1 /******************************************************************************
3 * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
29 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/init.h>
32 #include <linux/slab.h>
33 #include <linux/dma-mapping.h>
34 #include <linux/delay.h>
35 #include <linux/sched.h>
36 #include <linux/skbuff.h>
37 #include <linux/netdevice.h>
38 #include <linux/firmware.h>
39 #include <linux/etherdevice.h>
40 #include <linux/if_arp.h>
42 #include <net/mac80211.h>
44 #include <asm/div64.h>
46 #include "iwl-eeprom.h"
50 #include "iwl-helpers.h"
52 #include "iwl-agn-calib.h"
54 #include "iwl-shared.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 void iwl_update_chain_flags(struct iwl_priv
*priv
)
85 struct iwl_rxon_context
*ctx
;
87 for_each_context(priv
, ctx
) {
88 iwlagn_set_rxon_chain(priv
, ctx
);
89 if (ctx
->active
.rx_chain
!= ctx
->staging
.rx_chain
)
90 iwlagn_commit_rxon(priv
, ctx
);
94 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
95 static void iwl_set_beacon_tim(struct iwl_priv
*priv
,
96 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
,
97 u8
*beacon
, u32 frame_size
)
100 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)beacon
;
103 * The index is relative to frame start but we start looking at the
104 * variable-length part of the beacon.
106 tim_idx
= mgmt
->u
.beacon
.variable
- beacon
;
108 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
109 while ((tim_idx
< (frame_size
- 2)) &&
110 (beacon
[tim_idx
] != WLAN_EID_TIM
))
111 tim_idx
+= beacon
[tim_idx
+1] + 2;
113 /* If TIM field was found, set variables */
114 if ((tim_idx
< (frame_size
- 1)) && (beacon
[tim_idx
] == WLAN_EID_TIM
)) {
115 tx_beacon_cmd
->tim_idx
= cpu_to_le16(tim_idx
);
116 tx_beacon_cmd
->tim_size
= beacon
[tim_idx
+1];
118 IWL_WARN(priv
, "Unable to find TIM Element in beacon\n");
121 int iwlagn_send_beacon_cmd(struct iwl_priv
*priv
)
123 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
;
124 struct iwl_host_cmd cmd
= {
125 .id
= REPLY_TX_BEACON
,
128 struct ieee80211_tx_info
*info
;
134 * We have to set up the TX command, the TX Beacon command, and the
138 lockdep_assert_held(&priv
->shrd
->mutex
);
140 if (!priv
->beacon_ctx
) {
141 IWL_ERR(priv
, "trying to build beacon w/o beacon context!\n");
145 if (WARN_ON(!priv
->beacon_skb
))
148 /* Allocate beacon command */
149 if (!priv
->beacon_cmd
)
150 priv
->beacon_cmd
= kzalloc(sizeof(*tx_beacon_cmd
), GFP_KERNEL
);
151 tx_beacon_cmd
= priv
->beacon_cmd
;
155 frame_size
= priv
->beacon_skb
->len
;
157 /* Set up TX command fields */
158 tx_beacon_cmd
->tx
.len
= cpu_to_le16((u16
)frame_size
);
159 tx_beacon_cmd
->tx
.sta_id
= priv
->beacon_ctx
->bcast_sta_id
;
160 tx_beacon_cmd
->tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
161 tx_beacon_cmd
->tx
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
|
162 TX_CMD_FLG_TSF_MSK
| TX_CMD_FLG_STA_RATE_MSK
;
164 /* Set up TX beacon command fields */
165 iwl_set_beacon_tim(priv
, tx_beacon_cmd
, priv
->beacon_skb
->data
,
168 /* Set up packet rate and flags */
169 info
= IEEE80211_SKB_CB(priv
->beacon_skb
);
172 * Let's set up the rate at least somewhat correctly;
173 * it will currently not actually be used by the uCode,
174 * it uses the broadcast station's rate instead.
176 if (info
->control
.rates
[0].idx
< 0 ||
177 info
->control
.rates
[0].flags
& IEEE80211_TX_RC_MCS
)
180 rate
= info
->control
.rates
[0].idx
;
182 priv
->mgmt_tx_ant
= iwl_toggle_tx_ant(priv
, priv
->mgmt_tx_ant
,
183 hw_params(priv
).valid_tx_ant
);
184 rate_flags
= iwl_ant_idx_to_flags(priv
->mgmt_tx_ant
);
186 /* In mac80211, rates for 5 GHz start at 0 */
187 if (info
->band
== IEEE80211_BAND_5GHZ
)
188 rate
+= IWL_FIRST_OFDM_RATE
;
189 else if (rate
>= IWL_FIRST_CCK_RATE
&& rate
<= IWL_LAST_CCK_RATE
)
190 rate_flags
|= RATE_MCS_CCK_MSK
;
192 tx_beacon_cmd
->tx
.rate_n_flags
=
193 iwl_hw_set_rate_n_flags(rate
, rate_flags
);
196 cmd
.len
[0] = sizeof(*tx_beacon_cmd
);
197 cmd
.data
[0] = tx_beacon_cmd
;
198 cmd
.dataflags
[0] = IWL_HCMD_DFL_NOCOPY
;
199 cmd
.len
[1] = frame_size
;
200 cmd
.data
[1] = priv
->beacon_skb
->data
;
201 cmd
.dataflags
[1] = IWL_HCMD_DFL_NOCOPY
;
203 return iwl_trans_send_cmd(trans(priv
), &cmd
);
206 static void iwl_bg_beacon_update(struct work_struct
*work
)
208 struct iwl_priv
*priv
=
209 container_of(work
, struct iwl_priv
, beacon_update
);
210 struct sk_buff
*beacon
;
212 mutex_lock(&priv
->shrd
->mutex
);
213 if (!priv
->beacon_ctx
) {
214 IWL_ERR(priv
, "updating beacon w/o beacon context!\n");
218 if (priv
->beacon_ctx
->vif
->type
!= NL80211_IFTYPE_AP
) {
220 * The ucode will send beacon notifications even in
221 * IBSS mode, but we don't want to process them. But
222 * we need to defer the type check to here due to
223 * requiring locking around the beacon_ctx access.
228 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
229 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->beacon_ctx
->vif
);
231 IWL_ERR(priv
, "update beacon failed -- keeping old\n");
235 /* new beacon skb is allocated every time; dispose previous.*/
236 dev_kfree_skb(priv
->beacon_skb
);
238 priv
->beacon_skb
= beacon
;
240 iwlagn_send_beacon_cmd(priv
);
242 mutex_unlock(&priv
->shrd
->mutex
);
245 static void iwl_bg_bt_runtime_config(struct work_struct
*work
)
247 struct iwl_priv
*priv
=
248 container_of(work
, struct iwl_priv
, bt_runtime_config
);
250 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
253 /* dont send host command if rf-kill is on */
254 if (!iwl_is_ready_rf(priv
))
256 iwlagn_send_advance_bt_config(priv
);
259 static void iwl_bg_bt_full_concurrency(struct work_struct
*work
)
261 struct iwl_priv
*priv
=
262 container_of(work
, struct iwl_priv
, bt_full_concurrency
);
263 struct iwl_rxon_context
*ctx
;
265 mutex_lock(&priv
->shrd
->mutex
);
267 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
270 /* dont send host command if rf-kill is on */
271 if (!iwl_is_ready_rf(priv
))
274 IWL_DEBUG_INFO(priv
, "BT coex in %s mode\n",
275 priv
->bt_full_concurrent
?
276 "full concurrency" : "3-wire");
279 * LQ & RXON updated cmds must be sent before BT Config cmd
280 * to avoid 3-wire collisions
282 for_each_context(priv
, ctx
) {
283 iwlagn_set_rxon_chain(priv
, ctx
);
284 iwlagn_commit_rxon(priv
, ctx
);
287 iwlagn_send_advance_bt_config(priv
);
289 mutex_unlock(&priv
->shrd
->mutex
);
293 * iwl_bg_statistics_periodic - Timer callback to queue statistics
295 * This callback is provided in order to send a statistics request.
297 * This timer function is continually reset to execute within
298 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
299 * was received. We need to ensure we receive the statistics in order
300 * to update the temperature used for calibrating the TXPOWER.
302 static void iwl_bg_statistics_periodic(unsigned long data
)
304 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
306 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
309 /* dont send host command if rf-kill is on */
310 if (!iwl_is_ready_rf(priv
))
313 iwl_send_statistics_request(priv
, CMD_ASYNC
, false);
317 static void iwl_print_cont_event_trace(struct iwl_priv
*priv
, u32 base
,
318 u32 start_idx
, u32 num_events
,
322 u32 ptr
; /* SRAM byte address of log data */
323 u32 ev
, time
, data
; /* event log data */
324 unsigned long reg_flags
;
327 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 2 * sizeof(u32
));
329 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 3 * sizeof(u32
));
331 /* Make sure device is powered up for SRAM reads */
332 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
333 if (iwl_grab_nic_access(priv
)) {
334 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
338 /* Set starting address; reads will auto-increment */
339 iwl_write32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
343 * "time" is actually "data" for mode 0 (no timestamp).
344 * place event id # at far right for easier visual parsing.
346 for (i
= 0; i
< num_events
; i
++) {
347 ev
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
348 time
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
350 trace_iwlwifi_dev_ucode_cont_event(priv
,
353 data
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
354 trace_iwlwifi_dev_ucode_cont_event(priv
,
358 /* Allow device to power down */
359 iwl_release_nic_access(priv
);
360 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
363 static void iwl_continuous_event_trace(struct iwl_priv
*priv
)
365 u32 capacity
; /* event log capacity in # entries */
366 u32 base
; /* SRAM byte address of event log header */
367 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
368 u32 num_wraps
; /* # times uCode wrapped to top of log */
369 u32 next_entry
; /* index of next entry to be written by uCode */
371 base
= priv
->device_pointers
.error_event_table
;
372 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
373 capacity
= iwl_read_targ_mem(priv
, base
);
374 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
375 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
376 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
380 if (num_wraps
== priv
->event_log
.num_wraps
) {
381 iwl_print_cont_event_trace(priv
,
382 base
, priv
->event_log
.next_entry
,
383 next_entry
- priv
->event_log
.next_entry
,
385 priv
->event_log
.non_wraps_count
++;
387 if ((num_wraps
- priv
->event_log
.num_wraps
) > 1)
388 priv
->event_log
.wraps_more_count
++;
390 priv
->event_log
.wraps_once_count
++;
391 trace_iwlwifi_dev_ucode_wrap_event(priv
,
392 num_wraps
- priv
->event_log
.num_wraps
,
393 next_entry
, priv
->event_log
.next_entry
);
394 if (next_entry
< priv
->event_log
.next_entry
) {
395 iwl_print_cont_event_trace(priv
, base
,
396 priv
->event_log
.next_entry
,
397 capacity
- priv
->event_log
.next_entry
,
400 iwl_print_cont_event_trace(priv
, base
, 0,
403 iwl_print_cont_event_trace(priv
, base
,
404 next_entry
, capacity
- next_entry
,
407 iwl_print_cont_event_trace(priv
, base
, 0,
411 priv
->event_log
.num_wraps
= num_wraps
;
412 priv
->event_log
.next_entry
= next_entry
;
416 * iwl_bg_ucode_trace - Timer callback to log ucode event
418 * The timer is continually set to execute every
419 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
420 * this function is to perform continuous uCode event logging operation
423 static void iwl_bg_ucode_trace(unsigned long data
)
425 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
427 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
430 if (priv
->event_log
.ucode_trace
) {
431 iwl_continuous_event_trace(priv
);
432 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
433 mod_timer(&priv
->ucode_trace
,
434 jiffies
+ msecs_to_jiffies(UCODE_TRACE_PERIOD
));
438 static void iwl_bg_tx_flush(struct work_struct
*work
)
440 struct iwl_priv
*priv
=
441 container_of(work
, struct iwl_priv
, tx_flush
);
443 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
446 /* do nothing if rf-kill is on */
447 if (!iwl_is_ready_rf(priv
))
450 IWL_DEBUG_INFO(priv
, "device request: flush all tx frames\n");
451 iwlagn_dev_txfifo_flush(priv
, IWL_DROP_ALL
);
454 /*****************************************************************************
458 *****************************************************************************/
460 #ifdef CONFIG_IWLWIFI_DEBUG
463 * The following adds a new attribute to the sysfs representation
464 * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
465 * used for controlling the debug level.
467 * See the level definitions in iwl for details.
469 * The debug_level being managed using sysfs below is a per device debug
470 * level that is used instead of the global debug level if it (the per
471 * device debug level) is set.
473 static ssize_t
show_debug_level(struct device
*d
,
474 struct device_attribute
*attr
, char *buf
)
476 struct iwl_shared
*shrd
= dev_get_drvdata(d
);
477 return sprintf(buf
, "0x%08X\n", iwl_get_debug_level(shrd
));
479 static ssize_t
store_debug_level(struct device
*d
,
480 struct device_attribute
*attr
,
481 const char *buf
, size_t count
)
483 struct iwl_shared
*shrd
= dev_get_drvdata(d
);
484 struct iwl_priv
*priv
= shrd
->priv
;
488 ret
= strict_strtoul(buf
, 0, &val
);
490 IWL_ERR(priv
, "%s is not in hex or decimal form.\n", buf
);
492 shrd
->dbg_level_dev
= val
;
493 if (iwl_alloc_traffic_mem(priv
))
495 "Not enough memory to generate traffic log\n");
497 return strnlen(buf
, count
);
500 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
501 show_debug_level
, store_debug_level
);
504 #endif /* CONFIG_IWLWIFI_DEBUG */
507 static ssize_t
show_temperature(struct device
*d
,
508 struct device_attribute
*attr
, char *buf
)
510 struct iwl_shared
*shrd
= dev_get_drvdata(d
);
511 struct iwl_priv
*priv
= shrd
->priv
;
513 if (!iwl_is_alive(priv
))
516 return sprintf(buf
, "%d\n", priv
->temperature
);
519 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
521 static ssize_t
show_tx_power(struct device
*d
,
522 struct device_attribute
*attr
, char *buf
)
524 struct iwl_priv
*priv
= dev_get_drvdata(d
);
526 if (!iwl_is_ready_rf(priv
))
527 return sprintf(buf
, "off\n");
529 return sprintf(buf
, "%d\n", priv
->tx_power_user_lmt
);
532 static ssize_t
store_tx_power(struct device
*d
,
533 struct device_attribute
*attr
,
534 const char *buf
, size_t count
)
536 struct iwl_priv
*priv
= dev_get_drvdata(d
);
540 ret
= strict_strtoul(buf
, 10, &val
);
542 IWL_INFO(priv
, "%s is not in decimal form.\n", buf
);
544 ret
= iwl_set_tx_power(priv
, val
, false);
546 IWL_ERR(priv
, "failed setting tx power (0x%d).\n",
554 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
556 static struct attribute
*iwl_sysfs_entries
[] = {
557 &dev_attr_temperature
.attr
,
558 &dev_attr_tx_power
.attr
,
559 #ifdef CONFIG_IWLWIFI_DEBUG
560 &dev_attr_debug_level
.attr
,
565 static struct attribute_group iwl_attribute_group
= {
566 .name
= NULL
, /* put in device directory */
567 .attrs
= iwl_sysfs_entries
,
570 /******************************************************************************
572 * uCode download functions
574 ******************************************************************************/
576 static void iwl_free_fw_desc(struct iwl_priv
*priv
, struct fw_desc
*desc
)
579 dma_free_coherent(priv
->bus
->dev
, desc
->len
,
580 desc
->v_addr
, desc
->p_addr
);
585 static void iwl_free_fw_img(struct iwl_priv
*priv
, struct fw_img
*img
)
587 iwl_free_fw_desc(priv
, &img
->code
);
588 iwl_free_fw_desc(priv
, &img
->data
);
591 static void iwl_dealloc_ucode(struct iwl_priv
*priv
)
593 iwl_free_fw_img(priv
, &priv
->ucode_rt
);
594 iwl_free_fw_img(priv
, &priv
->ucode_init
);
595 iwl_free_fw_img(priv
, &priv
->ucode_wowlan
);
598 static int iwl_alloc_fw_desc(struct iwl_priv
*priv
, struct fw_desc
*desc
,
599 const void *data
, size_t len
)
606 desc
->v_addr
= dma_alloc_coherent(priv
->bus
->dev
, len
,
607 &desc
->p_addr
, GFP_KERNEL
);
612 memcpy(desc
->v_addr
, data
, len
);
616 static void iwl_init_context(struct iwl_priv
*priv
, u32 ucode_flags
)
618 static const u8 iwlagn_bss_ac_to_fifo
[] = {
624 static const u8 iwlagn_bss_ac_to_queue
[] = {
627 static const u8 iwlagn_pan_ac_to_fifo
[] = {
633 static const u8 iwlagn_pan_ac_to_queue
[] = {
639 * The default context is always valid,
640 * the PAN context depends on uCode.
642 priv
->valid_contexts
= BIT(IWL_RXON_CTX_BSS
);
643 if (ucode_flags
& IWL_UCODE_TLV_FLAGS_PAN
)
644 priv
->valid_contexts
|= BIT(IWL_RXON_CTX_PAN
);
646 for (i
= 0; i
< NUM_IWL_RXON_CTX
; i
++)
647 priv
->contexts
[i
].ctxid
= i
;
649 priv
->contexts
[IWL_RXON_CTX_BSS
].always_active
= true;
650 priv
->contexts
[IWL_RXON_CTX_BSS
].is_active
= true;
651 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_cmd
= REPLY_RXON
;
652 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_timing_cmd
= REPLY_RXON_TIMING
;
653 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_assoc_cmd
= REPLY_RXON_ASSOC
;
654 priv
->contexts
[IWL_RXON_CTX_BSS
].qos_cmd
= REPLY_QOS_PARAM
;
655 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_sta_id
= IWL_AP_ID
;
656 priv
->contexts
[IWL_RXON_CTX_BSS
].wep_key_cmd
= REPLY_WEPKEY
;
657 priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_fifo
= iwlagn_bss_ac_to_fifo
;
658 priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_queue
= iwlagn_bss_ac_to_queue
;
659 priv
->contexts
[IWL_RXON_CTX_BSS
].exclusive_interface_modes
=
660 BIT(NL80211_IFTYPE_ADHOC
);
661 priv
->contexts
[IWL_RXON_CTX_BSS
].interface_modes
=
662 BIT(NL80211_IFTYPE_STATION
);
663 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_devtype
= RXON_DEV_TYPE_AP
;
664 priv
->contexts
[IWL_RXON_CTX_BSS
].ibss_devtype
= RXON_DEV_TYPE_IBSS
;
665 priv
->contexts
[IWL_RXON_CTX_BSS
].station_devtype
= RXON_DEV_TYPE_ESS
;
666 priv
->contexts
[IWL_RXON_CTX_BSS
].unused_devtype
= RXON_DEV_TYPE_ESS
;
668 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_cmd
= REPLY_WIPAN_RXON
;
669 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_timing_cmd
=
670 REPLY_WIPAN_RXON_TIMING
;
671 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_assoc_cmd
=
672 REPLY_WIPAN_RXON_ASSOC
;
673 priv
->contexts
[IWL_RXON_CTX_PAN
].qos_cmd
= REPLY_WIPAN_QOS_PARAM
;
674 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_sta_id
= IWL_AP_ID_PAN
;
675 priv
->contexts
[IWL_RXON_CTX_PAN
].wep_key_cmd
= REPLY_WIPAN_WEPKEY
;
676 priv
->contexts
[IWL_RXON_CTX_PAN
].bcast_sta_id
= IWLAGN_PAN_BCAST_ID
;
677 priv
->contexts
[IWL_RXON_CTX_PAN
].station_flags
= STA_FLG_PAN_STATION
;
678 priv
->contexts
[IWL_RXON_CTX_PAN
].ac_to_fifo
= iwlagn_pan_ac_to_fifo
;
679 priv
->contexts
[IWL_RXON_CTX_PAN
].ac_to_queue
= iwlagn_pan_ac_to_queue
;
680 priv
->contexts
[IWL_RXON_CTX_PAN
].mcast_queue
= IWL_IPAN_MCAST_QUEUE
;
681 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
=
682 BIT(NL80211_IFTYPE_STATION
) | BIT(NL80211_IFTYPE_AP
);
684 if (ucode_flags
& IWL_UCODE_TLV_FLAGS_P2P
)
685 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
|=
686 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
687 BIT(NL80211_IFTYPE_P2P_GO
);
689 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_devtype
= RXON_DEV_TYPE_CP
;
690 priv
->contexts
[IWL_RXON_CTX_PAN
].station_devtype
= RXON_DEV_TYPE_2STA
;
691 priv
->contexts
[IWL_RXON_CTX_PAN
].unused_devtype
= RXON_DEV_TYPE_P2P
;
693 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
697 struct iwlagn_ucode_capabilities
{
698 u32 max_probe_length
;
699 u32 standard_phy_calibration_size
;
703 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
);
704 static int iwl_mac_setup_register(struct iwl_priv
*priv
,
705 struct iwlagn_ucode_capabilities
*capa
);
707 #define UCODE_EXPERIMENTAL_INDEX 100
708 #define UCODE_EXPERIMENTAL_TAG "exp"
710 static int __must_check
iwl_request_firmware(struct iwl_priv
*priv
, bool first
)
712 const char *name_pre
= priv
->cfg
->fw_name_pre
;
716 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
717 priv
->fw_index
= UCODE_EXPERIMENTAL_INDEX
;
718 strcpy(tag
, UCODE_EXPERIMENTAL_TAG
);
719 } else if (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
) {
721 priv
->fw_index
= priv
->cfg
->ucode_api_max
;
722 sprintf(tag
, "%d", priv
->fw_index
);
725 sprintf(tag
, "%d", priv
->fw_index
);
728 if (priv
->fw_index
< priv
->cfg
->ucode_api_min
) {
729 IWL_ERR(priv
, "no suitable firmware found!\n");
733 sprintf(priv
->firmware_name
, "%s%s%s", name_pre
, tag
, ".ucode");
735 IWL_DEBUG_INFO(priv
, "attempting to load firmware %s'%s'\n",
736 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
737 ? "EXPERIMENTAL " : "",
738 priv
->firmware_name
);
740 return request_firmware_nowait(THIS_MODULE
, 1, priv
->firmware_name
,
742 GFP_KERNEL
, priv
, iwl_ucode_callback
);
745 struct iwlagn_firmware_pieces
{
746 const void *inst
, *data
, *init
, *init_data
, *wowlan_inst
, *wowlan_data
;
747 size_t inst_size
, data_size
, init_size
, init_data_size
,
748 wowlan_inst_size
, wowlan_data_size
;
752 u32 init_evtlog_ptr
, init_evtlog_size
, init_errlog_ptr
;
753 u32 inst_evtlog_ptr
, inst_evtlog_size
, inst_errlog_ptr
;
756 static int iwlagn_load_legacy_firmware(struct iwl_priv
*priv
,
757 const struct firmware
*ucode_raw
,
758 struct iwlagn_firmware_pieces
*pieces
)
760 struct iwl_ucode_header
*ucode
= (void *)ucode_raw
->data
;
761 u32 api_ver
, hdr_size
;
764 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
765 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
770 if (ucode_raw
->size
< hdr_size
) {
771 IWL_ERR(priv
, "File size too small!\n");
774 pieces
->build
= le32_to_cpu(ucode
->u
.v2
.build
);
775 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v2
.inst_size
);
776 pieces
->data_size
= le32_to_cpu(ucode
->u
.v2
.data_size
);
777 pieces
->init_size
= le32_to_cpu(ucode
->u
.v2
.init_size
);
778 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v2
.init_data_size
);
779 src
= ucode
->u
.v2
.data
;
785 if (ucode_raw
->size
< hdr_size
) {
786 IWL_ERR(priv
, "File size too small!\n");
790 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v1
.inst_size
);
791 pieces
->data_size
= le32_to_cpu(ucode
->u
.v1
.data_size
);
792 pieces
->init_size
= le32_to_cpu(ucode
->u
.v1
.init_size
);
793 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v1
.init_data_size
);
794 src
= ucode
->u
.v1
.data
;
798 /* Verify size of file vs. image size info in file's header */
799 if (ucode_raw
->size
!= hdr_size
+ pieces
->inst_size
+
800 pieces
->data_size
+ pieces
->init_size
+
801 pieces
->init_data_size
) {
804 "uCode file size %d does not match expected size\n",
805 (int)ucode_raw
->size
);
810 src
+= pieces
->inst_size
;
812 src
+= pieces
->data_size
;
814 src
+= pieces
->init_size
;
815 pieces
->init_data
= src
;
816 src
+= pieces
->init_data_size
;
821 static int iwlagn_load_firmware(struct iwl_priv
*priv
,
822 const struct firmware
*ucode_raw
,
823 struct iwlagn_firmware_pieces
*pieces
,
824 struct iwlagn_ucode_capabilities
*capa
)
826 struct iwl_tlv_ucode_header
*ucode
= (void *)ucode_raw
->data
;
827 struct iwl_ucode_tlv
*tlv
;
828 size_t len
= ucode_raw
->size
;
830 int wanted_alternative
= iwlagn_mod_params
.wanted_ucode_alternative
;
834 enum iwl_ucode_tlv_type tlv_type
;
837 if (len
< sizeof(*ucode
)) {
838 IWL_ERR(priv
, "uCode has invalid length: %zd\n", len
);
842 if (ucode
->magic
!= cpu_to_le32(IWL_TLV_UCODE_MAGIC
)) {
843 IWL_ERR(priv
, "invalid uCode magic: 0X%x\n",
844 le32_to_cpu(ucode
->magic
));
849 * Check which alternatives are present, and "downgrade"
850 * when the chosen alternative is not present, warning
851 * the user when that happens. Some files may not have
852 * any alternatives, so don't warn in that case.
854 alternatives
= le64_to_cpu(ucode
->alternatives
);
855 tmp
= wanted_alternative
;
856 if (wanted_alternative
> 63)
857 wanted_alternative
= 63;
858 while (wanted_alternative
&& !(alternatives
& BIT(wanted_alternative
)))
859 wanted_alternative
--;
860 if (wanted_alternative
&& wanted_alternative
!= tmp
)
862 "uCode alternative %d not available, choosing %d\n",
863 tmp
, wanted_alternative
);
865 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
866 pieces
->build
= le32_to_cpu(ucode
->build
);
869 len
-= sizeof(*ucode
);
871 while (len
>= sizeof(*tlv
)) {
877 tlv_len
= le32_to_cpu(tlv
->length
);
878 tlv_type
= le16_to_cpu(tlv
->type
);
879 tlv_alt
= le16_to_cpu(tlv
->alternative
);
880 tlv_data
= tlv
->data
;
883 IWL_ERR(priv
, "invalid TLV len: %zd/%u\n",
887 len
-= ALIGN(tlv_len
, 4);
888 data
+= sizeof(*tlv
) + ALIGN(tlv_len
, 4);
891 * Alternative 0 is always valid.
893 * Skip alternative TLVs that are not selected.
895 if (tlv_alt
!= 0 && tlv_alt
!= wanted_alternative
)
899 case IWL_UCODE_TLV_INST
:
900 pieces
->inst
= tlv_data
;
901 pieces
->inst_size
= tlv_len
;
903 case IWL_UCODE_TLV_DATA
:
904 pieces
->data
= tlv_data
;
905 pieces
->data_size
= tlv_len
;
907 case IWL_UCODE_TLV_INIT
:
908 pieces
->init
= tlv_data
;
909 pieces
->init_size
= tlv_len
;
911 case IWL_UCODE_TLV_INIT_DATA
:
912 pieces
->init_data
= tlv_data
;
913 pieces
->init_data_size
= tlv_len
;
915 case IWL_UCODE_TLV_BOOT
:
916 IWL_ERR(priv
, "Found unexpected BOOT ucode\n");
918 case IWL_UCODE_TLV_PROBE_MAX_LEN
:
919 if (tlv_len
!= sizeof(u32
))
920 goto invalid_tlv_len
;
921 capa
->max_probe_length
=
922 le32_to_cpup((__le32
*)tlv_data
);
924 case IWL_UCODE_TLV_PAN
:
926 goto invalid_tlv_len
;
927 capa
->flags
|= IWL_UCODE_TLV_FLAGS_PAN
;
929 case IWL_UCODE_TLV_FLAGS
:
930 /* must be at least one u32 */
931 if (tlv_len
< sizeof(u32
))
932 goto invalid_tlv_len
;
933 /* and a proper number of u32s */
934 if (tlv_len
% sizeof(u32
))
935 goto invalid_tlv_len
;
937 * This driver only reads the first u32 as
938 * right now no more features are defined,
939 * if that changes then either the driver
940 * will not work with the new firmware, or
941 * it'll not take advantage of new features.
943 capa
->flags
= le32_to_cpup((__le32
*)tlv_data
);
945 case IWL_UCODE_TLV_INIT_EVTLOG_PTR
:
946 if (tlv_len
!= sizeof(u32
))
947 goto invalid_tlv_len
;
948 pieces
->init_evtlog_ptr
=
949 le32_to_cpup((__le32
*)tlv_data
);
951 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE
:
952 if (tlv_len
!= sizeof(u32
))
953 goto invalid_tlv_len
;
954 pieces
->init_evtlog_size
=
955 le32_to_cpup((__le32
*)tlv_data
);
957 case IWL_UCODE_TLV_INIT_ERRLOG_PTR
:
958 if (tlv_len
!= sizeof(u32
))
959 goto invalid_tlv_len
;
960 pieces
->init_errlog_ptr
=
961 le32_to_cpup((__le32
*)tlv_data
);
963 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR
:
964 if (tlv_len
!= sizeof(u32
))
965 goto invalid_tlv_len
;
966 pieces
->inst_evtlog_ptr
=
967 le32_to_cpup((__le32
*)tlv_data
);
969 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE
:
970 if (tlv_len
!= sizeof(u32
))
971 goto invalid_tlv_len
;
972 pieces
->inst_evtlog_size
=
973 le32_to_cpup((__le32
*)tlv_data
);
975 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR
:
976 if (tlv_len
!= sizeof(u32
))
977 goto invalid_tlv_len
;
978 pieces
->inst_errlog_ptr
=
979 le32_to_cpup((__le32
*)tlv_data
);
981 case IWL_UCODE_TLV_ENHANCE_SENS_TBL
:
983 goto invalid_tlv_len
;
984 priv
->enhance_sensitivity_table
= true;
986 case IWL_UCODE_TLV_WOWLAN_INST
:
987 pieces
->wowlan_inst
= tlv_data
;
988 pieces
->wowlan_inst_size
= tlv_len
;
990 case IWL_UCODE_TLV_WOWLAN_DATA
:
991 pieces
->wowlan_data
= tlv_data
;
992 pieces
->wowlan_data_size
= tlv_len
;
994 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE
:
995 if (tlv_len
!= sizeof(u32
))
996 goto invalid_tlv_len
;
997 capa
->standard_phy_calibration_size
=
998 le32_to_cpup((__le32
*)tlv_data
);
1001 IWL_DEBUG_INFO(priv
, "unknown TLV: %d\n", tlv_type
);
1007 IWL_ERR(priv
, "invalid TLV after parsing: %zd\n", len
);
1008 iwl_print_hex_dump(priv
, IWL_DL_FW
, (u8
*)data
, len
);
1015 IWL_ERR(priv
, "TLV %d has invalid size: %u\n", tlv_type
, tlv_len
);
1016 iwl_print_hex_dump(priv
, IWL_DL_FW
, tlv_data
, tlv_len
);
1022 * iwl_ucode_callback - callback when firmware was loaded
1024 * If loaded successfully, copies the firmware into buffers
1025 * for the card to fetch (via DMA).
1027 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
)
1029 struct iwl_priv
*priv
= context
;
1030 struct iwl_ucode_header
*ucode
;
1032 struct iwlagn_firmware_pieces pieces
;
1033 const unsigned int api_max
= priv
->cfg
->ucode_api_max
;
1034 unsigned int api_ok
= priv
->cfg
->ucode_api_ok
;
1035 const unsigned int api_min
= priv
->cfg
->ucode_api_min
;
1039 struct iwlagn_ucode_capabilities ucode_capa
= {
1040 .max_probe_length
= 200,
1041 .standard_phy_calibration_size
=
1042 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE
,
1048 memset(&pieces
, 0, sizeof(pieces
));
1051 if (priv
->fw_index
<= api_ok
)
1053 "request for firmware file '%s' failed.\n",
1054 priv
->firmware_name
);
1058 IWL_DEBUG_INFO(priv
, "Loaded firmware file '%s' (%zd bytes).\n",
1059 priv
->firmware_name
, ucode_raw
->size
);
1061 /* Make sure that we got at least the API version number */
1062 if (ucode_raw
->size
< 4) {
1063 IWL_ERR(priv
, "File size way too small!\n");
1067 /* Data from ucode file: header followed by uCode images */
1068 ucode
= (struct iwl_ucode_header
*)ucode_raw
->data
;
1071 err
= iwlagn_load_legacy_firmware(priv
, ucode_raw
, &pieces
);
1073 err
= iwlagn_load_firmware(priv
, ucode_raw
, &pieces
,
1079 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
1080 build
= pieces
.build
;
1083 * api_ver should match the api version forming part of the
1084 * firmware filename ... but we don't check for that and only rely
1085 * on the API version read from firmware header from here on forward
1087 /* no api version check required for experimental uCode */
1088 if (priv
->fw_index
!= UCODE_EXPERIMENTAL_INDEX
) {
1089 if (api_ver
< api_min
|| api_ver
> api_max
) {
1091 "Driver unable to support your firmware API. "
1092 "Driver supports v%u, firmware is v%u.\n",
1097 if (api_ver
< api_ok
) {
1098 if (api_ok
!= api_max
)
1099 IWL_ERR(priv
, "Firmware has old API version, "
1100 "expected v%u through v%u, got v%u.\n",
1101 api_ok
, api_max
, api_ver
);
1103 IWL_ERR(priv
, "Firmware has old API version, "
1104 "expected v%u, got v%u.\n",
1106 IWL_ERR(priv
, "New firmware can be obtained from "
1107 "http://www.intellinuxwireless.org/.\n");
1112 sprintf(buildstr
, " build %u%s", build
,
1113 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
1118 IWL_INFO(priv
, "loaded firmware version %u.%u.%u.%u%s\n",
1119 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1120 IWL_UCODE_MINOR(priv
->ucode_ver
),
1121 IWL_UCODE_API(priv
->ucode_ver
),
1122 IWL_UCODE_SERIAL(priv
->ucode_ver
),
1125 snprintf(priv
->hw
->wiphy
->fw_version
,
1126 sizeof(priv
->hw
->wiphy
->fw_version
),
1128 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1129 IWL_UCODE_MINOR(priv
->ucode_ver
),
1130 IWL_UCODE_API(priv
->ucode_ver
),
1131 IWL_UCODE_SERIAL(priv
->ucode_ver
),
1135 * For any of the failures below (before allocating pci memory)
1136 * we will try to load a version with a smaller API -- maybe the
1137 * user just got a corrupted version of the latest API.
1140 IWL_DEBUG_INFO(priv
, "f/w package hdr ucode version raw = 0x%x\n",
1142 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime inst size = %Zd\n",
1144 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime data size = %Zd\n",
1146 IWL_DEBUG_INFO(priv
, "f/w package hdr init inst size = %Zd\n",
1148 IWL_DEBUG_INFO(priv
, "f/w package hdr init data size = %Zd\n",
1149 pieces
.init_data_size
);
1151 /* Verify that uCode images will fit in card's SRAM */
1152 if (pieces
.inst_size
> hw_params(priv
).max_inst_size
) {
1153 IWL_ERR(priv
, "uCode instr len %Zd too large to fit in\n",
1158 if (pieces
.data_size
> hw_params(priv
).max_data_size
) {
1159 IWL_ERR(priv
, "uCode data len %Zd too large to fit in\n",
1164 if (pieces
.init_size
> hw_params(priv
).max_inst_size
) {
1165 IWL_ERR(priv
, "uCode init instr len %Zd too large to fit in\n",
1170 if (pieces
.init_data_size
> hw_params(priv
).max_data_size
) {
1171 IWL_ERR(priv
, "uCode init data len %Zd too large to fit in\n",
1172 pieces
.init_data_size
);
1176 /* Allocate ucode buffers for card's bus-master loading ... */
1178 /* Runtime instructions and 2 copies of data:
1179 * 1) unmodified from disk
1180 * 2) backup cache for save/restore during power-downs */
1181 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_rt
.code
,
1182 pieces
.inst
, pieces
.inst_size
))
1184 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_rt
.data
,
1185 pieces
.data
, pieces
.data_size
))
1188 /* Initialization instructions and data */
1189 if (pieces
.init_size
&& pieces
.init_data_size
) {
1190 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_init
.code
,
1191 pieces
.init
, pieces
.init_size
))
1193 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_init
.data
,
1194 pieces
.init_data
, pieces
.init_data_size
))
1198 /* WoWLAN instructions and data */
1199 if (pieces
.wowlan_inst_size
&& pieces
.wowlan_data_size
) {
1200 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_wowlan
.code
,
1202 pieces
.wowlan_inst_size
))
1204 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_wowlan
.data
,
1206 pieces
.wowlan_data_size
))
1210 /* Now that we can no longer fail, copy information */
1213 * The (size - 16) / 12 formula is based on the information recorded
1214 * for each event, which is of mode 1 (including timestamp) for all
1215 * new microcodes that include this information.
1217 priv
->init_evtlog_ptr
= pieces
.init_evtlog_ptr
;
1218 if (pieces
.init_evtlog_size
)
1219 priv
->init_evtlog_size
= (pieces
.init_evtlog_size
- 16)/12;
1221 priv
->init_evtlog_size
=
1222 priv
->cfg
->base_params
->max_event_log_size
;
1223 priv
->init_errlog_ptr
= pieces
.init_errlog_ptr
;
1224 priv
->inst_evtlog_ptr
= pieces
.inst_evtlog_ptr
;
1225 if (pieces
.inst_evtlog_size
)
1226 priv
->inst_evtlog_size
= (pieces
.inst_evtlog_size
- 16)/12;
1228 priv
->inst_evtlog_size
=
1229 priv
->cfg
->base_params
->max_event_log_size
;
1230 priv
->inst_errlog_ptr
= pieces
.inst_errlog_ptr
;
1232 priv
->new_scan_threshold_behaviour
=
1233 !!(ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_NEWSCAN
);
1235 if (!(priv
->cfg
->sku
& EEPROM_SKU_CAP_IPAN_ENABLE
))
1236 ucode_capa
.flags
&= ~IWL_UCODE_TLV_FLAGS_PAN
;
1239 * if not PAN, then don't support P2P -- might be a uCode
1240 * packaging bug or due to the eeprom check above
1242 if (!(ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_PAN
))
1243 ucode_capa
.flags
&= ~IWL_UCODE_TLV_FLAGS_P2P
;
1245 if (ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_PAN
) {
1246 priv
->sta_key_max_num
= STA_KEY_MAX_NUM_PAN
;
1247 priv
->shrd
->cmd_queue
= IWL_IPAN_CMD_QUEUE_NUM
;
1249 priv
->sta_key_max_num
= STA_KEY_MAX_NUM
;
1250 priv
->shrd
->cmd_queue
= IWL_DEFAULT_CMD_QUEUE_NUM
;
1254 * figure out the offset of chain noise reset and gain commands
1255 * base on the size of standard phy calibration commands table size
1257 if (ucode_capa
.standard_phy_calibration_size
>
1258 IWL_MAX_PHY_CALIBRATE_TBL_SIZE
)
1259 ucode_capa
.standard_phy_calibration_size
=
1260 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE
;
1262 priv
->phy_calib_chain_noise_reset_cmd
=
1263 ucode_capa
.standard_phy_calibration_size
;
1264 priv
->phy_calib_chain_noise_gain_cmd
=
1265 ucode_capa
.standard_phy_calibration_size
+ 1;
1267 /* initialize all valid contexts */
1268 iwl_init_context(priv
, ucode_capa
.flags
);
1270 /**************************************************
1271 * This is still part of probe() in a sense...
1273 * 9. Setup and register with mac80211 and debugfs
1274 **************************************************/
1275 err
= iwl_mac_setup_register(priv
, &ucode_capa
);
1279 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
1281 IWL_ERR(priv
, "failed to create debugfs files. Ignoring error: %d\n", err
);
1283 err
= sysfs_create_group(&(priv
->bus
->dev
->kobj
),
1284 &iwl_attribute_group
);
1286 IWL_ERR(priv
, "failed to create sysfs device attributes\n");
1290 /* We have our copies now, allow OS release its copies */
1291 release_firmware(ucode_raw
);
1292 complete(&priv
->firmware_loading_complete
);
1296 /* try next, if any */
1297 if (iwl_request_firmware(priv
, false))
1299 release_firmware(ucode_raw
);
1303 IWL_ERR(priv
, "failed to allocate pci memory\n");
1304 iwl_dealloc_ucode(priv
);
1306 complete(&priv
->firmware_loading_complete
);
1307 device_release_driver(priv
->bus
->dev
);
1308 release_firmware(ucode_raw
);
1311 static void iwl_rf_kill_ct_config(struct iwl_priv
*priv
)
1313 struct iwl_ct_kill_config cmd
;
1314 struct iwl_ct_kill_throttling_config adv_cmd
;
1315 unsigned long flags
;
1318 spin_lock_irqsave(&priv
->shrd
->lock
, flags
);
1319 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
1320 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
1321 spin_unlock_irqrestore(&priv
->shrd
->lock
, flags
);
1322 priv
->thermal_throttle
.ct_kill_toggle
= false;
1324 if (priv
->cfg
->base_params
->support_ct_kill_exit
) {
1325 adv_cmd
.critical_temperature_enter
=
1326 cpu_to_le32(hw_params(priv
).ct_kill_threshold
);
1327 adv_cmd
.critical_temperature_exit
=
1328 cpu_to_le32(hw_params(priv
).ct_kill_exit_threshold
);
1330 ret
= iwl_trans_send_cmd_pdu(trans(priv
),
1331 REPLY_CT_KILL_CONFIG_CMD
,
1332 CMD_SYNC
, sizeof(adv_cmd
), &adv_cmd
);
1334 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1336 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1337 "succeeded, critical temperature enter is %d,"
1339 hw_params(priv
).ct_kill_threshold
,
1340 hw_params(priv
).ct_kill_exit_threshold
);
1342 cmd
.critical_temperature_R
=
1343 cpu_to_le32(hw_params(priv
).ct_kill_threshold
);
1345 ret
= iwl_trans_send_cmd_pdu(trans(priv
),
1346 REPLY_CT_KILL_CONFIG_CMD
,
1347 CMD_SYNC
, sizeof(cmd
), &cmd
);
1349 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1351 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1353 "critical temperature is %d\n",
1354 hw_params(priv
).ct_kill_threshold
);
1358 static int iwlagn_send_calib_cfg_rt(struct iwl_priv
*priv
, u32 cfg
)
1360 struct iwl_calib_cfg_cmd calib_cfg_cmd
;
1361 struct iwl_host_cmd cmd
= {
1362 .id
= CALIBRATION_CFG_CMD
,
1363 .len
= { sizeof(struct iwl_calib_cfg_cmd
), },
1364 .data
= { &calib_cfg_cmd
, },
1367 memset(&calib_cfg_cmd
, 0, sizeof(calib_cfg_cmd
));
1368 calib_cfg_cmd
.ucd_calib_cfg
.once
.is_enable
= IWL_CALIB_INIT_CFG_ALL
;
1369 calib_cfg_cmd
.ucd_calib_cfg
.once
.start
= cpu_to_le32(cfg
);
1371 return iwl_trans_send_cmd(trans(priv
), &cmd
);
1375 static int iwlagn_send_tx_ant_config(struct iwl_priv
*priv
, u8 valid_tx_ant
)
1377 struct iwl_tx_ant_config_cmd tx_ant_cmd
= {
1378 .valid
= cpu_to_le32(valid_tx_ant
),
1381 if (IWL_UCODE_API(priv
->ucode_ver
) > 1) {
1382 IWL_DEBUG_HC(priv
, "select valid tx ant: %u\n", valid_tx_ant
);
1383 return iwl_trans_send_cmd_pdu(trans(priv
),
1384 TX_ANT_CONFIGURATION_CMD
,
1386 sizeof(struct iwl_tx_ant_config_cmd
),
1389 IWL_DEBUG_HC(priv
, "TX_ANT_CONFIGURATION_CMD not supported\n");
1395 * iwl_alive_start - called after REPLY_ALIVE notification received
1396 * from protocol/runtime uCode (initialization uCode's
1397 * Alive gets handled by iwl_init_alive_start()).
1399 int iwl_alive_start(struct iwl_priv
*priv
)
1402 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
1404 /*TODO: this should go to the transport layer */
1405 iwl_reset_ict(priv
);
1407 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
1409 /* After the ALIVE response, we can send host commands to the uCode */
1410 set_bit(STATUS_ALIVE
, &priv
->shrd
->status
);
1412 /* Enable watchdog to monitor the driver tx queues */
1413 iwl_setup_watchdog(priv
);
1415 if (iwl_is_rfkill(priv
))
1418 /* download priority table before any calibration request */
1419 if (priv
->cfg
->bt_params
&&
1420 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
1421 /* Configure Bluetooth device coexistence support */
1422 if (priv
->cfg
->bt_params
->bt_sco_disable
)
1423 priv
->bt_enable_pspoll
= false;
1425 priv
->bt_enable_pspoll
= true;
1427 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
1428 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
1429 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
1430 iwlagn_send_advance_bt_config(priv
);
1431 priv
->bt_valid
= IWLAGN_BT_VALID_ENABLE_FLAGS
;
1432 priv
->cur_rssi_ctx
= NULL
;
1434 iwlagn_send_prio_tbl(priv
);
1436 /* FIXME: w/a to force change uCode BT state machine */
1437 ret
= iwlagn_send_bt_env(priv
, IWL_BT_COEX_ENV_OPEN
,
1438 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
1441 ret
= iwlagn_send_bt_env(priv
, IWL_BT_COEX_ENV_CLOSE
,
1442 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
1447 * default is 2-wire BT coexexistence support
1449 iwl_send_bt_config(priv
);
1452 if (hw_params(priv
).calib_rt_cfg
)
1453 iwlagn_send_calib_cfg_rt(priv
,
1454 hw_params(priv
).calib_rt_cfg
);
1456 ieee80211_wake_queues(priv
->hw
);
1458 priv
->active_rate
= IWL_RATES_MASK
;
1460 /* Configure Tx antenna selection based on H/W config */
1461 iwlagn_send_tx_ant_config(priv
, priv
->cfg
->valid_tx_ant
);
1463 if (iwl_is_associated_ctx(ctx
) && !priv
->shrd
->wowlan
) {
1464 struct iwl_rxon_cmd
*active_rxon
=
1465 (struct iwl_rxon_cmd
*)&ctx
->active
;
1466 /* apply any changes in staging */
1467 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
1468 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1470 struct iwl_rxon_context
*tmp
;
1471 /* Initialize our rx_config data */
1472 for_each_context(priv
, tmp
)
1473 iwl_connection_init_rx_config(priv
, tmp
);
1475 iwlagn_set_rxon_chain(priv
, ctx
);
1478 if (!priv
->shrd
->wowlan
) {
1479 /* WoWLAN ucode will not reply in the same way, skip it */
1480 iwl_reset_run_time_calib(priv
);
1483 set_bit(STATUS_READY
, &priv
->shrd
->status
);
1485 /* Configure the adapter for unassociated operation */
1486 ret
= iwlagn_commit_rxon(priv
, ctx
);
1490 /* At this point, the NIC is initialized and operational */
1491 iwl_rf_kill_ct_config(priv
);
1493 IWL_DEBUG_INFO(priv
, "ALIVE processing complete.\n");
1495 return iwl_power_update_mode(priv
, true);
1498 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
);
1500 static void __iwl_down(struct iwl_priv
*priv
)
1504 IWL_DEBUG_INFO(priv
, DRV_NAME
" is going down\n");
1506 iwl_scan_cancel_timeout(priv
, 200);
1509 * If active, scanning won't cancel it, so say it expired.
1510 * No race since we hold the mutex here and a new one
1511 * can't come in at this time.
1513 ieee80211_remain_on_channel_expired(priv
->hw
);
1516 test_and_set_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
1518 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
1519 * to prevent rearm timer */
1520 del_timer_sync(&priv
->watchdog
);
1522 iwl_clear_ucode_stations(priv
, NULL
);
1523 iwl_dealloc_bcast_stations(priv
);
1524 iwl_clear_driver_stations(priv
);
1526 /* reset BT coex data */
1527 priv
->bt_status
= 0;
1528 priv
->cur_rssi_ctx
= NULL
;
1529 priv
->bt_is_sco
= 0;
1530 if (priv
->cfg
->bt_params
)
1531 priv
->bt_traffic_load
=
1532 priv
->cfg
->bt_params
->bt_init_traffic_load
;
1534 priv
->bt_traffic_load
= 0;
1535 priv
->bt_full_concurrent
= false;
1536 priv
->bt_ci_compliance
= 0;
1538 /* Wipe out the EXIT_PENDING status bit if we are not actually
1539 * exiting the module */
1541 clear_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
1543 if (priv
->mac80211_registered
)
1544 ieee80211_stop_queues(priv
->hw
);
1546 /* Clear out all status bits but a few that are stable across reset */
1547 priv
->shrd
->status
&=
1548 test_bit(STATUS_RF_KILL_HW
, &priv
->shrd
->status
) <<
1550 test_bit(STATUS_GEO_CONFIGURED
, &priv
->shrd
->status
) <<
1551 STATUS_GEO_CONFIGURED
|
1552 test_bit(STATUS_FW_ERROR
, &priv
->shrd
->status
) <<
1554 test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
) <<
1555 STATUS_EXIT_PENDING
;
1557 iwl_trans_stop_device(trans(priv
));
1559 dev_kfree_skb(priv
->beacon_skb
);
1560 priv
->beacon_skb
= NULL
;
1563 static void iwl_down(struct iwl_priv
*priv
)
1565 mutex_lock(&priv
->shrd
->mutex
);
1567 mutex_unlock(&priv
->shrd
->mutex
);
1569 iwl_cancel_deferred_work(priv
);
1572 #define MAX_HW_RESTARTS 5
1574 static int __iwl_up(struct iwl_priv
*priv
)
1576 struct iwl_rxon_context
*ctx
;
1579 lockdep_assert_held(&priv
->shrd
->mutex
);
1581 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
)) {
1582 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
1586 for_each_context(priv
, ctx
) {
1587 ret
= iwlagn_alloc_bcast_station(priv
, ctx
);
1589 iwl_dealloc_bcast_stations(priv
);
1594 ret
= iwlagn_run_init_ucode(priv
);
1596 IWL_ERR(priv
, "Failed to run INIT ucode: %d\n", ret
);
1600 ret
= iwlagn_load_ucode_wait_alive(priv
,
1604 IWL_ERR(priv
, "Failed to start RT ucode: %d\n", ret
);
1608 ret
= iwl_alive_start(priv
);
1614 set_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
1616 clear_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
1618 IWL_ERR(priv
, "Unable to initialize device.\n");
1623 /*****************************************************************************
1625 * Workqueue callbacks
1627 *****************************************************************************/
1629 static void iwl_bg_run_time_calib_work(struct work_struct
*work
)
1631 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
1632 run_time_calib_work
);
1634 mutex_lock(&priv
->shrd
->mutex
);
1636 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
) ||
1637 test_bit(STATUS_SCANNING
, &priv
->shrd
->status
)) {
1638 mutex_unlock(&priv
->shrd
->mutex
);
1642 if (priv
->start_calib
) {
1643 iwl_chain_noise_calibration(priv
);
1644 iwl_sensitivity_calibration(priv
);
1647 mutex_unlock(&priv
->shrd
->mutex
);
1650 static void iwlagn_prepare_restart(struct iwl_priv
*priv
)
1652 struct iwl_rxon_context
*ctx
;
1653 bool bt_full_concurrent
;
1654 u8 bt_ci_compliance
;
1659 lockdep_assert_held(&priv
->shrd
->mutex
);
1661 for_each_context(priv
, ctx
)
1666 * __iwl_down() will clear the BT status variables,
1667 * which is correct, but when we restart we really
1668 * want to keep them so restore them afterwards.
1670 * The restart process will later pick them up and
1671 * re-configure the hw when we reconfigure the BT
1674 bt_full_concurrent
= priv
->bt_full_concurrent
;
1675 bt_ci_compliance
= priv
->bt_ci_compliance
;
1676 bt_load
= priv
->bt_traffic_load
;
1677 bt_status
= priv
->bt_status
;
1678 bt_is_sco
= priv
->bt_is_sco
;
1682 priv
->bt_full_concurrent
= bt_full_concurrent
;
1683 priv
->bt_ci_compliance
= bt_ci_compliance
;
1684 priv
->bt_traffic_load
= bt_load
;
1685 priv
->bt_status
= bt_status
;
1686 priv
->bt_is_sco
= bt_is_sco
;
1689 static void iwl_bg_restart(struct work_struct
*data
)
1691 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
1693 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
1696 if (test_and_clear_bit(STATUS_FW_ERROR
, &priv
->shrd
->status
)) {
1697 mutex_lock(&priv
->shrd
->mutex
);
1698 iwlagn_prepare_restart(priv
);
1699 mutex_unlock(&priv
->shrd
->mutex
);
1700 iwl_cancel_deferred_work(priv
);
1701 ieee80211_restart_hw(priv
->hw
);
1707 /*****************************************************************************
1709 * mac80211 entry point functions
1711 *****************************************************************************/
1713 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits
[] = {
1716 .types
= BIT(NL80211_IFTYPE_STATION
),
1720 .types
= BIT(NL80211_IFTYPE_AP
),
1724 static const struct ieee80211_iface_limit iwlagn_2sta_limits
[] = {
1727 .types
= BIT(NL80211_IFTYPE_STATION
),
1731 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits
[] = {
1734 .types
= BIT(NL80211_IFTYPE_STATION
),
1738 .types
= BIT(NL80211_IFTYPE_P2P_GO
) |
1739 BIT(NL80211_IFTYPE_AP
),
1743 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits
[] = {
1746 .types
= BIT(NL80211_IFTYPE_STATION
),
1750 .types
= BIT(NL80211_IFTYPE_P2P_CLIENT
),
1754 static const struct ieee80211_iface_combination
1755 iwlagn_iface_combinations_dualmode
[] = {
1756 { .num_different_channels
= 1,
1757 .max_interfaces
= 2,
1758 .beacon_int_infra_match
= true,
1759 .limits
= iwlagn_sta_ap_limits
,
1760 .n_limits
= ARRAY_SIZE(iwlagn_sta_ap_limits
),
1762 { .num_different_channels
= 1,
1763 .max_interfaces
= 2,
1764 .limits
= iwlagn_2sta_limits
,
1765 .n_limits
= ARRAY_SIZE(iwlagn_2sta_limits
),
1769 static const struct ieee80211_iface_combination
1770 iwlagn_iface_combinations_p2p
[] = {
1771 { .num_different_channels
= 1,
1772 .max_interfaces
= 2,
1773 .beacon_int_infra_match
= true,
1774 .limits
= iwlagn_p2p_sta_go_limits
,
1775 .n_limits
= ARRAY_SIZE(iwlagn_p2p_sta_go_limits
),
1777 { .num_different_channels
= 1,
1778 .max_interfaces
= 2,
1779 .limits
= iwlagn_p2p_2sta_limits
,
1780 .n_limits
= ARRAY_SIZE(iwlagn_p2p_2sta_limits
),
1785 * Not a mac80211 entry point function, but it fits in with all the
1786 * other mac80211 functions grouped here.
1788 static int iwl_mac_setup_register(struct iwl_priv
*priv
,
1789 struct iwlagn_ucode_capabilities
*capa
)
1792 struct ieee80211_hw
*hw
= priv
->hw
;
1793 struct iwl_rxon_context
*ctx
;
1795 hw
->rate_control_algorithm
= "iwl-agn-rs";
1797 /* Tell mac80211 our characteristics */
1798 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
1799 IEEE80211_HW_AMPDU_AGGREGATION
|
1800 IEEE80211_HW_NEED_DTIM_PERIOD
|
1801 IEEE80211_HW_SPECTRUM_MGMT
|
1802 IEEE80211_HW_REPORTS_TX_ACK_STATUS
;
1804 hw
->max_tx_aggregation_subframes
= LINK_QUAL_AGG_FRAME_LIMIT_DEF
;
1806 hw
->flags
|= IEEE80211_HW_SUPPORTS_PS
|
1807 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
;
1809 if (priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
)
1810 hw
->flags
|= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
1811 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
1813 if (capa
->flags
& IWL_UCODE_TLV_FLAGS_MFP
)
1814 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
1816 hw
->sta_data_size
= sizeof(struct iwl_station_priv
);
1817 hw
->vif_data_size
= sizeof(struct iwl_vif_priv
);
1819 for_each_context(priv
, ctx
) {
1820 hw
->wiphy
->interface_modes
|= ctx
->interface_modes
;
1821 hw
->wiphy
->interface_modes
|= ctx
->exclusive_interface_modes
;
1824 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
1826 if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)) {
1827 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_p2p
;
1828 hw
->wiphy
->n_iface_combinations
=
1829 ARRAY_SIZE(iwlagn_iface_combinations_p2p
);
1830 } else if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_AP
)) {
1831 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_dualmode
;
1832 hw
->wiphy
->n_iface_combinations
=
1833 ARRAY_SIZE(iwlagn_iface_combinations_dualmode
);
1836 hw
->wiphy
->max_remain_on_channel_duration
= 1000;
1838 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
|
1839 WIPHY_FLAG_DISABLE_BEACON_HINTS
|
1840 WIPHY_FLAG_IBSS_RSN
;
1842 if (priv
->ucode_wowlan
.code
.len
&& device_can_wakeup(priv
->bus
->dev
)) {
1843 hw
->wiphy
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
1844 WIPHY_WOWLAN_DISCONNECT
|
1845 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
1846 WIPHY_WOWLAN_RFKILL_RELEASE
;
1847 if (!iwlagn_mod_params
.sw_crypto
)
1848 hw
->wiphy
->wowlan
.flags
|=
1849 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
1850 WIPHY_WOWLAN_GTK_REKEY_FAILURE
;
1852 hw
->wiphy
->wowlan
.n_patterns
= IWLAGN_WOWLAN_MAX_PATTERNS
;
1853 hw
->wiphy
->wowlan
.pattern_min_len
=
1854 IWLAGN_WOWLAN_MIN_PATTERN_LEN
;
1855 hw
->wiphy
->wowlan
.pattern_max_len
=
1856 IWLAGN_WOWLAN_MAX_PATTERN_LEN
;
1859 if (iwlagn_mod_params
.power_save
)
1860 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
1862 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
1864 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
1865 /* we create the 802.11 header and a zero-length SSID element */
1866 hw
->wiphy
->max_scan_ie_len
= capa
->max_probe_length
- 24 - 2;
1868 /* Default value; 4 EDCA QOS priorities */
1871 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
1873 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
1874 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
1875 &priv
->bands
[IEEE80211_BAND_2GHZ
];
1876 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
1877 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
1878 &priv
->bands
[IEEE80211_BAND_5GHZ
];
1880 iwl_leds_init(priv
);
1882 ret
= ieee80211_register_hw(priv
->hw
);
1884 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
1887 priv
->mac80211_registered
= 1;
1893 static int iwlagn_mac_start(struct ieee80211_hw
*hw
)
1895 struct iwl_priv
*priv
= hw
->priv
;
1898 IWL_DEBUG_MAC80211(priv
, "enter\n");
1900 /* we should be verifying the device is ready to be opened */
1901 mutex_lock(&priv
->shrd
->mutex
);
1902 ret
= __iwl_up(priv
);
1903 mutex_unlock(&priv
->shrd
->mutex
);
1907 IWL_DEBUG_INFO(priv
, "Start UP work done.\n");
1909 /* Now we should be done, and the READY bit should be set. */
1910 if (WARN_ON(!test_bit(STATUS_READY
, &priv
->shrd
->status
)))
1913 iwlagn_led_enable(priv
);
1916 IWL_DEBUG_MAC80211(priv
, "leave\n");
1920 static void iwlagn_mac_stop(struct ieee80211_hw
*hw
)
1922 struct iwl_priv
*priv
= hw
->priv
;
1924 IWL_DEBUG_MAC80211(priv
, "enter\n");
1933 flush_workqueue(priv
->shrd
->workqueue
);
1935 /* User space software may expect getting rfkill changes
1936 * even if interface is down */
1937 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
1938 iwl_enable_rfkill_int(priv
);
1940 IWL_DEBUG_MAC80211(priv
, "leave\n");
1944 static int iwlagn_send_patterns(struct iwl_priv
*priv
,
1945 struct cfg80211_wowlan
*wowlan
)
1947 struct iwlagn_wowlan_patterns_cmd
*pattern_cmd
;
1948 struct iwl_host_cmd cmd
= {
1949 .id
= REPLY_WOWLAN_PATTERNS
,
1950 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
1955 if (!wowlan
->n_patterns
)
1958 cmd
.len
[0] = sizeof(*pattern_cmd
) +
1959 wowlan
->n_patterns
* sizeof(struct iwlagn_wowlan_pattern
);
1961 pattern_cmd
= kmalloc(cmd
.len
[0], GFP_KERNEL
);
1965 pattern_cmd
->n_patterns
= cpu_to_le32(wowlan
->n_patterns
);
1967 for (i
= 0; i
< wowlan
->n_patterns
; i
++) {
1968 int mask_len
= DIV_ROUND_UP(wowlan
->patterns
[i
].pattern_len
, 8);
1970 memcpy(&pattern_cmd
->patterns
[i
].mask
,
1971 wowlan
->patterns
[i
].mask
, mask_len
);
1972 memcpy(&pattern_cmd
->patterns
[i
].pattern
,
1973 wowlan
->patterns
[i
].pattern
,
1974 wowlan
->patterns
[i
].pattern_len
);
1975 pattern_cmd
->patterns
[i
].mask_size
= mask_len
;
1976 pattern_cmd
->patterns
[i
].pattern_size
=
1977 wowlan
->patterns
[i
].pattern_len
;
1980 cmd
.data
[0] = pattern_cmd
;
1981 err
= iwl_trans_send_cmd(trans(priv
), &cmd
);
1987 static void iwlagn_mac_set_rekey_data(struct ieee80211_hw
*hw
,
1988 struct ieee80211_vif
*vif
,
1989 struct cfg80211_gtk_rekey_data
*data
)
1991 struct iwl_priv
*priv
= hw
->priv
;
1993 if (iwlagn_mod_params
.sw_crypto
)
1996 mutex_lock(&priv
->shrd
->mutex
);
1998 if (priv
->contexts
[IWL_RXON_CTX_BSS
].vif
!= vif
)
2001 memcpy(priv
->kek
, data
->kek
, NL80211_KEK_LEN
);
2002 memcpy(priv
->kck
, data
->kck
, NL80211_KCK_LEN
);
2003 priv
->replay_ctr
= cpu_to_le64(be64_to_cpup((__be64
*)&data
->replay_ctr
));
2004 priv
->have_rekey_data
= true;
2007 mutex_unlock(&priv
->shrd
->mutex
);
2010 struct wowlan_key_data
{
2011 struct iwl_rxon_context
*ctx
;
2012 struct iwlagn_wowlan_rsc_tsc_params_cmd
*rsc_tsc
;
2013 struct iwlagn_wowlan_tkip_params_cmd
*tkip
;
2015 bool error
, use_rsc_tsc
, use_tkip
;
2019 static void iwlagn_convert_p1k(u16
*p1k
, __le16
*out
)
2023 for (i
= 0; i
< IWLAGN_P1K_SIZE
; i
++)
2024 out
[i
] = cpu_to_le16(p1k
[i
]);
2027 static void iwlagn_wowlan_program_keys(struct ieee80211_hw
*hw
,
2028 struct ieee80211_vif
*vif
,
2029 struct ieee80211_sta
*sta
,
2030 struct ieee80211_key_conf
*key
,
2033 struct iwl_priv
*priv
= hw
->priv
;
2034 struct wowlan_key_data
*data
= _data
;
2035 struct iwl_rxon_context
*ctx
= data
->ctx
;
2036 struct aes_sc
*aes_sc
, *aes_tx_sc
= NULL
;
2037 struct tkip_sc
*tkip_sc
, *tkip_tx_sc
= NULL
;
2038 struct iwlagn_p1k_cache
*rx_p1ks
;
2040 struct ieee80211_key_seq seq
;
2041 u32 cur_rx_iv32
= 0;
2042 u16 p1k
[IWLAGN_P1K_SIZE
];
2045 mutex_lock(&priv
->shrd
->mutex
);
2047 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
2048 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) &&
2049 !sta
&& !ctx
->key_mapping_keys
)
2050 ret
= iwl_set_default_wep_key(priv
, ctx
, key
);
2052 ret
= iwl_set_dynamic_key(priv
, ctx
, key
, sta
);
2055 IWL_ERR(priv
, "Error setting key during suspend!\n");
2059 switch (key
->cipher
) {
2060 case WLAN_CIPHER_SUITE_TKIP
:
2062 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.unicast_rsc
;
2063 tkip_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.tkip
.tsc
;
2065 rx_p1ks
= data
->tkip
->rx_uni
;
2067 ieee80211_get_key_tx_seq(key
, &seq
);
2068 tkip_tx_sc
->iv16
= cpu_to_le16(seq
.tkip
.iv16
);
2069 tkip_tx_sc
->iv32
= cpu_to_le32(seq
.tkip
.iv32
);
2071 ieee80211_get_tkip_p1k_iv(key
, seq
.tkip
.iv32
, p1k
);
2072 iwlagn_convert_p1k(p1k
, data
->tkip
->tx
.p1k
);
2074 memcpy(data
->tkip
->mic_keys
.tx
,
2075 &key
->key
[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY
],
2076 IWLAGN_MIC_KEY_SIZE
);
2078 rx_mic_key
= data
->tkip
->mic_keys
.rx_unicast
;
2080 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.multicast_rsc
;
2081 rx_p1ks
= data
->tkip
->rx_multi
;
2082 rx_mic_key
= data
->tkip
->mic_keys
.rx_mcast
;
2086 * For non-QoS this relies on the fact that both the uCode and
2087 * mac80211 use TID 0 (as they need to to avoid replay attacks)
2088 * for checking the IV in the frames.
2090 for (i
= 0; i
< IWLAGN_NUM_RSC
; i
++) {
2091 ieee80211_get_key_rx_seq(key
, i
, &seq
);
2092 tkip_sc
[i
].iv16
= cpu_to_le16(seq
.tkip
.iv16
);
2093 tkip_sc
[i
].iv32
= cpu_to_le32(seq
.tkip
.iv32
);
2094 /* wrapping isn't allowed, AP must rekey */
2095 if (seq
.tkip
.iv32
> cur_rx_iv32
)
2096 cur_rx_iv32
= seq
.tkip
.iv32
;
2099 ieee80211_get_tkip_rx_p1k(key
, data
->bssid
, cur_rx_iv32
, p1k
);
2100 iwlagn_convert_p1k(p1k
, rx_p1ks
[0].p1k
);
2101 ieee80211_get_tkip_rx_p1k(key
, data
->bssid
,
2102 cur_rx_iv32
+ 1, p1k
);
2103 iwlagn_convert_p1k(p1k
, rx_p1ks
[1].p1k
);
2106 &key
->key
[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
],
2107 IWLAGN_MIC_KEY_SIZE
);
2109 data
->use_tkip
= true;
2110 data
->use_rsc_tsc
= true;
2112 case WLAN_CIPHER_SUITE_CCMP
:
2114 u8
*pn
= seq
.ccmp
.pn
;
2116 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.unicast_rsc
;
2117 aes_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.aes
.tsc
;
2119 ieee80211_get_key_tx_seq(key
, &seq
);
2120 aes_tx_sc
->pn
= cpu_to_le64(
2123 ((u64
)pn
[3] << 16) |
2124 ((u64
)pn
[2] << 24) |
2125 ((u64
)pn
[1] << 32) |
2126 ((u64
)pn
[0] << 40));
2128 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.multicast_rsc
;
2131 * For non-QoS this relies on the fact that both the uCode and
2132 * mac80211 use TID 0 for checking the IV in the frames.
2134 for (i
= 0; i
< IWLAGN_NUM_RSC
; i
++) {
2135 u8
*pn
= seq
.ccmp
.pn
;
2137 ieee80211_get_key_rx_seq(key
, i
, &seq
);
2138 aes_sc
->pn
= cpu_to_le64(
2141 ((u64
)pn
[3] << 16) |
2142 ((u64
)pn
[2] << 24) |
2143 ((u64
)pn
[1] << 32) |
2144 ((u64
)pn
[0] << 40));
2146 data
->use_rsc_tsc
= true;
2150 mutex_unlock(&priv
->shrd
->mutex
);
2153 static int iwlagn_mac_suspend(struct ieee80211_hw
*hw
,
2154 struct cfg80211_wowlan
*wowlan
)
2156 struct iwl_priv
*priv
= hw
->priv
;
2157 struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd
;
2158 struct iwl_rxon_cmd rxon
;
2159 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2160 struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd
;
2161 struct iwlagn_wowlan_tkip_params_cmd tkip_cmd
= {};
2162 struct wowlan_key_data key_data
= {
2164 .bssid
= ctx
->active
.bssid_addr
,
2165 .use_rsc_tsc
= false,
2172 if (WARN_ON(!wowlan
))
2175 mutex_lock(&priv
->shrd
->mutex
);
2177 /* Don't attempt WoWLAN when not associated, tear down instead. */
2178 if (!ctx
->vif
|| ctx
->vif
->type
!= NL80211_IFTYPE_STATION
||
2179 !iwl_is_associated_ctx(ctx
)) {
2184 key_data
.rsc_tsc
= kzalloc(sizeof(*key_data
.rsc_tsc
), GFP_KERNEL
);
2185 if (!key_data
.rsc_tsc
) {
2190 memset(&wakeup_filter_cmd
, 0, sizeof(wakeup_filter_cmd
));
2193 * We know the last used seqno, and the uCode expects to know that
2194 * one, it will increment before TX.
2196 seq
= le16_to_cpu(priv
->last_seq_ctl
) & IEEE80211_SCTL_SEQ
;
2197 wakeup_filter_cmd
.non_qos_seq
= cpu_to_le16(seq
);
2200 * For QoS counters, we store the one to use next, so subtract 0x10
2201 * since the uCode will add 0x10 before using the value.
2203 for (i
= 0; i
< 8; i
++) {
2204 seq
= priv
->stations
[IWL_AP_ID
].tid
[i
].seq_number
;
2206 wakeup_filter_cmd
.qos_seq
[i
] = cpu_to_le16(seq
);
2209 if (wowlan
->disconnect
)
2210 wakeup_filter_cmd
.enabled
|=
2211 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS
|
2212 IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE
);
2213 if (wowlan
->magic_pkt
)
2214 wakeup_filter_cmd
.enabled
|=
2215 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET
);
2216 if (wowlan
->gtk_rekey_failure
)
2217 wakeup_filter_cmd
.enabled
|=
2218 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL
);
2219 if (wowlan
->eap_identity_req
)
2220 wakeup_filter_cmd
.enabled
|=
2221 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ
);
2222 if (wowlan
->four_way_handshake
)
2223 wakeup_filter_cmd
.enabled
|=
2224 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE
);
2225 if (wowlan
->rfkill_release
)
2226 wakeup_filter_cmd
.enabled
|=
2227 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_RFKILL
);
2228 if (wowlan
->n_patterns
)
2229 wakeup_filter_cmd
.enabled
|=
2230 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH
);
2232 iwl_scan_cancel_timeout(priv
, 200);
2234 memcpy(&rxon
, &ctx
->active
, sizeof(rxon
));
2236 iwl_trans_stop_device(trans(priv
));
2238 priv
->shrd
->wowlan
= true;
2240 ret
= iwlagn_load_ucode_wait_alive(priv
, &priv
->ucode_wowlan
,
2245 /* now configure WoWLAN ucode */
2246 ret
= iwl_alive_start(priv
);
2250 memcpy(&ctx
->staging
, &rxon
, sizeof(rxon
));
2251 ret
= iwlagn_commit_rxon(priv
, ctx
);
2255 ret
= iwl_power_update_mode(priv
, true);
2259 if (!iwlagn_mod_params
.sw_crypto
) {
2260 /* mark all keys clear */
2261 priv
->ucode_key_table
= 0;
2262 ctx
->key_mapping_keys
= 0;
2265 * This needs to be unlocked due to lock ordering
2266 * constraints. Since we're in the suspend path
2267 * that isn't really a problem though.
2269 mutex_unlock(&priv
->shrd
->mutex
);
2270 ieee80211_iter_keys(priv
->hw
, ctx
->vif
,
2271 iwlagn_wowlan_program_keys
,
2273 mutex_lock(&priv
->shrd
->mutex
);
2274 if (key_data
.error
) {
2279 if (key_data
.use_rsc_tsc
) {
2280 struct iwl_host_cmd rsc_tsc_cmd
= {
2281 .id
= REPLY_WOWLAN_TSC_RSC_PARAMS
,
2283 .data
[0] = key_data
.rsc_tsc
,
2284 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
2285 .len
[0] = sizeof(*key_data
.rsc_tsc
),
2288 ret
= iwl_trans_send_cmd(trans(priv
), &rsc_tsc_cmd
);
2293 if (key_data
.use_tkip
) {
2294 ret
= iwl_trans_send_cmd_pdu(trans(priv
),
2295 REPLY_WOWLAN_TKIP_PARAMS
,
2296 CMD_SYNC
, sizeof(tkip_cmd
),
2302 if (priv
->have_rekey_data
) {
2303 memset(&kek_kck_cmd
, 0, sizeof(kek_kck_cmd
));
2304 memcpy(kek_kck_cmd
.kck
, priv
->kck
, NL80211_KCK_LEN
);
2305 kek_kck_cmd
.kck_len
= cpu_to_le16(NL80211_KCK_LEN
);
2306 memcpy(kek_kck_cmd
.kek
, priv
->kek
, NL80211_KEK_LEN
);
2307 kek_kck_cmd
.kek_len
= cpu_to_le16(NL80211_KEK_LEN
);
2308 kek_kck_cmd
.replay_ctr
= priv
->replay_ctr
;
2310 ret
= iwl_trans_send_cmd_pdu(trans(priv
),
2311 REPLY_WOWLAN_KEK_KCK_MATERIAL
,
2312 CMD_SYNC
, sizeof(kek_kck_cmd
),
2319 ret
= iwl_trans_send_cmd_pdu(trans(priv
), REPLY_WOWLAN_WAKEUP_FILTER
,
2320 CMD_SYNC
, sizeof(wakeup_filter_cmd
),
2321 &wakeup_filter_cmd
);
2325 ret
= iwlagn_send_patterns(priv
, wowlan
);
2329 device_set_wakeup_enable(priv
->bus
->dev
, true);
2331 /* Now let the ucode operate on its own */
2332 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2333 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE
);
2338 priv
->shrd
->wowlan
= false;
2339 iwlagn_prepare_restart(priv
);
2340 ieee80211_restart_hw(priv
->hw
);
2342 mutex_unlock(&priv
->shrd
->mutex
);
2343 kfree(key_data
.rsc_tsc
);
2347 static int iwlagn_mac_resume(struct ieee80211_hw
*hw
)
2349 struct iwl_priv
*priv
= hw
->priv
;
2350 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2351 struct ieee80211_vif
*vif
;
2352 unsigned long flags
;
2353 u32 base
, status
= 0xffffffff;
2356 mutex_lock(&priv
->shrd
->mutex
);
2358 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
2359 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE
);
2361 base
= priv
->device_pointers
.error_event_table
;
2362 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
2363 spin_lock_irqsave(&priv
->reg_lock
, flags
);
2364 ret
= iwl_grab_nic_access_silent(priv
);
2366 iwl_write32(priv
, HBUS_TARG_MEM_RADDR
, base
);
2367 status
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
2368 iwl_release_nic_access(priv
);
2370 spin_unlock_irqrestore(&priv
->reg_lock
, flags
);
2372 #ifdef CONFIG_IWLWIFI_DEBUGFS
2374 if (!priv
->wowlan_sram
)
2376 kzalloc(priv
->ucode_wowlan
.data
.len
,
2379 if (priv
->wowlan_sram
)
2380 _iwl_read_targ_mem_words(
2381 priv
, 0x800000, priv
->wowlan_sram
,
2382 priv
->ucode_wowlan
.data
.len
/ 4);
2387 /* we'll clear ctx->vif during iwlagn_prepare_restart() */
2390 priv
->shrd
->wowlan
= false;
2392 device_set_wakeup_enable(priv
->bus
->dev
, false);
2394 iwlagn_prepare_restart(priv
);
2396 memset((void *)&ctx
->active
, 0, sizeof(ctx
->active
));
2397 iwl_connection_init_rx_config(priv
, ctx
);
2398 iwlagn_set_rxon_chain(priv
, ctx
);
2400 mutex_unlock(&priv
->shrd
->mutex
);
2402 ieee80211_resume_disconnect(vif
);
2408 static void iwlagn_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
2410 struct iwl_priv
*priv
= hw
->priv
;
2412 IWL_DEBUG_MACDUMP(priv
, "enter\n");
2414 IWL_DEBUG_TX(priv
, "dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
2415 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
2417 if (iwlagn_tx_skb(priv
, skb
))
2418 dev_kfree_skb_any(skb
);
2420 IWL_DEBUG_MACDUMP(priv
, "leave\n");
2423 static void iwlagn_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2424 struct ieee80211_vif
*vif
,
2425 struct ieee80211_key_conf
*keyconf
,
2426 struct ieee80211_sta
*sta
,
2427 u32 iv32
, u16
*phase1key
)
2429 struct iwl_priv
*priv
= hw
->priv
;
2431 iwl_update_tkip_key(priv
, vif
, keyconf
, sta
, iv32
, phase1key
);
2434 static int iwlagn_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
2435 struct ieee80211_vif
*vif
,
2436 struct ieee80211_sta
*sta
,
2437 struct ieee80211_key_conf
*key
)
2439 struct iwl_priv
*priv
= hw
->priv
;
2440 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2441 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
2443 bool is_default_wep_key
= false;
2445 IWL_DEBUG_MAC80211(priv
, "enter\n");
2447 if (iwlagn_mod_params
.sw_crypto
) {
2448 IWL_DEBUG_MAC80211(priv
, "leave - hwcrypto disabled\n");
2453 * We could program these keys into the hardware as well, but we
2454 * don't expect much multicast traffic in IBSS and having keys
2455 * for more stations is probably more useful.
2457 * Mark key TX-only and return 0.
2459 if (vif
->type
== NL80211_IFTYPE_ADHOC
&&
2460 !(key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)) {
2461 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
2465 /* If they key was TX-only, accept deletion */
2466 if (cmd
== DISABLE_KEY
&& key
->hw_key_idx
== WEP_INVALID_OFFSET
)
2469 mutex_lock(&priv
->shrd
->mutex
);
2470 iwl_scan_cancel_timeout(priv
, 100);
2472 BUILD_BUG_ON(WEP_INVALID_OFFSET
== IWLAGN_HW_KEY_DEFAULT
);
2475 * If we are getting WEP group key and we didn't receive any key mapping
2476 * so far, we are in legacy wep mode (group key only), otherwise we are
2478 * In legacy wep mode, we use another host command to the uCode.
2480 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
2481 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) && !sta
) {
2483 is_default_wep_key
= !ctx
->key_mapping_keys
;
2485 is_default_wep_key
=
2486 key
->hw_key_idx
== IWLAGN_HW_KEY_DEFAULT
;
2492 if (is_default_wep_key
) {
2493 ret
= iwl_set_default_wep_key(priv
, vif_priv
->ctx
, key
);
2496 ret
= iwl_set_dynamic_key(priv
, vif_priv
->ctx
, key
, sta
);
2499 * can't add key for RX, but we don't need it
2500 * in the device for TX so still return 0
2503 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
2506 IWL_DEBUG_MAC80211(priv
, "enable hwcrypto key\n");
2509 if (is_default_wep_key
)
2510 ret
= iwl_remove_default_wep_key(priv
, ctx
, key
);
2512 ret
= iwl_remove_dynamic_key(priv
, ctx
, key
, sta
);
2514 IWL_DEBUG_MAC80211(priv
, "disable hwcrypto key\n");
2520 mutex_unlock(&priv
->shrd
->mutex
);
2521 IWL_DEBUG_MAC80211(priv
, "leave\n");
2526 static int iwlagn_mac_ampdu_action(struct ieee80211_hw
*hw
,
2527 struct ieee80211_vif
*vif
,
2528 enum ieee80211_ampdu_mlme_action action
,
2529 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
2532 struct iwl_priv
*priv
= hw
->priv
;
2534 struct iwl_station_priv
*sta_priv
= (void *) sta
->drv_priv
;
2536 IWL_DEBUG_HT(priv
, "A-MPDU action on addr %pM tid %d\n",
2539 if (!(priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
))
2542 mutex_lock(&priv
->shrd
->mutex
);
2545 case IEEE80211_AMPDU_RX_START
:
2546 IWL_DEBUG_HT(priv
, "start Rx\n");
2547 ret
= iwl_sta_rx_agg_start(priv
, sta
, tid
, *ssn
);
2549 case IEEE80211_AMPDU_RX_STOP
:
2550 IWL_DEBUG_HT(priv
, "stop Rx\n");
2551 ret
= iwl_sta_rx_agg_stop(priv
, sta
, tid
);
2552 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
2555 case IEEE80211_AMPDU_TX_START
:
2556 IWL_DEBUG_HT(priv
, "start Tx\n");
2557 ret
= iwlagn_tx_agg_start(priv
, vif
, sta
, tid
, ssn
);
2559 priv
->agg_tids_count
++;
2560 IWL_DEBUG_HT(priv
, "priv->agg_tids_count = %u\n",
2561 priv
->agg_tids_count
);
2564 case IEEE80211_AMPDU_TX_STOP
:
2565 IWL_DEBUG_HT(priv
, "stop Tx\n");
2566 ret
= iwlagn_tx_agg_stop(priv
, vif
, sta
, tid
);
2567 if ((ret
== 0) && (priv
->agg_tids_count
> 0)) {
2568 priv
->agg_tids_count
--;
2569 IWL_DEBUG_HT(priv
, "priv->agg_tids_count = %u\n",
2570 priv
->agg_tids_count
);
2572 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
2574 if (priv
->cfg
->ht_params
&&
2575 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
2577 * switch off RTS/CTS if it was previously enabled
2579 sta_priv
->lq_sta
.lq
.general_params
.flags
&=
2580 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
2581 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
2582 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
2585 case IEEE80211_AMPDU_TX_OPERATIONAL
:
2586 buf_size
= min_t(int, buf_size
, LINK_QUAL_AGG_FRAME_LIMIT_DEF
);
2588 iwl_trans_txq_agg_setup(trans(priv
), iwl_sta_id(sta
), tid
,
2592 * If the limit is 0, then it wasn't initialised yet,
2593 * use the default. We can do that since we take the
2594 * minimum below, and we don't want to go above our
2595 * default due to hardware restrictions.
2597 if (sta_priv
->max_agg_bufsize
== 0)
2598 sta_priv
->max_agg_bufsize
=
2599 LINK_QUAL_AGG_FRAME_LIMIT_DEF
;
2602 * Even though in theory the peer could have different
2603 * aggregation reorder buffer sizes for different sessions,
2604 * our ucode doesn't allow for that and has a global limit
2605 * for each station. Therefore, use the minimum of all the
2606 * aggregation sessions and our default value.
2608 sta_priv
->max_agg_bufsize
=
2609 min(sta_priv
->max_agg_bufsize
, buf_size
);
2611 if (priv
->cfg
->ht_params
&&
2612 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
2614 * switch to RTS/CTS if it is the prefer protection
2615 * method for HT traffic
2618 sta_priv
->lq_sta
.lq
.general_params
.flags
|=
2619 LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
2622 sta_priv
->lq_sta
.lq
.agg_params
.agg_frame_cnt_limit
=
2623 sta_priv
->max_agg_bufsize
;
2625 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
2626 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
2628 IWL_INFO(priv
, "Tx aggregation enabled on ra = %pM tid = %d\n",
2633 mutex_unlock(&priv
->shrd
->mutex
);
2638 static int iwlagn_mac_sta_add(struct ieee80211_hw
*hw
,
2639 struct ieee80211_vif
*vif
,
2640 struct ieee80211_sta
*sta
)
2642 struct iwl_priv
*priv
= hw
->priv
;
2643 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
2644 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2645 bool is_ap
= vif
->type
== NL80211_IFTYPE_STATION
;
2649 IWL_DEBUG_INFO(priv
, "received request to add station %pM\n",
2651 mutex_lock(&priv
->shrd
->mutex
);
2652 IWL_DEBUG_INFO(priv
, "proceeding to add station %pM\n",
2654 sta_priv
->common
.sta_id
= IWL_INVALID_STATION
;
2656 atomic_set(&sta_priv
->pending_frames
, 0);
2657 if (vif
->type
== NL80211_IFTYPE_AP
)
2658 sta_priv
->client
= true;
2660 ret
= iwl_add_station_common(priv
, vif_priv
->ctx
, sta
->addr
,
2661 is_ap
, sta
, &sta_id
);
2663 IWL_ERR(priv
, "Unable to add station %pM (%d)\n",
2665 /* Should we return success if return code is EEXIST ? */
2666 mutex_unlock(&priv
->shrd
->mutex
);
2670 sta_priv
->common
.sta_id
= sta_id
;
2672 /* Initialize rate scaling */
2673 IWL_DEBUG_INFO(priv
, "Initializing rate scaling for station %pM\n",
2675 iwl_rs_rate_init(priv
, sta
, sta_id
);
2676 mutex_unlock(&priv
->shrd
->mutex
);
2681 static void iwlagn_mac_channel_switch(struct ieee80211_hw
*hw
,
2682 struct ieee80211_channel_switch
*ch_switch
)
2684 struct iwl_priv
*priv
= hw
->priv
;
2685 const struct iwl_channel_info
*ch_info
;
2686 struct ieee80211_conf
*conf
= &hw
->conf
;
2687 struct ieee80211_channel
*channel
= ch_switch
->channel
;
2688 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
2691 * When we add support for multiple interfaces, we need to
2692 * revisit this. The channel switch command in the device
2693 * only affects the BSS context, but what does that really
2694 * mean? And what if we get a CSA on the second interface?
2695 * This needs a lot of work.
2697 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2700 IWL_DEBUG_MAC80211(priv
, "enter\n");
2702 mutex_lock(&priv
->shrd
->mutex
);
2704 if (iwl_is_rfkill(priv
))
2707 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
) ||
2708 test_bit(STATUS_SCANNING
, &priv
->shrd
->status
) ||
2709 test_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
))
2712 if (!iwl_is_associated_ctx(ctx
))
2715 if (!priv
->cfg
->lib
->set_channel_switch
)
2718 ch
= channel
->hw_value
;
2719 if (le16_to_cpu(ctx
->active
.channel
) == ch
)
2722 ch_info
= iwl_get_channel_info(priv
, channel
->band
, ch
);
2723 if (!is_channel_valid(ch_info
)) {
2724 IWL_DEBUG_MAC80211(priv
, "invalid channel\n");
2728 spin_lock_irq(&priv
->shrd
->lock
);
2730 priv
->current_ht_config
.smps
= conf
->smps_mode
;
2732 /* Configure HT40 channels */
2733 ctx
->ht
.enabled
= conf_is_ht(conf
);
2734 if (ctx
->ht
.enabled
) {
2735 if (conf_is_ht40_minus(conf
)) {
2736 ctx
->ht
.extension_chan_offset
=
2737 IEEE80211_HT_PARAM_CHA_SEC_BELOW
;
2738 ctx
->ht
.is_40mhz
= true;
2739 } else if (conf_is_ht40_plus(conf
)) {
2740 ctx
->ht
.extension_chan_offset
=
2741 IEEE80211_HT_PARAM_CHA_SEC_ABOVE
;
2742 ctx
->ht
.is_40mhz
= true;
2744 ctx
->ht
.extension_chan_offset
=
2745 IEEE80211_HT_PARAM_CHA_SEC_NONE
;
2746 ctx
->ht
.is_40mhz
= false;
2749 ctx
->ht
.is_40mhz
= false;
2751 if ((le16_to_cpu(ctx
->staging
.channel
) != ch
))
2752 ctx
->staging
.flags
= 0;
2754 iwl_set_rxon_channel(priv
, channel
, ctx
);
2755 iwl_set_rxon_ht(priv
, ht_conf
);
2756 iwl_set_flags_for_band(priv
, ctx
, channel
->band
, ctx
->vif
);
2758 spin_unlock_irq(&priv
->shrd
->lock
);
2762 * at this point, staging_rxon has the
2763 * configuration for channel switch
2765 set_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
);
2766 priv
->switch_channel
= cpu_to_le16(ch
);
2767 if (priv
->cfg
->lib
->set_channel_switch(priv
, ch_switch
)) {
2768 clear_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
);
2769 priv
->switch_channel
= 0;
2770 ieee80211_chswitch_done(ctx
->vif
, false);
2774 mutex_unlock(&priv
->shrd
->mutex
);
2775 IWL_DEBUG_MAC80211(priv
, "leave\n");
2778 static void iwlagn_configure_filter(struct ieee80211_hw
*hw
,
2779 unsigned int changed_flags
,
2780 unsigned int *total_flags
,
2783 struct iwl_priv
*priv
= hw
->priv
;
2784 __le32 filter_or
= 0, filter_nand
= 0;
2785 struct iwl_rxon_context
*ctx
;
2787 #define CHK(test, flag) do { \
2788 if (*total_flags & (test)) \
2789 filter_or |= (flag); \
2791 filter_nand |= (flag); \
2794 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
2795 changed_flags
, *total_flags
);
2797 CHK(FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
, RXON_FILTER_PROMISC_MSK
);
2798 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
2799 CHK(FIF_CONTROL
, RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_PROMISC_MSK
);
2800 CHK(FIF_BCN_PRBRESP_PROMISC
, RXON_FILTER_BCON_AWARE_MSK
);
2804 mutex_lock(&priv
->shrd
->mutex
);
2806 for_each_context(priv
, ctx
) {
2807 ctx
->staging
.filter_flags
&= ~filter_nand
;
2808 ctx
->staging
.filter_flags
|= filter_or
;
2811 * Not committing directly because hardware can perform a scan,
2812 * but we'll eventually commit the filter flags change anyway.
2816 mutex_unlock(&priv
->shrd
->mutex
);
2819 * Receiving all multicast frames is always enabled by the
2820 * default flags setup in iwl_connection_init_rx_config()
2821 * since we currently do not support programming multicast
2822 * filters into the device.
2824 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
2825 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
2828 static void iwlagn_mac_flush(struct ieee80211_hw
*hw
, bool drop
)
2830 struct iwl_priv
*priv
= hw
->priv
;
2832 mutex_lock(&priv
->shrd
->mutex
);
2833 IWL_DEBUG_MAC80211(priv
, "enter\n");
2835 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
)) {
2836 IWL_DEBUG_TX(priv
, "Aborting flush due to device shutdown\n");
2839 if (iwl_is_rfkill(priv
)) {
2840 IWL_DEBUG_TX(priv
, "Aborting flush due to RF Kill\n");
2845 * mac80211 will not push any more frames for transmit
2846 * until the flush is completed
2849 IWL_DEBUG_MAC80211(priv
, "send flush command\n");
2850 if (iwlagn_txfifo_flush(priv
, IWL_DROP_ALL
)) {
2851 IWL_ERR(priv
, "flush request fail\n");
2855 IWL_DEBUG_MAC80211(priv
, "wait transmit/flush all frames\n");
2856 iwlagn_wait_tx_queue_empty(priv
);
2858 mutex_unlock(&priv
->shrd
->mutex
);
2859 IWL_DEBUG_MAC80211(priv
, "leave\n");
2862 void iwlagn_disable_roc(struct iwl_priv
*priv
)
2864 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
2866 lockdep_assert_held(&priv
->shrd
->mutex
);
2868 if (!priv
->hw_roc_setup
)
2871 ctx
->staging
.dev_type
= RXON_DEV_TYPE_P2P
;
2872 ctx
->staging
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2874 priv
->hw_roc_channel
= NULL
;
2876 memset(ctx
->staging
.node_addr
, 0, ETH_ALEN
);
2878 iwlagn_commit_rxon(priv
, ctx
);
2880 ctx
->is_active
= false;
2881 priv
->hw_roc_setup
= false;
2884 static void iwlagn_disable_roc_work(struct work_struct
*work
)
2886 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
2887 hw_roc_disable_work
.work
);
2889 mutex_lock(&priv
->shrd
->mutex
);
2890 iwlagn_disable_roc(priv
);
2891 mutex_unlock(&priv
->shrd
->mutex
);
2894 static int iwl_mac_remain_on_channel(struct ieee80211_hw
*hw
,
2895 struct ieee80211_channel
*channel
,
2896 enum nl80211_channel_type channel_type
,
2899 struct iwl_priv
*priv
= hw
->priv
;
2900 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
2903 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
2906 if (!(ctx
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)))
2909 mutex_lock(&priv
->shrd
->mutex
);
2912 * TODO: Remove this hack! Firmware needs to be updated
2913 * to allow longer off-channel periods in scanning for
2914 * this use case, based on a flag (and we'll need an API
2915 * flag in the firmware when it has that).
2917 if (iwl_is_associated(priv
, IWL_RXON_CTX_BSS
) && duration
> 80)
2920 if (test_bit(STATUS_SCAN_HW
, &priv
->shrd
->status
)) {
2925 priv
->hw_roc_channel
= channel
;
2926 priv
->hw_roc_chantype
= channel_type
;
2927 priv
->hw_roc_duration
= duration
;
2928 cancel_delayed_work(&priv
->hw_roc_disable_work
);
2930 if (!ctx
->is_active
) {
2931 ctx
->is_active
= true;
2932 ctx
->staging
.dev_type
= RXON_DEV_TYPE_P2P
;
2933 memcpy(ctx
->staging
.node_addr
,
2934 priv
->contexts
[IWL_RXON_CTX_BSS
].staging
.node_addr
,
2936 memcpy(ctx
->staging
.bssid_addr
,
2937 priv
->contexts
[IWL_RXON_CTX_BSS
].staging
.node_addr
,
2939 err
= iwlagn_commit_rxon(priv
, ctx
);
2942 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
|
2943 RXON_FILTER_PROMISC_MSK
|
2944 RXON_FILTER_CTL2HOST_MSK
;
2946 err
= iwlagn_commit_rxon(priv
, ctx
);
2948 iwlagn_disable_roc(priv
);
2951 priv
->hw_roc_setup
= true;
2954 err
= iwl_scan_initiate(priv
, ctx
->vif
, IWL_SCAN_ROC
, channel
->band
);
2956 iwlagn_disable_roc(priv
);
2959 mutex_unlock(&priv
->shrd
->mutex
);
2964 static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw
*hw
)
2966 struct iwl_priv
*priv
= hw
->priv
;
2968 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
2971 mutex_lock(&priv
->shrd
->mutex
);
2972 iwl_scan_cancel_timeout(priv
, priv
->hw_roc_duration
);
2973 iwlagn_disable_roc(priv
);
2974 mutex_unlock(&priv
->shrd
->mutex
);
2979 /*****************************************************************************
2981 * driver setup and teardown
2983 *****************************************************************************/
2985 static void iwl_setup_deferred_work(struct iwl_priv
*priv
)
2987 priv
->shrd
->workqueue
= create_singlethread_workqueue(DRV_NAME
);
2989 init_waitqueue_head(&priv
->wait_command_queue
);
2991 INIT_WORK(&priv
->restart
, iwl_bg_restart
);
2992 INIT_WORK(&priv
->beacon_update
, iwl_bg_beacon_update
);
2993 INIT_WORK(&priv
->run_time_calib_work
, iwl_bg_run_time_calib_work
);
2994 INIT_WORK(&priv
->tx_flush
, iwl_bg_tx_flush
);
2995 INIT_WORK(&priv
->bt_full_concurrency
, iwl_bg_bt_full_concurrency
);
2996 INIT_WORK(&priv
->bt_runtime_config
, iwl_bg_bt_runtime_config
);
2997 INIT_DELAYED_WORK(&priv
->hw_roc_disable_work
,
2998 iwlagn_disable_roc_work
);
3000 iwl_setup_scan_deferred_work(priv
);
3002 if (priv
->cfg
->lib
->bt_setup_deferred_work
)
3003 priv
->cfg
->lib
->bt_setup_deferred_work(priv
);
3005 init_timer(&priv
->statistics_periodic
);
3006 priv
->statistics_periodic
.data
= (unsigned long)priv
;
3007 priv
->statistics_periodic
.function
= iwl_bg_statistics_periodic
;
3009 init_timer(&priv
->ucode_trace
);
3010 priv
->ucode_trace
.data
= (unsigned long)priv
;
3011 priv
->ucode_trace
.function
= iwl_bg_ucode_trace
;
3013 init_timer(&priv
->watchdog
);
3014 priv
->watchdog
.data
= (unsigned long)priv
;
3015 priv
->watchdog
.function
= iwl_bg_watchdog
;
3018 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
)
3020 if (priv
->cfg
->lib
->cancel_deferred_work
)
3021 priv
->cfg
->lib
->cancel_deferred_work(priv
);
3023 cancel_work_sync(&priv
->run_time_calib_work
);
3024 cancel_work_sync(&priv
->beacon_update
);
3026 iwl_cancel_scan_deferred_work(priv
);
3028 cancel_work_sync(&priv
->bt_full_concurrency
);
3029 cancel_work_sync(&priv
->bt_runtime_config
);
3030 cancel_delayed_work_sync(&priv
->hw_roc_disable_work
);
3032 del_timer_sync(&priv
->statistics_periodic
);
3033 del_timer_sync(&priv
->ucode_trace
);
3036 static void iwl_init_hw_rates(struct iwl_priv
*priv
,
3037 struct ieee80211_rate
*rates
)
3041 for (i
= 0; i
< IWL_RATE_COUNT_LEGACY
; i
++) {
3042 rates
[i
].bitrate
= iwl_rates
[i
].ieee
* 5;
3043 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
3044 rates
[i
].hw_value_short
= i
;
3046 if ((i
>= IWL_FIRST_CCK_RATE
) && (i
<= IWL_LAST_CCK_RATE
)) {
3048 * If CCK != 1M then set short preamble rate flag.
3051 (iwl_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
3052 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
3057 static int iwl_init_drv(struct iwl_priv
*priv
)
3061 spin_lock_init(&priv
->shrd
->sta_lock
);
3062 spin_lock_init(&priv
->hcmd_lock
);
3064 mutex_init(&priv
->shrd
->mutex
);
3066 priv
->ieee_channels
= NULL
;
3067 priv
->ieee_rates
= NULL
;
3068 priv
->band
= IEEE80211_BAND_2GHZ
;
3070 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
3071 priv
->current_ht_config
.smps
= IEEE80211_SMPS_STATIC
;
3072 priv
->missed_beacon_threshold
= IWL_MISSED_BEACON_THRESHOLD_DEF
;
3073 priv
->agg_tids_count
= 0;
3075 /* initialize force reset */
3076 priv
->force_reset
[IWL_RF_RESET
].reset_duration
=
3077 IWL_DELAY_NEXT_FORCE_RF_RESET
;
3078 priv
->force_reset
[IWL_FW_RESET
].reset_duration
=
3079 IWL_DELAY_NEXT_FORCE_FW_RELOAD
;
3081 priv
->rx_statistics_jiffies
= jiffies
;
3083 /* Choose which receivers/antennas to use */
3084 iwlagn_set_rxon_chain(priv
, &priv
->contexts
[IWL_RXON_CTX_BSS
]);
3086 iwl_init_scan_params(priv
);
3089 if (priv
->cfg
->bt_params
&&
3090 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
3091 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
3092 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
3093 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
3094 priv
->bt_on_thresh
= BT_ON_THRESHOLD_DEF
;
3095 priv
->bt_duration
= BT_DURATION_LIMIT_DEF
;
3096 priv
->dynamic_frag_thresh
= BT_FRAG_THRESHOLD_DEF
;
3099 ret
= iwl_init_channel_map(priv
);
3101 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
3105 ret
= iwl_init_geos(priv
);
3107 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
3108 goto err_free_channel_map
;
3110 iwl_init_hw_rates(priv
, priv
->ieee_rates
);
3114 err_free_channel_map
:
3115 iwl_free_channel_map(priv
);
3120 static void iwl_uninit_drv(struct iwl_priv
*priv
)
3122 iwl_calib_free_results(priv
);
3123 iwl_free_geos(priv
);
3124 iwl_free_channel_map(priv
);
3125 kfree(priv
->scan_cmd
);
3126 kfree(priv
->beacon_cmd
);
3127 #ifdef CONFIG_IWLWIFI_DEBUGFS
3128 kfree(priv
->wowlan_sram
);
3132 static void iwl_mac_rssi_callback(struct ieee80211_hw
*hw
,
3133 enum ieee80211_rssi_event rssi_event
)
3135 struct iwl_priv
*priv
= hw
->priv
;
3137 mutex_lock(&priv
->shrd
->mutex
);
3139 if (priv
->cfg
->bt_params
&&
3140 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
3141 if (rssi_event
== RSSI_EVENT_LOW
)
3142 priv
->bt_enable_pspoll
= true;
3143 else if (rssi_event
== RSSI_EVENT_HIGH
)
3144 priv
->bt_enable_pspoll
= false;
3146 iwlagn_send_advance_bt_config(priv
);
3148 IWL_DEBUG_MAC80211(priv
, "Advanced BT coex disabled,"
3149 "ignoring RSSI callback\n");
3152 mutex_unlock(&priv
->shrd
->mutex
);
3155 struct ieee80211_ops iwlagn_hw_ops
= {
3156 .tx
= iwlagn_mac_tx
,
3157 .start
= iwlagn_mac_start
,
3158 .stop
= iwlagn_mac_stop
,
3160 .suspend
= iwlagn_mac_suspend
,
3161 .resume
= iwlagn_mac_resume
,
3163 .add_interface
= iwl_mac_add_interface
,
3164 .remove_interface
= iwl_mac_remove_interface
,
3165 .change_interface
= iwl_mac_change_interface
,
3166 .config
= iwlagn_mac_config
,
3167 .configure_filter
= iwlagn_configure_filter
,
3168 .set_key
= iwlagn_mac_set_key
,
3169 .update_tkip_key
= iwlagn_mac_update_tkip_key
,
3170 .set_rekey_data
= iwlagn_mac_set_rekey_data
,
3171 .conf_tx
= iwl_mac_conf_tx
,
3172 .bss_info_changed
= iwlagn_bss_info_changed
,
3173 .ampdu_action
= iwlagn_mac_ampdu_action
,
3174 .hw_scan
= iwl_mac_hw_scan
,
3175 .sta_notify
= iwlagn_mac_sta_notify
,
3176 .sta_add
= iwlagn_mac_sta_add
,
3177 .sta_remove
= iwl_mac_sta_remove
,
3178 .channel_switch
= iwlagn_mac_channel_switch
,
3179 .flush
= iwlagn_mac_flush
,
3180 .tx_last_beacon
= iwl_mac_tx_last_beacon
,
3181 .remain_on_channel
= iwl_mac_remain_on_channel
,
3182 .cancel_remain_on_channel
= iwl_mac_cancel_remain_on_channel
,
3183 .rssi_callback
= iwl_mac_rssi_callback
,
3184 CFG80211_TESTMODE_CMD(iwl_testmode_cmd
)
3185 CFG80211_TESTMODE_DUMP(iwl_testmode_dump
)
3188 static u32
iwl_hw_detect(struct iwl_priv
*priv
)
3190 return iwl_read32(priv
, CSR_HW_REV
);
3193 static int iwl_set_hw_params(struct iwl_priv
*priv
)
3195 hw_params(priv
).max_rxq_size
= RX_QUEUE_SIZE
;
3196 hw_params(priv
).max_rxq_log
= RX_QUEUE_SIZE_LOG
;
3197 if (iwlagn_mod_params
.amsdu_size_8K
)
3198 hw_params(priv
).rx_page_order
=
3199 get_order(IWL_RX_BUF_SIZE_8K
);
3201 hw_params(priv
).rx_page_order
=
3202 get_order(IWL_RX_BUF_SIZE_4K
);
3204 hw_params(priv
).max_beacon_itrvl
= IWL_MAX_UCODE_BEACON_INTERVAL
;
3206 if (iwlagn_mod_params
.disable_11n
)
3207 priv
->cfg
->sku
&= ~EEPROM_SKU_CAP_11N_ENABLE
;
3209 /* Device-specific setup */
3210 return priv
->cfg
->lib
->set_hw_params(priv
);
3213 /* This function both allocates and initializes hw and priv. */
3214 static struct ieee80211_hw
*iwl_alloc_all(struct iwl_cfg
*cfg
)
3216 struct iwl_priv
*priv
;
3217 /* mac80211 allocates memory for this device instance, including
3218 * space for this driver's private structure */
3219 struct ieee80211_hw
*hw
;
3221 hw
= ieee80211_alloc_hw(sizeof(struct iwl_priv
), &iwlagn_hw_ops
);
3223 pr_err("%s: Can not allocate network device\n",
3235 int iwl_probe(struct iwl_bus
*bus
, const struct iwl_trans_ops
*trans_ops
,
3236 struct iwl_cfg
*cfg
)
3239 struct iwl_priv
*priv
;
3240 struct ieee80211_hw
*hw
;
3244 /************************
3245 * 1. Allocating HW data
3246 ************************/
3247 hw
= iwl_alloc_all(cfg
);
3255 priv
->shrd
= &priv
->_shrd
;
3256 priv
->shrd
->bus
= bus
;
3257 priv
->shrd
->priv
= priv
;
3258 bus_set_drv_data(priv
->bus
, priv
->shrd
);
3260 priv
->shrd
->trans
= trans_ops
->alloc(priv
->shrd
);
3261 if (priv
->shrd
->trans
== NULL
) {
3263 goto out_free_traffic_mem
;
3266 /* At this point both hw and priv are allocated. */
3268 SET_IEEE80211_DEV(hw
, priv
->bus
->dev
);
3270 IWL_DEBUG_INFO(priv
, "*** LOAD DRIVER ***\n");
3273 /* is antenna coupling more than 35dB ? */
3274 priv
->bt_ant_couple_ok
=
3275 (iwlagn_mod_params
.ant_coupling
>
3276 IWL_BT_ANTENNA_COUPLING_THRESHOLD
) ?
3279 /* enable/disable bt channel inhibition */
3280 priv
->bt_ch_announce
= iwlagn_mod_params
.bt_ch_announce
;
3281 IWL_DEBUG_INFO(priv
, "BT channel inhibition is %s\n",
3282 (priv
->bt_ch_announce
) ? "On" : "Off");
3284 if (iwl_alloc_traffic_mem(priv
))
3285 IWL_ERR(priv
, "Not enough memory to generate traffic log\n");
3287 /* these spin locks will be used in apm_ops.init and EEPROM access
3288 * we should init now
3290 spin_lock_init(&priv
->reg_lock
);
3291 spin_lock_init(&priv
->shrd
->lock
);
3294 * stop and reset the on-board processor just in case it is in a
3295 * strange state ... like being left stranded by a primary kernel
3296 * and this is now the kdump kernel trying to start up
3298 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
3300 /***********************
3301 * 3. Read REV register
3302 ***********************/
3303 hw_rev
= iwl_hw_detect(priv
);
3304 IWL_INFO(priv
, "Detected %s, REV=0x%X\n",
3305 priv
->cfg
->name
, hw_rev
);
3307 err
= iwl_trans_request_irq(trans(priv
));
3309 goto out_free_trans
;
3311 if (iwl_trans_prepare_card_hw(trans(priv
))) {
3313 IWL_WARN(priv
, "Failed, HW not ready\n");
3314 goto out_free_trans
;
3320 /* Read the EEPROM */
3321 err
= iwl_eeprom_init(priv
, hw_rev
);
3323 IWL_ERR(priv
, "Unable to init EEPROM\n");
3324 goto out_free_trans
;
3326 err
= iwl_eeprom_check_version(priv
);
3328 goto out_free_eeprom
;
3330 err
= iwl_eeprom_check_sku(priv
);
3332 goto out_free_eeprom
;
3334 /* extract MAC Address */
3335 iwl_eeprom_get_mac(priv
, priv
->addresses
[0].addr
);
3336 IWL_DEBUG_INFO(priv
, "MAC address: %pM\n", priv
->addresses
[0].addr
);
3337 priv
->hw
->wiphy
->addresses
= priv
->addresses
;
3338 priv
->hw
->wiphy
->n_addresses
= 1;
3339 num_mac
= iwl_eeprom_query16(priv
, EEPROM_NUM_MAC_ADDRESS
);
3341 memcpy(priv
->addresses
[1].addr
, priv
->addresses
[0].addr
,
3343 priv
->addresses
[1].addr
[5]++;
3344 priv
->hw
->wiphy
->n_addresses
++;
3347 /************************
3348 * 5. Setup HW constants
3349 ************************/
3350 if (iwl_set_hw_params(priv
)) {
3352 IWL_ERR(priv
, "failed to set hw parameters\n");
3353 goto out_free_eeprom
;
3356 /*******************
3358 *******************/
3360 err
= iwl_init_drv(priv
);
3362 goto out_free_eeprom
;
3363 /* At this point both hw and priv are initialized. */
3365 /********************
3367 ********************/
3368 iwl_setup_deferred_work(priv
);
3369 iwl_setup_rx_handlers(priv
);
3370 iwl_testmode_init(priv
);
3372 /*********************************************
3373 * 8. Enable interrupts
3374 *********************************************/
3376 iwl_enable_rfkill_int(priv
);
3378 /* If platform's RF_KILL switch is NOT set to KILL */
3379 if (iwl_read32(priv
, CSR_GP_CNTRL
) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
3380 clear_bit(STATUS_RF_KILL_HW
, &priv
->shrd
->status
);
3382 set_bit(STATUS_RF_KILL_HW
, &priv
->shrd
->status
);
3384 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
3385 test_bit(STATUS_RF_KILL_HW
, &priv
->shrd
->status
));
3387 iwl_power_initialize(priv
);
3388 iwl_tt_initialize(priv
);
3390 init_completion(&priv
->firmware_loading_complete
);
3392 err
= iwl_request_firmware(priv
, true);
3394 goto out_destroy_workqueue
;
3398 out_destroy_workqueue
:
3399 destroy_workqueue(priv
->shrd
->workqueue
);
3400 priv
->shrd
->workqueue
= NULL
;
3401 iwl_uninit_drv(priv
);
3403 iwl_eeprom_free(priv
);
3405 iwl_trans_free(trans(priv
));
3406 out_free_traffic_mem
:
3407 iwl_free_traffic_mem(priv
);
3408 ieee80211_free_hw(priv
->hw
);
3413 void __devexit
iwl_remove(struct iwl_priv
* priv
)
3415 wait_for_completion(&priv
->firmware_loading_complete
);
3417 IWL_DEBUG_INFO(priv
, "*** UNLOAD DRIVER ***\n");
3419 iwl_dbgfs_unregister(priv
);
3420 sysfs_remove_group(&priv
->bus
->dev
->kobj
,
3421 &iwl_attribute_group
);
3423 /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
3424 * to be called and iwl_down since we are removing the device
3425 * we need to set STATUS_EXIT_PENDING bit.
3427 set_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
3429 iwl_testmode_cleanup(priv
);
3430 iwl_leds_exit(priv
);
3432 if (priv
->mac80211_registered
) {
3433 ieee80211_unregister_hw(priv
->hw
);
3434 priv
->mac80211_registered
= 0;
3437 /* Reset to low power before unloading driver. */
3442 /* make sure we flush any pending irq or
3443 * tasklet for the driver */
3444 iwl_trans_disable_sync_irq(trans(priv
));
3446 iwl_dealloc_ucode(priv
);
3448 iwl_trans_rx_free(trans(priv
));
3449 iwl_trans_tx_free(trans(priv
));
3451 iwl_eeprom_free(priv
);
3453 /*netif_stop_queue(dev); */
3454 flush_workqueue(priv
->shrd
->workqueue
);
3456 /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
3457 * priv->shrd->workqueue... so we can't take down the workqueue
3459 destroy_workqueue(priv
->shrd
->workqueue
);
3460 priv
->shrd
->workqueue
= NULL
;
3461 iwl_free_traffic_mem(priv
);
3463 iwl_trans_free(trans(priv
));
3465 bus_set_drv_data(priv
->bus
, NULL
);
3467 iwl_uninit_drv(priv
);
3469 dev_kfree_skb(priv
->beacon_skb
);
3471 ieee80211_free_hw(priv
->hw
);
3475 /*****************************************************************************
3477 * driver and module entry point
3479 *****************************************************************************/
3480 static int __init
iwl_init(void)
3484 pr_info(DRV_DESCRIPTION
", " DRV_VERSION
"\n");
3485 pr_info(DRV_COPYRIGHT
"\n");
3487 ret
= iwlagn_rate_control_register();
3489 pr_err("Unable to register rate control algorithm: %d\n", ret
);
3493 ret
= iwl_pci_register_driver();
3496 goto error_register
;
3500 iwlagn_rate_control_unregister();
3504 static void __exit
iwl_exit(void)
3506 iwl_pci_unregister_driver();
3507 iwlagn_rate_control_unregister();
3510 module_exit(iwl_exit
);
3511 module_init(iwl_init
);
3513 #ifdef CONFIG_IWLWIFI_DEBUG
3514 module_param_named(debug
, iwlagn_mod_params
.debug_level
, uint
,
3516 MODULE_PARM_DESC(debug
, "debug output mask");
3519 module_param_named(swcrypto
, iwlagn_mod_params
.sw_crypto
, int, S_IRUGO
);
3520 MODULE_PARM_DESC(swcrypto
, "using crypto in software (default 0 [hardware])");
3521 module_param_named(queues_num
, iwlagn_mod_params
.num_of_queues
, int, S_IRUGO
);
3522 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
3523 module_param_named(11n_disable
, iwlagn_mod_params
.disable_11n
, int, S_IRUGO
);
3524 MODULE_PARM_DESC(11n_disable
, "disable 11n functionality");
3525 module_param_named(amsdu_size_8K
, iwlagn_mod_params
.amsdu_size_8K
,
3527 MODULE_PARM_DESC(amsdu_size_8K
, "enable 8K amsdu size");
3528 module_param_named(fw_restart
, iwlagn_mod_params
.restart_fw
, int, S_IRUGO
);
3529 MODULE_PARM_DESC(fw_restart
, "restart firmware in case of error");
3531 module_param_named(ucode_alternative
,
3532 iwlagn_mod_params
.wanted_ucode_alternative
,
3534 MODULE_PARM_DESC(ucode_alternative
,
3535 "specify ucode alternative to use from ucode file");
3537 module_param_named(antenna_coupling
, iwlagn_mod_params
.ant_coupling
,
3539 MODULE_PARM_DESC(antenna_coupling
,
3540 "specify antenna coupling in dB (defualt: 0 dB)");
3542 module_param_named(bt_ch_inhibition
, iwlagn_mod_params
.bt_ch_announce
,
3544 MODULE_PARM_DESC(bt_ch_inhibition
,
3545 "Enable BT channel inhibition (default: enable)");
3547 module_param_named(plcp_check
, iwlagn_mod_params
.plcp_check
, bool, S_IRUGO
);
3548 MODULE_PARM_DESC(plcp_check
, "Check plcp health (default: 1 [enabled])");
3550 module_param_named(ack_check
, iwlagn_mod_params
.ack_check
, bool, S_IRUGO
);
3551 MODULE_PARM_DESC(ack_check
, "Check ack health (default: 0 [disabled])");
3553 module_param_named(wd_disable
, iwlagn_mod_params
.wd_disable
, bool, S_IRUGO
);
3554 MODULE_PARM_DESC(wd_disable
,
3555 "Disable stuck queue watchdog timer (default: 0 [enabled])");
3558 * set bt_coex_active to true, uCode will do kill/defer
3559 * every time the priority line is asserted (BT is sending signals on the
3560 * priority line in the PCIx).
3561 * set bt_coex_active to false, uCode will ignore the BT activity and
3562 * perform the normal operation
3564 * User might experience transmit issue on some platform due to WiFi/BT
3565 * co-exist problem. The possible behaviors are:
3566 * Able to scan and finding all the available AP
3567 * Not able to associate with any AP
3568 * On those platforms, WiFi communication can be restored by set
3569 * "bt_coex_active" module parameter to "false"
3571 * default: bt_coex_active = true (BT_COEX_ENABLE)
3573 module_param_named(bt_coex_active
, iwlagn_mod_params
.bt_coex_active
,
3575 MODULE_PARM_DESC(bt_coex_active
, "enable wifi/bt co-exist (default: enable)");
3577 module_param_named(led_mode
, iwlagn_mod_params
.led_mode
, int, S_IRUGO
);
3578 MODULE_PARM_DESC(led_mode
, "0=system default, "
3579 "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)");
3581 module_param_named(power_save
, iwlagn_mod_params
.power_save
,
3583 MODULE_PARM_DESC(power_save
,
3584 "enable WiFi power management (default: disable)");
3586 module_param_named(power_level
, iwlagn_mod_params
.power_level
,
3588 MODULE_PARM_DESC(power_level
,
3589 "default power save level (range from 1 - 5, default: 1)");
3591 module_param_named(auto_agg
, iwlagn_mod_params
.auto_agg
,
3593 MODULE_PARM_DESC(auto_agg
,
3594 "enable agg w/o check traffic load (default: enable)");
3597 * For now, keep using power level 1 instead of automatically
3600 module_param_named(no_sleep_autoadjust
, iwlagn_mod_params
.no_sleep_autoadjust
,
3602 MODULE_PARM_DESC(no_sleep_autoadjust
,
3603 "don't automatically adjust sleep level "
3604 "according to maximum network latency (default: true)");