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"
51 #include "iwl-helpers.h"
53 static int iwl4965_tx_queue_update_write_ptr(struct iwl_priv
*priv
,
54 struct iwl4965_tx_queue
*txq
);
56 /******************************************************************************
60 ******************************************************************************/
63 * module name, copyright, version, etc.
64 * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
67 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link 4965AGN driver for Linux"
69 #ifdef CONFIG_IWLWIFI_DEBUG
75 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
81 #define DRV_VERSION IWLWIFI_VERSION VD VS
84 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
85 MODULE_VERSION(DRV_VERSION
);
86 MODULE_AUTHOR(DRV_COPYRIGHT
);
87 MODULE_LICENSE("GPL");
89 __le16
*ieee80211_get_qos_ctrl(struct ieee80211_hdr
*hdr
)
91 u16 fc
= le16_to_cpu(hdr
->frame_control
);
92 int hdr_len
= ieee80211_get_hdrlen(fc
);
94 if ((fc
& 0x00cc) == (IEEE80211_STYPE_QOS_DATA
| IEEE80211_FTYPE_DATA
))
95 return (__le16
*) ((u8
*) hdr
+ hdr_len
- QOS_CONTROL_LEN
);
99 static const struct ieee80211_supported_band
*iwl4965_get_hw_mode(
100 struct iwl_priv
*priv
, enum ieee80211_band band
)
102 return priv
->hw
->wiphy
->bands
[band
];
105 static int iwl4965_is_empty_essid(const char *essid
, int essid_len
)
107 /* Single white space is for Linksys APs */
108 if (essid_len
== 1 && essid
[0] == ' ')
111 /* Otherwise, if the entire essid is 0, we assume it is hidden */
114 if (essid
[essid_len
] != '\0')
121 static const char *iwl4965_escape_essid(const char *essid
, u8 essid_len
)
123 static char escaped
[IW_ESSID_MAX_SIZE
* 2 + 1];
124 const char *s
= essid
;
127 if (iwl4965_is_empty_essid(essid
, essid_len
)) {
128 memcpy(escaped
, "<hidden>", sizeof("<hidden>"));
132 essid_len
= min(essid_len
, (u8
) IW_ESSID_MAX_SIZE
);
133 while (essid_len
--) {
145 /*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
148 * Theory of operation
150 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
151 * of buffer descriptors, each of which points to one or more data buffers for
152 * the device to read from or fill. Driver and device exchange status of each
153 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
154 * entries in each circular buffer, to protect against confusing empty and full
157 * The device reads or writes the data in the queues via the device's several
158 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
160 * For Tx queue, there are low mark and high mark limits. If, after queuing
161 * the packet for Tx, free space become < low mark, Tx queue stopped. When
162 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
165 * The 4965 operates with up to 17 queues: One receive queue, one transmit
166 * queue (#4) for sending commands to the device firmware, and 15 other
167 * Tx queues that may be mapped to prioritized Tx DMA/FIFO channels.
169 * See more detailed info in iwl-4965-hw.h.
170 ***************************************************/
172 int iwl4965_queue_space(const struct iwl4965_queue
*q
)
174 int s
= q
->read_ptr
- q
->write_ptr
;
176 if (q
->read_ptr
> q
->write_ptr
)
181 /* keep some reserve to not confuse empty and full situations */
189 static inline int x2_queue_used(const struct iwl4965_queue
*q
, int i
)
191 return q
->write_ptr
> q
->read_ptr
?
192 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
193 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
196 static inline u8
get_cmd_index(struct iwl4965_queue
*q
, u32 index
, int is_huge
)
198 /* This is for scan command, the big buffer at end of command array */
200 return q
->n_window
; /* must be power of 2 */
202 /* Otherwise, use normal size buffers */
203 return index
& (q
->n_window
- 1);
207 * iwl4965_queue_init - Initialize queue's high/low-water and read/write indexes
209 static int iwl4965_queue_init(struct iwl_priv
*priv
, struct iwl4965_queue
*q
,
210 int count
, int slots_num
, u32 id
)
213 q
->n_window
= slots_num
;
216 /* count must be power-of-two size, otherwise iwl_queue_inc_wrap
217 * and iwl_queue_dec_wrap are broken. */
218 BUG_ON(!is_power_of_2(count
));
220 /* slots_num must be power-of-two size, otherwise
221 * get_cmd_index is broken. */
222 BUG_ON(!is_power_of_2(slots_num
));
224 q
->low_mark
= q
->n_window
/ 4;
228 q
->high_mark
= q
->n_window
/ 8;
229 if (q
->high_mark
< 2)
232 q
->write_ptr
= q
->read_ptr
= 0;
238 * iwl4965_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
240 static int iwl4965_tx_queue_alloc(struct iwl_priv
*priv
,
241 struct iwl4965_tx_queue
*txq
, u32 id
)
243 struct pci_dev
*dev
= priv
->pci_dev
;
245 /* Driver private data, only for Tx (not command) queues,
246 * not shared with device. */
247 if (id
!= IWL_CMD_QUEUE_NUM
) {
248 txq
->txb
= kmalloc(sizeof(txq
->txb
[0]) *
249 TFD_QUEUE_SIZE_MAX
, GFP_KERNEL
);
251 IWL_ERROR("kmalloc for auxiliary BD "
252 "structures failed\n");
258 /* Circular buffer of transmit frame descriptors (TFDs),
259 * shared with device */
260 txq
->bd
= pci_alloc_consistent(dev
,
261 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
,
265 IWL_ERROR("pci_alloc_consistent(%zd) failed\n",
266 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
);
283 * iwl4965_tx_queue_init - Allocate and initialize one tx/cmd queue
285 int iwl4965_tx_queue_init(struct iwl_priv
*priv
,
286 struct iwl4965_tx_queue
*txq
, int slots_num
, u32 txq_id
)
288 struct pci_dev
*dev
= priv
->pci_dev
;
293 * Alloc buffer array for commands (Tx or other types of commands).
294 * For the command queue (#4), allocate command space + one big
295 * command for scan, since scan command is very huge; the system will
296 * not have two scans at the same time, so only one is needed.
297 * For normal Tx queues (all other queues), no super-size command
300 len
= sizeof(struct iwl_cmd
) * slots_num
;
301 if (txq_id
== IWL_CMD_QUEUE_NUM
)
302 len
+= IWL_MAX_SCAN_SIZE
;
303 txq
->cmd
= pci_alloc_consistent(dev
, len
, &txq
->dma_addr_cmd
);
307 /* Alloc driver data array and TFD circular buffer */
308 rc
= iwl4965_tx_queue_alloc(priv
, txq
, txq_id
);
310 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
314 txq
->need_update
= 0;
316 /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
317 * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
318 BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX
& (TFD_QUEUE_SIZE_MAX
- 1));
320 /* Initialize queue's high/low-water marks, and head/tail indexes */
321 iwl4965_queue_init(priv
, &txq
->q
, TFD_QUEUE_SIZE_MAX
, slots_num
, txq_id
);
323 /* Tell device where to find queue */
324 iwl4965_hw_tx_queue_init(priv
, txq
);
330 * iwl4965_tx_queue_free - Deallocate DMA queue.
331 * @txq: Transmit queue to deallocate.
333 * Empty queue by removing and destroying all BD's.
335 * 0-fill, but do not free "txq" descriptor structure.
337 void iwl4965_tx_queue_free(struct iwl_priv
*priv
, struct iwl4965_tx_queue
*txq
)
339 struct iwl4965_queue
*q
= &txq
->q
;
340 struct pci_dev
*dev
= priv
->pci_dev
;
346 /* first, empty all BD's */
347 for (; q
->write_ptr
!= q
->read_ptr
;
348 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
))
349 iwl4965_hw_txq_free_tfd(priv
, txq
);
351 len
= sizeof(struct iwl_cmd
) * q
->n_window
;
352 if (q
->id
== IWL_CMD_QUEUE_NUM
)
353 len
+= IWL_MAX_SCAN_SIZE
;
355 /* De-alloc array of command/tx buffers */
356 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
358 /* De-alloc circular buffer of TFDs */
360 pci_free_consistent(dev
, sizeof(struct iwl4965_tfd_frame
) *
361 txq
->q
.n_bd
, txq
->bd
, txq
->q
.dma_addr
);
363 /* De-alloc array of per-TFD driver data */
369 /* 0-fill queue descriptor structure */
370 memset(txq
, 0, sizeof(*txq
));
373 const u8 iwl4965_broadcast_addr
[ETH_ALEN
] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
375 /*************** STATION TABLE MANAGEMENT ****
376 * mac80211 should be examined to determine if sta_info is duplicating
377 * the functionality provided here
380 /**************************************************************/
382 #if 0 /* temporary disable till we add real remove station */
384 * iwl4965_remove_station - Remove driver's knowledge of station.
386 * NOTE: This does not remove station from device's station table.
388 static u8
iwl4965_remove_station(struct iwl_priv
*priv
, const u8
*addr
, int is_ap
)
390 int index
= IWL_INVALID_STATION
;
394 spin_lock_irqsave(&priv
->sta_lock
, flags
);
398 else if (is_broadcast_ether_addr(addr
))
399 index
= priv
->hw_setting
.bcast_sta_id
;
401 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++)
402 if (priv
->stations
[i
].used
&&
403 !compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
409 if (unlikely(index
== IWL_INVALID_STATION
))
412 if (priv
->stations
[index
].used
) {
413 priv
->stations
[index
].used
= 0;
414 priv
->num_stations
--;
417 BUG_ON(priv
->num_stations
< 0);
420 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
426 * iwl4965_add_station_flags - Add station to tables in driver and device
428 u8
iwl4965_add_station_flags(struct iwl_priv
*priv
, const u8
*addr
,
429 int is_ap
, u8 flags
, void *ht_data
)
432 int index
= IWL_INVALID_STATION
;
433 struct iwl4965_station_entry
*station
;
434 unsigned long flags_spin
;
435 DECLARE_MAC_BUF(mac
);
437 spin_lock_irqsave(&priv
->sta_lock
, flags_spin
);
440 else if (is_broadcast_ether_addr(addr
))
441 index
= priv
->hw_setting
.bcast_sta_id
;
443 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++) {
444 if (!compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
450 if (!priv
->stations
[i
].used
&&
451 index
== IWL_INVALID_STATION
)
456 /* These two conditions have the same outcome, but keep them separate
457 since they have different meanings */
458 if (unlikely(index
== IWL_INVALID_STATION
)) {
459 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
463 if (priv
->stations
[index
].used
&&
464 !compare_ether_addr(priv
->stations
[index
].sta
.sta
.addr
, addr
)) {
465 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
470 IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index
, print_mac(mac
, addr
));
471 station
= &priv
->stations
[index
];
473 priv
->num_stations
++;
475 /* Set up the REPLY_ADD_STA command to send to device */
476 memset(&station
->sta
, 0, sizeof(struct iwl4965_addsta_cmd
));
477 memcpy(station
->sta
.sta
.addr
, addr
, ETH_ALEN
);
478 station
->sta
.mode
= 0;
479 station
->sta
.sta
.sta_id
= index
;
480 station
->sta
.station_flags
= 0;
482 #ifdef CONFIG_IWL4965_HT
483 /* BCAST station and IBSS stations do not work in HT mode */
484 if (index
!= priv
->hw_setting
.bcast_sta_id
&&
485 priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
)
486 iwl4965_set_ht_add_station(priv
, index
,
487 (struct ieee80211_ht_info
*) ht_data
);
488 #endif /*CONFIG_IWL4965_HT*/
490 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
492 /* Add station to device's station table */
493 iwl4965_send_add_station(priv
, &station
->sta
, flags
);
498 /*************** DRIVER STATUS FUNCTIONS *****/
500 static inline int iwl4965_is_ready(struct iwl_priv
*priv
)
502 /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
503 * set but EXIT_PENDING is not */
504 return test_bit(STATUS_READY
, &priv
->status
) &&
505 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) &&
506 !test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
509 static inline int iwl4965_is_alive(struct iwl_priv
*priv
)
511 return test_bit(STATUS_ALIVE
, &priv
->status
);
514 static inline int iwl4965_is_init(struct iwl_priv
*priv
)
516 return test_bit(STATUS_INIT
, &priv
->status
);
519 static inline int iwl4965_is_rfkill(struct iwl_priv
*priv
)
521 return test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ||
522 test_bit(STATUS_RF_KILL_SW
, &priv
->status
);
525 static inline int iwl4965_is_ready_rf(struct iwl_priv
*priv
)
528 if (iwl4965_is_rfkill(priv
))
531 return iwl4965_is_ready(priv
);
534 /*************** HOST COMMAND QUEUE FUNCTIONS *****/
537 * iwl4965_enqueue_hcmd - enqueue a uCode command
538 * @priv: device private data point
539 * @cmd: a point to the ucode command structure
541 * The function returns < 0 values to indicate the operation is
542 * failed. On success, it turns the index (> 0) of command in the
545 int iwl4965_enqueue_hcmd(struct iwl_priv
*priv
, struct iwl_host_cmd
*cmd
)
547 struct iwl4965_tx_queue
*txq
= &priv
->txq
[IWL_CMD_QUEUE_NUM
];
548 struct iwl4965_queue
*q
= &txq
->q
;
549 struct iwl4965_tfd_frame
*tfd
;
551 struct iwl_cmd
*out_cmd
;
553 u16 fix_size
= (u16
)(cmd
->len
+ sizeof(out_cmd
->hdr
));
554 dma_addr_t phys_addr
;
558 /* If any of the command structures end up being larger than
559 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
560 * we will need to increase the size of the TFD entries */
561 BUG_ON((fix_size
> TFD_MAX_PAYLOAD_SIZE
) &&
562 !(cmd
->meta
.flags
& CMD_SIZE_HUGE
));
564 if (iwl4965_is_rfkill(priv
)) {
565 IWL_DEBUG_INFO("Not sending command - RF KILL");
569 if (iwl4965_queue_space(q
) < ((cmd
->meta
.flags
& CMD_ASYNC
) ? 2 : 1)) {
570 IWL_ERROR("No space for Tx\n");
574 spin_lock_irqsave(&priv
->hcmd_lock
, flags
);
576 tfd
= &txq
->bd
[q
->write_ptr
];
577 memset(tfd
, 0, sizeof(*tfd
));
579 control_flags
= (u32
*) tfd
;
581 idx
= get_cmd_index(q
, q
->write_ptr
, cmd
->meta
.flags
& CMD_SIZE_HUGE
);
582 out_cmd
= &txq
->cmd
[idx
];
584 out_cmd
->hdr
.cmd
= cmd
->id
;
585 memcpy(&out_cmd
->meta
, &cmd
->meta
, sizeof(cmd
->meta
));
586 memcpy(&out_cmd
->cmd
.payload
, cmd
->data
, cmd
->len
);
588 /* At this point, the out_cmd now has all of the incoming cmd
591 out_cmd
->hdr
.flags
= 0;
592 out_cmd
->hdr
.sequence
= cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM
) |
593 INDEX_TO_SEQ(q
->write_ptr
));
594 if (out_cmd
->meta
.flags
& CMD_SIZE_HUGE
)
595 out_cmd
->hdr
.sequence
|= cpu_to_le16(SEQ_HUGE_FRAME
);
597 phys_addr
= txq
->dma_addr_cmd
+ sizeof(txq
->cmd
[0]) * idx
+
598 offsetof(struct iwl_cmd
, hdr
);
599 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, fix_size
);
601 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
602 "%d bytes at %d[%d]:%d\n",
603 get_cmd_string(out_cmd
->hdr
.cmd
),
604 out_cmd
->hdr
.cmd
, le16_to_cpu(out_cmd
->hdr
.sequence
),
605 fix_size
, q
->write_ptr
, idx
, IWL_CMD_QUEUE_NUM
);
607 txq
->need_update
= 1;
609 /* Set up entry in queue's byte count circular buffer */
610 ret
= iwl4965_tx_queue_update_wr_ptr(priv
, txq
, 0);
612 /* Increment and update queue's write index */
613 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
614 iwl4965_tx_queue_update_write_ptr(priv
, txq
);
616 spin_unlock_irqrestore(&priv
->hcmd_lock
, flags
);
617 return ret
? ret
: idx
;
620 static void iwl4965_set_rxon_hwcrypto(struct iwl_priv
*priv
, int hw_decrypt
)
622 struct iwl4965_rxon_cmd
*rxon
= &priv
->staging_rxon
;
625 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
627 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
631 int iwl4965_send_statistics_request(struct iwl_priv
*priv
)
634 return iwl_send_cmd_pdu(priv
, REPLY_STATISTICS_CMD
,
635 sizeof(flags
), &flags
);
639 * iwl4965_rxon_add_station - add station into station table.
641 * there is only one AP station with id= IWL_AP_ID
642 * NOTE: mutex must be held before calling this fnction
644 static int iwl4965_rxon_add_station(struct iwl_priv
*priv
,
645 const u8
*addr
, int is_ap
)
649 /* Add station to device's station table */
650 #ifdef CONFIG_IWL4965_HT
651 struct ieee80211_conf
*conf
= &priv
->hw
->conf
;
652 struct ieee80211_ht_info
*cur_ht_config
= &conf
->ht_conf
;
655 (conf
->flags
& IEEE80211_CONF_SUPPORT_HT_MODE
) &&
656 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
657 sta_id
= iwl4965_add_station_flags(priv
, addr
, is_ap
,
660 #endif /* CONFIG_IWL4965_HT */
661 sta_id
= iwl4965_add_station_flags(priv
, addr
, is_ap
,
664 /* Set up default rate scaling table in device's station table */
665 iwl4965_add_station(priv
, addr
, is_ap
);
671 * iwl4965_check_rxon_cmd - validate RXON structure is valid
673 * NOTE: This is really only useful during development and can eventually
674 * be #ifdef'd out once the driver is stable and folks aren't actively
677 static int iwl4965_check_rxon_cmd(struct iwl4965_rxon_cmd
*rxon
)
682 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
683 error
|= le32_to_cpu(rxon
->flags
&
684 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
685 RXON_FLG_RADAR_DETECT_MSK
));
687 IWL_WARNING("check 24G fields %d | %d\n",
690 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
691 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
693 IWL_WARNING("check 52 fields %d | %d\n",
695 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
697 IWL_WARNING("check 52 CCK %d | %d\n",
700 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
702 IWL_WARNING("check mac addr %d | %d\n", counter
++, error
);
704 /* make sure basic rates 6Mbps and 1Mbps are supported */
705 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
706 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
708 IWL_WARNING("check basic rate %d | %d\n", counter
++, error
);
710 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
712 IWL_WARNING("check assoc id %d | %d\n", counter
++, error
);
714 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
715 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
717 IWL_WARNING("check CCK and short slot %d | %d\n",
720 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
721 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
723 IWL_WARNING("check CCK & auto detect %d | %d\n",
726 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
727 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
729 IWL_WARNING("check TGG and auto detect %d | %d\n",
733 IWL_WARNING("Tuning to channel %d\n",
734 le16_to_cpu(rxon
->channel
));
737 IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
744 * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
745 * @priv: staging_rxon is compared to active_rxon
747 * If the RXON structure is changing enough to require a new tune,
748 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
749 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
751 static int iwl4965_full_rxon_required(struct iwl_priv
*priv
)
754 /* These items are only settable from the full RXON command */
755 if (!(priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ||
756 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
757 priv
->active_rxon
.bssid_addr
) ||
758 compare_ether_addr(priv
->staging_rxon
.node_addr
,
759 priv
->active_rxon
.node_addr
) ||
760 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
761 priv
->active_rxon
.wlap_bssid_addr
) ||
762 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
763 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
764 (priv
->staging_rxon
.air_propagation
!=
765 priv
->active_rxon
.air_propagation
) ||
766 (priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
!=
767 priv
->active_rxon
.ofdm_ht_single_stream_basic_rates
) ||
768 (priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
!=
769 priv
->active_rxon
.ofdm_ht_dual_stream_basic_rates
) ||
770 (priv
->staging_rxon
.rx_chain
!= priv
->active_rxon
.rx_chain
) ||
771 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
774 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
775 * be updated with the RXON_ASSOC command -- however only some
776 * flag transitions are allowed using RXON_ASSOC */
778 /* Check if we are not switching bands */
779 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
780 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
783 /* Check if we are switching association toggle */
784 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
785 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
791 static int iwl4965_send_rxon_assoc(struct iwl_priv
*priv
)
794 struct iwl4965_rx_packet
*res
= NULL
;
795 struct iwl4965_rxon_assoc_cmd rxon_assoc
;
796 struct iwl_host_cmd cmd
= {
797 .id
= REPLY_RXON_ASSOC
,
798 .len
= sizeof(rxon_assoc
),
799 .meta
.flags
= CMD_WANT_SKB
,
802 const struct iwl4965_rxon_cmd
*rxon1
= &priv
->staging_rxon
;
803 const struct iwl4965_rxon_cmd
*rxon2
= &priv
->active_rxon
;
805 if ((rxon1
->flags
== rxon2
->flags
) &&
806 (rxon1
->filter_flags
== rxon2
->filter_flags
) &&
807 (rxon1
->cck_basic_rates
== rxon2
->cck_basic_rates
) &&
808 (rxon1
->ofdm_ht_single_stream_basic_rates
==
809 rxon2
->ofdm_ht_single_stream_basic_rates
) &&
810 (rxon1
->ofdm_ht_dual_stream_basic_rates
==
811 rxon2
->ofdm_ht_dual_stream_basic_rates
) &&
812 (rxon1
->rx_chain
== rxon2
->rx_chain
) &&
813 (rxon1
->ofdm_basic_rates
== rxon2
->ofdm_basic_rates
)) {
814 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
818 rxon_assoc
.flags
= priv
->staging_rxon
.flags
;
819 rxon_assoc
.filter_flags
= priv
->staging_rxon
.filter_flags
;
820 rxon_assoc
.ofdm_basic_rates
= priv
->staging_rxon
.ofdm_basic_rates
;
821 rxon_assoc
.cck_basic_rates
= priv
->staging_rxon
.cck_basic_rates
;
822 rxon_assoc
.reserved
= 0;
823 rxon_assoc
.ofdm_ht_single_stream_basic_rates
=
824 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
;
825 rxon_assoc
.ofdm_ht_dual_stream_basic_rates
=
826 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
;
827 rxon_assoc
.rx_chain_select_flags
= priv
->staging_rxon
.rx_chain
;
829 rc
= iwl_send_cmd_sync(priv
, &cmd
);
833 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
834 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
835 IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n");
839 priv
->alloc_rxb_skb
--;
840 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
846 * iwl4965_commit_rxon - commit staging_rxon to hardware
848 * The RXON command in staging_rxon is committed to the hardware and
849 * the active_rxon structure is updated with the new data. This
850 * function correctly transitions out of the RXON_ASSOC_MSK state if
851 * a HW tune is required based on the RXON structure changes.
853 static int iwl4965_commit_rxon(struct iwl_priv
*priv
)
855 /* cast away the const for active_rxon in this function */
856 struct iwl4965_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
857 DECLARE_MAC_BUF(mac
);
860 if (!iwl4965_is_alive(priv
))
863 /* always get timestamp with Rx frame */
864 priv
->staging_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
866 rc
= iwl4965_check_rxon_cmd(&priv
->staging_rxon
);
868 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
872 /* If we don't need to send a full RXON, we can use
873 * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
874 * and other flags for the current radio configuration. */
875 if (!iwl4965_full_rxon_required(priv
)) {
876 rc
= iwl4965_send_rxon_assoc(priv
);
878 IWL_ERROR("Error setting RXON_ASSOC "
879 "configuration (%d).\n", rc
);
883 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
888 /* station table will be cleared */
889 priv
->assoc_station_added
= 0;
891 #ifdef CONFIG_IWL4965_SENSITIVITY
892 priv
->sensitivity_data
.state
= IWL_SENS_CALIB_NEED_REINIT
;
893 if (!priv
->error_recovering
)
894 priv
->start_calib
= 0;
896 iwl4965_init_sensitivity(priv
, CMD_ASYNC
, 1);
897 #endif /* CONFIG_IWL4965_SENSITIVITY */
899 /* If we are currently associated and the new config requires
900 * an RXON_ASSOC and the new config wants the associated mask enabled,
901 * we must clear the associated from the active configuration
902 * before we apply the new config */
903 if (iwl4965_is_associated(priv
) &&
904 (priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
)) {
905 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
906 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
908 rc
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
909 sizeof(struct iwl4965_rxon_cmd
),
912 /* If the mask clearing failed then we set
913 * active_rxon back to what it was previously */
915 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
916 IWL_ERROR("Error clearing ASSOC_MSK on current "
917 "configuration (%d).\n", rc
);
922 IWL_DEBUG_INFO("Sending RXON\n"
923 "* with%s RXON_FILTER_ASSOC_MSK\n"
926 ((priv
->staging_rxon
.filter_flags
&
927 RXON_FILTER_ASSOC_MSK
) ? "" : "out"),
928 le16_to_cpu(priv
->staging_rxon
.channel
),
929 print_mac(mac
, priv
->staging_rxon
.bssid_addr
));
931 iwl4965_set_rxon_hwcrypto(priv
, priv
->cfg
->mod_params
->hw_crypto
);
932 /* Apply the new configuration */
933 rc
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
934 sizeof(struct iwl4965_rxon_cmd
), &priv
->staging_rxon
);
936 IWL_ERROR("Error setting new configuration (%d).\n", rc
);
940 iwlcore_clear_stations_table(priv
);
942 #ifdef CONFIG_IWL4965_SENSITIVITY
943 if (!priv
->error_recovering
)
944 priv
->start_calib
= 0;
946 priv
->sensitivity_data
.state
= IWL_SENS_CALIB_NEED_REINIT
;
947 iwl4965_init_sensitivity(priv
, CMD_ASYNC
, 1);
948 #endif /* CONFIG_IWL4965_SENSITIVITY */
950 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
952 /* If we issue a new RXON command which required a tune then we must
953 * send a new TXPOWER command or we won't be able to Tx any frames */
954 rc
= iwl4965_hw_reg_send_txpower(priv
);
956 IWL_ERROR("Error setting Tx power (%d).\n", rc
);
960 /* Add the broadcast address so we can send broadcast frames */
961 if (iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0) ==
962 IWL_INVALID_STATION
) {
963 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
967 /* If we have set the ASSOC_MSK and we are in BSS mode then
968 * add the IWL_AP_ID to the station rate table */
969 if (iwl4965_is_associated(priv
) &&
970 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)) {
971 if (iwl4965_rxon_add_station(priv
, priv
->active_rxon
.bssid_addr
, 1)
972 == IWL_INVALID_STATION
) {
973 IWL_ERROR("Error adding AP address for transmit.\n");
976 priv
->assoc_station_added
= 1;
982 static int iwl4965_send_bt_config(struct iwl_priv
*priv
)
984 struct iwl4965_bt_cmd bt_cmd
= {
992 return iwl_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
993 sizeof(struct iwl4965_bt_cmd
), &bt_cmd
);
996 static int iwl4965_send_scan_abort(struct iwl_priv
*priv
)
999 struct iwl4965_rx_packet
*res
;
1000 struct iwl_host_cmd cmd
= {
1001 .id
= REPLY_SCAN_ABORT_CMD
,
1002 .meta
.flags
= CMD_WANT_SKB
,
1005 /* If there isn't a scan actively going on in the hardware
1006 * then we are in between scan bands and not actually
1007 * actively scanning, so don't send the abort command */
1008 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1009 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1013 rc
= iwl_send_cmd_sync(priv
, &cmd
);
1015 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1019 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1020 if (res
->u
.status
!= CAN_ABORT_STATUS
) {
1021 /* The scan abort will return 1 for success or
1022 * 2 for "failure". A failure condition can be
1023 * due to simply not being in an active scan which
1024 * can occur if we send the scan abort before we
1025 * the microcode has notified us that a scan is
1027 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res
->u
.status
);
1028 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1029 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
1032 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1037 static int iwl4965_card_state_sync_callback(struct iwl_priv
*priv
,
1038 struct iwl_cmd
*cmd
,
1039 struct sk_buff
*skb
)
1047 * Use: Sets the device's internal card state to enable, disable, or halt
1049 * When in the 'enable' state the card operates as normal.
1050 * When in the 'disable' state, the card enters into a low power mode.
1051 * When in the 'halt' state, the card is shut down and must be fully
1052 * restarted to come back on.
1054 static int iwl4965_send_card_state(struct iwl_priv
*priv
, u32 flags
, u8 meta_flag
)
1056 struct iwl_host_cmd cmd
= {
1057 .id
= REPLY_CARD_STATE_CMD
,
1060 .meta
.flags
= meta_flag
,
1063 if (meta_flag
& CMD_ASYNC
)
1064 cmd
.meta
.u
.callback
= iwl4965_card_state_sync_callback
;
1066 return iwl_send_cmd(priv
, &cmd
);
1069 static int iwl4965_add_sta_sync_callback(struct iwl_priv
*priv
,
1070 struct iwl_cmd
*cmd
, struct sk_buff
*skb
)
1072 struct iwl4965_rx_packet
*res
= NULL
;
1075 IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n");
1079 res
= (struct iwl4965_rx_packet
*)skb
->data
;
1080 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1081 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1086 switch (res
->u
.add_sta
.status
) {
1087 case ADD_STA_SUCCESS_MSK
:
1093 /* We didn't cache the SKB; let the caller free it */
1097 int iwl4965_send_add_station(struct iwl_priv
*priv
,
1098 struct iwl4965_addsta_cmd
*sta
, u8 flags
)
1100 struct iwl4965_rx_packet
*res
= NULL
;
1102 struct iwl_host_cmd cmd
= {
1103 .id
= REPLY_ADD_STA
,
1104 .len
= sizeof(struct iwl4965_addsta_cmd
),
1105 .meta
.flags
= flags
,
1109 if (flags
& CMD_ASYNC
)
1110 cmd
.meta
.u
.callback
= iwl4965_add_sta_sync_callback
;
1112 cmd
.meta
.flags
|= CMD_WANT_SKB
;
1114 rc
= iwl_send_cmd(priv
, &cmd
);
1116 if (rc
|| (flags
& CMD_ASYNC
))
1119 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1120 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1121 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1127 switch (res
->u
.add_sta
.status
) {
1128 case ADD_STA_SUCCESS_MSK
:
1129 IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
1133 IWL_WARNING("REPLY_ADD_STA failed\n");
1138 priv
->alloc_rxb_skb
--;
1139 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1144 static int iwl4965_set_ccmp_dynamic_key_info(struct iwl_priv
*priv
,
1145 struct ieee80211_key_conf
*keyconf
,
1148 unsigned long flags
;
1149 __le16 key_flags
= 0;
1151 key_flags
|= (STA_KEY_FLG_CCMP
| STA_KEY_FLG_MAP_KEY_MSK
);
1152 key_flags
|= cpu_to_le16(keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
1154 if (sta_id
== priv
->hw_setting
.bcast_sta_id
)
1155 key_flags
|= STA_KEY_MULTICAST_MSK
;
1157 keyconf
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
1158 keyconf
->hw_key_idx
= keyconf
->keyidx
;
1160 key_flags
&= ~STA_KEY_FLG_INVALID
;
1162 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1163 priv
->stations
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
1164 priv
->stations
[sta_id
].keyinfo
.keylen
= keyconf
->keylen
;
1166 memcpy(priv
->stations
[sta_id
].keyinfo
.key
, keyconf
->key
,
1169 memcpy(priv
->stations
[sta_id
].sta
.key
.key
, keyconf
->key
,
1172 priv
->stations
[sta_id
].sta
.key
.key_offset
1173 = (sta_id
% STA_KEY_MAX_NUM
);/*FIXME*/
1174 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
1175 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1176 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1178 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1180 IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
1181 return iwl4965_send_add_station(priv
,
1182 &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
1185 static int iwl4965_set_tkip_dynamic_key_info(struct iwl_priv
*priv
,
1186 struct ieee80211_key_conf
*keyconf
,
1189 unsigned long flags
;
1192 keyconf
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
1193 keyconf
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
1194 keyconf
->hw_key_idx
= keyconf
->keyidx
;
1196 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1198 priv
->stations
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
1199 priv
->stations
[sta_id
].keyinfo
.conf
= keyconf
;
1200 priv
->stations
[sta_id
].keyinfo
.keylen
= 16;
1202 /* This copy is acutally not needed: we get the key with each TX */
1203 memcpy(priv
->stations
[sta_id
].keyinfo
.key
, keyconf
->key
, 16);
1205 memcpy(priv
->stations
[sta_id
].sta
.key
.key
, keyconf
->key
, 16);
1207 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1212 static int iwl4965_clear_sta_key_info(struct iwl_priv
*priv
, u8 sta_id
)
1214 unsigned long flags
;
1216 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1217 memset(&priv
->stations
[sta_id
].keyinfo
, 0, sizeof(struct iwl4965_hw_key
));
1218 memset(&priv
->stations
[sta_id
].sta
.key
, 0, sizeof(struct iwl4965_keyinfo
));
1219 priv
->stations
[sta_id
].sta
.key
.key_flags
= STA_KEY_FLG_NO_ENC
;
1220 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1221 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1222 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1224 IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
1225 iwl4965_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, 0);
1229 static int iwl4965_set_dynamic_key(struct iwl_priv
*priv
,
1230 struct ieee80211_key_conf
*key
, u8 sta_id
)
1236 ret
= iwl4965_set_ccmp_dynamic_key_info(priv
, key
, sta_id
);
1239 ret
= iwl4965_set_tkip_dynamic_key_info(priv
, key
, sta_id
);
1245 IWL_ERROR("Unknown alg: %s alg = %d\n", __func__
, key
->alg
);
1252 static int iwl4965_remove_static_key(struct iwl_priv
*priv
)
1254 int ret
= -EOPNOTSUPP
;
1259 static int iwl4965_set_static_key(struct iwl_priv
*priv
,
1260 struct ieee80211_key_conf
*key
)
1262 if (key
->alg
== ALG_WEP
)
1265 IWL_ERROR("Static key invalid: alg %d\n", key
->alg
);
1269 static void iwl4965_clear_free_frames(struct iwl_priv
*priv
)
1271 struct list_head
*element
;
1273 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
1274 priv
->frames_count
);
1276 while (!list_empty(&priv
->free_frames
)) {
1277 element
= priv
->free_frames
.next
;
1279 kfree(list_entry(element
, struct iwl4965_frame
, list
));
1280 priv
->frames_count
--;
1283 if (priv
->frames_count
) {
1284 IWL_WARNING("%d frames still in use. Did we lose one?\n",
1285 priv
->frames_count
);
1286 priv
->frames_count
= 0;
1290 static struct iwl4965_frame
*iwl4965_get_free_frame(struct iwl_priv
*priv
)
1292 struct iwl4965_frame
*frame
;
1293 struct list_head
*element
;
1294 if (list_empty(&priv
->free_frames
)) {
1295 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
1297 IWL_ERROR("Could not allocate frame!\n");
1301 priv
->frames_count
++;
1305 element
= priv
->free_frames
.next
;
1307 return list_entry(element
, struct iwl4965_frame
, list
);
1310 static void iwl4965_free_frame(struct iwl_priv
*priv
, struct iwl4965_frame
*frame
)
1312 memset(frame
, 0, sizeof(*frame
));
1313 list_add(&frame
->list
, &priv
->free_frames
);
1316 unsigned int iwl4965_fill_beacon_frame(struct iwl_priv
*priv
,
1317 struct ieee80211_hdr
*hdr
,
1318 const u8
*dest
, int left
)
1321 if (!iwl4965_is_associated(priv
) || !priv
->ibss_beacon
||
1322 ((priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) &&
1323 (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
)))
1326 if (priv
->ibss_beacon
->len
> left
)
1329 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
1331 return priv
->ibss_beacon
->len
;
1334 static u8
iwl4965_rate_get_lowest_plcp(int rate_mask
)
1338 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
1339 i
= iwl4965_rates
[i
].next_ieee
) {
1340 if (rate_mask
& (1 << i
))
1341 return iwl4965_rates
[i
].plcp
;
1344 return IWL_RATE_INVALID
;
1347 static int iwl4965_send_beacon_cmd(struct iwl_priv
*priv
)
1349 struct iwl4965_frame
*frame
;
1350 unsigned int frame_size
;
1354 frame
= iwl4965_get_free_frame(priv
);
1357 IWL_ERROR("Could not obtain free frame buffer for beacon "
1362 if (!(priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)) {
1363 rate
= iwl4965_rate_get_lowest_plcp(priv
->active_rate_basic
&
1365 if (rate
== IWL_INVALID_RATE
)
1366 rate
= IWL_RATE_6M_PLCP
;
1368 rate
= iwl4965_rate_get_lowest_plcp(priv
->active_rate_basic
& 0xF);
1369 if (rate
== IWL_INVALID_RATE
)
1370 rate
= IWL_RATE_1M_PLCP
;
1373 frame_size
= iwl4965_hw_get_beacon_cmd(priv
, frame
, rate
);
1375 rc
= iwl_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
1378 iwl4965_free_frame(priv
, frame
);
1383 /******************************************************************************
1385 * Misc. internal state and helper functions
1387 ******************************************************************************/
1389 static void iwl4965_unset_hw_setting(struct iwl_priv
*priv
)
1391 if (priv
->hw_setting
.shared_virt
)
1392 pci_free_consistent(priv
->pci_dev
,
1393 sizeof(struct iwl4965_shared
),
1394 priv
->hw_setting
.shared_virt
,
1395 priv
->hw_setting
.shared_phys
);
1399 * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field
1401 * return : set the bit for each supported rate insert in ie
1403 static u16
iwl4965_supported_rate_to_ie(u8
*ie
, u16 supported_rate
,
1404 u16 basic_rate
, int *left
)
1406 u16 ret_rates
= 0, bit
;
1411 for (bit
= 1, i
= 0; i
< IWL_RATE_COUNT
; i
++, bit
<<= 1) {
1412 if (bit
& supported_rate
) {
1414 rates
[*cnt
] = iwl4965_rates
[i
].ieee
|
1415 ((bit
& basic_rate
) ? 0x80 : 0x00);
1419 (*cnt
>= IWL_SUPPORTED_RATES_IE_LEN
))
1428 * iwl4965_fill_probe_req - fill in all required fields and IE for probe request
1430 static u16
iwl4965_fill_probe_req(struct iwl_priv
*priv
,
1431 enum ieee80211_band band
,
1432 struct ieee80211_mgmt
*frame
,
1433 int left
, int is_direct
)
1437 u16 active_rates
, ret_rates
, cck_rates
, active_rate_basic
;
1438 #ifdef CONFIG_IWL4965_HT
1439 const struct ieee80211_supported_band
*sband
=
1440 iwl4965_get_hw_mode(priv
, band
);
1441 #endif /* CONFIG_IWL4965_HT */
1443 /* Make sure there is enough space for the probe request,
1444 * two mandatory IEs and the data */
1450 frame
->frame_control
= cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
);
1451 memcpy(frame
->da
, iwl4965_broadcast_addr
, ETH_ALEN
);
1452 memcpy(frame
->sa
, priv
->mac_addr
, ETH_ALEN
);
1453 memcpy(frame
->bssid
, iwl4965_broadcast_addr
, ETH_ALEN
);
1454 frame
->seq_ctrl
= 0;
1456 /* fill in our indirect SSID IE */
1463 pos
= &(frame
->u
.probe_req
.variable
[0]);
1464 *pos
++ = WLAN_EID_SSID
;
1467 /* fill in our direct SSID IE... */
1470 left
-= 2 + priv
->essid_len
;
1473 /* ... fill it in... */
1474 *pos
++ = WLAN_EID_SSID
;
1475 *pos
++ = priv
->essid_len
;
1476 memcpy(pos
, priv
->essid
, priv
->essid_len
);
1477 pos
+= priv
->essid_len
;
1478 len
+= 2 + priv
->essid_len
;
1481 /* fill in supported rate */
1487 /* ... fill it in... */
1488 *pos
++ = WLAN_EID_SUPP_RATES
;
1491 /* exclude 60M rate */
1492 active_rates
= priv
->rates_mask
;
1493 active_rates
&= ~IWL_RATE_60M_MASK
;
1495 active_rate_basic
= active_rates
& IWL_BASIC_RATES_MASK
;
1497 cck_rates
= IWL_CCK_RATES_MASK
& active_rates
;
1498 ret_rates
= iwl4965_supported_rate_to_ie(pos
, cck_rates
,
1499 active_rate_basic
, &left
);
1500 active_rates
&= ~ret_rates
;
1502 ret_rates
= iwl4965_supported_rate_to_ie(pos
, active_rates
,
1503 active_rate_basic
, &left
);
1504 active_rates
&= ~ret_rates
;
1508 if (active_rates
== 0)
1511 /* fill in supported extended rate */
1516 /* ... fill it in... */
1517 *pos
++ = WLAN_EID_EXT_SUPP_RATES
;
1519 iwl4965_supported_rate_to_ie(pos
, active_rates
,
1520 active_rate_basic
, &left
);
1524 #ifdef CONFIG_IWL4965_HT
1525 if (sband
&& sband
->ht_info
.ht_supported
) {
1526 struct ieee80211_ht_cap
*ht_cap
;
1528 *pos
++ = WLAN_EID_HT_CAPABILITY
;
1529 *pos
++ = sizeof(struct ieee80211_ht_cap
);
1530 ht_cap
= (struct ieee80211_ht_cap
*)pos
;
1531 ht_cap
->cap_info
= cpu_to_le16(sband
->ht_info
.cap
);
1532 memcpy(ht_cap
->supp_mcs_set
, sband
->ht_info
.supp_mcs_set
, 16);
1533 ht_cap
->ampdu_params_info
=(sband
->ht_info
.ampdu_factor
&
1534 IEEE80211_HT_CAP_AMPDU_FACTOR
) |
1535 ((sband
->ht_info
.ampdu_density
<< 2) &
1536 IEEE80211_HT_CAP_AMPDU_DENSITY
);
1537 len
+= 2 + sizeof(struct ieee80211_ht_cap
);
1539 #endif /*CONFIG_IWL4965_HT */
1548 static int iwl4965_send_qos_params_command(struct iwl_priv
*priv
,
1549 struct iwl4965_qosparam_cmd
*qos
)
1552 return iwl_send_cmd_pdu(priv
, REPLY_QOS_PARAM
,
1553 sizeof(struct iwl4965_qosparam_cmd
), qos
);
1556 static void iwl4965_activate_qos(struct iwl_priv
*priv
, u8 force
)
1558 unsigned long flags
;
1560 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
1563 if (!priv
->qos_data
.qos_enable
)
1566 spin_lock_irqsave(&priv
->lock
, flags
);
1567 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
1569 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
1570 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
1571 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1572 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
1573 if (priv
->qos_data
.qos_active
)
1574 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1575 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
1577 #ifdef CONFIG_IWL4965_HT
1578 if (priv
->current_ht_config
.is_ht
)
1579 priv
->qos_data
.def_qos_parm
.qos_flags
|= QOS_PARAM_FLG_TGN_MSK
;
1580 #endif /* CONFIG_IWL4965_HT */
1582 spin_unlock_irqrestore(&priv
->lock
, flags
);
1584 if (force
|| iwl4965_is_associated(priv
)) {
1585 IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
1586 priv
->qos_data
.qos_active
,
1587 priv
->qos_data
.def_qos_parm
.qos_flags
);
1589 iwl4965_send_qos_params_command(priv
,
1590 &(priv
->qos_data
.def_qos_parm
));
1595 * Power management (not Tx power!) functions
1597 #define MSEC_TO_USEC 1024
1599 #define NOSLP __constant_cpu_to_le16(0), 0, 0
1600 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
1601 #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
1602 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
1603 __constant_cpu_to_le32(X1), \
1604 __constant_cpu_to_le32(X2), \
1605 __constant_cpu_to_le32(X3), \
1606 __constant_cpu_to_le32(X4)}
1609 /* default power management (not Tx power) table values */
1611 static struct iwl4965_power_vec_entry range_0
[IWL_POWER_AC
] = {
1612 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1613 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
1614 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
1615 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
1616 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
1617 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
1621 static struct iwl4965_power_vec_entry range_1
[IWL_POWER_AC
] = {
1622 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1623 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
1624 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
1625 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
1626 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
1627 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
1628 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
1629 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
1630 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
1631 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
1634 int iwl4965_power_init_handle(struct iwl_priv
*priv
)
1637 struct iwl4965_power_mgr
*pow_data
;
1638 int size
= sizeof(struct iwl4965_power_vec_entry
) * IWL_POWER_AC
;
1641 IWL_DEBUG_POWER("Initialize power \n");
1643 pow_data
= &(priv
->power_data
);
1645 memset(pow_data
, 0, sizeof(*pow_data
));
1647 pow_data
->active_index
= IWL_POWER_RANGE_0
;
1648 pow_data
->dtim_val
= 0xffff;
1650 memcpy(&pow_data
->pwr_range_0
[0], &range_0
[0], size
);
1651 memcpy(&pow_data
->pwr_range_1
[0], &range_1
[0], size
);
1653 rc
= pci_read_config_word(priv
->pci_dev
, PCI_LINK_CTRL
, &pci_pm
);
1657 struct iwl4965_powertable_cmd
*cmd
;
1659 IWL_DEBUG_POWER("adjust power command flags\n");
1661 for (i
= 0; i
< IWL_POWER_AC
; i
++) {
1662 cmd
= &pow_data
->pwr_range_0
[i
].cmd
;
1665 cmd
->flags
&= ~IWL_POWER_PCI_PM_MSK
;
1667 cmd
->flags
|= IWL_POWER_PCI_PM_MSK
;
1673 static int iwl4965_update_power_cmd(struct iwl_priv
*priv
,
1674 struct iwl4965_powertable_cmd
*cmd
, u32 mode
)
1679 struct iwl4965_power_vec_entry
*range
;
1681 struct iwl4965_power_mgr
*pow_data
;
1683 if (mode
> IWL_POWER_INDEX_5
) {
1684 IWL_DEBUG_POWER("Error invalid power mode \n");
1687 pow_data
= &(priv
->power_data
);
1689 if (pow_data
->active_index
== IWL_POWER_RANGE_0
)
1690 range
= &pow_data
->pwr_range_0
[0];
1692 range
= &pow_data
->pwr_range_1
[1];
1694 memcpy(cmd
, &range
[mode
].cmd
, sizeof(struct iwl4965_powertable_cmd
));
1696 #ifdef IWL_MAC80211_DISABLE
1697 if (priv
->assoc_network
!= NULL
) {
1698 unsigned long flags
;
1700 period
= priv
->assoc_network
->tim
.tim_period
;
1702 #endif /*IWL_MAC80211_DISABLE */
1703 skip
= range
[mode
].no_dtim
;
1712 cmd
->flags
&= ~IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1714 __le32 slp_itrvl
= cmd
->sleep_interval
[IWL_POWER_VEC_SIZE
- 1];
1715 max_sleep
= (le32_to_cpu(slp_itrvl
) / period
) * period
;
1716 cmd
->flags
|= IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1719 for (i
= 0; i
< IWL_POWER_VEC_SIZE
; i
++) {
1720 if (le32_to_cpu(cmd
->sleep_interval
[i
]) > max_sleep
)
1721 cmd
->sleep_interval
[i
] = cpu_to_le32(max_sleep
);
1724 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd
->flags
);
1725 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd
->tx_data_timeout
));
1726 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd
->rx_data_timeout
));
1727 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
1728 le32_to_cpu(cmd
->sleep_interval
[0]),
1729 le32_to_cpu(cmd
->sleep_interval
[1]),
1730 le32_to_cpu(cmd
->sleep_interval
[2]),
1731 le32_to_cpu(cmd
->sleep_interval
[3]),
1732 le32_to_cpu(cmd
->sleep_interval
[4]));
1737 static int iwl4965_send_power_mode(struct iwl_priv
*priv
, u32 mode
)
1739 u32
uninitialized_var(final_mode
);
1741 struct iwl4965_powertable_cmd cmd
;
1743 /* If on battery, set to 3,
1744 * if plugged into AC power, set to CAM ("continuously aware mode"),
1745 * else user level */
1747 case IWL_POWER_BATTERY
:
1748 final_mode
= IWL_POWER_INDEX_3
;
1751 final_mode
= IWL_POWER_MODE_CAM
;
1758 cmd
.keep_alive_beacons
= 0;
1760 iwl4965_update_power_cmd(priv
, &cmd
, final_mode
);
1762 rc
= iwl_send_cmd_pdu(priv
, POWER_TABLE_CMD
, sizeof(cmd
), &cmd
);
1764 if (final_mode
== IWL_POWER_MODE_CAM
)
1765 clear_bit(STATUS_POWER_PMI
, &priv
->status
);
1767 set_bit(STATUS_POWER_PMI
, &priv
->status
);
1772 int iwl4965_is_network_packet(struct iwl_priv
*priv
, struct ieee80211_hdr
*header
)
1774 /* Filter incoming packets to determine if they are targeted toward
1775 * this network, discarding packets coming from ourselves */
1776 switch (priv
->iw_mode
) {
1777 case IEEE80211_IF_TYPE_IBSS
: /* Header: Dest. | Source | BSSID */
1778 /* packets from our adapter are dropped (echo) */
1779 if (!compare_ether_addr(header
->addr2
, priv
->mac_addr
))
1781 /* {broad,multi}cast packets to our IBSS go through */
1782 if (is_multicast_ether_addr(header
->addr1
))
1783 return !compare_ether_addr(header
->addr3
, priv
->bssid
);
1784 /* packets to our adapter go through */
1785 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
1786 case IEEE80211_IF_TYPE_STA
: /* Header: Dest. | AP{BSSID} | Source */
1787 /* packets from our adapter are dropped (echo) */
1788 if (!compare_ether_addr(header
->addr3
, priv
->mac_addr
))
1790 /* {broad,multi}cast packets to our BSS go through */
1791 if (is_multicast_ether_addr(header
->addr1
))
1792 return !compare_ether_addr(header
->addr2
, priv
->bssid
);
1793 /* packets to our adapter go through */
1794 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
1800 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
1802 static const char *iwl4965_get_tx_fail_reason(u32 status
)
1804 switch (status
& TX_STATUS_MSK
) {
1805 case TX_STATUS_SUCCESS
:
1807 TX_STATUS_ENTRY(SHORT_LIMIT
);
1808 TX_STATUS_ENTRY(LONG_LIMIT
);
1809 TX_STATUS_ENTRY(FIFO_UNDERRUN
);
1810 TX_STATUS_ENTRY(MGMNT_ABORT
);
1811 TX_STATUS_ENTRY(NEXT_FRAG
);
1812 TX_STATUS_ENTRY(LIFE_EXPIRE
);
1813 TX_STATUS_ENTRY(DEST_PS
);
1814 TX_STATUS_ENTRY(ABORTED
);
1815 TX_STATUS_ENTRY(BT_RETRY
);
1816 TX_STATUS_ENTRY(STA_INVALID
);
1817 TX_STATUS_ENTRY(FRAG_DROPPED
);
1818 TX_STATUS_ENTRY(TID_DISABLE
);
1819 TX_STATUS_ENTRY(FRAME_FLUSHED
);
1820 TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL
);
1821 TX_STATUS_ENTRY(TX_LOCKED
);
1822 TX_STATUS_ENTRY(NO_BEACON_ON_RADAR
);
1829 * iwl4965_scan_cancel - Cancel any currently executing HW scan
1831 * NOTE: priv->mutex is not required before calling this function
1833 static int iwl4965_scan_cancel(struct iwl_priv
*priv
)
1835 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1836 clear_bit(STATUS_SCANNING
, &priv
->status
);
1840 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
1841 if (!test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
1842 IWL_DEBUG_SCAN("Queuing scan abort.\n");
1843 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1844 queue_work(priv
->workqueue
, &priv
->abort_scan
);
1847 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
1849 return test_bit(STATUS_SCANNING
, &priv
->status
);
1856 * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan
1857 * @ms: amount of time to wait (in milliseconds) for scan to abort
1859 * NOTE: priv->mutex must be held before calling this function
1861 static int iwl4965_scan_cancel_timeout(struct iwl_priv
*priv
, unsigned long ms
)
1863 unsigned long now
= jiffies
;
1866 ret
= iwl4965_scan_cancel(priv
);
1868 mutex_unlock(&priv
->mutex
);
1869 while (!time_after(jiffies
, now
+ msecs_to_jiffies(ms
)) &&
1870 test_bit(STATUS_SCANNING
, &priv
->status
))
1872 mutex_lock(&priv
->mutex
);
1874 return test_bit(STATUS_SCANNING
, &priv
->status
);
1880 static void iwl4965_sequence_reset(struct iwl_priv
*priv
)
1882 /* Reset ieee stats */
1884 /* We don't reset the net_device_stats (ieee->stats) on
1887 priv
->last_seq_num
= -1;
1888 priv
->last_frag_num
= -1;
1889 priv
->last_packet_time
= 0;
1891 iwl4965_scan_cancel(priv
);
1894 #define MAX_UCODE_BEACON_INTERVAL 4096
1895 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
1897 static __le16
iwl4965_adjust_beacon_interval(u16 beacon_val
)
1900 u16 beacon_factor
= 0;
1903 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
1904 / MAX_UCODE_BEACON_INTERVAL
;
1905 new_val
= beacon_val
/ beacon_factor
;
1907 return cpu_to_le16(new_val
);
1910 static void iwl4965_setup_rxon_timing(struct iwl_priv
*priv
)
1912 u64 interval_tm_unit
;
1914 unsigned long flags
;
1915 struct ieee80211_conf
*conf
= NULL
;
1918 conf
= ieee80211_get_hw_conf(priv
->hw
);
1920 spin_lock_irqsave(&priv
->lock
, flags
);
1921 priv
->rxon_timing
.timestamp
.dw
[1] = cpu_to_le32(priv
->timestamp1
);
1922 priv
->rxon_timing
.timestamp
.dw
[0] = cpu_to_le32(priv
->timestamp0
);
1924 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
1926 tsf
= priv
->timestamp1
;
1927 tsf
= ((tsf
<< 32) | priv
->timestamp0
);
1929 beacon_int
= priv
->beacon_int
;
1930 spin_unlock_irqrestore(&priv
->lock
, flags
);
1932 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) {
1933 if (beacon_int
== 0) {
1934 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
1935 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
1937 priv
->rxon_timing
.beacon_interval
=
1938 cpu_to_le16(beacon_int
);
1939 priv
->rxon_timing
.beacon_interval
=
1940 iwl4965_adjust_beacon_interval(
1941 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
1944 priv
->rxon_timing
.atim_window
= 0;
1946 priv
->rxon_timing
.beacon_interval
=
1947 iwl4965_adjust_beacon_interval(conf
->beacon_int
);
1948 /* TODO: we need to get atim_window from upper stack
1949 * for now we set to 0 */
1950 priv
->rxon_timing
.atim_window
= 0;
1954 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
1955 result
= do_div(tsf
, interval_tm_unit
);
1956 priv
->rxon_timing
.beacon_init_val
=
1957 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
1960 ("beacon interval %d beacon timer %d beacon tim %d\n",
1961 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
1962 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
1963 le16_to_cpu(priv
->rxon_timing
.atim_window
));
1966 static int iwl4965_scan_initiate(struct iwl_priv
*priv
)
1968 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
1969 IWL_ERROR("APs don't scan.\n");
1973 if (!iwl4965_is_ready_rf(priv
)) {
1974 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
1978 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
1979 IWL_DEBUG_SCAN("Scan already in progress.\n");
1983 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
1984 IWL_DEBUG_SCAN("Scan request while abort pending. "
1989 IWL_DEBUG_INFO("Starting scan...\n");
1990 priv
->scan_bands
= 2;
1991 set_bit(STATUS_SCANNING
, &priv
->status
);
1992 priv
->scan_start
= jiffies
;
1993 priv
->scan_pass_start
= priv
->scan_start
;
1995 queue_work(priv
->workqueue
, &priv
->request_scan
);
2001 static void iwl4965_set_flags_for_phymode(struct iwl_priv
*priv
,
2002 enum ieee80211_band band
)
2004 if (band
== IEEE80211_BAND_5GHZ
) {
2005 priv
->staging_rxon
.flags
&=
2006 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
2007 | RXON_FLG_CCK_MSK
);
2008 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2010 /* Copied from iwl4965_bg_post_associate() */
2011 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
2012 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2014 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2016 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
2017 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2019 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
2020 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
2021 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
2026 * initialize rxon structure with default values from eeprom
2028 static void iwl4965_connection_init_rx_config(struct iwl_priv
*priv
)
2030 const struct iwl_channel_info
*ch_info
;
2032 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
2034 switch (priv
->iw_mode
) {
2035 case IEEE80211_IF_TYPE_AP
:
2036 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
2039 case IEEE80211_IF_TYPE_STA
:
2040 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
2041 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
2044 case IEEE80211_IF_TYPE_IBSS
:
2045 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
2046 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
2047 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
2048 RXON_FILTER_ACCEPT_GRP_MSK
;
2051 case IEEE80211_IF_TYPE_MNTR
:
2052 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
2053 priv
->staging_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
2054 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
2059 /* TODO: Figure out when short_preamble would be set and cache from
2061 if (!hw_to_local(priv
->hw
)->short_preamble
)
2062 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2064 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2067 ch_info
= iwl_get_channel_info(priv
, priv
->band
,
2068 le16_to_cpu(priv
->staging_rxon
.channel
));
2071 ch_info
= &priv
->channel_info
[0];
2074 * in some case A channels are all non IBSS
2075 * in this case force B/G channel
2077 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) &&
2078 !(is_channel_ibss(ch_info
)))
2079 ch_info
= &priv
->channel_info
[0];
2081 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
2082 priv
->band
= ch_info
->band
;
2084 iwl4965_set_flags_for_phymode(priv
, priv
->band
);
2086 priv
->staging_rxon
.ofdm_basic_rates
=
2087 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2088 priv
->staging_rxon
.cck_basic_rates
=
2089 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2091 priv
->staging_rxon
.flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK
|
2092 RXON_FLG_CHANNEL_MODE_PURE_40_MSK
);
2093 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2094 memcpy(priv
->staging_rxon
.wlap_bssid_addr
, priv
->mac_addr
, ETH_ALEN
);
2095 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
= 0xff;
2096 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
= 0xff;
2097 iwl4965_set_rxon_chain(priv
);
2100 static int iwl4965_set_mode(struct iwl_priv
*priv
, int mode
)
2102 if (mode
== IEEE80211_IF_TYPE_IBSS
) {
2103 const struct iwl_channel_info
*ch_info
;
2105 ch_info
= iwl_get_channel_info(priv
,
2107 le16_to_cpu(priv
->staging_rxon
.channel
));
2109 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
2110 IWL_ERROR("channel %d not IBSS channel\n",
2111 le16_to_cpu(priv
->staging_rxon
.channel
));
2116 priv
->iw_mode
= mode
;
2118 iwl4965_connection_init_rx_config(priv
);
2119 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2121 iwlcore_clear_stations_table(priv
);
2123 /* dont commit rxon if rf-kill is on*/
2124 if (!iwl4965_is_ready_rf(priv
))
2127 cancel_delayed_work(&priv
->scan_check
);
2128 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
2129 IWL_WARNING("Aborted scan still in progress after 100ms\n");
2130 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
2134 iwl4965_commit_rxon(priv
);
2139 static void iwl4965_build_tx_cmd_hwcrypto(struct iwl_priv
*priv
,
2140 struct ieee80211_tx_control
*ctl
,
2141 struct iwl_cmd
*cmd
,
2142 struct sk_buff
*skb_frag
,
2145 struct iwl4965_hw_key
*keyinfo
= &priv
->stations
[sta_id
].keyinfo
;
2147 switch (keyinfo
->alg
) {
2149 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_CCM
;
2150 memcpy(cmd
->cmd
.tx
.key
, keyinfo
->key
, keyinfo
->keylen
);
2151 if (ctl
->flags
& IEEE80211_TXCTL_AMPDU
)
2152 cmd
->cmd
.tx
.tx_flags
|= TX_CMD_FLG_AGG_CCMP_MSK
;
2153 IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
2157 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_TKIP
;
2158 ieee80211_get_tkip_key(keyinfo
->conf
, skb_frag
,
2159 IEEE80211_TKIP_P2_KEY
, cmd
->cmd
.tx
.key
);
2160 IWL_DEBUG_TX("tx_cmd with tkip hwcrypto\n");
2164 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_WEP
|
2165 (ctl
->key_idx
& TX_CMD_SEC_MSK
) << TX_CMD_SEC_SHIFT
;
2167 if (keyinfo
->keylen
== 13)
2168 cmd
->cmd
.tx
.sec_ctl
|= TX_CMD_SEC_KEY128
;
2170 memcpy(&cmd
->cmd
.tx
.key
[3], keyinfo
->key
, keyinfo
->keylen
);
2172 IWL_DEBUG_TX("Configuring packet for WEP encryption "
2173 "with key %d\n", ctl
->key_idx
);
2177 printk(KERN_ERR
"Unknown encode alg %d\n", keyinfo
->alg
);
2183 * handle build REPLY_TX command notification.
2185 static void iwl4965_build_tx_cmd_basic(struct iwl_priv
*priv
,
2186 struct iwl_cmd
*cmd
,
2187 struct ieee80211_tx_control
*ctrl
,
2188 struct ieee80211_hdr
*hdr
,
2189 int is_unicast
, u8 std_id
)
2192 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2193 __le32 tx_flags
= cmd
->cmd
.tx
.tx_flags
;
2195 cmd
->cmd
.tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
2196 if (!(ctrl
->flags
& IEEE80211_TXCTL_NO_ACK
)) {
2197 tx_flags
|= TX_CMD_FLG_ACK_MSK
;
2198 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
)
2199 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2200 if (ieee80211_is_probe_response(fc
) &&
2201 !(le16_to_cpu(hdr
->seq_ctrl
) & 0xf))
2202 tx_flags
|= TX_CMD_FLG_TSF_MSK
;
2204 tx_flags
&= (~TX_CMD_FLG_ACK_MSK
);
2205 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2208 if (ieee80211_is_back_request(fc
))
2209 tx_flags
|= TX_CMD_FLG_ACK_MSK
| TX_CMD_FLG_IMM_BA_RSP_MASK
;
2212 cmd
->cmd
.tx
.sta_id
= std_id
;
2213 if (ieee80211_get_morefrag(hdr
))
2214 tx_flags
|= TX_CMD_FLG_MORE_FRAG_MSK
;
2216 qc
= ieee80211_get_qos_ctrl(hdr
);
2218 cmd
->cmd
.tx
.tid_tspec
= (u8
) (le16_to_cpu(*qc
) & 0xf);
2219 tx_flags
&= ~TX_CMD_FLG_SEQ_CTL_MSK
;
2221 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2223 if (ctrl
->flags
& IEEE80211_TXCTL_USE_RTS_CTS
) {
2224 tx_flags
|= TX_CMD_FLG_RTS_MSK
;
2225 tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
2226 } else if (ctrl
->flags
& IEEE80211_TXCTL_USE_CTS_PROTECT
) {
2227 tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
2228 tx_flags
|= TX_CMD_FLG_CTS_MSK
;
2231 if ((tx_flags
& TX_CMD_FLG_RTS_MSK
) || (tx_flags
& TX_CMD_FLG_CTS_MSK
))
2232 tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
2234 tx_flags
&= ~(TX_CMD_FLG_ANT_SEL_MSK
);
2235 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
) {
2236 if ((fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_ASSOC_REQ
||
2237 (fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_REASSOC_REQ
)
2238 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(3);
2240 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(2);
2242 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= 0;
2244 cmd
->cmd
.tx
.driver_txop
= 0;
2245 cmd
->cmd
.tx
.tx_flags
= tx_flags
;
2246 cmd
->cmd
.tx
.next_frame_len
= 0;
2248 static void iwl_update_tx_stats(struct iwl_priv
*priv
, u16 fc
, u16 len
)
2250 /* 0 - mgmt, 1 - cnt, 2 - data */
2251 int idx
= (fc
& IEEE80211_FCTL_FTYPE
) >> 2;
2252 priv
->tx_stats
[idx
].cnt
++;
2253 priv
->tx_stats
[idx
].bytes
+= len
;
2256 * iwl4965_get_sta_id - Find station's index within station table
2258 * If new IBSS station, create new entry in station table
2260 static int iwl4965_get_sta_id(struct iwl_priv
*priv
,
2261 struct ieee80211_hdr
*hdr
)
2264 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2265 DECLARE_MAC_BUF(mac
);
2267 /* If this frame is broadcast or management, use broadcast station id */
2268 if (((fc
& IEEE80211_FCTL_FTYPE
) != IEEE80211_FTYPE_DATA
) ||
2269 is_multicast_ether_addr(hdr
->addr1
))
2270 return priv
->hw_setting
.bcast_sta_id
;
2272 switch (priv
->iw_mode
) {
2274 /* If we are a client station in a BSS network, use the special
2275 * AP station entry (that's the only station we communicate with) */
2276 case IEEE80211_IF_TYPE_STA
:
2279 /* If we are an AP, then find the station, or use BCAST */
2280 case IEEE80211_IF_TYPE_AP
:
2281 sta_id
= iwl4965_hw_find_station(priv
, hdr
->addr1
);
2282 if (sta_id
!= IWL_INVALID_STATION
)
2284 return priv
->hw_setting
.bcast_sta_id
;
2286 /* If this frame is going out to an IBSS network, find the station,
2287 * or create a new station table entry */
2288 case IEEE80211_IF_TYPE_IBSS
:
2289 sta_id
= iwl4965_hw_find_station(priv
, hdr
->addr1
);
2290 if (sta_id
!= IWL_INVALID_STATION
)
2293 /* Create new station table entry */
2294 sta_id
= iwl4965_add_station_flags(priv
, hdr
->addr1
,
2295 0, CMD_ASYNC
, NULL
);
2297 if (sta_id
!= IWL_INVALID_STATION
)
2300 IWL_DEBUG_DROP("Station %s not in station map. "
2301 "Defaulting to broadcast...\n",
2302 print_mac(mac
, hdr
->addr1
));
2303 iwl_print_hex_dump(IWL_DL_DROP
, (u8
*) hdr
, sizeof(*hdr
));
2304 return priv
->hw_setting
.bcast_sta_id
;
2307 IWL_WARNING("Unknown mode of operation: %d", priv
->iw_mode
);
2308 return priv
->hw_setting
.bcast_sta_id
;
2313 * start REPLY_TX command process
2315 static int iwl4965_tx_skb(struct iwl_priv
*priv
,
2316 struct sk_buff
*skb
, struct ieee80211_tx_control
*ctl
)
2318 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
2319 struct iwl4965_tfd_frame
*tfd
;
2321 int txq_id
= ctl
->queue
;
2322 struct iwl4965_tx_queue
*txq
= NULL
;
2323 struct iwl4965_queue
*q
= NULL
;
2324 dma_addr_t phys_addr
;
2325 dma_addr_t txcmd_phys
;
2326 dma_addr_t scratch_phys
;
2327 struct iwl_cmd
*out_cmd
= NULL
;
2328 u16 len
, idx
, len_org
;
2329 u8 id
, hdr_len
, unicast
;
2334 u8 wait_write_ptr
= 0;
2335 unsigned long flags
;
2338 spin_lock_irqsave(&priv
->lock
, flags
);
2339 if (iwl4965_is_rfkill(priv
)) {
2340 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2345 IWL_DEBUG_DROP("Dropping - !priv->vif\n");
2349 if ((ctl
->tx_rate
->hw_value
& 0xFF) == IWL_INVALID_RATE
) {
2350 IWL_ERROR("ERROR: No TX rate available.\n");
2354 unicast
= !is_multicast_ether_addr(hdr
->addr1
);
2357 fc
= le16_to_cpu(hdr
->frame_control
);
2359 #ifdef CONFIG_IWLWIFI_DEBUG
2360 if (ieee80211_is_auth(fc
))
2361 IWL_DEBUG_TX("Sending AUTH frame\n");
2362 else if (ieee80211_is_assoc_request(fc
))
2363 IWL_DEBUG_TX("Sending ASSOC frame\n");
2364 else if (ieee80211_is_reassoc_request(fc
))
2365 IWL_DEBUG_TX("Sending REASSOC frame\n");
2368 /* drop all data frame if we are not associated */
2369 if (((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_DATA
) &&
2370 (!iwl4965_is_associated(priv
) ||
2371 ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && !priv
->assoc_id
) ||
2372 !priv
->assoc_station_added
)) {
2373 IWL_DEBUG_DROP("Dropping - !iwl4965_is_associated\n");
2377 spin_unlock_irqrestore(&priv
->lock
, flags
);
2379 hdr_len
= ieee80211_get_hdrlen(fc
);
2381 /* Find (or create) index into station table for destination station */
2382 sta_id
= iwl4965_get_sta_id(priv
, hdr
);
2383 if (sta_id
== IWL_INVALID_STATION
) {
2384 DECLARE_MAC_BUF(mac
);
2386 IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
2387 print_mac(mac
, hdr
->addr1
));
2391 IWL_DEBUG_RATE("station Id %d\n", sta_id
);
2393 qc
= ieee80211_get_qos_ctrl(hdr
);
2395 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2396 seq_number
= priv
->stations
[sta_id
].tid
[tid
].seq_number
&
2398 hdr
->seq_ctrl
= cpu_to_le16(seq_number
) |
2400 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG
));
2402 #ifdef CONFIG_IWL4965_HT
2403 /* aggregation is on for this <sta,tid> */
2404 if (ctl
->flags
& IEEE80211_TXCTL_AMPDU
)
2405 txq_id
= priv
->stations
[sta_id
].tid
[tid
].agg
.txq_id
;
2406 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
++;
2407 #endif /* CONFIG_IWL4965_HT */
2410 /* Descriptor for chosen Tx queue */
2411 txq
= &priv
->txq
[txq_id
];
2414 spin_lock_irqsave(&priv
->lock
, flags
);
2416 /* Set up first empty TFD within this queue's circular TFD buffer */
2417 tfd
= &txq
->bd
[q
->write_ptr
];
2418 memset(tfd
, 0, sizeof(*tfd
));
2419 control_flags
= (u32
*) tfd
;
2420 idx
= get_cmd_index(q
, q
->write_ptr
, 0);
2422 /* Set up driver data for this TFD */
2423 memset(&(txq
->txb
[q
->write_ptr
]), 0, sizeof(struct iwl4965_tx_info
));
2424 txq
->txb
[q
->write_ptr
].skb
[0] = skb
;
2425 memcpy(&(txq
->txb
[q
->write_ptr
].status
.control
),
2426 ctl
, sizeof(struct ieee80211_tx_control
));
2428 /* Set up first empty entry in queue's array of Tx/cmd buffers */
2429 out_cmd
= &txq
->cmd
[idx
];
2430 memset(&out_cmd
->hdr
, 0, sizeof(out_cmd
->hdr
));
2431 memset(&out_cmd
->cmd
.tx
, 0, sizeof(out_cmd
->cmd
.tx
));
2434 * Set up the Tx-command (not MAC!) header.
2435 * Store the chosen Tx queue and TFD index within the sequence field;
2436 * after Tx, uCode's Tx response will return this value so driver can
2437 * locate the frame within the tx queue and do post-tx processing.
2439 out_cmd
->hdr
.cmd
= REPLY_TX
;
2440 out_cmd
->hdr
.sequence
= cpu_to_le16((u16
)(QUEUE_TO_SEQ(txq_id
) |
2441 INDEX_TO_SEQ(q
->write_ptr
)));
2443 /* Copy MAC header from skb into command buffer */
2444 memcpy(out_cmd
->cmd
.tx
.hdr
, hdr
, hdr_len
);
2447 * Use the first empty entry in this queue's command buffer array
2448 * to contain the Tx command and MAC header concatenated together
2449 * (payload data will be in another buffer).
2450 * Size of this varies, due to varying MAC header length.
2451 * If end is not dword aligned, we'll have 2 extra bytes at the end
2452 * of the MAC header (device reads on dword boundaries).
2453 * We'll tell device about this padding later.
2455 len
= priv
->hw_setting
.tx_cmd_len
+
2456 sizeof(struct iwl_cmd_header
) + hdr_len
;
2459 len
= (len
+ 3) & ~3;
2466 /* Physical address of this Tx command's header (not MAC header!),
2467 * within command buffer array. */
2468 txcmd_phys
= txq
->dma_addr_cmd
+ sizeof(struct iwl_cmd
) * idx
+
2469 offsetof(struct iwl_cmd
, hdr
);
2471 /* Add buffer containing Tx command and MAC(!) header to TFD's
2473 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, txcmd_phys
, len
);
2475 if (!(ctl
->flags
& IEEE80211_TXCTL_DO_NOT_ENCRYPT
))
2476 iwl4965_build_tx_cmd_hwcrypto(priv
, ctl
, out_cmd
, skb
, sta_id
);
2478 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2479 * if any (802.11 null frames have no payload). */
2480 len
= skb
->len
- hdr_len
;
2482 phys_addr
= pci_map_single(priv
->pci_dev
, skb
->data
+ hdr_len
,
2483 len
, PCI_DMA_TODEVICE
);
2484 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, len
);
2487 /* Tell 4965 about any 2-byte padding after MAC header */
2489 out_cmd
->cmd
.tx
.tx_flags
|= TX_CMD_FLG_MH_PAD_MSK
;
2491 /* Total # bytes to be transmitted */
2492 len
= (u16
)skb
->len
;
2493 out_cmd
->cmd
.tx
.len
= cpu_to_le16(len
);
2495 /* TODO need this for burst mode later on */
2496 iwl4965_build_tx_cmd_basic(priv
, out_cmd
, ctl
, hdr
, unicast
, sta_id
);
2498 /* set is_hcca to 0; it probably will never be implemented */
2499 iwl4965_hw_build_tx_cmd_rate(priv
, out_cmd
, ctl
, hdr
, sta_id
, 0);
2501 iwl_update_tx_stats(priv
, fc
, len
);
2503 scratch_phys
= txcmd_phys
+ sizeof(struct iwl_cmd_header
) +
2504 offsetof(struct iwl4965_tx_cmd
, scratch
);
2505 out_cmd
->cmd
.tx
.dram_lsb_ptr
= cpu_to_le32(scratch_phys
);
2506 out_cmd
->cmd
.tx
.dram_msb_ptr
= iwl_get_dma_hi_address(scratch_phys
);
2508 if (!ieee80211_get_morefrag(hdr
)) {
2509 txq
->need_update
= 1;
2511 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2512 priv
->stations
[sta_id
].tid
[tid
].seq_number
= seq_number
;
2516 txq
->need_update
= 0;
2519 iwl_print_hex_dump(IWL_DL_TX
, out_cmd
->cmd
.payload
,
2520 sizeof(out_cmd
->cmd
.tx
));
2522 iwl_print_hex_dump(IWL_DL_TX
, (u8
*)out_cmd
->cmd
.tx
.hdr
,
2523 ieee80211_get_hdrlen(fc
));
2525 /* Set up entry for this TFD in Tx byte-count array */
2526 iwl4965_tx_queue_update_wr_ptr(priv
, txq
, len
);
2528 /* Tell device the write index *just past* this latest filled TFD */
2529 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
2530 rc
= iwl4965_tx_queue_update_write_ptr(priv
, txq
);
2531 spin_unlock_irqrestore(&priv
->lock
, flags
);
2536 if ((iwl4965_queue_space(q
) < q
->high_mark
)
2537 && priv
->mac80211_registered
) {
2538 if (wait_write_ptr
) {
2539 spin_lock_irqsave(&priv
->lock
, flags
);
2540 txq
->need_update
= 1;
2541 iwl4965_tx_queue_update_write_ptr(priv
, txq
);
2542 spin_unlock_irqrestore(&priv
->lock
, flags
);
2545 ieee80211_stop_queue(priv
->hw
, ctl
->queue
);
2551 spin_unlock_irqrestore(&priv
->lock
, flags
);
2556 static void iwl4965_set_rate(struct iwl_priv
*priv
)
2558 const struct ieee80211_supported_band
*hw
= NULL
;
2559 struct ieee80211_rate
*rate
;
2562 hw
= iwl4965_get_hw_mode(priv
, priv
->band
);
2564 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
2568 priv
->active_rate
= 0;
2569 priv
->active_rate_basic
= 0;
2571 for (i
= 0; i
< hw
->n_bitrates
; i
++) {
2572 rate
= &(hw
->bitrates
[i
]);
2573 if (rate
->hw_value
< IWL_RATE_COUNT
)
2574 priv
->active_rate
|= (1 << rate
->hw_value
);
2577 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
2578 priv
->active_rate
, priv
->active_rate_basic
);
2581 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
2582 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
2585 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
2586 priv
->staging_rxon
.cck_basic_rates
=
2587 ((priv
->active_rate_basic
&
2588 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
2590 priv
->staging_rxon
.cck_basic_rates
=
2591 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2593 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
2594 priv
->staging_rxon
.ofdm_basic_rates
=
2595 ((priv
->active_rate_basic
&
2596 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
2597 IWL_FIRST_OFDM_RATE
) & 0xFF;
2599 priv
->staging_rxon
.ofdm_basic_rates
=
2600 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2603 static void iwl4965_radio_kill_sw(struct iwl_priv
*priv
, int disable_radio
)
2605 unsigned long flags
;
2607 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
2610 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
2611 disable_radio
? "OFF" : "ON");
2613 if (disable_radio
) {
2614 iwl4965_scan_cancel(priv
);
2615 /* FIXME: This is a workaround for AP */
2616 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
2617 spin_lock_irqsave(&priv
->lock
, flags
);
2618 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2619 CSR_UCODE_SW_BIT_RFKILL
);
2620 spin_unlock_irqrestore(&priv
->lock
, flags
);
2621 iwl4965_send_card_state(priv
, CARD_STATE_CMD_DISABLE
, 0);
2622 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2627 spin_lock_irqsave(&priv
->lock
, flags
);
2628 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2630 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2631 spin_unlock_irqrestore(&priv
->lock
, flags
);
2636 spin_lock_irqsave(&priv
->lock
, flags
);
2637 iwl4965_read32(priv
, CSR_UCODE_DRV_GP1
);
2638 if (!iwl4965_grab_nic_access(priv
))
2639 iwl4965_release_nic_access(priv
);
2640 spin_unlock_irqrestore(&priv
->lock
, flags
);
2642 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
2643 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2644 "disabled by HW switch\n");
2648 queue_work(priv
->workqueue
, &priv
->restart
);
2652 void iwl4965_set_decrypted_flag(struct iwl_priv
*priv
, struct sk_buff
*skb
,
2653 u32 decrypt_res
, struct ieee80211_rx_status
*stats
)
2656 le16_to_cpu(((struct ieee80211_hdr
*)skb
->data
)->frame_control
);
2658 if (priv
->active_rxon
.filter_flags
& RXON_FILTER_DIS_DECRYPT_MSK
)
2661 if (!(fc
& IEEE80211_FCTL_PROTECTED
))
2664 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res
);
2665 switch (decrypt_res
& RX_RES_STATUS_SEC_TYPE_MSK
) {
2666 case RX_RES_STATUS_SEC_TYPE_TKIP
:
2667 /* The uCode has got a bad phase 1 Key, pushes the packet.
2668 * Decryption will be done in SW. */
2669 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2670 RX_RES_STATUS_BAD_KEY_TTAK
)
2673 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2674 RX_RES_STATUS_BAD_ICV_MIC
)
2675 stats
->flag
|= RX_FLAG_MMIC_ERROR
;
2676 case RX_RES_STATUS_SEC_TYPE_WEP
:
2677 case RX_RES_STATUS_SEC_TYPE_CCMP
:
2678 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2679 RX_RES_STATUS_DECRYPT_OK
) {
2680 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
2681 stats
->flag
|= RX_FLAG_DECRYPTED
;
2691 #define IWL_PACKET_RETRY_TIME HZ
2693 int iwl4965_is_duplicate_packet(struct iwl_priv
*priv
, struct ieee80211_hdr
*header
)
2695 u16 sc
= le16_to_cpu(header
->seq_ctrl
);
2696 u16 seq
= (sc
& IEEE80211_SCTL_SEQ
) >> 4;
2697 u16 frag
= sc
& IEEE80211_SCTL_FRAG
;
2698 u16
*last_seq
, *last_frag
;
2699 unsigned long *last_time
;
2701 switch (priv
->iw_mode
) {
2702 case IEEE80211_IF_TYPE_IBSS
:{
2703 struct list_head
*p
;
2704 struct iwl4965_ibss_seq
*entry
= NULL
;
2705 u8
*mac
= header
->addr2
;
2706 int index
= mac
[5] & (IWL_IBSS_MAC_HASH_SIZE
- 1);
2708 __list_for_each(p
, &priv
->ibss_mac_hash
[index
]) {
2709 entry
= list_entry(p
, struct iwl4965_ibss_seq
, list
);
2710 if (!compare_ether_addr(entry
->mac
, mac
))
2713 if (p
== &priv
->ibss_mac_hash
[index
]) {
2714 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
2716 IWL_ERROR("Cannot malloc new mac entry\n");
2719 memcpy(entry
->mac
, mac
, ETH_ALEN
);
2720 entry
->seq_num
= seq
;
2721 entry
->frag_num
= frag
;
2722 entry
->packet_time
= jiffies
;
2723 list_add(&entry
->list
, &priv
->ibss_mac_hash
[index
]);
2726 last_seq
= &entry
->seq_num
;
2727 last_frag
= &entry
->frag_num
;
2728 last_time
= &entry
->packet_time
;
2731 case IEEE80211_IF_TYPE_STA
:
2732 last_seq
= &priv
->last_seq_num
;
2733 last_frag
= &priv
->last_frag_num
;
2734 last_time
= &priv
->last_packet_time
;
2739 if ((*last_seq
== seq
) &&
2740 time_after(*last_time
+ IWL_PACKET_RETRY_TIME
, jiffies
)) {
2741 if (*last_frag
== frag
)
2743 if (*last_frag
+ 1 != frag
)
2744 /* out-of-order fragment */
2750 *last_time
= jiffies
;
2757 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
2759 #include "iwl-spectrum.h"
2761 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
2762 #define BEACON_TIME_MASK_HIGH 0xFF000000
2763 #define TIME_UNIT 1024
2766 * extended beacon time format
2767 * time in usec will be changed into a 32-bit value in 8:24 format
2768 * the high 1 byte is the beacon counts
2769 * the lower 3 bytes is the time in usec within one beacon interval
2772 static u32
iwl4965_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
2776 u32 interval
= beacon_interval
* 1024;
2778 if (!interval
|| !usec
)
2781 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
2782 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
2784 return (quot
<< 24) + rem
;
2787 /* base is usually what we get from ucode with each received frame,
2788 * the same as HW timer counter counting down
2791 static __le32
iwl4965_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
2793 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
2794 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
2795 u32 interval
= beacon_interval
* TIME_UNIT
;
2796 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
2797 (addon
& BEACON_TIME_MASK_HIGH
);
2799 if (base_low
> addon_low
)
2800 res
+= base_low
- addon_low
;
2801 else if (base_low
< addon_low
) {
2802 res
+= interval
+ base_low
- addon_low
;
2807 return cpu_to_le32(res
);
2810 static int iwl4965_get_measurement(struct iwl_priv
*priv
,
2811 struct ieee80211_measurement_params
*params
,
2814 struct iwl4965_spectrum_cmd spectrum
;
2815 struct iwl4965_rx_packet
*res
;
2816 struct iwl_host_cmd cmd
= {
2817 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
2818 .data
= (void *)&spectrum
,
2819 .meta
.flags
= CMD_WANT_SKB
,
2821 u32 add_time
= le64_to_cpu(params
->start_time
);
2823 int spectrum_resp_status
;
2824 int duration
= le16_to_cpu(params
->duration
);
2826 if (iwl4965_is_associated(priv
))
2828 iwl4965_usecs_to_beacons(
2829 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
2830 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2832 memset(&spectrum
, 0, sizeof(spectrum
));
2834 spectrum
.channel_count
= cpu_to_le16(1);
2836 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
2837 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
2838 cmd
.len
= sizeof(spectrum
);
2839 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
2841 if (iwl4965_is_associated(priv
))
2842 spectrum
.start_time
=
2843 iwl4965_add_beacon_time(priv
->last_beacon_time
,
2845 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2847 spectrum
.start_time
= 0;
2849 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
2850 spectrum
.channels
[0].channel
= params
->channel
;
2851 spectrum
.channels
[0].type
= type
;
2852 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
2853 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
2854 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
2856 rc
= iwl_send_cmd_sync(priv
, &cmd
);
2860 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
2861 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
2862 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
2866 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
2867 switch (spectrum_resp_status
) {
2868 case 0: /* Command will be handled */
2869 if (res
->u
.spectrum
.id
!= 0xff) {
2871 ("Replaced existing measurement: %d\n",
2872 res
->u
.spectrum
.id
);
2873 priv
->measurement_status
&= ~MEASUREMENT_READY
;
2875 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
2879 case 1: /* Command will not be handled */
2884 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
2890 static void iwl4965_txstatus_to_ieee(struct iwl_priv
*priv
,
2891 struct iwl4965_tx_info
*tx_sta
)
2894 tx_sta
->status
.ack_signal
= 0;
2895 tx_sta
->status
.excessive_retries
= 0;
2896 tx_sta
->status
.queue_length
= 0;
2897 tx_sta
->status
.queue_number
= 0;
2900 ieee80211_tx_status_irqsafe(priv
->hw
,
2901 tx_sta
->skb
[0], &(tx_sta
->status
));
2903 ieee80211_tx_status(priv
->hw
,
2904 tx_sta
->skb
[0], &(tx_sta
->status
));
2906 tx_sta
->skb
[0] = NULL
;
2910 * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
2912 * When FW advances 'R' index, all entries between old and new 'R' index
2913 * need to be reclaimed. As result, some free space forms. If there is
2914 * enough free space (> low mark), wake the stack that feeds us.
2916 int iwl4965_tx_queue_reclaim(struct iwl_priv
*priv
, int txq_id
, int index
)
2918 struct iwl4965_tx_queue
*txq
= &priv
->txq
[txq_id
];
2919 struct iwl4965_queue
*q
= &txq
->q
;
2922 if ((index
>= q
->n_bd
) || (x2_queue_used(q
, index
) == 0)) {
2923 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
2924 "is out of range [0-%d] %d %d.\n", txq_id
,
2925 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
2929 for (index
= iwl_queue_inc_wrap(index
, q
->n_bd
);
2930 q
->read_ptr
!= index
;
2931 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
2932 if (txq_id
!= IWL_CMD_QUEUE_NUM
) {
2933 iwl4965_txstatus_to_ieee(priv
,
2934 &(txq
->txb
[txq
->q
.read_ptr
]));
2935 iwl4965_hw_txq_free_tfd(priv
, txq
);
2936 } else if (nfreed
> 1) {
2937 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index
,
2938 q
->write_ptr
, q
->read_ptr
);
2939 queue_work(priv
->workqueue
, &priv
->restart
);
2944 /* if (iwl4965_queue_space(q) > q->low_mark && (txq_id >= 0) &&
2945 (txq_id != IWL_CMD_QUEUE_NUM) &&
2946 priv->mac80211_registered)
2947 ieee80211_wake_queue(priv->hw, txq_id); */
2953 static int iwl4965_is_tx_success(u32 status
)
2955 status
&= TX_STATUS_MSK
;
2956 return (status
== TX_STATUS_SUCCESS
)
2957 || (status
== TX_STATUS_DIRECT_DONE
);
2960 /******************************************************************************
2962 * Generic RX handler implementations
2964 ******************************************************************************/
2965 #ifdef CONFIG_IWL4965_HT
2967 static inline int iwl4965_get_ra_sta_id(struct iwl_priv
*priv
,
2968 struct ieee80211_hdr
*hdr
)
2970 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)
2973 u8
*da
= ieee80211_get_DA(hdr
);
2974 return iwl4965_hw_find_station(priv
, da
);
2978 static struct ieee80211_hdr
*iwl4965_tx_queue_get_hdr(
2979 struct iwl_priv
*priv
, int txq_id
, int idx
)
2981 if (priv
->txq
[txq_id
].txb
[idx
].skb
[0])
2982 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
2983 txb
[idx
].skb
[0]->data
;
2987 static inline u32
iwl4965_get_scd_ssn(struct iwl4965_tx_resp
*tx_resp
)
2989 __le32
*scd_ssn
= (__le32
*)((u32
*)&tx_resp
->status
+
2990 tx_resp
->frame_count
);
2991 return le32_to_cpu(*scd_ssn
) & MAX_SN
;
2996 * iwl4965_tx_status_reply_tx - Handle Tx rspnse for frames in aggregation queue
2998 static int iwl4965_tx_status_reply_tx(struct iwl_priv
*priv
,
2999 struct iwl4965_ht_agg
*agg
,
3000 struct iwl4965_tx_resp_agg
*tx_resp
,
3004 struct agg_tx_status
*frame_status
= &tx_resp
->status
;
3005 struct ieee80211_tx_status
*tx_status
= NULL
;
3006 struct ieee80211_hdr
*hdr
= NULL
;
3011 if (agg
->wait_for_ba
)
3012 IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
3014 agg
->frame_count
= tx_resp
->frame_count
;
3015 agg
->start_idx
= start_idx
;
3016 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
3019 /* # frames attempted by Tx command */
3020 if (agg
->frame_count
== 1) {
3021 /* Only one frame was attempted; no block-ack will arrive */
3022 status
= le16_to_cpu(frame_status
[0].status
);
3023 seq
= le16_to_cpu(frame_status
[0].sequence
);
3024 idx
= SEQ_TO_INDEX(seq
);
3025 txq_id
= SEQ_TO_QUEUE(seq
);
3027 /* FIXME: code repetition */
3028 IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
3029 agg
->frame_count
, agg
->start_idx
, idx
);
3031 tx_status
= &(priv
->txq
[txq_id
].txb
[idx
].status
);
3032 tx_status
->retry_count
= tx_resp
->failure_frame
;
3033 tx_status
->queue_number
= status
& 0xff;
3034 tx_status
->queue_length
= tx_resp
->failure_rts
;
3035 tx_status
->control
.flags
&= ~IEEE80211_TXCTL_AMPDU
;
3036 tx_status
->flags
= iwl4965_is_tx_success(status
)?
3037 IEEE80211_TX_STATUS_ACK
: 0;
3038 iwl4965_hwrate_to_tx_control(priv
,
3039 le32_to_cpu(tx_resp
->rate_n_flags
),
3040 &tx_status
->control
);
3041 /* FIXME: code repetition end */
3043 IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
3044 status
& 0xff, tx_resp
->failure_frame
);
3045 IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n",
3046 iwl4965_hw_get_rate_n_flags(tx_resp
->rate_n_flags
));
3048 agg
->wait_for_ba
= 0;
3050 /* Two or more frames were attempted; expect block-ack */
3052 int start
= agg
->start_idx
;
3054 /* Construct bit-map of pending frames within Tx window */
3055 for (i
= 0; i
< agg
->frame_count
; i
++) {
3057 status
= le16_to_cpu(frame_status
[i
].status
);
3058 seq
= le16_to_cpu(frame_status
[i
].sequence
);
3059 idx
= SEQ_TO_INDEX(seq
);
3060 txq_id
= SEQ_TO_QUEUE(seq
);
3062 if (status
& (AGG_TX_STATE_FEW_BYTES_MSK
|
3063 AGG_TX_STATE_ABORT_MSK
))
3066 IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
3067 agg
->frame_count
, txq_id
, idx
);
3069 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, idx
);
3071 sc
= le16_to_cpu(hdr
->seq_ctrl
);
3072 if (idx
!= (SEQ_TO_SN(sc
) & 0xff)) {
3073 IWL_ERROR("BUG_ON idx doesn't match seq control"
3074 " idx=%d, seq_idx=%d, seq=%d\n",
3080 IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n",
3081 i
, idx
, SEQ_TO_SN(sc
));
3085 sh
= (start
- idx
) + 0xff;
3086 bitmap
= bitmap
<< sh
;
3089 } else if (sh
< -64)
3090 sh
= 0xff - (start
- idx
);
3094 bitmap
= bitmap
<< sh
;
3097 bitmap
|= (1 << sh
);
3098 IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n",
3099 start
, (u32
)(bitmap
& 0xFFFFFFFF));
3102 agg
->bitmap
= bitmap
;
3103 agg
->start_idx
= start
;
3104 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
3105 IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n",
3106 agg
->frame_count
, agg
->start_idx
,
3110 agg
->wait_for_ba
= 1;
3117 * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response
3119 static void iwl4965_rx_reply_tx(struct iwl_priv
*priv
,
3120 struct iwl4965_rx_mem_buffer
*rxb
)
3122 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3123 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3124 int txq_id
= SEQ_TO_QUEUE(sequence
);
3125 int index
= SEQ_TO_INDEX(sequence
);
3126 struct iwl4965_tx_queue
*txq
= &priv
->txq
[txq_id
];
3127 struct ieee80211_tx_status
*tx_status
;
3128 struct iwl4965_tx_resp
*tx_resp
= (void *)&pkt
->u
.raw
[0];
3129 u32 status
= le32_to_cpu(tx_resp
->status
);
3130 #ifdef CONFIG_IWL4965_HT
3131 int tid
= MAX_TID_COUNT
, sta_id
= IWL_INVALID_STATION
;
3132 struct ieee80211_hdr
*hdr
;
3136 if ((index
>= txq
->q
.n_bd
) || (x2_queue_used(&txq
->q
, index
) == 0)) {
3137 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
3138 "is out of range [0-%d] %d %d\n", txq_id
,
3139 index
, txq
->q
.n_bd
, txq
->q
.write_ptr
,
3144 #ifdef CONFIG_IWL4965_HT
3145 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, index
);
3146 qc
= ieee80211_get_qos_ctrl(hdr
);
3149 tid
= le16_to_cpu(*qc
) & 0xf;
3151 sta_id
= iwl4965_get_ra_sta_id(priv
, hdr
);
3152 if (txq
->sched_retry
&& unlikely(sta_id
== IWL_INVALID_STATION
)) {
3153 IWL_ERROR("Station not known\n");
3157 if (txq
->sched_retry
) {
3158 const u32 scd_ssn
= iwl4965_get_scd_ssn(tx_resp
);
3159 struct iwl4965_ht_agg
*agg
= NULL
;
3164 agg
= &priv
->stations
[sta_id
].tid
[tid
].agg
;
3166 iwl4965_tx_status_reply_tx(priv
, agg
,
3167 (struct iwl4965_tx_resp_agg
*)tx_resp
, index
);
3169 if ((tx_resp
->frame_count
== 1) &&
3170 !iwl4965_is_tx_success(status
)) {
3171 /* TODO: send BAR */
3174 if (txq
->q
.read_ptr
!= (scd_ssn
& 0xff)) {
3176 index
= iwl_queue_dec_wrap(scd_ssn
& 0xff, txq
->q
.n_bd
);
3177 IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
3178 "%d index %d\n", scd_ssn
, index
);
3179 freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3180 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
3182 if (iwl4965_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
3183 txq_id
>= 0 && priv
->mac80211_registered
&&
3184 agg
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
3185 ieee80211_wake_queue(priv
->hw
, txq_id
);
3187 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
3190 #endif /* CONFIG_IWL4965_HT */
3191 tx_status
= &(txq
->txb
[txq
->q
.read_ptr
].status
);
3193 tx_status
->retry_count
= tx_resp
->failure_frame
;
3194 tx_status
->queue_number
= status
;
3195 tx_status
->queue_length
= tx_resp
->bt_kill_count
;
3196 tx_status
->queue_length
|= tx_resp
->failure_rts
;
3198 iwl4965_is_tx_success(status
) ? IEEE80211_TX_STATUS_ACK
: 0;
3199 iwl4965_hwrate_to_tx_control(priv
, le32_to_cpu(tx_resp
->rate_n_flags
),
3200 &tx_status
->control
);
3202 IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags 0x%x "
3203 "retries %d\n", txq_id
, iwl4965_get_tx_fail_reason(status
),
3204 status
, le32_to_cpu(tx_resp
->rate_n_flags
),
3205 tx_resp
->failure_frame
);
3207 IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index
);
3209 int freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3210 #ifdef CONFIG_IWL4965_HT
3211 if (tid
!= MAX_TID_COUNT
)
3212 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
3213 if (iwl4965_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
3215 priv
->mac80211_registered
)
3216 ieee80211_wake_queue(priv
->hw
, txq_id
);
3217 if (tid
!= MAX_TID_COUNT
)
3218 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
3221 #ifdef CONFIG_IWL4965_HT
3223 #endif /* CONFIG_IWL4965_HT */
3225 if (iwl_check_bits(status
, TX_ABORT_REQUIRED_MSK
))
3226 IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
3230 static void iwl4965_rx_reply_alive(struct iwl_priv
*priv
,
3231 struct iwl4965_rx_mem_buffer
*rxb
)
3233 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3234 struct iwl4965_alive_resp
*palive
;
3235 struct delayed_work
*pwork
;
3237 palive
= &pkt
->u
.alive_frame
;
3239 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
3241 palive
->is_valid
, palive
->ver_type
,
3242 palive
->ver_subtype
);
3244 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
3245 IWL_DEBUG_INFO("Initialization Alive received.\n");
3246 memcpy(&priv
->card_alive_init
,
3247 &pkt
->u
.alive_frame
,
3248 sizeof(struct iwl4965_init_alive_resp
));
3249 pwork
= &priv
->init_alive_start
;
3251 IWL_DEBUG_INFO("Runtime Alive received.\n");
3252 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
3253 sizeof(struct iwl4965_alive_resp
));
3254 pwork
= &priv
->alive_start
;
3257 /* We delay the ALIVE response by 5ms to
3258 * give the HW RF Kill time to activate... */
3259 if (palive
->is_valid
== UCODE_VALID_OK
)
3260 queue_delayed_work(priv
->workqueue
, pwork
,
3261 msecs_to_jiffies(5));
3263 IWL_WARNING("uCode did not respond OK.\n");
3266 static void iwl4965_rx_reply_add_sta(struct iwl_priv
*priv
,
3267 struct iwl4965_rx_mem_buffer
*rxb
)
3269 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3271 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
3275 static void iwl4965_rx_reply_error(struct iwl_priv
*priv
,
3276 struct iwl4965_rx_mem_buffer
*rxb
)
3278 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3280 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
3281 "seq 0x%04X ser 0x%08X\n",
3282 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
3283 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
3284 pkt
->u
.err_resp
.cmd_id
,
3285 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
3286 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
3289 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
3291 static void iwl4965_rx_csa(struct iwl_priv
*priv
, struct iwl4965_rx_mem_buffer
*rxb
)
3293 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3294 struct iwl4965_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
3295 struct iwl4965_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
3296 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
3297 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
3298 rxon
->channel
= csa
->channel
;
3299 priv
->staging_rxon
.channel
= csa
->channel
;
3302 static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv
*priv
,
3303 struct iwl4965_rx_mem_buffer
*rxb
)
3305 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
3306 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3307 struct iwl4965_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
3309 if (!report
->state
) {
3310 IWL_DEBUG(IWL_DL_11H
| IWL_DL_INFO
,
3311 "Spectrum Measure Notification: Start\n");
3315 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
3316 priv
->measurement_status
|= MEASUREMENT_READY
;
3320 static void iwl4965_rx_pm_sleep_notif(struct iwl_priv
*priv
,
3321 struct iwl4965_rx_mem_buffer
*rxb
)
3323 #ifdef CONFIG_IWLWIFI_DEBUG
3324 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3325 struct iwl4965_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
3326 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
3327 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
3331 static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
3332 struct iwl4965_rx_mem_buffer
*rxb
)
3334 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3335 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
3336 "notification for %s:\n",
3337 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
3338 iwl_print_hex_dump(IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
3341 static void iwl4965_bg_beacon_update(struct work_struct
*work
)
3343 struct iwl_priv
*priv
=
3344 container_of(work
, struct iwl_priv
, beacon_update
);
3345 struct sk_buff
*beacon
;
3347 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
3348 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
, NULL
);
3351 IWL_ERROR("update beacon failed\n");
3355 mutex_lock(&priv
->mutex
);
3356 /* new beacon skb is allocated every time; dispose previous.*/
3357 if (priv
->ibss_beacon
)
3358 dev_kfree_skb(priv
->ibss_beacon
);
3360 priv
->ibss_beacon
= beacon
;
3361 mutex_unlock(&priv
->mutex
);
3363 iwl4965_send_beacon_cmd(priv
);
3366 static void iwl4965_rx_beacon_notif(struct iwl_priv
*priv
,
3367 struct iwl4965_rx_mem_buffer
*rxb
)
3369 #ifdef CONFIG_IWLWIFI_DEBUG
3370 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3371 struct iwl4965_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
3372 u8 rate
= iwl4965_hw_get_rate(beacon
->beacon_notify_hdr
.rate_n_flags
);
3374 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
3375 "tsf %d %d rate %d\n",
3376 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
3377 beacon
->beacon_notify_hdr
.failure_frame
,
3378 le32_to_cpu(beacon
->ibss_mgr_status
),
3379 le32_to_cpu(beacon
->high_tsf
),
3380 le32_to_cpu(beacon
->low_tsf
), rate
);
3383 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
3384 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
3385 queue_work(priv
->workqueue
, &priv
->beacon_update
);
3388 /* Service response to REPLY_SCAN_CMD (0x80) */
3389 static void iwl4965_rx_reply_scan(struct iwl_priv
*priv
,
3390 struct iwl4965_rx_mem_buffer
*rxb
)
3392 #ifdef CONFIG_IWLWIFI_DEBUG
3393 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3394 struct iwl4965_scanreq_notification
*notif
=
3395 (struct iwl4965_scanreq_notification
*)pkt
->u
.raw
;
3397 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
3401 /* Service SCAN_START_NOTIFICATION (0x82) */
3402 static void iwl4965_rx_scan_start_notif(struct iwl_priv
*priv
,
3403 struct iwl4965_rx_mem_buffer
*rxb
)
3405 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3406 struct iwl4965_scanstart_notification
*notif
=
3407 (struct iwl4965_scanstart_notification
*)pkt
->u
.raw
;
3408 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
3409 IWL_DEBUG_SCAN("Scan start: "
3411 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
3413 notif
->band
? "bg" : "a",
3415 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
3418 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
3419 static void iwl4965_rx_scan_results_notif(struct iwl_priv
*priv
,
3420 struct iwl4965_rx_mem_buffer
*rxb
)
3422 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3423 struct iwl4965_scanresults_notification
*notif
=
3424 (struct iwl4965_scanresults_notification
*)pkt
->u
.raw
;
3426 IWL_DEBUG_SCAN("Scan ch.res: "
3428 "(TSF: 0x%08X:%08X) - %d "
3429 "elapsed=%lu usec (%dms since last)\n",
3431 notif
->band
? "bg" : "a",
3432 le32_to_cpu(notif
->tsf_high
),
3433 le32_to_cpu(notif
->tsf_low
),
3434 le32_to_cpu(notif
->statistics
[0]),
3435 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
3436 jiffies_to_msecs(elapsed_jiffies
3437 (priv
->last_scan_jiffies
, jiffies
)));
3439 priv
->last_scan_jiffies
= jiffies
;
3440 priv
->next_scan_jiffies
= 0;
3443 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
3444 static void iwl4965_rx_scan_complete_notif(struct iwl_priv
*priv
,
3445 struct iwl4965_rx_mem_buffer
*rxb
)
3447 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3448 struct iwl4965_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
3450 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
3451 scan_notif
->scanned_channels
,
3452 scan_notif
->tsf_low
,
3453 scan_notif
->tsf_high
, scan_notif
->status
);
3455 /* The HW is no longer scanning */
3456 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
3458 /* The scan completion notification came in, so kill that timer... */
3459 cancel_delayed_work(&priv
->scan_check
);
3461 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
3462 (priv
->scan_bands
== 2) ? "2.4" : "5.2",
3463 jiffies_to_msecs(elapsed_jiffies
3464 (priv
->scan_pass_start
, jiffies
)));
3466 /* Remove this scanned band from the list
3467 * of pending bands to scan */
3470 /* If a request to abort was given, or the scan did not succeed
3471 * then we reset the scan state machine and terminate,
3472 * re-queuing another scan if one has been requested */
3473 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3474 IWL_DEBUG_INFO("Aborted scan completed.\n");
3475 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
3477 /* If there are more bands on this scan pass reschedule */
3478 if (priv
->scan_bands
> 0)
3482 priv
->last_scan_jiffies
= jiffies
;
3483 priv
->next_scan_jiffies
= 0;
3484 IWL_DEBUG_INFO("Setting scan to off\n");
3486 clear_bit(STATUS_SCANNING
, &priv
->status
);
3488 IWL_DEBUG_INFO("Scan took %dms\n",
3489 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
3491 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3496 priv
->scan_pass_start
= jiffies
;
3497 queue_work(priv
->workqueue
, &priv
->request_scan
);
3500 /* Handle notification from uCode that card's power state is changing
3501 * due to software, hardware, or critical temperature RFKILL */
3502 static void iwl4965_rx_card_state_notif(struct iwl_priv
*priv
,
3503 struct iwl4965_rx_mem_buffer
*rxb
)
3505 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3506 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
3507 unsigned long status
= priv
->status
;
3509 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
3510 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
3511 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
3513 if (flags
& (SW_CARD_DISABLED
| HW_CARD_DISABLED
|
3514 RF_CARD_DISABLED
)) {
3516 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3517 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3519 if (!iwl4965_grab_nic_access(priv
)) {
3520 iwl4965_write_direct32(
3521 priv
, HBUS_TARG_MBX_C
,
3522 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
3524 iwl4965_release_nic_access(priv
);
3527 if (!(flags
& RXON_CARD_DISABLED
)) {
3528 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
3529 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3530 if (!iwl4965_grab_nic_access(priv
)) {
3531 iwl4965_write_direct32(
3532 priv
, HBUS_TARG_MBX_C
,
3533 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
3535 iwl4965_release_nic_access(priv
);
3539 if (flags
& RF_CARD_DISABLED
) {
3540 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3541 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
3542 iwl4965_read32(priv
, CSR_UCODE_DRV_GP1
);
3543 if (!iwl4965_grab_nic_access(priv
))
3544 iwl4965_release_nic_access(priv
);
3548 if (flags
& HW_CARD_DISABLED
)
3549 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3551 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3554 if (flags
& SW_CARD_DISABLED
)
3555 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3557 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3559 if (!(flags
& RXON_CARD_DISABLED
))
3560 iwl4965_scan_cancel(priv
);
3562 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
3563 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
3564 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
3565 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
3566 queue_work(priv
->workqueue
, &priv
->rf_kill
);
3568 wake_up_interruptible(&priv
->wait_command_queue
);
3572 * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
3574 * Setup the RX handlers for each of the reply types sent from the uCode
3577 * This function chains into the hardware specific files for them to setup
3578 * any hardware specific handlers as well.
3580 static void iwl4965_setup_rx_handlers(struct iwl_priv
*priv
)
3582 priv
->rx_handlers
[REPLY_ALIVE
] = iwl4965_rx_reply_alive
;
3583 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl4965_rx_reply_add_sta
;
3584 priv
->rx_handlers
[REPLY_ERROR
] = iwl4965_rx_reply_error
;
3585 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl4965_rx_csa
;
3586 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
3587 iwl4965_rx_spectrum_measure_notif
;
3588 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl4965_rx_pm_sleep_notif
;
3589 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
3590 iwl4965_rx_pm_debug_statistics_notif
;
3591 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl4965_rx_beacon_notif
;
3594 * The same handler is used for both the REPLY to a discrete
3595 * statistics request from the host as well as for the periodic
3596 * statistics notifications (after received beacons) from the uCode.
3598 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl4965_hw_rx_statistics
;
3599 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl4965_hw_rx_statistics
;
3601 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl4965_rx_reply_scan
;
3602 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl4965_rx_scan_start_notif
;
3603 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
3604 iwl4965_rx_scan_results_notif
;
3605 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
3606 iwl4965_rx_scan_complete_notif
;
3607 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl4965_rx_card_state_notif
;
3608 priv
->rx_handlers
[REPLY_TX
] = iwl4965_rx_reply_tx
;
3610 /* Set up hardware specific Rx handlers */
3611 iwl4965_hw_rx_handler_setup(priv
);
3615 * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3616 * @rxb: Rx buffer to reclaim
3618 * If an Rx buffer has an async callback associated with it the callback
3619 * will be executed. The attached skb (if present) will only be freed
3620 * if the callback returns 1
3622 static void iwl4965_tx_cmd_complete(struct iwl_priv
*priv
,
3623 struct iwl4965_rx_mem_buffer
*rxb
)
3625 struct iwl4965_rx_packet
*pkt
= (struct iwl4965_rx_packet
*)rxb
->skb
->data
;
3626 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3627 int txq_id
= SEQ_TO_QUEUE(sequence
);
3628 int index
= SEQ_TO_INDEX(sequence
);
3629 int huge
= sequence
& SEQ_HUGE_FRAME
;
3631 struct iwl_cmd
*cmd
;
3633 /* If a Tx command is being handled and it isn't in the actual
3634 * command queue then there a command routing bug has been introduced
3635 * in the queue management code. */
3636 if (txq_id
!= IWL_CMD_QUEUE_NUM
)
3637 IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
3638 txq_id
, pkt
->hdr
.cmd
);
3639 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
3641 cmd_index
= get_cmd_index(&priv
->txq
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
3642 cmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
3644 /* Input error checking is done when commands are added to queue. */
3645 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
3646 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
3648 } else if (cmd
->meta
.u
.callback
&&
3649 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
3652 iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3654 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
3655 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
3656 wake_up_interruptible(&priv
->wait_command_queue
);
3660 /************************** RX-FUNCTIONS ****************************/
3662 * Rx theory of operation
3664 * Driver allocates a circular buffer of Receive Buffer Descriptors (RBDs),
3665 * each of which point to Receive Buffers to be filled by 4965. These get
3666 * used not only for Rx frames, but for any command response or notification
3667 * from the 4965. The driver and 4965 manage the Rx buffers by means
3668 * of indexes into the circular buffer.
3671 * The host/firmware share two index registers for managing the Rx buffers.
3673 * The READ index maps to the first position that the firmware may be writing
3674 * to -- the driver can read up to (but not including) this position and get
3676 * The READ index is managed by the firmware once the card is enabled.
3678 * The WRITE index maps to the last position the driver has read from -- the
3679 * position preceding WRITE is the last slot the firmware can place a packet.
3681 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
3684 * During initialization, the host sets up the READ queue position to the first
3685 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3687 * When the firmware places a packet in a buffer, it will advance the READ index
3688 * and fire the RX interrupt. The driver can then query the READ index and
3689 * process as many packets as possible, moving the WRITE index forward as it
3690 * resets the Rx queue buffers with new memory.
3692 * The management in the driver is as follows:
3693 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
3694 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
3695 * to replenish the iwl->rxq->rx_free.
3696 * + In iwl4965_rx_replenish (scheduled) if 'processed' != 'read' then the
3697 * iwl->rxq is replenished and the READ INDEX is updated (updating the
3698 * 'processed' and 'read' driver indexes as well)
3699 * + A received packet is processed and handed to the kernel network stack,
3700 * detached from the iwl->rxq. The driver 'processed' index is updated.
3701 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
3702 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
3703 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
3704 * were enough free buffers and RX_STALLED is set it is cleared.
3709 * iwl4965_rx_queue_alloc() Allocates rx_free
3710 * iwl4965_rx_replenish() Replenishes rx_free list from rx_used, and calls
3711 * iwl4965_rx_queue_restock
3712 * iwl4965_rx_queue_restock() Moves available buffers from rx_free into Rx
3713 * queue, updates firmware pointers, and updates
3714 * the WRITE index. If insufficient rx_free buffers
3715 * are available, schedules iwl4965_rx_replenish
3717 * -- enable interrupts --
3718 * ISR - iwl4965_rx() Detach iwl4965_rx_mem_buffers from pool up to the
3719 * READ INDEX, detaching the SKB from the pool.
3720 * Moves the packet buffer from queue to rx_used.
3721 * Calls iwl4965_rx_queue_restock to refill any empty
3728 * iwl4965_rx_queue_space - Return number of free slots available in queue.
3730 static int iwl4965_rx_queue_space(const struct iwl4965_rx_queue
*q
)
3732 int s
= q
->read
- q
->write
;
3735 /* keep some buffer to not confuse full and empty queue */
3743 * iwl4965_rx_queue_update_write_ptr - Update the write pointer for the RX queue
3745 int iwl4965_rx_queue_update_write_ptr(struct iwl_priv
*priv
, struct iwl4965_rx_queue
*q
)
3749 unsigned long flags
;
3751 spin_lock_irqsave(&q
->lock
, flags
);
3753 if (q
->need_update
== 0)
3756 /* If power-saving is in use, make sure device is awake */
3757 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
3758 reg
= iwl4965_read32(priv
, CSR_UCODE_DRV_GP1
);
3760 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
3761 iwl4965_set_bit(priv
, CSR_GP_CNTRL
,
3762 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3766 rc
= iwl4965_grab_nic_access(priv
);
3770 /* Device expects a multiple of 8 */
3771 iwl4965_write_direct32(priv
, FH_RSCSR_CHNL0_WPTR
,
3773 iwl4965_release_nic_access(priv
);
3775 /* Else device is assumed to be awake */
3777 /* Device expects a multiple of 8 */
3778 iwl4965_write32(priv
, FH_RSCSR_CHNL0_WPTR
, q
->write
& ~0x7);
3784 spin_unlock_irqrestore(&q
->lock
, flags
);
3789 * iwl4965_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
3791 static inline __le32
iwl4965_dma_addr2rbd_ptr(struct iwl_priv
*priv
,
3792 dma_addr_t dma_addr
)
3794 return cpu_to_le32((u32
)(dma_addr
>> 8));
3799 * iwl4965_rx_queue_restock - refill RX queue from pre-allocated pool
3801 * If there are slots in the RX queue that need to be restocked,
3802 * and we have free pre-allocated buffers, fill the ranks as much
3803 * as we can, pulling from rx_free.
3805 * This moves the 'write' index forward to catch up with 'processed', and
3806 * also updates the memory address in the firmware to reference the new
3809 static int iwl4965_rx_queue_restock(struct iwl_priv
*priv
)
3811 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
3812 struct list_head
*element
;
3813 struct iwl4965_rx_mem_buffer
*rxb
;
3814 unsigned long flags
;
3817 spin_lock_irqsave(&rxq
->lock
, flags
);
3818 write
= rxq
->write
& ~0x7;
3819 while ((iwl4965_rx_queue_space(rxq
) > 0) && (rxq
->free_count
)) {
3820 /* Get next free Rx buffer, remove from free list */
3821 element
= rxq
->rx_free
.next
;
3822 rxb
= list_entry(element
, struct iwl4965_rx_mem_buffer
, list
);
3825 /* Point to Rx buffer via next RBD in circular buffer */
3826 rxq
->bd
[rxq
->write
] = iwl4965_dma_addr2rbd_ptr(priv
, rxb
->dma_addr
);
3827 rxq
->queue
[rxq
->write
] = rxb
;
3828 rxq
->write
= (rxq
->write
+ 1) & RX_QUEUE_MASK
;
3831 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3832 /* If the pre-allocated buffer pool is dropping low, schedule to
3834 if (rxq
->free_count
<= RX_LOW_WATERMARK
)
3835 queue_work(priv
->workqueue
, &priv
->rx_replenish
);
3838 /* If we've added more space for the firmware to place data, tell it.
3839 * Increment device's write pointer in multiples of 8. */
3840 if ((write
!= (rxq
->write
& ~0x7))
3841 || (abs(rxq
->write
- rxq
->read
) > 7)) {
3842 spin_lock_irqsave(&rxq
->lock
, flags
);
3843 rxq
->need_update
= 1;
3844 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3845 rc
= iwl4965_rx_queue_update_write_ptr(priv
, rxq
);
3854 * iwl4965_rx_replenish - Move all used packet from rx_used to rx_free
3856 * When moving to rx_free an SKB is allocated for the slot.
3858 * Also restock the Rx queue via iwl4965_rx_queue_restock.
3859 * This is called as a scheduled work item (except for during initialization)
3861 static void iwl4965_rx_allocate(struct iwl_priv
*priv
)
3863 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
3864 struct list_head
*element
;
3865 struct iwl4965_rx_mem_buffer
*rxb
;
3866 unsigned long flags
;
3867 spin_lock_irqsave(&rxq
->lock
, flags
);
3868 while (!list_empty(&rxq
->rx_used
)) {
3869 element
= rxq
->rx_used
.next
;
3870 rxb
= list_entry(element
, struct iwl4965_rx_mem_buffer
, list
);
3872 /* Alloc a new receive buffer */
3874 alloc_skb(priv
->hw_setting
.rx_buf_size
,
3875 __GFP_NOWARN
| GFP_ATOMIC
);
3877 if (net_ratelimit())
3878 printk(KERN_CRIT DRV_NAME
3879 ": Can not allocate SKB buffers\n");
3880 /* We don't reschedule replenish work here -- we will
3881 * call the restock method and if it still needs
3882 * more buffers it will schedule replenish */
3885 priv
->alloc_rxb_skb
++;
3888 /* Get physical address of RB/SKB */
3890 pci_map_single(priv
->pci_dev
, rxb
->skb
->data
,
3891 priv
->hw_setting
.rx_buf_size
, PCI_DMA_FROMDEVICE
);
3892 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
3895 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3899 * this should be called while priv->lock is locked
3901 static void __iwl4965_rx_replenish(void *data
)
3903 struct iwl_priv
*priv
= data
;
3905 iwl4965_rx_allocate(priv
);
3906 iwl4965_rx_queue_restock(priv
);
3910 void iwl4965_rx_replenish(void *data
)
3912 struct iwl_priv
*priv
= data
;
3913 unsigned long flags
;
3915 iwl4965_rx_allocate(priv
);
3917 spin_lock_irqsave(&priv
->lock
, flags
);
3918 iwl4965_rx_queue_restock(priv
);
3919 spin_unlock_irqrestore(&priv
->lock
, flags
);
3922 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
3923 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
3924 * This free routine walks the list of POOL entries and if SKB is set to
3925 * non NULL it is unmapped and freed
3927 static void iwl4965_rx_queue_free(struct iwl_priv
*priv
, struct iwl4965_rx_queue
*rxq
)
3930 for (i
= 0; i
< RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
; i
++) {
3931 if (rxq
->pool
[i
].skb
!= NULL
) {
3932 pci_unmap_single(priv
->pci_dev
,
3933 rxq
->pool
[i
].dma_addr
,
3934 priv
->hw_setting
.rx_buf_size
,
3935 PCI_DMA_FROMDEVICE
);
3936 dev_kfree_skb(rxq
->pool
[i
].skb
);
3940 pci_free_consistent(priv
->pci_dev
, 4 * RX_QUEUE_SIZE
, rxq
->bd
,
3945 int iwl4965_rx_queue_alloc(struct iwl_priv
*priv
)
3947 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
3948 struct pci_dev
*dev
= priv
->pci_dev
;
3951 spin_lock_init(&rxq
->lock
);
3952 INIT_LIST_HEAD(&rxq
->rx_free
);
3953 INIT_LIST_HEAD(&rxq
->rx_used
);
3955 /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
3956 rxq
->bd
= pci_alloc_consistent(dev
, 4 * RX_QUEUE_SIZE
, &rxq
->dma_addr
);
3960 /* Fill the rx_used queue with _all_ of the Rx buffers */
3961 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++)
3962 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3964 /* Set us so that we have processed and used all buffers, but have
3965 * not restocked the Rx queue with fresh buffers */
3966 rxq
->read
= rxq
->write
= 0;
3967 rxq
->free_count
= 0;
3968 rxq
->need_update
= 0;
3972 void iwl4965_rx_queue_reset(struct iwl_priv
*priv
, struct iwl4965_rx_queue
*rxq
)
3974 unsigned long flags
;
3976 spin_lock_irqsave(&rxq
->lock
, flags
);
3977 INIT_LIST_HEAD(&rxq
->rx_free
);
3978 INIT_LIST_HEAD(&rxq
->rx_used
);
3979 /* Fill the rx_used queue with _all_ of the Rx buffers */
3980 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++) {
3981 /* In the reset function, these buffers may have been allocated
3982 * to an SKB, so we need to unmap and free potential storage */
3983 if (rxq
->pool
[i
].skb
!= NULL
) {
3984 pci_unmap_single(priv
->pci_dev
,
3985 rxq
->pool
[i
].dma_addr
,
3986 priv
->hw_setting
.rx_buf_size
,
3987 PCI_DMA_FROMDEVICE
);
3988 priv
->alloc_rxb_skb
--;
3989 dev_kfree_skb(rxq
->pool
[i
].skb
);
3990 rxq
->pool
[i
].skb
= NULL
;
3992 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3995 /* Set us so that we have processed and used all buffers, but have
3996 * not restocked the Rx queue with fresh buffers */
3997 rxq
->read
= rxq
->write
= 0;
3998 rxq
->free_count
= 0;
3999 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4002 /* Convert linear signal-to-noise ratio into dB */
4003 static u8 ratio2dB
[100] = {
4004 /* 0 1 2 3 4 5 6 7 8 9 */
4005 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
4006 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
4007 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
4008 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
4009 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
4010 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
4011 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
4012 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
4013 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
4014 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
4017 /* Calculates a relative dB value from a ratio of linear
4018 * (i.e. not dB) signal levels.
4019 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
4020 int iwl4965_calc_db_from_ratio(int sig_ratio
)
4022 /* 1000:1 or higher just report as 60 dB */
4023 if (sig_ratio
>= 1000)
4026 /* 100:1 or higher, divide by 10 and use table,
4027 * add 20 dB to make up for divide by 10 */
4028 if (sig_ratio
>= 100)
4029 return (20 + (int)ratio2dB
[sig_ratio
/10]);
4031 /* We shouldn't see this */
4035 /* Use table for ratios 1:1 - 99:1 */
4036 return (int)ratio2dB
[sig_ratio
];
4039 #define PERFECT_RSSI (-20) /* dBm */
4040 #define WORST_RSSI (-95) /* dBm */
4041 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
4043 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
4044 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
4045 * about formulas used below. */
4046 int iwl4965_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
4049 int degradation
= PERFECT_RSSI
- rssi_dbm
;
4051 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
4052 * as indicator; formula is (signal dbm - noise dbm).
4053 * SNR at or above 40 is a great signal (100%).
4054 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
4055 * Weakest usable signal is usually 10 - 15 dB SNR. */
4057 if (rssi_dbm
- noise_dbm
>= 40)
4059 else if (rssi_dbm
< noise_dbm
)
4061 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
4063 /* Else use just the signal level.
4064 * This formula is a least squares fit of data points collected and
4065 * compared with a reference system that had a percentage (%) display
4066 * for signal quality. */
4068 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
4069 (15 * RSSI_RANGE
+ 62 * degradation
)) /
4070 (RSSI_RANGE
* RSSI_RANGE
);
4074 else if (sig_qual
< 1)
4081 * iwl4965_rx_handle - Main entry function for receiving responses from uCode
4083 * Uses the priv->rx_handlers callback function array to invoke
4084 * the appropriate handlers, including command responses,
4085 * frame-received notifications, and other notifications.
4087 static void iwl4965_rx_handle(struct iwl_priv
*priv
)
4089 struct iwl4965_rx_mem_buffer
*rxb
;
4090 struct iwl4965_rx_packet
*pkt
;
4091 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
4094 unsigned long flags
;
4098 /* uCode's read index (stored in shared DRAM) indicates the last Rx
4099 * buffer that the driver may process (last buffer filled by ucode). */
4100 r
= iwl4965_hw_get_rx_read(priv
);
4103 /* Rx interrupt, but nothing sent from uCode */
4105 IWL_DEBUG(IWL_DL_RX
| IWL_DL_ISR
, "r = %d, i = %d\n", r
, i
);
4107 if (iwl4965_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
4111 rxb
= rxq
->queue
[i
];
4113 /* If an RXB doesn't have a Rx queue slot associated with it,
4114 * then a bug has been introduced in the queue refilling
4115 * routines -- catch it here */
4116 BUG_ON(rxb
== NULL
);
4118 rxq
->queue
[i
] = NULL
;
4120 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
4121 priv
->hw_setting
.rx_buf_size
,
4122 PCI_DMA_FROMDEVICE
);
4123 pkt
= (struct iwl4965_rx_packet
*)rxb
->skb
->data
;
4125 /* Reclaim a command buffer only if this packet is a response
4126 * to a (driver-originated) command.
4127 * If the packet (e.g. Rx frame) originated from uCode,
4128 * there is no command buffer to reclaim.
4129 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
4130 * but apparently a few don't get set; catch them here. */
4131 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
4132 (pkt
->hdr
.cmd
!= REPLY_RX_PHY_CMD
) &&
4133 (pkt
->hdr
.cmd
!= REPLY_RX
) &&
4134 (pkt
->hdr
.cmd
!= REPLY_COMPRESSED_BA
) &&
4135 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
4136 (pkt
->hdr
.cmd
!= REPLY_TX
);
4138 /* Based on type of command response or notification,
4139 * handle those that need handling via function in
4140 * rx_handlers table. See iwl4965_setup_rx_handlers() */
4141 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
4142 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4143 "r = %d, i = %d, %s, 0x%02x\n", r
, i
,
4144 get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
4145 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
4147 /* No handling needed */
4148 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4149 "r %d i %d No handler needed for %s, 0x%02x\n",
4150 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
4155 /* Invoke any callbacks, transfer the skb to caller, and
4156 * fire off the (possibly) blocking iwl_send_cmd()
4157 * as we reclaim the driver command queue */
4158 if (rxb
&& rxb
->skb
)
4159 iwl4965_tx_cmd_complete(priv
, rxb
);
4161 IWL_WARNING("Claim null rxb?\n");
4164 /* For now we just don't re-use anything. We can tweak this
4165 * later to try and re-use notification packets and SKBs that
4166 * fail to Rx correctly */
4167 if (rxb
->skb
!= NULL
) {
4168 priv
->alloc_rxb_skb
--;
4169 dev_kfree_skb_any(rxb
->skb
);
4173 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
4174 priv
->hw_setting
.rx_buf_size
,
4175 PCI_DMA_FROMDEVICE
);
4176 spin_lock_irqsave(&rxq
->lock
, flags
);
4177 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
4178 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4179 i
= (i
+ 1) & RX_QUEUE_MASK
;
4180 /* If there are a lot of unused frames,
4181 * restock the Rx queue so ucode wont assert. */
4186 __iwl4965_rx_replenish(priv
);
4192 /* Backtrack one entry */
4194 iwl4965_rx_queue_restock(priv
);
4198 * iwl4965_tx_queue_update_write_ptr - Send new write index to hardware
4200 static int iwl4965_tx_queue_update_write_ptr(struct iwl_priv
*priv
,
4201 struct iwl4965_tx_queue
*txq
)
4205 int txq_id
= txq
->q
.id
;
4207 if (txq
->need_update
== 0)
4210 /* if we're trying to save power */
4211 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
4212 /* wake up nic if it's powered down ...
4213 * uCode will wake up, and interrupt us again, so next
4214 * time we'll skip this part. */
4215 reg
= iwl4965_read32(priv
, CSR_UCODE_DRV_GP1
);
4217 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
4218 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg
);
4219 iwl4965_set_bit(priv
, CSR_GP_CNTRL
,
4220 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
4224 /* restore this queue's parameters in nic hardware. */
4225 rc
= iwl4965_grab_nic_access(priv
);
4228 iwl4965_write_direct32(priv
, HBUS_TARG_WRPTR
,
4229 txq
->q
.write_ptr
| (txq_id
<< 8));
4230 iwl4965_release_nic_access(priv
);
4232 /* else not in power-save mode, uCode will never sleep when we're
4233 * trying to tx (during RFKILL, we're not trying to tx). */
4235 iwl4965_write32(priv
, HBUS_TARG_WRPTR
,
4236 txq
->q
.write_ptr
| (txq_id
<< 8));
4238 txq
->need_update
= 0;
4243 #ifdef CONFIG_IWLWIFI_DEBUG
4244 static void iwl4965_print_rx_config_cmd(struct iwl4965_rxon_cmd
*rxon
)
4246 DECLARE_MAC_BUF(mac
);
4248 IWL_DEBUG_RADIO("RX CONFIG:\n");
4249 iwl_print_hex_dump(IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
4250 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
4251 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
4252 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
4253 le32_to_cpu(rxon
->filter_flags
));
4254 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
4255 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
4256 rxon
->ofdm_basic_rates
);
4257 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
4258 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
4259 print_mac(mac
, rxon
->node_addr
));
4260 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
4261 print_mac(mac
, rxon
->bssid_addr
));
4262 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
4266 static void iwl4965_enable_interrupts(struct iwl_priv
*priv
)
4268 IWL_DEBUG_ISR("Enabling interrupts\n");
4269 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
4270 iwl4965_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
4273 static inline void iwl4965_disable_interrupts(struct iwl_priv
*priv
)
4275 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
4277 /* disable interrupts from uCode/NIC to host */
4278 iwl4965_write32(priv
, CSR_INT_MASK
, 0x00000000);
4280 /* acknowledge/clear/reset any interrupts still pending
4281 * from uCode or flow handler (Rx/Tx DMA) */
4282 iwl4965_write32(priv
, CSR_INT
, 0xffffffff);
4283 iwl4965_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
4284 IWL_DEBUG_ISR("Disabled interrupts\n");
4287 static const char *desc_lookup(int i
)
4295 return "BAD_CHECKSUM";
4297 return "NMI_INTERRUPT";
4301 return "FATAL_ERROR";
4307 #define ERROR_START_OFFSET (1 * sizeof(u32))
4308 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
4310 static void iwl4965_dump_nic_error_log(struct iwl_priv
*priv
)
4313 u32 desc
, time
, count
, base
, data1
;
4314 u32 blink1
, blink2
, ilink1
, ilink2
;
4317 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
4319 if (!iwl4965_hw_valid_rtc_data_addr(base
)) {
4320 IWL_ERROR("Not valid error log pointer 0x%08X\n", base
);
4324 rc
= iwl4965_grab_nic_access(priv
);
4326 IWL_WARNING("Can not read from adapter at this time.\n");
4330 count
= iwl4965_read_targ_mem(priv
, base
);
4332 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
4333 IWL_ERROR("Start IWL Error Log Dump:\n");
4334 IWL_ERROR("Status: 0x%08lX, count: %d\n", priv
->status
, count
);
4337 desc
= iwl4965_read_targ_mem(priv
, base
+ 1 * sizeof(u32
));
4338 blink1
= iwl4965_read_targ_mem(priv
, base
+ 3 * sizeof(u32
));
4339 blink2
= iwl4965_read_targ_mem(priv
, base
+ 4 * sizeof(u32
));
4340 ilink1
= iwl4965_read_targ_mem(priv
, base
+ 5 * sizeof(u32
));
4341 ilink2
= iwl4965_read_targ_mem(priv
, base
+ 6 * sizeof(u32
));
4342 data1
= iwl4965_read_targ_mem(priv
, base
+ 7 * sizeof(u32
));
4343 data2
= iwl4965_read_targ_mem(priv
, base
+ 8 * sizeof(u32
));
4344 line
= iwl4965_read_targ_mem(priv
, base
+ 9 * sizeof(u32
));
4345 time
= iwl4965_read_targ_mem(priv
, base
+ 11 * sizeof(u32
));
4347 IWL_ERROR("Desc Time "
4348 "data1 data2 line\n");
4349 IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n",
4350 desc_lookup(desc
), desc
, time
, data1
, data2
, line
);
4351 IWL_ERROR("blink1 blink2 ilink1 ilink2\n");
4352 IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1
, blink2
,
4355 iwl4965_release_nic_access(priv
);
4358 #define EVENT_START_OFFSET (4 * sizeof(u32))
4361 * iwl4965_print_event_log - Dump error event log to syslog
4363 * NOTE: Must be called with iwl4965_grab_nic_access() already obtained!
4365 static void iwl4965_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
4366 u32 num_events
, u32 mode
)
4369 u32 base
; /* SRAM byte address of event log header */
4370 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
4371 u32 ptr
; /* SRAM byte address of log data */
4372 u32 ev
, time
, data
; /* event log data */
4374 if (num_events
== 0)
4377 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4380 event_size
= 2 * sizeof(u32
);
4382 event_size
= 3 * sizeof(u32
);
4384 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
4386 /* "time" is actually "data" for mode 0 (no timestamp).
4387 * place event id # at far right for easier visual parsing. */
4388 for (i
= 0; i
< num_events
; i
++) {
4389 ev
= iwl4965_read_targ_mem(priv
, ptr
);
4391 time
= iwl4965_read_targ_mem(priv
, ptr
);
4394 IWL_ERROR("0x%08x\t%04u\n", time
, ev
); /* data, ev */
4396 data
= iwl4965_read_targ_mem(priv
, ptr
);
4398 IWL_ERROR("%010u\t0x%08x\t%04u\n", time
, data
, ev
);
4403 static void iwl4965_dump_nic_event_log(struct iwl_priv
*priv
)
4406 u32 base
; /* SRAM byte address of event log header */
4407 u32 capacity
; /* event log capacity in # entries */
4408 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
4409 u32 num_wraps
; /* # times uCode wrapped to top of log */
4410 u32 next_entry
; /* index of next entry to be written by uCode */
4411 u32 size
; /* # entries that we'll print */
4413 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4414 if (!iwl4965_hw_valid_rtc_data_addr(base
)) {
4415 IWL_ERROR("Invalid event log pointer 0x%08X\n", base
);
4419 rc
= iwl4965_grab_nic_access(priv
);
4421 IWL_WARNING("Can not read from adapter at this time.\n");
4425 /* event log header */
4426 capacity
= iwl4965_read_targ_mem(priv
, base
);
4427 mode
= iwl4965_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
4428 num_wraps
= iwl4965_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
4429 next_entry
= iwl4965_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
4431 size
= num_wraps
? capacity
: next_entry
;
4433 /* bail out if nothing in log */
4435 IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
4436 iwl4965_release_nic_access(priv
);
4440 IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
4443 /* if uCode has wrapped back to top of log, start at the oldest entry,
4444 * i.e the next one that uCode would fill. */
4446 iwl4965_print_event_log(priv
, next_entry
,
4447 capacity
- next_entry
, mode
);
4449 /* (then/else) start at top of log */
4450 iwl4965_print_event_log(priv
, 0, next_entry
, mode
);
4452 iwl4965_release_nic_access(priv
);
4456 * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
4458 static void iwl4965_irq_handle_error(struct iwl_priv
*priv
)
4460 /* Set the FW error flag -- cleared on iwl4965_down */
4461 set_bit(STATUS_FW_ERROR
, &priv
->status
);
4463 /* Cancel currently queued command. */
4464 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
4466 #ifdef CONFIG_IWLWIFI_DEBUG
4467 if (iwl_debug_level
& IWL_DL_FW_ERRORS
) {
4468 iwl4965_dump_nic_error_log(priv
);
4469 iwl4965_dump_nic_event_log(priv
);
4470 iwl4965_print_rx_config_cmd(&priv
->staging_rxon
);
4474 wake_up_interruptible(&priv
->wait_command_queue
);
4476 /* Keep the restart process from trying to send host
4477 * commands by clearing the INIT status bit */
4478 clear_bit(STATUS_READY
, &priv
->status
);
4480 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
4481 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_FW_ERRORS
,
4482 "Restarting adapter due to uCode error.\n");
4484 if (iwl4965_is_associated(priv
)) {
4485 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
4486 sizeof(priv
->recovery_rxon
));
4487 priv
->error_recovering
= 1;
4489 queue_work(priv
->workqueue
, &priv
->restart
);
4493 static void iwl4965_error_recovery(struct iwl_priv
*priv
)
4495 unsigned long flags
;
4497 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
4498 sizeof(priv
->staging_rxon
));
4499 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4500 iwl4965_commit_rxon(priv
);
4502 iwl4965_rxon_add_station(priv
, priv
->bssid
, 1);
4504 spin_lock_irqsave(&priv
->lock
, flags
);
4505 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
4506 priv
->error_recovering
= 0;
4507 spin_unlock_irqrestore(&priv
->lock
, flags
);
4510 static void iwl4965_irq_tasklet(struct iwl_priv
*priv
)
4512 u32 inta
, handled
= 0;
4514 unsigned long flags
;
4515 #ifdef CONFIG_IWLWIFI_DEBUG
4519 spin_lock_irqsave(&priv
->lock
, flags
);
4521 /* Ack/clear/reset pending uCode interrupts.
4522 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
4523 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
4524 inta
= iwl4965_read32(priv
, CSR_INT
);
4525 iwl4965_write32(priv
, CSR_INT
, inta
);
4527 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
4528 * Any new interrupts that happen after this, either while we're
4529 * in this tasklet, or later, will show up in next ISR/tasklet. */
4530 inta_fh
= iwl4965_read32(priv
, CSR_FH_INT_STATUS
);
4531 iwl4965_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
4533 #ifdef CONFIG_IWLWIFI_DEBUG
4534 if (iwl_debug_level
& IWL_DL_ISR
) {
4535 /* just for debug */
4536 inta_mask
= iwl4965_read32(priv
, CSR_INT_MASK
);
4537 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4538 inta
, inta_mask
, inta_fh
);
4542 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
4543 * atomic, make sure that inta covers all the interrupts that
4544 * we've discovered, even if FH interrupt came in just after
4545 * reading CSR_INT. */
4546 if (inta_fh
& CSR49_FH_INT_RX_MASK
)
4547 inta
|= CSR_INT_BIT_FH_RX
;
4548 if (inta_fh
& CSR49_FH_INT_TX_MASK
)
4549 inta
|= CSR_INT_BIT_FH_TX
;
4551 /* Now service all interrupt bits discovered above. */
4552 if (inta
& CSR_INT_BIT_HW_ERR
) {
4553 IWL_ERROR("Microcode HW error detected. Restarting.\n");
4555 /* Tell the device to stop sending interrupts */
4556 iwl4965_disable_interrupts(priv
);
4558 iwl4965_irq_handle_error(priv
);
4560 handled
|= CSR_INT_BIT_HW_ERR
;
4562 spin_unlock_irqrestore(&priv
->lock
, flags
);
4567 #ifdef CONFIG_IWLWIFI_DEBUG
4568 if (iwl_debug_level
& (IWL_DL_ISR
)) {
4569 /* NIC fires this, but we don't use it, redundant with WAKEUP */
4570 if (inta
& CSR_INT_BIT_SCD
)
4571 IWL_DEBUG_ISR("Scheduler finished to transmit "
4572 "the frame/frames.\n");
4574 /* Alive notification via Rx interrupt will do the real work */
4575 if (inta
& CSR_INT_BIT_ALIVE
)
4576 IWL_DEBUG_ISR("Alive interrupt\n");
4579 /* Safely ignore these bits for debug checks below */
4580 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
4582 /* HW RF KILL switch toggled */
4583 if (inta
& CSR_INT_BIT_RF_KILL
) {
4585 if (!(iwl4965_read32(priv
, CSR_GP_CNTRL
) &
4586 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
4589 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
| IWL_DL_ISR
,
4590 "RF_KILL bit toggled to %s.\n",
4591 hw_rf_kill
? "disable radio":"enable radio");
4593 /* Queue restart only if RF_KILL switch was set to "kill"
4594 * when we loaded driver, and is now set to "enable".
4595 * After we're Alive, RF_KILL gets handled by
4596 * iwl4965_rx_card_state_notif() */
4597 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
4598 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
4599 queue_work(priv
->workqueue
, &priv
->restart
);
4602 handled
|= CSR_INT_BIT_RF_KILL
;
4605 /* Chip got too hot and stopped itself */
4606 if (inta
& CSR_INT_BIT_CT_KILL
) {
4607 IWL_ERROR("Microcode CT kill error detected.\n");
4608 handled
|= CSR_INT_BIT_CT_KILL
;
4611 /* Error detected by uCode */
4612 if (inta
& CSR_INT_BIT_SW_ERR
) {
4613 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
4615 iwl4965_irq_handle_error(priv
);
4616 handled
|= CSR_INT_BIT_SW_ERR
;
4619 /* uCode wakes up after power-down sleep */
4620 if (inta
& CSR_INT_BIT_WAKEUP
) {
4621 IWL_DEBUG_ISR("Wakeup interrupt\n");
4622 iwl4965_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
4623 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[0]);
4624 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[1]);
4625 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[2]);
4626 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[3]);
4627 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[4]);
4628 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[5]);
4630 handled
|= CSR_INT_BIT_WAKEUP
;
4633 /* All uCode command responses, including Tx command responses,
4634 * Rx "responses" (frame-received notification), and other
4635 * notifications from uCode come through here*/
4636 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
4637 iwl4965_rx_handle(priv
);
4638 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
4641 if (inta
& CSR_INT_BIT_FH_TX
) {
4642 IWL_DEBUG_ISR("Tx interrupt\n");
4643 handled
|= CSR_INT_BIT_FH_TX
;
4646 if (inta
& ~handled
)
4647 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
4649 if (inta
& ~CSR_INI_SET_MASK
) {
4650 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
4651 inta
& ~CSR_INI_SET_MASK
);
4652 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
4655 /* Re-enable all interrupts */
4656 iwl4965_enable_interrupts(priv
);
4658 #ifdef CONFIG_IWLWIFI_DEBUG
4659 if (iwl_debug_level
& (IWL_DL_ISR
)) {
4660 inta
= iwl4965_read32(priv
, CSR_INT
);
4661 inta_mask
= iwl4965_read32(priv
, CSR_INT_MASK
);
4662 inta_fh
= iwl4965_read32(priv
, CSR_FH_INT_STATUS
);
4663 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
4664 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
4667 spin_unlock_irqrestore(&priv
->lock
, flags
);
4670 static irqreturn_t
iwl4965_isr(int irq
, void *data
)
4672 struct iwl_priv
*priv
= data
;
4673 u32 inta
, inta_mask
;
4678 spin_lock(&priv
->lock
);
4680 /* Disable (but don't clear!) interrupts here to avoid
4681 * back-to-back ISRs and sporadic interrupts from our NIC.
4682 * If we have something to service, the tasklet will re-enable ints.
4683 * If we *don't* have something, we'll re-enable before leaving here. */
4684 inta_mask
= iwl4965_read32(priv
, CSR_INT_MASK
); /* just for debug */
4685 iwl4965_write32(priv
, CSR_INT_MASK
, 0x00000000);
4687 /* Discover which interrupts are active/pending */
4688 inta
= iwl4965_read32(priv
, CSR_INT
);
4689 inta_fh
= iwl4965_read32(priv
, CSR_FH_INT_STATUS
);
4691 /* Ignore interrupt if there's nothing in NIC to service.
4692 * This may be due to IRQ shared with another device,
4693 * or due to sporadic interrupts thrown from our NIC. */
4694 if (!inta
&& !inta_fh
) {
4695 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
4699 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
4700 /* Hardware disappeared. It might have already raised
4702 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
4706 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4707 inta
, inta_mask
, inta_fh
);
4709 inta
&= ~CSR_INT_BIT_SCD
;
4711 /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
4712 if (likely(inta
|| inta_fh
))
4713 tasklet_schedule(&priv
->irq_tasklet
);
4716 spin_unlock(&priv
->lock
);
4720 /* re-enable interrupts here since we don't have anything to service. */
4721 iwl4965_enable_interrupts(priv
);
4722 spin_unlock(&priv
->lock
);
4726 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
4727 * sending probe req. This should be set long enough to hear probe responses
4728 * from more than one AP. */
4729 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
4730 #define IWL_ACTIVE_DWELL_TIME_52 (10)
4732 /* For faster active scanning, scan will move to the next channel if fewer than
4733 * PLCP_QUIET_THRESH packets are heard on this channel within
4734 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
4735 * time if it's a quiet channel (nothing responded to our probe, and there's
4736 * no other traffic).
4737 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
4738 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
4739 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
4741 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
4742 * Must be set longer than active dwell time.
4743 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
4744 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
4745 #define IWL_PASSIVE_DWELL_TIME_52 (10)
4746 #define IWL_PASSIVE_DWELL_BASE (100)
4747 #define IWL_CHANNEL_TUNE_TIME 5
4749 static inline u16
iwl4965_get_active_dwell_time(struct iwl_priv
*priv
,
4750 enum ieee80211_band band
)
4752 if (band
== IEEE80211_BAND_5GHZ
)
4753 return IWL_ACTIVE_DWELL_TIME_52
;
4755 return IWL_ACTIVE_DWELL_TIME_24
;
4758 static u16
iwl4965_get_passive_dwell_time(struct iwl_priv
*priv
,
4759 enum ieee80211_band band
)
4761 u16 active
= iwl4965_get_active_dwell_time(priv
, band
);
4762 u16 passive
= (band
!= IEEE80211_BAND_5GHZ
) ?
4763 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
4764 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
4766 if (iwl4965_is_associated(priv
)) {
4767 /* If we're associated, we clamp the maximum passive
4768 * dwell time to be 98% of the beacon interval (minus
4769 * 2 * channel tune time) */
4770 passive
= priv
->beacon_int
;
4771 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
4772 passive
= IWL_PASSIVE_DWELL_BASE
;
4773 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
4776 if (passive
<= active
)
4777 passive
= active
+ 1;
4782 static int iwl4965_get_channels_for_scan(struct iwl_priv
*priv
,
4783 enum ieee80211_band band
,
4784 u8 is_active
, u8 direct_mask
,
4785 struct iwl4965_scan_channel
*scan_ch
)
4787 const struct ieee80211_channel
*channels
= NULL
;
4788 const struct ieee80211_supported_band
*sband
;
4789 const struct iwl_channel_info
*ch_info
;
4790 u16 passive_dwell
= 0;
4791 u16 active_dwell
= 0;
4794 sband
= iwl4965_get_hw_mode(priv
, band
);
4798 channels
= sband
->channels
;
4800 active_dwell
= iwl4965_get_active_dwell_time(priv
, band
);
4801 passive_dwell
= iwl4965_get_passive_dwell_time(priv
, band
);
4803 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
4804 if (ieee80211_frequency_to_channel(channels
[i
].center_freq
) ==
4805 le16_to_cpu(priv
->active_rxon
.channel
)) {
4806 if (iwl4965_is_associated(priv
)) {
4808 ("Skipping current channel %d\n",
4809 le16_to_cpu(priv
->active_rxon
.channel
));
4812 } else if (priv
->only_active_channel
)
4815 scan_ch
->channel
= ieee80211_frequency_to_channel(channels
[i
].center_freq
);
4817 ch_info
= iwl_get_channel_info(priv
, band
,
4819 if (!is_channel_valid(ch_info
)) {
4820 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
4825 if (!is_active
|| is_channel_passive(ch_info
) ||
4826 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
))
4827 scan_ch
->type
= 0; /* passive */
4829 scan_ch
->type
= 1; /* active */
4831 if (scan_ch
->type
& 1)
4832 scan_ch
->type
|= (direct_mask
<< 1);
4834 if (is_channel_narrow(ch_info
))
4835 scan_ch
->type
|= (1 << 7);
4837 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
4838 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
4840 /* Set txpower levels to defaults */
4841 scan_ch
->tpc
.dsp_atten
= 110;
4842 /* scan_pwr_info->tpc.dsp_atten; */
4844 /*scan_pwr_info->tpc.tx_gain; */
4845 if (band
== IEEE80211_BAND_5GHZ
)
4846 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
4848 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
4849 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
4851 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
4855 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
4857 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
4858 (scan_ch
->type
& 1) ?
4859 active_dwell
: passive_dwell
);
4865 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
4869 static void iwl4965_init_hw_rates(struct iwl_priv
*priv
,
4870 struct ieee80211_rate
*rates
)
4874 for (i
= 0; i
< IWL_RATE_COUNT
; i
++) {
4875 rates
[i
].bitrate
= iwl4965_rates
[i
].ieee
* 5;
4876 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
4877 rates
[i
].hw_value_short
= i
;
4879 if ((i
> IWL_LAST_OFDM_RATE
) || (i
< IWL_FIRST_OFDM_RATE
)) {
4881 * If CCK != 1M then set short preamble rate flag.
4884 (iwl4965_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
4885 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
4891 * iwl4965_init_geos - Initialize mac80211's geo/channel info based from eeprom
4893 int iwl4965_init_geos(struct iwl_priv
*priv
)
4895 struct iwl_channel_info
*ch
;
4896 struct ieee80211_supported_band
*sband
;
4897 struct ieee80211_channel
*channels
;
4898 struct ieee80211_channel
*geo_ch
;
4899 struct ieee80211_rate
*rates
;
4902 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
4903 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
4904 IWL_DEBUG_INFO("Geography modes already initialized.\n");
4905 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
4909 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
4910 priv
->channel_count
, GFP_KERNEL
);
4914 rates
= kzalloc((sizeof(struct ieee80211_rate
) * (IWL_RATE_COUNT
+ 1)),
4921 /* 5.2GHz channels start after the 2.4GHz channels */
4922 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
4923 sband
->channels
= &channels
[ARRAY_SIZE(iwl_eeprom_band_1
)];
4925 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
4926 sband
->n_bitrates
= IWL_RATE_COUNT
- IWL_FIRST_OFDM_RATE
;
4928 iwl4965_init_ht_hw_capab(priv
, &sband
->ht_info
, IEEE80211_BAND_5GHZ
);
4930 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
4931 sband
->channels
= channels
;
4933 sband
->bitrates
= rates
;
4934 sband
->n_bitrates
= IWL_RATE_COUNT
;
4936 iwl4965_init_ht_hw_capab(priv
, &sband
->ht_info
, IEEE80211_BAND_2GHZ
);
4938 priv
->ieee_channels
= channels
;
4939 priv
->ieee_rates
= rates
;
4941 iwl4965_init_hw_rates(priv
, rates
);
4943 for (i
= 0; i
< priv
->channel_count
; i
++) {
4944 ch
= &priv
->channel_info
[i
];
4946 /* FIXME: might be removed if scan is OK */
4947 if (!is_channel_valid(ch
))
4950 if (is_channel_a_band(ch
))
4951 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
4953 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
4955 geo_ch
= &sband
->channels
[sband
->n_channels
++];
4957 geo_ch
->center_freq
= ieee80211_channel_to_frequency(ch
->channel
);
4958 geo_ch
->max_power
= ch
->max_power_avg
;
4959 geo_ch
->max_antenna_gain
= 0xff;
4960 geo_ch
->hw_value
= ch
->channel
;
4962 if (is_channel_valid(ch
)) {
4963 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
4964 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
4966 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
4967 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
4969 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
4970 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
4972 if (ch
->max_power_avg
> priv
->max_channel_txpower_limit
)
4973 priv
->max_channel_txpower_limit
=
4976 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
4979 /* Save flags for reg domain usage */
4980 geo_ch
->orig_flags
= geo_ch
->flags
;
4982 IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n",
4983 ch
->channel
, geo_ch
->center_freq
,
4984 is_channel_a_band(ch
) ? "5.2" : "2.4",
4985 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
4986 "restricted" : "valid",
4990 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) &&
4991 priv
->cfg
->sku
& IWL_SKU_A
) {
4992 printk(KERN_INFO DRV_NAME
4993 ": Incorrectly detected BG card as ABG. Please send "
4994 "your PCI ID 0x%04X:0x%04X to maintainer.\n",
4995 priv
->pci_dev
->device
, priv
->pci_dev
->subsystem_device
);
4996 priv
->cfg
->sku
&= ~IWL_SKU_A
;
4999 printk(KERN_INFO DRV_NAME
5000 ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
5001 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
5002 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
5004 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &priv
->bands
[IEEE80211_BAND_2GHZ
];
5005 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] = &priv
->bands
[IEEE80211_BAND_5GHZ
];
5007 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5013 * iwl4965_free_geos - undo allocations in iwl4965_init_geos
5015 void iwl4965_free_geos(struct iwl_priv
*priv
)
5017 kfree(priv
->ieee_channels
);
5018 kfree(priv
->ieee_rates
);
5019 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5022 /******************************************************************************
5024 * uCode download functions
5026 ******************************************************************************/
5028 static void iwl4965_dealloc_ucode_pci(struct iwl_priv
*priv
)
5030 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5031 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5032 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5033 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5034 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5035 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5039 * iwl4965_verify_inst_full - verify runtime uCode image in card vs. host,
5040 * looking at all data.
5042 static int iwl4965_verify_inst_full(struct iwl_priv
*priv
, __le32
*image
,
5050 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5052 rc
= iwl4965_grab_nic_access(priv
);
5056 iwl4965_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, RTC_INST_LOWER_BOUND
);
5059 for (; len
> 0; len
-= sizeof(u32
), image
++) {
5060 /* read data comes through single port, auto-incr addr */
5061 /* NOTE: Use the debugless read so we don't flood kernel log
5062 * if IWL_DL_IO is set */
5063 val
= _iwl4965_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5064 if (val
!= le32_to_cpu(*image
)) {
5065 IWL_ERROR("uCode INST section is invalid at "
5066 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5067 save_len
- len
, val
, le32_to_cpu(*image
));
5075 iwl4965_release_nic_access(priv
);
5079 ("ucode image in INSTRUCTION memory is good\n");
5086 * iwl4965_verify_inst_sparse - verify runtime uCode image in card vs. host,
5087 * using sample data 100 bytes apart. If these sample points are good,
5088 * it's a pretty good bet that everything between them is good, too.
5090 static int iwl4965_verify_inst_sparse(struct iwl_priv
*priv
, __le32
*image
, u32 len
)
5097 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5099 rc
= iwl4965_grab_nic_access(priv
);
5103 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
5104 /* read data comes through single port, auto-incr addr */
5105 /* NOTE: Use the debugless read so we don't flood kernel log
5106 * if IWL_DL_IO is set */
5107 iwl4965_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
5108 i
+ RTC_INST_LOWER_BOUND
);
5109 val
= _iwl4965_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5110 if (val
!= le32_to_cpu(*image
)) {
5111 #if 0 /* Enable this if you want to see details */
5112 IWL_ERROR("uCode INST section is invalid at "
5113 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5123 iwl4965_release_nic_access(priv
);
5130 * iwl4965_verify_ucode - determine which instruction image is in SRAM,
5131 * and verify its contents
5133 static int iwl4965_verify_ucode(struct iwl_priv
*priv
)
5140 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5141 len
= priv
->ucode_boot
.len
;
5142 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5144 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
5148 /* Try initialize */
5149 image
= (__le32
*)priv
->ucode_init
.v_addr
;
5150 len
= priv
->ucode_init
.len
;
5151 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5153 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
5157 /* Try runtime/protocol */
5158 image
= (__le32
*)priv
->ucode_code
.v_addr
;
5159 len
= priv
->ucode_code
.len
;
5160 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5162 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
5166 IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
5168 /* Since nothing seems to match, show first several data entries in
5169 * instruction SRAM, so maybe visual inspection will give a clue.
5170 * Selection of bootstrap image (vs. other images) is arbitrary. */
5171 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5172 len
= priv
->ucode_boot
.len
;
5173 rc
= iwl4965_verify_inst_full(priv
, image
, len
);
5179 /* check contents of special bootstrap uCode SRAM */
5180 static int iwl4965_verify_bsm(struct iwl_priv
*priv
)
5182 __le32
*image
= priv
->ucode_boot
.v_addr
;
5183 u32 len
= priv
->ucode_boot
.len
;
5187 IWL_DEBUG_INFO("Begin verify bsm\n");
5189 /* verify BSM SRAM contents */
5190 val
= iwl4965_read_prph(priv
, BSM_WR_DWCOUNT_REG
);
5191 for (reg
= BSM_SRAM_LOWER_BOUND
;
5192 reg
< BSM_SRAM_LOWER_BOUND
+ len
;
5193 reg
+= sizeof(u32
), image
++) {
5194 val
= iwl4965_read_prph(priv
, reg
);
5195 if (val
!= le32_to_cpu(*image
)) {
5196 IWL_ERROR("BSM uCode verification failed at "
5197 "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
5198 BSM_SRAM_LOWER_BOUND
,
5199 reg
- BSM_SRAM_LOWER_BOUND
, len
,
5200 val
, le32_to_cpu(*image
));
5205 IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
5211 * iwl4965_load_bsm - Load bootstrap instructions
5215 * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
5216 * in special SRAM that does not power down during RFKILL. When powering back
5217 * up after power-saving sleeps (or during initial uCode load), the BSM loads
5218 * the bootstrap program into the on-board processor, and starts it.
5220 * The bootstrap program loads (via DMA) instructions and data for a new
5221 * program from host DRAM locations indicated by the host driver in the
5222 * BSM_DRAM_* registers. Once the new program is loaded, it starts
5225 * When initializing the NIC, the host driver points the BSM to the
5226 * "initialize" uCode image. This uCode sets up some internal data, then
5227 * notifies host via "initialize alive" that it is complete.
5229 * The host then replaces the BSM_DRAM_* pointer values to point to the
5230 * normal runtime uCode instructions and a backup uCode data cache buffer
5231 * (filled initially with starting data values for the on-board processor),
5232 * then triggers the "initialize" uCode to load and launch the runtime uCode,
5233 * which begins normal operation.
5235 * When doing a power-save shutdown, runtime uCode saves data SRAM into
5236 * the backup data cache in DRAM before SRAM is powered down.
5238 * When powering back up, the BSM loads the bootstrap program. This reloads
5239 * the runtime uCode instructions and the backup data cache into SRAM,
5240 * and re-launches the runtime uCode from where it left off.
5242 static int iwl4965_load_bsm(struct iwl_priv
*priv
)
5244 __le32
*image
= priv
->ucode_boot
.v_addr
;
5245 u32 len
= priv
->ucode_boot
.len
;
5255 IWL_DEBUG_INFO("Begin load bsm\n");
5257 /* make sure bootstrap program is no larger than BSM's SRAM size */
5258 if (len
> IWL_MAX_BSM_SIZE
)
5261 /* Tell bootstrap uCode where to find the "Initialize" uCode
5262 * in host DRAM ... host DRAM physical address bits 35:4 for 4965.
5263 * NOTE: iwl4965_initialize_alive_start() will replace these values,
5264 * after the "initialize" uCode has run, to point to
5265 * runtime/protocol instructions and backup data cache. */
5266 pinst
= priv
->ucode_init
.p_addr
>> 4;
5267 pdata
= priv
->ucode_init_data
.p_addr
>> 4;
5268 inst_len
= priv
->ucode_init
.len
;
5269 data_len
= priv
->ucode_init_data
.len
;
5271 rc
= iwl4965_grab_nic_access(priv
);
5275 iwl4965_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5276 iwl4965_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5277 iwl4965_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
, inst_len
);
5278 iwl4965_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
, data_len
);
5280 /* Fill BSM memory with bootstrap instructions */
5281 for (reg_offset
= BSM_SRAM_LOWER_BOUND
;
5282 reg_offset
< BSM_SRAM_LOWER_BOUND
+ len
;
5283 reg_offset
+= sizeof(u32
), image
++)
5284 _iwl4965_write_prph(priv
, reg_offset
,
5285 le32_to_cpu(*image
));
5287 rc
= iwl4965_verify_bsm(priv
);
5289 iwl4965_release_nic_access(priv
);
5293 /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
5294 iwl4965_write_prph(priv
, BSM_WR_MEM_SRC_REG
, 0x0);
5295 iwl4965_write_prph(priv
, BSM_WR_MEM_DST_REG
,
5296 RTC_INST_LOWER_BOUND
);
5297 iwl4965_write_prph(priv
, BSM_WR_DWCOUNT_REG
, len
/ sizeof(u32
));
5299 /* Load bootstrap code into instruction SRAM now,
5300 * to prepare to load "initialize" uCode */
5301 iwl4965_write_prph(priv
, BSM_WR_CTRL_REG
,
5302 BSM_WR_CTRL_REG_BIT_START
);
5304 /* Wait for load of bootstrap uCode to finish */
5305 for (i
= 0; i
< 100; i
++) {
5306 done
= iwl4965_read_prph(priv
, BSM_WR_CTRL_REG
);
5307 if (!(done
& BSM_WR_CTRL_REG_BIT_START
))
5312 IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i
);
5314 IWL_ERROR("BSM write did not complete!\n");
5318 /* Enable future boot loads whenever power management unit triggers it
5319 * (e.g. when powering back up after power-save shutdown) */
5320 iwl4965_write_prph(priv
, BSM_WR_CTRL_REG
,
5321 BSM_WR_CTRL_REG_BIT_START_EN
);
5323 iwl4965_release_nic_access(priv
);
5328 static void iwl4965_nic_start(struct iwl_priv
*priv
)
5330 /* Remove all resets to allow NIC to operate */
5331 iwl4965_write32(priv
, CSR_RESET
, 0);
5336 * iwl4965_read_ucode - Read uCode images from disk file.
5338 * Copy into buffers for card to fetch via bus-mastering
5340 static int iwl4965_read_ucode(struct iwl_priv
*priv
)
5342 struct iwl4965_ucode
*ucode
;
5344 const struct firmware
*ucode_raw
;
5345 const char *name
= priv
->cfg
->fw_name
;
5348 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
5350 /* Ask kernel firmware_class module to get the boot firmware off disk.
5351 * request_firmware() is synchronous, file is in memory on return. */
5352 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
5354 IWL_ERROR("%s firmware file req failed: Reason %d\n",
5359 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
5360 name
, ucode_raw
->size
);
5362 /* Make sure that we got at least our header! */
5363 if (ucode_raw
->size
< sizeof(*ucode
)) {
5364 IWL_ERROR("File size way too small!\n");
5369 /* Data from ucode file: header followed by uCode images */
5370 ucode
= (void *)ucode_raw
->data
;
5372 ver
= le32_to_cpu(ucode
->ver
);
5373 inst_size
= le32_to_cpu(ucode
->inst_size
);
5374 data_size
= le32_to_cpu(ucode
->data_size
);
5375 init_size
= le32_to_cpu(ucode
->init_size
);
5376 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
5377 boot_size
= le32_to_cpu(ucode
->boot_size
);
5379 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
5380 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
5382 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
5384 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
5386 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
5388 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
5391 /* Verify size of file vs. image size info in file's header */
5392 if (ucode_raw
->size
< sizeof(*ucode
) +
5393 inst_size
+ data_size
+ init_size
+
5394 init_data_size
+ boot_size
) {
5396 IWL_DEBUG_INFO("uCode file size %d too small\n",
5397 (int)ucode_raw
->size
);
5402 /* Verify that uCode images will fit in card's SRAM */
5403 if (inst_size
> IWL_MAX_INST_SIZE
) {
5404 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
5410 if (data_size
> IWL_MAX_DATA_SIZE
) {
5411 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
5416 if (init_size
> IWL_MAX_INST_SIZE
) {
5418 ("uCode init instr len %d too large to fit in\n",
5423 if (init_data_size
> IWL_MAX_DATA_SIZE
) {
5425 ("uCode init data len %d too large to fit in\n",
5430 if (boot_size
> IWL_MAX_BSM_SIZE
) {
5432 ("uCode boot instr len %d too large to fit in\n",
5438 /* Allocate ucode buffers for card's bus-master loading ... */
5440 /* Runtime instructions and 2 copies of data:
5441 * 1) unmodified from disk
5442 * 2) backup cache for save/restore during power-downs */
5443 priv
->ucode_code
.len
= inst_size
;
5444 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5446 priv
->ucode_data
.len
= data_size
;
5447 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5449 priv
->ucode_data_backup
.len
= data_size
;
5450 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5452 /* Initialization instructions and data */
5453 if (init_size
&& init_data_size
) {
5454 priv
->ucode_init
.len
= init_size
;
5455 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5457 priv
->ucode_init_data
.len
= init_data_size
;
5458 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5460 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
5464 /* Bootstrap (instructions only, no data) */
5466 priv
->ucode_boot
.len
= boot_size
;
5467 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5469 if (!priv
->ucode_boot
.v_addr
)
5473 /* Copy images into buffers for card's bus-master reads ... */
5475 /* Runtime instructions (first block of data in file) */
5476 src
= &ucode
->data
[0];
5477 len
= priv
->ucode_code
.len
;
5478 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
5479 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
5480 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
5481 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
5483 /* Runtime data (2nd block)
5484 * NOTE: Copy into backup buffer will be done in iwl4965_up() */
5485 src
= &ucode
->data
[inst_size
];
5486 len
= priv
->ucode_data
.len
;
5487 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
5488 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
5489 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
5491 /* Initialization instructions (3rd block) */
5493 src
= &ucode
->data
[inst_size
+ data_size
];
5494 len
= priv
->ucode_init
.len
;
5495 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
5497 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
5500 /* Initialization data (4th block) */
5501 if (init_data_size
) {
5502 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
5503 len
= priv
->ucode_init_data
.len
;
5504 IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
5506 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
5509 /* Bootstrap instructions (5th block) */
5510 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
5511 len
= priv
->ucode_boot
.len
;
5512 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len
);
5513 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
5515 /* We have our copies now, allow OS release its copies */
5516 release_firmware(ucode_raw
);
5520 IWL_ERROR("failed to allocate pci memory\n");
5522 iwl4965_dealloc_ucode_pci(priv
);
5525 release_firmware(ucode_raw
);
5533 * iwl4965_set_ucode_ptrs - Set uCode address location
5535 * Tell initialization uCode where to find runtime uCode.
5537 * BSM registers initially contain pointers to initialization uCode.
5538 * We need to replace them to load runtime uCode inst and data,
5539 * and to save runtime data when powering down.
5541 static int iwl4965_set_ucode_ptrs(struct iwl_priv
*priv
)
5546 unsigned long flags
;
5548 /* bits 35:4 for 4965 */
5549 pinst
= priv
->ucode_code
.p_addr
>> 4;
5550 pdata
= priv
->ucode_data_backup
.p_addr
>> 4;
5552 spin_lock_irqsave(&priv
->lock
, flags
);
5553 rc
= iwl4965_grab_nic_access(priv
);
5555 spin_unlock_irqrestore(&priv
->lock
, flags
);
5559 /* Tell bootstrap uCode where to find image to load */
5560 iwl4965_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5561 iwl4965_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5562 iwl4965_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
,
5563 priv
->ucode_data
.len
);
5565 /* Inst bytecount must be last to set up, bit 31 signals uCode
5566 * that all new ptr/size info is in place */
5567 iwl4965_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
,
5568 priv
->ucode_code
.len
| BSM_DRAM_INST_LOAD
);
5570 iwl4965_release_nic_access(priv
);
5572 spin_unlock_irqrestore(&priv
->lock
, flags
);
5574 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
5580 * iwl4965_init_alive_start - Called after REPLY_ALIVE notification received
5582 * Called after REPLY_ALIVE notification received from "initialize" uCode.
5584 * The 4965 "initialize" ALIVE reply contains calibration data for:
5585 * Voltage, temperature, and MIMO tx gain correction, now stored in priv
5586 * (3945 does not contain this data).
5588 * Tell "initialize" uCode to go ahead and load the runtime uCode.
5590 static void iwl4965_init_alive_start(struct iwl_priv
*priv
)
5592 /* Check alive response for "valid" sign from uCode */
5593 if (priv
->card_alive_init
.is_valid
!= UCODE_VALID_OK
) {
5594 /* We had an error bringing up the hardware, so take it
5595 * all the way back down so we can try again */
5596 IWL_DEBUG_INFO("Initialize Alive failed.\n");
5600 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
5601 * This is a paranoid check, because we would not have gotten the
5602 * "initialize" alive if code weren't properly loaded. */
5603 if (iwl4965_verify_ucode(priv
)) {
5604 /* Runtime instruction load was bad;
5605 * take it all the way back down so we can try again */
5606 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
5610 /* Calculate temperature */
5611 priv
->temperature
= iwl4965_get_temperature(priv
);
5613 /* Send pointers to protocol/runtime uCode image ... init code will
5614 * load and launch runtime uCode, which will send us another "Alive"
5616 IWL_DEBUG_INFO("Initialization Alive received.\n");
5617 if (iwl4965_set_ucode_ptrs(priv
)) {
5618 /* Runtime instruction load won't happen;
5619 * take it all the way back down so we can try again */
5620 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
5626 queue_work(priv
->workqueue
, &priv
->restart
);
5631 * iwl4965_alive_start - called after REPLY_ALIVE notification received
5632 * from protocol/runtime uCode (initialization uCode's
5633 * Alive gets handled by iwl4965_init_alive_start()).
5635 static void iwl4965_alive_start(struct iwl_priv
*priv
)
5639 IWL_DEBUG_INFO("Runtime Alive received.\n");
5641 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
5642 /* We had an error bringing up the hardware, so take it
5643 * all the way back down so we can try again */
5644 IWL_DEBUG_INFO("Alive failed.\n");
5648 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
5649 * This is a paranoid check, because we would not have gotten the
5650 * "runtime" alive if code weren't properly loaded. */
5651 if (iwl4965_verify_ucode(priv
)) {
5652 /* Runtime instruction load was bad;
5653 * take it all the way back down so we can try again */
5654 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
5658 iwlcore_clear_stations_table(priv
);
5660 rc
= iwl4965_alive_notify(priv
);
5662 IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
5667 /* After the ALIVE response, we can send host commands to 4965 uCode */
5668 set_bit(STATUS_ALIVE
, &priv
->status
);
5670 /* Clear out the uCode error bit if it is set */
5671 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
5673 if (iwl4965_is_rfkill(priv
))
5676 ieee80211_start_queues(priv
->hw
);
5678 priv
->active_rate
= priv
->rates_mask
;
5679 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
5681 iwl4965_send_power_mode(priv
, IWL_POWER_LEVEL(priv
->power_mode
));
5683 if (iwl4965_is_associated(priv
)) {
5684 struct iwl4965_rxon_cmd
*active_rxon
=
5685 (struct iwl4965_rxon_cmd
*)(&priv
->active_rxon
);
5687 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
5688 sizeof(priv
->staging_rxon
));
5689 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5691 /* Initialize our rx_config data */
5692 iwl4965_connection_init_rx_config(priv
);
5693 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
5696 /* Configure Bluetooth device coexistence support */
5697 iwl4965_send_bt_config(priv
);
5699 /* Configure the adapter for unassociated operation */
5700 iwl4965_commit_rxon(priv
);
5702 /* At this point, the NIC is initialized and operational */
5703 priv
->notif_missed_beacons
= 0;
5704 set_bit(STATUS_READY
, &priv
->status
);
5706 iwl4965_rf_kill_ct_config(priv
);
5708 IWL_DEBUG_INFO("ALIVE processing complete.\n");
5709 wake_up_interruptible(&priv
->wait_command_queue
);
5711 if (priv
->error_recovering
)
5712 iwl4965_error_recovery(priv
);
5717 queue_work(priv
->workqueue
, &priv
->restart
);
5720 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
);
5722 static void __iwl4965_down(struct iwl_priv
*priv
)
5724 unsigned long flags
;
5725 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5726 struct ieee80211_conf
*conf
= NULL
;
5728 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
5730 conf
= ieee80211_get_hw_conf(priv
->hw
);
5733 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5735 iwlcore_clear_stations_table(priv
);
5737 /* Unblock any waiting calls */
5738 wake_up_interruptible_all(&priv
->wait_command_queue
);
5740 /* Wipe out the EXIT_PENDING status bit if we are not actually
5741 * exiting the module */
5743 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5745 /* stop and reset the on-board processor */
5746 iwl4965_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
5748 /* tell the device to stop sending interrupts */
5749 iwl4965_disable_interrupts(priv
);
5751 if (priv
->mac80211_registered
)
5752 ieee80211_stop_queues(priv
->hw
);
5754 /* If we have not previously called iwl4965_init() then
5755 * clear all bits but the RF Kill and SUSPEND bits and return */
5756 if (!iwl4965_is_init(priv
)) {
5757 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5759 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5761 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5762 STATUS_GEO_CONFIGURED
|
5763 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5768 /* ...otherwise clear out all the status bits but the RF Kill and
5769 * SUSPEND bits and continue taking the NIC down. */
5770 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5772 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5774 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5775 STATUS_GEO_CONFIGURED
|
5776 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5778 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
5781 spin_lock_irqsave(&priv
->lock
, flags
);
5782 iwl4965_clear_bit(priv
, CSR_GP_CNTRL
,
5783 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
5784 spin_unlock_irqrestore(&priv
->lock
, flags
);
5786 iwl4965_hw_txq_ctx_stop(priv
);
5787 iwl4965_hw_rxq_stop(priv
);
5789 spin_lock_irqsave(&priv
->lock
, flags
);
5790 if (!iwl4965_grab_nic_access(priv
)) {
5791 iwl4965_write_prph(priv
, APMG_CLK_DIS_REG
,
5792 APMG_CLK_VAL_DMA_CLK_RQT
);
5793 iwl4965_release_nic_access(priv
);
5795 spin_unlock_irqrestore(&priv
->lock
, flags
);
5799 iwl4965_hw_nic_stop_master(priv
);
5800 iwl4965_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
5801 iwl4965_hw_nic_reset(priv
);
5804 memset(&priv
->card_alive
, 0, sizeof(struct iwl4965_alive_resp
));
5806 if (priv
->ibss_beacon
)
5807 dev_kfree_skb(priv
->ibss_beacon
);
5808 priv
->ibss_beacon
= NULL
;
5810 /* clear out any free frames */
5811 iwl4965_clear_free_frames(priv
);
5814 static void iwl4965_down(struct iwl_priv
*priv
)
5816 mutex_lock(&priv
->mutex
);
5817 __iwl4965_down(priv
);
5818 mutex_unlock(&priv
->mutex
);
5820 iwl4965_cancel_deferred_work(priv
);
5823 #define MAX_HW_RESTARTS 5
5825 static int __iwl4965_up(struct iwl_priv
*priv
)
5829 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
5830 IWL_WARNING("Exit pending; will not bring the NIC up\n");
5834 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
5835 IWL_WARNING("Radio disabled by SW RF kill (module "
5840 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
5841 IWL_ERROR("ucode not available for device bringup\n");
5845 /* If platform's RF_KILL switch is NOT set to KILL */
5846 if (iwl4965_read32(priv
, CSR_GP_CNTRL
) &
5847 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
5848 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5850 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5851 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
5852 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
5857 iwl4965_write32(priv
, CSR_INT
, 0xFFFFFFFF);
5859 rc
= iwl4965_hw_nic_init(priv
);
5861 IWL_ERROR("Unable to int nic\n");
5865 /* make sure rfkill handshake bits are cleared */
5866 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5867 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
5868 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
5870 /* clear (again), then enable host interrupts */
5871 iwl4965_write32(priv
, CSR_INT
, 0xFFFFFFFF);
5872 iwl4965_enable_interrupts(priv
);
5874 /* really make sure rfkill handshake bits are cleared */
5875 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5876 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5878 /* Copy original ucode data image from disk into backup cache.
5879 * This will be used to initialize the on-board processor's
5880 * data SRAM for a clean start when the runtime program first loads. */
5881 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
5882 priv
->ucode_data
.len
);
5884 /* We return success when we resume from suspend and rf_kill is on. */
5885 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
5888 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
5890 iwlcore_clear_stations_table(priv
);
5892 /* load bootstrap state machine,
5893 * load bootstrap program into processor's memory,
5894 * prepare to load the "initialize" uCode */
5895 rc
= iwl4965_load_bsm(priv
);
5898 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc
);
5902 /* start card; "initialize" will load runtime ucode */
5903 iwl4965_nic_start(priv
);
5905 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
5910 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5911 __iwl4965_down(priv
);
5913 /* tried to restart and config the device for as long as our
5914 * patience could withstand */
5915 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
5920 /*****************************************************************************
5922 * Workqueue callbacks
5924 *****************************************************************************/
5926 static void iwl4965_bg_init_alive_start(struct work_struct
*data
)
5928 struct iwl_priv
*priv
=
5929 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
5931 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5934 mutex_lock(&priv
->mutex
);
5935 iwl4965_init_alive_start(priv
);
5936 mutex_unlock(&priv
->mutex
);
5939 static void iwl4965_bg_alive_start(struct work_struct
*data
)
5941 struct iwl_priv
*priv
=
5942 container_of(data
, struct iwl_priv
, alive_start
.work
);
5944 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5947 mutex_lock(&priv
->mutex
);
5948 iwl4965_alive_start(priv
);
5949 mutex_unlock(&priv
->mutex
);
5952 static void iwl4965_bg_rf_kill(struct work_struct
*work
)
5954 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, rf_kill
);
5956 wake_up_interruptible(&priv
->wait_command_queue
);
5958 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5961 mutex_lock(&priv
->mutex
);
5963 if (!iwl4965_is_rfkill(priv
)) {
5964 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
,
5965 "HW and/or SW RF Kill no longer active, restarting "
5967 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5968 queue_work(priv
->workqueue
, &priv
->restart
);
5971 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
5972 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
5973 "disabled by SW switch\n");
5975 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
5976 "Kill switch must be turned off for "
5977 "wireless networking to work.\n");
5979 mutex_unlock(&priv
->mutex
);
5982 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
5984 static void iwl4965_bg_scan_check(struct work_struct
*data
)
5986 struct iwl_priv
*priv
=
5987 container_of(data
, struct iwl_priv
, scan_check
.work
);
5989 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5992 mutex_lock(&priv
->mutex
);
5993 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
5994 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
5995 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
,
5996 "Scan completion watchdog resetting adapter (%dms)\n",
5997 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
5999 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6000 iwl4965_send_scan_abort(priv
);
6002 mutex_unlock(&priv
->mutex
);
6005 static void iwl4965_bg_request_scan(struct work_struct
*data
)
6007 struct iwl_priv
*priv
=
6008 container_of(data
, struct iwl_priv
, request_scan
);
6009 struct iwl_host_cmd cmd
= {
6010 .id
= REPLY_SCAN_CMD
,
6011 .len
= sizeof(struct iwl4965_scan_cmd
),
6012 .meta
.flags
= CMD_SIZE_HUGE
,
6014 struct iwl4965_scan_cmd
*scan
;
6015 struct ieee80211_conf
*conf
= NULL
;
6017 enum ieee80211_band band
;
6021 conf
= ieee80211_get_hw_conf(priv
->hw
);
6023 mutex_lock(&priv
->mutex
);
6025 if (!iwl4965_is_ready(priv
)) {
6026 IWL_WARNING("request scan called when driver not ready.\n");
6030 /* Make sure the scan wasn't cancelled before this queued work
6031 * was given the chance to run... */
6032 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
6035 /* This should never be called or scheduled if there is currently
6036 * a scan active in the hardware. */
6037 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
6038 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
6039 "Ignoring second request.\n");
6044 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
6045 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
6049 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6050 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
6054 if (iwl4965_is_rfkill(priv
)) {
6055 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
6059 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6060 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
6064 if (!priv
->scan_bands
) {
6065 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
6070 priv
->scan
= kmalloc(sizeof(struct iwl4965_scan_cmd
) +
6071 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
6078 memset(scan
, 0, sizeof(struct iwl4965_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
6080 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
6081 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
6083 if (iwl4965_is_associated(priv
)) {
6086 u32 suspend_time
= 100;
6087 u32 scan_suspend_time
= 100;
6088 unsigned long flags
;
6090 IWL_DEBUG_INFO("Scanning while associated...\n");
6092 spin_lock_irqsave(&priv
->lock
, flags
);
6093 interval
= priv
->beacon_int
;
6094 spin_unlock_irqrestore(&priv
->lock
, flags
);
6096 scan
->suspend_time
= 0;
6097 scan
->max_out_time
= cpu_to_le32(200 * 1024);
6099 interval
= suspend_time
;
6101 extra
= (suspend_time
/ interval
) << 22;
6102 scan_suspend_time
= (extra
|
6103 ((suspend_time
% interval
) * 1024));
6104 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
6105 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
6106 scan_suspend_time
, interval
);
6109 /* We should add the ability for user to lock to PASSIVE ONLY */
6110 if (priv
->one_direct_scan
) {
6112 ("Kicking off one direct scan for '%s'\n",
6113 iwl4965_escape_essid(priv
->direct_ssid
,
6114 priv
->direct_ssid_len
));
6115 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6116 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
6117 memcpy(scan
->direct_scan
[0].ssid
,
6118 priv
->direct_ssid
, priv
->direct_ssid_len
);
6120 } else if (!iwl4965_is_associated(priv
) && priv
->essid_len
) {
6121 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6122 scan
->direct_scan
[0].len
= priv
->essid_len
;
6123 memcpy(scan
->direct_scan
[0].ssid
, priv
->essid
, priv
->essid_len
);
6129 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
6130 scan
->tx_cmd
.sta_id
= priv
->hw_setting
.bcast_sta_id
;
6131 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
6134 switch (priv
->scan_bands
) {
6136 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
6137 scan
->tx_cmd
.rate_n_flags
=
6138 iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP
,
6139 RATE_MCS_ANT_B_MSK
|RATE_MCS_CCK_MSK
);
6141 scan
->good_CRC_th
= 0;
6142 band
= IEEE80211_BAND_2GHZ
;
6146 scan
->tx_cmd
.rate_n_flags
=
6147 iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP
,
6148 RATE_MCS_ANT_B_MSK
);
6149 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
6150 band
= IEEE80211_BAND_5GHZ
;
6154 IWL_WARNING("Invalid scan band count\n");
6158 /* We don't build a direct scan probe request; the uCode will do
6159 * that based on the direct_mask added to each channel entry */
6160 cmd_len
= iwl4965_fill_probe_req(priv
, band
,
6161 (struct ieee80211_mgmt
*)scan
->data
,
6162 IWL_MAX_SCAN_SIZE
- sizeof(*scan
), 0);
6164 scan
->tx_cmd
.len
= cpu_to_le16(cmd_len
);
6165 /* select Rx chains */
6167 /* Force use of chains B and C (0x6) for scan Rx.
6168 * Avoid A (0x1) because of its off-channel reception on A-band.
6169 * MIMO is not used here, but value is required to make uCode happy. */
6170 scan
->rx_chain
= RXON_RX_CHAIN_DRIVER_FORCE_MSK
|
6171 cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS
) |
6172 (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS
) |
6173 (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS
));
6175 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
)
6176 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
6180 ("Initiating direct scan for %s.\n",
6181 iwl4965_escape_essid(priv
->essid
, priv
->essid_len
));
6182 scan
->channel_count
=
6183 iwl4965_get_channels_for_scan(
6184 priv
, band
, 1, /* active */
6186 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6188 IWL_DEBUG_SCAN("Initiating indirect scan.\n");
6189 scan
->channel_count
=
6190 iwl4965_get_channels_for_scan(
6191 priv
, band
, 0, /* passive */
6193 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6196 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
6197 scan
->channel_count
* sizeof(struct iwl4965_scan_channel
);
6199 scan
->len
= cpu_to_le16(cmd
.len
);
6201 set_bit(STATUS_SCAN_HW
, &priv
->status
);
6202 ret
= iwl_send_cmd_sync(priv
, &cmd
);
6206 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
6207 IWL_SCAN_CHECK_WATCHDOG
);
6209 mutex_unlock(&priv
->mutex
);
6213 /* inform mac80211 scan aborted */
6214 queue_work(priv
->workqueue
, &priv
->scan_completed
);
6215 mutex_unlock(&priv
->mutex
);
6218 static void iwl4965_bg_up(struct work_struct
*data
)
6220 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, up
);
6222 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6225 mutex_lock(&priv
->mutex
);
6227 mutex_unlock(&priv
->mutex
);
6230 static void iwl4965_bg_restart(struct work_struct
*data
)
6232 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
6234 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6238 queue_work(priv
->workqueue
, &priv
->up
);
6241 static void iwl4965_bg_rx_replenish(struct work_struct
*data
)
6243 struct iwl_priv
*priv
=
6244 container_of(data
, struct iwl_priv
, rx_replenish
);
6246 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6249 mutex_lock(&priv
->mutex
);
6250 iwl4965_rx_replenish(priv
);
6251 mutex_unlock(&priv
->mutex
);
6254 #define IWL_DELAY_NEXT_SCAN (HZ*2)
6256 static void iwl4965_bg_post_associate(struct work_struct
*data
)
6258 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
,
6259 post_associate
.work
);
6260 struct ieee80211_conf
*conf
= NULL
;
6262 DECLARE_MAC_BUF(mac
);
6264 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6265 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
6269 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
6271 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
6274 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6277 mutex_lock(&priv
->mutex
);
6279 if (!priv
->vif
|| !priv
->is_open
) {
6280 mutex_unlock(&priv
->mutex
);
6283 iwl4965_scan_cancel_timeout(priv
, 200);
6285 conf
= ieee80211_get_hw_conf(priv
->hw
);
6287 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6288 iwl4965_commit_rxon(priv
);
6290 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
6291 iwl4965_setup_rxon_timing(priv
);
6292 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6293 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6295 IWL_WARNING("REPLY_RXON_TIMING failed - "
6296 "Attempting to continue.\n");
6298 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6300 #ifdef CONFIG_IWL4965_HT
6301 if (priv
->current_ht_config
.is_ht
)
6302 iwl4965_set_rxon_ht(priv
, &priv
->current_ht_config
);
6303 #endif /* CONFIG_IWL4965_HT*/
6304 iwl4965_set_rxon_chain(priv
);
6305 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6307 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
6308 priv
->assoc_id
, priv
->beacon_int
);
6310 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6311 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6313 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6315 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6316 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6317 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
6319 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6321 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6322 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6326 iwl4965_commit_rxon(priv
);
6328 switch (priv
->iw_mode
) {
6329 case IEEE80211_IF_TYPE_STA
:
6330 iwl4965_rate_scale_init(priv
->hw
, IWL_AP_ID
);
6333 case IEEE80211_IF_TYPE_IBSS
:
6335 /* clear out the station table */
6336 iwlcore_clear_stations_table(priv
);
6338 iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0);
6339 iwl4965_rxon_add_station(priv
, priv
->bssid
, 0);
6340 iwl4965_rate_scale_init(priv
->hw
, IWL_STA_ID
);
6341 iwl4965_send_beacon_cmd(priv
);
6346 IWL_ERROR("%s Should not be called in %d mode\n",
6347 __FUNCTION__
, priv
->iw_mode
);
6351 iwl4965_sequence_reset(priv
);
6353 #ifdef CONFIG_IWL4965_SENSITIVITY
6354 /* Enable Rx differential gain and sensitivity calibrations */
6355 iwl4965_chain_noise_reset(priv
);
6356 priv
->start_calib
= 1;
6357 #endif /* CONFIG_IWL4965_SENSITIVITY */
6359 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6360 priv
->assoc_station_added
= 1;
6362 iwl4965_activate_qos(priv
, 0);
6364 /* we have just associated, don't start scan too early */
6365 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
6366 mutex_unlock(&priv
->mutex
);
6369 static void iwl4965_bg_abort_scan(struct work_struct
*work
)
6371 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, abort_scan
);
6373 if (!iwl4965_is_ready(priv
))
6376 mutex_lock(&priv
->mutex
);
6378 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
6379 iwl4965_send_scan_abort(priv
);
6381 mutex_unlock(&priv
->mutex
);
6384 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
6386 static void iwl4965_bg_scan_completed(struct work_struct
*work
)
6388 struct iwl_priv
*priv
=
6389 container_of(work
, struct iwl_priv
, scan_completed
);
6391 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
, "SCAN complete scan\n");
6393 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6396 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
6397 iwl4965_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
6399 ieee80211_scan_completed(priv
->hw
);
6401 /* Since setting the TXPOWER may have been deferred while
6402 * performing the scan, fire one off */
6403 mutex_lock(&priv
->mutex
);
6404 iwl4965_hw_reg_send_txpower(priv
);
6405 mutex_unlock(&priv
->mutex
);
6408 /*****************************************************************************
6410 * mac80211 entry point functions
6412 *****************************************************************************/
6414 #define UCODE_READY_TIMEOUT (2 * HZ)
6416 static int iwl4965_mac_start(struct ieee80211_hw
*hw
)
6418 struct iwl_priv
*priv
= hw
->priv
;
6421 IWL_DEBUG_MAC80211("enter\n");
6423 if (pci_enable_device(priv
->pci_dev
)) {
6424 IWL_ERROR("Fail to pci_enable_device\n");
6427 pci_restore_state(priv
->pci_dev
);
6428 pci_enable_msi(priv
->pci_dev
);
6430 ret
= request_irq(priv
->pci_dev
->irq
, iwl4965_isr
, IRQF_SHARED
,
6433 IWL_ERROR("Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
6434 goto out_disable_msi
;
6437 /* we should be verifying the device is ready to be opened */
6438 mutex_lock(&priv
->mutex
);
6440 memset(&priv
->staging_rxon
, 0, sizeof(struct iwl4965_rxon_cmd
));
6441 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
6442 * ucode filename and max sizes are card-specific. */
6444 if (!priv
->ucode_code
.len
) {
6445 ret
= iwl4965_read_ucode(priv
);
6447 IWL_ERROR("Could not read microcode: %d\n", ret
);
6448 mutex_unlock(&priv
->mutex
);
6449 goto out_release_irq
;
6453 ret
= __iwl4965_up(priv
);
6455 mutex_unlock(&priv
->mutex
);
6458 goto out_release_irq
;
6460 IWL_DEBUG_INFO("Start UP work done.\n");
6462 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
6465 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
6466 * mac80211 will not be run successfully. */
6467 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
6468 test_bit(STATUS_READY
, &priv
->status
),
6469 UCODE_READY_TIMEOUT
);
6471 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6472 IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
6473 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
6475 goto out_release_irq
;
6480 IWL_DEBUG_MAC80211("leave\n");
6484 free_irq(priv
->pci_dev
->irq
, priv
);
6486 pci_disable_msi(priv
->pci_dev
);
6487 pci_disable_device(priv
->pci_dev
);
6489 IWL_DEBUG_MAC80211("leave - failed\n");
6493 static void iwl4965_mac_stop(struct ieee80211_hw
*hw
)
6495 struct iwl_priv
*priv
= hw
->priv
;
6497 IWL_DEBUG_MAC80211("enter\n");
6499 if (!priv
->is_open
) {
6500 IWL_DEBUG_MAC80211("leave - skip\n");
6506 if (iwl4965_is_ready_rf(priv
)) {
6507 /* stop mac, cancel any scan request and clear
6508 * RXON_FILTER_ASSOC_MSK BIT
6510 mutex_lock(&priv
->mutex
);
6511 iwl4965_scan_cancel_timeout(priv
, 100);
6512 cancel_delayed_work(&priv
->post_associate
);
6513 mutex_unlock(&priv
->mutex
);
6518 flush_workqueue(priv
->workqueue
);
6519 free_irq(priv
->pci_dev
->irq
, priv
);
6520 pci_disable_msi(priv
->pci_dev
);
6521 pci_save_state(priv
->pci_dev
);
6522 pci_disable_device(priv
->pci_dev
);
6524 IWL_DEBUG_MAC80211("leave\n");
6527 static int iwl4965_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
6528 struct ieee80211_tx_control
*ctl
)
6530 struct iwl_priv
*priv
= hw
->priv
;
6532 IWL_DEBUG_MAC80211("enter\n");
6534 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
6535 IWL_DEBUG_MAC80211("leave - monitor\n");
6539 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
6540 ctl
->tx_rate
->bitrate
);
6542 if (iwl4965_tx_skb(priv
, skb
, ctl
))
6543 dev_kfree_skb_any(skb
);
6545 IWL_DEBUG_MAC80211("leave\n");
6549 static int iwl4965_mac_add_interface(struct ieee80211_hw
*hw
,
6550 struct ieee80211_if_init_conf
*conf
)
6552 struct iwl_priv
*priv
= hw
->priv
;
6553 unsigned long flags
;
6554 DECLARE_MAC_BUF(mac
);
6556 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
6559 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
6563 spin_lock_irqsave(&priv
->lock
, flags
);
6564 priv
->vif
= conf
->vif
;
6566 spin_unlock_irqrestore(&priv
->lock
, flags
);
6568 mutex_lock(&priv
->mutex
);
6570 if (conf
->mac_addr
) {
6571 IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac
, conf
->mac_addr
));
6572 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
6575 if (iwl4965_is_ready(priv
))
6576 iwl4965_set_mode(priv
, conf
->type
);
6578 mutex_unlock(&priv
->mutex
);
6580 IWL_DEBUG_MAC80211("leave\n");
6585 * iwl4965_mac_config - mac80211 config callback
6587 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
6588 * be set inappropriately and the driver currently sets the hardware up to
6589 * use it whenever needed.
6591 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
6593 struct iwl_priv
*priv
= hw
->priv
;
6594 const struct iwl_channel_info
*ch_info
;
6595 unsigned long flags
;
6598 mutex_lock(&priv
->mutex
);
6599 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
6601 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
6603 if (!iwl4965_is_ready(priv
)) {
6604 IWL_DEBUG_MAC80211("leave - not ready\n");
6609 if (unlikely(!priv
->cfg
->mod_params
->disable_hw_scan
&&
6610 test_bit(STATUS_SCANNING
, &priv
->status
))) {
6611 IWL_DEBUG_MAC80211("leave - scanning\n");
6612 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
6613 mutex_unlock(&priv
->mutex
);
6617 spin_lock_irqsave(&priv
->lock
, flags
);
6619 ch_info
= iwl_get_channel_info(priv
, conf
->channel
->band
,
6620 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
6621 if (!is_channel_valid(ch_info
)) {
6622 IWL_DEBUG_MAC80211("leave - invalid channel\n");
6623 spin_unlock_irqrestore(&priv
->lock
, flags
);
6628 #ifdef CONFIG_IWL4965_HT
6629 /* if we are switching from ht to 2.4 clear flags
6630 * from any ht related info since 2.4 does not
6632 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != conf
->channel
->hw_value
)
6633 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
6634 && !(conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
)
6637 priv
->staging_rxon
.flags
= 0;
6638 #endif /* CONFIG_IWL4965_HT */
6640 iwlcore_set_rxon_channel(priv
, conf
->channel
->band
,
6641 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
6643 iwl4965_set_flags_for_phymode(priv
, conf
->channel
->band
);
6645 /* The list of supported rates and rate mask can be different
6646 * for each band; since the band may have changed, reset
6647 * the rate mask to what mac80211 lists */
6648 iwl4965_set_rate(priv
);
6650 spin_unlock_irqrestore(&priv
->lock
, flags
);
6652 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
6653 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
6654 iwl4965_hw_channel_switch(priv
, conf
->channel
);
6659 iwl4965_radio_kill_sw(priv
, !conf
->radio_enabled
);
6661 if (!conf
->radio_enabled
) {
6662 IWL_DEBUG_MAC80211("leave - radio disabled\n");
6666 if (iwl4965_is_rfkill(priv
)) {
6667 IWL_DEBUG_MAC80211("leave - RF kill\n");
6672 iwl4965_set_rate(priv
);
6674 if (memcmp(&priv
->active_rxon
,
6675 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
6676 iwl4965_commit_rxon(priv
);
6678 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
6680 IWL_DEBUG_MAC80211("leave\n");
6683 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
6684 mutex_unlock(&priv
->mutex
);
6688 static void iwl4965_config_ap(struct iwl_priv
*priv
)
6692 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6695 /* The following should be done only at AP bring up */
6696 if ((priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) == 0) {
6698 /* RXON - unassoc (to set timing command) */
6699 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6700 iwl4965_commit_rxon(priv
);
6703 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
6704 iwl4965_setup_rxon_timing(priv
);
6705 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6706 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6708 IWL_WARNING("REPLY_RXON_TIMING failed - "
6709 "Attempting to continue.\n");
6711 iwl4965_set_rxon_chain(priv
);
6713 /* FIXME: what should be the assoc_id for AP? */
6714 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6715 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6716 priv
->staging_rxon
.flags
|=
6717 RXON_FLG_SHORT_PREAMBLE_MSK
;
6719 priv
->staging_rxon
.flags
&=
6720 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6722 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6723 if (priv
->assoc_capability
&
6724 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6725 priv
->staging_rxon
.flags
|=
6726 RXON_FLG_SHORT_SLOT_MSK
;
6728 priv
->staging_rxon
.flags
&=
6729 ~RXON_FLG_SHORT_SLOT_MSK
;
6731 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6732 priv
->staging_rxon
.flags
&=
6733 ~RXON_FLG_SHORT_SLOT_MSK
;
6735 /* restore RXON assoc */
6736 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6737 iwl4965_commit_rxon(priv
);
6738 iwl4965_activate_qos(priv
, 1);
6739 iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0);
6741 iwl4965_send_beacon_cmd(priv
);
6743 /* FIXME - we need to add code here to detect a totally new
6744 * configuration, reset the AP, unassoc, rxon timing, assoc,
6745 * clear sta table, add BCAST sta... */
6748 static int iwl4965_mac_config_interface(struct ieee80211_hw
*hw
,
6749 struct ieee80211_vif
*vif
,
6750 struct ieee80211_if_conf
*conf
)
6752 struct iwl_priv
*priv
= hw
->priv
;
6753 DECLARE_MAC_BUF(mac
);
6754 unsigned long flags
;
6760 if (priv
->vif
!= vif
) {
6761 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
6762 mutex_unlock(&priv
->mutex
);
6766 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
6767 (!conf
->beacon
|| !conf
->ssid_len
)) {
6769 ("Leaving in AP mode because HostAPD is not ready.\n");
6773 if (!iwl4965_is_alive(priv
))
6776 mutex_lock(&priv
->mutex
);
6779 IWL_DEBUG_MAC80211("bssid: %s\n",
6780 print_mac(mac
, conf
->bssid
));
6783 * very dubious code was here; the probe filtering flag is never set:
6785 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
6786 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
6789 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6791 conf
->bssid
= priv
->mac_addr
;
6792 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
6793 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
6794 print_mac(mac
, conf
->bssid
));
6796 if (priv
->ibss_beacon
)
6797 dev_kfree_skb(priv
->ibss_beacon
);
6799 priv
->ibss_beacon
= conf
->beacon
;
6802 if (iwl4965_is_rfkill(priv
))
6805 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
6806 !is_multicast_ether_addr(conf
->bssid
)) {
6807 /* If there is currently a HW scan going on in the background
6808 * then we need to cancel it else the RXON below will fail. */
6809 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
6810 IWL_WARNING("Aborted scan still in progress "
6812 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
6813 mutex_unlock(&priv
->mutex
);
6816 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
6818 /* TODO: Audit driver for usage of these members and see
6819 * if mac80211 deprecates them (priv->bssid looks like it
6820 * shouldn't be there, but I haven't scanned the IBSS code
6821 * to verify) - jpk */
6822 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
6824 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
6825 iwl4965_config_ap(priv
);
6827 rc
= iwl4965_commit_rxon(priv
);
6828 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
6829 iwl4965_rxon_add_station(
6830 priv
, priv
->active_rxon
.bssid_addr
, 1);
6834 iwl4965_scan_cancel_timeout(priv
, 100);
6835 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6836 iwl4965_commit_rxon(priv
);
6840 spin_lock_irqsave(&priv
->lock
, flags
);
6841 if (!conf
->ssid_len
)
6842 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
6844 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
6846 priv
->essid_len
= conf
->ssid_len
;
6847 spin_unlock_irqrestore(&priv
->lock
, flags
);
6849 IWL_DEBUG_MAC80211("leave\n");
6850 mutex_unlock(&priv
->mutex
);
6855 static void iwl4965_configure_filter(struct ieee80211_hw
*hw
,
6856 unsigned int changed_flags
,
6857 unsigned int *total_flags
,
6858 int mc_count
, struct dev_addr_list
*mc_list
)
6862 * see also iwl4965_connection_init_rx_config
6867 static void iwl4965_mac_remove_interface(struct ieee80211_hw
*hw
,
6868 struct ieee80211_if_init_conf
*conf
)
6870 struct iwl_priv
*priv
= hw
->priv
;
6872 IWL_DEBUG_MAC80211("enter\n");
6874 mutex_lock(&priv
->mutex
);
6876 if (iwl4965_is_ready_rf(priv
)) {
6877 iwl4965_scan_cancel_timeout(priv
, 100);
6878 cancel_delayed_work(&priv
->post_associate
);
6879 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6880 iwl4965_commit_rxon(priv
);
6882 if (priv
->vif
== conf
->vif
) {
6884 memset(priv
->bssid
, 0, ETH_ALEN
);
6885 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
6886 priv
->essid_len
= 0;
6888 mutex_unlock(&priv
->mutex
);
6890 IWL_DEBUG_MAC80211("leave\n");
6894 static void iwl4965_bss_info_changed(struct ieee80211_hw
*hw
,
6895 struct ieee80211_vif
*vif
,
6896 struct ieee80211_bss_conf
*bss_conf
,
6899 struct iwl_priv
*priv
= hw
->priv
;
6901 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
6902 if (bss_conf
->use_short_preamble
)
6903 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6905 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6908 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
6909 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
6910 priv
->staging_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
6912 priv
->staging_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
6915 if (changes
& BSS_CHANGED_ASSOC
) {
6918 * do stuff instead of sniffing assoc resp
6922 if (iwl4965_is_associated(priv
))
6923 iwl4965_send_rxon_assoc(priv
);
6926 static int iwl4965_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
6929 unsigned long flags
;
6930 struct iwl_priv
*priv
= hw
->priv
;
6932 IWL_DEBUG_MAC80211("enter\n");
6934 mutex_lock(&priv
->mutex
);
6935 spin_lock_irqsave(&priv
->lock
, flags
);
6937 if (!iwl4965_is_ready_rf(priv
)) {
6939 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
6943 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
6945 IWL_ERROR("ERROR: APs don't scan\n");
6949 /* we don't schedule scan within next_scan_jiffies period */
6950 if (priv
->next_scan_jiffies
&&
6951 time_after(priv
->next_scan_jiffies
, jiffies
)) {
6955 /* if we just finished scan ask for delay */
6956 if (priv
->last_scan_jiffies
&& time_after(priv
->last_scan_jiffies
+
6957 IWL_DELAY_NEXT_SCAN
, jiffies
)) {
6962 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
6963 iwl4965_escape_essid(ssid
, len
), (int)len
);
6965 priv
->one_direct_scan
= 1;
6966 priv
->direct_ssid_len
= (u8
)
6967 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
6968 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
6970 priv
->one_direct_scan
= 0;
6972 rc
= iwl4965_scan_initiate(priv
);
6974 IWL_DEBUG_MAC80211("leave\n");
6977 spin_unlock_irqrestore(&priv
->lock
, flags
);
6978 mutex_unlock(&priv
->mutex
);
6983 static void iwl4965_mac_update_tkip_key(struct ieee80211_hw
*hw
,
6984 struct ieee80211_key_conf
*keyconf
, const u8
*addr
,
6985 u32 iv32
, u16
*phase1key
)
6987 struct iwl_priv
*priv
= hw
->priv
;
6988 u8 sta_id
= IWL_INVALID_STATION
;
6989 unsigned long flags
;
6990 __le16 key_flags
= 0;
6992 DECLARE_MAC_BUF(mac
);
6994 IWL_DEBUG_MAC80211("enter\n");
6996 sta_id
= iwl4965_hw_find_station(priv
, addr
);
6997 if (sta_id
== IWL_INVALID_STATION
) {
6998 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
6999 print_mac(mac
, addr
));
7003 iwl4965_scan_cancel_timeout(priv
, 100);
7005 key_flags
|= (STA_KEY_FLG_TKIP
| STA_KEY_FLG_MAP_KEY_MSK
);
7006 key_flags
|= cpu_to_le16(keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
7007 key_flags
&= ~STA_KEY_FLG_INVALID
;
7009 if (sta_id
== priv
->hw_setting
.bcast_sta_id
)
7010 key_flags
|= STA_KEY_MULTICAST_MSK
;
7012 spin_lock_irqsave(&priv
->sta_lock
, flags
);
7014 priv
->stations
[sta_id
].sta
.key
.key_offset
=
7015 (sta_id
% STA_KEY_MAX_NUM
);/* FIXME */
7016 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
7017 priv
->stations
[sta_id
].sta
.key
.tkip_rx_tsc_byte2
= (u8
) iv32
;
7019 for (i
= 0; i
< 5; i
++)
7020 priv
->stations
[sta_id
].sta
.key
.tkip_rx_ttak
[i
] =
7021 cpu_to_le16(phase1key
[i
]);
7023 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
7024 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
7026 iwl4965_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
7028 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
7030 IWL_DEBUG_MAC80211("leave\n");
7033 static int iwl4965_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
7034 const u8
*local_addr
, const u8
*addr
,
7035 struct ieee80211_key_conf
*key
)
7037 struct iwl_priv
*priv
= hw
->priv
;
7038 DECLARE_MAC_BUF(mac
);
7040 u8 sta_id
= IWL_INVALID_STATION
;
7043 IWL_DEBUG_MAC80211("enter\n");
7045 if (!priv
->cfg
->mod_params
->hw_crypto
) {
7046 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
7050 if (is_zero_ether_addr(addr
))
7051 /* only support pairwise keys */
7054 /* FIXME: need to differenciate between static and dynamic key
7055 * in the level of mac80211 */
7056 static_key
= !iwl4965_is_associated(priv
);
7059 sta_id
= iwl4965_hw_find_station(priv
, addr
);
7060 if (sta_id
== IWL_INVALID_STATION
) {
7061 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
7062 print_mac(mac
, addr
));
7067 iwl4965_scan_cancel_timeout(priv
, 100);
7072 ret
= iwl4965_set_static_key(priv
, key
);
7074 ret
= iwl4965_set_dynamic_key(priv
, key
, sta_id
);
7076 IWL_DEBUG_MAC80211("enable hwcrypto key\n");
7080 ret
= iwl4965_remove_static_key(priv
);
7082 ret
= iwl4965_clear_sta_key_info(priv
, sta_id
);
7084 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
7090 IWL_DEBUG_MAC80211("leave\n");
7095 static int iwl4965_mac_conf_tx(struct ieee80211_hw
*hw
, int queue
,
7096 const struct ieee80211_tx_queue_params
*params
)
7098 struct iwl_priv
*priv
= hw
->priv
;
7099 unsigned long flags
;
7102 IWL_DEBUG_MAC80211("enter\n");
7104 if (!iwl4965_is_ready_rf(priv
)) {
7105 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7109 if (queue
>= AC_NUM
) {
7110 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
7114 if (!priv
->qos_data
.qos_enable
) {
7115 priv
->qos_data
.qos_active
= 0;
7116 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
7119 q
= AC_NUM
- 1 - queue
;
7121 spin_lock_irqsave(&priv
->lock
, flags
);
7123 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
7124 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
7125 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
7126 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
7127 cpu_to_le16((params
->txop
* 32));
7129 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
7130 priv
->qos_data
.qos_active
= 1;
7132 spin_unlock_irqrestore(&priv
->lock
, flags
);
7134 mutex_lock(&priv
->mutex
);
7135 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
7136 iwl4965_activate_qos(priv
, 1);
7137 else if (priv
->assoc_id
&& iwl4965_is_associated(priv
))
7138 iwl4965_activate_qos(priv
, 0);
7140 mutex_unlock(&priv
->mutex
);
7142 IWL_DEBUG_MAC80211("leave\n");
7146 static int iwl4965_mac_get_tx_stats(struct ieee80211_hw
*hw
,
7147 struct ieee80211_tx_queue_stats
*stats
)
7149 struct iwl_priv
*priv
= hw
->priv
;
7151 struct iwl4965_tx_queue
*txq
;
7152 struct iwl4965_queue
*q
;
7153 unsigned long flags
;
7155 IWL_DEBUG_MAC80211("enter\n");
7157 if (!iwl4965_is_ready_rf(priv
)) {
7158 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7162 spin_lock_irqsave(&priv
->lock
, flags
);
7164 for (i
= 0; i
< AC_NUM
; i
++) {
7165 txq
= &priv
->txq
[i
];
7167 avail
= iwl4965_queue_space(q
);
7169 stats
->data
[i
].len
= q
->n_window
- avail
;
7170 stats
->data
[i
].limit
= q
->n_window
- q
->high_mark
;
7171 stats
->data
[i
].count
= q
->n_window
;
7174 spin_unlock_irqrestore(&priv
->lock
, flags
);
7176 IWL_DEBUG_MAC80211("leave\n");
7181 static int iwl4965_mac_get_stats(struct ieee80211_hw
*hw
,
7182 struct ieee80211_low_level_stats
*stats
)
7184 IWL_DEBUG_MAC80211("enter\n");
7185 IWL_DEBUG_MAC80211("leave\n");
7190 static u64
iwl4965_mac_get_tsf(struct ieee80211_hw
*hw
)
7192 IWL_DEBUG_MAC80211("enter\n");
7193 IWL_DEBUG_MAC80211("leave\n");
7198 static void iwl4965_mac_reset_tsf(struct ieee80211_hw
*hw
)
7200 struct iwl_priv
*priv
= hw
->priv
;
7201 unsigned long flags
;
7203 mutex_lock(&priv
->mutex
);
7204 IWL_DEBUG_MAC80211("enter\n");
7206 priv
->lq_mngr
.lq_ready
= 0;
7207 #ifdef CONFIG_IWL4965_HT
7208 spin_lock_irqsave(&priv
->lock
, flags
);
7209 memset(&priv
->current_ht_config
, 0, sizeof(struct iwl_ht_info
));
7210 spin_unlock_irqrestore(&priv
->lock
, flags
);
7211 #endif /* CONFIG_IWL4965_HT */
7213 iwlcore_reset_qos(priv
);
7215 cancel_delayed_work(&priv
->post_associate
);
7217 spin_lock_irqsave(&priv
->lock
, flags
);
7219 priv
->assoc_capability
= 0;
7220 priv
->call_post_assoc_from_beacon
= 0;
7221 priv
->assoc_station_added
= 0;
7223 /* new association get rid of ibss beacon skb */
7224 if (priv
->ibss_beacon
)
7225 dev_kfree_skb(priv
->ibss_beacon
);
7227 priv
->ibss_beacon
= NULL
;
7229 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
7230 priv
->timestamp1
= 0;
7231 priv
->timestamp0
= 0;
7232 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
7233 priv
->beacon_int
= 0;
7235 spin_unlock_irqrestore(&priv
->lock
, flags
);
7237 if (!iwl4965_is_ready_rf(priv
)) {
7238 IWL_DEBUG_MAC80211("leave - not ready\n");
7239 mutex_unlock(&priv
->mutex
);
7243 /* we are restarting association process
7244 * clear RXON_FILTER_ASSOC_MSK bit
7246 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
7247 iwl4965_scan_cancel_timeout(priv
, 100);
7248 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7249 iwl4965_commit_rxon(priv
);
7252 /* Per mac80211.h: This is only used in IBSS mode... */
7253 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7255 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
7256 mutex_unlock(&priv
->mutex
);
7260 priv
->only_active_channel
= 0;
7262 iwl4965_set_rate(priv
);
7264 mutex_unlock(&priv
->mutex
);
7266 IWL_DEBUG_MAC80211("leave\n");
7269 static int iwl4965_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
7270 struct ieee80211_tx_control
*control
)
7272 struct iwl_priv
*priv
= hw
->priv
;
7273 unsigned long flags
;
7275 mutex_lock(&priv
->mutex
);
7276 IWL_DEBUG_MAC80211("enter\n");
7278 if (!iwl4965_is_ready_rf(priv
)) {
7279 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7280 mutex_unlock(&priv
->mutex
);
7284 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7285 IWL_DEBUG_MAC80211("leave - not IBSS\n");
7286 mutex_unlock(&priv
->mutex
);
7290 spin_lock_irqsave(&priv
->lock
, flags
);
7292 if (priv
->ibss_beacon
)
7293 dev_kfree_skb(priv
->ibss_beacon
);
7295 priv
->ibss_beacon
= skb
;
7299 IWL_DEBUG_MAC80211("leave\n");
7300 spin_unlock_irqrestore(&priv
->lock
, flags
);
7302 iwlcore_reset_qos(priv
);
7304 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
7306 mutex_unlock(&priv
->mutex
);
7311 #ifdef CONFIG_IWL4965_HT
7313 static void iwl4965_ht_info_fill(struct ieee80211_conf
*conf
,
7314 struct iwl_priv
*priv
)
7316 struct iwl_ht_info
*iwl_conf
= &priv
->current_ht_config
;
7317 struct ieee80211_ht_info
*ht_conf
= &conf
->ht_conf
;
7318 struct ieee80211_ht_bss_info
*ht_bss_conf
= &conf
->ht_bss_conf
;
7320 IWL_DEBUG_MAC80211("enter: \n");
7322 if (!(conf
->flags
& IEEE80211_CONF_SUPPORT_HT_MODE
)) {
7323 iwl_conf
->is_ht
= 0;
7327 iwl_conf
->is_ht
= 1;
7328 priv
->ps_mode
= (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
7330 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_20
)
7331 iwl_conf
->sgf
|= 0x1;
7332 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_40
)
7333 iwl_conf
->sgf
|= 0x2;
7335 iwl_conf
->is_green_field
= !!(ht_conf
->cap
& IEEE80211_HT_CAP_GRN_FLD
);
7336 iwl_conf
->max_amsdu_size
=
7337 !!(ht_conf
->cap
& IEEE80211_HT_CAP_MAX_AMSDU
);
7339 iwl_conf
->supported_chan_width
=
7340 !!(ht_conf
->cap
& IEEE80211_HT_CAP_SUP_WIDTH
);
7341 iwl_conf
->extension_chan_offset
=
7342 ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_SEC_OFFSET
;
7343 /* If no above or below channel supplied disable FAT channel */
7344 if (iwl_conf
->extension_chan_offset
!= IWL_EXT_CHANNEL_OFFSET_ABOVE
&&
7345 iwl_conf
->extension_chan_offset
!= IWL_EXT_CHANNEL_OFFSET_BELOW
)
7346 iwl_conf
->supported_chan_width
= 0;
7348 iwl_conf
->tx_mimo_ps_mode
=
7349 (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
7350 memcpy(iwl_conf
->supp_mcs_set
, ht_conf
->supp_mcs_set
, 16);
7352 iwl_conf
->control_channel
= ht_bss_conf
->primary_channel
;
7353 iwl_conf
->tx_chan_width
=
7354 !!(ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_WIDTH
);
7355 iwl_conf
->ht_protection
=
7356 ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_HT_PROTECTION
;
7357 iwl_conf
->non_GF_STA_present
=
7358 !!(ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_NON_GF_STA_PRSNT
);
7360 IWL_DEBUG_MAC80211("control channel %d\n",
7361 iwl_conf
->control_channel
);
7362 IWL_DEBUG_MAC80211("leave\n");
7365 static int iwl4965_mac_conf_ht(struct ieee80211_hw
*hw
,
7366 struct ieee80211_conf
*conf
)
7368 struct iwl_priv
*priv
= hw
->priv
;
7370 IWL_DEBUG_MAC80211("enter: \n");
7372 iwl4965_ht_info_fill(conf
, priv
);
7373 iwl4965_set_rxon_chain(priv
);
7375 if (priv
&& priv
->assoc_id
&&
7376 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)) {
7377 unsigned long flags
;
7379 spin_lock_irqsave(&priv
->lock
, flags
);
7380 if (priv
->beacon_int
)
7381 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
7383 priv
->call_post_assoc_from_beacon
= 1;
7384 spin_unlock_irqrestore(&priv
->lock
, flags
);
7387 IWL_DEBUG_MAC80211("leave:\n");
7391 #endif /*CONFIG_IWL4965_HT*/
7393 /*****************************************************************************
7397 *****************************************************************************/
7399 #ifdef CONFIG_IWLWIFI_DEBUG
7402 * The following adds a new attribute to the sysfs representation
7403 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
7404 * used for controlling the debug level.
7406 * See the level definitions in iwl for details.
7409 static ssize_t
show_debug_level(struct device_driver
*d
, char *buf
)
7411 return sprintf(buf
, "0x%08X\n", iwl_debug_level
);
7413 static ssize_t
store_debug_level(struct device_driver
*d
,
7414 const char *buf
, size_t count
)
7416 char *p
= (char *)buf
;
7419 val
= simple_strtoul(p
, &p
, 0);
7421 printk(KERN_INFO DRV_NAME
7422 ": %s is not in hex or decimal form.\n", buf
);
7424 iwl_debug_level
= val
;
7426 return strnlen(buf
, count
);
7429 static DRIVER_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
7430 show_debug_level
, store_debug_level
);
7432 #endif /* CONFIG_IWLWIFI_DEBUG */
7434 static ssize_t
show_rf_kill(struct device
*d
,
7435 struct device_attribute
*attr
, char *buf
)
7438 * 0 - RF kill not enabled
7439 * 1 - SW based RF kill active (sysfs)
7440 * 2 - HW based RF kill active
7441 * 3 - Both HW and SW based RF kill active
7443 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7444 int val
= (test_bit(STATUS_RF_KILL_SW
, &priv
->status
) ? 0x1 : 0x0) |
7445 (test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ? 0x2 : 0x0);
7447 return sprintf(buf
, "%i\n", val
);
7450 static ssize_t
store_rf_kill(struct device
*d
,
7451 struct device_attribute
*attr
,
7452 const char *buf
, size_t count
)
7454 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7456 mutex_lock(&priv
->mutex
);
7457 iwl4965_radio_kill_sw(priv
, buf
[0] == '1');
7458 mutex_unlock(&priv
->mutex
);
7463 static DEVICE_ATTR(rf_kill
, S_IWUSR
| S_IRUGO
, show_rf_kill
, store_rf_kill
);
7465 static ssize_t
show_temperature(struct device
*d
,
7466 struct device_attribute
*attr
, char *buf
)
7468 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7470 if (!iwl4965_is_alive(priv
))
7473 return sprintf(buf
, "%d\n", iwl4965_hw_get_temperature(priv
));
7476 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
7478 static ssize_t
show_rs_window(struct device
*d
,
7479 struct device_attribute
*attr
,
7482 struct iwl_priv
*priv
= d
->driver_data
;
7483 return iwl4965_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
7485 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
7487 static ssize_t
show_tx_power(struct device
*d
,
7488 struct device_attribute
*attr
, char *buf
)
7490 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7491 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
7494 static ssize_t
store_tx_power(struct device
*d
,
7495 struct device_attribute
*attr
,
7496 const char *buf
, size_t count
)
7498 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7499 char *p
= (char *)buf
;
7502 val
= simple_strtoul(p
, &p
, 10);
7504 printk(KERN_INFO DRV_NAME
7505 ": %s is not in decimal form.\n", buf
);
7507 iwl4965_hw_reg_set_txpower(priv
, val
);
7512 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
7514 static ssize_t
show_flags(struct device
*d
,
7515 struct device_attribute
*attr
, char *buf
)
7517 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7519 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
7522 static ssize_t
store_flags(struct device
*d
,
7523 struct device_attribute
*attr
,
7524 const char *buf
, size_t count
)
7526 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7527 u32 flags
= simple_strtoul(buf
, NULL
, 0);
7529 mutex_lock(&priv
->mutex
);
7530 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
7531 /* Cancel any currently running scans... */
7532 if (iwl4965_scan_cancel_timeout(priv
, 100))
7533 IWL_WARNING("Could not cancel scan.\n");
7535 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
7537 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
7538 iwl4965_commit_rxon(priv
);
7541 mutex_unlock(&priv
->mutex
);
7546 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
7548 static ssize_t
show_filter_flags(struct device
*d
,
7549 struct device_attribute
*attr
, char *buf
)
7551 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7553 return sprintf(buf
, "0x%04X\n",
7554 le32_to_cpu(priv
->active_rxon
.filter_flags
));
7557 static ssize_t
store_filter_flags(struct device
*d
,
7558 struct device_attribute
*attr
,
7559 const char *buf
, size_t count
)
7561 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7562 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
7564 mutex_lock(&priv
->mutex
);
7565 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
7566 /* Cancel any currently running scans... */
7567 if (iwl4965_scan_cancel_timeout(priv
, 100))
7568 IWL_WARNING("Could not cancel scan.\n");
7570 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
7571 "0x%04X\n", filter_flags
);
7572 priv
->staging_rxon
.filter_flags
=
7573 cpu_to_le32(filter_flags
);
7574 iwl4965_commit_rxon(priv
);
7577 mutex_unlock(&priv
->mutex
);
7582 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
7583 store_filter_flags
);
7585 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
7587 static ssize_t
show_measurement(struct device
*d
,
7588 struct device_attribute
*attr
, char *buf
)
7590 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7591 struct iwl4965_spectrum_notification measure_report
;
7592 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
7593 u8
*data
= (u8
*) & measure_report
;
7594 unsigned long flags
;
7596 spin_lock_irqsave(&priv
->lock
, flags
);
7597 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
7598 spin_unlock_irqrestore(&priv
->lock
, flags
);
7601 memcpy(&measure_report
, &priv
->measure_report
, size
);
7602 priv
->measurement_status
= 0;
7603 spin_unlock_irqrestore(&priv
->lock
, flags
);
7605 while (size
&& (PAGE_SIZE
- len
)) {
7606 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7607 PAGE_SIZE
- len
, 1);
7609 if (PAGE_SIZE
- len
)
7613 size
-= min(size
, 16U);
7619 static ssize_t
store_measurement(struct device
*d
,
7620 struct device_attribute
*attr
,
7621 const char *buf
, size_t count
)
7623 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7624 struct ieee80211_measurement_params params
= {
7625 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
7626 .start_time
= cpu_to_le64(priv
->last_tsf
),
7627 .duration
= cpu_to_le16(1),
7629 u8 type
= IWL_MEASURE_BASIC
;
7635 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
7636 channel
= simple_strtoul(p
, NULL
, 0);
7638 params
.channel
= channel
;
7641 while (*p
&& *p
!= ' ')
7644 type
= simple_strtoul(p
+ 1, NULL
, 0);
7647 IWL_DEBUG_INFO("Invoking measurement of type %d on "
7648 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
7649 iwl4965_get_measurement(priv
, ¶ms
, type
);
7654 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
7655 show_measurement
, store_measurement
);
7656 #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
7658 static ssize_t
store_retry_rate(struct device
*d
,
7659 struct device_attribute
*attr
,
7660 const char *buf
, size_t count
)
7662 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7664 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
7665 if (priv
->retry_rate
<= 0)
7666 priv
->retry_rate
= 1;
7671 static ssize_t
show_retry_rate(struct device
*d
,
7672 struct device_attribute
*attr
, char *buf
)
7674 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7675 return sprintf(buf
, "%d", priv
->retry_rate
);
7678 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
7681 static ssize_t
store_power_level(struct device
*d
,
7682 struct device_attribute
*attr
,
7683 const char *buf
, size_t count
)
7685 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7689 mode
= simple_strtoul(buf
, NULL
, 0);
7690 mutex_lock(&priv
->mutex
);
7692 if (!iwl4965_is_ready(priv
)) {
7697 if ((mode
< 1) || (mode
> IWL_POWER_LIMIT
) || (mode
== IWL_POWER_AC
))
7698 mode
= IWL_POWER_AC
;
7700 mode
|= IWL_POWER_ENABLED
;
7702 if (mode
!= priv
->power_mode
) {
7703 rc
= iwl4965_send_power_mode(priv
, IWL_POWER_LEVEL(mode
));
7705 IWL_DEBUG_MAC80211("failed setting power mode.\n");
7708 priv
->power_mode
= mode
;
7714 mutex_unlock(&priv
->mutex
);
7718 #define MAX_WX_STRING 80
7720 /* Values are in microsecond */
7721 static const s32 timeout_duration
[] = {
7728 static const s32 period_duration
[] = {
7736 static ssize_t
show_power_level(struct device
*d
,
7737 struct device_attribute
*attr
, char *buf
)
7739 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7740 int level
= IWL_POWER_LEVEL(priv
->power_mode
);
7743 p
+= sprintf(p
, "%d ", level
);
7745 case IWL_POWER_MODE_CAM
:
7747 p
+= sprintf(p
, "(AC)");
7749 case IWL_POWER_BATTERY
:
7750 p
+= sprintf(p
, "(BATTERY)");
7754 "(Timeout %dms, Period %dms)",
7755 timeout_duration
[level
- 1] / 1000,
7756 period_duration
[level
- 1] / 1000);
7759 if (!(priv
->power_mode
& IWL_POWER_ENABLED
))
7760 p
+= sprintf(p
, " OFF\n");
7762 p
+= sprintf(p
, " \n");
7764 return (p
- buf
+ 1);
7768 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
7771 static ssize_t
show_channels(struct device
*d
,
7772 struct device_attribute
*attr
, char *buf
)
7774 /* all this shit doesn't belong into sysfs anyway */
7778 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
7780 static ssize_t
show_statistics(struct device
*d
,
7781 struct device_attribute
*attr
, char *buf
)
7783 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7784 u32 size
= sizeof(struct iwl4965_notif_statistics
);
7785 u32 len
= 0, ofs
= 0;
7786 u8
*data
= (u8
*) & priv
->statistics
;
7789 if (!iwl4965_is_alive(priv
))
7792 mutex_lock(&priv
->mutex
);
7793 rc
= iwl4965_send_statistics_request(priv
);
7794 mutex_unlock(&priv
->mutex
);
7798 "Error sending statistics request: 0x%08X\n", rc
);
7802 while (size
&& (PAGE_SIZE
- len
)) {
7803 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7804 PAGE_SIZE
- len
, 1);
7806 if (PAGE_SIZE
- len
)
7810 size
-= min(size
, 16U);
7816 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
7818 static ssize_t
show_antenna(struct device
*d
,
7819 struct device_attribute
*attr
, char *buf
)
7821 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7823 if (!iwl4965_is_alive(priv
))
7826 return sprintf(buf
, "%d\n", priv
->antenna
);
7829 static ssize_t
store_antenna(struct device
*d
,
7830 struct device_attribute
*attr
,
7831 const char *buf
, size_t count
)
7834 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7839 if (sscanf(buf
, "%1i", &ant
) != 1) {
7840 IWL_DEBUG_INFO("not in hex or decimal form.\n");
7844 if ((ant
>= 0) && (ant
<= 2)) {
7845 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant
);
7846 priv
->antenna
= (enum iwl4965_antenna
)ant
;
7848 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant
);
7854 static DEVICE_ATTR(antenna
, S_IWUSR
| S_IRUGO
, show_antenna
, store_antenna
);
7856 static ssize_t
show_status(struct device
*d
,
7857 struct device_attribute
*attr
, char *buf
)
7859 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7860 if (!iwl4965_is_alive(priv
))
7862 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
7865 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
7867 static ssize_t
dump_error_log(struct device
*d
,
7868 struct device_attribute
*attr
,
7869 const char *buf
, size_t count
)
7871 char *p
= (char *)buf
;
7874 iwl4965_dump_nic_error_log((struct iwl_priv
*)d
->driver_data
);
7876 return strnlen(buf
, count
);
7879 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
7881 static ssize_t
dump_event_log(struct device
*d
,
7882 struct device_attribute
*attr
,
7883 const char *buf
, size_t count
)
7885 char *p
= (char *)buf
;
7888 iwl4965_dump_nic_event_log((struct iwl_priv
*)d
->driver_data
);
7890 return strnlen(buf
, count
);
7893 static DEVICE_ATTR(dump_events
, S_IWUSR
, NULL
, dump_event_log
);
7895 /*****************************************************************************
7897 * driver setup and teardown
7899 *****************************************************************************/
7901 static void iwl4965_setup_deferred_work(struct iwl_priv
*priv
)
7903 priv
->workqueue
= create_workqueue(DRV_NAME
);
7905 init_waitqueue_head(&priv
->wait_command_queue
);
7907 INIT_WORK(&priv
->up
, iwl4965_bg_up
);
7908 INIT_WORK(&priv
->restart
, iwl4965_bg_restart
);
7909 INIT_WORK(&priv
->rx_replenish
, iwl4965_bg_rx_replenish
);
7910 INIT_WORK(&priv
->scan_completed
, iwl4965_bg_scan_completed
);
7911 INIT_WORK(&priv
->request_scan
, iwl4965_bg_request_scan
);
7912 INIT_WORK(&priv
->abort_scan
, iwl4965_bg_abort_scan
);
7913 INIT_WORK(&priv
->rf_kill
, iwl4965_bg_rf_kill
);
7914 INIT_WORK(&priv
->beacon_update
, iwl4965_bg_beacon_update
);
7915 INIT_DELAYED_WORK(&priv
->post_associate
, iwl4965_bg_post_associate
);
7916 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl4965_bg_init_alive_start
);
7917 INIT_DELAYED_WORK(&priv
->alive_start
, iwl4965_bg_alive_start
);
7918 INIT_DELAYED_WORK(&priv
->scan_check
, iwl4965_bg_scan_check
);
7920 iwl4965_hw_setup_deferred_work(priv
);
7922 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
7923 iwl4965_irq_tasklet
, (unsigned long)priv
);
7926 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
)
7928 iwl4965_hw_cancel_deferred_work(priv
);
7930 cancel_delayed_work_sync(&priv
->init_alive_start
);
7931 cancel_delayed_work(&priv
->scan_check
);
7932 cancel_delayed_work(&priv
->alive_start
);
7933 cancel_delayed_work(&priv
->post_associate
);
7934 cancel_work_sync(&priv
->beacon_update
);
7937 static struct attribute
*iwl4965_sysfs_entries
[] = {
7938 &dev_attr_antenna
.attr
,
7939 &dev_attr_channels
.attr
,
7940 &dev_attr_dump_errors
.attr
,
7941 &dev_attr_dump_events
.attr
,
7942 &dev_attr_flags
.attr
,
7943 &dev_attr_filter_flags
.attr
,
7944 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
7945 &dev_attr_measurement
.attr
,
7947 &dev_attr_power_level
.attr
,
7948 &dev_attr_retry_rate
.attr
,
7949 &dev_attr_rf_kill
.attr
,
7950 &dev_attr_rs_window
.attr
,
7951 &dev_attr_statistics
.attr
,
7952 &dev_attr_status
.attr
,
7953 &dev_attr_temperature
.attr
,
7954 &dev_attr_tx_power
.attr
,
7959 static struct attribute_group iwl4965_attribute_group
= {
7960 .name
= NULL
, /* put in device directory */
7961 .attrs
= iwl4965_sysfs_entries
,
7964 static struct ieee80211_ops iwl4965_hw_ops
= {
7965 .tx
= iwl4965_mac_tx
,
7966 .start
= iwl4965_mac_start
,
7967 .stop
= iwl4965_mac_stop
,
7968 .add_interface
= iwl4965_mac_add_interface
,
7969 .remove_interface
= iwl4965_mac_remove_interface
,
7970 .config
= iwl4965_mac_config
,
7971 .config_interface
= iwl4965_mac_config_interface
,
7972 .configure_filter
= iwl4965_configure_filter
,
7973 .set_key
= iwl4965_mac_set_key
,
7974 .update_tkip_key
= iwl4965_mac_update_tkip_key
,
7975 .get_stats
= iwl4965_mac_get_stats
,
7976 .get_tx_stats
= iwl4965_mac_get_tx_stats
,
7977 .conf_tx
= iwl4965_mac_conf_tx
,
7978 .get_tsf
= iwl4965_mac_get_tsf
,
7979 .reset_tsf
= iwl4965_mac_reset_tsf
,
7980 .beacon_update
= iwl4965_mac_beacon_update
,
7981 .bss_info_changed
= iwl4965_bss_info_changed
,
7982 #ifdef CONFIG_IWL4965_HT
7983 .conf_ht
= iwl4965_mac_conf_ht
,
7984 .ampdu_action
= iwl4965_mac_ampdu_action
,
7985 #endif /* CONFIG_IWL4965_HT */
7986 .hw_scan
= iwl4965_mac_hw_scan
7989 static int iwl4965_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
7992 struct iwl_priv
*priv
;
7993 struct ieee80211_hw
*hw
;
7994 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
7995 DECLARE_MAC_BUF(mac
);
7997 /************************
7998 * 1. Allocating HW data
7999 ************************/
8001 /* Disabling hardware scan means that mac80211 will perform scans
8002 * "the hard way", rather than using device's scan. */
8003 if (cfg
->mod_params
->disable_hw_scan
) {
8004 IWL_DEBUG_INFO("Disabling hw_scan\n");
8005 iwl4965_hw_ops
.hw_scan
= NULL
;
8008 hw
= iwl_alloc_all(cfg
, &iwl4965_hw_ops
);
8014 /* At this point both hw and priv are allocated. */
8016 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
8018 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
8020 priv
->pci_dev
= pdev
;
8022 #ifdef CONFIG_IWLWIFI_DEBUG
8023 iwl_debug_level
= priv
->cfg
->mod_params
->debug
;
8024 atomic_set(&priv
->restrict_refcnt
, 0);
8027 /**************************
8028 * 2. Initializing PCI bus
8029 **************************/
8030 if (pci_enable_device(pdev
)) {
8032 goto out_ieee80211_free_hw
;
8035 pci_set_master(pdev
);
8037 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
8039 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
8041 printk(KERN_WARNING DRV_NAME
8042 ": No suitable DMA available.\n");
8043 goto out_pci_disable_device
;
8046 err
= pci_request_regions(pdev
, DRV_NAME
);
8048 goto out_pci_disable_device
;
8050 pci_set_drvdata(pdev
, priv
);
8052 /* We disable the RETRY_TIMEOUT register (0x41) to keep
8053 * PCI Tx retries from interfering with C3 CPU state */
8054 pci_write_config_byte(pdev
, 0x41, 0x00);
8056 /***********************
8057 * 3. Read REV register
8058 ***********************/
8059 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
8060 if (!priv
->hw_base
) {
8062 goto out_pci_release_regions
;
8065 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
8066 (unsigned long long) pci_resource_len(pdev
, 0));
8067 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
8069 printk(KERN_INFO DRV_NAME
8070 ": Detected Intel Wireless WiFi Link %s\n", priv
->cfg
->name
);
8076 iwl4965_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
8077 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER
);
8079 iwl4965_set_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
8080 err
= iwl4965_poll_bit(priv
, CSR_GP_CNTRL
,
8081 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
,
8082 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
, 25000);
8084 IWL_DEBUG_INFO("Failed to init the card\n");
8087 /* Read the EEPROM */
8088 err
= iwl_eeprom_init(priv
);
8090 IWL_ERROR("Unable to init EEPROM\n");
8093 /* MAC Address location in EEPROM same for 3945/4965 */
8094 iwl_eeprom_get_mac(priv
, priv
->mac_addr
);
8095 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac
, priv
->mac_addr
));
8096 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
8098 /************************
8099 * 5. Setup HW constants
8100 ************************/
8101 /* Device-specific setup */
8102 if (iwl4965_hw_set_hw_setting(priv
)) {
8103 IWL_ERROR("failed to set hw settings\n");
8107 /*******************
8109 *******************/
8111 err
= iwl_setup(priv
);
8113 goto out_unset_hw_settings
;
8114 /* At this point both hw and priv are initialized. */
8116 /**********************************
8117 * 7. Initialize module parameters
8118 **********************************/
8120 /* Disable radio (SW RF KILL) via parameter when loading driver */
8121 if (priv
->cfg
->mod_params
->disable
) {
8122 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
8123 IWL_DEBUG_INFO("Radio disabled.\n");
8126 if (priv
->cfg
->mod_params
->enable_qos
)
8127 priv
->qos_data
.qos_enable
= 1;
8129 /********************
8131 ********************/
8132 iwl4965_disable_interrupts(priv
);
8134 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
8136 IWL_ERROR("failed to create sysfs device attributes\n");
8137 goto out_unset_hw_settings
;
8140 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
8142 IWL_ERROR("failed to create debugfs files\n");
8143 goto out_remove_sysfs
;
8146 iwl4965_setup_deferred_work(priv
);
8147 iwl4965_setup_rx_handlers(priv
);
8149 /********************
8151 ********************/
8152 pci_save_state(pdev
);
8153 pci_disable_device(pdev
);
8158 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
8159 out_unset_hw_settings
:
8160 iwl4965_unset_hw_setting(priv
);
8162 pci_iounmap(pdev
, priv
->hw_base
);
8163 out_pci_release_regions
:
8164 pci_release_regions(pdev
);
8165 pci_set_drvdata(pdev
, NULL
);
8166 out_pci_disable_device
:
8167 pci_disable_device(pdev
);
8168 out_ieee80211_free_hw
:
8169 ieee80211_free_hw(priv
->hw
);
8174 static void iwl4965_pci_remove(struct pci_dev
*pdev
)
8176 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
8177 struct list_head
*p
, *q
;
8183 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
8185 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
8189 /* Free MAC hash list for ADHOC */
8190 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++) {
8191 list_for_each_safe(p
, q
, &priv
->ibss_mac_hash
[i
]) {
8193 kfree(list_entry(p
, struct iwl4965_ibss_seq
, list
));
8197 iwl_dbgfs_unregister(priv
);
8198 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
8200 iwl4965_dealloc_ucode_pci(priv
);
8203 iwl4965_rx_queue_free(priv
, &priv
->rxq
);
8204 iwl4965_hw_txq_ctx_free(priv
);
8206 iwl4965_unset_hw_setting(priv
);
8207 iwlcore_clear_stations_table(priv
);
8209 if (priv
->mac80211_registered
) {
8210 ieee80211_unregister_hw(priv
->hw
);
8211 iwl4965_rate_control_unregister(priv
->hw
);
8214 /*netif_stop_queue(dev); */
8215 flush_workqueue(priv
->workqueue
);
8217 /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
8218 * priv->workqueue... so we can't take down the workqueue
8220 destroy_workqueue(priv
->workqueue
);
8221 priv
->workqueue
= NULL
;
8223 pci_iounmap(pdev
, priv
->hw_base
);
8224 pci_release_regions(pdev
);
8225 pci_disable_device(pdev
);
8226 pci_set_drvdata(pdev
, NULL
);
8228 iwl_free_channel_map(priv
);
8229 iwl4965_free_geos(priv
);
8231 if (priv
->ibss_beacon
)
8232 dev_kfree_skb(priv
->ibss_beacon
);
8234 ieee80211_free_hw(priv
->hw
);
8239 static int iwl4965_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
8241 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
8243 if (priv
->is_open
) {
8244 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8245 iwl4965_mac_stop(priv
->hw
);
8249 pci_set_power_state(pdev
, PCI_D3hot
);
8254 static int iwl4965_pci_resume(struct pci_dev
*pdev
)
8256 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
8258 pci_set_power_state(pdev
, PCI_D0
);
8261 iwl4965_mac_start(priv
->hw
);
8263 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8267 #endif /* CONFIG_PM */
8269 /*****************************************************************************
8271 * driver and module entry point
8273 *****************************************************************************/
8275 static struct pci_driver iwl4965_driver
= {
8277 .id_table
= iwl4965_hw_card_ids
,
8278 .probe
= iwl4965_pci_probe
,
8279 .remove
= __devexit_p(iwl4965_pci_remove
),
8281 .suspend
= iwl4965_pci_suspend
,
8282 .resume
= iwl4965_pci_resume
,
8286 static int __init
iwl4965_init(void)
8290 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
8291 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
8292 ret
= pci_register_driver(&iwl4965_driver
);
8294 IWL_ERROR("Unable to initialize PCI module\n");
8297 #ifdef CONFIG_IWLWIFI_DEBUG
8298 ret
= driver_create_file(&iwl4965_driver
.driver
, &driver_attr_debug_level
);
8300 IWL_ERROR("Unable to create driver sysfs file\n");
8301 pci_unregister_driver(&iwl4965_driver
);
8309 static void __exit
iwl4965_exit(void)
8311 #ifdef CONFIG_IWLWIFI_DEBUG
8312 driver_remove_file(&iwl4965_driver
.driver
, &driver_attr_debug_level
);
8314 pci_unregister_driver(&iwl4965_driver
);
8317 module_exit(iwl4965_exit
);
8318 module_init(iwl4965_init
);