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 /*************** STATION TABLE MANAGEMENT ****
91 * mac80211 should be examined to determine if sta_info is duplicating
92 * the functionality provided here
95 /**************************************************************/
99 static void iwl4965_set_rxon_hwcrypto(struct iwl_priv
*priv
, int hw_decrypt
)
101 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
104 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
106 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
111 * iwl4965_check_rxon_cmd - validate RXON structure is valid
113 * NOTE: This is really only useful during development and can eventually
114 * be #ifdef'd out once the driver is stable and folks aren't actively
117 static int iwl4965_check_rxon_cmd(struct iwl_rxon_cmd
*rxon
)
122 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
123 error
|= le32_to_cpu(rxon
->flags
&
124 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
125 RXON_FLG_RADAR_DETECT_MSK
));
127 IWL_WARNING("check 24G fields %d | %d\n",
130 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
131 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
133 IWL_WARNING("check 52 fields %d | %d\n",
135 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
137 IWL_WARNING("check 52 CCK %d | %d\n",
140 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
142 IWL_WARNING("check mac addr %d | %d\n", counter
++, error
);
144 /* make sure basic rates 6Mbps and 1Mbps are supported */
145 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
146 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
148 IWL_WARNING("check basic rate %d | %d\n", counter
++, error
);
150 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
152 IWL_WARNING("check assoc id %d | %d\n", counter
++, error
);
154 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
155 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
157 IWL_WARNING("check CCK and short slot %d | %d\n",
160 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
161 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
163 IWL_WARNING("check CCK & auto detect %d | %d\n",
166 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
167 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
169 IWL_WARNING("check TGG and auto detect %d | %d\n",
173 IWL_WARNING("Tuning to channel %d\n",
174 le16_to_cpu(rxon
->channel
));
177 IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
184 * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
185 * @priv: staging_rxon is compared to active_rxon
187 * If the RXON structure is changing enough to require a new tune,
188 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
189 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
191 static int iwl4965_full_rxon_required(struct iwl_priv
*priv
)
194 /* These items are only settable from the full RXON command */
195 if (!(iwl_is_associated(priv
)) ||
196 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
197 priv
->active_rxon
.bssid_addr
) ||
198 compare_ether_addr(priv
->staging_rxon
.node_addr
,
199 priv
->active_rxon
.node_addr
) ||
200 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
201 priv
->active_rxon
.wlap_bssid_addr
) ||
202 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
203 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
204 (priv
->staging_rxon
.air_propagation
!=
205 priv
->active_rxon
.air_propagation
) ||
206 (priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
!=
207 priv
->active_rxon
.ofdm_ht_single_stream_basic_rates
) ||
208 (priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
!=
209 priv
->active_rxon
.ofdm_ht_dual_stream_basic_rates
) ||
210 (priv
->staging_rxon
.rx_chain
!= priv
->active_rxon
.rx_chain
) ||
211 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
214 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
215 * be updated with the RXON_ASSOC command -- however only some
216 * flag transitions are allowed using RXON_ASSOC */
218 /* Check if we are not switching bands */
219 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
220 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
223 /* Check if we are switching association toggle */
224 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
225 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
232 * iwl4965_commit_rxon - commit staging_rxon to hardware
234 * The RXON command in staging_rxon is committed to the hardware and
235 * the active_rxon structure is updated with the new data. This
236 * function correctly transitions out of the RXON_ASSOC_MSK state if
237 * a HW tune is required based on the RXON structure changes.
239 static int iwl4965_commit_rxon(struct iwl_priv
*priv
)
241 /* cast away the const for active_rxon in this function */
242 struct iwl_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
243 DECLARE_MAC_BUF(mac
);
246 !!(priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
);
248 if (!iwl_is_alive(priv
))
251 /* always get timestamp with Rx frame */
252 priv
->staging_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
253 /* allow CTS-to-self if possible. this is relevant only for
254 * 5000, but will not damage 4965 */
255 priv
->staging_rxon
.flags
|= RXON_FLG_SELF_CTS_EN
;
257 ret
= iwl4965_check_rxon_cmd(&priv
->staging_rxon
);
259 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
263 /* If we don't need to send a full RXON, we can use
264 * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
265 * and other flags for the current radio configuration. */
266 if (!iwl4965_full_rxon_required(priv
)) {
267 ret
= iwl_send_rxon_assoc(priv
);
269 IWL_ERROR("Error setting RXON_ASSOC (%d)\n", ret
);
273 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
277 /* station table will be cleared */
278 priv
->assoc_station_added
= 0;
280 /* If we are currently associated and the new config requires
281 * an RXON_ASSOC and the new config wants the associated mask enabled,
282 * we must clear the associated from the active configuration
283 * before we apply the new config */
284 if (iwl_is_associated(priv
) && new_assoc
) {
285 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
286 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
288 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
289 sizeof(struct iwl_rxon_cmd
),
292 /* If the mask clearing failed then we set
293 * active_rxon back to what it was previously */
295 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
296 IWL_ERROR("Error clearing ASSOC_MSK (%d)\n", ret
);
301 IWL_DEBUG_INFO("Sending RXON\n"
302 "* with%s RXON_FILTER_ASSOC_MSK\n"
305 (new_assoc
? "" : "out"),
306 le16_to_cpu(priv
->staging_rxon
.channel
),
307 print_mac(mac
, priv
->staging_rxon
.bssid_addr
));
309 iwl4965_set_rxon_hwcrypto(priv
, !priv
->hw_params
.sw_crypto
);
311 /* Apply the new configuration
312 * RXON unassoc clears the station table in uCode, send it before
313 * we add the bcast station. If assoc bit is set, we will send RXON
314 * after having added the bcast and bssid station.
317 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
318 sizeof(struct iwl_rxon_cmd
), &priv
->staging_rxon
);
320 IWL_ERROR("Error setting new RXON (%d)\n", ret
);
323 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
326 iwl_clear_stations_table(priv
);
328 if (!priv
->error_recovering
)
329 priv
->start_calib
= 0;
331 /* Add the broadcast address so we can send broadcast frames */
332 if (iwl_rxon_add_station(priv
, iwl_bcast_addr
, 0) ==
333 IWL_INVALID_STATION
) {
334 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
338 /* If we have set the ASSOC_MSK and we are in BSS mode then
339 * add the IWL_AP_ID to the station rate table */
341 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) {
342 ret
= iwl_rxon_add_station(priv
,
343 priv
->active_rxon
.bssid_addr
, 1);
344 if (ret
== IWL_INVALID_STATION
) {
345 IWL_ERROR("Error adding AP address for TX.\n");
348 priv
->assoc_station_added
= 1;
349 if (priv
->default_wep_key
&&
350 iwl_send_static_wepkey_cmd(priv
, 0))
351 IWL_ERROR("Could not send WEP static key.\n");
354 /* Apply the new configuration
355 * RXON assoc doesn't clear the station table in uCode,
357 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
358 sizeof(struct iwl_rxon_cmd
), &priv
->staging_rxon
);
360 IWL_ERROR("Error setting new RXON (%d)\n", ret
);
363 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
366 iwl_init_sensitivity(priv
);
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 ret
= iwl_set_tx_power(priv
, priv
->tx_power_user_lmt
, true);
372 IWL_ERROR("Error sending TX power (%d)\n", ret
);
379 void iwl4965_update_chain_flags(struct iwl_priv
*priv
)
382 iwl_set_rxon_chain(priv
);
383 iwl4965_commit_rxon(priv
);
386 static int iwl4965_send_bt_config(struct iwl_priv
*priv
)
388 struct iwl4965_bt_cmd bt_cmd
= {
396 return iwl_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
397 sizeof(struct iwl4965_bt_cmd
), &bt_cmd
);
400 static void iwl_clear_free_frames(struct iwl_priv
*priv
)
402 struct list_head
*element
;
404 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
407 while (!list_empty(&priv
->free_frames
)) {
408 element
= priv
->free_frames
.next
;
410 kfree(list_entry(element
, struct iwl_frame
, list
));
411 priv
->frames_count
--;
414 if (priv
->frames_count
) {
415 IWL_WARNING("%d frames still in use. Did we lose one?\n",
417 priv
->frames_count
= 0;
421 static struct iwl_frame
*iwl_get_free_frame(struct iwl_priv
*priv
)
423 struct iwl_frame
*frame
;
424 struct list_head
*element
;
425 if (list_empty(&priv
->free_frames
)) {
426 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
428 IWL_ERROR("Could not allocate frame!\n");
432 priv
->frames_count
++;
436 element
= priv
->free_frames
.next
;
438 return list_entry(element
, struct iwl_frame
, list
);
441 static void iwl_free_frame(struct iwl_priv
*priv
, struct iwl_frame
*frame
)
443 memset(frame
, 0, sizeof(*frame
));
444 list_add(&frame
->list
, &priv
->free_frames
);
447 unsigned int iwl4965_fill_beacon_frame(struct iwl_priv
*priv
,
448 struct ieee80211_hdr
*hdr
,
449 const u8
*dest
, int left
)
452 if (!iwl_is_associated(priv
) || !priv
->ibss_beacon
||
453 ((priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) &&
454 (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
)))
457 if (priv
->ibss_beacon
->len
> left
)
460 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
462 return priv
->ibss_beacon
->len
;
465 static u8
iwl4965_rate_get_lowest_plcp(struct iwl_priv
*priv
)
471 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
472 rate_mask
= priv
->active_rate_basic
& 0xF;
474 rate_mask
= priv
->active_rate_basic
& 0xFF0;
476 /* Find lowest valid rate */
477 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
478 i
= iwl_rates
[i
].next_ieee
) {
479 if (rate_mask
& (1 << i
))
480 return iwl_rates
[i
].plcp
;
483 /* No valid rate was found. Assign the lowest one */
484 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
485 return IWL_RATE_1M_PLCP
;
487 return IWL_RATE_6M_PLCP
;
490 static int iwl4965_send_beacon_cmd(struct iwl_priv
*priv
)
492 struct iwl_frame
*frame
;
493 unsigned int frame_size
;
497 frame
= iwl_get_free_frame(priv
);
500 IWL_ERROR("Could not obtain free frame buffer for beacon "
505 rate
= iwl4965_rate_get_lowest_plcp(priv
);
507 frame_size
= iwl4965_hw_get_beacon_cmd(priv
, frame
, rate
);
509 rc
= iwl_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
512 iwl_free_frame(priv
, frame
);
517 /******************************************************************************
519 * Misc. internal state and helper functions
521 ******************************************************************************/
523 static void iwl4965_ht_conf(struct iwl_priv
*priv
,
524 struct ieee80211_bss_conf
*bss_conf
)
526 struct ieee80211_ht_info
*ht_conf
= bss_conf
->ht_conf
;
527 struct ieee80211_ht_bss_info
*ht_bss_conf
= bss_conf
->ht_bss_conf
;
528 struct iwl_ht_info
*iwl_conf
= &priv
->current_ht_config
;
530 IWL_DEBUG_MAC80211("enter: \n");
532 iwl_conf
->is_ht
= bss_conf
->assoc_ht
;
534 if (!iwl_conf
->is_ht
)
537 priv
->ps_mode
= (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
539 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_20
)
540 iwl_conf
->sgf
|= HT_SHORT_GI_20MHZ
;
541 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_40
)
542 iwl_conf
->sgf
|= HT_SHORT_GI_40MHZ
;
544 iwl_conf
->is_green_field
= !!(ht_conf
->cap
& IEEE80211_HT_CAP_GRN_FLD
);
545 iwl_conf
->max_amsdu_size
=
546 !!(ht_conf
->cap
& IEEE80211_HT_CAP_MAX_AMSDU
);
548 iwl_conf
->supported_chan_width
=
549 !!(ht_conf
->cap
& IEEE80211_HT_CAP_SUP_WIDTH
);
550 iwl_conf
->extension_chan_offset
=
551 ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_SEC_OFFSET
;
552 /* If no above or below channel supplied disable FAT channel */
553 if (iwl_conf
->extension_chan_offset
!= IEEE80211_HT_IE_CHA_SEC_ABOVE
&&
554 iwl_conf
->extension_chan_offset
!= IEEE80211_HT_IE_CHA_SEC_BELOW
) {
555 iwl_conf
->extension_chan_offset
= IEEE80211_HT_IE_CHA_SEC_NONE
;
556 iwl_conf
->supported_chan_width
= 0;
559 iwl_conf
->tx_mimo_ps_mode
=
560 (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
561 memcpy(iwl_conf
->supp_mcs_set
, ht_conf
->supp_mcs_set
, 16);
563 iwl_conf
->control_channel
= ht_bss_conf
->primary_channel
;
564 iwl_conf
->tx_chan_width
=
565 !!(ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_WIDTH
);
566 iwl_conf
->ht_protection
=
567 ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_HT_PROTECTION
;
568 iwl_conf
->non_GF_STA_present
=
569 !!(ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_NON_GF_STA_PRSNT
);
571 IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf
->control_channel
);
572 IWL_DEBUG_MAC80211("leave\n");
578 static void iwl_activate_qos(struct iwl_priv
*priv
, u8 force
)
580 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
583 if (!priv
->qos_data
.qos_enable
)
586 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
588 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
589 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
590 priv
->qos_data
.def_qos_parm
.qos_flags
|=
591 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
592 if (priv
->qos_data
.qos_active
)
593 priv
->qos_data
.def_qos_parm
.qos_flags
|=
594 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
596 if (priv
->current_ht_config
.is_ht
)
597 priv
->qos_data
.def_qos_parm
.qos_flags
|= QOS_PARAM_FLG_TGN_MSK
;
599 if (force
|| iwl_is_associated(priv
)) {
600 IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
601 priv
->qos_data
.qos_active
,
602 priv
->qos_data
.def_qos_parm
.qos_flags
);
604 iwl_send_cmd_pdu_async(priv
, REPLY_QOS_PARAM
,
605 sizeof(struct iwl_qosparam_cmd
),
606 &priv
->qos_data
.def_qos_parm
, NULL
);
610 #define MAX_UCODE_BEACON_INTERVAL 4096
611 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
613 static __le16
iwl4965_adjust_beacon_interval(u16 beacon_val
)
616 u16 beacon_factor
= 0;
619 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
620 / MAX_UCODE_BEACON_INTERVAL
;
621 new_val
= beacon_val
/ beacon_factor
;
623 return cpu_to_le16(new_val
);
626 static void iwl4965_setup_rxon_timing(struct iwl_priv
*priv
)
628 u64 interval_tm_unit
;
631 struct ieee80211_conf
*conf
= NULL
;
634 conf
= ieee80211_get_hw_conf(priv
->hw
);
636 spin_lock_irqsave(&priv
->lock
, flags
);
637 priv
->rxon_timing
.timestamp
.dw
[1] = cpu_to_le32(priv
->timestamp
>> 32);
638 priv
->rxon_timing
.timestamp
.dw
[0] =
639 cpu_to_le32(priv
->timestamp
& 0xFFFFFFFF);
641 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
643 tsf
= priv
->timestamp
;
645 beacon_int
= priv
->beacon_int
;
646 spin_unlock_irqrestore(&priv
->lock
, flags
);
648 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) {
649 if (beacon_int
== 0) {
650 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
651 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
653 priv
->rxon_timing
.beacon_interval
=
654 cpu_to_le16(beacon_int
);
655 priv
->rxon_timing
.beacon_interval
=
656 iwl4965_adjust_beacon_interval(
657 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
660 priv
->rxon_timing
.atim_window
= 0;
662 priv
->rxon_timing
.beacon_interval
=
663 iwl4965_adjust_beacon_interval(conf
->beacon_int
);
664 /* TODO: we need to get atim_window from upper stack
665 * for now we set to 0 */
666 priv
->rxon_timing
.atim_window
= 0;
670 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
671 result
= do_div(tsf
, interval_tm_unit
);
672 priv
->rxon_timing
.beacon_init_val
=
673 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
676 ("beacon interval %d beacon timer %d beacon tim %d\n",
677 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
678 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
679 le16_to_cpu(priv
->rxon_timing
.atim_window
));
682 static void iwl_set_flags_for_band(struct iwl_priv
*priv
,
683 enum ieee80211_band band
)
685 if (band
== IEEE80211_BAND_5GHZ
) {
686 priv
->staging_rxon
.flags
&=
687 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
689 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
691 /* Copied from iwl4965_post_associate() */
692 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
693 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
695 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
697 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
698 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
700 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
701 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
702 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
707 * initialize rxon structure with default values from eeprom
709 static void iwl4965_connection_init_rx_config(struct iwl_priv
*priv
)
711 const struct iwl_channel_info
*ch_info
;
713 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
715 switch (priv
->iw_mode
) {
716 case IEEE80211_IF_TYPE_AP
:
717 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
720 case IEEE80211_IF_TYPE_STA
:
721 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
722 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
725 case IEEE80211_IF_TYPE_IBSS
:
726 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
727 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
728 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
729 RXON_FILTER_ACCEPT_GRP_MSK
;
732 case IEEE80211_IF_TYPE_MNTR
:
733 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
734 priv
->staging_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
735 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
738 IWL_ERROR("Unsupported interface type %d\n", priv
->iw_mode
);
743 /* TODO: Figure out when short_preamble would be set and cache from
745 if (!hw_to_local(priv
->hw
)->short_preamble
)
746 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
748 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
751 ch_info
= iwl_get_channel_info(priv
, priv
->band
,
752 le16_to_cpu(priv
->active_rxon
.channel
));
755 ch_info
= &priv
->channel_info
[0];
758 * in some case A channels are all non IBSS
759 * in this case force B/G channel
761 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) &&
762 !(is_channel_ibss(ch_info
)))
763 ch_info
= &priv
->channel_info
[0];
765 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
766 priv
->band
= ch_info
->band
;
768 iwl_set_flags_for_band(priv
, priv
->band
);
770 priv
->staging_rxon
.ofdm_basic_rates
=
771 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
772 priv
->staging_rxon
.cck_basic_rates
=
773 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
775 priv
->staging_rxon
.flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK
|
776 RXON_FLG_CHANNEL_MODE_PURE_40_MSK
);
777 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
778 memcpy(priv
->staging_rxon
.wlap_bssid_addr
, priv
->mac_addr
, ETH_ALEN
);
779 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
= 0xff;
780 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
= 0xff;
781 iwl_set_rxon_chain(priv
);
784 static int iwl4965_set_mode(struct iwl_priv
*priv
, int mode
)
786 priv
->iw_mode
= mode
;
788 iwl4965_connection_init_rx_config(priv
);
789 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
791 iwl_clear_stations_table(priv
);
793 /* dont commit rxon if rf-kill is on*/
794 if (!iwl_is_ready_rf(priv
))
797 cancel_delayed_work(&priv
->scan_check
);
798 if (iwl_scan_cancel_timeout(priv
, 100)) {
799 IWL_WARNING("Aborted scan still in progress after 100ms\n");
800 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
804 iwl4965_commit_rxon(priv
);
809 static void iwl4965_set_rate(struct iwl_priv
*priv
)
811 const struct ieee80211_supported_band
*hw
= NULL
;
812 struct ieee80211_rate
*rate
;
815 hw
= iwl_get_hw_mode(priv
, priv
->band
);
817 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
821 priv
->active_rate
= 0;
822 priv
->active_rate_basic
= 0;
824 for (i
= 0; i
< hw
->n_bitrates
; i
++) {
825 rate
= &(hw
->bitrates
[i
]);
826 if (rate
->hw_value
< IWL_RATE_COUNT
)
827 priv
->active_rate
|= (1 << rate
->hw_value
);
830 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
831 priv
->active_rate
, priv
->active_rate_basic
);
834 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
835 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
838 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
839 priv
->staging_rxon
.cck_basic_rates
=
840 ((priv
->active_rate_basic
&
841 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
843 priv
->staging_rxon
.cck_basic_rates
=
844 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
846 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
847 priv
->staging_rxon
.ofdm_basic_rates
=
848 ((priv
->active_rate_basic
&
849 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
850 IWL_FIRST_OFDM_RATE
) & 0xFF;
852 priv
->staging_rxon
.ofdm_basic_rates
=
853 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
856 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
858 #include "iwl-spectrum.h"
860 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
861 #define BEACON_TIME_MASK_HIGH 0xFF000000
862 #define TIME_UNIT 1024
865 * extended beacon time format
866 * time in usec will be changed into a 32-bit value in 8:24 format
867 * the high 1 byte is the beacon counts
868 * the lower 3 bytes is the time in usec within one beacon interval
871 static u32
iwl4965_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
875 u32 interval
= beacon_interval
* 1024;
877 if (!interval
|| !usec
)
880 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
881 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
883 return (quot
<< 24) + rem
;
886 /* base is usually what we get from ucode with each received frame,
887 * the same as HW timer counter counting down
890 static __le32
iwl4965_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
892 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
893 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
894 u32 interval
= beacon_interval
* TIME_UNIT
;
895 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
896 (addon
& BEACON_TIME_MASK_HIGH
);
898 if (base_low
> addon_low
)
899 res
+= base_low
- addon_low
;
900 else if (base_low
< addon_low
) {
901 res
+= interval
+ base_low
- addon_low
;
906 return cpu_to_le32(res
);
909 static int iwl4965_get_measurement(struct iwl_priv
*priv
,
910 struct ieee80211_measurement_params
*params
,
913 struct iwl4965_spectrum_cmd spectrum
;
914 struct iwl_rx_packet
*res
;
915 struct iwl_host_cmd cmd
= {
916 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
917 .data
= (void *)&spectrum
,
918 .meta
.flags
= CMD_WANT_SKB
,
920 u32 add_time
= le64_to_cpu(params
->start_time
);
922 int spectrum_resp_status
;
923 int duration
= le16_to_cpu(params
->duration
);
925 if (iwl_is_associated(priv
))
927 iwl4965_usecs_to_beacons(
928 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
929 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
931 memset(&spectrum
, 0, sizeof(spectrum
));
933 spectrum
.channel_count
= cpu_to_le16(1);
935 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
936 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
937 cmd
.len
= sizeof(spectrum
);
938 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
940 if (iwl_is_associated(priv
))
941 spectrum
.start_time
=
942 iwl4965_add_beacon_time(priv
->last_beacon_time
,
944 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
946 spectrum
.start_time
= 0;
948 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
949 spectrum
.channels
[0].channel
= params
->channel
;
950 spectrum
.channels
[0].type
= type
;
951 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
952 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
953 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
955 rc
= iwl_send_cmd_sync(priv
, &cmd
);
959 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
960 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
961 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
965 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
966 switch (spectrum_resp_status
) {
967 case 0: /* Command will be handled */
968 if (res
->u
.spectrum
.id
!= 0xff) {
970 ("Replaced existing measurement: %d\n",
972 priv
->measurement_status
&= ~MEASUREMENT_READY
;
974 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
978 case 1: /* Command will not be handled */
983 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
989 /******************************************************************************
991 * Generic RX handler implementations
993 ******************************************************************************/
994 static void iwl_rx_reply_alive(struct iwl_priv
*priv
,
995 struct iwl_rx_mem_buffer
*rxb
)
997 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
998 struct iwl_alive_resp
*palive
;
999 struct delayed_work
*pwork
;
1001 palive
= &pkt
->u
.alive_frame
;
1003 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
1005 palive
->is_valid
, palive
->ver_type
,
1006 palive
->ver_subtype
);
1008 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
1009 IWL_DEBUG_INFO("Initialization Alive received.\n");
1010 memcpy(&priv
->card_alive_init
,
1011 &pkt
->u
.alive_frame
,
1012 sizeof(struct iwl_init_alive_resp
));
1013 pwork
= &priv
->init_alive_start
;
1015 IWL_DEBUG_INFO("Runtime Alive received.\n");
1016 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
1017 sizeof(struct iwl_alive_resp
));
1018 pwork
= &priv
->alive_start
;
1021 /* We delay the ALIVE response by 5ms to
1022 * give the HW RF Kill time to activate... */
1023 if (palive
->is_valid
== UCODE_VALID_OK
)
1024 queue_delayed_work(priv
->workqueue
, pwork
,
1025 msecs_to_jiffies(5));
1027 IWL_WARNING("uCode did not respond OK.\n");
1030 static void iwl4965_rx_reply_error(struct iwl_priv
*priv
,
1031 struct iwl_rx_mem_buffer
*rxb
)
1033 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1035 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
1036 "seq 0x%04X ser 0x%08X\n",
1037 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
1038 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
1039 pkt
->u
.err_resp
.cmd_id
,
1040 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
1041 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
1044 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
1046 static void iwl4965_rx_csa(struct iwl_priv
*priv
, struct iwl_rx_mem_buffer
*rxb
)
1048 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1049 struct iwl_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
1050 struct iwl4965_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
1051 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
1052 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
1053 rxon
->channel
= csa
->channel
;
1054 priv
->staging_rxon
.channel
= csa
->channel
;
1057 static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv
*priv
,
1058 struct iwl_rx_mem_buffer
*rxb
)
1060 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
1061 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1062 struct iwl4965_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
1064 if (!report
->state
) {
1065 IWL_DEBUG(IWL_DL_11H
,
1066 "Spectrum Measure Notification: Start\n");
1070 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
1071 priv
->measurement_status
|= MEASUREMENT_READY
;
1075 static void iwl4965_rx_pm_sleep_notif(struct iwl_priv
*priv
,
1076 struct iwl_rx_mem_buffer
*rxb
)
1078 #ifdef CONFIG_IWLWIFI_DEBUG
1079 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1080 struct iwl4965_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
1081 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
1082 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
1086 static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
1087 struct iwl_rx_mem_buffer
*rxb
)
1089 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1090 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
1091 "notification for %s:\n",
1092 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
1093 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
1096 static void iwl4965_bg_beacon_update(struct work_struct
*work
)
1098 struct iwl_priv
*priv
=
1099 container_of(work
, struct iwl_priv
, beacon_update
);
1100 struct sk_buff
*beacon
;
1102 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
1103 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
);
1106 IWL_ERROR("update beacon failed\n");
1110 mutex_lock(&priv
->mutex
);
1111 /* new beacon skb is allocated every time; dispose previous.*/
1112 if (priv
->ibss_beacon
)
1113 dev_kfree_skb(priv
->ibss_beacon
);
1115 priv
->ibss_beacon
= beacon
;
1116 mutex_unlock(&priv
->mutex
);
1118 iwl4965_send_beacon_cmd(priv
);
1122 * iwl4965_bg_statistics_periodic - Timer callback to queue statistics
1124 * This callback is provided in order to send a statistics request.
1126 * This timer function is continually reset to execute within
1127 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
1128 * was received. We need to ensure we receive the statistics in order
1129 * to update the temperature used for calibrating the TXPOWER.
1131 static void iwl4965_bg_statistics_periodic(unsigned long data
)
1133 struct iwl_priv
*priv
= (struct iwl_priv
*)data
;
1135 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
1138 iwl_send_statistics_request(priv
, CMD_ASYNC
);
1141 static void iwl4965_rx_beacon_notif(struct iwl_priv
*priv
,
1142 struct iwl_rx_mem_buffer
*rxb
)
1144 #ifdef CONFIG_IWLWIFI_DEBUG
1145 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1146 struct iwl4965_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
1147 u8 rate
= iwl_hw_get_rate(beacon
->beacon_notify_hdr
.rate_n_flags
);
1149 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
1150 "tsf %d %d rate %d\n",
1151 le32_to_cpu(beacon
->beacon_notify_hdr
.u
.status
) & TX_STATUS_MSK
,
1152 beacon
->beacon_notify_hdr
.failure_frame
,
1153 le32_to_cpu(beacon
->ibss_mgr_status
),
1154 le32_to_cpu(beacon
->high_tsf
),
1155 le32_to_cpu(beacon
->low_tsf
), rate
);
1158 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
1159 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
1160 queue_work(priv
->workqueue
, &priv
->beacon_update
);
1163 /* Handle notification from uCode that card's power state is changing
1164 * due to software, hardware, or critical temperature RFKILL */
1165 static void iwl4965_rx_card_state_notif(struct iwl_priv
*priv
,
1166 struct iwl_rx_mem_buffer
*rxb
)
1168 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1169 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
1170 unsigned long status
= priv
->status
;
1172 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
1173 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
1174 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
1176 if (flags
& (SW_CARD_DISABLED
| HW_CARD_DISABLED
|
1177 RF_CARD_DISABLED
)) {
1179 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
1180 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
1182 if (!iwl_grab_nic_access(priv
)) {
1184 priv
, HBUS_TARG_MBX_C
,
1185 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
1187 iwl_release_nic_access(priv
);
1190 if (!(flags
& RXON_CARD_DISABLED
)) {
1191 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
1192 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
1193 if (!iwl_grab_nic_access(priv
)) {
1195 priv
, HBUS_TARG_MBX_C
,
1196 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
1198 iwl_release_nic_access(priv
);
1202 if (flags
& RF_CARD_DISABLED
) {
1203 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
1204 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
1205 iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
1206 if (!iwl_grab_nic_access(priv
))
1207 iwl_release_nic_access(priv
);
1211 if (flags
& HW_CARD_DISABLED
)
1212 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1214 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1217 if (flags
& SW_CARD_DISABLED
)
1218 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
1220 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
1222 if (!(flags
& RXON_CARD_DISABLED
))
1223 iwl_scan_cancel(priv
);
1225 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
1226 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
1227 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
1228 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
1229 queue_work(priv
->workqueue
, &priv
->rf_kill
);
1231 wake_up_interruptible(&priv
->wait_command_queue
);
1235 * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
1237 * Setup the RX handlers for each of the reply types sent from the uCode
1240 * This function chains into the hardware specific files for them to setup
1241 * any hardware specific handlers as well.
1243 static void iwl_setup_rx_handlers(struct iwl_priv
*priv
)
1245 priv
->rx_handlers
[REPLY_ALIVE
] = iwl_rx_reply_alive
;
1246 priv
->rx_handlers
[REPLY_ERROR
] = iwl4965_rx_reply_error
;
1247 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl4965_rx_csa
;
1248 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
1249 iwl4965_rx_spectrum_measure_notif
;
1250 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl4965_rx_pm_sleep_notif
;
1251 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
1252 iwl4965_rx_pm_debug_statistics_notif
;
1253 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl4965_rx_beacon_notif
;
1256 * The same handler is used for both the REPLY to a discrete
1257 * statistics request from the host as well as for the periodic
1258 * statistics notifications (after received beacons) from the uCode.
1260 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl_rx_statistics
;
1261 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl_rx_statistics
;
1263 iwl_setup_rx_scan_handlers(priv
);
1265 /* status change handler */
1266 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl4965_rx_card_state_notif
;
1268 priv
->rx_handlers
[MISSED_BEACONS_NOTIFICATION
] =
1269 iwl_rx_missed_beacon_notif
;
1271 priv
->rx_handlers
[REPLY_RX_PHY_CMD
] = iwl_rx_reply_rx_phy
;
1272 priv
->rx_handlers
[REPLY_RX_MPDU_CMD
] = iwl_rx_reply_rx
;
1274 priv
->rx_handlers
[REPLY_COMPRESSED_BA
] = iwl_rx_reply_compressed_ba
;
1275 /* Set up hardware specific Rx handlers */
1276 priv
->cfg
->ops
->lib
->rx_handler_setup(priv
);
1280 * this should be called while priv->lock is locked
1282 static void __iwl_rx_replenish(struct iwl_priv
*priv
)
1284 iwl_rx_allocate(priv
);
1285 iwl_rx_queue_restock(priv
);
1290 * iwl_rx_handle - Main entry function for receiving responses from uCode
1292 * Uses the priv->rx_handlers callback function array to invoke
1293 * the appropriate handlers, including command responses,
1294 * frame-received notifications, and other notifications.
1296 void iwl_rx_handle(struct iwl_priv
*priv
)
1298 struct iwl_rx_mem_buffer
*rxb
;
1299 struct iwl_rx_packet
*pkt
;
1300 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
1303 unsigned long flags
;
1307 /* uCode's read index (stored in shared DRAM) indicates the last Rx
1308 * buffer that the driver may process (last buffer filled by ucode). */
1309 r
= priv
->cfg
->ops
->lib
->shared_mem_rx_idx(priv
);
1312 /* Rx interrupt, but nothing sent from uCode */
1314 IWL_DEBUG(IWL_DL_RX
, "r = %d, i = %d\n", r
, i
);
1316 if (iwl_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
1320 rxb
= rxq
->queue
[i
];
1322 /* If an RXB doesn't have a Rx queue slot associated with it,
1323 * then a bug has been introduced in the queue refilling
1324 * routines -- catch it here */
1325 BUG_ON(rxb
== NULL
);
1327 rxq
->queue
[i
] = NULL
;
1329 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
1330 priv
->hw_params
.rx_buf_size
,
1331 PCI_DMA_FROMDEVICE
);
1332 pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
1334 /* Reclaim a command buffer only if this packet is a response
1335 * to a (driver-originated) command.
1336 * If the packet (e.g. Rx frame) originated from uCode,
1337 * there is no command buffer to reclaim.
1338 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
1339 * but apparently a few don't get set; catch them here. */
1340 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
1341 (pkt
->hdr
.cmd
!= REPLY_RX_PHY_CMD
) &&
1342 (pkt
->hdr
.cmd
!= REPLY_RX
) &&
1343 (pkt
->hdr
.cmd
!= REPLY_COMPRESSED_BA
) &&
1344 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
1345 (pkt
->hdr
.cmd
!= REPLY_TX
);
1347 /* Based on type of command response or notification,
1348 * handle those that need handling via function in
1349 * rx_handlers table. See iwl4965_setup_rx_handlers() */
1350 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
1351 IWL_DEBUG(IWL_DL_RX
, "r = %d, i = %d, %s, 0x%02x\n", r
,
1352 i
, get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
1353 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
1355 /* No handling needed */
1356 IWL_DEBUG(IWL_DL_RX
,
1357 "r %d i %d No handler needed for %s, 0x%02x\n",
1358 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
1363 /* Invoke any callbacks, transfer the skb to caller, and
1364 * fire off the (possibly) blocking iwl_send_cmd()
1365 * as we reclaim the driver command queue */
1366 if (rxb
&& rxb
->skb
)
1367 iwl_tx_cmd_complete(priv
, rxb
);
1369 IWL_WARNING("Claim null rxb?\n");
1372 /* For now we just don't re-use anything. We can tweak this
1373 * later to try and re-use notification packets and SKBs that
1374 * fail to Rx correctly */
1375 if (rxb
->skb
!= NULL
) {
1376 priv
->alloc_rxb_skb
--;
1377 dev_kfree_skb_any(rxb
->skb
);
1381 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
1382 priv
->hw_params
.rx_buf_size
,
1383 PCI_DMA_FROMDEVICE
);
1384 spin_lock_irqsave(&rxq
->lock
, flags
);
1385 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
1386 spin_unlock_irqrestore(&rxq
->lock
, flags
);
1387 i
= (i
+ 1) & RX_QUEUE_MASK
;
1388 /* If there are a lot of unused frames,
1389 * restock the Rx queue so ucode wont assert. */
1394 __iwl_rx_replenish(priv
);
1400 /* Backtrack one entry */
1402 iwl_rx_queue_restock(priv
);
1405 #ifdef CONFIG_IWLWIFI_DEBUG
1406 static void iwl4965_print_rx_config_cmd(struct iwl_priv
*priv
)
1408 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
1409 DECLARE_MAC_BUF(mac
);
1411 IWL_DEBUG_RADIO("RX CONFIG:\n");
1412 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
1413 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
1414 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
1415 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
1416 le32_to_cpu(rxon
->filter_flags
));
1417 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
1418 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
1419 rxon
->ofdm_basic_rates
);
1420 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
1421 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
1422 print_mac(mac
, rxon
->node_addr
));
1423 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
1424 print_mac(mac
, rxon
->bssid_addr
));
1425 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
1429 static void iwl4965_enable_interrupts(struct iwl_priv
*priv
)
1431 IWL_DEBUG_ISR("Enabling interrupts\n");
1432 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
1433 iwl_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
1436 /* call this function to flush any scheduled tasklet */
1437 static inline void iwl_synchronize_irq(struct iwl_priv
*priv
)
1439 /* wait to make sure we flush pedding tasklet*/
1440 synchronize_irq(priv
->pci_dev
->irq
);
1441 tasklet_kill(&priv
->irq_tasklet
);
1444 static inline void iwl4965_disable_interrupts(struct iwl_priv
*priv
)
1446 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
1448 /* disable interrupts from uCode/NIC to host */
1449 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
1451 /* acknowledge/clear/reset any interrupts still pending
1452 * from uCode or flow handler (Rx/Tx DMA) */
1453 iwl_write32(priv
, CSR_INT
, 0xffffffff);
1454 iwl_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
1455 IWL_DEBUG_ISR("Disabled interrupts\n");
1460 * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
1462 static void iwl4965_irq_handle_error(struct iwl_priv
*priv
)
1464 /* Set the FW error flag -- cleared on iwl4965_down */
1465 set_bit(STATUS_FW_ERROR
, &priv
->status
);
1467 /* Cancel currently queued command. */
1468 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
1470 #ifdef CONFIG_IWLWIFI_DEBUG
1471 if (priv
->debug_level
& IWL_DL_FW_ERRORS
) {
1472 iwl_dump_nic_error_log(priv
);
1473 iwl_dump_nic_event_log(priv
);
1474 iwl4965_print_rx_config_cmd(priv
);
1478 wake_up_interruptible(&priv
->wait_command_queue
);
1480 /* Keep the restart process from trying to send host
1481 * commands by clearing the INIT status bit */
1482 clear_bit(STATUS_READY
, &priv
->status
);
1484 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
1485 IWL_DEBUG(IWL_DL_FW_ERRORS
,
1486 "Restarting adapter due to uCode error.\n");
1488 if (iwl_is_associated(priv
)) {
1489 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
1490 sizeof(priv
->recovery_rxon
));
1491 priv
->error_recovering
= 1;
1493 if (priv
->cfg
->mod_params
->restart_fw
)
1494 queue_work(priv
->workqueue
, &priv
->restart
);
1498 static void iwl4965_error_recovery(struct iwl_priv
*priv
)
1500 unsigned long flags
;
1502 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
1503 sizeof(priv
->staging_rxon
));
1504 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1505 iwl4965_commit_rxon(priv
);
1507 iwl_rxon_add_station(priv
, priv
->bssid
, 1);
1509 spin_lock_irqsave(&priv
->lock
, flags
);
1510 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
1511 priv
->error_recovering
= 0;
1512 spin_unlock_irqrestore(&priv
->lock
, flags
);
1515 static void iwl4965_irq_tasklet(struct iwl_priv
*priv
)
1517 u32 inta
, handled
= 0;
1519 unsigned long flags
;
1520 #ifdef CONFIG_IWLWIFI_DEBUG
1524 spin_lock_irqsave(&priv
->lock
, flags
);
1526 /* Ack/clear/reset pending uCode interrupts.
1527 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
1528 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
1529 inta
= iwl_read32(priv
, CSR_INT
);
1530 iwl_write32(priv
, CSR_INT
, inta
);
1532 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
1533 * Any new interrupts that happen after this, either while we're
1534 * in this tasklet, or later, will show up in next ISR/tasklet. */
1535 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1536 iwl_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
1538 #ifdef CONFIG_IWLWIFI_DEBUG
1539 if (priv
->debug_level
& IWL_DL_ISR
) {
1540 /* just for debug */
1541 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
1542 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1543 inta
, inta_mask
, inta_fh
);
1547 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
1548 * atomic, make sure that inta covers all the interrupts that
1549 * we've discovered, even if FH interrupt came in just after
1550 * reading CSR_INT. */
1551 if (inta_fh
& CSR49_FH_INT_RX_MASK
)
1552 inta
|= CSR_INT_BIT_FH_RX
;
1553 if (inta_fh
& CSR49_FH_INT_TX_MASK
)
1554 inta
|= CSR_INT_BIT_FH_TX
;
1556 /* Now service all interrupt bits discovered above. */
1557 if (inta
& CSR_INT_BIT_HW_ERR
) {
1558 IWL_ERROR("Microcode HW error detected. Restarting.\n");
1560 /* Tell the device to stop sending interrupts */
1561 iwl4965_disable_interrupts(priv
);
1563 iwl4965_irq_handle_error(priv
);
1565 handled
|= CSR_INT_BIT_HW_ERR
;
1567 spin_unlock_irqrestore(&priv
->lock
, flags
);
1572 #ifdef CONFIG_IWLWIFI_DEBUG
1573 if (priv
->debug_level
& (IWL_DL_ISR
)) {
1574 /* NIC fires this, but we don't use it, redundant with WAKEUP */
1575 if (inta
& CSR_INT_BIT_SCD
)
1576 IWL_DEBUG_ISR("Scheduler finished to transmit "
1577 "the frame/frames.\n");
1579 /* Alive notification via Rx interrupt will do the real work */
1580 if (inta
& CSR_INT_BIT_ALIVE
)
1581 IWL_DEBUG_ISR("Alive interrupt\n");
1584 /* Safely ignore these bits for debug checks below */
1585 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
1587 /* HW RF KILL switch toggled */
1588 if (inta
& CSR_INT_BIT_RF_KILL
) {
1590 if (!(iwl_read32(priv
, CSR_GP_CNTRL
) &
1591 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
1594 IWL_DEBUG(IWL_DL_RF_KILL
, "RF_KILL bit toggled to %s.\n",
1595 hw_rf_kill
? "disable radio":"enable radio");
1597 /* driver only loads ucode once setting the interface up.
1598 * the driver as well won't allow loading if RFKILL is set
1599 * therefore no need to restart the driver from this handler
1601 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
))
1602 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
1604 handled
|= CSR_INT_BIT_RF_KILL
;
1607 /* Chip got too hot and stopped itself */
1608 if (inta
& CSR_INT_BIT_CT_KILL
) {
1609 IWL_ERROR("Microcode CT kill error detected.\n");
1610 handled
|= CSR_INT_BIT_CT_KILL
;
1613 /* Error detected by uCode */
1614 if (inta
& CSR_INT_BIT_SW_ERR
) {
1615 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
1617 iwl4965_irq_handle_error(priv
);
1618 handled
|= CSR_INT_BIT_SW_ERR
;
1621 /* uCode wakes up after power-down sleep */
1622 if (inta
& CSR_INT_BIT_WAKEUP
) {
1623 IWL_DEBUG_ISR("Wakeup interrupt\n");
1624 iwl_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
1625 iwl_txq_update_write_ptr(priv
, &priv
->txq
[0]);
1626 iwl_txq_update_write_ptr(priv
, &priv
->txq
[1]);
1627 iwl_txq_update_write_ptr(priv
, &priv
->txq
[2]);
1628 iwl_txq_update_write_ptr(priv
, &priv
->txq
[3]);
1629 iwl_txq_update_write_ptr(priv
, &priv
->txq
[4]);
1630 iwl_txq_update_write_ptr(priv
, &priv
->txq
[5]);
1632 handled
|= CSR_INT_BIT_WAKEUP
;
1635 /* All uCode command responses, including Tx command responses,
1636 * Rx "responses" (frame-received notification), and other
1637 * notifications from uCode come through here*/
1638 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
1639 iwl_rx_handle(priv
);
1640 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
1643 if (inta
& CSR_INT_BIT_FH_TX
) {
1644 IWL_DEBUG_ISR("Tx interrupt\n");
1645 handled
|= CSR_INT_BIT_FH_TX
;
1646 /* FH finished to write, send event */
1647 priv
->ucode_write_complete
= 1;
1648 wake_up_interruptible(&priv
->wait_command_queue
);
1651 if (inta
& ~handled
)
1652 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
1654 if (inta
& ~CSR_INI_SET_MASK
) {
1655 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
1656 inta
& ~CSR_INI_SET_MASK
);
1657 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
1660 /* Re-enable all interrupts */
1661 /* only Re-enable if diabled by irq */
1662 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
1663 iwl4965_enable_interrupts(priv
);
1665 #ifdef CONFIG_IWLWIFI_DEBUG
1666 if (priv
->debug_level
& (IWL_DL_ISR
)) {
1667 inta
= iwl_read32(priv
, CSR_INT
);
1668 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
1669 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1670 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
1671 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
1674 spin_unlock_irqrestore(&priv
->lock
, flags
);
1677 static irqreturn_t
iwl4965_isr(int irq
, void *data
)
1679 struct iwl_priv
*priv
= data
;
1680 u32 inta
, inta_mask
;
1685 spin_lock(&priv
->lock
);
1687 /* Disable (but don't clear!) interrupts here to avoid
1688 * back-to-back ISRs and sporadic interrupts from our NIC.
1689 * If we have something to service, the tasklet will re-enable ints.
1690 * If we *don't* have something, we'll re-enable before leaving here. */
1691 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
1692 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
1694 /* Discover which interrupts are active/pending */
1695 inta
= iwl_read32(priv
, CSR_INT
);
1696 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
1698 /* Ignore interrupt if there's nothing in NIC to service.
1699 * This may be due to IRQ shared with another device,
1700 * or due to sporadic interrupts thrown from our NIC. */
1701 if (!inta
&& !inta_fh
) {
1702 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
1706 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
1707 /* Hardware disappeared. It might have already raised
1709 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
1713 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1714 inta
, inta_mask
, inta_fh
);
1716 inta
&= ~CSR_INT_BIT_SCD
;
1718 /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
1719 if (likely(inta
|| inta_fh
))
1720 tasklet_schedule(&priv
->irq_tasklet
);
1723 spin_unlock(&priv
->lock
);
1727 /* re-enable interrupts here since we don't have anything to service. */
1728 /* only Re-enable if diabled by irq */
1729 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
1730 iwl4965_enable_interrupts(priv
);
1731 spin_unlock(&priv
->lock
);
1735 /******************************************************************************
1737 * uCode download functions
1739 ******************************************************************************/
1741 static void iwl4965_dealloc_ucode_pci(struct iwl_priv
*priv
)
1743 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
1744 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
1745 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
1746 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
1747 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
1748 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
1751 static void iwl4965_nic_start(struct iwl_priv
*priv
)
1753 /* Remove all resets to allow NIC to operate */
1754 iwl_write32(priv
, CSR_RESET
, 0);
1759 * iwl4965_read_ucode - Read uCode images from disk file.
1761 * Copy into buffers for card to fetch via bus-mastering
1763 static int iwl4965_read_ucode(struct iwl_priv
*priv
)
1765 struct iwl_ucode
*ucode
;
1767 const struct firmware
*ucode_raw
;
1768 const char *name
= priv
->cfg
->fw_name
;
1771 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
1773 /* Ask kernel firmware_class module to get the boot firmware off disk.
1774 * request_firmware() is synchronous, file is in memory on return. */
1775 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
1777 IWL_ERROR("%s firmware file req failed: Reason %d\n",
1782 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
1783 name
, ucode_raw
->size
);
1785 /* Make sure that we got at least our header! */
1786 if (ucode_raw
->size
< sizeof(*ucode
)) {
1787 IWL_ERROR("File size way too small!\n");
1792 /* Data from ucode file: header followed by uCode images */
1793 ucode
= (void *)ucode_raw
->data
;
1795 ver
= le32_to_cpu(ucode
->ver
);
1796 inst_size
= le32_to_cpu(ucode
->inst_size
);
1797 data_size
= le32_to_cpu(ucode
->data_size
);
1798 init_size
= le32_to_cpu(ucode
->init_size
);
1799 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
1800 boot_size
= le32_to_cpu(ucode
->boot_size
);
1802 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
1803 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
1805 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
1807 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
1809 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
1811 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
1814 /* Verify size of file vs. image size info in file's header */
1815 if (ucode_raw
->size
< sizeof(*ucode
) +
1816 inst_size
+ data_size
+ init_size
+
1817 init_data_size
+ boot_size
) {
1819 IWL_DEBUG_INFO("uCode file size %d too small\n",
1820 (int)ucode_raw
->size
);
1825 /* Verify that uCode images will fit in card's SRAM */
1826 if (inst_size
> priv
->hw_params
.max_inst_size
) {
1827 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
1833 if (data_size
> priv
->hw_params
.max_data_size
) {
1834 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
1839 if (init_size
> priv
->hw_params
.max_inst_size
) {
1841 ("uCode init instr len %d too large to fit in\n",
1846 if (init_data_size
> priv
->hw_params
.max_data_size
) {
1848 ("uCode init data len %d too large to fit in\n",
1853 if (boot_size
> priv
->hw_params
.max_bsm_size
) {
1855 ("uCode boot instr len %d too large to fit in\n",
1861 /* Allocate ucode buffers for card's bus-master loading ... */
1863 /* Runtime instructions and 2 copies of data:
1864 * 1) unmodified from disk
1865 * 2) backup cache for save/restore during power-downs */
1866 priv
->ucode_code
.len
= inst_size
;
1867 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
1869 priv
->ucode_data
.len
= data_size
;
1870 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
1872 priv
->ucode_data_backup
.len
= data_size
;
1873 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
1875 /* Initialization instructions and data */
1876 if (init_size
&& init_data_size
) {
1877 priv
->ucode_init
.len
= init_size
;
1878 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
1880 priv
->ucode_init_data
.len
= init_data_size
;
1881 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
1883 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
1887 /* Bootstrap (instructions only, no data) */
1889 priv
->ucode_boot
.len
= boot_size
;
1890 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
1892 if (!priv
->ucode_boot
.v_addr
)
1896 /* Copy images into buffers for card's bus-master reads ... */
1898 /* Runtime instructions (first block of data in file) */
1899 src
= &ucode
->data
[0];
1900 len
= priv
->ucode_code
.len
;
1901 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
1902 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
1903 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
1904 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
1906 /* Runtime data (2nd block)
1907 * NOTE: Copy into backup buffer will be done in iwl4965_up() */
1908 src
= &ucode
->data
[inst_size
];
1909 len
= priv
->ucode_data
.len
;
1910 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
1911 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
1912 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
1914 /* Initialization instructions (3rd block) */
1916 src
= &ucode
->data
[inst_size
+ data_size
];
1917 len
= priv
->ucode_init
.len
;
1918 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
1920 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
1923 /* Initialization data (4th block) */
1924 if (init_data_size
) {
1925 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
1926 len
= priv
->ucode_init_data
.len
;
1927 IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
1929 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
1932 /* Bootstrap instructions (5th block) */
1933 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
1934 len
= priv
->ucode_boot
.len
;
1935 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len
);
1936 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
1938 /* We have our copies now, allow OS release its copies */
1939 release_firmware(ucode_raw
);
1943 IWL_ERROR("failed to allocate pci memory\n");
1945 iwl4965_dealloc_ucode_pci(priv
);
1948 release_firmware(ucode_raw
);
1955 * iwl_alive_start - called after REPLY_ALIVE notification received
1956 * from protocol/runtime uCode (initialization uCode's
1957 * Alive gets handled by iwl_init_alive_start()).
1959 static void iwl_alive_start(struct iwl_priv
*priv
)
1963 IWL_DEBUG_INFO("Runtime Alive received.\n");
1965 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
1966 /* We had an error bringing up the hardware, so take it
1967 * all the way back down so we can try again */
1968 IWL_DEBUG_INFO("Alive failed.\n");
1972 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
1973 * This is a paranoid check, because we would not have gotten the
1974 * "runtime" alive if code weren't properly loaded. */
1975 if (iwl_verify_ucode(priv
)) {
1976 /* Runtime instruction load was bad;
1977 * take it all the way back down so we can try again */
1978 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
1982 iwl_clear_stations_table(priv
);
1983 ret
= priv
->cfg
->ops
->lib
->alive_notify(priv
);
1985 IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
1990 /* After the ALIVE response, we can send host commands to 4965 uCode */
1991 set_bit(STATUS_ALIVE
, &priv
->status
);
1993 if (iwl_is_rfkill(priv
))
1996 ieee80211_wake_queues(priv
->hw
);
1998 priv
->active_rate
= priv
->rates_mask
;
1999 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
2001 if (iwl_is_associated(priv
)) {
2002 struct iwl_rxon_cmd
*active_rxon
=
2003 (struct iwl_rxon_cmd
*)&priv
->active_rxon
;
2005 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
2006 sizeof(priv
->staging_rxon
));
2007 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2009 /* Initialize our rx_config data */
2010 iwl4965_connection_init_rx_config(priv
);
2011 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2014 /* Configure Bluetooth device coexistence support */
2015 iwl4965_send_bt_config(priv
);
2017 iwl_reset_run_time_calib(priv
);
2019 /* Configure the adapter for unassociated operation */
2020 iwl4965_commit_rxon(priv
);
2022 /* At this point, the NIC is initialized and operational */
2023 iwl_rf_kill_ct_config(priv
);
2025 iwl_leds_register(priv
);
2027 IWL_DEBUG_INFO("ALIVE processing complete.\n");
2028 set_bit(STATUS_READY
, &priv
->status
);
2029 wake_up_interruptible(&priv
->wait_command_queue
);
2031 if (priv
->error_recovering
)
2032 iwl4965_error_recovery(priv
);
2034 iwl_power_update_mode(priv
, 1);
2035 ieee80211_notify_mac(priv
->hw
, IEEE80211_NOTIFY_RE_ASSOC
);
2037 if (test_and_clear_bit(STATUS_MODE_PENDING
, &priv
->status
))
2038 iwl4965_set_mode(priv
, priv
->iw_mode
);
2043 queue_work(priv
->workqueue
, &priv
->restart
);
2046 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
);
2048 static void __iwl4965_down(struct iwl_priv
*priv
)
2050 unsigned long flags
;
2051 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2053 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
2056 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2058 iwl_leds_unregister(priv
);
2060 iwl_clear_stations_table(priv
);
2062 /* Unblock any waiting calls */
2063 wake_up_interruptible_all(&priv
->wait_command_queue
);
2065 /* Wipe out the EXIT_PENDING status bit if we are not actually
2066 * exiting the module */
2068 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2070 /* stop and reset the on-board processor */
2071 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
2073 /* tell the device to stop sending interrupts */
2074 spin_lock_irqsave(&priv
->lock
, flags
);
2075 iwl4965_disable_interrupts(priv
);
2076 spin_unlock_irqrestore(&priv
->lock
, flags
);
2077 iwl_synchronize_irq(priv
);
2079 if (priv
->mac80211_registered
)
2080 ieee80211_stop_queues(priv
->hw
);
2082 /* If we have not previously called iwl4965_init() then
2083 * clear all bits but the RF Kill and SUSPEND bits and return */
2084 if (!iwl_is_init(priv
)) {
2085 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
2087 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
2089 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
2090 STATUS_GEO_CONFIGURED
|
2091 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
2093 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
2094 STATUS_EXIT_PENDING
;
2098 /* ...otherwise clear out all the status bits but the RF Kill and
2099 * SUSPEND bits and continue taking the NIC down. */
2100 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
2102 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
2104 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
2105 STATUS_GEO_CONFIGURED
|
2106 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
2108 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
2110 test_bit(STATUS_EXIT_PENDING
, &priv
->status
) <<
2111 STATUS_EXIT_PENDING
;
2113 spin_lock_irqsave(&priv
->lock
, flags
);
2114 iwl_clear_bit(priv
, CSR_GP_CNTRL
,
2115 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
2116 spin_unlock_irqrestore(&priv
->lock
, flags
);
2118 iwl_txq_ctx_stop(priv
);
2121 spin_lock_irqsave(&priv
->lock
, flags
);
2122 if (!iwl_grab_nic_access(priv
)) {
2123 iwl_write_prph(priv
, APMG_CLK_DIS_REG
,
2124 APMG_CLK_VAL_DMA_CLK_RQT
);
2125 iwl_release_nic_access(priv
);
2127 spin_unlock_irqrestore(&priv
->lock
, flags
);
2131 /* FIXME: apm_ops.suspend(priv) */
2132 priv
->cfg
->ops
->lib
->apm_ops
.reset(priv
);
2133 priv
->cfg
->ops
->lib
->free_shared_mem(priv
);
2136 memset(&priv
->card_alive
, 0, sizeof(struct iwl_alive_resp
));
2138 if (priv
->ibss_beacon
)
2139 dev_kfree_skb(priv
->ibss_beacon
);
2140 priv
->ibss_beacon
= NULL
;
2142 /* clear out any free frames */
2143 iwl_clear_free_frames(priv
);
2146 static void iwl4965_down(struct iwl_priv
*priv
)
2148 mutex_lock(&priv
->mutex
);
2149 __iwl4965_down(priv
);
2150 mutex_unlock(&priv
->mutex
);
2152 iwl_cancel_deferred_work(priv
);
2155 #define MAX_HW_RESTARTS 5
2157 static int __iwl4965_up(struct iwl_priv
*priv
)
2162 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
2163 IWL_WARNING("Exit pending; will not bring the NIC up\n");
2167 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
2168 IWL_ERROR("ucode not available for device bringup\n");
2172 /* If platform's RF_KILL switch is NOT set to KILL */
2173 if (iwl_read32(priv
, CSR_GP_CNTRL
) &
2174 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
2175 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2177 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2179 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
) &&
2180 iwl_is_rfkill(priv
)) {
2181 IWL_WARNING("Radio disabled by %s RF Kill switch\n",
2182 test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ? "HW" : "SW");
2186 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
2188 ret
= priv
->cfg
->ops
->lib
->alloc_shared_mem(priv
);
2190 IWL_ERROR("Unable to allocate shared memory\n");
2194 ret
= iwl_hw_nic_init(priv
);
2196 IWL_ERROR("Unable to init nic\n");
2200 /* make sure rfkill handshake bits are cleared */
2201 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2202 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
2203 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
2205 /* clear (again), then enable host interrupts */
2206 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
2207 iwl4965_enable_interrupts(priv
);
2209 /* really make sure rfkill handshake bits are cleared */
2210 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2211 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2213 /* Copy original ucode data image from disk into backup cache.
2214 * This will be used to initialize the on-board processor's
2215 * data SRAM for a clean start when the runtime program first loads. */
2216 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
2217 priv
->ucode_data
.len
);
2219 /* We return success when we resume from suspend and rf_kill is on. */
2220 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ||
2221 test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
2224 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
2226 iwl_clear_stations_table(priv
);
2228 /* load bootstrap state machine,
2229 * load bootstrap program into processor's memory,
2230 * prepare to load the "initialize" uCode */
2231 ret
= priv
->cfg
->ops
->lib
->load_ucode(priv
);
2234 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret
);
2238 /* Clear out the uCode error bit if it is set */
2239 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
2241 /* start card; "initialize" will load runtime ucode */
2242 iwl4965_nic_start(priv
);
2244 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
2249 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2250 __iwl4965_down(priv
);
2251 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
2253 /* tried to restart and config the device for as long as our
2254 * patience could withstand */
2255 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
2260 /*****************************************************************************
2262 * Workqueue callbacks
2264 *****************************************************************************/
2266 static void iwl_bg_init_alive_start(struct work_struct
*data
)
2268 struct iwl_priv
*priv
=
2269 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
2271 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2274 mutex_lock(&priv
->mutex
);
2275 priv
->cfg
->ops
->lib
->init_alive_start(priv
);
2276 mutex_unlock(&priv
->mutex
);
2279 static void iwl_bg_alive_start(struct work_struct
*data
)
2281 struct iwl_priv
*priv
=
2282 container_of(data
, struct iwl_priv
, alive_start
.work
);
2284 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2287 mutex_lock(&priv
->mutex
);
2288 iwl_alive_start(priv
);
2289 mutex_unlock(&priv
->mutex
);
2292 static void iwl4965_bg_rf_kill(struct work_struct
*work
)
2294 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, rf_kill
);
2296 wake_up_interruptible(&priv
->wait_command_queue
);
2298 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2301 mutex_lock(&priv
->mutex
);
2303 if (!iwl_is_rfkill(priv
)) {
2304 IWL_DEBUG(IWL_DL_RF_KILL
,
2305 "HW and/or SW RF Kill no longer active, restarting "
2307 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2308 queue_work(priv
->workqueue
, &priv
->restart
);
2310 /* make sure mac80211 stop sending Tx frame */
2311 if (priv
->mac80211_registered
)
2312 ieee80211_stop_queues(priv
->hw
);
2314 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
2315 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2316 "disabled by SW switch\n");
2318 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
2319 "Kill switch must be turned off for "
2320 "wireless networking to work.\n");
2322 mutex_unlock(&priv
->mutex
);
2323 iwl_rfkill_set_hw_state(priv
);
2326 static void iwl4965_bg_set_monitor(struct work_struct
*work
)
2328 struct iwl_priv
*priv
= container_of(work
,
2329 struct iwl_priv
, set_monitor
);
2332 IWL_DEBUG(IWL_DL_STATE
, "setting monitor mode\n");
2334 mutex_lock(&priv
->mutex
);
2336 ret
= iwl4965_set_mode(priv
, IEEE80211_IF_TYPE_MNTR
);
2340 IWL_DEBUG(IWL_DL_STATE
, "leave - not ready\n");
2342 IWL_ERROR("iwl4965_set_mode() failed ret = %d\n", ret
);
2345 mutex_unlock(&priv
->mutex
);
2348 static void iwl_bg_run_time_calib_work(struct work_struct
*work
)
2350 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
,
2351 run_time_calib_work
);
2353 mutex_lock(&priv
->mutex
);
2355 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
2356 test_bit(STATUS_SCANNING
, &priv
->status
)) {
2357 mutex_unlock(&priv
->mutex
);
2361 if (priv
->start_calib
) {
2362 iwl_chain_noise_calibration(priv
, &priv
->statistics
);
2364 iwl_sensitivity_calibration(priv
, &priv
->statistics
);
2367 mutex_unlock(&priv
->mutex
);
2371 static void iwl4965_bg_up(struct work_struct
*data
)
2373 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, up
);
2375 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2378 mutex_lock(&priv
->mutex
);
2380 mutex_unlock(&priv
->mutex
);
2381 iwl_rfkill_set_hw_state(priv
);
2384 static void iwl4965_bg_restart(struct work_struct
*data
)
2386 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
2388 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2392 queue_work(priv
->workqueue
, &priv
->up
);
2395 static void iwl4965_bg_rx_replenish(struct work_struct
*data
)
2397 struct iwl_priv
*priv
=
2398 container_of(data
, struct iwl_priv
, rx_replenish
);
2400 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2403 mutex_lock(&priv
->mutex
);
2404 iwl_rx_replenish(priv
);
2405 mutex_unlock(&priv
->mutex
);
2408 #define IWL_DELAY_NEXT_SCAN (HZ*2)
2410 static void iwl4965_post_associate(struct iwl_priv
*priv
)
2412 struct ieee80211_conf
*conf
= NULL
;
2414 DECLARE_MAC_BUF(mac
);
2415 unsigned long flags
;
2417 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
2418 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
2422 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
2424 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
2427 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2431 if (!priv
->vif
|| !priv
->is_open
)
2434 iwl_scan_cancel_timeout(priv
, 200);
2436 conf
= ieee80211_get_hw_conf(priv
->hw
);
2438 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2439 iwl4965_commit_rxon(priv
);
2441 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
2442 iwl4965_setup_rxon_timing(priv
);
2443 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
2444 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
2446 IWL_WARNING("REPLY_RXON_TIMING failed - "
2447 "Attempting to continue.\n");
2449 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
2451 if (priv
->current_ht_config
.is_ht
)
2452 iwl_set_rxon_ht(priv
, &priv
->current_ht_config
);
2454 iwl_set_rxon_chain(priv
);
2455 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
2457 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
2458 priv
->assoc_id
, priv
->beacon_int
);
2460 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
2461 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2463 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2465 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
2466 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
2467 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2469 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2471 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
2472 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2476 iwl4965_commit_rxon(priv
);
2478 switch (priv
->iw_mode
) {
2479 case IEEE80211_IF_TYPE_STA
:
2482 case IEEE80211_IF_TYPE_IBSS
:
2484 /* assume default assoc id */
2487 iwl_rxon_add_station(priv
, priv
->bssid
, 0);
2488 iwl4965_send_beacon_cmd(priv
);
2493 IWL_ERROR("%s Should not be called in %d mode\n",
2494 __FUNCTION__
, priv
->iw_mode
);
2498 /* Enable Rx differential gain and sensitivity calibrations */
2499 iwl_chain_noise_reset(priv
);
2500 priv
->start_calib
= 1;
2502 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
2503 priv
->assoc_station_added
= 1;
2505 spin_lock_irqsave(&priv
->lock
, flags
);
2506 iwl_activate_qos(priv
, 0);
2507 spin_unlock_irqrestore(&priv
->lock
, flags
);
2509 iwl_power_update_mode(priv
, 0);
2510 /* we have just associated, don't start scan too early */
2511 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
2514 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
2516 static void iwl_bg_scan_completed(struct work_struct
*work
)
2518 struct iwl_priv
*priv
=
2519 container_of(work
, struct iwl_priv
, scan_completed
);
2521 IWL_DEBUG_SCAN("SCAN complete scan\n");
2523 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2526 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
2527 iwl4965_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
2529 ieee80211_scan_completed(priv
->hw
);
2531 /* Since setting the TXPOWER may have been deferred while
2532 * performing the scan, fire one off */
2533 mutex_lock(&priv
->mutex
);
2534 iwl_set_tx_power(priv
, priv
->tx_power_user_lmt
, true);
2535 mutex_unlock(&priv
->mutex
);
2538 /*****************************************************************************
2540 * mac80211 entry point functions
2542 *****************************************************************************/
2544 #define UCODE_READY_TIMEOUT (4 * HZ)
2546 static int iwl4965_mac_start(struct ieee80211_hw
*hw
)
2548 struct iwl_priv
*priv
= hw
->priv
;
2551 IWL_DEBUG_MAC80211("enter\n");
2553 if (pci_enable_device(priv
->pci_dev
)) {
2554 IWL_ERROR("Fail to pci_enable_device\n");
2557 pci_restore_state(priv
->pci_dev
);
2558 pci_enable_msi(priv
->pci_dev
);
2560 ret
= request_irq(priv
->pci_dev
->irq
, iwl4965_isr
, IRQF_SHARED
,
2563 IWL_ERROR("Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
2564 goto out_disable_msi
;
2567 /* we should be verifying the device is ready to be opened */
2568 mutex_lock(&priv
->mutex
);
2570 memset(&priv
->staging_rxon
, 0, sizeof(struct iwl_rxon_cmd
));
2571 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
2572 * ucode filename and max sizes are card-specific. */
2574 if (!priv
->ucode_code
.len
) {
2575 ret
= iwl4965_read_ucode(priv
);
2577 IWL_ERROR("Could not read microcode: %d\n", ret
);
2578 mutex_unlock(&priv
->mutex
);
2579 goto out_release_irq
;
2583 ret
= __iwl4965_up(priv
);
2585 mutex_unlock(&priv
->mutex
);
2587 iwl_rfkill_set_hw_state(priv
);
2590 goto out_release_irq
;
2592 IWL_DEBUG_INFO("Start UP work done.\n");
2594 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
2597 /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
2598 * mac80211 will not be run successfully. */
2599 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
2600 test_bit(STATUS_READY
, &priv
->status
),
2601 UCODE_READY_TIMEOUT
);
2603 if (!test_bit(STATUS_READY
, &priv
->status
)) {
2604 IWL_ERROR("START_ALIVE timeout after %dms.\n",
2605 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
2607 goto out_release_irq
;
2612 IWL_DEBUG_MAC80211("leave\n");
2616 free_irq(priv
->pci_dev
->irq
, priv
);
2618 pci_disable_msi(priv
->pci_dev
);
2619 pci_disable_device(priv
->pci_dev
);
2621 IWL_DEBUG_MAC80211("leave - failed\n");
2625 static void iwl4965_mac_stop(struct ieee80211_hw
*hw
)
2627 struct iwl_priv
*priv
= hw
->priv
;
2629 IWL_DEBUG_MAC80211("enter\n");
2631 if (!priv
->is_open
) {
2632 IWL_DEBUG_MAC80211("leave - skip\n");
2638 if (iwl_is_ready_rf(priv
)) {
2639 /* stop mac, cancel any scan request and clear
2640 * RXON_FILTER_ASSOC_MSK BIT
2642 mutex_lock(&priv
->mutex
);
2643 iwl_scan_cancel_timeout(priv
, 100);
2644 mutex_unlock(&priv
->mutex
);
2649 flush_workqueue(priv
->workqueue
);
2650 free_irq(priv
->pci_dev
->irq
, priv
);
2651 pci_disable_msi(priv
->pci_dev
);
2652 pci_save_state(priv
->pci_dev
);
2653 pci_disable_device(priv
->pci_dev
);
2655 IWL_DEBUG_MAC80211("leave\n");
2658 static int iwl4965_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
2660 struct iwl_priv
*priv
= hw
->priv
;
2662 IWL_DEBUG_MAC80211("enter\n");
2664 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
2665 IWL_DEBUG_MAC80211("leave - monitor\n");
2666 dev_kfree_skb_any(skb
);
2670 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
2671 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
2673 if (iwl_tx_skb(priv
, skb
))
2674 dev_kfree_skb_any(skb
);
2676 IWL_DEBUG_MAC80211("leave\n");
2680 static int iwl4965_mac_add_interface(struct ieee80211_hw
*hw
,
2681 struct ieee80211_if_init_conf
*conf
)
2683 struct iwl_priv
*priv
= hw
->priv
;
2684 unsigned long flags
;
2685 DECLARE_MAC_BUF(mac
);
2687 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
2690 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
2694 spin_lock_irqsave(&priv
->lock
, flags
);
2695 priv
->vif
= conf
->vif
;
2697 spin_unlock_irqrestore(&priv
->lock
, flags
);
2699 mutex_lock(&priv
->mutex
);
2701 if (conf
->mac_addr
) {
2702 IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac
, conf
->mac_addr
));
2703 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
2706 if (iwl4965_set_mode(priv
, conf
->type
) == -EAGAIN
)
2707 /* we are not ready, will run again when ready */
2708 set_bit(STATUS_MODE_PENDING
, &priv
->status
);
2710 mutex_unlock(&priv
->mutex
);
2712 IWL_DEBUG_MAC80211("leave\n");
2717 * iwl4965_mac_config - mac80211 config callback
2719 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
2720 * be set inappropriately and the driver currently sets the hardware up to
2721 * use it whenever needed.
2723 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
2725 struct iwl_priv
*priv
= hw
->priv
;
2726 const struct iwl_channel_info
*ch_info
;
2727 unsigned long flags
;
2731 mutex_lock(&priv
->mutex
);
2732 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
2734 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
2736 if (conf
->radio_enabled
&& iwl_radio_kill_sw_enable_radio(priv
)) {
2737 IWL_DEBUG_MAC80211("leave - RF-KILL - waiting for uCode\n");
2741 if (!conf
->radio_enabled
)
2742 iwl_radio_kill_sw_disable_radio(priv
);
2744 if (!iwl_is_ready(priv
)) {
2745 IWL_DEBUG_MAC80211("leave - not ready\n");
2750 if (unlikely(!priv
->cfg
->mod_params
->disable_hw_scan
&&
2751 test_bit(STATUS_SCANNING
, &priv
->status
))) {
2752 IWL_DEBUG_MAC80211("leave - scanning\n");
2753 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
2754 mutex_unlock(&priv
->mutex
);
2758 channel
= ieee80211_frequency_to_channel(conf
->channel
->center_freq
);
2759 ch_info
= iwl_get_channel_info(priv
, conf
->channel
->band
, channel
);
2760 if (!is_channel_valid(ch_info
)) {
2761 IWL_DEBUG_MAC80211("leave - invalid channel\n");
2766 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
&&
2767 !is_channel_ibss(ch_info
)) {
2768 IWL_ERROR("channel %d in band %d not IBSS channel\n",
2769 conf
->channel
->hw_value
, conf
->channel
->band
);
2774 spin_lock_irqsave(&priv
->lock
, flags
);
2776 /* if we are switching from ht to 2.4 clear flags
2777 * from any ht related info since 2.4 does not
2779 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != channel
)
2780 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
2781 && !(conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
)
2784 priv
->staging_rxon
.flags
= 0;
2786 iwl_set_rxon_channel(priv
, conf
->channel
->band
, channel
);
2788 iwl_set_flags_for_band(priv
, conf
->channel
->band
);
2790 /* The list of supported rates and rate mask can be different
2791 * for each band; since the band may have changed, reset
2792 * the rate mask to what mac80211 lists */
2793 iwl4965_set_rate(priv
);
2795 spin_unlock_irqrestore(&priv
->lock
, flags
);
2797 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
2798 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
2799 iwl4965_hw_channel_switch(priv
, conf
->channel
);
2804 if (!conf
->radio_enabled
) {
2805 IWL_DEBUG_MAC80211("leave - radio disabled\n");
2809 if (iwl_is_rfkill(priv
)) {
2810 IWL_DEBUG_MAC80211("leave - RF kill\n");
2815 IWL_DEBUG_MAC80211("TX Power old=%d new=%d\n",
2816 priv
->tx_power_user_lmt
, conf
->power_level
);
2818 iwl_set_tx_power(priv
, conf
->power_level
, false);
2820 iwl4965_set_rate(priv
);
2822 if (memcmp(&priv
->active_rxon
,
2823 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
2824 iwl4965_commit_rxon(priv
);
2826 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
2828 IWL_DEBUG_MAC80211("leave\n");
2831 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
2832 mutex_unlock(&priv
->mutex
);
2836 static void iwl4965_config_ap(struct iwl_priv
*priv
)
2839 unsigned long flags
;
2841 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
2844 /* The following should be done only at AP bring up */
2845 if (!(iwl_is_associated(priv
))) {
2847 /* RXON - unassoc (to set timing command) */
2848 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2849 iwl4965_commit_rxon(priv
);
2852 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
2853 iwl4965_setup_rxon_timing(priv
);
2854 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
2855 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
2857 IWL_WARNING("REPLY_RXON_TIMING failed - "
2858 "Attempting to continue.\n");
2860 iwl_set_rxon_chain(priv
);
2862 /* FIXME: what should be the assoc_id for AP? */
2863 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
2864 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
2865 priv
->staging_rxon
.flags
|=
2866 RXON_FLG_SHORT_PREAMBLE_MSK
;
2868 priv
->staging_rxon
.flags
&=
2869 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2871 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
2872 if (priv
->assoc_capability
&
2873 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
2874 priv
->staging_rxon
.flags
|=
2875 RXON_FLG_SHORT_SLOT_MSK
;
2877 priv
->staging_rxon
.flags
&=
2878 ~RXON_FLG_SHORT_SLOT_MSK
;
2880 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
2881 priv
->staging_rxon
.flags
&=
2882 ~RXON_FLG_SHORT_SLOT_MSK
;
2884 /* restore RXON assoc */
2885 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
2886 iwl4965_commit_rxon(priv
);
2887 spin_lock_irqsave(&priv
->lock
, flags
);
2888 iwl_activate_qos(priv
, 1);
2889 spin_unlock_irqrestore(&priv
->lock
, flags
);
2890 iwl_rxon_add_station(priv
, iwl_bcast_addr
, 0);
2892 iwl4965_send_beacon_cmd(priv
);
2894 /* FIXME - we need to add code here to detect a totally new
2895 * configuration, reset the AP, unassoc, rxon timing, assoc,
2896 * clear sta table, add BCAST sta... */
2900 static int iwl4965_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
);
2902 static int iwl4965_mac_config_interface(struct ieee80211_hw
*hw
,
2903 struct ieee80211_vif
*vif
,
2904 struct ieee80211_if_conf
*conf
)
2906 struct iwl_priv
*priv
= hw
->priv
;
2907 DECLARE_MAC_BUF(mac
);
2908 unsigned long flags
;
2914 if (priv
->vif
!= vif
) {
2915 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
2919 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
&&
2920 conf
->changed
& IEEE80211_IFCC_BEACON
) {
2921 struct sk_buff
*beacon
= ieee80211_beacon_get(hw
, vif
);
2924 rc
= iwl4965_mac_beacon_update(hw
, beacon
);
2929 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
2930 (!conf
->ssid_len
)) {
2932 ("Leaving in AP mode because HostAPD is not ready.\n");
2936 if (!iwl_is_alive(priv
))
2939 mutex_lock(&priv
->mutex
);
2942 IWL_DEBUG_MAC80211("bssid: %s\n",
2943 print_mac(mac
, conf
->bssid
));
2946 * very dubious code was here; the probe filtering flag is never set:
2948 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
2949 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
2952 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
2954 conf
->bssid
= priv
->mac_addr
;
2955 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
2956 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
2957 print_mac(mac
, conf
->bssid
));
2959 if (priv
->ibss_beacon
)
2960 dev_kfree_skb(priv
->ibss_beacon
);
2962 priv
->ibss_beacon
= ieee80211_beacon_get(hw
, vif
);
2965 if (iwl_is_rfkill(priv
))
2968 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
2969 !is_multicast_ether_addr(conf
->bssid
)) {
2970 /* If there is currently a HW scan going on in the background
2971 * then we need to cancel it else the RXON below will fail. */
2972 if (iwl_scan_cancel_timeout(priv
, 100)) {
2973 IWL_WARNING("Aborted scan still in progress "
2975 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
2976 mutex_unlock(&priv
->mutex
);
2979 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
2981 /* TODO: Audit driver for usage of these members and see
2982 * if mac80211 deprecates them (priv->bssid looks like it
2983 * shouldn't be there, but I haven't scanned the IBSS code
2984 * to verify) - jpk */
2985 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
2987 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
2988 iwl4965_config_ap(priv
);
2990 rc
= iwl4965_commit_rxon(priv
);
2991 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
2992 iwl_rxon_add_station(
2993 priv
, priv
->active_rxon
.bssid_addr
, 1);
2997 iwl_scan_cancel_timeout(priv
, 100);
2998 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
2999 iwl4965_commit_rxon(priv
);
3003 spin_lock_irqsave(&priv
->lock
, flags
);
3004 if (!conf
->ssid_len
)
3005 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
3007 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
3009 priv
->essid_len
= conf
->ssid_len
;
3010 spin_unlock_irqrestore(&priv
->lock
, flags
);
3012 IWL_DEBUG_MAC80211("leave\n");
3013 mutex_unlock(&priv
->mutex
);
3018 static void iwl4965_configure_filter(struct ieee80211_hw
*hw
,
3019 unsigned int changed_flags
,
3020 unsigned int *total_flags
,
3021 int mc_count
, struct dev_addr_list
*mc_list
)
3023 struct iwl_priv
*priv
= hw
->priv
;
3025 if (changed_flags
& (*total_flags
) & FIF_OTHER_BSS
) {
3026 IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n",
3027 IEEE80211_IF_TYPE_MNTR
,
3028 changed_flags
, *total_flags
);
3029 /* queue work 'cuz mac80211 is holding a lock which
3030 * prevents us from issuing (synchronous) f/w cmds */
3031 queue_work(priv
->workqueue
, &priv
->set_monitor
);
3033 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
|
3034 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
3037 static void iwl4965_mac_remove_interface(struct ieee80211_hw
*hw
,
3038 struct ieee80211_if_init_conf
*conf
)
3040 struct iwl_priv
*priv
= hw
->priv
;
3042 IWL_DEBUG_MAC80211("enter\n");
3044 mutex_lock(&priv
->mutex
);
3046 if (iwl_is_ready_rf(priv
)) {
3047 iwl_scan_cancel_timeout(priv
, 100);
3048 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
3049 iwl4965_commit_rxon(priv
);
3051 if (priv
->vif
== conf
->vif
) {
3053 memset(priv
->bssid
, 0, ETH_ALEN
);
3054 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
3055 priv
->essid_len
= 0;
3057 mutex_unlock(&priv
->mutex
);
3059 IWL_DEBUG_MAC80211("leave\n");
3063 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
3064 static void iwl4965_bss_info_changed(struct ieee80211_hw
*hw
,
3065 struct ieee80211_vif
*vif
,
3066 struct ieee80211_bss_conf
*bss_conf
,
3069 struct iwl_priv
*priv
= hw
->priv
;
3071 IWL_DEBUG_MAC80211("changes = 0x%X\n", changes
);
3073 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
3074 IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
3075 bss_conf
->use_short_preamble
);
3076 if (bss_conf
->use_short_preamble
)
3077 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
3079 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
3082 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
3083 IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf
->use_cts_prot
);
3084 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
3085 priv
->staging_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
3087 priv
->staging_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
3090 if (changes
& BSS_CHANGED_HT
) {
3091 IWL_DEBUG_MAC80211("HT %d\n", bss_conf
->assoc_ht
);
3092 iwl4965_ht_conf(priv
, bss_conf
);
3093 iwl_set_rxon_chain(priv
);
3096 if (changes
& BSS_CHANGED_ASSOC
) {
3097 IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf
->assoc
);
3098 /* This should never happen as this function should
3099 * never be called from interrupt context. */
3100 if (WARN_ON_ONCE(in_interrupt()))
3102 if (bss_conf
->assoc
) {
3103 priv
->assoc_id
= bss_conf
->aid
;
3104 priv
->beacon_int
= bss_conf
->beacon_int
;
3105 priv
->timestamp
= bss_conf
->timestamp
;
3106 priv
->assoc_capability
= bss_conf
->assoc_capability
;
3107 priv
->next_scan_jiffies
= jiffies
+
3108 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC
;
3109 mutex_lock(&priv
->mutex
);
3110 iwl4965_post_associate(priv
);
3111 mutex_unlock(&priv
->mutex
);
3114 IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf
->assoc
);
3116 } else if (changes
&& iwl_is_associated(priv
) && priv
->assoc_id
) {
3117 IWL_DEBUG_MAC80211("Associated Changes %d\n", changes
);
3118 iwl_send_rxon_assoc(priv
);
3123 static int iwl4965_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
3126 unsigned long flags
;
3127 struct iwl_priv
*priv
= hw
->priv
;
3129 IWL_DEBUG_MAC80211("enter\n");
3131 mutex_lock(&priv
->mutex
);
3132 spin_lock_irqsave(&priv
->lock
, flags
);
3134 if (!iwl_is_ready_rf(priv
)) {
3136 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
3140 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
3142 IWL_ERROR("ERROR: APs don't scan\n");
3146 /* we don't schedule scan within next_scan_jiffies period */
3147 if (priv
->next_scan_jiffies
&&
3148 time_after(priv
->next_scan_jiffies
, jiffies
)) {
3152 /* if we just finished scan ask for delay */
3153 if (priv
->last_scan_jiffies
&& time_after(priv
->last_scan_jiffies
+
3154 IWL_DELAY_NEXT_SCAN
, jiffies
)) {
3159 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
3160 iwl_escape_essid(ssid
, len
), (int)len
);
3162 priv
->one_direct_scan
= 1;
3163 priv
->direct_ssid_len
= (u8
)
3164 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
3165 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
3167 priv
->one_direct_scan
= 0;
3169 rc
= iwl_scan_initiate(priv
);
3171 IWL_DEBUG_MAC80211("leave\n");
3174 spin_unlock_irqrestore(&priv
->lock
, flags
);
3175 mutex_unlock(&priv
->mutex
);
3180 static void iwl4965_mac_update_tkip_key(struct ieee80211_hw
*hw
,
3181 struct ieee80211_key_conf
*keyconf
, const u8
*addr
,
3182 u32 iv32
, u16
*phase1key
)
3184 struct iwl_priv
*priv
= hw
->priv
;
3185 u8 sta_id
= IWL_INVALID_STATION
;
3186 unsigned long flags
;
3187 __le16 key_flags
= 0;
3189 DECLARE_MAC_BUF(mac
);
3191 IWL_DEBUG_MAC80211("enter\n");
3193 sta_id
= iwl_find_station(priv
, addr
);
3194 if (sta_id
== IWL_INVALID_STATION
) {
3195 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
3196 print_mac(mac
, addr
));
3200 iwl_scan_cancel_timeout(priv
, 100);
3202 key_flags
|= (STA_KEY_FLG_TKIP
| STA_KEY_FLG_MAP_KEY_MSK
);
3203 key_flags
|= cpu_to_le16(keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
3204 key_flags
&= ~STA_KEY_FLG_INVALID
;
3206 if (sta_id
== priv
->hw_params
.bcast_sta_id
)
3207 key_flags
|= STA_KEY_MULTICAST_MSK
;
3209 spin_lock_irqsave(&priv
->sta_lock
, flags
);
3211 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
3212 priv
->stations
[sta_id
].sta
.key
.tkip_rx_tsc_byte2
= (u8
) iv32
;
3214 for (i
= 0; i
< 5; i
++)
3215 priv
->stations
[sta_id
].sta
.key
.tkip_rx_ttak
[i
] =
3216 cpu_to_le16(phase1key
[i
]);
3218 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
3219 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
3221 iwl_send_add_sta(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
3223 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
3225 IWL_DEBUG_MAC80211("leave\n");
3228 static int iwl4965_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
3229 const u8
*local_addr
, const u8
*addr
,
3230 struct ieee80211_key_conf
*key
)
3232 struct iwl_priv
*priv
= hw
->priv
;
3233 DECLARE_MAC_BUF(mac
);
3235 u8 sta_id
= IWL_INVALID_STATION
;
3236 u8 is_default_wep_key
= 0;
3238 IWL_DEBUG_MAC80211("enter\n");
3240 if (priv
->hw_params
.sw_crypto
) {
3241 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
3245 if (is_zero_ether_addr(addr
))
3246 /* only support pairwise keys */
3249 sta_id
= iwl_find_station(priv
, addr
);
3250 if (sta_id
== IWL_INVALID_STATION
) {
3251 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
3252 print_mac(mac
, addr
));
3257 mutex_lock(&priv
->mutex
);
3258 iwl_scan_cancel_timeout(priv
, 100);
3259 mutex_unlock(&priv
->mutex
);
3261 /* If we are getting WEP group key and we didn't receive any key mapping
3262 * so far, we are in legacy wep mode (group key only), otherwise we are
3264 * In legacy wep mode, we use another host command to the uCode */
3265 if (key
->alg
== ALG_WEP
&& sta_id
== priv
->hw_params
.bcast_sta_id
&&
3266 priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
3268 is_default_wep_key
= !priv
->key_mapping_key
;
3270 is_default_wep_key
=
3271 (key
->hw_key_idx
== HW_KEY_DEFAULT
);
3276 if (is_default_wep_key
)
3277 ret
= iwl_set_default_wep_key(priv
, key
);
3279 ret
= iwl_set_dynamic_key(priv
, key
, sta_id
);
3281 IWL_DEBUG_MAC80211("enable hwcrypto key\n");
3284 if (is_default_wep_key
)
3285 ret
= iwl_remove_default_wep_key(priv
, key
);
3287 ret
= iwl_remove_dynamic_key(priv
, key
, sta_id
);
3289 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
3295 IWL_DEBUG_MAC80211("leave\n");
3300 static int iwl4965_mac_conf_tx(struct ieee80211_hw
*hw
, u16 queue
,
3301 const struct ieee80211_tx_queue_params
*params
)
3303 struct iwl_priv
*priv
= hw
->priv
;
3304 unsigned long flags
;
3307 IWL_DEBUG_MAC80211("enter\n");
3309 if (!iwl_is_ready_rf(priv
)) {
3310 IWL_DEBUG_MAC80211("leave - RF not ready\n");
3314 if (queue
>= AC_NUM
) {
3315 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
3319 if (!priv
->qos_data
.qos_enable
) {
3320 priv
->qos_data
.qos_active
= 0;
3321 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
3324 q
= AC_NUM
- 1 - queue
;
3326 spin_lock_irqsave(&priv
->lock
, flags
);
3328 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
3329 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
3330 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
3331 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
3332 cpu_to_le16((params
->txop
* 32));
3334 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
3335 priv
->qos_data
.qos_active
= 1;
3337 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
3338 iwl_activate_qos(priv
, 1);
3339 else if (priv
->assoc_id
&& iwl_is_associated(priv
))
3340 iwl_activate_qos(priv
, 0);
3342 spin_unlock_irqrestore(&priv
->lock
, flags
);
3344 IWL_DEBUG_MAC80211("leave\n");
3348 static int iwl4965_mac_get_tx_stats(struct ieee80211_hw
*hw
,
3349 struct ieee80211_tx_queue_stats
*stats
)
3351 struct iwl_priv
*priv
= hw
->priv
;
3353 struct iwl_tx_queue
*txq
;
3354 struct iwl_queue
*q
;
3355 unsigned long flags
;
3357 IWL_DEBUG_MAC80211("enter\n");
3359 if (!iwl_is_ready_rf(priv
)) {
3360 IWL_DEBUG_MAC80211("leave - RF not ready\n");
3364 spin_lock_irqsave(&priv
->lock
, flags
);
3366 for (i
= 0; i
< AC_NUM
; i
++) {
3367 txq
= &priv
->txq
[i
];
3369 avail
= iwl_queue_space(q
);
3371 stats
[i
].len
= q
->n_window
- avail
;
3372 stats
[i
].limit
= q
->n_window
- q
->high_mark
;
3373 stats
[i
].count
= q
->n_window
;
3376 spin_unlock_irqrestore(&priv
->lock
, flags
);
3378 IWL_DEBUG_MAC80211("leave\n");
3383 static int iwl4965_mac_get_stats(struct ieee80211_hw
*hw
,
3384 struct ieee80211_low_level_stats
*stats
)
3386 struct iwl_priv
*priv
= hw
->priv
;
3389 IWL_DEBUG_MAC80211("enter\n");
3390 IWL_DEBUG_MAC80211("leave\n");
3395 static void iwl4965_mac_reset_tsf(struct ieee80211_hw
*hw
)
3397 struct iwl_priv
*priv
= hw
->priv
;
3398 unsigned long flags
;
3400 mutex_lock(&priv
->mutex
);
3401 IWL_DEBUG_MAC80211("enter\n");
3403 spin_lock_irqsave(&priv
->lock
, flags
);
3404 memset(&priv
->current_ht_config
, 0, sizeof(struct iwl_ht_info
));
3405 spin_unlock_irqrestore(&priv
->lock
, flags
);
3407 iwl_reset_qos(priv
);
3409 spin_lock_irqsave(&priv
->lock
, flags
);
3411 priv
->assoc_capability
= 0;
3412 priv
->assoc_station_added
= 0;
3414 /* new association get rid of ibss beacon skb */
3415 if (priv
->ibss_beacon
)
3416 dev_kfree_skb(priv
->ibss_beacon
);
3418 priv
->ibss_beacon
= NULL
;
3420 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
3421 priv
->timestamp
= 0;
3422 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
3423 priv
->beacon_int
= 0;
3425 spin_unlock_irqrestore(&priv
->lock
, flags
);
3427 if (!iwl_is_ready_rf(priv
)) {
3428 IWL_DEBUG_MAC80211("leave - not ready\n");
3429 mutex_unlock(&priv
->mutex
);
3433 /* we are restarting association process
3434 * clear RXON_FILTER_ASSOC_MSK bit
3436 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
3437 iwl_scan_cancel_timeout(priv
, 100);
3438 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
3439 iwl4965_commit_rxon(priv
);
3442 iwl_power_update_mode(priv
, 0);
3444 /* Per mac80211.h: This is only used in IBSS mode... */
3445 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
3447 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
3448 mutex_unlock(&priv
->mutex
);
3452 iwl4965_set_rate(priv
);
3454 mutex_unlock(&priv
->mutex
);
3456 IWL_DEBUG_MAC80211("leave\n");
3459 static int iwl4965_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
3461 struct iwl_priv
*priv
= hw
->priv
;
3462 unsigned long flags
;
3465 mutex_lock(&priv
->mutex
);
3466 IWL_DEBUG_MAC80211("enter\n");
3468 if (!iwl_is_ready_rf(priv
)) {
3469 IWL_DEBUG_MAC80211("leave - RF not ready\n");
3470 mutex_unlock(&priv
->mutex
);
3474 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
3475 IWL_DEBUG_MAC80211("leave - not IBSS\n");
3476 mutex_unlock(&priv
->mutex
);
3480 spin_lock_irqsave(&priv
->lock
, flags
);
3482 if (priv
->ibss_beacon
)
3483 dev_kfree_skb(priv
->ibss_beacon
);
3485 priv
->ibss_beacon
= skb
;
3488 timestamp
= ((struct ieee80211_mgmt
*)skb
->data
)->u
.beacon
.timestamp
;
3489 priv
->timestamp
= le64_to_cpu(timestamp
) + (priv
->beacon_int
* 1000);
3491 IWL_DEBUG_MAC80211("leave\n");
3492 spin_unlock_irqrestore(&priv
->lock
, flags
);
3494 iwl_reset_qos(priv
);
3496 iwl4965_post_associate(priv
);
3498 mutex_unlock(&priv
->mutex
);
3503 /*****************************************************************************
3507 *****************************************************************************/
3509 #ifdef CONFIG_IWLWIFI_DEBUG
3512 * The following adds a new attribute to the sysfs representation
3513 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
3514 * used for controlling the debug level.
3516 * See the level definitions in iwl for details.
3519 static ssize_t
show_debug_level(struct device
*d
,
3520 struct device_attribute
*attr
, char *buf
)
3522 struct iwl_priv
*priv
= d
->driver_data
;
3524 return sprintf(buf
, "0x%08X\n", priv
->debug_level
);
3526 static ssize_t
store_debug_level(struct device
*d
,
3527 struct device_attribute
*attr
,
3528 const char *buf
, size_t count
)
3530 struct iwl_priv
*priv
= d
->driver_data
;
3531 char *p
= (char *)buf
;
3534 val
= simple_strtoul(p
, &p
, 0);
3536 printk(KERN_INFO DRV_NAME
3537 ": %s is not in hex or decimal form.\n", buf
);
3539 priv
->debug_level
= val
;
3541 return strnlen(buf
, count
);
3544 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
3545 show_debug_level
, store_debug_level
);
3548 #endif /* CONFIG_IWLWIFI_DEBUG */
3551 static ssize_t
show_version(struct device
*d
,
3552 struct device_attribute
*attr
, char *buf
)
3554 struct iwl_priv
*priv
= d
->driver_data
;
3555 struct iwl_alive_resp
*palive
= &priv
->card_alive
;
3559 if (palive
->is_valid
)
3560 pos
+= sprintf(buf
+ pos
,
3561 "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n"
3562 "fw type: 0x%01X 0x%01X\n",
3563 palive
->ucode_major
, palive
->ucode_minor
,
3564 palive
->sw_rev
[0], palive
->sw_rev
[1],
3565 palive
->ver_type
, palive
->ver_subtype
);
3567 pos
+= sprintf(buf
+ pos
, "fw not loaded\n");
3570 eeprom_ver
= iwl_eeprom_query16(priv
, EEPROM_VERSION
);
3571 pos
+= sprintf(buf
+ pos
, "EEPROM version: 0x%x\n",
3574 pos
+= sprintf(buf
+ pos
, "EEPROM not initialzed\n");
3580 static DEVICE_ATTR(version
, S_IWUSR
| S_IRUGO
, show_version
, NULL
);
3582 static ssize_t
show_temperature(struct device
*d
,
3583 struct device_attribute
*attr
, char *buf
)
3585 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
3587 if (!iwl_is_alive(priv
))
3590 return sprintf(buf
, "%d\n", priv
->temperature
);
3593 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
3595 static ssize_t
show_rs_window(struct device
*d
,
3596 struct device_attribute
*attr
,
3599 struct iwl_priv
*priv
= d
->driver_data
;
3600 return iwl4965_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
3602 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
3604 static ssize_t
show_tx_power(struct device
*d
,
3605 struct device_attribute
*attr
, char *buf
)
3607 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
3608 return sprintf(buf
, "%d\n", priv
->tx_power_user_lmt
);
3611 static ssize_t
store_tx_power(struct device
*d
,
3612 struct device_attribute
*attr
,
3613 const char *buf
, size_t count
)
3615 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
3616 char *p
= (char *)buf
;
3619 val
= simple_strtoul(p
, &p
, 10);
3621 printk(KERN_INFO DRV_NAME
3622 ": %s is not in decimal form.\n", buf
);
3624 iwl_set_tx_power(priv
, val
, false);
3629 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
3631 static ssize_t
show_flags(struct device
*d
,
3632 struct device_attribute
*attr
, char *buf
)
3634 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
3636 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
3639 static ssize_t
store_flags(struct device
*d
,
3640 struct device_attribute
*attr
,
3641 const char *buf
, size_t count
)
3643 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
3644 u32 flags
= simple_strtoul(buf
, NULL
, 0);
3646 mutex_lock(&priv
->mutex
);
3647 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
3648 /* Cancel any currently running scans... */
3649 if (iwl_scan_cancel_timeout(priv
, 100))
3650 IWL_WARNING("Could not cancel scan.\n");
3652 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
3654 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
3655 iwl4965_commit_rxon(priv
);
3658 mutex_unlock(&priv
->mutex
);
3663 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
3665 static ssize_t
show_filter_flags(struct device
*d
,
3666 struct device_attribute
*attr
, char *buf
)
3668 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
3670 return sprintf(buf
, "0x%04X\n",
3671 le32_to_cpu(priv
->active_rxon
.filter_flags
));
3674 static ssize_t
store_filter_flags(struct device
*d
,
3675 struct device_attribute
*attr
,
3676 const char *buf
, size_t count
)
3678 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
3679 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
3681 mutex_lock(&priv
->mutex
);
3682 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
3683 /* Cancel any currently running scans... */
3684 if (iwl_scan_cancel_timeout(priv
, 100))
3685 IWL_WARNING("Could not cancel scan.\n");
3687 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
3688 "0x%04X\n", filter_flags
);
3689 priv
->staging_rxon
.filter_flags
=
3690 cpu_to_le32(filter_flags
);
3691 iwl4965_commit_rxon(priv
);
3694 mutex_unlock(&priv
->mutex
);
3699 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
3700 store_filter_flags
);
3702 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
3704 static ssize_t
show_measurement(struct device
*d
,
3705 struct device_attribute
*attr
, char *buf
)
3707 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3708 struct iwl4965_spectrum_notification measure_report
;
3709 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
3710 u8
*data
= (u8
*) & measure_report
;
3711 unsigned long flags
;
3713 spin_lock_irqsave(&priv
->lock
, flags
);
3714 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
3715 spin_unlock_irqrestore(&priv
->lock
, flags
);
3718 memcpy(&measure_report
, &priv
->measure_report
, size
);
3719 priv
->measurement_status
= 0;
3720 spin_unlock_irqrestore(&priv
->lock
, flags
);
3722 while (size
&& (PAGE_SIZE
- len
)) {
3723 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
3724 PAGE_SIZE
- len
, 1);
3726 if (PAGE_SIZE
- len
)
3730 size
-= min(size
, 16U);
3736 static ssize_t
store_measurement(struct device
*d
,
3737 struct device_attribute
*attr
,
3738 const char *buf
, size_t count
)
3740 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3741 struct ieee80211_measurement_params params
= {
3742 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
3743 .start_time
= cpu_to_le64(priv
->last_tsf
),
3744 .duration
= cpu_to_le16(1),
3746 u8 type
= IWL_MEASURE_BASIC
;
3752 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
3753 channel
= simple_strtoul(p
, NULL
, 0);
3755 params
.channel
= channel
;
3758 while (*p
&& *p
!= ' ')
3761 type
= simple_strtoul(p
+ 1, NULL
, 0);
3764 IWL_DEBUG_INFO("Invoking measurement of type %d on "
3765 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
3766 iwl4965_get_measurement(priv
, ¶ms
, type
);
3771 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
3772 show_measurement
, store_measurement
);
3773 #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
3775 static ssize_t
store_retry_rate(struct device
*d
,
3776 struct device_attribute
*attr
,
3777 const char *buf
, size_t count
)
3779 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3781 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
3782 if (priv
->retry_rate
<= 0)
3783 priv
->retry_rate
= 1;
3788 static ssize_t
show_retry_rate(struct device
*d
,
3789 struct device_attribute
*attr
, char *buf
)
3791 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3792 return sprintf(buf
, "%d", priv
->retry_rate
);
3795 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
3798 static ssize_t
store_power_level(struct device
*d
,
3799 struct device_attribute
*attr
,
3800 const char *buf
, size_t count
)
3802 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3806 mode
= simple_strtoul(buf
, NULL
, 0);
3807 mutex_lock(&priv
->mutex
);
3809 if (!iwl_is_ready(priv
)) {
3814 rc
= iwl_power_set_user_mode(priv
, mode
);
3816 IWL_DEBUG_MAC80211("failed setting power mode.\n");
3822 mutex_unlock(&priv
->mutex
);
3826 #define MAX_WX_STRING 80
3828 /* Values are in microsecond */
3829 static const s32 timeout_duration
[] = {
3836 static const s32 period_duration
[] = {
3844 static ssize_t
show_power_level(struct device
*d
,
3845 struct device_attribute
*attr
, char *buf
)
3847 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3848 int level
= priv
->power_data
.power_mode
;
3851 p
+= sprintf(p
, "%d ", level
);
3853 case IWL_POWER_MODE_CAM
:
3855 p
+= sprintf(p
, "(AC)");
3857 case IWL_POWER_BATTERY
:
3858 p
+= sprintf(p
, "(BATTERY)");
3862 "(Timeout %dms, Period %dms)",
3863 timeout_duration
[level
- 1] / 1000,
3864 period_duration
[level
- 1] / 1000);
3867 if (!(priv->power_mode & IWL_POWER_ENABLED))
3868 p += sprintf(p, " OFF\n");
3870 p += sprintf(p, " \n");
3872 p
+= sprintf(p
, " \n");
3873 return (p
- buf
+ 1);
3876 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
3879 static ssize_t
show_channels(struct device
*d
,
3880 struct device_attribute
*attr
, char *buf
)
3883 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3884 struct ieee80211_channel
*channels
= NULL
;
3885 const struct ieee80211_supported_band
*supp_band
= NULL
;
3889 if (!test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
))
3892 supp_band
= iwl_get_hw_mode(priv
, IEEE80211_BAND_2GHZ
);
3893 channels
= supp_band
->channels
;
3894 count
= supp_band
->n_channels
;
3896 len
+= sprintf(&buf
[len
],
3897 "Displaying %d channels in 2.4GHz band "
3898 "(802.11bg):\n", count
);
3900 for (i
= 0; i
< count
; i
++)
3901 len
+= sprintf(&buf
[len
], "%d: %ddBm: BSS%s%s, %s.\n",
3902 ieee80211_frequency_to_channel(
3903 channels
[i
].center_freq
),
3904 channels
[i
].max_power
,
3905 channels
[i
].flags
& IEEE80211_CHAN_RADAR
?
3906 " (IEEE 802.11h required)" : "",
3907 (!(channels
[i
].flags
& IEEE80211_CHAN_NO_IBSS
)
3908 || (channels
[i
].flags
&
3909 IEEE80211_CHAN_RADAR
)) ? "" :
3912 IEEE80211_CHAN_PASSIVE_SCAN
?
3913 "passive only" : "active/passive");
3915 supp_band
= iwl_get_hw_mode(priv
, IEEE80211_BAND_5GHZ
);
3916 channels
= supp_band
->channels
;
3917 count
= supp_band
->n_channels
;
3919 len
+= sprintf(&buf
[len
], "Displaying %d channels in 5.2GHz band "
3920 "(802.11a):\n", count
);
3922 for (i
= 0; i
< count
; i
++)
3923 len
+= sprintf(&buf
[len
], "%d: %ddBm: BSS%s%s, %s.\n",
3924 ieee80211_frequency_to_channel(
3925 channels
[i
].center_freq
),
3926 channels
[i
].max_power
,
3927 channels
[i
].flags
& IEEE80211_CHAN_RADAR
?
3928 " (IEEE 802.11h required)" : "",
3929 ((channels
[i
].flags
& IEEE80211_CHAN_NO_IBSS
)
3930 || (channels
[i
].flags
&
3931 IEEE80211_CHAN_RADAR
)) ? "" :
3934 IEEE80211_CHAN_PASSIVE_SCAN
?
3935 "passive only" : "active/passive");
3940 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
3942 static ssize_t
show_statistics(struct device
*d
,
3943 struct device_attribute
*attr
, char *buf
)
3945 struct iwl_priv
*priv
= dev_get_drvdata(d
);
3946 u32 size
= sizeof(struct iwl_notif_statistics
);
3947 u32 len
= 0, ofs
= 0;
3948 u8
*data
= (u8
*) & priv
->statistics
;
3951 if (!iwl_is_alive(priv
))
3954 mutex_lock(&priv
->mutex
);
3955 rc
= iwl_send_statistics_request(priv
, 0);
3956 mutex_unlock(&priv
->mutex
);
3960 "Error sending statistics request: 0x%08X\n", rc
);
3964 while (size
&& (PAGE_SIZE
- len
)) {
3965 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
3966 PAGE_SIZE
- len
, 1);
3968 if (PAGE_SIZE
- len
)
3972 size
-= min(size
, 16U);
3978 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
3980 static ssize_t
show_status(struct device
*d
,
3981 struct device_attribute
*attr
, char *buf
)
3983 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
3984 if (!iwl_is_alive(priv
))
3986 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
3989 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
3991 /*****************************************************************************
3993 * driver setup and teardown
3995 *****************************************************************************/
3997 static void iwl_setup_deferred_work(struct iwl_priv
*priv
)
3999 priv
->workqueue
= create_workqueue(DRV_NAME
);
4001 init_waitqueue_head(&priv
->wait_command_queue
);
4003 INIT_WORK(&priv
->up
, iwl4965_bg_up
);
4004 INIT_WORK(&priv
->restart
, iwl4965_bg_restart
);
4005 INIT_WORK(&priv
->rx_replenish
, iwl4965_bg_rx_replenish
);
4006 INIT_WORK(&priv
->rf_kill
, iwl4965_bg_rf_kill
);
4007 INIT_WORK(&priv
->beacon_update
, iwl4965_bg_beacon_update
);
4008 INIT_WORK(&priv
->set_monitor
, iwl4965_bg_set_monitor
);
4009 INIT_WORK(&priv
->run_time_calib_work
, iwl_bg_run_time_calib_work
);
4010 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl_bg_init_alive_start
);
4011 INIT_DELAYED_WORK(&priv
->alive_start
, iwl_bg_alive_start
);
4013 /* FIXME : remove when resolved PENDING */
4014 INIT_WORK(&priv
->scan_completed
, iwl_bg_scan_completed
);
4015 iwl_setup_scan_deferred_work(priv
);
4017 if (priv
->cfg
->ops
->lib
->setup_deferred_work
)
4018 priv
->cfg
->ops
->lib
->setup_deferred_work(priv
);
4020 init_timer(&priv
->statistics_periodic
);
4021 priv
->statistics_periodic
.data
= (unsigned long)priv
;
4022 priv
->statistics_periodic
.function
= iwl4965_bg_statistics_periodic
;
4024 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
4025 iwl4965_irq_tasklet
, (unsigned long)priv
);
4028 static void iwl_cancel_deferred_work(struct iwl_priv
*priv
)
4030 if (priv
->cfg
->ops
->lib
->cancel_deferred_work
)
4031 priv
->cfg
->ops
->lib
->cancel_deferred_work(priv
);
4033 cancel_delayed_work_sync(&priv
->init_alive_start
);
4034 cancel_delayed_work(&priv
->scan_check
);
4035 cancel_delayed_work(&priv
->alive_start
);
4036 cancel_work_sync(&priv
->beacon_update
);
4037 del_timer_sync(&priv
->statistics_periodic
);
4040 static struct attribute
*iwl4965_sysfs_entries
[] = {
4041 &dev_attr_channels
.attr
,
4042 &dev_attr_flags
.attr
,
4043 &dev_attr_filter_flags
.attr
,
4044 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
4045 &dev_attr_measurement
.attr
,
4047 &dev_attr_power_level
.attr
,
4048 &dev_attr_retry_rate
.attr
,
4049 &dev_attr_rs_window
.attr
,
4050 &dev_attr_statistics
.attr
,
4051 &dev_attr_status
.attr
,
4052 &dev_attr_temperature
.attr
,
4053 &dev_attr_tx_power
.attr
,
4054 #ifdef CONFIG_IWLWIFI_DEBUG
4055 &dev_attr_debug_level
.attr
,
4057 &dev_attr_version
.attr
,
4062 static struct attribute_group iwl4965_attribute_group
= {
4063 .name
= NULL
, /* put in device directory */
4064 .attrs
= iwl4965_sysfs_entries
,
4067 static struct ieee80211_ops iwl4965_hw_ops
= {
4068 .tx
= iwl4965_mac_tx
,
4069 .start
= iwl4965_mac_start
,
4070 .stop
= iwl4965_mac_stop
,
4071 .add_interface
= iwl4965_mac_add_interface
,
4072 .remove_interface
= iwl4965_mac_remove_interface
,
4073 .config
= iwl4965_mac_config
,
4074 .config_interface
= iwl4965_mac_config_interface
,
4075 .configure_filter
= iwl4965_configure_filter
,
4076 .set_key
= iwl4965_mac_set_key
,
4077 .update_tkip_key
= iwl4965_mac_update_tkip_key
,
4078 .get_stats
= iwl4965_mac_get_stats
,
4079 .get_tx_stats
= iwl4965_mac_get_tx_stats
,
4080 .conf_tx
= iwl4965_mac_conf_tx
,
4081 .reset_tsf
= iwl4965_mac_reset_tsf
,
4082 .bss_info_changed
= iwl4965_bss_info_changed
,
4083 .ampdu_action
= iwl4965_mac_ampdu_action
,
4084 .hw_scan
= iwl4965_mac_hw_scan
4087 static int iwl4965_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
4090 struct iwl_priv
*priv
;
4091 struct ieee80211_hw
*hw
;
4092 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
4093 unsigned long flags
;
4094 DECLARE_MAC_BUF(mac
);
4096 /************************
4097 * 1. Allocating HW data
4098 ************************/
4100 /* Disabling hardware scan means that mac80211 will perform scans
4101 * "the hard way", rather than using device's scan. */
4102 if (cfg
->mod_params
->disable_hw_scan
) {
4103 if (cfg
->mod_params
->debug
& IWL_DL_INFO
)
4104 dev_printk(KERN_DEBUG
, &(pdev
->dev
),
4105 "Disabling hw_scan\n");
4106 iwl4965_hw_ops
.hw_scan
= NULL
;
4109 hw
= iwl_alloc_all(cfg
, &iwl4965_hw_ops
);
4115 /* At this point both hw and priv are allocated. */
4117 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
4119 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
4121 priv
->pci_dev
= pdev
;
4123 #ifdef CONFIG_IWLWIFI_DEBUG
4124 priv
->debug_level
= priv
->cfg
->mod_params
->debug
;
4125 atomic_set(&priv
->restrict_refcnt
, 0);
4128 /**************************
4129 * 2. Initializing PCI bus
4130 **************************/
4131 if (pci_enable_device(pdev
)) {
4133 goto out_ieee80211_free_hw
;
4136 pci_set_master(pdev
);
4138 err
= pci_set_dma_mask(pdev
, DMA_64BIT_MASK
);
4140 err
= pci_set_consistent_dma_mask(pdev
, DMA_64BIT_MASK
);
4142 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
4144 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
4145 /* both attempts failed: */
4147 printk(KERN_WARNING
"%s: No suitable DMA available.\n",
4149 goto out_pci_disable_device
;
4153 err
= pci_request_regions(pdev
, DRV_NAME
);
4155 goto out_pci_disable_device
;
4157 pci_set_drvdata(pdev
, priv
);
4159 /* We disable the RETRY_TIMEOUT register (0x41) to keep
4160 * PCI Tx retries from interfering with C3 CPU state */
4161 pci_write_config_byte(pdev
, 0x41, 0x00);
4163 /***********************
4164 * 3. Read REV register
4165 ***********************/
4166 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
4167 if (!priv
->hw_base
) {
4169 goto out_pci_release_regions
;
4172 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
4173 (unsigned long long) pci_resource_len(pdev
, 0));
4174 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
4176 iwl_hw_detect(priv
);
4177 printk(KERN_INFO DRV_NAME
4178 ": Detected Intel Wireless WiFi Link %s REV=0x%X\n",
4179 priv
->cfg
->name
, priv
->hw_rev
);
4182 err
= priv
->cfg
->ops
->lib
->apm_ops
.init(priv
);
4184 IWL_DEBUG_INFO("Failed to init APMG\n");
4190 /* Read the EEPROM */
4191 err
= iwl_eeprom_init(priv
);
4193 IWL_ERROR("Unable to init EEPROM\n");
4196 err
= iwl_eeprom_check_version(priv
);
4200 /* extract MAC Address */
4201 iwl_eeprom_get_mac(priv
, priv
->mac_addr
);
4202 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac
, priv
->mac_addr
));
4203 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
4205 /************************
4206 * 5. Setup HW constants
4207 ************************/
4208 if (iwl_set_hw_params(priv
)) {
4209 IWL_ERROR("failed to set hw parameters\n");
4210 goto out_free_eeprom
;
4213 /*******************
4215 *******************/
4217 err
= iwl_init_drv(priv
);
4219 goto out_free_eeprom
;
4220 /* At this point both hw and priv are initialized. */
4222 /**********************************
4223 * 7. Initialize module parameters
4224 **********************************/
4226 /* Disable radio (SW RF KILL) via parameter when loading driver */
4227 if (priv
->cfg
->mod_params
->disable
) {
4228 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
4229 IWL_DEBUG_INFO("Radio disabled.\n");
4232 /********************
4234 ********************/
4235 spin_lock_irqsave(&priv
->lock
, flags
);
4236 iwl4965_disable_interrupts(priv
);
4237 spin_unlock_irqrestore(&priv
->lock
, flags
);
4239 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
4241 IWL_ERROR("failed to create sysfs device attributes\n");
4242 goto out_uninit_drv
;
4246 iwl_setup_deferred_work(priv
);
4247 iwl_setup_rx_handlers(priv
);
4249 /********************
4251 ********************/
4252 pci_save_state(pdev
);
4253 pci_disable_device(pdev
);
4255 /**********************************
4256 * 10. Setup and register mac80211
4257 **********************************/
4259 err
= iwl_setup_mac(priv
);
4261 goto out_remove_sysfs
;
4263 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
4265 IWL_ERROR("failed to create debugfs files\n");
4267 err
= iwl_rfkill_init(priv
);
4269 IWL_ERROR("Unable to initialize RFKILL system. "
4270 "Ignoring error: %d\n", err
);
4271 iwl_power_initialize(priv
);
4275 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
4277 iwl_uninit_drv(priv
);
4279 iwl_eeprom_free(priv
);
4281 pci_iounmap(pdev
, priv
->hw_base
);
4282 out_pci_release_regions
:
4283 pci_release_regions(pdev
);
4284 pci_set_drvdata(pdev
, NULL
);
4285 out_pci_disable_device
:
4286 pci_disable_device(pdev
);
4287 out_ieee80211_free_hw
:
4288 ieee80211_free_hw(priv
->hw
);
4293 static void __devexit
iwl4965_pci_remove(struct pci_dev
*pdev
)
4295 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
4296 unsigned long flags
;
4301 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
4303 iwl_dbgfs_unregister(priv
);
4304 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
4306 if (priv
->mac80211_registered
) {
4307 ieee80211_unregister_hw(priv
->hw
);
4308 priv
->mac80211_registered
= 0;
4311 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
4315 /* make sure we flush any pending irq or
4316 * tasklet for the driver
4318 spin_lock_irqsave(&priv
->lock
, flags
);
4319 iwl4965_disable_interrupts(priv
);
4320 spin_unlock_irqrestore(&priv
->lock
, flags
);
4322 iwl_synchronize_irq(priv
);
4324 iwl_rfkill_unregister(priv
);
4325 iwl4965_dealloc_ucode_pci(priv
);
4328 iwl_rx_queue_free(priv
, &priv
->rxq
);
4329 iwl_hw_txq_ctx_free(priv
);
4331 iwl_clear_stations_table(priv
);
4332 iwl_eeprom_free(priv
);
4335 /*netif_stop_queue(dev); */
4336 flush_workqueue(priv
->workqueue
);
4338 /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
4339 * priv->workqueue... so we can't take down the workqueue
4341 destroy_workqueue(priv
->workqueue
);
4342 priv
->workqueue
= NULL
;
4344 pci_iounmap(pdev
, priv
->hw_base
);
4345 pci_release_regions(pdev
);
4346 pci_disable_device(pdev
);
4347 pci_set_drvdata(pdev
, NULL
);
4349 iwl_uninit_drv(priv
);
4351 if (priv
->ibss_beacon
)
4352 dev_kfree_skb(priv
->ibss_beacon
);
4354 ieee80211_free_hw(priv
->hw
);
4359 static int iwl4965_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
4361 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
4363 if (priv
->is_open
) {
4364 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
4365 iwl4965_mac_stop(priv
->hw
);
4369 pci_set_power_state(pdev
, PCI_D3hot
);
4374 static int iwl4965_pci_resume(struct pci_dev
*pdev
)
4376 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
4378 pci_set_power_state(pdev
, PCI_D0
);
4381 iwl4965_mac_start(priv
->hw
);
4383 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
4387 #endif /* CONFIG_PM */
4389 /*****************************************************************************
4391 * driver and module entry point
4393 *****************************************************************************/
4395 /* Hardware specific file defines the PCI IDs table for that hardware module */
4396 static struct pci_device_id iwl_hw_card_ids
[] = {
4397 {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID
, iwl4965_agn_cfg
)},
4398 {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID
, iwl4965_agn_cfg
)},
4399 #ifdef CONFIG_IWL5000
4400 {IWL_PCI_DEVICE(0x4232, 0x1205, iwl5100_bg_cfg
)},
4401 {IWL_PCI_DEVICE(0x4232, 0x1305, iwl5100_bg_cfg
)},
4402 {IWL_PCI_DEVICE(0x4232, 0x1206, iwl5100_abg_cfg
)},
4403 {IWL_PCI_DEVICE(0x4232, 0x1306, iwl5100_abg_cfg
)},
4404 {IWL_PCI_DEVICE(0x4232, 0x1326, iwl5100_abg_cfg
)},
4405 {IWL_PCI_DEVICE(0x4237, 0x1216, iwl5100_abg_cfg
)},
4406 {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID
, iwl5100_agn_cfg
)},
4407 {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID
, iwl5300_agn_cfg
)},
4408 {IWL_PCI_DEVICE(0x4236, PCI_ANY_ID
, iwl5300_agn_cfg
)},
4409 {IWL_PCI_DEVICE(0x4237, PCI_ANY_ID
, iwl5100_agn_cfg
)},
4410 {IWL_PCI_DEVICE(0x423A, PCI_ANY_ID
, iwl5350_agn_cfg
)},
4411 #endif /* CONFIG_IWL5000 */
4414 MODULE_DEVICE_TABLE(pci
, iwl_hw_card_ids
);
4416 static struct pci_driver iwl_driver
= {
4418 .id_table
= iwl_hw_card_ids
,
4419 .probe
= iwl4965_pci_probe
,
4420 .remove
= __devexit_p(iwl4965_pci_remove
),
4422 .suspend
= iwl4965_pci_suspend
,
4423 .resume
= iwl4965_pci_resume
,
4427 static int __init
iwl4965_init(void)
4431 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
4432 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
4434 ret
= iwl4965_rate_control_register();
4436 IWL_ERROR("Unable to register rate control algorithm: %d\n", ret
);
4440 ret
= pci_register_driver(&iwl_driver
);
4442 IWL_ERROR("Unable to initialize PCI module\n");
4443 goto error_register
;
4449 iwl4965_rate_control_unregister();
4453 static void __exit
iwl4965_exit(void)
4455 pci_unregister_driver(&iwl_driver
);
4456 iwl4965_rate_control_unregister();
4459 module_exit(iwl4965_exit
);
4460 module_init(iwl4965_init
);