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
)
1609 ieee80211_tx_status_irqsafe(priv
->hw
, tx_sta
->skb
[0]);
1610 tx_sta
->skb
[0] = NULL
;
1614 * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
1616 * When FW advances 'R' index, all entries between old and new 'R' index
1617 * need to be reclaimed. As result, some free space forms. If there is
1618 * enough free space (> low mark), wake the stack that feeds us.
1620 int iwl4965_tx_queue_reclaim(struct iwl_priv
*priv
, int txq_id
, int index
)
1622 struct iwl_tx_queue
*txq
= &priv
->txq
[txq_id
];
1623 struct iwl_queue
*q
= &txq
->q
;
1626 if ((index
>= q
->n_bd
) || (iwl_queue_used(q
, index
) == 0)) {
1627 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
1628 "is out of range [0-%d] %d %d.\n", txq_id
,
1629 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
1633 for (index
= iwl_queue_inc_wrap(index
, q
->n_bd
);
1634 q
->read_ptr
!= index
;
1635 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
1636 if (txq_id
!= IWL_CMD_QUEUE_NUM
) {
1637 iwl4965_txstatus_to_ieee(priv
,
1638 &(txq
->txb
[txq
->q
.read_ptr
]));
1639 iwl_hw_txq_free_tfd(priv
, txq
);
1640 } else if (nfreed
> 1) {
1641 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index
,
1642 q
->write_ptr
, q
->read_ptr
);
1643 queue_work(priv
->workqueue
, &priv
->restart
);
1651 static int iwl4965_is_tx_success(u32 status
)
1653 status
&= TX_STATUS_MSK
;
1654 return (status
== TX_STATUS_SUCCESS
)
1655 || (status
== TX_STATUS_DIRECT_DONE
);
1658 /******************************************************************************
1660 * Generic RX handler implementations
1662 ******************************************************************************/
1663 #ifdef CONFIG_IWL4965_HT
1665 static inline int iwl4965_get_ra_sta_id(struct iwl_priv
*priv
,
1666 struct ieee80211_hdr
*hdr
)
1668 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)
1671 u8
*da
= ieee80211_get_DA(hdr
);
1672 return iwl_find_station(priv
, da
);
1676 static struct ieee80211_hdr
*iwl4965_tx_queue_get_hdr(
1677 struct iwl_priv
*priv
, int txq_id
, int idx
)
1679 if (priv
->txq
[txq_id
].txb
[idx
].skb
[0])
1680 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
1681 txb
[idx
].skb
[0]->data
;
1685 static inline u32
iwl4965_get_scd_ssn(struct iwl4965_tx_resp
*tx_resp
)
1687 __le32
*scd_ssn
= (__le32
*)((u32
*)&tx_resp
->status
+
1688 tx_resp
->frame_count
);
1689 return le32_to_cpu(*scd_ssn
) & MAX_SN
;
1694 * iwl4965_tx_status_reply_tx - Handle Tx rspnse for frames in aggregation queue
1696 static int iwl4965_tx_status_reply_tx(struct iwl_priv
*priv
,
1697 struct iwl_ht_agg
*agg
,
1698 struct iwl4965_tx_resp_agg
*tx_resp
,
1702 struct agg_tx_status
*frame_status
= &tx_resp
->status
;
1703 struct ieee80211_tx_info
*info
= NULL
;
1704 struct ieee80211_hdr
*hdr
= NULL
;
1709 if (agg
->wait_for_ba
)
1710 IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
1712 agg
->frame_count
= tx_resp
->frame_count
;
1713 agg
->start_idx
= start_idx
;
1714 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
1717 /* # frames attempted by Tx command */
1718 if (agg
->frame_count
== 1) {
1719 /* Only one frame was attempted; no block-ack will arrive */
1720 status
= le16_to_cpu(frame_status
[0].status
);
1721 seq
= le16_to_cpu(frame_status
[0].sequence
);
1722 idx
= SEQ_TO_INDEX(seq
);
1723 txq_id
= SEQ_TO_QUEUE(seq
);
1725 /* FIXME: code repetition */
1726 IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
1727 agg
->frame_count
, agg
->start_idx
, idx
);
1729 info
= IEEE80211_SKB_CB(priv
->txq
[txq_id
].txb
[idx
].skb
[0]);
1730 info
->status
.retry_count
= tx_resp
->failure_frame
;
1731 info
->flags
&= ~IEEE80211_TX_CTL_AMPDU
;
1732 info
->flags
|= iwl4965_is_tx_success(status
)?
1733 IEEE80211_TX_STAT_ACK
: 0;
1734 iwl4965_hwrate_to_tx_control(priv
,
1735 le32_to_cpu(tx_resp
->rate_n_flags
),
1737 /* FIXME: code repetition end */
1739 IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
1740 status
& 0xff, tx_resp
->failure_frame
);
1741 IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n",
1742 iwl4965_hw_get_rate_n_flags(tx_resp
->rate_n_flags
));
1744 agg
->wait_for_ba
= 0;
1746 /* Two or more frames were attempted; expect block-ack */
1748 int start
= agg
->start_idx
;
1750 /* Construct bit-map of pending frames within Tx window */
1751 for (i
= 0; i
< agg
->frame_count
; i
++) {
1753 status
= le16_to_cpu(frame_status
[i
].status
);
1754 seq
= le16_to_cpu(frame_status
[i
].sequence
);
1755 idx
= SEQ_TO_INDEX(seq
);
1756 txq_id
= SEQ_TO_QUEUE(seq
);
1758 if (status
& (AGG_TX_STATE_FEW_BYTES_MSK
|
1759 AGG_TX_STATE_ABORT_MSK
))
1762 IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
1763 agg
->frame_count
, txq_id
, idx
);
1765 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, idx
);
1767 sc
= le16_to_cpu(hdr
->seq_ctrl
);
1768 if (idx
!= (SEQ_TO_SN(sc
) & 0xff)) {
1769 IWL_ERROR("BUG_ON idx doesn't match seq control"
1770 " idx=%d, seq_idx=%d, seq=%d\n",
1776 IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n",
1777 i
, idx
, SEQ_TO_SN(sc
));
1781 sh
= (start
- idx
) + 0xff;
1782 bitmap
= bitmap
<< sh
;
1785 } else if (sh
< -64)
1786 sh
= 0xff - (start
- idx
);
1790 bitmap
= bitmap
<< sh
;
1793 bitmap
|= (1 << sh
);
1794 IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n",
1795 start
, (u32
)(bitmap
& 0xFFFFFFFF));
1798 agg
->bitmap
= bitmap
;
1799 agg
->start_idx
= start
;
1800 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
1801 IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n",
1802 agg
->frame_count
, agg
->start_idx
,
1803 (unsigned long long)agg
->bitmap
);
1806 agg
->wait_for_ba
= 1;
1813 * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response
1815 static void iwl4965_rx_reply_tx(struct iwl_priv
*priv
,
1816 struct iwl_rx_mem_buffer
*rxb
)
1818 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1819 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
1820 int txq_id
= SEQ_TO_QUEUE(sequence
);
1821 int index
= SEQ_TO_INDEX(sequence
);
1822 struct iwl_tx_queue
*txq
= &priv
->txq
[txq_id
];
1823 struct ieee80211_tx_info
*info
;
1824 struct iwl4965_tx_resp
*tx_resp
= (void *)&pkt
->u
.raw
[0];
1825 u32 status
= le32_to_cpu(tx_resp
->status
);
1826 #ifdef CONFIG_IWL4965_HT
1827 int tid
= MAX_TID_COUNT
, sta_id
= IWL_INVALID_STATION
;
1829 struct ieee80211_hdr
*hdr
;
1833 if ((index
>= txq
->q
.n_bd
) || (iwl_queue_used(&txq
->q
, index
) == 0)) {
1834 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
1835 "is out of range [0-%d] %d %d\n", txq_id
,
1836 index
, txq
->q
.n_bd
, txq
->q
.write_ptr
,
1841 info
= IEEE80211_SKB_CB(txq
->txb
[txq
->q
.read_ptr
].skb
[0]);
1842 memset(&info
->status
, 0, sizeof(info
->status
));
1844 #ifdef CONFIG_IWL4965_HT
1845 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, index
);
1846 fc
= le16_to_cpu(hdr
->frame_control
);
1847 if (ieee80211_is_qos_data(fc
)) {
1848 qc
= ieee80211_get_qos_ctrl(hdr
, ieee80211_get_hdrlen(fc
));
1852 sta_id
= iwl4965_get_ra_sta_id(priv
, hdr
);
1853 if (txq
->sched_retry
&& unlikely(sta_id
== IWL_INVALID_STATION
)) {
1854 IWL_ERROR("Station not known\n");
1858 if (txq
->sched_retry
) {
1859 const u32 scd_ssn
= iwl4965_get_scd_ssn(tx_resp
);
1860 struct iwl_ht_agg
*agg
= NULL
;
1865 agg
= &priv
->stations
[sta_id
].tid
[tid
].agg
;
1867 iwl4965_tx_status_reply_tx(priv
, agg
,
1868 (struct iwl4965_tx_resp_agg
*)tx_resp
, index
);
1870 if ((tx_resp
->frame_count
== 1) &&
1871 !iwl4965_is_tx_success(status
)) {
1872 /* TODO: send BAR */
1875 if (txq
->q
.read_ptr
!= (scd_ssn
& 0xff)) {
1877 index
= iwl_queue_dec_wrap(scd_ssn
& 0xff, txq
->q
.n_bd
);
1878 IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
1879 "%d index %d\n", scd_ssn
, index
);
1880 freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
1881 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
1883 if (iwl_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
1884 txq_id
>= 0 && priv
->mac80211_registered
&&
1885 agg
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
) {
1886 /* calculate mac80211 ampdu sw queue to wake */
1887 ampdu_q
= txq_id
- IWL_BACK_QUEUE_FIRST_ID
+
1889 if (agg
->state
== IWL_AGG_OFF
)
1890 ieee80211_wake_queue(priv
->hw
, txq_id
);
1892 ieee80211_wake_queue(priv
->hw
, ampdu_q
);
1894 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
1897 #endif /* CONFIG_IWL4965_HT */
1899 info
->status
.retry_count
= tx_resp
->failure_frame
;
1901 iwl4965_is_tx_success(status
) ? IEEE80211_TX_STAT_ACK
: 0;
1902 iwl4965_hwrate_to_tx_control(priv
, le32_to_cpu(tx_resp
->rate_n_flags
),
1905 IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags 0x%x "
1906 "retries %d\n", txq_id
, iwl4965_get_tx_fail_reason(status
),
1907 status
, le32_to_cpu(tx_resp
->rate_n_flags
),
1908 tx_resp
->failure_frame
);
1910 IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index
);
1911 #ifdef CONFIG_IWL4965_HT
1913 int freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
1914 if (tid
!= MAX_TID_COUNT
)
1915 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
1916 if (iwl_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
1917 (txq_id
>= 0) && priv
->mac80211_registered
)
1918 ieee80211_wake_queue(priv
->hw
, txq_id
);
1919 if (tid
!= MAX_TID_COUNT
)
1920 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
1923 #endif /* CONFIG_IWL4965_HT */
1925 if (iwl_check_bits(status
, TX_ABORT_REQUIRED_MSK
))
1926 IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
1930 static void iwl4965_rx_reply_alive(struct iwl_priv
*priv
,
1931 struct iwl_rx_mem_buffer
*rxb
)
1933 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1934 struct iwl4965_alive_resp
*palive
;
1935 struct delayed_work
*pwork
;
1937 palive
= &pkt
->u
.alive_frame
;
1939 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
1941 palive
->is_valid
, palive
->ver_type
,
1942 palive
->ver_subtype
);
1944 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
1945 IWL_DEBUG_INFO("Initialization Alive received.\n");
1946 memcpy(&priv
->card_alive_init
,
1947 &pkt
->u
.alive_frame
,
1948 sizeof(struct iwl4965_init_alive_resp
));
1949 pwork
= &priv
->init_alive_start
;
1951 IWL_DEBUG_INFO("Runtime Alive received.\n");
1952 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
1953 sizeof(struct iwl4965_alive_resp
));
1954 pwork
= &priv
->alive_start
;
1957 /* We delay the ALIVE response by 5ms to
1958 * give the HW RF Kill time to activate... */
1959 if (palive
->is_valid
== UCODE_VALID_OK
)
1960 queue_delayed_work(priv
->workqueue
, pwork
,
1961 msecs_to_jiffies(5));
1963 IWL_WARNING("uCode did not respond OK.\n");
1966 static void iwl4965_rx_reply_add_sta(struct iwl_priv
*priv
,
1967 struct iwl_rx_mem_buffer
*rxb
)
1969 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1971 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
1975 static void iwl4965_rx_reply_error(struct iwl_priv
*priv
,
1976 struct iwl_rx_mem_buffer
*rxb
)
1978 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1980 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
1981 "seq 0x%04X ser 0x%08X\n",
1982 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
1983 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
1984 pkt
->u
.err_resp
.cmd_id
,
1985 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
1986 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
1989 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
1991 static void iwl4965_rx_csa(struct iwl_priv
*priv
, struct iwl_rx_mem_buffer
*rxb
)
1993 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1994 struct iwl_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
1995 struct iwl4965_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
1996 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
1997 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
1998 rxon
->channel
= csa
->channel
;
1999 priv
->staging_rxon
.channel
= csa
->channel
;
2002 static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv
*priv
,
2003 struct iwl_rx_mem_buffer
*rxb
)
2005 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
2006 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2007 struct iwl4965_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
2009 if (!report
->state
) {
2010 IWL_DEBUG(IWL_DL_11H
,
2011 "Spectrum Measure Notification: Start\n");
2015 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
2016 priv
->measurement_status
|= MEASUREMENT_READY
;
2020 static void iwl4965_rx_pm_sleep_notif(struct iwl_priv
*priv
,
2021 struct iwl_rx_mem_buffer
*rxb
)
2023 #ifdef CONFIG_IWLWIFI_DEBUG
2024 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2025 struct iwl4965_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
2026 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
2027 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
2031 static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
2032 struct iwl_rx_mem_buffer
*rxb
)
2034 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2035 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
2036 "notification for %s:\n",
2037 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
2038 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
2041 static void iwl4965_bg_beacon_update(struct work_struct
*work
)
2043 struct iwl_priv
*priv
=
2044 container_of(work
, struct iwl_priv
, beacon_update
);
2045 struct sk_buff
*beacon
;
2047 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
2048 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
);
2051 IWL_ERROR("update beacon failed\n");
2055 mutex_lock(&priv
->mutex
);
2056 /* new beacon skb is allocated every time; dispose previous.*/
2057 if (priv
->ibss_beacon
)
2058 dev_kfree_skb(priv
->ibss_beacon
);
2060 priv
->ibss_beacon
= beacon
;
2061 mutex_unlock(&priv
->mutex
);
2063 iwl4965_send_beacon_cmd(priv
);
2066 static void iwl4965_rx_beacon_notif(struct iwl_priv
*priv
,
2067 struct iwl_rx_mem_buffer
*rxb
)
2069 #ifdef CONFIG_IWLWIFI_DEBUG
2070 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2071 struct iwl4965_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
2072 u8 rate
= iwl4965_hw_get_rate(beacon
->beacon_notify_hdr
.rate_n_flags
);
2074 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
2075 "tsf %d %d rate %d\n",
2076 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
2077 beacon
->beacon_notify_hdr
.failure_frame
,
2078 le32_to_cpu(beacon
->ibss_mgr_status
),
2079 le32_to_cpu(beacon
->high_tsf
),
2080 le32_to_cpu(beacon
->low_tsf
), rate
);
2083 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
2084 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
2085 queue_work(priv
->workqueue
, &priv
->beacon_update
);
2088 /* Service response to REPLY_SCAN_CMD (0x80) */
2089 static void iwl4965_rx_reply_scan(struct iwl_priv
*priv
,
2090 struct iwl_rx_mem_buffer
*rxb
)
2092 #ifdef CONFIG_IWLWIFI_DEBUG
2093 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2094 struct iwl4965_scanreq_notification
*notif
=
2095 (struct iwl4965_scanreq_notification
*)pkt
->u
.raw
;
2097 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
2101 /* Service SCAN_START_NOTIFICATION (0x82) */
2102 static void iwl4965_rx_scan_start_notif(struct iwl_priv
*priv
,
2103 struct iwl_rx_mem_buffer
*rxb
)
2105 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2106 struct iwl4965_scanstart_notification
*notif
=
2107 (struct iwl4965_scanstart_notification
*)pkt
->u
.raw
;
2108 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
2109 IWL_DEBUG_SCAN("Scan start: "
2111 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
2113 notif
->band
? "bg" : "a",
2115 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
2118 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
2119 static void iwl4965_rx_scan_results_notif(struct iwl_priv
*priv
,
2120 struct iwl_rx_mem_buffer
*rxb
)
2122 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2123 struct iwl4965_scanresults_notification
*notif
=
2124 (struct iwl4965_scanresults_notification
*)pkt
->u
.raw
;
2126 IWL_DEBUG_SCAN("Scan ch.res: "
2128 "(TSF: 0x%08X:%08X) - %d "
2129 "elapsed=%lu usec (%dms since last)\n",
2131 notif
->band
? "bg" : "a",
2132 le32_to_cpu(notif
->tsf_high
),
2133 le32_to_cpu(notif
->tsf_low
),
2134 le32_to_cpu(notif
->statistics
[0]),
2135 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
2136 jiffies_to_msecs(elapsed_jiffies
2137 (priv
->last_scan_jiffies
, jiffies
)));
2139 priv
->last_scan_jiffies
= jiffies
;
2140 priv
->next_scan_jiffies
= 0;
2143 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
2144 static void iwl4965_rx_scan_complete_notif(struct iwl_priv
*priv
,
2145 struct iwl_rx_mem_buffer
*rxb
)
2147 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2148 struct iwl4965_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
2150 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
2151 scan_notif
->scanned_channels
,
2152 scan_notif
->tsf_low
,
2153 scan_notif
->tsf_high
, scan_notif
->status
);
2155 /* The HW is no longer scanning */
2156 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
2158 /* The scan completion notification came in, so kill that timer... */
2159 cancel_delayed_work(&priv
->scan_check
);
2161 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
2162 (priv
->scan_bands
== 2) ? "2.4" : "5.2",
2163 jiffies_to_msecs(elapsed_jiffies
2164 (priv
->scan_pass_start
, jiffies
)));
2166 /* Remove this scanned band from the list
2167 * of pending bands to scan */
2170 /* If a request to abort was given, or the scan did not succeed
2171 * then we reset the scan state machine and terminate,
2172 * re-queuing another scan if one has been requested */
2173 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2174 IWL_DEBUG_INFO("Aborted scan completed.\n");
2175 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
2177 /* If there are more bands on this scan pass reschedule */
2178 if (priv
->scan_bands
> 0)
2182 priv
->last_scan_jiffies
= jiffies
;
2183 priv
->next_scan_jiffies
= 0;
2184 IWL_DEBUG_INFO("Setting scan to off\n");
2186 clear_bit(STATUS_SCANNING
, &priv
->status
);
2188 IWL_DEBUG_INFO("Scan took %dms\n",
2189 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
2191 queue_work(priv
->workqueue
, &priv
->scan_completed
);
2196 priv
->scan_pass_start
= jiffies
;
2197 queue_work(priv
->workqueue
, &priv
->request_scan
);
2200 /* Handle notification from uCode that card's power state is changing
2201 * due to software, hardware, or critical temperature RFKILL */
2202 static void iwl4965_rx_card_state_notif(struct iwl_priv
*priv
,
2203 struct iwl_rx_mem_buffer
*rxb
)
2205 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2206 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
2207 unsigned long status
= priv
->status
;
2209 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
2210 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
2211 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
2213 if (flags
& (SW_CARD_DISABLED
| HW_CARD_DISABLED
|
2214 RF_CARD_DISABLED
)) {
2216 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2217 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
2219 if (!iwl_grab_nic_access(priv
)) {
2221 priv
, HBUS_TARG_MBX_C
,
2222 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
2224 iwl_release_nic_access(priv
);
2227 if (!(flags
& RXON_CARD_DISABLED
)) {
2228 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
2229 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
2230 if (!iwl_grab_nic_access(priv
)) {
2232 priv
, HBUS_TARG_MBX_C
,
2233 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
2235 iwl_release_nic_access(priv
);
2239 if (flags
& RF_CARD_DISABLED
) {
2240 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2241 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
2242 iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
2243 if (!iwl_grab_nic_access(priv
))
2244 iwl_release_nic_access(priv
);
2248 if (flags
& HW_CARD_DISABLED
)
2249 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2251 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2254 if (flags
& SW_CARD_DISABLED
)
2255 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2257 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2259 if (!(flags
& RXON_CARD_DISABLED
))
2260 iwl4965_scan_cancel(priv
);
2262 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
2263 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
2264 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
2265 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
2266 queue_work(priv
->workqueue
, &priv
->rf_kill
);
2268 wake_up_interruptible(&priv
->wait_command_queue
);
2272 * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
2274 * Setup the RX handlers for each of the reply types sent from the uCode
2277 * This function chains into the hardware specific files for them to setup
2278 * any hardware specific handlers as well.
2280 static void iwl4965_setup_rx_handlers(struct iwl_priv
*priv
)
2282 priv
->rx_handlers
[REPLY_ALIVE
] = iwl4965_rx_reply_alive
;
2283 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl4965_rx_reply_add_sta
;
2284 priv
->rx_handlers
[REPLY_ERROR
] = iwl4965_rx_reply_error
;
2285 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl4965_rx_csa
;
2286 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
2287 iwl4965_rx_spectrum_measure_notif
;
2288 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl4965_rx_pm_sleep_notif
;
2289 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
2290 iwl4965_rx_pm_debug_statistics_notif
;
2291 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl4965_rx_beacon_notif
;
2294 * The same handler is used for both the REPLY to a discrete
2295 * statistics request from the host as well as for the periodic
2296 * statistics notifications (after received beacons) from the uCode.
2298 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl4965_hw_rx_statistics
;
2299 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl4965_hw_rx_statistics
;
2301 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl4965_rx_reply_scan
;
2302 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl4965_rx_scan_start_notif
;
2303 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
2304 iwl4965_rx_scan_results_notif
;
2305 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
2306 iwl4965_rx_scan_complete_notif
;
2307 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl4965_rx_card_state_notif
;
2308 priv
->rx_handlers
[REPLY_TX
] = iwl4965_rx_reply_tx
;
2310 /* Set up hardware specific Rx handlers */
2311 priv
->cfg
->ops
->lib
->rx_handler_setup(priv
);
2315 * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
2316 * @rxb: Rx buffer to reclaim
2318 * If an Rx buffer has an async callback associated with it the callback
2319 * will be executed. The attached skb (if present) will only be freed
2320 * if the callback returns 1
2322 static void iwl4965_tx_cmd_complete(struct iwl_priv
*priv
,
2323 struct iwl_rx_mem_buffer
*rxb
)
2325 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2326 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
2327 int txq_id
= SEQ_TO_QUEUE(sequence
);
2328 int index
= SEQ_TO_INDEX(sequence
);
2329 int huge
= sequence
& SEQ_HUGE_FRAME
;
2331 struct iwl_cmd
*cmd
;
2333 /* If a Tx command is being handled and it isn't in the actual
2334 * command queue then there a command routing bug has been introduced
2335 * in the queue management code. */
2336 if (txq_id
!= IWL_CMD_QUEUE_NUM
)
2337 IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
2338 txq_id
, pkt
->hdr
.cmd
);
2339 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
2341 cmd_index
= get_cmd_index(&priv
->txq
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
2342 cmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
2344 /* Input error checking is done when commands are added to queue. */
2345 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
2346 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
2348 } else if (cmd
->meta
.u
.callback
&&
2349 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
2352 iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
2354 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
2355 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
2356 wake_up_interruptible(&priv
->wait_command_queue
);
2361 * this should be called while priv->lock is locked
2363 static void __iwl_rx_replenish(struct iwl_priv
*priv
)
2365 iwl_rx_allocate(priv
);
2366 iwl_rx_queue_restock(priv
);
2371 * iwl_rx_handle - Main entry function for receiving responses from uCode
2373 * Uses the priv->rx_handlers callback function array to invoke
2374 * the appropriate handlers, including command responses,
2375 * frame-received notifications, and other notifications.
2377 void iwl_rx_handle(struct iwl_priv
*priv
)
2379 struct iwl_rx_mem_buffer
*rxb
;
2380 struct iwl_rx_packet
*pkt
;
2381 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
2384 unsigned long flags
;
2388 /* uCode's read index (stored in shared DRAM) indicates the last Rx
2389 * buffer that the driver may process (last buffer filled by ucode). */
2390 r
= priv
->cfg
->ops
->lib
->shared_mem_rx_idx(priv
);
2393 /* Rx interrupt, but nothing sent from uCode */
2395 IWL_DEBUG(IWL_DL_RX
, "r = %d, i = %d\n", r
, i
);
2397 if (iwl_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
2401 rxb
= rxq
->queue
[i
];
2403 /* If an RXB doesn't have a Rx queue slot associated with it,
2404 * then a bug has been introduced in the queue refilling
2405 * routines -- catch it here */
2406 BUG_ON(rxb
== NULL
);
2408 rxq
->queue
[i
] = NULL
;
2410 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
2411 priv
->hw_params
.rx_buf_size
,
2412 PCI_DMA_FROMDEVICE
);
2413 pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2415 /* Reclaim a command buffer only if this packet is a response
2416 * to a (driver-originated) command.
2417 * If the packet (e.g. Rx frame) originated from uCode,
2418 * there is no command buffer to reclaim.
2419 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
2420 * but apparently a few don't get set; catch them here. */
2421 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
2422 (pkt
->hdr
.cmd
!= REPLY_RX_PHY_CMD
) &&
2423 (pkt
->hdr
.cmd
!= REPLY_RX
) &&
2424 (pkt
->hdr
.cmd
!= REPLY_COMPRESSED_BA
) &&
2425 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
2426 (pkt
->hdr
.cmd
!= REPLY_TX
);
2428 /* Based on type of command response or notification,
2429 * handle those that need handling via function in
2430 * rx_handlers table. See iwl4965_setup_rx_handlers() */
2431 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
2432 IWL_DEBUG(IWL_DL_RX
, "r = %d, i = %d, %s, 0x%02x\n", r
,
2433 i
, get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
2434 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
2436 /* No handling needed */
2437 IWL_DEBUG(IWL_DL_RX
,
2438 "r %d i %d No handler needed for %s, 0x%02x\n",
2439 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
2444 /* Invoke any callbacks, transfer the skb to caller, and
2445 * fire off the (possibly) blocking iwl_send_cmd()
2446 * as we reclaim the driver command queue */
2447 if (rxb
&& rxb
->skb
)
2448 iwl4965_tx_cmd_complete(priv
, rxb
);
2450 IWL_WARNING("Claim null rxb?\n");
2453 /* For now we just don't re-use anything. We can tweak this
2454 * later to try and re-use notification packets and SKBs that
2455 * fail to Rx correctly */
2456 if (rxb
->skb
!= NULL
) {
2457 priv
->alloc_rxb_skb
--;
2458 dev_kfree_skb_any(rxb
->skb
);
2462 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
2463 priv
->hw_params
.rx_buf_size
,
2464 PCI_DMA_FROMDEVICE
);
2465 spin_lock_irqsave(&rxq
->lock
, flags
);
2466 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
2467 spin_unlock_irqrestore(&rxq
->lock
, flags
);
2468 i
= (i
+ 1) & RX_QUEUE_MASK
;
2469 /* If there are a lot of unused frames,
2470 * restock the Rx queue so ucode wont assert. */
2475 __iwl_rx_replenish(priv
);
2481 /* Backtrack one entry */
2483 iwl_rx_queue_restock(priv
);
2485 /* Convert linear signal-to-noise ratio into dB */
2486 static u8 ratio2dB
[100] = {
2487 /* 0 1 2 3 4 5 6 7 8 9 */
2488 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
2489 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
2490 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
2491 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
2492 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
2493 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
2494 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
2495 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
2496 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
2497 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
2500 /* Calculates a relative dB value from a ratio of linear
2501 * (i.e. not dB) signal levels.
2502 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
2503 int iwl4965_calc_db_from_ratio(int sig_ratio
)
2505 /* 1000:1 or higher just report as 60 dB */
2506 if (sig_ratio
>= 1000)
2509 /* 100:1 or higher, divide by 10 and use table,
2510 * add 20 dB to make up for divide by 10 */
2511 if (sig_ratio
>= 100)
2512 return (20 + (int)ratio2dB
[sig_ratio
/10]);
2514 /* We shouldn't see this */
2518 /* Use table for ratios 1:1 - 99:1 */
2519 return (int)ratio2dB
[sig_ratio
];
2522 #define PERFECT_RSSI (-20) /* dBm */
2523 #define WORST_RSSI (-95) /* dBm */
2524 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
2526 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
2527 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
2528 * about formulas used below. */
2529 int iwl4965_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
2532 int degradation
= PERFECT_RSSI
- rssi_dbm
;
2534 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
2535 * as indicator; formula is (signal dbm - noise dbm).
2536 * SNR at or above 40 is a great signal (100%).
2537 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
2538 * Weakest usable signal is usually 10 - 15 dB SNR. */
2540 if (rssi_dbm
- noise_dbm
>= 40)
2542 else if (rssi_dbm
< noise_dbm
)
2544 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
2546 /* Else use just the signal level.
2547 * This formula is a least squares fit of data points collected and
2548 * compared with a reference system that had a percentage (%) display
2549 * for signal quality. */
2551 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
2552 (15 * RSSI_RANGE
+ 62 * degradation
)) /
2553 (RSSI_RANGE
* RSSI_RANGE
);
2557 else if (sig_qual
< 1)
2563 #ifdef CONFIG_IWLWIFI_DEBUG
2564 static void iwl4965_print_rx_config_cmd(struct iwl_priv
*priv
)
2566 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
2567 DECLARE_MAC_BUF(mac
);
2569 IWL_DEBUG_RADIO("RX CONFIG:\n");
2570 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
2571 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
2572 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
2573 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
2574 le32_to_cpu(rxon
->filter_flags
));
2575 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
2576 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
2577 rxon
->ofdm_basic_rates
);
2578 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
2579 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
2580 print_mac(mac
, rxon
->node_addr
));
2581 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
2582 print_mac(mac
, rxon
->bssid_addr
));
2583 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
2587 static void iwl4965_enable_interrupts(struct iwl_priv
*priv
)
2589 IWL_DEBUG_ISR("Enabling interrupts\n");
2590 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
2591 iwl_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
2594 /* call this function to flush any scheduled tasklet */
2595 static inline void iwl_synchronize_irq(struct iwl_priv
*priv
)
2597 /* wait to make sure we flush pedding tasklet*/
2598 synchronize_irq(priv
->pci_dev
->irq
);
2599 tasklet_kill(&priv
->irq_tasklet
);
2602 static inline void iwl4965_disable_interrupts(struct iwl_priv
*priv
)
2604 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
2606 /* disable interrupts from uCode/NIC to host */
2607 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
2609 /* acknowledge/clear/reset any interrupts still pending
2610 * from uCode or flow handler (Rx/Tx DMA) */
2611 iwl_write32(priv
, CSR_INT
, 0xffffffff);
2612 iwl_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
2613 IWL_DEBUG_ISR("Disabled interrupts\n");
2616 static const char *desc_lookup(int i
)
2624 return "BAD_CHECKSUM";
2626 return "NMI_INTERRUPT";
2630 return "FATAL_ERROR";
2636 #define ERROR_START_OFFSET (1 * sizeof(u32))
2637 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
2639 static void iwl4965_dump_nic_error_log(struct iwl_priv
*priv
)
2642 u32 desc
, time
, count
, base
, data1
;
2643 u32 blink1
, blink2
, ilink1
, ilink2
;
2646 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
2648 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
2649 IWL_ERROR("Not valid error log pointer 0x%08X\n", base
);
2653 rc
= iwl_grab_nic_access(priv
);
2655 IWL_WARNING("Can not read from adapter at this time.\n");
2659 count
= iwl_read_targ_mem(priv
, base
);
2661 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
2662 IWL_ERROR("Start IWL Error Log Dump:\n");
2663 IWL_ERROR("Status: 0x%08lX, count: %d\n", priv
->status
, count
);
2666 desc
= iwl_read_targ_mem(priv
, base
+ 1 * sizeof(u32
));
2667 blink1
= iwl_read_targ_mem(priv
, base
+ 3 * sizeof(u32
));
2668 blink2
= iwl_read_targ_mem(priv
, base
+ 4 * sizeof(u32
));
2669 ilink1
= iwl_read_targ_mem(priv
, base
+ 5 * sizeof(u32
));
2670 ilink2
= iwl_read_targ_mem(priv
, base
+ 6 * sizeof(u32
));
2671 data1
= iwl_read_targ_mem(priv
, base
+ 7 * sizeof(u32
));
2672 data2
= iwl_read_targ_mem(priv
, base
+ 8 * sizeof(u32
));
2673 line
= iwl_read_targ_mem(priv
, base
+ 9 * sizeof(u32
));
2674 time
= iwl_read_targ_mem(priv
, base
+ 11 * sizeof(u32
));
2676 IWL_ERROR("Desc Time "
2677 "data1 data2 line\n");
2678 IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n",
2679 desc_lookup(desc
), desc
, time
, data1
, data2
, line
);
2680 IWL_ERROR("blink1 blink2 ilink1 ilink2\n");
2681 IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1
, blink2
,
2684 iwl_release_nic_access(priv
);
2688 * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
2690 static void iwl4965_irq_handle_error(struct iwl_priv
*priv
)
2692 /* Set the FW error flag -- cleared on iwl4965_down */
2693 set_bit(STATUS_FW_ERROR
, &priv
->status
);
2695 /* Cancel currently queued command. */
2696 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
2698 #ifdef CONFIG_IWLWIFI_DEBUG
2699 if (priv
->debug_level
& IWL_DL_FW_ERRORS
) {
2700 iwl4965_dump_nic_error_log(priv
);
2701 iwl_dump_nic_event_log(priv
);
2702 iwl4965_print_rx_config_cmd(priv
);
2706 wake_up_interruptible(&priv
->wait_command_queue
);
2708 /* Keep the restart process from trying to send host
2709 * commands by clearing the INIT status bit */
2710 clear_bit(STATUS_READY
, &priv
->status
);
2712 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
2713 IWL_DEBUG(IWL_DL_FW_ERRORS
,
2714 "Restarting adapter due to uCode error.\n");
2716 if (iwl_is_associated(priv
)) {
2717 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
2718 sizeof(priv
->recovery_rxon
));
2719 priv
->error_recovering
= 1;
2721 if (priv
->cfg
->mod_params
->restart_fw
)
2722 queue_work(priv
->workqueue
, &priv
->restart
);
2726 static void iwl4965_error_recovery(struct iwl_priv
*priv
)
2728 unsigned long flags
;
2730 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
2731 sizeof(priv
->staging_rxon
));
2732 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2733 iwl4965_commit_rxon(priv
);
2735 iwl_rxon_add_station(priv
, priv
->bssid
, 1);
2737 spin_lock_irqsave(&priv
->lock
, flags
);
2738 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
2739 priv
->error_recovering
= 0;
2740 spin_unlock_irqrestore(&priv
->lock
, flags
);
2743 static void iwl4965_irq_tasklet(struct iwl_priv
*priv
)
2745 u32 inta
, handled
= 0;
2747 unsigned long flags
;
2748 #ifdef CONFIG_IWLWIFI_DEBUG
2752 spin_lock_irqsave(&priv
->lock
, flags
);
2754 /* Ack/clear/reset pending uCode interrupts.
2755 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
2756 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
2757 inta
= iwl_read32(priv
, CSR_INT
);
2758 iwl_write32(priv
, CSR_INT
, inta
);
2760 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
2761 * Any new interrupts that happen after this, either while we're
2762 * in this tasklet, or later, will show up in next ISR/tasklet. */
2763 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
2764 iwl_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
2766 #ifdef CONFIG_IWLWIFI_DEBUG
2767 if (priv
->debug_level
& IWL_DL_ISR
) {
2768 /* just for debug */
2769 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
2770 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
2771 inta
, inta_mask
, inta_fh
);
2775 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
2776 * atomic, make sure that inta covers all the interrupts that
2777 * we've discovered, even if FH interrupt came in just after
2778 * reading CSR_INT. */
2779 if (inta_fh
& CSR49_FH_INT_RX_MASK
)
2780 inta
|= CSR_INT_BIT_FH_RX
;
2781 if (inta_fh
& CSR49_FH_INT_TX_MASK
)
2782 inta
|= CSR_INT_BIT_FH_TX
;
2784 /* Now service all interrupt bits discovered above. */
2785 if (inta
& CSR_INT_BIT_HW_ERR
) {
2786 IWL_ERROR("Microcode HW error detected. Restarting.\n");
2788 /* Tell the device to stop sending interrupts */
2789 iwl4965_disable_interrupts(priv
);
2791 iwl4965_irq_handle_error(priv
);
2793 handled
|= CSR_INT_BIT_HW_ERR
;
2795 spin_unlock_irqrestore(&priv
->lock
, flags
);
2800 #ifdef CONFIG_IWLWIFI_DEBUG
2801 if (priv
->debug_level
& (IWL_DL_ISR
)) {
2802 /* NIC fires this, but we don't use it, redundant with WAKEUP */
2803 if (inta
& CSR_INT_BIT_SCD
)
2804 IWL_DEBUG_ISR("Scheduler finished to transmit "
2805 "the frame/frames.\n");
2807 /* Alive notification via Rx interrupt will do the real work */
2808 if (inta
& CSR_INT_BIT_ALIVE
)
2809 IWL_DEBUG_ISR("Alive interrupt\n");
2812 /* Safely ignore these bits for debug checks below */
2813 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
2815 /* HW RF KILL switch toggled */
2816 if (inta
& CSR_INT_BIT_RF_KILL
) {
2818 if (!(iwl_read32(priv
, CSR_GP_CNTRL
) &
2819 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
2822 IWL_DEBUG(IWL_DL_RF_KILL
, "RF_KILL bit toggled to %s.\n",
2823 hw_rf_kill
? "disable radio":"enable radio");
2825 /* Queue restart only if RF_KILL switch was set to "kill"
2826 * when we loaded driver, and is now set to "enable".
2827 * After we're Alive, RF_KILL gets handled by
2828 * iwl4965_rx_card_state_notif() */
2829 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
2830 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2831 queue_work(priv
->workqueue
, &priv
->restart
);
2834 handled
|= CSR_INT_BIT_RF_KILL
;
2837 /* Chip got too hot and stopped itself */
2838 if (inta
& CSR_INT_BIT_CT_KILL
) {
2839 IWL_ERROR("Microcode CT kill error detected.\n");
2840 handled
|= CSR_INT_BIT_CT_KILL
;
2843 /* Error detected by uCode */
2844 if (inta
& CSR_INT_BIT_SW_ERR
) {
2845 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
2847 iwl4965_irq_handle_error(priv
);
2848 handled
|= CSR_INT_BIT_SW_ERR
;
2851 /* uCode wakes up after power-down sleep */
2852 if (inta
& CSR_INT_BIT_WAKEUP
) {
2853 IWL_DEBUG_ISR("Wakeup interrupt\n");
2854 iwl_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
2855 iwl_txq_update_write_ptr(priv
, &priv
->txq
[0]);
2856 iwl_txq_update_write_ptr(priv
, &priv
->txq
[1]);
2857 iwl_txq_update_write_ptr(priv
, &priv
->txq
[2]);
2858 iwl_txq_update_write_ptr(priv
, &priv
->txq
[3]);
2859 iwl_txq_update_write_ptr(priv
, &priv
->txq
[4]);
2860 iwl_txq_update_write_ptr(priv
, &priv
->txq
[5]);
2862 handled
|= CSR_INT_BIT_WAKEUP
;
2865 /* All uCode command responses, including Tx command responses,
2866 * Rx "responses" (frame-received notification), and other
2867 * notifications from uCode come through here*/
2868 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
2869 iwl_rx_handle(priv
);
2870 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
2873 if (inta
& CSR_INT_BIT_FH_TX
) {
2874 IWL_DEBUG_ISR("Tx interrupt\n");
2875 handled
|= CSR_INT_BIT_FH_TX
;
2876 /* FH finished to write, send event */
2877 priv
->ucode_write_complete
= 1;
2878 wake_up_interruptible(&priv
->wait_command_queue
);
2881 if (inta
& ~handled
)
2882 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
2884 if (inta
& ~CSR_INI_SET_MASK
) {
2885 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
2886 inta
& ~CSR_INI_SET_MASK
);
2887 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
2890 /* Re-enable all interrupts */
2891 /* only Re-enable if diabled by irq */
2892 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
2893 iwl4965_enable_interrupts(priv
);
2895 #ifdef CONFIG_IWLWIFI_DEBUG
2896 if (priv
->debug_level
& (IWL_DL_ISR
)) {
2897 inta
= iwl_read32(priv
, CSR_INT
);
2898 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
2899 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
2900 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
2901 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
2904 spin_unlock_irqrestore(&priv
->lock
, flags
);
2907 static irqreturn_t
iwl4965_isr(int irq
, void *data
)
2909 struct iwl_priv
*priv
= data
;
2910 u32 inta
, inta_mask
;
2915 spin_lock(&priv
->lock
);
2917 /* Disable (but don't clear!) interrupts here to avoid
2918 * back-to-back ISRs and sporadic interrupts from our NIC.
2919 * If we have something to service, the tasklet will re-enable ints.
2920 * If we *don't* have something, we'll re-enable before leaving here. */
2921 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
2922 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
2924 /* Discover which interrupts are active/pending */
2925 inta
= iwl_read32(priv
, CSR_INT
);
2926 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
2928 /* Ignore interrupt if there's nothing in NIC to service.
2929 * This may be due to IRQ shared with another device,
2930 * or due to sporadic interrupts thrown from our NIC. */
2931 if (!inta
&& !inta_fh
) {
2932 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
2936 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
2937 /* Hardware disappeared. It might have already raised
2939 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
2943 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
2944 inta
, inta_mask
, inta_fh
);
2946 inta
&= ~CSR_INT_BIT_SCD
;
2948 /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
2949 if (likely(inta
|| inta_fh
))
2950 tasklet_schedule(&priv
->irq_tasklet
);
2953 spin_unlock(&priv
->lock
);
2957 /* re-enable interrupts here since we don't have anything to service. */
2958 /* only Re-enable if diabled by irq */
2959 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
2960 iwl4965_enable_interrupts(priv
);
2961 spin_unlock(&priv
->lock
);
2965 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
2966 * sending probe req. This should be set long enough to hear probe responses
2967 * from more than one AP. */
2968 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
2969 #define IWL_ACTIVE_DWELL_TIME_52 (10)
2971 /* For faster active scanning, scan will move to the next channel if fewer than
2972 * PLCP_QUIET_THRESH packets are heard on this channel within
2973 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
2974 * time if it's a quiet channel (nothing responded to our probe, and there's
2975 * no other traffic).
2976 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
2977 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
2978 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
2980 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
2981 * Must be set longer than active dwell time.
2982 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
2983 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
2984 #define IWL_PASSIVE_DWELL_TIME_52 (10)
2985 #define IWL_PASSIVE_DWELL_BASE (100)
2986 #define IWL_CHANNEL_TUNE_TIME 5
2988 static inline u16
iwl4965_get_active_dwell_time(struct iwl_priv
*priv
,
2989 enum ieee80211_band band
)
2991 if (band
== IEEE80211_BAND_5GHZ
)
2992 return IWL_ACTIVE_DWELL_TIME_52
;
2994 return IWL_ACTIVE_DWELL_TIME_24
;
2997 static u16
iwl4965_get_passive_dwell_time(struct iwl_priv
*priv
,
2998 enum ieee80211_band band
)
3000 u16 active
= iwl4965_get_active_dwell_time(priv
, band
);
3001 u16 passive
= (band
!= IEEE80211_BAND_5GHZ
) ?
3002 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
3003 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
3005 if (iwl_is_associated(priv
)) {
3006 /* If we're associated, we clamp the maximum passive
3007 * dwell time to be 98% of the beacon interval (minus
3008 * 2 * channel tune time) */
3009 passive
= priv
->beacon_int
;
3010 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
3011 passive
= IWL_PASSIVE_DWELL_BASE
;
3012 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
3015 if (passive
<= active
)
3016 passive
= active
+ 1;
3021 static int iwl4965_get_channels_for_scan(struct iwl_priv
*priv
,
3022 enum ieee80211_band band
,
3023 u8 is_active
, u8 direct_mask
,
3024 struct iwl4965_scan_channel
*scan_ch
)
3026 const struct ieee80211_channel
*channels
= NULL
;
3027 const struct ieee80211_supported_band
*sband
;
3028 const struct iwl_channel_info
*ch_info
;
3029 u16 passive_dwell
= 0;
3030 u16 active_dwell
= 0;
3033 sband
= iwl_get_hw_mode(priv
, band
);
3037 channels
= sband
->channels
;
3039 active_dwell
= iwl4965_get_active_dwell_time(priv
, band
);
3040 passive_dwell
= iwl4965_get_passive_dwell_time(priv
, band
);
3042 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
3043 if (channels
[i
].flags
& IEEE80211_CHAN_DISABLED
)
3046 scan_ch
->channel
= ieee80211_frequency_to_channel(channels
[i
].center_freq
);
3048 ch_info
= iwl_get_channel_info(priv
, band
,
3050 if (!is_channel_valid(ch_info
)) {
3051 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
3056 if (!is_active
|| is_channel_passive(ch_info
) ||
3057 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
))
3058 scan_ch
->type
= 0; /* passive */
3060 scan_ch
->type
= 1; /* active */
3062 if (scan_ch
->type
& 1)
3063 scan_ch
->type
|= (direct_mask
<< 1);
3065 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
3066 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
3068 /* Set txpower levels to defaults */
3069 scan_ch
->tpc
.dsp_atten
= 110;
3070 /* scan_pwr_info->tpc.dsp_atten; */
3072 /*scan_pwr_info->tpc.tx_gain; */
3073 if (band
== IEEE80211_BAND_5GHZ
)
3074 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
3076 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
3077 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
3079 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
3083 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
3085 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
3086 (scan_ch
->type
& 1) ?
3087 active_dwell
: passive_dwell
);
3093 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
3097 /******************************************************************************
3099 * uCode download functions
3101 ******************************************************************************/
3103 static void iwl4965_dealloc_ucode_pci(struct iwl_priv
*priv
)
3105 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
3106 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
3107 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
3108 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
3109 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
3110 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
3113 static void iwl4965_nic_start(struct iwl_priv
*priv
)
3115 /* Remove all resets to allow NIC to operate */
3116 iwl_write32(priv
, CSR_RESET
, 0);
3121 * iwl4965_read_ucode - Read uCode images from disk file.
3123 * Copy into buffers for card to fetch via bus-mastering
3125 static int iwl4965_read_ucode(struct iwl_priv
*priv
)
3127 struct iwl4965_ucode
*ucode
;
3129 const struct firmware
*ucode_raw
;
3130 const char *name
= priv
->cfg
->fw_name
;
3133 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
3135 /* Ask kernel firmware_class module to get the boot firmware off disk.
3136 * request_firmware() is synchronous, file is in memory on return. */
3137 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
3139 IWL_ERROR("%s firmware file req failed: Reason %d\n",
3144 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
3145 name
, ucode_raw
->size
);
3147 /* Make sure that we got at least our header! */
3148 if (ucode_raw
->size
< sizeof(*ucode
)) {
3149 IWL_ERROR("File size way too small!\n");
3154 /* Data from ucode file: header followed by uCode images */
3155 ucode
= (void *)ucode_raw
->data
;
3157 ver
= le32_to_cpu(ucode
->ver
);
3158 inst_size
= le32_to_cpu(ucode
->inst_size
);
3159 data_size
= le32_to_cpu(ucode
->data_size
);
3160 init_size
= le32_to_cpu(ucode
->init_size
);
3161 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
3162 boot_size
= le32_to_cpu(ucode
->boot_size
);
3164 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
3165 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
3167 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
3169 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
3171 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
3173 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
3176 /* Verify size of file vs. image size info in file's header */
3177 if (ucode_raw
->size
< sizeof(*ucode
) +
3178 inst_size
+ data_size
+ init_size
+
3179 init_data_size
+ boot_size
) {
3181 IWL_DEBUG_INFO("uCode file size %d too small\n",
3182 (int)ucode_raw
->size
);
3187 /* Verify that uCode images will fit in card's SRAM */
3188 if (inst_size
> priv
->hw_params
.max_inst_size
) {
3189 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
3195 if (data_size
> priv
->hw_params
.max_data_size
) {
3196 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
3201 if (init_size
> priv
->hw_params
.max_inst_size
) {
3203 ("uCode init instr len %d too large to fit in\n",
3208 if (init_data_size
> priv
->hw_params
.max_data_size
) {
3210 ("uCode init data len %d too large to fit in\n",
3215 if (boot_size
> priv
->hw_params
.max_bsm_size
) {
3217 ("uCode boot instr len %d too large to fit in\n",
3223 /* Allocate ucode buffers for card's bus-master loading ... */
3225 /* Runtime instructions and 2 copies of data:
3226 * 1) unmodified from disk
3227 * 2) backup cache for save/restore during power-downs */
3228 priv
->ucode_code
.len
= inst_size
;
3229 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
3231 priv
->ucode_data
.len
= data_size
;
3232 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
3234 priv
->ucode_data_backup
.len
= data_size
;
3235 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
3237 /* Initialization instructions and data */
3238 if (init_size
&& init_data_size
) {
3239 priv
->ucode_init
.len
= init_size
;
3240 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
3242 priv
->ucode_init_data
.len
= init_data_size
;
3243 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
3245 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
3249 /* Bootstrap (instructions only, no data) */
3251 priv
->ucode_boot
.len
= boot_size
;
3252 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
3254 if (!priv
->ucode_boot
.v_addr
)
3258 /* Copy images into buffers for card's bus-master reads ... */
3260 /* Runtime instructions (first block of data in file) */
3261 src
= &ucode
->data
[0];
3262 len
= priv
->ucode_code
.len
;
3263 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
3264 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
3265 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
3266 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
3268 /* Runtime data (2nd block)
3269 * NOTE: Copy into backup buffer will be done in iwl4965_up() */
3270 src
= &ucode
->data
[inst_size
];
3271 len
= priv
->ucode_data
.len
;
3272 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
3273 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
3274 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
3276 /* Initialization instructions (3rd block) */
3278 src
= &ucode
->data
[inst_size
+ data_size
];
3279 len
= priv
->ucode_init
.len
;
3280 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
3282 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
3285 /* Initialization data (4th block) */
3286 if (init_data_size
) {
3287 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
3288 len
= priv
->ucode_init_data
.len
;
3289 IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
3291 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
3294 /* Bootstrap instructions (5th block) */
3295 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
3296 len
= priv
->ucode_boot
.len
;
3297 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len
);
3298 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
3300 /* We have our copies now, allow OS release its copies */
3301 release_firmware(ucode_raw
);
3305 IWL_ERROR("failed to allocate pci memory\n");
3307 iwl4965_dealloc_ucode_pci(priv
);
3310 release_firmware(ucode_raw
);
3317 * iwl4965_alive_start - called after REPLY_ALIVE notification received
3318 * from protocol/runtime uCode (initialization uCode's
3319 * Alive gets handled by iwl4965_init_alive_start()).
3321 static void iwl4965_alive_start(struct iwl_priv
*priv
)
3325 IWL_DEBUG_INFO("Runtime Alive received.\n");
3327 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
3328 /* We had an error bringing up the hardware, so take it
3329 * all the way back down so we can try again */
3330 IWL_DEBUG_INFO("Alive failed.\n");
3334 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
3335 * This is a paranoid check, because we would not have gotten the
3336 * "runtime" alive if code weren't properly loaded. */
3337 if (iwl_verify_ucode(priv
)) {
3338 /* Runtime instruction load was bad;
3339 * take it all the way back down so we can try again */
3340 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
3344 iwlcore_clear_stations_table(priv
);
3346 ret
= priv
->cfg
->ops
->lib
->alive_notify(priv
);
3348 IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
3353 /* After the ALIVE response, we can send host commands to 4965 uCode */
3354 set_bit(STATUS_ALIVE
, &priv
->status
);
3356 /* Clear out the uCode error bit if it is set */
3357 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
3359 if (iwl_is_rfkill(priv
))
3362 ieee80211_wake_queues(priv
->hw
);
3364 priv
->active_rate
= priv
->rates_mask
;
3365 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
3367 if (iwl_is_associated(priv
)) {
3368 struct iwl_rxon_cmd
*active_rxon
=
3369 (struct iwl_rxon_cmd
*)&priv
->active_rxon
;
3371 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
3372 sizeof(priv
->staging_rxon
));
3373 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
3375 /* Initialize our rx_config data */
3376 iwl4965_connection_init_rx_config(priv
);
3377 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
3380 /* Configure Bluetooth device coexistence support */
3381 iwl4965_send_bt_config(priv
);
3383 /* Configure the adapter for unassociated operation */
3384 iwl4965_commit_rxon(priv
);
3386 /* At this point, the NIC is initialized and operational */
3387 priv
->notif_missed_beacons
= 0;
3389 iwl4965_rf_kill_ct_config(priv
);
3391 iwl_leds_register(priv
);
3393 IWL_DEBUG_INFO("ALIVE processing complete.\n");
3394 set_bit(STATUS_READY
, &priv
->status
);
3395 wake_up_interruptible(&priv
->wait_command_queue
);
3397 if (priv
->error_recovering
)
3398 iwl4965_error_recovery(priv
);
3400 iwlcore_low_level_notify(priv
, IWLCORE_START_EVT
);
3401 ieee80211_notify_mac(priv
->hw
, IEEE80211_NOTIFY_RE_ASSOC
);
3405 queue_work(priv
->workqueue
, &priv
->restart
);
3408 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
);
3410 static void __iwl4965_down(struct iwl_priv
*priv
)
3412 unsigned long flags
;
3413 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3414 struct ieee80211_conf
*conf
= NULL
;
3416 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
3418 conf
= ieee80211_get_hw_conf(priv
->hw
);
3421 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3423 iwl_leds_unregister(priv
);
3425 iwlcore_low_level_notify(priv
, IWLCORE_STOP_EVT
);
3427 iwlcore_clear_stations_table(priv
);
3429 /* Unblock any waiting calls */
3430 wake_up_interruptible_all(&priv
->wait_command_queue
);
3432 /* Wipe out the EXIT_PENDING status bit if we are not actually
3433 * exiting the module */
3435 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3437 /* stop and reset the on-board processor */
3438 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
3440 /* tell the device to stop sending interrupts */
3441 spin_lock_irqsave(&priv
->lock
, flags
);
3442 iwl4965_disable_interrupts(priv
);
3443 spin_unlock_irqrestore(&priv
->lock
, flags
);
3444 iwl_synchronize_irq(priv
);
3446 if (priv
->mac80211_registered
)
3447 ieee80211_stop_queues(priv
->hw
);
3449 /* If we have not previously called iwl4965_init() then
3450 * clear all bits but the RF Kill and SUSPEND bits and return */
3451 if (!iwl_is_init(priv
)) {
3452 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
3454 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
3456 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
3457 STATUS_GEO_CONFIGURED
|
3458 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
3463 /* ...otherwise clear out all the status bits but the RF Kill and
3464 * SUSPEND bits and continue taking the NIC down. */
3465 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
3467 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
3469 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
3470 STATUS_GEO_CONFIGURED
|
3471 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
3473 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
3476 spin_lock_irqsave(&priv
->lock
, flags
);
3477 iwl_clear_bit(priv
, CSR_GP_CNTRL
,
3478 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3479 spin_unlock_irqrestore(&priv
->lock
, flags
);
3481 iwl4965_hw_txq_ctx_stop(priv
);
3482 iwl4965_hw_rxq_stop(priv
);
3484 spin_lock_irqsave(&priv
->lock
, flags
);
3485 if (!iwl_grab_nic_access(priv
)) {
3486 iwl_write_prph(priv
, APMG_CLK_DIS_REG
,
3487 APMG_CLK_VAL_DMA_CLK_RQT
);
3488 iwl_release_nic_access(priv
);
3490 spin_unlock_irqrestore(&priv
->lock
, flags
);
3494 iwl4965_hw_nic_stop_master(priv
);
3495 iwl_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
3496 iwl4965_hw_nic_reset(priv
);
3497 priv
->cfg
->ops
->lib
->free_shared_mem(priv
);
3500 memset(&priv
->card_alive
, 0, sizeof(struct iwl4965_alive_resp
));
3502 if (priv
->ibss_beacon
)
3503 dev_kfree_skb(priv
->ibss_beacon
);
3504 priv
->ibss_beacon
= NULL
;
3506 /* clear out any free frames */
3507 iwl_clear_free_frames(priv
);
3510 static void iwl4965_down(struct iwl_priv
*priv
)
3512 mutex_lock(&priv
->mutex
);
3513 __iwl4965_down(priv
);
3514 mutex_unlock(&priv
->mutex
);
3516 iwl4965_cancel_deferred_work(priv
);
3519 #define MAX_HW_RESTARTS 5
3521 static int __iwl4965_up(struct iwl_priv
*priv
)
3526 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
3527 IWL_WARNING("Exit pending; will not bring the NIC up\n");
3531 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
3532 IWL_WARNING("Radio disabled by SW RF kill (module "
3534 iwl_rfkill_set_hw_state(priv
);
3538 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
3539 IWL_ERROR("ucode not available for device bringup\n");
3543 /* If platform's RF_KILL switch is NOT set to KILL */
3544 if (iwl_read32(priv
, CSR_GP_CNTRL
) &
3545 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
3546 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3548 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3549 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
3550 iwl_rfkill_set_hw_state(priv
);
3551 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
3556 iwl_rfkill_set_hw_state(priv
);
3557 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
3559 ret
= priv
->cfg
->ops
->lib
->alloc_shared_mem(priv
);
3561 IWL_ERROR("Unable to allocate shared memory\n");
3565 ret
= iwl_hw_nic_init(priv
);
3567 IWL_ERROR("Unable to init nic\n");
3571 /* make sure rfkill handshake bits are cleared */
3572 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3573 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
3574 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3576 /* clear (again), then enable host interrupts */
3577 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
3578 iwl4965_enable_interrupts(priv
);
3580 /* really make sure rfkill handshake bits are cleared */
3581 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3582 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3584 /* Copy original ucode data image from disk into backup cache.
3585 * This will be used to initialize the on-board processor's
3586 * data SRAM for a clean start when the runtime program first loads. */
3587 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
3588 priv
->ucode_data
.len
);
3590 /* We return success when we resume from suspend and rf_kill is on. */
3591 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
3594 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
3596 iwlcore_clear_stations_table(priv
);
3598 /* load bootstrap state machine,
3599 * load bootstrap program into processor's memory,
3600 * prepare to load the "initialize" uCode */
3601 ret
= priv
->cfg
->ops
->lib
->load_ucode(priv
);
3604 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret
);
3608 /* start card; "initialize" will load runtime ucode */
3609 iwl4965_nic_start(priv
);
3611 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
3616 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3617 __iwl4965_down(priv
);
3619 /* tried to restart and config the device for as long as our
3620 * patience could withstand */
3621 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
3626 /*****************************************************************************
3628 * Workqueue callbacks
3630 *****************************************************************************/
3632 static void iwl4965_bg_init_alive_start(struct work_struct
*data
)
3634 struct iwl_priv
*priv
=
3635 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
3637 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3640 mutex_lock(&priv
->mutex
);
3641 priv
->cfg
->ops
->lib
->init_alive_start(priv
);
3642 mutex_unlock(&priv
->mutex
);
3645 static void iwl4965_bg_alive_start(struct work_struct
*data
)
3647 struct iwl_priv
*priv
=
3648 container_of(data
, struct iwl_priv
, alive_start
.work
);
3650 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3653 mutex_lock(&priv
->mutex
);
3654 iwl4965_alive_start(priv
);
3655 mutex_unlock(&priv
->mutex
);
3658 static void iwl4965_bg_rf_kill(struct work_struct
*work
)
3660 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, rf_kill
);
3662 wake_up_interruptible(&priv
->wait_command_queue
);
3664 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3667 mutex_lock(&priv
->mutex
);
3669 if (!iwl_is_rfkill(priv
)) {
3670 IWL_DEBUG(IWL_DL_RF_KILL
,
3671 "HW and/or SW RF Kill no longer active, restarting "
3673 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3674 queue_work(priv
->workqueue
, &priv
->restart
);
3676 /* make sure mac80211 stop sending Tx frame */
3677 if (priv
->mac80211_registered
)
3678 ieee80211_stop_queues(priv
->hw
);
3680 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
3681 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
3682 "disabled by SW switch\n");
3684 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
3685 "Kill switch must be turned off for "
3686 "wireless networking to work.\n");
3688 iwl_rfkill_set_hw_state(priv
);
3690 mutex_unlock(&priv
->mutex
);
3693 static void iwl4965_bg_set_monitor(struct work_struct
*work
)
3695 struct iwl_priv
*priv
= container_of(work
,
3696 struct iwl_priv
, set_monitor
);
3698 IWL_DEBUG(IWL_DL_STATE
, "setting monitor mode\n");
3700 mutex_lock(&priv
->mutex
);
3702 if (!iwl_is_ready(priv
))
3703 IWL_DEBUG(IWL_DL_STATE
, "leave - not ready\n");
3705 if (iwl4965_set_mode(priv
, IEEE80211_IF_TYPE_MNTR
) != 0)
3706 IWL_ERROR("iwl4965_set_mode() failed\n");
3708 mutex_unlock(&priv
->mutex
);
3711 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
3713 static void iwl4965_bg_scan_check(struct work_struct
*data
)
3715 struct iwl_priv
*priv
=
3716 container_of(data
, struct iwl_priv
, scan_check
.work
);
3718 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3721 mutex_lock(&priv
->mutex
);
3722 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
3723 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3724 IWL_DEBUG(IWL_DL_SCAN
, "Scan completion watchdog resetting "
3726 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
3728 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3729 iwl4965_send_scan_abort(priv
);
3731 mutex_unlock(&priv
->mutex
);
3734 static void iwl4965_bg_request_scan(struct work_struct
*data
)
3736 struct iwl_priv
*priv
=
3737 container_of(data
, struct iwl_priv
, request_scan
);
3738 struct iwl_host_cmd cmd
= {
3739 .id
= REPLY_SCAN_CMD
,
3740 .len
= sizeof(struct iwl4965_scan_cmd
),
3741 .meta
.flags
= CMD_SIZE_HUGE
,
3743 struct iwl4965_scan_cmd
*scan
;
3744 struct ieee80211_conf
*conf
= NULL
;
3746 enum ieee80211_band band
;
3750 conf
= ieee80211_get_hw_conf(priv
->hw
);
3752 mutex_lock(&priv
->mutex
);
3754 if (!iwl_is_ready(priv
)) {
3755 IWL_WARNING("request scan called when driver not ready.\n");
3759 /* Make sure the scan wasn't cancelled before this queued work
3760 * was given the chance to run... */
3761 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
3764 /* This should never be called or scheduled if there is currently
3765 * a scan active in the hardware. */
3766 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
3767 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
3768 "Ignoring second request.\n");
3773 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
3774 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
3778 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3779 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
3783 if (iwl_is_rfkill(priv
)) {
3784 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
3788 if (!test_bit(STATUS_READY
, &priv
->status
)) {
3789 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
3793 if (!priv
->scan_bands
) {
3794 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
3799 priv
->scan
= kmalloc(sizeof(struct iwl4965_scan_cmd
) +
3800 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
3807 memset(scan
, 0, sizeof(struct iwl4965_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
3809 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
3810 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
3812 if (iwl_is_associated(priv
)) {
3815 u32 suspend_time
= 100;
3816 u32 scan_suspend_time
= 100;
3817 unsigned long flags
;
3819 IWL_DEBUG_INFO("Scanning while associated...\n");
3821 spin_lock_irqsave(&priv
->lock
, flags
);
3822 interval
= priv
->beacon_int
;
3823 spin_unlock_irqrestore(&priv
->lock
, flags
);
3825 scan
->suspend_time
= 0;
3826 scan
->max_out_time
= cpu_to_le32(200 * 1024);
3828 interval
= suspend_time
;
3830 extra
= (suspend_time
/ interval
) << 22;
3831 scan_suspend_time
= (extra
|
3832 ((suspend_time
% interval
) * 1024));
3833 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
3834 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
3835 scan_suspend_time
, interval
);
3838 /* We should add the ability for user to lock to PASSIVE ONLY */
3839 if (priv
->one_direct_scan
) {
3841 ("Kicking off one direct scan for '%s'\n",
3842 iwl4965_escape_essid(priv
->direct_ssid
,
3843 priv
->direct_ssid_len
));
3844 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
3845 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
3846 memcpy(scan
->direct_scan
[0].ssid
,
3847 priv
->direct_ssid
, priv
->direct_ssid_len
);
3849 } else if (!iwl_is_associated(priv
) && priv
->essid_len
) {
3851 ("Kicking off one direct scan for '%s' when not associated\n",
3852 iwl4965_escape_essid(priv
->essid
, priv
->essid_len
));
3853 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
3854 scan
->direct_scan
[0].len
= priv
->essid_len
;
3855 memcpy(scan
->direct_scan
[0].ssid
, priv
->essid
, priv
->essid_len
);
3858 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
3862 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
3863 scan
->tx_cmd
.sta_id
= priv
->hw_params
.bcast_sta_id
;
3864 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
3867 switch (priv
->scan_bands
) {
3869 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
3870 scan
->tx_cmd
.rate_n_flags
=
3871 iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP
,
3872 RATE_MCS_ANT_B_MSK
|RATE_MCS_CCK_MSK
);
3874 scan
->good_CRC_th
= 0;
3875 band
= IEEE80211_BAND_2GHZ
;
3879 scan
->tx_cmd
.rate_n_flags
=
3880 iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP
,
3881 RATE_MCS_ANT_B_MSK
);
3882 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
3883 band
= IEEE80211_BAND_5GHZ
;
3887 IWL_WARNING("Invalid scan band count\n");
3891 /* We don't build a direct scan probe request; the uCode will do
3892 * that based on the direct_mask added to each channel entry */
3893 cmd_len
= iwl4965_fill_probe_req(priv
, band
,
3894 (struct ieee80211_mgmt
*)scan
->data
,
3895 IWL_MAX_SCAN_SIZE
- sizeof(*scan
), 0);
3897 scan
->tx_cmd
.len
= cpu_to_le16(cmd_len
);
3898 /* select Rx chains */
3900 /* Force use of chains B and C (0x6) for scan Rx.
3901 * Avoid A (0x1) because of its off-channel reception on A-band.
3902 * MIMO is not used here, but value is required to make uCode happy. */
3903 scan
->rx_chain
= RXON_RX_CHAIN_DRIVER_FORCE_MSK
|
3904 cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS
) |
3905 (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS
) |
3906 (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS
));
3908 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
)
3909 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
3912 scan
->channel_count
=
3913 iwl4965_get_channels_for_scan(
3914 priv
, band
, 1, /* active */
3916 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
3918 scan
->channel_count
=
3919 iwl4965_get_channels_for_scan(
3920 priv
, band
, 0, /* passive */
3922 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
3924 scan
->filter_flags
|= (RXON_FILTER_ACCEPT_GRP_MSK
|
3925 RXON_FILTER_BCON_AWARE_MSK
);
3926 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
3927 scan
->channel_count
* sizeof(struct iwl4965_scan_channel
);
3929 scan
->len
= cpu_to_le16(cmd
.len
);
3931 set_bit(STATUS_SCAN_HW
, &priv
->status
);
3932 ret
= iwl_send_cmd_sync(priv
, &cmd
);
3936 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
3937 IWL_SCAN_CHECK_WATCHDOG
);
3939 mutex_unlock(&priv
->mutex
);
3943 /* inform mac80211 scan aborted */
3944 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3945 mutex_unlock(&priv
->mutex
);
3948 static void iwl4965_bg_up(struct work_struct
*data
)
3950 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, up
);
3952 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3955 mutex_lock(&priv
->mutex
);
3957 mutex_unlock(&priv
->mutex
);
3960 static void iwl4965_bg_restart(struct work_struct
*data
)
3962 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
3964 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3968 queue_work(priv
->workqueue
, &priv
->up
);
3971 static void iwl4965_bg_rx_replenish(struct work_struct
*data
)
3973 struct iwl_priv
*priv
=
3974 container_of(data
, struct iwl_priv
, rx_replenish
);
3976 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3979 mutex_lock(&priv
->mutex
);
3980 iwl_rx_replenish(priv
);
3981 mutex_unlock(&priv
->mutex
);
3984 #define IWL_DELAY_NEXT_SCAN (HZ*2)
3986 static void iwl4965_post_associate(struct iwl_priv
*priv
)
3988 struct ieee80211_conf
*conf
= NULL
;
3990 DECLARE_MAC_BUF(mac
);
3992 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
3993 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
3997 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
3999 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
4002 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4006 if (!priv
->vif
|| !priv
->is_open
)
4009 iwl4965_scan_cancel_timeout(priv
, 200);
4011 conf
= ieee80211_get_hw_conf(priv
->hw
);
4013 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4014 iwl4965_commit_rxon(priv
);
4016 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
4017 iwl4965_setup_rxon_timing(priv
);
4018 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
4019 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
4021 IWL_WARNING("REPLY_RXON_TIMING failed - "
4022 "Attempting to continue.\n");
4024 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
4026 #ifdef CONFIG_IWL4965_HT
4027 if (priv
->current_ht_config
.is_ht
)
4028 iwl_set_rxon_ht(priv
, &priv
->current_ht_config
);
4029 #endif /* CONFIG_IWL4965_HT*/
4030 iwl_set_rxon_chain(priv
);
4031 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
4033 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
4034 priv
->assoc_id
, priv
->beacon_int
);
4036 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
4037 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
4039 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
4041 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
4042 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
4043 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
4045 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
4047 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
4048 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
4052 iwl4965_commit_rxon(priv
);
4054 switch (priv
->iw_mode
) {
4055 case IEEE80211_IF_TYPE_STA
:
4056 iwl4965_rate_scale_init(priv
->hw
, IWL_AP_ID
);
4059 case IEEE80211_IF_TYPE_IBSS
:
4061 /* clear out the station table */
4062 iwlcore_clear_stations_table(priv
);
4064 iwl_rxon_add_station(priv
, iwl_bcast_addr
, 0);
4065 iwl_rxon_add_station(priv
, priv
->bssid
, 0);
4066 iwl4965_rate_scale_init(priv
->hw
, IWL_STA_ID
);
4067 iwl4965_send_beacon_cmd(priv
);
4072 IWL_ERROR("%s Should not be called in %d mode\n",
4073 __FUNCTION__
, priv
->iw_mode
);
4077 iwl4965_sequence_reset(priv
);
4079 /* Enable Rx differential gain and sensitivity calibrations */
4080 iwl_chain_noise_reset(priv
);
4081 priv
->start_calib
= 1;
4083 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
4084 priv
->assoc_station_added
= 1;
4086 iwl4965_activate_qos(priv
, 0);
4088 iwl_power_update_mode(priv
, 0);
4089 /* we have just associated, don't start scan too early */
4090 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
4094 static void iwl4965_bg_post_associate(struct work_struct
*data
)
4096 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
,
4097 post_associate
.work
);
4099 mutex_lock(&priv
->mutex
);
4100 iwl4965_post_associate(priv
);
4101 mutex_unlock(&priv
->mutex
);
4105 static void iwl4965_bg_abort_scan(struct work_struct
*work
)
4107 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, abort_scan
);
4109 if (!iwl_is_ready(priv
))
4112 mutex_lock(&priv
->mutex
);
4114 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
4115 iwl4965_send_scan_abort(priv
);
4117 mutex_unlock(&priv
->mutex
);
4120 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
4122 static void iwl4965_bg_scan_completed(struct work_struct
*work
)
4124 struct iwl_priv
*priv
=
4125 container_of(work
, struct iwl_priv
, scan_completed
);
4127 IWL_DEBUG(IWL_DL_SCAN
, "SCAN complete scan\n");
4129 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4132 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
4133 iwl4965_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
4135 ieee80211_scan_completed(priv
->hw
);
4137 /* Since setting the TXPOWER may have been deferred while
4138 * performing the scan, fire one off */
4139 mutex_lock(&priv
->mutex
);
4140 iwl4965_hw_reg_send_txpower(priv
);
4141 mutex_unlock(&priv
->mutex
);
4144 /*****************************************************************************
4146 * mac80211 entry point functions
4148 *****************************************************************************/
4150 #define UCODE_READY_TIMEOUT (2 * HZ)
4152 static int iwl4965_mac_start(struct ieee80211_hw
*hw
)
4154 struct iwl_priv
*priv
= hw
->priv
;
4157 IWL_DEBUG_MAC80211("enter\n");
4159 if (pci_enable_device(priv
->pci_dev
)) {
4160 IWL_ERROR("Fail to pci_enable_device\n");
4163 pci_restore_state(priv
->pci_dev
);
4164 pci_enable_msi(priv
->pci_dev
);
4166 ret
= request_irq(priv
->pci_dev
->irq
, iwl4965_isr
, IRQF_SHARED
,
4169 IWL_ERROR("Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
4170 goto out_disable_msi
;
4173 /* we should be verifying the device is ready to be opened */
4174 mutex_lock(&priv
->mutex
);
4176 memset(&priv
->staging_rxon
, 0, sizeof(struct iwl_rxon_cmd
));
4177 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
4178 * ucode filename and max sizes are card-specific. */
4180 if (!priv
->ucode_code
.len
) {
4181 ret
= iwl4965_read_ucode(priv
);
4183 IWL_ERROR("Could not read microcode: %d\n", ret
);
4184 mutex_unlock(&priv
->mutex
);
4185 goto out_release_irq
;
4189 ret
= __iwl4965_up(priv
);
4191 mutex_unlock(&priv
->mutex
);
4194 goto out_release_irq
;
4196 IWL_DEBUG_INFO("Start UP work done.\n");
4198 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
4201 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
4202 * mac80211 will not be run successfully. */
4203 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
4204 test_bit(STATUS_READY
, &priv
->status
),
4205 UCODE_READY_TIMEOUT
);
4207 if (!test_bit(STATUS_READY
, &priv
->status
)) {
4208 IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
4209 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
4211 goto out_release_irq
;
4216 IWL_DEBUG_MAC80211("leave\n");
4220 free_irq(priv
->pci_dev
->irq
, priv
);
4222 pci_disable_msi(priv
->pci_dev
);
4223 pci_disable_device(priv
->pci_dev
);
4225 IWL_DEBUG_MAC80211("leave - failed\n");
4229 static void iwl4965_mac_stop(struct ieee80211_hw
*hw
)
4231 struct iwl_priv
*priv
= hw
->priv
;
4233 IWL_DEBUG_MAC80211("enter\n");
4235 if (!priv
->is_open
) {
4236 IWL_DEBUG_MAC80211("leave - skip\n");
4242 if (iwl_is_ready_rf(priv
)) {
4243 /* stop mac, cancel any scan request and clear
4244 * RXON_FILTER_ASSOC_MSK BIT
4246 mutex_lock(&priv
->mutex
);
4247 iwl4965_scan_cancel_timeout(priv
, 100);
4248 cancel_delayed_work(&priv
->post_associate
);
4249 mutex_unlock(&priv
->mutex
);
4254 flush_workqueue(priv
->workqueue
);
4255 free_irq(priv
->pci_dev
->irq
, priv
);
4256 pci_disable_msi(priv
->pci_dev
);
4257 pci_save_state(priv
->pci_dev
);
4258 pci_disable_device(priv
->pci_dev
);
4260 IWL_DEBUG_MAC80211("leave\n");
4263 static int iwl4965_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
4265 struct iwl_priv
*priv
= hw
->priv
;
4267 IWL_DEBUG_MAC80211("enter\n");
4269 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
4270 IWL_DEBUG_MAC80211("leave - monitor\n");
4274 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
4275 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
4277 if (iwl_tx_skb(priv
, skb
))
4278 dev_kfree_skb_any(skb
);
4280 IWL_DEBUG_MAC80211("leave\n");
4284 static int iwl4965_mac_add_interface(struct ieee80211_hw
*hw
,
4285 struct ieee80211_if_init_conf
*conf
)
4287 struct iwl_priv
*priv
= hw
->priv
;
4288 unsigned long flags
;
4289 DECLARE_MAC_BUF(mac
);
4291 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
4294 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
4298 spin_lock_irqsave(&priv
->lock
, flags
);
4299 priv
->vif
= conf
->vif
;
4301 spin_unlock_irqrestore(&priv
->lock
, flags
);
4303 mutex_lock(&priv
->mutex
);
4305 if (conf
->mac_addr
) {
4306 IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac
, conf
->mac_addr
));
4307 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
4310 if (iwl_is_ready(priv
))
4311 iwl4965_set_mode(priv
, conf
->type
);
4313 mutex_unlock(&priv
->mutex
);
4315 IWL_DEBUG_MAC80211("leave\n");
4320 * iwl4965_mac_config - mac80211 config callback
4322 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
4323 * be set inappropriately and the driver currently sets the hardware up to
4324 * use it whenever needed.
4326 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
4328 struct iwl_priv
*priv
= hw
->priv
;
4329 const struct iwl_channel_info
*ch_info
;
4330 unsigned long flags
;
4333 mutex_lock(&priv
->mutex
);
4334 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
4336 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
4338 if (!iwl_is_ready(priv
)) {
4339 IWL_DEBUG_MAC80211("leave - not ready\n");
4344 if (unlikely(!priv
->cfg
->mod_params
->disable_hw_scan
&&
4345 test_bit(STATUS_SCANNING
, &priv
->status
))) {
4346 IWL_DEBUG_MAC80211("leave - scanning\n");
4347 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
4348 mutex_unlock(&priv
->mutex
);
4352 spin_lock_irqsave(&priv
->lock
, flags
);
4354 ch_info
= iwl_get_channel_info(priv
, conf
->channel
->band
,
4355 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
4356 if (!is_channel_valid(ch_info
)) {
4357 IWL_DEBUG_MAC80211("leave - invalid channel\n");
4358 spin_unlock_irqrestore(&priv
->lock
, flags
);
4363 #ifdef CONFIG_IWL4965_HT
4364 /* if we are switching from ht to 2.4 clear flags
4365 * from any ht related info since 2.4 does not
4367 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != conf
->channel
->hw_value
)
4368 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
4369 && !(conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
)
4372 priv
->staging_rxon
.flags
= 0;
4373 #endif /* CONFIG_IWL4965_HT */
4375 iwl_set_rxon_channel(priv
, conf
->channel
->band
,
4376 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
4378 iwl4965_set_flags_for_phymode(priv
, conf
->channel
->band
);
4380 /* The list of supported rates and rate mask can be different
4381 * for each band; since the band may have changed, reset
4382 * the rate mask to what mac80211 lists */
4383 iwl4965_set_rate(priv
);
4385 spin_unlock_irqrestore(&priv
->lock
, flags
);
4387 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
4388 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
4389 iwl4965_hw_channel_switch(priv
, conf
->channel
);
4394 if (priv
->cfg
->ops
->lib
->radio_kill_sw
)
4395 priv
->cfg
->ops
->lib
->radio_kill_sw(priv
, !conf
->radio_enabled
);
4397 if (!conf
->radio_enabled
) {
4398 IWL_DEBUG_MAC80211("leave - radio disabled\n");
4402 if (iwl_is_rfkill(priv
)) {
4403 IWL_DEBUG_MAC80211("leave - RF kill\n");
4408 iwl4965_set_rate(priv
);
4410 if (memcmp(&priv
->active_rxon
,
4411 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
4412 iwl4965_commit_rxon(priv
);
4414 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
4416 IWL_DEBUG_MAC80211("leave\n");
4419 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
4420 mutex_unlock(&priv
->mutex
);
4424 static void iwl4965_config_ap(struct iwl_priv
*priv
)
4428 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4431 /* The following should be done only at AP bring up */
4432 if ((priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) == 0) {
4434 /* RXON - unassoc (to set timing command) */
4435 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4436 iwl4965_commit_rxon(priv
);
4439 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
4440 iwl4965_setup_rxon_timing(priv
);
4441 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
4442 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
4444 IWL_WARNING("REPLY_RXON_TIMING failed - "
4445 "Attempting to continue.\n");
4447 iwl_set_rxon_chain(priv
);
4449 /* FIXME: what should be the assoc_id for AP? */
4450 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
4451 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
4452 priv
->staging_rxon
.flags
|=
4453 RXON_FLG_SHORT_PREAMBLE_MSK
;
4455 priv
->staging_rxon
.flags
&=
4456 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
4458 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
4459 if (priv
->assoc_capability
&
4460 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
4461 priv
->staging_rxon
.flags
|=
4462 RXON_FLG_SHORT_SLOT_MSK
;
4464 priv
->staging_rxon
.flags
&=
4465 ~RXON_FLG_SHORT_SLOT_MSK
;
4467 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
4468 priv
->staging_rxon
.flags
&=
4469 ~RXON_FLG_SHORT_SLOT_MSK
;
4471 /* restore RXON assoc */
4472 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
4473 iwl4965_commit_rxon(priv
);
4474 iwl4965_activate_qos(priv
, 1);
4475 iwl_rxon_add_station(priv
, iwl_bcast_addr
, 0);
4477 iwl4965_send_beacon_cmd(priv
);
4479 /* FIXME - we need to add code here to detect a totally new
4480 * configuration, reset the AP, unassoc, rxon timing, assoc,
4481 * clear sta table, add BCAST sta... */
4484 static int iwl4965_mac_config_interface(struct ieee80211_hw
*hw
,
4485 struct ieee80211_vif
*vif
,
4486 struct ieee80211_if_conf
*conf
)
4488 struct iwl_priv
*priv
= hw
->priv
;
4489 DECLARE_MAC_BUF(mac
);
4490 unsigned long flags
;
4496 if (priv
->vif
!= vif
) {
4497 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
4501 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
4502 (!conf
->beacon
|| !conf
->ssid_len
)) {
4504 ("Leaving in AP mode because HostAPD is not ready.\n");
4508 if (!iwl_is_alive(priv
))
4511 mutex_lock(&priv
->mutex
);
4514 IWL_DEBUG_MAC80211("bssid: %s\n",
4515 print_mac(mac
, conf
->bssid
));
4518 * very dubious code was here; the probe filtering flag is never set:
4520 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
4521 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
4524 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
4526 conf
->bssid
= priv
->mac_addr
;
4527 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
4528 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
4529 print_mac(mac
, conf
->bssid
));
4531 if (priv
->ibss_beacon
)
4532 dev_kfree_skb(priv
->ibss_beacon
);
4534 priv
->ibss_beacon
= conf
->beacon
;
4537 if (iwl_is_rfkill(priv
))
4540 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
4541 !is_multicast_ether_addr(conf
->bssid
)) {
4542 /* If there is currently a HW scan going on in the background
4543 * then we need to cancel it else the RXON below will fail. */
4544 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
4545 IWL_WARNING("Aborted scan still in progress "
4547 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
4548 mutex_unlock(&priv
->mutex
);
4551 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
4553 /* TODO: Audit driver for usage of these members and see
4554 * if mac80211 deprecates them (priv->bssid looks like it
4555 * shouldn't be there, but I haven't scanned the IBSS code
4556 * to verify) - jpk */
4557 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
4559 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
4560 iwl4965_config_ap(priv
);
4562 rc
= iwl4965_commit_rxon(priv
);
4563 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
4564 iwl_rxon_add_station(
4565 priv
, priv
->active_rxon
.bssid_addr
, 1);
4569 iwl4965_scan_cancel_timeout(priv
, 100);
4570 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4571 iwl4965_commit_rxon(priv
);
4575 spin_lock_irqsave(&priv
->lock
, flags
);
4576 if (!conf
->ssid_len
)
4577 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
4579 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
4581 priv
->essid_len
= conf
->ssid_len
;
4582 spin_unlock_irqrestore(&priv
->lock
, flags
);
4584 IWL_DEBUG_MAC80211("leave\n");
4585 mutex_unlock(&priv
->mutex
);
4590 static void iwl4965_configure_filter(struct ieee80211_hw
*hw
,
4591 unsigned int changed_flags
,
4592 unsigned int *total_flags
,
4593 int mc_count
, struct dev_addr_list
*mc_list
)
4597 * see also iwl4965_connection_init_rx_config
4599 struct iwl_priv
*priv
= hw
->priv
;
4601 if (changed_flags
& (FIF_PROMISC_IN_BSS
| FIF_OTHER_BSS
)) {
4602 if (*total_flags
& (FIF_PROMISC_IN_BSS
| FIF_OTHER_BSS
)) {
4603 IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n",
4604 IEEE80211_IF_TYPE_MNTR
,
4605 changed_flags
, *total_flags
);
4606 /* queue work 'cuz mac80211 is holding a lock which
4607 * prevents us from issuing (synchronous) f/w cmds */
4608 queue_work(priv
->workqueue
, &priv
->set_monitor
);
4609 new_flags
&= FIF_PROMISC_IN_BSS
|
4614 *total_flags
= new_flags
;
4617 static void iwl4965_mac_remove_interface(struct ieee80211_hw
*hw
,
4618 struct ieee80211_if_init_conf
*conf
)
4620 struct iwl_priv
*priv
= hw
->priv
;
4622 IWL_DEBUG_MAC80211("enter\n");
4624 mutex_lock(&priv
->mutex
);
4626 if (iwl_is_ready_rf(priv
)) {
4627 iwl4965_scan_cancel_timeout(priv
, 100);
4628 cancel_delayed_work(&priv
->post_associate
);
4629 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4630 iwl4965_commit_rxon(priv
);
4632 if (priv
->vif
== conf
->vif
) {
4634 memset(priv
->bssid
, 0, ETH_ALEN
);
4635 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
4636 priv
->essid_len
= 0;
4638 mutex_unlock(&priv
->mutex
);
4640 IWL_DEBUG_MAC80211("leave\n");
4644 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
4645 static void iwl4965_bss_info_changed(struct ieee80211_hw
*hw
,
4646 struct ieee80211_vif
*vif
,
4647 struct ieee80211_bss_conf
*bss_conf
,
4650 struct iwl_priv
*priv
= hw
->priv
;
4652 IWL_DEBUG_MAC80211("changes = 0x%X\n", changes
);
4654 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
4655 IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
4656 bss_conf
->use_short_preamble
);
4657 if (bss_conf
->use_short_preamble
)
4658 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
4660 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
4663 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
4664 IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf
->use_cts_prot
);
4665 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
4666 priv
->staging_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
4668 priv
->staging_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
4671 if (changes
& BSS_CHANGED_HT
) {
4672 IWL_DEBUG_MAC80211("HT %d\n", bss_conf
->assoc_ht
);
4673 iwl4965_ht_conf(priv
, bss_conf
);
4674 iwl_set_rxon_chain(priv
);
4677 if (changes
& BSS_CHANGED_ASSOC
) {
4678 IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf
->assoc
);
4679 /* This should never happen as this function should
4680 * never be called from interrupt context. */
4681 if (WARN_ON_ONCE(in_interrupt()))
4683 if (bss_conf
->assoc
) {
4684 priv
->assoc_id
= bss_conf
->aid
;
4685 priv
->beacon_int
= bss_conf
->beacon_int
;
4686 priv
->timestamp
= bss_conf
->timestamp
;
4687 priv
->assoc_capability
= bss_conf
->assoc_capability
;
4688 priv
->next_scan_jiffies
= jiffies
+
4689 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC
;
4690 mutex_lock(&priv
->mutex
);
4691 iwl4965_post_associate(priv
);
4692 mutex_unlock(&priv
->mutex
);
4695 IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf
->assoc
);
4697 } else if (changes
&& iwl_is_associated(priv
) && priv
->assoc_id
) {
4698 IWL_DEBUG_MAC80211("Associated Changes %d\n", changes
);
4699 iwl_send_rxon_assoc(priv
);
4704 static int iwl4965_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
4707 unsigned long flags
;
4708 struct iwl_priv
*priv
= hw
->priv
;
4710 IWL_DEBUG_MAC80211("enter\n");
4712 mutex_lock(&priv
->mutex
);
4713 spin_lock_irqsave(&priv
->lock
, flags
);
4715 if (!iwl_is_ready_rf(priv
)) {
4717 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
4721 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
4723 IWL_ERROR("ERROR: APs don't scan\n");
4727 /* we don't schedule scan within next_scan_jiffies period */
4728 if (priv
->next_scan_jiffies
&&
4729 time_after(priv
->next_scan_jiffies
, jiffies
)) {
4733 /* if we just finished scan ask for delay */
4734 if (priv
->last_scan_jiffies
&& time_after(priv
->last_scan_jiffies
+
4735 IWL_DELAY_NEXT_SCAN
, jiffies
)) {
4740 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
4741 iwl4965_escape_essid(ssid
, len
), (int)len
);
4743 priv
->one_direct_scan
= 1;
4744 priv
->direct_ssid_len
= (u8
)
4745 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
4746 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
4748 priv
->one_direct_scan
= 0;
4750 rc
= iwl4965_scan_initiate(priv
);
4752 IWL_DEBUG_MAC80211("leave\n");
4755 spin_unlock_irqrestore(&priv
->lock
, flags
);
4756 mutex_unlock(&priv
->mutex
);
4761 static void iwl4965_mac_update_tkip_key(struct ieee80211_hw
*hw
,
4762 struct ieee80211_key_conf
*keyconf
, const u8
*addr
,
4763 u32 iv32
, u16
*phase1key
)
4765 struct iwl_priv
*priv
= hw
->priv
;
4766 u8 sta_id
= IWL_INVALID_STATION
;
4767 unsigned long flags
;
4768 __le16 key_flags
= 0;
4770 DECLARE_MAC_BUF(mac
);
4772 IWL_DEBUG_MAC80211("enter\n");
4774 sta_id
= iwl_find_station(priv
, addr
);
4775 if (sta_id
== IWL_INVALID_STATION
) {
4776 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
4777 print_mac(mac
, addr
));
4781 iwl4965_scan_cancel_timeout(priv
, 100);
4783 key_flags
|= (STA_KEY_FLG_TKIP
| STA_KEY_FLG_MAP_KEY_MSK
);
4784 key_flags
|= cpu_to_le16(keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
4785 key_flags
&= ~STA_KEY_FLG_INVALID
;
4787 if (sta_id
== priv
->hw_params
.bcast_sta_id
)
4788 key_flags
|= STA_KEY_MULTICAST_MSK
;
4790 spin_lock_irqsave(&priv
->sta_lock
, flags
);
4792 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
4793 priv
->stations
[sta_id
].sta
.key
.tkip_rx_tsc_byte2
= (u8
) iv32
;
4795 for (i
= 0; i
< 5; i
++)
4796 priv
->stations
[sta_id
].sta
.key
.tkip_rx_ttak
[i
] =
4797 cpu_to_le16(phase1key
[i
]);
4799 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
4800 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
4802 iwl_send_add_sta(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
4804 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
4806 IWL_DEBUG_MAC80211("leave\n");
4809 static int iwl4965_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
4810 const u8
*local_addr
, const u8
*addr
,
4811 struct ieee80211_key_conf
*key
)
4813 struct iwl_priv
*priv
= hw
->priv
;
4814 DECLARE_MAC_BUF(mac
);
4816 u8 sta_id
= IWL_INVALID_STATION
;
4817 u8 is_default_wep_key
= 0;
4819 IWL_DEBUG_MAC80211("enter\n");
4821 if (priv
->hw_params
.sw_crypto
) {
4822 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
4826 if (is_zero_ether_addr(addr
))
4827 /* only support pairwise keys */
4830 sta_id
= iwl_find_station(priv
, addr
);
4831 if (sta_id
== IWL_INVALID_STATION
) {
4832 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
4833 print_mac(mac
, addr
));
4838 mutex_lock(&priv
->mutex
);
4839 iwl4965_scan_cancel_timeout(priv
, 100);
4840 mutex_unlock(&priv
->mutex
);
4842 /* If we are getting WEP group key and we didn't receive any key mapping
4843 * so far, we are in legacy wep mode (group key only), otherwise we are
4845 * In legacy wep mode, we use another host command to the uCode */
4846 if (key
->alg
== ALG_WEP
&& sta_id
== priv
->hw_params
.bcast_sta_id
&&
4847 priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
4849 is_default_wep_key
= !priv
->key_mapping_key
;
4851 is_default_wep_key
=
4852 (key
->hw_key_idx
== HW_KEY_DEFAULT
);
4857 if (is_default_wep_key
)
4858 ret
= iwl_set_default_wep_key(priv
, key
);
4860 ret
= iwl_set_dynamic_key(priv
, key
, sta_id
);
4862 IWL_DEBUG_MAC80211("enable hwcrypto key\n");
4865 if (is_default_wep_key
)
4866 ret
= iwl_remove_default_wep_key(priv
, key
);
4868 ret
= iwl_remove_dynamic_key(priv
, key
, sta_id
);
4870 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
4876 IWL_DEBUG_MAC80211("leave\n");
4881 static int iwl4965_mac_conf_tx(struct ieee80211_hw
*hw
, u16 queue
,
4882 const struct ieee80211_tx_queue_params
*params
)
4884 struct iwl_priv
*priv
= hw
->priv
;
4885 unsigned long flags
;
4888 IWL_DEBUG_MAC80211("enter\n");
4890 if (!iwl_is_ready_rf(priv
)) {
4891 IWL_DEBUG_MAC80211("leave - RF not ready\n");
4895 if (queue
>= AC_NUM
) {
4896 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
4900 if (!priv
->qos_data
.qos_enable
) {
4901 priv
->qos_data
.qos_active
= 0;
4902 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
4905 q
= AC_NUM
- 1 - queue
;
4907 spin_lock_irqsave(&priv
->lock
, flags
);
4909 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
4910 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
4911 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
4912 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
4913 cpu_to_le16((params
->txop
* 32));
4915 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
4916 priv
->qos_data
.qos_active
= 1;
4918 spin_unlock_irqrestore(&priv
->lock
, flags
);
4920 mutex_lock(&priv
->mutex
);
4921 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
4922 iwl4965_activate_qos(priv
, 1);
4923 else if (priv
->assoc_id
&& iwl_is_associated(priv
))
4924 iwl4965_activate_qos(priv
, 0);
4926 mutex_unlock(&priv
->mutex
);
4928 IWL_DEBUG_MAC80211("leave\n");
4932 static int iwl4965_mac_get_tx_stats(struct ieee80211_hw
*hw
,
4933 struct ieee80211_tx_queue_stats
*stats
)
4935 struct iwl_priv
*priv
= hw
->priv
;
4937 struct iwl_tx_queue
*txq
;
4938 struct iwl_queue
*q
;
4939 unsigned long flags
;
4941 IWL_DEBUG_MAC80211("enter\n");
4943 if (!iwl_is_ready_rf(priv
)) {
4944 IWL_DEBUG_MAC80211("leave - RF not ready\n");
4948 spin_lock_irqsave(&priv
->lock
, flags
);
4950 for (i
= 0; i
< AC_NUM
; i
++) {
4951 txq
= &priv
->txq
[i
];
4953 avail
= iwl_queue_space(q
);
4955 stats
[i
].len
= q
->n_window
- avail
;
4956 stats
[i
].limit
= q
->n_window
- q
->high_mark
;
4957 stats
[i
].count
= q
->n_window
;
4960 spin_unlock_irqrestore(&priv
->lock
, flags
);
4962 IWL_DEBUG_MAC80211("leave\n");
4967 static int iwl4965_mac_get_stats(struct ieee80211_hw
*hw
,
4968 struct ieee80211_low_level_stats
*stats
)
4970 struct iwl_priv
*priv
= hw
->priv
;
4973 IWL_DEBUG_MAC80211("enter\n");
4974 IWL_DEBUG_MAC80211("leave\n");
4979 static u64
iwl4965_mac_get_tsf(struct ieee80211_hw
*hw
)
4981 struct iwl_priv
*priv
;
4984 IWL_DEBUG_MAC80211("enter\n");
4985 IWL_DEBUG_MAC80211("leave\n");
4990 static void iwl4965_mac_reset_tsf(struct ieee80211_hw
*hw
)
4992 struct iwl_priv
*priv
= hw
->priv
;
4993 unsigned long flags
;
4995 mutex_lock(&priv
->mutex
);
4996 IWL_DEBUG_MAC80211("enter\n");
4998 priv
->lq_mngr
.lq_ready
= 0;
4999 #ifdef CONFIG_IWL4965_HT
5000 spin_lock_irqsave(&priv
->lock
, flags
);
5001 memset(&priv
->current_ht_config
, 0, sizeof(struct iwl_ht_info
));
5002 spin_unlock_irqrestore(&priv
->lock
, flags
);
5003 #endif /* CONFIG_IWL4965_HT */
5005 iwl_reset_qos(priv
);
5007 cancel_delayed_work(&priv
->post_associate
);
5009 spin_lock_irqsave(&priv
->lock
, flags
);
5011 priv
->assoc_capability
= 0;
5012 priv
->assoc_station_added
= 0;
5014 /* new association get rid of ibss beacon skb */
5015 if (priv
->ibss_beacon
)
5016 dev_kfree_skb(priv
->ibss_beacon
);
5018 priv
->ibss_beacon
= NULL
;
5020 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
5021 priv
->timestamp
= 0;
5022 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
5023 priv
->beacon_int
= 0;
5025 spin_unlock_irqrestore(&priv
->lock
, flags
);
5027 if (!iwl_is_ready_rf(priv
)) {
5028 IWL_DEBUG_MAC80211("leave - not ready\n");
5029 mutex_unlock(&priv
->mutex
);
5033 /* we are restarting association process
5034 * clear RXON_FILTER_ASSOC_MSK bit
5036 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
5037 iwl4965_scan_cancel_timeout(priv
, 100);
5038 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5039 iwl4965_commit_rxon(priv
);
5042 iwl_power_update_mode(priv
, 0);
5044 /* Per mac80211.h: This is only used in IBSS mode... */
5045 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
5047 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
5048 mutex_unlock(&priv
->mutex
);
5052 iwl4965_set_rate(priv
);
5054 mutex_unlock(&priv
->mutex
);
5056 IWL_DEBUG_MAC80211("leave\n");
5059 static int iwl4965_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
5061 struct iwl_priv
*priv
= hw
->priv
;
5062 unsigned long flags
;
5064 mutex_lock(&priv
->mutex
);
5065 IWL_DEBUG_MAC80211("enter\n");
5067 if (!iwl_is_ready_rf(priv
)) {
5068 IWL_DEBUG_MAC80211("leave - RF not ready\n");
5069 mutex_unlock(&priv
->mutex
);
5073 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
5074 IWL_DEBUG_MAC80211("leave - not IBSS\n");
5075 mutex_unlock(&priv
->mutex
);
5079 spin_lock_irqsave(&priv
->lock
, flags
);
5081 if (priv
->ibss_beacon
)
5082 dev_kfree_skb(priv
->ibss_beacon
);
5084 priv
->ibss_beacon
= skb
;
5088 IWL_DEBUG_MAC80211("leave\n");
5089 spin_unlock_irqrestore(&priv
->lock
, flags
);
5091 iwl_reset_qos(priv
);
5093 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
5095 mutex_unlock(&priv
->mutex
);
5100 /*****************************************************************************
5104 *****************************************************************************/
5106 #ifdef CONFIG_IWLWIFI_DEBUG
5109 * The following adds a new attribute to the sysfs representation
5110 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
5111 * used for controlling the debug level.
5113 * See the level definitions in iwl for details.
5116 static ssize_t
show_debug_level(struct device
*d
,
5117 struct device_attribute
*attr
, char *buf
)
5119 struct iwl_priv
*priv
= d
->driver_data
;
5121 return sprintf(buf
, "0x%08X\n", priv
->debug_level
);
5123 static ssize_t
store_debug_level(struct device
*d
,
5124 struct device_attribute
*attr
,
5125 const char *buf
, size_t count
)
5127 struct iwl_priv
*priv
= d
->driver_data
;
5128 char *p
= (char *)buf
;
5131 val
= simple_strtoul(p
, &p
, 0);
5133 printk(KERN_INFO DRV_NAME
5134 ": %s is not in hex or decimal form.\n", buf
);
5136 priv
->debug_level
= val
;
5138 return strnlen(buf
, count
);
5141 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
5142 show_debug_level
, store_debug_level
);
5145 #endif /* CONFIG_IWLWIFI_DEBUG */
5148 static ssize_t
show_version(struct device
*d
,
5149 struct device_attribute
*attr
, char *buf
)
5151 struct iwl_priv
*priv
= d
->driver_data
;
5152 struct iwl4965_alive_resp
*palive
= &priv
->card_alive
;
5154 if (palive
->is_valid
)
5155 return sprintf(buf
, "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n"
5156 "fw type: 0x%01X 0x%01X\n",
5157 palive
->ucode_major
, palive
->ucode_minor
,
5158 palive
->sw_rev
[0], palive
->sw_rev
[1],
5159 palive
->ver_type
, palive
->ver_subtype
);
5162 return sprintf(buf
, "fw not loaded\n");
5165 static DEVICE_ATTR(version
, S_IWUSR
| S_IRUGO
, show_version
, NULL
);
5167 static ssize_t
show_temperature(struct device
*d
,
5168 struct device_attribute
*attr
, char *buf
)
5170 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5172 if (!iwl_is_alive(priv
))
5175 return sprintf(buf
, "%d\n", iwl4965_hw_get_temperature(priv
));
5178 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
5180 static ssize_t
show_rs_window(struct device
*d
,
5181 struct device_attribute
*attr
,
5184 struct iwl_priv
*priv
= d
->driver_data
;
5185 return iwl4965_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
5187 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
5189 static ssize_t
show_tx_power(struct device
*d
,
5190 struct device_attribute
*attr
, char *buf
)
5192 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5193 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
5196 static ssize_t
store_tx_power(struct device
*d
,
5197 struct device_attribute
*attr
,
5198 const char *buf
, size_t count
)
5200 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5201 char *p
= (char *)buf
;
5204 val
= simple_strtoul(p
, &p
, 10);
5206 printk(KERN_INFO DRV_NAME
5207 ": %s is not in decimal form.\n", buf
);
5209 iwl4965_hw_reg_set_txpower(priv
, val
);
5214 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
5216 static ssize_t
show_flags(struct device
*d
,
5217 struct device_attribute
*attr
, char *buf
)
5219 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5221 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
5224 static ssize_t
store_flags(struct device
*d
,
5225 struct device_attribute
*attr
,
5226 const char *buf
, size_t count
)
5228 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5229 u32 flags
= simple_strtoul(buf
, NULL
, 0);
5231 mutex_lock(&priv
->mutex
);
5232 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
5233 /* Cancel any currently running scans... */
5234 if (iwl4965_scan_cancel_timeout(priv
, 100))
5235 IWL_WARNING("Could not cancel scan.\n");
5237 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
5239 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
5240 iwl4965_commit_rxon(priv
);
5243 mutex_unlock(&priv
->mutex
);
5248 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
5250 static ssize_t
show_filter_flags(struct device
*d
,
5251 struct device_attribute
*attr
, char *buf
)
5253 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5255 return sprintf(buf
, "0x%04X\n",
5256 le32_to_cpu(priv
->active_rxon
.filter_flags
));
5259 static ssize_t
store_filter_flags(struct device
*d
,
5260 struct device_attribute
*attr
,
5261 const char *buf
, size_t count
)
5263 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5264 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
5266 mutex_lock(&priv
->mutex
);
5267 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
5268 /* Cancel any currently running scans... */
5269 if (iwl4965_scan_cancel_timeout(priv
, 100))
5270 IWL_WARNING("Could not cancel scan.\n");
5272 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
5273 "0x%04X\n", filter_flags
);
5274 priv
->staging_rxon
.filter_flags
=
5275 cpu_to_le32(filter_flags
);
5276 iwl4965_commit_rxon(priv
);
5279 mutex_unlock(&priv
->mutex
);
5284 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
5285 store_filter_flags
);
5287 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
5289 static ssize_t
show_measurement(struct device
*d
,
5290 struct device_attribute
*attr
, char *buf
)
5292 struct iwl_priv
*priv
= dev_get_drvdata(d
);
5293 struct iwl4965_spectrum_notification measure_report
;
5294 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
5295 u8
*data
= (u8
*) & measure_report
;
5296 unsigned long flags
;
5298 spin_lock_irqsave(&priv
->lock
, flags
);
5299 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
5300 spin_unlock_irqrestore(&priv
->lock
, flags
);
5303 memcpy(&measure_report
, &priv
->measure_report
, size
);
5304 priv
->measurement_status
= 0;
5305 spin_unlock_irqrestore(&priv
->lock
, flags
);
5307 while (size
&& (PAGE_SIZE
- len
)) {
5308 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
5309 PAGE_SIZE
- len
, 1);
5311 if (PAGE_SIZE
- len
)
5315 size
-= min(size
, 16U);
5321 static ssize_t
store_measurement(struct device
*d
,
5322 struct device_attribute
*attr
,
5323 const char *buf
, size_t count
)
5325 struct iwl_priv
*priv
= dev_get_drvdata(d
);
5326 struct ieee80211_measurement_params params
= {
5327 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
5328 .start_time
= cpu_to_le64(priv
->last_tsf
),
5329 .duration
= cpu_to_le16(1),
5331 u8 type
= IWL_MEASURE_BASIC
;
5337 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
5338 channel
= simple_strtoul(p
, NULL
, 0);
5340 params
.channel
= channel
;
5343 while (*p
&& *p
!= ' ')
5346 type
= simple_strtoul(p
+ 1, NULL
, 0);
5349 IWL_DEBUG_INFO("Invoking measurement of type %d on "
5350 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
5351 iwl4965_get_measurement(priv
, ¶ms
, type
);
5356 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
5357 show_measurement
, store_measurement
);
5358 #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
5360 static ssize_t
store_retry_rate(struct device
*d
,
5361 struct device_attribute
*attr
,
5362 const char *buf
, size_t count
)
5364 struct iwl_priv
*priv
= dev_get_drvdata(d
);
5366 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
5367 if (priv
->retry_rate
<= 0)
5368 priv
->retry_rate
= 1;
5373 static ssize_t
show_retry_rate(struct device
*d
,
5374 struct device_attribute
*attr
, char *buf
)
5376 struct iwl_priv
*priv
= dev_get_drvdata(d
);
5377 return sprintf(buf
, "%d", priv
->retry_rate
);
5380 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
5383 static ssize_t
store_power_level(struct device
*d
,
5384 struct device_attribute
*attr
,
5385 const char *buf
, size_t count
)
5387 struct iwl_priv
*priv
= dev_get_drvdata(d
);
5391 mode
= simple_strtoul(buf
, NULL
, 0);
5392 mutex_lock(&priv
->mutex
);
5394 if (!iwl_is_ready(priv
)) {
5399 rc
= iwl_power_set_user_mode(priv
, mode
);
5401 IWL_DEBUG_MAC80211("failed setting power mode.\n");
5407 mutex_unlock(&priv
->mutex
);
5411 #define MAX_WX_STRING 80
5413 /* Values are in microsecond */
5414 static const s32 timeout_duration
[] = {
5421 static const s32 period_duration
[] = {
5429 static ssize_t
show_power_level(struct device
*d
,
5430 struct device_attribute
*attr
, char *buf
)
5432 struct iwl_priv
*priv
= dev_get_drvdata(d
);
5433 int level
= priv
->power_data
.power_mode
;
5436 p
+= sprintf(p
, "%d ", level
);
5438 case IWL_POWER_MODE_CAM
:
5440 p
+= sprintf(p
, "(AC)");
5442 case IWL_POWER_BATTERY
:
5443 p
+= sprintf(p
, "(BATTERY)");
5447 "(Timeout %dms, Period %dms)",
5448 timeout_duration
[level
- 1] / 1000,
5449 period_duration
[level
- 1] / 1000);
5452 if (!(priv->power_mode & IWL_POWER_ENABLED))
5453 p += sprintf(p, " OFF\n");
5455 p += sprintf(p, " \n");
5457 p
+= sprintf(p
, " \n");
5458 return (p
- buf
+ 1);
5461 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
5464 static ssize_t
show_channels(struct device
*d
,
5465 struct device_attribute
*attr
, char *buf
)
5467 /* all this shit doesn't belong into sysfs anyway */
5471 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
5473 static ssize_t
show_statistics(struct device
*d
,
5474 struct device_attribute
*attr
, char *buf
)
5476 struct iwl_priv
*priv
= dev_get_drvdata(d
);
5477 u32 size
= sizeof(struct iwl4965_notif_statistics
);
5478 u32 len
= 0, ofs
= 0;
5479 u8
*data
= (u8
*) & priv
->statistics
;
5482 if (!iwl_is_alive(priv
))
5485 mutex_lock(&priv
->mutex
);
5486 rc
= iwl_send_statistics_request(priv
, 0);
5487 mutex_unlock(&priv
->mutex
);
5491 "Error sending statistics request: 0x%08X\n", rc
);
5495 while (size
&& (PAGE_SIZE
- len
)) {
5496 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
5497 PAGE_SIZE
- len
, 1);
5499 if (PAGE_SIZE
- len
)
5503 size
-= min(size
, 16U);
5509 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
5511 static ssize_t
show_status(struct device
*d
,
5512 struct device_attribute
*attr
, char *buf
)
5514 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5515 if (!iwl_is_alive(priv
))
5517 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
5520 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
5522 static ssize_t
dump_error_log(struct device
*d
,
5523 struct device_attribute
*attr
,
5524 const char *buf
, size_t count
)
5526 char *p
= (char *)buf
;
5529 iwl4965_dump_nic_error_log((struct iwl_priv
*)d
->driver_data
);
5531 return strnlen(buf
, count
);
5534 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
5536 /*****************************************************************************
5538 * driver setup and teardown
5540 *****************************************************************************/
5542 static void iwl4965_setup_deferred_work(struct iwl_priv
*priv
)
5544 priv
->workqueue
= create_workqueue(DRV_NAME
);
5546 init_waitqueue_head(&priv
->wait_command_queue
);
5548 INIT_WORK(&priv
->up
, iwl4965_bg_up
);
5549 INIT_WORK(&priv
->restart
, iwl4965_bg_restart
);
5550 INIT_WORK(&priv
->rx_replenish
, iwl4965_bg_rx_replenish
);
5551 INIT_WORK(&priv
->scan_completed
, iwl4965_bg_scan_completed
);
5552 INIT_WORK(&priv
->request_scan
, iwl4965_bg_request_scan
);
5553 INIT_WORK(&priv
->abort_scan
, iwl4965_bg_abort_scan
);
5554 INIT_WORK(&priv
->rf_kill
, iwl4965_bg_rf_kill
);
5555 INIT_WORK(&priv
->beacon_update
, iwl4965_bg_beacon_update
);
5556 INIT_WORK(&priv
->set_monitor
, iwl4965_bg_set_monitor
);
5557 INIT_DELAYED_WORK(&priv
->post_associate
, iwl4965_bg_post_associate
);
5558 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl4965_bg_init_alive_start
);
5559 INIT_DELAYED_WORK(&priv
->alive_start
, iwl4965_bg_alive_start
);
5560 INIT_DELAYED_WORK(&priv
->scan_check
, iwl4965_bg_scan_check
);
5562 iwl4965_hw_setup_deferred_work(priv
);
5564 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
5565 iwl4965_irq_tasklet
, (unsigned long)priv
);
5568 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
)
5570 iwl4965_hw_cancel_deferred_work(priv
);
5572 cancel_delayed_work_sync(&priv
->init_alive_start
);
5573 cancel_delayed_work(&priv
->scan_check
);
5574 cancel_delayed_work(&priv
->alive_start
);
5575 cancel_delayed_work(&priv
->post_associate
);
5576 cancel_work_sync(&priv
->beacon_update
);
5579 static struct attribute
*iwl4965_sysfs_entries
[] = {
5580 &dev_attr_channels
.attr
,
5581 &dev_attr_dump_errors
.attr
,
5582 &dev_attr_flags
.attr
,
5583 &dev_attr_filter_flags
.attr
,
5584 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
5585 &dev_attr_measurement
.attr
,
5587 &dev_attr_power_level
.attr
,
5588 &dev_attr_retry_rate
.attr
,
5589 &dev_attr_rs_window
.attr
,
5590 &dev_attr_statistics
.attr
,
5591 &dev_attr_status
.attr
,
5592 &dev_attr_temperature
.attr
,
5593 &dev_attr_tx_power
.attr
,
5594 #ifdef CONFIG_IWLWIFI_DEBUG
5595 &dev_attr_debug_level
.attr
,
5597 &dev_attr_version
.attr
,
5602 static struct attribute_group iwl4965_attribute_group
= {
5603 .name
= NULL
, /* put in device directory */
5604 .attrs
= iwl4965_sysfs_entries
,
5607 static struct ieee80211_ops iwl4965_hw_ops
= {
5608 .tx
= iwl4965_mac_tx
,
5609 .start
= iwl4965_mac_start
,
5610 .stop
= iwl4965_mac_stop
,
5611 .add_interface
= iwl4965_mac_add_interface
,
5612 .remove_interface
= iwl4965_mac_remove_interface
,
5613 .config
= iwl4965_mac_config
,
5614 .config_interface
= iwl4965_mac_config_interface
,
5615 .configure_filter
= iwl4965_configure_filter
,
5616 .set_key
= iwl4965_mac_set_key
,
5617 .update_tkip_key
= iwl4965_mac_update_tkip_key
,
5618 .get_stats
= iwl4965_mac_get_stats
,
5619 .get_tx_stats
= iwl4965_mac_get_tx_stats
,
5620 .conf_tx
= iwl4965_mac_conf_tx
,
5621 .get_tsf
= iwl4965_mac_get_tsf
,
5622 .reset_tsf
= iwl4965_mac_reset_tsf
,
5623 .beacon_update
= iwl4965_mac_beacon_update
,
5624 .bss_info_changed
= iwl4965_bss_info_changed
,
5625 #ifdef CONFIG_IWL4965_HT
5626 .ampdu_action
= iwl4965_mac_ampdu_action
,
5627 #endif /* CONFIG_IWL4965_HT */
5628 .hw_scan
= iwl4965_mac_hw_scan
5631 static int iwl4965_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
5634 struct iwl_priv
*priv
;
5635 struct ieee80211_hw
*hw
;
5636 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
5637 unsigned long flags
;
5638 DECLARE_MAC_BUF(mac
);
5640 /************************
5641 * 1. Allocating HW data
5642 ************************/
5644 /* Disabling hardware scan means that mac80211 will perform scans
5645 * "the hard way", rather than using device's scan. */
5646 if (cfg
->mod_params
->disable_hw_scan
) {
5647 if (cfg
->mod_params
->debug
& IWL_DL_INFO
)
5648 dev_printk(KERN_DEBUG
, &(pdev
->dev
),
5649 "Disabling hw_scan\n");
5650 iwl4965_hw_ops
.hw_scan
= NULL
;
5653 hw
= iwl_alloc_all(cfg
, &iwl4965_hw_ops
);
5659 /* At this point both hw and priv are allocated. */
5661 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
5663 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
5665 priv
->pci_dev
= pdev
;
5667 #ifdef CONFIG_IWLWIFI_DEBUG
5668 priv
->debug_level
= priv
->cfg
->mod_params
->debug
;
5669 atomic_set(&priv
->restrict_refcnt
, 0);
5672 /**************************
5673 * 2. Initializing PCI bus
5674 **************************/
5675 if (pci_enable_device(pdev
)) {
5677 goto out_ieee80211_free_hw
;
5680 pci_set_master(pdev
);
5682 err
= pci_set_dma_mask(pdev
, DMA_64BIT_MASK
);
5684 err
= pci_set_consistent_dma_mask(pdev
, DMA_64BIT_MASK
);
5686 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
5688 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
5689 /* both attempts failed: */
5691 printk(KERN_WARNING
"%s: No suitable DMA available.\n",
5693 goto out_pci_disable_device
;
5697 err
= pci_request_regions(pdev
, DRV_NAME
);
5699 goto out_pci_disable_device
;
5701 pci_set_drvdata(pdev
, priv
);
5703 /* We disable the RETRY_TIMEOUT register (0x41) to keep
5704 * PCI Tx retries from interfering with C3 CPU state */
5705 pci_write_config_byte(pdev
, 0x41, 0x00);
5707 /***********************
5708 * 3. Read REV register
5709 ***********************/
5710 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
5711 if (!priv
->hw_base
) {
5713 goto out_pci_release_regions
;
5716 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
5717 (unsigned long long) pci_resource_len(pdev
, 0));
5718 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
5720 iwl_hw_detect(priv
);
5721 printk(KERN_INFO DRV_NAME
5722 ": Detected Intel Wireless WiFi Link %s REV=0x%X\n",
5723 priv
->cfg
->name
, priv
->hw_rev
);
5726 err
= priv
->cfg
->ops
->lib
->apm_ops
.init(priv
);
5728 IWL_DEBUG_INFO("Failed to init APMG\n");
5734 /* Read the EEPROM */
5735 err
= iwl_eeprom_init(priv
);
5737 IWL_ERROR("Unable to init EEPROM\n");
5740 err
= iwl_eeprom_check_version(priv
);
5744 /* extract MAC Address */
5745 iwl_eeprom_get_mac(priv
, priv
->mac_addr
);
5746 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac
, priv
->mac_addr
));
5747 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
5749 /************************
5750 * 5. Setup HW constants
5751 ************************/
5752 /* Device-specific setup */
5753 if (priv
->cfg
->ops
->lib
->set_hw_params(priv
)) {
5754 IWL_ERROR("failed to set hw parameters\n");
5755 goto out_free_eeprom
;
5758 /*******************
5760 *******************/
5762 err
= iwl_init_drv(priv
);
5764 goto out_free_eeprom
;
5765 /* At this point both hw and priv are initialized. */
5767 /**********************************
5768 * 7. Initialize module parameters
5769 **********************************/
5771 /* Disable radio (SW RF KILL) via parameter when loading driver */
5772 if (priv
->cfg
->mod_params
->disable
) {
5773 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
5774 IWL_DEBUG_INFO("Radio disabled.\n");
5777 /********************
5779 ********************/
5780 spin_lock_irqsave(&priv
->lock
, flags
);
5781 iwl4965_disable_interrupts(priv
);
5782 spin_unlock_irqrestore(&priv
->lock
, flags
);
5784 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
5786 IWL_ERROR("failed to create sysfs device attributes\n");
5787 goto out_uninit_drv
;
5791 iwl4965_setup_deferred_work(priv
);
5792 iwl4965_setup_rx_handlers(priv
);
5794 /********************
5796 ********************/
5797 pci_save_state(pdev
);
5798 pci_disable_device(pdev
);
5800 /**********************************
5801 * 10. Setup and register mac80211
5802 **********************************/
5804 err
= iwl_setup_mac(priv
);
5806 goto out_remove_sysfs
;
5808 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
5810 IWL_ERROR("failed to create debugfs files\n");
5812 /* notify iwlcore to init */
5813 iwlcore_low_level_notify(priv
, IWLCORE_INIT_EVT
);
5817 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
5819 iwl_uninit_drv(priv
);
5821 iwl_eeprom_free(priv
);
5823 pci_iounmap(pdev
, priv
->hw_base
);
5824 out_pci_release_regions
:
5825 pci_release_regions(pdev
);
5826 pci_set_drvdata(pdev
, NULL
);
5827 out_pci_disable_device
:
5828 pci_disable_device(pdev
);
5829 out_ieee80211_free_hw
:
5830 ieee80211_free_hw(priv
->hw
);
5835 static void __devexit
iwl4965_pci_remove(struct pci_dev
*pdev
)
5837 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
5838 struct list_head
*p
, *q
;
5840 unsigned long flags
;
5845 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
5847 if (priv
->mac80211_registered
) {
5848 ieee80211_unregister_hw(priv
->hw
);
5849 priv
->mac80211_registered
= 0;
5852 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5856 /* make sure we flush any pending irq or
5857 * tasklet for the driver
5859 spin_lock_irqsave(&priv
->lock
, flags
);
5860 iwl4965_disable_interrupts(priv
);
5861 spin_unlock_irqrestore(&priv
->lock
, flags
);
5863 iwl_synchronize_irq(priv
);
5865 /* Free MAC hash list for ADHOC */
5866 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++) {
5867 list_for_each_safe(p
, q
, &priv
->ibss_mac_hash
[i
]) {
5869 kfree(list_entry(p
, struct iwl4965_ibss_seq
, list
));
5873 iwlcore_low_level_notify(priv
, IWLCORE_REMOVE_EVT
);
5874 iwl_dbgfs_unregister(priv
);
5875 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
5877 iwl4965_dealloc_ucode_pci(priv
);
5880 iwl_rx_queue_free(priv
, &priv
->rxq
);
5881 iwl_hw_txq_ctx_free(priv
);
5883 iwlcore_clear_stations_table(priv
);
5884 iwl_eeprom_free(priv
);
5887 /*netif_stop_queue(dev); */
5888 flush_workqueue(priv
->workqueue
);
5890 /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
5891 * priv->workqueue... so we can't take down the workqueue
5893 destroy_workqueue(priv
->workqueue
);
5894 priv
->workqueue
= NULL
;
5896 pci_iounmap(pdev
, priv
->hw_base
);
5897 pci_release_regions(pdev
);
5898 pci_disable_device(pdev
);
5899 pci_set_drvdata(pdev
, NULL
);
5901 iwl_uninit_drv(priv
);
5903 if (priv
->ibss_beacon
)
5904 dev_kfree_skb(priv
->ibss_beacon
);
5906 ieee80211_free_hw(priv
->hw
);
5911 static int iwl4965_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
5913 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
5915 if (priv
->is_open
) {
5916 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
5917 iwl4965_mac_stop(priv
->hw
);
5921 pci_set_power_state(pdev
, PCI_D3hot
);
5926 static int iwl4965_pci_resume(struct pci_dev
*pdev
)
5928 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
5930 pci_set_power_state(pdev
, PCI_D0
);
5933 iwl4965_mac_start(priv
->hw
);
5935 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
5939 #endif /* CONFIG_PM */
5941 /*****************************************************************************
5943 * driver and module entry point
5945 *****************************************************************************/
5947 /* Hardware specific file defines the PCI IDs table for that hardware module */
5948 static struct pci_device_id iwl_hw_card_ids
[] = {
5949 {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID
, iwl4965_agn_cfg
)},
5950 {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID
, iwl4965_agn_cfg
)},
5951 #ifdef CONFIG_IWL5000
5952 {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID
, iwl5300_agn_cfg
)},
5953 {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID
, iwl5100_agn_cfg
)},
5954 {IWL_PCI_DEVICE(0x423A, PCI_ANY_ID
, iwl5350_agn_cfg
)},
5955 #endif /* CONFIG_IWL5000 */
5958 MODULE_DEVICE_TABLE(pci
, iwl_hw_card_ids
);
5960 static struct pci_driver iwl_driver
= {
5962 .id_table
= iwl_hw_card_ids
,
5963 .probe
= iwl4965_pci_probe
,
5964 .remove
= __devexit_p(iwl4965_pci_remove
),
5966 .suspend
= iwl4965_pci_suspend
,
5967 .resume
= iwl4965_pci_resume
,
5971 static int __init
iwl4965_init(void)
5975 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
5976 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
5978 ret
= iwl4965_rate_control_register();
5980 IWL_ERROR("Unable to register rate control algorithm: %d\n", ret
);
5984 ret
= pci_register_driver(&iwl_driver
);
5986 IWL_ERROR("Unable to initialize PCI module\n");
5987 goto error_register
;
5993 iwl4965_rate_control_unregister();
5997 static void __exit
iwl4965_exit(void)
5999 pci_unregister_driver(&iwl_driver
);
6000 iwl4965_rate_control_unregister();
6003 module_exit(iwl4965_exit
);
6004 module_init(iwl4965_init
);