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;
2245 cmd
->cmd
.tx
.driver_txop
= 0;
2246 cmd
->cmd
.tx
.tx_flags
= tx_flags
;
2247 cmd
->cmd
.tx
.next_frame_len
= 0;
2249 static void iwl_update_tx_stats(struct iwl_priv
*priv
, u16 fc
, u16 len
)
2251 /* 0 - mgmt, 1 - cnt, 2 - data */
2252 int idx
= (fc
& IEEE80211_FCTL_FTYPE
) >> 2;
2253 priv
->tx_stats
[idx
].cnt
++;
2254 priv
->tx_stats
[idx
].bytes
+= len
;
2257 * iwl4965_get_sta_id - Find station's index within station table
2259 * If new IBSS station, create new entry in station table
2261 static int iwl4965_get_sta_id(struct iwl_priv
*priv
,
2262 struct ieee80211_hdr
*hdr
)
2265 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2266 DECLARE_MAC_BUF(mac
);
2268 /* If this frame is broadcast or management, use broadcast station id */
2269 if (((fc
& IEEE80211_FCTL_FTYPE
) != IEEE80211_FTYPE_DATA
) ||
2270 is_multicast_ether_addr(hdr
->addr1
))
2271 return priv
->hw_setting
.bcast_sta_id
;
2273 switch (priv
->iw_mode
) {
2275 /* If we are a client station in a BSS network, use the special
2276 * AP station entry (that's the only station we communicate with) */
2277 case IEEE80211_IF_TYPE_STA
:
2280 /* If we are an AP, then find the station, or use BCAST */
2281 case IEEE80211_IF_TYPE_AP
:
2282 sta_id
= iwl4965_hw_find_station(priv
, hdr
->addr1
);
2283 if (sta_id
!= IWL_INVALID_STATION
)
2285 return priv
->hw_setting
.bcast_sta_id
;
2287 /* If this frame is going out to an IBSS network, find the station,
2288 * or create a new station table entry */
2289 case IEEE80211_IF_TYPE_IBSS
:
2290 sta_id
= iwl4965_hw_find_station(priv
, hdr
->addr1
);
2291 if (sta_id
!= IWL_INVALID_STATION
)
2294 /* Create new station table entry */
2295 sta_id
= iwl4965_add_station_flags(priv
, hdr
->addr1
,
2296 0, CMD_ASYNC
, NULL
);
2298 if (sta_id
!= IWL_INVALID_STATION
)
2301 IWL_DEBUG_DROP("Station %s not in station map. "
2302 "Defaulting to broadcast...\n",
2303 print_mac(mac
, hdr
->addr1
));
2304 iwl_print_hex_dump(IWL_DL_DROP
, (u8
*) hdr
, sizeof(*hdr
));
2305 return priv
->hw_setting
.bcast_sta_id
;
2308 IWL_WARNING("Unknown mode of operation: %d", priv
->iw_mode
);
2309 return priv
->hw_setting
.bcast_sta_id
;
2314 * start REPLY_TX command process
2316 static int iwl4965_tx_skb(struct iwl_priv
*priv
,
2317 struct sk_buff
*skb
, struct ieee80211_tx_control
*ctl
)
2319 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
2320 struct iwl4965_tfd_frame
*tfd
;
2322 int txq_id
= ctl
->queue
;
2323 struct iwl4965_tx_queue
*txq
= NULL
;
2324 struct iwl4965_queue
*q
= NULL
;
2325 dma_addr_t phys_addr
;
2326 dma_addr_t txcmd_phys
;
2327 dma_addr_t scratch_phys
;
2328 struct iwl_cmd
*out_cmd
= NULL
;
2329 u16 len
, idx
, len_org
;
2330 u8 id
, hdr_len
, unicast
;
2335 u8 wait_write_ptr
= 0;
2336 unsigned long flags
;
2339 spin_lock_irqsave(&priv
->lock
, flags
);
2340 if (iwl4965_is_rfkill(priv
)) {
2341 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2346 IWL_DEBUG_DROP("Dropping - !priv->vif\n");
2350 if ((ctl
->tx_rate
->hw_value
& 0xFF) == IWL_INVALID_RATE
) {
2351 IWL_ERROR("ERROR: No TX rate available.\n");
2355 unicast
= !is_multicast_ether_addr(hdr
->addr1
);
2358 fc
= le16_to_cpu(hdr
->frame_control
);
2360 #ifdef CONFIG_IWLWIFI_DEBUG
2361 if (ieee80211_is_auth(fc
))
2362 IWL_DEBUG_TX("Sending AUTH frame\n");
2363 else if (ieee80211_is_assoc_request(fc
))
2364 IWL_DEBUG_TX("Sending ASSOC frame\n");
2365 else if (ieee80211_is_reassoc_request(fc
))
2366 IWL_DEBUG_TX("Sending REASSOC frame\n");
2369 /* drop all data frame if we are not associated */
2370 if (((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_DATA
) &&
2371 (!iwl4965_is_associated(priv
) ||
2372 ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && !priv
->assoc_id
) ||
2373 !priv
->assoc_station_added
)) {
2374 IWL_DEBUG_DROP("Dropping - !iwl4965_is_associated\n");
2378 spin_unlock_irqrestore(&priv
->lock
, flags
);
2380 hdr_len
= ieee80211_get_hdrlen(fc
);
2382 /* Find (or create) index into station table for destination station */
2383 sta_id
= iwl4965_get_sta_id(priv
, hdr
);
2384 if (sta_id
== IWL_INVALID_STATION
) {
2385 DECLARE_MAC_BUF(mac
);
2387 IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
2388 print_mac(mac
, hdr
->addr1
));
2392 IWL_DEBUG_RATE("station Id %d\n", sta_id
);
2394 qc
= ieee80211_get_qos_ctrl(hdr
);
2396 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2397 seq_number
= priv
->stations
[sta_id
].tid
[tid
].seq_number
&
2399 hdr
->seq_ctrl
= cpu_to_le16(seq_number
) |
2401 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG
));
2403 #ifdef CONFIG_IWL4965_HT
2404 /* aggregation is on for this <sta,tid> */
2405 if (ctl
->flags
& IEEE80211_TXCTL_AMPDU
)
2406 txq_id
= priv
->stations
[sta_id
].tid
[tid
].agg
.txq_id
;
2407 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
++;
2408 #endif /* CONFIG_IWL4965_HT */
2411 /* Descriptor for chosen Tx queue */
2412 txq
= &priv
->txq
[txq_id
];
2415 spin_lock_irqsave(&priv
->lock
, flags
);
2417 /* Set up first empty TFD within this queue's circular TFD buffer */
2418 tfd
= &txq
->bd
[q
->write_ptr
];
2419 memset(tfd
, 0, sizeof(*tfd
));
2420 control_flags
= (u32
*) tfd
;
2421 idx
= get_cmd_index(q
, q
->write_ptr
, 0);
2423 /* Set up driver data for this TFD */
2424 memset(&(txq
->txb
[q
->write_ptr
]), 0, sizeof(struct iwl4965_tx_info
));
2425 txq
->txb
[q
->write_ptr
].skb
[0] = skb
;
2426 memcpy(&(txq
->txb
[q
->write_ptr
].status
.control
),
2427 ctl
, sizeof(struct ieee80211_tx_control
));
2429 /* Set up first empty entry in queue's array of Tx/cmd buffers */
2430 out_cmd
= &txq
->cmd
[idx
];
2431 memset(&out_cmd
->hdr
, 0, sizeof(out_cmd
->hdr
));
2432 memset(&out_cmd
->cmd
.tx
, 0, sizeof(out_cmd
->cmd
.tx
));
2435 * Set up the Tx-command (not MAC!) header.
2436 * Store the chosen Tx queue and TFD index within the sequence field;
2437 * after Tx, uCode's Tx response will return this value so driver can
2438 * locate the frame within the tx queue and do post-tx processing.
2440 out_cmd
->hdr
.cmd
= REPLY_TX
;
2441 out_cmd
->hdr
.sequence
= cpu_to_le16((u16
)(QUEUE_TO_SEQ(txq_id
) |
2442 INDEX_TO_SEQ(q
->write_ptr
)));
2444 /* Copy MAC header from skb into command buffer */
2445 memcpy(out_cmd
->cmd
.tx
.hdr
, hdr
, hdr_len
);
2448 * Use the first empty entry in this queue's command buffer array
2449 * to contain the Tx command and MAC header concatenated together
2450 * (payload data will be in another buffer).
2451 * Size of this varies, due to varying MAC header length.
2452 * If end is not dword aligned, we'll have 2 extra bytes at the end
2453 * of the MAC header (device reads on dword boundaries).
2454 * We'll tell device about this padding later.
2456 len
= priv
->hw_setting
.tx_cmd_len
+
2457 sizeof(struct iwl_cmd_header
) + hdr_len
;
2460 len
= (len
+ 3) & ~3;
2467 /* Physical address of this Tx command's header (not MAC header!),
2468 * within command buffer array. */
2469 txcmd_phys
= txq
->dma_addr_cmd
+ sizeof(struct iwl_cmd
) * idx
+
2470 offsetof(struct iwl_cmd
, hdr
);
2472 /* Add buffer containing Tx command and MAC(!) header to TFD's
2474 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, txcmd_phys
, len
);
2476 if (!(ctl
->flags
& IEEE80211_TXCTL_DO_NOT_ENCRYPT
))
2477 iwl4965_build_tx_cmd_hwcrypto(priv
, ctl
, out_cmd
, skb
, sta_id
);
2479 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2480 * if any (802.11 null frames have no payload). */
2481 len
= skb
->len
- hdr_len
;
2483 phys_addr
= pci_map_single(priv
->pci_dev
, skb
->data
+ hdr_len
,
2484 len
, PCI_DMA_TODEVICE
);
2485 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, len
);
2488 /* Tell 4965 about any 2-byte padding after MAC header */
2490 out_cmd
->cmd
.tx
.tx_flags
|= TX_CMD_FLG_MH_PAD_MSK
;
2492 /* Total # bytes to be transmitted */
2493 len
= (u16
)skb
->len
;
2494 out_cmd
->cmd
.tx
.len
= cpu_to_le16(len
);
2496 /* TODO need this for burst mode later on */
2497 iwl4965_build_tx_cmd_basic(priv
, out_cmd
, ctl
, hdr
, unicast
, sta_id
);
2499 /* set is_hcca to 0; it probably will never be implemented */
2500 iwl4965_hw_build_tx_cmd_rate(priv
, out_cmd
, ctl
, hdr
, sta_id
, 0);
2502 iwl_update_tx_stats(priv
, fc
, len
);
2504 scratch_phys
= txcmd_phys
+ sizeof(struct iwl_cmd_header
) +
2505 offsetof(struct iwl4965_tx_cmd
, scratch
);
2506 out_cmd
->cmd
.tx
.dram_lsb_ptr
= cpu_to_le32(scratch_phys
);
2507 out_cmd
->cmd
.tx
.dram_msb_ptr
= iwl_get_dma_hi_address(scratch_phys
);
2509 if (!ieee80211_get_morefrag(hdr
)) {
2510 txq
->need_update
= 1;
2512 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2513 priv
->stations
[sta_id
].tid
[tid
].seq_number
= seq_number
;
2517 txq
->need_update
= 0;
2520 iwl_print_hex_dump(IWL_DL_TX
, out_cmd
->cmd
.payload
,
2521 sizeof(out_cmd
->cmd
.tx
));
2523 iwl_print_hex_dump(IWL_DL_TX
, (u8
*)out_cmd
->cmd
.tx
.hdr
,
2524 ieee80211_get_hdrlen(fc
));
2526 /* Set up entry for this TFD in Tx byte-count array */
2527 iwl4965_tx_queue_update_wr_ptr(priv
, txq
, len
);
2529 /* Tell device the write index *just past* this latest filled TFD */
2530 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
2531 rc
= iwl4965_tx_queue_update_write_ptr(priv
, txq
);
2532 spin_unlock_irqrestore(&priv
->lock
, flags
);
2537 if ((iwl4965_queue_space(q
) < q
->high_mark
)
2538 && priv
->mac80211_registered
) {
2539 if (wait_write_ptr
) {
2540 spin_lock_irqsave(&priv
->lock
, flags
);
2541 txq
->need_update
= 1;
2542 iwl4965_tx_queue_update_write_ptr(priv
, txq
);
2543 spin_unlock_irqrestore(&priv
->lock
, flags
);
2546 ieee80211_stop_queue(priv
->hw
, ctl
->queue
);
2552 spin_unlock_irqrestore(&priv
->lock
, flags
);
2557 static void iwl4965_set_rate(struct iwl_priv
*priv
)
2559 const struct ieee80211_supported_band
*hw
= NULL
;
2560 struct ieee80211_rate
*rate
;
2563 hw
= iwl4965_get_hw_mode(priv
, priv
->band
);
2565 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
2569 priv
->active_rate
= 0;
2570 priv
->active_rate_basic
= 0;
2572 for (i
= 0; i
< hw
->n_bitrates
; i
++) {
2573 rate
= &(hw
->bitrates
[i
]);
2574 if (rate
->hw_value
< IWL_RATE_COUNT
)
2575 priv
->active_rate
|= (1 << rate
->hw_value
);
2578 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
2579 priv
->active_rate
, priv
->active_rate_basic
);
2582 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
2583 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
2586 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
2587 priv
->staging_rxon
.cck_basic_rates
=
2588 ((priv
->active_rate_basic
&
2589 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
2591 priv
->staging_rxon
.cck_basic_rates
=
2592 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2594 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
2595 priv
->staging_rxon
.ofdm_basic_rates
=
2596 ((priv
->active_rate_basic
&
2597 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
2598 IWL_FIRST_OFDM_RATE
) & 0xFF;
2600 priv
->staging_rxon
.ofdm_basic_rates
=
2601 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2604 static void iwl4965_radio_kill_sw(struct iwl_priv
*priv
, int disable_radio
)
2606 unsigned long flags
;
2608 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
2611 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
2612 disable_radio
? "OFF" : "ON");
2614 if (disable_radio
) {
2615 iwl4965_scan_cancel(priv
);
2616 /* FIXME: This is a workaround for AP */
2617 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
2618 spin_lock_irqsave(&priv
->lock
, flags
);
2619 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2620 CSR_UCODE_SW_BIT_RFKILL
);
2621 spin_unlock_irqrestore(&priv
->lock
, flags
);
2622 iwl4965_send_card_state(priv
, CARD_STATE_CMD_DISABLE
, 0);
2623 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2628 spin_lock_irqsave(&priv
->lock
, flags
);
2629 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2631 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2632 spin_unlock_irqrestore(&priv
->lock
, flags
);
2637 spin_lock_irqsave(&priv
->lock
, flags
);
2638 iwl4965_read32(priv
, CSR_UCODE_DRV_GP1
);
2639 if (!iwl4965_grab_nic_access(priv
))
2640 iwl4965_release_nic_access(priv
);
2641 spin_unlock_irqrestore(&priv
->lock
, flags
);
2643 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
2644 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2645 "disabled by HW switch\n");
2649 queue_work(priv
->workqueue
, &priv
->restart
);
2653 void iwl4965_set_decrypted_flag(struct iwl_priv
*priv
, struct sk_buff
*skb
,
2654 u32 decrypt_res
, struct ieee80211_rx_status
*stats
)
2657 le16_to_cpu(((struct ieee80211_hdr
*)skb
->data
)->frame_control
);
2659 if (priv
->active_rxon
.filter_flags
& RXON_FILTER_DIS_DECRYPT_MSK
)
2662 if (!(fc
& IEEE80211_FCTL_PROTECTED
))
2665 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res
);
2666 switch (decrypt_res
& RX_RES_STATUS_SEC_TYPE_MSK
) {
2667 case RX_RES_STATUS_SEC_TYPE_TKIP
:
2668 /* The uCode has got a bad phase 1 Key, pushes the packet.
2669 * Decryption will be done in SW. */
2670 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2671 RX_RES_STATUS_BAD_KEY_TTAK
)
2674 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2675 RX_RES_STATUS_BAD_ICV_MIC
)
2676 stats
->flag
|= RX_FLAG_MMIC_ERROR
;
2677 case RX_RES_STATUS_SEC_TYPE_WEP
:
2678 case RX_RES_STATUS_SEC_TYPE_CCMP
:
2679 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2680 RX_RES_STATUS_DECRYPT_OK
) {
2681 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
2682 stats
->flag
|= RX_FLAG_DECRYPTED
;
2692 #define IWL_PACKET_RETRY_TIME HZ
2694 int iwl4965_is_duplicate_packet(struct iwl_priv
*priv
, struct ieee80211_hdr
*header
)
2696 u16 sc
= le16_to_cpu(header
->seq_ctrl
);
2697 u16 seq
= (sc
& IEEE80211_SCTL_SEQ
) >> 4;
2698 u16 frag
= sc
& IEEE80211_SCTL_FRAG
;
2699 u16
*last_seq
, *last_frag
;
2700 unsigned long *last_time
;
2702 switch (priv
->iw_mode
) {
2703 case IEEE80211_IF_TYPE_IBSS
:{
2704 struct list_head
*p
;
2705 struct iwl4965_ibss_seq
*entry
= NULL
;
2706 u8
*mac
= header
->addr2
;
2707 int index
= mac
[5] & (IWL_IBSS_MAC_HASH_SIZE
- 1);
2709 __list_for_each(p
, &priv
->ibss_mac_hash
[index
]) {
2710 entry
= list_entry(p
, struct iwl4965_ibss_seq
, list
);
2711 if (!compare_ether_addr(entry
->mac
, mac
))
2714 if (p
== &priv
->ibss_mac_hash
[index
]) {
2715 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
2717 IWL_ERROR("Cannot malloc new mac entry\n");
2720 memcpy(entry
->mac
, mac
, ETH_ALEN
);
2721 entry
->seq_num
= seq
;
2722 entry
->frag_num
= frag
;
2723 entry
->packet_time
= jiffies
;
2724 list_add(&entry
->list
, &priv
->ibss_mac_hash
[index
]);
2727 last_seq
= &entry
->seq_num
;
2728 last_frag
= &entry
->frag_num
;
2729 last_time
= &entry
->packet_time
;
2732 case IEEE80211_IF_TYPE_STA
:
2733 last_seq
= &priv
->last_seq_num
;
2734 last_frag
= &priv
->last_frag_num
;
2735 last_time
= &priv
->last_packet_time
;
2740 if ((*last_seq
== seq
) &&
2741 time_after(*last_time
+ IWL_PACKET_RETRY_TIME
, jiffies
)) {
2742 if (*last_frag
== frag
)
2744 if (*last_frag
+ 1 != frag
)
2745 /* out-of-order fragment */
2751 *last_time
= jiffies
;
2758 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
2760 #include "iwl-spectrum.h"
2762 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
2763 #define BEACON_TIME_MASK_HIGH 0xFF000000
2764 #define TIME_UNIT 1024
2767 * extended beacon time format
2768 * time in usec will be changed into a 32-bit value in 8:24 format
2769 * the high 1 byte is the beacon counts
2770 * the lower 3 bytes is the time in usec within one beacon interval
2773 static u32
iwl4965_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
2777 u32 interval
= beacon_interval
* 1024;
2779 if (!interval
|| !usec
)
2782 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
2783 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
2785 return (quot
<< 24) + rem
;
2788 /* base is usually what we get from ucode with each received frame,
2789 * the same as HW timer counter counting down
2792 static __le32
iwl4965_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
2794 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
2795 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
2796 u32 interval
= beacon_interval
* TIME_UNIT
;
2797 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
2798 (addon
& BEACON_TIME_MASK_HIGH
);
2800 if (base_low
> addon_low
)
2801 res
+= base_low
- addon_low
;
2802 else if (base_low
< addon_low
) {
2803 res
+= interval
+ base_low
- addon_low
;
2808 return cpu_to_le32(res
);
2811 static int iwl4965_get_measurement(struct iwl_priv
*priv
,
2812 struct ieee80211_measurement_params
*params
,
2815 struct iwl4965_spectrum_cmd spectrum
;
2816 struct iwl4965_rx_packet
*res
;
2817 struct iwl_host_cmd cmd
= {
2818 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
2819 .data
= (void *)&spectrum
,
2820 .meta
.flags
= CMD_WANT_SKB
,
2822 u32 add_time
= le64_to_cpu(params
->start_time
);
2824 int spectrum_resp_status
;
2825 int duration
= le16_to_cpu(params
->duration
);
2827 if (iwl4965_is_associated(priv
))
2829 iwl4965_usecs_to_beacons(
2830 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
2831 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2833 memset(&spectrum
, 0, sizeof(spectrum
));
2835 spectrum
.channel_count
= cpu_to_le16(1);
2837 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
2838 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
2839 cmd
.len
= sizeof(spectrum
);
2840 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
2842 if (iwl4965_is_associated(priv
))
2843 spectrum
.start_time
=
2844 iwl4965_add_beacon_time(priv
->last_beacon_time
,
2846 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2848 spectrum
.start_time
= 0;
2850 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
2851 spectrum
.channels
[0].channel
= params
->channel
;
2852 spectrum
.channels
[0].type
= type
;
2853 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
2854 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
2855 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
2857 rc
= iwl_send_cmd_sync(priv
, &cmd
);
2861 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
2862 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
2863 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
2867 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
2868 switch (spectrum_resp_status
) {
2869 case 0: /* Command will be handled */
2870 if (res
->u
.spectrum
.id
!= 0xff) {
2872 ("Replaced existing measurement: %d\n",
2873 res
->u
.spectrum
.id
);
2874 priv
->measurement_status
&= ~MEASUREMENT_READY
;
2876 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
2880 case 1: /* Command will not be handled */
2885 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
2891 static void iwl4965_txstatus_to_ieee(struct iwl_priv
*priv
,
2892 struct iwl4965_tx_info
*tx_sta
)
2895 tx_sta
->status
.ack_signal
= 0;
2896 tx_sta
->status
.excessive_retries
= 0;
2897 tx_sta
->status
.queue_length
= 0;
2898 tx_sta
->status
.queue_number
= 0;
2901 ieee80211_tx_status_irqsafe(priv
->hw
,
2902 tx_sta
->skb
[0], &(tx_sta
->status
));
2904 ieee80211_tx_status(priv
->hw
,
2905 tx_sta
->skb
[0], &(tx_sta
->status
));
2907 tx_sta
->skb
[0] = NULL
;
2911 * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
2913 * When FW advances 'R' index, all entries between old and new 'R' index
2914 * need to be reclaimed. As result, some free space forms. If there is
2915 * enough free space (> low mark), wake the stack that feeds us.
2917 int iwl4965_tx_queue_reclaim(struct iwl_priv
*priv
, int txq_id
, int index
)
2919 struct iwl4965_tx_queue
*txq
= &priv
->txq
[txq_id
];
2920 struct iwl4965_queue
*q
= &txq
->q
;
2923 if ((index
>= q
->n_bd
) || (x2_queue_used(q
, index
) == 0)) {
2924 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
2925 "is out of range [0-%d] %d %d.\n", txq_id
,
2926 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
2930 for (index
= iwl_queue_inc_wrap(index
, q
->n_bd
);
2931 q
->read_ptr
!= index
;
2932 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
2933 if (txq_id
!= IWL_CMD_QUEUE_NUM
) {
2934 iwl4965_txstatus_to_ieee(priv
,
2935 &(txq
->txb
[txq
->q
.read_ptr
]));
2936 iwl4965_hw_txq_free_tfd(priv
, txq
);
2937 } else if (nfreed
> 1) {
2938 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index
,
2939 q
->write_ptr
, q
->read_ptr
);
2940 queue_work(priv
->workqueue
, &priv
->restart
);
2945 /* if (iwl4965_queue_space(q) > q->low_mark && (txq_id >= 0) &&
2946 (txq_id != IWL_CMD_QUEUE_NUM) &&
2947 priv->mac80211_registered)
2948 ieee80211_wake_queue(priv->hw, txq_id); */
2954 static int iwl4965_is_tx_success(u32 status
)
2956 status
&= TX_STATUS_MSK
;
2957 return (status
== TX_STATUS_SUCCESS
)
2958 || (status
== TX_STATUS_DIRECT_DONE
);
2961 /******************************************************************************
2963 * Generic RX handler implementations
2965 ******************************************************************************/
2966 #ifdef CONFIG_IWL4965_HT
2968 static inline int iwl4965_get_ra_sta_id(struct iwl_priv
*priv
,
2969 struct ieee80211_hdr
*hdr
)
2971 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)
2974 u8
*da
= ieee80211_get_DA(hdr
);
2975 return iwl4965_hw_find_station(priv
, da
);
2979 static struct ieee80211_hdr
*iwl4965_tx_queue_get_hdr(
2980 struct iwl_priv
*priv
, int txq_id
, int idx
)
2982 if (priv
->txq
[txq_id
].txb
[idx
].skb
[0])
2983 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
2984 txb
[idx
].skb
[0]->data
;
2988 static inline u32
iwl4965_get_scd_ssn(struct iwl4965_tx_resp
*tx_resp
)
2990 __le32
*scd_ssn
= (__le32
*)((u32
*)&tx_resp
->status
+
2991 tx_resp
->frame_count
);
2992 return le32_to_cpu(*scd_ssn
) & MAX_SN
;
2997 * iwl4965_tx_status_reply_tx - Handle Tx rspnse for frames in aggregation queue
2999 static int iwl4965_tx_status_reply_tx(struct iwl_priv
*priv
,
3000 struct iwl4965_ht_agg
*agg
,
3001 struct iwl4965_tx_resp_agg
*tx_resp
,
3005 struct agg_tx_status
*frame_status
= &tx_resp
->status
;
3006 struct ieee80211_tx_status
*tx_status
= NULL
;
3007 struct ieee80211_hdr
*hdr
= NULL
;
3012 if (agg
->wait_for_ba
)
3013 IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
3015 agg
->frame_count
= tx_resp
->frame_count
;
3016 agg
->start_idx
= start_idx
;
3017 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
3020 /* # frames attempted by Tx command */
3021 if (agg
->frame_count
== 1) {
3022 /* Only one frame was attempted; no block-ack will arrive */
3023 status
= le16_to_cpu(frame_status
[0].status
);
3024 seq
= le16_to_cpu(frame_status
[0].sequence
);
3025 idx
= SEQ_TO_INDEX(seq
);
3026 txq_id
= SEQ_TO_QUEUE(seq
);
3028 /* FIXME: code repetition */
3029 IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
3030 agg
->frame_count
, agg
->start_idx
, idx
);
3032 tx_status
= &(priv
->txq
[txq_id
].txb
[idx
].status
);
3033 tx_status
->retry_count
= tx_resp
->failure_frame
;
3034 tx_status
->queue_number
= status
& 0xff;
3035 tx_status
->queue_length
= tx_resp
->failure_rts
;
3036 tx_status
->control
.flags
&= ~IEEE80211_TXCTL_AMPDU
;
3037 tx_status
->flags
= iwl4965_is_tx_success(status
)?
3038 IEEE80211_TX_STATUS_ACK
: 0;
3039 iwl4965_hwrate_to_tx_control(priv
,
3040 le32_to_cpu(tx_resp
->rate_n_flags
),
3041 &tx_status
->control
);
3042 /* FIXME: code repetition end */
3044 IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
3045 status
& 0xff, tx_resp
->failure_frame
);
3046 IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n",
3047 iwl4965_hw_get_rate_n_flags(tx_resp
->rate_n_flags
));
3049 agg
->wait_for_ba
= 0;
3051 /* Two or more frames were attempted; expect block-ack */
3053 int start
= agg
->start_idx
;
3055 /* Construct bit-map of pending frames within Tx window */
3056 for (i
= 0; i
< agg
->frame_count
; i
++) {
3058 status
= le16_to_cpu(frame_status
[i
].status
);
3059 seq
= le16_to_cpu(frame_status
[i
].sequence
);
3060 idx
= SEQ_TO_INDEX(seq
);
3061 txq_id
= SEQ_TO_QUEUE(seq
);
3063 if (status
& (AGG_TX_STATE_FEW_BYTES_MSK
|
3064 AGG_TX_STATE_ABORT_MSK
))
3067 IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
3068 agg
->frame_count
, txq_id
, idx
);
3070 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, idx
);
3072 sc
= le16_to_cpu(hdr
->seq_ctrl
);
3073 if (idx
!= (SEQ_TO_SN(sc
) & 0xff)) {
3074 IWL_ERROR("BUG_ON idx doesn't match seq control"
3075 " idx=%d, seq_idx=%d, seq=%d\n",
3081 IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n",
3082 i
, idx
, SEQ_TO_SN(sc
));
3086 sh
= (start
- idx
) + 0xff;
3087 bitmap
= bitmap
<< sh
;
3090 } else if (sh
< -64)
3091 sh
= 0xff - (start
- idx
);
3095 bitmap
= bitmap
<< sh
;
3098 bitmap
|= (1 << sh
);
3099 IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n",
3100 start
, (u32
)(bitmap
& 0xFFFFFFFF));
3103 agg
->bitmap
= bitmap
;
3104 agg
->start_idx
= start
;
3105 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
3106 IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n",
3107 agg
->frame_count
, agg
->start_idx
,
3111 agg
->wait_for_ba
= 1;
3118 * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response
3120 static void iwl4965_rx_reply_tx(struct iwl_priv
*priv
,
3121 struct iwl4965_rx_mem_buffer
*rxb
)
3123 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3124 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3125 int txq_id
= SEQ_TO_QUEUE(sequence
);
3126 int index
= SEQ_TO_INDEX(sequence
);
3127 struct iwl4965_tx_queue
*txq
= &priv
->txq
[txq_id
];
3128 struct ieee80211_tx_status
*tx_status
;
3129 struct iwl4965_tx_resp
*tx_resp
= (void *)&pkt
->u
.raw
[0];
3130 u32 status
= le32_to_cpu(tx_resp
->status
);
3131 #ifdef CONFIG_IWL4965_HT
3132 int tid
= MAX_TID_COUNT
, sta_id
= IWL_INVALID_STATION
;
3133 struct ieee80211_hdr
*hdr
;
3137 if ((index
>= txq
->q
.n_bd
) || (x2_queue_used(&txq
->q
, index
) == 0)) {
3138 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
3139 "is out of range [0-%d] %d %d\n", txq_id
,
3140 index
, txq
->q
.n_bd
, txq
->q
.write_ptr
,
3145 #ifdef CONFIG_IWL4965_HT
3146 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, index
);
3147 qc
= ieee80211_get_qos_ctrl(hdr
);
3150 tid
= le16_to_cpu(*qc
) & 0xf;
3152 sta_id
= iwl4965_get_ra_sta_id(priv
, hdr
);
3153 if (txq
->sched_retry
&& unlikely(sta_id
== IWL_INVALID_STATION
)) {
3154 IWL_ERROR("Station not known\n");
3158 if (txq
->sched_retry
) {
3159 const u32 scd_ssn
= iwl4965_get_scd_ssn(tx_resp
);
3160 struct iwl4965_ht_agg
*agg
= NULL
;
3165 agg
= &priv
->stations
[sta_id
].tid
[tid
].agg
;
3167 iwl4965_tx_status_reply_tx(priv
, agg
,
3168 (struct iwl4965_tx_resp_agg
*)tx_resp
, index
);
3170 if ((tx_resp
->frame_count
== 1) &&
3171 !iwl4965_is_tx_success(status
)) {
3172 /* TODO: send BAR */
3175 if (txq
->q
.read_ptr
!= (scd_ssn
& 0xff)) {
3177 index
= iwl_queue_dec_wrap(scd_ssn
& 0xff, txq
->q
.n_bd
);
3178 IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
3179 "%d index %d\n", scd_ssn
, index
);
3180 freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3181 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
3183 if (iwl4965_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
3184 txq_id
>= 0 && priv
->mac80211_registered
&&
3185 agg
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
3186 ieee80211_wake_queue(priv
->hw
, txq_id
);
3188 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
3191 #endif /* CONFIG_IWL4965_HT */
3192 tx_status
= &(txq
->txb
[txq
->q
.read_ptr
].status
);
3194 tx_status
->retry_count
= tx_resp
->failure_frame
;
3195 tx_status
->queue_number
= status
;
3196 tx_status
->queue_length
= tx_resp
->bt_kill_count
;
3197 tx_status
->queue_length
|= tx_resp
->failure_rts
;
3199 iwl4965_is_tx_success(status
) ? IEEE80211_TX_STATUS_ACK
: 0;
3200 iwl4965_hwrate_to_tx_control(priv
, le32_to_cpu(tx_resp
->rate_n_flags
),
3201 &tx_status
->control
);
3203 IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags 0x%x "
3204 "retries %d\n", txq_id
, iwl4965_get_tx_fail_reason(status
),
3205 status
, le32_to_cpu(tx_resp
->rate_n_flags
),
3206 tx_resp
->failure_frame
);
3208 IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index
);
3210 int freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3211 #ifdef CONFIG_IWL4965_HT
3212 if (tid
!= MAX_TID_COUNT
)
3213 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
3214 if (iwl4965_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
3216 priv
->mac80211_registered
)
3217 ieee80211_wake_queue(priv
->hw
, txq_id
);
3218 if (tid
!= MAX_TID_COUNT
)
3219 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
3222 #ifdef CONFIG_IWL4965_HT
3224 #endif /* CONFIG_IWL4965_HT */
3226 if (iwl_check_bits(status
, TX_ABORT_REQUIRED_MSK
))
3227 IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
3231 static void iwl4965_rx_reply_alive(struct iwl_priv
*priv
,
3232 struct iwl4965_rx_mem_buffer
*rxb
)
3234 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3235 struct iwl4965_alive_resp
*palive
;
3236 struct delayed_work
*pwork
;
3238 palive
= &pkt
->u
.alive_frame
;
3240 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
3242 palive
->is_valid
, palive
->ver_type
,
3243 palive
->ver_subtype
);
3245 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
3246 IWL_DEBUG_INFO("Initialization Alive received.\n");
3247 memcpy(&priv
->card_alive_init
,
3248 &pkt
->u
.alive_frame
,
3249 sizeof(struct iwl4965_init_alive_resp
));
3250 pwork
= &priv
->init_alive_start
;
3252 IWL_DEBUG_INFO("Runtime Alive received.\n");
3253 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
3254 sizeof(struct iwl4965_alive_resp
));
3255 pwork
= &priv
->alive_start
;
3258 /* We delay the ALIVE response by 5ms to
3259 * give the HW RF Kill time to activate... */
3260 if (palive
->is_valid
== UCODE_VALID_OK
)
3261 queue_delayed_work(priv
->workqueue
, pwork
,
3262 msecs_to_jiffies(5));
3264 IWL_WARNING("uCode did not respond OK.\n");
3267 static void iwl4965_rx_reply_add_sta(struct iwl_priv
*priv
,
3268 struct iwl4965_rx_mem_buffer
*rxb
)
3270 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3272 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
3276 static void iwl4965_rx_reply_error(struct iwl_priv
*priv
,
3277 struct iwl4965_rx_mem_buffer
*rxb
)
3279 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3281 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
3282 "seq 0x%04X ser 0x%08X\n",
3283 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
3284 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
3285 pkt
->u
.err_resp
.cmd_id
,
3286 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
3287 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
3290 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
3292 static void iwl4965_rx_csa(struct iwl_priv
*priv
, struct iwl4965_rx_mem_buffer
*rxb
)
3294 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3295 struct iwl4965_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
3296 struct iwl4965_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
3297 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
3298 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
3299 rxon
->channel
= csa
->channel
;
3300 priv
->staging_rxon
.channel
= csa
->channel
;
3303 static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv
*priv
,
3304 struct iwl4965_rx_mem_buffer
*rxb
)
3306 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
3307 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3308 struct iwl4965_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
3310 if (!report
->state
) {
3311 IWL_DEBUG(IWL_DL_11H
| IWL_DL_INFO
,
3312 "Spectrum Measure Notification: Start\n");
3316 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
3317 priv
->measurement_status
|= MEASUREMENT_READY
;
3321 static void iwl4965_rx_pm_sleep_notif(struct iwl_priv
*priv
,
3322 struct iwl4965_rx_mem_buffer
*rxb
)
3324 #ifdef CONFIG_IWLWIFI_DEBUG
3325 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3326 struct iwl4965_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
3327 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
3328 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
3332 static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
3333 struct iwl4965_rx_mem_buffer
*rxb
)
3335 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3336 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
3337 "notification for %s:\n",
3338 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
3339 iwl_print_hex_dump(IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
3342 static void iwl4965_bg_beacon_update(struct work_struct
*work
)
3344 struct iwl_priv
*priv
=
3345 container_of(work
, struct iwl_priv
, beacon_update
);
3346 struct sk_buff
*beacon
;
3348 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
3349 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
, NULL
);
3352 IWL_ERROR("update beacon failed\n");
3356 mutex_lock(&priv
->mutex
);
3357 /* new beacon skb is allocated every time; dispose previous.*/
3358 if (priv
->ibss_beacon
)
3359 dev_kfree_skb(priv
->ibss_beacon
);
3361 priv
->ibss_beacon
= beacon
;
3362 mutex_unlock(&priv
->mutex
);
3364 iwl4965_send_beacon_cmd(priv
);
3367 static void iwl4965_rx_beacon_notif(struct iwl_priv
*priv
,
3368 struct iwl4965_rx_mem_buffer
*rxb
)
3370 #ifdef CONFIG_IWLWIFI_DEBUG
3371 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3372 struct iwl4965_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
3373 u8 rate
= iwl4965_hw_get_rate(beacon
->beacon_notify_hdr
.rate_n_flags
);
3375 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
3376 "tsf %d %d rate %d\n",
3377 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
3378 beacon
->beacon_notify_hdr
.failure_frame
,
3379 le32_to_cpu(beacon
->ibss_mgr_status
),
3380 le32_to_cpu(beacon
->high_tsf
),
3381 le32_to_cpu(beacon
->low_tsf
), rate
);
3384 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
3385 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
3386 queue_work(priv
->workqueue
, &priv
->beacon_update
);
3389 /* Service response to REPLY_SCAN_CMD (0x80) */
3390 static void iwl4965_rx_reply_scan(struct iwl_priv
*priv
,
3391 struct iwl4965_rx_mem_buffer
*rxb
)
3393 #ifdef CONFIG_IWLWIFI_DEBUG
3394 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3395 struct iwl4965_scanreq_notification
*notif
=
3396 (struct iwl4965_scanreq_notification
*)pkt
->u
.raw
;
3398 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
3402 /* Service SCAN_START_NOTIFICATION (0x82) */
3403 static void iwl4965_rx_scan_start_notif(struct iwl_priv
*priv
,
3404 struct iwl4965_rx_mem_buffer
*rxb
)
3406 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3407 struct iwl4965_scanstart_notification
*notif
=
3408 (struct iwl4965_scanstart_notification
*)pkt
->u
.raw
;
3409 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
3410 IWL_DEBUG_SCAN("Scan start: "
3412 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
3414 notif
->band
? "bg" : "a",
3416 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
3419 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
3420 static void iwl4965_rx_scan_results_notif(struct iwl_priv
*priv
,
3421 struct iwl4965_rx_mem_buffer
*rxb
)
3423 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3424 struct iwl4965_scanresults_notification
*notif
=
3425 (struct iwl4965_scanresults_notification
*)pkt
->u
.raw
;
3427 IWL_DEBUG_SCAN("Scan ch.res: "
3429 "(TSF: 0x%08X:%08X) - %d "
3430 "elapsed=%lu usec (%dms since last)\n",
3432 notif
->band
? "bg" : "a",
3433 le32_to_cpu(notif
->tsf_high
),
3434 le32_to_cpu(notif
->tsf_low
),
3435 le32_to_cpu(notif
->statistics
[0]),
3436 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
3437 jiffies_to_msecs(elapsed_jiffies
3438 (priv
->last_scan_jiffies
, jiffies
)));
3440 priv
->last_scan_jiffies
= jiffies
;
3441 priv
->next_scan_jiffies
= 0;
3444 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
3445 static void iwl4965_rx_scan_complete_notif(struct iwl_priv
*priv
,
3446 struct iwl4965_rx_mem_buffer
*rxb
)
3448 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3449 struct iwl4965_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
3451 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
3452 scan_notif
->scanned_channels
,
3453 scan_notif
->tsf_low
,
3454 scan_notif
->tsf_high
, scan_notif
->status
);
3456 /* The HW is no longer scanning */
3457 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
3459 /* The scan completion notification came in, so kill that timer... */
3460 cancel_delayed_work(&priv
->scan_check
);
3462 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
3463 (priv
->scan_bands
== 2) ? "2.4" : "5.2",
3464 jiffies_to_msecs(elapsed_jiffies
3465 (priv
->scan_pass_start
, jiffies
)));
3467 /* Remove this scanned band from the list
3468 * of pending bands to scan */
3471 /* If a request to abort was given, or the scan did not succeed
3472 * then we reset the scan state machine and terminate,
3473 * re-queuing another scan if one has been requested */
3474 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3475 IWL_DEBUG_INFO("Aborted scan completed.\n");
3476 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
3478 /* If there are more bands on this scan pass reschedule */
3479 if (priv
->scan_bands
> 0)
3483 priv
->last_scan_jiffies
= jiffies
;
3484 priv
->next_scan_jiffies
= 0;
3485 IWL_DEBUG_INFO("Setting scan to off\n");
3487 clear_bit(STATUS_SCANNING
, &priv
->status
);
3489 IWL_DEBUG_INFO("Scan took %dms\n",
3490 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
3492 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3497 priv
->scan_pass_start
= jiffies
;
3498 queue_work(priv
->workqueue
, &priv
->request_scan
);
3501 /* Handle notification from uCode that card's power state is changing
3502 * due to software, hardware, or critical temperature RFKILL */
3503 static void iwl4965_rx_card_state_notif(struct iwl_priv
*priv
,
3504 struct iwl4965_rx_mem_buffer
*rxb
)
3506 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3507 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
3508 unsigned long status
= priv
->status
;
3510 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
3511 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
3512 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
3514 if (flags
& (SW_CARD_DISABLED
| HW_CARD_DISABLED
|
3515 RF_CARD_DISABLED
)) {
3517 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3518 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3520 if (!iwl4965_grab_nic_access(priv
)) {
3521 iwl4965_write_direct32(
3522 priv
, HBUS_TARG_MBX_C
,
3523 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
3525 iwl4965_release_nic_access(priv
);
3528 if (!(flags
& RXON_CARD_DISABLED
)) {
3529 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
3530 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3531 if (!iwl4965_grab_nic_access(priv
)) {
3532 iwl4965_write_direct32(
3533 priv
, HBUS_TARG_MBX_C
,
3534 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
3536 iwl4965_release_nic_access(priv
);
3540 if (flags
& RF_CARD_DISABLED
) {
3541 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3542 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
3543 iwl4965_read32(priv
, CSR_UCODE_DRV_GP1
);
3544 if (!iwl4965_grab_nic_access(priv
))
3545 iwl4965_release_nic_access(priv
);
3549 if (flags
& HW_CARD_DISABLED
)
3550 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3552 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3555 if (flags
& SW_CARD_DISABLED
)
3556 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3558 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3560 if (!(flags
& RXON_CARD_DISABLED
))
3561 iwl4965_scan_cancel(priv
);
3563 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
3564 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
3565 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
3566 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
3567 queue_work(priv
->workqueue
, &priv
->rf_kill
);
3569 wake_up_interruptible(&priv
->wait_command_queue
);
3573 * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
3575 * Setup the RX handlers for each of the reply types sent from the uCode
3578 * This function chains into the hardware specific files for them to setup
3579 * any hardware specific handlers as well.
3581 static void iwl4965_setup_rx_handlers(struct iwl_priv
*priv
)
3583 priv
->rx_handlers
[REPLY_ALIVE
] = iwl4965_rx_reply_alive
;
3584 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl4965_rx_reply_add_sta
;
3585 priv
->rx_handlers
[REPLY_ERROR
] = iwl4965_rx_reply_error
;
3586 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl4965_rx_csa
;
3587 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
3588 iwl4965_rx_spectrum_measure_notif
;
3589 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl4965_rx_pm_sleep_notif
;
3590 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
3591 iwl4965_rx_pm_debug_statistics_notif
;
3592 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl4965_rx_beacon_notif
;
3595 * The same handler is used for both the REPLY to a discrete
3596 * statistics request from the host as well as for the periodic
3597 * statistics notifications (after received beacons) from the uCode.
3599 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl4965_hw_rx_statistics
;
3600 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl4965_hw_rx_statistics
;
3602 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl4965_rx_reply_scan
;
3603 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl4965_rx_scan_start_notif
;
3604 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
3605 iwl4965_rx_scan_results_notif
;
3606 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
3607 iwl4965_rx_scan_complete_notif
;
3608 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl4965_rx_card_state_notif
;
3609 priv
->rx_handlers
[REPLY_TX
] = iwl4965_rx_reply_tx
;
3611 /* Set up hardware specific Rx handlers */
3612 iwl4965_hw_rx_handler_setup(priv
);
3616 * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3617 * @rxb: Rx buffer to reclaim
3619 * If an Rx buffer has an async callback associated with it the callback
3620 * will be executed. The attached skb (if present) will only be freed
3621 * if the callback returns 1
3623 static void iwl4965_tx_cmd_complete(struct iwl_priv
*priv
,
3624 struct iwl4965_rx_mem_buffer
*rxb
)
3626 struct iwl4965_rx_packet
*pkt
= (struct iwl4965_rx_packet
*)rxb
->skb
->data
;
3627 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3628 int txq_id
= SEQ_TO_QUEUE(sequence
);
3629 int index
= SEQ_TO_INDEX(sequence
);
3630 int huge
= sequence
& SEQ_HUGE_FRAME
;
3632 struct iwl_cmd
*cmd
;
3634 /* If a Tx command is being handled and it isn't in the actual
3635 * command queue then there a command routing bug has been introduced
3636 * in the queue management code. */
3637 if (txq_id
!= IWL_CMD_QUEUE_NUM
)
3638 IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
3639 txq_id
, pkt
->hdr
.cmd
);
3640 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
3642 cmd_index
= get_cmd_index(&priv
->txq
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
3643 cmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
3645 /* Input error checking is done when commands are added to queue. */
3646 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
3647 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
3649 } else if (cmd
->meta
.u
.callback
&&
3650 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
3653 iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3655 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
3656 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
3657 wake_up_interruptible(&priv
->wait_command_queue
);
3661 /************************** RX-FUNCTIONS ****************************/
3663 * Rx theory of operation
3665 * Driver allocates a circular buffer of Receive Buffer Descriptors (RBDs),
3666 * each of which point to Receive Buffers to be filled by 4965. These get
3667 * used not only for Rx frames, but for any command response or notification
3668 * from the 4965. The driver and 4965 manage the Rx buffers by means
3669 * of indexes into the circular buffer.
3672 * The host/firmware share two index registers for managing the Rx buffers.
3674 * The READ index maps to the first position that the firmware may be writing
3675 * to -- the driver can read up to (but not including) this position and get
3677 * The READ index is managed by the firmware once the card is enabled.
3679 * The WRITE index maps to the last position the driver has read from -- the
3680 * position preceding WRITE is the last slot the firmware can place a packet.
3682 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
3685 * During initialization, the host sets up the READ queue position to the first
3686 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3688 * When the firmware places a packet in a buffer, it will advance the READ index
3689 * and fire the RX interrupt. The driver can then query the READ index and
3690 * process as many packets as possible, moving the WRITE index forward as it
3691 * resets the Rx queue buffers with new memory.
3693 * The management in the driver is as follows:
3694 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
3695 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
3696 * to replenish the iwl->rxq->rx_free.
3697 * + In iwl4965_rx_replenish (scheduled) if 'processed' != 'read' then the
3698 * iwl->rxq is replenished and the READ INDEX is updated (updating the
3699 * 'processed' and 'read' driver indexes as well)
3700 * + A received packet is processed and handed to the kernel network stack,
3701 * detached from the iwl->rxq. The driver 'processed' index is updated.
3702 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
3703 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
3704 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
3705 * were enough free buffers and RX_STALLED is set it is cleared.
3710 * iwl4965_rx_queue_alloc() Allocates rx_free
3711 * iwl4965_rx_replenish() Replenishes rx_free list from rx_used, and calls
3712 * iwl4965_rx_queue_restock
3713 * iwl4965_rx_queue_restock() Moves available buffers from rx_free into Rx
3714 * queue, updates firmware pointers, and updates
3715 * the WRITE index. If insufficient rx_free buffers
3716 * are available, schedules iwl4965_rx_replenish
3718 * -- enable interrupts --
3719 * ISR - iwl4965_rx() Detach iwl4965_rx_mem_buffers from pool up to the
3720 * READ INDEX, detaching the SKB from the pool.
3721 * Moves the packet buffer from queue to rx_used.
3722 * Calls iwl4965_rx_queue_restock to refill any empty
3729 * iwl4965_rx_queue_space - Return number of free slots available in queue.
3731 static int iwl4965_rx_queue_space(const struct iwl4965_rx_queue
*q
)
3733 int s
= q
->read
- q
->write
;
3736 /* keep some buffer to not confuse full and empty queue */
3744 * iwl4965_rx_queue_update_write_ptr - Update the write pointer for the RX queue
3746 int iwl4965_rx_queue_update_write_ptr(struct iwl_priv
*priv
, struct iwl4965_rx_queue
*q
)
3750 unsigned long flags
;
3752 spin_lock_irqsave(&q
->lock
, flags
);
3754 if (q
->need_update
== 0)
3757 /* If power-saving is in use, make sure device is awake */
3758 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
3759 reg
= iwl4965_read32(priv
, CSR_UCODE_DRV_GP1
);
3761 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
3762 iwl4965_set_bit(priv
, CSR_GP_CNTRL
,
3763 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3767 rc
= iwl4965_grab_nic_access(priv
);
3771 /* Device expects a multiple of 8 */
3772 iwl4965_write_direct32(priv
, FH_RSCSR_CHNL0_WPTR
,
3774 iwl4965_release_nic_access(priv
);
3776 /* Else device is assumed to be awake */
3778 /* Device expects a multiple of 8 */
3779 iwl4965_write32(priv
, FH_RSCSR_CHNL0_WPTR
, q
->write
& ~0x7);
3785 spin_unlock_irqrestore(&q
->lock
, flags
);
3790 * iwl4965_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
3792 static inline __le32
iwl4965_dma_addr2rbd_ptr(struct iwl_priv
*priv
,
3793 dma_addr_t dma_addr
)
3795 return cpu_to_le32((u32
)(dma_addr
>> 8));
3800 * iwl4965_rx_queue_restock - refill RX queue from pre-allocated pool
3802 * If there are slots in the RX queue that need to be restocked,
3803 * and we have free pre-allocated buffers, fill the ranks as much
3804 * as we can, pulling from rx_free.
3806 * This moves the 'write' index forward to catch up with 'processed', and
3807 * also updates the memory address in the firmware to reference the new
3810 static int iwl4965_rx_queue_restock(struct iwl_priv
*priv
)
3812 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
3813 struct list_head
*element
;
3814 struct iwl4965_rx_mem_buffer
*rxb
;
3815 unsigned long flags
;
3818 spin_lock_irqsave(&rxq
->lock
, flags
);
3819 write
= rxq
->write
& ~0x7;
3820 while ((iwl4965_rx_queue_space(rxq
) > 0) && (rxq
->free_count
)) {
3821 /* Get next free Rx buffer, remove from free list */
3822 element
= rxq
->rx_free
.next
;
3823 rxb
= list_entry(element
, struct iwl4965_rx_mem_buffer
, list
);
3826 /* Point to Rx buffer via next RBD in circular buffer */
3827 rxq
->bd
[rxq
->write
] = iwl4965_dma_addr2rbd_ptr(priv
, rxb
->dma_addr
);
3828 rxq
->queue
[rxq
->write
] = rxb
;
3829 rxq
->write
= (rxq
->write
+ 1) & RX_QUEUE_MASK
;
3832 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3833 /* If the pre-allocated buffer pool is dropping low, schedule to
3835 if (rxq
->free_count
<= RX_LOW_WATERMARK
)
3836 queue_work(priv
->workqueue
, &priv
->rx_replenish
);
3839 /* If we've added more space for the firmware to place data, tell it.
3840 * Increment device's write pointer in multiples of 8. */
3841 if ((write
!= (rxq
->write
& ~0x7))
3842 || (abs(rxq
->write
- rxq
->read
) > 7)) {
3843 spin_lock_irqsave(&rxq
->lock
, flags
);
3844 rxq
->need_update
= 1;
3845 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3846 rc
= iwl4965_rx_queue_update_write_ptr(priv
, rxq
);
3855 * iwl4965_rx_replenish - Move all used packet from rx_used to rx_free
3857 * When moving to rx_free an SKB is allocated for the slot.
3859 * Also restock the Rx queue via iwl4965_rx_queue_restock.
3860 * This is called as a scheduled work item (except for during initialization)
3862 static void iwl4965_rx_allocate(struct iwl_priv
*priv
)
3864 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
3865 struct list_head
*element
;
3866 struct iwl4965_rx_mem_buffer
*rxb
;
3867 unsigned long flags
;
3868 spin_lock_irqsave(&rxq
->lock
, flags
);
3869 while (!list_empty(&rxq
->rx_used
)) {
3870 element
= rxq
->rx_used
.next
;
3871 rxb
= list_entry(element
, struct iwl4965_rx_mem_buffer
, list
);
3873 /* Alloc a new receive buffer */
3875 alloc_skb(priv
->hw_setting
.rx_buf_size
,
3876 __GFP_NOWARN
| GFP_ATOMIC
);
3878 if (net_ratelimit())
3879 printk(KERN_CRIT DRV_NAME
3880 ": Can not allocate SKB buffers\n");
3881 /* We don't reschedule replenish work here -- we will
3882 * call the restock method and if it still needs
3883 * more buffers it will schedule replenish */
3886 priv
->alloc_rxb_skb
++;
3889 /* Get physical address of RB/SKB */
3891 pci_map_single(priv
->pci_dev
, rxb
->skb
->data
,
3892 priv
->hw_setting
.rx_buf_size
, PCI_DMA_FROMDEVICE
);
3893 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
3896 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3900 * this should be called while priv->lock is locked
3902 static void __iwl4965_rx_replenish(void *data
)
3904 struct iwl_priv
*priv
= data
;
3906 iwl4965_rx_allocate(priv
);
3907 iwl4965_rx_queue_restock(priv
);
3911 void iwl4965_rx_replenish(void *data
)
3913 struct iwl_priv
*priv
= data
;
3914 unsigned long flags
;
3916 iwl4965_rx_allocate(priv
);
3918 spin_lock_irqsave(&priv
->lock
, flags
);
3919 iwl4965_rx_queue_restock(priv
);
3920 spin_unlock_irqrestore(&priv
->lock
, flags
);
3923 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
3924 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
3925 * This free routine walks the list of POOL entries and if SKB is set to
3926 * non NULL it is unmapped and freed
3928 static void iwl4965_rx_queue_free(struct iwl_priv
*priv
, struct iwl4965_rx_queue
*rxq
)
3931 for (i
= 0; i
< RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
; i
++) {
3932 if (rxq
->pool
[i
].skb
!= NULL
) {
3933 pci_unmap_single(priv
->pci_dev
,
3934 rxq
->pool
[i
].dma_addr
,
3935 priv
->hw_setting
.rx_buf_size
,
3936 PCI_DMA_FROMDEVICE
);
3937 dev_kfree_skb(rxq
->pool
[i
].skb
);
3941 pci_free_consistent(priv
->pci_dev
, 4 * RX_QUEUE_SIZE
, rxq
->bd
,
3946 int iwl4965_rx_queue_alloc(struct iwl_priv
*priv
)
3948 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
3949 struct pci_dev
*dev
= priv
->pci_dev
;
3952 spin_lock_init(&rxq
->lock
);
3953 INIT_LIST_HEAD(&rxq
->rx_free
);
3954 INIT_LIST_HEAD(&rxq
->rx_used
);
3956 /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
3957 rxq
->bd
= pci_alloc_consistent(dev
, 4 * RX_QUEUE_SIZE
, &rxq
->dma_addr
);
3961 /* Fill the rx_used queue with _all_ of the Rx buffers */
3962 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++)
3963 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3965 /* Set us so that we have processed and used all buffers, but have
3966 * not restocked the Rx queue with fresh buffers */
3967 rxq
->read
= rxq
->write
= 0;
3968 rxq
->free_count
= 0;
3969 rxq
->need_update
= 0;
3973 void iwl4965_rx_queue_reset(struct iwl_priv
*priv
, struct iwl4965_rx_queue
*rxq
)
3975 unsigned long flags
;
3977 spin_lock_irqsave(&rxq
->lock
, flags
);
3978 INIT_LIST_HEAD(&rxq
->rx_free
);
3979 INIT_LIST_HEAD(&rxq
->rx_used
);
3980 /* Fill the rx_used queue with _all_ of the Rx buffers */
3981 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++) {
3982 /* In the reset function, these buffers may have been allocated
3983 * to an SKB, so we need to unmap and free potential storage */
3984 if (rxq
->pool
[i
].skb
!= NULL
) {
3985 pci_unmap_single(priv
->pci_dev
,
3986 rxq
->pool
[i
].dma_addr
,
3987 priv
->hw_setting
.rx_buf_size
,
3988 PCI_DMA_FROMDEVICE
);
3989 priv
->alloc_rxb_skb
--;
3990 dev_kfree_skb(rxq
->pool
[i
].skb
);
3991 rxq
->pool
[i
].skb
= NULL
;
3993 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3996 /* Set us so that we have processed and used all buffers, but have
3997 * not restocked the Rx queue with fresh buffers */
3998 rxq
->read
= rxq
->write
= 0;
3999 rxq
->free_count
= 0;
4000 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4003 /* Convert linear signal-to-noise ratio into dB */
4004 static u8 ratio2dB
[100] = {
4005 /* 0 1 2 3 4 5 6 7 8 9 */
4006 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
4007 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
4008 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
4009 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
4010 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
4011 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
4012 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
4013 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
4014 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
4015 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
4018 /* Calculates a relative dB value from a ratio of linear
4019 * (i.e. not dB) signal levels.
4020 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
4021 int iwl4965_calc_db_from_ratio(int sig_ratio
)
4023 /* 1000:1 or higher just report as 60 dB */
4024 if (sig_ratio
>= 1000)
4027 /* 100:1 or higher, divide by 10 and use table,
4028 * add 20 dB to make up for divide by 10 */
4029 if (sig_ratio
>= 100)
4030 return (20 + (int)ratio2dB
[sig_ratio
/10]);
4032 /* We shouldn't see this */
4036 /* Use table for ratios 1:1 - 99:1 */
4037 return (int)ratio2dB
[sig_ratio
];
4040 #define PERFECT_RSSI (-20) /* dBm */
4041 #define WORST_RSSI (-95) /* dBm */
4042 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
4044 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
4045 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
4046 * about formulas used below. */
4047 int iwl4965_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
4050 int degradation
= PERFECT_RSSI
- rssi_dbm
;
4052 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
4053 * as indicator; formula is (signal dbm - noise dbm).
4054 * SNR at or above 40 is a great signal (100%).
4055 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
4056 * Weakest usable signal is usually 10 - 15 dB SNR. */
4058 if (rssi_dbm
- noise_dbm
>= 40)
4060 else if (rssi_dbm
< noise_dbm
)
4062 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
4064 /* Else use just the signal level.
4065 * This formula is a least squares fit of data points collected and
4066 * compared with a reference system that had a percentage (%) display
4067 * for signal quality. */
4069 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
4070 (15 * RSSI_RANGE
+ 62 * degradation
)) /
4071 (RSSI_RANGE
* RSSI_RANGE
);
4075 else if (sig_qual
< 1)
4082 * iwl4965_rx_handle - Main entry function for receiving responses from uCode
4084 * Uses the priv->rx_handlers callback function array to invoke
4085 * the appropriate handlers, including command responses,
4086 * frame-received notifications, and other notifications.
4088 static void iwl4965_rx_handle(struct iwl_priv
*priv
)
4090 struct iwl4965_rx_mem_buffer
*rxb
;
4091 struct iwl4965_rx_packet
*pkt
;
4092 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
4095 unsigned long flags
;
4099 /* uCode's read index (stored in shared DRAM) indicates the last Rx
4100 * buffer that the driver may process (last buffer filled by ucode). */
4101 r
= iwl4965_hw_get_rx_read(priv
);
4104 /* Rx interrupt, but nothing sent from uCode */
4106 IWL_DEBUG(IWL_DL_RX
| IWL_DL_ISR
, "r = %d, i = %d\n", r
, i
);
4108 if (iwl4965_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
4112 rxb
= rxq
->queue
[i
];
4114 /* If an RXB doesn't have a Rx queue slot associated with it,
4115 * then a bug has been introduced in the queue refilling
4116 * routines -- catch it here */
4117 BUG_ON(rxb
== NULL
);
4119 rxq
->queue
[i
] = NULL
;
4121 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
4122 priv
->hw_setting
.rx_buf_size
,
4123 PCI_DMA_FROMDEVICE
);
4124 pkt
= (struct iwl4965_rx_packet
*)rxb
->skb
->data
;
4126 /* Reclaim a command buffer only if this packet is a response
4127 * to a (driver-originated) command.
4128 * If the packet (e.g. Rx frame) originated from uCode,
4129 * there is no command buffer to reclaim.
4130 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
4131 * but apparently a few don't get set; catch them here. */
4132 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
4133 (pkt
->hdr
.cmd
!= REPLY_RX_PHY_CMD
) &&
4134 (pkt
->hdr
.cmd
!= REPLY_RX
) &&
4135 (pkt
->hdr
.cmd
!= REPLY_COMPRESSED_BA
) &&
4136 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
4137 (pkt
->hdr
.cmd
!= REPLY_TX
);
4139 /* Based on type of command response or notification,
4140 * handle those that need handling via function in
4141 * rx_handlers table. See iwl4965_setup_rx_handlers() */
4142 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
4143 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4144 "r = %d, i = %d, %s, 0x%02x\n", r
, i
,
4145 get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
4146 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
4148 /* No handling needed */
4149 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4150 "r %d i %d No handler needed for %s, 0x%02x\n",
4151 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
4156 /* Invoke any callbacks, transfer the skb to caller, and
4157 * fire off the (possibly) blocking iwl_send_cmd()
4158 * as we reclaim the driver command queue */
4159 if (rxb
&& rxb
->skb
)
4160 iwl4965_tx_cmd_complete(priv
, rxb
);
4162 IWL_WARNING("Claim null rxb?\n");
4165 /* For now we just don't re-use anything. We can tweak this
4166 * later to try and re-use notification packets and SKBs that
4167 * fail to Rx correctly */
4168 if (rxb
->skb
!= NULL
) {
4169 priv
->alloc_rxb_skb
--;
4170 dev_kfree_skb_any(rxb
->skb
);
4174 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
4175 priv
->hw_setting
.rx_buf_size
,
4176 PCI_DMA_FROMDEVICE
);
4177 spin_lock_irqsave(&rxq
->lock
, flags
);
4178 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
4179 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4180 i
= (i
+ 1) & RX_QUEUE_MASK
;
4181 /* If there are a lot of unused frames,
4182 * restock the Rx queue so ucode wont assert. */
4187 __iwl4965_rx_replenish(priv
);
4193 /* Backtrack one entry */
4195 iwl4965_rx_queue_restock(priv
);
4199 * iwl4965_tx_queue_update_write_ptr - Send new write index to hardware
4201 static int iwl4965_tx_queue_update_write_ptr(struct iwl_priv
*priv
,
4202 struct iwl4965_tx_queue
*txq
)
4206 int txq_id
= txq
->q
.id
;
4208 if (txq
->need_update
== 0)
4211 /* if we're trying to save power */
4212 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
4213 /* wake up nic if it's powered down ...
4214 * uCode will wake up, and interrupt us again, so next
4215 * time we'll skip this part. */
4216 reg
= iwl4965_read32(priv
, CSR_UCODE_DRV_GP1
);
4218 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
4219 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg
);
4220 iwl4965_set_bit(priv
, CSR_GP_CNTRL
,
4221 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
4225 /* restore this queue's parameters in nic hardware. */
4226 rc
= iwl4965_grab_nic_access(priv
);
4229 iwl4965_write_direct32(priv
, HBUS_TARG_WRPTR
,
4230 txq
->q
.write_ptr
| (txq_id
<< 8));
4231 iwl4965_release_nic_access(priv
);
4233 /* else not in power-save mode, uCode will never sleep when we're
4234 * trying to tx (during RFKILL, we're not trying to tx). */
4236 iwl4965_write32(priv
, HBUS_TARG_WRPTR
,
4237 txq
->q
.write_ptr
| (txq_id
<< 8));
4239 txq
->need_update
= 0;
4244 #ifdef CONFIG_IWLWIFI_DEBUG
4245 static void iwl4965_print_rx_config_cmd(struct iwl4965_rxon_cmd
*rxon
)
4247 DECLARE_MAC_BUF(mac
);
4249 IWL_DEBUG_RADIO("RX CONFIG:\n");
4250 iwl_print_hex_dump(IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
4251 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
4252 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
4253 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
4254 le32_to_cpu(rxon
->filter_flags
));
4255 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
4256 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
4257 rxon
->ofdm_basic_rates
);
4258 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
4259 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
4260 print_mac(mac
, rxon
->node_addr
));
4261 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
4262 print_mac(mac
, rxon
->bssid_addr
));
4263 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
4267 static void iwl4965_enable_interrupts(struct iwl_priv
*priv
)
4269 IWL_DEBUG_ISR("Enabling interrupts\n");
4270 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
4271 iwl4965_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
4274 static inline void iwl4965_disable_interrupts(struct iwl_priv
*priv
)
4276 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
4278 /* disable interrupts from uCode/NIC to host */
4279 iwl4965_write32(priv
, CSR_INT_MASK
, 0x00000000);
4281 /* acknowledge/clear/reset any interrupts still pending
4282 * from uCode or flow handler (Rx/Tx DMA) */
4283 iwl4965_write32(priv
, CSR_INT
, 0xffffffff);
4284 iwl4965_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
4285 IWL_DEBUG_ISR("Disabled interrupts\n");
4288 static const char *desc_lookup(int i
)
4296 return "BAD_CHECKSUM";
4298 return "NMI_INTERRUPT";
4302 return "FATAL_ERROR";
4308 #define ERROR_START_OFFSET (1 * sizeof(u32))
4309 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
4311 static void iwl4965_dump_nic_error_log(struct iwl_priv
*priv
)
4314 u32 desc
, time
, count
, base
, data1
;
4315 u32 blink1
, blink2
, ilink1
, ilink2
;
4318 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
4320 if (!iwl4965_hw_valid_rtc_data_addr(base
)) {
4321 IWL_ERROR("Not valid error log pointer 0x%08X\n", base
);
4325 rc
= iwl4965_grab_nic_access(priv
);
4327 IWL_WARNING("Can not read from adapter at this time.\n");
4331 count
= iwl4965_read_targ_mem(priv
, base
);
4333 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
4334 IWL_ERROR("Start IWL Error Log Dump:\n");
4335 IWL_ERROR("Status: 0x%08lX, count: %d\n", priv
->status
, count
);
4338 desc
= iwl4965_read_targ_mem(priv
, base
+ 1 * sizeof(u32
));
4339 blink1
= iwl4965_read_targ_mem(priv
, base
+ 3 * sizeof(u32
));
4340 blink2
= iwl4965_read_targ_mem(priv
, base
+ 4 * sizeof(u32
));
4341 ilink1
= iwl4965_read_targ_mem(priv
, base
+ 5 * sizeof(u32
));
4342 ilink2
= iwl4965_read_targ_mem(priv
, base
+ 6 * sizeof(u32
));
4343 data1
= iwl4965_read_targ_mem(priv
, base
+ 7 * sizeof(u32
));
4344 data2
= iwl4965_read_targ_mem(priv
, base
+ 8 * sizeof(u32
));
4345 line
= iwl4965_read_targ_mem(priv
, base
+ 9 * sizeof(u32
));
4346 time
= iwl4965_read_targ_mem(priv
, base
+ 11 * sizeof(u32
));
4348 IWL_ERROR("Desc Time "
4349 "data1 data2 line\n");
4350 IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n",
4351 desc_lookup(desc
), desc
, time
, data1
, data2
, line
);
4352 IWL_ERROR("blink1 blink2 ilink1 ilink2\n");
4353 IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1
, blink2
,
4356 iwl4965_release_nic_access(priv
);
4359 #define EVENT_START_OFFSET (4 * sizeof(u32))
4362 * iwl4965_print_event_log - Dump error event log to syslog
4364 * NOTE: Must be called with iwl4965_grab_nic_access() already obtained!
4366 static void iwl4965_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
4367 u32 num_events
, u32 mode
)
4370 u32 base
; /* SRAM byte address of event log header */
4371 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
4372 u32 ptr
; /* SRAM byte address of log data */
4373 u32 ev
, time
, data
; /* event log data */
4375 if (num_events
== 0)
4378 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4381 event_size
= 2 * sizeof(u32
);
4383 event_size
= 3 * sizeof(u32
);
4385 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
4387 /* "time" is actually "data" for mode 0 (no timestamp).
4388 * place event id # at far right for easier visual parsing. */
4389 for (i
= 0; i
< num_events
; i
++) {
4390 ev
= iwl4965_read_targ_mem(priv
, ptr
);
4392 time
= iwl4965_read_targ_mem(priv
, ptr
);
4395 IWL_ERROR("0x%08x\t%04u\n", time
, ev
); /* data, ev */
4397 data
= iwl4965_read_targ_mem(priv
, ptr
);
4399 IWL_ERROR("%010u\t0x%08x\t%04u\n", time
, data
, ev
);
4404 static void iwl4965_dump_nic_event_log(struct iwl_priv
*priv
)
4407 u32 base
; /* SRAM byte address of event log header */
4408 u32 capacity
; /* event log capacity in # entries */
4409 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
4410 u32 num_wraps
; /* # times uCode wrapped to top of log */
4411 u32 next_entry
; /* index of next entry to be written by uCode */
4412 u32 size
; /* # entries that we'll print */
4414 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4415 if (!iwl4965_hw_valid_rtc_data_addr(base
)) {
4416 IWL_ERROR("Invalid event log pointer 0x%08X\n", base
);
4420 rc
= iwl4965_grab_nic_access(priv
);
4422 IWL_WARNING("Can not read from adapter at this time.\n");
4426 /* event log header */
4427 capacity
= iwl4965_read_targ_mem(priv
, base
);
4428 mode
= iwl4965_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
4429 num_wraps
= iwl4965_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
4430 next_entry
= iwl4965_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
4432 size
= num_wraps
? capacity
: next_entry
;
4434 /* bail out if nothing in log */
4436 IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
4437 iwl4965_release_nic_access(priv
);
4441 IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
4444 /* if uCode has wrapped back to top of log, start at the oldest entry,
4445 * i.e the next one that uCode would fill. */
4447 iwl4965_print_event_log(priv
, next_entry
,
4448 capacity
- next_entry
, mode
);
4450 /* (then/else) start at top of log */
4451 iwl4965_print_event_log(priv
, 0, next_entry
, mode
);
4453 iwl4965_release_nic_access(priv
);
4457 * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
4459 static void iwl4965_irq_handle_error(struct iwl_priv
*priv
)
4461 /* Set the FW error flag -- cleared on iwl4965_down */
4462 set_bit(STATUS_FW_ERROR
, &priv
->status
);
4464 /* Cancel currently queued command. */
4465 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
4467 #ifdef CONFIG_IWLWIFI_DEBUG
4468 if (iwl_debug_level
& IWL_DL_FW_ERRORS
) {
4469 iwl4965_dump_nic_error_log(priv
);
4470 iwl4965_dump_nic_event_log(priv
);
4471 iwl4965_print_rx_config_cmd(&priv
->staging_rxon
);
4475 wake_up_interruptible(&priv
->wait_command_queue
);
4477 /* Keep the restart process from trying to send host
4478 * commands by clearing the INIT status bit */
4479 clear_bit(STATUS_READY
, &priv
->status
);
4481 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
4482 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_FW_ERRORS
,
4483 "Restarting adapter due to uCode error.\n");
4485 if (iwl4965_is_associated(priv
)) {
4486 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
4487 sizeof(priv
->recovery_rxon
));
4488 priv
->error_recovering
= 1;
4490 queue_work(priv
->workqueue
, &priv
->restart
);
4494 static void iwl4965_error_recovery(struct iwl_priv
*priv
)
4496 unsigned long flags
;
4498 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
4499 sizeof(priv
->staging_rxon
));
4500 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4501 iwl4965_commit_rxon(priv
);
4503 iwl4965_rxon_add_station(priv
, priv
->bssid
, 1);
4505 spin_lock_irqsave(&priv
->lock
, flags
);
4506 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
4507 priv
->error_recovering
= 0;
4508 spin_unlock_irqrestore(&priv
->lock
, flags
);
4511 static void iwl4965_irq_tasklet(struct iwl_priv
*priv
)
4513 u32 inta
, handled
= 0;
4515 unsigned long flags
;
4516 #ifdef CONFIG_IWLWIFI_DEBUG
4520 spin_lock_irqsave(&priv
->lock
, flags
);
4522 /* Ack/clear/reset pending uCode interrupts.
4523 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
4524 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
4525 inta
= iwl4965_read32(priv
, CSR_INT
);
4526 iwl4965_write32(priv
, CSR_INT
, inta
);
4528 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
4529 * Any new interrupts that happen after this, either while we're
4530 * in this tasklet, or later, will show up in next ISR/tasklet. */
4531 inta_fh
= iwl4965_read32(priv
, CSR_FH_INT_STATUS
);
4532 iwl4965_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
4534 #ifdef CONFIG_IWLWIFI_DEBUG
4535 if (iwl_debug_level
& IWL_DL_ISR
) {
4536 /* just for debug */
4537 inta_mask
= iwl4965_read32(priv
, CSR_INT_MASK
);
4538 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4539 inta
, inta_mask
, inta_fh
);
4543 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
4544 * atomic, make sure that inta covers all the interrupts that
4545 * we've discovered, even if FH interrupt came in just after
4546 * reading CSR_INT. */
4547 if (inta_fh
& CSR49_FH_INT_RX_MASK
)
4548 inta
|= CSR_INT_BIT_FH_RX
;
4549 if (inta_fh
& CSR49_FH_INT_TX_MASK
)
4550 inta
|= CSR_INT_BIT_FH_TX
;
4552 /* Now service all interrupt bits discovered above. */
4553 if (inta
& CSR_INT_BIT_HW_ERR
) {
4554 IWL_ERROR("Microcode HW error detected. Restarting.\n");
4556 /* Tell the device to stop sending interrupts */
4557 iwl4965_disable_interrupts(priv
);
4559 iwl4965_irq_handle_error(priv
);
4561 handled
|= CSR_INT_BIT_HW_ERR
;
4563 spin_unlock_irqrestore(&priv
->lock
, flags
);
4568 #ifdef CONFIG_IWLWIFI_DEBUG
4569 if (iwl_debug_level
& (IWL_DL_ISR
)) {
4570 /* NIC fires this, but we don't use it, redundant with WAKEUP */
4571 if (inta
& CSR_INT_BIT_SCD
)
4572 IWL_DEBUG_ISR("Scheduler finished to transmit "
4573 "the frame/frames.\n");
4575 /* Alive notification via Rx interrupt will do the real work */
4576 if (inta
& CSR_INT_BIT_ALIVE
)
4577 IWL_DEBUG_ISR("Alive interrupt\n");
4580 /* Safely ignore these bits for debug checks below */
4581 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
4583 /* HW RF KILL switch toggled */
4584 if (inta
& CSR_INT_BIT_RF_KILL
) {
4586 if (!(iwl4965_read32(priv
, CSR_GP_CNTRL
) &
4587 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
4590 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
| IWL_DL_ISR
,
4591 "RF_KILL bit toggled to %s.\n",
4592 hw_rf_kill
? "disable radio":"enable radio");
4594 /* Queue restart only if RF_KILL switch was set to "kill"
4595 * when we loaded driver, and is now set to "enable".
4596 * After we're Alive, RF_KILL gets handled by
4597 * iwl4965_rx_card_state_notif() */
4598 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
4599 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
4600 queue_work(priv
->workqueue
, &priv
->restart
);
4603 handled
|= CSR_INT_BIT_RF_KILL
;
4606 /* Chip got too hot and stopped itself */
4607 if (inta
& CSR_INT_BIT_CT_KILL
) {
4608 IWL_ERROR("Microcode CT kill error detected.\n");
4609 handled
|= CSR_INT_BIT_CT_KILL
;
4612 /* Error detected by uCode */
4613 if (inta
& CSR_INT_BIT_SW_ERR
) {
4614 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
4616 iwl4965_irq_handle_error(priv
);
4617 handled
|= CSR_INT_BIT_SW_ERR
;
4620 /* uCode wakes up after power-down sleep */
4621 if (inta
& CSR_INT_BIT_WAKEUP
) {
4622 IWL_DEBUG_ISR("Wakeup interrupt\n");
4623 iwl4965_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
4624 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[0]);
4625 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[1]);
4626 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[2]);
4627 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[3]);
4628 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[4]);
4629 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[5]);
4631 handled
|= CSR_INT_BIT_WAKEUP
;
4634 /* All uCode command responses, including Tx command responses,
4635 * Rx "responses" (frame-received notification), and other
4636 * notifications from uCode come through here*/
4637 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
4638 iwl4965_rx_handle(priv
);
4639 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
4642 if (inta
& CSR_INT_BIT_FH_TX
) {
4643 IWL_DEBUG_ISR("Tx interrupt\n");
4644 handled
|= CSR_INT_BIT_FH_TX
;
4647 if (inta
& ~handled
)
4648 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
4650 if (inta
& ~CSR_INI_SET_MASK
) {
4651 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
4652 inta
& ~CSR_INI_SET_MASK
);
4653 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
4656 /* Re-enable all interrupts */
4657 iwl4965_enable_interrupts(priv
);
4659 #ifdef CONFIG_IWLWIFI_DEBUG
4660 if (iwl_debug_level
& (IWL_DL_ISR
)) {
4661 inta
= iwl4965_read32(priv
, CSR_INT
);
4662 inta_mask
= iwl4965_read32(priv
, CSR_INT_MASK
);
4663 inta_fh
= iwl4965_read32(priv
, CSR_FH_INT_STATUS
);
4664 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
4665 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
4668 spin_unlock_irqrestore(&priv
->lock
, flags
);
4671 static irqreturn_t
iwl4965_isr(int irq
, void *data
)
4673 struct iwl_priv
*priv
= data
;
4674 u32 inta
, inta_mask
;
4679 spin_lock(&priv
->lock
);
4681 /* Disable (but don't clear!) interrupts here to avoid
4682 * back-to-back ISRs and sporadic interrupts from our NIC.
4683 * If we have something to service, the tasklet will re-enable ints.
4684 * If we *don't* have something, we'll re-enable before leaving here. */
4685 inta_mask
= iwl4965_read32(priv
, CSR_INT_MASK
); /* just for debug */
4686 iwl4965_write32(priv
, CSR_INT_MASK
, 0x00000000);
4688 /* Discover which interrupts are active/pending */
4689 inta
= iwl4965_read32(priv
, CSR_INT
);
4690 inta_fh
= iwl4965_read32(priv
, CSR_FH_INT_STATUS
);
4692 /* Ignore interrupt if there's nothing in NIC to service.
4693 * This may be due to IRQ shared with another device,
4694 * or due to sporadic interrupts thrown from our NIC. */
4695 if (!inta
&& !inta_fh
) {
4696 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
4700 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
4701 /* Hardware disappeared. It might have already raised
4703 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
4707 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4708 inta
, inta_mask
, inta_fh
);
4710 inta
&= ~CSR_INT_BIT_SCD
;
4712 /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
4713 if (likely(inta
|| inta_fh
))
4714 tasklet_schedule(&priv
->irq_tasklet
);
4717 spin_unlock(&priv
->lock
);
4721 /* re-enable interrupts here since we don't have anything to service. */
4722 iwl4965_enable_interrupts(priv
);
4723 spin_unlock(&priv
->lock
);
4727 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
4728 * sending probe req. This should be set long enough to hear probe responses
4729 * from more than one AP. */
4730 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
4731 #define IWL_ACTIVE_DWELL_TIME_52 (10)
4733 /* For faster active scanning, scan will move to the next channel if fewer than
4734 * PLCP_QUIET_THRESH packets are heard on this channel within
4735 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
4736 * time if it's a quiet channel (nothing responded to our probe, and there's
4737 * no other traffic).
4738 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
4739 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
4740 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
4742 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
4743 * Must be set longer than active dwell time.
4744 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
4745 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
4746 #define IWL_PASSIVE_DWELL_TIME_52 (10)
4747 #define IWL_PASSIVE_DWELL_BASE (100)
4748 #define IWL_CHANNEL_TUNE_TIME 5
4750 static inline u16
iwl4965_get_active_dwell_time(struct iwl_priv
*priv
,
4751 enum ieee80211_band band
)
4753 if (band
== IEEE80211_BAND_5GHZ
)
4754 return IWL_ACTIVE_DWELL_TIME_52
;
4756 return IWL_ACTIVE_DWELL_TIME_24
;
4759 static u16
iwl4965_get_passive_dwell_time(struct iwl_priv
*priv
,
4760 enum ieee80211_band band
)
4762 u16 active
= iwl4965_get_active_dwell_time(priv
, band
);
4763 u16 passive
= (band
!= IEEE80211_BAND_5GHZ
) ?
4764 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
4765 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
4767 if (iwl4965_is_associated(priv
)) {
4768 /* If we're associated, we clamp the maximum passive
4769 * dwell time to be 98% of the beacon interval (minus
4770 * 2 * channel tune time) */
4771 passive
= priv
->beacon_int
;
4772 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
4773 passive
= IWL_PASSIVE_DWELL_BASE
;
4774 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
4777 if (passive
<= active
)
4778 passive
= active
+ 1;
4783 static int iwl4965_get_channels_for_scan(struct iwl_priv
*priv
,
4784 enum ieee80211_band band
,
4785 u8 is_active
, u8 direct_mask
,
4786 struct iwl4965_scan_channel
*scan_ch
)
4788 const struct ieee80211_channel
*channels
= NULL
;
4789 const struct ieee80211_supported_band
*sband
;
4790 const struct iwl_channel_info
*ch_info
;
4791 u16 passive_dwell
= 0;
4792 u16 active_dwell
= 0;
4795 sband
= iwl4965_get_hw_mode(priv
, band
);
4799 channels
= sband
->channels
;
4801 active_dwell
= iwl4965_get_active_dwell_time(priv
, band
);
4802 passive_dwell
= iwl4965_get_passive_dwell_time(priv
, band
);
4804 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
4805 if (ieee80211_frequency_to_channel(channels
[i
].center_freq
) ==
4806 le16_to_cpu(priv
->active_rxon
.channel
)) {
4807 if (iwl4965_is_associated(priv
)) {
4809 ("Skipping current channel %d\n",
4810 le16_to_cpu(priv
->active_rxon
.channel
));
4813 } else if (priv
->only_active_channel
)
4816 scan_ch
->channel
= ieee80211_frequency_to_channel(channels
[i
].center_freq
);
4818 ch_info
= iwl_get_channel_info(priv
, band
,
4820 if (!is_channel_valid(ch_info
)) {
4821 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
4826 if (!is_active
|| is_channel_passive(ch_info
) ||
4827 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
))
4828 scan_ch
->type
= 0; /* passive */
4830 scan_ch
->type
= 1; /* active */
4832 if (scan_ch
->type
& 1)
4833 scan_ch
->type
|= (direct_mask
<< 1);
4835 if (is_channel_narrow(ch_info
))
4836 scan_ch
->type
|= (1 << 7);
4838 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
4839 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
4841 /* Set txpower levels to defaults */
4842 scan_ch
->tpc
.dsp_atten
= 110;
4843 /* scan_pwr_info->tpc.dsp_atten; */
4845 /*scan_pwr_info->tpc.tx_gain; */
4846 if (band
== IEEE80211_BAND_5GHZ
)
4847 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
4849 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
4850 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
4852 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
4856 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
4858 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
4859 (scan_ch
->type
& 1) ?
4860 active_dwell
: passive_dwell
);
4866 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
4870 static void iwl4965_init_hw_rates(struct iwl_priv
*priv
,
4871 struct ieee80211_rate
*rates
)
4875 for (i
= 0; i
< IWL_RATE_COUNT
; i
++) {
4876 rates
[i
].bitrate
= iwl4965_rates
[i
].ieee
* 5;
4877 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
4878 rates
[i
].hw_value_short
= i
;
4880 if ((i
> IWL_LAST_OFDM_RATE
) || (i
< IWL_FIRST_OFDM_RATE
)) {
4882 * If CCK != 1M then set short preamble rate flag.
4885 (iwl4965_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
4886 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
4892 * iwl4965_init_geos - Initialize mac80211's geo/channel info based from eeprom
4894 int iwl4965_init_geos(struct iwl_priv
*priv
)
4896 struct iwl_channel_info
*ch
;
4897 struct ieee80211_supported_band
*sband
;
4898 struct ieee80211_channel
*channels
;
4899 struct ieee80211_channel
*geo_ch
;
4900 struct ieee80211_rate
*rates
;
4903 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
4904 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
4905 IWL_DEBUG_INFO("Geography modes already initialized.\n");
4906 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
4910 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
4911 priv
->channel_count
, GFP_KERNEL
);
4915 rates
= kzalloc((sizeof(struct ieee80211_rate
) * (IWL_RATE_COUNT
+ 1)),
4922 /* 5.2GHz channels start after the 2.4GHz channels */
4923 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
4924 sband
->channels
= &channels
[ARRAY_SIZE(iwl_eeprom_band_1
)];
4926 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
4927 sband
->n_bitrates
= IWL_RATE_COUNT
- IWL_FIRST_OFDM_RATE
;
4929 iwl4965_init_ht_hw_capab(priv
, &sband
->ht_info
, IEEE80211_BAND_5GHZ
);
4931 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
4932 sband
->channels
= channels
;
4934 sband
->bitrates
= rates
;
4935 sband
->n_bitrates
= IWL_RATE_COUNT
;
4937 iwl4965_init_ht_hw_capab(priv
, &sband
->ht_info
, IEEE80211_BAND_2GHZ
);
4939 priv
->ieee_channels
= channels
;
4940 priv
->ieee_rates
= rates
;
4942 iwl4965_init_hw_rates(priv
, rates
);
4944 for (i
= 0; i
< priv
->channel_count
; i
++) {
4945 ch
= &priv
->channel_info
[i
];
4947 /* FIXME: might be removed if scan is OK */
4948 if (!is_channel_valid(ch
))
4951 if (is_channel_a_band(ch
))
4952 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
4954 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
4956 geo_ch
= &sband
->channels
[sband
->n_channels
++];
4958 geo_ch
->center_freq
= ieee80211_channel_to_frequency(ch
->channel
);
4959 geo_ch
->max_power
= ch
->max_power_avg
;
4960 geo_ch
->max_antenna_gain
= 0xff;
4961 geo_ch
->hw_value
= ch
->channel
;
4963 if (is_channel_valid(ch
)) {
4964 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
4965 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
4967 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
4968 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
4970 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
4971 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
4973 if (ch
->max_power_avg
> priv
->max_channel_txpower_limit
)
4974 priv
->max_channel_txpower_limit
=
4977 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
4980 /* Save flags for reg domain usage */
4981 geo_ch
->orig_flags
= geo_ch
->flags
;
4983 IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n",
4984 ch
->channel
, geo_ch
->center_freq
,
4985 is_channel_a_band(ch
) ? "5.2" : "2.4",
4986 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
4987 "restricted" : "valid",
4991 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) &&
4992 priv
->cfg
->sku
& IWL_SKU_A
) {
4993 printk(KERN_INFO DRV_NAME
4994 ": Incorrectly detected BG card as ABG. Please send "
4995 "your PCI ID 0x%04X:0x%04X to maintainer.\n",
4996 priv
->pci_dev
->device
, priv
->pci_dev
->subsystem_device
);
4997 priv
->cfg
->sku
&= ~IWL_SKU_A
;
5000 printk(KERN_INFO DRV_NAME
5001 ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
5002 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
5003 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
5005 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
5006 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
5007 &priv
->bands
[IEEE80211_BAND_2GHZ
];
5008 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
5009 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
5010 &priv
->bands
[IEEE80211_BAND_5GHZ
];
5012 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5018 * iwl4965_free_geos - undo allocations in iwl4965_init_geos
5020 void iwl4965_free_geos(struct iwl_priv
*priv
)
5022 kfree(priv
->ieee_channels
);
5023 kfree(priv
->ieee_rates
);
5024 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5027 /******************************************************************************
5029 * uCode download functions
5031 ******************************************************************************/
5033 static void iwl4965_dealloc_ucode_pci(struct iwl_priv
*priv
)
5035 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5036 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5037 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5038 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5039 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5040 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5044 * iwl4965_verify_inst_full - verify runtime uCode image in card vs. host,
5045 * looking at all data.
5047 static int iwl4965_verify_inst_full(struct iwl_priv
*priv
, __le32
*image
,
5055 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5057 rc
= iwl4965_grab_nic_access(priv
);
5061 iwl4965_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, RTC_INST_LOWER_BOUND
);
5064 for (; len
> 0; len
-= sizeof(u32
), image
++) {
5065 /* read data comes through single port, auto-incr addr */
5066 /* NOTE: Use the debugless read so we don't flood kernel log
5067 * if IWL_DL_IO is set */
5068 val
= _iwl4965_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5069 if (val
!= le32_to_cpu(*image
)) {
5070 IWL_ERROR("uCode INST section is invalid at "
5071 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5072 save_len
- len
, val
, le32_to_cpu(*image
));
5080 iwl4965_release_nic_access(priv
);
5084 ("ucode image in INSTRUCTION memory is good\n");
5091 * iwl4965_verify_inst_sparse - verify runtime uCode image in card vs. host,
5092 * using sample data 100 bytes apart. If these sample points are good,
5093 * it's a pretty good bet that everything between them is good, too.
5095 static int iwl4965_verify_inst_sparse(struct iwl_priv
*priv
, __le32
*image
, u32 len
)
5102 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5104 rc
= iwl4965_grab_nic_access(priv
);
5108 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
5109 /* read data comes through single port, auto-incr addr */
5110 /* NOTE: Use the debugless read so we don't flood kernel log
5111 * if IWL_DL_IO is set */
5112 iwl4965_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
5113 i
+ RTC_INST_LOWER_BOUND
);
5114 val
= _iwl4965_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5115 if (val
!= le32_to_cpu(*image
)) {
5116 #if 0 /* Enable this if you want to see details */
5117 IWL_ERROR("uCode INST section is invalid at "
5118 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5128 iwl4965_release_nic_access(priv
);
5135 * iwl4965_verify_ucode - determine which instruction image is in SRAM,
5136 * and verify its contents
5138 static int iwl4965_verify_ucode(struct iwl_priv
*priv
)
5145 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5146 len
= priv
->ucode_boot
.len
;
5147 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5149 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
5153 /* Try initialize */
5154 image
= (__le32
*)priv
->ucode_init
.v_addr
;
5155 len
= priv
->ucode_init
.len
;
5156 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5158 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
5162 /* Try runtime/protocol */
5163 image
= (__le32
*)priv
->ucode_code
.v_addr
;
5164 len
= priv
->ucode_code
.len
;
5165 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5167 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
5171 IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
5173 /* Since nothing seems to match, show first several data entries in
5174 * instruction SRAM, so maybe visual inspection will give a clue.
5175 * Selection of bootstrap image (vs. other images) is arbitrary. */
5176 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5177 len
= priv
->ucode_boot
.len
;
5178 rc
= iwl4965_verify_inst_full(priv
, image
, len
);
5184 /* check contents of special bootstrap uCode SRAM */
5185 static int iwl4965_verify_bsm(struct iwl_priv
*priv
)
5187 __le32
*image
= priv
->ucode_boot
.v_addr
;
5188 u32 len
= priv
->ucode_boot
.len
;
5192 IWL_DEBUG_INFO("Begin verify bsm\n");
5194 /* verify BSM SRAM contents */
5195 val
= iwl4965_read_prph(priv
, BSM_WR_DWCOUNT_REG
);
5196 for (reg
= BSM_SRAM_LOWER_BOUND
;
5197 reg
< BSM_SRAM_LOWER_BOUND
+ len
;
5198 reg
+= sizeof(u32
), image
++) {
5199 val
= iwl4965_read_prph(priv
, reg
);
5200 if (val
!= le32_to_cpu(*image
)) {
5201 IWL_ERROR("BSM uCode verification failed at "
5202 "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
5203 BSM_SRAM_LOWER_BOUND
,
5204 reg
- BSM_SRAM_LOWER_BOUND
, len
,
5205 val
, le32_to_cpu(*image
));
5210 IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
5216 * iwl4965_load_bsm - Load bootstrap instructions
5220 * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
5221 * in special SRAM that does not power down during RFKILL. When powering back
5222 * up after power-saving sleeps (or during initial uCode load), the BSM loads
5223 * the bootstrap program into the on-board processor, and starts it.
5225 * The bootstrap program loads (via DMA) instructions and data for a new
5226 * program from host DRAM locations indicated by the host driver in the
5227 * BSM_DRAM_* registers. Once the new program is loaded, it starts
5230 * When initializing the NIC, the host driver points the BSM to the
5231 * "initialize" uCode image. This uCode sets up some internal data, then
5232 * notifies host via "initialize alive" that it is complete.
5234 * The host then replaces the BSM_DRAM_* pointer values to point to the
5235 * normal runtime uCode instructions and a backup uCode data cache buffer
5236 * (filled initially with starting data values for the on-board processor),
5237 * then triggers the "initialize" uCode to load and launch the runtime uCode,
5238 * which begins normal operation.
5240 * When doing a power-save shutdown, runtime uCode saves data SRAM into
5241 * the backup data cache in DRAM before SRAM is powered down.
5243 * When powering back up, the BSM loads the bootstrap program. This reloads
5244 * the runtime uCode instructions and the backup data cache into SRAM,
5245 * and re-launches the runtime uCode from where it left off.
5247 static int iwl4965_load_bsm(struct iwl_priv
*priv
)
5249 __le32
*image
= priv
->ucode_boot
.v_addr
;
5250 u32 len
= priv
->ucode_boot
.len
;
5260 IWL_DEBUG_INFO("Begin load bsm\n");
5262 /* make sure bootstrap program is no larger than BSM's SRAM size */
5263 if (len
> IWL_MAX_BSM_SIZE
)
5266 /* Tell bootstrap uCode where to find the "Initialize" uCode
5267 * in host DRAM ... host DRAM physical address bits 35:4 for 4965.
5268 * NOTE: iwl4965_initialize_alive_start() will replace these values,
5269 * after the "initialize" uCode has run, to point to
5270 * runtime/protocol instructions and backup data cache. */
5271 pinst
= priv
->ucode_init
.p_addr
>> 4;
5272 pdata
= priv
->ucode_init_data
.p_addr
>> 4;
5273 inst_len
= priv
->ucode_init
.len
;
5274 data_len
= priv
->ucode_init_data
.len
;
5276 rc
= iwl4965_grab_nic_access(priv
);
5280 iwl4965_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5281 iwl4965_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5282 iwl4965_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
, inst_len
);
5283 iwl4965_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
, data_len
);
5285 /* Fill BSM memory with bootstrap instructions */
5286 for (reg_offset
= BSM_SRAM_LOWER_BOUND
;
5287 reg_offset
< BSM_SRAM_LOWER_BOUND
+ len
;
5288 reg_offset
+= sizeof(u32
), image
++)
5289 _iwl4965_write_prph(priv
, reg_offset
,
5290 le32_to_cpu(*image
));
5292 rc
= iwl4965_verify_bsm(priv
);
5294 iwl4965_release_nic_access(priv
);
5298 /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
5299 iwl4965_write_prph(priv
, BSM_WR_MEM_SRC_REG
, 0x0);
5300 iwl4965_write_prph(priv
, BSM_WR_MEM_DST_REG
,
5301 RTC_INST_LOWER_BOUND
);
5302 iwl4965_write_prph(priv
, BSM_WR_DWCOUNT_REG
, len
/ sizeof(u32
));
5304 /* Load bootstrap code into instruction SRAM now,
5305 * to prepare to load "initialize" uCode */
5306 iwl4965_write_prph(priv
, BSM_WR_CTRL_REG
,
5307 BSM_WR_CTRL_REG_BIT_START
);
5309 /* Wait for load of bootstrap uCode to finish */
5310 for (i
= 0; i
< 100; i
++) {
5311 done
= iwl4965_read_prph(priv
, BSM_WR_CTRL_REG
);
5312 if (!(done
& BSM_WR_CTRL_REG_BIT_START
))
5317 IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i
);
5319 IWL_ERROR("BSM write did not complete!\n");
5323 /* Enable future boot loads whenever power management unit triggers it
5324 * (e.g. when powering back up after power-save shutdown) */
5325 iwl4965_write_prph(priv
, BSM_WR_CTRL_REG
,
5326 BSM_WR_CTRL_REG_BIT_START_EN
);
5328 iwl4965_release_nic_access(priv
);
5333 static void iwl4965_nic_start(struct iwl_priv
*priv
)
5335 /* Remove all resets to allow NIC to operate */
5336 iwl4965_write32(priv
, CSR_RESET
, 0);
5341 * iwl4965_read_ucode - Read uCode images from disk file.
5343 * Copy into buffers for card to fetch via bus-mastering
5345 static int iwl4965_read_ucode(struct iwl_priv
*priv
)
5347 struct iwl4965_ucode
*ucode
;
5349 const struct firmware
*ucode_raw
;
5350 const char *name
= priv
->cfg
->fw_name
;
5353 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
5355 /* Ask kernel firmware_class module to get the boot firmware off disk.
5356 * request_firmware() is synchronous, file is in memory on return. */
5357 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
5359 IWL_ERROR("%s firmware file req failed: Reason %d\n",
5364 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
5365 name
, ucode_raw
->size
);
5367 /* Make sure that we got at least our header! */
5368 if (ucode_raw
->size
< sizeof(*ucode
)) {
5369 IWL_ERROR("File size way too small!\n");
5374 /* Data from ucode file: header followed by uCode images */
5375 ucode
= (void *)ucode_raw
->data
;
5377 ver
= le32_to_cpu(ucode
->ver
);
5378 inst_size
= le32_to_cpu(ucode
->inst_size
);
5379 data_size
= le32_to_cpu(ucode
->data_size
);
5380 init_size
= le32_to_cpu(ucode
->init_size
);
5381 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
5382 boot_size
= le32_to_cpu(ucode
->boot_size
);
5384 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
5385 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
5387 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
5389 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
5391 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
5393 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
5396 /* Verify size of file vs. image size info in file's header */
5397 if (ucode_raw
->size
< sizeof(*ucode
) +
5398 inst_size
+ data_size
+ init_size
+
5399 init_data_size
+ boot_size
) {
5401 IWL_DEBUG_INFO("uCode file size %d too small\n",
5402 (int)ucode_raw
->size
);
5407 /* Verify that uCode images will fit in card's SRAM */
5408 if (inst_size
> IWL_MAX_INST_SIZE
) {
5409 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
5415 if (data_size
> IWL_MAX_DATA_SIZE
) {
5416 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
5421 if (init_size
> IWL_MAX_INST_SIZE
) {
5423 ("uCode init instr len %d too large to fit in\n",
5428 if (init_data_size
> IWL_MAX_DATA_SIZE
) {
5430 ("uCode init data len %d too large to fit in\n",
5435 if (boot_size
> IWL_MAX_BSM_SIZE
) {
5437 ("uCode boot instr len %d too large to fit in\n",
5443 /* Allocate ucode buffers for card's bus-master loading ... */
5445 /* Runtime instructions and 2 copies of data:
5446 * 1) unmodified from disk
5447 * 2) backup cache for save/restore during power-downs */
5448 priv
->ucode_code
.len
= inst_size
;
5449 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5451 priv
->ucode_data
.len
= data_size
;
5452 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5454 priv
->ucode_data_backup
.len
= data_size
;
5455 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5457 /* Initialization instructions and data */
5458 if (init_size
&& init_data_size
) {
5459 priv
->ucode_init
.len
= init_size
;
5460 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5462 priv
->ucode_init_data
.len
= init_data_size
;
5463 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5465 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
5469 /* Bootstrap (instructions only, no data) */
5471 priv
->ucode_boot
.len
= boot_size
;
5472 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5474 if (!priv
->ucode_boot
.v_addr
)
5478 /* Copy images into buffers for card's bus-master reads ... */
5480 /* Runtime instructions (first block of data in file) */
5481 src
= &ucode
->data
[0];
5482 len
= priv
->ucode_code
.len
;
5483 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
5484 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
5485 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
5486 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
5488 /* Runtime data (2nd block)
5489 * NOTE: Copy into backup buffer will be done in iwl4965_up() */
5490 src
= &ucode
->data
[inst_size
];
5491 len
= priv
->ucode_data
.len
;
5492 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
5493 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
5494 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
5496 /* Initialization instructions (3rd block) */
5498 src
= &ucode
->data
[inst_size
+ data_size
];
5499 len
= priv
->ucode_init
.len
;
5500 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
5502 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
5505 /* Initialization data (4th block) */
5506 if (init_data_size
) {
5507 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
5508 len
= priv
->ucode_init_data
.len
;
5509 IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
5511 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
5514 /* Bootstrap instructions (5th block) */
5515 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
5516 len
= priv
->ucode_boot
.len
;
5517 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len
);
5518 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
5520 /* We have our copies now, allow OS release its copies */
5521 release_firmware(ucode_raw
);
5525 IWL_ERROR("failed to allocate pci memory\n");
5527 iwl4965_dealloc_ucode_pci(priv
);
5530 release_firmware(ucode_raw
);
5538 * iwl4965_set_ucode_ptrs - Set uCode address location
5540 * Tell initialization uCode where to find runtime uCode.
5542 * BSM registers initially contain pointers to initialization uCode.
5543 * We need to replace them to load runtime uCode inst and data,
5544 * and to save runtime data when powering down.
5546 static int iwl4965_set_ucode_ptrs(struct iwl_priv
*priv
)
5551 unsigned long flags
;
5553 /* bits 35:4 for 4965 */
5554 pinst
= priv
->ucode_code
.p_addr
>> 4;
5555 pdata
= priv
->ucode_data_backup
.p_addr
>> 4;
5557 spin_lock_irqsave(&priv
->lock
, flags
);
5558 rc
= iwl4965_grab_nic_access(priv
);
5560 spin_unlock_irqrestore(&priv
->lock
, flags
);
5564 /* Tell bootstrap uCode where to find image to load */
5565 iwl4965_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5566 iwl4965_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5567 iwl4965_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
,
5568 priv
->ucode_data
.len
);
5570 /* Inst bytecount must be last to set up, bit 31 signals uCode
5571 * that all new ptr/size info is in place */
5572 iwl4965_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
,
5573 priv
->ucode_code
.len
| BSM_DRAM_INST_LOAD
);
5575 iwl4965_release_nic_access(priv
);
5577 spin_unlock_irqrestore(&priv
->lock
, flags
);
5579 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
5585 * iwl4965_init_alive_start - Called after REPLY_ALIVE notification received
5587 * Called after REPLY_ALIVE notification received from "initialize" uCode.
5589 * The 4965 "initialize" ALIVE reply contains calibration data for:
5590 * Voltage, temperature, and MIMO tx gain correction, now stored in priv
5591 * (3945 does not contain this data).
5593 * Tell "initialize" uCode to go ahead and load the runtime uCode.
5595 static void iwl4965_init_alive_start(struct iwl_priv
*priv
)
5597 /* Check alive response for "valid" sign from uCode */
5598 if (priv
->card_alive_init
.is_valid
!= UCODE_VALID_OK
) {
5599 /* We had an error bringing up the hardware, so take it
5600 * all the way back down so we can try again */
5601 IWL_DEBUG_INFO("Initialize Alive failed.\n");
5605 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
5606 * This is a paranoid check, because we would not have gotten the
5607 * "initialize" alive if code weren't properly loaded. */
5608 if (iwl4965_verify_ucode(priv
)) {
5609 /* Runtime instruction load was bad;
5610 * take it all the way back down so we can try again */
5611 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
5615 /* Calculate temperature */
5616 priv
->temperature
= iwl4965_get_temperature(priv
);
5618 /* Send pointers to protocol/runtime uCode image ... init code will
5619 * load and launch runtime uCode, which will send us another "Alive"
5621 IWL_DEBUG_INFO("Initialization Alive received.\n");
5622 if (iwl4965_set_ucode_ptrs(priv
)) {
5623 /* Runtime instruction load won't happen;
5624 * take it all the way back down so we can try again */
5625 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
5631 queue_work(priv
->workqueue
, &priv
->restart
);
5636 * iwl4965_alive_start - called after REPLY_ALIVE notification received
5637 * from protocol/runtime uCode (initialization uCode's
5638 * Alive gets handled by iwl4965_init_alive_start()).
5640 static void iwl4965_alive_start(struct iwl_priv
*priv
)
5644 IWL_DEBUG_INFO("Runtime Alive received.\n");
5646 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
5647 /* We had an error bringing up the hardware, so take it
5648 * all the way back down so we can try again */
5649 IWL_DEBUG_INFO("Alive failed.\n");
5653 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
5654 * This is a paranoid check, because we would not have gotten the
5655 * "runtime" alive if code weren't properly loaded. */
5656 if (iwl4965_verify_ucode(priv
)) {
5657 /* Runtime instruction load was bad;
5658 * take it all the way back down so we can try again */
5659 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
5663 iwlcore_clear_stations_table(priv
);
5665 rc
= iwl4965_alive_notify(priv
);
5667 IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
5672 /* After the ALIVE response, we can send host commands to 4965 uCode */
5673 set_bit(STATUS_ALIVE
, &priv
->status
);
5675 /* Clear out the uCode error bit if it is set */
5676 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
5678 if (iwl4965_is_rfkill(priv
))
5681 ieee80211_start_queues(priv
->hw
);
5683 priv
->active_rate
= priv
->rates_mask
;
5684 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
5686 iwl4965_send_power_mode(priv
, IWL_POWER_LEVEL(priv
->power_mode
));
5688 if (iwl4965_is_associated(priv
)) {
5689 struct iwl4965_rxon_cmd
*active_rxon
=
5690 (struct iwl4965_rxon_cmd
*)(&priv
->active_rxon
);
5692 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
5693 sizeof(priv
->staging_rxon
));
5694 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5696 /* Initialize our rx_config data */
5697 iwl4965_connection_init_rx_config(priv
);
5698 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
5701 /* Configure Bluetooth device coexistence support */
5702 iwl4965_send_bt_config(priv
);
5704 /* Configure the adapter for unassociated operation */
5705 iwl4965_commit_rxon(priv
);
5707 /* At this point, the NIC is initialized and operational */
5708 priv
->notif_missed_beacons
= 0;
5709 set_bit(STATUS_READY
, &priv
->status
);
5711 iwl4965_rf_kill_ct_config(priv
);
5713 IWL_DEBUG_INFO("ALIVE processing complete.\n");
5714 wake_up_interruptible(&priv
->wait_command_queue
);
5716 iwl_leds_register(priv
);
5718 if (priv
->error_recovering
)
5719 iwl4965_error_recovery(priv
);
5724 queue_work(priv
->workqueue
, &priv
->restart
);
5727 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
);
5729 static void __iwl4965_down(struct iwl_priv
*priv
)
5731 unsigned long flags
;
5732 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5733 struct ieee80211_conf
*conf
= NULL
;
5735 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
5737 conf
= ieee80211_get_hw_conf(priv
->hw
);
5740 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5742 iwl_leds_unregister(priv
);
5744 iwlcore_clear_stations_table(priv
);
5746 /* Unblock any waiting calls */
5747 wake_up_interruptible_all(&priv
->wait_command_queue
);
5749 /* Wipe out the EXIT_PENDING status bit if we are not actually
5750 * exiting the module */
5752 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5754 /* stop and reset the on-board processor */
5755 iwl4965_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
5757 /* tell the device to stop sending interrupts */
5758 iwl4965_disable_interrupts(priv
);
5760 if (priv
->mac80211_registered
)
5761 ieee80211_stop_queues(priv
->hw
);
5763 /* If we have not previously called iwl4965_init() then
5764 * clear all bits but the RF Kill and SUSPEND bits and return */
5765 if (!iwl4965_is_init(priv
)) {
5766 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5768 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5770 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5771 STATUS_GEO_CONFIGURED
|
5772 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5777 /* ...otherwise clear out all the status bits but the RF Kill and
5778 * SUSPEND bits and continue taking the NIC down. */
5779 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5781 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5783 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5784 STATUS_GEO_CONFIGURED
|
5785 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5787 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
5790 spin_lock_irqsave(&priv
->lock
, flags
);
5791 iwl4965_clear_bit(priv
, CSR_GP_CNTRL
,
5792 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
5793 spin_unlock_irqrestore(&priv
->lock
, flags
);
5795 iwl4965_hw_txq_ctx_stop(priv
);
5796 iwl4965_hw_rxq_stop(priv
);
5798 spin_lock_irqsave(&priv
->lock
, flags
);
5799 if (!iwl4965_grab_nic_access(priv
)) {
5800 iwl4965_write_prph(priv
, APMG_CLK_DIS_REG
,
5801 APMG_CLK_VAL_DMA_CLK_RQT
);
5802 iwl4965_release_nic_access(priv
);
5804 spin_unlock_irqrestore(&priv
->lock
, flags
);
5808 iwl4965_hw_nic_stop_master(priv
);
5809 iwl4965_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
5810 iwl4965_hw_nic_reset(priv
);
5813 memset(&priv
->card_alive
, 0, sizeof(struct iwl4965_alive_resp
));
5815 if (priv
->ibss_beacon
)
5816 dev_kfree_skb(priv
->ibss_beacon
);
5817 priv
->ibss_beacon
= NULL
;
5819 /* clear out any free frames */
5820 iwl4965_clear_free_frames(priv
);
5823 static void iwl4965_down(struct iwl_priv
*priv
)
5825 mutex_lock(&priv
->mutex
);
5826 __iwl4965_down(priv
);
5827 mutex_unlock(&priv
->mutex
);
5829 iwl4965_cancel_deferred_work(priv
);
5832 #define MAX_HW_RESTARTS 5
5834 static int __iwl4965_up(struct iwl_priv
*priv
)
5838 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
5839 IWL_WARNING("Exit pending; will not bring the NIC up\n");
5843 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
5844 IWL_WARNING("Radio disabled by SW RF kill (module "
5849 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
5850 IWL_ERROR("ucode not available for device bringup\n");
5854 /* If platform's RF_KILL switch is NOT set to KILL */
5855 if (iwl4965_read32(priv
, CSR_GP_CNTRL
) &
5856 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
5857 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5859 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5860 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
5861 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
5866 iwl4965_write32(priv
, CSR_INT
, 0xFFFFFFFF);
5868 rc
= iwl4965_hw_nic_init(priv
);
5870 IWL_ERROR("Unable to int nic\n");
5874 /* 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
,
5877 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
5879 /* clear (again), then enable host interrupts */
5880 iwl4965_write32(priv
, CSR_INT
, 0xFFFFFFFF);
5881 iwl4965_enable_interrupts(priv
);
5883 /* really make sure rfkill handshake bits are cleared */
5884 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5885 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5887 /* Copy original ucode data image from disk into backup cache.
5888 * This will be used to initialize the on-board processor's
5889 * data SRAM for a clean start when the runtime program first loads. */
5890 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
5891 priv
->ucode_data
.len
);
5893 /* We return success when we resume from suspend and rf_kill is on. */
5894 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
5897 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
5899 iwlcore_clear_stations_table(priv
);
5901 /* load bootstrap state machine,
5902 * load bootstrap program into processor's memory,
5903 * prepare to load the "initialize" uCode */
5904 rc
= iwl4965_load_bsm(priv
);
5907 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc
);
5911 /* start card; "initialize" will load runtime ucode */
5912 iwl4965_nic_start(priv
);
5914 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
5919 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5920 __iwl4965_down(priv
);
5922 /* tried to restart and config the device for as long as our
5923 * patience could withstand */
5924 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
5929 /*****************************************************************************
5931 * Workqueue callbacks
5933 *****************************************************************************/
5935 static void iwl4965_bg_init_alive_start(struct work_struct
*data
)
5937 struct iwl_priv
*priv
=
5938 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
5940 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5943 mutex_lock(&priv
->mutex
);
5944 iwl4965_init_alive_start(priv
);
5945 mutex_unlock(&priv
->mutex
);
5948 static void iwl4965_bg_alive_start(struct work_struct
*data
)
5950 struct iwl_priv
*priv
=
5951 container_of(data
, struct iwl_priv
, alive_start
.work
);
5953 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5956 mutex_lock(&priv
->mutex
);
5957 iwl4965_alive_start(priv
);
5958 mutex_unlock(&priv
->mutex
);
5961 static void iwl4965_bg_rf_kill(struct work_struct
*work
)
5963 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, rf_kill
);
5965 wake_up_interruptible(&priv
->wait_command_queue
);
5967 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5970 mutex_lock(&priv
->mutex
);
5972 if (!iwl4965_is_rfkill(priv
)) {
5973 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
,
5974 "HW and/or SW RF Kill no longer active, restarting "
5976 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5977 queue_work(priv
->workqueue
, &priv
->restart
);
5980 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
5981 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
5982 "disabled by SW switch\n");
5984 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
5985 "Kill switch must be turned off for "
5986 "wireless networking to work.\n");
5988 mutex_unlock(&priv
->mutex
);
5991 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
5993 static void iwl4965_bg_scan_check(struct work_struct
*data
)
5995 struct iwl_priv
*priv
=
5996 container_of(data
, struct iwl_priv
, scan_check
.work
);
5998 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6001 mutex_lock(&priv
->mutex
);
6002 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
6003 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6004 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
,
6005 "Scan completion watchdog resetting adapter (%dms)\n",
6006 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
6008 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6009 iwl4965_send_scan_abort(priv
);
6011 mutex_unlock(&priv
->mutex
);
6014 static void iwl4965_bg_request_scan(struct work_struct
*data
)
6016 struct iwl_priv
*priv
=
6017 container_of(data
, struct iwl_priv
, request_scan
);
6018 struct iwl_host_cmd cmd
= {
6019 .id
= REPLY_SCAN_CMD
,
6020 .len
= sizeof(struct iwl4965_scan_cmd
),
6021 .meta
.flags
= CMD_SIZE_HUGE
,
6023 struct iwl4965_scan_cmd
*scan
;
6024 struct ieee80211_conf
*conf
= NULL
;
6026 enum ieee80211_band band
;
6030 conf
= ieee80211_get_hw_conf(priv
->hw
);
6032 mutex_lock(&priv
->mutex
);
6034 if (!iwl4965_is_ready(priv
)) {
6035 IWL_WARNING("request scan called when driver not ready.\n");
6039 /* Make sure the scan wasn't cancelled before this queued work
6040 * was given the chance to run... */
6041 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
6044 /* This should never be called or scheduled if there is currently
6045 * a scan active in the hardware. */
6046 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
6047 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
6048 "Ignoring second request.\n");
6053 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
6054 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
6058 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6059 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
6063 if (iwl4965_is_rfkill(priv
)) {
6064 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
6068 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6069 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
6073 if (!priv
->scan_bands
) {
6074 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
6079 priv
->scan
= kmalloc(sizeof(struct iwl4965_scan_cmd
) +
6080 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
6087 memset(scan
, 0, sizeof(struct iwl4965_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
6089 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
6090 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
6092 if (iwl4965_is_associated(priv
)) {
6095 u32 suspend_time
= 100;
6096 u32 scan_suspend_time
= 100;
6097 unsigned long flags
;
6099 IWL_DEBUG_INFO("Scanning while associated...\n");
6101 spin_lock_irqsave(&priv
->lock
, flags
);
6102 interval
= priv
->beacon_int
;
6103 spin_unlock_irqrestore(&priv
->lock
, flags
);
6105 scan
->suspend_time
= 0;
6106 scan
->max_out_time
= cpu_to_le32(200 * 1024);
6108 interval
= suspend_time
;
6110 extra
= (suspend_time
/ interval
) << 22;
6111 scan_suspend_time
= (extra
|
6112 ((suspend_time
% interval
) * 1024));
6113 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
6114 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
6115 scan_suspend_time
, interval
);
6118 /* We should add the ability for user to lock to PASSIVE ONLY */
6119 if (priv
->one_direct_scan
) {
6121 ("Kicking off one direct scan for '%s'\n",
6122 iwl4965_escape_essid(priv
->direct_ssid
,
6123 priv
->direct_ssid_len
));
6124 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6125 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
6126 memcpy(scan
->direct_scan
[0].ssid
,
6127 priv
->direct_ssid
, priv
->direct_ssid_len
);
6129 } else if (!iwl4965_is_associated(priv
) && priv
->essid_len
) {
6130 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6131 scan
->direct_scan
[0].len
= priv
->essid_len
;
6132 memcpy(scan
->direct_scan
[0].ssid
, priv
->essid
, priv
->essid_len
);
6138 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
6139 scan
->tx_cmd
.sta_id
= priv
->hw_setting
.bcast_sta_id
;
6140 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
6143 switch (priv
->scan_bands
) {
6145 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
6146 scan
->tx_cmd
.rate_n_flags
=
6147 iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP
,
6148 RATE_MCS_ANT_B_MSK
|RATE_MCS_CCK_MSK
);
6150 scan
->good_CRC_th
= 0;
6151 band
= IEEE80211_BAND_2GHZ
;
6155 scan
->tx_cmd
.rate_n_flags
=
6156 iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP
,
6157 RATE_MCS_ANT_B_MSK
);
6158 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
6159 band
= IEEE80211_BAND_5GHZ
;
6163 IWL_WARNING("Invalid scan band count\n");
6167 /* We don't build a direct scan probe request; the uCode will do
6168 * that based on the direct_mask added to each channel entry */
6169 cmd_len
= iwl4965_fill_probe_req(priv
, band
,
6170 (struct ieee80211_mgmt
*)scan
->data
,
6171 IWL_MAX_SCAN_SIZE
- sizeof(*scan
), 0);
6173 scan
->tx_cmd
.len
= cpu_to_le16(cmd_len
);
6174 /* select Rx chains */
6176 /* Force use of chains B and C (0x6) for scan Rx.
6177 * Avoid A (0x1) because of its off-channel reception on A-band.
6178 * MIMO is not used here, but value is required to make uCode happy. */
6179 scan
->rx_chain
= RXON_RX_CHAIN_DRIVER_FORCE_MSK
|
6180 cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS
) |
6181 (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS
) |
6182 (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS
));
6184 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
)
6185 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
6189 ("Initiating direct scan for %s.\n",
6190 iwl4965_escape_essid(priv
->essid
, priv
->essid_len
));
6191 scan
->channel_count
=
6192 iwl4965_get_channels_for_scan(
6193 priv
, band
, 1, /* active */
6195 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6197 IWL_DEBUG_SCAN("Initiating indirect scan.\n");
6198 scan
->channel_count
=
6199 iwl4965_get_channels_for_scan(
6200 priv
, band
, 0, /* passive */
6202 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6205 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
6206 scan
->channel_count
* sizeof(struct iwl4965_scan_channel
);
6208 scan
->len
= cpu_to_le16(cmd
.len
);
6210 set_bit(STATUS_SCAN_HW
, &priv
->status
);
6211 ret
= iwl_send_cmd_sync(priv
, &cmd
);
6215 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
6216 IWL_SCAN_CHECK_WATCHDOG
);
6218 mutex_unlock(&priv
->mutex
);
6222 /* inform mac80211 scan aborted */
6223 queue_work(priv
->workqueue
, &priv
->scan_completed
);
6224 mutex_unlock(&priv
->mutex
);
6227 static void iwl4965_bg_up(struct work_struct
*data
)
6229 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, up
);
6231 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6234 mutex_lock(&priv
->mutex
);
6236 mutex_unlock(&priv
->mutex
);
6239 static void iwl4965_bg_restart(struct work_struct
*data
)
6241 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
6243 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6247 queue_work(priv
->workqueue
, &priv
->up
);
6250 static void iwl4965_bg_rx_replenish(struct work_struct
*data
)
6252 struct iwl_priv
*priv
=
6253 container_of(data
, struct iwl_priv
, rx_replenish
);
6255 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6258 mutex_lock(&priv
->mutex
);
6259 iwl4965_rx_replenish(priv
);
6260 mutex_unlock(&priv
->mutex
);
6263 #define IWL_DELAY_NEXT_SCAN (HZ*2)
6265 static void iwl4965_bg_post_associate(struct work_struct
*data
)
6267 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
,
6268 post_associate
.work
);
6269 struct ieee80211_conf
*conf
= NULL
;
6271 DECLARE_MAC_BUF(mac
);
6273 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6274 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
6278 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
6280 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
6283 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6286 mutex_lock(&priv
->mutex
);
6288 if (!priv
->vif
|| !priv
->is_open
) {
6289 mutex_unlock(&priv
->mutex
);
6292 iwl4965_scan_cancel_timeout(priv
, 200);
6294 conf
= ieee80211_get_hw_conf(priv
->hw
);
6296 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6297 iwl4965_commit_rxon(priv
);
6299 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
6300 iwl4965_setup_rxon_timing(priv
);
6301 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6302 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6304 IWL_WARNING("REPLY_RXON_TIMING failed - "
6305 "Attempting to continue.\n");
6307 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6309 #ifdef CONFIG_IWL4965_HT
6310 if (priv
->current_ht_config
.is_ht
)
6311 iwl4965_set_rxon_ht(priv
, &priv
->current_ht_config
);
6312 #endif /* CONFIG_IWL4965_HT*/
6313 iwl4965_set_rxon_chain(priv
);
6314 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6316 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
6317 priv
->assoc_id
, priv
->beacon_int
);
6319 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6320 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6322 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6324 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6325 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6326 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
6328 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6330 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6331 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6335 iwl4965_commit_rxon(priv
);
6337 switch (priv
->iw_mode
) {
6338 case IEEE80211_IF_TYPE_STA
:
6339 iwl4965_rate_scale_init(priv
->hw
, IWL_AP_ID
);
6342 case IEEE80211_IF_TYPE_IBSS
:
6344 /* clear out the station table */
6345 iwlcore_clear_stations_table(priv
);
6347 iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0);
6348 iwl4965_rxon_add_station(priv
, priv
->bssid
, 0);
6349 iwl4965_rate_scale_init(priv
->hw
, IWL_STA_ID
);
6350 iwl4965_send_beacon_cmd(priv
);
6355 IWL_ERROR("%s Should not be called in %d mode\n",
6356 __FUNCTION__
, priv
->iw_mode
);
6360 iwl4965_sequence_reset(priv
);
6362 #ifdef CONFIG_IWL4965_SENSITIVITY
6363 /* Enable Rx differential gain and sensitivity calibrations */
6364 iwl4965_chain_noise_reset(priv
);
6365 priv
->start_calib
= 1;
6366 #endif /* CONFIG_IWL4965_SENSITIVITY */
6368 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6369 priv
->assoc_station_added
= 1;
6371 iwl4965_activate_qos(priv
, 0);
6373 /* we have just associated, don't start scan too early */
6374 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
6375 mutex_unlock(&priv
->mutex
);
6378 static void iwl4965_bg_abort_scan(struct work_struct
*work
)
6380 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, abort_scan
);
6382 if (!iwl4965_is_ready(priv
))
6385 mutex_lock(&priv
->mutex
);
6387 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
6388 iwl4965_send_scan_abort(priv
);
6390 mutex_unlock(&priv
->mutex
);
6393 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
6395 static void iwl4965_bg_scan_completed(struct work_struct
*work
)
6397 struct iwl_priv
*priv
=
6398 container_of(work
, struct iwl_priv
, scan_completed
);
6400 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
, "SCAN complete scan\n");
6402 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6405 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
6406 iwl4965_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
6408 ieee80211_scan_completed(priv
->hw
);
6410 /* Since setting the TXPOWER may have been deferred while
6411 * performing the scan, fire one off */
6412 mutex_lock(&priv
->mutex
);
6413 iwl4965_hw_reg_send_txpower(priv
);
6414 mutex_unlock(&priv
->mutex
);
6417 /*****************************************************************************
6419 * mac80211 entry point functions
6421 *****************************************************************************/
6423 #define UCODE_READY_TIMEOUT (2 * HZ)
6425 static int iwl4965_mac_start(struct ieee80211_hw
*hw
)
6427 struct iwl_priv
*priv
= hw
->priv
;
6430 IWL_DEBUG_MAC80211("enter\n");
6432 if (pci_enable_device(priv
->pci_dev
)) {
6433 IWL_ERROR("Fail to pci_enable_device\n");
6436 pci_restore_state(priv
->pci_dev
);
6437 pci_enable_msi(priv
->pci_dev
);
6439 ret
= request_irq(priv
->pci_dev
->irq
, iwl4965_isr
, IRQF_SHARED
,
6442 IWL_ERROR("Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
6443 goto out_disable_msi
;
6446 /* we should be verifying the device is ready to be opened */
6447 mutex_lock(&priv
->mutex
);
6449 memset(&priv
->staging_rxon
, 0, sizeof(struct iwl4965_rxon_cmd
));
6450 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
6451 * ucode filename and max sizes are card-specific. */
6453 if (!priv
->ucode_code
.len
) {
6454 ret
= iwl4965_read_ucode(priv
);
6456 IWL_ERROR("Could not read microcode: %d\n", ret
);
6457 mutex_unlock(&priv
->mutex
);
6458 goto out_release_irq
;
6462 ret
= __iwl4965_up(priv
);
6464 mutex_unlock(&priv
->mutex
);
6467 goto out_release_irq
;
6469 IWL_DEBUG_INFO("Start UP work done.\n");
6471 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
6474 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
6475 * mac80211 will not be run successfully. */
6476 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
6477 test_bit(STATUS_READY
, &priv
->status
),
6478 UCODE_READY_TIMEOUT
);
6480 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6481 IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
6482 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
6484 goto out_release_irq
;
6489 IWL_DEBUG_MAC80211("leave\n");
6493 free_irq(priv
->pci_dev
->irq
, priv
);
6495 pci_disable_msi(priv
->pci_dev
);
6496 pci_disable_device(priv
->pci_dev
);
6498 IWL_DEBUG_MAC80211("leave - failed\n");
6502 static void iwl4965_mac_stop(struct ieee80211_hw
*hw
)
6504 struct iwl_priv
*priv
= hw
->priv
;
6506 IWL_DEBUG_MAC80211("enter\n");
6508 if (!priv
->is_open
) {
6509 IWL_DEBUG_MAC80211("leave - skip\n");
6515 if (iwl4965_is_ready_rf(priv
)) {
6516 /* stop mac, cancel any scan request and clear
6517 * RXON_FILTER_ASSOC_MSK BIT
6519 mutex_lock(&priv
->mutex
);
6520 iwl4965_scan_cancel_timeout(priv
, 100);
6521 cancel_delayed_work(&priv
->post_associate
);
6522 mutex_unlock(&priv
->mutex
);
6527 flush_workqueue(priv
->workqueue
);
6528 free_irq(priv
->pci_dev
->irq
, priv
);
6529 pci_disable_msi(priv
->pci_dev
);
6530 pci_save_state(priv
->pci_dev
);
6531 pci_disable_device(priv
->pci_dev
);
6533 IWL_DEBUG_MAC80211("leave\n");
6536 static int iwl4965_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
6537 struct ieee80211_tx_control
*ctl
)
6539 struct iwl_priv
*priv
= hw
->priv
;
6541 IWL_DEBUG_MAC80211("enter\n");
6543 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
6544 IWL_DEBUG_MAC80211("leave - monitor\n");
6548 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
6549 ctl
->tx_rate
->bitrate
);
6551 if (iwl4965_tx_skb(priv
, skb
, ctl
))
6552 dev_kfree_skb_any(skb
);
6554 IWL_DEBUG_MAC80211("leave\n");
6558 static int iwl4965_mac_add_interface(struct ieee80211_hw
*hw
,
6559 struct ieee80211_if_init_conf
*conf
)
6561 struct iwl_priv
*priv
= hw
->priv
;
6562 unsigned long flags
;
6563 DECLARE_MAC_BUF(mac
);
6565 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
6568 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
6572 spin_lock_irqsave(&priv
->lock
, flags
);
6573 priv
->vif
= conf
->vif
;
6575 spin_unlock_irqrestore(&priv
->lock
, flags
);
6577 mutex_lock(&priv
->mutex
);
6579 if (conf
->mac_addr
) {
6580 IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac
, conf
->mac_addr
));
6581 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
6584 if (iwl4965_is_ready(priv
))
6585 iwl4965_set_mode(priv
, conf
->type
);
6587 mutex_unlock(&priv
->mutex
);
6589 IWL_DEBUG_MAC80211("leave\n");
6594 * iwl4965_mac_config - mac80211 config callback
6596 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
6597 * be set inappropriately and the driver currently sets the hardware up to
6598 * use it whenever needed.
6600 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
6602 struct iwl_priv
*priv
= hw
->priv
;
6603 const struct iwl_channel_info
*ch_info
;
6604 unsigned long flags
;
6607 mutex_lock(&priv
->mutex
);
6608 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
6610 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
6612 if (!iwl4965_is_ready(priv
)) {
6613 IWL_DEBUG_MAC80211("leave - not ready\n");
6618 if (unlikely(!priv
->cfg
->mod_params
->disable_hw_scan
&&
6619 test_bit(STATUS_SCANNING
, &priv
->status
))) {
6620 IWL_DEBUG_MAC80211("leave - scanning\n");
6621 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
6622 mutex_unlock(&priv
->mutex
);
6626 spin_lock_irqsave(&priv
->lock
, flags
);
6628 ch_info
= iwl_get_channel_info(priv
, conf
->channel
->band
,
6629 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
6630 if (!is_channel_valid(ch_info
)) {
6631 IWL_DEBUG_MAC80211("leave - invalid channel\n");
6632 spin_unlock_irqrestore(&priv
->lock
, flags
);
6637 #ifdef CONFIG_IWL4965_HT
6638 /* if we are switching from ht to 2.4 clear flags
6639 * from any ht related info since 2.4 does not
6641 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != conf
->channel
->hw_value
)
6642 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
6643 && !(conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
)
6646 priv
->staging_rxon
.flags
= 0;
6647 #endif /* CONFIG_IWL4965_HT */
6649 iwlcore_set_rxon_channel(priv
, conf
->channel
->band
,
6650 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
6652 iwl4965_set_flags_for_phymode(priv
, conf
->channel
->band
);
6654 /* The list of supported rates and rate mask can be different
6655 * for each band; since the band may have changed, reset
6656 * the rate mask to what mac80211 lists */
6657 iwl4965_set_rate(priv
);
6659 spin_unlock_irqrestore(&priv
->lock
, flags
);
6661 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
6662 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
6663 iwl4965_hw_channel_switch(priv
, conf
->channel
);
6668 iwl4965_radio_kill_sw(priv
, !conf
->radio_enabled
);
6670 if (!conf
->radio_enabled
) {
6671 IWL_DEBUG_MAC80211("leave - radio disabled\n");
6675 if (iwl4965_is_rfkill(priv
)) {
6676 IWL_DEBUG_MAC80211("leave - RF kill\n");
6681 iwl4965_set_rate(priv
);
6683 if (memcmp(&priv
->active_rxon
,
6684 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
6685 iwl4965_commit_rxon(priv
);
6687 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
6689 IWL_DEBUG_MAC80211("leave\n");
6692 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
6693 mutex_unlock(&priv
->mutex
);
6697 static void iwl4965_config_ap(struct iwl_priv
*priv
)
6701 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6704 /* The following should be done only at AP bring up */
6705 if ((priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) == 0) {
6707 /* RXON - unassoc (to set timing command) */
6708 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6709 iwl4965_commit_rxon(priv
);
6712 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
6713 iwl4965_setup_rxon_timing(priv
);
6714 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6715 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6717 IWL_WARNING("REPLY_RXON_TIMING failed - "
6718 "Attempting to continue.\n");
6720 iwl4965_set_rxon_chain(priv
);
6722 /* FIXME: what should be the assoc_id for AP? */
6723 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6724 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6725 priv
->staging_rxon
.flags
|=
6726 RXON_FLG_SHORT_PREAMBLE_MSK
;
6728 priv
->staging_rxon
.flags
&=
6729 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6731 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6732 if (priv
->assoc_capability
&
6733 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6734 priv
->staging_rxon
.flags
|=
6735 RXON_FLG_SHORT_SLOT_MSK
;
6737 priv
->staging_rxon
.flags
&=
6738 ~RXON_FLG_SHORT_SLOT_MSK
;
6740 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6741 priv
->staging_rxon
.flags
&=
6742 ~RXON_FLG_SHORT_SLOT_MSK
;
6744 /* restore RXON assoc */
6745 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6746 iwl4965_commit_rxon(priv
);
6747 iwl4965_activate_qos(priv
, 1);
6748 iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0);
6750 iwl4965_send_beacon_cmd(priv
);
6752 /* FIXME - we need to add code here to detect a totally new
6753 * configuration, reset the AP, unassoc, rxon timing, assoc,
6754 * clear sta table, add BCAST sta... */
6757 static int iwl4965_mac_config_interface(struct ieee80211_hw
*hw
,
6758 struct ieee80211_vif
*vif
,
6759 struct ieee80211_if_conf
*conf
)
6761 struct iwl_priv
*priv
= hw
->priv
;
6762 DECLARE_MAC_BUF(mac
);
6763 unsigned long flags
;
6769 if (priv
->vif
!= vif
) {
6770 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
6771 mutex_unlock(&priv
->mutex
);
6775 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
6776 (!conf
->beacon
|| !conf
->ssid_len
)) {
6778 ("Leaving in AP mode because HostAPD is not ready.\n");
6782 if (!iwl4965_is_alive(priv
))
6785 mutex_lock(&priv
->mutex
);
6788 IWL_DEBUG_MAC80211("bssid: %s\n",
6789 print_mac(mac
, conf
->bssid
));
6792 * very dubious code was here; the probe filtering flag is never set:
6794 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
6795 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
6798 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6800 conf
->bssid
= priv
->mac_addr
;
6801 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
6802 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
6803 print_mac(mac
, conf
->bssid
));
6805 if (priv
->ibss_beacon
)
6806 dev_kfree_skb(priv
->ibss_beacon
);
6808 priv
->ibss_beacon
= conf
->beacon
;
6811 if (iwl4965_is_rfkill(priv
))
6814 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
6815 !is_multicast_ether_addr(conf
->bssid
)) {
6816 /* If there is currently a HW scan going on in the background
6817 * then we need to cancel it else the RXON below will fail. */
6818 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
6819 IWL_WARNING("Aborted scan still in progress "
6821 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
6822 mutex_unlock(&priv
->mutex
);
6825 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
6827 /* TODO: Audit driver for usage of these members and see
6828 * if mac80211 deprecates them (priv->bssid looks like it
6829 * shouldn't be there, but I haven't scanned the IBSS code
6830 * to verify) - jpk */
6831 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
6833 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
6834 iwl4965_config_ap(priv
);
6836 rc
= iwl4965_commit_rxon(priv
);
6837 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
6838 iwl4965_rxon_add_station(
6839 priv
, priv
->active_rxon
.bssid_addr
, 1);
6843 iwl4965_scan_cancel_timeout(priv
, 100);
6844 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6845 iwl4965_commit_rxon(priv
);
6849 spin_lock_irqsave(&priv
->lock
, flags
);
6850 if (!conf
->ssid_len
)
6851 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
6853 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
6855 priv
->essid_len
= conf
->ssid_len
;
6856 spin_unlock_irqrestore(&priv
->lock
, flags
);
6858 IWL_DEBUG_MAC80211("leave\n");
6859 mutex_unlock(&priv
->mutex
);
6864 static void iwl4965_configure_filter(struct ieee80211_hw
*hw
,
6865 unsigned int changed_flags
,
6866 unsigned int *total_flags
,
6867 int mc_count
, struct dev_addr_list
*mc_list
)
6871 * see also iwl4965_connection_init_rx_config
6876 static void iwl4965_mac_remove_interface(struct ieee80211_hw
*hw
,
6877 struct ieee80211_if_init_conf
*conf
)
6879 struct iwl_priv
*priv
= hw
->priv
;
6881 IWL_DEBUG_MAC80211("enter\n");
6883 mutex_lock(&priv
->mutex
);
6885 if (iwl4965_is_ready_rf(priv
)) {
6886 iwl4965_scan_cancel_timeout(priv
, 100);
6887 cancel_delayed_work(&priv
->post_associate
);
6888 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6889 iwl4965_commit_rxon(priv
);
6891 if (priv
->vif
== conf
->vif
) {
6893 memset(priv
->bssid
, 0, ETH_ALEN
);
6894 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
6895 priv
->essid_len
= 0;
6897 mutex_unlock(&priv
->mutex
);
6899 IWL_DEBUG_MAC80211("leave\n");
6903 static void iwl4965_bss_info_changed(struct ieee80211_hw
*hw
,
6904 struct ieee80211_vif
*vif
,
6905 struct ieee80211_bss_conf
*bss_conf
,
6908 struct iwl_priv
*priv
= hw
->priv
;
6910 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
6911 if (bss_conf
->use_short_preamble
)
6912 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6914 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6917 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
6918 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
6919 priv
->staging_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
6921 priv
->staging_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
6924 if (changes
& BSS_CHANGED_ASSOC
) {
6927 * do stuff instead of sniffing assoc resp
6931 if (iwl4965_is_associated(priv
))
6932 iwl4965_send_rxon_assoc(priv
);
6935 static int iwl4965_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
6938 unsigned long flags
;
6939 struct iwl_priv
*priv
= hw
->priv
;
6941 IWL_DEBUG_MAC80211("enter\n");
6943 mutex_lock(&priv
->mutex
);
6944 spin_lock_irqsave(&priv
->lock
, flags
);
6946 if (!iwl4965_is_ready_rf(priv
)) {
6948 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
6952 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
6954 IWL_ERROR("ERROR: APs don't scan\n");
6958 /* we don't schedule scan within next_scan_jiffies period */
6959 if (priv
->next_scan_jiffies
&&
6960 time_after(priv
->next_scan_jiffies
, jiffies
)) {
6964 /* if we just finished scan ask for delay */
6965 if (priv
->last_scan_jiffies
&& time_after(priv
->last_scan_jiffies
+
6966 IWL_DELAY_NEXT_SCAN
, jiffies
)) {
6971 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
6972 iwl4965_escape_essid(ssid
, len
), (int)len
);
6974 priv
->one_direct_scan
= 1;
6975 priv
->direct_ssid_len
= (u8
)
6976 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
6977 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
6979 priv
->one_direct_scan
= 0;
6981 rc
= iwl4965_scan_initiate(priv
);
6983 IWL_DEBUG_MAC80211("leave\n");
6986 spin_unlock_irqrestore(&priv
->lock
, flags
);
6987 mutex_unlock(&priv
->mutex
);
6992 static void iwl4965_mac_update_tkip_key(struct ieee80211_hw
*hw
,
6993 struct ieee80211_key_conf
*keyconf
, const u8
*addr
,
6994 u32 iv32
, u16
*phase1key
)
6996 struct iwl_priv
*priv
= hw
->priv
;
6997 u8 sta_id
= IWL_INVALID_STATION
;
6998 unsigned long flags
;
6999 __le16 key_flags
= 0;
7001 DECLARE_MAC_BUF(mac
);
7003 IWL_DEBUG_MAC80211("enter\n");
7005 sta_id
= iwl4965_hw_find_station(priv
, addr
);
7006 if (sta_id
== IWL_INVALID_STATION
) {
7007 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
7008 print_mac(mac
, addr
));
7012 iwl4965_scan_cancel_timeout(priv
, 100);
7014 key_flags
|= (STA_KEY_FLG_TKIP
| STA_KEY_FLG_MAP_KEY_MSK
);
7015 key_flags
|= cpu_to_le16(keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
7016 key_flags
&= ~STA_KEY_FLG_INVALID
;
7018 if (sta_id
== priv
->hw_setting
.bcast_sta_id
)
7019 key_flags
|= STA_KEY_MULTICAST_MSK
;
7021 spin_lock_irqsave(&priv
->sta_lock
, flags
);
7023 priv
->stations
[sta_id
].sta
.key
.key_offset
=
7024 (sta_id
% STA_KEY_MAX_NUM
);/* FIXME */
7025 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
7026 priv
->stations
[sta_id
].sta
.key
.tkip_rx_tsc_byte2
= (u8
) iv32
;
7028 for (i
= 0; i
< 5; i
++)
7029 priv
->stations
[sta_id
].sta
.key
.tkip_rx_ttak
[i
] =
7030 cpu_to_le16(phase1key
[i
]);
7032 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
7033 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
7035 iwl4965_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
7037 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
7039 IWL_DEBUG_MAC80211("leave\n");
7042 static int iwl4965_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
7043 const u8
*local_addr
, const u8
*addr
,
7044 struct ieee80211_key_conf
*key
)
7046 struct iwl_priv
*priv
= hw
->priv
;
7047 DECLARE_MAC_BUF(mac
);
7049 u8 sta_id
= IWL_INVALID_STATION
;
7052 IWL_DEBUG_MAC80211("enter\n");
7054 if (!priv
->cfg
->mod_params
->hw_crypto
) {
7055 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
7059 if (is_zero_ether_addr(addr
))
7060 /* only support pairwise keys */
7063 /* FIXME: need to differenciate between static and dynamic key
7064 * in the level of mac80211 */
7065 static_key
= !iwl4965_is_associated(priv
);
7068 sta_id
= iwl4965_hw_find_station(priv
, addr
);
7069 if (sta_id
== IWL_INVALID_STATION
) {
7070 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
7071 print_mac(mac
, addr
));
7076 iwl4965_scan_cancel_timeout(priv
, 100);
7081 ret
= iwl4965_set_static_key(priv
, key
);
7083 ret
= iwl4965_set_dynamic_key(priv
, key
, sta_id
);
7085 IWL_DEBUG_MAC80211("enable hwcrypto key\n");
7089 ret
= iwl4965_remove_static_key(priv
);
7091 ret
= iwl4965_clear_sta_key_info(priv
, sta_id
);
7093 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
7099 IWL_DEBUG_MAC80211("leave\n");
7104 static int iwl4965_mac_conf_tx(struct ieee80211_hw
*hw
, int queue
,
7105 const struct ieee80211_tx_queue_params
*params
)
7107 struct iwl_priv
*priv
= hw
->priv
;
7108 unsigned long flags
;
7111 IWL_DEBUG_MAC80211("enter\n");
7113 if (!iwl4965_is_ready_rf(priv
)) {
7114 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7118 if (queue
>= AC_NUM
) {
7119 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
7123 if (!priv
->qos_data
.qos_enable
) {
7124 priv
->qos_data
.qos_active
= 0;
7125 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
7128 q
= AC_NUM
- 1 - queue
;
7130 spin_lock_irqsave(&priv
->lock
, flags
);
7132 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
7133 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
7134 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
7135 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
7136 cpu_to_le16((params
->txop
* 32));
7138 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
7139 priv
->qos_data
.qos_active
= 1;
7141 spin_unlock_irqrestore(&priv
->lock
, flags
);
7143 mutex_lock(&priv
->mutex
);
7144 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
7145 iwl4965_activate_qos(priv
, 1);
7146 else if (priv
->assoc_id
&& iwl4965_is_associated(priv
))
7147 iwl4965_activate_qos(priv
, 0);
7149 mutex_unlock(&priv
->mutex
);
7151 IWL_DEBUG_MAC80211("leave\n");
7155 static int iwl4965_mac_get_tx_stats(struct ieee80211_hw
*hw
,
7156 struct ieee80211_tx_queue_stats
*stats
)
7158 struct iwl_priv
*priv
= hw
->priv
;
7160 struct iwl4965_tx_queue
*txq
;
7161 struct iwl4965_queue
*q
;
7162 unsigned long flags
;
7164 IWL_DEBUG_MAC80211("enter\n");
7166 if (!iwl4965_is_ready_rf(priv
)) {
7167 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7171 spin_lock_irqsave(&priv
->lock
, flags
);
7173 for (i
= 0; i
< AC_NUM
; i
++) {
7174 txq
= &priv
->txq
[i
];
7176 avail
= iwl4965_queue_space(q
);
7178 stats
->data
[i
].len
= q
->n_window
- avail
;
7179 stats
->data
[i
].limit
= q
->n_window
- q
->high_mark
;
7180 stats
->data
[i
].count
= q
->n_window
;
7183 spin_unlock_irqrestore(&priv
->lock
, flags
);
7185 IWL_DEBUG_MAC80211("leave\n");
7190 static int iwl4965_mac_get_stats(struct ieee80211_hw
*hw
,
7191 struct ieee80211_low_level_stats
*stats
)
7193 IWL_DEBUG_MAC80211("enter\n");
7194 IWL_DEBUG_MAC80211("leave\n");
7199 static u64
iwl4965_mac_get_tsf(struct ieee80211_hw
*hw
)
7201 IWL_DEBUG_MAC80211("enter\n");
7202 IWL_DEBUG_MAC80211("leave\n");
7207 static void iwl4965_mac_reset_tsf(struct ieee80211_hw
*hw
)
7209 struct iwl_priv
*priv
= hw
->priv
;
7210 unsigned long flags
;
7212 mutex_lock(&priv
->mutex
);
7213 IWL_DEBUG_MAC80211("enter\n");
7215 priv
->lq_mngr
.lq_ready
= 0;
7216 #ifdef CONFIG_IWL4965_HT
7217 spin_lock_irqsave(&priv
->lock
, flags
);
7218 memset(&priv
->current_ht_config
, 0, sizeof(struct iwl_ht_info
));
7219 spin_unlock_irqrestore(&priv
->lock
, flags
);
7220 #endif /* CONFIG_IWL4965_HT */
7222 iwlcore_reset_qos(priv
);
7224 cancel_delayed_work(&priv
->post_associate
);
7226 spin_lock_irqsave(&priv
->lock
, flags
);
7228 priv
->assoc_capability
= 0;
7229 priv
->call_post_assoc_from_beacon
= 0;
7230 priv
->assoc_station_added
= 0;
7232 /* new association get rid of ibss beacon skb */
7233 if (priv
->ibss_beacon
)
7234 dev_kfree_skb(priv
->ibss_beacon
);
7236 priv
->ibss_beacon
= NULL
;
7238 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
7239 priv
->timestamp1
= 0;
7240 priv
->timestamp0
= 0;
7241 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
7242 priv
->beacon_int
= 0;
7244 spin_unlock_irqrestore(&priv
->lock
, flags
);
7246 if (!iwl4965_is_ready_rf(priv
)) {
7247 IWL_DEBUG_MAC80211("leave - not ready\n");
7248 mutex_unlock(&priv
->mutex
);
7252 /* we are restarting association process
7253 * clear RXON_FILTER_ASSOC_MSK bit
7255 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
7256 iwl4965_scan_cancel_timeout(priv
, 100);
7257 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7258 iwl4965_commit_rxon(priv
);
7261 /* Per mac80211.h: This is only used in IBSS mode... */
7262 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7264 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
7265 mutex_unlock(&priv
->mutex
);
7269 priv
->only_active_channel
= 0;
7271 iwl4965_set_rate(priv
);
7273 mutex_unlock(&priv
->mutex
);
7275 IWL_DEBUG_MAC80211("leave\n");
7278 static int iwl4965_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
7279 struct ieee80211_tx_control
*control
)
7281 struct iwl_priv
*priv
= hw
->priv
;
7282 unsigned long flags
;
7284 mutex_lock(&priv
->mutex
);
7285 IWL_DEBUG_MAC80211("enter\n");
7287 if (!iwl4965_is_ready_rf(priv
)) {
7288 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7289 mutex_unlock(&priv
->mutex
);
7293 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7294 IWL_DEBUG_MAC80211("leave - not IBSS\n");
7295 mutex_unlock(&priv
->mutex
);
7299 spin_lock_irqsave(&priv
->lock
, flags
);
7301 if (priv
->ibss_beacon
)
7302 dev_kfree_skb(priv
->ibss_beacon
);
7304 priv
->ibss_beacon
= skb
;
7308 IWL_DEBUG_MAC80211("leave\n");
7309 spin_unlock_irqrestore(&priv
->lock
, flags
);
7311 iwlcore_reset_qos(priv
);
7313 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
7315 mutex_unlock(&priv
->mutex
);
7320 #ifdef CONFIG_IWL4965_HT
7322 static void iwl4965_ht_info_fill(struct ieee80211_conf
*conf
,
7323 struct iwl_priv
*priv
)
7325 struct iwl_ht_info
*iwl_conf
= &priv
->current_ht_config
;
7326 struct ieee80211_ht_info
*ht_conf
= &conf
->ht_conf
;
7327 struct ieee80211_ht_bss_info
*ht_bss_conf
= &conf
->ht_bss_conf
;
7329 IWL_DEBUG_MAC80211("enter: \n");
7331 if (!(conf
->flags
& IEEE80211_CONF_SUPPORT_HT_MODE
)) {
7332 iwl_conf
->is_ht
= 0;
7336 iwl_conf
->is_ht
= 1;
7337 priv
->ps_mode
= (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
7339 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_20
)
7340 iwl_conf
->sgf
|= 0x1;
7341 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_40
)
7342 iwl_conf
->sgf
|= 0x2;
7344 iwl_conf
->is_green_field
= !!(ht_conf
->cap
& IEEE80211_HT_CAP_GRN_FLD
);
7345 iwl_conf
->max_amsdu_size
=
7346 !!(ht_conf
->cap
& IEEE80211_HT_CAP_MAX_AMSDU
);
7348 iwl_conf
->supported_chan_width
=
7349 !!(ht_conf
->cap
& IEEE80211_HT_CAP_SUP_WIDTH
);
7350 iwl_conf
->extension_chan_offset
=
7351 ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_SEC_OFFSET
;
7352 /* If no above or below channel supplied disable FAT channel */
7353 if (iwl_conf
->extension_chan_offset
!= IWL_EXT_CHANNEL_OFFSET_ABOVE
&&
7354 iwl_conf
->extension_chan_offset
!= IWL_EXT_CHANNEL_OFFSET_BELOW
)
7355 iwl_conf
->supported_chan_width
= 0;
7357 iwl_conf
->tx_mimo_ps_mode
=
7358 (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
7359 memcpy(iwl_conf
->supp_mcs_set
, ht_conf
->supp_mcs_set
, 16);
7361 iwl_conf
->control_channel
= ht_bss_conf
->primary_channel
;
7362 iwl_conf
->tx_chan_width
=
7363 !!(ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_WIDTH
);
7364 iwl_conf
->ht_protection
=
7365 ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_HT_PROTECTION
;
7366 iwl_conf
->non_GF_STA_present
=
7367 !!(ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_NON_GF_STA_PRSNT
);
7369 IWL_DEBUG_MAC80211("control channel %d\n",
7370 iwl_conf
->control_channel
);
7371 IWL_DEBUG_MAC80211("leave\n");
7374 static int iwl4965_mac_conf_ht(struct ieee80211_hw
*hw
,
7375 struct ieee80211_conf
*conf
)
7377 struct iwl_priv
*priv
= hw
->priv
;
7379 IWL_DEBUG_MAC80211("enter: \n");
7381 iwl4965_ht_info_fill(conf
, priv
);
7382 iwl4965_set_rxon_chain(priv
);
7384 if (priv
&& priv
->assoc_id
&&
7385 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)) {
7386 unsigned long flags
;
7388 spin_lock_irqsave(&priv
->lock
, flags
);
7389 if (priv
->beacon_int
)
7390 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
7392 priv
->call_post_assoc_from_beacon
= 1;
7393 spin_unlock_irqrestore(&priv
->lock
, flags
);
7396 IWL_DEBUG_MAC80211("leave:\n");
7400 #endif /*CONFIG_IWL4965_HT*/
7402 /*****************************************************************************
7406 *****************************************************************************/
7408 #ifdef CONFIG_IWLWIFI_DEBUG
7411 * The following adds a new attribute to the sysfs representation
7412 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
7413 * used for controlling the debug level.
7415 * See the level definitions in iwl for details.
7418 static ssize_t
show_debug_level(struct device_driver
*d
, char *buf
)
7420 return sprintf(buf
, "0x%08X\n", iwl_debug_level
);
7422 static ssize_t
store_debug_level(struct device_driver
*d
,
7423 const char *buf
, size_t count
)
7425 char *p
= (char *)buf
;
7428 val
= simple_strtoul(p
, &p
, 0);
7430 printk(KERN_INFO DRV_NAME
7431 ": %s is not in hex or decimal form.\n", buf
);
7433 iwl_debug_level
= val
;
7435 return strnlen(buf
, count
);
7438 static DRIVER_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
7439 show_debug_level
, store_debug_level
);
7441 #endif /* CONFIG_IWLWIFI_DEBUG */
7443 static ssize_t
show_rf_kill(struct device
*d
,
7444 struct device_attribute
*attr
, char *buf
)
7447 * 0 - RF kill not enabled
7448 * 1 - SW based RF kill active (sysfs)
7449 * 2 - HW based RF kill active
7450 * 3 - Both HW and SW based RF kill active
7452 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7453 int val
= (test_bit(STATUS_RF_KILL_SW
, &priv
->status
) ? 0x1 : 0x0) |
7454 (test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ? 0x2 : 0x0);
7456 return sprintf(buf
, "%i\n", val
);
7459 static ssize_t
store_rf_kill(struct device
*d
,
7460 struct device_attribute
*attr
,
7461 const char *buf
, size_t count
)
7463 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7465 mutex_lock(&priv
->mutex
);
7466 iwl4965_radio_kill_sw(priv
, buf
[0] == '1');
7467 mutex_unlock(&priv
->mutex
);
7472 static DEVICE_ATTR(rf_kill
, S_IWUSR
| S_IRUGO
, show_rf_kill
, store_rf_kill
);
7474 static ssize_t
show_temperature(struct device
*d
,
7475 struct device_attribute
*attr
, char *buf
)
7477 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7479 if (!iwl4965_is_alive(priv
))
7482 return sprintf(buf
, "%d\n", iwl4965_hw_get_temperature(priv
));
7485 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
7487 static ssize_t
show_rs_window(struct device
*d
,
7488 struct device_attribute
*attr
,
7491 struct iwl_priv
*priv
= d
->driver_data
;
7492 return iwl4965_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
7494 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
7496 static ssize_t
show_tx_power(struct device
*d
,
7497 struct device_attribute
*attr
, char *buf
)
7499 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7500 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
7503 static ssize_t
store_tx_power(struct device
*d
,
7504 struct device_attribute
*attr
,
7505 const char *buf
, size_t count
)
7507 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7508 char *p
= (char *)buf
;
7511 val
= simple_strtoul(p
, &p
, 10);
7513 printk(KERN_INFO DRV_NAME
7514 ": %s is not in decimal form.\n", buf
);
7516 iwl4965_hw_reg_set_txpower(priv
, val
);
7521 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
7523 static ssize_t
show_flags(struct device
*d
,
7524 struct device_attribute
*attr
, char *buf
)
7526 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7528 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
7531 static ssize_t
store_flags(struct device
*d
,
7532 struct device_attribute
*attr
,
7533 const char *buf
, size_t count
)
7535 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7536 u32 flags
= simple_strtoul(buf
, NULL
, 0);
7538 mutex_lock(&priv
->mutex
);
7539 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
7540 /* Cancel any currently running scans... */
7541 if (iwl4965_scan_cancel_timeout(priv
, 100))
7542 IWL_WARNING("Could not cancel scan.\n");
7544 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
7546 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
7547 iwl4965_commit_rxon(priv
);
7550 mutex_unlock(&priv
->mutex
);
7555 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
7557 static ssize_t
show_filter_flags(struct device
*d
,
7558 struct device_attribute
*attr
, char *buf
)
7560 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7562 return sprintf(buf
, "0x%04X\n",
7563 le32_to_cpu(priv
->active_rxon
.filter_flags
));
7566 static ssize_t
store_filter_flags(struct device
*d
,
7567 struct device_attribute
*attr
,
7568 const char *buf
, size_t count
)
7570 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7571 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
7573 mutex_lock(&priv
->mutex
);
7574 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
7575 /* Cancel any currently running scans... */
7576 if (iwl4965_scan_cancel_timeout(priv
, 100))
7577 IWL_WARNING("Could not cancel scan.\n");
7579 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
7580 "0x%04X\n", filter_flags
);
7581 priv
->staging_rxon
.filter_flags
=
7582 cpu_to_le32(filter_flags
);
7583 iwl4965_commit_rxon(priv
);
7586 mutex_unlock(&priv
->mutex
);
7591 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
7592 store_filter_flags
);
7594 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
7596 static ssize_t
show_measurement(struct device
*d
,
7597 struct device_attribute
*attr
, char *buf
)
7599 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7600 struct iwl4965_spectrum_notification measure_report
;
7601 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
7602 u8
*data
= (u8
*) & measure_report
;
7603 unsigned long flags
;
7605 spin_lock_irqsave(&priv
->lock
, flags
);
7606 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
7607 spin_unlock_irqrestore(&priv
->lock
, flags
);
7610 memcpy(&measure_report
, &priv
->measure_report
, size
);
7611 priv
->measurement_status
= 0;
7612 spin_unlock_irqrestore(&priv
->lock
, flags
);
7614 while (size
&& (PAGE_SIZE
- len
)) {
7615 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7616 PAGE_SIZE
- len
, 1);
7618 if (PAGE_SIZE
- len
)
7622 size
-= min(size
, 16U);
7628 static ssize_t
store_measurement(struct device
*d
,
7629 struct device_attribute
*attr
,
7630 const char *buf
, size_t count
)
7632 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7633 struct ieee80211_measurement_params params
= {
7634 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
7635 .start_time
= cpu_to_le64(priv
->last_tsf
),
7636 .duration
= cpu_to_le16(1),
7638 u8 type
= IWL_MEASURE_BASIC
;
7644 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
7645 channel
= simple_strtoul(p
, NULL
, 0);
7647 params
.channel
= channel
;
7650 while (*p
&& *p
!= ' ')
7653 type
= simple_strtoul(p
+ 1, NULL
, 0);
7656 IWL_DEBUG_INFO("Invoking measurement of type %d on "
7657 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
7658 iwl4965_get_measurement(priv
, ¶ms
, type
);
7663 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
7664 show_measurement
, store_measurement
);
7665 #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
7667 static ssize_t
store_retry_rate(struct device
*d
,
7668 struct device_attribute
*attr
,
7669 const char *buf
, size_t count
)
7671 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7673 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
7674 if (priv
->retry_rate
<= 0)
7675 priv
->retry_rate
= 1;
7680 static ssize_t
show_retry_rate(struct device
*d
,
7681 struct device_attribute
*attr
, char *buf
)
7683 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7684 return sprintf(buf
, "%d", priv
->retry_rate
);
7687 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
7690 static ssize_t
store_power_level(struct device
*d
,
7691 struct device_attribute
*attr
,
7692 const char *buf
, size_t count
)
7694 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7698 mode
= simple_strtoul(buf
, NULL
, 0);
7699 mutex_lock(&priv
->mutex
);
7701 if (!iwl4965_is_ready(priv
)) {
7706 if ((mode
< 1) || (mode
> IWL_POWER_LIMIT
) || (mode
== IWL_POWER_AC
))
7707 mode
= IWL_POWER_AC
;
7709 mode
|= IWL_POWER_ENABLED
;
7711 if (mode
!= priv
->power_mode
) {
7712 rc
= iwl4965_send_power_mode(priv
, IWL_POWER_LEVEL(mode
));
7714 IWL_DEBUG_MAC80211("failed setting power mode.\n");
7717 priv
->power_mode
= mode
;
7723 mutex_unlock(&priv
->mutex
);
7727 #define MAX_WX_STRING 80
7729 /* Values are in microsecond */
7730 static const s32 timeout_duration
[] = {
7737 static const s32 period_duration
[] = {
7745 static ssize_t
show_power_level(struct device
*d
,
7746 struct device_attribute
*attr
, char *buf
)
7748 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7749 int level
= IWL_POWER_LEVEL(priv
->power_mode
);
7752 p
+= sprintf(p
, "%d ", level
);
7754 case IWL_POWER_MODE_CAM
:
7756 p
+= sprintf(p
, "(AC)");
7758 case IWL_POWER_BATTERY
:
7759 p
+= sprintf(p
, "(BATTERY)");
7763 "(Timeout %dms, Period %dms)",
7764 timeout_duration
[level
- 1] / 1000,
7765 period_duration
[level
- 1] / 1000);
7768 if (!(priv
->power_mode
& IWL_POWER_ENABLED
))
7769 p
+= sprintf(p
, " OFF\n");
7771 p
+= sprintf(p
, " \n");
7773 return (p
- buf
+ 1);
7777 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
7780 static ssize_t
show_channels(struct device
*d
,
7781 struct device_attribute
*attr
, char *buf
)
7783 /* all this shit doesn't belong into sysfs anyway */
7787 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
7789 static ssize_t
show_statistics(struct device
*d
,
7790 struct device_attribute
*attr
, char *buf
)
7792 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7793 u32 size
= sizeof(struct iwl4965_notif_statistics
);
7794 u32 len
= 0, ofs
= 0;
7795 u8
*data
= (u8
*) & priv
->statistics
;
7798 if (!iwl4965_is_alive(priv
))
7801 mutex_lock(&priv
->mutex
);
7802 rc
= iwl4965_send_statistics_request(priv
);
7803 mutex_unlock(&priv
->mutex
);
7807 "Error sending statistics request: 0x%08X\n", rc
);
7811 while (size
&& (PAGE_SIZE
- len
)) {
7812 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7813 PAGE_SIZE
- len
, 1);
7815 if (PAGE_SIZE
- len
)
7819 size
-= min(size
, 16U);
7825 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
7827 static ssize_t
show_antenna(struct device
*d
,
7828 struct device_attribute
*attr
, char *buf
)
7830 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7832 if (!iwl4965_is_alive(priv
))
7835 return sprintf(buf
, "%d\n", priv
->antenna
);
7838 static ssize_t
store_antenna(struct device
*d
,
7839 struct device_attribute
*attr
,
7840 const char *buf
, size_t count
)
7843 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7848 if (sscanf(buf
, "%1i", &ant
) != 1) {
7849 IWL_DEBUG_INFO("not in hex or decimal form.\n");
7853 if ((ant
>= 0) && (ant
<= 2)) {
7854 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant
);
7855 priv
->antenna
= (enum iwl4965_antenna
)ant
;
7857 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant
);
7863 static DEVICE_ATTR(antenna
, S_IWUSR
| S_IRUGO
, show_antenna
, store_antenna
);
7865 static ssize_t
show_status(struct device
*d
,
7866 struct device_attribute
*attr
, char *buf
)
7868 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7869 if (!iwl4965_is_alive(priv
))
7871 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
7874 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
7876 static ssize_t
dump_error_log(struct device
*d
,
7877 struct device_attribute
*attr
,
7878 const char *buf
, size_t count
)
7880 char *p
= (char *)buf
;
7883 iwl4965_dump_nic_error_log((struct iwl_priv
*)d
->driver_data
);
7885 return strnlen(buf
, count
);
7888 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
7890 static ssize_t
dump_event_log(struct device
*d
,
7891 struct device_attribute
*attr
,
7892 const char *buf
, size_t count
)
7894 char *p
= (char *)buf
;
7897 iwl4965_dump_nic_event_log((struct iwl_priv
*)d
->driver_data
);
7899 return strnlen(buf
, count
);
7902 static DEVICE_ATTR(dump_events
, S_IWUSR
, NULL
, dump_event_log
);
7904 /*****************************************************************************
7906 * driver setup and teardown
7908 *****************************************************************************/
7910 static void iwl4965_setup_deferred_work(struct iwl_priv
*priv
)
7912 priv
->workqueue
= create_workqueue(DRV_NAME
);
7914 init_waitqueue_head(&priv
->wait_command_queue
);
7916 INIT_WORK(&priv
->up
, iwl4965_bg_up
);
7917 INIT_WORK(&priv
->restart
, iwl4965_bg_restart
);
7918 INIT_WORK(&priv
->rx_replenish
, iwl4965_bg_rx_replenish
);
7919 INIT_WORK(&priv
->scan_completed
, iwl4965_bg_scan_completed
);
7920 INIT_WORK(&priv
->request_scan
, iwl4965_bg_request_scan
);
7921 INIT_WORK(&priv
->abort_scan
, iwl4965_bg_abort_scan
);
7922 INIT_WORK(&priv
->rf_kill
, iwl4965_bg_rf_kill
);
7923 INIT_WORK(&priv
->beacon_update
, iwl4965_bg_beacon_update
);
7924 INIT_DELAYED_WORK(&priv
->post_associate
, iwl4965_bg_post_associate
);
7925 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl4965_bg_init_alive_start
);
7926 INIT_DELAYED_WORK(&priv
->alive_start
, iwl4965_bg_alive_start
);
7927 INIT_DELAYED_WORK(&priv
->scan_check
, iwl4965_bg_scan_check
);
7929 iwl4965_hw_setup_deferred_work(priv
);
7931 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
7932 iwl4965_irq_tasklet
, (unsigned long)priv
);
7935 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
)
7937 iwl4965_hw_cancel_deferred_work(priv
);
7939 cancel_delayed_work_sync(&priv
->init_alive_start
);
7940 cancel_delayed_work(&priv
->scan_check
);
7941 cancel_delayed_work(&priv
->alive_start
);
7942 cancel_delayed_work(&priv
->post_associate
);
7943 cancel_work_sync(&priv
->beacon_update
);
7946 static struct attribute
*iwl4965_sysfs_entries
[] = {
7947 &dev_attr_antenna
.attr
,
7948 &dev_attr_channels
.attr
,
7949 &dev_attr_dump_errors
.attr
,
7950 &dev_attr_dump_events
.attr
,
7951 &dev_attr_flags
.attr
,
7952 &dev_attr_filter_flags
.attr
,
7953 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
7954 &dev_attr_measurement
.attr
,
7956 &dev_attr_power_level
.attr
,
7957 &dev_attr_retry_rate
.attr
,
7958 &dev_attr_rf_kill
.attr
,
7959 &dev_attr_rs_window
.attr
,
7960 &dev_attr_statistics
.attr
,
7961 &dev_attr_status
.attr
,
7962 &dev_attr_temperature
.attr
,
7963 &dev_attr_tx_power
.attr
,
7968 static struct attribute_group iwl4965_attribute_group
= {
7969 .name
= NULL
, /* put in device directory */
7970 .attrs
= iwl4965_sysfs_entries
,
7973 static struct ieee80211_ops iwl4965_hw_ops
= {
7974 .tx
= iwl4965_mac_tx
,
7975 .start
= iwl4965_mac_start
,
7976 .stop
= iwl4965_mac_stop
,
7977 .add_interface
= iwl4965_mac_add_interface
,
7978 .remove_interface
= iwl4965_mac_remove_interface
,
7979 .config
= iwl4965_mac_config
,
7980 .config_interface
= iwl4965_mac_config_interface
,
7981 .configure_filter
= iwl4965_configure_filter
,
7982 .set_key
= iwl4965_mac_set_key
,
7983 .update_tkip_key
= iwl4965_mac_update_tkip_key
,
7984 .get_stats
= iwl4965_mac_get_stats
,
7985 .get_tx_stats
= iwl4965_mac_get_tx_stats
,
7986 .conf_tx
= iwl4965_mac_conf_tx
,
7987 .get_tsf
= iwl4965_mac_get_tsf
,
7988 .reset_tsf
= iwl4965_mac_reset_tsf
,
7989 .beacon_update
= iwl4965_mac_beacon_update
,
7990 .bss_info_changed
= iwl4965_bss_info_changed
,
7991 #ifdef CONFIG_IWL4965_HT
7992 .conf_ht
= iwl4965_mac_conf_ht
,
7993 .ampdu_action
= iwl4965_mac_ampdu_action
,
7994 #endif /* CONFIG_IWL4965_HT */
7995 .hw_scan
= iwl4965_mac_hw_scan
7998 static int iwl4965_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
8001 struct iwl_priv
*priv
;
8002 struct ieee80211_hw
*hw
;
8003 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
8004 DECLARE_MAC_BUF(mac
);
8006 /************************
8007 * 1. Allocating HW data
8008 ************************/
8010 /* Disabling hardware scan means that mac80211 will perform scans
8011 * "the hard way", rather than using device's scan. */
8012 if (cfg
->mod_params
->disable_hw_scan
) {
8013 IWL_DEBUG_INFO("Disabling hw_scan\n");
8014 iwl4965_hw_ops
.hw_scan
= NULL
;
8017 hw
= iwl_alloc_all(cfg
, &iwl4965_hw_ops
);
8023 /* At this point both hw and priv are allocated. */
8025 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
8027 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
8029 priv
->pci_dev
= pdev
;
8031 #ifdef CONFIG_IWLWIFI_DEBUG
8032 iwl_debug_level
= priv
->cfg
->mod_params
->debug
;
8033 atomic_set(&priv
->restrict_refcnt
, 0);
8036 /**************************
8037 * 2. Initializing PCI bus
8038 **************************/
8039 if (pci_enable_device(pdev
)) {
8041 goto out_ieee80211_free_hw
;
8044 pci_set_master(pdev
);
8046 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
8048 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
8050 printk(KERN_WARNING DRV_NAME
8051 ": No suitable DMA available.\n");
8052 goto out_pci_disable_device
;
8055 err
= pci_request_regions(pdev
, DRV_NAME
);
8057 goto out_pci_disable_device
;
8059 pci_set_drvdata(pdev
, priv
);
8061 /* We disable the RETRY_TIMEOUT register (0x41) to keep
8062 * PCI Tx retries from interfering with C3 CPU state */
8063 pci_write_config_byte(pdev
, 0x41, 0x00);
8065 /***********************
8066 * 3. Read REV register
8067 ***********************/
8068 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
8069 if (!priv
->hw_base
) {
8071 goto out_pci_release_regions
;
8074 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
8075 (unsigned long long) pci_resource_len(pdev
, 0));
8076 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
8078 printk(KERN_INFO DRV_NAME
8079 ": Detected Intel Wireless WiFi Link %s\n", priv
->cfg
->name
);
8085 iwl4965_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
8086 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER
);
8088 iwl4965_set_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
8089 err
= iwl4965_poll_bit(priv
, CSR_GP_CNTRL
,
8090 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
,
8091 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
, 25000);
8093 IWL_DEBUG_INFO("Failed to init the card\n");
8096 /* Read the EEPROM */
8097 err
= iwl_eeprom_init(priv
);
8099 IWL_ERROR("Unable to init EEPROM\n");
8102 /* MAC Address location in EEPROM same for 3945/4965 */
8103 iwl_eeprom_get_mac(priv
, priv
->mac_addr
);
8104 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac
, priv
->mac_addr
));
8105 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
8107 /************************
8108 * 5. Setup HW constants
8109 ************************/
8110 /* Device-specific setup */
8111 if (iwl4965_hw_set_hw_setting(priv
)) {
8112 IWL_ERROR("failed to set hw settings\n");
8116 /*******************
8118 *******************/
8120 err
= iwl_setup(priv
);
8122 goto out_unset_hw_settings
;
8123 /* At this point both hw and priv are initialized. */
8125 /**********************************
8126 * 7. Initialize module parameters
8127 **********************************/
8129 /* Disable radio (SW RF KILL) via parameter when loading driver */
8130 if (priv
->cfg
->mod_params
->disable
) {
8131 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
8132 IWL_DEBUG_INFO("Radio disabled.\n");
8135 if (priv
->cfg
->mod_params
->enable_qos
)
8136 priv
->qos_data
.qos_enable
= 1;
8138 /********************
8140 ********************/
8141 iwl4965_disable_interrupts(priv
);
8143 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
8145 IWL_ERROR("failed to create sysfs device attributes\n");
8146 goto out_unset_hw_settings
;
8149 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
8151 IWL_ERROR("failed to create debugfs files\n");
8152 goto out_remove_sysfs
;
8155 iwl4965_setup_deferred_work(priv
);
8156 iwl4965_setup_rx_handlers(priv
);
8158 /********************
8160 ********************/
8161 pci_save_state(pdev
);
8162 pci_disable_device(pdev
);
8167 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
8168 out_unset_hw_settings
:
8169 iwl4965_unset_hw_setting(priv
);
8171 pci_iounmap(pdev
, priv
->hw_base
);
8172 out_pci_release_regions
:
8173 pci_release_regions(pdev
);
8174 pci_set_drvdata(pdev
, NULL
);
8175 out_pci_disable_device
:
8176 pci_disable_device(pdev
);
8177 out_ieee80211_free_hw
:
8178 ieee80211_free_hw(priv
->hw
);
8183 static void iwl4965_pci_remove(struct pci_dev
*pdev
)
8185 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
8186 struct list_head
*p
, *q
;
8192 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
8194 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
8198 /* Free MAC hash list for ADHOC */
8199 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++) {
8200 list_for_each_safe(p
, q
, &priv
->ibss_mac_hash
[i
]) {
8202 kfree(list_entry(p
, struct iwl4965_ibss_seq
, list
));
8206 iwl_dbgfs_unregister(priv
);
8207 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
8209 iwl4965_dealloc_ucode_pci(priv
);
8212 iwl4965_rx_queue_free(priv
, &priv
->rxq
);
8213 iwl4965_hw_txq_ctx_free(priv
);
8215 iwl4965_unset_hw_setting(priv
);
8216 iwlcore_clear_stations_table(priv
);
8218 if (priv
->mac80211_registered
) {
8219 ieee80211_unregister_hw(priv
->hw
);
8220 iwl4965_rate_control_unregister(priv
->hw
);
8223 /*netif_stop_queue(dev); */
8224 flush_workqueue(priv
->workqueue
);
8226 /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
8227 * priv->workqueue... so we can't take down the workqueue
8229 destroy_workqueue(priv
->workqueue
);
8230 priv
->workqueue
= NULL
;
8232 pci_iounmap(pdev
, priv
->hw_base
);
8233 pci_release_regions(pdev
);
8234 pci_disable_device(pdev
);
8235 pci_set_drvdata(pdev
, NULL
);
8237 iwl_free_channel_map(priv
);
8238 iwl4965_free_geos(priv
);
8240 if (priv
->ibss_beacon
)
8241 dev_kfree_skb(priv
->ibss_beacon
);
8243 ieee80211_free_hw(priv
->hw
);
8248 static int iwl4965_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
8250 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
8252 if (priv
->is_open
) {
8253 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8254 iwl4965_mac_stop(priv
->hw
);
8258 pci_set_power_state(pdev
, PCI_D3hot
);
8263 static int iwl4965_pci_resume(struct pci_dev
*pdev
)
8265 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
8267 pci_set_power_state(pdev
, PCI_D0
);
8270 iwl4965_mac_start(priv
->hw
);
8272 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8276 #endif /* CONFIG_PM */
8278 /*****************************************************************************
8280 * driver and module entry point
8282 *****************************************************************************/
8284 static struct pci_driver iwl4965_driver
= {
8286 .id_table
= iwl4965_hw_card_ids
,
8287 .probe
= iwl4965_pci_probe
,
8288 .remove
= __devexit_p(iwl4965_pci_remove
),
8290 .suspend
= iwl4965_pci_suspend
,
8291 .resume
= iwl4965_pci_resume
,
8295 static int __init
iwl4965_init(void)
8299 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
8300 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
8301 ret
= pci_register_driver(&iwl4965_driver
);
8303 IWL_ERROR("Unable to initialize PCI module\n");
8306 #ifdef CONFIG_IWLWIFI_DEBUG
8307 ret
= driver_create_file(&iwl4965_driver
.driver
, &driver_attr_debug_level
);
8309 IWL_ERROR("Unable to create driver sysfs file\n");
8310 pci_unregister_driver(&iwl4965_driver
);
8318 static void __exit
iwl4965_exit(void)
8320 #ifdef CONFIG_IWLWIFI_DEBUG
8321 driver_remove_file(&iwl4965_driver
.driver
, &driver_attr_debug_level
);
8323 pci_unregister_driver(&iwl4965_driver
);
8326 module_exit(iwl4965_exit
);
8327 module_init(iwl4965_init
);