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 /* TODO: remove include to PCI*.h when no PCI will be needed here */
36 #include <linux/pci.h>
37 #include <linux/pci-aspm.h>
38 #include <linux/slab.h>
39 #include <linux/dma-mapping.h>
40 #include <linux/delay.h>
41 #include <linux/sched.h>
42 #include <linux/skbuff.h>
43 #include <linux/netdevice.h>
44 #include <linux/wireless.h>
45 #include <linux/firmware.h>
46 #include <linux/etherdevice.h>
47 #include <linux/if_arp.h>
49 #include <net/mac80211.h>
51 #include <asm/div64.h>
53 #include "iwl-eeprom.h"
57 #include "iwl-helpers.h"
59 #include "iwl-agn-calib.h"
64 /******************************************************************************
68 ******************************************************************************/
71 * module name, copyright, version, etc.
73 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
75 #ifdef CONFIG_IWLWIFI_DEBUG
81 #define DRV_VERSION IWLWIFI_VERSION VD
84 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
85 MODULE_VERSION(DRV_VERSION
);
86 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
87 MODULE_LICENSE("GPL");
89 static int iwlagn_ant_coupling
;
90 static bool iwlagn_bt_ch_announce
= 1;
92 void iwl_update_chain_flags(struct iwl_priv
*priv
)
94 struct iwl_rxon_context
*ctx
;
96 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
) {
97 for_each_context(priv
, ctx
) {
98 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
, ctx
);
99 if (ctx
->active
.rx_chain
!= ctx
->staging
.rx_chain
)
100 iwlagn_commit_rxon(priv
, ctx
);
105 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
106 static void iwl_set_beacon_tim(struct iwl_priv
*priv
,
107 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
,
108 u8
*beacon
, u32 frame_size
)
111 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)beacon
;
114 * The index is relative to frame start but we start looking at the
115 * variable-length part of the beacon.
117 tim_idx
= mgmt
->u
.beacon
.variable
- beacon
;
119 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
120 while ((tim_idx
< (frame_size
- 2)) &&
121 (beacon
[tim_idx
] != WLAN_EID_TIM
))
122 tim_idx
+= beacon
[tim_idx
+1] + 2;
124 /* If TIM field was found, set variables */
125 if ((tim_idx
< (frame_size
- 1)) && (beacon
[tim_idx
] == WLAN_EID_TIM
)) {
126 tx_beacon_cmd
->tim_idx
= cpu_to_le16(tim_idx
);
127 tx_beacon_cmd
->tim_size
= beacon
[tim_idx
+1];
129 IWL_WARN(priv
, "Unable to find TIM Element in beacon\n");
132 int iwlagn_send_beacon_cmd(struct iwl_priv
*priv
)
134 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
;
135 struct iwl_host_cmd cmd
= {
136 .id
= REPLY_TX_BEACON
,
143 * We have to set up the TX command, the TX Beacon command, and the
147 lockdep_assert_held(&priv
->mutex
);
149 if (!priv
->beacon_ctx
) {
150 IWL_ERR(priv
, "trying to build beacon w/o beacon context!\n");
154 if (WARN_ON(!priv
->beacon_skb
))
157 /* Allocate beacon command */
158 if (!priv
->beacon_cmd
)
159 priv
->beacon_cmd
= kzalloc(sizeof(*tx_beacon_cmd
), GFP_KERNEL
);
160 tx_beacon_cmd
= priv
->beacon_cmd
;
164 frame_size
= priv
->beacon_skb
->len
;
166 /* Set up TX command fields */
167 tx_beacon_cmd
->tx
.len
= cpu_to_le16((u16
)frame_size
);
168 tx_beacon_cmd
->tx
.sta_id
= priv
->beacon_ctx
->bcast_sta_id
;
169 tx_beacon_cmd
->tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
170 tx_beacon_cmd
->tx
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
|
171 TX_CMD_FLG_TSF_MSK
| TX_CMD_FLG_STA_RATE_MSK
;
173 /* Set up TX beacon command fields */
174 iwl_set_beacon_tim(priv
, tx_beacon_cmd
, priv
->beacon_skb
->data
,
177 /* Set up packet rate and flags */
178 rate
= iwl_rate_get_lowest_plcp(priv
, priv
->beacon_ctx
);
179 priv
->mgmt_tx_ant
= iwl_toggle_tx_ant(priv
, priv
->mgmt_tx_ant
,
180 priv
->hw_params
.valid_tx_ant
);
181 rate_flags
= iwl_ant_idx_to_flags(priv
->mgmt_tx_ant
);
182 if ((rate
>= IWL_FIRST_CCK_RATE
) && (rate
<= IWL_LAST_CCK_RATE
))
183 rate_flags
|= RATE_MCS_CCK_MSK
;
184 tx_beacon_cmd
->tx
.rate_n_flags
= iwl_hw_set_rate_n_flags(rate
,
188 cmd
.len
[0] = sizeof(*tx_beacon_cmd
);
189 cmd
.data
[0] = tx_beacon_cmd
;
190 cmd
.dataflags
[0] = IWL_HCMD_DFL_NOCOPY
;
191 cmd
.len
[1] = frame_size
;
192 cmd
.data
[1] = priv
->beacon_skb
->data
;
193 cmd
.dataflags
[1] = IWL_HCMD_DFL_NOCOPY
;
195 return iwl_send_cmd_sync(priv
, &cmd
);
198 static void iwl_bg_beacon_update(struct work_struct
*work
)
200 struct iwl_priv
*priv
=
201 container_of(work
, struct iwl_priv
, beacon_update
);
202 struct sk_buff
*beacon
;
204 mutex_lock(&priv
->mutex
);
205 if (!priv
->beacon_ctx
) {
206 IWL_ERR(priv
, "updating beacon w/o beacon context!\n");
210 if (priv
->beacon_ctx
->vif
->type
!= NL80211_IFTYPE_AP
) {
212 * The ucode will send beacon notifications even in
213 * IBSS mode, but we don't want to process them. But
214 * we need to defer the type check to here due to
215 * requiring locking around the beacon_ctx access.
220 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
221 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->beacon_ctx
->vif
);
223 IWL_ERR(priv
, "update beacon failed -- keeping old\n");
227 /* new beacon skb is allocated every time; dispose previous.*/
228 dev_kfree_skb(priv
->beacon_skb
);
230 priv
->beacon_skb
= beacon
;
232 iwlagn_send_beacon_cmd(priv
);
234 mutex_unlock(&priv
->mutex
);
237 static void iwl_bg_bt_runtime_config(struct work_struct
*work
)
239 struct iwl_priv
*priv
=
240 container_of(work
, struct iwl_priv
, bt_runtime_config
);
242 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
245 /* dont send host command if rf-kill is on */
246 if (!iwl_is_ready_rf(priv
))
248 priv
->cfg
->ops
->hcmd
->send_bt_config(priv
);
251 static void iwl_bg_bt_full_concurrency(struct work_struct
*work
)
253 struct iwl_priv
*priv
=
254 container_of(work
, struct iwl_priv
, bt_full_concurrency
);
255 struct iwl_rxon_context
*ctx
;
257 mutex_lock(&priv
->mutex
);
259 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
262 /* dont send host command if rf-kill is on */
263 if (!iwl_is_ready_rf(priv
))
266 IWL_DEBUG_INFO(priv
, "BT coex in %s mode\n",
267 priv
->bt_full_concurrent
?
268 "full concurrency" : "3-wire");
271 * LQ & RXON updated cmds must be sent before BT Config cmd
272 * to avoid 3-wire collisions
274 for_each_context(priv
, ctx
) {
275 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
276 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
, ctx
);
277 iwlagn_commit_rxon(priv
, ctx
);
280 priv
->cfg
->ops
->hcmd
->send_bt_config(priv
);
282 mutex_unlock(&priv
->mutex
);
286 * iwl_bg_statistics_periodic - Timer callback to queue statistics
288 * This callback is provided in order to send a statistics request.
290 * This timer function is continually reset to execute within
291 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
292 * was received. We need to ensure we receive the statistics in order
293 * to update the temperature used for calibrating the TXPOWER.
295 static void iwl_bg_statistics_periodic(unsigned long data
)
297 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
299 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
302 /* dont send host command if rf-kill is on */
303 if (!iwl_is_ready_rf(priv
))
306 iwl_send_statistics_request(priv
, CMD_ASYNC
, false);
310 static void iwl_print_cont_event_trace(struct iwl_priv
*priv
, u32 base
,
311 u32 start_idx
, u32 num_events
,
315 u32 ptr
; /* SRAM byte address of log data */
316 u32 ev
, time
, data
; /* event log data */
317 unsigned long reg_flags
;
320 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 2 * sizeof(u32
));
322 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 3 * sizeof(u32
));
324 /* Make sure device is powered up for SRAM reads */
325 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
326 if (iwl_grab_nic_access(priv
)) {
327 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
331 /* Set starting address; reads will auto-increment */
332 iwl_write32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
336 * "time" is actually "data" for mode 0 (no timestamp).
337 * place event id # at far right for easier visual parsing.
339 for (i
= 0; i
< num_events
; i
++) {
340 ev
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
341 time
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
343 trace_iwlwifi_dev_ucode_cont_event(priv
,
346 data
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
347 trace_iwlwifi_dev_ucode_cont_event(priv
,
351 /* Allow device to power down */
352 iwl_release_nic_access(priv
);
353 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
356 static void iwl_continuous_event_trace(struct iwl_priv
*priv
)
358 u32 capacity
; /* event log capacity in # entries */
359 u32 base
; /* SRAM byte address of event log header */
360 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
361 u32 num_wraps
; /* # times uCode wrapped to top of log */
362 u32 next_entry
; /* index of next entry to be written by uCode */
364 base
= priv
->device_pointers
.error_event_table
;
365 if (priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
366 capacity
= iwl_read_targ_mem(priv
, base
);
367 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
368 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
369 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
373 if (num_wraps
== priv
->event_log
.num_wraps
) {
374 iwl_print_cont_event_trace(priv
,
375 base
, priv
->event_log
.next_entry
,
376 next_entry
- priv
->event_log
.next_entry
,
378 priv
->event_log
.non_wraps_count
++;
380 if ((num_wraps
- priv
->event_log
.num_wraps
) > 1)
381 priv
->event_log
.wraps_more_count
++;
383 priv
->event_log
.wraps_once_count
++;
384 trace_iwlwifi_dev_ucode_wrap_event(priv
,
385 num_wraps
- priv
->event_log
.num_wraps
,
386 next_entry
, priv
->event_log
.next_entry
);
387 if (next_entry
< priv
->event_log
.next_entry
) {
388 iwl_print_cont_event_trace(priv
, base
,
389 priv
->event_log
.next_entry
,
390 capacity
- priv
->event_log
.next_entry
,
393 iwl_print_cont_event_trace(priv
, base
, 0,
396 iwl_print_cont_event_trace(priv
, base
,
397 next_entry
, capacity
- next_entry
,
400 iwl_print_cont_event_trace(priv
, base
, 0,
404 priv
->event_log
.num_wraps
= num_wraps
;
405 priv
->event_log
.next_entry
= next_entry
;
409 * iwl_bg_ucode_trace - Timer callback to log ucode event
411 * The timer is continually set to execute every
412 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
413 * this function is to perform continuous uCode event logging operation
416 static void iwl_bg_ucode_trace(unsigned long data
)
418 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
420 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
423 if (priv
->event_log
.ucode_trace
) {
424 iwl_continuous_event_trace(priv
);
425 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
426 mod_timer(&priv
->ucode_trace
,
427 jiffies
+ msecs_to_jiffies(UCODE_TRACE_PERIOD
));
431 static void iwl_bg_tx_flush(struct work_struct
*work
)
433 struct iwl_priv
*priv
=
434 container_of(work
, struct iwl_priv
, tx_flush
);
436 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
439 /* do nothing if rf-kill is on */
440 if (!iwl_is_ready_rf(priv
))
443 IWL_DEBUG_INFO(priv
, "device request: flush all tx frames\n");
444 iwlagn_dev_txfifo_flush(priv
, IWL_DROP_ALL
);
448 * iwl_rx_handle - Main entry function for receiving responses from uCode
450 * Uses the priv->rx_handlers callback function array to invoke
451 * the appropriate handlers, including command responses,
452 * frame-received notifications, and other notifications.
454 static void iwl_rx_handle(struct iwl_priv
*priv
)
456 struct iwl_rx_mem_buffer
*rxb
;
457 struct iwl_rx_packet
*pkt
;
458 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
466 /* uCode's read index (stored in shared DRAM) indicates the last Rx
467 * buffer that the driver may process (last buffer filled by ucode). */
468 r
= le16_to_cpu(rxq
->rb_stts
->closed_rb_num
) & 0x0FFF;
471 /* Rx interrupt, but nothing sent from uCode */
473 IWL_DEBUG_RX(priv
, "r = %d, i = %d\n", r
, i
);
475 /* calculate total frames need to be restock after handling RX */
476 total_empty
= r
- rxq
->write_actual
;
478 total_empty
+= RX_QUEUE_SIZE
;
480 if (total_empty
> (RX_QUEUE_SIZE
/ 2))
488 /* If an RXB doesn't have a Rx queue slot associated with it,
489 * then a bug has been introduced in the queue refilling
490 * routines -- catch it here */
491 if (WARN_ON(rxb
== NULL
)) {
492 i
= (i
+ 1) & RX_QUEUE_MASK
;
496 rxq
->queue
[i
] = NULL
;
498 pci_unmap_page(priv
->pci_dev
, rxb
->page_dma
,
499 PAGE_SIZE
<< priv
->hw_params
.rx_page_order
,
503 len
= le32_to_cpu(pkt
->len_n_flags
) & FH_RSCSR_FRAME_SIZE_MSK
;
504 len
+= sizeof(u32
); /* account for status word */
505 trace_iwlwifi_dev_rx(priv
, pkt
, len
);
507 /* Reclaim a command buffer only if this packet is a response
508 * to a (driver-originated) command.
509 * If the packet (e.g. Rx frame) originated from uCode,
510 * there is no command buffer to reclaim.
511 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
512 * but apparently a few don't get set; catch them here. */
513 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
514 (pkt
->hdr
.cmd
!= REPLY_RX_PHY_CMD
) &&
515 (pkt
->hdr
.cmd
!= REPLY_RX
) &&
516 (pkt
->hdr
.cmd
!= REPLY_RX_MPDU_CMD
) &&
517 (pkt
->hdr
.cmd
!= REPLY_COMPRESSED_BA
) &&
518 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
519 (pkt
->hdr
.cmd
!= REPLY_TX
);
522 * Do the notification wait before RX handlers so
523 * even if the RX handler consumes the RXB we have
524 * access to it in the notification wait entry.
526 if (!list_empty(&priv
->_agn
.notif_waits
)) {
527 struct iwl_notification_wait
*w
;
529 spin_lock(&priv
->_agn
.notif_wait_lock
);
530 list_for_each_entry(w
, &priv
->_agn
.notif_waits
, list
) {
531 if (w
->cmd
== pkt
->hdr
.cmd
) {
534 w
->fn(priv
, pkt
, w
->fn_data
);
537 spin_unlock(&priv
->_agn
.notif_wait_lock
);
539 wake_up_all(&priv
->_agn
.notif_waitq
);
541 if (priv
->pre_rx_handler
)
542 priv
->pre_rx_handler(priv
, rxb
);
544 /* Based on type of command response or notification,
545 * handle those that need handling via function in
546 * rx_handlers table. See iwl_setup_rx_handlers() */
547 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
548 IWL_DEBUG_RX(priv
, "r = %d, i = %d, %s, 0x%02x\n", r
,
549 i
, get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
550 priv
->isr_stats
.rx_handlers
[pkt
->hdr
.cmd
]++;
551 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
553 /* No handling needed */
555 "r %d i %d No handler needed for %s, 0x%02x\n",
556 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
561 * XXX: After here, we should always check rxb->page
562 * against NULL before touching it or its virtual
563 * memory (pkt). Because some rx_handler might have
564 * already taken or freed the pages.
568 /* Invoke any callbacks, transfer the buffer to caller,
569 * and fire off the (possibly) blocking iwl_send_cmd()
570 * as we reclaim the driver command queue */
572 iwl_tx_cmd_complete(priv
, rxb
);
574 IWL_WARN(priv
, "Claim null rxb?\n");
577 /* Reuse the page if possible. For notification packets and
578 * SKBs that fail to Rx correctly, add them back into the
579 * rx_free list for reuse later. */
580 spin_lock_irqsave(&rxq
->lock
, flags
);
581 if (rxb
->page
!= NULL
) {
582 rxb
->page_dma
= pci_map_page(priv
->pci_dev
, rxb
->page
,
583 0, PAGE_SIZE
<< priv
->hw_params
.rx_page_order
,
585 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
588 list_add_tail(&rxb
->list
, &rxq
->rx_used
);
590 spin_unlock_irqrestore(&rxq
->lock
, flags
);
592 i
= (i
+ 1) & RX_QUEUE_MASK
;
593 /* If there are a lot of unused frames,
594 * restock the Rx queue so ucode wont assert. */
599 iwlagn_rx_replenish_now(priv
);
605 /* Backtrack one entry */
608 iwlagn_rx_replenish_now(priv
);
610 iwlagn_rx_queue_restock(priv
);
613 /* tasklet for iwlagn interrupt */
614 static void iwl_irq_tasklet(struct iwl_priv
*priv
)
620 #ifdef CONFIG_IWLWIFI_DEBUG
624 spin_lock_irqsave(&priv
->lock
, flags
);
626 /* Ack/clear/reset pending uCode interrupts.
627 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
629 /* There is a hardware bug in the interrupt mask function that some
630 * interrupts (i.e. CSR_INT_BIT_SCD) can still be generated even if
631 * they are disabled in the CSR_INT_MASK register. Furthermore the
632 * ICT interrupt handling mechanism has another bug that might cause
633 * these unmasked interrupts fail to be detected. We workaround the
634 * hardware bugs here by ACKing all the possible interrupts so that
635 * interrupt coalescing can still be achieved.
637 iwl_write32(priv
, CSR_INT
, priv
->_agn
.inta
| ~priv
->inta_mask
);
639 inta
= priv
->_agn
.inta
;
641 #ifdef CONFIG_IWLWIFI_DEBUG
642 if (iwl_get_debug_level(priv
) & IWL_DL_ISR
) {
644 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
645 IWL_DEBUG_ISR(priv
, "inta 0x%08x, enabled 0x%08x\n ",
650 spin_unlock_irqrestore(&priv
->lock
, flags
);
652 /* saved interrupt in inta variable now we can reset priv->_agn.inta */
655 /* Now service all interrupt bits discovered above. */
656 if (inta
& CSR_INT_BIT_HW_ERR
) {
657 IWL_ERR(priv
, "Hardware error detected. Restarting.\n");
659 /* Tell the device to stop sending interrupts */
660 iwl_disable_interrupts(priv
);
662 priv
->isr_stats
.hw
++;
663 iwl_irq_handle_error(priv
);
665 handled
|= CSR_INT_BIT_HW_ERR
;
670 #ifdef CONFIG_IWLWIFI_DEBUG
671 if (iwl_get_debug_level(priv
) & (IWL_DL_ISR
)) {
672 /* NIC fires this, but we don't use it, redundant with WAKEUP */
673 if (inta
& CSR_INT_BIT_SCD
) {
674 IWL_DEBUG_ISR(priv
, "Scheduler finished to transmit "
675 "the frame/frames.\n");
676 priv
->isr_stats
.sch
++;
679 /* Alive notification via Rx interrupt will do the real work */
680 if (inta
& CSR_INT_BIT_ALIVE
) {
681 IWL_DEBUG_ISR(priv
, "Alive interrupt\n");
682 priv
->isr_stats
.alive
++;
686 /* Safely ignore these bits for debug checks below */
687 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
689 /* HW RF KILL switch toggled */
690 if (inta
& CSR_INT_BIT_RF_KILL
) {
692 if (!(iwl_read32(priv
, CSR_GP_CNTRL
) &
693 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
696 IWL_WARN(priv
, "RF_KILL bit toggled to %s.\n",
697 hw_rf_kill
? "disable radio" : "enable radio");
699 priv
->isr_stats
.rfkill
++;
701 /* driver only loads ucode once setting the interface up.
702 * the driver allows loading the ucode even if the radio
703 * is killed. Hence update the killswitch state here. The
704 * rfkill handler will care about restarting if needed.
706 if (!test_bit(STATUS_ALIVE
, &priv
->status
)) {
708 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
710 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
711 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
, hw_rf_kill
);
714 handled
|= CSR_INT_BIT_RF_KILL
;
717 /* Chip got too hot and stopped itself */
718 if (inta
& CSR_INT_BIT_CT_KILL
) {
719 IWL_ERR(priv
, "Microcode CT kill error detected.\n");
720 priv
->isr_stats
.ctkill
++;
721 handled
|= CSR_INT_BIT_CT_KILL
;
724 /* Error detected by uCode */
725 if (inta
& CSR_INT_BIT_SW_ERR
) {
726 IWL_ERR(priv
, "Microcode SW error detected. "
727 " Restarting 0x%X.\n", inta
);
728 priv
->isr_stats
.sw
++;
729 iwl_irq_handle_error(priv
);
730 handled
|= CSR_INT_BIT_SW_ERR
;
733 /* uCode wakes up after power-down sleep */
734 if (inta
& CSR_INT_BIT_WAKEUP
) {
735 IWL_DEBUG_ISR(priv
, "Wakeup interrupt\n");
736 iwl_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
737 for (i
= 0; i
< priv
->hw_params
.max_txq_num
; i
++)
738 iwl_txq_update_write_ptr(priv
, &priv
->txq
[i
]);
740 priv
->isr_stats
.wakeup
++;
742 handled
|= CSR_INT_BIT_WAKEUP
;
745 /* All uCode command responses, including Tx command responses,
746 * Rx "responses" (frame-received notification), and other
747 * notifications from uCode come through here*/
748 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
|
749 CSR_INT_BIT_RX_PERIODIC
)) {
750 IWL_DEBUG_ISR(priv
, "Rx interrupt\n");
751 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
752 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
753 iwl_write32(priv
, CSR_FH_INT_STATUS
,
756 if (inta
& CSR_INT_BIT_RX_PERIODIC
) {
757 handled
|= CSR_INT_BIT_RX_PERIODIC
;
758 iwl_write32(priv
, CSR_INT
, CSR_INT_BIT_RX_PERIODIC
);
760 /* Sending RX interrupt require many steps to be done in the
762 * 1- write interrupt to current index in ICT table.
764 * 3- update RX shared data to indicate last write index.
766 * This could lead to RX race, driver could receive RX interrupt
767 * but the shared data changes does not reflect this;
768 * periodic interrupt will detect any dangling Rx activity.
771 /* Disable periodic interrupt; we use it as just a one-shot. */
772 iwl_write8(priv
, CSR_INT_PERIODIC_REG
,
773 CSR_INT_PERIODIC_DIS
);
777 * Enable periodic interrupt in 8 msec only if we received
778 * real RX interrupt (instead of just periodic int), to catch
779 * any dangling Rx interrupt. If it was just the periodic
780 * interrupt, there was no dangling Rx activity, and no need
781 * to extend the periodic interrupt; one-shot is enough.
783 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
))
784 iwl_write8(priv
, CSR_INT_PERIODIC_REG
,
785 CSR_INT_PERIODIC_ENA
);
787 priv
->isr_stats
.rx
++;
790 /* This "Tx" DMA channel is used only for loading uCode */
791 if (inta
& CSR_INT_BIT_FH_TX
) {
792 iwl_write32(priv
, CSR_FH_INT_STATUS
, CSR_FH_INT_TX_MASK
);
793 IWL_DEBUG_ISR(priv
, "uCode load interrupt\n");
794 priv
->isr_stats
.tx
++;
795 handled
|= CSR_INT_BIT_FH_TX
;
796 /* Wake up uCode load routine, now that load is complete */
797 priv
->ucode_write_complete
= 1;
798 wake_up_interruptible(&priv
->wait_command_queue
);
801 if (inta
& ~handled
) {
802 IWL_ERR(priv
, "Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
803 priv
->isr_stats
.unhandled
++;
806 if (inta
& ~(priv
->inta_mask
)) {
807 IWL_WARN(priv
, "Disabled INTA bits 0x%08x were pending\n",
808 inta
& ~priv
->inta_mask
);
811 /* Re-enable all interrupts */
812 /* only Re-enable if disabled by irq */
813 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
814 iwl_enable_interrupts(priv
);
815 /* Re-enable RF_KILL if it occurred */
816 else if (handled
& CSR_INT_BIT_RF_KILL
)
817 iwl_enable_rfkill_int(priv
);
820 /*****************************************************************************
824 *****************************************************************************/
826 #ifdef CONFIG_IWLWIFI_DEBUG
829 * The following adds a new attribute to the sysfs representation
830 * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
831 * used for controlling the debug level.
833 * See the level definitions in iwl for details.
835 * The debug_level being managed using sysfs below is a per device debug
836 * level that is used instead of the global debug level if it (the per
837 * device debug level) is set.
839 static ssize_t
show_debug_level(struct device
*d
,
840 struct device_attribute
*attr
, char *buf
)
842 struct iwl_priv
*priv
= dev_get_drvdata(d
);
843 return sprintf(buf
, "0x%08X\n", iwl_get_debug_level(priv
));
845 static ssize_t
store_debug_level(struct device
*d
,
846 struct device_attribute
*attr
,
847 const char *buf
, size_t count
)
849 struct iwl_priv
*priv
= dev_get_drvdata(d
);
853 ret
= strict_strtoul(buf
, 0, &val
);
855 IWL_ERR(priv
, "%s is not in hex or decimal form.\n", buf
);
857 priv
->debug_level
= val
;
858 if (iwl_alloc_traffic_mem(priv
))
860 "Not enough memory to generate traffic log\n");
862 return strnlen(buf
, count
);
865 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
866 show_debug_level
, store_debug_level
);
869 #endif /* CONFIG_IWLWIFI_DEBUG */
872 static ssize_t
show_temperature(struct device
*d
,
873 struct device_attribute
*attr
, char *buf
)
875 struct iwl_priv
*priv
= dev_get_drvdata(d
);
877 if (!iwl_is_alive(priv
))
880 return sprintf(buf
, "%d\n", priv
->temperature
);
883 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
885 static ssize_t
show_tx_power(struct device
*d
,
886 struct device_attribute
*attr
, char *buf
)
888 struct iwl_priv
*priv
= dev_get_drvdata(d
);
890 if (!iwl_is_ready_rf(priv
))
891 return sprintf(buf
, "off\n");
893 return sprintf(buf
, "%d\n", priv
->tx_power_user_lmt
);
896 static ssize_t
store_tx_power(struct device
*d
,
897 struct device_attribute
*attr
,
898 const char *buf
, size_t count
)
900 struct iwl_priv
*priv
= dev_get_drvdata(d
);
904 ret
= strict_strtoul(buf
, 10, &val
);
906 IWL_INFO(priv
, "%s is not in decimal form.\n", buf
);
908 ret
= iwl_set_tx_power(priv
, val
, false);
910 IWL_ERR(priv
, "failed setting tx power (0x%d).\n",
918 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
920 static struct attribute
*iwl_sysfs_entries
[] = {
921 &dev_attr_temperature
.attr
,
922 &dev_attr_tx_power
.attr
,
923 #ifdef CONFIG_IWLWIFI_DEBUG
924 &dev_attr_debug_level
.attr
,
929 static struct attribute_group iwl_attribute_group
= {
930 .name
= NULL
, /* put in device directory */
931 .attrs
= iwl_sysfs_entries
,
934 /******************************************************************************
936 * uCode download functions
938 ******************************************************************************/
940 static void iwl_free_fw_desc(struct pci_dev
*pci_dev
, struct fw_desc
*desc
)
943 dma_free_coherent(&pci_dev
->dev
, desc
->len
,
944 desc
->v_addr
, desc
->p_addr
);
949 static void iwl_free_fw_img(struct pci_dev
*pci_dev
, struct fw_img
*img
)
951 iwl_free_fw_desc(pci_dev
, &img
->code
);
952 iwl_free_fw_desc(pci_dev
, &img
->data
);
955 static int iwl_alloc_fw_desc(struct pci_dev
*pci_dev
, struct fw_desc
*desc
,
956 const void *data
, size_t len
)
963 desc
->v_addr
= dma_alloc_coherent(&pci_dev
->dev
, len
,
964 &desc
->p_addr
, GFP_KERNEL
);
968 memcpy(desc
->v_addr
, data
, len
);
972 static void iwl_dealloc_ucode_pci(struct iwl_priv
*priv
)
974 iwl_free_fw_img(priv
->pci_dev
, &priv
->ucode_rt
);
975 iwl_free_fw_img(priv
->pci_dev
, &priv
->ucode_init
);
978 struct iwlagn_ucode_capabilities
{
979 u32 max_probe_length
;
980 u32 standard_phy_calibration_size
;
984 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
);
985 static int iwl_mac_setup_register(struct iwl_priv
*priv
,
986 struct iwlagn_ucode_capabilities
*capa
);
988 #define UCODE_EXPERIMENTAL_INDEX 100
989 #define UCODE_EXPERIMENTAL_TAG "exp"
991 static int __must_check
iwl_request_firmware(struct iwl_priv
*priv
, bool first
)
993 const char *name_pre
= priv
->cfg
->fw_name_pre
;
997 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
998 priv
->fw_index
= UCODE_EXPERIMENTAL_INDEX
;
999 strcpy(tag
, UCODE_EXPERIMENTAL_TAG
);
1000 } else if (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
) {
1002 priv
->fw_index
= priv
->cfg
->ucode_api_max
;
1003 sprintf(tag
, "%d", priv
->fw_index
);
1006 sprintf(tag
, "%d", priv
->fw_index
);
1009 if (priv
->fw_index
< priv
->cfg
->ucode_api_min
) {
1010 IWL_ERR(priv
, "no suitable firmware found!\n");
1014 sprintf(priv
->firmware_name
, "%s%s%s", name_pre
, tag
, ".ucode");
1016 IWL_DEBUG_INFO(priv
, "attempting to load firmware %s'%s'\n",
1017 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
1018 ? "EXPERIMENTAL " : "",
1019 priv
->firmware_name
);
1021 return request_firmware_nowait(THIS_MODULE
, 1, priv
->firmware_name
,
1022 &priv
->pci_dev
->dev
, GFP_KERNEL
, priv
,
1023 iwl_ucode_callback
);
1026 struct iwlagn_firmware_pieces
{
1027 const void *inst
, *data
, *init
, *init_data
;
1028 size_t inst_size
, data_size
, init_size
, init_data_size
;
1032 u32 init_evtlog_ptr
, init_evtlog_size
, init_errlog_ptr
;
1033 u32 inst_evtlog_ptr
, inst_evtlog_size
, inst_errlog_ptr
;
1036 static int iwlagn_load_legacy_firmware(struct iwl_priv
*priv
,
1037 const struct firmware
*ucode_raw
,
1038 struct iwlagn_firmware_pieces
*pieces
)
1040 struct iwl_ucode_header
*ucode
= (void *)ucode_raw
->data
;
1041 u32 api_ver
, hdr_size
;
1044 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
1045 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
1050 if (ucode_raw
->size
< hdr_size
) {
1051 IWL_ERR(priv
, "File size too small!\n");
1054 pieces
->build
= le32_to_cpu(ucode
->u
.v2
.build
);
1055 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v2
.inst_size
);
1056 pieces
->data_size
= le32_to_cpu(ucode
->u
.v2
.data_size
);
1057 pieces
->init_size
= le32_to_cpu(ucode
->u
.v2
.init_size
);
1058 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v2
.init_data_size
);
1059 src
= ucode
->u
.v2
.data
;
1065 if (ucode_raw
->size
< hdr_size
) {
1066 IWL_ERR(priv
, "File size too small!\n");
1070 pieces
->inst_size
= le32_to_cpu(ucode
->u
.v1
.inst_size
);
1071 pieces
->data_size
= le32_to_cpu(ucode
->u
.v1
.data_size
);
1072 pieces
->init_size
= le32_to_cpu(ucode
->u
.v1
.init_size
);
1073 pieces
->init_data_size
= le32_to_cpu(ucode
->u
.v1
.init_data_size
);
1074 src
= ucode
->u
.v1
.data
;
1078 /* Verify size of file vs. image size info in file's header */
1079 if (ucode_raw
->size
!= hdr_size
+ pieces
->inst_size
+
1080 pieces
->data_size
+ pieces
->init_size
+
1081 pieces
->init_data_size
) {
1084 "uCode file size %d does not match expected size\n",
1085 (int)ucode_raw
->size
);
1090 src
+= pieces
->inst_size
;
1092 src
+= pieces
->data_size
;
1094 src
+= pieces
->init_size
;
1095 pieces
->init_data
= src
;
1096 src
+= pieces
->init_data_size
;
1101 static int iwlagn_wanted_ucode_alternative
= 1;
1103 static int iwlagn_load_firmware(struct iwl_priv
*priv
,
1104 const struct firmware
*ucode_raw
,
1105 struct iwlagn_firmware_pieces
*pieces
,
1106 struct iwlagn_ucode_capabilities
*capa
)
1108 struct iwl_tlv_ucode_header
*ucode
= (void *)ucode_raw
->data
;
1109 struct iwl_ucode_tlv
*tlv
;
1110 size_t len
= ucode_raw
->size
;
1112 int wanted_alternative
= iwlagn_wanted_ucode_alternative
, tmp
;
1115 enum iwl_ucode_tlv_type tlv_type
;
1118 if (len
< sizeof(*ucode
)) {
1119 IWL_ERR(priv
, "uCode has invalid length: %zd\n", len
);
1123 if (ucode
->magic
!= cpu_to_le32(IWL_TLV_UCODE_MAGIC
)) {
1124 IWL_ERR(priv
, "invalid uCode magic: 0X%x\n",
1125 le32_to_cpu(ucode
->magic
));
1130 * Check which alternatives are present, and "downgrade"
1131 * when the chosen alternative is not present, warning
1132 * the user when that happens. Some files may not have
1133 * any alternatives, so don't warn in that case.
1135 alternatives
= le64_to_cpu(ucode
->alternatives
);
1136 tmp
= wanted_alternative
;
1137 if (wanted_alternative
> 63)
1138 wanted_alternative
= 63;
1139 while (wanted_alternative
&& !(alternatives
& BIT(wanted_alternative
)))
1140 wanted_alternative
--;
1141 if (wanted_alternative
&& wanted_alternative
!= tmp
)
1143 "uCode alternative %d not available, choosing %d\n",
1144 tmp
, wanted_alternative
);
1146 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
1147 pieces
->build
= le32_to_cpu(ucode
->build
);
1150 len
-= sizeof(*ucode
);
1152 while (len
>= sizeof(*tlv
)) {
1155 len
-= sizeof(*tlv
);
1158 tlv_len
= le32_to_cpu(tlv
->length
);
1159 tlv_type
= le16_to_cpu(tlv
->type
);
1160 tlv_alt
= le16_to_cpu(tlv
->alternative
);
1161 tlv_data
= tlv
->data
;
1163 if (len
< tlv_len
) {
1164 IWL_ERR(priv
, "invalid TLV len: %zd/%u\n",
1168 len
-= ALIGN(tlv_len
, 4);
1169 data
+= sizeof(*tlv
) + ALIGN(tlv_len
, 4);
1172 * Alternative 0 is always valid.
1174 * Skip alternative TLVs that are not selected.
1176 if (tlv_alt
!= 0 && tlv_alt
!= wanted_alternative
)
1180 case IWL_UCODE_TLV_INST
:
1181 pieces
->inst
= tlv_data
;
1182 pieces
->inst_size
= tlv_len
;
1184 case IWL_UCODE_TLV_DATA
:
1185 pieces
->data
= tlv_data
;
1186 pieces
->data_size
= tlv_len
;
1188 case IWL_UCODE_TLV_INIT
:
1189 pieces
->init
= tlv_data
;
1190 pieces
->init_size
= tlv_len
;
1192 case IWL_UCODE_TLV_INIT_DATA
:
1193 pieces
->init_data
= tlv_data
;
1194 pieces
->init_data_size
= tlv_len
;
1196 case IWL_UCODE_TLV_BOOT
:
1197 IWL_ERR(priv
, "Found unexpected BOOT ucode\n");
1199 case IWL_UCODE_TLV_PROBE_MAX_LEN
:
1200 if (tlv_len
!= sizeof(u32
))
1201 goto invalid_tlv_len
;
1202 capa
->max_probe_length
=
1203 le32_to_cpup((__le32
*)tlv_data
);
1205 case IWL_UCODE_TLV_PAN
:
1207 goto invalid_tlv_len
;
1208 capa
->flags
|= IWL_UCODE_TLV_FLAGS_PAN
;
1210 case IWL_UCODE_TLV_FLAGS
:
1211 /* must be at least one u32 */
1212 if (tlv_len
< sizeof(u32
))
1213 goto invalid_tlv_len
;
1214 /* and a proper number of u32s */
1215 if (tlv_len
% sizeof(u32
))
1216 goto invalid_tlv_len
;
1218 * This driver only reads the first u32 as
1219 * right now no more features are defined,
1220 * if that changes then either the driver
1221 * will not work with the new firmware, or
1222 * it'll not take advantage of new features.
1224 capa
->flags
= le32_to_cpup((__le32
*)tlv_data
);
1226 case IWL_UCODE_TLV_INIT_EVTLOG_PTR
:
1227 if (tlv_len
!= sizeof(u32
))
1228 goto invalid_tlv_len
;
1229 pieces
->init_evtlog_ptr
=
1230 le32_to_cpup((__le32
*)tlv_data
);
1232 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE
:
1233 if (tlv_len
!= sizeof(u32
))
1234 goto invalid_tlv_len
;
1235 pieces
->init_evtlog_size
=
1236 le32_to_cpup((__le32
*)tlv_data
);
1238 case IWL_UCODE_TLV_INIT_ERRLOG_PTR
:
1239 if (tlv_len
!= sizeof(u32
))
1240 goto invalid_tlv_len
;
1241 pieces
->init_errlog_ptr
=
1242 le32_to_cpup((__le32
*)tlv_data
);
1244 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR
:
1245 if (tlv_len
!= sizeof(u32
))
1246 goto invalid_tlv_len
;
1247 pieces
->inst_evtlog_ptr
=
1248 le32_to_cpup((__le32
*)tlv_data
);
1250 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE
:
1251 if (tlv_len
!= sizeof(u32
))
1252 goto invalid_tlv_len
;
1253 pieces
->inst_evtlog_size
=
1254 le32_to_cpup((__le32
*)tlv_data
);
1256 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR
:
1257 if (tlv_len
!= sizeof(u32
))
1258 goto invalid_tlv_len
;
1259 pieces
->inst_errlog_ptr
=
1260 le32_to_cpup((__le32
*)tlv_data
);
1262 case IWL_UCODE_TLV_ENHANCE_SENS_TBL
:
1264 goto invalid_tlv_len
;
1265 priv
->enhance_sensitivity_table
= true;
1267 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE
:
1268 if (tlv_len
!= sizeof(u32
))
1269 goto invalid_tlv_len
;
1270 capa
->standard_phy_calibration_size
=
1271 le32_to_cpup((__le32
*)tlv_data
);
1274 IWL_DEBUG_INFO(priv
, "unknown TLV: %d\n", tlv_type
);
1280 IWL_ERR(priv
, "invalid TLV after parsing: %zd\n", len
);
1281 iwl_print_hex_dump(priv
, IWL_DL_FW
, (u8
*)data
, len
);
1288 IWL_ERR(priv
, "TLV %d has invalid size: %u\n", tlv_type
, tlv_len
);
1289 iwl_print_hex_dump(priv
, IWL_DL_FW
, tlv_data
, tlv_len
);
1295 * iwl_ucode_callback - callback when firmware was loaded
1297 * If loaded successfully, copies the firmware into buffers
1298 * for the card to fetch (via DMA).
1300 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
)
1302 struct iwl_priv
*priv
= context
;
1303 struct iwl_ucode_header
*ucode
;
1305 struct iwlagn_firmware_pieces pieces
;
1306 const unsigned int api_max
= priv
->cfg
->ucode_api_max
;
1307 const unsigned int api_min
= priv
->cfg
->ucode_api_min
;
1311 struct iwlagn_ucode_capabilities ucode_capa
= {
1312 .max_probe_length
= 200,
1313 .standard_phy_calibration_size
=
1314 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE
,
1317 memset(&pieces
, 0, sizeof(pieces
));
1320 if (priv
->fw_index
<= priv
->cfg
->ucode_api_max
)
1322 "request for firmware file '%s' failed.\n",
1323 priv
->firmware_name
);
1327 IWL_DEBUG_INFO(priv
, "Loaded firmware file '%s' (%zd bytes).\n",
1328 priv
->firmware_name
, ucode_raw
->size
);
1330 /* Make sure that we got at least the API version number */
1331 if (ucode_raw
->size
< 4) {
1332 IWL_ERR(priv
, "File size way too small!\n");
1336 /* Data from ucode file: header followed by uCode images */
1337 ucode
= (struct iwl_ucode_header
*)ucode_raw
->data
;
1340 err
= iwlagn_load_legacy_firmware(priv
, ucode_raw
, &pieces
);
1342 err
= iwlagn_load_firmware(priv
, ucode_raw
, &pieces
,
1348 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
1349 build
= pieces
.build
;
1352 * api_ver should match the api version forming part of the
1353 * firmware filename ... but we don't check for that and only rely
1354 * on the API version read from firmware header from here on forward
1356 /* no api version check required for experimental uCode */
1357 if (priv
->fw_index
!= UCODE_EXPERIMENTAL_INDEX
) {
1358 if (api_ver
< api_min
|| api_ver
> api_max
) {
1360 "Driver unable to support your firmware API. "
1361 "Driver supports v%u, firmware is v%u.\n",
1366 if (api_ver
!= api_max
)
1368 "Firmware has old API version. Expected v%u, "
1369 "got v%u. New firmware can be obtained "
1370 "from http://www.intellinuxwireless.org.\n",
1375 sprintf(buildstr
, " build %u%s", build
,
1376 (priv
->fw_index
== UCODE_EXPERIMENTAL_INDEX
)
1381 IWL_INFO(priv
, "loaded firmware version %u.%u.%u.%u%s\n",
1382 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1383 IWL_UCODE_MINOR(priv
->ucode_ver
),
1384 IWL_UCODE_API(priv
->ucode_ver
),
1385 IWL_UCODE_SERIAL(priv
->ucode_ver
),
1388 snprintf(priv
->hw
->wiphy
->fw_version
,
1389 sizeof(priv
->hw
->wiphy
->fw_version
),
1391 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1392 IWL_UCODE_MINOR(priv
->ucode_ver
),
1393 IWL_UCODE_API(priv
->ucode_ver
),
1394 IWL_UCODE_SERIAL(priv
->ucode_ver
),
1398 * For any of the failures below (before allocating pci memory)
1399 * we will try to load a version with a smaller API -- maybe the
1400 * user just got a corrupted version of the latest API.
1403 IWL_DEBUG_INFO(priv
, "f/w package hdr ucode version raw = 0x%x\n",
1405 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime inst size = %Zd\n",
1407 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime data size = %Zd\n",
1409 IWL_DEBUG_INFO(priv
, "f/w package hdr init inst size = %Zd\n",
1411 IWL_DEBUG_INFO(priv
, "f/w package hdr init data size = %Zd\n",
1412 pieces
.init_data_size
);
1414 /* Verify that uCode images will fit in card's SRAM */
1415 if (pieces
.inst_size
> priv
->hw_params
.max_inst_size
) {
1416 IWL_ERR(priv
, "uCode instr len %Zd too large to fit in\n",
1421 if (pieces
.data_size
> priv
->hw_params
.max_data_size
) {
1422 IWL_ERR(priv
, "uCode data len %Zd too large to fit in\n",
1427 if (pieces
.init_size
> priv
->hw_params
.max_inst_size
) {
1428 IWL_ERR(priv
, "uCode init instr len %Zd too large to fit in\n",
1433 if (pieces
.init_data_size
> priv
->hw_params
.max_data_size
) {
1434 IWL_ERR(priv
, "uCode init data len %Zd too large to fit in\n",
1435 pieces
.init_data_size
);
1439 /* Allocate ucode buffers for card's bus-master loading ... */
1441 /* Runtime instructions and 2 copies of data:
1442 * 1) unmodified from disk
1443 * 2) backup cache for save/restore during power-downs */
1444 if (iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_rt
.code
,
1445 pieces
.inst
, pieces
.inst_size
))
1447 if (iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_rt
.data
,
1448 pieces
.data
, pieces
.data_size
))
1451 /* Initialization instructions and data */
1452 if (pieces
.init_size
&& pieces
.init_data_size
) {
1453 if (iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
.code
,
1454 pieces
.init
, pieces
.init_size
))
1456 if (iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
.data
,
1457 pieces
.init_data
, pieces
.init_data_size
))
1461 /* Now that we can no longer fail, copy information */
1464 * The (size - 16) / 12 formula is based on the information recorded
1465 * for each event, which is of mode 1 (including timestamp) for all
1466 * new microcodes that include this information.
1468 priv
->_agn
.init_evtlog_ptr
= pieces
.init_evtlog_ptr
;
1469 if (pieces
.init_evtlog_size
)
1470 priv
->_agn
.init_evtlog_size
= (pieces
.init_evtlog_size
- 16)/12;
1472 priv
->_agn
.init_evtlog_size
=
1473 priv
->cfg
->base_params
->max_event_log_size
;
1474 priv
->_agn
.init_errlog_ptr
= pieces
.init_errlog_ptr
;
1475 priv
->_agn
.inst_evtlog_ptr
= pieces
.inst_evtlog_ptr
;
1476 if (pieces
.inst_evtlog_size
)
1477 priv
->_agn
.inst_evtlog_size
= (pieces
.inst_evtlog_size
- 16)/12;
1479 priv
->_agn
.inst_evtlog_size
=
1480 priv
->cfg
->base_params
->max_event_log_size
;
1481 priv
->_agn
.inst_errlog_ptr
= pieces
.inst_errlog_ptr
;
1483 priv
->new_scan_threshold_behaviour
=
1484 !!(ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_NEWSCAN
);
1486 if ((priv
->cfg
->sku
& EEPROM_SKU_CAP_IPAN_ENABLE
) &&
1487 (ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_PAN
)) {
1488 priv
->valid_contexts
|= BIT(IWL_RXON_CTX_PAN
);
1489 priv
->sta_key_max_num
= STA_KEY_MAX_NUM_PAN
;
1491 priv
->sta_key_max_num
= STA_KEY_MAX_NUM
;
1493 if (priv
->valid_contexts
!= BIT(IWL_RXON_CTX_BSS
))
1494 priv
->cmd_queue
= IWL_IPAN_CMD_QUEUE_NUM
;
1496 priv
->cmd_queue
= IWL_DEFAULT_CMD_QUEUE_NUM
;
1499 * figure out the offset of chain noise reset and gain commands
1500 * base on the size of standard phy calibration commands table size
1502 if (ucode_capa
.standard_phy_calibration_size
>
1503 IWL_MAX_PHY_CALIBRATE_TBL_SIZE
)
1504 ucode_capa
.standard_phy_calibration_size
=
1505 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE
;
1507 priv
->_agn
.phy_calib_chain_noise_reset_cmd
=
1508 ucode_capa
.standard_phy_calibration_size
;
1509 priv
->_agn
.phy_calib_chain_noise_gain_cmd
=
1510 ucode_capa
.standard_phy_calibration_size
+ 1;
1512 /**************************************************
1513 * This is still part of probe() in a sense...
1515 * 9. Setup and register with mac80211 and debugfs
1516 **************************************************/
1517 err
= iwl_mac_setup_register(priv
, &ucode_capa
);
1521 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
1523 IWL_ERR(priv
, "failed to create debugfs files. Ignoring error: %d\n", err
);
1525 err
= sysfs_create_group(&priv
->pci_dev
->dev
.kobj
,
1526 &iwl_attribute_group
);
1528 IWL_ERR(priv
, "failed to create sysfs device attributes\n");
1532 /* We have our copies now, allow OS release its copies */
1533 release_firmware(ucode_raw
);
1534 complete(&priv
->_agn
.firmware_loading_complete
);
1538 /* try next, if any */
1539 if (iwl_request_firmware(priv
, false))
1541 release_firmware(ucode_raw
);
1545 IWL_ERR(priv
, "failed to allocate pci memory\n");
1546 iwl_dealloc_ucode_pci(priv
);
1548 complete(&priv
->_agn
.firmware_loading_complete
);
1549 device_release_driver(&priv
->pci_dev
->dev
);
1550 release_firmware(ucode_raw
);
1553 static const char *desc_lookup_text
[] = {
1558 "NMI_INTERRUPT_WDG",
1562 "HW_ERROR_TUNE_LOCK",
1563 "HW_ERROR_TEMPERATURE",
1564 "ILLEGAL_CHAN_FREQ",
1567 "NMI_INTERRUPT_HOST",
1568 "NMI_INTERRUPT_ACTION_PT",
1569 "NMI_INTERRUPT_UNKNOWN",
1570 "UCODE_VERSION_MISMATCH",
1571 "HW_ERROR_ABS_LOCK",
1572 "HW_ERROR_CAL_LOCK_FAIL",
1573 "NMI_INTERRUPT_INST_ACTION_PT",
1574 "NMI_INTERRUPT_DATA_ACTION_PT",
1576 "NMI_INTERRUPT_TRM",
1577 "NMI_INTERRUPT_BREAK_POINT"
1584 static struct { char *name
; u8 num
; } advanced_lookup
[] = {
1585 { "NMI_INTERRUPT_WDG", 0x34 },
1586 { "SYSASSERT", 0x35 },
1587 { "UCODE_VERSION_MISMATCH", 0x37 },
1588 { "BAD_COMMAND", 0x38 },
1589 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
1590 { "FATAL_ERROR", 0x3D },
1591 { "NMI_TRM_HW_ERR", 0x46 },
1592 { "NMI_INTERRUPT_TRM", 0x4C },
1593 { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
1594 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
1595 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
1596 { "NMI_INTERRUPT_HOST", 0x66 },
1597 { "NMI_INTERRUPT_ACTION_PT", 0x7C },
1598 { "NMI_INTERRUPT_UNKNOWN", 0x84 },
1599 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
1600 { "ADVANCED_SYSASSERT", 0 },
1603 static const char *desc_lookup(u32 num
)
1606 int max
= ARRAY_SIZE(desc_lookup_text
);
1609 return desc_lookup_text
[num
];
1611 max
= ARRAY_SIZE(advanced_lookup
) - 1;
1612 for (i
= 0; i
< max
; i
++) {
1613 if (advanced_lookup
[i
].num
== num
)
1616 return advanced_lookup
[i
].name
;
1619 #define ERROR_START_OFFSET (1 * sizeof(u32))
1620 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1622 void iwl_dump_nic_error_log(struct iwl_priv
*priv
)
1625 struct iwl_error_event_table table
;
1627 base
= priv
->device_pointers
.error_event_table
;
1628 if (priv
->ucode_type
== IWL_UCODE_INIT
) {
1630 base
= priv
->_agn
.init_errlog_ptr
;
1633 base
= priv
->_agn
.inst_errlog_ptr
;
1636 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
1638 "Not valid error log pointer 0x%08X for %s uCode\n",
1640 (priv
->ucode_type
== IWL_UCODE_INIT
)
1645 iwl_read_targ_mem_words(priv
, base
, &table
, sizeof(table
));
1647 if (ERROR_START_OFFSET
<= table
.valid
* ERROR_ELEM_SIZE
) {
1648 IWL_ERR(priv
, "Start IWL Error Log Dump:\n");
1649 IWL_ERR(priv
, "Status: 0x%08lX, count: %d\n",
1650 priv
->status
, table
.valid
);
1653 priv
->isr_stats
.err_code
= table
.error_id
;
1655 trace_iwlwifi_dev_ucode_error(priv
, table
.error_id
, table
.tsf_low
,
1656 table
.data1
, table
.data2
, table
.line
,
1657 table
.blink1
, table
.blink2
, table
.ilink1
,
1658 table
.ilink2
, table
.bcon_time
, table
.gp1
,
1659 table
.gp2
, table
.gp3
, table
.ucode_ver
,
1660 table
.hw_ver
, table
.brd_ver
);
1661 IWL_ERR(priv
, "0x%08X | %-28s\n", table
.error_id
,
1662 desc_lookup(table
.error_id
));
1663 IWL_ERR(priv
, "0x%08X | uPc\n", table
.pc
);
1664 IWL_ERR(priv
, "0x%08X | branchlink1\n", table
.blink1
);
1665 IWL_ERR(priv
, "0x%08X | branchlink2\n", table
.blink2
);
1666 IWL_ERR(priv
, "0x%08X | interruptlink1\n", table
.ilink1
);
1667 IWL_ERR(priv
, "0x%08X | interruptlink2\n", table
.ilink2
);
1668 IWL_ERR(priv
, "0x%08X | data1\n", table
.data1
);
1669 IWL_ERR(priv
, "0x%08X | data2\n", table
.data2
);
1670 IWL_ERR(priv
, "0x%08X | line\n", table
.line
);
1671 IWL_ERR(priv
, "0x%08X | beacon time\n", table
.bcon_time
);
1672 IWL_ERR(priv
, "0x%08X | tsf low\n", table
.tsf_low
);
1673 IWL_ERR(priv
, "0x%08X | tsf hi\n", table
.tsf_hi
);
1674 IWL_ERR(priv
, "0x%08X | time gp1\n", table
.gp1
);
1675 IWL_ERR(priv
, "0x%08X | time gp2\n", table
.gp2
);
1676 IWL_ERR(priv
, "0x%08X | time gp3\n", table
.gp3
);
1677 IWL_ERR(priv
, "0x%08X | uCode version\n", table
.ucode_ver
);
1678 IWL_ERR(priv
, "0x%08X | hw version\n", table
.hw_ver
);
1679 IWL_ERR(priv
, "0x%08X | board version\n", table
.brd_ver
);
1680 IWL_ERR(priv
, "0x%08X | hcmd\n", table
.hcmd
);
1683 #define EVENT_START_OFFSET (4 * sizeof(u32))
1686 * iwl_print_event_log - Dump error event log to syslog
1689 static int iwl_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
1690 u32 num_events
, u32 mode
,
1691 int pos
, char **buf
, size_t bufsz
)
1694 u32 base
; /* SRAM byte address of event log header */
1695 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
1696 u32 ptr
; /* SRAM byte address of log data */
1697 u32 ev
, time
, data
; /* event log data */
1698 unsigned long reg_flags
;
1700 if (num_events
== 0)
1703 base
= priv
->device_pointers
.log_event_table
;
1704 if (priv
->ucode_type
== IWL_UCODE_INIT
) {
1706 base
= priv
->_agn
.init_evtlog_ptr
;
1709 base
= priv
->_agn
.inst_evtlog_ptr
;
1713 event_size
= 2 * sizeof(u32
);
1715 event_size
= 3 * sizeof(u32
);
1717 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
1719 /* Make sure device is powered up for SRAM reads */
1720 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
1721 iwl_grab_nic_access(priv
);
1723 /* Set starting address; reads will auto-increment */
1724 iwl_write32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
1727 /* "time" is actually "data" for mode 0 (no timestamp).
1728 * place event id # at far right for easier visual parsing. */
1729 for (i
= 0; i
< num_events
; i
++) {
1730 ev
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
1731 time
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
1735 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
1736 "EVT_LOG:0x%08x:%04u\n",
1739 trace_iwlwifi_dev_ucode_event(priv
, 0,
1741 IWL_ERR(priv
, "EVT_LOG:0x%08x:%04u\n",
1745 data
= iwl_read32(priv
, HBUS_TARG_MEM_RDAT
);
1747 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
1748 "EVT_LOGT:%010u:0x%08x:%04u\n",
1751 IWL_ERR(priv
, "EVT_LOGT:%010u:0x%08x:%04u\n",
1753 trace_iwlwifi_dev_ucode_event(priv
, time
,
1759 /* Allow device to power down */
1760 iwl_release_nic_access(priv
);
1761 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
1766 * iwl_print_last_event_logs - Dump the newest # of event log to syslog
1768 static int iwl_print_last_event_logs(struct iwl_priv
*priv
, u32 capacity
,
1769 u32 num_wraps
, u32 next_entry
,
1771 int pos
, char **buf
, size_t bufsz
)
1774 * display the newest DEFAULT_LOG_ENTRIES entries
1775 * i.e the entries just before the next ont that uCode would fill.
1778 if (next_entry
< size
) {
1779 pos
= iwl_print_event_log(priv
,
1780 capacity
- (size
- next_entry
),
1781 size
- next_entry
, mode
,
1783 pos
= iwl_print_event_log(priv
, 0,
1787 pos
= iwl_print_event_log(priv
, next_entry
- size
,
1788 size
, mode
, pos
, buf
, bufsz
);
1790 if (next_entry
< size
) {
1791 pos
= iwl_print_event_log(priv
, 0, next_entry
,
1792 mode
, pos
, buf
, bufsz
);
1794 pos
= iwl_print_event_log(priv
, next_entry
- size
,
1795 size
, mode
, pos
, buf
, bufsz
);
1801 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
1803 int iwl_dump_nic_event_log(struct iwl_priv
*priv
, bool full_log
,
1804 char **buf
, bool display
)
1806 u32 base
; /* SRAM byte address of event log header */
1807 u32 capacity
; /* event log capacity in # entries */
1808 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
1809 u32 num_wraps
; /* # times uCode wrapped to top of log */
1810 u32 next_entry
; /* index of next entry to be written by uCode */
1811 u32 size
; /* # entries that we'll print */
1816 base
= priv
->device_pointers
.log_event_table
;
1817 if (priv
->ucode_type
== IWL_UCODE_INIT
) {
1818 logsize
= priv
->_agn
.init_evtlog_size
;
1820 base
= priv
->_agn
.init_evtlog_ptr
;
1822 logsize
= priv
->_agn
.inst_evtlog_size
;
1824 base
= priv
->_agn
.inst_evtlog_ptr
;
1827 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
1829 "Invalid event log pointer 0x%08X for %s uCode\n",
1831 (priv
->ucode_type
== IWL_UCODE_INIT
)
1836 /* event log header */
1837 capacity
= iwl_read_targ_mem(priv
, base
);
1838 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
1839 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
1840 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
1842 if (capacity
> logsize
) {
1843 IWL_ERR(priv
, "Log capacity %d is bogus, limit to %d entries\n",
1848 if (next_entry
> logsize
) {
1849 IWL_ERR(priv
, "Log write index %d is bogus, limit to %d\n",
1850 next_entry
, logsize
);
1851 next_entry
= logsize
;
1854 size
= num_wraps
? capacity
: next_entry
;
1856 /* bail out if nothing in log */
1858 IWL_ERR(priv
, "Start IWL Event Log Dump: nothing in log\n");
1862 /* enable/disable bt channel inhibition */
1863 priv
->bt_ch_announce
= iwlagn_bt_ch_announce
;
1865 #ifdef CONFIG_IWLWIFI_DEBUG
1866 if (!(iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) && !full_log
)
1867 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
1868 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
1870 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
1871 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
1873 IWL_ERR(priv
, "Start IWL Event Log Dump: display last %u entries\n",
1876 #ifdef CONFIG_IWLWIFI_DEBUG
1879 bufsz
= capacity
* 48;
1882 *buf
= kmalloc(bufsz
, GFP_KERNEL
);
1886 if ((iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) || full_log
) {
1888 * if uCode has wrapped back to top of log,
1889 * start at the oldest entry,
1890 * i.e the next one that uCode would fill.
1893 pos
= iwl_print_event_log(priv
, next_entry
,
1894 capacity
- next_entry
, mode
,
1896 /* (then/else) start at top of log */
1897 pos
= iwl_print_event_log(priv
, 0,
1898 next_entry
, mode
, pos
, buf
, bufsz
);
1900 pos
= iwl_print_last_event_logs(priv
, capacity
, num_wraps
,
1901 next_entry
, size
, mode
,
1904 pos
= iwl_print_last_event_logs(priv
, capacity
, num_wraps
,
1905 next_entry
, size
, mode
,
1911 static void iwl_rf_kill_ct_config(struct iwl_priv
*priv
)
1913 struct iwl_ct_kill_config cmd
;
1914 struct iwl_ct_kill_throttling_config adv_cmd
;
1915 unsigned long flags
;
1918 spin_lock_irqsave(&priv
->lock
, flags
);
1919 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
1920 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
1921 spin_unlock_irqrestore(&priv
->lock
, flags
);
1922 priv
->thermal_throttle
.ct_kill_toggle
= false;
1924 if (priv
->cfg
->base_params
->support_ct_kill_exit
) {
1925 adv_cmd
.critical_temperature_enter
=
1926 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
1927 adv_cmd
.critical_temperature_exit
=
1928 cpu_to_le32(priv
->hw_params
.ct_kill_exit_threshold
);
1930 ret
= iwl_send_cmd_pdu(priv
, REPLY_CT_KILL_CONFIG_CMD
,
1931 sizeof(adv_cmd
), &adv_cmd
);
1933 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1935 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1937 "critical temperature enter is %d,"
1939 priv
->hw_params
.ct_kill_threshold
,
1940 priv
->hw_params
.ct_kill_exit_threshold
);
1942 cmd
.critical_temperature_R
=
1943 cpu_to_le32(priv
->hw_params
.ct_kill_threshold
);
1945 ret
= iwl_send_cmd_pdu(priv
, REPLY_CT_KILL_CONFIG_CMD
,
1948 IWL_ERR(priv
, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1950 IWL_DEBUG_INFO(priv
, "REPLY_CT_KILL_CONFIG_CMD "
1952 "critical temperature is %d\n",
1953 priv
->hw_params
.ct_kill_threshold
);
1957 static int iwlagn_send_calib_cfg_rt(struct iwl_priv
*priv
, u32 cfg
)
1959 struct iwl_calib_cfg_cmd calib_cfg_cmd
;
1960 struct iwl_host_cmd cmd
= {
1961 .id
= CALIBRATION_CFG_CMD
,
1962 .len
= { sizeof(struct iwl_calib_cfg_cmd
), },
1963 .data
= { &calib_cfg_cmd
, },
1966 memset(&calib_cfg_cmd
, 0, sizeof(calib_cfg_cmd
));
1967 calib_cfg_cmd
.ucd_calib_cfg
.once
.is_enable
= IWL_CALIB_INIT_CFG_ALL
;
1968 calib_cfg_cmd
.ucd_calib_cfg
.once
.start
= cpu_to_le32(cfg
);
1970 return iwl_send_cmd(priv
, &cmd
);
1975 * iwl_alive_start - called after REPLY_ALIVE notification received
1976 * from protocol/runtime uCode (initialization uCode's
1977 * Alive gets handled by iwl_init_alive_start()).
1979 int iwl_alive_start(struct iwl_priv
*priv
)
1982 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
1984 iwl_reset_ict(priv
);
1986 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
1988 /* After the ALIVE response, we can send host commands to the uCode */
1989 set_bit(STATUS_ALIVE
, &priv
->status
);
1991 /* Enable watchdog to monitor the driver tx queues */
1992 iwl_setup_watchdog(priv
);
1994 if (iwl_is_rfkill(priv
))
1997 /* download priority table before any calibration request */
1998 if (priv
->cfg
->bt_params
&&
1999 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
2000 /* Configure Bluetooth device coexistence support */
2001 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
2002 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
2003 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
2004 priv
->cfg
->ops
->hcmd
->send_bt_config(priv
);
2005 priv
->bt_valid
= IWLAGN_BT_VALID_ENABLE_FLAGS
;
2006 iwlagn_send_prio_tbl(priv
);
2008 /* FIXME: w/a to force change uCode BT state machine */
2009 ret
= iwlagn_send_bt_env(priv
, IWL_BT_COEX_ENV_OPEN
,
2010 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
2013 ret
= iwlagn_send_bt_env(priv
, IWL_BT_COEX_ENV_CLOSE
,
2014 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2
);
2018 if (priv
->hw_params
.calib_rt_cfg
)
2019 iwlagn_send_calib_cfg_rt(priv
, priv
->hw_params
.calib_rt_cfg
);
2021 ieee80211_wake_queues(priv
->hw
);
2023 priv
->active_rate
= IWL_RATES_MASK
;
2025 /* Configure Tx antenna selection based on H/W config */
2026 if (priv
->cfg
->ops
->hcmd
->set_tx_ant
)
2027 priv
->cfg
->ops
->hcmd
->set_tx_ant(priv
, priv
->cfg
->valid_tx_ant
);
2029 if (iwl_is_associated_ctx(ctx
)) {
2030 struct iwl_rxon_cmd
*active_rxon
=
2031 (struct iwl_rxon_cmd
*)&ctx
->active
;
2032 /* apply any changes in staging */
2033 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
2034 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2036 struct iwl_rxon_context
*tmp
;
2037 /* Initialize our rx_config data */
2038 for_each_context(priv
, tmp
)
2039 iwl_connection_init_rx_config(priv
, tmp
);
2041 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2042 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
, ctx
);
2045 if (!priv
->cfg
->bt_params
|| (priv
->cfg
->bt_params
&&
2046 !priv
->cfg
->bt_params
->advanced_bt_coexist
)) {
2048 * default is 2-wire BT coexexistence support
2050 priv
->cfg
->ops
->hcmd
->send_bt_config(priv
);
2053 iwl_reset_run_time_calib(priv
);
2055 set_bit(STATUS_READY
, &priv
->status
);
2057 /* Configure the adapter for unassociated operation */
2058 ret
= iwlagn_commit_rxon(priv
, ctx
);
2062 /* At this point, the NIC is initialized and operational */
2063 iwl_rf_kill_ct_config(priv
);
2065 IWL_DEBUG_INFO(priv
, "ALIVE processing complete.\n");
2067 return iwl_power_update_mode(priv
, true);
2070 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
);
2072 static void __iwl_down(struct iwl_priv
*priv
)
2076 IWL_DEBUG_INFO(priv
, DRV_NAME
" is going down\n");
2078 iwl_scan_cancel_timeout(priv
, 200);
2080 exit_pending
= test_and_set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2082 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
2083 * to prevent rearm timer */
2084 del_timer_sync(&priv
->watchdog
);
2086 iwl_clear_ucode_stations(priv
, NULL
);
2087 iwl_dealloc_bcast_stations(priv
);
2088 iwl_clear_driver_stations(priv
);
2090 /* reset BT coex data */
2091 priv
->bt_status
= 0;
2092 if (priv
->cfg
->bt_params
)
2093 priv
->bt_traffic_load
=
2094 priv
->cfg
->bt_params
->bt_init_traffic_load
;
2096 priv
->bt_traffic_load
= 0;
2097 priv
->bt_full_concurrent
= false;
2098 priv
->bt_ci_compliance
= 0;
2100 /* Wipe out the EXIT_PENDING status bit if we are not actually
2101 * exiting the module */
2103 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2105 if (priv
->mac80211_registered
)
2106 ieee80211_stop_queues(priv
->hw
);
2108 /* Clear out all status bits but a few that are stable across reset */
2109 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
2111 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
2112 STATUS_GEO_CONFIGURED
|
2113 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
2115 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
2116 STATUS_EXIT_PENDING
;
2118 iwlagn_stop_device(priv
);
2120 dev_kfree_skb(priv
->beacon_skb
);
2121 priv
->beacon_skb
= NULL
;
2124 static void iwl_down(struct iwl_priv
*priv
)
2126 mutex_lock(&priv
->mutex
);
2128 mutex_unlock(&priv
->mutex
);
2130 iwl_cancel_deferred_work(priv
);
2133 #define HW_READY_TIMEOUT (50)
2135 /* Note: returns poll_bit return value, which is >= 0 if success */
2136 static int iwl_set_hw_ready(struct iwl_priv
*priv
)
2140 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
2141 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
);
2143 /* See if we got it */
2144 ret
= iwl_poll_bit(priv
, CSR_HW_IF_CONFIG_REG
,
2145 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
,
2146 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
,
2149 IWL_DEBUG_INFO(priv
, "hardware%s ready\n", ret
< 0 ? " not" : "");
2153 /* Note: returns standard 0/-ERROR code */
2154 int iwl_prepare_card_hw(struct iwl_priv
*priv
)
2158 IWL_DEBUG_INFO(priv
, "iwl_prepare_card_hw enter\n");
2160 ret
= iwl_set_hw_ready(priv
);
2164 /* If HW is not ready, prepare the conditions to check again */
2165 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
2166 CSR_HW_IF_CONFIG_REG_PREPARE
);
2168 ret
= iwl_poll_bit(priv
, CSR_HW_IF_CONFIG_REG
,
2169 ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE
,
2170 CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE
, 150000);
2175 /* HW should be ready by now, check again. */
2176 ret
= iwl_set_hw_ready(priv
);
2182 #define MAX_HW_RESTARTS 5
2184 static int __iwl_up(struct iwl_priv
*priv
)
2186 struct iwl_rxon_context
*ctx
;
2189 lockdep_assert_held(&priv
->mutex
);
2191 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
2192 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
2196 for_each_context(priv
, ctx
) {
2197 ret
= iwlagn_alloc_bcast_station(priv
, ctx
);
2199 iwl_dealloc_bcast_stations(priv
);
2204 ret
= iwlagn_run_init_ucode(priv
);
2206 IWL_ERR(priv
, "Failed to run INIT ucode: %d\n", ret
);
2210 ret
= iwlagn_load_ucode_wait_alive(priv
,
2214 IWL_ERR(priv
, "Failed to start RT ucode: %d\n", ret
);
2218 ret
= iwl_alive_start(priv
);
2224 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2226 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2228 IWL_ERR(priv
, "Unable to initialize device.\n");
2233 /*****************************************************************************
2235 * Workqueue callbacks
2237 *****************************************************************************/
2239 static void iwl_bg_run_time_calib_work(struct work_struct
*work
)
2241 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
2242 run_time_calib_work
);
2244 mutex_lock(&priv
->mutex
);
2246 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
2247 test_bit(STATUS_SCANNING
, &priv
->status
)) {
2248 mutex_unlock(&priv
->mutex
);
2252 if (priv
->start_calib
) {
2253 iwl_chain_noise_calibration(priv
);
2254 iwl_sensitivity_calibration(priv
);
2257 mutex_unlock(&priv
->mutex
);
2260 static void iwlagn_prepare_restart(struct iwl_priv
*priv
)
2262 struct iwl_rxon_context
*ctx
;
2263 bool bt_full_concurrent
;
2264 u8 bt_ci_compliance
;
2268 lockdep_assert_held(&priv
->mutex
);
2270 for_each_context(priv
, ctx
)
2275 * __iwl_down() will clear the BT status variables,
2276 * which is correct, but when we restart we really
2277 * want to keep them so restore them afterwards.
2279 * The restart process will later pick them up and
2280 * re-configure the hw when we reconfigure the BT
2283 bt_full_concurrent
= priv
->bt_full_concurrent
;
2284 bt_ci_compliance
= priv
->bt_ci_compliance
;
2285 bt_load
= priv
->bt_traffic_load
;
2286 bt_status
= priv
->bt_status
;
2290 priv
->bt_full_concurrent
= bt_full_concurrent
;
2291 priv
->bt_ci_compliance
= bt_ci_compliance
;
2292 priv
->bt_traffic_load
= bt_load
;
2293 priv
->bt_status
= bt_status
;
2296 static void iwl_bg_restart(struct work_struct
*data
)
2298 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
2300 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2303 if (test_and_clear_bit(STATUS_FW_ERROR
, &priv
->status
)) {
2304 mutex_lock(&priv
->mutex
);
2305 iwlagn_prepare_restart(priv
);
2306 mutex_unlock(&priv
->mutex
);
2307 iwl_cancel_deferred_work(priv
);
2308 ieee80211_restart_hw(priv
->hw
);
2314 static void iwl_bg_rx_replenish(struct work_struct
*data
)
2316 struct iwl_priv
*priv
=
2317 container_of(data
, struct iwl_priv
, rx_replenish
);
2319 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2322 mutex_lock(&priv
->mutex
);
2323 iwlagn_rx_replenish(priv
);
2324 mutex_unlock(&priv
->mutex
);
2327 static int iwl_mac_offchannel_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
2328 struct ieee80211_channel
*chan
,
2329 enum nl80211_channel_type channel_type
,
2332 struct iwl_priv
*priv
= hw
->priv
;
2335 /* Not supported if we don't have PAN */
2336 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
))) {
2341 /* Not supported on pre-P2P firmware */
2342 if (!(priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
&
2343 BIT(NL80211_IFTYPE_P2P_CLIENT
))) {
2348 mutex_lock(&priv
->mutex
);
2350 if (!priv
->contexts
[IWL_RXON_CTX_PAN
].is_active
) {
2352 * If the PAN context is free, use the normal
2353 * way of doing remain-on-channel offload + TX.
2359 /* TODO: queue up if scanning? */
2360 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
2361 priv
->_agn
.offchan_tx_skb
) {
2367 * max_scan_ie_len doesn't include the blank SSID or the header,
2368 * so need to add that again here.
2370 if (skb
->len
> hw
->wiphy
->max_scan_ie_len
+ 24 + 2) {
2375 priv
->_agn
.offchan_tx_skb
= skb
;
2376 priv
->_agn
.offchan_tx_timeout
= wait
;
2377 priv
->_agn
.offchan_tx_chan
= chan
;
2379 ret
= iwl_scan_initiate(priv
, priv
->contexts
[IWL_RXON_CTX_PAN
].vif
,
2380 IWL_SCAN_OFFCH_TX
, chan
->band
);
2382 priv
->_agn
.offchan_tx_skb
= NULL
;
2384 mutex_unlock(&priv
->mutex
);
2392 static int iwl_mac_offchannel_tx_cancel_wait(struct ieee80211_hw
*hw
)
2394 struct iwl_priv
*priv
= hw
->priv
;
2397 mutex_lock(&priv
->mutex
);
2399 if (!priv
->_agn
.offchan_tx_skb
) {
2404 priv
->_agn
.offchan_tx_skb
= NULL
;
2406 ret
= iwl_scan_cancel_timeout(priv
, 200);
2410 mutex_unlock(&priv
->mutex
);
2415 /*****************************************************************************
2417 * mac80211 entry point functions
2419 *****************************************************************************/
2421 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits
[] = {
2424 .types
= BIT(NL80211_IFTYPE_STATION
),
2428 .types
= BIT(NL80211_IFTYPE_AP
),
2432 static const struct ieee80211_iface_limit iwlagn_2sta_limits
[] = {
2435 .types
= BIT(NL80211_IFTYPE_STATION
),
2439 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits
[] = {
2442 .types
= BIT(NL80211_IFTYPE_STATION
),
2446 .types
= BIT(NL80211_IFTYPE_P2P_GO
) |
2447 BIT(NL80211_IFTYPE_AP
),
2451 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits
[] = {
2454 .types
= BIT(NL80211_IFTYPE_STATION
),
2458 .types
= BIT(NL80211_IFTYPE_P2P_CLIENT
),
2462 static const struct ieee80211_iface_combination
2463 iwlagn_iface_combinations_dualmode
[] = {
2464 { .num_different_channels
= 1,
2465 .max_interfaces
= 2,
2466 .beacon_int_infra_match
= true,
2467 .limits
= iwlagn_sta_ap_limits
,
2468 .n_limits
= ARRAY_SIZE(iwlagn_sta_ap_limits
),
2470 { .num_different_channels
= 1,
2471 .max_interfaces
= 2,
2472 .limits
= iwlagn_2sta_limits
,
2473 .n_limits
= ARRAY_SIZE(iwlagn_2sta_limits
),
2477 static const struct ieee80211_iface_combination
2478 iwlagn_iface_combinations_p2p
[] = {
2479 { .num_different_channels
= 1,
2480 .max_interfaces
= 2,
2481 .beacon_int_infra_match
= true,
2482 .limits
= iwlagn_p2p_sta_go_limits
,
2483 .n_limits
= ARRAY_SIZE(iwlagn_p2p_sta_go_limits
),
2485 { .num_different_channels
= 1,
2486 .max_interfaces
= 2,
2487 .limits
= iwlagn_p2p_2sta_limits
,
2488 .n_limits
= ARRAY_SIZE(iwlagn_p2p_2sta_limits
),
2493 * Not a mac80211 entry point function, but it fits in with all the
2494 * other mac80211 functions grouped here.
2496 static int iwl_mac_setup_register(struct iwl_priv
*priv
,
2497 struct iwlagn_ucode_capabilities
*capa
)
2500 struct ieee80211_hw
*hw
= priv
->hw
;
2501 struct iwl_rxon_context
*ctx
;
2503 hw
->rate_control_algorithm
= "iwl-agn-rs";
2505 /* Tell mac80211 our characteristics */
2506 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
2507 IEEE80211_HW_AMPDU_AGGREGATION
|
2508 IEEE80211_HW_NEED_DTIM_PERIOD
|
2509 IEEE80211_HW_SPECTRUM_MGMT
|
2510 IEEE80211_HW_REPORTS_TX_ACK_STATUS
;
2512 hw
->max_tx_aggregation_subframes
= LINK_QUAL_AGG_FRAME_LIMIT_DEF
;
2514 hw
->flags
|= IEEE80211_HW_SUPPORTS_PS
|
2515 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
;
2517 if (priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
)
2518 hw
->flags
|= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
2519 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
2521 if (capa
->flags
& IWL_UCODE_TLV_FLAGS_MFP
)
2522 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
2524 hw
->sta_data_size
= sizeof(struct iwl_station_priv
);
2525 hw
->vif_data_size
= sizeof(struct iwl_vif_priv
);
2527 for_each_context(priv
, ctx
) {
2528 hw
->wiphy
->interface_modes
|= ctx
->interface_modes
;
2529 hw
->wiphy
->interface_modes
|= ctx
->exclusive_interface_modes
;
2532 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
2534 if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)) {
2535 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_p2p
;
2536 hw
->wiphy
->n_iface_combinations
=
2537 ARRAY_SIZE(iwlagn_iface_combinations_p2p
);
2538 } else if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_AP
)) {
2539 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_dualmode
;
2540 hw
->wiphy
->n_iface_combinations
=
2541 ARRAY_SIZE(iwlagn_iface_combinations_dualmode
);
2544 hw
->wiphy
->max_remain_on_channel_duration
= 1000;
2546 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
|
2547 WIPHY_FLAG_DISABLE_BEACON_HINTS
|
2548 WIPHY_FLAG_IBSS_RSN
;
2551 * For now, disable PS by default because it affects
2552 * RX performance significantly.
2554 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
2556 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
2557 /* we create the 802.11 header and a zero-length SSID element */
2558 hw
->wiphy
->max_scan_ie_len
= capa
->max_probe_length
- 24 - 2;
2560 /* Default value; 4 EDCA QOS priorities */
2563 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
2565 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
2566 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
2567 &priv
->bands
[IEEE80211_BAND_2GHZ
];
2568 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
2569 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
2570 &priv
->bands
[IEEE80211_BAND_5GHZ
];
2572 iwl_leds_init(priv
);
2574 ret
= ieee80211_register_hw(priv
->hw
);
2576 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
2579 priv
->mac80211_registered
= 1;
2585 static int iwlagn_mac_start(struct ieee80211_hw
*hw
)
2587 struct iwl_priv
*priv
= hw
->priv
;
2590 IWL_DEBUG_MAC80211(priv
, "enter\n");
2592 /* we should be verifying the device is ready to be opened */
2593 mutex_lock(&priv
->mutex
);
2594 ret
= __iwl_up(priv
);
2595 mutex_unlock(&priv
->mutex
);
2599 IWL_DEBUG_INFO(priv
, "Start UP work done.\n");
2601 /* Now we should be done, and the READY bit should be set. */
2602 if (WARN_ON(!test_bit(STATUS_READY
, &priv
->status
)))
2605 iwlagn_led_enable(priv
);
2608 IWL_DEBUG_MAC80211(priv
, "leave\n");
2612 static void iwlagn_mac_stop(struct ieee80211_hw
*hw
)
2614 struct iwl_priv
*priv
= hw
->priv
;
2616 IWL_DEBUG_MAC80211(priv
, "enter\n");
2625 flush_workqueue(priv
->workqueue
);
2627 /* User space software may expect getting rfkill changes
2628 * even if interface is down */
2629 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
2630 iwl_enable_rfkill_int(priv
);
2632 IWL_DEBUG_MAC80211(priv
, "leave\n");
2635 static void iwlagn_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
2637 struct iwl_priv
*priv
= hw
->priv
;
2639 IWL_DEBUG_MACDUMP(priv
, "enter\n");
2641 IWL_DEBUG_TX(priv
, "dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
2642 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
2644 if (iwlagn_tx_skb(priv
, skb
))
2645 dev_kfree_skb_any(skb
);
2647 IWL_DEBUG_MACDUMP(priv
, "leave\n");
2650 static void iwlagn_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2651 struct ieee80211_vif
*vif
,
2652 struct ieee80211_key_conf
*keyconf
,
2653 struct ieee80211_sta
*sta
,
2654 u32 iv32
, u16
*phase1key
)
2656 struct iwl_priv
*priv
= hw
->priv
;
2657 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2659 IWL_DEBUG_MAC80211(priv
, "enter\n");
2661 iwl_update_tkip_key(priv
, vif_priv
->ctx
, keyconf
, sta
,
2664 IWL_DEBUG_MAC80211(priv
, "leave\n");
2667 static int iwlagn_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
2668 struct ieee80211_vif
*vif
,
2669 struct ieee80211_sta
*sta
,
2670 struct ieee80211_key_conf
*key
)
2672 struct iwl_priv
*priv
= hw
->priv
;
2673 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2674 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
2677 bool is_default_wep_key
= false;
2679 IWL_DEBUG_MAC80211(priv
, "enter\n");
2681 if (iwlagn_mod_params
.sw_crypto
) {
2682 IWL_DEBUG_MAC80211(priv
, "leave - hwcrypto disabled\n");
2687 * To support IBSS RSN, don't program group keys in IBSS, the
2688 * hardware will then not attempt to decrypt the frames.
2690 if (vif
->type
== NL80211_IFTYPE_ADHOC
&&
2691 !(key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
))
2694 sta_id
= iwl_sta_id_or_broadcast(priv
, vif_priv
->ctx
, sta
);
2695 if (sta_id
== IWL_INVALID_STATION
)
2698 mutex_lock(&priv
->mutex
);
2699 iwl_scan_cancel_timeout(priv
, 100);
2702 * If we are getting WEP group key and we didn't receive any key mapping
2703 * so far, we are in legacy wep mode (group key only), otherwise we are
2705 * In legacy wep mode, we use another host command to the uCode.
2707 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
2708 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) &&
2711 is_default_wep_key
= !ctx
->key_mapping_keys
;
2713 is_default_wep_key
=
2714 (key
->hw_key_idx
== HW_KEY_DEFAULT
);
2719 if (is_default_wep_key
)
2720 ret
= iwl_set_default_wep_key(priv
, vif_priv
->ctx
, key
);
2722 ret
= iwl_set_dynamic_key(priv
, vif_priv
->ctx
,
2725 IWL_DEBUG_MAC80211(priv
, "enable hwcrypto key\n");
2728 if (is_default_wep_key
)
2729 ret
= iwl_remove_default_wep_key(priv
, ctx
, key
);
2731 ret
= iwl_remove_dynamic_key(priv
, ctx
, key
, sta_id
);
2733 IWL_DEBUG_MAC80211(priv
, "disable hwcrypto key\n");
2739 mutex_unlock(&priv
->mutex
);
2740 IWL_DEBUG_MAC80211(priv
, "leave\n");
2745 static int iwlagn_mac_ampdu_action(struct ieee80211_hw
*hw
,
2746 struct ieee80211_vif
*vif
,
2747 enum ieee80211_ampdu_mlme_action action
,
2748 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
2751 struct iwl_priv
*priv
= hw
->priv
;
2753 struct iwl_station_priv
*sta_priv
= (void *) sta
->drv_priv
;
2755 IWL_DEBUG_HT(priv
, "A-MPDU action on addr %pM tid %d\n",
2758 if (!(priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
))
2761 mutex_lock(&priv
->mutex
);
2764 case IEEE80211_AMPDU_RX_START
:
2765 IWL_DEBUG_HT(priv
, "start Rx\n");
2766 ret
= iwl_sta_rx_agg_start(priv
, sta
, tid
, *ssn
);
2768 case IEEE80211_AMPDU_RX_STOP
:
2769 IWL_DEBUG_HT(priv
, "stop Rx\n");
2770 ret
= iwl_sta_rx_agg_stop(priv
, sta
, tid
);
2771 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2774 case IEEE80211_AMPDU_TX_START
:
2775 IWL_DEBUG_HT(priv
, "start Tx\n");
2776 ret
= iwlagn_tx_agg_start(priv
, vif
, sta
, tid
, ssn
);
2778 priv
->_agn
.agg_tids_count
++;
2779 IWL_DEBUG_HT(priv
, "priv->_agn.agg_tids_count = %u\n",
2780 priv
->_agn
.agg_tids_count
);
2783 case IEEE80211_AMPDU_TX_STOP
:
2784 IWL_DEBUG_HT(priv
, "stop Tx\n");
2785 ret
= iwlagn_tx_agg_stop(priv
, vif
, sta
, tid
);
2786 if ((ret
== 0) && (priv
->_agn
.agg_tids_count
> 0)) {
2787 priv
->_agn
.agg_tids_count
--;
2788 IWL_DEBUG_HT(priv
, "priv->_agn.agg_tids_count = %u\n",
2789 priv
->_agn
.agg_tids_count
);
2791 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2793 if (priv
->cfg
->ht_params
&&
2794 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
2796 * switch off RTS/CTS if it was previously enabled
2798 sta_priv
->lq_sta
.lq
.general_params
.flags
&=
2799 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
2800 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
2801 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
2804 case IEEE80211_AMPDU_TX_OPERATIONAL
:
2805 buf_size
= min_t(int, buf_size
, LINK_QUAL_AGG_FRAME_LIMIT_DEF
);
2807 iwlagn_txq_agg_queue_setup(priv
, sta
, tid
, buf_size
);
2810 * If the limit is 0, then it wasn't initialised yet,
2811 * use the default. We can do that since we take the
2812 * minimum below, and we don't want to go above our
2813 * default due to hardware restrictions.
2815 if (sta_priv
->max_agg_bufsize
== 0)
2816 sta_priv
->max_agg_bufsize
=
2817 LINK_QUAL_AGG_FRAME_LIMIT_DEF
;
2820 * Even though in theory the peer could have different
2821 * aggregation reorder buffer sizes for different sessions,
2822 * our ucode doesn't allow for that and has a global limit
2823 * for each station. Therefore, use the minimum of all the
2824 * aggregation sessions and our default value.
2826 sta_priv
->max_agg_bufsize
=
2827 min(sta_priv
->max_agg_bufsize
, buf_size
);
2829 if (priv
->cfg
->ht_params
&&
2830 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
2832 * switch to RTS/CTS if it is the prefer protection
2833 * method for HT traffic
2836 sta_priv
->lq_sta
.lq
.general_params
.flags
|=
2837 LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
2840 sta_priv
->lq_sta
.lq
.agg_params
.agg_frame_cnt_limit
=
2841 sta_priv
->max_agg_bufsize
;
2843 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
2844 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
2846 IWL_INFO(priv
, "Tx aggregation enabled on ra = %pM tid = %d\n",
2851 mutex_unlock(&priv
->mutex
);
2856 static int iwlagn_mac_sta_add(struct ieee80211_hw
*hw
,
2857 struct ieee80211_vif
*vif
,
2858 struct ieee80211_sta
*sta
)
2860 struct iwl_priv
*priv
= hw
->priv
;
2861 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
2862 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
2863 bool is_ap
= vif
->type
== NL80211_IFTYPE_STATION
;
2867 IWL_DEBUG_INFO(priv
, "received request to add station %pM\n",
2869 mutex_lock(&priv
->mutex
);
2870 IWL_DEBUG_INFO(priv
, "proceeding to add station %pM\n",
2872 sta_priv
->common
.sta_id
= IWL_INVALID_STATION
;
2874 atomic_set(&sta_priv
->pending_frames
, 0);
2875 if (vif
->type
== NL80211_IFTYPE_AP
)
2876 sta_priv
->client
= true;
2878 ret
= iwl_add_station_common(priv
, vif_priv
->ctx
, sta
->addr
,
2879 is_ap
, sta
, &sta_id
);
2881 IWL_ERR(priv
, "Unable to add station %pM (%d)\n",
2883 /* Should we return success if return code is EEXIST ? */
2884 mutex_unlock(&priv
->mutex
);
2888 sta_priv
->common
.sta_id
= sta_id
;
2890 /* Initialize rate scaling */
2891 IWL_DEBUG_INFO(priv
, "Initializing rate scaling for station %pM\n",
2893 iwl_rs_rate_init(priv
, sta
, sta_id
);
2894 mutex_unlock(&priv
->mutex
);
2899 static void iwlagn_mac_channel_switch(struct ieee80211_hw
*hw
,
2900 struct ieee80211_channel_switch
*ch_switch
)
2902 struct iwl_priv
*priv
= hw
->priv
;
2903 const struct iwl_channel_info
*ch_info
;
2904 struct ieee80211_conf
*conf
= &hw
->conf
;
2905 struct ieee80211_channel
*channel
= ch_switch
->channel
;
2906 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
2909 * When we add support for multiple interfaces, we need to
2910 * revisit this. The channel switch command in the device
2911 * only affects the BSS context, but what does that really
2912 * mean? And what if we get a CSA on the second interface?
2913 * This needs a lot of work.
2915 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
2918 IWL_DEBUG_MAC80211(priv
, "enter\n");
2920 mutex_lock(&priv
->mutex
);
2922 if (iwl_is_rfkill(priv
))
2925 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
2926 test_bit(STATUS_SCANNING
, &priv
->status
) ||
2927 test_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
))
2930 if (!iwl_is_associated_ctx(ctx
))
2933 if (!priv
->cfg
->ops
->lib
->set_channel_switch
)
2936 ch
= channel
->hw_value
;
2937 if (le16_to_cpu(ctx
->active
.channel
) == ch
)
2940 ch_info
= iwl_get_channel_info(priv
, channel
->band
, ch
);
2941 if (!is_channel_valid(ch_info
)) {
2942 IWL_DEBUG_MAC80211(priv
, "invalid channel\n");
2946 spin_lock_irq(&priv
->lock
);
2948 priv
->current_ht_config
.smps
= conf
->smps_mode
;
2950 /* Configure HT40 channels */
2951 ctx
->ht
.enabled
= conf_is_ht(conf
);
2952 if (ctx
->ht
.enabled
) {
2953 if (conf_is_ht40_minus(conf
)) {
2954 ctx
->ht
.extension_chan_offset
=
2955 IEEE80211_HT_PARAM_CHA_SEC_BELOW
;
2956 ctx
->ht
.is_40mhz
= true;
2957 } else if (conf_is_ht40_plus(conf
)) {
2958 ctx
->ht
.extension_chan_offset
=
2959 IEEE80211_HT_PARAM_CHA_SEC_ABOVE
;
2960 ctx
->ht
.is_40mhz
= true;
2962 ctx
->ht
.extension_chan_offset
=
2963 IEEE80211_HT_PARAM_CHA_SEC_NONE
;
2964 ctx
->ht
.is_40mhz
= false;
2967 ctx
->ht
.is_40mhz
= false;
2969 if ((le16_to_cpu(ctx
->staging
.channel
) != ch
))
2970 ctx
->staging
.flags
= 0;
2972 iwl_set_rxon_channel(priv
, channel
, ctx
);
2973 iwl_set_rxon_ht(priv
, ht_conf
);
2974 iwl_set_flags_for_band(priv
, ctx
, channel
->band
, ctx
->vif
);
2976 spin_unlock_irq(&priv
->lock
);
2980 * at this point, staging_rxon has the
2981 * configuration for channel switch
2983 set_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
);
2984 priv
->switch_channel
= cpu_to_le16(ch
);
2985 if (priv
->cfg
->ops
->lib
->set_channel_switch(priv
, ch_switch
)) {
2986 clear_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
);
2987 priv
->switch_channel
= 0;
2988 ieee80211_chswitch_done(ctx
->vif
, false);
2992 mutex_unlock(&priv
->mutex
);
2993 IWL_DEBUG_MAC80211(priv
, "leave\n");
2996 static void iwlagn_configure_filter(struct ieee80211_hw
*hw
,
2997 unsigned int changed_flags
,
2998 unsigned int *total_flags
,
3001 struct iwl_priv
*priv
= hw
->priv
;
3002 __le32 filter_or
= 0, filter_nand
= 0;
3003 struct iwl_rxon_context
*ctx
;
3005 #define CHK(test, flag) do { \
3006 if (*total_flags & (test)) \
3007 filter_or |= (flag); \
3009 filter_nand |= (flag); \
3012 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
3013 changed_flags
, *total_flags
);
3015 CHK(FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
, RXON_FILTER_PROMISC_MSK
);
3016 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
3017 CHK(FIF_CONTROL
, RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_PROMISC_MSK
);
3018 CHK(FIF_BCN_PRBRESP_PROMISC
, RXON_FILTER_BCON_AWARE_MSK
);
3022 mutex_lock(&priv
->mutex
);
3024 for_each_context(priv
, ctx
) {
3025 ctx
->staging
.filter_flags
&= ~filter_nand
;
3026 ctx
->staging
.filter_flags
|= filter_or
;
3029 * Not committing directly because hardware can perform a scan,
3030 * but we'll eventually commit the filter flags change anyway.
3034 mutex_unlock(&priv
->mutex
);
3037 * Receiving all multicast frames is always enabled by the
3038 * default flags setup in iwl_connection_init_rx_config()
3039 * since we currently do not support programming multicast
3040 * filters into the device.
3042 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
3043 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
3046 static void iwlagn_mac_flush(struct ieee80211_hw
*hw
, bool drop
)
3048 struct iwl_priv
*priv
= hw
->priv
;
3050 mutex_lock(&priv
->mutex
);
3051 IWL_DEBUG_MAC80211(priv
, "enter\n");
3053 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
3054 IWL_DEBUG_TX(priv
, "Aborting flush due to device shutdown\n");
3057 if (iwl_is_rfkill(priv
)) {
3058 IWL_DEBUG_TX(priv
, "Aborting flush due to RF Kill\n");
3063 * mac80211 will not push any more frames for transmit
3064 * until the flush is completed
3067 IWL_DEBUG_MAC80211(priv
, "send flush command\n");
3068 if (iwlagn_txfifo_flush(priv
, IWL_DROP_ALL
)) {
3069 IWL_ERR(priv
, "flush request fail\n");
3073 IWL_DEBUG_MAC80211(priv
, "wait transmit/flush all frames\n");
3074 iwlagn_wait_tx_queue_empty(priv
);
3076 mutex_unlock(&priv
->mutex
);
3077 IWL_DEBUG_MAC80211(priv
, "leave\n");
3080 static void iwlagn_disable_roc(struct iwl_priv
*priv
)
3082 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
3083 struct ieee80211_channel
*chan
= ACCESS_ONCE(priv
->hw
->conf
.channel
);
3085 lockdep_assert_held(&priv
->mutex
);
3087 if (!ctx
->is_active
)
3090 ctx
->staging
.dev_type
= RXON_DEV_TYPE_2STA
;
3091 ctx
->staging
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
3092 iwl_set_rxon_channel(priv
, chan
, ctx
);
3093 iwl_set_flags_for_band(priv
, ctx
, chan
->band
, NULL
);
3095 priv
->_agn
.hw_roc_channel
= NULL
;
3097 iwlagn_commit_rxon(priv
, ctx
);
3099 ctx
->is_active
= false;
3102 static void iwlagn_bg_roc_done(struct work_struct
*work
)
3104 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
3105 _agn
.hw_roc_work
.work
);
3107 mutex_lock(&priv
->mutex
);
3108 ieee80211_remain_on_channel_expired(priv
->hw
);
3109 iwlagn_disable_roc(priv
);
3110 mutex_unlock(&priv
->mutex
);
3113 static int iwl_mac_remain_on_channel(struct ieee80211_hw
*hw
,
3114 struct ieee80211_channel
*channel
,
3115 enum nl80211_channel_type channel_type
,
3118 struct iwl_priv
*priv
= hw
->priv
;
3121 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
3124 if (!(priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
&
3125 BIT(NL80211_IFTYPE_P2P_CLIENT
)))
3128 mutex_lock(&priv
->mutex
);
3130 if (priv
->contexts
[IWL_RXON_CTX_PAN
].is_active
||
3131 test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
3136 priv
->contexts
[IWL_RXON_CTX_PAN
].is_active
= true;
3137 priv
->_agn
.hw_roc_channel
= channel
;
3138 priv
->_agn
.hw_roc_chantype
= channel_type
;
3139 priv
->_agn
.hw_roc_duration
= DIV_ROUND_UP(duration
* 1000, 1024);
3140 iwlagn_commit_rxon(priv
, &priv
->contexts
[IWL_RXON_CTX_PAN
]);
3141 queue_delayed_work(priv
->workqueue
, &priv
->_agn
.hw_roc_work
,
3142 msecs_to_jiffies(duration
+ 20));
3144 msleep(IWL_MIN_SLOT_TIME
); /* TU is almost ms */
3145 ieee80211_ready_on_channel(priv
->hw
);
3148 mutex_unlock(&priv
->mutex
);
3153 static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw
*hw
)
3155 struct iwl_priv
*priv
= hw
->priv
;
3157 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
3160 cancel_delayed_work_sync(&priv
->_agn
.hw_roc_work
);
3162 mutex_lock(&priv
->mutex
);
3163 iwlagn_disable_roc(priv
);
3164 mutex_unlock(&priv
->mutex
);
3169 /*****************************************************************************
3171 * driver setup and teardown
3173 *****************************************************************************/
3175 static void iwl_setup_deferred_work(struct iwl_priv
*priv
)
3177 priv
->workqueue
= create_singlethread_workqueue(DRV_NAME
);
3179 init_waitqueue_head(&priv
->wait_command_queue
);
3181 INIT_WORK(&priv
->restart
, iwl_bg_restart
);
3182 INIT_WORK(&priv
->rx_replenish
, iwl_bg_rx_replenish
);
3183 INIT_WORK(&priv
->beacon_update
, iwl_bg_beacon_update
);
3184 INIT_WORK(&priv
->run_time_calib_work
, iwl_bg_run_time_calib_work
);
3185 INIT_WORK(&priv
->tx_flush
, iwl_bg_tx_flush
);
3186 INIT_WORK(&priv
->bt_full_concurrency
, iwl_bg_bt_full_concurrency
);
3187 INIT_WORK(&priv
->bt_runtime_config
, iwl_bg_bt_runtime_config
);
3188 INIT_DELAYED_WORK(&priv
->_agn
.hw_roc_work
, iwlagn_bg_roc_done
);
3190 iwl_setup_scan_deferred_work(priv
);
3192 if (priv
->cfg
->ops
->lib
->setup_deferred_work
)
3193 priv
->cfg
->ops
->lib
->setup_deferred_work(priv
);
3195 init_timer(&priv
->statistics_periodic
);
3196 priv
->statistics_periodic
.data
= (unsigned long)priv
;
3197 priv
->statistics_periodic
.function
= iwl_bg_statistics_periodic
;
3199 init_timer(&priv
->ucode_trace
);
3200 priv
->ucode_trace
.data
= (unsigned long)priv
;
3201 priv
->ucode_trace
.function
= iwl_bg_ucode_trace
;
3203 init_timer(&priv
->watchdog
);
3204 priv
->watchdog
.data
= (unsigned long)priv
;
3205 priv
->watchdog
.function
= iwl_bg_watchdog
;
3207 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
3208 iwl_irq_tasklet
, (unsigned long)priv
);
3211 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
)
3213 if (priv
->cfg
->ops
->lib
->cancel_deferred_work
)
3214 priv
->cfg
->ops
->lib
->cancel_deferred_work(priv
);
3216 cancel_work_sync(&priv
->run_time_calib_work
);
3217 cancel_work_sync(&priv
->beacon_update
);
3219 iwl_cancel_scan_deferred_work(priv
);
3221 cancel_work_sync(&priv
->bt_full_concurrency
);
3222 cancel_work_sync(&priv
->bt_runtime_config
);
3224 del_timer_sync(&priv
->statistics_periodic
);
3225 del_timer_sync(&priv
->ucode_trace
);
3228 static void iwl_init_hw_rates(struct iwl_priv
*priv
,
3229 struct ieee80211_rate
*rates
)
3233 for (i
= 0; i
< IWL_RATE_COUNT_LEGACY
; i
++) {
3234 rates
[i
].bitrate
= iwl_rates
[i
].ieee
* 5;
3235 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
3236 rates
[i
].hw_value_short
= i
;
3238 if ((i
>= IWL_FIRST_CCK_RATE
) && (i
<= IWL_LAST_CCK_RATE
)) {
3240 * If CCK != 1M then set short preamble rate flag.
3243 (iwl_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
3244 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
3249 static int iwl_init_drv(struct iwl_priv
*priv
)
3253 spin_lock_init(&priv
->sta_lock
);
3254 spin_lock_init(&priv
->hcmd_lock
);
3256 mutex_init(&priv
->mutex
);
3258 priv
->ieee_channels
= NULL
;
3259 priv
->ieee_rates
= NULL
;
3260 priv
->band
= IEEE80211_BAND_2GHZ
;
3262 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
3263 priv
->current_ht_config
.smps
= IEEE80211_SMPS_STATIC
;
3264 priv
->missed_beacon_threshold
= IWL_MISSED_BEACON_THRESHOLD_DEF
;
3265 priv
->_agn
.agg_tids_count
= 0;
3267 /* initialize force reset */
3268 priv
->force_reset
[IWL_RF_RESET
].reset_duration
=
3269 IWL_DELAY_NEXT_FORCE_RF_RESET
;
3270 priv
->force_reset
[IWL_FW_RESET
].reset_duration
=
3271 IWL_DELAY_NEXT_FORCE_FW_RELOAD
;
3273 priv
->rx_statistics_jiffies
= jiffies
;
3275 /* Choose which receivers/antennas to use */
3276 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
3277 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
,
3278 &priv
->contexts
[IWL_RXON_CTX_BSS
]);
3280 iwl_init_scan_params(priv
);
3283 if (priv
->cfg
->bt_params
&&
3284 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
3285 priv
->kill_ack_mask
= IWLAGN_BT_KILL_ACK_MASK_DEFAULT
;
3286 priv
->kill_cts_mask
= IWLAGN_BT_KILL_CTS_MASK_DEFAULT
;
3287 priv
->bt_valid
= IWLAGN_BT_ALL_VALID_MSK
;
3288 priv
->bt_on_thresh
= BT_ON_THRESHOLD_DEF
;
3289 priv
->bt_duration
= BT_DURATION_LIMIT_DEF
;
3290 priv
->dynamic_frag_thresh
= BT_FRAG_THRESHOLD_DEF
;
3293 ret
= iwl_init_channel_map(priv
);
3295 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
3299 ret
= iwlcore_init_geos(priv
);
3301 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
3302 goto err_free_channel_map
;
3304 iwl_init_hw_rates(priv
, priv
->ieee_rates
);
3308 err_free_channel_map
:
3309 iwl_free_channel_map(priv
);
3314 static void iwl_uninit_drv(struct iwl_priv
*priv
)
3316 iwl_calib_free_results(priv
);
3317 iwlcore_free_geos(priv
);
3318 iwl_free_channel_map(priv
);
3319 kfree(priv
->scan_cmd
);
3320 kfree(priv
->beacon_cmd
);
3323 struct ieee80211_ops iwlagn_hw_ops
= {
3324 .tx
= iwlagn_mac_tx
,
3325 .start
= iwlagn_mac_start
,
3326 .stop
= iwlagn_mac_stop
,
3327 .add_interface
= iwl_mac_add_interface
,
3328 .remove_interface
= iwl_mac_remove_interface
,
3329 .change_interface
= iwl_mac_change_interface
,
3330 .config
= iwlagn_mac_config
,
3331 .configure_filter
= iwlagn_configure_filter
,
3332 .set_key
= iwlagn_mac_set_key
,
3333 .update_tkip_key
= iwlagn_mac_update_tkip_key
,
3334 .conf_tx
= iwl_mac_conf_tx
,
3335 .bss_info_changed
= iwlagn_bss_info_changed
,
3336 .ampdu_action
= iwlagn_mac_ampdu_action
,
3337 .hw_scan
= iwl_mac_hw_scan
,
3338 .sta_notify
= iwlagn_mac_sta_notify
,
3339 .sta_add
= iwlagn_mac_sta_add
,
3340 .sta_remove
= iwl_mac_sta_remove
,
3341 .channel_switch
= iwlagn_mac_channel_switch
,
3342 .flush
= iwlagn_mac_flush
,
3343 .tx_last_beacon
= iwl_mac_tx_last_beacon
,
3344 .remain_on_channel
= iwl_mac_remain_on_channel
,
3345 .cancel_remain_on_channel
= iwl_mac_cancel_remain_on_channel
,
3346 .offchannel_tx
= iwl_mac_offchannel_tx
,
3347 .offchannel_tx_cancel_wait
= iwl_mac_offchannel_tx_cancel_wait
,
3348 CFG80211_TESTMODE_CMD(iwl_testmode_cmd
)
3349 CFG80211_TESTMODE_DUMP(iwl_testmode_dump
)
3352 static u32
iwl_hw_detect(struct iwl_priv
*priv
)
3356 pci_read_config_byte(priv
->pci_dev
, PCI_REVISION_ID
, &rev_id
);
3357 IWL_DEBUG_INFO(priv
, "HW Revision ID = 0x%X\n", rev_id
);
3358 return iwl_read32(priv
, CSR_HW_REV
);
3361 static int iwl_set_hw_params(struct iwl_priv
*priv
)
3363 priv
->hw_params
.max_rxq_size
= RX_QUEUE_SIZE
;
3364 priv
->hw_params
.max_rxq_log
= RX_QUEUE_SIZE_LOG
;
3365 if (iwlagn_mod_params
.amsdu_size_8K
)
3366 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_8K
);
3368 priv
->hw_params
.rx_page_order
= get_order(IWL_RX_BUF_SIZE_4K
);
3370 priv
->hw_params
.max_beacon_itrvl
= IWL_MAX_UCODE_BEACON_INTERVAL
;
3372 if (iwlagn_mod_params
.disable_11n
)
3373 priv
->cfg
->sku
&= ~EEPROM_SKU_CAP_11N_ENABLE
;
3375 /* Device-specific setup */
3376 return priv
->cfg
->ops
->lib
->set_hw_params(priv
);
3379 static const u8 iwlagn_bss_ac_to_fifo
[] = {
3386 static const u8 iwlagn_bss_ac_to_queue
[] = {
3390 static const u8 iwlagn_pan_ac_to_fifo
[] = {
3391 IWL_TX_FIFO_VO_IPAN
,
3392 IWL_TX_FIFO_VI_IPAN
,
3393 IWL_TX_FIFO_BE_IPAN
,
3394 IWL_TX_FIFO_BK_IPAN
,
3397 static const u8 iwlagn_pan_ac_to_queue
[] = {
3401 /* This function both allocates and initializes hw and priv. */
3402 static struct ieee80211_hw
*iwl_alloc_all(struct iwl_cfg
*cfg
)
3404 struct iwl_priv
*priv
;
3405 /* mac80211 allocates memory for this device instance, including
3406 * space for this driver's private structure */
3407 struct ieee80211_hw
*hw
;
3409 hw
= ieee80211_alloc_hw(sizeof(struct iwl_priv
), &iwlagn_hw_ops
);
3411 pr_err("%s: Can not allocate network device\n",
3423 static void iwl_init_context(struct iwl_priv
*priv
)
3428 * The default context is always valid,
3429 * more may be discovered when firmware
3432 priv
->valid_contexts
= BIT(IWL_RXON_CTX_BSS
);
3434 for (i
= 0; i
< NUM_IWL_RXON_CTX
; i
++)
3435 priv
->contexts
[i
].ctxid
= i
;
3437 priv
->contexts
[IWL_RXON_CTX_BSS
].always_active
= true;
3438 priv
->contexts
[IWL_RXON_CTX_BSS
].is_active
= true;
3439 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_cmd
= REPLY_RXON
;
3440 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_timing_cmd
= REPLY_RXON_TIMING
;
3441 priv
->contexts
[IWL_RXON_CTX_BSS
].rxon_assoc_cmd
= REPLY_RXON_ASSOC
;
3442 priv
->contexts
[IWL_RXON_CTX_BSS
].qos_cmd
= REPLY_QOS_PARAM
;
3443 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_sta_id
= IWL_AP_ID
;
3444 priv
->contexts
[IWL_RXON_CTX_BSS
].wep_key_cmd
= REPLY_WEPKEY
;
3445 priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_fifo
= iwlagn_bss_ac_to_fifo
;
3446 priv
->contexts
[IWL_RXON_CTX_BSS
].ac_to_queue
= iwlagn_bss_ac_to_queue
;
3447 priv
->contexts
[IWL_RXON_CTX_BSS
].exclusive_interface_modes
=
3448 BIT(NL80211_IFTYPE_ADHOC
);
3449 priv
->contexts
[IWL_RXON_CTX_BSS
].interface_modes
=
3450 BIT(NL80211_IFTYPE_STATION
);
3451 priv
->contexts
[IWL_RXON_CTX_BSS
].ap_devtype
= RXON_DEV_TYPE_AP
;
3452 priv
->contexts
[IWL_RXON_CTX_BSS
].ibss_devtype
= RXON_DEV_TYPE_IBSS
;
3453 priv
->contexts
[IWL_RXON_CTX_BSS
].station_devtype
= RXON_DEV_TYPE_ESS
;
3454 priv
->contexts
[IWL_RXON_CTX_BSS
].unused_devtype
= RXON_DEV_TYPE_ESS
;
3456 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_cmd
= REPLY_WIPAN_RXON
;
3457 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_timing_cmd
=
3458 REPLY_WIPAN_RXON_TIMING
;
3459 priv
->contexts
[IWL_RXON_CTX_PAN
].rxon_assoc_cmd
=
3460 REPLY_WIPAN_RXON_ASSOC
;
3461 priv
->contexts
[IWL_RXON_CTX_PAN
].qos_cmd
= REPLY_WIPAN_QOS_PARAM
;
3462 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_sta_id
= IWL_AP_ID_PAN
;
3463 priv
->contexts
[IWL_RXON_CTX_PAN
].wep_key_cmd
= REPLY_WIPAN_WEPKEY
;
3464 priv
->contexts
[IWL_RXON_CTX_PAN
].bcast_sta_id
= IWLAGN_PAN_BCAST_ID
;
3465 priv
->contexts
[IWL_RXON_CTX_PAN
].station_flags
= STA_FLG_PAN_STATION
;
3466 priv
->contexts
[IWL_RXON_CTX_PAN
].ac_to_fifo
= iwlagn_pan_ac_to_fifo
;
3467 priv
->contexts
[IWL_RXON_CTX_PAN
].ac_to_queue
= iwlagn_pan_ac_to_queue
;
3468 priv
->contexts
[IWL_RXON_CTX_PAN
].mcast_queue
= IWL_IPAN_MCAST_QUEUE
;
3469 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
=
3470 BIT(NL80211_IFTYPE_STATION
) | BIT(NL80211_IFTYPE_AP
);
3471 #ifdef CONFIG_IWL_P2P
3472 priv
->contexts
[IWL_RXON_CTX_PAN
].interface_modes
|=
3473 BIT(NL80211_IFTYPE_P2P_CLIENT
) | BIT(NL80211_IFTYPE_P2P_GO
);
3475 priv
->contexts
[IWL_RXON_CTX_PAN
].ap_devtype
= RXON_DEV_TYPE_CP
;
3476 priv
->contexts
[IWL_RXON_CTX_PAN
].station_devtype
= RXON_DEV_TYPE_2STA
;
3477 priv
->contexts
[IWL_RXON_CTX_PAN
].unused_devtype
= RXON_DEV_TYPE_P2P
;
3479 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
3482 int iwl_probe(void *bus_specific
, struct iwl_bus_ops
*bus_ops
,
3483 struct iwl_cfg
*cfg
)
3486 struct iwl_priv
*priv
;
3487 struct ieee80211_hw
*hw
;
3488 u16 pci_cmd
, num_mac
;
3491 /************************
3492 * 1. Allocating HW data
3493 ************************/
3494 /* TODO: remove this nasty hack when PCI encapsulation is done
3495 * assumes that struct pci_dev * is at the very beginning of whatever
3496 * is pointed by bus_specific */
3497 unsigned long *ppdev
= bus_specific
;
3498 struct pci_dev
*pdev
= (struct pci_dev
*) *ppdev
;
3500 hw
= iwl_alloc_all(cfg
);
3506 priv
->bus
.priv
= priv
;
3507 priv
->bus
.bus_specific
= bus_specific
;
3508 priv
->bus
.ops
= bus_ops
;
3509 priv
->bus
.ops
->set_drv_data(&priv
->bus
, priv
);
3511 /* At this point both hw and priv are allocated. */
3513 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
3515 IWL_DEBUG_INFO(priv
, "*** LOAD DRIVER ***\n");
3517 priv
->pci_dev
= pdev
;
3518 priv
->inta_mask
= CSR_INI_SET_MASK
;
3520 /* is antenna coupling more than 35dB ? */
3521 priv
->bt_ant_couple_ok
=
3522 (iwlagn_ant_coupling
> IWL_BT_ANTENNA_COUPLING_THRESHOLD
) ?
3525 /* enable/disable bt channel inhibition */
3526 priv
->bt_ch_announce
= iwlagn_bt_ch_announce
;
3527 IWL_DEBUG_INFO(priv
, "BT channel inhibition is %s\n",
3528 (priv
->bt_ch_announce
) ? "On" : "Off");
3530 if (iwl_alloc_traffic_mem(priv
))
3531 IWL_ERR(priv
, "Not enough memory to generate traffic log\n");
3533 /**************************
3534 * 2. Initializing PCI bus
3535 **************************/
3536 pci_disable_link_state(pdev
, PCIE_LINK_STATE_L0S
| PCIE_LINK_STATE_L1
|
3537 PCIE_LINK_STATE_CLKPM
);
3539 if (pci_enable_device(pdev
)) {
3541 goto out_ieee80211_free_hw
;
3544 pci_set_master(pdev
);
3546 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(36));
3548 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(36));
3550 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
3552 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(32));
3553 /* both attempts failed: */
3555 IWL_WARN(priv
, "No suitable DMA available.\n");
3556 goto out_pci_disable_device
;
3560 err
= pci_request_regions(pdev
, DRV_NAME
);
3562 goto out_pci_disable_device
;
3564 /***********************
3565 * 3. Read REV register
3566 ***********************/
3567 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
3568 if (!priv
->hw_base
) {
3570 goto out_pci_release_regions
;
3573 IWL_DEBUG_INFO(priv
, "pci_resource_len = 0x%08llx\n",
3574 (unsigned long long) pci_resource_len(pdev
, 0));
3575 IWL_DEBUG_INFO(priv
, "pci_resource_base = %p\n", priv
->hw_base
);
3577 /* these spin locks will be used in apm_ops.init and EEPROM access
3578 * we should init now
3580 spin_lock_init(&priv
->reg_lock
);
3581 spin_lock_init(&priv
->lock
);
3584 * stop and reset the on-board processor just in case it is in a
3585 * strange state ... like being left stranded by a primary kernel
3586 * and this is now the kdump kernel trying to start up
3588 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
3590 hw_rev
= iwl_hw_detect(priv
);
3591 IWL_INFO(priv
, "Detected %s, REV=0x%X\n",
3592 priv
->cfg
->name
, hw_rev
);
3594 /* We disable the RETRY_TIMEOUT register (0x41) to keep
3595 * PCI Tx retries from interfering with C3 CPU state */
3596 pci_write_config_byte(pdev
, PCI_CFG_RETRY_TIMEOUT
, 0x00);
3598 if (iwl_prepare_card_hw(priv
)) {
3599 IWL_WARN(priv
, "Failed, HW not ready\n");
3606 /* Read the EEPROM */
3607 err
= iwl_eeprom_init(priv
, hw_rev
);
3609 IWL_ERR(priv
, "Unable to init EEPROM\n");
3612 err
= iwl_eeprom_check_version(priv
);
3614 goto out_free_eeprom
;
3616 err
= iwl_eeprom_check_sku(priv
);
3618 goto out_free_eeprom
;
3620 /* extract MAC Address */
3621 iwl_eeprom_get_mac(priv
, priv
->addresses
[0].addr
);
3622 IWL_DEBUG_INFO(priv
, "MAC address: %pM\n", priv
->addresses
[0].addr
);
3623 priv
->hw
->wiphy
->addresses
= priv
->addresses
;
3624 priv
->hw
->wiphy
->n_addresses
= 1;
3625 num_mac
= iwl_eeprom_query16(priv
, EEPROM_NUM_MAC_ADDRESS
);
3627 memcpy(priv
->addresses
[1].addr
, priv
->addresses
[0].addr
,
3629 priv
->addresses
[1].addr
[5]++;
3630 priv
->hw
->wiphy
->n_addresses
++;
3633 /* initialize all valid contexts */
3634 iwl_init_context(priv
);
3636 /************************
3637 * 5. Setup HW constants
3638 ************************/
3639 if (iwl_set_hw_params(priv
)) {
3640 IWL_ERR(priv
, "failed to set hw parameters\n");
3641 goto out_free_eeprom
;
3644 /*******************
3646 *******************/
3648 err
= iwl_init_drv(priv
);
3650 goto out_free_eeprom
;
3651 /* At this point both hw and priv are initialized. */
3653 /********************
3655 ********************/
3656 pci_enable_msi(priv
->pci_dev
);
3658 iwl_alloc_isr_ict(priv
);
3660 err
= request_irq(priv
->pci_dev
->irq
, iwl_isr_ict
,
3661 IRQF_SHARED
, DRV_NAME
, priv
);
3663 IWL_ERR(priv
, "Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
3664 goto out_disable_msi
;
3667 iwl_setup_deferred_work(priv
);
3668 iwl_setup_rx_handlers(priv
);
3669 iwl_testmode_init(priv
);
3671 /*********************************************
3672 * 8. Enable interrupts and read RFKILL state
3673 *********************************************/
3675 /* enable rfkill interrupt: hw bug w/a */
3676 pci_read_config_word(priv
->pci_dev
, PCI_COMMAND
, &pci_cmd
);
3677 if (pci_cmd
& PCI_COMMAND_INTX_DISABLE
) {
3678 pci_cmd
&= ~PCI_COMMAND_INTX_DISABLE
;
3679 pci_write_config_word(priv
->pci_dev
, PCI_COMMAND
, pci_cmd
);
3682 iwl_enable_rfkill_int(priv
);
3684 /* If platform's RF_KILL switch is NOT set to KILL */
3685 if (iwl_read32(priv
, CSR_GP_CNTRL
) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
3686 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3688 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3690 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
3691 test_bit(STATUS_RF_KILL_HW
, &priv
->status
));
3693 iwl_power_initialize(priv
);
3694 iwl_tt_initialize(priv
);
3696 init_completion(&priv
->_agn
.firmware_loading_complete
);
3698 err
= iwl_request_firmware(priv
, true);
3700 goto out_destroy_workqueue
;
3704 out_destroy_workqueue
:
3705 destroy_workqueue(priv
->workqueue
);
3706 priv
->workqueue
= NULL
;
3707 free_irq(priv
->pci_dev
->irq
, priv
);
3709 iwl_free_isr_ict(priv
);
3710 pci_disable_msi(priv
->pci_dev
);
3711 iwl_uninit_drv(priv
);
3713 iwl_eeprom_free(priv
);
3715 pci_iounmap(pdev
, priv
->hw_base
);
3716 out_pci_release_regions
:
3717 priv
->bus
.ops
->set_drv_data(&priv
->bus
, NULL
);
3718 pci_release_regions(pdev
);
3719 out_pci_disable_device
:
3720 pci_disable_device(pdev
);
3721 out_ieee80211_free_hw
:
3722 iwl_free_traffic_mem(priv
);
3723 ieee80211_free_hw(priv
->hw
);
3728 void __devexit
iwl_remove(struct iwl_priv
* priv
)
3730 struct pci_dev
*pdev
= priv
->pci_dev
;
3731 unsigned long flags
;
3733 wait_for_completion(&priv
->_agn
.firmware_loading_complete
);
3735 IWL_DEBUG_INFO(priv
, "*** UNLOAD DRIVER ***\n");
3737 iwl_dbgfs_unregister(priv
);
3738 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl_attribute_group
);
3740 /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
3741 * to be called and iwl_down since we are removing the device
3742 * we need to set STATUS_EXIT_PENDING bit.
3744 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3746 iwl_testmode_cleanup(priv
);
3747 iwl_leds_exit(priv
);
3749 if (priv
->mac80211_registered
) {
3750 ieee80211_unregister_hw(priv
->hw
);
3751 priv
->mac80211_registered
= 0;
3754 /* Reset to low power before unloading driver. */
3759 /* make sure we flush any pending irq or
3760 * tasklet for the driver
3762 spin_lock_irqsave(&priv
->lock
, flags
);
3763 iwl_disable_interrupts(priv
);
3764 spin_unlock_irqrestore(&priv
->lock
, flags
);
3766 iwl_synchronize_irq(priv
);
3768 iwl_dealloc_ucode_pci(priv
);
3771 iwlagn_rx_queue_free(priv
, &priv
->rxq
);
3772 iwlagn_hw_txq_ctx_free(priv
);
3774 iwl_eeprom_free(priv
);
3777 /*netif_stop_queue(dev); */
3778 flush_workqueue(priv
->workqueue
);
3780 /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
3781 * priv->workqueue... so we can't take down the workqueue
3783 destroy_workqueue(priv
->workqueue
);
3784 priv
->workqueue
= NULL
;
3785 iwl_free_traffic_mem(priv
);
3787 free_irq(priv
->pci_dev
->irq
, priv
);
3788 pci_disable_msi(priv
->pci_dev
);
3789 pci_iounmap(pdev
, priv
->hw_base
);
3790 pci_release_regions(pdev
);
3791 pci_disable_device(pdev
);
3792 priv
->bus
.ops
->set_drv_data(&priv
->bus
, NULL
);
3794 iwl_uninit_drv(priv
);
3796 iwl_free_isr_ict(priv
);
3798 dev_kfree_skb(priv
->beacon_skb
);
3800 ieee80211_free_hw(priv
->hw
);
3804 /*****************************************************************************
3806 * driver and module entry point
3808 *****************************************************************************/
3809 static int __init
iwl_init(void)
3813 pr_info(DRV_DESCRIPTION
", " DRV_VERSION
"\n");
3814 pr_info(DRV_COPYRIGHT
"\n");
3816 ret
= iwlagn_rate_control_register();
3818 pr_err("Unable to register rate control algorithm: %d\n", ret
);
3822 ret
= iwl_pci_register_driver();
3825 goto error_register
;
3829 iwlagn_rate_control_unregister();
3833 static void __exit
iwl_exit(void)
3835 iwl_pci_unregister_driver();
3836 iwlagn_rate_control_unregister();
3839 module_exit(iwl_exit
);
3840 module_init(iwl_init
);
3842 #ifdef CONFIG_IWLWIFI_DEBUG
3843 module_param_named(debug
, iwl_debug_level
, uint
, S_IRUGO
| S_IWUSR
);
3844 MODULE_PARM_DESC(debug
, "debug output mask");
3847 module_param_named(swcrypto
, iwlagn_mod_params
.sw_crypto
, int, S_IRUGO
);
3848 MODULE_PARM_DESC(swcrypto
, "using crypto in software (default 0 [hardware])");
3849 module_param_named(queues_num
, iwlagn_mod_params
.num_of_queues
, int, S_IRUGO
);
3850 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
3851 module_param_named(11n_disable
, iwlagn_mod_params
.disable_11n
, int, S_IRUGO
);
3852 MODULE_PARM_DESC(11n_disable
, "disable 11n functionality");
3853 module_param_named(amsdu_size_8K
, iwlagn_mod_params
.amsdu_size_8K
,
3855 MODULE_PARM_DESC(amsdu_size_8K
, "enable 8K amsdu size");
3856 module_param_named(fw_restart
, iwlagn_mod_params
.restart_fw
, int, S_IRUGO
);
3857 MODULE_PARM_DESC(fw_restart
, "restart firmware in case of error");
3859 module_param_named(ucode_alternative
, iwlagn_wanted_ucode_alternative
, int,
3861 MODULE_PARM_DESC(ucode_alternative
,
3862 "specify ucode alternative to use from ucode file");
3864 module_param_named(antenna_coupling
, iwlagn_ant_coupling
, int, S_IRUGO
);
3865 MODULE_PARM_DESC(antenna_coupling
,
3866 "specify antenna coupling in dB (defualt: 0 dB)");
3868 module_param_named(bt_ch_inhibition
, iwlagn_bt_ch_announce
, bool, S_IRUGO
);
3869 MODULE_PARM_DESC(bt_ch_inhibition
,
3870 "Disable BT channel inhibition (default: enable)");
3872 module_param_named(plcp_check
, iwlagn_mod_params
.plcp_check
, bool, S_IRUGO
);
3873 MODULE_PARM_DESC(plcp_check
, "Check plcp health (default: 1 [enabled])");
3875 module_param_named(ack_check
, iwlagn_mod_params
.ack_check
, bool, S_IRUGO
);
3876 MODULE_PARM_DESC(ack_check
, "Check ack health (default: 0 [disabled])");
3879 * set bt_coex_active to true, uCode will do kill/defer
3880 * every time the priority line is asserted (BT is sending signals on the
3881 * priority line in the PCIx).
3882 * set bt_coex_active to false, uCode will ignore the BT activity and
3883 * perform the normal operation
3885 * User might experience transmit issue on some platform due to WiFi/BT
3886 * co-exist problem. The possible behaviors are:
3887 * Able to scan and finding all the available AP
3888 * Not able to associate with any AP
3889 * On those platforms, WiFi communication can be restored by set
3890 * "bt_coex_active" module parameter to "false"
3892 * default: bt_coex_active = true (BT_COEX_ENABLE)
3894 module_param_named(bt_coex_active
, iwlagn_mod_params
.bt_coex_active
,
3896 MODULE_PARM_DESC(bt_coex_active
, "enable wifi/bt co-exist (default: enable)");
3898 module_param_named(led_mode
, iwlagn_mod_params
.led_mode
, int, S_IRUGO
);
3899 MODULE_PARM_DESC(led_mode
, "0=system default, "
3900 "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)");
3903 * For now, keep using power level 1 instead of automatically
3906 module_param_named(no_sleep_autoadjust
, iwlagn_mod_params
.no_sleep_autoadjust
,
3908 MODULE_PARM_DESC(no_sleep_autoadjust
,
3909 "don't automatically adjust sleep level "
3910 "according to maximum network latency (default: true)");