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 *****************************************************************************/
30 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
32 #include <linux/kernel.h>
33 #include <linux/module.h>
34 #include <linux/init.h>
35 #include <linux/slab.h>
36 #include <linux/dma-mapping.h>
37 #include <linux/delay.h>
38 #include <linux/sched.h>
39 #include <linux/skbuff.h>
40 #include <linux/netdevice.h>
41 #include <linux/wireless.h>
42 #include <linux/firmware.h>
43 #include <linux/etherdevice.h>
44 #include <linux/if_arp.h>
46 #include <net/mac80211.h>
48 #include <asm/div64.h>
50 #include "iwl-eeprom.h"
54 #include "iwl-helpers.h"
56 #include "iwl-agn-calib.h"
59 #include "iwl-trans.h"
61 /******************************************************************************
65 ******************************************************************************/
68 * module name, copyright, version, etc.
70 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
72 #ifdef CONFIG_IWLWIFI_DEBUG
78 #define DRV_VERSION IWLWIFI_VERSION VD
81 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
82 MODULE_VERSION(DRV_VERSION
);
83 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
84 MODULE_LICENSE("GPL");
86 static int iwlagn_ant_coupling
;
87 static bool iwlagn_bt_ch_announce
= 1;
89 void iwl_update_chain_flags(struct iwl_priv
*priv
)
91 struct iwl_rxon_context
*ctx
;
93 for_each_context(priv
, ctx
) {
94 iwlagn_set_rxon_chain(priv
, ctx
);
95 if (ctx
->active
.rx_chain
!= ctx
->staging
.rx_chain
)
96 iwlagn_commit_rxon(priv
, ctx
);
100 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
101 static void iwl_set_beacon_tim(struct iwl_priv
*priv
,
102 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
,
103 u8
*beacon
, u32 frame_size
)
106 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)beacon
;
109 * The index is relative to frame start but we start looking at the
110 * variable-length part of the beacon.
112 tim_idx
= mgmt
->u
.beacon
.variable
- beacon
;
114 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
115 while ((tim_idx
< (frame_size
- 2)) &&
116 (beacon
[tim_idx
] != WLAN_EID_TIM
))
117 tim_idx
+= beacon
[tim_idx
+1] + 2;
119 /* If TIM field was found, set variables */
120 if ((tim_idx
< (frame_size
- 1)) && (beacon
[tim_idx
] == WLAN_EID_TIM
)) {
121 tx_beacon_cmd
->tim_idx
= cpu_to_le16(tim_idx
);
122 tx_beacon_cmd
->tim_size
= beacon
[tim_idx
+1];
124 IWL_WARN(priv
, "Unable to find TIM Element in beacon\n");
127 int iwlagn_send_beacon_cmd(struct iwl_priv
*priv
)
129 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
;
130 struct iwl_host_cmd cmd
= {
131 .id
= REPLY_TX_BEACON
,
134 struct ieee80211_tx_info
*info
;
140 * We have to set up the TX command, the TX Beacon command, and the
144 lockdep_assert_held(&priv
->mutex
);
146 if (!priv
->beacon_ctx
) {
147 IWL_ERR(priv
, "trying to build beacon w/o beacon context!\n");
151 if (WARN_ON(!priv
->beacon_skb
))
154 /* Allocate beacon command */
155 if (!priv
->beacon_cmd
)
156 priv
->beacon_cmd
= kzalloc(sizeof(*tx_beacon_cmd
), GFP_KERNEL
);
157 tx_beacon_cmd
= priv
->beacon_cmd
;
161 frame_size
= priv
->beacon_skb
->len
;
163 /* Set up TX command fields */
164 tx_beacon_cmd
->tx
.len
= cpu_to_le16((u16
)frame_size
);
165 tx_beacon_cmd
->tx
.sta_id
= priv
->beacon_ctx
->bcast_sta_id
;
166 tx_beacon_cmd
->tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
167 tx_beacon_cmd
->tx
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
|
168 TX_CMD_FLG_TSF_MSK
| TX_CMD_FLG_STA_RATE_MSK
;
170 /* Set up TX beacon command fields */
171 iwl_set_beacon_tim(priv
, tx_beacon_cmd
, priv
->beacon_skb
->data
,
174 /* Set up packet rate and flags */
175 info
= IEEE80211_SKB_CB(priv
->beacon_skb
);
178 * Let's set up the rate at least somewhat correctly;
179 * it will currently not actually be used by the uCode,
180 * it uses the broadcast station's rate instead.
182 if (info
->control
.rates
[0].idx
< 0 ||
183 info
->control
.rates
[0].flags
& IEEE80211_TX_RC_MCS
)
186 rate
= info
->control
.rates
[0].idx
;
188 priv
->mgmt_tx_ant
= iwl_toggle_tx_ant(priv
, priv
->mgmt_tx_ant
,
189 priv
->hw_params
.valid_tx_ant
);
190 rate_flags
= iwl_ant_idx_to_flags(priv
->mgmt_tx_ant
);
192 /* In mac80211, rates for 5 GHz start at 0 */
193 if (info
->band
== IEEE80211_BAND_5GHZ
)
194 rate
+= IWL_FIRST_OFDM_RATE
;
195 else if (rate
>= IWL_FIRST_CCK_RATE
&& rate
<= IWL_LAST_CCK_RATE
)
196 rate_flags
|= RATE_MCS_CCK_MSK
;
198 tx_beacon_cmd
->tx
.rate_n_flags
=
199 iwl_hw_set_rate_n_flags(rate
, rate_flags
);
202 cmd
.len
[0] = sizeof(*tx_beacon_cmd
);
203 cmd
.data
[0] = tx_beacon_cmd
;
204 cmd
.dataflags
[0] = IWL_HCMD_DFL_NOCOPY
;
205 cmd
.len
[1] = frame_size
;
206 cmd
.data
[1] = priv
->beacon_skb
->data
;
207 cmd
.dataflags
[1] = IWL_HCMD_DFL_NOCOPY
;
209 return trans_send_cmd(priv
, &cmd
);
212 static void iwl_bg_beacon_update(struct work_struct
*work
)
214 struct iwl_priv
*priv
=
215 container_of(work
, struct iwl_priv
, beacon_update
);
216 struct sk_buff
*beacon
;
218 mutex_lock(&priv
->mutex
);
219 if (!priv
->beacon_ctx
) {
220 IWL_ERR(priv
, "updating beacon w/o beacon context!\n");
224 if (priv
->beacon_ctx
->vif
->type
!= NL80211_IFTYPE_AP
) {
226 * The ucode will send beacon notifications even in
227 * IBSS mode, but we don't want to process them. But
228 * we need to defer the type check to here due to
229 * requiring locking around the beacon_ctx access.
234 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
235 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->beacon_ctx
->vif
);
237 IWL_ERR(priv
, "update beacon failed -- keeping old\n");
241 /* new beacon skb is allocated every time; dispose previous.*/
242 dev_kfree_skb(priv
->beacon_skb
);
244 priv
->beacon_skb
= beacon
;
246 iwlagn_send_beacon_cmd(priv
);
248 mutex_unlock(&priv
->mutex
);
251 static void iwl_bg_bt_runtime_config(struct work_struct
*work
)
253 struct iwl_priv
*priv
=
254 container_of(work
, struct iwl_priv
, bt_runtime_config
);
256 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
259 /* dont send host command if rf-kill is on */
260 if (!iwl_is_ready_rf(priv
))
262 iwlagn_send_advance_bt_config(priv
);
265 static void iwl_bg_bt_full_concurrency(struct work_struct
*work
)
267 struct iwl_priv
*priv
=
268 container_of(work
, struct iwl_priv
, bt_full_concurrency
);
269 struct iwl_rxon_context
*ctx
;
271 mutex_lock(&priv
->mutex
);
273 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
276 /* dont send host command if rf-kill is on */
277 if (!iwl_is_ready_rf(priv
))
280 IWL_DEBUG_INFO(priv
, "BT coex in %s mode\n",
281 priv
->bt_full_concurrent
?
282 "full concurrency" : "3-wire");
285 * LQ & RXON updated cmds must be sent before BT Config cmd
286 * to avoid 3-wire collisions
288 for_each_context(priv
, ctx
) {
289 iwlagn_set_rxon_chain(priv
, ctx
);
290 iwlagn_commit_rxon(priv
, ctx
);
293 iwlagn_send_advance_bt_config(priv
);
295 mutex_unlock(&priv
->mutex
);
299 * iwl_bg_statistics_periodic - Timer callback to queue statistics
301 * This callback is provided in order to send a statistics request.
303 * This timer function is continually reset to execute within
304 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
305 * was received. We need to ensure we receive the statistics in order
306 * to update the temperature used for calibrating the TXPOWER.
308 static void iwl_bg_statistics_periodic(unsigned long data
)
310 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
312 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
315 /* dont send host command if rf-kill is on */
316 if (!iwl_is_ready_rf(priv
))
319 iwl_send_statistics_request(priv
, CMD_ASYNC
, false);
323 static void iwl_print_cont_event_trace(struct iwl_priv
*priv
, u32 base
,
324 u32 start_idx
, u32 num_events
,
328 u32 ptr
; /* SRAM byte address of log data */
329 u32 ev
, time
, data
; /* event log data */
330 unsigned long reg_flags
;
333 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 2 * sizeof(u32
));
335 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 3 * sizeof(u32
));
337 /* Make sure device is powered up for SRAM reads */
338 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
339 if (iwl_grab_nic_access(priv
)) {
340 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
344 /* Set starting address; reads will auto-increment */
345 iwl_write32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
349 * "time" is actually "data" for mode 0 (no timestamp).
350 * place event id # at far right for easier visual parsing.
352 for (i
= 0; i
< num_events
; i
++) {
353 ev
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
354 time
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
356 trace_iwlwifi_dev_ucode_cont_event(priv
,
359 data
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
360 trace_iwlwifi_dev_ucode_cont_event(priv
,
364 /* Allow device to power down */
365 iwl_release_nic_access(priv
);
366 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
369 static void iwl_continuous_event_trace(struct iwl_priv
*priv
)
371 u32 capacity
; /* event log capacity in # entries */
372 u32 base
; /* SRAM byte address of event log header */
373 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
374 u32 num_wraps
; /* # times uCode wrapped to top of log */
375 u32 next_entry
; /* index of next entry to be written by uCode */
377 base
= priv
->device_pointers
.error_event_table
;
378 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
379 capacity
= iwl_read_targ_mem(priv
, base
);
380 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
381 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
382 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
386 if (num_wraps
== priv
->event_log
.num_wraps
) {
387 iwl_print_cont_event_trace(priv
,
388 base
, priv
->event_log
.next_entry
,
389 next_entry
- priv
->event_log
.next_entry
,
391 priv
->event_log
.non_wraps_count
++;
393 if ((num_wraps
- priv
->event_log
.num_wraps
) > 1)
394 priv
->event_log
.wraps_more_count
++;
396 priv
->event_log
.wraps_once_count
++;
397 trace_iwlwifi_dev_ucode_wrap_event(priv
,
398 num_wraps
- priv
->event_log
.num_wraps
,
399 next_entry
, priv
->event_log
.next_entry
);
400 if (next_entry
< priv
->event_log
.next_entry
) {
401 iwl_print_cont_event_trace(priv
, base
,
402 priv
->event_log
.next_entry
,
403 capacity
- priv
->event_log
.next_entry
,
406 iwl_print_cont_event_trace(priv
, base
, 0,
409 iwl_print_cont_event_trace(priv
, base
,
410 next_entry
, capacity
- next_entry
,
413 iwl_print_cont_event_trace(priv
, base
, 0,
417 priv
->event_log
.num_wraps
= num_wraps
;
418 priv
->event_log
.next_entry
= next_entry
;
422 * iwl_bg_ucode_trace - Timer callback to log ucode event
424 * The timer is continually set to execute every
425 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
426 * this function is to perform continuous uCode event logging operation
429 static void iwl_bg_ucode_trace(unsigned long data
)
431 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
433 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
436 if (priv
->event_log
.ucode_trace
) {
437 iwl_continuous_event_trace(priv
);
438 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
439 mod_timer(&priv
->ucode_trace
,
440 jiffies
+ msecs_to_jiffies(UCODE_TRACE_PERIOD
));
444 static void iwl_bg_tx_flush(struct work_struct
*work
)
446 struct iwl_priv
*priv
=
447 container_of(work
, struct iwl_priv
, tx_flush
);
449 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
452 /* do nothing if rf-kill is on */
453 if (!iwl_is_ready_rf(priv
))
456 IWL_DEBUG_INFO(priv
, "device request: flush all tx frames\n");
457 iwlagn_dev_txfifo_flush(priv
, IWL_DROP_ALL
);
460 /*****************************************************************************
464 *****************************************************************************/
466 #ifdef CONFIG_IWLWIFI_DEBUG
469 * The following adds a new attribute to the sysfs representation
470 * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
471 * used for controlling the debug level.
473 * See the level definitions in iwl for details.
475 * The debug_level being managed using sysfs below is a per device debug
476 * level that is used instead of the global debug level if it (the per
477 * device debug level) is set.
479 static ssize_t
show_debug_level(struct device
*d
,
480 struct device_attribute
*attr
, char *buf
)
482 struct iwl_priv
*priv
= dev_get_drvdata(d
);
483 return sprintf(buf
, "0x%08X\n", iwl_get_debug_level(priv
));
485 static ssize_t
store_debug_level(struct device
*d
,
486 struct device_attribute
*attr
,
487 const char *buf
, size_t count
)
489 struct iwl_priv
*priv
= dev_get_drvdata(d
);
493 ret
= strict_strtoul(buf
, 0, &val
);
495 IWL_ERR(priv
, "%s is not in hex or decimal form.\n", buf
);
497 priv
->debug_level
= val
;
498 if (iwl_alloc_traffic_mem(priv
))
500 "Not enough memory to generate traffic log\n");
502 return strnlen(buf
, count
);
505 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
506 show_debug_level
, store_debug_level
);
509 #endif /* CONFIG_IWLWIFI_DEBUG */
512 static ssize_t
show_temperature(struct device
*d
,
513 struct device_attribute
*attr
, char *buf
)
515 struct iwl_priv
*priv
= dev_get_drvdata(d
);
517 if (!iwl_is_alive(priv
))
520 return sprintf(buf
, "%d\n", priv
->temperature
);
523 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
525 static ssize_t
show_tx_power(struct device
*d
,
526 struct device_attribute
*attr
, char *buf
)
528 struct iwl_priv
*priv
= dev_get_drvdata(d
);
530 if (!iwl_is_ready_rf(priv
))
531 return sprintf(buf
, "off\n");
533 return sprintf(buf
, "%d\n", priv
->tx_power_user_lmt
);
536 static ssize_t
store_tx_power(struct device
*d
,
537 struct device_attribute
*attr
,
538 const char *buf
, size_t count
)
540 struct iwl_priv
*priv
= dev_get_drvdata(d
);
544 ret
= strict_strtoul(buf
, 10, &val
);
546 IWL_INFO(priv
, "%s is not in decimal form.\n", buf
);
548 ret
= iwl_set_tx_power(priv
, val
, false);
550 IWL_ERR(priv
, "failed setting tx power (0x%d).\n",
558 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
560 static struct attribute
*iwl_sysfs_entries
[] = {
561 &dev_attr_temperature
.attr
,
562 &dev_attr_tx_power
.attr
,
563 #ifdef CONFIG_IWLWIFI_DEBUG
564 &dev_attr_debug_level
.attr
,
569 static struct attribute_group iwl_attribute_group
= {
570 .name
= NULL
, /* put in device directory */
571 .attrs
= iwl_sysfs_entries
,
574 /******************************************************************************
576 * uCode download functions
578 ******************************************************************************/
580 static void iwl_free_fw_desc(struct iwl_priv
*priv
, struct fw_desc
*desc
)
583 dma_free_coherent(priv
->bus
.dev
, desc
->len
,
584 desc
->v_addr
, desc
->p_addr
);
589 static void iwl_free_fw_img(struct iwl_priv
*priv
, struct fw_img
*img
)
591 iwl_free_fw_desc(priv
, &img
->code
);
592 iwl_free_fw_desc(priv
, &img
->data
);
595 static void iwl_dealloc_ucode(struct iwl_priv
*priv
)
597 iwl_free_fw_img(priv
, &priv
->ucode_rt
);
598 iwl_free_fw_img(priv
, &priv
->ucode_init
);
601 static int iwl_alloc_fw_desc(struct iwl_priv
*priv
, struct fw_desc
*desc
,
602 const void *data
, size_t len
)
609 desc
->v_addr
= dma_alloc_coherent(priv
->bus
.dev
, len
,
610 &desc
->p_addr
, GFP_KERNEL
);
615 memcpy(desc
->v_addr
, data
, len
);
619 struct iwlagn_ucode_capabilities
{
620 u32 max_probe_length
;
621 u32 standard_phy_calibration_size
;
625 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
);
626 static int iwl_mac_setup_register(struct iwl_priv
*priv
,
627 struct iwlagn_ucode_capabilities
*capa
);
629 #define UCODE_EXPERIMENTAL_INDEX 100
630 #define UCODE_EXPERIMENTAL_TAG "exp"
632 static int __must_check
iwl_request_firmware(struct iwl_priv
*priv
, bool first
)
634 const char *name_pre
= priv
->cfg
->fw_name_pre
;
638 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
639 priv
->fw_index
= UCODE_EXPERIMENTAL_INDEX
;
640 strcpy(tag
, UCODE_EXPERIMENTAL_TAG
);
641 } else if (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
) {
643 priv
->fw_index
= priv
->cfg
->ucode_api_max
;
644 sprintf(tag
, "%d", priv
->fw_index
);
647 sprintf(tag
, "%d", priv
->fw_index
);
650 if (priv
->fw_index
< priv
->cfg
->ucode_api_min
) {
651 IWL_ERR(priv
, "no suitable firmware found!\n");
655 sprintf(priv
->firmware_name
, "%s%s%s", name_pre
, tag
, ".ucode");
657 IWL_DEBUG_INFO(priv
, "attempting to load firmware %s'%s'\n",
658 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
659 ? "EXPERIMENTAL " : "",
660 priv
->firmware_name
);
662 return request_firmware_nowait(THIS_MODULE
, 1, priv
->firmware_name
,
664 GFP_KERNEL
, priv
, iwl_ucode_callback
);
667 struct iwlagn_firmware_pieces
{
668 const void *inst
, *data
, *init
, *init_data
;
669 size_t inst_size
, data_size
, init_size
, init_data_size
;
673 u32 init_evtlog_ptr
, init_evtlog_size
, init_errlog_ptr
;
674 u32 inst_evtlog_ptr
, inst_evtlog_size
, inst_errlog_ptr
;
677 static int iwlagn_load_legacy_firmware(struct iwl_priv
*priv
,
678 const struct firmware
*ucode_raw
,
679 struct iwlagn_firmware_pieces
*pieces
)
681 struct iwl_ucode_header
*ucode
= (void *)ucode_raw
->data
;
682 u32 api_ver
, hdr_size
;
685 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
686 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
691 if (ucode_raw
->size
< hdr_size
) {
692 IWL_ERR(priv
, "File size too small!\n");
695 pieces
->build
= le32_to_cpu(ucode
->u
.v2
.build
);
696 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v2
.inst_size
);
697 pieces
->data_size
= le32_to_cpu(ucode
->u
.v2
.data_size
);
698 pieces
->init_size
= le32_to_cpu(ucode
->u
.v2
.init_size
);
699 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v2
.init_data_size
);
700 src
= ucode
->u
.v2
.data
;
706 if (ucode_raw
->size
< hdr_size
) {
707 IWL_ERR(priv
, "File size too small!\n");
711 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v1
.inst_size
);
712 pieces
->data_size
= le32_to_cpu(ucode
->u
.v1
.data_size
);
713 pieces
->init_size
= le32_to_cpu(ucode
->u
.v1
.init_size
);
714 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v1
.init_data_size
);
715 src
= ucode
->u
.v1
.data
;
719 /* Verify size of file vs. image size info in file's header */
720 if (ucode_raw
->size
!= hdr_size
+ pieces
->inst_size
+
721 pieces
->data_size
+ pieces
->init_size
+
722 pieces
->init_data_size
) {
725 "uCode file size %d does not match expected size\n",
726 (int)ucode_raw
->size
);
731 src
+= pieces
->inst_size
;
733 src
+= pieces
->data_size
;
735 src
+= pieces
->init_size
;
736 pieces
->init_data
= src
;
737 src
+= pieces
->init_data_size
;
742 static int iwlagn_wanted_ucode_alternative
= 1;
744 static int iwlagn_load_firmware(struct iwl_priv
*priv
,
745 const struct firmware
*ucode_raw
,
746 struct iwlagn_firmware_pieces
*pieces
,
747 struct iwlagn_ucode_capabilities
*capa
)
749 struct iwl_tlv_ucode_header
*ucode
= (void *)ucode_raw
->data
;
750 struct iwl_ucode_tlv
*tlv
;
751 size_t len
= ucode_raw
->size
;
753 int wanted_alternative
= iwlagn_wanted_ucode_alternative
, tmp
;
756 enum iwl_ucode_tlv_type tlv_type
;
759 if (len
< sizeof(*ucode
)) {
760 IWL_ERR(priv
, "uCode has invalid length: %zd\n", len
);
764 if (ucode
->magic
!= cpu_to_le32(IWL_TLV_UCODE_MAGIC
)) {
765 IWL_ERR(priv
, "invalid uCode magic: 0X%x\n",
766 le32_to_cpu(ucode
->magic
));
771 * Check which alternatives are present, and "downgrade"
772 * when the chosen alternative is not present, warning
773 * the user when that happens. Some files may not have
774 * any alternatives, so don't warn in that case.
776 alternatives
= le64_to_cpu(ucode
->alternatives
);
777 tmp
= wanted_alternative
;
778 if (wanted_alternative
> 63)
779 wanted_alternative
= 63;
780 while (wanted_alternative
&& !(alternatives
& BIT(wanted_alternative
)))
781 wanted_alternative
--;
782 if (wanted_alternative
&& wanted_alternative
!= tmp
)
784 "uCode alternative %d not available, choosing %d\n",
785 tmp
, wanted_alternative
);
787 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
788 pieces
->build
= le32_to_cpu(ucode
->build
);
791 len
-= sizeof(*ucode
);
793 while (len
>= sizeof(*tlv
)) {
799 tlv_len
= le32_to_cpu(tlv
->length
);
800 tlv_type
= le16_to_cpu(tlv
->type
);
801 tlv_alt
= le16_to_cpu(tlv
->alternative
);
802 tlv_data
= tlv
->data
;
805 IWL_ERR(priv
, "invalid TLV len: %zd/%u\n",
809 len
-= ALIGN(tlv_len
, 4);
810 data
+= sizeof(*tlv
) + ALIGN(tlv_len
, 4);
813 * Alternative 0 is always valid.
815 * Skip alternative TLVs that are not selected.
817 if (tlv_alt
!= 0 && tlv_alt
!= wanted_alternative
)
821 case IWL_UCODE_TLV_INST
:
822 pieces
->inst
= tlv_data
;
823 pieces
->inst_size
= tlv_len
;
825 case IWL_UCODE_TLV_DATA
:
826 pieces
->data
= tlv_data
;
827 pieces
->data_size
= tlv_len
;
829 case IWL_UCODE_TLV_INIT
:
830 pieces
->init
= tlv_data
;
831 pieces
->init_size
= tlv_len
;
833 case IWL_UCODE_TLV_INIT_DATA
:
834 pieces
->init_data
= tlv_data
;
835 pieces
->init_data_size
= tlv_len
;
837 case IWL_UCODE_TLV_BOOT
:
838 IWL_ERR(priv
, "Found unexpected BOOT ucode\n");
840 case IWL_UCODE_TLV_PROBE_MAX_LEN
:
841 if (tlv_len
!= sizeof(u32
))
842 goto invalid_tlv_len
;
843 capa
->max_probe_length
=
844 le32_to_cpup((__le32
*)tlv_data
);
846 case IWL_UCODE_TLV_PAN
:
848 goto invalid_tlv_len
;
849 capa
->flags
|= IWL_UCODE_TLV_FLAGS_PAN
;
851 case IWL_UCODE_TLV_FLAGS
:
852 /* must be at least one u32 */
853 if (tlv_len
< sizeof(u32
))
854 goto invalid_tlv_len
;
855 /* and a proper number of u32s */
856 if (tlv_len
% sizeof(u32
))
857 goto invalid_tlv_len
;
859 * This driver only reads the first u32 as
860 * right now no more features are defined,
861 * if that changes then either the driver
862 * will not work with the new firmware, or
863 * it'll not take advantage of new features.
865 capa
->flags
= le32_to_cpup((__le32
*)tlv_data
);
867 case IWL_UCODE_TLV_INIT_EVTLOG_PTR
:
868 if (tlv_len
!= sizeof(u32
))
869 goto invalid_tlv_len
;
870 pieces
->init_evtlog_ptr
=
871 le32_to_cpup((__le32
*)tlv_data
);
873 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE
:
874 if (tlv_len
!= sizeof(u32
))
875 goto invalid_tlv_len
;
876 pieces
->init_evtlog_size
=
877 le32_to_cpup((__le32
*)tlv_data
);
879 case IWL_UCODE_TLV_INIT_ERRLOG_PTR
:
880 if (tlv_len
!= sizeof(u32
))
881 goto invalid_tlv_len
;
882 pieces
->init_errlog_ptr
=
883 le32_to_cpup((__le32
*)tlv_data
);
885 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR
:
886 if (tlv_len
!= sizeof(u32
))
887 goto invalid_tlv_len
;
888 pieces
->inst_evtlog_ptr
=
889 le32_to_cpup((__le32
*)tlv_data
);
891 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE
:
892 if (tlv_len
!= sizeof(u32
))
893 goto invalid_tlv_len
;
894 pieces
->inst_evtlog_size
=
895 le32_to_cpup((__le32
*)tlv_data
);
897 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR
:
898 if (tlv_len
!= sizeof(u32
))
899 goto invalid_tlv_len
;
900 pieces
->inst_errlog_ptr
=
901 le32_to_cpup((__le32
*)tlv_data
);
903 case IWL_UCODE_TLV_ENHANCE_SENS_TBL
:
905 goto invalid_tlv_len
;
906 priv
->enhance_sensitivity_table
= true;
908 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE
:
909 if (tlv_len
!= sizeof(u32
))
910 goto invalid_tlv_len
;
911 capa
->standard_phy_calibration_size
=
912 le32_to_cpup((__le32
*)tlv_data
);
915 IWL_DEBUG_INFO(priv
, "unknown TLV: %d\n", tlv_type
);
921 IWL_ERR(priv
, "invalid TLV after parsing: %zd\n", len
);
922 iwl_print_hex_dump(priv
, IWL_DL_FW
, (u8
*)data
, len
);
929 IWL_ERR(priv
, "TLV %d has invalid size: %u\n", tlv_type
, tlv_len
);
930 iwl_print_hex_dump(priv
, IWL_DL_FW
, tlv_data
, tlv_len
);
936 * iwl_ucode_callback - callback when firmware was loaded
938 * If loaded successfully, copies the firmware into buffers
939 * for the card to fetch (via DMA).
941 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
)
943 struct iwl_priv
*priv
= context
;
944 struct iwl_ucode_header
*ucode
;
946 struct iwlagn_firmware_pieces pieces
;
947 const unsigned int api_max
= priv
->cfg
->ucode_api_max
;
948 const unsigned int api_min
= priv
->cfg
->ucode_api_min
;
952 struct iwlagn_ucode_capabilities ucode_capa
= {
953 .max_probe_length
= 200,
954 .standard_phy_calibration_size
=
955 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE
,
958 memset(&pieces
, 0, sizeof(pieces
));
961 if (priv
->fw_index
<= priv
->cfg
->ucode_api_max
)
963 "request for firmware file '%s' failed.\n",
964 priv
->firmware_name
);
968 IWL_DEBUG_INFO(priv
, "Loaded firmware file '%s' (%zd bytes).\n",
969 priv
->firmware_name
, ucode_raw
->size
);
971 /* Make sure that we got at least the API version number */
972 if (ucode_raw
->size
< 4) {
973 IWL_ERR(priv
, "File size way too small!\n");
977 /* Data from ucode file: header followed by uCode images */
978 ucode
= (struct iwl_ucode_header
*)ucode_raw
->data
;
981 err
= iwlagn_load_legacy_firmware(priv
, ucode_raw
, &pieces
);
983 err
= iwlagn_load_firmware(priv
, ucode_raw
, &pieces
,
989 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
990 build
= pieces
.build
;
993 * api_ver should match the api version forming part of the
994 * firmware filename ... but we don't check for that and only rely
995 * on the API version read from firmware header from here on forward
997 /* no api version check required for experimental uCode */
998 if (priv
->fw_index
!= UCODE_EXPERIMENTAL_INDEX
) {
999 if (api_ver
< api_min
|| api_ver
> api_max
) {
1001 "Driver unable to support your firmware API. "
1002 "Driver supports v%u, firmware is v%u.\n",
1007 if (api_ver
!= api_max
)
1009 "Firmware has old API version. Expected v%u, "
1010 "got v%u. New firmware can be obtained "
1011 "from http://www.intellinuxwireless.org.\n",
1016 sprintf(buildstr
, " build %u%s", build
,
1017 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
1022 IWL_INFO(priv
, "loaded firmware version %u.%u.%u.%u%s\n",
1023 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1024 IWL_UCODE_MINOR(priv
->ucode_ver
),
1025 IWL_UCODE_API(priv
->ucode_ver
),
1026 IWL_UCODE_SERIAL(priv
->ucode_ver
),
1029 snprintf(priv
->hw
->wiphy
->fw_version
,
1030 sizeof(priv
->hw
->wiphy
->fw_version
),
1032 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1033 IWL_UCODE_MINOR(priv
->ucode_ver
),
1034 IWL_UCODE_API(priv
->ucode_ver
),
1035 IWL_UCODE_SERIAL(priv
->ucode_ver
),
1039 * For any of the failures below (before allocating pci memory)
1040 * we will try to load a version with a smaller API -- maybe the
1041 * user just got a corrupted version of the latest API.
1044 IWL_DEBUG_INFO(priv
, "f/w package hdr ucode version raw = 0x%x\n",
1046 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime inst size = %Zd\n",
1048 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime data size = %Zd\n",
1050 IWL_DEBUG_INFO(priv
, "f/w package hdr init inst size = %Zd\n",
1052 IWL_DEBUG_INFO(priv
, "f/w package hdr init data size = %Zd\n",
1053 pieces
.init_data_size
);
1055 /* Verify that uCode images will fit in card's SRAM */
1056 if (pieces
.inst_size
> priv
->hw_params
.max_inst_size
) {
1057 IWL_ERR(priv
, "uCode instr len %Zd too large to fit in\n",
1062 if (pieces
.data_size
> priv
->hw_params
.max_data_size
) {
1063 IWL_ERR(priv
, "uCode data len %Zd too large to fit in\n",
1068 if (pieces
.init_size
> priv
->hw_params
.max_inst_size
) {
1069 IWL_ERR(priv
, "uCode init instr len %Zd too large to fit in\n",
1074 if (pieces
.init_data_size
> priv
->hw_params
.max_data_size
) {
1075 IWL_ERR(priv
, "uCode init data len %Zd too large to fit in\n",
1076 pieces
.init_data_size
);
1080 /* Allocate ucode buffers for card's bus-master loading ... */
1082 /* Runtime instructions and 2 copies of data:
1083 * 1) unmodified from disk
1084 * 2) backup cache for save/restore during power-downs */
1085 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_rt
.code
,
1086 pieces
.inst
, pieces
.inst_size
))
1088 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_rt
.data
,
1089 pieces
.data
, pieces
.data_size
))
1092 /* Initialization instructions and data */
1093 if (pieces
.init_size
&& pieces
.init_data_size
) {
1094 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_init
.code
,
1095 pieces
.init
, pieces
.init_size
))
1097 if (iwl_alloc_fw_desc(priv
, &priv
->ucode_init
.data
,
1098 pieces
.init_data
, pieces
.init_data_size
))
1102 /* Now that we can no longer fail, copy information */
1105 * The (size - 16) / 12 formula is based on the information recorded
1106 * for each event, which is of mode 1 (including timestamp) for all
1107 * new microcodes that include this information.
1109 priv
->_agn
.init_evtlog_ptr
= pieces
.init_evtlog_ptr
;
1110 if (pieces
.init_evtlog_size
)
1111 priv
->_agn
.init_evtlog_size
= (pieces
.init_evtlog_size
- 16)/12;
1113 priv
->_agn
.init_evtlog_size
=
1114 priv
->cfg
->base_params
->max_event_log_size
;
1115 priv
->_agn
.init_errlog_ptr
= pieces
.init_errlog_ptr
;
1116 priv
->_agn
.inst_evtlog_ptr
= pieces
.inst_evtlog_ptr
;
1117 if (pieces
.inst_evtlog_size
)
1118 priv
->_agn
.inst_evtlog_size
= (pieces
.inst_evtlog_size
- 16)/12;
1120 priv
->_agn
.inst_evtlog_size
=
1121 priv
->cfg
->base_params
->max_event_log_size
;
1122 priv
->_agn
.inst_errlog_ptr
= pieces
.inst_errlog_ptr
;
1124 priv
->new_scan_threshold_behaviour
=
1125 !!(ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_NEWSCAN
);
1127 if ((priv
->cfg
->sku
& EEPROM_SKU_CAP_IPAN_ENABLE
) &&
1128 (ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_PAN
)) {
1129 priv
->valid_contexts
|= BIT(IWL_RXON_CTX_PAN
);
1130 priv
->sta_key_max_num
= STA_KEY_MAX_NUM_PAN
;
1132 priv
->sta_key_max_num
= STA_KEY_MAX_NUM
;
1134 if (priv
->valid_contexts
!= BIT(IWL_RXON_CTX_BSS
))
1135 priv
->cmd_queue
= IWL_IPAN_CMD_QUEUE_NUM
;
1137 priv
->cmd_queue
= IWL_DEFAULT_CMD_QUEUE_NUM
;
1140 * figure out the offset of chain noise reset and gain commands
1141 * base on the size of standard phy calibration commands table size
1143 if (ucode_capa
.standard_phy_calibration_size
>
1144 IWL_MAX_PHY_CALIBRATE_TBL_SIZE
)
1145 ucode_capa
.standard_phy_calibration_size
=
1146 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE
;
1148 priv
->_agn
.phy_calib_chain_noise_reset_cmd
=
1149 ucode_capa
.standard_phy_calibration_size
;
1150 priv
->_agn
.phy_calib_chain_noise_gain_cmd
=
1151 ucode_capa
.standard_phy_calibration_size
+ 1;
1153 /**************************************************
1154 * This is still part of probe() in a sense...
1156 * 9. Setup and register with mac80211 and debugfs
1157 **************************************************/
1158 err
= iwl_mac_setup_register(priv
, &ucode_capa
);
1162 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
1164 IWL_ERR(priv
, "failed to create debugfs files. Ignoring error: %d\n", err
);
1166 err
= sysfs_create_group(&(priv
->bus
.dev
->kobj
),
1167 &iwl_attribute_group
);
1169 IWL_ERR(priv
, "failed to create sysfs device attributes\n");
1173 /* We have our copies now, allow OS release its copies */
1174 release_firmware(ucode_raw
);
1175 complete(&priv
->_agn
.firmware_loading_complete
);
1179 /* try next, if any */
1180 if (iwl_request_firmware(priv
, false))
1182 release_firmware(ucode_raw
);
1186 IWL_ERR(priv
, "failed to allocate pci memory\n");
1187 iwl_dealloc_ucode(priv
);
1189 complete(&priv
->_agn
.firmware_loading_complete
);
1190 device_release_driver(priv
->bus
.dev
);
1191 release_firmware(ucode_raw
);
1194 static const char * const desc_lookup_text
[] = {
1199 "NMI_INTERRUPT_WDG",
1203 "HW_ERROR_TUNE_LOCK",
1204 "HW_ERROR_TEMPERATURE",
1205 "ILLEGAL_CHAN_FREQ",
1208 "NMI_INTERRUPT_HOST",
1209 "NMI_INTERRUPT_ACTION_PT",
1210 "NMI_INTERRUPT_UNKNOWN",
1211 "UCODE_VERSION_MISMATCH",
1212 "HW_ERROR_ABS_LOCK",
1213 "HW_ERROR_CAL_LOCK_FAIL",
1214 "NMI_INTERRUPT_INST_ACTION_PT",
1215 "NMI_INTERRUPT_DATA_ACTION_PT",
1217 "NMI_INTERRUPT_TRM",
1218 "NMI_INTERRUPT_BREAK_POINT",
1225 static struct { char *name
; u8 num
; } advanced_lookup
[] = {
1226 { "NMI_INTERRUPT_WDG", 0x34 },
1227 { "SYSASSERT", 0x35 },
1228 { "UCODE_VERSION_MISMATCH", 0x37 },
1229 { "BAD_COMMAND", 0x38 },
1230 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
1231 { "FATAL_ERROR", 0x3D },
1232 { "NMI_TRM_HW_ERR", 0x46 },
1233 { "NMI_INTERRUPT_TRM", 0x4C },
1234 { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
1235 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
1236 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
1237 { "NMI_INTERRUPT_HOST", 0x66 },
1238 { "NMI_INTERRUPT_ACTION_PT", 0x7C },
1239 { "NMI_INTERRUPT_UNKNOWN", 0x84 },
1240 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
1241 { "ADVANCED_SYSASSERT", 0 },
1244 static const char *desc_lookup(u32 num
)
1247 int max
= ARRAY_SIZE(desc_lookup_text
);
1250 return desc_lookup_text
[num
];
1252 max
= ARRAY_SIZE(advanced_lookup
) - 1;
1253 for (i
= 0; i
< max
; i
++) {
1254 if (advanced_lookup
[i
].num
== num
)
1257 return advanced_lookup
[i
].name
;
1260 #define ERROR_START_OFFSET (1 * sizeof(u32))
1261 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1263 void iwl_dump_nic_error_log(struct iwl_priv
*priv
)
1266 struct iwl_error_event_table table
;
1268 base
= priv
->device_pointers
.error_event_table
;
1269 if (priv
->ucode_type
== IWL_UCODE_INIT
) {
1271 base
= priv
->_agn
.init_errlog_ptr
;
1274 base
= priv
->_agn
.inst_errlog_ptr
;
1277 if (!iwlagn_hw_valid_rtc_data_addr(base
)) {
1279 "Not valid error log pointer 0x%08X for %s uCode\n",
1281 (priv
->ucode_type
== IWL_UCODE_INIT
)
1286 iwl_read_targ_mem_words(priv
, base
, &table
, sizeof(table
));
1288 if (ERROR_START_OFFSET
<= table
.valid
* ERROR_ELEM_SIZE
) {
1289 IWL_ERR(priv
, "Start IWL Error Log Dump:\n");
1290 IWL_ERR(priv
, "Status: 0x%08lX, count: %d\n",
1291 priv
->status
, table
.valid
);
1294 priv
->isr_stats
.err_code
= table
.error_id
;
1296 trace_iwlwifi_dev_ucode_error(priv
, table
.error_id
, table
.tsf_low
,
1297 table
.data1
, table
.data2
, table
.line
,
1298 table
.blink1
, table
.blink2
, table
.ilink1
,
1299 table
.ilink2
, table
.bcon_time
, table
.gp1
,
1300 table
.gp2
, table
.gp3
, table
.ucode_ver
,
1301 table
.hw_ver
, table
.brd_ver
);
1302 IWL_ERR(priv
, "0x%08X | %-28s\n", table
.error_id
,
1303 desc_lookup(table
.error_id
));
1304 IWL_ERR(priv
, "0x%08X | uPc\n", table
.pc
);
1305 IWL_ERR(priv
, "0x%08X | branchlink1\n", table
.blink1
);
1306 IWL_ERR(priv
, "0x%08X | branchlink2\n", table
.blink2
);
1307 IWL_ERR(priv
, "0x%08X | interruptlink1\n", table
.ilink1
);
1308 IWL_ERR(priv
, "0x%08X | interruptlink2\n", table
.ilink2
);
1309 IWL_ERR(priv
, "0x%08X | data1\n", table
.data1
);
1310 IWL_ERR(priv
, "0x%08X | data2\n", table
.data2
);
1311 IWL_ERR(priv
, "0x%08X | line\n", table
.line
);
1312 IWL_ERR(priv
, "0x%08X | beacon time\n", table
.bcon_time
);
1313 IWL_ERR(priv
, "0x%08X | tsf low\n", table
.tsf_low
);
1314 IWL_ERR(priv
, "0x%08X | tsf hi\n", table
.tsf_hi
);
1315 IWL_ERR(priv
, "0x%08X | time gp1\n", table
.gp1
);
1316 IWL_ERR(priv
, "0x%08X | time gp2\n", table
.gp2
);
1317 IWL_ERR(priv
, "0x%08X | time gp3\n", table
.gp3
);
1318 IWL_ERR(priv
, "0x%08X | uCode version\n", table
.ucode_ver
);
1319 IWL_ERR(priv
, "0x%08X | hw version\n", table
.hw_ver
);
1320 IWL_ERR(priv
, "0x%08X | board version\n", table
.brd_ver
);
1321 IWL_ERR(priv
, "0x%08X | hcmd\n", table
.hcmd
);
1324 #define EVENT_START_OFFSET (4 * sizeof(u32))
1327 * iwl_print_event_log - Dump error event log to syslog
1330 static int iwl_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
1331 u32 num_events
, u32 mode
,
1332 int pos
, char **buf
, size_t bufsz
)
1335 u32 base
; /* SRAM byte address of event log header */
1336 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
1337 u32 ptr
; /* SRAM byte address of log data */
1338 u32 ev
, time
, data
; /* event log data */
1339 unsigned long reg_flags
;
1341 if (num_events
== 0)
1344 base
= priv
->device_pointers
.log_event_table
;
1345 if (priv
->ucode_type
== IWL_UCODE_INIT
) {
1347 base
= priv
->_agn
.init_evtlog_ptr
;
1350 base
= priv
->_agn
.inst_evtlog_ptr
;
1354 event_size
= 2 * sizeof(u32
);
1356 event_size
= 3 * sizeof(u32
);
1358 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
1360 /* Make sure device is powered up for SRAM reads */
1361 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
1362 iwl_grab_nic_access(priv
);
1364 /* Set starting address; reads will auto-increment */
1365 iwl_write32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
1368 /* "time" is actually "data" for mode 0 (no timestamp).
1369 * place event id # at far right for easier visual parsing. */
1370 for (i
= 0; i
< num_events
; i
++) {
1371 ev
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
1372 time
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
1376 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
1377 "EVT_LOG:0x%08x:%04u\n",
1380 trace_iwlwifi_dev_ucode_event(priv
, 0,
1382 IWL_ERR(priv
, "EVT_LOG:0x%08x:%04u\n",
1386 data
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
1388 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
1389 "EVT_LOGT:%010u:0x%08x:%04u\n",
1392 IWL_ERR(priv
, "EVT_LOGT:%010u:0x%08x:%04u\n",
1394 trace_iwlwifi_dev_ucode_event(priv
, time
,
1400 /* Allow device to power down */
1401 iwl_release_nic_access(priv
);
1402 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
1407 * iwl_print_last_event_logs - Dump the newest # of event log to syslog
1409 static int iwl_print_last_event_logs(struct iwl_priv
*priv
, u32 capacity
,
1410 u32 num_wraps
, u32 next_entry
,
1412 int pos
, char **buf
, size_t bufsz
)
1415 * display the newest DEFAULT_LOG_ENTRIES entries
1416 * i.e the entries just before the next ont that uCode would fill.
1419 if (next_entry
< size
) {
1420 pos
= iwl_print_event_log(priv
,
1421 capacity
- (size
- next_entry
),
1422 size
- next_entry
, mode
,
1424 pos
= iwl_print_event_log(priv
, 0,
1428 pos
= iwl_print_event_log(priv
, next_entry
- size
,
1429 size
, mode
, pos
, buf
, bufsz
);
1431 if (next_entry
< size
) {
1432 pos
= iwl_print_event_log(priv
, 0, next_entry
,
1433 mode
, pos
, buf
, bufsz
);
1435 pos
= iwl_print_event_log(priv
, next_entry
- size
,
1436 size
, mode
, pos
, buf
, bufsz
);
1442 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
1444 int iwl_dump_nic_event_log(struct iwl_priv
*priv
, bool full_log
,
1445 char **buf
, bool display
)
1447 u32 base
; /* SRAM byte address of event log header */
1448 u32 capacity
; /* event log capacity in # entries */
1449 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
1450 u32 num_wraps
; /* # times uCode wrapped to top of log */
1451 u32 next_entry
; /* index of next entry to be written by uCode */
1452 u32 size
; /* # entries that we'll print */
1457 base
= priv
->device_pointers
.log_event_table
;
1458 if (priv
->ucode_type
== IWL_UCODE_INIT
) {
1459 logsize
= priv
->_agn
.init_evtlog_size
;
1461 base
= priv
->_agn
.init_evtlog_ptr
;
1463 logsize
= priv
->_agn
.inst_evtlog_size
;
1465 base
= priv
->_agn
.inst_evtlog_ptr
;
1468 if (!iwlagn_hw_valid_rtc_data_addr(base
)) {
1470 "Invalid event log pointer 0x%08X for %s uCode\n",
1472 (priv
->ucode_type
== IWL_UCODE_INIT
)
1477 /* event log header */
1478 capacity
= iwl_read_targ_mem(priv
, base
);
1479 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
1480 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
1481 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
1483 if (capacity
> logsize
) {
1484 IWL_ERR(priv
, "Log capacity %d is bogus, limit to %d entries\n",
1489 if (next_entry
> logsize
) {
1490 IWL_ERR(priv
, "Log write index %d is bogus, limit to %d\n",
1491 next_entry
, logsize
);
1492 next_entry
= logsize
;
1495 size
= num_wraps
? capacity
: next_entry
;
1497 /* bail out if nothing in log */
1499 IWL_ERR(priv
, "Start IWL Event Log Dump: nothing in log\n");
1503 /* enable/disable bt channel inhibition */
1504 priv
->bt_ch_announce
= iwlagn_bt_ch_announce
;
1506 #ifdef CONFIG_IWLWIFI_DEBUG
1507 if (!(iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) && !full_log
)
1508 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
1509 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
1511 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
1512 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
1514 IWL_ERR(priv
, "Start IWL Event Log Dump: display last %u entries\n",
1517 #ifdef CONFIG_IWLWIFI_DEBUG
1520 bufsz
= capacity
* 48;
1523 *buf
= kmalloc(bufsz
, GFP_KERNEL
);
1527 if ((iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) || full_log
) {
1529 * if uCode has wrapped back to top of log,
1530 * start at the oldest entry,
1531 * i.e the next one that uCode would fill.
1534 pos
= iwl_print_event_log(priv
, next_entry
,
1535 capacity
- next_entry
, mode
,
1537 /* (then/else) start at top of log */
1538 pos
= iwl_print_event_log(priv
, 0,
1539 next_entry
, mode
, pos
, buf
, bufsz
);
1541 pos
= iwl_print_last_event_logs(priv
, capacity
, num_wraps
,
1542 next_entry
, size
, mode
,
1545 pos
= iwl_print_last_event_logs(priv
, capacity
, num_wraps
,
1546 next_entry
, size
, mode
,
1552 static void iwl_rf_kill_ct_config(struct iwl_priv
*priv
)
1554 struct iwl_ct_kill_config cmd
;
1555 struct iwl_ct_kill_throttling_config adv_cmd
;
1556 unsigned long flags
;
1559 spin_lock_irqsave(&priv
->lock
, flags
);
1560 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
1561 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
1562 spin_unlock_irqrestore(&priv
->lock
, flags
);
1563 priv
->thermal_throttle
.ct_kill_toggle
= false;
1565 if (priv
->cfg
->base_params
->support_ct_kill_exit
) {
1566 adv_cmd
.critical_temperature_enter
=
1567 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
1568 adv_cmd
.critical_temperature_exit
=
1569 cpu_to_le32(priv
->hw_params
.ct_kill_exit_threshold
);
1571 ret
= trans_send_cmd_pdu(priv
,
1572 REPLY_CT_KILL_CONFIG_CMD
,
1573 CMD_SYNC
, sizeof(adv_cmd
), &adv_cmd
);
1575 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1577 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1579 "critical temperature enter is %d,"
1581 priv
->hw_params
.ct_kill_threshold
,
1582 priv
->hw_params
.ct_kill_exit_threshold
);
1584 cmd
.critical_temperature_R
=
1585 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
1587 ret
= trans_send_cmd_pdu(priv
,
1588 REPLY_CT_KILL_CONFIG_CMD
,
1589 CMD_SYNC
, sizeof(cmd
), &cmd
);
1591 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1593 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1595 "critical temperature is %d\n",
1596 priv
->hw_params
.ct_kill_threshold
);
1600 static int iwlagn_send_calib_cfg_rt(struct iwl_priv
*priv
, u32 cfg
)
1602 struct iwl_calib_cfg_cmd calib_cfg_cmd
;
1603 struct iwl_host_cmd cmd
= {
1604 .id
= CALIBRATION_CFG_CMD
,
1605 .len
= { sizeof(struct iwl_calib_cfg_cmd
), },
1606 .data
= { &calib_cfg_cmd
, },
1609 memset(&calib_cfg_cmd
, 0, sizeof(calib_cfg_cmd
));
1610 calib_cfg_cmd
.ucd_calib_cfg
.once
.is_enable
= IWL_CALIB_INIT_CFG_ALL
;
1611 calib_cfg_cmd
.ucd_calib_cfg
.once
.start
= cpu_to_le32(cfg
);
1613 return trans_send_cmd(priv
, &cmd
);
1617 static int iwlagn_send_tx_ant_config(struct iwl_priv
*priv
, u8 valid_tx_ant
)
1619 struct iwl_tx_ant_config_cmd tx_ant_cmd
= {
1620 .valid
= cpu_to_le32(valid_tx_ant
),
1623 if (IWL_UCODE_API(priv
->ucode_ver
) > 1) {
1624 IWL_DEBUG_HC(priv
, "select valid tx ant: %u\n", valid_tx_ant
);
1625 return trans_send_cmd_pdu(priv
,
1626 TX_ANT_CONFIGURATION_CMD
,
1628 sizeof(struct iwl_tx_ant_config_cmd
),
1631 IWL_DEBUG_HC(priv
, "TX_ANT_CONFIGURATION_CMD not supported\n");
1637 * iwl_alive_start - called after REPLY_ALIVE notification received
1638 * from protocol/runtime uCode (initialization uCode's
1639 * Alive gets handled by iwl_init_alive_start()).
1641 int iwl_alive_start(struct iwl_priv
*priv
)
1644 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
1646 iwl_reset_ict(priv
);
1648 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
1650 /* After the ALIVE response, we can send host commands to the uCode */
1651 set_bit(STATUS_ALIVE
, &priv
->status
);
1653 /* Enable watchdog to monitor the driver tx queues */
1654 iwl_setup_watchdog(priv
);
1656 if (iwl_is_rfkill(priv
))
1659 /* download priority table before any calibration request */
1660 if (priv
->cfg
->bt_params
&&
1661 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
1662 /* Configure Bluetooth device coexistence support */
1663 if (priv
->cfg
->bt_params
->bt_sco_disable
)
1664 priv
->bt_enable_pspoll
= false;
1666 priv
->bt_enable_pspoll
= true;
1668 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
1669 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
1670 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
1671 iwlagn_send_advance_bt_config(priv
);
1672 priv
->bt_valid
= IWLAGN_BT_VALID_ENABLE_FLAGS
;
1673 priv
->cur_rssi_ctx
= NULL
;
1675 iwlagn_send_prio_tbl(priv
);
1677 /* FIXME: w/a to force change uCode BT state machine */
1678 ret
= iwlagn_send_bt_env(priv
, IWL_BT_COEX_ENV_OPEN
,
1679 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
1682 ret
= iwlagn_send_bt_env(priv
, IWL_BT_COEX_ENV_CLOSE
,
1683 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
1688 * default is 2-wire BT coexexistence support
1690 iwl_send_bt_config(priv
);
1693 if (priv
->hw_params
.calib_rt_cfg
)
1694 iwlagn_send_calib_cfg_rt(priv
, priv
->hw_params
.calib_rt_cfg
);
1696 ieee80211_wake_queues(priv
->hw
);
1698 priv
->active_rate
= IWL_RATES_MASK
;
1700 /* Configure Tx antenna selection based on H/W config */
1701 iwlagn_send_tx_ant_config(priv
, priv
->cfg
->valid_tx_ant
);
1703 if (iwl_is_associated_ctx(ctx
)) {
1704 struct iwl_rxon_cmd
*active_rxon
=
1705 (struct iwl_rxon_cmd
*)&ctx
->active
;
1706 /* apply any changes in staging */
1707 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
1708 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1710 struct iwl_rxon_context
*tmp
;
1711 /* Initialize our rx_config data */
1712 for_each_context(priv
, tmp
)
1713 iwl_connection_init_rx_config(priv
, tmp
);
1715 iwlagn_set_rxon_chain(priv
, ctx
);
1718 iwl_reset_run_time_calib(priv
);
1720 set_bit(STATUS_READY
, &priv
->status
);
1722 /* Configure the adapter for unassociated operation */
1723 ret
= iwlagn_commit_rxon(priv
, ctx
);
1727 /* At this point, the NIC is initialized and operational */
1728 iwl_rf_kill_ct_config(priv
);
1730 IWL_DEBUG_INFO(priv
, "ALIVE processing complete.\n");
1732 return iwl_power_update_mode(priv
, true);
1735 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
);
1737 static void __iwl_down(struct iwl_priv
*priv
)
1741 IWL_DEBUG_INFO(priv
, DRV_NAME
" is going down\n");
1743 iwl_scan_cancel_timeout(priv
, 200);
1745 exit_pending
= test_and_set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
1747 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
1748 * to prevent rearm timer */
1749 del_timer_sync(&priv
->watchdog
);
1751 iwl_clear_ucode_stations(priv
, NULL
);
1752 iwl_dealloc_bcast_stations(priv
);
1753 iwl_clear_driver_stations(priv
);
1755 /* reset BT coex data */
1756 priv
->bt_status
= 0;
1757 priv
->cur_rssi_ctx
= NULL
;
1758 priv
->bt_is_sco
= 0;
1759 if (priv
->cfg
->bt_params
)
1760 priv
->bt_traffic_load
=
1761 priv
->cfg
->bt_params
->bt_init_traffic_load
;
1763 priv
->bt_traffic_load
= 0;
1764 priv
->bt_full_concurrent
= false;
1765 priv
->bt_ci_compliance
= 0;
1767 /* Wipe out the EXIT_PENDING status bit if we are not actually
1768 * exiting the module */
1770 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
1772 if (priv
->mac80211_registered
)
1773 ieee80211_stop_queues(priv
->hw
);
1775 /* Clear out all status bits but a few that are stable across reset */
1776 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
1778 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
1779 STATUS_GEO_CONFIGURED
|
1780 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
1782 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
1783 STATUS_EXIT_PENDING
;
1785 iwlagn_stop_device(priv
);
1787 dev_kfree_skb(priv
->beacon_skb
);
1788 priv
->beacon_skb
= NULL
;
1791 static void iwl_down(struct iwl_priv
*priv
)
1793 mutex_lock(&priv
->mutex
);
1795 mutex_unlock(&priv
->mutex
);
1797 iwl_cancel_deferred_work(priv
);
1800 #define HW_READY_TIMEOUT (50)
1802 /* Note: returns poll_bit return value, which is >= 0 if success */
1803 static int iwl_set_hw_ready(struct iwl_priv
*priv
)
1807 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
1808 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
);
1810 /* See if we got it */
1811 ret
= iwl_poll_bit(priv
, CSR_HW_IF_CONFIG_REG
,
1812 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
,
1813 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
,
1816 IWL_DEBUG_INFO(priv
, "hardware%s ready\n", ret
< 0 ? " not" : "");
1820 /* Note: returns standard 0/-ERROR code */
1821 int iwl_prepare_card_hw(struct iwl_priv
*priv
)
1825 IWL_DEBUG_INFO(priv
, "iwl_prepare_card_hw enter\n");
1827 ret
= iwl_set_hw_ready(priv
);
1831 /* If HW is not ready, prepare the conditions to check again */
1832 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
1833 CSR_HW_IF_CONFIG_REG_PREPARE
);
1835 ret
= iwl_poll_bit(priv
, CSR_HW_IF_CONFIG_REG
,
1836 ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE
,
1837 CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE
, 150000);
1842 /* HW should be ready by now, check again. */
1843 ret
= iwl_set_hw_ready(priv
);
1849 #define MAX_HW_RESTARTS 5
1851 static int __iwl_up(struct iwl_priv
*priv
)
1853 struct iwl_rxon_context
*ctx
;
1856 lockdep_assert_held(&priv
->mutex
);
1858 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
1859 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
1863 for_each_context(priv
, ctx
) {
1864 ret
= iwlagn_alloc_bcast_station(priv
, ctx
);
1866 iwl_dealloc_bcast_stations(priv
);
1871 ret
= iwlagn_run_init_ucode(priv
);
1873 IWL_ERR(priv
, "Failed to run INIT ucode: %d\n", ret
);
1877 ret
= iwlagn_load_ucode_wait_alive(priv
,
1881 IWL_ERR(priv
, "Failed to start RT ucode: %d\n", ret
);
1885 ret
= iwl_alive_start(priv
);
1891 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
1893 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
1895 IWL_ERR(priv
, "Unable to initialize device.\n");
1900 /*****************************************************************************
1902 * Workqueue callbacks
1904 *****************************************************************************/
1906 static void iwl_bg_run_time_calib_work(struct work_struct
*work
)
1908 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
1909 run_time_calib_work
);
1911 mutex_lock(&priv
->mutex
);
1913 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
1914 test_bit(STATUS_SCANNING
, &priv
->status
)) {
1915 mutex_unlock(&priv
->mutex
);
1919 if (priv
->start_calib
) {
1920 iwl_chain_noise_calibration(priv
);
1921 iwl_sensitivity_calibration(priv
);
1924 mutex_unlock(&priv
->mutex
);
1927 static void iwlagn_prepare_restart(struct iwl_priv
*priv
)
1929 struct iwl_rxon_context
*ctx
;
1930 bool bt_full_concurrent
;
1931 u8 bt_ci_compliance
;
1936 lockdep_assert_held(&priv
->mutex
);
1938 for_each_context(priv
, ctx
)
1943 * __iwl_down() will clear the BT status variables,
1944 * which is correct, but when we restart we really
1945 * want to keep them so restore them afterwards.
1947 * The restart process will later pick them up and
1948 * re-configure the hw when we reconfigure the BT
1951 bt_full_concurrent
= priv
->bt_full_concurrent
;
1952 bt_ci_compliance
= priv
->bt_ci_compliance
;
1953 bt_load
= priv
->bt_traffic_load
;
1954 bt_status
= priv
->bt_status
;
1955 bt_is_sco
= priv
->bt_is_sco
;
1959 priv
->bt_full_concurrent
= bt_full_concurrent
;
1960 priv
->bt_ci_compliance
= bt_ci_compliance
;
1961 priv
->bt_traffic_load
= bt_load
;
1962 priv
->bt_status
= bt_status
;
1963 priv
->bt_is_sco
= bt_is_sco
;
1966 static void iwl_bg_restart(struct work_struct
*data
)
1968 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
1970 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
1973 if (test_and_clear_bit(STATUS_FW_ERROR
, &priv
->status
)) {
1974 mutex_lock(&priv
->mutex
);
1975 iwlagn_prepare_restart(priv
);
1976 mutex_unlock(&priv
->mutex
);
1977 iwl_cancel_deferred_work(priv
);
1978 ieee80211_restart_hw(priv
->hw
);
1984 static int iwl_mac_offchannel_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
1985 struct ieee80211_channel
*chan
,
1986 enum nl80211_channel_type channel_type
,
1989 struct iwl_priv
*priv
= hw
->priv
;
1992 /* Not supported if we don't have PAN */
1993 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
))) {
1998 /* Not supported on pre-P2P firmware */
1999 if (!(priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
&
2000 BIT(NL80211_IFTYPE_P2P_CLIENT
))) {
2005 mutex_lock(&priv
->mutex
);
2007 if (!priv
->contexts
[IWL_RXON_CTX_PAN
].is_active
) {
2009 * If the PAN context is free, use the normal
2010 * way of doing remain-on-channel offload + TX.
2016 /* TODO: queue up if scanning? */
2017 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
2018 priv
->_agn
.offchan_tx_skb
) {
2024 * max_scan_ie_len doesn't include the blank SSID or the header,
2025 * so need to add that again here.
2027 if (skb
->len
> hw
->wiphy
->max_scan_ie_len
+ 24 + 2) {
2032 priv
->_agn
.offchan_tx_skb
= skb
;
2033 priv
->_agn
.offchan_tx_timeout
= wait
;
2034 priv
->_agn
.offchan_tx_chan
= chan
;
2036 ret
= iwl_scan_initiate(priv
, priv
->contexts
[IWL_RXON_CTX_PAN
].vif
,
2037 IWL_SCAN_OFFCH_TX
, chan
->band
);
2039 priv
->_agn
.offchan_tx_skb
= NULL
;
2041 mutex_unlock(&priv
->mutex
);
2049 static int iwl_mac_offchannel_tx_cancel_wait(struct ieee80211_hw
*hw
)
2051 struct iwl_priv
*priv
= hw
->priv
;
2054 mutex_lock(&priv
->mutex
);
2056 if (!priv
->_agn
.offchan_tx_skb
) {
2061 priv
->_agn
.offchan_tx_skb
= NULL
;
2063 ret
= iwl_scan_cancel_timeout(priv
, 200);
2067 mutex_unlock(&priv
->mutex
);
2072 /*****************************************************************************
2074 * mac80211 entry point functions
2076 *****************************************************************************/
2078 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits
[] = {
2081 .types
= BIT(NL80211_IFTYPE_STATION
),
2085 .types
= BIT(NL80211_IFTYPE_AP
),
2089 static const struct ieee80211_iface_limit iwlagn_2sta_limits
[] = {
2092 .types
= BIT(NL80211_IFTYPE_STATION
),
2096 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits
[] = {
2099 .types
= BIT(NL80211_IFTYPE_STATION
),
2103 .types
= BIT(NL80211_IFTYPE_P2P_GO
) |
2104 BIT(NL80211_IFTYPE_AP
),
2108 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits
[] = {
2111 .types
= BIT(NL80211_IFTYPE_STATION
),
2115 .types
= BIT(NL80211_IFTYPE_P2P_CLIENT
),
2119 static const struct ieee80211_iface_combination
2120 iwlagn_iface_combinations_dualmode
[] = {
2121 { .num_different_channels
= 1,
2122 .max_interfaces
= 2,
2123 .beacon_int_infra_match
= true,
2124 .limits
= iwlagn_sta_ap_limits
,
2125 .n_limits
= ARRAY_SIZE(iwlagn_sta_ap_limits
),
2127 { .num_different_channels
= 1,
2128 .max_interfaces
= 2,
2129 .limits
= iwlagn_2sta_limits
,
2130 .n_limits
= ARRAY_SIZE(iwlagn_2sta_limits
),
2134 static const struct ieee80211_iface_combination
2135 iwlagn_iface_combinations_p2p
[] = {
2136 { .num_different_channels
= 1,
2137 .max_interfaces
= 2,
2138 .beacon_int_infra_match
= true,
2139 .limits
= iwlagn_p2p_sta_go_limits
,
2140 .n_limits
= ARRAY_SIZE(iwlagn_p2p_sta_go_limits
),
2142 { .num_different_channels
= 1,
2143 .max_interfaces
= 2,
2144 .limits
= iwlagn_p2p_2sta_limits
,
2145 .n_limits
= ARRAY_SIZE(iwlagn_p2p_2sta_limits
),
2150 * Not a mac80211 entry point function, but it fits in with all the
2151 * other mac80211 functions grouped here.
2153 static int iwl_mac_setup_register(struct iwl_priv
*priv
,
2154 struct iwlagn_ucode_capabilities
*capa
)
2157 struct ieee80211_hw
*hw
= priv
->hw
;
2158 struct iwl_rxon_context
*ctx
;
2160 hw
->rate_control_algorithm
= "iwl-agn-rs";
2162 /* Tell mac80211 our characteristics */
2163 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
2164 IEEE80211_HW_AMPDU_AGGREGATION
|
2165 IEEE80211_HW_NEED_DTIM_PERIOD
|
2166 IEEE80211_HW_SPECTRUM_MGMT
|
2167 IEEE80211_HW_REPORTS_TX_ACK_STATUS
;
2169 hw
->max_tx_aggregation_subframes
= LINK_QUAL_AGG_FRAME_LIMIT_DEF
;
2171 hw
->flags
|= IEEE80211_HW_SUPPORTS_PS
|
2172 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
;
2174 if (priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
)
2175 hw
->flags
|= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
2176 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
2178 if (capa
->flags
& IWL_UCODE_TLV_FLAGS_MFP
)
2179 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
2181 hw
->sta_data_size
= sizeof(struct iwl_station_priv
);
2182 hw
->vif_data_size
= sizeof(struct iwl_vif_priv
);
2184 for_each_context(priv
, ctx
) {
2185 hw
->wiphy
->interface_modes
|= ctx
->interface_modes
;
2186 hw
->wiphy
->interface_modes
|= ctx
->exclusive_interface_modes
;
2189 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
2191 if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)) {
2192 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_p2p
;
2193 hw
->wiphy
->n_iface_combinations
=
2194 ARRAY_SIZE(iwlagn_iface_combinations_p2p
);
2195 } else if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_AP
)) {
2196 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_dualmode
;
2197 hw
->wiphy
->n_iface_combinations
=
2198 ARRAY_SIZE(iwlagn_iface_combinations_dualmode
);
2201 hw
->wiphy
->max_remain_on_channel_duration
= 1000;
2203 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
|
2204 WIPHY_FLAG_DISABLE_BEACON_HINTS
|
2205 WIPHY_FLAG_IBSS_RSN
;
2207 if (iwlagn_mod_params
.power_save
)
2208 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
2210 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
2212 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
2213 /* we create the 802.11 header and a zero-length SSID element */
2214 hw
->wiphy
->max_scan_ie_len
= capa
->max_probe_length
- 24 - 2;
2216 /* Default value; 4 EDCA QOS priorities */
2219 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
2221 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
2222 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
2223 &priv
->bands
[IEEE80211_BAND_2GHZ
];
2224 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
2225 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
2226 &priv
->bands
[IEEE80211_BAND_5GHZ
];
2228 iwl_leds_init(priv
);
2230 ret
= ieee80211_register_hw(priv
->hw
);
2232 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
2235 priv
->mac80211_registered
= 1;
2241 static int iwlagn_mac_start(struct ieee80211_hw
*hw
)
2243 struct iwl_priv
*priv
= hw
->priv
;
2246 IWL_DEBUG_MAC80211(priv
, "enter\n");
2248 /* we should be verifying the device is ready to be opened */
2249 mutex_lock(&priv
->mutex
);
2250 ret
= __iwl_up(priv
);
2251 mutex_unlock(&priv
->mutex
);
2255 IWL_DEBUG_INFO(priv
, "Start UP work done.\n");
2257 /* Now we should be done, and the READY bit should be set. */
2258 if (WARN_ON(!test_bit(STATUS_READY
, &priv
->status
)))
2261 iwlagn_led_enable(priv
);
2264 IWL_DEBUG_MAC80211(priv
, "leave\n");
2268 static void iwlagn_mac_stop(struct ieee80211_hw
*hw
)
2270 struct iwl_priv
*priv
= hw
->priv
;
2272 IWL_DEBUG_MAC80211(priv
, "enter\n");
2281 flush_workqueue(priv
->workqueue
);
2283 /* User space software may expect getting rfkill changes
2284 * even if interface is down */
2285 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
2286 iwl_enable_rfkill_int(priv
);
2288 IWL_DEBUG_MAC80211(priv
, "leave\n");
2291 static void iwlagn_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
2293 struct iwl_priv
*priv
= hw
->priv
;
2295 IWL_DEBUG_MACDUMP(priv
, "enter\n");
2297 IWL_DEBUG_TX(priv
, "dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
2298 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
2300 if (iwlagn_tx_skb(priv
, skb
))
2301 dev_kfree_skb_any(skb
);
2303 IWL_DEBUG_MACDUMP(priv
, "leave\n");
2306 static void iwlagn_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2307 struct ieee80211_vif
*vif
,
2308 struct ieee80211_key_conf
*keyconf
,
2309 struct ieee80211_sta
*sta
,
2310 u32 iv32
, u16
*phase1key
)
2312 struct iwl_priv
*priv
= hw
->priv
;
2313 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2315 IWL_DEBUG_MAC80211(priv
, "enter\n");
2317 iwl_update_tkip_key(priv
, vif_priv
->ctx
, keyconf
, sta
,
2320 IWL_DEBUG_MAC80211(priv
, "leave\n");
2323 static int iwlagn_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
2324 struct ieee80211_vif
*vif
,
2325 struct ieee80211_sta
*sta
,
2326 struct ieee80211_key_conf
*key
)
2328 struct iwl_priv
*priv
= hw
->priv
;
2329 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2330 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
2333 bool is_default_wep_key
= false;
2335 IWL_DEBUG_MAC80211(priv
, "enter\n");
2337 if (iwlagn_mod_params
.sw_crypto
) {
2338 IWL_DEBUG_MAC80211(priv
, "leave - hwcrypto disabled\n");
2343 * To support IBSS RSN, don't program group keys in IBSS, the
2344 * hardware will then not attempt to decrypt the frames.
2346 if (vif
->type
== NL80211_IFTYPE_ADHOC
&&
2347 !(key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
))
2350 sta_id
= iwl_sta_id_or_broadcast(priv
, vif_priv
->ctx
, sta
);
2351 if (sta_id
== IWL_INVALID_STATION
)
2354 mutex_lock(&priv
->mutex
);
2355 iwl_scan_cancel_timeout(priv
, 100);
2358 * If we are getting WEP group key and we didn't receive any key mapping
2359 * so far, we are in legacy wep mode (group key only), otherwise we are
2361 * In legacy wep mode, we use another host command to the uCode.
2363 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
2364 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) &&
2367 is_default_wep_key
= !ctx
->key_mapping_keys
;
2369 is_default_wep_key
=
2370 (key
->hw_key_idx
== HW_KEY_DEFAULT
);
2375 if (is_default_wep_key
)
2376 ret
= iwl_set_default_wep_key(priv
, vif_priv
->ctx
, key
);
2378 ret
= iwl_set_dynamic_key(priv
, vif_priv
->ctx
,
2381 IWL_DEBUG_MAC80211(priv
, "enable hwcrypto key\n");
2384 if (is_default_wep_key
)
2385 ret
= iwl_remove_default_wep_key(priv
, ctx
, key
);
2387 ret
= iwl_remove_dynamic_key(priv
, ctx
, key
, sta_id
);
2389 IWL_DEBUG_MAC80211(priv
, "disable hwcrypto key\n");
2395 mutex_unlock(&priv
->mutex
);
2396 IWL_DEBUG_MAC80211(priv
, "leave\n");
2401 static int iwlagn_mac_ampdu_action(struct ieee80211_hw
*hw
,
2402 struct ieee80211_vif
*vif
,
2403 enum ieee80211_ampdu_mlme_action action
,
2404 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
2407 struct iwl_priv
*priv
= hw
->priv
;
2409 struct iwl_station_priv
*sta_priv
= (void *) sta
->drv_priv
;
2411 IWL_DEBUG_HT(priv
, "A-MPDU action on addr %pM tid %d\n",
2414 if (!(priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
))
2417 mutex_lock(&priv
->mutex
);
2420 case IEEE80211_AMPDU_RX_START
:
2421 IWL_DEBUG_HT(priv
, "start Rx\n");
2422 ret
= iwl_sta_rx_agg_start(priv
, sta
, tid
, *ssn
);
2424 case IEEE80211_AMPDU_RX_STOP
:
2425 IWL_DEBUG_HT(priv
, "stop Rx\n");
2426 ret
= iwl_sta_rx_agg_stop(priv
, sta
, tid
);
2427 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2430 case IEEE80211_AMPDU_TX_START
:
2431 IWL_DEBUG_HT(priv
, "start Tx\n");
2432 ret
= iwlagn_tx_agg_start(priv
, vif
, sta
, tid
, ssn
);
2434 priv
->_agn
.agg_tids_count
++;
2435 IWL_DEBUG_HT(priv
, "priv->_agn.agg_tids_count = %u\n",
2436 priv
->_agn
.agg_tids_count
);
2439 case IEEE80211_AMPDU_TX_STOP
:
2440 IWL_DEBUG_HT(priv
, "stop Tx\n");
2441 ret
= iwlagn_tx_agg_stop(priv
, vif
, sta
, tid
);
2442 if ((ret
== 0) && (priv
->_agn
.agg_tids_count
> 0)) {
2443 priv
->_agn
.agg_tids_count
--;
2444 IWL_DEBUG_HT(priv
, "priv->_agn.agg_tids_count = %u\n",
2445 priv
->_agn
.agg_tids_count
);
2447 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2449 if (priv
->cfg
->ht_params
&&
2450 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
2452 * switch off RTS/CTS if it was previously enabled
2454 sta_priv
->lq_sta
.lq
.general_params
.flags
&=
2455 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
2456 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
2457 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
2460 case IEEE80211_AMPDU_TX_OPERATIONAL
:
2461 buf_size
= min_t(int, buf_size
, LINK_QUAL_AGG_FRAME_LIMIT_DEF
);
2463 iwlagn_txq_agg_queue_setup(priv
, sta
, tid
, buf_size
);
2466 * If the limit is 0, then it wasn't initialised yet,
2467 * use the default. We can do that since we take the
2468 * minimum below, and we don't want to go above our
2469 * default due to hardware restrictions.
2471 if (sta_priv
->max_agg_bufsize
== 0)
2472 sta_priv
->max_agg_bufsize
=
2473 LINK_QUAL_AGG_FRAME_LIMIT_DEF
;
2476 * Even though in theory the peer could have different
2477 * aggregation reorder buffer sizes for different sessions,
2478 * our ucode doesn't allow for that and has a global limit
2479 * for each station. Therefore, use the minimum of all the
2480 * aggregation sessions and our default value.
2482 sta_priv
->max_agg_bufsize
=
2483 min(sta_priv
->max_agg_bufsize
, buf_size
);
2485 if (priv
->cfg
->ht_params
&&
2486 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
2488 * switch to RTS/CTS if it is the prefer protection
2489 * method for HT traffic
2492 sta_priv
->lq_sta
.lq
.general_params
.flags
|=
2493 LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
2496 sta_priv
->lq_sta
.lq
.agg_params
.agg_frame_cnt_limit
=
2497 sta_priv
->max_agg_bufsize
;
2499 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
2500 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
2502 IWL_INFO(priv
, "Tx aggregation enabled on ra = %pM tid = %d\n",
2507 mutex_unlock(&priv
->mutex
);
2512 static int iwlagn_mac_sta_add(struct ieee80211_hw
*hw
,
2513 struct ieee80211_vif
*vif
,
2514 struct ieee80211_sta
*sta
)
2516 struct iwl_priv
*priv
= hw
->priv
;
2517 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
2518 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2519 bool is_ap
= vif
->type
== NL80211_IFTYPE_STATION
;
2523 IWL_DEBUG_INFO(priv
, "received request to add station %pM\n",
2525 mutex_lock(&priv
->mutex
);
2526 IWL_DEBUG_INFO(priv
, "proceeding to add station %pM\n",
2528 sta_priv
->common
.sta_id
= IWL_INVALID_STATION
;
2530 atomic_set(&sta_priv
->pending_frames
, 0);
2531 if (vif
->type
== NL80211_IFTYPE_AP
)
2532 sta_priv
->client
= true;
2534 ret
= iwl_add_station_common(priv
, vif_priv
->ctx
, sta
->addr
,
2535 is_ap
, sta
, &sta_id
);
2537 IWL_ERR(priv
, "Unable to add station %pM (%d)\n",
2539 /* Should we return success if return code is EEXIST ? */
2540 mutex_unlock(&priv
->mutex
);
2544 sta_priv
->common
.sta_id
= sta_id
;
2546 /* Initialize rate scaling */
2547 IWL_DEBUG_INFO(priv
, "Initializing rate scaling for station %pM\n",
2549 iwl_rs_rate_init(priv
, sta
, sta_id
);
2550 mutex_unlock(&priv
->mutex
);
2555 static void iwlagn_mac_channel_switch(struct ieee80211_hw
*hw
,
2556 struct ieee80211_channel_switch
*ch_switch
)
2558 struct iwl_priv
*priv
= hw
->priv
;
2559 const struct iwl_channel_info
*ch_info
;
2560 struct ieee80211_conf
*conf
= &hw
->conf
;
2561 struct ieee80211_channel
*channel
= ch_switch
->channel
;
2562 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
2565 * When we add support for multiple interfaces, we need to
2566 * revisit this. The channel switch command in the device
2567 * only affects the BSS context, but what does that really
2568 * mean? And what if we get a CSA on the second interface?
2569 * This needs a lot of work.
2571 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2574 IWL_DEBUG_MAC80211(priv
, "enter\n");
2576 mutex_lock(&priv
->mutex
);
2578 if (iwl_is_rfkill(priv
))
2581 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
2582 test_bit(STATUS_SCANNING
, &priv
->status
) ||
2583 test_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
))
2586 if (!iwl_is_associated_ctx(ctx
))
2589 if (!priv
->cfg
->lib
->set_channel_switch
)
2592 ch
= channel
->hw_value
;
2593 if (le16_to_cpu(ctx
->active
.channel
) == ch
)
2596 ch_info
= iwl_get_channel_info(priv
, channel
->band
, ch
);
2597 if (!is_channel_valid(ch_info
)) {
2598 IWL_DEBUG_MAC80211(priv
, "invalid channel\n");
2602 spin_lock_irq(&priv
->lock
);
2604 priv
->current_ht_config
.smps
= conf
->smps_mode
;
2606 /* Configure HT40 channels */
2607 ctx
->ht
.enabled
= conf_is_ht(conf
);
2608 if (ctx
->ht
.enabled
) {
2609 if (conf_is_ht40_minus(conf
)) {
2610 ctx
->ht
.extension_chan_offset
=
2611 IEEE80211_HT_PARAM_CHA_SEC_BELOW
;
2612 ctx
->ht
.is_40mhz
= true;
2613 } else if (conf_is_ht40_plus(conf
)) {
2614 ctx
->ht
.extension_chan_offset
=
2615 IEEE80211_HT_PARAM_CHA_SEC_ABOVE
;
2616 ctx
->ht
.is_40mhz
= true;
2618 ctx
->ht
.extension_chan_offset
=
2619 IEEE80211_HT_PARAM_CHA_SEC_NONE
;
2620 ctx
->ht
.is_40mhz
= false;
2623 ctx
->ht
.is_40mhz
= false;
2625 if ((le16_to_cpu(ctx
->staging
.channel
) != ch
))
2626 ctx
->staging
.flags
= 0;
2628 iwl_set_rxon_channel(priv
, channel
, ctx
);
2629 iwl_set_rxon_ht(priv
, ht_conf
);
2630 iwl_set_flags_for_band(priv
, ctx
, channel
->band
, ctx
->vif
);
2632 spin_unlock_irq(&priv
->lock
);
2636 * at this point, staging_rxon has the
2637 * configuration for channel switch
2639 set_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
);
2640 priv
->switch_channel
= cpu_to_le16(ch
);
2641 if (priv
->cfg
->lib
->set_channel_switch(priv
, ch_switch
)) {
2642 clear_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
);
2643 priv
->switch_channel
= 0;
2644 ieee80211_chswitch_done(ctx
->vif
, false);
2648 mutex_unlock(&priv
->mutex
);
2649 IWL_DEBUG_MAC80211(priv
, "leave\n");
2652 static void iwlagn_configure_filter(struct ieee80211_hw
*hw
,
2653 unsigned int changed_flags
,
2654 unsigned int *total_flags
,
2657 struct iwl_priv
*priv
= hw
->priv
;
2658 __le32 filter_or
= 0, filter_nand
= 0;
2659 struct iwl_rxon_context
*ctx
;
2661 #define CHK(test, flag) do { \
2662 if (*total_flags & (test)) \
2663 filter_or |= (flag); \
2665 filter_nand |= (flag); \
2668 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
2669 changed_flags
, *total_flags
);
2671 CHK(FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
, RXON_FILTER_PROMISC_MSK
);
2672 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
2673 CHK(FIF_CONTROL
, RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_PROMISC_MSK
);
2674 CHK(FIF_BCN_PRBRESP_PROMISC
, RXON_FILTER_BCON_AWARE_MSK
);
2678 mutex_lock(&priv
->mutex
);
2680 for_each_context(priv
, ctx
) {
2681 ctx
->staging
.filter_flags
&= ~filter_nand
;
2682 ctx
->staging
.filter_flags
|= filter_or
;
2685 * Not committing directly because hardware can perform a scan,
2686 * but we'll eventually commit the filter flags change anyway.
2690 mutex_unlock(&priv
->mutex
);
2693 * Receiving all multicast frames is always enabled by the
2694 * default flags setup in iwl_connection_init_rx_config()
2695 * since we currently do not support programming multicast
2696 * filters into the device.
2698 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
2699 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
2702 static void iwlagn_mac_flush(struct ieee80211_hw
*hw
, bool drop
)
2704 struct iwl_priv
*priv
= hw
->priv
;
2706 mutex_lock(&priv
->mutex
);
2707 IWL_DEBUG_MAC80211(priv
, "enter\n");
2709 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
2710 IWL_DEBUG_TX(priv
, "Aborting flush due to device shutdown\n");
2713 if (iwl_is_rfkill(priv
)) {
2714 IWL_DEBUG_TX(priv
, "Aborting flush due to RF Kill\n");
2719 * mac80211 will not push any more frames for transmit
2720 * until the flush is completed
2723 IWL_DEBUG_MAC80211(priv
, "send flush command\n");
2724 if (iwlagn_txfifo_flush(priv
, IWL_DROP_ALL
)) {
2725 IWL_ERR(priv
, "flush request fail\n");
2729 IWL_DEBUG_MAC80211(priv
, "wait transmit/flush all frames\n");
2730 iwlagn_wait_tx_queue_empty(priv
);
2732 mutex_unlock(&priv
->mutex
);
2733 IWL_DEBUG_MAC80211(priv
, "leave\n");
2736 static void iwlagn_disable_roc(struct iwl_priv
*priv
)
2738 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
2739 struct ieee80211_channel
*chan
= ACCESS_ONCE(priv
->hw
->conf
.channel
);
2741 lockdep_assert_held(&priv
->mutex
);
2743 if (!ctx
->is_active
)
2746 ctx
->staging
.dev_type
= RXON_DEV_TYPE_2STA
;
2747 ctx
->staging
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2748 iwl_set_rxon_channel(priv
, chan
, ctx
);
2749 iwl_set_flags_for_band(priv
, ctx
, chan
->band
, NULL
);
2751 priv
->_agn
.hw_roc_channel
= NULL
;
2753 iwlagn_commit_rxon(priv
, ctx
);
2755 ctx
->is_active
= false;
2758 static void iwlagn_bg_roc_done(struct work_struct
*work
)
2760 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
2761 _agn
.hw_roc_work
.work
);
2763 mutex_lock(&priv
->mutex
);
2764 ieee80211_remain_on_channel_expired(priv
->hw
);
2765 iwlagn_disable_roc(priv
);
2766 mutex_unlock(&priv
->mutex
);
2769 static int iwl_mac_remain_on_channel(struct ieee80211_hw
*hw
,
2770 struct ieee80211_channel
*channel
,
2771 enum nl80211_channel_type channel_type
,
2774 struct iwl_priv
*priv
= hw
->priv
;
2777 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
2780 if (!(priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
&
2781 BIT(NL80211_IFTYPE_P2P_CLIENT
)))
2784 mutex_lock(&priv
->mutex
);
2786 if (priv
->contexts
[IWL_RXON_CTX_PAN
].is_active
||
2787 test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
2792 priv
->contexts
[IWL_RXON_CTX_PAN
].is_active
= true;
2793 priv
->_agn
.hw_roc_channel
= channel
;
2794 priv
->_agn
.hw_roc_chantype
= channel_type
;
2795 priv
->_agn
.hw_roc_duration
= DIV_ROUND_UP(duration
* 1000, 1024);
2796 iwlagn_commit_rxon(priv
, &priv
->contexts
[IWL_RXON_CTX_PAN
]);
2797 queue_delayed_work(priv
->workqueue
, &priv
->_agn
.hw_roc_work
,
2798 msecs_to_jiffies(duration
+ 20));
2800 msleep(IWL_MIN_SLOT_TIME
); /* TU is almost ms */
2801 ieee80211_ready_on_channel(priv
->hw
);
2804 mutex_unlock(&priv
->mutex
);
2809 static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw
*hw
)
2811 struct iwl_priv
*priv
= hw
->priv
;
2813 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
2816 cancel_delayed_work_sync(&priv
->_agn
.hw_roc_work
);
2818 mutex_lock(&priv
->mutex
);
2819 iwlagn_disable_roc(priv
);
2820 mutex_unlock(&priv
->mutex
);
2825 /*****************************************************************************
2827 * driver setup and teardown
2829 *****************************************************************************/
2831 static void iwl_setup_deferred_work(struct iwl_priv
*priv
)
2833 priv
->workqueue
= create_singlethread_workqueue(DRV_NAME
);
2835 init_waitqueue_head(&priv
->wait_command_queue
);
2837 INIT_WORK(&priv
->restart
, iwl_bg_restart
);
2838 INIT_WORK(&priv
->beacon_update
, iwl_bg_beacon_update
);
2839 INIT_WORK(&priv
->run_time_calib_work
, iwl_bg_run_time_calib_work
);
2840 INIT_WORK(&priv
->tx_flush
, iwl_bg_tx_flush
);
2841 INIT_WORK(&priv
->bt_full_concurrency
, iwl_bg_bt_full_concurrency
);
2842 INIT_WORK(&priv
->bt_runtime_config
, iwl_bg_bt_runtime_config
);
2843 INIT_DELAYED_WORK(&priv
->_agn
.hw_roc_work
, iwlagn_bg_roc_done
);
2845 iwl_setup_scan_deferred_work(priv
);
2847 if (priv
->cfg
->lib
->setup_deferred_work
)
2848 priv
->cfg
->lib
->setup_deferred_work(priv
);
2850 init_timer(&priv
->statistics_periodic
);
2851 priv
->statistics_periodic
.data
= (unsigned long)priv
;
2852 priv
->statistics_periodic
.function
= iwl_bg_statistics_periodic
;
2854 init_timer(&priv
->ucode_trace
);
2855 priv
->ucode_trace
.data
= (unsigned long)priv
;
2856 priv
->ucode_trace
.function
= iwl_bg_ucode_trace
;
2858 init_timer(&priv
->watchdog
);
2859 priv
->watchdog
.data
= (unsigned long)priv
;
2860 priv
->watchdog
.function
= iwl_bg_watchdog
;
2863 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
)
2865 if (priv
->cfg
->lib
->cancel_deferred_work
)
2866 priv
->cfg
->lib
->cancel_deferred_work(priv
);
2868 cancel_work_sync(&priv
->run_time_calib_work
);
2869 cancel_work_sync(&priv
->beacon_update
);
2871 iwl_cancel_scan_deferred_work(priv
);
2873 cancel_work_sync(&priv
->bt_full_concurrency
);
2874 cancel_work_sync(&priv
->bt_runtime_config
);
2876 del_timer_sync(&priv
->statistics_periodic
);
2877 del_timer_sync(&priv
->ucode_trace
);
2880 static void iwl_init_hw_rates(struct iwl_priv
*priv
,
2881 struct ieee80211_rate
*rates
)
2885 for (i
= 0; i
< IWL_RATE_COUNT_LEGACY
; i
++) {
2886 rates
[i
].bitrate
= iwl_rates
[i
].ieee
* 5;
2887 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
2888 rates
[i
].hw_value_short
= i
;
2890 if ((i
>= IWL_FIRST_CCK_RATE
) && (i
<= IWL_LAST_CCK_RATE
)) {
2892 * If CCK != 1M then set short preamble rate flag.
2895 (iwl_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
2896 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
2901 static int iwl_init_drv(struct iwl_priv
*priv
)
2905 spin_lock_init(&priv
->sta_lock
);
2906 spin_lock_init(&priv
->hcmd_lock
);
2908 mutex_init(&priv
->mutex
);
2910 priv
->ieee_channels
= NULL
;
2911 priv
->ieee_rates
= NULL
;
2912 priv
->band
= IEEE80211_BAND_2GHZ
;
2914 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
2915 priv
->current_ht_config
.smps
= IEEE80211_SMPS_STATIC
;
2916 priv
->missed_beacon_threshold
= IWL_MISSED_BEACON_THRESHOLD_DEF
;
2917 priv
->_agn
.agg_tids_count
= 0;
2919 /* initialize force reset */
2920 priv
->force_reset
[IWL_RF_RESET
].reset_duration
=
2921 IWL_DELAY_NEXT_FORCE_RF_RESET
;
2922 priv
->force_reset
[IWL_FW_RESET
].reset_duration
=
2923 IWL_DELAY_NEXT_FORCE_FW_RELOAD
;
2925 priv
->rx_statistics_jiffies
= jiffies
;
2927 /* Choose which receivers/antennas to use */
2928 iwlagn_set_rxon_chain(priv
, &priv
->contexts
[IWL_RXON_CTX_BSS
]);
2930 iwl_init_scan_params(priv
);
2933 if (priv
->cfg
->bt_params
&&
2934 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
2935 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
2936 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
2937 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
2938 priv
->bt_on_thresh
= BT_ON_THRESHOLD_DEF
;
2939 priv
->bt_duration
= BT_DURATION_LIMIT_DEF
;
2940 priv
->dynamic_frag_thresh
= BT_FRAG_THRESHOLD_DEF
;
2943 ret
= iwl_init_channel_map(priv
);
2945 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
2949 ret
= iwlcore_init_geos(priv
);
2951 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
2952 goto err_free_channel_map
;
2954 iwl_init_hw_rates(priv
, priv
->ieee_rates
);
2958 err_free_channel_map
:
2959 iwl_free_channel_map(priv
);
2964 static void iwl_uninit_drv(struct iwl_priv
*priv
)
2966 iwl_calib_free_results(priv
);
2967 iwlcore_free_geos(priv
);
2968 iwl_free_channel_map(priv
);
2969 kfree(priv
->scan_cmd
);
2970 kfree(priv
->beacon_cmd
);
2973 static void iwl_mac_rssi_callback(struct ieee80211_hw
*hw
,
2974 enum ieee80211_rssi_event rssi_event
)
2976 struct iwl_priv
*priv
= hw
->priv
;
2978 mutex_lock(&priv
->mutex
);
2980 if (priv
->cfg
->bt_params
&&
2981 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
2982 if (rssi_event
== RSSI_EVENT_LOW
)
2983 priv
->bt_enable_pspoll
= true;
2984 else if (rssi_event
== RSSI_EVENT_HIGH
)
2985 priv
->bt_enable_pspoll
= false;
2987 iwlagn_send_advance_bt_config(priv
);
2989 IWL_DEBUG_MAC80211(priv
, "Advanced BT coex disabled,"
2990 "ignoring RSSI callback\n");
2993 mutex_unlock(&priv
->mutex
);
2996 struct ieee80211_ops iwlagn_hw_ops
= {
2997 .tx
= iwlagn_mac_tx
,
2998 .start
= iwlagn_mac_start
,
2999 .stop
= iwlagn_mac_stop
,
3000 .add_interface
= iwl_mac_add_interface
,
3001 .remove_interface
= iwl_mac_remove_interface
,
3002 .change_interface
= iwl_mac_change_interface
,
3003 .config
= iwlagn_mac_config
,
3004 .configure_filter
= iwlagn_configure_filter
,
3005 .set_key
= iwlagn_mac_set_key
,
3006 .update_tkip_key
= iwlagn_mac_update_tkip_key
,
3007 .conf_tx
= iwl_mac_conf_tx
,
3008 .bss_info_changed
= iwlagn_bss_info_changed
,
3009 .ampdu_action
= iwlagn_mac_ampdu_action
,
3010 .hw_scan
= iwl_mac_hw_scan
,
3011 .sta_notify
= iwlagn_mac_sta_notify
,
3012 .sta_add
= iwlagn_mac_sta_add
,
3013 .sta_remove
= iwl_mac_sta_remove
,
3014 .channel_switch
= iwlagn_mac_channel_switch
,
3015 .flush
= iwlagn_mac_flush
,
3016 .tx_last_beacon
= iwl_mac_tx_last_beacon
,
3017 .remain_on_channel
= iwl_mac_remain_on_channel
,
3018 .cancel_remain_on_channel
= iwl_mac_cancel_remain_on_channel
,
3019 .offchannel_tx
= iwl_mac_offchannel_tx
,
3020 .offchannel_tx_cancel_wait
= iwl_mac_offchannel_tx_cancel_wait
,
3021 .rssi_callback
= iwl_mac_rssi_callback
,
3022 CFG80211_TESTMODE_CMD(iwl_testmode_cmd
)
3023 CFG80211_TESTMODE_DUMP(iwl_testmode_dump
)
3026 static u32
iwl_hw_detect(struct iwl_priv
*priv
)
3028 return iwl_read32(priv
, CSR_HW_REV
);
3031 static int iwl_set_hw_params(struct iwl_priv
*priv
)
3033 priv
->hw_params
.max_rxq_size
= RX_QUEUE_SIZE
;
3034 priv
->hw_params
.max_rxq_log
= RX_QUEUE_SIZE_LOG
;
3035 if (iwlagn_mod_params
.amsdu_size_8K
)
3036 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_8K
);
3038 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_4K
);
3040 priv
->hw_params
.max_beacon_itrvl
= IWL_MAX_UCODE_BEACON_INTERVAL
;
3042 if (iwlagn_mod_params
.disable_11n
)
3043 priv
->cfg
->sku
&= ~EEPROM_SKU_CAP_11N_ENABLE
;
3045 /* Device-specific setup */
3046 return priv
->cfg
->lib
->set_hw_params(priv
);
3049 static const u8 iwlagn_bss_ac_to_fifo
[] = {
3056 static const u8 iwlagn_bss_ac_to_queue
[] = {
3060 static const u8 iwlagn_pan_ac_to_fifo
[] = {
3061 IWL_TX_FIFO_VO_IPAN
,
3062 IWL_TX_FIFO_VI_IPAN
,
3063 IWL_TX_FIFO_BE_IPAN
,
3064 IWL_TX_FIFO_BK_IPAN
,
3067 static const u8 iwlagn_pan_ac_to_queue
[] = {
3071 /* This function both allocates and initializes hw and priv. */
3072 static struct ieee80211_hw
*iwl_alloc_all(struct iwl_cfg
*cfg
)
3074 struct iwl_priv
*priv
;
3075 /* mac80211 allocates memory for this device instance, including
3076 * space for this driver's private structure */
3077 struct ieee80211_hw
*hw
;
3079 hw
= ieee80211_alloc_hw(sizeof(struct iwl_priv
), &iwlagn_hw_ops
);
3081 pr_err("%s: Can not allocate network device\n",
3093 static void iwl_init_context(struct iwl_priv
*priv
)
3098 * The default context is always valid,
3099 * more may be discovered when firmware
3102 priv
->valid_contexts
= BIT(IWL_RXON_CTX_BSS
);
3104 for (i
= 0; i
< NUM_IWL_RXON_CTX
; i
++)
3105 priv
->contexts
[i
].ctxid
= i
;
3107 priv
->contexts
[IWL_RXON_CTX_BSS
].always_active
= true;
3108 priv
->contexts
[IWL_RXON_CTX_BSS
].is_active
= true;
3109 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_cmd
= REPLY_RXON
;
3110 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_timing_cmd
= REPLY_RXON_TIMING
;
3111 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_assoc_cmd
= REPLY_RXON_ASSOC
;
3112 priv
->contexts
[IWL_RXON_CTX_BSS
].qos_cmd
= REPLY_QOS_PARAM
;
3113 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_sta_id
= IWL_AP_ID
;
3114 priv
->contexts
[IWL_RXON_CTX_BSS
].wep_key_cmd
= REPLY_WEPKEY
;
3115 priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_fifo
= iwlagn_bss_ac_to_fifo
;
3116 priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_queue
= iwlagn_bss_ac_to_queue
;
3117 priv
->contexts
[IWL_RXON_CTX_BSS
].exclusive_interface_modes
=
3118 BIT(NL80211_IFTYPE_ADHOC
);
3119 priv
->contexts
[IWL_RXON_CTX_BSS
].interface_modes
=
3120 BIT(NL80211_IFTYPE_STATION
);
3121 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_devtype
= RXON_DEV_TYPE_AP
;
3122 priv
->contexts
[IWL_RXON_CTX_BSS
].ibss_devtype
= RXON_DEV_TYPE_IBSS
;
3123 priv
->contexts
[IWL_RXON_CTX_BSS
].station_devtype
= RXON_DEV_TYPE_ESS
;
3124 priv
->contexts
[IWL_RXON_CTX_BSS
].unused_devtype
= RXON_DEV_TYPE_ESS
;
3126 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_cmd
= REPLY_WIPAN_RXON
;
3127 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_timing_cmd
=
3128 REPLY_WIPAN_RXON_TIMING
;
3129 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_assoc_cmd
=
3130 REPLY_WIPAN_RXON_ASSOC
;
3131 priv
->contexts
[IWL_RXON_CTX_PAN
].qos_cmd
= REPLY_WIPAN_QOS_PARAM
;
3132 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_sta_id
= IWL_AP_ID_PAN
;
3133 priv
->contexts
[IWL_RXON_CTX_PAN
].wep_key_cmd
= REPLY_WIPAN_WEPKEY
;
3134 priv
->contexts
[IWL_RXON_CTX_PAN
].bcast_sta_id
= IWLAGN_PAN_BCAST_ID
;
3135 priv
->contexts
[IWL_RXON_CTX_PAN
].station_flags
= STA_FLG_PAN_STATION
;
3136 priv
->contexts
[IWL_RXON_CTX_PAN
].ac_to_fifo
= iwlagn_pan_ac_to_fifo
;
3137 priv
->contexts
[IWL_RXON_CTX_PAN
].ac_to_queue
= iwlagn_pan_ac_to_queue
;
3138 priv
->contexts
[IWL_RXON_CTX_PAN
].mcast_queue
= IWL_IPAN_MCAST_QUEUE
;
3139 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
=
3140 BIT(NL80211_IFTYPE_STATION
) | BIT(NL80211_IFTYPE_AP
);
3141 #ifdef CONFIG_IWL_P2P
3142 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
|=
3143 BIT(NL80211_IFTYPE_P2P_CLIENT
) | BIT(NL80211_IFTYPE_P2P_GO
);
3145 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_devtype
= RXON_DEV_TYPE_CP
;
3146 priv
->contexts
[IWL_RXON_CTX_PAN
].station_devtype
= RXON_DEV_TYPE_2STA
;
3147 priv
->contexts
[IWL_RXON_CTX_PAN
].unused_devtype
= RXON_DEV_TYPE_P2P
;
3149 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
3152 int iwl_probe(void *bus_specific
, struct iwl_bus_ops
*bus_ops
,
3153 struct iwl_cfg
*cfg
)
3156 struct iwl_priv
*priv
;
3157 struct ieee80211_hw
*hw
;
3161 /************************
3162 * 1. Allocating HW data
3163 ************************/
3164 hw
= iwl_alloc_all(cfg
);
3172 priv
->bus
.priv
= priv
;
3173 priv
->bus
.bus_specific
= bus_specific
;
3174 priv
->bus
.ops
= bus_ops
;
3175 priv
->bus
.irq
= priv
->bus
.ops
->get_irq(&priv
->bus
);
3176 priv
->bus
.ops
->set_drv_data(&priv
->bus
, priv
);
3177 priv
->bus
.dev
= priv
->bus
.ops
->get_dev(&priv
->bus
);
3179 /* At this point both hw and priv are allocated. */
3181 SET_IEEE80211_DEV(hw
, priv
->bus
.dev
);
3183 IWL_DEBUG_INFO(priv
, "*** LOAD DRIVER ***\n");
3185 priv
->inta_mask
= CSR_INI_SET_MASK
;
3187 err
= iwl_trans_register(priv
);
3191 /* is antenna coupling more than 35dB ? */
3192 priv
->bt_ant_couple_ok
=
3193 (iwlagn_ant_coupling
> IWL_BT_ANTENNA_COUPLING_THRESHOLD
) ?
3196 /* enable/disable bt channel inhibition */
3197 priv
->bt_ch_announce
= iwlagn_bt_ch_announce
;
3198 IWL_DEBUG_INFO(priv
, "BT channel inhibition is %s\n",
3199 (priv
->bt_ch_announce
) ? "On" : "Off");
3201 if (iwl_alloc_traffic_mem(priv
))
3202 IWL_ERR(priv
, "Not enough memory to generate traffic log\n");
3205 /* these spin locks will be used in apm_ops.init and EEPROM access
3206 * we should init now
3208 spin_lock_init(&priv
->reg_lock
);
3209 spin_lock_init(&priv
->lock
);
3212 * stop and reset the on-board processor just in case it is in a
3213 * strange state ... like being left stranded by a primary kernel
3214 * and this is now the kdump kernel trying to start up
3216 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
3218 /***********************
3219 * 3. Read REV register
3220 ***********************/
3221 hw_rev
= iwl_hw_detect(priv
);
3222 IWL_INFO(priv
, "Detected %s, REV=0x%X\n",
3223 priv
->cfg
->name
, hw_rev
);
3225 if (iwl_prepare_card_hw(priv
)) {
3227 IWL_WARN(priv
, "Failed, HW not ready\n");
3228 goto out_free_traffic_mem
;
3234 /* Read the EEPROM */
3235 err
= iwl_eeprom_init(priv
, hw_rev
);
3237 IWL_ERR(priv
, "Unable to init EEPROM\n");
3238 goto out_free_traffic_mem
;
3240 err
= iwl_eeprom_check_version(priv
);
3242 goto out_free_eeprom
;
3244 err
= iwl_eeprom_check_sku(priv
);
3246 goto out_free_eeprom
;
3248 /* extract MAC Address */
3249 iwl_eeprom_get_mac(priv
, priv
->addresses
[0].addr
);
3250 IWL_DEBUG_INFO(priv
, "MAC address: %pM\n", priv
->addresses
[0].addr
);
3251 priv
->hw
->wiphy
->addresses
= priv
->addresses
;
3252 priv
->hw
->wiphy
->n_addresses
= 1;
3253 num_mac
= iwl_eeprom_query16(priv
, EEPROM_NUM_MAC_ADDRESS
);
3255 memcpy(priv
->addresses
[1].addr
, priv
->addresses
[0].addr
,
3257 priv
->addresses
[1].addr
[5]++;
3258 priv
->hw
->wiphy
->n_addresses
++;
3261 /* initialize all valid contexts */
3262 iwl_init_context(priv
);
3264 /************************
3265 * 5. Setup HW constants
3266 ************************/
3267 if (iwl_set_hw_params(priv
)) {
3269 IWL_ERR(priv
, "failed to set hw parameters\n");
3270 goto out_free_eeprom
;
3273 /*******************
3275 *******************/
3277 err
= iwl_init_drv(priv
);
3279 goto out_free_eeprom
;
3280 /* At this point both hw and priv are initialized. */
3282 /********************
3284 ********************/
3285 iwl_setup_deferred_work(priv
);
3286 iwl_setup_rx_handlers(priv
);
3287 iwl_testmode_init(priv
);
3289 /*********************************************
3290 * 8. Enable interrupts
3291 *********************************************/
3293 iwl_enable_rfkill_int(priv
);
3295 /* If platform's RF_KILL switch is NOT set to KILL */
3296 if (iwl_read32(priv
, CSR_GP_CNTRL
) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
3297 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3299 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3301 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
3302 test_bit(STATUS_RF_KILL_HW
, &priv
->status
));
3304 iwl_power_initialize(priv
);
3305 iwl_tt_initialize(priv
);
3307 init_completion(&priv
->_agn
.firmware_loading_complete
);
3309 err
= iwl_request_firmware(priv
, true);
3311 goto out_destroy_workqueue
;
3315 out_destroy_workqueue
:
3316 destroy_workqueue(priv
->workqueue
);
3317 priv
->workqueue
= NULL
;
3318 iwl_uninit_drv(priv
);
3320 iwl_eeprom_free(priv
);
3321 out_free_traffic_mem
:
3322 iwl_free_traffic_mem(priv
);
3325 ieee80211_free_hw(priv
->hw
);
3330 void __devexit
iwl_remove(struct iwl_priv
* priv
)
3332 unsigned long flags
;
3334 wait_for_completion(&priv
->_agn
.firmware_loading_complete
);
3336 IWL_DEBUG_INFO(priv
, "*** UNLOAD DRIVER ***\n");
3338 iwl_dbgfs_unregister(priv
);
3339 sysfs_remove_group(&priv
->bus
.dev
->kobj
,
3340 &iwl_attribute_group
);
3342 /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
3343 * to be called and iwl_down since we are removing the device
3344 * we need to set STATUS_EXIT_PENDING bit.
3346 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3348 iwl_testmode_cleanup(priv
);
3349 iwl_leds_exit(priv
);
3351 if (priv
->mac80211_registered
) {
3352 ieee80211_unregister_hw(priv
->hw
);
3353 priv
->mac80211_registered
= 0;
3356 /* Reset to low power before unloading driver. */
3361 /* make sure we flush any pending irq or
3362 * tasklet for the driver
3364 spin_lock_irqsave(&priv
->lock
, flags
);
3365 iwl_disable_interrupts(priv
);
3366 spin_unlock_irqrestore(&priv
->lock
, flags
);
3368 trans_sync_irq(priv
);
3370 iwl_dealloc_ucode(priv
);
3372 trans_rx_free(priv
);
3373 trans_tx_free(priv
);
3375 iwl_eeprom_free(priv
);
3377 /*netif_stop_queue(dev); */
3378 flush_workqueue(priv
->workqueue
);
3380 /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
3381 * priv->workqueue... so we can't take down the workqueue
3383 destroy_workqueue(priv
->workqueue
);
3384 priv
->workqueue
= NULL
;
3385 iwl_free_traffic_mem(priv
);
3389 priv
->bus
.ops
->set_drv_data(&priv
->bus
, NULL
);
3391 iwl_uninit_drv(priv
);
3393 dev_kfree_skb(priv
->beacon_skb
);
3395 ieee80211_free_hw(priv
->hw
);
3399 /*****************************************************************************
3401 * driver and module entry point
3403 *****************************************************************************/
3404 static int __init
iwl_init(void)
3408 pr_info(DRV_DESCRIPTION
", " DRV_VERSION
"\n");
3409 pr_info(DRV_COPYRIGHT
"\n");
3411 ret
= iwlagn_rate_control_register();
3413 pr_err("Unable to register rate control algorithm: %d\n", ret
);
3417 ret
= iwl_pci_register_driver();
3420 goto error_register
;
3424 iwlagn_rate_control_unregister();
3428 static void __exit
iwl_exit(void)
3430 iwl_pci_unregister_driver();
3431 iwlagn_rate_control_unregister();
3434 module_exit(iwl_exit
);
3435 module_init(iwl_init
);
3437 #ifdef CONFIG_IWLWIFI_DEBUG
3438 module_param_named(debug
, iwl_debug_level
, uint
, S_IRUGO
| S_IWUSR
);
3439 MODULE_PARM_DESC(debug
, "debug output mask");
3442 module_param_named(swcrypto
, iwlagn_mod_params
.sw_crypto
, int, S_IRUGO
);
3443 MODULE_PARM_DESC(swcrypto
, "using crypto in software (default 0 [hardware])");
3444 module_param_named(queues_num
, iwlagn_mod_params
.num_of_queues
, int, S_IRUGO
);
3445 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
3446 module_param_named(11n_disable
, iwlagn_mod_params
.disable_11n
, int, S_IRUGO
);
3447 MODULE_PARM_DESC(11n_disable
, "disable 11n functionality");
3448 module_param_named(amsdu_size_8K
, iwlagn_mod_params
.amsdu_size_8K
,
3450 MODULE_PARM_DESC(amsdu_size_8K
, "enable 8K amsdu size");
3451 module_param_named(fw_restart
, iwlagn_mod_params
.restart_fw
, int, S_IRUGO
);
3452 MODULE_PARM_DESC(fw_restart
, "restart firmware in case of error");
3454 module_param_named(ucode_alternative
, iwlagn_wanted_ucode_alternative
, int,
3456 MODULE_PARM_DESC(ucode_alternative
,
3457 "specify ucode alternative to use from ucode file");
3459 module_param_named(antenna_coupling
, iwlagn_ant_coupling
, int, S_IRUGO
);
3460 MODULE_PARM_DESC(antenna_coupling
,
3461 "specify antenna coupling in dB (defualt: 0 dB)");
3463 module_param_named(bt_ch_inhibition
, iwlagn_bt_ch_announce
, bool, S_IRUGO
);
3464 MODULE_PARM_DESC(bt_ch_inhibition
,
3465 "Disable BT channel inhibition (default: enable)");
3467 module_param_named(plcp_check
, iwlagn_mod_params
.plcp_check
, bool, S_IRUGO
);
3468 MODULE_PARM_DESC(plcp_check
, "Check plcp health (default: 1 [enabled])");
3470 module_param_named(ack_check
, iwlagn_mod_params
.ack_check
, bool, S_IRUGO
);
3471 MODULE_PARM_DESC(ack_check
, "Check ack health (default: 0 [disabled])");
3473 module_param_named(wd_disable
, iwlagn_mod_params
.wd_disable
, bool, S_IRUGO
);
3474 MODULE_PARM_DESC(wd_disable
,
3475 "Disable stuck queue watchdog timer (default: 0 [enabled])");
3478 * set bt_coex_active to true, uCode will do kill/defer
3479 * every time the priority line is asserted (BT is sending signals on the
3480 * priority line in the PCIx).
3481 * set bt_coex_active to false, uCode will ignore the BT activity and
3482 * perform the normal operation
3484 * User might experience transmit issue on some platform due to WiFi/BT
3485 * co-exist problem. The possible behaviors are:
3486 * Able to scan and finding all the available AP
3487 * Not able to associate with any AP
3488 * On those platforms, WiFi communication can be restored by set
3489 * "bt_coex_active" module parameter to "false"
3491 * default: bt_coex_active = true (BT_COEX_ENABLE)
3493 module_param_named(bt_coex_active
, iwlagn_mod_params
.bt_coex_active
,
3495 MODULE_PARM_DESC(bt_coex_active
, "enable wifi/bt co-exist (default: enable)");
3497 module_param_named(led_mode
, iwlagn_mod_params
.led_mode
, int, S_IRUGO
);
3498 MODULE_PARM_DESC(led_mode
, "0=system default, "
3499 "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)");
3501 module_param_named(power_save
, iwlagn_mod_params
.power_save
,
3503 MODULE_PARM_DESC(power_save
,
3504 "enable WiFi power management (default: disable)");
3506 module_param_named(power_level
, iwlagn_mod_params
.power_level
,
3508 MODULE_PARM_DESC(power_level
,
3509 "default power save level (range from 1 - 5, default: 1)");
3512 * For now, keep using power level 1 instead of automatically
3515 module_param_named(no_sleep_autoadjust
, iwlagn_mod_params
.no_sleep_autoadjust
,
3517 MODULE_PARM_DESC(no_sleep_autoadjust
,
3518 "don't automatically adjust sleep level "
3519 "according to maximum network latency (default: true)");