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"
59 /******************************************************************************
63 ******************************************************************************/
66 * module name, copyright, version, etc.
68 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
70 #ifdef CONFIG_IWLWIFI_DEBUG
76 #define DRV_VERSION IWLWIFI_VERSION VD
79 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
80 MODULE_VERSION(DRV_VERSION
);
81 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
82 MODULE_LICENSE("GPL");
83 MODULE_ALIAS("iwl4965");
85 /*************** STATION TABLE MANAGEMENT ****
86 * mac80211 should be examined to determine if sta_info is duplicating
87 * the functionality provided here
90 /**************************************************************/
93 * iwl_commit_rxon - commit staging_rxon to hardware
95 * The RXON command in staging_rxon is committed to the hardware and
96 * the active_rxon structure is updated with the new data. This
97 * function correctly transitions out of the RXON_ASSOC_MSK state if
98 * a HW tune is required based on the RXON structure changes.
100 int iwl_commit_rxon(struct iwl_priv
*priv
)
102 /* cast away the const for active_rxon in this function */
103 struct iwl_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
106 !!(priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
);
108 if (!iwl_is_alive(priv
))
111 /* always get timestamp with Rx frame */
112 priv
->staging_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
114 ret
= iwl_check_rxon_cmd(priv
);
116 IWL_ERR(priv
, "Invalid RXON configuration. Not committing.\n");
121 * receive commit_rxon request
122 * abort any previous channel switch if still in process
124 if (priv
->switch_rxon
.switch_in_progress
&&
125 (priv
->switch_rxon
.channel
!= priv
->staging_rxon
.channel
)) {
126 IWL_DEBUG_11H(priv
, "abort channel switch on %d\n",
127 le16_to_cpu(priv
->switch_rxon
.channel
));
128 priv
->switch_rxon
.switch_in_progress
= false;
131 /* If we don't need to send a full RXON, we can use
132 * iwl_rxon_assoc_cmd which is used to reconfigure filter
133 * and other flags for the current radio configuration. */
134 if (!iwl_full_rxon_required(priv
)) {
135 ret
= iwl_send_rxon_assoc(priv
);
137 IWL_ERR(priv
, "Error setting RXON_ASSOC (%d)\n", ret
);
141 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
142 iwl_print_rx_config_cmd(priv
);
146 /* station table will be cleared */
147 priv
->assoc_station_added
= 0;
149 /* If we are currently associated and the new config requires
150 * an RXON_ASSOC and the new config wants the associated mask enabled,
151 * we must clear the associated from the active configuration
152 * before we apply the new config */
153 if (iwl_is_associated(priv
) && new_assoc
) {
154 IWL_DEBUG_INFO(priv
, "Toggling associated bit on current RXON\n");
155 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
157 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
158 sizeof(struct iwl_rxon_cmd
),
161 /* If the mask clearing failed then we set
162 * active_rxon back to what it was previously */
164 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
165 IWL_ERR(priv
, "Error clearing ASSOC_MSK (%d)\n", ret
);
170 IWL_DEBUG_INFO(priv
, "Sending RXON\n"
171 "* with%s RXON_FILTER_ASSOC_MSK\n"
174 (new_assoc
? "" : "out"),
175 le16_to_cpu(priv
->staging_rxon
.channel
),
176 priv
->staging_rxon
.bssid_addr
);
178 iwl_set_rxon_hwcrypto(priv
, !priv
->cfg
->mod_params
->sw_crypto
);
180 /* Apply the new configuration
181 * RXON unassoc clears the station table in uCode, send it before
182 * we add the bcast station. If assoc bit is set, we will send RXON
183 * after having added the bcast and bssid station.
186 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
187 sizeof(struct iwl_rxon_cmd
), &priv
->staging_rxon
);
189 IWL_ERR(priv
, "Error setting new RXON (%d)\n", ret
);
192 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
195 iwl_clear_stations_table(priv
);
197 priv
->start_calib
= 0;
199 /* Add the broadcast address so we can send broadcast frames */
200 priv
->cfg
->ops
->lib
->add_bcast_station(priv
);
203 /* If we have set the ASSOC_MSK and we are in BSS mode then
204 * add the IWL_AP_ID to the station rate table */
206 if (priv
->iw_mode
== NL80211_IFTYPE_STATION
) {
207 ret
= iwl_rxon_add_station(priv
,
208 priv
->active_rxon
.bssid_addr
, 1);
209 if (ret
== IWL_INVALID_STATION
) {
211 "Error adding AP address for TX.\n");
214 priv
->assoc_station_added
= 1;
215 if (priv
->default_wep_key
&&
216 iwl_send_static_wepkey_cmd(priv
, 0))
218 "Could not send WEP static key.\n");
222 * allow CTS-to-self if possible for new association.
223 * this is relevant only for 5000 series and up,
224 * but will not damage 4965
226 priv
->staging_rxon
.flags
|= RXON_FLG_SELF_CTS_EN
;
228 /* Apply the new configuration
229 * RXON assoc doesn't clear the station table in uCode,
231 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
232 sizeof(struct iwl_rxon_cmd
), &priv
->staging_rxon
);
234 IWL_ERR(priv
, "Error setting new RXON (%d)\n", ret
);
237 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
239 iwl_print_rx_config_cmd(priv
);
241 iwl_init_sensitivity(priv
);
243 /* If we issue a new RXON command which required a tune then we must
244 * send a new TXPOWER command or we won't be able to Tx any frames */
245 ret
= iwl_set_tx_power(priv
, priv
->tx_power_user_lmt
, true);
247 IWL_ERR(priv
, "Error sending TX power (%d)\n", ret
);
254 void iwl_update_chain_flags(struct iwl_priv
*priv
)
257 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
258 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
259 iwlcore_commit_rxon(priv
);
262 static void iwl_clear_free_frames(struct iwl_priv
*priv
)
264 struct list_head
*element
;
266 IWL_DEBUG_INFO(priv
, "%d frames on pre-allocated heap on clear.\n",
269 while (!list_empty(&priv
->free_frames
)) {
270 element
= priv
->free_frames
.next
;
272 kfree(list_entry(element
, struct iwl_frame
, list
));
273 priv
->frames_count
--;
276 if (priv
->frames_count
) {
277 IWL_WARN(priv
, "%d frames still in use. Did we lose one?\n",
279 priv
->frames_count
= 0;
283 static struct iwl_frame
*iwl_get_free_frame(struct iwl_priv
*priv
)
285 struct iwl_frame
*frame
;
286 struct list_head
*element
;
287 if (list_empty(&priv
->free_frames
)) {
288 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
290 IWL_ERR(priv
, "Could not allocate frame!\n");
294 priv
->frames_count
++;
298 element
= priv
->free_frames
.next
;
300 return list_entry(element
, struct iwl_frame
, list
);
303 static void iwl_free_frame(struct iwl_priv
*priv
, struct iwl_frame
*frame
)
305 memset(frame
, 0, sizeof(*frame
));
306 list_add(&frame
->list
, &priv
->free_frames
);
309 static u32
iwl_fill_beacon_frame(struct iwl_priv
*priv
,
310 struct ieee80211_hdr
*hdr
,
313 if (!iwl_is_associated(priv
) || !priv
->ibss_beacon
||
314 ((priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) &&
315 (priv
->iw_mode
!= NL80211_IFTYPE_AP
)))
318 if (priv
->ibss_beacon
->len
> left
)
321 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
323 return priv
->ibss_beacon
->len
;
326 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
327 static void iwl_set_beacon_tim(struct iwl_priv
*priv
,
328 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
,
329 u8
*beacon
, u32 frame_size
)
332 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)beacon
;
335 * The index is relative to frame start but we start looking at the
336 * variable-length part of the beacon.
338 tim_idx
= mgmt
->u
.beacon
.variable
- beacon
;
340 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
341 while ((tim_idx
< (frame_size
- 2)) &&
342 (beacon
[tim_idx
] != WLAN_EID_TIM
))
343 tim_idx
+= beacon
[tim_idx
+1] + 2;
345 /* If TIM field was found, set variables */
346 if ((tim_idx
< (frame_size
- 1)) && (beacon
[tim_idx
] == WLAN_EID_TIM
)) {
347 tx_beacon_cmd
->tim_idx
= cpu_to_le16(tim_idx
);
348 tx_beacon_cmd
->tim_size
= beacon
[tim_idx
+1];
350 IWL_WARN(priv
, "Unable to find TIM Element in beacon\n");
353 static unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv
*priv
,
354 struct iwl_frame
*frame
)
356 struct iwl_tx_beacon_cmd
*tx_beacon_cmd
;
361 * We have to set up the TX command, the TX Beacon command, and the
365 /* Initialize memory */
366 tx_beacon_cmd
= &frame
->u
.beacon
;
367 memset(tx_beacon_cmd
, 0, sizeof(*tx_beacon_cmd
));
369 /* Set up TX beacon contents */
370 frame_size
= iwl_fill_beacon_frame(priv
, tx_beacon_cmd
->frame
,
371 sizeof(frame
->u
) - sizeof(*tx_beacon_cmd
));
372 if (WARN_ON_ONCE(frame_size
> MAX_MPDU_SIZE
))
375 /* Set up TX command fields */
376 tx_beacon_cmd
->tx
.len
= cpu_to_le16((u16
)frame_size
);
377 tx_beacon_cmd
->tx
.sta_id
= priv
->hw_params
.bcast_sta_id
;
378 tx_beacon_cmd
->tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
379 tx_beacon_cmd
->tx
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
|
380 TX_CMD_FLG_TSF_MSK
| TX_CMD_FLG_STA_RATE_MSK
;
382 /* Set up TX beacon command fields */
383 iwl_set_beacon_tim(priv
, tx_beacon_cmd
, (u8
*)tx_beacon_cmd
->frame
,
386 /* Set up packet rate and flags */
387 rate
= iwl_rate_get_lowest_plcp(priv
);
388 priv
->mgmt_tx_ant
= iwl_toggle_tx_ant(priv
, priv
->mgmt_tx_ant
);
389 rate_flags
= iwl_ant_idx_to_flags(priv
->mgmt_tx_ant
);
390 if ((rate
>= IWL_FIRST_CCK_RATE
) && (rate
<= IWL_LAST_CCK_RATE
))
391 rate_flags
|= RATE_MCS_CCK_MSK
;
392 tx_beacon_cmd
->tx
.rate_n_flags
= iwl_hw_set_rate_n_flags(rate
,
395 return sizeof(*tx_beacon_cmd
) + frame_size
;
397 static int iwl_send_beacon_cmd(struct iwl_priv
*priv
)
399 struct iwl_frame
*frame
;
400 unsigned int frame_size
;
403 frame
= iwl_get_free_frame(priv
);
405 IWL_ERR(priv
, "Could not obtain free frame buffer for beacon "
410 frame_size
= iwl_hw_get_beacon_cmd(priv
, frame
);
412 IWL_ERR(priv
, "Error configuring the beacon command\n");
413 iwl_free_frame(priv
, frame
);
417 rc
= iwl_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
420 iwl_free_frame(priv
, frame
);
425 static inline dma_addr_t
iwl_tfd_tb_get_addr(struct iwl_tfd
*tfd
, u8 idx
)
427 struct iwl_tfd_tb
*tb
= &tfd
->tbs
[idx
];
429 dma_addr_t addr
= get_unaligned_le32(&tb
->lo
);
430 if (sizeof(dma_addr_t
) > sizeof(u32
))
432 ((dma_addr_t
)(le16_to_cpu(tb
->hi_n_len
) & 0xF) << 16) << 16;
437 static inline u16
iwl_tfd_tb_get_len(struct iwl_tfd
*tfd
, u8 idx
)
439 struct iwl_tfd_tb
*tb
= &tfd
->tbs
[idx
];
441 return le16_to_cpu(tb
->hi_n_len
) >> 4;
444 static inline void iwl_tfd_set_tb(struct iwl_tfd
*tfd
, u8 idx
,
445 dma_addr_t addr
, u16 len
)
447 struct iwl_tfd_tb
*tb
= &tfd
->tbs
[idx
];
448 u16 hi_n_len
= len
<< 4;
450 put_unaligned_le32(addr
, &tb
->lo
);
451 if (sizeof(dma_addr_t
) > sizeof(u32
))
452 hi_n_len
|= ((addr
>> 16) >> 16) & 0xF;
454 tb
->hi_n_len
= cpu_to_le16(hi_n_len
);
456 tfd
->num_tbs
= idx
+ 1;
459 static inline u8
iwl_tfd_get_num_tbs(struct iwl_tfd
*tfd
)
461 return tfd
->num_tbs
& 0x1f;
465 * iwl_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
466 * @priv - driver private data
469 * Does NOT advance any TFD circular buffer read/write indexes
470 * Does NOT free the TFD itself (which is within circular buffer)
472 void iwl_hw_txq_free_tfd(struct iwl_priv
*priv
, struct iwl_tx_queue
*txq
)
474 struct iwl_tfd
*tfd_tmp
= (struct iwl_tfd
*)txq
->tfds
;
476 struct pci_dev
*dev
= priv
->pci_dev
;
477 int index
= txq
->q
.read_ptr
;
481 tfd
= &tfd_tmp
[index
];
483 /* Sanity check on number of chunks */
484 num_tbs
= iwl_tfd_get_num_tbs(tfd
);
486 if (num_tbs
>= IWL_NUM_OF_TBS
) {
487 IWL_ERR(priv
, "Too many chunks: %i\n", num_tbs
);
488 /* @todo issue fatal error, it is quite serious situation */
494 pci_unmap_single(dev
,
495 pci_unmap_addr(&txq
->meta
[index
], mapping
),
496 pci_unmap_len(&txq
->meta
[index
], len
),
497 PCI_DMA_BIDIRECTIONAL
);
499 /* Unmap chunks, if any. */
500 for (i
= 1; i
< num_tbs
; i
++) {
501 pci_unmap_single(dev
, iwl_tfd_tb_get_addr(tfd
, i
),
502 iwl_tfd_tb_get_len(tfd
, i
), PCI_DMA_TODEVICE
);
505 dev_kfree_skb(txq
->txb
[txq
->q
.read_ptr
].skb
[i
- 1]);
506 txq
->txb
[txq
->q
.read_ptr
].skb
[i
- 1] = NULL
;
511 int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv
*priv
,
512 struct iwl_tx_queue
*txq
,
513 dma_addr_t addr
, u16 len
,
517 struct iwl_tfd
*tfd
, *tfd_tmp
;
521 tfd_tmp
= (struct iwl_tfd
*)txq
->tfds
;
522 tfd
= &tfd_tmp
[q
->write_ptr
];
525 memset(tfd
, 0, sizeof(*tfd
));
527 num_tbs
= iwl_tfd_get_num_tbs(tfd
);
529 /* Each TFD can point to a maximum 20 Tx buffers */
530 if (num_tbs
>= IWL_NUM_OF_TBS
) {
531 IWL_ERR(priv
, "Error can not send more than %d chunks\n",
536 BUG_ON(addr
& ~DMA_BIT_MASK(36));
537 if (unlikely(addr
& ~IWL_TX_DMA_MASK
))
538 IWL_ERR(priv
, "Unaligned address = %llx\n",
539 (unsigned long long)addr
);
541 iwl_tfd_set_tb(tfd
, num_tbs
, addr
, len
);
547 * Tell nic where to find circular buffer of Tx Frame Descriptors for
548 * given Tx queue, and enable the DMA channel used for that queue.
550 * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA
551 * channels supported in hardware.
553 int iwl_hw_tx_queue_init(struct iwl_priv
*priv
,
554 struct iwl_tx_queue
*txq
)
556 int txq_id
= txq
->q
.id
;
558 /* Circular buffer (TFD queue in DRAM) physical base address */
559 iwl_write_direct32(priv
, FH_MEM_CBBC_QUEUE(txq_id
),
560 txq
->q
.dma_addr
>> 8);
565 /******************************************************************************
567 * Generic RX handler implementations
569 ******************************************************************************/
570 static void iwl_rx_reply_alive(struct iwl_priv
*priv
,
571 struct iwl_rx_mem_buffer
*rxb
)
573 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
574 struct iwl_alive_resp
*palive
;
575 struct delayed_work
*pwork
;
577 palive
= &pkt
->u
.alive_frame
;
579 IWL_DEBUG_INFO(priv
, "Alive ucode status 0x%08X revision "
581 palive
->is_valid
, palive
->ver_type
,
582 palive
->ver_subtype
);
584 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
585 IWL_DEBUG_INFO(priv
, "Initialization Alive received.\n");
586 memcpy(&priv
->card_alive_init
,
588 sizeof(struct iwl_init_alive_resp
));
589 pwork
= &priv
->init_alive_start
;
591 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
592 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
593 sizeof(struct iwl_alive_resp
));
594 pwork
= &priv
->alive_start
;
597 /* We delay the ALIVE response by 5ms to
598 * give the HW RF Kill time to activate... */
599 if (palive
->is_valid
== UCODE_VALID_OK
)
600 queue_delayed_work(priv
->workqueue
, pwork
,
601 msecs_to_jiffies(5));
603 IWL_WARN(priv
, "uCode did not respond OK.\n");
606 static void iwl_bg_beacon_update(struct work_struct
*work
)
608 struct iwl_priv
*priv
=
609 container_of(work
, struct iwl_priv
, beacon_update
);
610 struct sk_buff
*beacon
;
612 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
613 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
);
616 IWL_ERR(priv
, "update beacon failed\n");
620 mutex_lock(&priv
->mutex
);
621 /* new beacon skb is allocated every time; dispose previous.*/
622 if (priv
->ibss_beacon
)
623 dev_kfree_skb(priv
->ibss_beacon
);
625 priv
->ibss_beacon
= beacon
;
626 mutex_unlock(&priv
->mutex
);
628 iwl_send_beacon_cmd(priv
);
632 * iwl_bg_statistics_periodic - Timer callback to queue statistics
634 * This callback is provided in order to send a statistics request.
636 * This timer function is continually reset to execute within
637 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
638 * was received. We need to ensure we receive the statistics in order
639 * to update the temperature used for calibrating the TXPOWER.
641 static void iwl_bg_statistics_periodic(unsigned long data
)
643 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
645 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
648 /* dont send host command if rf-kill is on */
649 if (!iwl_is_ready_rf(priv
))
652 iwl_send_statistics_request(priv
, CMD_ASYNC
, false);
656 static void iwl_print_cont_event_trace(struct iwl_priv
*priv
, u32 base
,
657 u32 start_idx
, u32 num_events
,
661 u32 ptr
; /* SRAM byte address of log data */
662 u32 ev
, time
, data
; /* event log data */
663 unsigned long reg_flags
;
666 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 2 * sizeof(u32
));
668 ptr
= base
+ (4 * sizeof(u32
)) + (start_idx
* 3 * sizeof(u32
));
670 /* Make sure device is powered up for SRAM reads */
671 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
672 if (iwl_grab_nic_access(priv
)) {
673 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
677 /* Set starting address; reads will auto-increment */
678 _iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
682 * "time" is actually "data" for mode 0 (no timestamp).
683 * place event id # at far right for easier visual parsing.
685 for (i
= 0; i
< num_events
; i
++) {
686 ev
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
687 time
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
689 trace_iwlwifi_dev_ucode_cont_event(priv
,
692 data
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
693 trace_iwlwifi_dev_ucode_cont_event(priv
,
697 /* Allow device to power down */
698 iwl_release_nic_access(priv
);
699 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
702 static void iwl_continuous_event_trace(struct iwl_priv
*priv
)
704 u32 capacity
; /* event log capacity in # entries */
705 u32 base
; /* SRAM byte address of event log header */
706 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
707 u32 num_wraps
; /* # times uCode wrapped to top of log */
708 u32 next_entry
; /* index of next entry to be written by uCode */
710 if (priv
->ucode_type
== UCODE_INIT
)
711 base
= le32_to_cpu(priv
->card_alive_init
.error_event_table_ptr
);
713 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
714 if (priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
715 capacity
= iwl_read_targ_mem(priv
, base
);
716 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
717 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
718 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
722 if (num_wraps
== priv
->event_log
.num_wraps
) {
723 iwl_print_cont_event_trace(priv
,
724 base
, priv
->event_log
.next_entry
,
725 next_entry
- priv
->event_log
.next_entry
,
727 priv
->event_log
.non_wraps_count
++;
729 if ((num_wraps
- priv
->event_log
.num_wraps
) > 1)
730 priv
->event_log
.wraps_more_count
++;
732 priv
->event_log
.wraps_once_count
++;
733 trace_iwlwifi_dev_ucode_wrap_event(priv
,
734 num_wraps
- priv
->event_log
.num_wraps
,
735 next_entry
, priv
->event_log
.next_entry
);
736 if (next_entry
< priv
->event_log
.next_entry
) {
737 iwl_print_cont_event_trace(priv
, base
,
738 priv
->event_log
.next_entry
,
739 capacity
- priv
->event_log
.next_entry
,
742 iwl_print_cont_event_trace(priv
, base
, 0,
745 iwl_print_cont_event_trace(priv
, base
,
746 next_entry
, capacity
- next_entry
,
749 iwl_print_cont_event_trace(priv
, base
, 0,
753 priv
->event_log
.num_wraps
= num_wraps
;
754 priv
->event_log
.next_entry
= next_entry
;
758 * iwl_bg_ucode_trace - Timer callback to log ucode event
760 * The timer is continually set to execute every
761 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
762 * this function is to perform continuous uCode event logging operation
765 static void iwl_bg_ucode_trace(unsigned long data
)
767 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
769 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
772 if (priv
->event_log
.ucode_trace
) {
773 iwl_continuous_event_trace(priv
);
774 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
775 mod_timer(&priv
->ucode_trace
,
776 jiffies
+ msecs_to_jiffies(UCODE_TRACE_PERIOD
));
780 static void iwl_rx_beacon_notif(struct iwl_priv
*priv
,
781 struct iwl_rx_mem_buffer
*rxb
)
783 #ifdef CONFIG_IWLWIFI_DEBUG
784 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
785 struct iwl4965_beacon_notif
*beacon
=
786 (struct iwl4965_beacon_notif
*)pkt
->u
.raw
;
787 u8 rate
= iwl_hw_get_rate(beacon
->beacon_notify_hdr
.rate_n_flags
);
789 IWL_DEBUG_RX(priv
, "beacon status %x retries %d iss %d "
790 "tsf %d %d rate %d\n",
791 le32_to_cpu(beacon
->beacon_notify_hdr
.u
.status
) & TX_STATUS_MSK
,
792 beacon
->beacon_notify_hdr
.failure_frame
,
793 le32_to_cpu(beacon
->ibss_mgr_status
),
794 le32_to_cpu(beacon
->high_tsf
),
795 le32_to_cpu(beacon
->low_tsf
), rate
);
798 if ((priv
->iw_mode
== NL80211_IFTYPE_AP
) &&
799 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
800 queue_work(priv
->workqueue
, &priv
->beacon_update
);
803 /* Handle notification from uCode that card's power state is changing
804 * due to software, hardware, or critical temperature RFKILL */
805 static void iwl_rx_card_state_notif(struct iwl_priv
*priv
,
806 struct iwl_rx_mem_buffer
*rxb
)
808 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
809 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
810 unsigned long status
= priv
->status
;
812 IWL_DEBUG_RF_KILL(priv
, "Card state received: HW:%s SW:%s CT:%s\n",
813 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
814 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On",
815 (flags
& CT_CARD_DISABLED
) ?
816 "Reached" : "Not reached");
818 if (flags
& (SW_CARD_DISABLED
| HW_CARD_DISABLED
|
821 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
822 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
824 iwl_write_direct32(priv
, HBUS_TARG_MBX_C
,
825 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
827 if (!(flags
& RXON_CARD_DISABLED
)) {
828 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
829 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
830 iwl_write_direct32(priv
, HBUS_TARG_MBX_C
,
831 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
833 if (flags
& CT_CARD_DISABLED
)
834 iwl_tt_enter_ct_kill(priv
);
836 if (!(flags
& CT_CARD_DISABLED
))
837 iwl_tt_exit_ct_kill(priv
);
839 if (flags
& HW_CARD_DISABLED
)
840 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
842 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
845 if (!(flags
& RXON_CARD_DISABLED
))
846 iwl_scan_cancel(priv
);
848 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
849 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)))
850 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
851 test_bit(STATUS_RF_KILL_HW
, &priv
->status
));
853 wake_up_interruptible(&priv
->wait_command_queue
);
856 int iwl_set_pwr_src(struct iwl_priv
*priv
, enum iwl_pwr_src src
)
858 if (src
== IWL_PWR_SRC_VAUX
) {
859 if (pci_pme_capable(priv
->pci_dev
, PCI_D3cold
))
860 iwl_set_bits_mask_prph(priv
, APMG_PS_CTRL_REG
,
861 APMG_PS_CTRL_VAL_PWR_SRC_VAUX
,
862 ~APMG_PS_CTRL_MSK_PWR_SRC
);
864 iwl_set_bits_mask_prph(priv
, APMG_PS_CTRL_REG
,
865 APMG_PS_CTRL_VAL_PWR_SRC_VMAIN
,
866 ~APMG_PS_CTRL_MSK_PWR_SRC
);
873 * iwl_setup_rx_handlers - Initialize Rx handler callbacks
875 * Setup the RX handlers for each of the reply types sent from the uCode
878 * This function chains into the hardware specific files for them to setup
879 * any hardware specific handlers as well.
881 static void iwl_setup_rx_handlers(struct iwl_priv
*priv
)
883 priv
->rx_handlers
[REPLY_ALIVE
] = iwl_rx_reply_alive
;
884 priv
->rx_handlers
[REPLY_ERROR
] = iwl_rx_reply_error
;
885 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl_rx_csa
;
886 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
887 iwl_rx_spectrum_measure_notif
;
888 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl_rx_pm_sleep_notif
;
889 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
890 iwl_rx_pm_debug_statistics_notif
;
891 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl_rx_beacon_notif
;
894 * The same handler is used for both the REPLY to a discrete
895 * statistics request from the host as well as for the periodic
896 * statistics notifications (after received beacons) from the uCode.
898 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl_reply_statistics
;
899 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl_rx_statistics
;
901 iwl_setup_rx_scan_handlers(priv
);
903 /* status change handler */
904 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl_rx_card_state_notif
;
906 priv
->rx_handlers
[MISSED_BEACONS_NOTIFICATION
] =
907 iwl_rx_missed_beacon_notif
;
909 priv
->rx_handlers
[REPLY_RX_PHY_CMD
] = iwl_rx_reply_rx_phy
;
910 priv
->rx_handlers
[REPLY_RX_MPDU_CMD
] = iwl_rx_reply_rx
;
912 priv
->rx_handlers
[REPLY_COMPRESSED_BA
] = iwl_rx_reply_compressed_ba
;
913 /* Set up hardware specific Rx handlers */
914 priv
->cfg
->ops
->lib
->rx_handler_setup(priv
);
918 * iwl_rx_handle - Main entry function for receiving responses from uCode
920 * Uses the priv->rx_handlers callback function array to invoke
921 * the appropriate handlers, including command responses,
922 * frame-received notifications, and other notifications.
924 void iwl_rx_handle(struct iwl_priv
*priv
)
926 struct iwl_rx_mem_buffer
*rxb
;
927 struct iwl_rx_packet
*pkt
;
928 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
936 /* uCode's read index (stored in shared DRAM) indicates the last Rx
937 * buffer that the driver may process (last buffer filled by ucode). */
938 r
= le16_to_cpu(rxq
->rb_stts
->closed_rb_num
) & 0x0FFF;
941 /* Rx interrupt, but nothing sent from uCode */
943 IWL_DEBUG_RX(priv
, "r = %d, i = %d\n", r
, i
);
945 /* calculate total frames need to be restock after handling RX */
946 total_empty
= r
- rxq
->write_actual
;
948 total_empty
+= RX_QUEUE_SIZE
;
950 if (total_empty
> (RX_QUEUE_SIZE
/ 2))
956 /* If an RXB doesn't have a Rx queue slot associated with it,
957 * then a bug has been introduced in the queue refilling
958 * routines -- catch it here */
961 rxq
->queue
[i
] = NULL
;
963 pci_unmap_page(priv
->pci_dev
, rxb
->page_dma
,
964 PAGE_SIZE
<< priv
->hw_params
.rx_page_order
,
968 trace_iwlwifi_dev_rx(priv
, pkt
,
969 le32_to_cpu(pkt
->len_n_flags
) & FH_RSCSR_FRAME_SIZE_MSK
);
971 /* Reclaim a command buffer only if this packet is a response
972 * to a (driver-originated) command.
973 * If the packet (e.g. Rx frame) originated from uCode,
974 * there is no command buffer to reclaim.
975 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
976 * but apparently a few don't get set; catch them here. */
977 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
978 (pkt
->hdr
.cmd
!= REPLY_RX_PHY_CMD
) &&
979 (pkt
->hdr
.cmd
!= REPLY_RX
) &&
980 (pkt
->hdr
.cmd
!= REPLY_RX_MPDU_CMD
) &&
981 (pkt
->hdr
.cmd
!= REPLY_COMPRESSED_BA
) &&
982 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
983 (pkt
->hdr
.cmd
!= REPLY_TX
);
985 /* Based on type of command response or notification,
986 * handle those that need handling via function in
987 * rx_handlers table. See iwl_setup_rx_handlers() */
988 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
989 IWL_DEBUG_RX(priv
, "r = %d, i = %d, %s, 0x%02x\n", r
,
990 i
, get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
991 priv
->isr_stats
.rx_handlers
[pkt
->hdr
.cmd
]++;
992 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
994 /* No handling needed */
996 "r %d i %d No handler needed for %s, 0x%02x\n",
997 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
1002 * XXX: After here, we should always check rxb->page
1003 * against NULL before touching it or its virtual
1004 * memory (pkt). Because some rx_handler might have
1005 * already taken or freed the pages.
1009 /* Invoke any callbacks, transfer the buffer to caller,
1010 * and fire off the (possibly) blocking iwl_send_cmd()
1011 * as we reclaim the driver command queue */
1013 iwl_tx_cmd_complete(priv
, rxb
);
1015 IWL_WARN(priv
, "Claim null rxb?\n");
1018 /* Reuse the page if possible. For notification packets and
1019 * SKBs that fail to Rx correctly, add them back into the
1020 * rx_free list for reuse later. */
1021 spin_lock_irqsave(&rxq
->lock
, flags
);
1022 if (rxb
->page
!= NULL
) {
1023 rxb
->page_dma
= pci_map_page(priv
->pci_dev
, rxb
->page
,
1024 0, PAGE_SIZE
<< priv
->hw_params
.rx_page_order
,
1025 PCI_DMA_FROMDEVICE
);
1026 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
1029 list_add_tail(&rxb
->list
, &rxq
->rx_used
);
1031 spin_unlock_irqrestore(&rxq
->lock
, flags
);
1033 i
= (i
+ 1) & RX_QUEUE_MASK
;
1034 /* If there are a lot of unused frames,
1035 * restock the Rx queue so ucode wont assert. */
1040 iwl_rx_replenish_now(priv
);
1046 /* Backtrack one entry */
1049 iwl_rx_replenish_now(priv
);
1051 iwl_rx_queue_restock(priv
);
1054 /* call this function to flush any scheduled tasklet */
1055 static inline void iwl_synchronize_irq(struct iwl_priv
*priv
)
1057 /* wait to make sure we flush pending tasklet*/
1058 synchronize_irq(priv
->pci_dev
->irq
);
1059 tasklet_kill(&priv
->irq_tasklet
);
1062 static void iwl_irq_tasklet_legacy(struct iwl_priv
*priv
)
1064 u32 inta
, handled
= 0;
1066 unsigned long flags
;
1068 #ifdef CONFIG_IWLWIFI_DEBUG
1072 spin_lock_irqsave(&priv
->lock
, flags
);
1074 /* Ack/clear/reset pending uCode interrupts.
1075 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
1076 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
1077 inta
= iwl_read32(priv
, CSR_INT
);
1078 iwl_write32(priv
, CSR_INT
, inta
);
1080 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
1081 * Any new interrupts that happen after this, either while we're
1082 * in this tasklet, or later, will show up in next ISR/tasklet. */
1083 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1084 iwl_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
1086 #ifdef CONFIG_IWLWIFI_DEBUG
1087 if (iwl_get_debug_level(priv
) & IWL_DL_ISR
) {
1088 /* just for debug */
1089 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
1090 IWL_DEBUG_ISR(priv
, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1091 inta
, inta_mask
, inta_fh
);
1095 spin_unlock_irqrestore(&priv
->lock
, flags
);
1097 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
1098 * atomic, make sure that inta covers all the interrupts that
1099 * we've discovered, even if FH interrupt came in just after
1100 * reading CSR_INT. */
1101 if (inta_fh
& CSR49_FH_INT_RX_MASK
)
1102 inta
|= CSR_INT_BIT_FH_RX
;
1103 if (inta_fh
& CSR49_FH_INT_TX_MASK
)
1104 inta
|= CSR_INT_BIT_FH_TX
;
1106 /* Now service all interrupt bits discovered above. */
1107 if (inta
& CSR_INT_BIT_HW_ERR
) {
1108 IWL_ERR(priv
, "Hardware error detected. Restarting.\n");
1110 /* Tell the device to stop sending interrupts */
1111 iwl_disable_interrupts(priv
);
1113 priv
->isr_stats
.hw
++;
1114 iwl_irq_handle_error(priv
);
1116 handled
|= CSR_INT_BIT_HW_ERR
;
1121 #ifdef CONFIG_IWLWIFI_DEBUG
1122 if (iwl_get_debug_level(priv
) & (IWL_DL_ISR
)) {
1123 /* NIC fires this, but we don't use it, redundant with WAKEUP */
1124 if (inta
& CSR_INT_BIT_SCD
) {
1125 IWL_DEBUG_ISR(priv
, "Scheduler finished to transmit "
1126 "the frame/frames.\n");
1127 priv
->isr_stats
.sch
++;
1130 /* Alive notification via Rx interrupt will do the real work */
1131 if (inta
& CSR_INT_BIT_ALIVE
) {
1132 IWL_DEBUG_ISR(priv
, "Alive interrupt\n");
1133 priv
->isr_stats
.alive
++;
1137 /* Safely ignore these bits for debug checks below */
1138 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
1140 /* HW RF KILL switch toggled */
1141 if (inta
& CSR_INT_BIT_RF_KILL
) {
1143 if (!(iwl_read32(priv
, CSR_GP_CNTRL
) &
1144 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
1147 IWL_WARN(priv
, "RF_KILL bit toggled to %s.\n",
1148 hw_rf_kill
? "disable radio" : "enable radio");
1150 priv
->isr_stats
.rfkill
++;
1152 /* driver only loads ucode once setting the interface up.
1153 * the driver allows loading the ucode even if the radio
1154 * is killed. Hence update the killswitch state here. The
1155 * rfkill handler will care about restarting if needed.
1157 if (!test_bit(STATUS_ALIVE
, &priv
->status
)) {
1159 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1161 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1162 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
, hw_rf_kill
);
1165 handled
|= CSR_INT_BIT_RF_KILL
;
1168 /* Chip got too hot and stopped itself */
1169 if (inta
& CSR_INT_BIT_CT_KILL
) {
1170 IWL_ERR(priv
, "Microcode CT kill error detected.\n");
1171 priv
->isr_stats
.ctkill
++;
1172 handled
|= CSR_INT_BIT_CT_KILL
;
1175 /* Error detected by uCode */
1176 if (inta
& CSR_INT_BIT_SW_ERR
) {
1177 IWL_ERR(priv
, "Microcode SW error detected. "
1178 " Restarting 0x%X.\n", inta
);
1179 priv
->isr_stats
.sw
++;
1180 priv
->isr_stats
.sw_err
= inta
;
1181 iwl_irq_handle_error(priv
);
1182 handled
|= CSR_INT_BIT_SW_ERR
;
1186 * uCode wakes up after power-down sleep.
1187 * Tell device about any new tx or host commands enqueued,
1188 * and about any Rx buffers made available while asleep.
1190 if (inta
& CSR_INT_BIT_WAKEUP
) {
1191 IWL_DEBUG_ISR(priv
, "Wakeup interrupt\n");
1192 iwl_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
1193 for (i
= 0; i
< priv
->hw_params
.max_txq_num
; i
++)
1194 iwl_txq_update_write_ptr(priv
, &priv
->txq
[i
]);
1195 priv
->isr_stats
.wakeup
++;
1196 handled
|= CSR_INT_BIT_WAKEUP
;
1199 /* All uCode command responses, including Tx command responses,
1200 * Rx "responses" (frame-received notification), and other
1201 * notifications from uCode come through here*/
1202 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
1203 iwl_rx_handle(priv
);
1204 priv
->isr_stats
.rx
++;
1205 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
1208 /* This "Tx" DMA channel is used only for loading uCode */
1209 if (inta
& CSR_INT_BIT_FH_TX
) {
1210 IWL_DEBUG_ISR(priv
, "uCode load interrupt\n");
1211 priv
->isr_stats
.tx
++;
1212 handled
|= CSR_INT_BIT_FH_TX
;
1213 /* Wake up uCode load routine, now that load is complete */
1214 priv
->ucode_write_complete
= 1;
1215 wake_up_interruptible(&priv
->wait_command_queue
);
1218 if (inta
& ~handled
) {
1219 IWL_ERR(priv
, "Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
1220 priv
->isr_stats
.unhandled
++;
1223 if (inta
& ~(priv
->inta_mask
)) {
1224 IWL_WARN(priv
, "Disabled INTA bits 0x%08x were pending\n",
1225 inta
& ~priv
->inta_mask
);
1226 IWL_WARN(priv
, " with FH_INT = 0x%08x\n", inta_fh
);
1229 /* Re-enable all interrupts */
1230 /* only Re-enable if diabled by irq */
1231 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
1232 iwl_enable_interrupts(priv
);
1234 #ifdef CONFIG_IWLWIFI_DEBUG
1235 if (iwl_get_debug_level(priv
) & (IWL_DL_ISR
)) {
1236 inta
= iwl_read32(priv
, CSR_INT
);
1237 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
1238 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1239 IWL_DEBUG_ISR(priv
, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
1240 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
1245 /* tasklet for iwlagn interrupt */
1246 static void iwl_irq_tasklet(struct iwl_priv
*priv
)
1250 unsigned long flags
;
1252 #ifdef CONFIG_IWLWIFI_DEBUG
1256 spin_lock_irqsave(&priv
->lock
, flags
);
1258 /* Ack/clear/reset pending uCode interrupts.
1259 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
1261 /* There is a hardware bug in the interrupt mask function that some
1262 * interrupts (i.e. CSR_INT_BIT_SCD) can still be generated even if
1263 * they are disabled in the CSR_INT_MASK register. Furthermore the
1264 * ICT interrupt handling mechanism has another bug that might cause
1265 * these unmasked interrupts fail to be detected. We workaround the
1266 * hardware bugs here by ACKing all the possible interrupts so that
1267 * interrupt coalescing can still be achieved.
1269 iwl_write32(priv
, CSR_INT
, priv
->inta
| ~priv
->inta_mask
);
1273 #ifdef CONFIG_IWLWIFI_DEBUG
1274 if (iwl_get_debug_level(priv
) & IWL_DL_ISR
) {
1275 /* just for debug */
1276 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
1277 IWL_DEBUG_ISR(priv
, "inta 0x%08x, enabled 0x%08x\n ",
1282 spin_unlock_irqrestore(&priv
->lock
, flags
);
1284 /* saved interrupt in inta variable now we can reset priv->inta */
1287 /* Now service all interrupt bits discovered above. */
1288 if (inta
& CSR_INT_BIT_HW_ERR
) {
1289 IWL_ERR(priv
, "Hardware error detected. Restarting.\n");
1291 /* Tell the device to stop sending interrupts */
1292 iwl_disable_interrupts(priv
);
1294 priv
->isr_stats
.hw
++;
1295 iwl_irq_handle_error(priv
);
1297 handled
|= CSR_INT_BIT_HW_ERR
;
1302 #ifdef CONFIG_IWLWIFI_DEBUG
1303 if (iwl_get_debug_level(priv
) & (IWL_DL_ISR
)) {
1304 /* NIC fires this, but we don't use it, redundant with WAKEUP */
1305 if (inta
& CSR_INT_BIT_SCD
) {
1306 IWL_DEBUG_ISR(priv
, "Scheduler finished to transmit "
1307 "the frame/frames.\n");
1308 priv
->isr_stats
.sch
++;
1311 /* Alive notification via Rx interrupt will do the real work */
1312 if (inta
& CSR_INT_BIT_ALIVE
) {
1313 IWL_DEBUG_ISR(priv
, "Alive interrupt\n");
1314 priv
->isr_stats
.alive
++;
1318 /* Safely ignore these bits for debug checks below */
1319 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
1321 /* HW RF KILL switch toggled */
1322 if (inta
& CSR_INT_BIT_RF_KILL
) {
1324 if (!(iwl_read32(priv
, CSR_GP_CNTRL
) &
1325 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
1328 IWL_WARN(priv
, "RF_KILL bit toggled to %s.\n",
1329 hw_rf_kill
? "disable radio" : "enable radio");
1331 priv
->isr_stats
.rfkill
++;
1333 /* driver only loads ucode once setting the interface up.
1334 * the driver allows loading the ucode even if the radio
1335 * is killed. Hence update the killswitch state here. The
1336 * rfkill handler will care about restarting if needed.
1338 if (!test_bit(STATUS_ALIVE
, &priv
->status
)) {
1340 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1342 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1343 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
, hw_rf_kill
);
1346 handled
|= CSR_INT_BIT_RF_KILL
;
1349 /* Chip got too hot and stopped itself */
1350 if (inta
& CSR_INT_BIT_CT_KILL
) {
1351 IWL_ERR(priv
, "Microcode CT kill error detected.\n");
1352 priv
->isr_stats
.ctkill
++;
1353 handled
|= CSR_INT_BIT_CT_KILL
;
1356 /* Error detected by uCode */
1357 if (inta
& CSR_INT_BIT_SW_ERR
) {
1358 IWL_ERR(priv
, "Microcode SW error detected. "
1359 " Restarting 0x%X.\n", inta
);
1360 priv
->isr_stats
.sw
++;
1361 priv
->isr_stats
.sw_err
= inta
;
1362 iwl_irq_handle_error(priv
);
1363 handled
|= CSR_INT_BIT_SW_ERR
;
1366 /* uCode wakes up after power-down sleep */
1367 if (inta
& CSR_INT_BIT_WAKEUP
) {
1368 IWL_DEBUG_ISR(priv
, "Wakeup interrupt\n");
1369 iwl_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
1370 for (i
= 0; i
< priv
->hw_params
.max_txq_num
; i
++)
1371 iwl_txq_update_write_ptr(priv
, &priv
->txq
[i
]);
1373 priv
->isr_stats
.wakeup
++;
1375 handled
|= CSR_INT_BIT_WAKEUP
;
1378 /* All uCode command responses, including Tx command responses,
1379 * Rx "responses" (frame-received notification), and other
1380 * notifications from uCode come through here*/
1381 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
|
1382 CSR_INT_BIT_RX_PERIODIC
)) {
1383 IWL_DEBUG_ISR(priv
, "Rx interrupt\n");
1384 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
1385 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
1386 iwl_write32(priv
, CSR_FH_INT_STATUS
,
1387 CSR49_FH_INT_RX_MASK
);
1389 if (inta
& CSR_INT_BIT_RX_PERIODIC
) {
1390 handled
|= CSR_INT_BIT_RX_PERIODIC
;
1391 iwl_write32(priv
, CSR_INT
, CSR_INT_BIT_RX_PERIODIC
);
1393 /* Sending RX interrupt require many steps to be done in the
1395 * 1- write interrupt to current index in ICT table.
1397 * 3- update RX shared data to indicate last write index.
1398 * 4- send interrupt.
1399 * This could lead to RX race, driver could receive RX interrupt
1400 * but the shared data changes does not reflect this;
1401 * periodic interrupt will detect any dangling Rx activity.
1404 /* Disable periodic interrupt; we use it as just a one-shot. */
1405 iwl_write8(priv
, CSR_INT_PERIODIC_REG
,
1406 CSR_INT_PERIODIC_DIS
);
1407 iwl_rx_handle(priv
);
1410 * Enable periodic interrupt in 8 msec only if we received
1411 * real RX interrupt (instead of just periodic int), to catch
1412 * any dangling Rx interrupt. If it was just the periodic
1413 * interrupt, there was no dangling Rx activity, and no need
1414 * to extend the periodic interrupt; one-shot is enough.
1416 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
))
1417 iwl_write8(priv
, CSR_INT_PERIODIC_REG
,
1418 CSR_INT_PERIODIC_ENA
);
1420 priv
->isr_stats
.rx
++;
1423 /* This "Tx" DMA channel is used only for loading uCode */
1424 if (inta
& CSR_INT_BIT_FH_TX
) {
1425 iwl_write32(priv
, CSR_FH_INT_STATUS
, CSR49_FH_INT_TX_MASK
);
1426 IWL_DEBUG_ISR(priv
, "uCode load interrupt\n");
1427 priv
->isr_stats
.tx
++;
1428 handled
|= CSR_INT_BIT_FH_TX
;
1429 /* Wake up uCode load routine, now that load is complete */
1430 priv
->ucode_write_complete
= 1;
1431 wake_up_interruptible(&priv
->wait_command_queue
);
1434 if (inta
& ~handled
) {
1435 IWL_ERR(priv
, "Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
1436 priv
->isr_stats
.unhandled
++;
1439 if (inta
& ~(priv
->inta_mask
)) {
1440 IWL_WARN(priv
, "Disabled INTA bits 0x%08x were pending\n",
1441 inta
& ~priv
->inta_mask
);
1444 /* Re-enable all interrupts */
1445 /* only Re-enable if diabled by irq */
1446 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
1447 iwl_enable_interrupts(priv
);
1451 /******************************************************************************
1453 * uCode download functions
1455 ******************************************************************************/
1457 static void iwl_dealloc_ucode_pci(struct iwl_priv
*priv
)
1459 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
1460 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
1461 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
1462 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
1463 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
1464 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
1467 static void iwl_nic_start(struct iwl_priv
*priv
)
1469 /* Remove all resets to allow NIC to operate */
1470 iwl_write32(priv
, CSR_RESET
, 0);
1474 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
);
1475 static int iwl_mac_setup_register(struct iwl_priv
*priv
);
1477 static int __must_check
iwl_request_firmware(struct iwl_priv
*priv
, bool first
)
1479 const char *name_pre
= priv
->cfg
->fw_name_pre
;
1482 priv
->fw_index
= priv
->cfg
->ucode_api_max
;
1486 if (priv
->fw_index
< priv
->cfg
->ucode_api_min
) {
1487 IWL_ERR(priv
, "no suitable firmware found!\n");
1491 sprintf(priv
->firmware_name
, "%s%d%s",
1492 name_pre
, priv
->fw_index
, ".ucode");
1494 IWL_DEBUG_INFO(priv
, "attempting to load firmware '%s'\n",
1495 priv
->firmware_name
);
1497 return request_firmware_nowait(THIS_MODULE
, 1, priv
->firmware_name
,
1498 &priv
->pci_dev
->dev
, GFP_KERNEL
, priv
,
1499 iwl_ucode_callback
);
1503 * iwl_ucode_callback - callback when firmware was loaded
1505 * If loaded successfully, copies the firmware into buffers
1506 * for the card to fetch (via DMA).
1508 static void iwl_ucode_callback(const struct firmware
*ucode_raw
, void *context
)
1510 struct iwl_priv
*priv
= context
;
1511 struct iwl_ucode_header
*ucode
;
1512 const unsigned int api_max
= priv
->cfg
->ucode_api_max
;
1513 const unsigned int api_min
= priv
->cfg
->ucode_api_min
;
1517 u32 inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
1522 IWL_ERR(priv
, "request for firmware file '%s' failed.\n",
1523 priv
->firmware_name
);
1527 IWL_DEBUG_INFO(priv
, "Loaded firmware file '%s' (%zd bytes).\n",
1528 priv
->firmware_name
, ucode_raw
->size
);
1530 /* Make sure that we got at least the v1 header! */
1531 if (ucode_raw
->size
< priv
->cfg
->ops
->ucode
->get_header_size(1)) {
1532 IWL_ERR(priv
, "File size way too small!\n");
1536 /* Data from ucode file: header followed by uCode images */
1537 ucode
= (struct iwl_ucode_header
*)ucode_raw
->data
;
1539 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
1540 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
1541 build
= priv
->cfg
->ops
->ucode
->get_build(ucode
, api_ver
);
1542 inst_size
= priv
->cfg
->ops
->ucode
->get_inst_size(ucode
, api_ver
);
1543 data_size
= priv
->cfg
->ops
->ucode
->get_data_size(ucode
, api_ver
);
1544 init_size
= priv
->cfg
->ops
->ucode
->get_init_size(ucode
, api_ver
);
1546 priv
->cfg
->ops
->ucode
->get_init_data_size(ucode
, api_ver
);
1547 boot_size
= priv
->cfg
->ops
->ucode
->get_boot_size(ucode
, api_ver
);
1548 src
= priv
->cfg
->ops
->ucode
->get_data(ucode
, api_ver
);
1550 /* api_ver should match the api version forming part of the
1551 * firmware filename ... but we don't check for that and only rely
1552 * on the API version read from firmware header from here on forward */
1554 if (api_ver
< api_min
|| api_ver
> api_max
) {
1555 IWL_ERR(priv
, "Driver unable to support your firmware API. "
1556 "Driver supports v%u, firmware is v%u.\n",
1561 if (api_ver
!= api_max
)
1562 IWL_ERR(priv
, "Firmware has old API version. Expected v%u, "
1563 "got v%u. New firmware can be obtained "
1564 "from http://www.intellinuxwireless.org.\n",
1567 IWL_INFO(priv
, "loaded firmware version %u.%u.%u.%u\n",
1568 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1569 IWL_UCODE_MINOR(priv
->ucode_ver
),
1570 IWL_UCODE_API(priv
->ucode_ver
),
1571 IWL_UCODE_SERIAL(priv
->ucode_ver
));
1573 snprintf(priv
->hw
->wiphy
->fw_version
,
1574 sizeof(priv
->hw
->wiphy
->fw_version
),
1576 IWL_UCODE_MAJOR(priv
->ucode_ver
),
1577 IWL_UCODE_MINOR(priv
->ucode_ver
),
1578 IWL_UCODE_API(priv
->ucode_ver
),
1579 IWL_UCODE_SERIAL(priv
->ucode_ver
));
1582 IWL_DEBUG_INFO(priv
, "Build %u\n", build
);
1584 eeprom_ver
= iwl_eeprom_query16(priv
, EEPROM_VERSION
);
1585 IWL_DEBUG_INFO(priv
, "NVM Type: %s, version: 0x%x\n",
1586 (priv
->nvm_device_type
== NVM_DEVICE_TYPE_OTP
)
1587 ? "OTP" : "EEPROM", eeprom_ver
);
1589 IWL_DEBUG_INFO(priv
, "f/w package hdr ucode version raw = 0x%x\n",
1591 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime inst size = %u\n",
1593 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime data size = %u\n",
1595 IWL_DEBUG_INFO(priv
, "f/w package hdr init inst size = %u\n",
1597 IWL_DEBUG_INFO(priv
, "f/w package hdr init data size = %u\n",
1599 IWL_DEBUG_INFO(priv
, "f/w package hdr boot inst size = %u\n",
1603 * For any of the failures below (before allocating pci memory)
1604 * we will try to load a version with a smaller API -- maybe the
1605 * user just got a corrupted version of the latest API.
1608 /* Verify size of file vs. image size info in file's header */
1609 if (ucode_raw
->size
!=
1610 priv
->cfg
->ops
->ucode
->get_header_size(api_ver
) +
1611 inst_size
+ data_size
+ init_size
+
1612 init_data_size
+ boot_size
) {
1614 IWL_DEBUG_INFO(priv
,
1615 "uCode file size %d does not match expected size\n",
1616 (int)ucode_raw
->size
);
1620 /* Verify that uCode images will fit in card's SRAM */
1621 if (inst_size
> priv
->hw_params
.max_inst_size
) {
1622 IWL_DEBUG_INFO(priv
, "uCode instr len %d too large to fit in\n",
1627 if (data_size
> priv
->hw_params
.max_data_size
) {
1628 IWL_DEBUG_INFO(priv
, "uCode data len %d too large to fit in\n",
1632 if (init_size
> priv
->hw_params
.max_inst_size
) {
1633 IWL_INFO(priv
, "uCode init instr len %d too large to fit in\n",
1637 if (init_data_size
> priv
->hw_params
.max_data_size
) {
1638 IWL_INFO(priv
, "uCode init data len %d too large to fit in\n",
1642 if (boot_size
> priv
->hw_params
.max_bsm_size
) {
1643 IWL_INFO(priv
, "uCode boot instr len %d too large to fit in\n",
1648 /* Allocate ucode buffers for card's bus-master loading ... */
1650 /* Runtime instructions and 2 copies of data:
1651 * 1) unmodified from disk
1652 * 2) backup cache for save/restore during power-downs */
1653 priv
->ucode_code
.len
= inst_size
;
1654 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
1656 priv
->ucode_data
.len
= data_size
;
1657 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
1659 priv
->ucode_data_backup
.len
= data_size
;
1660 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
1662 if (!priv
->ucode_code
.v_addr
|| !priv
->ucode_data
.v_addr
||
1663 !priv
->ucode_data_backup
.v_addr
)
1666 /* Initialization instructions and data */
1667 if (init_size
&& init_data_size
) {
1668 priv
->ucode_init
.len
= init_size
;
1669 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
1671 priv
->ucode_init_data
.len
= init_data_size
;
1672 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
1674 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
1678 /* Bootstrap (instructions only, no data) */
1680 priv
->ucode_boot
.len
= boot_size
;
1681 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
1683 if (!priv
->ucode_boot
.v_addr
)
1687 /* Copy images into buffers for card's bus-master reads ... */
1689 /* Runtime instructions (first block of data in file) */
1691 IWL_DEBUG_INFO(priv
, "Copying (but not loading) uCode instr len %Zd\n", len
);
1692 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
1695 IWL_DEBUG_INFO(priv
, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
1696 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
1698 /* Runtime data (2nd block)
1699 * NOTE: Copy into backup buffer will be done in iwl_up() */
1701 IWL_DEBUG_INFO(priv
, "Copying (but not loading) uCode data len %Zd\n", len
);
1702 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
1703 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
1706 /* Initialization instructions (3rd block) */
1709 IWL_DEBUG_INFO(priv
, "Copying (but not loading) init instr len %Zd\n",
1711 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
1715 /* Initialization data (4th block) */
1716 if (init_data_size
) {
1717 len
= init_data_size
;
1718 IWL_DEBUG_INFO(priv
, "Copying (but not loading) init data len %Zd\n",
1720 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
1724 /* Bootstrap instructions (5th block) */
1726 IWL_DEBUG_INFO(priv
, "Copying (but not loading) boot instr len %Zd\n", len
);
1727 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
1729 /**************************************************
1730 * This is still part of probe() in a sense...
1732 * 9. Setup and register with mac80211 and debugfs
1733 **************************************************/
1734 err
= iwl_mac_setup_register(priv
);
1738 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
1740 IWL_ERR(priv
, "failed to create debugfs files. Ignoring error: %d\n", err
);
1742 /* We have our copies now, allow OS release its copies */
1743 release_firmware(ucode_raw
);
1747 /* try next, if any */
1748 if (iwl_request_firmware(priv
, false))
1750 release_firmware(ucode_raw
);
1754 IWL_ERR(priv
, "failed to allocate pci memory\n");
1755 iwl_dealloc_ucode_pci(priv
);
1757 device_release_driver(&priv
->pci_dev
->dev
);
1758 release_firmware(ucode_raw
);
1761 static const char *desc_lookup_text
[] = {
1766 "NMI_INTERRUPT_WDG",
1770 "HW_ERROR_TUNE_LOCK",
1771 "HW_ERROR_TEMPERATURE",
1772 "ILLEGAL_CHAN_FREQ",
1775 "NMI_INTERRUPT_HOST",
1776 "NMI_INTERRUPT_ACTION_PT",
1777 "NMI_INTERRUPT_UNKNOWN",
1778 "UCODE_VERSION_MISMATCH",
1779 "HW_ERROR_ABS_LOCK",
1780 "HW_ERROR_CAL_LOCK_FAIL",
1781 "NMI_INTERRUPT_INST_ACTION_PT",
1782 "NMI_INTERRUPT_DATA_ACTION_PT",
1784 "NMI_INTERRUPT_TRM",
1785 "NMI_INTERRUPT_BREAK_POINT"
1790 "ADVANCED SYSASSERT"
1793 static const char *desc_lookup(int i
)
1795 int max
= ARRAY_SIZE(desc_lookup_text
) - 1;
1797 if (i
< 0 || i
> max
)
1800 return desc_lookup_text
[i
];
1803 #define ERROR_START_OFFSET (1 * sizeof(u32))
1804 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1806 void iwl_dump_nic_error_log(struct iwl_priv
*priv
)
1809 u32 desc
, time
, count
, base
, data1
;
1810 u32 blink1
, blink2
, ilink1
, ilink2
;
1812 if (priv
->ucode_type
== UCODE_INIT
)
1813 base
= le32_to_cpu(priv
->card_alive_init
.error_event_table_ptr
);
1815 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
1817 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
1819 "Not valid error log pointer 0x%08X for %s uCode\n",
1820 base
, (priv
->ucode_type
== UCODE_INIT
) ? "Init" : "RT");
1824 count
= iwl_read_targ_mem(priv
, base
);
1826 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
1827 IWL_ERR(priv
, "Start IWL Error Log Dump:\n");
1828 IWL_ERR(priv
, "Status: 0x%08lX, count: %d\n",
1829 priv
->status
, count
);
1832 desc
= iwl_read_targ_mem(priv
, base
+ 1 * sizeof(u32
));
1833 blink1
= iwl_read_targ_mem(priv
, base
+ 3 * sizeof(u32
));
1834 blink2
= iwl_read_targ_mem(priv
, base
+ 4 * sizeof(u32
));
1835 ilink1
= iwl_read_targ_mem(priv
, base
+ 5 * sizeof(u32
));
1836 ilink2
= iwl_read_targ_mem(priv
, base
+ 6 * sizeof(u32
));
1837 data1
= iwl_read_targ_mem(priv
, base
+ 7 * sizeof(u32
));
1838 data2
= iwl_read_targ_mem(priv
, base
+ 8 * sizeof(u32
));
1839 line
= iwl_read_targ_mem(priv
, base
+ 9 * sizeof(u32
));
1840 time
= iwl_read_targ_mem(priv
, base
+ 11 * sizeof(u32
));
1842 trace_iwlwifi_dev_ucode_error(priv
, desc
, time
, data1
, data2
, line
,
1843 blink1
, blink2
, ilink1
, ilink2
);
1845 IWL_ERR(priv
, "Desc Time "
1846 "data1 data2 line\n");
1847 IWL_ERR(priv
, "%-28s (#%02d) %010u 0x%08X 0x%08X %u\n",
1848 desc_lookup(desc
), desc
, time
, data1
, data2
, line
);
1849 IWL_ERR(priv
, "blink1 blink2 ilink1 ilink2\n");
1850 IWL_ERR(priv
, "0x%05X 0x%05X 0x%05X 0x%05X\n", blink1
, blink2
,
1855 #define EVENT_START_OFFSET (4 * sizeof(u32))
1858 * iwl_print_event_log - Dump error event log to syslog
1861 static int iwl_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
1862 u32 num_events
, u32 mode
,
1863 int pos
, char **buf
, size_t bufsz
)
1866 u32 base
; /* SRAM byte address of event log header */
1867 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
1868 u32 ptr
; /* SRAM byte address of log data */
1869 u32 ev
, time
, data
; /* event log data */
1870 unsigned long reg_flags
;
1872 if (num_events
== 0)
1874 if (priv
->ucode_type
== UCODE_INIT
)
1875 base
= le32_to_cpu(priv
->card_alive_init
.log_event_table_ptr
);
1877 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
1880 event_size
= 2 * sizeof(u32
);
1882 event_size
= 3 * sizeof(u32
);
1884 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
1886 /* Make sure device is powered up for SRAM reads */
1887 spin_lock_irqsave(&priv
->reg_lock
, reg_flags
);
1888 iwl_grab_nic_access(priv
);
1890 /* Set starting address; reads will auto-increment */
1891 _iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, ptr
);
1894 /* "time" is actually "data" for mode 0 (no timestamp).
1895 * place event id # at far right for easier visual parsing. */
1896 for (i
= 0; i
< num_events
; i
++) {
1897 ev
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
1898 time
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
1902 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
1903 "EVT_LOG:0x%08x:%04u\n",
1906 trace_iwlwifi_dev_ucode_event(priv
, 0,
1908 IWL_ERR(priv
, "EVT_LOG:0x%08x:%04u\n",
1912 data
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
1914 pos
+= scnprintf(*buf
+ pos
, bufsz
- pos
,
1915 "EVT_LOGT:%010u:0x%08x:%04u\n",
1918 IWL_ERR(priv
, "EVT_LOGT:%010u:0x%08x:%04u\n",
1920 trace_iwlwifi_dev_ucode_event(priv
, time
,
1926 /* Allow device to power down */
1927 iwl_release_nic_access(priv
);
1928 spin_unlock_irqrestore(&priv
->reg_lock
, reg_flags
);
1933 * iwl_print_last_event_logs - Dump the newest # of event log to syslog
1935 static int iwl_print_last_event_logs(struct iwl_priv
*priv
, u32 capacity
,
1936 u32 num_wraps
, u32 next_entry
,
1938 int pos
, char **buf
, size_t bufsz
)
1941 * display the newest DEFAULT_LOG_ENTRIES entries
1942 * i.e the entries just before the next ont that uCode would fill.
1945 if (next_entry
< size
) {
1946 pos
= iwl_print_event_log(priv
,
1947 capacity
- (size
- next_entry
),
1948 size
- next_entry
, mode
,
1950 pos
= iwl_print_event_log(priv
, 0,
1954 pos
= iwl_print_event_log(priv
, next_entry
- size
,
1955 size
, mode
, pos
, buf
, bufsz
);
1957 if (next_entry
< size
) {
1958 pos
= iwl_print_event_log(priv
, 0, next_entry
,
1959 mode
, pos
, buf
, bufsz
);
1961 pos
= iwl_print_event_log(priv
, next_entry
- size
,
1962 size
, mode
, pos
, buf
, bufsz
);
1968 /* For sanity check only. Actual size is determined by uCode, typ. 512 */
1969 #define MAX_EVENT_LOG_SIZE (512)
1971 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
1973 int iwl_dump_nic_event_log(struct iwl_priv
*priv
, bool full_log
,
1974 char **buf
, bool display
)
1976 u32 base
; /* SRAM byte address of event log header */
1977 u32 capacity
; /* event log capacity in # entries */
1978 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
1979 u32 num_wraps
; /* # times uCode wrapped to top of log */
1980 u32 next_entry
; /* index of next entry to be written by uCode */
1981 u32 size
; /* # entries that we'll print */
1985 if (priv
->ucode_type
== UCODE_INIT
)
1986 base
= le32_to_cpu(priv
->card_alive_init
.log_event_table_ptr
);
1988 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
1990 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
1992 "Invalid event log pointer 0x%08X for %s uCode\n",
1993 base
, (priv
->ucode_type
== UCODE_INIT
) ? "Init" : "RT");
1997 /* event log header */
1998 capacity
= iwl_read_targ_mem(priv
, base
);
1999 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
2000 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
2001 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
2003 if (capacity
> MAX_EVENT_LOG_SIZE
) {
2004 IWL_ERR(priv
, "Log capacity %d is bogus, limit to %d entries\n",
2005 capacity
, MAX_EVENT_LOG_SIZE
);
2006 capacity
= MAX_EVENT_LOG_SIZE
;
2009 if (next_entry
> MAX_EVENT_LOG_SIZE
) {
2010 IWL_ERR(priv
, "Log write index %d is bogus, limit to %d\n",
2011 next_entry
, MAX_EVENT_LOG_SIZE
);
2012 next_entry
= MAX_EVENT_LOG_SIZE
;
2015 size
= num_wraps
? capacity
: next_entry
;
2017 /* bail out if nothing in log */
2019 IWL_ERR(priv
, "Start IWL Event Log Dump: nothing in log\n");
2023 #ifdef CONFIG_IWLWIFI_DEBUG
2024 if (!(iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) && !full_log
)
2025 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
2026 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
2028 size
= (size
> DEFAULT_DUMP_EVENT_LOG_ENTRIES
)
2029 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES
: size
;
2031 IWL_ERR(priv
, "Start IWL Event Log Dump: display last %u entries\n",
2034 #ifdef CONFIG_IWLWIFI_DEBUG
2037 bufsz
= capacity
* 48;
2040 *buf
= kmalloc(bufsz
, GFP_KERNEL
);
2044 if ((iwl_get_debug_level(priv
) & IWL_DL_FW_ERRORS
) || full_log
) {
2046 * if uCode has wrapped back to top of log,
2047 * start at the oldest entry,
2048 * i.e the next one that uCode would fill.
2051 pos
= iwl_print_event_log(priv
, next_entry
,
2052 capacity
- next_entry
, mode
,
2054 /* (then/else) start at top of log */
2055 pos
= iwl_print_event_log(priv
, 0,
2056 next_entry
, mode
, pos
, buf
, bufsz
);
2058 pos
= iwl_print_last_event_logs(priv
, capacity
, num_wraps
,
2059 next_entry
, size
, mode
,
2062 pos
= iwl_print_last_event_logs(priv
, capacity
, num_wraps
,
2063 next_entry
, size
, mode
,
2070 * iwl_alive_start - called after REPLY_ALIVE notification received
2071 * from protocol/runtime uCode (initialization uCode's
2072 * Alive gets handled by iwl_init_alive_start()).
2074 static void iwl_alive_start(struct iwl_priv
*priv
)
2078 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
2080 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
2081 /* We had an error bringing up the hardware, so take it
2082 * all the way back down so we can try again */
2083 IWL_DEBUG_INFO(priv
, "Alive failed.\n");
2087 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
2088 * This is a paranoid check, because we would not have gotten the
2089 * "runtime" alive if code weren't properly loaded. */
2090 if (iwl_verify_ucode(priv
)) {
2091 /* Runtime instruction load was bad;
2092 * take it all the way back down so we can try again */
2093 IWL_DEBUG_INFO(priv
, "Bad runtime uCode load.\n");
2097 iwl_clear_stations_table(priv
);
2098 ret
= priv
->cfg
->ops
->lib
->alive_notify(priv
);
2101 "Could not complete ALIVE transition [ntf]: %d\n", ret
);
2105 /* After the ALIVE response, we can send host commands to the uCode */
2106 set_bit(STATUS_ALIVE
, &priv
->status
);
2108 if (iwl_is_rfkill(priv
))
2111 ieee80211_wake_queues(priv
->hw
);
2113 priv
->active_rate
= priv
->rates_mask
;
2114 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
2116 /* Configure Tx antenna selection based on H/W config */
2117 if (priv
->cfg
->ops
->hcmd
->set_tx_ant
)
2118 priv
->cfg
->ops
->hcmd
->set_tx_ant(priv
, priv
->cfg
->valid_tx_ant
);
2120 if (iwl_is_associated(priv
)) {
2121 struct iwl_rxon_cmd
*active_rxon
=
2122 (struct iwl_rxon_cmd
*)&priv
->active_rxon
;
2123 /* apply any changes in staging */
2124 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
2125 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2127 /* Initialize our rx_config data */
2128 iwl_connection_init_rx_config(priv
, priv
->iw_mode
);
2130 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2131 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2133 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2136 /* Configure Bluetooth device coexistence support */
2137 iwl_send_bt_config(priv
);
2139 iwl_reset_run_time_calib(priv
);
2141 /* Configure the adapter for unassociated operation */
2142 iwlcore_commit_rxon(priv
);
2144 /* At this point, the NIC is initialized and operational */
2145 iwl_rf_kill_ct_config(priv
);
2147 iwl_leds_init(priv
);
2149 IWL_DEBUG_INFO(priv
, "ALIVE processing complete.\n");
2150 set_bit(STATUS_READY
, &priv
->status
);
2151 wake_up_interruptible(&priv
->wait_command_queue
);
2153 iwl_power_update_mode(priv
, true);
2155 /* reassociate for ADHOC mode */
2156 if (priv
->vif
&& (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)) {
2157 struct sk_buff
*beacon
= ieee80211_beacon_get(priv
->hw
,
2160 iwl_mac_beacon_update(priv
->hw
, beacon
);
2164 if (test_and_clear_bit(STATUS_MODE_PENDING
, &priv
->status
))
2165 iwl_set_mode(priv
, priv
->iw_mode
);
2170 queue_work(priv
->workqueue
, &priv
->restart
);
2173 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
);
2175 static void __iwl_down(struct iwl_priv
*priv
)
2177 unsigned long flags
;
2178 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2180 IWL_DEBUG_INFO(priv
, DRV_NAME
" is going down\n");
2183 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2185 iwl_clear_stations_table(priv
);
2187 /* Unblock any waiting calls */
2188 wake_up_interruptible_all(&priv
->wait_command_queue
);
2190 /* Wipe out the EXIT_PENDING status bit if we are not actually
2191 * exiting the module */
2193 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2195 /* stop and reset the on-board processor */
2196 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
2198 /* tell the device to stop sending interrupts */
2199 spin_lock_irqsave(&priv
->lock
, flags
);
2200 iwl_disable_interrupts(priv
);
2201 spin_unlock_irqrestore(&priv
->lock
, flags
);
2202 iwl_synchronize_irq(priv
);
2204 if (priv
->mac80211_registered
)
2205 ieee80211_stop_queues(priv
->hw
);
2207 /* If we have not previously called iwl_init() then
2208 * clear all bits but the RF Kill bit and return */
2209 if (!iwl_is_init(priv
)) {
2210 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
2212 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
2213 STATUS_GEO_CONFIGURED
|
2214 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
2215 STATUS_EXIT_PENDING
;
2219 /* ...otherwise clear out all the status bits but the RF Kill
2220 * bit and continue taking the NIC down. */
2221 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
2223 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
2224 STATUS_GEO_CONFIGURED
|
2225 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
2227 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
2228 STATUS_EXIT_PENDING
;
2230 /* device going down, Stop using ICT table */
2231 iwl_disable_ict(priv
);
2233 iwl_txq_ctx_stop(priv
);
2236 /* Power-down device's busmaster DMA clocks */
2237 iwl_write_prph(priv
, APMG_CLK_DIS_REG
, APMG_CLK_VAL_DMA_CLK_RQT
);
2240 /* Make sure (redundant) we've released our request to stay awake */
2241 iwl_clear_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
2243 /* Stop the device, and put it in low power state */
2244 priv
->cfg
->ops
->lib
->apm_ops
.stop(priv
);
2247 memset(&priv
->card_alive
, 0, sizeof(struct iwl_alive_resp
));
2249 if (priv
->ibss_beacon
)
2250 dev_kfree_skb(priv
->ibss_beacon
);
2251 priv
->ibss_beacon
= NULL
;
2253 /* clear out any free frames */
2254 iwl_clear_free_frames(priv
);
2257 static void iwl_down(struct iwl_priv
*priv
)
2259 mutex_lock(&priv
->mutex
);
2261 mutex_unlock(&priv
->mutex
);
2263 iwl_cancel_deferred_work(priv
);
2266 #define HW_READY_TIMEOUT (50)
2268 static int iwl_set_hw_ready(struct iwl_priv
*priv
)
2272 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
2273 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
);
2275 /* See if we got it */
2276 ret
= iwl_poll_bit(priv
, CSR_HW_IF_CONFIG_REG
,
2277 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
,
2278 CSR_HW_IF_CONFIG_REG_BIT_NIC_READY
,
2280 if (ret
!= -ETIMEDOUT
)
2281 priv
->hw_ready
= true;
2283 priv
->hw_ready
= false;
2285 IWL_DEBUG_INFO(priv
, "hardware %s\n",
2286 (priv
->hw_ready
== 1) ? "ready" : "not ready");
2290 static int iwl_prepare_card_hw(struct iwl_priv
*priv
)
2294 IWL_DEBUG_INFO(priv
, "iwl_prepare_card_hw enter \n");
2296 ret
= iwl_set_hw_ready(priv
);
2300 /* If HW is not ready, prepare the conditions to check again */
2301 iwl_set_bit(priv
, CSR_HW_IF_CONFIG_REG
,
2302 CSR_HW_IF_CONFIG_REG_PREPARE
);
2304 ret
= iwl_poll_bit(priv
, CSR_HW_IF_CONFIG_REG
,
2305 ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE
,
2306 CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE
, 150000);
2308 /* HW should be ready by now, check again. */
2309 if (ret
!= -ETIMEDOUT
)
2310 iwl_set_hw_ready(priv
);
2315 #define MAX_HW_RESTARTS 5
2317 static int __iwl_up(struct iwl_priv
*priv
)
2322 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
2323 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
2327 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
2328 IWL_ERR(priv
, "ucode not available for device bringup\n");
2332 iwl_prepare_card_hw(priv
);
2334 if (!priv
->hw_ready
) {
2335 IWL_WARN(priv
, "Exit HW not ready\n");
2339 /* If platform's RF_KILL switch is NOT set to KILL */
2340 if (iwl_read32(priv
, CSR_GP_CNTRL
) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
2341 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2343 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2345 if (iwl_is_rfkill(priv
)) {
2346 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
, true);
2348 iwl_enable_interrupts(priv
);
2349 IWL_WARN(priv
, "Radio disabled by HW RF Kill switch\n");
2353 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
2355 ret
= iwl_hw_nic_init(priv
);
2357 IWL_ERR(priv
, "Unable to init nic\n");
2361 /* make sure rfkill handshake bits are cleared */
2362 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2363 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
2364 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
2366 /* clear (again), then enable host interrupts */
2367 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
2368 iwl_enable_interrupts(priv
);
2370 /* really make sure rfkill handshake bits are cleared */
2371 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2372 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2374 /* Copy original ucode data image from disk into backup cache.
2375 * This will be used to initialize the on-board processor's
2376 * data SRAM for a clean start when the runtime program first loads. */
2377 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
2378 priv
->ucode_data
.len
);
2380 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
2382 iwl_clear_stations_table(priv
);
2384 /* load bootstrap state machine,
2385 * load bootstrap program into processor's memory,
2386 * prepare to load the "initialize" uCode */
2387 ret
= priv
->cfg
->ops
->lib
->load_ucode(priv
);
2390 IWL_ERR(priv
, "Unable to set up bootstrap uCode: %d\n",
2395 /* start card; "initialize" will load runtime ucode */
2396 iwl_nic_start(priv
);
2398 IWL_DEBUG_INFO(priv
, DRV_NAME
" is coming up\n");
2403 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2405 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2407 /* tried to restart and config the device for as long as our
2408 * patience could withstand */
2409 IWL_ERR(priv
, "Unable to initialize device after %d attempts.\n", i
);
2414 /*****************************************************************************
2416 * Workqueue callbacks
2418 *****************************************************************************/
2420 static void iwl_bg_init_alive_start(struct work_struct
*data
)
2422 struct iwl_priv
*priv
=
2423 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
2425 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2428 mutex_lock(&priv
->mutex
);
2429 priv
->cfg
->ops
->lib
->init_alive_start(priv
);
2430 mutex_unlock(&priv
->mutex
);
2433 static void iwl_bg_alive_start(struct work_struct
*data
)
2435 struct iwl_priv
*priv
=
2436 container_of(data
, struct iwl_priv
, alive_start
.work
);
2438 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2441 /* enable dram interrupt */
2442 iwl_reset_ict(priv
);
2444 mutex_lock(&priv
->mutex
);
2445 iwl_alive_start(priv
);
2446 mutex_unlock(&priv
->mutex
);
2449 static void iwl_bg_run_time_calib_work(struct work_struct
*work
)
2451 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
2452 run_time_calib_work
);
2454 mutex_lock(&priv
->mutex
);
2456 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
2457 test_bit(STATUS_SCANNING
, &priv
->status
)) {
2458 mutex_unlock(&priv
->mutex
);
2462 if (priv
->start_calib
) {
2463 iwl_chain_noise_calibration(priv
, &priv
->statistics
);
2465 iwl_sensitivity_calibration(priv
, &priv
->statistics
);
2468 mutex_unlock(&priv
->mutex
);
2472 static void iwl_bg_restart(struct work_struct
*data
)
2474 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
2476 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2479 if (test_and_clear_bit(STATUS_FW_ERROR
, &priv
->status
)) {
2480 mutex_lock(&priv
->mutex
);
2483 mutex_unlock(&priv
->mutex
);
2485 ieee80211_restart_hw(priv
->hw
);
2489 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2492 mutex_lock(&priv
->mutex
);
2494 mutex_unlock(&priv
->mutex
);
2498 static void iwl_bg_rx_replenish(struct work_struct
*data
)
2500 struct iwl_priv
*priv
=
2501 container_of(data
, struct iwl_priv
, rx_replenish
);
2503 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2506 mutex_lock(&priv
->mutex
);
2507 iwl_rx_replenish(priv
);
2508 mutex_unlock(&priv
->mutex
);
2511 #define IWL_DELAY_NEXT_SCAN (HZ*2)
2513 void iwl_post_associate(struct iwl_priv
*priv
)
2515 struct ieee80211_conf
*conf
= NULL
;
2517 unsigned long flags
;
2519 if (priv
->iw_mode
== NL80211_IFTYPE_AP
) {
2520 IWL_ERR(priv
, "%s Should not be called in AP mode\n", __func__
);
2524 IWL_DEBUG_ASSOC(priv
, "Associated as %d to: %pM\n",
2525 priv
->assoc_id
, priv
->active_rxon
.bssid_addr
);
2528 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2532 if (!priv
->vif
|| !priv
->is_open
)
2535 iwl_scan_cancel_timeout(priv
, 200);
2537 conf
= ieee80211_get_hw_conf(priv
->hw
);
2539 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2540 iwlcore_commit_rxon(priv
);
2542 iwl_setup_rxon_timing(priv
);
2543 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
2544 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
2546 IWL_WARN(priv
, "REPLY_RXON_TIMING failed - "
2547 "Attempting to continue.\n");
2549 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
2551 iwl_set_rxon_ht(priv
, &priv
->current_ht_config
);
2553 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2554 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2556 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
2558 IWL_DEBUG_ASSOC(priv
, "assoc id %d beacon interval %d\n",
2559 priv
->assoc_id
, priv
->beacon_int
);
2561 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
2562 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2564 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2566 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
2567 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
2568 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2570 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2572 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
2573 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2577 iwlcore_commit_rxon(priv
);
2579 switch (priv
->iw_mode
) {
2580 case NL80211_IFTYPE_STATION
:
2583 case NL80211_IFTYPE_ADHOC
:
2585 /* assume default assoc id */
2588 iwl_rxon_add_station(priv
, priv
->bssid
, 0);
2589 iwl_send_beacon_cmd(priv
);
2594 IWL_ERR(priv
, "%s Should not be called in %d mode\n",
2595 __func__
, priv
->iw_mode
);
2599 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
2600 priv
->assoc_station_added
= 1;
2602 spin_lock_irqsave(&priv
->lock
, flags
);
2603 iwl_activate_qos(priv
, 0);
2604 spin_unlock_irqrestore(&priv
->lock
, flags
);
2606 /* the chain noise calibration will enabled PM upon completion
2607 * If chain noise has already been run, then we need to enable
2608 * power management here */
2609 if (priv
->chain_noise_data
.state
== IWL_CHAIN_NOISE_DONE
)
2610 iwl_power_update_mode(priv
, false);
2612 /* Enable Rx differential gain and sensitivity calibrations */
2613 iwl_chain_noise_reset(priv
);
2614 priv
->start_calib
= 1;
2618 /*****************************************************************************
2620 * mac80211 entry point functions
2622 *****************************************************************************/
2624 #define UCODE_READY_TIMEOUT (4 * HZ)
2627 * Not a mac80211 entry point function, but it fits in with all the
2628 * other mac80211 functions grouped here.
2630 static int iwl_mac_setup_register(struct iwl_priv
*priv
)
2633 struct ieee80211_hw
*hw
= priv
->hw
;
2634 hw
->rate_control_algorithm
= "iwl-agn-rs";
2636 /* Tell mac80211 our characteristics */
2637 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
2638 IEEE80211_HW_NOISE_DBM
|
2639 IEEE80211_HW_AMPDU_AGGREGATION
|
2640 IEEE80211_HW_SPECTRUM_MGMT
;
2642 if (!priv
->cfg
->broken_powersave
)
2643 hw
->flags
|= IEEE80211_HW_SUPPORTS_PS
|
2644 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
;
2646 if (priv
->cfg
->sku
& IWL_SKU_N
)
2647 hw
->flags
|= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
2648 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
2650 hw
->sta_data_size
= sizeof(struct iwl_station_priv
);
2651 hw
->wiphy
->interface_modes
=
2652 BIT(NL80211_IFTYPE_STATION
) |
2653 BIT(NL80211_IFTYPE_ADHOC
);
2655 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
|
2656 WIPHY_FLAG_DISABLE_BEACON_HINTS
;
2659 * For now, disable PS by default because it affects
2660 * RX performance significantly.
2662 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
2664 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
2665 /* we create the 802.11 header and a zero-length SSID element */
2666 hw
->wiphy
->max_scan_ie_len
= IWL_MAX_PROBE_REQUEST
- 24 - 2;
2668 /* Default value; 4 EDCA QOS priorities */
2671 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
2673 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
2674 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
2675 &priv
->bands
[IEEE80211_BAND_2GHZ
];
2676 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
2677 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
2678 &priv
->bands
[IEEE80211_BAND_5GHZ
];
2680 ret
= ieee80211_register_hw(priv
->hw
);
2682 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
2685 priv
->mac80211_registered
= 1;
2691 static int iwl_mac_start(struct ieee80211_hw
*hw
)
2693 struct iwl_priv
*priv
= hw
->priv
;
2696 IWL_DEBUG_MAC80211(priv
, "enter\n");
2698 /* we should be verifying the device is ready to be opened */
2699 mutex_lock(&priv
->mutex
);
2700 ret
= __iwl_up(priv
);
2701 mutex_unlock(&priv
->mutex
);
2706 if (iwl_is_rfkill(priv
))
2709 IWL_DEBUG_INFO(priv
, "Start UP work done.\n");
2711 /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
2712 * mac80211 will not be run successfully. */
2713 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
2714 test_bit(STATUS_READY
, &priv
->status
),
2715 UCODE_READY_TIMEOUT
);
2717 if (!test_bit(STATUS_READY
, &priv
->status
)) {
2718 IWL_ERR(priv
, "START_ALIVE timeout after %dms.\n",
2719 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
2724 iwl_led_start(priv
);
2728 IWL_DEBUG_MAC80211(priv
, "leave\n");
2732 static void iwl_mac_stop(struct ieee80211_hw
*hw
)
2734 struct iwl_priv
*priv
= hw
->priv
;
2736 IWL_DEBUG_MAC80211(priv
, "enter\n");
2743 if (iwl_is_ready_rf(priv
) || test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
2744 /* stop mac, cancel any scan request and clear
2745 * RXON_FILTER_ASSOC_MSK BIT
2747 mutex_lock(&priv
->mutex
);
2748 iwl_scan_cancel_timeout(priv
, 100);
2749 mutex_unlock(&priv
->mutex
);
2754 flush_workqueue(priv
->workqueue
);
2756 /* enable interrupts again in order to receive rfkill changes */
2757 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
2758 iwl_enable_interrupts(priv
);
2760 IWL_DEBUG_MAC80211(priv
, "leave\n");
2763 static int iwl_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
2765 struct iwl_priv
*priv
= hw
->priv
;
2767 IWL_DEBUG_MACDUMP(priv
, "enter\n");
2769 IWL_DEBUG_TX(priv
, "dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
2770 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
2772 if (iwl_tx_skb(priv
, skb
))
2773 dev_kfree_skb_any(skb
);
2775 IWL_DEBUG_MACDUMP(priv
, "leave\n");
2776 return NETDEV_TX_OK
;
2779 void iwl_config_ap(struct iwl_priv
*priv
)
2782 unsigned long flags
;
2784 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2787 /* The following should be done only at AP bring up */
2788 if (!iwl_is_associated(priv
)) {
2790 /* RXON - unassoc (to set timing command) */
2791 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2792 iwlcore_commit_rxon(priv
);
2795 iwl_setup_rxon_timing(priv
);
2796 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
2797 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
2799 IWL_WARN(priv
, "REPLY_RXON_TIMING failed - "
2800 "Attempting to continue.\n");
2802 /* AP has all antennas */
2803 priv
->chain_noise_data
.active_chains
=
2804 priv
->hw_params
.valid_rx_ant
;
2805 iwl_set_rxon_ht(priv
, &priv
->current_ht_config
);
2806 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
2807 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
2809 /* FIXME: what should be the assoc_id for AP? */
2810 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
2811 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
2812 priv
->staging_rxon
.flags
|=
2813 RXON_FLG_SHORT_PREAMBLE_MSK
;
2815 priv
->staging_rxon
.flags
&=
2816 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2818 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
2819 if (priv
->assoc_capability
&
2820 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
2821 priv
->staging_rxon
.flags
|=
2822 RXON_FLG_SHORT_SLOT_MSK
;
2824 priv
->staging_rxon
.flags
&=
2825 ~RXON_FLG_SHORT_SLOT_MSK
;
2827 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
2828 priv
->staging_rxon
.flags
&=
2829 ~RXON_FLG_SHORT_SLOT_MSK
;
2831 /* restore RXON assoc */
2832 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
2833 iwlcore_commit_rxon(priv
);
2834 iwl_reset_qos(priv
);
2835 spin_lock_irqsave(&priv
->lock
, flags
);
2836 iwl_activate_qos(priv
, 1);
2837 spin_unlock_irqrestore(&priv
->lock
, flags
);
2838 iwl_add_bcast_station(priv
);
2840 iwl_send_beacon_cmd(priv
);
2842 /* FIXME - we need to add code here to detect a totally new
2843 * configuration, reset the AP, unassoc, rxon timing, assoc,
2844 * clear sta table, add BCAST sta... */
2847 static void iwl_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2848 struct ieee80211_vif
*vif
,
2849 struct ieee80211_key_conf
*keyconf
,
2850 struct ieee80211_sta
*sta
,
2851 u32 iv32
, u16
*phase1key
)
2854 struct iwl_priv
*priv
= hw
->priv
;
2855 IWL_DEBUG_MAC80211(priv
, "enter\n");
2857 iwl_update_tkip_key(priv
, keyconf
,
2858 sta
? sta
->addr
: iwl_bcast_addr
,
2861 IWL_DEBUG_MAC80211(priv
, "leave\n");
2864 static int iwl_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
2865 struct ieee80211_vif
*vif
,
2866 struct ieee80211_sta
*sta
,
2867 struct ieee80211_key_conf
*key
)
2869 struct iwl_priv
*priv
= hw
->priv
;
2873 bool is_default_wep_key
= false;
2875 IWL_DEBUG_MAC80211(priv
, "enter\n");
2877 if (priv
->cfg
->mod_params
->sw_crypto
) {
2878 IWL_DEBUG_MAC80211(priv
, "leave - hwcrypto disabled\n");
2881 addr
= sta
? sta
->addr
: iwl_bcast_addr
;
2882 sta_id
= iwl_find_station(priv
, addr
);
2883 if (sta_id
== IWL_INVALID_STATION
) {
2884 IWL_DEBUG_MAC80211(priv
, "leave - %pM not in station map.\n",
2890 mutex_lock(&priv
->mutex
);
2891 iwl_scan_cancel_timeout(priv
, 100);
2892 mutex_unlock(&priv
->mutex
);
2894 /* If we are getting WEP group key and we didn't receive any key mapping
2895 * so far, we are in legacy wep mode (group key only), otherwise we are
2897 * In legacy wep mode, we use another host command to the uCode */
2898 if (key
->alg
== ALG_WEP
&& sta_id
== priv
->hw_params
.bcast_sta_id
&&
2899 priv
->iw_mode
!= NL80211_IFTYPE_AP
) {
2901 is_default_wep_key
= !priv
->key_mapping_key
;
2903 is_default_wep_key
=
2904 (key
->hw_key_idx
== HW_KEY_DEFAULT
);
2909 if (is_default_wep_key
)
2910 ret
= iwl_set_default_wep_key(priv
, key
);
2912 ret
= iwl_set_dynamic_key(priv
, key
, sta_id
);
2914 IWL_DEBUG_MAC80211(priv
, "enable hwcrypto key\n");
2917 if (is_default_wep_key
)
2918 ret
= iwl_remove_default_wep_key(priv
, key
);
2920 ret
= iwl_remove_dynamic_key(priv
, key
, sta_id
);
2922 IWL_DEBUG_MAC80211(priv
, "disable hwcrypto key\n");
2928 IWL_DEBUG_MAC80211(priv
, "leave\n");
2933 static int iwl_mac_ampdu_action(struct ieee80211_hw
*hw
,
2934 struct ieee80211_vif
*vif
,
2935 enum ieee80211_ampdu_mlme_action action
,
2936 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
)
2938 struct iwl_priv
*priv
= hw
->priv
;
2941 IWL_DEBUG_HT(priv
, "A-MPDU action on addr %pM tid %d\n",
2944 if (!(priv
->cfg
->sku
& IWL_SKU_N
))
2948 case IEEE80211_AMPDU_RX_START
:
2949 IWL_DEBUG_HT(priv
, "start Rx\n");
2950 return iwl_sta_rx_agg_start(priv
, sta
->addr
, tid
, *ssn
);
2951 case IEEE80211_AMPDU_RX_STOP
:
2952 IWL_DEBUG_HT(priv
, "stop Rx\n");
2953 ret
= iwl_sta_rx_agg_stop(priv
, sta
->addr
, tid
);
2954 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2958 case IEEE80211_AMPDU_TX_START
:
2959 IWL_DEBUG_HT(priv
, "start Tx\n");
2960 return iwl_tx_agg_start(priv
, sta
->addr
, tid
, ssn
);
2961 case IEEE80211_AMPDU_TX_STOP
:
2962 IWL_DEBUG_HT(priv
, "stop Tx\n");
2963 ret
= iwl_tx_agg_stop(priv
, sta
->addr
, tid
);
2964 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2968 case IEEE80211_AMPDU_TX_OPERATIONAL
:
2972 IWL_DEBUG_HT(priv
, "unknown\n");
2979 static int iwl_mac_get_stats(struct ieee80211_hw
*hw
,
2980 struct ieee80211_low_level_stats
*stats
)
2982 struct iwl_priv
*priv
= hw
->priv
;
2985 IWL_DEBUG_MAC80211(priv
, "enter\n");
2986 IWL_DEBUG_MAC80211(priv
, "leave\n");
2991 static void iwl_mac_sta_notify(struct ieee80211_hw
*hw
,
2992 struct ieee80211_vif
*vif
,
2993 enum sta_notify_cmd cmd
,
2994 struct ieee80211_sta
*sta
)
2996 struct iwl_priv
*priv
= hw
->priv
;
2997 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
3001 * TODO: We really should use this callback to
3002 * actually maintain the station table in
3007 case STA_NOTIFY_ADD
:
3008 atomic_set(&sta_priv
->pending_frames
, 0);
3009 if (vif
->type
== NL80211_IFTYPE_AP
)
3010 sta_priv
->client
= true;
3012 case STA_NOTIFY_SLEEP
:
3013 WARN_ON(!sta_priv
->client
);
3014 sta_priv
->asleep
= true;
3015 if (atomic_read(&sta_priv
->pending_frames
) > 0)
3016 ieee80211_sta_block_awake(hw
, sta
, true);
3018 case STA_NOTIFY_AWAKE
:
3019 WARN_ON(!sta_priv
->client
);
3020 if (!sta_priv
->asleep
)
3022 sta_priv
->asleep
= false;
3023 sta_id
= iwl_find_station(priv
, sta
->addr
);
3024 if (sta_id
!= IWL_INVALID_STATION
)
3025 iwl_sta_modify_ps_wake(priv
, sta_id
);
3032 /*****************************************************************************
3036 *****************************************************************************/
3038 #ifdef CONFIG_IWLWIFI_DEBUG
3041 * The following adds a new attribute to the sysfs representation
3042 * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
3043 * used for controlling the debug level.
3045 * See the level definitions in iwl for details.
3047 * The debug_level being managed using sysfs below is a per device debug
3048 * level that is used instead of the global debug level if it (the per
3049 * device debug level) is set.
3051 static ssize_t
show_debug_level(struct device
*d
,
3052 struct device_attribute
*attr
, char *buf
)
3054 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3055 return sprintf(buf
, "0x%08X\n", iwl_get_debug_level(priv
));
3057 static ssize_t
store_debug_level(struct device
*d
,
3058 struct device_attribute
*attr
,
3059 const char *buf
, size_t count
)
3061 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3065 ret
= strict_strtoul(buf
, 0, &val
);
3067 IWL_ERR(priv
, "%s is not in hex or decimal form.\n", buf
);
3069 priv
->debug_level
= val
;
3070 if (iwl_alloc_traffic_mem(priv
))
3072 "Not enough memory to generate traffic log\n");
3074 return strnlen(buf
, count
);
3077 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
3078 show_debug_level
, store_debug_level
);
3081 #endif /* CONFIG_IWLWIFI_DEBUG */
3084 static ssize_t
show_temperature(struct device
*d
,
3085 struct device_attribute
*attr
, char *buf
)
3087 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3089 if (!iwl_is_alive(priv
))
3092 return sprintf(buf
, "%d\n", priv
->temperature
);
3095 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
3097 static ssize_t
show_tx_power(struct device
*d
,
3098 struct device_attribute
*attr
, char *buf
)
3100 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3102 if (!iwl_is_ready_rf(priv
))
3103 return sprintf(buf
, "off\n");
3105 return sprintf(buf
, "%d\n", priv
->tx_power_user_lmt
);
3108 static ssize_t
store_tx_power(struct device
*d
,
3109 struct device_attribute
*attr
,
3110 const char *buf
, size_t count
)
3112 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3116 ret
= strict_strtoul(buf
, 10, &val
);
3118 IWL_INFO(priv
, "%s is not in decimal form.\n", buf
);
3120 ret
= iwl_set_tx_power(priv
, val
, false);
3122 IWL_ERR(priv
, "failed setting tx power (0x%d).\n",
3130 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
3132 static ssize_t
show_flags(struct device
*d
,
3133 struct device_attribute
*attr
, char *buf
)
3135 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3137 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
3140 static ssize_t
store_flags(struct device
*d
,
3141 struct device_attribute
*attr
,
3142 const char *buf
, size_t count
)
3144 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3147 int ret
= strict_strtoul(buf
, 0, &val
);
3152 mutex_lock(&priv
->mutex
);
3153 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
3154 /* Cancel any currently running scans... */
3155 if (iwl_scan_cancel_timeout(priv
, 100))
3156 IWL_WARN(priv
, "Could not cancel scan.\n");
3158 IWL_DEBUG_INFO(priv
, "Commit rxon.flags = 0x%04X\n", flags
);
3159 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
3160 iwlcore_commit_rxon(priv
);
3163 mutex_unlock(&priv
->mutex
);
3168 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
3170 static ssize_t
show_filter_flags(struct device
*d
,
3171 struct device_attribute
*attr
, char *buf
)
3173 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3175 return sprintf(buf
, "0x%04X\n",
3176 le32_to_cpu(priv
->active_rxon
.filter_flags
));
3179 static ssize_t
store_filter_flags(struct device
*d
,
3180 struct device_attribute
*attr
,
3181 const char *buf
, size_t count
)
3183 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3186 int ret
= strict_strtoul(buf
, 0, &val
);
3189 filter_flags
= (u32
)val
;
3191 mutex_lock(&priv
->mutex
);
3192 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
3193 /* Cancel any currently running scans... */
3194 if (iwl_scan_cancel_timeout(priv
, 100))
3195 IWL_WARN(priv
, "Could not cancel scan.\n");
3197 IWL_DEBUG_INFO(priv
, "Committing rxon.filter_flags = "
3198 "0x%04X\n", filter_flags
);
3199 priv
->staging_rxon
.filter_flags
=
3200 cpu_to_le32(filter_flags
);
3201 iwlcore_commit_rxon(priv
);
3204 mutex_unlock(&priv
->mutex
);
3209 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
3210 store_filter_flags
);
3213 static ssize_t
show_statistics(struct device
*d
,
3214 struct device_attribute
*attr
, char *buf
)
3216 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3217 u32 size
= sizeof(struct iwl_notif_statistics
);
3218 u32 len
= 0, ofs
= 0;
3219 u8
*data
= (u8
*)&priv
->statistics
;
3222 if (!iwl_is_alive(priv
))
3225 mutex_lock(&priv
->mutex
);
3226 rc
= iwl_send_statistics_request(priv
, CMD_SYNC
, false);
3227 mutex_unlock(&priv
->mutex
);
3231 "Error sending statistics request: 0x%08X\n", rc
);
3235 while (size
&& (PAGE_SIZE
- len
)) {
3236 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
3237 PAGE_SIZE
- len
, 1);
3239 if (PAGE_SIZE
- len
)
3243 size
-= min(size
, 16U);
3249 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
3251 static ssize_t
show_rts_ht_protection(struct device
*d
,
3252 struct device_attribute
*attr
, char *buf
)
3254 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3256 return sprintf(buf
, "%s\n",
3257 priv
->cfg
->use_rts_for_ht
? "RTS/CTS" : "CTS-to-self");
3260 static ssize_t
store_rts_ht_protection(struct device
*d
,
3261 struct device_attribute
*attr
,
3262 const char *buf
, size_t count
)
3264 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3268 ret
= strict_strtoul(buf
, 10, &val
);
3270 IWL_INFO(priv
, "Input is not in decimal form.\n");
3272 if (!iwl_is_associated(priv
))
3273 priv
->cfg
->use_rts_for_ht
= val
? true : false;
3275 IWL_ERR(priv
, "Sta associated with AP - "
3276 "Change protection mechanism is not allowed\n");
3282 static DEVICE_ATTR(rts_ht_protection
, S_IWUSR
| S_IRUGO
,
3283 show_rts_ht_protection
, store_rts_ht_protection
);
3286 /*****************************************************************************
3288 * driver setup and teardown
3290 *****************************************************************************/
3292 static void iwl_setup_deferred_work(struct iwl_priv
*priv
)
3294 priv
->workqueue
= create_singlethread_workqueue(DRV_NAME
);
3296 init_waitqueue_head(&priv
->wait_command_queue
);
3298 INIT_WORK(&priv
->restart
, iwl_bg_restart
);
3299 INIT_WORK(&priv
->rx_replenish
, iwl_bg_rx_replenish
);
3300 INIT_WORK(&priv
->beacon_update
, iwl_bg_beacon_update
);
3301 INIT_WORK(&priv
->run_time_calib_work
, iwl_bg_run_time_calib_work
);
3302 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl_bg_init_alive_start
);
3303 INIT_DELAYED_WORK(&priv
->alive_start
, iwl_bg_alive_start
);
3305 iwl_setup_scan_deferred_work(priv
);
3307 if (priv
->cfg
->ops
->lib
->setup_deferred_work
)
3308 priv
->cfg
->ops
->lib
->setup_deferred_work(priv
);
3310 init_timer(&priv
->statistics_periodic
);
3311 priv
->statistics_periodic
.data
= (unsigned long)priv
;
3312 priv
->statistics_periodic
.function
= iwl_bg_statistics_periodic
;
3314 init_timer(&priv
->ucode_trace
);
3315 priv
->ucode_trace
.data
= (unsigned long)priv
;
3316 priv
->ucode_trace
.function
= iwl_bg_ucode_trace
;
3318 if (!priv
->cfg
->use_isr_legacy
)
3319 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
3320 iwl_irq_tasklet
, (unsigned long)priv
);
3322 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
3323 iwl_irq_tasklet_legacy
, (unsigned long)priv
);
3326 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
)
3328 if (priv
->cfg
->ops
->lib
->cancel_deferred_work
)
3329 priv
->cfg
->ops
->lib
->cancel_deferred_work(priv
);
3331 cancel_delayed_work_sync(&priv
->init_alive_start
);
3332 cancel_delayed_work(&priv
->scan_check
);
3333 cancel_work_sync(&priv
->start_internal_scan
);
3334 cancel_delayed_work(&priv
->alive_start
);
3335 cancel_work_sync(&priv
->beacon_update
);
3336 del_timer_sync(&priv
->statistics_periodic
);
3337 del_timer_sync(&priv
->ucode_trace
);
3340 static void iwl_init_hw_rates(struct iwl_priv
*priv
,
3341 struct ieee80211_rate
*rates
)
3345 for (i
= 0; i
< IWL_RATE_COUNT_LEGACY
; i
++) {
3346 rates
[i
].bitrate
= iwl_rates
[i
].ieee
* 5;
3347 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
3348 rates
[i
].hw_value_short
= i
;
3350 if ((i
>= IWL_FIRST_CCK_RATE
) && (i
<= IWL_LAST_CCK_RATE
)) {
3352 * If CCK != 1M then set short preamble rate flag.
3355 (iwl_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
3356 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
3361 static int iwl_init_drv(struct iwl_priv
*priv
)
3365 priv
->ibss_beacon
= NULL
;
3367 spin_lock_init(&priv
->sta_lock
);
3368 spin_lock_init(&priv
->hcmd_lock
);
3370 INIT_LIST_HEAD(&priv
->free_frames
);
3372 mutex_init(&priv
->mutex
);
3373 mutex_init(&priv
->sync_cmd_mutex
);
3375 /* Clear the driver's (not device's) station table */
3376 iwl_clear_stations_table(priv
);
3378 priv
->ieee_channels
= NULL
;
3379 priv
->ieee_rates
= NULL
;
3380 priv
->band
= IEEE80211_BAND_2GHZ
;
3382 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
3383 priv
->current_ht_config
.smps
= IEEE80211_SMPS_STATIC
;
3384 priv
->missed_beacon_threshold
= IWL_MISSED_BEACON_THRESHOLD_DEF
;
3386 /* initialize force reset */
3387 priv
->force_reset
[IWL_RF_RESET
].reset_duration
=
3388 IWL_DELAY_NEXT_FORCE_RF_RESET
;
3389 priv
->force_reset
[IWL_FW_RESET
].reset_duration
=
3390 IWL_DELAY_NEXT_FORCE_FW_RELOAD
;
3392 /* Choose which receivers/antennas to use */
3393 if (priv
->cfg
->ops
->hcmd
->set_rxon_chain
)
3394 priv
->cfg
->ops
->hcmd
->set_rxon_chain(priv
);
3396 iwl_init_scan_params(priv
);
3398 iwl_reset_qos(priv
);
3400 priv
->qos_data
.qos_active
= 0;
3401 priv
->qos_data
.qos_cap
.val
= 0;
3403 priv
->rates_mask
= IWL_RATES_MASK
;
3404 /* Set the tx_power_user_lmt to the lowest power level
3405 * this value will get overwritten by channel max power avg
3407 priv
->tx_power_user_lmt
= IWL_TX_POWER_TARGET_POWER_MIN
;
3409 ret
= iwl_init_channel_map(priv
);
3411 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
3415 ret
= iwlcore_init_geos(priv
);
3417 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
3418 goto err_free_channel_map
;
3420 iwl_init_hw_rates(priv
, priv
->ieee_rates
);
3424 err_free_channel_map
:
3425 iwl_free_channel_map(priv
);
3430 static void iwl_uninit_drv(struct iwl_priv
*priv
)
3432 iwl_calib_free_results(priv
);
3433 iwlcore_free_geos(priv
);
3434 iwl_free_channel_map(priv
);
3438 static struct attribute
*iwl_sysfs_entries
[] = {
3439 &dev_attr_flags
.attr
,
3440 &dev_attr_filter_flags
.attr
,
3441 &dev_attr_statistics
.attr
,
3442 &dev_attr_temperature
.attr
,
3443 &dev_attr_tx_power
.attr
,
3444 &dev_attr_rts_ht_protection
.attr
,
3445 #ifdef CONFIG_IWLWIFI_DEBUG
3446 &dev_attr_debug_level
.attr
,
3451 static struct attribute_group iwl_attribute_group
= {
3452 .name
= NULL
, /* put in device directory */
3453 .attrs
= iwl_sysfs_entries
,
3456 static struct ieee80211_ops iwl_hw_ops
= {
3458 .start
= iwl_mac_start
,
3459 .stop
= iwl_mac_stop
,
3460 .add_interface
= iwl_mac_add_interface
,
3461 .remove_interface
= iwl_mac_remove_interface
,
3462 .config
= iwl_mac_config
,
3463 .configure_filter
= iwl_configure_filter
,
3464 .set_key
= iwl_mac_set_key
,
3465 .update_tkip_key
= iwl_mac_update_tkip_key
,
3466 .get_stats
= iwl_mac_get_stats
,
3467 .conf_tx
= iwl_mac_conf_tx
,
3468 .reset_tsf
= iwl_mac_reset_tsf
,
3469 .bss_info_changed
= iwl_bss_info_changed
,
3470 .ampdu_action
= iwl_mac_ampdu_action
,
3471 .hw_scan
= iwl_mac_hw_scan
,
3472 .sta_notify
= iwl_mac_sta_notify
,
3475 static int iwl_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
3478 struct iwl_priv
*priv
;
3479 struct ieee80211_hw
*hw
;
3480 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
3481 unsigned long flags
;
3484 /************************
3485 * 1. Allocating HW data
3486 ************************/
3488 /* Disabling hardware scan means that mac80211 will perform scans
3489 * "the hard way", rather than using device's scan. */
3490 if (cfg
->mod_params
->disable_hw_scan
) {
3491 if (iwl_debug_level
& IWL_DL_INFO
)
3492 dev_printk(KERN_DEBUG
, &(pdev
->dev
),
3493 "Disabling hw_scan\n");
3494 iwl_hw_ops
.hw_scan
= NULL
;
3497 hw
= iwl_alloc_all(cfg
, &iwl_hw_ops
);
3503 /* At this point both hw and priv are allocated. */
3505 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
3507 IWL_DEBUG_INFO(priv
, "*** LOAD DRIVER ***\n");
3509 priv
->pci_dev
= pdev
;
3510 priv
->inta_mask
= CSR_INI_SET_MASK
;
3512 #ifdef CONFIG_IWLWIFI_DEBUG
3513 atomic_set(&priv
->restrict_refcnt
, 0);
3515 if (iwl_alloc_traffic_mem(priv
))
3516 IWL_ERR(priv
, "Not enough memory to generate traffic log\n");
3518 /**************************
3519 * 2. Initializing PCI bus
3520 **************************/
3521 if (pci_enable_device(pdev
)) {
3523 goto out_ieee80211_free_hw
;
3526 pci_set_master(pdev
);
3528 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(36));
3530 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(36));
3532 err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32));
3534 err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(32));
3535 /* both attempts failed: */
3537 IWL_WARN(priv
, "No suitable DMA available.\n");
3538 goto out_pci_disable_device
;
3542 err
= pci_request_regions(pdev
, DRV_NAME
);
3544 goto out_pci_disable_device
;
3546 pci_set_drvdata(pdev
, priv
);
3549 /***********************
3550 * 3. Read REV register
3551 ***********************/
3552 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
3553 if (!priv
->hw_base
) {
3555 goto out_pci_release_regions
;
3558 IWL_DEBUG_INFO(priv
, "pci_resource_len = 0x%08llx\n",
3559 (unsigned long long) pci_resource_len(pdev
, 0));
3560 IWL_DEBUG_INFO(priv
, "pci_resource_base = %p\n", priv
->hw_base
);
3562 /* these spin locks will be used in apm_ops.init and EEPROM access
3563 * we should init now
3565 spin_lock_init(&priv
->reg_lock
);
3566 spin_lock_init(&priv
->lock
);
3569 * stop and reset the on-board processor just in case it is in a
3570 * strange state ... like being left stranded by a primary kernel
3571 * and this is now the kdump kernel trying to start up
3573 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
3575 iwl_hw_detect(priv
);
3576 IWL_INFO(priv
, "Detected Intel Wireless WiFi Link %s REV=0x%X\n",
3577 priv
->cfg
->name
, priv
->hw_rev
);
3579 /* We disable the RETRY_TIMEOUT register (0x41) to keep
3580 * PCI Tx retries from interfering with C3 CPU state */
3581 pci_write_config_byte(pdev
, PCI_CFG_RETRY_TIMEOUT
, 0x00);
3583 iwl_prepare_card_hw(priv
);
3584 if (!priv
->hw_ready
) {
3585 IWL_WARN(priv
, "Failed, HW not ready\n");
3592 /* Read the EEPROM */
3593 err
= iwl_eeprom_init(priv
);
3595 IWL_ERR(priv
, "Unable to init EEPROM\n");
3598 err
= iwl_eeprom_check_version(priv
);
3600 goto out_free_eeprom
;
3602 /* extract MAC Address */
3603 iwl_eeprom_get_mac(priv
, priv
->mac_addr
);
3604 IWL_DEBUG_INFO(priv
, "MAC address: %pM\n", priv
->mac_addr
);
3605 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
3607 /************************
3608 * 5. Setup HW constants
3609 ************************/
3610 if (iwl_set_hw_params(priv
)) {
3611 IWL_ERR(priv
, "failed to set hw parameters\n");
3612 goto out_free_eeprom
;
3615 /*******************
3617 *******************/
3619 err
= iwl_init_drv(priv
);
3621 goto out_free_eeprom
;
3622 /* At this point both hw and priv are initialized. */
3624 /********************
3626 ********************/
3627 spin_lock_irqsave(&priv
->lock
, flags
);
3628 iwl_disable_interrupts(priv
);
3629 spin_unlock_irqrestore(&priv
->lock
, flags
);
3631 pci_enable_msi(priv
->pci_dev
);
3633 iwl_alloc_isr_ict(priv
);
3634 err
= request_irq(priv
->pci_dev
->irq
, priv
->cfg
->ops
->lib
->isr
,
3635 IRQF_SHARED
, DRV_NAME
, priv
);
3637 IWL_ERR(priv
, "Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
3638 goto out_disable_msi
;
3640 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl_attribute_group
);
3642 IWL_ERR(priv
, "failed to create sysfs device attributes\n");
3646 iwl_setup_deferred_work(priv
);
3647 iwl_setup_rx_handlers(priv
);
3649 /*********************************************
3650 * 8. Enable interrupts and read RFKILL state
3651 *********************************************/
3653 /* enable interrupts if needed: hw bug w/a */
3654 pci_read_config_word(priv
->pci_dev
, PCI_COMMAND
, &pci_cmd
);
3655 if (pci_cmd
& PCI_COMMAND_INTX_DISABLE
) {
3656 pci_cmd
&= ~PCI_COMMAND_INTX_DISABLE
;
3657 pci_write_config_word(priv
->pci_dev
, PCI_COMMAND
, pci_cmd
);
3660 iwl_enable_interrupts(priv
);
3662 /* If platform's RF_KILL switch is NOT set to KILL */
3663 if (iwl_read32(priv
, CSR_GP_CNTRL
) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
3664 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3666 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3668 wiphy_rfkill_set_hw_state(priv
->hw
->wiphy
,
3669 test_bit(STATUS_RF_KILL_HW
, &priv
->status
));
3671 iwl_power_initialize(priv
);
3672 iwl_tt_initialize(priv
);
3674 err
= iwl_request_firmware(priv
, true);
3676 goto out_remove_sysfs
;
3681 destroy_workqueue(priv
->workqueue
);
3682 priv
->workqueue
= NULL
;
3683 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl_attribute_group
);
3685 free_irq(priv
->pci_dev
->irq
, priv
);
3686 iwl_free_isr_ict(priv
);
3688 pci_disable_msi(priv
->pci_dev
);
3689 iwl_uninit_drv(priv
);
3691 iwl_eeprom_free(priv
);
3693 pci_iounmap(pdev
, priv
->hw_base
);
3694 out_pci_release_regions
:
3695 pci_set_drvdata(pdev
, NULL
);
3696 pci_release_regions(pdev
);
3697 out_pci_disable_device
:
3698 pci_disable_device(pdev
);
3699 out_ieee80211_free_hw
:
3700 iwl_free_traffic_mem(priv
);
3701 ieee80211_free_hw(priv
->hw
);
3706 static void __devexit
iwl_pci_remove(struct pci_dev
*pdev
)
3708 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
3709 unsigned long flags
;
3714 IWL_DEBUG_INFO(priv
, "*** UNLOAD DRIVER ***\n");
3716 iwl_dbgfs_unregister(priv
);
3717 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl_attribute_group
);
3719 /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
3720 * to be called and iwl_down since we are removing the device
3721 * we need to set STATUS_EXIT_PENDING bit.
3723 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3724 if (priv
->mac80211_registered
) {
3725 ieee80211_unregister_hw(priv
->hw
);
3726 priv
->mac80211_registered
= 0;
3732 * Make sure device is reset to low power before unloading driver.
3733 * This may be redundant with iwl_down(), but there are paths to
3734 * run iwl_down() without calling apm_ops.stop(), and there are
3735 * paths to avoid running iwl_down() at all before leaving driver.
3736 * This (inexpensive) call *makes sure* device is reset.
3738 priv
->cfg
->ops
->lib
->apm_ops
.stop(priv
);
3742 /* make sure we flush any pending irq or
3743 * tasklet for the driver
3745 spin_lock_irqsave(&priv
->lock
, flags
);
3746 iwl_disable_interrupts(priv
);
3747 spin_unlock_irqrestore(&priv
->lock
, flags
);
3749 iwl_synchronize_irq(priv
);
3751 iwl_dealloc_ucode_pci(priv
);
3754 iwl_rx_queue_free(priv
, &priv
->rxq
);
3755 iwl_hw_txq_ctx_free(priv
);
3757 iwl_clear_stations_table(priv
);
3758 iwl_eeprom_free(priv
);
3761 /*netif_stop_queue(dev); */
3762 flush_workqueue(priv
->workqueue
);
3764 /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
3765 * priv->workqueue... so we can't take down the workqueue
3767 destroy_workqueue(priv
->workqueue
);
3768 priv
->workqueue
= NULL
;
3769 iwl_free_traffic_mem(priv
);
3771 free_irq(priv
->pci_dev
->irq
, priv
);
3772 pci_disable_msi(priv
->pci_dev
);
3773 pci_iounmap(pdev
, priv
->hw_base
);
3774 pci_release_regions(pdev
);
3775 pci_disable_device(pdev
);
3776 pci_set_drvdata(pdev
, NULL
);
3778 iwl_uninit_drv(priv
);
3780 iwl_free_isr_ict(priv
);
3782 if (priv
->ibss_beacon
)
3783 dev_kfree_skb(priv
->ibss_beacon
);
3785 ieee80211_free_hw(priv
->hw
);
3789 /*****************************************************************************
3791 * driver and module entry point
3793 *****************************************************************************/
3795 /* Hardware specific file defines the PCI IDs table for that hardware module */
3796 static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids
) = {
3797 #ifdef CONFIG_IWL4965
3798 {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID
, iwl4965_agn_cfg
)},
3799 {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID
, iwl4965_agn_cfg
)},
3800 #endif /* CONFIG_IWL4965 */
3801 #ifdef CONFIG_IWL5000
3802 /* 5100 Series WiFi */
3803 {IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg
)}, /* Mini Card */
3804 {IWL_PCI_DEVICE(0x4232, 0x1301, iwl5100_agn_cfg
)}, /* Half Mini Card */
3805 {IWL_PCI_DEVICE(0x4232, 0x1204, iwl5100_agn_cfg
)}, /* Mini Card */
3806 {IWL_PCI_DEVICE(0x4232, 0x1304, iwl5100_agn_cfg
)}, /* Half Mini Card */
3807 {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bgn_cfg
)}, /* Mini Card */
3808 {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bgn_cfg
)}, /* Half Mini Card */
3809 {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg
)}, /* Mini Card */
3810 {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg
)}, /* Half Mini Card */
3811 {IWL_PCI_DEVICE(0x4232, 0x1221, iwl5100_agn_cfg
)}, /* Mini Card */
3812 {IWL_PCI_DEVICE(0x4232, 0x1321, iwl5100_agn_cfg
)}, /* Half Mini Card */
3813 {IWL_PCI_DEVICE(0x4232, 0x1224, iwl5100_agn_cfg
)}, /* Mini Card */
3814 {IWL_PCI_DEVICE(0x4232, 0x1324, iwl5100_agn_cfg
)}, /* Half Mini Card */
3815 {IWL_PCI_DEVICE(0x4232, 0x1225, iwl5100_bgn_cfg
)}, /* Mini Card */
3816 {IWL_PCI_DEVICE(0x4232, 0x1325, iwl5100_bgn_cfg
)}, /* Half Mini Card */
3817 {IWL_PCI_DEVICE(0x4232, 0x1226, iwl5100_abg_cfg
)}, /* Mini Card */
3818 {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg
)}, /* Half Mini Card */
3819 {IWL_PCI_DEVICE(0x4237, 0x1211, iwl5100_agn_cfg
)}, /* Mini Card */
3820 {IWL_PCI_DEVICE(0x4237, 0x1311, iwl5100_agn_cfg
)}, /* Half Mini Card */
3821 {IWL_PCI_DEVICE(0x4237, 0x1214, iwl5100_agn_cfg
)}, /* Mini Card */
3822 {IWL_PCI_DEVICE(0x4237, 0x1314, iwl5100_agn_cfg
)}, /* Half Mini Card */
3823 {IWL_PCI_DEVICE(0x4237, 0x1215, iwl5100_bgn_cfg
)}, /* Mini Card */
3824 {IWL_PCI_DEVICE(0x4237, 0x1315, iwl5100_bgn_cfg
)}, /* Half Mini Card */
3825 {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg
)}, /* Mini Card */
3826 {IWL_PCI_DEVICE(0x4237, 0x1316, iwl5100_abg_cfg
)}, /* Half Mini Card */
3828 /* 5300 Series WiFi */
3829 {IWL_PCI_DEVICE(0x4235, 0x1021, iwl5300_agn_cfg
)}, /* Mini Card */
3830 {IWL_PCI_DEVICE(0x4235, 0x1121, iwl5300_agn_cfg
)}, /* Half Mini Card */
3831 {IWL_PCI_DEVICE(0x4235, 0x1024, iwl5300_agn_cfg
)}, /* Mini Card */
3832 {IWL_PCI_DEVICE(0x4235, 0x1124, iwl5300_agn_cfg
)}, /* Half Mini Card */
3833 {IWL_PCI_DEVICE(0x4235, 0x1001, iwl5300_agn_cfg
)}, /* Mini Card */
3834 {IWL_PCI_DEVICE(0x4235, 0x1101, iwl5300_agn_cfg
)}, /* Half Mini Card */
3835 {IWL_PCI_DEVICE(0x4235, 0x1004, iwl5300_agn_cfg
)}, /* Mini Card */
3836 {IWL_PCI_DEVICE(0x4235, 0x1104, iwl5300_agn_cfg
)}, /* Half Mini Card */
3837 {IWL_PCI_DEVICE(0x4236, 0x1011, iwl5300_agn_cfg
)}, /* Mini Card */
3838 {IWL_PCI_DEVICE(0x4236, 0x1111, iwl5300_agn_cfg
)}, /* Half Mini Card */
3839 {IWL_PCI_DEVICE(0x4236, 0x1014, iwl5300_agn_cfg
)}, /* Mini Card */
3840 {IWL_PCI_DEVICE(0x4236, 0x1114, iwl5300_agn_cfg
)}, /* Half Mini Card */
3842 /* 5350 Series WiFi/WiMax */
3843 {IWL_PCI_DEVICE(0x423A, 0x1001, iwl5350_agn_cfg
)}, /* Mini Card */
3844 {IWL_PCI_DEVICE(0x423A, 0x1021, iwl5350_agn_cfg
)}, /* Mini Card */
3845 {IWL_PCI_DEVICE(0x423B, 0x1011, iwl5350_agn_cfg
)}, /* Mini Card */
3847 /* 5150 Series Wifi/WiMax */
3848 {IWL_PCI_DEVICE(0x423C, 0x1201, iwl5150_agn_cfg
)}, /* Mini Card */
3849 {IWL_PCI_DEVICE(0x423C, 0x1301, iwl5150_agn_cfg
)}, /* Half Mini Card */
3850 {IWL_PCI_DEVICE(0x423C, 0x1206, iwl5150_abg_cfg
)}, /* Mini Card */
3851 {IWL_PCI_DEVICE(0x423C, 0x1306, iwl5150_abg_cfg
)}, /* Half Mini Card */
3852 {IWL_PCI_DEVICE(0x423C, 0x1221, iwl5150_agn_cfg
)}, /* Mini Card */
3853 {IWL_PCI_DEVICE(0x423C, 0x1321, iwl5150_agn_cfg
)}, /* Half Mini Card */
3855 {IWL_PCI_DEVICE(0x423D, 0x1211, iwl5150_agn_cfg
)}, /* Mini Card */
3856 {IWL_PCI_DEVICE(0x423D, 0x1311, iwl5150_agn_cfg
)}, /* Half Mini Card */
3857 {IWL_PCI_DEVICE(0x423D, 0x1216, iwl5150_abg_cfg
)}, /* Mini Card */
3858 {IWL_PCI_DEVICE(0x423D, 0x1316, iwl5150_abg_cfg
)}, /* Half Mini Card */
3861 {IWL_PCI_DEVICE(0x422B, 0x1101, iwl6000_3agn_cfg
)},
3862 {IWL_PCI_DEVICE(0x422B, 0x1121, iwl6000_3agn_cfg
)},
3863 {IWL_PCI_DEVICE(0x422C, 0x1301, iwl6000i_2agn_cfg
)},
3864 {IWL_PCI_DEVICE(0x422C, 0x1306, iwl6000i_2abg_cfg
)},
3865 {IWL_PCI_DEVICE(0x422C, 0x1307, iwl6000i_2bg_cfg
)},
3866 {IWL_PCI_DEVICE(0x422C, 0x1321, iwl6000i_2agn_cfg
)},
3867 {IWL_PCI_DEVICE(0x422C, 0x1326, iwl6000i_2abg_cfg
)},
3868 {IWL_PCI_DEVICE(0x4238, 0x1111, iwl6000_3agn_cfg
)},
3869 {IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg
)},
3870 {IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg
)},
3872 /* 6x50 WiFi/WiMax Series */
3873 {IWL_PCI_DEVICE(0x0087, 0x1301, iwl6050_2agn_cfg
)},
3874 {IWL_PCI_DEVICE(0x0087, 0x1306, iwl6050_2abg_cfg
)},
3875 {IWL_PCI_DEVICE(0x0087, 0x1321, iwl6050_2agn_cfg
)},
3876 {IWL_PCI_DEVICE(0x0087, 0x1326, iwl6050_2abg_cfg
)},
3877 {IWL_PCI_DEVICE(0x0089, 0x1311, iwl6050_2agn_cfg
)},
3878 {IWL_PCI_DEVICE(0x0089, 0x1316, iwl6050_2abg_cfg
)},
3880 /* 1000 Series WiFi */
3881 {IWL_PCI_DEVICE(0x0083, 0x1205, iwl1000_bgn_cfg
)},
3882 {IWL_PCI_DEVICE(0x0083, 0x1305, iwl1000_bgn_cfg
)},
3883 {IWL_PCI_DEVICE(0x0083, 0x1225, iwl1000_bgn_cfg
)},
3884 {IWL_PCI_DEVICE(0x0083, 0x1325, iwl1000_bgn_cfg
)},
3885 {IWL_PCI_DEVICE(0x0084, 0x1215, iwl1000_bgn_cfg
)},
3886 {IWL_PCI_DEVICE(0x0084, 0x1315, iwl1000_bgn_cfg
)},
3887 {IWL_PCI_DEVICE(0x0083, 0x1206, iwl1000_bg_cfg
)},
3888 {IWL_PCI_DEVICE(0x0083, 0x1306, iwl1000_bg_cfg
)},
3889 {IWL_PCI_DEVICE(0x0083, 0x1226, iwl1000_bg_cfg
)},
3890 {IWL_PCI_DEVICE(0x0083, 0x1326, iwl1000_bg_cfg
)},
3891 {IWL_PCI_DEVICE(0x0084, 0x1216, iwl1000_bg_cfg
)},
3892 {IWL_PCI_DEVICE(0x0084, 0x1316, iwl1000_bg_cfg
)},
3893 #endif /* CONFIG_IWL5000 */
3897 MODULE_DEVICE_TABLE(pci
, iwl_hw_card_ids
);
3899 static struct pci_driver iwl_driver
= {
3901 .id_table
= iwl_hw_card_ids
,
3902 .probe
= iwl_pci_probe
,
3903 .remove
= __devexit_p(iwl_pci_remove
),
3905 .suspend
= iwl_pci_suspend
,
3906 .resume
= iwl_pci_resume
,
3910 static int __init
iwl_init(void)
3914 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
3915 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
3917 ret
= iwlagn_rate_control_register();
3919 printk(KERN_ERR DRV_NAME
3920 "Unable to register rate control algorithm: %d\n", ret
);
3924 ret
= pci_register_driver(&iwl_driver
);
3926 printk(KERN_ERR DRV_NAME
"Unable to initialize PCI module\n");
3927 goto error_register
;
3933 iwlagn_rate_control_unregister();
3937 static void __exit
iwl_exit(void)
3939 pci_unregister_driver(&iwl_driver
);
3940 iwlagn_rate_control_unregister();
3943 module_exit(iwl_exit
);
3944 module_init(iwl_init
);
3946 #ifdef CONFIG_IWLWIFI_DEBUG
3947 module_param_named(debug50
, iwl_debug_level
, uint
, S_IRUGO
);
3948 MODULE_PARM_DESC(debug50
, "50XX debug output mask (deprecated)");
3949 module_param_named(debug
, iwl_debug_level
, uint
, S_IRUGO
| S_IWUSR
);
3950 MODULE_PARM_DESC(debug
, "debug output mask");