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"
55 static int iwl4965_tx_queue_update_write_ptr(struct iwl_priv
*priv
,
56 struct iwl4965_tx_queue
*txq
);
58 /******************************************************************************
62 ******************************************************************************/
65 * module name, copyright, version, etc.
66 * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
69 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link 4965AGN driver for Linux"
71 #ifdef CONFIG_IWLWIFI_DEBUG
77 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
83 #define DRV_VERSION IWLWIFI_VERSION VD VS
86 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
87 MODULE_VERSION(DRV_VERSION
);
88 MODULE_AUTHOR(DRV_COPYRIGHT
);
89 MODULE_LICENSE("GPL");
91 __le16
*ieee80211_get_qos_ctrl(struct ieee80211_hdr
*hdr
)
93 u16 fc
= le16_to_cpu(hdr
->frame_control
);
94 int hdr_len
= ieee80211_get_hdrlen(fc
);
96 if ((fc
& 0x00cc) == (IEEE80211_STYPE_QOS_DATA
| IEEE80211_FTYPE_DATA
))
97 return (__le16
*) ((u8
*) hdr
+ hdr_len
- QOS_CONTROL_LEN
);
101 static const struct ieee80211_supported_band
*iwl4965_get_hw_mode(
102 struct iwl_priv
*priv
, enum ieee80211_band band
)
104 return priv
->hw
->wiphy
->bands
[band
];
107 static int iwl4965_is_empty_essid(const char *essid
, int essid_len
)
109 /* Single white space is for Linksys APs */
110 if (essid_len
== 1 && essid
[0] == ' ')
113 /* Otherwise, if the entire essid is 0, we assume it is hidden */
116 if (essid
[essid_len
] != '\0')
123 static const char *iwl4965_escape_essid(const char *essid
, u8 essid_len
)
125 static char escaped
[IW_ESSID_MAX_SIZE
* 2 + 1];
126 const char *s
= essid
;
129 if (iwl4965_is_empty_essid(essid
, essid_len
)) {
130 memcpy(escaped
, "<hidden>", sizeof("<hidden>"));
134 essid_len
= min(essid_len
, (u8
) IW_ESSID_MAX_SIZE
);
135 while (essid_len
--) {
147 /*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
150 * Theory of operation
152 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
153 * of buffer descriptors, each of which points to one or more data buffers for
154 * the device to read from or fill. Driver and device exchange status of each
155 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
156 * entries in each circular buffer, to protect against confusing empty and full
159 * The device reads or writes the data in the queues via the device's several
160 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
162 * For Tx queue, there are low mark and high mark limits. If, after queuing
163 * the packet for Tx, free space become < low mark, Tx queue stopped. When
164 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
167 * The 4965 operates with up to 17 queues: One receive queue, one transmit
168 * queue (#4) for sending commands to the device firmware, and 15 other
169 * Tx queues that may be mapped to prioritized Tx DMA/FIFO channels.
171 * See more detailed info in iwl-4965-hw.h.
172 ***************************************************/
174 int iwl4965_queue_space(const struct iwl4965_queue
*q
)
176 int s
= q
->read_ptr
- q
->write_ptr
;
178 if (q
->read_ptr
> q
->write_ptr
)
183 /* keep some reserve to not confuse empty and full situations */
191 static inline int x2_queue_used(const struct iwl4965_queue
*q
, int i
)
193 return q
->write_ptr
> q
->read_ptr
?
194 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
195 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
198 static inline u8
get_cmd_index(struct iwl4965_queue
*q
, u32 index
, int is_huge
)
200 /* This is for scan command, the big buffer at end of command array */
202 return q
->n_window
; /* must be power of 2 */
204 /* Otherwise, use normal size buffers */
205 return index
& (q
->n_window
- 1);
209 * iwl4965_queue_init - Initialize queue's high/low-water and read/write indexes
211 static int iwl4965_queue_init(struct iwl_priv
*priv
, struct iwl4965_queue
*q
,
212 int count
, int slots_num
, u32 id
)
215 q
->n_window
= slots_num
;
218 /* count must be power-of-two size, otherwise iwl_queue_inc_wrap
219 * and iwl_queue_dec_wrap are broken. */
220 BUG_ON(!is_power_of_2(count
));
222 /* slots_num must be power-of-two size, otherwise
223 * get_cmd_index is broken. */
224 BUG_ON(!is_power_of_2(slots_num
));
226 q
->low_mark
= q
->n_window
/ 4;
230 q
->high_mark
= q
->n_window
/ 8;
231 if (q
->high_mark
< 2)
234 q
->write_ptr
= q
->read_ptr
= 0;
240 * iwl4965_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
242 static int iwl4965_tx_queue_alloc(struct iwl_priv
*priv
,
243 struct iwl4965_tx_queue
*txq
, u32 id
)
245 struct pci_dev
*dev
= priv
->pci_dev
;
247 /* Driver private data, only for Tx (not command) queues,
248 * not shared with device. */
249 if (id
!= IWL_CMD_QUEUE_NUM
) {
250 txq
->txb
= kmalloc(sizeof(txq
->txb
[0]) *
251 TFD_QUEUE_SIZE_MAX
, GFP_KERNEL
);
253 IWL_ERROR("kmalloc for auxiliary BD "
254 "structures failed\n");
260 /* Circular buffer of transmit frame descriptors (TFDs),
261 * shared with device */
262 txq
->bd
= pci_alloc_consistent(dev
,
263 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
,
267 IWL_ERROR("pci_alloc_consistent(%zd) failed\n",
268 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
);
285 * iwl4965_tx_queue_init - Allocate and initialize one tx/cmd queue
287 int iwl4965_tx_queue_init(struct iwl_priv
*priv
,
288 struct iwl4965_tx_queue
*txq
, int slots_num
, u32 txq_id
)
290 struct pci_dev
*dev
= priv
->pci_dev
;
295 * Alloc buffer array for commands (Tx or other types of commands).
296 * For the command queue (#4), allocate command space + one big
297 * command for scan, since scan command is very huge; the system will
298 * not have two scans at the same time, so only one is needed.
299 * For normal Tx queues (all other queues), no super-size command
302 len
= sizeof(struct iwl_cmd
) * slots_num
;
303 if (txq_id
== IWL_CMD_QUEUE_NUM
)
304 len
+= IWL_MAX_SCAN_SIZE
;
305 txq
->cmd
= pci_alloc_consistent(dev
, len
, &txq
->dma_addr_cmd
);
309 /* Alloc driver data array and TFD circular buffer */
310 rc
= iwl4965_tx_queue_alloc(priv
, txq
, txq_id
);
312 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
316 txq
->need_update
= 0;
318 /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
319 * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
320 BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX
& (TFD_QUEUE_SIZE_MAX
- 1));
322 /* Initialize queue's high/low-water marks, and head/tail indexes */
323 iwl4965_queue_init(priv
, &txq
->q
, TFD_QUEUE_SIZE_MAX
, slots_num
, txq_id
);
325 /* Tell device where to find queue */
326 iwl4965_hw_tx_queue_init(priv
, txq
);
332 * iwl4965_tx_queue_free - Deallocate DMA queue.
333 * @txq: Transmit queue to deallocate.
335 * Empty queue by removing and destroying all BD's.
337 * 0-fill, but do not free "txq" descriptor structure.
339 void iwl4965_tx_queue_free(struct iwl_priv
*priv
, struct iwl4965_tx_queue
*txq
)
341 struct iwl4965_queue
*q
= &txq
->q
;
342 struct pci_dev
*dev
= priv
->pci_dev
;
348 /* first, empty all BD's */
349 for (; q
->write_ptr
!= q
->read_ptr
;
350 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
))
351 iwl4965_hw_txq_free_tfd(priv
, txq
);
353 len
= sizeof(struct iwl_cmd
) * q
->n_window
;
354 if (q
->id
== IWL_CMD_QUEUE_NUM
)
355 len
+= IWL_MAX_SCAN_SIZE
;
357 /* De-alloc array of command/tx buffers */
358 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
360 /* De-alloc circular buffer of TFDs */
362 pci_free_consistent(dev
, sizeof(struct iwl4965_tfd_frame
) *
363 txq
->q
.n_bd
, txq
->bd
, txq
->q
.dma_addr
);
365 /* De-alloc array of per-TFD driver data */
371 /* 0-fill queue descriptor structure */
372 memset(txq
, 0, sizeof(*txq
));
375 const u8 iwl4965_broadcast_addr
[ETH_ALEN
] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
377 /*************** STATION TABLE MANAGEMENT ****
378 * mac80211 should be examined to determine if sta_info is duplicating
379 * the functionality provided here
382 /**************************************************************/
384 #if 0 /* temporary disable till we add real remove station */
386 * iwl4965_remove_station - Remove driver's knowledge of station.
388 * NOTE: This does not remove station from device's station table.
390 static u8
iwl4965_remove_station(struct iwl_priv
*priv
, const u8
*addr
, int is_ap
)
392 int index
= IWL_INVALID_STATION
;
396 spin_lock_irqsave(&priv
->sta_lock
, flags
);
400 else if (is_broadcast_ether_addr(addr
))
401 index
= priv
->hw_setting
.bcast_sta_id
;
403 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++)
404 if (priv
->stations
[i
].used
&&
405 !compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
411 if (unlikely(index
== IWL_INVALID_STATION
))
414 if (priv
->stations
[index
].used
) {
415 priv
->stations
[index
].used
= 0;
416 priv
->num_stations
--;
419 BUG_ON(priv
->num_stations
< 0);
422 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
428 * iwl4965_add_station_flags - Add station to tables in driver and device
430 u8
iwl4965_add_station_flags(struct iwl_priv
*priv
, const u8
*addr
,
431 int is_ap
, u8 flags
, void *ht_data
)
434 int index
= IWL_INVALID_STATION
;
435 struct iwl4965_station_entry
*station
;
436 unsigned long flags_spin
;
437 DECLARE_MAC_BUF(mac
);
439 spin_lock_irqsave(&priv
->sta_lock
, flags_spin
);
442 else if (is_broadcast_ether_addr(addr
))
443 index
= priv
->hw_setting
.bcast_sta_id
;
445 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++) {
446 if (!compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
452 if (!priv
->stations
[i
].used
&&
453 index
== IWL_INVALID_STATION
)
458 /* These two conditions have the same outcome, but keep them separate
459 since they have different meanings */
460 if (unlikely(index
== IWL_INVALID_STATION
)) {
461 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
465 if (priv
->stations
[index
].used
&&
466 !compare_ether_addr(priv
->stations
[index
].sta
.sta
.addr
, addr
)) {
467 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
472 IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index
, print_mac(mac
, addr
));
473 station
= &priv
->stations
[index
];
475 priv
->num_stations
++;
477 /* Set up the REPLY_ADD_STA command to send to device */
478 memset(&station
->sta
, 0, sizeof(struct iwl4965_addsta_cmd
));
479 memcpy(station
->sta
.sta
.addr
, addr
, ETH_ALEN
);
480 station
->sta
.mode
= 0;
481 station
->sta
.sta
.sta_id
= index
;
482 station
->sta
.station_flags
= 0;
484 #ifdef CONFIG_IWL4965_HT
485 /* BCAST station and IBSS stations do not work in HT mode */
486 if (index
!= priv
->hw_setting
.bcast_sta_id
&&
487 priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
)
488 iwl4965_set_ht_add_station(priv
, index
,
489 (struct ieee80211_ht_info
*) ht_data
);
490 #endif /*CONFIG_IWL4965_HT*/
492 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
494 /* Add station to device's station table */
495 iwl4965_send_add_station(priv
, &station
->sta
, flags
);
502 /*************** HOST COMMAND QUEUE FUNCTIONS *****/
505 * iwl4965_enqueue_hcmd - enqueue a uCode command
506 * @priv: device private data point
507 * @cmd: a point to the ucode command structure
509 * The function returns < 0 values to indicate the operation is
510 * failed. On success, it turns the index (> 0) of command in the
513 int iwl4965_enqueue_hcmd(struct iwl_priv
*priv
, struct iwl_host_cmd
*cmd
)
515 struct iwl4965_tx_queue
*txq
= &priv
->txq
[IWL_CMD_QUEUE_NUM
];
516 struct iwl4965_queue
*q
= &txq
->q
;
517 struct iwl4965_tfd_frame
*tfd
;
519 struct iwl_cmd
*out_cmd
;
521 u16 fix_size
= (u16
)(cmd
->len
+ sizeof(out_cmd
->hdr
));
522 dma_addr_t phys_addr
;
526 /* If any of the command structures end up being larger than
527 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
528 * we will need to increase the size of the TFD entries */
529 BUG_ON((fix_size
> TFD_MAX_PAYLOAD_SIZE
) &&
530 !(cmd
->meta
.flags
& CMD_SIZE_HUGE
));
532 if (iwl_is_rfkill(priv
)) {
533 IWL_DEBUG_INFO("Not sending command - RF KILL");
537 if (iwl4965_queue_space(q
) < ((cmd
->meta
.flags
& CMD_ASYNC
) ? 2 : 1)) {
538 IWL_ERROR("No space for Tx\n");
542 spin_lock_irqsave(&priv
->hcmd_lock
, flags
);
544 tfd
= &txq
->bd
[q
->write_ptr
];
545 memset(tfd
, 0, sizeof(*tfd
));
547 control_flags
= (u32
*) tfd
;
549 idx
= get_cmd_index(q
, q
->write_ptr
, cmd
->meta
.flags
& CMD_SIZE_HUGE
);
550 out_cmd
= &txq
->cmd
[idx
];
552 out_cmd
->hdr
.cmd
= cmd
->id
;
553 memcpy(&out_cmd
->meta
, &cmd
->meta
, sizeof(cmd
->meta
));
554 memcpy(&out_cmd
->cmd
.payload
, cmd
->data
, cmd
->len
);
556 /* At this point, the out_cmd now has all of the incoming cmd
559 out_cmd
->hdr
.flags
= 0;
560 out_cmd
->hdr
.sequence
= cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM
) |
561 INDEX_TO_SEQ(q
->write_ptr
));
562 if (out_cmd
->meta
.flags
& CMD_SIZE_HUGE
)
563 out_cmd
->hdr
.sequence
|= cpu_to_le16(SEQ_HUGE_FRAME
);
565 phys_addr
= txq
->dma_addr_cmd
+ sizeof(txq
->cmd
[0]) * idx
+
566 offsetof(struct iwl_cmd
, hdr
);
567 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, fix_size
);
569 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
570 "%d bytes at %d[%d]:%d\n",
571 get_cmd_string(out_cmd
->hdr
.cmd
),
572 out_cmd
->hdr
.cmd
, le16_to_cpu(out_cmd
->hdr
.sequence
),
573 fix_size
, q
->write_ptr
, idx
, IWL_CMD_QUEUE_NUM
);
575 txq
->need_update
= 1;
577 /* Set up entry in queue's byte count circular buffer */
578 priv
->cfg
->ops
->lib
->txq_update_byte_cnt_tbl(priv
, txq
, 0);
580 /* Increment and update queue's write index */
581 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
582 ret
= iwl4965_tx_queue_update_write_ptr(priv
, txq
);
584 spin_unlock_irqrestore(&priv
->hcmd_lock
, flags
);
585 return ret
? ret
: idx
;
588 static void iwl4965_set_rxon_hwcrypto(struct iwl_priv
*priv
, int hw_decrypt
)
590 struct iwl4965_rxon_cmd
*rxon
= &priv
->staging_rxon
;
593 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
595 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
599 int iwl4965_send_statistics_request(struct iwl_priv
*priv
)
602 return iwl_send_cmd_pdu(priv
, REPLY_STATISTICS_CMD
,
603 sizeof(flags
), &flags
);
607 * iwl4965_rxon_add_station - add station into station table.
609 * there is only one AP station with id= IWL_AP_ID
610 * NOTE: mutex must be held before calling this fnction
612 static int iwl4965_rxon_add_station(struct iwl_priv
*priv
,
613 const u8
*addr
, int is_ap
)
617 /* Add station to device's station table */
618 #ifdef CONFIG_IWL4965_HT
619 struct ieee80211_conf
*conf
= &priv
->hw
->conf
;
620 struct ieee80211_ht_info
*cur_ht_config
= &conf
->ht_conf
;
623 (conf
->flags
& IEEE80211_CONF_SUPPORT_HT_MODE
) &&
624 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
625 sta_id
= iwl4965_add_station_flags(priv
, addr
, is_ap
,
628 #endif /* CONFIG_IWL4965_HT */
629 sta_id
= iwl4965_add_station_flags(priv
, addr
, is_ap
,
632 /* Set up default rate scaling table in device's station table */
633 iwl4965_add_station(priv
, addr
, is_ap
);
639 * iwl4965_check_rxon_cmd - validate RXON structure is valid
641 * NOTE: This is really only useful during development and can eventually
642 * be #ifdef'd out once the driver is stable and folks aren't actively
645 static int iwl4965_check_rxon_cmd(struct iwl4965_rxon_cmd
*rxon
)
650 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
651 error
|= le32_to_cpu(rxon
->flags
&
652 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
653 RXON_FLG_RADAR_DETECT_MSK
));
655 IWL_WARNING("check 24G fields %d | %d\n",
658 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
659 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
661 IWL_WARNING("check 52 fields %d | %d\n",
663 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
665 IWL_WARNING("check 52 CCK %d | %d\n",
668 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
670 IWL_WARNING("check mac addr %d | %d\n", counter
++, error
);
672 /* make sure basic rates 6Mbps and 1Mbps are supported */
673 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
674 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
676 IWL_WARNING("check basic rate %d | %d\n", counter
++, error
);
678 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
680 IWL_WARNING("check assoc id %d | %d\n", counter
++, error
);
682 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
683 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
685 IWL_WARNING("check CCK and short slot %d | %d\n",
688 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
689 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
691 IWL_WARNING("check CCK & auto detect %d | %d\n",
694 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
695 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
697 IWL_WARNING("check TGG and auto detect %d | %d\n",
701 IWL_WARNING("Tuning to channel %d\n",
702 le16_to_cpu(rxon
->channel
));
705 IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
712 * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
713 * @priv: staging_rxon is compared to active_rxon
715 * If the RXON structure is changing enough to require a new tune,
716 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
717 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
719 static int iwl4965_full_rxon_required(struct iwl_priv
*priv
)
722 /* These items are only settable from the full RXON command */
723 if (!(priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ||
724 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
725 priv
->active_rxon
.bssid_addr
) ||
726 compare_ether_addr(priv
->staging_rxon
.node_addr
,
727 priv
->active_rxon
.node_addr
) ||
728 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
729 priv
->active_rxon
.wlap_bssid_addr
) ||
730 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
731 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
732 (priv
->staging_rxon
.air_propagation
!=
733 priv
->active_rxon
.air_propagation
) ||
734 (priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
!=
735 priv
->active_rxon
.ofdm_ht_single_stream_basic_rates
) ||
736 (priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
!=
737 priv
->active_rxon
.ofdm_ht_dual_stream_basic_rates
) ||
738 (priv
->staging_rxon
.rx_chain
!= priv
->active_rxon
.rx_chain
) ||
739 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
742 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
743 * be updated with the RXON_ASSOC command -- however only some
744 * flag transitions are allowed using RXON_ASSOC */
746 /* Check if we are not switching bands */
747 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
748 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
751 /* Check if we are switching association toggle */
752 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
753 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
759 static int iwl4965_send_rxon_assoc(struct iwl_priv
*priv
)
762 struct iwl4965_rxon_assoc_cmd rxon_assoc
;
763 const struct iwl4965_rxon_cmd
*rxon1
= &priv
->staging_rxon
;
764 const struct iwl4965_rxon_cmd
*rxon2
= &priv
->active_rxon
;
766 if ((rxon1
->flags
== rxon2
->flags
) &&
767 (rxon1
->filter_flags
== rxon2
->filter_flags
) &&
768 (rxon1
->cck_basic_rates
== rxon2
->cck_basic_rates
) &&
769 (rxon1
->ofdm_ht_single_stream_basic_rates
==
770 rxon2
->ofdm_ht_single_stream_basic_rates
) &&
771 (rxon1
->ofdm_ht_dual_stream_basic_rates
==
772 rxon2
->ofdm_ht_dual_stream_basic_rates
) &&
773 (rxon1
->rx_chain
== rxon2
->rx_chain
) &&
774 (rxon1
->ofdm_basic_rates
== rxon2
->ofdm_basic_rates
)) {
775 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
779 rxon_assoc
.flags
= priv
->staging_rxon
.flags
;
780 rxon_assoc
.filter_flags
= priv
->staging_rxon
.filter_flags
;
781 rxon_assoc
.ofdm_basic_rates
= priv
->staging_rxon
.ofdm_basic_rates
;
782 rxon_assoc
.cck_basic_rates
= priv
->staging_rxon
.cck_basic_rates
;
783 rxon_assoc
.reserved
= 0;
784 rxon_assoc
.ofdm_ht_single_stream_basic_rates
=
785 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
;
786 rxon_assoc
.ofdm_ht_dual_stream_basic_rates
=
787 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
;
788 rxon_assoc
.rx_chain_select_flags
= priv
->staging_rxon
.rx_chain
;
790 ret
= iwl_send_cmd_pdu_async(priv
, REPLY_RXON_ASSOC
,
791 sizeof(rxon_assoc
), &rxon_assoc
, NULL
);
799 * iwl4965_commit_rxon - commit staging_rxon to hardware
801 * The RXON command in staging_rxon is committed to the hardware and
802 * the active_rxon structure is updated with the new data. This
803 * function correctly transitions out of the RXON_ASSOC_MSK state if
804 * a HW tune is required based on the RXON structure changes.
806 static int iwl4965_commit_rxon(struct iwl_priv
*priv
)
808 /* cast away the const for active_rxon in this function */
809 struct iwl4965_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
810 DECLARE_MAC_BUF(mac
);
813 if (!iwl_is_alive(priv
))
816 /* always get timestamp with Rx frame */
817 priv
->staging_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
819 rc
= iwl4965_check_rxon_cmd(&priv
->staging_rxon
);
821 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
825 /* If we don't need to send a full RXON, we can use
826 * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
827 * and other flags for the current radio configuration. */
828 if (!iwl4965_full_rxon_required(priv
)) {
829 rc
= iwl4965_send_rxon_assoc(priv
);
831 IWL_ERROR("Error setting RXON_ASSOC "
832 "configuration (%d).\n", rc
);
836 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
841 /* station table will be cleared */
842 priv
->assoc_station_added
= 0;
844 #ifdef CONFIG_IWL4965_SENSITIVITY
845 priv
->sensitivity_data
.state
= IWL_SENS_CALIB_NEED_REINIT
;
846 if (!priv
->error_recovering
)
847 priv
->start_calib
= 0;
849 iwl4965_init_sensitivity(priv
, CMD_ASYNC
, 1);
850 #endif /* CONFIG_IWL4965_SENSITIVITY */
852 /* If we are currently associated and the new config requires
853 * an RXON_ASSOC and the new config wants the associated mask enabled,
854 * we must clear the associated from the active configuration
855 * before we apply the new config */
856 if (iwl_is_associated(priv
) &&
857 (priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
)) {
858 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
859 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
861 rc
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
862 sizeof(struct iwl4965_rxon_cmd
),
865 /* If the mask clearing failed then we set
866 * active_rxon back to what it was previously */
868 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
869 IWL_ERROR("Error clearing ASSOC_MSK on current "
870 "configuration (%d).\n", rc
);
875 IWL_DEBUG_INFO("Sending RXON\n"
876 "* with%s RXON_FILTER_ASSOC_MSK\n"
879 ((priv
->staging_rxon
.filter_flags
&
880 RXON_FILTER_ASSOC_MSK
) ? "" : "out"),
881 le16_to_cpu(priv
->staging_rxon
.channel
),
882 print_mac(mac
, priv
->staging_rxon
.bssid_addr
));
884 iwl4965_set_rxon_hwcrypto(priv
, priv
->cfg
->mod_params
->hw_crypto
);
885 /* Apply the new configuration */
886 rc
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
887 sizeof(struct iwl4965_rxon_cmd
), &priv
->staging_rxon
);
889 IWL_ERROR("Error setting new configuration (%d).\n", rc
);
893 iwlcore_clear_stations_table(priv
);
895 #ifdef CONFIG_IWL4965_SENSITIVITY
896 if (!priv
->error_recovering
)
897 priv
->start_calib
= 0;
899 priv
->sensitivity_data
.state
= IWL_SENS_CALIB_NEED_REINIT
;
900 iwl4965_init_sensitivity(priv
, CMD_ASYNC
, 1);
901 #endif /* CONFIG_IWL4965_SENSITIVITY */
903 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
905 /* If we issue a new RXON command which required a tune then we must
906 * send a new TXPOWER command or we won't be able to Tx any frames */
907 rc
= iwl4965_hw_reg_send_txpower(priv
);
909 IWL_ERROR("Error setting Tx power (%d).\n", rc
);
913 /* Add the broadcast address so we can send broadcast frames */
914 if (iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0) ==
915 IWL_INVALID_STATION
) {
916 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
920 /* If we have set the ASSOC_MSK and we are in BSS mode then
921 * add the IWL_AP_ID to the station rate table */
922 if (iwl_is_associated(priv
) &&
923 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)) {
924 if (iwl4965_rxon_add_station(priv
, priv
->active_rxon
.bssid_addr
, 1)
925 == IWL_INVALID_STATION
) {
926 IWL_ERROR("Error adding AP address for transmit.\n");
929 priv
->assoc_station_added
= 1;
930 if (priv
->default_wep_key
&&
931 iwl_send_static_wepkey_cmd(priv
, 0))
932 IWL_ERROR("Could not send WEP static key.\n");
938 static int iwl4965_send_bt_config(struct iwl_priv
*priv
)
940 struct iwl4965_bt_cmd bt_cmd
= {
948 return iwl_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
949 sizeof(struct iwl4965_bt_cmd
), &bt_cmd
);
952 static int iwl4965_send_scan_abort(struct iwl_priv
*priv
)
955 struct iwl4965_rx_packet
*res
;
956 struct iwl_host_cmd cmd
= {
957 .id
= REPLY_SCAN_ABORT_CMD
,
958 .meta
.flags
= CMD_WANT_SKB
,
961 /* If there isn't a scan actively going on in the hardware
962 * then we are in between scan bands and not actually
963 * actively scanning, so don't send the abort command */
964 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
965 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
969 rc
= iwl_send_cmd_sync(priv
, &cmd
);
971 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
975 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
976 if (res
->u
.status
!= CAN_ABORT_STATUS
) {
977 /* The scan abort will return 1 for success or
978 * 2 for "failure". A failure condition can be
979 * due to simply not being in an active scan which
980 * can occur if we send the scan abort before we
981 * the microcode has notified us that a scan is
983 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res
->u
.status
);
984 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
985 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
988 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
993 static int iwl4965_card_state_sync_callback(struct iwl_priv
*priv
,
1003 * Use: Sets the device's internal card state to enable, disable, or halt
1005 * When in the 'enable' state the card operates as normal.
1006 * When in the 'disable' state, the card enters into a low power mode.
1007 * When in the 'halt' state, the card is shut down and must be fully
1008 * restarted to come back on.
1010 static int iwl4965_send_card_state(struct iwl_priv
*priv
, u32 flags
, u8 meta_flag
)
1012 struct iwl_host_cmd cmd
= {
1013 .id
= REPLY_CARD_STATE_CMD
,
1016 .meta
.flags
= meta_flag
,
1019 if (meta_flag
& CMD_ASYNC
)
1020 cmd
.meta
.u
.callback
= iwl4965_card_state_sync_callback
;
1022 return iwl_send_cmd(priv
, &cmd
);
1025 static int iwl4965_add_sta_sync_callback(struct iwl_priv
*priv
,
1026 struct iwl_cmd
*cmd
, struct sk_buff
*skb
)
1028 struct iwl4965_rx_packet
*res
= NULL
;
1031 IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n");
1035 res
= (struct iwl4965_rx_packet
*)skb
->data
;
1036 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1037 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1042 switch (res
->u
.add_sta
.status
) {
1043 case ADD_STA_SUCCESS_MSK
:
1049 /* We didn't cache the SKB; let the caller free it */
1053 int iwl4965_send_add_station(struct iwl_priv
*priv
,
1054 struct iwl4965_addsta_cmd
*sta
, u8 flags
)
1056 struct iwl4965_rx_packet
*res
= NULL
;
1058 struct iwl_host_cmd cmd
= {
1059 .id
= REPLY_ADD_STA
,
1060 .len
= sizeof(struct iwl4965_addsta_cmd
),
1061 .meta
.flags
= flags
,
1065 if (flags
& CMD_ASYNC
)
1066 cmd
.meta
.u
.callback
= iwl4965_add_sta_sync_callback
;
1068 cmd
.meta
.flags
|= CMD_WANT_SKB
;
1070 rc
= iwl_send_cmd(priv
, &cmd
);
1072 if (rc
|| (flags
& CMD_ASYNC
))
1075 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1076 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1077 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1083 switch (res
->u
.add_sta
.status
) {
1084 case ADD_STA_SUCCESS_MSK
:
1085 IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
1089 IWL_WARNING("REPLY_ADD_STA failed\n");
1094 priv
->alloc_rxb_skb
--;
1095 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1100 static void iwl4965_clear_free_frames(struct iwl_priv
*priv
)
1102 struct list_head
*element
;
1104 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
1105 priv
->frames_count
);
1107 while (!list_empty(&priv
->free_frames
)) {
1108 element
= priv
->free_frames
.next
;
1110 kfree(list_entry(element
, struct iwl4965_frame
, list
));
1111 priv
->frames_count
--;
1114 if (priv
->frames_count
) {
1115 IWL_WARNING("%d frames still in use. Did we lose one?\n",
1116 priv
->frames_count
);
1117 priv
->frames_count
= 0;
1121 static struct iwl4965_frame
*iwl4965_get_free_frame(struct iwl_priv
*priv
)
1123 struct iwl4965_frame
*frame
;
1124 struct list_head
*element
;
1125 if (list_empty(&priv
->free_frames
)) {
1126 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
1128 IWL_ERROR("Could not allocate frame!\n");
1132 priv
->frames_count
++;
1136 element
= priv
->free_frames
.next
;
1138 return list_entry(element
, struct iwl4965_frame
, list
);
1141 static void iwl4965_free_frame(struct iwl_priv
*priv
, struct iwl4965_frame
*frame
)
1143 memset(frame
, 0, sizeof(*frame
));
1144 list_add(&frame
->list
, &priv
->free_frames
);
1147 unsigned int iwl4965_fill_beacon_frame(struct iwl_priv
*priv
,
1148 struct ieee80211_hdr
*hdr
,
1149 const u8
*dest
, int left
)
1152 if (!iwl_is_associated(priv
) || !priv
->ibss_beacon
||
1153 ((priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) &&
1154 (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
)))
1157 if (priv
->ibss_beacon
->len
> left
)
1160 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
1162 return priv
->ibss_beacon
->len
;
1165 static u8
iwl4965_rate_get_lowest_plcp(int rate_mask
)
1169 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
1170 i
= iwl4965_rates
[i
].next_ieee
) {
1171 if (rate_mask
& (1 << i
))
1172 return iwl4965_rates
[i
].plcp
;
1175 return IWL_RATE_INVALID
;
1178 static int iwl4965_send_beacon_cmd(struct iwl_priv
*priv
)
1180 struct iwl4965_frame
*frame
;
1181 unsigned int frame_size
;
1185 frame
= iwl4965_get_free_frame(priv
);
1188 IWL_ERROR("Could not obtain free frame buffer for beacon "
1193 if (!(priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)) {
1194 rate
= iwl4965_rate_get_lowest_plcp(priv
->active_rate_basic
&
1196 if (rate
== IWL_INVALID_RATE
)
1197 rate
= IWL_RATE_6M_PLCP
;
1199 rate
= iwl4965_rate_get_lowest_plcp(priv
->active_rate_basic
& 0xF);
1200 if (rate
== IWL_INVALID_RATE
)
1201 rate
= IWL_RATE_1M_PLCP
;
1204 frame_size
= iwl4965_hw_get_beacon_cmd(priv
, frame
, rate
);
1206 rc
= iwl_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
1209 iwl4965_free_frame(priv
, frame
);
1214 /******************************************************************************
1216 * Misc. internal state and helper functions
1218 ******************************************************************************/
1220 static void iwl4965_unset_hw_setting(struct iwl_priv
*priv
)
1222 if (priv
->hw_setting
.shared_virt
)
1223 pci_free_consistent(priv
->pci_dev
,
1224 sizeof(struct iwl4965_shared
),
1225 priv
->hw_setting
.shared_virt
,
1226 priv
->hw_setting
.shared_phys
);
1230 * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field
1232 * return : set the bit for each supported rate insert in ie
1234 static u16
iwl4965_supported_rate_to_ie(u8
*ie
, u16 supported_rate
,
1235 u16 basic_rate
, int *left
)
1237 u16 ret_rates
= 0, bit
;
1242 for (bit
= 1, i
= 0; i
< IWL_RATE_COUNT
; i
++, bit
<<= 1) {
1243 if (bit
& supported_rate
) {
1245 rates
[*cnt
] = iwl4965_rates
[i
].ieee
|
1246 ((bit
& basic_rate
) ? 0x80 : 0x00);
1250 (*cnt
>= IWL_SUPPORTED_RATES_IE_LEN
))
1259 * iwl4965_fill_probe_req - fill in all required fields and IE for probe request
1261 static u16
iwl4965_fill_probe_req(struct iwl_priv
*priv
,
1262 enum ieee80211_band band
,
1263 struct ieee80211_mgmt
*frame
,
1264 int left
, int is_direct
)
1268 u16 active_rates
, ret_rates
, cck_rates
, active_rate_basic
;
1269 #ifdef CONFIG_IWL4965_HT
1270 const struct ieee80211_supported_band
*sband
=
1271 iwl4965_get_hw_mode(priv
, band
);
1272 #endif /* CONFIG_IWL4965_HT */
1274 /* Make sure there is enough space for the probe request,
1275 * two mandatory IEs and the data */
1281 frame
->frame_control
= cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
);
1282 memcpy(frame
->da
, iwl4965_broadcast_addr
, ETH_ALEN
);
1283 memcpy(frame
->sa
, priv
->mac_addr
, ETH_ALEN
);
1284 memcpy(frame
->bssid
, iwl4965_broadcast_addr
, ETH_ALEN
);
1285 frame
->seq_ctrl
= 0;
1287 /* fill in our indirect SSID IE */
1294 pos
= &(frame
->u
.probe_req
.variable
[0]);
1295 *pos
++ = WLAN_EID_SSID
;
1298 /* fill in our direct SSID IE... */
1301 left
-= 2 + priv
->essid_len
;
1304 /* ... fill it in... */
1305 *pos
++ = WLAN_EID_SSID
;
1306 *pos
++ = priv
->essid_len
;
1307 memcpy(pos
, priv
->essid
, priv
->essid_len
);
1308 pos
+= priv
->essid_len
;
1309 len
+= 2 + priv
->essid_len
;
1312 /* fill in supported rate */
1318 /* ... fill it in... */
1319 *pos
++ = WLAN_EID_SUPP_RATES
;
1322 /* exclude 60M rate */
1323 active_rates
= priv
->rates_mask
;
1324 active_rates
&= ~IWL_RATE_60M_MASK
;
1326 active_rate_basic
= active_rates
& IWL_BASIC_RATES_MASK
;
1328 cck_rates
= IWL_CCK_RATES_MASK
& active_rates
;
1329 ret_rates
= iwl4965_supported_rate_to_ie(pos
, cck_rates
,
1330 active_rate_basic
, &left
);
1331 active_rates
&= ~ret_rates
;
1333 ret_rates
= iwl4965_supported_rate_to_ie(pos
, active_rates
,
1334 active_rate_basic
, &left
);
1335 active_rates
&= ~ret_rates
;
1339 if (active_rates
== 0)
1342 /* fill in supported extended rate */
1347 /* ... fill it in... */
1348 *pos
++ = WLAN_EID_EXT_SUPP_RATES
;
1350 iwl4965_supported_rate_to_ie(pos
, active_rates
,
1351 active_rate_basic
, &left
);
1355 #ifdef CONFIG_IWL4965_HT
1356 if (sband
&& sband
->ht_info
.ht_supported
) {
1357 struct ieee80211_ht_cap
*ht_cap
;
1359 *pos
++ = WLAN_EID_HT_CAPABILITY
;
1360 *pos
++ = sizeof(struct ieee80211_ht_cap
);
1361 ht_cap
= (struct ieee80211_ht_cap
*)pos
;
1362 ht_cap
->cap_info
= cpu_to_le16(sband
->ht_info
.cap
);
1363 memcpy(ht_cap
->supp_mcs_set
, sband
->ht_info
.supp_mcs_set
, 16);
1364 ht_cap
->ampdu_params_info
=(sband
->ht_info
.ampdu_factor
&
1365 IEEE80211_HT_CAP_AMPDU_FACTOR
) |
1366 ((sband
->ht_info
.ampdu_density
<< 2) &
1367 IEEE80211_HT_CAP_AMPDU_DENSITY
);
1368 len
+= 2 + sizeof(struct ieee80211_ht_cap
);
1370 #endif /*CONFIG_IWL4965_HT */
1379 static int iwl4965_send_qos_params_command(struct iwl_priv
*priv
,
1380 struct iwl4965_qosparam_cmd
*qos
)
1383 return iwl_send_cmd_pdu(priv
, REPLY_QOS_PARAM
,
1384 sizeof(struct iwl4965_qosparam_cmd
), qos
);
1387 static void iwl4965_activate_qos(struct iwl_priv
*priv
, u8 force
)
1389 unsigned long flags
;
1391 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
1394 if (!priv
->qos_data
.qos_enable
)
1397 spin_lock_irqsave(&priv
->lock
, flags
);
1398 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
1400 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
1401 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
1402 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1403 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
1404 if (priv
->qos_data
.qos_active
)
1405 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1406 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
1408 #ifdef CONFIG_IWL4965_HT
1409 if (priv
->current_ht_config
.is_ht
)
1410 priv
->qos_data
.def_qos_parm
.qos_flags
|= QOS_PARAM_FLG_TGN_MSK
;
1411 #endif /* CONFIG_IWL4965_HT */
1413 spin_unlock_irqrestore(&priv
->lock
, flags
);
1415 if (force
|| iwl_is_associated(priv
)) {
1416 IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
1417 priv
->qos_data
.qos_active
,
1418 priv
->qos_data
.def_qos_parm
.qos_flags
);
1420 iwl4965_send_qos_params_command(priv
,
1421 &(priv
->qos_data
.def_qos_parm
));
1426 * Power management (not Tx power!) functions
1428 #define MSEC_TO_USEC 1024
1430 #define NOSLP __constant_cpu_to_le16(0), 0, 0
1431 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
1432 #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
1433 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
1434 __constant_cpu_to_le32(X1), \
1435 __constant_cpu_to_le32(X2), \
1436 __constant_cpu_to_le32(X3), \
1437 __constant_cpu_to_le32(X4)}
1440 /* default power management (not Tx power) table values */
1442 static struct iwl4965_power_vec_entry range_0
[IWL_POWER_AC
] = {
1443 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1444 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
1445 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
1446 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
1447 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
1448 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
1452 static struct iwl4965_power_vec_entry range_1
[IWL_POWER_AC
] = {
1453 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1454 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
1455 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
1456 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
1457 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
1458 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
1459 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
1460 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
1461 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
1462 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
1465 int iwl4965_power_init_handle(struct iwl_priv
*priv
)
1468 struct iwl4965_power_mgr
*pow_data
;
1469 int size
= sizeof(struct iwl4965_power_vec_entry
) * IWL_POWER_AC
;
1472 IWL_DEBUG_POWER("Initialize power \n");
1474 pow_data
= &(priv
->power_data
);
1476 memset(pow_data
, 0, sizeof(*pow_data
));
1478 pow_data
->active_index
= IWL_POWER_RANGE_0
;
1479 pow_data
->dtim_val
= 0xffff;
1481 memcpy(&pow_data
->pwr_range_0
[0], &range_0
[0], size
);
1482 memcpy(&pow_data
->pwr_range_1
[0], &range_1
[0], size
);
1484 rc
= pci_read_config_word(priv
->pci_dev
, PCI_LINK_CTRL
, &pci_pm
);
1488 struct iwl4965_powertable_cmd
*cmd
;
1490 IWL_DEBUG_POWER("adjust power command flags\n");
1492 for (i
= 0; i
< IWL_POWER_AC
; i
++) {
1493 cmd
= &pow_data
->pwr_range_0
[i
].cmd
;
1496 cmd
->flags
&= ~IWL_POWER_PCI_PM_MSK
;
1498 cmd
->flags
|= IWL_POWER_PCI_PM_MSK
;
1504 static int iwl4965_update_power_cmd(struct iwl_priv
*priv
,
1505 struct iwl4965_powertable_cmd
*cmd
, u32 mode
)
1510 struct iwl4965_power_vec_entry
*range
;
1512 struct iwl4965_power_mgr
*pow_data
;
1514 if (mode
> IWL_POWER_INDEX_5
) {
1515 IWL_DEBUG_POWER("Error invalid power mode \n");
1518 pow_data
= &(priv
->power_data
);
1520 if (pow_data
->active_index
== IWL_POWER_RANGE_0
)
1521 range
= &pow_data
->pwr_range_0
[0];
1523 range
= &pow_data
->pwr_range_1
[1];
1525 memcpy(cmd
, &range
[mode
].cmd
, sizeof(struct iwl4965_powertable_cmd
));
1527 #ifdef IWL_MAC80211_DISABLE
1528 if (priv
->assoc_network
!= NULL
) {
1529 unsigned long flags
;
1531 period
= priv
->assoc_network
->tim
.tim_period
;
1533 #endif /*IWL_MAC80211_DISABLE */
1534 skip
= range
[mode
].no_dtim
;
1543 cmd
->flags
&= ~IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1545 __le32 slp_itrvl
= cmd
->sleep_interval
[IWL_POWER_VEC_SIZE
- 1];
1546 max_sleep
= (le32_to_cpu(slp_itrvl
) / period
) * period
;
1547 cmd
->flags
|= IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1550 for (i
= 0; i
< IWL_POWER_VEC_SIZE
; i
++) {
1551 if (le32_to_cpu(cmd
->sleep_interval
[i
]) > max_sleep
)
1552 cmd
->sleep_interval
[i
] = cpu_to_le32(max_sleep
);
1555 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd
->flags
);
1556 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd
->tx_data_timeout
));
1557 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd
->rx_data_timeout
));
1558 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
1559 le32_to_cpu(cmd
->sleep_interval
[0]),
1560 le32_to_cpu(cmd
->sleep_interval
[1]),
1561 le32_to_cpu(cmd
->sleep_interval
[2]),
1562 le32_to_cpu(cmd
->sleep_interval
[3]),
1563 le32_to_cpu(cmd
->sleep_interval
[4]));
1568 static int iwl4965_send_power_mode(struct iwl_priv
*priv
, u32 mode
)
1570 u32
uninitialized_var(final_mode
);
1572 struct iwl4965_powertable_cmd cmd
;
1574 /* If on battery, set to 3,
1575 * if plugged into AC power, set to CAM ("continuously aware mode"),
1576 * else user level */
1578 case IWL_POWER_BATTERY
:
1579 final_mode
= IWL_POWER_INDEX_3
;
1582 final_mode
= IWL_POWER_MODE_CAM
;
1589 cmd
.keep_alive_beacons
= 0;
1591 iwl4965_update_power_cmd(priv
, &cmd
, final_mode
);
1593 rc
= iwl_send_cmd_pdu(priv
, POWER_TABLE_CMD
, sizeof(cmd
), &cmd
);
1595 if (final_mode
== IWL_POWER_MODE_CAM
)
1596 clear_bit(STATUS_POWER_PMI
, &priv
->status
);
1598 set_bit(STATUS_POWER_PMI
, &priv
->status
);
1603 int iwl4965_is_network_packet(struct iwl_priv
*priv
, struct ieee80211_hdr
*header
)
1605 /* Filter incoming packets to determine if they are targeted toward
1606 * this network, discarding packets coming from ourselves */
1607 switch (priv
->iw_mode
) {
1608 case IEEE80211_IF_TYPE_IBSS
: /* Header: Dest. | Source | BSSID */
1609 /* packets from our adapter are dropped (echo) */
1610 if (!compare_ether_addr(header
->addr2
, priv
->mac_addr
))
1612 /* {broad,multi}cast packets to our IBSS go through */
1613 if (is_multicast_ether_addr(header
->addr1
))
1614 return !compare_ether_addr(header
->addr3
, priv
->bssid
);
1615 /* packets to our adapter go through */
1616 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
1617 case IEEE80211_IF_TYPE_STA
: /* Header: Dest. | AP{BSSID} | Source */
1618 /* packets from our adapter are dropped (echo) */
1619 if (!compare_ether_addr(header
->addr3
, priv
->mac_addr
))
1621 /* {broad,multi}cast packets to our BSS go through */
1622 if (is_multicast_ether_addr(header
->addr1
))
1623 return !compare_ether_addr(header
->addr2
, priv
->bssid
);
1624 /* packets to our adapter go through */
1625 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
1633 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
1635 static const char *iwl4965_get_tx_fail_reason(u32 status
)
1637 switch (status
& TX_STATUS_MSK
) {
1638 case TX_STATUS_SUCCESS
:
1640 TX_STATUS_ENTRY(SHORT_LIMIT
);
1641 TX_STATUS_ENTRY(LONG_LIMIT
);
1642 TX_STATUS_ENTRY(FIFO_UNDERRUN
);
1643 TX_STATUS_ENTRY(MGMNT_ABORT
);
1644 TX_STATUS_ENTRY(NEXT_FRAG
);
1645 TX_STATUS_ENTRY(LIFE_EXPIRE
);
1646 TX_STATUS_ENTRY(DEST_PS
);
1647 TX_STATUS_ENTRY(ABORTED
);
1648 TX_STATUS_ENTRY(BT_RETRY
);
1649 TX_STATUS_ENTRY(STA_INVALID
);
1650 TX_STATUS_ENTRY(FRAG_DROPPED
);
1651 TX_STATUS_ENTRY(TID_DISABLE
);
1652 TX_STATUS_ENTRY(FRAME_FLUSHED
);
1653 TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL
);
1654 TX_STATUS_ENTRY(TX_LOCKED
);
1655 TX_STATUS_ENTRY(NO_BEACON_ON_RADAR
);
1662 * iwl4965_scan_cancel - Cancel any currently executing HW scan
1664 * NOTE: priv->mutex is not required before calling this function
1666 static int iwl4965_scan_cancel(struct iwl_priv
*priv
)
1668 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1669 clear_bit(STATUS_SCANNING
, &priv
->status
);
1673 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
1674 if (!test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
1675 IWL_DEBUG_SCAN("Queuing scan abort.\n");
1676 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1677 queue_work(priv
->workqueue
, &priv
->abort_scan
);
1680 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
1682 return test_bit(STATUS_SCANNING
, &priv
->status
);
1689 * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan
1690 * @ms: amount of time to wait (in milliseconds) for scan to abort
1692 * NOTE: priv->mutex must be held before calling this function
1694 static int iwl4965_scan_cancel_timeout(struct iwl_priv
*priv
, unsigned long ms
)
1696 unsigned long now
= jiffies
;
1699 ret
= iwl4965_scan_cancel(priv
);
1701 mutex_unlock(&priv
->mutex
);
1702 while (!time_after(jiffies
, now
+ msecs_to_jiffies(ms
)) &&
1703 test_bit(STATUS_SCANNING
, &priv
->status
))
1705 mutex_lock(&priv
->mutex
);
1707 return test_bit(STATUS_SCANNING
, &priv
->status
);
1713 static void iwl4965_sequence_reset(struct iwl_priv
*priv
)
1715 /* Reset ieee stats */
1717 /* We don't reset the net_device_stats (ieee->stats) on
1720 priv
->last_seq_num
= -1;
1721 priv
->last_frag_num
= -1;
1722 priv
->last_packet_time
= 0;
1724 iwl4965_scan_cancel(priv
);
1727 #define MAX_UCODE_BEACON_INTERVAL 4096
1728 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
1730 static __le16
iwl4965_adjust_beacon_interval(u16 beacon_val
)
1733 u16 beacon_factor
= 0;
1736 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
1737 / MAX_UCODE_BEACON_INTERVAL
;
1738 new_val
= beacon_val
/ beacon_factor
;
1740 return cpu_to_le16(new_val
);
1743 static void iwl4965_setup_rxon_timing(struct iwl_priv
*priv
)
1745 u64 interval_tm_unit
;
1747 unsigned long flags
;
1748 struct ieee80211_conf
*conf
= NULL
;
1751 conf
= ieee80211_get_hw_conf(priv
->hw
);
1753 spin_lock_irqsave(&priv
->lock
, flags
);
1754 priv
->rxon_timing
.timestamp
.dw
[1] = cpu_to_le32(priv
->timestamp
>> 32);
1755 priv
->rxon_timing
.timestamp
.dw
[0] =
1756 cpu_to_le32(priv
->timestamp
& 0xFFFFFFFF);
1758 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
1760 tsf
= priv
->timestamp
;
1762 beacon_int
= priv
->beacon_int
;
1763 spin_unlock_irqrestore(&priv
->lock
, flags
);
1765 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) {
1766 if (beacon_int
== 0) {
1767 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
1768 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
1770 priv
->rxon_timing
.beacon_interval
=
1771 cpu_to_le16(beacon_int
);
1772 priv
->rxon_timing
.beacon_interval
=
1773 iwl4965_adjust_beacon_interval(
1774 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
1777 priv
->rxon_timing
.atim_window
= 0;
1779 priv
->rxon_timing
.beacon_interval
=
1780 iwl4965_adjust_beacon_interval(conf
->beacon_int
);
1781 /* TODO: we need to get atim_window from upper stack
1782 * for now we set to 0 */
1783 priv
->rxon_timing
.atim_window
= 0;
1787 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
1788 result
= do_div(tsf
, interval_tm_unit
);
1789 priv
->rxon_timing
.beacon_init_val
=
1790 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
1793 ("beacon interval %d beacon timer %d beacon tim %d\n",
1794 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
1795 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
1796 le16_to_cpu(priv
->rxon_timing
.atim_window
));
1799 static int iwl4965_scan_initiate(struct iwl_priv
*priv
)
1801 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
1802 IWL_ERROR("APs don't scan.\n");
1806 if (!iwl_is_ready_rf(priv
)) {
1807 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
1811 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
1812 IWL_DEBUG_SCAN("Scan already in progress.\n");
1816 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
1817 IWL_DEBUG_SCAN("Scan request while abort pending. "
1822 IWL_DEBUG_INFO("Starting scan...\n");
1823 priv
->scan_bands
= 2;
1824 set_bit(STATUS_SCANNING
, &priv
->status
);
1825 priv
->scan_start
= jiffies
;
1826 priv
->scan_pass_start
= priv
->scan_start
;
1828 queue_work(priv
->workqueue
, &priv
->request_scan
);
1834 static void iwl4965_set_flags_for_phymode(struct iwl_priv
*priv
,
1835 enum ieee80211_band band
)
1837 if (band
== IEEE80211_BAND_5GHZ
) {
1838 priv
->staging_rxon
.flags
&=
1839 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
1840 | RXON_FLG_CCK_MSK
);
1841 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1843 /* Copied from iwl4965_post_associate() */
1844 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
1845 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
1847 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1849 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
1850 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
1852 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
1853 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
1854 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
1859 * initialize rxon structure with default values from eeprom
1861 static void iwl4965_connection_init_rx_config(struct iwl_priv
*priv
)
1863 const struct iwl_channel_info
*ch_info
;
1865 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
1867 switch (priv
->iw_mode
) {
1868 case IEEE80211_IF_TYPE_AP
:
1869 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
1872 case IEEE80211_IF_TYPE_STA
:
1873 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
1874 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
1877 case IEEE80211_IF_TYPE_IBSS
:
1878 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
1879 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
1880 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
1881 RXON_FILTER_ACCEPT_GRP_MSK
;
1884 case IEEE80211_IF_TYPE_MNTR
:
1885 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
1886 priv
->staging_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
1887 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
1890 IWL_ERROR("Unsupported interface type %d\n", priv
->iw_mode
);
1895 /* TODO: Figure out when short_preamble would be set and cache from
1897 if (!hw_to_local(priv
->hw
)->short_preamble
)
1898 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
1900 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
1903 ch_info
= iwl_get_channel_info(priv
, priv
->band
,
1904 le16_to_cpu(priv
->staging_rxon
.channel
));
1907 ch_info
= &priv
->channel_info
[0];
1910 * in some case A channels are all non IBSS
1911 * in this case force B/G channel
1913 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) &&
1914 !(is_channel_ibss(ch_info
)))
1915 ch_info
= &priv
->channel_info
[0];
1917 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
1918 priv
->band
= ch_info
->band
;
1920 iwl4965_set_flags_for_phymode(priv
, priv
->band
);
1922 priv
->staging_rxon
.ofdm_basic_rates
=
1923 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
1924 priv
->staging_rxon
.cck_basic_rates
=
1925 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
1927 priv
->staging_rxon
.flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK
|
1928 RXON_FLG_CHANNEL_MODE_PURE_40_MSK
);
1929 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
1930 memcpy(priv
->staging_rxon
.wlap_bssid_addr
, priv
->mac_addr
, ETH_ALEN
);
1931 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
= 0xff;
1932 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
= 0xff;
1933 iwl4965_set_rxon_chain(priv
);
1936 static int iwl4965_set_mode(struct iwl_priv
*priv
, int mode
)
1938 if (mode
== IEEE80211_IF_TYPE_IBSS
) {
1939 const struct iwl_channel_info
*ch_info
;
1941 ch_info
= iwl_get_channel_info(priv
,
1943 le16_to_cpu(priv
->staging_rxon
.channel
));
1945 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
1946 IWL_ERROR("channel %d not IBSS channel\n",
1947 le16_to_cpu(priv
->staging_rxon
.channel
));
1952 priv
->iw_mode
= mode
;
1954 iwl4965_connection_init_rx_config(priv
);
1955 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
1957 iwlcore_clear_stations_table(priv
);
1959 /* dont commit rxon if rf-kill is on*/
1960 if (!iwl_is_ready_rf(priv
))
1963 cancel_delayed_work(&priv
->scan_check
);
1964 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
1965 IWL_WARNING("Aborted scan still in progress after 100ms\n");
1966 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
1970 iwl4965_commit_rxon(priv
);
1975 static void iwl4965_build_tx_cmd_hwcrypto(struct iwl_priv
*priv
,
1976 struct ieee80211_tx_control
*ctl
,
1977 struct iwl_cmd
*cmd
,
1978 struct sk_buff
*skb_frag
,
1981 struct iwl4965_hw_key
*keyinfo
= &priv
->stations
[sta_id
].keyinfo
;
1982 struct iwl_wep_key
*wepkey
;
1985 BUG_ON(ctl
->key_idx
> 3);
1987 switch (keyinfo
->alg
) {
1989 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_CCM
;
1990 memcpy(cmd
->cmd
.tx
.key
, keyinfo
->key
, keyinfo
->keylen
);
1991 if (ctl
->flags
& IEEE80211_TXCTL_AMPDU
)
1992 cmd
->cmd
.tx
.tx_flags
|= TX_CMD_FLG_AGG_CCMP_MSK
;
1993 IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
1997 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_TKIP
;
1998 ieee80211_get_tkip_key(keyinfo
->conf
, skb_frag
,
1999 IEEE80211_TKIP_P2_KEY
, cmd
->cmd
.tx
.key
);
2000 IWL_DEBUG_TX("tx_cmd with tkip hwcrypto\n");
2004 wepkey
= &priv
->wep_keys
[ctl
->key_idx
];
2005 cmd
->cmd
.tx
.sec_ctl
= 0;
2006 if (priv
->default_wep_key
) {
2007 /* the WEP key was sent as static */
2008 keyidx
= ctl
->key_idx
;
2009 memcpy(&cmd
->cmd
.tx
.key
[3], wepkey
->key
,
2011 if (wepkey
->key_size
== WEP_KEY_LEN_128
)
2012 cmd
->cmd
.tx
.sec_ctl
|= TX_CMD_SEC_KEY128
;
2014 /* the WEP key was sent as dynamic */
2015 keyidx
= keyinfo
->keyidx
;
2016 memcpy(&cmd
->cmd
.tx
.key
[3], keyinfo
->key
,
2018 if (keyinfo
->keylen
== WEP_KEY_LEN_128
)
2019 cmd
->cmd
.tx
.sec_ctl
|= TX_CMD_SEC_KEY128
;
2022 cmd
->cmd
.tx
.sec_ctl
|= (TX_CMD_SEC_WEP
|
2023 (keyidx
& TX_CMD_SEC_MSK
) << TX_CMD_SEC_SHIFT
);
2025 IWL_DEBUG_TX("Configuring packet for WEP encryption "
2026 "with key %d\n", keyidx
);
2030 printk(KERN_ERR
"Unknown encode alg %d\n", keyinfo
->alg
);
2036 * handle build REPLY_TX command notification.
2038 static void iwl4965_build_tx_cmd_basic(struct iwl_priv
*priv
,
2039 struct iwl_cmd
*cmd
,
2040 struct ieee80211_tx_control
*ctrl
,
2041 struct ieee80211_hdr
*hdr
,
2042 int is_unicast
, u8 std_id
)
2045 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2046 __le32 tx_flags
= cmd
->cmd
.tx
.tx_flags
;
2048 cmd
->cmd
.tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
2049 if (!(ctrl
->flags
& IEEE80211_TXCTL_NO_ACK
)) {
2050 tx_flags
|= TX_CMD_FLG_ACK_MSK
;
2051 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
)
2052 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2053 if (ieee80211_is_probe_response(fc
) &&
2054 !(le16_to_cpu(hdr
->seq_ctrl
) & 0xf))
2055 tx_flags
|= TX_CMD_FLG_TSF_MSK
;
2057 tx_flags
&= (~TX_CMD_FLG_ACK_MSK
);
2058 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2061 if (ieee80211_is_back_request(fc
))
2062 tx_flags
|= TX_CMD_FLG_ACK_MSK
| TX_CMD_FLG_IMM_BA_RSP_MASK
;
2065 cmd
->cmd
.tx
.sta_id
= std_id
;
2066 if (ieee80211_get_morefrag(hdr
))
2067 tx_flags
|= TX_CMD_FLG_MORE_FRAG_MSK
;
2069 qc
= ieee80211_get_qos_ctrl(hdr
);
2071 cmd
->cmd
.tx
.tid_tspec
= (u8
) (le16_to_cpu(*qc
) & 0xf);
2072 tx_flags
&= ~TX_CMD_FLG_SEQ_CTL_MSK
;
2074 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2076 if (ctrl
->flags
& IEEE80211_TXCTL_USE_RTS_CTS
) {
2077 tx_flags
|= TX_CMD_FLG_RTS_MSK
;
2078 tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
2079 } else if (ctrl
->flags
& IEEE80211_TXCTL_USE_CTS_PROTECT
) {
2080 tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
2081 tx_flags
|= TX_CMD_FLG_CTS_MSK
;
2084 if ((tx_flags
& TX_CMD_FLG_RTS_MSK
) || (tx_flags
& TX_CMD_FLG_CTS_MSK
))
2085 tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
2087 tx_flags
&= ~(TX_CMD_FLG_ANT_SEL_MSK
);
2088 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
) {
2089 if ((fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_ASSOC_REQ
||
2090 (fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_REASSOC_REQ
)
2091 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(3);
2093 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(2);
2095 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= 0;
2098 cmd
->cmd
.tx
.driver_txop
= 0;
2099 cmd
->cmd
.tx
.tx_flags
= tx_flags
;
2100 cmd
->cmd
.tx
.next_frame_len
= 0;
2102 static void iwl_update_tx_stats(struct iwl_priv
*priv
, u16 fc
, u16 len
)
2104 /* 0 - mgmt, 1 - cnt, 2 - data */
2105 int idx
= (fc
& IEEE80211_FCTL_FTYPE
) >> 2;
2106 priv
->tx_stats
[idx
].cnt
++;
2107 priv
->tx_stats
[idx
].bytes
+= len
;
2110 * iwl4965_get_sta_id - Find station's index within station table
2112 * If new IBSS station, create new entry in station table
2114 static int iwl4965_get_sta_id(struct iwl_priv
*priv
,
2115 struct ieee80211_hdr
*hdr
)
2118 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2119 DECLARE_MAC_BUF(mac
);
2121 /* If this frame is broadcast or management, use broadcast station id */
2122 if (((fc
& IEEE80211_FCTL_FTYPE
) != IEEE80211_FTYPE_DATA
) ||
2123 is_multicast_ether_addr(hdr
->addr1
))
2124 return priv
->hw_setting
.bcast_sta_id
;
2126 switch (priv
->iw_mode
) {
2128 /* If we are a client station in a BSS network, use the special
2129 * AP station entry (that's the only station we communicate with) */
2130 case IEEE80211_IF_TYPE_STA
:
2133 /* If we are an AP, then find the station, or use BCAST */
2134 case IEEE80211_IF_TYPE_AP
:
2135 sta_id
= iwl4965_hw_find_station(priv
, hdr
->addr1
);
2136 if (sta_id
!= IWL_INVALID_STATION
)
2138 return priv
->hw_setting
.bcast_sta_id
;
2140 /* If this frame is going out to an IBSS network, find the station,
2141 * or create a new station table entry */
2142 case IEEE80211_IF_TYPE_IBSS
:
2143 sta_id
= iwl4965_hw_find_station(priv
, hdr
->addr1
);
2144 if (sta_id
!= IWL_INVALID_STATION
)
2147 /* Create new station table entry */
2148 sta_id
= iwl4965_add_station_flags(priv
, hdr
->addr1
,
2149 0, CMD_ASYNC
, NULL
);
2151 if (sta_id
!= IWL_INVALID_STATION
)
2154 IWL_DEBUG_DROP("Station %s not in station map. "
2155 "Defaulting to broadcast...\n",
2156 print_mac(mac
, hdr
->addr1
));
2157 iwl_print_hex_dump(IWL_DL_DROP
, (u8
*) hdr
, sizeof(*hdr
));
2158 return priv
->hw_setting
.bcast_sta_id
;
2161 IWL_WARNING("Unknown mode of operation: %d", priv
->iw_mode
);
2162 return priv
->hw_setting
.bcast_sta_id
;
2167 * start REPLY_TX command process
2169 static int iwl4965_tx_skb(struct iwl_priv
*priv
,
2170 struct sk_buff
*skb
, struct ieee80211_tx_control
*ctl
)
2172 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
2173 struct iwl4965_tfd_frame
*tfd
;
2175 int txq_id
= ctl
->queue
;
2176 struct iwl4965_tx_queue
*txq
= NULL
;
2177 struct iwl4965_queue
*q
= NULL
;
2178 dma_addr_t phys_addr
;
2179 dma_addr_t txcmd_phys
;
2180 dma_addr_t scratch_phys
;
2181 struct iwl_cmd
*out_cmd
= NULL
;
2182 u16 len
, idx
, len_org
;
2183 u8 id
, hdr_len
, unicast
;
2188 u8 wait_write_ptr
= 0;
2189 unsigned long flags
;
2192 spin_lock_irqsave(&priv
->lock
, flags
);
2193 if (iwl_is_rfkill(priv
)) {
2194 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2199 IWL_DEBUG_DROP("Dropping - !priv->vif\n");
2203 if ((ctl
->tx_rate
->hw_value
& 0xFF) == IWL_INVALID_RATE
) {
2204 IWL_ERROR("ERROR: No TX rate available.\n");
2208 unicast
= !is_multicast_ether_addr(hdr
->addr1
);
2211 fc
= le16_to_cpu(hdr
->frame_control
);
2213 #ifdef CONFIG_IWLWIFI_DEBUG
2214 if (ieee80211_is_auth(fc
))
2215 IWL_DEBUG_TX("Sending AUTH frame\n");
2216 else if (ieee80211_is_assoc_request(fc
))
2217 IWL_DEBUG_TX("Sending ASSOC frame\n");
2218 else if (ieee80211_is_reassoc_request(fc
))
2219 IWL_DEBUG_TX("Sending REASSOC frame\n");
2222 /* drop all data frame if we are not associated */
2223 if (((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_DATA
) &&
2224 (!iwl_is_associated(priv
) ||
2225 ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && !priv
->assoc_id
) ||
2226 !priv
->assoc_station_added
)) {
2227 IWL_DEBUG_DROP("Dropping - !iwl_is_associated\n");
2231 spin_unlock_irqrestore(&priv
->lock
, flags
);
2233 hdr_len
= ieee80211_get_hdrlen(fc
);
2235 /* Find (or create) index into station table for destination station */
2236 sta_id
= iwl4965_get_sta_id(priv
, hdr
);
2237 if (sta_id
== IWL_INVALID_STATION
) {
2238 DECLARE_MAC_BUF(mac
);
2240 IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
2241 print_mac(mac
, hdr
->addr1
));
2245 IWL_DEBUG_RATE("station Id %d\n", sta_id
);
2247 qc
= ieee80211_get_qos_ctrl(hdr
);
2249 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2250 seq_number
= priv
->stations
[sta_id
].tid
[tid
].seq_number
&
2252 hdr
->seq_ctrl
= cpu_to_le16(seq_number
) |
2254 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG
));
2256 #ifdef CONFIG_IWL4965_HT
2257 /* aggregation is on for this <sta,tid> */
2258 if (ctl
->flags
& IEEE80211_TXCTL_AMPDU
)
2259 txq_id
= priv
->stations
[sta_id
].tid
[tid
].agg
.txq_id
;
2260 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
++;
2261 #endif /* CONFIG_IWL4965_HT */
2264 /* Descriptor for chosen Tx queue */
2265 txq
= &priv
->txq
[txq_id
];
2268 spin_lock_irqsave(&priv
->lock
, flags
);
2270 /* Set up first empty TFD within this queue's circular TFD buffer */
2271 tfd
= &txq
->bd
[q
->write_ptr
];
2272 memset(tfd
, 0, sizeof(*tfd
));
2273 control_flags
= (u32
*) tfd
;
2274 idx
= get_cmd_index(q
, q
->write_ptr
, 0);
2276 /* Set up driver data for this TFD */
2277 memset(&(txq
->txb
[q
->write_ptr
]), 0, sizeof(struct iwl4965_tx_info
));
2278 txq
->txb
[q
->write_ptr
].skb
[0] = skb
;
2279 memcpy(&(txq
->txb
[q
->write_ptr
].status
.control
),
2280 ctl
, sizeof(struct ieee80211_tx_control
));
2282 /* Set up first empty entry in queue's array of Tx/cmd buffers */
2283 out_cmd
= &txq
->cmd
[idx
];
2284 memset(&out_cmd
->hdr
, 0, sizeof(out_cmd
->hdr
));
2285 memset(&out_cmd
->cmd
.tx
, 0, sizeof(out_cmd
->cmd
.tx
));
2288 * Set up the Tx-command (not MAC!) header.
2289 * Store the chosen Tx queue and TFD index within the sequence field;
2290 * after Tx, uCode's Tx response will return this value so driver can
2291 * locate the frame within the tx queue and do post-tx processing.
2293 out_cmd
->hdr
.cmd
= REPLY_TX
;
2294 out_cmd
->hdr
.sequence
= cpu_to_le16((u16
)(QUEUE_TO_SEQ(txq_id
) |
2295 INDEX_TO_SEQ(q
->write_ptr
)));
2297 /* Copy MAC header from skb into command buffer */
2298 memcpy(out_cmd
->cmd
.tx
.hdr
, hdr
, hdr_len
);
2301 * Use the first empty entry in this queue's command buffer array
2302 * to contain the Tx command and MAC header concatenated together
2303 * (payload data will be in another buffer).
2304 * Size of this varies, due to varying MAC header length.
2305 * If end is not dword aligned, we'll have 2 extra bytes at the end
2306 * of the MAC header (device reads on dword boundaries).
2307 * We'll tell device about this padding later.
2309 len
= priv
->hw_setting
.tx_cmd_len
+
2310 sizeof(struct iwl_cmd_header
) + hdr_len
;
2313 len
= (len
+ 3) & ~3;
2320 /* Physical address of this Tx command's header (not MAC header!),
2321 * within command buffer array. */
2322 txcmd_phys
= txq
->dma_addr_cmd
+ sizeof(struct iwl_cmd
) * idx
+
2323 offsetof(struct iwl_cmd
, hdr
);
2325 /* Add buffer containing Tx command and MAC(!) header to TFD's
2327 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, txcmd_phys
, len
);
2329 if (!(ctl
->flags
& IEEE80211_TXCTL_DO_NOT_ENCRYPT
))
2330 iwl4965_build_tx_cmd_hwcrypto(priv
, ctl
, out_cmd
, skb
, sta_id
);
2332 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2333 * if any (802.11 null frames have no payload). */
2334 len
= skb
->len
- hdr_len
;
2336 phys_addr
= pci_map_single(priv
->pci_dev
, skb
->data
+ hdr_len
,
2337 len
, PCI_DMA_TODEVICE
);
2338 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, len
);
2341 /* Tell 4965 about any 2-byte padding after MAC header */
2343 out_cmd
->cmd
.tx
.tx_flags
|= TX_CMD_FLG_MH_PAD_MSK
;
2345 /* Total # bytes to be transmitted */
2346 len
= (u16
)skb
->len
;
2347 out_cmd
->cmd
.tx
.len
= cpu_to_le16(len
);
2349 /* TODO need this for burst mode later on */
2350 iwl4965_build_tx_cmd_basic(priv
, out_cmd
, ctl
, hdr
, unicast
, sta_id
);
2352 /* set is_hcca to 0; it probably will never be implemented */
2353 iwl4965_hw_build_tx_cmd_rate(priv
, out_cmd
, ctl
, hdr
, sta_id
, 0);
2355 iwl_update_tx_stats(priv
, fc
, len
);
2357 scratch_phys
= txcmd_phys
+ sizeof(struct iwl_cmd_header
) +
2358 offsetof(struct iwl4965_tx_cmd
, scratch
);
2359 out_cmd
->cmd
.tx
.dram_lsb_ptr
= cpu_to_le32(scratch_phys
);
2360 out_cmd
->cmd
.tx
.dram_msb_ptr
= iwl_get_dma_hi_address(scratch_phys
);
2362 if (!ieee80211_get_morefrag(hdr
)) {
2363 txq
->need_update
= 1;
2365 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2366 priv
->stations
[sta_id
].tid
[tid
].seq_number
= seq_number
;
2370 txq
->need_update
= 0;
2373 iwl_print_hex_dump(IWL_DL_TX
, out_cmd
->cmd
.payload
,
2374 sizeof(out_cmd
->cmd
.tx
));
2376 iwl_print_hex_dump(IWL_DL_TX
, (u8
*)out_cmd
->cmd
.tx
.hdr
,
2377 ieee80211_get_hdrlen(fc
));
2379 /* Set up entry for this TFD in Tx byte-count array */
2380 priv
->cfg
->ops
->lib
->txq_update_byte_cnt_tbl(priv
, txq
, len
);
2382 /* Tell device the write index *just past* this latest filled TFD */
2383 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
2384 rc
= iwl4965_tx_queue_update_write_ptr(priv
, txq
);
2385 spin_unlock_irqrestore(&priv
->lock
, flags
);
2390 if ((iwl4965_queue_space(q
) < q
->high_mark
)
2391 && priv
->mac80211_registered
) {
2392 if (wait_write_ptr
) {
2393 spin_lock_irqsave(&priv
->lock
, flags
);
2394 txq
->need_update
= 1;
2395 iwl4965_tx_queue_update_write_ptr(priv
, txq
);
2396 spin_unlock_irqrestore(&priv
->lock
, flags
);
2399 ieee80211_stop_queue(priv
->hw
, ctl
->queue
);
2405 spin_unlock_irqrestore(&priv
->lock
, flags
);
2410 static void iwl4965_set_rate(struct iwl_priv
*priv
)
2412 const struct ieee80211_supported_band
*hw
= NULL
;
2413 struct ieee80211_rate
*rate
;
2416 hw
= iwl4965_get_hw_mode(priv
, priv
->band
);
2418 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
2422 priv
->active_rate
= 0;
2423 priv
->active_rate_basic
= 0;
2425 for (i
= 0; i
< hw
->n_bitrates
; i
++) {
2426 rate
= &(hw
->bitrates
[i
]);
2427 if (rate
->hw_value
< IWL_RATE_COUNT
)
2428 priv
->active_rate
|= (1 << rate
->hw_value
);
2431 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
2432 priv
->active_rate
, priv
->active_rate_basic
);
2435 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
2436 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
2439 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
2440 priv
->staging_rxon
.cck_basic_rates
=
2441 ((priv
->active_rate_basic
&
2442 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
2444 priv
->staging_rxon
.cck_basic_rates
=
2445 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2447 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
2448 priv
->staging_rxon
.ofdm_basic_rates
=
2449 ((priv
->active_rate_basic
&
2450 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
2451 IWL_FIRST_OFDM_RATE
) & 0xFF;
2453 priv
->staging_rxon
.ofdm_basic_rates
=
2454 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2457 void iwl4965_radio_kill_sw(struct iwl_priv
*priv
, int disable_radio
)
2459 unsigned long flags
;
2461 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
2464 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
2465 disable_radio
? "OFF" : "ON");
2467 if (disable_radio
) {
2468 iwl4965_scan_cancel(priv
);
2469 /* FIXME: This is a workaround for AP */
2470 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
2471 spin_lock_irqsave(&priv
->lock
, flags
);
2472 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2473 CSR_UCODE_SW_BIT_RFKILL
);
2474 spin_unlock_irqrestore(&priv
->lock
, flags
);
2475 /* call the host command only if no hw rf-kill set */
2476 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
2477 iwl4965_send_card_state(priv
,
2478 CARD_STATE_CMD_DISABLE
,
2480 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2482 /* make sure mac80211 stop sending Tx frame */
2483 if (priv
->mac80211_registered
)
2484 ieee80211_stop_queues(priv
->hw
);
2489 spin_lock_irqsave(&priv
->lock
, flags
);
2490 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2492 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2493 spin_unlock_irqrestore(&priv
->lock
, flags
);
2498 spin_lock_irqsave(&priv
->lock
, flags
);
2499 iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
2500 if (!iwl_grab_nic_access(priv
))
2501 iwl_release_nic_access(priv
);
2502 spin_unlock_irqrestore(&priv
->lock
, flags
);
2504 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
2505 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2506 "disabled by HW switch\n");
2510 queue_work(priv
->workqueue
, &priv
->restart
);
2514 void iwl4965_set_decrypted_flag(struct iwl_priv
*priv
, struct sk_buff
*skb
,
2515 u32 decrypt_res
, struct ieee80211_rx_status
*stats
)
2518 le16_to_cpu(((struct ieee80211_hdr
*)skb
->data
)->frame_control
);
2520 if (priv
->active_rxon
.filter_flags
& RXON_FILTER_DIS_DECRYPT_MSK
)
2523 if (!(fc
& IEEE80211_FCTL_PROTECTED
))
2526 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res
);
2527 switch (decrypt_res
& RX_RES_STATUS_SEC_TYPE_MSK
) {
2528 case RX_RES_STATUS_SEC_TYPE_TKIP
:
2529 /* The uCode has got a bad phase 1 Key, pushes the packet.
2530 * Decryption will be done in SW. */
2531 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2532 RX_RES_STATUS_BAD_KEY_TTAK
)
2535 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2536 RX_RES_STATUS_BAD_ICV_MIC
)
2537 stats
->flag
|= RX_FLAG_MMIC_ERROR
;
2538 case RX_RES_STATUS_SEC_TYPE_WEP
:
2539 case RX_RES_STATUS_SEC_TYPE_CCMP
:
2540 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2541 RX_RES_STATUS_DECRYPT_OK
) {
2542 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
2543 stats
->flag
|= RX_FLAG_DECRYPTED
;
2553 #define IWL_PACKET_RETRY_TIME HZ
2555 int iwl4965_is_duplicate_packet(struct iwl_priv
*priv
, struct ieee80211_hdr
*header
)
2557 u16 sc
= le16_to_cpu(header
->seq_ctrl
);
2558 u16 seq
= (sc
& IEEE80211_SCTL_SEQ
) >> 4;
2559 u16 frag
= sc
& IEEE80211_SCTL_FRAG
;
2560 u16
*last_seq
, *last_frag
;
2561 unsigned long *last_time
;
2563 switch (priv
->iw_mode
) {
2564 case IEEE80211_IF_TYPE_IBSS
:{
2565 struct list_head
*p
;
2566 struct iwl4965_ibss_seq
*entry
= NULL
;
2567 u8
*mac
= header
->addr2
;
2568 int index
= mac
[5] & (IWL_IBSS_MAC_HASH_SIZE
- 1);
2570 __list_for_each(p
, &priv
->ibss_mac_hash
[index
]) {
2571 entry
= list_entry(p
, struct iwl4965_ibss_seq
, list
);
2572 if (!compare_ether_addr(entry
->mac
, mac
))
2575 if (p
== &priv
->ibss_mac_hash
[index
]) {
2576 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
2578 IWL_ERROR("Cannot malloc new mac entry\n");
2581 memcpy(entry
->mac
, mac
, ETH_ALEN
);
2582 entry
->seq_num
= seq
;
2583 entry
->frag_num
= frag
;
2584 entry
->packet_time
= jiffies
;
2585 list_add(&entry
->list
, &priv
->ibss_mac_hash
[index
]);
2588 last_seq
= &entry
->seq_num
;
2589 last_frag
= &entry
->frag_num
;
2590 last_time
= &entry
->packet_time
;
2593 case IEEE80211_IF_TYPE_STA
:
2594 last_seq
= &priv
->last_seq_num
;
2595 last_frag
= &priv
->last_frag_num
;
2596 last_time
= &priv
->last_packet_time
;
2601 if ((*last_seq
== seq
) &&
2602 time_after(*last_time
+ IWL_PACKET_RETRY_TIME
, jiffies
)) {
2603 if (*last_frag
== frag
)
2605 if (*last_frag
+ 1 != frag
)
2606 /* out-of-order fragment */
2612 *last_time
= jiffies
;
2619 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
2621 #include "iwl-spectrum.h"
2623 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
2624 #define BEACON_TIME_MASK_HIGH 0xFF000000
2625 #define TIME_UNIT 1024
2628 * extended beacon time format
2629 * time in usec will be changed into a 32-bit value in 8:24 format
2630 * the high 1 byte is the beacon counts
2631 * the lower 3 bytes is the time in usec within one beacon interval
2634 static u32
iwl4965_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
2638 u32 interval
= beacon_interval
* 1024;
2640 if (!interval
|| !usec
)
2643 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
2644 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
2646 return (quot
<< 24) + rem
;
2649 /* base is usually what we get from ucode with each received frame,
2650 * the same as HW timer counter counting down
2653 static __le32
iwl4965_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
2655 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
2656 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
2657 u32 interval
= beacon_interval
* TIME_UNIT
;
2658 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
2659 (addon
& BEACON_TIME_MASK_HIGH
);
2661 if (base_low
> addon_low
)
2662 res
+= base_low
- addon_low
;
2663 else if (base_low
< addon_low
) {
2664 res
+= interval
+ base_low
- addon_low
;
2669 return cpu_to_le32(res
);
2672 static int iwl4965_get_measurement(struct iwl_priv
*priv
,
2673 struct ieee80211_measurement_params
*params
,
2676 struct iwl4965_spectrum_cmd spectrum
;
2677 struct iwl4965_rx_packet
*res
;
2678 struct iwl_host_cmd cmd
= {
2679 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
2680 .data
= (void *)&spectrum
,
2681 .meta
.flags
= CMD_WANT_SKB
,
2683 u32 add_time
= le64_to_cpu(params
->start_time
);
2685 int spectrum_resp_status
;
2686 int duration
= le16_to_cpu(params
->duration
);
2688 if (iwl_is_associated(priv
))
2690 iwl4965_usecs_to_beacons(
2691 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
2692 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2694 memset(&spectrum
, 0, sizeof(spectrum
));
2696 spectrum
.channel_count
= cpu_to_le16(1);
2698 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
2699 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
2700 cmd
.len
= sizeof(spectrum
);
2701 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
2703 if (iwl_is_associated(priv
))
2704 spectrum
.start_time
=
2705 iwl4965_add_beacon_time(priv
->last_beacon_time
,
2707 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2709 spectrum
.start_time
= 0;
2711 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
2712 spectrum
.channels
[0].channel
= params
->channel
;
2713 spectrum
.channels
[0].type
= type
;
2714 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
2715 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
2716 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
2718 rc
= iwl_send_cmd_sync(priv
, &cmd
);
2722 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
2723 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
2724 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
2728 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
2729 switch (spectrum_resp_status
) {
2730 case 0: /* Command will be handled */
2731 if (res
->u
.spectrum
.id
!= 0xff) {
2733 ("Replaced existing measurement: %d\n",
2734 res
->u
.spectrum
.id
);
2735 priv
->measurement_status
&= ~MEASUREMENT_READY
;
2737 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
2741 case 1: /* Command will not be handled */
2746 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
2752 static void iwl4965_txstatus_to_ieee(struct iwl_priv
*priv
,
2753 struct iwl4965_tx_info
*tx_sta
)
2756 tx_sta
->status
.ack_signal
= 0;
2757 tx_sta
->status
.excessive_retries
= 0;
2758 tx_sta
->status
.queue_length
= 0;
2759 tx_sta
->status
.queue_number
= 0;
2762 ieee80211_tx_status_irqsafe(priv
->hw
,
2763 tx_sta
->skb
[0], &(tx_sta
->status
));
2765 ieee80211_tx_status(priv
->hw
,
2766 tx_sta
->skb
[0], &(tx_sta
->status
));
2768 tx_sta
->skb
[0] = NULL
;
2772 * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
2774 * When FW advances 'R' index, all entries between old and new 'R' index
2775 * need to be reclaimed. As result, some free space forms. If there is
2776 * enough free space (> low mark), wake the stack that feeds us.
2778 int iwl4965_tx_queue_reclaim(struct iwl_priv
*priv
, int txq_id
, int index
)
2780 struct iwl4965_tx_queue
*txq
= &priv
->txq
[txq_id
];
2781 struct iwl4965_queue
*q
= &txq
->q
;
2784 if ((index
>= q
->n_bd
) || (x2_queue_used(q
, index
) == 0)) {
2785 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
2786 "is out of range [0-%d] %d %d.\n", txq_id
,
2787 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
2791 for (index
= iwl_queue_inc_wrap(index
, q
->n_bd
);
2792 q
->read_ptr
!= index
;
2793 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
2794 if (txq_id
!= IWL_CMD_QUEUE_NUM
) {
2795 iwl4965_txstatus_to_ieee(priv
,
2796 &(txq
->txb
[txq
->q
.read_ptr
]));
2797 iwl4965_hw_txq_free_tfd(priv
, txq
);
2798 } else if (nfreed
> 1) {
2799 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index
,
2800 q
->write_ptr
, q
->read_ptr
);
2801 queue_work(priv
->workqueue
, &priv
->restart
);
2806 /* if (iwl4965_queue_space(q) > q->low_mark && (txq_id >= 0) &&
2807 (txq_id != IWL_CMD_QUEUE_NUM) &&
2808 priv->mac80211_registered)
2809 ieee80211_wake_queue(priv->hw, txq_id); */
2815 static int iwl4965_is_tx_success(u32 status
)
2817 status
&= TX_STATUS_MSK
;
2818 return (status
== TX_STATUS_SUCCESS
)
2819 || (status
== TX_STATUS_DIRECT_DONE
);
2822 /******************************************************************************
2824 * Generic RX handler implementations
2826 ******************************************************************************/
2827 #ifdef CONFIG_IWL4965_HT
2829 static inline int iwl4965_get_ra_sta_id(struct iwl_priv
*priv
,
2830 struct ieee80211_hdr
*hdr
)
2832 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)
2835 u8
*da
= ieee80211_get_DA(hdr
);
2836 return iwl4965_hw_find_station(priv
, da
);
2840 static struct ieee80211_hdr
*iwl4965_tx_queue_get_hdr(
2841 struct iwl_priv
*priv
, int txq_id
, int idx
)
2843 if (priv
->txq
[txq_id
].txb
[idx
].skb
[0])
2844 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
2845 txb
[idx
].skb
[0]->data
;
2849 static inline u32
iwl4965_get_scd_ssn(struct iwl4965_tx_resp
*tx_resp
)
2851 __le32
*scd_ssn
= (__le32
*)((u32
*)&tx_resp
->status
+
2852 tx_resp
->frame_count
);
2853 return le32_to_cpu(*scd_ssn
) & MAX_SN
;
2858 * iwl4965_tx_status_reply_tx - Handle Tx rspnse for frames in aggregation queue
2860 static int iwl4965_tx_status_reply_tx(struct iwl_priv
*priv
,
2861 struct iwl4965_ht_agg
*agg
,
2862 struct iwl4965_tx_resp_agg
*tx_resp
,
2866 struct agg_tx_status
*frame_status
= &tx_resp
->status
;
2867 struct ieee80211_tx_status
*tx_status
= NULL
;
2868 struct ieee80211_hdr
*hdr
= NULL
;
2873 if (agg
->wait_for_ba
)
2874 IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
2876 agg
->frame_count
= tx_resp
->frame_count
;
2877 agg
->start_idx
= start_idx
;
2878 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
2881 /* # frames attempted by Tx command */
2882 if (agg
->frame_count
== 1) {
2883 /* Only one frame was attempted; no block-ack will arrive */
2884 status
= le16_to_cpu(frame_status
[0].status
);
2885 seq
= le16_to_cpu(frame_status
[0].sequence
);
2886 idx
= SEQ_TO_INDEX(seq
);
2887 txq_id
= SEQ_TO_QUEUE(seq
);
2889 /* FIXME: code repetition */
2890 IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
2891 agg
->frame_count
, agg
->start_idx
, idx
);
2893 tx_status
= &(priv
->txq
[txq_id
].txb
[idx
].status
);
2894 tx_status
->retry_count
= tx_resp
->failure_frame
;
2895 tx_status
->queue_number
= status
& 0xff;
2896 tx_status
->queue_length
= tx_resp
->failure_rts
;
2897 tx_status
->control
.flags
&= ~IEEE80211_TXCTL_AMPDU
;
2898 tx_status
->flags
= iwl4965_is_tx_success(status
)?
2899 IEEE80211_TX_STATUS_ACK
: 0;
2900 iwl4965_hwrate_to_tx_control(priv
,
2901 le32_to_cpu(tx_resp
->rate_n_flags
),
2902 &tx_status
->control
);
2903 /* FIXME: code repetition end */
2905 IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
2906 status
& 0xff, tx_resp
->failure_frame
);
2907 IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n",
2908 iwl4965_hw_get_rate_n_flags(tx_resp
->rate_n_flags
));
2910 agg
->wait_for_ba
= 0;
2912 /* Two or more frames were attempted; expect block-ack */
2914 int start
= agg
->start_idx
;
2916 /* Construct bit-map of pending frames within Tx window */
2917 for (i
= 0; i
< agg
->frame_count
; i
++) {
2919 status
= le16_to_cpu(frame_status
[i
].status
);
2920 seq
= le16_to_cpu(frame_status
[i
].sequence
);
2921 idx
= SEQ_TO_INDEX(seq
);
2922 txq_id
= SEQ_TO_QUEUE(seq
);
2924 if (status
& (AGG_TX_STATE_FEW_BYTES_MSK
|
2925 AGG_TX_STATE_ABORT_MSK
))
2928 IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
2929 agg
->frame_count
, txq_id
, idx
);
2931 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, idx
);
2933 sc
= le16_to_cpu(hdr
->seq_ctrl
);
2934 if (idx
!= (SEQ_TO_SN(sc
) & 0xff)) {
2935 IWL_ERROR("BUG_ON idx doesn't match seq control"
2936 " idx=%d, seq_idx=%d, seq=%d\n",
2942 IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n",
2943 i
, idx
, SEQ_TO_SN(sc
));
2947 sh
= (start
- idx
) + 0xff;
2948 bitmap
= bitmap
<< sh
;
2951 } else if (sh
< -64)
2952 sh
= 0xff - (start
- idx
);
2956 bitmap
= bitmap
<< sh
;
2959 bitmap
|= (1 << sh
);
2960 IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n",
2961 start
, (u32
)(bitmap
& 0xFFFFFFFF));
2964 agg
->bitmap
= bitmap
;
2965 agg
->start_idx
= start
;
2966 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
2967 IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n",
2968 agg
->frame_count
, agg
->start_idx
,
2969 (unsigned long long)agg
->bitmap
);
2972 agg
->wait_for_ba
= 1;
2979 * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response
2981 static void iwl4965_rx_reply_tx(struct iwl_priv
*priv
,
2982 struct iwl4965_rx_mem_buffer
*rxb
)
2984 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
2985 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
2986 int txq_id
= SEQ_TO_QUEUE(sequence
);
2987 int index
= SEQ_TO_INDEX(sequence
);
2988 struct iwl4965_tx_queue
*txq
= &priv
->txq
[txq_id
];
2989 struct ieee80211_tx_status
*tx_status
;
2990 struct iwl4965_tx_resp
*tx_resp
= (void *)&pkt
->u
.raw
[0];
2991 u32 status
= le32_to_cpu(tx_resp
->status
);
2992 #ifdef CONFIG_IWL4965_HT
2993 int tid
= MAX_TID_COUNT
, sta_id
= IWL_INVALID_STATION
;
2994 struct ieee80211_hdr
*hdr
;
2998 if ((index
>= txq
->q
.n_bd
) || (x2_queue_used(&txq
->q
, index
) == 0)) {
2999 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
3000 "is out of range [0-%d] %d %d\n", txq_id
,
3001 index
, txq
->q
.n_bd
, txq
->q
.write_ptr
,
3006 #ifdef CONFIG_IWL4965_HT
3007 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, index
);
3008 qc
= ieee80211_get_qos_ctrl(hdr
);
3011 tid
= le16_to_cpu(*qc
) & 0xf;
3013 sta_id
= iwl4965_get_ra_sta_id(priv
, hdr
);
3014 if (txq
->sched_retry
&& unlikely(sta_id
== IWL_INVALID_STATION
)) {
3015 IWL_ERROR("Station not known\n");
3019 if (txq
->sched_retry
) {
3020 const u32 scd_ssn
= iwl4965_get_scd_ssn(tx_resp
);
3021 struct iwl4965_ht_agg
*agg
= NULL
;
3026 agg
= &priv
->stations
[sta_id
].tid
[tid
].agg
;
3028 iwl4965_tx_status_reply_tx(priv
, agg
,
3029 (struct iwl4965_tx_resp_agg
*)tx_resp
, index
);
3031 if ((tx_resp
->frame_count
== 1) &&
3032 !iwl4965_is_tx_success(status
)) {
3033 /* TODO: send BAR */
3036 if (txq
->q
.read_ptr
!= (scd_ssn
& 0xff)) {
3038 index
= iwl_queue_dec_wrap(scd_ssn
& 0xff, txq
->q
.n_bd
);
3039 IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
3040 "%d index %d\n", scd_ssn
, index
);
3041 freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3042 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
3044 if (iwl4965_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
3045 txq_id
>= 0 && priv
->mac80211_registered
&&
3046 agg
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
3047 ieee80211_wake_queue(priv
->hw
, txq_id
);
3049 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
3052 #endif /* CONFIG_IWL4965_HT */
3053 tx_status
= &(txq
->txb
[txq
->q
.read_ptr
].status
);
3055 tx_status
->retry_count
= tx_resp
->failure_frame
;
3056 tx_status
->queue_number
= status
;
3057 tx_status
->queue_length
= tx_resp
->bt_kill_count
;
3058 tx_status
->queue_length
|= tx_resp
->failure_rts
;
3060 iwl4965_is_tx_success(status
) ? IEEE80211_TX_STATUS_ACK
: 0;
3061 iwl4965_hwrate_to_tx_control(priv
, le32_to_cpu(tx_resp
->rate_n_flags
),
3062 &tx_status
->control
);
3064 IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags 0x%x "
3065 "retries %d\n", txq_id
, iwl4965_get_tx_fail_reason(status
),
3066 status
, le32_to_cpu(tx_resp
->rate_n_flags
),
3067 tx_resp
->failure_frame
);
3069 IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index
);
3071 int freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3072 #ifdef CONFIG_IWL4965_HT
3073 if (tid
!= MAX_TID_COUNT
)
3074 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
3075 if (iwl4965_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
3077 priv
->mac80211_registered
)
3078 ieee80211_wake_queue(priv
->hw
, txq_id
);
3079 if (tid
!= MAX_TID_COUNT
)
3080 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
3083 #ifdef CONFIG_IWL4965_HT
3085 #endif /* CONFIG_IWL4965_HT */
3087 if (iwl_check_bits(status
, TX_ABORT_REQUIRED_MSK
))
3088 IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
3092 static void iwl4965_rx_reply_alive(struct iwl_priv
*priv
,
3093 struct iwl4965_rx_mem_buffer
*rxb
)
3095 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3096 struct iwl4965_alive_resp
*palive
;
3097 struct delayed_work
*pwork
;
3099 palive
= &pkt
->u
.alive_frame
;
3101 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
3103 palive
->is_valid
, palive
->ver_type
,
3104 palive
->ver_subtype
);
3106 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
3107 IWL_DEBUG_INFO("Initialization Alive received.\n");
3108 memcpy(&priv
->card_alive_init
,
3109 &pkt
->u
.alive_frame
,
3110 sizeof(struct iwl4965_init_alive_resp
));
3111 pwork
= &priv
->init_alive_start
;
3113 IWL_DEBUG_INFO("Runtime Alive received.\n");
3114 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
3115 sizeof(struct iwl4965_alive_resp
));
3116 pwork
= &priv
->alive_start
;
3119 /* We delay the ALIVE response by 5ms to
3120 * give the HW RF Kill time to activate... */
3121 if (palive
->is_valid
== UCODE_VALID_OK
)
3122 queue_delayed_work(priv
->workqueue
, pwork
,
3123 msecs_to_jiffies(5));
3125 IWL_WARNING("uCode did not respond OK.\n");
3128 static void iwl4965_rx_reply_add_sta(struct iwl_priv
*priv
,
3129 struct iwl4965_rx_mem_buffer
*rxb
)
3131 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3133 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
3137 static void iwl4965_rx_reply_error(struct iwl_priv
*priv
,
3138 struct iwl4965_rx_mem_buffer
*rxb
)
3140 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3142 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
3143 "seq 0x%04X ser 0x%08X\n",
3144 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
3145 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
3146 pkt
->u
.err_resp
.cmd_id
,
3147 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
3148 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
3151 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
3153 static void iwl4965_rx_csa(struct iwl_priv
*priv
, struct iwl4965_rx_mem_buffer
*rxb
)
3155 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3156 struct iwl4965_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
3157 struct iwl4965_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
3158 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
3159 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
3160 rxon
->channel
= csa
->channel
;
3161 priv
->staging_rxon
.channel
= csa
->channel
;
3164 static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv
*priv
,
3165 struct iwl4965_rx_mem_buffer
*rxb
)
3167 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
3168 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3169 struct iwl4965_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
3171 if (!report
->state
) {
3172 IWL_DEBUG(IWL_DL_11H
| IWL_DL_INFO
,
3173 "Spectrum Measure Notification: Start\n");
3177 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
3178 priv
->measurement_status
|= MEASUREMENT_READY
;
3182 static void iwl4965_rx_pm_sleep_notif(struct iwl_priv
*priv
,
3183 struct iwl4965_rx_mem_buffer
*rxb
)
3185 #ifdef CONFIG_IWLWIFI_DEBUG
3186 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3187 struct iwl4965_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
3188 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
3189 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
3193 static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
3194 struct iwl4965_rx_mem_buffer
*rxb
)
3196 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3197 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
3198 "notification for %s:\n",
3199 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
3200 iwl_print_hex_dump(IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
3203 static void iwl4965_bg_beacon_update(struct work_struct
*work
)
3205 struct iwl_priv
*priv
=
3206 container_of(work
, struct iwl_priv
, beacon_update
);
3207 struct sk_buff
*beacon
;
3209 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
3210 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
, NULL
);
3213 IWL_ERROR("update beacon failed\n");
3217 mutex_lock(&priv
->mutex
);
3218 /* new beacon skb is allocated every time; dispose previous.*/
3219 if (priv
->ibss_beacon
)
3220 dev_kfree_skb(priv
->ibss_beacon
);
3222 priv
->ibss_beacon
= beacon
;
3223 mutex_unlock(&priv
->mutex
);
3225 iwl4965_send_beacon_cmd(priv
);
3228 static void iwl4965_rx_beacon_notif(struct iwl_priv
*priv
,
3229 struct iwl4965_rx_mem_buffer
*rxb
)
3231 #ifdef CONFIG_IWLWIFI_DEBUG
3232 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3233 struct iwl4965_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
3234 u8 rate
= iwl4965_hw_get_rate(beacon
->beacon_notify_hdr
.rate_n_flags
);
3236 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
3237 "tsf %d %d rate %d\n",
3238 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
3239 beacon
->beacon_notify_hdr
.failure_frame
,
3240 le32_to_cpu(beacon
->ibss_mgr_status
),
3241 le32_to_cpu(beacon
->high_tsf
),
3242 le32_to_cpu(beacon
->low_tsf
), rate
);
3245 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
3246 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
3247 queue_work(priv
->workqueue
, &priv
->beacon_update
);
3250 /* Service response to REPLY_SCAN_CMD (0x80) */
3251 static void iwl4965_rx_reply_scan(struct iwl_priv
*priv
,
3252 struct iwl4965_rx_mem_buffer
*rxb
)
3254 #ifdef CONFIG_IWLWIFI_DEBUG
3255 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3256 struct iwl4965_scanreq_notification
*notif
=
3257 (struct iwl4965_scanreq_notification
*)pkt
->u
.raw
;
3259 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
3263 /* Service SCAN_START_NOTIFICATION (0x82) */
3264 static void iwl4965_rx_scan_start_notif(struct iwl_priv
*priv
,
3265 struct iwl4965_rx_mem_buffer
*rxb
)
3267 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3268 struct iwl4965_scanstart_notification
*notif
=
3269 (struct iwl4965_scanstart_notification
*)pkt
->u
.raw
;
3270 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
3271 IWL_DEBUG_SCAN("Scan start: "
3273 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
3275 notif
->band
? "bg" : "a",
3277 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
3280 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
3281 static void iwl4965_rx_scan_results_notif(struct iwl_priv
*priv
,
3282 struct iwl4965_rx_mem_buffer
*rxb
)
3284 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3285 struct iwl4965_scanresults_notification
*notif
=
3286 (struct iwl4965_scanresults_notification
*)pkt
->u
.raw
;
3288 IWL_DEBUG_SCAN("Scan ch.res: "
3290 "(TSF: 0x%08X:%08X) - %d "
3291 "elapsed=%lu usec (%dms since last)\n",
3293 notif
->band
? "bg" : "a",
3294 le32_to_cpu(notif
->tsf_high
),
3295 le32_to_cpu(notif
->tsf_low
),
3296 le32_to_cpu(notif
->statistics
[0]),
3297 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
3298 jiffies_to_msecs(elapsed_jiffies
3299 (priv
->last_scan_jiffies
, jiffies
)));
3301 priv
->last_scan_jiffies
= jiffies
;
3302 priv
->next_scan_jiffies
= 0;
3305 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
3306 static void iwl4965_rx_scan_complete_notif(struct iwl_priv
*priv
,
3307 struct iwl4965_rx_mem_buffer
*rxb
)
3309 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3310 struct iwl4965_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
3312 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
3313 scan_notif
->scanned_channels
,
3314 scan_notif
->tsf_low
,
3315 scan_notif
->tsf_high
, scan_notif
->status
);
3317 /* The HW is no longer scanning */
3318 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
3320 /* The scan completion notification came in, so kill that timer... */
3321 cancel_delayed_work(&priv
->scan_check
);
3323 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
3324 (priv
->scan_bands
== 2) ? "2.4" : "5.2",
3325 jiffies_to_msecs(elapsed_jiffies
3326 (priv
->scan_pass_start
, jiffies
)));
3328 /* Remove this scanned band from the list
3329 * of pending bands to scan */
3332 /* If a request to abort was given, or the scan did not succeed
3333 * then we reset the scan state machine and terminate,
3334 * re-queuing another scan if one has been requested */
3335 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3336 IWL_DEBUG_INFO("Aborted scan completed.\n");
3337 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
3339 /* If there are more bands on this scan pass reschedule */
3340 if (priv
->scan_bands
> 0)
3344 priv
->last_scan_jiffies
= jiffies
;
3345 priv
->next_scan_jiffies
= 0;
3346 IWL_DEBUG_INFO("Setting scan to off\n");
3348 clear_bit(STATUS_SCANNING
, &priv
->status
);
3350 IWL_DEBUG_INFO("Scan took %dms\n",
3351 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
3353 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3358 priv
->scan_pass_start
= jiffies
;
3359 queue_work(priv
->workqueue
, &priv
->request_scan
);
3362 /* Handle notification from uCode that card's power state is changing
3363 * due to software, hardware, or critical temperature RFKILL */
3364 static void iwl4965_rx_card_state_notif(struct iwl_priv
*priv
,
3365 struct iwl4965_rx_mem_buffer
*rxb
)
3367 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3368 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
3369 unsigned long status
= priv
->status
;
3371 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
3372 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
3373 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
3375 if (flags
& (SW_CARD_DISABLED
| HW_CARD_DISABLED
|
3376 RF_CARD_DISABLED
)) {
3378 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3379 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3381 if (!iwl_grab_nic_access(priv
)) {
3383 priv
, HBUS_TARG_MBX_C
,
3384 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
3386 iwl_release_nic_access(priv
);
3389 if (!(flags
& RXON_CARD_DISABLED
)) {
3390 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
3391 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3392 if (!iwl_grab_nic_access(priv
)) {
3394 priv
, HBUS_TARG_MBX_C
,
3395 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
3397 iwl_release_nic_access(priv
);
3401 if (flags
& RF_CARD_DISABLED
) {
3402 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3403 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
3404 iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
3405 if (!iwl_grab_nic_access(priv
))
3406 iwl_release_nic_access(priv
);
3410 if (flags
& HW_CARD_DISABLED
)
3411 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3413 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3416 if (flags
& SW_CARD_DISABLED
)
3417 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3419 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3421 if (!(flags
& RXON_CARD_DISABLED
))
3422 iwl4965_scan_cancel(priv
);
3424 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
3425 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
3426 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
3427 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
3428 queue_work(priv
->workqueue
, &priv
->rf_kill
);
3430 wake_up_interruptible(&priv
->wait_command_queue
);
3434 * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
3436 * Setup the RX handlers for each of the reply types sent from the uCode
3439 * This function chains into the hardware specific files for them to setup
3440 * any hardware specific handlers as well.
3442 static void iwl4965_setup_rx_handlers(struct iwl_priv
*priv
)
3444 priv
->rx_handlers
[REPLY_ALIVE
] = iwl4965_rx_reply_alive
;
3445 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl4965_rx_reply_add_sta
;
3446 priv
->rx_handlers
[REPLY_ERROR
] = iwl4965_rx_reply_error
;
3447 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl4965_rx_csa
;
3448 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
3449 iwl4965_rx_spectrum_measure_notif
;
3450 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl4965_rx_pm_sleep_notif
;
3451 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
3452 iwl4965_rx_pm_debug_statistics_notif
;
3453 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl4965_rx_beacon_notif
;
3456 * The same handler is used for both the REPLY to a discrete
3457 * statistics request from the host as well as for the periodic
3458 * statistics notifications (after received beacons) from the uCode.
3460 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl4965_hw_rx_statistics
;
3461 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl4965_hw_rx_statistics
;
3463 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl4965_rx_reply_scan
;
3464 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl4965_rx_scan_start_notif
;
3465 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
3466 iwl4965_rx_scan_results_notif
;
3467 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
3468 iwl4965_rx_scan_complete_notif
;
3469 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl4965_rx_card_state_notif
;
3470 priv
->rx_handlers
[REPLY_TX
] = iwl4965_rx_reply_tx
;
3472 /* Set up hardware specific Rx handlers */
3473 iwl4965_hw_rx_handler_setup(priv
);
3477 * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3478 * @rxb: Rx buffer to reclaim
3480 * If an Rx buffer has an async callback associated with it the callback
3481 * will be executed. The attached skb (if present) will only be freed
3482 * if the callback returns 1
3484 static void iwl4965_tx_cmd_complete(struct iwl_priv
*priv
,
3485 struct iwl4965_rx_mem_buffer
*rxb
)
3487 struct iwl4965_rx_packet
*pkt
= (struct iwl4965_rx_packet
*)rxb
->skb
->data
;
3488 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3489 int txq_id
= SEQ_TO_QUEUE(sequence
);
3490 int index
= SEQ_TO_INDEX(sequence
);
3491 int huge
= sequence
& SEQ_HUGE_FRAME
;
3493 struct iwl_cmd
*cmd
;
3495 /* If a Tx command is being handled and it isn't in the actual
3496 * command queue then there a command routing bug has been introduced
3497 * in the queue management code. */
3498 if (txq_id
!= IWL_CMD_QUEUE_NUM
)
3499 IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
3500 txq_id
, pkt
->hdr
.cmd
);
3501 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
3503 cmd_index
= get_cmd_index(&priv
->txq
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
3504 cmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
3506 /* Input error checking is done when commands are added to queue. */
3507 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
3508 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
3510 } else if (cmd
->meta
.u
.callback
&&
3511 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
3514 iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3516 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
3517 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
3518 wake_up_interruptible(&priv
->wait_command_queue
);
3522 /************************** RX-FUNCTIONS ****************************/
3524 * Rx theory of operation
3526 * Driver allocates a circular buffer of Receive Buffer Descriptors (RBDs),
3527 * each of which point to Receive Buffers to be filled by 4965. These get
3528 * used not only for Rx frames, but for any command response or notification
3529 * from the 4965. The driver and 4965 manage the Rx buffers by means
3530 * of indexes into the circular buffer.
3533 * The host/firmware share two index registers for managing the Rx buffers.
3535 * The READ index maps to the first position that the firmware may be writing
3536 * to -- the driver can read up to (but not including) this position and get
3538 * The READ index is managed by the firmware once the card is enabled.
3540 * The WRITE index maps to the last position the driver has read from -- the
3541 * position preceding WRITE is the last slot the firmware can place a packet.
3543 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
3546 * During initialization, the host sets up the READ queue position to the first
3547 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3549 * When the firmware places a packet in a buffer, it will advance the READ index
3550 * and fire the RX interrupt. The driver can then query the READ index and
3551 * process as many packets as possible, moving the WRITE index forward as it
3552 * resets the Rx queue buffers with new memory.
3554 * The management in the driver is as follows:
3555 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
3556 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
3557 * to replenish the iwl->rxq->rx_free.
3558 * + In iwl4965_rx_replenish (scheduled) if 'processed' != 'read' then the
3559 * iwl->rxq is replenished and the READ INDEX is updated (updating the
3560 * 'processed' and 'read' driver indexes as well)
3561 * + A received packet is processed and handed to the kernel network stack,
3562 * detached from the iwl->rxq. The driver 'processed' index is updated.
3563 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
3564 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
3565 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
3566 * were enough free buffers and RX_STALLED is set it is cleared.
3571 * iwl4965_rx_queue_alloc() Allocates rx_free
3572 * iwl4965_rx_replenish() Replenishes rx_free list from rx_used, and calls
3573 * iwl4965_rx_queue_restock
3574 * iwl4965_rx_queue_restock() Moves available buffers from rx_free into Rx
3575 * queue, updates firmware pointers, and updates
3576 * the WRITE index. If insufficient rx_free buffers
3577 * are available, schedules iwl4965_rx_replenish
3579 * -- enable interrupts --
3580 * ISR - iwl4965_rx() Detach iwl4965_rx_mem_buffers from pool up to the
3581 * READ INDEX, detaching the SKB from the pool.
3582 * Moves the packet buffer from queue to rx_used.
3583 * Calls iwl4965_rx_queue_restock to refill any empty
3590 * iwl4965_rx_queue_space - Return number of free slots available in queue.
3592 static int iwl4965_rx_queue_space(const struct iwl4965_rx_queue
*q
)
3594 int s
= q
->read
- q
->write
;
3597 /* keep some buffer to not confuse full and empty queue */
3605 * iwl4965_rx_queue_update_write_ptr - Update the write pointer for the RX queue
3607 int iwl4965_rx_queue_update_write_ptr(struct iwl_priv
*priv
, struct iwl4965_rx_queue
*q
)
3611 unsigned long flags
;
3613 spin_lock_irqsave(&q
->lock
, flags
);
3615 if (q
->need_update
== 0)
3618 /* If power-saving is in use, make sure device is awake */
3619 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
3620 reg
= iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
3622 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
3623 iwl_set_bit(priv
, CSR_GP_CNTRL
,
3624 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3628 rc
= iwl_grab_nic_access(priv
);
3632 /* Device expects a multiple of 8 */
3633 iwl_write_direct32(priv
, FH_RSCSR_CHNL0_WPTR
,
3635 iwl_release_nic_access(priv
);
3637 /* Else device is assumed to be awake */
3639 /* Device expects a multiple of 8 */
3640 iwl_write32(priv
, FH_RSCSR_CHNL0_WPTR
, q
->write
& ~0x7);
3646 spin_unlock_irqrestore(&q
->lock
, flags
);
3651 * iwl4965_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
3653 static inline __le32
iwl4965_dma_addr2rbd_ptr(struct iwl_priv
*priv
,
3654 dma_addr_t dma_addr
)
3656 return cpu_to_le32((u32
)(dma_addr
>> 8));
3661 * iwl4965_rx_queue_restock - refill RX queue from pre-allocated pool
3663 * If there are slots in the RX queue that need to be restocked,
3664 * and we have free pre-allocated buffers, fill the ranks as much
3665 * as we can, pulling from rx_free.
3667 * This moves the 'write' index forward to catch up with 'processed', and
3668 * also updates the memory address in the firmware to reference the new
3671 static int iwl4965_rx_queue_restock(struct iwl_priv
*priv
)
3673 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
3674 struct list_head
*element
;
3675 struct iwl4965_rx_mem_buffer
*rxb
;
3676 unsigned long flags
;
3679 spin_lock_irqsave(&rxq
->lock
, flags
);
3680 write
= rxq
->write
& ~0x7;
3681 while ((iwl4965_rx_queue_space(rxq
) > 0) && (rxq
->free_count
)) {
3682 /* Get next free Rx buffer, remove from free list */
3683 element
= rxq
->rx_free
.next
;
3684 rxb
= list_entry(element
, struct iwl4965_rx_mem_buffer
, list
);
3687 /* Point to Rx buffer via next RBD in circular buffer */
3688 rxq
->bd
[rxq
->write
] = iwl4965_dma_addr2rbd_ptr(priv
, rxb
->dma_addr
);
3689 rxq
->queue
[rxq
->write
] = rxb
;
3690 rxq
->write
= (rxq
->write
+ 1) & RX_QUEUE_MASK
;
3693 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3694 /* If the pre-allocated buffer pool is dropping low, schedule to
3696 if (rxq
->free_count
<= RX_LOW_WATERMARK
)
3697 queue_work(priv
->workqueue
, &priv
->rx_replenish
);
3700 /* If we've added more space for the firmware to place data, tell it.
3701 * Increment device's write pointer in multiples of 8. */
3702 if ((write
!= (rxq
->write
& ~0x7))
3703 || (abs(rxq
->write
- rxq
->read
) > 7)) {
3704 spin_lock_irqsave(&rxq
->lock
, flags
);
3705 rxq
->need_update
= 1;
3706 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3707 rc
= iwl4965_rx_queue_update_write_ptr(priv
, rxq
);
3716 * iwl4965_rx_replenish - Move all used packet from rx_used to rx_free
3718 * When moving to rx_free an SKB is allocated for the slot.
3720 * Also restock the Rx queue via iwl4965_rx_queue_restock.
3721 * This is called as a scheduled work item (except for during initialization)
3723 static void iwl4965_rx_allocate(struct iwl_priv
*priv
)
3725 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
3726 struct list_head
*element
;
3727 struct iwl4965_rx_mem_buffer
*rxb
;
3728 unsigned long flags
;
3729 spin_lock_irqsave(&rxq
->lock
, flags
);
3730 while (!list_empty(&rxq
->rx_used
)) {
3731 element
= rxq
->rx_used
.next
;
3732 rxb
= list_entry(element
, struct iwl4965_rx_mem_buffer
, list
);
3734 /* Alloc a new receive buffer */
3736 alloc_skb(priv
->hw_setting
.rx_buf_size
,
3737 __GFP_NOWARN
| GFP_ATOMIC
);
3739 if (net_ratelimit())
3740 printk(KERN_CRIT DRV_NAME
3741 ": Can not allocate SKB buffers\n");
3742 /* We don't reschedule replenish work here -- we will
3743 * call the restock method and if it still needs
3744 * more buffers it will schedule replenish */
3747 priv
->alloc_rxb_skb
++;
3750 /* Get physical address of RB/SKB */
3752 pci_map_single(priv
->pci_dev
, rxb
->skb
->data
,
3753 priv
->hw_setting
.rx_buf_size
, PCI_DMA_FROMDEVICE
);
3754 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
3757 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3761 * this should be called while priv->lock is locked
3763 static void __iwl4965_rx_replenish(void *data
)
3765 struct iwl_priv
*priv
= data
;
3767 iwl4965_rx_allocate(priv
);
3768 iwl4965_rx_queue_restock(priv
);
3772 void iwl4965_rx_replenish(void *data
)
3774 struct iwl_priv
*priv
= data
;
3775 unsigned long flags
;
3777 iwl4965_rx_allocate(priv
);
3779 spin_lock_irqsave(&priv
->lock
, flags
);
3780 iwl4965_rx_queue_restock(priv
);
3781 spin_unlock_irqrestore(&priv
->lock
, flags
);
3784 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
3785 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
3786 * This free routine walks the list of POOL entries and if SKB is set to
3787 * non NULL it is unmapped and freed
3789 static void iwl4965_rx_queue_free(struct iwl_priv
*priv
, struct iwl4965_rx_queue
*rxq
)
3792 for (i
= 0; i
< RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
; i
++) {
3793 if (rxq
->pool
[i
].skb
!= NULL
) {
3794 pci_unmap_single(priv
->pci_dev
,
3795 rxq
->pool
[i
].dma_addr
,
3796 priv
->hw_setting
.rx_buf_size
,
3797 PCI_DMA_FROMDEVICE
);
3798 dev_kfree_skb(rxq
->pool
[i
].skb
);
3802 pci_free_consistent(priv
->pci_dev
, 4 * RX_QUEUE_SIZE
, rxq
->bd
,
3807 int iwl4965_rx_queue_alloc(struct iwl_priv
*priv
)
3809 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
3810 struct pci_dev
*dev
= priv
->pci_dev
;
3813 spin_lock_init(&rxq
->lock
);
3814 INIT_LIST_HEAD(&rxq
->rx_free
);
3815 INIT_LIST_HEAD(&rxq
->rx_used
);
3817 /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
3818 rxq
->bd
= pci_alloc_consistent(dev
, 4 * RX_QUEUE_SIZE
, &rxq
->dma_addr
);
3822 /* Fill the rx_used queue with _all_ of the Rx buffers */
3823 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++)
3824 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3826 /* Set us so that we have processed and used all buffers, but have
3827 * not restocked the Rx queue with fresh buffers */
3828 rxq
->read
= rxq
->write
= 0;
3829 rxq
->free_count
= 0;
3830 rxq
->need_update
= 0;
3834 void iwl4965_rx_queue_reset(struct iwl_priv
*priv
, struct iwl4965_rx_queue
*rxq
)
3836 unsigned long flags
;
3838 spin_lock_irqsave(&rxq
->lock
, flags
);
3839 INIT_LIST_HEAD(&rxq
->rx_free
);
3840 INIT_LIST_HEAD(&rxq
->rx_used
);
3841 /* Fill the rx_used queue with _all_ of the Rx buffers */
3842 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++) {
3843 /* In the reset function, these buffers may have been allocated
3844 * to an SKB, so we need to unmap and free potential storage */
3845 if (rxq
->pool
[i
].skb
!= NULL
) {
3846 pci_unmap_single(priv
->pci_dev
,
3847 rxq
->pool
[i
].dma_addr
,
3848 priv
->hw_setting
.rx_buf_size
,
3849 PCI_DMA_FROMDEVICE
);
3850 priv
->alloc_rxb_skb
--;
3851 dev_kfree_skb(rxq
->pool
[i
].skb
);
3852 rxq
->pool
[i
].skb
= NULL
;
3854 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3857 /* Set us so that we have processed and used all buffers, but have
3858 * not restocked the Rx queue with fresh buffers */
3859 rxq
->read
= rxq
->write
= 0;
3860 rxq
->free_count
= 0;
3861 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3864 /* Convert linear signal-to-noise ratio into dB */
3865 static u8 ratio2dB
[100] = {
3866 /* 0 1 2 3 4 5 6 7 8 9 */
3867 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
3868 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
3869 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
3870 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
3871 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
3872 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
3873 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
3874 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
3875 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
3876 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
3879 /* Calculates a relative dB value from a ratio of linear
3880 * (i.e. not dB) signal levels.
3881 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
3882 int iwl4965_calc_db_from_ratio(int sig_ratio
)
3884 /* 1000:1 or higher just report as 60 dB */
3885 if (sig_ratio
>= 1000)
3888 /* 100:1 or higher, divide by 10 and use table,
3889 * add 20 dB to make up for divide by 10 */
3890 if (sig_ratio
>= 100)
3891 return (20 + (int)ratio2dB
[sig_ratio
/10]);
3893 /* We shouldn't see this */
3897 /* Use table for ratios 1:1 - 99:1 */
3898 return (int)ratio2dB
[sig_ratio
];
3901 #define PERFECT_RSSI (-20) /* dBm */
3902 #define WORST_RSSI (-95) /* dBm */
3903 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
3905 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
3906 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
3907 * about formulas used below. */
3908 int iwl4965_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
3911 int degradation
= PERFECT_RSSI
- rssi_dbm
;
3913 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
3914 * as indicator; formula is (signal dbm - noise dbm).
3915 * SNR at or above 40 is a great signal (100%).
3916 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
3917 * Weakest usable signal is usually 10 - 15 dB SNR. */
3919 if (rssi_dbm
- noise_dbm
>= 40)
3921 else if (rssi_dbm
< noise_dbm
)
3923 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
3925 /* Else use just the signal level.
3926 * This formula is a least squares fit of data points collected and
3927 * compared with a reference system that had a percentage (%) display
3928 * for signal quality. */
3930 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
3931 (15 * RSSI_RANGE
+ 62 * degradation
)) /
3932 (RSSI_RANGE
* RSSI_RANGE
);
3936 else if (sig_qual
< 1)
3943 * iwl4965_rx_handle - Main entry function for receiving responses from uCode
3945 * Uses the priv->rx_handlers callback function array to invoke
3946 * the appropriate handlers, including command responses,
3947 * frame-received notifications, and other notifications.
3949 static void iwl4965_rx_handle(struct iwl_priv
*priv
)
3951 struct iwl4965_rx_mem_buffer
*rxb
;
3952 struct iwl4965_rx_packet
*pkt
;
3953 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
3956 unsigned long flags
;
3960 /* uCode's read index (stored in shared DRAM) indicates the last Rx
3961 * buffer that the driver may process (last buffer filled by ucode). */
3962 r
= iwl4965_hw_get_rx_read(priv
);
3965 /* Rx interrupt, but nothing sent from uCode */
3967 IWL_DEBUG(IWL_DL_RX
| IWL_DL_ISR
, "r = %d, i = %d\n", r
, i
);
3969 if (iwl4965_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
3973 rxb
= rxq
->queue
[i
];
3975 /* If an RXB doesn't have a Rx queue slot associated with it,
3976 * then a bug has been introduced in the queue refilling
3977 * routines -- catch it here */
3978 BUG_ON(rxb
== NULL
);
3980 rxq
->queue
[i
] = NULL
;
3982 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
3983 priv
->hw_setting
.rx_buf_size
,
3984 PCI_DMA_FROMDEVICE
);
3985 pkt
= (struct iwl4965_rx_packet
*)rxb
->skb
->data
;
3987 /* Reclaim a command buffer only if this packet is a response
3988 * to a (driver-originated) command.
3989 * If the packet (e.g. Rx frame) originated from uCode,
3990 * there is no command buffer to reclaim.
3991 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
3992 * but apparently a few don't get set; catch them here. */
3993 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
3994 (pkt
->hdr
.cmd
!= REPLY_RX_PHY_CMD
) &&
3995 (pkt
->hdr
.cmd
!= REPLY_RX
) &&
3996 (pkt
->hdr
.cmd
!= REPLY_COMPRESSED_BA
) &&
3997 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
3998 (pkt
->hdr
.cmd
!= REPLY_TX
);
4000 /* Based on type of command response or notification,
4001 * handle those that need handling via function in
4002 * rx_handlers table. See iwl4965_setup_rx_handlers() */
4003 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
4004 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4005 "r = %d, i = %d, %s, 0x%02x\n", r
, i
,
4006 get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
4007 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
4009 /* No handling needed */
4010 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4011 "r %d i %d No handler needed for %s, 0x%02x\n",
4012 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
4017 /* Invoke any callbacks, transfer the skb to caller, and
4018 * fire off the (possibly) blocking iwl_send_cmd()
4019 * as we reclaim the driver command queue */
4020 if (rxb
&& rxb
->skb
)
4021 iwl4965_tx_cmd_complete(priv
, rxb
);
4023 IWL_WARNING("Claim null rxb?\n");
4026 /* For now we just don't re-use anything. We can tweak this
4027 * later to try and re-use notification packets and SKBs that
4028 * fail to Rx correctly */
4029 if (rxb
->skb
!= NULL
) {
4030 priv
->alloc_rxb_skb
--;
4031 dev_kfree_skb_any(rxb
->skb
);
4035 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
4036 priv
->hw_setting
.rx_buf_size
,
4037 PCI_DMA_FROMDEVICE
);
4038 spin_lock_irqsave(&rxq
->lock
, flags
);
4039 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
4040 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4041 i
= (i
+ 1) & RX_QUEUE_MASK
;
4042 /* If there are a lot of unused frames,
4043 * restock the Rx queue so ucode wont assert. */
4048 __iwl4965_rx_replenish(priv
);
4054 /* Backtrack one entry */
4056 iwl4965_rx_queue_restock(priv
);
4060 * iwl4965_tx_queue_update_write_ptr - Send new write index to hardware
4062 static int iwl4965_tx_queue_update_write_ptr(struct iwl_priv
*priv
,
4063 struct iwl4965_tx_queue
*txq
)
4067 int txq_id
= txq
->q
.id
;
4069 if (txq
->need_update
== 0)
4072 /* if we're trying to save power */
4073 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
4074 /* wake up nic if it's powered down ...
4075 * uCode will wake up, and interrupt us again, so next
4076 * time we'll skip this part. */
4077 reg
= iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
4079 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
4080 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg
);
4081 iwl_set_bit(priv
, CSR_GP_CNTRL
,
4082 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
4086 /* restore this queue's parameters in nic hardware. */
4087 rc
= iwl_grab_nic_access(priv
);
4090 iwl_write_direct32(priv
, HBUS_TARG_WRPTR
,
4091 txq
->q
.write_ptr
| (txq_id
<< 8));
4092 iwl_release_nic_access(priv
);
4094 /* else not in power-save mode, uCode will never sleep when we're
4095 * trying to tx (during RFKILL, we're not trying to tx). */
4097 iwl_write32(priv
, HBUS_TARG_WRPTR
,
4098 txq
->q
.write_ptr
| (txq_id
<< 8));
4100 txq
->need_update
= 0;
4105 #ifdef CONFIG_IWLWIFI_DEBUG
4106 static void iwl4965_print_rx_config_cmd(struct iwl4965_rxon_cmd
*rxon
)
4108 DECLARE_MAC_BUF(mac
);
4110 IWL_DEBUG_RADIO("RX CONFIG:\n");
4111 iwl_print_hex_dump(IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
4112 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
4113 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
4114 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
4115 le32_to_cpu(rxon
->filter_flags
));
4116 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
4117 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
4118 rxon
->ofdm_basic_rates
);
4119 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
4120 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
4121 print_mac(mac
, rxon
->node_addr
));
4122 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
4123 print_mac(mac
, rxon
->bssid_addr
));
4124 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
4128 static void iwl4965_enable_interrupts(struct iwl_priv
*priv
)
4130 IWL_DEBUG_ISR("Enabling interrupts\n");
4131 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
4132 iwl_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
4135 /* call this function to flush any scheduled tasklet */
4136 static inline void iwl_synchronize_irq(struct iwl_priv
*priv
)
4138 /* wait to make sure we flush pedding tasklet*/
4139 synchronize_irq(priv
->pci_dev
->irq
);
4140 tasklet_kill(&priv
->irq_tasklet
);
4143 static inline void iwl4965_disable_interrupts(struct iwl_priv
*priv
)
4145 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
4147 /* disable interrupts from uCode/NIC to host */
4148 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
4150 /* acknowledge/clear/reset any interrupts still pending
4151 * from uCode or flow handler (Rx/Tx DMA) */
4152 iwl_write32(priv
, CSR_INT
, 0xffffffff);
4153 iwl_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
4154 IWL_DEBUG_ISR("Disabled interrupts\n");
4157 static const char *desc_lookup(int i
)
4165 return "BAD_CHECKSUM";
4167 return "NMI_INTERRUPT";
4171 return "FATAL_ERROR";
4177 #define ERROR_START_OFFSET (1 * sizeof(u32))
4178 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
4180 static void iwl4965_dump_nic_error_log(struct iwl_priv
*priv
)
4183 u32 desc
, time
, count
, base
, data1
;
4184 u32 blink1
, blink2
, ilink1
, ilink2
;
4187 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
4189 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
4190 IWL_ERROR("Not valid error log pointer 0x%08X\n", base
);
4194 rc
= iwl_grab_nic_access(priv
);
4196 IWL_WARNING("Can not read from adapter at this time.\n");
4200 count
= iwl_read_targ_mem(priv
, base
);
4202 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
4203 IWL_ERROR("Start IWL Error Log Dump:\n");
4204 IWL_ERROR("Status: 0x%08lX, count: %d\n", priv
->status
, count
);
4207 desc
= iwl_read_targ_mem(priv
, base
+ 1 * sizeof(u32
));
4208 blink1
= iwl_read_targ_mem(priv
, base
+ 3 * sizeof(u32
));
4209 blink2
= iwl_read_targ_mem(priv
, base
+ 4 * sizeof(u32
));
4210 ilink1
= iwl_read_targ_mem(priv
, base
+ 5 * sizeof(u32
));
4211 ilink2
= iwl_read_targ_mem(priv
, base
+ 6 * sizeof(u32
));
4212 data1
= iwl_read_targ_mem(priv
, base
+ 7 * sizeof(u32
));
4213 data2
= iwl_read_targ_mem(priv
, base
+ 8 * sizeof(u32
));
4214 line
= iwl_read_targ_mem(priv
, base
+ 9 * sizeof(u32
));
4215 time
= iwl_read_targ_mem(priv
, base
+ 11 * sizeof(u32
));
4217 IWL_ERROR("Desc Time "
4218 "data1 data2 line\n");
4219 IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n",
4220 desc_lookup(desc
), desc
, time
, data1
, data2
, line
);
4221 IWL_ERROR("blink1 blink2 ilink1 ilink2\n");
4222 IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1
, blink2
,
4225 iwl_release_nic_access(priv
);
4228 #define EVENT_START_OFFSET (4 * sizeof(u32))
4231 * iwl4965_print_event_log - Dump error event log to syslog
4233 * NOTE: Must be called with iwl_grab_nic_access() already obtained!
4235 static void iwl4965_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
4236 u32 num_events
, u32 mode
)
4239 u32 base
; /* SRAM byte address of event log header */
4240 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
4241 u32 ptr
; /* SRAM byte address of log data */
4242 u32 ev
, time
, data
; /* event log data */
4244 if (num_events
== 0)
4247 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4250 event_size
= 2 * sizeof(u32
);
4252 event_size
= 3 * sizeof(u32
);
4254 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
4256 /* "time" is actually "data" for mode 0 (no timestamp).
4257 * place event id # at far right for easier visual parsing. */
4258 for (i
= 0; i
< num_events
; i
++) {
4259 ev
= iwl_read_targ_mem(priv
, ptr
);
4261 time
= iwl_read_targ_mem(priv
, ptr
);
4264 IWL_ERROR("0x%08x\t%04u\n", time
, ev
); /* data, ev */
4266 data
= iwl_read_targ_mem(priv
, ptr
);
4268 IWL_ERROR("%010u\t0x%08x\t%04u\n", time
, data
, ev
);
4273 static void iwl4965_dump_nic_event_log(struct iwl_priv
*priv
)
4276 u32 base
; /* SRAM byte address of event log header */
4277 u32 capacity
; /* event log capacity in # entries */
4278 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
4279 u32 num_wraps
; /* # times uCode wrapped to top of log */
4280 u32 next_entry
; /* index of next entry to be written by uCode */
4281 u32 size
; /* # entries that we'll print */
4283 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4284 if (!priv
->cfg
->ops
->lib
->is_valid_rtc_data_addr(base
)) {
4285 IWL_ERROR("Invalid event log pointer 0x%08X\n", base
);
4289 rc
= iwl_grab_nic_access(priv
);
4291 IWL_WARNING("Can not read from adapter at this time.\n");
4295 /* event log header */
4296 capacity
= iwl_read_targ_mem(priv
, base
);
4297 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
4298 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
4299 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
4301 size
= num_wraps
? capacity
: next_entry
;
4303 /* bail out if nothing in log */
4305 IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
4306 iwl_release_nic_access(priv
);
4310 IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
4313 /* if uCode has wrapped back to top of log, start at the oldest entry,
4314 * i.e the next one that uCode would fill. */
4316 iwl4965_print_event_log(priv
, next_entry
,
4317 capacity
- next_entry
, mode
);
4319 /* (then/else) start at top of log */
4320 iwl4965_print_event_log(priv
, 0, next_entry
, mode
);
4322 iwl_release_nic_access(priv
);
4326 * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
4328 static void iwl4965_irq_handle_error(struct iwl_priv
*priv
)
4330 /* Set the FW error flag -- cleared on iwl4965_down */
4331 set_bit(STATUS_FW_ERROR
, &priv
->status
);
4333 /* Cancel currently queued command. */
4334 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
4336 #ifdef CONFIG_IWLWIFI_DEBUG
4337 if (iwl_debug_level
& IWL_DL_FW_ERRORS
) {
4338 iwl4965_dump_nic_error_log(priv
);
4339 iwl4965_dump_nic_event_log(priv
);
4340 iwl4965_print_rx_config_cmd(&priv
->staging_rxon
);
4344 wake_up_interruptible(&priv
->wait_command_queue
);
4346 /* Keep the restart process from trying to send host
4347 * commands by clearing the INIT status bit */
4348 clear_bit(STATUS_READY
, &priv
->status
);
4350 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
4351 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_FW_ERRORS
,
4352 "Restarting adapter due to uCode error.\n");
4354 if (iwl_is_associated(priv
)) {
4355 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
4356 sizeof(priv
->recovery_rxon
));
4357 priv
->error_recovering
= 1;
4359 queue_work(priv
->workqueue
, &priv
->restart
);
4363 static void iwl4965_error_recovery(struct iwl_priv
*priv
)
4365 unsigned long flags
;
4367 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
4368 sizeof(priv
->staging_rxon
));
4369 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4370 iwl4965_commit_rxon(priv
);
4372 iwl4965_rxon_add_station(priv
, priv
->bssid
, 1);
4374 spin_lock_irqsave(&priv
->lock
, flags
);
4375 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
4376 priv
->error_recovering
= 0;
4377 spin_unlock_irqrestore(&priv
->lock
, flags
);
4380 static void iwl4965_irq_tasklet(struct iwl_priv
*priv
)
4382 u32 inta
, handled
= 0;
4384 unsigned long flags
;
4385 #ifdef CONFIG_IWLWIFI_DEBUG
4389 spin_lock_irqsave(&priv
->lock
, flags
);
4391 /* Ack/clear/reset pending uCode interrupts.
4392 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
4393 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
4394 inta
= iwl_read32(priv
, CSR_INT
);
4395 iwl_write32(priv
, CSR_INT
, inta
);
4397 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
4398 * Any new interrupts that happen after this, either while we're
4399 * in this tasklet, or later, will show up in next ISR/tasklet. */
4400 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
4401 iwl_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
4403 #ifdef CONFIG_IWLWIFI_DEBUG
4404 if (iwl_debug_level
& IWL_DL_ISR
) {
4405 /* just for debug */
4406 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
4407 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4408 inta
, inta_mask
, inta_fh
);
4412 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
4413 * atomic, make sure that inta covers all the interrupts that
4414 * we've discovered, even if FH interrupt came in just after
4415 * reading CSR_INT. */
4416 if (inta_fh
& CSR49_FH_INT_RX_MASK
)
4417 inta
|= CSR_INT_BIT_FH_RX
;
4418 if (inta_fh
& CSR49_FH_INT_TX_MASK
)
4419 inta
|= CSR_INT_BIT_FH_TX
;
4421 /* Now service all interrupt bits discovered above. */
4422 if (inta
& CSR_INT_BIT_HW_ERR
) {
4423 IWL_ERROR("Microcode HW error detected. Restarting.\n");
4425 /* Tell the device to stop sending interrupts */
4426 iwl4965_disable_interrupts(priv
);
4428 iwl4965_irq_handle_error(priv
);
4430 handled
|= CSR_INT_BIT_HW_ERR
;
4432 spin_unlock_irqrestore(&priv
->lock
, flags
);
4437 #ifdef CONFIG_IWLWIFI_DEBUG
4438 if (iwl_debug_level
& (IWL_DL_ISR
)) {
4439 /* NIC fires this, but we don't use it, redundant with WAKEUP */
4440 if (inta
& CSR_INT_BIT_SCD
)
4441 IWL_DEBUG_ISR("Scheduler finished to transmit "
4442 "the frame/frames.\n");
4444 /* Alive notification via Rx interrupt will do the real work */
4445 if (inta
& CSR_INT_BIT_ALIVE
)
4446 IWL_DEBUG_ISR("Alive interrupt\n");
4449 /* Safely ignore these bits for debug checks below */
4450 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
4452 /* HW RF KILL switch toggled */
4453 if (inta
& CSR_INT_BIT_RF_KILL
) {
4455 if (!(iwl_read32(priv
, CSR_GP_CNTRL
) &
4456 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
4459 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
| IWL_DL_ISR
,
4460 "RF_KILL bit toggled to %s.\n",
4461 hw_rf_kill
? "disable radio":"enable radio");
4463 /* Queue restart only if RF_KILL switch was set to "kill"
4464 * when we loaded driver, and is now set to "enable".
4465 * After we're Alive, RF_KILL gets handled by
4466 * iwl4965_rx_card_state_notif() */
4467 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
4468 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
4469 queue_work(priv
->workqueue
, &priv
->restart
);
4472 handled
|= CSR_INT_BIT_RF_KILL
;
4475 /* Chip got too hot and stopped itself */
4476 if (inta
& CSR_INT_BIT_CT_KILL
) {
4477 IWL_ERROR("Microcode CT kill error detected.\n");
4478 handled
|= CSR_INT_BIT_CT_KILL
;
4481 /* Error detected by uCode */
4482 if (inta
& CSR_INT_BIT_SW_ERR
) {
4483 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
4485 iwl4965_irq_handle_error(priv
);
4486 handled
|= CSR_INT_BIT_SW_ERR
;
4489 /* uCode wakes up after power-down sleep */
4490 if (inta
& CSR_INT_BIT_WAKEUP
) {
4491 IWL_DEBUG_ISR("Wakeup interrupt\n");
4492 iwl4965_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
4493 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[0]);
4494 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[1]);
4495 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[2]);
4496 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[3]);
4497 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[4]);
4498 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[5]);
4500 handled
|= CSR_INT_BIT_WAKEUP
;
4503 /* All uCode command responses, including Tx command responses,
4504 * Rx "responses" (frame-received notification), and other
4505 * notifications from uCode come through here*/
4506 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
4507 iwl4965_rx_handle(priv
);
4508 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
4511 if (inta
& CSR_INT_BIT_FH_TX
) {
4512 IWL_DEBUG_ISR("Tx interrupt\n");
4513 handled
|= CSR_INT_BIT_FH_TX
;
4516 if (inta
& ~handled
)
4517 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
4519 if (inta
& ~CSR_INI_SET_MASK
) {
4520 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
4521 inta
& ~CSR_INI_SET_MASK
);
4522 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
4525 /* Re-enable all interrupts */
4526 /* only Re-enable if diabled by irq */
4527 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
4528 iwl4965_enable_interrupts(priv
);
4530 #ifdef CONFIG_IWLWIFI_DEBUG
4531 if (iwl_debug_level
& (IWL_DL_ISR
)) {
4532 inta
= iwl_read32(priv
, CSR_INT
);
4533 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
4534 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
4535 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
4536 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
4539 spin_unlock_irqrestore(&priv
->lock
, flags
);
4542 static irqreturn_t
iwl4965_isr(int irq
, void *data
)
4544 struct iwl_priv
*priv
= data
;
4545 u32 inta
, inta_mask
;
4550 spin_lock(&priv
->lock
);
4552 /* Disable (but don't clear!) interrupts here to avoid
4553 * back-to-back ISRs and sporadic interrupts from our NIC.
4554 * If we have something to service, the tasklet will re-enable ints.
4555 * If we *don't* have something, we'll re-enable before leaving here. */
4556 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
4557 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
4559 /* Discover which interrupts are active/pending */
4560 inta
= iwl_read32(priv
, CSR_INT
);
4561 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
4563 /* Ignore interrupt if there's nothing in NIC to service.
4564 * This may be due to IRQ shared with another device,
4565 * or due to sporadic interrupts thrown from our NIC. */
4566 if (!inta
&& !inta_fh
) {
4567 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
4571 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
4572 /* Hardware disappeared. It might have already raised
4574 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
4578 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4579 inta
, inta_mask
, inta_fh
);
4581 inta
&= ~CSR_INT_BIT_SCD
;
4583 /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
4584 if (likely(inta
|| inta_fh
))
4585 tasklet_schedule(&priv
->irq_tasklet
);
4588 spin_unlock(&priv
->lock
);
4592 /* re-enable interrupts here since we don't have anything to service. */
4593 /* only Re-enable if diabled by irq */
4594 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
4595 iwl4965_enable_interrupts(priv
);
4596 spin_unlock(&priv
->lock
);
4600 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
4601 * sending probe req. This should be set long enough to hear probe responses
4602 * from more than one AP. */
4603 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
4604 #define IWL_ACTIVE_DWELL_TIME_52 (10)
4606 /* For faster active scanning, scan will move to the next channel if fewer than
4607 * PLCP_QUIET_THRESH packets are heard on this channel within
4608 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
4609 * time if it's a quiet channel (nothing responded to our probe, and there's
4610 * no other traffic).
4611 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
4612 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
4613 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
4615 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
4616 * Must be set longer than active dwell time.
4617 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
4618 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
4619 #define IWL_PASSIVE_DWELL_TIME_52 (10)
4620 #define IWL_PASSIVE_DWELL_BASE (100)
4621 #define IWL_CHANNEL_TUNE_TIME 5
4623 static inline u16
iwl4965_get_active_dwell_time(struct iwl_priv
*priv
,
4624 enum ieee80211_band band
)
4626 if (band
== IEEE80211_BAND_5GHZ
)
4627 return IWL_ACTIVE_DWELL_TIME_52
;
4629 return IWL_ACTIVE_DWELL_TIME_24
;
4632 static u16
iwl4965_get_passive_dwell_time(struct iwl_priv
*priv
,
4633 enum ieee80211_band band
)
4635 u16 active
= iwl4965_get_active_dwell_time(priv
, band
);
4636 u16 passive
= (band
!= IEEE80211_BAND_5GHZ
) ?
4637 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
4638 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
4640 if (iwl_is_associated(priv
)) {
4641 /* If we're associated, we clamp the maximum passive
4642 * dwell time to be 98% of the beacon interval (minus
4643 * 2 * channel tune time) */
4644 passive
= priv
->beacon_int
;
4645 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
4646 passive
= IWL_PASSIVE_DWELL_BASE
;
4647 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
4650 if (passive
<= active
)
4651 passive
= active
+ 1;
4656 static int iwl4965_get_channels_for_scan(struct iwl_priv
*priv
,
4657 enum ieee80211_band band
,
4658 u8 is_active
, u8 direct_mask
,
4659 struct iwl4965_scan_channel
*scan_ch
)
4661 const struct ieee80211_channel
*channels
= NULL
;
4662 const struct ieee80211_supported_band
*sband
;
4663 const struct iwl_channel_info
*ch_info
;
4664 u16 passive_dwell
= 0;
4665 u16 active_dwell
= 0;
4668 sband
= iwl4965_get_hw_mode(priv
, band
);
4672 channels
= sband
->channels
;
4674 active_dwell
= iwl4965_get_active_dwell_time(priv
, band
);
4675 passive_dwell
= iwl4965_get_passive_dwell_time(priv
, band
);
4677 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
4678 if (channels
[i
].flags
& IEEE80211_CHAN_DISABLED
)
4681 if (ieee80211_frequency_to_channel(channels
[i
].center_freq
) ==
4682 le16_to_cpu(priv
->active_rxon
.channel
)) {
4683 if (iwl_is_associated(priv
)) {
4685 ("Skipping current channel %d\n",
4686 le16_to_cpu(priv
->active_rxon
.channel
));
4689 } else if (priv
->only_active_channel
)
4692 scan_ch
->channel
= ieee80211_frequency_to_channel(channels
[i
].center_freq
);
4694 ch_info
= iwl_get_channel_info(priv
, band
,
4696 if (!is_channel_valid(ch_info
)) {
4697 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
4702 if (!is_active
|| is_channel_passive(ch_info
) ||
4703 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
))
4704 scan_ch
->type
= 0; /* passive */
4706 scan_ch
->type
= 1; /* active */
4708 if (scan_ch
->type
& 1)
4709 scan_ch
->type
|= (direct_mask
<< 1);
4711 if (is_channel_narrow(ch_info
))
4712 scan_ch
->type
|= (1 << 7);
4714 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
4715 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
4717 /* Set txpower levels to defaults */
4718 scan_ch
->tpc
.dsp_atten
= 110;
4719 /* scan_pwr_info->tpc.dsp_atten; */
4721 /*scan_pwr_info->tpc.tx_gain; */
4722 if (band
== IEEE80211_BAND_5GHZ
)
4723 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
4725 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
4726 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
4728 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
4732 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
4734 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
4735 (scan_ch
->type
& 1) ?
4736 active_dwell
: passive_dwell
);
4742 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
4746 static void iwl4965_init_hw_rates(struct iwl_priv
*priv
,
4747 struct ieee80211_rate
*rates
)
4751 for (i
= 0; i
< IWL_RATE_COUNT
; i
++) {
4752 rates
[i
].bitrate
= iwl4965_rates
[i
].ieee
* 5;
4753 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
4754 rates
[i
].hw_value_short
= i
;
4756 if ((i
> IWL_LAST_OFDM_RATE
) || (i
< IWL_FIRST_OFDM_RATE
)) {
4758 * If CCK != 1M then set short preamble rate flag.
4761 (iwl4965_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
4762 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
4768 * iwl4965_init_geos - Initialize mac80211's geo/channel info based from eeprom
4770 int iwl4965_init_geos(struct iwl_priv
*priv
)
4772 struct iwl_channel_info
*ch
;
4773 struct ieee80211_supported_band
*sband
;
4774 struct ieee80211_channel
*channels
;
4775 struct ieee80211_channel
*geo_ch
;
4776 struct ieee80211_rate
*rates
;
4779 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
4780 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
4781 IWL_DEBUG_INFO("Geography modes already initialized.\n");
4782 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
4786 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
4787 priv
->channel_count
, GFP_KERNEL
);
4791 rates
= kzalloc((sizeof(struct ieee80211_rate
) * (IWL_RATE_COUNT
+ 1)),
4798 /* 5.2GHz channels start after the 2.4GHz channels */
4799 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
4800 sband
->channels
= &channels
[ARRAY_SIZE(iwl_eeprom_band_1
)];
4802 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
4803 sband
->n_bitrates
= IWL_RATE_COUNT
- IWL_FIRST_OFDM_RATE
;
4805 iwl4965_init_ht_hw_capab(priv
, &sband
->ht_info
, IEEE80211_BAND_5GHZ
);
4807 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
4808 sband
->channels
= channels
;
4810 sband
->bitrates
= rates
;
4811 sband
->n_bitrates
= IWL_RATE_COUNT
;
4813 iwl4965_init_ht_hw_capab(priv
, &sband
->ht_info
, IEEE80211_BAND_2GHZ
);
4815 priv
->ieee_channels
= channels
;
4816 priv
->ieee_rates
= rates
;
4818 iwl4965_init_hw_rates(priv
, rates
);
4820 for (i
= 0; i
< priv
->channel_count
; i
++) {
4821 ch
= &priv
->channel_info
[i
];
4823 /* FIXME: might be removed if scan is OK */
4824 if (!is_channel_valid(ch
))
4827 if (is_channel_a_band(ch
))
4828 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
4830 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
4832 geo_ch
= &sband
->channels
[sband
->n_channels
++];
4834 geo_ch
->center_freq
= ieee80211_channel_to_frequency(ch
->channel
);
4835 geo_ch
->max_power
= ch
->max_power_avg
;
4836 geo_ch
->max_antenna_gain
= 0xff;
4837 geo_ch
->hw_value
= ch
->channel
;
4839 if (is_channel_valid(ch
)) {
4840 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
4841 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
4843 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
4844 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
4846 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
4847 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
4849 if (ch
->max_power_avg
> priv
->max_channel_txpower_limit
)
4850 priv
->max_channel_txpower_limit
=
4853 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
4856 /* Save flags for reg domain usage */
4857 geo_ch
->orig_flags
= geo_ch
->flags
;
4859 IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n",
4860 ch
->channel
, geo_ch
->center_freq
,
4861 is_channel_a_band(ch
) ? "5.2" : "2.4",
4862 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
4863 "restricted" : "valid",
4867 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) &&
4868 priv
->cfg
->sku
& IWL_SKU_A
) {
4869 printk(KERN_INFO DRV_NAME
4870 ": Incorrectly detected BG card as ABG. Please send "
4871 "your PCI ID 0x%04X:0x%04X to maintainer.\n",
4872 priv
->pci_dev
->device
, priv
->pci_dev
->subsystem_device
);
4873 priv
->cfg
->sku
&= ~IWL_SKU_A
;
4876 printk(KERN_INFO DRV_NAME
4877 ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
4878 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
4879 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
4881 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
4882 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
4883 &priv
->bands
[IEEE80211_BAND_2GHZ
];
4884 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
4885 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
4886 &priv
->bands
[IEEE80211_BAND_5GHZ
];
4888 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
4894 * iwl4965_free_geos - undo allocations in iwl4965_init_geos
4896 void iwl4965_free_geos(struct iwl_priv
*priv
)
4898 kfree(priv
->ieee_channels
);
4899 kfree(priv
->ieee_rates
);
4900 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
4903 /******************************************************************************
4905 * uCode download functions
4907 ******************************************************************************/
4909 static void iwl4965_dealloc_ucode_pci(struct iwl_priv
*priv
)
4911 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
4912 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
4913 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
4914 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
4915 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
4916 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
4920 * iwl4965_verify_inst_full - verify runtime uCode image in card vs. host,
4921 * looking at all data.
4923 static int iwl4965_verify_inst_full(struct iwl_priv
*priv
, __le32
*image
,
4931 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
4933 rc
= iwl_grab_nic_access(priv
);
4937 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, RTC_INST_LOWER_BOUND
);
4940 for (; len
> 0; len
-= sizeof(u32
), image
++) {
4941 /* read data comes through single port, auto-incr addr */
4942 /* NOTE: Use the debugless read so we don't flood kernel log
4943 * if IWL_DL_IO is set */
4944 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
4945 if (val
!= le32_to_cpu(*image
)) {
4946 IWL_ERROR("uCode INST section is invalid at "
4947 "offset 0x%x, is 0x%x, s/b 0x%x\n",
4948 save_len
- len
, val
, le32_to_cpu(*image
));
4956 iwl_release_nic_access(priv
);
4960 ("ucode image in INSTRUCTION memory is good\n");
4967 * iwl4965_verify_inst_sparse - verify runtime uCode image in card vs. host,
4968 * using sample data 100 bytes apart. If these sample points are good,
4969 * it's a pretty good bet that everything between them is good, too.
4971 static int iwl4965_verify_inst_sparse(struct iwl_priv
*priv
, __le32
*image
, u32 len
)
4978 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
4980 rc
= iwl_grab_nic_access(priv
);
4984 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
4985 /* read data comes through single port, auto-incr addr */
4986 /* NOTE: Use the debugless read so we don't flood kernel log
4987 * if IWL_DL_IO is set */
4988 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
4989 i
+ RTC_INST_LOWER_BOUND
);
4990 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
4991 if (val
!= le32_to_cpu(*image
)) {
4992 #if 0 /* Enable this if you want to see details */
4993 IWL_ERROR("uCode INST section is invalid at "
4994 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5004 iwl_release_nic_access(priv
);
5011 * iwl4965_verify_ucode - determine which instruction image is in SRAM,
5012 * and verify its contents
5014 static int iwl4965_verify_ucode(struct iwl_priv
*priv
)
5021 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5022 len
= priv
->ucode_boot
.len
;
5023 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5025 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
5029 /* Try initialize */
5030 image
= (__le32
*)priv
->ucode_init
.v_addr
;
5031 len
= priv
->ucode_init
.len
;
5032 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5034 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
5038 /* Try runtime/protocol */
5039 image
= (__le32
*)priv
->ucode_code
.v_addr
;
5040 len
= priv
->ucode_code
.len
;
5041 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5043 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
5047 IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
5049 /* Since nothing seems to match, show first several data entries in
5050 * instruction SRAM, so maybe visual inspection will give a clue.
5051 * Selection of bootstrap image (vs. other images) is arbitrary. */
5052 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5053 len
= priv
->ucode_boot
.len
;
5054 rc
= iwl4965_verify_inst_full(priv
, image
, len
);
5059 static void iwl4965_nic_start(struct iwl_priv
*priv
)
5061 /* Remove all resets to allow NIC to operate */
5062 iwl_write32(priv
, CSR_RESET
, 0);
5067 * iwl4965_read_ucode - Read uCode images from disk file.
5069 * Copy into buffers for card to fetch via bus-mastering
5071 static int iwl4965_read_ucode(struct iwl_priv
*priv
)
5073 struct iwl4965_ucode
*ucode
;
5075 const struct firmware
*ucode_raw
;
5076 const char *name
= priv
->cfg
->fw_name
;
5079 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
5081 /* Ask kernel firmware_class module to get the boot firmware off disk.
5082 * request_firmware() is synchronous, file is in memory on return. */
5083 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
5085 IWL_ERROR("%s firmware file req failed: Reason %d\n",
5090 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
5091 name
, ucode_raw
->size
);
5093 /* Make sure that we got at least our header! */
5094 if (ucode_raw
->size
< sizeof(*ucode
)) {
5095 IWL_ERROR("File size way too small!\n");
5100 /* Data from ucode file: header followed by uCode images */
5101 ucode
= (void *)ucode_raw
->data
;
5103 ver
= le32_to_cpu(ucode
->ver
);
5104 inst_size
= le32_to_cpu(ucode
->inst_size
);
5105 data_size
= le32_to_cpu(ucode
->data_size
);
5106 init_size
= le32_to_cpu(ucode
->init_size
);
5107 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
5108 boot_size
= le32_to_cpu(ucode
->boot_size
);
5110 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
5111 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
5113 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
5115 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
5117 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
5119 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
5122 /* Verify size of file vs. image size info in file's header */
5123 if (ucode_raw
->size
< sizeof(*ucode
) +
5124 inst_size
+ data_size
+ init_size
+
5125 init_data_size
+ boot_size
) {
5127 IWL_DEBUG_INFO("uCode file size %d too small\n",
5128 (int)ucode_raw
->size
);
5133 /* Verify that uCode images will fit in card's SRAM */
5134 if (inst_size
> IWL_MAX_INST_SIZE
) {
5135 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
5141 if (data_size
> IWL_MAX_DATA_SIZE
) {
5142 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
5147 if (init_size
> IWL_MAX_INST_SIZE
) {
5149 ("uCode init instr len %d too large to fit in\n",
5154 if (init_data_size
> IWL_MAX_DATA_SIZE
) {
5156 ("uCode init data len %d too large to fit in\n",
5161 if (boot_size
> IWL_MAX_BSM_SIZE
) {
5163 ("uCode boot instr len %d too large to fit in\n",
5169 /* Allocate ucode buffers for card's bus-master loading ... */
5171 /* Runtime instructions and 2 copies of data:
5172 * 1) unmodified from disk
5173 * 2) backup cache for save/restore during power-downs */
5174 priv
->ucode_code
.len
= inst_size
;
5175 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5177 priv
->ucode_data
.len
= data_size
;
5178 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5180 priv
->ucode_data_backup
.len
= data_size
;
5181 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5183 /* Initialization instructions and data */
5184 if (init_size
&& init_data_size
) {
5185 priv
->ucode_init
.len
= init_size
;
5186 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5188 priv
->ucode_init_data
.len
= init_data_size
;
5189 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5191 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
5195 /* Bootstrap (instructions only, no data) */
5197 priv
->ucode_boot
.len
= boot_size
;
5198 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5200 if (!priv
->ucode_boot
.v_addr
)
5204 /* Copy images into buffers for card's bus-master reads ... */
5206 /* Runtime instructions (first block of data in file) */
5207 src
= &ucode
->data
[0];
5208 len
= priv
->ucode_code
.len
;
5209 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
5210 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
5211 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
5212 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
5214 /* Runtime data (2nd block)
5215 * NOTE: Copy into backup buffer will be done in iwl4965_up() */
5216 src
= &ucode
->data
[inst_size
];
5217 len
= priv
->ucode_data
.len
;
5218 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
5219 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
5220 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
5222 /* Initialization instructions (3rd block) */
5224 src
= &ucode
->data
[inst_size
+ data_size
];
5225 len
= priv
->ucode_init
.len
;
5226 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
5228 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
5231 /* Initialization data (4th block) */
5232 if (init_data_size
) {
5233 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
5234 len
= priv
->ucode_init_data
.len
;
5235 IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
5237 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
5240 /* Bootstrap instructions (5th block) */
5241 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
5242 len
= priv
->ucode_boot
.len
;
5243 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len
);
5244 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
5246 /* We have our copies now, allow OS release its copies */
5247 release_firmware(ucode_raw
);
5251 IWL_ERROR("failed to allocate pci memory\n");
5253 iwl4965_dealloc_ucode_pci(priv
);
5256 release_firmware(ucode_raw
);
5264 * iwl4965_set_ucode_ptrs - Set uCode address location
5266 * Tell initialization uCode where to find runtime uCode.
5268 * BSM registers initially contain pointers to initialization uCode.
5269 * We need to replace them to load runtime uCode inst and data,
5270 * and to save runtime data when powering down.
5272 static int iwl4965_set_ucode_ptrs(struct iwl_priv
*priv
)
5277 unsigned long flags
;
5279 /* bits 35:4 for 4965 */
5280 pinst
= priv
->ucode_code
.p_addr
>> 4;
5281 pdata
= priv
->ucode_data_backup
.p_addr
>> 4;
5283 spin_lock_irqsave(&priv
->lock
, flags
);
5284 rc
= iwl_grab_nic_access(priv
);
5286 spin_unlock_irqrestore(&priv
->lock
, flags
);
5290 /* Tell bootstrap uCode where to find image to load */
5291 iwl_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5292 iwl_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5293 iwl_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
,
5294 priv
->ucode_data
.len
);
5296 /* Inst bytecount must be last to set up, bit 31 signals uCode
5297 * that all new ptr/size info is in place */
5298 iwl_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
,
5299 priv
->ucode_code
.len
| BSM_DRAM_INST_LOAD
);
5301 iwl_release_nic_access(priv
);
5303 spin_unlock_irqrestore(&priv
->lock
, flags
);
5305 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
5311 * iwl4965_init_alive_start - Called after REPLY_ALIVE notification received
5313 * Called after REPLY_ALIVE notification received from "initialize" uCode.
5315 * The 4965 "initialize" ALIVE reply contains calibration data for:
5316 * Voltage, temperature, and MIMO tx gain correction, now stored in priv
5317 * (3945 does not contain this data).
5319 * Tell "initialize" uCode to go ahead and load the runtime uCode.
5321 static void iwl4965_init_alive_start(struct iwl_priv
*priv
)
5323 /* Check alive response for "valid" sign from uCode */
5324 if (priv
->card_alive_init
.is_valid
!= UCODE_VALID_OK
) {
5325 /* We had an error bringing up the hardware, so take it
5326 * all the way back down so we can try again */
5327 IWL_DEBUG_INFO("Initialize Alive failed.\n");
5331 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
5332 * This is a paranoid check, because we would not have gotten the
5333 * "initialize" alive if code weren't properly loaded. */
5334 if (iwl4965_verify_ucode(priv
)) {
5335 /* Runtime instruction load was bad;
5336 * take it all the way back down so we can try again */
5337 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
5341 /* Calculate temperature */
5342 priv
->temperature
= iwl4965_get_temperature(priv
);
5344 /* Send pointers to protocol/runtime uCode image ... init code will
5345 * load and launch runtime uCode, which will send us another "Alive"
5347 IWL_DEBUG_INFO("Initialization Alive received.\n");
5348 if (iwl4965_set_ucode_ptrs(priv
)) {
5349 /* Runtime instruction load won't happen;
5350 * take it all the way back down so we can try again */
5351 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
5357 queue_work(priv
->workqueue
, &priv
->restart
);
5362 * iwl4965_alive_start - called after REPLY_ALIVE notification received
5363 * from protocol/runtime uCode (initialization uCode's
5364 * Alive gets handled by iwl4965_init_alive_start()).
5366 static void iwl4965_alive_start(struct iwl_priv
*priv
)
5370 IWL_DEBUG_INFO("Runtime Alive received.\n");
5372 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
5373 /* We had an error bringing up the hardware, so take it
5374 * all the way back down so we can try again */
5375 IWL_DEBUG_INFO("Alive failed.\n");
5379 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
5380 * This is a paranoid check, because we would not have gotten the
5381 * "runtime" alive if code weren't properly loaded. */
5382 if (iwl4965_verify_ucode(priv
)) {
5383 /* Runtime instruction load was bad;
5384 * take it all the way back down so we can try again */
5385 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
5389 iwlcore_clear_stations_table(priv
);
5391 ret
= priv
->cfg
->ops
->lib
->alive_notify(priv
);
5393 IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
5398 /* After the ALIVE response, we can send host commands to 4965 uCode */
5399 set_bit(STATUS_ALIVE
, &priv
->status
);
5401 /* Clear out the uCode error bit if it is set */
5402 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
5404 if (iwl_is_rfkill(priv
))
5407 ieee80211_start_queues(priv
->hw
);
5409 priv
->active_rate
= priv
->rates_mask
;
5410 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
5412 iwl4965_send_power_mode(priv
, IWL_POWER_LEVEL(priv
->power_mode
));
5414 if (iwl_is_associated(priv
)) {
5415 struct iwl4965_rxon_cmd
*active_rxon
=
5416 (struct iwl4965_rxon_cmd
*)(&priv
->active_rxon
);
5418 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
5419 sizeof(priv
->staging_rxon
));
5420 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5422 /* Initialize our rx_config data */
5423 iwl4965_connection_init_rx_config(priv
);
5424 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
5427 /* Configure Bluetooth device coexistence support */
5428 iwl4965_send_bt_config(priv
);
5430 /* Configure the adapter for unassociated operation */
5431 iwl4965_commit_rxon(priv
);
5433 /* At this point, the NIC is initialized and operational */
5434 priv
->notif_missed_beacons
= 0;
5436 iwl4965_rf_kill_ct_config(priv
);
5438 iwl_leds_register(priv
);
5440 IWL_DEBUG_INFO("ALIVE processing complete.\n");
5441 set_bit(STATUS_READY
, &priv
->status
);
5442 wake_up_interruptible(&priv
->wait_command_queue
);
5444 if (priv
->error_recovering
)
5445 iwl4965_error_recovery(priv
);
5447 iwlcore_low_level_notify(priv
, IWLCORE_START_EVT
);
5448 ieee80211_notify_mac(priv
->hw
, IEEE80211_NOTIFY_RE_ASSOC
);
5452 queue_work(priv
->workqueue
, &priv
->restart
);
5455 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
);
5457 static void __iwl4965_down(struct iwl_priv
*priv
)
5459 unsigned long flags
;
5460 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5461 struct ieee80211_conf
*conf
= NULL
;
5463 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
5465 conf
= ieee80211_get_hw_conf(priv
->hw
);
5468 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5470 iwl_leds_unregister(priv
);
5472 iwlcore_low_level_notify(priv
, IWLCORE_STOP_EVT
);
5474 iwlcore_clear_stations_table(priv
);
5476 /* Unblock any waiting calls */
5477 wake_up_interruptible_all(&priv
->wait_command_queue
);
5479 /* Wipe out the EXIT_PENDING status bit if we are not actually
5480 * exiting the module */
5482 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5484 /* stop and reset the on-board processor */
5485 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
5487 /* tell the device to stop sending interrupts */
5488 spin_lock_irqsave(&priv
->lock
, flags
);
5489 iwl4965_disable_interrupts(priv
);
5490 spin_unlock_irqrestore(&priv
->lock
, flags
);
5491 iwl_synchronize_irq(priv
);
5493 if (priv
->mac80211_registered
)
5494 ieee80211_stop_queues(priv
->hw
);
5496 /* If we have not previously called iwl4965_init() then
5497 * clear all bits but the RF Kill and SUSPEND bits and return */
5498 if (!iwl_is_init(priv
)) {
5499 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5501 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5503 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5504 STATUS_GEO_CONFIGURED
|
5505 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5510 /* ...otherwise clear out all the status bits but the RF Kill and
5511 * SUSPEND bits and continue taking the NIC down. */
5512 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5514 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5516 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5517 STATUS_GEO_CONFIGURED
|
5518 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5520 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
5523 spin_lock_irqsave(&priv
->lock
, flags
);
5524 iwl_clear_bit(priv
, CSR_GP_CNTRL
,
5525 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
5526 spin_unlock_irqrestore(&priv
->lock
, flags
);
5528 iwl4965_hw_txq_ctx_stop(priv
);
5529 iwl4965_hw_rxq_stop(priv
);
5531 spin_lock_irqsave(&priv
->lock
, flags
);
5532 if (!iwl_grab_nic_access(priv
)) {
5533 iwl_write_prph(priv
, APMG_CLK_DIS_REG
,
5534 APMG_CLK_VAL_DMA_CLK_RQT
);
5535 iwl_release_nic_access(priv
);
5537 spin_unlock_irqrestore(&priv
->lock
, flags
);
5541 iwl4965_hw_nic_stop_master(priv
);
5542 iwl_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
5543 iwl4965_hw_nic_reset(priv
);
5546 memset(&priv
->card_alive
, 0, sizeof(struct iwl4965_alive_resp
));
5548 if (priv
->ibss_beacon
)
5549 dev_kfree_skb(priv
->ibss_beacon
);
5550 priv
->ibss_beacon
= NULL
;
5552 /* clear out any free frames */
5553 iwl4965_clear_free_frames(priv
);
5556 static void iwl4965_down(struct iwl_priv
*priv
)
5558 mutex_lock(&priv
->mutex
);
5559 __iwl4965_down(priv
);
5560 mutex_unlock(&priv
->mutex
);
5562 iwl4965_cancel_deferred_work(priv
);
5565 #define MAX_HW_RESTARTS 5
5567 static int __iwl4965_up(struct iwl_priv
*priv
)
5572 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
5573 IWL_WARNING("Exit pending; will not bring the NIC up\n");
5577 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
5578 IWL_WARNING("Radio disabled by SW RF kill (module "
5580 iwl_rfkill_set_hw_state(priv
);
5584 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
5585 IWL_ERROR("ucode not available for device bringup\n");
5589 /* If platform's RF_KILL switch is NOT set to KILL */
5590 if (iwl_read32(priv
, CSR_GP_CNTRL
) &
5591 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
5592 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5594 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5595 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
5596 iwl_rfkill_set_hw_state(priv
);
5597 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
5602 iwl_rfkill_set_hw_state(priv
);
5603 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
5605 ret
= priv
->cfg
->ops
->lib
->hw_nic_init(priv
);
5607 IWL_ERROR("Unable to init nic\n");
5611 /* make sure rfkill handshake bits are cleared */
5612 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5613 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
5614 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
5616 /* clear (again), then enable host interrupts */
5617 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
5618 iwl4965_enable_interrupts(priv
);
5620 /* really make sure rfkill handshake bits are cleared */
5621 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5622 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5624 /* Copy original ucode data image from disk into backup cache.
5625 * This will be used to initialize the on-board processor's
5626 * data SRAM for a clean start when the runtime program first loads. */
5627 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
5628 priv
->ucode_data
.len
);
5630 /* We return success when we resume from suspend and rf_kill is on. */
5631 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
5634 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
5636 iwlcore_clear_stations_table(priv
);
5638 /* load bootstrap state machine,
5639 * load bootstrap program into processor's memory,
5640 * prepare to load the "initialize" uCode */
5641 ret
= priv
->cfg
->ops
->lib
->load_ucode(priv
);
5644 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", ret
);
5648 /* start card; "initialize" will load runtime ucode */
5649 iwl4965_nic_start(priv
);
5651 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
5656 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5657 __iwl4965_down(priv
);
5659 /* tried to restart and config the device for as long as our
5660 * patience could withstand */
5661 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
5666 /*****************************************************************************
5668 * Workqueue callbacks
5670 *****************************************************************************/
5672 static void iwl4965_bg_init_alive_start(struct work_struct
*data
)
5674 struct iwl_priv
*priv
=
5675 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
5677 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5680 mutex_lock(&priv
->mutex
);
5681 iwl4965_init_alive_start(priv
);
5682 mutex_unlock(&priv
->mutex
);
5685 static void iwl4965_bg_alive_start(struct work_struct
*data
)
5687 struct iwl_priv
*priv
=
5688 container_of(data
, struct iwl_priv
, alive_start
.work
);
5690 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5693 mutex_lock(&priv
->mutex
);
5694 iwl4965_alive_start(priv
);
5695 mutex_unlock(&priv
->mutex
);
5698 static void iwl4965_bg_rf_kill(struct work_struct
*work
)
5700 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, rf_kill
);
5702 wake_up_interruptible(&priv
->wait_command_queue
);
5704 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5707 mutex_lock(&priv
->mutex
);
5709 if (!iwl_is_rfkill(priv
)) {
5710 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
,
5711 "HW and/or SW RF Kill no longer active, restarting "
5713 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5714 queue_work(priv
->workqueue
, &priv
->restart
);
5716 /* make sure mac80211 stop sending Tx frame */
5717 if (priv
->mac80211_registered
)
5718 ieee80211_stop_queues(priv
->hw
);
5720 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
5721 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
5722 "disabled by SW switch\n");
5724 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
5725 "Kill switch must be turned off for "
5726 "wireless networking to work.\n");
5728 iwl_rfkill_set_hw_state(priv
);
5730 mutex_unlock(&priv
->mutex
);
5733 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
5735 static void iwl4965_bg_scan_check(struct work_struct
*data
)
5737 struct iwl_priv
*priv
=
5738 container_of(data
, struct iwl_priv
, scan_check
.work
);
5740 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5743 mutex_lock(&priv
->mutex
);
5744 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
5745 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
5746 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
,
5747 "Scan completion watchdog resetting adapter (%dms)\n",
5748 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
5750 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5751 iwl4965_send_scan_abort(priv
);
5753 mutex_unlock(&priv
->mutex
);
5756 static void iwl4965_bg_request_scan(struct work_struct
*data
)
5758 struct iwl_priv
*priv
=
5759 container_of(data
, struct iwl_priv
, request_scan
);
5760 struct iwl_host_cmd cmd
= {
5761 .id
= REPLY_SCAN_CMD
,
5762 .len
= sizeof(struct iwl4965_scan_cmd
),
5763 .meta
.flags
= CMD_SIZE_HUGE
,
5765 struct iwl4965_scan_cmd
*scan
;
5766 struct ieee80211_conf
*conf
= NULL
;
5768 enum ieee80211_band band
;
5772 conf
= ieee80211_get_hw_conf(priv
->hw
);
5774 mutex_lock(&priv
->mutex
);
5776 if (!iwl_is_ready(priv
)) {
5777 IWL_WARNING("request scan called when driver not ready.\n");
5781 /* Make sure the scan wasn't cancelled before this queued work
5782 * was given the chance to run... */
5783 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
5786 /* This should never be called or scheduled if there is currently
5787 * a scan active in the hardware. */
5788 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
5789 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
5790 "Ignoring second request.\n");
5795 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
5796 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
5800 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
5801 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
5805 if (iwl_is_rfkill(priv
)) {
5806 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
5810 if (!test_bit(STATUS_READY
, &priv
->status
)) {
5811 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
5815 if (!priv
->scan_bands
) {
5816 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
5821 priv
->scan
= kmalloc(sizeof(struct iwl4965_scan_cmd
) +
5822 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
5829 memset(scan
, 0, sizeof(struct iwl4965_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
5831 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
5832 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
5834 if (iwl_is_associated(priv
)) {
5837 u32 suspend_time
= 100;
5838 u32 scan_suspend_time
= 100;
5839 unsigned long flags
;
5841 IWL_DEBUG_INFO("Scanning while associated...\n");
5843 spin_lock_irqsave(&priv
->lock
, flags
);
5844 interval
= priv
->beacon_int
;
5845 spin_unlock_irqrestore(&priv
->lock
, flags
);
5847 scan
->suspend_time
= 0;
5848 scan
->max_out_time
= cpu_to_le32(200 * 1024);
5850 interval
= suspend_time
;
5852 extra
= (suspend_time
/ interval
) << 22;
5853 scan_suspend_time
= (extra
|
5854 ((suspend_time
% interval
) * 1024));
5855 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
5856 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
5857 scan_suspend_time
, interval
);
5860 /* We should add the ability for user to lock to PASSIVE ONLY */
5861 if (priv
->one_direct_scan
) {
5863 ("Kicking off one direct scan for '%s'\n",
5864 iwl4965_escape_essid(priv
->direct_ssid
,
5865 priv
->direct_ssid_len
));
5866 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
5867 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
5868 memcpy(scan
->direct_scan
[0].ssid
,
5869 priv
->direct_ssid
, priv
->direct_ssid_len
);
5871 } else if (!iwl_is_associated(priv
) && priv
->essid_len
) {
5872 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
5873 scan
->direct_scan
[0].len
= priv
->essid_len
;
5874 memcpy(scan
->direct_scan
[0].ssid
, priv
->essid
, priv
->essid_len
);
5880 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
5881 scan
->tx_cmd
.sta_id
= priv
->hw_setting
.bcast_sta_id
;
5882 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
5885 switch (priv
->scan_bands
) {
5887 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
5888 scan
->tx_cmd
.rate_n_flags
=
5889 iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP
,
5890 RATE_MCS_ANT_B_MSK
|RATE_MCS_CCK_MSK
);
5892 scan
->good_CRC_th
= 0;
5893 band
= IEEE80211_BAND_2GHZ
;
5897 scan
->tx_cmd
.rate_n_flags
=
5898 iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP
,
5899 RATE_MCS_ANT_B_MSK
);
5900 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
5901 band
= IEEE80211_BAND_5GHZ
;
5905 IWL_WARNING("Invalid scan band count\n");
5909 /* We don't build a direct scan probe request; the uCode will do
5910 * that based on the direct_mask added to each channel entry */
5911 cmd_len
= iwl4965_fill_probe_req(priv
, band
,
5912 (struct ieee80211_mgmt
*)scan
->data
,
5913 IWL_MAX_SCAN_SIZE
- sizeof(*scan
), 0);
5915 scan
->tx_cmd
.len
= cpu_to_le16(cmd_len
);
5916 /* select Rx chains */
5918 /* Force use of chains B and C (0x6) for scan Rx.
5919 * Avoid A (0x1) because of its off-channel reception on A-band.
5920 * MIMO is not used here, but value is required to make uCode happy. */
5921 scan
->rx_chain
= RXON_RX_CHAIN_DRIVER_FORCE_MSK
|
5922 cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS
) |
5923 (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS
) |
5924 (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS
));
5926 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
)
5927 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
5931 ("Initiating direct scan for %s.\n",
5932 iwl4965_escape_essid(priv
->essid
, priv
->essid_len
));
5933 scan
->channel_count
=
5934 iwl4965_get_channels_for_scan(
5935 priv
, band
, 1, /* active */
5937 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
5939 IWL_DEBUG_SCAN("Initiating indirect scan.\n");
5940 scan
->channel_count
=
5941 iwl4965_get_channels_for_scan(
5942 priv
, band
, 0, /* passive */
5944 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
5947 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
5948 scan
->channel_count
* sizeof(struct iwl4965_scan_channel
);
5950 scan
->len
= cpu_to_le16(cmd
.len
);
5952 set_bit(STATUS_SCAN_HW
, &priv
->status
);
5953 ret
= iwl_send_cmd_sync(priv
, &cmd
);
5957 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
5958 IWL_SCAN_CHECK_WATCHDOG
);
5960 mutex_unlock(&priv
->mutex
);
5964 /* inform mac80211 scan aborted */
5965 queue_work(priv
->workqueue
, &priv
->scan_completed
);
5966 mutex_unlock(&priv
->mutex
);
5969 static void iwl4965_bg_up(struct work_struct
*data
)
5971 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, up
);
5973 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5976 mutex_lock(&priv
->mutex
);
5978 mutex_unlock(&priv
->mutex
);
5981 static void iwl4965_bg_restart(struct work_struct
*data
)
5983 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
5985 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5989 queue_work(priv
->workqueue
, &priv
->up
);
5992 static void iwl4965_bg_rx_replenish(struct work_struct
*data
)
5994 struct iwl_priv
*priv
=
5995 container_of(data
, struct iwl_priv
, rx_replenish
);
5997 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6000 mutex_lock(&priv
->mutex
);
6001 iwl4965_rx_replenish(priv
);
6002 mutex_unlock(&priv
->mutex
);
6005 #define IWL_DELAY_NEXT_SCAN (HZ*2)
6007 static void iwl4965_post_associate(struct iwl_priv
*priv
)
6009 struct ieee80211_conf
*conf
= NULL
;
6011 DECLARE_MAC_BUF(mac
);
6013 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6014 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
6018 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
6020 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
6023 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6027 if (!priv
->vif
|| !priv
->is_open
)
6030 iwl4965_scan_cancel_timeout(priv
, 200);
6032 conf
= ieee80211_get_hw_conf(priv
->hw
);
6034 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6035 iwl4965_commit_rxon(priv
);
6037 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
6038 iwl4965_setup_rxon_timing(priv
);
6039 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6040 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6042 IWL_WARNING("REPLY_RXON_TIMING failed - "
6043 "Attempting to continue.\n");
6045 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6047 #ifdef CONFIG_IWL4965_HT
6048 if (priv
->current_ht_config
.is_ht
)
6049 iwl4965_set_rxon_ht(priv
, &priv
->current_ht_config
);
6050 #endif /* CONFIG_IWL4965_HT*/
6051 iwl4965_set_rxon_chain(priv
);
6052 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6054 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
6055 priv
->assoc_id
, priv
->beacon_int
);
6057 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6058 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6060 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6062 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6063 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6064 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
6066 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6068 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6069 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6073 iwl4965_commit_rxon(priv
);
6075 switch (priv
->iw_mode
) {
6076 case IEEE80211_IF_TYPE_STA
:
6077 iwl4965_rate_scale_init(priv
->hw
, IWL_AP_ID
);
6080 case IEEE80211_IF_TYPE_IBSS
:
6082 /* clear out the station table */
6083 iwlcore_clear_stations_table(priv
);
6085 iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0);
6086 iwl4965_rxon_add_station(priv
, priv
->bssid
, 0);
6087 iwl4965_rate_scale_init(priv
->hw
, IWL_STA_ID
);
6088 iwl4965_send_beacon_cmd(priv
);
6093 IWL_ERROR("%s Should not be called in %d mode\n",
6094 __FUNCTION__
, priv
->iw_mode
);
6098 iwl4965_sequence_reset(priv
);
6100 #ifdef CONFIG_IWL4965_SENSITIVITY
6101 /* Enable Rx differential gain and sensitivity calibrations */
6102 iwl4965_chain_noise_reset(priv
);
6103 priv
->start_calib
= 1;
6104 #endif /* CONFIG_IWL4965_SENSITIVITY */
6106 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6107 priv
->assoc_station_added
= 1;
6109 iwl4965_activate_qos(priv
, 0);
6111 /* we have just associated, don't start scan too early */
6112 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
6116 static void iwl4965_bg_post_associate(struct work_struct
*data
)
6118 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
,
6119 post_associate
.work
);
6121 mutex_lock(&priv
->mutex
);
6122 iwl4965_post_associate(priv
);
6123 mutex_unlock(&priv
->mutex
);
6127 static void iwl4965_bg_abort_scan(struct work_struct
*work
)
6129 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, abort_scan
);
6131 if (!iwl_is_ready(priv
))
6134 mutex_lock(&priv
->mutex
);
6136 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
6137 iwl4965_send_scan_abort(priv
);
6139 mutex_unlock(&priv
->mutex
);
6142 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
6144 static void iwl4965_bg_scan_completed(struct work_struct
*work
)
6146 struct iwl_priv
*priv
=
6147 container_of(work
, struct iwl_priv
, scan_completed
);
6149 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
, "SCAN complete scan\n");
6151 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6154 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
6155 iwl4965_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
6157 ieee80211_scan_completed(priv
->hw
);
6159 /* Since setting the TXPOWER may have been deferred while
6160 * performing the scan, fire one off */
6161 mutex_lock(&priv
->mutex
);
6162 iwl4965_hw_reg_send_txpower(priv
);
6163 mutex_unlock(&priv
->mutex
);
6166 /*****************************************************************************
6168 * mac80211 entry point functions
6170 *****************************************************************************/
6172 #define UCODE_READY_TIMEOUT (2 * HZ)
6174 static int iwl4965_mac_start(struct ieee80211_hw
*hw
)
6176 struct iwl_priv
*priv
= hw
->priv
;
6179 IWL_DEBUG_MAC80211("enter\n");
6181 if (pci_enable_device(priv
->pci_dev
)) {
6182 IWL_ERROR("Fail to pci_enable_device\n");
6185 pci_restore_state(priv
->pci_dev
);
6186 pci_enable_msi(priv
->pci_dev
);
6188 ret
= request_irq(priv
->pci_dev
->irq
, iwl4965_isr
, IRQF_SHARED
,
6191 IWL_ERROR("Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
6192 goto out_disable_msi
;
6195 /* we should be verifying the device is ready to be opened */
6196 mutex_lock(&priv
->mutex
);
6198 memset(&priv
->staging_rxon
, 0, sizeof(struct iwl4965_rxon_cmd
));
6199 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
6200 * ucode filename and max sizes are card-specific. */
6202 if (!priv
->ucode_code
.len
) {
6203 ret
= iwl4965_read_ucode(priv
);
6205 IWL_ERROR("Could not read microcode: %d\n", ret
);
6206 mutex_unlock(&priv
->mutex
);
6207 goto out_release_irq
;
6211 ret
= __iwl4965_up(priv
);
6213 mutex_unlock(&priv
->mutex
);
6216 goto out_release_irq
;
6218 IWL_DEBUG_INFO("Start UP work done.\n");
6220 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
6223 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
6224 * mac80211 will not be run successfully. */
6225 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
6226 test_bit(STATUS_READY
, &priv
->status
),
6227 UCODE_READY_TIMEOUT
);
6229 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6230 IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
6231 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
6233 goto out_release_irq
;
6238 IWL_DEBUG_MAC80211("leave\n");
6242 free_irq(priv
->pci_dev
->irq
, priv
);
6244 pci_disable_msi(priv
->pci_dev
);
6245 pci_disable_device(priv
->pci_dev
);
6247 IWL_DEBUG_MAC80211("leave - failed\n");
6251 static void iwl4965_mac_stop(struct ieee80211_hw
*hw
)
6253 struct iwl_priv
*priv
= hw
->priv
;
6255 IWL_DEBUG_MAC80211("enter\n");
6257 if (!priv
->is_open
) {
6258 IWL_DEBUG_MAC80211("leave - skip\n");
6264 if (iwl_is_ready_rf(priv
)) {
6265 /* stop mac, cancel any scan request and clear
6266 * RXON_FILTER_ASSOC_MSK BIT
6268 mutex_lock(&priv
->mutex
);
6269 iwl4965_scan_cancel_timeout(priv
, 100);
6270 cancel_delayed_work(&priv
->post_associate
);
6271 mutex_unlock(&priv
->mutex
);
6276 flush_workqueue(priv
->workqueue
);
6277 free_irq(priv
->pci_dev
->irq
, priv
);
6278 pci_disable_msi(priv
->pci_dev
);
6279 pci_save_state(priv
->pci_dev
);
6280 pci_disable_device(priv
->pci_dev
);
6282 IWL_DEBUG_MAC80211("leave\n");
6285 static int iwl4965_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
6286 struct ieee80211_tx_control
*ctl
)
6288 struct iwl_priv
*priv
= hw
->priv
;
6290 IWL_DEBUG_MAC80211("enter\n");
6292 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
6293 IWL_DEBUG_MAC80211("leave - monitor\n");
6297 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
6298 ctl
->tx_rate
->bitrate
);
6300 if (iwl4965_tx_skb(priv
, skb
, ctl
))
6301 dev_kfree_skb_any(skb
);
6303 IWL_DEBUG_MAC80211("leave\n");
6307 static int iwl4965_mac_add_interface(struct ieee80211_hw
*hw
,
6308 struct ieee80211_if_init_conf
*conf
)
6310 struct iwl_priv
*priv
= hw
->priv
;
6311 unsigned long flags
;
6312 DECLARE_MAC_BUF(mac
);
6314 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
6317 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
6321 spin_lock_irqsave(&priv
->lock
, flags
);
6322 priv
->vif
= conf
->vif
;
6324 spin_unlock_irqrestore(&priv
->lock
, flags
);
6326 mutex_lock(&priv
->mutex
);
6328 if (conf
->mac_addr
) {
6329 IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac
, conf
->mac_addr
));
6330 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
6333 if (iwl_is_ready(priv
))
6334 iwl4965_set_mode(priv
, conf
->type
);
6336 mutex_unlock(&priv
->mutex
);
6338 IWL_DEBUG_MAC80211("leave\n");
6343 * iwl4965_mac_config - mac80211 config callback
6345 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
6346 * be set inappropriately and the driver currently sets the hardware up to
6347 * use it whenever needed.
6349 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
6351 struct iwl_priv
*priv
= hw
->priv
;
6352 const struct iwl_channel_info
*ch_info
;
6353 unsigned long flags
;
6356 mutex_lock(&priv
->mutex
);
6357 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
6359 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
6361 if (!iwl_is_ready(priv
)) {
6362 IWL_DEBUG_MAC80211("leave - not ready\n");
6367 if (unlikely(!priv
->cfg
->mod_params
->disable_hw_scan
&&
6368 test_bit(STATUS_SCANNING
, &priv
->status
))) {
6369 IWL_DEBUG_MAC80211("leave - scanning\n");
6370 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
6371 mutex_unlock(&priv
->mutex
);
6375 spin_lock_irqsave(&priv
->lock
, flags
);
6377 ch_info
= iwl_get_channel_info(priv
, conf
->channel
->band
,
6378 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
6379 if (!is_channel_valid(ch_info
)) {
6380 IWL_DEBUG_MAC80211("leave - invalid channel\n");
6381 spin_unlock_irqrestore(&priv
->lock
, flags
);
6386 #ifdef CONFIG_IWL4965_HT
6387 /* if we are switching from ht to 2.4 clear flags
6388 * from any ht related info since 2.4 does not
6390 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != conf
->channel
->hw_value
)
6391 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
6392 && !(conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
)
6395 priv
->staging_rxon
.flags
= 0;
6396 #endif /* CONFIG_IWL4965_HT */
6398 iwlcore_set_rxon_channel(priv
, conf
->channel
->band
,
6399 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
6401 iwl4965_set_flags_for_phymode(priv
, conf
->channel
->band
);
6403 /* The list of supported rates and rate mask can be different
6404 * for each band; since the band may have changed, reset
6405 * the rate mask to what mac80211 lists */
6406 iwl4965_set_rate(priv
);
6408 spin_unlock_irqrestore(&priv
->lock
, flags
);
6410 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
6411 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
6412 iwl4965_hw_channel_switch(priv
, conf
->channel
);
6417 if (priv
->cfg
->ops
->lib
->radio_kill_sw
)
6418 priv
->cfg
->ops
->lib
->radio_kill_sw(priv
, !conf
->radio_enabled
);
6420 if (!conf
->radio_enabled
) {
6421 IWL_DEBUG_MAC80211("leave - radio disabled\n");
6425 if (iwl_is_rfkill(priv
)) {
6426 IWL_DEBUG_MAC80211("leave - RF kill\n");
6431 iwl4965_set_rate(priv
);
6433 if (memcmp(&priv
->active_rxon
,
6434 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
6435 iwl4965_commit_rxon(priv
);
6437 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
6439 IWL_DEBUG_MAC80211("leave\n");
6442 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
6443 mutex_unlock(&priv
->mutex
);
6447 static void iwl4965_config_ap(struct iwl_priv
*priv
)
6451 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6454 /* The following should be done only at AP bring up */
6455 if ((priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) == 0) {
6457 /* RXON - unassoc (to set timing command) */
6458 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6459 iwl4965_commit_rxon(priv
);
6462 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
6463 iwl4965_setup_rxon_timing(priv
);
6464 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6465 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6467 IWL_WARNING("REPLY_RXON_TIMING failed - "
6468 "Attempting to continue.\n");
6470 iwl4965_set_rxon_chain(priv
);
6472 /* FIXME: what should be the assoc_id for AP? */
6473 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6474 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6475 priv
->staging_rxon
.flags
|=
6476 RXON_FLG_SHORT_PREAMBLE_MSK
;
6478 priv
->staging_rxon
.flags
&=
6479 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6481 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6482 if (priv
->assoc_capability
&
6483 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6484 priv
->staging_rxon
.flags
|=
6485 RXON_FLG_SHORT_SLOT_MSK
;
6487 priv
->staging_rxon
.flags
&=
6488 ~RXON_FLG_SHORT_SLOT_MSK
;
6490 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6491 priv
->staging_rxon
.flags
&=
6492 ~RXON_FLG_SHORT_SLOT_MSK
;
6494 /* restore RXON assoc */
6495 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6496 iwl4965_commit_rxon(priv
);
6497 iwl4965_activate_qos(priv
, 1);
6498 iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0);
6500 iwl4965_send_beacon_cmd(priv
);
6502 /* FIXME - we need to add code here to detect a totally new
6503 * configuration, reset the AP, unassoc, rxon timing, assoc,
6504 * clear sta table, add BCAST sta... */
6507 static int iwl4965_mac_config_interface(struct ieee80211_hw
*hw
,
6508 struct ieee80211_vif
*vif
,
6509 struct ieee80211_if_conf
*conf
)
6511 struct iwl_priv
*priv
= hw
->priv
;
6512 DECLARE_MAC_BUF(mac
);
6513 unsigned long flags
;
6519 if (priv
->vif
!= vif
) {
6520 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
6521 mutex_unlock(&priv
->mutex
);
6525 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
6526 (!conf
->beacon
|| !conf
->ssid_len
)) {
6528 ("Leaving in AP mode because HostAPD is not ready.\n");
6532 if (!iwl_is_alive(priv
))
6535 mutex_lock(&priv
->mutex
);
6538 IWL_DEBUG_MAC80211("bssid: %s\n",
6539 print_mac(mac
, conf
->bssid
));
6542 * very dubious code was here; the probe filtering flag is never set:
6544 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
6545 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
6548 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6550 conf
->bssid
= priv
->mac_addr
;
6551 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
6552 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
6553 print_mac(mac
, conf
->bssid
));
6555 if (priv
->ibss_beacon
)
6556 dev_kfree_skb(priv
->ibss_beacon
);
6558 priv
->ibss_beacon
= conf
->beacon
;
6561 if (iwl_is_rfkill(priv
))
6564 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
6565 !is_multicast_ether_addr(conf
->bssid
)) {
6566 /* If there is currently a HW scan going on in the background
6567 * then we need to cancel it else the RXON below will fail. */
6568 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
6569 IWL_WARNING("Aborted scan still in progress "
6571 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
6572 mutex_unlock(&priv
->mutex
);
6575 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
6577 /* TODO: Audit driver for usage of these members and see
6578 * if mac80211 deprecates them (priv->bssid looks like it
6579 * shouldn't be there, but I haven't scanned the IBSS code
6580 * to verify) - jpk */
6581 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
6583 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
6584 iwl4965_config_ap(priv
);
6586 rc
= iwl4965_commit_rxon(priv
);
6587 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
6588 iwl4965_rxon_add_station(
6589 priv
, priv
->active_rxon
.bssid_addr
, 1);
6593 iwl4965_scan_cancel_timeout(priv
, 100);
6594 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6595 iwl4965_commit_rxon(priv
);
6599 spin_lock_irqsave(&priv
->lock
, flags
);
6600 if (!conf
->ssid_len
)
6601 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
6603 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
6605 priv
->essid_len
= conf
->ssid_len
;
6606 spin_unlock_irqrestore(&priv
->lock
, flags
);
6608 IWL_DEBUG_MAC80211("leave\n");
6609 mutex_unlock(&priv
->mutex
);
6614 static void iwl4965_configure_filter(struct ieee80211_hw
*hw
,
6615 unsigned int changed_flags
,
6616 unsigned int *total_flags
,
6617 int mc_count
, struct dev_addr_list
*mc_list
)
6621 * see also iwl4965_connection_init_rx_config
6626 static void iwl4965_mac_remove_interface(struct ieee80211_hw
*hw
,
6627 struct ieee80211_if_init_conf
*conf
)
6629 struct iwl_priv
*priv
= hw
->priv
;
6631 IWL_DEBUG_MAC80211("enter\n");
6633 mutex_lock(&priv
->mutex
);
6635 if (iwl_is_ready_rf(priv
)) {
6636 iwl4965_scan_cancel_timeout(priv
, 100);
6637 cancel_delayed_work(&priv
->post_associate
);
6638 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6639 iwl4965_commit_rxon(priv
);
6641 if (priv
->vif
== conf
->vif
) {
6643 memset(priv
->bssid
, 0, ETH_ALEN
);
6644 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
6645 priv
->essid_len
= 0;
6647 mutex_unlock(&priv
->mutex
);
6649 IWL_DEBUG_MAC80211("leave\n");
6654 #ifdef CONFIG_IWL4965_HT
6655 static void iwl4965_ht_conf(struct iwl_priv
*priv
,
6656 struct ieee80211_bss_conf
*bss_conf
)
6658 struct ieee80211_ht_info
*ht_conf
= bss_conf
->ht_conf
;
6659 struct ieee80211_ht_bss_info
*ht_bss_conf
= bss_conf
->ht_bss_conf
;
6660 struct iwl_ht_info
*iwl_conf
= &priv
->current_ht_config
;
6662 IWL_DEBUG_MAC80211("enter: \n");
6664 iwl_conf
->is_ht
= bss_conf
->assoc_ht
;
6666 if (!iwl_conf
->is_ht
)
6669 priv
->ps_mode
= (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
6671 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_20
)
6672 iwl_conf
->sgf
|= 0x1;
6673 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_40
)
6674 iwl_conf
->sgf
|= 0x2;
6676 iwl_conf
->is_green_field
= !!(ht_conf
->cap
& IEEE80211_HT_CAP_GRN_FLD
);
6677 iwl_conf
->max_amsdu_size
=
6678 !!(ht_conf
->cap
& IEEE80211_HT_CAP_MAX_AMSDU
);
6680 iwl_conf
->supported_chan_width
=
6681 !!(ht_conf
->cap
& IEEE80211_HT_CAP_SUP_WIDTH
);
6682 iwl_conf
->extension_chan_offset
=
6683 ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_SEC_OFFSET
;
6684 /* If no above or below channel supplied disable FAT channel */
6685 if (iwl_conf
->extension_chan_offset
!= IWL_EXT_CHANNEL_OFFSET_ABOVE
&&
6686 iwl_conf
->extension_chan_offset
!= IWL_EXT_CHANNEL_OFFSET_BELOW
)
6687 iwl_conf
->supported_chan_width
= 0;
6689 iwl_conf
->tx_mimo_ps_mode
=
6690 (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
6691 memcpy(iwl_conf
->supp_mcs_set
, ht_conf
->supp_mcs_set
, 16);
6693 iwl_conf
->control_channel
= ht_bss_conf
->primary_channel
;
6694 iwl_conf
->tx_chan_width
=
6695 !!(ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_WIDTH
);
6696 iwl_conf
->ht_protection
=
6697 ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_HT_PROTECTION
;
6698 iwl_conf
->non_GF_STA_present
=
6699 !!(ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_NON_GF_STA_PRSNT
);
6701 IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf
->control_channel
);
6702 IWL_DEBUG_MAC80211("leave\n");
6705 static inline void iwl4965_ht_conf(struct iwl_priv
*priv
,
6706 struct ieee80211_bss_conf
*bss_conf
)
6711 #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
6712 static void iwl4965_bss_info_changed(struct ieee80211_hw
*hw
,
6713 struct ieee80211_vif
*vif
,
6714 struct ieee80211_bss_conf
*bss_conf
,
6717 struct iwl_priv
*priv
= hw
->priv
;
6719 IWL_DEBUG_MAC80211("changes = 0x%X\n", changes
);
6721 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
6722 IWL_DEBUG_MAC80211("ERP_PREAMBLE %d\n",
6723 bss_conf
->use_short_preamble
);
6724 if (bss_conf
->use_short_preamble
)
6725 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6727 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6730 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
6731 IWL_DEBUG_MAC80211("ERP_CTS %d\n", bss_conf
->use_cts_prot
);
6732 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
6733 priv
->staging_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
6735 priv
->staging_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
6738 if (changes
& BSS_CHANGED_HT
) {
6739 IWL_DEBUG_MAC80211("HT %d\n", bss_conf
->assoc_ht
);
6740 iwl4965_ht_conf(priv
, bss_conf
);
6741 iwl4965_set_rxon_chain(priv
);
6744 if (changes
& BSS_CHANGED_ASSOC
) {
6745 IWL_DEBUG_MAC80211("ASSOC %d\n", bss_conf
->assoc
);
6746 /* This should never happen as this function should
6747 * never be called from interrupt context. */
6748 if (WARN_ON_ONCE(in_interrupt()))
6750 if (bss_conf
->assoc
) {
6751 priv
->assoc_id
= bss_conf
->aid
;
6752 priv
->beacon_int
= bss_conf
->beacon_int
;
6753 priv
->timestamp
= bss_conf
->timestamp
;
6754 priv
->assoc_capability
= bss_conf
->assoc_capability
;
6755 priv
->next_scan_jiffies
= jiffies
+
6756 IWL_DELAY_NEXT_SCAN_AFTER_ASSOC
;
6757 mutex_lock(&priv
->mutex
);
6758 iwl4965_post_associate(priv
);
6759 mutex_unlock(&priv
->mutex
);
6762 IWL_DEBUG_MAC80211("DISASSOC %d\n", bss_conf
->assoc
);
6764 } else if (changes
&& iwl_is_associated(priv
) && priv
->assoc_id
) {
6765 IWL_DEBUG_MAC80211("Associated Changes %d\n", changes
);
6766 iwl4965_send_rxon_assoc(priv
);
6771 static int iwl4965_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
6774 unsigned long flags
;
6775 struct iwl_priv
*priv
= hw
->priv
;
6777 IWL_DEBUG_MAC80211("enter\n");
6779 mutex_lock(&priv
->mutex
);
6780 spin_lock_irqsave(&priv
->lock
, flags
);
6782 if (!iwl_is_ready_rf(priv
)) {
6784 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
6788 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
6790 IWL_ERROR("ERROR: APs don't scan\n");
6794 /* we don't schedule scan within next_scan_jiffies period */
6795 if (priv
->next_scan_jiffies
&&
6796 time_after(priv
->next_scan_jiffies
, jiffies
)) {
6800 /* if we just finished scan ask for delay */
6801 if (priv
->last_scan_jiffies
&& time_after(priv
->last_scan_jiffies
+
6802 IWL_DELAY_NEXT_SCAN
, jiffies
)) {
6807 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
6808 iwl4965_escape_essid(ssid
, len
), (int)len
);
6810 priv
->one_direct_scan
= 1;
6811 priv
->direct_ssid_len
= (u8
)
6812 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
6813 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
6815 priv
->one_direct_scan
= 0;
6817 rc
= iwl4965_scan_initiate(priv
);
6819 IWL_DEBUG_MAC80211("leave\n");
6822 spin_unlock_irqrestore(&priv
->lock
, flags
);
6823 mutex_unlock(&priv
->mutex
);
6828 static void iwl4965_mac_update_tkip_key(struct ieee80211_hw
*hw
,
6829 struct ieee80211_key_conf
*keyconf
, const u8
*addr
,
6830 u32 iv32
, u16
*phase1key
)
6832 struct iwl_priv
*priv
= hw
->priv
;
6833 u8 sta_id
= IWL_INVALID_STATION
;
6834 unsigned long flags
;
6835 __le16 key_flags
= 0;
6837 DECLARE_MAC_BUF(mac
);
6839 IWL_DEBUG_MAC80211("enter\n");
6841 sta_id
= iwl4965_hw_find_station(priv
, addr
);
6842 if (sta_id
== IWL_INVALID_STATION
) {
6843 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
6844 print_mac(mac
, addr
));
6848 iwl4965_scan_cancel_timeout(priv
, 100);
6850 key_flags
|= (STA_KEY_FLG_TKIP
| STA_KEY_FLG_MAP_KEY_MSK
);
6851 key_flags
|= cpu_to_le16(keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
6852 key_flags
&= ~STA_KEY_FLG_INVALID
;
6854 if (sta_id
== priv
->hw_setting
.bcast_sta_id
)
6855 key_flags
|= STA_KEY_MULTICAST_MSK
;
6857 spin_lock_irqsave(&priv
->sta_lock
, flags
);
6859 priv
->stations
[sta_id
].sta
.key
.key_offset
=
6860 iwl_get_free_ucode_key_index(priv
);
6861 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
6862 priv
->stations
[sta_id
].sta
.key
.tkip_rx_tsc_byte2
= (u8
) iv32
;
6864 for (i
= 0; i
< 5; i
++)
6865 priv
->stations
[sta_id
].sta
.key
.tkip_rx_ttak
[i
] =
6866 cpu_to_le16(phase1key
[i
]);
6868 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
6869 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
6871 iwl4965_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
6873 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
6875 IWL_DEBUG_MAC80211("leave\n");
6878 static int iwl4965_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
6879 const u8
*local_addr
, const u8
*addr
,
6880 struct ieee80211_key_conf
*key
)
6882 struct iwl_priv
*priv
= hw
->priv
;
6883 DECLARE_MAC_BUF(mac
);
6885 u8 sta_id
= IWL_INVALID_STATION
;
6886 u8 is_default_wep_key
= 0;
6888 IWL_DEBUG_MAC80211("enter\n");
6890 if (!priv
->cfg
->mod_params
->hw_crypto
) {
6891 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
6895 if (is_zero_ether_addr(addr
))
6896 /* only support pairwise keys */
6899 sta_id
= iwl4965_hw_find_station(priv
, addr
);
6900 if (sta_id
== IWL_INVALID_STATION
) {
6901 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
6902 print_mac(mac
, addr
));
6907 mutex_lock(&priv
->mutex
);
6908 iwl4965_scan_cancel_timeout(priv
, 100);
6909 mutex_unlock(&priv
->mutex
);
6911 /* If we are getting WEP group key and we didn't receive any key mapping
6912 * so far, we are in legacy wep mode (group key only), otherwise we are
6914 * In legacy wep mode, we use another host command to the uCode */
6915 if (key
->alg
== ALG_WEP
&& sta_id
== priv
->hw_setting
.bcast_sta_id
&&
6916 priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
6918 is_default_wep_key
= !priv
->key_mapping_key
;
6920 is_default_wep_key
= priv
->default_wep_key
;
6925 if (is_default_wep_key
)
6926 ret
= iwl_set_default_wep_key(priv
, key
);
6928 ret
= iwl_set_dynamic_key(priv
, key
, sta_id
);
6930 IWL_DEBUG_MAC80211("enable hwcrypto key\n");
6933 if (is_default_wep_key
)
6934 ret
= iwl_remove_default_wep_key(priv
, key
);
6936 ret
= iwl_remove_dynamic_key(priv
, sta_id
);
6938 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
6944 IWL_DEBUG_MAC80211("leave\n");
6949 static int iwl4965_mac_conf_tx(struct ieee80211_hw
*hw
, int queue
,
6950 const struct ieee80211_tx_queue_params
*params
)
6952 struct iwl_priv
*priv
= hw
->priv
;
6953 unsigned long flags
;
6956 IWL_DEBUG_MAC80211("enter\n");
6958 if (!iwl_is_ready_rf(priv
)) {
6959 IWL_DEBUG_MAC80211("leave - RF not ready\n");
6963 if (queue
>= AC_NUM
) {
6964 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
6968 if (!priv
->qos_data
.qos_enable
) {
6969 priv
->qos_data
.qos_active
= 0;
6970 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
6973 q
= AC_NUM
- 1 - queue
;
6975 spin_lock_irqsave(&priv
->lock
, flags
);
6977 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
6978 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
6979 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
6980 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
6981 cpu_to_le16((params
->txop
* 32));
6983 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
6984 priv
->qos_data
.qos_active
= 1;
6986 spin_unlock_irqrestore(&priv
->lock
, flags
);
6988 mutex_lock(&priv
->mutex
);
6989 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
6990 iwl4965_activate_qos(priv
, 1);
6991 else if (priv
->assoc_id
&& iwl_is_associated(priv
))
6992 iwl4965_activate_qos(priv
, 0);
6994 mutex_unlock(&priv
->mutex
);
6996 IWL_DEBUG_MAC80211("leave\n");
7000 static int iwl4965_mac_get_tx_stats(struct ieee80211_hw
*hw
,
7001 struct ieee80211_tx_queue_stats
*stats
)
7003 struct iwl_priv
*priv
= hw
->priv
;
7005 struct iwl4965_tx_queue
*txq
;
7006 struct iwl4965_queue
*q
;
7007 unsigned long flags
;
7009 IWL_DEBUG_MAC80211("enter\n");
7011 if (!iwl_is_ready_rf(priv
)) {
7012 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7016 spin_lock_irqsave(&priv
->lock
, flags
);
7018 for (i
= 0; i
< AC_NUM
; i
++) {
7019 txq
= &priv
->txq
[i
];
7021 avail
= iwl4965_queue_space(q
);
7023 stats
->data
[i
].len
= q
->n_window
- avail
;
7024 stats
->data
[i
].limit
= q
->n_window
- q
->high_mark
;
7025 stats
->data
[i
].count
= q
->n_window
;
7028 spin_unlock_irqrestore(&priv
->lock
, flags
);
7030 IWL_DEBUG_MAC80211("leave\n");
7035 static int iwl4965_mac_get_stats(struct ieee80211_hw
*hw
,
7036 struct ieee80211_low_level_stats
*stats
)
7038 IWL_DEBUG_MAC80211("enter\n");
7039 IWL_DEBUG_MAC80211("leave\n");
7044 static u64
iwl4965_mac_get_tsf(struct ieee80211_hw
*hw
)
7046 IWL_DEBUG_MAC80211("enter\n");
7047 IWL_DEBUG_MAC80211("leave\n");
7052 static void iwl4965_mac_reset_tsf(struct ieee80211_hw
*hw
)
7054 struct iwl_priv
*priv
= hw
->priv
;
7055 unsigned long flags
;
7057 mutex_lock(&priv
->mutex
);
7058 IWL_DEBUG_MAC80211("enter\n");
7060 priv
->lq_mngr
.lq_ready
= 0;
7061 #ifdef CONFIG_IWL4965_HT
7062 spin_lock_irqsave(&priv
->lock
, flags
);
7063 memset(&priv
->current_ht_config
, 0, sizeof(struct iwl_ht_info
));
7064 spin_unlock_irqrestore(&priv
->lock
, flags
);
7065 #endif /* CONFIG_IWL4965_HT */
7067 iwlcore_reset_qos(priv
);
7069 cancel_delayed_work(&priv
->post_associate
);
7071 spin_lock_irqsave(&priv
->lock
, flags
);
7073 priv
->assoc_capability
= 0;
7074 priv
->assoc_station_added
= 0;
7076 /* new association get rid of ibss beacon skb */
7077 if (priv
->ibss_beacon
)
7078 dev_kfree_skb(priv
->ibss_beacon
);
7080 priv
->ibss_beacon
= NULL
;
7082 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
7083 priv
->timestamp
= 0;
7084 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
7085 priv
->beacon_int
= 0;
7087 spin_unlock_irqrestore(&priv
->lock
, flags
);
7089 if (!iwl_is_ready_rf(priv
)) {
7090 IWL_DEBUG_MAC80211("leave - not ready\n");
7091 mutex_unlock(&priv
->mutex
);
7095 /* we are restarting association process
7096 * clear RXON_FILTER_ASSOC_MSK bit
7098 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
7099 iwl4965_scan_cancel_timeout(priv
, 100);
7100 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7101 iwl4965_commit_rxon(priv
);
7104 /* Per mac80211.h: This is only used in IBSS mode... */
7105 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7107 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
7108 mutex_unlock(&priv
->mutex
);
7112 priv
->only_active_channel
= 0;
7114 iwl4965_set_rate(priv
);
7116 mutex_unlock(&priv
->mutex
);
7118 IWL_DEBUG_MAC80211("leave\n");
7121 static int iwl4965_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
7122 struct ieee80211_tx_control
*control
)
7124 struct iwl_priv
*priv
= hw
->priv
;
7125 unsigned long flags
;
7127 mutex_lock(&priv
->mutex
);
7128 IWL_DEBUG_MAC80211("enter\n");
7130 if (!iwl_is_ready_rf(priv
)) {
7131 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7132 mutex_unlock(&priv
->mutex
);
7136 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7137 IWL_DEBUG_MAC80211("leave - not IBSS\n");
7138 mutex_unlock(&priv
->mutex
);
7142 spin_lock_irqsave(&priv
->lock
, flags
);
7144 if (priv
->ibss_beacon
)
7145 dev_kfree_skb(priv
->ibss_beacon
);
7147 priv
->ibss_beacon
= skb
;
7151 IWL_DEBUG_MAC80211("leave\n");
7152 spin_unlock_irqrestore(&priv
->lock
, flags
);
7154 iwlcore_reset_qos(priv
);
7156 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
7158 mutex_unlock(&priv
->mutex
);
7163 /*****************************************************************************
7167 *****************************************************************************/
7169 #ifdef CONFIG_IWLWIFI_DEBUG
7172 * The following adds a new attribute to the sysfs representation
7173 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
7174 * used for controlling the debug level.
7176 * See the level definitions in iwl for details.
7179 static ssize_t
show_debug_level(struct device_driver
*d
, char *buf
)
7181 return sprintf(buf
, "0x%08X\n", iwl_debug_level
);
7183 static ssize_t
store_debug_level(struct device_driver
*d
,
7184 const char *buf
, size_t count
)
7186 char *p
= (char *)buf
;
7189 val
= simple_strtoul(p
, &p
, 0);
7191 printk(KERN_INFO DRV_NAME
7192 ": %s is not in hex or decimal form.\n", buf
);
7194 iwl_debug_level
= val
;
7196 return strnlen(buf
, count
);
7199 static DRIVER_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
7200 show_debug_level
, store_debug_level
);
7202 #endif /* CONFIG_IWLWIFI_DEBUG */
7205 static ssize_t
show_temperature(struct device
*d
,
7206 struct device_attribute
*attr
, char *buf
)
7208 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7210 if (!iwl_is_alive(priv
))
7213 return sprintf(buf
, "%d\n", iwl4965_hw_get_temperature(priv
));
7216 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
7218 static ssize_t
show_rs_window(struct device
*d
,
7219 struct device_attribute
*attr
,
7222 struct iwl_priv
*priv
= d
->driver_data
;
7223 return iwl4965_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
7225 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
7227 static ssize_t
show_tx_power(struct device
*d
,
7228 struct device_attribute
*attr
, char *buf
)
7230 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7231 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
7234 static ssize_t
store_tx_power(struct device
*d
,
7235 struct device_attribute
*attr
,
7236 const char *buf
, size_t count
)
7238 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7239 char *p
= (char *)buf
;
7242 val
= simple_strtoul(p
, &p
, 10);
7244 printk(KERN_INFO DRV_NAME
7245 ": %s is not in decimal form.\n", buf
);
7247 iwl4965_hw_reg_set_txpower(priv
, val
);
7252 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
7254 static ssize_t
show_flags(struct device
*d
,
7255 struct device_attribute
*attr
, char *buf
)
7257 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7259 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
7262 static ssize_t
store_flags(struct device
*d
,
7263 struct device_attribute
*attr
,
7264 const char *buf
, size_t count
)
7266 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7267 u32 flags
= simple_strtoul(buf
, NULL
, 0);
7269 mutex_lock(&priv
->mutex
);
7270 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
7271 /* Cancel any currently running scans... */
7272 if (iwl4965_scan_cancel_timeout(priv
, 100))
7273 IWL_WARNING("Could not cancel scan.\n");
7275 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
7277 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
7278 iwl4965_commit_rxon(priv
);
7281 mutex_unlock(&priv
->mutex
);
7286 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
7288 static ssize_t
show_filter_flags(struct device
*d
,
7289 struct device_attribute
*attr
, char *buf
)
7291 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7293 return sprintf(buf
, "0x%04X\n",
7294 le32_to_cpu(priv
->active_rxon
.filter_flags
));
7297 static ssize_t
store_filter_flags(struct device
*d
,
7298 struct device_attribute
*attr
,
7299 const char *buf
, size_t count
)
7301 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7302 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
7304 mutex_lock(&priv
->mutex
);
7305 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
7306 /* Cancel any currently running scans... */
7307 if (iwl4965_scan_cancel_timeout(priv
, 100))
7308 IWL_WARNING("Could not cancel scan.\n");
7310 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
7311 "0x%04X\n", filter_flags
);
7312 priv
->staging_rxon
.filter_flags
=
7313 cpu_to_le32(filter_flags
);
7314 iwl4965_commit_rxon(priv
);
7317 mutex_unlock(&priv
->mutex
);
7322 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
7323 store_filter_flags
);
7325 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
7327 static ssize_t
show_measurement(struct device
*d
,
7328 struct device_attribute
*attr
, char *buf
)
7330 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7331 struct iwl4965_spectrum_notification measure_report
;
7332 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
7333 u8
*data
= (u8
*) & measure_report
;
7334 unsigned long flags
;
7336 spin_lock_irqsave(&priv
->lock
, flags
);
7337 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
7338 spin_unlock_irqrestore(&priv
->lock
, flags
);
7341 memcpy(&measure_report
, &priv
->measure_report
, size
);
7342 priv
->measurement_status
= 0;
7343 spin_unlock_irqrestore(&priv
->lock
, flags
);
7345 while (size
&& (PAGE_SIZE
- len
)) {
7346 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7347 PAGE_SIZE
- len
, 1);
7349 if (PAGE_SIZE
- len
)
7353 size
-= min(size
, 16U);
7359 static ssize_t
store_measurement(struct device
*d
,
7360 struct device_attribute
*attr
,
7361 const char *buf
, size_t count
)
7363 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7364 struct ieee80211_measurement_params params
= {
7365 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
7366 .start_time
= cpu_to_le64(priv
->last_tsf
),
7367 .duration
= cpu_to_le16(1),
7369 u8 type
= IWL_MEASURE_BASIC
;
7375 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
7376 channel
= simple_strtoul(p
, NULL
, 0);
7378 params
.channel
= channel
;
7381 while (*p
&& *p
!= ' ')
7384 type
= simple_strtoul(p
+ 1, NULL
, 0);
7387 IWL_DEBUG_INFO("Invoking measurement of type %d on "
7388 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
7389 iwl4965_get_measurement(priv
, ¶ms
, type
);
7394 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
7395 show_measurement
, store_measurement
);
7396 #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
7398 static ssize_t
store_retry_rate(struct device
*d
,
7399 struct device_attribute
*attr
,
7400 const char *buf
, size_t count
)
7402 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7404 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
7405 if (priv
->retry_rate
<= 0)
7406 priv
->retry_rate
= 1;
7411 static ssize_t
show_retry_rate(struct device
*d
,
7412 struct device_attribute
*attr
, char *buf
)
7414 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7415 return sprintf(buf
, "%d", priv
->retry_rate
);
7418 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
7421 static ssize_t
store_power_level(struct device
*d
,
7422 struct device_attribute
*attr
,
7423 const char *buf
, size_t count
)
7425 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7429 mode
= simple_strtoul(buf
, NULL
, 0);
7430 mutex_lock(&priv
->mutex
);
7432 if (!iwl_is_ready(priv
)) {
7437 if ((mode
< 1) || (mode
> IWL_POWER_LIMIT
) || (mode
== IWL_POWER_AC
))
7438 mode
= IWL_POWER_AC
;
7440 mode
|= IWL_POWER_ENABLED
;
7442 if (mode
!= priv
->power_mode
) {
7443 rc
= iwl4965_send_power_mode(priv
, IWL_POWER_LEVEL(mode
));
7445 IWL_DEBUG_MAC80211("failed setting power mode.\n");
7448 priv
->power_mode
= mode
;
7454 mutex_unlock(&priv
->mutex
);
7458 #define MAX_WX_STRING 80
7460 /* Values are in microsecond */
7461 static const s32 timeout_duration
[] = {
7468 static const s32 period_duration
[] = {
7476 static ssize_t
show_power_level(struct device
*d
,
7477 struct device_attribute
*attr
, char *buf
)
7479 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7480 int level
= IWL_POWER_LEVEL(priv
->power_mode
);
7483 p
+= sprintf(p
, "%d ", level
);
7485 case IWL_POWER_MODE_CAM
:
7487 p
+= sprintf(p
, "(AC)");
7489 case IWL_POWER_BATTERY
:
7490 p
+= sprintf(p
, "(BATTERY)");
7494 "(Timeout %dms, Period %dms)",
7495 timeout_duration
[level
- 1] / 1000,
7496 period_duration
[level
- 1] / 1000);
7499 if (!(priv
->power_mode
& IWL_POWER_ENABLED
))
7500 p
+= sprintf(p
, " OFF\n");
7502 p
+= sprintf(p
, " \n");
7504 return (p
- buf
+ 1);
7508 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
7511 static ssize_t
show_channels(struct device
*d
,
7512 struct device_attribute
*attr
, char *buf
)
7514 /* all this shit doesn't belong into sysfs anyway */
7518 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
7520 static ssize_t
show_statistics(struct device
*d
,
7521 struct device_attribute
*attr
, char *buf
)
7523 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7524 u32 size
= sizeof(struct iwl4965_notif_statistics
);
7525 u32 len
= 0, ofs
= 0;
7526 u8
*data
= (u8
*) & priv
->statistics
;
7529 if (!iwl_is_alive(priv
))
7532 mutex_lock(&priv
->mutex
);
7533 rc
= iwl4965_send_statistics_request(priv
);
7534 mutex_unlock(&priv
->mutex
);
7538 "Error sending statistics request: 0x%08X\n", rc
);
7542 while (size
&& (PAGE_SIZE
- len
)) {
7543 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7544 PAGE_SIZE
- len
, 1);
7546 if (PAGE_SIZE
- len
)
7550 size
-= min(size
, 16U);
7556 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
7558 static ssize_t
show_antenna(struct device
*d
,
7559 struct device_attribute
*attr
, char *buf
)
7561 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7563 if (!iwl_is_alive(priv
))
7566 return sprintf(buf
, "%d\n", priv
->antenna
);
7569 static ssize_t
store_antenna(struct device
*d
,
7570 struct device_attribute
*attr
,
7571 const char *buf
, size_t count
)
7574 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7579 if (sscanf(buf
, "%1i", &ant
) != 1) {
7580 IWL_DEBUG_INFO("not in hex or decimal form.\n");
7584 if ((ant
>= 0) && (ant
<= 2)) {
7585 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant
);
7586 priv
->antenna
= (enum iwl4965_antenna
)ant
;
7588 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant
);
7594 static DEVICE_ATTR(antenna
, S_IWUSR
| S_IRUGO
, show_antenna
, store_antenna
);
7596 static ssize_t
show_status(struct device
*d
,
7597 struct device_attribute
*attr
, char *buf
)
7599 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7600 if (!iwl_is_alive(priv
))
7602 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
7605 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
7607 static ssize_t
dump_error_log(struct device
*d
,
7608 struct device_attribute
*attr
,
7609 const char *buf
, size_t count
)
7611 char *p
= (char *)buf
;
7614 iwl4965_dump_nic_error_log((struct iwl_priv
*)d
->driver_data
);
7616 return strnlen(buf
, count
);
7619 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
7621 static ssize_t
dump_event_log(struct device
*d
,
7622 struct device_attribute
*attr
,
7623 const char *buf
, size_t count
)
7625 char *p
= (char *)buf
;
7628 iwl4965_dump_nic_event_log((struct iwl_priv
*)d
->driver_data
);
7630 return strnlen(buf
, count
);
7633 static DEVICE_ATTR(dump_events
, S_IWUSR
, NULL
, dump_event_log
);
7635 /*****************************************************************************
7637 * driver setup and teardown
7639 *****************************************************************************/
7641 static void iwl4965_setup_deferred_work(struct iwl_priv
*priv
)
7643 priv
->workqueue
= create_workqueue(DRV_NAME
);
7645 init_waitqueue_head(&priv
->wait_command_queue
);
7647 INIT_WORK(&priv
->up
, iwl4965_bg_up
);
7648 INIT_WORK(&priv
->restart
, iwl4965_bg_restart
);
7649 INIT_WORK(&priv
->rx_replenish
, iwl4965_bg_rx_replenish
);
7650 INIT_WORK(&priv
->scan_completed
, iwl4965_bg_scan_completed
);
7651 INIT_WORK(&priv
->request_scan
, iwl4965_bg_request_scan
);
7652 INIT_WORK(&priv
->abort_scan
, iwl4965_bg_abort_scan
);
7653 INIT_WORK(&priv
->rf_kill
, iwl4965_bg_rf_kill
);
7654 INIT_WORK(&priv
->beacon_update
, iwl4965_bg_beacon_update
);
7655 INIT_DELAYED_WORK(&priv
->post_associate
, iwl4965_bg_post_associate
);
7656 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl4965_bg_init_alive_start
);
7657 INIT_DELAYED_WORK(&priv
->alive_start
, iwl4965_bg_alive_start
);
7658 INIT_DELAYED_WORK(&priv
->scan_check
, iwl4965_bg_scan_check
);
7660 iwl4965_hw_setup_deferred_work(priv
);
7662 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
7663 iwl4965_irq_tasklet
, (unsigned long)priv
);
7666 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
)
7668 iwl4965_hw_cancel_deferred_work(priv
);
7670 cancel_delayed_work_sync(&priv
->init_alive_start
);
7671 cancel_delayed_work(&priv
->scan_check
);
7672 cancel_delayed_work(&priv
->alive_start
);
7673 cancel_delayed_work(&priv
->post_associate
);
7674 cancel_work_sync(&priv
->beacon_update
);
7677 static struct attribute
*iwl4965_sysfs_entries
[] = {
7678 &dev_attr_antenna
.attr
,
7679 &dev_attr_channels
.attr
,
7680 &dev_attr_dump_errors
.attr
,
7681 &dev_attr_dump_events
.attr
,
7682 &dev_attr_flags
.attr
,
7683 &dev_attr_filter_flags
.attr
,
7684 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
7685 &dev_attr_measurement
.attr
,
7687 &dev_attr_power_level
.attr
,
7688 &dev_attr_retry_rate
.attr
,
7689 &dev_attr_rs_window
.attr
,
7690 &dev_attr_statistics
.attr
,
7691 &dev_attr_status
.attr
,
7692 &dev_attr_temperature
.attr
,
7693 &dev_attr_tx_power
.attr
,
7698 static struct attribute_group iwl4965_attribute_group
= {
7699 .name
= NULL
, /* put in device directory */
7700 .attrs
= iwl4965_sysfs_entries
,
7703 static struct ieee80211_ops iwl4965_hw_ops
= {
7704 .tx
= iwl4965_mac_tx
,
7705 .start
= iwl4965_mac_start
,
7706 .stop
= iwl4965_mac_stop
,
7707 .add_interface
= iwl4965_mac_add_interface
,
7708 .remove_interface
= iwl4965_mac_remove_interface
,
7709 .config
= iwl4965_mac_config
,
7710 .config_interface
= iwl4965_mac_config_interface
,
7711 .configure_filter
= iwl4965_configure_filter
,
7712 .set_key
= iwl4965_mac_set_key
,
7713 .update_tkip_key
= iwl4965_mac_update_tkip_key
,
7714 .get_stats
= iwl4965_mac_get_stats
,
7715 .get_tx_stats
= iwl4965_mac_get_tx_stats
,
7716 .conf_tx
= iwl4965_mac_conf_tx
,
7717 .get_tsf
= iwl4965_mac_get_tsf
,
7718 .reset_tsf
= iwl4965_mac_reset_tsf
,
7719 .beacon_update
= iwl4965_mac_beacon_update
,
7720 .bss_info_changed
= iwl4965_bss_info_changed
,
7721 #ifdef CONFIG_IWL4965_HT
7722 .ampdu_action
= iwl4965_mac_ampdu_action
,
7723 #endif /* CONFIG_IWL4965_HT */
7724 .hw_scan
= iwl4965_mac_hw_scan
7727 static int iwl4965_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
7730 struct iwl_priv
*priv
;
7731 struct ieee80211_hw
*hw
;
7732 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
7733 unsigned long flags
;
7734 DECLARE_MAC_BUF(mac
);
7736 /************************
7737 * 1. Allocating HW data
7738 ************************/
7740 /* Disabling hardware scan means that mac80211 will perform scans
7741 * "the hard way", rather than using device's scan. */
7742 if (cfg
->mod_params
->disable_hw_scan
) {
7743 IWL_DEBUG_INFO("Disabling hw_scan\n");
7744 iwl4965_hw_ops
.hw_scan
= NULL
;
7747 hw
= iwl_alloc_all(cfg
, &iwl4965_hw_ops
);
7753 /* At this point both hw and priv are allocated. */
7755 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
7757 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
7759 priv
->pci_dev
= pdev
;
7761 #ifdef CONFIG_IWLWIFI_DEBUG
7762 iwl_debug_level
= priv
->cfg
->mod_params
->debug
;
7763 atomic_set(&priv
->restrict_refcnt
, 0);
7766 /**************************
7767 * 2. Initializing PCI bus
7768 **************************/
7769 if (pci_enable_device(pdev
)) {
7771 goto out_ieee80211_free_hw
;
7774 pci_set_master(pdev
);
7776 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
7778 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
7780 printk(KERN_WARNING DRV_NAME
7781 ": No suitable DMA available.\n");
7782 goto out_pci_disable_device
;
7785 err
= pci_request_regions(pdev
, DRV_NAME
);
7787 goto out_pci_disable_device
;
7789 pci_set_drvdata(pdev
, priv
);
7791 /* We disable the RETRY_TIMEOUT register (0x41) to keep
7792 * PCI Tx retries from interfering with C3 CPU state */
7793 pci_write_config_byte(pdev
, 0x41, 0x00);
7795 /***********************
7796 * 3. Read REV register
7797 ***********************/
7798 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
7799 if (!priv
->hw_base
) {
7801 goto out_pci_release_regions
;
7804 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
7805 (unsigned long long) pci_resource_len(pdev
, 0));
7806 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
7808 printk(KERN_INFO DRV_NAME
7809 ": Detected Intel Wireless WiFi Link %s\n", priv
->cfg
->name
);
7815 iwl_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
7816 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER
);
7818 iwl_set_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
7819 err
= iwl_poll_bit(priv
, CSR_GP_CNTRL
,
7820 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
,
7821 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
, 25000);
7823 IWL_DEBUG_INFO("Failed to init the card\n");
7826 /* Read the EEPROM */
7827 err
= iwl_eeprom_init(priv
);
7829 IWL_ERROR("Unable to init EEPROM\n");
7832 /* MAC Address location in EEPROM same for 3945/4965 */
7833 iwl_eeprom_get_mac(priv
, priv
->mac_addr
);
7834 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac
, priv
->mac_addr
));
7835 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
7837 /************************
7838 * 5. Setup HW constants
7839 ************************/
7840 /* Device-specific setup */
7841 if (iwl4965_hw_set_hw_setting(priv
)) {
7842 IWL_ERROR("failed to set hw settings\n");
7846 /*******************
7848 *******************/
7850 err
= iwl_setup(priv
);
7852 goto out_unset_hw_settings
;
7853 /* At this point both hw and priv are initialized. */
7855 /**********************************
7856 * 7. Initialize module parameters
7857 **********************************/
7859 /* Disable radio (SW RF KILL) via parameter when loading driver */
7860 if (priv
->cfg
->mod_params
->disable
) {
7861 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
7862 IWL_DEBUG_INFO("Radio disabled.\n");
7865 if (priv
->cfg
->mod_params
->enable_qos
)
7866 priv
->qos_data
.qos_enable
= 1;
7868 /********************
7870 ********************/
7871 spin_lock_irqsave(&priv
->lock
, flags
);
7872 iwl4965_disable_interrupts(priv
);
7873 spin_unlock_irqrestore(&priv
->lock
, flags
);
7875 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
7877 IWL_ERROR("failed to create sysfs device attributes\n");
7878 goto out_unset_hw_settings
;
7881 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
7883 IWL_ERROR("failed to create debugfs files\n");
7884 goto out_remove_sysfs
;
7887 iwl4965_setup_deferred_work(priv
);
7888 iwl4965_setup_rx_handlers(priv
);
7890 /********************
7892 ********************/
7893 pci_save_state(pdev
);
7894 pci_disable_device(pdev
);
7896 /* notify iwlcore to init */
7897 iwlcore_low_level_notify(priv
, IWLCORE_INIT_EVT
);
7901 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
7902 out_unset_hw_settings
:
7903 iwl4965_unset_hw_setting(priv
);
7905 pci_iounmap(pdev
, priv
->hw_base
);
7906 out_pci_release_regions
:
7907 pci_release_regions(pdev
);
7908 pci_set_drvdata(pdev
, NULL
);
7909 out_pci_disable_device
:
7910 pci_disable_device(pdev
);
7911 out_ieee80211_free_hw
:
7912 ieee80211_free_hw(priv
->hw
);
7917 static void __devexit
iwl4965_pci_remove(struct pci_dev
*pdev
)
7919 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
7920 struct list_head
*p
, *q
;
7922 unsigned long flags
;
7927 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
7929 if (priv
->mac80211_registered
) {
7930 ieee80211_unregister_hw(priv
->hw
);
7931 priv
->mac80211_registered
= 0;
7934 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
7938 /* make sure we flush any pending irq or
7939 * tasklet for the driver
7941 spin_lock_irqsave(&priv
->lock
, flags
);
7942 iwl4965_disable_interrupts(priv
);
7943 spin_unlock_irqrestore(&priv
->lock
, flags
);
7945 iwl_synchronize_irq(priv
);
7947 /* Free MAC hash list for ADHOC */
7948 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++) {
7949 list_for_each_safe(p
, q
, &priv
->ibss_mac_hash
[i
]) {
7951 kfree(list_entry(p
, struct iwl4965_ibss_seq
, list
));
7955 iwlcore_low_level_notify(priv
, IWLCORE_REMOVE_EVT
);
7956 iwl_dbgfs_unregister(priv
);
7957 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
7959 iwl4965_dealloc_ucode_pci(priv
);
7962 iwl4965_rx_queue_free(priv
, &priv
->rxq
);
7963 iwl4965_hw_txq_ctx_free(priv
);
7965 iwl4965_unset_hw_setting(priv
);
7966 iwlcore_clear_stations_table(priv
);
7969 /*netif_stop_queue(dev); */
7970 flush_workqueue(priv
->workqueue
);
7972 /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
7973 * priv->workqueue... so we can't take down the workqueue
7975 destroy_workqueue(priv
->workqueue
);
7976 priv
->workqueue
= NULL
;
7978 pci_iounmap(pdev
, priv
->hw_base
);
7979 pci_release_regions(pdev
);
7980 pci_disable_device(pdev
);
7981 pci_set_drvdata(pdev
, NULL
);
7983 iwl_free_channel_map(priv
);
7984 iwl4965_free_geos(priv
);
7986 if (priv
->ibss_beacon
)
7987 dev_kfree_skb(priv
->ibss_beacon
);
7989 ieee80211_free_hw(priv
->hw
);
7994 static int iwl4965_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
7996 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
7998 if (priv
->is_open
) {
7999 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8000 iwl4965_mac_stop(priv
->hw
);
8004 pci_set_power_state(pdev
, PCI_D3hot
);
8009 static int iwl4965_pci_resume(struct pci_dev
*pdev
)
8011 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
8013 pci_set_power_state(pdev
, PCI_D0
);
8016 iwl4965_mac_start(priv
->hw
);
8018 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8022 #endif /* CONFIG_PM */
8024 /*****************************************************************************
8026 * driver and module entry point
8028 *****************************************************************************/
8030 static struct pci_driver iwl4965_driver
= {
8032 .id_table
= iwl4965_hw_card_ids
,
8033 .probe
= iwl4965_pci_probe
,
8034 .remove
= __devexit_p(iwl4965_pci_remove
),
8036 .suspend
= iwl4965_pci_suspend
,
8037 .resume
= iwl4965_pci_resume
,
8041 static int __init
iwl4965_init(void)
8045 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
8046 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
8048 ret
= iwl4965_rate_control_register();
8050 IWL_ERROR("Unable to register rate control algorithm: %d\n", ret
);
8054 ret
= pci_register_driver(&iwl4965_driver
);
8056 IWL_ERROR("Unable to initialize PCI module\n");
8057 goto error_register
;
8059 #ifdef CONFIG_IWLWIFI_DEBUG
8060 ret
= driver_create_file(&iwl4965_driver
.driver
, &driver_attr_debug_level
);
8062 IWL_ERROR("Unable to create driver sysfs file\n");
8069 #ifdef CONFIG_IWLWIFI_DEBUG
8071 pci_unregister_driver(&iwl4965_driver
);
8074 iwl4965_rate_control_unregister();
8078 static void __exit
iwl4965_exit(void)
8080 #ifdef CONFIG_IWLWIFI_DEBUG
8081 driver_remove_file(&iwl4965_driver
.driver
, &driver_attr_debug_level
);
8083 pci_unregister_driver(&iwl4965_driver
);
8084 iwl4965_rate_control_unregister();
8087 module_exit(iwl4965_exit
);
8088 module_init(iwl4965_init
);