1 /******************************************************************************
3 * Copyright(c) 2003 - 2010 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 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/init.h>
33 #include <linux/pci.h>
34 #include <linux/dma-mapping.h>
35 #include <linux/delay.h>
36 #include <linux/sched.h>
37 #include <linux/skbuff.h>
38 #include <linux/netdevice.h>
39 #include <linux/wireless.h>
40 #include <linux/firmware.h>
41 #include <linux/etherdevice.h>
42 #include <linux/if_arp.h>
44 #include <net/mac80211.h>
46 #include <asm/div64.h>
48 #define DRV_NAME "iwlagn"
50 #include "iwl-eeprom.h"
54 #include "iwl-helpers.h"
56 #include "iwl-calib.h"
60 /******************************************************************************
64 ******************************************************************************/
67 * module name, copyright, version, etc.
69 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
71 #ifdef CONFIG_IWLWIFI_DEBUG
77 #define DRV_VERSION IWLWIFI_VERSION VD
80 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
81 MODULE_VERSION(DRV_VERSION
);
82 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
83 MODULE_LICENSE("GPL");
84 MODULE_ALIAS("iwl4965");
86 /*************** STATION TABLE MANAGEMENT ****
87 * mac80211 should be examined to determine if sta_info is duplicating
88 * the functionality provided here
91 /**************************************************************/
94 * iwl_commit_rxon - commit staging_rxon to hardware
96 * The RXON command in staging_rxon is committed to the hardware and
97 * the active_rxon structure is updated with the new data. This
98 * function correctly transitions out of the RXON_ASSOC_MSK state if
99 * a HW tune is required based on the RXON structure changes.
101 int iwl_commit_rxon(struct iwl_priv
*priv
)
103 /* cast away the const for active_rxon in this function */
104 struct iwl_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
107 !!(priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
);
109 if (!iwl_is_alive(priv
))
112 /* always get timestamp with Rx frame */
113 priv
->staging_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
115 ret
= iwl_check_rxon_cmd(priv
);
117 IWL_ERR(priv
, "Invalid RXON configuration. Not committing.\n");
122 * receive commit_rxon request
123 * abort any previous channel switch if still in process
125 if (priv
->switch_rxon
.switch_in_progress
&&
126 (priv
->switch_rxon
.channel
!= priv
->staging_rxon
.channel
)) {
127 IWL_DEBUG_11H(priv
, "abort channel switch on %d\n",
128 le16_to_cpu(priv
->switch_rxon
.channel
));
129 priv
->switch_rxon
.switch_in_progress
= false;
132 /* If we don't need to send a full RXON, we can use
133 * iwl_rxon_assoc_cmd which is used to reconfigure filter
134 * and other flags for the current radio configuration. */
135 if (!iwl_full_rxon_required(priv
)) {
136 ret
= iwl_send_rxon_assoc(priv
);
138 IWL_ERR(priv
, "Error setting RXON_ASSOC (%d)\n", ret
);
142 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
143 iwl_print_rx_config_cmd(priv
);
147 /* station table will be cleared */
148 priv
->assoc_station_added
= 0;
150 /* If we are currently associated and the new config requires
151 * an RXON_ASSOC and the new config wants the associated mask enabled,
152 * we must clear the associated from the active configuration
153 * before we apply the new config */
154 if (iwl_is_associated(priv
) && new_assoc
) {
155 IWL_DEBUG_INFO(priv
, "Toggling associated bit on current RXON\n");
156 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
158 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
159 sizeof(struct iwl_rxon_cmd
),
162 /* If the mask clearing failed then we set
163 * active_rxon back to what it was previously */
165 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
166 IWL_ERR(priv
, "Error clearing ASSOC_MSK (%d)\n", ret
);
171 IWL_DEBUG_INFO(priv
, "Sending RXON\n"
172 "* with%s RXON_FILTER_ASSOC_MSK\n"
175 (new_assoc
? "" : "out"),
176 le16_to_cpu(priv
->staging_rxon
.channel
),
177 priv
->staging_rxon
.bssid_addr
);
179 iwl_set_rxon_hwcrypto(priv
, !priv
->cfg
->mod_params
->sw_crypto
);
181 /* Apply the new configuration
182 * RXON unassoc clears the station table in uCode, send it before
183 * we add the bcast station. If assoc bit is set, we will send RXON
184 * after having added the bcast and bssid station.
187 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
188 sizeof(struct iwl_rxon_cmd
), &priv
->staging_rxon
);
190 IWL_ERR(priv
, "Error setting new RXON (%d)\n", ret
);
193 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
196 iwl_clear_stations_table(priv
);
198 priv
->start_calib
= 0;
200 /* Add the broadcast address so we can send broadcast frames */
201 priv
->cfg
->ops
->lib
->add_bcast_station(priv
);
204 /* If we have set the ASSOC_MSK and we are in BSS mode then
205 * add the IWL_AP_ID to the station rate table */
207 if (priv
->iw_mode
== NL80211_IFTYPE_STATION
) {
208 ret
= iwl_rxon_add_station(priv
,
209 priv
->active_rxon
.bssid_addr
, 1);
210 if (ret
== IWL_INVALID_STATION
) {
212 "Error adding AP address for TX.\n");
215 priv
->assoc_station_added
= 1;
216 if (priv
->default_wep_key
&&
217 iwl_send_static_wepkey_cmd(priv
, 0))
219 "Could not send WEP static key.\n");
223 * allow CTS-to-self if possible for new association.
224 * this is relevant only for 5000 series and up,
225 * but will not damage 4965
227 priv
->staging_rxon
.flags
|= RXON_FLG_SELF_CTS_EN
;
229 /* Apply the new configuration
230 * RXON assoc doesn't clear the station table in uCode,
232 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
233 sizeof(struct iwl_rxon_cmd
), &priv
->staging_rxon
);
235 IWL_ERR(priv
, "Error setting new RXON (%d)\n", ret
);
238 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
240 iwl_print_rx_config_cmd(priv
);
242 iwl_init_sensitivity(priv
);
244 /* If we issue a new RXON command which required a tune then we must
245 * send a new TXPOWER command or we won't be able to Tx any frames */
246 ret
= iwl_set_tx_power(priv
, priv
->tx_power_user_lmt
, true);
248 IWL_ERR(priv
, "Error sending TX power (%d)\n", ret
);
255 void iwl_update_chain_flags(struct iwl_priv
*priv
)
258 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
259 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
260 iwlcore_commit_rxon(priv
);
263 static void iwl_clear_free_frames(struct iwl_priv
*priv
)
265 struct list_head
*element
;
267 IWL_DEBUG_INFO(priv
, "%d frames on pre-allocated heap on clear.\n",
270 while (!list_empty(&priv
->free_frames
)) {
271 element
= priv
->free_frames
.next
;
273 kfree(list_entry(element
, struct iwl_frame
, list
));
274 priv
->frames_count
--;
277 if (priv
->frames_count
) {
278 IWL_WARN(priv
, "%d frames still in use. Did we lose one?\n",
280 priv
->frames_count
= 0;
284 static struct iwl_frame
*iwl_get_free_frame(struct iwl_priv
*priv
)
286 struct iwl_frame
*frame
;
287 struct list_head
*element
;
288 if (list_empty(&priv
->free_frames
)) {
289 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
291 IWL_ERR(priv
, "Could not allocate frame!\n");
295 priv
->frames_count
++;
299 element
= priv
->free_frames
.next
;
301 return list_entry(element
, struct iwl_frame
, list
);
304 static void iwl_free_frame(struct iwl_priv
*priv
, struct iwl_frame
*frame
)
306 memset(frame
, 0, sizeof(*frame
));
307 list_add(&frame
->list
, &priv
->free_frames
);
310 static u32
iwl_fill_beacon_frame(struct iwl_priv
*priv
,
311 struct ieee80211_hdr
*hdr
,
314 if (!iwl_is_associated(priv
) || !priv
->ibss_beacon
||
315 ((priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) &&
316 (priv
->iw_mode
!= NL80211_IFTYPE_AP
)))
319 if (priv
->ibss_beacon
->len
> left
)
322 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
324 return priv
->ibss_beacon
->len
;
327 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
328 static void iwl_set_beacon_tim(struct iwl_priv
*priv
,
329 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
,
330 u8
*beacon
, u32 frame_size
)
333 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)beacon
;
336 * The index is relative to frame start but we start looking at the
337 * variable-length part of the beacon.
339 tim_idx
= mgmt
->u
.beacon
.variable
- beacon
;
341 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
342 while ((tim_idx
< (frame_size
- 2)) &&
343 (beacon
[tim_idx
] != WLAN_EID_TIM
))
344 tim_idx
+= beacon
[tim_idx
+1] + 2;
346 /* If TIM field was found, set variables */
347 if ((tim_idx
< (frame_size
- 1)) && (beacon
[tim_idx
] == WLAN_EID_TIM
)) {
348 tx_beacon_cmd
->tim_idx
= cpu_to_le16(tim_idx
);
349 tx_beacon_cmd
->tim_size
= beacon
[tim_idx
+1];
351 IWL_WARN(priv
, "Unable to find TIM Element in beacon\n");
354 static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv
*priv
,
355 struct iwl_frame
*frame
)
357 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
;
362 * We have to set up the TX command, the TX Beacon command, and the
366 /* Initialize memory */
367 tx_beacon_cmd
= &frame
->u
.beacon
;
368 memset(tx_beacon_cmd
, 0, sizeof(*tx_beacon_cmd
));
370 /* Set up TX beacon contents */
371 frame_size
= iwl_fill_beacon_frame(priv
, tx_beacon_cmd
->frame
,
372 sizeof(frame
->u
) - sizeof(*tx_beacon_cmd
));
373 if (WARN_ON_ONCE(frame_size
> MAX_MPDU_SIZE
))
376 /* Set up TX command fields */
377 tx_beacon_cmd
->tx
.len
= cpu_to_le16((u16
)frame_size
);
378 tx_beacon_cmd
->tx
.sta_id
= priv
->hw_params
.bcast_sta_id
;
379 tx_beacon_cmd
->tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
380 tx_beacon_cmd
->tx
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
|
381 TX_CMD_FLG_TSF_MSK
| TX_CMD_FLG_STA_RATE_MSK
;
383 /* Set up TX beacon command fields */
384 iwl_set_beacon_tim(priv
, tx_beacon_cmd
, (u8
*)tx_beacon_cmd
->frame
,
387 /* Set up packet rate and flags */
388 rate
= iwl_rate_get_lowest_plcp(priv
);
389 priv
->mgmt_tx_ant
= iwl_toggle_tx_ant(priv
, priv
->mgmt_tx_ant
);
390 rate_flags
= iwl_ant_idx_to_flags(priv
->mgmt_tx_ant
);
391 if ((rate
>= IWL_FIRST_CCK_RATE
) && (rate
<= IWL_LAST_CCK_RATE
))
392 rate_flags
|= RATE_MCS_CCK_MSK
;
393 tx_beacon_cmd
->tx
.rate_n_flags
= iwl_hw_set_rate_n_flags(rate
,
396 return sizeof(*tx_beacon_cmd
) + frame_size
;
398 static int iwl_send_beacon_cmd(struct iwl_priv
*priv
)
400 struct iwl_frame
*frame
;
401 unsigned int frame_size
;
404 frame
= iwl_get_free_frame(priv
);
406 IWL_ERR(priv
, "Could not obtain free frame buffer for beacon "
411 frame_size
= iwl_hw_get_beacon_cmd(priv
, frame
);
413 IWL_ERR(priv
, "Error configuring the beacon command\n");
414 iwl_free_frame(priv
, frame
);
418 rc
= iwl_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
421 iwl_free_frame(priv
, frame
);
426 static inline dma_addr_t
iwl_tfd_tb_get_addr(struct iwl_tfd
*tfd
, u8 idx
)
428 struct iwl_tfd_tb
*tb
= &tfd
->tbs
[idx
];
430 dma_addr_t addr
= get_unaligned_le32(&tb
->lo
);
431 if (sizeof(dma_addr_t
) > sizeof(u32
))
433 ((dma_addr_t
)(le16_to_cpu(tb
->hi_n_len
) & 0xF) << 16) << 16;
438 static inline u16
iwl_tfd_tb_get_len(struct iwl_tfd
*tfd
, u8 idx
)
440 struct iwl_tfd_tb
*tb
= &tfd
->tbs
[idx
];
442 return le16_to_cpu(tb
->hi_n_len
) >> 4;
445 static inline void iwl_tfd_set_tb(struct iwl_tfd
*tfd
, u8 idx
,
446 dma_addr_t addr
, u16 len
)
448 struct iwl_tfd_tb
*tb
= &tfd
->tbs
[idx
];
449 u16 hi_n_len
= len
<< 4;
451 put_unaligned_le32(addr
, &tb
->lo
);
452 if (sizeof(dma_addr_t
) > sizeof(u32
))
453 hi_n_len
|= ((addr
>> 16) >> 16) & 0xF;
455 tb
->hi_n_len
= cpu_to_le16(hi_n_len
);
457 tfd
->num_tbs
= idx
+ 1;
460 static inline u8
iwl_tfd_get_num_tbs(struct iwl_tfd
*tfd
)
462 return tfd
->num_tbs
& 0x1f;
466 * iwl_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
467 * @priv - driver private data
470 * Does NOT advance any TFD circular buffer read/write indexes
471 * Does NOT free the TFD itself (which is within circular buffer)
473 void iwl_hw_txq_free_tfd(struct iwl_priv
*priv
, struct iwl_tx_queue
*txq
)
475 struct iwl_tfd
*tfd_tmp
= (struct iwl_tfd
*)txq
->tfds
;
477 struct pci_dev
*dev
= priv
->pci_dev
;
478 int index
= txq
->q
.read_ptr
;
482 tfd
= &tfd_tmp
[index
];
484 /* Sanity check on number of chunks */
485 num_tbs
= iwl_tfd_get_num_tbs(tfd
);
487 if (num_tbs
>= IWL_NUM_OF_TBS
) {
488 IWL_ERR(priv
, "Too many chunks: %i\n", num_tbs
);
489 /* @todo issue fatal error, it is quite serious situation */
495 pci_unmap_single(dev
,
496 pci_unmap_addr(&txq
->meta
[index
], mapping
),
497 pci_unmap_len(&txq
->meta
[index
], len
),
498 PCI_DMA_BIDIRECTIONAL
);
500 /* Unmap chunks, if any. */
501 for (i
= 1; i
< num_tbs
; i
++) {
502 pci_unmap_single(dev
, iwl_tfd_tb_get_addr(tfd
, i
),
503 iwl_tfd_tb_get_len(tfd
, i
), PCI_DMA_TODEVICE
);
506 dev_kfree_skb(txq
->txb
[txq
->q
.read_ptr
].skb
[i
- 1]);
507 txq
->txb
[txq
->q
.read_ptr
].skb
[i
- 1] = NULL
;
512 int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv
*priv
,
513 struct iwl_tx_queue
*txq
,
514 dma_addr_t addr
, u16 len
,
518 struct iwl_tfd
*tfd
, *tfd_tmp
;
522 tfd_tmp
= (struct iwl_tfd
*)txq
->tfds
;
523 tfd
= &tfd_tmp
[q
->write_ptr
];
526 memset(tfd
, 0, sizeof(*tfd
));
528 num_tbs
= iwl_tfd_get_num_tbs(tfd
);
530 /* Each TFD can point to a maximum 20 Tx buffers */
531 if (num_tbs
>= IWL_NUM_OF_TBS
) {
532 IWL_ERR(priv
, "Error can not send more than %d chunks\n",
537 BUG_ON(addr
& ~DMA_BIT_MASK(36));
538 if (unlikely(addr
& ~IWL_TX_DMA_MASK
))
539 IWL_ERR(priv
, "Unaligned address = %llx\n",
540 (unsigned long long)addr
);
542 iwl_tfd_set_tb(tfd
, num_tbs
, addr
, len
);
548 * Tell nic where to find circular buffer of Tx Frame Descriptors for
549 * given Tx queue, and enable the DMA channel used for that queue.
551 * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA
552 * channels supported in hardware.
554 int iwl_hw_tx_queue_init(struct iwl_priv
*priv
,
555 struct iwl_tx_queue
*txq
)
557 int txq_id
= txq
->q
.id
;
559 /* Circular buffer (TFD queue in DRAM) physical base address */
560 iwl_write_direct32(priv
, FH_MEM_CBBC_QUEUE(txq_id
),
561 txq
->q
.dma_addr
>> 8);
566 /******************************************************************************
568 * Generic RX handler implementations
570 ******************************************************************************/
571 static void iwl_rx_reply_alive(struct iwl_priv
*priv
,
572 struct iwl_rx_mem_buffer
*rxb
)
574 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
575 struct iwl_alive_resp
*palive
;
576 struct delayed_work
*pwork
;
578 palive
= &pkt
->u
.alive_frame
;
580 IWL_DEBUG_INFO(priv
, "Alive ucode status 0x%08X revision "
582 palive
->is_valid
, palive
->ver_type
,
583 palive
->ver_subtype
);
585 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
586 IWL_DEBUG_INFO(priv
, "Initialization Alive received.\n");
587 memcpy(&priv
->card_alive_init
,
589 sizeof(struct iwl_init_alive_resp
));
590 pwork
= &priv
->init_alive_start
;
592 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
593 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
594 sizeof(struct iwl_alive_resp
));
595 pwork
= &priv
->alive_start
;
598 /* We delay the ALIVE response by 5ms to
599 * give the HW RF Kill time to activate... */
600 if (palive
->is_valid
== UCODE_VALID_OK
)
601 queue_delayed_work(priv
->workqueue
, pwork
,
602 msecs_to_jiffies(5));
604 IWL_WARN(priv
, "uCode did not respond OK.\n");
607 static void iwl_bg_beacon_update(struct work_struct
*work
)
609 struct iwl_priv
*priv
=
610 container_of(work
, struct iwl_priv
, beacon_update
);
611 struct sk_buff
*beacon
;
613 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
614 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
);
617 IWL_ERR(priv
, "update beacon failed\n");
621 mutex_lock(&priv
->mutex
);
622 /* new beacon skb is allocated every time; dispose previous.*/
623 if (priv
->ibss_beacon
)
624 dev_kfree_skb(priv
->ibss_beacon
);
626 priv
->ibss_beacon
= beacon
;
627 mutex_unlock(&priv
->mutex
);
629 iwl_send_beacon_cmd(priv
);
633 * iwl_bg_statistics_periodic - Timer callback to queue statistics
635 * This callback is provided in order to send a statistics request.
637 * This timer function is continually reset to execute within
638 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
639 * was received. We need to ensure we receive the statistics in order
640 * to update the temperature used for calibrating the TXPOWER.
642 static void iwl_bg_statistics_periodic(unsigned long data
)
644 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
646 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
649 /* dont send host command if rf-kill is on */
650 if (!iwl_is_ready_rf(priv
))
653 iwl_send_statistics_request(priv
, CMD_ASYNC
, false);
657 static void iwl_print_cont_event_trace(struct iwl_priv
*priv
, u32 base
,
658 u32 start_idx
, u32 num_events
,
662 u32 ptr
; /* SRAM byte address of log data */
663 u32 ev
, time
, data
; /* event log data */
664 unsigned long reg_flags
;
667 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 2 * sizeof(u32
));
669 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 3 * sizeof(u32
));
671 /* Make sure device is powered up for SRAM reads */
672 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
673 if (iwl_grab_nic_access(priv
)) {
674 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
678 /* Set starting address; reads will auto-increment */
679 _iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
683 * "time" is actually "data" for mode 0 (no timestamp).
684 * place event id # at far right for easier visual parsing.
686 for (i
= 0; i
< num_events
; i
++) {
687 ev
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
688 time
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
690 trace_iwlwifi_dev_ucode_cont_event(priv
,
693 data
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
694 trace_iwlwifi_dev_ucode_cont_event(priv
,
698 /* Allow device to power down */
699 iwl_release_nic_access(priv
);
700 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
703 static void iwl_continuous_event_trace(struct iwl_priv
*priv
)
705 u32 capacity
; /* event log capacity in # entries */
706 u32 base
; /* SRAM byte address of event log header */
707 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
708 u32 num_wraps
; /* # times uCode wrapped to top of log */
709 u32 next_entry
; /* index of next entry to be written by uCode */
711 if (priv
->ucode_type
== UCODE_INIT
)
712 base
= le32_to_cpu(priv
->card_alive_init
.error_event_table_ptr
);
714 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
715 if (priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
716 capacity
= iwl_read_targ_mem(priv
, base
);
717 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
718 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
719 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
723 if (num_wraps
== priv
->event_log
.num_wraps
) {
724 iwl_print_cont_event_trace(priv
,
725 base
, priv
->event_log
.next_entry
,
726 next_entry
- priv
->event_log
.next_entry
,
728 priv
->event_log
.non_wraps_count
++;
730 if ((num_wraps
- priv
->event_log
.num_wraps
) > 1)
731 priv
->event_log
.wraps_more_count
++;
733 priv
->event_log
.wraps_once_count
++;
734 trace_iwlwifi_dev_ucode_wrap_event(priv
,
735 num_wraps
- priv
->event_log
.num_wraps
,
736 next_entry
, priv
->event_log
.next_entry
);
737 if (next_entry
< priv
->event_log
.next_entry
) {
738 iwl_print_cont_event_trace(priv
, base
,
739 priv
->event_log
.next_entry
,
740 capacity
- priv
->event_log
.next_entry
,
743 iwl_print_cont_event_trace(priv
, base
, 0,
746 iwl_print_cont_event_trace(priv
, base
,
747 next_entry
, capacity
- next_entry
,
750 iwl_print_cont_event_trace(priv
, base
, 0,
754 priv
->event_log
.num_wraps
= num_wraps
;
755 priv
->event_log
.next_entry
= next_entry
;
759 * iwl_bg_ucode_trace - Timer callback to log ucode event
761 * The timer is continually set to execute every
762 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
763 * this function is to perform continuous uCode event logging operation
766 static void iwl_bg_ucode_trace(unsigned long data
)
768 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
770 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
773 if (priv
->event_log
.ucode_trace
) {
774 iwl_continuous_event_trace(priv
);
775 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
776 mod_timer(&priv
->ucode_trace
,
777 jiffies
+ msecs_to_jiffies(UCODE_TRACE_PERIOD
));
781 static void iwl_rx_beacon_notif(struct iwl_priv
*priv
,
782 struct iwl_rx_mem_buffer
*rxb
)
784 #ifdef CONFIG_IWLWIFI_DEBUG
785 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
786 struct iwl4965_beacon_notif
*beacon
=
787 (struct iwl4965_beacon_notif
*)pkt
->u
.raw
;
788 u8 rate
= iwl_hw_get_rate(beacon
->beacon_notify_hdr
.rate_n_flags
);
790 IWL_DEBUG_RX(priv
, "beacon status %x retries %d iss %d "
791 "tsf %d %d rate %d\n",
792 le32_to_cpu(beacon
->beacon_notify_hdr
.u
.status
) & TX_STATUS_MSK
,
793 beacon
->beacon_notify_hdr
.failure_frame
,
794 le32_to_cpu(beacon
->ibss_mgr_status
),
795 le32_to_cpu(beacon
->high_tsf
),
796 le32_to_cpu(beacon
->low_tsf
), rate
);
799 if ((priv
->iw_mode
== NL80211_IFTYPE_AP
) &&
800 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
801 queue_work(priv
->workqueue
, &priv
->beacon_update
);
804 /* Handle notification from uCode that card's power state is changing
805 * due to software, hardware, or critical temperature RFKILL */
806 static void iwl_rx_card_state_notif(struct iwl_priv
*priv
,
807 struct iwl_rx_mem_buffer
*rxb
)
809 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
810 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
811 unsigned long status
= priv
->status
;
813 IWL_DEBUG_RF_KILL(priv
, "Card state received: HW:%s SW:%s CT:%s\n",
814 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
815 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On",
816 (flags
& CT_CARD_DISABLED
) ?
817 "Reached" : "Not reached");
819 if (flags
& (SW_CARD_DISABLED
| HW_CARD_DISABLED
|
822 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
823 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
825 iwl_write_direct32(priv
, HBUS_TARG_MBX_C
,
826 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
828 if (!(flags
& RXON_CARD_DISABLED
)) {
829 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
830 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
831 iwl_write_direct32(priv
, HBUS_TARG_MBX_C
,
832 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
834 if (flags
& CT_CARD_DISABLED
)
835 iwl_tt_enter_ct_kill(priv
);
837 if (!(flags
& CT_CARD_DISABLED
))
838 iwl_tt_exit_ct_kill(priv
);
840 if (flags
& HW_CARD_DISABLED
)
841 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
843 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
846 if (!(flags
& RXON_CARD_DISABLED
))
847 iwl_scan_cancel(priv
);
849 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
850 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)))
851 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
852 test_bit(STATUS_RF_KILL_HW
, &priv
->status
));
854 wake_up_interruptible(&priv
->wait_command_queue
);
857 int iwl_set_pwr_src(struct iwl_priv
*priv
, enum iwl_pwr_src src
)
859 if (src
== IWL_PWR_SRC_VAUX
) {
860 if (pci_pme_capable(priv
->pci_dev
, PCI_D3cold
))
861 iwl_set_bits_mask_prph(priv
, APMG_PS_CTRL_REG
,
862 APMG_PS_CTRL_VAL_PWR_SRC_VAUX
,
863 ~APMG_PS_CTRL_MSK_PWR_SRC
);
865 iwl_set_bits_mask_prph(priv
, APMG_PS_CTRL_REG
,
866 APMG_PS_CTRL_VAL_PWR_SRC_VMAIN
,
867 ~APMG_PS_CTRL_MSK_PWR_SRC
);
874 * iwl_setup_rx_handlers - Initialize Rx handler callbacks
876 * Setup the RX handlers for each of the reply types sent from the uCode
879 * This function chains into the hardware specific files for them to setup
880 * any hardware specific handlers as well.
882 static void iwl_setup_rx_handlers(struct iwl_priv
*priv
)
884 priv
->rx_handlers
[REPLY_ALIVE
] = iwl_rx_reply_alive
;
885 priv
->rx_handlers
[REPLY_ERROR
] = iwl_rx_reply_error
;
886 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl_rx_csa
;
887 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
888 iwl_rx_spectrum_measure_notif
;
889 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl_rx_pm_sleep_notif
;
890 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
891 iwl_rx_pm_debug_statistics_notif
;
892 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl_rx_beacon_notif
;
895 * The same handler is used for both the REPLY to a discrete
896 * statistics request from the host as well as for the periodic
897 * statistics notifications (after received beacons) from the uCode.
899 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl_reply_statistics
;
900 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl_rx_statistics
;
902 iwl_setup_rx_scan_handlers(priv
);
904 /* status change handler */
905 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl_rx_card_state_notif
;
907 priv
->rx_handlers
[MISSED_BEACONS_NOTIFICATION
] =
908 iwl_rx_missed_beacon_notif
;
910 priv
->rx_handlers
[REPLY_RX_PHY_CMD
] = iwl_rx_reply_rx_phy
;
911 priv
->rx_handlers
[REPLY_RX_MPDU_CMD
] = iwl_rx_reply_rx
;
913 priv
->rx_handlers
[REPLY_COMPRESSED_BA
] = iwl_rx_reply_compressed_ba
;
914 /* Set up hardware specific Rx handlers */
915 priv
->cfg
->ops
->lib
->rx_handler_setup(priv
);
919 * iwl_rx_handle - Main entry function for receiving responses from uCode
921 * Uses the priv->rx_handlers callback function array to invoke
922 * the appropriate handlers, including command responses,
923 * frame-received notifications, and other notifications.
925 void iwl_rx_handle(struct iwl_priv
*priv
)
927 struct iwl_rx_mem_buffer
*rxb
;
928 struct iwl_rx_packet
*pkt
;
929 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
937 /* uCode's read index (stored in shared DRAM) indicates the last Rx
938 * buffer that the driver may process (last buffer filled by ucode). */
939 r
= le16_to_cpu(rxq
->rb_stts
->closed_rb_num
) & 0x0FFF;
942 /* Rx interrupt, but nothing sent from uCode */
944 IWL_DEBUG_RX(priv
, "r = %d, i = %d\n", r
, i
);
946 /* calculate total frames need to be restock after handling RX */
947 total_empty
= r
- rxq
->write_actual
;
949 total_empty
+= RX_QUEUE_SIZE
;
951 if (total_empty
> (RX_QUEUE_SIZE
/ 2))
957 /* If an RXB doesn't have a Rx queue slot associated with it,
958 * then a bug has been introduced in the queue refilling
959 * routines -- catch it here */
962 rxq
->queue
[i
] = NULL
;
964 pci_unmap_page(priv
->pci_dev
, rxb
->page_dma
,
965 PAGE_SIZE
<< priv
->hw_params
.rx_page_order
,
969 trace_iwlwifi_dev_rx(priv
, pkt
,
970 le32_to_cpu(pkt
->len_n_flags
) & FH_RSCSR_FRAME_SIZE_MSK
);
972 /* Reclaim a command buffer only if this packet is a response
973 * to a (driver-originated) command.
974 * If the packet (e.g. Rx frame) originated from uCode,
975 * there is no command buffer to reclaim.
976 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
977 * but apparently a few don't get set; catch them here. */
978 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
979 (pkt
->hdr
.cmd
!= REPLY_RX_PHY_CMD
) &&
980 (pkt
->hdr
.cmd
!= REPLY_RX
) &&
981 (pkt
->hdr
.cmd
!= REPLY_RX_MPDU_CMD
) &&
982 (pkt
->hdr
.cmd
!= REPLY_COMPRESSED_BA
) &&
983 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
984 (pkt
->hdr
.cmd
!= REPLY_TX
);
986 /* Based on type of command response or notification,
987 * handle those that need handling via function in
988 * rx_handlers table. See iwl_setup_rx_handlers() */
989 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
990 IWL_DEBUG_RX(priv
, "r = %d, i = %d, %s, 0x%02x\n", r
,
991 i
, get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
992 priv
->isr_stats
.rx_handlers
[pkt
->hdr
.cmd
]++;
993 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
995 /* No handling needed */
997 "r %d i %d No handler needed for %s, 0x%02x\n",
998 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
1003 * XXX: After here, we should always check rxb->page
1004 * against NULL before touching it or its virtual
1005 * memory (pkt). Because some rx_handler might have
1006 * already taken or freed the pages.
1010 /* Invoke any callbacks, transfer the buffer to caller,
1011 * and fire off the (possibly) blocking iwl_send_cmd()
1012 * as we reclaim the driver command queue */
1014 iwl_tx_cmd_complete(priv
, rxb
);
1016 IWL_WARN(priv
, "Claim null rxb?\n");
1019 /* Reuse the page if possible. For notification packets and
1020 * SKBs that fail to Rx correctly, add them back into the
1021 * rx_free list for reuse later. */
1022 spin_lock_irqsave(&rxq
->lock
, flags
);
1023 if (rxb
->page
!= NULL
) {
1024 rxb
->page_dma
= pci_map_page(priv
->pci_dev
, rxb
->page
,
1025 0, PAGE_SIZE
<< priv
->hw_params
.rx_page_order
,
1026 PCI_DMA_FROMDEVICE
);
1027 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
1030 list_add_tail(&rxb
->list
, &rxq
->rx_used
);
1032 spin_unlock_irqrestore(&rxq
->lock
, flags
);
1034 i
= (i
+ 1) & RX_QUEUE_MASK
;
1035 /* If there are a lot of unused frames,
1036 * restock the Rx queue so ucode wont assert. */
1041 iwl_rx_replenish_now(priv
);
1047 /* Backtrack one entry */
1050 iwl_rx_replenish_now(priv
);
1052 iwl_rx_queue_restock(priv
);
1055 /* call this function to flush any scheduled tasklet */
1056 static inline void iwl_synchronize_irq(struct iwl_priv
*priv
)
1058 /* wait to make sure we flush pending tasklet*/
1059 synchronize_irq(priv
->pci_dev
->irq
);
1060 tasklet_kill(&priv
->irq_tasklet
);
1063 static void iwl_irq_tasklet_legacy(struct iwl_priv
*priv
)
1065 u32 inta
, handled
= 0;
1067 unsigned long flags
;
1069 #ifdef CONFIG_IWLWIFI_DEBUG
1073 spin_lock_irqsave(&priv
->lock
, flags
);
1075 /* Ack/clear/reset pending uCode interrupts.
1076 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
1077 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
1078 inta
= iwl_read32(priv
, CSR_INT
);
1079 iwl_write32(priv
, CSR_INT
, inta
);
1081 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
1082 * Any new interrupts that happen after this, either while we're
1083 * in this tasklet, or later, will show up in next ISR/tasklet. */
1084 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1085 iwl_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
1087 #ifdef CONFIG_IWLWIFI_DEBUG
1088 if (iwl_get_debug_level(priv
) & IWL_DL_ISR
) {
1089 /* just for debug */
1090 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
1091 IWL_DEBUG_ISR(priv
, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1092 inta
, inta_mask
, inta_fh
);
1096 spin_unlock_irqrestore(&priv
->lock
, flags
);
1098 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
1099 * atomic, make sure that inta covers all the interrupts that
1100 * we've discovered, even if FH interrupt came in just after
1101 * reading CSR_INT. */
1102 if (inta_fh
& CSR49_FH_INT_RX_MASK
)
1103 inta
|= CSR_INT_BIT_FH_RX
;
1104 if (inta_fh
& CSR49_FH_INT_TX_MASK
)
1105 inta
|= CSR_INT_BIT_FH_TX
;
1107 /* Now service all interrupt bits discovered above. */
1108 if (inta
& CSR_INT_BIT_HW_ERR
) {
1109 IWL_ERR(priv
, "Hardware error detected. Restarting.\n");
1111 /* Tell the device to stop sending interrupts */
1112 iwl_disable_interrupts(priv
);
1114 priv
->isr_stats
.hw
++;
1115 iwl_irq_handle_error(priv
);
1117 handled
|= CSR_INT_BIT_HW_ERR
;
1122 #ifdef CONFIG_IWLWIFI_DEBUG
1123 if (iwl_get_debug_level(priv
) & (IWL_DL_ISR
)) {
1124 /* NIC fires this, but we don't use it, redundant with WAKEUP */
1125 if (inta
& CSR_INT_BIT_SCD
) {
1126 IWL_DEBUG_ISR(priv
, "Scheduler finished to transmit "
1127 "the frame/frames.\n");
1128 priv
->isr_stats
.sch
++;
1131 /* Alive notification via Rx interrupt will do the real work */
1132 if (inta
& CSR_INT_BIT_ALIVE
) {
1133 IWL_DEBUG_ISR(priv
, "Alive interrupt\n");
1134 priv
->isr_stats
.alive
++;
1138 /* Safely ignore these bits for debug checks below */
1139 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
1141 /* HW RF KILL switch toggled */
1142 if (inta
& CSR_INT_BIT_RF_KILL
) {
1144 if (!(iwl_read32(priv
, CSR_GP_CNTRL
) &
1145 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
1148 IWL_WARN(priv
, "RF_KILL bit toggled to %s.\n",
1149 hw_rf_kill
? "disable radio" : "enable radio");
1151 priv
->isr_stats
.rfkill
++;
1153 /* driver only loads ucode once setting the interface up.
1154 * the driver allows loading the ucode even if the radio
1155 * is killed. Hence update the killswitch state here. The
1156 * rfkill handler will care about restarting if needed.
1158 if (!test_bit(STATUS_ALIVE
, &priv
->status
)) {
1160 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1162 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1163 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
, hw_rf_kill
);
1166 handled
|= CSR_INT_BIT_RF_KILL
;
1169 /* Chip got too hot and stopped itself */
1170 if (inta
& CSR_INT_BIT_CT_KILL
) {
1171 IWL_ERR(priv
, "Microcode CT kill error detected.\n");
1172 priv
->isr_stats
.ctkill
++;
1173 handled
|= CSR_INT_BIT_CT_KILL
;
1176 /* Error detected by uCode */
1177 if (inta
& CSR_INT_BIT_SW_ERR
) {
1178 IWL_ERR(priv
, "Microcode SW error detected. "
1179 " Restarting 0x%X.\n", inta
);
1180 priv
->isr_stats
.sw
++;
1181 priv
->isr_stats
.sw_err
= inta
;
1182 iwl_irq_handle_error(priv
);
1183 handled
|= CSR_INT_BIT_SW_ERR
;
1187 * uCode wakes up after power-down sleep.
1188 * Tell device about any new tx or host commands enqueued,
1189 * and about any Rx buffers made available while asleep.
1191 if (inta
& CSR_INT_BIT_WAKEUP
) {
1192 IWL_DEBUG_ISR(priv
, "Wakeup interrupt\n");
1193 iwl_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
1194 for (i
= 0; i
< priv
->hw_params
.max_txq_num
; i
++)
1195 iwl_txq_update_write_ptr(priv
, &priv
->txq
[i
]);
1196 priv
->isr_stats
.wakeup
++;
1197 handled
|= CSR_INT_BIT_WAKEUP
;
1200 /* All uCode command responses, including Tx command responses,
1201 * Rx "responses" (frame-received notification), and other
1202 * notifications from uCode come through here*/
1203 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
1204 iwl_rx_handle(priv
);
1205 priv
->isr_stats
.rx
++;
1206 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
1209 /* This "Tx" DMA channel is used only for loading uCode */
1210 if (inta
& CSR_INT_BIT_FH_TX
) {
1211 IWL_DEBUG_ISR(priv
, "uCode load interrupt\n");
1212 priv
->isr_stats
.tx
++;
1213 handled
|= CSR_INT_BIT_FH_TX
;
1214 /* Wake up uCode load routine, now that load is complete */
1215 priv
->ucode_write_complete
= 1;
1216 wake_up_interruptible(&priv
->wait_command_queue
);
1219 if (inta
& ~handled
) {
1220 IWL_ERR(priv
, "Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
1221 priv
->isr_stats
.unhandled
++;
1224 if (inta
& ~(priv
->inta_mask
)) {
1225 IWL_WARN(priv
, "Disabled INTA bits 0x%08x were pending\n",
1226 inta
& ~priv
->inta_mask
);
1227 IWL_WARN(priv
, " with FH_INT = 0x%08x\n", inta_fh
);
1230 /* Re-enable all interrupts */
1231 /* only Re-enable if diabled by irq */
1232 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
1233 iwl_enable_interrupts(priv
);
1235 #ifdef CONFIG_IWLWIFI_DEBUG
1236 if (iwl_get_debug_level(priv
) & (IWL_DL_ISR
)) {
1237 inta
= iwl_read32(priv
, CSR_INT
);
1238 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
1239 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1240 IWL_DEBUG_ISR(priv
, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
1241 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
1246 /* tasklet for iwlagn interrupt */
1247 static void iwl_irq_tasklet(struct iwl_priv
*priv
)
1251 unsigned long flags
;
1253 #ifdef CONFIG_IWLWIFI_DEBUG
1257 spin_lock_irqsave(&priv
->lock
, flags
);
1259 /* Ack/clear/reset pending uCode interrupts.
1260 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
1262 iwl_write32(priv
, CSR_INT
, priv
->_agn
.inta
);
1264 inta
= priv
->_agn
.inta
;
1266 #ifdef CONFIG_IWLWIFI_DEBUG
1267 if (iwl_get_debug_level(priv
) & IWL_DL_ISR
) {
1268 /* just for debug */
1269 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
1270 IWL_DEBUG_ISR(priv
, "inta 0x%08x, enabled 0x%08x\n ",
1275 spin_unlock_irqrestore(&priv
->lock
, flags
);
1277 /* saved interrupt in inta variable now we can reset priv->_agn.inta */
1278 priv
->_agn
.inta
= 0;
1280 /* Now service all interrupt bits discovered above. */
1281 if (inta
& CSR_INT_BIT_HW_ERR
) {
1282 IWL_ERR(priv
, "Hardware error detected. Restarting.\n");
1284 /* Tell the device to stop sending interrupts */
1285 iwl_disable_interrupts(priv
);
1287 priv
->isr_stats
.hw
++;
1288 iwl_irq_handle_error(priv
);
1290 handled
|= CSR_INT_BIT_HW_ERR
;
1295 #ifdef CONFIG_IWLWIFI_DEBUG
1296 if (iwl_get_debug_level(priv
) & (IWL_DL_ISR
)) {
1297 /* NIC fires this, but we don't use it, redundant with WAKEUP */
1298 if (inta
& CSR_INT_BIT_SCD
) {
1299 IWL_DEBUG_ISR(priv
, "Scheduler finished to transmit "
1300 "the frame/frames.\n");
1301 priv
->isr_stats
.sch
++;
1304 /* Alive notification via Rx interrupt will do the real work */
1305 if (inta
& CSR_INT_BIT_ALIVE
) {
1306 IWL_DEBUG_ISR(priv
, "Alive interrupt\n");
1307 priv
->isr_stats
.alive
++;
1311 /* Safely ignore these bits for debug checks below */
1312 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
1314 /* HW RF KILL switch toggled */
1315 if (inta
& CSR_INT_BIT_RF_KILL
) {
1317 if (!(iwl_read32(priv
, CSR_GP_CNTRL
) &
1318 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
1321 IWL_WARN(priv
, "RF_KILL bit toggled to %s.\n",
1322 hw_rf_kill
? "disable radio" : "enable radio");
1324 priv
->isr_stats
.rfkill
++;
1326 /* driver only loads ucode once setting the interface up.
1327 * the driver allows loading the ucode even if the radio
1328 * is killed. Hence update the killswitch state here. The
1329 * rfkill handler will care about restarting if needed.
1331 if (!test_bit(STATUS_ALIVE
, &priv
->status
)) {
1333 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1335 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1336 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
, hw_rf_kill
);
1339 handled
|= CSR_INT_BIT_RF_KILL
;
1342 /* Chip got too hot and stopped itself */
1343 if (inta
& CSR_INT_BIT_CT_KILL
) {
1344 IWL_ERR(priv
, "Microcode CT kill error detected.\n");
1345 priv
->isr_stats
.ctkill
++;
1346 handled
|= CSR_INT_BIT_CT_KILL
;
1349 /* Error detected by uCode */
1350 if (inta
& CSR_INT_BIT_SW_ERR
) {
1351 IWL_ERR(priv
, "Microcode SW error detected. "
1352 " Restarting 0x%X.\n", inta
);
1353 priv
->isr_stats
.sw
++;
1354 priv
->isr_stats
.sw_err
= inta
;
1355 iwl_irq_handle_error(priv
);
1356 handled
|= CSR_INT_BIT_SW_ERR
;
1359 /* uCode wakes up after power-down sleep */
1360 if (inta
& CSR_INT_BIT_WAKEUP
) {
1361 IWL_DEBUG_ISR(priv
, "Wakeup interrupt\n");
1362 iwl_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
1363 for (i
= 0; i
< priv
->hw_params
.max_txq_num
; i
++)
1364 iwl_txq_update_write_ptr(priv
, &priv
->txq
[i
]);
1366 priv
->isr_stats
.wakeup
++;
1368 handled
|= CSR_INT_BIT_WAKEUP
;
1371 /* All uCode command responses, including Tx command responses,
1372 * Rx "responses" (frame-received notification), and other
1373 * notifications from uCode come through here*/
1374 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
|
1375 CSR_INT_BIT_RX_PERIODIC
)) {
1376 IWL_DEBUG_ISR(priv
, "Rx interrupt\n");
1377 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
1378 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
1379 iwl_write32(priv
, CSR_FH_INT_STATUS
,
1380 CSR49_FH_INT_RX_MASK
);
1382 if (inta
& CSR_INT_BIT_RX_PERIODIC
) {
1383 handled
|= CSR_INT_BIT_RX_PERIODIC
;
1384 iwl_write32(priv
, CSR_INT
, CSR_INT_BIT_RX_PERIODIC
);
1386 /* Sending RX interrupt require many steps to be done in the
1388 * 1- write interrupt to current index in ICT table.
1390 * 3- update RX shared data to indicate last write index.
1391 * 4- send interrupt.
1392 * This could lead to RX race, driver could receive RX interrupt
1393 * but the shared data changes does not reflect this;
1394 * periodic interrupt will detect any dangling Rx activity.
1397 /* Disable periodic interrupt; we use it as just a one-shot. */
1398 iwl_write8(priv
, CSR_INT_PERIODIC_REG
,
1399 CSR_INT_PERIODIC_DIS
);
1400 iwl_rx_handle(priv
);
1403 * Enable periodic interrupt in 8 msec only if we received
1404 * real RX interrupt (instead of just periodic int), to catch
1405 * any dangling Rx interrupt. If it was just the periodic
1406 * interrupt, there was no dangling Rx activity, and no need
1407 * to extend the periodic interrupt; one-shot is enough.
1409 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
))
1410 iwl_write8(priv
, CSR_INT_PERIODIC_REG
,
1411 CSR_INT_PERIODIC_ENA
);
1413 priv
->isr_stats
.rx
++;
1416 /* This "Tx" DMA channel is used only for loading uCode */
1417 if (inta
& CSR_INT_BIT_FH_TX
) {
1418 iwl_write32(priv
, CSR_FH_INT_STATUS
, CSR49_FH_INT_TX_MASK
);
1419 IWL_DEBUG_ISR(priv
, "uCode load interrupt\n");
1420 priv
->isr_stats
.tx
++;
1421 handled
|= CSR_INT_BIT_FH_TX
;
1422 /* Wake up uCode load routine, now that load is complete */
1423 priv
->ucode_write_complete
= 1;
1424 wake_up_interruptible(&priv
->wait_command_queue
);
1427 if (inta
& ~handled
) {
1428 IWL_ERR(priv
, "Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
1429 priv
->isr_stats
.unhandled
++;
1432 if (inta
& ~(priv
->inta_mask
)) {
1433 IWL_WARN(priv
, "Disabled INTA bits 0x%08x were pending\n",
1434 inta
& ~priv
->inta_mask
);
1437 /* Re-enable all interrupts */
1438 /* only Re-enable if diabled by irq */
1439 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
1440 iwl_enable_interrupts(priv
);
1444 /******************************************************************************
1446 * uCode download functions
1448 ******************************************************************************/
1450 static void iwl_dealloc_ucode_pci(struct iwl_priv
*priv
)
1452 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
1453 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
1454 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
1455 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
1456 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
1457 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
1460 static void iwl_nic_start(struct iwl_priv
*priv
)
1462 /* Remove all resets to allow NIC to operate */
1463 iwl_write32(priv
, CSR_RESET
, 0);
1467 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
);
1468 static int iwl_mac_setup_register(struct iwl_priv
*priv
);
1470 static int __must_check
iwl_request_firmware(struct iwl_priv
*priv
, bool first
)
1472 const char *name_pre
= priv
->cfg
->fw_name_pre
;
1475 priv
->fw_index
= priv
->cfg
->ucode_api_max
;
1479 if (priv
->fw_index
< priv
->cfg
->ucode_api_min
) {
1480 IWL_ERR(priv
, "no suitable firmware found!\n");
1484 sprintf(priv
->firmware_name
, "%s%d%s",
1485 name_pre
, priv
->fw_index
, ".ucode");
1487 IWL_DEBUG_INFO(priv
, "attempting to load firmware '%s'\n",
1488 priv
->firmware_name
);
1490 return request_firmware_nowait(THIS_MODULE
, 1, priv
->firmware_name
,
1491 &priv
->pci_dev
->dev
, GFP_KERNEL
, priv
,
1492 iwl_ucode_callback
);
1496 * iwl_ucode_callback - callback when firmware was loaded
1498 * If loaded successfully, copies the firmware into buffers
1499 * for the card to fetch (via DMA).
1501 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
)
1503 struct iwl_priv
*priv
= context
;
1504 struct iwl_ucode_header
*ucode
;
1505 const unsigned int api_max
= priv
->cfg
->ucode_api_max
;
1506 const unsigned int api_min
= priv
->cfg
->ucode_api_min
;
1510 u32 inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
1515 IWL_ERR(priv
, "request for firmware file '%s' failed.\n",
1516 priv
->firmware_name
);
1520 IWL_DEBUG_INFO(priv
, "Loaded firmware file '%s' (%zd bytes).\n",
1521 priv
->firmware_name
, ucode_raw
->size
);
1523 /* Make sure that we got at least the v1 header! */
1524 if (ucode_raw
->size
< priv
->cfg
->ops
->ucode
->get_header_size(1)) {
1525 IWL_ERR(priv
, "File size way too small!\n");
1529 /* Data from ucode file: header followed by uCode images */
1530 ucode
= (struct iwl_ucode_header
*)ucode_raw
->data
;
1532 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
1533 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
1534 build
= priv
->cfg
->ops
->ucode
->get_build(ucode
, api_ver
);
1535 inst_size
= priv
->cfg
->ops
->ucode
->get_inst_size(ucode
, api_ver
);
1536 data_size
= priv
->cfg
->ops
->ucode
->get_data_size(ucode
, api_ver
);
1537 init_size
= priv
->cfg
->ops
->ucode
->get_init_size(ucode
, api_ver
);
1539 priv
->cfg
->ops
->ucode
->get_init_data_size(ucode
, api_ver
);
1540 boot_size
= priv
->cfg
->ops
->ucode
->get_boot_size(ucode
, api_ver
);
1541 src
= priv
->cfg
->ops
->ucode
->get_data(ucode
, api_ver
);
1543 /* api_ver should match the api version forming part of the
1544 * firmware filename ... but we don't check for that and only rely
1545 * on the API version read from firmware header from here on forward */
1547 if (api_ver
< api_min
|| api_ver
> api_max
) {
1548 IWL_ERR(priv
, "Driver unable to support your firmware API. "
1549 "Driver supports v%u, firmware is v%u.\n",
1554 if (api_ver
!= api_max
)
1555 IWL_ERR(priv
, "Firmware has old API version. Expected v%u, "
1556 "got v%u. New firmware can be obtained "
1557 "from http://www.intellinuxwireless.org.\n",
1560 IWL_INFO(priv
, "loaded firmware version %u.%u.%u.%u\n",
1561 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1562 IWL_UCODE_MINOR(priv
->ucode_ver
),
1563 IWL_UCODE_API(priv
->ucode_ver
),
1564 IWL_UCODE_SERIAL(priv
->ucode_ver
));
1566 snprintf(priv
->hw
->wiphy
->fw_version
,
1567 sizeof(priv
->hw
->wiphy
->fw_version
),
1569 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1570 IWL_UCODE_MINOR(priv
->ucode_ver
),
1571 IWL_UCODE_API(priv
->ucode_ver
),
1572 IWL_UCODE_SERIAL(priv
->ucode_ver
));
1575 IWL_DEBUG_INFO(priv
, "Build %u\n", build
);
1577 eeprom_ver
= iwl_eeprom_query16(priv
, EEPROM_VERSION
);
1578 IWL_DEBUG_INFO(priv
, "NVM Type: %s, version: 0x%x\n",
1579 (priv
->nvm_device_type
== NVM_DEVICE_TYPE_OTP
)
1580 ? "OTP" : "EEPROM", eeprom_ver
);
1582 IWL_DEBUG_INFO(priv
, "f/w package hdr ucode version raw = 0x%x\n",
1584 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime inst size = %u\n",
1586 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime data size = %u\n",
1588 IWL_DEBUG_INFO(priv
, "f/w package hdr init inst size = %u\n",
1590 IWL_DEBUG_INFO(priv
, "f/w package hdr init data size = %u\n",
1592 IWL_DEBUG_INFO(priv
, "f/w package hdr boot inst size = %u\n",
1596 * For any of the failures below (before allocating pci memory)
1597 * we will try to load a version with a smaller API -- maybe the
1598 * user just got a corrupted version of the latest API.
1601 /* Verify size of file vs. image size info in file's header */
1602 if (ucode_raw
->size
!=
1603 priv
->cfg
->ops
->ucode
->get_header_size(api_ver
) +
1604 inst_size
+ data_size
+ init_size
+
1605 init_data_size
+ boot_size
) {
1607 IWL_DEBUG_INFO(priv
,
1608 "uCode file size %d does not match expected size\n",
1609 (int)ucode_raw
->size
);
1613 /* Verify that uCode images will fit in card's SRAM */
1614 if (inst_size
> priv
->hw_params
.max_inst_size
) {
1615 IWL_DEBUG_INFO(priv
, "uCode instr len %d too large to fit in\n",
1620 if (data_size
> priv
->hw_params
.max_data_size
) {
1621 IWL_DEBUG_INFO(priv
, "uCode data len %d too large to fit in\n",
1625 if (init_size
> priv
->hw_params
.max_inst_size
) {
1626 IWL_INFO(priv
, "uCode init instr len %d too large to fit in\n",
1630 if (init_data_size
> priv
->hw_params
.max_data_size
) {
1631 IWL_INFO(priv
, "uCode init data len %d too large to fit in\n",
1635 if (boot_size
> priv
->hw_params
.max_bsm_size
) {
1636 IWL_INFO(priv
, "uCode boot instr len %d too large to fit in\n",
1641 /* Allocate ucode buffers for card's bus-master loading ... */
1643 /* Runtime instructions and 2 copies of data:
1644 * 1) unmodified from disk
1645 * 2) backup cache for save/restore during power-downs */
1646 priv
->ucode_code
.len
= inst_size
;
1647 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
1649 priv
->ucode_data
.len
= data_size
;
1650 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
1652 priv
->ucode_data_backup
.len
= data_size
;
1653 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
1655 if (!priv
->ucode_code
.v_addr
|| !priv
->ucode_data
.v_addr
||
1656 !priv
->ucode_data_backup
.v_addr
)
1659 /* Initialization instructions and data */
1660 if (init_size
&& init_data_size
) {
1661 priv
->ucode_init
.len
= init_size
;
1662 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
1664 priv
->ucode_init_data
.len
= init_data_size
;
1665 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
1667 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
1671 /* Bootstrap (instructions only, no data) */
1673 priv
->ucode_boot
.len
= boot_size
;
1674 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
1676 if (!priv
->ucode_boot
.v_addr
)
1680 /* Copy images into buffers for card's bus-master reads ... */
1682 /* Runtime instructions (first block of data in file) */
1684 IWL_DEBUG_INFO(priv
, "Copying (but not loading) uCode instr len %Zd\n", len
);
1685 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
1688 IWL_DEBUG_INFO(priv
, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
1689 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
1691 /* Runtime data (2nd block)
1692 * NOTE: Copy into backup buffer will be done in iwl_up() */
1694 IWL_DEBUG_INFO(priv
, "Copying (but not loading) uCode data len %Zd\n", len
);
1695 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
1696 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
1699 /* Initialization instructions (3rd block) */
1702 IWL_DEBUG_INFO(priv
, "Copying (but not loading) init instr len %Zd\n",
1704 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
1708 /* Initialization data (4th block) */
1709 if (init_data_size
) {
1710 len
= init_data_size
;
1711 IWL_DEBUG_INFO(priv
, "Copying (but not loading) init data len %Zd\n",
1713 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
1717 /* Bootstrap instructions (5th block) */
1719 IWL_DEBUG_INFO(priv
, "Copying (but not loading) boot instr len %Zd\n", len
);
1720 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
1722 /**************************************************
1723 * This is still part of probe() in a sense...
1725 * 9. Setup and register with mac80211 and debugfs
1726 **************************************************/
1727 err
= iwl_mac_setup_register(priv
);
1731 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
1733 IWL_ERR(priv
, "failed to create debugfs files. Ignoring error: %d\n", err
);
1735 /* We have our copies now, allow OS release its copies */
1736 release_firmware(ucode_raw
);
1740 /* try next, if any */
1741 if (iwl_request_firmware(priv
, false))
1743 release_firmware(ucode_raw
);
1747 IWL_ERR(priv
, "failed to allocate pci memory\n");
1748 iwl_dealloc_ucode_pci(priv
);
1750 device_release_driver(&priv
->pci_dev
->dev
);
1751 release_firmware(ucode_raw
);
1754 static const char *desc_lookup_text
[] = {
1759 "NMI_INTERRUPT_WDG",
1763 "HW_ERROR_TUNE_LOCK",
1764 "HW_ERROR_TEMPERATURE",
1765 "ILLEGAL_CHAN_FREQ",
1768 "NMI_INTERRUPT_HOST",
1769 "NMI_INTERRUPT_ACTION_PT",
1770 "NMI_INTERRUPT_UNKNOWN",
1771 "UCODE_VERSION_MISMATCH",
1772 "HW_ERROR_ABS_LOCK",
1773 "HW_ERROR_CAL_LOCK_FAIL",
1774 "NMI_INTERRUPT_INST_ACTION_PT",
1775 "NMI_INTERRUPT_DATA_ACTION_PT",
1777 "NMI_INTERRUPT_TRM",
1778 "NMI_INTERRUPT_BREAK_POINT"
1783 "ADVANCED SYSASSERT"
1786 static const char *desc_lookup(int i
)
1788 int max
= ARRAY_SIZE(desc_lookup_text
) - 1;
1790 if (i
< 0 || i
> max
)
1793 return desc_lookup_text
[i
];
1796 #define ERROR_START_OFFSET (1 * sizeof(u32))
1797 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1799 void iwl_dump_nic_error_log(struct iwl_priv
*priv
)
1802 u32 desc
, time
, count
, base
, data1
;
1803 u32 blink1
, blink2
, ilink1
, ilink2
;
1805 if (priv
->ucode_type
== UCODE_INIT
)
1806 base
= le32_to_cpu(priv
->card_alive_init
.error_event_table_ptr
);
1808 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
1810 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
1812 "Not valid error log pointer 0x%08X for %s uCode\n",
1813 base
, (priv
->ucode_type
== UCODE_INIT
) ? "Init" : "RT");
1817 count
= iwl_read_targ_mem(priv
, base
);
1819 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
1820 IWL_ERR(priv
, "Start IWL Error Log Dump:\n");
1821 IWL_ERR(priv
, "Status: 0x%08lX, count: %d\n",
1822 priv
->status
, count
);
1825 desc
= iwl_read_targ_mem(priv
, base
+ 1 * sizeof(u32
));
1826 blink1
= iwl_read_targ_mem(priv
, base
+ 3 * sizeof(u32
));
1827 blink2
= iwl_read_targ_mem(priv
, base
+ 4 * sizeof(u32
));
1828 ilink1
= iwl_read_targ_mem(priv
, base
+ 5 * sizeof(u32
));
1829 ilink2
= iwl_read_targ_mem(priv
, base
+ 6 * sizeof(u32
));
1830 data1
= iwl_read_targ_mem(priv
, base
+ 7 * sizeof(u32
));
1831 data2
= iwl_read_targ_mem(priv
, base
+ 8 * sizeof(u32
));
1832 line
= iwl_read_targ_mem(priv
, base
+ 9 * sizeof(u32
));
1833 time
= iwl_read_targ_mem(priv
, base
+ 11 * sizeof(u32
));
1835 trace_iwlwifi_dev_ucode_error(priv
, desc
, time
, data1
, data2
, line
,
1836 blink1
, blink2
, ilink1
, ilink2
);
1838 IWL_ERR(priv
, "Desc Time "
1839 "data1 data2 line\n");
1840 IWL_ERR(priv
, "%-28s (#%02d) %010u 0x%08X 0x%08X %u\n",
1841 desc_lookup(desc
), desc
, time
, data1
, data2
, line
);
1842 IWL_ERR(priv
, "blink1 blink2 ilink1 ilink2\n");
1843 IWL_ERR(priv
, "0x%05X 0x%05X 0x%05X 0x%05X\n", blink1
, blink2
,
1848 #define EVENT_START_OFFSET (4 * sizeof(u32))
1851 * iwl_print_event_log - Dump error event log to syslog
1854 static int iwl_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
1855 u32 num_events
, u32 mode
,
1856 int pos
, char **buf
, size_t bufsz
)
1859 u32 base
; /* SRAM byte address of event log header */
1860 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
1861 u32 ptr
; /* SRAM byte address of log data */
1862 u32 ev
, time
, data
; /* event log data */
1863 unsigned long reg_flags
;
1865 if (num_events
== 0)
1867 if (priv
->ucode_type
== UCODE_INIT
)
1868 base
= le32_to_cpu(priv
->card_alive_init
.log_event_table_ptr
);
1870 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
1873 event_size
= 2 * sizeof(u32
);
1875 event_size
= 3 * sizeof(u32
);
1877 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
1879 /* Make sure device is powered up for SRAM reads */
1880 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
1881 iwl_grab_nic_access(priv
);
1883 /* Set starting address; reads will auto-increment */
1884 _iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
1887 /* "time" is actually "data" for mode 0 (no timestamp).
1888 * place event id # at far right for easier visual parsing. */
1889 for (i
= 0; i
< num_events
; i
++) {
1890 ev
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
1891 time
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
1895 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
1896 "EVT_LOG:0x%08x:%04u\n",
1899 trace_iwlwifi_dev_ucode_event(priv
, 0,
1901 IWL_ERR(priv
, "EVT_LOG:0x%08x:%04u\n",
1905 data
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
1907 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
1908 "EVT_LOGT:%010u:0x%08x:%04u\n",
1911 IWL_ERR(priv
, "EVT_LOGT:%010u:0x%08x:%04u\n",
1913 trace_iwlwifi_dev_ucode_event(priv
, time
,
1919 /* Allow device to power down */
1920 iwl_release_nic_access(priv
);
1921 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
1926 * iwl_print_last_event_logs - Dump the newest # of event log to syslog
1928 static int iwl_print_last_event_logs(struct iwl_priv
*priv
, u32 capacity
,
1929 u32 num_wraps
, u32 next_entry
,
1931 int pos
, char **buf
, size_t bufsz
)
1934 * display the newest DEFAULT_LOG_ENTRIES entries
1935 * i.e the entries just before the next ont that uCode would fill.
1938 if (next_entry
< size
) {
1939 pos
= iwl_print_event_log(priv
,
1940 capacity
- (size
- next_entry
),
1941 size
- next_entry
, mode
,
1943 pos
= iwl_print_event_log(priv
, 0,
1947 pos
= iwl_print_event_log(priv
, next_entry
- size
,
1948 size
, mode
, pos
, buf
, bufsz
);
1950 if (next_entry
< size
) {
1951 pos
= iwl_print_event_log(priv
, 0, next_entry
,
1952 mode
, pos
, buf
, bufsz
);
1954 pos
= iwl_print_event_log(priv
, next_entry
- size
,
1955 size
, mode
, pos
, buf
, bufsz
);
1961 /* For sanity check only. Actual size is determined by uCode, typ. 512 */
1962 #define MAX_EVENT_LOG_SIZE (512)
1964 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
1966 int iwl_dump_nic_event_log(struct iwl_priv
*priv
, bool full_log
,
1967 char **buf
, bool display
)
1969 u32 base
; /* SRAM byte address of event log header */
1970 u32 capacity
; /* event log capacity in # entries */
1971 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
1972 u32 num_wraps
; /* # times uCode wrapped to top of log */
1973 u32 next_entry
; /* index of next entry to be written by uCode */
1974 u32 size
; /* # entries that we'll print */
1978 if (priv
->ucode_type
== UCODE_INIT
)
1979 base
= le32_to_cpu(priv
->card_alive_init
.log_event_table_ptr
);
1981 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
1983 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
1985 "Invalid event log pointer 0x%08X for %s uCode\n",
1986 base
, (priv
->ucode_type
== UCODE_INIT
) ? "Init" : "RT");
1990 /* event log header */
1991 capacity
= iwl_read_targ_mem(priv
, base
);
1992 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
1993 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
1994 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
1996 if (capacity
> MAX_EVENT_LOG_SIZE
) {
1997 IWL_ERR(priv
, "Log capacity %d is bogus, limit to %d entries\n",
1998 capacity
, MAX_EVENT_LOG_SIZE
);
1999 capacity
= MAX_EVENT_LOG_SIZE
;
2002 if (next_entry
> MAX_EVENT_LOG_SIZE
) {
2003 IWL_ERR(priv
, "Log write index %d is bogus, limit to %d\n",
2004 next_entry
, MAX_EVENT_LOG_SIZE
);
2005 next_entry
= MAX_EVENT_LOG_SIZE
;
2008 size
= num_wraps
? capacity
: next_entry
;
2010 /* bail out if nothing in log */
2012 IWL_ERR(priv
, "Start IWL Event Log Dump: nothing in log\n");
2016 #ifdef CONFIG_IWLWIFI_DEBUG
2017 if (!(iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) && !full_log
)
2018 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
2019 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
2021 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
2022 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
2024 IWL_ERR(priv
, "Start IWL Event Log Dump: display last %u entries\n",
2027 #ifdef CONFIG_IWLWIFI_DEBUG
2030 bufsz
= capacity
* 48;
2033 *buf
= kmalloc(bufsz
, GFP_KERNEL
);
2037 if ((iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) || full_log
) {
2039 * if uCode has wrapped back to top of log,
2040 * start at the oldest entry,
2041 * i.e the next one that uCode would fill.
2044 pos
= iwl_print_event_log(priv
, next_entry
,
2045 capacity
- next_entry
, mode
,
2047 /* (then/else) start at top of log */
2048 pos
= iwl_print_event_log(priv
, 0,
2049 next_entry
, mode
, pos
, buf
, bufsz
);
2051 pos
= iwl_print_last_event_logs(priv
, capacity
, num_wraps
,
2052 next_entry
, size
, mode
,
2055 pos
= iwl_print_last_event_logs(priv
, capacity
, num_wraps
,
2056 next_entry
, size
, mode
,
2063 * iwl_alive_start - called after REPLY_ALIVE notification received
2064 * from protocol/runtime uCode (initialization uCode's
2065 * Alive gets handled by iwl_init_alive_start()).
2067 static void iwl_alive_start(struct iwl_priv
*priv
)
2071 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
2073 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
2074 /* We had an error bringing up the hardware, so take it
2075 * all the way back down so we can try again */
2076 IWL_DEBUG_INFO(priv
, "Alive failed.\n");
2080 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
2081 * This is a paranoid check, because we would not have gotten the
2082 * "runtime" alive if code weren't properly loaded. */
2083 if (iwl_verify_ucode(priv
)) {
2084 /* Runtime instruction load was bad;
2085 * take it all the way back down so we can try again */
2086 IWL_DEBUG_INFO(priv
, "Bad runtime uCode load.\n");
2090 iwl_clear_stations_table(priv
);
2091 ret
= priv
->cfg
->ops
->lib
->alive_notify(priv
);
2094 "Could not complete ALIVE transition [ntf]: %d\n", ret
);
2098 /* After the ALIVE response, we can send host commands to the uCode */
2099 set_bit(STATUS_ALIVE
, &priv
->status
);
2101 if (iwl_is_rfkill(priv
))
2104 ieee80211_wake_queues(priv
->hw
);
2106 priv
->active_rate
= IWL_RATES_MASK
;
2108 /* Configure Tx antenna selection based on H/W config */
2109 if (priv
->cfg
->ops
->hcmd
->set_tx_ant
)
2110 priv
->cfg
->ops
->hcmd
->set_tx_ant(priv
, priv
->cfg
->valid_tx_ant
);
2112 if (iwl_is_associated(priv
)) {
2113 struct iwl_rxon_cmd
*active_rxon
=
2114 (struct iwl_rxon_cmd
*)&priv
->active_rxon
;
2115 /* apply any changes in staging */
2116 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
2117 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2119 /* Initialize our rx_config data */
2120 iwl_connection_init_rx_config(priv
, priv
->iw_mode
);
2122 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2123 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2125 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2128 /* Configure Bluetooth device coexistence support */
2129 iwl_send_bt_config(priv
);
2131 iwl_reset_run_time_calib(priv
);
2133 /* Configure the adapter for unassociated operation */
2134 iwlcore_commit_rxon(priv
);
2136 /* At this point, the NIC is initialized and operational */
2137 iwl_rf_kill_ct_config(priv
);
2139 iwl_leds_init(priv
);
2141 IWL_DEBUG_INFO(priv
, "ALIVE processing complete.\n");
2142 set_bit(STATUS_READY
, &priv
->status
);
2143 wake_up_interruptible(&priv
->wait_command_queue
);
2145 iwl_power_update_mode(priv
, true);
2150 queue_work(priv
->workqueue
, &priv
->restart
);
2153 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
);
2155 static void __iwl_down(struct iwl_priv
*priv
)
2157 unsigned long flags
;
2158 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2160 IWL_DEBUG_INFO(priv
, DRV_NAME
" is going down\n");
2163 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2165 iwl_clear_stations_table(priv
);
2167 /* Unblock any waiting calls */
2168 wake_up_interruptible_all(&priv
->wait_command_queue
);
2170 /* Wipe out the EXIT_PENDING status bit if we are not actually
2171 * exiting the module */
2173 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2175 /* stop and reset the on-board processor */
2176 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
2178 /* tell the device to stop sending interrupts */
2179 spin_lock_irqsave(&priv
->lock
, flags
);
2180 iwl_disable_interrupts(priv
);
2181 spin_unlock_irqrestore(&priv
->lock
, flags
);
2182 iwl_synchronize_irq(priv
);
2184 if (priv
->mac80211_registered
)
2185 ieee80211_stop_queues(priv
->hw
);
2187 /* If we have not previously called iwl_init() then
2188 * clear all bits but the RF Kill bit and return */
2189 if (!iwl_is_init(priv
)) {
2190 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
2192 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
2193 STATUS_GEO_CONFIGURED
|
2194 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
2195 STATUS_EXIT_PENDING
;
2199 /* ...otherwise clear out all the status bits but the RF Kill
2200 * bit and continue taking the NIC down. */
2201 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
2203 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
2204 STATUS_GEO_CONFIGURED
|
2205 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
2207 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
2208 STATUS_EXIT_PENDING
;
2210 /* device going down, Stop using ICT table */
2211 iwl_disable_ict(priv
);
2213 iwl_txq_ctx_stop(priv
);
2216 /* Power-down device's busmaster DMA clocks */
2217 iwl_write_prph(priv
, APMG_CLK_DIS_REG
, APMG_CLK_VAL_DMA_CLK_RQT
);
2220 /* Make sure (redundant) we've released our request to stay awake */
2221 iwl_clear_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
2223 /* Stop the device, and put it in low power state */
2224 priv
->cfg
->ops
->lib
->apm_ops
.stop(priv
);
2227 memset(&priv
->card_alive
, 0, sizeof(struct iwl_alive_resp
));
2229 if (priv
->ibss_beacon
)
2230 dev_kfree_skb(priv
->ibss_beacon
);
2231 priv
->ibss_beacon
= NULL
;
2233 /* clear out any free frames */
2234 iwl_clear_free_frames(priv
);
2237 static void iwl_down(struct iwl_priv
*priv
)
2239 mutex_lock(&priv
->mutex
);
2241 mutex_unlock(&priv
->mutex
);
2243 iwl_cancel_deferred_work(priv
);
2246 #define HW_READY_TIMEOUT (50)
2248 static int iwl_set_hw_ready(struct iwl_priv
*priv
)
2252 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
2253 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
);
2255 /* See if we got it */
2256 ret
= iwl_poll_bit(priv
, CSR_HW_IF_CONFIG_REG
,
2257 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
,
2258 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
,
2260 if (ret
!= -ETIMEDOUT
)
2261 priv
->hw_ready
= true;
2263 priv
->hw_ready
= false;
2265 IWL_DEBUG_INFO(priv
, "hardware %s\n",
2266 (priv
->hw_ready
== 1) ? "ready" : "not ready");
2270 static int iwl_prepare_card_hw(struct iwl_priv
*priv
)
2274 IWL_DEBUG_INFO(priv
, "iwl_prepare_card_hw enter \n");
2276 ret
= iwl_set_hw_ready(priv
);
2280 /* If HW is not ready, prepare the conditions to check again */
2281 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
2282 CSR_HW_IF_CONFIG_REG_PREPARE
);
2284 ret
= iwl_poll_bit(priv
, CSR_HW_IF_CONFIG_REG
,
2285 ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE
,
2286 CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE
, 150000);
2288 /* HW should be ready by now, check again. */
2289 if (ret
!= -ETIMEDOUT
)
2290 iwl_set_hw_ready(priv
);
2295 #define MAX_HW_RESTARTS 5
2297 static int __iwl_up(struct iwl_priv
*priv
)
2302 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
2303 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
2307 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
2308 IWL_ERR(priv
, "ucode not available for device bringup\n");
2312 iwl_prepare_card_hw(priv
);
2314 if (!priv
->hw_ready
) {
2315 IWL_WARN(priv
, "Exit HW not ready\n");
2319 /* If platform's RF_KILL switch is NOT set to KILL */
2320 if (iwl_read32(priv
, CSR_GP_CNTRL
) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
2321 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2323 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2325 if (iwl_is_rfkill(priv
)) {
2326 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
, true);
2328 iwl_enable_interrupts(priv
);
2329 IWL_WARN(priv
, "Radio disabled by HW RF Kill switch\n");
2333 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
2335 ret
= iwl_hw_nic_init(priv
);
2337 IWL_ERR(priv
, "Unable to init nic\n");
2341 /* make sure rfkill handshake bits are cleared */
2342 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2343 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
2344 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
2346 /* clear (again), then enable host interrupts */
2347 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
2348 iwl_enable_interrupts(priv
);
2350 /* really make sure rfkill handshake bits are cleared */
2351 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2352 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2354 /* Copy original ucode data image from disk into backup cache.
2355 * This will be used to initialize the on-board processor's
2356 * data SRAM for a clean start when the runtime program first loads. */
2357 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
2358 priv
->ucode_data
.len
);
2360 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
2362 iwl_clear_stations_table(priv
);
2364 /* load bootstrap state machine,
2365 * load bootstrap program into processor's memory,
2366 * prepare to load the "initialize" uCode */
2367 ret
= priv
->cfg
->ops
->lib
->load_ucode(priv
);
2370 IWL_ERR(priv
, "Unable to set up bootstrap uCode: %d\n",
2375 /* start card; "initialize" will load runtime ucode */
2376 iwl_nic_start(priv
);
2378 IWL_DEBUG_INFO(priv
, DRV_NAME
" is coming up\n");
2383 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2385 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2387 /* tried to restart and config the device for as long as our
2388 * patience could withstand */
2389 IWL_ERR(priv
, "Unable to initialize device after %d attempts.\n", i
);
2394 /*****************************************************************************
2396 * Workqueue callbacks
2398 *****************************************************************************/
2400 static void iwl_bg_init_alive_start(struct work_struct
*data
)
2402 struct iwl_priv
*priv
=
2403 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
2405 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2408 mutex_lock(&priv
->mutex
);
2409 priv
->cfg
->ops
->lib
->init_alive_start(priv
);
2410 mutex_unlock(&priv
->mutex
);
2413 static void iwl_bg_alive_start(struct work_struct
*data
)
2415 struct iwl_priv
*priv
=
2416 container_of(data
, struct iwl_priv
, alive_start
.work
);
2418 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2421 /* enable dram interrupt */
2422 iwl_reset_ict(priv
);
2424 mutex_lock(&priv
->mutex
);
2425 iwl_alive_start(priv
);
2426 mutex_unlock(&priv
->mutex
);
2429 static void iwl_bg_run_time_calib_work(struct work_struct
*work
)
2431 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
2432 run_time_calib_work
);
2434 mutex_lock(&priv
->mutex
);
2436 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
2437 test_bit(STATUS_SCANNING
, &priv
->status
)) {
2438 mutex_unlock(&priv
->mutex
);
2442 if (priv
->start_calib
) {
2443 iwl_chain_noise_calibration(priv
, &priv
->statistics
);
2445 iwl_sensitivity_calibration(priv
, &priv
->statistics
);
2448 mutex_unlock(&priv
->mutex
);
2452 static void iwl_bg_restart(struct work_struct
*data
)
2454 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
2456 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2459 if (test_and_clear_bit(STATUS_FW_ERROR
, &priv
->status
)) {
2460 mutex_lock(&priv
->mutex
);
2463 mutex_unlock(&priv
->mutex
);
2465 ieee80211_restart_hw(priv
->hw
);
2469 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2472 mutex_lock(&priv
->mutex
);
2474 mutex_unlock(&priv
->mutex
);
2478 static void iwl_bg_rx_replenish(struct work_struct
*data
)
2480 struct iwl_priv
*priv
=
2481 container_of(data
, struct iwl_priv
, rx_replenish
);
2483 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2486 mutex_lock(&priv
->mutex
);
2487 iwl_rx_replenish(priv
);
2488 mutex_unlock(&priv
->mutex
);
2491 #define IWL_DELAY_NEXT_SCAN (HZ*2)
2493 void iwl_post_associate(struct iwl_priv
*priv
)
2495 struct ieee80211_conf
*conf
= NULL
;
2497 unsigned long flags
;
2499 if (priv
->iw_mode
== NL80211_IFTYPE_AP
) {
2500 IWL_ERR(priv
, "%s Should not be called in AP mode\n", __func__
);
2504 IWL_DEBUG_ASSOC(priv
, "Associated as %d to: %pM\n",
2505 priv
->assoc_id
, priv
->active_rxon
.bssid_addr
);
2508 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2512 if (!priv
->vif
|| !priv
->is_open
)
2515 iwl_scan_cancel_timeout(priv
, 200);
2517 conf
= ieee80211_get_hw_conf(priv
->hw
);
2519 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2520 iwlcore_commit_rxon(priv
);
2522 iwl_setup_rxon_timing(priv
);
2523 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
2524 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
2526 IWL_WARN(priv
, "REPLY_RXON_TIMING failed - "
2527 "Attempting to continue.\n");
2529 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
2531 iwl_set_rxon_ht(priv
, &priv
->current_ht_config
);
2533 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2534 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2536 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
2538 IWL_DEBUG_ASSOC(priv
, "assoc id %d beacon interval %d\n",
2539 priv
->assoc_id
, priv
->beacon_int
);
2541 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
2542 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2544 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2546 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
2547 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
2548 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2550 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2552 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
2553 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2557 iwlcore_commit_rxon(priv
);
2559 switch (priv
->iw_mode
) {
2560 case NL80211_IFTYPE_STATION
:
2563 case NL80211_IFTYPE_ADHOC
:
2565 /* assume default assoc id */
2568 iwl_rxon_add_station(priv
, priv
->bssid
, 0);
2569 iwl_send_beacon_cmd(priv
);
2574 IWL_ERR(priv
, "%s Should not be called in %d mode\n",
2575 __func__
, priv
->iw_mode
);
2579 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
2580 priv
->assoc_station_added
= 1;
2582 spin_lock_irqsave(&priv
->lock
, flags
);
2583 iwl_activate_qos(priv
, 0);
2584 spin_unlock_irqrestore(&priv
->lock
, flags
);
2586 /* the chain noise calibration will enabled PM upon completion
2587 * If chain noise has already been run, then we need to enable
2588 * power management here */
2589 if (priv
->chain_noise_data
.state
== IWL_CHAIN_NOISE_DONE
)
2590 iwl_power_update_mode(priv
, false);
2592 /* Enable Rx differential gain and sensitivity calibrations */
2593 iwl_chain_noise_reset(priv
);
2594 priv
->start_calib
= 1;
2598 /*****************************************************************************
2600 * mac80211 entry point functions
2602 *****************************************************************************/
2604 #define UCODE_READY_TIMEOUT (4 * HZ)
2607 * Not a mac80211 entry point function, but it fits in with all the
2608 * other mac80211 functions grouped here.
2610 static int iwl_mac_setup_register(struct iwl_priv
*priv
)
2613 struct ieee80211_hw
*hw
= priv
->hw
;
2614 hw
->rate_control_algorithm
= "iwl-agn-rs";
2616 /* Tell mac80211 our characteristics */
2617 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
2618 IEEE80211_HW_NOISE_DBM
|
2619 IEEE80211_HW_AMPDU_AGGREGATION
|
2620 IEEE80211_HW_SPECTRUM_MGMT
;
2622 if (!priv
->cfg
->broken_powersave
)
2623 hw
->flags
|= IEEE80211_HW_SUPPORTS_PS
|
2624 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
;
2626 if (priv
->cfg
->sku
& IWL_SKU_N
)
2627 hw
->flags
|= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
2628 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
2630 hw
->sta_data_size
= sizeof(struct iwl_station_priv
);
2631 hw
->wiphy
->interface_modes
=
2632 BIT(NL80211_IFTYPE_STATION
) |
2633 BIT(NL80211_IFTYPE_ADHOC
);
2635 hw
->wiphy
->flags
|= WIPHY_FLAG_STRICT_REGULATORY
|
2636 WIPHY_FLAG_DISABLE_BEACON_HINTS
;
2639 * For now, disable PS by default because it affects
2640 * RX performance significantly.
2642 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
2644 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
2645 /* we create the 802.11 header and a zero-length SSID element */
2646 hw
->wiphy
->max_scan_ie_len
= IWL_MAX_PROBE_REQUEST
- 24 - 2;
2648 /* Default value; 4 EDCA QOS priorities */
2651 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
2653 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
2654 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
2655 &priv
->bands
[IEEE80211_BAND_2GHZ
];
2656 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
2657 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
2658 &priv
->bands
[IEEE80211_BAND_5GHZ
];
2660 ret
= ieee80211_register_hw(priv
->hw
);
2662 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
2665 priv
->mac80211_registered
= 1;
2671 static int iwl_mac_start(struct ieee80211_hw
*hw
)
2673 struct iwl_priv
*priv
= hw
->priv
;
2676 IWL_DEBUG_MAC80211(priv
, "enter\n");
2678 /* we should be verifying the device is ready to be opened */
2679 mutex_lock(&priv
->mutex
);
2680 ret
= __iwl_up(priv
);
2681 mutex_unlock(&priv
->mutex
);
2686 if (iwl_is_rfkill(priv
))
2689 IWL_DEBUG_INFO(priv
, "Start UP work done.\n");
2691 /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
2692 * mac80211 will not be run successfully. */
2693 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
2694 test_bit(STATUS_READY
, &priv
->status
),
2695 UCODE_READY_TIMEOUT
);
2697 if (!test_bit(STATUS_READY
, &priv
->status
)) {
2698 IWL_ERR(priv
, "START_ALIVE timeout after %dms.\n",
2699 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
2704 iwl_led_start(priv
);
2708 IWL_DEBUG_MAC80211(priv
, "leave\n");
2712 static void iwl_mac_stop(struct ieee80211_hw
*hw
)
2714 struct iwl_priv
*priv
= hw
->priv
;
2716 IWL_DEBUG_MAC80211(priv
, "enter\n");
2723 if (iwl_is_ready_rf(priv
) || test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
2724 /* stop mac, cancel any scan request and clear
2725 * RXON_FILTER_ASSOC_MSK BIT
2727 mutex_lock(&priv
->mutex
);
2728 iwl_scan_cancel_timeout(priv
, 100);
2729 mutex_unlock(&priv
->mutex
);
2734 flush_workqueue(priv
->workqueue
);
2736 /* enable interrupts again in order to receive rfkill changes */
2737 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
2738 iwl_enable_interrupts(priv
);
2740 IWL_DEBUG_MAC80211(priv
, "leave\n");
2743 static int iwl_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
2745 struct iwl_priv
*priv
= hw
->priv
;
2747 IWL_DEBUG_MACDUMP(priv
, "enter\n");
2749 IWL_DEBUG_TX(priv
, "dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
2750 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
2752 if (iwl_tx_skb(priv
, skb
))
2753 dev_kfree_skb_any(skb
);
2755 IWL_DEBUG_MACDUMP(priv
, "leave\n");
2756 return NETDEV_TX_OK
;
2759 void iwl_config_ap(struct iwl_priv
*priv
)
2762 unsigned long flags
;
2764 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2767 /* The following should be done only at AP bring up */
2768 if (!iwl_is_associated(priv
)) {
2770 /* RXON - unassoc (to set timing command) */
2771 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2772 iwlcore_commit_rxon(priv
);
2775 iwl_setup_rxon_timing(priv
);
2776 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
2777 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
2779 IWL_WARN(priv
, "REPLY_RXON_TIMING failed - "
2780 "Attempting to continue.\n");
2782 /* AP has all antennas */
2783 priv
->chain_noise_data
.active_chains
=
2784 priv
->hw_params
.valid_rx_ant
;
2785 iwl_set_rxon_ht(priv
, &priv
->current_ht_config
);
2786 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2787 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2789 /* FIXME: what should be the assoc_id for AP? */
2790 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
2791 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
2792 priv
->staging_rxon
.flags
|=
2793 RXON_FLG_SHORT_PREAMBLE_MSK
;
2795 priv
->staging_rxon
.flags
&=
2796 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2798 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
2799 if (priv
->assoc_capability
&
2800 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
2801 priv
->staging_rxon
.flags
|=
2802 RXON_FLG_SHORT_SLOT_MSK
;
2804 priv
->staging_rxon
.flags
&=
2805 ~RXON_FLG_SHORT_SLOT_MSK
;
2807 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
2808 priv
->staging_rxon
.flags
&=
2809 ~RXON_FLG_SHORT_SLOT_MSK
;
2811 /* restore RXON assoc */
2812 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
2813 iwlcore_commit_rxon(priv
);
2814 iwl_reset_qos(priv
);
2815 spin_lock_irqsave(&priv
->lock
, flags
);
2816 iwl_activate_qos(priv
, 1);
2817 spin_unlock_irqrestore(&priv
->lock
, flags
);
2818 iwl_add_bcast_station(priv
);
2820 iwl_send_beacon_cmd(priv
);
2822 /* FIXME - we need to add code here to detect a totally new
2823 * configuration, reset the AP, unassoc, rxon timing, assoc,
2824 * clear sta table, add BCAST sta... */
2827 static void iwl_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2828 struct ieee80211_vif
*vif
,
2829 struct ieee80211_key_conf
*keyconf
,
2830 struct ieee80211_sta
*sta
,
2831 u32 iv32
, u16
*phase1key
)
2834 struct iwl_priv
*priv
= hw
->priv
;
2835 IWL_DEBUG_MAC80211(priv
, "enter\n");
2837 iwl_update_tkip_key(priv
, keyconf
,
2838 sta
? sta
->addr
: iwl_bcast_addr
,
2841 IWL_DEBUG_MAC80211(priv
, "leave\n");
2844 static int iwl_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
2845 struct ieee80211_vif
*vif
,
2846 struct ieee80211_sta
*sta
,
2847 struct ieee80211_key_conf
*key
)
2849 struct iwl_priv
*priv
= hw
->priv
;
2853 bool is_default_wep_key
= false;
2855 IWL_DEBUG_MAC80211(priv
, "enter\n");
2857 if (priv
->cfg
->mod_params
->sw_crypto
) {
2858 IWL_DEBUG_MAC80211(priv
, "leave - hwcrypto disabled\n");
2861 addr
= sta
? sta
->addr
: iwl_bcast_addr
;
2862 sta_id
= iwl_find_station(priv
, addr
);
2863 if (sta_id
== IWL_INVALID_STATION
) {
2864 IWL_DEBUG_MAC80211(priv
, "leave - %pM not in station map.\n",
2870 mutex_lock(&priv
->mutex
);
2871 iwl_scan_cancel_timeout(priv
, 100);
2873 /* If we are getting WEP group key and we didn't receive any key mapping
2874 * so far, we are in legacy wep mode (group key only), otherwise we are
2876 * In legacy wep mode, we use another host command to the uCode */
2877 if (key
->alg
== ALG_WEP
&& sta_id
== priv
->hw_params
.bcast_sta_id
&&
2878 priv
->iw_mode
!= NL80211_IFTYPE_AP
) {
2880 is_default_wep_key
= !priv
->key_mapping_key
;
2882 is_default_wep_key
=
2883 (key
->hw_key_idx
== HW_KEY_DEFAULT
);
2888 if (is_default_wep_key
)
2889 ret
= iwl_set_default_wep_key(priv
, key
);
2891 ret
= iwl_set_dynamic_key(priv
, key
, sta_id
);
2893 IWL_DEBUG_MAC80211(priv
, "enable hwcrypto key\n");
2896 if (is_default_wep_key
)
2897 ret
= iwl_remove_default_wep_key(priv
, key
);
2899 ret
= iwl_remove_dynamic_key(priv
, key
, sta_id
);
2901 IWL_DEBUG_MAC80211(priv
, "disable hwcrypto key\n");
2907 mutex_unlock(&priv
->mutex
);
2908 IWL_DEBUG_MAC80211(priv
, "leave\n");
2913 static int iwl_mac_ampdu_action(struct ieee80211_hw
*hw
,
2914 struct ieee80211_vif
*vif
,
2915 enum ieee80211_ampdu_mlme_action action
,
2916 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
)
2918 struct iwl_priv
*priv
= hw
->priv
;
2921 IWL_DEBUG_HT(priv
, "A-MPDU action on addr %pM tid %d\n",
2924 if (!(priv
->cfg
->sku
& IWL_SKU_N
))
2928 case IEEE80211_AMPDU_RX_START
:
2929 IWL_DEBUG_HT(priv
, "start Rx\n");
2930 return iwl_sta_rx_agg_start(priv
, sta
->addr
, tid
, *ssn
);
2931 case IEEE80211_AMPDU_RX_STOP
:
2932 IWL_DEBUG_HT(priv
, "stop Rx\n");
2933 ret
= iwl_sta_rx_agg_stop(priv
, sta
->addr
, tid
);
2934 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2938 case IEEE80211_AMPDU_TX_START
:
2939 IWL_DEBUG_HT(priv
, "start Tx\n");
2940 return iwl_tx_agg_start(priv
, sta
->addr
, tid
, ssn
);
2941 case IEEE80211_AMPDU_TX_STOP
:
2942 IWL_DEBUG_HT(priv
, "stop Tx\n");
2943 ret
= iwl_tx_agg_stop(priv
, sta
->addr
, tid
);
2944 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2948 case IEEE80211_AMPDU_TX_OPERATIONAL
:
2952 IWL_DEBUG_HT(priv
, "unknown\n");
2959 static int iwl_mac_get_stats(struct ieee80211_hw
*hw
,
2960 struct ieee80211_low_level_stats
*stats
)
2962 struct iwl_priv
*priv
= hw
->priv
;
2965 IWL_DEBUG_MAC80211(priv
, "enter\n");
2966 IWL_DEBUG_MAC80211(priv
, "leave\n");
2971 static void iwl_mac_sta_notify(struct ieee80211_hw
*hw
,
2972 struct ieee80211_vif
*vif
,
2973 enum sta_notify_cmd cmd
,
2974 struct ieee80211_sta
*sta
)
2976 struct iwl_priv
*priv
= hw
->priv
;
2977 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
2981 * TODO: We really should use this callback to
2982 * actually maintain the station table in
2987 case STA_NOTIFY_ADD
:
2988 atomic_set(&sta_priv
->pending_frames
, 0);
2989 if (vif
->type
== NL80211_IFTYPE_AP
)
2990 sta_priv
->client
= true;
2992 case STA_NOTIFY_SLEEP
:
2993 WARN_ON(!sta_priv
->client
);
2994 sta_priv
->asleep
= true;
2995 if (atomic_read(&sta_priv
->pending_frames
) > 0)
2996 ieee80211_sta_block_awake(hw
, sta
, true);
2998 case STA_NOTIFY_AWAKE
:
2999 WARN_ON(!sta_priv
->client
);
3000 if (!sta_priv
->asleep
)
3002 sta_priv
->asleep
= false;
3003 sta_id
= iwl_find_station(priv
, sta
->addr
);
3004 if (sta_id
!= IWL_INVALID_STATION
)
3005 iwl_sta_modify_ps_wake(priv
, sta_id
);
3012 /*****************************************************************************
3016 *****************************************************************************/
3018 #ifdef CONFIG_IWLWIFI_DEBUG
3021 * The following adds a new attribute to the sysfs representation
3022 * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
3023 * used for controlling the debug level.
3025 * See the level definitions in iwl for details.
3027 * The debug_level being managed using sysfs below is a per device debug
3028 * level that is used instead of the global debug level if it (the per
3029 * device debug level) is set.
3031 static ssize_t
show_debug_level(struct device
*d
,
3032 struct device_attribute
*attr
, char *buf
)
3034 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3035 return sprintf(buf
, "0x%08X\n", iwl_get_debug_level(priv
));
3037 static ssize_t
store_debug_level(struct device
*d
,
3038 struct device_attribute
*attr
,
3039 const char *buf
, size_t count
)
3041 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3045 ret
= strict_strtoul(buf
, 0, &val
);
3047 IWL_ERR(priv
, "%s is not in hex or decimal form.\n", buf
);
3049 priv
->debug_level
= val
;
3050 if (iwl_alloc_traffic_mem(priv
))
3052 "Not enough memory to generate traffic log\n");
3054 return strnlen(buf
, count
);
3057 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
3058 show_debug_level
, store_debug_level
);
3061 #endif /* CONFIG_IWLWIFI_DEBUG */
3064 static ssize_t
show_temperature(struct device
*d
,
3065 struct device_attribute
*attr
, char *buf
)
3067 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3069 if (!iwl_is_alive(priv
))
3072 return sprintf(buf
, "%d\n", priv
->temperature
);
3075 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
3077 static ssize_t
show_tx_power(struct device
*d
,
3078 struct device_attribute
*attr
, char *buf
)
3080 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3082 if (!iwl_is_ready_rf(priv
))
3083 return sprintf(buf
, "off\n");
3085 return sprintf(buf
, "%d\n", priv
->tx_power_user_lmt
);
3088 static ssize_t
store_tx_power(struct device
*d
,
3089 struct device_attribute
*attr
,
3090 const char *buf
, size_t count
)
3092 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3096 ret
= strict_strtoul(buf
, 10, &val
);
3098 IWL_INFO(priv
, "%s is not in decimal form.\n", buf
);
3100 ret
= iwl_set_tx_power(priv
, val
, false);
3102 IWL_ERR(priv
, "failed setting tx power (0x%d).\n",
3110 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
3112 static ssize_t
show_statistics(struct device
*d
,
3113 struct device_attribute
*attr
, char *buf
)
3115 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3116 u32 size
= sizeof(struct iwl_notif_statistics
);
3117 u32 len
= 0, ofs
= 0;
3118 u8
*data
= (u8
*)&priv
->statistics
;
3121 if (!iwl_is_alive(priv
))
3124 mutex_lock(&priv
->mutex
);
3125 rc
= iwl_send_statistics_request(priv
, CMD_SYNC
, false);
3126 mutex_unlock(&priv
->mutex
);
3130 "Error sending statistics request: 0x%08X\n", rc
);
3134 while (size
&& (PAGE_SIZE
- len
)) {
3135 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
3136 PAGE_SIZE
- len
, 1);
3138 if (PAGE_SIZE
- len
)
3142 size
-= min(size
, 16U);
3148 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
3150 static ssize_t
show_rts_ht_protection(struct device
*d
,
3151 struct device_attribute
*attr
, char *buf
)
3153 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3155 return sprintf(buf
, "%s\n",
3156 priv
->cfg
->use_rts_for_ht
? "RTS/CTS" : "CTS-to-self");
3159 static ssize_t
store_rts_ht_protection(struct device
*d
,
3160 struct device_attribute
*attr
,
3161 const char *buf
, size_t count
)
3163 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3167 ret
= strict_strtoul(buf
, 10, &val
);
3169 IWL_INFO(priv
, "Input is not in decimal form.\n");
3171 if (!iwl_is_associated(priv
))
3172 priv
->cfg
->use_rts_for_ht
= val
? true : false;
3174 IWL_ERR(priv
, "Sta associated with AP - "
3175 "Change protection mechanism is not allowed\n");
3181 static DEVICE_ATTR(rts_ht_protection
, S_IWUSR
| S_IRUGO
,
3182 show_rts_ht_protection
, store_rts_ht_protection
);
3185 /*****************************************************************************
3187 * driver setup and teardown
3189 *****************************************************************************/
3191 static void iwl_setup_deferred_work(struct iwl_priv
*priv
)
3193 priv
->workqueue
= create_singlethread_workqueue(DRV_NAME
);
3195 init_waitqueue_head(&priv
->wait_command_queue
);
3197 INIT_WORK(&priv
->restart
, iwl_bg_restart
);
3198 INIT_WORK(&priv
->rx_replenish
, iwl_bg_rx_replenish
);
3199 INIT_WORK(&priv
->beacon_update
, iwl_bg_beacon_update
);
3200 INIT_WORK(&priv
->run_time_calib_work
, iwl_bg_run_time_calib_work
);
3201 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl_bg_init_alive_start
);
3202 INIT_DELAYED_WORK(&priv
->alive_start
, iwl_bg_alive_start
);
3204 iwl_setup_scan_deferred_work(priv
);
3206 if (priv
->cfg
->ops
->lib
->setup_deferred_work
)
3207 priv
->cfg
->ops
->lib
->setup_deferred_work(priv
);
3209 init_timer(&priv
->statistics_periodic
);
3210 priv
->statistics_periodic
.data
= (unsigned long)priv
;
3211 priv
->statistics_periodic
.function
= iwl_bg_statistics_periodic
;
3213 init_timer(&priv
->ucode_trace
);
3214 priv
->ucode_trace
.data
= (unsigned long)priv
;
3215 priv
->ucode_trace
.function
= iwl_bg_ucode_trace
;
3217 if (!priv
->cfg
->use_isr_legacy
)
3218 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
3219 iwl_irq_tasklet
, (unsigned long)priv
);
3221 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
3222 iwl_irq_tasklet_legacy
, (unsigned long)priv
);
3225 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
)
3227 if (priv
->cfg
->ops
->lib
->cancel_deferred_work
)
3228 priv
->cfg
->ops
->lib
->cancel_deferred_work(priv
);
3230 cancel_delayed_work_sync(&priv
->init_alive_start
);
3231 cancel_delayed_work(&priv
->scan_check
);
3232 cancel_delayed_work(&priv
->alive_start
);
3233 cancel_work_sync(&priv
->beacon_update
);
3234 del_timer_sync(&priv
->statistics_periodic
);
3235 del_timer_sync(&priv
->ucode_trace
);
3238 static void iwl_init_hw_rates(struct iwl_priv
*priv
,
3239 struct ieee80211_rate
*rates
)
3243 for (i
= 0; i
< IWL_RATE_COUNT_LEGACY
; i
++) {
3244 rates
[i
].bitrate
= iwl_rates
[i
].ieee
* 5;
3245 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
3246 rates
[i
].hw_value_short
= i
;
3248 if ((i
>= IWL_FIRST_CCK_RATE
) && (i
<= IWL_LAST_CCK_RATE
)) {
3250 * If CCK != 1M then set short preamble rate flag.
3253 (iwl_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
3254 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
3259 static int iwl_init_drv(struct iwl_priv
*priv
)
3263 priv
->ibss_beacon
= NULL
;
3265 spin_lock_init(&priv
->sta_lock
);
3266 spin_lock_init(&priv
->hcmd_lock
);
3268 INIT_LIST_HEAD(&priv
->free_frames
);
3270 mutex_init(&priv
->mutex
);
3271 mutex_init(&priv
->sync_cmd_mutex
);
3273 /* Clear the driver's (not device's) station table */
3274 iwl_clear_stations_table(priv
);
3276 priv
->ieee_channels
= NULL
;
3277 priv
->ieee_rates
= NULL
;
3278 priv
->band
= IEEE80211_BAND_2GHZ
;
3280 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
3281 priv
->current_ht_config
.smps
= IEEE80211_SMPS_STATIC
;
3282 priv
->missed_beacon_threshold
= IWL_MISSED_BEACON_THRESHOLD_DEF
;
3284 /* initialize force reset */
3285 priv
->force_reset
[IWL_RF_RESET
].reset_duration
=
3286 IWL_DELAY_NEXT_FORCE_RF_RESET
;
3287 priv
->force_reset
[IWL_FW_RESET
].reset_duration
=
3288 IWL_DELAY_NEXT_FORCE_FW_RELOAD
;
3290 /* Choose which receivers/antennas to use */
3291 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
3292 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
3294 iwl_init_scan_params(priv
);
3296 iwl_reset_qos(priv
);
3298 priv
->qos_data
.qos_active
= 0;
3299 priv
->qos_data
.qos_cap
.val
= 0;
3301 /* Set the tx_power_user_lmt to the lowest power level
3302 * this value will get overwritten by channel max power avg
3304 priv
->tx_power_user_lmt
= IWL_TX_POWER_TARGET_POWER_MIN
;
3306 ret
= iwl_init_channel_map(priv
);
3308 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
3312 ret
= iwlcore_init_geos(priv
);
3314 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
3315 goto err_free_channel_map
;
3317 iwl_init_hw_rates(priv
, priv
->ieee_rates
);
3321 err_free_channel_map
:
3322 iwl_free_channel_map(priv
);
3327 static void iwl_uninit_drv(struct iwl_priv
*priv
)
3329 iwl_calib_free_results(priv
);
3330 iwlcore_free_geos(priv
);
3331 iwl_free_channel_map(priv
);
3335 static struct attribute
*iwl_sysfs_entries
[] = {
3336 &dev_attr_statistics
.attr
,
3337 &dev_attr_temperature
.attr
,
3338 &dev_attr_tx_power
.attr
,
3339 &dev_attr_rts_ht_protection
.attr
,
3340 #ifdef CONFIG_IWLWIFI_DEBUG
3341 &dev_attr_debug_level
.attr
,
3346 static struct attribute_group iwl_attribute_group
= {
3347 .name
= NULL
, /* put in device directory */
3348 .attrs
= iwl_sysfs_entries
,
3351 static struct ieee80211_ops iwl_hw_ops
= {
3353 .start
= iwl_mac_start
,
3354 .stop
= iwl_mac_stop
,
3355 .add_interface
= iwl_mac_add_interface
,
3356 .remove_interface
= iwl_mac_remove_interface
,
3357 .config
= iwl_mac_config
,
3358 .configure_filter
= iwl_configure_filter
,
3359 .set_key
= iwl_mac_set_key
,
3360 .update_tkip_key
= iwl_mac_update_tkip_key
,
3361 .get_stats
= iwl_mac_get_stats
,
3362 .conf_tx
= iwl_mac_conf_tx
,
3363 .reset_tsf
= iwl_mac_reset_tsf
,
3364 .bss_info_changed
= iwl_bss_info_changed
,
3365 .ampdu_action
= iwl_mac_ampdu_action
,
3366 .hw_scan
= iwl_mac_hw_scan
,
3367 .sta_notify
= iwl_mac_sta_notify
,
3370 static int iwl_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
3373 struct iwl_priv
*priv
;
3374 struct ieee80211_hw
*hw
;
3375 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
3376 unsigned long flags
;
3379 /************************
3380 * 1. Allocating HW data
3381 ************************/
3383 /* Disabling hardware scan means that mac80211 will perform scans
3384 * "the hard way", rather than using device's scan. */
3385 if (cfg
->mod_params
->disable_hw_scan
) {
3386 if (iwl_debug_level
& IWL_DL_INFO
)
3387 dev_printk(KERN_DEBUG
, &(pdev
->dev
),
3388 "Disabling hw_scan\n");
3389 iwl_hw_ops
.hw_scan
= NULL
;
3392 hw
= iwl_alloc_all(cfg
, &iwl_hw_ops
);
3398 /* At this point both hw and priv are allocated. */
3400 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
3402 IWL_DEBUG_INFO(priv
, "*** LOAD DRIVER ***\n");
3404 priv
->pci_dev
= pdev
;
3405 priv
->inta_mask
= CSR_INI_SET_MASK
;
3407 #ifdef CONFIG_IWLWIFI_DEBUG
3408 atomic_set(&priv
->restrict_refcnt
, 0);
3410 if (iwl_alloc_traffic_mem(priv
))
3411 IWL_ERR(priv
, "Not enough memory to generate traffic log\n");
3413 /**************************
3414 * 2. Initializing PCI bus
3415 **************************/
3416 if (pci_enable_device(pdev
)) {
3418 goto out_ieee80211_free_hw
;
3421 pci_set_master(pdev
);
3423 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(36));
3425 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(36));
3427 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
3429 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(32));
3430 /* both attempts failed: */
3432 IWL_WARN(priv
, "No suitable DMA available.\n");
3433 goto out_pci_disable_device
;
3437 err
= pci_request_regions(pdev
, DRV_NAME
);
3439 goto out_pci_disable_device
;
3441 pci_set_drvdata(pdev
, priv
);
3444 /***********************
3445 * 3. Read REV register
3446 ***********************/
3447 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
3448 if (!priv
->hw_base
) {
3450 goto out_pci_release_regions
;
3453 IWL_DEBUG_INFO(priv
, "pci_resource_len = 0x%08llx\n",
3454 (unsigned long long) pci_resource_len(pdev
, 0));
3455 IWL_DEBUG_INFO(priv
, "pci_resource_base = %p\n", priv
->hw_base
);
3457 /* these spin locks will be used in apm_ops.init and EEPROM access
3458 * we should init now
3460 spin_lock_init(&priv
->reg_lock
);
3461 spin_lock_init(&priv
->lock
);
3464 * stop and reset the on-board processor just in case it is in a
3465 * strange state ... like being left stranded by a primary kernel
3466 * and this is now the kdump kernel trying to start up
3468 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
3470 iwl_hw_detect(priv
);
3471 IWL_INFO(priv
, "Detected Intel Wireless WiFi Link %s REV=0x%X\n",
3472 priv
->cfg
->name
, priv
->hw_rev
);
3474 /* We disable the RETRY_TIMEOUT register (0x41) to keep
3475 * PCI Tx retries from interfering with C3 CPU state */
3476 pci_write_config_byte(pdev
, PCI_CFG_RETRY_TIMEOUT
, 0x00);
3478 iwl_prepare_card_hw(priv
);
3479 if (!priv
->hw_ready
) {
3480 IWL_WARN(priv
, "Failed, HW not ready\n");
3487 /* Read the EEPROM */
3488 err
= iwl_eeprom_init(priv
);
3490 IWL_ERR(priv
, "Unable to init EEPROM\n");
3493 err
= iwl_eeprom_check_version(priv
);
3495 goto out_free_eeprom
;
3497 /* extract MAC Address */
3498 iwl_eeprom_get_mac(priv
, priv
->mac_addr
);
3499 IWL_DEBUG_INFO(priv
, "MAC address: %pM\n", priv
->mac_addr
);
3500 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
3502 /************************
3503 * 5. Setup HW constants
3504 ************************/
3505 if (iwl_set_hw_params(priv
)) {
3506 IWL_ERR(priv
, "failed to set hw parameters\n");
3507 goto out_free_eeprom
;
3510 /*******************
3512 *******************/
3514 err
= iwl_init_drv(priv
);
3516 goto out_free_eeprom
;
3517 /* At this point both hw and priv are initialized. */
3519 /********************
3521 ********************/
3522 spin_lock_irqsave(&priv
->lock
, flags
);
3523 iwl_disable_interrupts(priv
);
3524 spin_unlock_irqrestore(&priv
->lock
, flags
);
3526 pci_enable_msi(priv
->pci_dev
);
3528 iwl_alloc_isr_ict(priv
);
3529 err
= request_irq(priv
->pci_dev
->irq
, priv
->cfg
->ops
->lib
->isr
,
3530 IRQF_SHARED
, DRV_NAME
, priv
);
3532 IWL_ERR(priv
, "Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
3533 goto out_disable_msi
;
3535 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl_attribute_group
);
3537 IWL_ERR(priv
, "failed to create sysfs device attributes\n");
3541 iwl_setup_deferred_work(priv
);
3542 iwl_setup_rx_handlers(priv
);
3544 /*********************************************
3545 * 8. Enable interrupts and read RFKILL state
3546 *********************************************/
3548 /* enable interrupts if needed: hw bug w/a */
3549 pci_read_config_word(priv
->pci_dev
, PCI_COMMAND
, &pci_cmd
);
3550 if (pci_cmd
& PCI_COMMAND_INTX_DISABLE
) {
3551 pci_cmd
&= ~PCI_COMMAND_INTX_DISABLE
;
3552 pci_write_config_word(priv
->pci_dev
, PCI_COMMAND
, pci_cmd
);
3555 iwl_enable_interrupts(priv
);
3557 /* If platform's RF_KILL switch is NOT set to KILL */
3558 if (iwl_read32(priv
, CSR_GP_CNTRL
) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
3559 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3561 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3563 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
3564 test_bit(STATUS_RF_KILL_HW
, &priv
->status
));
3566 iwl_power_initialize(priv
);
3567 iwl_tt_initialize(priv
);
3569 err
= iwl_request_firmware(priv
, true);
3571 goto out_remove_sysfs
;
3576 destroy_workqueue(priv
->workqueue
);
3577 priv
->workqueue
= NULL
;
3578 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl_attribute_group
);
3580 free_irq(priv
->pci_dev
->irq
, priv
);
3581 iwl_free_isr_ict(priv
);
3583 pci_disable_msi(priv
->pci_dev
);
3584 iwl_uninit_drv(priv
);
3586 iwl_eeprom_free(priv
);
3588 pci_iounmap(pdev
, priv
->hw_base
);
3589 out_pci_release_regions
:
3590 pci_set_drvdata(pdev
, NULL
);
3591 pci_release_regions(pdev
);
3592 out_pci_disable_device
:
3593 pci_disable_device(pdev
);
3594 out_ieee80211_free_hw
:
3595 iwl_free_traffic_mem(priv
);
3596 ieee80211_free_hw(priv
->hw
);
3601 static void __devexit
iwl_pci_remove(struct pci_dev
*pdev
)
3603 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
3604 unsigned long flags
;
3609 IWL_DEBUG_INFO(priv
, "*** UNLOAD DRIVER ***\n");
3611 iwl_dbgfs_unregister(priv
);
3612 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl_attribute_group
);
3614 /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
3615 * to be called and iwl_down since we are removing the device
3616 * we need to set STATUS_EXIT_PENDING bit.
3618 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3619 if (priv
->mac80211_registered
) {
3620 ieee80211_unregister_hw(priv
->hw
);
3621 priv
->mac80211_registered
= 0;
3627 * Make sure device is reset to low power before unloading driver.
3628 * This may be redundant with iwl_down(), but there are paths to
3629 * run iwl_down() without calling apm_ops.stop(), and there are
3630 * paths to avoid running iwl_down() at all before leaving driver.
3631 * This (inexpensive) call *makes sure* device is reset.
3633 priv
->cfg
->ops
->lib
->apm_ops
.stop(priv
);
3637 /* make sure we flush any pending irq or
3638 * tasklet for the driver
3640 spin_lock_irqsave(&priv
->lock
, flags
);
3641 iwl_disable_interrupts(priv
);
3642 spin_unlock_irqrestore(&priv
->lock
, flags
);
3644 iwl_synchronize_irq(priv
);
3646 iwl_dealloc_ucode_pci(priv
);
3649 iwl_rx_queue_free(priv
, &priv
->rxq
);
3650 iwl_hw_txq_ctx_free(priv
);
3652 iwl_clear_stations_table(priv
);
3653 iwl_eeprom_free(priv
);
3656 /*netif_stop_queue(dev); */
3657 flush_workqueue(priv
->workqueue
);
3659 /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
3660 * priv->workqueue... so we can't take down the workqueue
3662 destroy_workqueue(priv
->workqueue
);
3663 priv
->workqueue
= NULL
;
3664 iwl_free_traffic_mem(priv
);
3666 free_irq(priv
->pci_dev
->irq
, priv
);
3667 pci_disable_msi(priv
->pci_dev
);
3668 pci_iounmap(pdev
, priv
->hw_base
);
3669 pci_release_regions(pdev
);
3670 pci_disable_device(pdev
);
3671 pci_set_drvdata(pdev
, NULL
);
3673 iwl_uninit_drv(priv
);
3675 iwl_free_isr_ict(priv
);
3677 if (priv
->ibss_beacon
)
3678 dev_kfree_skb(priv
->ibss_beacon
);
3680 ieee80211_free_hw(priv
->hw
);
3684 /*****************************************************************************
3686 * driver and module entry point
3688 *****************************************************************************/
3690 /* Hardware specific file defines the PCI IDs table for that hardware module */
3691 static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids
) = {
3692 #ifdef CONFIG_IWL4965
3693 {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID
, iwl4965_agn_cfg
)},
3694 {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID
, iwl4965_agn_cfg
)},
3695 #endif /* CONFIG_IWL4965 */
3696 #ifdef CONFIG_IWL5000
3697 /* 5100 Series WiFi */
3698 {IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg
)}, /* Mini Card */
3699 {IWL_PCI_DEVICE(0x4232, 0x1301, iwl5100_agn_cfg
)}, /* Half Mini Card */
3700 {IWL_PCI_DEVICE(0x4232, 0x1204, iwl5100_agn_cfg
)}, /* Mini Card */
3701 {IWL_PCI_DEVICE(0x4232, 0x1304, iwl5100_agn_cfg
)}, /* Half Mini Card */
3702 {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bgn_cfg
)}, /* Mini Card */
3703 {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bgn_cfg
)}, /* Half Mini Card */
3704 {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg
)}, /* Mini Card */
3705 {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg
)}, /* Half Mini Card */
3706 {IWL_PCI_DEVICE(0x4232, 0x1221, iwl5100_agn_cfg
)}, /* Mini Card */
3707 {IWL_PCI_DEVICE(0x4232, 0x1321, iwl5100_agn_cfg
)}, /* Half Mini Card */
3708 {IWL_PCI_DEVICE(0x4232, 0x1224, iwl5100_agn_cfg
)}, /* Mini Card */
3709 {IWL_PCI_DEVICE(0x4232, 0x1324, iwl5100_agn_cfg
)}, /* Half Mini Card */
3710 {IWL_PCI_DEVICE(0x4232, 0x1225, iwl5100_bgn_cfg
)}, /* Mini Card */
3711 {IWL_PCI_DEVICE(0x4232, 0x1325, iwl5100_bgn_cfg
)}, /* Half Mini Card */
3712 {IWL_PCI_DEVICE(0x4232, 0x1226, iwl5100_abg_cfg
)}, /* Mini Card */
3713 {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg
)}, /* Half Mini Card */
3714 {IWL_PCI_DEVICE(0x4237, 0x1211, iwl5100_agn_cfg
)}, /* Mini Card */
3715 {IWL_PCI_DEVICE(0x4237, 0x1311, iwl5100_agn_cfg
)}, /* Half Mini Card */
3716 {IWL_PCI_DEVICE(0x4237, 0x1214, iwl5100_agn_cfg
)}, /* Mini Card */
3717 {IWL_PCI_DEVICE(0x4237, 0x1314, iwl5100_agn_cfg
)}, /* Half Mini Card */
3718 {IWL_PCI_DEVICE(0x4237, 0x1215, iwl5100_bgn_cfg
)}, /* Mini Card */
3719 {IWL_PCI_DEVICE(0x4237, 0x1315, iwl5100_bgn_cfg
)}, /* Half Mini Card */
3720 {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg
)}, /* Mini Card */
3721 {IWL_PCI_DEVICE(0x4237, 0x1316, iwl5100_abg_cfg
)}, /* Half Mini Card */
3723 /* 5300 Series WiFi */
3724 {IWL_PCI_DEVICE(0x4235, 0x1021, iwl5300_agn_cfg
)}, /* Mini Card */
3725 {IWL_PCI_DEVICE(0x4235, 0x1121, iwl5300_agn_cfg
)}, /* Half Mini Card */
3726 {IWL_PCI_DEVICE(0x4235, 0x1024, iwl5300_agn_cfg
)}, /* Mini Card */
3727 {IWL_PCI_DEVICE(0x4235, 0x1124, iwl5300_agn_cfg
)}, /* Half Mini Card */
3728 {IWL_PCI_DEVICE(0x4235, 0x1001, iwl5300_agn_cfg
)}, /* Mini Card */
3729 {IWL_PCI_DEVICE(0x4235, 0x1101, iwl5300_agn_cfg
)}, /* Half Mini Card */
3730 {IWL_PCI_DEVICE(0x4235, 0x1004, iwl5300_agn_cfg
)}, /* Mini Card */
3731 {IWL_PCI_DEVICE(0x4235, 0x1104, iwl5300_agn_cfg
)}, /* Half Mini Card */
3732 {IWL_PCI_DEVICE(0x4236, 0x1011, iwl5300_agn_cfg
)}, /* Mini Card */
3733 {IWL_PCI_DEVICE(0x4236, 0x1111, iwl5300_agn_cfg
)}, /* Half Mini Card */
3734 {IWL_PCI_DEVICE(0x4236, 0x1014, iwl5300_agn_cfg
)}, /* Mini Card */
3735 {IWL_PCI_DEVICE(0x4236, 0x1114, iwl5300_agn_cfg
)}, /* Half Mini Card */
3737 /* 5350 Series WiFi/WiMax */
3738 {IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg
)}, /* Mini Card */
3739 {IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg
)}, /* Mini Card */
3740 {IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg
)}, /* Mini Card */
3742 /* 5150 Series Wifi/WiMax */
3743 {IWL_PCI_DEVICE(0x423C, 0x1201, iwl5150_agn_cfg
)}, /* Mini Card */
3744 {IWL_PCI_DEVICE(0x423C, 0x1301, iwl5150_agn_cfg
)}, /* Half Mini Card */
3745 {IWL_PCI_DEVICE(0x423C, 0x1206, iwl5150_abg_cfg
)}, /* Mini Card */
3746 {IWL_PCI_DEVICE(0x423C, 0x1306, iwl5150_abg_cfg
)}, /* Half Mini Card */
3747 {IWL_PCI_DEVICE(0x423C, 0x1221, iwl5150_agn_cfg
)}, /* Mini Card */
3748 {IWL_PCI_DEVICE(0x423C, 0x1321, iwl5150_agn_cfg
)}, /* Half Mini Card */
3750 {IWL_PCI_DEVICE(0x423D, 0x1211, iwl5150_agn_cfg
)}, /* Mini Card */
3751 {IWL_PCI_DEVICE(0x423D, 0x1311, iwl5150_agn_cfg
)}, /* Half Mini Card */
3752 {IWL_PCI_DEVICE(0x423D, 0x1216, iwl5150_abg_cfg
)}, /* Mini Card */
3753 {IWL_PCI_DEVICE(0x423D, 0x1316, iwl5150_abg_cfg
)}, /* Half Mini Card */
3756 {IWL_PCI_DEVICE(0x422B, 0x1101, iwl6000_3agn_cfg
)},
3757 {IWL_PCI_DEVICE(0x422B, 0x1121, iwl6000_3agn_cfg
)},
3758 {IWL_PCI_DEVICE(0x422C, 0x1301, iwl6000i_2agn_cfg
)},
3759 {IWL_PCI_DEVICE(0x422C, 0x1306, iwl6000i_2abg_cfg
)},
3760 {IWL_PCI_DEVICE(0x422C, 0x1307, iwl6000i_2bg_cfg
)},
3761 {IWL_PCI_DEVICE(0x422C, 0x1321, iwl6000i_2agn_cfg
)},
3762 {IWL_PCI_DEVICE(0x422C, 0x1326, iwl6000i_2abg_cfg
)},
3763 {IWL_PCI_DEVICE(0x4238, 0x1111, iwl6000_3agn_cfg
)},
3764 {IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg
)},
3765 {IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg
)},
3767 /* 6x50 WiFi/WiMax Series */
3768 {IWL_PCI_DEVICE(0x0087, 0x1301, iwl6050_2agn_cfg
)},
3769 {IWL_PCI_DEVICE(0x0087, 0x1306, iwl6050_2abg_cfg
)},
3770 {IWL_PCI_DEVICE(0x0087, 0x1321, iwl6050_2agn_cfg
)},
3771 {IWL_PCI_DEVICE(0x0087, 0x1326, iwl6050_2abg_cfg
)},
3772 {IWL_PCI_DEVICE(0x0089, 0x1311, iwl6050_2agn_cfg
)},
3773 {IWL_PCI_DEVICE(0x0089, 0x1316, iwl6050_2abg_cfg
)},
3775 /* 1000 Series WiFi */
3776 {IWL_PCI_DEVICE(0x0083, 0x1205, iwl1000_bgn_cfg
)},
3777 {IWL_PCI_DEVICE(0x0083, 0x1305, iwl1000_bgn_cfg
)},
3778 {IWL_PCI_DEVICE(0x0083, 0x1225, iwl1000_bgn_cfg
)},
3779 {IWL_PCI_DEVICE(0x0083, 0x1325, iwl1000_bgn_cfg
)},
3780 {IWL_PCI_DEVICE(0x0084, 0x1215, iwl1000_bgn_cfg
)},
3781 {IWL_PCI_DEVICE(0x0084, 0x1315, iwl1000_bgn_cfg
)},
3782 {IWL_PCI_DEVICE(0x0083, 0x1206, iwl1000_bg_cfg
)},
3783 {IWL_PCI_DEVICE(0x0083, 0x1306, iwl1000_bg_cfg
)},
3784 {IWL_PCI_DEVICE(0x0083, 0x1226, iwl1000_bg_cfg
)},
3785 {IWL_PCI_DEVICE(0x0083, 0x1326, iwl1000_bg_cfg
)},
3786 {IWL_PCI_DEVICE(0x0084, 0x1216, iwl1000_bg_cfg
)},
3787 {IWL_PCI_DEVICE(0x0084, 0x1316, iwl1000_bg_cfg
)},
3788 #endif /* CONFIG_IWL5000 */
3792 MODULE_DEVICE_TABLE(pci
, iwl_hw_card_ids
);
3794 static struct pci_driver iwl_driver
= {
3796 .id_table
= iwl_hw_card_ids
,
3797 .probe
= iwl_pci_probe
,
3798 .remove
= __devexit_p(iwl_pci_remove
),
3800 .suspend
= iwl_pci_suspend
,
3801 .resume
= iwl_pci_resume
,
3805 static int __init
iwl_init(void)
3809 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
3810 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
3812 ret
= iwlagn_rate_control_register();
3814 printk(KERN_ERR DRV_NAME
3815 "Unable to register rate control algorithm: %d\n", ret
);
3819 ret
= pci_register_driver(&iwl_driver
);
3821 printk(KERN_ERR DRV_NAME
"Unable to initialize PCI module\n");
3822 goto error_register
;
3828 iwlagn_rate_control_unregister();
3832 static void __exit
iwl_exit(void)
3834 pci_unregister_driver(&iwl_driver
);
3835 iwlagn_rate_control_unregister();
3838 module_exit(iwl_exit
);
3839 module_init(iwl_init
);
3841 #ifdef CONFIG_IWLWIFI_DEBUG
3842 module_param_named(debug50
, iwl_debug_level
, uint
, S_IRUGO
);
3843 MODULE_PARM_DESC(debug50
, "50XX debug output mask (deprecated)");
3844 module_param_named(debug
, iwl_debug_level
, uint
, S_IRUGO
| S_IWUSR
);
3845 MODULE_PARM_DESC(debug
, "debug output mask");