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 int iwl4965_is_empty_essid(const char *essid
, int essid_len
)
92 /* Single white space is for Linksys APs */
93 if (essid_len
== 1 && essid
[0] == ' ')
96 /* Otherwise, if the entire essid is 0, we assume it is hidden */
99 if (essid
[essid_len
] != '\0')
106 static const char *iwl4965_escape_essid(const char *essid
, u8 essid_len
)
108 static char escaped
[IW_ESSID_MAX_SIZE
* 2 + 1];
109 const char *s
= essid
;
112 if (iwl4965_is_empty_essid(essid
, essid_len
)) {
113 memcpy(escaped
, "<hidden>", sizeof("<hidden>"));
117 essid_len
= min(essid_len
, (u8
) IW_ESSID_MAX_SIZE
);
118 while (essid_len
--) {
130 /*************** STATION TABLE MANAGEMENT ****
131 * mac80211 should be examined to determine if sta_info is duplicating
132 * the functionality provided here
135 /**************************************************************/
139 static void iwl4965_set_rxon_hwcrypto(struct iwl_priv
*priv
, int hw_decrypt
)
141 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
144 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
146 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
151 * iwl4965_check_rxon_cmd - validate RXON structure is valid
153 * NOTE: This is really only useful during development and can eventually
154 * be #ifdef'd out once the driver is stable and folks aren't actively
157 static int iwl4965_check_rxon_cmd(struct iwl_rxon_cmd
*rxon
)
162 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
163 error
|= le32_to_cpu(rxon
->flags
&
164 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
165 RXON_FLG_RADAR_DETECT_MSK
));
167 IWL_WARNING("check 24G fields %d | %d\n",
170 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
171 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
173 IWL_WARNING("check 52 fields %d | %d\n",
175 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
177 IWL_WARNING("check 52 CCK %d | %d\n",
180 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
182 IWL_WARNING("check mac addr %d | %d\n", counter
++, error
);
184 /* make sure basic rates 6Mbps and 1Mbps are supported */
185 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
186 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
188 IWL_WARNING("check basic rate %d | %d\n", counter
++, error
);
190 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
192 IWL_WARNING("check assoc id %d | %d\n", counter
++, error
);
194 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
195 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
197 IWL_WARNING("check CCK and short slot %d | %d\n",
200 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
201 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
203 IWL_WARNING("check CCK & auto detect %d | %d\n",
206 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
207 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
209 IWL_WARNING("check TGG and auto detect %d | %d\n",
213 IWL_WARNING("Tuning to channel %d\n",
214 le16_to_cpu(rxon
->channel
));
217 IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
224 * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
225 * @priv: staging_rxon is compared to active_rxon
227 * If the RXON structure is changing enough to require a new tune,
228 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
229 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
231 static int iwl4965_full_rxon_required(struct iwl_priv
*priv
)
234 /* These items are only settable from the full RXON command */
235 if (!(priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ||
236 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
237 priv
->active_rxon
.bssid_addr
) ||
238 compare_ether_addr(priv
->staging_rxon
.node_addr
,
239 priv
->active_rxon
.node_addr
) ||
240 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
241 priv
->active_rxon
.wlap_bssid_addr
) ||
242 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
243 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
244 (priv
->staging_rxon
.air_propagation
!=
245 priv
->active_rxon
.air_propagation
) ||
246 (priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
!=
247 priv
->active_rxon
.ofdm_ht_single_stream_basic_rates
) ||
248 (priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
!=
249 priv
->active_rxon
.ofdm_ht_dual_stream_basic_rates
) ||
250 (priv
->staging_rxon
.rx_chain
!= priv
->active_rxon
.rx_chain
) ||
251 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
254 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
255 * be updated with the RXON_ASSOC command -- however only some
256 * flag transitions are allowed using RXON_ASSOC */
258 /* Check if we are not switching bands */
259 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
260 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
263 /* Check if we are switching association toggle */
264 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
265 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
272 * iwl4965_commit_rxon - commit staging_rxon to hardware
274 * The RXON command in staging_rxon is committed to the hardware and
275 * the active_rxon structure is updated with the new data. This
276 * function correctly transitions out of the RXON_ASSOC_MSK state if
277 * a HW tune is required based on the RXON structure changes.
279 static int iwl4965_commit_rxon(struct iwl_priv
*priv
)
281 /* cast away the const for active_rxon in this function */
282 struct iwl_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
283 DECLARE_MAC_BUF(mac
);
286 if (!iwl_is_alive(priv
))
289 /* always get timestamp with Rx frame */
290 priv
->staging_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
292 rc
= iwl4965_check_rxon_cmd(&priv
->staging_rxon
);
294 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
298 /* If we don't need to send a full RXON, we can use
299 * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
300 * and other flags for the current radio configuration. */
301 if (!iwl4965_full_rxon_required(priv
)) {
302 rc
= iwl_send_rxon_assoc(priv
);
304 IWL_ERROR("Error setting RXON_ASSOC "
305 "configuration (%d).\n", rc
);
309 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
314 /* station table will be cleared */
315 priv
->assoc_station_added
= 0;
317 /* If we are currently associated and the new config requires
318 * an RXON_ASSOC and the new config wants the associated mask enabled,
319 * we must clear the associated from the active configuration
320 * before we apply the new config */
321 if (iwl_is_associated(priv
) &&
322 (priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
)) {
323 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
324 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
326 rc
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
327 sizeof(struct iwl_rxon_cmd
),
330 /* If the mask clearing failed then we set
331 * active_rxon back to what it was previously */
333 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
334 IWL_ERROR("Error clearing ASSOC_MSK on current "
335 "configuration (%d).\n", rc
);
340 IWL_DEBUG_INFO("Sending RXON\n"
341 "* with%s RXON_FILTER_ASSOC_MSK\n"
344 ((priv
->staging_rxon
.filter_flags
&
345 RXON_FILTER_ASSOC_MSK
) ? "" : "out"),
346 le16_to_cpu(priv
->staging_rxon
.channel
),
347 print_mac(mac
, priv
->staging_rxon
.bssid_addr
));
349 iwl4965_set_rxon_hwcrypto(priv
, !priv
->hw_params
.sw_crypto
);
350 /* Apply the new configuration */
351 rc
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
352 sizeof(struct iwl_rxon_cmd
), &priv
->staging_rxon
);
354 IWL_ERROR("Error setting new configuration (%d).\n", rc
);
358 iwl_remove_station(priv
, iwl_bcast_addr
, 0);
359 iwlcore_clear_stations_table(priv
);
361 if (!priv
->error_recovering
)
362 priv
->start_calib
= 0;
364 iwl_init_sensitivity(priv
);
366 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
368 /* If we issue a new RXON command which required a tune then we must
369 * send a new TXPOWER command or we won't be able to Tx any frames */
370 rc
= iwl4965_hw_reg_send_txpower(priv
);
372 IWL_ERROR("Error setting Tx power (%d).\n", rc
);
376 /* Add the broadcast address so we can send broadcast frames */
377 if (iwl_rxon_add_station(priv
, iwl_bcast_addr
, 0) ==
378 IWL_INVALID_STATION
) {
379 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
383 /* If we have set the ASSOC_MSK and we are in BSS mode then
384 * add the IWL_AP_ID to the station rate table */
385 if (iwl_is_associated(priv
) &&
386 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)) {
387 if (iwl_rxon_add_station(priv
, priv
->active_rxon
.bssid_addr
, 1)
388 == IWL_INVALID_STATION
) {
389 IWL_ERROR("Error adding AP address for transmit.\n");
392 priv
->assoc_station_added
= 1;
393 if (priv
->default_wep_key
&&
394 iwl_send_static_wepkey_cmd(priv
, 0))
395 IWL_ERROR("Could not send WEP static key.\n");
401 void iwl4965_update_chain_flags(struct iwl_priv
*priv
)
404 iwl_set_rxon_chain(priv
);
405 iwl4965_commit_rxon(priv
);
408 static int iwl4965_send_bt_config(struct iwl_priv
*priv
)
410 struct iwl4965_bt_cmd bt_cmd
= {
418 return iwl_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
419 sizeof(struct iwl4965_bt_cmd
), &bt_cmd
);
422 static int iwl4965_send_scan_abort(struct iwl_priv
*priv
)
425 struct iwl_rx_packet
*res
;
426 struct iwl_host_cmd cmd
= {
427 .id
= REPLY_SCAN_ABORT_CMD
,
428 .meta
.flags
= CMD_WANT_SKB
,
431 /* If there isn't a scan actively going on in the hardware
432 * then we are in between scan bands and not actually
433 * actively scanning, so don't send the abort command */
434 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
435 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
439 ret
= iwl_send_cmd_sync(priv
, &cmd
);
441 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
445 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
446 if (res
->u
.status
!= CAN_ABORT_STATUS
) {
447 /* The scan abort will return 1 for success or
448 * 2 for "failure". A failure condition can be
449 * due to simply not being in an active scan which
450 * can occur if we send the scan abort before we
451 * the microcode has notified us that a scan is
453 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res
->u
.status
);
454 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
455 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
458 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
466 * Use: Sets the device's internal card state to enable, disable, or halt
468 * When in the 'enable' state the card operates as normal.
469 * When in the 'disable' state, the card enters into a low power mode.
470 * When in the 'halt' state, the card is shut down and must be fully
471 * restarted to come back on.
473 static int iwl4965_send_card_state(struct iwl_priv
*priv
, u32 flags
, u8 meta_flag
)
475 struct iwl_host_cmd cmd
= {
476 .id
= REPLY_CARD_STATE_CMD
,
479 .meta
.flags
= meta_flag
,
482 return iwl_send_cmd(priv
, &cmd
);
485 static void iwl_clear_free_frames(struct iwl_priv
*priv
)
487 struct list_head
*element
;
489 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
492 while (!list_empty(&priv
->free_frames
)) {
493 element
= priv
->free_frames
.next
;
495 kfree(list_entry(element
, struct iwl_frame
, list
));
496 priv
->frames_count
--;
499 if (priv
->frames_count
) {
500 IWL_WARNING("%d frames still in use. Did we lose one?\n",
502 priv
->frames_count
= 0;
506 static struct iwl_frame
*iwl_get_free_frame(struct iwl_priv
*priv
)
508 struct iwl_frame
*frame
;
509 struct list_head
*element
;
510 if (list_empty(&priv
->free_frames
)) {
511 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
513 IWL_ERROR("Could not allocate frame!\n");
517 priv
->frames_count
++;
521 element
= priv
->free_frames
.next
;
523 return list_entry(element
, struct iwl_frame
, list
);
526 static void iwl_free_frame(struct iwl_priv
*priv
, struct iwl_frame
*frame
)
528 memset(frame
, 0, sizeof(*frame
));
529 list_add(&frame
->list
, &priv
->free_frames
);
532 unsigned int iwl4965_fill_beacon_frame(struct iwl_priv
*priv
,
533 struct ieee80211_hdr
*hdr
,
534 const u8
*dest
, int left
)
537 if (!iwl_is_associated(priv
) || !priv
->ibss_beacon
||
538 ((priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) &&
539 (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
)))
542 if (priv
->ibss_beacon
->len
> left
)
545 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
547 return priv
->ibss_beacon
->len
;
550 static u8
iwl4965_rate_get_lowest_plcp(struct iwl_priv
*priv
)
556 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
557 rate_mask
= priv
->active_rate_basic
& 0xF;
559 rate_mask
= priv
->active_rate_basic
& 0xFF0;
561 /* Find lowest valid rate */
562 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
563 i
= iwl_rates
[i
].next_ieee
) {
564 if (rate_mask
& (1 << i
))
565 return iwl_rates
[i
].plcp
;
568 /* No valid rate was found. Assign the lowest one */
569 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
570 return IWL_RATE_1M_PLCP
;
572 return IWL_RATE_6M_PLCP
;
575 static int iwl4965_send_beacon_cmd(struct iwl_priv
*priv
)
577 struct iwl_frame
*frame
;
578 unsigned int frame_size
;
582 frame
= iwl_get_free_frame(priv
);
585 IWL_ERROR("Could not obtain free frame buffer for beacon "
590 rate
= iwl4965_rate_get_lowest_plcp(priv
);
592 frame_size
= iwl4965_hw_get_beacon_cmd(priv
, frame
, rate
);
594 rc
= iwl_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
597 iwl_free_frame(priv
, frame
);
602 /******************************************************************************
604 * Misc. internal state and helper functions
606 ******************************************************************************/
609 * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field
611 * return : set the bit for each supported rate insert in ie
613 static u16
iwl4965_supported_rate_to_ie(u8
*ie
, u16 supported_rate
,
614 u16 basic_rate
, int *left
)
616 u16 ret_rates
= 0, bit
;
621 for (bit
= 1, i
= 0; i
< IWL_RATE_COUNT
; i
++, bit
<<= 1) {
622 if (bit
& supported_rate
) {
624 rates
[*cnt
] = iwl_rates
[i
].ieee
|
625 ((bit
& basic_rate
) ? 0x80 : 0x00);
629 (*cnt
>= IWL_SUPPORTED_RATES_IE_LEN
))
637 static void iwl4965_ht_conf(struct iwl_priv
*priv
,
638 struct ieee80211_bss_conf
*bss_conf
)
640 struct ieee80211_ht_info
*ht_conf
= bss_conf
->ht_conf
;
641 struct ieee80211_ht_bss_info
*ht_bss_conf
= bss_conf
->ht_bss_conf
;
642 struct iwl_ht_info
*iwl_conf
= &priv
->current_ht_config
;
644 IWL_DEBUG_MAC80211("enter: \n");
646 iwl_conf
->is_ht
= bss_conf
->assoc_ht
;
648 if (!iwl_conf
->is_ht
)
651 priv
->ps_mode
= (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
653 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_20
)
654 iwl_conf
->sgf
|= HT_SHORT_GI_20MHZ
;
655 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_40
)
656 iwl_conf
->sgf
|= HT_SHORT_GI_40MHZ
;
658 iwl_conf
->is_green_field
= !!(ht_conf
->cap
& IEEE80211_HT_CAP_GRN_FLD
);
659 iwl_conf
->max_amsdu_size
=
660 !!(ht_conf
->cap
& IEEE80211_HT_CAP_MAX_AMSDU
);
662 iwl_conf
->supported_chan_width
=
663 !!(ht_conf
->cap
& IEEE80211_HT_CAP_SUP_WIDTH
);
664 iwl_conf
->extension_chan_offset
=
665 ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_SEC_OFFSET
;
666 /* If no above or below channel supplied disable FAT channel */
667 if (iwl_conf
->extension_chan_offset
!= IEEE80211_HT_IE_CHA_SEC_ABOVE
&&
668 iwl_conf
->extension_chan_offset
!= IEEE80211_HT_IE_CHA_SEC_BELOW
) {
669 iwl_conf
->extension_chan_offset
= IEEE80211_HT_IE_CHA_SEC_NONE
;
670 iwl_conf
->supported_chan_width
= 0;
673 iwl_conf
->tx_mimo_ps_mode
=
674 (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
675 memcpy(iwl_conf
->supp_mcs_set
, ht_conf
->supp_mcs_set
, 16);
677 iwl_conf
->control_channel
= ht_bss_conf
->primary_channel
;
678 iwl_conf
->tx_chan_width
=
679 !!(ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_WIDTH
);
680 iwl_conf
->ht_protection
=
681 ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_HT_PROTECTION
;
682 iwl_conf
->non_GF_STA_present
=
683 !!(ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_NON_GF_STA_PRSNT
);
685 IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf
->control_channel
);
686 IWL_DEBUG_MAC80211("leave\n");
689 static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band
*sband
,
692 struct ieee80211_ht_cap
*ht_cap
;
694 if (!sband
|| !sband
->ht_info
.ht_supported
)
697 if (*left
< sizeof(struct ieee80211_ht_cap
))
700 *pos
++ = sizeof(struct ieee80211_ht_cap
);
701 ht_cap
= (struct ieee80211_ht_cap
*) pos
;
703 ht_cap
->cap_info
= cpu_to_le16(sband
->ht_info
.cap
);
704 memcpy(ht_cap
->supp_mcs_set
, sband
->ht_info
.supp_mcs_set
, 16);
705 ht_cap
->ampdu_params_info
=
706 (sband
->ht_info
.ampdu_factor
& IEEE80211_HT_CAP_AMPDU_FACTOR
) |
707 ((sband
->ht_info
.ampdu_density
<< 2) &
708 IEEE80211_HT_CAP_AMPDU_DENSITY
);
709 *left
-= sizeof(struct ieee80211_ht_cap
);
713 * iwl4965_fill_probe_req - fill in all required fields and IE for probe request
715 static u16
iwl4965_fill_probe_req(struct iwl_priv
*priv
,
716 enum ieee80211_band band
,
717 struct ieee80211_mgmt
*frame
,
718 int left
, int is_direct
)
722 u16 active_rates
, ret_rates
, cck_rates
, active_rate_basic
;
723 const struct ieee80211_supported_band
*sband
=
724 iwl_get_hw_mode(priv
, band
);
726 /* Make sure there is enough space for the probe request,
727 * two mandatory IEs and the data */
733 frame
->frame_control
= cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
);
734 memcpy(frame
->da
, iwl_bcast_addr
, ETH_ALEN
);
735 memcpy(frame
->sa
, priv
->mac_addr
, ETH_ALEN
);
736 memcpy(frame
->bssid
, iwl_bcast_addr
, ETH_ALEN
);
739 /* fill in our indirect SSID IE */
746 pos
= &(frame
->u
.probe_req
.variable
[0]);
747 *pos
++ = WLAN_EID_SSID
;
750 /* fill in our direct SSID IE... */
753 left
-= 2 + priv
->essid_len
;
756 /* ... fill it in... */
757 *pos
++ = WLAN_EID_SSID
;
758 *pos
++ = priv
->essid_len
;
759 memcpy(pos
, priv
->essid
, priv
->essid_len
);
760 pos
+= priv
->essid_len
;
761 len
+= 2 + priv
->essid_len
;
764 /* fill in supported rate */
770 /* ... fill it in... */
771 *pos
++ = WLAN_EID_SUPP_RATES
;
774 /* exclude 60M rate */
775 active_rates
= priv
->rates_mask
;
776 active_rates
&= ~IWL_RATE_60M_MASK
;
778 active_rate_basic
= active_rates
& IWL_BASIC_RATES_MASK
;
780 cck_rates
= IWL_CCK_RATES_MASK
& active_rates
;
781 ret_rates
= iwl4965_supported_rate_to_ie(pos
, cck_rates
,
782 active_rate_basic
, &left
);
783 active_rates
&= ~ret_rates
;
785 ret_rates
= iwl4965_supported_rate_to_ie(pos
, active_rates
,
786 active_rate_basic
, &left
);
787 active_rates
&= ~ret_rates
;
791 if (active_rates
== 0)
794 /* fill in supported extended rate */
799 /* ... fill it in... */
800 *pos
++ = WLAN_EID_EXT_SUPP_RATES
;
802 iwl4965_supported_rate_to_ie(pos
, active_rates
,
803 active_rate_basic
, &left
);
813 *pos
++ = WLAN_EID_HT_CAPABILITY
;
816 iwl_ht_cap_to_ie(sband
, pos
, &left
);
826 static int iwl4965_send_qos_params_command(struct iwl_priv
*priv
,
827 struct iwl4965_qosparam_cmd
*qos
)
830 return iwl_send_cmd_pdu(priv
, REPLY_QOS_PARAM
,
831 sizeof(struct iwl4965_qosparam_cmd
), qos
);
834 static void iwl4965_activate_qos(struct iwl_priv
*priv
, u8 force
)
838 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
841 if (!priv
->qos_data
.qos_enable
)
844 spin_lock_irqsave(&priv
->lock
, flags
);
845 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
847 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
848 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
849 priv
->qos_data
.def_qos_parm
.qos_flags
|=
850 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
851 if (priv
->qos_data
.qos_active
)
852 priv
->qos_data
.def_qos_parm
.qos_flags
|=
853 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
855 if (priv
->current_ht_config
.is_ht
)
856 priv
->qos_data
.def_qos_parm
.qos_flags
|= QOS_PARAM_FLG_TGN_MSK
;
858 spin_unlock_irqrestore(&priv
->lock
, flags
);
860 if (force
|| iwl_is_associated(priv
)) {
861 IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
862 priv
->qos_data
.qos_active
,
863 priv
->qos_data
.def_qos_parm
.qos_flags
);
865 iwl4965_send_qos_params_command(priv
,
866 &(priv
->qos_data
.def_qos_parm
));
870 int iwl4965_is_network_packet(struct iwl_priv
*priv
, struct ieee80211_hdr
*header
)
872 /* Filter incoming packets to determine if they are targeted toward
873 * this network, discarding packets coming from ourselves */
874 switch (priv
->iw_mode
) {
875 case IEEE80211_IF_TYPE_IBSS
: /* Header: Dest. | Source | BSSID */
876 /* packets from our adapter are dropped (echo) */
877 if (!compare_ether_addr(header
->addr2
, priv
->mac_addr
))
879 /* {broad,multi}cast packets to our IBSS go through */
880 if (is_multicast_ether_addr(header
->addr1
))
881 return !compare_ether_addr(header
->addr3
, priv
->bssid
);
882 /* packets to our adapter go through */
883 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
884 case IEEE80211_IF_TYPE_STA
: /* Header: Dest. | AP{BSSID} | Source */
885 /* packets from our adapter are dropped (echo) */
886 if (!compare_ether_addr(header
->addr3
, priv
->mac_addr
))
888 /* {broad,multi}cast packets to our BSS go through */
889 if (is_multicast_ether_addr(header
->addr1
))
890 return !compare_ether_addr(header
->addr2
, priv
->bssid
);
891 /* packets to our adapter go through */
892 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
903 * iwl4965_scan_cancel - Cancel any currently executing HW scan
905 * NOTE: priv->mutex is not required before calling this function
907 static int iwl4965_scan_cancel(struct iwl_priv
*priv
)
909 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
910 clear_bit(STATUS_SCANNING
, &priv
->status
);
914 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
915 if (!test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
916 IWL_DEBUG_SCAN("Queuing scan abort.\n");
917 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
918 queue_work(priv
->workqueue
, &priv
->abort_scan
);
921 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
923 return test_bit(STATUS_SCANNING
, &priv
->status
);
930 * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan
931 * @ms: amount of time to wait (in milliseconds) for scan to abort
933 * NOTE: priv->mutex must be held before calling this function
935 static int iwl4965_scan_cancel_timeout(struct iwl_priv
*priv
, unsigned long ms
)
937 unsigned long now
= jiffies
;
940 ret
= iwl4965_scan_cancel(priv
);
942 mutex_unlock(&priv
->mutex
);
943 while (!time_after(jiffies
, now
+ msecs_to_jiffies(ms
)) &&
944 test_bit(STATUS_SCANNING
, &priv
->status
))
946 mutex_lock(&priv
->mutex
);
948 return test_bit(STATUS_SCANNING
, &priv
->status
);
954 static void iwl4965_sequence_reset(struct iwl_priv
*priv
)
956 /* Reset ieee stats */
958 /* We don't reset the net_device_stats (ieee->stats) on
961 priv
->last_seq_num
= -1;
962 priv
->last_frag_num
= -1;
963 priv
->last_packet_time
= 0;
965 iwl4965_scan_cancel(priv
);
968 #define MAX_UCODE_BEACON_INTERVAL 4096
969 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
971 static __le16
iwl4965_adjust_beacon_interval(u16 beacon_val
)
974 u16 beacon_factor
= 0;
977 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
978 / MAX_UCODE_BEACON_INTERVAL
;
979 new_val
= beacon_val
/ beacon_factor
;
981 return cpu_to_le16(new_val
);
984 static void iwl4965_setup_rxon_timing(struct iwl_priv
*priv
)
986 u64 interval_tm_unit
;
989 struct ieee80211_conf
*conf
= NULL
;
992 conf
= ieee80211_get_hw_conf(priv
->hw
);
994 spin_lock_irqsave(&priv
->lock
, flags
);
995 priv
->rxon_timing
.timestamp
.dw
[1] = cpu_to_le32(priv
->timestamp
>> 32);
996 priv
->rxon_timing
.timestamp
.dw
[0] =
997 cpu_to_le32(priv
->timestamp
& 0xFFFFFFFF);
999 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
1001 tsf
= priv
->timestamp
;
1003 beacon_int
= priv
->beacon_int
;
1004 spin_unlock_irqrestore(&priv
->lock
, flags
);
1006 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) {
1007 if (beacon_int
== 0) {
1008 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
1009 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
1011 priv
->rxon_timing
.beacon_interval
=
1012 cpu_to_le16(beacon_int
);
1013 priv
->rxon_timing
.beacon_interval
=
1014 iwl4965_adjust_beacon_interval(
1015 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
1018 priv
->rxon_timing
.atim_window
= 0;
1020 priv
->rxon_timing
.beacon_interval
=
1021 iwl4965_adjust_beacon_interval(conf
->beacon_int
);
1022 /* TODO: we need to get atim_window from upper stack
1023 * for now we set to 0 */
1024 priv
->rxon_timing
.atim_window
= 0;
1028 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
1029 result
= do_div(tsf
, interval_tm_unit
);
1030 priv
->rxon_timing
.beacon_init_val
=
1031 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
1034 ("beacon interval %d beacon timer %d beacon tim %d\n",
1035 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
1036 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
1037 le16_to_cpu(priv
->rxon_timing
.atim_window
));
1040 static int iwl4965_scan_initiate(struct iwl_priv
*priv
)
1042 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
1043 IWL_ERROR("APs don't scan.\n");
1047 if (!iwl_is_ready_rf(priv
)) {
1048 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
1052 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
1053 IWL_DEBUG_SCAN("Scan already in progress.\n");
1057 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
1058 IWL_DEBUG_SCAN("Scan request while abort pending. "
1063 IWL_DEBUG_INFO("Starting scan...\n");
1064 priv
->scan_bands
= 2;
1065 set_bit(STATUS_SCANNING
, &priv
->status
);
1066 priv
->scan_start
= jiffies
;
1067 priv
->scan_pass_start
= priv
->scan_start
;
1069 queue_work(priv
->workqueue
, &priv
->request_scan
);
1075 static void iwl_set_flags_for_band(struct iwl_priv
*priv
,
1076 enum ieee80211_band band
)
1078 if (band
== IEEE80211_BAND_5GHZ
) {
1079 priv
->staging_rxon
.flags
&=
1080 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
1081 | RXON_FLG_CCK_MSK
);
1082 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1084 /* Copied from iwl4965_post_associate() */
1085 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
1086 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1088 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1090 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
1091 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1093 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
1094 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
1095 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
1100 * initialize rxon structure with default values from eeprom
1102 static void iwl4965_connection_init_rx_config(struct iwl_priv
*priv
)
1104 const struct iwl_channel_info
*ch_info
;
1106 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
1108 switch (priv
->iw_mode
) {
1109 case IEEE80211_IF_TYPE_AP
:
1110 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
1113 case IEEE80211_IF_TYPE_STA
:
1114 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
1115 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
1118 case IEEE80211_IF_TYPE_IBSS
:
1119 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
1120 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
1121 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
1122 RXON_FILTER_ACCEPT_GRP_MSK
;
1125 case IEEE80211_IF_TYPE_MNTR
:
1126 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
1127 priv
->staging_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
1128 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
1131 IWL_ERROR("Unsupported interface type %d\n", priv
->iw_mode
);
1136 /* TODO: Figure out when short_preamble would be set and cache from
1138 if (!hw_to_local(priv
->hw
)->short_preamble
)
1139 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
1141 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
1144 ch_info
= iwl_get_channel_info(priv
, priv
->band
,
1145 le16_to_cpu(priv
->staging_rxon
.channel
));
1148 ch_info
= &priv
->channel_info
[0];
1151 * in some case A channels are all non IBSS
1152 * in this case force B/G channel
1154 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) &&
1155 !(is_channel_ibss(ch_info
)))
1156 ch_info
= &priv
->channel_info
[0];
1158 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
1159 priv
->band
= ch_info
->band
;
1161 iwl_set_flags_for_band(priv
, priv
->band
);
1163 priv
->staging_rxon
.ofdm_basic_rates
=
1164 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
1165 priv
->staging_rxon
.cck_basic_rates
=
1166 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
1168 priv
->staging_rxon
.flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK
|
1169 RXON_FLG_CHANNEL_MODE_PURE_40_MSK
);
1170 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
1171 memcpy(priv
->staging_rxon
.wlap_bssid_addr
, priv
->mac_addr
, ETH_ALEN
);
1172 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
= 0xff;
1173 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
= 0xff;
1174 iwl_set_rxon_chain(priv
);
1177 static int iwl4965_set_mode(struct iwl_priv
*priv
, int mode
)
1179 if (mode
== IEEE80211_IF_TYPE_IBSS
) {
1180 const struct iwl_channel_info
*ch_info
;
1182 ch_info
= iwl_get_channel_info(priv
,
1184 le16_to_cpu(priv
->staging_rxon
.channel
));
1186 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
1187 IWL_ERROR("channel %d not IBSS channel\n",
1188 le16_to_cpu(priv
->staging_rxon
.channel
));
1193 priv
->iw_mode
= mode
;
1195 iwl4965_connection_init_rx_config(priv
);
1196 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
1198 iwlcore_clear_stations_table(priv
);
1200 /* dont commit rxon if rf-kill is on*/
1201 if (!iwl_is_ready_rf(priv
))
1204 cancel_delayed_work(&priv
->scan_check
);
1205 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
1206 IWL_WARNING("Aborted scan still in progress after 100ms\n");
1207 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
1211 iwl4965_commit_rxon(priv
);
1216 static void iwl4965_set_rate(struct iwl_priv
*priv
)
1218 const struct ieee80211_supported_band
*hw
= NULL
;
1219 struct ieee80211_rate
*rate
;
1222 hw
= iwl_get_hw_mode(priv
, priv
->band
);
1224 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
1228 priv
->active_rate
= 0;
1229 priv
->active_rate_basic
= 0;
1231 for (i
= 0; i
< hw
->n_bitrates
; i
++) {
1232 rate
= &(hw
->bitrates
[i
]);
1233 if (rate
->hw_value
< IWL_RATE_COUNT
)
1234 priv
->active_rate
|= (1 << rate
->hw_value
);
1237 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
1238 priv
->active_rate
, priv
->active_rate_basic
);
1241 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
1242 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
1245 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
1246 priv
->staging_rxon
.cck_basic_rates
=
1247 ((priv
->active_rate_basic
&
1248 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
1250 priv
->staging_rxon
.cck_basic_rates
=
1251 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
1253 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
1254 priv
->staging_rxon
.ofdm_basic_rates
=
1255 ((priv
->active_rate_basic
&
1256 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
1257 IWL_FIRST_OFDM_RATE
) & 0xFF;
1259 priv
->staging_rxon
.ofdm_basic_rates
=
1260 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
1263 int iwl4965_radio_kill_sw(struct iwl_priv
*priv
, int disable_radio
)
1265 unsigned long flags
;
1267 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
1270 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
1271 disable_radio
? "OFF" : "ON");
1273 if (disable_radio
) {
1274 iwl4965_scan_cancel(priv
);
1275 /* FIXME: This is a workaround for AP */
1276 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
1277 spin_lock_irqsave(&priv
->lock
, flags
);
1278 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
1279 CSR_UCODE_SW_BIT_RFKILL
);
1280 spin_unlock_irqrestore(&priv
->lock
, flags
);
1281 /* call the host command only if no hw rf-kill set */
1282 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
) &&
1284 iwl4965_send_card_state(priv
,
1285 CARD_STATE_CMD_DISABLE
,
1287 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
1289 /* make sure mac80211 stop sending Tx frame */
1290 if (priv
->mac80211_registered
)
1291 ieee80211_stop_queues(priv
->hw
);
1296 spin_lock_irqsave(&priv
->lock
, flags
);
1297 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
1299 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
1300 spin_unlock_irqrestore(&priv
->lock
, flags
);
1305 spin_lock_irqsave(&priv
->lock
, flags
);
1306 iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
1307 if (!iwl_grab_nic_access(priv
))
1308 iwl_release_nic_access(priv
);
1309 spin_unlock_irqrestore(&priv
->lock
, flags
);
1311 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
1312 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
1313 "disabled by HW switch\n");
1317 queue_work(priv
->workqueue
, &priv
->restart
);
1321 #define IWL_PACKET_RETRY_TIME HZ
1323 int iwl4965_is_duplicate_packet(struct iwl_priv
*priv
, struct ieee80211_hdr
*header
)
1325 u16 sc
= le16_to_cpu(header
->seq_ctrl
);
1326 u16 seq
= (sc
& IEEE80211_SCTL_SEQ
) >> 4;
1327 u16 frag
= sc
& IEEE80211_SCTL_FRAG
;
1328 u16
*last_seq
, *last_frag
;
1329 unsigned long *last_time
;
1331 switch (priv
->iw_mode
) {
1332 case IEEE80211_IF_TYPE_IBSS
:{
1333 struct list_head
*p
;
1334 struct iwl4965_ibss_seq
*entry
= NULL
;
1335 u8
*mac
= header
->addr2
;
1336 int index
= mac
[5] & (IWL_IBSS_MAC_HASH_SIZE
- 1);
1338 __list_for_each(p
, &priv
->ibss_mac_hash
[index
]) {
1339 entry
= list_entry(p
, struct iwl4965_ibss_seq
, list
);
1340 if (!compare_ether_addr(entry
->mac
, mac
))
1343 if (p
== &priv
->ibss_mac_hash
[index
]) {
1344 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
1346 IWL_ERROR("Cannot malloc new mac entry\n");
1349 memcpy(entry
->mac
, mac
, ETH_ALEN
);
1350 entry
->seq_num
= seq
;
1351 entry
->frag_num
= frag
;
1352 entry
->packet_time
= jiffies
;
1353 list_add(&entry
->list
, &priv
->ibss_mac_hash
[index
]);
1356 last_seq
= &entry
->seq_num
;
1357 last_frag
= &entry
->frag_num
;
1358 last_time
= &entry
->packet_time
;
1361 case IEEE80211_IF_TYPE_STA
:
1362 last_seq
= &priv
->last_seq_num
;
1363 last_frag
= &priv
->last_frag_num
;
1364 last_time
= &priv
->last_packet_time
;
1369 if ((*last_seq
== seq
) &&
1370 time_after(*last_time
+ IWL_PACKET_RETRY_TIME
, jiffies
)) {
1371 if (*last_frag
== frag
)
1373 if (*last_frag
+ 1 != frag
)
1374 /* out-of-order fragment */
1380 *last_time
= jiffies
;
1387 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
1389 #include "iwl-spectrum.h"
1391 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
1392 #define BEACON_TIME_MASK_HIGH 0xFF000000
1393 #define TIME_UNIT 1024
1396 * extended beacon time format
1397 * time in usec will be changed into a 32-bit value in 8:24 format
1398 * the high 1 byte is the beacon counts
1399 * the lower 3 bytes is the time in usec within one beacon interval
1402 static u32
iwl4965_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
1406 u32 interval
= beacon_interval
* 1024;
1408 if (!interval
|| !usec
)
1411 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
1412 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
1414 return (quot
<< 24) + rem
;
1417 /* base is usually what we get from ucode with each received frame,
1418 * the same as HW timer counter counting down
1421 static __le32
iwl4965_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
1423 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
1424 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
1425 u32 interval
= beacon_interval
* TIME_UNIT
;
1426 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
1427 (addon
& BEACON_TIME_MASK_HIGH
);
1429 if (base_low
> addon_low
)
1430 res
+= base_low
- addon_low
;
1431 else if (base_low
< addon_low
) {
1432 res
+= interval
+ base_low
- addon_low
;
1437 return cpu_to_le32(res
);
1440 static int iwl4965_get_measurement(struct iwl_priv
*priv
,
1441 struct ieee80211_measurement_params
*params
,
1444 struct iwl4965_spectrum_cmd spectrum
;
1445 struct iwl_rx_packet
*res
;
1446 struct iwl_host_cmd cmd
= {
1447 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
1448 .data
= (void *)&spectrum
,
1449 .meta
.flags
= CMD_WANT_SKB
,
1451 u32 add_time
= le64_to_cpu(params
->start_time
);
1453 int spectrum_resp_status
;
1454 int duration
= le16_to_cpu(params
->duration
);
1456 if (iwl_is_associated(priv
))
1458 iwl4965_usecs_to_beacons(
1459 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
1460 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
1462 memset(&spectrum
, 0, sizeof(spectrum
));
1464 spectrum
.channel_count
= cpu_to_le16(1);
1466 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
1467 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
1468 cmd
.len
= sizeof(spectrum
);
1469 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
1471 if (iwl_is_associated(priv
))
1472 spectrum
.start_time
=
1473 iwl4965_add_beacon_time(priv
->last_beacon_time
,
1475 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
1477 spectrum
.start_time
= 0;
1479 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
1480 spectrum
.channels
[0].channel
= params
->channel
;
1481 spectrum
.channels
[0].type
= type
;
1482 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
1483 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
1484 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
1486 rc
= iwl_send_cmd_sync(priv
, &cmd
);
1490 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1491 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1492 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
1496 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
1497 switch (spectrum_resp_status
) {
1498 case 0: /* Command will be handled */
1499 if (res
->u
.spectrum
.id
!= 0xff) {
1501 ("Replaced existing measurement: %d\n",
1502 res
->u
.spectrum
.id
);
1503 priv
->measurement_status
&= ~MEASUREMENT_READY
;
1505 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
1509 case 1: /* Command will not be handled */
1514 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1520 /******************************************************************************
1522 * Generic RX handler implementations
1524 ******************************************************************************/
1525 static void iwl_rx_reply_alive(struct iwl_priv
*priv
,
1526 struct iwl_rx_mem_buffer
*rxb
)
1528 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1529 struct iwl_alive_resp
*palive
;
1530 struct delayed_work
*pwork
;
1532 palive
= &pkt
->u
.alive_frame
;
1534 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
1536 palive
->is_valid
, palive
->ver_type
,
1537 palive
->ver_subtype
);
1539 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
1540 IWL_DEBUG_INFO("Initialization Alive received.\n");
1541 memcpy(&priv
->card_alive_init
,
1542 &pkt
->u
.alive_frame
,
1543 sizeof(struct iwl_init_alive_resp
));
1544 pwork
= &priv
->init_alive_start
;
1546 IWL_DEBUG_INFO("Runtime Alive received.\n");
1547 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
1548 sizeof(struct iwl_alive_resp
));
1549 pwork
= &priv
->alive_start
;
1552 /* We delay the ALIVE response by 5ms to
1553 * give the HW RF Kill time to activate... */
1554 if (palive
->is_valid
== UCODE_VALID_OK
)
1555 queue_delayed_work(priv
->workqueue
, pwork
,
1556 msecs_to_jiffies(5));
1558 IWL_WARNING("uCode did not respond OK.\n");
1561 static void iwl4965_rx_reply_error(struct iwl_priv
*priv
,
1562 struct iwl_rx_mem_buffer
*rxb
)
1564 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1566 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
1567 "seq 0x%04X ser 0x%08X\n",
1568 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
1569 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
1570 pkt
->u
.err_resp
.cmd_id
,
1571 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
1572 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
1575 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
1577 static void iwl4965_rx_csa(struct iwl_priv
*priv
, struct iwl_rx_mem_buffer
*rxb
)
1579 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1580 struct iwl_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
1581 struct iwl4965_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
1582 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
1583 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
1584 rxon
->channel
= csa
->channel
;
1585 priv
->staging_rxon
.channel
= csa
->channel
;
1588 static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv
*priv
,
1589 struct iwl_rx_mem_buffer
*rxb
)
1591 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
1592 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1593 struct iwl4965_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
1595 if (!report
->state
) {
1596 IWL_DEBUG(IWL_DL_11H
,
1597 "Spectrum Measure Notification: Start\n");
1601 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
1602 priv
->measurement_status
|= MEASUREMENT_READY
;
1606 static void iwl4965_rx_pm_sleep_notif(struct iwl_priv
*priv
,
1607 struct iwl_rx_mem_buffer
*rxb
)
1609 #ifdef CONFIG_IWLWIFI_DEBUG
1610 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1611 struct iwl4965_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
1612 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
1613 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
1617 static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
1618 struct iwl_rx_mem_buffer
*rxb
)
1620 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1621 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
1622 "notification for %s:\n",
1623 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
1624 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
1627 static void iwl4965_bg_beacon_update(struct work_struct
*work
)
1629 struct iwl_priv
*priv
=
1630 container_of(work
, struct iwl_priv
, beacon_update
);
1631 struct sk_buff
*beacon
;
1633 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
1634 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
);
1637 IWL_ERROR("update beacon failed\n");
1641 mutex_lock(&priv
->mutex
);
1642 /* new beacon skb is allocated every time; dispose previous.*/
1643 if (priv
->ibss_beacon
)
1644 dev_kfree_skb(priv
->ibss_beacon
);
1646 priv
->ibss_beacon
= beacon
;
1647 mutex_unlock(&priv
->mutex
);
1649 iwl4965_send_beacon_cmd(priv
);
1653 * iwl4965_bg_statistics_periodic - Timer callback to queue statistics
1655 * This callback is provided in order to send a statistics request.
1657 * This timer function is continually reset to execute within
1658 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
1659 * was received. We need to ensure we receive the statistics in order
1660 * to update the temperature used for calibrating the TXPOWER.
1662 static void iwl4965_bg_statistics_periodic(unsigned long data
)
1664 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
1666 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
1669 iwl_send_statistics_request(priv
, CMD_ASYNC
);
1672 static void iwl4965_rx_beacon_notif(struct iwl_priv
*priv
,
1673 struct iwl_rx_mem_buffer
*rxb
)
1675 #ifdef CONFIG_IWLWIFI_DEBUG
1676 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1677 struct iwl4965_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
1678 u8 rate
= iwl4965_hw_get_rate(beacon
->beacon_notify_hdr
.rate_n_flags
);
1680 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
1681 "tsf %d %d rate %d\n",
1682 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
1683 beacon
->beacon_notify_hdr
.failure_frame
,
1684 le32_to_cpu(beacon
->ibss_mgr_status
),
1685 le32_to_cpu(beacon
->high_tsf
),
1686 le32_to_cpu(beacon
->low_tsf
), rate
);
1689 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
1690 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
1691 queue_work(priv
->workqueue
, &priv
->beacon_update
);
1694 /* Service response to REPLY_SCAN_CMD (0x80) */
1695 static void iwl4965_rx_reply_scan(struct iwl_priv
*priv
,
1696 struct iwl_rx_mem_buffer
*rxb
)
1698 #ifdef CONFIG_IWLWIFI_DEBUG
1699 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1700 struct iwl4965_scanreq_notification
*notif
=
1701 (struct iwl4965_scanreq_notification
*)pkt
->u
.raw
;
1703 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
1707 /* Service SCAN_START_NOTIFICATION (0x82) */
1708 static void iwl4965_rx_scan_start_notif(struct iwl_priv
*priv
,
1709 struct iwl_rx_mem_buffer
*rxb
)
1711 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1712 struct iwl4965_scanstart_notification
*notif
=
1713 (struct iwl4965_scanstart_notification
*)pkt
->u
.raw
;
1714 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
1715 IWL_DEBUG_SCAN("Scan start: "
1717 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
1719 notif
->band
? "bg" : "a",
1721 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
1724 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
1725 static void iwl4965_rx_scan_results_notif(struct iwl_priv
*priv
,
1726 struct iwl_rx_mem_buffer
*rxb
)
1728 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1729 struct iwl4965_scanresults_notification
*notif
=
1730 (struct iwl4965_scanresults_notification
*)pkt
->u
.raw
;
1732 IWL_DEBUG_SCAN("Scan ch.res: "
1734 "(TSF: 0x%08X:%08X) - %d "
1735 "elapsed=%lu usec (%dms since last)\n",
1737 notif
->band
? "bg" : "a",
1738 le32_to_cpu(notif
->tsf_high
),
1739 le32_to_cpu(notif
->tsf_low
),
1740 le32_to_cpu(notif
->statistics
[0]),
1741 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
1742 jiffies_to_msecs(elapsed_jiffies
1743 (priv
->last_scan_jiffies
, jiffies
)));
1745 priv
->last_scan_jiffies
= jiffies
;
1746 priv
->next_scan_jiffies
= 0;
1749 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
1750 static void iwl4965_rx_scan_complete_notif(struct iwl_priv
*priv
,
1751 struct iwl_rx_mem_buffer
*rxb
)
1753 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1754 struct iwl4965_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
1756 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
1757 scan_notif
->scanned_channels
,
1758 scan_notif
->tsf_low
,
1759 scan_notif
->tsf_high
, scan_notif
->status
);
1761 /* The HW is no longer scanning */
1762 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
1764 /* The scan completion notification came in, so kill that timer... */
1765 cancel_delayed_work(&priv
->scan_check
);
1767 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
1768 (priv
->scan_bands
== 2) ? "2.4" : "5.2",
1769 jiffies_to_msecs(elapsed_jiffies
1770 (priv
->scan_pass_start
, jiffies
)));
1772 /* Remove this scanned band from the list
1773 * of pending bands to scan */
1776 /* If a request to abort was given, or the scan did not succeed
1777 * then we reset the scan state machine and terminate,
1778 * re-queuing another scan if one has been requested */
1779 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
1780 IWL_DEBUG_INFO("Aborted scan completed.\n");
1781 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1783 /* If there are more bands on this scan pass reschedule */
1784 if (priv
->scan_bands
> 0)
1788 priv
->last_scan_jiffies
= jiffies
;
1789 priv
->next_scan_jiffies
= 0;
1790 IWL_DEBUG_INFO("Setting scan to off\n");
1792 clear_bit(STATUS_SCANNING
, &priv
->status
);
1794 IWL_DEBUG_INFO("Scan took %dms\n",
1795 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
1797 queue_work(priv
->workqueue
, &priv
->scan_completed
);
1802 priv
->scan_pass_start
= jiffies
;
1803 queue_work(priv
->workqueue
, &priv
->request_scan
);
1806 /* Handle notification from uCode that card's power state is changing
1807 * due to software, hardware, or critical temperature RFKILL */
1808 static void iwl4965_rx_card_state_notif(struct iwl_priv
*priv
,
1809 struct iwl_rx_mem_buffer
*rxb
)
1811 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1812 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
1813 unsigned long status
= priv
->status
;
1815 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
1816 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
1817 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
1819 if (flags
& (SW_CARD_DISABLED
| HW_CARD_DISABLED
|
1820 RF_CARD_DISABLED
)) {
1822 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
1823 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
1825 if (!iwl_grab_nic_access(priv
)) {
1827 priv
, HBUS_TARG_MBX_C
,
1828 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
1830 iwl_release_nic_access(priv
);
1833 if (!(flags
& RXON_CARD_DISABLED
)) {
1834 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
1835 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
1836 if (!iwl_grab_nic_access(priv
)) {
1838 priv
, HBUS_TARG_MBX_C
,
1839 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
1841 iwl_release_nic_access(priv
);
1845 if (flags
& RF_CARD_DISABLED
) {
1846 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
1847 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
1848 iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
1849 if (!iwl_grab_nic_access(priv
))
1850 iwl_release_nic_access(priv
);
1854 if (flags
& HW_CARD_DISABLED
)
1855 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1857 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1860 if (flags
& SW_CARD_DISABLED
)
1861 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
1863 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
1865 if (!(flags
& RXON_CARD_DISABLED
))
1866 iwl4965_scan_cancel(priv
);
1868 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
1869 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
1870 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
1871 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
1872 queue_work(priv
->workqueue
, &priv
->rf_kill
);
1874 wake_up_interruptible(&priv
->wait_command_queue
);
1877 /* Cache phy data (Rx signal strength, etc) for HT frame (REPLY_RX_PHY_CMD).
1878 * This will be used later in iwl4965_rx_reply_rx() for REPLY_RX_MPDU_CMD. */
1879 static void iwl4965_rx_reply_rx_phy(struct iwl_priv
*priv
,
1880 struct iwl_rx_mem_buffer
*rxb
)
1882 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1883 priv
->last_phy_res
[0] = 1;
1884 memcpy(&priv
->last_phy_res
[1], &(pkt
->u
.raw
[0]),
1885 sizeof(struct iwl4965_rx_phy_res
));
1889 * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
1891 * Setup the RX handlers for each of the reply types sent from the uCode
1894 * This function chains into the hardware specific files for them to setup
1895 * any hardware specific handlers as well.
1897 static void iwl4965_setup_rx_handlers(struct iwl_priv
*priv
)
1899 priv
->rx_handlers
[REPLY_ALIVE
] = iwl_rx_reply_alive
;
1900 priv
->rx_handlers
[REPLY_ERROR
] = iwl4965_rx_reply_error
;
1901 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl4965_rx_csa
;
1902 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
1903 iwl4965_rx_spectrum_measure_notif
;
1904 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl4965_rx_pm_sleep_notif
;
1905 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
1906 iwl4965_rx_pm_debug_statistics_notif
;
1907 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl4965_rx_beacon_notif
;
1910 * The same handler is used for both the REPLY to a discrete
1911 * statistics request from the host as well as for the periodic
1912 * statistics notifications (after received beacons) from the uCode.
1914 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl4965_hw_rx_statistics
;
1915 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl4965_hw_rx_statistics
;
1917 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl4965_rx_reply_scan
;
1918 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl4965_rx_scan_start_notif
;
1919 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
1920 iwl4965_rx_scan_results_notif
;
1921 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
1922 iwl4965_rx_scan_complete_notif
;
1923 /* status change handler */
1924 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl4965_rx_card_state_notif
;
1926 priv
->rx_handlers
[MISSED_BEACONS_NOTIFICATION
] =
1927 iwl_rx_missed_beacon_notif
;
1929 priv
->rx_handlers
[REPLY_RX_PHY_CMD
] = iwl4965_rx_reply_rx_phy
;
1930 priv
->rx_handlers
[REPLY_RX_MPDU_CMD
] = iwl4965_rx_reply_rx
;
1931 /* Set up hardware specific Rx handlers */
1932 priv
->cfg
->ops
->lib
->rx_handler_setup(priv
);
1936 * this should be called while priv->lock is locked
1938 static void __iwl_rx_replenish(struct iwl_priv
*priv
)
1940 iwl_rx_allocate(priv
);
1941 iwl_rx_queue_restock(priv
);
1946 * iwl_rx_handle - Main entry function for receiving responses from uCode
1948 * Uses the priv->rx_handlers callback function array to invoke
1949 * the appropriate handlers, including command responses,
1950 * frame-received notifications, and other notifications.
1952 void iwl_rx_handle(struct iwl_priv
*priv
)
1954 struct iwl_rx_mem_buffer
*rxb
;
1955 struct iwl_rx_packet
*pkt
;
1956 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
1959 unsigned long flags
;
1963 /* uCode's read index (stored in shared DRAM) indicates the last Rx
1964 * buffer that the driver may process (last buffer filled by ucode). */
1965 r
= priv
->cfg
->ops
->lib
->shared_mem_rx_idx(priv
);
1968 /* Rx interrupt, but nothing sent from uCode */
1970 IWL_DEBUG(IWL_DL_RX
, "r = %d, i = %d\n", r
, i
);
1972 if (iwl_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
1976 rxb
= rxq
->queue
[i
];
1978 /* If an RXB doesn't have a Rx queue slot associated with it,
1979 * then a bug has been introduced in the queue refilling
1980 * routines -- catch it here */
1981 BUG_ON(rxb
== NULL
);
1983 rxq
->queue
[i
] = NULL
;
1985 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
1986 priv
->hw_params
.rx_buf_size
,
1987 PCI_DMA_FROMDEVICE
);
1988 pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1990 /* Reclaim a command buffer only if this packet is a response
1991 * to a (driver-originated) command.
1992 * If the packet (e.g. Rx frame) originated from uCode,
1993 * there is no command buffer to reclaim.
1994 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
1995 * but apparently a few don't get set; catch them here. */
1996 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
1997 (pkt
->hdr
.cmd
!= REPLY_RX_PHY_CMD
) &&
1998 (pkt
->hdr
.cmd
!= REPLY_RX
) &&
1999 (pkt
->hdr
.cmd
!= REPLY_COMPRESSED_BA
) &&
2000 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
2001 (pkt
->hdr
.cmd
!= REPLY_TX
);
2003 /* Based on type of command response or notification,
2004 * handle those that need handling via function in
2005 * rx_handlers table. See iwl4965_setup_rx_handlers() */
2006 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
2007 IWL_DEBUG(IWL_DL_RX
, "r = %d, i = %d, %s, 0x%02x\n", r
,
2008 i
, get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
2009 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
2011 /* No handling needed */
2012 IWL_DEBUG(IWL_DL_RX
,
2013 "r %d i %d No handler needed for %s, 0x%02x\n",
2014 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
2019 /* Invoke any callbacks, transfer the skb to caller, and
2020 * fire off the (possibly) blocking iwl_send_cmd()
2021 * as we reclaim the driver command queue */
2022 if (rxb
&& rxb
->skb
)
2023 iwl_tx_cmd_complete(priv
, rxb
);
2025 IWL_WARNING("Claim null rxb?\n");
2028 /* For now we just don't re-use anything. We can tweak this
2029 * later to try and re-use notification packets and SKBs that
2030 * fail to Rx correctly */
2031 if (rxb
->skb
!= NULL
) {
2032 priv
->alloc_rxb_skb
--;
2033 dev_kfree_skb_any(rxb
->skb
);
2037 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
2038 priv
->hw_params
.rx_buf_size
,
2039 PCI_DMA_FROMDEVICE
);
2040 spin_lock_irqsave(&rxq
->lock
, flags
);
2041 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
2042 spin_unlock_irqrestore(&rxq
->lock
, flags
);
2043 i
= (i
+ 1) & RX_QUEUE_MASK
;
2044 /* If there are a lot of unused frames,
2045 * restock the Rx queue so ucode wont assert. */
2050 __iwl_rx_replenish(priv
);
2056 /* Backtrack one entry */
2058 iwl_rx_queue_restock(priv
);
2060 /* Convert linear signal-to-noise ratio into dB */
2061 static u8 ratio2dB
[100] = {
2062 /* 0 1 2 3 4 5 6 7 8 9 */
2063 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
2064 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
2065 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
2066 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
2067 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
2068 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
2069 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
2070 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
2071 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
2072 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
2075 /* Calculates a relative dB value from a ratio of linear
2076 * (i.e. not dB) signal levels.
2077 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
2078 int iwl4965_calc_db_from_ratio(int sig_ratio
)
2080 /* 1000:1 or higher just report as 60 dB */
2081 if (sig_ratio
>= 1000)
2084 /* 100:1 or higher, divide by 10 and use table,
2085 * add 20 dB to make up for divide by 10 */
2086 if (sig_ratio
>= 100)
2087 return (20 + (int)ratio2dB
[sig_ratio
/10]);
2089 /* We shouldn't see this */
2093 /* Use table for ratios 1:1 - 99:1 */
2094 return (int)ratio2dB
[sig_ratio
];
2097 #define PERFECT_RSSI (-20) /* dBm */
2098 #define WORST_RSSI (-95) /* dBm */
2099 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
2101 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
2102 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
2103 * about formulas used below. */
2104 int iwl4965_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
2107 int degradation
= PERFECT_RSSI
- rssi_dbm
;
2109 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
2110 * as indicator; formula is (signal dbm - noise dbm).
2111 * SNR at or above 40 is a great signal (100%).
2112 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
2113 * Weakest usable signal is usually 10 - 15 dB SNR. */
2115 if (rssi_dbm
- noise_dbm
>= 40)
2117 else if (rssi_dbm
< noise_dbm
)
2119 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
2121 /* Else use just the signal level.
2122 * This formula is a least squares fit of data points collected and
2123 * compared with a reference system that had a percentage (%) display
2124 * for signal quality. */
2126 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
2127 (15 * RSSI_RANGE
+ 62 * degradation
)) /
2128 (RSSI_RANGE
* RSSI_RANGE
);
2132 else if (sig_qual
< 1)
2138 #ifdef CONFIG_IWLWIFI_DEBUG
2139 static void iwl4965_print_rx_config_cmd(struct iwl_priv
*priv
)
2141 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
2142 DECLARE_MAC_BUF(mac
);
2144 IWL_DEBUG_RADIO("RX CONFIG:\n");
2145 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
2146 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
2147 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
2148 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
2149 le32_to_cpu(rxon
->filter_flags
));
2150 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
2151 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
2152 rxon
->ofdm_basic_rates
);
2153 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
2154 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
2155 print_mac(mac
, rxon
->node_addr
));
2156 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
2157 print_mac(mac
, rxon
->bssid_addr
));
2158 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
2162 static void iwl4965_enable_interrupts(struct iwl_priv
*priv
)
2164 IWL_DEBUG_ISR("Enabling interrupts\n");
2165 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
2166 iwl_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
2169 /* call this function to flush any scheduled tasklet */
2170 static inline void iwl_synchronize_irq(struct iwl_priv
*priv
)
2172 /* wait to make sure we flush pedding tasklet*/
2173 synchronize_irq(priv
->pci_dev
->irq
);
2174 tasklet_kill(&priv
->irq_tasklet
);
2177 static inline void iwl4965_disable_interrupts(struct iwl_priv
*priv
)
2179 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
2181 /* disable interrupts from uCode/NIC to host */
2182 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
2184 /* acknowledge/clear/reset any interrupts still pending
2185 * from uCode or flow handler (Rx/Tx DMA) */
2186 iwl_write32(priv
, CSR_INT
, 0xffffffff);
2187 iwl_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
2188 IWL_DEBUG_ISR("Disabled interrupts\n");
2193 * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
2195 static void iwl4965_irq_handle_error(struct iwl_priv
*priv
)
2197 /* Set the FW error flag -- cleared on iwl4965_down */
2198 set_bit(STATUS_FW_ERROR
, &priv
->status
);
2200 /* Cancel currently queued command. */
2201 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
2203 #ifdef CONFIG_IWLWIFI_DEBUG
2204 if (priv
->debug_level
& IWL_DL_FW_ERRORS
) {
2205 iwl_dump_nic_error_log(priv
);
2206 iwl_dump_nic_event_log(priv
);
2207 iwl4965_print_rx_config_cmd(priv
);
2211 wake_up_interruptible(&priv
->wait_command_queue
);
2213 /* Keep the restart process from trying to send host
2214 * commands by clearing the INIT status bit */
2215 clear_bit(STATUS_READY
, &priv
->status
);
2217 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
2218 IWL_DEBUG(IWL_DL_FW_ERRORS
,
2219 "Restarting adapter due to uCode error.\n");
2221 if (iwl_is_associated(priv
)) {
2222 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
2223 sizeof(priv
->recovery_rxon
));
2224 priv
->error_recovering
= 1;
2226 if (priv
->cfg
->mod_params
->restart_fw
)
2227 queue_work(priv
->workqueue
, &priv
->restart
);
2231 static void iwl4965_error_recovery(struct iwl_priv
*priv
)
2233 unsigned long flags
;
2235 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
2236 sizeof(priv
->staging_rxon
));
2237 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2238 iwl4965_commit_rxon(priv
);
2240 iwl_rxon_add_station(priv
, priv
->bssid
, 1);
2242 spin_lock_irqsave(&priv
->lock
, flags
);
2243 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
2244 priv
->error_recovering
= 0;
2245 spin_unlock_irqrestore(&priv
->lock
, flags
);
2248 static void iwl4965_irq_tasklet(struct iwl_priv
*priv
)
2250 u32 inta
, handled
= 0;
2252 unsigned long flags
;
2253 #ifdef CONFIG_IWLWIFI_DEBUG
2257 spin_lock_irqsave(&priv
->lock
, flags
);
2259 /* Ack/clear/reset pending uCode interrupts.
2260 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
2261 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
2262 inta
= iwl_read32(priv
, CSR_INT
);
2263 iwl_write32(priv
, CSR_INT
, inta
);
2265 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
2266 * Any new interrupts that happen after this, either while we're
2267 * in this tasklet, or later, will show up in next ISR/tasklet. */
2268 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
2269 iwl_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
2271 #ifdef CONFIG_IWLWIFI_DEBUG
2272 if (priv
->debug_level
& IWL_DL_ISR
) {
2273 /* just for debug */
2274 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
2275 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
2276 inta
, inta_mask
, inta_fh
);
2280 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
2281 * atomic, make sure that inta covers all the interrupts that
2282 * we've discovered, even if FH interrupt came in just after
2283 * reading CSR_INT. */
2284 if (inta_fh
& CSR49_FH_INT_RX_MASK
)
2285 inta
|= CSR_INT_BIT_FH_RX
;
2286 if (inta_fh
& CSR49_FH_INT_TX_MASK
)
2287 inta
|= CSR_INT_BIT_FH_TX
;
2289 /* Now service all interrupt bits discovered above. */
2290 if (inta
& CSR_INT_BIT_HW_ERR
) {
2291 IWL_ERROR("Microcode HW error detected. Restarting.\n");
2293 /* Tell the device to stop sending interrupts */
2294 iwl4965_disable_interrupts(priv
);
2296 iwl4965_irq_handle_error(priv
);
2298 handled
|= CSR_INT_BIT_HW_ERR
;
2300 spin_unlock_irqrestore(&priv
->lock
, flags
);
2305 #ifdef CONFIG_IWLWIFI_DEBUG
2306 if (priv
->debug_level
& (IWL_DL_ISR
)) {
2307 /* NIC fires this, but we don't use it, redundant with WAKEUP */
2308 if (inta
& CSR_INT_BIT_SCD
)
2309 IWL_DEBUG_ISR("Scheduler finished to transmit "
2310 "the frame/frames.\n");
2312 /* Alive notification via Rx interrupt will do the real work */
2313 if (inta
& CSR_INT_BIT_ALIVE
)
2314 IWL_DEBUG_ISR("Alive interrupt\n");
2317 /* Safely ignore these bits for debug checks below */
2318 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
2320 /* HW RF KILL switch toggled */
2321 if (inta
& CSR_INT_BIT_RF_KILL
) {
2323 if (!(iwl_read32(priv
, CSR_GP_CNTRL
) &
2324 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
2327 IWL_DEBUG(IWL_DL_RF_KILL
, "RF_KILL bit toggled to %s.\n",
2328 hw_rf_kill
? "disable radio":"enable radio");
2330 /* Queue restart only if RF_KILL switch was set to "kill"
2331 * when we loaded driver, and is now set to "enable".
2332 * After we're Alive, RF_KILL gets handled by
2333 * iwl4965_rx_card_state_notif() */
2334 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
2335 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2336 queue_work(priv
->workqueue
, &priv
->restart
);
2339 handled
|= CSR_INT_BIT_RF_KILL
;
2342 /* Chip got too hot and stopped itself */
2343 if (inta
& CSR_INT_BIT_CT_KILL
) {
2344 IWL_ERROR("Microcode CT kill error detected.\n");
2345 handled
|= CSR_INT_BIT_CT_KILL
;
2348 /* Error detected by uCode */
2349 if (inta
& CSR_INT_BIT_SW_ERR
) {
2350 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
2352 iwl4965_irq_handle_error(priv
);
2353 handled
|= CSR_INT_BIT_SW_ERR
;
2356 /* uCode wakes up after power-down sleep */
2357 if (inta
& CSR_INT_BIT_WAKEUP
) {
2358 IWL_DEBUG_ISR("Wakeup interrupt\n");
2359 iwl_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
2360 iwl_txq_update_write_ptr(priv
, &priv
->txq
[0]);
2361 iwl_txq_update_write_ptr(priv
, &priv
->txq
[1]);
2362 iwl_txq_update_write_ptr(priv
, &priv
->txq
[2]);
2363 iwl_txq_update_write_ptr(priv
, &priv
->txq
[3]);
2364 iwl_txq_update_write_ptr(priv
, &priv
->txq
[4]);
2365 iwl_txq_update_write_ptr(priv
, &priv
->txq
[5]);
2367 handled
|= CSR_INT_BIT_WAKEUP
;
2370 /* All uCode command responses, including Tx command responses,
2371 * Rx "responses" (frame-received notification), and other
2372 * notifications from uCode come through here*/
2373 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
2374 iwl_rx_handle(priv
);
2375 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
2378 if (inta
& CSR_INT_BIT_FH_TX
) {
2379 IWL_DEBUG_ISR("Tx interrupt\n");
2380 handled
|= CSR_INT_BIT_FH_TX
;
2381 /* FH finished to write, send event */
2382 priv
->ucode_write_complete
= 1;
2383 wake_up_interruptible(&priv
->wait_command_queue
);
2386 if (inta
& ~handled
)
2387 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
2389 if (inta
& ~CSR_INI_SET_MASK
) {
2390 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
2391 inta
& ~CSR_INI_SET_MASK
);
2392 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
2395 /* Re-enable all interrupts */
2396 /* only Re-enable if diabled by irq */
2397 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
2398 iwl4965_enable_interrupts(priv
);
2400 #ifdef CONFIG_IWLWIFI_DEBUG
2401 if (priv
->debug_level
& (IWL_DL_ISR
)) {
2402 inta
= iwl_read32(priv
, CSR_INT
);
2403 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
2404 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
2405 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
2406 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
2409 spin_unlock_irqrestore(&priv
->lock
, flags
);
2412 static irqreturn_t
iwl4965_isr(int irq
, void *data
)
2414 struct iwl_priv
*priv
= data
;
2415 u32 inta
, inta_mask
;
2420 spin_lock(&priv
->lock
);
2422 /* Disable (but don't clear!) interrupts here to avoid
2423 * back-to-back ISRs and sporadic interrupts from our NIC.
2424 * If we have something to service, the tasklet will re-enable ints.
2425 * If we *don't* have something, we'll re-enable before leaving here. */
2426 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
2427 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
2429 /* Discover which interrupts are active/pending */
2430 inta
= iwl_read32(priv
, CSR_INT
);
2431 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
2433 /* Ignore interrupt if there's nothing in NIC to service.
2434 * This may be due to IRQ shared with another device,
2435 * or due to sporadic interrupts thrown from our NIC. */
2436 if (!inta
&& !inta_fh
) {
2437 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
2441 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
2442 /* Hardware disappeared. It might have already raised
2444 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
2448 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
2449 inta
, inta_mask
, inta_fh
);
2451 inta
&= ~CSR_INT_BIT_SCD
;
2453 /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
2454 if (likely(inta
|| inta_fh
))
2455 tasklet_schedule(&priv
->irq_tasklet
);
2458 spin_unlock(&priv
->lock
);
2462 /* re-enable interrupts here since we don't have anything to service. */
2463 /* only Re-enable if diabled by irq */
2464 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
2465 iwl4965_enable_interrupts(priv
);
2466 spin_unlock(&priv
->lock
);
2470 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
2471 * sending probe req. This should be set long enough to hear probe responses
2472 * from more than one AP. */
2473 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
2474 #define IWL_ACTIVE_DWELL_TIME_52 (10)
2476 /* For faster active scanning, scan will move to the next channel if fewer than
2477 * PLCP_QUIET_THRESH packets are heard on this channel within
2478 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
2479 * time if it's a quiet channel (nothing responded to our probe, and there's
2480 * no other traffic).
2481 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
2482 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
2483 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
2485 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
2486 * Must be set longer than active dwell time.
2487 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
2488 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
2489 #define IWL_PASSIVE_DWELL_TIME_52 (10)
2490 #define IWL_PASSIVE_DWELL_BASE (100)
2491 #define IWL_CHANNEL_TUNE_TIME 5
2493 static inline u16
iwl4965_get_active_dwell_time(struct iwl_priv
*priv
,
2494 enum ieee80211_band band
)
2496 if (band
== IEEE80211_BAND_5GHZ
)
2497 return IWL_ACTIVE_DWELL_TIME_52
;
2499 return IWL_ACTIVE_DWELL_TIME_24
;
2502 static u16
iwl4965_get_passive_dwell_time(struct iwl_priv
*priv
,
2503 enum ieee80211_band band
)
2505 u16 active
= iwl4965_get_active_dwell_time(priv
, band
);
2506 u16 passive
= (band
!= IEEE80211_BAND_5GHZ
) ?
2507 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
2508 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
2510 if (iwl_is_associated(priv
)) {
2511 /* If we're associated, we clamp the maximum passive
2512 * dwell time to be 98% of the beacon interval (minus
2513 * 2 * channel tune time) */
2514 passive
= priv
->beacon_int
;
2515 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
2516 passive
= IWL_PASSIVE_DWELL_BASE
;
2517 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
2520 if (passive
<= active
)
2521 passive
= active
+ 1;
2526 static int iwl4965_get_channels_for_scan(struct iwl_priv
*priv
,
2527 enum ieee80211_band band
,
2528 u8 is_active
, u8 direct_mask
,
2529 struct iwl4965_scan_channel
*scan_ch
)
2531 const struct ieee80211_channel
*channels
= NULL
;
2532 const struct ieee80211_supported_band
*sband
;
2533 const struct iwl_channel_info
*ch_info
;
2534 u16 passive_dwell
= 0;
2535 u16 active_dwell
= 0;
2538 sband
= iwl_get_hw_mode(priv
, band
);
2542 channels
= sband
->channels
;
2544 active_dwell
= iwl4965_get_active_dwell_time(priv
, band
);
2545 passive_dwell
= iwl4965_get_passive_dwell_time(priv
, band
);
2547 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
2548 if (channels
[i
].flags
& IEEE80211_CHAN_DISABLED
)
2551 scan_ch
->channel
= ieee80211_frequency_to_channel(channels
[i
].center_freq
);
2553 ch_info
= iwl_get_channel_info(priv
, band
,
2555 if (!is_channel_valid(ch_info
)) {
2556 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
2561 if (!is_active
|| is_channel_passive(ch_info
) ||
2562 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
))
2563 scan_ch
->type
= 0; /* passive */
2565 scan_ch
->type
= 1; /* active */
2567 if (scan_ch
->type
& 1)
2568 scan_ch
->type
|= (direct_mask
<< 1);
2570 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
2571 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
2573 /* Set txpower levels to defaults */
2574 scan_ch
->tpc
.dsp_atten
= 110;
2575 /* scan_pwr_info->tpc.dsp_atten; */
2577 /*scan_pwr_info->tpc.tx_gain; */
2578 if (band
== IEEE80211_BAND_5GHZ
)
2579 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
2581 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
2582 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
2584 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
2588 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
2590 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
2591 (scan_ch
->type
& 1) ?
2592 active_dwell
: passive_dwell
);
2598 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
2602 /******************************************************************************
2604 * uCode download functions
2606 ******************************************************************************/
2608 static void iwl4965_dealloc_ucode_pci(struct iwl_priv
*priv
)
2610 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
2611 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
2612 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
2613 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
2614 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
2615 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
2618 static void iwl4965_nic_start(struct iwl_priv
*priv
)
2620 /* Remove all resets to allow NIC to operate */
2621 iwl_write32(priv
, CSR_RESET
, 0);
2626 * iwl4965_read_ucode - Read uCode images from disk file.
2628 * Copy into buffers for card to fetch via bus-mastering
2630 static int iwl4965_read_ucode(struct iwl_priv
*priv
)
2632 struct iwl4965_ucode
*ucode
;
2634 const struct firmware
*ucode_raw
;
2635 const char *name
= priv
->cfg
->fw_name
;
2638 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
2640 /* Ask kernel firmware_class module to get the boot firmware off disk.
2641 * request_firmware() is synchronous, file is in memory on return. */
2642 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
2644 IWL_ERROR("%s firmware file req failed: Reason %d\n",
2649 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
2650 name
, ucode_raw
->size
);
2652 /* Make sure that we got at least our header! */
2653 if (ucode_raw
->size
< sizeof(*ucode
)) {
2654 IWL_ERROR("File size way too small!\n");
2659 /* Data from ucode file: header followed by uCode images */
2660 ucode
= (void *)ucode_raw
->data
;
2662 ver
= le32_to_cpu(ucode
->ver
);
2663 inst_size
= le32_to_cpu(ucode
->inst_size
);
2664 data_size
= le32_to_cpu(ucode
->data_size
);
2665 init_size
= le32_to_cpu(ucode
->init_size
);
2666 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
2667 boot_size
= le32_to_cpu(ucode
->boot_size
);
2669 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
2670 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
2672 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
2674 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
2676 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
2678 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
2681 /* Verify size of file vs. image size info in file's header */
2682 if (ucode_raw
->size
< sizeof(*ucode
) +
2683 inst_size
+ data_size
+ init_size
+
2684 init_data_size
+ boot_size
) {
2686 IWL_DEBUG_INFO("uCode file size %d too small\n",
2687 (int)ucode_raw
->size
);
2692 /* Verify that uCode images will fit in card's SRAM */
2693 if (inst_size
> priv
->hw_params
.max_inst_size
) {
2694 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
2700 if (data_size
> priv
->hw_params
.max_data_size
) {
2701 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
2706 if (init_size
> priv
->hw_params
.max_inst_size
) {
2708 ("uCode init instr len %d too large to fit in\n",
2713 if (init_data_size
> priv
->hw_params
.max_data_size
) {
2715 ("uCode init data len %d too large to fit in\n",
2720 if (boot_size
> priv
->hw_params
.max_bsm_size
) {
2722 ("uCode boot instr len %d too large to fit in\n",
2728 /* Allocate ucode buffers for card's bus-master loading ... */
2730 /* Runtime instructions and 2 copies of data:
2731 * 1) unmodified from disk
2732 * 2) backup cache for save/restore during power-downs */
2733 priv
->ucode_code
.len
= inst_size
;
2734 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
2736 priv
->ucode_data
.len
= data_size
;
2737 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
2739 priv
->ucode_data_backup
.len
= data_size
;
2740 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
2742 /* Initialization instructions and data */
2743 if (init_size
&& init_data_size
) {
2744 priv
->ucode_init
.len
= init_size
;
2745 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
2747 priv
->ucode_init_data
.len
= init_data_size
;
2748 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
2750 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
2754 /* Bootstrap (instructions only, no data) */
2756 priv
->ucode_boot
.len
= boot_size
;
2757 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
2759 if (!priv
->ucode_boot
.v_addr
)
2763 /* Copy images into buffers for card's bus-master reads ... */
2765 /* Runtime instructions (first block of data in file) */
2766 src
= &ucode
->data
[0];
2767 len
= priv
->ucode_code
.len
;
2768 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
2769 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
2770 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
2771 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
2773 /* Runtime data (2nd block)
2774 * NOTE: Copy into backup buffer will be done in iwl4965_up() */
2775 src
= &ucode
->data
[inst_size
];
2776 len
= priv
->ucode_data
.len
;
2777 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
2778 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
2779 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
2781 /* Initialization instructions (3rd block) */
2783 src
= &ucode
->data
[inst_size
+ data_size
];
2784 len
= priv
->ucode_init
.len
;
2785 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
2787 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
2790 /* Initialization data (4th block) */
2791 if (init_data_size
) {
2792 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
2793 len
= priv
->ucode_init_data
.len
;
2794 IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
2796 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
2799 /* Bootstrap instructions (5th block) */
2800 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
2801 len
= priv
->ucode_boot
.len
;
2802 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len
);
2803 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
2805 /* We have our copies now, allow OS release its copies */
2806 release_firmware(ucode_raw
);
2810 IWL_ERROR("failed to allocate pci memory\n");
2812 iwl4965_dealloc_ucode_pci(priv
);
2815 release_firmware(ucode_raw
);
2822 * iwl_alive_start - called after REPLY_ALIVE notification received
2823 * from protocol/runtime uCode (initialization uCode's
2824 * Alive gets handled by iwl_init_alive_start()).
2826 static void iwl_alive_start(struct iwl_priv
*priv
)
2830 IWL_DEBUG_INFO("Runtime Alive received.\n");
2832 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
2833 /* We had an error bringing up the hardware, so take it
2834 * all the way back down so we can try again */
2835 IWL_DEBUG_INFO("Alive failed.\n");
2839 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
2840 * This is a paranoid check, because we would not have gotten the
2841 * "runtime" alive if code weren't properly loaded. */
2842 if (iwl_verify_ucode(priv
)) {
2843 /* Runtime instruction load was bad;
2844 * take it all the way back down so we can try again */
2845 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
2849 iwlcore_clear_stations_table(priv
);
2850 ret
= priv
->cfg
->ops
->lib
->alive_notify(priv
);
2852 IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
2857 /* After the ALIVE response, we can send host commands to 4965 uCode */
2858 set_bit(STATUS_ALIVE
, &priv
->status
);
2860 /* Clear out the uCode error bit if it is set */
2861 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
2863 if (iwl_is_rfkill(priv
))
2866 ieee80211_wake_queues(priv
->hw
);
2868 priv
->active_rate
= priv
->rates_mask
;
2869 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
2871 if (iwl_is_associated(priv
)) {
2872 struct iwl_rxon_cmd
*active_rxon
=
2873 (struct iwl_rxon_cmd
*)&priv
->active_rxon
;
2875 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
2876 sizeof(priv
->staging_rxon
));
2877 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2879 /* Initialize our rx_config data */
2880 iwl4965_connection_init_rx_config(priv
);
2881 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2884 /* Configure Bluetooth device coexistence support */
2885 iwl4965_send_bt_config(priv
);
2887 iwl_reset_run_time_calib(priv
);
2889 /* Configure the adapter for unassociated operation */
2890 iwl4965_commit_rxon(priv
);
2892 /* At this point, the NIC is initialized and operational */
2893 iwl4965_rf_kill_ct_config(priv
);
2895 iwl_leds_register(priv
);
2897 IWL_DEBUG_INFO("ALIVE processing complete.\n");
2898 set_bit(STATUS_READY
, &priv
->status
);
2899 wake_up_interruptible(&priv
->wait_command_queue
);
2901 if (priv
->error_recovering
)
2902 iwl4965_error_recovery(priv
);
2904 iwlcore_low_level_notify(priv
, IWLCORE_START_EVT
);
2905 ieee80211_notify_mac(priv
->hw
, IEEE80211_NOTIFY_RE_ASSOC
);
2909 queue_work(priv
->workqueue
, &priv
->restart
);
2912 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
);
2914 static void __iwl4965_down(struct iwl_priv
*priv
)
2916 unsigned long flags
;
2917 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2919 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
2922 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2924 iwl_leds_unregister(priv
);
2926 iwlcore_low_level_notify(priv
, IWLCORE_STOP_EVT
);
2928 iwlcore_clear_stations_table(priv
);
2930 /* Unblock any waiting calls */
2931 wake_up_interruptible_all(&priv
->wait_command_queue
);
2933 /* Wipe out the EXIT_PENDING status bit if we are not actually
2934 * exiting the module */
2936 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2938 /* stop and reset the on-board processor */
2939 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
2941 /* tell the device to stop sending interrupts */
2942 spin_lock_irqsave(&priv
->lock
, flags
);
2943 iwl4965_disable_interrupts(priv
);
2944 spin_unlock_irqrestore(&priv
->lock
, flags
);
2945 iwl_synchronize_irq(priv
);
2947 if (priv
->mac80211_registered
)
2948 ieee80211_stop_queues(priv
->hw
);
2950 /* If we have not previously called iwl4965_init() then
2951 * clear all bits but the RF Kill and SUSPEND bits and return */
2952 if (!iwl_is_init(priv
)) {
2953 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
2955 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
2957 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
2958 STATUS_GEO_CONFIGURED
|
2959 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
2964 /* ...otherwise clear out all the status bits but the RF Kill and
2965 * SUSPEND bits and continue taking the NIC down. */
2966 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
2968 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
2970 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
2971 STATUS_GEO_CONFIGURED
|
2972 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
2974 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
2977 spin_lock_irqsave(&priv
->lock
, flags
);
2978 iwl_clear_bit(priv
, CSR_GP_CNTRL
,
2979 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
2980 spin_unlock_irqrestore(&priv
->lock
, flags
);
2982 iwl_txq_ctx_stop(priv
);
2985 spin_lock_irqsave(&priv
->lock
, flags
);
2986 if (!iwl_grab_nic_access(priv
)) {
2987 iwl_write_prph(priv
, APMG_CLK_DIS_REG
,
2988 APMG_CLK_VAL_DMA_CLK_RQT
);
2989 iwl_release_nic_access(priv
);
2991 spin_unlock_irqrestore(&priv
->lock
, flags
);
2995 /* FIXME: apm_ops.suspend(priv) */
2996 priv
->cfg
->ops
->lib
->apm_ops
.reset(priv
);
2997 priv
->cfg
->ops
->lib
->free_shared_mem(priv
);
3000 memset(&priv
->card_alive
, 0, sizeof(struct iwl_alive_resp
));
3002 if (priv
->ibss_beacon
)
3003 dev_kfree_skb(priv
->ibss_beacon
);
3004 priv
->ibss_beacon
= NULL
;
3006 /* clear out any free frames */
3007 iwl_clear_free_frames(priv
);
3010 static void iwl4965_down(struct iwl_priv
*priv
)
3012 mutex_lock(&priv
->mutex
);
3013 __iwl4965_down(priv
);
3014 mutex_unlock(&priv
->mutex
);
3016 iwl_cancel_deferred_work(priv
);
3019 #define MAX_HW_RESTARTS 5
3021 static int __iwl4965_up(struct iwl_priv
*priv
)
3026 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
3027 IWL_WARNING("Exit pending; will not bring the NIC up\n");
3031 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
3032 IWL_ERROR("ucode not available for device bringup\n");
3036 /* If platform's RF_KILL switch is NOT set to KILL */
3037 if (iwl_read32(priv
, CSR_GP_CNTRL
) &
3038 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
3039 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3041 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3042 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
3043 iwl_rfkill_set_hw_state(priv
);
3044 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
3049 iwl_rfkill_set_hw_state(priv
);
3050 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
3052 ret
= priv
->cfg
->ops
->lib
->alloc_shared_mem(priv
);
3054 IWL_ERROR("Unable to allocate shared memory\n");
3058 ret
= iwl_hw_nic_init(priv
);
3060 IWL_ERROR("Unable to init nic\n");
3064 /* make sure rfkill handshake bits are cleared */
3065 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3066 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
3067 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3069 /* clear (again), then enable host interrupts */
3070 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
3071 iwl4965_enable_interrupts(priv
);
3073 /* really make sure rfkill handshake bits are cleared */
3074 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3075 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
3077 /* Copy original ucode data image from disk into backup cache.
3078 * This will be used to initialize the on-board processor's
3079 * data SRAM for a clean start when the runtime program first loads. */
3080 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
3081 priv
->ucode_data
.len
);
3083 /* We return success when we resume from suspend and rf_kill is on. */
3084 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ||
3085 test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
3088 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
3090 iwlcore_clear_stations_table(priv
);
3092 /* load bootstrap state machine,
3093 * load bootstrap program into processor's memory,
3094 * prepare to load the "initialize" uCode */
3095 ret
= priv
->cfg
->ops
->lib
->load_ucode(priv
);
3098 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret
);
3102 /* start card; "initialize" will load runtime ucode */
3103 iwl4965_nic_start(priv
);
3105 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
3110 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3111 __iwl4965_down(priv
);
3112 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
3114 /* tried to restart and config the device for as long as our
3115 * patience could withstand */
3116 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
3121 /*****************************************************************************
3123 * Workqueue callbacks
3125 *****************************************************************************/
3127 static void iwl_bg_init_alive_start(struct work_struct
*data
)
3129 struct iwl_priv
*priv
=
3130 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
3132 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3135 mutex_lock(&priv
->mutex
);
3136 priv
->cfg
->ops
->lib
->init_alive_start(priv
);
3137 mutex_unlock(&priv
->mutex
);
3140 static void iwl_bg_alive_start(struct work_struct
*data
)
3142 struct iwl_priv
*priv
=
3143 container_of(data
, struct iwl_priv
, alive_start
.work
);
3145 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3148 mutex_lock(&priv
->mutex
);
3149 iwl_alive_start(priv
);
3150 mutex_unlock(&priv
->mutex
);
3153 static void iwl4965_bg_rf_kill(struct work_struct
*work
)
3155 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, rf_kill
);
3157 wake_up_interruptible(&priv
->wait_command_queue
);
3159 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3162 mutex_lock(&priv
->mutex
);
3164 if (!iwl_is_rfkill(priv
)) {
3165 IWL_DEBUG(IWL_DL_RF_KILL
,
3166 "HW and/or SW RF Kill no longer active, restarting "
3168 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3169 queue_work(priv
->workqueue
, &priv
->restart
);
3171 /* make sure mac80211 stop sending Tx frame */
3172 if (priv
->mac80211_registered
)
3173 ieee80211_stop_queues(priv
->hw
);
3175 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
3176 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
3177 "disabled by SW switch\n");
3179 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
3180 "Kill switch must be turned off for "
3181 "wireless networking to work.\n");
3183 iwl_rfkill_set_hw_state(priv
);
3185 mutex_unlock(&priv
->mutex
);
3188 static void iwl4965_bg_set_monitor(struct work_struct
*work
)
3190 struct iwl_priv
*priv
= container_of(work
,
3191 struct iwl_priv
, set_monitor
);
3193 IWL_DEBUG(IWL_DL_STATE
, "setting monitor mode\n");
3195 mutex_lock(&priv
->mutex
);
3197 if (!iwl_is_ready(priv
))
3198 IWL_DEBUG(IWL_DL_STATE
, "leave - not ready\n");
3200 if (iwl4965_set_mode(priv
, IEEE80211_IF_TYPE_MNTR
) != 0)
3201 IWL_ERROR("iwl4965_set_mode() failed\n");
3203 mutex_unlock(&priv
->mutex
);
3206 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
3208 static void iwl4965_bg_scan_check(struct work_struct
*data
)
3210 struct iwl_priv
*priv
=
3211 container_of(data
, struct iwl_priv
, scan_check
.work
);
3213 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3216 mutex_lock(&priv
->mutex
);
3217 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
3218 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3219 IWL_DEBUG(IWL_DL_SCAN
, "Scan completion watchdog resetting "
3221 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
3223 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3224 iwl4965_send_scan_abort(priv
);
3226 mutex_unlock(&priv
->mutex
);
3229 static void iwl4965_bg_request_scan(struct work_struct
*data
)
3231 struct iwl_priv
*priv
=
3232 container_of(data
, struct iwl_priv
, request_scan
);
3233 struct iwl_host_cmd cmd
= {
3234 .id
= REPLY_SCAN_CMD
,
3235 .len
= sizeof(struct iwl4965_scan_cmd
),
3236 .meta
.flags
= CMD_SIZE_HUGE
,
3238 struct iwl4965_scan_cmd
*scan
;
3239 struct ieee80211_conf
*conf
= NULL
;
3241 enum ieee80211_band band
;
3245 conf
= ieee80211_get_hw_conf(priv
->hw
);
3247 mutex_lock(&priv
->mutex
);
3249 if (!iwl_is_ready(priv
)) {
3250 IWL_WARNING("request scan called when driver not ready.\n");
3254 /* Make sure the scan wasn't cancelled before this queued work
3255 * was given the chance to run... */
3256 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
3259 /* This should never be called or scheduled if there is currently
3260 * a scan active in the hardware. */
3261 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
3262 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
3263 "Ignoring second request.\n");
3268 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
3269 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
3273 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3274 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
3278 if (iwl_is_rfkill(priv
)) {
3279 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
3283 if (!test_bit(STATUS_READY
, &priv
->status
)) {
3284 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
3288 if (!priv
->scan_bands
) {
3289 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
3294 priv
->scan
= kmalloc(sizeof(struct iwl4965_scan_cmd
) +
3295 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
3302 memset(scan
, 0, sizeof(struct iwl4965_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
3304 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
3305 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
3307 if (iwl_is_associated(priv
)) {
3310 u32 suspend_time
= 100;
3311 u32 scan_suspend_time
= 100;
3312 unsigned long flags
;
3314 IWL_DEBUG_INFO("Scanning while associated...\n");
3316 spin_lock_irqsave(&priv
->lock
, flags
);
3317 interval
= priv
->beacon_int
;
3318 spin_unlock_irqrestore(&priv
->lock
, flags
);
3320 scan
->suspend_time
= 0;
3321 scan
->max_out_time
= cpu_to_le32(200 * 1024);
3323 interval
= suspend_time
;
3325 extra
= (suspend_time
/ interval
) << 22;
3326 scan_suspend_time
= (extra
|
3327 ((suspend_time
% interval
) * 1024));
3328 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
3329 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
3330 scan_suspend_time
, interval
);
3333 /* We should add the ability for user to lock to PASSIVE ONLY */
3334 if (priv
->one_direct_scan
) {
3336 ("Kicking off one direct scan for '%s'\n",
3337 iwl4965_escape_essid(priv
->direct_ssid
,
3338 priv
->direct_ssid_len
));
3339 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
3340 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
3341 memcpy(scan
->direct_scan
[0].ssid
,
3342 priv
->direct_ssid
, priv
->direct_ssid_len
);
3344 } else if (!iwl_is_associated(priv
) && priv
->essid_len
) {
3346 ("Kicking off one direct scan for '%s' when not associated\n",
3347 iwl4965_escape_essid(priv
->essid
, priv
->essid_len
));
3348 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
3349 scan
->direct_scan
[0].len
= priv
->essid_len
;
3350 memcpy(scan
->direct_scan
[0].ssid
, priv
->essid
, priv
->essid_len
);
3353 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
3357 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
3358 scan
->tx_cmd
.sta_id
= priv
->hw_params
.bcast_sta_id
;
3359 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
3362 switch (priv
->scan_bands
) {
3364 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
3365 scan
->tx_cmd
.rate_n_flags
=
3366 iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP
,
3367 RATE_MCS_ANT_B_MSK
|RATE_MCS_CCK_MSK
);
3369 scan
->good_CRC_th
= 0;
3370 band
= IEEE80211_BAND_2GHZ
;
3374 scan
->tx_cmd
.rate_n_flags
=
3375 iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP
,
3376 RATE_MCS_ANT_B_MSK
);
3377 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
3378 band
= IEEE80211_BAND_5GHZ
;
3382 IWL_WARNING("Invalid scan band count\n");
3386 /* We don't build a direct scan probe request; the uCode will do
3387 * that based on the direct_mask added to each channel entry */
3388 cmd_len
= iwl4965_fill_probe_req(priv
, band
,
3389 (struct ieee80211_mgmt
*)scan
->data
,
3390 IWL_MAX_SCAN_SIZE
- sizeof(*scan
), 0);
3392 scan
->tx_cmd
.len
= cpu_to_le16(cmd_len
);
3393 /* select Rx chains */
3395 /* Force use of chains B and C (0x6) for scan Rx.
3396 * Avoid A (0x1) because of its off-channel reception on A-band.
3397 * MIMO is not used here, but value is required to make uCode happy. */
3398 scan
->rx_chain
= RXON_RX_CHAIN_DRIVER_FORCE_MSK
|
3399 cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS
) |
3400 (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS
) |
3401 (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS
));
3403 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
)
3404 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
3407 scan
->channel_count
=
3408 iwl4965_get_channels_for_scan(
3409 priv
, band
, 1, /* active */
3411 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
3413 scan
->channel_count
=
3414 iwl4965_get_channels_for_scan(
3415 priv
, band
, 0, /* passive */
3417 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
3419 scan
->filter_flags
|= (RXON_FILTER_ACCEPT_GRP_MSK
|
3420 RXON_FILTER_BCON_AWARE_MSK
);
3421 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
3422 scan
->channel_count
* sizeof(struct iwl4965_scan_channel
);
3424 scan
->len
= cpu_to_le16(cmd
.len
);
3426 set_bit(STATUS_SCAN_HW
, &priv
->status
);
3427 ret
= iwl_send_cmd_sync(priv
, &cmd
);
3431 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
3432 IWL_SCAN_CHECK_WATCHDOG
);
3434 mutex_unlock(&priv
->mutex
);
3438 /* inform mac80211 scan aborted */
3439 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3440 mutex_unlock(&priv
->mutex
);
3443 static void iwl_bg_run_time_calib_work(struct work_struct
*work
)
3445 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
3446 run_time_calib_work
);
3448 mutex_lock(&priv
->mutex
);
3450 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
3451 test_bit(STATUS_SCANNING
, &priv
->status
)) {
3452 mutex_unlock(&priv
->mutex
);
3456 if (priv
->start_calib
) {
3457 iwl_chain_noise_calibration(priv
, &priv
->statistics
);
3459 iwl_sensitivity_calibration(priv
, &priv
->statistics
);
3462 mutex_unlock(&priv
->mutex
);
3466 static void iwl4965_bg_up(struct work_struct
*data
)
3468 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, up
);
3470 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3473 mutex_lock(&priv
->mutex
);
3475 mutex_unlock(&priv
->mutex
);
3478 static void iwl4965_bg_restart(struct work_struct
*data
)
3480 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
3482 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3486 queue_work(priv
->workqueue
, &priv
->up
);
3489 static void iwl4965_bg_rx_replenish(struct work_struct
*data
)
3491 struct iwl_priv
*priv
=
3492 container_of(data
, struct iwl_priv
, rx_replenish
);
3494 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3497 mutex_lock(&priv
->mutex
);
3498 iwl_rx_replenish(priv
);
3499 mutex_unlock(&priv
->mutex
);
3502 #define IWL_DELAY_NEXT_SCAN (HZ*2)
3504 static void iwl4965_post_associate(struct iwl_priv
*priv
)
3506 struct ieee80211_conf
*conf
= NULL
;
3508 DECLARE_MAC_BUF(mac
);
3510 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
3511 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
3515 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
3517 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
3520 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3524 if (!priv
->vif
|| !priv
->is_open
)
3527 iwl4965_scan_cancel_timeout(priv
, 200);
3529 conf
= ieee80211_get_hw_conf(priv
->hw
);
3531 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
3532 iwl4965_commit_rxon(priv
);
3534 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
3535 iwl4965_setup_rxon_timing(priv
);
3536 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
3537 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
3539 IWL_WARNING("REPLY_RXON_TIMING failed - "
3540 "Attempting to continue.\n");
3542 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
3544 if (priv
->current_ht_config
.is_ht
)
3545 iwl_set_rxon_ht(priv
, &priv
->current_ht_config
);
3547 iwl_set_rxon_chain(priv
);
3548 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
3550 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
3551 priv
->assoc_id
, priv
->beacon_int
);
3553 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
3554 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
3556 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
3558 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
3559 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
3560 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
3562 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
3564 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
3565 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
3569 iwl4965_commit_rxon(priv
);
3571 switch (priv
->iw_mode
) {
3572 case IEEE80211_IF_TYPE_STA
:
3573 iwl4965_rate_scale_init(priv
->hw
, IWL_AP_ID
);
3576 case IEEE80211_IF_TYPE_IBSS
:
3578 /* clear out the station table */
3579 iwlcore_clear_stations_table(priv
);
3581 iwl_rxon_add_station(priv
, iwl_bcast_addr
, 0);
3582 iwl_rxon_add_station(priv
, priv
->bssid
, 0);
3583 iwl4965_rate_scale_init(priv
->hw
, IWL_STA_ID
);
3584 iwl4965_send_beacon_cmd(priv
);
3589 IWL_ERROR("%s Should not be called in %d mode\n",
3590 __FUNCTION__
, priv
->iw_mode
);
3594 iwl4965_sequence_reset(priv
);
3596 /* Enable Rx differential gain and sensitivity calibrations */
3597 iwl_chain_noise_reset(priv
);
3598 priv
->start_calib
= 1;
3600 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
3601 priv
->assoc_station_added
= 1;
3603 iwl4965_activate_qos(priv
, 0);
3605 iwl_power_update_mode(priv
, 0);
3606 /* we have just associated, don't start scan too early */
3607 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
3611 static void iwl4965_bg_post_associate(struct work_struct
*data
)
3613 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
,
3614 post_associate
.work
);
3616 mutex_lock(&priv
->mutex
);
3617 iwl4965_post_associate(priv
);
3618 mutex_unlock(&priv
->mutex
);
3622 static void iwl4965_bg_abort_scan(struct work_struct
*work
)
3624 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, abort_scan
);
3626 if (!iwl_is_ready(priv
))
3629 mutex_lock(&priv
->mutex
);
3631 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
3632 iwl4965_send_scan_abort(priv
);
3634 mutex_unlock(&priv
->mutex
);
3637 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
3639 static void iwl4965_bg_scan_completed(struct work_struct
*work
)
3641 struct iwl_priv
*priv
=
3642 container_of(work
, struct iwl_priv
, scan_completed
);
3644 IWL_DEBUG(IWL_DL_SCAN
, "SCAN complete scan\n");
3646 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3649 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
3650 iwl4965_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
3652 ieee80211_scan_completed(priv
->hw
);
3654 /* Since setting the TXPOWER may have been deferred while
3655 * performing the scan, fire one off */
3656 mutex_lock(&priv
->mutex
);
3657 iwl4965_hw_reg_send_txpower(priv
);
3658 mutex_unlock(&priv
->mutex
);
3661 /*****************************************************************************
3663 * mac80211 entry point functions
3665 *****************************************************************************/
3667 #define UCODE_READY_TIMEOUT (2 * HZ)
3669 static int iwl4965_mac_start(struct ieee80211_hw
*hw
)
3671 struct iwl_priv
*priv
= hw
->priv
;
3674 IWL_DEBUG_MAC80211("enter\n");
3676 if (pci_enable_device(priv
->pci_dev
)) {
3677 IWL_ERROR("Fail to pci_enable_device\n");
3680 pci_restore_state(priv
->pci_dev
);
3681 pci_enable_msi(priv
->pci_dev
);
3683 ret
= request_irq(priv
->pci_dev
->irq
, iwl4965_isr
, IRQF_SHARED
,
3686 IWL_ERROR("Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
3687 goto out_disable_msi
;
3690 /* we should be verifying the device is ready to be opened */
3691 mutex_lock(&priv
->mutex
);
3693 memset(&priv
->staging_rxon
, 0, sizeof(struct iwl_rxon_cmd
));
3694 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
3695 * ucode filename and max sizes are card-specific. */
3697 if (!priv
->ucode_code
.len
) {
3698 ret
= iwl4965_read_ucode(priv
);
3700 IWL_ERROR("Could not read microcode: %d\n", ret
);
3701 mutex_unlock(&priv
->mutex
);
3702 goto out_release_irq
;
3706 ret
= __iwl4965_up(priv
);
3708 mutex_unlock(&priv
->mutex
);
3711 goto out_release_irq
;
3713 IWL_DEBUG_INFO("Start UP work done.\n");
3715 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
3718 /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
3719 * mac80211 will not be run successfully. */
3720 if (priv
->ucode_type
== UCODE_RT
) {
3721 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
3722 test_bit(STATUS_READY
, &priv
->status
),
3723 UCODE_READY_TIMEOUT
);
3725 if (!test_bit(STATUS_READY
, &priv
->status
)) {
3726 IWL_ERROR("START_ALIVE timeout after %dms.\n",
3727 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
3729 goto out_release_irq
;
3735 IWL_DEBUG_MAC80211("leave\n");
3739 free_irq(priv
->pci_dev
->irq
, priv
);
3741 pci_disable_msi(priv
->pci_dev
);
3742 pci_disable_device(priv
->pci_dev
);
3744 IWL_DEBUG_MAC80211("leave - failed\n");
3748 static void iwl4965_mac_stop(struct ieee80211_hw
*hw
)
3750 struct iwl_priv
*priv
= hw
->priv
;
3752 IWL_DEBUG_MAC80211("enter\n");
3754 if (!priv
->is_open
) {
3755 IWL_DEBUG_MAC80211("leave - skip\n");
3761 if (iwl_is_ready_rf(priv
)) {
3762 /* stop mac, cancel any scan request and clear
3763 * RXON_FILTER_ASSOC_MSK BIT
3765 mutex_lock(&priv
->mutex
);
3766 iwl4965_scan_cancel_timeout(priv
, 100);
3767 cancel_delayed_work(&priv
->post_associate
);
3768 mutex_unlock(&priv
->mutex
);
3773 flush_workqueue(priv
->workqueue
);
3774 free_irq(priv
->pci_dev
->irq
, priv
);
3775 pci_disable_msi(priv
->pci_dev
);
3776 pci_save_state(priv
->pci_dev
);
3777 pci_disable_device(priv
->pci_dev
);
3779 IWL_DEBUG_MAC80211("leave\n");
3782 static int iwl4965_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
3784 struct iwl_priv
*priv
= hw
->priv
;
3786 IWL_DEBUG_MAC80211("enter\n");
3788 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
3789 IWL_DEBUG_MAC80211("leave - monitor\n");
3793 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
3794 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
3796 if (iwl_tx_skb(priv
, skb
))
3797 dev_kfree_skb_any(skb
);
3799 IWL_DEBUG_MAC80211("leave\n");
3803 static int iwl4965_mac_add_interface(struct ieee80211_hw
*hw
,
3804 struct ieee80211_if_init_conf
*conf
)
3806 struct iwl_priv
*priv
= hw
->priv
;
3807 unsigned long flags
;
3808 DECLARE_MAC_BUF(mac
);
3810 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
3813 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
3817 spin_lock_irqsave(&priv
->lock
, flags
);
3818 priv
->vif
= conf
->vif
;
3820 spin_unlock_irqrestore(&priv
->lock
, flags
);
3822 mutex_lock(&priv
->mutex
);
3824 if (conf
->mac_addr
) {
3825 IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac
, conf
->mac_addr
));
3826 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
3829 if (iwl_is_ready(priv
))
3830 iwl4965_set_mode(priv
, conf
->type
);
3832 mutex_unlock(&priv
->mutex
);
3834 IWL_DEBUG_MAC80211("leave\n");
3839 * iwl4965_mac_config - mac80211 config callback
3841 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
3842 * be set inappropriately and the driver currently sets the hardware up to
3843 * use it whenever needed.
3845 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
3847 struct iwl_priv
*priv
= hw
->priv
;
3848 const struct iwl_channel_info
*ch_info
;
3849 unsigned long flags
;
3853 mutex_lock(&priv
->mutex
);
3854 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
3856 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
3859 if (priv
->cfg
->ops
->lib
->radio_kill_sw
&&
3860 priv
->cfg
->ops
->lib
->radio_kill_sw(priv
, !conf
->radio_enabled
)) {
3861 IWL_DEBUG_MAC80211("leave - RF-KILL - waiting for uCode\n");
3862 mutex_unlock(&priv
->mutex
);
3865 if (!iwl_is_ready(priv
)) {
3866 IWL_DEBUG_MAC80211("leave - not ready\n");
3871 if (unlikely(!priv
->cfg
->mod_params
->disable_hw_scan
&&
3872 test_bit(STATUS_SCANNING
, &priv
->status
))) {
3873 IWL_DEBUG_MAC80211("leave - scanning\n");
3874 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
3875 mutex_unlock(&priv
->mutex
);
3879 channel
= ieee80211_frequency_to_channel(conf
->channel
->center_freq
);
3880 ch_info
= iwl_get_channel_info(priv
, conf
->channel
->band
, channel
);
3881 if (!is_channel_valid(ch_info
)) {
3882 IWL_DEBUG_MAC80211("leave - invalid channel\n");
3887 spin_lock_irqsave(&priv
->lock
, flags
);
3889 /* if we are switching from ht to 2.4 clear flags
3890 * from any ht related info since 2.4 does not
3892 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != channel
)
3893 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
3894 && !(conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
)
3897 priv
->staging_rxon
.flags
= 0;
3899 iwl_set_rxon_channel(priv
, conf
->channel
->band
, channel
);
3901 iwl_set_flags_for_band(priv
, conf
->channel
->band
);
3903 /* The list of supported rates and rate mask can be different
3904 * for each band; since the band may have changed, reset
3905 * the rate mask to what mac80211 lists */
3906 iwl4965_set_rate(priv
);
3908 spin_unlock_irqrestore(&priv
->lock
, flags
);
3910 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
3911 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
3912 iwl4965_hw_channel_switch(priv
, conf
->channel
);
3917 if (!conf
->radio_enabled
) {
3918 IWL_DEBUG_MAC80211("leave - radio disabled\n");
3922 if (iwl_is_rfkill(priv
)) {
3923 IWL_DEBUG_MAC80211("leave - RF kill\n");
3928 iwl4965_set_rate(priv
);
3930 if (memcmp(&priv
->active_rxon
,
3931 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
3932 iwl4965_commit_rxon(priv
);
3934 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
3936 IWL_DEBUG_MAC80211("leave\n");
3939 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
3940 mutex_unlock(&priv
->mutex
);
3944 static void iwl4965_config_ap(struct iwl_priv
*priv
)
3948 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
3951 /* The following should be done only at AP bring up */
3952 if ((priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) == 0) {
3954 /* RXON - unassoc (to set timing command) */
3955 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
3956 iwl4965_commit_rxon(priv
);
3959 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
3960 iwl4965_setup_rxon_timing(priv
);
3961 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
3962 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
3964 IWL_WARNING("REPLY_RXON_TIMING failed - "
3965 "Attempting to continue.\n");
3967 iwl_set_rxon_chain(priv
);
3969 /* FIXME: what should be the assoc_id for AP? */
3970 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
3971 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
3972 priv
->staging_rxon
.flags
|=
3973 RXON_FLG_SHORT_PREAMBLE_MSK
;
3975 priv
->staging_rxon
.flags
&=
3976 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
3978 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
3979 if (priv
->assoc_capability
&
3980 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
3981 priv
->staging_rxon
.flags
|=
3982 RXON_FLG_SHORT_SLOT_MSK
;
3984 priv
->staging_rxon
.flags
&=
3985 ~RXON_FLG_SHORT_SLOT_MSK
;
3987 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
3988 priv
->staging_rxon
.flags
&=
3989 ~RXON_FLG_SHORT_SLOT_MSK
;
3991 /* restore RXON assoc */
3992 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
3993 iwl4965_commit_rxon(priv
);
3994 iwl4965_activate_qos(priv
, 1);
3995 iwl_rxon_add_station(priv
, iwl_bcast_addr
, 0);
3997 iwl4965_send_beacon_cmd(priv
);
3999 /* FIXME - we need to add code here to detect a totally new
4000 * configuration, reset the AP, unassoc, rxon timing, assoc,
4001 * clear sta table, add BCAST sta... */
4004 static int iwl4965_mac_config_interface(struct ieee80211_hw
*hw
,
4005 struct ieee80211_vif
*vif
,
4006 struct ieee80211_if_conf
*conf
)
4008 struct iwl_priv
*priv
= hw
->priv
;
4009 DECLARE_MAC_BUF(mac
);
4010 unsigned long flags
;
4016 if (priv
->vif
!= vif
) {
4017 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
4021 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
4022 (!conf
->beacon
|| !conf
->ssid_len
)) {
4024 ("Leaving in AP mode because HostAPD is not ready.\n");
4028 if (!iwl_is_alive(priv
))
4031 mutex_lock(&priv
->mutex
);
4034 IWL_DEBUG_MAC80211("bssid: %s\n",
4035 print_mac(mac
, conf
->bssid
));
4038 * very dubious code was here; the probe filtering flag is never set:
4040 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
4041 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
4044 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
4046 conf
->bssid
= priv
->mac_addr
;
4047 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
4048 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
4049 print_mac(mac
, conf
->bssid
));
4051 if (priv
->ibss_beacon
)
4052 dev_kfree_skb(priv
->ibss_beacon
);
4054 priv
->ibss_beacon
= conf
->beacon
;
4057 if (iwl_is_rfkill(priv
))
4060 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
4061 !is_multicast_ether_addr(conf
->bssid
)) {
4062 /* If there is currently a HW scan going on in the background
4063 * then we need to cancel it else the RXON below will fail. */
4064 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
4065 IWL_WARNING("Aborted scan still in progress "
4067 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
4068 mutex_unlock(&priv
->mutex
);
4071 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
4073 /* TODO: Audit driver for usage of these members and see
4074 * if mac80211 deprecates them (priv->bssid looks like it
4075 * shouldn't be there, but I haven't scanned the IBSS code
4076 * to verify) - jpk */
4077 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
4079 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
4080 iwl4965_config_ap(priv
);
4082 rc
= iwl4965_commit_rxon(priv
);
4083 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
4084 iwl_rxon_add_station(
4085 priv
, priv
->active_rxon
.bssid_addr
, 1);
4089 iwl4965_scan_cancel_timeout(priv
, 100);
4090 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4091 iwl4965_commit_rxon(priv
);
4095 spin_lock_irqsave(&priv
->lock
, flags
);
4096 if (!conf
->ssid_len
)
4097 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
4099 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
4101 priv
->essid_len
= conf
->ssid_len
;
4102 spin_unlock_irqrestore(&priv
->lock
, flags
);
4104 IWL_DEBUG_MAC80211("leave\n");
4105 mutex_unlock(&priv
->mutex
);
4110 static void iwl4965_configure_filter(struct ieee80211_hw
*hw
,
4111 unsigned int changed_flags
,
4112 unsigned int *total_flags
,
4113 int mc_count
, struct dev_addr_list
*mc_list
)
4117 * see also iwl4965_connection_init_rx_config
4119 struct iwl_priv
*priv
= hw
->priv
;
4121 if (changed_flags
& (FIF_PROMISC_IN_BSS
| FIF_OTHER_BSS
)) {
4122 if (*total_flags
& (FIF_PROMISC_IN_BSS
| FIF_OTHER_BSS
)) {
4123 IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n",
4124 IEEE80211_IF_TYPE_MNTR
,
4125 changed_flags
, *total_flags
);
4126 /* queue work 'cuz mac80211 is holding a lock which
4127 * prevents us from issuing (synchronous) f/w cmds */
4128 queue_work(priv
->workqueue
, &priv
->set_monitor
);
4129 new_flags
&= FIF_PROMISC_IN_BSS
|
4134 *total_flags
= new_flags
;
4137 static void iwl4965_mac_remove_interface(struct ieee80211_hw
*hw
,
4138 struct ieee80211_if_init_conf
*conf
)
4140 struct iwl_priv
*priv
= hw
->priv
;
4142 IWL_DEBUG_MAC80211("enter\n");
4144 mutex_lock(&priv
->mutex
);
4146 if (iwl_is_ready_rf(priv
)) {
4147 iwl4965_scan_cancel_timeout(priv
, 100);
4148 cancel_delayed_work(&priv
->post_associate
);
4149 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4150 iwl4965_commit_rxon(priv
);
4152 if (priv
->vif
== conf
->vif
) {
4154 memset(priv
->bssid
, 0, ETH_ALEN
);
4155 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
4156 priv
->essid_len
= 0;
4158 mutex_unlock(&priv
->mutex
);
4160 IWL_DEBUG_MAC80211("leave\n");
4164 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
4165 static void iwl4965_bss_info_changed(struct ieee80211_hw
*hw
,
4166 struct ieee80211_vif
*vif
,
4167 struct ieee80211_bss_conf
*bss_conf
,
4170 struct iwl_priv
*priv
= hw
->priv
;
4172 IWL_DEBUG_MAC80211("changes = 0x%X\n", changes
);
4174 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
4175 IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
4176 bss_conf
->use_short_preamble
);
4177 if (bss_conf
->use_short_preamble
)
4178 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
4180 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
4183 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
4184 IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf
->use_cts_prot
);
4185 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
4186 priv
->staging_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
4188 priv
->staging_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
4191 if (changes
& BSS_CHANGED_HT
) {
4192 IWL_DEBUG_MAC80211("HT %d\n", bss_conf
->assoc_ht
);
4193 iwl4965_ht_conf(priv
, bss_conf
);
4194 iwl_set_rxon_chain(priv
);
4197 if (changes
& BSS_CHANGED_ASSOC
) {
4198 IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf
->assoc
);
4199 /* This should never happen as this function should
4200 * never be called from interrupt context. */
4201 if (WARN_ON_ONCE(in_interrupt()))
4203 if (bss_conf
->assoc
) {
4204 priv
->assoc_id
= bss_conf
->aid
;
4205 priv
->beacon_int
= bss_conf
->beacon_int
;
4206 priv
->timestamp
= bss_conf
->timestamp
;
4207 priv
->assoc_capability
= bss_conf
->assoc_capability
;
4208 priv
->next_scan_jiffies
= jiffies
+
4209 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC
;
4210 mutex_lock(&priv
->mutex
);
4211 iwl4965_post_associate(priv
);
4212 mutex_unlock(&priv
->mutex
);
4215 IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf
->assoc
);
4217 } else if (changes
&& iwl_is_associated(priv
) && priv
->assoc_id
) {
4218 IWL_DEBUG_MAC80211("Associated Changes %d\n", changes
);
4219 iwl_send_rxon_assoc(priv
);
4224 static int iwl4965_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
4227 unsigned long flags
;
4228 struct iwl_priv
*priv
= hw
->priv
;
4230 IWL_DEBUG_MAC80211("enter\n");
4232 mutex_lock(&priv
->mutex
);
4233 spin_lock_irqsave(&priv
->lock
, flags
);
4235 if (!iwl_is_ready_rf(priv
)) {
4237 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
4241 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
4243 IWL_ERROR("ERROR: APs don't scan\n");
4247 /* we don't schedule scan within next_scan_jiffies period */
4248 if (priv
->next_scan_jiffies
&&
4249 time_after(priv
->next_scan_jiffies
, jiffies
)) {
4253 /* if we just finished scan ask for delay */
4254 if (priv
->last_scan_jiffies
&& time_after(priv
->last_scan_jiffies
+
4255 IWL_DELAY_NEXT_SCAN
, jiffies
)) {
4260 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
4261 iwl4965_escape_essid(ssid
, len
), (int)len
);
4263 priv
->one_direct_scan
= 1;
4264 priv
->direct_ssid_len
= (u8
)
4265 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
4266 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
4268 priv
->one_direct_scan
= 0;
4270 rc
= iwl4965_scan_initiate(priv
);
4272 IWL_DEBUG_MAC80211("leave\n");
4275 spin_unlock_irqrestore(&priv
->lock
, flags
);
4276 mutex_unlock(&priv
->mutex
);
4281 static void iwl4965_mac_update_tkip_key(struct ieee80211_hw
*hw
,
4282 struct ieee80211_key_conf
*keyconf
, const u8
*addr
,
4283 u32 iv32
, u16
*phase1key
)
4285 struct iwl_priv
*priv
= hw
->priv
;
4286 u8 sta_id
= IWL_INVALID_STATION
;
4287 unsigned long flags
;
4288 __le16 key_flags
= 0;
4290 DECLARE_MAC_BUF(mac
);
4292 IWL_DEBUG_MAC80211("enter\n");
4294 sta_id
= iwl_find_station(priv
, addr
);
4295 if (sta_id
== IWL_INVALID_STATION
) {
4296 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
4297 print_mac(mac
, addr
));
4301 iwl4965_scan_cancel_timeout(priv
, 100);
4303 key_flags
|= (STA_KEY_FLG_TKIP
| STA_KEY_FLG_MAP_KEY_MSK
);
4304 key_flags
|= cpu_to_le16(keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
4305 key_flags
&= ~STA_KEY_FLG_INVALID
;
4307 if (sta_id
== priv
->hw_params
.bcast_sta_id
)
4308 key_flags
|= STA_KEY_MULTICAST_MSK
;
4310 spin_lock_irqsave(&priv
->sta_lock
, flags
);
4312 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
4313 priv
->stations
[sta_id
].sta
.key
.tkip_rx_tsc_byte2
= (u8
) iv32
;
4315 for (i
= 0; i
< 5; i
++)
4316 priv
->stations
[sta_id
].sta
.key
.tkip_rx_ttak
[i
] =
4317 cpu_to_le16(phase1key
[i
]);
4319 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
4320 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
4322 iwl_send_add_sta(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
4324 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
4326 IWL_DEBUG_MAC80211("leave\n");
4329 static int iwl4965_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
4330 const u8
*local_addr
, const u8
*addr
,
4331 struct ieee80211_key_conf
*key
)
4333 struct iwl_priv
*priv
= hw
->priv
;
4334 DECLARE_MAC_BUF(mac
);
4336 u8 sta_id
= IWL_INVALID_STATION
;
4337 u8 is_default_wep_key
= 0;
4339 IWL_DEBUG_MAC80211("enter\n");
4341 if (priv
->hw_params
.sw_crypto
) {
4342 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
4346 if (is_zero_ether_addr(addr
))
4347 /* only support pairwise keys */
4350 sta_id
= iwl_find_station(priv
, addr
);
4351 if (sta_id
== IWL_INVALID_STATION
) {
4352 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
4353 print_mac(mac
, addr
));
4358 mutex_lock(&priv
->mutex
);
4359 iwl4965_scan_cancel_timeout(priv
, 100);
4360 mutex_unlock(&priv
->mutex
);
4362 /* If we are getting WEP group key and we didn't receive any key mapping
4363 * so far, we are in legacy wep mode (group key only), otherwise we are
4365 * In legacy wep mode, we use another host command to the uCode */
4366 if (key
->alg
== ALG_WEP
&& sta_id
== priv
->hw_params
.bcast_sta_id
&&
4367 priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
4369 is_default_wep_key
= !priv
->key_mapping_key
;
4371 is_default_wep_key
=
4372 (key
->hw_key_idx
== HW_KEY_DEFAULT
);
4377 if (is_default_wep_key
)
4378 ret
= iwl_set_default_wep_key(priv
, key
);
4380 ret
= iwl_set_dynamic_key(priv
, key
, sta_id
);
4382 IWL_DEBUG_MAC80211("enable hwcrypto key\n");
4385 if (is_default_wep_key
)
4386 ret
= iwl_remove_default_wep_key(priv
, key
);
4388 ret
= iwl_remove_dynamic_key(priv
, key
, sta_id
);
4390 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
4396 IWL_DEBUG_MAC80211("leave\n");
4401 static int iwl4965_mac_conf_tx(struct ieee80211_hw
*hw
, u16 queue
,
4402 const struct ieee80211_tx_queue_params
*params
)
4404 struct iwl_priv
*priv
= hw
->priv
;
4405 unsigned long flags
;
4408 IWL_DEBUG_MAC80211("enter\n");
4410 if (!iwl_is_ready_rf(priv
)) {
4411 IWL_DEBUG_MAC80211("leave - RF not ready\n");
4415 if (queue
>= AC_NUM
) {
4416 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
4420 if (!priv
->qos_data
.qos_enable
) {
4421 priv
->qos_data
.qos_active
= 0;
4422 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
4425 q
= AC_NUM
- 1 - queue
;
4427 spin_lock_irqsave(&priv
->lock
, flags
);
4429 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
4430 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
4431 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
4432 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
4433 cpu_to_le16((params
->txop
* 32));
4435 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
4436 priv
->qos_data
.qos_active
= 1;
4438 spin_unlock_irqrestore(&priv
->lock
, flags
);
4440 mutex_lock(&priv
->mutex
);
4441 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
4442 iwl4965_activate_qos(priv
, 1);
4443 else if (priv
->assoc_id
&& iwl_is_associated(priv
))
4444 iwl4965_activate_qos(priv
, 0);
4446 mutex_unlock(&priv
->mutex
);
4448 IWL_DEBUG_MAC80211("leave\n");
4452 static int iwl4965_mac_get_tx_stats(struct ieee80211_hw
*hw
,
4453 struct ieee80211_tx_queue_stats
*stats
)
4455 struct iwl_priv
*priv
= hw
->priv
;
4457 struct iwl_tx_queue
*txq
;
4458 struct iwl_queue
*q
;
4459 unsigned long flags
;
4461 IWL_DEBUG_MAC80211("enter\n");
4463 if (!iwl_is_ready_rf(priv
)) {
4464 IWL_DEBUG_MAC80211("leave - RF not ready\n");
4468 spin_lock_irqsave(&priv
->lock
, flags
);
4470 for (i
= 0; i
< AC_NUM
; i
++) {
4471 txq
= &priv
->txq
[i
];
4473 avail
= iwl_queue_space(q
);
4475 stats
[i
].len
= q
->n_window
- avail
;
4476 stats
[i
].limit
= q
->n_window
- q
->high_mark
;
4477 stats
[i
].count
= q
->n_window
;
4480 spin_unlock_irqrestore(&priv
->lock
, flags
);
4482 IWL_DEBUG_MAC80211("leave\n");
4487 static int iwl4965_mac_get_stats(struct ieee80211_hw
*hw
,
4488 struct ieee80211_low_level_stats
*stats
)
4490 struct iwl_priv
*priv
= hw
->priv
;
4493 IWL_DEBUG_MAC80211("enter\n");
4494 IWL_DEBUG_MAC80211("leave\n");
4499 static u64
iwl4965_mac_get_tsf(struct ieee80211_hw
*hw
)
4501 struct iwl_priv
*priv
;
4504 IWL_DEBUG_MAC80211("enter\n");
4505 IWL_DEBUG_MAC80211("leave\n");
4510 static void iwl4965_mac_reset_tsf(struct ieee80211_hw
*hw
)
4512 struct iwl_priv
*priv
= hw
->priv
;
4513 unsigned long flags
;
4515 mutex_lock(&priv
->mutex
);
4516 IWL_DEBUG_MAC80211("enter\n");
4518 priv
->lq_mngr
.lq_ready
= 0;
4519 spin_lock_irqsave(&priv
->lock
, flags
);
4520 memset(&priv
->current_ht_config
, 0, sizeof(struct iwl_ht_info
));
4521 spin_unlock_irqrestore(&priv
->lock
, flags
);
4523 iwl_reset_qos(priv
);
4525 cancel_delayed_work(&priv
->post_associate
);
4527 spin_lock_irqsave(&priv
->lock
, flags
);
4529 priv
->assoc_capability
= 0;
4530 priv
->assoc_station_added
= 0;
4532 /* new association get rid of ibss beacon skb */
4533 if (priv
->ibss_beacon
)
4534 dev_kfree_skb(priv
->ibss_beacon
);
4536 priv
->ibss_beacon
= NULL
;
4538 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
4539 priv
->timestamp
= 0;
4540 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
4541 priv
->beacon_int
= 0;
4543 spin_unlock_irqrestore(&priv
->lock
, flags
);
4545 if (!iwl_is_ready_rf(priv
)) {
4546 IWL_DEBUG_MAC80211("leave - not ready\n");
4547 mutex_unlock(&priv
->mutex
);
4551 /* we are restarting association process
4552 * clear RXON_FILTER_ASSOC_MSK bit
4554 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
4555 iwl4965_scan_cancel_timeout(priv
, 100);
4556 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4557 iwl4965_commit_rxon(priv
);
4560 iwl_power_update_mode(priv
, 0);
4562 /* Per mac80211.h: This is only used in IBSS mode... */
4563 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
4565 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
4566 mutex_unlock(&priv
->mutex
);
4570 iwl4965_set_rate(priv
);
4572 mutex_unlock(&priv
->mutex
);
4574 IWL_DEBUG_MAC80211("leave\n");
4577 static int iwl4965_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
4579 struct iwl_priv
*priv
= hw
->priv
;
4580 unsigned long flags
;
4582 mutex_lock(&priv
->mutex
);
4583 IWL_DEBUG_MAC80211("enter\n");
4585 if (!iwl_is_ready_rf(priv
)) {
4586 IWL_DEBUG_MAC80211("leave - RF not ready\n");
4587 mutex_unlock(&priv
->mutex
);
4591 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
4592 IWL_DEBUG_MAC80211("leave - not IBSS\n");
4593 mutex_unlock(&priv
->mutex
);
4597 spin_lock_irqsave(&priv
->lock
, flags
);
4599 if (priv
->ibss_beacon
)
4600 dev_kfree_skb(priv
->ibss_beacon
);
4602 priv
->ibss_beacon
= skb
;
4606 IWL_DEBUG_MAC80211("leave\n");
4607 spin_unlock_irqrestore(&priv
->lock
, flags
);
4609 iwl_reset_qos(priv
);
4611 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
4613 mutex_unlock(&priv
->mutex
);
4618 /*****************************************************************************
4622 *****************************************************************************/
4624 #ifdef CONFIG_IWLWIFI_DEBUG
4627 * The following adds a new attribute to the sysfs representation
4628 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
4629 * used for controlling the debug level.
4631 * See the level definitions in iwl for details.
4634 static ssize_t
show_debug_level(struct device
*d
,
4635 struct device_attribute
*attr
, char *buf
)
4637 struct iwl_priv
*priv
= d
->driver_data
;
4639 return sprintf(buf
, "0x%08X\n", priv
->debug_level
);
4641 static ssize_t
store_debug_level(struct device
*d
,
4642 struct device_attribute
*attr
,
4643 const char *buf
, size_t count
)
4645 struct iwl_priv
*priv
= d
->driver_data
;
4646 char *p
= (char *)buf
;
4649 val
= simple_strtoul(p
, &p
, 0);
4651 printk(KERN_INFO DRV_NAME
4652 ": %s is not in hex or decimal form.\n", buf
);
4654 priv
->debug_level
= val
;
4656 return strnlen(buf
, count
);
4659 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
4660 show_debug_level
, store_debug_level
);
4663 #endif /* CONFIG_IWLWIFI_DEBUG */
4666 static ssize_t
show_version(struct device
*d
,
4667 struct device_attribute
*attr
, char *buf
)
4669 struct iwl_priv
*priv
= d
->driver_data
;
4670 struct iwl_alive_resp
*palive
= &priv
->card_alive
;
4672 if (palive
->is_valid
)
4673 return sprintf(buf
, "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n"
4674 "fw type: 0x%01X 0x%01X\n",
4675 palive
->ucode_major
, palive
->ucode_minor
,
4676 palive
->sw_rev
[0], palive
->sw_rev
[1],
4677 palive
->ver_type
, palive
->ver_subtype
);
4680 return sprintf(buf
, "fw not loaded\n");
4683 static DEVICE_ATTR(version
, S_IWUSR
| S_IRUGO
, show_version
, NULL
);
4685 static ssize_t
show_temperature(struct device
*d
,
4686 struct device_attribute
*attr
, char *buf
)
4688 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
4690 if (!iwl_is_alive(priv
))
4693 return sprintf(buf
, "%d\n", iwl4965_hw_get_temperature(priv
));
4696 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
4698 static ssize_t
show_rs_window(struct device
*d
,
4699 struct device_attribute
*attr
,
4702 struct iwl_priv
*priv
= d
->driver_data
;
4703 return iwl4965_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
4705 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
4707 static ssize_t
show_tx_power(struct device
*d
,
4708 struct device_attribute
*attr
, char *buf
)
4710 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
4711 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
4714 static ssize_t
store_tx_power(struct device
*d
,
4715 struct device_attribute
*attr
,
4716 const char *buf
, size_t count
)
4718 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
4719 char *p
= (char *)buf
;
4722 val
= simple_strtoul(p
, &p
, 10);
4724 printk(KERN_INFO DRV_NAME
4725 ": %s is not in decimal form.\n", buf
);
4727 iwl4965_hw_reg_set_txpower(priv
, val
);
4732 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
4734 static ssize_t
show_flags(struct device
*d
,
4735 struct device_attribute
*attr
, char *buf
)
4737 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
4739 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
4742 static ssize_t
store_flags(struct device
*d
,
4743 struct device_attribute
*attr
,
4744 const char *buf
, size_t count
)
4746 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
4747 u32 flags
= simple_strtoul(buf
, NULL
, 0);
4749 mutex_lock(&priv
->mutex
);
4750 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
4751 /* Cancel any currently running scans... */
4752 if (iwl4965_scan_cancel_timeout(priv
, 100))
4753 IWL_WARNING("Could not cancel scan.\n");
4755 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
4757 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
4758 iwl4965_commit_rxon(priv
);
4761 mutex_unlock(&priv
->mutex
);
4766 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
4768 static ssize_t
show_filter_flags(struct device
*d
,
4769 struct device_attribute
*attr
, char *buf
)
4771 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
4773 return sprintf(buf
, "0x%04X\n",
4774 le32_to_cpu(priv
->active_rxon
.filter_flags
));
4777 static ssize_t
store_filter_flags(struct device
*d
,
4778 struct device_attribute
*attr
,
4779 const char *buf
, size_t count
)
4781 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
4782 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
4784 mutex_lock(&priv
->mutex
);
4785 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
4786 /* Cancel any currently running scans... */
4787 if (iwl4965_scan_cancel_timeout(priv
, 100))
4788 IWL_WARNING("Could not cancel scan.\n");
4790 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
4791 "0x%04X\n", filter_flags
);
4792 priv
->staging_rxon
.filter_flags
=
4793 cpu_to_le32(filter_flags
);
4794 iwl4965_commit_rxon(priv
);
4797 mutex_unlock(&priv
->mutex
);
4802 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
4803 store_filter_flags
);
4805 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
4807 static ssize_t
show_measurement(struct device
*d
,
4808 struct device_attribute
*attr
, char *buf
)
4810 struct iwl_priv
*priv
= dev_get_drvdata(d
);
4811 struct iwl4965_spectrum_notification measure_report
;
4812 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
4813 u8
*data
= (u8
*) & measure_report
;
4814 unsigned long flags
;
4816 spin_lock_irqsave(&priv
->lock
, flags
);
4817 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
4818 spin_unlock_irqrestore(&priv
->lock
, flags
);
4821 memcpy(&measure_report
, &priv
->measure_report
, size
);
4822 priv
->measurement_status
= 0;
4823 spin_unlock_irqrestore(&priv
->lock
, flags
);
4825 while (size
&& (PAGE_SIZE
- len
)) {
4826 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
4827 PAGE_SIZE
- len
, 1);
4829 if (PAGE_SIZE
- len
)
4833 size
-= min(size
, 16U);
4839 static ssize_t
store_measurement(struct device
*d
,
4840 struct device_attribute
*attr
,
4841 const char *buf
, size_t count
)
4843 struct iwl_priv
*priv
= dev_get_drvdata(d
);
4844 struct ieee80211_measurement_params params
= {
4845 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
4846 .start_time
= cpu_to_le64(priv
->last_tsf
),
4847 .duration
= cpu_to_le16(1),
4849 u8 type
= IWL_MEASURE_BASIC
;
4855 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
4856 channel
= simple_strtoul(p
, NULL
, 0);
4858 params
.channel
= channel
;
4861 while (*p
&& *p
!= ' ')
4864 type
= simple_strtoul(p
+ 1, NULL
, 0);
4867 IWL_DEBUG_INFO("Invoking measurement of type %d on "
4868 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
4869 iwl4965_get_measurement(priv
, ¶ms
, type
);
4874 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
4875 show_measurement
, store_measurement
);
4876 #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
4878 static ssize_t
store_retry_rate(struct device
*d
,
4879 struct device_attribute
*attr
,
4880 const char *buf
, size_t count
)
4882 struct iwl_priv
*priv
= dev_get_drvdata(d
);
4884 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
4885 if (priv
->retry_rate
<= 0)
4886 priv
->retry_rate
= 1;
4891 static ssize_t
show_retry_rate(struct device
*d
,
4892 struct device_attribute
*attr
, char *buf
)
4894 struct iwl_priv
*priv
= dev_get_drvdata(d
);
4895 return sprintf(buf
, "%d", priv
->retry_rate
);
4898 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
4901 static ssize_t
store_power_level(struct device
*d
,
4902 struct device_attribute
*attr
,
4903 const char *buf
, size_t count
)
4905 struct iwl_priv
*priv
= dev_get_drvdata(d
);
4909 mode
= simple_strtoul(buf
, NULL
, 0);
4910 mutex_lock(&priv
->mutex
);
4912 if (!iwl_is_ready(priv
)) {
4917 rc
= iwl_power_set_user_mode(priv
, mode
);
4919 IWL_DEBUG_MAC80211("failed setting power mode.\n");
4925 mutex_unlock(&priv
->mutex
);
4929 #define MAX_WX_STRING 80
4931 /* Values are in microsecond */
4932 static const s32 timeout_duration
[] = {
4939 static const s32 period_duration
[] = {
4947 static ssize_t
show_power_level(struct device
*d
,
4948 struct device_attribute
*attr
, char *buf
)
4950 struct iwl_priv
*priv
= dev_get_drvdata(d
);
4951 int level
= priv
->power_data
.power_mode
;
4954 p
+= sprintf(p
, "%d ", level
);
4956 case IWL_POWER_MODE_CAM
:
4958 p
+= sprintf(p
, "(AC)");
4960 case IWL_POWER_BATTERY
:
4961 p
+= sprintf(p
, "(BATTERY)");
4965 "(Timeout %dms, Period %dms)",
4966 timeout_duration
[level
- 1] / 1000,
4967 period_duration
[level
- 1] / 1000);
4970 if (!(priv->power_mode & IWL_POWER_ENABLED))
4971 p += sprintf(p, " OFF\n");
4973 p += sprintf(p, " \n");
4975 p
+= sprintf(p
, " \n");
4976 return (p
- buf
+ 1);
4979 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
4982 static ssize_t
show_channels(struct device
*d
,
4983 struct device_attribute
*attr
, char *buf
)
4985 /* all this shit doesn't belong into sysfs anyway */
4989 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
4991 static ssize_t
show_statistics(struct device
*d
,
4992 struct device_attribute
*attr
, char *buf
)
4994 struct iwl_priv
*priv
= dev_get_drvdata(d
);
4995 u32 size
= sizeof(struct iwl4965_notif_statistics
);
4996 u32 len
= 0, ofs
= 0;
4997 u8
*data
= (u8
*) & priv
->statistics
;
5000 if (!iwl_is_alive(priv
))
5003 mutex_lock(&priv
->mutex
);
5004 rc
= iwl_send_statistics_request(priv
, 0);
5005 mutex_unlock(&priv
->mutex
);
5009 "Error sending statistics request: 0x%08X\n", rc
);
5013 while (size
&& (PAGE_SIZE
- len
)) {
5014 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
5015 PAGE_SIZE
- len
, 1);
5017 if (PAGE_SIZE
- len
)
5021 size
-= min(size
, 16U);
5027 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
5029 static ssize_t
show_status(struct device
*d
,
5030 struct device_attribute
*attr
, char *buf
)
5032 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5033 if (!iwl_is_alive(priv
))
5035 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
5038 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
5040 /*****************************************************************************
5042 * driver setup and teardown
5044 *****************************************************************************/
5046 static void iwl_setup_deferred_work(struct iwl_priv
*priv
)
5048 priv
->workqueue
= create_workqueue(DRV_NAME
);
5050 init_waitqueue_head(&priv
->wait_command_queue
);
5052 INIT_WORK(&priv
->up
, iwl4965_bg_up
);
5053 INIT_WORK(&priv
->restart
, iwl4965_bg_restart
);
5054 INIT_WORK(&priv
->rx_replenish
, iwl4965_bg_rx_replenish
);
5055 INIT_WORK(&priv
->scan_completed
, iwl4965_bg_scan_completed
);
5056 INIT_WORK(&priv
->request_scan
, iwl4965_bg_request_scan
);
5057 INIT_WORK(&priv
->abort_scan
, iwl4965_bg_abort_scan
);
5058 INIT_WORK(&priv
->rf_kill
, iwl4965_bg_rf_kill
);
5059 INIT_WORK(&priv
->beacon_update
, iwl4965_bg_beacon_update
);
5060 INIT_WORK(&priv
->set_monitor
, iwl4965_bg_set_monitor
);
5061 INIT_WORK(&priv
->run_time_calib_work
, iwl_bg_run_time_calib_work
);
5062 INIT_DELAYED_WORK(&priv
->post_associate
, iwl4965_bg_post_associate
);
5063 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl_bg_init_alive_start
);
5064 INIT_DELAYED_WORK(&priv
->alive_start
, iwl_bg_alive_start
);
5065 INIT_DELAYED_WORK(&priv
->scan_check
, iwl4965_bg_scan_check
);
5067 if (priv
->cfg
->ops
->lib
->setup_deferred_work
)
5068 priv
->cfg
->ops
->lib
->setup_deferred_work(priv
);
5070 init_timer(&priv
->statistics_periodic
);
5071 priv
->statistics_periodic
.data
= (unsigned long)priv
;
5072 priv
->statistics_periodic
.function
= iwl4965_bg_statistics_periodic
;
5074 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
5075 iwl4965_irq_tasklet
, (unsigned long)priv
);
5078 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
)
5080 if (priv
->cfg
->ops
->lib
->cancel_deferred_work
)
5081 priv
->cfg
->ops
->lib
->cancel_deferred_work(priv
);
5083 cancel_delayed_work_sync(&priv
->init_alive_start
);
5084 cancel_delayed_work(&priv
->scan_check
);
5085 cancel_delayed_work(&priv
->alive_start
);
5086 cancel_delayed_work(&priv
->post_associate
);
5087 cancel_work_sync(&priv
->beacon_update
);
5088 del_timer_sync(&priv
->statistics_periodic
);
5091 static struct attribute
*iwl4965_sysfs_entries
[] = {
5092 &dev_attr_channels
.attr
,
5093 &dev_attr_flags
.attr
,
5094 &dev_attr_filter_flags
.attr
,
5095 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
5096 &dev_attr_measurement
.attr
,
5098 &dev_attr_power_level
.attr
,
5099 &dev_attr_retry_rate
.attr
,
5100 &dev_attr_rs_window
.attr
,
5101 &dev_attr_statistics
.attr
,
5102 &dev_attr_status
.attr
,
5103 &dev_attr_temperature
.attr
,
5104 &dev_attr_tx_power
.attr
,
5105 #ifdef CONFIG_IWLWIFI_DEBUG
5106 &dev_attr_debug_level
.attr
,
5108 &dev_attr_version
.attr
,
5113 static struct attribute_group iwl4965_attribute_group
= {
5114 .name
= NULL
, /* put in device directory */
5115 .attrs
= iwl4965_sysfs_entries
,
5118 static struct ieee80211_ops iwl4965_hw_ops
= {
5119 .tx
= iwl4965_mac_tx
,
5120 .start
= iwl4965_mac_start
,
5121 .stop
= iwl4965_mac_stop
,
5122 .add_interface
= iwl4965_mac_add_interface
,
5123 .remove_interface
= iwl4965_mac_remove_interface
,
5124 .config
= iwl4965_mac_config
,
5125 .config_interface
= iwl4965_mac_config_interface
,
5126 .configure_filter
= iwl4965_configure_filter
,
5127 .set_key
= iwl4965_mac_set_key
,
5128 .update_tkip_key
= iwl4965_mac_update_tkip_key
,
5129 .get_stats
= iwl4965_mac_get_stats
,
5130 .get_tx_stats
= iwl4965_mac_get_tx_stats
,
5131 .conf_tx
= iwl4965_mac_conf_tx
,
5132 .get_tsf
= iwl4965_mac_get_tsf
,
5133 .reset_tsf
= iwl4965_mac_reset_tsf
,
5134 .beacon_update
= iwl4965_mac_beacon_update
,
5135 .bss_info_changed
= iwl4965_bss_info_changed
,
5136 .ampdu_action
= iwl4965_mac_ampdu_action
,
5137 .hw_scan
= iwl4965_mac_hw_scan
5140 static int iwl4965_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
5143 struct iwl_priv
*priv
;
5144 struct ieee80211_hw
*hw
;
5145 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
5146 unsigned long flags
;
5147 DECLARE_MAC_BUF(mac
);
5149 /************************
5150 * 1. Allocating HW data
5151 ************************/
5153 /* Disabling hardware scan means that mac80211 will perform scans
5154 * "the hard way", rather than using device's scan. */
5155 if (cfg
->mod_params
->disable_hw_scan
) {
5156 if (cfg
->mod_params
->debug
& IWL_DL_INFO
)
5157 dev_printk(KERN_DEBUG
, &(pdev
->dev
),
5158 "Disabling hw_scan\n");
5159 iwl4965_hw_ops
.hw_scan
= NULL
;
5162 hw
= iwl_alloc_all(cfg
, &iwl4965_hw_ops
);
5168 /* At this point both hw and priv are allocated. */
5170 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
5172 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
5174 priv
->pci_dev
= pdev
;
5176 #ifdef CONFIG_IWLWIFI_DEBUG
5177 priv
->debug_level
= priv
->cfg
->mod_params
->debug
;
5178 atomic_set(&priv
->restrict_refcnt
, 0);
5181 /**************************
5182 * 2. Initializing PCI bus
5183 **************************/
5184 if (pci_enable_device(pdev
)) {
5186 goto out_ieee80211_free_hw
;
5189 pci_set_master(pdev
);
5191 err
= pci_set_dma_mask(pdev
, DMA_64BIT_MASK
);
5193 err
= pci_set_consistent_dma_mask(pdev
, DMA_64BIT_MASK
);
5195 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
5197 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
5198 /* both attempts failed: */
5200 printk(KERN_WARNING
"%s: No suitable DMA available.\n",
5202 goto out_pci_disable_device
;
5206 err
= pci_request_regions(pdev
, DRV_NAME
);
5208 goto out_pci_disable_device
;
5210 pci_set_drvdata(pdev
, priv
);
5212 /* We disable the RETRY_TIMEOUT register (0x41) to keep
5213 * PCI Tx retries from interfering with C3 CPU state */
5214 pci_write_config_byte(pdev
, 0x41, 0x00);
5216 /***********************
5217 * 3. Read REV register
5218 ***********************/
5219 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
5220 if (!priv
->hw_base
) {
5222 goto out_pci_release_regions
;
5225 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
5226 (unsigned long long) pci_resource_len(pdev
, 0));
5227 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
5229 iwl_hw_detect(priv
);
5230 printk(KERN_INFO DRV_NAME
5231 ": Detected Intel Wireless WiFi Link %s REV=0x%X\n",
5232 priv
->cfg
->name
, priv
->hw_rev
);
5235 err
= priv
->cfg
->ops
->lib
->apm_ops
.init(priv
);
5237 IWL_DEBUG_INFO("Failed to init APMG\n");
5243 /* Read the EEPROM */
5244 err
= iwl_eeprom_init(priv
);
5246 IWL_ERROR("Unable to init EEPROM\n");
5249 err
= iwl_eeprom_check_version(priv
);
5253 /* extract MAC Address */
5254 iwl_eeprom_get_mac(priv
, priv
->mac_addr
);
5255 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac
, priv
->mac_addr
));
5256 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
5258 /************************
5259 * 5. Setup HW constants
5260 ************************/
5261 /* Device-specific setup */
5262 if (priv
->cfg
->ops
->lib
->set_hw_params(priv
)) {
5263 IWL_ERROR("failed to set hw parameters\n");
5264 goto out_free_eeprom
;
5267 /*******************
5269 *******************/
5271 err
= iwl_init_drv(priv
);
5273 goto out_free_eeprom
;
5274 /* At this point both hw and priv are initialized. */
5276 /**********************************
5277 * 7. Initialize module parameters
5278 **********************************/
5280 /* Disable radio (SW RF KILL) via parameter when loading driver */
5281 if (priv
->cfg
->mod_params
->disable
) {
5282 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
5283 IWL_DEBUG_INFO("Radio disabled.\n");
5286 /********************
5288 ********************/
5289 spin_lock_irqsave(&priv
->lock
, flags
);
5290 iwl4965_disable_interrupts(priv
);
5291 spin_unlock_irqrestore(&priv
->lock
, flags
);
5293 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
5295 IWL_ERROR("failed to create sysfs device attributes\n");
5296 goto out_uninit_drv
;
5300 iwl_setup_deferred_work(priv
);
5301 iwl4965_setup_rx_handlers(priv
);
5303 /********************
5305 ********************/
5306 pci_save_state(pdev
);
5307 pci_disable_device(pdev
);
5309 /**********************************
5310 * 10. Setup and register mac80211
5311 **********************************/
5313 err
= iwl_setup_mac(priv
);
5315 goto out_remove_sysfs
;
5317 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
5319 IWL_ERROR("failed to create debugfs files\n");
5321 /* notify iwlcore to init */
5322 iwlcore_low_level_notify(priv
, IWLCORE_INIT_EVT
);
5326 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
5328 iwl_uninit_drv(priv
);
5330 iwl_eeprom_free(priv
);
5332 pci_iounmap(pdev
, priv
->hw_base
);
5333 out_pci_release_regions
:
5334 pci_release_regions(pdev
);
5335 pci_set_drvdata(pdev
, NULL
);
5336 out_pci_disable_device
:
5337 pci_disable_device(pdev
);
5338 out_ieee80211_free_hw
:
5339 ieee80211_free_hw(priv
->hw
);
5344 static void __devexit
iwl4965_pci_remove(struct pci_dev
*pdev
)
5346 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
5347 struct list_head
*p
, *q
;
5349 unsigned long flags
;
5354 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
5356 iwl_dbgfs_unregister(priv
);
5357 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
5359 if (priv
->mac80211_registered
) {
5360 ieee80211_unregister_hw(priv
->hw
);
5361 priv
->mac80211_registered
= 0;
5364 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5368 /* make sure we flush any pending irq or
5369 * tasklet for the driver
5371 spin_lock_irqsave(&priv
->lock
, flags
);
5372 iwl4965_disable_interrupts(priv
);
5373 spin_unlock_irqrestore(&priv
->lock
, flags
);
5375 iwl_synchronize_irq(priv
);
5377 /* Free MAC hash list for ADHOC */
5378 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++) {
5379 list_for_each_safe(p
, q
, &priv
->ibss_mac_hash
[i
]) {
5381 kfree(list_entry(p
, struct iwl4965_ibss_seq
, list
));
5385 iwlcore_low_level_notify(priv
, IWLCORE_REMOVE_EVT
);
5387 iwl4965_dealloc_ucode_pci(priv
);
5390 iwl_rx_queue_free(priv
, &priv
->rxq
);
5391 iwl_hw_txq_ctx_free(priv
);
5393 iwlcore_clear_stations_table(priv
);
5394 iwl_eeprom_free(priv
);
5397 /*netif_stop_queue(dev); */
5398 flush_workqueue(priv
->workqueue
);
5400 /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
5401 * priv->workqueue... so we can't take down the workqueue
5403 destroy_workqueue(priv
->workqueue
);
5404 priv
->workqueue
= NULL
;
5406 pci_iounmap(pdev
, priv
->hw_base
);
5407 pci_release_regions(pdev
);
5408 pci_disable_device(pdev
);
5409 pci_set_drvdata(pdev
, NULL
);
5411 iwl_uninit_drv(priv
);
5413 if (priv
->ibss_beacon
)
5414 dev_kfree_skb(priv
->ibss_beacon
);
5416 ieee80211_free_hw(priv
->hw
);
5421 static int iwl4965_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
5423 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
5425 if (priv
->is_open
) {
5426 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
5427 iwl4965_mac_stop(priv
->hw
);
5431 pci_set_power_state(pdev
, PCI_D3hot
);
5436 static int iwl4965_pci_resume(struct pci_dev
*pdev
)
5438 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
5440 pci_set_power_state(pdev
, PCI_D0
);
5443 iwl4965_mac_start(priv
->hw
);
5445 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
5449 #endif /* CONFIG_PM */
5451 /*****************************************************************************
5453 * driver and module entry point
5455 *****************************************************************************/
5457 /* Hardware specific file defines the PCI IDs table for that hardware module */
5458 static struct pci_device_id iwl_hw_card_ids
[] = {
5459 {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID
, iwl4965_agn_cfg
)},
5460 {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID
, iwl4965_agn_cfg
)},
5461 #ifdef CONFIG_IWL5000
5462 {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID
, iwl5300_agn_cfg
)},
5463 {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID
, iwl5100_agn_cfg
)},
5464 {IWL_PCI_DEVICE(0x423A, PCI_ANY_ID
, iwl5350_agn_cfg
)},
5465 #endif /* CONFIG_IWL5000 */
5468 MODULE_DEVICE_TABLE(pci
, iwl_hw_card_ids
);
5470 static struct pci_driver iwl_driver
= {
5472 .id_table
= iwl_hw_card_ids
,
5473 .probe
= iwl4965_pci_probe
,
5474 .remove
= __devexit_p(iwl4965_pci_remove
),
5476 .suspend
= iwl4965_pci_suspend
,
5477 .resume
= iwl4965_pci_resume
,
5481 static int __init
iwl4965_init(void)
5485 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
5486 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
5488 ret
= iwl4965_rate_control_register();
5490 IWL_ERROR("Unable to register rate control algorithm: %d\n", ret
);
5494 ret
= pci_register_driver(&iwl_driver
);
5496 IWL_ERROR("Unable to initialize PCI module\n");
5497 goto error_register
;
5503 iwl4965_rate_control_unregister();
5507 static void __exit
iwl4965_exit(void)
5509 pci_unregister_driver(&iwl_driver
);
5510 iwl4965_rate_control_unregister();
5513 module_exit(iwl4965_exit
);
5514 module_init(iwl4965_init
);