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/wireless.h>
39 #include <linux/firmware.h>
40 #include <linux/etherdevice.h>
41 #include <linux/if_arp.h>
43 #include <net/mac80211.h>
45 #include <asm/div64.h>
47 #include "iwl-eeprom.h"
51 #include "iwl-helpers.h"
53 #include "iwl-agn-calib.h"
56 #include "iwl-trans.h"
58 /******************************************************************************
62 ******************************************************************************/
65 * module name, copyright, version, etc.
67 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
69 #ifdef CONFIG_IWLWIFI_DEBUG
75 #define DRV_VERSION IWLWIFI_VERSION VD
78 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
79 MODULE_VERSION(DRV_VERSION
);
80 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
81 MODULE_LICENSE("GPL");
83 static int iwlagn_ant_coupling
;
84 static bool iwlagn_bt_ch_announce
= 1;
86 void iwl_update_chain_flags(struct iwl_priv
*priv
)
88 struct iwl_rxon_context
*ctx
;
90 for_each_context(priv
, ctx
) {
91 iwlagn_set_rxon_chain(priv
, ctx
);
92 if (ctx
->active
.rx_chain
!= ctx
->staging
.rx_chain
)
93 iwlagn_commit_rxon(priv
, ctx
);
97 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
98 static void iwl_set_beacon_tim(struct iwl_priv
*priv
,
99 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
,
100 u8
*beacon
, u32 frame_size
)
103 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)beacon
;
106 * The index is relative to frame start but we start looking at the
107 * variable-length part of the beacon.
109 tim_idx
= mgmt
->u
.beacon
.variable
- beacon
;
111 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
112 while ((tim_idx
< (frame_size
- 2)) &&
113 (beacon
[tim_idx
] != WLAN_EID_TIM
))
114 tim_idx
+= beacon
[tim_idx
+1] + 2;
116 /* If TIM field was found, set variables */
117 if ((tim_idx
< (frame_size
- 1)) && (beacon
[tim_idx
] == WLAN_EID_TIM
)) {
118 tx_beacon_cmd
->tim_idx
= cpu_to_le16(tim_idx
);
119 tx_beacon_cmd
->tim_size
= beacon
[tim_idx
+1];
121 IWL_WARN(priv
, "Unable to find TIM Element in beacon\n");
124 int iwlagn_send_beacon_cmd(struct iwl_priv
*priv
)
126 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
;
127 struct iwl_host_cmd cmd
= {
128 .id
= REPLY_TX_BEACON
,
131 struct ieee80211_tx_info
*info
;
137 * We have to set up the TX command, the TX Beacon command, and the
141 lockdep_assert_held(&priv
->mutex
);
143 if (!priv
->beacon_ctx
) {
144 IWL_ERR(priv
, "trying to build beacon w/o beacon context!\n");
148 if (WARN_ON(!priv
->beacon_skb
))
151 /* Allocate beacon command */
152 if (!priv
->beacon_cmd
)
153 priv
->beacon_cmd
= kzalloc(sizeof(*tx_beacon_cmd
), GFP_KERNEL
);
154 tx_beacon_cmd
= priv
->beacon_cmd
;
158 frame_size
= priv
->beacon_skb
->len
;
160 /* Set up TX command fields */
161 tx_beacon_cmd
->tx
.len
= cpu_to_le16((u16
)frame_size
);
162 tx_beacon_cmd
->tx
.sta_id
= priv
->beacon_ctx
->bcast_sta_id
;
163 tx_beacon_cmd
->tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
164 tx_beacon_cmd
->tx
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
|
165 TX_CMD_FLG_TSF_MSK
| TX_CMD_FLG_STA_RATE_MSK
;
167 /* Set up TX beacon command fields */
168 iwl_set_beacon_tim(priv
, tx_beacon_cmd
, priv
->beacon_skb
->data
,
171 /* Set up packet rate and flags */
172 info
= IEEE80211_SKB_CB(priv
->beacon_skb
);
175 * Let's set up the rate at least somewhat correctly;
176 * it will currently not actually be used by the uCode,
177 * it uses the broadcast station's rate instead.
179 if (info
->control
.rates
[0].idx
< 0 ||
180 info
->control
.rates
[0].flags
& IEEE80211_TX_RC_MCS
)
183 rate
= info
->control
.rates
[0].idx
;
185 priv
->mgmt_tx_ant
= iwl_toggle_tx_ant(priv
, priv
->mgmt_tx_ant
,
186 priv
->hw_params
.valid_tx_ant
);
187 rate_flags
= iwl_ant_idx_to_flags(priv
->mgmt_tx_ant
);
189 /* In mac80211, rates for 5 GHz start at 0 */
190 if (info
->band
== IEEE80211_BAND_5GHZ
)
191 rate
+= IWL_FIRST_OFDM_RATE
;
192 else if (rate
>= IWL_FIRST_CCK_RATE
&& rate
<= IWL_LAST_CCK_RATE
)
193 rate_flags
|= RATE_MCS_CCK_MSK
;
195 tx_beacon_cmd
->tx
.rate_n_flags
=
196 iwl_hw_set_rate_n_flags(rate
, rate_flags
);
199 cmd
.len
[0] = sizeof(*tx_beacon_cmd
);
200 cmd
.data
[0] = tx_beacon_cmd
;
201 cmd
.dataflags
[0] = IWL_HCMD_DFL_NOCOPY
;
202 cmd
.len
[1] = frame_size
;
203 cmd
.data
[1] = priv
->beacon_skb
->data
;
204 cmd
.dataflags
[1] = IWL_HCMD_DFL_NOCOPY
;
206 return trans_send_cmd(&priv
->trans
, &cmd
);
209 static void iwl_bg_beacon_update(struct work_struct
*work
)
211 struct iwl_priv
*priv
=
212 container_of(work
, struct iwl_priv
, beacon_update
);
213 struct sk_buff
*beacon
;
215 mutex_lock(&priv
->mutex
);
216 if (!priv
->beacon_ctx
) {
217 IWL_ERR(priv
, "updating beacon w/o beacon context!\n");
221 if (priv
->beacon_ctx
->vif
->type
!= NL80211_IFTYPE_AP
) {
223 * The ucode will send beacon notifications even in
224 * IBSS mode, but we don't want to process them. But
225 * we need to defer the type check to here due to
226 * requiring locking around the beacon_ctx access.
231 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
232 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->beacon_ctx
->vif
);
234 IWL_ERR(priv
, "update beacon failed -- keeping old\n");
238 /* new beacon skb is allocated every time; dispose previous.*/
239 dev_kfree_skb(priv
->beacon_skb
);
241 priv
->beacon_skb
= beacon
;
243 iwlagn_send_beacon_cmd(priv
);
245 mutex_unlock(&priv
->mutex
);
248 static void iwl_bg_bt_runtime_config(struct work_struct
*work
)
250 struct iwl_priv
*priv
=
251 container_of(work
, struct iwl_priv
, bt_runtime_config
);
253 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
256 /* dont send host command if rf-kill is on */
257 if (!iwl_is_ready_rf(priv
))
259 iwlagn_send_advance_bt_config(priv
);
262 static void iwl_bg_bt_full_concurrency(struct work_struct
*work
)
264 struct iwl_priv
*priv
=
265 container_of(work
, struct iwl_priv
, bt_full_concurrency
);
266 struct iwl_rxon_context
*ctx
;
268 mutex_lock(&priv
->mutex
);
270 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
273 /* dont send host command if rf-kill is on */
274 if (!iwl_is_ready_rf(priv
))
277 IWL_DEBUG_INFO(priv
, "BT coex in %s mode\n",
278 priv
->bt_full_concurrent
?
279 "full concurrency" : "3-wire");
282 * LQ & RXON updated cmds must be sent before BT Config cmd
283 * to avoid 3-wire collisions
285 for_each_context(priv
, ctx
) {
286 iwlagn_set_rxon_chain(priv
, ctx
);
287 iwlagn_commit_rxon(priv
, ctx
);
290 iwlagn_send_advance_bt_config(priv
);
292 mutex_unlock(&priv
->mutex
);
296 * iwl_bg_statistics_periodic - Timer callback to queue statistics
298 * This callback is provided in order to send a statistics request.
300 * This timer function is continually reset to execute within
301 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
302 * was received. We need to ensure we receive the statistics in order
303 * to update the temperature used for calibrating the TXPOWER.
305 static void iwl_bg_statistics_periodic(unsigned long data
)
307 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
309 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
312 /* dont send host command if rf-kill is on */
313 if (!iwl_is_ready_rf(priv
))
316 iwl_send_statistics_request(priv
, CMD_ASYNC
, false);
320 static void iwl_print_cont_event_trace(struct iwl_priv
*priv
, u32 base
,
321 u32 start_idx
, u32 num_events
,
325 u32 ptr
; /* SRAM byte address of log data */
326 u32 ev
, time
, data
; /* event log data */
327 unsigned long reg_flags
;
330 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 2 * sizeof(u32
));
332 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 3 * sizeof(u32
));
334 /* Make sure device is powered up for SRAM reads */
335 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
336 if (iwl_grab_nic_access(priv
)) {
337 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
341 /* Set starting address; reads will auto-increment */
342 iwl_write32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
346 * "time" is actually "data" for mode 0 (no timestamp).
347 * place event id # at far right for easier visual parsing.
349 for (i
= 0; i
< num_events
; i
++) {
350 ev
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
351 time
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
353 trace_iwlwifi_dev_ucode_cont_event(priv
,
356 data
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
357 trace_iwlwifi_dev_ucode_cont_event(priv
,
361 /* Allow device to power down */
362 iwl_release_nic_access(priv
);
363 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
366 static void iwl_continuous_event_trace(struct iwl_priv
*priv
)
368 u32 capacity
; /* event log capacity in # entries */
369 u32 base
; /* SRAM byte address of event log header */
370 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
371 u32 num_wraps
; /* # times uCode wrapped to top of log */
372 u32 next_entry
; /* index of next entry to be written by uCode */
374 base
= priv
->device_pointers
.error_event_table
;
375 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
376 capacity
= iwl_read_targ_mem(priv
, base
);
377 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
378 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
379 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
383 if (num_wraps
== priv
->event_log
.num_wraps
) {
384 iwl_print_cont_event_trace(priv
,
385 base
, priv
->event_log
.next_entry
,
386 next_entry
- priv
->event_log
.next_entry
,
388 priv
->event_log
.non_wraps_count
++;
390 if ((num_wraps
- priv
->event_log
.num_wraps
) > 1)
391 priv
->event_log
.wraps_more_count
++;
393 priv
->event_log
.wraps_once_count
++;
394 trace_iwlwifi_dev_ucode_wrap_event(priv
,
395 num_wraps
- priv
->event_log
.num_wraps
,
396 next_entry
, priv
->event_log
.next_entry
);
397 if (next_entry
< priv
->event_log
.next_entry
) {
398 iwl_print_cont_event_trace(priv
, base
,
399 priv
->event_log
.next_entry
,
400 capacity
- priv
->event_log
.next_entry
,
403 iwl_print_cont_event_trace(priv
, base
, 0,
406 iwl_print_cont_event_trace(priv
, base
,
407 next_entry
, capacity
- next_entry
,
410 iwl_print_cont_event_trace(priv
, base
, 0,
414 priv
->event_log
.num_wraps
= num_wraps
;
415 priv
->event_log
.next_entry
= next_entry
;
419 * iwl_bg_ucode_trace - Timer callback to log ucode event
421 * The timer is continually set to execute every
422 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
423 * this function is to perform continuous uCode event logging operation
426 static void iwl_bg_ucode_trace(unsigned long data
)
428 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
430 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
433 if (priv
->event_log
.ucode_trace
) {
434 iwl_continuous_event_trace(priv
);
435 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
436 mod_timer(&priv
->ucode_trace
,
437 jiffies
+ msecs_to_jiffies(UCODE_TRACE_PERIOD
));
441 static void iwl_bg_tx_flush(struct work_struct
*work
)
443 struct iwl_priv
*priv
=
444 container_of(work
, struct iwl_priv
, tx_flush
);
446 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
449 /* do nothing if rf-kill is on */
450 if (!iwl_is_ready_rf(priv
))
453 IWL_DEBUG_INFO(priv
, "device request: flush all tx frames\n");
454 iwlagn_dev_txfifo_flush(priv
, IWL_DROP_ALL
);
457 /*****************************************************************************
461 *****************************************************************************/
463 #ifdef CONFIG_IWLWIFI_DEBUG
466 * The following adds a new attribute to the sysfs representation
467 * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
468 * used for controlling the debug level.
470 * See the level definitions in iwl for details.
472 * The debug_level being managed using sysfs below is a per device debug
473 * level that is used instead of the global debug level if it (the per
474 * device debug level) is set.
476 static ssize_t
show_debug_level(struct device
*d
,
477 struct device_attribute
*attr
, char *buf
)
479 struct iwl_priv
*priv
= dev_get_drvdata(d
);
480 return sprintf(buf
, "0x%08X\n", iwl_get_debug_level(priv
));
482 static ssize_t
store_debug_level(struct device
*d
,
483 struct device_attribute
*attr
,
484 const char *buf
, size_t count
)
486 struct iwl_priv
*priv
= dev_get_drvdata(d
);
490 ret
= strict_strtoul(buf
, 0, &val
);
492 IWL_ERR(priv
, "%s is not in hex or decimal form.\n", buf
);
494 priv
->debug_level
= val
;
495 if (iwl_alloc_traffic_mem(priv
))
497 "Not enough memory to generate traffic log\n");
499 return strnlen(buf
, count
);
502 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
503 show_debug_level
, store_debug_level
);
506 #endif /* CONFIG_IWLWIFI_DEBUG */
509 static ssize_t
show_temperature(struct device
*d
,
510 struct device_attribute
*attr
, char *buf
)
512 struct iwl_priv
*priv
= dev_get_drvdata(d
);
514 if (!iwl_is_alive(priv
))
517 return sprintf(buf
, "%d\n", priv
->temperature
);
520 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
522 static ssize_t
show_tx_power(struct device
*d
,
523 struct device_attribute
*attr
, char *buf
)
525 struct iwl_priv
*priv
= dev_get_drvdata(d
);
527 if (!iwl_is_ready_rf(priv
))
528 return sprintf(buf
, "off\n");
530 return sprintf(buf
, "%d\n", priv
->tx_power_user_lmt
);
533 static ssize_t
store_tx_power(struct device
*d
,
534 struct device_attribute
*attr
,
535 const char *buf
, size_t count
)
537 struct iwl_priv
*priv
= dev_get_drvdata(d
);
541 ret
= strict_strtoul(buf
, 10, &val
);
543 IWL_INFO(priv
, "%s is not in decimal form.\n", buf
);
545 ret
= iwl_set_tx_power(priv
, val
, false);
547 IWL_ERR(priv
, "failed setting tx power (0x%d).\n",
555 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
557 static struct attribute
*iwl_sysfs_entries
[] = {
558 &dev_attr_temperature
.attr
,
559 &dev_attr_tx_power
.attr
,
560 #ifdef CONFIG_IWLWIFI_DEBUG
561 &dev_attr_debug_level
.attr
,
566 static struct attribute_group iwl_attribute_group
= {
567 .name
= NULL
, /* put in device directory */
568 .attrs
= iwl_sysfs_entries
,
571 /******************************************************************************
573 * uCode download functions
575 ******************************************************************************/
577 static void iwl_free_fw_desc(struct iwl_priv
*priv
, struct fw_desc
*desc
)
580 dma_free_coherent(priv
->bus
->dev
, desc
->len
,
581 desc
->v_addr
, desc
->p_addr
);
586 static void iwl_free_fw_img(struct iwl_priv
*priv
, struct fw_img
*img
)
588 iwl_free_fw_desc(priv
, &img
->code
);
589 iwl_free_fw_desc(priv
, &img
->data
);
592 static void iwl_dealloc_ucode(struct iwl_priv
*priv
)
594 iwl_free_fw_img(priv
, &priv
->ucode_rt
);
595 iwl_free_fw_img(priv
, &priv
->ucode_init
);
596 iwl_free_fw_img(priv
, &priv
->ucode_wowlan
);
599 static int iwl_alloc_fw_desc(struct iwl_priv
*priv
, struct fw_desc
*desc
,
600 const void *data
, size_t len
)
607 desc
->v_addr
= dma_alloc_coherent(priv
->bus
->dev
, len
,
608 &desc
->p_addr
, GFP_KERNEL
);
613 memcpy(desc
->v_addr
, data
, len
);
617 struct iwlagn_ucode_capabilities
{
618 u32 max_probe_length
;
619 u32 standard_phy_calibration_size
;
623 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
);
624 static int iwl_mac_setup_register(struct iwl_priv
*priv
,
625 struct iwlagn_ucode_capabilities
*capa
);
627 #define UCODE_EXPERIMENTAL_INDEX 100
628 #define UCODE_EXPERIMENTAL_TAG "exp"
630 static int __must_check
iwl_request_firmware(struct iwl_priv
*priv
, bool first
)
632 const char *name_pre
= priv
->cfg
->fw_name_pre
;
636 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
637 priv
->fw_index
= UCODE_EXPERIMENTAL_INDEX
;
638 strcpy(tag
, UCODE_EXPERIMENTAL_TAG
);
639 } else if (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
) {
641 priv
->fw_index
= priv
->cfg
->ucode_api_max
;
642 sprintf(tag
, "%d", priv
->fw_index
);
645 sprintf(tag
, "%d", priv
->fw_index
);
648 if (priv
->fw_index
< priv
->cfg
->ucode_api_min
) {
649 IWL_ERR(priv
, "no suitable firmware found!\n");
653 sprintf(priv
->firmware_name
, "%s%s%s", name_pre
, tag
, ".ucode");
655 IWL_DEBUG_INFO(priv
, "attempting to load firmware %s'%s'\n",
656 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
657 ? "EXPERIMENTAL " : "",
658 priv
->firmware_name
);
660 return request_firmware_nowait(THIS_MODULE
, 1, priv
->firmware_name
,
662 GFP_KERNEL
, priv
, iwl_ucode_callback
);
665 struct iwlagn_firmware_pieces
{
666 const void *inst
, *data
, *init
, *init_data
, *wowlan_inst
, *wowlan_data
;
667 size_t inst_size
, data_size
, init_size
, init_data_size
,
668 wowlan_inst_size
, wowlan_data_size
;
672 u32 init_evtlog_ptr
, init_evtlog_size
, init_errlog_ptr
;
673 u32 inst_evtlog_ptr
, inst_evtlog_size
, inst_errlog_ptr
;
676 static int iwlagn_load_legacy_firmware(struct iwl_priv
*priv
,
677 const struct firmware
*ucode_raw
,
678 struct iwlagn_firmware_pieces
*pieces
)
680 struct iwl_ucode_header
*ucode
= (void *)ucode_raw
->data
;
681 u32 api_ver
, hdr_size
;
684 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
685 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
690 if (ucode_raw
->size
< hdr_size
) {
691 IWL_ERR(priv
, "File size too small!\n");
694 pieces
->build
= le32_to_cpu(ucode
->u
.v2
.build
);
695 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v2
.inst_size
);
696 pieces
->data_size
= le32_to_cpu(ucode
->u
.v2
.data_size
);
697 pieces
->init_size
= le32_to_cpu(ucode
->u
.v2
.init_size
);
698 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v2
.init_data_size
);
699 src
= ucode
->u
.v2
.data
;
705 if (ucode_raw
->size
< hdr_size
) {
706 IWL_ERR(priv
, "File size too small!\n");
710 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v1
.inst_size
);
711 pieces
->data_size
= le32_to_cpu(ucode
->u
.v1
.data_size
);
712 pieces
->init_size
= le32_to_cpu(ucode
->u
.v1
.init_size
);
713 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v1
.init_data_size
);
714 src
= ucode
->u
.v1
.data
;
718 /* Verify size of file vs. image size info in file's header */
719 if (ucode_raw
->size
!= hdr_size
+ pieces
->inst_size
+
720 pieces
->data_size
+ pieces
->init_size
+
721 pieces
->init_data_size
) {
724 "uCode file size %d does not match expected size\n",
725 (int)ucode_raw
->size
);
730 src
+= pieces
->inst_size
;
732 src
+= pieces
->data_size
;
734 src
+= pieces
->init_size
;
735 pieces
->init_data
= src
;
736 src
+= pieces
->init_data_size
;
741 static int iwlagn_wanted_ucode_alternative
= 1;
743 static int iwlagn_load_firmware(struct iwl_priv
*priv
,
744 const struct firmware
*ucode_raw
,
745 struct iwlagn_firmware_pieces
*pieces
,
746 struct iwlagn_ucode_capabilities
*capa
)
748 struct iwl_tlv_ucode_header
*ucode
= (void *)ucode_raw
->data
;
749 struct iwl_ucode_tlv
*tlv
;
750 size_t len
= ucode_raw
->size
;
752 int wanted_alternative
= iwlagn_wanted_ucode_alternative
, tmp
;
755 enum iwl_ucode_tlv_type tlv_type
;
758 if (len
< sizeof(*ucode
)) {
759 IWL_ERR(priv
, "uCode has invalid length: %zd\n", len
);
763 if (ucode
->magic
!= cpu_to_le32(IWL_TLV_UCODE_MAGIC
)) {
764 IWL_ERR(priv
, "invalid uCode magic: 0X%x\n",
765 le32_to_cpu(ucode
->magic
));
770 * Check which alternatives are present, and "downgrade"
771 * when the chosen alternative is not present, warning
772 * the user when that happens. Some files may not have
773 * any alternatives, so don't warn in that case.
775 alternatives
= le64_to_cpu(ucode
->alternatives
);
776 tmp
= wanted_alternative
;
777 if (wanted_alternative
> 63)
778 wanted_alternative
= 63;
779 while (wanted_alternative
&& !(alternatives
& BIT(wanted_alternative
)))
780 wanted_alternative
--;
781 if (wanted_alternative
&& wanted_alternative
!= tmp
)
783 "uCode alternative %d not available, choosing %d\n",
784 tmp
, wanted_alternative
);
786 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
787 pieces
->build
= le32_to_cpu(ucode
->build
);
790 len
-= sizeof(*ucode
);
792 while (len
>= sizeof(*tlv
)) {
798 tlv_len
= le32_to_cpu(tlv
->length
);
799 tlv_type
= le16_to_cpu(tlv
->type
);
800 tlv_alt
= le16_to_cpu(tlv
->alternative
);
801 tlv_data
= tlv
->data
;
804 IWL_ERR(priv
, "invalid TLV len: %zd/%u\n",
808 len
-= ALIGN(tlv_len
, 4);
809 data
+= sizeof(*tlv
) + ALIGN(tlv_len
, 4);
812 * Alternative 0 is always valid.
814 * Skip alternative TLVs that are not selected.
816 if (tlv_alt
!= 0 && tlv_alt
!= wanted_alternative
)
820 case IWL_UCODE_TLV_INST
:
821 pieces
->inst
= tlv_data
;
822 pieces
->inst_size
= tlv_len
;
824 case IWL_UCODE_TLV_DATA
:
825 pieces
->data
= tlv_data
;
826 pieces
->data_size
= tlv_len
;
828 case IWL_UCODE_TLV_INIT
:
829 pieces
->init
= tlv_data
;
830 pieces
->init_size
= tlv_len
;
832 case IWL_UCODE_TLV_INIT_DATA
:
833 pieces
->init_data
= tlv_data
;
834 pieces
->init_data_size
= tlv_len
;
836 case IWL_UCODE_TLV_BOOT
:
837 IWL_ERR(priv
, "Found unexpected BOOT ucode\n");
839 case IWL_UCODE_TLV_PROBE_MAX_LEN
:
840 if (tlv_len
!= sizeof(u32
))
841 goto invalid_tlv_len
;
842 capa
->max_probe_length
=
843 le32_to_cpup((__le32
*)tlv_data
);
845 case IWL_UCODE_TLV_PAN
:
847 goto invalid_tlv_len
;
848 capa
->flags
|= IWL_UCODE_TLV_FLAGS_PAN
;
850 case IWL_UCODE_TLV_FLAGS
:
851 /* must be at least one u32 */
852 if (tlv_len
< sizeof(u32
))
853 goto invalid_tlv_len
;
854 /* and a proper number of u32s */
855 if (tlv_len
% sizeof(u32
))
856 goto invalid_tlv_len
;
858 * This driver only reads the first u32 as
859 * right now no more features are defined,
860 * if that changes then either the driver
861 * will not work with the new firmware, or
862 * it'll not take advantage of new features.
864 capa
->flags
= le32_to_cpup((__le32
*)tlv_data
);
866 case IWL_UCODE_TLV_INIT_EVTLOG_PTR
:
867 if (tlv_len
!= sizeof(u32
))
868 goto invalid_tlv_len
;
869 pieces
->init_evtlog_ptr
=
870 le32_to_cpup((__le32
*)tlv_data
);
872 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE
:
873 if (tlv_len
!= sizeof(u32
))
874 goto invalid_tlv_len
;
875 pieces
->init_evtlog_size
=
876 le32_to_cpup((__le32
*)tlv_data
);
878 case IWL_UCODE_TLV_INIT_ERRLOG_PTR
:
879 if (tlv_len
!= sizeof(u32
))
880 goto invalid_tlv_len
;
881 pieces
->init_errlog_ptr
=
882 le32_to_cpup((__le32
*)tlv_data
);
884 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR
:
885 if (tlv_len
!= sizeof(u32
))
886 goto invalid_tlv_len
;
887 pieces
->inst_evtlog_ptr
=
888 le32_to_cpup((__le32
*)tlv_data
);
890 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE
:
891 if (tlv_len
!= sizeof(u32
))
892 goto invalid_tlv_len
;
893 pieces
->inst_evtlog_size
=
894 le32_to_cpup((__le32
*)tlv_data
);
896 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR
:
897 if (tlv_len
!= sizeof(u32
))
898 goto invalid_tlv_len
;
899 pieces
->inst_errlog_ptr
=
900 le32_to_cpup((__le32
*)tlv_data
);
902 case IWL_UCODE_TLV_ENHANCE_SENS_TBL
:
904 goto invalid_tlv_len
;
905 priv
->enhance_sensitivity_table
= true;
907 case IWL_UCODE_TLV_WOWLAN_INST
:
908 pieces
->wowlan_inst
= tlv_data
;
909 pieces
->wowlan_inst_size
= tlv_len
;
911 case IWL_UCODE_TLV_WOWLAN_DATA
:
912 pieces
->wowlan_data
= tlv_data
;
913 pieces
->wowlan_data_size
= tlv_len
;
915 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE
:
916 if (tlv_len
!= sizeof(u32
))
917 goto invalid_tlv_len
;
918 capa
->standard_phy_calibration_size
=
919 le32_to_cpup((__le32
*)tlv_data
);
922 IWL_DEBUG_INFO(priv
, "unknown TLV: %d\n", tlv_type
);
928 IWL_ERR(priv
, "invalid TLV after parsing: %zd\n", len
);
929 iwl_print_hex_dump(priv
, IWL_DL_FW
, (u8
*)data
, len
);
936 IWL_ERR(priv
, "TLV %d has invalid size: %u\n", tlv_type
, tlv_len
);
937 iwl_print_hex_dump(priv
, IWL_DL_FW
, tlv_data
, tlv_len
);
943 * iwl_ucode_callback - callback when firmware was loaded
945 * If loaded successfully, copies the firmware into buffers
946 * for the card to fetch (via DMA).
948 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
)
950 struct iwl_priv
*priv
= context
;
951 struct iwl_ucode_header
*ucode
;
953 struct iwlagn_firmware_pieces pieces
;
954 const unsigned int api_max
= priv
->cfg
->ucode_api_max
;
955 const unsigned int api_min
= priv
->cfg
->ucode_api_min
;
959 struct iwlagn_ucode_capabilities ucode_capa
= {
960 .max_probe_length
= 200,
961 .standard_phy_calibration_size
=
962 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE
,
965 memset(&pieces
, 0, sizeof(pieces
));
968 if (priv
->fw_index
<= priv
->cfg
->ucode_api_max
)
970 "request for firmware file '%s' failed.\n",
971 priv
->firmware_name
);
975 IWL_DEBUG_INFO(priv
, "Loaded firmware file '%s' (%zd bytes).\n",
976 priv
->firmware_name
, ucode_raw
->size
);
978 /* Make sure that we got at least the API version number */
979 if (ucode_raw
->size
< 4) {
980 IWL_ERR(priv
, "File size way too small!\n");
984 /* Data from ucode file: header followed by uCode images */
985 ucode
= (struct iwl_ucode_header
*)ucode_raw
->data
;
988 err
= iwlagn_load_legacy_firmware(priv
, ucode_raw
, &pieces
);
990 err
= iwlagn_load_firmware(priv
, ucode_raw
, &pieces
,
996 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
997 build
= pieces
.build
;
1000 * api_ver should match the api version forming part of the
1001 * firmware filename ... but we don't check for that and only rely
1002 * on the API version read from firmware header from here on forward
1004 /* no api version check required for experimental uCode */
1005 if (priv
->fw_index
!= UCODE_EXPERIMENTAL_INDEX
) {
1006 if (api_ver
< api_min
|| api_ver
> api_max
) {
1008 "Driver unable to support your firmware API. "
1009 "Driver supports v%u, firmware is v%u.\n",
1014 if (api_ver
!= api_max
)
1016 "Firmware has old API version. Expected v%u, "
1017 "got v%u. New firmware can be obtained "
1018 "from http://www.intellinuxwireless.org.\n",
1023 sprintf(buildstr
, " build %u%s", build
,
1024 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
1029 IWL_INFO(priv
, "loaded firmware version %u.%u.%u.%u%s\n",
1030 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1031 IWL_UCODE_MINOR(priv
->ucode_ver
),
1032 IWL_UCODE_API(priv
->ucode_ver
),
1033 IWL_UCODE_SERIAL(priv
->ucode_ver
),
1036 snprintf(priv
->hw
->wiphy
->fw_version
,
1037 sizeof(priv
->hw
->wiphy
->fw_version
),
1039 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1040 IWL_UCODE_MINOR(priv
->ucode_ver
),
1041 IWL_UCODE_API(priv
->ucode_ver
),
1042 IWL_UCODE_SERIAL(priv
->ucode_ver
),
1046 * For any of the failures below (before allocating pci memory)
1047 * we will try to load a version with a smaller API -- maybe the
1048 * user just got a corrupted version of the latest API.
1051 IWL_DEBUG_INFO(priv
, "f/w package hdr ucode version raw = 0x%x\n",
1053 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime inst size = %Zd\n",
1055 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime data size = %Zd\n",
1057 IWL_DEBUG_INFO(priv
, "f/w package hdr init inst size = %Zd\n",
1059 IWL_DEBUG_INFO(priv
, "f/w package hdr init data size = %Zd\n",
1060 pieces
.init_data_size
);
1062 /* Verify that uCode images will fit in card's SRAM */
1063 if (pieces
.inst_size
> priv
->hw_params
.max_inst_size
) {
1064 IWL_ERR(priv
, "uCode instr len %Zd too large to fit in\n",
1069 if (pieces
.data_size
> priv
->hw_params
.max_data_size
) {
1070 IWL_ERR(priv
, "uCode data len %Zd too large to fit in\n",
1075 if (pieces
.init_size
> priv
->hw_params
.max_inst_size
) {
1076 IWL_ERR(priv
, "uCode init instr len %Zd too large to fit in\n",
1081 if (pieces
.init_data_size
> priv
->hw_params
.max_data_size
) {
1082 IWL_ERR(priv
, "uCode init data len %Zd too large to fit in\n",
1083 pieces
.init_data_size
);
1087 /* Allocate ucode buffers for card's bus-master loading ... */
1089 /* Runtime instructions and 2 copies of data:
1090 * 1) unmodified from disk
1091 * 2) backup cache for save/restore during power-downs */
1092 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_rt
.code
,
1093 pieces
.inst
, pieces
.inst_size
))
1095 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_rt
.data
,
1096 pieces
.data
, pieces
.data_size
))
1099 /* Initialization instructions and data */
1100 if (pieces
.init_size
&& pieces
.init_data_size
) {
1101 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_init
.code
,
1102 pieces
.init
, pieces
.init_size
))
1104 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_init
.data
,
1105 pieces
.init_data
, pieces
.init_data_size
))
1109 /* WoWLAN instructions and data */
1110 if (pieces
.wowlan_inst_size
&& pieces
.wowlan_data_size
) {
1111 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_wowlan
.code
,
1113 pieces
.wowlan_inst_size
))
1115 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_wowlan
.data
,
1117 pieces
.wowlan_data_size
))
1121 /* Now that we can no longer fail, copy information */
1124 * The (size - 16) / 12 formula is based on the information recorded
1125 * for each event, which is of mode 1 (including timestamp) for all
1126 * new microcodes that include this information.
1128 priv
->init_evtlog_ptr
= pieces
.init_evtlog_ptr
;
1129 if (pieces
.init_evtlog_size
)
1130 priv
->init_evtlog_size
= (pieces
.init_evtlog_size
- 16)/12;
1132 priv
->init_evtlog_size
=
1133 priv
->cfg
->base_params
->max_event_log_size
;
1134 priv
->init_errlog_ptr
= pieces
.init_errlog_ptr
;
1135 priv
->inst_evtlog_ptr
= pieces
.inst_evtlog_ptr
;
1136 if (pieces
.inst_evtlog_size
)
1137 priv
->inst_evtlog_size
= (pieces
.inst_evtlog_size
- 16)/12;
1139 priv
->inst_evtlog_size
=
1140 priv
->cfg
->base_params
->max_event_log_size
;
1141 priv
->inst_errlog_ptr
= pieces
.inst_errlog_ptr
;
1143 priv
->new_scan_threshold_behaviour
=
1144 !!(ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_NEWSCAN
);
1146 if ((priv
->cfg
->sku
& EEPROM_SKU_CAP_IPAN_ENABLE
) &&
1147 (ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_PAN
)) {
1148 priv
->valid_contexts
|= BIT(IWL_RXON_CTX_PAN
);
1149 priv
->sta_key_max_num
= STA_KEY_MAX_NUM_PAN
;
1151 priv
->sta_key_max_num
= STA_KEY_MAX_NUM
;
1153 if (priv
->valid_contexts
!= BIT(IWL_RXON_CTX_BSS
))
1154 priv
->cmd_queue
= IWL_IPAN_CMD_QUEUE_NUM
;
1156 priv
->cmd_queue
= IWL_DEFAULT_CMD_QUEUE_NUM
;
1159 * figure out the offset of chain noise reset and gain commands
1160 * base on the size of standard phy calibration commands table size
1162 if (ucode_capa
.standard_phy_calibration_size
>
1163 IWL_MAX_PHY_CALIBRATE_TBL_SIZE
)
1164 ucode_capa
.standard_phy_calibration_size
=
1165 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE
;
1167 priv
->phy_calib_chain_noise_reset_cmd
=
1168 ucode_capa
.standard_phy_calibration_size
;
1169 priv
->phy_calib_chain_noise_gain_cmd
=
1170 ucode_capa
.standard_phy_calibration_size
+ 1;
1172 /**************************************************
1173 * This is still part of probe() in a sense...
1175 * 9. Setup and register with mac80211 and debugfs
1176 **************************************************/
1177 err
= iwl_mac_setup_register(priv
, &ucode_capa
);
1181 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
1183 IWL_ERR(priv
, "failed to create debugfs files. Ignoring error: %d\n", err
);
1185 err
= sysfs_create_group(&(priv
->bus
->dev
->kobj
),
1186 &iwl_attribute_group
);
1188 IWL_ERR(priv
, "failed to create sysfs device attributes\n");
1192 /* We have our copies now, allow OS release its copies */
1193 release_firmware(ucode_raw
);
1194 complete(&priv
->firmware_loading_complete
);
1198 /* try next, if any */
1199 if (iwl_request_firmware(priv
, false))
1201 release_firmware(ucode_raw
);
1205 IWL_ERR(priv
, "failed to allocate pci memory\n");
1206 iwl_dealloc_ucode(priv
);
1208 complete(&priv
->firmware_loading_complete
);
1209 device_release_driver(priv
->bus
->dev
);
1210 release_firmware(ucode_raw
);
1213 static const char * const desc_lookup_text
[] = {
1218 "NMI_INTERRUPT_WDG",
1222 "HW_ERROR_TUNE_LOCK",
1223 "HW_ERROR_TEMPERATURE",
1224 "ILLEGAL_CHAN_FREQ",
1227 "NMI_INTERRUPT_HOST",
1228 "NMI_INTERRUPT_ACTION_PT",
1229 "NMI_INTERRUPT_UNKNOWN",
1230 "UCODE_VERSION_MISMATCH",
1231 "HW_ERROR_ABS_LOCK",
1232 "HW_ERROR_CAL_LOCK_FAIL",
1233 "NMI_INTERRUPT_INST_ACTION_PT",
1234 "NMI_INTERRUPT_DATA_ACTION_PT",
1236 "NMI_INTERRUPT_TRM",
1237 "NMI_INTERRUPT_BREAK_POINT",
1244 static struct { char *name
; u8 num
; } advanced_lookup
[] = {
1245 { "NMI_INTERRUPT_WDG", 0x34 },
1246 { "SYSASSERT", 0x35 },
1247 { "UCODE_VERSION_MISMATCH", 0x37 },
1248 { "BAD_COMMAND", 0x38 },
1249 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
1250 { "FATAL_ERROR", 0x3D },
1251 { "NMI_TRM_HW_ERR", 0x46 },
1252 { "NMI_INTERRUPT_TRM", 0x4C },
1253 { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
1254 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
1255 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
1256 { "NMI_INTERRUPT_HOST", 0x66 },
1257 { "NMI_INTERRUPT_ACTION_PT", 0x7C },
1258 { "NMI_INTERRUPT_UNKNOWN", 0x84 },
1259 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
1260 { "ADVANCED_SYSASSERT", 0 },
1263 static const char *desc_lookup(u32 num
)
1266 int max
= ARRAY_SIZE(desc_lookup_text
);
1269 return desc_lookup_text
[num
];
1271 max
= ARRAY_SIZE(advanced_lookup
) - 1;
1272 for (i
= 0; i
< max
; i
++) {
1273 if (advanced_lookup
[i
].num
== num
)
1276 return advanced_lookup
[i
].name
;
1279 #define ERROR_START_OFFSET (1 * sizeof(u32))
1280 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1282 void iwl_dump_nic_error_log(struct iwl_priv
*priv
)
1285 struct iwl_error_event_table table
;
1287 base
= priv
->device_pointers
.error_event_table
;
1288 if (priv
->ucode_type
== IWL_UCODE_INIT
) {
1290 base
= priv
->init_errlog_ptr
;
1293 base
= priv
->inst_errlog_ptr
;
1296 if (!iwlagn_hw_valid_rtc_data_addr(base
)) {
1298 "Not valid error log pointer 0x%08X for %s uCode\n",
1300 (priv
->ucode_type
== IWL_UCODE_INIT
)
1305 iwl_read_targ_mem_words(priv
, base
, &table
, sizeof(table
));
1307 if (ERROR_START_OFFSET
<= table
.valid
* ERROR_ELEM_SIZE
) {
1308 IWL_ERR(priv
, "Start IWL Error Log Dump:\n");
1309 IWL_ERR(priv
, "Status: 0x%08lX, count: %d\n",
1310 priv
->status
, table
.valid
);
1313 priv
->isr_stats
.err_code
= table
.error_id
;
1315 trace_iwlwifi_dev_ucode_error(priv
, table
.error_id
, table
.tsf_low
,
1316 table
.data1
, table
.data2
, table
.line
,
1317 table
.blink1
, table
.blink2
, table
.ilink1
,
1318 table
.ilink2
, table
.bcon_time
, table
.gp1
,
1319 table
.gp2
, table
.gp3
, table
.ucode_ver
,
1320 table
.hw_ver
, table
.brd_ver
);
1321 IWL_ERR(priv
, "0x%08X | %-28s\n", table
.error_id
,
1322 desc_lookup(table
.error_id
));
1323 IWL_ERR(priv
, "0x%08X | uPc\n", table
.pc
);
1324 IWL_ERR(priv
, "0x%08X | branchlink1\n", table
.blink1
);
1325 IWL_ERR(priv
, "0x%08X | branchlink2\n", table
.blink2
);
1326 IWL_ERR(priv
, "0x%08X | interruptlink1\n", table
.ilink1
);
1327 IWL_ERR(priv
, "0x%08X | interruptlink2\n", table
.ilink2
);
1328 IWL_ERR(priv
, "0x%08X | data1\n", table
.data1
);
1329 IWL_ERR(priv
, "0x%08X | data2\n", table
.data2
);
1330 IWL_ERR(priv
, "0x%08X | line\n", table
.line
);
1331 IWL_ERR(priv
, "0x%08X | beacon time\n", table
.bcon_time
);
1332 IWL_ERR(priv
, "0x%08X | tsf low\n", table
.tsf_low
);
1333 IWL_ERR(priv
, "0x%08X | tsf hi\n", table
.tsf_hi
);
1334 IWL_ERR(priv
, "0x%08X | time gp1\n", table
.gp1
);
1335 IWL_ERR(priv
, "0x%08X | time gp2\n", table
.gp2
);
1336 IWL_ERR(priv
, "0x%08X | time gp3\n", table
.gp3
);
1337 IWL_ERR(priv
, "0x%08X | uCode version\n", table
.ucode_ver
);
1338 IWL_ERR(priv
, "0x%08X | hw version\n", table
.hw_ver
);
1339 IWL_ERR(priv
, "0x%08X | board version\n", table
.brd_ver
);
1340 IWL_ERR(priv
, "0x%08X | hcmd\n", table
.hcmd
);
1343 #define EVENT_START_OFFSET (4 * sizeof(u32))
1346 * iwl_print_event_log - Dump error event log to syslog
1349 static int iwl_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
1350 u32 num_events
, u32 mode
,
1351 int pos
, char **buf
, size_t bufsz
)
1354 u32 base
; /* SRAM byte address of event log header */
1355 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
1356 u32 ptr
; /* SRAM byte address of log data */
1357 u32 ev
, time
, data
; /* event log data */
1358 unsigned long reg_flags
;
1360 if (num_events
== 0)
1363 base
= priv
->device_pointers
.log_event_table
;
1364 if (priv
->ucode_type
== IWL_UCODE_INIT
) {
1366 base
= priv
->init_evtlog_ptr
;
1369 base
= priv
->inst_evtlog_ptr
;
1373 event_size
= 2 * sizeof(u32
);
1375 event_size
= 3 * sizeof(u32
);
1377 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
1379 /* Make sure device is powered up for SRAM reads */
1380 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
1381 iwl_grab_nic_access(priv
);
1383 /* Set starting address; reads will auto-increment */
1384 iwl_write32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
1387 /* "time" is actually "data" for mode 0 (no timestamp).
1388 * place event id # at far right for easier visual parsing. */
1389 for (i
= 0; i
< num_events
; i
++) {
1390 ev
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
1391 time
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
1395 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
1396 "EVT_LOG:0x%08x:%04u\n",
1399 trace_iwlwifi_dev_ucode_event(priv
, 0,
1401 IWL_ERR(priv
, "EVT_LOG:0x%08x:%04u\n",
1405 data
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
1407 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
1408 "EVT_LOGT:%010u:0x%08x:%04u\n",
1411 IWL_ERR(priv
, "EVT_LOGT:%010u:0x%08x:%04u\n",
1413 trace_iwlwifi_dev_ucode_event(priv
, time
,
1419 /* Allow device to power down */
1420 iwl_release_nic_access(priv
);
1421 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
1426 * iwl_print_last_event_logs - Dump the newest # of event log to syslog
1428 static int iwl_print_last_event_logs(struct iwl_priv
*priv
, u32 capacity
,
1429 u32 num_wraps
, u32 next_entry
,
1431 int pos
, char **buf
, size_t bufsz
)
1434 * display the newest DEFAULT_LOG_ENTRIES entries
1435 * i.e the entries just before the next ont that uCode would fill.
1438 if (next_entry
< size
) {
1439 pos
= iwl_print_event_log(priv
,
1440 capacity
- (size
- next_entry
),
1441 size
- next_entry
, mode
,
1443 pos
= iwl_print_event_log(priv
, 0,
1447 pos
= iwl_print_event_log(priv
, next_entry
- size
,
1448 size
, mode
, pos
, buf
, bufsz
);
1450 if (next_entry
< size
) {
1451 pos
= iwl_print_event_log(priv
, 0, next_entry
,
1452 mode
, pos
, buf
, bufsz
);
1454 pos
= iwl_print_event_log(priv
, next_entry
- size
,
1455 size
, mode
, pos
, buf
, bufsz
);
1461 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
1463 int iwl_dump_nic_event_log(struct iwl_priv
*priv
, bool full_log
,
1464 char **buf
, bool display
)
1466 u32 base
; /* SRAM byte address of event log header */
1467 u32 capacity
; /* event log capacity in # entries */
1468 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
1469 u32 num_wraps
; /* # times uCode wrapped to top of log */
1470 u32 next_entry
; /* index of next entry to be written by uCode */
1471 u32 size
; /* # entries that we'll print */
1476 base
= priv
->device_pointers
.log_event_table
;
1477 if (priv
->ucode_type
== IWL_UCODE_INIT
) {
1478 logsize
= priv
->init_evtlog_size
;
1480 base
= priv
->init_evtlog_ptr
;
1482 logsize
= priv
->inst_evtlog_size
;
1484 base
= priv
->inst_evtlog_ptr
;
1487 if (!iwlagn_hw_valid_rtc_data_addr(base
)) {
1489 "Invalid event log pointer 0x%08X for %s uCode\n",
1491 (priv
->ucode_type
== IWL_UCODE_INIT
)
1496 /* event log header */
1497 capacity
= iwl_read_targ_mem(priv
, base
);
1498 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
1499 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
1500 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
1502 if (capacity
> logsize
) {
1503 IWL_ERR(priv
, "Log capacity %d is bogus, limit to %d entries\n",
1508 if (next_entry
> logsize
) {
1509 IWL_ERR(priv
, "Log write index %d is bogus, limit to %d\n",
1510 next_entry
, logsize
);
1511 next_entry
= logsize
;
1514 size
= num_wraps
? capacity
: next_entry
;
1516 /* bail out if nothing in log */
1518 IWL_ERR(priv
, "Start IWL Event Log Dump: nothing in log\n");
1522 /* enable/disable bt channel inhibition */
1523 priv
->bt_ch_announce
= iwlagn_bt_ch_announce
;
1525 #ifdef CONFIG_IWLWIFI_DEBUG
1526 if (!(iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) && !full_log
)
1527 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
1528 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
1530 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
1531 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
1533 IWL_ERR(priv
, "Start IWL Event Log Dump: display last %u entries\n",
1536 #ifdef CONFIG_IWLWIFI_DEBUG
1539 bufsz
= capacity
* 48;
1542 *buf
= kmalloc(bufsz
, GFP_KERNEL
);
1546 if ((iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) || full_log
) {
1548 * if uCode has wrapped back to top of log,
1549 * start at the oldest entry,
1550 * i.e the next one that uCode would fill.
1553 pos
= iwl_print_event_log(priv
, next_entry
,
1554 capacity
- next_entry
, mode
,
1556 /* (then/else) start at top of log */
1557 pos
= iwl_print_event_log(priv
, 0,
1558 next_entry
, mode
, pos
, buf
, bufsz
);
1560 pos
= iwl_print_last_event_logs(priv
, capacity
, num_wraps
,
1561 next_entry
, size
, mode
,
1564 pos
= iwl_print_last_event_logs(priv
, capacity
, num_wraps
,
1565 next_entry
, size
, mode
,
1571 static void iwl_rf_kill_ct_config(struct iwl_priv
*priv
)
1573 struct iwl_ct_kill_config cmd
;
1574 struct iwl_ct_kill_throttling_config adv_cmd
;
1575 unsigned long flags
;
1578 spin_lock_irqsave(&priv
->lock
, flags
);
1579 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
1580 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
1581 spin_unlock_irqrestore(&priv
->lock
, flags
);
1582 priv
->thermal_throttle
.ct_kill_toggle
= false;
1584 if (priv
->cfg
->base_params
->support_ct_kill_exit
) {
1585 adv_cmd
.critical_temperature_enter
=
1586 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
1587 adv_cmd
.critical_temperature_exit
=
1588 cpu_to_le32(priv
->hw_params
.ct_kill_exit_threshold
);
1590 ret
= trans_send_cmd_pdu(&priv
->trans
,
1591 REPLY_CT_KILL_CONFIG_CMD
,
1592 CMD_SYNC
, sizeof(adv_cmd
), &adv_cmd
);
1594 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1596 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1598 "critical temperature enter is %d,"
1600 priv
->hw_params
.ct_kill_threshold
,
1601 priv
->hw_params
.ct_kill_exit_threshold
);
1603 cmd
.critical_temperature_R
=
1604 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
1606 ret
= trans_send_cmd_pdu(&priv
->trans
,
1607 REPLY_CT_KILL_CONFIG_CMD
,
1608 CMD_SYNC
, sizeof(cmd
), &cmd
);
1610 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1612 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1614 "critical temperature is %d\n",
1615 priv
->hw_params
.ct_kill_threshold
);
1619 static int iwlagn_send_calib_cfg_rt(struct iwl_priv
*priv
, u32 cfg
)
1621 struct iwl_calib_cfg_cmd calib_cfg_cmd
;
1622 struct iwl_host_cmd cmd
= {
1623 .id
= CALIBRATION_CFG_CMD
,
1624 .len
= { sizeof(struct iwl_calib_cfg_cmd
), },
1625 .data
= { &calib_cfg_cmd
, },
1628 memset(&calib_cfg_cmd
, 0, sizeof(calib_cfg_cmd
));
1629 calib_cfg_cmd
.ucd_calib_cfg
.once
.is_enable
= IWL_CALIB_INIT_CFG_ALL
;
1630 calib_cfg_cmd
.ucd_calib_cfg
.once
.start
= cpu_to_le32(cfg
);
1632 return trans_send_cmd(&priv
->trans
, &cmd
);
1636 static int iwlagn_send_tx_ant_config(struct iwl_priv
*priv
, u8 valid_tx_ant
)
1638 struct iwl_tx_ant_config_cmd tx_ant_cmd
= {
1639 .valid
= cpu_to_le32(valid_tx_ant
),
1642 if (IWL_UCODE_API(priv
->ucode_ver
) > 1) {
1643 IWL_DEBUG_HC(priv
, "select valid tx ant: %u\n", valid_tx_ant
);
1644 return trans_send_cmd_pdu(&priv
->trans
,
1645 TX_ANT_CONFIGURATION_CMD
,
1647 sizeof(struct iwl_tx_ant_config_cmd
),
1650 IWL_DEBUG_HC(priv
, "TX_ANT_CONFIGURATION_CMD not supported\n");
1656 * iwl_alive_start - called after REPLY_ALIVE notification received
1657 * from protocol/runtime uCode (initialization uCode's
1658 * Alive gets handled by iwl_init_alive_start()).
1660 int iwl_alive_start(struct iwl_priv
*priv
)
1663 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
1665 /*TODO: this should go to the transport layer */
1666 iwl_reset_ict(priv
);
1668 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
1670 /* After the ALIVE response, we can send host commands to the uCode */
1671 set_bit(STATUS_ALIVE
, &priv
->status
);
1673 /* Enable watchdog to monitor the driver tx queues */
1674 iwl_setup_watchdog(priv
);
1676 if (iwl_is_rfkill(priv
))
1679 /* download priority table before any calibration request */
1680 if (priv
->cfg
->bt_params
&&
1681 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
1682 /* Configure Bluetooth device coexistence support */
1683 if (priv
->cfg
->bt_params
->bt_sco_disable
)
1684 priv
->bt_enable_pspoll
= false;
1686 priv
->bt_enable_pspoll
= true;
1688 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
1689 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
1690 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
1691 iwlagn_send_advance_bt_config(priv
);
1692 priv
->bt_valid
= IWLAGN_BT_VALID_ENABLE_FLAGS
;
1693 priv
->cur_rssi_ctx
= NULL
;
1695 iwlagn_send_prio_tbl(priv
);
1697 /* FIXME: w/a to force change uCode BT state machine */
1698 ret
= iwlagn_send_bt_env(priv
, IWL_BT_COEX_ENV_OPEN
,
1699 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
1702 ret
= iwlagn_send_bt_env(priv
, IWL_BT_COEX_ENV_CLOSE
,
1703 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
1708 * default is 2-wire BT coexexistence support
1710 iwl_send_bt_config(priv
);
1713 if (priv
->hw_params
.calib_rt_cfg
)
1714 iwlagn_send_calib_cfg_rt(priv
, priv
->hw_params
.calib_rt_cfg
);
1716 ieee80211_wake_queues(priv
->hw
);
1718 priv
->active_rate
= IWL_RATES_MASK
;
1720 /* Configure Tx antenna selection based on H/W config */
1721 iwlagn_send_tx_ant_config(priv
, priv
->cfg
->valid_tx_ant
);
1723 if (iwl_is_associated_ctx(ctx
) && !priv
->wowlan
) {
1724 struct iwl_rxon_cmd
*active_rxon
=
1725 (struct iwl_rxon_cmd
*)&ctx
->active
;
1726 /* apply any changes in staging */
1727 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
1728 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1730 struct iwl_rxon_context
*tmp
;
1731 /* Initialize our rx_config data */
1732 for_each_context(priv
, tmp
)
1733 iwl_connection_init_rx_config(priv
, tmp
);
1735 iwlagn_set_rxon_chain(priv
, ctx
);
1738 if (!priv
->wowlan
) {
1739 /* WoWLAN ucode will not reply in the same way, skip it */
1740 iwl_reset_run_time_calib(priv
);
1743 set_bit(STATUS_READY
, &priv
->status
);
1745 /* Configure the adapter for unassociated operation */
1746 ret
= iwlagn_commit_rxon(priv
, ctx
);
1750 /* At this point, the NIC is initialized and operational */
1751 iwl_rf_kill_ct_config(priv
);
1753 IWL_DEBUG_INFO(priv
, "ALIVE processing complete.\n");
1755 return iwl_power_update_mode(priv
, true);
1758 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
);
1760 static void __iwl_down(struct iwl_priv
*priv
)
1764 IWL_DEBUG_INFO(priv
, DRV_NAME
" is going down\n");
1766 iwl_scan_cancel_timeout(priv
, 200);
1768 exit_pending
= test_and_set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
1770 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
1771 * to prevent rearm timer */
1772 del_timer_sync(&priv
->watchdog
);
1774 iwl_clear_ucode_stations(priv
, NULL
);
1775 iwl_dealloc_bcast_stations(priv
);
1776 iwl_clear_driver_stations(priv
);
1778 /* reset BT coex data */
1779 priv
->bt_status
= 0;
1780 priv
->cur_rssi_ctx
= NULL
;
1781 priv
->bt_is_sco
= 0;
1782 if (priv
->cfg
->bt_params
)
1783 priv
->bt_traffic_load
=
1784 priv
->cfg
->bt_params
->bt_init_traffic_load
;
1786 priv
->bt_traffic_load
= 0;
1787 priv
->bt_full_concurrent
= false;
1788 priv
->bt_ci_compliance
= 0;
1790 /* Wipe out the EXIT_PENDING status bit if we are not actually
1791 * exiting the module */
1793 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
1795 if (priv
->mac80211_registered
)
1796 ieee80211_stop_queues(priv
->hw
);
1798 /* Clear out all status bits but a few that are stable across reset */
1799 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
1801 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
1802 STATUS_GEO_CONFIGURED
|
1803 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
1805 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
1806 STATUS_EXIT_PENDING
;
1808 trans_stop_device(&priv
->trans
);
1810 dev_kfree_skb(priv
->beacon_skb
);
1811 priv
->beacon_skb
= NULL
;
1814 static void iwl_down(struct iwl_priv
*priv
)
1816 mutex_lock(&priv
->mutex
);
1818 mutex_unlock(&priv
->mutex
);
1820 iwl_cancel_deferred_work(priv
);
1823 #define MAX_HW_RESTARTS 5
1825 static int __iwl_up(struct iwl_priv
*priv
)
1827 struct iwl_rxon_context
*ctx
;
1830 lockdep_assert_held(&priv
->mutex
);
1832 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
1833 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
1837 for_each_context(priv
, ctx
) {
1838 ret
= iwlagn_alloc_bcast_station(priv
, ctx
);
1840 iwl_dealloc_bcast_stations(priv
);
1845 ret
= iwlagn_run_init_ucode(priv
);
1847 IWL_ERR(priv
, "Failed to run INIT ucode: %d\n", ret
);
1851 ret
= iwlagn_load_ucode_wait_alive(priv
,
1855 IWL_ERR(priv
, "Failed to start RT ucode: %d\n", ret
);
1859 ret
= iwl_alive_start(priv
);
1865 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
1867 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
1869 IWL_ERR(priv
, "Unable to initialize device.\n");
1874 /*****************************************************************************
1876 * Workqueue callbacks
1878 *****************************************************************************/
1880 static void iwl_bg_run_time_calib_work(struct work_struct
*work
)
1882 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
1883 run_time_calib_work
);
1885 mutex_lock(&priv
->mutex
);
1887 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
1888 test_bit(STATUS_SCANNING
, &priv
->status
)) {
1889 mutex_unlock(&priv
->mutex
);
1893 if (priv
->start_calib
) {
1894 iwl_chain_noise_calibration(priv
);
1895 iwl_sensitivity_calibration(priv
);
1898 mutex_unlock(&priv
->mutex
);
1901 static void iwlagn_prepare_restart(struct iwl_priv
*priv
)
1903 struct iwl_rxon_context
*ctx
;
1904 bool bt_full_concurrent
;
1905 u8 bt_ci_compliance
;
1910 lockdep_assert_held(&priv
->mutex
);
1912 for_each_context(priv
, ctx
)
1917 * __iwl_down() will clear the BT status variables,
1918 * which is correct, but when we restart we really
1919 * want to keep them so restore them afterwards.
1921 * The restart process will later pick them up and
1922 * re-configure the hw when we reconfigure the BT
1925 bt_full_concurrent
= priv
->bt_full_concurrent
;
1926 bt_ci_compliance
= priv
->bt_ci_compliance
;
1927 bt_load
= priv
->bt_traffic_load
;
1928 bt_status
= priv
->bt_status
;
1929 bt_is_sco
= priv
->bt_is_sco
;
1933 priv
->bt_full_concurrent
= bt_full_concurrent
;
1934 priv
->bt_ci_compliance
= bt_ci_compliance
;
1935 priv
->bt_traffic_load
= bt_load
;
1936 priv
->bt_status
= bt_status
;
1937 priv
->bt_is_sco
= bt_is_sco
;
1940 static void iwl_bg_restart(struct work_struct
*data
)
1942 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
1944 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
1947 if (test_and_clear_bit(STATUS_FW_ERROR
, &priv
->status
)) {
1948 mutex_lock(&priv
->mutex
);
1949 iwlagn_prepare_restart(priv
);
1950 mutex_unlock(&priv
->mutex
);
1951 iwl_cancel_deferred_work(priv
);
1952 ieee80211_restart_hw(priv
->hw
);
1958 static int iwl_mac_offchannel_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
1959 struct ieee80211_channel
*chan
,
1960 enum nl80211_channel_type channel_type
,
1963 struct iwl_priv
*priv
= hw
->priv
;
1966 /* Not supported if we don't have PAN */
1967 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
))) {
1972 /* Not supported on pre-P2P firmware */
1973 if (!(priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
&
1974 BIT(NL80211_IFTYPE_P2P_CLIENT
))) {
1979 mutex_lock(&priv
->mutex
);
1981 if (!priv
->contexts
[IWL_RXON_CTX_PAN
].is_active
) {
1983 * If the PAN context is free, use the normal
1984 * way of doing remain-on-channel offload + TX.
1990 /* TODO: queue up if scanning? */
1991 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
1992 priv
->offchan_tx_skb
) {
1998 * max_scan_ie_len doesn't include the blank SSID or the header,
1999 * so need to add that again here.
2001 if (skb
->len
> hw
->wiphy
->max_scan_ie_len
+ 24 + 2) {
2006 priv
->offchan_tx_skb
= skb
;
2007 priv
->offchan_tx_timeout
= wait
;
2008 priv
->offchan_tx_chan
= chan
;
2010 ret
= iwl_scan_initiate(priv
, priv
->contexts
[IWL_RXON_CTX_PAN
].vif
,
2011 IWL_SCAN_OFFCH_TX
, chan
->band
);
2013 priv
->offchan_tx_skb
= NULL
;
2015 mutex_unlock(&priv
->mutex
);
2023 static int iwl_mac_offchannel_tx_cancel_wait(struct ieee80211_hw
*hw
)
2025 struct iwl_priv
*priv
= hw
->priv
;
2028 mutex_lock(&priv
->mutex
);
2030 if (!priv
->offchan_tx_skb
) {
2035 priv
->offchan_tx_skb
= NULL
;
2037 ret
= iwl_scan_cancel_timeout(priv
, 200);
2041 mutex_unlock(&priv
->mutex
);
2046 /*****************************************************************************
2048 * mac80211 entry point functions
2050 *****************************************************************************/
2052 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits
[] = {
2055 .types
= BIT(NL80211_IFTYPE_STATION
),
2059 .types
= BIT(NL80211_IFTYPE_AP
),
2063 static const struct ieee80211_iface_limit iwlagn_2sta_limits
[] = {
2066 .types
= BIT(NL80211_IFTYPE_STATION
),
2070 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits
[] = {
2073 .types
= BIT(NL80211_IFTYPE_STATION
),
2077 .types
= BIT(NL80211_IFTYPE_P2P_GO
) |
2078 BIT(NL80211_IFTYPE_AP
),
2082 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits
[] = {
2085 .types
= BIT(NL80211_IFTYPE_STATION
),
2089 .types
= BIT(NL80211_IFTYPE_P2P_CLIENT
),
2093 static const struct ieee80211_iface_combination
2094 iwlagn_iface_combinations_dualmode
[] = {
2095 { .num_different_channels
= 1,
2096 .max_interfaces
= 2,
2097 .beacon_int_infra_match
= true,
2098 .limits
= iwlagn_sta_ap_limits
,
2099 .n_limits
= ARRAY_SIZE(iwlagn_sta_ap_limits
),
2101 { .num_different_channels
= 1,
2102 .max_interfaces
= 2,
2103 .limits
= iwlagn_2sta_limits
,
2104 .n_limits
= ARRAY_SIZE(iwlagn_2sta_limits
),
2108 static const struct ieee80211_iface_combination
2109 iwlagn_iface_combinations_p2p
[] = {
2110 { .num_different_channels
= 1,
2111 .max_interfaces
= 2,
2112 .beacon_int_infra_match
= true,
2113 .limits
= iwlagn_p2p_sta_go_limits
,
2114 .n_limits
= ARRAY_SIZE(iwlagn_p2p_sta_go_limits
),
2116 { .num_different_channels
= 1,
2117 .max_interfaces
= 2,
2118 .limits
= iwlagn_p2p_2sta_limits
,
2119 .n_limits
= ARRAY_SIZE(iwlagn_p2p_2sta_limits
),
2124 * Not a mac80211 entry point function, but it fits in with all the
2125 * other mac80211 functions grouped here.
2127 static int iwl_mac_setup_register(struct iwl_priv
*priv
,
2128 struct iwlagn_ucode_capabilities
*capa
)
2131 struct ieee80211_hw
*hw
= priv
->hw
;
2132 struct iwl_rxon_context
*ctx
;
2134 hw
->rate_control_algorithm
= "iwl-agn-rs";
2136 /* Tell mac80211 our characteristics */
2137 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
2138 IEEE80211_HW_AMPDU_AGGREGATION
|
2139 IEEE80211_HW_NEED_DTIM_PERIOD
|
2140 IEEE80211_HW_SPECTRUM_MGMT
|
2141 IEEE80211_HW_REPORTS_TX_ACK_STATUS
;
2143 hw
->max_tx_aggregation_subframes
= LINK_QUAL_AGG_FRAME_LIMIT_DEF
;
2145 hw
->flags
|= IEEE80211_HW_SUPPORTS_PS
|
2146 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
;
2148 if (priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
)
2149 hw
->flags
|= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
2150 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
2152 if (capa
->flags
& IWL_UCODE_TLV_FLAGS_MFP
)
2153 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
2155 hw
->sta_data_size
= sizeof(struct iwl_station_priv
);
2156 hw
->vif_data_size
= sizeof(struct iwl_vif_priv
);
2158 for_each_context(priv
, ctx
) {
2159 hw
->wiphy
->interface_modes
|= ctx
->interface_modes
;
2160 hw
->wiphy
->interface_modes
|= ctx
->exclusive_interface_modes
;
2163 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
2165 if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)) {
2166 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_p2p
;
2167 hw
->wiphy
->n_iface_combinations
=
2168 ARRAY_SIZE(iwlagn_iface_combinations_p2p
);
2169 } else if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_AP
)) {
2170 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_dualmode
;
2171 hw
->wiphy
->n_iface_combinations
=
2172 ARRAY_SIZE(iwlagn_iface_combinations_dualmode
);
2175 hw
->wiphy
->max_remain_on_channel_duration
= 1000;
2177 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
|
2178 WIPHY_FLAG_DISABLE_BEACON_HINTS
|
2179 WIPHY_FLAG_IBSS_RSN
;
2181 if (priv
->ucode_wowlan
.code
.len
&& device_can_wakeup(priv
->bus
->dev
)) {
2182 hw
->wiphy
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
2183 WIPHY_WOWLAN_DISCONNECT
|
2184 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
2185 WIPHY_WOWLAN_RFKILL_RELEASE
;
2186 if (!iwlagn_mod_params
.sw_crypto
)
2187 hw
->wiphy
->wowlan
.flags
|=
2188 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
2189 WIPHY_WOWLAN_GTK_REKEY_FAILURE
;
2191 hw
->wiphy
->wowlan
.n_patterns
= IWLAGN_WOWLAN_MAX_PATTERNS
;
2192 hw
->wiphy
->wowlan
.pattern_min_len
=
2193 IWLAGN_WOWLAN_MIN_PATTERN_LEN
;
2194 hw
->wiphy
->wowlan
.pattern_max_len
=
2195 IWLAGN_WOWLAN_MAX_PATTERN_LEN
;
2198 if (iwlagn_mod_params
.power_save
)
2199 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
2201 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
2203 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
2204 /* we create the 802.11 header and a zero-length SSID element */
2205 hw
->wiphy
->max_scan_ie_len
= capa
->max_probe_length
- 24 - 2;
2207 /* Default value; 4 EDCA QOS priorities */
2210 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
2212 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
2213 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
2214 &priv
->bands
[IEEE80211_BAND_2GHZ
];
2215 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
2216 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
2217 &priv
->bands
[IEEE80211_BAND_5GHZ
];
2219 iwl_leds_init(priv
);
2221 ret
= ieee80211_register_hw(priv
->hw
);
2223 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
2226 priv
->mac80211_registered
= 1;
2232 static int iwlagn_mac_start(struct ieee80211_hw
*hw
)
2234 struct iwl_priv
*priv
= hw
->priv
;
2237 IWL_DEBUG_MAC80211(priv
, "enter\n");
2239 /* we should be verifying the device is ready to be opened */
2240 mutex_lock(&priv
->mutex
);
2241 ret
= __iwl_up(priv
);
2242 mutex_unlock(&priv
->mutex
);
2246 IWL_DEBUG_INFO(priv
, "Start UP work done.\n");
2248 /* Now we should be done, and the READY bit should be set. */
2249 if (WARN_ON(!test_bit(STATUS_READY
, &priv
->status
)))
2252 iwlagn_led_enable(priv
);
2255 IWL_DEBUG_MAC80211(priv
, "leave\n");
2259 static void iwlagn_mac_stop(struct ieee80211_hw
*hw
)
2261 struct iwl_priv
*priv
= hw
->priv
;
2263 IWL_DEBUG_MAC80211(priv
, "enter\n");
2272 flush_workqueue(priv
->workqueue
);
2274 /* User space software may expect getting rfkill changes
2275 * even if interface is down */
2276 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
2277 iwl_enable_rfkill_int(priv
);
2279 IWL_DEBUG_MAC80211(priv
, "leave\n");
2283 static int iwlagn_send_patterns(struct iwl_priv
*priv
,
2284 struct cfg80211_wowlan
*wowlan
)
2286 struct iwlagn_wowlan_patterns_cmd
*pattern_cmd
;
2287 struct iwl_host_cmd cmd
= {
2288 .id
= REPLY_WOWLAN_PATTERNS
,
2289 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
2294 if (!wowlan
->n_patterns
)
2297 cmd
.len
[0] = sizeof(*pattern_cmd
) +
2298 wowlan
->n_patterns
* sizeof(struct iwlagn_wowlan_pattern
);
2300 pattern_cmd
= kmalloc(cmd
.len
[0], GFP_KERNEL
);
2304 pattern_cmd
->n_patterns
= cpu_to_le32(wowlan
->n_patterns
);
2306 for (i
= 0; i
< wowlan
->n_patterns
; i
++) {
2307 int mask_len
= DIV_ROUND_UP(wowlan
->patterns
[i
].pattern_len
, 8);
2309 memcpy(&pattern_cmd
->patterns
[i
].mask
,
2310 wowlan
->patterns
[i
].mask
, mask_len
);
2311 memcpy(&pattern_cmd
->patterns
[i
].pattern
,
2312 wowlan
->patterns
[i
].pattern
,
2313 wowlan
->patterns
[i
].pattern_len
);
2314 pattern_cmd
->patterns
[i
].mask_size
= mask_len
;
2315 pattern_cmd
->patterns
[i
].pattern_size
=
2316 wowlan
->patterns
[i
].pattern_len
;
2319 cmd
.data
[0] = pattern_cmd
;
2320 err
= trans_send_cmd(&priv
->trans
, &cmd
);
2326 static void iwlagn_mac_set_rekey_data(struct ieee80211_hw
*hw
,
2327 struct ieee80211_vif
*vif
,
2328 struct cfg80211_gtk_rekey_data
*data
)
2330 struct iwl_priv
*priv
= hw
->priv
;
2332 if (iwlagn_mod_params
.sw_crypto
)
2335 mutex_lock(&priv
->mutex
);
2337 if (priv
->contexts
[IWL_RXON_CTX_BSS
].vif
!= vif
)
2340 memcpy(priv
->kek
, data
->kek
, NL80211_KEK_LEN
);
2341 memcpy(priv
->kck
, data
->kck
, NL80211_KCK_LEN
);
2342 priv
->replay_ctr
= cpu_to_le64(be64_to_cpup((__be64
*)&data
->replay_ctr
));
2343 priv
->have_rekey_data
= true;
2346 mutex_unlock(&priv
->mutex
);
2349 struct wowlan_key_data
{
2350 struct iwl_rxon_context
*ctx
;
2351 struct iwlagn_wowlan_rsc_tsc_params_cmd
*rsc_tsc
;
2352 struct iwlagn_wowlan_tkip_params_cmd
*tkip
;
2354 bool error
, use_rsc_tsc
, use_tkip
;
2358 static void iwlagn_convert_p1k(u16
*p1k
, __le16
*out
)
2362 for (i
= 0; i
< IWLAGN_P1K_SIZE
; i
++)
2363 out
[i
] = cpu_to_le16(p1k
[i
]);
2366 static void iwlagn_wowlan_program_keys(struct ieee80211_hw
*hw
,
2367 struct ieee80211_vif
*vif
,
2368 struct ieee80211_sta
*sta
,
2369 struct ieee80211_key_conf
*key
,
2372 struct iwl_priv
*priv
= hw
->priv
;
2373 struct wowlan_key_data
*data
= _data
;
2374 struct iwl_rxon_context
*ctx
= data
->ctx
;
2375 struct aes_sc
*aes_sc
, *aes_tx_sc
= NULL
;
2376 struct tkip_sc
*tkip_sc
, *tkip_tx_sc
= NULL
;
2377 struct iwlagn_p1k_cache
*rx_p1ks
;
2379 struct ieee80211_key_seq seq
;
2380 u32 cur_rx_iv32
= 0;
2381 u16 p1k
[IWLAGN_P1K_SIZE
];
2384 mutex_lock(&priv
->mutex
);
2386 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
2387 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) &&
2388 !sta
&& !ctx
->key_mapping_keys
)
2389 ret
= iwl_set_default_wep_key(priv
, ctx
, key
);
2391 ret
= iwl_set_dynamic_key(priv
, ctx
, key
, sta
);
2394 IWL_ERR(priv
, "Error setting key during suspend!\n");
2398 switch (key
->cipher
) {
2399 case WLAN_CIPHER_SUITE_TKIP
:
2401 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.unicast_rsc
;
2402 tkip_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.tkip
.tsc
;
2404 rx_p1ks
= data
->tkip
->rx_uni
;
2406 ieee80211_get_key_tx_seq(key
, &seq
);
2407 tkip_tx_sc
->iv16
= cpu_to_le16(seq
.tkip
.iv16
);
2408 tkip_tx_sc
->iv32
= cpu_to_le32(seq
.tkip
.iv32
);
2410 ieee80211_get_tkip_p1k_iv(key
, seq
.tkip
.iv32
, p1k
);
2411 iwlagn_convert_p1k(p1k
, data
->tkip
->tx
.p1k
);
2413 memcpy(data
->tkip
->mic_keys
.tx
,
2414 &key
->key
[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY
],
2415 IWLAGN_MIC_KEY_SIZE
);
2417 rx_mic_key
= data
->tkip
->mic_keys
.rx_unicast
;
2419 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.multicast_rsc
;
2420 rx_p1ks
= data
->tkip
->rx_multi
;
2421 rx_mic_key
= data
->tkip
->mic_keys
.rx_mcast
;
2425 * For non-QoS this relies on the fact that both the uCode and
2426 * mac80211 use TID 0 (as they need to to avoid replay attacks)
2427 * for checking the IV in the frames.
2429 for (i
= 0; i
< IWLAGN_NUM_RSC
; i
++) {
2430 ieee80211_get_key_rx_seq(key
, i
, &seq
);
2431 tkip_sc
[i
].iv16
= cpu_to_le16(seq
.tkip
.iv16
);
2432 tkip_sc
[i
].iv32
= cpu_to_le32(seq
.tkip
.iv32
);
2433 /* wrapping isn't allowed, AP must rekey */
2434 if (seq
.tkip
.iv32
> cur_rx_iv32
)
2435 cur_rx_iv32
= seq
.tkip
.iv32
;
2438 ieee80211_get_tkip_rx_p1k(key
, data
->bssid
, cur_rx_iv32
, p1k
);
2439 iwlagn_convert_p1k(p1k
, rx_p1ks
[0].p1k
);
2440 ieee80211_get_tkip_rx_p1k(key
, data
->bssid
,
2441 cur_rx_iv32
+ 1, p1k
);
2442 iwlagn_convert_p1k(p1k
, rx_p1ks
[1].p1k
);
2445 &key
->key
[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
],
2446 IWLAGN_MIC_KEY_SIZE
);
2448 data
->use_tkip
= true;
2449 data
->use_rsc_tsc
= true;
2451 case WLAN_CIPHER_SUITE_CCMP
:
2453 u8
*pn
= seq
.ccmp
.pn
;
2455 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.unicast_rsc
;
2456 aes_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.aes
.tsc
;
2458 ieee80211_get_key_tx_seq(key
, &seq
);
2459 aes_tx_sc
->pn
= cpu_to_le64(
2462 ((u64
)pn
[3] << 16) |
2463 ((u64
)pn
[2] << 24) |
2464 ((u64
)pn
[1] << 32) |
2465 ((u64
)pn
[0] << 40));
2467 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.multicast_rsc
;
2470 * For non-QoS this relies on the fact that both the uCode and
2471 * mac80211 use TID 0 for checking the IV in the frames.
2473 for (i
= 0; i
< IWLAGN_NUM_RSC
; i
++) {
2474 u8
*pn
= seq
.ccmp
.pn
;
2476 ieee80211_get_key_rx_seq(key
, i
, &seq
);
2477 aes_sc
->pn
= cpu_to_le64(
2480 ((u64
)pn
[3] << 16) |
2481 ((u64
)pn
[2] << 24) |
2482 ((u64
)pn
[1] << 32) |
2483 ((u64
)pn
[0] << 40));
2485 data
->use_rsc_tsc
= true;
2489 mutex_unlock(&priv
->mutex
);
2492 static int iwlagn_mac_suspend(struct ieee80211_hw
*hw
,
2493 struct cfg80211_wowlan
*wowlan
)
2495 struct iwl_priv
*priv
= hw
->priv
;
2496 struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd
;
2497 struct iwl_rxon_cmd rxon
;
2498 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2499 struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd
;
2500 struct iwlagn_wowlan_tkip_params_cmd tkip_cmd
= {};
2501 struct wowlan_key_data key_data
= {
2503 .bssid
= ctx
->active
.bssid_addr
,
2504 .use_rsc_tsc
= false,
2511 if (WARN_ON(!wowlan
))
2514 mutex_lock(&priv
->mutex
);
2516 /* Don't attempt WoWLAN when not associated, tear down instead. */
2517 if (!ctx
->vif
|| ctx
->vif
->type
!= NL80211_IFTYPE_STATION
||
2518 !iwl_is_associated_ctx(ctx
)) {
2523 key_data
.rsc_tsc
= kzalloc(sizeof(*key_data
.rsc_tsc
), GFP_KERNEL
);
2524 if (!key_data
.rsc_tsc
) {
2529 memset(&wakeup_filter_cmd
, 0, sizeof(wakeup_filter_cmd
));
2532 * We know the last used seqno, and the uCode expects to know that
2533 * one, it will increment before TX.
2535 seq
= le16_to_cpu(priv
->last_seq_ctl
) & IEEE80211_SCTL_SEQ
;
2536 wakeup_filter_cmd
.non_qos_seq
= cpu_to_le16(seq
);
2539 * For QoS counters, we store the one to use next, so subtract 0x10
2540 * since the uCode will add 0x10 before using the value.
2542 for (i
= 0; i
< 8; i
++) {
2543 seq
= priv
->stations
[IWL_AP_ID
].tid
[i
].seq_number
;
2545 wakeup_filter_cmd
.qos_seq
[i
] = cpu_to_le16(seq
);
2548 if (wowlan
->disconnect
)
2549 wakeup_filter_cmd
.enabled
|=
2550 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS
|
2551 IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE
);
2552 if (wowlan
->magic_pkt
)
2553 wakeup_filter_cmd
.enabled
|=
2554 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET
);
2555 if (wowlan
->gtk_rekey_failure
)
2556 wakeup_filter_cmd
.enabled
|=
2557 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL
);
2558 if (wowlan
->eap_identity_req
)
2559 wakeup_filter_cmd
.enabled
|=
2560 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ
);
2561 if (wowlan
->four_way_handshake
)
2562 wakeup_filter_cmd
.enabled
|=
2563 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE
);
2564 if (wowlan
->rfkill_release
)
2565 wakeup_filter_cmd
.enabled
|=
2566 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_RFKILL
);
2567 if (wowlan
->n_patterns
)
2568 wakeup_filter_cmd
.enabled
|=
2569 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH
);
2571 iwl_scan_cancel_timeout(priv
, 200);
2573 memcpy(&rxon
, &ctx
->active
, sizeof(rxon
));
2575 trans_stop_device(&priv
->trans
);
2577 priv
->wowlan
= true;
2579 ret
= iwlagn_load_ucode_wait_alive(priv
, &priv
->ucode_wowlan
,
2584 /* now configure WoWLAN ucode */
2585 ret
= iwl_alive_start(priv
);
2589 memcpy(&ctx
->staging
, &rxon
, sizeof(rxon
));
2590 ret
= iwlagn_commit_rxon(priv
, ctx
);
2594 ret
= iwl_power_update_mode(priv
, true);
2598 if (!iwlagn_mod_params
.sw_crypto
) {
2599 /* mark all keys clear */
2600 priv
->ucode_key_table
= 0;
2601 ctx
->key_mapping_keys
= 0;
2604 * This needs to be unlocked due to lock ordering
2605 * constraints. Since we're in the suspend path
2606 * that isn't really a problem though.
2608 mutex_unlock(&priv
->mutex
);
2609 ieee80211_iter_keys(priv
->hw
, ctx
->vif
,
2610 iwlagn_wowlan_program_keys
,
2612 mutex_lock(&priv
->mutex
);
2613 if (key_data
.error
) {
2618 if (key_data
.use_rsc_tsc
) {
2619 struct iwl_host_cmd rsc_tsc_cmd
= {
2620 .id
= REPLY_WOWLAN_TSC_RSC_PARAMS
,
2622 .data
[0] = key_data
.rsc_tsc
,
2623 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
2624 .len
[0] = sizeof(*key_data
.rsc_tsc
),
2627 ret
= trans_send_cmd(&priv
->trans
, &rsc_tsc_cmd
);
2632 if (key_data
.use_tkip
) {
2633 ret
= trans_send_cmd_pdu(&priv
->trans
,
2634 REPLY_WOWLAN_TKIP_PARAMS
,
2635 CMD_SYNC
, sizeof(tkip_cmd
),
2641 if (priv
->have_rekey_data
) {
2642 memset(&kek_kck_cmd
, 0, sizeof(kek_kck_cmd
));
2643 memcpy(kek_kck_cmd
.kck
, priv
->kck
, NL80211_KCK_LEN
);
2644 kek_kck_cmd
.kck_len
= cpu_to_le16(NL80211_KCK_LEN
);
2645 memcpy(kek_kck_cmd
.kek
, priv
->kek
, NL80211_KEK_LEN
);
2646 kek_kck_cmd
.kek_len
= cpu_to_le16(NL80211_KEK_LEN
);
2647 kek_kck_cmd
.replay_ctr
= priv
->replay_ctr
;
2649 ret
= trans_send_cmd_pdu(&priv
->trans
,
2650 REPLY_WOWLAN_KEK_KCK_MATERIAL
,
2651 CMD_SYNC
, sizeof(kek_kck_cmd
),
2658 ret
= trans_send_cmd_pdu(&priv
->trans
, REPLY_WOWLAN_WAKEUP_FILTER
,
2659 CMD_SYNC
, sizeof(wakeup_filter_cmd
),
2660 &wakeup_filter_cmd
);
2664 ret
= iwlagn_send_patterns(priv
, wowlan
);
2668 device_set_wakeup_enable(priv
->bus
->dev
, true);
2670 /* Now let the ucode operate on its own */
2671 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2672 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE
);
2677 priv
->wowlan
= false;
2678 iwlagn_prepare_restart(priv
);
2679 ieee80211_restart_hw(priv
->hw
);
2681 mutex_unlock(&priv
->mutex
);
2682 kfree(key_data
.rsc_tsc
);
2686 static int iwlagn_mac_resume(struct ieee80211_hw
*hw
)
2688 struct iwl_priv
*priv
= hw
->priv
;
2689 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2690 struct ieee80211_vif
*vif
;
2691 unsigned long flags
;
2692 u32 base
, status
= 0xffffffff;
2695 mutex_lock(&priv
->mutex
);
2697 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
2698 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE
);
2700 base
= priv
->device_pointers
.error_event_table
;
2701 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
2702 spin_lock_irqsave(&priv
->reg_lock
, flags
);
2703 ret
= iwl_grab_nic_access_silent(priv
);
2705 iwl_write32(priv
, HBUS_TARG_MEM_RADDR
, base
);
2706 status
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
2707 iwl_release_nic_access(priv
);
2709 spin_unlock_irqrestore(&priv
->reg_lock
, flags
);
2711 #ifdef CONFIG_IWLWIFI_DEBUGFS
2713 if (!priv
->wowlan_sram
)
2715 kzalloc(priv
->ucode_wowlan
.data
.len
,
2718 if (priv
->wowlan_sram
)
2719 _iwl_read_targ_mem_words(
2720 priv
, 0x800000, priv
->wowlan_sram
,
2721 priv
->ucode_wowlan
.data
.len
/ 4);
2726 /* we'll clear ctx->vif during iwlagn_prepare_restart() */
2729 priv
->wowlan
= false;
2731 device_set_wakeup_enable(priv
->bus
->dev
, false);
2733 iwlagn_prepare_restart(priv
);
2735 memset((void *)&ctx
->active
, 0, sizeof(ctx
->active
));
2736 iwl_connection_init_rx_config(priv
, ctx
);
2737 iwlagn_set_rxon_chain(priv
, ctx
);
2739 mutex_unlock(&priv
->mutex
);
2741 ieee80211_resume_disconnect(vif
);
2747 static void iwlagn_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
2749 struct iwl_priv
*priv
= hw
->priv
;
2751 IWL_DEBUG_MACDUMP(priv
, "enter\n");
2753 IWL_DEBUG_TX(priv
, "dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
2754 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
2756 if (iwlagn_tx_skb(priv
, skb
))
2757 dev_kfree_skb_any(skb
);
2759 IWL_DEBUG_MACDUMP(priv
, "leave\n");
2762 static void iwlagn_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2763 struct ieee80211_vif
*vif
,
2764 struct ieee80211_key_conf
*keyconf
,
2765 struct ieee80211_sta
*sta
,
2766 u32 iv32
, u16
*phase1key
)
2768 struct iwl_priv
*priv
= hw
->priv
;
2770 iwl_update_tkip_key(priv
, vif
, keyconf
, sta
, iv32
, phase1key
);
2773 static int iwlagn_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
2774 struct ieee80211_vif
*vif
,
2775 struct ieee80211_sta
*sta
,
2776 struct ieee80211_key_conf
*key
)
2778 struct iwl_priv
*priv
= hw
->priv
;
2779 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2780 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
2782 bool is_default_wep_key
= false;
2784 IWL_DEBUG_MAC80211(priv
, "enter\n");
2786 if (iwlagn_mod_params
.sw_crypto
) {
2787 IWL_DEBUG_MAC80211(priv
, "leave - hwcrypto disabled\n");
2792 * We could program these keys into the hardware as well, but we
2793 * don't expect much multicast traffic in IBSS and having keys
2794 * for more stations is probably more useful.
2796 * Mark key TX-only and return 0.
2798 if (vif
->type
== NL80211_IFTYPE_ADHOC
&&
2799 !(key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)) {
2800 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
2804 /* If they key was TX-only, accept deletion */
2805 if (cmd
== DISABLE_KEY
&& key
->hw_key_idx
== WEP_INVALID_OFFSET
)
2808 mutex_lock(&priv
->mutex
);
2809 iwl_scan_cancel_timeout(priv
, 100);
2811 BUILD_BUG_ON(WEP_INVALID_OFFSET
== IWLAGN_HW_KEY_DEFAULT
);
2814 * If we are getting WEP group key and we didn't receive any key mapping
2815 * so far, we are in legacy wep mode (group key only), otherwise we are
2817 * In legacy wep mode, we use another host command to the uCode.
2819 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
2820 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) && !sta
) {
2822 is_default_wep_key
= !ctx
->key_mapping_keys
;
2824 is_default_wep_key
=
2825 key
->hw_key_idx
== IWLAGN_HW_KEY_DEFAULT
;
2831 if (is_default_wep_key
) {
2832 ret
= iwl_set_default_wep_key(priv
, vif_priv
->ctx
, key
);
2835 ret
= iwl_set_dynamic_key(priv
, vif_priv
->ctx
, key
, sta
);
2838 * can't add key for RX, but we don't need it
2839 * in the device for TX so still return 0
2842 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
2845 IWL_DEBUG_MAC80211(priv
, "enable hwcrypto key\n");
2848 if (is_default_wep_key
)
2849 ret
= iwl_remove_default_wep_key(priv
, ctx
, key
);
2851 ret
= iwl_remove_dynamic_key(priv
, ctx
, key
, sta
);
2853 IWL_DEBUG_MAC80211(priv
, "disable hwcrypto key\n");
2859 mutex_unlock(&priv
->mutex
);
2860 IWL_DEBUG_MAC80211(priv
, "leave\n");
2865 static int iwlagn_mac_ampdu_action(struct ieee80211_hw
*hw
,
2866 struct ieee80211_vif
*vif
,
2867 enum ieee80211_ampdu_mlme_action action
,
2868 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
2871 struct iwl_priv
*priv
= hw
->priv
;
2873 struct iwl_station_priv
*sta_priv
= (void *) sta
->drv_priv
;
2875 IWL_DEBUG_HT(priv
, "A-MPDU action on addr %pM tid %d\n",
2878 if (!(priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
))
2881 mutex_lock(&priv
->mutex
);
2884 case IEEE80211_AMPDU_RX_START
:
2885 IWL_DEBUG_HT(priv
, "start Rx\n");
2886 ret
= iwl_sta_rx_agg_start(priv
, sta
, tid
, *ssn
);
2888 case IEEE80211_AMPDU_RX_STOP
:
2889 IWL_DEBUG_HT(priv
, "stop Rx\n");
2890 ret
= iwl_sta_rx_agg_stop(priv
, sta
, tid
);
2891 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2894 case IEEE80211_AMPDU_TX_START
:
2895 IWL_DEBUG_HT(priv
, "start Tx\n");
2896 ret
= iwlagn_tx_agg_start(priv
, vif
, sta
, tid
, ssn
);
2898 priv
->agg_tids_count
++;
2899 IWL_DEBUG_HT(priv
, "priv->agg_tids_count = %u\n",
2900 priv
->agg_tids_count
);
2903 case IEEE80211_AMPDU_TX_STOP
:
2904 IWL_DEBUG_HT(priv
, "stop Tx\n");
2905 ret
= iwlagn_tx_agg_stop(priv
, vif
, sta
, tid
);
2906 if ((ret
== 0) && (priv
->agg_tids_count
> 0)) {
2907 priv
->agg_tids_count
--;
2908 IWL_DEBUG_HT(priv
, "priv->agg_tids_count = %u\n",
2909 priv
->agg_tids_count
);
2911 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2913 if (priv
->cfg
->ht_params
&&
2914 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
2916 * switch off RTS/CTS if it was previously enabled
2918 sta_priv
->lq_sta
.lq
.general_params
.flags
&=
2919 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
2920 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
2921 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
2924 case IEEE80211_AMPDU_TX_OPERATIONAL
:
2925 buf_size
= min_t(int, buf_size
, LINK_QUAL_AGG_FRAME_LIMIT_DEF
);
2927 trans_txq_agg_setup(&priv
->trans
, iwl_sta_id(sta
), tid
,
2931 * If the limit is 0, then it wasn't initialised yet,
2932 * use the default. We can do that since we take the
2933 * minimum below, and we don't want to go above our
2934 * default due to hardware restrictions.
2936 if (sta_priv
->max_agg_bufsize
== 0)
2937 sta_priv
->max_agg_bufsize
=
2938 LINK_QUAL_AGG_FRAME_LIMIT_DEF
;
2941 * Even though in theory the peer could have different
2942 * aggregation reorder buffer sizes for different sessions,
2943 * our ucode doesn't allow for that and has a global limit
2944 * for each station. Therefore, use the minimum of all the
2945 * aggregation sessions and our default value.
2947 sta_priv
->max_agg_bufsize
=
2948 min(sta_priv
->max_agg_bufsize
, buf_size
);
2950 if (priv
->cfg
->ht_params
&&
2951 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
2953 * switch to RTS/CTS if it is the prefer protection
2954 * method for HT traffic
2957 sta_priv
->lq_sta
.lq
.general_params
.flags
|=
2958 LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
2961 sta_priv
->lq_sta
.lq
.agg_params
.agg_frame_cnt_limit
=
2962 sta_priv
->max_agg_bufsize
;
2964 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
2965 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
2967 IWL_INFO(priv
, "Tx aggregation enabled on ra = %pM tid = %d\n",
2972 mutex_unlock(&priv
->mutex
);
2977 static int iwlagn_mac_sta_add(struct ieee80211_hw
*hw
,
2978 struct ieee80211_vif
*vif
,
2979 struct ieee80211_sta
*sta
)
2981 struct iwl_priv
*priv
= hw
->priv
;
2982 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
2983 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2984 bool is_ap
= vif
->type
== NL80211_IFTYPE_STATION
;
2988 IWL_DEBUG_INFO(priv
, "received request to add station %pM\n",
2990 mutex_lock(&priv
->mutex
);
2991 IWL_DEBUG_INFO(priv
, "proceeding to add station %pM\n",
2993 sta_priv
->common
.sta_id
= IWL_INVALID_STATION
;
2995 atomic_set(&sta_priv
->pending_frames
, 0);
2996 if (vif
->type
== NL80211_IFTYPE_AP
)
2997 sta_priv
->client
= true;
2999 ret
= iwl_add_station_common(priv
, vif_priv
->ctx
, sta
->addr
,
3000 is_ap
, sta
, &sta_id
);
3002 IWL_ERR(priv
, "Unable to add station %pM (%d)\n",
3004 /* Should we return success if return code is EEXIST ? */
3005 mutex_unlock(&priv
->mutex
);
3009 sta_priv
->common
.sta_id
= sta_id
;
3011 /* Initialize rate scaling */
3012 IWL_DEBUG_INFO(priv
, "Initializing rate scaling for station %pM\n",
3014 iwl_rs_rate_init(priv
, sta
, sta_id
);
3015 mutex_unlock(&priv
->mutex
);
3020 static void iwlagn_mac_channel_switch(struct ieee80211_hw
*hw
,
3021 struct ieee80211_channel_switch
*ch_switch
)
3023 struct iwl_priv
*priv
= hw
->priv
;
3024 const struct iwl_channel_info
*ch_info
;
3025 struct ieee80211_conf
*conf
= &hw
->conf
;
3026 struct ieee80211_channel
*channel
= ch_switch
->channel
;
3027 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
3030 * When we add support for multiple interfaces, we need to
3031 * revisit this. The channel switch command in the device
3032 * only affects the BSS context, but what does that really
3033 * mean? And what if we get a CSA on the second interface?
3034 * This needs a lot of work.
3036 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
3039 IWL_DEBUG_MAC80211(priv
, "enter\n");
3041 mutex_lock(&priv
->mutex
);
3043 if (iwl_is_rfkill(priv
))
3046 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
3047 test_bit(STATUS_SCANNING
, &priv
->status
) ||
3048 test_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
))
3051 if (!iwl_is_associated_ctx(ctx
))
3054 if (!priv
->cfg
->lib
->set_channel_switch
)
3057 ch
= channel
->hw_value
;
3058 if (le16_to_cpu(ctx
->active
.channel
) == ch
)
3061 ch_info
= iwl_get_channel_info(priv
, channel
->band
, ch
);
3062 if (!is_channel_valid(ch_info
)) {
3063 IWL_DEBUG_MAC80211(priv
, "invalid channel\n");
3067 spin_lock_irq(&priv
->lock
);
3069 priv
->current_ht_config
.smps
= conf
->smps_mode
;
3071 /* Configure HT40 channels */
3072 ctx
->ht
.enabled
= conf_is_ht(conf
);
3073 if (ctx
->ht
.enabled
) {
3074 if (conf_is_ht40_minus(conf
)) {
3075 ctx
->ht
.extension_chan_offset
=
3076 IEEE80211_HT_PARAM_CHA_SEC_BELOW
;
3077 ctx
->ht
.is_40mhz
= true;
3078 } else if (conf_is_ht40_plus(conf
)) {
3079 ctx
->ht
.extension_chan_offset
=
3080 IEEE80211_HT_PARAM_CHA_SEC_ABOVE
;
3081 ctx
->ht
.is_40mhz
= true;
3083 ctx
->ht
.extension_chan_offset
=
3084 IEEE80211_HT_PARAM_CHA_SEC_NONE
;
3085 ctx
->ht
.is_40mhz
= false;
3088 ctx
->ht
.is_40mhz
= false;
3090 if ((le16_to_cpu(ctx
->staging
.channel
) != ch
))
3091 ctx
->staging
.flags
= 0;
3093 iwl_set_rxon_channel(priv
, channel
, ctx
);
3094 iwl_set_rxon_ht(priv
, ht_conf
);
3095 iwl_set_flags_for_band(priv
, ctx
, channel
->band
, ctx
->vif
);
3097 spin_unlock_irq(&priv
->lock
);
3101 * at this point, staging_rxon has the
3102 * configuration for channel switch
3104 set_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
);
3105 priv
->switch_channel
= cpu_to_le16(ch
);
3106 if (priv
->cfg
->lib
->set_channel_switch(priv
, ch_switch
)) {
3107 clear_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
);
3108 priv
->switch_channel
= 0;
3109 ieee80211_chswitch_done(ctx
->vif
, false);
3113 mutex_unlock(&priv
->mutex
);
3114 IWL_DEBUG_MAC80211(priv
, "leave\n");
3117 static void iwlagn_configure_filter(struct ieee80211_hw
*hw
,
3118 unsigned int changed_flags
,
3119 unsigned int *total_flags
,
3122 struct iwl_priv
*priv
= hw
->priv
;
3123 __le32 filter_or
= 0, filter_nand
= 0;
3124 struct iwl_rxon_context
*ctx
;
3126 #define CHK(test, flag) do { \
3127 if (*total_flags & (test)) \
3128 filter_or |= (flag); \
3130 filter_nand |= (flag); \
3133 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
3134 changed_flags
, *total_flags
);
3136 CHK(FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
, RXON_FILTER_PROMISC_MSK
);
3137 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
3138 CHK(FIF_CONTROL
, RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_PROMISC_MSK
);
3139 CHK(FIF_BCN_PRBRESP_PROMISC
, RXON_FILTER_BCON_AWARE_MSK
);
3143 mutex_lock(&priv
->mutex
);
3145 for_each_context(priv
, ctx
) {
3146 ctx
->staging
.filter_flags
&= ~filter_nand
;
3147 ctx
->staging
.filter_flags
|= filter_or
;
3150 * Not committing directly because hardware can perform a scan,
3151 * but we'll eventually commit the filter flags change anyway.
3155 mutex_unlock(&priv
->mutex
);
3158 * Receiving all multicast frames is always enabled by the
3159 * default flags setup in iwl_connection_init_rx_config()
3160 * since we currently do not support programming multicast
3161 * filters into the device.
3163 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
3164 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
3167 static void iwlagn_mac_flush(struct ieee80211_hw
*hw
, bool drop
)
3169 struct iwl_priv
*priv
= hw
->priv
;
3171 mutex_lock(&priv
->mutex
);
3172 IWL_DEBUG_MAC80211(priv
, "enter\n");
3174 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
3175 IWL_DEBUG_TX(priv
, "Aborting flush due to device shutdown\n");
3178 if (iwl_is_rfkill(priv
)) {
3179 IWL_DEBUG_TX(priv
, "Aborting flush due to RF Kill\n");
3184 * mac80211 will not push any more frames for transmit
3185 * until the flush is completed
3188 IWL_DEBUG_MAC80211(priv
, "send flush command\n");
3189 if (iwlagn_txfifo_flush(priv
, IWL_DROP_ALL
)) {
3190 IWL_ERR(priv
, "flush request fail\n");
3194 IWL_DEBUG_MAC80211(priv
, "wait transmit/flush all frames\n");
3195 iwlagn_wait_tx_queue_empty(priv
);
3197 mutex_unlock(&priv
->mutex
);
3198 IWL_DEBUG_MAC80211(priv
, "leave\n");
3201 static void iwlagn_disable_roc(struct iwl_priv
*priv
)
3203 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
3204 struct ieee80211_channel
*chan
= ACCESS_ONCE(priv
->hw
->conf
.channel
);
3206 lockdep_assert_held(&priv
->mutex
);
3208 if (!ctx
->is_active
)
3211 ctx
->staging
.dev_type
= RXON_DEV_TYPE_2STA
;
3212 ctx
->staging
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
3213 iwl_set_rxon_channel(priv
, chan
, ctx
);
3214 iwl_set_flags_for_band(priv
, ctx
, chan
->band
, NULL
);
3216 priv
->hw_roc_channel
= NULL
;
3218 iwlagn_commit_rxon(priv
, ctx
);
3220 ctx
->is_active
= false;
3223 static void iwlagn_bg_roc_done(struct work_struct
*work
)
3225 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
3228 mutex_lock(&priv
->mutex
);
3229 ieee80211_remain_on_channel_expired(priv
->hw
);
3230 iwlagn_disable_roc(priv
);
3231 mutex_unlock(&priv
->mutex
);
3234 static int iwl_mac_remain_on_channel(struct ieee80211_hw
*hw
,
3235 struct ieee80211_channel
*channel
,
3236 enum nl80211_channel_type channel_type
,
3239 struct iwl_priv
*priv
= hw
->priv
;
3242 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
3245 if (!(priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
&
3246 BIT(NL80211_IFTYPE_P2P_CLIENT
)))
3249 mutex_lock(&priv
->mutex
);
3251 if (priv
->contexts
[IWL_RXON_CTX_PAN
].is_active
||
3252 test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
3257 priv
->contexts
[IWL_RXON_CTX_PAN
].is_active
= true;
3258 priv
->hw_roc_channel
= channel
;
3259 priv
->hw_roc_chantype
= channel_type
;
3260 priv
->hw_roc_duration
= DIV_ROUND_UP(duration
* 1000, 1024);
3261 iwlagn_commit_rxon(priv
, &priv
->contexts
[IWL_RXON_CTX_PAN
]);
3262 queue_delayed_work(priv
->workqueue
, &priv
->hw_roc_work
,
3263 msecs_to_jiffies(duration
+ 20));
3265 msleep(IWL_MIN_SLOT_TIME
); /* TU is almost ms */
3266 ieee80211_ready_on_channel(priv
->hw
);
3269 mutex_unlock(&priv
->mutex
);
3274 static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw
*hw
)
3276 struct iwl_priv
*priv
= hw
->priv
;
3278 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
3281 cancel_delayed_work_sync(&priv
->hw_roc_work
);
3283 mutex_lock(&priv
->mutex
);
3284 iwlagn_disable_roc(priv
);
3285 mutex_unlock(&priv
->mutex
);
3290 /*****************************************************************************
3292 * driver setup and teardown
3294 *****************************************************************************/
3296 static void iwl_setup_deferred_work(struct iwl_priv
*priv
)
3298 priv
->workqueue
= create_singlethread_workqueue(DRV_NAME
);
3300 init_waitqueue_head(&priv
->wait_command_queue
);
3302 INIT_WORK(&priv
->restart
, iwl_bg_restart
);
3303 INIT_WORK(&priv
->beacon_update
, iwl_bg_beacon_update
);
3304 INIT_WORK(&priv
->run_time_calib_work
, iwl_bg_run_time_calib_work
);
3305 INIT_WORK(&priv
->tx_flush
, iwl_bg_tx_flush
);
3306 INIT_WORK(&priv
->bt_full_concurrency
, iwl_bg_bt_full_concurrency
);
3307 INIT_WORK(&priv
->bt_runtime_config
, iwl_bg_bt_runtime_config
);
3308 INIT_DELAYED_WORK(&priv
->hw_roc_work
, iwlagn_bg_roc_done
);
3310 iwl_setup_scan_deferred_work(priv
);
3312 if (priv
->cfg
->lib
->bt_setup_deferred_work
)
3313 priv
->cfg
->lib
->bt_setup_deferred_work(priv
);
3315 init_timer(&priv
->statistics_periodic
);
3316 priv
->statistics_periodic
.data
= (unsigned long)priv
;
3317 priv
->statistics_periodic
.function
= iwl_bg_statistics_periodic
;
3319 init_timer(&priv
->ucode_trace
);
3320 priv
->ucode_trace
.data
= (unsigned long)priv
;
3321 priv
->ucode_trace
.function
= iwl_bg_ucode_trace
;
3323 init_timer(&priv
->watchdog
);
3324 priv
->watchdog
.data
= (unsigned long)priv
;
3325 priv
->watchdog
.function
= iwl_bg_watchdog
;
3328 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
)
3330 if (priv
->cfg
->lib
->cancel_deferred_work
)
3331 priv
->cfg
->lib
->cancel_deferred_work(priv
);
3333 cancel_work_sync(&priv
->run_time_calib_work
);
3334 cancel_work_sync(&priv
->beacon_update
);
3336 iwl_cancel_scan_deferred_work(priv
);
3338 cancel_work_sync(&priv
->bt_full_concurrency
);
3339 cancel_work_sync(&priv
->bt_runtime_config
);
3341 del_timer_sync(&priv
->statistics_periodic
);
3342 del_timer_sync(&priv
->ucode_trace
);
3345 static void iwl_init_hw_rates(struct iwl_priv
*priv
,
3346 struct ieee80211_rate
*rates
)
3350 for (i
= 0; i
< IWL_RATE_COUNT_LEGACY
; i
++) {
3351 rates
[i
].bitrate
= iwl_rates
[i
].ieee
* 5;
3352 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
3353 rates
[i
].hw_value_short
= i
;
3355 if ((i
>= IWL_FIRST_CCK_RATE
) && (i
<= IWL_LAST_CCK_RATE
)) {
3357 * If CCK != 1M then set short preamble rate flag.
3360 (iwl_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
3361 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
3366 static int iwl_init_drv(struct iwl_priv
*priv
)
3370 spin_lock_init(&priv
->sta_lock
);
3371 spin_lock_init(&priv
->hcmd_lock
);
3373 mutex_init(&priv
->mutex
);
3375 priv
->ieee_channels
= NULL
;
3376 priv
->ieee_rates
= NULL
;
3377 priv
->band
= IEEE80211_BAND_2GHZ
;
3379 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
3380 priv
->current_ht_config
.smps
= IEEE80211_SMPS_STATIC
;
3381 priv
->missed_beacon_threshold
= IWL_MISSED_BEACON_THRESHOLD_DEF
;
3382 priv
->agg_tids_count
= 0;
3384 /* initialize force reset */
3385 priv
->force_reset
[IWL_RF_RESET
].reset_duration
=
3386 IWL_DELAY_NEXT_FORCE_RF_RESET
;
3387 priv
->force_reset
[IWL_FW_RESET
].reset_duration
=
3388 IWL_DELAY_NEXT_FORCE_FW_RELOAD
;
3390 priv
->rx_statistics_jiffies
= jiffies
;
3392 /* Choose which receivers/antennas to use */
3393 iwlagn_set_rxon_chain(priv
, &priv
->contexts
[IWL_RXON_CTX_BSS
]);
3395 iwl_init_scan_params(priv
);
3398 if (priv
->cfg
->bt_params
&&
3399 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
3400 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
3401 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
3402 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
3403 priv
->bt_on_thresh
= BT_ON_THRESHOLD_DEF
;
3404 priv
->bt_duration
= BT_DURATION_LIMIT_DEF
;
3405 priv
->dynamic_frag_thresh
= BT_FRAG_THRESHOLD_DEF
;
3408 ret
= iwl_init_channel_map(priv
);
3410 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
3414 ret
= iwlcore_init_geos(priv
);
3416 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
3417 goto err_free_channel_map
;
3419 iwl_init_hw_rates(priv
, priv
->ieee_rates
);
3423 err_free_channel_map
:
3424 iwl_free_channel_map(priv
);
3429 static void iwl_uninit_drv(struct iwl_priv
*priv
)
3431 iwl_calib_free_results(priv
);
3432 iwlcore_free_geos(priv
);
3433 iwl_free_channel_map(priv
);
3434 kfree(priv
->scan_cmd
);
3435 kfree(priv
->beacon_cmd
);
3436 #ifdef CONFIG_IWLWIFI_DEBUGFS
3437 kfree(priv
->wowlan_sram
);
3441 static void iwl_mac_rssi_callback(struct ieee80211_hw
*hw
,
3442 enum ieee80211_rssi_event rssi_event
)
3444 struct iwl_priv
*priv
= hw
->priv
;
3446 mutex_lock(&priv
->mutex
);
3448 if (priv
->cfg
->bt_params
&&
3449 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
3450 if (rssi_event
== RSSI_EVENT_LOW
)
3451 priv
->bt_enable_pspoll
= true;
3452 else if (rssi_event
== RSSI_EVENT_HIGH
)
3453 priv
->bt_enable_pspoll
= false;
3455 iwlagn_send_advance_bt_config(priv
);
3457 IWL_DEBUG_MAC80211(priv
, "Advanced BT coex disabled,"
3458 "ignoring RSSI callback\n");
3461 mutex_unlock(&priv
->mutex
);
3464 struct ieee80211_ops iwlagn_hw_ops
= {
3465 .tx
= iwlagn_mac_tx
,
3466 .start
= iwlagn_mac_start
,
3467 .stop
= iwlagn_mac_stop
,
3469 .suspend
= iwlagn_mac_suspend
,
3470 .resume
= iwlagn_mac_resume
,
3472 .add_interface
= iwl_mac_add_interface
,
3473 .remove_interface
= iwl_mac_remove_interface
,
3474 .change_interface
= iwl_mac_change_interface
,
3475 .config
= iwlagn_mac_config
,
3476 .configure_filter
= iwlagn_configure_filter
,
3477 .set_key
= iwlagn_mac_set_key
,
3478 .update_tkip_key
= iwlagn_mac_update_tkip_key
,
3479 .set_rekey_data
= iwlagn_mac_set_rekey_data
,
3480 .conf_tx
= iwl_mac_conf_tx
,
3481 .bss_info_changed
= iwlagn_bss_info_changed
,
3482 .ampdu_action
= iwlagn_mac_ampdu_action
,
3483 .hw_scan
= iwl_mac_hw_scan
,
3484 .sta_notify
= iwlagn_mac_sta_notify
,
3485 .sta_add
= iwlagn_mac_sta_add
,
3486 .sta_remove
= iwl_mac_sta_remove
,
3487 .channel_switch
= iwlagn_mac_channel_switch
,
3488 .flush
= iwlagn_mac_flush
,
3489 .tx_last_beacon
= iwl_mac_tx_last_beacon
,
3490 .remain_on_channel
= iwl_mac_remain_on_channel
,
3491 .cancel_remain_on_channel
= iwl_mac_cancel_remain_on_channel
,
3492 .offchannel_tx
= iwl_mac_offchannel_tx
,
3493 .offchannel_tx_cancel_wait
= iwl_mac_offchannel_tx_cancel_wait
,
3494 .rssi_callback
= iwl_mac_rssi_callback
,
3495 CFG80211_TESTMODE_CMD(iwl_testmode_cmd
)
3496 CFG80211_TESTMODE_DUMP(iwl_testmode_dump
)
3499 static u32
iwl_hw_detect(struct iwl_priv
*priv
)
3501 return iwl_read32(priv
, CSR_HW_REV
);
3504 static int iwl_set_hw_params(struct iwl_priv
*priv
)
3506 priv
->hw_params
.max_rxq_size
= RX_QUEUE_SIZE
;
3507 priv
->hw_params
.max_rxq_log
= RX_QUEUE_SIZE_LOG
;
3508 if (iwlagn_mod_params
.amsdu_size_8K
)
3509 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_8K
);
3511 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_4K
);
3513 priv
->hw_params
.max_beacon_itrvl
= IWL_MAX_UCODE_BEACON_INTERVAL
;
3515 if (iwlagn_mod_params
.disable_11n
)
3516 priv
->cfg
->sku
&= ~EEPROM_SKU_CAP_11N_ENABLE
;
3518 /* Device-specific setup */
3519 return priv
->cfg
->lib
->set_hw_params(priv
);
3522 static const u8 iwlagn_bss_ac_to_fifo
[] = {
3529 static const u8 iwlagn_bss_ac_to_queue
[] = {
3533 static const u8 iwlagn_pan_ac_to_fifo
[] = {
3534 IWL_TX_FIFO_VO_IPAN
,
3535 IWL_TX_FIFO_VI_IPAN
,
3536 IWL_TX_FIFO_BE_IPAN
,
3537 IWL_TX_FIFO_BK_IPAN
,
3540 static const u8 iwlagn_pan_ac_to_queue
[] = {
3544 /* This function both allocates and initializes hw and priv. */
3545 static struct ieee80211_hw
*iwl_alloc_all(struct iwl_cfg
*cfg
)
3547 struct iwl_priv
*priv
;
3548 /* mac80211 allocates memory for this device instance, including
3549 * space for this driver's private structure */
3550 struct ieee80211_hw
*hw
;
3552 hw
= ieee80211_alloc_hw(sizeof(struct iwl_priv
), &iwlagn_hw_ops
);
3554 pr_err("%s: Can not allocate network device\n",
3566 static void iwl_init_context(struct iwl_priv
*priv
)
3571 * The default context is always valid,
3572 * more may be discovered when firmware
3575 priv
->valid_contexts
= BIT(IWL_RXON_CTX_BSS
);
3577 for (i
= 0; i
< NUM_IWL_RXON_CTX
; i
++)
3578 priv
->contexts
[i
].ctxid
= i
;
3580 priv
->contexts
[IWL_RXON_CTX_BSS
].always_active
= true;
3581 priv
->contexts
[IWL_RXON_CTX_BSS
].is_active
= true;
3582 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_cmd
= REPLY_RXON
;
3583 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_timing_cmd
= REPLY_RXON_TIMING
;
3584 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_assoc_cmd
= REPLY_RXON_ASSOC
;
3585 priv
->contexts
[IWL_RXON_CTX_BSS
].qos_cmd
= REPLY_QOS_PARAM
;
3586 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_sta_id
= IWL_AP_ID
;
3587 priv
->contexts
[IWL_RXON_CTX_BSS
].wep_key_cmd
= REPLY_WEPKEY
;
3588 priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_fifo
= iwlagn_bss_ac_to_fifo
;
3589 priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_queue
= iwlagn_bss_ac_to_queue
;
3590 priv
->contexts
[IWL_RXON_CTX_BSS
].exclusive_interface_modes
=
3591 BIT(NL80211_IFTYPE_ADHOC
);
3592 priv
->contexts
[IWL_RXON_CTX_BSS
].interface_modes
=
3593 BIT(NL80211_IFTYPE_STATION
);
3594 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_devtype
= RXON_DEV_TYPE_AP
;
3595 priv
->contexts
[IWL_RXON_CTX_BSS
].ibss_devtype
= RXON_DEV_TYPE_IBSS
;
3596 priv
->contexts
[IWL_RXON_CTX_BSS
].station_devtype
= RXON_DEV_TYPE_ESS
;
3597 priv
->contexts
[IWL_RXON_CTX_BSS
].unused_devtype
= RXON_DEV_TYPE_ESS
;
3599 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_cmd
= REPLY_WIPAN_RXON
;
3600 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_timing_cmd
=
3601 REPLY_WIPAN_RXON_TIMING
;
3602 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_assoc_cmd
=
3603 REPLY_WIPAN_RXON_ASSOC
;
3604 priv
->contexts
[IWL_RXON_CTX_PAN
].qos_cmd
= REPLY_WIPAN_QOS_PARAM
;
3605 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_sta_id
= IWL_AP_ID_PAN
;
3606 priv
->contexts
[IWL_RXON_CTX_PAN
].wep_key_cmd
= REPLY_WIPAN_WEPKEY
;
3607 priv
->contexts
[IWL_RXON_CTX_PAN
].bcast_sta_id
= IWLAGN_PAN_BCAST_ID
;
3608 priv
->contexts
[IWL_RXON_CTX_PAN
].station_flags
= STA_FLG_PAN_STATION
;
3609 priv
->contexts
[IWL_RXON_CTX_PAN
].ac_to_fifo
= iwlagn_pan_ac_to_fifo
;
3610 priv
->contexts
[IWL_RXON_CTX_PAN
].ac_to_queue
= iwlagn_pan_ac_to_queue
;
3611 priv
->contexts
[IWL_RXON_CTX_PAN
].mcast_queue
= IWL_IPAN_MCAST_QUEUE
;
3612 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
=
3613 BIT(NL80211_IFTYPE_STATION
) | BIT(NL80211_IFTYPE_AP
);
3614 #ifdef CONFIG_IWL_P2P
3615 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
|=
3616 BIT(NL80211_IFTYPE_P2P_CLIENT
) | BIT(NL80211_IFTYPE_P2P_GO
);
3618 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_devtype
= RXON_DEV_TYPE_CP
;
3619 priv
->contexts
[IWL_RXON_CTX_PAN
].station_devtype
= RXON_DEV_TYPE_2STA
;
3620 priv
->contexts
[IWL_RXON_CTX_PAN
].unused_devtype
= RXON_DEV_TYPE_P2P
;
3622 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
3625 int iwl_probe(struct iwl_bus
*bus
, struct iwl_cfg
*cfg
)
3628 struct iwl_priv
*priv
;
3629 struct ieee80211_hw
*hw
;
3633 /************************
3634 * 1. Allocating HW data
3635 ************************/
3636 hw
= iwl_alloc_all(cfg
);
3644 bus_set_drv_data(priv
->bus
, priv
);
3646 /* At this point both hw and priv are allocated. */
3648 SET_IEEE80211_DEV(hw
, priv
->bus
->dev
);
3650 IWL_DEBUG_INFO(priv
, "*** LOAD DRIVER ***\n");
3652 priv
->inta_mask
= CSR_INI_SET_MASK
;
3654 /* is antenna coupling more than 35dB ? */
3655 priv
->bt_ant_couple_ok
=
3656 (iwlagn_ant_coupling
> IWL_BT_ANTENNA_COUPLING_THRESHOLD
) ?
3659 /* enable/disable bt channel inhibition */
3660 priv
->bt_ch_announce
= iwlagn_bt_ch_announce
;
3661 IWL_DEBUG_INFO(priv
, "BT channel inhibition is %s\n",
3662 (priv
->bt_ch_announce
) ? "On" : "Off");
3664 if (iwl_alloc_traffic_mem(priv
))
3665 IWL_ERR(priv
, "Not enough memory to generate traffic log\n");
3667 /* these spin locks will be used in apm_ops.init and EEPROM access
3668 * we should init now
3670 spin_lock_init(&priv
->reg_lock
);
3671 spin_lock_init(&priv
->lock
);
3674 * stop and reset the on-board processor just in case it is in a
3675 * strange state ... like being left stranded by a primary kernel
3676 * and this is now the kdump kernel trying to start up
3678 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
3680 /***********************
3681 * 3. Read REV register
3682 ***********************/
3683 hw_rev
= iwl_hw_detect(priv
);
3684 IWL_INFO(priv
, "Detected %s, REV=0x%X\n",
3685 priv
->cfg
->name
, hw_rev
);
3687 err
= iwl_trans_register(&priv
->trans
, priv
);
3689 goto out_free_traffic_mem
;
3691 if (trans_prepare_card_hw(&priv
->trans
)) {
3693 IWL_WARN(priv
, "Failed, HW not ready\n");
3694 goto out_free_trans
;
3700 /* Read the EEPROM */
3701 err
= iwl_eeprom_init(priv
, hw_rev
);
3703 IWL_ERR(priv
, "Unable to init EEPROM\n");
3704 goto out_free_trans
;
3706 err
= iwl_eeprom_check_version(priv
);
3708 goto out_free_eeprom
;
3710 err
= iwl_eeprom_check_sku(priv
);
3712 goto out_free_eeprom
;
3714 /* extract MAC Address */
3715 iwl_eeprom_get_mac(priv
, priv
->addresses
[0].addr
);
3716 IWL_DEBUG_INFO(priv
, "MAC address: %pM\n", priv
->addresses
[0].addr
);
3717 priv
->hw
->wiphy
->addresses
= priv
->addresses
;
3718 priv
->hw
->wiphy
->n_addresses
= 1;
3719 num_mac
= iwl_eeprom_query16(priv
, EEPROM_NUM_MAC_ADDRESS
);
3721 memcpy(priv
->addresses
[1].addr
, priv
->addresses
[0].addr
,
3723 priv
->addresses
[1].addr
[5]++;
3724 priv
->hw
->wiphy
->n_addresses
++;
3727 /* initialize all valid contexts */
3728 iwl_init_context(priv
);
3730 /************************
3731 * 5. Setup HW constants
3732 ************************/
3733 if (iwl_set_hw_params(priv
)) {
3735 IWL_ERR(priv
, "failed to set hw parameters\n");
3736 goto out_free_eeprom
;
3739 /*******************
3741 *******************/
3743 err
= iwl_init_drv(priv
);
3745 goto out_free_eeprom
;
3746 /* At this point both hw and priv are initialized. */
3748 /********************
3750 ********************/
3751 iwl_setup_deferred_work(priv
);
3752 iwl_setup_rx_handlers(priv
);
3753 iwl_testmode_init(priv
);
3755 /*********************************************
3756 * 8. Enable interrupts
3757 *********************************************/
3759 iwl_enable_rfkill_int(priv
);
3761 /* If platform's RF_KILL switch is NOT set to KILL */
3762 if (iwl_read32(priv
, CSR_GP_CNTRL
) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
3763 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3765 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3767 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
3768 test_bit(STATUS_RF_KILL_HW
, &priv
->status
));
3770 iwl_power_initialize(priv
);
3771 iwl_tt_initialize(priv
);
3773 init_completion(&priv
->firmware_loading_complete
);
3775 err
= iwl_request_firmware(priv
, true);
3777 goto out_destroy_workqueue
;
3781 out_destroy_workqueue
:
3782 destroy_workqueue(priv
->workqueue
);
3783 priv
->workqueue
= NULL
;
3784 iwl_uninit_drv(priv
);
3786 iwl_eeprom_free(priv
);
3788 trans_free(&priv
->trans
);
3789 out_free_traffic_mem
:
3790 iwl_free_traffic_mem(priv
);
3791 ieee80211_free_hw(priv
->hw
);
3796 void __devexit
iwl_remove(struct iwl_priv
* priv
)
3798 unsigned long flags
;
3800 wait_for_completion(&priv
->firmware_loading_complete
);
3802 IWL_DEBUG_INFO(priv
, "*** UNLOAD DRIVER ***\n");
3804 iwl_dbgfs_unregister(priv
);
3805 sysfs_remove_group(&priv
->bus
->dev
->kobj
,
3806 &iwl_attribute_group
);
3808 /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
3809 * to be called and iwl_down since we are removing the device
3810 * we need to set STATUS_EXIT_PENDING bit.
3812 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3814 iwl_testmode_cleanup(priv
);
3815 iwl_leds_exit(priv
);
3817 if (priv
->mac80211_registered
) {
3818 ieee80211_unregister_hw(priv
->hw
);
3819 priv
->mac80211_registered
= 0;
3822 /* Reset to low power before unloading driver. */
3827 /* make sure we flush any pending irq or
3828 * tasklet for the driver
3830 spin_lock_irqsave(&priv
->lock
, flags
);
3831 iwl_disable_interrupts(priv
);
3832 spin_unlock_irqrestore(&priv
->lock
, flags
);
3834 trans_sync_irq(&priv
->trans
);
3836 iwl_dealloc_ucode(priv
);
3838 trans_rx_free(&priv
->trans
);
3839 trans_tx_free(&priv
->trans
);
3841 iwl_eeprom_free(priv
);
3843 /*netif_stop_queue(dev); */
3844 flush_workqueue(priv
->workqueue
);
3846 /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
3847 * priv->workqueue... so we can't take down the workqueue
3849 destroy_workqueue(priv
->workqueue
);
3850 priv
->workqueue
= NULL
;
3851 iwl_free_traffic_mem(priv
);
3853 trans_free(&priv
->trans
);
3855 bus_set_drv_data(priv
->bus
, NULL
);
3857 iwl_uninit_drv(priv
);
3859 dev_kfree_skb(priv
->beacon_skb
);
3861 ieee80211_free_hw(priv
->hw
);
3865 /*****************************************************************************
3867 * driver and module entry point
3869 *****************************************************************************/
3870 static int __init
iwl_init(void)
3874 pr_info(DRV_DESCRIPTION
", " DRV_VERSION
"\n");
3875 pr_info(DRV_COPYRIGHT
"\n");
3877 ret
= iwlagn_rate_control_register();
3879 pr_err("Unable to register rate control algorithm: %d\n", ret
);
3883 ret
= iwl_pci_register_driver();
3886 goto error_register
;
3890 iwlagn_rate_control_unregister();
3894 static void __exit
iwl_exit(void)
3896 iwl_pci_unregister_driver();
3897 iwlagn_rate_control_unregister();
3900 module_exit(iwl_exit
);
3901 module_init(iwl_init
);
3903 #ifdef CONFIG_IWLWIFI_DEBUG
3904 module_param_named(debug
, iwl_debug_level
, uint
, S_IRUGO
| S_IWUSR
);
3905 MODULE_PARM_DESC(debug
, "debug output mask");
3908 module_param_named(swcrypto
, iwlagn_mod_params
.sw_crypto
, int, S_IRUGO
);
3909 MODULE_PARM_DESC(swcrypto
, "using crypto in software (default 0 [hardware])");
3910 module_param_named(queues_num
, iwlagn_mod_params
.num_of_queues
, int, S_IRUGO
);
3911 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
3912 module_param_named(11n_disable
, iwlagn_mod_params
.disable_11n
, int, S_IRUGO
);
3913 MODULE_PARM_DESC(11n_disable
, "disable 11n functionality");
3914 module_param_named(amsdu_size_8K
, iwlagn_mod_params
.amsdu_size_8K
,
3916 MODULE_PARM_DESC(amsdu_size_8K
, "enable 8K amsdu size");
3917 module_param_named(fw_restart
, iwlagn_mod_params
.restart_fw
, int, S_IRUGO
);
3918 MODULE_PARM_DESC(fw_restart
, "restart firmware in case of error");
3920 module_param_named(ucode_alternative
, iwlagn_wanted_ucode_alternative
, int,
3922 MODULE_PARM_DESC(ucode_alternative
,
3923 "specify ucode alternative to use from ucode file");
3925 module_param_named(antenna_coupling
, iwlagn_ant_coupling
, int, S_IRUGO
);
3926 MODULE_PARM_DESC(antenna_coupling
,
3927 "specify antenna coupling in dB (defualt: 0 dB)");
3929 module_param_named(bt_ch_inhibition
, iwlagn_bt_ch_announce
, bool, S_IRUGO
);
3930 MODULE_PARM_DESC(bt_ch_inhibition
,
3931 "Disable BT channel inhibition (default: enable)");
3933 module_param_named(plcp_check
, iwlagn_mod_params
.plcp_check
, bool, S_IRUGO
);
3934 MODULE_PARM_DESC(plcp_check
, "Check plcp health (default: 1 [enabled])");
3936 module_param_named(ack_check
, iwlagn_mod_params
.ack_check
, bool, S_IRUGO
);
3937 MODULE_PARM_DESC(ack_check
, "Check ack health (default: 0 [disabled])");
3939 module_param_named(wd_disable
, iwlagn_mod_params
.wd_disable
, bool, S_IRUGO
);
3940 MODULE_PARM_DESC(wd_disable
,
3941 "Disable stuck queue watchdog timer (default: 0 [enabled])");
3944 * set bt_coex_active to true, uCode will do kill/defer
3945 * every time the priority line is asserted (BT is sending signals on the
3946 * priority line in the PCIx).
3947 * set bt_coex_active to false, uCode will ignore the BT activity and
3948 * perform the normal operation
3950 * User might experience transmit issue on some platform due to WiFi/BT
3951 * co-exist problem. The possible behaviors are:
3952 * Able to scan and finding all the available AP
3953 * Not able to associate with any AP
3954 * On those platforms, WiFi communication can be restored by set
3955 * "bt_coex_active" module parameter to "false"
3957 * default: bt_coex_active = true (BT_COEX_ENABLE)
3959 module_param_named(bt_coex_active
, iwlagn_mod_params
.bt_coex_active
,
3961 MODULE_PARM_DESC(bt_coex_active
, "enable wifi/bt co-exist (default: enable)");
3963 module_param_named(led_mode
, iwlagn_mod_params
.led_mode
, int, S_IRUGO
);
3964 MODULE_PARM_DESC(led_mode
, "0=system default, "
3965 "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)");
3967 module_param_named(power_save
, iwlagn_mod_params
.power_save
,
3969 MODULE_PARM_DESC(power_save
,
3970 "enable WiFi power management (default: disable)");
3972 module_param_named(power_level
, iwlagn_mod_params
.power_level
,
3974 MODULE_PARM_DESC(power_level
,
3975 "default power save level (range from 1 - 5, default: 1)");
3978 * For now, keep using power level 1 instead of automatically
3981 module_param_named(no_sleep_autoadjust
, iwlagn_mod_params
.no_sleep_autoadjust
,
3983 MODULE_PARM_DESC(no_sleep_autoadjust
,
3984 "don't automatically adjust sleep level "
3985 "according to maximum network latency (default: true)");