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"
56 static int iwl_txq_update_write_ptr(struct iwl_priv
*priv
,
57 struct iwl_tx_queue
*txq
);
59 /******************************************************************************
63 ******************************************************************************/
66 * module name, copyright, version, etc.
67 * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
70 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link 4965AGN driver for Linux"
72 #ifdef CONFIG_IWLWIFI_DEBUG
78 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
84 #define DRV_VERSION IWLWIFI_VERSION VD VS
87 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
88 MODULE_VERSION(DRV_VERSION
);
89 MODULE_AUTHOR(DRV_COPYRIGHT
);
90 MODULE_LICENSE("GPL");
92 __le16
*ieee80211_get_qos_ctrl(struct ieee80211_hdr
*hdr
)
94 u16 fc
= le16_to_cpu(hdr
->frame_control
);
95 int hdr_len
= ieee80211_get_hdrlen(fc
);
97 if ((fc
& 0x00cc) == (IEEE80211_STYPE_QOS_DATA
| IEEE80211_FTYPE_DATA
))
98 return (__le16
*) ((u8
*) hdr
+ hdr_len
- QOS_CONTROL_LEN
);
102 static const struct ieee80211_supported_band
*iwl_get_hw_mode(
103 struct iwl_priv
*priv
, enum ieee80211_band band
)
105 return priv
->hw
->wiphy
->bands
[band
];
108 static int iwl4965_is_empty_essid(const char *essid
, int essid_len
)
110 /* Single white space is for Linksys APs */
111 if (essid_len
== 1 && essid
[0] == ' ')
114 /* Otherwise, if the entire essid is 0, we assume it is hidden */
117 if (essid
[essid_len
] != '\0')
124 static const char *iwl4965_escape_essid(const char *essid
, u8 essid_len
)
126 static char escaped
[IW_ESSID_MAX_SIZE
* 2 + 1];
127 const char *s
= essid
;
130 if (iwl4965_is_empty_essid(essid
, essid_len
)) {
131 memcpy(escaped
, "<hidden>", sizeof("<hidden>"));
135 essid_len
= min(essid_len
, (u8
) IW_ESSID_MAX_SIZE
);
136 while (essid_len
--) {
149 /*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
152 * Theory of operation
154 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
155 * of buffer descriptors, each of which points to one or more data buffers for
156 * the device to read from or fill. Driver and device exchange status of each
157 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
158 * entries in each circular buffer, to protect against confusing empty and full
161 * The device reads or writes the data in the queues via the device's several
162 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
164 * For Tx queue, there are low mark and high mark limits. If, after queuing
165 * the packet for Tx, free space become < low mark, Tx queue stopped. When
166 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
169 * The 4965 operates with up to 17 queues: One receive queue, one transmit
170 * queue (#4) for sending commands to the device firmware, and 15 other
171 * Tx queues that may be mapped to prioritized Tx DMA/FIFO channels.
173 * See more detailed info in iwl-4965-hw.h.
174 ***************************************************/
176 int iwl_queue_space(const struct iwl_queue
*q
)
178 int s
= q
->read_ptr
- q
->write_ptr
;
180 if (q
->read_ptr
> q
->write_ptr
)
185 /* keep some reserve to not confuse empty and full situations */
193 static inline int iwl_queue_used(const struct iwl_queue
*q
, int i
)
195 return q
->write_ptr
> q
->read_ptr
?
196 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
197 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
200 static inline u8
get_cmd_index(struct iwl_queue
*q
, u32 index
, int is_huge
)
202 /* This is for scan command, the big buffer at end of command array */
204 return q
->n_window
; /* must be power of 2 */
206 /* Otherwise, use normal size buffers */
207 return index
& (q
->n_window
- 1);
211 /*************** STATION TABLE MANAGEMENT ****
212 * mac80211 should be examined to determine if sta_info is duplicating
213 * the functionality provided here
216 /**************************************************************/
218 #if 0 /* temporary disable till we add real remove station */
220 * iwl4965_remove_station - Remove driver's knowledge of station.
222 * NOTE: This does not remove station from device's station table.
224 static u8
iwl4965_remove_station(struct iwl_priv
*priv
, const u8
*addr
, int is_ap
)
226 int index
= IWL_INVALID_STATION
;
230 spin_lock_irqsave(&priv
->sta_lock
, flags
);
234 else if (is_broadcast_ether_addr(addr
))
235 index
= priv
->hw_params
.bcast_sta_id
;
237 for (i
= IWL_STA_ID
; i
< priv
->hw_params
.max_stations
; i
++)
238 if (priv
->stations
[i
].used
&&
239 !compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
245 if (unlikely(index
== IWL_INVALID_STATION
))
248 if (priv
->stations
[index
].used
) {
249 priv
->stations
[index
].used
= 0;
250 priv
->num_stations
--;
253 BUG_ON(priv
->num_stations
< 0);
256 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
263 /*************** HOST COMMAND QUEUE FUNCTIONS *****/
266 * iwl4965_enqueue_hcmd - enqueue a uCode command
267 * @priv: device private data point
268 * @cmd: a point to the ucode command structure
270 * The function returns < 0 values to indicate the operation is
271 * failed. On success, it turns the index (> 0) of command in the
274 int iwl4965_enqueue_hcmd(struct iwl_priv
*priv
, struct iwl_host_cmd
*cmd
)
276 struct iwl_tx_queue
*txq
= &priv
->txq
[IWL_CMD_QUEUE_NUM
];
277 struct iwl_queue
*q
= &txq
->q
;
278 struct iwl_tfd_frame
*tfd
;
280 struct iwl_cmd
*out_cmd
;
283 dma_addr_t phys_addr
;
287 cmd
->len
= priv
->cfg
->ops
->utils
->get_hcmd_size(cmd
->id
, cmd
->len
);
288 fix_size
= (u16
)(cmd
->len
+ sizeof(out_cmd
->hdr
));
290 /* If any of the command structures end up being larger than
291 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
292 * we will need to increase the size of the TFD entries */
293 BUG_ON((fix_size
> TFD_MAX_PAYLOAD_SIZE
) &&
294 !(cmd
->meta
.flags
& CMD_SIZE_HUGE
));
296 if (iwl_is_rfkill(priv
)) {
297 IWL_DEBUG_INFO("Not sending command - RF KILL");
301 if (iwl_queue_space(q
) < ((cmd
->meta
.flags
& CMD_ASYNC
) ? 2 : 1)) {
302 IWL_ERROR("No space for Tx\n");
306 spin_lock_irqsave(&priv
->hcmd_lock
, flags
);
308 tfd
= &txq
->bd
[q
->write_ptr
];
309 memset(tfd
, 0, sizeof(*tfd
));
311 control_flags
= (u32
*) tfd
;
313 idx
= get_cmd_index(q
, q
->write_ptr
, cmd
->meta
.flags
& CMD_SIZE_HUGE
);
314 out_cmd
= &txq
->cmd
[idx
];
316 out_cmd
->hdr
.cmd
= cmd
->id
;
317 memcpy(&out_cmd
->meta
, &cmd
->meta
, sizeof(cmd
->meta
));
318 memcpy(&out_cmd
->cmd
.payload
, cmd
->data
, cmd
->len
);
320 /* At this point, the out_cmd now has all of the incoming cmd
323 out_cmd
->hdr
.flags
= 0;
324 out_cmd
->hdr
.sequence
= cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM
) |
325 INDEX_TO_SEQ(q
->write_ptr
));
326 if (out_cmd
->meta
.flags
& CMD_SIZE_HUGE
)
327 out_cmd
->hdr
.sequence
|= cpu_to_le16(SEQ_HUGE_FRAME
);
329 phys_addr
= txq
->dma_addr_cmd
+ sizeof(txq
->cmd
[0]) * idx
+
330 offsetof(struct iwl_cmd
, hdr
);
331 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, fix_size
);
333 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
334 "%d bytes at %d[%d]:%d\n",
335 get_cmd_string(out_cmd
->hdr
.cmd
),
336 out_cmd
->hdr
.cmd
, le16_to_cpu(out_cmd
->hdr
.sequence
),
337 fix_size
, q
->write_ptr
, idx
, IWL_CMD_QUEUE_NUM
);
339 txq
->need_update
= 1;
341 /* Set up entry in queue's byte count circular buffer */
342 priv
->cfg
->ops
->lib
->txq_update_byte_cnt_tbl(priv
, txq
, 0);
344 /* Increment and update queue's write index */
345 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
346 ret
= iwl_txq_update_write_ptr(priv
, txq
);
348 spin_unlock_irqrestore(&priv
->hcmd_lock
, flags
);
349 return ret
? ret
: idx
;
352 static void iwl4965_set_rxon_hwcrypto(struct iwl_priv
*priv
, int hw_decrypt
)
354 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
357 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
359 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
364 * iwl4965_check_rxon_cmd - validate RXON structure is valid
366 * NOTE: This is really only useful during development and can eventually
367 * be #ifdef'd out once the driver is stable and folks aren't actively
370 static int iwl4965_check_rxon_cmd(struct iwl_rxon_cmd
*rxon
)
375 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
376 error
|= le32_to_cpu(rxon
->flags
&
377 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
378 RXON_FLG_RADAR_DETECT_MSK
));
380 IWL_WARNING("check 24G fields %d | %d\n",
383 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
384 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
386 IWL_WARNING("check 52 fields %d | %d\n",
388 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
390 IWL_WARNING("check 52 CCK %d | %d\n",
393 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
395 IWL_WARNING("check mac addr %d | %d\n", counter
++, error
);
397 /* make sure basic rates 6Mbps and 1Mbps are supported */
398 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
399 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
401 IWL_WARNING("check basic rate %d | %d\n", counter
++, error
);
403 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
405 IWL_WARNING("check assoc id %d | %d\n", counter
++, error
);
407 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
408 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
410 IWL_WARNING("check CCK and short slot %d | %d\n",
413 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
414 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
416 IWL_WARNING("check CCK & auto detect %d | %d\n",
419 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
420 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
422 IWL_WARNING("check TGG and auto detect %d | %d\n",
426 IWL_WARNING("Tuning to channel %d\n",
427 le16_to_cpu(rxon
->channel
));
430 IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
437 * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
438 * @priv: staging_rxon is compared to active_rxon
440 * If the RXON structure is changing enough to require a new tune,
441 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
442 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
444 static int iwl4965_full_rxon_required(struct iwl_priv
*priv
)
447 /* These items are only settable from the full RXON command */
448 if (!(priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ||
449 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
450 priv
->active_rxon
.bssid_addr
) ||
451 compare_ether_addr(priv
->staging_rxon
.node_addr
,
452 priv
->active_rxon
.node_addr
) ||
453 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
454 priv
->active_rxon
.wlap_bssid_addr
) ||
455 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
456 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
457 (priv
->staging_rxon
.air_propagation
!=
458 priv
->active_rxon
.air_propagation
) ||
459 (priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
!=
460 priv
->active_rxon
.ofdm_ht_single_stream_basic_rates
) ||
461 (priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
!=
462 priv
->active_rxon
.ofdm_ht_dual_stream_basic_rates
) ||
463 (priv
->staging_rxon
.rx_chain
!= priv
->active_rxon
.rx_chain
) ||
464 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
467 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
468 * be updated with the RXON_ASSOC command -- however only some
469 * flag transitions are allowed using RXON_ASSOC */
471 /* Check if we are not switching bands */
472 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
473 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
476 /* Check if we are switching association toggle */
477 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
478 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
485 * iwl4965_commit_rxon - commit staging_rxon to hardware
487 * The RXON command in staging_rxon is committed to the hardware and
488 * the active_rxon structure is updated with the new data. This
489 * function correctly transitions out of the RXON_ASSOC_MSK state if
490 * a HW tune is required based on the RXON structure changes.
492 static int iwl4965_commit_rxon(struct iwl_priv
*priv
)
494 /* cast away the const for active_rxon in this function */
495 struct iwl_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
496 DECLARE_MAC_BUF(mac
);
499 if (!iwl_is_alive(priv
))
502 /* always get timestamp with Rx frame */
503 priv
->staging_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
505 rc
= iwl4965_check_rxon_cmd(&priv
->staging_rxon
);
507 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
511 /* If we don't need to send a full RXON, we can use
512 * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
513 * and other flags for the current radio configuration. */
514 if (!iwl4965_full_rxon_required(priv
)) {
515 rc
= iwl_send_rxon_assoc(priv
);
517 IWL_ERROR("Error setting RXON_ASSOC "
518 "configuration (%d).\n", rc
);
522 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
527 /* station table will be cleared */
528 priv
->assoc_station_added
= 0;
530 /* If we are currently associated and the new config requires
531 * an RXON_ASSOC and the new config wants the associated mask enabled,
532 * we must clear the associated from the active configuration
533 * before we apply the new config */
534 if (iwl_is_associated(priv
) &&
535 (priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
)) {
536 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
537 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
539 rc
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
540 sizeof(struct iwl_rxon_cmd
),
543 /* If the mask clearing failed then we set
544 * active_rxon back to what it was previously */
546 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
547 IWL_ERROR("Error clearing ASSOC_MSK on current "
548 "configuration (%d).\n", rc
);
553 IWL_DEBUG_INFO("Sending RXON\n"
554 "* with%s RXON_FILTER_ASSOC_MSK\n"
557 ((priv
->staging_rxon
.filter_flags
&
558 RXON_FILTER_ASSOC_MSK
) ? "" : "out"),
559 le16_to_cpu(priv
->staging_rxon
.channel
),
560 print_mac(mac
, priv
->staging_rxon
.bssid_addr
));
562 iwl4965_set_rxon_hwcrypto(priv
, !priv
->hw_params
.sw_crypto
);
563 /* Apply the new configuration */
564 rc
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
565 sizeof(struct iwl_rxon_cmd
), &priv
->staging_rxon
);
567 IWL_ERROR("Error setting new configuration (%d).\n", rc
);
571 iwlcore_clear_stations_table(priv
);
573 if (!priv
->error_recovering
)
574 priv
->start_calib
= 0;
576 iwl_init_sensitivity(priv
);
578 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
580 /* If we issue a new RXON command which required a tune then we must
581 * send a new TXPOWER command or we won't be able to Tx any frames */
582 rc
= iwl4965_hw_reg_send_txpower(priv
);
584 IWL_ERROR("Error setting Tx power (%d).\n", rc
);
588 /* Add the broadcast address so we can send broadcast frames */
589 if (iwl_rxon_add_station(priv
, iwl_bcast_addr
, 0) ==
590 IWL_INVALID_STATION
) {
591 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
595 /* If we have set the ASSOC_MSK and we are in BSS mode then
596 * add the IWL_AP_ID to the station rate table */
597 if (iwl_is_associated(priv
) &&
598 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)) {
599 if (iwl_rxon_add_station(priv
, priv
->active_rxon
.bssid_addr
, 1)
600 == IWL_INVALID_STATION
) {
601 IWL_ERROR("Error adding AP address for transmit.\n");
604 priv
->assoc_station_added
= 1;
605 if (priv
->default_wep_key
&&
606 iwl_send_static_wepkey_cmd(priv
, 0))
607 IWL_ERROR("Could not send WEP static key.\n");
613 void iwl4965_update_chain_flags(struct iwl_priv
*priv
)
616 iwl_set_rxon_chain(priv
);
617 iwl4965_commit_rxon(priv
);
620 static int iwl4965_send_bt_config(struct iwl_priv
*priv
)
622 struct iwl4965_bt_cmd bt_cmd
= {
630 return iwl_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
631 sizeof(struct iwl4965_bt_cmd
), &bt_cmd
);
634 static int iwl4965_send_scan_abort(struct iwl_priv
*priv
)
637 struct iwl_rx_packet
*res
;
638 struct iwl_host_cmd cmd
= {
639 .id
= REPLY_SCAN_ABORT_CMD
,
640 .meta
.flags
= CMD_WANT_SKB
,
643 /* If there isn't a scan actively going on in the hardware
644 * then we are in between scan bands and not actually
645 * actively scanning, so don't send the abort command */
646 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
647 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
651 ret
= iwl_send_cmd_sync(priv
, &cmd
);
653 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
657 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
658 if (res
->u
.status
!= CAN_ABORT_STATUS
) {
659 /* The scan abort will return 1 for success or
660 * 2 for "failure". A failure condition can be
661 * due to simply not being in an active scan which
662 * can occur if we send the scan abort before we
663 * the microcode has notified us that a scan is
665 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res
->u
.status
);
666 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
667 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
670 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
678 * Use: Sets the device's internal card state to enable, disable, or halt
680 * When in the 'enable' state the card operates as normal.
681 * When in the 'disable' state, the card enters into a low power mode.
682 * When in the 'halt' state, the card is shut down and must be fully
683 * restarted to come back on.
685 static int iwl4965_send_card_state(struct iwl_priv
*priv
, u32 flags
, u8 meta_flag
)
687 struct iwl_host_cmd cmd
= {
688 .id
= REPLY_CARD_STATE_CMD
,
691 .meta
.flags
= meta_flag
,
694 return iwl_send_cmd(priv
, &cmd
);
697 static void iwl_clear_free_frames(struct iwl_priv
*priv
)
699 struct list_head
*element
;
701 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
704 while (!list_empty(&priv
->free_frames
)) {
705 element
= priv
->free_frames
.next
;
707 kfree(list_entry(element
, struct iwl_frame
, list
));
708 priv
->frames_count
--;
711 if (priv
->frames_count
) {
712 IWL_WARNING("%d frames still in use. Did we lose one?\n",
714 priv
->frames_count
= 0;
718 static struct iwl_frame
*iwl_get_free_frame(struct iwl_priv
*priv
)
720 struct iwl_frame
*frame
;
721 struct list_head
*element
;
722 if (list_empty(&priv
->free_frames
)) {
723 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
725 IWL_ERROR("Could not allocate frame!\n");
729 priv
->frames_count
++;
733 element
= priv
->free_frames
.next
;
735 return list_entry(element
, struct iwl_frame
, list
);
738 static void iwl_free_frame(struct iwl_priv
*priv
, struct iwl_frame
*frame
)
740 memset(frame
, 0, sizeof(*frame
));
741 list_add(&frame
->list
, &priv
->free_frames
);
744 unsigned int iwl4965_fill_beacon_frame(struct iwl_priv
*priv
,
745 struct ieee80211_hdr
*hdr
,
746 const u8
*dest
, int left
)
749 if (!iwl_is_associated(priv
) || !priv
->ibss_beacon
||
750 ((priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) &&
751 (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
)))
754 if (priv
->ibss_beacon
->len
> left
)
757 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
759 return priv
->ibss_beacon
->len
;
762 static u8
iwl4965_rate_get_lowest_plcp(struct iwl_priv
*priv
)
768 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
769 rate_mask
= priv
->active_rate_basic
& 0xF;
771 rate_mask
= priv
->active_rate_basic
& 0xFF0;
773 /* Find lowest valid rate */
774 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
775 i
= iwl_rates
[i
].next_ieee
) {
776 if (rate_mask
& (1 << i
))
777 return iwl_rates
[i
].plcp
;
780 /* No valid rate was found. Assign the lowest one */
781 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
782 return IWL_RATE_1M_PLCP
;
784 return IWL_RATE_6M_PLCP
;
787 static int iwl4965_send_beacon_cmd(struct iwl_priv
*priv
)
789 struct iwl_frame
*frame
;
790 unsigned int frame_size
;
794 frame
= iwl_get_free_frame(priv
);
797 IWL_ERROR("Could not obtain free frame buffer for beacon "
802 rate
= iwl4965_rate_get_lowest_plcp(priv
);
804 frame_size
= iwl4965_hw_get_beacon_cmd(priv
, frame
, rate
);
806 rc
= iwl_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
809 iwl_free_frame(priv
, frame
);
814 /******************************************************************************
816 * Misc. internal state and helper functions
818 ******************************************************************************/
821 * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field
823 * return : set the bit for each supported rate insert in ie
825 static u16
iwl4965_supported_rate_to_ie(u8
*ie
, u16 supported_rate
,
826 u16 basic_rate
, int *left
)
828 u16 ret_rates
= 0, bit
;
833 for (bit
= 1, i
= 0; i
< IWL_RATE_COUNT
; i
++, bit
<<= 1) {
834 if (bit
& supported_rate
) {
836 rates
[*cnt
] = iwl_rates
[i
].ieee
|
837 ((bit
& basic_rate
) ? 0x80 : 0x00);
841 (*cnt
>= IWL_SUPPORTED_RATES_IE_LEN
))
849 #ifdef CONFIG_IWL4965_HT
850 static void iwl4965_ht_conf(struct iwl_priv
*priv
,
851 struct ieee80211_bss_conf
*bss_conf
)
853 struct ieee80211_ht_info
*ht_conf
= bss_conf
->ht_conf
;
854 struct ieee80211_ht_bss_info
*ht_bss_conf
= bss_conf
->ht_bss_conf
;
855 struct iwl_ht_info
*iwl_conf
= &priv
->current_ht_config
;
857 IWL_DEBUG_MAC80211("enter: \n");
859 iwl_conf
->is_ht
= bss_conf
->assoc_ht
;
861 if (!iwl_conf
->is_ht
)
864 priv
->ps_mode
= (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
866 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_20
)
867 iwl_conf
->sgf
|= 0x1;
868 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_40
)
869 iwl_conf
->sgf
|= 0x2;
871 iwl_conf
->is_green_field
= !!(ht_conf
->cap
& IEEE80211_HT_CAP_GRN_FLD
);
872 iwl_conf
->max_amsdu_size
=
873 !!(ht_conf
->cap
& IEEE80211_HT_CAP_MAX_AMSDU
);
875 iwl_conf
->supported_chan_width
=
876 !!(ht_conf
->cap
& IEEE80211_HT_CAP_SUP_WIDTH
);
877 iwl_conf
->extension_chan_offset
=
878 ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_SEC_OFFSET
;
879 /* If no above or below channel supplied disable FAT channel */
880 if (iwl_conf
->extension_chan_offset
!= IWL_EXT_CHANNEL_OFFSET_ABOVE
&&
881 iwl_conf
->extension_chan_offset
!= IWL_EXT_CHANNEL_OFFSET_BELOW
)
882 iwl_conf
->supported_chan_width
= 0;
884 iwl_conf
->tx_mimo_ps_mode
=
885 (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
886 memcpy(iwl_conf
->supp_mcs_set
, ht_conf
->supp_mcs_set
, 16);
888 iwl_conf
->control_channel
= ht_bss_conf
->primary_channel
;
889 iwl_conf
->tx_chan_width
=
890 !!(ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_WIDTH
);
891 iwl_conf
->ht_protection
=
892 ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_HT_PROTECTION
;
893 iwl_conf
->non_GF_STA_present
=
894 !!(ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_NON_GF_STA_PRSNT
);
896 IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf
->control_channel
);
897 IWL_DEBUG_MAC80211("leave\n");
900 static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band
*sband
,
903 struct ieee80211_ht_cap
*ht_cap
;
905 if (!sband
|| !sband
->ht_info
.ht_supported
)
908 if (*left
< sizeof(struct ieee80211_ht_cap
))
911 *pos
++ = sizeof(struct ieee80211_ht_cap
);
912 ht_cap
= (struct ieee80211_ht_cap
*) pos
;
914 ht_cap
->cap_info
= cpu_to_le16(sband
->ht_info
.cap
);
915 memcpy(ht_cap
->supp_mcs_set
, sband
->ht_info
.supp_mcs_set
, 16);
916 ht_cap
->ampdu_params_info
=
917 (sband
->ht_info
.ampdu_factor
& IEEE80211_HT_CAP_AMPDU_FACTOR
) |
918 ((sband
->ht_info
.ampdu_density
<< 2) &
919 IEEE80211_HT_CAP_AMPDU_DENSITY
);
920 *left
-= sizeof(struct ieee80211_ht_cap
);
923 static inline void iwl4965_ht_conf(struct iwl_priv
*priv
,
924 struct ieee80211_bss_conf
*bss_conf
)
927 static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band
*sband
,
935 * iwl4965_fill_probe_req - fill in all required fields and IE for probe request
937 static u16
iwl4965_fill_probe_req(struct iwl_priv
*priv
,
938 enum ieee80211_band band
,
939 struct ieee80211_mgmt
*frame
,
940 int left
, int is_direct
)
944 u16 active_rates
, ret_rates
, cck_rates
, active_rate_basic
;
945 const struct ieee80211_supported_band
*sband
=
946 iwl_get_hw_mode(priv
, band
);
948 /* Make sure there is enough space for the probe request,
949 * two mandatory IEs and the data */
955 frame
->frame_control
= cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
);
956 memcpy(frame
->da
, iwl_bcast_addr
, ETH_ALEN
);
957 memcpy(frame
->sa
, priv
->mac_addr
, ETH_ALEN
);
958 memcpy(frame
->bssid
, iwl_bcast_addr
, ETH_ALEN
);
961 /* fill in our indirect SSID IE */
968 pos
= &(frame
->u
.probe_req
.variable
[0]);
969 *pos
++ = WLAN_EID_SSID
;
972 /* fill in our direct SSID IE... */
975 left
-= 2 + priv
->essid_len
;
978 /* ... fill it in... */
979 *pos
++ = WLAN_EID_SSID
;
980 *pos
++ = priv
->essid_len
;
981 memcpy(pos
, priv
->essid
, priv
->essid_len
);
982 pos
+= priv
->essid_len
;
983 len
+= 2 + priv
->essid_len
;
986 /* fill in supported rate */
992 /* ... fill it in... */
993 *pos
++ = WLAN_EID_SUPP_RATES
;
996 /* exclude 60M rate */
997 active_rates
= priv
->rates_mask
;
998 active_rates
&= ~IWL_RATE_60M_MASK
;
1000 active_rate_basic
= active_rates
& IWL_BASIC_RATES_MASK
;
1002 cck_rates
= IWL_CCK_RATES_MASK
& active_rates
;
1003 ret_rates
= iwl4965_supported_rate_to_ie(pos
, cck_rates
,
1004 active_rate_basic
, &left
);
1005 active_rates
&= ~ret_rates
;
1007 ret_rates
= iwl4965_supported_rate_to_ie(pos
, active_rates
,
1008 active_rate_basic
, &left
);
1009 active_rates
&= ~ret_rates
;
1013 if (active_rates
== 0)
1016 /* fill in supported extended rate */
1021 /* ... fill it in... */
1022 *pos
++ = WLAN_EID_EXT_SUPP_RATES
;
1024 iwl4965_supported_rate_to_ie(pos
, active_rates
,
1025 active_rate_basic
, &left
);
1035 *pos
++ = WLAN_EID_HT_CAPABILITY
;
1038 iwl_ht_cap_to_ie(sband
, pos
, &left
);
1048 static int iwl4965_send_qos_params_command(struct iwl_priv
*priv
,
1049 struct iwl4965_qosparam_cmd
*qos
)
1052 return iwl_send_cmd_pdu(priv
, REPLY_QOS_PARAM
,
1053 sizeof(struct iwl4965_qosparam_cmd
), qos
);
1056 static void iwl4965_activate_qos(struct iwl_priv
*priv
, u8 force
)
1058 unsigned long flags
;
1060 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
1063 if (!priv
->qos_data
.qos_enable
)
1066 spin_lock_irqsave(&priv
->lock
, flags
);
1067 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
1069 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
1070 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
1071 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1072 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
1073 if (priv
->qos_data
.qos_active
)
1074 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1075 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
1077 #ifdef CONFIG_IWL4965_HT
1078 if (priv
->current_ht_config
.is_ht
)
1079 priv
->qos_data
.def_qos_parm
.qos_flags
|= QOS_PARAM_FLG_TGN_MSK
;
1080 #endif /* CONFIG_IWL4965_HT */
1082 spin_unlock_irqrestore(&priv
->lock
, flags
);
1084 if (force
|| iwl_is_associated(priv
)) {
1085 IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
1086 priv
->qos_data
.qos_active
,
1087 priv
->qos_data
.def_qos_parm
.qos_flags
);
1089 iwl4965_send_qos_params_command(priv
,
1090 &(priv
->qos_data
.def_qos_parm
));
1094 int iwl4965_is_network_packet(struct iwl_priv
*priv
, struct ieee80211_hdr
*header
)
1096 /* Filter incoming packets to determine if they are targeted toward
1097 * this network, discarding packets coming from ourselves */
1098 switch (priv
->iw_mode
) {
1099 case IEEE80211_IF_TYPE_IBSS
: /* Header: Dest. | Source | BSSID */
1100 /* packets from our adapter are dropped (echo) */
1101 if (!compare_ether_addr(header
->addr2
, priv
->mac_addr
))
1103 /* {broad,multi}cast packets to our IBSS go through */
1104 if (is_multicast_ether_addr(header
->addr1
))
1105 return !compare_ether_addr(header
->addr3
, priv
->bssid
);
1106 /* packets to our adapter go through */
1107 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
1108 case IEEE80211_IF_TYPE_STA
: /* Header: Dest. | AP{BSSID} | Source */
1109 /* packets from our adapter are dropped (echo) */
1110 if (!compare_ether_addr(header
->addr3
, priv
->mac_addr
))
1112 /* {broad,multi}cast packets to our BSS go through */
1113 if (is_multicast_ether_addr(header
->addr1
))
1114 return !compare_ether_addr(header
->addr2
, priv
->bssid
);
1115 /* packets to our adapter go through */
1116 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
1124 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
1126 static const char *iwl4965_get_tx_fail_reason(u32 status
)
1128 switch (status
& TX_STATUS_MSK
) {
1129 case TX_STATUS_SUCCESS
:
1131 TX_STATUS_ENTRY(SHORT_LIMIT
);
1132 TX_STATUS_ENTRY(LONG_LIMIT
);
1133 TX_STATUS_ENTRY(FIFO_UNDERRUN
);
1134 TX_STATUS_ENTRY(MGMNT_ABORT
);
1135 TX_STATUS_ENTRY(NEXT_FRAG
);
1136 TX_STATUS_ENTRY(LIFE_EXPIRE
);
1137 TX_STATUS_ENTRY(DEST_PS
);
1138 TX_STATUS_ENTRY(ABORTED
);
1139 TX_STATUS_ENTRY(BT_RETRY
);
1140 TX_STATUS_ENTRY(STA_INVALID
);
1141 TX_STATUS_ENTRY(FRAG_DROPPED
);
1142 TX_STATUS_ENTRY(TID_DISABLE
);
1143 TX_STATUS_ENTRY(FRAME_FLUSHED
);
1144 TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL
);
1145 TX_STATUS_ENTRY(TX_LOCKED
);
1146 TX_STATUS_ENTRY(NO_BEACON_ON_RADAR
);
1153 * iwl4965_scan_cancel - Cancel any currently executing HW scan
1155 * NOTE: priv->mutex is not required before calling this function
1157 static int iwl4965_scan_cancel(struct iwl_priv
*priv
)
1159 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1160 clear_bit(STATUS_SCANNING
, &priv
->status
);
1164 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
1165 if (!test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
1166 IWL_DEBUG_SCAN("Queuing scan abort.\n");
1167 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1168 queue_work(priv
->workqueue
, &priv
->abort_scan
);
1171 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
1173 return test_bit(STATUS_SCANNING
, &priv
->status
);
1180 * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan
1181 * @ms: amount of time to wait (in milliseconds) for scan to abort
1183 * NOTE: priv->mutex must be held before calling this function
1185 static int iwl4965_scan_cancel_timeout(struct iwl_priv
*priv
, unsigned long ms
)
1187 unsigned long now
= jiffies
;
1190 ret
= iwl4965_scan_cancel(priv
);
1192 mutex_unlock(&priv
->mutex
);
1193 while (!time_after(jiffies
, now
+ msecs_to_jiffies(ms
)) &&
1194 test_bit(STATUS_SCANNING
, &priv
->status
))
1196 mutex_lock(&priv
->mutex
);
1198 return test_bit(STATUS_SCANNING
, &priv
->status
);
1204 static void iwl4965_sequence_reset(struct iwl_priv
*priv
)
1206 /* Reset ieee stats */
1208 /* We don't reset the net_device_stats (ieee->stats) on
1211 priv
->last_seq_num
= -1;
1212 priv
->last_frag_num
= -1;
1213 priv
->last_packet_time
= 0;
1215 iwl4965_scan_cancel(priv
);
1218 #define MAX_UCODE_BEACON_INTERVAL 4096
1219 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
1221 static __le16
iwl4965_adjust_beacon_interval(u16 beacon_val
)
1224 u16 beacon_factor
= 0;
1227 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
1228 / MAX_UCODE_BEACON_INTERVAL
;
1229 new_val
= beacon_val
/ beacon_factor
;
1231 return cpu_to_le16(new_val
);
1234 static void iwl4965_setup_rxon_timing(struct iwl_priv
*priv
)
1236 u64 interval_tm_unit
;
1238 unsigned long flags
;
1239 struct ieee80211_conf
*conf
= NULL
;
1242 conf
= ieee80211_get_hw_conf(priv
->hw
);
1244 spin_lock_irqsave(&priv
->lock
, flags
);
1245 priv
->rxon_timing
.timestamp
.dw
[1] = cpu_to_le32(priv
->timestamp
>> 32);
1246 priv
->rxon_timing
.timestamp
.dw
[0] =
1247 cpu_to_le32(priv
->timestamp
& 0xFFFFFFFF);
1249 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
1251 tsf
= priv
->timestamp
;
1253 beacon_int
= priv
->beacon_int
;
1254 spin_unlock_irqrestore(&priv
->lock
, flags
);
1256 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) {
1257 if (beacon_int
== 0) {
1258 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
1259 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
1261 priv
->rxon_timing
.beacon_interval
=
1262 cpu_to_le16(beacon_int
);
1263 priv
->rxon_timing
.beacon_interval
=
1264 iwl4965_adjust_beacon_interval(
1265 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
1268 priv
->rxon_timing
.atim_window
= 0;
1270 priv
->rxon_timing
.beacon_interval
=
1271 iwl4965_adjust_beacon_interval(conf
->beacon_int
);
1272 /* TODO: we need to get atim_window from upper stack
1273 * for now we set to 0 */
1274 priv
->rxon_timing
.atim_window
= 0;
1278 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
1279 result
= do_div(tsf
, interval_tm_unit
);
1280 priv
->rxon_timing
.beacon_init_val
=
1281 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
1284 ("beacon interval %d beacon timer %d beacon tim %d\n",
1285 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
1286 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
1287 le16_to_cpu(priv
->rxon_timing
.atim_window
));
1290 static int iwl4965_scan_initiate(struct iwl_priv
*priv
)
1292 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
1293 IWL_ERROR("APs don't scan.\n");
1297 if (!iwl_is_ready_rf(priv
)) {
1298 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
1302 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
1303 IWL_DEBUG_SCAN("Scan already in progress.\n");
1307 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
1308 IWL_DEBUG_SCAN("Scan request while abort pending. "
1313 IWL_DEBUG_INFO("Starting scan...\n");
1314 priv
->scan_bands
= 2;
1315 set_bit(STATUS_SCANNING
, &priv
->status
);
1316 priv
->scan_start
= jiffies
;
1317 priv
->scan_pass_start
= priv
->scan_start
;
1319 queue_work(priv
->workqueue
, &priv
->request_scan
);
1325 static void iwl4965_set_flags_for_phymode(struct iwl_priv
*priv
,
1326 enum ieee80211_band band
)
1328 if (band
== IEEE80211_BAND_5GHZ
) {
1329 priv
->staging_rxon
.flags
&=
1330 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
1331 | RXON_FLG_CCK_MSK
);
1332 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1334 /* Copied from iwl4965_post_associate() */
1335 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
1336 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1338 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1340 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
1341 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1343 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
1344 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
1345 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
1350 * initialize rxon structure with default values from eeprom
1352 static void iwl4965_connection_init_rx_config(struct iwl_priv
*priv
)
1354 const struct iwl_channel_info
*ch_info
;
1356 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
1358 switch (priv
->iw_mode
) {
1359 case IEEE80211_IF_TYPE_AP
:
1360 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
1363 case IEEE80211_IF_TYPE_STA
:
1364 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
1365 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
1368 case IEEE80211_IF_TYPE_IBSS
:
1369 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
1370 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
1371 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
1372 RXON_FILTER_ACCEPT_GRP_MSK
;
1375 case IEEE80211_IF_TYPE_MNTR
:
1376 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
1377 priv
->staging_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
1378 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
1381 IWL_ERROR("Unsupported interface type %d\n", priv
->iw_mode
);
1386 /* TODO: Figure out when short_preamble would be set and cache from
1388 if (!hw_to_local(priv
->hw
)->short_preamble
)
1389 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
1391 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
1394 ch_info
= iwl_get_channel_info(priv
, priv
->band
,
1395 le16_to_cpu(priv
->staging_rxon
.channel
));
1398 ch_info
= &priv
->channel_info
[0];
1401 * in some case A channels are all non IBSS
1402 * in this case force B/G channel
1404 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) &&
1405 !(is_channel_ibss(ch_info
)))
1406 ch_info
= &priv
->channel_info
[0];
1408 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
1409 priv
->band
= ch_info
->band
;
1411 iwl4965_set_flags_for_phymode(priv
, priv
->band
);
1413 priv
->staging_rxon
.ofdm_basic_rates
=
1414 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
1415 priv
->staging_rxon
.cck_basic_rates
=
1416 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
1418 priv
->staging_rxon
.flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK
|
1419 RXON_FLG_CHANNEL_MODE_PURE_40_MSK
);
1420 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
1421 memcpy(priv
->staging_rxon
.wlap_bssid_addr
, priv
->mac_addr
, ETH_ALEN
);
1422 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
= 0xff;
1423 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
= 0xff;
1424 iwl_set_rxon_chain(priv
);
1427 static int iwl4965_set_mode(struct iwl_priv
*priv
, int mode
)
1429 if (mode
== IEEE80211_IF_TYPE_IBSS
) {
1430 const struct iwl_channel_info
*ch_info
;
1432 ch_info
= iwl_get_channel_info(priv
,
1434 le16_to_cpu(priv
->staging_rxon
.channel
));
1436 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
1437 IWL_ERROR("channel %d not IBSS channel\n",
1438 le16_to_cpu(priv
->staging_rxon
.channel
));
1443 priv
->iw_mode
= mode
;
1445 iwl4965_connection_init_rx_config(priv
);
1446 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
1448 iwlcore_clear_stations_table(priv
);
1450 /* dont commit rxon if rf-kill is on*/
1451 if (!iwl_is_ready_rf(priv
))
1454 cancel_delayed_work(&priv
->scan_check
);
1455 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
1456 IWL_WARNING("Aborted scan still in progress after 100ms\n");
1457 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
1461 iwl4965_commit_rxon(priv
);
1466 static void iwl4965_build_tx_cmd_hwcrypto(struct iwl_priv
*priv
,
1467 struct ieee80211_tx_control
*ctl
,
1468 struct iwl_cmd
*cmd
,
1469 struct sk_buff
*skb_frag
,
1472 struct iwl_hw_key
*keyinfo
= &priv
->stations
[sta_id
].keyinfo
;
1473 struct iwl_wep_key
*wepkey
;
1476 BUG_ON(ctl
->hw_key
->hw_key_idx
> 3);
1478 switch (keyinfo
->alg
) {
1480 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_CCM
;
1481 memcpy(cmd
->cmd
.tx
.key
, keyinfo
->key
, keyinfo
->keylen
);
1482 if (ctl
->flags
& IEEE80211_TXCTL_AMPDU
)
1483 cmd
->cmd
.tx
.tx_flags
|= TX_CMD_FLG_AGG_CCMP_MSK
;
1484 IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
1488 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_TKIP
;
1489 ieee80211_get_tkip_key(keyinfo
->conf
, skb_frag
,
1490 IEEE80211_TKIP_P2_KEY
, cmd
->cmd
.tx
.key
);
1491 IWL_DEBUG_TX("tx_cmd with tkip hwcrypto\n");
1495 wepkey
= &priv
->wep_keys
[ctl
->hw_key
->hw_key_idx
];
1496 cmd
->cmd
.tx
.sec_ctl
= 0;
1497 if (priv
->default_wep_key
) {
1498 /* the WEP key was sent as static */
1499 keyidx
= ctl
->hw_key
->hw_key_idx
;
1500 memcpy(&cmd
->cmd
.tx
.key
[3], wepkey
->key
,
1502 if (wepkey
->key_size
== WEP_KEY_LEN_128
)
1503 cmd
->cmd
.tx
.sec_ctl
|= TX_CMD_SEC_KEY128
;
1505 /* the WEP key was sent as dynamic */
1506 keyidx
= keyinfo
->keyidx
;
1507 memcpy(&cmd
->cmd
.tx
.key
[3], keyinfo
->key
,
1509 if (keyinfo
->keylen
== WEP_KEY_LEN_128
)
1510 cmd
->cmd
.tx
.sec_ctl
|= TX_CMD_SEC_KEY128
;
1513 cmd
->cmd
.tx
.sec_ctl
|= (TX_CMD_SEC_WEP
|
1514 (keyidx
& TX_CMD_SEC_MSK
) << TX_CMD_SEC_SHIFT
);
1516 IWL_DEBUG_TX("Configuring packet for WEP encryption "
1517 "with key %d\n", keyidx
);
1521 printk(KERN_ERR
"Unknown encode alg %d\n", keyinfo
->alg
);
1527 * handle build REPLY_TX command notification.
1529 static void iwl4965_build_tx_cmd_basic(struct iwl_priv
*priv
,
1530 struct iwl_cmd
*cmd
,
1531 struct ieee80211_tx_control
*ctrl
,
1532 struct ieee80211_hdr
*hdr
,
1533 int is_unicast
, u8 std_id
)
1536 u16 fc
= le16_to_cpu(hdr
->frame_control
);
1537 __le32 tx_flags
= cmd
->cmd
.tx
.tx_flags
;
1539 cmd
->cmd
.tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
1540 if (!(ctrl
->flags
& IEEE80211_TXCTL_NO_ACK
)) {
1541 tx_flags
|= TX_CMD_FLG_ACK_MSK
;
1542 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
)
1543 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
1544 if (ieee80211_is_probe_response(fc
) &&
1545 !(le16_to_cpu(hdr
->seq_ctrl
) & 0xf))
1546 tx_flags
|= TX_CMD_FLG_TSF_MSK
;
1548 tx_flags
&= (~TX_CMD_FLG_ACK_MSK
);
1549 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
1552 if (ieee80211_is_back_request(fc
))
1553 tx_flags
|= TX_CMD_FLG_ACK_MSK
| TX_CMD_FLG_IMM_BA_RSP_MASK
;
1556 cmd
->cmd
.tx
.sta_id
= std_id
;
1557 if (ieee80211_get_morefrag(hdr
))
1558 tx_flags
|= TX_CMD_FLG_MORE_FRAG_MSK
;
1560 qc
= ieee80211_get_qos_ctrl(hdr
);
1562 cmd
->cmd
.tx
.tid_tspec
= (u8
) (le16_to_cpu(*qc
) & 0xf);
1563 tx_flags
&= ~TX_CMD_FLG_SEQ_CTL_MSK
;
1565 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
1567 if (ctrl
->flags
& IEEE80211_TXCTL_USE_RTS_CTS
) {
1568 tx_flags
|= TX_CMD_FLG_RTS_MSK
;
1569 tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
1570 } else if (ctrl
->flags
& IEEE80211_TXCTL_USE_CTS_PROTECT
) {
1571 tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
1572 tx_flags
|= TX_CMD_FLG_CTS_MSK
;
1575 if ((tx_flags
& TX_CMD_FLG_RTS_MSK
) || (tx_flags
& TX_CMD_FLG_CTS_MSK
))
1576 tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
1578 tx_flags
&= ~(TX_CMD_FLG_ANT_SEL_MSK
);
1579 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
) {
1580 if ((fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_ASSOC_REQ
||
1581 (fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_REASSOC_REQ
)
1582 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(3);
1584 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(2);
1586 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= 0;
1589 cmd
->cmd
.tx
.driver_txop
= 0;
1590 cmd
->cmd
.tx
.tx_flags
= tx_flags
;
1591 cmd
->cmd
.tx
.next_frame_len
= 0;
1593 static void iwl_update_tx_stats(struct iwl_priv
*priv
, u16 fc
, u16 len
)
1595 /* 0 - mgmt, 1 - cnt, 2 - data */
1596 int idx
= (fc
& IEEE80211_FCTL_FTYPE
) >> 2;
1597 priv
->tx_stats
[idx
].cnt
++;
1598 priv
->tx_stats
[idx
].bytes
+= len
;
1601 * start REPLY_TX command process
1603 static int iwl4965_tx_skb(struct iwl_priv
*priv
,
1604 struct sk_buff
*skb
, struct ieee80211_tx_control
*ctl
)
1606 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
1607 struct iwl_tfd_frame
*tfd
;
1609 int txq_id
= ctl
->queue
;
1610 struct iwl_tx_queue
*txq
= NULL
;
1611 struct iwl_queue
*q
= NULL
;
1612 dma_addr_t phys_addr
;
1613 dma_addr_t txcmd_phys
;
1614 dma_addr_t scratch_phys
;
1615 struct iwl_cmd
*out_cmd
= NULL
;
1616 u16 len
, idx
, len_org
;
1617 u8 id
, hdr_len
, unicast
;
1622 u8 wait_write_ptr
= 0;
1623 unsigned long flags
;
1626 spin_lock_irqsave(&priv
->lock
, flags
);
1627 if (iwl_is_rfkill(priv
)) {
1628 IWL_DEBUG_DROP("Dropping - RF KILL\n");
1633 IWL_DEBUG_DROP("Dropping - !priv->vif\n");
1637 if ((ctl
->tx_rate
->hw_value
& 0xFF) == IWL_INVALID_RATE
) {
1638 IWL_ERROR("ERROR: No TX rate available.\n");
1642 unicast
= !is_multicast_ether_addr(hdr
->addr1
);
1645 fc
= le16_to_cpu(hdr
->frame_control
);
1647 #ifdef CONFIG_IWLWIFI_DEBUG
1648 if (ieee80211_is_auth(fc
))
1649 IWL_DEBUG_TX("Sending AUTH frame\n");
1650 else if (ieee80211_is_assoc_request(fc
))
1651 IWL_DEBUG_TX("Sending ASSOC frame\n");
1652 else if (ieee80211_is_reassoc_request(fc
))
1653 IWL_DEBUG_TX("Sending REASSOC frame\n");
1656 /* drop all data frame if we are not associated */
1657 if (((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_DATA
) &&
1658 (!iwl_is_associated(priv
) ||
1659 ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && !priv
->assoc_id
) ||
1660 !priv
->assoc_station_added
)) {
1661 IWL_DEBUG_DROP("Dropping - !iwl_is_associated\n");
1665 spin_unlock_irqrestore(&priv
->lock
, flags
);
1667 hdr_len
= ieee80211_get_hdrlen(fc
);
1669 /* Find (or create) index into station table for destination station */
1670 sta_id
= iwl_get_sta_id(priv
, hdr
);
1671 if (sta_id
== IWL_INVALID_STATION
) {
1672 DECLARE_MAC_BUF(mac
);
1674 IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
1675 print_mac(mac
, hdr
->addr1
));
1679 IWL_DEBUG_TX("station Id %d\n", sta_id
);
1681 qc
= ieee80211_get_qos_ctrl(hdr
);
1683 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
1684 seq_number
= priv
->stations
[sta_id
].tid
[tid
].seq_number
&
1686 hdr
->seq_ctrl
= cpu_to_le16(seq_number
) |
1688 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG
));
1690 #ifdef CONFIG_IWL4965_HT
1691 /* aggregation is on for this <sta,tid> */
1692 if (ctl
->flags
& IEEE80211_TXCTL_AMPDU
)
1693 txq_id
= priv
->stations
[sta_id
].tid
[tid
].agg
.txq_id
;
1694 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
++;
1695 #endif /* CONFIG_IWL4965_HT */
1698 /* Descriptor for chosen Tx queue */
1699 txq
= &priv
->txq
[txq_id
];
1702 spin_lock_irqsave(&priv
->lock
, flags
);
1704 /* Set up first empty TFD within this queue's circular TFD buffer */
1705 tfd
= &txq
->bd
[q
->write_ptr
];
1706 memset(tfd
, 0, sizeof(*tfd
));
1707 control_flags
= (u32
*) tfd
;
1708 idx
= get_cmd_index(q
, q
->write_ptr
, 0);
1710 /* Set up driver data for this TFD */
1711 memset(&(txq
->txb
[q
->write_ptr
]), 0, sizeof(struct iwl_tx_info
));
1712 txq
->txb
[q
->write_ptr
].skb
[0] = skb
;
1713 memcpy(&(txq
->txb
[q
->write_ptr
].status
.control
),
1714 ctl
, sizeof(struct ieee80211_tx_control
));
1716 /* Set up first empty entry in queue's array of Tx/cmd buffers */
1717 out_cmd
= &txq
->cmd
[idx
];
1718 memset(&out_cmd
->hdr
, 0, sizeof(out_cmd
->hdr
));
1719 memset(&out_cmd
->cmd
.tx
, 0, sizeof(out_cmd
->cmd
.tx
));
1722 * Set up the Tx-command (not MAC!) header.
1723 * Store the chosen Tx queue and TFD index within the sequence field;
1724 * after Tx, uCode's Tx response will return this value so driver can
1725 * locate the frame within the tx queue and do post-tx processing.
1727 out_cmd
->hdr
.cmd
= REPLY_TX
;
1728 out_cmd
->hdr
.sequence
= cpu_to_le16((u16
)(QUEUE_TO_SEQ(txq_id
) |
1729 INDEX_TO_SEQ(q
->write_ptr
)));
1731 /* Copy MAC header from skb into command buffer */
1732 memcpy(out_cmd
->cmd
.tx
.hdr
, hdr
, hdr_len
);
1735 * Use the first empty entry in this queue's command buffer array
1736 * to contain the Tx command and MAC header concatenated together
1737 * (payload data will be in another buffer).
1738 * Size of this varies, due to varying MAC header length.
1739 * If end is not dword aligned, we'll have 2 extra bytes at the end
1740 * of the MAC header (device reads on dword boundaries).
1741 * We'll tell device about this padding later.
1743 len
= sizeof(struct iwl_tx_cmd
) +
1744 sizeof(struct iwl_cmd_header
) + hdr_len
;
1747 len
= (len
+ 3) & ~3;
1754 /* Physical address of this Tx command's header (not MAC header!),
1755 * within command buffer array. */
1756 txcmd_phys
= txq
->dma_addr_cmd
+ sizeof(struct iwl_cmd
) * idx
+
1757 offsetof(struct iwl_cmd
, hdr
);
1759 /* Add buffer containing Tx command and MAC(!) header to TFD's
1761 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, txcmd_phys
, len
);
1763 if (!(ctl
->flags
& IEEE80211_TXCTL_DO_NOT_ENCRYPT
))
1764 iwl4965_build_tx_cmd_hwcrypto(priv
, ctl
, out_cmd
, skb
, sta_id
);
1766 /* Set up TFD's 2nd entry to point directly to remainder of skb,
1767 * if any (802.11 null frames have no payload). */
1768 len
= skb
->len
- hdr_len
;
1770 phys_addr
= pci_map_single(priv
->pci_dev
, skb
->data
+ hdr_len
,
1771 len
, PCI_DMA_TODEVICE
);
1772 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, len
);
1775 /* Tell 4965 about any 2-byte padding after MAC header */
1777 out_cmd
->cmd
.tx
.tx_flags
|= TX_CMD_FLG_MH_PAD_MSK
;
1779 /* Total # bytes to be transmitted */
1780 len
= (u16
)skb
->len
;
1781 out_cmd
->cmd
.tx
.len
= cpu_to_le16(len
);
1783 /* TODO need this for burst mode later on */
1784 iwl4965_build_tx_cmd_basic(priv
, out_cmd
, ctl
, hdr
, unicast
, sta_id
);
1786 /* set is_hcca to 0; it probably will never be implemented */
1787 iwl4965_hw_build_tx_cmd_rate(priv
, out_cmd
, ctl
, hdr
, sta_id
, 0);
1789 iwl_update_tx_stats(priv
, fc
, len
);
1791 scratch_phys
= txcmd_phys
+ sizeof(struct iwl_cmd_header
) +
1792 offsetof(struct iwl_tx_cmd
, scratch
);
1793 out_cmd
->cmd
.tx
.dram_lsb_ptr
= cpu_to_le32(scratch_phys
);
1794 out_cmd
->cmd
.tx
.dram_msb_ptr
= iwl_get_dma_hi_address(scratch_phys
);
1796 if (!ieee80211_get_morefrag(hdr
)) {
1797 txq
->need_update
= 1;
1799 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
1800 priv
->stations
[sta_id
].tid
[tid
].seq_number
= seq_number
;
1804 txq
->need_update
= 0;
1807 iwl_print_hex_dump(priv
, IWL_DL_TX
, out_cmd
->cmd
.payload
,
1808 sizeof(out_cmd
->cmd
.tx
));
1810 iwl_print_hex_dump(priv
, IWL_DL_TX
, (u8
*)out_cmd
->cmd
.tx
.hdr
,
1811 ieee80211_get_hdrlen(fc
));
1813 /* Set up entry for this TFD in Tx byte-count array */
1814 priv
->cfg
->ops
->lib
->txq_update_byte_cnt_tbl(priv
, txq
, len
);
1816 /* Tell device the write index *just past* this latest filled TFD */
1817 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
1818 rc
= iwl_txq_update_write_ptr(priv
, txq
);
1819 spin_unlock_irqrestore(&priv
->lock
, flags
);
1824 if ((iwl_queue_space(q
) < q
->high_mark
)
1825 && priv
->mac80211_registered
) {
1826 if (wait_write_ptr
) {
1827 spin_lock_irqsave(&priv
->lock
, flags
);
1828 txq
->need_update
= 1;
1829 iwl_txq_update_write_ptr(priv
, txq
);
1830 spin_unlock_irqrestore(&priv
->lock
, flags
);
1833 ieee80211_stop_queue(priv
->hw
, ctl
->queue
);
1839 spin_unlock_irqrestore(&priv
->lock
, flags
);
1844 static void iwl4965_set_rate(struct iwl_priv
*priv
)
1846 const struct ieee80211_supported_band
*hw
= NULL
;
1847 struct ieee80211_rate
*rate
;
1850 hw
= iwl_get_hw_mode(priv
, priv
->band
);
1852 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
1856 priv
->active_rate
= 0;
1857 priv
->active_rate_basic
= 0;
1859 for (i
= 0; i
< hw
->n_bitrates
; i
++) {
1860 rate
= &(hw
->bitrates
[i
]);
1861 if (rate
->hw_value
< IWL_RATE_COUNT
)
1862 priv
->active_rate
|= (1 << rate
->hw_value
);
1865 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
1866 priv
->active_rate
, priv
->active_rate_basic
);
1869 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
1870 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
1873 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
1874 priv
->staging_rxon
.cck_basic_rates
=
1875 ((priv
->active_rate_basic
&
1876 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
1878 priv
->staging_rxon
.cck_basic_rates
=
1879 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
1881 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
1882 priv
->staging_rxon
.ofdm_basic_rates
=
1883 ((priv
->active_rate_basic
&
1884 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
1885 IWL_FIRST_OFDM_RATE
) & 0xFF;
1887 priv
->staging_rxon
.ofdm_basic_rates
=
1888 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
1891 void iwl4965_radio_kill_sw(struct iwl_priv
*priv
, int disable_radio
)
1893 unsigned long flags
;
1895 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
1898 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
1899 disable_radio
? "OFF" : "ON");
1901 if (disable_radio
) {
1902 iwl4965_scan_cancel(priv
);
1903 /* FIXME: This is a workaround for AP */
1904 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
1905 spin_lock_irqsave(&priv
->lock
, flags
);
1906 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
1907 CSR_UCODE_SW_BIT_RFKILL
);
1908 spin_unlock_irqrestore(&priv
->lock
, flags
);
1909 /* call the host command only if no hw rf-kill set */
1910 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
) &&
1912 iwl4965_send_card_state(priv
,
1913 CARD_STATE_CMD_DISABLE
,
1915 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
1917 /* make sure mac80211 stop sending Tx frame */
1918 if (priv
->mac80211_registered
)
1919 ieee80211_stop_queues(priv
->hw
);
1924 spin_lock_irqsave(&priv
->lock
, flags
);
1925 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
1927 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
1928 spin_unlock_irqrestore(&priv
->lock
, flags
);
1933 spin_lock_irqsave(&priv
->lock
, flags
);
1934 iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
1935 if (!iwl_grab_nic_access(priv
))
1936 iwl_release_nic_access(priv
);
1937 spin_unlock_irqrestore(&priv
->lock
, flags
);
1939 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
1940 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
1941 "disabled by HW switch\n");
1945 queue_work(priv
->workqueue
, &priv
->restart
);
1949 #define IWL_PACKET_RETRY_TIME HZ
1951 int iwl4965_is_duplicate_packet(struct iwl_priv
*priv
, struct ieee80211_hdr
*header
)
1953 u16 sc
= le16_to_cpu(header
->seq_ctrl
);
1954 u16 seq
= (sc
& IEEE80211_SCTL_SEQ
) >> 4;
1955 u16 frag
= sc
& IEEE80211_SCTL_FRAG
;
1956 u16
*last_seq
, *last_frag
;
1957 unsigned long *last_time
;
1959 switch (priv
->iw_mode
) {
1960 case IEEE80211_IF_TYPE_IBSS
:{
1961 struct list_head
*p
;
1962 struct iwl4965_ibss_seq
*entry
= NULL
;
1963 u8
*mac
= header
->addr2
;
1964 int index
= mac
[5] & (IWL_IBSS_MAC_HASH_SIZE
- 1);
1966 __list_for_each(p
, &priv
->ibss_mac_hash
[index
]) {
1967 entry
= list_entry(p
, struct iwl4965_ibss_seq
, list
);
1968 if (!compare_ether_addr(entry
->mac
, mac
))
1971 if (p
== &priv
->ibss_mac_hash
[index
]) {
1972 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
1974 IWL_ERROR("Cannot malloc new mac entry\n");
1977 memcpy(entry
->mac
, mac
, ETH_ALEN
);
1978 entry
->seq_num
= seq
;
1979 entry
->frag_num
= frag
;
1980 entry
->packet_time
= jiffies
;
1981 list_add(&entry
->list
, &priv
->ibss_mac_hash
[index
]);
1984 last_seq
= &entry
->seq_num
;
1985 last_frag
= &entry
->frag_num
;
1986 last_time
= &entry
->packet_time
;
1989 case IEEE80211_IF_TYPE_STA
:
1990 last_seq
= &priv
->last_seq_num
;
1991 last_frag
= &priv
->last_frag_num
;
1992 last_time
= &priv
->last_packet_time
;
1997 if ((*last_seq
== seq
) &&
1998 time_after(*last_time
+ IWL_PACKET_RETRY_TIME
, jiffies
)) {
1999 if (*last_frag
== frag
)
2001 if (*last_frag
+ 1 != frag
)
2002 /* out-of-order fragment */
2008 *last_time
= jiffies
;
2015 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
2017 #include "iwl-spectrum.h"
2019 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
2020 #define BEACON_TIME_MASK_HIGH 0xFF000000
2021 #define TIME_UNIT 1024
2024 * extended beacon time format
2025 * time in usec will be changed into a 32-bit value in 8:24 format
2026 * the high 1 byte is the beacon counts
2027 * the lower 3 bytes is the time in usec within one beacon interval
2030 static u32
iwl4965_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
2034 u32 interval
= beacon_interval
* 1024;
2036 if (!interval
|| !usec
)
2039 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
2040 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
2042 return (quot
<< 24) + rem
;
2045 /* base is usually what we get from ucode with each received frame,
2046 * the same as HW timer counter counting down
2049 static __le32
iwl4965_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
2051 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
2052 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
2053 u32 interval
= beacon_interval
* TIME_UNIT
;
2054 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
2055 (addon
& BEACON_TIME_MASK_HIGH
);
2057 if (base_low
> addon_low
)
2058 res
+= base_low
- addon_low
;
2059 else if (base_low
< addon_low
) {
2060 res
+= interval
+ base_low
- addon_low
;
2065 return cpu_to_le32(res
);
2068 static int iwl4965_get_measurement(struct iwl_priv
*priv
,
2069 struct ieee80211_measurement_params
*params
,
2072 struct iwl4965_spectrum_cmd spectrum
;
2073 struct iwl_rx_packet
*res
;
2074 struct iwl_host_cmd cmd
= {
2075 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
2076 .data
= (void *)&spectrum
,
2077 .meta
.flags
= CMD_WANT_SKB
,
2079 u32 add_time
= le64_to_cpu(params
->start_time
);
2081 int spectrum_resp_status
;
2082 int duration
= le16_to_cpu(params
->duration
);
2084 if (iwl_is_associated(priv
))
2086 iwl4965_usecs_to_beacons(
2087 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
2088 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2090 memset(&spectrum
, 0, sizeof(spectrum
));
2092 spectrum
.channel_count
= cpu_to_le16(1);
2094 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
2095 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
2096 cmd
.len
= sizeof(spectrum
);
2097 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
2099 if (iwl_is_associated(priv
))
2100 spectrum
.start_time
=
2101 iwl4965_add_beacon_time(priv
->last_beacon_time
,
2103 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2105 spectrum
.start_time
= 0;
2107 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
2108 spectrum
.channels
[0].channel
= params
->channel
;
2109 spectrum
.channels
[0].type
= type
;
2110 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
2111 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
2112 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
2114 rc
= iwl_send_cmd_sync(priv
, &cmd
);
2118 res
= (struct iwl_rx_packet
*)cmd
.meta
.u
.skb
->data
;
2119 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
2120 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
2124 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
2125 switch (spectrum_resp_status
) {
2126 case 0: /* Command will be handled */
2127 if (res
->u
.spectrum
.id
!= 0xff) {
2129 ("Replaced existing measurement: %d\n",
2130 res
->u
.spectrum
.id
);
2131 priv
->measurement_status
&= ~MEASUREMENT_READY
;
2133 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
2137 case 1: /* Command will not be handled */
2142 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
2148 static void iwl4965_txstatus_to_ieee(struct iwl_priv
*priv
,
2149 struct iwl_tx_info
*tx_sta
)
2152 tx_sta
->status
.ack_signal
= 0;
2153 tx_sta
->status
.excessive_retries
= 0;
2156 ieee80211_tx_status_irqsafe(priv
->hw
,
2157 tx_sta
->skb
[0], &(tx_sta
->status
));
2159 ieee80211_tx_status(priv
->hw
,
2160 tx_sta
->skb
[0], &(tx_sta
->status
));
2162 tx_sta
->skb
[0] = NULL
;
2166 * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
2168 * When FW advances 'R' index, all entries between old and new 'R' index
2169 * need to be reclaimed. As result, some free space forms. If there is
2170 * enough free space (> low mark), wake the stack that feeds us.
2172 int iwl4965_tx_queue_reclaim(struct iwl_priv
*priv
, int txq_id
, int index
)
2174 struct iwl_tx_queue
*txq
= &priv
->txq
[txq_id
];
2175 struct iwl_queue
*q
= &txq
->q
;
2178 if ((index
>= q
->n_bd
) || (iwl_queue_used(q
, index
) == 0)) {
2179 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
2180 "is out of range [0-%d] %d %d.\n", txq_id
,
2181 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
2185 for (index
= iwl_queue_inc_wrap(index
, q
->n_bd
);
2186 q
->read_ptr
!= index
;
2187 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
2188 if (txq_id
!= IWL_CMD_QUEUE_NUM
) {
2189 iwl4965_txstatus_to_ieee(priv
,
2190 &(txq
->txb
[txq
->q
.read_ptr
]));
2191 iwl_hw_txq_free_tfd(priv
, txq
);
2192 } else if (nfreed
> 1) {
2193 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index
,
2194 q
->write_ptr
, q
->read_ptr
);
2195 queue_work(priv
->workqueue
, &priv
->restart
);
2203 static int iwl4965_is_tx_success(u32 status
)
2205 status
&= TX_STATUS_MSK
;
2206 return (status
== TX_STATUS_SUCCESS
)
2207 || (status
== TX_STATUS_DIRECT_DONE
);
2210 /******************************************************************************
2212 * Generic RX handler implementations
2214 ******************************************************************************/
2215 #ifdef CONFIG_IWL4965_HT
2217 static inline int iwl4965_get_ra_sta_id(struct iwl_priv
*priv
,
2218 struct ieee80211_hdr
*hdr
)
2220 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)
2223 u8
*da
= ieee80211_get_DA(hdr
);
2224 return iwl_find_station(priv
, da
);
2228 static struct ieee80211_hdr
*iwl4965_tx_queue_get_hdr(
2229 struct iwl_priv
*priv
, int txq_id
, int idx
)
2231 if (priv
->txq
[txq_id
].txb
[idx
].skb
[0])
2232 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
2233 txb
[idx
].skb
[0]->data
;
2237 static inline u32
iwl4965_get_scd_ssn(struct iwl4965_tx_resp
*tx_resp
)
2239 __le32
*scd_ssn
= (__le32
*)((u32
*)&tx_resp
->status
+
2240 tx_resp
->frame_count
);
2241 return le32_to_cpu(*scd_ssn
) & MAX_SN
;
2246 * iwl4965_tx_status_reply_tx - Handle Tx rspnse for frames in aggregation queue
2248 static int iwl4965_tx_status_reply_tx(struct iwl_priv
*priv
,
2249 struct iwl_ht_agg
*agg
,
2250 struct iwl4965_tx_resp_agg
*tx_resp
,
2254 struct agg_tx_status
*frame_status
= &tx_resp
->status
;
2255 struct ieee80211_tx_status
*tx_status
= NULL
;
2256 struct ieee80211_hdr
*hdr
= NULL
;
2261 if (agg
->wait_for_ba
)
2262 IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
2264 agg
->frame_count
= tx_resp
->frame_count
;
2265 agg
->start_idx
= start_idx
;
2266 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
2269 /* # frames attempted by Tx command */
2270 if (agg
->frame_count
== 1) {
2271 /* Only one frame was attempted; no block-ack will arrive */
2272 status
= le16_to_cpu(frame_status
[0].status
);
2273 seq
= le16_to_cpu(frame_status
[0].sequence
);
2274 idx
= SEQ_TO_INDEX(seq
);
2275 txq_id
= SEQ_TO_QUEUE(seq
);
2277 /* FIXME: code repetition */
2278 IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
2279 agg
->frame_count
, agg
->start_idx
, idx
);
2281 tx_status
= &(priv
->txq
[txq_id
].txb
[idx
].status
);
2282 tx_status
->retry_count
= tx_resp
->failure_frame
;
2283 tx_status
->control
.flags
&= ~IEEE80211_TXCTL_AMPDU
;
2284 tx_status
->flags
= iwl4965_is_tx_success(status
)?
2285 IEEE80211_TX_STATUS_ACK
: 0;
2286 iwl4965_hwrate_to_tx_control(priv
,
2287 le32_to_cpu(tx_resp
->rate_n_flags
),
2288 &tx_status
->control
);
2289 /* FIXME: code repetition end */
2291 IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
2292 status
& 0xff, tx_resp
->failure_frame
);
2293 IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n",
2294 iwl4965_hw_get_rate_n_flags(tx_resp
->rate_n_flags
));
2296 agg
->wait_for_ba
= 0;
2298 /* Two or more frames were attempted; expect block-ack */
2300 int start
= agg
->start_idx
;
2302 /* Construct bit-map of pending frames within Tx window */
2303 for (i
= 0; i
< agg
->frame_count
; i
++) {
2305 status
= le16_to_cpu(frame_status
[i
].status
);
2306 seq
= le16_to_cpu(frame_status
[i
].sequence
);
2307 idx
= SEQ_TO_INDEX(seq
);
2308 txq_id
= SEQ_TO_QUEUE(seq
);
2310 if (status
& (AGG_TX_STATE_FEW_BYTES_MSK
|
2311 AGG_TX_STATE_ABORT_MSK
))
2314 IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
2315 agg
->frame_count
, txq_id
, idx
);
2317 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, idx
);
2319 sc
= le16_to_cpu(hdr
->seq_ctrl
);
2320 if (idx
!= (SEQ_TO_SN(sc
) & 0xff)) {
2321 IWL_ERROR("BUG_ON idx doesn't match seq control"
2322 " idx=%d, seq_idx=%d, seq=%d\n",
2328 IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n",
2329 i
, idx
, SEQ_TO_SN(sc
));
2333 sh
= (start
- idx
) + 0xff;
2334 bitmap
= bitmap
<< sh
;
2337 } else if (sh
< -64)
2338 sh
= 0xff - (start
- idx
);
2342 bitmap
= bitmap
<< sh
;
2345 bitmap
|= (1 << sh
);
2346 IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n",
2347 start
, (u32
)(bitmap
& 0xFFFFFFFF));
2350 agg
->bitmap
= bitmap
;
2351 agg
->start_idx
= start
;
2352 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
2353 IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n",
2354 agg
->frame_count
, agg
->start_idx
,
2355 (unsigned long long)agg
->bitmap
);
2358 agg
->wait_for_ba
= 1;
2365 * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response
2367 static void iwl4965_rx_reply_tx(struct iwl_priv
*priv
,
2368 struct iwl_rx_mem_buffer
*rxb
)
2370 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2371 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
2372 int txq_id
= SEQ_TO_QUEUE(sequence
);
2373 int index
= SEQ_TO_INDEX(sequence
);
2374 struct iwl_tx_queue
*txq
= &priv
->txq
[txq_id
];
2375 struct ieee80211_tx_status
*tx_status
;
2376 struct iwl4965_tx_resp
*tx_resp
= (void *)&pkt
->u
.raw
[0];
2377 u32 status
= le32_to_cpu(tx_resp
->status
);
2378 #ifdef CONFIG_IWL4965_HT
2379 int tid
= MAX_TID_COUNT
, sta_id
= IWL_INVALID_STATION
;
2380 struct ieee80211_hdr
*hdr
;
2384 if ((index
>= txq
->q
.n_bd
) || (iwl_queue_used(&txq
->q
, index
) == 0)) {
2385 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
2386 "is out of range [0-%d] %d %d\n", txq_id
,
2387 index
, txq
->q
.n_bd
, txq
->q
.write_ptr
,
2392 #ifdef CONFIG_IWL4965_HT
2393 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, index
);
2394 qc
= ieee80211_get_qos_ctrl(hdr
);
2397 tid
= le16_to_cpu(*qc
) & 0xf;
2399 sta_id
= iwl4965_get_ra_sta_id(priv
, hdr
);
2400 if (txq
->sched_retry
&& unlikely(sta_id
== IWL_INVALID_STATION
)) {
2401 IWL_ERROR("Station not known\n");
2405 if (txq
->sched_retry
) {
2406 const u32 scd_ssn
= iwl4965_get_scd_ssn(tx_resp
);
2407 struct iwl_ht_agg
*agg
= NULL
;
2412 agg
= &priv
->stations
[sta_id
].tid
[tid
].agg
;
2414 iwl4965_tx_status_reply_tx(priv
, agg
,
2415 (struct iwl4965_tx_resp_agg
*)tx_resp
, index
);
2417 if ((tx_resp
->frame_count
== 1) &&
2418 !iwl4965_is_tx_success(status
)) {
2419 /* TODO: send BAR */
2422 if (txq
->q
.read_ptr
!= (scd_ssn
& 0xff)) {
2424 index
= iwl_queue_dec_wrap(scd_ssn
& 0xff, txq
->q
.n_bd
);
2425 IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
2426 "%d index %d\n", scd_ssn
, index
);
2427 freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
2428 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
2430 if (iwl_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
2431 txq_id
>= 0 && priv
->mac80211_registered
&&
2432 agg
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
) {
2433 /* calculate mac80211 ampdu sw queue to wake */
2434 ampdu_q
= txq_id
- IWL_BACK_QUEUE_FIRST_ID
+
2436 if (agg
->state
== IWL_AGG_OFF
)
2437 ieee80211_wake_queue(priv
->hw
, txq_id
);
2439 ieee80211_wake_queue(priv
->hw
, ampdu_q
);
2441 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
2444 #endif /* CONFIG_IWL4965_HT */
2445 tx_status
= &(txq
->txb
[txq
->q
.read_ptr
].status
);
2447 tx_status
->retry_count
= tx_resp
->failure_frame
;
2449 iwl4965_is_tx_success(status
) ? IEEE80211_TX_STATUS_ACK
: 0;
2450 iwl4965_hwrate_to_tx_control(priv
, le32_to_cpu(tx_resp
->rate_n_flags
),
2451 &tx_status
->control
);
2453 IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags 0x%x "
2454 "retries %d\n", txq_id
, iwl4965_get_tx_fail_reason(status
),
2455 status
, le32_to_cpu(tx_resp
->rate_n_flags
),
2456 tx_resp
->failure_frame
);
2458 IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index
);
2459 #ifdef CONFIG_IWL4965_HT
2461 int freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
2462 if (tid
!= MAX_TID_COUNT
)
2463 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
2464 if (iwl_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
2465 (txq_id
>= 0) && priv
->mac80211_registered
)
2466 ieee80211_wake_queue(priv
->hw
, txq_id
);
2467 if (tid
!= MAX_TID_COUNT
)
2468 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
2471 #endif /* CONFIG_IWL4965_HT */
2473 if (iwl_check_bits(status
, TX_ABORT_REQUIRED_MSK
))
2474 IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
2478 static void iwl4965_rx_reply_alive(struct iwl_priv
*priv
,
2479 struct iwl_rx_mem_buffer
*rxb
)
2481 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2482 struct iwl4965_alive_resp
*palive
;
2483 struct delayed_work
*pwork
;
2485 palive
= &pkt
->u
.alive_frame
;
2487 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
2489 palive
->is_valid
, palive
->ver_type
,
2490 palive
->ver_subtype
);
2492 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
2493 IWL_DEBUG_INFO("Initialization Alive received.\n");
2494 memcpy(&priv
->card_alive_init
,
2495 &pkt
->u
.alive_frame
,
2496 sizeof(struct iwl4965_init_alive_resp
));
2497 pwork
= &priv
->init_alive_start
;
2499 IWL_DEBUG_INFO("Runtime Alive received.\n");
2500 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
2501 sizeof(struct iwl4965_alive_resp
));
2502 pwork
= &priv
->alive_start
;
2505 /* We delay the ALIVE response by 5ms to
2506 * give the HW RF Kill time to activate... */
2507 if (palive
->is_valid
== UCODE_VALID_OK
)
2508 queue_delayed_work(priv
->workqueue
, pwork
,
2509 msecs_to_jiffies(5));
2511 IWL_WARNING("uCode did not respond OK.\n");
2514 static void iwl4965_rx_reply_add_sta(struct iwl_priv
*priv
,
2515 struct iwl_rx_mem_buffer
*rxb
)
2517 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2519 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
2523 static void iwl4965_rx_reply_error(struct iwl_priv
*priv
,
2524 struct iwl_rx_mem_buffer
*rxb
)
2526 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2528 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
2529 "seq 0x%04X ser 0x%08X\n",
2530 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
2531 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
2532 pkt
->u
.err_resp
.cmd_id
,
2533 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
2534 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
2537 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
2539 static void iwl4965_rx_csa(struct iwl_priv
*priv
, struct iwl_rx_mem_buffer
*rxb
)
2541 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2542 struct iwl_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
2543 struct iwl4965_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
2544 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
2545 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
2546 rxon
->channel
= csa
->channel
;
2547 priv
->staging_rxon
.channel
= csa
->channel
;
2550 static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv
*priv
,
2551 struct iwl_rx_mem_buffer
*rxb
)
2553 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
2554 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2555 struct iwl4965_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
2557 if (!report
->state
) {
2558 IWL_DEBUG(IWL_DL_11H
,
2559 "Spectrum Measure Notification: Start\n");
2563 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
2564 priv
->measurement_status
|= MEASUREMENT_READY
;
2568 static void iwl4965_rx_pm_sleep_notif(struct iwl_priv
*priv
,
2569 struct iwl_rx_mem_buffer
*rxb
)
2571 #ifdef CONFIG_IWLWIFI_DEBUG
2572 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2573 struct iwl4965_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
2574 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
2575 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
2579 static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
2580 struct iwl_rx_mem_buffer
*rxb
)
2582 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2583 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
2584 "notification for %s:\n",
2585 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
2586 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
2589 static void iwl4965_bg_beacon_update(struct work_struct
*work
)
2591 struct iwl_priv
*priv
=
2592 container_of(work
, struct iwl_priv
, beacon_update
);
2593 struct sk_buff
*beacon
;
2595 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
2596 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
, NULL
);
2599 IWL_ERROR("update beacon failed\n");
2603 mutex_lock(&priv
->mutex
);
2604 /* new beacon skb is allocated every time; dispose previous.*/
2605 if (priv
->ibss_beacon
)
2606 dev_kfree_skb(priv
->ibss_beacon
);
2608 priv
->ibss_beacon
= beacon
;
2609 mutex_unlock(&priv
->mutex
);
2611 iwl4965_send_beacon_cmd(priv
);
2614 static void iwl4965_rx_beacon_notif(struct iwl_priv
*priv
,
2615 struct iwl_rx_mem_buffer
*rxb
)
2617 #ifdef CONFIG_IWLWIFI_DEBUG
2618 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2619 struct iwl4965_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
2620 u8 rate
= iwl4965_hw_get_rate(beacon
->beacon_notify_hdr
.rate_n_flags
);
2622 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
2623 "tsf %d %d rate %d\n",
2624 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
2625 beacon
->beacon_notify_hdr
.failure_frame
,
2626 le32_to_cpu(beacon
->ibss_mgr_status
),
2627 le32_to_cpu(beacon
->high_tsf
),
2628 le32_to_cpu(beacon
->low_tsf
), rate
);
2631 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
2632 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
2633 queue_work(priv
->workqueue
, &priv
->beacon_update
);
2636 /* Service response to REPLY_SCAN_CMD (0x80) */
2637 static void iwl4965_rx_reply_scan(struct iwl_priv
*priv
,
2638 struct iwl_rx_mem_buffer
*rxb
)
2640 #ifdef CONFIG_IWLWIFI_DEBUG
2641 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2642 struct iwl4965_scanreq_notification
*notif
=
2643 (struct iwl4965_scanreq_notification
*)pkt
->u
.raw
;
2645 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
2649 /* Service SCAN_START_NOTIFICATION (0x82) */
2650 static void iwl4965_rx_scan_start_notif(struct iwl_priv
*priv
,
2651 struct iwl_rx_mem_buffer
*rxb
)
2653 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2654 struct iwl4965_scanstart_notification
*notif
=
2655 (struct iwl4965_scanstart_notification
*)pkt
->u
.raw
;
2656 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
2657 IWL_DEBUG_SCAN("Scan start: "
2659 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
2661 notif
->band
? "bg" : "a",
2663 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
2666 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
2667 static void iwl4965_rx_scan_results_notif(struct iwl_priv
*priv
,
2668 struct iwl_rx_mem_buffer
*rxb
)
2670 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2671 struct iwl4965_scanresults_notification
*notif
=
2672 (struct iwl4965_scanresults_notification
*)pkt
->u
.raw
;
2674 IWL_DEBUG_SCAN("Scan ch.res: "
2676 "(TSF: 0x%08X:%08X) - %d "
2677 "elapsed=%lu usec (%dms since last)\n",
2679 notif
->band
? "bg" : "a",
2680 le32_to_cpu(notif
->tsf_high
),
2681 le32_to_cpu(notif
->tsf_low
),
2682 le32_to_cpu(notif
->statistics
[0]),
2683 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
2684 jiffies_to_msecs(elapsed_jiffies
2685 (priv
->last_scan_jiffies
, jiffies
)));
2687 priv
->last_scan_jiffies
= jiffies
;
2688 priv
->next_scan_jiffies
= 0;
2691 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
2692 static void iwl4965_rx_scan_complete_notif(struct iwl_priv
*priv
,
2693 struct iwl_rx_mem_buffer
*rxb
)
2695 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2696 struct iwl4965_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
2698 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
2699 scan_notif
->scanned_channels
,
2700 scan_notif
->tsf_low
,
2701 scan_notif
->tsf_high
, scan_notif
->status
);
2703 /* The HW is no longer scanning */
2704 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
2706 /* The scan completion notification came in, so kill that timer... */
2707 cancel_delayed_work(&priv
->scan_check
);
2709 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
2710 (priv
->scan_bands
== 2) ? "2.4" : "5.2",
2711 jiffies_to_msecs(elapsed_jiffies
2712 (priv
->scan_pass_start
, jiffies
)));
2714 /* Remove this scanned band from the list
2715 * of pending bands to scan */
2718 /* If a request to abort was given, or the scan did not succeed
2719 * then we reset the scan state machine and terminate,
2720 * re-queuing another scan if one has been requested */
2721 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2722 IWL_DEBUG_INFO("Aborted scan completed.\n");
2723 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
2725 /* If there are more bands on this scan pass reschedule */
2726 if (priv
->scan_bands
> 0)
2730 priv
->last_scan_jiffies
= jiffies
;
2731 priv
->next_scan_jiffies
= 0;
2732 IWL_DEBUG_INFO("Setting scan to off\n");
2734 clear_bit(STATUS_SCANNING
, &priv
->status
);
2736 IWL_DEBUG_INFO("Scan took %dms\n",
2737 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
2739 queue_work(priv
->workqueue
, &priv
->scan_completed
);
2744 priv
->scan_pass_start
= jiffies
;
2745 queue_work(priv
->workqueue
, &priv
->request_scan
);
2748 /* Handle notification from uCode that card's power state is changing
2749 * due to software, hardware, or critical temperature RFKILL */
2750 static void iwl4965_rx_card_state_notif(struct iwl_priv
*priv
,
2751 struct iwl_rx_mem_buffer
*rxb
)
2753 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2754 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
2755 unsigned long status
= priv
->status
;
2757 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
2758 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
2759 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
2761 if (flags
& (SW_CARD_DISABLED
| HW_CARD_DISABLED
|
2762 RF_CARD_DISABLED
)) {
2764 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2765 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
2767 if (!iwl_grab_nic_access(priv
)) {
2769 priv
, HBUS_TARG_MBX_C
,
2770 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
2772 iwl_release_nic_access(priv
);
2775 if (!(flags
& RXON_CARD_DISABLED
)) {
2776 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
2777 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
2778 if (!iwl_grab_nic_access(priv
)) {
2780 priv
, HBUS_TARG_MBX_C
,
2781 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
2783 iwl_release_nic_access(priv
);
2787 if (flags
& RF_CARD_DISABLED
) {
2788 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2789 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
2790 iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
2791 if (!iwl_grab_nic_access(priv
))
2792 iwl_release_nic_access(priv
);
2796 if (flags
& HW_CARD_DISABLED
)
2797 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2799 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
2802 if (flags
& SW_CARD_DISABLED
)
2803 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2805 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2807 if (!(flags
& RXON_CARD_DISABLED
))
2808 iwl4965_scan_cancel(priv
);
2810 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
2811 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
2812 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
2813 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
2814 queue_work(priv
->workqueue
, &priv
->rf_kill
);
2816 wake_up_interruptible(&priv
->wait_command_queue
);
2820 * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
2822 * Setup the RX handlers for each of the reply types sent from the uCode
2825 * This function chains into the hardware specific files for them to setup
2826 * any hardware specific handlers as well.
2828 static void iwl4965_setup_rx_handlers(struct iwl_priv
*priv
)
2830 priv
->rx_handlers
[REPLY_ALIVE
] = iwl4965_rx_reply_alive
;
2831 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl4965_rx_reply_add_sta
;
2832 priv
->rx_handlers
[REPLY_ERROR
] = iwl4965_rx_reply_error
;
2833 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl4965_rx_csa
;
2834 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
2835 iwl4965_rx_spectrum_measure_notif
;
2836 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl4965_rx_pm_sleep_notif
;
2837 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
2838 iwl4965_rx_pm_debug_statistics_notif
;
2839 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl4965_rx_beacon_notif
;
2842 * The same handler is used for both the REPLY to a discrete
2843 * statistics request from the host as well as for the periodic
2844 * statistics notifications (after received beacons) from the uCode.
2846 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl4965_hw_rx_statistics
;
2847 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl4965_hw_rx_statistics
;
2849 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl4965_rx_reply_scan
;
2850 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl4965_rx_scan_start_notif
;
2851 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
2852 iwl4965_rx_scan_results_notif
;
2853 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
2854 iwl4965_rx_scan_complete_notif
;
2855 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl4965_rx_card_state_notif
;
2856 priv
->rx_handlers
[REPLY_TX
] = iwl4965_rx_reply_tx
;
2858 /* Set up hardware specific Rx handlers */
2859 priv
->cfg
->ops
->lib
->rx_handler_setup(priv
);
2863 * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
2864 * @rxb: Rx buffer to reclaim
2866 * If an Rx buffer has an async callback associated with it the callback
2867 * will be executed. The attached skb (if present) will only be freed
2868 * if the callback returns 1
2870 static void iwl4965_tx_cmd_complete(struct iwl_priv
*priv
,
2871 struct iwl_rx_mem_buffer
*rxb
)
2873 struct iwl_rx_packet
*pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2874 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
2875 int txq_id
= SEQ_TO_QUEUE(sequence
);
2876 int index
= SEQ_TO_INDEX(sequence
);
2877 int huge
= sequence
& SEQ_HUGE_FRAME
;
2879 struct iwl_cmd
*cmd
;
2881 /* If a Tx command is being handled and it isn't in the actual
2882 * command queue then there a command routing bug has been introduced
2883 * in the queue management code. */
2884 if (txq_id
!= IWL_CMD_QUEUE_NUM
)
2885 IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
2886 txq_id
, pkt
->hdr
.cmd
);
2887 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
2889 cmd_index
= get_cmd_index(&priv
->txq
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
2890 cmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
2892 /* Input error checking is done when commands are added to queue. */
2893 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
2894 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
2896 } else if (cmd
->meta
.u
.callback
&&
2897 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
2900 iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
2902 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
2903 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
2904 wake_up_interruptible(&priv
->wait_command_queue
);
2909 * this should be called while priv->lock is locked
2911 static void __iwl_rx_replenish(struct iwl_priv
*priv
)
2913 iwl_rx_allocate(priv
);
2914 iwl_rx_queue_restock(priv
);
2919 * iwl_rx_handle - Main entry function for receiving responses from uCode
2921 * Uses the priv->rx_handlers callback function array to invoke
2922 * the appropriate handlers, including command responses,
2923 * frame-received notifications, and other notifications.
2925 void iwl_rx_handle(struct iwl_priv
*priv
)
2927 struct iwl_rx_mem_buffer
*rxb
;
2928 struct iwl_rx_packet
*pkt
;
2929 struct iwl_rx_queue
*rxq
= &priv
->rxq
;
2932 unsigned long flags
;
2936 /* uCode's read index (stored in shared DRAM) indicates the last Rx
2937 * buffer that the driver may process (last buffer filled by ucode). */
2938 r
= priv
->cfg
->ops
->lib
->shared_mem_rx_idx(priv
);
2941 /* Rx interrupt, but nothing sent from uCode */
2943 IWL_DEBUG(IWL_DL_RX
, "r = %d, i = %d\n", r
, i
);
2945 if (iwl_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
2949 rxb
= rxq
->queue
[i
];
2951 /* If an RXB doesn't have a Rx queue slot associated with it,
2952 * then a bug has been introduced in the queue refilling
2953 * routines -- catch it here */
2954 BUG_ON(rxb
== NULL
);
2956 rxq
->queue
[i
] = NULL
;
2958 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
2959 priv
->hw_params
.rx_buf_size
,
2960 PCI_DMA_FROMDEVICE
);
2961 pkt
= (struct iwl_rx_packet
*)rxb
->skb
->data
;
2963 /* Reclaim a command buffer only if this packet is a response
2964 * to a (driver-originated) command.
2965 * If the packet (e.g. Rx frame) originated from uCode,
2966 * there is no command buffer to reclaim.
2967 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
2968 * but apparently a few don't get set; catch them here. */
2969 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
2970 (pkt
->hdr
.cmd
!= REPLY_RX_PHY_CMD
) &&
2971 (pkt
->hdr
.cmd
!= REPLY_RX
) &&
2972 (pkt
->hdr
.cmd
!= REPLY_COMPRESSED_BA
) &&
2973 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
2974 (pkt
->hdr
.cmd
!= REPLY_TX
);
2976 /* Based on type of command response or notification,
2977 * handle those that need handling via function in
2978 * rx_handlers table. See iwl4965_setup_rx_handlers() */
2979 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
2980 IWL_DEBUG(IWL_DL_RX
, "r = %d, i = %d, %s, 0x%02x\n", r
,
2981 i
, get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
2982 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
2984 /* No handling needed */
2985 IWL_DEBUG(IWL_DL_RX
,
2986 "r %d i %d No handler needed for %s, 0x%02x\n",
2987 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
2992 /* Invoke any callbacks, transfer the skb to caller, and
2993 * fire off the (possibly) blocking iwl_send_cmd()
2994 * as we reclaim the driver command queue */
2995 if (rxb
&& rxb
->skb
)
2996 iwl4965_tx_cmd_complete(priv
, rxb
);
2998 IWL_WARNING("Claim null rxb?\n");
3001 /* For now we just don't re-use anything. We can tweak this
3002 * later to try and re-use notification packets and SKBs that
3003 * fail to Rx correctly */
3004 if (rxb
->skb
!= NULL
) {
3005 priv
->alloc_rxb_skb
--;
3006 dev_kfree_skb_any(rxb
->skb
);
3010 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
3011 priv
->hw_params
.rx_buf_size
,
3012 PCI_DMA_FROMDEVICE
);
3013 spin_lock_irqsave(&rxq
->lock
, flags
);
3014 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
3015 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3016 i
= (i
+ 1) & RX_QUEUE_MASK
;
3017 /* If there are a lot of unused frames,
3018 * restock the Rx queue so ucode wont assert. */
3023 __iwl_rx_replenish(priv
);
3029 /* Backtrack one entry */
3031 iwl_rx_queue_restock(priv
);
3033 /* Convert linear signal-to-noise ratio into dB */
3034 static u8 ratio2dB
[100] = {
3035 /* 0 1 2 3 4 5 6 7 8 9 */
3036 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
3037 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
3038 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
3039 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
3040 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
3041 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
3042 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
3043 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
3044 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
3045 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
3048 /* Calculates a relative dB value from a ratio of linear
3049 * (i.e. not dB) signal levels.
3050 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
3051 int iwl4965_calc_db_from_ratio(int sig_ratio
)
3053 /* 1000:1 or higher just report as 60 dB */
3054 if (sig_ratio
>= 1000)
3057 /* 100:1 or higher, divide by 10 and use table,
3058 * add 20 dB to make up for divide by 10 */
3059 if (sig_ratio
>= 100)
3060 return (20 + (int)ratio2dB
[sig_ratio
/10]);
3062 /* We shouldn't see this */
3066 /* Use table for ratios 1:1 - 99:1 */
3067 return (int)ratio2dB
[sig_ratio
];
3070 #define PERFECT_RSSI (-20) /* dBm */
3071 #define WORST_RSSI (-95) /* dBm */
3072 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
3074 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
3075 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
3076 * about formulas used below. */
3077 int iwl4965_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
3080 int degradation
= PERFECT_RSSI
- rssi_dbm
;
3082 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
3083 * as indicator; formula is (signal dbm - noise dbm).
3084 * SNR at or above 40 is a great signal (100%).
3085 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
3086 * Weakest usable signal is usually 10 - 15 dB SNR. */
3088 if (rssi_dbm
- noise_dbm
>= 40)
3090 else if (rssi_dbm
< noise_dbm
)
3092 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
3094 /* Else use just the signal level.
3095 * This formula is a least squares fit of data points collected and
3096 * compared with a reference system that had a percentage (%) display
3097 * for signal quality. */
3099 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
3100 (15 * RSSI_RANGE
+ 62 * degradation
)) /
3101 (RSSI_RANGE
* RSSI_RANGE
);
3105 else if (sig_qual
< 1)
3112 * iwl_txq_update_write_ptr - Send new write index to hardware
3114 static int iwl_txq_update_write_ptr(struct iwl_priv
*priv
,
3115 struct iwl_tx_queue
*txq
)
3119 int txq_id
= txq
->q
.id
;
3121 if (txq
->need_update
== 0)
3124 /* if we're trying to save power */
3125 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
3126 /* wake up nic if it's powered down ...
3127 * uCode will wake up, and interrupt us again, so next
3128 * time we'll skip this part. */
3129 reg
= iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
3131 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
3132 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg
);
3133 iwl_set_bit(priv
, CSR_GP_CNTRL
,
3134 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3138 /* restore this queue's parameters in nic hardware. */
3139 ret
= iwl_grab_nic_access(priv
);
3142 iwl_write_direct32(priv
, HBUS_TARG_WRPTR
,
3143 txq
->q
.write_ptr
| (txq_id
<< 8));
3144 iwl_release_nic_access(priv
);
3146 /* else not in power-save mode, uCode will never sleep when we're
3147 * trying to tx (during RFKILL, we're not trying to tx). */
3149 iwl_write32(priv
, HBUS_TARG_WRPTR
,
3150 txq
->q
.write_ptr
| (txq_id
<< 8));
3152 txq
->need_update
= 0;
3157 #ifdef CONFIG_IWLWIFI_DEBUG
3158 static void iwl4965_print_rx_config_cmd(struct iwl_priv
*priv
)
3160 struct iwl_rxon_cmd
*rxon
= &priv
->staging_rxon
;
3161 DECLARE_MAC_BUF(mac
);
3163 IWL_DEBUG_RADIO("RX CONFIG:\n");
3164 iwl_print_hex_dump(priv
, IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
3165 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
3166 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
3167 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
3168 le32_to_cpu(rxon
->filter_flags
));
3169 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
3170 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
3171 rxon
->ofdm_basic_rates
);
3172 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
3173 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
3174 print_mac(mac
, rxon
->node_addr
));
3175 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
3176 print_mac(mac
, rxon
->bssid_addr
));
3177 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
3181 static void iwl4965_enable_interrupts(struct iwl_priv
*priv
)
3183 IWL_DEBUG_ISR("Enabling interrupts\n");
3184 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
3185 iwl_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
3188 /* call this function to flush any scheduled tasklet */
3189 static inline void iwl_synchronize_irq(struct iwl_priv
*priv
)
3191 /* wait to make sure we flush pedding tasklet*/
3192 synchronize_irq(priv
->pci_dev
->irq
);
3193 tasklet_kill(&priv
->irq_tasklet
);
3196 static inline void iwl4965_disable_interrupts(struct iwl_priv
*priv
)
3198 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
3200 /* disable interrupts from uCode/NIC to host */
3201 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
3203 /* acknowledge/clear/reset any interrupts still pending
3204 * from uCode or flow handler (Rx/Tx DMA) */
3205 iwl_write32(priv
, CSR_INT
, 0xffffffff);
3206 iwl_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
3207 IWL_DEBUG_ISR("Disabled interrupts\n");
3210 static const char *desc_lookup(int i
)
3218 return "BAD_CHECKSUM";
3220 return "NMI_INTERRUPT";
3224 return "FATAL_ERROR";
3230 #define ERROR_START_OFFSET (1 * sizeof(u32))
3231 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
3233 static void iwl4965_dump_nic_error_log(struct iwl_priv
*priv
)
3236 u32 desc
, time
, count
, base
, data1
;
3237 u32 blink1
, blink2
, ilink1
, ilink2
;
3240 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
3242 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
3243 IWL_ERROR("Not valid error log pointer 0x%08X\n", base
);
3247 rc
= iwl_grab_nic_access(priv
);
3249 IWL_WARNING("Can not read from adapter at this time.\n");
3253 count
= iwl_read_targ_mem(priv
, base
);
3255 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
3256 IWL_ERROR("Start IWL Error Log Dump:\n");
3257 IWL_ERROR("Status: 0x%08lX, count: %d\n", priv
->status
, count
);
3260 desc
= iwl_read_targ_mem(priv
, base
+ 1 * sizeof(u32
));
3261 blink1
= iwl_read_targ_mem(priv
, base
+ 3 * sizeof(u32
));
3262 blink2
= iwl_read_targ_mem(priv
, base
+ 4 * sizeof(u32
));
3263 ilink1
= iwl_read_targ_mem(priv
, base
+ 5 * sizeof(u32
));
3264 ilink2
= iwl_read_targ_mem(priv
, base
+ 6 * sizeof(u32
));
3265 data1
= iwl_read_targ_mem(priv
, base
+ 7 * sizeof(u32
));
3266 data2
= iwl_read_targ_mem(priv
, base
+ 8 * sizeof(u32
));
3267 line
= iwl_read_targ_mem(priv
, base
+ 9 * sizeof(u32
));
3268 time
= iwl_read_targ_mem(priv
, base
+ 11 * sizeof(u32
));
3270 IWL_ERROR("Desc Time "
3271 "data1 data2 line\n");
3272 IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n",
3273 desc_lookup(desc
), desc
, time
, data1
, data2
, line
);
3274 IWL_ERROR("blink1 blink2 ilink1 ilink2\n");
3275 IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1
, blink2
,
3278 iwl_release_nic_access(priv
);
3281 #define EVENT_START_OFFSET (4 * sizeof(u32))
3284 * iwl4965_print_event_log - Dump error event log to syslog
3286 * NOTE: Must be called with iwl_grab_nic_access() already obtained!
3288 static void iwl4965_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
3289 u32 num_events
, u32 mode
)
3292 u32 base
; /* SRAM byte address of event log header */
3293 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
3294 u32 ptr
; /* SRAM byte address of log data */
3295 u32 ev
, time
, data
; /* event log data */
3297 if (num_events
== 0)
3300 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
3303 event_size
= 2 * sizeof(u32
);
3305 event_size
= 3 * sizeof(u32
);
3307 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
3309 /* "time" is actually "data" for mode 0 (no timestamp).
3310 * place event id # at far right for easier visual parsing. */
3311 for (i
= 0; i
< num_events
; i
++) {
3312 ev
= iwl_read_targ_mem(priv
, ptr
);
3314 time
= iwl_read_targ_mem(priv
, ptr
);
3317 IWL_ERROR("0x%08x\t%04u\n", time
, ev
); /* data, ev */
3319 data
= iwl_read_targ_mem(priv
, ptr
);
3321 IWL_ERROR("%010u\t0x%08x\t%04u\n", time
, data
, ev
);
3326 static void iwl4965_dump_nic_event_log(struct iwl_priv
*priv
)
3329 u32 base
; /* SRAM byte address of event log header */
3330 u32 capacity
; /* event log capacity in # entries */
3331 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
3332 u32 num_wraps
; /* # times uCode wrapped to top of log */
3333 u32 next_entry
; /* index of next entry to be written by uCode */
3334 u32 size
; /* # entries that we'll print */
3336 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
3337 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
3338 IWL_ERROR("Invalid event log pointer 0x%08X\n", base
);
3342 rc
= iwl_grab_nic_access(priv
);
3344 IWL_WARNING("Can not read from adapter at this time.\n");
3348 /* event log header */
3349 capacity
= iwl_read_targ_mem(priv
, base
);
3350 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
3351 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
3352 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
3354 size
= num_wraps
? capacity
: next_entry
;
3356 /* bail out if nothing in log */
3358 IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
3359 iwl_release_nic_access(priv
);
3363 IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
3366 /* if uCode has wrapped back to top of log, start at the oldest entry,
3367 * i.e the next one that uCode would fill. */
3369 iwl4965_print_event_log(priv
, next_entry
,
3370 capacity
- next_entry
, mode
);
3372 /* (then/else) start at top of log */
3373 iwl4965_print_event_log(priv
, 0, next_entry
, mode
);
3375 iwl_release_nic_access(priv
);
3379 * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
3381 static void iwl4965_irq_handle_error(struct iwl_priv
*priv
)
3383 /* Set the FW error flag -- cleared on iwl4965_down */
3384 set_bit(STATUS_FW_ERROR
, &priv
->status
);
3386 /* Cancel currently queued command. */
3387 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
3389 #ifdef CONFIG_IWLWIFI_DEBUG
3390 if (priv
->debug_level
& IWL_DL_FW_ERRORS
) {
3391 iwl4965_dump_nic_error_log(priv
);
3392 iwl4965_dump_nic_event_log(priv
);
3393 iwl4965_print_rx_config_cmd(priv
);
3397 wake_up_interruptible(&priv
->wait_command_queue
);
3399 /* Keep the restart process from trying to send host
3400 * commands by clearing the INIT status bit */
3401 clear_bit(STATUS_READY
, &priv
->status
);
3403 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
3404 IWL_DEBUG(IWL_DL_FW_ERRORS
,
3405 "Restarting adapter due to uCode error.\n");
3407 if (iwl_is_associated(priv
)) {
3408 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
3409 sizeof(priv
->recovery_rxon
));
3410 priv
->error_recovering
= 1;
3412 if (priv
->cfg
->mod_params
->restart_fw
)
3413 queue_work(priv
->workqueue
, &priv
->restart
);
3417 static void iwl4965_error_recovery(struct iwl_priv
*priv
)
3419 unsigned long flags
;
3421 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
3422 sizeof(priv
->staging_rxon
));
3423 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
3424 iwl4965_commit_rxon(priv
);
3426 iwl_rxon_add_station(priv
, priv
->bssid
, 1);
3428 spin_lock_irqsave(&priv
->lock
, flags
);
3429 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
3430 priv
->error_recovering
= 0;
3431 spin_unlock_irqrestore(&priv
->lock
, flags
);
3434 static void iwl4965_irq_tasklet(struct iwl_priv
*priv
)
3436 u32 inta
, handled
= 0;
3438 unsigned long flags
;
3439 #ifdef CONFIG_IWLWIFI_DEBUG
3443 spin_lock_irqsave(&priv
->lock
, flags
);
3445 /* Ack/clear/reset pending uCode interrupts.
3446 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
3447 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
3448 inta
= iwl_read32(priv
, CSR_INT
);
3449 iwl_write32(priv
, CSR_INT
, inta
);
3451 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
3452 * Any new interrupts that happen after this, either while we're
3453 * in this tasklet, or later, will show up in next ISR/tasklet. */
3454 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
3455 iwl_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
3457 #ifdef CONFIG_IWLWIFI_DEBUG
3458 if (priv
->debug_level
& IWL_DL_ISR
) {
3459 /* just for debug */
3460 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
3461 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
3462 inta
, inta_mask
, inta_fh
);
3466 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
3467 * atomic, make sure that inta covers all the interrupts that
3468 * we've discovered, even if FH interrupt came in just after
3469 * reading CSR_INT. */
3470 if (inta_fh
& CSR49_FH_INT_RX_MASK
)
3471 inta
|= CSR_INT_BIT_FH_RX
;
3472 if (inta_fh
& CSR49_FH_INT_TX_MASK
)
3473 inta
|= CSR_INT_BIT_FH_TX
;
3475 /* Now service all interrupt bits discovered above. */
3476 if (inta
& CSR_INT_BIT_HW_ERR
) {
3477 IWL_ERROR("Microcode HW error detected. Restarting.\n");
3479 /* Tell the device to stop sending interrupts */
3480 iwl4965_disable_interrupts(priv
);
3482 iwl4965_irq_handle_error(priv
);
3484 handled
|= CSR_INT_BIT_HW_ERR
;
3486 spin_unlock_irqrestore(&priv
->lock
, flags
);
3491 #ifdef CONFIG_IWLWIFI_DEBUG
3492 if (priv
->debug_level
& (IWL_DL_ISR
)) {
3493 /* NIC fires this, but we don't use it, redundant with WAKEUP */
3494 if (inta
& CSR_INT_BIT_SCD
)
3495 IWL_DEBUG_ISR("Scheduler finished to transmit "
3496 "the frame/frames.\n");
3498 /* Alive notification via Rx interrupt will do the real work */
3499 if (inta
& CSR_INT_BIT_ALIVE
)
3500 IWL_DEBUG_ISR("Alive interrupt\n");
3503 /* Safely ignore these bits for debug checks below */
3504 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
3506 /* HW RF KILL switch toggled */
3507 if (inta
& CSR_INT_BIT_RF_KILL
) {
3509 if (!(iwl_read32(priv
, CSR_GP_CNTRL
) &
3510 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
3513 IWL_DEBUG(IWL_DL_RF_KILL
, "RF_KILL bit toggled to %s.\n",
3514 hw_rf_kill
? "disable radio":"enable radio");
3516 /* Queue restart only if RF_KILL switch was set to "kill"
3517 * when we loaded driver, and is now set to "enable".
3518 * After we're Alive, RF_KILL gets handled by
3519 * iwl4965_rx_card_state_notif() */
3520 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
3521 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3522 queue_work(priv
->workqueue
, &priv
->restart
);
3525 handled
|= CSR_INT_BIT_RF_KILL
;
3528 /* Chip got too hot and stopped itself */
3529 if (inta
& CSR_INT_BIT_CT_KILL
) {
3530 IWL_ERROR("Microcode CT kill error detected.\n");
3531 handled
|= CSR_INT_BIT_CT_KILL
;
3534 /* Error detected by uCode */
3535 if (inta
& CSR_INT_BIT_SW_ERR
) {
3536 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
3538 iwl4965_irq_handle_error(priv
);
3539 handled
|= CSR_INT_BIT_SW_ERR
;
3542 /* uCode wakes up after power-down sleep */
3543 if (inta
& CSR_INT_BIT_WAKEUP
) {
3544 IWL_DEBUG_ISR("Wakeup interrupt\n");
3545 iwl_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
3546 iwl_txq_update_write_ptr(priv
, &priv
->txq
[0]);
3547 iwl_txq_update_write_ptr(priv
, &priv
->txq
[1]);
3548 iwl_txq_update_write_ptr(priv
, &priv
->txq
[2]);
3549 iwl_txq_update_write_ptr(priv
, &priv
->txq
[3]);
3550 iwl_txq_update_write_ptr(priv
, &priv
->txq
[4]);
3551 iwl_txq_update_write_ptr(priv
, &priv
->txq
[5]);
3553 handled
|= CSR_INT_BIT_WAKEUP
;
3556 /* All uCode command responses, including Tx command responses,
3557 * Rx "responses" (frame-received notification), and other
3558 * notifications from uCode come through here*/
3559 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
3560 iwl_rx_handle(priv
);
3561 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
3564 if (inta
& CSR_INT_BIT_FH_TX
) {
3565 IWL_DEBUG_ISR("Tx interrupt\n");
3566 handled
|= CSR_INT_BIT_FH_TX
;
3569 if (inta
& ~handled
)
3570 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
3572 if (inta
& ~CSR_INI_SET_MASK
) {
3573 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
3574 inta
& ~CSR_INI_SET_MASK
);
3575 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
3578 /* Re-enable all interrupts */
3579 /* only Re-enable if diabled by irq */
3580 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
3581 iwl4965_enable_interrupts(priv
);
3583 #ifdef CONFIG_IWLWIFI_DEBUG
3584 if (priv
->debug_level
& (IWL_DL_ISR
)) {
3585 inta
= iwl_read32(priv
, CSR_INT
);
3586 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
3587 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
3588 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
3589 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
3592 spin_unlock_irqrestore(&priv
->lock
, flags
);
3595 static irqreturn_t
iwl4965_isr(int irq
, void *data
)
3597 struct iwl_priv
*priv
= data
;
3598 u32 inta
, inta_mask
;
3603 spin_lock(&priv
->lock
);
3605 /* Disable (but don't clear!) interrupts here to avoid
3606 * back-to-back ISRs and sporadic interrupts from our NIC.
3607 * If we have something to service, the tasklet will re-enable ints.
3608 * If we *don't* have something, we'll re-enable before leaving here. */
3609 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
3610 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
3612 /* Discover which interrupts are active/pending */
3613 inta
= iwl_read32(priv
, CSR_INT
);
3614 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
3616 /* Ignore interrupt if there's nothing in NIC to service.
3617 * This may be due to IRQ shared with another device,
3618 * or due to sporadic interrupts thrown from our NIC. */
3619 if (!inta
&& !inta_fh
) {
3620 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
3624 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
3625 /* Hardware disappeared. It might have already raised
3627 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
3631 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
3632 inta
, inta_mask
, inta_fh
);
3634 inta
&= ~CSR_INT_BIT_SCD
;
3636 /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
3637 if (likely(inta
|| inta_fh
))
3638 tasklet_schedule(&priv
->irq_tasklet
);
3641 spin_unlock(&priv
->lock
);
3645 /* re-enable interrupts here since we don't have anything to service. */
3646 /* only Re-enable if diabled by irq */
3647 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
3648 iwl4965_enable_interrupts(priv
);
3649 spin_unlock(&priv
->lock
);
3653 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
3654 * sending probe req. This should be set long enough to hear probe responses
3655 * from more than one AP. */
3656 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
3657 #define IWL_ACTIVE_DWELL_TIME_52 (10)
3659 /* For faster active scanning, scan will move to the next channel if fewer than
3660 * PLCP_QUIET_THRESH packets are heard on this channel within
3661 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
3662 * time if it's a quiet channel (nothing responded to our probe, and there's
3663 * no other traffic).
3664 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
3665 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
3666 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
3668 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
3669 * Must be set longer than active dwell time.
3670 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
3671 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
3672 #define IWL_PASSIVE_DWELL_TIME_52 (10)
3673 #define IWL_PASSIVE_DWELL_BASE (100)
3674 #define IWL_CHANNEL_TUNE_TIME 5
3676 static inline u16
iwl4965_get_active_dwell_time(struct iwl_priv
*priv
,
3677 enum ieee80211_band band
)
3679 if (band
== IEEE80211_BAND_5GHZ
)
3680 return IWL_ACTIVE_DWELL_TIME_52
;
3682 return IWL_ACTIVE_DWELL_TIME_24
;
3685 static u16
iwl4965_get_passive_dwell_time(struct iwl_priv
*priv
,
3686 enum ieee80211_band band
)
3688 u16 active
= iwl4965_get_active_dwell_time(priv
, band
);
3689 u16 passive
= (band
!= IEEE80211_BAND_5GHZ
) ?
3690 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
3691 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
3693 if (iwl_is_associated(priv
)) {
3694 /* If we're associated, we clamp the maximum passive
3695 * dwell time to be 98% of the beacon interval (minus
3696 * 2 * channel tune time) */
3697 passive
= priv
->beacon_int
;
3698 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
3699 passive
= IWL_PASSIVE_DWELL_BASE
;
3700 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
3703 if (passive
<= active
)
3704 passive
= active
+ 1;
3709 static int iwl4965_get_channels_for_scan(struct iwl_priv
*priv
,
3710 enum ieee80211_band band
,
3711 u8 is_active
, u8 direct_mask
,
3712 struct iwl4965_scan_channel
*scan_ch
)
3714 const struct ieee80211_channel
*channels
= NULL
;
3715 const struct ieee80211_supported_band
*sband
;
3716 const struct iwl_channel_info
*ch_info
;
3717 u16 passive_dwell
= 0;
3718 u16 active_dwell
= 0;
3721 sband
= iwl_get_hw_mode(priv
, band
);
3725 channels
= sband
->channels
;
3727 active_dwell
= iwl4965_get_active_dwell_time(priv
, band
);
3728 passive_dwell
= iwl4965_get_passive_dwell_time(priv
, band
);
3730 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
3731 if (channels
[i
].flags
& IEEE80211_CHAN_DISABLED
)
3734 scan_ch
->channel
= ieee80211_frequency_to_channel(channels
[i
].center_freq
);
3736 ch_info
= iwl_get_channel_info(priv
, band
,
3738 if (!is_channel_valid(ch_info
)) {
3739 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
3744 if (!is_active
|| is_channel_passive(ch_info
) ||
3745 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
))
3746 scan_ch
->type
= 0; /* passive */
3748 scan_ch
->type
= 1; /* active */
3750 if (scan_ch
->type
& 1)
3751 scan_ch
->type
|= (direct_mask
<< 1);
3753 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
3754 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
3756 /* Set txpower levels to defaults */
3757 scan_ch
->tpc
.dsp_atten
= 110;
3758 /* scan_pwr_info->tpc.dsp_atten; */
3760 /*scan_pwr_info->tpc.tx_gain; */
3761 if (band
== IEEE80211_BAND_5GHZ
)
3762 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
3764 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
3765 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
3767 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
3771 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
3773 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
3774 (scan_ch
->type
& 1) ?
3775 active_dwell
: passive_dwell
);
3781 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
3785 /******************************************************************************
3787 * uCode download functions
3789 ******************************************************************************/
3791 static void iwl4965_dealloc_ucode_pci(struct iwl_priv
*priv
)
3793 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
3794 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
3795 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
3796 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
3797 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
3798 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
3801 static void iwl4965_nic_start(struct iwl_priv
*priv
)
3803 /* Remove all resets to allow NIC to operate */
3804 iwl_write32(priv
, CSR_RESET
, 0);
3809 * iwl4965_read_ucode - Read uCode images from disk file.
3811 * Copy into buffers for card to fetch via bus-mastering
3813 static int iwl4965_read_ucode(struct iwl_priv
*priv
)
3815 struct iwl4965_ucode
*ucode
;
3817 const struct firmware
*ucode_raw
;
3818 const char *name
= priv
->cfg
->fw_name
;
3821 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
3823 /* Ask kernel firmware_class module to get the boot firmware off disk.
3824 * request_firmware() is synchronous, file is in memory on return. */
3825 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
3827 IWL_ERROR("%s firmware file req failed: Reason %d\n",
3832 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
3833 name
, ucode_raw
->size
);
3835 /* Make sure that we got at least our header! */
3836 if (ucode_raw
->size
< sizeof(*ucode
)) {
3837 IWL_ERROR("File size way too small!\n");
3842 /* Data from ucode file: header followed by uCode images */
3843 ucode
= (void *)ucode_raw
->data
;
3845 ver
= le32_to_cpu(ucode
->ver
);
3846 inst_size
= le32_to_cpu(ucode
->inst_size
);
3847 data_size
= le32_to_cpu(ucode
->data_size
);
3848 init_size
= le32_to_cpu(ucode
->init_size
);
3849 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
3850 boot_size
= le32_to_cpu(ucode
->boot_size
);
3852 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
3853 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
3855 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
3857 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
3859 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
3861 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
3864 /* Verify size of file vs. image size info in file's header */
3865 if (ucode_raw
->size
< sizeof(*ucode
) +
3866 inst_size
+ data_size
+ init_size
+
3867 init_data_size
+ boot_size
) {
3869 IWL_DEBUG_INFO("uCode file size %d too small\n",
3870 (int)ucode_raw
->size
);
3875 /* Verify that uCode images will fit in card's SRAM */
3876 if (inst_size
> priv
->hw_params
.max_inst_size
) {
3877 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
3883 if (data_size
> priv
->hw_params
.max_data_size
) {
3884 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
3889 if (init_size
> priv
->hw_params
.max_inst_size
) {
3891 ("uCode init instr len %d too large to fit in\n",
3896 if (init_data_size
> priv
->hw_params
.max_data_size
) {
3898 ("uCode init data len %d too large to fit in\n",
3903 if (boot_size
> priv
->hw_params
.max_bsm_size
) {
3905 ("uCode boot instr len %d too large to fit in\n",
3911 /* Allocate ucode buffers for card's bus-master loading ... */
3913 /* Runtime instructions and 2 copies of data:
3914 * 1) unmodified from disk
3915 * 2) backup cache for save/restore during power-downs */
3916 priv
->ucode_code
.len
= inst_size
;
3917 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
3919 priv
->ucode_data
.len
= data_size
;
3920 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
3922 priv
->ucode_data_backup
.len
= data_size
;
3923 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
3925 /* Initialization instructions and data */
3926 if (init_size
&& init_data_size
) {
3927 priv
->ucode_init
.len
= init_size
;
3928 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
3930 priv
->ucode_init_data
.len
= init_data_size
;
3931 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
3933 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
3937 /* Bootstrap (instructions only, no data) */
3939 priv
->ucode_boot
.len
= boot_size
;
3940 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
3942 if (!priv
->ucode_boot
.v_addr
)
3946 /* Copy images into buffers for card's bus-master reads ... */
3948 /* Runtime instructions (first block of data in file) */
3949 src
= &ucode
->data
[0];
3950 len
= priv
->ucode_code
.len
;
3951 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
3952 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
3953 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
3954 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
3956 /* Runtime data (2nd block)
3957 * NOTE: Copy into backup buffer will be done in iwl4965_up() */
3958 src
= &ucode
->data
[inst_size
];
3959 len
= priv
->ucode_data
.len
;
3960 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
3961 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
3962 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
3964 /* Initialization instructions (3rd block) */
3966 src
= &ucode
->data
[inst_size
+ data_size
];
3967 len
= priv
->ucode_init
.len
;
3968 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
3970 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
3973 /* Initialization data (4th block) */
3974 if (init_data_size
) {
3975 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
3976 len
= priv
->ucode_init_data
.len
;
3977 IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
3979 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
3982 /* Bootstrap instructions (5th block) */
3983 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
3984 len
= priv
->ucode_boot
.len
;
3985 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len
);
3986 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
3988 /* We have our copies now, allow OS release its copies */
3989 release_firmware(ucode_raw
);
3993 IWL_ERROR("failed to allocate pci memory\n");
3995 iwl4965_dealloc_ucode_pci(priv
);
3998 release_firmware(ucode_raw
);
4005 * iwl4965_alive_start - called after REPLY_ALIVE notification received
4006 * from protocol/runtime uCode (initialization uCode's
4007 * Alive gets handled by iwl4965_init_alive_start()).
4009 static void iwl4965_alive_start(struct iwl_priv
*priv
)
4013 IWL_DEBUG_INFO("Runtime Alive received.\n");
4015 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
4016 /* We had an error bringing up the hardware, so take it
4017 * all the way back down so we can try again */
4018 IWL_DEBUG_INFO("Alive failed.\n");
4022 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
4023 * This is a paranoid check, because we would not have gotten the
4024 * "runtime" alive if code weren't properly loaded. */
4025 if (iwl_verify_ucode(priv
)) {
4026 /* Runtime instruction load was bad;
4027 * take it all the way back down so we can try again */
4028 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
4032 iwlcore_clear_stations_table(priv
);
4034 ret
= priv
->cfg
->ops
->lib
->alive_notify(priv
);
4036 IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
4041 /* After the ALIVE response, we can send host commands to 4965 uCode */
4042 set_bit(STATUS_ALIVE
, &priv
->status
);
4044 /* Clear out the uCode error bit if it is set */
4045 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
4047 if (iwl_is_rfkill(priv
))
4050 ieee80211_start_queues(priv
->hw
);
4052 priv
->active_rate
= priv
->rates_mask
;
4053 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
4055 if (iwl_is_associated(priv
)) {
4056 struct iwl_rxon_cmd
*active_rxon
=
4057 (struct iwl_rxon_cmd
*)&priv
->active_rxon
;
4059 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
4060 sizeof(priv
->staging_rxon
));
4061 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4063 /* Initialize our rx_config data */
4064 iwl4965_connection_init_rx_config(priv
);
4065 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
4068 /* Configure Bluetooth device coexistence support */
4069 iwl4965_send_bt_config(priv
);
4071 /* Configure the adapter for unassociated operation */
4072 iwl4965_commit_rxon(priv
);
4074 /* At this point, the NIC is initialized and operational */
4075 priv
->notif_missed_beacons
= 0;
4077 iwl4965_rf_kill_ct_config(priv
);
4079 iwl_leds_register(priv
);
4081 IWL_DEBUG_INFO("ALIVE processing complete.\n");
4082 set_bit(STATUS_READY
, &priv
->status
);
4083 wake_up_interruptible(&priv
->wait_command_queue
);
4085 if (priv
->error_recovering
)
4086 iwl4965_error_recovery(priv
);
4088 iwlcore_low_level_notify(priv
, IWLCORE_START_EVT
);
4089 ieee80211_notify_mac(priv
->hw
, IEEE80211_NOTIFY_RE_ASSOC
);
4093 queue_work(priv
->workqueue
, &priv
->restart
);
4096 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
);
4098 static void __iwl4965_down(struct iwl_priv
*priv
)
4100 unsigned long flags
;
4101 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
4102 struct ieee80211_conf
*conf
= NULL
;
4104 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
4106 conf
= ieee80211_get_hw_conf(priv
->hw
);
4109 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
4111 iwl_leds_unregister(priv
);
4113 iwlcore_low_level_notify(priv
, IWLCORE_STOP_EVT
);
4115 iwlcore_clear_stations_table(priv
);
4117 /* Unblock any waiting calls */
4118 wake_up_interruptible_all(&priv
->wait_command_queue
);
4120 /* Wipe out the EXIT_PENDING status bit if we are not actually
4121 * exiting the module */
4123 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
4125 /* stop and reset the on-board processor */
4126 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
4128 /* tell the device to stop sending interrupts */
4129 spin_lock_irqsave(&priv
->lock
, flags
);
4130 iwl4965_disable_interrupts(priv
);
4131 spin_unlock_irqrestore(&priv
->lock
, flags
);
4132 iwl_synchronize_irq(priv
);
4134 if (priv
->mac80211_registered
)
4135 ieee80211_stop_queues(priv
->hw
);
4137 /* If we have not previously called iwl4965_init() then
4138 * clear all bits but the RF Kill and SUSPEND bits and return */
4139 if (!iwl_is_init(priv
)) {
4140 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
4142 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
4144 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
4145 STATUS_GEO_CONFIGURED
|
4146 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
4151 /* ...otherwise clear out all the status bits but the RF Kill and
4152 * SUSPEND bits and continue taking the NIC down. */
4153 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
4155 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
4157 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
4158 STATUS_GEO_CONFIGURED
|
4159 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
4161 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
4164 spin_lock_irqsave(&priv
->lock
, flags
);
4165 iwl_clear_bit(priv
, CSR_GP_CNTRL
,
4166 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
4167 spin_unlock_irqrestore(&priv
->lock
, flags
);
4169 iwl4965_hw_txq_ctx_stop(priv
);
4170 iwl4965_hw_rxq_stop(priv
);
4172 spin_lock_irqsave(&priv
->lock
, flags
);
4173 if (!iwl_grab_nic_access(priv
)) {
4174 iwl_write_prph(priv
, APMG_CLK_DIS_REG
,
4175 APMG_CLK_VAL_DMA_CLK_RQT
);
4176 iwl_release_nic_access(priv
);
4178 spin_unlock_irqrestore(&priv
->lock
, flags
);
4182 iwl4965_hw_nic_stop_master(priv
);
4183 iwl_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
4184 iwl4965_hw_nic_reset(priv
);
4185 priv
->cfg
->ops
->lib
->free_shared_mem(priv
);
4188 memset(&priv
->card_alive
, 0, sizeof(struct iwl4965_alive_resp
));
4190 if (priv
->ibss_beacon
)
4191 dev_kfree_skb(priv
->ibss_beacon
);
4192 priv
->ibss_beacon
= NULL
;
4194 /* clear out any free frames */
4195 iwl_clear_free_frames(priv
);
4198 static void iwl4965_down(struct iwl_priv
*priv
)
4200 mutex_lock(&priv
->mutex
);
4201 __iwl4965_down(priv
);
4202 mutex_unlock(&priv
->mutex
);
4204 iwl4965_cancel_deferred_work(priv
);
4207 #define MAX_HW_RESTARTS 5
4209 static int __iwl4965_up(struct iwl_priv
*priv
)
4214 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
4215 IWL_WARNING("Exit pending; will not bring the NIC up\n");
4219 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
4220 IWL_WARNING("Radio disabled by SW RF kill (module "
4222 iwl_rfkill_set_hw_state(priv
);
4226 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
4227 IWL_ERROR("ucode not available for device bringup\n");
4231 /* If platform's RF_KILL switch is NOT set to KILL */
4232 if (iwl_read32(priv
, CSR_GP_CNTRL
) &
4233 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
4234 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
4236 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
4237 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
4238 iwl_rfkill_set_hw_state(priv
);
4239 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
4244 iwl_rfkill_set_hw_state(priv
);
4245 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
4247 ret
= priv
->cfg
->ops
->lib
->alloc_shared_mem(priv
);
4249 IWL_ERROR("Unable to allocate shared memory\n");
4253 ret
= iwl_hw_nic_init(priv
);
4255 IWL_ERROR("Unable to init nic\n");
4259 /* make sure rfkill handshake bits are cleared */
4260 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
4261 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
4262 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
4264 /* clear (again), then enable host interrupts */
4265 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
4266 iwl4965_enable_interrupts(priv
);
4268 /* really make sure rfkill handshake bits are cleared */
4269 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
4270 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
4272 /* Copy original ucode data image from disk into backup cache.
4273 * This will be used to initialize the on-board processor's
4274 * data SRAM for a clean start when the runtime program first loads. */
4275 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
4276 priv
->ucode_data
.len
);
4278 /* We return success when we resume from suspend and rf_kill is on. */
4279 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
4282 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
4284 iwlcore_clear_stations_table(priv
);
4286 /* load bootstrap state machine,
4287 * load bootstrap program into processor's memory,
4288 * prepare to load the "initialize" uCode */
4289 ret
= priv
->cfg
->ops
->lib
->load_ucode(priv
);
4292 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret
);
4296 /* start card; "initialize" will load runtime ucode */
4297 iwl4965_nic_start(priv
);
4299 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
4304 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
4305 __iwl4965_down(priv
);
4307 /* tried to restart and config the device for as long as our
4308 * patience could withstand */
4309 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
4314 /*****************************************************************************
4316 * Workqueue callbacks
4318 *****************************************************************************/
4320 static void iwl4965_bg_init_alive_start(struct work_struct
*data
)
4322 struct iwl_priv
*priv
=
4323 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
4325 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4328 mutex_lock(&priv
->mutex
);
4329 priv
->cfg
->ops
->lib
->init_alive_start(priv
);
4330 mutex_unlock(&priv
->mutex
);
4333 static void iwl4965_bg_alive_start(struct work_struct
*data
)
4335 struct iwl_priv
*priv
=
4336 container_of(data
, struct iwl_priv
, alive_start
.work
);
4338 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4341 mutex_lock(&priv
->mutex
);
4342 iwl4965_alive_start(priv
);
4343 mutex_unlock(&priv
->mutex
);
4346 static void iwl4965_bg_rf_kill(struct work_struct
*work
)
4348 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, rf_kill
);
4350 wake_up_interruptible(&priv
->wait_command_queue
);
4352 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4355 mutex_lock(&priv
->mutex
);
4357 if (!iwl_is_rfkill(priv
)) {
4358 IWL_DEBUG(IWL_DL_RF_KILL
,
4359 "HW and/or SW RF Kill no longer active, restarting "
4361 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4362 queue_work(priv
->workqueue
, &priv
->restart
);
4364 /* make sure mac80211 stop sending Tx frame */
4365 if (priv
->mac80211_registered
)
4366 ieee80211_stop_queues(priv
->hw
);
4368 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
4369 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
4370 "disabled by SW switch\n");
4372 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
4373 "Kill switch must be turned off for "
4374 "wireless networking to work.\n");
4376 iwl_rfkill_set_hw_state(priv
);
4378 mutex_unlock(&priv
->mutex
);
4381 static void iwl4965_bg_set_monitor(struct work_struct
*work
)
4383 struct iwl_priv
*priv
= container_of(work
,
4384 struct iwl_priv
, set_monitor
);
4386 IWL_DEBUG(IWL_DL_STATE
, "setting monitor mode\n");
4388 mutex_lock(&priv
->mutex
);
4390 if (!iwl_is_ready(priv
))
4391 IWL_DEBUG(IWL_DL_STATE
, "leave - not ready\n");
4393 if (iwl4965_set_mode(priv
, IEEE80211_IF_TYPE_MNTR
) != 0)
4394 IWL_ERROR("iwl4965_set_mode() failed\n");
4396 mutex_unlock(&priv
->mutex
);
4399 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
4401 static void iwl4965_bg_scan_check(struct work_struct
*data
)
4403 struct iwl_priv
*priv
=
4404 container_of(data
, struct iwl_priv
, scan_check
.work
);
4406 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4409 mutex_lock(&priv
->mutex
);
4410 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
4411 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
4412 IWL_DEBUG(IWL_DL_SCAN
, "Scan completion watchdog resetting "
4414 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
4416 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4417 iwl4965_send_scan_abort(priv
);
4419 mutex_unlock(&priv
->mutex
);
4422 static void iwl4965_bg_request_scan(struct work_struct
*data
)
4424 struct iwl_priv
*priv
=
4425 container_of(data
, struct iwl_priv
, request_scan
);
4426 struct iwl_host_cmd cmd
= {
4427 .id
= REPLY_SCAN_CMD
,
4428 .len
= sizeof(struct iwl4965_scan_cmd
),
4429 .meta
.flags
= CMD_SIZE_HUGE
,
4431 struct iwl4965_scan_cmd
*scan
;
4432 struct ieee80211_conf
*conf
= NULL
;
4434 enum ieee80211_band band
;
4438 conf
= ieee80211_get_hw_conf(priv
->hw
);
4440 mutex_lock(&priv
->mutex
);
4442 if (!iwl_is_ready(priv
)) {
4443 IWL_WARNING("request scan called when driver not ready.\n");
4447 /* Make sure the scan wasn't cancelled before this queued work
4448 * was given the chance to run... */
4449 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
4452 /* This should never be called or scheduled if there is currently
4453 * a scan active in the hardware. */
4454 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
4455 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
4456 "Ignoring second request.\n");
4461 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
4462 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
4466 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
4467 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
4471 if (iwl_is_rfkill(priv
)) {
4472 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
4476 if (!test_bit(STATUS_READY
, &priv
->status
)) {
4477 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
4481 if (!priv
->scan_bands
) {
4482 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
4487 priv
->scan
= kmalloc(sizeof(struct iwl4965_scan_cmd
) +
4488 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
4495 memset(scan
, 0, sizeof(struct iwl4965_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
4497 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
4498 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
4500 if (iwl_is_associated(priv
)) {
4503 u32 suspend_time
= 100;
4504 u32 scan_suspend_time
= 100;
4505 unsigned long flags
;
4507 IWL_DEBUG_INFO("Scanning while associated...\n");
4509 spin_lock_irqsave(&priv
->lock
, flags
);
4510 interval
= priv
->beacon_int
;
4511 spin_unlock_irqrestore(&priv
->lock
, flags
);
4513 scan
->suspend_time
= 0;
4514 scan
->max_out_time
= cpu_to_le32(200 * 1024);
4516 interval
= suspend_time
;
4518 extra
= (suspend_time
/ interval
) << 22;
4519 scan_suspend_time
= (extra
|
4520 ((suspend_time
% interval
) * 1024));
4521 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
4522 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
4523 scan_suspend_time
, interval
);
4526 /* We should add the ability for user to lock to PASSIVE ONLY */
4527 if (priv
->one_direct_scan
) {
4529 ("Kicking off one direct scan for '%s'\n",
4530 iwl4965_escape_essid(priv
->direct_ssid
,
4531 priv
->direct_ssid_len
));
4532 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
4533 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
4534 memcpy(scan
->direct_scan
[0].ssid
,
4535 priv
->direct_ssid
, priv
->direct_ssid_len
);
4537 } else if (!iwl_is_associated(priv
) && priv
->essid_len
) {
4539 ("Kicking off one direct scan for '%s' when not associated\n",
4540 iwl4965_escape_essid(priv
->essid
, priv
->essid_len
));
4541 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
4542 scan
->direct_scan
[0].len
= priv
->essid_len
;
4543 memcpy(scan
->direct_scan
[0].ssid
, priv
->essid
, priv
->essid_len
);
4546 IWL_DEBUG_SCAN("Kicking off one indirect scan.\n");
4550 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
4551 scan
->tx_cmd
.sta_id
= priv
->hw_params
.bcast_sta_id
;
4552 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
4555 switch (priv
->scan_bands
) {
4557 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
4558 scan
->tx_cmd
.rate_n_flags
=
4559 iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP
,
4560 RATE_MCS_ANT_B_MSK
|RATE_MCS_CCK_MSK
);
4562 scan
->good_CRC_th
= 0;
4563 band
= IEEE80211_BAND_2GHZ
;
4567 scan
->tx_cmd
.rate_n_flags
=
4568 iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP
,
4569 RATE_MCS_ANT_B_MSK
);
4570 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
4571 band
= IEEE80211_BAND_5GHZ
;
4575 IWL_WARNING("Invalid scan band count\n");
4579 /* We don't build a direct scan probe request; the uCode will do
4580 * that based on the direct_mask added to each channel entry */
4581 cmd_len
= iwl4965_fill_probe_req(priv
, band
,
4582 (struct ieee80211_mgmt
*)scan
->data
,
4583 IWL_MAX_SCAN_SIZE
- sizeof(*scan
), 0);
4585 scan
->tx_cmd
.len
= cpu_to_le16(cmd_len
);
4586 /* select Rx chains */
4588 /* Force use of chains B and C (0x6) for scan Rx.
4589 * Avoid A (0x1) because of its off-channel reception on A-band.
4590 * MIMO is not used here, but value is required to make uCode happy. */
4591 scan
->rx_chain
= RXON_RX_CHAIN_DRIVER_FORCE_MSK
|
4592 cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS
) |
4593 (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS
) |
4594 (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS
));
4596 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
)
4597 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
4600 scan
->channel_count
=
4601 iwl4965_get_channels_for_scan(
4602 priv
, band
, 1, /* active */
4604 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
4606 scan
->channel_count
=
4607 iwl4965_get_channels_for_scan(
4608 priv
, band
, 0, /* passive */
4610 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
4612 scan
->filter_flags
|= (RXON_FILTER_ACCEPT_GRP_MSK
|
4613 RXON_FILTER_BCON_AWARE_MSK
);
4614 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
4615 scan
->channel_count
* sizeof(struct iwl4965_scan_channel
);
4617 scan
->len
= cpu_to_le16(cmd
.len
);
4619 set_bit(STATUS_SCAN_HW
, &priv
->status
);
4620 ret
= iwl_send_cmd_sync(priv
, &cmd
);
4624 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
4625 IWL_SCAN_CHECK_WATCHDOG
);
4627 mutex_unlock(&priv
->mutex
);
4631 /* inform mac80211 scan aborted */
4632 queue_work(priv
->workqueue
, &priv
->scan_completed
);
4633 mutex_unlock(&priv
->mutex
);
4636 static void iwl4965_bg_up(struct work_struct
*data
)
4638 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, up
);
4640 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4643 mutex_lock(&priv
->mutex
);
4645 mutex_unlock(&priv
->mutex
);
4648 static void iwl4965_bg_restart(struct work_struct
*data
)
4650 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
4652 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4656 queue_work(priv
->workqueue
, &priv
->up
);
4659 static void iwl4965_bg_rx_replenish(struct work_struct
*data
)
4661 struct iwl_priv
*priv
=
4662 container_of(data
, struct iwl_priv
, rx_replenish
);
4664 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4667 mutex_lock(&priv
->mutex
);
4668 iwl_rx_replenish(priv
);
4669 mutex_unlock(&priv
->mutex
);
4672 #define IWL_DELAY_NEXT_SCAN (HZ*2)
4674 static void iwl4965_post_associate(struct iwl_priv
*priv
)
4676 struct ieee80211_conf
*conf
= NULL
;
4678 DECLARE_MAC_BUF(mac
);
4680 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
4681 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
4685 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
4687 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
4690 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4694 if (!priv
->vif
|| !priv
->is_open
)
4697 iwl4965_scan_cancel_timeout(priv
, 200);
4699 conf
= ieee80211_get_hw_conf(priv
->hw
);
4701 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4702 iwl4965_commit_rxon(priv
);
4704 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
4705 iwl4965_setup_rxon_timing(priv
);
4706 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
4707 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
4709 IWL_WARNING("REPLY_RXON_TIMING failed - "
4710 "Attempting to continue.\n");
4712 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
4714 #ifdef CONFIG_IWL4965_HT
4715 if (priv
->current_ht_config
.is_ht
)
4716 iwl_set_rxon_ht(priv
, &priv
->current_ht_config
);
4717 #endif /* CONFIG_IWL4965_HT*/
4718 iwl_set_rxon_chain(priv
);
4719 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
4721 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
4722 priv
->assoc_id
, priv
->beacon_int
);
4724 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
4725 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
4727 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
4729 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
4730 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
4731 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
4733 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
4735 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
4736 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
4740 iwl4965_commit_rxon(priv
);
4742 switch (priv
->iw_mode
) {
4743 case IEEE80211_IF_TYPE_STA
:
4744 iwl4965_rate_scale_init(priv
->hw
, IWL_AP_ID
);
4747 case IEEE80211_IF_TYPE_IBSS
:
4749 /* clear out the station table */
4750 iwlcore_clear_stations_table(priv
);
4752 iwl_rxon_add_station(priv
, iwl_bcast_addr
, 0);
4753 iwl_rxon_add_station(priv
, priv
->bssid
, 0);
4754 iwl4965_rate_scale_init(priv
->hw
, IWL_STA_ID
);
4755 iwl4965_send_beacon_cmd(priv
);
4760 IWL_ERROR("%s Should not be called in %d mode\n",
4761 __FUNCTION__
, priv
->iw_mode
);
4765 iwl4965_sequence_reset(priv
);
4767 /* Enable Rx differential gain and sensitivity calibrations */
4768 iwl_chain_noise_reset(priv
);
4769 priv
->start_calib
= 1;
4771 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
4772 priv
->assoc_station_added
= 1;
4774 iwl4965_activate_qos(priv
, 0);
4776 iwl_power_update_mode(priv
, 0);
4777 /* we have just associated, don't start scan too early */
4778 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
4782 static void iwl4965_bg_post_associate(struct work_struct
*data
)
4784 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
,
4785 post_associate
.work
);
4787 mutex_lock(&priv
->mutex
);
4788 iwl4965_post_associate(priv
);
4789 mutex_unlock(&priv
->mutex
);
4793 static void iwl4965_bg_abort_scan(struct work_struct
*work
)
4795 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, abort_scan
);
4797 if (!iwl_is_ready(priv
))
4800 mutex_lock(&priv
->mutex
);
4802 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
4803 iwl4965_send_scan_abort(priv
);
4805 mutex_unlock(&priv
->mutex
);
4808 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
4810 static void iwl4965_bg_scan_completed(struct work_struct
*work
)
4812 struct iwl_priv
*priv
=
4813 container_of(work
, struct iwl_priv
, scan_completed
);
4815 IWL_DEBUG(IWL_DL_SCAN
, "SCAN complete scan\n");
4817 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
4820 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
4821 iwl4965_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
4823 ieee80211_scan_completed(priv
->hw
);
4825 /* Since setting the TXPOWER may have been deferred while
4826 * performing the scan, fire one off */
4827 mutex_lock(&priv
->mutex
);
4828 iwl4965_hw_reg_send_txpower(priv
);
4829 mutex_unlock(&priv
->mutex
);
4832 /*****************************************************************************
4834 * mac80211 entry point functions
4836 *****************************************************************************/
4838 #define UCODE_READY_TIMEOUT (2 * HZ)
4840 static int iwl4965_mac_start(struct ieee80211_hw
*hw
)
4842 struct iwl_priv
*priv
= hw
->priv
;
4845 IWL_DEBUG_MAC80211("enter\n");
4847 if (pci_enable_device(priv
->pci_dev
)) {
4848 IWL_ERROR("Fail to pci_enable_device\n");
4851 pci_restore_state(priv
->pci_dev
);
4852 pci_enable_msi(priv
->pci_dev
);
4854 ret
= request_irq(priv
->pci_dev
->irq
, iwl4965_isr
, IRQF_SHARED
,
4857 IWL_ERROR("Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
4858 goto out_disable_msi
;
4861 /* we should be verifying the device is ready to be opened */
4862 mutex_lock(&priv
->mutex
);
4864 memset(&priv
->staging_rxon
, 0, sizeof(struct iwl_rxon_cmd
));
4865 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
4866 * ucode filename and max sizes are card-specific. */
4868 if (!priv
->ucode_code
.len
) {
4869 ret
= iwl4965_read_ucode(priv
);
4871 IWL_ERROR("Could not read microcode: %d\n", ret
);
4872 mutex_unlock(&priv
->mutex
);
4873 goto out_release_irq
;
4877 ret
= __iwl4965_up(priv
);
4879 mutex_unlock(&priv
->mutex
);
4882 goto out_release_irq
;
4884 IWL_DEBUG_INFO("Start UP work done.\n");
4886 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
4889 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
4890 * mac80211 will not be run successfully. */
4891 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
4892 test_bit(STATUS_READY
, &priv
->status
),
4893 UCODE_READY_TIMEOUT
);
4895 if (!test_bit(STATUS_READY
, &priv
->status
)) {
4896 IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
4897 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
4899 goto out_release_irq
;
4904 IWL_DEBUG_MAC80211("leave\n");
4908 free_irq(priv
->pci_dev
->irq
, priv
);
4910 pci_disable_msi(priv
->pci_dev
);
4911 pci_disable_device(priv
->pci_dev
);
4913 IWL_DEBUG_MAC80211("leave - failed\n");
4917 static void iwl4965_mac_stop(struct ieee80211_hw
*hw
)
4919 struct iwl_priv
*priv
= hw
->priv
;
4921 IWL_DEBUG_MAC80211("enter\n");
4923 if (!priv
->is_open
) {
4924 IWL_DEBUG_MAC80211("leave - skip\n");
4930 if (iwl_is_ready_rf(priv
)) {
4931 /* stop mac, cancel any scan request and clear
4932 * RXON_FILTER_ASSOC_MSK BIT
4934 mutex_lock(&priv
->mutex
);
4935 iwl4965_scan_cancel_timeout(priv
, 100);
4936 cancel_delayed_work(&priv
->post_associate
);
4937 mutex_unlock(&priv
->mutex
);
4942 flush_workqueue(priv
->workqueue
);
4943 free_irq(priv
->pci_dev
->irq
, priv
);
4944 pci_disable_msi(priv
->pci_dev
);
4945 pci_save_state(priv
->pci_dev
);
4946 pci_disable_device(priv
->pci_dev
);
4948 IWL_DEBUG_MAC80211("leave\n");
4951 static int iwl4965_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
4952 struct ieee80211_tx_control
*ctl
)
4954 struct iwl_priv
*priv
= hw
->priv
;
4956 IWL_DEBUG_MAC80211("enter\n");
4958 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
4959 IWL_DEBUG_MAC80211("leave - monitor\n");
4963 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
4964 ctl
->tx_rate
->bitrate
);
4966 if (iwl4965_tx_skb(priv
, skb
, ctl
))
4967 dev_kfree_skb_any(skb
);
4969 IWL_DEBUG_MAC80211("leave\n");
4973 static int iwl4965_mac_add_interface(struct ieee80211_hw
*hw
,
4974 struct ieee80211_if_init_conf
*conf
)
4976 struct iwl_priv
*priv
= hw
->priv
;
4977 unsigned long flags
;
4978 DECLARE_MAC_BUF(mac
);
4980 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
4983 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
4987 spin_lock_irqsave(&priv
->lock
, flags
);
4988 priv
->vif
= conf
->vif
;
4990 spin_unlock_irqrestore(&priv
->lock
, flags
);
4992 mutex_lock(&priv
->mutex
);
4994 if (conf
->mac_addr
) {
4995 IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac
, conf
->mac_addr
));
4996 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
4999 if (iwl_is_ready(priv
))
5000 iwl4965_set_mode(priv
, conf
->type
);
5002 mutex_unlock(&priv
->mutex
);
5004 IWL_DEBUG_MAC80211("leave\n");
5009 * iwl4965_mac_config - mac80211 config callback
5011 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
5012 * be set inappropriately and the driver currently sets the hardware up to
5013 * use it whenever needed.
5015 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
5017 struct iwl_priv
*priv
= hw
->priv
;
5018 const struct iwl_channel_info
*ch_info
;
5019 unsigned long flags
;
5022 mutex_lock(&priv
->mutex
);
5023 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
5025 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
5027 if (!iwl_is_ready(priv
)) {
5028 IWL_DEBUG_MAC80211("leave - not ready\n");
5033 if (unlikely(!priv
->cfg
->mod_params
->disable_hw_scan
&&
5034 test_bit(STATUS_SCANNING
, &priv
->status
))) {
5035 IWL_DEBUG_MAC80211("leave - scanning\n");
5036 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
5037 mutex_unlock(&priv
->mutex
);
5041 spin_lock_irqsave(&priv
->lock
, flags
);
5043 ch_info
= iwl_get_channel_info(priv
, conf
->channel
->band
,
5044 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
5045 if (!is_channel_valid(ch_info
)) {
5046 IWL_DEBUG_MAC80211("leave - invalid channel\n");
5047 spin_unlock_irqrestore(&priv
->lock
, flags
);
5052 #ifdef CONFIG_IWL4965_HT
5053 /* if we are switching from ht to 2.4 clear flags
5054 * from any ht related info since 2.4 does not
5056 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != conf
->channel
->hw_value
)
5057 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
5058 && !(conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
)
5061 priv
->staging_rxon
.flags
= 0;
5062 #endif /* CONFIG_IWL4965_HT */
5064 iwl_set_rxon_channel(priv
, conf
->channel
->band
,
5065 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
5067 iwl4965_set_flags_for_phymode(priv
, conf
->channel
->band
);
5069 /* The list of supported rates and rate mask can be different
5070 * for each band; since the band may have changed, reset
5071 * the rate mask to what mac80211 lists */
5072 iwl4965_set_rate(priv
);
5074 spin_unlock_irqrestore(&priv
->lock
, flags
);
5076 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
5077 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
5078 iwl4965_hw_channel_switch(priv
, conf
->channel
);
5083 if (priv
->cfg
->ops
->lib
->radio_kill_sw
)
5084 priv
->cfg
->ops
->lib
->radio_kill_sw(priv
, !conf
->radio_enabled
);
5086 if (!conf
->radio_enabled
) {
5087 IWL_DEBUG_MAC80211("leave - radio disabled\n");
5091 if (iwl_is_rfkill(priv
)) {
5092 IWL_DEBUG_MAC80211("leave - RF kill\n");
5097 iwl4965_set_rate(priv
);
5099 if (memcmp(&priv
->active_rxon
,
5100 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
5101 iwl4965_commit_rxon(priv
);
5103 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
5105 IWL_DEBUG_MAC80211("leave\n");
5108 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
5109 mutex_unlock(&priv
->mutex
);
5113 static void iwl4965_config_ap(struct iwl_priv
*priv
)
5117 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5120 /* The following should be done only at AP bring up */
5121 if ((priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) == 0) {
5123 /* RXON - unassoc (to set timing command) */
5124 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5125 iwl4965_commit_rxon(priv
);
5128 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
5129 iwl4965_setup_rxon_timing(priv
);
5130 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
5131 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
5133 IWL_WARNING("REPLY_RXON_TIMING failed - "
5134 "Attempting to continue.\n");
5136 iwl_set_rxon_chain(priv
);
5138 /* FIXME: what should be the assoc_id for AP? */
5139 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
5140 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
5141 priv
->staging_rxon
.flags
|=
5142 RXON_FLG_SHORT_PREAMBLE_MSK
;
5144 priv
->staging_rxon
.flags
&=
5145 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
5147 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
5148 if (priv
->assoc_capability
&
5149 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
5150 priv
->staging_rxon
.flags
|=
5151 RXON_FLG_SHORT_SLOT_MSK
;
5153 priv
->staging_rxon
.flags
&=
5154 ~RXON_FLG_SHORT_SLOT_MSK
;
5156 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
5157 priv
->staging_rxon
.flags
&=
5158 ~RXON_FLG_SHORT_SLOT_MSK
;
5160 /* restore RXON assoc */
5161 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
5162 iwl4965_commit_rxon(priv
);
5163 iwl4965_activate_qos(priv
, 1);
5164 iwl_rxon_add_station(priv
, iwl_bcast_addr
, 0);
5166 iwl4965_send_beacon_cmd(priv
);
5168 /* FIXME - we need to add code here to detect a totally new
5169 * configuration, reset the AP, unassoc, rxon timing, assoc,
5170 * clear sta table, add BCAST sta... */
5173 static int iwl4965_mac_config_interface(struct ieee80211_hw
*hw
,
5174 struct ieee80211_vif
*vif
,
5175 struct ieee80211_if_conf
*conf
)
5177 struct iwl_priv
*priv
= hw
->priv
;
5178 DECLARE_MAC_BUF(mac
);
5179 unsigned long flags
;
5185 if (priv
->vif
!= vif
) {
5186 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
5190 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
5191 (!conf
->beacon
|| !conf
->ssid_len
)) {
5193 ("Leaving in AP mode because HostAPD is not ready.\n");
5197 if (!iwl_is_alive(priv
))
5200 mutex_lock(&priv
->mutex
);
5203 IWL_DEBUG_MAC80211("bssid: %s\n",
5204 print_mac(mac
, conf
->bssid
));
5207 * very dubious code was here; the probe filtering flag is never set:
5209 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
5210 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
5213 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
5215 conf
->bssid
= priv
->mac_addr
;
5216 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
5217 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
5218 print_mac(mac
, conf
->bssid
));
5220 if (priv
->ibss_beacon
)
5221 dev_kfree_skb(priv
->ibss_beacon
);
5223 priv
->ibss_beacon
= conf
->beacon
;
5226 if (iwl_is_rfkill(priv
))
5229 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
5230 !is_multicast_ether_addr(conf
->bssid
)) {
5231 /* If there is currently a HW scan going on in the background
5232 * then we need to cancel it else the RXON below will fail. */
5233 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
5234 IWL_WARNING("Aborted scan still in progress "
5236 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
5237 mutex_unlock(&priv
->mutex
);
5240 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
5242 /* TODO: Audit driver for usage of these members and see
5243 * if mac80211 deprecates them (priv->bssid looks like it
5244 * shouldn't be there, but I haven't scanned the IBSS code
5245 * to verify) - jpk */
5246 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
5248 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
5249 iwl4965_config_ap(priv
);
5251 rc
= iwl4965_commit_rxon(priv
);
5252 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
5253 iwl_rxon_add_station(
5254 priv
, priv
->active_rxon
.bssid_addr
, 1);
5258 iwl4965_scan_cancel_timeout(priv
, 100);
5259 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5260 iwl4965_commit_rxon(priv
);
5264 spin_lock_irqsave(&priv
->lock
, flags
);
5265 if (!conf
->ssid_len
)
5266 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
5268 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
5270 priv
->essid_len
= conf
->ssid_len
;
5271 spin_unlock_irqrestore(&priv
->lock
, flags
);
5273 IWL_DEBUG_MAC80211("leave\n");
5274 mutex_unlock(&priv
->mutex
);
5279 static void iwl4965_configure_filter(struct ieee80211_hw
*hw
,
5280 unsigned int changed_flags
,
5281 unsigned int *total_flags
,
5282 int mc_count
, struct dev_addr_list
*mc_list
)
5286 * see also iwl4965_connection_init_rx_config
5288 struct iwl_priv
*priv
= hw
->priv
;
5290 if (changed_flags
& (FIF_PROMISC_IN_BSS
| FIF_OTHER_BSS
)) {
5291 if (*total_flags
& (FIF_PROMISC_IN_BSS
| FIF_OTHER_BSS
)) {
5292 IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n",
5293 IEEE80211_IF_TYPE_MNTR
,
5294 changed_flags
, *total_flags
);
5295 /* queue work 'cuz mac80211 is holding a lock which
5296 * prevents us from issuing (synchronous) f/w cmds */
5297 queue_work(priv
->workqueue
, &priv
->set_monitor
);
5298 new_flags
&= FIF_PROMISC_IN_BSS
|
5303 *total_flags
= new_flags
;
5306 static void iwl4965_mac_remove_interface(struct ieee80211_hw
*hw
,
5307 struct ieee80211_if_init_conf
*conf
)
5309 struct iwl_priv
*priv
= hw
->priv
;
5311 IWL_DEBUG_MAC80211("enter\n");
5313 mutex_lock(&priv
->mutex
);
5315 if (iwl_is_ready_rf(priv
)) {
5316 iwl4965_scan_cancel_timeout(priv
, 100);
5317 cancel_delayed_work(&priv
->post_associate
);
5318 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5319 iwl4965_commit_rxon(priv
);
5321 if (priv
->vif
== conf
->vif
) {
5323 memset(priv
->bssid
, 0, ETH_ALEN
);
5324 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
5325 priv
->essid_len
= 0;
5327 mutex_unlock(&priv
->mutex
);
5329 IWL_DEBUG_MAC80211("leave\n");
5333 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
5334 static void iwl4965_bss_info_changed(struct ieee80211_hw
*hw
,
5335 struct ieee80211_vif
*vif
,
5336 struct ieee80211_bss_conf
*bss_conf
,
5339 struct iwl_priv
*priv
= hw
->priv
;
5341 IWL_DEBUG_MAC80211("changes = 0x%X\n", changes
);
5343 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
5344 IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
5345 bss_conf
->use_short_preamble
);
5346 if (bss_conf
->use_short_preamble
)
5347 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
5349 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
5352 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
5353 IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf
->use_cts_prot
);
5354 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
5355 priv
->staging_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
5357 priv
->staging_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
5360 if (changes
& BSS_CHANGED_HT
) {
5361 IWL_DEBUG_MAC80211("HT %d\n", bss_conf
->assoc_ht
);
5362 iwl4965_ht_conf(priv
, bss_conf
);
5363 iwl_set_rxon_chain(priv
);
5366 if (changes
& BSS_CHANGED_ASSOC
) {
5367 IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf
->assoc
);
5368 /* This should never happen as this function should
5369 * never be called from interrupt context. */
5370 if (WARN_ON_ONCE(in_interrupt()))
5372 if (bss_conf
->assoc
) {
5373 priv
->assoc_id
= bss_conf
->aid
;
5374 priv
->beacon_int
= bss_conf
->beacon_int
;
5375 priv
->timestamp
= bss_conf
->timestamp
;
5376 priv
->assoc_capability
= bss_conf
->assoc_capability
;
5377 priv
->next_scan_jiffies
= jiffies
+
5378 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC
;
5379 mutex_lock(&priv
->mutex
);
5380 iwl4965_post_associate(priv
);
5381 mutex_unlock(&priv
->mutex
);
5384 IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf
->assoc
);
5386 } else if (changes
&& iwl_is_associated(priv
) && priv
->assoc_id
) {
5387 IWL_DEBUG_MAC80211("Associated Changes %d\n", changes
);
5388 iwl_send_rxon_assoc(priv
);
5393 static int iwl4965_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
5396 unsigned long flags
;
5397 struct iwl_priv
*priv
= hw
->priv
;
5399 IWL_DEBUG_MAC80211("enter\n");
5401 mutex_lock(&priv
->mutex
);
5402 spin_lock_irqsave(&priv
->lock
, flags
);
5404 if (!iwl_is_ready_rf(priv
)) {
5406 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
5410 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
5412 IWL_ERROR("ERROR: APs don't scan\n");
5416 /* we don't schedule scan within next_scan_jiffies period */
5417 if (priv
->next_scan_jiffies
&&
5418 time_after(priv
->next_scan_jiffies
, jiffies
)) {
5422 /* if we just finished scan ask for delay */
5423 if (priv
->last_scan_jiffies
&& time_after(priv
->last_scan_jiffies
+
5424 IWL_DELAY_NEXT_SCAN
, jiffies
)) {
5429 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
5430 iwl4965_escape_essid(ssid
, len
), (int)len
);
5432 priv
->one_direct_scan
= 1;
5433 priv
->direct_ssid_len
= (u8
)
5434 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
5435 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
5437 priv
->one_direct_scan
= 0;
5439 rc
= iwl4965_scan_initiate(priv
);
5441 IWL_DEBUG_MAC80211("leave\n");
5444 spin_unlock_irqrestore(&priv
->lock
, flags
);
5445 mutex_unlock(&priv
->mutex
);
5450 static void iwl4965_mac_update_tkip_key(struct ieee80211_hw
*hw
,
5451 struct ieee80211_key_conf
*keyconf
, const u8
*addr
,
5452 u32 iv32
, u16
*phase1key
)
5454 struct iwl_priv
*priv
= hw
->priv
;
5455 u8 sta_id
= IWL_INVALID_STATION
;
5456 unsigned long flags
;
5457 __le16 key_flags
= 0;
5459 DECLARE_MAC_BUF(mac
);
5461 IWL_DEBUG_MAC80211("enter\n");
5463 sta_id
= iwl_find_station(priv
, addr
);
5464 if (sta_id
== IWL_INVALID_STATION
) {
5465 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
5466 print_mac(mac
, addr
));
5470 iwl4965_scan_cancel_timeout(priv
, 100);
5472 key_flags
|= (STA_KEY_FLG_TKIP
| STA_KEY_FLG_MAP_KEY_MSK
);
5473 key_flags
|= cpu_to_le16(keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
5474 key_flags
&= ~STA_KEY_FLG_INVALID
;
5476 if (sta_id
== priv
->hw_params
.bcast_sta_id
)
5477 key_flags
|= STA_KEY_MULTICAST_MSK
;
5479 spin_lock_irqsave(&priv
->sta_lock
, flags
);
5481 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
5482 priv
->stations
[sta_id
].sta
.key
.tkip_rx_tsc_byte2
= (u8
) iv32
;
5484 for (i
= 0; i
< 5; i
++)
5485 priv
->stations
[sta_id
].sta
.key
.tkip_rx_ttak
[i
] =
5486 cpu_to_le16(phase1key
[i
]);
5488 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
5489 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
5491 iwl_send_add_sta(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
5493 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
5495 IWL_DEBUG_MAC80211("leave\n");
5498 static int iwl4965_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
5499 const u8
*local_addr
, const u8
*addr
,
5500 struct ieee80211_key_conf
*key
)
5502 struct iwl_priv
*priv
= hw
->priv
;
5503 DECLARE_MAC_BUF(mac
);
5505 u8 sta_id
= IWL_INVALID_STATION
;
5506 u8 is_default_wep_key
= 0;
5508 IWL_DEBUG_MAC80211("enter\n");
5510 if (priv
->hw_params
.sw_crypto
) {
5511 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
5515 if (is_zero_ether_addr(addr
))
5516 /* only support pairwise keys */
5519 sta_id
= iwl_find_station(priv
, addr
);
5520 if (sta_id
== IWL_INVALID_STATION
) {
5521 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
5522 print_mac(mac
, addr
));
5527 mutex_lock(&priv
->mutex
);
5528 iwl4965_scan_cancel_timeout(priv
, 100);
5529 mutex_unlock(&priv
->mutex
);
5531 /* If we are getting WEP group key and we didn't receive any key mapping
5532 * so far, we are in legacy wep mode (group key only), otherwise we are
5534 * In legacy wep mode, we use another host command to the uCode */
5535 if (key
->alg
== ALG_WEP
&& sta_id
== priv
->hw_params
.bcast_sta_id
&&
5536 priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
5538 is_default_wep_key
= !priv
->key_mapping_key
;
5540 is_default_wep_key
= priv
->default_wep_key
;
5545 if (is_default_wep_key
)
5546 ret
= iwl_set_default_wep_key(priv
, key
);
5548 ret
= iwl_set_dynamic_key(priv
, key
, sta_id
);
5550 IWL_DEBUG_MAC80211("enable hwcrypto key\n");
5553 if (is_default_wep_key
)
5554 ret
= iwl_remove_default_wep_key(priv
, key
);
5556 ret
= iwl_remove_dynamic_key(priv
, key
, sta_id
);
5558 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
5564 IWL_DEBUG_MAC80211("leave\n");
5569 static int iwl4965_mac_conf_tx(struct ieee80211_hw
*hw
, u16 queue
,
5570 const struct ieee80211_tx_queue_params
*params
)
5572 struct iwl_priv
*priv
= hw
->priv
;
5573 unsigned long flags
;
5576 IWL_DEBUG_MAC80211("enter\n");
5578 if (!iwl_is_ready_rf(priv
)) {
5579 IWL_DEBUG_MAC80211("leave - RF not ready\n");
5583 if (queue
>= AC_NUM
) {
5584 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
5588 if (!priv
->qos_data
.qos_enable
) {
5589 priv
->qos_data
.qos_active
= 0;
5590 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
5593 q
= AC_NUM
- 1 - queue
;
5595 spin_lock_irqsave(&priv
->lock
, flags
);
5597 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
5598 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
5599 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
5600 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
5601 cpu_to_le16((params
->txop
* 32));
5603 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
5604 priv
->qos_data
.qos_active
= 1;
5606 spin_unlock_irqrestore(&priv
->lock
, flags
);
5608 mutex_lock(&priv
->mutex
);
5609 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
5610 iwl4965_activate_qos(priv
, 1);
5611 else if (priv
->assoc_id
&& iwl_is_associated(priv
))
5612 iwl4965_activate_qos(priv
, 0);
5614 mutex_unlock(&priv
->mutex
);
5616 IWL_DEBUG_MAC80211("leave\n");
5620 static int iwl4965_mac_get_tx_stats(struct ieee80211_hw
*hw
,
5621 struct ieee80211_tx_queue_stats
*stats
)
5623 struct iwl_priv
*priv
= hw
->priv
;
5625 struct iwl_tx_queue
*txq
;
5626 struct iwl_queue
*q
;
5627 unsigned long flags
;
5629 IWL_DEBUG_MAC80211("enter\n");
5631 if (!iwl_is_ready_rf(priv
)) {
5632 IWL_DEBUG_MAC80211("leave - RF not ready\n");
5636 spin_lock_irqsave(&priv
->lock
, flags
);
5638 for (i
= 0; i
< AC_NUM
; i
++) {
5639 txq
= &priv
->txq
[i
];
5641 avail
= iwl_queue_space(q
);
5643 stats
[i
].len
= q
->n_window
- avail
;
5644 stats
[i
].limit
= q
->n_window
- q
->high_mark
;
5645 stats
[i
].count
= q
->n_window
;
5648 spin_unlock_irqrestore(&priv
->lock
, flags
);
5650 IWL_DEBUG_MAC80211("leave\n");
5655 static int iwl4965_mac_get_stats(struct ieee80211_hw
*hw
,
5656 struct ieee80211_low_level_stats
*stats
)
5658 struct iwl_priv
*priv
= hw
->priv
;
5661 IWL_DEBUG_MAC80211("enter\n");
5662 IWL_DEBUG_MAC80211("leave\n");
5667 static u64
iwl4965_mac_get_tsf(struct ieee80211_hw
*hw
)
5669 struct iwl_priv
*priv
;
5672 IWL_DEBUG_MAC80211("enter\n");
5673 IWL_DEBUG_MAC80211("leave\n");
5678 static void iwl4965_mac_reset_tsf(struct ieee80211_hw
*hw
)
5680 struct iwl_priv
*priv
= hw
->priv
;
5681 unsigned long flags
;
5683 mutex_lock(&priv
->mutex
);
5684 IWL_DEBUG_MAC80211("enter\n");
5686 priv
->lq_mngr
.lq_ready
= 0;
5687 #ifdef CONFIG_IWL4965_HT
5688 spin_lock_irqsave(&priv
->lock
, flags
);
5689 memset(&priv
->current_ht_config
, 0, sizeof(struct iwl_ht_info
));
5690 spin_unlock_irqrestore(&priv
->lock
, flags
);
5691 #endif /* CONFIG_IWL4965_HT */
5693 iwl_reset_qos(priv
);
5695 cancel_delayed_work(&priv
->post_associate
);
5697 spin_lock_irqsave(&priv
->lock
, flags
);
5699 priv
->assoc_capability
= 0;
5700 priv
->assoc_station_added
= 0;
5702 /* new association get rid of ibss beacon skb */
5703 if (priv
->ibss_beacon
)
5704 dev_kfree_skb(priv
->ibss_beacon
);
5706 priv
->ibss_beacon
= NULL
;
5708 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
5709 priv
->timestamp
= 0;
5710 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
5711 priv
->beacon_int
= 0;
5713 spin_unlock_irqrestore(&priv
->lock
, flags
);
5715 if (!iwl_is_ready_rf(priv
)) {
5716 IWL_DEBUG_MAC80211("leave - not ready\n");
5717 mutex_unlock(&priv
->mutex
);
5721 /* we are restarting association process
5722 * clear RXON_FILTER_ASSOC_MSK bit
5724 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
5725 iwl4965_scan_cancel_timeout(priv
, 100);
5726 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5727 iwl4965_commit_rxon(priv
);
5730 iwl_power_update_mode(priv
, 0);
5732 /* Per mac80211.h: This is only used in IBSS mode... */
5733 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
5735 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
5736 mutex_unlock(&priv
->mutex
);
5740 iwl4965_set_rate(priv
);
5742 mutex_unlock(&priv
->mutex
);
5744 IWL_DEBUG_MAC80211("leave\n");
5747 static int iwl4965_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
5748 struct ieee80211_tx_control
*control
)
5750 struct iwl_priv
*priv
= hw
->priv
;
5751 unsigned long flags
;
5753 mutex_lock(&priv
->mutex
);
5754 IWL_DEBUG_MAC80211("enter\n");
5756 if (!iwl_is_ready_rf(priv
)) {
5757 IWL_DEBUG_MAC80211("leave - RF not ready\n");
5758 mutex_unlock(&priv
->mutex
);
5762 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
5763 IWL_DEBUG_MAC80211("leave - not IBSS\n");
5764 mutex_unlock(&priv
->mutex
);
5768 spin_lock_irqsave(&priv
->lock
, flags
);
5770 if (priv
->ibss_beacon
)
5771 dev_kfree_skb(priv
->ibss_beacon
);
5773 priv
->ibss_beacon
= skb
;
5777 IWL_DEBUG_MAC80211("leave\n");
5778 spin_unlock_irqrestore(&priv
->lock
, flags
);
5780 iwl_reset_qos(priv
);
5782 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
5784 mutex_unlock(&priv
->mutex
);
5789 /*****************************************************************************
5793 *****************************************************************************/
5795 #ifdef CONFIG_IWLWIFI_DEBUG
5798 * The following adds a new attribute to the sysfs representation
5799 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
5800 * used for controlling the debug level.
5802 * See the level definitions in iwl for details.
5805 static ssize_t
show_debug_level(struct device
*d
,
5806 struct device_attribute
*attr
, char *buf
)
5808 struct iwl_priv
*priv
= d
->driver_data
;
5810 return sprintf(buf
, "0x%08X\n", priv
->debug_level
);
5812 static ssize_t
store_debug_level(struct device
*d
,
5813 struct device_attribute
*attr
,
5814 const char *buf
, size_t count
)
5816 struct iwl_priv
*priv
= d
->driver_data
;
5817 char *p
= (char *)buf
;
5820 val
= simple_strtoul(p
, &p
, 0);
5822 printk(KERN_INFO DRV_NAME
5823 ": %s is not in hex or decimal form.\n", buf
);
5825 priv
->debug_level
= val
;
5827 return strnlen(buf
, count
);
5830 static DEVICE_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
5831 show_debug_level
, store_debug_level
);
5834 #endif /* CONFIG_IWLWIFI_DEBUG */
5837 static ssize_t
show_version(struct device
*d
,
5838 struct device_attribute
*attr
, char *buf
)
5840 struct iwl_priv
*priv
= d
->driver_data
;
5841 struct iwl4965_alive_resp
*palive
= &priv
->card_alive
;
5843 if (palive
->is_valid
)
5844 return sprintf(buf
, "fw version: 0x%01X.0x%01X.0x%01X.0x%01X\n"
5845 "fw type: 0x%01X 0x%01X\n",
5846 palive
->ucode_major
, palive
->ucode_minor
,
5847 palive
->sw_rev
[0], palive
->sw_rev
[1],
5848 palive
->ver_type
, palive
->ver_subtype
);
5851 return sprintf(buf
, "fw not loaded\n");
5854 static DEVICE_ATTR(version
, S_IWUSR
| S_IRUGO
, show_version
, NULL
);
5856 static ssize_t
show_temperature(struct device
*d
,
5857 struct device_attribute
*attr
, char *buf
)
5859 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5861 if (!iwl_is_alive(priv
))
5864 return sprintf(buf
, "%d\n", iwl4965_hw_get_temperature(priv
));
5867 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
5869 static ssize_t
show_rs_window(struct device
*d
,
5870 struct device_attribute
*attr
,
5873 struct iwl_priv
*priv
= d
->driver_data
;
5874 return iwl4965_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
5876 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
5878 static ssize_t
show_tx_power(struct device
*d
,
5879 struct device_attribute
*attr
, char *buf
)
5881 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5882 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
5885 static ssize_t
store_tx_power(struct device
*d
,
5886 struct device_attribute
*attr
,
5887 const char *buf
, size_t count
)
5889 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5890 char *p
= (char *)buf
;
5893 val
= simple_strtoul(p
, &p
, 10);
5895 printk(KERN_INFO DRV_NAME
5896 ": %s is not in decimal form.\n", buf
);
5898 iwl4965_hw_reg_set_txpower(priv
, val
);
5903 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
5905 static ssize_t
show_flags(struct device
*d
,
5906 struct device_attribute
*attr
, char *buf
)
5908 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5910 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
5913 static ssize_t
store_flags(struct device
*d
,
5914 struct device_attribute
*attr
,
5915 const char *buf
, size_t count
)
5917 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5918 u32 flags
= simple_strtoul(buf
, NULL
, 0);
5920 mutex_lock(&priv
->mutex
);
5921 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
5922 /* Cancel any currently running scans... */
5923 if (iwl4965_scan_cancel_timeout(priv
, 100))
5924 IWL_WARNING("Could not cancel scan.\n");
5926 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
5928 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
5929 iwl4965_commit_rxon(priv
);
5932 mutex_unlock(&priv
->mutex
);
5937 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
5939 static ssize_t
show_filter_flags(struct device
*d
,
5940 struct device_attribute
*attr
, char *buf
)
5942 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5944 return sprintf(buf
, "0x%04X\n",
5945 le32_to_cpu(priv
->active_rxon
.filter_flags
));
5948 static ssize_t
store_filter_flags(struct device
*d
,
5949 struct device_attribute
*attr
,
5950 const char *buf
, size_t count
)
5952 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
5953 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
5955 mutex_lock(&priv
->mutex
);
5956 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
5957 /* Cancel any currently running scans... */
5958 if (iwl4965_scan_cancel_timeout(priv
, 100))
5959 IWL_WARNING("Could not cancel scan.\n");
5961 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
5962 "0x%04X\n", filter_flags
);
5963 priv
->staging_rxon
.filter_flags
=
5964 cpu_to_le32(filter_flags
);
5965 iwl4965_commit_rxon(priv
);
5968 mutex_unlock(&priv
->mutex
);
5973 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
5974 store_filter_flags
);
5976 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
5978 static ssize_t
show_measurement(struct device
*d
,
5979 struct device_attribute
*attr
, char *buf
)
5981 struct iwl_priv
*priv
= dev_get_drvdata(d
);
5982 struct iwl4965_spectrum_notification measure_report
;
5983 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
5984 u8
*data
= (u8
*) & measure_report
;
5985 unsigned long flags
;
5987 spin_lock_irqsave(&priv
->lock
, flags
);
5988 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
5989 spin_unlock_irqrestore(&priv
->lock
, flags
);
5992 memcpy(&measure_report
, &priv
->measure_report
, size
);
5993 priv
->measurement_status
= 0;
5994 spin_unlock_irqrestore(&priv
->lock
, flags
);
5996 while (size
&& (PAGE_SIZE
- len
)) {
5997 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
5998 PAGE_SIZE
- len
, 1);
6000 if (PAGE_SIZE
- len
)
6004 size
-= min(size
, 16U);
6010 static ssize_t
store_measurement(struct device
*d
,
6011 struct device_attribute
*attr
,
6012 const char *buf
, size_t count
)
6014 struct iwl_priv
*priv
= dev_get_drvdata(d
);
6015 struct ieee80211_measurement_params params
= {
6016 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
6017 .start_time
= cpu_to_le64(priv
->last_tsf
),
6018 .duration
= cpu_to_le16(1),
6020 u8 type
= IWL_MEASURE_BASIC
;
6026 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
6027 channel
= simple_strtoul(p
, NULL
, 0);
6029 params
.channel
= channel
;
6032 while (*p
&& *p
!= ' ')
6035 type
= simple_strtoul(p
+ 1, NULL
, 0);
6038 IWL_DEBUG_INFO("Invoking measurement of type %d on "
6039 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
6040 iwl4965_get_measurement(priv
, ¶ms
, type
);
6045 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
6046 show_measurement
, store_measurement
);
6047 #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
6049 static ssize_t
store_retry_rate(struct device
*d
,
6050 struct device_attribute
*attr
,
6051 const char *buf
, size_t count
)
6053 struct iwl_priv
*priv
= dev_get_drvdata(d
);
6055 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
6056 if (priv
->retry_rate
<= 0)
6057 priv
->retry_rate
= 1;
6062 static ssize_t
show_retry_rate(struct device
*d
,
6063 struct device_attribute
*attr
, char *buf
)
6065 struct iwl_priv
*priv
= dev_get_drvdata(d
);
6066 return sprintf(buf
, "%d", priv
->retry_rate
);
6069 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
6072 static ssize_t
store_power_level(struct device
*d
,
6073 struct device_attribute
*attr
,
6074 const char *buf
, size_t count
)
6076 struct iwl_priv
*priv
= dev_get_drvdata(d
);
6080 mode
= simple_strtoul(buf
, NULL
, 0);
6081 mutex_lock(&priv
->mutex
);
6083 if (!iwl_is_ready(priv
)) {
6088 rc
= iwl_power_set_user_mode(priv
, mode
);
6090 IWL_DEBUG_MAC80211("failed setting power mode.\n");
6096 mutex_unlock(&priv
->mutex
);
6100 #define MAX_WX_STRING 80
6102 /* Values are in microsecond */
6103 static const s32 timeout_duration
[] = {
6110 static const s32 period_duration
[] = {
6118 static ssize_t
show_power_level(struct device
*d
,
6119 struct device_attribute
*attr
, char *buf
)
6121 struct iwl_priv
*priv
= dev_get_drvdata(d
);
6122 int level
= priv
->power_data
.power_mode
;
6125 p
+= sprintf(p
, "%d ", level
);
6127 case IWL_POWER_MODE_CAM
:
6129 p
+= sprintf(p
, "(AC)");
6131 case IWL_POWER_BATTERY
:
6132 p
+= sprintf(p
, "(BATTERY)");
6136 "(Timeout %dms, Period %dms)",
6137 timeout_duration
[level
- 1] / 1000,
6138 period_duration
[level
- 1] / 1000);
6141 if (!(priv->power_mode & IWL_POWER_ENABLED))
6142 p += sprintf(p, " OFF\n");
6144 p += sprintf(p, " \n");
6146 p
+= sprintf(p
, " \n");
6147 return (p
- buf
+ 1);
6150 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
6153 static ssize_t
show_channels(struct device
*d
,
6154 struct device_attribute
*attr
, char *buf
)
6156 /* all this shit doesn't belong into sysfs anyway */
6160 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
6162 static ssize_t
show_statistics(struct device
*d
,
6163 struct device_attribute
*attr
, char *buf
)
6165 struct iwl_priv
*priv
= dev_get_drvdata(d
);
6166 u32 size
= sizeof(struct iwl4965_notif_statistics
);
6167 u32 len
= 0, ofs
= 0;
6168 u8
*data
= (u8
*) & priv
->statistics
;
6171 if (!iwl_is_alive(priv
))
6174 mutex_lock(&priv
->mutex
);
6175 rc
= iwl_send_statistics_request(priv
, 0);
6176 mutex_unlock(&priv
->mutex
);
6180 "Error sending statistics request: 0x%08X\n", rc
);
6184 while (size
&& (PAGE_SIZE
- len
)) {
6185 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
6186 PAGE_SIZE
- len
, 1);
6188 if (PAGE_SIZE
- len
)
6192 size
-= min(size
, 16U);
6198 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
6200 static ssize_t
show_status(struct device
*d
,
6201 struct device_attribute
*attr
, char *buf
)
6203 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
6204 if (!iwl_is_alive(priv
))
6206 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
6209 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
6211 static ssize_t
dump_error_log(struct device
*d
,
6212 struct device_attribute
*attr
,
6213 const char *buf
, size_t count
)
6215 char *p
= (char *)buf
;
6218 iwl4965_dump_nic_error_log((struct iwl_priv
*)d
->driver_data
);
6220 return strnlen(buf
, count
);
6223 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
6225 static ssize_t
dump_event_log(struct device
*d
,
6226 struct device_attribute
*attr
,
6227 const char *buf
, size_t count
)
6229 char *p
= (char *)buf
;
6232 iwl4965_dump_nic_event_log((struct iwl_priv
*)d
->driver_data
);
6234 return strnlen(buf
, count
);
6237 static DEVICE_ATTR(dump_events
, S_IWUSR
, NULL
, dump_event_log
);
6239 /*****************************************************************************
6241 * driver setup and teardown
6243 *****************************************************************************/
6245 static void iwl4965_setup_deferred_work(struct iwl_priv
*priv
)
6247 priv
->workqueue
= create_workqueue(DRV_NAME
);
6249 init_waitqueue_head(&priv
->wait_command_queue
);
6251 INIT_WORK(&priv
->up
, iwl4965_bg_up
);
6252 INIT_WORK(&priv
->restart
, iwl4965_bg_restart
);
6253 INIT_WORK(&priv
->rx_replenish
, iwl4965_bg_rx_replenish
);
6254 INIT_WORK(&priv
->scan_completed
, iwl4965_bg_scan_completed
);
6255 INIT_WORK(&priv
->request_scan
, iwl4965_bg_request_scan
);
6256 INIT_WORK(&priv
->abort_scan
, iwl4965_bg_abort_scan
);
6257 INIT_WORK(&priv
->rf_kill
, iwl4965_bg_rf_kill
);
6258 INIT_WORK(&priv
->beacon_update
, iwl4965_bg_beacon_update
);
6259 INIT_WORK(&priv
->set_monitor
, iwl4965_bg_set_monitor
);
6260 INIT_DELAYED_WORK(&priv
->post_associate
, iwl4965_bg_post_associate
);
6261 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl4965_bg_init_alive_start
);
6262 INIT_DELAYED_WORK(&priv
->alive_start
, iwl4965_bg_alive_start
);
6263 INIT_DELAYED_WORK(&priv
->scan_check
, iwl4965_bg_scan_check
);
6265 iwl4965_hw_setup_deferred_work(priv
);
6267 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
6268 iwl4965_irq_tasklet
, (unsigned long)priv
);
6271 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
)
6273 iwl4965_hw_cancel_deferred_work(priv
);
6275 cancel_delayed_work_sync(&priv
->init_alive_start
);
6276 cancel_delayed_work(&priv
->scan_check
);
6277 cancel_delayed_work(&priv
->alive_start
);
6278 cancel_delayed_work(&priv
->post_associate
);
6279 cancel_work_sync(&priv
->beacon_update
);
6282 static struct attribute
*iwl4965_sysfs_entries
[] = {
6283 &dev_attr_channels
.attr
,
6284 &dev_attr_dump_errors
.attr
,
6285 &dev_attr_dump_events
.attr
,
6286 &dev_attr_flags
.attr
,
6287 &dev_attr_filter_flags
.attr
,
6288 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
6289 &dev_attr_measurement
.attr
,
6291 &dev_attr_power_level
.attr
,
6292 &dev_attr_retry_rate
.attr
,
6293 &dev_attr_rs_window
.attr
,
6294 &dev_attr_statistics
.attr
,
6295 &dev_attr_status
.attr
,
6296 &dev_attr_temperature
.attr
,
6297 &dev_attr_tx_power
.attr
,
6298 #ifdef CONFIG_IWLWIFI_DEBUG
6299 &dev_attr_debug_level
.attr
,
6301 &dev_attr_version
.attr
,
6306 static struct attribute_group iwl4965_attribute_group
= {
6307 .name
= NULL
, /* put in device directory */
6308 .attrs
= iwl4965_sysfs_entries
,
6311 static struct ieee80211_ops iwl4965_hw_ops
= {
6312 .tx
= iwl4965_mac_tx
,
6313 .start
= iwl4965_mac_start
,
6314 .stop
= iwl4965_mac_stop
,
6315 .add_interface
= iwl4965_mac_add_interface
,
6316 .remove_interface
= iwl4965_mac_remove_interface
,
6317 .config
= iwl4965_mac_config
,
6318 .config_interface
= iwl4965_mac_config_interface
,
6319 .configure_filter
= iwl4965_configure_filter
,
6320 .set_key
= iwl4965_mac_set_key
,
6321 .update_tkip_key
= iwl4965_mac_update_tkip_key
,
6322 .get_stats
= iwl4965_mac_get_stats
,
6323 .get_tx_stats
= iwl4965_mac_get_tx_stats
,
6324 .conf_tx
= iwl4965_mac_conf_tx
,
6325 .get_tsf
= iwl4965_mac_get_tsf
,
6326 .reset_tsf
= iwl4965_mac_reset_tsf
,
6327 .beacon_update
= iwl4965_mac_beacon_update
,
6328 .bss_info_changed
= iwl4965_bss_info_changed
,
6329 #ifdef CONFIG_IWL4965_HT
6330 .ampdu_action
= iwl4965_mac_ampdu_action
,
6331 #endif /* CONFIG_IWL4965_HT */
6332 .hw_scan
= iwl4965_mac_hw_scan
6335 static int iwl4965_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
6338 struct iwl_priv
*priv
;
6339 struct ieee80211_hw
*hw
;
6340 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
6341 unsigned long flags
;
6342 DECLARE_MAC_BUF(mac
);
6344 /************************
6345 * 1. Allocating HW data
6346 ************************/
6348 /* Disabling hardware scan means that mac80211 will perform scans
6349 * "the hard way", rather than using device's scan. */
6350 if (cfg
->mod_params
->disable_hw_scan
) {
6351 if (cfg
->mod_params
->debug
& IWL_DL_INFO
)
6352 dev_printk(KERN_DEBUG
, &(pdev
->dev
),
6353 "Disabling hw_scan\n");
6354 iwl4965_hw_ops
.hw_scan
= NULL
;
6357 hw
= iwl_alloc_all(cfg
, &iwl4965_hw_ops
);
6363 /* At this point both hw and priv are allocated. */
6365 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
6367 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
6369 priv
->pci_dev
= pdev
;
6371 #ifdef CONFIG_IWLWIFI_DEBUG
6372 priv
->debug_level
= priv
->cfg
->mod_params
->debug
;
6373 atomic_set(&priv
->restrict_refcnt
, 0);
6376 /**************************
6377 * 2. Initializing PCI bus
6378 **************************/
6379 if (pci_enable_device(pdev
)) {
6381 goto out_ieee80211_free_hw
;
6384 pci_set_master(pdev
);
6386 err
= pci_set_dma_mask(pdev
, DMA_64BIT_MASK
);
6388 err
= pci_set_consistent_dma_mask(pdev
, DMA_64BIT_MASK
);
6390 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
6392 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
6393 /* both attempts failed: */
6395 printk(KERN_WARNING
"%s: No suitable DMA available.\n",
6397 goto out_pci_disable_device
;
6401 err
= pci_request_regions(pdev
, DRV_NAME
);
6403 goto out_pci_disable_device
;
6405 pci_set_drvdata(pdev
, priv
);
6407 /* We disable the RETRY_TIMEOUT register (0x41) to keep
6408 * PCI Tx retries from interfering with C3 CPU state */
6409 pci_write_config_byte(pdev
, 0x41, 0x00);
6411 /***********************
6412 * 3. Read REV register
6413 ***********************/
6414 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
6415 if (!priv
->hw_base
) {
6417 goto out_pci_release_regions
;
6420 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
6421 (unsigned long long) pci_resource_len(pdev
, 0));
6422 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
6424 iwl_hw_detect(priv
);
6425 printk(KERN_INFO DRV_NAME
6426 ": Detected Intel Wireless WiFi Link %s REV=0x%X\n",
6427 priv
->cfg
->name
, priv
->hw_rev
);
6430 err
= priv
->cfg
->ops
->lib
->apm_ops
.init(priv
);
6432 IWL_DEBUG_INFO("Failed to init APMG\n");
6438 /* Read the EEPROM */
6439 err
= iwl_eeprom_init(priv
);
6441 IWL_ERROR("Unable to init EEPROM\n");
6444 err
= iwl_eeprom_check_version(priv
);
6448 /* extract MAC Address */
6449 iwl_eeprom_get_mac(priv
, priv
->mac_addr
);
6450 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac
, priv
->mac_addr
));
6451 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
6453 /************************
6454 * 5. Setup HW constants
6455 ************************/
6456 /* Device-specific setup */
6457 if (priv
->cfg
->ops
->lib
->set_hw_params(priv
)) {
6458 IWL_ERROR("failed to set hw parameters\n");
6459 goto out_free_eeprom
;
6462 /*******************
6464 *******************/
6466 err
= iwl_setup(priv
);
6468 goto out_free_eeprom
;
6469 /* At this point both hw and priv are initialized. */
6471 /**********************************
6472 * 7. Initialize module parameters
6473 **********************************/
6475 /* Disable radio (SW RF KILL) via parameter when loading driver */
6476 if (priv
->cfg
->mod_params
->disable
) {
6477 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
6478 IWL_DEBUG_INFO("Radio disabled.\n");
6481 if (priv
->cfg
->mod_params
->enable_qos
)
6482 priv
->qos_data
.qos_enable
= 1;
6484 /********************
6486 ********************/
6487 spin_lock_irqsave(&priv
->lock
, flags
);
6488 iwl4965_disable_interrupts(priv
);
6489 spin_unlock_irqrestore(&priv
->lock
, flags
);
6491 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
6493 IWL_ERROR("failed to create sysfs device attributes\n");
6494 goto out_free_eeprom
;
6497 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
6499 IWL_ERROR("failed to create debugfs files\n");
6500 goto out_remove_sysfs
;
6503 iwl4965_setup_deferred_work(priv
);
6504 iwl4965_setup_rx_handlers(priv
);
6506 /********************
6508 ********************/
6509 pci_save_state(pdev
);
6510 pci_disable_device(pdev
);
6512 /* notify iwlcore to init */
6513 iwlcore_low_level_notify(priv
, IWLCORE_INIT_EVT
);
6517 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
6519 iwl_eeprom_free(priv
);
6521 pci_iounmap(pdev
, priv
->hw_base
);
6522 out_pci_release_regions
:
6523 pci_release_regions(pdev
);
6524 pci_set_drvdata(pdev
, NULL
);
6525 out_pci_disable_device
:
6526 pci_disable_device(pdev
);
6527 out_ieee80211_free_hw
:
6528 ieee80211_free_hw(priv
->hw
);
6533 static void __devexit
iwl4965_pci_remove(struct pci_dev
*pdev
)
6535 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
6536 struct list_head
*p
, *q
;
6538 unsigned long flags
;
6543 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
6545 if (priv
->mac80211_registered
) {
6546 ieee80211_unregister_hw(priv
->hw
);
6547 priv
->mac80211_registered
= 0;
6550 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6554 /* make sure we flush any pending irq or
6555 * tasklet for the driver
6557 spin_lock_irqsave(&priv
->lock
, flags
);
6558 iwl4965_disable_interrupts(priv
);
6559 spin_unlock_irqrestore(&priv
->lock
, flags
);
6561 iwl_synchronize_irq(priv
);
6563 /* Free MAC hash list for ADHOC */
6564 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++) {
6565 list_for_each_safe(p
, q
, &priv
->ibss_mac_hash
[i
]) {
6567 kfree(list_entry(p
, struct iwl4965_ibss_seq
, list
));
6571 iwlcore_low_level_notify(priv
, IWLCORE_REMOVE_EVT
);
6572 iwl_dbgfs_unregister(priv
);
6573 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
6575 iwl4965_dealloc_ucode_pci(priv
);
6578 iwl_rx_queue_free(priv
, &priv
->rxq
);
6579 iwl_hw_txq_ctx_free(priv
);
6581 iwlcore_clear_stations_table(priv
);
6582 iwl_eeprom_free(priv
);
6585 /*netif_stop_queue(dev); */
6586 flush_workqueue(priv
->workqueue
);
6588 /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
6589 * priv->workqueue... so we can't take down the workqueue
6591 destroy_workqueue(priv
->workqueue
);
6592 priv
->workqueue
= NULL
;
6594 pci_iounmap(pdev
, priv
->hw_base
);
6595 pci_release_regions(pdev
);
6596 pci_disable_device(pdev
);
6597 pci_set_drvdata(pdev
, NULL
);
6599 iwl_free_channel_map(priv
);
6600 iwlcore_free_geos(priv
);
6602 if (priv
->ibss_beacon
)
6603 dev_kfree_skb(priv
->ibss_beacon
);
6605 ieee80211_free_hw(priv
->hw
);
6610 static int iwl4965_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
6612 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
6614 if (priv
->is_open
) {
6615 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
6616 iwl4965_mac_stop(priv
->hw
);
6620 pci_set_power_state(pdev
, PCI_D3hot
);
6625 static int iwl4965_pci_resume(struct pci_dev
*pdev
)
6627 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
6629 pci_set_power_state(pdev
, PCI_D0
);
6632 iwl4965_mac_start(priv
->hw
);
6634 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
6638 #endif /* CONFIG_PM */
6640 /*****************************************************************************
6642 * driver and module entry point
6644 *****************************************************************************/
6646 /* Hardware specific file defines the PCI IDs table for that hardware module */
6647 static struct pci_device_id iwl_hw_card_ids
[] = {
6648 {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID
, iwl4965_agn_cfg
)},
6649 {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID
, iwl4965_agn_cfg
)},
6650 #ifdef CONFIG_IWL5000
6651 {IWL_PCI_DEVICE(0x4235, PCI_ANY_ID
, iwl5300_agn_cfg
)},
6652 {IWL_PCI_DEVICE(0x4232, PCI_ANY_ID
, iwl5100_agn_cfg
)},
6653 {IWL_PCI_DEVICE(0x423A, PCI_ANY_ID
, iwl5350_agn_cfg
)},
6654 #endif /* CONFIG_IWL5000 */
6657 MODULE_DEVICE_TABLE(pci
, iwl_hw_card_ids
);
6659 static struct pci_driver iwl_driver
= {
6661 .id_table
= iwl_hw_card_ids
,
6662 .probe
= iwl4965_pci_probe
,
6663 .remove
= __devexit_p(iwl4965_pci_remove
),
6665 .suspend
= iwl4965_pci_suspend
,
6666 .resume
= iwl4965_pci_resume
,
6670 static int __init
iwl4965_init(void)
6674 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
6675 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
6677 ret
= iwl4965_rate_control_register();
6679 IWL_ERROR("Unable to register rate control algorithm: %d\n", ret
);
6683 ret
= pci_register_driver(&iwl_driver
);
6685 IWL_ERROR("Unable to initialize PCI module\n");
6686 goto error_register
;
6692 iwl4965_rate_control_unregister();
6696 static void __exit
iwl4965_exit(void)
6698 pci_unregister_driver(&iwl_driver
);
6699 iwl4965_rate_control_unregister();
6702 module_exit(iwl4965_exit
);
6703 module_init(iwl4965_init
);