch
))
2619 ctx
->staging
.flags
= 0;
2621 iwl_set_rxon_channel(priv
, channel
, ctx
);
2622 iwl_set_rxon_ht(priv
, ht_conf
);
2623 iwl_set_flags_for_band(priv
, ctx
, channel
->band
, ctx
->vif
);
2625 spin_unlock_irq(&priv
->shrd
->lock
);
2629 * at this point, staging_rxon has the
2630 * configuration for channel switch
2632 set_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
);
2633 priv
->switch_channel
= cpu_to_le16(ch
);
2634 if (priv
->cfg
->lib
->set_channel_switch(priv
, ch_switch
)) {
2635 clear_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
);
2636 priv
->switch_channel
= 0;
2637 ieee80211_chswitch_done(ctx
->vif
, false);
2641 mutex_unlock(&priv
->shrd
->mutex
);
2642 IWL_DEBUG_MAC80211(priv
, "leave\n");
2645 static void iwlagn_configure_filter(struct ieee80211_hw
*hw
,
2646 unsigned int changed_flags
,
2647 unsigned int *total_flags
,
2650 struct iwl_priv
*priv
= hw
->priv
;
2651 __le32 filter_or
= 0, filter_nand
= 0;
2652 struct iwl_rxon_context
*ctx
;
2654 #define CHK(test, flag) do { \
2655 if (*total_flags & (test)) \
2656 filter_or |= (flag); \
2658 filter_nand |= (flag); \
2661 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
2662 changed_flags
, *total_flags
);
2664 CHK(FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
, RXON_FILTER_PROMISC_MSK
);
2665 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
2666 CHK(FIF_CONTROL
, RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_PROMISC_MSK
);
2667 CHK(FIF_BCN_PRBRESP_PROMISC
, RXON_FILTER_BCON_AWARE_MSK
);
2671 mutex_lock(&priv
->shrd
->mutex
);
2673 for_each_context(priv
, ctx
) {
2674 ctx
->staging
.filter_flags
&= ~filter_nand
;
2675 ctx
->staging
.filter_flags
|= filter_or
;
2678 * Not committing directly because hardware can perform a scan,
2679 * but we'll eventually commit the filter flags change anyway.
2683 mutex_unlock(&priv
->shrd
->mutex
);
2686 * Receiving all multicast frames is always enabled by the
2687 * default flags setup in iwl_connection_init_rx_config()
2688 * since we currently do not support programming multicast
2689 * filters into the device.
2691 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
2692 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
2695 static void iwlagn_mac_flush(struct ieee80211_hw
*hw
, bool drop
)
2697 struct iwl_priv
*priv
= hw
->priv
;
2699 mutex_lock(&priv
->shrd
->mutex
);
2700 IWL_DEBUG_MAC80211(priv
, "enter\n");
2702 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
)) {
2703 IWL_DEBUG_TX(priv
, "Aborting flush due to device shutdown\n");
2706 if (iwl_is_rfkill(priv
->shrd
)) {
2707 IWL_DEBUG_TX(priv
, "Aborting flush due to RF Kill\n");
2712 * mac80211 will not push any more frames for transmit
2713 * until the flush is completed
2716 IWL_DEBUG_MAC80211(priv
, "send flush command\n");
2717 if (iwlagn_txfifo_flush(priv
, IWL_DROP_ALL
)) {
2718 IWL_ERR(priv
, "flush request fail\n");
2722 IWL_DEBUG_MAC80211(priv
, "wait transmit/flush all frames\n");
2723 iwl_trans_wait_tx_queue_empty(trans(priv
));
2725 mutex_unlock(&priv
->shrd
->mutex
);
2726 IWL_DEBUG_MAC80211(priv
, "leave\n");
2729 void iwlagn_disable_roc(struct iwl_priv
*priv
)
2731 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
2733 lockdep_assert_held(&priv
->shrd
->mutex
);
2735 if (!priv
->hw_roc_setup
)
2738 ctx
->staging
.dev_type
= RXON_DEV_TYPE_P2P
;
2739 ctx
->staging
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2741 priv
->hw_roc_channel
= NULL
;
2743 memset(ctx
->staging
.node_addr
, 0, ETH_ALEN
);
2745 iwlagn_commit_rxon(priv
, ctx
);
2747 ctx
->is_active
= false;
2748 priv
->hw_roc_setup
= false;
2751 static void iwlagn_disable_roc_work(struct work_struct
*work
)
2753 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
2754 hw_roc_disable_work
.work
);
2756 mutex_lock(&priv
->shrd
->mutex
);
2757 iwlagn_disable_roc(priv
);
2758 mutex_unlock(&priv
->shrd
->mutex
);
2761 static int iwlagn_mac_remain_on_channel(struct ieee80211_hw
*hw
,
2762 struct ieee80211_channel
*channel
,
2763 enum nl80211_channel_type channel_type
,
2766 struct iwl_priv
*priv
= hw
->priv
;
2767 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
2770 if (!(priv
->shrd
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
2773 if (!(ctx
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)))
2776 IWL_DEBUG_MAC80211(priv
, "enter\n");
2777 mutex_lock(&priv
->shrd
->mutex
);
2779 if (test_bit(STATUS_SCAN_HW
, &priv
->shrd
->status
)) {
2784 priv
->hw_roc_channel
= channel
;
2785 priv
->hw_roc_chantype
= channel_type
;
2786 priv
->hw_roc_duration
= duration
;
2787 priv
->hw_roc_start_notified
= false;
2788 cancel_delayed_work(&priv
->hw_roc_disable_work
);
2790 if (!ctx
->is_active
) {
2791 ctx
->is_active
= true;
2792 ctx
->staging
.dev_type
= RXON_DEV_TYPE_P2P
;
2793 memcpy(ctx
->staging
.node_addr
,
2794 priv
->contexts
[IWL_RXON_CTX_BSS
].staging
.node_addr
,
2796 memcpy(ctx
->staging
.bssid_addr
,
2797 priv
->contexts
[IWL_RXON_CTX_BSS
].staging
.node_addr
,
2799 err
= iwlagn_commit_rxon(priv
, ctx
);
2802 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
|
2803 RXON_FILTER_PROMISC_MSK
|
2804 RXON_FILTER_CTL2HOST_MSK
;
2806 err
= iwlagn_commit_rxon(priv
, ctx
);
2808 iwlagn_disable_roc(priv
);
2811 priv
->hw_roc_setup
= true;
2814 err
= iwl_scan_initiate(priv
, ctx
->vif
, IWL_SCAN_ROC
, channel
->band
);
2816 iwlagn_disable_roc(priv
);
2819 mutex_unlock(&priv
->shrd
->mutex
);
2820 IWL_DEBUG_MAC80211(priv
, "leave\n");
2825 static int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw
*hw
)
2827 struct iwl_priv
*priv
= hw
->priv
;
2829 if (!(priv
->shrd
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
2832 IWL_DEBUG_MAC80211(priv
, "enter\n");
2833 mutex_lock(&priv
->shrd
->mutex
);
2834 iwl_scan_cancel_timeout(priv
, priv
->hw_roc_duration
);
2835 iwlagn_disable_roc(priv
);
2836 mutex_unlock(&priv
->shrd
->mutex
);
2837 IWL_DEBUG_MAC80211(priv
, "leave\n");
2842 static int iwlagn_mac_tx_sync(struct ieee80211_hw
*hw
,
2843 struct ieee80211_vif
*vif
,
2845 enum ieee80211_tx_sync_type type
)
2847 struct iwl_priv
*priv
= hw
->priv
;
2848 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2849 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
2853 IWL_DEBUG_MAC80211(priv
, "enter\n");
2854 mutex_lock(&priv
->shrd
->mutex
);
2856 if (iwl_is_associated_ctx(ctx
)) {
2861 if (ctx
->preauth_bssid
|| test_bit(STATUS_SCAN_HW
, &priv
->shrd
->status
)) {
2866 ret
= iwl_add_station_common(priv
, ctx
, bssid
, true, NULL
, &sta_id
);
2870 if (WARN_ON(sta_id
!= ctx
->ap_sta_id
)) {
2872 goto out_remove_sta
;
2875 memcpy(ctx
->bssid
, bssid
, ETH_ALEN
);
2876 ctx
->preauth_bssid
= true;
2878 ret
= iwlagn_commit_rxon(priv
, ctx
);
2884 iwl_remove_station(priv
, sta_id
, bssid
);
2886 mutex_unlock(&priv
->shrd
->mutex
);
2887 IWL_DEBUG_MAC80211(priv
, "leave\n");
2892 static void iwlagn_mac_finish_tx_sync(struct ieee80211_hw
*hw
,
2893 struct ieee80211_vif
*vif
,
2895 enum ieee80211_tx_sync_type type
)
2897 struct iwl_priv
*priv
= hw
->priv
;
2898 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2899 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
2901 IWL_DEBUG_MAC80211(priv
, "enter\n");
2902 mutex_lock(&priv
->shrd
->mutex
);
2904 if (iwl_is_associated_ctx(ctx
))
2907 iwl_remove_station(priv
, ctx
->ap_sta_id
, bssid
);
2908 ctx
->preauth_bssid
= false;
2909 /* no need to commit */
2911 mutex_unlock(&priv
->shrd
->mutex
);
2912 IWL_DEBUG_MAC80211(priv
, "leave\n");
2915 /*****************************************************************************
2917 * driver setup and teardown
2919 *****************************************************************************/
2921 static void iwl_setup_deferred_work(struct iwl_priv
*priv
)
2923 priv
->shrd
->workqueue
= create_singlethread_workqueue(DRV_NAME
);
2925 init_waitqueue_head(&priv
->shrd
->wait_command_queue
);
2927 INIT_WORK(&priv
->restart
, iwl_bg_restart
);
2928 INIT_WORK(&priv
->beacon_update
, iwl_bg_beacon_update
);
2929 INIT_WORK(&priv
->run_time_calib_work
, iwl_bg_run_time_calib_work
);
2930 INIT_WORK(&priv
->tx_flush
, iwl_bg_tx_flush
);
2931 INIT_WORK(&priv
->bt_full_concurrency
, iwl_bg_bt_full_concurrency
);
2932 INIT_WORK(&priv
->bt_runtime_config
, iwl_bg_bt_runtime_config
);
2933 INIT_DELAYED_WORK(&priv
->hw_roc_disable_work
,
2934 iwlagn_disable_roc_work
);
2936 iwl_setup_scan_deferred_work(priv
);
2938 if (priv
->cfg
->lib
->bt_setup_deferred_work
)
2939 priv
->cfg
->lib
->bt_setup_deferred_work(priv
);
2941 init_timer(&priv
->statistics_periodic
);
2942 priv
->statistics_periodic
.data
= (unsigned long)priv
;
2943 priv
->statistics_periodic
.function
= iwl_bg_statistics_periodic
;
2945 init_timer(&priv
->ucode_trace
);
2946 priv
->ucode_trace
.data
= (unsigned long)priv
;
2947 priv
->ucode_trace
.function
= iwl_bg_ucode_trace
;
2949 init_timer(&priv
->watchdog
);
2950 priv
->watchdog
.data
= (unsigned long)priv
;
2951 priv
->watchdog
.function
= iwl_bg_watchdog
;
2954 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
)
2956 if (priv
->cfg
->lib
->cancel_deferred_work
)
2957 priv
->cfg
->lib
->cancel_deferred_work(priv
);
2959 cancel_work_sync(&priv
->run_time_calib_work
);
2960 cancel_work_sync(&priv
->beacon_update
);
2962 iwl_cancel_scan_deferred_work(priv
);
2964 cancel_work_sync(&priv
->bt_full_concurrency
);
2965 cancel_work_sync(&priv
->bt_runtime_config
);
2966 cancel_delayed_work_sync(&priv
->hw_roc_disable_work
);
2968 del_timer_sync(&priv
->statistics_periodic
);
2969 del_timer_sync(&priv
->ucode_trace
);
2972 static void iwl_init_hw_rates(struct iwl_priv
*priv
,
2973 struct ieee80211_rate
*rates
)
2977 for (i
= 0; i
< IWL_RATE_COUNT_LEGACY
; i
++) {
2978 rates
[i
].bitrate
= iwl_rates
[i
].ieee
* 5;
2979 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
2980 rates
[i
].hw_value_short
= i
;
2982 if ((i
>= IWL_FIRST_CCK_RATE
) && (i
<= IWL_LAST_CCK_RATE
)) {
2984 * If CCK != 1M then set short preamble rate flag.
2987 (iwl_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
2988 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
2993 static int iwl_init_drv(struct iwl_priv
*priv
)
2997 spin_lock_init(&priv
->shrd
->sta_lock
);
2999 mutex_init(&priv
->shrd
->mutex
);
3001 priv
->ieee_channels
= NULL
;
3002 priv
->ieee_rates
= NULL
;
3003 priv
->band
= IEEE80211_BAND_2GHZ
;
3005 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
3006 priv
->current_ht_config
.smps
= IEEE80211_SMPS_STATIC
;
3007 priv
->missed_beacon_threshold
= IWL_MISSED_BEACON_THRESHOLD_DEF
;
3008 priv
->agg_tids_count
= 0;
3010 /* initialize force reset */
3011 priv
->force_reset
[IWL_RF_RESET
].reset_duration
=
3012 IWL_DELAY_NEXT_FORCE_RF_RESET
;
3013 priv
->force_reset
[IWL_FW_RESET
].reset_duration
=
3014 IWL_DELAY_NEXT_FORCE_FW_RELOAD
;
3016 priv
->rx_statistics_jiffies
= jiffies
;
3018 /* Choose which receivers/antennas to use */
3019 iwlagn_set_rxon_chain(priv
, &priv
->contexts
[IWL_RXON_CTX_BSS
]);
3021 iwl_init_scan_params(priv
);
3024 if (priv
->cfg
->bt_params
&&
3025 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
3026 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
3027 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
3028 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
3029 priv
->bt_on_thresh
= BT_ON_THRESHOLD_DEF
;
3030 priv
->bt_duration
= BT_DURATION_LIMIT_DEF
;
3031 priv
->dynamic_frag_thresh
= BT_FRAG_THRESHOLD_DEF
;
3034 ret
= iwl_init_channel_map(priv
);
3036 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
3040 ret
= iwl_init_geos(priv
);
3042 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
3043 goto err_free_channel_map
;
3045 iwl_init_hw_rates(priv
, priv
->ieee_rates
);
3049 err_free_channel_map
:
3050 iwl_free_channel_map(priv
);
3055 static void iwl_uninit_drv(struct iwl_priv
*priv
)
3057 iwl_calib_free_results(priv
);
3058 iwl_free_geos(priv
);
3059 iwl_free_channel_map(priv
);
3060 if (priv
->tx_cmd_pool
)
3061 kmem_cache_destroy(priv
->tx_cmd_pool
);
3062 kfree(priv
->scan_cmd
);
3063 kfree(priv
->beacon_cmd
);
3064 #ifdef CONFIG_IWLWIFI_DEBUGFS
3065 kfree(priv
->wowlan_sram
);
3069 static void iwlagn_mac_rssi_callback(struct ieee80211_hw
*hw
,
3070 enum ieee80211_rssi_event rssi_event
)
3072 struct iwl_priv
*priv
= hw
->priv
;
3074 IWL_DEBUG_MAC80211(priv
, "enter\n");
3075 mutex_lock(&priv
->shrd
->mutex
);
3077 if (priv
->cfg
->bt_params
&&
3078 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
3079 if (rssi_event
== RSSI_EVENT_LOW
)
3080 priv
->bt_enable_pspoll
= true;
3081 else if (rssi_event
== RSSI_EVENT_HIGH
)
3082 priv
->bt_enable_pspoll
= false;
3084 iwlagn_send_advance_bt_config(priv
);
3086 IWL_DEBUG_MAC80211(priv
, "Advanced BT coex disabled,"
3087 "ignoring RSSI callback\n");
3090 mutex_unlock(&priv
->shrd
->mutex
);
3091 IWL_DEBUG_MAC80211(priv
, "leave\n");
3094 static int iwlagn_mac_set_tim(struct ieee80211_hw
*hw
,
3095 struct ieee80211_sta
*sta
, bool set
)
3097 struct iwl_priv
*priv
= hw
->priv
;
3099 queue_work(priv
->shrd
->workqueue
, &priv
->beacon_update
);
3104 struct ieee80211_ops iwlagn_hw_ops
= {
3105 .tx
= iwlagn_mac_tx
,
3106 .start
= iwlagn_mac_start
,
3107 .stop
= iwlagn_mac_stop
,
3108 #ifdef CONFIG_PM_SLEEP
3109 .suspend
= iwlagn_mac_suspend
,
3110 .resume
= iwlagn_mac_resume
,
3112 .add_interface
= iwlagn_mac_add_interface
,
3113 .remove_interface
= iwlagn_mac_remove_interface
,
3114 .change_interface
= iwlagn_mac_change_interface
,
3115 .config
= iwlagn_mac_config
,
3116 .configure_filter
= iwlagn_configure_filter
,
3117 .set_key
= iwlagn_mac_set_key
,
3118 .update_tkip_key
= iwlagn_mac_update_tkip_key
,
3119 .set_rekey_data
= iwlagn_mac_set_rekey_data
,
3120 .conf_tx
= iwlagn_mac_conf_tx
,
3121 .bss_info_changed
= iwlagn_bss_info_changed
,
3122 .ampdu_action
= iwlagn_mac_ampdu_action
,
3123 .hw_scan
= iwlagn_mac_hw_scan
,
3124 .sta_notify
= iwlagn_mac_sta_notify
,
3125 .sta_add
= iwlagn_mac_sta_add
,
3126 .sta_remove
= iwlagn_mac_sta_remove
,
3127 .channel_switch
= iwlagn_mac_channel_switch
,
3128 .flush
= iwlagn_mac_flush
,
3129 .tx_last_beacon
= iwlagn_mac_tx_last_beacon
,
3130 .remain_on_channel
= iwlagn_mac_remain_on_channel
,
3131 .cancel_remain_on_channel
= iwlagn_mac_cancel_remain_on_channel
,
3132 .rssi_callback
= iwlagn_mac_rssi_callback
,
3133 CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd
)
3134 CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump
)
3135 .tx_sync
= iwlagn_mac_tx_sync
,
3136 .finish_tx_sync
= iwlagn_mac_finish_tx_sync
,
3137 .set_tim
= iwlagn_mac_set_tim
,
3140 static u32
iwl_hw_detect(struct iwl_priv
*priv
)
3142 return iwl_read32(bus(priv
), CSR_HW_REV
);
3145 /* Size of one Rx buffer in host DRAM */
3146 #define IWL_RX_BUF_SIZE_4K (4 * 1024)
3147 #define IWL_RX_BUF_SIZE_8K (8 * 1024)
3149 static int iwl_set_hw_params(struct iwl_priv
*priv
)
3151 if (iwlagn_mod_params
.amsdu_size_8K
)
3152 hw_params(priv
).rx_page_order
=
3153 get_order(IWL_RX_BUF_SIZE_8K
);
3155 hw_params(priv
).rx_page_order
=
3156 get_order(IWL_RX_BUF_SIZE_4K
);
3158 if (iwlagn_mod_params
.disable_11n
)
3159 priv
->cfg
->sku
&= ~EEPROM_SKU_CAP_11N_ENABLE
;
3161 hw_params(priv
).num_ampdu_queues
=
3162 priv
->cfg
->base_params
->num_of_ampdu_queues
;
3163 hw_params(priv
).shadow_reg_enable
=
3164 priv
->cfg
->base_params
->shadow_reg_enable
;
3165 hw_params(priv
).sku
= priv
->cfg
->sku
;
3166 hw_params(priv
).wd_timeout
= priv
->cfg
->base_params
->wd_timeout
;
3168 /* Device-specific setup */
3169 return priv
->cfg
->lib
->set_hw_params(priv
);
3172 /* This function both allocates and initializes hw and priv. */
3173 static struct ieee80211_hw
*iwl_alloc_all(struct iwl_cfg
*cfg
)
3175 struct iwl_priv
*priv
;
3176 /* mac80211 allocates memory for this device instance, including
3177 * space for this driver's private structure */
3178 struct ieee80211_hw
*hw
;
3180 hw
= ieee80211_alloc_hw(sizeof(struct iwl_priv
), &iwlagn_hw_ops
);
3182 pr_err("%s: Can not allocate network device\n",
3194 int iwl_probe(struct iwl_bus
*bus
, const struct iwl_trans_ops
*trans_ops
,
3195 struct iwl_cfg
*cfg
)
3198 struct iwl_priv
*priv
;
3199 struct ieee80211_hw
*hw
;
3203 /************************
3204 * 1. Allocating HW data
3205 ************************/
3206 hw
= iwl_alloc_all(cfg
);
3213 priv
->shrd
= &priv
->_shrd
;
3214 bus
->shrd
= priv
->shrd
;
3215 priv
->shrd
->bus
= bus
;
3216 priv
->shrd
->priv
= priv
;
3218 priv
->shrd
->trans
= trans_ops
->alloc(priv
->shrd
);
3219 if (priv
->shrd
->trans
== NULL
) {
3221 goto out_free_traffic_mem
;
3224 /* At this point both hw and priv are allocated. */
3226 SET_IEEE80211_DEV(hw
, bus(priv
)->dev
);
3228 IWL_DEBUG_INFO(priv
, "*** LOAD DRIVER ***\n");
3231 /* is antenna coupling more than 35dB ? */
3232 priv
->bt_ant_couple_ok
=
3233 (iwlagn_mod_params
.ant_coupling
>
3234 IWL_BT_ANTENNA_COUPLING_THRESHOLD
) ?
3237 /* enable/disable bt channel inhibition */
3238 priv
->bt_ch_announce
= iwlagn_mod_params
.bt_ch_announce
;
3239 IWL_DEBUG_INFO(priv
, "BT channel inhibition is %s\n",
3240 (priv
->bt_ch_announce
) ? "On" : "Off");
3242 if (iwl_alloc_traffic_mem(priv
))
3243 IWL_ERR(priv
, "Not enough memory to generate traffic log\n");
3245 /* these spin locks will be used in apm_ops.init and EEPROM access
3246 * we should init now
3248 spin_lock_init(&bus(priv
)->reg_lock
);
3249 spin_lock_init(&priv
->shrd
->lock
);
3252 * stop and reset the on-board processor just in case it is in a
3253 * strange state ... like being left stranded by a primary kernel
3254 * and this is now the kdump kernel trying to start up
3256 iwl_write32(bus(priv
), CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
3258 /***********************
3259 * 3. Read REV register
3260 ***********************/
3261 hw_rev
= iwl_hw_detect(priv
);
3262 IWL_INFO(priv
, "Detected %s, REV=0x%X\n",
3263 priv
->cfg
->name
, hw_rev
);
3265 err
= iwl_trans_request_irq(trans(priv
));
3267 goto out_free_trans
;
3269 if (iwl_trans_prepare_card_hw(trans(priv
))) {
3271 IWL_WARN(priv
, "Failed, HW not ready\n");
3272 goto out_free_trans
;
3278 /* Read the EEPROM */
3279 err
= iwl_eeprom_init(priv
, hw_rev
);
3281 IWL_ERR(priv
, "Unable to init EEPROM\n");
3282 goto out_free_trans
;
3284 err
= iwl_eeprom_check_version(priv
);
3286 goto out_free_eeprom
;
3288 err
= iwl_eeprom_check_sku(priv
);
3290 goto out_free_eeprom
;
3292 /* extract MAC Address */
3293 iwl_eeprom_get_mac(priv
, priv
->addresses
[0].addr
);
3294 IWL_DEBUG_INFO(priv
, "MAC address: %pM\n", priv
->addresses
[0].addr
);
3295 priv
->hw
->wiphy
->addresses
= priv
->addresses
;
3296 priv
->hw
->wiphy
->n_addresses
= 1;
3297 num_mac
= iwl_eeprom_query16(priv
, EEPROM_NUM_MAC_ADDRESS
);
3299 memcpy(priv
->addresses
[1].addr
, priv
->addresses
[0].addr
,
3301 priv
->addresses
[1].addr
[5]++;
3302 priv
->hw
->wiphy
->n_addresses
++;
3305 /************************
3306 * 5. Setup HW constants
3307 ************************/
3308 if (iwl_set_hw_params(priv
)) {
3310 IWL_ERR(priv
, "failed to set hw parameters\n");
3311 goto out_free_eeprom
;
3314 /*******************
3316 *******************/
3318 err
= iwl_init_drv(priv
);
3320 goto out_free_eeprom
;
3321 /* At this point both hw and priv are initialized. */
3323 /********************
3325 ********************/
3326 iwl_setup_deferred_work(priv
);
3327 iwl_setup_rx_handlers(priv
);
3328 iwl_testmode_init(priv
);
3330 /*********************************************
3331 * 8. Enable interrupts
3332 *********************************************/
3334 iwl_enable_rfkill_int(priv
);
3336 /* If platform's RF_KILL switch is NOT set to KILL */
3337 if (iwl_read32(bus(priv
),
3338 CSR_GP_CNTRL
) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
3339 clear_bit(STATUS_RF_KILL_HW
, &priv
->shrd
->status
);
3341 set_bit(STATUS_RF_KILL_HW
, &priv
->shrd
->status
);
3343 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
3344 test_bit(STATUS_RF_KILL_HW
, &priv
->shrd
->status
));
3346 iwl_power_initialize(priv
);
3347 iwl_tt_initialize(priv
);
3349 init_completion(&priv
->firmware_loading_complete
);
3351 err
= iwl_request_firmware(priv
, true);
3353 goto out_destroy_workqueue
;
3357 out_destroy_workqueue
:
3358 destroy_workqueue(priv
->shrd
->workqueue
);
3359 priv
->shrd
->workqueue
= NULL
;
3360 iwl_uninit_drv(priv
);
3362 iwl_eeprom_free(priv
);
3364 iwl_trans_free(trans(priv
));
3365 out_free_traffic_mem
:
3366 iwl_free_traffic_mem(priv
);
3367 ieee80211_free_hw(priv
->hw
);
3372 void __devexit
iwl_remove(struct iwl_priv
* priv
)
3374 wait_for_completion(&priv
->firmware_loading_complete
);
3376 IWL_DEBUG_INFO(priv
, "*** UNLOAD DRIVER ***\n");
3378 iwl_dbgfs_unregister(priv
);
3380 /* ieee80211_unregister_hw call wil cause iwlagn_mac_stop to
3381 * to be called and iwl_down since we are removing the device
3382 * we need to set STATUS_EXIT_PENDING bit.
3384 set_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
3386 iwl_testmode_cleanup(priv
);
3387 iwl_leds_exit(priv
);
3389 if (priv
->mac80211_registered
) {
3390 ieee80211_unregister_hw(priv
->hw
);
3391 priv
->mac80211_registered
= 0;
3396 /*This will stop the queues, move the device to low power state */
3397 iwl_trans_stop_device(trans(priv
));
3399 iwl_dealloc_ucode(priv
);
3401 iwl_eeprom_free(priv
);
3403 /*netif_stop_queue(dev); */
3404 flush_workqueue(priv
->shrd
->workqueue
);
3406 /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes
3407 * priv->shrd->workqueue... so we can't take down the workqueue
3409 destroy_workqueue(priv
->shrd
->workqueue
);
3410 priv
->shrd
->workqueue
= NULL
;
3411 iwl_free_traffic_mem(priv
);
3413 iwl_trans_free(trans(priv
));
3415 iwl_uninit_drv(priv
);
3417 dev_kfree_skb(priv
->beacon_skb
);
3419 ieee80211_free_hw(priv
->hw
);
3423 /*****************************************************************************
3425 * driver and module entry point
3427 *****************************************************************************/
3428 static int __init
iwl_init(void)
3432 pr_info(DRV_DESCRIPTION
", " DRV_VERSION
"\n");
3433 pr_info(DRV_COPYRIGHT
"\n");
3435 ret
= iwlagn_rate_control_register();
3437 pr_err("Unable to register rate control algorithm: %d\n", ret
);
3441 ret
= iwl_pci_register_driver();
3444 goto error_register
;
3448 iwlagn_rate_control_unregister();
3452 static void __exit
iwl_exit(void)
3454 iwl_pci_unregister_driver();
3455 iwlagn_rate_control_unregister();
3458 module_exit(iwl_exit
);
3459 module_init(iwl_init
);
3461 #ifdef CONFIG_IWLWIFI_DEBUG
3462 module_param_named(debug
, iwlagn_mod_params
.debug_level
, uint
,
3464 MODULE_PARM_DESC(debug
, "debug output mask");
3467 module_param_named(swcrypto
, iwlagn_mod_params
.sw_crypto
, int, S_IRUGO
);
3468 MODULE_PARM_DESC(swcrypto
, "using crypto in software (default 0 [hardware])");
3469 module_param_named(queues_num
, iwlagn_mod_params
.num_of_queues
, int, S_IRUGO
);
3470 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
3471 module_param_named(11n_disable
, iwlagn_mod_params
.disable_11n
, int, S_IRUGO
);
3472 MODULE_PARM_DESC(11n_disable
, "disable 11n functionality");
3473 module_param_named(amsdu_size_8K
, iwlagn_mod_params
.amsdu_size_8K
,
3475 MODULE_PARM_DESC(amsdu_size_8K
, "enable 8K amsdu size");
3476 module_param_named(fw_restart
, iwlagn_mod_params
.restart_fw
, int, S_IRUGO
);
3477 MODULE_PARM_DESC(fw_restart
, "restart firmware in case of error");
3479 module_param_named(ucode_alternative
,
3480 iwlagn_mod_params
.wanted_ucode_alternative
,
3482 MODULE_PARM_DESC(ucode_alternative
,
3483 "specify ucode alternative to use from ucode file");
3485 module_param_named(antenna_coupling
, iwlagn_mod_params
.ant_coupling
,
3487 MODULE_PARM_DESC(antenna_coupling
,
3488 "specify antenna coupling in dB (defualt: 0 dB)");
3490 module_param_named(bt_ch_inhibition
, iwlagn_mod_params
.bt_ch_announce
,
3492 MODULE_PARM_DESC(bt_ch_inhibition
,
3493 "Enable BT channel inhibition (default: enable)");
3495 module_param_named(plcp_check
, iwlagn_mod_params
.plcp_check
, bool, S_IRUGO
);
3496 MODULE_PARM_DESC(plcp_check
, "Check plcp health (default: 1 [enabled])");
3498 module_param_named(ack_check
, iwlagn_mod_params
.ack_check
, bool, S_IRUGO
);
3499 MODULE_PARM_DESC(ack_check
, "Check ack health (default: 0 [disabled])");
3501 module_param_named(wd_disable
, iwlagn_mod_params
.wd_disable
, int, S_IRUGO
);
3502 MODULE_PARM_DESC(wd_disable
,
3503 "Disable stuck queue watchdog timer 0=system default, "
3504 "1=disable, 2=enable (default: 0)");
3507 * set bt_coex_active to true, uCode will do kill/defer
3508 * every time the priority line is asserted (BT is sending signals on the
3509 * priority line in the PCIx).
3510 * set bt_coex_active to false, uCode will ignore the BT activity and
3511 * perform the normal operation
3513 * User might experience transmit issue on some platform due to WiFi/BT
3514 * co-exist problem. The possible behaviors are:
3515 * Able to scan and finding all the available AP
3516 * Not able to associate with any AP
3517 * On those platforms, WiFi communication can be restored by set
3518 * "bt_coex_active" module parameter to "false"
3520 * default: bt_coex_active = true (BT_COEX_ENABLE)
3522 module_param_named(bt_coex_active
, iwlagn_mod_params
.bt_coex_active
,
3524 MODULE_PARM_DESC(bt_coex_active
, "enable wifi/bt co-exist (default: enable)");
3526 module_param_named(led_mode
, iwlagn_mod_params
.led_mode
, int, S_IRUGO
);
3527 MODULE_PARM_DESC(led_mode
, "0=system default, "
3528 "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)");
3530 module_param_named(power_save
, iwlagn_mod_params
.power_save
,
3532 MODULE_PARM_DESC(power_save
,
3533 "enable WiFi power management (default: disable)");
3535 module_param_named(power_level
, iwlagn_mod_params
.power_level
,
3537 MODULE_PARM_DESC(power_level
,
3538 "default power save level (range from 1 - 5, default: 1)");
3540 module_param_named(auto_agg
, iwlagn_mod_params
.auto_agg
,
3542 MODULE_PARM_DESC(auto_agg
,
3543 "enable agg w/o check traffic load (default: enable)");
3546 * For now, keep using power level 1 instead of automatically
3549 module_param_named(no_sleep_autoadjust
, iwlagn_mod_params
.no_sleep_autoadjust
,
3551 MODULE_PARM_DESC(no_sleep_autoadjust
,
3552 "don't automatically adjust sleep level "
3553 "according to maximum network latency (default: true)");