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-helpers.h"
52 #include "iwl-agn-calib.h"
55 #include "iwl-trans.h"
57 /******************************************************************************
61 ******************************************************************************/
64 * module name, copyright, version, etc.
66 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
68 #ifdef CONFIG_IWLWIFI_DEBUG
74 #define DRV_VERSION IWLWIFI_VERSION VD
77 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
78 MODULE_VERSION(DRV_VERSION
);
79 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
80 MODULE_LICENSE("GPL");
82 static int iwlagn_ant_coupling
;
83 static bool iwlagn_bt_ch_announce
= 1;
85 void iwl_update_chain_flags(struct iwl_priv
*priv
)
87 struct iwl_rxon_context
*ctx
;
89 for_each_context(priv
, ctx
) {
90 iwlagn_set_rxon_chain(priv
, ctx
);
91 if (ctx
->active
.rx_chain
!= ctx
->staging
.rx_chain
)
92 iwlagn_commit_rxon(priv
, ctx
);
96 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
97 static void iwl_set_beacon_tim(struct iwl_priv
*priv
,
98 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
,
99 u8
*beacon
, u32 frame_size
)
102 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)beacon
;
105 * The index is relative to frame start but we start looking at the
106 * variable-length part of the beacon.
108 tim_idx
= mgmt
->u
.beacon
.variable
- beacon
;
110 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
111 while ((tim_idx
< (frame_size
- 2)) &&
112 (beacon
[tim_idx
] != WLAN_EID_TIM
))
113 tim_idx
+= beacon
[tim_idx
+1] + 2;
115 /* If TIM field was found, set variables */
116 if ((tim_idx
< (frame_size
- 1)) && (beacon
[tim_idx
] == WLAN_EID_TIM
)) {
117 tx_beacon_cmd
->tim_idx
= cpu_to_le16(tim_idx
);
118 tx_beacon_cmd
->tim_size
= beacon
[tim_idx
+1];
120 IWL_WARN(priv
, "Unable to find TIM Element in beacon\n");
123 int iwlagn_send_beacon_cmd(struct iwl_priv
*priv
)
125 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
;
126 struct iwl_host_cmd cmd
= {
127 .id
= REPLY_TX_BEACON
,
130 struct ieee80211_tx_info
*info
;
136 * We have to set up the TX command, the TX Beacon command, and the
140 lockdep_assert_held(&priv
->mutex
);
142 if (!priv
->beacon_ctx
) {
143 IWL_ERR(priv
, "trying to build beacon w/o beacon context!\n");
147 if (WARN_ON(!priv
->beacon_skb
))
150 /* Allocate beacon command */
151 if (!priv
->beacon_cmd
)
152 priv
->beacon_cmd
= kzalloc(sizeof(*tx_beacon_cmd
), GFP_KERNEL
);
153 tx_beacon_cmd
= priv
->beacon_cmd
;
157 frame_size
= priv
->beacon_skb
->len
;
159 /* Set up TX command fields */
160 tx_beacon_cmd
->tx
.len
= cpu_to_le16((u16
)frame_size
);
161 tx_beacon_cmd
->tx
.sta_id
= priv
->beacon_ctx
->bcast_sta_id
;
162 tx_beacon_cmd
->tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
163 tx_beacon_cmd
->tx
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
|
164 TX_CMD_FLG_TSF_MSK
| TX_CMD_FLG_STA_RATE_MSK
;
166 /* Set up TX beacon command fields */
167 iwl_set_beacon_tim(priv
, tx_beacon_cmd
, priv
->beacon_skb
->data
,
170 /* Set up packet rate and flags */
171 info
= IEEE80211_SKB_CB(priv
->beacon_skb
);
174 * Let's set up the rate at least somewhat correctly;
175 * it will currently not actually be used by the uCode,
176 * it uses the broadcast station's rate instead.
178 if (info
->control
.rates
[0].idx
< 0 ||
179 info
->control
.rates
[0].flags
& IEEE80211_TX_RC_MCS
)
182 rate
= info
->control
.rates
[0].idx
;
184 priv
->mgmt_tx_ant
= iwl_toggle_tx_ant(priv
, priv
->mgmt_tx_ant
,
185 priv
->hw_params
.valid_tx_ant
);
186 rate_flags
= iwl_ant_idx_to_flags(priv
->mgmt_tx_ant
);
188 /* In mac80211, rates for 5 GHz start at 0 */
189 if (info
->band
== IEEE80211_BAND_5GHZ
)
190 rate
+= IWL_FIRST_OFDM_RATE
;
191 else if (rate
>= IWL_FIRST_CCK_RATE
&& rate
<= IWL_LAST_CCK_RATE
)
192 rate_flags
|= RATE_MCS_CCK_MSK
;
194 tx_beacon_cmd
->tx
.rate_n_flags
=
195 iwl_hw_set_rate_n_flags(rate
, rate_flags
);
198 cmd
.len
[0] = sizeof(*tx_beacon_cmd
);
199 cmd
.data
[0] = tx_beacon_cmd
;
200 cmd
.dataflags
[0] = IWL_HCMD_DFL_NOCOPY
;
201 cmd
.len
[1] = frame_size
;
202 cmd
.data
[1] = priv
->beacon_skb
->data
;
203 cmd
.dataflags
[1] = IWL_HCMD_DFL_NOCOPY
;
205 return trans_send_cmd(&priv
->trans
, &cmd
);
208 static void iwl_bg_beacon_update(struct work_struct
*work
)
210 struct iwl_priv
*priv
=
211 container_of(work
, struct iwl_priv
, beacon_update
);
212 struct sk_buff
*beacon
;
214 mutex_lock(&priv
->mutex
);
215 if (!priv
->beacon_ctx
) {
216 IWL_ERR(priv
, "updating beacon w/o beacon context!\n");
220 if (priv
->beacon_ctx
->vif
->type
!= NL80211_IFTYPE_AP
) {
222 * The ucode will send beacon notifications even in
223 * IBSS mode, but we don't want to process them. But
224 * we need to defer the type check to here due to
225 * requiring locking around the beacon_ctx access.
230 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
231 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->beacon_ctx
->vif
);
233 IWL_ERR(priv
, "update beacon failed -- keeping old\n");
237 /* new beacon skb is allocated every time; dispose previous.*/
238 dev_kfree_skb(priv
->beacon_skb
);
240 priv
->beacon_skb
= beacon
;
242 iwlagn_send_beacon_cmd(priv
);
244 mutex_unlock(&priv
->mutex
);
247 static void iwl_bg_bt_runtime_config(struct work_struct
*work
)
249 struct iwl_priv
*priv
=
250 container_of(work
, struct iwl_priv
, bt_runtime_config
);
252 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
255 /* dont send host command if rf-kill is on */
256 if (!iwl_is_ready_rf(priv
))
258 iwlagn_send_advance_bt_config(priv
);
261 static void iwl_bg_bt_full_concurrency(struct work_struct
*work
)
263 struct iwl_priv
*priv
=
264 container_of(work
, struct iwl_priv
, bt_full_concurrency
);
265 struct iwl_rxon_context
*ctx
;
267 mutex_lock(&priv
->mutex
);
269 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
272 /* dont send host command if rf-kill is on */
273 if (!iwl_is_ready_rf(priv
))
276 IWL_DEBUG_INFO(priv
, "BT coex in %s mode\n",
277 priv
->bt_full_concurrent
?
278 "full concurrency" : "3-wire");
281 * LQ & RXON updated cmds must be sent before BT Config cmd
282 * to avoid 3-wire collisions
284 for_each_context(priv
, ctx
) {
285 iwlagn_set_rxon_chain(priv
, ctx
);
286 iwlagn_commit_rxon(priv
, ctx
);
289 iwlagn_send_advance_bt_config(priv
);
291 mutex_unlock(&priv
->mutex
);
295 * iwl_bg_statistics_periodic - Timer callback to queue statistics
297 * This callback is provided in order to send a statistics request.
299 * This timer function is continually reset to execute within
300 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
301 * was received. We need to ensure we receive the statistics in order
302 * to update the temperature used for calibrating the TXPOWER.
304 static void iwl_bg_statistics_periodic(unsigned long data
)
306 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
308 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
311 /* dont send host command if rf-kill is on */
312 if (!iwl_is_ready_rf(priv
))
315 iwl_send_statistics_request(priv
, CMD_ASYNC
, false);
319 static void iwl_print_cont_event_trace(struct iwl_priv
*priv
, u32 base
,
320 u32 start_idx
, u32 num_events
,
324 u32 ptr
; /* SRAM byte address of log data */
325 u32 ev
, time
, data
; /* event log data */
326 unsigned long reg_flags
;
329 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 2 * sizeof(u32
));
331 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 3 * sizeof(u32
));
333 /* Make sure device is powered up for SRAM reads */
334 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
335 if (iwl_grab_nic_access(priv
)) {
336 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
340 /* Set starting address; reads will auto-increment */
341 iwl_write32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
345 * "time" is actually "data" for mode 0 (no timestamp).
346 * place event id # at far right for easier visual parsing.
348 for (i
= 0; i
< num_events
; i
++) {
349 ev
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
350 time
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
352 trace_iwlwifi_dev_ucode_cont_event(priv
,
355 data
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
356 trace_iwlwifi_dev_ucode_cont_event(priv
,
360 /* Allow device to power down */
361 iwl_release_nic_access(priv
);
362 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
365 static void iwl_continuous_event_trace(struct iwl_priv
*priv
)
367 u32 capacity
; /* event log capacity in # entries */
368 u32 base
; /* SRAM byte address of event log header */
369 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
370 u32 num_wraps
; /* # times uCode wrapped to top of log */
371 u32 next_entry
; /* index of next entry to be written by uCode */
373 base
= priv
->device_pointers
.error_event_table
;
374 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
375 capacity
= iwl_read_targ_mem(priv
, base
);
376 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
377 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
378 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
382 if (num_wraps
== priv
->event_log
.num_wraps
) {
383 iwl_print_cont_event_trace(priv
,
384 base
, priv
->event_log
.next_entry
,
385 next_entry
- priv
->event_log
.next_entry
,
387 priv
->event_log
.non_wraps_count
++;
389 if ((num_wraps
- priv
->event_log
.num_wraps
) > 1)
390 priv
->event_log
.wraps_more_count
++;
392 priv
->event_log
.wraps_once_count
++;
393 trace_iwlwifi_dev_ucode_wrap_event(priv
,
394 num_wraps
- priv
->event_log
.num_wraps
,
395 next_entry
, priv
->event_log
.next_entry
);
396 if (next_entry
< priv
->event_log
.next_entry
) {
397 iwl_print_cont_event_trace(priv
, base
,
398 priv
->event_log
.next_entry
,
399 capacity
- priv
->event_log
.next_entry
,
402 iwl_print_cont_event_trace(priv
, base
, 0,
405 iwl_print_cont_event_trace(priv
, base
,
406 next_entry
, capacity
- next_entry
,
409 iwl_print_cont_event_trace(priv
, base
, 0,
413 priv
->event_log
.num_wraps
= num_wraps
;
414 priv
->event_log
.next_entry
= next_entry
;
418 * iwl_bg_ucode_trace - Timer callback to log ucode event
420 * The timer is continually set to execute every
421 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
422 * this function is to perform continuous uCode event logging operation
425 static void iwl_bg_ucode_trace(unsigned long data
)
427 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
429 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
432 if (priv
->event_log
.ucode_trace
) {
433 iwl_continuous_event_trace(priv
);
434 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
435 mod_timer(&priv
->ucode_trace
,
436 jiffies
+ msecs_to_jiffies(UCODE_TRACE_PERIOD
));
440 static void iwl_bg_tx_flush(struct work_struct
*work
)
442 struct iwl_priv
*priv
=
443 container_of(work
, struct iwl_priv
, tx_flush
);
445 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
448 /* do nothing if rf-kill is on */
449 if (!iwl_is_ready_rf(priv
))
452 IWL_DEBUG_INFO(priv
, "device request: flush all tx frames\n");
453 iwlagn_dev_txfifo_flush(priv
, IWL_DROP_ALL
);
456 /*****************************************************************************
460 *****************************************************************************/
462 #ifdef CONFIG_IWLWIFI_DEBUG
465 * The following adds a new attribute to the sysfs representation
466 * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
467 * used for controlling the debug level.
469 * See the level definitions in iwl for details.
471 * The debug_level being managed using sysfs below is a per device debug
472 * level that is used instead of the global debug level if it (the per
473 * device debug level) is set.
475 static ssize_t
show_debug_level(struct device
*d
,
476 struct device_attribute
*attr
, char *buf
)
478 struct iwl_priv
*priv
= dev_get_drvdata(d
);
479 return sprintf(buf
, "0x%08X\n", iwl_get_debug_level(priv
));
481 static ssize_t
store_debug_level(struct device
*d
,
482 struct device_attribute
*attr
,
483 const char *buf
, size_t count
)
485 struct iwl_priv
*priv
= dev_get_drvdata(d
);
489 ret
= strict_strtoul(buf
, 0, &val
);
491 IWL_ERR(priv
, "%s is not in hex or decimal form.\n", buf
);
493 priv
->debug_level
= val
;
494 if (iwl_alloc_traffic_mem(priv
))
496 "Not enough memory to generate traffic log\n");
498 return strnlen(buf
, count
);
501 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
502 show_debug_level
, store_debug_level
);
505 #endif /* CONFIG_IWLWIFI_DEBUG */
508 static ssize_t
show_temperature(struct device
*d
,
509 struct device_attribute
*attr
, char *buf
)
511 struct iwl_priv
*priv
= dev_get_drvdata(d
);
513 if (!iwl_is_alive(priv
))
516 return sprintf(buf
, "%d\n", priv
->temperature
);
519 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
521 static ssize_t
show_tx_power(struct device
*d
,
522 struct device_attribute
*attr
, char *buf
)
524 struct iwl_priv
*priv
= dev_get_drvdata(d
);
526 if (!iwl_is_ready_rf(priv
))
527 return sprintf(buf
, "off\n");
529 return sprintf(buf
, "%d\n", priv
->tx_power_user_lmt
);
532 static ssize_t
store_tx_power(struct device
*d
,
533 struct device_attribute
*attr
,
534 const char *buf
, size_t count
)
536 struct iwl_priv
*priv
= dev_get_drvdata(d
);
540 ret
= strict_strtoul(buf
, 10, &val
);
542 IWL_INFO(priv
, "%s is not in decimal form.\n", buf
);
544 ret
= iwl_set_tx_power(priv
, val
, false);
546 IWL_ERR(priv
, "failed setting tx power (0x%d).\n",
554 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
556 static struct attribute
*iwl_sysfs_entries
[] = {
557 &dev_attr_temperature
.attr
,
558 &dev_attr_tx_power
.attr
,
559 #ifdef CONFIG_IWLWIFI_DEBUG
560 &dev_attr_debug_level
.attr
,
565 static struct attribute_group iwl_attribute_group
= {
566 .name
= NULL
, /* put in device directory */
567 .attrs
= iwl_sysfs_entries
,
570 /******************************************************************************
572 * uCode download functions
574 ******************************************************************************/
576 static void iwl_free_fw_desc(struct iwl_priv
*priv
, struct fw_desc
*desc
)
579 dma_free_coherent(priv
->bus
->dev
, desc
->len
,
580 desc
->v_addr
, desc
->p_addr
);
585 static void iwl_free_fw_img(struct iwl_priv
*priv
, struct fw_img
*img
)
587 iwl_free_fw_desc(priv
, &img
->code
);
588 iwl_free_fw_desc(priv
, &img
->data
);
591 static void iwl_dealloc_ucode(struct iwl_priv
*priv
)
593 iwl_free_fw_img(priv
, &priv
->ucode_rt
);
594 iwl_free_fw_img(priv
, &priv
->ucode_init
);
595 iwl_free_fw_img(priv
, &priv
->ucode_wowlan
);
598 static int iwl_alloc_fw_desc(struct iwl_priv
*priv
, struct fw_desc
*desc
,
599 const void *data
, size_t len
)
606 desc
->v_addr
= dma_alloc_coherent(priv
->bus
->dev
, len
,
607 &desc
->p_addr
, GFP_KERNEL
);
612 memcpy(desc
->v_addr
, data
, len
);
616 static void iwl_init_context(struct iwl_priv
*priv
, u32 ucode_flags
)
618 static const u8 iwlagn_bss_ac_to_fifo
[] = {
624 static const u8 iwlagn_bss_ac_to_queue
[] = {
627 static const u8 iwlagn_pan_ac_to_fifo
[] = {
633 static const u8 iwlagn_pan_ac_to_queue
[] = {
639 * The default context is always valid,
640 * the PAN context depends on uCode.
642 priv
->valid_contexts
= BIT(IWL_RXON_CTX_BSS
);
643 if (ucode_flags
& IWL_UCODE_TLV_FLAGS_PAN
)
644 priv
->valid_contexts
|= BIT(IWL_RXON_CTX_PAN
);
646 for (i
= 0; i
< NUM_IWL_RXON_CTX
; i
++)
647 priv
->contexts
[i
].ctxid
= i
;
649 priv
->contexts
[IWL_RXON_CTX_BSS
].always_active
= true;
650 priv
->contexts
[IWL_RXON_CTX_BSS
].is_active
= true;
651 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_cmd
= REPLY_RXON
;
652 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_timing_cmd
= REPLY_RXON_TIMING
;
653 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_assoc_cmd
= REPLY_RXON_ASSOC
;
654 priv
->contexts
[IWL_RXON_CTX_BSS
].qos_cmd
= REPLY_QOS_PARAM
;
655 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_sta_id
= IWL_AP_ID
;
656 priv
->contexts
[IWL_RXON_CTX_BSS
].wep_key_cmd
= REPLY_WEPKEY
;
657 priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_fifo
= iwlagn_bss_ac_to_fifo
;
658 priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_queue
= iwlagn_bss_ac_to_queue
;
659 priv
->contexts
[IWL_RXON_CTX_BSS
].exclusive_interface_modes
=
660 BIT(NL80211_IFTYPE_ADHOC
);
661 priv
->contexts
[IWL_RXON_CTX_BSS
].interface_modes
=
662 BIT(NL80211_IFTYPE_STATION
);
663 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_devtype
= RXON_DEV_TYPE_AP
;
664 priv
->contexts
[IWL_RXON_CTX_BSS
].ibss_devtype
= RXON_DEV_TYPE_IBSS
;
665 priv
->contexts
[IWL_RXON_CTX_BSS
].station_devtype
= RXON_DEV_TYPE_ESS
;
666 priv
->contexts
[IWL_RXON_CTX_BSS
].unused_devtype
= RXON_DEV_TYPE_ESS
;
668 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_cmd
= REPLY_WIPAN_RXON
;
669 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_timing_cmd
=
670 REPLY_WIPAN_RXON_TIMING
;
671 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_assoc_cmd
=
672 REPLY_WIPAN_RXON_ASSOC
;
673 priv
->contexts
[IWL_RXON_CTX_PAN
].qos_cmd
= REPLY_WIPAN_QOS_PARAM
;
674 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_sta_id
= IWL_AP_ID_PAN
;
675 priv
->contexts
[IWL_RXON_CTX_PAN
].wep_key_cmd
= REPLY_WIPAN_WEPKEY
;
676 priv
->contexts
[IWL_RXON_CTX_PAN
].bcast_sta_id
= IWLAGN_PAN_BCAST_ID
;
677 priv
->contexts
[IWL_RXON_CTX_PAN
].station_flags
= STA_FLG_PAN_STATION
;
678 priv
->contexts
[IWL_RXON_CTX_PAN
].ac_to_fifo
= iwlagn_pan_ac_to_fifo
;
679 priv
->contexts
[IWL_RXON_CTX_PAN
].ac_to_queue
= iwlagn_pan_ac_to_queue
;
680 priv
->contexts
[IWL_RXON_CTX_PAN
].mcast_queue
= IWL_IPAN_MCAST_QUEUE
;
681 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
=
682 BIT(NL80211_IFTYPE_STATION
) | BIT(NL80211_IFTYPE_AP
);
683 #ifdef CONFIG_IWL_P2P
684 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
|=
685 BIT(NL80211_IFTYPE_P2P_CLIENT
) | BIT(NL80211_IFTYPE_P2P_GO
);
687 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_devtype
= RXON_DEV_TYPE_CP
;
688 priv
->contexts
[IWL_RXON_CTX_PAN
].station_devtype
= RXON_DEV_TYPE_2STA
;
689 priv
->contexts
[IWL_RXON_CTX_PAN
].unused_devtype
= RXON_DEV_TYPE_P2P
;
691 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
695 struct iwlagn_ucode_capabilities
{
696 u32 max_probe_length
;
697 u32 standard_phy_calibration_size
;
701 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
);
702 static int iwl_mac_setup_register(struct iwl_priv
*priv
,
703 struct iwlagn_ucode_capabilities
*capa
);
705 #define UCODE_EXPERIMENTAL_INDEX 100
706 #define UCODE_EXPERIMENTAL_TAG "exp"
708 static int __must_check
iwl_request_firmware(struct iwl_priv
*priv
, bool first
)
710 const char *name_pre
= priv
->cfg
->fw_name_pre
;
714 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
715 priv
->fw_index
= UCODE_EXPERIMENTAL_INDEX
;
716 strcpy(tag
, UCODE_EXPERIMENTAL_TAG
);
717 } else if (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
) {
719 priv
->fw_index
= priv
->cfg
->ucode_api_max
;
720 sprintf(tag
, "%d", priv
->fw_index
);
723 sprintf(tag
, "%d", priv
->fw_index
);
726 if (priv
->fw_index
< priv
->cfg
->ucode_api_min
) {
727 IWL_ERR(priv
, "no suitable firmware found!\n");
731 sprintf(priv
->firmware_name
, "%s%s%s", name_pre
, tag
, ".ucode");
733 IWL_DEBUG_INFO(priv
, "attempting to load firmware %s'%s'\n",
734 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
735 ? "EXPERIMENTAL " : "",
736 priv
->firmware_name
);
738 return request_firmware_nowait(THIS_MODULE
, 1, priv
->firmware_name
,
740 GFP_KERNEL
, priv
, iwl_ucode_callback
);
743 struct iwlagn_firmware_pieces
{
744 const void *inst
, *data
, *init
, *init_data
, *wowlan_inst
, *wowlan_data
;
745 size_t inst_size
, data_size
, init_size
, init_data_size
,
746 wowlan_inst_size
, wowlan_data_size
;
750 u32 init_evtlog_ptr
, init_evtlog_size
, init_errlog_ptr
;
751 u32 inst_evtlog_ptr
, inst_evtlog_size
, inst_errlog_ptr
;
754 static int iwlagn_load_legacy_firmware(struct iwl_priv
*priv
,
755 const struct firmware
*ucode_raw
,
756 struct iwlagn_firmware_pieces
*pieces
)
758 struct iwl_ucode_header
*ucode
= (void *)ucode_raw
->data
;
759 u32 api_ver
, hdr_size
;
762 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
763 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
768 if (ucode_raw
->size
< hdr_size
) {
769 IWL_ERR(priv
, "File size too small!\n");
772 pieces
->build
= le32_to_cpu(ucode
->u
.v2
.build
);
773 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v2
.inst_size
);
774 pieces
->data_size
= le32_to_cpu(ucode
->u
.v2
.data_size
);
775 pieces
->init_size
= le32_to_cpu(ucode
->u
.v2
.init_size
);
776 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v2
.init_data_size
);
777 src
= ucode
->u
.v2
.data
;
783 if (ucode_raw
->size
< hdr_size
) {
784 IWL_ERR(priv
, "File size too small!\n");
788 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v1
.inst_size
);
789 pieces
->data_size
= le32_to_cpu(ucode
->u
.v1
.data_size
);
790 pieces
->init_size
= le32_to_cpu(ucode
->u
.v1
.init_size
);
791 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v1
.init_data_size
);
792 src
= ucode
->u
.v1
.data
;
796 /* Verify size of file vs. image size info in file's header */
797 if (ucode_raw
->size
!= hdr_size
+ pieces
->inst_size
+
798 pieces
->data_size
+ pieces
->init_size
+
799 pieces
->init_data_size
) {
802 "uCode file size %d does not match expected size\n",
803 (int)ucode_raw
->size
);
808 src
+= pieces
->inst_size
;
810 src
+= pieces
->data_size
;
812 src
+= pieces
->init_size
;
813 pieces
->init_data
= src
;
814 src
+= pieces
->init_data_size
;
819 static int iwlagn_wanted_ucode_alternative
= 1;
821 static int iwlagn_load_firmware(struct iwl_priv
*priv
,
822 const struct firmware
*ucode_raw
,
823 struct iwlagn_firmware_pieces
*pieces
,
824 struct iwlagn_ucode_capabilities
*capa
)
826 struct iwl_tlv_ucode_header
*ucode
= (void *)ucode_raw
->data
;
827 struct iwl_ucode_tlv
*tlv
;
828 size_t len
= ucode_raw
->size
;
830 int wanted_alternative
= iwlagn_wanted_ucode_alternative
, tmp
;
833 enum iwl_ucode_tlv_type tlv_type
;
836 if (len
< sizeof(*ucode
)) {
837 IWL_ERR(priv
, "uCode has invalid length: %zd\n", len
);
841 if (ucode
->magic
!= cpu_to_le32(IWL_TLV_UCODE_MAGIC
)) {
842 IWL_ERR(priv
, "invalid uCode magic: 0X%x\n",
843 le32_to_cpu(ucode
->magic
));
848 * Check which alternatives are present, and "downgrade"
849 * when the chosen alternative is not present, warning
850 * the user when that happens. Some files may not have
851 * any alternatives, so don't warn in that case.
853 alternatives
= le64_to_cpu(ucode
->alternatives
);
854 tmp
= wanted_alternative
;
855 if (wanted_alternative
> 63)
856 wanted_alternative
= 63;
857 while (wanted_alternative
&& !(alternatives
& BIT(wanted_alternative
)))
858 wanted_alternative
--;
859 if (wanted_alternative
&& wanted_alternative
!= tmp
)
861 "uCode alternative %d not available, choosing %d\n",
862 tmp
, wanted_alternative
);
864 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
865 pieces
->build
= le32_to_cpu(ucode
->build
);
868 len
-= sizeof(*ucode
);
870 while (len
>= sizeof(*tlv
)) {
876 tlv_len
= le32_to_cpu(tlv
->length
);
877 tlv_type
= le16_to_cpu(tlv
->type
);
878 tlv_alt
= le16_to_cpu(tlv
->alternative
);
879 tlv_data
= tlv
->data
;
882 IWL_ERR(priv
, "invalid TLV len: %zd/%u\n",
886 len
-= ALIGN(tlv_len
, 4);
887 data
+= sizeof(*tlv
) + ALIGN(tlv_len
, 4);
890 * Alternative 0 is always valid.
892 * Skip alternative TLVs that are not selected.
894 if (tlv_alt
!= 0 && tlv_alt
!= wanted_alternative
)
898 case IWL_UCODE_TLV_INST
:
899 pieces
->inst
= tlv_data
;
900 pieces
->inst_size
= tlv_len
;
902 case IWL_UCODE_TLV_DATA
:
903 pieces
->data
= tlv_data
;
904 pieces
->data_size
= tlv_len
;
906 case IWL_UCODE_TLV_INIT
:
907 pieces
->init
= tlv_data
;
908 pieces
->init_size
= tlv_len
;
910 case IWL_UCODE_TLV_INIT_DATA
:
911 pieces
->init_data
= tlv_data
;
912 pieces
->init_data_size
= tlv_len
;
914 case IWL_UCODE_TLV_BOOT
:
915 IWL_ERR(priv
, "Found unexpected BOOT ucode\n");
917 case IWL_UCODE_TLV_PROBE_MAX_LEN
:
918 if (tlv_len
!= sizeof(u32
))
919 goto invalid_tlv_len
;
920 capa
->max_probe_length
=
921 le32_to_cpup((__le32
*)tlv_data
);
923 case IWL_UCODE_TLV_PAN
:
925 goto invalid_tlv_len
;
926 capa
->flags
|= IWL_UCODE_TLV_FLAGS_PAN
;
928 case IWL_UCODE_TLV_FLAGS
:
929 /* must be at least one u32 */
930 if (tlv_len
< sizeof(u32
))
931 goto invalid_tlv_len
;
932 /* and a proper number of u32s */
933 if (tlv_len
% sizeof(u32
))
934 goto invalid_tlv_len
;
936 * This driver only reads the first u32 as
937 * right now no more features are defined,
938 * if that changes then either the driver
939 * will not work with the new firmware, or
940 * it'll not take advantage of new features.
942 capa
->flags
= le32_to_cpup((__le32
*)tlv_data
);
944 case IWL_UCODE_TLV_INIT_EVTLOG_PTR
:
945 if (tlv_len
!= sizeof(u32
))
946 goto invalid_tlv_len
;
947 pieces
->init_evtlog_ptr
=
948 le32_to_cpup((__le32
*)tlv_data
);
950 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE
:
951 if (tlv_len
!= sizeof(u32
))
952 goto invalid_tlv_len
;
953 pieces
->init_evtlog_size
=
954 le32_to_cpup((__le32
*)tlv_data
);
956 case IWL_UCODE_TLV_INIT_ERRLOG_PTR
:
957 if (tlv_len
!= sizeof(u32
))
958 goto invalid_tlv_len
;
959 pieces
->init_errlog_ptr
=
960 le32_to_cpup((__le32
*)tlv_data
);
962 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR
:
963 if (tlv_len
!= sizeof(u32
))
964 goto invalid_tlv_len
;
965 pieces
->inst_evtlog_ptr
=
966 le32_to_cpup((__le32
*)tlv_data
);
968 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE
:
969 if (tlv_len
!= sizeof(u32
))
970 goto invalid_tlv_len
;
971 pieces
->inst_evtlog_size
=
972 le32_to_cpup((__le32
*)tlv_data
);
974 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR
:
975 if (tlv_len
!= sizeof(u32
))
976 goto invalid_tlv_len
;
977 pieces
->inst_errlog_ptr
=
978 le32_to_cpup((__le32
*)tlv_data
);
980 case IWL_UCODE_TLV_ENHANCE_SENS_TBL
:
982 goto invalid_tlv_len
;
983 priv
->enhance_sensitivity_table
= true;
985 case IWL_UCODE_TLV_WOWLAN_INST
:
986 pieces
->wowlan_inst
= tlv_data
;
987 pieces
->wowlan_inst_size
= tlv_len
;
989 case IWL_UCODE_TLV_WOWLAN_DATA
:
990 pieces
->wowlan_data
= tlv_data
;
991 pieces
->wowlan_data_size
= tlv_len
;
993 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE
:
994 if (tlv_len
!= sizeof(u32
))
995 goto invalid_tlv_len
;
996 capa
->standard_phy_calibration_size
=
997 le32_to_cpup((__le32
*)tlv_data
);
1000 IWL_DEBUG_INFO(priv
, "unknown TLV: %d\n", tlv_type
);
1006 IWL_ERR(priv
, "invalid TLV after parsing: %zd\n", len
);
1007 iwl_print_hex_dump(priv
, IWL_DL_FW
, (u8
*)data
, len
);
1014 IWL_ERR(priv
, "TLV %d has invalid size: %u\n", tlv_type
, tlv_len
);
1015 iwl_print_hex_dump(priv
, IWL_DL_FW
, tlv_data
, tlv_len
);
1021 * iwl_ucode_callback - callback when firmware was loaded
1023 * If loaded successfully, copies the firmware into buffers
1024 * for the card to fetch (via DMA).
1026 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
)
1028 struct iwl_priv
*priv
= context
;
1029 struct iwl_ucode_header
*ucode
;
1031 struct iwlagn_firmware_pieces pieces
;
1032 const unsigned int api_max
= priv
->cfg
->ucode_api_max
;
1033 unsigned int api_ok
= priv
->cfg
->ucode_api_ok
;
1034 const unsigned int api_min
= priv
->cfg
->ucode_api_min
;
1038 struct iwlagn_ucode_capabilities ucode_capa
= {
1039 .max_probe_length
= 200,
1040 .standard_phy_calibration_size
=
1041 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE
,
1047 memset(&pieces
, 0, sizeof(pieces
));
1050 if (priv
->fw_index
<= api_ok
)
1052 "request for firmware file '%s' failed.\n",
1053 priv
->firmware_name
);
1057 IWL_DEBUG_INFO(priv
, "Loaded firmware file '%s' (%zd bytes).\n",
1058 priv
->firmware_name
, ucode_raw
->size
);
1060 /* Make sure that we got at least the API version number */
1061 if (ucode_raw
->size
< 4) {
1062 IWL_ERR(priv
, "File size way too small!\n");
1066 /* Data from ucode file: header followed by uCode images */
1067 ucode
= (struct iwl_ucode_header
*)ucode_raw
->data
;
1070 err
= iwlagn_load_legacy_firmware(priv
, ucode_raw
, &pieces
);
1072 err
= iwlagn_load_firmware(priv
, ucode_raw
, &pieces
,
1078 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
1079 build
= pieces
.build
;
1082 * api_ver should match the api version forming part of the
1083 * firmware filename ... but we don't check for that and only rely
1084 * on the API version read from firmware header from here on forward
1086 /* no api version check required for experimental uCode */
1087 if (priv
->fw_index
!= UCODE_EXPERIMENTAL_INDEX
) {
1088 if (api_ver
< api_min
|| api_ver
> api_max
) {
1090 "Driver unable to support your firmware API. "
1091 "Driver supports v%u, firmware is v%u.\n",
1096 if (api_ver
< api_ok
) {
1097 if (api_ok
!= api_max
)
1098 IWL_ERR(priv
, "Firmware has old API version, "
1099 "expected v%u through v%u, got v%u.\n",
1100 api_ok
, api_max
, api_ver
);
1102 IWL_ERR(priv
, "Firmware has old API version, "
1103 "expected v%u, got v%u.\n",
1105 IWL_ERR(priv
, "New firmware can be obtained from "
1106 "http://www.intellinuxwireless.org/.\n");
1111 sprintf(buildstr
, " build %u%s", build
,
1112 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
1117 IWL_INFO(priv
, "loaded firmware version %u.%u.%u.%u%s\n",
1118 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1119 IWL_UCODE_MINOR(priv
->ucode_ver
),
1120 IWL_UCODE_API(priv
->ucode_ver
),
1121 IWL_UCODE_SERIAL(priv
->ucode_ver
),
1124 snprintf(priv
->hw
->wiphy
->fw_version
,
1125 sizeof(priv
->hw
->wiphy
->fw_version
),
1127 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1128 IWL_UCODE_MINOR(priv
->ucode_ver
),
1129 IWL_UCODE_API(priv
->ucode_ver
),
1130 IWL_UCODE_SERIAL(priv
->ucode_ver
),
1134 * For any of the failures below (before allocating pci memory)
1135 * we will try to load a version with a smaller API -- maybe the
1136 * user just got a corrupted version of the latest API.
1139 IWL_DEBUG_INFO(priv
, "f/w package hdr ucode version raw = 0x%x\n",
1141 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime inst size = %Zd\n",
1143 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime data size = %Zd\n",
1145 IWL_DEBUG_INFO(priv
, "f/w package hdr init inst size = %Zd\n",
1147 IWL_DEBUG_INFO(priv
, "f/w package hdr init data size = %Zd\n",
1148 pieces
.init_data_size
);
1150 /* Verify that uCode images will fit in card's SRAM */
1151 if (pieces
.inst_size
> priv
->hw_params
.max_inst_size
) {
1152 IWL_ERR(priv
, "uCode instr len %Zd too large to fit in\n",
1157 if (pieces
.data_size
> priv
->hw_params
.max_data_size
) {
1158 IWL_ERR(priv
, "uCode data len %Zd too large to fit in\n",
1163 if (pieces
.init_size
> priv
->hw_params
.max_inst_size
) {
1164 IWL_ERR(priv
, "uCode init instr len %Zd too large to fit in\n",
1169 if (pieces
.init_data_size
> priv
->hw_params
.max_data_size
) {
1170 IWL_ERR(priv
, "uCode init data len %Zd too large to fit in\n",
1171 pieces
.init_data_size
);
1175 /* Allocate ucode buffers for card's bus-master loading ... */
1177 /* Runtime instructions and 2 copies of data:
1178 * 1) unmodified from disk
1179 * 2) backup cache for save/restore during power-downs */
1180 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_rt
.code
,
1181 pieces
.inst
, pieces
.inst_size
))
1183 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_rt
.data
,
1184 pieces
.data
, pieces
.data_size
))
1187 /* Initialization instructions and data */
1188 if (pieces
.init_size
&& pieces
.init_data_size
) {
1189 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_init
.code
,
1190 pieces
.init
, pieces
.init_size
))
1192 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_init
.data
,
1193 pieces
.init_data
, pieces
.init_data_size
))
1197 /* WoWLAN instructions and data */
1198 if (pieces
.wowlan_inst_size
&& pieces
.wowlan_data_size
) {
1199 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_wowlan
.code
,
1201 pieces
.wowlan_inst_size
))
1203 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_wowlan
.data
,
1205 pieces
.wowlan_data_size
))
1209 /* Now that we can no longer fail, copy information */
1212 * The (size - 16) / 12 formula is based on the information recorded
1213 * for each event, which is of mode 1 (including timestamp) for all
1214 * new microcodes that include this information.
1216 priv
->init_evtlog_ptr
= pieces
.init_evtlog_ptr
;
1217 if (pieces
.init_evtlog_size
)
1218 priv
->init_evtlog_size
= (pieces
.init_evtlog_size
- 16)/12;
1220 priv
->init_evtlog_size
=
1221 priv
->cfg
->base_params
->max_event_log_size
;
1222 priv
->init_errlog_ptr
= pieces
.init_errlog_ptr
;
1223 priv
->inst_evtlog_ptr
= pieces
.inst_evtlog_ptr
;
1224 if (pieces
.inst_evtlog_size
)
1225 priv
->inst_evtlog_size
= (pieces
.inst_evtlog_size
- 16)/12;
1227 priv
->inst_evtlog_size
=
1228 priv
->cfg
->base_params
->max_event_log_size
;
1229 priv
->inst_errlog_ptr
= pieces
.inst_errlog_ptr
;
1231 priv
->new_scan_threshold_behaviour
=
1232 !!(ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_NEWSCAN
);
1234 if (!(priv
->cfg
->sku
& EEPROM_SKU_CAP_IPAN_ENABLE
))
1235 ucode_capa
.flags
&= ~IWL_UCODE_TLV_FLAGS_PAN
;
1237 if (ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_PAN
) {
1238 priv
->sta_key_max_num
= STA_KEY_MAX_NUM_PAN
;
1239 priv
->cmd_queue
= IWL_IPAN_CMD_QUEUE_NUM
;
1241 priv
->sta_key_max_num
= STA_KEY_MAX_NUM
;
1242 priv
->cmd_queue
= IWL_DEFAULT_CMD_QUEUE_NUM
;
1246 * figure out the offset of chain noise reset and gain commands
1247 * base on the size of standard phy calibration commands table size
1249 if (ucode_capa
.standard_phy_calibration_size
>
1250 IWL_MAX_PHY_CALIBRATE_TBL_SIZE
)
1251 ucode_capa
.standard_phy_calibration_size
=
1252 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE
;
1254 priv
->phy_calib_chain_noise_reset_cmd
=
1255 ucode_capa
.standard_phy_calibration_size
;
1256 priv
->phy_calib_chain_noise_gain_cmd
=
1257 ucode_capa
.standard_phy_calibration_size
+ 1;
1259 /* initialize all valid contexts */
1260 iwl_init_context(priv
, ucode_capa
.flags
);
1262 /**************************************************
1263 * This is still part of probe() in a sense...
1265 * 9. Setup and register with mac80211 and debugfs
1266 **************************************************/
1267 err
= iwl_mac_setup_register(priv
, &ucode_capa
);
1271 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
1273 IWL_ERR(priv
, "failed to create debugfs files. Ignoring error: %d\n", err
);
1275 err
= sysfs_create_group(&(priv
->bus
->dev
->kobj
),
1276 &iwl_attribute_group
);
1278 IWL_ERR(priv
, "failed to create sysfs device attributes\n");
1282 /* We have our copies now, allow OS release its copies */
1283 release_firmware(ucode_raw
);
1284 complete(&priv
->firmware_loading_complete
);
1288 /* try next, if any */
1289 if (iwl_request_firmware(priv
, false))
1291 release_firmware(ucode_raw
);
1295 IWL_ERR(priv
, "failed to allocate pci memory\n");
1296 iwl_dealloc_ucode(priv
);
1298 complete(&priv
->firmware_loading_complete
);
1299 device_release_driver(priv
->bus
->dev
);
1300 release_firmware(ucode_raw
);
1303 static const char * const desc_lookup_text
[] = {
1308 "NMI_INTERRUPT_WDG",
1312 "HW_ERROR_TUNE_LOCK",
1313 "HW_ERROR_TEMPERATURE",
1314 "ILLEGAL_CHAN_FREQ",
1317 "NMI_INTERRUPT_HOST",
1318 "NMI_INTERRUPT_ACTION_PT",
1319 "NMI_INTERRUPT_UNKNOWN",
1320 "UCODE_VERSION_MISMATCH",
1321 "HW_ERROR_ABS_LOCK",
1322 "HW_ERROR_CAL_LOCK_FAIL",
1323 "NMI_INTERRUPT_INST_ACTION_PT",
1324 "NMI_INTERRUPT_DATA_ACTION_PT",
1326 "NMI_INTERRUPT_TRM",
1327 "NMI_INTERRUPT_BREAK_POINT",
1334 static struct { char *name
; u8 num
; } advanced_lookup
[] = {
1335 { "NMI_INTERRUPT_WDG", 0x34 },
1336 { "SYSASSERT", 0x35 },
1337 { "UCODE_VERSION_MISMATCH", 0x37 },
1338 { "BAD_COMMAND", 0x38 },
1339 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
1340 { "FATAL_ERROR", 0x3D },
1341 { "NMI_TRM_HW_ERR", 0x46 },
1342 { "NMI_INTERRUPT_TRM", 0x4C },
1343 { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
1344 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
1345 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
1346 { "NMI_INTERRUPT_HOST", 0x66 },
1347 { "NMI_INTERRUPT_ACTION_PT", 0x7C },
1348 { "NMI_INTERRUPT_UNKNOWN", 0x84 },
1349 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
1350 { "ADVANCED_SYSASSERT", 0 },
1353 static const char *desc_lookup(u32 num
)
1356 int max
= ARRAY_SIZE(desc_lookup_text
);
1359 return desc_lookup_text
[num
];
1361 max
= ARRAY_SIZE(advanced_lookup
) - 1;
1362 for (i
= 0; i
< max
; i
++) {
1363 if (advanced_lookup
[i
].num
== num
)
1366 return advanced_lookup
[i
].name
;
1369 #define ERROR_START_OFFSET (1 * sizeof(u32))
1370 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1372 void iwl_dump_nic_error_log(struct iwl_priv
*priv
)
1375 struct iwl_error_event_table table
;
1377 base
= priv
->device_pointers
.error_event_table
;
1378 if (priv
->ucode_type
== IWL_UCODE_INIT
) {
1380 base
= priv
->init_errlog_ptr
;
1383 base
= priv
->inst_errlog_ptr
;
1386 if (!iwlagn_hw_valid_rtc_data_addr(base
)) {
1388 "Not valid error log pointer 0x%08X for %s uCode\n",
1390 (priv
->ucode_type
== IWL_UCODE_INIT
)
1395 iwl_read_targ_mem_words(priv
, base
, &table
, sizeof(table
));
1397 if (ERROR_START_OFFSET
<= table
.valid
* ERROR_ELEM_SIZE
) {
1398 IWL_ERR(priv
, "Start IWL Error Log Dump:\n");
1399 IWL_ERR(priv
, "Status: 0x%08lX, count: %d\n",
1400 priv
->status
, table
.valid
);
1403 priv
->isr_stats
.err_code
= table
.error_id
;
1405 trace_iwlwifi_dev_ucode_error(priv
, table
.error_id
, table
.tsf_low
,
1406 table
.data1
, table
.data2
, table
.line
,
1407 table
.blink1
, table
.blink2
, table
.ilink1
,
1408 table
.ilink2
, table
.bcon_time
, table
.gp1
,
1409 table
.gp2
, table
.gp3
, table
.ucode_ver
,
1410 table
.hw_ver
, table
.brd_ver
);
1411 IWL_ERR(priv
, "0x%08X | %-28s\n", table
.error_id
,
1412 desc_lookup(table
.error_id
));
1413 IWL_ERR(priv
, "0x%08X | uPc\n", table
.pc
);
1414 IWL_ERR(priv
, "0x%08X | branchlink1\n", table
.blink1
);
1415 IWL_ERR(priv
, "0x%08X | branchlink2\n", table
.blink2
);
1416 IWL_ERR(priv
, "0x%08X | interruptlink1\n", table
.ilink1
);
1417 IWL_ERR(priv
, "0x%08X | interruptlink2\n", table
.ilink2
);
1418 IWL_ERR(priv
, "0x%08X | data1\n", table
.data1
);
1419 IWL_ERR(priv
, "0x%08X | data2\n", table
.data2
);
1420 IWL_ERR(priv
, "0x%08X | line\n", table
.line
);
1421 IWL_ERR(priv
, "0x%08X | beacon time\n", table
.bcon_time
);
1422 IWL_ERR(priv
, "0x%08X | tsf low\n", table
.tsf_low
);
1423 IWL_ERR(priv
, "0x%08X | tsf hi\n", table
.tsf_hi
);
1424 IWL_ERR(priv
, "0x%08X | time gp1\n", table
.gp1
);
1425 IWL_ERR(priv
, "0x%08X | time gp2\n", table
.gp2
);
1426 IWL_ERR(priv
, "0x%08X | time gp3\n", table
.gp3
);
1427 IWL_ERR(priv
, "0x%08X | uCode version\n", table
.ucode_ver
);
1428 IWL_ERR(priv
, "0x%08X | hw version\n", table
.hw_ver
);
1429 IWL_ERR(priv
, "0x%08X | board version\n", table
.brd_ver
);
1430 IWL_ERR(priv
, "0x%08X | hcmd\n", table
.hcmd
);
1433 #define EVENT_START_OFFSET (4 * sizeof(u32))
1436 * iwl_print_event_log - Dump error event log to syslog
1439 static int iwl_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
1440 u32 num_events
, u32 mode
,
1441 int pos
, char **buf
, size_t bufsz
)
1444 u32 base
; /* SRAM byte address of event log header */
1445 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
1446 u32 ptr
; /* SRAM byte address of log data */
1447 u32 ev
, time
, data
; /* event log data */
1448 unsigned long reg_flags
;
1450 if (num_events
== 0)
1453 base
= priv
->device_pointers
.log_event_table
;
1454 if (priv
->ucode_type
== IWL_UCODE_INIT
) {
1456 base
= priv
->init_evtlog_ptr
;
1459 base
= priv
->inst_evtlog_ptr
;
1463 event_size
= 2 * sizeof(u32
);
1465 event_size
= 3 * sizeof(u32
);
1467 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
1469 /* Make sure device is powered up for SRAM reads */
1470 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
1471 iwl_grab_nic_access(priv
);
1473 /* Set starting address; reads will auto-increment */
1474 iwl_write32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
1477 /* "time" is actually "data" for mode 0 (no timestamp).
1478 * place event id # at far right for easier visual parsing. */
1479 for (i
= 0; i
< num_events
; i
++) {
1480 ev
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
1481 time
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
1485 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
1486 "EVT_LOG:0x%08x:%04u\n",
1489 trace_iwlwifi_dev_ucode_event(priv
, 0,
1491 IWL_ERR(priv
, "EVT_LOG:0x%08x:%04u\n",
1495 data
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
1497 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
1498 "EVT_LOGT:%010u:0x%08x:%04u\n",
1501 IWL_ERR(priv
, "EVT_LOGT:%010u:0x%08x:%04u\n",
1503 trace_iwlwifi_dev_ucode_event(priv
, time
,
1509 /* Allow device to power down */
1510 iwl_release_nic_access(priv
);
1511 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
1516 * iwl_print_last_event_logs - Dump the newest # of event log to syslog
1518 static int iwl_print_last_event_logs(struct iwl_priv
*priv
, u32 capacity
,
1519 u32 num_wraps
, u32 next_entry
,
1521 int pos
, char **buf
, size_t bufsz
)
1524 * display the newest DEFAULT_LOG_ENTRIES entries
1525 * i.e the entries just before the next ont that uCode would fill.
1528 if (next_entry
< size
) {
1529 pos
= iwl_print_event_log(priv
,
1530 capacity
- (size
- next_entry
),
1531 size
- next_entry
, mode
,
1533 pos
= iwl_print_event_log(priv
, 0,
1537 pos
= iwl_print_event_log(priv
, next_entry
- size
,
1538 size
, mode
, pos
, buf
, bufsz
);
1540 if (next_entry
< size
) {
1541 pos
= iwl_print_event_log(priv
, 0, next_entry
,
1542 mode
, pos
, buf
, bufsz
);
1544 pos
= iwl_print_event_log(priv
, next_entry
- size
,
1545 size
, mode
, pos
, buf
, bufsz
);
1551 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
1553 int iwl_dump_nic_event_log(struct iwl_priv
*priv
, bool full_log
,
1554 char **buf
, bool display
)
1556 u32 base
; /* SRAM byte address of event log header */
1557 u32 capacity
; /* event log capacity in # entries */
1558 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
1559 u32 num_wraps
; /* # times uCode wrapped to top of log */
1560 u32 next_entry
; /* index of next entry to be written by uCode */
1561 u32 size
; /* # entries that we'll print */
1566 base
= priv
->device_pointers
.log_event_table
;
1567 if (priv
->ucode_type
== IWL_UCODE_INIT
) {
1568 logsize
= priv
->init_evtlog_size
;
1570 base
= priv
->init_evtlog_ptr
;
1572 logsize
= priv
->inst_evtlog_size
;
1574 base
= priv
->inst_evtlog_ptr
;
1577 if (!iwlagn_hw_valid_rtc_data_addr(base
)) {
1579 "Invalid event log pointer 0x%08X for %s uCode\n",
1581 (priv
->ucode_type
== IWL_UCODE_INIT
)
1586 /* event log header */
1587 capacity
= iwl_read_targ_mem(priv
, base
);
1588 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
1589 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
1590 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
1592 if (capacity
> logsize
) {
1593 IWL_ERR(priv
, "Log capacity %d is bogus, limit to %d entries\n",
1598 if (next_entry
> logsize
) {
1599 IWL_ERR(priv
, "Log write index %d is bogus, limit to %d\n",
1600 next_entry
, logsize
);
1601 next_entry
= logsize
;
1604 size
= num_wraps
? capacity
: next_entry
;
1606 /* bail out if nothing in log */
1608 IWL_ERR(priv
, "Start IWL Event Log Dump: nothing in log\n");
1612 /* enable/disable bt channel inhibition */
1613 priv
->bt_ch_announce
= iwlagn_bt_ch_announce
;
1615 #ifdef CONFIG_IWLWIFI_DEBUG
1616 if (!(iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) && !full_log
)
1617 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
1618 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
1620 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
1621 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
1623 IWL_ERR(priv
, "Start IWL Event Log Dump: display last %u entries\n",
1626 #ifdef CONFIG_IWLWIFI_DEBUG
1629 bufsz
= capacity
* 48;
1632 *buf
= kmalloc(bufsz
, GFP_KERNEL
);
1636 if ((iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) || full_log
) {
1638 * if uCode has wrapped back to top of log,
1639 * start at the oldest entry,
1640 * i.e the next one that uCode would fill.
1643 pos
= iwl_print_event_log(priv
, next_entry
,
1644 capacity
- next_entry
, mode
,
1646 /* (then/else) start at top of log */
1647 pos
= iwl_print_event_log(priv
, 0,
1648 next_entry
, mode
, pos
, buf
, bufsz
);
1650 pos
= iwl_print_last_event_logs(priv
, capacity
, num_wraps
,
1651 next_entry
, size
, mode
,
1654 pos
= iwl_print_last_event_logs(priv
, capacity
, num_wraps
,
1655 next_entry
, size
, mode
,
1661 static void iwl_rf_kill_ct_config(struct iwl_priv
*priv
)
1663 struct iwl_ct_kill_config cmd
;
1664 struct iwl_ct_kill_throttling_config adv_cmd
;
1665 unsigned long flags
;
1668 spin_lock_irqsave(&priv
->lock
, flags
);
1669 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
1670 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
1671 spin_unlock_irqrestore(&priv
->lock
, flags
);
1672 priv
->thermal_throttle
.ct_kill_toggle
= false;
1674 if (priv
->cfg
->base_params
->support_ct_kill_exit
) {
1675 adv_cmd
.critical_temperature_enter
=
1676 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
1677 adv_cmd
.critical_temperature_exit
=
1678 cpu_to_le32(priv
->hw_params
.ct_kill_exit_threshold
);
1680 ret
= trans_send_cmd_pdu(&priv
->trans
,
1681 REPLY_CT_KILL_CONFIG_CMD
,
1682 CMD_SYNC
, sizeof(adv_cmd
), &adv_cmd
);
1684 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1686 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1688 "critical temperature enter is %d,"
1690 priv
->hw_params
.ct_kill_threshold
,
1691 priv
->hw_params
.ct_kill_exit_threshold
);
1693 cmd
.critical_temperature_R
=
1694 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
1696 ret
= trans_send_cmd_pdu(&priv
->trans
,
1697 REPLY_CT_KILL_CONFIG_CMD
,
1698 CMD_SYNC
, sizeof(cmd
), &cmd
);
1700 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1702 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1704 "critical temperature is %d\n",
1705 priv
->hw_params
.ct_kill_threshold
);
1709 static int iwlagn_send_calib_cfg_rt(struct iwl_priv
*priv
, u32 cfg
)
1711 struct iwl_calib_cfg_cmd calib_cfg_cmd
;
1712 struct iwl_host_cmd cmd
= {
1713 .id
= CALIBRATION_CFG_CMD
,
1714 .len
= { sizeof(struct iwl_calib_cfg_cmd
), },
1715 .data
= { &calib_cfg_cmd
, },
1718 memset(&calib_cfg_cmd
, 0, sizeof(calib_cfg_cmd
));
1719 calib_cfg_cmd
.ucd_calib_cfg
.once
.is_enable
= IWL_CALIB_INIT_CFG_ALL
;
1720 calib_cfg_cmd
.ucd_calib_cfg
.once
.start
= cpu_to_le32(cfg
);
1722 return trans_send_cmd(&priv
->trans
, &cmd
);
1726 static int iwlagn_send_tx_ant_config(struct iwl_priv
*priv
, u8 valid_tx_ant
)
1728 struct iwl_tx_ant_config_cmd tx_ant_cmd
= {
1729 .valid
= cpu_to_le32(valid_tx_ant
),
1732 if (IWL_UCODE_API(priv
->ucode_ver
) > 1) {
1733 IWL_DEBUG_HC(priv
, "select valid tx ant: %u\n", valid_tx_ant
);
1734 return trans_send_cmd_pdu(&priv
->trans
,
1735 TX_ANT_CONFIGURATION_CMD
,
1737 sizeof(struct iwl_tx_ant_config_cmd
),
1740 IWL_DEBUG_HC(priv
, "TX_ANT_CONFIGURATION_CMD not supported\n");
1746 * iwl_alive_start - called after REPLY_ALIVE notification received
1747 * from protocol/runtime uCode (initialization uCode's
1748 * Alive gets handled by iwl_init_alive_start()).
1750 int iwl_alive_start(struct iwl_priv
*priv
)
1753 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
1755 /*TODO: this should go to the transport layer */
1756 iwl_reset_ict(priv
);
1758 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
1760 /* After the ALIVE response, we can send host commands to the uCode */
1761 set_bit(STATUS_ALIVE
, &priv
->status
);
1763 /* Enable watchdog to monitor the driver tx queues */
1764 iwl_setup_watchdog(priv
);
1766 if (iwl_is_rfkill(priv
))
1769 /* download priority table before any calibration request */
1770 if (priv
->cfg
->bt_params
&&
1771 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
1772 /* Configure Bluetooth device coexistence support */
1773 if (priv
->cfg
->bt_params
->bt_sco_disable
)
1774 priv
->bt_enable_pspoll
= false;
1776 priv
->bt_enable_pspoll
= true;
1778 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
1779 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
1780 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
1781 iwlagn_send_advance_bt_config(priv
);
1782 priv
->bt_valid
= IWLAGN_BT_VALID_ENABLE_FLAGS
;
1783 priv
->cur_rssi_ctx
= NULL
;
1785 iwlagn_send_prio_tbl(priv
);
1787 /* FIXME: w/a to force change uCode BT state machine */
1788 ret
= iwlagn_send_bt_env(priv
, IWL_BT_COEX_ENV_OPEN
,
1789 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
1792 ret
= iwlagn_send_bt_env(priv
, IWL_BT_COEX_ENV_CLOSE
,
1793 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
1798 * default is 2-wire BT coexexistence support
1800 iwl_send_bt_config(priv
);
1803 if (priv
->hw_params
.calib_rt_cfg
)
1804 iwlagn_send_calib_cfg_rt(priv
, priv
->hw_params
.calib_rt_cfg
);
1806 ieee80211_wake_queues(priv
->hw
);
1808 priv
->active_rate
= IWL_RATES_MASK
;
1810 /* Configure Tx antenna selection based on H/W config */
1811 iwlagn_send_tx_ant_config(priv
, priv
->cfg
->valid_tx_ant
);
1813 if (iwl_is_associated_ctx(ctx
) && !priv
->wowlan
) {
1814 struct iwl_rxon_cmd
*active_rxon
=
1815 (struct iwl_rxon_cmd
*)&ctx
->active
;
1816 /* apply any changes in staging */
1817 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
1818 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1820 struct iwl_rxon_context
*tmp
;
1821 /* Initialize our rx_config data */
1822 for_each_context(priv
, tmp
)
1823 iwl_connection_init_rx_config(priv
, tmp
);
1825 iwlagn_set_rxon_chain(priv
, ctx
);
1828 if (!priv
->wowlan
) {
1829 /* WoWLAN ucode will not reply in the same way, skip it */
1830 iwl_reset_run_time_calib(priv
);
1833 set_bit(STATUS_READY
, &priv
->status
);
1835 /* Configure the adapter for unassociated operation */
1836 ret
= iwlagn_commit_rxon(priv
, ctx
);
1840 /* At this point, the NIC is initialized and operational */
1841 iwl_rf_kill_ct_config(priv
);
1843 IWL_DEBUG_INFO(priv
, "ALIVE processing complete.\n");
1845 return iwl_power_update_mode(priv
, true);
1848 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
);
1850 static void __iwl_down(struct iwl_priv
*priv
)
1854 IWL_DEBUG_INFO(priv
, DRV_NAME
" is going down\n");
1856 iwl_scan_cancel_timeout(priv
, 200);
1858 exit_pending
= test_and_set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
1860 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
1861 * to prevent rearm timer */
1862 del_timer_sync(&priv
->watchdog
);
1864 iwl_clear_ucode_stations(priv
, NULL
);
1865 iwl_dealloc_bcast_stations(priv
);
1866 iwl_clear_driver_stations(priv
);
1868 /* reset BT coex data */
1869 priv
->bt_status
= 0;
1870 priv
->cur_rssi_ctx
= NULL
;
1871 priv
->bt_is_sco
= 0;
1872 if (priv
->cfg
->bt_params
)
1873 priv
->bt_traffic_load
=
1874 priv
->cfg
->bt_params
->bt_init_traffic_load
;
1876 priv
->bt_traffic_load
= 0;
1877 priv
->bt_full_concurrent
= false;
1878 priv
->bt_ci_compliance
= 0;
1880 /* Wipe out the EXIT_PENDING status bit if we are not actually
1881 * exiting the module */
1883 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
1885 if (priv
->mac80211_registered
)
1886 ieee80211_stop_queues(priv
->hw
);
1888 /* Clear out all status bits but a few that are stable across reset */
1889 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
1891 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
1892 STATUS_GEO_CONFIGURED
|
1893 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
1895 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
1896 STATUS_EXIT_PENDING
;
1898 trans_stop_device(&priv
->trans
);
1900 dev_kfree_skb(priv
->beacon_skb
);
1901 priv
->beacon_skb
= NULL
;
1904 static void iwl_down(struct iwl_priv
*priv
)
1906 mutex_lock(&priv
->mutex
);
1908 mutex_unlock(&priv
->mutex
);
1910 iwl_cancel_deferred_work(priv
);
1913 #define MAX_HW_RESTARTS 5
1915 static int __iwl_up(struct iwl_priv
*priv
)
1917 struct iwl_rxon_context
*ctx
;
1920 lockdep_assert_held(&priv
->mutex
);
1922 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
1923 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
1927 for_each_context(priv
, ctx
) {
1928 ret
= iwlagn_alloc_bcast_station(priv
, ctx
);
1930 iwl_dealloc_bcast_stations(priv
);
1935 ret
= iwlagn_run_init_ucode(priv
);
1937 IWL_ERR(priv
, "Failed to run INIT ucode: %d\n", ret
);
1941 ret
= iwlagn_load_ucode_wait_alive(priv
,
1945 IWL_ERR(priv
, "Failed to start RT ucode: %d\n", ret
);
1949 ret
= iwl_alive_start(priv
);
1955 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
1957 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
1959 IWL_ERR(priv
, "Unable to initialize device.\n");
1964 /*****************************************************************************
1966 * Workqueue callbacks
1968 *****************************************************************************/
1970 static void iwl_bg_run_time_calib_work(struct work_struct
*work
)
1972 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
1973 run_time_calib_work
);
1975 mutex_lock(&priv
->mutex
);
1977 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
1978 test_bit(STATUS_SCANNING
, &priv
->status
)) {
1979 mutex_unlock(&priv
->mutex
);
1983 if (priv
->start_calib
) {
1984 iwl_chain_noise_calibration(priv
);
1985 iwl_sensitivity_calibration(priv
);
1988 mutex_unlock(&priv
->mutex
);
1991 static void iwlagn_prepare_restart(struct iwl_priv
*priv
)
1993 struct iwl_rxon_context
*ctx
;
1994 bool bt_full_concurrent
;
1995 u8 bt_ci_compliance
;
2000 lockdep_assert_held(&priv
->mutex
);
2002 for_each_context(priv
, ctx
)
2007 * __iwl_down() will clear the BT status variables,
2008 * which is correct, but when we restart we really
2009 * want to keep them so restore them afterwards.
2011 * The restart process will later pick them up and
2012 * re-configure the hw when we reconfigure the BT
2015 bt_full_concurrent
= priv
->bt_full_concurrent
;
2016 bt_ci_compliance
= priv
->bt_ci_compliance
;
2017 bt_load
= priv
->bt_traffic_load
;
2018 bt_status
= priv
->bt_status
;
2019 bt_is_sco
= priv
->bt_is_sco
;
2023 priv
->bt_full_concurrent
= bt_full_concurrent
;
2024 priv
->bt_ci_compliance
= bt_ci_compliance
;
2025 priv
->bt_traffic_load
= bt_load
;
2026 priv
->bt_status
= bt_status
;
2027 priv
->bt_is_sco
= bt_is_sco
;
2030 static void iwl_bg_restart(struct work_struct
*data
)
2032 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
2034 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2037 if (test_and_clear_bit(STATUS_FW_ERROR
, &priv
->status
)) {
2038 mutex_lock(&priv
->mutex
);
2039 iwlagn_prepare_restart(priv
);
2040 mutex_unlock(&priv
->mutex
);
2041 iwl_cancel_deferred_work(priv
);
2042 ieee80211_restart_hw(priv
->hw
);
2048 static int iwl_mac_offchannel_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
2049 struct ieee80211_channel
*chan
,
2050 enum nl80211_channel_type channel_type
,
2053 struct iwl_priv
*priv
= hw
->priv
;
2056 /* Not supported if we don't have PAN */
2057 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
))) {
2062 /* Not supported on pre-P2P firmware */
2063 if (!(priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
&
2064 BIT(NL80211_IFTYPE_P2P_CLIENT
))) {
2069 mutex_lock(&priv
->mutex
);
2071 if (!priv
->contexts
[IWL_RXON_CTX_PAN
].is_active
) {
2073 * If the PAN context is free, use the normal
2074 * way of doing remain-on-channel offload + TX.
2080 /* TODO: queue up if scanning? */
2081 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
2082 priv
->offchan_tx_skb
) {
2088 * max_scan_ie_len doesn't include the blank SSID or the header,
2089 * so need to add that again here.
2091 if (skb
->len
> hw
->wiphy
->max_scan_ie_len
+ 24 + 2) {
2096 priv
->offchan_tx_skb
= skb
;
2097 priv
->offchan_tx_timeout
= wait
;
2098 priv
->offchan_tx_chan
= chan
;
2100 ret
= iwl_scan_initiate(priv
, priv
->contexts
[IWL_RXON_CTX_PAN
].vif
,
2101 IWL_SCAN_OFFCH_TX
, chan
->band
);
2103 priv
->offchan_tx_skb
= NULL
;
2105 mutex_unlock(&priv
->mutex
);
2113 static int iwl_mac_offchannel_tx_cancel_wait(struct ieee80211_hw
*hw
)
2115 struct iwl_priv
*priv
= hw
->priv
;
2118 mutex_lock(&priv
->mutex
);
2120 if (!priv
->offchan_tx_skb
) {
2125 priv
->offchan_tx_skb
= NULL
;
2127 ret
= iwl_scan_cancel_timeout(priv
, 200);
2131 mutex_unlock(&priv
->mutex
);
2136 /*****************************************************************************
2138 * mac80211 entry point functions
2140 *****************************************************************************/
2142 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits
[] = {
2145 .types
= BIT(NL80211_IFTYPE_STATION
),
2149 .types
= BIT(NL80211_IFTYPE_AP
),
2153 static const struct ieee80211_iface_limit iwlagn_2sta_limits
[] = {
2156 .types
= BIT(NL80211_IFTYPE_STATION
),
2160 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits
[] = {
2163 .types
= BIT(NL80211_IFTYPE_STATION
),
2167 .types
= BIT(NL80211_IFTYPE_P2P_GO
) |
2168 BIT(NL80211_IFTYPE_AP
),
2172 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits
[] = {
2175 .types
= BIT(NL80211_IFTYPE_STATION
),
2179 .types
= BIT(NL80211_IFTYPE_P2P_CLIENT
),
2183 static const struct ieee80211_iface_combination
2184 iwlagn_iface_combinations_dualmode
[] = {
2185 { .num_different_channels
= 1,
2186 .max_interfaces
= 2,
2187 .beacon_int_infra_match
= true,
2188 .limits
= iwlagn_sta_ap_limits
,
2189 .n_limits
= ARRAY_SIZE(iwlagn_sta_ap_limits
),
2191 { .num_different_channels
= 1,
2192 .max_interfaces
= 2,
2193 .limits
= iwlagn_2sta_limits
,
2194 .n_limits
= ARRAY_SIZE(iwlagn_2sta_limits
),
2198 static const struct ieee80211_iface_combination
2199 iwlagn_iface_combinations_p2p
[] = {
2200 { .num_different_channels
= 1,
2201 .max_interfaces
= 2,
2202 .beacon_int_infra_match
= true,
2203 .limits
= iwlagn_p2p_sta_go_limits
,
2204 .n_limits
= ARRAY_SIZE(iwlagn_p2p_sta_go_limits
),
2206 { .num_different_channels
= 1,
2207 .max_interfaces
= 2,
2208 .limits
= iwlagn_p2p_2sta_limits
,
2209 .n_limits
= ARRAY_SIZE(iwlagn_p2p_2sta_limits
),
2214 * Not a mac80211 entry point function, but it fits in with all the
2215 * other mac80211 functions grouped here.
2217 static int iwl_mac_setup_register(struct iwl_priv
*priv
,
2218 struct iwlagn_ucode_capabilities
*capa
)
2221 struct ieee80211_hw
*hw
= priv
->hw
;
2222 struct iwl_rxon_context
*ctx
;
2224 hw
->rate_control_algorithm
= "iwl-agn-rs";
2226 /* Tell mac80211 our characteristics */
2227 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
2228 IEEE80211_HW_AMPDU_AGGREGATION
|
2229 IEEE80211_HW_NEED_DTIM_PERIOD
|
2230 IEEE80211_HW_SPECTRUM_MGMT
|
2231 IEEE80211_HW_REPORTS_TX_ACK_STATUS
;
2233 hw
->max_tx_aggregation_subframes
= LINK_QUAL_AGG_FRAME_LIMIT_DEF
;
2235 hw
->flags
|= IEEE80211_HW_SUPPORTS_PS
|
2236 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
;
2238 if (priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
)
2239 hw
->flags
|= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
2240 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
2242 if (capa
->flags
& IWL_UCODE_TLV_FLAGS_MFP
)
2243 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
2245 hw
->sta_data_size
= sizeof(struct iwl_station_priv
);
2246 hw
->vif_data_size
= sizeof(struct iwl_vif_priv
);
2248 for_each_context(priv
, ctx
) {
2249 hw
->wiphy
->interface_modes
|= ctx
->interface_modes
;
2250 hw
->wiphy
->interface_modes
|= ctx
->exclusive_interface_modes
;
2253 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
2255 if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)) {
2256 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_p2p
;
2257 hw
->wiphy
->n_iface_combinations
=
2258 ARRAY_SIZE(iwlagn_iface_combinations_p2p
);
2259 } else if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_AP
)) {
2260 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_dualmode
;
2261 hw
->wiphy
->n_iface_combinations
=
2262 ARRAY_SIZE(iwlagn_iface_combinations_dualmode
);
2265 hw
->wiphy
->max_remain_on_channel_duration
= 1000;
2267 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
|
2268 WIPHY_FLAG_DISABLE_BEACON_HINTS
|
2269 WIPHY_FLAG_IBSS_RSN
;
2271 if (priv
->ucode_wowlan
.code
.len
&& device_can_wakeup(priv
->bus
->dev
)) {
2272 hw
->wiphy
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
2273 WIPHY_WOWLAN_DISCONNECT
|
2274 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
2275 WIPHY_WOWLAN_RFKILL_RELEASE
;
2276 if (!iwlagn_mod_params
.sw_crypto
)
2277 hw
->wiphy
->wowlan
.flags
|=
2278 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
2279 WIPHY_WOWLAN_GTK_REKEY_FAILURE
;
2281 hw
->wiphy
->wowlan
.n_patterns
= IWLAGN_WOWLAN_MAX_PATTERNS
;
2282 hw
->wiphy
->wowlan
.pattern_min_len
=
2283 IWLAGN_WOWLAN_MIN_PATTERN_LEN
;
2284 hw
->wiphy
->wowlan
.pattern_max_len
=
2285 IWLAGN_WOWLAN_MAX_PATTERN_LEN
;
2288 if (iwlagn_mod_params
.power_save
)
2289 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
2291 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
2293 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
2294 /* we create the 802.11 header and a zero-length SSID element */
2295 hw
->wiphy
->max_scan_ie_len
= capa
->max_probe_length
- 24 - 2;
2297 /* Default value; 4 EDCA QOS priorities */
2300 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
2302 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
2303 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
2304 &priv
->bands
[IEEE80211_BAND_2GHZ
];
2305 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
2306 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
2307 &priv
->bands
[IEEE80211_BAND_5GHZ
];
2309 iwl_leds_init(priv
);
2311 ret
= ieee80211_register_hw(priv
->hw
);
2313 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
2316 priv
->mac80211_registered
= 1;
2322 static int iwlagn_mac_start(struct ieee80211_hw
*hw
)
2324 struct iwl_priv
*priv
= hw
->priv
;
2327 IWL_DEBUG_MAC80211(priv
, "enter\n");
2329 /* we should be verifying the device is ready to be opened */
2330 mutex_lock(&priv
->mutex
);
2331 ret
= __iwl_up(priv
);
2332 mutex_unlock(&priv
->mutex
);
2336 IWL_DEBUG_INFO(priv
, "Start UP work done.\n");
2338 /* Now we should be done, and the READY bit should be set. */
2339 if (WARN_ON(!test_bit(STATUS_READY
, &priv
->status
)))
2342 iwlagn_led_enable(priv
);
2345 IWL_DEBUG_MAC80211(priv
, "leave\n");
2349 static void iwlagn_mac_stop(struct ieee80211_hw
*hw
)
2351 struct iwl_priv
*priv
= hw
->priv
;
2353 IWL_DEBUG_MAC80211(priv
, "enter\n");
2362 flush_workqueue(priv
->workqueue
);
2364 /* User space software may expect getting rfkill changes
2365 * even if interface is down */
2366 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
2367 iwl_enable_rfkill_int(priv
);
2369 IWL_DEBUG_MAC80211(priv
, "leave\n");
2373 static int iwlagn_send_patterns(struct iwl_priv
*priv
,
2374 struct cfg80211_wowlan
*wowlan
)
2376 struct iwlagn_wowlan_patterns_cmd
*pattern_cmd
;
2377 struct iwl_host_cmd cmd
= {
2378 .id
= REPLY_WOWLAN_PATTERNS
,
2379 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
2384 if (!wowlan
->n_patterns
)
2387 cmd
.len
[0] = sizeof(*pattern_cmd
) +
2388 wowlan
->n_patterns
* sizeof(struct iwlagn_wowlan_pattern
);
2390 pattern_cmd
= kmalloc(cmd
.len
[0], GFP_KERNEL
);
2394 pattern_cmd
->n_patterns
= cpu_to_le32(wowlan
->n_patterns
);
2396 for (i
= 0; i
< wowlan
->n_patterns
; i
++) {
2397 int mask_len
= DIV_ROUND_UP(wowlan
->patterns
[i
].pattern_len
, 8);
2399 memcpy(&pattern_cmd
->patterns
[i
].mask
,
2400 wowlan
->patterns
[i
].mask
, mask_len
);
2401 memcpy(&pattern_cmd
->patterns
[i
].pattern
,
2402 wowlan
->patterns
[i
].pattern
,
2403 wowlan
->patterns
[i
].pattern_len
);
2404 pattern_cmd
->patterns
[i
].mask_size
= mask_len
;
2405 pattern_cmd
->patterns
[i
].pattern_size
=
2406 wowlan
->patterns
[i
].pattern_len
;
2409 cmd
.data
[0] = pattern_cmd
;
2410 err
= trans_send_cmd(&priv
->trans
, &cmd
);
2416 static void iwlagn_mac_set_rekey_data(struct ieee80211_hw
*hw
,
2417 struct ieee80211_vif
*vif
,
2418 struct cfg80211_gtk_rekey_data
*data
)
2420 struct iwl_priv
*priv
= hw
->priv
;
2422 if (iwlagn_mod_params
.sw_crypto
)
2425 mutex_lock(&priv
->mutex
);
2427 if (priv
->contexts
[IWL_RXON_CTX_BSS
].vif
!= vif
)
2430 memcpy(priv
->kek
, data
->kek
, NL80211_KEK_LEN
);
2431 memcpy(priv
->kck
, data
->kck
, NL80211_KCK_LEN
);
2432 priv
->replay_ctr
= cpu_to_le64(be64_to_cpup((__be64
*)&data
->replay_ctr
));
2433 priv
->have_rekey_data
= true;
2436 mutex_unlock(&priv
->mutex
);
2439 struct wowlan_key_data
{
2440 struct iwl_rxon_context
*ctx
;
2441 struct iwlagn_wowlan_rsc_tsc_params_cmd
*rsc_tsc
;
2442 struct iwlagn_wowlan_tkip_params_cmd
*tkip
;
2444 bool error
, use_rsc_tsc
, use_tkip
;
2448 static void iwlagn_convert_p1k(u16
*p1k
, __le16
*out
)
2452 for (i
= 0; i
< IWLAGN_P1K_SIZE
; i
++)
2453 out
[i
] = cpu_to_le16(p1k
[i
]);
2456 static void iwlagn_wowlan_program_keys(struct ieee80211_hw
*hw
,
2457 struct ieee80211_vif
*vif
,
2458 struct ieee80211_sta
*sta
,
2459 struct ieee80211_key_conf
*key
,
2462 struct iwl_priv
*priv
= hw
->priv
;
2463 struct wowlan_key_data
*data
= _data
;
2464 struct iwl_rxon_context
*ctx
= data
->ctx
;
2465 struct aes_sc
*aes_sc
, *aes_tx_sc
= NULL
;
2466 struct tkip_sc
*tkip_sc
, *tkip_tx_sc
= NULL
;
2467 struct iwlagn_p1k_cache
*rx_p1ks
;
2469 struct ieee80211_key_seq seq
;
2470 u32 cur_rx_iv32
= 0;
2471 u16 p1k
[IWLAGN_P1K_SIZE
];
2474 mutex_lock(&priv
->mutex
);
2476 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
2477 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) &&
2478 !sta
&& !ctx
->key_mapping_keys
)
2479 ret
= iwl_set_default_wep_key(priv
, ctx
, key
);
2481 ret
= iwl_set_dynamic_key(priv
, ctx
, key
, sta
);
2484 IWL_ERR(priv
, "Error setting key during suspend!\n");
2488 switch (key
->cipher
) {
2489 case WLAN_CIPHER_SUITE_TKIP
:
2491 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.unicast_rsc
;
2492 tkip_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.tkip
.tsc
;
2494 rx_p1ks
= data
->tkip
->rx_uni
;
2496 ieee80211_get_key_tx_seq(key
, &seq
);
2497 tkip_tx_sc
->iv16
= cpu_to_le16(seq
.tkip
.iv16
);
2498 tkip_tx_sc
->iv32
= cpu_to_le32(seq
.tkip
.iv32
);
2500 ieee80211_get_tkip_p1k_iv(key
, seq
.tkip
.iv32
, p1k
);
2501 iwlagn_convert_p1k(p1k
, data
->tkip
->tx
.p1k
);
2503 memcpy(data
->tkip
->mic_keys
.tx
,
2504 &key
->key
[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY
],
2505 IWLAGN_MIC_KEY_SIZE
);
2507 rx_mic_key
= data
->tkip
->mic_keys
.rx_unicast
;
2509 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.multicast_rsc
;
2510 rx_p1ks
= data
->tkip
->rx_multi
;
2511 rx_mic_key
= data
->tkip
->mic_keys
.rx_mcast
;
2515 * For non-QoS this relies on the fact that both the uCode and
2516 * mac80211 use TID 0 (as they need to to avoid replay attacks)
2517 * for checking the IV in the frames.
2519 for (i
= 0; i
< IWLAGN_NUM_RSC
; i
++) {
2520 ieee80211_get_key_rx_seq(key
, i
, &seq
);
2521 tkip_sc
[i
].iv16
= cpu_to_le16(seq
.tkip
.iv16
);
2522 tkip_sc
[i
].iv32
= cpu_to_le32(seq
.tkip
.iv32
);
2523 /* wrapping isn't allowed, AP must rekey */
2524 if (seq
.tkip
.iv32
> cur_rx_iv32
)
2525 cur_rx_iv32
= seq
.tkip
.iv32
;
2528 ieee80211_get_tkip_rx_p1k(key
, data
->bssid
, cur_rx_iv32
, p1k
);
2529 iwlagn_convert_p1k(p1k
, rx_p1ks
[0].p1k
);
2530 ieee80211_get_tkip_rx_p1k(key
, data
->bssid
,
2531 cur_rx_iv32
+ 1, p1k
);
2532 iwlagn_convert_p1k(p1k
, rx_p1ks
[1].p1k
);
2535 &key
->key
[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
],
2536 IWLAGN_MIC_KEY_SIZE
);
2538 data
->use_tkip
= true;
2539 data
->use_rsc_tsc
= true;
2541 case WLAN_CIPHER_SUITE_CCMP
:
2543 u8
*pn
= seq
.ccmp
.pn
;
2545 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.unicast_rsc
;
2546 aes_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.aes
.tsc
;
2548 ieee80211_get_key_tx_seq(key
, &seq
);
2549 aes_tx_sc
->pn
= cpu_to_le64(
2552 ((u64
)pn
[3] << 16) |
2553 ((u64
)pn
[2] << 24) |
2554 ((u64
)pn
[1] << 32) |
2555 ((u64
)pn
[0] << 40));
2557 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.multicast_rsc
;
2560 * For non-QoS this relies on the fact that both the uCode and
2561 * mac80211 use TID 0 for checking the IV in the frames.
2563 for (i
= 0; i
< IWLAGN_NUM_RSC
; i
++) {
2564 u8
*pn
= seq
.ccmp
.pn
;
2566 ieee80211_get_key_rx_seq(key
, i
, &seq
);
2567 aes_sc
->pn
= cpu_to_le64(
2570 ((u64
)pn
[3] << 16) |
2571 ((u64
)pn
[2] << 24) |
2572 ((u64
)pn
[1] << 32) |
2573 ((u64
)pn
[0] << 40));
2575 data
->use_rsc_tsc
= true;
2579 mutex_unlock(&priv
->mutex
);
2582 static int iwlagn_mac_suspend(struct ieee80211_hw
*hw
,
2583 struct cfg80211_wowlan
*wowlan
)
2585 struct iwl_priv
*priv
= hw
->priv
;
2586 struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd
;
2587 struct iwl_rxon_cmd rxon
;
2588 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2589 struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd
;
2590 struct iwlagn_wowlan_tkip_params_cmd tkip_cmd
= {};
2591 struct wowlan_key_data key_data
= {
2593 .bssid
= ctx
->active
.bssid_addr
,
2594 .use_rsc_tsc
= false,
2601 if (WARN_ON(!wowlan
))
2604 mutex_lock(&priv
->mutex
);
2606 /* Don't attempt WoWLAN when not associated, tear down instead. */
2607 if (!ctx
->vif
|| ctx
->vif
->type
!= NL80211_IFTYPE_STATION
||
2608 !iwl_is_associated_ctx(ctx
)) {
2613 key_data
.rsc_tsc
= kzalloc(sizeof(*key_data
.rsc_tsc
), GFP_KERNEL
);
2614 if (!key_data
.rsc_tsc
) {
2619 memset(&wakeup_filter_cmd
, 0, sizeof(wakeup_filter_cmd
));
2622 * We know the last used seqno, and the uCode expects to know that
2623 * one, it will increment before TX.
2625 seq
= le16_to_cpu(priv
->last_seq_ctl
) & IEEE80211_SCTL_SEQ
;
2626 wakeup_filter_cmd
.non_qos_seq
= cpu_to_le16(seq
);
2629 * For QoS counters, we store the one to use next, so subtract 0x10
2630 * since the uCode will add 0x10 before using the value.
2632 for (i
= 0; i
< 8; i
++) {
2633 seq
= priv
->stations
[IWL_AP_ID
].tid
[i
].seq_number
;
2635 wakeup_filter_cmd
.qos_seq
[i
] = cpu_to_le16(seq
);
2638 if (wowlan
->disconnect
)
2639 wakeup_filter_cmd
.enabled
|=
2640 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS
|
2641 IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE
);
2642 if (wowlan
->magic_pkt
)
2643 wakeup_filter_cmd
.enabled
|=
2644 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET
);
2645 if (wowlan
->gtk_rekey_failure
)
2646 wakeup_filter_cmd
.enabled
|=
2647 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL
);
2648 if (wowlan
->eap_identity_req
)
2649 wakeup_filter_cmd
.enabled
|=
2650 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ
);
2651 if (wowlan
->four_way_handshake
)
2652 wakeup_filter_cmd
.enabled
|=
2653 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE
);
2654 if (wowlan
->rfkill_release
)
2655 wakeup_filter_cmd
.enabled
|=
2656 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_RFKILL
);
2657 if (wowlan
->n_patterns
)
2658 wakeup_filter_cmd
.enabled
|=
2659 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH
);
2661 iwl_scan_cancel_timeout(priv
, 200);
2663 memcpy(&rxon
, &ctx
->active
, sizeof(rxon
));
2665 trans_stop_device(&priv
->trans
);
2667 priv
->wowlan
= true;
2669 ret
= iwlagn_load_ucode_wait_alive(priv
, &priv
->ucode_wowlan
,
2674 /* now configure WoWLAN ucode */
2675 ret
= iwl_alive_start(priv
);
2679 memcpy(&ctx
->staging
, &rxon
, sizeof(rxon
));
2680 ret
= iwlagn_commit_rxon(priv
, ctx
);
2684 ret
= iwl_power_update_mode(priv
, true);
2688 if (!iwlagn_mod_params
.sw_crypto
) {
2689 /* mark all keys clear */
2690 priv
->ucode_key_table
= 0;
2691 ctx
->key_mapping_keys
= 0;
2694 * This needs to be unlocked due to lock ordering
2695 * constraints. Since we're in the suspend path
2696 * that isn't really a problem though.
2698 mutex_unlock(&priv
->mutex
);
2699 ieee80211_iter_keys(priv
->hw
, ctx
->vif
,
2700 iwlagn_wowlan_program_keys
,
2702 mutex_lock(&priv
->mutex
);
2703 if (key_data
.error
) {
2708 if (key_data
.use_rsc_tsc
) {
2709 struct iwl_host_cmd rsc_tsc_cmd
= {
2710 .id
= REPLY_WOWLAN_TSC_RSC_PARAMS
,
2712 .data
[0] = key_data
.rsc_tsc
,
2713 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
2714 .len
[0] = sizeof(*key_data
.rsc_tsc
),
2717 ret
= trans_send_cmd(&priv
->trans
, &rsc_tsc_cmd
);
2722 if (key_data
.use_tkip
) {
2723 ret
= trans_send_cmd_pdu(&priv
->trans
,
2724 REPLY_WOWLAN_TKIP_PARAMS
,
2725 CMD_SYNC
, sizeof(tkip_cmd
),
2731 if (priv
->have_rekey_data
) {
2732 memset(&kek_kck_cmd
, 0, sizeof(kek_kck_cmd
));
2733 memcpy(kek_kck_cmd
.kck
, priv
->kck
, NL80211_KCK_LEN
);
2734 kek_kck_cmd
.kck_len
= cpu_to_le16(NL80211_KCK_LEN
);
2735 memcpy(kek_kck_cmd
.kek
, priv
->kek
, NL80211_KEK_LEN
);
2736 kek_kck_cmd
.kek_len
= cpu_to_le16(NL80211_KEK_LEN
);
2737 kek_kck_cmd
.replay_ctr
= priv
->replay_ctr
;
2739 ret
= trans_send_cmd_pdu(&priv
->trans
,
2740 REPLY_WOWLAN_KEK_KCK_MATERIAL
,
2741 CMD_SYNC
, sizeof(kek_kck_cmd
),
2748 ret
= trans_send_cmd_pdu(&priv
->trans
, REPLY_WOWLAN_WAKEUP_FILTER
,
2749 CMD_SYNC
, sizeof(wakeup_filter_cmd
),
2750 &wakeup_filter_cmd
);
2754 ret
= iwlagn_send_patterns(priv
, wowlan
);
2758 device_set_wakeup_enable(priv
->bus
->dev
, true);
2760 /* Now let the ucode operate on its own */
2761 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2762 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE
);
2767 priv
->wowlan
= false;
2768 iwlagn_prepare_restart(priv
);
2769 ieee80211_restart_hw(priv
->hw
);
2771 mutex_unlock(&priv
->mutex
);
2772 kfree(key_data
.rsc_tsc
);
2776 static int iwlagn_mac_resume(struct ieee80211_hw
*hw
)
2778 struct iwl_priv
*priv
= hw
->priv
;
2779 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2780 struct ieee80211_vif
*vif
;
2781 unsigned long flags
;
2782 u32 base
, status
= 0xffffffff;
2785 mutex_lock(&priv
->mutex
);
2787 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
2788 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE
);
2790 base
= priv
->device_pointers
.error_event_table
;
2791 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
2792 spin_lock_irqsave(&priv
->reg_lock
, flags
);
2793 ret
= iwl_grab_nic_access_silent(priv
);
2795 iwl_write32(priv
, HBUS_TARG_MEM_RADDR
, base
);
2796 status
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
2797 iwl_release_nic_access(priv
);
2799 spin_unlock_irqrestore(&priv
->reg_lock
, flags
);
2801 #ifdef CONFIG_IWLWIFI_DEBUGFS
2803 if (!priv
->wowlan_sram
)
2805 kzalloc(priv
->ucode_wowlan
.data
.len
,
2808 if (priv
->wowlan_sram
)
2809 _iwl_read_targ_mem_words(
2810 priv
, 0x800000, priv
->wowlan_sram
,
2811 priv
->ucode_wowlan
.data
.len
/ 4);
2816 /* we'll clear ctx->vif during iwlagn_prepare_restart() */
2819 priv
->wowlan
= false;
2821 device_set_wakeup_enable(priv
->bus
->dev
, false);
2823 iwlagn_prepare_restart(priv
);
2825 memset((void *)&ctx
->active
, 0, sizeof(ctx
->active
));
2826 iwl_connection_init_rx_config(priv
, ctx
);
2827 iwlagn_set_rxon_chain(priv
, ctx
);
2829 mutex_unlock(&priv
->mutex
);
2831 ieee80211_resume_disconnect(vif
);
2837 static void iwlagn_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
2839 struct iwl_priv
*priv
= hw
->priv
;
2841 IWL_DEBUG_MACDUMP(priv
, "enter\n");
2843 IWL_DEBUG_TX(priv
, "dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
2844 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
2846 if (iwlagn_tx_skb(priv
, skb
))
2847 dev_kfree_skb_any(skb
);
2849 IWL_DEBUG_MACDUMP(priv
, "leave\n");
2852 static void iwlagn_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2853 struct ieee80211_vif
*vif
,
2854 struct ieee80211_key_conf
*keyconf
,
2855 struct ieee80211_sta
*sta
,
2856 u32 iv32
, u16
*phase1key
)
2858 struct iwl_priv
*priv
= hw
->priv
;
2860 iwl_update_tkip_key(priv
, vif
, keyconf
, sta
, iv32
, phase1key
);
2863 static int iwlagn_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
2864 struct ieee80211_vif
*vif
,
2865 struct ieee80211_sta
*sta
,
2866 struct ieee80211_key_conf
*key
)
2868 struct iwl_priv
*priv
= hw
->priv
;
2869 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2870 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
2872 bool is_default_wep_key
= false;
2874 IWL_DEBUG_MAC80211(priv
, "enter\n");
2876 if (iwlagn_mod_params
.sw_crypto
) {
2877 IWL_DEBUG_MAC80211(priv
, "leave - hwcrypto disabled\n");
2882 * We could program these keys into the hardware as well, but we
2883 * don't expect much multicast traffic in IBSS and having keys
2884 * for more stations is probably more useful.
2886 * Mark key TX-only and return 0.
2888 if (vif
->type
== NL80211_IFTYPE_ADHOC
&&
2889 !(key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)) {
2890 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
2894 /* If they key was TX-only, accept deletion */
2895 if (cmd
== DISABLE_KEY
&& key
->hw_key_idx
== WEP_INVALID_OFFSET
)
2898 mutex_lock(&priv
->mutex
);
2899 iwl_scan_cancel_timeout(priv
, 100);
2901 BUILD_BUG_ON(WEP_INVALID_OFFSET
== IWLAGN_HW_KEY_DEFAULT
);
2904 * If we are getting WEP group key and we didn't receive any key mapping
2905 * so far, we are in legacy wep mode (group key only), otherwise we are
2907 * In legacy wep mode, we use another host command to the uCode.
2909 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
2910 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) && !sta
) {
2912 is_default_wep_key
= !ctx
->key_mapping_keys
;
2914 is_default_wep_key
=
2915 key
->hw_key_idx
== IWLAGN_HW_KEY_DEFAULT
;
2921 if (is_default_wep_key
) {
2922 ret
= iwl_set_default_wep_key(priv
, vif_priv
->ctx
, key
);
2925 ret
= iwl_set_dynamic_key(priv
, vif_priv
->ctx
, key
, sta
);
2928 * can't add key for RX, but we don't need it
2929 * in the device for TX so still return 0
2932 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
2935 IWL_DEBUG_MAC80211(priv
, "enable hwcrypto key\n");
2938 if (is_default_wep_key
)
2939 ret
= iwl_remove_default_wep_key(priv
, ctx
, key
);
2941 ret
= iwl_remove_dynamic_key(priv
, ctx
, key
, sta
);
2943 IWL_DEBUG_MAC80211(priv
, "disable hwcrypto key\n");
2949 mutex_unlock(&priv
->mutex
);
2950 IWL_DEBUG_MAC80211(priv
, "leave\n");
2955 static int iwlagn_mac_ampdu_action(struct ieee80211_hw
*hw
,
2956 struct ieee80211_vif
*vif
,
2957 enum ieee80211_ampdu_mlme_action action
,
2958 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
2961 struct iwl_priv
*priv
= hw
->priv
;
2963 struct iwl_station_priv
*sta_priv
= (void *) sta
->drv_priv
;
2965 IWL_DEBUG_HT(priv
, "A-MPDU action on addr %pM tid %d\n",
2968 if (!(priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
))
2971 mutex_lock(&priv
->mutex
);
2974 case IEEE80211_AMPDU_RX_START
:
2975 IWL_DEBUG_HT(priv
, "start Rx\n");
2976 ret
= iwl_sta_rx_agg_start(priv
, sta
, tid
, *ssn
);
2978 case IEEE80211_AMPDU_RX_STOP
:
2979 IWL_DEBUG_HT(priv
, "stop Rx\n");
2980 ret
= iwl_sta_rx_agg_stop(priv
, sta
, tid
);
2981 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2984 case IEEE80211_AMPDU_TX_START
:
2985 IWL_DEBUG_HT(priv
, "start Tx\n");
2986 ret
= iwlagn_tx_agg_start(priv
, vif
, sta
, tid
, ssn
);
2988 priv
->agg_tids_count
++;
2989 IWL_DEBUG_HT(priv
, "priv->agg_tids_count = %u\n",
2990 priv
->agg_tids_count
);
2993 case IEEE80211_AMPDU_TX_STOP
:
2994 IWL_DEBUG_HT(priv
, "stop Tx\n");
2995 ret
= iwlagn_tx_agg_stop(priv
, vif
, sta
, tid
);
2996 if ((ret
== 0) && (priv
->agg_tids_count
> 0)) {
2997 priv
->agg_tids_count
--;
2998 IWL_DEBUG_HT(priv
, "priv->agg_tids_count = %u\n",
2999 priv
->agg_tids_count
);
3001 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3003 if (priv
->cfg
->ht_params
&&
3004 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
3006 * switch off RTS/CTS if it was previously enabled
3008 sta_priv
->lq_sta
.lq
.general_params
.flags
&=
3009 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
3010 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
3011 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
3014 case IEEE80211_AMPDU_TX_OPERATIONAL
:
3015 buf_size
= min_t(int, buf_size
, LINK_QUAL_AGG_FRAME_LIMIT_DEF
);
3017 trans_txq_agg_setup(&priv
->trans
, iwl_sta_id(sta
), tid
,
3021 * If the limit is 0, then it wasn't initialised yet,
3022 * use the default. We can do that since we take the
3023 * minimum below, and we don't want to go above our
3024 * default due to hardware restrictions.
3026 if (sta_priv
->max_agg_bufsize
== 0)
3027 sta_priv
->max_agg_bufsize
=
3028 LINK_QUAL_AGG_FRAME_LIMIT_DEF
;
3031 * Even though in theory the peer could have different
3032 * aggregation reorder buffer sizes for different sessions,
3033 * our ucode doesn't allow for that and has a global limit
3034 * for each station. Therefore, use the minimum of all the
3035 * aggregation sessions and our default value.
3037 sta_priv
->max_agg_bufsize
=
3038 min(sta_priv
->max_agg_bufsize
, buf_size
);
3040 if (priv
->cfg
->ht_params
&&
3041 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
3043 * switch to RTS/CTS if it is the prefer protection
3044 * method for HT traffic
3047 sta_priv
->lq_sta
.lq
.general_params
.flags
|=
3048 LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
3051 sta_priv
->lq_sta
.lq
.agg_params
.agg_frame_cnt_limit
=
3052 sta_priv
->max_agg_bufsize
;
3054 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
3055 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
3057 IWL_INFO(priv
, "Tx aggregation enabled on ra = %pM tid = %d\n",
3062 mutex_unlock(&priv
->mutex
);
3067 static int iwlagn_mac_sta_add(struct ieee80211_hw
*hw
,
3068 struct ieee80211_vif
*vif
,
3069 struct ieee80211_sta
*sta
)
3071 struct iwl_priv
*priv
= hw
->priv
;
3072 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
3073 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
3074 bool is_ap
= vif
->type
== NL80211_IFTYPE_STATION
;
3078 IWL_DEBUG_INFO(priv
, "received request to add station %pM\n",
3080 mutex_lock(&priv
->mutex
);
3081 IWL_DEBUG_INFO(priv
, "proceeding to add station %pM\n",
3083 sta_priv
->common
.sta_id
= IWL_INVALID_STATION
;
3085 atomic_set(&sta_priv
->pending_frames
, 0);
3086 if (vif
->type
== NL80211_IFTYPE_AP
)
3087 sta_priv
->client
= true;
3089 ret
= iwl_add_station_common(priv
, vif_priv
->ctx
, sta
->addr
,
3090 is_ap
, sta
, &sta_id
);
3092 IWL_ERR(priv
, "Unable to add station %pM (%d)\n",
3094 /* Should we return success if return code is EEXIST ? */
3095 mutex_unlock(&priv
->mutex
);
3099 sta_priv
->common
.sta_id
= sta_id
;
3101 /* Initialize rate scaling */
3102 IWL_DEBUG_INFO(priv
, "Initializing rate scaling for station %pM\n",
3104 iwl_rs_rate_init(priv
, sta
, sta_id
);
3105 mutex_unlock(&priv
->mutex
);
3110 static void iwlagn_mac_channel_switch(struct ieee80211_hw
*hw
,
3111 struct ieee80211_channel_switch
*ch_switch
)
3113 struct iwl_priv
*priv
= hw
->priv
;
3114 const struct iwl_channel_info
*ch_info
;
3115 struct ieee80211_conf
*conf
= &hw
->conf
;
3116 struct ieee80211_channel
*channel
= ch_switch
->channel
;
3117 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
3120 * When we add support for multiple interfaces, we need to
3121 * revisit this. The channel switch command in the device
3122 * only affects the BSS context, but what does that really
3123 * mean? And what if we get a CSA on the second interface?
3124 * This needs a lot of work.
3126 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
3129 IWL_DEBUG_MAC80211(priv
, "enter\n");
3131 mutex_lock(&priv
->mutex
);
3133 if (iwl_is_rfkill(priv
))
3136 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
3137 test_bit(STATUS_SCANNING
, &priv
->status
) ||
3138 test_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
))
3141 if (!iwl_is_associated_ctx(ctx
))
3144 if (!priv
->cfg
->lib
->set_channel_switch
)
3147 ch
= channel
->hw_value
;
3148 if (le16_to_cpu(ctx
->active
.channel
) == ch
)
3151 ch_info
= iwl_get_channel_info(priv
, channel
->band
, ch
);
3152 if (!is_channel_valid(ch_info
)) {
3153 IWL_DEBUG_MAC80211(priv
, "invalid channel\n");
3157 spin_lock_irq(&priv
->lock
);
3159 priv
->current_ht_config
.smps
= conf
->smps_mode
;
3161 /* Configure HT40 channels */
3162 ctx
->ht
.enabled
= conf_is_ht(conf
);
3163 if (ctx
->ht
.enabled
) {
3164 if (conf_is_ht40_minus(conf
)) {
3165 ctx
->ht
.extension_chan_offset
=
3166 IEEE80211_HT_PARAM_CHA_SEC_BELOW
;
3167 ctx
->ht
.is_40mhz
= true;
3168 } else if (conf_is_ht40_plus(conf
)) {
3169 ctx
->ht
.extension_chan_offset
=
3170 IEEE80211_HT_PARAM_CHA_SEC_ABOVE
;
3171 ctx
->ht
.is_40mhz
= true;
3173 ctx
->ht
.extension_chan_offset
=
3174 IEEE80211_HT_PARAM_CHA_SEC_NONE
;
3175 ctx
->ht
.is_40mhz
= false;
3178 ctx
->ht
.is_40mhz
= false;
3180 if ((le16_to_cpu(ctx
->staging
.channel
) != ch
))
3181 ctx
->staging
.flags
= 0;
3183 iwl_set_rxon_channel(priv
, channel
, ctx
);
3184 iwl_set_rxon_ht(priv
, ht_conf
);
3185 iwl_set_flags_for_band(priv
, ctx
, channel
->band
, ctx
->vif
);
3187 spin_unlock_irq(&priv
->lock
);
3191 * at this point, staging_rxon has the
3192 * configuration for channel switch
3194 set_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
);
3195 priv
->switch_channel
= cpu_to_le16(ch
);
3196 if (priv
->cfg
->lib
->set_channel_switch(priv
, ch_switch
)) {
3197 clear_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
);
3198 priv
->switch_channel
= 0;
3199 ieee80211_chswitch_done(ctx
->vif
, false);
3203 mutex_unlock(&priv
->mutex
);
3204 IWL_DEBUG_MAC80211(priv
, "leave\n");
3207 static void iwlagn_configure_filter(struct ieee80211_hw
*hw
,
3208 unsigned int changed_flags
,
3209 unsigned int *total_flags
,
3212 struct iwl_priv
*priv
= hw
->priv
;
3213 __le32 filter_or
= 0, filter_nand
= 0;
3214 struct iwl_rxon_context
*ctx
;
3216 #define CHK(test, flag) do { \
3217 if (*total_flags & (test)) \
3218 filter_or |= (flag); \
3220 filter_nand |= (flag); \
3223 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
3224 changed_flags
, *total_flags
);
3226 CHK(FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
, RXON_FILTER_PROMISC_MSK
);
3227 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
3228 CHK(FIF_CONTROL
, RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_PROMISC_MSK
);
3229 CHK(FIF_BCN_PRBRESP_PROMISC
, RXON_FILTER_BCON_AWARE_MSK
);
3233 mutex_lock(&priv
->mutex
);
3235 for_each_context(priv
, ctx
) {
3236 ctx
->staging
.filter_flags
&= ~filter_nand
;
3237 ctx
->staging
.filter_flags
|= filter_or
;
3240 * Not committing directly because hardware can perform a scan,
3241 * but we'll eventually commit the filter flags change anyway.
3245 mutex_unlock(&priv
->mutex
);
3248 * Receiving all multicast frames is always enabled by the
3249 * default flags setup in iwl_connection_init_rx_config()
3250 * since we currently do not support programming multicast
3251 * filters into the device.
3253 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
3254 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
3257 static void iwlagn_mac_flush(struct ieee80211_hw
*hw
, bool drop
)
3259 struct iwl_priv
*priv
= hw
->priv
;
3261 mutex_lock(&priv
->mutex
);
3262 IWL_DEBUG_MAC80211(priv
, "enter\n");
3264 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
3265 IWL_DEBUG_TX(priv
, "Aborting flush due to device shutdown\n");
3268 if (iwl_is_rfkill(priv
)) {
3269 IWL_DEBUG_TX(priv
, "Aborting flush due to RF Kill\n");
3274 * mac80211 will not push any more frames for transmit
3275 * until the flush is completed
3278 IWL_DEBUG_MAC80211(priv
, "send flush command\n");
3279 if (iwlagn_txfifo_flush(priv
, IWL_DROP_ALL
)) {
3280 IWL_ERR(priv
, "flush request fail\n");
3284 IWL_DEBUG_MAC80211(priv
, "wait transmit/flush all frames\n");
3285 iwlagn_wait_tx_queue_empty(priv
);
3287 mutex_unlock(&priv
->mutex
);
3288 IWL_DEBUG_MAC80211(priv
, "leave\n");
3291 static void iwlagn_disable_roc(struct iwl_priv
*priv
)
3293 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
3294 struct ieee80211_channel
*chan
= ACCESS_ONCE(priv
->hw
->conf
.channel
);
3296 lockdep_assert_held(&priv
->mutex
);
3298 if (!ctx
->is_active
)
3301 ctx
->staging
.dev_type
= RXON_DEV_TYPE_2STA
;
3302 ctx
->staging
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
3303 iwl_set_rxon_channel(priv
, chan
, ctx
);
3304 iwl_set_flags_for_band(priv
, ctx
, chan
->band
, NULL
);
3306 priv
->hw_roc_channel
= NULL
;
3308 iwlagn_commit_rxon(priv
, ctx
);
3310 ctx
->is_active
= false;
3313 static void iwlagn_bg_roc_done(struct work_struct
*work
)
3315 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
3318 mutex_lock(&priv
->mutex
);
3319 ieee80211_remain_on_channel_expired(priv
->hw
);
3320 iwlagn_disable_roc(priv
);
3321 mutex_unlock(&priv
->mutex
);
3324 static int iwl_mac_remain_on_channel(struct ieee80211_hw
*hw
,
3325 struct ieee80211_channel
*channel
,
3326 enum nl80211_channel_type channel_type
,
3329 struct iwl_priv
*priv
= hw
->priv
;
3332 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
3335 if (!(priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
&
3336 BIT(NL80211_IFTYPE_P2P_CLIENT
)))
3339 mutex_lock(&priv
->mutex
);
3341 if (priv
->contexts
[IWL_RXON_CTX_PAN
].is_active
||
3342 test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
3347 priv
->contexts
[IWL_RXON_CTX_PAN
].is_active
= true;
3348 priv
->hw_roc_channel
= channel
;
3349 priv
->hw_roc_chantype
= channel_type
;
3350 priv
->hw_roc_duration
= DIV_ROUND_UP(duration
* 1000, 1024);
3351 iwlagn_commit_rxon(priv
, &priv
->contexts
[IWL_RXON_CTX_PAN
]);
3352 queue_delayed_work(priv
->workqueue
, &priv
->hw_roc_work
,
3353 msecs_to_jiffies(duration
+ 20));
3355 msleep(IWL_MIN_SLOT_TIME
); /* TU is almost ms */
3356 ieee80211_ready_on_channel(priv
->hw
);
3359 mutex_unlock(&priv
->mutex
);
3364 static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw
*hw
)
3366 struct iwl_priv
*priv
= hw
->priv
;
3368 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
3371 cancel_delayed_work_sync(&priv
->hw_roc_work
);
3373 mutex_lock(&priv
->mutex
);
3374 iwlagn_disable_roc(priv
);
3375 mutex_unlock(&priv
->mutex
);
3380 /*****************************************************************************
3382 * driver setup and teardown
3384 *****************************************************************************/
3386 static void iwl_setup_deferred_work(struct iwl_priv
*priv
)
3388 priv
->workqueue
= create_singlethread_workqueue(DRV_NAME
);
3390 init_waitqueue_head(&priv
->wait_command_queue
);
3392 INIT_WORK(&priv
->restart
, iwl_bg_restart
);
3393 INIT_WORK(&priv
->beacon_update
, iwl_bg_beacon_update
);
3394 INIT_WORK(&priv
->run_time_calib_work
, iwl_bg_run_time_calib_work
);
3395 INIT_WORK(&priv
->tx_flush
, iwl_bg_tx_flush
);
3396 INIT_WORK(&priv
->bt_full_concurrency
, iwl_bg_bt_full_concurrency
);
3397 INIT_WORK(&priv
->bt_runtime_config
, iwl_bg_bt_runtime_config
);
3398 INIT_DELAYED_WORK(&priv
->hw_roc_work
, iwlagn_bg_roc_done
);
3400 iwl_setup_scan_deferred_work(priv
);
3402 if (priv
->cfg
->lib
->bt_setup_deferred_work
)
3403 priv
->cfg
->lib
->bt_setup_deferred_work(priv
);
3405 init_timer(&priv
->statistics_periodic
);
3406 priv
->statistics_periodic
.data
= (unsigned long)priv
;
3407 priv
->statistics_periodic
.function
= iwl_bg_statistics_periodic
;
3409 init_timer(&priv
->ucode_trace
);
3410 priv
->ucode_trace
.data
= (unsigned long)priv
;
3411 priv
->ucode_trace
.function
= iwl_bg_ucode_trace
;
3413 init_timer(&priv
->watchdog
);
3414 priv
->watchdog
.data
= (unsigned long)priv
;
3415 priv
->watchdog
.function
= iwl_bg_watchdog
;
3418 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
)
3420 if (priv
->cfg
->lib
->cancel_deferred_work
)
3421 priv
->cfg
->lib
->cancel_deferred_work(priv
);
3423 cancel_work_sync(&priv
->run_time_calib_work
);
3424 cancel_work_sync(&priv
->beacon_update
);
3426 iwl_cancel_scan_deferred_work(priv
);
3428 cancel_work_sync(&priv
->bt_full_concurrency
);
3429 cancel_work_sync(&priv
->bt_runtime_config
);
3431 del_timer_sync(&priv
->statistics_periodic
);
3432 del_timer_sync(&priv
->ucode_trace
);
3435 static void iwl_init_hw_rates(struct iwl_priv
*priv
,
3436 struct ieee80211_rate
*rates
)
3440 for (i
= 0; i
< IWL_RATE_COUNT_LEGACY
; i
++) {
3441 rates
[i
].bitrate
= iwl_rates
[i
].ieee
* 5;
3442 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
3443 rates
[i
].hw_value_short
= i
;
3445 if ((i
>= IWL_FIRST_CCK_RATE
) && (i
<= IWL_LAST_CCK_RATE
)) {
3447 * If CCK != 1M then set short preamble rate flag.
3450 (iwl_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
3451 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
3456 static int iwl_init_drv(struct iwl_priv
*priv
)
3460 spin_lock_init(&priv
->sta_lock
);
3461 spin_lock_init(&priv
->hcmd_lock
);
3463 mutex_init(&priv
->mutex
);
3465 priv
->ieee_channels
= NULL
;
3466 priv
->ieee_rates
= NULL
;
3467 priv
->band
= IEEE80211_BAND_2GHZ
;
3469 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
3470 priv
->current_ht_config
.smps
= IEEE80211_SMPS_STATIC
;
3471 priv
->missed_beacon_threshold
= IWL_MISSED_BEACON_THRESHOLD_DEF
;
3472 priv
->agg_tids_count
= 0;
3474 /* initialize force reset */
3475 priv
->force_reset
[IWL_RF_RESET
].reset_duration
=
3476 IWL_DELAY_NEXT_FORCE_RF_RESET
;
3477 priv
->force_reset
[IWL_FW_RESET
].reset_duration
=
3478 IWL_DELAY_NEXT_FORCE_FW_RELOAD
;
3480 priv
->rx_statistics_jiffies
= jiffies
;
3482 /* Choose which receivers/antennas to use */
3483 iwlagn_set_rxon_chain(priv
, &priv
->contexts
[IWL_RXON_CTX_BSS
]);
3485 iwl_init_scan_params(priv
);
3488 if (priv
->cfg
->bt_params
&&
3489 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
3490 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
3491 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
3492 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
3493 priv
->bt_on_thresh
= BT_ON_THRESHOLD_DEF
;
3494 priv
->bt_duration
= BT_DURATION_LIMIT_DEF
;
3495 priv
->dynamic_frag_thresh
= BT_FRAG_THRESHOLD_DEF
;
3498 ret
= iwl_init_channel_map(priv
);
3500 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
3504 ret
= iwlcore_init_geos(priv
);
3506 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
3507 goto err_free_channel_map
;
3509 iwl_init_hw_rates(priv
, priv
->ieee_rates
);
3513 err_free_channel_map
:
3514 iwl_free_channel_map(priv
);
3519 static void iwl_uninit_drv(struct iwl_priv
*priv
)
3521 iwl_calib_free_results(priv
);
3522 iwlcore_free_geos(priv
);
3523 iwl_free_channel_map(priv
);
3524 kfree(priv
->scan_cmd
);
3525 kfree(priv
->beacon_cmd
);
3526 #ifdef CONFIG_IWLWIFI_DEBUGFS
3527 kfree(priv
->wowlan_sram
);
3531 static void iwl_mac_rssi_callback(struct ieee80211_hw
*hw
,
3532 enum ieee80211_rssi_event rssi_event
)
3534 struct iwl_priv
*priv
= hw
->priv
;
3536 mutex_lock(&priv
->mutex
);
3538 if (priv
->cfg
->bt_params
&&
3539 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
3540 if (rssi_event
== RSSI_EVENT_LOW
)
3541 priv
->bt_enable_pspoll
= true;
3542 else if (rssi_event
== RSSI_EVENT_HIGH
)
3543 priv
->bt_enable_pspoll
= false;
3545 iwlagn_send_advance_bt_config(priv
);
3547 IWL_DEBUG_MAC80211(priv
, "Advanced BT coex disabled,"
3548 "ignoring RSSI callback\n");
3551 mutex_unlock(&priv
->mutex
);
3554 struct ieee80211_ops iwlagn_hw_ops
= {
3555 .tx
= iwlagn_mac_tx
,
3556 .start
= iwlagn_mac_start
,
3557 .stop
= iwlagn_mac_stop
,
3559 .suspend
= iwlagn_mac_suspend
,
3560 .resume
= iwlagn_mac_resume
,
3562 .add_interface
= iwl_mac_add_interface
,
3563 .remove_interface
= iwl_mac_remove_interface
,
3564 .change_interface
= iwl_mac_change_interface
,
3565 .config
= iwlagn_mac_config
,
3566 .configure_filter
= iwlagn_configure_filter
,
3567 .set_key
= iwlagn_mac_set_key
,
3568 .update_tkip_key
= iwlagn_mac_update_tkip_key
,
3569 .set_rekey_data
= iwlagn_mac_set_rekey_data
,
3570 .conf_tx
= iwl_mac_conf_tx
,
3571 .bss_info_changed
= iwlagn_bss_info_changed
,
3572 .ampdu_action
= iwlagn_mac_ampdu_action
,
3573 .hw_scan
= iwl_mac_hw_scan
,
3574 .sta_notify
= iwlagn_mac_sta_notify
,
3575 .sta_add
= iwlagn_mac_sta_add
,
3576 .sta_remove
= iwl_mac_sta_remove
,
3577 .channel_switch
= iwlagn_mac_channel_switch
,
3578 .flush
= iwlagn_mac_flush
,
3579 .tx_last_beacon
= iwl_mac_tx_last_beacon
,
3580 .remain_on_channel
= iwl_mac_remain_on_channel
,
3581 .cancel_remain_on_channel
= iwl_mac_cancel_remain_on_channel
,
3582 .offchannel_tx
= iwl_mac_offchannel_tx
,
3583 .offchannel_tx_cancel_wait
= iwl_mac_offchannel_tx_cancel_wait
,
3584 .rssi_callback
= iwl_mac_rssi_callback
,
3585 CFG80211_TESTMODE_CMD(iwl_testmode_cmd
)
3586 CFG80211_TESTMODE_DUMP(iwl_testmode_dump
)
3589 static u32
iwl_hw_detect(struct iwl_priv
*priv
)
3591 return iwl_read32(priv
, CSR_HW_REV
);
3594 static int iwl_set_hw_params(struct iwl_priv
*priv
)
3596 priv
->hw_params
.max_rxq_size
= RX_QUEUE_SIZE
;
3597 priv
->hw_params
.max_rxq_log
= RX_QUEUE_SIZE_LOG
;
3598 if (iwlagn_mod_params
.amsdu_size_8K
)
3599 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_8K
);
3601 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_4K
);
3603 priv
->hw_params
.max_beacon_itrvl
= IWL_MAX_UCODE_BEACON_INTERVAL
;
3605 if (iwlagn_mod_params
.disable_11n
)
3606 priv
->cfg
->sku
&= ~EEPROM_SKU_CAP_11N_ENABLE
;
3608 /* Device-specific setup */
3609 return priv
->cfg
->lib
->set_hw_params(priv
);
3612 /* This function both allocates and initializes hw and priv. */
3613 static struct ieee80211_hw
*iwl_alloc_all(struct iwl_cfg
*cfg
)
3615 struct iwl_priv
*priv
;
3616 /* mac80211 allocates memory for this device instance, including
3617 * space for this driver's private structure */
3618 struct ieee80211_hw
*hw
;
3620 hw
= ieee80211_alloc_hw(sizeof(struct iwl_priv
), &iwlagn_hw_ops
);
3622 pr_err("%s: Can not allocate network device\n",
3634 int iwl_probe(struct iwl_bus
*bus
, struct iwl_cfg
*cfg
)
3637 struct iwl_priv
*priv
;
3638 struct ieee80211_hw
*hw
;
3642 /************************
3643 * 1. Allocating HW data
3644 ************************/
3645 hw
= iwl_alloc_all(cfg
);
3653 bus_set_drv_data(priv
->bus
, priv
);
3655 /* At this point both hw and priv are allocated. */
3657 SET_IEEE80211_DEV(hw
, priv
->bus
->dev
);
3659 IWL_DEBUG_INFO(priv
, "*** LOAD DRIVER ***\n");
3661 priv
->inta_mask
= CSR_INI_SET_MASK
;
3663 /* is antenna coupling more than 35dB ? */
3664 priv
->bt_ant_couple_ok
=
3665 (iwlagn_ant_coupling
> IWL_BT_ANTENNA_COUPLING_THRESHOLD
) ?
3668 /* enable/disable bt channel inhibition */
3669 priv
->bt_ch_announce
= iwlagn_bt_ch_announce
;
3670 IWL_DEBUG_INFO(priv
, "BT channel inhibition is %s\n",
3671 (priv
->bt_ch_announce
) ? "On" : "Off");
3673 if (iwl_alloc_traffic_mem(priv
))
3674 IWL_ERR(priv
, "Not enough memory to generate traffic log\n");
3676 /* these spin locks will be used in apm_ops.init and EEPROM access
3677 * we should init now
3679 spin_lock_init(&priv
->reg_lock
);
3680 spin_lock_init(&priv
->lock
);
3683 * stop and reset the on-board processor just in case it is in a
3684 * strange state ... like being left stranded by a primary kernel
3685 * and this is now the kdump kernel trying to start up
3687 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
3689 /***********************
3690 * 3. Read REV register
3691 ***********************/
3692 hw_rev
= iwl_hw_detect(priv
);
3693 IWL_INFO(priv
, "Detected %s, REV=0x%X\n",
3694 priv
->cfg
->name
, hw_rev
);
3696 err
= iwl_trans_register(&priv
->trans
, priv
);
3698 goto out_free_traffic_mem
;
3700 if (trans_prepare_card_hw(&priv
->trans
)) {
3702 IWL_WARN(priv
, "Failed, HW not ready\n");
3703 goto out_free_trans
;
3709 /* Read the EEPROM */
3710 err
= iwl_eeprom_init(priv
, hw_rev
);
3712 IWL_ERR(priv
, "Unable to init EEPROM\n");
3713 goto out_free_trans
;
3715 err
= iwl_eeprom_check_version(priv
);
3717 goto out_free_eeprom
;
3719 err
= iwl_eeprom_check_sku(priv
);
3721 goto out_free_eeprom
;
3723 /* extract MAC Address */
3724 iwl_eeprom_get_mac(priv
, priv
->addresses
[0].addr
);
3725 IWL_DEBUG_INFO(priv
, "MAC address: %pM\n", priv
->addresses
[0].addr
);
3726 priv
->hw
->wiphy
->addresses
= priv
->addresses
;
3727 priv
->hw
->wiphy
->n_addresses
= 1;
3728 num_mac
= iwl_eeprom_query16(priv
, EEPROM_NUM_MAC_ADDRESS
);
3730 memcpy(priv
->addresses
[1].addr
, priv
->addresses
[0].addr
,
3732 priv
->addresses
[1].addr
[5]++;
3733 priv
->hw
->wiphy
->n_addresses
++;
3736 /************************
3737 * 5. Setup HW constants
3738 ************************/
3739 if (iwl_set_hw_params(priv
)) {
3741 IWL_ERR(priv
, "failed to set hw parameters\n");
3742 goto out_free_eeprom
;
3745 /*******************
3747 *******************/
3749 err
= iwl_init_drv(priv
);
3751 goto out_free_eeprom
;
3752 /* At this point both hw and priv are initialized. */
3754 /********************
3756 ********************/
3757 iwl_setup_deferred_work(priv
);
3758 iwl_setup_rx_handlers(priv
);
3759 iwl_testmode_init(priv
);
3761 /*********************************************
3762 * 8. Enable interrupts
3763 *********************************************/
3765 iwl_enable_rfkill_int(priv
);
3767 /* If platform's RF_KILL switch is NOT set to KILL */
3768 if (iwl_read32(priv
, CSR_GP_CNTRL
) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
3769 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3771 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3773 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
3774 test_bit(STATUS_RF_KILL_HW
, &priv
->status
));
3776 iwl_power_initialize(priv
);
3777 iwl_tt_initialize(priv
);
3779 init_completion(&priv
->firmware_loading_complete
);
3781 err
= iwl_request_firmware(priv
, true);
3783 goto out_destroy_workqueue
;
3787 out_destroy_workqueue
:
3788 destroy_workqueue(priv
->workqueue
);
3789 priv
->workqueue
= NULL
;
3790 iwl_uninit_drv(priv
);
3792 iwl_eeprom_free(priv
);
3794 trans_free(&priv
->trans
);
3795 out_free_traffic_mem
:
3796 iwl_free_traffic_mem(priv
);
3797 ieee80211_free_hw(priv
->hw
);
3802 void __devexit
iwl_remove(struct iwl_priv
* priv
)
3804 unsigned long flags
;
3806 wait_for_completion(&priv
->firmware_loading_complete
);
3808 IWL_DEBUG_INFO(priv
, "*** UNLOAD DRIVER ***\n");
3810 iwl_dbgfs_unregister(priv
);
3811 sysfs_remove_group(&priv
->bus
->dev
->kobj
,
3812 &iwl_attribute_group
);
3814 /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
3815 * to be called and iwl_down since we are removing the device
3816 * we need to set STATUS_EXIT_PENDING bit.
3818 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3820 iwl_testmode_cleanup(priv
);
3821 iwl_leds_exit(priv
);
3823 if (priv
->mac80211_registered
) {
3824 ieee80211_unregister_hw(priv
->hw
);
3825 priv
->mac80211_registered
= 0;
3828 /* Reset to low power before unloading driver. */
3833 /* make sure we flush any pending irq or
3834 * tasklet for the driver
3836 spin_lock_irqsave(&priv
->lock
, flags
);
3837 iwl_disable_interrupts(priv
);
3838 spin_unlock_irqrestore(&priv
->lock
, flags
);
3840 trans_sync_irq(&priv
->trans
);
3842 iwl_dealloc_ucode(priv
);
3844 trans_rx_free(&priv
->trans
);
3845 trans_tx_free(&priv
->trans
);
3847 iwl_eeprom_free(priv
);
3849 /*netif_stop_queue(dev); */
3850 flush_workqueue(priv
->workqueue
);
3852 /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
3853 * priv->workqueue... so we can't take down the workqueue
3855 destroy_workqueue(priv
->workqueue
);
3856 priv
->workqueue
= NULL
;
3857 iwl_free_traffic_mem(priv
);
3859 trans_free(&priv
->trans
);
3861 bus_set_drv_data(priv
->bus
, NULL
);
3863 iwl_uninit_drv(priv
);
3865 dev_kfree_skb(priv
->beacon_skb
);
3867 ieee80211_free_hw(priv
->hw
);
3871 /*****************************************************************************
3873 * driver and module entry point
3875 *****************************************************************************/
3876 static int __init
iwl_init(void)
3880 pr_info(DRV_DESCRIPTION
", " DRV_VERSION
"\n");
3881 pr_info(DRV_COPYRIGHT
"\n");
3883 ret
= iwlagn_rate_control_register();
3885 pr_err("Unable to register rate control algorithm: %d\n", ret
);
3889 ret
= iwl_pci_register_driver();
3892 goto error_register
;
3896 iwlagn_rate_control_unregister();
3900 static void __exit
iwl_exit(void)
3902 iwl_pci_unregister_driver();
3903 iwlagn_rate_control_unregister();
3906 module_exit(iwl_exit
);
3907 module_init(iwl_init
);
3909 #ifdef CONFIG_IWLWIFI_DEBUG
3910 module_param_named(debug
, iwl_debug_level
, uint
, S_IRUGO
| S_IWUSR
);
3911 MODULE_PARM_DESC(debug
, "debug output mask");
3914 module_param_named(swcrypto
, iwlagn_mod_params
.sw_crypto
, int, S_IRUGO
);
3915 MODULE_PARM_DESC(swcrypto
, "using crypto in software (default 0 [hardware])");
3916 module_param_named(queues_num
, iwlagn_mod_params
.num_of_queues
, int, S_IRUGO
);
3917 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
3918 module_param_named(11n_disable
, iwlagn_mod_params
.disable_11n
, int, S_IRUGO
);
3919 MODULE_PARM_DESC(11n_disable
, "disable 11n functionality");
3920 module_param_named(amsdu_size_8K
, iwlagn_mod_params
.amsdu_size_8K
,
3922 MODULE_PARM_DESC(amsdu_size_8K
, "enable 8K amsdu size");
3923 module_param_named(fw_restart
, iwlagn_mod_params
.restart_fw
, int, S_IRUGO
);
3924 MODULE_PARM_DESC(fw_restart
, "restart firmware in case of error");
3926 module_param_named(ucode_alternative
, iwlagn_wanted_ucode_alternative
, int,
3928 MODULE_PARM_DESC(ucode_alternative
,
3929 "specify ucode alternative to use from ucode file");
3931 module_param_named(antenna_coupling
, iwlagn_ant_coupling
, int, S_IRUGO
);
3932 MODULE_PARM_DESC(antenna_coupling
,
3933 "specify antenna coupling in dB (defualt: 0 dB)");
3935 module_param_named(bt_ch_inhibition
, iwlagn_bt_ch_announce
, bool, S_IRUGO
);
3936 MODULE_PARM_DESC(bt_ch_inhibition
,
3937 "Disable BT channel inhibition (default: enable)");
3939 module_param_named(plcp_check
, iwlagn_mod_params
.plcp_check
, bool, S_IRUGO
);
3940 MODULE_PARM_DESC(plcp_check
, "Check plcp health (default: 1 [enabled])");
3942 module_param_named(ack_check
, iwlagn_mod_params
.ack_check
, bool, S_IRUGO
);
3943 MODULE_PARM_DESC(ack_check
, "Check ack health (default: 0 [disabled])");
3945 module_param_named(wd_disable
, iwlagn_mod_params
.wd_disable
, bool, S_IRUGO
);
3946 MODULE_PARM_DESC(wd_disable
,
3947 "Disable stuck queue watchdog timer (default: 0 [enabled])");
3950 * set bt_coex_active to true, uCode will do kill/defer
3951 * every time the priority line is asserted (BT is sending signals on the
3952 * priority line in the PCIx).
3953 * set bt_coex_active to false, uCode will ignore the BT activity and
3954 * perform the normal operation
3956 * User might experience transmit issue on some platform due to WiFi/BT
3957 * co-exist problem. The possible behaviors are:
3958 * Able to scan and finding all the available AP
3959 * Not able to associate with any AP
3960 * On those platforms, WiFi communication can be restored by set
3961 * "bt_coex_active" module parameter to "false"
3963 * default: bt_coex_active = true (BT_COEX_ENABLE)
3965 module_param_named(bt_coex_active
, iwlagn_mod_params
.bt_coex_active
,
3967 MODULE_PARM_DESC(bt_coex_active
, "enable wifi/bt co-exist (default: enable)");
3969 module_param_named(led_mode
, iwlagn_mod_params
.led_mode
, int, S_IRUGO
);
3970 MODULE_PARM_DESC(led_mode
, "0=system default, "
3971 "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)");
3973 module_param_named(power_save
, iwlagn_mod_params
.power_save
,
3975 MODULE_PARM_DESC(power_save
,
3976 "enable WiFi power management (default: disable)");
3978 module_param_named(power_level
, iwlagn_mod_params
.power_level
,
3980 MODULE_PARM_DESC(power_level
,
3981 "default power save level (range from 1 - 5, default: 1)");
3984 * For now, keep using power level 1 instead of automatically
3987 module_param_named(no_sleep_autoadjust
, iwlagn_mod_params
.no_sleep_autoadjust
,
3989 MODULE_PARM_DESC(no_sleep_autoadjust
,
3990 "don't automatically adjust sleep level "
3991 "according to maximum network latency (default: true)");