1 /******************************************************************************
3 * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * James P. Ketrenos <ipw2100-admin@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/version.h>
33 #include <linux/init.h>
34 #include <linux/pci.h>
35 #include <linux/dma-mapping.h>
36 #include <linux/delay.h>
37 #include <linux/skbuff.h>
38 #include <linux/netdevice.h>
39 #include <linux/wireless.h>
40 #include <linux/firmware.h>
41 #include <linux/etherdevice.h>
42 #include <linux/if_arp.h>
44 #include <net/mac80211.h>
46 #include <asm/div64.h>
48 #include "iwl-eeprom.h"
52 #include "iwl-helpers.h"
54 static int iwl4965_tx_queue_update_write_ptr(struct iwl_priv
*priv
,
55 struct iwl4965_tx_queue
*txq
);
57 /******************************************************************************
61 ******************************************************************************/
64 * module name, copyright, version, etc.
65 * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
68 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link 4965AGN driver for Linux"
70 #ifdef CONFIG_IWLWIFI_DEBUG
76 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
82 #define DRV_VERSION IWLWIFI_VERSION VD VS
85 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
86 MODULE_VERSION(DRV_VERSION
);
87 MODULE_AUTHOR(DRV_COPYRIGHT
);
88 MODULE_LICENSE("GPL");
90 __le16
*ieee80211_get_qos_ctrl(struct ieee80211_hdr
*hdr
)
92 u16 fc
= le16_to_cpu(hdr
->frame_control
);
93 int hdr_len
= ieee80211_get_hdrlen(fc
);
95 if ((fc
& 0x00cc) == (IEEE80211_STYPE_QOS_DATA
| IEEE80211_FTYPE_DATA
))
96 return (__le16
*) ((u8
*) hdr
+ hdr_len
- QOS_CONTROL_LEN
);
100 static const struct ieee80211_supported_band
*iwl4965_get_hw_mode(
101 struct iwl_priv
*priv
, enum ieee80211_band band
)
103 return priv
->hw
->wiphy
->bands
[band
];
106 static int iwl4965_is_empty_essid(const char *essid
, int essid_len
)
108 /* Single white space is for Linksys APs */
109 if (essid_len
== 1 && essid
[0] == ' ')
112 /* Otherwise, if the entire essid is 0, we assume it is hidden */
115 if (essid
[essid_len
] != '\0')
122 static const char *iwl4965_escape_essid(const char *essid
, u8 essid_len
)
124 static char escaped
[IW_ESSID_MAX_SIZE
* 2 + 1];
125 const char *s
= essid
;
128 if (iwl4965_is_empty_essid(essid
, essid_len
)) {
129 memcpy(escaped
, "<hidden>", sizeof("<hidden>"));
133 essid_len
= min(essid_len
, (u8
) IW_ESSID_MAX_SIZE
);
134 while (essid_len
--) {
146 /*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
149 * Theory of operation
151 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
152 * of buffer descriptors, each of which points to one or more data buffers for
153 * the device to read from or fill. Driver and device exchange status of each
154 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
155 * entries in each circular buffer, to protect against confusing empty and full
158 * The device reads or writes the data in the queues via the device's several
159 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
161 * For Tx queue, there are low mark and high mark limits. If, after queuing
162 * the packet for Tx, free space become < low mark, Tx queue stopped. When
163 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
166 * The 4965 operates with up to 17 queues: One receive queue, one transmit
167 * queue (#4) for sending commands to the device firmware, and 15 other
168 * Tx queues that may be mapped to prioritized Tx DMA/FIFO channels.
170 * See more detailed info in iwl-4965-hw.h.
171 ***************************************************/
173 int iwl4965_queue_space(const struct iwl4965_queue
*q
)
175 int s
= q
->read_ptr
- q
->write_ptr
;
177 if (q
->read_ptr
> q
->write_ptr
)
182 /* keep some reserve to not confuse empty and full situations */
190 static inline int x2_queue_used(const struct iwl4965_queue
*q
, int i
)
192 return q
->write_ptr
> q
->read_ptr
?
193 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
194 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
197 static inline u8
get_cmd_index(struct iwl4965_queue
*q
, u32 index
, int is_huge
)
199 /* This is for scan command, the big buffer at end of command array */
201 return q
->n_window
; /* must be power of 2 */
203 /* Otherwise, use normal size buffers */
204 return index
& (q
->n_window
- 1);
208 * iwl4965_queue_init - Initialize queue's high/low-water and read/write indexes
210 static int iwl4965_queue_init(struct iwl_priv
*priv
, struct iwl4965_queue
*q
,
211 int count
, int slots_num
, u32 id
)
214 q
->n_window
= slots_num
;
217 /* count must be power-of-two size, otherwise iwl_queue_inc_wrap
218 * and iwl_queue_dec_wrap are broken. */
219 BUG_ON(!is_power_of_2(count
));
221 /* slots_num must be power-of-two size, otherwise
222 * get_cmd_index is broken. */
223 BUG_ON(!is_power_of_2(slots_num
));
225 q
->low_mark
= q
->n_window
/ 4;
229 q
->high_mark
= q
->n_window
/ 8;
230 if (q
->high_mark
< 2)
233 q
->write_ptr
= q
->read_ptr
= 0;
239 * iwl4965_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
241 static int iwl4965_tx_queue_alloc(struct iwl_priv
*priv
,
242 struct iwl4965_tx_queue
*txq
, u32 id
)
244 struct pci_dev
*dev
= priv
->pci_dev
;
246 /* Driver private data, only for Tx (not command) queues,
247 * not shared with device. */
248 if (id
!= IWL_CMD_QUEUE_NUM
) {
249 txq
->txb
= kmalloc(sizeof(txq
->txb
[0]) *
250 TFD_QUEUE_SIZE_MAX
, GFP_KERNEL
);
252 IWL_ERROR("kmalloc for auxiliary BD "
253 "structures failed\n");
259 /* Circular buffer of transmit frame descriptors (TFDs),
260 * shared with device */
261 txq
->bd
= pci_alloc_consistent(dev
,
262 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
,
266 IWL_ERROR("pci_alloc_consistent(%zd) failed\n",
267 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
);
284 * iwl4965_tx_queue_init - Allocate and initialize one tx/cmd queue
286 int iwl4965_tx_queue_init(struct iwl_priv
*priv
,
287 struct iwl4965_tx_queue
*txq
, int slots_num
, u32 txq_id
)
289 struct pci_dev
*dev
= priv
->pci_dev
;
294 * Alloc buffer array for commands (Tx or other types of commands).
295 * For the command queue (#4), allocate command space + one big
296 * command for scan, since scan command is very huge; the system will
297 * not have two scans at the same time, so only one is needed.
298 * For normal Tx queues (all other queues), no super-size command
301 len
= sizeof(struct iwl_cmd
) * slots_num
;
302 if (txq_id
== IWL_CMD_QUEUE_NUM
)
303 len
+= IWL_MAX_SCAN_SIZE
;
304 txq
->cmd
= pci_alloc_consistent(dev
, len
, &txq
->dma_addr_cmd
);
308 /* Alloc driver data array and TFD circular buffer */
309 rc
= iwl4965_tx_queue_alloc(priv
, txq
, txq_id
);
311 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
315 txq
->need_update
= 0;
317 /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
318 * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
319 BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX
& (TFD_QUEUE_SIZE_MAX
- 1));
321 /* Initialize queue's high/low-water marks, and head/tail indexes */
322 iwl4965_queue_init(priv
, &txq
->q
, TFD_QUEUE_SIZE_MAX
, slots_num
, txq_id
);
324 /* Tell device where to find queue */
325 iwl4965_hw_tx_queue_init(priv
, txq
);
331 * iwl4965_tx_queue_free - Deallocate DMA queue.
332 * @txq: Transmit queue to deallocate.
334 * Empty queue by removing and destroying all BD's.
336 * 0-fill, but do not free "txq" descriptor structure.
338 void iwl4965_tx_queue_free(struct iwl_priv
*priv
, struct iwl4965_tx_queue
*txq
)
340 struct iwl4965_queue
*q
= &txq
->q
;
341 struct pci_dev
*dev
= priv
->pci_dev
;
347 /* first, empty all BD's */
348 for (; q
->write_ptr
!= q
->read_ptr
;
349 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
))
350 iwl4965_hw_txq_free_tfd(priv
, txq
);
352 len
= sizeof(struct iwl_cmd
) * q
->n_window
;
353 if (q
->id
== IWL_CMD_QUEUE_NUM
)
354 len
+= IWL_MAX_SCAN_SIZE
;
356 /* De-alloc array of command/tx buffers */
357 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
359 /* De-alloc circular buffer of TFDs */
361 pci_free_consistent(dev
, sizeof(struct iwl4965_tfd_frame
) *
362 txq
->q
.n_bd
, txq
->bd
, txq
->q
.dma_addr
);
364 /* De-alloc array of per-TFD driver data */
370 /* 0-fill queue descriptor structure */
371 memset(txq
, 0, sizeof(*txq
));
374 const u8 iwl4965_broadcast_addr
[ETH_ALEN
] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
376 /*************** STATION TABLE MANAGEMENT ****
377 * mac80211 should be examined to determine if sta_info is duplicating
378 * the functionality provided here
381 /**************************************************************/
383 #if 0 /* temporary disable till we add real remove station */
385 * iwl4965_remove_station - Remove driver's knowledge of station.
387 * NOTE: This does not remove station from device's station table.
389 static u8
iwl4965_remove_station(struct iwl_priv
*priv
, const u8
*addr
, int is_ap
)
391 int index
= IWL_INVALID_STATION
;
395 spin_lock_irqsave(&priv
->sta_lock
, flags
);
399 else if (is_broadcast_ether_addr(addr
))
400 index
= priv
->hw_setting
.bcast_sta_id
;
402 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++)
403 if (priv
->stations
[i
].used
&&
404 !compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
410 if (unlikely(index
== IWL_INVALID_STATION
))
413 if (priv
->stations
[index
].used
) {
414 priv
->stations
[index
].used
= 0;
415 priv
->num_stations
--;
418 BUG_ON(priv
->num_stations
< 0);
421 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
427 * iwl4965_add_station_flags - Add station to tables in driver and device
429 u8
iwl4965_add_station_flags(struct iwl_priv
*priv
, const u8
*addr
,
430 int is_ap
, u8 flags
, void *ht_data
)
433 int index
= IWL_INVALID_STATION
;
434 struct iwl4965_station_entry
*station
;
435 unsigned long flags_spin
;
436 DECLARE_MAC_BUF(mac
);
438 spin_lock_irqsave(&priv
->sta_lock
, flags_spin
);
441 else if (is_broadcast_ether_addr(addr
))
442 index
= priv
->hw_setting
.bcast_sta_id
;
444 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++) {
445 if (!compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
451 if (!priv
->stations
[i
].used
&&
452 index
== IWL_INVALID_STATION
)
457 /* These two conditions have the same outcome, but keep them separate
458 since they have different meanings */
459 if (unlikely(index
== IWL_INVALID_STATION
)) {
460 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
464 if (priv
->stations
[index
].used
&&
465 !compare_ether_addr(priv
->stations
[index
].sta
.sta
.addr
, addr
)) {
466 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
471 IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index
, print_mac(mac
, addr
));
472 station
= &priv
->stations
[index
];
474 priv
->num_stations
++;
476 /* Set up the REPLY_ADD_STA command to send to device */
477 memset(&station
->sta
, 0, sizeof(struct iwl4965_addsta_cmd
));
478 memcpy(station
->sta
.sta
.addr
, addr
, ETH_ALEN
);
479 station
->sta
.mode
= 0;
480 station
->sta
.sta
.sta_id
= index
;
481 station
->sta
.station_flags
= 0;
483 #ifdef CONFIG_IWL4965_HT
484 /* BCAST station and IBSS stations do not work in HT mode */
485 if (index
!= priv
->hw_setting
.bcast_sta_id
&&
486 priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
)
487 iwl4965_set_ht_add_station(priv
, index
,
488 (struct ieee80211_ht_info
*) ht_data
);
489 #endif /*CONFIG_IWL4965_HT*/
491 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
493 /* Add station to device's station table */
494 iwl4965_send_add_station(priv
, &station
->sta
, flags
);
499 /*************** DRIVER STATUS FUNCTIONS *****/
501 static inline int iwl4965_is_ready(struct iwl_priv
*priv
)
503 /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
504 * set but EXIT_PENDING is not */
505 return test_bit(STATUS_READY
, &priv
->status
) &&
506 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) &&
507 !test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
510 static inline int iwl4965_is_alive(struct iwl_priv
*priv
)
512 return test_bit(STATUS_ALIVE
, &priv
->status
);
515 static inline int iwl4965_is_init(struct iwl_priv
*priv
)
517 return test_bit(STATUS_INIT
, &priv
->status
);
520 static inline int iwl4965_is_rfkill(struct iwl_priv
*priv
)
522 return test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ||
523 test_bit(STATUS_RF_KILL_SW
, &priv
->status
);
526 static inline int iwl4965_is_ready_rf(struct iwl_priv
*priv
)
529 if (iwl4965_is_rfkill(priv
))
532 return iwl4965_is_ready(priv
);
535 /*************** HOST COMMAND QUEUE FUNCTIONS *****/
538 * iwl4965_enqueue_hcmd - enqueue a uCode command
539 * @priv: device private data point
540 * @cmd: a point to the ucode command structure
542 * The function returns < 0 values to indicate the operation is
543 * failed. On success, it turns the index (> 0) of command in the
546 int iwl4965_enqueue_hcmd(struct iwl_priv
*priv
, struct iwl_host_cmd
*cmd
)
548 struct iwl4965_tx_queue
*txq
= &priv
->txq
[IWL_CMD_QUEUE_NUM
];
549 struct iwl4965_queue
*q
= &txq
->q
;
550 struct iwl4965_tfd_frame
*tfd
;
552 struct iwl_cmd
*out_cmd
;
554 u16 fix_size
= (u16
)(cmd
->len
+ sizeof(out_cmd
->hdr
));
555 dma_addr_t phys_addr
;
559 /* If any of the command structures end up being larger than
560 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
561 * we will need to increase the size of the TFD entries */
562 BUG_ON((fix_size
> TFD_MAX_PAYLOAD_SIZE
) &&
563 !(cmd
->meta
.flags
& CMD_SIZE_HUGE
));
565 if (iwl4965_is_rfkill(priv
)) {
566 IWL_DEBUG_INFO("Not sending command - RF KILL");
570 if (iwl4965_queue_space(q
) < ((cmd
->meta
.flags
& CMD_ASYNC
) ? 2 : 1)) {
571 IWL_ERROR("No space for Tx\n");
575 spin_lock_irqsave(&priv
->hcmd_lock
, flags
);
577 tfd
= &txq
->bd
[q
->write_ptr
];
578 memset(tfd
, 0, sizeof(*tfd
));
580 control_flags
= (u32
*) tfd
;
582 idx
= get_cmd_index(q
, q
->write_ptr
, cmd
->meta
.flags
& CMD_SIZE_HUGE
);
583 out_cmd
= &txq
->cmd
[idx
];
585 out_cmd
->hdr
.cmd
= cmd
->id
;
586 memcpy(&out_cmd
->meta
, &cmd
->meta
, sizeof(cmd
->meta
));
587 memcpy(&out_cmd
->cmd
.payload
, cmd
->data
, cmd
->len
);
589 /* At this point, the out_cmd now has all of the incoming cmd
592 out_cmd
->hdr
.flags
= 0;
593 out_cmd
->hdr
.sequence
= cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM
) |
594 INDEX_TO_SEQ(q
->write_ptr
));
595 if (out_cmd
->meta
.flags
& CMD_SIZE_HUGE
)
596 out_cmd
->hdr
.sequence
|= cpu_to_le16(SEQ_HUGE_FRAME
);
598 phys_addr
= txq
->dma_addr_cmd
+ sizeof(txq
->cmd
[0]) * idx
+
599 offsetof(struct iwl_cmd
, hdr
);
600 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, fix_size
);
602 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
603 "%d bytes at %d[%d]:%d\n",
604 get_cmd_string(out_cmd
->hdr
.cmd
),
605 out_cmd
->hdr
.cmd
, le16_to_cpu(out_cmd
->hdr
.sequence
),
606 fix_size
, q
->write_ptr
, idx
, IWL_CMD_QUEUE_NUM
);
608 txq
->need_update
= 1;
610 /* Set up entry in queue's byte count circular buffer */
611 ret
= iwl4965_tx_queue_update_wr_ptr(priv
, txq
, 0);
613 /* Increment and update queue's write index */
614 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
615 iwl4965_tx_queue_update_write_ptr(priv
, txq
);
617 spin_unlock_irqrestore(&priv
->hcmd_lock
, flags
);
618 return ret
? ret
: idx
;
621 static void iwl4965_set_rxon_hwcrypto(struct iwl_priv
*priv
, int hw_decrypt
)
623 struct iwl4965_rxon_cmd
*rxon
= &priv
->staging_rxon
;
626 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
628 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
632 int iwl4965_send_statistics_request(struct iwl_priv
*priv
)
635 return iwl_send_cmd_pdu(priv
, REPLY_STATISTICS_CMD
,
636 sizeof(flags
), &flags
);
640 * iwl4965_rxon_add_station - add station into station table.
642 * there is only one AP station with id= IWL_AP_ID
643 * NOTE: mutex must be held before calling this fnction
645 static int iwl4965_rxon_add_station(struct iwl_priv
*priv
,
646 const u8
*addr
, int is_ap
)
650 /* Add station to device's station table */
651 #ifdef CONFIG_IWL4965_HT
652 struct ieee80211_conf
*conf
= &priv
->hw
->conf
;
653 struct ieee80211_ht_info
*cur_ht_config
= &conf
->ht_conf
;
656 (conf
->flags
& IEEE80211_CONF_SUPPORT_HT_MODE
) &&
657 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
658 sta_id
= iwl4965_add_station_flags(priv
, addr
, is_ap
,
661 #endif /* CONFIG_IWL4965_HT */
662 sta_id
= iwl4965_add_station_flags(priv
, addr
, is_ap
,
665 /* Set up default rate scaling table in device's station table */
666 iwl4965_add_station(priv
, addr
, is_ap
);
672 * iwl4965_check_rxon_cmd - validate RXON structure is valid
674 * NOTE: This is really only useful during development and can eventually
675 * be #ifdef'd out once the driver is stable and folks aren't actively
678 static int iwl4965_check_rxon_cmd(struct iwl4965_rxon_cmd
*rxon
)
683 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
684 error
|= le32_to_cpu(rxon
->flags
&
685 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
686 RXON_FLG_RADAR_DETECT_MSK
));
688 IWL_WARNING("check 24G fields %d | %d\n",
691 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
692 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
694 IWL_WARNING("check 52 fields %d | %d\n",
696 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
698 IWL_WARNING("check 52 CCK %d | %d\n",
701 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
703 IWL_WARNING("check mac addr %d | %d\n", counter
++, error
);
705 /* make sure basic rates 6Mbps and 1Mbps are supported */
706 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
707 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
709 IWL_WARNING("check basic rate %d | %d\n", counter
++, error
);
711 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
713 IWL_WARNING("check assoc id %d | %d\n", counter
++, error
);
715 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
716 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
718 IWL_WARNING("check CCK and short slot %d | %d\n",
721 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
722 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
724 IWL_WARNING("check CCK & auto detect %d | %d\n",
727 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
728 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
730 IWL_WARNING("check TGG and auto detect %d | %d\n",
734 IWL_WARNING("Tuning to channel %d\n",
735 le16_to_cpu(rxon
->channel
));
738 IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
745 * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
746 * @priv: staging_rxon is compared to active_rxon
748 * If the RXON structure is changing enough to require a new tune,
749 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
750 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
752 static int iwl4965_full_rxon_required(struct iwl_priv
*priv
)
755 /* These items are only settable from the full RXON command */
756 if (!(priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ||
757 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
758 priv
->active_rxon
.bssid_addr
) ||
759 compare_ether_addr(priv
->staging_rxon
.node_addr
,
760 priv
->active_rxon
.node_addr
) ||
761 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
762 priv
->active_rxon
.wlap_bssid_addr
) ||
763 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
764 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
765 (priv
->staging_rxon
.air_propagation
!=
766 priv
->active_rxon
.air_propagation
) ||
767 (priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
!=
768 priv
->active_rxon
.ofdm_ht_single_stream_basic_rates
) ||
769 (priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
!=
770 priv
->active_rxon
.ofdm_ht_dual_stream_basic_rates
) ||
771 (priv
->staging_rxon
.rx_chain
!= priv
->active_rxon
.rx_chain
) ||
772 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
775 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
776 * be updated with the RXON_ASSOC command -- however only some
777 * flag transitions are allowed using RXON_ASSOC */
779 /* Check if we are not switching bands */
780 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
781 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
784 /* Check if we are switching association toggle */
785 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
786 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
792 static int iwl4965_send_rxon_assoc(struct iwl_priv
*priv
)
795 struct iwl4965_rx_packet
*res
= NULL
;
796 struct iwl4965_rxon_assoc_cmd rxon_assoc
;
797 struct iwl_host_cmd cmd
= {
798 .id
= REPLY_RXON_ASSOC
,
799 .len
= sizeof(rxon_assoc
),
800 .meta
.flags
= CMD_WANT_SKB
,
803 const struct iwl4965_rxon_cmd
*rxon1
= &priv
->staging_rxon
;
804 const struct iwl4965_rxon_cmd
*rxon2
= &priv
->active_rxon
;
806 if ((rxon1
->flags
== rxon2
->flags
) &&
807 (rxon1
->filter_flags
== rxon2
->filter_flags
) &&
808 (rxon1
->cck_basic_rates
== rxon2
->cck_basic_rates
) &&
809 (rxon1
->ofdm_ht_single_stream_basic_rates
==
810 rxon2
->ofdm_ht_single_stream_basic_rates
) &&
811 (rxon1
->ofdm_ht_dual_stream_basic_rates
==
812 rxon2
->ofdm_ht_dual_stream_basic_rates
) &&
813 (rxon1
->rx_chain
== rxon2
->rx_chain
) &&
814 (rxon1
->ofdm_basic_rates
== rxon2
->ofdm_basic_rates
)) {
815 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
819 rxon_assoc
.flags
= priv
->staging_rxon
.flags
;
820 rxon_assoc
.filter_flags
= priv
->staging_rxon
.filter_flags
;
821 rxon_assoc
.ofdm_basic_rates
= priv
->staging_rxon
.ofdm_basic_rates
;
822 rxon_assoc
.cck_basic_rates
= priv
->staging_rxon
.cck_basic_rates
;
823 rxon_assoc
.reserved
= 0;
824 rxon_assoc
.ofdm_ht_single_stream_basic_rates
=
825 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
;
826 rxon_assoc
.ofdm_ht_dual_stream_basic_rates
=
827 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
;
828 rxon_assoc
.rx_chain_select_flags
= priv
->staging_rxon
.rx_chain
;
830 rc
= iwl_send_cmd_sync(priv
, &cmd
);
834 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
835 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
836 IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n");
840 priv
->alloc_rxb_skb
--;
841 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
847 * iwl4965_commit_rxon - commit staging_rxon to hardware
849 * The RXON command in staging_rxon is committed to the hardware and
850 * the active_rxon structure is updated with the new data. This
851 * function correctly transitions out of the RXON_ASSOC_MSK state if
852 * a HW tune is required based on the RXON structure changes.
854 static int iwl4965_commit_rxon(struct iwl_priv
*priv
)
856 /* cast away the const for active_rxon in this function */
857 struct iwl4965_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
858 DECLARE_MAC_BUF(mac
);
861 if (!iwl4965_is_alive(priv
))
864 /* always get timestamp with Rx frame */
865 priv
->staging_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
867 rc
= iwl4965_check_rxon_cmd(&priv
->staging_rxon
);
869 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
873 /* If we don't need to send a full RXON, we can use
874 * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
875 * and other flags for the current radio configuration. */
876 if (!iwl4965_full_rxon_required(priv
)) {
877 rc
= iwl4965_send_rxon_assoc(priv
);
879 IWL_ERROR("Error setting RXON_ASSOC "
880 "configuration (%d).\n", rc
);
884 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
889 /* station table will be cleared */
890 priv
->assoc_station_added
= 0;
892 #ifdef CONFIG_IWL4965_SENSITIVITY
893 priv
->sensitivity_data
.state
= IWL_SENS_CALIB_NEED_REINIT
;
894 if (!priv
->error_recovering
)
895 priv
->start_calib
= 0;
897 iwl4965_init_sensitivity(priv
, CMD_ASYNC
, 1);
898 #endif /* CONFIG_IWL4965_SENSITIVITY */
900 /* If we are currently associated and the new config requires
901 * an RXON_ASSOC and the new config wants the associated mask enabled,
902 * we must clear the associated from the active configuration
903 * before we apply the new config */
904 if (iwl4965_is_associated(priv
) &&
905 (priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
)) {
906 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
907 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
909 rc
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
910 sizeof(struct iwl4965_rxon_cmd
),
913 /* If the mask clearing failed then we set
914 * active_rxon back to what it was previously */
916 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
917 IWL_ERROR("Error clearing ASSOC_MSK on current "
918 "configuration (%d).\n", rc
);
923 IWL_DEBUG_INFO("Sending RXON\n"
924 "* with%s RXON_FILTER_ASSOC_MSK\n"
927 ((priv
->staging_rxon
.filter_flags
&
928 RXON_FILTER_ASSOC_MSK
) ? "" : "out"),
929 le16_to_cpu(priv
->staging_rxon
.channel
),
930 print_mac(mac
, priv
->staging_rxon
.bssid_addr
));
932 iwl4965_set_rxon_hwcrypto(priv
, priv
->cfg
->mod_params
->hw_crypto
);
933 /* Apply the new configuration */
934 rc
= iwl_send_cmd_pdu(priv
, REPLY_RXON
,
935 sizeof(struct iwl4965_rxon_cmd
), &priv
->staging_rxon
);
937 IWL_ERROR("Error setting new configuration (%d).\n", rc
);
941 iwlcore_clear_stations_table(priv
);
943 #ifdef CONFIG_IWL4965_SENSITIVITY
944 if (!priv
->error_recovering
)
945 priv
->start_calib
= 0;
947 priv
->sensitivity_data
.state
= IWL_SENS_CALIB_NEED_REINIT
;
948 iwl4965_init_sensitivity(priv
, CMD_ASYNC
, 1);
949 #endif /* CONFIG_IWL4965_SENSITIVITY */
951 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
953 /* If we issue a new RXON command which required a tune then we must
954 * send a new TXPOWER command or we won't be able to Tx any frames */
955 rc
= iwl4965_hw_reg_send_txpower(priv
);
957 IWL_ERROR("Error setting Tx power (%d).\n", rc
);
961 /* Add the broadcast address so we can send broadcast frames */
962 if (iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0) ==
963 IWL_INVALID_STATION
) {
964 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
968 /* If we have set the ASSOC_MSK and we are in BSS mode then
969 * add the IWL_AP_ID to the station rate table */
970 if (iwl4965_is_associated(priv
) &&
971 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)) {
972 if (iwl4965_rxon_add_station(priv
, priv
->active_rxon
.bssid_addr
, 1)
973 == IWL_INVALID_STATION
) {
974 IWL_ERROR("Error adding AP address for transmit.\n");
977 priv
->assoc_station_added
= 1;
983 static int iwl4965_send_bt_config(struct iwl_priv
*priv
)
985 struct iwl4965_bt_cmd bt_cmd
= {
993 return iwl_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
994 sizeof(struct iwl4965_bt_cmd
), &bt_cmd
);
997 static int iwl4965_send_scan_abort(struct iwl_priv
*priv
)
1000 struct iwl4965_rx_packet
*res
;
1001 struct iwl_host_cmd cmd
= {
1002 .id
= REPLY_SCAN_ABORT_CMD
,
1003 .meta
.flags
= CMD_WANT_SKB
,
1006 /* If there isn't a scan actively going on in the hardware
1007 * then we are in between scan bands and not actually
1008 * actively scanning, so don't send the abort command */
1009 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1010 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1014 rc
= iwl_send_cmd_sync(priv
, &cmd
);
1016 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1020 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1021 if (res
->u
.status
!= CAN_ABORT_STATUS
) {
1022 /* The scan abort will return 1 for success or
1023 * 2 for "failure". A failure condition can be
1024 * due to simply not being in an active scan which
1025 * can occur if we send the scan abort before we
1026 * the microcode has notified us that a scan is
1028 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res
->u
.status
);
1029 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1030 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
1033 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1038 static int iwl4965_card_state_sync_callback(struct iwl_priv
*priv
,
1039 struct iwl_cmd
*cmd
,
1040 struct sk_buff
*skb
)
1048 * Use: Sets the device's internal card state to enable, disable, or halt
1050 * When in the 'enable' state the card operates as normal.
1051 * When in the 'disable' state, the card enters into a low power mode.
1052 * When in the 'halt' state, the card is shut down and must be fully
1053 * restarted to come back on.
1055 static int iwl4965_send_card_state(struct iwl_priv
*priv
, u32 flags
, u8 meta_flag
)
1057 struct iwl_host_cmd cmd
= {
1058 .id
= REPLY_CARD_STATE_CMD
,
1061 .meta
.flags
= meta_flag
,
1064 if (meta_flag
& CMD_ASYNC
)
1065 cmd
.meta
.u
.callback
= iwl4965_card_state_sync_callback
;
1067 return iwl_send_cmd(priv
, &cmd
);
1070 static int iwl4965_add_sta_sync_callback(struct iwl_priv
*priv
,
1071 struct iwl_cmd
*cmd
, struct sk_buff
*skb
)
1073 struct iwl4965_rx_packet
*res
= NULL
;
1076 IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n");
1080 res
= (struct iwl4965_rx_packet
*)skb
->data
;
1081 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1082 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1087 switch (res
->u
.add_sta
.status
) {
1088 case ADD_STA_SUCCESS_MSK
:
1094 /* We didn't cache the SKB; let the caller free it */
1098 int iwl4965_send_add_station(struct iwl_priv
*priv
,
1099 struct iwl4965_addsta_cmd
*sta
, u8 flags
)
1101 struct iwl4965_rx_packet
*res
= NULL
;
1103 struct iwl_host_cmd cmd
= {
1104 .id
= REPLY_ADD_STA
,
1105 .len
= sizeof(struct iwl4965_addsta_cmd
),
1106 .meta
.flags
= flags
,
1110 if (flags
& CMD_ASYNC
)
1111 cmd
.meta
.u
.callback
= iwl4965_add_sta_sync_callback
;
1113 cmd
.meta
.flags
|= CMD_WANT_SKB
;
1115 rc
= iwl_send_cmd(priv
, &cmd
);
1117 if (rc
|| (flags
& CMD_ASYNC
))
1120 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1121 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1122 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1128 switch (res
->u
.add_sta
.status
) {
1129 case ADD_STA_SUCCESS_MSK
:
1130 IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
1134 IWL_WARNING("REPLY_ADD_STA failed\n");
1139 priv
->alloc_rxb_skb
--;
1140 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1145 static int iwl4965_set_ccmp_dynamic_key_info(struct iwl_priv
*priv
,
1146 struct ieee80211_key_conf
*keyconf
,
1149 unsigned long flags
;
1150 __le16 key_flags
= 0;
1152 key_flags
|= (STA_KEY_FLG_CCMP
| STA_KEY_FLG_MAP_KEY_MSK
);
1153 key_flags
|= cpu_to_le16(keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
1155 if (sta_id
== priv
->hw_setting
.bcast_sta_id
)
1156 key_flags
|= STA_KEY_MULTICAST_MSK
;
1158 keyconf
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
1159 keyconf
->hw_key_idx
= keyconf
->keyidx
;
1161 key_flags
&= ~STA_KEY_FLG_INVALID
;
1163 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1164 priv
->stations
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
1165 priv
->stations
[sta_id
].keyinfo
.keylen
= keyconf
->keylen
;
1167 memcpy(priv
->stations
[sta_id
].keyinfo
.key
, keyconf
->key
,
1170 memcpy(priv
->stations
[sta_id
].sta
.key
.key
, keyconf
->key
,
1173 priv
->stations
[sta_id
].sta
.key
.key_offset
1174 = (sta_id
% STA_KEY_MAX_NUM
);/*FIXME*/
1175 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
1176 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1177 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1179 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1181 IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
1182 return iwl4965_send_add_station(priv
,
1183 &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
1186 static int iwl4965_set_tkip_dynamic_key_info(struct iwl_priv
*priv
,
1187 struct ieee80211_key_conf
*keyconf
,
1190 unsigned long flags
;
1193 keyconf
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
1194 keyconf
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
1195 keyconf
->hw_key_idx
= keyconf
->keyidx
;
1197 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1199 priv
->stations
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
1200 priv
->stations
[sta_id
].keyinfo
.conf
= keyconf
;
1201 priv
->stations
[sta_id
].keyinfo
.keylen
= 16;
1203 /* This copy is acutally not needed: we get the key with each TX */
1204 memcpy(priv
->stations
[sta_id
].keyinfo
.key
, keyconf
->key
, 16);
1206 memcpy(priv
->stations
[sta_id
].sta
.key
.key
, keyconf
->key
, 16);
1208 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1213 static int iwl4965_clear_sta_key_info(struct iwl_priv
*priv
, u8 sta_id
)
1215 unsigned long flags
;
1217 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1218 memset(&priv
->stations
[sta_id
].keyinfo
, 0, sizeof(struct iwl4965_hw_key
));
1219 memset(&priv
->stations
[sta_id
].sta
.key
, 0, sizeof(struct iwl4965_keyinfo
));
1220 priv
->stations
[sta_id
].sta
.key
.key_flags
= STA_KEY_FLG_NO_ENC
;
1221 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1222 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1223 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1225 IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
1226 iwl4965_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, 0);
1230 static int iwl4965_set_dynamic_key(struct iwl_priv
*priv
,
1231 struct ieee80211_key_conf
*key
, u8 sta_id
)
1237 ret
= iwl4965_set_ccmp_dynamic_key_info(priv
, key
, sta_id
);
1240 ret
= iwl4965_set_tkip_dynamic_key_info(priv
, key
, sta_id
);
1246 IWL_ERROR("Unknown alg: %s alg = %d\n", __func__
, key
->alg
);
1253 static int iwl4965_remove_static_key(struct iwl_priv
*priv
)
1255 int ret
= -EOPNOTSUPP
;
1260 static int iwl4965_set_static_key(struct iwl_priv
*priv
,
1261 struct ieee80211_key_conf
*key
)
1263 if (key
->alg
== ALG_WEP
)
1266 IWL_ERROR("Static key invalid: alg %d\n", key
->alg
);
1270 static void iwl4965_clear_free_frames(struct iwl_priv
*priv
)
1272 struct list_head
*element
;
1274 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
1275 priv
->frames_count
);
1277 while (!list_empty(&priv
->free_frames
)) {
1278 element
= priv
->free_frames
.next
;
1280 kfree(list_entry(element
, struct iwl4965_frame
, list
));
1281 priv
->frames_count
--;
1284 if (priv
->frames_count
) {
1285 IWL_WARNING("%d frames still in use. Did we lose one?\n",
1286 priv
->frames_count
);
1287 priv
->frames_count
= 0;
1291 static struct iwl4965_frame
*iwl4965_get_free_frame(struct iwl_priv
*priv
)
1293 struct iwl4965_frame
*frame
;
1294 struct list_head
*element
;
1295 if (list_empty(&priv
->free_frames
)) {
1296 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
1298 IWL_ERROR("Could not allocate frame!\n");
1302 priv
->frames_count
++;
1306 element
= priv
->free_frames
.next
;
1308 return list_entry(element
, struct iwl4965_frame
, list
);
1311 static void iwl4965_free_frame(struct iwl_priv
*priv
, struct iwl4965_frame
*frame
)
1313 memset(frame
, 0, sizeof(*frame
));
1314 list_add(&frame
->list
, &priv
->free_frames
);
1317 unsigned int iwl4965_fill_beacon_frame(struct iwl_priv
*priv
,
1318 struct ieee80211_hdr
*hdr
,
1319 const u8
*dest
, int left
)
1322 if (!iwl4965_is_associated(priv
) || !priv
->ibss_beacon
||
1323 ((priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) &&
1324 (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
)))
1327 if (priv
->ibss_beacon
->len
> left
)
1330 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
1332 return priv
->ibss_beacon
->len
;
1335 static u8
iwl4965_rate_get_lowest_plcp(int rate_mask
)
1339 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
1340 i
= iwl4965_rates
[i
].next_ieee
) {
1341 if (rate_mask
& (1 << i
))
1342 return iwl4965_rates
[i
].plcp
;
1345 return IWL_RATE_INVALID
;
1348 static int iwl4965_send_beacon_cmd(struct iwl_priv
*priv
)
1350 struct iwl4965_frame
*frame
;
1351 unsigned int frame_size
;
1355 frame
= iwl4965_get_free_frame(priv
);
1358 IWL_ERROR("Could not obtain free frame buffer for beacon "
1363 if (!(priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)) {
1364 rate
= iwl4965_rate_get_lowest_plcp(priv
->active_rate_basic
&
1366 if (rate
== IWL_INVALID_RATE
)
1367 rate
= IWL_RATE_6M_PLCP
;
1369 rate
= iwl4965_rate_get_lowest_plcp(priv
->active_rate_basic
& 0xF);
1370 if (rate
== IWL_INVALID_RATE
)
1371 rate
= IWL_RATE_1M_PLCP
;
1374 frame_size
= iwl4965_hw_get_beacon_cmd(priv
, frame
, rate
);
1376 rc
= iwl_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
1379 iwl4965_free_frame(priv
, frame
);
1384 /******************************************************************************
1386 * Misc. internal state and helper functions
1388 ******************************************************************************/
1390 static void iwl4965_unset_hw_setting(struct iwl_priv
*priv
)
1392 if (priv
->hw_setting
.shared_virt
)
1393 pci_free_consistent(priv
->pci_dev
,
1394 sizeof(struct iwl4965_shared
),
1395 priv
->hw_setting
.shared_virt
,
1396 priv
->hw_setting
.shared_phys
);
1400 * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field
1402 * return : set the bit for each supported rate insert in ie
1404 static u16
iwl4965_supported_rate_to_ie(u8
*ie
, u16 supported_rate
,
1405 u16 basic_rate
, int *left
)
1407 u16 ret_rates
= 0, bit
;
1412 for (bit
= 1, i
= 0; i
< IWL_RATE_COUNT
; i
++, bit
<<= 1) {
1413 if (bit
& supported_rate
) {
1415 rates
[*cnt
] = iwl4965_rates
[i
].ieee
|
1416 ((bit
& basic_rate
) ? 0x80 : 0x00);
1420 (*cnt
>= IWL_SUPPORTED_RATES_IE_LEN
))
1429 * iwl4965_fill_probe_req - fill in all required fields and IE for probe request
1431 static u16
iwl4965_fill_probe_req(struct iwl_priv
*priv
,
1432 enum ieee80211_band band
,
1433 struct ieee80211_mgmt
*frame
,
1434 int left
, int is_direct
)
1438 u16 active_rates
, ret_rates
, cck_rates
, active_rate_basic
;
1439 #ifdef CONFIG_IWL4965_HT
1440 const struct ieee80211_supported_band
*sband
=
1441 iwl4965_get_hw_mode(priv
, band
);
1442 #endif /* CONFIG_IWL4965_HT */
1444 /* Make sure there is enough space for the probe request,
1445 * two mandatory IEs and the data */
1451 frame
->frame_control
= cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
);
1452 memcpy(frame
->da
, iwl4965_broadcast_addr
, ETH_ALEN
);
1453 memcpy(frame
->sa
, priv
->mac_addr
, ETH_ALEN
);
1454 memcpy(frame
->bssid
, iwl4965_broadcast_addr
, ETH_ALEN
);
1455 frame
->seq_ctrl
= 0;
1457 /* fill in our indirect SSID IE */
1464 pos
= &(frame
->u
.probe_req
.variable
[0]);
1465 *pos
++ = WLAN_EID_SSID
;
1468 /* fill in our direct SSID IE... */
1471 left
-= 2 + priv
->essid_len
;
1474 /* ... fill it in... */
1475 *pos
++ = WLAN_EID_SSID
;
1476 *pos
++ = priv
->essid_len
;
1477 memcpy(pos
, priv
->essid
, priv
->essid_len
);
1478 pos
+= priv
->essid_len
;
1479 len
+= 2 + priv
->essid_len
;
1482 /* fill in supported rate */
1488 /* ... fill it in... */
1489 *pos
++ = WLAN_EID_SUPP_RATES
;
1492 /* exclude 60M rate */
1493 active_rates
= priv
->rates_mask
;
1494 active_rates
&= ~IWL_RATE_60M_MASK
;
1496 active_rate_basic
= active_rates
& IWL_BASIC_RATES_MASK
;
1498 cck_rates
= IWL_CCK_RATES_MASK
& active_rates
;
1499 ret_rates
= iwl4965_supported_rate_to_ie(pos
, cck_rates
,
1500 active_rate_basic
, &left
);
1501 active_rates
&= ~ret_rates
;
1503 ret_rates
= iwl4965_supported_rate_to_ie(pos
, active_rates
,
1504 active_rate_basic
, &left
);
1505 active_rates
&= ~ret_rates
;
1509 if (active_rates
== 0)
1512 /* fill in supported extended rate */
1517 /* ... fill it in... */
1518 *pos
++ = WLAN_EID_EXT_SUPP_RATES
;
1520 iwl4965_supported_rate_to_ie(pos
, active_rates
,
1521 active_rate_basic
, &left
);
1525 #ifdef CONFIG_IWL4965_HT
1526 if (sband
&& sband
->ht_info
.ht_supported
) {
1527 struct ieee80211_ht_cap
*ht_cap
;
1529 *pos
++ = WLAN_EID_HT_CAPABILITY
;
1530 *pos
++ = sizeof(struct ieee80211_ht_cap
);
1531 ht_cap
= (struct ieee80211_ht_cap
*)pos
;
1532 ht_cap
->cap_info
= cpu_to_le16(sband
->ht_info
.cap
);
1533 memcpy(ht_cap
->supp_mcs_set
, sband
->ht_info
.supp_mcs_set
, 16);
1534 ht_cap
->ampdu_params_info
=(sband
->ht_info
.ampdu_factor
&
1535 IEEE80211_HT_CAP_AMPDU_FACTOR
) |
1536 ((sband
->ht_info
.ampdu_density
<< 2) &
1537 IEEE80211_HT_CAP_AMPDU_DENSITY
);
1538 len
+= 2 + sizeof(struct ieee80211_ht_cap
);
1540 #endif /*CONFIG_IWL4965_HT */
1549 static int iwl4965_send_qos_params_command(struct iwl_priv
*priv
,
1550 struct iwl4965_qosparam_cmd
*qos
)
1553 return iwl_send_cmd_pdu(priv
, REPLY_QOS_PARAM
,
1554 sizeof(struct iwl4965_qosparam_cmd
), qos
);
1557 static void iwl4965_activate_qos(struct iwl_priv
*priv
, u8 force
)
1559 unsigned long flags
;
1561 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
1564 if (!priv
->qos_data
.qos_enable
)
1567 spin_lock_irqsave(&priv
->lock
, flags
);
1568 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
1570 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
1571 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
1572 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1573 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
1574 if (priv
->qos_data
.qos_active
)
1575 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1576 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
1578 #ifdef CONFIG_IWL4965_HT
1579 if (priv
->current_ht_config
.is_ht
)
1580 priv
->qos_data
.def_qos_parm
.qos_flags
|= QOS_PARAM_FLG_TGN_MSK
;
1581 #endif /* CONFIG_IWL4965_HT */
1583 spin_unlock_irqrestore(&priv
->lock
, flags
);
1585 if (force
|| iwl4965_is_associated(priv
)) {
1586 IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
1587 priv
->qos_data
.qos_active
,
1588 priv
->qos_data
.def_qos_parm
.qos_flags
);
1590 iwl4965_send_qos_params_command(priv
,
1591 &(priv
->qos_data
.def_qos_parm
));
1596 * Power management (not Tx power!) functions
1598 #define MSEC_TO_USEC 1024
1600 #define NOSLP __constant_cpu_to_le16(0), 0, 0
1601 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
1602 #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
1603 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
1604 __constant_cpu_to_le32(X1), \
1605 __constant_cpu_to_le32(X2), \
1606 __constant_cpu_to_le32(X3), \
1607 __constant_cpu_to_le32(X4)}
1610 /* default power management (not Tx power) table values */
1612 static struct iwl4965_power_vec_entry range_0
[IWL_POWER_AC
] = {
1613 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1614 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
1615 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
1616 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
1617 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
1618 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
1622 static struct iwl4965_power_vec_entry range_1
[IWL_POWER_AC
] = {
1623 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1624 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
1625 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
1626 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
1627 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
1628 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
1629 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
1630 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
1631 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
1632 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
1635 int iwl4965_power_init_handle(struct iwl_priv
*priv
)
1638 struct iwl4965_power_mgr
*pow_data
;
1639 int size
= sizeof(struct iwl4965_power_vec_entry
) * IWL_POWER_AC
;
1642 IWL_DEBUG_POWER("Initialize power \n");
1644 pow_data
= &(priv
->power_data
);
1646 memset(pow_data
, 0, sizeof(*pow_data
));
1648 pow_data
->active_index
= IWL_POWER_RANGE_0
;
1649 pow_data
->dtim_val
= 0xffff;
1651 memcpy(&pow_data
->pwr_range_0
[0], &range_0
[0], size
);
1652 memcpy(&pow_data
->pwr_range_1
[0], &range_1
[0], size
);
1654 rc
= pci_read_config_word(priv
->pci_dev
, PCI_LINK_CTRL
, &pci_pm
);
1658 struct iwl4965_powertable_cmd
*cmd
;
1660 IWL_DEBUG_POWER("adjust power command flags\n");
1662 for (i
= 0; i
< IWL_POWER_AC
; i
++) {
1663 cmd
= &pow_data
->pwr_range_0
[i
].cmd
;
1666 cmd
->flags
&= ~IWL_POWER_PCI_PM_MSK
;
1668 cmd
->flags
|= IWL_POWER_PCI_PM_MSK
;
1674 static int iwl4965_update_power_cmd(struct iwl_priv
*priv
,
1675 struct iwl4965_powertable_cmd
*cmd
, u32 mode
)
1680 struct iwl4965_power_vec_entry
*range
;
1682 struct iwl4965_power_mgr
*pow_data
;
1684 if (mode
> IWL_POWER_INDEX_5
) {
1685 IWL_DEBUG_POWER("Error invalid power mode \n");
1688 pow_data
= &(priv
->power_data
);
1690 if (pow_data
->active_index
== IWL_POWER_RANGE_0
)
1691 range
= &pow_data
->pwr_range_0
[0];
1693 range
= &pow_data
->pwr_range_1
[1];
1695 memcpy(cmd
, &range
[mode
].cmd
, sizeof(struct iwl4965_powertable_cmd
));
1697 #ifdef IWL_MAC80211_DISABLE
1698 if (priv
->assoc_network
!= NULL
) {
1699 unsigned long flags
;
1701 period
= priv
->assoc_network
->tim
.tim_period
;
1703 #endif /*IWL_MAC80211_DISABLE */
1704 skip
= range
[mode
].no_dtim
;
1713 cmd
->flags
&= ~IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1715 __le32 slp_itrvl
= cmd
->sleep_interval
[IWL_POWER_VEC_SIZE
- 1];
1716 max_sleep
= (le32_to_cpu(slp_itrvl
) / period
) * period
;
1717 cmd
->flags
|= IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1720 for (i
= 0; i
< IWL_POWER_VEC_SIZE
; i
++) {
1721 if (le32_to_cpu(cmd
->sleep_interval
[i
]) > max_sleep
)
1722 cmd
->sleep_interval
[i
] = cpu_to_le32(max_sleep
);
1725 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd
->flags
);
1726 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd
->tx_data_timeout
));
1727 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd
->rx_data_timeout
));
1728 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
1729 le32_to_cpu(cmd
->sleep_interval
[0]),
1730 le32_to_cpu(cmd
->sleep_interval
[1]),
1731 le32_to_cpu(cmd
->sleep_interval
[2]),
1732 le32_to_cpu(cmd
->sleep_interval
[3]),
1733 le32_to_cpu(cmd
->sleep_interval
[4]));
1738 static int iwl4965_send_power_mode(struct iwl_priv
*priv
, u32 mode
)
1740 u32
uninitialized_var(final_mode
);
1742 struct iwl4965_powertable_cmd cmd
;
1744 /* If on battery, set to 3,
1745 * if plugged into AC power, set to CAM ("continuously aware mode"),
1746 * else user level */
1748 case IWL_POWER_BATTERY
:
1749 final_mode
= IWL_POWER_INDEX_3
;
1752 final_mode
= IWL_POWER_MODE_CAM
;
1759 cmd
.keep_alive_beacons
= 0;
1761 iwl4965_update_power_cmd(priv
, &cmd
, final_mode
);
1763 rc
= iwl_send_cmd_pdu(priv
, POWER_TABLE_CMD
, sizeof(cmd
), &cmd
);
1765 if (final_mode
== IWL_POWER_MODE_CAM
)
1766 clear_bit(STATUS_POWER_PMI
, &priv
->status
);
1768 set_bit(STATUS_POWER_PMI
, &priv
->status
);
1773 int iwl4965_is_network_packet(struct iwl_priv
*priv
, struct ieee80211_hdr
*header
)
1775 /* Filter incoming packets to determine if they are targeted toward
1776 * this network, discarding packets coming from ourselves */
1777 switch (priv
->iw_mode
) {
1778 case IEEE80211_IF_TYPE_IBSS
: /* Header: Dest. | Source | BSSID */
1779 /* packets from our adapter are dropped (echo) */
1780 if (!compare_ether_addr(header
->addr2
, priv
->mac_addr
))
1782 /* {broad,multi}cast packets to our IBSS go through */
1783 if (is_multicast_ether_addr(header
->addr1
))
1784 return !compare_ether_addr(header
->addr3
, priv
->bssid
);
1785 /* packets to our adapter go through */
1786 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
1787 case IEEE80211_IF_TYPE_STA
: /* Header: Dest. | AP{BSSID} | Source */
1788 /* packets from our adapter are dropped (echo) */
1789 if (!compare_ether_addr(header
->addr3
, priv
->mac_addr
))
1791 /* {broad,multi}cast packets to our BSS go through */
1792 if (is_multicast_ether_addr(header
->addr1
))
1793 return !compare_ether_addr(header
->addr2
, priv
->bssid
);
1794 /* packets to our adapter go through */
1795 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
1803 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
1805 static const char *iwl4965_get_tx_fail_reason(u32 status
)
1807 switch (status
& TX_STATUS_MSK
) {
1808 case TX_STATUS_SUCCESS
:
1810 TX_STATUS_ENTRY(SHORT_LIMIT
);
1811 TX_STATUS_ENTRY(LONG_LIMIT
);
1812 TX_STATUS_ENTRY(FIFO_UNDERRUN
);
1813 TX_STATUS_ENTRY(MGMNT_ABORT
);
1814 TX_STATUS_ENTRY(NEXT_FRAG
);
1815 TX_STATUS_ENTRY(LIFE_EXPIRE
);
1816 TX_STATUS_ENTRY(DEST_PS
);
1817 TX_STATUS_ENTRY(ABORTED
);
1818 TX_STATUS_ENTRY(BT_RETRY
);
1819 TX_STATUS_ENTRY(STA_INVALID
);
1820 TX_STATUS_ENTRY(FRAG_DROPPED
);
1821 TX_STATUS_ENTRY(TID_DISABLE
);
1822 TX_STATUS_ENTRY(FRAME_FLUSHED
);
1823 TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL
);
1824 TX_STATUS_ENTRY(TX_LOCKED
);
1825 TX_STATUS_ENTRY(NO_BEACON_ON_RADAR
);
1832 * iwl4965_scan_cancel - Cancel any currently executing HW scan
1834 * NOTE: priv->mutex is not required before calling this function
1836 static int iwl4965_scan_cancel(struct iwl_priv
*priv
)
1838 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1839 clear_bit(STATUS_SCANNING
, &priv
->status
);
1843 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
1844 if (!test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
1845 IWL_DEBUG_SCAN("Queuing scan abort.\n");
1846 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1847 queue_work(priv
->workqueue
, &priv
->abort_scan
);
1850 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
1852 return test_bit(STATUS_SCANNING
, &priv
->status
);
1859 * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan
1860 * @ms: amount of time to wait (in milliseconds) for scan to abort
1862 * NOTE: priv->mutex must be held before calling this function
1864 static int iwl4965_scan_cancel_timeout(struct iwl_priv
*priv
, unsigned long ms
)
1866 unsigned long now
= jiffies
;
1869 ret
= iwl4965_scan_cancel(priv
);
1871 mutex_unlock(&priv
->mutex
);
1872 while (!time_after(jiffies
, now
+ msecs_to_jiffies(ms
)) &&
1873 test_bit(STATUS_SCANNING
, &priv
->status
))
1875 mutex_lock(&priv
->mutex
);
1877 return test_bit(STATUS_SCANNING
, &priv
->status
);
1883 static void iwl4965_sequence_reset(struct iwl_priv
*priv
)
1885 /* Reset ieee stats */
1887 /* We don't reset the net_device_stats (ieee->stats) on
1890 priv
->last_seq_num
= -1;
1891 priv
->last_frag_num
= -1;
1892 priv
->last_packet_time
= 0;
1894 iwl4965_scan_cancel(priv
);
1897 #define MAX_UCODE_BEACON_INTERVAL 4096
1898 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
1900 static __le16
iwl4965_adjust_beacon_interval(u16 beacon_val
)
1903 u16 beacon_factor
= 0;
1906 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
1907 / MAX_UCODE_BEACON_INTERVAL
;
1908 new_val
= beacon_val
/ beacon_factor
;
1910 return cpu_to_le16(new_val
);
1913 static void iwl4965_setup_rxon_timing(struct iwl_priv
*priv
)
1915 u64 interval_tm_unit
;
1917 unsigned long flags
;
1918 struct ieee80211_conf
*conf
= NULL
;
1921 conf
= ieee80211_get_hw_conf(priv
->hw
);
1923 spin_lock_irqsave(&priv
->lock
, flags
);
1924 priv
->rxon_timing
.timestamp
.dw
[1] = cpu_to_le32(priv
->timestamp1
);
1925 priv
->rxon_timing
.timestamp
.dw
[0] = cpu_to_le32(priv
->timestamp0
);
1927 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
1929 tsf
= priv
->timestamp1
;
1930 tsf
= ((tsf
<< 32) | priv
->timestamp0
);
1932 beacon_int
= priv
->beacon_int
;
1933 spin_unlock_irqrestore(&priv
->lock
, flags
);
1935 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) {
1936 if (beacon_int
== 0) {
1937 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
1938 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
1940 priv
->rxon_timing
.beacon_interval
=
1941 cpu_to_le16(beacon_int
);
1942 priv
->rxon_timing
.beacon_interval
=
1943 iwl4965_adjust_beacon_interval(
1944 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
1947 priv
->rxon_timing
.atim_window
= 0;
1949 priv
->rxon_timing
.beacon_interval
=
1950 iwl4965_adjust_beacon_interval(conf
->beacon_int
);
1951 /* TODO: we need to get atim_window from upper stack
1952 * for now we set to 0 */
1953 priv
->rxon_timing
.atim_window
= 0;
1957 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
1958 result
= do_div(tsf
, interval_tm_unit
);
1959 priv
->rxon_timing
.beacon_init_val
=
1960 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
1963 ("beacon interval %d beacon timer %d beacon tim %d\n",
1964 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
1965 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
1966 le16_to_cpu(priv
->rxon_timing
.atim_window
));
1969 static int iwl4965_scan_initiate(struct iwl_priv
*priv
)
1971 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
1972 IWL_ERROR("APs don't scan.\n");
1976 if (!iwl4965_is_ready_rf(priv
)) {
1977 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
1981 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
1982 IWL_DEBUG_SCAN("Scan already in progress.\n");
1986 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
1987 IWL_DEBUG_SCAN("Scan request while abort pending. "
1992 IWL_DEBUG_INFO("Starting scan...\n");
1993 priv
->scan_bands
= 2;
1994 set_bit(STATUS_SCANNING
, &priv
->status
);
1995 priv
->scan_start
= jiffies
;
1996 priv
->scan_pass_start
= priv
->scan_start
;
1998 queue_work(priv
->workqueue
, &priv
->request_scan
);
2004 static void iwl4965_set_flags_for_phymode(struct iwl_priv
*priv
,
2005 enum ieee80211_band band
)
2007 if (band
== IEEE80211_BAND_5GHZ
) {
2008 priv
->staging_rxon
.flags
&=
2009 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
2010 | RXON_FLG_CCK_MSK
);
2011 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2013 /* Copied from iwl4965_bg_post_associate() */
2014 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
2015 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2017 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2019 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
2020 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2022 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
2023 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
2024 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
2029 * initialize rxon structure with default values from eeprom
2031 static void iwl4965_connection_init_rx_config(struct iwl_priv
*priv
)
2033 const struct iwl_channel_info
*ch_info
;
2035 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
2037 switch (priv
->iw_mode
) {
2038 case IEEE80211_IF_TYPE_AP
:
2039 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
2042 case IEEE80211_IF_TYPE_STA
:
2043 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
2044 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
2047 case IEEE80211_IF_TYPE_IBSS
:
2048 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
2049 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
2050 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
2051 RXON_FILTER_ACCEPT_GRP_MSK
;
2054 case IEEE80211_IF_TYPE_MNTR
:
2055 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
2056 priv
->staging_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
2057 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
2060 IWL_ERROR("Unsupported interface type %d\n", priv
->iw_mode
);
2065 /* TODO: Figure out when short_preamble would be set and cache from
2067 if (!hw_to_local(priv
->hw
)->short_preamble
)
2068 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2070 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2073 ch_info
= iwl_get_channel_info(priv
, priv
->band
,
2074 le16_to_cpu(priv
->staging_rxon
.channel
));
2077 ch_info
= &priv
->channel_info
[0];
2080 * in some case A channels are all non IBSS
2081 * in this case force B/G channel
2083 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) &&
2084 !(is_channel_ibss(ch_info
)))
2085 ch_info
= &priv
->channel_info
[0];
2087 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
2088 priv
->band
= ch_info
->band
;
2090 iwl4965_set_flags_for_phymode(priv
, priv
->band
);
2092 priv
->staging_rxon
.ofdm_basic_rates
=
2093 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2094 priv
->staging_rxon
.cck_basic_rates
=
2095 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2097 priv
->staging_rxon
.flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK
|
2098 RXON_FLG_CHANNEL_MODE_PURE_40_MSK
);
2099 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2100 memcpy(priv
->staging_rxon
.wlap_bssid_addr
, priv
->mac_addr
, ETH_ALEN
);
2101 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
= 0xff;
2102 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
= 0xff;
2103 iwl4965_set_rxon_chain(priv
);
2106 static int iwl4965_set_mode(struct iwl_priv
*priv
, int mode
)
2108 if (mode
== IEEE80211_IF_TYPE_IBSS
) {
2109 const struct iwl_channel_info
*ch_info
;
2111 ch_info
= iwl_get_channel_info(priv
,
2113 le16_to_cpu(priv
->staging_rxon
.channel
));
2115 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
2116 IWL_ERROR("channel %d not IBSS channel\n",
2117 le16_to_cpu(priv
->staging_rxon
.channel
));
2122 priv
->iw_mode
= mode
;
2124 iwl4965_connection_init_rx_config(priv
);
2125 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2127 iwlcore_clear_stations_table(priv
);
2129 /* dont commit rxon if rf-kill is on*/
2130 if (!iwl4965_is_ready_rf(priv
))
2133 cancel_delayed_work(&priv
->scan_check
);
2134 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
2135 IWL_WARNING("Aborted scan still in progress after 100ms\n");
2136 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
2140 iwl4965_commit_rxon(priv
);
2145 static void iwl4965_build_tx_cmd_hwcrypto(struct iwl_priv
*priv
,
2146 struct ieee80211_tx_control
*ctl
,
2147 struct iwl_cmd
*cmd
,
2148 struct sk_buff
*skb_frag
,
2151 struct iwl4965_hw_key
*keyinfo
= &priv
->stations
[sta_id
].keyinfo
;
2153 switch (keyinfo
->alg
) {
2155 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_CCM
;
2156 memcpy(cmd
->cmd
.tx
.key
, keyinfo
->key
, keyinfo
->keylen
);
2157 if (ctl
->flags
& IEEE80211_TXCTL_AMPDU
)
2158 cmd
->cmd
.tx
.tx_flags
|= TX_CMD_FLG_AGG_CCMP_MSK
;
2159 IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
2163 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_TKIP
;
2164 ieee80211_get_tkip_key(keyinfo
->conf
, skb_frag
,
2165 IEEE80211_TKIP_P2_KEY
, cmd
->cmd
.tx
.key
);
2166 IWL_DEBUG_TX("tx_cmd with tkip hwcrypto\n");
2170 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_WEP
|
2171 (ctl
->key_idx
& TX_CMD_SEC_MSK
) << TX_CMD_SEC_SHIFT
;
2173 if (keyinfo
->keylen
== 13)
2174 cmd
->cmd
.tx
.sec_ctl
|= TX_CMD_SEC_KEY128
;
2176 memcpy(&cmd
->cmd
.tx
.key
[3], keyinfo
->key
, keyinfo
->keylen
);
2178 IWL_DEBUG_TX("Configuring packet for WEP encryption "
2179 "with key %d\n", ctl
->key_idx
);
2183 printk(KERN_ERR
"Unknown encode alg %d\n", keyinfo
->alg
);
2189 * handle build REPLY_TX command notification.
2191 static void iwl4965_build_tx_cmd_basic(struct iwl_priv
*priv
,
2192 struct iwl_cmd
*cmd
,
2193 struct ieee80211_tx_control
*ctrl
,
2194 struct ieee80211_hdr
*hdr
,
2195 int is_unicast
, u8 std_id
)
2198 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2199 __le32 tx_flags
= cmd
->cmd
.tx
.tx_flags
;
2201 cmd
->cmd
.tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
2202 if (!(ctrl
->flags
& IEEE80211_TXCTL_NO_ACK
)) {
2203 tx_flags
|= TX_CMD_FLG_ACK_MSK
;
2204 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
)
2205 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2206 if (ieee80211_is_probe_response(fc
) &&
2207 !(le16_to_cpu(hdr
->seq_ctrl
) & 0xf))
2208 tx_flags
|= TX_CMD_FLG_TSF_MSK
;
2210 tx_flags
&= (~TX_CMD_FLG_ACK_MSK
);
2211 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2214 if (ieee80211_is_back_request(fc
))
2215 tx_flags
|= TX_CMD_FLG_ACK_MSK
| TX_CMD_FLG_IMM_BA_RSP_MASK
;
2218 cmd
->cmd
.tx
.sta_id
= std_id
;
2219 if (ieee80211_get_morefrag(hdr
))
2220 tx_flags
|= TX_CMD_FLG_MORE_FRAG_MSK
;
2222 qc
= ieee80211_get_qos_ctrl(hdr
);
2224 cmd
->cmd
.tx
.tid_tspec
= (u8
) (le16_to_cpu(*qc
) & 0xf);
2225 tx_flags
&= ~TX_CMD_FLG_SEQ_CTL_MSK
;
2227 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2229 if (ctrl
->flags
& IEEE80211_TXCTL_USE_RTS_CTS
) {
2230 tx_flags
|= TX_CMD_FLG_RTS_MSK
;
2231 tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
2232 } else if (ctrl
->flags
& IEEE80211_TXCTL_USE_CTS_PROTECT
) {
2233 tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
2234 tx_flags
|= TX_CMD_FLG_CTS_MSK
;
2237 if ((tx_flags
& TX_CMD_FLG_RTS_MSK
) || (tx_flags
& TX_CMD_FLG_CTS_MSK
))
2238 tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
2240 tx_flags
&= ~(TX_CMD_FLG_ANT_SEL_MSK
);
2241 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
) {
2242 if ((fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_ASSOC_REQ
||
2243 (fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_REASSOC_REQ
)
2244 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(3);
2246 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(2);
2248 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= 0;
2251 cmd
->cmd
.tx
.driver_txop
= 0;
2252 cmd
->cmd
.tx
.tx_flags
= tx_flags
;
2253 cmd
->cmd
.tx
.next_frame_len
= 0;
2255 static void iwl_update_tx_stats(struct iwl_priv
*priv
, u16 fc
, u16 len
)
2257 /* 0 - mgmt, 1 - cnt, 2 - data */
2258 int idx
= (fc
& IEEE80211_FCTL_FTYPE
) >> 2;
2259 priv
->tx_stats
[idx
].cnt
++;
2260 priv
->tx_stats
[idx
].bytes
+= len
;
2263 * iwl4965_get_sta_id - Find station's index within station table
2265 * If new IBSS station, create new entry in station table
2267 static int iwl4965_get_sta_id(struct iwl_priv
*priv
,
2268 struct ieee80211_hdr
*hdr
)
2271 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2272 DECLARE_MAC_BUF(mac
);
2274 /* If this frame is broadcast or management, use broadcast station id */
2275 if (((fc
& IEEE80211_FCTL_FTYPE
) != IEEE80211_FTYPE_DATA
) ||
2276 is_multicast_ether_addr(hdr
->addr1
))
2277 return priv
->hw_setting
.bcast_sta_id
;
2279 switch (priv
->iw_mode
) {
2281 /* If we are a client station in a BSS network, use the special
2282 * AP station entry (that's the only station we communicate with) */
2283 case IEEE80211_IF_TYPE_STA
:
2286 /* If we are an AP, then find the station, or use BCAST */
2287 case IEEE80211_IF_TYPE_AP
:
2288 sta_id
= iwl4965_hw_find_station(priv
, hdr
->addr1
);
2289 if (sta_id
!= IWL_INVALID_STATION
)
2291 return priv
->hw_setting
.bcast_sta_id
;
2293 /* If this frame is going out to an IBSS network, find the station,
2294 * or create a new station table entry */
2295 case IEEE80211_IF_TYPE_IBSS
:
2296 sta_id
= iwl4965_hw_find_station(priv
, hdr
->addr1
);
2297 if (sta_id
!= IWL_INVALID_STATION
)
2300 /* Create new station table entry */
2301 sta_id
= iwl4965_add_station_flags(priv
, hdr
->addr1
,
2302 0, CMD_ASYNC
, NULL
);
2304 if (sta_id
!= IWL_INVALID_STATION
)
2307 IWL_DEBUG_DROP("Station %s not in station map. "
2308 "Defaulting to broadcast...\n",
2309 print_mac(mac
, hdr
->addr1
));
2310 iwl_print_hex_dump(IWL_DL_DROP
, (u8
*) hdr
, sizeof(*hdr
));
2311 return priv
->hw_setting
.bcast_sta_id
;
2314 IWL_WARNING("Unknown mode of operation: %d", priv
->iw_mode
);
2315 return priv
->hw_setting
.bcast_sta_id
;
2320 * start REPLY_TX command process
2322 static int iwl4965_tx_skb(struct iwl_priv
*priv
,
2323 struct sk_buff
*skb
, struct ieee80211_tx_control
*ctl
)
2325 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
2326 struct iwl4965_tfd_frame
*tfd
;
2328 int txq_id
= ctl
->queue
;
2329 struct iwl4965_tx_queue
*txq
= NULL
;
2330 struct iwl4965_queue
*q
= NULL
;
2331 dma_addr_t phys_addr
;
2332 dma_addr_t txcmd_phys
;
2333 dma_addr_t scratch_phys
;
2334 struct iwl_cmd
*out_cmd
= NULL
;
2335 u16 len
, idx
, len_org
;
2336 u8 id
, hdr_len
, unicast
;
2341 u8 wait_write_ptr
= 0;
2342 unsigned long flags
;
2345 spin_lock_irqsave(&priv
->lock
, flags
);
2346 if (iwl4965_is_rfkill(priv
)) {
2347 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2352 IWL_DEBUG_DROP("Dropping - !priv->vif\n");
2356 if ((ctl
->tx_rate
->hw_value
& 0xFF) == IWL_INVALID_RATE
) {
2357 IWL_ERROR("ERROR: No TX rate available.\n");
2361 unicast
= !is_multicast_ether_addr(hdr
->addr1
);
2364 fc
= le16_to_cpu(hdr
->frame_control
);
2366 #ifdef CONFIG_IWLWIFI_DEBUG
2367 if (ieee80211_is_auth(fc
))
2368 IWL_DEBUG_TX("Sending AUTH frame\n");
2369 else if (ieee80211_is_assoc_request(fc
))
2370 IWL_DEBUG_TX("Sending ASSOC frame\n");
2371 else if (ieee80211_is_reassoc_request(fc
))
2372 IWL_DEBUG_TX("Sending REASSOC frame\n");
2375 /* drop all data frame if we are not associated */
2376 if (((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_DATA
) &&
2377 (!iwl4965_is_associated(priv
) ||
2378 ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && !priv
->assoc_id
) ||
2379 !priv
->assoc_station_added
)) {
2380 IWL_DEBUG_DROP("Dropping - !iwl4965_is_associated\n");
2384 spin_unlock_irqrestore(&priv
->lock
, flags
);
2386 hdr_len
= ieee80211_get_hdrlen(fc
);
2388 /* Find (or create) index into station table for destination station */
2389 sta_id
= iwl4965_get_sta_id(priv
, hdr
);
2390 if (sta_id
== IWL_INVALID_STATION
) {
2391 DECLARE_MAC_BUF(mac
);
2393 IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
2394 print_mac(mac
, hdr
->addr1
));
2398 IWL_DEBUG_RATE("station Id %d\n", sta_id
);
2400 qc
= ieee80211_get_qos_ctrl(hdr
);
2402 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2403 seq_number
= priv
->stations
[sta_id
].tid
[tid
].seq_number
&
2405 hdr
->seq_ctrl
= cpu_to_le16(seq_number
) |
2407 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG
));
2409 #ifdef CONFIG_IWL4965_HT
2410 /* aggregation is on for this <sta,tid> */
2411 if (ctl
->flags
& IEEE80211_TXCTL_AMPDU
)
2412 txq_id
= priv
->stations
[sta_id
].tid
[tid
].agg
.txq_id
;
2413 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
++;
2414 #endif /* CONFIG_IWL4965_HT */
2417 /* Descriptor for chosen Tx queue */
2418 txq
= &priv
->txq
[txq_id
];
2421 spin_lock_irqsave(&priv
->lock
, flags
);
2423 /* Set up first empty TFD within this queue's circular TFD buffer */
2424 tfd
= &txq
->bd
[q
->write_ptr
];
2425 memset(tfd
, 0, sizeof(*tfd
));
2426 control_flags
= (u32
*) tfd
;
2427 idx
= get_cmd_index(q
, q
->write_ptr
, 0);
2429 /* Set up driver data for this TFD */
2430 memset(&(txq
->txb
[q
->write_ptr
]), 0, sizeof(struct iwl4965_tx_info
));
2431 txq
->txb
[q
->write_ptr
].skb
[0] = skb
;
2432 memcpy(&(txq
->txb
[q
->write_ptr
].status
.control
),
2433 ctl
, sizeof(struct ieee80211_tx_control
));
2435 /* Set up first empty entry in queue's array of Tx/cmd buffers */
2436 out_cmd
= &txq
->cmd
[idx
];
2437 memset(&out_cmd
->hdr
, 0, sizeof(out_cmd
->hdr
));
2438 memset(&out_cmd
->cmd
.tx
, 0, sizeof(out_cmd
->cmd
.tx
));
2441 * Set up the Tx-command (not MAC!) header.
2442 * Store the chosen Tx queue and TFD index within the sequence field;
2443 * after Tx, uCode's Tx response will return this value so driver can
2444 * locate the frame within the tx queue and do post-tx processing.
2446 out_cmd
->hdr
.cmd
= REPLY_TX
;
2447 out_cmd
->hdr
.sequence
= cpu_to_le16((u16
)(QUEUE_TO_SEQ(txq_id
) |
2448 INDEX_TO_SEQ(q
->write_ptr
)));
2450 /* Copy MAC header from skb into command buffer */
2451 memcpy(out_cmd
->cmd
.tx
.hdr
, hdr
, hdr_len
);
2454 * Use the first empty entry in this queue's command buffer array
2455 * to contain the Tx command and MAC header concatenated together
2456 * (payload data will be in another buffer).
2457 * Size of this varies, due to varying MAC header length.
2458 * If end is not dword aligned, we'll have 2 extra bytes at the end
2459 * of the MAC header (device reads on dword boundaries).
2460 * We'll tell device about this padding later.
2462 len
= priv
->hw_setting
.tx_cmd_len
+
2463 sizeof(struct iwl_cmd_header
) + hdr_len
;
2466 len
= (len
+ 3) & ~3;
2473 /* Physical address of this Tx command's header (not MAC header!),
2474 * within command buffer array. */
2475 txcmd_phys
= txq
->dma_addr_cmd
+ sizeof(struct iwl_cmd
) * idx
+
2476 offsetof(struct iwl_cmd
, hdr
);
2478 /* Add buffer containing Tx command and MAC(!) header to TFD's
2480 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, txcmd_phys
, len
);
2482 if (!(ctl
->flags
& IEEE80211_TXCTL_DO_NOT_ENCRYPT
))
2483 iwl4965_build_tx_cmd_hwcrypto(priv
, ctl
, out_cmd
, skb
, sta_id
);
2485 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2486 * if any (802.11 null frames have no payload). */
2487 len
= skb
->len
- hdr_len
;
2489 phys_addr
= pci_map_single(priv
->pci_dev
, skb
->data
+ hdr_len
,
2490 len
, PCI_DMA_TODEVICE
);
2491 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, len
);
2494 /* Tell 4965 about any 2-byte padding after MAC header */
2496 out_cmd
->cmd
.tx
.tx_flags
|= TX_CMD_FLG_MH_PAD_MSK
;
2498 /* Total # bytes to be transmitted */
2499 len
= (u16
)skb
->len
;
2500 out_cmd
->cmd
.tx
.len
= cpu_to_le16(len
);
2502 /* TODO need this for burst mode later on */
2503 iwl4965_build_tx_cmd_basic(priv
, out_cmd
, ctl
, hdr
, unicast
, sta_id
);
2505 /* set is_hcca to 0; it probably will never be implemented */
2506 iwl4965_hw_build_tx_cmd_rate(priv
, out_cmd
, ctl
, hdr
, sta_id
, 0);
2508 iwl_update_tx_stats(priv
, fc
, len
);
2510 scratch_phys
= txcmd_phys
+ sizeof(struct iwl_cmd_header
) +
2511 offsetof(struct iwl4965_tx_cmd
, scratch
);
2512 out_cmd
->cmd
.tx
.dram_lsb_ptr
= cpu_to_le32(scratch_phys
);
2513 out_cmd
->cmd
.tx
.dram_msb_ptr
= iwl_get_dma_hi_address(scratch_phys
);
2515 if (!ieee80211_get_morefrag(hdr
)) {
2516 txq
->need_update
= 1;
2518 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2519 priv
->stations
[sta_id
].tid
[tid
].seq_number
= seq_number
;
2523 txq
->need_update
= 0;
2526 iwl_print_hex_dump(IWL_DL_TX
, out_cmd
->cmd
.payload
,
2527 sizeof(out_cmd
->cmd
.tx
));
2529 iwl_print_hex_dump(IWL_DL_TX
, (u8
*)out_cmd
->cmd
.tx
.hdr
,
2530 ieee80211_get_hdrlen(fc
));
2532 /* Set up entry for this TFD in Tx byte-count array */
2533 iwl4965_tx_queue_update_wr_ptr(priv
, txq
, len
);
2535 /* Tell device the write index *just past* this latest filled TFD */
2536 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
2537 rc
= iwl4965_tx_queue_update_write_ptr(priv
, txq
);
2538 spin_unlock_irqrestore(&priv
->lock
, flags
);
2543 if ((iwl4965_queue_space(q
) < q
->high_mark
)
2544 && priv
->mac80211_registered
) {
2545 if (wait_write_ptr
) {
2546 spin_lock_irqsave(&priv
->lock
, flags
);
2547 txq
->need_update
= 1;
2548 iwl4965_tx_queue_update_write_ptr(priv
, txq
);
2549 spin_unlock_irqrestore(&priv
->lock
, flags
);
2552 ieee80211_stop_queue(priv
->hw
, ctl
->queue
);
2558 spin_unlock_irqrestore(&priv
->lock
, flags
);
2563 static void iwl4965_set_rate(struct iwl_priv
*priv
)
2565 const struct ieee80211_supported_band
*hw
= NULL
;
2566 struct ieee80211_rate
*rate
;
2569 hw
= iwl4965_get_hw_mode(priv
, priv
->band
);
2571 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
2575 priv
->active_rate
= 0;
2576 priv
->active_rate_basic
= 0;
2578 for (i
= 0; i
< hw
->n_bitrates
; i
++) {
2579 rate
= &(hw
->bitrates
[i
]);
2580 if (rate
->hw_value
< IWL_RATE_COUNT
)
2581 priv
->active_rate
|= (1 << rate
->hw_value
);
2584 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
2585 priv
->active_rate
, priv
->active_rate_basic
);
2588 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
2589 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
2592 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
2593 priv
->staging_rxon
.cck_basic_rates
=
2594 ((priv
->active_rate_basic
&
2595 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
2597 priv
->staging_rxon
.cck_basic_rates
=
2598 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2600 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
2601 priv
->staging_rxon
.ofdm_basic_rates
=
2602 ((priv
->active_rate_basic
&
2603 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
2604 IWL_FIRST_OFDM_RATE
) & 0xFF;
2606 priv
->staging_rxon
.ofdm_basic_rates
=
2607 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2610 void iwl4965_radio_kill_sw(struct iwl_priv
*priv
, int disable_radio
)
2612 unsigned long flags
;
2614 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
2617 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
2618 disable_radio
? "OFF" : "ON");
2620 if (disable_radio
) {
2621 iwl4965_scan_cancel(priv
);
2622 /* FIXME: This is a workaround for AP */
2623 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
2624 spin_lock_irqsave(&priv
->lock
, flags
);
2625 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2626 CSR_UCODE_SW_BIT_RFKILL
);
2627 spin_unlock_irqrestore(&priv
->lock
, flags
);
2628 /* call the host command only if no hw rf-kill set */
2629 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
2630 iwl4965_send_card_state(priv
,
2631 CARD_STATE_CMD_DISABLE
,
2633 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2635 /* make sure mac80211 stop sending Tx frame */
2636 if (priv
->mac80211_registered
)
2637 ieee80211_stop_queues(priv
->hw
);
2642 spin_lock_irqsave(&priv
->lock
, flags
);
2643 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2645 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2646 spin_unlock_irqrestore(&priv
->lock
, flags
);
2651 spin_lock_irqsave(&priv
->lock
, flags
);
2652 iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
2653 if (!iwl_grab_nic_access(priv
))
2654 iwl_release_nic_access(priv
);
2655 spin_unlock_irqrestore(&priv
->lock
, flags
);
2657 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
2658 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2659 "disabled by HW switch\n");
2663 queue_work(priv
->workqueue
, &priv
->restart
);
2667 void iwl4965_set_decrypted_flag(struct iwl_priv
*priv
, struct sk_buff
*skb
,
2668 u32 decrypt_res
, struct ieee80211_rx_status
*stats
)
2671 le16_to_cpu(((struct ieee80211_hdr
*)skb
->data
)->frame_control
);
2673 if (priv
->active_rxon
.filter_flags
& RXON_FILTER_DIS_DECRYPT_MSK
)
2676 if (!(fc
& IEEE80211_FCTL_PROTECTED
))
2679 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res
);
2680 switch (decrypt_res
& RX_RES_STATUS_SEC_TYPE_MSK
) {
2681 case RX_RES_STATUS_SEC_TYPE_TKIP
:
2682 /* The uCode has got a bad phase 1 Key, pushes the packet.
2683 * Decryption will be done in SW. */
2684 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2685 RX_RES_STATUS_BAD_KEY_TTAK
)
2688 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2689 RX_RES_STATUS_BAD_ICV_MIC
)
2690 stats
->flag
|= RX_FLAG_MMIC_ERROR
;
2691 case RX_RES_STATUS_SEC_TYPE_WEP
:
2692 case RX_RES_STATUS_SEC_TYPE_CCMP
:
2693 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2694 RX_RES_STATUS_DECRYPT_OK
) {
2695 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
2696 stats
->flag
|= RX_FLAG_DECRYPTED
;
2706 #define IWL_PACKET_RETRY_TIME HZ
2708 int iwl4965_is_duplicate_packet(struct iwl_priv
*priv
, struct ieee80211_hdr
*header
)
2710 u16 sc
= le16_to_cpu(header
->seq_ctrl
);
2711 u16 seq
= (sc
& IEEE80211_SCTL_SEQ
) >> 4;
2712 u16 frag
= sc
& IEEE80211_SCTL_FRAG
;
2713 u16
*last_seq
, *last_frag
;
2714 unsigned long *last_time
;
2716 switch (priv
->iw_mode
) {
2717 case IEEE80211_IF_TYPE_IBSS
:{
2718 struct list_head
*p
;
2719 struct iwl4965_ibss_seq
*entry
= NULL
;
2720 u8
*mac
= header
->addr2
;
2721 int index
= mac
[5] & (IWL_IBSS_MAC_HASH_SIZE
- 1);
2723 __list_for_each(p
, &priv
->ibss_mac_hash
[index
]) {
2724 entry
= list_entry(p
, struct iwl4965_ibss_seq
, list
);
2725 if (!compare_ether_addr(entry
->mac
, mac
))
2728 if (p
== &priv
->ibss_mac_hash
[index
]) {
2729 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
2731 IWL_ERROR("Cannot malloc new mac entry\n");
2734 memcpy(entry
->mac
, mac
, ETH_ALEN
);
2735 entry
->seq_num
= seq
;
2736 entry
->frag_num
= frag
;
2737 entry
->packet_time
= jiffies
;
2738 list_add(&entry
->list
, &priv
->ibss_mac_hash
[index
]);
2741 last_seq
= &entry
->seq_num
;
2742 last_frag
= &entry
->frag_num
;
2743 last_time
= &entry
->packet_time
;
2746 case IEEE80211_IF_TYPE_STA
:
2747 last_seq
= &priv
->last_seq_num
;
2748 last_frag
= &priv
->last_frag_num
;
2749 last_time
= &priv
->last_packet_time
;
2754 if ((*last_seq
== seq
) &&
2755 time_after(*last_time
+ IWL_PACKET_RETRY_TIME
, jiffies
)) {
2756 if (*last_frag
== frag
)
2758 if (*last_frag
+ 1 != frag
)
2759 /* out-of-order fragment */
2765 *last_time
= jiffies
;
2772 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
2774 #include "iwl-spectrum.h"
2776 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
2777 #define BEACON_TIME_MASK_HIGH 0xFF000000
2778 #define TIME_UNIT 1024
2781 * extended beacon time format
2782 * time in usec will be changed into a 32-bit value in 8:24 format
2783 * the high 1 byte is the beacon counts
2784 * the lower 3 bytes is the time in usec within one beacon interval
2787 static u32
iwl4965_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
2791 u32 interval
= beacon_interval
* 1024;
2793 if (!interval
|| !usec
)
2796 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
2797 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
2799 return (quot
<< 24) + rem
;
2802 /* base is usually what we get from ucode with each received frame,
2803 * the same as HW timer counter counting down
2806 static __le32
iwl4965_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
2808 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
2809 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
2810 u32 interval
= beacon_interval
* TIME_UNIT
;
2811 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
2812 (addon
& BEACON_TIME_MASK_HIGH
);
2814 if (base_low
> addon_low
)
2815 res
+= base_low
- addon_low
;
2816 else if (base_low
< addon_low
) {
2817 res
+= interval
+ base_low
- addon_low
;
2822 return cpu_to_le32(res
);
2825 static int iwl4965_get_measurement(struct iwl_priv
*priv
,
2826 struct ieee80211_measurement_params
*params
,
2829 struct iwl4965_spectrum_cmd spectrum
;
2830 struct iwl4965_rx_packet
*res
;
2831 struct iwl_host_cmd cmd
= {
2832 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
2833 .data
= (void *)&spectrum
,
2834 .meta
.flags
= CMD_WANT_SKB
,
2836 u32 add_time
= le64_to_cpu(params
->start_time
);
2838 int spectrum_resp_status
;
2839 int duration
= le16_to_cpu(params
->duration
);
2841 if (iwl4965_is_associated(priv
))
2843 iwl4965_usecs_to_beacons(
2844 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
2845 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2847 memset(&spectrum
, 0, sizeof(spectrum
));
2849 spectrum
.channel_count
= cpu_to_le16(1);
2851 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
2852 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
2853 cmd
.len
= sizeof(spectrum
);
2854 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
2856 if (iwl4965_is_associated(priv
))
2857 spectrum
.start_time
=
2858 iwl4965_add_beacon_time(priv
->last_beacon_time
,
2860 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2862 spectrum
.start_time
= 0;
2864 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
2865 spectrum
.channels
[0].channel
= params
->channel
;
2866 spectrum
.channels
[0].type
= type
;
2867 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
2868 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
2869 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
2871 rc
= iwl_send_cmd_sync(priv
, &cmd
);
2875 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
2876 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
2877 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
2881 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
2882 switch (spectrum_resp_status
) {
2883 case 0: /* Command will be handled */
2884 if (res
->u
.spectrum
.id
!= 0xff) {
2886 ("Replaced existing measurement: %d\n",
2887 res
->u
.spectrum
.id
);
2888 priv
->measurement_status
&= ~MEASUREMENT_READY
;
2890 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
2894 case 1: /* Command will not be handled */
2899 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
2905 static void iwl4965_txstatus_to_ieee(struct iwl_priv
*priv
,
2906 struct iwl4965_tx_info
*tx_sta
)
2909 tx_sta
->status
.ack_signal
= 0;
2910 tx_sta
->status
.excessive_retries
= 0;
2911 tx_sta
->status
.queue_length
= 0;
2912 tx_sta
->status
.queue_number
= 0;
2915 ieee80211_tx_status_irqsafe(priv
->hw
,
2916 tx_sta
->skb
[0], &(tx_sta
->status
));
2918 ieee80211_tx_status(priv
->hw
,
2919 tx_sta
->skb
[0], &(tx_sta
->status
));
2921 tx_sta
->skb
[0] = NULL
;
2925 * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
2927 * When FW advances 'R' index, all entries between old and new 'R' index
2928 * need to be reclaimed. As result, some free space forms. If there is
2929 * enough free space (> low mark), wake the stack that feeds us.
2931 int iwl4965_tx_queue_reclaim(struct iwl_priv
*priv
, int txq_id
, int index
)
2933 struct iwl4965_tx_queue
*txq
= &priv
->txq
[txq_id
];
2934 struct iwl4965_queue
*q
= &txq
->q
;
2937 if ((index
>= q
->n_bd
) || (x2_queue_used(q
, index
) == 0)) {
2938 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
2939 "is out of range [0-%d] %d %d.\n", txq_id
,
2940 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
2944 for (index
= iwl_queue_inc_wrap(index
, q
->n_bd
);
2945 q
->read_ptr
!= index
;
2946 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
2947 if (txq_id
!= IWL_CMD_QUEUE_NUM
) {
2948 iwl4965_txstatus_to_ieee(priv
,
2949 &(txq
->txb
[txq
->q
.read_ptr
]));
2950 iwl4965_hw_txq_free_tfd(priv
, txq
);
2951 } else if (nfreed
> 1) {
2952 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index
,
2953 q
->write_ptr
, q
->read_ptr
);
2954 queue_work(priv
->workqueue
, &priv
->restart
);
2959 /* if (iwl4965_queue_space(q) > q->low_mark && (txq_id >= 0) &&
2960 (txq_id != IWL_CMD_QUEUE_NUM) &&
2961 priv->mac80211_registered)
2962 ieee80211_wake_queue(priv->hw, txq_id); */
2968 static int iwl4965_is_tx_success(u32 status
)
2970 status
&= TX_STATUS_MSK
;
2971 return (status
== TX_STATUS_SUCCESS
)
2972 || (status
== TX_STATUS_DIRECT_DONE
);
2975 /******************************************************************************
2977 * Generic RX handler implementations
2979 ******************************************************************************/
2980 #ifdef CONFIG_IWL4965_HT
2982 static inline int iwl4965_get_ra_sta_id(struct iwl_priv
*priv
,
2983 struct ieee80211_hdr
*hdr
)
2985 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)
2988 u8
*da
= ieee80211_get_DA(hdr
);
2989 return iwl4965_hw_find_station(priv
, da
);
2993 static struct ieee80211_hdr
*iwl4965_tx_queue_get_hdr(
2994 struct iwl_priv
*priv
, int txq_id
, int idx
)
2996 if (priv
->txq
[txq_id
].txb
[idx
].skb
[0])
2997 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
2998 txb
[idx
].skb
[0]->data
;
3002 static inline u32
iwl4965_get_scd_ssn(struct iwl4965_tx_resp
*tx_resp
)
3004 __le32
*scd_ssn
= (__le32
*)((u32
*)&tx_resp
->status
+
3005 tx_resp
->frame_count
);
3006 return le32_to_cpu(*scd_ssn
) & MAX_SN
;
3011 * iwl4965_tx_status_reply_tx - Handle Tx rspnse for frames in aggregation queue
3013 static int iwl4965_tx_status_reply_tx(struct iwl_priv
*priv
,
3014 struct iwl4965_ht_agg
*agg
,
3015 struct iwl4965_tx_resp_agg
*tx_resp
,
3019 struct agg_tx_status
*frame_status
= &tx_resp
->status
;
3020 struct ieee80211_tx_status
*tx_status
= NULL
;
3021 struct ieee80211_hdr
*hdr
= NULL
;
3026 if (agg
->wait_for_ba
)
3027 IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
3029 agg
->frame_count
= tx_resp
->frame_count
;
3030 agg
->start_idx
= start_idx
;
3031 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
3034 /* # frames attempted by Tx command */
3035 if (agg
->frame_count
== 1) {
3036 /* Only one frame was attempted; no block-ack will arrive */
3037 status
= le16_to_cpu(frame_status
[0].status
);
3038 seq
= le16_to_cpu(frame_status
[0].sequence
);
3039 idx
= SEQ_TO_INDEX(seq
);
3040 txq_id
= SEQ_TO_QUEUE(seq
);
3042 /* FIXME: code repetition */
3043 IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
3044 agg
->frame_count
, agg
->start_idx
, idx
);
3046 tx_status
= &(priv
->txq
[txq_id
].txb
[idx
].status
);
3047 tx_status
->retry_count
= tx_resp
->failure_frame
;
3048 tx_status
->queue_number
= status
& 0xff;
3049 tx_status
->queue_length
= tx_resp
->failure_rts
;
3050 tx_status
->control
.flags
&= ~IEEE80211_TXCTL_AMPDU
;
3051 tx_status
->flags
= iwl4965_is_tx_success(status
)?
3052 IEEE80211_TX_STATUS_ACK
: 0;
3053 iwl4965_hwrate_to_tx_control(priv
,
3054 le32_to_cpu(tx_resp
->rate_n_flags
),
3055 &tx_status
->control
);
3056 /* FIXME: code repetition end */
3058 IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
3059 status
& 0xff, tx_resp
->failure_frame
);
3060 IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n",
3061 iwl4965_hw_get_rate_n_flags(tx_resp
->rate_n_flags
));
3063 agg
->wait_for_ba
= 0;
3065 /* Two or more frames were attempted; expect block-ack */
3067 int start
= agg
->start_idx
;
3069 /* Construct bit-map of pending frames within Tx window */
3070 for (i
= 0; i
< agg
->frame_count
; i
++) {
3072 status
= le16_to_cpu(frame_status
[i
].status
);
3073 seq
= le16_to_cpu(frame_status
[i
].sequence
);
3074 idx
= SEQ_TO_INDEX(seq
);
3075 txq_id
= SEQ_TO_QUEUE(seq
);
3077 if (status
& (AGG_TX_STATE_FEW_BYTES_MSK
|
3078 AGG_TX_STATE_ABORT_MSK
))
3081 IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
3082 agg
->frame_count
, txq_id
, idx
);
3084 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, idx
);
3086 sc
= le16_to_cpu(hdr
->seq_ctrl
);
3087 if (idx
!= (SEQ_TO_SN(sc
) & 0xff)) {
3088 IWL_ERROR("BUG_ON idx doesn't match seq control"
3089 " idx=%d, seq_idx=%d, seq=%d\n",
3095 IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n",
3096 i
, idx
, SEQ_TO_SN(sc
));
3100 sh
= (start
- idx
) + 0xff;
3101 bitmap
= bitmap
<< sh
;
3104 } else if (sh
< -64)
3105 sh
= 0xff - (start
- idx
);
3109 bitmap
= bitmap
<< sh
;
3112 bitmap
|= (1 << sh
);
3113 IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n",
3114 start
, (u32
)(bitmap
& 0xFFFFFFFF));
3117 agg
->bitmap
= bitmap
;
3118 agg
->start_idx
= start
;
3119 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
3120 IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n",
3121 agg
->frame_count
, agg
->start_idx
,
3122 (unsigned long long)agg
->bitmap
);
3125 agg
->wait_for_ba
= 1;
3132 * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response
3134 static void iwl4965_rx_reply_tx(struct iwl_priv
*priv
,
3135 struct iwl4965_rx_mem_buffer
*rxb
)
3137 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3138 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3139 int txq_id
= SEQ_TO_QUEUE(sequence
);
3140 int index
= SEQ_TO_INDEX(sequence
);
3141 struct iwl4965_tx_queue
*txq
= &priv
->txq
[txq_id
];
3142 struct ieee80211_tx_status
*tx_status
;
3143 struct iwl4965_tx_resp
*tx_resp
= (void *)&pkt
->u
.raw
[0];
3144 u32 status
= le32_to_cpu(tx_resp
->status
);
3145 #ifdef CONFIG_IWL4965_HT
3146 int tid
= MAX_TID_COUNT
, sta_id
= IWL_INVALID_STATION
;
3147 struct ieee80211_hdr
*hdr
;
3151 if ((index
>= txq
->q
.n_bd
) || (x2_queue_used(&txq
->q
, index
) == 0)) {
3152 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
3153 "is out of range [0-%d] %d %d\n", txq_id
,
3154 index
, txq
->q
.n_bd
, txq
->q
.write_ptr
,
3159 #ifdef CONFIG_IWL4965_HT
3160 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, index
);
3161 qc
= ieee80211_get_qos_ctrl(hdr
);
3164 tid
= le16_to_cpu(*qc
) & 0xf;
3166 sta_id
= iwl4965_get_ra_sta_id(priv
, hdr
);
3167 if (txq
->sched_retry
&& unlikely(sta_id
== IWL_INVALID_STATION
)) {
3168 IWL_ERROR("Station not known\n");
3172 if (txq
->sched_retry
) {
3173 const u32 scd_ssn
= iwl4965_get_scd_ssn(tx_resp
);
3174 struct iwl4965_ht_agg
*agg
= NULL
;
3179 agg
= &priv
->stations
[sta_id
].tid
[tid
].agg
;
3181 iwl4965_tx_status_reply_tx(priv
, agg
,
3182 (struct iwl4965_tx_resp_agg
*)tx_resp
, index
);
3184 if ((tx_resp
->frame_count
== 1) &&
3185 !iwl4965_is_tx_success(status
)) {
3186 /* TODO: send BAR */
3189 if (txq
->q
.read_ptr
!= (scd_ssn
& 0xff)) {
3191 index
= iwl_queue_dec_wrap(scd_ssn
& 0xff, txq
->q
.n_bd
);
3192 IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
3193 "%d index %d\n", scd_ssn
, index
);
3194 freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3195 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
3197 if (iwl4965_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
3198 txq_id
>= 0 && priv
->mac80211_registered
&&
3199 agg
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
3200 ieee80211_wake_queue(priv
->hw
, txq_id
);
3202 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
3205 #endif /* CONFIG_IWL4965_HT */
3206 tx_status
= &(txq
->txb
[txq
->q
.read_ptr
].status
);
3208 tx_status
->retry_count
= tx_resp
->failure_frame
;
3209 tx_status
->queue_number
= status
;
3210 tx_status
->queue_length
= tx_resp
->bt_kill_count
;
3211 tx_status
->queue_length
|= tx_resp
->failure_rts
;
3213 iwl4965_is_tx_success(status
) ? IEEE80211_TX_STATUS_ACK
: 0;
3214 iwl4965_hwrate_to_tx_control(priv
, le32_to_cpu(tx_resp
->rate_n_flags
),
3215 &tx_status
->control
);
3217 IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags 0x%x "
3218 "retries %d\n", txq_id
, iwl4965_get_tx_fail_reason(status
),
3219 status
, le32_to_cpu(tx_resp
->rate_n_flags
),
3220 tx_resp
->failure_frame
);
3222 IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index
);
3224 int freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3225 #ifdef CONFIG_IWL4965_HT
3226 if (tid
!= MAX_TID_COUNT
)
3227 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
3228 if (iwl4965_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
3230 priv
->mac80211_registered
)
3231 ieee80211_wake_queue(priv
->hw
, txq_id
);
3232 if (tid
!= MAX_TID_COUNT
)
3233 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
3236 #ifdef CONFIG_IWL4965_HT
3238 #endif /* CONFIG_IWL4965_HT */
3240 if (iwl_check_bits(status
, TX_ABORT_REQUIRED_MSK
))
3241 IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
3245 static void iwl4965_rx_reply_alive(struct iwl_priv
*priv
,
3246 struct iwl4965_rx_mem_buffer
*rxb
)
3248 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3249 struct iwl4965_alive_resp
*palive
;
3250 struct delayed_work
*pwork
;
3252 palive
= &pkt
->u
.alive_frame
;
3254 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
3256 palive
->is_valid
, palive
->ver_type
,
3257 palive
->ver_subtype
);
3259 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
3260 IWL_DEBUG_INFO("Initialization Alive received.\n");
3261 memcpy(&priv
->card_alive_init
,
3262 &pkt
->u
.alive_frame
,
3263 sizeof(struct iwl4965_init_alive_resp
));
3264 pwork
= &priv
->init_alive_start
;
3266 IWL_DEBUG_INFO("Runtime Alive received.\n");
3267 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
3268 sizeof(struct iwl4965_alive_resp
));
3269 pwork
= &priv
->alive_start
;
3272 /* We delay the ALIVE response by 5ms to
3273 * give the HW RF Kill time to activate... */
3274 if (palive
->is_valid
== UCODE_VALID_OK
)
3275 queue_delayed_work(priv
->workqueue
, pwork
,
3276 msecs_to_jiffies(5));
3278 IWL_WARNING("uCode did not respond OK.\n");
3281 static void iwl4965_rx_reply_add_sta(struct iwl_priv
*priv
,
3282 struct iwl4965_rx_mem_buffer
*rxb
)
3284 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3286 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
3290 static void iwl4965_rx_reply_error(struct iwl_priv
*priv
,
3291 struct iwl4965_rx_mem_buffer
*rxb
)
3293 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3295 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
3296 "seq 0x%04X ser 0x%08X\n",
3297 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
3298 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
3299 pkt
->u
.err_resp
.cmd_id
,
3300 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
3301 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
3304 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
3306 static void iwl4965_rx_csa(struct iwl_priv
*priv
, struct iwl4965_rx_mem_buffer
*rxb
)
3308 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3309 struct iwl4965_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
3310 struct iwl4965_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
3311 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
3312 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
3313 rxon
->channel
= csa
->channel
;
3314 priv
->staging_rxon
.channel
= csa
->channel
;
3317 static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv
*priv
,
3318 struct iwl4965_rx_mem_buffer
*rxb
)
3320 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
3321 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3322 struct iwl4965_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
3324 if (!report
->state
) {
3325 IWL_DEBUG(IWL_DL_11H
| IWL_DL_INFO
,
3326 "Spectrum Measure Notification: Start\n");
3330 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
3331 priv
->measurement_status
|= MEASUREMENT_READY
;
3335 static void iwl4965_rx_pm_sleep_notif(struct iwl_priv
*priv
,
3336 struct iwl4965_rx_mem_buffer
*rxb
)
3338 #ifdef CONFIG_IWLWIFI_DEBUG
3339 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3340 struct iwl4965_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
3341 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
3342 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
3346 static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
3347 struct iwl4965_rx_mem_buffer
*rxb
)
3349 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3350 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
3351 "notification for %s:\n",
3352 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
3353 iwl_print_hex_dump(IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
3356 static void iwl4965_bg_beacon_update(struct work_struct
*work
)
3358 struct iwl_priv
*priv
=
3359 container_of(work
, struct iwl_priv
, beacon_update
);
3360 struct sk_buff
*beacon
;
3362 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
3363 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
, NULL
);
3366 IWL_ERROR("update beacon failed\n");
3370 mutex_lock(&priv
->mutex
);
3371 /* new beacon skb is allocated every time; dispose previous.*/
3372 if (priv
->ibss_beacon
)
3373 dev_kfree_skb(priv
->ibss_beacon
);
3375 priv
->ibss_beacon
= beacon
;
3376 mutex_unlock(&priv
->mutex
);
3378 iwl4965_send_beacon_cmd(priv
);
3381 static void iwl4965_rx_beacon_notif(struct iwl_priv
*priv
,
3382 struct iwl4965_rx_mem_buffer
*rxb
)
3384 #ifdef CONFIG_IWLWIFI_DEBUG
3385 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3386 struct iwl4965_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
3387 u8 rate
= iwl4965_hw_get_rate(beacon
->beacon_notify_hdr
.rate_n_flags
);
3389 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
3390 "tsf %d %d rate %d\n",
3391 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
3392 beacon
->beacon_notify_hdr
.failure_frame
,
3393 le32_to_cpu(beacon
->ibss_mgr_status
),
3394 le32_to_cpu(beacon
->high_tsf
),
3395 le32_to_cpu(beacon
->low_tsf
), rate
);
3398 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
3399 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
3400 queue_work(priv
->workqueue
, &priv
->beacon_update
);
3403 /* Service response to REPLY_SCAN_CMD (0x80) */
3404 static void iwl4965_rx_reply_scan(struct iwl_priv
*priv
,
3405 struct iwl4965_rx_mem_buffer
*rxb
)
3407 #ifdef CONFIG_IWLWIFI_DEBUG
3408 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3409 struct iwl4965_scanreq_notification
*notif
=
3410 (struct iwl4965_scanreq_notification
*)pkt
->u
.raw
;
3412 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
3416 /* Service SCAN_START_NOTIFICATION (0x82) */
3417 static void iwl4965_rx_scan_start_notif(struct iwl_priv
*priv
,
3418 struct iwl4965_rx_mem_buffer
*rxb
)
3420 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3421 struct iwl4965_scanstart_notification
*notif
=
3422 (struct iwl4965_scanstart_notification
*)pkt
->u
.raw
;
3423 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
3424 IWL_DEBUG_SCAN("Scan start: "
3426 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
3428 notif
->band
? "bg" : "a",
3430 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
3433 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
3434 static void iwl4965_rx_scan_results_notif(struct iwl_priv
*priv
,
3435 struct iwl4965_rx_mem_buffer
*rxb
)
3437 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3438 struct iwl4965_scanresults_notification
*notif
=
3439 (struct iwl4965_scanresults_notification
*)pkt
->u
.raw
;
3441 IWL_DEBUG_SCAN("Scan ch.res: "
3443 "(TSF: 0x%08X:%08X) - %d "
3444 "elapsed=%lu usec (%dms since last)\n",
3446 notif
->band
? "bg" : "a",
3447 le32_to_cpu(notif
->tsf_high
),
3448 le32_to_cpu(notif
->tsf_low
),
3449 le32_to_cpu(notif
->statistics
[0]),
3450 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
3451 jiffies_to_msecs(elapsed_jiffies
3452 (priv
->last_scan_jiffies
, jiffies
)));
3454 priv
->last_scan_jiffies
= jiffies
;
3455 priv
->next_scan_jiffies
= 0;
3458 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
3459 static void iwl4965_rx_scan_complete_notif(struct iwl_priv
*priv
,
3460 struct iwl4965_rx_mem_buffer
*rxb
)
3462 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3463 struct iwl4965_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
3465 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
3466 scan_notif
->scanned_channels
,
3467 scan_notif
->tsf_low
,
3468 scan_notif
->tsf_high
, scan_notif
->status
);
3470 /* The HW is no longer scanning */
3471 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
3473 /* The scan completion notification came in, so kill that timer... */
3474 cancel_delayed_work(&priv
->scan_check
);
3476 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
3477 (priv
->scan_bands
== 2) ? "2.4" : "5.2",
3478 jiffies_to_msecs(elapsed_jiffies
3479 (priv
->scan_pass_start
, jiffies
)));
3481 /* Remove this scanned band from the list
3482 * of pending bands to scan */
3485 /* If a request to abort was given, or the scan did not succeed
3486 * then we reset the scan state machine and terminate,
3487 * re-queuing another scan if one has been requested */
3488 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3489 IWL_DEBUG_INFO("Aborted scan completed.\n");
3490 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
3492 /* If there are more bands on this scan pass reschedule */
3493 if (priv
->scan_bands
> 0)
3497 priv
->last_scan_jiffies
= jiffies
;
3498 priv
->next_scan_jiffies
= 0;
3499 IWL_DEBUG_INFO("Setting scan to off\n");
3501 clear_bit(STATUS_SCANNING
, &priv
->status
);
3503 IWL_DEBUG_INFO("Scan took %dms\n",
3504 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
3506 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3511 priv
->scan_pass_start
= jiffies
;
3512 queue_work(priv
->workqueue
, &priv
->request_scan
);
3515 /* Handle notification from uCode that card's power state is changing
3516 * due to software, hardware, or critical temperature RFKILL */
3517 static void iwl4965_rx_card_state_notif(struct iwl_priv
*priv
,
3518 struct iwl4965_rx_mem_buffer
*rxb
)
3520 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3521 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
3522 unsigned long status
= priv
->status
;
3524 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
3525 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
3526 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
3528 if (flags
& (SW_CARD_DISABLED
| HW_CARD_DISABLED
|
3529 RF_CARD_DISABLED
)) {
3531 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3532 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3534 if (!iwl_grab_nic_access(priv
)) {
3536 priv
, HBUS_TARG_MBX_C
,
3537 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
3539 iwl_release_nic_access(priv
);
3542 if (!(flags
& RXON_CARD_DISABLED
)) {
3543 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
3544 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3545 if (!iwl_grab_nic_access(priv
)) {
3547 priv
, HBUS_TARG_MBX_C
,
3548 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
3550 iwl_release_nic_access(priv
);
3554 if (flags
& RF_CARD_DISABLED
) {
3555 iwl_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3556 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
3557 iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
3558 if (!iwl_grab_nic_access(priv
))
3559 iwl_release_nic_access(priv
);
3563 if (flags
& HW_CARD_DISABLED
)
3564 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3566 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3569 if (flags
& SW_CARD_DISABLED
)
3570 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3572 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3574 if (!(flags
& RXON_CARD_DISABLED
))
3575 iwl4965_scan_cancel(priv
);
3577 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
3578 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
3579 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
3580 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
3581 queue_work(priv
->workqueue
, &priv
->rf_kill
);
3583 wake_up_interruptible(&priv
->wait_command_queue
);
3587 * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
3589 * Setup the RX handlers for each of the reply types sent from the uCode
3592 * This function chains into the hardware specific files for them to setup
3593 * any hardware specific handlers as well.
3595 static void iwl4965_setup_rx_handlers(struct iwl_priv
*priv
)
3597 priv
->rx_handlers
[REPLY_ALIVE
] = iwl4965_rx_reply_alive
;
3598 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl4965_rx_reply_add_sta
;
3599 priv
->rx_handlers
[REPLY_ERROR
] = iwl4965_rx_reply_error
;
3600 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl4965_rx_csa
;
3601 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
3602 iwl4965_rx_spectrum_measure_notif
;
3603 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl4965_rx_pm_sleep_notif
;
3604 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
3605 iwl4965_rx_pm_debug_statistics_notif
;
3606 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl4965_rx_beacon_notif
;
3609 * The same handler is used for both the REPLY to a discrete
3610 * statistics request from the host as well as for the periodic
3611 * statistics notifications (after received beacons) from the uCode.
3613 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl4965_hw_rx_statistics
;
3614 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl4965_hw_rx_statistics
;
3616 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl4965_rx_reply_scan
;
3617 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl4965_rx_scan_start_notif
;
3618 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
3619 iwl4965_rx_scan_results_notif
;
3620 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
3621 iwl4965_rx_scan_complete_notif
;
3622 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl4965_rx_card_state_notif
;
3623 priv
->rx_handlers
[REPLY_TX
] = iwl4965_rx_reply_tx
;
3625 /* Set up hardware specific Rx handlers */
3626 iwl4965_hw_rx_handler_setup(priv
);
3630 * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3631 * @rxb: Rx buffer to reclaim
3633 * If an Rx buffer has an async callback associated with it the callback
3634 * will be executed. The attached skb (if present) will only be freed
3635 * if the callback returns 1
3637 static void iwl4965_tx_cmd_complete(struct iwl_priv
*priv
,
3638 struct iwl4965_rx_mem_buffer
*rxb
)
3640 struct iwl4965_rx_packet
*pkt
= (struct iwl4965_rx_packet
*)rxb
->skb
->data
;
3641 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3642 int txq_id
= SEQ_TO_QUEUE(sequence
);
3643 int index
= SEQ_TO_INDEX(sequence
);
3644 int huge
= sequence
& SEQ_HUGE_FRAME
;
3646 struct iwl_cmd
*cmd
;
3648 /* If a Tx command is being handled and it isn't in the actual
3649 * command queue then there a command routing bug has been introduced
3650 * in the queue management code. */
3651 if (txq_id
!= IWL_CMD_QUEUE_NUM
)
3652 IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
3653 txq_id
, pkt
->hdr
.cmd
);
3654 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
3656 cmd_index
= get_cmd_index(&priv
->txq
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
3657 cmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
3659 /* Input error checking is done when commands are added to queue. */
3660 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
3661 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
3663 } else if (cmd
->meta
.u
.callback
&&
3664 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
3667 iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3669 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
3670 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
3671 wake_up_interruptible(&priv
->wait_command_queue
);
3675 /************************** RX-FUNCTIONS ****************************/
3677 * Rx theory of operation
3679 * Driver allocates a circular buffer of Receive Buffer Descriptors (RBDs),
3680 * each of which point to Receive Buffers to be filled by 4965. These get
3681 * used not only for Rx frames, but for any command response or notification
3682 * from the 4965. The driver and 4965 manage the Rx buffers by means
3683 * of indexes into the circular buffer.
3686 * The host/firmware share two index registers for managing the Rx buffers.
3688 * The READ index maps to the first position that the firmware may be writing
3689 * to -- the driver can read up to (but not including) this position and get
3691 * The READ index is managed by the firmware once the card is enabled.
3693 * The WRITE index maps to the last position the driver has read from -- the
3694 * position preceding WRITE is the last slot the firmware can place a packet.
3696 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
3699 * During initialization, the host sets up the READ queue position to the first
3700 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3702 * When the firmware places a packet in a buffer, it will advance the READ index
3703 * and fire the RX interrupt. The driver can then query the READ index and
3704 * process as many packets as possible, moving the WRITE index forward as it
3705 * resets the Rx queue buffers with new memory.
3707 * The management in the driver is as follows:
3708 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
3709 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
3710 * to replenish the iwl->rxq->rx_free.
3711 * + In iwl4965_rx_replenish (scheduled) if 'processed' != 'read' then the
3712 * iwl->rxq is replenished and the READ INDEX is updated (updating the
3713 * 'processed' and 'read' driver indexes as well)
3714 * + A received packet is processed and handed to the kernel network stack,
3715 * detached from the iwl->rxq. The driver 'processed' index is updated.
3716 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
3717 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
3718 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
3719 * were enough free buffers and RX_STALLED is set it is cleared.
3724 * iwl4965_rx_queue_alloc() Allocates rx_free
3725 * iwl4965_rx_replenish() Replenishes rx_free list from rx_used, and calls
3726 * iwl4965_rx_queue_restock
3727 * iwl4965_rx_queue_restock() Moves available buffers from rx_free into Rx
3728 * queue, updates firmware pointers, and updates
3729 * the WRITE index. If insufficient rx_free buffers
3730 * are available, schedules iwl4965_rx_replenish
3732 * -- enable interrupts --
3733 * ISR - iwl4965_rx() Detach iwl4965_rx_mem_buffers from pool up to the
3734 * READ INDEX, detaching the SKB from the pool.
3735 * Moves the packet buffer from queue to rx_used.
3736 * Calls iwl4965_rx_queue_restock to refill any empty
3743 * iwl4965_rx_queue_space - Return number of free slots available in queue.
3745 static int iwl4965_rx_queue_space(const struct iwl4965_rx_queue
*q
)
3747 int s
= q
->read
- q
->write
;
3750 /* keep some buffer to not confuse full and empty queue */
3758 * iwl4965_rx_queue_update_write_ptr - Update the write pointer for the RX queue
3760 int iwl4965_rx_queue_update_write_ptr(struct iwl_priv
*priv
, struct iwl4965_rx_queue
*q
)
3764 unsigned long flags
;
3766 spin_lock_irqsave(&q
->lock
, flags
);
3768 if (q
->need_update
== 0)
3771 /* If power-saving is in use, make sure device is awake */
3772 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
3773 reg
= iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
3775 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
3776 iwl_set_bit(priv
, CSR_GP_CNTRL
,
3777 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
3781 rc
= iwl_grab_nic_access(priv
);
3785 /* Device expects a multiple of 8 */
3786 iwl_write_direct32(priv
, FH_RSCSR_CHNL0_WPTR
,
3788 iwl_release_nic_access(priv
);
3790 /* Else device is assumed to be awake */
3792 /* Device expects a multiple of 8 */
3793 iwl_write32(priv
, FH_RSCSR_CHNL0_WPTR
, q
->write
& ~0x7);
3799 spin_unlock_irqrestore(&q
->lock
, flags
);
3804 * iwl4965_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
3806 static inline __le32
iwl4965_dma_addr2rbd_ptr(struct iwl_priv
*priv
,
3807 dma_addr_t dma_addr
)
3809 return cpu_to_le32((u32
)(dma_addr
>> 8));
3814 * iwl4965_rx_queue_restock - refill RX queue from pre-allocated pool
3816 * If there are slots in the RX queue that need to be restocked,
3817 * and we have free pre-allocated buffers, fill the ranks as much
3818 * as we can, pulling from rx_free.
3820 * This moves the 'write' index forward to catch up with 'processed', and
3821 * also updates the memory address in the firmware to reference the new
3824 static int iwl4965_rx_queue_restock(struct iwl_priv
*priv
)
3826 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
3827 struct list_head
*element
;
3828 struct iwl4965_rx_mem_buffer
*rxb
;
3829 unsigned long flags
;
3832 spin_lock_irqsave(&rxq
->lock
, flags
);
3833 write
= rxq
->write
& ~0x7;
3834 while ((iwl4965_rx_queue_space(rxq
) > 0) && (rxq
->free_count
)) {
3835 /* Get next free Rx buffer, remove from free list */
3836 element
= rxq
->rx_free
.next
;
3837 rxb
= list_entry(element
, struct iwl4965_rx_mem_buffer
, list
);
3840 /* Point to Rx buffer via next RBD in circular buffer */
3841 rxq
->bd
[rxq
->write
] = iwl4965_dma_addr2rbd_ptr(priv
, rxb
->dma_addr
);
3842 rxq
->queue
[rxq
->write
] = rxb
;
3843 rxq
->write
= (rxq
->write
+ 1) & RX_QUEUE_MASK
;
3846 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3847 /* If the pre-allocated buffer pool is dropping low, schedule to
3849 if (rxq
->free_count
<= RX_LOW_WATERMARK
)
3850 queue_work(priv
->workqueue
, &priv
->rx_replenish
);
3853 /* If we've added more space for the firmware to place data, tell it.
3854 * Increment device's write pointer in multiples of 8. */
3855 if ((write
!= (rxq
->write
& ~0x7))
3856 || (abs(rxq
->write
- rxq
->read
) > 7)) {
3857 spin_lock_irqsave(&rxq
->lock
, flags
);
3858 rxq
->need_update
= 1;
3859 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3860 rc
= iwl4965_rx_queue_update_write_ptr(priv
, rxq
);
3869 * iwl4965_rx_replenish - Move all used packet from rx_used to rx_free
3871 * When moving to rx_free an SKB is allocated for the slot.
3873 * Also restock the Rx queue via iwl4965_rx_queue_restock.
3874 * This is called as a scheduled work item (except for during initialization)
3876 static void iwl4965_rx_allocate(struct iwl_priv
*priv
)
3878 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
3879 struct list_head
*element
;
3880 struct iwl4965_rx_mem_buffer
*rxb
;
3881 unsigned long flags
;
3882 spin_lock_irqsave(&rxq
->lock
, flags
);
3883 while (!list_empty(&rxq
->rx_used
)) {
3884 element
= rxq
->rx_used
.next
;
3885 rxb
= list_entry(element
, struct iwl4965_rx_mem_buffer
, list
);
3887 /* Alloc a new receive buffer */
3889 alloc_skb(priv
->hw_setting
.rx_buf_size
,
3890 __GFP_NOWARN
| GFP_ATOMIC
);
3892 if (net_ratelimit())
3893 printk(KERN_CRIT DRV_NAME
3894 ": Can not allocate SKB buffers\n");
3895 /* We don't reschedule replenish work here -- we will
3896 * call the restock method and if it still needs
3897 * more buffers it will schedule replenish */
3900 priv
->alloc_rxb_skb
++;
3903 /* Get physical address of RB/SKB */
3905 pci_map_single(priv
->pci_dev
, rxb
->skb
->data
,
3906 priv
->hw_setting
.rx_buf_size
, PCI_DMA_FROMDEVICE
);
3907 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
3910 spin_unlock_irqrestore(&rxq
->lock
, flags
);
3914 * this should be called while priv->lock is locked
3916 static void __iwl4965_rx_replenish(void *data
)
3918 struct iwl_priv
*priv
= data
;
3920 iwl4965_rx_allocate(priv
);
3921 iwl4965_rx_queue_restock(priv
);
3925 void iwl4965_rx_replenish(void *data
)
3927 struct iwl_priv
*priv
= data
;
3928 unsigned long flags
;
3930 iwl4965_rx_allocate(priv
);
3932 spin_lock_irqsave(&priv
->lock
, flags
);
3933 iwl4965_rx_queue_restock(priv
);
3934 spin_unlock_irqrestore(&priv
->lock
, flags
);
3937 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
3938 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
3939 * This free routine walks the list of POOL entries and if SKB is set to
3940 * non NULL it is unmapped and freed
3942 static void iwl4965_rx_queue_free(struct iwl_priv
*priv
, struct iwl4965_rx_queue
*rxq
)
3945 for (i
= 0; i
< RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
; i
++) {
3946 if (rxq
->pool
[i
].skb
!= NULL
) {
3947 pci_unmap_single(priv
->pci_dev
,
3948 rxq
->pool
[i
].dma_addr
,
3949 priv
->hw_setting
.rx_buf_size
,
3950 PCI_DMA_FROMDEVICE
);
3951 dev_kfree_skb(rxq
->pool
[i
].skb
);
3955 pci_free_consistent(priv
->pci_dev
, 4 * RX_QUEUE_SIZE
, rxq
->bd
,
3960 int iwl4965_rx_queue_alloc(struct iwl_priv
*priv
)
3962 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
3963 struct pci_dev
*dev
= priv
->pci_dev
;
3966 spin_lock_init(&rxq
->lock
);
3967 INIT_LIST_HEAD(&rxq
->rx_free
);
3968 INIT_LIST_HEAD(&rxq
->rx_used
);
3970 /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
3971 rxq
->bd
= pci_alloc_consistent(dev
, 4 * RX_QUEUE_SIZE
, &rxq
->dma_addr
);
3975 /* Fill the rx_used queue with _all_ of the Rx buffers */
3976 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++)
3977 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
3979 /* Set us so that we have processed and used all buffers, but have
3980 * not restocked the Rx queue with fresh buffers */
3981 rxq
->read
= rxq
->write
= 0;
3982 rxq
->free_count
= 0;
3983 rxq
->need_update
= 0;
3987 void iwl4965_rx_queue_reset(struct iwl_priv
*priv
, struct iwl4965_rx_queue
*rxq
)
3989 unsigned long flags
;
3991 spin_lock_irqsave(&rxq
->lock
, flags
);
3992 INIT_LIST_HEAD(&rxq
->rx_free
);
3993 INIT_LIST_HEAD(&rxq
->rx_used
);
3994 /* Fill the rx_used queue with _all_ of the Rx buffers */
3995 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++) {
3996 /* In the reset function, these buffers may have been allocated
3997 * to an SKB, so we need to unmap and free potential storage */
3998 if (rxq
->pool
[i
].skb
!= NULL
) {
3999 pci_unmap_single(priv
->pci_dev
,
4000 rxq
->pool
[i
].dma_addr
,
4001 priv
->hw_setting
.rx_buf_size
,
4002 PCI_DMA_FROMDEVICE
);
4003 priv
->alloc_rxb_skb
--;
4004 dev_kfree_skb(rxq
->pool
[i
].skb
);
4005 rxq
->pool
[i
].skb
= NULL
;
4007 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
4010 /* Set us so that we have processed and used all buffers, but have
4011 * not restocked the Rx queue with fresh buffers */
4012 rxq
->read
= rxq
->write
= 0;
4013 rxq
->free_count
= 0;
4014 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4017 /* Convert linear signal-to-noise ratio into dB */
4018 static u8 ratio2dB
[100] = {
4019 /* 0 1 2 3 4 5 6 7 8 9 */
4020 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
4021 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
4022 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
4023 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
4024 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
4025 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
4026 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
4027 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
4028 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
4029 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
4032 /* Calculates a relative dB value from a ratio of linear
4033 * (i.e. not dB) signal levels.
4034 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
4035 int iwl4965_calc_db_from_ratio(int sig_ratio
)
4037 /* 1000:1 or higher just report as 60 dB */
4038 if (sig_ratio
>= 1000)
4041 /* 100:1 or higher, divide by 10 and use table,
4042 * add 20 dB to make up for divide by 10 */
4043 if (sig_ratio
>= 100)
4044 return (20 + (int)ratio2dB
[sig_ratio
/10]);
4046 /* We shouldn't see this */
4050 /* Use table for ratios 1:1 - 99:1 */
4051 return (int)ratio2dB
[sig_ratio
];
4054 #define PERFECT_RSSI (-20) /* dBm */
4055 #define WORST_RSSI (-95) /* dBm */
4056 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
4058 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
4059 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
4060 * about formulas used below. */
4061 int iwl4965_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
4064 int degradation
= PERFECT_RSSI
- rssi_dbm
;
4066 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
4067 * as indicator; formula is (signal dbm - noise dbm).
4068 * SNR at or above 40 is a great signal (100%).
4069 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
4070 * Weakest usable signal is usually 10 - 15 dB SNR. */
4072 if (rssi_dbm
- noise_dbm
>= 40)
4074 else if (rssi_dbm
< noise_dbm
)
4076 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
4078 /* Else use just the signal level.
4079 * This formula is a least squares fit of data points collected and
4080 * compared with a reference system that had a percentage (%) display
4081 * for signal quality. */
4083 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
4084 (15 * RSSI_RANGE
+ 62 * degradation
)) /
4085 (RSSI_RANGE
* RSSI_RANGE
);
4089 else if (sig_qual
< 1)
4096 * iwl4965_rx_handle - Main entry function for receiving responses from uCode
4098 * Uses the priv->rx_handlers callback function array to invoke
4099 * the appropriate handlers, including command responses,
4100 * frame-received notifications, and other notifications.
4102 static void iwl4965_rx_handle(struct iwl_priv
*priv
)
4104 struct iwl4965_rx_mem_buffer
*rxb
;
4105 struct iwl4965_rx_packet
*pkt
;
4106 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
4109 unsigned long flags
;
4113 /* uCode's read index (stored in shared DRAM) indicates the last Rx
4114 * buffer that the driver may process (last buffer filled by ucode). */
4115 r
= iwl4965_hw_get_rx_read(priv
);
4118 /* Rx interrupt, but nothing sent from uCode */
4120 IWL_DEBUG(IWL_DL_RX
| IWL_DL_ISR
, "r = %d, i = %d\n", r
, i
);
4122 if (iwl4965_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
4126 rxb
= rxq
->queue
[i
];
4128 /* If an RXB doesn't have a Rx queue slot associated with it,
4129 * then a bug has been introduced in the queue refilling
4130 * routines -- catch it here */
4131 BUG_ON(rxb
== NULL
);
4133 rxq
->queue
[i
] = NULL
;
4135 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
4136 priv
->hw_setting
.rx_buf_size
,
4137 PCI_DMA_FROMDEVICE
);
4138 pkt
= (struct iwl4965_rx_packet
*)rxb
->skb
->data
;
4140 /* Reclaim a command buffer only if this packet is a response
4141 * to a (driver-originated) command.
4142 * If the packet (e.g. Rx frame) originated from uCode,
4143 * there is no command buffer to reclaim.
4144 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
4145 * but apparently a few don't get set; catch them here. */
4146 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
4147 (pkt
->hdr
.cmd
!= REPLY_RX_PHY_CMD
) &&
4148 (pkt
->hdr
.cmd
!= REPLY_RX
) &&
4149 (pkt
->hdr
.cmd
!= REPLY_COMPRESSED_BA
) &&
4150 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
4151 (pkt
->hdr
.cmd
!= REPLY_TX
);
4153 /* Based on type of command response or notification,
4154 * handle those that need handling via function in
4155 * rx_handlers table. See iwl4965_setup_rx_handlers() */
4156 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
4157 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4158 "r = %d, i = %d, %s, 0x%02x\n", r
, i
,
4159 get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
4160 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
4162 /* No handling needed */
4163 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4164 "r %d i %d No handler needed for %s, 0x%02x\n",
4165 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
4170 /* Invoke any callbacks, transfer the skb to caller, and
4171 * fire off the (possibly) blocking iwl_send_cmd()
4172 * as we reclaim the driver command queue */
4173 if (rxb
&& rxb
->skb
)
4174 iwl4965_tx_cmd_complete(priv
, rxb
);
4176 IWL_WARNING("Claim null rxb?\n");
4179 /* For now we just don't re-use anything. We can tweak this
4180 * later to try and re-use notification packets and SKBs that
4181 * fail to Rx correctly */
4182 if (rxb
->skb
!= NULL
) {
4183 priv
->alloc_rxb_skb
--;
4184 dev_kfree_skb_any(rxb
->skb
);
4188 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
4189 priv
->hw_setting
.rx_buf_size
,
4190 PCI_DMA_FROMDEVICE
);
4191 spin_lock_irqsave(&rxq
->lock
, flags
);
4192 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
4193 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4194 i
= (i
+ 1) & RX_QUEUE_MASK
;
4195 /* If there are a lot of unused frames,
4196 * restock the Rx queue so ucode wont assert. */
4201 __iwl4965_rx_replenish(priv
);
4207 /* Backtrack one entry */
4209 iwl4965_rx_queue_restock(priv
);
4213 * iwl4965_tx_queue_update_write_ptr - Send new write index to hardware
4215 static int iwl4965_tx_queue_update_write_ptr(struct iwl_priv
*priv
,
4216 struct iwl4965_tx_queue
*txq
)
4220 int txq_id
= txq
->q
.id
;
4222 if (txq
->need_update
== 0)
4225 /* if we're trying to save power */
4226 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
4227 /* wake up nic if it's powered down ...
4228 * uCode will wake up, and interrupt us again, so next
4229 * time we'll skip this part. */
4230 reg
= iwl_read32(priv
, CSR_UCODE_DRV_GP1
);
4232 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
4233 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg
);
4234 iwl_set_bit(priv
, CSR_GP_CNTRL
,
4235 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
4239 /* restore this queue's parameters in nic hardware. */
4240 rc
= iwl_grab_nic_access(priv
);
4243 iwl_write_direct32(priv
, HBUS_TARG_WRPTR
,
4244 txq
->q
.write_ptr
| (txq_id
<< 8));
4245 iwl_release_nic_access(priv
);
4247 /* else not in power-save mode, uCode will never sleep when we're
4248 * trying to tx (during RFKILL, we're not trying to tx). */
4250 iwl_write32(priv
, HBUS_TARG_WRPTR
,
4251 txq
->q
.write_ptr
| (txq_id
<< 8));
4253 txq
->need_update
= 0;
4258 #ifdef CONFIG_IWLWIFI_DEBUG
4259 static void iwl4965_print_rx_config_cmd(struct iwl4965_rxon_cmd
*rxon
)
4261 DECLARE_MAC_BUF(mac
);
4263 IWL_DEBUG_RADIO("RX CONFIG:\n");
4264 iwl_print_hex_dump(IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
4265 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
4266 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
4267 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
4268 le32_to_cpu(rxon
->filter_flags
));
4269 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
4270 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
4271 rxon
->ofdm_basic_rates
);
4272 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
4273 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
4274 print_mac(mac
, rxon
->node_addr
));
4275 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
4276 print_mac(mac
, rxon
->bssid_addr
));
4277 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
4281 static void iwl4965_enable_interrupts(struct iwl_priv
*priv
)
4283 IWL_DEBUG_ISR("Enabling interrupts\n");
4284 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
4285 iwl_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
4288 /* call this function to flush any scheduled tasklet */
4289 static inline void iwl_synchronize_irq(struct iwl_priv
*priv
)
4291 /* wait to make sure we flush pedding tasklet*/
4292 synchronize_irq(priv
->pci_dev
->irq
);
4293 tasklet_kill(&priv
->irq_tasklet
);
4296 static inline void iwl4965_disable_interrupts(struct iwl_priv
*priv
)
4298 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
4300 /* disable interrupts from uCode/NIC to host */
4301 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
4303 /* acknowledge/clear/reset any interrupts still pending
4304 * from uCode or flow handler (Rx/Tx DMA) */
4305 iwl_write32(priv
, CSR_INT
, 0xffffffff);
4306 iwl_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
4307 IWL_DEBUG_ISR("Disabled interrupts\n");
4310 static const char *desc_lookup(int i
)
4318 return "BAD_CHECKSUM";
4320 return "NMI_INTERRUPT";
4324 return "FATAL_ERROR";
4330 #define ERROR_START_OFFSET (1 * sizeof(u32))
4331 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
4333 static void iwl4965_dump_nic_error_log(struct iwl_priv
*priv
)
4336 u32 desc
, time
, count
, base
, data1
;
4337 u32 blink1
, blink2
, ilink1
, ilink2
;
4340 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
4342 if (!iwl4965_hw_valid_rtc_data_addr(base
)) {
4343 IWL_ERROR("Not valid error log pointer 0x%08X\n", base
);
4347 rc
= iwl_grab_nic_access(priv
);
4349 IWL_WARNING("Can not read from adapter at this time.\n");
4353 count
= iwl_read_targ_mem(priv
, base
);
4355 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
4356 IWL_ERROR("Start IWL Error Log Dump:\n");
4357 IWL_ERROR("Status: 0x%08lX, count: %d\n", priv
->status
, count
);
4360 desc
= iwl_read_targ_mem(priv
, base
+ 1 * sizeof(u32
));
4361 blink1
= iwl_read_targ_mem(priv
, base
+ 3 * sizeof(u32
));
4362 blink2
= iwl_read_targ_mem(priv
, base
+ 4 * sizeof(u32
));
4363 ilink1
= iwl_read_targ_mem(priv
, base
+ 5 * sizeof(u32
));
4364 ilink2
= iwl_read_targ_mem(priv
, base
+ 6 * sizeof(u32
));
4365 data1
= iwl_read_targ_mem(priv
, base
+ 7 * sizeof(u32
));
4366 data2
= iwl_read_targ_mem(priv
, base
+ 8 * sizeof(u32
));
4367 line
= iwl_read_targ_mem(priv
, base
+ 9 * sizeof(u32
));
4368 time
= iwl_read_targ_mem(priv
, base
+ 11 * sizeof(u32
));
4370 IWL_ERROR("Desc Time "
4371 "data1 data2 line\n");
4372 IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n",
4373 desc_lookup(desc
), desc
, time
, data1
, data2
, line
);
4374 IWL_ERROR("blink1 blink2 ilink1 ilink2\n");
4375 IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1
, blink2
,
4378 iwl_release_nic_access(priv
);
4381 #define EVENT_START_OFFSET (4 * sizeof(u32))
4384 * iwl4965_print_event_log - Dump error event log to syslog
4386 * NOTE: Must be called with iwl_grab_nic_access() already obtained!
4388 static void iwl4965_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
4389 u32 num_events
, u32 mode
)
4392 u32 base
; /* SRAM byte address of event log header */
4393 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
4394 u32 ptr
; /* SRAM byte address of log data */
4395 u32 ev
, time
, data
; /* event log data */
4397 if (num_events
== 0)
4400 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4403 event_size
= 2 * sizeof(u32
);
4405 event_size
= 3 * sizeof(u32
);
4407 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
4409 /* "time" is actually "data" for mode 0 (no timestamp).
4410 * place event id # at far right for easier visual parsing. */
4411 for (i
= 0; i
< num_events
; i
++) {
4412 ev
= iwl_read_targ_mem(priv
, ptr
);
4414 time
= iwl_read_targ_mem(priv
, ptr
);
4417 IWL_ERROR("0x%08x\t%04u\n", time
, ev
); /* data, ev */
4419 data
= iwl_read_targ_mem(priv
, ptr
);
4421 IWL_ERROR("%010u\t0x%08x\t%04u\n", time
, data
, ev
);
4426 static void iwl4965_dump_nic_event_log(struct iwl_priv
*priv
)
4429 u32 base
; /* SRAM byte address of event log header */
4430 u32 capacity
; /* event log capacity in # entries */
4431 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
4432 u32 num_wraps
; /* # times uCode wrapped to top of log */
4433 u32 next_entry
; /* index of next entry to be written by uCode */
4434 u32 size
; /* # entries that we'll print */
4436 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4437 if (!iwl4965_hw_valid_rtc_data_addr(base
)) {
4438 IWL_ERROR("Invalid event log pointer 0x%08X\n", base
);
4442 rc
= iwl_grab_nic_access(priv
);
4444 IWL_WARNING("Can not read from adapter at this time.\n");
4448 /* event log header */
4449 capacity
= iwl_read_targ_mem(priv
, base
);
4450 mode
= iwl_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
4451 num_wraps
= iwl_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
4452 next_entry
= iwl_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
4454 size
= num_wraps
? capacity
: next_entry
;
4456 /* bail out if nothing in log */
4458 IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
4459 iwl_release_nic_access(priv
);
4463 IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
4466 /* if uCode has wrapped back to top of log, start at the oldest entry,
4467 * i.e the next one that uCode would fill. */
4469 iwl4965_print_event_log(priv
, next_entry
,
4470 capacity
- next_entry
, mode
);
4472 /* (then/else) start at top of log */
4473 iwl4965_print_event_log(priv
, 0, next_entry
, mode
);
4475 iwl_release_nic_access(priv
);
4479 * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
4481 static void iwl4965_irq_handle_error(struct iwl_priv
*priv
)
4483 /* Set the FW error flag -- cleared on iwl4965_down */
4484 set_bit(STATUS_FW_ERROR
, &priv
->status
);
4486 /* Cancel currently queued command. */
4487 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
4489 #ifdef CONFIG_IWLWIFI_DEBUG
4490 if (iwl_debug_level
& IWL_DL_FW_ERRORS
) {
4491 iwl4965_dump_nic_error_log(priv
);
4492 iwl4965_dump_nic_event_log(priv
);
4493 iwl4965_print_rx_config_cmd(&priv
->staging_rxon
);
4497 wake_up_interruptible(&priv
->wait_command_queue
);
4499 /* Keep the restart process from trying to send host
4500 * commands by clearing the INIT status bit */
4501 clear_bit(STATUS_READY
, &priv
->status
);
4503 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
4504 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_FW_ERRORS
,
4505 "Restarting adapter due to uCode error.\n");
4507 if (iwl4965_is_associated(priv
)) {
4508 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
4509 sizeof(priv
->recovery_rxon
));
4510 priv
->error_recovering
= 1;
4512 queue_work(priv
->workqueue
, &priv
->restart
);
4516 static void iwl4965_error_recovery(struct iwl_priv
*priv
)
4518 unsigned long flags
;
4520 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
4521 sizeof(priv
->staging_rxon
));
4522 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4523 iwl4965_commit_rxon(priv
);
4525 iwl4965_rxon_add_station(priv
, priv
->bssid
, 1);
4527 spin_lock_irqsave(&priv
->lock
, flags
);
4528 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
4529 priv
->error_recovering
= 0;
4530 spin_unlock_irqrestore(&priv
->lock
, flags
);
4533 static void iwl4965_irq_tasklet(struct iwl_priv
*priv
)
4535 u32 inta
, handled
= 0;
4537 unsigned long flags
;
4538 #ifdef CONFIG_IWLWIFI_DEBUG
4542 spin_lock_irqsave(&priv
->lock
, flags
);
4544 /* Ack/clear/reset pending uCode interrupts.
4545 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
4546 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
4547 inta
= iwl_read32(priv
, CSR_INT
);
4548 iwl_write32(priv
, CSR_INT
, inta
);
4550 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
4551 * Any new interrupts that happen after this, either while we're
4552 * in this tasklet, or later, will show up in next ISR/tasklet. */
4553 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
4554 iwl_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
4556 #ifdef CONFIG_IWLWIFI_DEBUG
4557 if (iwl_debug_level
& IWL_DL_ISR
) {
4558 /* just for debug */
4559 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
4560 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4561 inta
, inta_mask
, inta_fh
);
4565 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
4566 * atomic, make sure that inta covers all the interrupts that
4567 * we've discovered, even if FH interrupt came in just after
4568 * reading CSR_INT. */
4569 if (inta_fh
& CSR49_FH_INT_RX_MASK
)
4570 inta
|= CSR_INT_BIT_FH_RX
;
4571 if (inta_fh
& CSR49_FH_INT_TX_MASK
)
4572 inta
|= CSR_INT_BIT_FH_TX
;
4574 /* Now service all interrupt bits discovered above. */
4575 if (inta
& CSR_INT_BIT_HW_ERR
) {
4576 IWL_ERROR("Microcode HW error detected. Restarting.\n");
4578 /* Tell the device to stop sending interrupts */
4579 iwl4965_disable_interrupts(priv
);
4581 iwl4965_irq_handle_error(priv
);
4583 handled
|= CSR_INT_BIT_HW_ERR
;
4585 spin_unlock_irqrestore(&priv
->lock
, flags
);
4590 #ifdef CONFIG_IWLWIFI_DEBUG
4591 if (iwl_debug_level
& (IWL_DL_ISR
)) {
4592 /* NIC fires this, but we don't use it, redundant with WAKEUP */
4593 if (inta
& CSR_INT_BIT_SCD
)
4594 IWL_DEBUG_ISR("Scheduler finished to transmit "
4595 "the frame/frames.\n");
4597 /* Alive notification via Rx interrupt will do the real work */
4598 if (inta
& CSR_INT_BIT_ALIVE
)
4599 IWL_DEBUG_ISR("Alive interrupt\n");
4602 /* Safely ignore these bits for debug checks below */
4603 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
4605 /* HW RF KILL switch toggled */
4606 if (inta
& CSR_INT_BIT_RF_KILL
) {
4608 if (!(iwl_read32(priv
, CSR_GP_CNTRL
) &
4609 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
4612 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
| IWL_DL_ISR
,
4613 "RF_KILL bit toggled to %s.\n",
4614 hw_rf_kill
? "disable radio":"enable radio");
4616 /* Queue restart only if RF_KILL switch was set to "kill"
4617 * when we loaded driver, and is now set to "enable".
4618 * After we're Alive, RF_KILL gets handled by
4619 * iwl4965_rx_card_state_notif() */
4620 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
4621 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
4622 queue_work(priv
->workqueue
, &priv
->restart
);
4625 handled
|= CSR_INT_BIT_RF_KILL
;
4628 /* Chip got too hot and stopped itself */
4629 if (inta
& CSR_INT_BIT_CT_KILL
) {
4630 IWL_ERROR("Microcode CT kill error detected.\n");
4631 handled
|= CSR_INT_BIT_CT_KILL
;
4634 /* Error detected by uCode */
4635 if (inta
& CSR_INT_BIT_SW_ERR
) {
4636 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
4638 iwl4965_irq_handle_error(priv
);
4639 handled
|= CSR_INT_BIT_SW_ERR
;
4642 /* uCode wakes up after power-down sleep */
4643 if (inta
& CSR_INT_BIT_WAKEUP
) {
4644 IWL_DEBUG_ISR("Wakeup interrupt\n");
4645 iwl4965_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
4646 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[0]);
4647 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[1]);
4648 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[2]);
4649 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[3]);
4650 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[4]);
4651 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[5]);
4653 handled
|= CSR_INT_BIT_WAKEUP
;
4656 /* All uCode command responses, including Tx command responses,
4657 * Rx "responses" (frame-received notification), and other
4658 * notifications from uCode come through here*/
4659 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
4660 iwl4965_rx_handle(priv
);
4661 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
4664 if (inta
& CSR_INT_BIT_FH_TX
) {
4665 IWL_DEBUG_ISR("Tx interrupt\n");
4666 handled
|= CSR_INT_BIT_FH_TX
;
4669 if (inta
& ~handled
)
4670 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
4672 if (inta
& ~CSR_INI_SET_MASK
) {
4673 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
4674 inta
& ~CSR_INI_SET_MASK
);
4675 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
4678 /* Re-enable all interrupts */
4679 /* only Re-enable if diabled by irq */
4680 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
4681 iwl4965_enable_interrupts(priv
);
4683 #ifdef CONFIG_IWLWIFI_DEBUG
4684 if (iwl_debug_level
& (IWL_DL_ISR
)) {
4685 inta
= iwl_read32(priv
, CSR_INT
);
4686 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
);
4687 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
4688 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
4689 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
4692 spin_unlock_irqrestore(&priv
->lock
, flags
);
4695 static irqreturn_t
iwl4965_isr(int irq
, void *data
)
4697 struct iwl_priv
*priv
= data
;
4698 u32 inta
, inta_mask
;
4703 spin_lock(&priv
->lock
);
4705 /* Disable (but don't clear!) interrupts here to avoid
4706 * back-to-back ISRs and sporadic interrupts from our NIC.
4707 * If we have something to service, the tasklet will re-enable ints.
4708 * If we *don't* have something, we'll re-enable before leaving here. */
4709 inta_mask
= iwl_read32(priv
, CSR_INT_MASK
); /* just for debug */
4710 iwl_write32(priv
, CSR_INT_MASK
, 0x00000000);
4712 /* Discover which interrupts are active/pending */
4713 inta
= iwl_read32(priv
, CSR_INT
);
4714 inta_fh
= iwl_read32(priv
, CSR_FH_INT_STATUS
);
4716 /* Ignore interrupt if there's nothing in NIC to service.
4717 * This may be due to IRQ shared with another device,
4718 * or due to sporadic interrupts thrown from our NIC. */
4719 if (!inta
&& !inta_fh
) {
4720 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
4724 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
4725 /* Hardware disappeared. It might have already raised
4727 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
4731 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4732 inta
, inta_mask
, inta_fh
);
4734 inta
&= ~CSR_INT_BIT_SCD
;
4736 /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
4737 if (likely(inta
|| inta_fh
))
4738 tasklet_schedule(&priv
->irq_tasklet
);
4741 spin_unlock(&priv
->lock
);
4745 /* re-enable interrupts here since we don't have anything to service. */
4746 /* only Re-enable if diabled by irq */
4747 if (test_bit(STATUS_INT_ENABLED
, &priv
->status
))
4748 iwl4965_enable_interrupts(priv
);
4749 spin_unlock(&priv
->lock
);
4753 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
4754 * sending probe req. This should be set long enough to hear probe responses
4755 * from more than one AP. */
4756 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
4757 #define IWL_ACTIVE_DWELL_TIME_52 (10)
4759 /* For faster active scanning, scan will move to the next channel if fewer than
4760 * PLCP_QUIET_THRESH packets are heard on this channel within
4761 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
4762 * time if it's a quiet channel (nothing responded to our probe, and there's
4763 * no other traffic).
4764 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
4765 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
4766 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
4768 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
4769 * Must be set longer than active dwell time.
4770 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
4771 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
4772 #define IWL_PASSIVE_DWELL_TIME_52 (10)
4773 #define IWL_PASSIVE_DWELL_BASE (100)
4774 #define IWL_CHANNEL_TUNE_TIME 5
4776 static inline u16
iwl4965_get_active_dwell_time(struct iwl_priv
*priv
,
4777 enum ieee80211_band band
)
4779 if (band
== IEEE80211_BAND_5GHZ
)
4780 return IWL_ACTIVE_DWELL_TIME_52
;
4782 return IWL_ACTIVE_DWELL_TIME_24
;
4785 static u16
iwl4965_get_passive_dwell_time(struct iwl_priv
*priv
,
4786 enum ieee80211_band band
)
4788 u16 active
= iwl4965_get_active_dwell_time(priv
, band
);
4789 u16 passive
= (band
!= IEEE80211_BAND_5GHZ
) ?
4790 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
4791 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
4793 if (iwl4965_is_associated(priv
)) {
4794 /* If we're associated, we clamp the maximum passive
4795 * dwell time to be 98% of the beacon interval (minus
4796 * 2 * channel tune time) */
4797 passive
= priv
->beacon_int
;
4798 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
4799 passive
= IWL_PASSIVE_DWELL_BASE
;
4800 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
4803 if (passive
<= active
)
4804 passive
= active
+ 1;
4809 static int iwl4965_get_channels_for_scan(struct iwl_priv
*priv
,
4810 enum ieee80211_band band
,
4811 u8 is_active
, u8 direct_mask
,
4812 struct iwl4965_scan_channel
*scan_ch
)
4814 const struct ieee80211_channel
*channels
= NULL
;
4815 const struct ieee80211_supported_band
*sband
;
4816 const struct iwl_channel_info
*ch_info
;
4817 u16 passive_dwell
= 0;
4818 u16 active_dwell
= 0;
4821 sband
= iwl4965_get_hw_mode(priv
, band
);
4825 channels
= sband
->channels
;
4827 active_dwell
= iwl4965_get_active_dwell_time(priv
, band
);
4828 passive_dwell
= iwl4965_get_passive_dwell_time(priv
, band
);
4830 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
4831 if (ieee80211_frequency_to_channel(channels
[i
].center_freq
) ==
4832 le16_to_cpu(priv
->active_rxon
.channel
)) {
4833 if (iwl4965_is_associated(priv
)) {
4835 ("Skipping current channel %d\n",
4836 le16_to_cpu(priv
->active_rxon
.channel
));
4839 } else if (priv
->only_active_channel
)
4842 scan_ch
->channel
= ieee80211_frequency_to_channel(channels
[i
].center_freq
);
4844 ch_info
= iwl_get_channel_info(priv
, band
,
4846 if (!is_channel_valid(ch_info
)) {
4847 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
4852 if (!is_active
|| is_channel_passive(ch_info
) ||
4853 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
))
4854 scan_ch
->type
= 0; /* passive */
4856 scan_ch
->type
= 1; /* active */
4858 if (scan_ch
->type
& 1)
4859 scan_ch
->type
|= (direct_mask
<< 1);
4861 if (is_channel_narrow(ch_info
))
4862 scan_ch
->type
|= (1 << 7);
4864 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
4865 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
4867 /* Set txpower levels to defaults */
4868 scan_ch
->tpc
.dsp_atten
= 110;
4869 /* scan_pwr_info->tpc.dsp_atten; */
4871 /*scan_pwr_info->tpc.tx_gain; */
4872 if (band
== IEEE80211_BAND_5GHZ
)
4873 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
4875 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
4876 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
4878 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
4882 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
4884 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
4885 (scan_ch
->type
& 1) ?
4886 active_dwell
: passive_dwell
);
4892 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
4896 static void iwl4965_init_hw_rates(struct iwl_priv
*priv
,
4897 struct ieee80211_rate
*rates
)
4901 for (i
= 0; i
< IWL_RATE_COUNT
; i
++) {
4902 rates
[i
].bitrate
= iwl4965_rates
[i
].ieee
* 5;
4903 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
4904 rates
[i
].hw_value_short
= i
;
4906 if ((i
> IWL_LAST_OFDM_RATE
) || (i
< IWL_FIRST_OFDM_RATE
)) {
4908 * If CCK != 1M then set short preamble rate flag.
4911 (iwl4965_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
4912 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
4918 * iwl4965_init_geos - Initialize mac80211's geo/channel info based from eeprom
4920 int iwl4965_init_geos(struct iwl_priv
*priv
)
4922 struct iwl_channel_info
*ch
;
4923 struct ieee80211_supported_band
*sband
;
4924 struct ieee80211_channel
*channels
;
4925 struct ieee80211_channel
*geo_ch
;
4926 struct ieee80211_rate
*rates
;
4929 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
4930 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
4931 IWL_DEBUG_INFO("Geography modes already initialized.\n");
4932 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
4936 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
4937 priv
->channel_count
, GFP_KERNEL
);
4941 rates
= kzalloc((sizeof(struct ieee80211_rate
) * (IWL_RATE_COUNT
+ 1)),
4948 /* 5.2GHz channels start after the 2.4GHz channels */
4949 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
4950 sband
->channels
= &channels
[ARRAY_SIZE(iwl_eeprom_band_1
)];
4952 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
4953 sband
->n_bitrates
= IWL_RATE_COUNT
- IWL_FIRST_OFDM_RATE
;
4955 iwl4965_init_ht_hw_capab(priv
, &sband
->ht_info
, IEEE80211_BAND_5GHZ
);
4957 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
4958 sband
->channels
= channels
;
4960 sband
->bitrates
= rates
;
4961 sband
->n_bitrates
= IWL_RATE_COUNT
;
4963 iwl4965_init_ht_hw_capab(priv
, &sband
->ht_info
, IEEE80211_BAND_2GHZ
);
4965 priv
->ieee_channels
= channels
;
4966 priv
->ieee_rates
= rates
;
4968 iwl4965_init_hw_rates(priv
, rates
);
4970 for (i
= 0; i
< priv
->channel_count
; i
++) {
4971 ch
= &priv
->channel_info
[i
];
4973 /* FIXME: might be removed if scan is OK */
4974 if (!is_channel_valid(ch
))
4977 if (is_channel_a_band(ch
))
4978 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
4980 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
4982 geo_ch
= &sband
->channels
[sband
->n_channels
++];
4984 geo_ch
->center_freq
= ieee80211_channel_to_frequency(ch
->channel
);
4985 geo_ch
->max_power
= ch
->max_power_avg
;
4986 geo_ch
->max_antenna_gain
= 0xff;
4987 geo_ch
->hw_value
= ch
->channel
;
4989 if (is_channel_valid(ch
)) {
4990 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
4991 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
4993 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
4994 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
4996 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
4997 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
4999 if (ch
->max_power_avg
> priv
->max_channel_txpower_limit
)
5000 priv
->max_channel_txpower_limit
=
5003 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
5006 /* Save flags for reg domain usage */
5007 geo_ch
->orig_flags
= geo_ch
->flags
;
5009 IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n",
5010 ch
->channel
, geo_ch
->center_freq
,
5011 is_channel_a_band(ch
) ? "5.2" : "2.4",
5012 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
5013 "restricted" : "valid",
5017 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) &&
5018 priv
->cfg
->sku
& IWL_SKU_A
) {
5019 printk(KERN_INFO DRV_NAME
5020 ": Incorrectly detected BG card as ABG. Please send "
5021 "your PCI ID 0x%04X:0x%04X to maintainer.\n",
5022 priv
->pci_dev
->device
, priv
->pci_dev
->subsystem_device
);
5023 priv
->cfg
->sku
&= ~IWL_SKU_A
;
5026 printk(KERN_INFO DRV_NAME
5027 ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
5028 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
5029 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
5031 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
5032 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
5033 &priv
->bands
[IEEE80211_BAND_2GHZ
];
5034 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
5035 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
5036 &priv
->bands
[IEEE80211_BAND_5GHZ
];
5038 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5044 * iwl4965_free_geos - undo allocations in iwl4965_init_geos
5046 void iwl4965_free_geos(struct iwl_priv
*priv
)
5048 kfree(priv
->ieee_channels
);
5049 kfree(priv
->ieee_rates
);
5050 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5053 /******************************************************************************
5055 * uCode download functions
5057 ******************************************************************************/
5059 static void iwl4965_dealloc_ucode_pci(struct iwl_priv
*priv
)
5061 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5062 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5063 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5064 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5065 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5066 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5070 * iwl4965_verify_inst_full - verify runtime uCode image in card vs. host,
5071 * looking at all data.
5073 static int iwl4965_verify_inst_full(struct iwl_priv
*priv
, __le32
*image
,
5081 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5083 rc
= iwl_grab_nic_access(priv
);
5087 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, RTC_INST_LOWER_BOUND
);
5090 for (; len
> 0; len
-= sizeof(u32
), image
++) {
5091 /* read data comes through single port, auto-incr addr */
5092 /* NOTE: Use the debugless read so we don't flood kernel log
5093 * if IWL_DL_IO is set */
5094 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5095 if (val
!= le32_to_cpu(*image
)) {
5096 IWL_ERROR("uCode INST section is invalid at "
5097 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5098 save_len
- len
, val
, le32_to_cpu(*image
));
5106 iwl_release_nic_access(priv
);
5110 ("ucode image in INSTRUCTION memory is good\n");
5117 * iwl4965_verify_inst_sparse - verify runtime uCode image in card vs. host,
5118 * using sample data 100 bytes apart. If these sample points are good,
5119 * it's a pretty good bet that everything between them is good, too.
5121 static int iwl4965_verify_inst_sparse(struct iwl_priv
*priv
, __le32
*image
, u32 len
)
5128 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5130 rc
= iwl_grab_nic_access(priv
);
5134 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
5135 /* read data comes through single port, auto-incr addr */
5136 /* NOTE: Use the debugless read so we don't flood kernel log
5137 * if IWL_DL_IO is set */
5138 iwl_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
5139 i
+ RTC_INST_LOWER_BOUND
);
5140 val
= _iwl_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5141 if (val
!= le32_to_cpu(*image
)) {
5142 #if 0 /* Enable this if you want to see details */
5143 IWL_ERROR("uCode INST section is invalid at "
5144 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5154 iwl_release_nic_access(priv
);
5161 * iwl4965_verify_ucode - determine which instruction image is in SRAM,
5162 * and verify its contents
5164 static int iwl4965_verify_ucode(struct iwl_priv
*priv
)
5171 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5172 len
= priv
->ucode_boot
.len
;
5173 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5175 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
5179 /* Try initialize */
5180 image
= (__le32
*)priv
->ucode_init
.v_addr
;
5181 len
= priv
->ucode_init
.len
;
5182 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5184 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
5188 /* Try runtime/protocol */
5189 image
= (__le32
*)priv
->ucode_code
.v_addr
;
5190 len
= priv
->ucode_code
.len
;
5191 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5193 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
5197 IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
5199 /* Since nothing seems to match, show first several data entries in
5200 * instruction SRAM, so maybe visual inspection will give a clue.
5201 * Selection of bootstrap image (vs. other images) is arbitrary. */
5202 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5203 len
= priv
->ucode_boot
.len
;
5204 rc
= iwl4965_verify_inst_full(priv
, image
, len
);
5210 /* check contents of special bootstrap uCode SRAM */
5211 static int iwl4965_verify_bsm(struct iwl_priv
*priv
)
5213 __le32
*image
= priv
->ucode_boot
.v_addr
;
5214 u32 len
= priv
->ucode_boot
.len
;
5218 IWL_DEBUG_INFO("Begin verify bsm\n");
5220 /* verify BSM SRAM contents */
5221 val
= iwl_read_prph(priv
, BSM_WR_DWCOUNT_REG
);
5222 for (reg
= BSM_SRAM_LOWER_BOUND
;
5223 reg
< BSM_SRAM_LOWER_BOUND
+ len
;
5224 reg
+= sizeof(u32
), image
++) {
5225 val
= iwl_read_prph(priv
, reg
);
5226 if (val
!= le32_to_cpu(*image
)) {
5227 IWL_ERROR("BSM uCode verification failed at "
5228 "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
5229 BSM_SRAM_LOWER_BOUND
,
5230 reg
- BSM_SRAM_LOWER_BOUND
, len
,
5231 val
, le32_to_cpu(*image
));
5236 IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
5242 * iwl4965_load_bsm - Load bootstrap instructions
5246 * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
5247 * in special SRAM that does not power down during RFKILL. When powering back
5248 * up after power-saving sleeps (or during initial uCode load), the BSM loads
5249 * the bootstrap program into the on-board processor, and starts it.
5251 * The bootstrap program loads (via DMA) instructions and data for a new
5252 * program from host DRAM locations indicated by the host driver in the
5253 * BSM_DRAM_* registers. Once the new program is loaded, it starts
5256 * When initializing the NIC, the host driver points the BSM to the
5257 * "initialize" uCode image. This uCode sets up some internal data, then
5258 * notifies host via "initialize alive" that it is complete.
5260 * The host then replaces the BSM_DRAM_* pointer values to point to the
5261 * normal runtime uCode instructions and a backup uCode data cache buffer
5262 * (filled initially with starting data values for the on-board processor),
5263 * then triggers the "initialize" uCode to load and launch the runtime uCode,
5264 * which begins normal operation.
5266 * When doing a power-save shutdown, runtime uCode saves data SRAM into
5267 * the backup data cache in DRAM before SRAM is powered down.
5269 * When powering back up, the BSM loads the bootstrap program. This reloads
5270 * the runtime uCode instructions and the backup data cache into SRAM,
5271 * and re-launches the runtime uCode from where it left off.
5273 static int iwl4965_load_bsm(struct iwl_priv
*priv
)
5275 __le32
*image
= priv
->ucode_boot
.v_addr
;
5276 u32 len
= priv
->ucode_boot
.len
;
5286 IWL_DEBUG_INFO("Begin load bsm\n");
5288 /* make sure bootstrap program is no larger than BSM's SRAM size */
5289 if (len
> IWL_MAX_BSM_SIZE
)
5292 /* Tell bootstrap uCode where to find the "Initialize" uCode
5293 * in host DRAM ... host DRAM physical address bits 35:4 for 4965.
5294 * NOTE: iwl4965_initialize_alive_start() will replace these values,
5295 * after the "initialize" uCode has run, to point to
5296 * runtime/protocol instructions and backup data cache. */
5297 pinst
= priv
->ucode_init
.p_addr
>> 4;
5298 pdata
= priv
->ucode_init_data
.p_addr
>> 4;
5299 inst_len
= priv
->ucode_init
.len
;
5300 data_len
= priv
->ucode_init_data
.len
;
5302 rc
= iwl_grab_nic_access(priv
);
5306 iwl_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5307 iwl_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5308 iwl_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
, inst_len
);
5309 iwl_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
, data_len
);
5311 /* Fill BSM memory with bootstrap instructions */
5312 for (reg_offset
= BSM_SRAM_LOWER_BOUND
;
5313 reg_offset
< BSM_SRAM_LOWER_BOUND
+ len
;
5314 reg_offset
+= sizeof(u32
), image
++)
5315 _iwl_write_prph(priv
, reg_offset
,
5316 le32_to_cpu(*image
));
5318 rc
= iwl4965_verify_bsm(priv
);
5320 iwl_release_nic_access(priv
);
5324 /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
5325 iwl_write_prph(priv
, BSM_WR_MEM_SRC_REG
, 0x0);
5326 iwl_write_prph(priv
, BSM_WR_MEM_DST_REG
,
5327 RTC_INST_LOWER_BOUND
);
5328 iwl_write_prph(priv
, BSM_WR_DWCOUNT_REG
, len
/ sizeof(u32
));
5330 /* Load bootstrap code into instruction SRAM now,
5331 * to prepare to load "initialize" uCode */
5332 iwl_write_prph(priv
, BSM_WR_CTRL_REG
,
5333 BSM_WR_CTRL_REG_BIT_START
);
5335 /* Wait for load of bootstrap uCode to finish */
5336 for (i
= 0; i
< 100; i
++) {
5337 done
= iwl_read_prph(priv
, BSM_WR_CTRL_REG
);
5338 if (!(done
& BSM_WR_CTRL_REG_BIT_START
))
5343 IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i
);
5345 IWL_ERROR("BSM write did not complete!\n");
5349 /* Enable future boot loads whenever power management unit triggers it
5350 * (e.g. when powering back up after power-save shutdown) */
5351 iwl_write_prph(priv
, BSM_WR_CTRL_REG
,
5352 BSM_WR_CTRL_REG_BIT_START_EN
);
5354 iwl_release_nic_access(priv
);
5359 static void iwl4965_nic_start(struct iwl_priv
*priv
)
5361 /* Remove all resets to allow NIC to operate */
5362 iwl_write32(priv
, CSR_RESET
, 0);
5367 * iwl4965_read_ucode - Read uCode images from disk file.
5369 * Copy into buffers for card to fetch via bus-mastering
5371 static int iwl4965_read_ucode(struct iwl_priv
*priv
)
5373 struct iwl4965_ucode
*ucode
;
5375 const struct firmware
*ucode_raw
;
5376 const char *name
= priv
->cfg
->fw_name
;
5379 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
5381 /* Ask kernel firmware_class module to get the boot firmware off disk.
5382 * request_firmware() is synchronous, file is in memory on return. */
5383 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
5385 IWL_ERROR("%s firmware file req failed: Reason %d\n",
5390 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
5391 name
, ucode_raw
->size
);
5393 /* Make sure that we got at least our header! */
5394 if (ucode_raw
->size
< sizeof(*ucode
)) {
5395 IWL_ERROR("File size way too small!\n");
5400 /* Data from ucode file: header followed by uCode images */
5401 ucode
= (void *)ucode_raw
->data
;
5403 ver
= le32_to_cpu(ucode
->ver
);
5404 inst_size
= le32_to_cpu(ucode
->inst_size
);
5405 data_size
= le32_to_cpu(ucode
->data_size
);
5406 init_size
= le32_to_cpu(ucode
->init_size
);
5407 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
5408 boot_size
= le32_to_cpu(ucode
->boot_size
);
5410 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
5411 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
5413 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
5415 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
5417 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
5419 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
5422 /* Verify size of file vs. image size info in file's header */
5423 if (ucode_raw
->size
< sizeof(*ucode
) +
5424 inst_size
+ data_size
+ init_size
+
5425 init_data_size
+ boot_size
) {
5427 IWL_DEBUG_INFO("uCode file size %d too small\n",
5428 (int)ucode_raw
->size
);
5433 /* Verify that uCode images will fit in card's SRAM */
5434 if (inst_size
> IWL_MAX_INST_SIZE
) {
5435 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
5441 if (data_size
> IWL_MAX_DATA_SIZE
) {
5442 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
5447 if (init_size
> IWL_MAX_INST_SIZE
) {
5449 ("uCode init instr len %d too large to fit in\n",
5454 if (init_data_size
> IWL_MAX_DATA_SIZE
) {
5456 ("uCode init data len %d too large to fit in\n",
5461 if (boot_size
> IWL_MAX_BSM_SIZE
) {
5463 ("uCode boot instr len %d too large to fit in\n",
5469 /* Allocate ucode buffers for card's bus-master loading ... */
5471 /* Runtime instructions and 2 copies of data:
5472 * 1) unmodified from disk
5473 * 2) backup cache for save/restore during power-downs */
5474 priv
->ucode_code
.len
= inst_size
;
5475 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5477 priv
->ucode_data
.len
= data_size
;
5478 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5480 priv
->ucode_data_backup
.len
= data_size
;
5481 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5483 /* Initialization instructions and data */
5484 if (init_size
&& init_data_size
) {
5485 priv
->ucode_init
.len
= init_size
;
5486 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5488 priv
->ucode_init_data
.len
= init_data_size
;
5489 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5491 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
5495 /* Bootstrap (instructions only, no data) */
5497 priv
->ucode_boot
.len
= boot_size
;
5498 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5500 if (!priv
->ucode_boot
.v_addr
)
5504 /* Copy images into buffers for card's bus-master reads ... */
5506 /* Runtime instructions (first block of data in file) */
5507 src
= &ucode
->data
[0];
5508 len
= priv
->ucode_code
.len
;
5509 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
5510 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
5511 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
5512 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
5514 /* Runtime data (2nd block)
5515 * NOTE: Copy into backup buffer will be done in iwl4965_up() */
5516 src
= &ucode
->data
[inst_size
];
5517 len
= priv
->ucode_data
.len
;
5518 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
5519 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
5520 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
5522 /* Initialization instructions (3rd block) */
5524 src
= &ucode
->data
[inst_size
+ data_size
];
5525 len
= priv
->ucode_init
.len
;
5526 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
5528 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
5531 /* Initialization data (4th block) */
5532 if (init_data_size
) {
5533 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
5534 len
= priv
->ucode_init_data
.len
;
5535 IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
5537 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
5540 /* Bootstrap instructions (5th block) */
5541 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
5542 len
= priv
->ucode_boot
.len
;
5543 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len
);
5544 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
5546 /* We have our copies now, allow OS release its copies */
5547 release_firmware(ucode_raw
);
5551 IWL_ERROR("failed to allocate pci memory\n");
5553 iwl4965_dealloc_ucode_pci(priv
);
5556 release_firmware(ucode_raw
);
5564 * iwl4965_set_ucode_ptrs - Set uCode address location
5566 * Tell initialization uCode where to find runtime uCode.
5568 * BSM registers initially contain pointers to initialization uCode.
5569 * We need to replace them to load runtime uCode inst and data,
5570 * and to save runtime data when powering down.
5572 static int iwl4965_set_ucode_ptrs(struct iwl_priv
*priv
)
5577 unsigned long flags
;
5579 /* bits 35:4 for 4965 */
5580 pinst
= priv
->ucode_code
.p_addr
>> 4;
5581 pdata
= priv
->ucode_data_backup
.p_addr
>> 4;
5583 spin_lock_irqsave(&priv
->lock
, flags
);
5584 rc
= iwl_grab_nic_access(priv
);
5586 spin_unlock_irqrestore(&priv
->lock
, flags
);
5590 /* Tell bootstrap uCode where to find image to load */
5591 iwl_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5592 iwl_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5593 iwl_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
,
5594 priv
->ucode_data
.len
);
5596 /* Inst bytecount must be last to set up, bit 31 signals uCode
5597 * that all new ptr/size info is in place */
5598 iwl_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
,
5599 priv
->ucode_code
.len
| BSM_DRAM_INST_LOAD
);
5601 iwl_release_nic_access(priv
);
5603 spin_unlock_irqrestore(&priv
->lock
, flags
);
5605 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
5611 * iwl4965_init_alive_start - Called after REPLY_ALIVE notification received
5613 * Called after REPLY_ALIVE notification received from "initialize" uCode.
5615 * The 4965 "initialize" ALIVE reply contains calibration data for:
5616 * Voltage, temperature, and MIMO tx gain correction, now stored in priv
5617 * (3945 does not contain this data).
5619 * Tell "initialize" uCode to go ahead and load the runtime uCode.
5621 static void iwl4965_init_alive_start(struct iwl_priv
*priv
)
5623 /* Check alive response for "valid" sign from uCode */
5624 if (priv
->card_alive_init
.is_valid
!= UCODE_VALID_OK
) {
5625 /* We had an error bringing up the hardware, so take it
5626 * all the way back down so we can try again */
5627 IWL_DEBUG_INFO("Initialize Alive failed.\n");
5631 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
5632 * This is a paranoid check, because we would not have gotten the
5633 * "initialize" alive if code weren't properly loaded. */
5634 if (iwl4965_verify_ucode(priv
)) {
5635 /* Runtime instruction load was bad;
5636 * take it all the way back down so we can try again */
5637 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
5641 /* Calculate temperature */
5642 priv
->temperature
= iwl4965_get_temperature(priv
);
5644 /* Send pointers to protocol/runtime uCode image ... init code will
5645 * load and launch runtime uCode, which will send us another "Alive"
5647 IWL_DEBUG_INFO("Initialization Alive received.\n");
5648 if (iwl4965_set_ucode_ptrs(priv
)) {
5649 /* Runtime instruction load won't happen;
5650 * take it all the way back down so we can try again */
5651 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
5657 queue_work(priv
->workqueue
, &priv
->restart
);
5662 * iwl4965_alive_start - called after REPLY_ALIVE notification received
5663 * from protocol/runtime uCode (initialization uCode's
5664 * Alive gets handled by iwl4965_init_alive_start()).
5666 static void iwl4965_alive_start(struct iwl_priv
*priv
)
5670 IWL_DEBUG_INFO("Runtime Alive received.\n");
5672 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
5673 /* We had an error bringing up the hardware, so take it
5674 * all the way back down so we can try again */
5675 IWL_DEBUG_INFO("Alive failed.\n");
5679 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
5680 * This is a paranoid check, because we would not have gotten the
5681 * "runtime" alive if code weren't properly loaded. */
5682 if (iwl4965_verify_ucode(priv
)) {
5683 /* Runtime instruction load was bad;
5684 * take it all the way back down so we can try again */
5685 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
5689 iwlcore_clear_stations_table(priv
);
5691 rc
= iwl4965_alive_notify(priv
);
5693 IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
5698 /* After the ALIVE response, we can send host commands to 4965 uCode */
5699 set_bit(STATUS_ALIVE
, &priv
->status
);
5701 /* Clear out the uCode error bit if it is set */
5702 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
5704 if (iwl4965_is_rfkill(priv
))
5707 ieee80211_start_queues(priv
->hw
);
5709 priv
->active_rate
= priv
->rates_mask
;
5710 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
5712 iwl4965_send_power_mode(priv
, IWL_POWER_LEVEL(priv
->power_mode
));
5714 if (iwl4965_is_associated(priv
)) {
5715 struct iwl4965_rxon_cmd
*active_rxon
=
5716 (struct iwl4965_rxon_cmd
*)(&priv
->active_rxon
);
5718 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
5719 sizeof(priv
->staging_rxon
));
5720 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
5722 /* Initialize our rx_config data */
5723 iwl4965_connection_init_rx_config(priv
);
5724 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
5727 /* Configure Bluetooth device coexistence support */
5728 iwl4965_send_bt_config(priv
);
5730 /* Configure the adapter for unassociated operation */
5731 iwl4965_commit_rxon(priv
);
5733 /* At this point, the NIC is initialized and operational */
5734 priv
->notif_missed_beacons
= 0;
5736 iwl4965_rf_kill_ct_config(priv
);
5738 IWL_DEBUG_INFO("ALIVE processing complete.\n");
5739 set_bit(STATUS_READY
, &priv
->status
);
5740 wake_up_interruptible(&priv
->wait_command_queue
);
5742 iwl_leds_register(priv
);
5744 if (priv
->error_recovering
)
5745 iwl4965_error_recovery(priv
);
5747 iwlcore_low_level_notify(priv
, IWLCORE_START_EVT
);
5751 queue_work(priv
->workqueue
, &priv
->restart
);
5754 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
);
5756 static void __iwl4965_down(struct iwl_priv
*priv
)
5758 unsigned long flags
;
5759 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5760 struct ieee80211_conf
*conf
= NULL
;
5762 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
5764 conf
= ieee80211_get_hw_conf(priv
->hw
);
5767 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5769 iwl_leds_unregister(priv
);
5771 iwlcore_low_level_notify(priv
, IWLCORE_STOP_EVT
);
5773 iwlcore_clear_stations_table(priv
);
5775 /* Unblock any waiting calls */
5776 wake_up_interruptible_all(&priv
->wait_command_queue
);
5778 /* Wipe out the EXIT_PENDING status bit if we are not actually
5779 * exiting the module */
5781 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5783 /* stop and reset the on-board processor */
5784 iwl_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
5786 /* tell the device to stop sending interrupts */
5787 spin_lock_irqsave(&priv
->lock
, flags
);
5788 iwl4965_disable_interrupts(priv
);
5789 spin_unlock_irqrestore(&priv
->lock
, flags
);
5790 iwl_synchronize_irq(priv
);
5792 if (priv
->mac80211_registered
)
5793 ieee80211_stop_queues(priv
->hw
);
5795 /* If we have not previously called iwl4965_init() then
5796 * clear all bits but the RF Kill and SUSPEND bits and return */
5797 if (!iwl4965_is_init(priv
)) {
5798 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5800 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5802 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5803 STATUS_GEO_CONFIGURED
|
5804 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5809 /* ...otherwise clear out all the status bits but the RF Kill and
5810 * SUSPEND bits and continue taking the NIC down. */
5811 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
5813 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
5815 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
5816 STATUS_GEO_CONFIGURED
|
5817 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
5819 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
5822 spin_lock_irqsave(&priv
->lock
, flags
);
5823 iwl_clear_bit(priv
, CSR_GP_CNTRL
,
5824 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
5825 spin_unlock_irqrestore(&priv
->lock
, flags
);
5827 iwl4965_hw_txq_ctx_stop(priv
);
5828 iwl4965_hw_rxq_stop(priv
);
5830 spin_lock_irqsave(&priv
->lock
, flags
);
5831 if (!iwl_grab_nic_access(priv
)) {
5832 iwl_write_prph(priv
, APMG_CLK_DIS_REG
,
5833 APMG_CLK_VAL_DMA_CLK_RQT
);
5834 iwl_release_nic_access(priv
);
5836 spin_unlock_irqrestore(&priv
->lock
, flags
);
5840 iwl4965_hw_nic_stop_master(priv
);
5841 iwl_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
5842 iwl4965_hw_nic_reset(priv
);
5845 memset(&priv
->card_alive
, 0, sizeof(struct iwl4965_alive_resp
));
5847 if (priv
->ibss_beacon
)
5848 dev_kfree_skb(priv
->ibss_beacon
);
5849 priv
->ibss_beacon
= NULL
;
5851 /* clear out any free frames */
5852 iwl4965_clear_free_frames(priv
);
5855 static void iwl4965_down(struct iwl_priv
*priv
)
5857 mutex_lock(&priv
->mutex
);
5858 __iwl4965_down(priv
);
5859 mutex_unlock(&priv
->mutex
);
5861 iwl4965_cancel_deferred_work(priv
);
5864 #define MAX_HW_RESTARTS 5
5866 static int __iwl4965_up(struct iwl_priv
*priv
)
5870 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
5871 IWL_WARNING("Exit pending; will not bring the NIC up\n");
5875 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
5876 IWL_WARNING("Radio disabled by SW RF kill (module "
5878 iwl_rfkill_set_hw_state(priv
);
5882 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
5883 IWL_ERROR("ucode not available for device bringup\n");
5887 /* If platform's RF_KILL switch is NOT set to KILL */
5888 if (iwl_read32(priv
, CSR_GP_CNTRL
) &
5889 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
5890 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5892 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
5893 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
5894 iwl_rfkill_set_hw_state(priv
);
5895 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
5900 iwl_rfkill_set_hw_state(priv
);
5901 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
5903 rc
= iwl4965_hw_nic_init(priv
);
5905 IWL_ERROR("Unable to int nic\n");
5909 /* make sure rfkill handshake bits are cleared */
5910 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5911 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
5912 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
5914 /* clear (again), then enable host interrupts */
5915 iwl_write32(priv
, CSR_INT
, 0xFFFFFFFF);
5916 iwl4965_enable_interrupts(priv
);
5918 /* really make sure rfkill handshake bits are cleared */
5919 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5920 iwl_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
5922 /* Copy original ucode data image from disk into backup cache.
5923 * This will be used to initialize the on-board processor's
5924 * data SRAM for a clean start when the runtime program first loads. */
5925 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
5926 priv
->ucode_data
.len
);
5928 /* We return success when we resume from suspend and rf_kill is on. */
5929 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
5932 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
5934 iwlcore_clear_stations_table(priv
);
5936 /* load bootstrap state machine,
5937 * load bootstrap program into processor's memory,
5938 * prepare to load the "initialize" uCode */
5939 rc
= iwl4965_load_bsm(priv
);
5942 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc
);
5946 /* start card; "initialize" will load runtime ucode */
5947 iwl4965_nic_start(priv
);
5949 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
5954 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
5955 __iwl4965_down(priv
);
5957 /* tried to restart and config the device for as long as our
5958 * patience could withstand */
5959 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
5964 /*****************************************************************************
5966 * Workqueue callbacks
5968 *****************************************************************************/
5970 static void iwl4965_bg_init_alive_start(struct work_struct
*data
)
5972 struct iwl_priv
*priv
=
5973 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
5975 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5978 mutex_lock(&priv
->mutex
);
5979 iwl4965_init_alive_start(priv
);
5980 mutex_unlock(&priv
->mutex
);
5983 static void iwl4965_bg_alive_start(struct work_struct
*data
)
5985 struct iwl_priv
*priv
=
5986 container_of(data
, struct iwl_priv
, alive_start
.work
);
5988 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
5991 mutex_lock(&priv
->mutex
);
5992 iwl4965_alive_start(priv
);
5993 mutex_unlock(&priv
->mutex
);
5996 static void iwl4965_bg_rf_kill(struct work_struct
*work
)
5998 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, rf_kill
);
6000 wake_up_interruptible(&priv
->wait_command_queue
);
6002 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6005 mutex_lock(&priv
->mutex
);
6007 if (!iwl4965_is_rfkill(priv
)) {
6008 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
,
6009 "HW and/or SW RF Kill no longer active, restarting "
6011 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6012 queue_work(priv
->workqueue
, &priv
->restart
);
6014 /* make sure mac80211 stop sending Tx frame */
6015 if (priv
->mac80211_registered
)
6016 ieee80211_stop_queues(priv
->hw
);
6018 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
6019 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
6020 "disabled by SW switch\n");
6022 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
6023 "Kill switch must be turned off for "
6024 "wireless networking to work.\n");
6026 iwl_rfkill_set_hw_state(priv
);
6028 mutex_unlock(&priv
->mutex
);
6031 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
6033 static void iwl4965_bg_scan_check(struct work_struct
*data
)
6035 struct iwl_priv
*priv
=
6036 container_of(data
, struct iwl_priv
, scan_check
.work
);
6038 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6041 mutex_lock(&priv
->mutex
);
6042 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
6043 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6044 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
,
6045 "Scan completion watchdog resetting adapter (%dms)\n",
6046 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
6048 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6049 iwl4965_send_scan_abort(priv
);
6051 mutex_unlock(&priv
->mutex
);
6054 static void iwl4965_bg_request_scan(struct work_struct
*data
)
6056 struct iwl_priv
*priv
=
6057 container_of(data
, struct iwl_priv
, request_scan
);
6058 struct iwl_host_cmd cmd
= {
6059 .id
= REPLY_SCAN_CMD
,
6060 .len
= sizeof(struct iwl4965_scan_cmd
),
6061 .meta
.flags
= CMD_SIZE_HUGE
,
6063 struct iwl4965_scan_cmd
*scan
;
6064 struct ieee80211_conf
*conf
= NULL
;
6066 enum ieee80211_band band
;
6070 conf
= ieee80211_get_hw_conf(priv
->hw
);
6072 mutex_lock(&priv
->mutex
);
6074 if (!iwl4965_is_ready(priv
)) {
6075 IWL_WARNING("request scan called when driver not ready.\n");
6079 /* Make sure the scan wasn't cancelled before this queued work
6080 * was given the chance to run... */
6081 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
6084 /* This should never be called or scheduled if there is currently
6085 * a scan active in the hardware. */
6086 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
6087 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
6088 "Ignoring second request.\n");
6093 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
6094 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
6098 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6099 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
6103 if (iwl4965_is_rfkill(priv
)) {
6104 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
6108 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6109 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
6113 if (!priv
->scan_bands
) {
6114 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
6119 priv
->scan
= kmalloc(sizeof(struct iwl4965_scan_cmd
) +
6120 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
6127 memset(scan
, 0, sizeof(struct iwl4965_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
6129 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
6130 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
6132 if (iwl4965_is_associated(priv
)) {
6135 u32 suspend_time
= 100;
6136 u32 scan_suspend_time
= 100;
6137 unsigned long flags
;
6139 IWL_DEBUG_INFO("Scanning while associated...\n");
6141 spin_lock_irqsave(&priv
->lock
, flags
);
6142 interval
= priv
->beacon_int
;
6143 spin_unlock_irqrestore(&priv
->lock
, flags
);
6145 scan
->suspend_time
= 0;
6146 scan
->max_out_time
= cpu_to_le32(200 * 1024);
6148 interval
= suspend_time
;
6150 extra
= (suspend_time
/ interval
) << 22;
6151 scan_suspend_time
= (extra
|
6152 ((suspend_time
% interval
) * 1024));
6153 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
6154 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
6155 scan_suspend_time
, interval
);
6158 /* We should add the ability for user to lock to PASSIVE ONLY */
6159 if (priv
->one_direct_scan
) {
6161 ("Kicking off one direct scan for '%s'\n",
6162 iwl4965_escape_essid(priv
->direct_ssid
,
6163 priv
->direct_ssid_len
));
6164 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6165 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
6166 memcpy(scan
->direct_scan
[0].ssid
,
6167 priv
->direct_ssid
, priv
->direct_ssid_len
);
6169 } else if (!iwl4965_is_associated(priv
) && priv
->essid_len
) {
6170 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6171 scan
->direct_scan
[0].len
= priv
->essid_len
;
6172 memcpy(scan
->direct_scan
[0].ssid
, priv
->essid
, priv
->essid_len
);
6178 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
6179 scan
->tx_cmd
.sta_id
= priv
->hw_setting
.bcast_sta_id
;
6180 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
6183 switch (priv
->scan_bands
) {
6185 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
6186 scan
->tx_cmd
.rate_n_flags
=
6187 iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP
,
6188 RATE_MCS_ANT_B_MSK
|RATE_MCS_CCK_MSK
);
6190 scan
->good_CRC_th
= 0;
6191 band
= IEEE80211_BAND_2GHZ
;
6195 scan
->tx_cmd
.rate_n_flags
=
6196 iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP
,
6197 RATE_MCS_ANT_B_MSK
);
6198 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
6199 band
= IEEE80211_BAND_5GHZ
;
6203 IWL_WARNING("Invalid scan band count\n");
6207 /* We don't build a direct scan probe request; the uCode will do
6208 * that based on the direct_mask added to each channel entry */
6209 cmd_len
= iwl4965_fill_probe_req(priv
, band
,
6210 (struct ieee80211_mgmt
*)scan
->data
,
6211 IWL_MAX_SCAN_SIZE
- sizeof(*scan
), 0);
6213 scan
->tx_cmd
.len
= cpu_to_le16(cmd_len
);
6214 /* select Rx chains */
6216 /* Force use of chains B and C (0x6) for scan Rx.
6217 * Avoid A (0x1) because of its off-channel reception on A-band.
6218 * MIMO is not used here, but value is required to make uCode happy. */
6219 scan
->rx_chain
= RXON_RX_CHAIN_DRIVER_FORCE_MSK
|
6220 cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS
) |
6221 (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS
) |
6222 (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS
));
6224 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
)
6225 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
6229 ("Initiating direct scan for %s.\n",
6230 iwl4965_escape_essid(priv
->essid
, priv
->essid_len
));
6231 scan
->channel_count
=
6232 iwl4965_get_channels_for_scan(
6233 priv
, band
, 1, /* active */
6235 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6237 IWL_DEBUG_SCAN("Initiating indirect scan.\n");
6238 scan
->channel_count
=
6239 iwl4965_get_channels_for_scan(
6240 priv
, band
, 0, /* passive */
6242 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6245 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
6246 scan
->channel_count
* sizeof(struct iwl4965_scan_channel
);
6248 scan
->len
= cpu_to_le16(cmd
.len
);
6250 set_bit(STATUS_SCAN_HW
, &priv
->status
);
6251 ret
= iwl_send_cmd_sync(priv
, &cmd
);
6255 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
6256 IWL_SCAN_CHECK_WATCHDOG
);
6258 mutex_unlock(&priv
->mutex
);
6262 /* inform mac80211 scan aborted */
6263 queue_work(priv
->workqueue
, &priv
->scan_completed
);
6264 mutex_unlock(&priv
->mutex
);
6267 static void iwl4965_bg_up(struct work_struct
*data
)
6269 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, up
);
6271 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6274 mutex_lock(&priv
->mutex
);
6276 mutex_unlock(&priv
->mutex
);
6279 static void iwl4965_bg_restart(struct work_struct
*data
)
6281 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
6283 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6287 queue_work(priv
->workqueue
, &priv
->up
);
6290 static void iwl4965_bg_rx_replenish(struct work_struct
*data
)
6292 struct iwl_priv
*priv
=
6293 container_of(data
, struct iwl_priv
, rx_replenish
);
6295 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6298 mutex_lock(&priv
->mutex
);
6299 iwl4965_rx_replenish(priv
);
6300 mutex_unlock(&priv
->mutex
);
6303 #define IWL_DELAY_NEXT_SCAN (HZ*2)
6305 static void iwl4965_bg_post_associate(struct work_struct
*data
)
6307 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
,
6308 post_associate
.work
);
6309 struct ieee80211_conf
*conf
= NULL
;
6311 DECLARE_MAC_BUF(mac
);
6313 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6314 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
6318 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
6320 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
6323 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6326 mutex_lock(&priv
->mutex
);
6328 if (!priv
->vif
|| !priv
->is_open
) {
6329 mutex_unlock(&priv
->mutex
);
6332 iwl4965_scan_cancel_timeout(priv
, 200);
6334 conf
= ieee80211_get_hw_conf(priv
->hw
);
6336 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6337 iwl4965_commit_rxon(priv
);
6339 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
6340 iwl4965_setup_rxon_timing(priv
);
6341 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6342 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6344 IWL_WARNING("REPLY_RXON_TIMING failed - "
6345 "Attempting to continue.\n");
6347 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6349 #ifdef CONFIG_IWL4965_HT
6350 if (priv
->current_ht_config
.is_ht
)
6351 iwl4965_set_rxon_ht(priv
, &priv
->current_ht_config
);
6352 #endif /* CONFIG_IWL4965_HT*/
6353 iwl4965_set_rxon_chain(priv
);
6354 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6356 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
6357 priv
->assoc_id
, priv
->beacon_int
);
6359 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6360 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6362 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6364 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6365 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6366 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
6368 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6370 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6371 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6375 iwl4965_commit_rxon(priv
);
6377 switch (priv
->iw_mode
) {
6378 case IEEE80211_IF_TYPE_STA
:
6379 iwl4965_rate_scale_init(priv
->hw
, IWL_AP_ID
);
6382 case IEEE80211_IF_TYPE_IBSS
:
6384 /* clear out the station table */
6385 iwlcore_clear_stations_table(priv
);
6387 iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0);
6388 iwl4965_rxon_add_station(priv
, priv
->bssid
, 0);
6389 iwl4965_rate_scale_init(priv
->hw
, IWL_STA_ID
);
6390 iwl4965_send_beacon_cmd(priv
);
6395 IWL_ERROR("%s Should not be called in %d mode\n",
6396 __FUNCTION__
, priv
->iw_mode
);
6400 iwl4965_sequence_reset(priv
);
6402 #ifdef CONFIG_IWL4965_SENSITIVITY
6403 /* Enable Rx differential gain and sensitivity calibrations */
6404 iwl4965_chain_noise_reset(priv
);
6405 priv
->start_calib
= 1;
6406 #endif /* CONFIG_IWL4965_SENSITIVITY */
6408 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6409 priv
->assoc_station_added
= 1;
6411 iwl4965_activate_qos(priv
, 0);
6413 /* we have just associated, don't start scan too early */
6414 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
6415 mutex_unlock(&priv
->mutex
);
6418 static void iwl4965_bg_abort_scan(struct work_struct
*work
)
6420 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, abort_scan
);
6422 if (!iwl4965_is_ready(priv
))
6425 mutex_lock(&priv
->mutex
);
6427 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
6428 iwl4965_send_scan_abort(priv
);
6430 mutex_unlock(&priv
->mutex
);
6433 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
6435 static void iwl4965_bg_scan_completed(struct work_struct
*work
)
6437 struct iwl_priv
*priv
=
6438 container_of(work
, struct iwl_priv
, scan_completed
);
6440 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
, "SCAN complete scan\n");
6442 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6445 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
6446 iwl4965_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
6448 ieee80211_scan_completed(priv
->hw
);
6450 /* Since setting the TXPOWER may have been deferred while
6451 * performing the scan, fire one off */
6452 mutex_lock(&priv
->mutex
);
6453 iwl4965_hw_reg_send_txpower(priv
);
6454 mutex_unlock(&priv
->mutex
);
6457 /*****************************************************************************
6459 * mac80211 entry point functions
6461 *****************************************************************************/
6463 #define UCODE_READY_TIMEOUT (2 * HZ)
6465 static int iwl4965_mac_start(struct ieee80211_hw
*hw
)
6467 struct iwl_priv
*priv
= hw
->priv
;
6470 IWL_DEBUG_MAC80211("enter\n");
6472 if (pci_enable_device(priv
->pci_dev
)) {
6473 IWL_ERROR("Fail to pci_enable_device\n");
6476 pci_restore_state(priv
->pci_dev
);
6477 pci_enable_msi(priv
->pci_dev
);
6479 ret
= request_irq(priv
->pci_dev
->irq
, iwl4965_isr
, IRQF_SHARED
,
6482 IWL_ERROR("Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
6483 goto out_disable_msi
;
6486 /* we should be verifying the device is ready to be opened */
6487 mutex_lock(&priv
->mutex
);
6489 memset(&priv
->staging_rxon
, 0, sizeof(struct iwl4965_rxon_cmd
));
6490 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
6491 * ucode filename and max sizes are card-specific. */
6493 if (!priv
->ucode_code
.len
) {
6494 ret
= iwl4965_read_ucode(priv
);
6496 IWL_ERROR("Could not read microcode: %d\n", ret
);
6497 mutex_unlock(&priv
->mutex
);
6498 goto out_release_irq
;
6502 ret
= __iwl4965_up(priv
);
6504 mutex_unlock(&priv
->mutex
);
6507 goto out_release_irq
;
6509 IWL_DEBUG_INFO("Start UP work done.\n");
6511 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
6514 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
6515 * mac80211 will not be run successfully. */
6516 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
6517 test_bit(STATUS_READY
, &priv
->status
),
6518 UCODE_READY_TIMEOUT
);
6520 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6521 IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
6522 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
6524 goto out_release_irq
;
6529 IWL_DEBUG_MAC80211("leave\n");
6533 free_irq(priv
->pci_dev
->irq
, priv
);
6535 pci_disable_msi(priv
->pci_dev
);
6536 pci_disable_device(priv
->pci_dev
);
6538 IWL_DEBUG_MAC80211("leave - failed\n");
6542 static void iwl4965_mac_stop(struct ieee80211_hw
*hw
)
6544 struct iwl_priv
*priv
= hw
->priv
;
6546 IWL_DEBUG_MAC80211("enter\n");
6548 if (!priv
->is_open
) {
6549 IWL_DEBUG_MAC80211("leave - skip\n");
6555 if (iwl4965_is_ready_rf(priv
)) {
6556 /* stop mac, cancel any scan request and clear
6557 * RXON_FILTER_ASSOC_MSK BIT
6559 mutex_lock(&priv
->mutex
);
6560 iwl4965_scan_cancel_timeout(priv
, 100);
6561 cancel_delayed_work(&priv
->post_associate
);
6562 mutex_unlock(&priv
->mutex
);
6567 flush_workqueue(priv
->workqueue
);
6568 free_irq(priv
->pci_dev
->irq
, priv
);
6569 pci_disable_msi(priv
->pci_dev
);
6570 pci_save_state(priv
->pci_dev
);
6571 pci_disable_device(priv
->pci_dev
);
6573 IWL_DEBUG_MAC80211("leave\n");
6576 static int iwl4965_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
6577 struct ieee80211_tx_control
*ctl
)
6579 struct iwl_priv
*priv
= hw
->priv
;
6581 IWL_DEBUG_MAC80211("enter\n");
6583 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
6584 IWL_DEBUG_MAC80211("leave - monitor\n");
6588 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
6589 ctl
->tx_rate
->bitrate
);
6591 if (iwl4965_tx_skb(priv
, skb
, ctl
))
6592 dev_kfree_skb_any(skb
);
6594 IWL_DEBUG_MAC80211("leave\n");
6598 static int iwl4965_mac_add_interface(struct ieee80211_hw
*hw
,
6599 struct ieee80211_if_init_conf
*conf
)
6601 struct iwl_priv
*priv
= hw
->priv
;
6602 unsigned long flags
;
6603 DECLARE_MAC_BUF(mac
);
6605 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
6608 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
6612 spin_lock_irqsave(&priv
->lock
, flags
);
6613 priv
->vif
= conf
->vif
;
6615 spin_unlock_irqrestore(&priv
->lock
, flags
);
6617 mutex_lock(&priv
->mutex
);
6619 if (conf
->mac_addr
) {
6620 IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac
, conf
->mac_addr
));
6621 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
6624 if (iwl4965_is_ready(priv
))
6625 iwl4965_set_mode(priv
, conf
->type
);
6627 mutex_unlock(&priv
->mutex
);
6629 IWL_DEBUG_MAC80211("leave\n");
6634 * iwl4965_mac_config - mac80211 config callback
6636 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
6637 * be set inappropriately and the driver currently sets the hardware up to
6638 * use it whenever needed.
6640 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
6642 struct iwl_priv
*priv
= hw
->priv
;
6643 const struct iwl_channel_info
*ch_info
;
6644 unsigned long flags
;
6647 mutex_lock(&priv
->mutex
);
6648 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
6650 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
6652 if (!iwl4965_is_ready(priv
)) {
6653 IWL_DEBUG_MAC80211("leave - not ready\n");
6658 if (unlikely(!priv
->cfg
->mod_params
->disable_hw_scan
&&
6659 test_bit(STATUS_SCANNING
, &priv
->status
))) {
6660 IWL_DEBUG_MAC80211("leave - scanning\n");
6661 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
6662 mutex_unlock(&priv
->mutex
);
6666 spin_lock_irqsave(&priv
->lock
, flags
);
6668 ch_info
= iwl_get_channel_info(priv
, conf
->channel
->band
,
6669 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
6670 if (!is_channel_valid(ch_info
)) {
6671 IWL_DEBUG_MAC80211("leave - invalid channel\n");
6672 spin_unlock_irqrestore(&priv
->lock
, flags
);
6677 #ifdef CONFIG_IWL4965_HT
6678 /* if we are switching from ht to 2.4 clear flags
6679 * from any ht related info since 2.4 does not
6681 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != conf
->channel
->hw_value
)
6682 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
6683 && !(conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
)
6686 priv
->staging_rxon
.flags
= 0;
6687 #endif /* CONFIG_IWL4965_HT */
6689 iwlcore_set_rxon_channel(priv
, conf
->channel
->band
,
6690 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
6692 iwl4965_set_flags_for_phymode(priv
, conf
->channel
->band
);
6694 /* The list of supported rates and rate mask can be different
6695 * for each band; since the band may have changed, reset
6696 * the rate mask to what mac80211 lists */
6697 iwl4965_set_rate(priv
);
6699 spin_unlock_irqrestore(&priv
->lock
, flags
);
6701 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
6702 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
6703 iwl4965_hw_channel_switch(priv
, conf
->channel
);
6708 if (priv
->cfg
->ops
->lib
->radio_kill_sw
)
6709 priv
->cfg
->ops
->lib
->radio_kill_sw(priv
, !conf
->radio_enabled
);
6711 if (!conf
->radio_enabled
) {
6712 IWL_DEBUG_MAC80211("leave - radio disabled\n");
6716 if (iwl4965_is_rfkill(priv
)) {
6717 IWL_DEBUG_MAC80211("leave - RF kill\n");
6722 iwl4965_set_rate(priv
);
6724 if (memcmp(&priv
->active_rxon
,
6725 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
6726 iwl4965_commit_rxon(priv
);
6728 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
6730 IWL_DEBUG_MAC80211("leave\n");
6733 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
6734 mutex_unlock(&priv
->mutex
);
6738 static void iwl4965_config_ap(struct iwl_priv
*priv
)
6742 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6745 /* The following should be done only at AP bring up */
6746 if ((priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) == 0) {
6748 /* RXON - unassoc (to set timing command) */
6749 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6750 iwl4965_commit_rxon(priv
);
6753 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
6754 iwl4965_setup_rxon_timing(priv
);
6755 ret
= iwl_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6756 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6758 IWL_WARNING("REPLY_RXON_TIMING failed - "
6759 "Attempting to continue.\n");
6761 iwl4965_set_rxon_chain(priv
);
6763 /* FIXME: what should be the assoc_id for AP? */
6764 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6765 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6766 priv
->staging_rxon
.flags
|=
6767 RXON_FLG_SHORT_PREAMBLE_MSK
;
6769 priv
->staging_rxon
.flags
&=
6770 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6772 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6773 if (priv
->assoc_capability
&
6774 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6775 priv
->staging_rxon
.flags
|=
6776 RXON_FLG_SHORT_SLOT_MSK
;
6778 priv
->staging_rxon
.flags
&=
6779 ~RXON_FLG_SHORT_SLOT_MSK
;
6781 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6782 priv
->staging_rxon
.flags
&=
6783 ~RXON_FLG_SHORT_SLOT_MSK
;
6785 /* restore RXON assoc */
6786 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6787 iwl4965_commit_rxon(priv
);
6788 iwl4965_activate_qos(priv
, 1);
6789 iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0);
6791 iwl4965_send_beacon_cmd(priv
);
6793 /* FIXME - we need to add code here to detect a totally new
6794 * configuration, reset the AP, unassoc, rxon timing, assoc,
6795 * clear sta table, add BCAST sta... */
6798 static int iwl4965_mac_config_interface(struct ieee80211_hw
*hw
,
6799 struct ieee80211_vif
*vif
,
6800 struct ieee80211_if_conf
*conf
)
6802 struct iwl_priv
*priv
= hw
->priv
;
6803 DECLARE_MAC_BUF(mac
);
6804 unsigned long flags
;
6810 if (priv
->vif
!= vif
) {
6811 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
6812 mutex_unlock(&priv
->mutex
);
6816 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
6817 (!conf
->beacon
|| !conf
->ssid_len
)) {
6819 ("Leaving in AP mode because HostAPD is not ready.\n");
6823 if (!iwl4965_is_alive(priv
))
6826 mutex_lock(&priv
->mutex
);
6829 IWL_DEBUG_MAC80211("bssid: %s\n",
6830 print_mac(mac
, conf
->bssid
));
6833 * very dubious code was here; the probe filtering flag is never set:
6835 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
6836 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
6839 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6841 conf
->bssid
= priv
->mac_addr
;
6842 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
6843 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
6844 print_mac(mac
, conf
->bssid
));
6846 if (priv
->ibss_beacon
)
6847 dev_kfree_skb(priv
->ibss_beacon
);
6849 priv
->ibss_beacon
= conf
->beacon
;
6852 if (iwl4965_is_rfkill(priv
))
6855 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
6856 !is_multicast_ether_addr(conf
->bssid
)) {
6857 /* If there is currently a HW scan going on in the background
6858 * then we need to cancel it else the RXON below will fail. */
6859 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
6860 IWL_WARNING("Aborted scan still in progress "
6862 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
6863 mutex_unlock(&priv
->mutex
);
6866 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
6868 /* TODO: Audit driver for usage of these members and see
6869 * if mac80211 deprecates them (priv->bssid looks like it
6870 * shouldn't be there, but I haven't scanned the IBSS code
6871 * to verify) - jpk */
6872 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
6874 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
6875 iwl4965_config_ap(priv
);
6877 rc
= iwl4965_commit_rxon(priv
);
6878 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
6879 iwl4965_rxon_add_station(
6880 priv
, priv
->active_rxon
.bssid_addr
, 1);
6884 iwl4965_scan_cancel_timeout(priv
, 100);
6885 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6886 iwl4965_commit_rxon(priv
);
6890 spin_lock_irqsave(&priv
->lock
, flags
);
6891 if (!conf
->ssid_len
)
6892 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
6894 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
6896 priv
->essid_len
= conf
->ssid_len
;
6897 spin_unlock_irqrestore(&priv
->lock
, flags
);
6899 IWL_DEBUG_MAC80211("leave\n");
6900 mutex_unlock(&priv
->mutex
);
6905 static void iwl4965_configure_filter(struct ieee80211_hw
*hw
,
6906 unsigned int changed_flags
,
6907 unsigned int *total_flags
,
6908 int mc_count
, struct dev_addr_list
*mc_list
)
6912 * see also iwl4965_connection_init_rx_config
6917 static void iwl4965_mac_remove_interface(struct ieee80211_hw
*hw
,
6918 struct ieee80211_if_init_conf
*conf
)
6920 struct iwl_priv
*priv
= hw
->priv
;
6922 IWL_DEBUG_MAC80211("enter\n");
6924 mutex_lock(&priv
->mutex
);
6926 if (iwl4965_is_ready_rf(priv
)) {
6927 iwl4965_scan_cancel_timeout(priv
, 100);
6928 cancel_delayed_work(&priv
->post_associate
);
6929 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6930 iwl4965_commit_rxon(priv
);
6932 if (priv
->vif
== conf
->vif
) {
6934 memset(priv
->bssid
, 0, ETH_ALEN
);
6935 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
6936 priv
->essid_len
= 0;
6938 mutex_unlock(&priv
->mutex
);
6940 IWL_DEBUG_MAC80211("leave\n");
6944 static void iwl4965_bss_info_changed(struct ieee80211_hw
*hw
,
6945 struct ieee80211_vif
*vif
,
6946 struct ieee80211_bss_conf
*bss_conf
,
6949 struct iwl_priv
*priv
= hw
->priv
;
6951 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
6952 if (bss_conf
->use_short_preamble
)
6953 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6955 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6958 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
6959 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
6960 priv
->staging_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
6962 priv
->staging_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
6965 if (changes
& BSS_CHANGED_ASSOC
) {
6968 * do stuff instead of sniffing assoc resp
6972 if (iwl4965_is_associated(priv
))
6973 iwl4965_send_rxon_assoc(priv
);
6976 static int iwl4965_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
6979 unsigned long flags
;
6980 struct iwl_priv
*priv
= hw
->priv
;
6982 IWL_DEBUG_MAC80211("enter\n");
6984 mutex_lock(&priv
->mutex
);
6985 spin_lock_irqsave(&priv
->lock
, flags
);
6987 if (!iwl4965_is_ready_rf(priv
)) {
6989 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
6993 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
6995 IWL_ERROR("ERROR: APs don't scan\n");
6999 /* we don't schedule scan within next_scan_jiffies period */
7000 if (priv
->next_scan_jiffies
&&
7001 time_after(priv
->next_scan_jiffies
, jiffies
)) {
7005 /* if we just finished scan ask for delay */
7006 if (priv
->last_scan_jiffies
&& time_after(priv
->last_scan_jiffies
+
7007 IWL_DELAY_NEXT_SCAN
, jiffies
)) {
7012 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
7013 iwl4965_escape_essid(ssid
, len
), (int)len
);
7015 priv
->one_direct_scan
= 1;
7016 priv
->direct_ssid_len
= (u8
)
7017 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
7018 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
7020 priv
->one_direct_scan
= 0;
7022 rc
= iwl4965_scan_initiate(priv
);
7024 IWL_DEBUG_MAC80211("leave\n");
7027 spin_unlock_irqrestore(&priv
->lock
, flags
);
7028 mutex_unlock(&priv
->mutex
);
7033 static void iwl4965_mac_update_tkip_key(struct ieee80211_hw
*hw
,
7034 struct ieee80211_key_conf
*keyconf
, const u8
*addr
,
7035 u32 iv32
, u16
*phase1key
)
7037 struct iwl_priv
*priv
= hw
->priv
;
7038 u8 sta_id
= IWL_INVALID_STATION
;
7039 unsigned long flags
;
7040 __le16 key_flags
= 0;
7042 DECLARE_MAC_BUF(mac
);
7044 IWL_DEBUG_MAC80211("enter\n");
7046 sta_id
= iwl4965_hw_find_station(priv
, addr
);
7047 if (sta_id
== IWL_INVALID_STATION
) {
7048 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
7049 print_mac(mac
, addr
));
7053 iwl4965_scan_cancel_timeout(priv
, 100);
7055 key_flags
|= (STA_KEY_FLG_TKIP
| STA_KEY_FLG_MAP_KEY_MSK
);
7056 key_flags
|= cpu_to_le16(keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
7057 key_flags
&= ~STA_KEY_FLG_INVALID
;
7059 if (sta_id
== priv
->hw_setting
.bcast_sta_id
)
7060 key_flags
|= STA_KEY_MULTICAST_MSK
;
7062 spin_lock_irqsave(&priv
->sta_lock
, flags
);
7064 priv
->stations
[sta_id
].sta
.key
.key_offset
=
7065 (sta_id
% STA_KEY_MAX_NUM
);/* FIXME */
7066 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
7067 priv
->stations
[sta_id
].sta
.key
.tkip_rx_tsc_byte2
= (u8
) iv32
;
7069 for (i
= 0; i
< 5; i
++)
7070 priv
->stations
[sta_id
].sta
.key
.tkip_rx_ttak
[i
] =
7071 cpu_to_le16(phase1key
[i
]);
7073 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
7074 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
7076 iwl4965_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
7078 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
7080 IWL_DEBUG_MAC80211("leave\n");
7083 static int iwl4965_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
7084 const u8
*local_addr
, const u8
*addr
,
7085 struct ieee80211_key_conf
*key
)
7087 struct iwl_priv
*priv
= hw
->priv
;
7088 DECLARE_MAC_BUF(mac
);
7090 u8 sta_id
= IWL_INVALID_STATION
;
7093 IWL_DEBUG_MAC80211("enter\n");
7095 if (!priv
->cfg
->mod_params
->hw_crypto
) {
7096 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
7100 if (is_zero_ether_addr(addr
))
7101 /* only support pairwise keys */
7104 /* FIXME: need to differenciate between static and dynamic key
7105 * in the level of mac80211 */
7106 static_key
= !iwl4965_is_associated(priv
);
7109 sta_id
= iwl4965_hw_find_station(priv
, addr
);
7110 if (sta_id
== IWL_INVALID_STATION
) {
7111 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
7112 print_mac(mac
, addr
));
7117 iwl4965_scan_cancel_timeout(priv
, 100);
7122 ret
= iwl4965_set_static_key(priv
, key
);
7124 ret
= iwl4965_set_dynamic_key(priv
, key
, sta_id
);
7126 IWL_DEBUG_MAC80211("enable hwcrypto key\n");
7130 ret
= iwl4965_remove_static_key(priv
);
7132 ret
= iwl4965_clear_sta_key_info(priv
, sta_id
);
7134 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
7140 IWL_DEBUG_MAC80211("leave\n");
7145 static int iwl4965_mac_conf_tx(struct ieee80211_hw
*hw
, int queue
,
7146 const struct ieee80211_tx_queue_params
*params
)
7148 struct iwl_priv
*priv
= hw
->priv
;
7149 unsigned long flags
;
7152 IWL_DEBUG_MAC80211("enter\n");
7154 if (!iwl4965_is_ready_rf(priv
)) {
7155 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7159 if (queue
>= AC_NUM
) {
7160 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
7164 if (!priv
->qos_data
.qos_enable
) {
7165 priv
->qos_data
.qos_active
= 0;
7166 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
7169 q
= AC_NUM
- 1 - queue
;
7171 spin_lock_irqsave(&priv
->lock
, flags
);
7173 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
7174 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
7175 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
7176 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
7177 cpu_to_le16((params
->txop
* 32));
7179 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
7180 priv
->qos_data
.qos_active
= 1;
7182 spin_unlock_irqrestore(&priv
->lock
, flags
);
7184 mutex_lock(&priv
->mutex
);
7185 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
7186 iwl4965_activate_qos(priv
, 1);
7187 else if (priv
->assoc_id
&& iwl4965_is_associated(priv
))
7188 iwl4965_activate_qos(priv
, 0);
7190 mutex_unlock(&priv
->mutex
);
7192 IWL_DEBUG_MAC80211("leave\n");
7196 static int iwl4965_mac_get_tx_stats(struct ieee80211_hw
*hw
,
7197 struct ieee80211_tx_queue_stats
*stats
)
7199 struct iwl_priv
*priv
= hw
->priv
;
7201 struct iwl4965_tx_queue
*txq
;
7202 struct iwl4965_queue
*q
;
7203 unsigned long flags
;
7205 IWL_DEBUG_MAC80211("enter\n");
7207 if (!iwl4965_is_ready_rf(priv
)) {
7208 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7212 spin_lock_irqsave(&priv
->lock
, flags
);
7214 for (i
= 0; i
< AC_NUM
; i
++) {
7215 txq
= &priv
->txq
[i
];
7217 avail
= iwl4965_queue_space(q
);
7219 stats
->data
[i
].len
= q
->n_window
- avail
;
7220 stats
->data
[i
].limit
= q
->n_window
- q
->high_mark
;
7221 stats
->data
[i
].count
= q
->n_window
;
7224 spin_unlock_irqrestore(&priv
->lock
, flags
);
7226 IWL_DEBUG_MAC80211("leave\n");
7231 static int iwl4965_mac_get_stats(struct ieee80211_hw
*hw
,
7232 struct ieee80211_low_level_stats
*stats
)
7234 IWL_DEBUG_MAC80211("enter\n");
7235 IWL_DEBUG_MAC80211("leave\n");
7240 static u64
iwl4965_mac_get_tsf(struct ieee80211_hw
*hw
)
7242 IWL_DEBUG_MAC80211("enter\n");
7243 IWL_DEBUG_MAC80211("leave\n");
7248 static void iwl4965_mac_reset_tsf(struct ieee80211_hw
*hw
)
7250 struct iwl_priv
*priv
= hw
->priv
;
7251 unsigned long flags
;
7253 mutex_lock(&priv
->mutex
);
7254 IWL_DEBUG_MAC80211("enter\n");
7256 priv
->lq_mngr
.lq_ready
= 0;
7257 #ifdef CONFIG_IWL4965_HT
7258 spin_lock_irqsave(&priv
->lock
, flags
);
7259 memset(&priv
->current_ht_config
, 0, sizeof(struct iwl_ht_info
));
7260 spin_unlock_irqrestore(&priv
->lock
, flags
);
7261 #endif /* CONFIG_IWL4965_HT */
7263 iwlcore_reset_qos(priv
);
7265 cancel_delayed_work(&priv
->post_associate
);
7267 spin_lock_irqsave(&priv
->lock
, flags
);
7269 priv
->assoc_capability
= 0;
7270 priv
->call_post_assoc_from_beacon
= 0;
7271 priv
->assoc_station_added
= 0;
7273 /* new association get rid of ibss beacon skb */
7274 if (priv
->ibss_beacon
)
7275 dev_kfree_skb(priv
->ibss_beacon
);
7277 priv
->ibss_beacon
= NULL
;
7279 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
7280 priv
->timestamp1
= 0;
7281 priv
->timestamp0
= 0;
7282 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
7283 priv
->beacon_int
= 0;
7285 spin_unlock_irqrestore(&priv
->lock
, flags
);
7287 if (!iwl4965_is_ready_rf(priv
)) {
7288 IWL_DEBUG_MAC80211("leave - not ready\n");
7289 mutex_unlock(&priv
->mutex
);
7293 /* we are restarting association process
7294 * clear RXON_FILTER_ASSOC_MSK bit
7296 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
7297 iwl4965_scan_cancel_timeout(priv
, 100);
7298 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7299 iwl4965_commit_rxon(priv
);
7302 /* Per mac80211.h: This is only used in IBSS mode... */
7303 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7305 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
7306 mutex_unlock(&priv
->mutex
);
7310 priv
->only_active_channel
= 0;
7312 iwl4965_set_rate(priv
);
7314 mutex_unlock(&priv
->mutex
);
7316 IWL_DEBUG_MAC80211("leave\n");
7319 static int iwl4965_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
7320 struct ieee80211_tx_control
*control
)
7322 struct iwl_priv
*priv
= hw
->priv
;
7323 unsigned long flags
;
7325 mutex_lock(&priv
->mutex
);
7326 IWL_DEBUG_MAC80211("enter\n");
7328 if (!iwl4965_is_ready_rf(priv
)) {
7329 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7330 mutex_unlock(&priv
->mutex
);
7334 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7335 IWL_DEBUG_MAC80211("leave - not IBSS\n");
7336 mutex_unlock(&priv
->mutex
);
7340 spin_lock_irqsave(&priv
->lock
, flags
);
7342 if (priv
->ibss_beacon
)
7343 dev_kfree_skb(priv
->ibss_beacon
);
7345 priv
->ibss_beacon
= skb
;
7349 IWL_DEBUG_MAC80211("leave\n");
7350 spin_unlock_irqrestore(&priv
->lock
, flags
);
7352 iwlcore_reset_qos(priv
);
7354 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
7356 mutex_unlock(&priv
->mutex
);
7361 #ifdef CONFIG_IWL4965_HT
7363 static void iwl4965_ht_info_fill(struct ieee80211_conf
*conf
,
7364 struct iwl_priv
*priv
)
7366 struct iwl_ht_info
*iwl_conf
= &priv
->current_ht_config
;
7367 struct ieee80211_ht_info
*ht_conf
= &conf
->ht_conf
;
7368 struct ieee80211_ht_bss_info
*ht_bss_conf
= &conf
->ht_bss_conf
;
7370 IWL_DEBUG_MAC80211("enter: \n");
7372 if (!(conf
->flags
& IEEE80211_CONF_SUPPORT_HT_MODE
)) {
7373 iwl_conf
->is_ht
= 0;
7377 iwl_conf
->is_ht
= 1;
7378 priv
->ps_mode
= (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
7380 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_20
)
7381 iwl_conf
->sgf
|= 0x1;
7382 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_40
)
7383 iwl_conf
->sgf
|= 0x2;
7385 iwl_conf
->is_green_field
= !!(ht_conf
->cap
& IEEE80211_HT_CAP_GRN_FLD
);
7386 iwl_conf
->max_amsdu_size
=
7387 !!(ht_conf
->cap
& IEEE80211_HT_CAP_MAX_AMSDU
);
7389 iwl_conf
->supported_chan_width
=
7390 !!(ht_conf
->cap
& IEEE80211_HT_CAP_SUP_WIDTH
);
7391 iwl_conf
->extension_chan_offset
=
7392 ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_SEC_OFFSET
;
7393 /* If no above or below channel supplied disable FAT channel */
7394 if (iwl_conf
->extension_chan_offset
!= IWL_EXT_CHANNEL_OFFSET_ABOVE
&&
7395 iwl_conf
->extension_chan_offset
!= IWL_EXT_CHANNEL_OFFSET_BELOW
)
7396 iwl_conf
->supported_chan_width
= 0;
7398 iwl_conf
->tx_mimo_ps_mode
=
7399 (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
7400 memcpy(iwl_conf
->supp_mcs_set
, ht_conf
->supp_mcs_set
, 16);
7402 iwl_conf
->control_channel
= ht_bss_conf
->primary_channel
;
7403 iwl_conf
->tx_chan_width
=
7404 !!(ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_WIDTH
);
7405 iwl_conf
->ht_protection
=
7406 ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_HT_PROTECTION
;
7407 iwl_conf
->non_GF_STA_present
=
7408 !!(ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_NON_GF_STA_PRSNT
);
7410 IWL_DEBUG_MAC80211("control channel %d\n",
7411 iwl_conf
->control_channel
);
7412 IWL_DEBUG_MAC80211("leave\n");
7415 static int iwl4965_mac_conf_ht(struct ieee80211_hw
*hw
,
7416 struct ieee80211_conf
*conf
)
7418 struct iwl_priv
*priv
= hw
->priv
;
7420 IWL_DEBUG_MAC80211("enter: \n");
7422 iwl4965_ht_info_fill(conf
, priv
);
7423 iwl4965_set_rxon_chain(priv
);
7425 if (priv
&& priv
->assoc_id
&&
7426 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)) {
7427 unsigned long flags
;
7429 spin_lock_irqsave(&priv
->lock
, flags
);
7430 if (priv
->beacon_int
)
7431 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
7433 priv
->call_post_assoc_from_beacon
= 1;
7434 spin_unlock_irqrestore(&priv
->lock
, flags
);
7437 IWL_DEBUG_MAC80211("leave:\n");
7441 #endif /*CONFIG_IWL4965_HT*/
7443 /*****************************************************************************
7447 *****************************************************************************/
7449 #ifdef CONFIG_IWLWIFI_DEBUG
7452 * The following adds a new attribute to the sysfs representation
7453 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
7454 * used for controlling the debug level.
7456 * See the level definitions in iwl for details.
7459 static ssize_t
show_debug_level(struct device_driver
*d
, char *buf
)
7461 return sprintf(buf
, "0x%08X\n", iwl_debug_level
);
7463 static ssize_t
store_debug_level(struct device_driver
*d
,
7464 const char *buf
, size_t count
)
7466 char *p
= (char *)buf
;
7469 val
= simple_strtoul(p
, &p
, 0);
7471 printk(KERN_INFO DRV_NAME
7472 ": %s is not in hex or decimal form.\n", buf
);
7474 iwl_debug_level
= val
;
7476 return strnlen(buf
, count
);
7479 static DRIVER_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
7480 show_debug_level
, store_debug_level
);
7482 #endif /* CONFIG_IWLWIFI_DEBUG */
7485 static ssize_t
show_temperature(struct device
*d
,
7486 struct device_attribute
*attr
, char *buf
)
7488 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7490 if (!iwl4965_is_alive(priv
))
7493 return sprintf(buf
, "%d\n", iwl4965_hw_get_temperature(priv
));
7496 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
7498 static ssize_t
show_rs_window(struct device
*d
,
7499 struct device_attribute
*attr
,
7502 struct iwl_priv
*priv
= d
->driver_data
;
7503 return iwl4965_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
7505 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
7507 static ssize_t
show_tx_power(struct device
*d
,
7508 struct device_attribute
*attr
, char *buf
)
7510 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7511 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
7514 static ssize_t
store_tx_power(struct device
*d
,
7515 struct device_attribute
*attr
,
7516 const char *buf
, size_t count
)
7518 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7519 char *p
= (char *)buf
;
7522 val
= simple_strtoul(p
, &p
, 10);
7524 printk(KERN_INFO DRV_NAME
7525 ": %s is not in decimal form.\n", buf
);
7527 iwl4965_hw_reg_set_txpower(priv
, val
);
7532 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
7534 static ssize_t
show_flags(struct device
*d
,
7535 struct device_attribute
*attr
, char *buf
)
7537 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7539 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
7542 static ssize_t
store_flags(struct device
*d
,
7543 struct device_attribute
*attr
,
7544 const char *buf
, size_t count
)
7546 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7547 u32 flags
= simple_strtoul(buf
, NULL
, 0);
7549 mutex_lock(&priv
->mutex
);
7550 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
7551 /* Cancel any currently running scans... */
7552 if (iwl4965_scan_cancel_timeout(priv
, 100))
7553 IWL_WARNING("Could not cancel scan.\n");
7555 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
7557 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
7558 iwl4965_commit_rxon(priv
);
7561 mutex_unlock(&priv
->mutex
);
7566 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
7568 static ssize_t
show_filter_flags(struct device
*d
,
7569 struct device_attribute
*attr
, char *buf
)
7571 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7573 return sprintf(buf
, "0x%04X\n",
7574 le32_to_cpu(priv
->active_rxon
.filter_flags
));
7577 static ssize_t
store_filter_flags(struct device
*d
,
7578 struct device_attribute
*attr
,
7579 const char *buf
, size_t count
)
7581 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7582 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
7584 mutex_lock(&priv
->mutex
);
7585 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
7586 /* Cancel any currently running scans... */
7587 if (iwl4965_scan_cancel_timeout(priv
, 100))
7588 IWL_WARNING("Could not cancel scan.\n");
7590 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
7591 "0x%04X\n", filter_flags
);
7592 priv
->staging_rxon
.filter_flags
=
7593 cpu_to_le32(filter_flags
);
7594 iwl4965_commit_rxon(priv
);
7597 mutex_unlock(&priv
->mutex
);
7602 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
7603 store_filter_flags
);
7605 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
7607 static ssize_t
show_measurement(struct device
*d
,
7608 struct device_attribute
*attr
, char *buf
)
7610 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7611 struct iwl4965_spectrum_notification measure_report
;
7612 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
7613 u8
*data
= (u8
*) & measure_report
;
7614 unsigned long flags
;
7616 spin_lock_irqsave(&priv
->lock
, flags
);
7617 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
7618 spin_unlock_irqrestore(&priv
->lock
, flags
);
7621 memcpy(&measure_report
, &priv
->measure_report
, size
);
7622 priv
->measurement_status
= 0;
7623 spin_unlock_irqrestore(&priv
->lock
, flags
);
7625 while (size
&& (PAGE_SIZE
- len
)) {
7626 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7627 PAGE_SIZE
- len
, 1);
7629 if (PAGE_SIZE
- len
)
7633 size
-= min(size
, 16U);
7639 static ssize_t
store_measurement(struct device
*d
,
7640 struct device_attribute
*attr
,
7641 const char *buf
, size_t count
)
7643 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7644 struct ieee80211_measurement_params params
= {
7645 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
7646 .start_time
= cpu_to_le64(priv
->last_tsf
),
7647 .duration
= cpu_to_le16(1),
7649 u8 type
= IWL_MEASURE_BASIC
;
7655 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
7656 channel
= simple_strtoul(p
, NULL
, 0);
7658 params
.channel
= channel
;
7661 while (*p
&& *p
!= ' ')
7664 type
= simple_strtoul(p
+ 1, NULL
, 0);
7667 IWL_DEBUG_INFO("Invoking measurement of type %d on "
7668 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
7669 iwl4965_get_measurement(priv
, ¶ms
, type
);
7674 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
7675 show_measurement
, store_measurement
);
7676 #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
7678 static ssize_t
store_retry_rate(struct device
*d
,
7679 struct device_attribute
*attr
,
7680 const char *buf
, size_t count
)
7682 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7684 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
7685 if (priv
->retry_rate
<= 0)
7686 priv
->retry_rate
= 1;
7691 static ssize_t
show_retry_rate(struct device
*d
,
7692 struct device_attribute
*attr
, char *buf
)
7694 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7695 return sprintf(buf
, "%d", priv
->retry_rate
);
7698 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
7701 static ssize_t
store_power_level(struct device
*d
,
7702 struct device_attribute
*attr
,
7703 const char *buf
, size_t count
)
7705 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7709 mode
= simple_strtoul(buf
, NULL
, 0);
7710 mutex_lock(&priv
->mutex
);
7712 if (!iwl4965_is_ready(priv
)) {
7717 if ((mode
< 1) || (mode
> IWL_POWER_LIMIT
) || (mode
== IWL_POWER_AC
))
7718 mode
= IWL_POWER_AC
;
7720 mode
|= IWL_POWER_ENABLED
;
7722 if (mode
!= priv
->power_mode
) {
7723 rc
= iwl4965_send_power_mode(priv
, IWL_POWER_LEVEL(mode
));
7725 IWL_DEBUG_MAC80211("failed setting power mode.\n");
7728 priv
->power_mode
= mode
;
7734 mutex_unlock(&priv
->mutex
);
7738 #define MAX_WX_STRING 80
7740 /* Values are in microsecond */
7741 static const s32 timeout_duration
[] = {
7748 static const s32 period_duration
[] = {
7756 static ssize_t
show_power_level(struct device
*d
,
7757 struct device_attribute
*attr
, char *buf
)
7759 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7760 int level
= IWL_POWER_LEVEL(priv
->power_mode
);
7763 p
+= sprintf(p
, "%d ", level
);
7765 case IWL_POWER_MODE_CAM
:
7767 p
+= sprintf(p
, "(AC)");
7769 case IWL_POWER_BATTERY
:
7770 p
+= sprintf(p
, "(BATTERY)");
7774 "(Timeout %dms, Period %dms)",
7775 timeout_duration
[level
- 1] / 1000,
7776 period_duration
[level
- 1] / 1000);
7779 if (!(priv
->power_mode
& IWL_POWER_ENABLED
))
7780 p
+= sprintf(p
, " OFF\n");
7782 p
+= sprintf(p
, " \n");
7784 return (p
- buf
+ 1);
7788 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
7791 static ssize_t
show_channels(struct device
*d
,
7792 struct device_attribute
*attr
, char *buf
)
7794 /* all this shit doesn't belong into sysfs anyway */
7798 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
7800 static ssize_t
show_statistics(struct device
*d
,
7801 struct device_attribute
*attr
, char *buf
)
7803 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7804 u32 size
= sizeof(struct iwl4965_notif_statistics
);
7805 u32 len
= 0, ofs
= 0;
7806 u8
*data
= (u8
*) & priv
->statistics
;
7809 if (!iwl4965_is_alive(priv
))
7812 mutex_lock(&priv
->mutex
);
7813 rc
= iwl4965_send_statistics_request(priv
);
7814 mutex_unlock(&priv
->mutex
);
7818 "Error sending statistics request: 0x%08X\n", rc
);
7822 while (size
&& (PAGE_SIZE
- len
)) {
7823 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
7824 PAGE_SIZE
- len
, 1);
7826 if (PAGE_SIZE
- len
)
7830 size
-= min(size
, 16U);
7836 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
7838 static ssize_t
show_antenna(struct device
*d
,
7839 struct device_attribute
*attr
, char *buf
)
7841 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7843 if (!iwl4965_is_alive(priv
))
7846 return sprintf(buf
, "%d\n", priv
->antenna
);
7849 static ssize_t
store_antenna(struct device
*d
,
7850 struct device_attribute
*attr
,
7851 const char *buf
, size_t count
)
7854 struct iwl_priv
*priv
= dev_get_drvdata(d
);
7859 if (sscanf(buf
, "%1i", &ant
) != 1) {
7860 IWL_DEBUG_INFO("not in hex or decimal form.\n");
7864 if ((ant
>= 0) && (ant
<= 2)) {
7865 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant
);
7866 priv
->antenna
= (enum iwl4965_antenna
)ant
;
7868 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant
);
7874 static DEVICE_ATTR(antenna
, S_IWUSR
| S_IRUGO
, show_antenna
, store_antenna
);
7876 static ssize_t
show_status(struct device
*d
,
7877 struct device_attribute
*attr
, char *buf
)
7879 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7880 if (!iwl4965_is_alive(priv
))
7882 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
7885 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
7887 static ssize_t
dump_error_log(struct device
*d
,
7888 struct device_attribute
*attr
,
7889 const char *buf
, size_t count
)
7891 char *p
= (char *)buf
;
7894 iwl4965_dump_nic_error_log((struct iwl_priv
*)d
->driver_data
);
7896 return strnlen(buf
, count
);
7899 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
7901 static ssize_t
dump_event_log(struct device
*d
,
7902 struct device_attribute
*attr
,
7903 const char *buf
, size_t count
)
7905 char *p
= (char *)buf
;
7908 iwl4965_dump_nic_event_log((struct iwl_priv
*)d
->driver_data
);
7910 return strnlen(buf
, count
);
7913 static DEVICE_ATTR(dump_events
, S_IWUSR
, NULL
, dump_event_log
);
7915 /*****************************************************************************
7917 * driver setup and teardown
7919 *****************************************************************************/
7921 static void iwl4965_setup_deferred_work(struct iwl_priv
*priv
)
7923 priv
->workqueue
= create_workqueue(DRV_NAME
);
7925 init_waitqueue_head(&priv
->wait_command_queue
);
7927 INIT_WORK(&priv
->up
, iwl4965_bg_up
);
7928 INIT_WORK(&priv
->restart
, iwl4965_bg_restart
);
7929 INIT_WORK(&priv
->rx_replenish
, iwl4965_bg_rx_replenish
);
7930 INIT_WORK(&priv
->scan_completed
, iwl4965_bg_scan_completed
);
7931 INIT_WORK(&priv
->request_scan
, iwl4965_bg_request_scan
);
7932 INIT_WORK(&priv
->abort_scan
, iwl4965_bg_abort_scan
);
7933 INIT_WORK(&priv
->rf_kill
, iwl4965_bg_rf_kill
);
7934 INIT_WORK(&priv
->beacon_update
, iwl4965_bg_beacon_update
);
7935 INIT_DELAYED_WORK(&priv
->post_associate
, iwl4965_bg_post_associate
);
7936 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl4965_bg_init_alive_start
);
7937 INIT_DELAYED_WORK(&priv
->alive_start
, iwl4965_bg_alive_start
);
7938 INIT_DELAYED_WORK(&priv
->scan_check
, iwl4965_bg_scan_check
);
7940 iwl4965_hw_setup_deferred_work(priv
);
7942 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
7943 iwl4965_irq_tasklet
, (unsigned long)priv
);
7946 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
)
7948 iwl4965_hw_cancel_deferred_work(priv
);
7950 cancel_delayed_work_sync(&priv
->init_alive_start
);
7951 cancel_delayed_work(&priv
->scan_check
);
7952 cancel_delayed_work(&priv
->alive_start
);
7953 cancel_delayed_work(&priv
->post_associate
);
7954 cancel_work_sync(&priv
->beacon_update
);
7957 static struct attribute
*iwl4965_sysfs_entries
[] = {
7958 &dev_attr_antenna
.attr
,
7959 &dev_attr_channels
.attr
,
7960 &dev_attr_dump_errors
.attr
,
7961 &dev_attr_dump_events
.attr
,
7962 &dev_attr_flags
.attr
,
7963 &dev_attr_filter_flags
.attr
,
7964 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
7965 &dev_attr_measurement
.attr
,
7967 &dev_attr_power_level
.attr
,
7968 &dev_attr_retry_rate
.attr
,
7969 &dev_attr_rs_window
.attr
,
7970 &dev_attr_statistics
.attr
,
7971 &dev_attr_status
.attr
,
7972 &dev_attr_temperature
.attr
,
7973 &dev_attr_tx_power
.attr
,
7978 static struct attribute_group iwl4965_attribute_group
= {
7979 .name
= NULL
, /* put in device directory */
7980 .attrs
= iwl4965_sysfs_entries
,
7983 static struct ieee80211_ops iwl4965_hw_ops
= {
7984 .tx
= iwl4965_mac_tx
,
7985 .start
= iwl4965_mac_start
,
7986 .stop
= iwl4965_mac_stop
,
7987 .add_interface
= iwl4965_mac_add_interface
,
7988 .remove_interface
= iwl4965_mac_remove_interface
,
7989 .config
= iwl4965_mac_config
,
7990 .config_interface
= iwl4965_mac_config_interface
,
7991 .configure_filter
= iwl4965_configure_filter
,
7992 .set_key
= iwl4965_mac_set_key
,
7993 .update_tkip_key
= iwl4965_mac_update_tkip_key
,
7994 .get_stats
= iwl4965_mac_get_stats
,
7995 .get_tx_stats
= iwl4965_mac_get_tx_stats
,
7996 .conf_tx
= iwl4965_mac_conf_tx
,
7997 .get_tsf
= iwl4965_mac_get_tsf
,
7998 .reset_tsf
= iwl4965_mac_reset_tsf
,
7999 .beacon_update
= iwl4965_mac_beacon_update
,
8000 .bss_info_changed
= iwl4965_bss_info_changed
,
8001 #ifdef CONFIG_IWL4965_HT
8002 .conf_ht
= iwl4965_mac_conf_ht
,
8003 .ampdu_action
= iwl4965_mac_ampdu_action
,
8004 #endif /* CONFIG_IWL4965_HT */
8005 .hw_scan
= iwl4965_mac_hw_scan
8008 static int iwl4965_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
8011 struct iwl_priv
*priv
;
8012 struct ieee80211_hw
*hw
;
8013 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
8014 unsigned long flags
;
8015 DECLARE_MAC_BUF(mac
);
8017 /************************
8018 * 1. Allocating HW data
8019 ************************/
8021 /* Disabling hardware scan means that mac80211 will perform scans
8022 * "the hard way", rather than using device's scan. */
8023 if (cfg
->mod_params
->disable_hw_scan
) {
8024 IWL_DEBUG_INFO("Disabling hw_scan\n");
8025 iwl4965_hw_ops
.hw_scan
= NULL
;
8028 hw
= iwl_alloc_all(cfg
, &iwl4965_hw_ops
);
8034 /* At this point both hw and priv are allocated. */
8036 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
8038 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
8040 priv
->pci_dev
= pdev
;
8042 #ifdef CONFIG_IWLWIFI_DEBUG
8043 iwl_debug_level
= priv
->cfg
->mod_params
->debug
;
8044 atomic_set(&priv
->restrict_refcnt
, 0);
8047 /**************************
8048 * 2. Initializing PCI bus
8049 **************************/
8050 if (pci_enable_device(pdev
)) {
8052 goto out_ieee80211_free_hw
;
8055 pci_set_master(pdev
);
8057 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
8059 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
8061 printk(KERN_WARNING DRV_NAME
8062 ": No suitable DMA available.\n");
8063 goto out_pci_disable_device
;
8066 err
= pci_request_regions(pdev
, DRV_NAME
);
8068 goto out_pci_disable_device
;
8070 pci_set_drvdata(pdev
, priv
);
8072 /* We disable the RETRY_TIMEOUT register (0x41) to keep
8073 * PCI Tx retries from interfering with C3 CPU state */
8074 pci_write_config_byte(pdev
, 0x41, 0x00);
8076 /***********************
8077 * 3. Read REV register
8078 ***********************/
8079 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
8080 if (!priv
->hw_base
) {
8082 goto out_pci_release_regions
;
8085 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
8086 (unsigned long long) pci_resource_len(pdev
, 0));
8087 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
8089 printk(KERN_INFO DRV_NAME
8090 ": Detected Intel Wireless WiFi Link %s\n", priv
->cfg
->name
);
8096 iwl_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
8097 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER
);
8099 iwl_set_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
8100 err
= iwl_poll_bit(priv
, CSR_GP_CNTRL
,
8101 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
,
8102 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
, 25000);
8104 IWL_DEBUG_INFO("Failed to init the card\n");
8107 /* Read the EEPROM */
8108 err
= iwl_eeprom_init(priv
);
8110 IWL_ERROR("Unable to init EEPROM\n");
8113 /* MAC Address location in EEPROM same for 3945/4965 */
8114 iwl_eeprom_get_mac(priv
, priv
->mac_addr
);
8115 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac
, priv
->mac_addr
));
8116 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
8118 /************************
8119 * 5. Setup HW constants
8120 ************************/
8121 /* Device-specific setup */
8122 if (iwl4965_hw_set_hw_setting(priv
)) {
8123 IWL_ERROR("failed to set hw settings\n");
8127 /*******************
8129 *******************/
8131 err
= iwl_setup(priv
);
8133 goto out_unset_hw_settings
;
8134 /* At this point both hw and priv are initialized. */
8136 /**********************************
8137 * 7. Initialize module parameters
8138 **********************************/
8140 /* Disable radio (SW RF KILL) via parameter when loading driver */
8141 if (priv
->cfg
->mod_params
->disable
) {
8142 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
8143 IWL_DEBUG_INFO("Radio disabled.\n");
8146 if (priv
->cfg
->mod_params
->enable_qos
)
8147 priv
->qos_data
.qos_enable
= 1;
8149 /********************
8151 ********************/
8152 spin_lock_irqsave(&priv
->lock
, flags
);
8153 iwl4965_disable_interrupts(priv
);
8154 spin_unlock_irqrestore(&priv
->lock
, flags
);
8156 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
8158 IWL_ERROR("failed to create sysfs device attributes\n");
8159 goto out_unset_hw_settings
;
8162 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
8164 IWL_ERROR("failed to create debugfs files\n");
8165 goto out_remove_sysfs
;
8168 iwl4965_setup_deferred_work(priv
);
8169 iwl4965_setup_rx_handlers(priv
);
8171 /********************
8173 ********************/
8174 pci_save_state(pdev
);
8175 pci_disable_device(pdev
);
8177 /* notify iwlcore to init */
8178 iwlcore_low_level_notify(priv
, IWLCORE_INIT_EVT
);
8182 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
8183 out_unset_hw_settings
:
8184 iwl4965_unset_hw_setting(priv
);
8186 pci_iounmap(pdev
, priv
->hw_base
);
8187 out_pci_release_regions
:
8188 pci_release_regions(pdev
);
8189 pci_set_drvdata(pdev
, NULL
);
8190 out_pci_disable_device
:
8191 pci_disable_device(pdev
);
8192 out_ieee80211_free_hw
:
8193 ieee80211_free_hw(priv
->hw
);
8198 static void __devexit
iwl4965_pci_remove(struct pci_dev
*pdev
)
8200 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
8201 struct list_head
*p
, *q
;
8203 unsigned long flags
;
8208 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
8210 if (priv
->mac80211_registered
) {
8211 ieee80211_unregister_hw(priv
->hw
);
8212 priv
->mac80211_registered
= 0;
8215 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
8219 /* make sure we flush any pending irq or
8220 * tasklet for the driver
8222 spin_lock_irqsave(&priv
->lock
, flags
);
8223 iwl4965_disable_interrupts(priv
);
8224 spin_unlock_irqrestore(&priv
->lock
, flags
);
8226 iwl_synchronize_irq(priv
);
8228 /* Free MAC hash list for ADHOC */
8229 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++) {
8230 list_for_each_safe(p
, q
, &priv
->ibss_mac_hash
[i
]) {
8232 kfree(list_entry(p
, struct iwl4965_ibss_seq
, list
));
8236 iwlcore_low_level_notify(priv
, IWLCORE_REMOVE_EVT
);
8237 iwl_dbgfs_unregister(priv
);
8238 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
8240 iwl4965_dealloc_ucode_pci(priv
);
8243 iwl4965_rx_queue_free(priv
, &priv
->rxq
);
8244 iwl4965_hw_txq_ctx_free(priv
);
8246 iwl4965_unset_hw_setting(priv
);
8247 iwlcore_clear_stations_table(priv
);
8250 /*netif_stop_queue(dev); */
8251 flush_workqueue(priv
->workqueue
);
8253 /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
8254 * priv->workqueue... so we can't take down the workqueue
8256 destroy_workqueue(priv
->workqueue
);
8257 priv
->workqueue
= NULL
;
8259 pci_iounmap(pdev
, priv
->hw_base
);
8260 pci_release_regions(pdev
);
8261 pci_disable_device(pdev
);
8262 pci_set_drvdata(pdev
, NULL
);
8264 iwl_free_channel_map(priv
);
8265 iwl4965_free_geos(priv
);
8267 if (priv
->ibss_beacon
)
8268 dev_kfree_skb(priv
->ibss_beacon
);
8270 ieee80211_free_hw(priv
->hw
);
8275 static int iwl4965_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
8277 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
8279 if (priv
->is_open
) {
8280 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8281 iwl4965_mac_stop(priv
->hw
);
8285 pci_set_power_state(pdev
, PCI_D3hot
);
8290 static int iwl4965_pci_resume(struct pci_dev
*pdev
)
8292 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
8294 pci_set_power_state(pdev
, PCI_D0
);
8297 iwl4965_mac_start(priv
->hw
);
8299 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8303 #endif /* CONFIG_PM */
8305 /*****************************************************************************
8307 * driver and module entry point
8309 *****************************************************************************/
8311 static struct pci_driver iwl4965_driver
= {
8313 .id_table
= iwl4965_hw_card_ids
,
8314 .probe
= iwl4965_pci_probe
,
8315 .remove
= __devexit_p(iwl4965_pci_remove
),
8317 .suspend
= iwl4965_pci_suspend
,
8318 .resume
= iwl4965_pci_resume
,
8322 static int __init
iwl4965_init(void)
8326 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
8327 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
8329 ret
= iwl4965_rate_control_register();
8331 IWL_ERROR("Unable to register rate control algorithm: %d\n", ret
);
8335 ret
= pci_register_driver(&iwl4965_driver
);
8337 IWL_ERROR("Unable to initialize PCI module\n");
8338 goto error_register
;
8340 #ifdef CONFIG_IWLWIFI_DEBUG
8341 ret
= driver_create_file(&iwl4965_driver
.driver
, &driver_attr_debug_level
);
8343 IWL_ERROR("Unable to create driver sysfs file\n");
8350 #ifdef CONFIG_IWLWIFI_DEBUG
8352 pci_unregister_driver(&iwl4965_driver
);
8355 iwl4965_rate_control_unregister();
8359 static void __exit
iwl4965_exit(void)
8361 #ifdef CONFIG_IWLWIFI_DEBUG
8362 driver_remove_file(&iwl4965_driver
.driver
, &driver_attr_debug_level
);
8364 pci_unregister_driver(&iwl4965_driver
);
8365 iwl4965_rate_control_unregister();
8368 module_exit(iwl4965_exit
);
8369 module_init(iwl4965_init
);