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
->shrd
))
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
->shrd
))
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
->shrd
))
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(&bus(priv
)->reg_lock
, reg_flags
);
333 if (iwl_grab_nic_access(bus(priv
))) {
334 spin_unlock_irqrestore(&bus(priv
)->reg_lock
, reg_flags
);
338 /* Set starting address; reads will auto-increment */
339 iwl_write32(bus(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(bus(priv
), HBUS_TARG_MEM_RDAT
);
348 time
= iwl_read32(bus(priv
), HBUS_TARG_MEM_RDAT
);
350 trace_iwlwifi_dev_ucode_cont_event(priv
,
353 data
= iwl_read32(bus(priv
), HBUS_TARG_MEM_RDAT
);
354 trace_iwlwifi_dev_ucode_cont_event(priv
,
358 /* Allow device to power down */
359 iwl_release_nic_access(bus(priv
));
360 spin_unlock_irqrestore(&bus(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(bus(priv
), base
);
374 num_wraps
= iwl_read_targ_mem(bus(priv
),
375 base
+ (2 * sizeof(u32
)));
376 mode
= iwl_read_targ_mem(bus(priv
), base
+ (1 * sizeof(u32
)));
377 next_entry
= iwl_read_targ_mem(bus(priv
),
378 base
+ (3 * sizeof(u32
)));
382 if (num_wraps
== priv
->event_log
.num_wraps
) {
383 iwl_print_cont_event_trace(priv
,
384 base
, priv
->event_log
.next_entry
,
385 next_entry
- priv
->event_log
.next_entry
,
387 priv
->event_log
.non_wraps_count
++;
389 if ((num_wraps
- priv
->event_log
.num_wraps
) > 1)
390 priv
->event_log
.wraps_more_count
++;
392 priv
->event_log
.wraps_once_count
++;
393 trace_iwlwifi_dev_ucode_wrap_event(priv
,
394 num_wraps
- priv
->event_log
.num_wraps
,
395 next_entry
, priv
->event_log
.next_entry
);
396 if (next_entry
< priv
->event_log
.next_entry
) {
397 iwl_print_cont_event_trace(priv
, base
,
398 priv
->event_log
.next_entry
,
399 capacity
- priv
->event_log
.next_entry
,
402 iwl_print_cont_event_trace(priv
, base
, 0,
405 iwl_print_cont_event_trace(priv
, base
,
406 next_entry
, capacity
- next_entry
,
409 iwl_print_cont_event_trace(priv
, base
, 0,
413 priv
->event_log
.num_wraps
= num_wraps
;
414 priv
->event_log
.next_entry
= next_entry
;
418 * iwl_bg_ucode_trace - Timer callback to log ucode event
420 * The timer is continually set to execute every
421 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
422 * this function is to perform continuous uCode event logging operation
425 static void iwl_bg_ucode_trace(unsigned long data
)
427 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
429 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
432 if (priv
->event_log
.ucode_trace
) {
433 iwl_continuous_event_trace(priv
);
434 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
435 mod_timer(&priv
->ucode_trace
,
436 jiffies
+ msecs_to_jiffies(UCODE_TRACE_PERIOD
));
440 static void iwl_bg_tx_flush(struct work_struct
*work
)
442 struct iwl_priv
*priv
=
443 container_of(work
, struct iwl_priv
, tx_flush
);
445 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
448 /* do nothing if rf-kill is on */
449 if (!iwl_is_ready_rf(priv
->shrd
))
452 IWL_DEBUG_INFO(priv
, "device request: flush all tx frames\n");
453 iwlagn_dev_txfifo_flush(priv
, IWL_DROP_ALL
);
456 /*****************************************************************************
460 *****************************************************************************/
462 #ifdef CONFIG_IWLWIFI_DEBUG
465 * The following adds a new attribute to the sysfs representation
466 * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
467 * used for controlling the debug level.
469 * See the level definitions in iwl for details.
471 * The debug_level being managed using sysfs below is a per device debug
472 * level that is used instead of the global debug level if it (the per
473 * device debug level) is set.
475 static ssize_t
show_debug_level(struct device
*d
,
476 struct device_attribute
*attr
, char *buf
)
478 struct iwl_shared
*shrd
= dev_get_drvdata(d
);
479 return sprintf(buf
, "0x%08X\n", iwl_get_debug_level(shrd
));
481 static ssize_t
store_debug_level(struct device
*d
,
482 struct device_attribute
*attr
,
483 const char *buf
, size_t count
)
485 struct iwl_shared
*shrd
= dev_get_drvdata(d
);
486 struct iwl_priv
*priv
= shrd
->priv
;
490 ret
= strict_strtoul(buf
, 0, &val
);
492 IWL_ERR(priv
, "%s is not in hex or decimal form.\n", buf
);
494 shrd
->dbg_level_dev
= val
;
495 if (iwl_alloc_traffic_mem(priv
))
497 "Not enough memory to generate traffic log\n");
499 return strnlen(buf
, count
);
502 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
503 show_debug_level
, store_debug_level
);
506 #endif /* CONFIG_IWLWIFI_DEBUG */
509 static ssize_t
show_temperature(struct device
*d
,
510 struct device_attribute
*attr
, char *buf
)
512 struct iwl_shared
*shrd
= dev_get_drvdata(d
);
513 struct iwl_priv
*priv
= shrd
->priv
;
515 if (!iwl_is_alive(priv
->shrd
))
518 return sprintf(buf
, "%d\n", priv
->temperature
);
521 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
523 static ssize_t
show_tx_power(struct device
*d
,
524 struct device_attribute
*attr
, char *buf
)
526 struct iwl_priv
*priv
= dev_get_drvdata(d
);
528 if (!iwl_is_ready_rf(priv
->shrd
))
529 return sprintf(buf
, "off\n");
531 return sprintf(buf
, "%d\n", priv
->tx_power_user_lmt
);
534 static ssize_t
store_tx_power(struct device
*d
,
535 struct device_attribute
*attr
,
536 const char *buf
, size_t count
)
538 struct iwl_priv
*priv
= dev_get_drvdata(d
);
542 ret
= strict_strtoul(buf
, 10, &val
);
544 IWL_INFO(priv
, "%s is not in decimal form.\n", buf
);
546 ret
= iwl_set_tx_power(priv
, val
, false);
548 IWL_ERR(priv
, "failed setting tx power (0x%d).\n",
556 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
558 static struct attribute
*iwl_sysfs_entries
[] = {
559 &dev_attr_temperature
.attr
,
560 &dev_attr_tx_power
.attr
,
561 #ifdef CONFIG_IWLWIFI_DEBUG
562 &dev_attr_debug_level
.attr
,
567 static struct attribute_group iwl_attribute_group
= {
568 .name
= NULL
, /* put in device directory */
569 .attrs
= iwl_sysfs_entries
,
572 /******************************************************************************
574 * uCode download functions
576 ******************************************************************************/
578 static void iwl_free_fw_desc(struct iwl_priv
*priv
, struct fw_desc
*desc
)
581 dma_free_coherent(priv
->bus
->dev
, desc
->len
,
582 desc
->v_addr
, desc
->p_addr
);
587 static void iwl_free_fw_img(struct iwl_priv
*priv
, struct fw_img
*img
)
589 iwl_free_fw_desc(priv
, &img
->code
);
590 iwl_free_fw_desc(priv
, &img
->data
);
593 static void iwl_dealloc_ucode(struct iwl_priv
*priv
)
595 iwl_free_fw_img(priv
, &priv
->ucode_rt
);
596 iwl_free_fw_img(priv
, &priv
->ucode_init
);
597 iwl_free_fw_img(priv
, &priv
->ucode_wowlan
);
600 static int iwl_alloc_fw_desc(struct iwl_priv
*priv
, struct fw_desc
*desc
,
601 const void *data
, size_t len
)
608 desc
->v_addr
= dma_alloc_coherent(priv
->bus
->dev
, len
,
609 &desc
->p_addr
, GFP_KERNEL
);
614 memcpy(desc
->v_addr
, data
, len
);
618 static void iwl_init_context(struct iwl_priv
*priv
, u32 ucode_flags
)
620 static const u8 iwlagn_bss_ac_to_fifo
[] = {
626 static const u8 iwlagn_bss_ac_to_queue
[] = {
629 static const u8 iwlagn_pan_ac_to_fifo
[] = {
635 static const u8 iwlagn_pan_ac_to_queue
[] = {
641 * The default context is always valid,
642 * the PAN context depends on uCode.
644 priv
->valid_contexts
= BIT(IWL_RXON_CTX_BSS
);
645 if (ucode_flags
& IWL_UCODE_TLV_FLAGS_PAN
)
646 priv
->valid_contexts
|= BIT(IWL_RXON_CTX_PAN
);
648 for (i
= 0; i
< NUM_IWL_RXON_CTX
; i
++)
649 priv
->contexts
[i
].ctxid
= i
;
651 priv
->contexts
[IWL_RXON_CTX_BSS
].always_active
= true;
652 priv
->contexts
[IWL_RXON_CTX_BSS
].is_active
= true;
653 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_cmd
= REPLY_RXON
;
654 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_timing_cmd
= REPLY_RXON_TIMING
;
655 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_assoc_cmd
= REPLY_RXON_ASSOC
;
656 priv
->contexts
[IWL_RXON_CTX_BSS
].qos_cmd
= REPLY_QOS_PARAM
;
657 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_sta_id
= IWL_AP_ID
;
658 priv
->contexts
[IWL_RXON_CTX_BSS
].wep_key_cmd
= REPLY_WEPKEY
;
659 priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_fifo
= iwlagn_bss_ac_to_fifo
;
660 priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_queue
= iwlagn_bss_ac_to_queue
;
661 priv
->contexts
[IWL_RXON_CTX_BSS
].exclusive_interface_modes
=
662 BIT(NL80211_IFTYPE_ADHOC
);
663 priv
->contexts
[IWL_RXON_CTX_BSS
].interface_modes
=
664 BIT(NL80211_IFTYPE_STATION
);
665 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_devtype
= RXON_DEV_TYPE_AP
;
666 priv
->contexts
[IWL_RXON_CTX_BSS
].ibss_devtype
= RXON_DEV_TYPE_IBSS
;
667 priv
->contexts
[IWL_RXON_CTX_BSS
].station_devtype
= RXON_DEV_TYPE_ESS
;
668 priv
->contexts
[IWL_RXON_CTX_BSS
].unused_devtype
= RXON_DEV_TYPE_ESS
;
670 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_cmd
= REPLY_WIPAN_RXON
;
671 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_timing_cmd
=
672 REPLY_WIPAN_RXON_TIMING
;
673 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_assoc_cmd
=
674 REPLY_WIPAN_RXON_ASSOC
;
675 priv
->contexts
[IWL_RXON_CTX_PAN
].qos_cmd
= REPLY_WIPAN_QOS_PARAM
;
676 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_sta_id
= IWL_AP_ID_PAN
;
677 priv
->contexts
[IWL_RXON_CTX_PAN
].wep_key_cmd
= REPLY_WIPAN_WEPKEY
;
678 priv
->contexts
[IWL_RXON_CTX_PAN
].bcast_sta_id
= IWLAGN_PAN_BCAST_ID
;
679 priv
->contexts
[IWL_RXON_CTX_PAN
].station_flags
= STA_FLG_PAN_STATION
;
680 priv
->contexts
[IWL_RXON_CTX_PAN
].ac_to_fifo
= iwlagn_pan_ac_to_fifo
;
681 priv
->contexts
[IWL_RXON_CTX_PAN
].ac_to_queue
= iwlagn_pan_ac_to_queue
;
682 priv
->contexts
[IWL_RXON_CTX_PAN
].mcast_queue
= IWL_IPAN_MCAST_QUEUE
;
683 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
=
684 BIT(NL80211_IFTYPE_STATION
) | BIT(NL80211_IFTYPE_AP
);
686 if (ucode_flags
& IWL_UCODE_TLV_FLAGS_P2P
)
687 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
|=
688 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
689 BIT(NL80211_IFTYPE_P2P_GO
);
691 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_devtype
= RXON_DEV_TYPE_CP
;
692 priv
->contexts
[IWL_RXON_CTX_PAN
].station_devtype
= RXON_DEV_TYPE_2STA
;
693 priv
->contexts
[IWL_RXON_CTX_PAN
].unused_devtype
= RXON_DEV_TYPE_P2P
;
695 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
699 struct iwlagn_ucode_capabilities
{
700 u32 max_probe_length
;
701 u32 standard_phy_calibration_size
;
705 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
);
706 static int iwl_mac_setup_register(struct iwl_priv
*priv
,
707 struct iwlagn_ucode_capabilities
*capa
);
709 #define UCODE_EXPERIMENTAL_INDEX 100
710 #define UCODE_EXPERIMENTAL_TAG "exp"
712 static int __must_check
iwl_request_firmware(struct iwl_priv
*priv
, bool first
)
714 const char *name_pre
= priv
->cfg
->fw_name_pre
;
718 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
719 priv
->fw_index
= UCODE_EXPERIMENTAL_INDEX
;
720 strcpy(tag
, UCODE_EXPERIMENTAL_TAG
);
721 } else if (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
) {
723 priv
->fw_index
= priv
->cfg
->ucode_api_max
;
724 sprintf(tag
, "%d", priv
->fw_index
);
727 sprintf(tag
, "%d", priv
->fw_index
);
730 if (priv
->fw_index
< priv
->cfg
->ucode_api_min
) {
731 IWL_ERR(priv
, "no suitable firmware found!\n");
735 sprintf(priv
->firmware_name
, "%s%s%s", name_pre
, tag
, ".ucode");
737 IWL_DEBUG_INFO(priv
, "attempting to load firmware %s'%s'\n",
738 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
739 ? "EXPERIMENTAL " : "",
740 priv
->firmware_name
);
742 return request_firmware_nowait(THIS_MODULE
, 1, priv
->firmware_name
,
744 GFP_KERNEL
, priv
, iwl_ucode_callback
);
747 struct iwlagn_firmware_pieces
{
748 const void *inst
, *data
, *init
, *init_data
, *wowlan_inst
, *wowlan_data
;
749 size_t inst_size
, data_size
, init_size
, init_data_size
,
750 wowlan_inst_size
, wowlan_data_size
;
754 u32 init_evtlog_ptr
, init_evtlog_size
, init_errlog_ptr
;
755 u32 inst_evtlog_ptr
, inst_evtlog_size
, inst_errlog_ptr
;
758 static int iwlagn_load_legacy_firmware(struct iwl_priv
*priv
,
759 const struct firmware
*ucode_raw
,
760 struct iwlagn_firmware_pieces
*pieces
)
762 struct iwl_ucode_header
*ucode
= (void *)ucode_raw
->data
;
763 u32 api_ver
, hdr_size
;
766 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
767 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
772 if (ucode_raw
->size
< hdr_size
) {
773 IWL_ERR(priv
, "File size too small!\n");
776 pieces
->build
= le32_to_cpu(ucode
->u
.v2
.build
);
777 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v2
.inst_size
);
778 pieces
->data_size
= le32_to_cpu(ucode
->u
.v2
.data_size
);
779 pieces
->init_size
= le32_to_cpu(ucode
->u
.v2
.init_size
);
780 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v2
.init_data_size
);
781 src
= ucode
->u
.v2
.data
;
787 if (ucode_raw
->size
< hdr_size
) {
788 IWL_ERR(priv
, "File size too small!\n");
792 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v1
.inst_size
);
793 pieces
->data_size
= le32_to_cpu(ucode
->u
.v1
.data_size
);
794 pieces
->init_size
= le32_to_cpu(ucode
->u
.v1
.init_size
);
795 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v1
.init_data_size
);
796 src
= ucode
->u
.v1
.data
;
800 /* Verify size of file vs. image size info in file's header */
801 if (ucode_raw
->size
!= hdr_size
+ pieces
->inst_size
+
802 pieces
->data_size
+ pieces
->init_size
+
803 pieces
->init_data_size
) {
806 "uCode file size %d does not match expected size\n",
807 (int)ucode_raw
->size
);
812 src
+= pieces
->inst_size
;
814 src
+= pieces
->data_size
;
816 src
+= pieces
->init_size
;
817 pieces
->init_data
= src
;
818 src
+= pieces
->init_data_size
;
823 static int iwlagn_load_firmware(struct iwl_priv
*priv
,
824 const struct firmware
*ucode_raw
,
825 struct iwlagn_firmware_pieces
*pieces
,
826 struct iwlagn_ucode_capabilities
*capa
)
828 struct iwl_tlv_ucode_header
*ucode
= (void *)ucode_raw
->data
;
829 struct iwl_ucode_tlv
*tlv
;
830 size_t len
= ucode_raw
->size
;
832 int wanted_alternative
= iwlagn_mod_params
.wanted_ucode_alternative
;
836 enum iwl_ucode_tlv_type tlv_type
;
839 if (len
< sizeof(*ucode
)) {
840 IWL_ERR(priv
, "uCode has invalid length: %zd\n", len
);
844 if (ucode
->magic
!= cpu_to_le32(IWL_TLV_UCODE_MAGIC
)) {
845 IWL_ERR(priv
, "invalid uCode magic: 0X%x\n",
846 le32_to_cpu(ucode
->magic
));
851 * Check which alternatives are present, and "downgrade"
852 * when the chosen alternative is not present, warning
853 * the user when that happens. Some files may not have
854 * any alternatives, so don't warn in that case.
856 alternatives
= le64_to_cpu(ucode
->alternatives
);
857 tmp
= wanted_alternative
;
858 if (wanted_alternative
> 63)
859 wanted_alternative
= 63;
860 while (wanted_alternative
&& !(alternatives
& BIT(wanted_alternative
)))
861 wanted_alternative
--;
862 if (wanted_alternative
&& wanted_alternative
!= tmp
)
864 "uCode alternative %d not available, choosing %d\n",
865 tmp
, wanted_alternative
);
867 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
868 pieces
->build
= le32_to_cpu(ucode
->build
);
871 len
-= sizeof(*ucode
);
873 while (len
>= sizeof(*tlv
)) {
879 tlv_len
= le32_to_cpu(tlv
->length
);
880 tlv_type
= le16_to_cpu(tlv
->type
);
881 tlv_alt
= le16_to_cpu(tlv
->alternative
);
882 tlv_data
= tlv
->data
;
885 IWL_ERR(priv
, "invalid TLV len: %zd/%u\n",
889 len
-= ALIGN(tlv_len
, 4);
890 data
+= sizeof(*tlv
) + ALIGN(tlv_len
, 4);
893 * Alternative 0 is always valid.
895 * Skip alternative TLVs that are not selected.
897 if (tlv_alt
!= 0 && tlv_alt
!= wanted_alternative
)
901 case IWL_UCODE_TLV_INST
:
902 pieces
->inst
= tlv_data
;
903 pieces
->inst_size
= tlv_len
;
905 case IWL_UCODE_TLV_DATA
:
906 pieces
->data
= tlv_data
;
907 pieces
->data_size
= tlv_len
;
909 case IWL_UCODE_TLV_INIT
:
910 pieces
->init
= tlv_data
;
911 pieces
->init_size
= tlv_len
;
913 case IWL_UCODE_TLV_INIT_DATA
:
914 pieces
->init_data
= tlv_data
;
915 pieces
->init_data_size
= tlv_len
;
917 case IWL_UCODE_TLV_BOOT
:
918 IWL_ERR(priv
, "Found unexpected BOOT ucode\n");
920 case IWL_UCODE_TLV_PROBE_MAX_LEN
:
921 if (tlv_len
!= sizeof(u32
))
922 goto invalid_tlv_len
;
923 capa
->max_probe_length
=
924 le32_to_cpup((__le32
*)tlv_data
);
926 case IWL_UCODE_TLV_PAN
:
928 goto invalid_tlv_len
;
929 capa
->flags
|= IWL_UCODE_TLV_FLAGS_PAN
;
931 case IWL_UCODE_TLV_FLAGS
:
932 /* must be at least one u32 */
933 if (tlv_len
< sizeof(u32
))
934 goto invalid_tlv_len
;
935 /* and a proper number of u32s */
936 if (tlv_len
% sizeof(u32
))
937 goto invalid_tlv_len
;
939 * This driver only reads the first u32 as
940 * right now no more features are defined,
941 * if that changes then either the driver
942 * will not work with the new firmware, or
943 * it'll not take advantage of new features.
945 capa
->flags
= le32_to_cpup((__le32
*)tlv_data
);
947 case IWL_UCODE_TLV_INIT_EVTLOG_PTR
:
948 if (tlv_len
!= sizeof(u32
))
949 goto invalid_tlv_len
;
950 pieces
->init_evtlog_ptr
=
951 le32_to_cpup((__le32
*)tlv_data
);
953 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE
:
954 if (tlv_len
!= sizeof(u32
))
955 goto invalid_tlv_len
;
956 pieces
->init_evtlog_size
=
957 le32_to_cpup((__le32
*)tlv_data
);
959 case IWL_UCODE_TLV_INIT_ERRLOG_PTR
:
960 if (tlv_len
!= sizeof(u32
))
961 goto invalid_tlv_len
;
962 pieces
->init_errlog_ptr
=
963 le32_to_cpup((__le32
*)tlv_data
);
965 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR
:
966 if (tlv_len
!= sizeof(u32
))
967 goto invalid_tlv_len
;
968 pieces
->inst_evtlog_ptr
=
969 le32_to_cpup((__le32
*)tlv_data
);
971 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE
:
972 if (tlv_len
!= sizeof(u32
))
973 goto invalid_tlv_len
;
974 pieces
->inst_evtlog_size
=
975 le32_to_cpup((__le32
*)tlv_data
);
977 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR
:
978 if (tlv_len
!= sizeof(u32
))
979 goto invalid_tlv_len
;
980 pieces
->inst_errlog_ptr
=
981 le32_to_cpup((__le32
*)tlv_data
);
983 case IWL_UCODE_TLV_ENHANCE_SENS_TBL
:
985 goto invalid_tlv_len
;
986 priv
->enhance_sensitivity_table
= true;
988 case IWL_UCODE_TLV_WOWLAN_INST
:
989 pieces
->wowlan_inst
= tlv_data
;
990 pieces
->wowlan_inst_size
= tlv_len
;
992 case IWL_UCODE_TLV_WOWLAN_DATA
:
993 pieces
->wowlan_data
= tlv_data
;
994 pieces
->wowlan_data_size
= tlv_len
;
996 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE
:
997 if (tlv_len
!= sizeof(u32
))
998 goto invalid_tlv_len
;
999 capa
->standard_phy_calibration_size
=
1000 le32_to_cpup((__le32
*)tlv_data
);
1003 IWL_DEBUG_INFO(priv
, "unknown TLV: %d\n", tlv_type
);
1009 IWL_ERR(priv
, "invalid TLV after parsing: %zd\n", len
);
1010 iwl_print_hex_dump(priv
, IWL_DL_FW
, (u8
*)data
, len
);
1017 IWL_ERR(priv
, "TLV %d has invalid size: %u\n", tlv_type
, tlv_len
);
1018 iwl_print_hex_dump(priv
, IWL_DL_FW
, tlv_data
, tlv_len
);
1024 * iwl_ucode_callback - callback when firmware was loaded
1026 * If loaded successfully, copies the firmware into buffers
1027 * for the card to fetch (via DMA).
1029 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
)
1031 struct iwl_priv
*priv
= context
;
1032 struct iwl_ucode_header
*ucode
;
1034 struct iwlagn_firmware_pieces pieces
;
1035 const unsigned int api_max
= priv
->cfg
->ucode_api_max
;
1036 unsigned int api_ok
= priv
->cfg
->ucode_api_ok
;
1037 const unsigned int api_min
= priv
->cfg
->ucode_api_min
;
1041 struct iwlagn_ucode_capabilities ucode_capa
= {
1042 .max_probe_length
= 200,
1043 .standard_phy_calibration_size
=
1044 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE
,
1050 memset(&pieces
, 0, sizeof(pieces
));
1053 if (priv
->fw_index
<= api_ok
)
1055 "request for firmware file '%s' failed.\n",
1056 priv
->firmware_name
);
1060 IWL_DEBUG_INFO(priv
, "Loaded firmware file '%s' (%zd bytes).\n",
1061 priv
->firmware_name
, ucode_raw
->size
);
1063 /* Make sure that we got at least the API version number */
1064 if (ucode_raw
->size
< 4) {
1065 IWL_ERR(priv
, "File size way too small!\n");
1069 /* Data from ucode file: header followed by uCode images */
1070 ucode
= (struct iwl_ucode_header
*)ucode_raw
->data
;
1073 err
= iwlagn_load_legacy_firmware(priv
, ucode_raw
, &pieces
);
1075 err
= iwlagn_load_firmware(priv
, ucode_raw
, &pieces
,
1081 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
1082 build
= pieces
.build
;
1085 * api_ver should match the api version forming part of the
1086 * firmware filename ... but we don't check for that and only rely
1087 * on the API version read from firmware header from here on forward
1089 /* no api version check required for experimental uCode */
1090 if (priv
->fw_index
!= UCODE_EXPERIMENTAL_INDEX
) {
1091 if (api_ver
< api_min
|| api_ver
> api_max
) {
1093 "Driver unable to support your firmware API. "
1094 "Driver supports v%u, firmware is v%u.\n",
1099 if (api_ver
< api_ok
) {
1100 if (api_ok
!= api_max
)
1101 IWL_ERR(priv
, "Firmware has old API version, "
1102 "expected v%u through v%u, got v%u.\n",
1103 api_ok
, api_max
, api_ver
);
1105 IWL_ERR(priv
, "Firmware has old API version, "
1106 "expected v%u, got v%u.\n",
1108 IWL_ERR(priv
, "New firmware can be obtained from "
1109 "http://www.intellinuxwireless.org/.\n");
1114 sprintf(buildstr
, " build %u%s", build
,
1115 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
1120 IWL_INFO(priv
, "loaded firmware version %u.%u.%u.%u%s\n",
1121 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1122 IWL_UCODE_MINOR(priv
->ucode_ver
),
1123 IWL_UCODE_API(priv
->ucode_ver
),
1124 IWL_UCODE_SERIAL(priv
->ucode_ver
),
1127 snprintf(priv
->hw
->wiphy
->fw_version
,
1128 sizeof(priv
->hw
->wiphy
->fw_version
),
1130 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1131 IWL_UCODE_MINOR(priv
->ucode_ver
),
1132 IWL_UCODE_API(priv
->ucode_ver
),
1133 IWL_UCODE_SERIAL(priv
->ucode_ver
),
1137 * For any of the failures below (before allocating pci memory)
1138 * we will try to load a version with a smaller API -- maybe the
1139 * user just got a corrupted version of the latest API.
1142 IWL_DEBUG_INFO(priv
, "f/w package hdr ucode version raw = 0x%x\n",
1144 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime inst size = %Zd\n",
1146 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime data size = %Zd\n",
1148 IWL_DEBUG_INFO(priv
, "f/w package hdr init inst size = %Zd\n",
1150 IWL_DEBUG_INFO(priv
, "f/w package hdr init data size = %Zd\n",
1151 pieces
.init_data_size
);
1153 /* Verify that uCode images will fit in card's SRAM */
1154 if (pieces
.inst_size
> hw_params(priv
).max_inst_size
) {
1155 IWL_ERR(priv
, "uCode instr len %Zd too large to fit in\n",
1160 if (pieces
.data_size
> hw_params(priv
).max_data_size
) {
1161 IWL_ERR(priv
, "uCode data len %Zd too large to fit in\n",
1166 if (pieces
.init_size
> hw_params(priv
).max_inst_size
) {
1167 IWL_ERR(priv
, "uCode init instr len %Zd too large to fit in\n",
1172 if (pieces
.init_data_size
> hw_params(priv
).max_data_size
) {
1173 IWL_ERR(priv
, "uCode init data len %Zd too large to fit in\n",
1174 pieces
.init_data_size
);
1178 /* Allocate ucode buffers for card's bus-master loading ... */
1180 /* Runtime instructions and 2 copies of data:
1181 * 1) unmodified from disk
1182 * 2) backup cache for save/restore during power-downs */
1183 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_rt
.code
,
1184 pieces
.inst
, pieces
.inst_size
))
1186 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_rt
.data
,
1187 pieces
.data
, pieces
.data_size
))
1190 /* Initialization instructions and data */
1191 if (pieces
.init_size
&& pieces
.init_data_size
) {
1192 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_init
.code
,
1193 pieces
.init
, pieces
.init_size
))
1195 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_init
.data
,
1196 pieces
.init_data
, pieces
.init_data_size
))
1200 /* WoWLAN instructions and data */
1201 if (pieces
.wowlan_inst_size
&& pieces
.wowlan_data_size
) {
1202 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_wowlan
.code
,
1204 pieces
.wowlan_inst_size
))
1206 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_wowlan
.data
,
1208 pieces
.wowlan_data_size
))
1212 /* Now that we can no longer fail, copy information */
1215 * The (size - 16) / 12 formula is based on the information recorded
1216 * for each event, which is of mode 1 (including timestamp) for all
1217 * new microcodes that include this information.
1219 priv
->init_evtlog_ptr
= pieces
.init_evtlog_ptr
;
1220 if (pieces
.init_evtlog_size
)
1221 priv
->init_evtlog_size
= (pieces
.init_evtlog_size
- 16)/12;
1223 priv
->init_evtlog_size
=
1224 priv
->cfg
->base_params
->max_event_log_size
;
1225 priv
->init_errlog_ptr
= pieces
.init_errlog_ptr
;
1226 priv
->inst_evtlog_ptr
= pieces
.inst_evtlog_ptr
;
1227 if (pieces
.inst_evtlog_size
)
1228 priv
->inst_evtlog_size
= (pieces
.inst_evtlog_size
- 16)/12;
1230 priv
->inst_evtlog_size
=
1231 priv
->cfg
->base_params
->max_event_log_size
;
1232 priv
->inst_errlog_ptr
= pieces
.inst_errlog_ptr
;
1234 priv
->new_scan_threshold_behaviour
=
1235 !!(ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_NEWSCAN
);
1237 if (!(priv
->cfg
->sku
& EEPROM_SKU_CAP_IPAN_ENABLE
))
1238 ucode_capa
.flags
&= ~IWL_UCODE_TLV_FLAGS_PAN
;
1241 * if not PAN, then don't support P2P -- might be a uCode
1242 * packaging bug or due to the eeprom check above
1244 if (!(ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_PAN
))
1245 ucode_capa
.flags
&= ~IWL_UCODE_TLV_FLAGS_P2P
;
1247 if (ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_PAN
) {
1248 priv
->sta_key_max_num
= STA_KEY_MAX_NUM_PAN
;
1249 priv
->shrd
->cmd_queue
= IWL_IPAN_CMD_QUEUE_NUM
;
1251 priv
->sta_key_max_num
= STA_KEY_MAX_NUM
;
1252 priv
->shrd
->cmd_queue
= IWL_DEFAULT_CMD_QUEUE_NUM
;
1256 * figure out the offset of chain noise reset and gain commands
1257 * base on the size of standard phy calibration commands table size
1259 if (ucode_capa
.standard_phy_calibration_size
>
1260 IWL_MAX_PHY_CALIBRATE_TBL_SIZE
)
1261 ucode_capa
.standard_phy_calibration_size
=
1262 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE
;
1264 priv
->phy_calib_chain_noise_reset_cmd
=
1265 ucode_capa
.standard_phy_calibration_size
;
1266 priv
->phy_calib_chain_noise_gain_cmd
=
1267 ucode_capa
.standard_phy_calibration_size
+ 1;
1269 /* initialize all valid contexts */
1270 iwl_init_context(priv
, ucode_capa
.flags
);
1272 /**************************************************
1273 * This is still part of probe() in a sense...
1275 * 9. Setup and register with mac80211 and debugfs
1276 **************************************************/
1277 err
= iwl_mac_setup_register(priv
, &ucode_capa
);
1281 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
1283 IWL_ERR(priv
, "failed to create debugfs files. Ignoring error: %d\n", err
);
1285 err
= sysfs_create_group(&(priv
->bus
->dev
->kobj
),
1286 &iwl_attribute_group
);
1288 IWL_ERR(priv
, "failed to create sysfs device attributes\n");
1292 /* We have our copies now, allow OS release its copies */
1293 release_firmware(ucode_raw
);
1294 complete(&priv
->firmware_loading_complete
);
1298 /* try next, if any */
1299 if (iwl_request_firmware(priv
, false))
1301 release_firmware(ucode_raw
);
1305 IWL_ERR(priv
, "failed to allocate pci memory\n");
1306 iwl_dealloc_ucode(priv
);
1308 complete(&priv
->firmware_loading_complete
);
1309 device_release_driver(priv
->bus
->dev
);
1310 release_firmware(ucode_raw
);
1313 static void iwl_rf_kill_ct_config(struct iwl_priv
*priv
)
1315 struct iwl_ct_kill_config cmd
;
1316 struct iwl_ct_kill_throttling_config adv_cmd
;
1317 unsigned long flags
;
1320 spin_lock_irqsave(&priv
->shrd
->lock
, flags
);
1321 iwl_write32(bus(priv
), CSR_UCODE_DRV_GP1_CLR
,
1322 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
1323 spin_unlock_irqrestore(&priv
->shrd
->lock
, flags
);
1324 priv
->thermal_throttle
.ct_kill_toggle
= false;
1326 if (priv
->cfg
->base_params
->support_ct_kill_exit
) {
1327 adv_cmd
.critical_temperature_enter
=
1328 cpu_to_le32(hw_params(priv
).ct_kill_threshold
);
1329 adv_cmd
.critical_temperature_exit
=
1330 cpu_to_le32(hw_params(priv
).ct_kill_exit_threshold
);
1332 ret
= iwl_trans_send_cmd_pdu(trans(priv
),
1333 REPLY_CT_KILL_CONFIG_CMD
,
1334 CMD_SYNC
, sizeof(adv_cmd
), &adv_cmd
);
1336 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1338 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1339 "succeeded, critical temperature enter is %d,"
1341 hw_params(priv
).ct_kill_threshold
,
1342 hw_params(priv
).ct_kill_exit_threshold
);
1344 cmd
.critical_temperature_R
=
1345 cpu_to_le32(hw_params(priv
).ct_kill_threshold
);
1347 ret
= iwl_trans_send_cmd_pdu(trans(priv
),
1348 REPLY_CT_KILL_CONFIG_CMD
,
1349 CMD_SYNC
, sizeof(cmd
), &cmd
);
1351 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1353 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1355 "critical temperature is %d\n",
1356 hw_params(priv
).ct_kill_threshold
);
1360 static int iwlagn_send_calib_cfg_rt(struct iwl_priv
*priv
, u32 cfg
)
1362 struct iwl_calib_cfg_cmd calib_cfg_cmd
;
1363 struct iwl_host_cmd cmd
= {
1364 .id
= CALIBRATION_CFG_CMD
,
1365 .len
= { sizeof(struct iwl_calib_cfg_cmd
), },
1366 .data
= { &calib_cfg_cmd
, },
1369 memset(&calib_cfg_cmd
, 0, sizeof(calib_cfg_cmd
));
1370 calib_cfg_cmd
.ucd_calib_cfg
.once
.is_enable
= IWL_CALIB_INIT_CFG_ALL
;
1371 calib_cfg_cmd
.ucd_calib_cfg
.once
.start
= cpu_to_le32(cfg
);
1373 return iwl_trans_send_cmd(trans(priv
), &cmd
);
1377 static int iwlagn_send_tx_ant_config(struct iwl_priv
*priv
, u8 valid_tx_ant
)
1379 struct iwl_tx_ant_config_cmd tx_ant_cmd
= {
1380 .valid
= cpu_to_le32(valid_tx_ant
),
1383 if (IWL_UCODE_API(priv
->ucode_ver
) > 1) {
1384 IWL_DEBUG_HC(priv
, "select valid tx ant: %u\n", valid_tx_ant
);
1385 return iwl_trans_send_cmd_pdu(trans(priv
),
1386 TX_ANT_CONFIGURATION_CMD
,
1388 sizeof(struct iwl_tx_ant_config_cmd
),
1391 IWL_DEBUG_HC(priv
, "TX_ANT_CONFIGURATION_CMD not supported\n");
1397 * iwl_alive_start - called after REPLY_ALIVE notification received
1398 * from protocol/runtime uCode (initialization uCode's
1399 * Alive gets handled by iwl_init_alive_start()).
1401 int iwl_alive_start(struct iwl_priv
*priv
)
1404 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
1406 /*TODO: this should go to the transport layer */
1407 iwl_reset_ict(trans(priv
));
1409 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
1411 /* After the ALIVE response, we can send host commands to the uCode */
1412 set_bit(STATUS_ALIVE
, &priv
->shrd
->status
);
1414 /* Enable watchdog to monitor the driver tx queues */
1415 iwl_setup_watchdog(priv
);
1417 if (iwl_is_rfkill(priv
->shrd
))
1420 /* download priority table before any calibration request */
1421 if (priv
->cfg
->bt_params
&&
1422 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
1423 /* Configure Bluetooth device coexistence support */
1424 if (priv
->cfg
->bt_params
->bt_sco_disable
)
1425 priv
->bt_enable_pspoll
= false;
1427 priv
->bt_enable_pspoll
= true;
1429 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
1430 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
1431 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
1432 iwlagn_send_advance_bt_config(priv
);
1433 priv
->bt_valid
= IWLAGN_BT_VALID_ENABLE_FLAGS
;
1434 priv
->cur_rssi_ctx
= NULL
;
1436 iwlagn_send_prio_tbl(priv
);
1438 /* FIXME: w/a to force change uCode BT state machine */
1439 ret
= iwlagn_send_bt_env(priv
, IWL_BT_COEX_ENV_OPEN
,
1440 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
1443 ret
= iwlagn_send_bt_env(priv
, IWL_BT_COEX_ENV_CLOSE
,
1444 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
1449 * default is 2-wire BT coexexistence support
1451 iwl_send_bt_config(priv
);
1454 if (hw_params(priv
).calib_rt_cfg
)
1455 iwlagn_send_calib_cfg_rt(priv
,
1456 hw_params(priv
).calib_rt_cfg
);
1458 ieee80211_wake_queues(priv
->hw
);
1460 priv
->active_rate
= IWL_RATES_MASK
;
1462 /* Configure Tx antenna selection based on H/W config */
1463 iwlagn_send_tx_ant_config(priv
, priv
->cfg
->valid_tx_ant
);
1465 if (iwl_is_associated_ctx(ctx
) && !priv
->shrd
->wowlan
) {
1466 struct iwl_rxon_cmd
*active_rxon
=
1467 (struct iwl_rxon_cmd
*)&ctx
->active
;
1468 /* apply any changes in staging */
1469 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
1470 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1472 struct iwl_rxon_context
*tmp
;
1473 /* Initialize our rx_config data */
1474 for_each_context(priv
, tmp
)
1475 iwl_connection_init_rx_config(priv
, tmp
);
1477 iwlagn_set_rxon_chain(priv
, ctx
);
1480 if (!priv
->shrd
->wowlan
) {
1481 /* WoWLAN ucode will not reply in the same way, skip it */
1482 iwl_reset_run_time_calib(priv
);
1485 set_bit(STATUS_READY
, &priv
->shrd
->status
);
1487 /* Configure the adapter for unassociated operation */
1488 ret
= iwlagn_commit_rxon(priv
, ctx
);
1492 /* At this point, the NIC is initialized and operational */
1493 iwl_rf_kill_ct_config(priv
);
1495 IWL_DEBUG_INFO(priv
, "ALIVE processing complete.\n");
1497 return iwl_power_update_mode(priv
, true);
1500 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
);
1502 static void __iwl_down(struct iwl_priv
*priv
)
1506 IWL_DEBUG_INFO(priv
, DRV_NAME
" is going down\n");
1508 iwl_scan_cancel_timeout(priv
, 200);
1511 * If active, scanning won't cancel it, so say it expired.
1512 * No race since we hold the mutex here and a new one
1513 * can't come in at this time.
1515 ieee80211_remain_on_channel_expired(priv
->hw
);
1518 test_and_set_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
1520 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
1521 * to prevent rearm timer */
1522 del_timer_sync(&priv
->watchdog
);
1524 iwl_clear_ucode_stations(priv
, NULL
);
1525 iwl_dealloc_bcast_stations(priv
);
1526 iwl_clear_driver_stations(priv
);
1528 /* reset BT coex data */
1529 priv
->bt_status
= 0;
1530 priv
->cur_rssi_ctx
= NULL
;
1531 priv
->bt_is_sco
= 0;
1532 if (priv
->cfg
->bt_params
)
1533 priv
->bt_traffic_load
=
1534 priv
->cfg
->bt_params
->bt_init_traffic_load
;
1536 priv
->bt_traffic_load
= 0;
1537 priv
->bt_full_concurrent
= false;
1538 priv
->bt_ci_compliance
= 0;
1540 /* Wipe out the EXIT_PENDING status bit if we are not actually
1541 * exiting the module */
1543 clear_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
1545 if (priv
->mac80211_registered
)
1546 ieee80211_stop_queues(priv
->hw
);
1548 /* Clear out all status bits but a few that are stable across reset */
1549 priv
->shrd
->status
&=
1550 test_bit(STATUS_RF_KILL_HW
, &priv
->shrd
->status
) <<
1552 test_bit(STATUS_GEO_CONFIGURED
, &priv
->shrd
->status
) <<
1553 STATUS_GEO_CONFIGURED
|
1554 test_bit(STATUS_FW_ERROR
, &priv
->shrd
->status
) <<
1556 test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
) <<
1557 STATUS_EXIT_PENDING
;
1559 iwl_trans_stop_device(trans(priv
));
1561 dev_kfree_skb(priv
->beacon_skb
);
1562 priv
->beacon_skb
= NULL
;
1565 static void iwl_down(struct iwl_priv
*priv
)
1567 mutex_lock(&priv
->shrd
->mutex
);
1569 mutex_unlock(&priv
->shrd
->mutex
);
1571 iwl_cancel_deferred_work(priv
);
1574 #define MAX_HW_RESTARTS 5
1576 static int __iwl_up(struct iwl_priv
*priv
)
1578 struct iwl_rxon_context
*ctx
;
1581 lockdep_assert_held(&priv
->shrd
->mutex
);
1583 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
)) {
1584 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
1588 for_each_context(priv
, ctx
) {
1589 ret
= iwlagn_alloc_bcast_station(priv
, ctx
);
1591 iwl_dealloc_bcast_stations(priv
);
1596 ret
= iwlagn_run_init_ucode(priv
);
1598 IWL_ERR(priv
, "Failed to run INIT ucode: %d\n", ret
);
1602 ret
= iwlagn_load_ucode_wait_alive(priv
,
1606 IWL_ERR(priv
, "Failed to start RT ucode: %d\n", ret
);
1610 ret
= iwl_alive_start(priv
);
1616 set_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
1618 clear_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
1620 IWL_ERR(priv
, "Unable to initialize device.\n");
1625 /*****************************************************************************
1627 * Workqueue callbacks
1629 *****************************************************************************/
1631 static void iwl_bg_run_time_calib_work(struct work_struct
*work
)
1633 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
1634 run_time_calib_work
);
1636 mutex_lock(&priv
->shrd
->mutex
);
1638 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
) ||
1639 test_bit(STATUS_SCANNING
, &priv
->shrd
->status
)) {
1640 mutex_unlock(&priv
->shrd
->mutex
);
1644 if (priv
->start_calib
) {
1645 iwl_chain_noise_calibration(priv
);
1646 iwl_sensitivity_calibration(priv
);
1649 mutex_unlock(&priv
->shrd
->mutex
);
1652 static void iwlagn_prepare_restart(struct iwl_priv
*priv
)
1654 struct iwl_rxon_context
*ctx
;
1655 bool bt_full_concurrent
;
1656 u8 bt_ci_compliance
;
1661 lockdep_assert_held(&priv
->shrd
->mutex
);
1663 for_each_context(priv
, ctx
)
1668 * __iwl_down() will clear the BT status variables,
1669 * which is correct, but when we restart we really
1670 * want to keep them so restore them afterwards.
1672 * The restart process will later pick them up and
1673 * re-configure the hw when we reconfigure the BT
1676 bt_full_concurrent
= priv
->bt_full_concurrent
;
1677 bt_ci_compliance
= priv
->bt_ci_compliance
;
1678 bt_load
= priv
->bt_traffic_load
;
1679 bt_status
= priv
->bt_status
;
1680 bt_is_sco
= priv
->bt_is_sco
;
1684 priv
->bt_full_concurrent
= bt_full_concurrent
;
1685 priv
->bt_ci_compliance
= bt_ci_compliance
;
1686 priv
->bt_traffic_load
= bt_load
;
1687 priv
->bt_status
= bt_status
;
1688 priv
->bt_is_sco
= bt_is_sco
;
1691 static void iwl_bg_restart(struct work_struct
*data
)
1693 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
1695 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
1698 if (test_and_clear_bit(STATUS_FW_ERROR
, &priv
->shrd
->status
)) {
1699 mutex_lock(&priv
->shrd
->mutex
);
1700 iwlagn_prepare_restart(priv
);
1701 mutex_unlock(&priv
->shrd
->mutex
);
1702 iwl_cancel_deferred_work(priv
);
1703 ieee80211_restart_hw(priv
->hw
);
1709 /*****************************************************************************
1711 * mac80211 entry point functions
1713 *****************************************************************************/
1715 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits
[] = {
1718 .types
= BIT(NL80211_IFTYPE_STATION
),
1722 .types
= BIT(NL80211_IFTYPE_AP
),
1726 static const struct ieee80211_iface_limit iwlagn_2sta_limits
[] = {
1729 .types
= BIT(NL80211_IFTYPE_STATION
),
1733 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits
[] = {
1736 .types
= BIT(NL80211_IFTYPE_STATION
),
1740 .types
= BIT(NL80211_IFTYPE_P2P_GO
) |
1741 BIT(NL80211_IFTYPE_AP
),
1745 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits
[] = {
1748 .types
= BIT(NL80211_IFTYPE_STATION
),
1752 .types
= BIT(NL80211_IFTYPE_P2P_CLIENT
),
1756 static const struct ieee80211_iface_combination
1757 iwlagn_iface_combinations_dualmode
[] = {
1758 { .num_different_channels
= 1,
1759 .max_interfaces
= 2,
1760 .beacon_int_infra_match
= true,
1761 .limits
= iwlagn_sta_ap_limits
,
1762 .n_limits
= ARRAY_SIZE(iwlagn_sta_ap_limits
),
1764 { .num_different_channels
= 1,
1765 .max_interfaces
= 2,
1766 .limits
= iwlagn_2sta_limits
,
1767 .n_limits
= ARRAY_SIZE(iwlagn_2sta_limits
),
1771 static const struct ieee80211_iface_combination
1772 iwlagn_iface_combinations_p2p
[] = {
1773 { .num_different_channels
= 1,
1774 .max_interfaces
= 2,
1775 .beacon_int_infra_match
= true,
1776 .limits
= iwlagn_p2p_sta_go_limits
,
1777 .n_limits
= ARRAY_SIZE(iwlagn_p2p_sta_go_limits
),
1779 { .num_different_channels
= 1,
1780 .max_interfaces
= 2,
1781 .limits
= iwlagn_p2p_2sta_limits
,
1782 .n_limits
= ARRAY_SIZE(iwlagn_p2p_2sta_limits
),
1787 * Not a mac80211 entry point function, but it fits in with all the
1788 * other mac80211 functions grouped here.
1790 static int iwl_mac_setup_register(struct iwl_priv
*priv
,
1791 struct iwlagn_ucode_capabilities
*capa
)
1794 struct ieee80211_hw
*hw
= priv
->hw
;
1795 struct iwl_rxon_context
*ctx
;
1797 hw
->rate_control_algorithm
= "iwl-agn-rs";
1799 /* Tell mac80211 our characteristics */
1800 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
1801 IEEE80211_HW_AMPDU_AGGREGATION
|
1802 IEEE80211_HW_NEED_DTIM_PERIOD
|
1803 IEEE80211_HW_SPECTRUM_MGMT
|
1804 IEEE80211_HW_REPORTS_TX_ACK_STATUS
;
1806 hw
->max_tx_aggregation_subframes
= LINK_QUAL_AGG_FRAME_LIMIT_DEF
;
1808 hw
->flags
|= IEEE80211_HW_SUPPORTS_PS
|
1809 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
;
1811 if (priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
)
1812 hw
->flags
|= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
1813 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
1815 if (capa
->flags
& IWL_UCODE_TLV_FLAGS_MFP
)
1816 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
1818 hw
->sta_data_size
= sizeof(struct iwl_station_priv
);
1819 hw
->vif_data_size
= sizeof(struct iwl_vif_priv
);
1821 for_each_context(priv
, ctx
) {
1822 hw
->wiphy
->interface_modes
|= ctx
->interface_modes
;
1823 hw
->wiphy
->interface_modes
|= ctx
->exclusive_interface_modes
;
1826 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
1828 if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)) {
1829 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_p2p
;
1830 hw
->wiphy
->n_iface_combinations
=
1831 ARRAY_SIZE(iwlagn_iface_combinations_p2p
);
1832 } else if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_AP
)) {
1833 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_dualmode
;
1834 hw
->wiphy
->n_iface_combinations
=
1835 ARRAY_SIZE(iwlagn_iface_combinations_dualmode
);
1838 hw
->wiphy
->max_remain_on_channel_duration
= 1000;
1840 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
|
1841 WIPHY_FLAG_DISABLE_BEACON_HINTS
|
1842 WIPHY_FLAG_IBSS_RSN
;
1844 if (priv
->ucode_wowlan
.code
.len
&& device_can_wakeup(priv
->bus
->dev
)) {
1845 hw
->wiphy
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
1846 WIPHY_WOWLAN_DISCONNECT
|
1847 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
1848 WIPHY_WOWLAN_RFKILL_RELEASE
;
1849 if (!iwlagn_mod_params
.sw_crypto
)
1850 hw
->wiphy
->wowlan
.flags
|=
1851 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
1852 WIPHY_WOWLAN_GTK_REKEY_FAILURE
;
1854 hw
->wiphy
->wowlan
.n_patterns
= IWLAGN_WOWLAN_MAX_PATTERNS
;
1855 hw
->wiphy
->wowlan
.pattern_min_len
=
1856 IWLAGN_WOWLAN_MIN_PATTERN_LEN
;
1857 hw
->wiphy
->wowlan
.pattern_max_len
=
1858 IWLAGN_WOWLAN_MAX_PATTERN_LEN
;
1861 if (iwlagn_mod_params
.power_save
)
1862 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
1864 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
1866 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
1867 /* we create the 802.11 header and a zero-length SSID element */
1868 hw
->wiphy
->max_scan_ie_len
= capa
->max_probe_length
- 24 - 2;
1870 /* Default value; 4 EDCA QOS priorities */
1873 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
1875 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
1876 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
1877 &priv
->bands
[IEEE80211_BAND_2GHZ
];
1878 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
1879 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
1880 &priv
->bands
[IEEE80211_BAND_5GHZ
];
1882 iwl_leds_init(priv
);
1884 ret
= ieee80211_register_hw(priv
->hw
);
1886 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
1889 priv
->mac80211_registered
= 1;
1895 static int iwlagn_mac_start(struct ieee80211_hw
*hw
)
1897 struct iwl_priv
*priv
= hw
->priv
;
1900 IWL_DEBUG_MAC80211(priv
, "enter\n");
1902 /* we should be verifying the device is ready to be opened */
1903 mutex_lock(&priv
->shrd
->mutex
);
1904 ret
= __iwl_up(priv
);
1905 mutex_unlock(&priv
->shrd
->mutex
);
1909 IWL_DEBUG_INFO(priv
, "Start UP work done.\n");
1911 /* Now we should be done, and the READY bit should be set. */
1912 if (WARN_ON(!test_bit(STATUS_READY
, &priv
->shrd
->status
)))
1915 iwlagn_led_enable(priv
);
1918 IWL_DEBUG_MAC80211(priv
, "leave\n");
1922 static void iwlagn_mac_stop(struct ieee80211_hw
*hw
)
1924 struct iwl_priv
*priv
= hw
->priv
;
1926 IWL_DEBUG_MAC80211(priv
, "enter\n");
1935 flush_workqueue(priv
->shrd
->workqueue
);
1937 /* User space software may expect getting rfkill changes
1938 * even if interface is down */
1939 iwl_write32(bus(priv
), CSR_INT
, 0xFFFFFFFF);
1940 iwl_enable_rfkill_int(priv
);
1942 IWL_DEBUG_MAC80211(priv
, "leave\n");
1946 static int iwlagn_send_patterns(struct iwl_priv
*priv
,
1947 struct cfg80211_wowlan
*wowlan
)
1949 struct iwlagn_wowlan_patterns_cmd
*pattern_cmd
;
1950 struct iwl_host_cmd cmd
= {
1951 .id
= REPLY_WOWLAN_PATTERNS
,
1952 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
1957 if (!wowlan
->n_patterns
)
1960 cmd
.len
[0] = sizeof(*pattern_cmd
) +
1961 wowlan
->n_patterns
* sizeof(struct iwlagn_wowlan_pattern
);
1963 pattern_cmd
= kmalloc(cmd
.len
[0], GFP_KERNEL
);
1967 pattern_cmd
->n_patterns
= cpu_to_le32(wowlan
->n_patterns
);
1969 for (i
= 0; i
< wowlan
->n_patterns
; i
++) {
1970 int mask_len
= DIV_ROUND_UP(wowlan
->patterns
[i
].pattern_len
, 8);
1972 memcpy(&pattern_cmd
->patterns
[i
].mask
,
1973 wowlan
->patterns
[i
].mask
, mask_len
);
1974 memcpy(&pattern_cmd
->patterns
[i
].pattern
,
1975 wowlan
->patterns
[i
].pattern
,
1976 wowlan
->patterns
[i
].pattern_len
);
1977 pattern_cmd
->patterns
[i
].mask_size
= mask_len
;
1978 pattern_cmd
->patterns
[i
].pattern_size
=
1979 wowlan
->patterns
[i
].pattern_len
;
1982 cmd
.data
[0] = pattern_cmd
;
1983 err
= iwl_trans_send_cmd(trans(priv
), &cmd
);
1989 static void iwlagn_mac_set_rekey_data(struct ieee80211_hw
*hw
,
1990 struct ieee80211_vif
*vif
,
1991 struct cfg80211_gtk_rekey_data
*data
)
1993 struct iwl_priv
*priv
= hw
->priv
;
1995 if (iwlagn_mod_params
.sw_crypto
)
1998 mutex_lock(&priv
->shrd
->mutex
);
2000 if (priv
->contexts
[IWL_RXON_CTX_BSS
].vif
!= vif
)
2003 memcpy(priv
->kek
, data
->kek
, NL80211_KEK_LEN
);
2004 memcpy(priv
->kck
, data
->kck
, NL80211_KCK_LEN
);
2005 priv
->replay_ctr
= cpu_to_le64(be64_to_cpup((__be64
*)&data
->replay_ctr
));
2006 priv
->have_rekey_data
= true;
2009 mutex_unlock(&priv
->shrd
->mutex
);
2012 struct wowlan_key_data
{
2013 struct iwl_rxon_context
*ctx
;
2014 struct iwlagn_wowlan_rsc_tsc_params_cmd
*rsc_tsc
;
2015 struct iwlagn_wowlan_tkip_params_cmd
*tkip
;
2017 bool error
, use_rsc_tsc
, use_tkip
;
2021 static void iwlagn_convert_p1k(u16
*p1k
, __le16
*out
)
2025 for (i
= 0; i
< IWLAGN_P1K_SIZE
; i
++)
2026 out
[i
] = cpu_to_le16(p1k
[i
]);
2029 static void iwlagn_wowlan_program_keys(struct ieee80211_hw
*hw
,
2030 struct ieee80211_vif
*vif
,
2031 struct ieee80211_sta
*sta
,
2032 struct ieee80211_key_conf
*key
,
2035 struct iwl_priv
*priv
= hw
->priv
;
2036 struct wowlan_key_data
*data
= _data
;
2037 struct iwl_rxon_context
*ctx
= data
->ctx
;
2038 struct aes_sc
*aes_sc
, *aes_tx_sc
= NULL
;
2039 struct tkip_sc
*tkip_sc
, *tkip_tx_sc
= NULL
;
2040 struct iwlagn_p1k_cache
*rx_p1ks
;
2042 struct ieee80211_key_seq seq
;
2043 u32 cur_rx_iv32
= 0;
2044 u16 p1k
[IWLAGN_P1K_SIZE
];
2047 mutex_lock(&priv
->shrd
->mutex
);
2049 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
2050 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) &&
2051 !sta
&& !ctx
->key_mapping_keys
)
2052 ret
= iwl_set_default_wep_key(priv
, ctx
, key
);
2054 ret
= iwl_set_dynamic_key(priv
, ctx
, key
, sta
);
2057 IWL_ERR(priv
, "Error setting key during suspend!\n");
2061 switch (key
->cipher
) {
2062 case WLAN_CIPHER_SUITE_TKIP
:
2064 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.unicast_rsc
;
2065 tkip_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.tkip
.tsc
;
2067 rx_p1ks
= data
->tkip
->rx_uni
;
2069 ieee80211_get_key_tx_seq(key
, &seq
);
2070 tkip_tx_sc
->iv16
= cpu_to_le16(seq
.tkip
.iv16
);
2071 tkip_tx_sc
->iv32
= cpu_to_le32(seq
.tkip
.iv32
);
2073 ieee80211_get_tkip_p1k_iv(key
, seq
.tkip
.iv32
, p1k
);
2074 iwlagn_convert_p1k(p1k
, data
->tkip
->tx
.p1k
);
2076 memcpy(data
->tkip
->mic_keys
.tx
,
2077 &key
->key
[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY
],
2078 IWLAGN_MIC_KEY_SIZE
);
2080 rx_mic_key
= data
->tkip
->mic_keys
.rx_unicast
;
2082 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.multicast_rsc
;
2083 rx_p1ks
= data
->tkip
->rx_multi
;
2084 rx_mic_key
= data
->tkip
->mic_keys
.rx_mcast
;
2088 * For non-QoS this relies on the fact that both the uCode and
2089 * mac80211 use TID 0 (as they need to to avoid replay attacks)
2090 * for checking the IV in the frames.
2092 for (i
= 0; i
< IWLAGN_NUM_RSC
; i
++) {
2093 ieee80211_get_key_rx_seq(key
, i
, &seq
);
2094 tkip_sc
[i
].iv16
= cpu_to_le16(seq
.tkip
.iv16
);
2095 tkip_sc
[i
].iv32
= cpu_to_le32(seq
.tkip
.iv32
);
2096 /* wrapping isn't allowed, AP must rekey */
2097 if (seq
.tkip
.iv32
> cur_rx_iv32
)
2098 cur_rx_iv32
= seq
.tkip
.iv32
;
2101 ieee80211_get_tkip_rx_p1k(key
, data
->bssid
, cur_rx_iv32
, p1k
);
2102 iwlagn_convert_p1k(p1k
, rx_p1ks
[0].p1k
);
2103 ieee80211_get_tkip_rx_p1k(key
, data
->bssid
,
2104 cur_rx_iv32
+ 1, p1k
);
2105 iwlagn_convert_p1k(p1k
, rx_p1ks
[1].p1k
);
2108 &key
->key
[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
],
2109 IWLAGN_MIC_KEY_SIZE
);
2111 data
->use_tkip
= true;
2112 data
->use_rsc_tsc
= true;
2114 case WLAN_CIPHER_SUITE_CCMP
:
2116 u8
*pn
= seq
.ccmp
.pn
;
2118 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.unicast_rsc
;
2119 aes_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.aes
.tsc
;
2121 ieee80211_get_key_tx_seq(key
, &seq
);
2122 aes_tx_sc
->pn
= cpu_to_le64(
2125 ((u64
)pn
[3] << 16) |
2126 ((u64
)pn
[2] << 24) |
2127 ((u64
)pn
[1] << 32) |
2128 ((u64
)pn
[0] << 40));
2130 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.multicast_rsc
;
2133 * For non-QoS this relies on the fact that both the uCode and
2134 * mac80211 use TID 0 for checking the IV in the frames.
2136 for (i
= 0; i
< IWLAGN_NUM_RSC
; i
++) {
2137 u8
*pn
= seq
.ccmp
.pn
;
2139 ieee80211_get_key_rx_seq(key
, i
, &seq
);
2140 aes_sc
->pn
= cpu_to_le64(
2143 ((u64
)pn
[3] << 16) |
2144 ((u64
)pn
[2] << 24) |
2145 ((u64
)pn
[1] << 32) |
2146 ((u64
)pn
[0] << 40));
2148 data
->use_rsc_tsc
= true;
2152 mutex_unlock(&priv
->shrd
->mutex
);
2155 static int iwlagn_mac_suspend(struct ieee80211_hw
*hw
,
2156 struct cfg80211_wowlan
*wowlan
)
2158 struct iwl_priv
*priv
= hw
->priv
;
2159 struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd
;
2160 struct iwl_rxon_cmd rxon
;
2161 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2162 struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd
;
2163 struct iwlagn_wowlan_tkip_params_cmd tkip_cmd
= {};
2164 struct wowlan_key_data key_data
= {
2166 .bssid
= ctx
->active
.bssid_addr
,
2167 .use_rsc_tsc
= false,
2174 if (WARN_ON(!wowlan
))
2177 mutex_lock(&priv
->shrd
->mutex
);
2179 /* Don't attempt WoWLAN when not associated, tear down instead. */
2180 if (!ctx
->vif
|| ctx
->vif
->type
!= NL80211_IFTYPE_STATION
||
2181 !iwl_is_associated_ctx(ctx
)) {
2186 key_data
.rsc_tsc
= kzalloc(sizeof(*key_data
.rsc_tsc
), GFP_KERNEL
);
2187 if (!key_data
.rsc_tsc
) {
2192 memset(&wakeup_filter_cmd
, 0, sizeof(wakeup_filter_cmd
));
2195 * We know the last used seqno, and the uCode expects to know that
2196 * one, it will increment before TX.
2198 seq
= le16_to_cpu(priv
->last_seq_ctl
) & IEEE80211_SCTL_SEQ
;
2199 wakeup_filter_cmd
.non_qos_seq
= cpu_to_le16(seq
);
2202 * For QoS counters, we store the one to use next, so subtract 0x10
2203 * since the uCode will add 0x10 before using the value.
2205 for (i
= 0; i
< 8; i
++) {
2206 seq
= priv
->shrd
->tid_data
[IWL_AP_ID
][i
].seq_number
;
2208 wakeup_filter_cmd
.qos_seq
[i
] = cpu_to_le16(seq
);
2211 if (wowlan
->disconnect
)
2212 wakeup_filter_cmd
.enabled
|=
2213 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS
|
2214 IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE
);
2215 if (wowlan
->magic_pkt
)
2216 wakeup_filter_cmd
.enabled
|=
2217 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET
);
2218 if (wowlan
->gtk_rekey_failure
)
2219 wakeup_filter_cmd
.enabled
|=
2220 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL
);
2221 if (wowlan
->eap_identity_req
)
2222 wakeup_filter_cmd
.enabled
|=
2223 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ
);
2224 if (wowlan
->four_way_handshake
)
2225 wakeup_filter_cmd
.enabled
|=
2226 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE
);
2227 if (wowlan
->rfkill_release
)
2228 wakeup_filter_cmd
.enabled
|=
2229 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_RFKILL
);
2230 if (wowlan
->n_patterns
)
2231 wakeup_filter_cmd
.enabled
|=
2232 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH
);
2234 iwl_scan_cancel_timeout(priv
, 200);
2236 memcpy(&rxon
, &ctx
->active
, sizeof(rxon
));
2238 iwl_trans_stop_device(trans(priv
));
2240 priv
->shrd
->wowlan
= true;
2242 ret
= iwlagn_load_ucode_wait_alive(priv
, &priv
->ucode_wowlan
,
2247 /* now configure WoWLAN ucode */
2248 ret
= iwl_alive_start(priv
);
2252 memcpy(&ctx
->staging
, &rxon
, sizeof(rxon
));
2253 ret
= iwlagn_commit_rxon(priv
, ctx
);
2257 ret
= iwl_power_update_mode(priv
, true);
2261 if (!iwlagn_mod_params
.sw_crypto
) {
2262 /* mark all keys clear */
2263 priv
->ucode_key_table
= 0;
2264 ctx
->key_mapping_keys
= 0;
2267 * This needs to be unlocked due to lock ordering
2268 * constraints. Since we're in the suspend path
2269 * that isn't really a problem though.
2271 mutex_unlock(&priv
->shrd
->mutex
);
2272 ieee80211_iter_keys(priv
->hw
, ctx
->vif
,
2273 iwlagn_wowlan_program_keys
,
2275 mutex_lock(&priv
->shrd
->mutex
);
2276 if (key_data
.error
) {
2281 if (key_data
.use_rsc_tsc
) {
2282 struct iwl_host_cmd rsc_tsc_cmd
= {
2283 .id
= REPLY_WOWLAN_TSC_RSC_PARAMS
,
2285 .data
[0] = key_data
.rsc_tsc
,
2286 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
2287 .len
[0] = sizeof(*key_data
.rsc_tsc
),
2290 ret
= iwl_trans_send_cmd(trans(priv
), &rsc_tsc_cmd
);
2295 if (key_data
.use_tkip
) {
2296 ret
= iwl_trans_send_cmd_pdu(trans(priv
),
2297 REPLY_WOWLAN_TKIP_PARAMS
,
2298 CMD_SYNC
, sizeof(tkip_cmd
),
2304 if (priv
->have_rekey_data
) {
2305 memset(&kek_kck_cmd
, 0, sizeof(kek_kck_cmd
));
2306 memcpy(kek_kck_cmd
.kck
, priv
->kck
, NL80211_KCK_LEN
);
2307 kek_kck_cmd
.kck_len
= cpu_to_le16(NL80211_KCK_LEN
);
2308 memcpy(kek_kck_cmd
.kek
, priv
->kek
, NL80211_KEK_LEN
);
2309 kek_kck_cmd
.kek_len
= cpu_to_le16(NL80211_KEK_LEN
);
2310 kek_kck_cmd
.replay_ctr
= priv
->replay_ctr
;
2312 ret
= iwl_trans_send_cmd_pdu(trans(priv
),
2313 REPLY_WOWLAN_KEK_KCK_MATERIAL
,
2314 CMD_SYNC
, sizeof(kek_kck_cmd
),
2321 ret
= iwl_trans_send_cmd_pdu(trans(priv
), REPLY_WOWLAN_WAKEUP_FILTER
,
2322 CMD_SYNC
, sizeof(wakeup_filter_cmd
),
2323 &wakeup_filter_cmd
);
2327 ret
= iwlagn_send_patterns(priv
, wowlan
);
2331 device_set_wakeup_enable(priv
->bus
->dev
, true);
2333 /* Now let the ucode operate on its own */
2334 iwl_write32(bus(priv
), CSR_UCODE_DRV_GP1_SET
,
2335 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE
);
2340 priv
->shrd
->wowlan
= false;
2341 iwlagn_prepare_restart(priv
);
2342 ieee80211_restart_hw(priv
->hw
);
2344 mutex_unlock(&priv
->shrd
->mutex
);
2345 kfree(key_data
.rsc_tsc
);
2349 static int iwlagn_mac_resume(struct ieee80211_hw
*hw
)
2351 struct iwl_priv
*priv
= hw
->priv
;
2352 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2353 struct ieee80211_vif
*vif
;
2354 unsigned long flags
;
2355 u32 base
, status
= 0xffffffff;
2358 mutex_lock(&priv
->shrd
->mutex
);
2360 iwl_write32(bus(priv
), CSR_UCODE_DRV_GP1_CLR
,
2361 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE
);
2363 base
= priv
->device_pointers
.error_event_table
;
2364 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
2365 spin_lock_irqsave(&bus(priv
)->reg_lock
, flags
);
2366 ret
= iwl_grab_nic_access_silent(bus(priv
));
2368 iwl_write32(bus(priv
), HBUS_TARG_MEM_RADDR
, base
);
2369 status
= iwl_read32(bus(priv
), HBUS_TARG_MEM_RDAT
);
2370 iwl_release_nic_access(bus(priv
));
2372 spin_unlock_irqrestore(&bus(priv
)->reg_lock
, flags
);
2374 #ifdef CONFIG_IWLWIFI_DEBUGFS
2376 if (!priv
->wowlan_sram
)
2378 kzalloc(priv
->ucode_wowlan
.data
.len
,
2381 if (priv
->wowlan_sram
)
2382 _iwl_read_targ_mem_words(
2383 bus(priv
), 0x800000, priv
->wowlan_sram
,
2384 priv
->ucode_wowlan
.data
.len
/ 4);
2389 /* we'll clear ctx->vif during iwlagn_prepare_restart() */
2392 priv
->shrd
->wowlan
= false;
2394 device_set_wakeup_enable(priv
->bus
->dev
, false);
2396 iwlagn_prepare_restart(priv
);
2398 memset((void *)&ctx
->active
, 0, sizeof(ctx
->active
));
2399 iwl_connection_init_rx_config(priv
, ctx
);
2400 iwlagn_set_rxon_chain(priv
, ctx
);
2402 mutex_unlock(&priv
->shrd
->mutex
);
2404 ieee80211_resume_disconnect(vif
);
2410 static void iwlagn_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
2412 struct iwl_priv
*priv
= hw
->priv
;
2414 IWL_DEBUG_MACDUMP(priv
, "enter\n");
2416 IWL_DEBUG_TX(priv
, "dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
2417 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
2419 if (iwlagn_tx_skb(priv
, skb
))
2420 dev_kfree_skb_any(skb
);
2422 IWL_DEBUG_MACDUMP(priv
, "leave\n");
2425 static void iwlagn_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2426 struct ieee80211_vif
*vif
,
2427 struct ieee80211_key_conf
*keyconf
,
2428 struct ieee80211_sta
*sta
,
2429 u32 iv32
, u16
*phase1key
)
2431 struct iwl_priv
*priv
= hw
->priv
;
2433 iwl_update_tkip_key(priv
, vif
, keyconf
, sta
, iv32
, phase1key
);
2436 static int iwlagn_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
2437 struct ieee80211_vif
*vif
,
2438 struct ieee80211_sta
*sta
,
2439 struct ieee80211_key_conf
*key
)
2441 struct iwl_priv
*priv
= hw
->priv
;
2442 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2443 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
2445 bool is_default_wep_key
= false;
2447 IWL_DEBUG_MAC80211(priv
, "enter\n");
2449 if (iwlagn_mod_params
.sw_crypto
) {
2450 IWL_DEBUG_MAC80211(priv
, "leave - hwcrypto disabled\n");
2455 * We could program these keys into the hardware as well, but we
2456 * don't expect much multicast traffic in IBSS and having keys
2457 * for more stations is probably more useful.
2459 * Mark key TX-only and return 0.
2461 if (vif
->type
== NL80211_IFTYPE_ADHOC
&&
2462 !(key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)) {
2463 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
2467 /* If they key was TX-only, accept deletion */
2468 if (cmd
== DISABLE_KEY
&& key
->hw_key_idx
== WEP_INVALID_OFFSET
)
2471 mutex_lock(&priv
->shrd
->mutex
);
2472 iwl_scan_cancel_timeout(priv
, 100);
2474 BUILD_BUG_ON(WEP_INVALID_OFFSET
== IWLAGN_HW_KEY_DEFAULT
);
2477 * If we are getting WEP group key and we didn't receive any key mapping
2478 * so far, we are in legacy wep mode (group key only), otherwise we are
2480 * In legacy wep mode, we use another host command to the uCode.
2482 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
2483 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) && !sta
) {
2485 is_default_wep_key
= !ctx
->key_mapping_keys
;
2487 is_default_wep_key
=
2488 key
->hw_key_idx
== IWLAGN_HW_KEY_DEFAULT
;
2494 if (is_default_wep_key
) {
2495 ret
= iwl_set_default_wep_key(priv
, vif_priv
->ctx
, key
);
2498 ret
= iwl_set_dynamic_key(priv
, vif_priv
->ctx
, key
, sta
);
2501 * can't add key for RX, but we don't need it
2502 * in the device for TX so still return 0
2505 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
2508 IWL_DEBUG_MAC80211(priv
, "enable hwcrypto key\n");
2511 if (is_default_wep_key
)
2512 ret
= iwl_remove_default_wep_key(priv
, ctx
, key
);
2514 ret
= iwl_remove_dynamic_key(priv
, ctx
, key
, sta
);
2516 IWL_DEBUG_MAC80211(priv
, "disable hwcrypto key\n");
2522 mutex_unlock(&priv
->shrd
->mutex
);
2523 IWL_DEBUG_MAC80211(priv
, "leave\n");
2528 static int iwlagn_mac_ampdu_action(struct ieee80211_hw
*hw
,
2529 struct ieee80211_vif
*vif
,
2530 enum ieee80211_ampdu_mlme_action action
,
2531 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
2534 struct iwl_priv
*priv
= hw
->priv
;
2536 struct iwl_station_priv
*sta_priv
= (void *) sta
->drv_priv
;
2538 IWL_DEBUG_HT(priv
, "A-MPDU action on addr %pM tid %d\n",
2541 if (!(priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
))
2544 mutex_lock(&priv
->shrd
->mutex
);
2547 case IEEE80211_AMPDU_RX_START
:
2548 IWL_DEBUG_HT(priv
, "start Rx\n");
2549 ret
= iwl_sta_rx_agg_start(priv
, sta
, tid
, *ssn
);
2551 case IEEE80211_AMPDU_RX_STOP
:
2552 IWL_DEBUG_HT(priv
, "stop Rx\n");
2553 ret
= iwl_sta_rx_agg_stop(priv
, sta
, tid
);
2554 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
2557 case IEEE80211_AMPDU_TX_START
:
2558 IWL_DEBUG_HT(priv
, "start Tx\n");
2559 ret
= iwlagn_tx_agg_start(priv
, vif
, sta
, tid
, ssn
);
2561 priv
->agg_tids_count
++;
2562 IWL_DEBUG_HT(priv
, "priv->agg_tids_count = %u\n",
2563 priv
->agg_tids_count
);
2566 case IEEE80211_AMPDU_TX_STOP
:
2567 IWL_DEBUG_HT(priv
, "stop Tx\n");
2568 ret
= iwlagn_tx_agg_stop(priv
, vif
, sta
, tid
);
2569 if ((ret
== 0) && (priv
->agg_tids_count
> 0)) {
2570 priv
->agg_tids_count
--;
2571 IWL_DEBUG_HT(priv
, "priv->agg_tids_count = %u\n",
2572 priv
->agg_tids_count
);
2574 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
2576 if (priv
->cfg
->ht_params
&&
2577 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
2579 * switch off RTS/CTS if it was previously enabled
2581 sta_priv
->lq_sta
.lq
.general_params
.flags
&=
2582 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
2583 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
2584 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
2587 case IEEE80211_AMPDU_TX_OPERATIONAL
:
2588 buf_size
= min_t(int, buf_size
, LINK_QUAL_AGG_FRAME_LIMIT_DEF
);
2590 iwl_trans_txq_agg_setup(trans(priv
), iwl_sta_id(sta
), tid
,
2594 * If the limit is 0, then it wasn't initialised yet,
2595 * use the default. We can do that since we take the
2596 * minimum below, and we don't want to go above our
2597 * default due to hardware restrictions.
2599 if (sta_priv
->max_agg_bufsize
== 0)
2600 sta_priv
->max_agg_bufsize
=
2601 LINK_QUAL_AGG_FRAME_LIMIT_DEF
;
2604 * Even though in theory the peer could have different
2605 * aggregation reorder buffer sizes for different sessions,
2606 * our ucode doesn't allow for that and has a global limit
2607 * for each station. Therefore, use the minimum of all the
2608 * aggregation sessions and our default value.
2610 sta_priv
->max_agg_bufsize
=
2611 min(sta_priv
->max_agg_bufsize
, buf_size
);
2613 if (priv
->cfg
->ht_params
&&
2614 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
2616 * switch to RTS/CTS if it is the prefer protection
2617 * method for HT traffic
2620 sta_priv
->lq_sta
.lq
.general_params
.flags
|=
2621 LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
2624 sta_priv
->lq_sta
.lq
.agg_params
.agg_frame_cnt_limit
=
2625 sta_priv
->max_agg_bufsize
;
2627 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
2628 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
2630 IWL_INFO(priv
, "Tx aggregation enabled on ra = %pM tid = %d\n",
2635 mutex_unlock(&priv
->shrd
->mutex
);
2640 static int iwlagn_mac_sta_add(struct ieee80211_hw
*hw
,
2641 struct ieee80211_vif
*vif
,
2642 struct ieee80211_sta
*sta
)
2644 struct iwl_priv
*priv
= hw
->priv
;
2645 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
2646 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2647 bool is_ap
= vif
->type
== NL80211_IFTYPE_STATION
;
2651 IWL_DEBUG_INFO(priv
, "received request to add station %pM\n",
2653 mutex_lock(&priv
->shrd
->mutex
);
2654 IWL_DEBUG_INFO(priv
, "proceeding to add station %pM\n",
2656 sta_priv
->common
.sta_id
= IWL_INVALID_STATION
;
2658 atomic_set(&sta_priv
->pending_frames
, 0);
2659 if (vif
->type
== NL80211_IFTYPE_AP
)
2660 sta_priv
->client
= true;
2662 ret
= iwl_add_station_common(priv
, vif_priv
->ctx
, sta
->addr
,
2663 is_ap
, sta
, &sta_id
);
2665 IWL_ERR(priv
, "Unable to add station %pM (%d)\n",
2667 /* Should we return success if return code is EEXIST ? */
2668 mutex_unlock(&priv
->shrd
->mutex
);
2672 sta_priv
->common
.sta_id
= sta_id
;
2674 /* Initialize rate scaling */
2675 IWL_DEBUG_INFO(priv
, "Initializing rate scaling for station %pM\n",
2677 iwl_rs_rate_init(priv
, sta
, sta_id
);
2678 mutex_unlock(&priv
->shrd
->mutex
);
2683 static void iwlagn_mac_channel_switch(struct ieee80211_hw
*hw
,
2684 struct ieee80211_channel_switch
*ch_switch
)
2686 struct iwl_priv
*priv
= hw
->priv
;
2687 const struct iwl_channel_info
*ch_info
;
2688 struct ieee80211_conf
*conf
= &hw
->conf
;
2689 struct ieee80211_channel
*channel
= ch_switch
->channel
;
2690 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
2693 * When we add support for multiple interfaces, we need to
2694 * revisit this. The channel switch command in the device
2695 * only affects the BSS context, but what does that really
2696 * mean? And what if we get a CSA on the second interface?
2697 * This needs a lot of work.
2699 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2702 IWL_DEBUG_MAC80211(priv
, "enter\n");
2704 mutex_lock(&priv
->shrd
->mutex
);
2706 if (iwl_is_rfkill(priv
->shrd
))
2709 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
) ||
2710 test_bit(STATUS_SCANNING
, &priv
->shrd
->status
) ||
2711 test_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
))
2714 if (!iwl_is_associated_ctx(ctx
))
2717 if (!priv
->cfg
->lib
->set_channel_switch
)
2720 ch
= channel
->hw_value
;
2721 if (le16_to_cpu(ctx
->active
.channel
) == ch
)
2724 ch_info
= iwl_get_channel_info(priv
, channel
->band
, ch
);
2725 if (!is_channel_valid(ch_info
)) {
2726 IWL_DEBUG_MAC80211(priv
, "invalid channel\n");
2730 spin_lock_irq(&priv
->shrd
->lock
);
2732 priv
->current_ht_config
.smps
= conf
->smps_mode
;
2734 /* Configure HT40 channels */
2735 ctx
->ht
.enabled
= conf_is_ht(conf
);
2736 if (ctx
->ht
.enabled
) {
2737 if (conf_is_ht40_minus(conf
)) {
2738 ctx
->ht
.extension_chan_offset
=
2739 IEEE80211_HT_PARAM_CHA_SEC_BELOW
;
2740 ctx
->ht
.is_40mhz
= true;
2741 } else if (conf_is_ht40_plus(conf
)) {
2742 ctx
->ht
.extension_chan_offset
=
2743 IEEE80211_HT_PARAM_CHA_SEC_ABOVE
;
2744 ctx
->ht
.is_40mhz
= true;
2746 ctx
->ht
.extension_chan_offset
=
2747 IEEE80211_HT_PARAM_CHA_SEC_NONE
;
2748 ctx
->ht
.is_40mhz
= false;
2751 ctx
->ht
.is_40mhz
= false;
2753 if ((le16_to_cpu(ctx
->staging
.channel
) != ch
))
2754 ctx
->staging
.flags
= 0;
2756 iwl_set_rxon_channel(priv
, channel
, ctx
);
2757 iwl_set_rxon_ht(priv
, ht_conf
);
2758 iwl_set_flags_for_band(priv
, ctx
, channel
->band
, ctx
->vif
);
2760 spin_unlock_irq(&priv
->shrd
->lock
);
2764 * at this point, staging_rxon has the
2765 * configuration for channel switch
2767 set_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
);
2768 priv
->switch_channel
= cpu_to_le16(ch
);
2769 if (priv
->cfg
->lib
->set_channel_switch(priv
, ch_switch
)) {
2770 clear_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
);
2771 priv
->switch_channel
= 0;
2772 ieee80211_chswitch_done(ctx
->vif
, false);
2776 mutex_unlock(&priv
->shrd
->mutex
);
2777 IWL_DEBUG_MAC80211(priv
, "leave\n");
2780 static void iwlagn_configure_filter(struct ieee80211_hw
*hw
,
2781 unsigned int changed_flags
,
2782 unsigned int *total_flags
,
2785 struct iwl_priv
*priv
= hw
->priv
;
2786 __le32 filter_or
= 0, filter_nand
= 0;
2787 struct iwl_rxon_context
*ctx
;
2789 #define CHK(test, flag) do { \
2790 if (*total_flags & (test)) \
2791 filter_or |= (flag); \
2793 filter_nand |= (flag); \
2796 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
2797 changed_flags
, *total_flags
);
2799 CHK(FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
, RXON_FILTER_PROMISC_MSK
);
2800 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
2801 CHK(FIF_CONTROL
, RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_PROMISC_MSK
);
2802 CHK(FIF_BCN_PRBRESP_PROMISC
, RXON_FILTER_BCON_AWARE_MSK
);
2806 mutex_lock(&priv
->shrd
->mutex
);
2808 for_each_context(priv
, ctx
) {
2809 ctx
->staging
.filter_flags
&= ~filter_nand
;
2810 ctx
->staging
.filter_flags
|= filter_or
;
2813 * Not committing directly because hardware can perform a scan,
2814 * but we'll eventually commit the filter flags change anyway.
2818 mutex_unlock(&priv
->shrd
->mutex
);
2821 * Receiving all multicast frames is always enabled by the
2822 * default flags setup in iwl_connection_init_rx_config()
2823 * since we currently do not support programming multicast
2824 * filters into the device.
2826 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
2827 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
2830 static void iwlagn_mac_flush(struct ieee80211_hw
*hw
, bool drop
)
2832 struct iwl_priv
*priv
= hw
->priv
;
2834 mutex_lock(&priv
->shrd
->mutex
);
2835 IWL_DEBUG_MAC80211(priv
, "enter\n");
2837 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
)) {
2838 IWL_DEBUG_TX(priv
, "Aborting flush due to device shutdown\n");
2841 if (iwl_is_rfkill(priv
->shrd
)) {
2842 IWL_DEBUG_TX(priv
, "Aborting flush due to RF Kill\n");
2847 * mac80211 will not push any more frames for transmit
2848 * until the flush is completed
2851 IWL_DEBUG_MAC80211(priv
, "send flush command\n");
2852 if (iwlagn_txfifo_flush(priv
, IWL_DROP_ALL
)) {
2853 IWL_ERR(priv
, "flush request fail\n");
2857 IWL_DEBUG_MAC80211(priv
, "wait transmit/flush all frames\n");
2858 iwlagn_wait_tx_queue_empty(priv
);
2860 mutex_unlock(&priv
->shrd
->mutex
);
2861 IWL_DEBUG_MAC80211(priv
, "leave\n");
2864 void iwlagn_disable_roc(struct iwl_priv
*priv
)
2866 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
2868 lockdep_assert_held(&priv
->shrd
->mutex
);
2870 if (!priv
->hw_roc_setup
)
2873 ctx
->staging
.dev_type
= RXON_DEV_TYPE_P2P
;
2874 ctx
->staging
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2876 priv
->hw_roc_channel
= NULL
;
2878 memset(ctx
->staging
.node_addr
, 0, ETH_ALEN
);
2880 iwlagn_commit_rxon(priv
, ctx
);
2882 ctx
->is_active
= false;
2883 priv
->hw_roc_setup
= false;
2886 static void iwlagn_disable_roc_work(struct work_struct
*work
)
2888 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
2889 hw_roc_disable_work
.work
);
2891 mutex_lock(&priv
->shrd
->mutex
);
2892 iwlagn_disable_roc(priv
);
2893 mutex_unlock(&priv
->shrd
->mutex
);
2896 static int iwl_mac_remain_on_channel(struct ieee80211_hw
*hw
,
2897 struct ieee80211_channel
*channel
,
2898 enum nl80211_channel_type channel_type
,
2901 struct iwl_priv
*priv
= hw
->priv
;
2902 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
2905 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
2908 if (!(ctx
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)))
2911 mutex_lock(&priv
->shrd
->mutex
);
2914 * TODO: Remove this hack! Firmware needs to be updated
2915 * to allow longer off-channel periods in scanning for
2916 * this use case, based on a flag (and we'll need an API
2917 * flag in the firmware when it has that).
2919 if (iwl_is_associated(priv
, IWL_RXON_CTX_BSS
) && duration
> 80)
2922 if (test_bit(STATUS_SCAN_HW
, &priv
->shrd
->status
)) {
2927 priv
->hw_roc_channel
= channel
;
2928 priv
->hw_roc_chantype
= channel_type
;
2929 priv
->hw_roc_duration
= duration
;
2930 cancel_delayed_work(&priv
->hw_roc_disable_work
);
2932 if (!ctx
->is_active
) {
2933 ctx
->is_active
= true;
2934 ctx
->staging
.dev_type
= RXON_DEV_TYPE_P2P
;
2935 memcpy(ctx
->staging
.node_addr
,
2936 priv
->contexts
[IWL_RXON_CTX_BSS
].staging
.node_addr
,
2938 memcpy(ctx
->staging
.bssid_addr
,
2939 priv
->contexts
[IWL_RXON_CTX_BSS
].staging
.node_addr
,
2941 err
= iwlagn_commit_rxon(priv
, ctx
);
2944 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
|
2945 RXON_FILTER_PROMISC_MSK
|
2946 RXON_FILTER_CTL2HOST_MSK
;
2948 err
= iwlagn_commit_rxon(priv
, ctx
);
2950 iwlagn_disable_roc(priv
);
2953 priv
->hw_roc_setup
= true;
2956 err
= iwl_scan_initiate(priv
, ctx
->vif
, IWL_SCAN_ROC
, channel
->band
);
2958 iwlagn_disable_roc(priv
);
2961 mutex_unlock(&priv
->shrd
->mutex
);
2966 static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw
*hw
)
2968 struct iwl_priv
*priv
= hw
->priv
;
2970 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
2973 mutex_lock(&priv
->shrd
->mutex
);
2974 iwl_scan_cancel_timeout(priv
, priv
->hw_roc_duration
);
2975 iwlagn_disable_roc(priv
);
2976 mutex_unlock(&priv
->shrd
->mutex
);
2981 /*****************************************************************************
2983 * driver setup and teardown
2985 *****************************************************************************/
2987 static void iwl_setup_deferred_work(struct iwl_priv
*priv
)
2989 priv
->shrd
->workqueue
= create_singlethread_workqueue(DRV_NAME
);
2991 init_waitqueue_head(&priv
->wait_command_queue
);
2993 INIT_WORK(&priv
->restart
, iwl_bg_restart
);
2994 INIT_WORK(&priv
->beacon_update
, iwl_bg_beacon_update
);
2995 INIT_WORK(&priv
->run_time_calib_work
, iwl_bg_run_time_calib_work
);
2996 INIT_WORK(&priv
->tx_flush
, iwl_bg_tx_flush
);
2997 INIT_WORK(&priv
->bt_full_concurrency
, iwl_bg_bt_full_concurrency
);
2998 INIT_WORK(&priv
->bt_runtime_config
, iwl_bg_bt_runtime_config
);
2999 INIT_DELAYED_WORK(&priv
->hw_roc_disable_work
,
3000 iwlagn_disable_roc_work
);
3002 iwl_setup_scan_deferred_work(priv
);
3004 if (priv
->cfg
->lib
->bt_setup_deferred_work
)
3005 priv
->cfg
->lib
->bt_setup_deferred_work(priv
);
3007 init_timer(&priv
->statistics_periodic
);
3008 priv
->statistics_periodic
.data
= (unsigned long)priv
;
3009 priv
->statistics_periodic
.function
= iwl_bg_statistics_periodic
;
3011 init_timer(&priv
->ucode_trace
);
3012 priv
->ucode_trace
.data
= (unsigned long)priv
;
3013 priv
->ucode_trace
.function
= iwl_bg_ucode_trace
;
3015 init_timer(&priv
->watchdog
);
3016 priv
->watchdog
.data
= (unsigned long)priv
;
3017 priv
->watchdog
.function
= iwl_bg_watchdog
;
3020 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
)
3022 if (priv
->cfg
->lib
->cancel_deferred_work
)
3023 priv
->cfg
->lib
->cancel_deferred_work(priv
);
3025 cancel_work_sync(&priv
->run_time_calib_work
);
3026 cancel_work_sync(&priv
->beacon_update
);
3028 iwl_cancel_scan_deferred_work(priv
);
3030 cancel_work_sync(&priv
->bt_full_concurrency
);
3031 cancel_work_sync(&priv
->bt_runtime_config
);
3032 cancel_delayed_work_sync(&priv
->hw_roc_disable_work
);
3034 del_timer_sync(&priv
->statistics_periodic
);
3035 del_timer_sync(&priv
->ucode_trace
);
3038 static void iwl_init_hw_rates(struct iwl_priv
*priv
,
3039 struct ieee80211_rate
*rates
)
3043 for (i
= 0; i
< IWL_RATE_COUNT_LEGACY
; i
++) {
3044 rates
[i
].bitrate
= iwl_rates
[i
].ieee
* 5;
3045 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
3046 rates
[i
].hw_value_short
= i
;
3048 if ((i
>= IWL_FIRST_CCK_RATE
) && (i
<= IWL_LAST_CCK_RATE
)) {
3050 * If CCK != 1M then set short preamble rate flag.
3053 (iwl_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
3054 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
3059 static int iwl_init_drv(struct iwl_priv
*priv
)
3063 spin_lock_init(&priv
->shrd
->sta_lock
);
3065 mutex_init(&priv
->shrd
->mutex
);
3067 priv
->ieee_channels
= NULL
;
3068 priv
->ieee_rates
= NULL
;
3069 priv
->band
= IEEE80211_BAND_2GHZ
;
3071 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
3072 priv
->current_ht_config
.smps
= IEEE80211_SMPS_STATIC
;
3073 priv
->missed_beacon_threshold
= IWL_MISSED_BEACON_THRESHOLD_DEF
;
3074 priv
->agg_tids_count
= 0;
3076 /* initialize force reset */
3077 priv
->force_reset
[IWL_RF_RESET
].reset_duration
=
3078 IWL_DELAY_NEXT_FORCE_RF_RESET
;
3079 priv
->force_reset
[IWL_FW_RESET
].reset_duration
=
3080 IWL_DELAY_NEXT_FORCE_FW_RELOAD
;
3082 priv
->rx_statistics_jiffies
= jiffies
;
3084 /* Choose which receivers/antennas to use */
3085 iwlagn_set_rxon_chain(priv
, &priv
->contexts
[IWL_RXON_CTX_BSS
]);
3087 iwl_init_scan_params(priv
);
3090 if (priv
->cfg
->bt_params
&&
3091 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
3092 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
3093 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
3094 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
3095 priv
->bt_on_thresh
= BT_ON_THRESHOLD_DEF
;
3096 priv
->bt_duration
= BT_DURATION_LIMIT_DEF
;
3097 priv
->dynamic_frag_thresh
= BT_FRAG_THRESHOLD_DEF
;
3100 ret
= iwl_init_channel_map(priv
);
3102 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
3106 ret
= iwl_init_geos(priv
);
3108 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
3109 goto err_free_channel_map
;
3111 iwl_init_hw_rates(priv
, priv
->ieee_rates
);
3115 err_free_channel_map
:
3116 iwl_free_channel_map(priv
);
3121 static void iwl_uninit_drv(struct iwl_priv
*priv
)
3123 iwl_calib_free_results(priv
);
3124 iwl_free_geos(priv
);
3125 iwl_free_channel_map(priv
);
3126 kfree(priv
->scan_cmd
);
3127 kfree(priv
->beacon_cmd
);
3128 #ifdef CONFIG_IWLWIFI_DEBUGFS
3129 kfree(priv
->wowlan_sram
);
3133 static void iwl_mac_rssi_callback(struct ieee80211_hw
*hw
,
3134 enum ieee80211_rssi_event rssi_event
)
3136 struct iwl_priv
*priv
= hw
->priv
;
3138 mutex_lock(&priv
->shrd
->mutex
);
3140 if (priv
->cfg
->bt_params
&&
3141 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
3142 if (rssi_event
== RSSI_EVENT_LOW
)
3143 priv
->bt_enable_pspoll
= true;
3144 else if (rssi_event
== RSSI_EVENT_HIGH
)
3145 priv
->bt_enable_pspoll
= false;
3147 iwlagn_send_advance_bt_config(priv
);
3149 IWL_DEBUG_MAC80211(priv
, "Advanced BT coex disabled,"
3150 "ignoring RSSI callback\n");
3153 mutex_unlock(&priv
->shrd
->mutex
);
3156 struct ieee80211_ops iwlagn_hw_ops
= {
3157 .tx
= iwlagn_mac_tx
,
3158 .start
= iwlagn_mac_start
,
3159 .stop
= iwlagn_mac_stop
,
3161 .suspend
= iwlagn_mac_suspend
,
3162 .resume
= iwlagn_mac_resume
,
3164 .add_interface
= iwl_mac_add_interface
,
3165 .remove_interface
= iwl_mac_remove_interface
,
3166 .change_interface
= iwl_mac_change_interface
,
3167 .config
= iwlagn_mac_config
,
3168 .configure_filter
= iwlagn_configure_filter
,
3169 .set_key
= iwlagn_mac_set_key
,
3170 .update_tkip_key
= iwlagn_mac_update_tkip_key
,
3171 .set_rekey_data
= iwlagn_mac_set_rekey_data
,
3172 .conf_tx
= iwl_mac_conf_tx
,
3173 .bss_info_changed
= iwlagn_bss_info_changed
,
3174 .ampdu_action
= iwlagn_mac_ampdu_action
,
3175 .hw_scan
= iwl_mac_hw_scan
,
3176 .sta_notify
= iwlagn_mac_sta_notify
,
3177 .sta_add
= iwlagn_mac_sta_add
,
3178 .sta_remove
= iwl_mac_sta_remove
,
3179 .channel_switch
= iwlagn_mac_channel_switch
,
3180 .flush
= iwlagn_mac_flush
,
3181 .tx_last_beacon
= iwl_mac_tx_last_beacon
,
3182 .remain_on_channel
= iwl_mac_remain_on_channel
,
3183 .cancel_remain_on_channel
= iwl_mac_cancel_remain_on_channel
,
3184 .rssi_callback
= iwl_mac_rssi_callback
,
3185 CFG80211_TESTMODE_CMD(iwl_testmode_cmd
)
3186 CFG80211_TESTMODE_DUMP(iwl_testmode_dump
)
3189 static u32
iwl_hw_detect(struct iwl_priv
*priv
)
3191 return iwl_read32(bus(priv
), CSR_HW_REV
);
3194 /* Size of one Rx buffer in host DRAM */
3195 #define IWL_RX_BUF_SIZE_4K (4 * 1024)
3196 #define IWL_RX_BUF_SIZE_8K (8 * 1024)
3198 static int iwl_set_hw_params(struct iwl_priv
*priv
)
3200 if (iwlagn_mod_params
.amsdu_size_8K
)
3201 hw_params(priv
).rx_page_order
=
3202 get_order(IWL_RX_BUF_SIZE_8K
);
3204 hw_params(priv
).rx_page_order
=
3205 get_order(IWL_RX_BUF_SIZE_4K
);
3207 if (iwlagn_mod_params
.disable_11n
)
3208 priv
->cfg
->sku
&= ~EEPROM_SKU_CAP_11N_ENABLE
;
3210 hw_params(priv
).num_ampdu_queues
=
3211 priv
->cfg
->base_params
->num_of_ampdu_queues
;
3212 hw_params(priv
).shadow_reg_enable
=
3213 priv
->cfg
->base_params
->shadow_reg_enable
;
3214 hw_params(priv
).sku
=
3217 /* Device-specific setup */
3218 return priv
->cfg
->lib
->set_hw_params(priv
);
3221 /* This function both allocates and initializes hw and priv. */
3222 static struct ieee80211_hw
*iwl_alloc_all(struct iwl_cfg
*cfg
)
3224 struct iwl_priv
*priv
;
3225 /* mac80211 allocates memory for this device instance, including
3226 * space for this driver's private structure */
3227 struct ieee80211_hw
*hw
;
3229 hw
= ieee80211_alloc_hw(sizeof(struct iwl_priv
), &iwlagn_hw_ops
);
3231 pr_err("%s: Can not allocate network device\n",
3243 int iwl_probe(struct iwl_bus
*bus
, const struct iwl_trans_ops
*trans_ops
,
3244 struct iwl_cfg
*cfg
)
3247 struct iwl_priv
*priv
;
3248 struct ieee80211_hw
*hw
;
3252 /************************
3253 * 1. Allocating HW data
3254 ************************/
3255 hw
= iwl_alloc_all(cfg
);
3263 priv
->shrd
= &priv
->_shrd
;
3264 priv
->shrd
->bus
= bus
;
3265 priv
->shrd
->priv
= priv
;
3266 bus_set_drv_data(priv
->bus
, priv
->shrd
);
3268 priv
->shrd
->trans
= trans_ops
->alloc(priv
->shrd
);
3269 if (priv
->shrd
->trans
== NULL
) {
3271 goto out_free_traffic_mem
;
3274 /* At this point both hw and priv are allocated. */
3276 SET_IEEE80211_DEV(hw
, priv
->bus
->dev
);
3278 IWL_DEBUG_INFO(priv
, "*** LOAD DRIVER ***\n");
3281 /* is antenna coupling more than 35dB ? */
3282 priv
->bt_ant_couple_ok
=
3283 (iwlagn_mod_params
.ant_coupling
>
3284 IWL_BT_ANTENNA_COUPLING_THRESHOLD
) ?
3287 /* enable/disable bt channel inhibition */
3288 priv
->bt_ch_announce
= iwlagn_mod_params
.bt_ch_announce
;
3289 IWL_DEBUG_INFO(priv
, "BT channel inhibition is %s\n",
3290 (priv
->bt_ch_announce
) ? "On" : "Off");
3292 if (iwl_alloc_traffic_mem(priv
))
3293 IWL_ERR(priv
, "Not enough memory to generate traffic log\n");
3295 /* these spin locks will be used in apm_ops.init and EEPROM access
3296 * we should init now
3298 spin_lock_init(&bus(priv
)->reg_lock
);
3299 spin_lock_init(&priv
->shrd
->lock
);
3302 * stop and reset the on-board processor just in case it is in a
3303 * strange state ... like being left stranded by a primary kernel
3304 * and this is now the kdump kernel trying to start up
3306 iwl_write32(bus(priv
), CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
3308 /***********************
3309 * 3. Read REV register
3310 ***********************/
3311 hw_rev
= iwl_hw_detect(priv
);
3312 IWL_INFO(priv
, "Detected %s, REV=0x%X\n",
3313 priv
->cfg
->name
, hw_rev
);
3315 err
= iwl_trans_request_irq(trans(priv
));
3317 goto out_free_trans
;
3319 if (iwl_trans_prepare_card_hw(trans(priv
))) {
3321 IWL_WARN(priv
, "Failed, HW not ready\n");
3322 goto out_free_trans
;
3328 /* Read the EEPROM */
3329 err
= iwl_eeprom_init(priv
, hw_rev
);
3331 IWL_ERR(priv
, "Unable to init EEPROM\n");
3332 goto out_free_trans
;
3334 err
= iwl_eeprom_check_version(priv
);
3336 goto out_free_eeprom
;
3338 err
= iwl_eeprom_check_sku(priv
);
3340 goto out_free_eeprom
;
3342 /* extract MAC Address */
3343 iwl_eeprom_get_mac(priv
, priv
->addresses
[0].addr
);
3344 IWL_DEBUG_INFO(priv
, "MAC address: %pM\n", priv
->addresses
[0].addr
);
3345 priv
->hw
->wiphy
->addresses
= priv
->addresses
;
3346 priv
->hw
->wiphy
->n_addresses
= 1;
3347 num_mac
= iwl_eeprom_query16(priv
, EEPROM_NUM_MAC_ADDRESS
);
3349 memcpy(priv
->addresses
[1].addr
, priv
->addresses
[0].addr
,
3351 priv
->addresses
[1].addr
[5]++;
3352 priv
->hw
->wiphy
->n_addresses
++;
3355 /************************
3356 * 5. Setup HW constants
3357 ************************/
3358 if (iwl_set_hw_params(priv
)) {
3360 IWL_ERR(priv
, "failed to set hw parameters\n");
3361 goto out_free_eeprom
;
3364 /*******************
3366 *******************/
3368 err
= iwl_init_drv(priv
);
3370 goto out_free_eeprom
;
3371 /* At this point both hw and priv are initialized. */
3373 /********************
3375 ********************/
3376 iwl_setup_deferred_work(priv
);
3377 iwl_setup_rx_handlers(priv
);
3378 iwl_testmode_init(priv
);
3380 /*********************************************
3381 * 8. Enable interrupts
3382 *********************************************/
3384 iwl_enable_rfkill_int(priv
);
3386 /* If platform's RF_KILL switch is NOT set to KILL */
3387 if (iwl_read32(bus(priv
),
3388 CSR_GP_CNTRL
) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
3389 clear_bit(STATUS_RF_KILL_HW
, &priv
->shrd
->status
);
3391 set_bit(STATUS_RF_KILL_HW
, &priv
->shrd
->status
);
3393 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
3394 test_bit(STATUS_RF_KILL_HW
, &priv
->shrd
->status
));
3396 iwl_power_initialize(priv
);
3397 iwl_tt_initialize(priv
);
3399 init_completion(&priv
->firmware_loading_complete
);
3401 err
= iwl_request_firmware(priv
, true);
3403 goto out_destroy_workqueue
;
3407 out_destroy_workqueue
:
3408 destroy_workqueue(priv
->shrd
->workqueue
);
3409 priv
->shrd
->workqueue
= NULL
;
3410 iwl_uninit_drv(priv
);
3412 iwl_eeprom_free(priv
);
3414 iwl_trans_free(trans(priv
));
3415 out_free_traffic_mem
:
3416 iwl_free_traffic_mem(priv
);
3417 ieee80211_free_hw(priv
->hw
);
3422 void __devexit
iwl_remove(struct iwl_priv
* priv
)
3424 wait_for_completion(&priv
->firmware_loading_complete
);
3426 IWL_DEBUG_INFO(priv
, "*** UNLOAD DRIVER ***\n");
3428 iwl_dbgfs_unregister(priv
);
3429 sysfs_remove_group(&priv
->bus
->dev
->kobj
,
3430 &iwl_attribute_group
);
3432 /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
3433 * to be called and iwl_down since we are removing the device
3434 * we need to set STATUS_EXIT_PENDING bit.
3436 set_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
3438 iwl_testmode_cleanup(priv
);
3439 iwl_leds_exit(priv
);
3441 if (priv
->mac80211_registered
) {
3442 ieee80211_unregister_hw(priv
->hw
);
3443 priv
->mac80211_registered
= 0;
3446 /* Reset to low power before unloading driver. */
3451 /* make sure we flush any pending irq or
3452 * tasklet for the driver */
3453 iwl_trans_disable_sync_irq(trans(priv
));
3455 iwl_dealloc_ucode(priv
);
3457 iwl_trans_rx_free(trans(priv
));
3458 iwl_trans_tx_free(trans(priv
));
3460 iwl_eeprom_free(priv
);
3462 /*netif_stop_queue(dev); */
3463 flush_workqueue(priv
->shrd
->workqueue
);
3465 /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
3466 * priv->shrd->workqueue... so we can't take down the workqueue
3468 destroy_workqueue(priv
->shrd
->workqueue
);
3469 priv
->shrd
->workqueue
= NULL
;
3470 iwl_free_traffic_mem(priv
);
3472 iwl_trans_free(trans(priv
));
3474 bus_set_drv_data(priv
->bus
, NULL
);
3476 iwl_uninit_drv(priv
);
3478 dev_kfree_skb(priv
->beacon_skb
);
3480 ieee80211_free_hw(priv
->hw
);
3484 /*****************************************************************************
3486 * driver and module entry point
3488 *****************************************************************************/
3489 static int __init
iwl_init(void)
3493 pr_info(DRV_DESCRIPTION
", " DRV_VERSION
"\n");
3494 pr_info(DRV_COPYRIGHT
"\n");
3496 ret
= iwlagn_rate_control_register();
3498 pr_err("Unable to register rate control algorithm: %d\n", ret
);
3502 ret
= iwl_pci_register_driver();
3505 goto error_register
;
3509 iwlagn_rate_control_unregister();
3513 static void __exit
iwl_exit(void)
3515 iwl_pci_unregister_driver();
3516 iwlagn_rate_control_unregister();
3519 module_exit(iwl_exit
);
3520 module_init(iwl_init
);
3522 #ifdef CONFIG_IWLWIFI_DEBUG
3523 module_param_named(debug
, iwlagn_mod_params
.debug_level
, uint
,
3525 MODULE_PARM_DESC(debug
, "debug output mask");
3528 module_param_named(swcrypto
, iwlagn_mod_params
.sw_crypto
, int, S_IRUGO
);
3529 MODULE_PARM_DESC(swcrypto
, "using crypto in software (default 0 [hardware])");
3530 module_param_named(queues_num
, iwlagn_mod_params
.num_of_queues
, int, S_IRUGO
);
3531 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
3532 module_param_named(11n_disable
, iwlagn_mod_params
.disable_11n
, int, S_IRUGO
);
3533 MODULE_PARM_DESC(11n_disable
, "disable 11n functionality");
3534 module_param_named(amsdu_size_8K
, iwlagn_mod_params
.amsdu_size_8K
,
3536 MODULE_PARM_DESC(amsdu_size_8K
, "enable 8K amsdu size");
3537 module_param_named(fw_restart
, iwlagn_mod_params
.restart_fw
, int, S_IRUGO
);
3538 MODULE_PARM_DESC(fw_restart
, "restart firmware in case of error");
3540 module_param_named(ucode_alternative
,
3541 iwlagn_mod_params
.wanted_ucode_alternative
,
3543 MODULE_PARM_DESC(ucode_alternative
,
3544 "specify ucode alternative to use from ucode file");
3546 module_param_named(antenna_coupling
, iwlagn_mod_params
.ant_coupling
,
3548 MODULE_PARM_DESC(antenna_coupling
,
3549 "specify antenna coupling in dB (defualt: 0 dB)");
3551 module_param_named(bt_ch_inhibition
, iwlagn_mod_params
.bt_ch_announce
,
3553 MODULE_PARM_DESC(bt_ch_inhibition
,
3554 "Enable BT channel inhibition (default: enable)");
3556 module_param_named(plcp_check
, iwlagn_mod_params
.plcp_check
, bool, S_IRUGO
);
3557 MODULE_PARM_DESC(plcp_check
, "Check plcp health (default: 1 [enabled])");
3559 module_param_named(ack_check
, iwlagn_mod_params
.ack_check
, bool, S_IRUGO
);
3560 MODULE_PARM_DESC(ack_check
, "Check ack health (default: 0 [disabled])");
3562 module_param_named(wd_disable
, iwlagn_mod_params
.wd_disable
, bool, S_IRUGO
);
3563 MODULE_PARM_DESC(wd_disable
,
3564 "Disable stuck queue watchdog timer (default: 0 [enabled])");
3567 * set bt_coex_active to true, uCode will do kill/defer
3568 * every time the priority line is asserted (BT is sending signals on the
3569 * priority line in the PCIx).
3570 * set bt_coex_active to false, uCode will ignore the BT activity and
3571 * perform the normal operation
3573 * User might experience transmit issue on some platform due to WiFi/BT
3574 * co-exist problem. The possible behaviors are:
3575 * Able to scan and finding all the available AP
3576 * Not able to associate with any AP
3577 * On those platforms, WiFi communication can be restored by set
3578 * "bt_coex_active" module parameter to "false"
3580 * default: bt_coex_active = true (BT_COEX_ENABLE)
3582 module_param_named(bt_coex_active
, iwlagn_mod_params
.bt_coex_active
,
3584 MODULE_PARM_DESC(bt_coex_active
, "enable wifi/bt co-exist (default: enable)");
3586 module_param_named(led_mode
, iwlagn_mod_params
.led_mode
, int, S_IRUGO
);
3587 MODULE_PARM_DESC(led_mode
, "0=system default, "
3588 "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)");
3590 module_param_named(power_save
, iwlagn_mod_params
.power_save
,
3592 MODULE_PARM_DESC(power_save
,
3593 "enable WiFi power management (default: disable)");
3595 module_param_named(power_level
, iwlagn_mod_params
.power_level
,
3597 MODULE_PARM_DESC(power_level
,
3598 "default power save level (range from 1 - 5, default: 1)");
3600 module_param_named(auto_agg
, iwlagn_mod_params
.auto_agg
,
3602 MODULE_PARM_DESC(auto_agg
,
3603 "enable agg w/o check traffic load (default: enable)");
3606 * For now, keep using power level 1 instead of automatically
3609 module_param_named(no_sleep_autoadjust
, iwlagn_mod_params
.no_sleep_autoadjust
,
3611 MODULE_PARM_DESC(no_sleep_autoadjust
,
3612 "don't automatically adjust sleep level "
3613 "according to maximum network latency (default: true)");