1 /******************************************************************************
3 * Copyright(c) 2003 - 2009 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/skbuff.h>
37 #include <linux/netdevice.h>
38 #include <linux/wireless.h>
39 #include <linux/firmware.h>
40 #include <linux/etherdevice.h>
41 #include <linux/if_arp.h>
43 #include <net/ieee80211_radiotap.h>
44 #include <net/lib80211.h>
45 #include <net/mac80211.h>
47 #include <asm/div64.h>
49 #define DRV_NAME "iwl3945"
52 #include "iwl-3945-fh.h"
53 #include "iwl-commands.h"
56 #include "iwl-helpers.h"
61 * module name, copyright, version, etc.
64 #define DRV_DESCRIPTION \
65 "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
67 #ifdef CONFIG_IWLWIFI_DEBUG
73 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
79 #define IWL39_VERSION "1.2.26k" VD VS
80 #define DRV_COPYRIGHT "Copyright(c) 2003-2009 Intel Corporation"
81 #define DRV_AUTHOR "<ilw@linux.intel.com>"
82 #define DRV_VERSION IWL39_VERSION
85 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
86 MODULE_VERSION(DRV_VERSION
);
87 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
88 MODULE_LICENSE("GPL");
90 /* module parameters */
91 struct iwl_mod_params iwl3945_mod_params
= {
92 .num_of_queues
= IWL39_MAX_NUM_QUEUES
,
95 /* the rest are 0 by default */
98 /*************** STATION TABLE MANAGEMENT ****
99 * mac80211 should be examined to determine if sta_info is duplicating
100 * the functionality provided here
103 /**************************************************************/
104 #if 0 /* temporary disable till we add real remove station */
106 * iwl3945_remove_station - Remove driver's knowledge of station.
108 * NOTE: This does not remove station from device's station table.
110 static u8
iwl3945_remove_station(struct iwl_priv
*priv
, const u8
*addr
, int is_ap
)
112 int index
= IWL_INVALID_STATION
;
116 spin_lock_irqsave(&priv
->sta_lock
, flags
);
120 else if (is_broadcast_ether_addr(addr
))
121 index
= priv
->hw_params
.bcast_sta_id
;
123 for (i
= IWL_STA_ID
; i
< priv
->hw_params
.max_stations
; i
++)
124 if (priv
->stations_39
[i
].used
&&
125 !compare_ether_addr(priv
->stations_39
[i
].sta
.sta
.addr
,
131 if (unlikely(index
== IWL_INVALID_STATION
))
134 if (priv
->stations_39
[index
].used
) {
135 priv
->stations_39
[index
].used
= 0;
136 priv
->num_stations
--;
139 BUG_ON(priv
->num_stations
< 0);
142 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
148 * iwl3945_clear_stations_table - Clear the driver's station table
150 * NOTE: This does not clear or otherwise alter the device's station table.
152 static void iwl3945_clear_stations_table(struct iwl_priv
*priv
)
156 spin_lock_irqsave(&priv
->sta_lock
, flags
);
158 priv
->num_stations
= 0;
159 memset(priv
->stations_39
, 0, sizeof(priv
->stations_39
));
161 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
165 * iwl3945_add_station - Add station to station tables in driver and device
167 u8
iwl3945_add_station(struct iwl_priv
*priv
, const u8
*addr
, int is_ap
, u8 flags
)
170 int index
= IWL_INVALID_STATION
;
171 struct iwl3945_station_entry
*station
;
172 unsigned long flags_spin
;
175 spin_lock_irqsave(&priv
->sta_lock
, flags_spin
);
178 else if (is_broadcast_ether_addr(addr
))
179 index
= priv
->hw_params
.bcast_sta_id
;
181 for (i
= IWL_STA_ID
; i
< priv
->hw_params
.max_stations
; i
++) {
182 if (!compare_ether_addr(priv
->stations_39
[i
].sta
.sta
.addr
,
188 if (!priv
->stations_39
[i
].used
&&
189 index
== IWL_INVALID_STATION
)
193 /* These two conditions has the same outcome but keep them separate
194 since they have different meaning */
195 if (unlikely(index
== IWL_INVALID_STATION
)) {
196 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
200 if (priv
->stations_39
[index
].used
&&
201 !compare_ether_addr(priv
->stations_39
[index
].sta
.sta
.addr
, addr
)) {
202 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
206 IWL_DEBUG_ASSOC(priv
, "Add STA ID %d: %pM\n", index
, addr
);
207 station
= &priv
->stations_39
[index
];
209 priv
->num_stations
++;
211 /* Set up the REPLY_ADD_STA command to send to device */
212 memset(&station
->sta
, 0, sizeof(struct iwl3945_addsta_cmd
));
213 memcpy(station
->sta
.sta
.addr
, addr
, ETH_ALEN
);
214 station
->sta
.mode
= 0;
215 station
->sta
.sta
.sta_id
= index
;
216 station
->sta
.station_flags
= 0;
218 if (priv
->band
== IEEE80211_BAND_5GHZ
)
219 rate
= IWL_RATE_6M_PLCP
;
221 rate
= IWL_RATE_1M_PLCP
;
223 /* Turn on both antennas for the station... */
224 station
->sta
.rate_n_flags
=
225 iwl3945_hw_set_rate_n_flags(rate
, RATE_MCS_ANT_AB_MSK
);
227 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
229 /* Add station to device's station table */
230 iwl_send_add_sta(priv
,
231 (struct iwl_addsta_cmd
*)&station
->sta
, flags
);
236 static int iwl3945_send_rxon_assoc(struct iwl_priv
*priv
)
239 struct iwl_rx_packet
*res
= NULL
;
240 struct iwl3945_rxon_assoc_cmd rxon_assoc
;
241 struct iwl_host_cmd cmd
= {
242 .id
= REPLY_RXON_ASSOC
,
243 .len
= sizeof(rxon_assoc
),
244 .meta
.flags
= CMD_WANT_SKB
,
247 const struct iwl_rxon_cmd
*rxon1
= &priv
->staging_rxon
;
248 const struct iwl_rxon_cmd
*rxon2
= &priv
->active_rxon
;
250 if ((rxon1
->flags
== rxon2
->flags
) &&
251 (rxon1
->filter_flags
== rxon2
->filter_flags
) &&
252 (rxon1
->cck_basic_rates
== rxon2
->cck_basic_rates
) &&
253 (rxon1
->ofdm_basic_rates
== rxon2
->ofdm_basic_rates
)) {
254 IWL_DEBUG_INFO(priv
, "Using current RXON_ASSOC. Not resending.\n");
258 rxon_assoc
.flags
= priv
->staging_rxon
.flags
;
259 rxon_assoc
.filter_flags
= priv
->staging_rxon
.filter_flags
;
260 rxon_assoc
.ofdm_basic_rates
= priv
->staging_rxon
.ofdm_basic_rates
;
261 rxon_assoc
.cck_basic_rates
= priv
->staging_rxon
.cck_basic_rates
;
262 rxon_assoc
.reserved
= 0;
264 rc
= iwl_send_cmd_sync(priv
, &cmd
);
268 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
269 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
270 IWL_ERR(priv
, "Bad return from REPLY_RXON_ASSOC command\n");
274 priv
->alloc_rxb_skb
--;
275 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
281 * iwl3945_get_antenna_flags - Get antenna flags for RXON command
282 * @priv: eeprom and antenna fields are used to determine antenna flags
284 * priv->eeprom39 is used to determine if antenna AUX/MAIN are reversed
285 * iwl3945_mod_params.antenna specifies the antenna diversity mode:
287 * IWL_ANTENNA_DIVERSITY - NIC selects best antenna by itself
288 * IWL_ANTENNA_MAIN - Force MAIN antenna
289 * IWL_ANTENNA_AUX - Force AUX antenna
291 __le32
iwl3945_get_antenna_flags(const struct iwl_priv
*priv
)
293 struct iwl3945_eeprom
*eeprom
= (struct iwl3945_eeprom
*)priv
->eeprom
;
295 switch (iwl3945_mod_params
.antenna
) {
296 case IWL_ANTENNA_DIVERSITY
:
299 case IWL_ANTENNA_MAIN
:
300 if (eeprom
->antenna_switch_type
)
301 return RXON_FLG_DIS_DIV_MSK
| RXON_FLG_ANT_B_MSK
;
302 return RXON_FLG_DIS_DIV_MSK
| RXON_FLG_ANT_A_MSK
;
304 case IWL_ANTENNA_AUX
:
305 if (eeprom
->antenna_switch_type
)
306 return RXON_FLG_DIS_DIV_MSK
| RXON_FLG_ANT_A_MSK
;
307 return RXON_FLG_DIS_DIV_MSK
| RXON_FLG_ANT_B_MSK
;
310 /* bad antenna selector value */
311 IWL_ERR(priv
, "Bad antenna selector value (0x%x)\n",
312 iwl3945_mod_params
.antenna
);
314 return 0; /* "diversity" is default if error */
318 * iwl3945_commit_rxon - commit staging_rxon to hardware
320 * The RXON command in staging_rxon is committed to the hardware and
321 * the active_rxon structure is updated with the new data. This
322 * function correctly transitions out of the RXON_ASSOC_MSK state if
323 * a HW tune is required based on the RXON structure changes.
325 static int iwl3945_commit_rxon(struct iwl_priv
*priv
)
327 /* cast away the const for active_rxon in this function */
328 struct iwl3945_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
329 struct iwl3945_rxon_cmd
*staging_rxon
= (void *)&priv
->staging_rxon
;
332 !!(priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
);
334 if (!iwl_is_alive(priv
))
337 /* always get timestamp with Rx frame */
338 staging_rxon
->flags
|= RXON_FLG_TSF2HOST_MSK
;
341 staging_rxon
->flags
&=
342 ~(RXON_FLG_DIS_DIV_MSK
| RXON_FLG_ANT_SEL_MSK
);
343 staging_rxon
->flags
|= iwl3945_get_antenna_flags(priv
);
345 rc
= iwl_check_rxon_cmd(priv
);
347 IWL_ERR(priv
, "Invalid RXON configuration. Not committing.\n");
351 /* If we don't need to send a full RXON, we can use
352 * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
353 * and other flags for the current radio configuration. */
354 if (!iwl_full_rxon_required(priv
)) {
355 rc
= iwl3945_send_rxon_assoc(priv
);
357 IWL_ERR(priv
, "Error setting RXON_ASSOC "
358 "configuration (%d).\n", rc
);
362 memcpy(active_rxon
, staging_rxon
, sizeof(*active_rxon
));
367 /* If we are currently associated and the new config requires
368 * an RXON_ASSOC and the new config wants the associated mask enabled,
369 * we must clear the associated from the active configuration
370 * before we apply the new config */
371 if (iwl_is_associated(priv
) && new_assoc
) {
372 IWL_DEBUG_INFO(priv
, "Toggling associated bit on current RXON\n");
373 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
376 * reserved4 and 5 could have been filled by the iwlcore code.
377 * Let's clear them before pushing to the 3945.
379 active_rxon
->reserved4
= 0;
380 active_rxon
->reserved5
= 0;
381 rc
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
382 sizeof(struct iwl3945_rxon_cmd
),
385 /* If the mask clearing failed then we set
386 * active_rxon back to what it was previously */
388 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
389 IWL_ERR(priv
, "Error clearing ASSOC_MSK on current "
390 "configuration (%d).\n", rc
);
395 IWL_DEBUG_INFO(priv
, "Sending RXON\n"
396 "* with%s RXON_FILTER_ASSOC_MSK\n"
399 (new_assoc
? "" : "out"),
400 le16_to_cpu(staging_rxon
->channel
),
401 staging_rxon
->bssid_addr
);
404 * reserved4 and 5 could have been filled by the iwlcore code.
405 * Let's clear them before pushing to the 3945.
407 staging_rxon
->reserved4
= 0;
408 staging_rxon
->reserved5
= 0;
410 iwl_set_rxon_hwcrypto(priv
, !priv
->hw_params
.sw_crypto
);
412 /* Apply the new configuration */
413 rc
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
414 sizeof(struct iwl3945_rxon_cmd
),
417 IWL_ERR(priv
, "Error setting new configuration (%d).\n", rc
);
421 memcpy(active_rxon
, staging_rxon
, sizeof(*active_rxon
));
423 iwl3945_clear_stations_table(priv
);
425 /* If we issue a new RXON command which required a tune then we must
426 * send a new TXPOWER command or we won't be able to Tx any frames */
427 rc
= priv
->cfg
->ops
->lib
->send_tx_power(priv
);
429 IWL_ERR(priv
, "Error setting Tx power (%d).\n", rc
);
433 /* Add the broadcast address so we can send broadcast frames */
434 if (iwl3945_add_station(priv
, iwl_bcast_addr
, 0, 0) ==
435 IWL_INVALID_STATION
) {
436 IWL_ERR(priv
, "Error adding BROADCAST address for transmit.\n");
440 /* If we have set the ASSOC_MSK and we are in BSS mode then
441 * add the IWL_AP_ID to the station rate table */
442 if (iwl_is_associated(priv
) &&
443 (priv
->iw_mode
== NL80211_IFTYPE_STATION
))
444 if (iwl3945_add_station(priv
, priv
->active_rxon
.bssid_addr
,
446 == IWL_INVALID_STATION
) {
447 IWL_ERR(priv
, "Error adding AP address for transmit\n");
451 /* Init the hardware's rate fallback order based on the band */
452 rc
= iwl3945_init_hw_rate_table(priv
);
454 IWL_ERR(priv
, "Error setting HW rate table: %02X\n", rc
);
461 static int iwl3945_set_ccmp_dynamic_key_info(struct iwl_priv
*priv
,
462 struct ieee80211_key_conf
*keyconf
,
466 __le16 key_flags
= 0;
469 key_flags
|= (STA_KEY_FLG_CCMP
| STA_KEY_FLG_MAP_KEY_MSK
);
470 key_flags
|= cpu_to_le16(keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
472 if (sta_id
== priv
->hw_params
.bcast_sta_id
)
473 key_flags
|= STA_KEY_MULTICAST_MSK
;
475 keyconf
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
476 keyconf
->hw_key_idx
= keyconf
->keyidx
;
477 key_flags
&= ~STA_KEY_FLG_INVALID
;
479 spin_lock_irqsave(&priv
->sta_lock
, flags
);
480 priv
->stations_39
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
481 priv
->stations_39
[sta_id
].keyinfo
.keylen
= keyconf
->keylen
;
482 memcpy(priv
->stations_39
[sta_id
].keyinfo
.key
, keyconf
->key
,
485 memcpy(priv
->stations_39
[sta_id
].sta
.key
.key
, keyconf
->key
,
488 if ((priv
->stations
[sta_id
].sta
.key
.key_flags
& STA_KEY_FLG_ENCRYPT_MSK
)
489 == STA_KEY_FLG_NO_ENC
)
490 priv
->stations
[sta_id
].sta
.key
.key_offset
=
491 iwl_get_free_ucode_key_index(priv
);
492 /* else, we are overriding an existing key => no need to allocated room
495 WARN(priv
->stations
[sta_id
].sta
.key
.key_offset
== WEP_INVALID_OFFSET
,
496 "no space for a new key");
498 priv
->stations_39
[sta_id
].sta
.key
.key_flags
= key_flags
;
499 priv
->stations_39
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
500 priv
->stations_39
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
502 IWL_DEBUG_INFO(priv
, "hwcrypto: modify ucode station key info\n");
504 ret
= iwl_send_add_sta(priv
,
505 (struct iwl_addsta_cmd
*)&priv
->stations_39
[sta_id
].sta
, CMD_ASYNC
);
507 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
512 static int iwl3945_set_tkip_dynamic_key_info(struct iwl_priv
*priv
,
513 struct ieee80211_key_conf
*keyconf
,
519 static int iwl3945_set_wep_dynamic_key_info(struct iwl_priv
*priv
,
520 struct ieee80211_key_conf
*keyconf
,
526 static int iwl3945_clear_sta_key_info(struct iwl_priv
*priv
, u8 sta_id
)
530 spin_lock_irqsave(&priv
->sta_lock
, flags
);
531 memset(&priv
->stations_39
[sta_id
].keyinfo
, 0, sizeof(struct iwl3945_hw_key
));
532 memset(&priv
->stations_39
[sta_id
].sta
.key
, 0,
533 sizeof(struct iwl4965_keyinfo
));
534 priv
->stations_39
[sta_id
].sta
.key
.key_flags
= STA_KEY_FLG_NO_ENC
;
535 priv
->stations_39
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
536 priv
->stations_39
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
537 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
539 IWL_DEBUG_INFO(priv
, "hwcrypto: clear ucode station key info\n");
540 iwl_send_add_sta(priv
,
541 (struct iwl_addsta_cmd
*)&priv
->stations_39
[sta_id
].sta
, 0);
545 static int iwl3945_set_dynamic_key(struct iwl_priv
*priv
,
546 struct ieee80211_key_conf
*keyconf
, u8 sta_id
)
550 keyconf
->hw_key_idx
= HW_KEY_DYNAMIC
;
552 switch (keyconf
->alg
) {
554 ret
= iwl3945_set_ccmp_dynamic_key_info(priv
, keyconf
, sta_id
);
557 ret
= iwl3945_set_tkip_dynamic_key_info(priv
, keyconf
, sta_id
);
560 ret
= iwl3945_set_wep_dynamic_key_info(priv
, keyconf
, sta_id
);
563 IWL_ERR(priv
,"Unknown alg: %s alg = %d\n", __func__
, keyconf
->alg
);
567 IWL_DEBUG_WEP(priv
, "Set dynamic key: alg= %d len=%d idx=%d sta=%d ret=%d\n",
568 keyconf
->alg
, keyconf
->keylen
, keyconf
->keyidx
,
574 static int iwl3945_remove_static_key(struct iwl_priv
*priv
)
576 int ret
= -EOPNOTSUPP
;
581 static int iwl3945_set_static_key(struct iwl_priv
*priv
,
582 struct ieee80211_key_conf
*key
)
584 if (key
->alg
== ALG_WEP
)
587 IWL_ERR(priv
, "Static key invalid: alg %d\n", key
->alg
);
591 static void iwl3945_clear_free_frames(struct iwl_priv
*priv
)
593 struct list_head
*element
;
595 IWL_DEBUG_INFO(priv
, "%d frames on pre-allocated heap on clear.\n",
598 while (!list_empty(&priv
->free_frames
)) {
599 element
= priv
->free_frames
.next
;
601 kfree(list_entry(element
, struct iwl3945_frame
, list
));
602 priv
->frames_count
--;
605 if (priv
->frames_count
) {
606 IWL_WARN(priv
, "%d frames still in use. Did we lose one?\n",
608 priv
->frames_count
= 0;
612 static struct iwl3945_frame
*iwl3945_get_free_frame(struct iwl_priv
*priv
)
614 struct iwl3945_frame
*frame
;
615 struct list_head
*element
;
616 if (list_empty(&priv
->free_frames
)) {
617 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
619 IWL_ERR(priv
, "Could not allocate frame!\n");
623 priv
->frames_count
++;
627 element
= priv
->free_frames
.next
;
629 return list_entry(element
, struct iwl3945_frame
, list
);
632 static void iwl3945_free_frame(struct iwl_priv
*priv
, struct iwl3945_frame
*frame
)
634 memset(frame
, 0, sizeof(*frame
));
635 list_add(&frame
->list
, &priv
->free_frames
);
638 unsigned int iwl3945_fill_beacon_frame(struct iwl_priv
*priv
,
639 struct ieee80211_hdr
*hdr
,
643 if (!iwl_is_associated(priv
) || !priv
->ibss_beacon
||
644 ((priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) &&
645 (priv
->iw_mode
!= NL80211_IFTYPE_AP
)))
648 if (priv
->ibss_beacon
->len
> left
)
651 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
653 return priv
->ibss_beacon
->len
;
656 static int iwl3945_send_beacon_cmd(struct iwl_priv
*priv
)
658 struct iwl3945_frame
*frame
;
659 unsigned int frame_size
;
663 frame
= iwl3945_get_free_frame(priv
);
666 IWL_ERR(priv
, "Could not obtain free frame buffer for beacon "
671 rate
= iwl_rate_get_lowest_plcp(priv
);
673 frame_size
= iwl3945_hw_get_beacon_cmd(priv
, frame
, rate
);
675 rc
= iwl_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
678 iwl3945_free_frame(priv
, frame
);
683 static void iwl3945_unset_hw_params(struct iwl_priv
*priv
)
685 if (priv
->shared_virt
)
686 pci_free_consistent(priv
->pci_dev
,
687 sizeof(struct iwl3945_shared
),
692 #define MAX_UCODE_BEACON_INTERVAL 1024
693 #define INTEL_CONN_LISTEN_INTERVAL cpu_to_le16(0xA)
695 static __le16
iwl3945_adjust_beacon_interval(u16 beacon_val
)
698 u16 beacon_factor
= 0;
701 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
702 / MAX_UCODE_BEACON_INTERVAL
;
703 new_val
= beacon_val
/ beacon_factor
;
705 return cpu_to_le16(new_val
);
708 static void iwl3945_setup_rxon_timing(struct iwl_priv
*priv
)
710 u64 interval_tm_unit
;
713 struct ieee80211_conf
*conf
= NULL
;
716 conf
= ieee80211_get_hw_conf(priv
->hw
);
718 spin_lock_irqsave(&priv
->lock
, flags
);
719 priv
->rxon_timing
.timestamp
= cpu_to_le64(priv
->timestamp
);
720 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
722 tsf
= priv
->timestamp
;
724 beacon_int
= priv
->beacon_int
;
725 spin_unlock_irqrestore(&priv
->lock
, flags
);
727 if (priv
->iw_mode
== NL80211_IFTYPE_STATION
) {
728 if (beacon_int
== 0) {
729 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
730 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
732 priv
->rxon_timing
.beacon_interval
=
733 cpu_to_le16(beacon_int
);
734 priv
->rxon_timing
.beacon_interval
=
735 iwl3945_adjust_beacon_interval(
736 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
739 priv
->rxon_timing
.atim_window
= 0;
741 priv
->rxon_timing
.beacon_interval
=
742 iwl3945_adjust_beacon_interval(conf
->beacon_int
);
743 /* TODO: we need to get atim_window from upper stack
744 * for now we set to 0 */
745 priv
->rxon_timing
.atim_window
= 0;
749 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
750 result
= do_div(tsf
, interval_tm_unit
);
751 priv
->rxon_timing
.beacon_init_val
=
752 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
754 IWL_DEBUG_ASSOC(priv
,
755 "beacon interval %d beacon timer %d beacon tim %d\n",
756 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
757 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
758 le16_to_cpu(priv
->rxon_timing
.atim_window
));
761 static int iwl3945_set_mode(struct iwl_priv
*priv
, int mode
)
763 if (mode
== NL80211_IFTYPE_ADHOC
) {
764 const struct iwl_channel_info
*ch_info
;
766 ch_info
= iwl_get_channel_info(priv
,
768 le16_to_cpu(priv
->staging_rxon
.channel
));
770 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
771 IWL_ERR(priv
, "channel %d not IBSS channel\n",
772 le16_to_cpu(priv
->staging_rxon
.channel
));
777 iwl_connection_init_rx_config(priv
, mode
);
779 iwl3945_clear_stations_table(priv
);
781 /* don't commit rxon if rf-kill is on*/
782 if (!iwl_is_ready_rf(priv
))
785 cancel_delayed_work(&priv
->scan_check
);
786 if (iwl_scan_cancel_timeout(priv
, 100)) {
787 IWL_WARN(priv
, "Aborted scan still in progress after 100ms\n");
788 IWL_DEBUG_MAC80211(priv
, "leaving - scan abort failed.\n");
792 iwl3945_commit_rxon(priv
);
797 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv
*priv
,
798 struct ieee80211_tx_info
*info
,
800 struct sk_buff
*skb_frag
,
803 struct iwl3945_tx_cmd
*tx
= (struct iwl3945_tx_cmd
*)cmd
->cmd
.payload
;
804 struct iwl3945_hw_key
*keyinfo
=
805 &priv
->stations_39
[sta_id
].keyinfo
;
807 switch (keyinfo
->alg
) {
809 tx
->sec_ctl
= TX_CMD_SEC_CCM
;
810 memcpy(tx
->key
, keyinfo
->key
, keyinfo
->keylen
);
811 IWL_DEBUG_TX(priv
, "tx_cmd with AES hwcrypto\n");
818 tx
->sec_ctl
= TX_CMD_SEC_WEP
|
819 (info
->control
.hw_key
->hw_key_idx
& TX_CMD_SEC_MSK
) << TX_CMD_SEC_SHIFT
;
821 if (keyinfo
->keylen
== 13)
822 tx
->sec_ctl
|= TX_CMD_SEC_KEY128
;
824 memcpy(&tx
->key
[3], keyinfo
->key
, keyinfo
->keylen
);
826 IWL_DEBUG_TX(priv
, "Configuring packet for WEP encryption "
827 "with key %d\n", info
->control
.hw_key
->hw_key_idx
);
831 IWL_ERR(priv
, "Unknown encode alg %d\n", keyinfo
->alg
);
837 * handle build REPLY_TX command notification.
839 static void iwl3945_build_tx_cmd_basic(struct iwl_priv
*priv
,
841 struct ieee80211_tx_info
*info
,
842 struct ieee80211_hdr
*hdr
, u8 std_id
)
844 struct iwl3945_tx_cmd
*tx
= (struct iwl3945_tx_cmd
*)cmd
->cmd
.payload
;
845 __le32 tx_flags
= tx
->tx_flags
;
846 __le16 fc
= hdr
->frame_control
;
847 u8 rc_flags
= info
->control
.rates
[0].flags
;
849 tx
->stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
850 if (!(info
->flags
& IEEE80211_TX_CTL_NO_ACK
)) {
851 tx_flags
|= TX_CMD_FLG_ACK_MSK
;
852 if (ieee80211_is_mgmt(fc
))
853 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
854 if (ieee80211_is_probe_resp(fc
) &&
855 !(le16_to_cpu(hdr
->seq_ctrl
) & 0xf))
856 tx_flags
|= TX_CMD_FLG_TSF_MSK
;
858 tx_flags
&= (~TX_CMD_FLG_ACK_MSK
);
859 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
863 if (ieee80211_has_morefrags(fc
))
864 tx_flags
|= TX_CMD_FLG_MORE_FRAG_MSK
;
866 if (ieee80211_is_data_qos(fc
)) {
867 u8
*qc
= ieee80211_get_qos_ctl(hdr
);
868 tx
->tid_tspec
= qc
[0] & 0xf;
869 tx_flags
&= ~TX_CMD_FLG_SEQ_CTL_MSK
;
871 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
874 if (rc_flags
& IEEE80211_TX_RC_USE_RTS_CTS
) {
875 tx_flags
|= TX_CMD_FLG_RTS_MSK
;
876 tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
877 } else if (rc_flags
& IEEE80211_TX_RC_USE_CTS_PROTECT
) {
878 tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
879 tx_flags
|= TX_CMD_FLG_CTS_MSK
;
882 if ((tx_flags
& TX_CMD_FLG_RTS_MSK
) || (tx_flags
& TX_CMD_FLG_CTS_MSK
))
883 tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
885 tx_flags
&= ~(TX_CMD_FLG_ANT_SEL_MSK
);
886 if (ieee80211_is_mgmt(fc
)) {
887 if (ieee80211_is_assoc_req(fc
) || ieee80211_is_reassoc_req(fc
))
888 tx
->timeout
.pm_frame_timeout
= cpu_to_le16(3);
890 tx
->timeout
.pm_frame_timeout
= cpu_to_le16(2);
892 tx
->timeout
.pm_frame_timeout
= 0;
893 #ifdef CONFIG_IWLWIFI_LEDS
894 priv
->rxtxpackets
+= le16_to_cpu(cmd
->cmd
.tx
.len
);
899 tx
->tx_flags
= tx_flags
;
900 tx
->next_frame_len
= 0;
904 * iwl3945_get_sta_id - Find station's index within station table
906 static int iwl3945_get_sta_id(struct iwl_priv
*priv
, struct ieee80211_hdr
*hdr
)
909 u16 fc
= le16_to_cpu(hdr
->frame_control
);
911 /* If this frame is broadcast or management, use broadcast station id */
912 if (((fc
& IEEE80211_FCTL_FTYPE
) != IEEE80211_FTYPE_DATA
) ||
913 is_multicast_ether_addr(hdr
->addr1
))
914 return priv
->hw_params
.bcast_sta_id
;
916 switch (priv
->iw_mode
) {
918 /* If we are a client station in a BSS network, use the special
919 * AP station entry (that's the only station we communicate with) */
920 case NL80211_IFTYPE_STATION
:
923 /* If we are an AP, then find the station, or use BCAST */
924 case NL80211_IFTYPE_AP
:
925 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
926 if (sta_id
!= IWL_INVALID_STATION
)
928 return priv
->hw_params
.bcast_sta_id
;
930 /* If this frame is going out to an IBSS network, find the station,
931 * or create a new station table entry */
932 case NL80211_IFTYPE_ADHOC
: {
933 /* Create new station table entry */
934 sta_id
= iwl3945_hw_find_station(priv
, hdr
->addr1
);
935 if (sta_id
!= IWL_INVALID_STATION
)
938 sta_id
= iwl3945_add_station(priv
, hdr
->addr1
, 0, CMD_ASYNC
);
940 if (sta_id
!= IWL_INVALID_STATION
)
943 IWL_DEBUG_DROP(priv
, "Station %pM not in station map. "
944 "Defaulting to broadcast...\n",
946 iwl_print_hex_dump(priv
, IWL_DL_DROP
, (u8
*) hdr
, sizeof(*hdr
));
947 return priv
->hw_params
.bcast_sta_id
;
949 /* If we are in monitor mode, use BCAST. This is required for
950 * packet injection. */
951 case NL80211_IFTYPE_MONITOR
:
952 return priv
->hw_params
.bcast_sta_id
;
955 IWL_WARN(priv
, "Unknown mode of operation: %d\n",
957 return priv
->hw_params
.bcast_sta_id
;
962 * start REPLY_TX command process
964 static int iwl3945_tx_skb(struct iwl_priv
*priv
, struct sk_buff
*skb
)
966 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
967 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
968 struct iwl3945_tx_cmd
*tx
;
969 struct iwl_tx_queue
*txq
= NULL
;
970 struct iwl_queue
*q
= NULL
;
971 struct iwl_cmd
*out_cmd
= NULL
;
972 dma_addr_t phys_addr
;
973 dma_addr_t txcmd_phys
;
974 int txq_id
= skb_get_queue_mapping(skb
);
975 u16 len
, idx
, len_org
, hdr_len
;
982 u8 wait_write_ptr
= 0;
987 spin_lock_irqsave(&priv
->lock
, flags
);
988 if (iwl_is_rfkill(priv
)) {
989 IWL_DEBUG_DROP(priv
, "Dropping - RF KILL\n");
993 if ((ieee80211_get_tx_rate(priv
->hw
, info
)->hw_value
& 0xFF) == IWL_INVALID_RATE
) {
994 IWL_ERR(priv
, "ERROR: No TX rate available.\n");
998 unicast
= !is_multicast_ether_addr(hdr
->addr1
);
1001 fc
= hdr
->frame_control
;
1003 #ifdef CONFIG_IWLWIFI_DEBUG
1004 if (ieee80211_is_auth(fc
))
1005 IWL_DEBUG_TX(priv
, "Sending AUTH frame\n");
1006 else if (ieee80211_is_assoc_req(fc
))
1007 IWL_DEBUG_TX(priv
, "Sending ASSOC frame\n");
1008 else if (ieee80211_is_reassoc_req(fc
))
1009 IWL_DEBUG_TX(priv
, "Sending REASSOC frame\n");
1012 /* drop all data frame if we are not associated */
1013 if (ieee80211_is_data(fc
) &&
1014 (priv
->iw_mode
!= NL80211_IFTYPE_MONITOR
) && /* packet injection */
1015 (!iwl_is_associated(priv
) ||
1016 ((priv
->iw_mode
== NL80211_IFTYPE_STATION
) && !priv
->assoc_id
))) {
1017 IWL_DEBUG_DROP(priv
, "Dropping - !iwl_is_associated\n");
1021 spin_unlock_irqrestore(&priv
->lock
, flags
);
1023 hdr_len
= ieee80211_hdrlen(fc
);
1025 /* Find (or create) index into station table for destination station */
1026 sta_id
= iwl3945_get_sta_id(priv
, hdr
);
1027 if (sta_id
== IWL_INVALID_STATION
) {
1028 IWL_DEBUG_DROP(priv
, "Dropping - INVALID STATION: %pM\n",
1033 IWL_DEBUG_RATE(priv
, "station Id %d\n", sta_id
);
1035 if (ieee80211_is_data_qos(fc
)) {
1036 qc
= ieee80211_get_qos_ctl(hdr
);
1037 tid
= qc
[0] & IEEE80211_QOS_CTL_TID_MASK
;
1038 seq_number
= priv
->stations_39
[sta_id
].tid
[tid
].seq_number
&
1040 hdr
->seq_ctrl
= cpu_to_le16(seq_number
) |
1042 cpu_to_le16(IEEE80211_SCTL_FRAG
));
1046 /* Descriptor for chosen Tx queue */
1047 txq
= &priv
->txq
[txq_id
];
1050 spin_lock_irqsave(&priv
->lock
, flags
);
1052 idx
= get_cmd_index(q
, q
->write_ptr
, 0);
1054 /* Set up driver data for this TFD */
1055 memset(&(txq
->txb
[q
->write_ptr
]), 0, sizeof(struct iwl_tx_info
));
1056 txq
->txb
[q
->write_ptr
].skb
[0] = skb
;
1058 /* Init first empty entry in queue's array of Tx/cmd buffers */
1059 out_cmd
= txq
->cmd
[idx
];
1060 tx
= (struct iwl3945_tx_cmd
*)out_cmd
->cmd
.payload
;
1061 memset(&out_cmd
->hdr
, 0, sizeof(out_cmd
->hdr
));
1062 memset(tx
, 0, sizeof(*tx
));
1065 * Set up the Tx-command (not MAC!) header.
1066 * Store the chosen Tx queue and TFD index within the sequence field;
1067 * after Tx, uCode's Tx response will return this value so driver can
1068 * locate the frame within the tx queue and do post-tx processing.
1070 out_cmd
->hdr
.cmd
= REPLY_TX
;
1071 out_cmd
->hdr
.sequence
= cpu_to_le16((u16
)(QUEUE_TO_SEQ(txq_id
) |
1072 INDEX_TO_SEQ(q
->write_ptr
)));
1074 /* Copy MAC header from skb into command buffer */
1075 memcpy(tx
->hdr
, hdr
, hdr_len
);
1078 * Use the first empty entry in this queue's command buffer array
1079 * to contain the Tx command and MAC header concatenated together
1080 * (payload data will be in another buffer).
1081 * Size of this varies, due to varying MAC header length.
1082 * If end is not dword aligned, we'll have 2 extra bytes at the end
1083 * of the MAC header (device reads on dword boundaries).
1084 * We'll tell device about this padding later.
1086 len
= sizeof(struct iwl3945_tx_cmd
) +
1087 sizeof(struct iwl_cmd_header
) + hdr_len
;
1090 len
= (len
+ 3) & ~3;
1097 /* Physical address of this Tx command's header (not MAC header!),
1098 * within command buffer array. */
1099 txcmd_phys
= pci_map_single(priv
->pci_dev
,
1100 out_cmd
, sizeof(struct iwl_cmd
),
1102 pci_unmap_addr_set(&out_cmd
->meta
, mapping
, txcmd_phys
);
1103 pci_unmap_len_set(&out_cmd
->meta
, len
, sizeof(struct iwl_cmd
));
1104 /* Add buffer containing Tx command and MAC(!) header to TFD's
1106 txcmd_phys
+= offsetof(struct iwl_cmd
, hdr
);
1108 /* Add buffer containing Tx command and MAC(!) header to TFD's
1110 priv
->cfg
->ops
->lib
->txq_attach_buf_to_tfd(priv
, txq
,
1111 txcmd_phys
, len
, 1, 0);
1113 if (info
->control
.hw_key
)
1114 iwl3945_build_tx_cmd_hwcrypto(priv
, info
, out_cmd
, skb
, sta_id
);
1116 /* Set up TFD's 2nd entry to point directly to remainder of skb,
1117 * if any (802.11 null frames have no payload). */
1118 len
= skb
->len
- hdr_len
;
1120 phys_addr
= pci_map_single(priv
->pci_dev
, skb
->data
+ hdr_len
,
1121 len
, PCI_DMA_TODEVICE
);
1122 priv
->cfg
->ops
->lib
->txq_attach_buf_to_tfd(priv
, txq
,
1127 /* Total # bytes to be transmitted */
1128 len
= (u16
)skb
->len
;
1129 tx
->len
= cpu_to_le16(len
);
1131 /* TODO need this for burst mode later on */
1132 iwl3945_build_tx_cmd_basic(priv
, out_cmd
, info
, hdr
, sta_id
);
1134 /* set is_hcca to 0; it probably will never be implemented */
1135 iwl3945_hw_build_tx_cmd_rate(priv
, out_cmd
, info
, hdr
, sta_id
, 0);
1137 tx
->tx_flags
&= ~TX_CMD_FLG_ANT_A_MSK
;
1138 tx
->tx_flags
&= ~TX_CMD_FLG_ANT_B_MSK
;
1140 if (!ieee80211_has_morefrags(hdr
->frame_control
)) {
1141 txq
->need_update
= 1;
1143 priv
->stations_39
[sta_id
].tid
[tid
].seq_number
= seq_number
;
1146 txq
->need_update
= 0;
1149 iwl_print_hex_dump(priv
, IWL_DL_TX
, tx
, sizeof(*tx
));
1151 iwl_print_hex_dump(priv
, IWL_DL_TX
, (u8
*)tx
->hdr
,
1152 ieee80211_hdrlen(fc
));
1154 /* Tell device the write index *just past* this latest filled TFD */
1155 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
1156 rc
= iwl_txq_update_write_ptr(priv
, txq
);
1157 spin_unlock_irqrestore(&priv
->lock
, flags
);
1162 if ((iwl_queue_space(q
) < q
->high_mark
)
1163 && priv
->mac80211_registered
) {
1164 if (wait_write_ptr
) {
1165 spin_lock_irqsave(&priv
->lock
, flags
);
1166 txq
->need_update
= 1;
1167 iwl_txq_update_write_ptr(priv
, txq
);
1168 spin_unlock_irqrestore(&priv
->lock
, flags
);
1171 ieee80211_stop_queue(priv
->hw
, skb_get_queue_mapping(skb
));
1177 spin_unlock_irqrestore(&priv
->lock
, flags
);
1182 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
1184 #include "iwl-spectrum.h"
1186 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
1187 #define BEACON_TIME_MASK_HIGH 0xFF000000
1188 #define TIME_UNIT 1024
1191 * extended beacon time format
1192 * time in usec will be changed into a 32-bit value in 8:24 format
1193 * the high 1 byte is the beacon counts
1194 * the lower 3 bytes is the time in usec within one beacon interval
1197 static u32
iwl3945_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
1201 u32 interval
= beacon_interval
* 1024;
1203 if (!interval
|| !usec
)
1206 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
1207 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
1209 return (quot
<< 24) + rem
;
1212 /* base is usually what we get from ucode with each received frame,
1213 * the same as HW timer counter counting down
1216 static __le32
iwl3945_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
1218 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
1219 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
1220 u32 interval
= beacon_interval
* TIME_UNIT
;
1221 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
1222 (addon
& BEACON_TIME_MASK_HIGH
);
1224 if (base_low
> addon_low
)
1225 res
+= base_low
- addon_low
;
1226 else if (base_low
< addon_low
) {
1227 res
+= interval
+ base_low
- addon_low
;
1232 return cpu_to_le32(res
);
1235 static int iwl3945_get_measurement(struct iwl_priv
*priv
,
1236 struct ieee80211_measurement_params
*params
,
1239 struct iwl_spectrum_cmd spectrum
;
1240 struct iwl_rx_packet
*res
;
1241 struct iwl_host_cmd cmd
= {
1242 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
1243 .data
= (void *)&spectrum
,
1244 .meta
.flags
= CMD_WANT_SKB
,
1246 u32 add_time
= le64_to_cpu(params
->start_time
);
1248 int spectrum_resp_status
;
1249 int duration
= le16_to_cpu(params
->duration
);
1251 if (iwl_is_associated(priv
))
1253 iwl3945_usecs_to_beacons(
1254 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
1255 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
1257 memset(&spectrum
, 0, sizeof(spectrum
));
1259 spectrum
.channel_count
= cpu_to_le16(1);
1261 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
1262 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
1263 cmd
.len
= sizeof(spectrum
);
1264 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
1266 if (iwl_is_associated(priv
))
1267 spectrum
.start_time
=
1268 iwl3945_add_beacon_time(priv
->last_beacon_time
,
1270 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
1272 spectrum
.start_time
= 0;
1274 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
1275 spectrum
.channels
[0].channel
= params
->channel
;
1276 spectrum
.channels
[0].type
= type
;
1277 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
1278 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
1279 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
1281 rc
= iwl_send_cmd_sync(priv
, &cmd
);
1285 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1286 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1287 IWL_ERR(priv
, "Bad return from REPLY_RX_ON_ASSOC command\n");
1291 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
1292 switch (spectrum_resp_status
) {
1293 case 0: /* Command will be handled */
1294 if (res
->u
.spectrum
.id
!= 0xff) {
1295 IWL_DEBUG_INFO(priv
, "Replaced existing measurement: %d\n",
1296 res
->u
.spectrum
.id
);
1297 priv
->measurement_status
&= ~MEASUREMENT_READY
;
1299 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
1303 case 1: /* Command will not be handled */
1308 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1314 static void iwl3945_rx_reply_alive(struct iwl_priv
*priv
,
1315 struct iwl_rx_mem_buffer
*rxb
)
1317 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
1318 struct iwl_alive_resp
*palive
;
1319 struct delayed_work
*pwork
;
1321 palive
= &pkt
->u
.alive_frame
;
1323 IWL_DEBUG_INFO(priv
, "Alive ucode status 0x%08X revision "
1325 palive
->is_valid
, palive
->ver_type
,
1326 palive
->ver_subtype
);
1328 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
1329 IWL_DEBUG_INFO(priv
, "Initialization Alive received.\n");
1330 memcpy(&priv
->card_alive_init
, &pkt
->u
.alive_frame
,
1331 sizeof(struct iwl_alive_resp
));
1332 pwork
= &priv
->init_alive_start
;
1334 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
1335 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
1336 sizeof(struct iwl_alive_resp
));
1337 pwork
= &priv
->alive_start
;
1338 iwl3945_disable_events(priv
);
1341 /* We delay the ALIVE response by 5ms to
1342 * give the HW RF Kill time to activate... */
1343 if (palive
->is_valid
== UCODE_VALID_OK
)
1344 queue_delayed_work(priv
->workqueue
, pwork
,
1345 msecs_to_jiffies(5));
1347 IWL_WARN(priv
, "uCode did not respond OK.\n");
1350 static void iwl3945_rx_reply_add_sta(struct iwl_priv
*priv
,
1351 struct iwl_rx_mem_buffer
*rxb
)
1353 #ifdef CONFIG_IWLWIFI_DEBUG
1354 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
1357 IWL_DEBUG_RX(priv
, "Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
1361 static void iwl3945_bg_beacon_update(struct work_struct
*work
)
1363 struct iwl_priv
*priv
=
1364 container_of(work
, struct iwl_priv
, beacon_update
);
1365 struct sk_buff
*beacon
;
1367 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
1368 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
);
1371 IWL_ERR(priv
, "update beacon failed\n");
1375 mutex_lock(&priv
->mutex
);
1376 /* new beacon skb is allocated every time; dispose previous.*/
1377 if (priv
->ibss_beacon
)
1378 dev_kfree_skb(priv
->ibss_beacon
);
1380 priv
->ibss_beacon
= beacon
;
1381 mutex_unlock(&priv
->mutex
);
1383 iwl3945_send_beacon_cmd(priv
);
1386 static void iwl3945_rx_beacon_notif(struct iwl_priv
*priv
,
1387 struct iwl_rx_mem_buffer
*rxb
)
1389 #ifdef CONFIG_IWLWIFI_DEBUG
1390 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
1391 struct iwl3945_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
1392 u8 rate
= beacon
->beacon_notify_hdr
.rate
;
1394 IWL_DEBUG_RX(priv
, "beacon status %x retries %d iss %d "
1395 "tsf %d %d rate %d\n",
1396 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
1397 beacon
->beacon_notify_hdr
.failure_frame
,
1398 le32_to_cpu(beacon
->ibss_mgr_status
),
1399 le32_to_cpu(beacon
->high_tsf
),
1400 le32_to_cpu(beacon
->low_tsf
), rate
);
1403 if ((priv
->iw_mode
== NL80211_IFTYPE_AP
) &&
1404 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
1405 queue_work(priv
->workqueue
, &priv
->beacon_update
);
1408 /* Handle notification from uCode that card's power state is changing
1409 * due to software, hardware, or critical temperature RFKILL */
1410 static void iwl3945_rx_card_state_notif(struct iwl_priv
*priv
,
1411 struct iwl_rx_mem_buffer
*rxb
)
1413 struct iwl_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
1414 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
1415 unsigned long status
= priv
->status
;
1417 IWL_DEBUG_RF_KILL(priv
, "Card state received: HW:%s SW:%s\n",
1418 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
1419 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
1421 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
1422 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
1424 if (flags
& HW_CARD_DISABLED
)
1425 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1427 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1430 if (flags
& SW_CARD_DISABLED
)
1431 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
1433 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
1435 iwl_scan_cancel(priv
);
1437 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
1438 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
1439 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
1440 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
1441 queue_work(priv
->workqueue
, &priv
->rf_kill
);
1443 wake_up_interruptible(&priv
->wait_command_queue
);
1447 * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
1449 * Setup the RX handlers for each of the reply types sent from the uCode
1452 * This function chains into the hardware specific files for them to setup
1453 * any hardware specific handlers as well.
1455 static void iwl3945_setup_rx_handlers(struct iwl_priv
*priv
)
1457 priv
->rx_handlers
[REPLY_ALIVE
] = iwl3945_rx_reply_alive
;
1458 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl3945_rx_reply_add_sta
;
1459 priv
->rx_handlers
[REPLY_ERROR
] = iwl_rx_reply_error
;
1460 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl_rx_csa
;
1461 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl_rx_pm_sleep_notif
;
1462 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
1463 iwl_rx_pm_debug_statistics_notif
;
1464 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl3945_rx_beacon_notif
;
1467 * The same handler is used for both the REPLY to a discrete
1468 * statistics request from the host as well as for the periodic
1469 * statistics notifications (after received beacons) from the uCode.
1471 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl3945_hw_rx_statistics
;
1472 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl3945_hw_rx_statistics
;
1474 iwl_setup_spectrum_handlers(priv
);
1475 iwl_setup_rx_scan_handlers(priv
);
1476 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl3945_rx_card_state_notif
;
1478 /* Set up hardware specific Rx handlers */
1479 iwl3945_hw_rx_handler_setup(priv
);
1482 /************************** RX-FUNCTIONS ****************************/
1484 * Rx theory of operation
1486 * The host allocates 32 DMA target addresses and passes the host address
1487 * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
1491 * The host/firmware share two index registers for managing the Rx buffers.
1493 * The READ index maps to the first position that the firmware may be writing
1494 * to -- the driver can read up to (but not including) this position and get
1496 * The READ index is managed by the firmware once the card is enabled.
1498 * The WRITE index maps to the last position the driver has read from -- the
1499 * position preceding WRITE is the last slot the firmware can place a packet.
1501 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
1504 * During initialization, the host sets up the READ queue position to the first
1505 * INDEX position, and WRITE to the last (READ - 1 wrapped)
1507 * When the firmware places a packet in a buffer, it will advance the READ index
1508 * and fire the RX interrupt. The driver can then query the READ index and
1509 * process as many packets as possible, moving the WRITE index forward as it
1510 * resets the Rx queue buffers with new memory.
1512 * The management in the driver is as follows:
1513 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
1514 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
1515 * to replenish the iwl->rxq->rx_free.
1516 * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
1517 * iwl->rxq is replenished and the READ INDEX is updated (updating the
1518 * 'processed' and 'read' driver indexes as well)
1519 * + A received packet is processed and handed to the kernel network stack,
1520 * detached from the iwl->rxq. The driver 'processed' index is updated.
1521 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
1522 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
1523 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
1524 * were enough free buffers and RX_STALLED is set it is cleared.
1529 * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
1530 * iwl3945_rx_queue_restock
1531 * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
1532 * queue, updates firmware pointers, and updates
1533 * the WRITE index. If insufficient rx_free buffers
1534 * are available, schedules iwl3945_rx_replenish
1536 * -- enable interrupts --
1537 * ISR - iwl3945_rx() Detach iwl_rx_mem_buffers from pool up to the
1538 * READ INDEX, detaching the SKB from the pool.
1539 * Moves the packet buffer from queue to rx_used.
1540 * Calls iwl3945_rx_queue_restock to refill any empty
1547 * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
1549 static inline __le32
iwl3945_dma_addr2rbd_ptr(struct iwl_priv
*priv
,
1550 dma_addr_t dma_addr
)
1552 return cpu_to_le32((u32
)dma_addr
);
1556 * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
1558 * If there are slots in the RX queue that need to be restocked,
1559 * and we have free pre-allocated buffers, fill the ranks as much
1560 * as we can, pulling from rx_free.
1562 * This moves the 'write' index forward to catch up with 'processed', and
1563 * also updates the memory address in the firmware to reference the new
1566 static int iwl3945_rx_queue_restock(struct iwl_priv
*priv
)
1568 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
1569 struct list_head
*element
;
1570 struct iwl_rx_mem_buffer
*rxb
;
1571 unsigned long flags
;
1574 spin_lock_irqsave(&rxq
->lock
, flags
);
1575 write
= rxq
->write
& ~0x7;
1576 while ((iwl_rx_queue_space(rxq
) > 0) && (rxq
->free_count
)) {
1577 /* Get next free Rx buffer, remove from free list */
1578 element
= rxq
->rx_free
.next
;
1579 rxb
= list_entry(element
, struct iwl_rx_mem_buffer
, list
);
1582 /* Point to Rx buffer via next RBD in circular buffer */
1583 rxq
->bd
[rxq
->write
] = iwl3945_dma_addr2rbd_ptr(priv
, rxb
->real_dma_addr
);
1584 rxq
->queue
[rxq
->write
] = rxb
;
1585 rxq
->write
= (rxq
->write
+ 1) & RX_QUEUE_MASK
;
1588 spin_unlock_irqrestore(&rxq
->lock
, flags
);
1589 /* If the pre-allocated buffer pool is dropping low, schedule to
1591 if (rxq
->free_count
<= RX_LOW_WATERMARK
)
1592 queue_work(priv
->workqueue
, &priv
->rx_replenish
);
1595 /* If we've added more space for the firmware to place data, tell it.
1596 * Increment device's write pointer in multiples of 8. */
1597 if ((write
!= (rxq
->write
& ~0x7))
1598 || (abs(rxq
->write
- rxq
->read
) > 7)) {
1599 spin_lock_irqsave(&rxq
->lock
, flags
);
1600 rxq
->need_update
= 1;
1601 spin_unlock_irqrestore(&rxq
->lock
, flags
);
1602 rc
= iwl_rx_queue_update_write_ptr(priv
, rxq
);
1611 * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
1613 * When moving to rx_free an SKB is allocated for the slot.
1615 * Also restock the Rx queue via iwl3945_rx_queue_restock.
1616 * This is called as a scheduled work item (except for during initialization)
1618 static void iwl3945_rx_allocate(struct iwl_priv
*priv
)
1620 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
1621 struct list_head
*element
;
1622 struct iwl_rx_mem_buffer
*rxb
;
1623 unsigned long flags
;
1624 spin_lock_irqsave(&rxq
->lock
, flags
);
1625 while (!list_empty(&rxq
->rx_used
)) {
1626 element
= rxq
->rx_used
.next
;
1627 rxb
= list_entry(element
, struct iwl_rx_mem_buffer
, list
);
1629 /* Alloc a new receive buffer */
1631 alloc_skb(priv
->hw_params
.rx_buf_size
,
1632 __GFP_NOWARN
| GFP_ATOMIC
);
1634 if (net_ratelimit())
1635 IWL_CRIT(priv
, ": Can not allocate SKB buffers\n");
1636 /* We don't reschedule replenish work here -- we will
1637 * call the restock method and if it still needs
1638 * more buffers it will schedule replenish */
1642 /* If radiotap head is required, reserve some headroom here.
1643 * The physical head count is a variable rx_stats->phy_count.
1644 * We reserve 4 bytes here. Plus these extra bytes, the
1645 * headroom of the physical head should be enough for the
1646 * radiotap head that iwl3945 supported. See iwl3945_rt.
1648 skb_reserve(rxb
->skb
, 4);
1650 priv
->alloc_rxb_skb
++;
1653 /* Get physical address of RB/SKB */
1654 rxb
->real_dma_addr
= pci_map_single(priv
->pci_dev
,
1656 priv
->hw_params
.rx_buf_size
,
1657 PCI_DMA_FROMDEVICE
);
1658 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
1661 spin_unlock_irqrestore(&rxq
->lock
, flags
);
1665 * this should be called while priv->lock is locked
1667 static void __iwl3945_rx_replenish(void *data
)
1669 struct iwl_priv
*priv
= data
;
1671 iwl3945_rx_allocate(priv
);
1672 iwl3945_rx_queue_restock(priv
);
1676 void iwl3945_rx_replenish(void *data
)
1678 struct iwl_priv
*priv
= data
;
1679 unsigned long flags
;
1681 iwl3945_rx_allocate(priv
);
1683 spin_lock_irqsave(&priv
->lock
, flags
);
1684 iwl3945_rx_queue_restock(priv
);
1685 spin_unlock_irqrestore(&priv
->lock
, flags
);
1688 /* Convert linear signal-to-noise ratio into dB */
1689 static u8 ratio2dB
[100] = {
1690 /* 0 1 2 3 4 5 6 7 8 9 */
1691 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
1692 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
1693 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
1694 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
1695 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
1696 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
1697 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
1698 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
1699 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
1700 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
1703 /* Calculates a relative dB value from a ratio of linear
1704 * (i.e. not dB) signal levels.
1705 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
1706 int iwl3945_calc_db_from_ratio(int sig_ratio
)
1708 /* 1000:1 or higher just report as 60 dB */
1709 if (sig_ratio
>= 1000)
1712 /* 100:1 or higher, divide by 10 and use table,
1713 * add 20 dB to make up for divide by 10 */
1714 if (sig_ratio
>= 100)
1715 return 20 + (int)ratio2dB
[sig_ratio
/10];
1717 /* We shouldn't see this */
1721 /* Use table for ratios 1:1 - 99:1 */
1722 return (int)ratio2dB
[sig_ratio
];
1725 #define PERFECT_RSSI (-20) /* dBm */
1726 #define WORST_RSSI (-95) /* dBm */
1727 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
1729 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
1730 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
1731 * about formulas used below. */
1732 int iwl3945_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
1735 int degradation
= PERFECT_RSSI
- rssi_dbm
;
1737 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
1738 * as indicator; formula is (signal dbm - noise dbm).
1739 * SNR at or above 40 is a great signal (100%).
1740 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
1741 * Weakest usable signal is usually 10 - 15 dB SNR. */
1743 if (rssi_dbm
- noise_dbm
>= 40)
1745 else if (rssi_dbm
< noise_dbm
)
1747 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
1749 /* Else use just the signal level.
1750 * This formula is a least squares fit of data points collected and
1751 * compared with a reference system that had a percentage (%) display
1752 * for signal quality. */
1754 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
1755 (15 * RSSI_RANGE
+ 62 * degradation
)) /
1756 (RSSI_RANGE
* RSSI_RANGE
);
1760 else if (sig_qual
< 1)
1767 * iwl3945_rx_handle - Main entry function for receiving responses from uCode
1769 * Uses the priv->rx_handlers callback function array to invoke
1770 * the appropriate handlers, including command responses,
1771 * frame-received notifications, and other notifications.
1773 static void iwl3945_rx_handle(struct iwl_priv
*priv
)
1775 struct iwl_rx_mem_buffer
*rxb
;
1776 struct iwl_rx_packet
*pkt
;
1777 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
1780 unsigned long flags
;
1784 /* uCode's read index (stored in shared DRAM) indicates the last Rx
1785 * buffer that the driver may process (last buffer filled by ucode). */
1786 r
= le16_to_cpu(rxq
->rb_stts
->closed_rb_num
) & 0x0FFF;
1789 if (iwl_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
1791 /* Rx interrupt, but nothing sent from uCode */
1793 IWL_DEBUG(priv
, IWL_DL_RX
| IWL_DL_ISR
, "r = %d, i = %d\n", r
, i
);
1796 rxb
= rxq
->queue
[i
];
1798 /* If an RXB doesn't have a Rx queue slot associated with it,
1799 * then a bug has been introduced in the queue refilling
1800 * routines -- catch it here */
1801 BUG_ON(rxb
== NULL
);
1803 rxq
->queue
[i
] = NULL
;
1805 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->real_dma_addr
,
1806 priv
->hw_params
.rx_buf_size
,
1807 PCI_DMA_FROMDEVICE
);
1808 pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1810 /* Reclaim a command buffer only if this packet is a response
1811 * to a (driver-originated) command.
1812 * If the packet (e.g. Rx frame) originated from uCode,
1813 * there is no command buffer to reclaim.
1814 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
1815 * but apparently a few don't get set; catch them here. */
1816 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
1817 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
1818 (pkt
->hdr
.cmd
!= REPLY_TX
);
1820 /* Based on type of command response or notification,
1821 * handle those that need handling via function in
1822 * rx_handlers table. See iwl3945_setup_rx_handlers() */
1823 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
1824 IWL_DEBUG(priv
, IWL_DL_HCMD
| IWL_DL_RX
| IWL_DL_ISR
,
1825 "r = %d, i = %d, %s, 0x%02x\n", r
, i
,
1826 get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
1827 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
1829 /* No handling needed */
1830 IWL_DEBUG(priv
, IWL_DL_HCMD
| IWL_DL_RX
| IWL_DL_ISR
,
1831 "r %d i %d No handler needed for %s, 0x%02x\n",
1832 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
1837 /* Invoke any callbacks, transfer the skb to caller, and
1838 * fire off the (possibly) blocking iwl_send_cmd()
1839 * as we reclaim the driver command queue */
1840 if (rxb
&& rxb
->skb
)
1841 iwl_tx_cmd_complete(priv
, rxb
);
1843 IWL_WARN(priv
, "Claim null rxb?\n");
1846 /* For now we just don't re-use anything. We can tweak this
1847 * later to try and re-use notification packets and SKBs that
1848 * fail to Rx correctly */
1849 if (rxb
->skb
!= NULL
) {
1850 priv
->alloc_rxb_skb
--;
1851 dev_kfree_skb_any(rxb
->skb
);
1855 pci_unmap_single(priv
->pci_dev
, rxb
->real_dma_addr
,
1856 priv
->hw_params
.rx_buf_size
,
1857 PCI_DMA_FROMDEVICE
);
1858 spin_lock_irqsave(&rxq
->lock
, flags
);
1859 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
1860 spin_unlock_irqrestore(&rxq
->lock
, flags
);
1861 i
= (i
+ 1) & RX_QUEUE_MASK
;
1862 /* If there are a lot of unused frames,
1863 * restock the Rx queue so ucode won't assert. */
1868 __iwl3945_rx_replenish(priv
);
1874 /* Backtrack one entry */
1876 iwl3945_rx_queue_restock(priv
);
1879 /* call this function to flush any scheduled tasklet */
1880 static inline void iwl_synchronize_irq(struct iwl_priv
*priv
)
1882 /* wait to make sure we flush pending tasklet*/
1883 synchronize_irq(priv
->pci_dev
->irq
);
1884 tasklet_kill(&priv
->irq_tasklet
);
1887 static const char *desc_lookup(int i
)
1895 return "BAD_CHECKSUM";
1897 return "NMI_INTERRUPT";
1901 return "FATAL_ERROR";
1907 #define ERROR_START_OFFSET (1 * sizeof(u32))
1908 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1910 static void iwl3945_dump_nic_error_log(struct iwl_priv
*priv
)
1913 u32 desc
, time
, count
, base
, data1
;
1914 u32 blink1
, blink2
, ilink1
, ilink2
;
1917 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
1919 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
1920 IWL_ERR(priv
, "Not valid error log pointer 0x%08X\n", base
);
1924 rc
= iwl_grab_nic_access(priv
);
1926 IWL_WARN(priv
, "Can not read from adapter at this time.\n");
1930 count
= iwl_read_targ_mem(priv
, base
);
1932 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
1933 IWL_ERR(priv
, "Start IWL Error Log Dump:\n");
1934 IWL_ERR(priv
, "Status: 0x%08lX, count: %d\n",
1935 priv
->status
, count
);
1938 IWL_ERR(priv
, "Desc Time asrtPC blink2 "
1939 "ilink1 nmiPC Line\n");
1940 for (i
= ERROR_START_OFFSET
;
1941 i
< (count
* ERROR_ELEM_SIZE
) + ERROR_START_OFFSET
;
1942 i
+= ERROR_ELEM_SIZE
) {
1943 desc
= iwl_read_targ_mem(priv
, base
+ i
);
1945 iwl_read_targ_mem(priv
, base
+ i
+ 1 * sizeof(u32
));
1947 iwl_read_targ_mem(priv
, base
+ i
+ 2 * sizeof(u32
));
1949 iwl_read_targ_mem(priv
, base
+ i
+ 3 * sizeof(u32
));
1951 iwl_read_targ_mem(priv
, base
+ i
+ 4 * sizeof(u32
));
1953 iwl_read_targ_mem(priv
, base
+ i
+ 5 * sizeof(u32
));
1955 iwl_read_targ_mem(priv
, base
+ i
+ 6 * sizeof(u32
));
1958 "%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
1959 desc_lookup(desc
), desc
, time
, blink1
, blink2
,
1960 ilink1
, ilink2
, data1
);
1963 iwl_release_nic_access(priv
);
1967 #define EVENT_START_OFFSET (6 * sizeof(u32))
1970 * iwl3945_print_event_log - Dump error event log to syslog
1972 * NOTE: Must be called with iwl_grab_nic_access() already obtained!
1974 static void iwl3945_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
1975 u32 num_events
, u32 mode
)
1978 u32 base
; /* SRAM byte address of event log header */
1979 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
1980 u32 ptr
; /* SRAM byte address of log data */
1981 u32 ev
, time
, data
; /* event log data */
1983 if (num_events
== 0)
1986 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
1989 event_size
= 2 * sizeof(u32
);
1991 event_size
= 3 * sizeof(u32
);
1993 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
1995 /* "time" is actually "data" for mode 0 (no timestamp).
1996 * place event id # at far right for easier visual parsing. */
1997 for (i
= 0; i
< num_events
; i
++) {
1998 ev
= iwl_read_targ_mem(priv
, ptr
);
2000 time
= iwl_read_targ_mem(priv
, ptr
);
2004 IWL_ERR(priv
, "0x%08x\t%04u\n", time
, ev
);
2006 data
= iwl_read_targ_mem(priv
, ptr
);
2008 IWL_ERR(priv
, "%010u\t0x%08x\t%04u\n", time
, data
, ev
);
2013 static void iwl3945_dump_nic_event_log(struct iwl_priv
*priv
)
2016 u32 base
; /* SRAM byte address of event log header */
2017 u32 capacity
; /* event log capacity in # entries */
2018 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
2019 u32 num_wraps
; /* # times uCode wrapped to top of log */
2020 u32 next_entry
; /* index of next entry to be written by uCode */
2021 u32 size
; /* # entries that we'll print */
2023 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
2024 if (!iwl3945_hw_valid_rtc_data_addr(base
)) {
2025 IWL_ERR(priv
, "Invalid event log pointer 0x%08X\n", base
);
2029 rc
= iwl_grab_nic_access(priv
);
2031 IWL_WARN(priv
, "Can not read from adapter at this time.\n");
2035 /* event log header */
2036 capacity
= iwl_read_targ_mem(priv
, base
);
2037 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
2038 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
2039 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
2041 size
= num_wraps
? capacity
: next_entry
;
2043 /* bail out if nothing in log */
2045 IWL_ERR(priv
, "Start IWL Event Log Dump: nothing in log\n");
2046 iwl_release_nic_access(priv
);
2050 IWL_ERR(priv
, "Start IWL Event Log Dump: display count %d, wraps %d\n",
2053 /* if uCode has wrapped back to top of log, start at the oldest entry,
2054 * i.e the next one that uCode would fill. */
2056 iwl3945_print_event_log(priv
, next_entry
,
2057 capacity
- next_entry
, mode
);
2059 /* (then/else) start at top of log */
2060 iwl3945_print_event_log(priv
, 0, next_entry
, mode
);
2062 iwl_release_nic_access(priv
);
2065 static void iwl3945_error_recovery(struct iwl_priv
*priv
)
2067 unsigned long flags
;
2069 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
2070 sizeof(priv
->staging_rxon
));
2071 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2072 iwl3945_commit_rxon(priv
);
2074 iwl3945_add_station(priv
, priv
->bssid
, 1, 0);
2076 spin_lock_irqsave(&priv
->lock
, flags
);
2077 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
2078 priv
->error_recovering
= 0;
2079 spin_unlock_irqrestore(&priv
->lock
, flags
);
2082 static void iwl3945_irq_tasklet(struct iwl_priv
*priv
)
2084 u32 inta
, handled
= 0;
2086 unsigned long flags
;
2087 #ifdef CONFIG_IWLWIFI_DEBUG
2091 spin_lock_irqsave(&priv
->lock
, flags
);
2093 /* Ack/clear/reset pending uCode interrupts.
2094 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
2095 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
2096 inta
= iwl_read32(priv
, CSR_INT
);
2097 iwl_write32(priv
, CSR_INT
, inta
);
2099 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
2100 * Any new interrupts that happen after this, either while we're
2101 * in this tasklet, or later, will show up in next ISR/tasklet. */
2102 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
2103 iwl_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
2105 #ifdef CONFIG_IWLWIFI_DEBUG
2106 if (priv
->debug_level
& IWL_DL_ISR
) {
2107 /* just for debug */
2108 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
2109 IWL_DEBUG_ISR(priv
, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
2110 inta
, inta_mask
, inta_fh
);
2114 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
2115 * atomic, make sure that inta covers all the interrupts that
2116 * we've discovered, even if FH interrupt came in just after
2117 * reading CSR_INT. */
2118 if (inta_fh
& CSR39_FH_INT_RX_MASK
)
2119 inta
|= CSR_INT_BIT_FH_RX
;
2120 if (inta_fh
& CSR39_FH_INT_TX_MASK
)
2121 inta
|= CSR_INT_BIT_FH_TX
;
2123 /* Now service all interrupt bits discovered above. */
2124 if (inta
& CSR_INT_BIT_HW_ERR
) {
2125 IWL_ERR(priv
, "Microcode HW error detected. Restarting.\n");
2127 /* Tell the device to stop sending interrupts */
2128 iwl_disable_interrupts(priv
);
2130 iwl_irq_handle_error(priv
);
2132 handled
|= CSR_INT_BIT_HW_ERR
;
2134 spin_unlock_irqrestore(&priv
->lock
, flags
);
2139 #ifdef CONFIG_IWLWIFI_DEBUG
2140 if (priv
->debug_level
& (IWL_DL_ISR
)) {
2141 /* NIC fires this, but we don't use it, redundant with WAKEUP */
2142 if (inta
& CSR_INT_BIT_SCD
)
2143 IWL_DEBUG_ISR(priv
, "Scheduler finished to transmit "
2144 "the frame/frames.\n");
2146 /* Alive notification via Rx interrupt will do the real work */
2147 if (inta
& CSR_INT_BIT_ALIVE
)
2148 IWL_DEBUG_ISR(priv
, "Alive interrupt\n");
2151 /* Safely ignore these bits for debug checks below */
2152 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
2154 /* Error detected by uCode */
2155 if (inta
& CSR_INT_BIT_SW_ERR
) {
2156 IWL_ERR(priv
, "Microcode SW error detected. "
2157 "Restarting 0x%X.\n", inta
);
2158 iwl_irq_handle_error(priv
);
2159 handled
|= CSR_INT_BIT_SW_ERR
;
2162 /* uCode wakes up after power-down sleep */
2163 if (inta
& CSR_INT_BIT_WAKEUP
) {
2164 IWL_DEBUG_ISR(priv
, "Wakeup interrupt\n");
2165 iwl_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
2166 iwl_txq_update_write_ptr(priv
, &priv
->txq
[0]);
2167 iwl_txq_update_write_ptr(priv
, &priv
->txq
[1]);
2168 iwl_txq_update_write_ptr(priv
, &priv
->txq
[2]);
2169 iwl_txq_update_write_ptr(priv
, &priv
->txq
[3]);
2170 iwl_txq_update_write_ptr(priv
, &priv
->txq
[4]);
2171 iwl_txq_update_write_ptr(priv
, &priv
->txq
[5]);
2173 handled
|= CSR_INT_BIT_WAKEUP
;
2176 /* All uCode command responses, including Tx command responses,
2177 * Rx "responses" (frame-received notification), and other
2178 * notifications from uCode come through here*/
2179 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
2180 iwl3945_rx_handle(priv
);
2181 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
2184 if (inta
& CSR_INT_BIT_FH_TX
) {
2185 IWL_DEBUG_ISR(priv
, "Tx interrupt\n");
2187 iwl_write32(priv
, CSR_FH_INT_STATUS
, (1 << 6));
2188 if (!iwl_grab_nic_access(priv
)) {
2189 iwl_write_direct32(priv
, FH39_TCSR_CREDIT
2190 (FH39_SRVC_CHNL
), 0x0);
2191 iwl_release_nic_access(priv
);
2193 handled
|= CSR_INT_BIT_FH_TX
;
2196 if (inta
& ~handled
)
2197 IWL_ERR(priv
, "Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
2199 if (inta
& ~CSR_INI_SET_MASK
) {
2200 IWL_WARN(priv
, "Disabled INTA bits 0x%08x were pending\n",
2201 inta
& ~CSR_INI_SET_MASK
);
2202 IWL_WARN(priv
, " with FH_INT = 0x%08x\n", inta_fh
);
2205 /* Re-enable all interrupts */
2206 /* only Re-enable if disabled by irq */
2207 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
2208 iwl_enable_interrupts(priv
);
2210 #ifdef CONFIG_IWLWIFI_DEBUG
2211 if (priv
->debug_level
& (IWL_DL_ISR
)) {
2212 inta
= iwl_read32(priv
, CSR_INT
);
2213 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
2214 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
2215 IWL_DEBUG_ISR(priv
, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
2216 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
2219 spin_unlock_irqrestore(&priv
->lock
, flags
);
2222 static int iwl3945_get_channels_for_scan(struct iwl_priv
*priv
,
2223 enum ieee80211_band band
,
2224 u8 is_active
, u8 n_probes
,
2225 struct iwl3945_scan_channel
*scan_ch
)
2227 const struct ieee80211_channel
*channels
= NULL
;
2228 const struct ieee80211_supported_band
*sband
;
2229 const struct iwl_channel_info
*ch_info
;
2230 u16 passive_dwell
= 0;
2231 u16 active_dwell
= 0;
2234 sband
= iwl_get_hw_mode(priv
, band
);
2238 channels
= sband
->channels
;
2240 active_dwell
= iwl_get_active_dwell_time(priv
, band
, n_probes
);
2241 passive_dwell
= iwl_get_passive_dwell_time(priv
, band
);
2243 if (passive_dwell
<= active_dwell
)
2244 passive_dwell
= active_dwell
+ 1;
2246 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
2247 if (channels
[i
].flags
& IEEE80211_CHAN_DISABLED
)
2250 scan_ch
->channel
= channels
[i
].hw_value
;
2252 ch_info
= iwl_get_channel_info(priv
, band
, scan_ch
->channel
);
2253 if (!is_channel_valid(ch_info
)) {
2254 IWL_DEBUG_SCAN(priv
, "Channel %d is INVALID for this band.\n",
2259 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
2260 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
2261 /* If passive , set up for auto-switch
2262 * and use long active_dwell time.
2264 if (!is_active
|| is_channel_passive(ch_info
) ||
2265 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
)) {
2266 scan_ch
->type
= 0; /* passive */
2267 if (IWL_UCODE_API(priv
->ucode_ver
) == 1)
2268 scan_ch
->active_dwell
= cpu_to_le16(passive_dwell
- 1);
2270 scan_ch
->type
= 1; /* active */
2273 /* Set direct probe bits. These may be used both for active
2274 * scan channels (probes gets sent right away),
2275 * or for passive channels (probes get se sent only after
2276 * hearing clear Rx packet).*/
2277 if (IWL_UCODE_API(priv
->ucode_ver
) >= 2) {
2279 scan_ch
->type
|= IWL39_SCAN_PROBE_MASK(n_probes
);
2281 /* uCode v1 does not allow setting direct probe bits on
2282 * passive channel. */
2283 if ((scan_ch
->type
& 1) && n_probes
)
2284 scan_ch
->type
|= IWL39_SCAN_PROBE_MASK(n_probes
);
2287 /* Set txpower levels to defaults */
2288 scan_ch
->tpc
.dsp_atten
= 110;
2289 /* scan_pwr_info->tpc.dsp_atten; */
2291 /*scan_pwr_info->tpc.tx_gain; */
2292 if (band
== IEEE80211_BAND_5GHZ
)
2293 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
2295 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
2296 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
2298 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
2302 IWL_DEBUG_SCAN(priv
, "Scanning %d [%s %d]\n",
2304 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
2305 (scan_ch
->type
& 1) ?
2306 active_dwell
: passive_dwell
);
2312 IWL_DEBUG_SCAN(priv
, "total channels to scan %d \n", added
);
2316 static void iwl3945_init_hw_rates(struct iwl_priv
*priv
,
2317 struct ieee80211_rate
*rates
)
2321 for (i
= 0; i
< IWL_RATE_COUNT
; i
++) {
2322 rates
[i
].bitrate
= iwl3945_rates
[i
].ieee
* 5;
2323 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
2324 rates
[i
].hw_value_short
= i
;
2326 if ((i
> IWL39_LAST_OFDM_RATE
) || (i
< IWL_FIRST_OFDM_RATE
)) {
2328 * If CCK != 1M then set short preamble rate flag.
2330 rates
[i
].flags
|= (iwl3945_rates
[i
].plcp
== 10) ?
2331 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
2336 /******************************************************************************
2338 * uCode download functions
2340 ******************************************************************************/
2342 static void iwl3945_dealloc_ucode_pci(struct iwl_priv
*priv
)
2344 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
2345 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
2346 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
2347 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
2348 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
2349 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
2353 * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
2354 * looking at all data.
2356 static int iwl3945_verify_inst_full(struct iwl_priv
*priv
, __le32
*image
, u32 len
)
2363 IWL_DEBUG_INFO(priv
, "ucode inst image size is %u\n", len
);
2365 rc
= iwl_grab_nic_access(priv
);
2369 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
2370 IWL39_RTC_INST_LOWER_BOUND
);
2373 for (; len
> 0; len
-= sizeof(u32
), image
++) {
2374 /* read data comes through single port, auto-incr addr */
2375 /* NOTE: Use the debugless read so we don't flood kernel log
2376 * if IWL_DL_IO is set */
2377 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
2378 if (val
!= le32_to_cpu(*image
)) {
2379 IWL_ERR(priv
, "uCode INST section is invalid at "
2380 "offset 0x%x, is 0x%x, s/b 0x%x\n",
2381 save_len
- len
, val
, le32_to_cpu(*image
));
2389 iwl_release_nic_access(priv
);
2392 IWL_DEBUG_INFO(priv
,
2393 "ucode image in INSTRUCTION memory is good\n");
2400 * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
2401 * using sample data 100 bytes apart. If these sample points are good,
2402 * it's a pretty good bet that everything between them is good, too.
2404 static int iwl3945_verify_inst_sparse(struct iwl_priv
*priv
, __le32
*image
, u32 len
)
2411 IWL_DEBUG_INFO(priv
, "ucode inst image size is %u\n", len
);
2413 rc
= iwl_grab_nic_access(priv
);
2417 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
2418 /* read data comes through single port, auto-incr addr */
2419 /* NOTE: Use the debugless read so we don't flood kernel log
2420 * if IWL_DL_IO is set */
2421 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
2422 i
+ IWL39_RTC_INST_LOWER_BOUND
);
2423 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
2424 if (val
!= le32_to_cpu(*image
)) {
2425 #if 0 /* Enable this if you want to see details */
2426 IWL_ERR(priv
, "uCode INST section is invalid at "
2427 "offset 0x%x, is 0x%x, s/b 0x%x\n",
2437 iwl_release_nic_access(priv
);
2444 * iwl3945_verify_ucode - determine which instruction image is in SRAM,
2445 * and verify its contents
2447 static int iwl3945_verify_ucode(struct iwl_priv
*priv
)
2454 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
2455 len
= priv
->ucode_boot
.len
;
2456 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
2458 IWL_DEBUG_INFO(priv
, "Bootstrap uCode is good in inst SRAM\n");
2462 /* Try initialize */
2463 image
= (__le32
*)priv
->ucode_init
.v_addr
;
2464 len
= priv
->ucode_init
.len
;
2465 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
2467 IWL_DEBUG_INFO(priv
, "Initialize uCode is good in inst SRAM\n");
2471 /* Try runtime/protocol */
2472 image
= (__le32
*)priv
->ucode_code
.v_addr
;
2473 len
= priv
->ucode_code
.len
;
2474 rc
= iwl3945_verify_inst_sparse(priv
, image
, len
);
2476 IWL_DEBUG_INFO(priv
, "Runtime uCode is good in inst SRAM\n");
2480 IWL_ERR(priv
, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
2482 /* Since nothing seems to match, show first several data entries in
2483 * instruction SRAM, so maybe visual inspection will give a clue.
2484 * Selection of bootstrap image (vs. other images) is arbitrary. */
2485 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
2486 len
= priv
->ucode_boot
.len
;
2487 rc
= iwl3945_verify_inst_full(priv
, image
, len
);
2492 static void iwl3945_nic_start(struct iwl_priv
*priv
)
2494 /* Remove all resets to allow NIC to operate */
2495 iwl_write32(priv
, CSR_RESET
, 0);
2499 * iwl3945_read_ucode - Read uCode images from disk file.
2501 * Copy into buffers for card to fetch via bus-mastering
2503 static int iwl3945_read_ucode(struct iwl_priv
*priv
)
2505 struct iwl_ucode
*ucode
;
2506 int ret
= -EINVAL
, index
;
2507 const struct firmware
*ucode_raw
;
2508 /* firmware file name contains uCode/driver compatibility version */
2509 const char *name_pre
= priv
->cfg
->fw_name_pre
;
2510 const unsigned int api_max
= priv
->cfg
->ucode_api_max
;
2511 const unsigned int api_min
= priv
->cfg
->ucode_api_min
;
2515 u32 api_ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
2517 /* Ask kernel firmware_class module to get the boot firmware off disk.
2518 * request_firmware() is synchronous, file is in memory on return. */
2519 for (index
= api_max
; index
>= api_min
; index
--) {
2520 sprintf(buf
, "%s%u%s", name_pre
, index
, ".ucode");
2521 ret
= request_firmware(&ucode_raw
, buf
, &priv
->pci_dev
->dev
);
2523 IWL_ERR(priv
, "%s firmware file req failed: %d\n",
2530 if (index
< api_max
)
2531 IWL_ERR(priv
, "Loaded firmware %s, "
2532 "which is deprecated. "
2533 " Please use API v%u instead.\n",
2535 IWL_DEBUG_INFO(priv
, "Got firmware '%s' file "
2536 "(%zd bytes) from disk\n",
2537 buf
, ucode_raw
->size
);
2545 /* Make sure that we got at least our header! */
2546 if (ucode_raw
->size
< sizeof(*ucode
)) {
2547 IWL_ERR(priv
, "File size way too small!\n");
2552 /* Data from ucode file: header followed by uCode images */
2553 ucode
= (void *)ucode_raw
->data
;
2555 priv
->ucode_ver
= le32_to_cpu(ucode
->ver
);
2556 api_ver
= IWL_UCODE_API(priv
->ucode_ver
);
2557 inst_size
= le32_to_cpu(ucode
->inst_size
);
2558 data_size
= le32_to_cpu(ucode
->data_size
);
2559 init_size
= le32_to_cpu(ucode
->init_size
);
2560 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
2561 boot_size
= le32_to_cpu(ucode
->boot_size
);
2563 /* api_ver should match the api version forming part of the
2564 * firmware filename ... but we don't check for that and only rely
2565 * on the API version read from firware header from here on forward */
2567 if (api_ver
< api_min
|| api_ver
> api_max
) {
2568 IWL_ERR(priv
, "Driver unable to support your firmware API. "
2569 "Driver supports v%u, firmware is v%u.\n",
2571 priv
->ucode_ver
= 0;
2575 if (api_ver
!= api_max
)
2576 IWL_ERR(priv
, "Firmware has old API version. Expected %u, "
2577 "got %u. New firmware can be obtained "
2578 "from http://www.intellinuxwireless.org.\n",
2581 IWL_INFO(priv
, "loaded firmware version %u.%u.%u.%u\n",
2582 IWL_UCODE_MAJOR(priv
->ucode_ver
),
2583 IWL_UCODE_MINOR(priv
->ucode_ver
),
2584 IWL_UCODE_API(priv
->ucode_ver
),
2585 IWL_UCODE_SERIAL(priv
->ucode_ver
));
2587 IWL_DEBUG_INFO(priv
, "f/w package hdr ucode version raw = 0x%x\n",
2589 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime inst size = %u\n",
2591 IWL_DEBUG_INFO(priv
, "f/w package hdr runtime data size = %u\n",
2593 IWL_DEBUG_INFO(priv
, "f/w package hdr init inst size = %u\n",
2595 IWL_DEBUG_INFO(priv
, "f/w package hdr init data size = %u\n",
2597 IWL_DEBUG_INFO(priv
, "f/w package hdr boot inst size = %u\n",
2601 /* Verify size of file vs. image size info in file's header */
2602 if (ucode_raw
->size
< sizeof(*ucode
) +
2603 inst_size
+ data_size
+ init_size
+
2604 init_data_size
+ boot_size
) {
2606 IWL_DEBUG_INFO(priv
, "uCode file size %zd too small\n",
2612 /* Verify that uCode images will fit in card's SRAM */
2613 if (inst_size
> IWL39_MAX_INST_SIZE
) {
2614 IWL_DEBUG_INFO(priv
, "uCode instr len %d too large to fit in\n",
2620 if (data_size
> IWL39_MAX_DATA_SIZE
) {
2621 IWL_DEBUG_INFO(priv
, "uCode data len %d too large to fit in\n",
2626 if (init_size
> IWL39_MAX_INST_SIZE
) {
2627 IWL_DEBUG_INFO(priv
,
2628 "uCode init instr len %d too large to fit in\n",
2633 if (init_data_size
> IWL39_MAX_DATA_SIZE
) {
2634 IWL_DEBUG_INFO(priv
,
2635 "uCode init data len %d too large to fit in\n",
2640 if (boot_size
> IWL39_MAX_BSM_SIZE
) {
2641 IWL_DEBUG_INFO(priv
,
2642 "uCode boot instr len %d too large to fit in\n",
2648 /* Allocate ucode buffers for card's bus-master loading ... */
2650 /* Runtime instructions and 2 copies of data:
2651 * 1) unmodified from disk
2652 * 2) backup cache for save/restore during power-downs */
2653 priv
->ucode_code
.len
= inst_size
;
2654 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
2656 priv
->ucode_data
.len
= data_size
;
2657 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
2659 priv
->ucode_data_backup
.len
= data_size
;
2660 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
2662 if (!priv
->ucode_code
.v_addr
|| !priv
->ucode_data
.v_addr
||
2663 !priv
->ucode_data_backup
.v_addr
)
2666 /* Initialization instructions and data */
2667 if (init_size
&& init_data_size
) {
2668 priv
->ucode_init
.len
= init_size
;
2669 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
2671 priv
->ucode_init_data
.len
= init_data_size
;
2672 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
2674 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
2678 /* Bootstrap (instructions only, no data) */
2680 priv
->ucode_boot
.len
= boot_size
;
2681 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
2683 if (!priv
->ucode_boot
.v_addr
)
2687 /* Copy images into buffers for card's bus-master reads ... */
2689 /* Runtime instructions (first block of data in file) */
2690 src
= &ucode
->data
[0];
2691 len
= priv
->ucode_code
.len
;
2692 IWL_DEBUG_INFO(priv
,
2693 "Copying (but not loading) uCode instr len %zd\n", len
);
2694 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
2695 IWL_DEBUG_INFO(priv
, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
2696 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
2698 /* Runtime data (2nd block)
2699 * NOTE: Copy into backup buffer will be done in iwl3945_up() */
2700 src
= &ucode
->data
[inst_size
];
2701 len
= priv
->ucode_data
.len
;
2702 IWL_DEBUG_INFO(priv
,
2703 "Copying (but not loading) uCode data len %zd\n", len
);
2704 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
2705 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
2707 /* Initialization instructions (3rd block) */
2709 src
= &ucode
->data
[inst_size
+ data_size
];
2710 len
= priv
->ucode_init
.len
;
2711 IWL_DEBUG_INFO(priv
,
2712 "Copying (but not loading) init instr len %zd\n", len
);
2713 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
2716 /* Initialization data (4th block) */
2717 if (init_data_size
) {
2718 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
2719 len
= priv
->ucode_init_data
.len
;
2720 IWL_DEBUG_INFO(priv
,
2721 "Copying (but not loading) init data len %zd\n", len
);
2722 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
2725 /* Bootstrap instructions (5th block) */
2726 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
2727 len
= priv
->ucode_boot
.len
;
2728 IWL_DEBUG_INFO(priv
,
2729 "Copying (but not loading) boot instr len %zd\n", len
);
2730 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
2732 /* We have our copies now, allow OS release its copies */
2733 release_firmware(ucode_raw
);
2737 IWL_ERR(priv
, "failed to allocate pci memory\n");
2739 iwl3945_dealloc_ucode_pci(priv
);
2742 release_firmware(ucode_raw
);
2750 * iwl3945_set_ucode_ptrs - Set uCode address location
2752 * Tell initialization uCode where to find runtime uCode.
2754 * BSM registers initially contain pointers to initialization uCode.
2755 * We need to replace them to load runtime uCode inst and data,
2756 * and to save runtime data when powering down.
2758 static int iwl3945_set_ucode_ptrs(struct iwl_priv
*priv
)
2763 unsigned long flags
;
2765 /* bits 31:0 for 3945 */
2766 pinst
= priv
->ucode_code
.p_addr
;
2767 pdata
= priv
->ucode_data_backup
.p_addr
;
2769 spin_lock_irqsave(&priv
->lock
, flags
);
2770 rc
= iwl_grab_nic_access(priv
);
2772 spin_unlock_irqrestore(&priv
->lock
, flags
);
2776 /* Tell bootstrap uCode where to find image to load */
2777 iwl_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
2778 iwl_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
2779 iwl_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
,
2780 priv
->ucode_data
.len
);
2782 /* Inst byte count must be last to set up, bit 31 signals uCode
2783 * that all new ptr/size info is in place */
2784 iwl_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
,
2785 priv
->ucode_code
.len
| BSM_DRAM_INST_LOAD
);
2787 iwl_release_nic_access(priv
);
2789 spin_unlock_irqrestore(&priv
->lock
, flags
);
2791 IWL_DEBUG_INFO(priv
, "Runtime uCode pointers are set.\n");
2797 * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
2799 * Called after REPLY_ALIVE notification received from "initialize" uCode.
2801 * Tell "initialize" uCode to go ahead and load the runtime uCode.
2803 static void iwl3945_init_alive_start(struct iwl_priv
*priv
)
2805 /* Check alive response for "valid" sign from uCode */
2806 if (priv
->card_alive_init
.is_valid
!= UCODE_VALID_OK
) {
2807 /* We had an error bringing up the hardware, so take it
2808 * all the way back down so we can try again */
2809 IWL_DEBUG_INFO(priv
, "Initialize Alive failed.\n");
2813 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
2814 * This is a paranoid check, because we would not have gotten the
2815 * "initialize" alive if code weren't properly loaded. */
2816 if (iwl3945_verify_ucode(priv
)) {
2817 /* Runtime instruction load was bad;
2818 * take it all the way back down so we can try again */
2819 IWL_DEBUG_INFO(priv
, "Bad \"initialize\" uCode load.\n");
2823 /* Send pointers to protocol/runtime uCode image ... init code will
2824 * load and launch runtime uCode, which will send us another "Alive"
2826 IWL_DEBUG_INFO(priv
, "Initialization Alive received.\n");
2827 if (iwl3945_set_ucode_ptrs(priv
)) {
2828 /* Runtime instruction load won't happen;
2829 * take it all the way back down so we can try again */
2830 IWL_DEBUG_INFO(priv
, "Couldn't set up uCode pointers.\n");
2836 queue_work(priv
->workqueue
, &priv
->restart
);
2841 static int iwl3945_mac_beacon_update(struct ieee80211_hw
*hw
,
2842 struct sk_buff
*skb
);
2845 * iwl3945_alive_start - called after REPLY_ALIVE notification received
2846 * from protocol/runtime uCode (initialization uCode's
2847 * Alive gets handled by iwl3945_init_alive_start()).
2849 static void iwl3945_alive_start(struct iwl_priv
*priv
)
2852 int thermal_spin
= 0;
2855 IWL_DEBUG_INFO(priv
, "Runtime Alive received.\n");
2857 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
2858 /* We had an error bringing up the hardware, so take it
2859 * all the way back down so we can try again */
2860 IWL_DEBUG_INFO(priv
, "Alive failed.\n");
2864 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
2865 * This is a paranoid check, because we would not have gotten the
2866 * "runtime" alive if code weren't properly loaded. */
2867 if (iwl3945_verify_ucode(priv
)) {
2868 /* Runtime instruction load was bad;
2869 * take it all the way back down so we can try again */
2870 IWL_DEBUG_INFO(priv
, "Bad runtime uCode load.\n");
2874 iwl3945_clear_stations_table(priv
);
2876 rc
= iwl_grab_nic_access(priv
);
2878 IWL_WARN(priv
, "Can not read RFKILL status from adapter\n");
2882 rfkill
= iwl_read_prph(priv
, APMG_RFKILL_REG
);
2883 IWL_DEBUG_INFO(priv
, "RFKILL status: 0x%x\n", rfkill
);
2884 iwl_release_nic_access(priv
);
2887 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2888 /* if RFKILL is not on, then wait for thermal
2889 * sensor in adapter to kick in */
2890 while (iwl3945_hw_get_temperature(priv
) == 0) {
2896 IWL_DEBUG_INFO(priv
, "Thermal calibration took %dus\n",
2899 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2901 /* After the ALIVE response, we can send commands to 3945 uCode */
2902 set_bit(STATUS_ALIVE
, &priv
->status
);
2904 /* Clear out the uCode error bit if it is set */
2905 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
2907 if (iwl_is_rfkill(priv
))
2910 ieee80211_wake_queues(priv
->hw
);
2912 priv
->active_rate
= priv
->rates_mask
;
2913 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
2915 iwl_power_update_mode(priv
, false);
2917 if (iwl_is_associated(priv
)) {
2918 struct iwl3945_rxon_cmd
*active_rxon
=
2919 (struct iwl3945_rxon_cmd
*)(&priv
->active_rxon
);
2921 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
2922 sizeof(priv
->staging_rxon
));
2923 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2925 /* Initialize our rx_config data */
2926 iwl_connection_init_rx_config(priv
, priv
->iw_mode
);
2929 /* Configure Bluetooth device coexistence support */
2930 iwl_send_bt_config(priv
);
2932 /* Configure the adapter for unassociated operation */
2933 iwl3945_commit_rxon(priv
);
2935 iwl3945_reg_txpower_periodic(priv
);
2937 iwl3945_led_register(priv
);
2939 IWL_DEBUG_INFO(priv
, "ALIVE processing complete.\n");
2940 set_bit(STATUS_READY
, &priv
->status
);
2941 wake_up_interruptible(&priv
->wait_command_queue
);
2943 if (priv
->error_recovering
)
2944 iwl3945_error_recovery(priv
);
2946 /* reassociate for ADHOC mode */
2947 if (priv
->vif
&& (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)) {
2948 struct sk_buff
*beacon
= ieee80211_beacon_get(priv
->hw
,
2951 iwl3945_mac_beacon_update(priv
->hw
, beacon
);
2957 queue_work(priv
->workqueue
, &priv
->restart
);
2960 static void iwl3945_cancel_deferred_work(struct iwl_priv
*priv
);
2962 static void __iwl3945_down(struct iwl_priv
*priv
)
2964 unsigned long flags
;
2965 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2966 struct ieee80211_conf
*conf
= NULL
;
2968 IWL_DEBUG_INFO(priv
, DRV_NAME
" is going down\n");
2970 conf
= ieee80211_get_hw_conf(priv
->hw
);
2973 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2975 iwl3945_led_unregister(priv
);
2976 iwl3945_clear_stations_table(priv
);
2978 /* Unblock any waiting calls */
2979 wake_up_interruptible_all(&priv
->wait_command_queue
);
2981 /* Wipe out the EXIT_PENDING status bit if we are not actually
2982 * exiting the module */
2984 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2986 /* stop and reset the on-board processor */
2987 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
2989 /* tell the device to stop sending interrupts */
2990 spin_lock_irqsave(&priv
->lock
, flags
);
2991 iwl_disable_interrupts(priv
);
2992 spin_unlock_irqrestore(&priv
->lock
, flags
);
2993 iwl_synchronize_irq(priv
);
2995 if (priv
->mac80211_registered
)
2996 ieee80211_stop_queues(priv
->hw
);
2998 /* If we have not previously called iwl3945_init() then
2999 * clear all bits but the RF Kill and SUSPEND bits and return */
3000 if (!iwl_is_init(priv
)) {
3001 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
3003 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
3005 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
3006 STATUS_GEO_CONFIGURED
|
3007 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
3009 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
3010 STATUS_EXIT_PENDING
;
3014 /* ...otherwise clear out all the status bits but the RF Kill and
3015 * SUSPEND bits and continue taking the NIC down. */
3016 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
3018 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
3020 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
3021 STATUS_GEO_CONFIGURED
|
3022 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
3024 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
3026 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
3027 STATUS_EXIT_PENDING
;
3029 priv
->cfg
->ops
->lib
->apm_ops
.reset(priv
);
3030 spin_lock_irqsave(&priv
->lock
, flags
);
3031 iwl_clear_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3032 spin_unlock_irqrestore(&priv
->lock
, flags
);
3034 iwl3945_hw_txq_ctx_stop(priv
);
3035 iwl3945_hw_rxq_stop(priv
);
3037 spin_lock_irqsave(&priv
->lock
, flags
);
3038 if (!iwl_grab_nic_access(priv
)) {
3039 iwl_write_prph(priv
, APMG_CLK_DIS_REG
,
3040 APMG_CLK_VAL_DMA_CLK_RQT
);
3041 iwl_release_nic_access(priv
);
3043 spin_unlock_irqrestore(&priv
->lock
, flags
);
3047 if (exit_pending
|| test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
3048 priv
->cfg
->ops
->lib
->apm_ops
.stop(priv
);
3050 priv
->cfg
->ops
->lib
->apm_ops
.reset(priv
);
3053 memset(&priv
->card_alive
, 0, sizeof(struct iwl_alive_resp
));
3055 if (priv
->ibss_beacon
)
3056 dev_kfree_skb(priv
->ibss_beacon
);
3057 priv
->ibss_beacon
= NULL
;
3059 /* clear out any free frames */
3060 iwl3945_clear_free_frames(priv
);
3063 static void iwl3945_down(struct iwl_priv
*priv
)
3065 mutex_lock(&priv
->mutex
);
3066 __iwl3945_down(priv
);
3067 mutex_unlock(&priv
->mutex
);
3069 iwl3945_cancel_deferred_work(priv
);
3072 #define MAX_HW_RESTARTS 5
3074 static int __iwl3945_up(struct iwl_priv
*priv
)
3078 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
3079 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
3083 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
3084 IWL_WARN(priv
, "Radio disabled by SW RF kill (module "
3089 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
3090 IWL_ERR(priv
, "ucode not available for device bring up\n");
3094 /* If platform's RF_KILL switch is NOT set to KILL */
3095 if (iwl_read32(priv
, CSR_GP_CNTRL
) &
3096 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
3097 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3099 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3100 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
3101 IWL_WARN(priv
, "Radio disabled by HW RF Kill switch\n");
3106 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
3108 rc
= iwl3945_hw_nic_init(priv
);
3110 IWL_ERR(priv
, "Unable to int nic\n");
3114 /* make sure rfkill handshake bits are cleared */
3115 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3116 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
3117 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3119 /* clear (again), then enable host interrupts */
3120 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
3121 iwl_enable_interrupts(priv
);
3123 /* really make sure rfkill handshake bits are cleared */
3124 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3125 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3127 /* Copy original ucode data image from disk into backup cache.
3128 * This will be used to initialize the on-board processor's
3129 * data SRAM for a clean start when the runtime program first loads. */
3130 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
3131 priv
->ucode_data
.len
);
3133 /* We return success when we resume from suspend and rf_kill is on. */
3134 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
3137 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
3139 iwl3945_clear_stations_table(priv
);
3141 /* load bootstrap state machine,
3142 * load bootstrap program into processor's memory,
3143 * prepare to load the "initialize" uCode */
3144 priv
->cfg
->ops
->lib
->load_ucode(priv
);
3148 "Unable to set up bootstrap uCode: %d\n", rc
);
3152 /* start card; "initialize" will load runtime ucode */
3153 iwl3945_nic_start(priv
);
3155 IWL_DEBUG_INFO(priv
, DRV_NAME
" is coming up\n");
3160 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3161 __iwl3945_down(priv
);
3162 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3164 /* tried to restart and config the device for as long as our
3165 * patience could withstand */
3166 IWL_ERR(priv
, "Unable to initialize device after %d attempts.\n", i
);
3171 /*****************************************************************************
3173 * Workqueue callbacks
3175 *****************************************************************************/
3177 static void iwl3945_bg_init_alive_start(struct work_struct
*data
)
3179 struct iwl_priv
*priv
=
3180 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
3182 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3185 mutex_lock(&priv
->mutex
);
3186 iwl3945_init_alive_start(priv
);
3187 mutex_unlock(&priv
->mutex
);
3190 static void iwl3945_bg_alive_start(struct work_struct
*data
)
3192 struct iwl_priv
*priv
=
3193 container_of(data
, struct iwl_priv
, alive_start
.work
);
3195 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3198 mutex_lock(&priv
->mutex
);
3199 iwl3945_alive_start(priv
);
3200 mutex_unlock(&priv
->mutex
);
3203 static void iwl3945_rfkill_poll(struct work_struct
*data
)
3205 struct iwl_priv
*priv
=
3206 container_of(data
, struct iwl_priv
, rfkill_poll
.work
);
3207 unsigned long status
= priv
->status
;
3209 if (iwl_read32(priv
, CSR_GP_CNTRL
) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
3210 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3212 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3214 if (test_bit(STATUS_RF_KILL_HW
, &status
) != test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
3215 queue_work(priv
->workqueue
, &priv
->rf_kill
);
3217 queue_delayed_work(priv
->workqueue
, &priv
->rfkill_poll
,
3218 round_jiffies_relative(2 * HZ
));
3222 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
3223 static void iwl3945_bg_request_scan(struct work_struct
*data
)
3225 struct iwl_priv
*priv
=
3226 container_of(data
, struct iwl_priv
, request_scan
);
3227 struct iwl_host_cmd cmd
= {
3228 .id
= REPLY_SCAN_CMD
,
3229 .len
= sizeof(struct iwl3945_scan_cmd
),
3230 .meta
.flags
= CMD_SIZE_HUGE
,
3233 struct iwl3945_scan_cmd
*scan
;
3234 struct ieee80211_conf
*conf
= NULL
;
3236 enum ieee80211_band band
;
3237 DECLARE_SSID_BUF(ssid
);
3239 conf
= ieee80211_get_hw_conf(priv
->hw
);
3241 mutex_lock(&priv
->mutex
);
3243 if (!iwl_is_ready(priv
)) {
3244 IWL_WARN(priv
, "request scan called when driver not ready.\n");
3248 /* Make sure the scan wasn't canceled before this queued work
3249 * was given the chance to run... */
3250 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
3253 /* This should never be called or scheduled if there is currently
3254 * a scan active in the hardware. */
3255 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
3256 IWL_DEBUG_INFO(priv
, "Multiple concurrent scan requests "
3257 "Ignoring second request.\n");
3262 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
3263 IWL_DEBUG_SCAN(priv
, "Aborting scan due to device shutdown\n");
3267 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3269 "Scan request while abort pending. Queuing.\n");
3273 if (iwl_is_rfkill(priv
)) {
3274 IWL_DEBUG_HC(priv
, "Aborting scan due to RF Kill activation\n");
3278 if (!test_bit(STATUS_READY
, &priv
->status
)) {
3280 "Scan request while uninitialized. Queuing.\n");
3284 if (!priv
->scan_bands
) {
3285 IWL_DEBUG_HC(priv
, "Aborting scan due to no requested bands\n");
3290 priv
->scan
= kmalloc(sizeof(struct iwl3945_scan_cmd
) +
3291 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
3298 memset(scan
, 0, sizeof(struct iwl3945_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
3300 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
3301 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
3303 if (iwl_is_associated(priv
)) {
3306 u32 suspend_time
= 100;
3307 u32 scan_suspend_time
= 100;
3308 unsigned long flags
;
3310 IWL_DEBUG_INFO(priv
, "Scanning while associated...\n");
3312 spin_lock_irqsave(&priv
->lock
, flags
);
3313 interval
= priv
->beacon_int
;
3314 spin_unlock_irqrestore(&priv
->lock
, flags
);
3316 scan
->suspend_time
= 0;
3317 scan
->max_out_time
= cpu_to_le32(200 * 1024);
3319 interval
= suspend_time
;
3321 * suspend time format:
3322 * 0-19: beacon interval in usec (time before exec.)
3324 * 24-31: number of beacons (suspend between channels)
3327 extra
= (suspend_time
/ interval
) << 24;
3328 scan_suspend_time
= 0xFF0FFFFF &
3329 (extra
| ((suspend_time
% interval
) * 1024));
3331 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
3332 IWL_DEBUG_SCAN(priv
, "suspend_time 0x%X beacon interval %d\n",
3333 scan_suspend_time
, interval
);
3336 /* We should add the ability for user to lock to PASSIVE ONLY */
3337 if (priv
->one_direct_scan
) {
3338 IWL_DEBUG_SCAN(priv
, "Kicking off one direct scan for '%s'\n",
3339 print_ssid(ssid
, priv
->direct_ssid
,
3340 priv
->direct_ssid_len
));
3341 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
3342 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
3343 memcpy(scan
->direct_scan
[0].ssid
,
3344 priv
->direct_ssid
, priv
->direct_ssid_len
);
3347 IWL_DEBUG_SCAN(priv
, "Kicking off one indirect scan.\n");
3349 /* We don't build a direct scan probe request; the uCode will do
3350 * that based on the direct_mask added to each channel entry */
3351 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
3352 scan
->tx_cmd
.sta_id
= priv
->hw_params
.bcast_sta_id
;
3353 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
3355 /* flags + rate selection */
3357 if (priv
->scan_bands
& BIT(IEEE80211_BAND_2GHZ
)) {
3358 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
3359 scan
->tx_cmd
.rate
= IWL_RATE_1M_PLCP
;
3360 scan
->good_CRC_th
= 0;
3361 band
= IEEE80211_BAND_2GHZ
;
3362 } else if (priv
->scan_bands
& BIT(IEEE80211_BAND_5GHZ
)) {
3363 scan
->tx_cmd
.rate
= IWL_RATE_6M_PLCP
;
3364 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
3365 band
= IEEE80211_BAND_5GHZ
;
3367 IWL_WARN(priv
, "Invalid scan band count\n");
3371 scan
->tx_cmd
.len
= cpu_to_le16(
3372 iwl_fill_probe_req(priv
, band
,
3373 (struct ieee80211_mgmt
*)scan
->data
,
3374 IWL_MAX_SCAN_SIZE
- sizeof(*scan
)));
3376 /* select Rx antennas */
3377 scan
->flags
|= iwl3945_get_antenna_flags(priv
);
3379 if (priv
->iw_mode
== NL80211_IFTYPE_MONITOR
)
3380 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
3382 scan
->channel_count
=
3383 iwl3945_get_channels_for_scan(priv
, band
, 1, /* active */
3385 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
3387 if (scan
->channel_count
== 0) {
3388 IWL_DEBUG_SCAN(priv
, "channel count %d\n", scan
->channel_count
);
3392 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
3393 scan
->channel_count
* sizeof(struct iwl3945_scan_channel
);
3395 scan
->len
= cpu_to_le16(cmd
.len
);
3397 set_bit(STATUS_SCAN_HW
, &priv
->status
);
3398 rc
= iwl_send_cmd_sync(priv
, &cmd
);
3402 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
3403 IWL_SCAN_CHECK_WATCHDOG
);
3405 mutex_unlock(&priv
->mutex
);
3409 /* can not perform scan make sure we clear scanning
3410 * bits from status so next scan request can be performed.
3411 * if we dont clear scanning status bit here all next scan
3414 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
3415 clear_bit(STATUS_SCANNING
, &priv
->status
);
3417 /* inform mac80211 scan aborted */
3418 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3419 mutex_unlock(&priv
->mutex
);
3422 static void iwl3945_bg_up(struct work_struct
*data
)
3424 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, up
);
3426 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3429 mutex_lock(&priv
->mutex
);
3431 mutex_unlock(&priv
->mutex
);
3432 iwl_rfkill_set_hw_state(priv
);
3435 static void iwl3945_bg_restart(struct work_struct
*data
)
3437 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
3439 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3443 queue_work(priv
->workqueue
, &priv
->up
);
3446 static void iwl3945_bg_rx_replenish(struct work_struct
*data
)
3448 struct iwl_priv
*priv
=
3449 container_of(data
, struct iwl_priv
, rx_replenish
);
3451 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3454 mutex_lock(&priv
->mutex
);
3455 iwl3945_rx_replenish(priv
);
3456 mutex_unlock(&priv
->mutex
);
3459 #define IWL_DELAY_NEXT_SCAN (HZ*2)
3461 static void iwl3945_post_associate(struct iwl_priv
*priv
)
3464 struct ieee80211_conf
*conf
= NULL
;
3466 if (priv
->iw_mode
== NL80211_IFTYPE_AP
) {
3467 IWL_ERR(priv
, "%s Should not be called in AP mode\n", __func__
);
3472 IWL_DEBUG_ASSOC(priv
, "Associated as %d to: %pM\n",
3473 priv
->assoc_id
, priv
->active_rxon
.bssid_addr
);
3475 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3478 if (!priv
->vif
|| !priv
->is_open
)
3481 iwl_scan_cancel_timeout(priv
, 200);
3483 conf
= ieee80211_get_hw_conf(priv
->hw
);
3485 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
3486 iwl3945_commit_rxon(priv
);
3488 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl_rxon_time_cmd
));
3489 iwl3945_setup_rxon_timing(priv
);
3490 rc
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
3491 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
3493 IWL_WARN(priv
, "REPLY_RXON_TIMING failed - "
3494 "Attempting to continue.\n");
3496 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
3498 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
3500 IWL_DEBUG_ASSOC(priv
, "assoc id %d beacon interval %d\n",
3501 priv
->assoc_id
, priv
->beacon_int
);
3503 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
3504 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
3506 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
3508 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
3509 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
3510 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
3512 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
3514 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
3515 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
3519 iwl3945_commit_rxon(priv
);
3521 switch (priv
->iw_mode
) {
3522 case NL80211_IFTYPE_STATION
:
3523 iwl3945_rate_scale_init(priv
->hw
, IWL_AP_ID
);
3526 case NL80211_IFTYPE_ADHOC
:
3529 iwl3945_add_station(priv
, priv
->bssid
, 0, 0);
3530 iwl3945_sync_sta(priv
, IWL_STA_ID
,
3531 (priv
->band
== IEEE80211_BAND_5GHZ
) ?
3532 IWL_RATE_6M_PLCP
: IWL_RATE_1M_PLCP
,
3534 iwl3945_rate_scale_init(priv
->hw
, IWL_STA_ID
);
3535 iwl3945_send_beacon_cmd(priv
);
3540 IWL_ERR(priv
, "%s Should not be called in %d mode\n",
3541 __func__
, priv
->iw_mode
);
3545 iwl_activate_qos(priv
, 0);
3547 /* we have just associated, don't start scan too early */
3548 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
3551 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, u32 changed
);
3553 /*****************************************************************************
3555 * mac80211 entry point functions
3557 *****************************************************************************/
3559 #define UCODE_READY_TIMEOUT (2 * HZ)
3561 static int iwl3945_mac_start(struct ieee80211_hw
*hw
)
3563 struct iwl_priv
*priv
= hw
->priv
;
3566 IWL_DEBUG_MAC80211(priv
, "enter\n");
3568 /* we should be verifying the device is ready to be opened */
3569 mutex_lock(&priv
->mutex
);
3571 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
3572 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
3573 * ucode filename and max sizes are card-specific. */
3575 if (!priv
->ucode_code
.len
) {
3576 ret
= iwl3945_read_ucode(priv
);
3578 IWL_ERR(priv
, "Could not read microcode: %d\n", ret
);
3579 mutex_unlock(&priv
->mutex
);
3580 goto out_release_irq
;
3584 ret
= __iwl3945_up(priv
);
3586 mutex_unlock(&priv
->mutex
);
3588 iwl_rfkill_set_hw_state(priv
);
3591 goto out_release_irq
;
3593 IWL_DEBUG_INFO(priv
, "Start UP work.\n");
3595 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
3598 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
3599 * mac80211 will not be run successfully. */
3600 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
3601 test_bit(STATUS_READY
, &priv
->status
),
3602 UCODE_READY_TIMEOUT
);
3604 if (!test_bit(STATUS_READY
, &priv
->status
)) {
3606 "Wait for START_ALIVE timeout after %dms.\n",
3607 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
3609 goto out_release_irq
;
3613 /* ucode is running and will send rfkill notifications,
3614 * no need to poll the killswitch state anymore */
3615 cancel_delayed_work(&priv
->rfkill_poll
);
3618 IWL_DEBUG_MAC80211(priv
, "leave\n");
3623 IWL_DEBUG_MAC80211(priv
, "leave - failed\n");
3627 static void iwl3945_mac_stop(struct ieee80211_hw
*hw
)
3629 struct iwl_priv
*priv
= hw
->priv
;
3631 IWL_DEBUG_MAC80211(priv
, "enter\n");
3633 if (!priv
->is_open
) {
3634 IWL_DEBUG_MAC80211(priv
, "leave - skip\n");
3640 if (iwl_is_ready_rf(priv
)) {
3641 /* stop mac, cancel any scan request and clear
3642 * RXON_FILTER_ASSOC_MSK BIT
3644 mutex_lock(&priv
->mutex
);
3645 iwl_scan_cancel_timeout(priv
, 100);
3646 mutex_unlock(&priv
->mutex
);
3651 flush_workqueue(priv
->workqueue
);
3653 /* start polling the killswitch state again */
3654 queue_delayed_work(priv
->workqueue
, &priv
->rfkill_poll
,
3655 round_jiffies_relative(2 * HZ
));
3657 IWL_DEBUG_MAC80211(priv
, "leave\n");
3660 static int iwl3945_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
3662 struct iwl_priv
*priv
= hw
->priv
;
3664 IWL_DEBUG_MAC80211(priv
, "enter\n");
3666 IWL_DEBUG_TX(priv
, "dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
3667 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
3669 if (iwl3945_tx_skb(priv
, skb
))
3670 dev_kfree_skb_any(skb
);
3672 IWL_DEBUG_MAC80211(priv
, "leave\n");
3673 return NETDEV_TX_OK
;
3676 static int iwl3945_mac_add_interface(struct ieee80211_hw
*hw
,
3677 struct ieee80211_if_init_conf
*conf
)
3679 struct iwl_priv
*priv
= hw
->priv
;
3680 unsigned long flags
;
3682 IWL_DEBUG_MAC80211(priv
, "enter: type %d\n", conf
->type
);
3685 IWL_DEBUG_MAC80211(priv
, "leave - vif != NULL\n");
3689 spin_lock_irqsave(&priv
->lock
, flags
);
3690 priv
->vif
= conf
->vif
;
3691 priv
->iw_mode
= conf
->type
;
3693 spin_unlock_irqrestore(&priv
->lock
, flags
);
3695 mutex_lock(&priv
->mutex
);
3697 if (conf
->mac_addr
) {
3698 IWL_DEBUG_MAC80211(priv
, "Set: %pM\n", conf
->mac_addr
);
3699 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
3702 if (iwl_is_ready(priv
))
3703 iwl3945_set_mode(priv
, conf
->type
);
3705 mutex_unlock(&priv
->mutex
);
3707 IWL_DEBUG_MAC80211(priv
, "leave\n");
3712 * iwl3945_mac_config - mac80211 config callback
3714 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
3715 * be set inappropriately and the driver currently sets the hardware up to
3716 * use it whenever needed.
3718 static int iwl3945_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
3720 struct iwl_priv
*priv
= hw
->priv
;
3721 const struct iwl_channel_info
*ch_info
;
3722 struct ieee80211_conf
*conf
= &hw
->conf
;
3723 unsigned long flags
;
3726 mutex_lock(&priv
->mutex
);
3727 IWL_DEBUG_MAC80211(priv
, "enter to channel %d\n",
3728 conf
->channel
->hw_value
);
3730 if (!iwl_is_ready(priv
)) {
3731 IWL_DEBUG_MAC80211(priv
, "leave - not ready\n");
3736 if (unlikely(!iwl3945_mod_params
.disable_hw_scan
&&
3737 test_bit(STATUS_SCANNING
, &priv
->status
))) {
3738 IWL_DEBUG_MAC80211(priv
, "leave - scanning\n");
3739 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
3740 mutex_unlock(&priv
->mutex
);
3744 spin_lock_irqsave(&priv
->lock
, flags
);
3746 ch_info
= iwl_get_channel_info(priv
, conf
->channel
->band
,
3747 conf
->channel
->hw_value
);
3748 if (!is_channel_valid(ch_info
)) {
3749 IWL_DEBUG_SCAN(priv
,
3750 "Channel %d [%d] is INVALID for this band.\n",
3751 conf
->channel
->hw_value
, conf
->channel
->band
);
3752 IWL_DEBUG_MAC80211(priv
, "leave - invalid channel\n");
3753 spin_unlock_irqrestore(&priv
->lock
, flags
);
3758 iwl_set_rxon_channel(priv
, conf
->channel
);
3760 iwl_set_flags_for_band(priv
, conf
->channel
->band
);
3762 /* The list of supported rates and rate mask can be different
3763 * for each phymode; since the phymode may have changed, reset
3764 * the rate mask to what mac80211 lists */
3767 spin_unlock_irqrestore(&priv
->lock
, flags
);
3769 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
3770 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
3771 iwl3945_hw_channel_switch(priv
, conf
->channel
);
3776 if (changed
& IEEE80211_CONF_CHANGE_RADIO_ENABLED
) {
3777 if (conf
->radio_enabled
&&
3778 iwl_radio_kill_sw_enable_radio(priv
)) {
3779 IWL_DEBUG_MAC80211(priv
, "leave - RF-KILL - "
3780 "waiting for uCode\n");
3784 if (!conf
->radio_enabled
) {
3785 iwl_radio_kill_sw_disable_radio(priv
);
3786 IWL_DEBUG_MAC80211(priv
, "leave - radio disabled\n");
3791 if (iwl_is_rfkill(priv
)) {
3792 IWL_DEBUG_MAC80211(priv
, "leave - RF kill\n");
3799 if (memcmp(&priv
->active_rxon
,
3800 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
3801 iwl3945_commit_rxon(priv
);
3803 IWL_DEBUG_INFO(priv
, "Not re-sending same RXON configuration\n");
3805 IWL_DEBUG_MAC80211(priv
, "leave\n");
3808 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
3809 mutex_unlock(&priv
->mutex
);
3813 static void iwl3945_config_ap(struct iwl_priv
*priv
)
3817 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3820 /* The following should be done only at AP bring up */
3821 if (!(iwl_is_associated(priv
))) {
3823 /* RXON - unassoc (to set timing command) */
3824 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
3825 iwl3945_commit_rxon(priv
);
3828 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl_rxon_time_cmd
));
3829 iwl3945_setup_rxon_timing(priv
);
3830 rc
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
3831 sizeof(priv
->rxon_timing
),
3832 &priv
->rxon_timing
);
3834 IWL_WARN(priv
, "REPLY_RXON_TIMING failed - "
3835 "Attempting to continue.\n");
3837 /* FIXME: what should be the assoc_id for AP? */
3838 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
3839 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
3840 priv
->staging_rxon
.flags
|=
3841 RXON_FLG_SHORT_PREAMBLE_MSK
;
3843 priv
->staging_rxon
.flags
&=
3844 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
3846 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
3847 if (priv
->assoc_capability
&
3848 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
3849 priv
->staging_rxon
.flags
|=
3850 RXON_FLG_SHORT_SLOT_MSK
;
3852 priv
->staging_rxon
.flags
&=
3853 ~RXON_FLG_SHORT_SLOT_MSK
;
3855 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
)
3856 priv
->staging_rxon
.flags
&=
3857 ~RXON_FLG_SHORT_SLOT_MSK
;
3859 /* restore RXON assoc */
3860 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
3861 iwl3945_commit_rxon(priv
);
3862 iwl3945_add_station(priv
, iwl_bcast_addr
, 0, 0);
3864 iwl3945_send_beacon_cmd(priv
);
3866 /* FIXME - we need to add code here to detect a totally new
3867 * configuration, reset the AP, unassoc, rxon timing, assoc,
3868 * clear sta table, add BCAST sta... */
3871 static int iwl3945_mac_config_interface(struct ieee80211_hw
*hw
,
3872 struct ieee80211_vif
*vif
,
3873 struct ieee80211_if_conf
*conf
)
3875 struct iwl_priv
*priv
= hw
->priv
;
3881 if (priv
->vif
!= vif
) {
3882 IWL_DEBUG_MAC80211(priv
, "leave - priv->vif != vif\n");
3886 /* handle this temporarily here */
3887 if (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
&&
3888 conf
->changed
& IEEE80211_IFCC_BEACON
) {
3889 struct sk_buff
*beacon
= ieee80211_beacon_get(hw
, vif
);
3892 mutex_lock(&priv
->mutex
);
3893 rc
= iwl3945_mac_beacon_update(hw
, beacon
);
3894 mutex_unlock(&priv
->mutex
);
3899 if (!iwl_is_alive(priv
))
3902 mutex_lock(&priv
->mutex
);
3905 IWL_DEBUG_MAC80211(priv
, "bssid: %pM\n", conf
->bssid
);
3908 * very dubious code was here; the probe filtering flag is never set:
3910 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
3911 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
3914 if (priv
->iw_mode
== NL80211_IFTYPE_AP
) {
3916 conf
->bssid
= priv
->mac_addr
;
3917 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
3918 IWL_DEBUG_MAC80211(priv
, "bssid was set to: %pM\n",
3921 if (priv
->ibss_beacon
)
3922 dev_kfree_skb(priv
->ibss_beacon
);
3924 priv
->ibss_beacon
= ieee80211_beacon_get(hw
, vif
);
3927 if (iwl_is_rfkill(priv
))
3930 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
3931 !is_multicast_ether_addr(conf
->bssid
)) {
3932 /* If there is currently a HW scan going on in the background
3933 * then we need to cancel it else the RXON below will fail. */
3934 if (iwl_scan_cancel_timeout(priv
, 100)) {
3935 IWL_WARN(priv
, "Aborted scan still in progress "
3937 IWL_DEBUG_MAC80211(priv
, "leaving:scan abort failed\n");
3938 mutex_unlock(&priv
->mutex
);
3941 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
3943 /* TODO: Audit driver for usage of these members and see
3944 * if mac80211 deprecates them (priv->bssid looks like it
3945 * shouldn't be there, but I haven't scanned the IBSS code
3946 * to verify) - jpk */
3947 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
3949 if (priv
->iw_mode
== NL80211_IFTYPE_AP
)
3950 iwl3945_config_ap(priv
);
3952 rc
= iwl3945_commit_rxon(priv
);
3953 if ((priv
->iw_mode
== NL80211_IFTYPE_STATION
) && rc
)
3954 iwl3945_add_station(priv
,
3955 priv
->active_rxon
.bssid_addr
, 1, 0);
3959 iwl_scan_cancel_timeout(priv
, 100);
3960 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
3961 iwl3945_commit_rxon(priv
);
3965 IWL_DEBUG_MAC80211(priv
, "leave\n");
3966 mutex_unlock(&priv
->mutex
);
3971 static void iwl3945_mac_remove_interface(struct ieee80211_hw
*hw
,
3972 struct ieee80211_if_init_conf
*conf
)
3974 struct iwl_priv
*priv
= hw
->priv
;
3976 IWL_DEBUG_MAC80211(priv
, "enter\n");
3978 mutex_lock(&priv
->mutex
);
3980 if (iwl_is_ready_rf(priv
)) {
3981 iwl_scan_cancel_timeout(priv
, 100);
3982 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
3983 iwl3945_commit_rxon(priv
);
3985 if (priv
->vif
== conf
->vif
) {
3987 memset(priv
->bssid
, 0, ETH_ALEN
);
3989 mutex_unlock(&priv
->mutex
);
3991 IWL_DEBUG_MAC80211(priv
, "leave\n");
3994 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
3996 static void iwl3945_bss_info_changed(struct ieee80211_hw
*hw
,
3997 struct ieee80211_vif
*vif
,
3998 struct ieee80211_bss_conf
*bss_conf
,
4001 struct iwl_priv
*priv
= hw
->priv
;
4003 IWL_DEBUG_MAC80211(priv
, "changes = 0x%X\n", changes
);
4005 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
4006 IWL_DEBUG_MAC80211(priv
, "ERP_PREAMBLE %d\n",
4007 bss_conf
->use_short_preamble
);
4008 if (bss_conf
->use_short_preamble
)
4009 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
4011 priv
->staging_rxon
.flags
&=
4012 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
4015 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
4016 IWL_DEBUG_MAC80211(priv
, "ERP_CTS %d\n",
4017 bss_conf
->use_cts_prot
);
4018 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
4019 priv
->staging_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
4021 priv
->staging_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
4024 if (changes
& BSS_CHANGED_ASSOC
) {
4025 IWL_DEBUG_MAC80211(priv
, "ASSOC %d\n", bss_conf
->assoc
);
4026 /* This should never happen as this function should
4027 * never be called from interrupt context. */
4028 if (WARN_ON_ONCE(in_interrupt()))
4030 if (bss_conf
->assoc
) {
4031 priv
->assoc_id
= bss_conf
->aid
;
4032 priv
->beacon_int
= bss_conf
->beacon_int
;
4033 priv
->timestamp
= bss_conf
->timestamp
;
4034 priv
->assoc_capability
= bss_conf
->assoc_capability
;
4035 priv
->power_data
.dtim_period
= bss_conf
->dtim_period
;
4036 priv
->next_scan_jiffies
= jiffies
+
4037 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC
;
4038 mutex_lock(&priv
->mutex
);
4039 iwl3945_post_associate(priv
);
4040 mutex_unlock(&priv
->mutex
);
4043 IWL_DEBUG_MAC80211(priv
,
4044 "DISASSOC %d\n", bss_conf
->assoc
);
4046 } else if (changes
&& iwl_is_associated(priv
) && priv
->assoc_id
) {
4047 IWL_DEBUG_MAC80211(priv
,
4048 "Associated Changes %d\n", changes
);
4049 iwl3945_send_rxon_assoc(priv
);
4054 static int iwl3945_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
4055 struct ieee80211_vif
*vif
,
4056 struct ieee80211_sta
*sta
,
4057 struct ieee80211_key_conf
*key
)
4059 struct iwl_priv
*priv
= hw
->priv
;
4062 u8 sta_id
= IWL_INVALID_STATION
;
4065 IWL_DEBUG_MAC80211(priv
, "enter\n");
4067 if (iwl3945_mod_params
.sw_crypto
) {
4068 IWL_DEBUG_MAC80211(priv
, "leave - hwcrypto disabled\n");
4072 addr
= sta
? sta
->addr
: iwl_bcast_addr
;
4073 static_key
= !iwl_is_associated(priv
);
4076 sta_id
= iwl3945_hw_find_station(priv
, addr
);
4077 if (sta_id
== IWL_INVALID_STATION
) {
4078 IWL_DEBUG_MAC80211(priv
, "leave - %pMnot in station map.\n",
4084 mutex_lock(&priv
->mutex
);
4085 iwl_scan_cancel_timeout(priv
, 100);
4086 mutex_unlock(&priv
->mutex
);
4091 ret
= iwl3945_set_static_key(priv
, key
);
4093 ret
= iwl3945_set_dynamic_key(priv
, key
, sta_id
);
4094 IWL_DEBUG_MAC80211(priv
, "enable hwcrypto key\n");
4098 ret
= iwl3945_remove_static_key(priv
);
4100 ret
= iwl3945_clear_sta_key_info(priv
, sta_id
);
4101 IWL_DEBUG_MAC80211(priv
, "disable hwcrypto key\n");
4107 IWL_DEBUG_MAC80211(priv
, "leave\n");
4112 static int iwl3945_mac_conf_tx(struct ieee80211_hw
*hw
, u16 queue
,
4113 const struct ieee80211_tx_queue_params
*params
)
4115 struct iwl_priv
*priv
= hw
->priv
;
4116 unsigned long flags
;
4119 IWL_DEBUG_MAC80211(priv
, "enter\n");
4121 if (!iwl_is_ready_rf(priv
)) {
4122 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
4126 if (queue
>= AC_NUM
) {
4127 IWL_DEBUG_MAC80211(priv
, "leave - queue >= AC_NUM %d\n", queue
);
4131 q
= AC_NUM
- 1 - queue
;
4133 spin_lock_irqsave(&priv
->lock
, flags
);
4135 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
4136 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
4137 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
4138 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
4139 cpu_to_le16((params
->txop
* 32));
4141 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
4142 priv
->qos_data
.qos_active
= 1;
4144 spin_unlock_irqrestore(&priv
->lock
, flags
);
4146 mutex_lock(&priv
->mutex
);
4147 if (priv
->iw_mode
== NL80211_IFTYPE_AP
)
4148 iwl_activate_qos(priv
, 1);
4149 else if (priv
->assoc_id
&& iwl_is_associated(priv
))
4150 iwl_activate_qos(priv
, 0);
4152 mutex_unlock(&priv
->mutex
);
4154 IWL_DEBUG_MAC80211(priv
, "leave\n");
4158 static int iwl3945_mac_get_tx_stats(struct ieee80211_hw
*hw
,
4159 struct ieee80211_tx_queue_stats
*stats
)
4161 struct iwl_priv
*priv
= hw
->priv
;
4163 struct iwl_tx_queue
*txq
;
4164 struct iwl_queue
*q
;
4165 unsigned long flags
;
4167 IWL_DEBUG_MAC80211(priv
, "enter\n");
4169 if (!iwl_is_ready_rf(priv
)) {
4170 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
4174 spin_lock_irqsave(&priv
->lock
, flags
);
4176 for (i
= 0; i
< AC_NUM
; i
++) {
4177 txq
= &priv
->txq
[i
];
4179 avail
= iwl_queue_space(q
);
4181 stats
[i
].len
= q
->n_window
- avail
;
4182 stats
[i
].limit
= q
->n_window
- q
->high_mark
;
4183 stats
[i
].count
= q
->n_window
;
4186 spin_unlock_irqrestore(&priv
->lock
, flags
);
4188 IWL_DEBUG_MAC80211(priv
, "leave\n");
4193 static void iwl3945_mac_reset_tsf(struct ieee80211_hw
*hw
)
4195 struct iwl_priv
*priv
= hw
->priv
;
4196 unsigned long flags
;
4198 mutex_lock(&priv
->mutex
);
4199 IWL_DEBUG_MAC80211(priv
, "enter\n");
4201 iwl_reset_qos(priv
);
4203 spin_lock_irqsave(&priv
->lock
, flags
);
4205 priv
->assoc_capability
= 0;
4207 /* new association get rid of ibss beacon skb */
4208 if (priv
->ibss_beacon
)
4209 dev_kfree_skb(priv
->ibss_beacon
);
4211 priv
->ibss_beacon
= NULL
;
4213 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
4214 priv
->timestamp
= 0;
4215 if ((priv
->iw_mode
== NL80211_IFTYPE_STATION
))
4216 priv
->beacon_int
= 0;
4218 spin_unlock_irqrestore(&priv
->lock
, flags
);
4220 if (!iwl_is_ready_rf(priv
)) {
4221 IWL_DEBUG_MAC80211(priv
, "leave - not ready\n");
4222 mutex_unlock(&priv
->mutex
);
4226 /* we are restarting association process
4227 * clear RXON_FILTER_ASSOC_MSK bit
4229 if (priv
->iw_mode
!= NL80211_IFTYPE_AP
) {
4230 iwl_scan_cancel_timeout(priv
, 100);
4231 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4232 iwl3945_commit_rxon(priv
);
4235 /* Per mac80211.h: This is only used in IBSS mode... */
4236 if (priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) {
4238 IWL_DEBUG_MAC80211(priv
, "leave - not in IBSS\n");
4239 mutex_unlock(&priv
->mutex
);
4245 mutex_unlock(&priv
->mutex
);
4247 IWL_DEBUG_MAC80211(priv
, "leave\n");
4251 static int iwl3945_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
4253 struct iwl_priv
*priv
= hw
->priv
;
4254 unsigned long flags
;
4257 IWL_DEBUG_MAC80211(priv
, "enter\n");
4259 if (!iwl_is_ready_rf(priv
)) {
4260 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
4264 if (priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
) {
4265 IWL_DEBUG_MAC80211(priv
, "leave - not IBSS\n");
4269 spin_lock_irqsave(&priv
->lock
, flags
);
4271 if (priv
->ibss_beacon
)
4272 dev_kfree_skb(priv
->ibss_beacon
);
4274 priv
->ibss_beacon
= skb
;
4277 timestamp
= ((struct ieee80211_mgmt
*)skb
->data
)->u
.beacon
.timestamp
;
4278 priv
->timestamp
= le64_to_cpu(timestamp
);
4280 IWL_DEBUG_MAC80211(priv
, "leave\n");
4281 spin_unlock_irqrestore(&priv
->lock
, flags
);
4283 iwl_reset_qos(priv
);
4285 iwl3945_post_associate(priv
);
4291 /*****************************************************************************
4295 *****************************************************************************/
4297 #ifdef CONFIG_IWLWIFI_DEBUG
4300 * The following adds a new attribute to the sysfs representation
4301 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
4302 * used for controlling the debug level.
4304 * See the level definitions in iwl for details.
4306 static ssize_t
show_debug_level(struct device
*d
,
4307 struct device_attribute
*attr
, char *buf
)
4309 struct iwl_priv
*priv
= d
->driver_data
;
4311 return sprintf(buf
, "0x%08X\n", priv
->debug_level
);
4313 static ssize_t
store_debug_level(struct device
*d
,
4314 struct device_attribute
*attr
,
4315 const char *buf
, size_t count
)
4317 struct iwl_priv
*priv
= d
->driver_data
;
4321 ret
= strict_strtoul(buf
, 0, &val
);
4323 IWL_INFO(priv
, "%s is not in hex or decimal form.\n", buf
);
4325 priv
->debug_level
= val
;
4327 return strnlen(buf
, count
);
4330 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
4331 show_debug_level
, store_debug_level
);
4333 #endif /* CONFIG_IWLWIFI_DEBUG */
4335 static ssize_t
show_temperature(struct device
*d
,
4336 struct device_attribute
*attr
, char *buf
)
4338 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
4340 if (!iwl_is_alive(priv
))
4343 return sprintf(buf
, "%d\n", iwl3945_hw_get_temperature(priv
));
4346 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
4348 static ssize_t
show_tx_power(struct device
*d
,
4349 struct device_attribute
*attr
, char *buf
)
4351 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
4352 return sprintf(buf
, "%d\n", priv
->tx_power_user_lmt
);
4355 static ssize_t
store_tx_power(struct device
*d
,
4356 struct device_attribute
*attr
,
4357 const char *buf
, size_t count
)
4359 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
4360 char *p
= (char *)buf
;
4363 val
= simple_strtoul(p
, &p
, 10);
4365 IWL_INFO(priv
, ": %s is not in decimal form.\n", buf
);
4367 iwl3945_hw_reg_set_txpower(priv
, val
);
4372 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
4374 static ssize_t
show_flags(struct device
*d
,
4375 struct device_attribute
*attr
, char *buf
)
4377 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
4379 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
4382 static ssize_t
store_flags(struct device
*d
,
4383 struct device_attribute
*attr
,
4384 const char *buf
, size_t count
)
4386 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
4387 u32 flags
= simple_strtoul(buf
, NULL
, 0);
4389 mutex_lock(&priv
->mutex
);
4390 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
4391 /* Cancel any currently running scans... */
4392 if (iwl_scan_cancel_timeout(priv
, 100))
4393 IWL_WARN(priv
, "Could not cancel scan.\n");
4395 IWL_DEBUG_INFO(priv
, "Committing rxon.flags = 0x%04X\n",
4397 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
4398 iwl3945_commit_rxon(priv
);
4401 mutex_unlock(&priv
->mutex
);
4406 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
4408 static ssize_t
show_filter_flags(struct device
*d
,
4409 struct device_attribute
*attr
, char *buf
)
4411 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
4413 return sprintf(buf
, "0x%04X\n",
4414 le32_to_cpu(priv
->active_rxon
.filter_flags
));
4417 static ssize_t
store_filter_flags(struct device
*d
,
4418 struct device_attribute
*attr
,
4419 const char *buf
, size_t count
)
4421 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
4422 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
4424 mutex_lock(&priv
->mutex
);
4425 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
4426 /* Cancel any currently running scans... */
4427 if (iwl_scan_cancel_timeout(priv
, 100))
4428 IWL_WARN(priv
, "Could not cancel scan.\n");
4430 IWL_DEBUG_INFO(priv
, "Committing rxon.filter_flags = "
4431 "0x%04X\n", filter_flags
);
4432 priv
->staging_rxon
.filter_flags
=
4433 cpu_to_le32(filter_flags
);
4434 iwl3945_commit_rxon(priv
);
4437 mutex_unlock(&priv
->mutex
);
4442 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
4443 store_filter_flags
);
4445 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
4447 static ssize_t
show_measurement(struct device
*d
,
4448 struct device_attribute
*attr
, char *buf
)
4450 struct iwl_priv
*priv
= dev_get_drvdata(d
);
4451 struct iwl_spectrum_notification measure_report
;
4452 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
4453 u8
*data
= (u8
*)&measure_report
;
4454 unsigned long flags
;
4456 spin_lock_irqsave(&priv
->lock
, flags
);
4457 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
4458 spin_unlock_irqrestore(&priv
->lock
, flags
);
4461 memcpy(&measure_report
, &priv
->measure_report
, size
);
4462 priv
->measurement_status
= 0;
4463 spin_unlock_irqrestore(&priv
->lock
, flags
);
4465 while (size
&& (PAGE_SIZE
- len
)) {
4466 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
4467 PAGE_SIZE
- len
, 1);
4469 if (PAGE_SIZE
- len
)
4473 size
-= min(size
, 16U);
4479 static ssize_t
store_measurement(struct device
*d
,
4480 struct device_attribute
*attr
,
4481 const char *buf
, size_t count
)
4483 struct iwl_priv
*priv
= dev_get_drvdata(d
);
4484 struct ieee80211_measurement_params params
= {
4485 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
4486 .start_time
= cpu_to_le64(priv
->last_tsf
),
4487 .duration
= cpu_to_le16(1),
4489 u8 type
= IWL_MEASURE_BASIC
;
4495 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
4496 channel
= simple_strtoul(p
, NULL
, 0);
4498 params
.channel
= channel
;
4501 while (*p
&& *p
!= ' ')
4504 type
= simple_strtoul(p
+ 1, NULL
, 0);
4507 IWL_DEBUG_INFO(priv
, "Invoking measurement of type %d on "
4508 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
4509 iwl3945_get_measurement(priv
, ¶ms
, type
);
4514 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
4515 show_measurement
, store_measurement
);
4516 #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
4518 static ssize_t
store_retry_rate(struct device
*d
,
4519 struct device_attribute
*attr
,
4520 const char *buf
, size_t count
)
4522 struct iwl_priv
*priv
= dev_get_drvdata(d
);
4524 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
4525 if (priv
->retry_rate
<= 0)
4526 priv
->retry_rate
= 1;
4531 static ssize_t
show_retry_rate(struct device
*d
,
4532 struct device_attribute
*attr
, char *buf
)
4534 struct iwl_priv
*priv
= dev_get_drvdata(d
);
4535 return sprintf(buf
, "%d", priv
->retry_rate
);
4538 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
4542 static ssize_t
store_power_level(struct device
*d
,
4543 struct device_attribute
*attr
,
4544 const char *buf
, size_t count
)
4546 struct iwl_priv
*priv
= dev_get_drvdata(d
);
4551 mutex_lock(&priv
->mutex
);
4553 if (!iwl_is_ready(priv
)) {
4558 ret
= strict_strtoul(buf
, 10, &mode
);
4562 ret
= iwl_power_set_user_mode(priv
, mode
);
4564 IWL_DEBUG_MAC80211(priv
, "failed setting power mode.\n");
4570 mutex_unlock(&priv
->mutex
);
4574 static ssize_t
show_power_level(struct device
*d
,
4575 struct device_attribute
*attr
, char *buf
)
4577 struct iwl_priv
*priv
= dev_get_drvdata(d
);
4578 int mode
= priv
->power_data
.user_power_setting
;
4579 int system
= priv
->power_data
.system_power_setting
;
4580 int level
= priv
->power_data
.power_mode
;
4584 case IWL_POWER_SYS_AUTO
:
4585 p
+= sprintf(p
, "SYSTEM:auto");
4587 case IWL_POWER_SYS_AC
:
4588 p
+= sprintf(p
, "SYSTEM:ac");
4590 case IWL_POWER_SYS_BATTERY
:
4591 p
+= sprintf(p
, "SYSTEM:battery");
4595 p
+= sprintf(p
, "\tMODE:%s", (mode
< IWL_POWER_AUTO
) ?
4597 p
+= sprintf(p
, "\tINDEX:%d", level
);
4598 p
+= sprintf(p
, "\n");
4602 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
,
4603 show_power_level
, store_power_level
);
4605 #define MAX_WX_STRING 80
4607 /* Values are in microsecond */
4608 static const s32 timeout_duration
[] = {
4615 static const s32 period_duration
[] = {
4623 static ssize_t
show_channels(struct device
*d
,
4624 struct device_attribute
*attr
, char *buf
)
4626 /* all this shit doesn't belong into sysfs anyway */
4630 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
4632 static ssize_t
show_statistics(struct device
*d
,
4633 struct device_attribute
*attr
, char *buf
)
4635 struct iwl_priv
*priv
= dev_get_drvdata(d
);
4636 u32 size
= sizeof(struct iwl3945_notif_statistics
);
4637 u32 len
= 0, ofs
= 0;
4638 u8
*data
= (u8
*)&priv
->statistics_39
;
4641 if (!iwl_is_alive(priv
))
4644 mutex_lock(&priv
->mutex
);
4645 rc
= iwl_send_statistics_request(priv
, 0);
4646 mutex_unlock(&priv
->mutex
);
4650 "Error sending statistics request: 0x%08X\n", rc
);
4654 while (size
&& (PAGE_SIZE
- len
)) {
4655 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
4656 PAGE_SIZE
- len
, 1);
4658 if (PAGE_SIZE
- len
)
4662 size
-= min(size
, 16U);
4668 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
4670 static ssize_t
show_antenna(struct device
*d
,
4671 struct device_attribute
*attr
, char *buf
)
4673 struct iwl_priv
*priv
= dev_get_drvdata(d
);
4675 if (!iwl_is_alive(priv
))
4678 return sprintf(buf
, "%d\n", iwl3945_mod_params
.antenna
);
4681 static ssize_t
store_antenna(struct device
*d
,
4682 struct device_attribute
*attr
,
4683 const char *buf
, size_t count
)
4685 struct iwl_priv
*priv __maybe_unused
= dev_get_drvdata(d
);
4691 if (sscanf(buf
, "%1i", &ant
) != 1) {
4692 IWL_DEBUG_INFO(priv
, "not in hex or decimal form.\n");
4696 if ((ant
>= 0) && (ant
<= 2)) {
4697 IWL_DEBUG_INFO(priv
, "Setting antenna select to %d.\n", ant
);
4698 iwl3945_mod_params
.antenna
= (enum iwl3945_antenna
)ant
;
4700 IWL_DEBUG_INFO(priv
, "Bad antenna select value %d.\n", ant
);
4706 static DEVICE_ATTR(antenna
, S_IWUSR
| S_IRUGO
, show_antenna
, store_antenna
);
4708 static ssize_t
show_status(struct device
*d
,
4709 struct device_attribute
*attr
, char *buf
)
4711 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
4712 if (!iwl_is_alive(priv
))
4714 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
4717 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
4719 static ssize_t
dump_error_log(struct device
*d
,
4720 struct device_attribute
*attr
,
4721 const char *buf
, size_t count
)
4723 char *p
= (char *)buf
;
4726 iwl3945_dump_nic_error_log((struct iwl_priv
*)d
->driver_data
);
4728 return strnlen(buf
, count
);
4731 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
4733 static ssize_t
dump_event_log(struct device
*d
,
4734 struct device_attribute
*attr
,
4735 const char *buf
, size_t count
)
4737 char *p
= (char *)buf
;
4740 iwl3945_dump_nic_event_log((struct iwl_priv
*)d
->driver_data
);
4742 return strnlen(buf
, count
);
4745 static DEVICE_ATTR(dump_events
, S_IWUSR
, NULL
, dump_event_log
);
4747 /*****************************************************************************
4749 * driver setup and tear down
4751 *****************************************************************************/
4753 static void iwl3945_setup_deferred_work(struct iwl_priv
*priv
)
4755 priv
->workqueue
= create_singlethread_workqueue(DRV_NAME
);
4757 init_waitqueue_head(&priv
->wait_command_queue
);
4759 INIT_WORK(&priv
->up
, iwl3945_bg_up
);
4760 INIT_WORK(&priv
->restart
, iwl3945_bg_restart
);
4761 INIT_WORK(&priv
->rx_replenish
, iwl3945_bg_rx_replenish
);
4762 INIT_WORK(&priv
->rf_kill
, iwl_bg_rf_kill
);
4763 INIT_WORK(&priv
->beacon_update
, iwl3945_bg_beacon_update
);
4764 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl3945_bg_init_alive_start
);
4765 INIT_DELAYED_WORK(&priv
->alive_start
, iwl3945_bg_alive_start
);
4766 INIT_DELAYED_WORK(&priv
->rfkill_poll
, iwl3945_rfkill_poll
);
4767 INIT_WORK(&priv
->scan_completed
, iwl_bg_scan_completed
);
4768 INIT_WORK(&priv
->request_scan
, iwl3945_bg_request_scan
);
4769 INIT_WORK(&priv
->abort_scan
, iwl_bg_abort_scan
);
4770 INIT_DELAYED_WORK(&priv
->scan_check
, iwl_bg_scan_check
);
4772 iwl3945_hw_setup_deferred_work(priv
);
4774 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
4775 iwl3945_irq_tasklet
, (unsigned long)priv
);
4778 static void iwl3945_cancel_deferred_work(struct iwl_priv
*priv
)
4780 iwl3945_hw_cancel_deferred_work(priv
);
4782 cancel_delayed_work_sync(&priv
->init_alive_start
);
4783 cancel_delayed_work(&priv
->scan_check
);
4784 cancel_delayed_work(&priv
->alive_start
);
4785 cancel_work_sync(&priv
->beacon_update
);
4788 static struct attribute
*iwl3945_sysfs_entries
[] = {
4789 &dev_attr_antenna
.attr
,
4790 &dev_attr_channels
.attr
,
4791 &dev_attr_dump_errors
.attr
,
4792 &dev_attr_dump_events
.attr
,
4793 &dev_attr_flags
.attr
,
4794 &dev_attr_filter_flags
.attr
,
4795 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
4796 &dev_attr_measurement
.attr
,
4798 &dev_attr_power_level
.attr
,
4799 &dev_attr_retry_rate
.attr
,
4800 &dev_attr_statistics
.attr
,
4801 &dev_attr_status
.attr
,
4802 &dev_attr_temperature
.attr
,
4803 &dev_attr_tx_power
.attr
,
4804 #ifdef CONFIG_IWLWIFI_DEBUG
4805 &dev_attr_debug_level
.attr
,
4810 static struct attribute_group iwl3945_attribute_group
= {
4811 .name
= NULL
, /* put in device directory */
4812 .attrs
= iwl3945_sysfs_entries
,
4815 static struct ieee80211_ops iwl3945_hw_ops
= {
4816 .tx
= iwl3945_mac_tx
,
4817 .start
= iwl3945_mac_start
,
4818 .stop
= iwl3945_mac_stop
,
4819 .add_interface
= iwl3945_mac_add_interface
,
4820 .remove_interface
= iwl3945_mac_remove_interface
,
4821 .config
= iwl3945_mac_config
,
4822 .config_interface
= iwl3945_mac_config_interface
,
4823 .configure_filter
= iwl_configure_filter
,
4824 .set_key
= iwl3945_mac_set_key
,
4825 .get_tx_stats
= iwl3945_mac_get_tx_stats
,
4826 .conf_tx
= iwl3945_mac_conf_tx
,
4827 .reset_tsf
= iwl3945_mac_reset_tsf
,
4828 .bss_info_changed
= iwl3945_bss_info_changed
,
4829 .hw_scan
= iwl_mac_hw_scan
4832 static int iwl3945_init_drv(struct iwl_priv
*priv
)
4835 struct iwl3945_eeprom
*eeprom
= (struct iwl3945_eeprom
*)priv
->eeprom
;
4837 priv
->retry_rate
= 1;
4838 priv
->ibss_beacon
= NULL
;
4840 spin_lock_init(&priv
->lock
);
4841 spin_lock_init(&priv
->power_data
.lock
);
4842 spin_lock_init(&priv
->sta_lock
);
4843 spin_lock_init(&priv
->hcmd_lock
);
4845 INIT_LIST_HEAD(&priv
->free_frames
);
4847 mutex_init(&priv
->mutex
);
4849 /* Clear the driver's (not device's) station table */
4850 iwl3945_clear_stations_table(priv
);
4852 priv
->data_retry_limit
= -1;
4853 priv
->ieee_channels
= NULL
;
4854 priv
->ieee_rates
= NULL
;
4855 priv
->band
= IEEE80211_BAND_2GHZ
;
4857 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
4859 iwl_reset_qos(priv
);
4861 priv
->qos_data
.qos_active
= 0;
4862 priv
->qos_data
.qos_cap
.val
= 0;
4864 priv
->rates_mask
= IWL_RATES_MASK
;
4865 /* If power management is turned on, default to CAM mode */
4866 priv
->power_mode
= IWL_POWER_MODE_CAM
;
4867 priv
->tx_power_user_lmt
= IWL_DEFAULT_TX_POWER
;
4869 if (eeprom
->version
< EEPROM_3945_EEPROM_VERSION
) {
4870 IWL_WARN(priv
, "Unsupported EEPROM version: 0x%04X\n",
4875 ret
= iwl_init_channel_map(priv
);
4877 IWL_ERR(priv
, "initializing regulatory failed: %d\n", ret
);
4881 /* Set up txpower settings in driver for all channels */
4882 if (iwl3945_txpower_set_from_eeprom(priv
)) {
4884 goto err_free_channel_map
;
4887 ret
= iwlcore_init_geos(priv
);
4889 IWL_ERR(priv
, "initializing geos failed: %d\n", ret
);
4890 goto err_free_channel_map
;
4892 iwl3945_init_hw_rates(priv
, priv
->ieee_rates
);
4896 err_free_channel_map
:
4897 iwl_free_channel_map(priv
);
4902 static int iwl3945_setup_mac(struct iwl_priv
*priv
)
4905 struct ieee80211_hw
*hw
= priv
->hw
;
4907 hw
->rate_control_algorithm
= "iwl-3945-rs";
4908 hw
->sta_data_size
= sizeof(struct iwl3945_sta_priv
);
4910 /* Tell mac80211 our characteristics */
4911 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
4912 IEEE80211_HW_NOISE_DBM
;
4914 hw
->wiphy
->interface_modes
=
4915 BIT(NL80211_IFTYPE_STATION
) |
4916 BIT(NL80211_IFTYPE_ADHOC
);
4918 hw
->wiphy
->custom_regulatory
= true;
4920 /* Default value; 4 EDCA QOS priorities */
4923 hw
->conf
.beacon_int
= 100;
4925 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
4926 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
4927 &priv
->bands
[IEEE80211_BAND_2GHZ
];
4929 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
4930 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
4931 &priv
->bands
[IEEE80211_BAND_5GHZ
];
4933 ret
= ieee80211_register_hw(priv
->hw
);
4935 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
4938 priv
->mac80211_registered
= 1;
4943 static int iwl3945_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
4946 struct iwl_priv
*priv
;
4947 struct ieee80211_hw
*hw
;
4948 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
4949 struct iwl3945_eeprom
*eeprom
;
4950 unsigned long flags
;
4952 /***********************
4953 * 1. Allocating HW data
4954 * ********************/
4956 /* mac80211 allocates memory for this device instance, including
4957 * space for this driver's private structure */
4958 hw
= iwl_alloc_all(cfg
, &iwl3945_hw_ops
);
4960 printk(KERN_ERR DRV_NAME
"Can not allocate network device\n");
4965 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
4967 if ((iwl3945_mod_params
.num_of_queues
> IWL39_MAX_NUM_QUEUES
) ||
4968 (iwl3945_mod_params
.num_of_queues
< IWL_MIN_NUM_QUEUES
)) {
4970 "invalid queues_num, should be between %d and %d\n",
4971 IWL_MIN_NUM_QUEUES
, IWL39_MAX_NUM_QUEUES
);
4973 goto out_ieee80211_free_hw
;
4977 * Disabling hardware scan means that mac80211 will perform scans
4978 * "the hard way", rather than using device's scan.
4980 if (iwl3945_mod_params
.disable_hw_scan
) {
4981 IWL_DEBUG_INFO(priv
, "Disabling hw_scan\n");
4982 iwl3945_hw_ops
.hw_scan
= NULL
;
4986 IWL_DEBUG_INFO(priv
, "*** LOAD DRIVER ***\n");
4988 priv
->pci_dev
= pdev
;
4990 #ifdef CONFIG_IWLWIFI_DEBUG
4991 priv
->debug_level
= iwl3945_mod_params
.debug
;
4992 atomic_set(&priv
->restrict_refcnt
, 0);
4995 /***************************
4996 * 2. Initializing PCI bus
4997 * *************************/
4998 if (pci_enable_device(pdev
)) {
5000 goto out_ieee80211_free_hw
;
5003 pci_set_master(pdev
);
5005 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
5007 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
5009 IWL_WARN(priv
, "No suitable DMA available.\n");
5010 goto out_pci_disable_device
;
5013 pci_set_drvdata(pdev
, priv
);
5014 err
= pci_request_regions(pdev
, DRV_NAME
);
5016 goto out_pci_disable_device
;
5018 /***********************
5019 * 3. Read REV Register
5020 * ********************/
5021 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
5022 if (!priv
->hw_base
) {
5024 goto out_pci_release_regions
;
5027 IWL_DEBUG_INFO(priv
, "pci_resource_len = 0x%08llx\n",
5028 (unsigned long long) pci_resource_len(pdev
, 0));
5029 IWL_DEBUG_INFO(priv
, "pci_resource_base = %p\n", priv
->hw_base
);
5031 /* We disable the RETRY_TIMEOUT register (0x41) to keep
5032 * PCI Tx retries from interfering with C3 CPU state */
5033 pci_write_config_byte(pdev
, 0x41, 0x00);
5036 err
= priv
->cfg
->ops
->lib
->apm_ops
.init(priv
);
5038 IWL_DEBUG_INFO(priv
, "Failed to init the card\n");
5042 /***********************
5044 * ********************/
5046 /* Read the EEPROM */
5047 err
= iwl_eeprom_init(priv
);
5049 IWL_ERR(priv
, "Unable to init EEPROM\n");
5052 /* MAC Address location in EEPROM same for 3945/4965 */
5053 eeprom
= (struct iwl3945_eeprom
*)priv
->eeprom
;
5054 memcpy(priv
->mac_addr
, eeprom
->mac_address
, ETH_ALEN
);
5055 IWL_DEBUG_INFO(priv
, "MAC address: %pM\n", priv
->mac_addr
);
5056 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
5058 /***********************
5059 * 5. Setup HW Constants
5060 * ********************/
5061 /* Device-specific setup */
5062 if (iwl3945_hw_set_hw_params(priv
)) {
5063 IWL_ERR(priv
, "failed to set hw settings\n");
5064 goto out_eeprom_free
;
5067 /***********************
5069 * ********************/
5071 err
= iwl3945_init_drv(priv
);
5073 IWL_ERR(priv
, "initializing driver failed\n");
5074 goto out_unset_hw_params
;
5077 IWL_INFO(priv
, "Detected Intel Wireless WiFi Link %s\n",
5080 /***********************************
5081 * 7. Initialize Module Parameters
5082 * **********************************/
5084 /* Initialize module parameter values here */
5085 /* Disable radio (SW RF KILL) via parameter when loading driver */
5086 if (iwl3945_mod_params
.disable
) {
5087 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
5088 IWL_DEBUG_INFO(priv
, "Radio disabled.\n");
5092 /***********************
5094 * ********************/
5096 spin_lock_irqsave(&priv
->lock
, flags
);
5097 iwl_disable_interrupts(priv
);
5098 spin_unlock_irqrestore(&priv
->lock
, flags
);
5100 pci_enable_msi(priv
->pci_dev
);
5102 err
= request_irq(priv
->pci_dev
->irq
, iwl_isr
, IRQF_SHARED
,
5105 IWL_ERR(priv
, "Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
5106 goto out_disable_msi
;
5109 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
5111 IWL_ERR(priv
, "failed to create sysfs device attributes\n");
5112 goto out_release_irq
;
5115 iwl_set_rxon_channel(priv
,
5116 &priv
->bands
[IEEE80211_BAND_2GHZ
].channels
[5]);
5117 iwl3945_setup_deferred_work(priv
);
5118 iwl3945_setup_rx_handlers(priv
);
5120 /*********************************
5121 * 9. Setup and Register mac80211
5122 * *******************************/
5124 iwl_enable_interrupts(priv
);
5126 err
= iwl3945_setup_mac(priv
);
5128 goto out_remove_sysfs
;
5130 err
= iwl_rfkill_init(priv
);
5132 IWL_ERR(priv
, "Unable to initialize RFKILL system. "
5133 "Ignoring error: %d\n", err
);
5135 iwl_rfkill_set_hw_state(priv
);
5137 /* Start monitoring the killswitch */
5138 queue_delayed_work(priv
->workqueue
, &priv
->rfkill_poll
,
5144 destroy_workqueue(priv
->workqueue
);
5145 priv
->workqueue
= NULL
;
5146 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
5148 free_irq(priv
->pci_dev
->irq
, priv
);
5150 pci_disable_msi(priv
->pci_dev
);
5151 iwlcore_free_geos(priv
);
5152 iwl_free_channel_map(priv
);
5153 out_unset_hw_params
:
5154 iwl3945_unset_hw_params(priv
);
5156 iwl_eeprom_free(priv
);
5158 pci_iounmap(pdev
, priv
->hw_base
);
5159 out_pci_release_regions
:
5160 pci_release_regions(pdev
);
5161 out_pci_disable_device
:
5162 pci_set_drvdata(pdev
, NULL
);
5163 pci_disable_device(pdev
);
5164 out_ieee80211_free_hw
:
5165 ieee80211_free_hw(priv
->hw
);
5170 static void __devexit
iwl3945_pci_remove(struct pci_dev
*pdev
)
5172 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
5173 unsigned long flags
;
5178 IWL_DEBUG_INFO(priv
, "*** UNLOAD DRIVER ***\n");
5180 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5182 if (priv
->mac80211_registered
) {
5183 ieee80211_unregister_hw(priv
->hw
);
5184 priv
->mac80211_registered
= 0;
5189 /* make sure we flush any pending irq or
5190 * tasklet for the driver
5192 spin_lock_irqsave(&priv
->lock
, flags
);
5193 iwl_disable_interrupts(priv
);
5194 spin_unlock_irqrestore(&priv
->lock
, flags
);
5196 iwl_synchronize_irq(priv
);
5198 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl3945_attribute_group
);
5200 iwl_rfkill_unregister(priv
);
5201 cancel_delayed_work(&priv
->rfkill_poll
);
5203 iwl3945_dealloc_ucode_pci(priv
);
5206 iwl_rx_queue_free(priv
, &priv
->rxq
);
5207 iwl3945_hw_txq_ctx_free(priv
);
5209 iwl3945_unset_hw_params(priv
);
5210 iwl3945_clear_stations_table(priv
);
5212 /*netif_stop_queue(dev); */
5213 flush_workqueue(priv
->workqueue
);
5215 /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
5216 * priv->workqueue... so we can't take down the workqueue
5218 destroy_workqueue(priv
->workqueue
);
5219 priv
->workqueue
= NULL
;
5221 free_irq(pdev
->irq
, priv
);
5222 pci_disable_msi(pdev
);
5224 pci_iounmap(pdev
, priv
->hw_base
);
5225 pci_release_regions(pdev
);
5226 pci_disable_device(pdev
);
5227 pci_set_drvdata(pdev
, NULL
);
5229 iwl_free_channel_map(priv
);
5230 iwlcore_free_geos(priv
);
5232 if (priv
->ibss_beacon
)
5233 dev_kfree_skb(priv
->ibss_beacon
);
5235 ieee80211_free_hw(priv
->hw
);
5240 static int iwl3945_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
5242 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
5244 if (priv
->is_open
) {
5245 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
5246 iwl3945_mac_stop(priv
->hw
);
5249 pci_save_state(pdev
);
5250 pci_disable_device(pdev
);
5251 pci_set_power_state(pdev
, PCI_D3hot
);
5256 static int iwl3945_pci_resume(struct pci_dev
*pdev
)
5258 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
5261 pci_set_power_state(pdev
, PCI_D0
);
5262 ret
= pci_enable_device(pdev
);
5265 pci_restore_state(pdev
);
5268 iwl3945_mac_start(priv
->hw
);
5270 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
5274 #endif /* CONFIG_PM */
5276 /*****************************************************************************
5278 * driver and module entry point
5280 *****************************************************************************/
5282 static struct pci_driver iwl3945_driver
= {
5284 .id_table
= iwl3945_hw_card_ids
,
5285 .probe
= iwl3945_pci_probe
,
5286 .remove
= __devexit_p(iwl3945_pci_remove
),
5288 .suspend
= iwl3945_pci_suspend
,
5289 .resume
= iwl3945_pci_resume
,
5293 static int __init
iwl3945_init(void)
5297 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
5298 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
5300 ret
= iwl3945_rate_control_register();
5302 printk(KERN_ERR DRV_NAME
5303 "Unable to register rate control algorithm: %d\n", ret
);
5307 ret
= pci_register_driver(&iwl3945_driver
);
5309 printk(KERN_ERR DRV_NAME
"Unable to initialize PCI module\n");
5310 goto error_register
;
5316 iwl3945_rate_control_unregister();
5320 static void __exit
iwl3945_exit(void)
5322 pci_unregister_driver(&iwl3945_driver
);
5323 iwl3945_rate_control_unregister();
5326 MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX
));
5328 module_param_named(antenna
, iwl3945_mod_params
.antenna
, int, 0444);
5329 MODULE_PARM_DESC(antenna
, "select antenna (1=Main, 2=Aux, default 0 [both])");
5330 module_param_named(disable
, iwl3945_mod_params
.disable
, int, 0444);
5331 MODULE_PARM_DESC(disable
, "manually disable the radio (default 0 [radio on])");
5332 module_param_named(swcrypto
, iwl3945_mod_params
.sw_crypto
, int, 0444);
5333 MODULE_PARM_DESC(swcrypto
,
5334 "using software crypto (default 1 [software])\n");
5335 module_param_named(debug
, iwl3945_mod_params
.debug
, uint
, 0444);
5336 MODULE_PARM_DESC(debug
, "debug output mask");
5337 module_param_named(disable_hw_scan
, iwl3945_mod_params
.disable_hw_scan
, int, 0444);
5338 MODULE_PARM_DESC(disable_hw_scan
, "disable hardware scanning (default 0)");
5340 module_param_named(queues_num
, iwl3945_mod_params
.num_of_queues
, int, 0444);
5341 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
5343 module_param_named(fw_restart3945
, iwl3945_mod_params
.restart_fw
, int, 0444);
5344 MODULE_PARM_DESC(fw_restart3945
, "restart firmware in case of error");
5346 module_exit(iwl3945_exit
);
5347 module_init(iwl3945_init
);