1 /******************************************************************************
3 * Copyright(c) 2003 - 2008 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 * James P. Ketrenos <ipw2100-admin@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/version.h>
33 #include <linux/init.h>
34 #include <linux/pci.h>
35 #include <linux/dma-mapping.h>
36 #include <linux/delay.h>
37 #include <linux/skbuff.h>
38 #include <linux/netdevice.h>
39 #include <linux/wireless.h>
40 #include <linux/firmware.h>
41 #include <linux/etherdevice.h>
42 #include <linux/if_arp.h>
44 #include <net/mac80211.h>
46 #include <asm/div64.h>
48 #include "iwl-eeprom.h"
52 #include "iwl-helpers.h"
54 #include "iwl-calib.h"
57 /******************************************************************************
61 ******************************************************************************/
64 * module name, copyright, version, etc.
65 * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
68 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link 4965AGN driver for Linux"
70 #ifdef CONFIG_IWLWIFI_DEBUG
76 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
82 #define DRV_VERSION IWLWIFI_VERSION VD VS
85 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
86 MODULE_VERSION(DRV_VERSION
);
87 MODULE_AUTHOR(DRV_COPYRIGHT
);
88 MODULE_LICENSE("GPL");
90 static const struct ieee80211_supported_band
*iwl_get_hw_mode(
91 struct iwl_priv
*priv
, enum ieee80211_band band
)
93 return priv
->hw
->wiphy
->bands
[band
];
96 static int iwl4965_is_empty_essid(const char *essid
, int essid_len
)
98 /* Single white space is for Linksys APs */
99 if (essid_len
== 1 && essid
[0] == ' ')
102 /* Otherwise, if the entire essid is 0, we assume it is hidden */
105 if (essid
[essid_len
] != '\0')
112 static const char *iwl4965_escape_essid(const char *essid
, u8 essid_len
)
114 static char escaped
[IW_ESSID_MAX_SIZE
* 2 + 1];
115 const char *s
= essid
;
118 if (iwl4965_is_empty_essid(essid
, essid_len
)) {
119 memcpy(escaped
, "<hidden>", sizeof("<hidden>"));
123 essid_len
= min(essid_len
, (u8
) IW_ESSID_MAX_SIZE
);
124 while (essid_len
--) {
136 /*************** STATION TABLE MANAGEMENT ****
137 * mac80211 should be examined to determine if sta_info is duplicating
138 * the functionality provided here
141 /**************************************************************/
143 #if 0 /* temporary disable till we add real remove station */
145 * iwl4965_remove_station - Remove driver's knowledge of station.
147 * NOTE: This does not remove station from device's station table.
149 static u8
iwl4965_remove_station(struct iwl_priv
*priv
, const u8
*addr
, int is_ap
)
151 int index
= IWL_INVALID_STATION
;
155 spin_lock_irqsave(&priv
->sta_lock
, flags
);
159 else if (is_broadcast_ether_addr(addr
))
160 index
= priv
->hw_params
.bcast_sta_id
;
162 for (i
= IWL_STA_ID
; i
< priv
->hw_params
.max_stations
; i
++)
163 if (priv
->stations
[i
].used
&&
164 !compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
170 if (unlikely(index
== IWL_INVALID_STATION
))
173 if (priv
->stations
[index
].used
) {
174 priv
->stations
[index
].used
= 0;
175 priv
->num_stations
--;
178 BUG_ON(priv
->num_stations
< 0);
181 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
188 static void iwl4965_set_rxon_hwcrypto(struct iwl_priv
*priv
, int hw_decrypt
)
190 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
193 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
195 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
200 * iwl4965_check_rxon_cmd - validate RXON structure is valid
202 * NOTE: This is really only useful during development and can eventually
203 * be #ifdef'd out once the driver is stable and folks aren't actively
206 static int iwl4965_check_rxon_cmd(struct iwl_rxon_cmd
*rxon
)
211 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
212 error
|= le32_to_cpu(rxon
->flags
&
213 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
214 RXON_FLG_RADAR_DETECT_MSK
));
216 IWL_WARNING("check 24G fields %d | %d\n",
219 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
220 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
222 IWL_WARNING("check 52 fields %d | %d\n",
224 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
226 IWL_WARNING("check 52 CCK %d | %d\n",
229 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
231 IWL_WARNING("check mac addr %d | %d\n", counter
++, error
);
233 /* make sure basic rates 6Mbps and 1Mbps are supported */
234 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
235 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
237 IWL_WARNING("check basic rate %d | %d\n", counter
++, error
);
239 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
241 IWL_WARNING("check assoc id %d | %d\n", counter
++, error
);
243 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
244 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
246 IWL_WARNING("check CCK and short slot %d | %d\n",
249 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
250 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
252 IWL_WARNING("check CCK & auto detect %d | %d\n",
255 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
256 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
258 IWL_WARNING("check TGG and auto detect %d | %d\n",
262 IWL_WARNING("Tuning to channel %d\n",
263 le16_to_cpu(rxon
->channel
));
266 IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
273 * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
274 * @priv: staging_rxon is compared to active_rxon
276 * If the RXON structure is changing enough to require a new tune,
277 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
278 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
280 static int iwl4965_full_rxon_required(struct iwl_priv
*priv
)
283 /* These items are only settable from the full RXON command */
284 if (!(priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ||
285 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
286 priv
->active_rxon
.bssid_addr
) ||
287 compare_ether_addr(priv
->staging_rxon
.node_addr
,
288 priv
->active_rxon
.node_addr
) ||
289 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
290 priv
->active_rxon
.wlap_bssid_addr
) ||
291 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
292 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
293 (priv
->staging_rxon
.air_propagation
!=
294 priv
->active_rxon
.air_propagation
) ||
295 (priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
!=
296 priv
->active_rxon
.ofdm_ht_single_stream_basic_rates
) ||
297 (priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
!=
298 priv
->active_rxon
.ofdm_ht_dual_stream_basic_rates
) ||
299 (priv
->staging_rxon
.rx_chain
!= priv
->active_rxon
.rx_chain
) ||
300 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
303 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
304 * be updated with the RXON_ASSOC command -- however only some
305 * flag transitions are allowed using RXON_ASSOC */
307 /* Check if we are not switching bands */
308 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
309 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
312 /* Check if we are switching association toggle */
313 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
314 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
321 * iwl4965_commit_rxon - commit staging_rxon to hardware
323 * The RXON command in staging_rxon is committed to the hardware and
324 * the active_rxon structure is updated with the new data. This
325 * function correctly transitions out of the RXON_ASSOC_MSK state if
326 * a HW tune is required based on the RXON structure changes.
328 static int iwl4965_commit_rxon(struct iwl_priv
*priv
)
330 /* cast away the const for active_rxon in this function */
331 struct iwl_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
332 DECLARE_MAC_BUF(mac
);
335 if (!iwl_is_alive(priv
))
338 /* always get timestamp with Rx frame */
339 priv
->staging_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
341 rc
= iwl4965_check_rxon_cmd(&priv
->staging_rxon
);
343 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
347 /* If we don't need to send a full RXON, we can use
348 * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
349 * and other flags for the current radio configuration. */
350 if (!iwl4965_full_rxon_required(priv
)) {
351 rc
= iwl_send_rxon_assoc(priv
);
353 IWL_ERROR("Error setting RXON_ASSOC "
354 "configuration (%d).\n", rc
);
358 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
363 /* station table will be cleared */
364 priv
->assoc_station_added
= 0;
366 /* If we are currently associated and the new config requires
367 * an RXON_ASSOC and the new config wants the associated mask enabled,
368 * we must clear the associated from the active configuration
369 * before we apply the new config */
370 if (iwl_is_associated(priv
) &&
371 (priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
)) {
372 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
373 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
375 rc
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
376 sizeof(struct iwl_rxon_cmd
),
379 /* If the mask clearing failed then we set
380 * active_rxon back to what it was previously */
382 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
383 IWL_ERROR("Error clearing ASSOC_MSK on current "
384 "configuration (%d).\n", rc
);
389 IWL_DEBUG_INFO("Sending RXON\n"
390 "* with%s RXON_FILTER_ASSOC_MSK\n"
393 ((priv
->staging_rxon
.filter_flags
&
394 RXON_FILTER_ASSOC_MSK
) ? "" : "out"),
395 le16_to_cpu(priv
->staging_rxon
.channel
),
396 print_mac(mac
, priv
->staging_rxon
.bssid_addr
));
398 iwl4965_set_rxon_hwcrypto(priv
, !priv
->hw_params
.sw_crypto
);
399 /* Apply the new configuration */
400 rc
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
401 sizeof(struct iwl_rxon_cmd
), &priv
->staging_rxon
);
403 IWL_ERROR("Error setting new configuration (%d).\n", rc
);
407 iwlcore_clear_stations_table(priv
);
409 if (!priv
->error_recovering
)
410 priv
->start_calib
= 0;
412 iwl_init_sensitivity(priv
);
414 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
416 /* If we issue a new RXON command which required a tune then we must
417 * send a new TXPOWER command or we won't be able to Tx any frames */
418 rc
= iwl4965_hw_reg_send_txpower(priv
);
420 IWL_ERROR("Error setting Tx power (%d).\n", rc
);
424 /* Add the broadcast address so we can send broadcast frames */
425 if (iwl_rxon_add_station(priv
, iwl_bcast_addr
, 0) ==
426 IWL_INVALID_STATION
) {
427 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
431 /* If we have set the ASSOC_MSK and we are in BSS mode then
432 * add the IWL_AP_ID to the station rate table */
433 if (iwl_is_associated(priv
) &&
434 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)) {
435 if (iwl_rxon_add_station(priv
, priv
->active_rxon
.bssid_addr
, 1)
436 == IWL_INVALID_STATION
) {
437 IWL_ERROR("Error adding AP address for transmit.\n");
440 priv
->assoc_station_added
= 1;
441 if (priv
->default_wep_key
&&
442 iwl_send_static_wepkey_cmd(priv
, 0))
443 IWL_ERROR("Could not send WEP static key.\n");
449 void iwl4965_update_chain_flags(struct iwl_priv
*priv
)
452 iwl_set_rxon_chain(priv
);
453 iwl4965_commit_rxon(priv
);
456 static int iwl4965_send_bt_config(struct iwl_priv
*priv
)
458 struct iwl4965_bt_cmd bt_cmd
= {
466 return iwl_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
467 sizeof(struct iwl4965_bt_cmd
), &bt_cmd
);
470 static int iwl4965_send_scan_abort(struct iwl_priv
*priv
)
473 struct iwl_rx_packet
*res
;
474 struct iwl_host_cmd cmd
= {
475 .id
= REPLY_SCAN_ABORT_CMD
,
476 .meta
.flags
= CMD_WANT_SKB
,
479 /* If there isn't a scan actively going on in the hardware
480 * then we are in between scan bands and not actually
481 * actively scanning, so don't send the abort command */
482 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
483 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
487 ret
= iwl_send_cmd_sync(priv
, &cmd
);
489 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
493 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
494 if (res
->u
.status
!= CAN_ABORT_STATUS
) {
495 /* The scan abort will return 1 for success or
496 * 2 for "failure". A failure condition can be
497 * due to simply not being in an active scan which
498 * can occur if we send the scan abort before we
499 * the microcode has notified us that a scan is
501 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res
->u
.status
);
502 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
503 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
506 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
514 * Use: Sets the device's internal card state to enable, disable, or halt
516 * When in the 'enable' state the card operates as normal.
517 * When in the 'disable' state, the card enters into a low power mode.
518 * When in the 'halt' state, the card is shut down and must be fully
519 * restarted to come back on.
521 static int iwl4965_send_card_state(struct iwl_priv
*priv
, u32 flags
, u8 meta_flag
)
523 struct iwl_host_cmd cmd
= {
524 .id
= REPLY_CARD_STATE_CMD
,
527 .meta
.flags
= meta_flag
,
530 return iwl_send_cmd(priv
, &cmd
);
533 static void iwl_clear_free_frames(struct iwl_priv
*priv
)
535 struct list_head
*element
;
537 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
540 while (!list_empty(&priv
->free_frames
)) {
541 element
= priv
->free_frames
.next
;
543 kfree(list_entry(element
, struct iwl_frame
, list
));
544 priv
->frames_count
--;
547 if (priv
->frames_count
) {
548 IWL_WARNING("%d frames still in use. Did we lose one?\n",
550 priv
->frames_count
= 0;
554 static struct iwl_frame
*iwl_get_free_frame(struct iwl_priv
*priv
)
556 struct iwl_frame
*frame
;
557 struct list_head
*element
;
558 if (list_empty(&priv
->free_frames
)) {
559 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
561 IWL_ERROR("Could not allocate frame!\n");
565 priv
->frames_count
++;
569 element
= priv
->free_frames
.next
;
571 return list_entry(element
, struct iwl_frame
, list
);
574 static void iwl_free_frame(struct iwl_priv
*priv
, struct iwl_frame
*frame
)
576 memset(frame
, 0, sizeof(*frame
));
577 list_add(&frame
->list
, &priv
->free_frames
);
580 unsigned int iwl4965_fill_beacon_frame(struct iwl_priv
*priv
,
581 struct ieee80211_hdr
*hdr
,
582 const u8
*dest
, int left
)
585 if (!iwl_is_associated(priv
) || !priv
->ibss_beacon
||
586 ((priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) &&
587 (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
)))
590 if (priv
->ibss_beacon
->len
> left
)
593 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
595 return priv
->ibss_beacon
->len
;
598 static u8
iwl4965_rate_get_lowest_plcp(struct iwl_priv
*priv
)
604 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
605 rate_mask
= priv
->active_rate_basic
& 0xF;
607 rate_mask
= priv
->active_rate_basic
& 0xFF0;
609 /* Find lowest valid rate */
610 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
611 i
= iwl_rates
[i
].next_ieee
) {
612 if (rate_mask
& (1 << i
))
613 return iwl_rates
[i
].plcp
;
616 /* No valid rate was found. Assign the lowest one */
617 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
618 return IWL_RATE_1M_PLCP
;
620 return IWL_RATE_6M_PLCP
;
623 static int iwl4965_send_beacon_cmd(struct iwl_priv
*priv
)
625 struct iwl_frame
*frame
;
626 unsigned int frame_size
;
630 frame
= iwl_get_free_frame(priv
);
633 IWL_ERROR("Could not obtain free frame buffer for beacon "
638 rate
= iwl4965_rate_get_lowest_plcp(priv
);
640 frame_size
= iwl4965_hw_get_beacon_cmd(priv
, frame
, rate
);
642 rc
= iwl_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
645 iwl_free_frame(priv
, frame
);
650 /******************************************************************************
652 * Misc. internal state and helper functions
654 ******************************************************************************/
657 * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field
659 * return : set the bit for each supported rate insert in ie
661 static u16
iwl4965_supported_rate_to_ie(u8
*ie
, u16 supported_rate
,
662 u16 basic_rate
, int *left
)
664 u16 ret_rates
= 0, bit
;
669 for (bit
= 1, i
= 0; i
< IWL_RATE_COUNT
; i
++, bit
<<= 1) {
670 if (bit
& supported_rate
) {
672 rates
[*cnt
] = iwl_rates
[i
].ieee
|
673 ((bit
& basic_rate
) ? 0x80 : 0x00);
677 (*cnt
>= IWL_SUPPORTED_RATES_IE_LEN
))
685 #ifdef CONFIG_IWL4965_HT
686 static void iwl4965_ht_conf(struct iwl_priv
*priv
,
687 struct ieee80211_bss_conf
*bss_conf
)
689 struct ieee80211_ht_info
*ht_conf
= bss_conf
->ht_conf
;
690 struct ieee80211_ht_bss_info
*ht_bss_conf
= bss_conf
->ht_bss_conf
;
691 struct iwl_ht_info
*iwl_conf
= &priv
->current_ht_config
;
693 IWL_DEBUG_MAC80211("enter: \n");
695 iwl_conf
->is_ht
= bss_conf
->assoc_ht
;
697 if (!iwl_conf
->is_ht
)
700 priv
->ps_mode
= (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
702 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_20
)
703 iwl_conf
->sgf
|= HT_SHORT_GI_20MHZ
;
704 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_40
)
705 iwl_conf
->sgf
|= HT_SHORT_GI_40MHZ
;
707 iwl_conf
->is_green_field
= !!(ht_conf
->cap
& IEEE80211_HT_CAP_GRN_FLD
);
708 iwl_conf
->max_amsdu_size
=
709 !!(ht_conf
->cap
& IEEE80211_HT_CAP_MAX_AMSDU
);
711 iwl_conf
->supported_chan_width
=
712 !!(ht_conf
->cap
& IEEE80211_HT_CAP_SUP_WIDTH
);
713 iwl_conf
->extension_chan_offset
=
714 ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_SEC_OFFSET
;
715 /* If no above or below channel supplied disable FAT channel */
716 if (iwl_conf
->extension_chan_offset
!= IWL_EXT_CHANNEL_OFFSET_ABOVE
&&
717 iwl_conf
->extension_chan_offset
!= IWL_EXT_CHANNEL_OFFSET_BELOW
)
718 iwl_conf
->supported_chan_width
= 0;
720 iwl_conf
->tx_mimo_ps_mode
=
721 (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
722 memcpy(iwl_conf
->supp_mcs_set
, ht_conf
->supp_mcs_set
, 16);
724 iwl_conf
->control_channel
= ht_bss_conf
->primary_channel
;
725 iwl_conf
->tx_chan_width
=
726 !!(ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_WIDTH
);
727 iwl_conf
->ht_protection
=
728 ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_HT_PROTECTION
;
729 iwl_conf
->non_GF_STA_present
=
730 !!(ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_NON_GF_STA_PRSNT
);
732 IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf
->control_channel
);
733 IWL_DEBUG_MAC80211("leave\n");
736 static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band
*sband
,
739 struct ieee80211_ht_cap
*ht_cap
;
741 if (!sband
|| !sband
->ht_info
.ht_supported
)
744 if (*left
< sizeof(struct ieee80211_ht_cap
))
747 *pos
++ = sizeof(struct ieee80211_ht_cap
);
748 ht_cap
= (struct ieee80211_ht_cap
*) pos
;
750 ht_cap
->cap_info
= cpu_to_le16(sband
->ht_info
.cap
);
751 memcpy(ht_cap
->supp_mcs_set
, sband
->ht_info
.supp_mcs_set
, 16);
752 ht_cap
->ampdu_params_info
=
753 (sband
->ht_info
.ampdu_factor
& IEEE80211_HT_CAP_AMPDU_FACTOR
) |
754 ((sband
->ht_info
.ampdu_density
<< 2) &
755 IEEE80211_HT_CAP_AMPDU_DENSITY
);
756 *left
-= sizeof(struct ieee80211_ht_cap
);
759 static inline void iwl4965_ht_conf(struct iwl_priv
*priv
,
760 struct ieee80211_bss_conf
*bss_conf
)
763 static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band
*sband
,
771 * iwl4965_fill_probe_req - fill in all required fields and IE for probe request
773 static u16
iwl4965_fill_probe_req(struct iwl_priv
*priv
,
774 enum ieee80211_band band
,
775 struct ieee80211_mgmt
*frame
,
776 int left
, int is_direct
)
780 u16 active_rates
, ret_rates
, cck_rates
, active_rate_basic
;
781 const struct ieee80211_supported_band
*sband
=
782 iwl_get_hw_mode(priv
, band
);
784 /* Make sure there is enough space for the probe request,
785 * two mandatory IEs and the data */
791 frame
->frame_control
= cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
);
792 memcpy(frame
->da
, iwl_bcast_addr
, ETH_ALEN
);
793 memcpy(frame
->sa
, priv
->mac_addr
, ETH_ALEN
);
794 memcpy(frame
->bssid
, iwl_bcast_addr
, ETH_ALEN
);
797 /* fill in our indirect SSID IE */
804 pos
= &(frame
->u
.probe_req
.variable
[0]);
805 *pos
++ = WLAN_EID_SSID
;
808 /* fill in our direct SSID IE... */
811 left
-= 2 + priv
->essid_len
;
814 /* ... fill it in... */
815 *pos
++ = WLAN_EID_SSID
;
816 *pos
++ = priv
->essid_len
;
817 memcpy(pos
, priv
->essid
, priv
->essid_len
);
818 pos
+= priv
->essid_len
;
819 len
+= 2 + priv
->essid_len
;
822 /* fill in supported rate */
828 /* ... fill it in... */
829 *pos
++ = WLAN_EID_SUPP_RATES
;
832 /* exclude 60M rate */
833 active_rates
= priv
->rates_mask
;
834 active_rates
&= ~IWL_RATE_60M_MASK
;
836 active_rate_basic
= active_rates
& IWL_BASIC_RATES_MASK
;
838 cck_rates
= IWL_CCK_RATES_MASK
& active_rates
;
839 ret_rates
= iwl4965_supported_rate_to_ie(pos
, cck_rates
,
840 active_rate_basic
, &left
);
841 active_rates
&= ~ret_rates
;
843 ret_rates
= iwl4965_supported_rate_to_ie(pos
, active_rates
,
844 active_rate_basic
, &left
);
845 active_rates
&= ~ret_rates
;
849 if (active_rates
== 0)
852 /* fill in supported extended rate */
857 /* ... fill it in... */
858 *pos
++ = WLAN_EID_EXT_SUPP_RATES
;
860 iwl4965_supported_rate_to_ie(pos
, active_rates
,
861 active_rate_basic
, &left
);
871 *pos
++ = WLAN_EID_HT_CAPABILITY
;
874 iwl_ht_cap_to_ie(sband
, pos
, &left
);
884 static int iwl4965_send_qos_params_command(struct iwl_priv
*priv
,
885 struct iwl4965_qosparam_cmd
*qos
)
888 return iwl_send_cmd_pdu(priv
, REPLY_QOS_PARAM
,
889 sizeof(struct iwl4965_qosparam_cmd
), qos
);
892 static void iwl4965_activate_qos(struct iwl_priv
*priv
, u8 force
)
896 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
899 if (!priv
->qos_data
.qos_enable
)
902 spin_lock_irqsave(&priv
->lock
, flags
);
903 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
905 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
906 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
907 priv
->qos_data
.def_qos_parm
.qos_flags
|=
908 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
909 if (priv
->qos_data
.qos_active
)
910 priv
->qos_data
.def_qos_parm
.qos_flags
|=
911 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
913 #ifdef CONFIG_IWL4965_HT
914 if (priv
->current_ht_config
.is_ht
)
915 priv
->qos_data
.def_qos_parm
.qos_flags
|= QOS_PARAM_FLG_TGN_MSK
;
916 #endif /* CONFIG_IWL4965_HT */
918 spin_unlock_irqrestore(&priv
->lock
, flags
);
920 if (force
|| iwl_is_associated(priv
)) {
921 IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
922 priv
->qos_data
.qos_active
,
923 priv
->qos_data
.def_qos_parm
.qos_flags
);
925 iwl4965_send_qos_params_command(priv
,
926 &(priv
->qos_data
.def_qos_parm
));
930 int iwl4965_is_network_packet(struct iwl_priv
*priv
, struct ieee80211_hdr
*header
)
932 /* Filter incoming packets to determine if they are targeted toward
933 * this network, discarding packets coming from ourselves */
934 switch (priv
->iw_mode
) {
935 case IEEE80211_IF_TYPE_IBSS
: /* Header: Dest. | Source | BSSID */
936 /* packets from our adapter are dropped (echo) */
937 if (!compare_ether_addr(header
->addr2
, priv
->mac_addr
))
939 /* {broad,multi}cast packets to our IBSS go through */
940 if (is_multicast_ether_addr(header
->addr1
))
941 return !compare_ether_addr(header
->addr3
, priv
->bssid
);
942 /* packets to our adapter go through */
943 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
944 case IEEE80211_IF_TYPE_STA
: /* Header: Dest. | AP{BSSID} | Source */
945 /* packets from our adapter are dropped (echo) */
946 if (!compare_ether_addr(header
->addr3
, priv
->mac_addr
))
948 /* {broad,multi}cast packets to our BSS go through */
949 if (is_multicast_ether_addr(header
->addr1
))
950 return !compare_ether_addr(header
->addr2
, priv
->bssid
);
951 /* packets to our adapter go through */
952 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
960 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
962 static const char *iwl4965_get_tx_fail_reason(u32 status
)
964 switch (status
& TX_STATUS_MSK
) {
965 case TX_STATUS_SUCCESS
:
967 TX_STATUS_ENTRY(SHORT_LIMIT
);
968 TX_STATUS_ENTRY(LONG_LIMIT
);
969 TX_STATUS_ENTRY(FIFO_UNDERRUN
);
970 TX_STATUS_ENTRY(MGMNT_ABORT
);
971 TX_STATUS_ENTRY(NEXT_FRAG
);
972 TX_STATUS_ENTRY(LIFE_EXPIRE
);
973 TX_STATUS_ENTRY(DEST_PS
);
974 TX_STATUS_ENTRY(ABORTED
);
975 TX_STATUS_ENTRY(BT_RETRY
);
976 TX_STATUS_ENTRY(STA_INVALID
);
977 TX_STATUS_ENTRY(FRAG_DROPPED
);
978 TX_STATUS_ENTRY(TID_DISABLE
);
979 TX_STATUS_ENTRY(FRAME_FLUSHED
);
980 TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL
);
981 TX_STATUS_ENTRY(TX_LOCKED
);
982 TX_STATUS_ENTRY(NO_BEACON_ON_RADAR
);
989 * iwl4965_scan_cancel - Cancel any currently executing HW scan
991 * NOTE: priv->mutex is not required before calling this function
993 static int iwl4965_scan_cancel(struct iwl_priv
*priv
)
995 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
996 clear_bit(STATUS_SCANNING
, &priv
->status
);
1000 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
1001 if (!test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
1002 IWL_DEBUG_SCAN("Queuing scan abort.\n");
1003 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1004 queue_work(priv
->workqueue
, &priv
->abort_scan
);
1007 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
1009 return test_bit(STATUS_SCANNING
, &priv
->status
);
1016 * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan
1017 * @ms: amount of time to wait (in milliseconds) for scan to abort
1019 * NOTE: priv->mutex must be held before calling this function
1021 static int iwl4965_scan_cancel_timeout(struct iwl_priv
*priv
, unsigned long ms
)
1023 unsigned long now
= jiffies
;
1026 ret
= iwl4965_scan_cancel(priv
);
1028 mutex_unlock(&priv
->mutex
);
1029 while (!time_after(jiffies
, now
+ msecs_to_jiffies(ms
)) &&
1030 test_bit(STATUS_SCANNING
, &priv
->status
))
1032 mutex_lock(&priv
->mutex
);
1034 return test_bit(STATUS_SCANNING
, &priv
->status
);
1040 static void iwl4965_sequence_reset(struct iwl_priv
*priv
)
1042 /* Reset ieee stats */
1044 /* We don't reset the net_device_stats (ieee->stats) on
1047 priv
->last_seq_num
= -1;
1048 priv
->last_frag_num
= -1;
1049 priv
->last_packet_time
= 0;
1051 iwl4965_scan_cancel(priv
);
1054 #define MAX_UCODE_BEACON_INTERVAL 4096
1055 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
1057 static __le16
iwl4965_adjust_beacon_interval(u16 beacon_val
)
1060 u16 beacon_factor
= 0;
1063 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
1064 / MAX_UCODE_BEACON_INTERVAL
;
1065 new_val
= beacon_val
/ beacon_factor
;
1067 return cpu_to_le16(new_val
);
1070 static void iwl4965_setup_rxon_timing(struct iwl_priv
*priv
)
1072 u64 interval_tm_unit
;
1074 unsigned long flags
;
1075 struct ieee80211_conf
*conf
= NULL
;
1078 conf
= ieee80211_get_hw_conf(priv
->hw
);
1080 spin_lock_irqsave(&priv
->lock
, flags
);
1081 priv
->rxon_timing
.timestamp
.dw
[1] = cpu_to_le32(priv
->timestamp
>> 32);
1082 priv
->rxon_timing
.timestamp
.dw
[0] =
1083 cpu_to_le32(priv
->timestamp
& 0xFFFFFFFF);
1085 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
1087 tsf
= priv
->timestamp
;
1089 beacon_int
= priv
->beacon_int
;
1090 spin_unlock_irqrestore(&priv
->lock
, flags
);
1092 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) {
1093 if (beacon_int
== 0) {
1094 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
1095 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
1097 priv
->rxon_timing
.beacon_interval
=
1098 cpu_to_le16(beacon_int
);
1099 priv
->rxon_timing
.beacon_interval
=
1100 iwl4965_adjust_beacon_interval(
1101 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
1104 priv
->rxon_timing
.atim_window
= 0;
1106 priv
->rxon_timing
.beacon_interval
=
1107 iwl4965_adjust_beacon_interval(conf
->beacon_int
);
1108 /* TODO: we need to get atim_window from upper stack
1109 * for now we set to 0 */
1110 priv
->rxon_timing
.atim_window
= 0;
1114 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
1115 result
= do_div(tsf
, interval_tm_unit
);
1116 priv
->rxon_timing
.beacon_init_val
=
1117 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
1120 ("beacon interval %d beacon timer %d beacon tim %d\n",
1121 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
1122 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
1123 le16_to_cpu(priv
->rxon_timing
.atim_window
));
1126 static int iwl4965_scan_initiate(struct iwl_priv
*priv
)
1128 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
1129 IWL_ERROR("APs don't scan.\n");
1133 if (!iwl_is_ready_rf(priv
)) {
1134 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
1138 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
1139 IWL_DEBUG_SCAN("Scan already in progress.\n");
1143 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
1144 IWL_DEBUG_SCAN("Scan request while abort pending. "
1149 IWL_DEBUG_INFO("Starting scan...\n");
1150 priv
->scan_bands
= 2;
1151 set_bit(STATUS_SCANNING
, &priv
->status
);
1152 priv
->scan_start
= jiffies
;
1153 priv
->scan_pass_start
= priv
->scan_start
;
1155 queue_work(priv
->workqueue
, &priv
->request_scan
);
1161 static void iwl4965_set_flags_for_phymode(struct iwl_priv
*priv
,
1162 enum ieee80211_band band
)
1164 if (band
== IEEE80211_BAND_5GHZ
) {
1165 priv
->staging_rxon
.flags
&=
1166 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
1167 | RXON_FLG_CCK_MSK
);
1168 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1170 /* Copied from iwl4965_post_associate() */
1171 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
1172 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1174 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1176 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
1177 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1179 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
1180 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
1181 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
1186 * initialize rxon structure with default values from eeprom
1188 static void iwl4965_connection_init_rx_config(struct iwl_priv
*priv
)
1190 const struct iwl_channel_info
*ch_info
;
1192 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
1194 switch (priv
->iw_mode
) {
1195 case IEEE80211_IF_TYPE_AP
:
1196 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
1199 case IEEE80211_IF_TYPE_STA
:
1200 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
1201 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
1204 case IEEE80211_IF_TYPE_IBSS
:
1205 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
1206 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
1207 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
1208 RXON_FILTER_ACCEPT_GRP_MSK
;
1211 case IEEE80211_IF_TYPE_MNTR
:
1212 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
1213 priv
->staging_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
1214 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
1217 IWL_ERROR("Unsupported interface type %d\n", priv
->iw_mode
);
1222 /* TODO: Figure out when short_preamble would be set and cache from
1224 if (!hw_to_local(priv
->hw
)->short_preamble
)
1225 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
1227 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
1230 ch_info
= iwl_get_channel_info(priv
, priv
->band
,
1231 le16_to_cpu(priv
->staging_rxon
.channel
));
1234 ch_info
= &priv
->channel_info
[0];
1237 * in some case A channels are all non IBSS
1238 * in this case force B/G channel
1240 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) &&
1241 !(is_channel_ibss(ch_info
)))
1242 ch_info
= &priv
->channel_info
[0];
1244 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
1245 priv
->band
= ch_info
->band
;
1247 iwl4965_set_flags_for_phymode(priv
, priv
->band
);
1249 priv
->staging_rxon
.ofdm_basic_rates
=
1250 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
1251 priv
->staging_rxon
.cck_basic_rates
=
1252 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
1254 priv
->staging_rxon
.flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK
|
1255 RXON_FLG_CHANNEL_MODE_PURE_40_MSK
);
1256 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
1257 memcpy(priv
->staging_rxon
.wlap_bssid_addr
, priv
->mac_addr
, ETH_ALEN
);
1258 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
= 0xff;
1259 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
= 0xff;
1260 iwl_set_rxon_chain(priv
);
1263 static int iwl4965_set_mode(struct iwl_priv
*priv
, int mode
)
1265 if (mode
== IEEE80211_IF_TYPE_IBSS
) {
1266 const struct iwl_channel_info
*ch_info
;
1268 ch_info
= iwl_get_channel_info(priv
,
1270 le16_to_cpu(priv
->staging_rxon
.channel
));
1272 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
1273 IWL_ERROR("channel %d not IBSS channel\n",
1274 le16_to_cpu(priv
->staging_rxon
.channel
));
1279 priv
->iw_mode
= mode
;
1281 iwl4965_connection_init_rx_config(priv
);
1282 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
1284 iwlcore_clear_stations_table(priv
);
1286 /* dont commit rxon if rf-kill is on*/
1287 if (!iwl_is_ready_rf(priv
))
1290 cancel_delayed_work(&priv
->scan_check
);
1291 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
1292 IWL_WARNING("Aborted scan still in progress after 100ms\n");
1293 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
1297 iwl4965_commit_rxon(priv
);
1302 static void iwl4965_set_rate(struct iwl_priv
*priv
)
1304 const struct ieee80211_supported_band
*hw
= NULL
;
1305 struct ieee80211_rate
*rate
;
1308 hw
= iwl_get_hw_mode(priv
, priv
->band
);
1310 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
1314 priv
->active_rate
= 0;
1315 priv
->active_rate_basic
= 0;
1317 for (i
= 0; i
< hw
->n_bitrates
; i
++) {
1318 rate
= &(hw
->bitrates
[i
]);
1319 if (rate
->hw_value
< IWL_RATE_COUNT
)
1320 priv
->active_rate
|= (1 << rate
->hw_value
);
1323 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
1324 priv
->active_rate
, priv
->active_rate_basic
);
1327 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
1328 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
1331 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
1332 priv
->staging_rxon
.cck_basic_rates
=
1333 ((priv
->active_rate_basic
&
1334 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
1336 priv
->staging_rxon
.cck_basic_rates
=
1337 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
1339 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
1340 priv
->staging_rxon
.ofdm_basic_rates
=
1341 ((priv
->active_rate_basic
&
1342 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
1343 IWL_FIRST_OFDM_RATE
) & 0xFF;
1345 priv
->staging_rxon
.ofdm_basic_rates
=
1346 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
1349 void iwl4965_radio_kill_sw(struct iwl_priv
*priv
, int disable_radio
)
1351 unsigned long flags
;
1353 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
1356 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
1357 disable_radio
? "OFF" : "ON");
1359 if (disable_radio
) {
1360 iwl4965_scan_cancel(priv
);
1361 /* FIXME: This is a workaround for AP */
1362 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
1363 spin_lock_irqsave(&priv
->lock
, flags
);
1364 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
1365 CSR_UCODE_SW_BIT_RFKILL
);
1366 spin_unlock_irqrestore(&priv
->lock
, flags
);
1367 /* call the host command only if no hw rf-kill set */
1368 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
) &&
1370 iwl4965_send_card_state(priv
,
1371 CARD_STATE_CMD_DISABLE
,
1373 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
1375 /* make sure mac80211 stop sending Tx frame */
1376 if (priv
->mac80211_registered
)
1377 ieee80211_stop_queues(priv
->hw
);
1382 spin_lock_irqsave(&priv
->lock
, flags
);
1383 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
1385 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
1386 spin_unlock_irqrestore(&priv
->lock
, flags
);
1391 spin_lock_irqsave(&priv
->lock
, flags
);
1392 iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
1393 if (!iwl_grab_nic_access(priv
))
1394 iwl_release_nic_access(priv
);
1395 spin_unlock_irqrestore(&priv
->lock
, flags
);
1397 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
1398 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
1399 "disabled by HW switch\n");
1403 queue_work(priv
->workqueue
, &priv
->restart
);
1407 #define IWL_PACKET_RETRY_TIME HZ
1409 int iwl4965_is_duplicate_packet(struct iwl_priv
*priv
, struct ieee80211_hdr
*header
)
1411 u16 sc
= le16_to_cpu(header
->seq_ctrl
);
1412 u16 seq
= (sc
& IEEE80211_SCTL_SEQ
) >> 4;
1413 u16 frag
= sc
& IEEE80211_SCTL_FRAG
;
1414 u16
*last_seq
, *last_frag
;
1415 unsigned long *last_time
;
1417 switch (priv
->iw_mode
) {
1418 case IEEE80211_IF_TYPE_IBSS
:{
1419 struct list_head
*p
;
1420 struct iwl4965_ibss_seq
*entry
= NULL
;
1421 u8
*mac
= header
->addr2
;
1422 int index
= mac
[5] & (IWL_IBSS_MAC_HASH_SIZE
- 1);
1424 __list_for_each(p
, &priv
->ibss_mac_hash
[index
]) {
1425 entry
= list_entry(p
, struct iwl4965_ibss_seq
, list
);
1426 if (!compare_ether_addr(entry
->mac
, mac
))
1429 if (p
== &priv
->ibss_mac_hash
[index
]) {
1430 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
1432 IWL_ERROR("Cannot malloc new mac entry\n");
1435 memcpy(entry
->mac
, mac
, ETH_ALEN
);
1436 entry
->seq_num
= seq
;
1437 entry
->frag_num
= frag
;
1438 entry
->packet_time
= jiffies
;
1439 list_add(&entry
->list
, &priv
->ibss_mac_hash
[index
]);
1442 last_seq
= &entry
->seq_num
;
1443 last_frag
= &entry
->frag_num
;
1444 last_time
= &entry
->packet_time
;
1447 case IEEE80211_IF_TYPE_STA
:
1448 last_seq
= &priv
->last_seq_num
;
1449 last_frag
= &priv
->last_frag_num
;
1450 last_time
= &priv
->last_packet_time
;
1455 if ((*last_seq
== seq
) &&
1456 time_after(*last_time
+ IWL_PACKET_RETRY_TIME
, jiffies
)) {
1457 if (*last_frag
== frag
)
1459 if (*last_frag
+ 1 != frag
)
1460 /* out-of-order fragment */
1466 *last_time
= jiffies
;
1473 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
1475 #include "iwl-spectrum.h"
1477 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
1478 #define BEACON_TIME_MASK_HIGH 0xFF000000
1479 #define TIME_UNIT 1024
1482 * extended beacon time format
1483 * time in usec will be changed into a 32-bit value in 8:24 format
1484 * the high 1 byte is the beacon counts
1485 * the lower 3 bytes is the time in usec within one beacon interval
1488 static u32
iwl4965_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
1492 u32 interval
= beacon_interval
* 1024;
1494 if (!interval
|| !usec
)
1497 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
1498 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
1500 return (quot
<< 24) + rem
;
1503 /* base is usually what we get from ucode with each received frame,
1504 * the same as HW timer counter counting down
1507 static __le32
iwl4965_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
1509 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
1510 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
1511 u32 interval
= beacon_interval
* TIME_UNIT
;
1512 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
1513 (addon
& BEACON_TIME_MASK_HIGH
);
1515 if (base_low
> addon_low
)
1516 res
+= base_low
- addon_low
;
1517 else if (base_low
< addon_low
) {
1518 res
+= interval
+ base_low
- addon_low
;
1523 return cpu_to_le32(res
);
1526 static int iwl4965_get_measurement(struct iwl_priv
*priv
,
1527 struct ieee80211_measurement_params
*params
,
1530 struct iwl4965_spectrum_cmd spectrum
;
1531 struct iwl_rx_packet
*res
;
1532 struct iwl_host_cmd cmd
= {
1533 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
1534 .data
= (void *)&spectrum
,
1535 .meta
.flags
= CMD_WANT_SKB
,
1537 u32 add_time
= le64_to_cpu(params
->start_time
);
1539 int spectrum_resp_status
;
1540 int duration
= le16_to_cpu(params
->duration
);
1542 if (iwl_is_associated(priv
))
1544 iwl4965_usecs_to_beacons(
1545 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
1546 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
1548 memset(&spectrum
, 0, sizeof(spectrum
));
1550 spectrum
.channel_count
= cpu_to_le16(1);
1552 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
1553 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
1554 cmd
.len
= sizeof(spectrum
);
1555 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
1557 if (iwl_is_associated(priv
))
1558 spectrum
.start_time
=
1559 iwl4965_add_beacon_time(priv
->last_beacon_time
,
1561 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
1563 spectrum
.start_time
= 0;
1565 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
1566 spectrum
.channels
[0].channel
= params
->channel
;
1567 spectrum
.channels
[0].type
= type
;
1568 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
1569 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
1570 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
1572 rc
= iwl_send_cmd_sync(priv
, &cmd
);
1576 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1577 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1578 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
1582 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
1583 switch (spectrum_resp_status
) {
1584 case 0: /* Command will be handled */
1585 if (res
->u
.spectrum
.id
!= 0xff) {
1587 ("Replaced existing measurement: %d\n",
1588 res
->u
.spectrum
.id
);
1589 priv
->measurement_status
&= ~MEASUREMENT_READY
;
1591 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
1595 case 1: /* Command will not be handled */
1600 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1606 static void iwl4965_txstatus_to_ieee(struct iwl_priv
*priv
,
1607 struct iwl_tx_info
*tx_sta
)
1610 tx_sta
->status
.ack_signal
= 0;
1611 tx_sta
->status
.excessive_retries
= 0;
1614 ieee80211_tx_status_irqsafe(priv
->hw
,
1615 tx_sta
->skb
[0], &(tx_sta
->status
));
1617 ieee80211_tx_status(priv
->hw
,
1618 tx_sta
->skb
[0], &(tx_sta
->status
));
1620 tx_sta
->skb
[0] = NULL
;
1624 * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
1626 * When FW advances 'R' index, all entries between old and new 'R' index
1627 * need to be reclaimed. As result, some free space forms. If there is
1628 * enough free space (> low mark), wake the stack that feeds us.
1630 int iwl4965_tx_queue_reclaim(struct iwl_priv
*priv
, int txq_id
, int index
)
1632 struct iwl_tx_queue
*txq
= &priv
->txq
[txq_id
];
1633 struct iwl_queue
*q
= &txq
->q
;
1636 if ((index
>= q
->n_bd
) || (iwl_queue_used(q
, index
) == 0)) {
1637 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
1638 "is out of range [0-%d] %d %d.\n", txq_id
,
1639 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
1643 for (index
= iwl_queue_inc_wrap(index
, q
->n_bd
);
1644 q
->read_ptr
!= index
;
1645 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
1646 if (txq_id
!= IWL_CMD_QUEUE_NUM
) {
1647 iwl4965_txstatus_to_ieee(priv
,
1648 &(txq
->txb
[txq
->q
.read_ptr
]));
1649 iwl_hw_txq_free_tfd(priv
, txq
);
1650 } else if (nfreed
> 1) {
1651 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index
,
1652 q
->write_ptr
, q
->read_ptr
);
1653 queue_work(priv
->workqueue
, &priv
->restart
);
1661 static int iwl4965_is_tx_success(u32 status
)
1663 status
&= TX_STATUS_MSK
;
1664 return (status
== TX_STATUS_SUCCESS
)
1665 || (status
== TX_STATUS_DIRECT_DONE
);
1668 /******************************************************************************
1670 * Generic RX handler implementations
1672 ******************************************************************************/
1673 #ifdef CONFIG_IWL4965_HT
1675 static inline int iwl4965_get_ra_sta_id(struct iwl_priv
*priv
,
1676 struct ieee80211_hdr
*hdr
)
1678 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)
1681 u8
*da
= ieee80211_get_DA(hdr
);
1682 return iwl_find_station(priv
, da
);
1686 static struct ieee80211_hdr
*iwl4965_tx_queue_get_hdr(
1687 struct iwl_priv
*priv
, int txq_id
, int idx
)
1689 if (priv
->txq
[txq_id
].txb
[idx
].skb
[0])
1690 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
1691 txb
[idx
].skb
[0]->data
;
1695 static inline u32
iwl4965_get_scd_ssn(struct iwl4965_tx_resp
*tx_resp
)
1697 __le32
*scd_ssn
= (__le32
*)((u32
*)&tx_resp
->status
+
1698 tx_resp
->frame_count
);
1699 return le32_to_cpu(*scd_ssn
) & MAX_SN
;
1704 * iwl4965_tx_status_reply_tx - Handle Tx rspnse for frames in aggregation queue
1706 static int iwl4965_tx_status_reply_tx(struct iwl_priv
*priv
,
1707 struct iwl_ht_agg
*agg
,
1708 struct iwl4965_tx_resp_agg
*tx_resp
,
1712 struct agg_tx_status
*frame_status
= &tx_resp
->status
;
1713 struct ieee80211_tx_status
*tx_status
= NULL
;
1714 struct ieee80211_hdr
*hdr
= NULL
;
1719 if (agg
->wait_for_ba
)
1720 IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
1722 agg
->frame_count
= tx_resp
->frame_count
;
1723 agg
->start_idx
= start_idx
;
1724 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
1727 /* # frames attempted by Tx command */
1728 if (agg
->frame_count
== 1) {
1729 /* Only one frame was attempted; no block-ack will arrive */
1730 status
= le16_to_cpu(frame_status
[0].status
);
1731 seq
= le16_to_cpu(frame_status
[0].sequence
);
1732 idx
= SEQ_TO_INDEX(seq
);
1733 txq_id
= SEQ_TO_QUEUE(seq
);
1735 /* FIXME: code repetition */
1736 IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
1737 agg
->frame_count
, agg
->start_idx
, idx
);
1739 tx_status
= &(priv
->txq
[txq_id
].txb
[idx
].status
);
1740 tx_status
->retry_count
= tx_resp
->failure_frame
;
1741 tx_status
->control
.flags
&= ~IEEE80211_TXCTL_AMPDU
;
1742 tx_status
->flags
= iwl4965_is_tx_success(status
)?
1743 IEEE80211_TX_STATUS_ACK
: 0;
1744 iwl4965_hwrate_to_tx_control(priv
,
1745 le32_to_cpu(tx_resp
->rate_n_flags
),
1746 &tx_status
->control
);
1747 /* FIXME: code repetition end */
1749 IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
1750 status
& 0xff, tx_resp
->failure_frame
);
1751 IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n",
1752 iwl4965_hw_get_rate_n_flags(tx_resp
->rate_n_flags
));
1754 agg
->wait_for_ba
= 0;
1756 /* Two or more frames were attempted; expect block-ack */
1758 int start
= agg
->start_idx
;
1760 /* Construct bit-map of pending frames within Tx window */
1761 for (i
= 0; i
< agg
->frame_count
; i
++) {
1763 status
= le16_to_cpu(frame_status
[i
].status
);
1764 seq
= le16_to_cpu(frame_status
[i
].sequence
);
1765 idx
= SEQ_TO_INDEX(seq
);
1766 txq_id
= SEQ_TO_QUEUE(seq
);
1768 if (status
& (AGG_TX_STATE_FEW_BYTES_MSK
|
1769 AGG_TX_STATE_ABORT_MSK
))
1772 IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
1773 agg
->frame_count
, txq_id
, idx
);
1775 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, idx
);
1777 sc
= le16_to_cpu(hdr
->seq_ctrl
);
1778 if (idx
!= (SEQ_TO_SN(sc
) & 0xff)) {
1779 IWL_ERROR("BUG_ON idx doesn't match seq control"
1780 " idx=%d, seq_idx=%d, seq=%d\n",
1786 IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n",
1787 i
, idx
, SEQ_TO_SN(sc
));
1791 sh
= (start
- idx
) + 0xff;
1792 bitmap
= bitmap
<< sh
;
1795 } else if (sh
< -64)
1796 sh
= 0xff - (start
- idx
);
1800 bitmap
= bitmap
<< sh
;
1803 bitmap
|= (1 << sh
);
1804 IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n",
1805 start
, (u32
)(bitmap
& 0xFFFFFFFF));
1808 agg
->bitmap
= bitmap
;
1809 agg
->start_idx
= start
;
1810 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
1811 IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n",
1812 agg
->frame_count
, agg
->start_idx
,
1813 (unsigned long long)agg
->bitmap
);
1816 agg
->wait_for_ba
= 1;
1823 * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response
1825 static void iwl4965_rx_reply_tx(struct iwl_priv
*priv
,
1826 struct iwl_rx_mem_buffer
*rxb
)
1828 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1829 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
1830 int txq_id
= SEQ_TO_QUEUE(sequence
);
1831 int index
= SEQ_TO_INDEX(sequence
);
1832 struct iwl_tx_queue
*txq
= &priv
->txq
[txq_id
];
1833 struct ieee80211_tx_status
*tx_status
;
1834 struct iwl4965_tx_resp
*tx_resp
= (void *)&pkt
->u
.raw
[0];
1835 u32 status
= le32_to_cpu(tx_resp
->status
);
1836 #ifdef CONFIG_IWL4965_HT
1837 int tid
= MAX_TID_COUNT
, sta_id
= IWL_INVALID_STATION
;
1839 struct ieee80211_hdr
*hdr
;
1843 if ((index
>= txq
->q
.n_bd
) || (iwl_queue_used(&txq
->q
, index
) == 0)) {
1844 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
1845 "is out of range [0-%d] %d %d\n", txq_id
,
1846 index
, txq
->q
.n_bd
, txq
->q
.write_ptr
,
1851 #ifdef CONFIG_IWL4965_HT
1852 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, index
);
1853 fc
= le16_to_cpu(hdr
->frame_control
);
1854 if (ieee80211_is_qos_data(fc
)) {
1855 qc
= ieee80211_get_qos_ctrl(hdr
, ieee80211_get_hdrlen(fc
));
1859 sta_id
= iwl4965_get_ra_sta_id(priv
, hdr
);
1860 if (txq
->sched_retry
&& unlikely(sta_id
== IWL_INVALID_STATION
)) {
1861 IWL_ERROR("Station not known\n");
1865 if (txq
->sched_retry
) {
1866 const u32 scd_ssn
= iwl4965_get_scd_ssn(tx_resp
);
1867 struct iwl_ht_agg
*agg
= NULL
;
1872 agg
= &priv
->stations
[sta_id
].tid
[tid
].agg
;
1874 iwl4965_tx_status_reply_tx(priv
, agg
,
1875 (struct iwl4965_tx_resp_agg
*)tx_resp
, index
);
1877 if ((tx_resp
->frame_count
== 1) &&
1878 !iwl4965_is_tx_success(status
)) {
1879 /* TODO: send BAR */
1882 if (txq
->q
.read_ptr
!= (scd_ssn
& 0xff)) {
1884 index
= iwl_queue_dec_wrap(scd_ssn
& 0xff, txq
->q
.n_bd
);
1885 IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
1886 "%d index %d\n", scd_ssn
, index
);
1887 freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
1888 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
1890 if (iwl_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
1891 txq_id
>= 0 && priv
->mac80211_registered
&&
1892 agg
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
) {
1893 /* calculate mac80211 ampdu sw queue to wake */
1894 ampdu_q
= txq_id
- IWL_BACK_QUEUE_FIRST_ID
+
1896 if (agg
->state
== IWL_AGG_OFF
)
1897 ieee80211_wake_queue(priv
->hw
, txq_id
);
1899 ieee80211_wake_queue(priv
->hw
, ampdu_q
);
1901 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
1904 #endif /* CONFIG_IWL4965_HT */
1905 tx_status
= &(txq
->txb
[txq
->q
.read_ptr
].status
);
1907 tx_status
->retry_count
= tx_resp
->failure_frame
;
1909 iwl4965_is_tx_success(status
) ? IEEE80211_TX_STATUS_ACK
: 0;
1910 iwl4965_hwrate_to_tx_control(priv
, le32_to_cpu(tx_resp
->rate_n_flags
),
1911 &tx_status
->control
);
1913 IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags 0x%x "
1914 "retries %d\n", txq_id
, iwl4965_get_tx_fail_reason(status
),
1915 status
, le32_to_cpu(tx_resp
->rate_n_flags
),
1916 tx_resp
->failure_frame
);
1918 IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index
);
1919 #ifdef CONFIG_IWL4965_HT
1921 int freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
1922 if (tid
!= MAX_TID_COUNT
)
1923 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
1924 if (iwl_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
1925 (txq_id
>= 0) && priv
->mac80211_registered
)
1926 ieee80211_wake_queue(priv
->hw
, txq_id
);
1927 if (tid
!= MAX_TID_COUNT
)
1928 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
1931 #endif /* CONFIG_IWL4965_HT */
1933 if (iwl_check_bits(status
, TX_ABORT_REQUIRED_MSK
))
1934 IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
1938 static void iwl4965_rx_reply_alive(struct iwl_priv
*priv
,
1939 struct iwl_rx_mem_buffer
*rxb
)
1941 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1942 struct iwl4965_alive_resp
*palive
;
1943 struct delayed_work
*pwork
;
1945 palive
= &pkt
->u
.alive_frame
;
1947 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
1949 palive
->is_valid
, palive
->ver_type
,
1950 palive
->ver_subtype
);
1952 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
1953 IWL_DEBUG_INFO("Initialization Alive received.\n");
1954 memcpy(&priv
->card_alive_init
,
1955 &pkt
->u
.alive_frame
,
1956 sizeof(struct iwl4965_init_alive_resp
));
1957 pwork
= &priv
->init_alive_start
;
1959 IWL_DEBUG_INFO("Runtime Alive received.\n");
1960 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
1961 sizeof(struct iwl4965_alive_resp
));
1962 pwork
= &priv
->alive_start
;
1965 /* We delay the ALIVE response by 5ms to
1966 * give the HW RF Kill time to activate... */
1967 if (palive
->is_valid
== UCODE_VALID_OK
)
1968 queue_delayed_work(priv
->workqueue
, pwork
,
1969 msecs_to_jiffies(5));
1971 IWL_WARNING("uCode did not respond OK.\n");
1974 static void iwl4965_rx_reply_add_sta(struct iwl_priv
*priv
,
1975 struct iwl_rx_mem_buffer
*rxb
)
1977 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1979 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
1983 static void iwl4965_rx_reply_error(struct iwl_priv
*priv
,
1984 struct iwl_rx_mem_buffer
*rxb
)
1986 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1988 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
1989 "seq 0x%04X ser 0x%08X\n",
1990 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
1991 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
1992 pkt
->u
.err_resp
.cmd_id
,
1993 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
1994 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
1997 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
1999 static void iwl4965_rx_csa(struct iwl_priv
*priv
, struct iwl_rx_mem_buffer
*rxb
)
2001 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2002 struct iwl_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
2003 struct iwl4965_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
2004 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
2005 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
2006 rxon
->channel
= csa
->channel
;
2007 priv
->staging_rxon
.channel
= csa
->channel
;
2010 static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv
*priv
,
2011 struct iwl_rx_mem_buffer
*rxb
)
2013 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
2014 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2015 struct iwl4965_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
2017 if (!report
->state
) {
2018 IWL_DEBUG(IWL_DL_11H
,
2019 "Spectrum Measure Notification: Start\n");
2023 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
2024 priv
->measurement_status
|= MEASUREMENT_READY
;
2028 static void iwl4965_rx_pm_sleep_notif(struct iwl_priv
*priv
,
2029 struct iwl_rx_mem_buffer
*rxb
)
2031 #ifdef CONFIG_IWLWIFI_DEBUG
2032 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2033 struct iwl4965_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
2034 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
2035 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
2039 static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
2040 struct iwl_rx_mem_buffer
*rxb
)
2042 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2043 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
2044 "notification for %s:\n",
2045 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
2046 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
2049 static void iwl4965_bg_beacon_update(struct work_struct
*work
)
2051 struct iwl_priv
*priv
=
2052 container_of(work
, struct iwl_priv
, beacon_update
);
2053 struct sk_buff
*beacon
;
2055 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
2056 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
, NULL
);
2059 IWL_ERROR("update beacon failed\n");
2063 mutex_lock(&priv
->mutex
);
2064 /* new beacon skb is allocated every time; dispose previous.*/
2065 if (priv
->ibss_beacon
)
2066 dev_kfree_skb(priv
->ibss_beacon
);
2068 priv
->ibss_beacon
= beacon
;
2069 mutex_unlock(&priv
->mutex
);
2071 iwl4965_send_beacon_cmd(priv
);
2074 static void iwl4965_rx_beacon_notif(struct iwl_priv
*priv
,
2075 struct iwl_rx_mem_buffer
*rxb
)
2077 #ifdef CONFIG_IWLWIFI_DEBUG
2078 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2079 struct iwl4965_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
2080 u8 rate
= iwl4965_hw_get_rate(beacon
->beacon_notify_hdr
.rate_n_flags
);
2082 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
2083 "tsf %d %d rate %d\n",
2084 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
2085 beacon
->beacon_notify_hdr
.failure_frame
,
2086 le32_to_cpu(beacon
->ibss_mgr_status
),
2087 le32_to_cpu(beacon
->high_tsf
),
2088 le32_to_cpu(beacon
->low_tsf
), rate
);
2091 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
2092 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
2093 queue_work(priv
->workqueue
, &priv
->beacon_update
);
2096 /* Service response to REPLY_SCAN_CMD (0x80) */
2097 static void iwl4965_rx_reply_scan(struct iwl_priv
*priv
,
2098 struct iwl_rx_mem_buffer
*rxb
)
2100 #ifdef CONFIG_IWLWIFI_DEBUG
2101 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2102 struct iwl4965_scanreq_notification
*notif
=
2103 (struct iwl4965_scanreq_notification
*)pkt
->u
.raw
;
2105 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
2109 /* Service SCAN_START_NOTIFICATION (0x82) */
2110 static void iwl4965_rx_scan_start_notif(struct iwl_priv
*priv
,
2111 struct iwl_rx_mem_buffer
*rxb
)
2113 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2114 struct iwl4965_scanstart_notification
*notif
=
2115 (struct iwl4965_scanstart_notification
*)pkt
->u
.raw
;
2116 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
2117 IWL_DEBUG_SCAN("Scan start: "
2119 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
2121 notif
->band
? "bg" : "a",
2123 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
2126 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
2127 static void iwl4965_rx_scan_results_notif(struct iwl_priv
*priv
,
2128 struct iwl_rx_mem_buffer
*rxb
)
2130 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2131 struct iwl4965_scanresults_notification
*notif
=
2132 (struct iwl4965_scanresults_notification
*)pkt
->u
.raw
;
2134 IWL_DEBUG_SCAN("Scan ch.res: "
2136 "(TSF: 0x%08X:%08X) - %d "
2137 "elapsed=%lu usec (%dms since last)\n",
2139 notif
->band
? "bg" : "a",
2140 le32_to_cpu(notif
->tsf_high
),
2141 le32_to_cpu(notif
->tsf_low
),
2142 le32_to_cpu(notif
->statistics
[0]),
2143 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
2144 jiffies_to_msecs(elapsed_jiffies
2145 (priv
->last_scan_jiffies
, jiffies
)));
2147 priv
->last_scan_jiffies
= jiffies
;
2148 priv
->next_scan_jiffies
= 0;
2151 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
2152 static void iwl4965_rx_scan_complete_notif(struct iwl_priv
*priv
,
2153 struct iwl_rx_mem_buffer
*rxb
)
2155 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2156 struct iwl4965_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
2158 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
2159 scan_notif
->scanned_channels
,
2160 scan_notif
->tsf_low
,
2161 scan_notif
->tsf_high
, scan_notif
->status
);
2163 /* The HW is no longer scanning */
2164 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
2166 /* The scan completion notification came in, so kill that timer... */
2167 cancel_delayed_work(&priv
->scan_check
);
2169 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
2170 (priv
->scan_bands
== 2) ? "2.4" : "5.2",
2171 jiffies_to_msecs(elapsed_jiffies
2172 (priv
->scan_pass_start
, jiffies
)));
2174 /* Remove this scanned band from the list
2175 * of pending bands to scan */
2178 /* If a request to abort was given, or the scan did not succeed
2179 * then we reset the scan state machine and terminate,
2180 * re-queuing another scan if one has been requested */
2181 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2182 IWL_DEBUG_INFO("Aborted scan completed.\n");
2183 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
2185 /* If there are more bands on this scan pass reschedule */
2186 if (priv
->scan_bands
> 0)
2190 priv
->last_scan_jiffies
= jiffies
;
2191 priv
->next_scan_jiffies
= 0;
2192 IWL_DEBUG_INFO("Setting scan to off\n");
2194 clear_bit(STATUS_SCANNING
, &priv
->status
);
2196 IWL_DEBUG_INFO("Scan took %dms\n",
2197 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
2199 queue_work(priv
->workqueue
, &priv
->scan_completed
);
2204 priv
->scan_pass_start
= jiffies
;
2205 queue_work(priv
->workqueue
, &priv
->request_scan
);
2208 /* Handle notification from uCode that card's power state is changing
2209 * due to software, hardware, or critical temperature RFKILL */
2210 static void iwl4965_rx_card_state_notif(struct iwl_priv
*priv
,
2211 struct iwl_rx_mem_buffer
*rxb
)
2213 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2214 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
2215 unsigned long status
= priv
->status
;
2217 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
2218 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
2219 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
2221 if (flags
& (SW_CARD_DISABLED
| HW_CARD_DISABLED
|
2222 RF_CARD_DISABLED
)) {
2224 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2225 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
2227 if (!iwl_grab_nic_access(priv
)) {
2229 priv
, HBUS_TARG_MBX_C
,
2230 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
2232 iwl_release_nic_access(priv
);
2235 if (!(flags
& RXON_CARD_DISABLED
)) {
2236 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
2237 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
2238 if (!iwl_grab_nic_access(priv
)) {
2240 priv
, HBUS_TARG_MBX_C
,
2241 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
2243 iwl_release_nic_access(priv
);
2247 if (flags
& RF_CARD_DISABLED
) {
2248 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2249 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
2250 iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
2251 if (!iwl_grab_nic_access(priv
))
2252 iwl_release_nic_access(priv
);
2256 if (flags
& HW_CARD_DISABLED
)
2257 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2259 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2262 if (flags
& SW_CARD_DISABLED
)
2263 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2265 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2267 if (!(flags
& RXON_CARD_DISABLED
))
2268 iwl4965_scan_cancel(priv
);
2270 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
2271 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
2272 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
2273 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
2274 queue_work(priv
->workqueue
, &priv
->rf_kill
);
2276 wake_up_interruptible(&priv
->wait_command_queue
);
2280 * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
2282 * Setup the RX handlers for each of the reply types sent from the uCode
2285 * This function chains into the hardware specific files for them to setup
2286 * any hardware specific handlers as well.
2288 static void iwl4965_setup_rx_handlers(struct iwl_priv
*priv
)
2290 priv
->rx_handlers
[REPLY_ALIVE
] = iwl4965_rx_reply_alive
;
2291 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl4965_rx_reply_add_sta
;
2292 priv
->rx_handlers
[REPLY_ERROR
] = iwl4965_rx_reply_error
;
2293 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl4965_rx_csa
;
2294 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
2295 iwl4965_rx_spectrum_measure_notif
;
2296 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl4965_rx_pm_sleep_notif
;
2297 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
2298 iwl4965_rx_pm_debug_statistics_notif
;
2299 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl4965_rx_beacon_notif
;
2302 * The same handler is used for both the REPLY to a discrete
2303 * statistics request from the host as well as for the periodic
2304 * statistics notifications (after received beacons) from the uCode.
2306 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl4965_hw_rx_statistics
;
2307 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl4965_hw_rx_statistics
;
2309 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl4965_rx_reply_scan
;
2310 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl4965_rx_scan_start_notif
;
2311 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
2312 iwl4965_rx_scan_results_notif
;
2313 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
2314 iwl4965_rx_scan_complete_notif
;
2315 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl4965_rx_card_state_notif
;
2316 priv
->rx_handlers
[REPLY_TX
] = iwl4965_rx_reply_tx
;
2318 /* Set up hardware specific Rx handlers */
2319 priv
->cfg
->ops
->lib
->rx_handler_setup(priv
);
2323 * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
2324 * @rxb: Rx buffer to reclaim
2326 * If an Rx buffer has an async callback associated with it the callback
2327 * will be executed. The attached skb (if present) will only be freed
2328 * if the callback returns 1
2330 static void iwl4965_tx_cmd_complete(struct iwl_priv
*priv
,
2331 struct iwl_rx_mem_buffer
*rxb
)
2333 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2334 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
2335 int txq_id
= SEQ_TO_QUEUE(sequence
);
2336 int index
= SEQ_TO_INDEX(sequence
);
2337 int huge
= sequence
& SEQ_HUGE_FRAME
;
2339 struct iwl_cmd
*cmd
;
2341 /* If a Tx command is being handled and it isn't in the actual
2342 * command queue then there a command routing bug has been introduced
2343 * in the queue management code. */
2344 if (txq_id
!= IWL_CMD_QUEUE_NUM
)
2345 IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
2346 txq_id
, pkt
->hdr
.cmd
);
2347 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
2349 cmd_index
= get_cmd_index(&priv
->txq
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
2350 cmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
2352 /* Input error checking is done when commands are added to queue. */
2353 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
2354 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
2356 } else if (cmd
->meta
.u
.callback
&&
2357 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
2360 iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
2362 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
2363 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
2364 wake_up_interruptible(&priv
->wait_command_queue
);
2369 * this should be called while priv->lock is locked
2371 static void __iwl_rx_replenish(struct iwl_priv
*priv
)
2373 iwl_rx_allocate(priv
);
2374 iwl_rx_queue_restock(priv
);
2379 * iwl_rx_handle - Main entry function for receiving responses from uCode
2381 * Uses the priv->rx_handlers callback function array to invoke
2382 * the appropriate handlers, including command responses,
2383 * frame-received notifications, and other notifications.
2385 void iwl_rx_handle(struct iwl_priv
*priv
)
2387 struct iwl_rx_mem_buffer
*rxb
;
2388 struct iwl_rx_packet
*pkt
;
2389 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
2392 unsigned long flags
;
2396 /* uCode's read index (stored in shared DRAM) indicates the last Rx
2397 * buffer that the driver may process (last buffer filled by ucode). */
2398 r
= priv
->cfg
->ops
->lib
->shared_mem_rx_idx(priv
);
2401 /* Rx interrupt, but nothing sent from uCode */
2403 IWL_DEBUG(IWL_DL_RX
, "r = %d, i = %d\n", r
, i
);
2405 if (iwl_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
2409 rxb
= rxq
->queue
[i
];
2411 /* If an RXB doesn't have a Rx queue slot associated with it,
2412 * then a bug has been introduced in the queue refilling
2413 * routines -- catch it here */
2414 BUG_ON(rxb
== NULL
);
2416 rxq
->queue
[i
] = NULL
;
2418 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
2419 priv
->hw_params
.rx_buf_size
,
2420 PCI_DMA_FROMDEVICE
);
2421 pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2423 /* Reclaim a command buffer only if this packet is a response
2424 * to a (driver-originated) command.
2425 * If the packet (e.g. Rx frame) originated from uCode,
2426 * there is no command buffer to reclaim.
2427 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
2428 * but apparently a few don't get set; catch them here. */
2429 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
2430 (pkt
->hdr
.cmd
!= REPLY_RX_PHY_CMD
) &&
2431 (pkt
->hdr
.cmd
!= REPLY_RX
) &&
2432 (pkt
->hdr
.cmd
!= REPLY_COMPRESSED_BA
) &&
2433 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
2434 (pkt
->hdr
.cmd
!= REPLY_TX
);
2436 /* Based on type of command response or notification,
2437 * handle those that need handling via function in
2438 * rx_handlers table. See iwl4965_setup_rx_handlers() */
2439 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
2440 IWL_DEBUG(IWL_DL_RX
, "r = %d, i = %d, %s, 0x%02x\n", r
,
2441 i
, get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
2442 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
2444 /* No handling needed */
2445 IWL_DEBUG(IWL_DL_RX
,
2446 "r %d i %d No handler needed for %s, 0x%02x\n",
2447 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
2452 /* Invoke any callbacks, transfer the skb to caller, and
2453 * fire off the (possibly) blocking iwl_send_cmd()
2454 * as we reclaim the driver command queue */
2455 if (rxb
&& rxb
->skb
)
2456 iwl4965_tx_cmd_complete(priv
, rxb
);
2458 IWL_WARNING("Claim null rxb?\n");
2461 /* For now we just don't re-use anything. We can tweak this
2462 * later to try and re-use notification packets and SKBs that
2463 * fail to Rx correctly */
2464 if (rxb
->skb
!= NULL
) {
2465 priv
->alloc_rxb_skb
--;
2466 dev_kfree_skb_any(rxb
->skb
);
2470 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
2471 priv
->hw_params
.rx_buf_size
,
2472 PCI_DMA_FROMDEVICE
);
2473 spin_lock_irqsave(&rxq
->lock
, flags
);
2474 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
2475 spin_unlock_irqrestore(&rxq
->lock
, flags
);
2476 i
= (i
+ 1) & RX_QUEUE_MASK
;
2477 /* If there are a lot of unused frames,
2478 * restock the Rx queue so ucode wont assert. */
2483 __iwl_rx_replenish(priv
);
2489 /* Backtrack one entry */
2491 iwl_rx_queue_restock(priv
);
2493 /* Convert linear signal-to-noise ratio into dB */
2494 static u8 ratio2dB
[100] = {
2495 /* 0 1 2 3 4 5 6 7 8 9 */
2496 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
2497 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
2498 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
2499 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
2500 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
2501 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
2502 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
2503 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
2504 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
2505 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
2508 /* Calculates a relative dB value from a ratio of linear
2509 * (i.e. not dB) signal levels.
2510 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
2511 int iwl4965_calc_db_from_ratio(int sig_ratio
)
2513 /* 1000:1 or higher just report as 60 dB */
2514 if (sig_ratio
>= 1000)
2517 /* 100:1 or higher, divide by 10 and use table,
2518 * add 20 dB to make up for divide by 10 */
2519 if (sig_ratio
>= 100)
2520 return (20 + (int)ratio2dB
[sig_ratio
/10]);
2522 /* We shouldn't see this */
2526 /* Use table for ratios 1:1 - 99:1 */
2527 return (int)ratio2dB
[sig_ratio
];
2530 #define PERFECT_RSSI (-20) /* dBm */
2531 #define WORST_RSSI (-95) /* dBm */
2532 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
2534 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
2535 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
2536 * about formulas used below. */
2537 int iwl4965_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
2540 int degradation
= PERFECT_RSSI
- rssi_dbm
;
2542 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
2543 * as indicator; formula is (signal dbm - noise dbm).
2544 * SNR at or above 40 is a great signal (100%).
2545 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
2546 * Weakest usable signal is usually 10 - 15 dB SNR. */
2548 if (rssi_dbm
- noise_dbm
>= 40)
2550 else if (rssi_dbm
< noise_dbm
)
2552 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
2554 /* Else use just the signal level.
2555 * This formula is a least squares fit of data points collected and
2556 * compared with a reference system that had a percentage (%) display
2557 * for signal quality. */
2559 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
2560 (15 * RSSI_RANGE
+ 62 * degradation
)) /
2561 (RSSI_RANGE
* RSSI_RANGE
);
2565 else if (sig_qual
< 1)
2571 #ifdef CONFIG_IWLWIFI_DEBUG
2572 static void iwl4965_print_rx_config_cmd(struct iwl_priv
*priv
)
2574 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
2575 DECLARE_MAC_BUF(mac
);
2577 IWL_DEBUG_RADIO("RX CONFIG:\n");
2578 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
2579 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
2580 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
2581 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
2582 le32_to_cpu(rxon
->filter_flags
));
2583 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
2584 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
2585 rxon
->ofdm_basic_rates
);
2586 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
2587 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
2588 print_mac(mac
, rxon
->node_addr
));
2589 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
2590 print_mac(mac
, rxon
->bssid_addr
));
2591 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
2595 static void iwl4965_enable_interrupts(struct iwl_priv
*priv
)
2597 IWL_DEBUG_ISR("Enabling interrupts\n");
2598 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
2599 iwl_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
2602 /* call this function to flush any scheduled tasklet */
2603 static inline void iwl_synchronize_irq(struct iwl_priv
*priv
)
2605 /* wait to make sure we flush pedding tasklet*/
2606 synchronize_irq(priv
->pci_dev
->irq
);
2607 tasklet_kill(&priv
->irq_tasklet
);
2610 static inline void iwl4965_disable_interrupts(struct iwl_priv
*priv
)
2612 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
2614 /* disable interrupts from uCode/NIC to host */
2615 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
2617 /* acknowledge/clear/reset any interrupts still pending
2618 * from uCode or flow handler (Rx/Tx DMA) */
2619 iwl_write32(priv
, CSR_INT
, 0xffffffff);
2620 iwl_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
2621 IWL_DEBUG_ISR("Disabled interrupts\n");
2624 static const char *desc_lookup(int i
)
2632 return "BAD_CHECKSUM";
2634 return "NMI_INTERRUPT";
2638 return "FATAL_ERROR";
2644 #define ERROR_START_OFFSET (1 * sizeof(u32))
2645 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
2647 static void iwl4965_dump_nic_error_log(struct iwl_priv
*priv
)
2650 u32 desc
, time
, count
, base
, data1
;
2651 u32 blink1
, blink2
, ilink1
, ilink2
;
2654 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
2656 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
2657 IWL_ERROR("Not valid error log pointer 0x%08X\n", base
);
2661 rc
= iwl_grab_nic_access(priv
);
2663 IWL_WARNING("Can not read from adapter at this time.\n");
2667 count
= iwl_read_targ_mem(priv
, base
);
2669 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
2670 IWL_ERROR("Start IWL Error Log Dump:\n");
2671 IWL_ERROR("Status: 0x%08lX, count: %d\n", priv
->status
, count
);
2674 desc
= iwl_read_targ_mem(priv
, base
+ 1 * sizeof(u32
));
2675 blink1
= iwl_read_targ_mem(priv
, base
+ 3 * sizeof(u32
));
2676 blink2
= iwl_read_targ_mem(priv
, base
+ 4 * sizeof(u32
));
2677 ilink1
= iwl_read_targ_mem(priv
, base
+ 5 * sizeof(u32
));
2678 ilink2
= iwl_read_targ_mem(priv
, base
+ 6 * sizeof(u32
));
2679 data1
= iwl_read_targ_mem(priv
, base
+ 7 * sizeof(u32
));
2680 data2
= iwl_read_targ_mem(priv
, base
+ 8 * sizeof(u32
));
2681 line
= iwl_read_targ_mem(priv
, base
+ 9 * sizeof(u32
));
2682 time
= iwl_read_targ_mem(priv
, base
+ 11 * sizeof(u32
));
2684 IWL_ERROR("Desc Time "
2685 "data1 data2 line\n");
2686 IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n",
2687 desc_lookup(desc
), desc
, time
, data1
, data2
, line
);
2688 IWL_ERROR("blink1 blink2 ilink1 ilink2\n");
2689 IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1
, blink2
,
2692 iwl_release_nic_access(priv
);
2696 * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
2698 static void iwl4965_irq_handle_error(struct iwl_priv
*priv
)
2700 /* Set the FW error flag -- cleared on iwl4965_down */
2701 set_bit(STATUS_FW_ERROR
, &priv
->status
);
2703 /* Cancel currently queued command. */
2704 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
2706 #ifdef CONFIG_IWLWIFI_DEBUG
2707 if (priv
->debug_level
& IWL_DL_FW_ERRORS
) {
2708 iwl4965_dump_nic_error_log(priv
);
2709 iwl_dump_nic_event_log(priv
);
2710 iwl4965_print_rx_config_cmd(priv
);
2714 wake_up_interruptible(&priv
->wait_command_queue
);
2716 /* Keep the restart process from trying to send host
2717 * commands by clearing the INIT status bit */
2718 clear_bit(STATUS_READY
, &priv
->status
);
2720 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
2721 IWL_DEBUG(IWL_DL_FW_ERRORS
,
2722 "Restarting adapter due to uCode error.\n");
2724 if (iwl_is_associated(priv
)) {
2725 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
2726 sizeof(priv
->recovery_rxon
));
2727 priv
->error_recovering
= 1;
2729 if (priv
->cfg
->mod_params
->restart_fw
)
2730 queue_work(priv
->workqueue
, &priv
->restart
);
2734 static void iwl4965_error_recovery(struct iwl_priv
*priv
)
2736 unsigned long flags
;
2738 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
2739 sizeof(priv
->staging_rxon
));
2740 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2741 iwl4965_commit_rxon(priv
);
2743 iwl_rxon_add_station(priv
, priv
->bssid
, 1);
2745 spin_lock_irqsave(&priv
->lock
, flags
);
2746 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
2747 priv
->error_recovering
= 0;
2748 spin_unlock_irqrestore(&priv
->lock
, flags
);
2751 static void iwl4965_irq_tasklet(struct iwl_priv
*priv
)
2753 u32 inta
, handled
= 0;
2755 unsigned long flags
;
2756 #ifdef CONFIG_IWLWIFI_DEBUG
2760 spin_lock_irqsave(&priv
->lock
, flags
);
2762 /* Ack/clear/reset pending uCode interrupts.
2763 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
2764 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
2765 inta
= iwl_read32(priv
, CSR_INT
);
2766 iwl_write32(priv
, CSR_INT
, inta
);
2768 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
2769 * Any new interrupts that happen after this, either while we're
2770 * in this tasklet, or later, will show up in next ISR/tasklet. */
2771 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
2772 iwl_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
2774 #ifdef CONFIG_IWLWIFI_DEBUG
2775 if (priv
->debug_level
& IWL_DL_ISR
) {
2776 /* just for debug */
2777 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
2778 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
2779 inta
, inta_mask
, inta_fh
);
2783 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
2784 * atomic, make sure that inta covers all the interrupts that
2785 * we've discovered, even if FH interrupt came in just after
2786 * reading CSR_INT. */
2787 if (inta_fh
& CSR49_FH_INT_RX_MASK
)
2788 inta
|= CSR_INT_BIT_FH_RX
;
2789 if (inta_fh
& CSR49_FH_INT_TX_MASK
)
2790 inta
|= CSR_INT_BIT_FH_TX
;
2792 /* Now service all interrupt bits discovered above. */
2793 if (inta
& CSR_INT_BIT_HW_ERR
) {
2794 IWL_ERROR("Microcode HW error detected. Restarting.\n");
2796 /* Tell the device to stop sending interrupts */
2797 iwl4965_disable_interrupts(priv
);
2799 iwl4965_irq_handle_error(priv
);
2801 handled
|= CSR_INT_BIT_HW_ERR
;
2803 spin_unlock_irqrestore(&priv
->lock
, flags
);
2808 #ifdef CONFIG_IWLWIFI_DEBUG
2809 if (priv
->debug_level
& (IWL_DL_ISR
)) {
2810 /* NIC fires this, but we don't use it, redundant with WAKEUP */
2811 if (inta
& CSR_INT_BIT_SCD
)
2812 IWL_DEBUG_ISR("Scheduler finished to transmit "
2813 "the frame/frames.\n");
2815 /* Alive notification via Rx interrupt will do the real work */
2816 if (inta
& CSR_INT_BIT_ALIVE
)
2817 IWL_DEBUG_ISR("Alive interrupt\n");
2820 /* Safely ignore these bits for debug checks below */
2821 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
2823 /* HW RF KILL switch toggled */
2824 if (inta
& CSR_INT_BIT_RF_KILL
) {
2826 if (!(iwl_read32(priv
, CSR_GP_CNTRL
) &
2827 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
2830 IWL_DEBUG(IWL_DL_RF_KILL
, "RF_KILL bit toggled to %s.\n",
2831 hw_rf_kill
? "disable radio":"enable radio");
2833 /* Queue restart only if RF_KILL switch was set to "kill"
2834 * when we loaded driver, and is now set to "enable".
2835 * After we're Alive, RF_KILL gets handled by
2836 * iwl4965_rx_card_state_notif() */
2837 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
2838 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2839 queue_work(priv
->workqueue
, &priv
->restart
);
2842 handled
|= CSR_INT_BIT_RF_KILL
;
2845 /* Chip got too hot and stopped itself */
2846 if (inta
& CSR_INT_BIT_CT_KILL
) {
2847 IWL_ERROR("Microcode CT kill error detected.\n");
2848 handled
|= CSR_INT_BIT_CT_KILL
;
2851 /* Error detected by uCode */
2852 if (inta
& CSR_INT_BIT_SW_ERR
) {
2853 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
2855 iwl4965_irq_handle_error(priv
);
2856 handled
|= CSR_INT_BIT_SW_ERR
;
2859 /* uCode wakes up after power-down sleep */
2860 if (inta
& CSR_INT_BIT_WAKEUP
) {
2861 IWL_DEBUG_ISR("Wakeup interrupt\n");
2862 iwl_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
2863 iwl_txq_update_write_ptr(priv
, &priv
->txq
[0]);
2864 iwl_txq_update_write_ptr(priv
, &priv
->txq
[1]);
2865 iwl_txq_update_write_ptr(priv
, &priv
->txq
[2]);
2866 iwl_txq_update_write_ptr(priv
, &priv
->txq
[3]);
2867 iwl_txq_update_write_ptr(priv
, &priv
->txq
[4]);
2868 iwl_txq_update_write_ptr(priv
, &priv
->txq
[5]);
2870 handled
|= CSR_INT_BIT_WAKEUP
;
2873 /* All uCode command responses, including Tx command responses,
2874 * Rx "responses" (frame-received notification), and other
2875 * notifications from uCode come through here*/
2876 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
2877 iwl_rx_handle(priv
);
2878 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
2881 if (inta
& CSR_INT_BIT_FH_TX
) {
2882 IWL_DEBUG_ISR("Tx interrupt\n");
2883 handled
|= CSR_INT_BIT_FH_TX
;
2884 /* FH finished to write, send event */
2885 priv
->ucode_write_complete
= 1;
2886 wake_up_interruptible(&priv
->wait_command_queue
);
2889 if (inta
& ~handled
)
2890 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
2892 if (inta
& ~CSR_INI_SET_MASK
) {
2893 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
2894 inta
& ~CSR_INI_SET_MASK
);
2895 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
2898 /* Re-enable all interrupts */
2899 /* only Re-enable if diabled by irq */
2900 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
2901 iwl4965_enable_interrupts(priv
);
2903 #ifdef CONFIG_IWLWIFI_DEBUG
2904 if (priv
->debug_level
& (IWL_DL_ISR
)) {
2905 inta
= iwl_read32(priv
, CSR_INT
);
2906 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
2907 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
2908 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
2909 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
2912 spin_unlock_irqrestore(&priv
->lock
, flags
);
2915 static irqreturn_t
iwl4965_isr(int irq
, void *data
)
2917 struct iwl_priv
*priv
= data
;
2918 u32 inta
, inta_mask
;
2923 spin_lock(&priv
->lock
);
2925 /* Disable (but don't clear!) interrupts here to avoid
2926 * back-to-back ISRs and sporadic interrupts from our NIC.
2927 * If we have something to service, the tasklet will re-enable ints.
2928 * If we *don't* have something, we'll re-enable before leaving here. */
2929 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
2930 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
2932 /* Discover which interrupts are active/pending */
2933 inta
= iwl_read32(priv
, CSR_INT
);
2934 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
2936 /* Ignore interrupt if there's nothing in NIC to service.
2937 * This may be due to IRQ shared with another device,
2938 * or due to sporadic interrupts thrown from our NIC. */
2939 if (!inta
&& !inta_fh
) {
2940 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
2944 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
2945 /* Hardware disappeared. It might have already raised
2947 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
2951 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
2952 inta
, inta_mask
, inta_fh
);
2954 inta
&= ~CSR_INT_BIT_SCD
;
2956 /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
2957 if (likely(inta
|| inta_fh
))
2958 tasklet_schedule(&priv
->irq_tasklet
);
2961 spin_unlock(&priv
->lock
);
2965 /* re-enable interrupts here since we don't have anything to service. */
2966 /* only Re-enable if diabled by irq */
2967 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
2968 iwl4965_enable_interrupts(priv
);
2969 spin_unlock(&priv
->lock
);
2973 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
2974 * sending probe req. This should be set long enough to hear probe responses
2975 * from more than one AP. */
2976 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
2977 #define IWL_ACTIVE_DWELL_TIME_52 (10)
2979 /* For faster active scanning, scan will move to the next channel if fewer than
2980 * PLCP_QUIET_THRESH packets are heard on this channel within
2981 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
2982 * time if it's a quiet channel (nothing responded to our probe, and there's
2983 * no other traffic).
2984 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
2985 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
2986 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
2988 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
2989 * Must be set longer than active dwell time.
2990 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
2991 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
2992 #define IWL_PASSIVE_DWELL_TIME_52 (10)
2993 #define IWL_PASSIVE_DWELL_BASE (100)
2994 #define IWL_CHANNEL_TUNE_TIME 5
2996 static inline u16
iwl4965_get_active_dwell_time(struct iwl_priv
*priv
,
2997 enum ieee80211_band band
)
2999 if (band
== IEEE80211_BAND_5GHZ
)
3000 return IWL_ACTIVE_DWELL_TIME_52
;
3002 return IWL_ACTIVE_DWELL_TIME_24
;
3005 static u16
iwl4965_get_passive_dwell_time(struct iwl_priv
*priv
,
3006 enum ieee80211_band band
)
3008 u16 active
= iwl4965_get_active_dwell_time(priv
, band
);
3009 u16 passive
= (band
!= IEEE80211_BAND_5GHZ
) ?
3010 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
3011 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
3013 if (iwl_is_associated(priv
)) {
3014 /* If we're associated, we clamp the maximum passive
3015 * dwell time to be 98% of the beacon interval (minus
3016 * 2 * channel tune time) */
3017 passive
= priv
->beacon_int
;
3018 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
3019 passive
= IWL_PASSIVE_DWELL_BASE
;
3020 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
3023 if (passive
<= active
)
3024 passive
= active
+ 1;
3029 static int iwl4965_get_channels_for_scan(struct iwl_priv
*priv
,
3030 enum ieee80211_band band
,
3031 u8 is_active
, u8 direct_mask
,
3032 struct iwl4965_scan_channel
*scan_ch
)
3034 const struct ieee80211_channel
*channels
= NULL
;
3035 const struct ieee80211_supported_band
*sband
;
3036 const struct iwl_channel_info
*ch_info
;
3037 u16 passive_dwell
= 0;
3038 u16 active_dwell
= 0;
3041 sband
= iwl_get_hw_mode(priv
, band
);
3045 channels
= sband
->channels
;
3047 active_dwell
= iwl4965_get_active_dwell_time(priv
, band
);
3048 passive_dwell
= iwl4965_get_passive_dwell_time(priv
, band
);
3050 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
3051 if (channels
[i
].flags
& IEEE80211_CHAN_DISABLED
)
3054 scan_ch
->channel
= ieee80211_frequency_to_channel(channels
[i
].center_freq
);
3056 ch_info
= iwl_get_channel_info(priv
, band
,
3058 if (!is_channel_valid(ch_info
)) {
3059 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
3064 if (!is_active
|| is_channel_passive(ch_info
) ||
3065 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
))
3066 scan_ch
->type
= 0; /* passive */
3068 scan_ch
->type
= 1; /* active */
3070 if (scan_ch
->type
& 1)
3071 scan_ch
->type
|= (direct_mask
<< 1);
3073 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
3074 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
3076 /* Set txpower levels to defaults */
3077 scan_ch
->tpc
.dsp_atten
= 110;
3078 /* scan_pwr_info->tpc.dsp_atten; */
3080 /*scan_pwr_info->tpc.tx_gain; */
3081 if (band
== IEEE80211_BAND_5GHZ
)
3082 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
3084 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
3085 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
3087 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
3091 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
3093 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
3094 (scan_ch
->type
& 1) ?
3095 active_dwell
: passive_dwell
);
3101 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
3105 /******************************************************************************
3107 * uCode download functions
3109 ******************************************************************************/
3111 static void iwl4965_dealloc_ucode_pci(struct iwl_priv
*priv
)
3113 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
3114 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
3115 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
3116 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
3117 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
3118 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
3121 static void iwl4965_nic_start(struct iwl_priv
*priv
)
3123 /* Remove all resets to allow NIC to operate */
3124 iwl_write32(priv
, CSR_RESET
, 0);
3129 * iwl4965_read_ucode - Read uCode images from disk file.
3131 * Copy into buffers for card to fetch via bus-mastering
3133 static int iwl4965_read_ucode(struct iwl_priv
*priv
)
3135 struct iwl4965_ucode
*ucode
;
3137 const struct firmware
*ucode_raw
;
3138 const char *name
= priv
->cfg
->fw_name
;
3141 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
3143 /* Ask kernel firmware_class module to get the boot firmware off disk.
3144 * request_firmware() is synchronous, file is in memory on return. */
3145 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
3147 IWL_ERROR("%s firmware file req failed: Reason %d\n",
3152 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
3153 name
, ucode_raw
->size
);
3155 /* Make sure that we got at least our header! */
3156 if (ucode_raw
->size
< sizeof(*ucode
)) {
3157 IWL_ERROR("File size way too small!\n");
3162 /* Data from ucode file: header followed by uCode images */
3163 ucode
= (void *)ucode_raw
->data
;
3165 ver
= le32_to_cpu(ucode
->ver
);
3166 inst_size
= le32_to_cpu(ucode
->inst_size
);
3167 data_size
= le32_to_cpu(ucode
->data_size
);
3168 init_size
= le32_to_cpu(ucode
->init_size
);
3169 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
3170 boot_size
= le32_to_cpu(ucode
->boot_size
);
3172 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
3173 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
3175 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
3177 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
3179 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
3181 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
3184 /* Verify size of file vs. image size info in file's header */
3185 if (ucode_raw
->size
< sizeof(*ucode
) +
3186 inst_size
+ data_size
+ init_size
+
3187 init_data_size
+ boot_size
) {
3189 IWL_DEBUG_INFO("uCode file size %d too small\n",
3190 (int)ucode_raw
->size
);
3195 /* Verify that uCode images will fit in card's SRAM */
3196 if (inst_size
> priv
->hw_params
.max_inst_size
) {
3197 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
3203 if (data_size
> priv
->hw_params
.max_data_size
) {
3204 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
3209 if (init_size
> priv
->hw_params
.max_inst_size
) {
3211 ("uCode init instr len %d too large to fit in\n",
3216 if (init_data_size
> priv
->hw_params
.max_data_size
) {
3218 ("uCode init data len %d too large to fit in\n",
3223 if (boot_size
> priv
->hw_params
.max_bsm_size
) {
3225 ("uCode boot instr len %d too large to fit in\n",
3231 /* Allocate ucode buffers for card's bus-master loading ... */
3233 /* Runtime instructions and 2 copies of data:
3234 * 1) unmodified from disk
3235 * 2) backup cache for save/restore during power-downs */
3236 priv
->ucode_code
.len
= inst_size
;
3237 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
3239 priv
->ucode_data
.len
= data_size
;
3240 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
3242 priv
->ucode_data_backup
.len
= data_size
;
3243 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
3245 /* Initialization instructions and data */
3246 if (init_size
&& init_data_size
) {
3247 priv
->ucode_init
.len
= init_size
;
3248 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
3250 priv
->ucode_init_data
.len
= init_data_size
;
3251 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
3253 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
3257 /* Bootstrap (instructions only, no data) */
3259 priv
->ucode_boot
.len
= boot_size
;
3260 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
3262 if (!priv
->ucode_boot
.v_addr
)
3266 /* Copy images into buffers for card's bus-master reads ... */
3268 /* Runtime instructions (first block of data in file) */
3269 src
= &ucode
->data
[0];
3270 len
= priv
->ucode_code
.len
;
3271 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
3272 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
3273 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
3274 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
3276 /* Runtime data (2nd block)
3277 * NOTE: Copy into backup buffer will be done in iwl4965_up() */
3278 src
= &ucode
->data
[inst_size
];
3279 len
= priv
->ucode_data
.len
;
3280 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
3281 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
3282 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
3284 /* Initialization instructions (3rd block) */
3286 src
= &ucode
->data
[inst_size
+ data_size
];
3287 len
= priv
->ucode_init
.len
;
3288 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
3290 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
3293 /* Initialization data (4th block) */
3294 if (init_data_size
) {
3295 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
3296 len
= priv
->ucode_init_data
.len
;
3297 IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
3299 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
3302 /* Bootstrap instructions (5th block) */
3303 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
3304 len
= priv
->ucode_boot
.len
;
3305 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len
);
3306 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
3308 /* We have our copies now, allow OS release its copies */
3309 release_firmware(ucode_raw
);
3313 IWL_ERROR("failed to allocate pci memory\n");
3315 iwl4965_dealloc_ucode_pci(priv
);
3318 release_firmware(ucode_raw
);
3325 * iwl4965_alive_start - called after REPLY_ALIVE notification received
3326 * from protocol/runtime uCode (initialization uCode's
3327 * Alive gets handled by iwl4965_init_alive_start()).
3329 static void iwl4965_alive_start(struct iwl_priv
*priv
)
3333 IWL_DEBUG_INFO("Runtime Alive received.\n");
3335 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
3336 /* We had an error bringing up the hardware, so take it
3337 * all the way back down so we can try again */
3338 IWL_DEBUG_INFO("Alive failed.\n");
3342 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
3343 * This is a paranoid check, because we would not have gotten the
3344 * "runtime" alive if code weren't properly loaded. */
3345 if (iwl_verify_ucode(priv
)) {
3346 /* Runtime instruction load was bad;
3347 * take it all the way back down so we can try again */
3348 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
3352 iwlcore_clear_stations_table(priv
);
3354 ret
= priv
->cfg
->ops
->lib
->alive_notify(priv
);
3356 IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
3361 /* After the ALIVE response, we can send host commands to 4965 uCode */
3362 set_bit(STATUS_ALIVE
, &priv
->status
);
3364 /* Clear out the uCode error bit if it is set */
3365 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
3367 if (iwl_is_rfkill(priv
))
3370 ieee80211_start_queues(priv
->hw
);
3372 priv
->active_rate
= priv
->rates_mask
;
3373 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
3375 if (iwl_is_associated(priv
)) {
3376 struct iwl_rxon_cmd
*active_rxon
=
3377 (struct iwl_rxon_cmd
*)&priv
->active_rxon
;
3379 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
3380 sizeof(priv
->staging_rxon
));
3381 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
3383 /* Initialize our rx_config data */
3384 iwl4965_connection_init_rx_config(priv
);
3385 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
3388 /* Configure Bluetooth device coexistence support */
3389 iwl4965_send_bt_config(priv
);
3391 /* Configure the adapter for unassociated operation */
3392 iwl4965_commit_rxon(priv
);
3394 /* At this point, the NIC is initialized and operational */
3395 priv
->notif_missed_beacons
= 0;
3397 iwl4965_rf_kill_ct_config(priv
);
3399 iwl_leds_register(priv
);
3401 IWL_DEBUG_INFO("ALIVE processing complete.\n");
3402 set_bit(STATUS_READY
, &priv
->status
);
3403 wake_up_interruptible(&priv
->wait_command_queue
);
3405 if (priv
->error_recovering
)
3406 iwl4965_error_recovery(priv
);
3408 iwlcore_low_level_notify(priv
, IWLCORE_START_EVT
);
3409 ieee80211_notify_mac(priv
->hw
, IEEE80211_NOTIFY_RE_ASSOC
);
3413 queue_work(priv
->workqueue
, &priv
->restart
);
3416 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
);
3418 static void __iwl4965_down(struct iwl_priv
*priv
)
3420 unsigned long flags
;
3421 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3422 struct ieee80211_conf
*conf
= NULL
;
3424 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
3426 conf
= ieee80211_get_hw_conf(priv
->hw
);
3429 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3431 iwl_leds_unregister(priv
);
3433 iwlcore_low_level_notify(priv
, IWLCORE_STOP_EVT
);
3435 iwlcore_clear_stations_table(priv
);
3437 /* Unblock any waiting calls */
3438 wake_up_interruptible_all(&priv
->wait_command_queue
);
3440 /* Wipe out the EXIT_PENDING status bit if we are not actually
3441 * exiting the module */
3443 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3445 /* stop and reset the on-board processor */
3446 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
3448 /* tell the device to stop sending interrupts */
3449 spin_lock_irqsave(&priv
->lock
, flags
);
3450 iwl4965_disable_interrupts(priv
);
3451 spin_unlock_irqrestore(&priv
->lock
, flags
);
3452 iwl_synchronize_irq(priv
);
3454 if (priv
->mac80211_registered
)
3455 ieee80211_stop_queues(priv
->hw
);
3457 /* If we have not previously called iwl4965_init() then
3458 * clear all bits but the RF Kill and SUSPEND bits and return */
3459 if (!iwl_is_init(priv
)) {
3460 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
3462 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
3464 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
3465 STATUS_GEO_CONFIGURED
|
3466 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
3471 /* ...otherwise clear out all the status bits but the RF Kill and
3472 * SUSPEND bits and continue taking the NIC down. */
3473 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
3475 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
3477 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
3478 STATUS_GEO_CONFIGURED
|
3479 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
3481 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
3484 spin_lock_irqsave(&priv
->lock
, flags
);
3485 iwl_clear_bit(priv
, CSR_GP_CNTRL
,
3486 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3487 spin_unlock_irqrestore(&priv
->lock
, flags
);
3489 iwl4965_hw_txq_ctx_stop(priv
);
3490 iwl4965_hw_rxq_stop(priv
);
3492 spin_lock_irqsave(&priv
->lock
, flags
);
3493 if (!iwl_grab_nic_access(priv
)) {
3494 iwl_write_prph(priv
, APMG_CLK_DIS_REG
,
3495 APMG_CLK_VAL_DMA_CLK_RQT
);
3496 iwl_release_nic_access(priv
);
3498 spin_unlock_irqrestore(&priv
->lock
, flags
);
3502 iwl4965_hw_nic_stop_master(priv
);
3503 iwl_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
3504 iwl4965_hw_nic_reset(priv
);
3505 priv
->cfg
->ops
->lib
->free_shared_mem(priv
);
3508 memset(&priv
->card_alive
, 0, sizeof(struct iwl4965_alive_resp
));
3510 if (priv
->ibss_beacon
)
3511 dev_kfree_skb(priv
->ibss_beacon
);
3512 priv
->ibss_beacon
= NULL
;
3514 /* clear out any free frames */
3515 iwl_clear_free_frames(priv
);
3518 static void iwl4965_down(struct iwl_priv
*priv
)
3520 mutex_lock(&priv
->mutex
);
3521 __iwl4965_down(priv
);
3522 mutex_unlock(&priv
->mutex
);
3524 iwl4965_cancel_deferred_work(priv
);
3527 #define MAX_HW_RESTARTS 5
3529 static int __iwl4965_up(struct iwl_priv
*priv
)
3534 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
3535 IWL_WARNING("Exit pending; will not bring the NIC up\n");
3539 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
3540 IWL_WARNING("Radio disabled by SW RF kill (module "
3542 iwl_rfkill_set_hw_state(priv
);
3546 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
3547 IWL_ERROR("ucode not available for device bringup\n");
3551 /* If platform's RF_KILL switch is NOT set to KILL */
3552 if (iwl_read32(priv
, CSR_GP_CNTRL
) &
3553 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
3554 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3556 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3557 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
3558 iwl_rfkill_set_hw_state(priv
);
3559 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
3564 iwl_rfkill_set_hw_state(priv
);
3565 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
3567 ret
= priv
->cfg
->ops
->lib
->alloc_shared_mem(priv
);
3569 IWL_ERROR("Unable to allocate shared memory\n");
3573 ret
= iwl_hw_nic_init(priv
);
3575 IWL_ERROR("Unable to init nic\n");
3579 /* make sure rfkill handshake bits are cleared */
3580 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3581 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
3582 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3584 /* clear (again), then enable host interrupts */
3585 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
3586 iwl4965_enable_interrupts(priv
);
3588 /* really make sure rfkill handshake bits are cleared */
3589 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3590 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3592 /* Copy original ucode data image from disk into backup cache.
3593 * This will be used to initialize the on-board processor's
3594 * data SRAM for a clean start when the runtime program first loads. */
3595 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
3596 priv
->ucode_data
.len
);
3598 /* We return success when we resume from suspend and rf_kill is on. */
3599 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
3602 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
3604 iwlcore_clear_stations_table(priv
);
3606 /* load bootstrap state machine,
3607 * load bootstrap program into processor's memory,
3608 * prepare to load the "initialize" uCode */
3609 ret
= priv
->cfg
->ops
->lib
->load_ucode(priv
);
3612 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret
);
3616 /* start card; "initialize" will load runtime ucode */
3617 iwl4965_nic_start(priv
);
3619 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
3624 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3625 __iwl4965_down(priv
);
3627 /* tried to restart and config the device for as long as our
3628 * patience could withstand */
3629 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
3634 /*****************************************************************************
3636 * Workqueue callbacks
3638 *****************************************************************************/
3640 static void iwl4965_bg_init_alive_start(struct work_struct
*data
)
3642 struct iwl_priv
*priv
=
3643 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
3645 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3648 mutex_lock(&priv
->mutex
);
3649 priv
->cfg
->ops
->lib
->init_alive_start(priv
);
3650 mutex_unlock(&priv
->mutex
);
3653 static void iwl4965_bg_alive_start(struct work_struct
*data
)
3655 struct iwl_priv
*priv
=
3656 container_of(data
, struct iwl_priv
, alive_start
.work
);
3658 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3661 mutex_lock(&priv
->mutex
);
3662 iwl4965_alive_start(priv
);
3663 mutex_unlock(&priv
->mutex
);
3666 static void iwl4965_bg_rf_kill(struct work_struct
*work
)
3668 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, rf_kill
);
3670 wake_up_interruptible(&priv
->wait_command_queue
);
3672 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3675 mutex_lock(&priv
->mutex
);
3677 if (!iwl_is_rfkill(priv
)) {
3678 IWL_DEBUG(IWL_DL_RF_KILL
,
3679 "HW and/or SW RF Kill no longer active, restarting "
3681 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3682 queue_work(priv
->workqueue
, &priv
->restart
);
3684 /* make sure mac80211 stop sending Tx frame */
3685 if (priv
->mac80211_registered
)
3686 ieee80211_stop_queues(priv
->hw
);
3688 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
3689 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
3690 "disabled by SW switch\n");
3692 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
3693 "Kill switch must be turned off for "
3694 "wireless networking to work.\n");
3696 iwl_rfkill_set_hw_state(priv
);
3698 mutex_unlock(&priv
->mutex
);
3701 static void iwl4965_bg_set_monitor(struct work_struct
*work
)
3703 struct iwl_priv
*priv
= container_of(work
,
3704 struct iwl_priv
, set_monitor
);
3706 IWL_DEBUG(IWL_DL_STATE
, "setting monitor mode\n");
3708 mutex_lock(&priv
->mutex
);
3710 if (!iwl_is_ready(priv
))
3711 IWL_DEBUG(IWL_DL_STATE
, "leave - not ready\n");
3713 if (iwl4965_set_mode(priv
, IEEE80211_IF_TYPE_MNTR
) != 0)
3714 IWL_ERROR("iwl4965_set_mode() failed\n");
3716 mutex_unlock(&priv
->mutex
);
3719 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
3721 static void iwl4965_bg_scan_check(struct work_struct
*data
)
3723 struct iwl_priv
*priv
=
3724 container_of(data
, struct iwl_priv
, scan_check
.work
);
3726 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3729 mutex_lock(&priv
->mutex
);
3730 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
3731 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3732 IWL_DEBUG(IWL_DL_SCAN
, "Scan completion watchdog resetting "
3734 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
3736 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3737 iwl4965_send_scan_abort(priv
);
3739 mutex_unlock(&priv
->mutex
);
3742 static void iwl4965_bg_request_scan(struct work_struct
*data
)
3744 struct iwl_priv
*priv
=
3745 container_of(data
, struct iwl_priv
, request_scan
);
3746 struct iwl_host_cmd cmd
= {
3747 .id
= REPLY_SCAN_CMD
,
3748 .len
= sizeof(struct iwl4965_scan_cmd
),
3749 .meta
.flags
= CMD_SIZE_HUGE
,
3751 struct iwl4965_scan_cmd
*scan
;
3752 struct ieee80211_conf
*conf
= NULL
;
3754 enum ieee80211_band band
;
3758 conf
= ieee80211_get_hw_conf(priv
->hw
);
3760 mutex_lock(&priv
->mutex
);
3762 if (!iwl_is_ready(priv
)) {
3763 IWL_WARNING("request scan called when driver not ready.\n");
3767 /* Make sure the scan wasn't cancelled before this queued work
3768 * was given the chance to run... */
3769 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
3772 /* This should never be called or scheduled if there is currently
3773 * a scan active in the hardware. */
3774 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
3775 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
3776 "Ignoring second request.\n");
3781 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
3782 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
3786 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3787 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
3791 if (iwl_is_rfkill(priv
)) {
3792 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
3796 if (!test_bit(STATUS_READY
, &priv
->status
)) {
3797 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
3801 if (!priv
->scan_bands
) {
3802 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
3807 priv
->scan
= kmalloc(sizeof(struct iwl4965_scan_cmd
) +
3808 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
3815 memset(scan
, 0, sizeof(struct iwl4965_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
3817 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
3818 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
3820 if (iwl_is_associated(priv
)) {
3823 u32 suspend_time
= 100;
3824 u32 scan_suspend_time
= 100;
3825 unsigned long flags
;
3827 IWL_DEBUG_INFO("Scanning while associated...\n");
3829 spin_lock_irqsave(&priv
->lock
, flags
);
3830 interval
= priv
->beacon_int
;
3831 spin_unlock_irqrestore(&priv
->lock
, flags
);
3833 scan
->suspend_time
= 0;
3834 scan
->max_out_time
= cpu_to_le32(200 * 1024);
3836 interval
= suspend_time
;
3838 extra
= (suspend_time
/ interval
) << 22;
3839 scan_suspend_time
= (extra
|
3840 ((suspend_time
% interval
) * 1024));
3841 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
3842 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
3843 scan_suspend_time
, interval
);
3846 /* We should add the ability for user to lock to PASSIVE ONLY */
3847 if (priv
->one_direct_scan
) {
3849 ("Kicking off one direct scan for '%s'\n",
3850 iwl4965_escape_essid(priv
->direct_ssid
,
3851 priv
->direct_ssid_len
));
3852 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
3853 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
3854 memcpy(scan
->direct_scan
[0].ssid
,
3855 priv
->direct_ssid
, priv
->direct_ssid_len
);
3857 } else if (!iwl_is_associated(priv
) && priv
->essid_len
) {
3859 ("Kicking off one direct scan for '%s' when not associated\n",
3860 iwl4965_escape_essid(priv
->essid
, priv
->essid_len
));
3861 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
3862 scan
->direct_scan
[0].len
= priv
->essid_len
;
3863 memcpy(scan
->direct_scan
[0].ssid
, priv
->essid
, priv
->essid_len
);
3866 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
3870 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
3871 scan
->tx_cmd
.sta_id
= priv
->hw_params
.bcast_sta_id
;
3872 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
3875 switch (priv
->scan_bands
) {
3877 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
3878 scan
->tx_cmd
.rate_n_flags
=
3879 iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP
,
3880 RATE_MCS_ANT_B_MSK
|RATE_MCS_CCK_MSK
);
3882 scan
->good_CRC_th
= 0;
3883 band
= IEEE80211_BAND_2GHZ
;
3887 scan
->tx_cmd
.rate_n_flags
=
3888 iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP
,
3889 RATE_MCS_ANT_B_MSK
);
3890 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
3891 band
= IEEE80211_BAND_5GHZ
;
3895 IWL_WARNING("Invalid scan band count\n");
3899 /* We don't build a direct scan probe request; the uCode will do
3900 * that based on the direct_mask added to each channel entry */
3901 cmd_len
= iwl4965_fill_probe_req(priv
, band
,
3902 (struct ieee80211_mgmt
*)scan
->data
,
3903 IWL_MAX_SCAN_SIZE
- sizeof(*scan
), 0);
3905 scan
->tx_cmd
.len
= cpu_to_le16(cmd_len
);
3906 /* select Rx chains */
3908 /* Force use of chains B and C (0x6) for scan Rx.
3909 * Avoid A (0x1) because of its off-channel reception on A-band.
3910 * MIMO is not used here, but value is required to make uCode happy. */
3911 scan
->rx_chain
= RXON_RX_CHAIN_DRIVER_FORCE_MSK
|
3912 cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS
) |
3913 (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS
) |
3914 (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS
));
3916 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
)
3917 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
3920 scan
->channel_count
=
3921 iwl4965_get_channels_for_scan(
3922 priv
, band
, 1, /* active */
3924 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
3926 scan
->channel_count
=
3927 iwl4965_get_channels_for_scan(
3928 priv
, band
, 0, /* passive */
3930 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
3932 scan
->filter_flags
|= (RXON_FILTER_ACCEPT_GRP_MSK
|
3933 RXON_FILTER_BCON_AWARE_MSK
);
3934 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
3935 scan
->channel_count
* sizeof(struct iwl4965_scan_channel
);
3937 scan
->len
= cpu_to_le16(cmd
.len
);
3939 set_bit(STATUS_SCAN_HW
, &priv
->status
);
3940 ret
= iwl_send_cmd_sync(priv
, &cmd
);
3944 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
3945 IWL_SCAN_CHECK_WATCHDOG
);
3947 mutex_unlock(&priv
->mutex
);
3951 /* inform mac80211 scan aborted */
3952 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3953 mutex_unlock(&priv
->mutex
);
3956 static void iwl4965_bg_up(struct work_struct
*data
)
3958 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, up
);
3960 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3963 mutex_lock(&priv
->mutex
);
3965 mutex_unlock(&priv
->mutex
);
3968 static void iwl4965_bg_restart(struct work_struct
*data
)
3970 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
3972 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3976 queue_work(priv
->workqueue
, &priv
->up
);
3979 static void iwl4965_bg_rx_replenish(struct work_struct
*data
)
3981 struct iwl_priv
*priv
=
3982 container_of(data
, struct iwl_priv
, rx_replenish
);
3984 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3987 mutex_lock(&priv
->mutex
);
3988 iwl_rx_replenish(priv
);
3989 mutex_unlock(&priv
->mutex
);
3992 #define IWL_DELAY_NEXT_SCAN (HZ*2)
3994 static void iwl4965_post_associate(struct iwl_priv
*priv
)
3996 struct ieee80211_conf
*conf
= NULL
;
3998 DECLARE_MAC_BUF(mac
);
4000 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
4001 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
4005 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
4007 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
4010 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4014 if (!priv
->vif
|| !priv
->is_open
)
4017 iwl4965_scan_cancel_timeout(priv
, 200);
4019 conf
= ieee80211_get_hw_conf(priv
->hw
);
4021 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4022 iwl4965_commit_rxon(priv
);
4024 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
4025 iwl4965_setup_rxon_timing(priv
);
4026 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
4027 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
4029 IWL_WARNING("REPLY_RXON_TIMING failed - "
4030 "Attempting to continue.\n");
4032 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
4034 #ifdef CONFIG_IWL4965_HT
4035 if (priv
->current_ht_config
.is_ht
)
4036 iwl_set_rxon_ht(priv
, &priv
->current_ht_config
);
4037 #endif /* CONFIG_IWL4965_HT*/
4038 iwl_set_rxon_chain(priv
);
4039 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
4041 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
4042 priv
->assoc_id
, priv
->beacon_int
);
4044 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
4045 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
4047 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
4049 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
4050 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
4051 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
4053 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
4055 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
4056 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
4060 iwl4965_commit_rxon(priv
);
4062 switch (priv
->iw_mode
) {
4063 case IEEE80211_IF_TYPE_STA
:
4064 iwl4965_rate_scale_init(priv
->hw
, IWL_AP_ID
);
4067 case IEEE80211_IF_TYPE_IBSS
:
4069 /* clear out the station table */
4070 iwlcore_clear_stations_table(priv
);
4072 iwl_rxon_add_station(priv
, iwl_bcast_addr
, 0);
4073 iwl_rxon_add_station(priv
, priv
->bssid
, 0);
4074 iwl4965_rate_scale_init(priv
->hw
, IWL_STA_ID
);
4075 iwl4965_send_beacon_cmd(priv
);
4080 IWL_ERROR("%s Should not be called in %d mode\n",
4081 __FUNCTION__
, priv
->iw_mode
);
4085 iwl4965_sequence_reset(priv
);
4087 /* Enable Rx differential gain and sensitivity calibrations */
4088 iwl_chain_noise_reset(priv
);
4089 priv
->start_calib
= 1;
4091 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
4092 priv
->assoc_station_added
= 1;
4094 iwl4965_activate_qos(priv
, 0);
4096 iwl_power_update_mode(priv
, 0);
4097 /* we have just associated, don't start scan too early */
4098 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
4102 static void iwl4965_bg_post_associate(struct work_struct
*data
)
4104 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
,
4105 post_associate
.work
);
4107 mutex_lock(&priv
->mutex
);
4108 iwl4965_post_associate(priv
);
4109 mutex_unlock(&priv
->mutex
);
4113 static void iwl4965_bg_abort_scan(struct work_struct
*work
)
4115 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, abort_scan
);
4117 if (!iwl_is_ready(priv
))
4120 mutex_lock(&priv
->mutex
);
4122 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
4123 iwl4965_send_scan_abort(priv
);
4125 mutex_unlock(&priv
->mutex
);
4128 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
4130 static void iwl4965_bg_scan_completed(struct work_struct
*work
)
4132 struct iwl_priv
*priv
=
4133 container_of(work
, struct iwl_priv
, scan_completed
);
4135 IWL_DEBUG(IWL_DL_SCAN
, "SCAN complete scan\n");
4137 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4140 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
4141 iwl4965_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
4143 ieee80211_scan_completed(priv
->hw
);
4145 /* Since setting the TXPOWER may have been deferred while
4146 * performing the scan, fire one off */
4147 mutex_lock(&priv
->mutex
);
4148 iwl4965_hw_reg_send_txpower(priv
);
4149 mutex_unlock(&priv
->mutex
);
4152 /*****************************************************************************
4154 * mac80211 entry point functions
4156 *****************************************************************************/
4158 #define UCODE_READY_TIMEOUT (2 * HZ)
4160 static int iwl4965_mac_start(struct ieee80211_hw
*hw
)
4162 struct iwl_priv
*priv
= hw
->priv
;
4165 IWL_DEBUG_MAC80211("enter\n");
4167 if (pci_enable_device(priv
->pci_dev
)) {
4168 IWL_ERROR("Fail to pci_enable_device\n");
4171 pci_restore_state(priv
->pci_dev
);
4172 pci_enable_msi(priv
->pci_dev
);
4174 ret
= request_irq(priv
->pci_dev
->irq
, iwl4965_isr
, IRQF_SHARED
,
4177 IWL_ERROR("Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
4178 goto out_disable_msi
;
4181 /* we should be verifying the device is ready to be opened */
4182 mutex_lock(&priv
->mutex
);
4184 memset(&priv
->staging_rxon
, 0, sizeof(struct iwl_rxon_cmd
));
4185 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
4186 * ucode filename and max sizes are card-specific. */
4188 if (!priv
->ucode_code
.len
) {
4189 ret
= iwl4965_read_ucode(priv
);
4191 IWL_ERROR("Could not read microcode: %d\n", ret
);
4192 mutex_unlock(&priv
->mutex
);
4193 goto out_release_irq
;
4197 ret
= __iwl4965_up(priv
);
4199 mutex_unlock(&priv
->mutex
);
4202 goto out_release_irq
;
4204 IWL_DEBUG_INFO("Start UP work done.\n");
4206 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
4209 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
4210 * mac80211 will not be run successfully. */
4211 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
4212 test_bit(STATUS_READY
, &priv
->status
),
4213 UCODE_READY_TIMEOUT
);
4215 if (!test_bit(STATUS_READY
, &priv
->status
)) {
4216 IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
4217 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
4219 goto out_release_irq
;
4224 IWL_DEBUG_MAC80211("leave\n");
4228 free_irq(priv
->pci_dev
->irq
, priv
);
4230 pci_disable_msi(priv
->pci_dev
);
4231 pci_disable_device(priv
->pci_dev
);
4233 IWL_DEBUG_MAC80211("leave - failed\n");
4237 static void iwl4965_mac_stop(struct ieee80211_hw
*hw
)
4239 struct iwl_priv
*priv
= hw
->priv
;
4241 IWL_DEBUG_MAC80211("enter\n");
4243 if (!priv
->is_open
) {
4244 IWL_DEBUG_MAC80211("leave - skip\n");
4250 if (iwl_is_ready_rf(priv
)) {
4251 /* stop mac, cancel any scan request and clear
4252 * RXON_FILTER_ASSOC_MSK BIT
4254 mutex_lock(&priv
->mutex
);
4255 iwl4965_scan_cancel_timeout(priv
, 100);
4256 cancel_delayed_work(&priv
->post_associate
);
4257 mutex_unlock(&priv
->mutex
);
4262 flush_workqueue(priv
->workqueue
);
4263 free_irq(priv
->pci_dev
->irq
, priv
);
4264 pci_disable_msi(priv
->pci_dev
);
4265 pci_save_state(priv
->pci_dev
);
4266 pci_disable_device(priv
->pci_dev
);
4268 IWL_DEBUG_MAC80211("leave\n");
4271 static int iwl4965_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
4272 struct ieee80211_tx_control
*ctl
)
4274 struct iwl_priv
*priv
= hw
->priv
;
4276 IWL_DEBUG_MAC80211("enter\n");
4278 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
4279 IWL_DEBUG_MAC80211("leave - monitor\n");
4283 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
4284 ctl
->tx_rate
->bitrate
);
4286 if (iwl_tx_skb(priv
, skb
, ctl
))
4287 dev_kfree_skb_any(skb
);
4289 IWL_DEBUG_MAC80211("leave\n");
4293 static int iwl4965_mac_add_interface(struct ieee80211_hw
*hw
,
4294 struct ieee80211_if_init_conf
*conf
)
4296 struct iwl_priv
*priv
= hw
->priv
;
4297 unsigned long flags
;
4298 DECLARE_MAC_BUF(mac
);
4300 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
4303 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
4307 spin_lock_irqsave(&priv
->lock
, flags
);
4308 priv
->vif
= conf
->vif
;
4310 spin_unlock_irqrestore(&priv
->lock
, flags
);
4312 mutex_lock(&priv
->mutex
);
4314 if (conf
->mac_addr
) {
4315 IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac
, conf
->mac_addr
));
4316 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
4319 if (iwl_is_ready(priv
))
4320 iwl4965_set_mode(priv
, conf
->type
);
4322 mutex_unlock(&priv
->mutex
);
4324 IWL_DEBUG_MAC80211("leave\n");
4329 * iwl4965_mac_config - mac80211 config callback
4331 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
4332 * be set inappropriately and the driver currently sets the hardware up to
4333 * use it whenever needed.
4335 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
4337 struct iwl_priv
*priv
= hw
->priv
;
4338 const struct iwl_channel_info
*ch_info
;
4339 unsigned long flags
;
4342 mutex_lock(&priv
->mutex
);
4343 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
4345 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
4347 if (!iwl_is_ready(priv
)) {
4348 IWL_DEBUG_MAC80211("leave - not ready\n");
4353 if (unlikely(!priv
->cfg
->mod_params
->disable_hw_scan
&&
4354 test_bit(STATUS_SCANNING
, &priv
->status
))) {
4355 IWL_DEBUG_MAC80211("leave - scanning\n");
4356 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
4357 mutex_unlock(&priv
->mutex
);
4361 spin_lock_irqsave(&priv
->lock
, flags
);
4363 ch_info
= iwl_get_channel_info(priv
, conf
->channel
->band
,
4364 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
4365 if (!is_channel_valid(ch_info
)) {
4366 IWL_DEBUG_MAC80211("leave - invalid channel\n");
4367 spin_unlock_irqrestore(&priv
->lock
, flags
);
4372 #ifdef CONFIG_IWL4965_HT
4373 /* if we are switching from ht to 2.4 clear flags
4374 * from any ht related info since 2.4 does not
4376 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != conf
->channel
->hw_value
)
4377 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
4378 && !(conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
)
4381 priv
->staging_rxon
.flags
= 0;
4382 #endif /* CONFIG_IWL4965_HT */
4384 iwl_set_rxon_channel(priv
, conf
->channel
->band
,
4385 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
4387 iwl4965_set_flags_for_phymode(priv
, conf
->channel
->band
);
4389 /* The list of supported rates and rate mask can be different
4390 * for each band; since the band may have changed, reset
4391 * the rate mask to what mac80211 lists */
4392 iwl4965_set_rate(priv
);
4394 spin_unlock_irqrestore(&priv
->lock
, flags
);
4396 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
4397 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
4398 iwl4965_hw_channel_switch(priv
, conf
->channel
);
4403 if (priv
->cfg
->ops
->lib
->radio_kill_sw
)
4404 priv
->cfg
->ops
->lib
->radio_kill_sw(priv
, !conf
->radio_enabled
);
4406 if (!conf
->radio_enabled
) {
4407 IWL_DEBUG_MAC80211("leave - radio disabled\n");
4411 if (iwl_is_rfkill(priv
)) {
4412 IWL_DEBUG_MAC80211("leave - RF kill\n");
4417 iwl4965_set_rate(priv
);
4419 if (memcmp(&priv
->active_rxon
,
4420 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
4421 iwl4965_commit_rxon(priv
);
4423 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
4425 IWL_DEBUG_MAC80211("leave\n");
4428 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
4429 mutex_unlock(&priv
->mutex
);
4433 static void iwl4965_config_ap(struct iwl_priv
*priv
)
4437 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4440 /* The following should be done only at AP bring up */
4441 if ((priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) == 0) {
4443 /* RXON - unassoc (to set timing command) */
4444 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4445 iwl4965_commit_rxon(priv
);
4448 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
4449 iwl4965_setup_rxon_timing(priv
);
4450 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
4451 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
4453 IWL_WARNING("REPLY_RXON_TIMING failed - "
4454 "Attempting to continue.\n");
4456 iwl_set_rxon_chain(priv
);
4458 /* FIXME: what should be the assoc_id for AP? */
4459 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
4460 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
4461 priv
->staging_rxon
.flags
|=
4462 RXON_FLG_SHORT_PREAMBLE_MSK
;
4464 priv
->staging_rxon
.flags
&=
4465 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
4467 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
4468 if (priv
->assoc_capability
&
4469 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
4470 priv
->staging_rxon
.flags
|=
4471 RXON_FLG_SHORT_SLOT_MSK
;
4473 priv
->staging_rxon
.flags
&=
4474 ~RXON_FLG_SHORT_SLOT_MSK
;
4476 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
4477 priv
->staging_rxon
.flags
&=
4478 ~RXON_FLG_SHORT_SLOT_MSK
;
4480 /* restore RXON assoc */
4481 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
4482 iwl4965_commit_rxon(priv
);
4483 iwl4965_activate_qos(priv
, 1);
4484 iwl_rxon_add_station(priv
, iwl_bcast_addr
, 0);
4486 iwl4965_send_beacon_cmd(priv
);
4488 /* FIXME - we need to add code here to detect a totally new
4489 * configuration, reset the AP, unassoc, rxon timing, assoc,
4490 * clear sta table, add BCAST sta... */
4493 static int iwl4965_mac_config_interface(struct ieee80211_hw
*hw
,
4494 struct ieee80211_vif
*vif
,
4495 struct ieee80211_if_conf
*conf
)
4497 struct iwl_priv
*priv
= hw
->priv
;
4498 DECLARE_MAC_BUF(mac
);
4499 unsigned long flags
;
4505 if (priv
->vif
!= vif
) {
4506 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
4510 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
4511 (!conf
->beacon
|| !conf
->ssid_len
)) {
4513 ("Leaving in AP mode because HostAPD is not ready.\n");
4517 if (!iwl_is_alive(priv
))
4520 mutex_lock(&priv
->mutex
);
4523 IWL_DEBUG_MAC80211("bssid: %s\n",
4524 print_mac(mac
, conf
->bssid
));
4527 * very dubious code was here; the probe filtering flag is never set:
4529 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
4530 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
4533 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
4535 conf
->bssid
= priv
->mac_addr
;
4536 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
4537 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
4538 print_mac(mac
, conf
->bssid
));
4540 if (priv
->ibss_beacon
)
4541 dev_kfree_skb(priv
->ibss_beacon
);
4543 priv
->ibss_beacon
= conf
->beacon
;
4546 if (iwl_is_rfkill(priv
))
4549 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
4550 !is_multicast_ether_addr(conf
->bssid
)) {
4551 /* If there is currently a HW scan going on in the background
4552 * then we need to cancel it else the RXON below will fail. */
4553 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
4554 IWL_WARNING("Aborted scan still in progress "
4556 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
4557 mutex_unlock(&priv
->mutex
);
4560 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
4562 /* TODO: Audit driver for usage of these members and see
4563 * if mac80211 deprecates them (priv->bssid looks like it
4564 * shouldn't be there, but I haven't scanned the IBSS code
4565 * to verify) - jpk */
4566 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
4568 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
4569 iwl4965_config_ap(priv
);
4571 rc
= iwl4965_commit_rxon(priv
);
4572 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
4573 iwl_rxon_add_station(
4574 priv
, priv
->active_rxon
.bssid_addr
, 1);
4578 iwl4965_scan_cancel_timeout(priv
, 100);
4579 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4580 iwl4965_commit_rxon(priv
);
4584 spin_lock_irqsave(&priv
->lock
, flags
);
4585 if (!conf
->ssid_len
)
4586 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
4588 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
4590 priv
->essid_len
= conf
->ssid_len
;
4591 spin_unlock_irqrestore(&priv
->lock
, flags
);
4593 IWL_DEBUG_MAC80211("leave\n");
4594 mutex_unlock(&priv
->mutex
);
4599 static void iwl4965_configure_filter(struct ieee80211_hw
*hw
,
4600 unsigned int changed_flags
,
4601 unsigned int *total_flags
,
4602 int mc_count
, struct dev_addr_list
*mc_list
)
4606 * see also iwl4965_connection_init_rx_config
4608 struct iwl_priv
*priv
= hw
->priv
;
4610 if (changed_flags
& (FIF_PROMISC_IN_BSS
| FIF_OTHER_BSS
)) {
4611 if (*total_flags
& (FIF_PROMISC_IN_BSS
| FIF_OTHER_BSS
)) {
4612 IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n",
4613 IEEE80211_IF_TYPE_MNTR
,
4614 changed_flags
, *total_flags
);
4615 /* queue work 'cuz mac80211 is holding a lock which
4616 * prevents us from issuing (synchronous) f/w cmds */
4617 queue_work(priv
->workqueue
, &priv
->set_monitor
);
4618 new_flags
&= FIF_PROMISC_IN_BSS
|
4623 *total_flags
= new_flags
;
4626 static void iwl4965_mac_remove_interface(struct ieee80211_hw
*hw
,
4627 struct ieee80211_if_init_conf
*conf
)
4629 struct iwl_priv
*priv
= hw
->priv
;
4631 IWL_DEBUG_MAC80211("enter\n");
4633 mutex_lock(&priv
->mutex
);
4635 if (iwl_is_ready_rf(priv
)) {
4636 iwl4965_scan_cancel_timeout(priv
, 100);
4637 cancel_delayed_work(&priv
->post_associate
);
4638 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4639 iwl4965_commit_rxon(priv
);
4641 if (priv
->vif
== conf
->vif
) {
4643 memset(priv
->bssid
, 0, ETH_ALEN
);
4644 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
4645 priv
->essid_len
= 0;
4647 mutex_unlock(&priv
->mutex
);
4649 IWL_DEBUG_MAC80211("leave\n");
4653 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
4654 static void iwl4965_bss_info_changed(struct ieee80211_hw
*hw
,
4655 struct ieee80211_vif
*vif
,
4656 struct ieee80211_bss_conf
*bss_conf
,
4659 struct iwl_priv
*priv
= hw
->priv
;
4661 IWL_DEBUG_MAC80211("changes = 0x%X\n", changes
);
4663 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
4664 IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
4665 bss_conf
->use_short_preamble
);
4666 if (bss_conf
->use_short_preamble
)
4667 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
4669 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
4672 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
4673 IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf
->use_cts_prot
);
4674 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
4675 priv
->staging_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
4677 priv
->staging_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
4680 if (changes
& BSS_CHANGED_HT
) {
4681 IWL_DEBUG_MAC80211("HT %d\n", bss_conf
->assoc_ht
);
4682 iwl4965_ht_conf(priv
, bss_conf
);
4683 iwl_set_rxon_chain(priv
);
4686 if (changes
& BSS_CHANGED_ASSOC
) {
4687 IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf
->assoc
);
4688 /* This should never happen as this function should
4689 * never be called from interrupt context. */
4690 if (WARN_ON_ONCE(in_interrupt()))
4692 if (bss_conf
->assoc
) {
4693 priv
->assoc_id
= bss_conf
->aid
;
4694 priv
->beacon_int
= bss_conf
->beacon_int
;
4695 priv
->timestamp
= bss_conf
->timestamp
;
4696 priv
->assoc_capability
= bss_conf
->assoc_capability
;
4697 priv
->next_scan_jiffies
= jiffies
+
4698 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC
;
4699 mutex_lock(&priv
->mutex
);
4700 iwl4965_post_associate(priv
);
4701 mutex_unlock(&priv
->mutex
);
4704 IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf
->assoc
);
4706 } else if (changes
&& iwl_is_associated(priv
) && priv
->assoc_id
) {
4707 IWL_DEBUG_MAC80211("Associated Changes %d\n", changes
);
4708 iwl_send_rxon_assoc(priv
);
4713 static int iwl4965_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
4716 unsigned long flags
;
4717 struct iwl_priv
*priv
= hw
->priv
;
4719 IWL_DEBUG_MAC80211("enter\n");
4721 mutex_lock(&priv
->mutex
);
4722 spin_lock_irqsave(&priv
->lock
, flags
);
4724 if (!iwl_is_ready_rf(priv
)) {
4726 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
4730 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
4732 IWL_ERROR("ERROR: APs don't scan\n");
4736 /* we don't schedule scan within next_scan_jiffies period */
4737 if (priv
->next_scan_jiffies
&&
4738 time_after(priv
->next_scan_jiffies
, jiffies
)) {
4742 /* if we just finished scan ask for delay */
4743 if (priv
->last_scan_jiffies
&& time_after(priv
->last_scan_jiffies
+
4744 IWL_DELAY_NEXT_SCAN
, jiffies
)) {
4749 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
4750 iwl4965_escape_essid(ssid
, len
), (int)len
);
4752 priv
->one_direct_scan
= 1;
4753 priv
->direct_ssid_len
= (u8
)
4754 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
4755 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
4757 priv
->one_direct_scan
= 0;
4759 rc
= iwl4965_scan_initiate(priv
);
4761 IWL_DEBUG_MAC80211("leave\n");
4764 spin_unlock_irqrestore(&priv
->lock
, flags
);
4765 mutex_unlock(&priv
->mutex
);
4770 static void iwl4965_mac_update_tkip_key(struct ieee80211_hw
*hw
,
4771 struct ieee80211_key_conf
*keyconf
, const u8
*addr
,
4772 u32 iv32
, u16
*phase1key
)
4774 struct iwl_priv
*priv
= hw
->priv
;
4775 u8 sta_id
= IWL_INVALID_STATION
;
4776 unsigned long flags
;
4777 __le16 key_flags
= 0;
4779 DECLARE_MAC_BUF(mac
);
4781 IWL_DEBUG_MAC80211("enter\n");
4783 sta_id
= iwl_find_station(priv
, addr
);
4784 if (sta_id
== IWL_INVALID_STATION
) {
4785 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
4786 print_mac(mac
, addr
));
4790 iwl4965_scan_cancel_timeout(priv
, 100);
4792 key_flags
|= (STA_KEY_FLG_TKIP
| STA_KEY_FLG_MAP_KEY_MSK
);
4793 key_flags
|= cpu_to_le16(keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
4794 key_flags
&= ~STA_KEY_FLG_INVALID
;
4796 if (sta_id
== priv
->hw_params
.bcast_sta_id
)
4797 key_flags
|= STA_KEY_MULTICAST_MSK
;
4799 spin_lock_irqsave(&priv
->sta_lock
, flags
);
4801 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
4802 priv
->stations
[sta_id
].sta
.key
.tkip_rx_tsc_byte2
= (u8
) iv32
;
4804 for (i
= 0; i
< 5; i
++)
4805 priv
->stations
[sta_id
].sta
.key
.tkip_rx_ttak
[i
] =
4806 cpu_to_le16(phase1key
[i
]);
4808 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
4809 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
4811 iwl_send_add_sta(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
4813 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
4815 IWL_DEBUG_MAC80211("leave\n");
4818 static int iwl4965_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
4819 const u8
*local_addr
, const u8
*addr
,
4820 struct ieee80211_key_conf
*key
)
4822 struct iwl_priv
*priv
= hw
->priv
;
4823 DECLARE_MAC_BUF(mac
);
4825 u8 sta_id
= IWL_INVALID_STATION
;
4826 u8 is_default_wep_key
= 0;
4828 IWL_DEBUG_MAC80211("enter\n");
4830 if (priv
->hw_params
.sw_crypto
) {
4831 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
4835 if (is_zero_ether_addr(addr
))
4836 /* only support pairwise keys */
4839 sta_id
= iwl_find_station(priv
, addr
);
4840 if (sta_id
== IWL_INVALID_STATION
) {
4841 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
4842 print_mac(mac
, addr
));
4847 mutex_lock(&priv
->mutex
);
4848 iwl4965_scan_cancel_timeout(priv
, 100);
4849 mutex_unlock(&priv
->mutex
);
4851 /* If we are getting WEP group key and we didn't receive any key mapping
4852 * so far, we are in legacy wep mode (group key only), otherwise we are
4854 * In legacy wep mode, we use another host command to the uCode */
4855 if (key
->alg
== ALG_WEP
&& sta_id
== priv
->hw_params
.bcast_sta_id
&&
4856 priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
4858 is_default_wep_key
= !priv
->key_mapping_key
;
4860 is_default_wep_key
=
4861 (key
->hw_key_idx
== HW_KEY_DEFAULT
);
4866 if (is_default_wep_key
)
4867 ret
= iwl_set_default_wep_key(priv
, key
);
4869 ret
= iwl_set_dynamic_key(priv
, key
, sta_id
);
4871 IWL_DEBUG_MAC80211("enable hwcrypto key\n");
4874 if (is_default_wep_key
)
4875 ret
= iwl_remove_default_wep_key(priv
, key
);
4877 ret
= iwl_remove_dynamic_key(priv
, key
, sta_id
);
4879 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
4885 IWL_DEBUG_MAC80211("leave\n");
4890 static int iwl4965_mac_conf_tx(struct ieee80211_hw
*hw
, u16 queue
,
4891 const struct ieee80211_tx_queue_params
*params
)
4893 struct iwl_priv
*priv
= hw
->priv
;
4894 unsigned long flags
;
4897 IWL_DEBUG_MAC80211("enter\n");
4899 if (!iwl_is_ready_rf(priv
)) {
4900 IWL_DEBUG_MAC80211("leave - RF not ready\n");
4904 if (queue
>= AC_NUM
) {
4905 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
4909 if (!priv
->qos_data
.qos_enable
) {
4910 priv
->qos_data
.qos_active
= 0;
4911 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
4914 q
= AC_NUM
- 1 - queue
;
4916 spin_lock_irqsave(&priv
->lock
, flags
);
4918 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
4919 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
4920 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
4921 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
4922 cpu_to_le16((params
->txop
* 32));
4924 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
4925 priv
->qos_data
.qos_active
= 1;
4927 spin_unlock_irqrestore(&priv
->lock
, flags
);
4929 mutex_lock(&priv
->mutex
);
4930 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
4931 iwl4965_activate_qos(priv
, 1);
4932 else if (priv
->assoc_id
&& iwl_is_associated(priv
))
4933 iwl4965_activate_qos(priv
, 0);
4935 mutex_unlock(&priv
->mutex
);
4937 IWL_DEBUG_MAC80211("leave\n");
4941 static int iwl4965_mac_get_tx_stats(struct ieee80211_hw
*hw
,
4942 struct ieee80211_tx_queue_stats
*stats
)
4944 struct iwl_priv
*priv
= hw
->priv
;
4946 struct iwl_tx_queue
*txq
;
4947 struct iwl_queue
*q
;
4948 unsigned long flags
;
4950 IWL_DEBUG_MAC80211("enter\n");
4952 if (!iwl_is_ready_rf(priv
)) {
4953 IWL_DEBUG_MAC80211("leave - RF not ready\n");
4957 spin_lock_irqsave(&priv
->lock
, flags
);
4959 for (i
= 0; i
< AC_NUM
; i
++) {
4960 txq
= &priv
->txq
[i
];
4962 avail
= iwl_queue_space(q
);
4964 stats
[i
].len
= q
->n_window
- avail
;
4965 stats
[i
].limit
= q
->n_window
- q
->high_mark
;
4966 stats
[i
].count
= q
->n_window
;
4969 spin_unlock_irqrestore(&priv
->lock
, flags
);
4971 IWL_DEBUG_MAC80211("leave\n");
4976 static int iwl4965_mac_get_stats(struct ieee80211_hw
*hw
,
4977 struct ieee80211_low_level_stats
*stats
)
4979 struct iwl_priv
*priv
= hw
->priv
;
4982 IWL_DEBUG_MAC80211("enter\n");
4983 IWL_DEBUG_MAC80211("leave\n");
4988 static u64
iwl4965_mac_get_tsf(struct ieee80211_hw
*hw
)
4990 struct iwl_priv
*priv
;
4993 IWL_DEBUG_MAC80211("enter\n");
4994 IWL_DEBUG_MAC80211("leave\n");
4999 static void iwl4965_mac_reset_tsf(struct ieee80211_hw
*hw
)
5001 struct iwl_priv
*priv
= hw
->priv
;
5002 unsigned long flags
;
5004 mutex_lock(&priv
->mutex
);
5005 IWL_DEBUG_MAC80211("enter\n");
5007 priv
->lq_mngr
.lq_ready
= 0;
5008 #ifdef CONFIG_IWL4965_HT
5009 spin_lock_irqsave(&priv
->lock
, flags
);
5010 memset(&priv
->current_ht_config
, 0, sizeof(struct iwl_ht_info
));
5011 spin_unlock_irqrestore(&priv
->lock
, flags
);
5012 #endif /* CONFIG_IWL4965_HT */
5014 iwl_reset_qos(priv
);
5016 cancel_delayed_work(&priv
->post_associate
);
5018 spin_lock_irqsave(&priv
->lock
, flags
);
5020 priv
->assoc_capability
= 0;
5021 priv
->assoc_station_added
= 0;
5023 /* new association get rid of ibss beacon skb */
5024 if (priv
->ibss_beacon
)
5025 dev_kfree_skb(priv
->ibss_beacon
);
5027 priv
->ibss_beacon
= NULL
;
5029 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
5030 priv
->timestamp
= 0;
5031 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
5032 priv
->beacon_int
= 0;
5034 spin_unlock_irqrestore(&priv
->lock
, flags
);
5036 if (!iwl_is_ready_rf(priv
)) {
5037 IWL_DEBUG_MAC80211("leave - not ready\n");
5038 mutex_unlock(&priv
->mutex
);
5042 /* we are restarting association process
5043 * clear RXON_FILTER_ASSOC_MSK bit
5045 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
5046 iwl4965_scan_cancel_timeout(priv
, 100);
5047 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5048 iwl4965_commit_rxon(priv
);
5051 iwl_power_update_mode(priv
, 0);
5053 /* Per mac80211.h: This is only used in IBSS mode... */
5054 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
5056 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
5057 mutex_unlock(&priv
->mutex
);
5061 iwl4965_set_rate(priv
);
5063 mutex_unlock(&priv
->mutex
);
5065 IWL_DEBUG_MAC80211("leave\n");
5068 static int iwl4965_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
5069 struct ieee80211_tx_control
*control
)
5071 struct iwl_priv
*priv
= hw
->priv
;
5072 unsigned long flags
;
5074 mutex_lock(&priv
->mutex
);
5075 IWL_DEBUG_MAC80211("enter\n");
5077 if (!iwl_is_ready_rf(priv
)) {
5078 IWL_DEBUG_MAC80211("leave - RF not ready\n");
5079 mutex_unlock(&priv
->mutex
);
5083 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
5084 IWL_DEBUG_MAC80211("leave - not IBSS\n");
5085 mutex_unlock(&priv
->mutex
);
5089 spin_lock_irqsave(&priv
->lock
, flags
);
5091 if (priv
->ibss_beacon
)
5092 dev_kfree_skb(priv
->ibss_beacon
);
5094 priv
->ibss_beacon
= skb
;
5098 IWL_DEBUG_MAC80211("leave\n");
5099 spin_unlock_irqrestore(&priv
->lock
, flags
);
5101 iwl_reset_qos(priv
);
5103 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
5105 mutex_unlock(&priv
->mutex
);
5110 /*****************************************************************************
5114 *****************************************************************************/
5116 #ifdef CONFIG_IWLWIFI_DEBUG
5119 * The following adds a new attribute to the sysfs representation
5120 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
5121 * used for controlling the debug level.
5123 * See the level definitions in iwl for details.
5126 static ssize_t
show_debug_level(struct device
*d
,
5127 struct device_attribute
*attr
, char *buf
)
5129 struct iwl_priv
*priv
= d
->driver_data
;
5131 return sprintf(buf
, "0x%08X\n", priv
->debug_level
);
5133 static ssize_t
store_debug_level(struct device
*d
,
5134 struct device_attribute
*attr
,
5135 const char *buf
, size_t count
)
5137 struct iwl_priv
*priv
= d
->driver_data
;
5138 char *p
= (char *)buf
;
5141 val
= simple_strtoul(p
, &p
, 0);
5143 printk(KERN_INFO DRV_NAME
5144 ": %s is not in hex or decimal form.\n", buf
);
5146 priv
->debug_level
= val
;
5148 return strnlen(buf
, count
);
5151 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
5152 show_debug_level
, store_debug_level
);
5155 #endif /* CONFIG_IWLWIFI_DEBUG */
5158 static ssize_t
show_version(struct device
*d
,
5159 struct device_attribute
*attr
, char *buf
)
5161 struct iwl_priv
*priv
= d
->driver_data
;
5162 struct iwl4965_alive_resp
*palive
= &priv
->card_alive
;
5164 if (palive
->is_valid
)
5165 return sprintf(buf
, "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n"
5166 "fw type: 0x%01X 0x%01X\n",
5167 palive
->ucode_major
, palive
->ucode_minor
,
5168 palive
->sw_rev
[0], palive
->sw_rev
[1],
5169 palive
->ver_type
, palive
->ver_subtype
);
5172 return sprintf(buf
, "fw not loaded\n");
5175 static DEVICE_ATTR(version
, S_IWUSR
| S_IRUGO
, show_version
, NULL
);
5177 static ssize_t
show_temperature(struct device
*d
,
5178 struct device_attribute
*attr
, char *buf
)
5180 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5182 if (!iwl_is_alive(priv
))
5185 return sprintf(buf
, "%d\n", iwl4965_hw_get_temperature(priv
));
5188 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
5190 static ssize_t
show_rs_window(struct device
*d
,
5191 struct device_attribute
*attr
,
5194 struct iwl_priv
*priv
= d
->driver_data
;
5195 return iwl4965_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
5197 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
5199 static ssize_t
show_tx_power(struct device
*d
,
5200 struct device_attribute
*attr
, char *buf
)
5202 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5203 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
5206 static ssize_t
store_tx_power(struct device
*d
,
5207 struct device_attribute
*attr
,
5208 const char *buf
, size_t count
)
5210 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5211 char *p
= (char *)buf
;
5214 val
= simple_strtoul(p
, &p
, 10);
5216 printk(KERN_INFO DRV_NAME
5217 ": %s is not in decimal form.\n", buf
);
5219 iwl4965_hw_reg_set_txpower(priv
, val
);
5224 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
5226 static ssize_t
show_flags(struct device
*d
,
5227 struct device_attribute
*attr
, char *buf
)
5229 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5231 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
5234 static ssize_t
store_flags(struct device
*d
,
5235 struct device_attribute
*attr
,
5236 const char *buf
, size_t count
)
5238 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5239 u32 flags
= simple_strtoul(buf
, NULL
, 0);
5241 mutex_lock(&priv
->mutex
);
5242 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
5243 /* Cancel any currently running scans... */
5244 if (iwl4965_scan_cancel_timeout(priv
, 100))
5245 IWL_WARNING("Could not cancel scan.\n");
5247 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
5249 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
5250 iwl4965_commit_rxon(priv
);
5253 mutex_unlock(&priv
->mutex
);
5258 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
5260 static ssize_t
show_filter_flags(struct device
*d
,
5261 struct device_attribute
*attr
, char *buf
)
5263 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5265 return sprintf(buf
, "0x%04X\n",
5266 le32_to_cpu(priv
->active_rxon
.filter_flags
));
5269 static ssize_t
store_filter_flags(struct device
*d
,
5270 struct device_attribute
*attr
,
5271 const char *buf
, size_t count
)
5273 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5274 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
5276 mutex_lock(&priv
->mutex
);
5277 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
5278 /* Cancel any currently running scans... */
5279 if (iwl4965_scan_cancel_timeout(priv
, 100))
5280 IWL_WARNING("Could not cancel scan.\n");
5282 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
5283 "0x%04X\n", filter_flags
);
5284 priv
->staging_rxon
.filter_flags
=
5285 cpu_to_le32(filter_flags
);
5286 iwl4965_commit_rxon(priv
);
5289 mutex_unlock(&priv
->mutex
);
5294 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
5295 store_filter_flags
);
5297 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
5299 static ssize_t
show_measurement(struct device
*d
,
5300 struct device_attribute
*attr
, char *buf
)
5302 struct iwl_priv
*priv
= dev_get_drvdata(d
);
5303 struct iwl4965_spectrum_notification measure_report
;
5304 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
5305 u8
*data
= (u8
*) & measure_report
;
5306 unsigned long flags
;
5308 spin_lock_irqsave(&priv
->lock
, flags
);
5309 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
5310 spin_unlock_irqrestore(&priv
->lock
, flags
);
5313 memcpy(&measure_report
, &priv
->measure_report
, size
);
5314 priv
->measurement_status
= 0;
5315 spin_unlock_irqrestore(&priv
->lock
, flags
);
5317 while (size
&& (PAGE_SIZE
- len
)) {
5318 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
5319 PAGE_SIZE
- len
, 1);
5321 if (PAGE_SIZE
- len
)
5325 size
-= min(size
, 16U);
5331 static ssize_t
store_measurement(struct device
*d
,
5332 struct device_attribute
*attr
,
5333 const char *buf
, size_t count
)
5335 struct iwl_priv
*priv
= dev_get_drvdata(d
);
5336 struct ieee80211_measurement_params params
= {
5337 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
5338 .start_time
= cpu_to_le64(priv
->last_tsf
),
5339 .duration
= cpu_to_le16(1),
5341 u8 type
= IWL_MEASURE_BASIC
;
5347 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
5348 channel
= simple_strtoul(p
, NULL
, 0);
5350 params
.channel
= channel
;
5353 while (*p
&& *p
!= ' ')
5356 type
= simple_strtoul(p
+ 1, NULL
, 0);
5359 IWL_DEBUG_INFO("Invoking measurement of type %d on "
5360 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
5361 iwl4965_get_measurement(priv
, ¶ms
, type
);
5366 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
5367 show_measurement
, store_measurement
);
5368 #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
5370 static ssize_t
store_retry_rate(struct device
*d
,
5371 struct device_attribute
*attr
,
5372 const char *buf
, size_t count
)
5374 struct iwl_priv
*priv
= dev_get_drvdata(d
);
5376 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
5377 if (priv
->retry_rate
<= 0)
5378 priv
->retry_rate
= 1;
5383 static ssize_t
show_retry_rate(struct device
*d
,
5384 struct device_attribute
*attr
, char *buf
)
5386 struct iwl_priv
*priv
= dev_get_drvdata(d
);
5387 return sprintf(buf
, "%d", priv
->retry_rate
);
5390 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
5393 static ssize_t
store_power_level(struct device
*d
,
5394 struct device_attribute
*attr
,
5395 const char *buf
, size_t count
)
5397 struct iwl_priv
*priv
= dev_get_drvdata(d
);
5401 mode
= simple_strtoul(buf
, NULL
, 0);
5402 mutex_lock(&priv
->mutex
);
5404 if (!iwl_is_ready(priv
)) {
5409 rc
= iwl_power_set_user_mode(priv
, mode
);
5411 IWL_DEBUG_MAC80211("failed setting power mode.\n");
5417 mutex_unlock(&priv
->mutex
);
5421 #define MAX_WX_STRING 80
5423 /* Values are in microsecond */
5424 static const s32 timeout_duration
[] = {
5431 static const s32 period_duration
[] = {
5439 static ssize_t
show_power_level(struct device
*d
,
5440 struct device_attribute
*attr
, char *buf
)
5442 struct iwl_priv
*priv
= dev_get_drvdata(d
);
5443 int level
= priv
->power_data
.power_mode
;
5446 p
+= sprintf(p
, "%d ", level
);
5448 case IWL_POWER_MODE_CAM
:
5450 p
+= sprintf(p
, "(AC)");
5452 case IWL_POWER_BATTERY
:
5453 p
+= sprintf(p
, "(BATTERY)");
5457 "(Timeout %dms, Period %dms)",
5458 timeout_duration
[level
- 1] / 1000,
5459 period_duration
[level
- 1] / 1000);
5462 if (!(priv->power_mode & IWL_POWER_ENABLED))
5463 p += sprintf(p, " OFF\n");
5465 p += sprintf(p, " \n");
5467 p
+= sprintf(p
, " \n");
5468 return (p
- buf
+ 1);
5471 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
5474 static ssize_t
show_channels(struct device
*d
,
5475 struct device_attribute
*attr
, char *buf
)
5477 /* all this shit doesn't belong into sysfs anyway */
5481 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
5483 static ssize_t
show_statistics(struct device
*d
,
5484 struct device_attribute
*attr
, char *buf
)
5486 struct iwl_priv
*priv
= dev_get_drvdata(d
);
5487 u32 size
= sizeof(struct iwl4965_notif_statistics
);
5488 u32 len
= 0, ofs
= 0;
5489 u8
*data
= (u8
*) & priv
->statistics
;
5492 if (!iwl_is_alive(priv
))
5495 mutex_lock(&priv
->mutex
);
5496 rc
= iwl_send_statistics_request(priv
, 0);
5497 mutex_unlock(&priv
->mutex
);
5501 "Error sending statistics request: 0x%08X\n", rc
);
5505 while (size
&& (PAGE_SIZE
- len
)) {
5506 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
5507 PAGE_SIZE
- len
, 1);
5509 if (PAGE_SIZE
- len
)
5513 size
-= min(size
, 16U);
5519 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
5521 static ssize_t
show_status(struct device
*d
,
5522 struct device_attribute
*attr
, char *buf
)
5524 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5525 if (!iwl_is_alive(priv
))
5527 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
5530 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
5532 static ssize_t
dump_error_log(struct device
*d
,
5533 struct device_attribute
*attr
,
5534 const char *buf
, size_t count
)
5536 char *p
= (char *)buf
;
5539 iwl4965_dump_nic_error_log((struct iwl_priv
*)d
->driver_data
);
5541 return strnlen(buf
, count
);
5544 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
5546 /*****************************************************************************
5548 * driver setup and teardown
5550 *****************************************************************************/
5552 static void iwl4965_setup_deferred_work(struct iwl_priv
*priv
)
5554 priv
->workqueue
= create_workqueue(DRV_NAME
);
5556 init_waitqueue_head(&priv
->wait_command_queue
);
5558 INIT_WORK(&priv
->up
, iwl4965_bg_up
);
5559 INIT_WORK(&priv
->restart
, iwl4965_bg_restart
);
5560 INIT_WORK(&priv
->rx_replenish
, iwl4965_bg_rx_replenish
);
5561 INIT_WORK(&priv
->scan_completed
, iwl4965_bg_scan_completed
);
5562 INIT_WORK(&priv
->request_scan
, iwl4965_bg_request_scan
);
5563 INIT_WORK(&priv
->abort_scan
, iwl4965_bg_abort_scan
);
5564 INIT_WORK(&priv
->rf_kill
, iwl4965_bg_rf_kill
);
5565 INIT_WORK(&priv
->beacon_update
, iwl4965_bg_beacon_update
);
5566 INIT_WORK(&priv
->set_monitor
, iwl4965_bg_set_monitor
);
5567 INIT_DELAYED_WORK(&priv
->post_associate
, iwl4965_bg_post_associate
);
5568 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl4965_bg_init_alive_start
);
5569 INIT_DELAYED_WORK(&priv
->alive_start
, iwl4965_bg_alive_start
);
5570 INIT_DELAYED_WORK(&priv
->scan_check
, iwl4965_bg_scan_check
);
5572 iwl4965_hw_setup_deferred_work(priv
);
5574 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
5575 iwl4965_irq_tasklet
, (unsigned long)priv
);
5578 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
)
5580 iwl4965_hw_cancel_deferred_work(priv
);
5582 cancel_delayed_work_sync(&priv
->init_alive_start
);
5583 cancel_delayed_work(&priv
->scan_check
);
5584 cancel_delayed_work(&priv
->alive_start
);
5585 cancel_delayed_work(&priv
->post_associate
);
5586 cancel_work_sync(&priv
->beacon_update
);
5589 static struct attribute
*iwl4965_sysfs_entries
[] = {
5590 &dev_attr_channels
.attr
,
5591 &dev_attr_dump_errors
.attr
,
5592 &dev_attr_flags
.attr
,
5593 &dev_attr_filter_flags
.attr
,
5594 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
5595 &dev_attr_measurement
.attr
,
5597 &dev_attr_power_level
.attr
,
5598 &dev_attr_retry_rate
.attr
,
5599 &dev_attr_rs_window
.attr
,
5600 &dev_attr_statistics
.attr
,
5601 &dev_attr_status
.attr
,
5602 &dev_attr_temperature
.attr
,
5603 &dev_attr_tx_power
.attr
,
5604 #ifdef CONFIG_IWLWIFI_DEBUG
5605 &dev_attr_debug_level
.attr
,
5607 &dev_attr_version
.attr
,
5612 static struct attribute_group iwl4965_attribute_group
= {
5613 .name
= NULL
, /* put in device directory */
5614 .attrs
= iwl4965_sysfs_entries
,
5617 static struct ieee80211_ops iwl4965_hw_ops
= {
5618 .tx
= iwl4965_mac_tx
,
5619 .start
= iwl4965_mac_start
,
5620 .stop
= iwl4965_mac_stop
,
5621 .add_interface
= iwl4965_mac_add_interface
,
5622 .remove_interface
= iwl4965_mac_remove_interface
,
5623 .config
= iwl4965_mac_config
,
5624 .config_interface
= iwl4965_mac_config_interface
,
5625 .configure_filter
= iwl4965_configure_filter
,
5626 .set_key
= iwl4965_mac_set_key
,
5627 .update_tkip_key
= iwl4965_mac_update_tkip_key
,
5628 .get_stats
= iwl4965_mac_get_stats
,
5629 .get_tx_stats
= iwl4965_mac_get_tx_stats
,
5630 .conf_tx
= iwl4965_mac_conf_tx
,
5631 .get_tsf
= iwl4965_mac_get_tsf
,
5632 .reset_tsf
= iwl4965_mac_reset_tsf
,
5633 .beacon_update
= iwl4965_mac_beacon_update
,
5634 .bss_info_changed
= iwl4965_bss_info_changed
,
5635 #ifdef CONFIG_IWL4965_HT
5636 .ampdu_action
= iwl4965_mac_ampdu_action
,
5637 #endif /* CONFIG_IWL4965_HT */
5638 .hw_scan
= iwl4965_mac_hw_scan
5641 static int iwl4965_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
5644 struct iwl_priv
*priv
;
5645 struct ieee80211_hw
*hw
;
5646 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
5647 unsigned long flags
;
5648 DECLARE_MAC_BUF(mac
);
5650 /************************
5651 * 1. Allocating HW data
5652 ************************/
5654 /* Disabling hardware scan means that mac80211 will perform scans
5655 * "the hard way", rather than using device's scan. */
5656 if (cfg
->mod_params
->disable_hw_scan
) {
5657 if (cfg
->mod_params
->debug
& IWL_DL_INFO
)
5658 dev_printk(KERN_DEBUG
, &(pdev
->dev
),
5659 "Disabling hw_scan\n");
5660 iwl4965_hw_ops
.hw_scan
= NULL
;
5663 hw
= iwl_alloc_all(cfg
, &iwl4965_hw_ops
);
5669 /* At this point both hw and priv are allocated. */
5671 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
5673 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
5675 priv
->pci_dev
= pdev
;
5677 #ifdef CONFIG_IWLWIFI_DEBUG
5678 priv
->debug_level
= priv
->cfg
->mod_params
->debug
;
5679 atomic_set(&priv
->restrict_refcnt
, 0);
5682 /**************************
5683 * 2. Initializing PCI bus
5684 **************************/
5685 if (pci_enable_device(pdev
)) {
5687 goto out_ieee80211_free_hw
;
5690 pci_set_master(pdev
);
5692 err
= pci_set_dma_mask(pdev
, DMA_64BIT_MASK
);
5694 err
= pci_set_consistent_dma_mask(pdev
, DMA_64BIT_MASK
);
5696 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
5698 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
5699 /* both attempts failed: */
5701 printk(KERN_WARNING
"%s: No suitable DMA available.\n",
5703 goto out_pci_disable_device
;
5707 err
= pci_request_regions(pdev
, DRV_NAME
);
5709 goto out_pci_disable_device
;
5711 pci_set_drvdata(pdev
, priv
);
5713 /* We disable the RETRY_TIMEOUT register (0x41) to keep
5714 * PCI Tx retries from interfering with C3 CPU state */
5715 pci_write_config_byte(pdev
, 0x41, 0x00);
5717 /***********************
5718 * 3. Read REV register
5719 ***********************/
5720 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
5721 if (!priv
->hw_base
) {
5723 goto out_pci_release_regions
;
5726 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
5727 (unsigned long long) pci_resource_len(pdev
, 0));
5728 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
5730 iwl_hw_detect(priv
);
5731 printk(KERN_INFO DRV_NAME
5732 ": Detected Intel Wireless WiFi Link %s REV=0x%X\n",
5733 priv
->cfg
->name
, priv
->hw_rev
);
5736 err
= priv
->cfg
->ops
->lib
->apm_ops
.init(priv
);
5738 IWL_DEBUG_INFO("Failed to init APMG\n");
5744 /* Read the EEPROM */
5745 err
= iwl_eeprom_init(priv
);
5747 IWL_ERROR("Unable to init EEPROM\n");
5750 err
= iwl_eeprom_check_version(priv
);
5754 /* extract MAC Address */
5755 iwl_eeprom_get_mac(priv
, priv
->mac_addr
);
5756 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac
, priv
->mac_addr
));
5757 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
5759 /************************
5760 * 5. Setup HW constants
5761 ************************/
5762 /* Device-specific setup */
5763 if (priv
->cfg
->ops
->lib
->set_hw_params(priv
)) {
5764 IWL_ERROR("failed to set hw parameters\n");
5765 goto out_free_eeprom
;
5768 /*******************
5770 *******************/
5772 err
= iwl_init_drv(priv
);
5774 goto out_free_eeprom
;
5775 /* At this point both hw and priv are initialized. */
5777 /**********************************
5778 * 7. Initialize module parameters
5779 **********************************/
5781 /* Disable radio (SW RF KILL) via parameter when loading driver */
5782 if (priv
->cfg
->mod_params
->disable
) {
5783 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
5784 IWL_DEBUG_INFO("Radio disabled.\n");
5787 /********************
5789 ********************/
5790 spin_lock_irqsave(&priv
->lock
, flags
);
5791 iwl4965_disable_interrupts(priv
);
5792 spin_unlock_irqrestore(&priv
->lock
, flags
);
5794 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
5796 IWL_ERROR("failed to create sysfs device attributes\n");
5797 goto out_uninit_drv
;
5801 iwl4965_setup_deferred_work(priv
);
5802 iwl4965_setup_rx_handlers(priv
);
5804 /********************
5806 ********************/
5807 pci_save_state(pdev
);
5808 pci_disable_device(pdev
);
5810 /**********************************
5811 * 10. Setup and register mac80211
5812 **********************************/
5814 err
= iwl_setup_mac(priv
);
5816 goto out_remove_sysfs
;
5818 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
5820 IWL_ERROR("failed to create debugfs files\n");
5822 /* notify iwlcore to init */
5823 iwlcore_low_level_notify(priv
, IWLCORE_INIT_EVT
);
5827 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
5829 iwl_uninit_drv(priv
);
5831 iwl_eeprom_free(priv
);
5833 pci_iounmap(pdev
, priv
->hw_base
);
5834 out_pci_release_regions
:
5835 pci_release_regions(pdev
);
5836 pci_set_drvdata(pdev
, NULL
);
5837 out_pci_disable_device
:
5838 pci_disable_device(pdev
);
5839 out_ieee80211_free_hw
:
5840 ieee80211_free_hw(priv
->hw
);
5845 static void __devexit
iwl4965_pci_remove(struct pci_dev
*pdev
)
5847 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
5848 struct list_head
*p
, *q
;
5850 unsigned long flags
;
5855 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
5857 if (priv
->mac80211_registered
) {
5858 ieee80211_unregister_hw(priv
->hw
);
5859 priv
->mac80211_registered
= 0;
5862 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5866 /* make sure we flush any pending irq or
5867 * tasklet for the driver
5869 spin_lock_irqsave(&priv
->lock
, flags
);
5870 iwl4965_disable_interrupts(priv
);
5871 spin_unlock_irqrestore(&priv
->lock
, flags
);
5873 iwl_synchronize_irq(priv
);
5875 /* Free MAC hash list for ADHOC */
5876 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++) {
5877 list_for_each_safe(p
, q
, &priv
->ibss_mac_hash
[i
]) {
5879 kfree(list_entry(p
, struct iwl4965_ibss_seq
, list
));
5883 iwlcore_low_level_notify(priv
, IWLCORE_REMOVE_EVT
);
5884 iwl_dbgfs_unregister(priv
);
5885 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
5887 iwl4965_dealloc_ucode_pci(priv
);
5890 iwl_rx_queue_free(priv
, &priv
->rxq
);
5891 iwl_hw_txq_ctx_free(priv
);
5893 iwlcore_clear_stations_table(priv
);
5894 iwl_eeprom_free(priv
);
5897 /*netif_stop_queue(dev); */
5898 flush_workqueue(priv
->workqueue
);
5900 /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
5901 * priv->workqueue... so we can't take down the workqueue
5903 destroy_workqueue(priv
->workqueue
);
5904 priv
->workqueue
= NULL
;
5906 pci_iounmap(pdev
, priv
->hw_base
);
5907 pci_release_regions(pdev
);
5908 pci_disable_device(pdev
);
5909 pci_set_drvdata(pdev
, NULL
);
5911 iwl_uninit_drv(priv
);
5913 if (priv
->ibss_beacon
)
5914 dev_kfree_skb(priv
->ibss_beacon
);
5916 ieee80211_free_hw(priv
->hw
);
5921 static int iwl4965_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
5923 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
5925 if (priv
->is_open
) {
5926 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
5927 iwl4965_mac_stop(priv
->hw
);
5931 pci_set_power_state(pdev
, PCI_D3hot
);
5936 static int iwl4965_pci_resume(struct pci_dev
*pdev
)
5938 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
5940 pci_set_power_state(pdev
, PCI_D0
);
5943 iwl4965_mac_start(priv
->hw
);
5945 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
5949 #endif /* CONFIG_PM */
5951 /*****************************************************************************
5953 * driver and module entry point
5955 *****************************************************************************/
5957 /* Hardware specific file defines the PCI IDs table for that hardware module */
5958 static struct pci_device_id iwl_hw_card_ids
[] = {
5959 {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID
, iwl4965_agn_cfg
)},
5960 {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID
, iwl4965_agn_cfg
)},
5961 #ifdef CONFIG_IWL5000
5962 {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID
, iwl5300_agn_cfg
)},
5963 {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID
, iwl5100_agn_cfg
)},
5964 {IWL_PCI_DEVICE(0x423A, PCI_ANY_ID
, iwl5350_agn_cfg
)},
5965 #endif /* CONFIG_IWL5000 */
5968 MODULE_DEVICE_TABLE(pci
, iwl_hw_card_ids
);
5970 static struct pci_driver iwl_driver
= {
5972 .id_table
= iwl_hw_card_ids
,
5973 .probe
= iwl4965_pci_probe
,
5974 .remove
= __devexit_p(iwl4965_pci_remove
),
5976 .suspend
= iwl4965_pci_suspend
,
5977 .resume
= iwl4965_pci_resume
,
5981 static int __init
iwl4965_init(void)
5985 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
5986 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
5988 ret
= iwl4965_rate_control_register();
5990 IWL_ERROR("Unable to register rate control algorithm: %d\n", ret
);
5994 ret
= pci_register_driver(&iwl_driver
);
5996 IWL_ERROR("Unable to initialize PCI module\n");
5997 goto error_register
;
6003 iwl4965_rate_control_unregister();
6007 static void __exit
iwl4965_exit(void)
6009 pci_unregister_driver(&iwl_driver
);
6010 iwl4965_rate_control_unregister();
6013 module_exit(iwl4965_exit
);
6014 module_init(iwl4965_init
);