1 /******************************************************************************
3 * Copyright(c) 2003 - 2008 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * James P. Ketrenos <ipw2100-admin@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/version.h>
33 #include <linux/init.h>
34 #include <linux/pci.h>
35 #include <linux/dma-mapping.h>
36 #include <linux/delay.h>
37 #include <linux/skbuff.h>
38 #include <linux/netdevice.h>
39 #include <linux/wireless.h>
40 #include <linux/firmware.h>
41 #include <linux/etherdevice.h>
42 #include <linux/if_arp.h>
44 #include <net/mac80211.h>
46 #include <asm/div64.h>
48 #include "iwl-eeprom.h"
51 #include "iwl-helpers.h"
53 static int iwl4965_tx_queue_update_write_ptr(struct iwl_priv
*priv
,
54 struct iwl4965_tx_queue
*txq
);
56 /******************************************************************************
60 ******************************************************************************/
62 /* module parameters */
63 static int iwl4965_param_disable_hw_scan
; /* def: 0 = use 4965's h/w scan */
64 static int iwl4965_param_debug
; /* def: 0 = minimal debug log messages */
65 static int iwl4965_param_disable
; /* def: enable radio */
66 static int iwl4965_param_antenna
; /* def: 0 = both antennas (use diversity) */
67 int iwl4965_param_hwcrypto
; /* def: using software encryption */
68 static int iwl4965_param_qos_enable
= 1; /* def: 1 = use quality of service */
69 int iwl4965_param_queues_num
= IWL_MAX_NUM_QUEUES
; /* def: 16 Tx queues */
70 int iwl4965_param_amsdu_size_8K
; /* def: enable 8K amsdu size */
73 * module name, copyright, version, etc.
74 * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
77 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link 4965AGN driver for Linux"
79 #ifdef CONFIG_IWLWIFI_DEBUG
85 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
91 #define DRV_VERSION IWLWIFI_VERSION VD VS
94 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
95 MODULE_VERSION(DRV_VERSION
);
96 MODULE_AUTHOR(DRV_COPYRIGHT
);
97 MODULE_LICENSE("GPL");
99 __le16
*ieee80211_get_qos_ctrl(struct ieee80211_hdr
*hdr
)
101 u16 fc
= le16_to_cpu(hdr
->frame_control
);
102 int hdr_len
= ieee80211_get_hdrlen(fc
);
104 if ((fc
& 0x00cc) == (IEEE80211_STYPE_QOS_DATA
| IEEE80211_FTYPE_DATA
))
105 return (__le16
*) ((u8
*) hdr
+ hdr_len
- QOS_CONTROL_LEN
);
109 static const struct ieee80211_supported_band
*iwl4965_get_hw_mode(
110 struct iwl_priv
*priv
, enum ieee80211_band band
)
112 return priv
->hw
->wiphy
->bands
[band
];
115 static int iwl4965_is_empty_essid(const char *essid
, int essid_len
)
117 /* Single white space is for Linksys APs */
118 if (essid_len
== 1 && essid
[0] == ' ')
121 /* Otherwise, if the entire essid is 0, we assume it is hidden */
124 if (essid
[essid_len
] != '\0')
131 static const char *iwl4965_escape_essid(const char *essid
, u8 essid_len
)
133 static char escaped
[IW_ESSID_MAX_SIZE
* 2 + 1];
134 const char *s
= essid
;
137 if (iwl4965_is_empty_essid(essid
, essid_len
)) {
138 memcpy(escaped
, "<hidden>", sizeof("<hidden>"));
142 essid_len
= min(essid_len
, (u8
) IW_ESSID_MAX_SIZE
);
143 while (essid_len
--) {
155 /*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
158 * Theory of operation
160 * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
161 * of buffer descriptors, each of which points to one or more data buffers for
162 * the device to read from or fill. Driver and device exchange status of each
163 * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
164 * entries in each circular buffer, to protect against confusing empty and full
167 * The device reads or writes the data in the queues via the device's several
168 * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
170 * For Tx queue, there are low mark and high mark limits. If, after queuing
171 * the packet for Tx, free space become < low mark, Tx queue stopped. When
172 * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
175 * The 4965 operates with up to 17 queues: One receive queue, one transmit
176 * queue (#4) for sending commands to the device firmware, and 15 other
177 * Tx queues that may be mapped to prioritized Tx DMA/FIFO channels.
179 * See more detailed info in iwl-4965-hw.h.
180 ***************************************************/
182 int iwl4965_queue_space(const struct iwl4965_queue
*q
)
184 int s
= q
->read_ptr
- q
->write_ptr
;
186 if (q
->read_ptr
> q
->write_ptr
)
191 /* keep some reserve to not confuse empty and full situations */
199 static inline int x2_queue_used(const struct iwl4965_queue
*q
, int i
)
201 return q
->write_ptr
> q
->read_ptr
?
202 (i
>= q
->read_ptr
&& i
< q
->write_ptr
) :
203 !(i
< q
->read_ptr
&& i
>= q
->write_ptr
);
206 static inline u8
get_cmd_index(struct iwl4965_queue
*q
, u32 index
, int is_huge
)
208 /* This is for scan command, the big buffer at end of command array */
210 return q
->n_window
; /* must be power of 2 */
212 /* Otherwise, use normal size buffers */
213 return index
& (q
->n_window
- 1);
217 * iwl4965_queue_init - Initialize queue's high/low-water and read/write indexes
219 static int iwl4965_queue_init(struct iwl_priv
*priv
, struct iwl4965_queue
*q
,
220 int count
, int slots_num
, u32 id
)
223 q
->n_window
= slots_num
;
226 /* count must be power-of-two size, otherwise iwl_queue_inc_wrap
227 * and iwl_queue_dec_wrap are broken. */
228 BUG_ON(!is_power_of_2(count
));
230 /* slots_num must be power-of-two size, otherwise
231 * get_cmd_index is broken. */
232 BUG_ON(!is_power_of_2(slots_num
));
234 q
->low_mark
= q
->n_window
/ 4;
238 q
->high_mark
= q
->n_window
/ 8;
239 if (q
->high_mark
< 2)
242 q
->write_ptr
= q
->read_ptr
= 0;
248 * iwl4965_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
250 static int iwl4965_tx_queue_alloc(struct iwl_priv
*priv
,
251 struct iwl4965_tx_queue
*txq
, u32 id
)
253 struct pci_dev
*dev
= priv
->pci_dev
;
255 /* Driver private data, only for Tx (not command) queues,
256 * not shared with device. */
257 if (id
!= IWL_CMD_QUEUE_NUM
) {
258 txq
->txb
= kmalloc(sizeof(txq
->txb
[0]) *
259 TFD_QUEUE_SIZE_MAX
, GFP_KERNEL
);
261 IWL_ERROR("kmalloc for auxiliary BD "
262 "structures failed\n");
268 /* Circular buffer of transmit frame descriptors (TFDs),
269 * shared with device */
270 txq
->bd
= pci_alloc_consistent(dev
,
271 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
,
275 IWL_ERROR("pci_alloc_consistent(%zd) failed\n",
276 sizeof(txq
->bd
[0]) * TFD_QUEUE_SIZE_MAX
);
293 * iwl4965_tx_queue_init - Allocate and initialize one tx/cmd queue
295 int iwl4965_tx_queue_init(struct iwl_priv
*priv
,
296 struct iwl4965_tx_queue
*txq
, int slots_num
, u32 txq_id
)
298 struct pci_dev
*dev
= priv
->pci_dev
;
303 * Alloc buffer array for commands (Tx or other types of commands).
304 * For the command queue (#4), allocate command space + one big
305 * command for scan, since scan command is very huge; the system will
306 * not have two scans at the same time, so only one is needed.
307 * For normal Tx queues (all other queues), no super-size command
310 len
= sizeof(struct iwl4965_cmd
) * slots_num
;
311 if (txq_id
== IWL_CMD_QUEUE_NUM
)
312 len
+= IWL_MAX_SCAN_SIZE
;
313 txq
->cmd
= pci_alloc_consistent(dev
, len
, &txq
->dma_addr_cmd
);
317 /* Alloc driver data array and TFD circular buffer */
318 rc
= iwl4965_tx_queue_alloc(priv
, txq
, txq_id
);
320 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
324 txq
->need_update
= 0;
326 /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
327 * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */
328 BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX
& (TFD_QUEUE_SIZE_MAX
- 1));
330 /* Initialize queue's high/low-water marks, and head/tail indexes */
331 iwl4965_queue_init(priv
, &txq
->q
, TFD_QUEUE_SIZE_MAX
, slots_num
, txq_id
);
333 /* Tell device where to find queue */
334 iwl4965_hw_tx_queue_init(priv
, txq
);
340 * iwl4965_tx_queue_free - Deallocate DMA queue.
341 * @txq: Transmit queue to deallocate.
343 * Empty queue by removing and destroying all BD's.
345 * 0-fill, but do not free "txq" descriptor structure.
347 void iwl4965_tx_queue_free(struct iwl_priv
*priv
, struct iwl4965_tx_queue
*txq
)
349 struct iwl4965_queue
*q
= &txq
->q
;
350 struct pci_dev
*dev
= priv
->pci_dev
;
356 /* first, empty all BD's */
357 for (; q
->write_ptr
!= q
->read_ptr
;
358 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
))
359 iwl4965_hw_txq_free_tfd(priv
, txq
);
361 len
= sizeof(struct iwl4965_cmd
) * q
->n_window
;
362 if (q
->id
== IWL_CMD_QUEUE_NUM
)
363 len
+= IWL_MAX_SCAN_SIZE
;
365 /* De-alloc array of command/tx buffers */
366 pci_free_consistent(dev
, len
, txq
->cmd
, txq
->dma_addr_cmd
);
368 /* De-alloc circular buffer of TFDs */
370 pci_free_consistent(dev
, sizeof(struct iwl4965_tfd_frame
) *
371 txq
->q
.n_bd
, txq
->bd
, txq
->q
.dma_addr
);
373 /* De-alloc array of per-TFD driver data */
379 /* 0-fill queue descriptor structure */
380 memset(txq
, 0, sizeof(*txq
));
383 const u8 iwl4965_broadcast_addr
[ETH_ALEN
] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
385 /*************** STATION TABLE MANAGEMENT ****
386 * mac80211 should be examined to determine if sta_info is duplicating
387 * the functionality provided here
390 /**************************************************************/
392 #if 0 /* temporary disable till we add real remove station */
394 * iwl4965_remove_station - Remove driver's knowledge of station.
396 * NOTE: This does not remove station from device's station table.
398 static u8
iwl4965_remove_station(struct iwl_priv
*priv
, const u8
*addr
, int is_ap
)
400 int index
= IWL_INVALID_STATION
;
404 spin_lock_irqsave(&priv
->sta_lock
, flags
);
408 else if (is_broadcast_ether_addr(addr
))
409 index
= priv
->hw_setting
.bcast_sta_id
;
411 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++)
412 if (priv
->stations
[i
].used
&&
413 !compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
419 if (unlikely(index
== IWL_INVALID_STATION
))
422 if (priv
->stations
[index
].used
) {
423 priv
->stations
[index
].used
= 0;
424 priv
->num_stations
--;
427 BUG_ON(priv
->num_stations
< 0);
430 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
436 * iwl4965_clear_stations_table - Clear the driver's station table
438 * NOTE: This does not clear or otherwise alter the device's station table.
440 static void iwl4965_clear_stations_table(struct iwl_priv
*priv
)
444 spin_lock_irqsave(&priv
->sta_lock
, flags
);
446 priv
->num_stations
= 0;
447 memset(priv
->stations
, 0, sizeof(priv
->stations
));
449 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
453 * iwl4965_add_station_flags - Add station to tables in driver and device
455 u8
iwl4965_add_station_flags(struct iwl_priv
*priv
, const u8
*addr
,
456 int is_ap
, u8 flags
, void *ht_data
)
459 int index
= IWL_INVALID_STATION
;
460 struct iwl4965_station_entry
*station
;
461 unsigned long flags_spin
;
462 DECLARE_MAC_BUF(mac
);
464 spin_lock_irqsave(&priv
->sta_lock
, flags_spin
);
467 else if (is_broadcast_ether_addr(addr
))
468 index
= priv
->hw_setting
.bcast_sta_id
;
470 for (i
= IWL_STA_ID
; i
< priv
->hw_setting
.max_stations
; i
++) {
471 if (!compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
477 if (!priv
->stations
[i
].used
&&
478 index
== IWL_INVALID_STATION
)
483 /* These two conditions have the same outcome, but keep them separate
484 since they have different meanings */
485 if (unlikely(index
== IWL_INVALID_STATION
)) {
486 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
490 if (priv
->stations
[index
].used
&&
491 !compare_ether_addr(priv
->stations
[index
].sta
.sta
.addr
, addr
)) {
492 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
497 IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index
, print_mac(mac
, addr
));
498 station
= &priv
->stations
[index
];
500 priv
->num_stations
++;
502 /* Set up the REPLY_ADD_STA command to send to device */
503 memset(&station
->sta
, 0, sizeof(struct iwl4965_addsta_cmd
));
504 memcpy(station
->sta
.sta
.addr
, addr
, ETH_ALEN
);
505 station
->sta
.mode
= 0;
506 station
->sta
.sta
.sta_id
= index
;
507 station
->sta
.station_flags
= 0;
509 #ifdef CONFIG_IWL4965_HT
510 /* BCAST station and IBSS stations do not work in HT mode */
511 if (index
!= priv
->hw_setting
.bcast_sta_id
&&
512 priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
)
513 iwl4965_set_ht_add_station(priv
, index
,
514 (struct ieee80211_ht_info
*) ht_data
);
515 #endif /*CONFIG_IWL4965_HT*/
517 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
519 /* Add station to device's station table */
520 iwl4965_send_add_station(priv
, &station
->sta
, flags
);
525 /*************** DRIVER STATUS FUNCTIONS *****/
527 static inline int iwl4965_is_ready(struct iwl_priv
*priv
)
529 /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
530 * set but EXIT_PENDING is not */
531 return test_bit(STATUS_READY
, &priv
->status
) &&
532 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) &&
533 !test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
536 static inline int iwl4965_is_alive(struct iwl_priv
*priv
)
538 return test_bit(STATUS_ALIVE
, &priv
->status
);
541 static inline int iwl4965_is_init(struct iwl_priv
*priv
)
543 return test_bit(STATUS_INIT
, &priv
->status
);
546 static inline int iwl4965_is_rfkill(struct iwl_priv
*priv
)
548 return test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ||
549 test_bit(STATUS_RF_KILL_SW
, &priv
->status
);
552 static inline int iwl4965_is_ready_rf(struct iwl_priv
*priv
)
555 if (iwl4965_is_rfkill(priv
))
558 return iwl4965_is_ready(priv
);
561 /*************** HOST COMMAND QUEUE FUNCTIONS *****/
563 #define IWL_CMD(x) case x : return #x
565 static const char *get_cmd_string(u8 cmd
)
568 IWL_CMD(REPLY_ALIVE
);
569 IWL_CMD(REPLY_ERROR
);
571 IWL_CMD(REPLY_RXON_ASSOC
);
572 IWL_CMD(REPLY_QOS_PARAM
);
573 IWL_CMD(REPLY_RXON_TIMING
);
574 IWL_CMD(REPLY_ADD_STA
);
575 IWL_CMD(REPLY_REMOVE_STA
);
576 IWL_CMD(REPLY_REMOVE_ALL_STA
);
578 IWL_CMD(REPLY_RATE_SCALE
);
579 IWL_CMD(REPLY_LEDS_CMD
);
580 IWL_CMD(REPLY_TX_LINK_QUALITY_CMD
);
581 IWL_CMD(RADAR_NOTIFICATION
);
582 IWL_CMD(REPLY_QUIET_CMD
);
583 IWL_CMD(REPLY_CHANNEL_SWITCH
);
584 IWL_CMD(CHANNEL_SWITCH_NOTIFICATION
);
585 IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD
);
586 IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION
);
587 IWL_CMD(POWER_TABLE_CMD
);
588 IWL_CMD(PM_SLEEP_NOTIFICATION
);
589 IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC
);
590 IWL_CMD(REPLY_SCAN_CMD
);
591 IWL_CMD(REPLY_SCAN_ABORT_CMD
);
592 IWL_CMD(SCAN_START_NOTIFICATION
);
593 IWL_CMD(SCAN_RESULTS_NOTIFICATION
);
594 IWL_CMD(SCAN_COMPLETE_NOTIFICATION
);
595 IWL_CMD(BEACON_NOTIFICATION
);
596 IWL_CMD(REPLY_TX_BEACON
);
597 IWL_CMD(WHO_IS_AWAKE_NOTIFICATION
);
598 IWL_CMD(QUIET_NOTIFICATION
);
599 IWL_CMD(REPLY_TX_PWR_TABLE_CMD
);
600 IWL_CMD(MEASURE_ABORT_NOTIFICATION
);
601 IWL_CMD(REPLY_BT_CONFIG
);
602 IWL_CMD(REPLY_STATISTICS_CMD
);
603 IWL_CMD(STATISTICS_NOTIFICATION
);
604 IWL_CMD(REPLY_CARD_STATE_CMD
);
605 IWL_CMD(CARD_STATE_NOTIFICATION
);
606 IWL_CMD(MISSED_BEACONS_NOTIFICATION
);
607 IWL_CMD(REPLY_CT_KILL_CONFIG_CMD
);
608 IWL_CMD(SENSITIVITY_CMD
);
609 IWL_CMD(REPLY_PHY_CALIBRATION_CMD
);
610 IWL_CMD(REPLY_RX_PHY_CMD
);
611 IWL_CMD(REPLY_RX_MPDU_CMD
);
612 IWL_CMD(REPLY_4965_RX
);
613 IWL_CMD(REPLY_COMPRESSED_BA
);
620 #define HOST_COMPLETE_TIMEOUT (HZ / 2)
623 * iwl4965_enqueue_hcmd - enqueue a uCode command
624 * @priv: device private data point
625 * @cmd: a point to the ucode command structure
627 * The function returns < 0 values to indicate the operation is
628 * failed. On success, it turns the index (> 0) of command in the
631 static int iwl4965_enqueue_hcmd(struct iwl_priv
*priv
, struct iwl4965_host_cmd
*cmd
)
633 struct iwl4965_tx_queue
*txq
= &priv
->txq
[IWL_CMD_QUEUE_NUM
];
634 struct iwl4965_queue
*q
= &txq
->q
;
635 struct iwl4965_tfd_frame
*tfd
;
637 struct iwl4965_cmd
*out_cmd
;
639 u16 fix_size
= (u16
)(cmd
->len
+ sizeof(out_cmd
->hdr
));
640 dma_addr_t phys_addr
;
644 /* If any of the command structures end up being larger than
645 * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
646 * we will need to increase the size of the TFD entries */
647 BUG_ON((fix_size
> TFD_MAX_PAYLOAD_SIZE
) &&
648 !(cmd
->meta
.flags
& CMD_SIZE_HUGE
));
650 if (iwl4965_is_rfkill(priv
)) {
651 IWL_DEBUG_INFO("Not sending command - RF KILL");
655 if (iwl4965_queue_space(q
) < ((cmd
->meta
.flags
& CMD_ASYNC
) ? 2 : 1)) {
656 IWL_ERROR("No space for Tx\n");
660 spin_lock_irqsave(&priv
->hcmd_lock
, flags
);
662 tfd
= &txq
->bd
[q
->write_ptr
];
663 memset(tfd
, 0, sizeof(*tfd
));
665 control_flags
= (u32
*) tfd
;
667 idx
= get_cmd_index(q
, q
->write_ptr
, cmd
->meta
.flags
& CMD_SIZE_HUGE
);
668 out_cmd
= &txq
->cmd
[idx
];
670 out_cmd
->hdr
.cmd
= cmd
->id
;
671 memcpy(&out_cmd
->meta
, &cmd
->meta
, sizeof(cmd
->meta
));
672 memcpy(&out_cmd
->cmd
.payload
, cmd
->data
, cmd
->len
);
674 /* At this point, the out_cmd now has all of the incoming cmd
677 out_cmd
->hdr
.flags
= 0;
678 out_cmd
->hdr
.sequence
= cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM
) |
679 INDEX_TO_SEQ(q
->write_ptr
));
680 if (out_cmd
->meta
.flags
& CMD_SIZE_HUGE
)
681 out_cmd
->hdr
.sequence
|= cpu_to_le16(SEQ_HUGE_FRAME
);
683 phys_addr
= txq
->dma_addr_cmd
+ sizeof(txq
->cmd
[0]) * idx
+
684 offsetof(struct iwl4965_cmd
, hdr
);
685 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, fix_size
);
687 IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
688 "%d bytes at %d[%d]:%d\n",
689 get_cmd_string(out_cmd
->hdr
.cmd
),
690 out_cmd
->hdr
.cmd
, le16_to_cpu(out_cmd
->hdr
.sequence
),
691 fix_size
, q
->write_ptr
, idx
, IWL_CMD_QUEUE_NUM
);
693 txq
->need_update
= 1;
695 /* Set up entry in queue's byte count circular buffer */
696 ret
= iwl4965_tx_queue_update_wr_ptr(priv
, txq
, 0);
698 /* Increment and update queue's write index */
699 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
700 iwl4965_tx_queue_update_write_ptr(priv
, txq
);
702 spin_unlock_irqrestore(&priv
->hcmd_lock
, flags
);
703 return ret
? ret
: idx
;
706 static int iwl4965_send_cmd_async(struct iwl_priv
*priv
, struct iwl4965_host_cmd
*cmd
)
710 BUG_ON(!(cmd
->meta
.flags
& CMD_ASYNC
));
712 /* An asynchronous command can not expect an SKB to be set. */
713 BUG_ON(cmd
->meta
.flags
& CMD_WANT_SKB
);
715 /* An asynchronous command MUST have a callback. */
716 BUG_ON(!cmd
->meta
.u
.callback
);
718 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
721 ret
= iwl4965_enqueue_hcmd(priv
, cmd
);
723 IWL_ERROR("Error sending %s: iwl4965_enqueue_hcmd failed: %d\n",
724 get_cmd_string(cmd
->id
), ret
);
730 static int iwl4965_send_cmd_sync(struct iwl_priv
*priv
, struct iwl4965_host_cmd
*cmd
)
734 static atomic_t entry
= ATOMIC_INIT(0); /* reentrance protection */
736 BUG_ON(cmd
->meta
.flags
& CMD_ASYNC
);
738 /* A synchronous command can not have a callback set. */
739 BUG_ON(cmd
->meta
.u
.callback
!= NULL
);
741 if (atomic_xchg(&entry
, 1)) {
742 IWL_ERROR("Error sending %s: Already sending a host command\n",
743 get_cmd_string(cmd
->id
));
747 set_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
749 if (cmd
->meta
.flags
& CMD_WANT_SKB
)
750 cmd
->meta
.source
= &cmd
->meta
;
752 cmd_idx
= iwl4965_enqueue_hcmd(priv
, cmd
);
755 IWL_ERROR("Error sending %s: iwl4965_enqueue_hcmd failed: %d\n",
756 get_cmd_string(cmd
->id
), ret
);
760 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
761 !test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
),
762 HOST_COMPLETE_TIMEOUT
);
764 if (test_bit(STATUS_HCMD_ACTIVE
, &priv
->status
)) {
765 IWL_ERROR("Error sending %s: time out after %dms.\n",
766 get_cmd_string(cmd
->id
),
767 jiffies_to_msecs(HOST_COMPLETE_TIMEOUT
));
769 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
775 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
776 IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
777 get_cmd_string(cmd
->id
));
781 if (test_bit(STATUS_FW_ERROR
, &priv
->status
)) {
782 IWL_DEBUG_INFO("Command %s failed: FW Error\n",
783 get_cmd_string(cmd
->id
));
787 if ((cmd
->meta
.flags
& CMD_WANT_SKB
) && !cmd
->meta
.u
.skb
) {
788 IWL_ERROR("Error: Response NULL in '%s'\n",
789 get_cmd_string(cmd
->id
));
798 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
799 struct iwl4965_cmd
*qcmd
;
801 /* Cancel the CMD_WANT_SKB flag for the cmd in the
802 * TX cmd queue. Otherwise in case the cmd comes
803 * in later, it will possibly set an invalid
804 * address (cmd->meta.source). */
805 qcmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_idx
];
806 qcmd
->meta
.flags
&= ~CMD_WANT_SKB
;
809 if (cmd
->meta
.u
.skb
) {
810 dev_kfree_skb_any(cmd
->meta
.u
.skb
);
811 cmd
->meta
.u
.skb
= NULL
;
814 atomic_set(&entry
, 0);
818 int iwl4965_send_cmd(struct iwl_priv
*priv
, struct iwl4965_host_cmd
*cmd
)
820 if (cmd
->meta
.flags
& CMD_ASYNC
)
821 return iwl4965_send_cmd_async(priv
, cmd
);
823 return iwl4965_send_cmd_sync(priv
, cmd
);
826 int iwl4965_send_cmd_pdu(struct iwl_priv
*priv
, u8 id
, u16 len
, const void *data
)
828 struct iwl4965_host_cmd cmd
= {
834 return iwl4965_send_cmd_sync(priv
, &cmd
);
837 static int __must_check
iwl4965_send_cmd_u32(struct iwl_priv
*priv
, u8 id
, u32 val
)
839 struct iwl4965_host_cmd cmd
= {
845 return iwl4965_send_cmd_sync(priv
, &cmd
);
848 int iwl4965_send_statistics_request(struct iwl_priv
*priv
)
850 return iwl4965_send_cmd_u32(priv
, REPLY_STATISTICS_CMD
, 0);
854 * iwl4965_rxon_add_station - add station into station table.
856 * there is only one AP station with id= IWL_AP_ID
857 * NOTE: mutex must be held before calling this fnction
859 static int iwl4965_rxon_add_station(struct iwl_priv
*priv
,
860 const u8
*addr
, int is_ap
)
864 /* Add station to device's station table */
865 #ifdef CONFIG_IWL4965_HT
866 struct ieee80211_conf
*conf
= &priv
->hw
->conf
;
867 struct ieee80211_ht_info
*cur_ht_config
= &conf
->ht_conf
;
870 (conf
->flags
& IEEE80211_CONF_SUPPORT_HT_MODE
) &&
871 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
872 sta_id
= iwl4965_add_station_flags(priv
, addr
, is_ap
,
875 #endif /* CONFIG_IWL4965_HT */
876 sta_id
= iwl4965_add_station_flags(priv
, addr
, is_ap
,
879 /* Set up default rate scaling table in device's station table */
880 iwl4965_add_station(priv
, addr
, is_ap
);
886 * iwl4965_set_rxon_channel - Set the phymode and channel values in staging RXON
887 * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
888 * @channel: Any channel valid for the requested phymode
890 * In addition to setting the staging RXON, priv->phymode is also set.
892 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
893 * in the staging RXON flag structure based on the phymode
895 static int iwl4965_set_rxon_channel(struct iwl_priv
*priv
,
896 enum ieee80211_band band
,
899 if (!iwl4965_get_channel_info(priv
, band
, channel
)) {
900 IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
905 if ((le16_to_cpu(priv
->staging_rxon
.channel
) == channel
) &&
906 (priv
->band
== band
))
909 priv
->staging_rxon
.channel
= cpu_to_le16(channel
);
910 if (band
== IEEE80211_BAND_5GHZ
)
911 priv
->staging_rxon
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
913 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
917 IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel
, band
);
923 * iwl4965_check_rxon_cmd - validate RXON structure is valid
925 * NOTE: This is really only useful during development and can eventually
926 * be #ifdef'd out once the driver is stable and folks aren't actively
929 static int iwl4965_check_rxon_cmd(struct iwl4965_rxon_cmd
*rxon
)
934 if (rxon
->flags
& RXON_FLG_BAND_24G_MSK
) {
935 error
|= le32_to_cpu(rxon
->flags
&
936 (RXON_FLG_TGJ_NARROW_BAND_MSK
|
937 RXON_FLG_RADAR_DETECT_MSK
));
939 IWL_WARNING("check 24G fields %d | %d\n",
942 error
|= (rxon
->flags
& RXON_FLG_SHORT_SLOT_MSK
) ?
943 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK
);
945 IWL_WARNING("check 52 fields %d | %d\n",
947 error
|= le32_to_cpu(rxon
->flags
& RXON_FLG_CCK_MSK
);
949 IWL_WARNING("check 52 CCK %d | %d\n",
952 error
|= (rxon
->node_addr
[0] | rxon
->bssid_addr
[0]) & 0x1;
954 IWL_WARNING("check mac addr %d | %d\n", counter
++, error
);
956 /* make sure basic rates 6Mbps and 1Mbps are supported */
957 error
|= (((rxon
->ofdm_basic_rates
& IWL_RATE_6M_MASK
) == 0) &&
958 ((rxon
->cck_basic_rates
& IWL_RATE_1M_MASK
) == 0));
960 IWL_WARNING("check basic rate %d | %d\n", counter
++, error
);
962 error
|= (le16_to_cpu(rxon
->assoc_id
) > 2007);
964 IWL_WARNING("check assoc id %d | %d\n", counter
++, error
);
966 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
))
967 == (RXON_FLG_CCK_MSK
| RXON_FLG_SHORT_SLOT_MSK
));
969 IWL_WARNING("check CCK and short slot %d | %d\n",
972 error
|= ((rxon
->flags
& (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
))
973 == (RXON_FLG_CCK_MSK
| RXON_FLG_AUTO_DETECT_MSK
));
975 IWL_WARNING("check CCK & auto detect %d | %d\n",
978 error
|= ((rxon
->flags
& (RXON_FLG_AUTO_DETECT_MSK
|
979 RXON_FLG_TGG_PROTECT_MSK
)) == RXON_FLG_TGG_PROTECT_MSK
);
981 IWL_WARNING("check TGG and auto detect %d | %d\n",
985 IWL_WARNING("Tuning to channel %d\n",
986 le16_to_cpu(rxon
->channel
));
989 IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
996 * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
997 * @priv: staging_rxon is compared to active_rxon
999 * If the RXON structure is changing enough to require a new tune,
1000 * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
1001 * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
1003 static int iwl4965_full_rxon_required(struct iwl_priv
*priv
)
1006 /* These items are only settable from the full RXON command */
1007 if (!(priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) ||
1008 compare_ether_addr(priv
->staging_rxon
.bssid_addr
,
1009 priv
->active_rxon
.bssid_addr
) ||
1010 compare_ether_addr(priv
->staging_rxon
.node_addr
,
1011 priv
->active_rxon
.node_addr
) ||
1012 compare_ether_addr(priv
->staging_rxon
.wlap_bssid_addr
,
1013 priv
->active_rxon
.wlap_bssid_addr
) ||
1014 (priv
->staging_rxon
.dev_type
!= priv
->active_rxon
.dev_type
) ||
1015 (priv
->staging_rxon
.channel
!= priv
->active_rxon
.channel
) ||
1016 (priv
->staging_rxon
.air_propagation
!=
1017 priv
->active_rxon
.air_propagation
) ||
1018 (priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
!=
1019 priv
->active_rxon
.ofdm_ht_single_stream_basic_rates
) ||
1020 (priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
!=
1021 priv
->active_rxon
.ofdm_ht_dual_stream_basic_rates
) ||
1022 (priv
->staging_rxon
.rx_chain
!= priv
->active_rxon
.rx_chain
) ||
1023 (priv
->staging_rxon
.assoc_id
!= priv
->active_rxon
.assoc_id
))
1026 /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
1027 * be updated with the RXON_ASSOC command -- however only some
1028 * flag transitions are allowed using RXON_ASSOC */
1030 /* Check if we are not switching bands */
1031 if ((priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) !=
1032 (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
))
1035 /* Check if we are switching association toggle */
1036 if ((priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) !=
1037 (priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
))
1043 static int iwl4965_send_rxon_assoc(struct iwl_priv
*priv
)
1046 struct iwl4965_rx_packet
*res
= NULL
;
1047 struct iwl4965_rxon_assoc_cmd rxon_assoc
;
1048 struct iwl4965_host_cmd cmd
= {
1049 .id
= REPLY_RXON_ASSOC
,
1050 .len
= sizeof(rxon_assoc
),
1051 .meta
.flags
= CMD_WANT_SKB
,
1052 .data
= &rxon_assoc
,
1054 const struct iwl4965_rxon_cmd
*rxon1
= &priv
->staging_rxon
;
1055 const struct iwl4965_rxon_cmd
*rxon2
= &priv
->active_rxon
;
1057 if ((rxon1
->flags
== rxon2
->flags
) &&
1058 (rxon1
->filter_flags
== rxon2
->filter_flags
) &&
1059 (rxon1
->cck_basic_rates
== rxon2
->cck_basic_rates
) &&
1060 (rxon1
->ofdm_ht_single_stream_basic_rates
==
1061 rxon2
->ofdm_ht_single_stream_basic_rates
) &&
1062 (rxon1
->ofdm_ht_dual_stream_basic_rates
==
1063 rxon2
->ofdm_ht_dual_stream_basic_rates
) &&
1064 (rxon1
->rx_chain
== rxon2
->rx_chain
) &&
1065 (rxon1
->ofdm_basic_rates
== rxon2
->ofdm_basic_rates
)) {
1066 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
1070 rxon_assoc
.flags
= priv
->staging_rxon
.flags
;
1071 rxon_assoc
.filter_flags
= priv
->staging_rxon
.filter_flags
;
1072 rxon_assoc
.ofdm_basic_rates
= priv
->staging_rxon
.ofdm_basic_rates
;
1073 rxon_assoc
.cck_basic_rates
= priv
->staging_rxon
.cck_basic_rates
;
1074 rxon_assoc
.reserved
= 0;
1075 rxon_assoc
.ofdm_ht_single_stream_basic_rates
=
1076 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
;
1077 rxon_assoc
.ofdm_ht_dual_stream_basic_rates
=
1078 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
;
1079 rxon_assoc
.rx_chain_select_flags
= priv
->staging_rxon
.rx_chain
;
1081 rc
= iwl4965_send_cmd_sync(priv
, &cmd
);
1085 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1086 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1087 IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n");
1091 priv
->alloc_rxb_skb
--;
1092 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1098 * iwl4965_commit_rxon - commit staging_rxon to hardware
1100 * The RXON command in staging_rxon is committed to the hardware and
1101 * the active_rxon structure is updated with the new data. This
1102 * function correctly transitions out of the RXON_ASSOC_MSK state if
1103 * a HW tune is required based on the RXON structure changes.
1105 static int iwl4965_commit_rxon(struct iwl_priv
*priv
)
1107 /* cast away the const for active_rxon in this function */
1108 struct iwl4965_rxon_cmd
*active_rxon
= (void *)&priv
->active_rxon
;
1109 DECLARE_MAC_BUF(mac
);
1112 if (!iwl4965_is_alive(priv
))
1115 /* always get timestamp with Rx frame */
1116 priv
->staging_rxon
.flags
|= RXON_FLG_TSF2HOST_MSK
;
1118 rc
= iwl4965_check_rxon_cmd(&priv
->staging_rxon
);
1120 IWL_ERROR("Invalid RXON configuration. Not committing.\n");
1124 /* If we don't need to send a full RXON, we can use
1125 * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
1126 * and other flags for the current radio configuration. */
1127 if (!iwl4965_full_rxon_required(priv
)) {
1128 rc
= iwl4965_send_rxon_assoc(priv
);
1130 IWL_ERROR("Error setting RXON_ASSOC "
1131 "configuration (%d).\n", rc
);
1135 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
1140 /* station table will be cleared */
1141 priv
->assoc_station_added
= 0;
1143 #ifdef CONFIG_IWL4965_SENSITIVITY
1144 priv
->sensitivity_data
.state
= IWL_SENS_CALIB_NEED_REINIT
;
1145 if (!priv
->error_recovering
)
1146 priv
->start_calib
= 0;
1148 iwl4965_init_sensitivity(priv
, CMD_ASYNC
, 1);
1149 #endif /* CONFIG_IWL4965_SENSITIVITY */
1151 /* If we are currently associated and the new config requires
1152 * an RXON_ASSOC and the new config wants the associated mask enabled,
1153 * we must clear the associated from the active configuration
1154 * before we apply the new config */
1155 if (iwl4965_is_associated(priv
) &&
1156 (priv
->staging_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
)) {
1157 IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
1158 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
1160 rc
= iwl4965_send_cmd_pdu(priv
, REPLY_RXON
,
1161 sizeof(struct iwl4965_rxon_cmd
),
1162 &priv
->active_rxon
);
1164 /* If the mask clearing failed then we set
1165 * active_rxon back to what it was previously */
1167 active_rxon
->filter_flags
|= RXON_FILTER_ASSOC_MSK
;
1168 IWL_ERROR("Error clearing ASSOC_MSK on current "
1169 "configuration (%d).\n", rc
);
1174 IWL_DEBUG_INFO("Sending RXON\n"
1175 "* with%s RXON_FILTER_ASSOC_MSK\n"
1178 ((priv
->staging_rxon
.filter_flags
&
1179 RXON_FILTER_ASSOC_MSK
) ? "" : "out"),
1180 le16_to_cpu(priv
->staging_rxon
.channel
),
1181 print_mac(mac
, priv
->staging_rxon
.bssid_addr
));
1183 /* Apply the new configuration */
1184 rc
= iwl4965_send_cmd_pdu(priv
, REPLY_RXON
,
1185 sizeof(struct iwl4965_rxon_cmd
), &priv
->staging_rxon
);
1187 IWL_ERROR("Error setting new configuration (%d).\n", rc
);
1191 iwl4965_clear_stations_table(priv
);
1193 #ifdef CONFIG_IWL4965_SENSITIVITY
1194 if (!priv
->error_recovering
)
1195 priv
->start_calib
= 0;
1197 priv
->sensitivity_data
.state
= IWL_SENS_CALIB_NEED_REINIT
;
1198 iwl4965_init_sensitivity(priv
, CMD_ASYNC
, 1);
1199 #endif /* CONFIG_IWL4965_SENSITIVITY */
1201 memcpy(active_rxon
, &priv
->staging_rxon
, sizeof(*active_rxon
));
1203 /* If we issue a new RXON command which required a tune then we must
1204 * send a new TXPOWER command or we won't be able to Tx any frames */
1205 rc
= iwl4965_hw_reg_send_txpower(priv
);
1207 IWL_ERROR("Error setting Tx power (%d).\n", rc
);
1211 /* Add the broadcast address so we can send broadcast frames */
1212 if (iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0) ==
1213 IWL_INVALID_STATION
) {
1214 IWL_ERROR("Error adding BROADCAST address for transmit.\n");
1218 /* If we have set the ASSOC_MSK and we are in BSS mode then
1219 * add the IWL_AP_ID to the station rate table */
1220 if (iwl4965_is_associated(priv
) &&
1221 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)) {
1222 if (iwl4965_rxon_add_station(priv
, priv
->active_rxon
.bssid_addr
, 1)
1223 == IWL_INVALID_STATION
) {
1224 IWL_ERROR("Error adding AP address for transmit.\n");
1227 priv
->assoc_station_added
= 1;
1233 static int iwl4965_send_bt_config(struct iwl_priv
*priv
)
1235 struct iwl4965_bt_cmd bt_cmd
= {
1243 return iwl4965_send_cmd_pdu(priv
, REPLY_BT_CONFIG
,
1244 sizeof(struct iwl4965_bt_cmd
), &bt_cmd
);
1247 static int iwl4965_send_scan_abort(struct iwl_priv
*priv
)
1250 struct iwl4965_rx_packet
*res
;
1251 struct iwl4965_host_cmd cmd
= {
1252 .id
= REPLY_SCAN_ABORT_CMD
,
1253 .meta
.flags
= CMD_WANT_SKB
,
1256 /* If there isn't a scan actively going on in the hardware
1257 * then we are in between scan bands and not actually
1258 * actively scanning, so don't send the abort command */
1259 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1260 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1264 rc
= iwl4965_send_cmd_sync(priv
, &cmd
);
1266 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1270 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1271 if (res
->u
.status
!= CAN_ABORT_STATUS
) {
1272 /* The scan abort will return 1 for success or
1273 * 2 for "failure". A failure condition can be
1274 * due to simply not being in an active scan which
1275 * can occur if we send the scan abort before we
1276 * the microcode has notified us that a scan is
1278 IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res
->u
.status
);
1279 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
1280 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
1283 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1288 static int iwl4965_card_state_sync_callback(struct iwl_priv
*priv
,
1289 struct iwl4965_cmd
*cmd
,
1290 struct sk_buff
*skb
)
1298 * Use: Sets the device's internal card state to enable, disable, or halt
1300 * When in the 'enable' state the card operates as normal.
1301 * When in the 'disable' state, the card enters into a low power mode.
1302 * When in the 'halt' state, the card is shut down and must be fully
1303 * restarted to come back on.
1305 static int iwl4965_send_card_state(struct iwl_priv
*priv
, u32 flags
, u8 meta_flag
)
1307 struct iwl4965_host_cmd cmd
= {
1308 .id
= REPLY_CARD_STATE_CMD
,
1311 .meta
.flags
= meta_flag
,
1314 if (meta_flag
& CMD_ASYNC
)
1315 cmd
.meta
.u
.callback
= iwl4965_card_state_sync_callback
;
1317 return iwl4965_send_cmd(priv
, &cmd
);
1320 static int iwl4965_add_sta_sync_callback(struct iwl_priv
*priv
,
1321 struct iwl4965_cmd
*cmd
, struct sk_buff
*skb
)
1323 struct iwl4965_rx_packet
*res
= NULL
;
1326 IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n");
1330 res
= (struct iwl4965_rx_packet
*)skb
->data
;
1331 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1332 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1337 switch (res
->u
.add_sta
.status
) {
1338 case ADD_STA_SUCCESS_MSK
:
1344 /* We didn't cache the SKB; let the caller free it */
1348 int iwl4965_send_add_station(struct iwl_priv
*priv
,
1349 struct iwl4965_addsta_cmd
*sta
, u8 flags
)
1351 struct iwl4965_rx_packet
*res
= NULL
;
1353 struct iwl4965_host_cmd cmd
= {
1354 .id
= REPLY_ADD_STA
,
1355 .len
= sizeof(struct iwl4965_addsta_cmd
),
1356 .meta
.flags
= flags
,
1360 if (flags
& CMD_ASYNC
)
1361 cmd
.meta
.u
.callback
= iwl4965_add_sta_sync_callback
;
1363 cmd
.meta
.flags
|= CMD_WANT_SKB
;
1365 rc
= iwl4965_send_cmd(priv
, &cmd
);
1367 if (rc
|| (flags
& CMD_ASYNC
))
1370 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
1371 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
1372 IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
1378 switch (res
->u
.add_sta
.status
) {
1379 case ADD_STA_SUCCESS_MSK
:
1380 IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
1384 IWL_WARNING("REPLY_ADD_STA failed\n");
1389 priv
->alloc_rxb_skb
--;
1390 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
1395 static int iwl4965_update_sta_key_info(struct iwl_priv
*priv
,
1396 struct ieee80211_key_conf
*keyconf
,
1399 unsigned long flags
;
1400 __le16 key_flags
= 0;
1402 switch (keyconf
->alg
) {
1404 key_flags
|= STA_KEY_FLG_CCMP
;
1405 key_flags
|= cpu_to_le16(
1406 keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
1407 key_flags
&= ~STA_KEY_FLG_INVALID
;
1414 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1415 priv
->stations
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
1416 priv
->stations
[sta_id
].keyinfo
.keylen
= keyconf
->keylen
;
1417 memcpy(priv
->stations
[sta_id
].keyinfo
.key
, keyconf
->key
,
1420 memcpy(priv
->stations
[sta_id
].sta
.key
.key
, keyconf
->key
,
1422 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
1423 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1424 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1426 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1428 IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
1429 iwl4965_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, 0);
1433 static int iwl4965_clear_sta_key_info(struct iwl_priv
*priv
, u8 sta_id
)
1435 unsigned long flags
;
1437 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1438 memset(&priv
->stations
[sta_id
].keyinfo
, 0, sizeof(struct iwl4965_hw_key
));
1439 memset(&priv
->stations
[sta_id
].sta
.key
, 0, sizeof(struct iwl4965_keyinfo
));
1440 priv
->stations
[sta_id
].sta
.key
.key_flags
= STA_KEY_FLG_NO_ENC
;
1441 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
1442 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1443 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1445 IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
1446 iwl4965_send_add_station(priv
, &priv
->stations
[sta_id
].sta
, 0);
1450 static void iwl4965_clear_free_frames(struct iwl_priv
*priv
)
1452 struct list_head
*element
;
1454 IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
1455 priv
->frames_count
);
1457 while (!list_empty(&priv
->free_frames
)) {
1458 element
= priv
->free_frames
.next
;
1460 kfree(list_entry(element
, struct iwl4965_frame
, list
));
1461 priv
->frames_count
--;
1464 if (priv
->frames_count
) {
1465 IWL_WARNING("%d frames still in use. Did we lose one?\n",
1466 priv
->frames_count
);
1467 priv
->frames_count
= 0;
1471 static struct iwl4965_frame
*iwl4965_get_free_frame(struct iwl_priv
*priv
)
1473 struct iwl4965_frame
*frame
;
1474 struct list_head
*element
;
1475 if (list_empty(&priv
->free_frames
)) {
1476 frame
= kzalloc(sizeof(*frame
), GFP_KERNEL
);
1478 IWL_ERROR("Could not allocate frame!\n");
1482 priv
->frames_count
++;
1486 element
= priv
->free_frames
.next
;
1488 return list_entry(element
, struct iwl4965_frame
, list
);
1491 static void iwl4965_free_frame(struct iwl_priv
*priv
, struct iwl4965_frame
*frame
)
1493 memset(frame
, 0, sizeof(*frame
));
1494 list_add(&frame
->list
, &priv
->free_frames
);
1497 unsigned int iwl4965_fill_beacon_frame(struct iwl_priv
*priv
,
1498 struct ieee80211_hdr
*hdr
,
1499 const u8
*dest
, int left
)
1502 if (!iwl4965_is_associated(priv
) || !priv
->ibss_beacon
||
1503 ((priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) &&
1504 (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
)))
1507 if (priv
->ibss_beacon
->len
> left
)
1510 memcpy(hdr
, priv
->ibss_beacon
->data
, priv
->ibss_beacon
->len
);
1512 return priv
->ibss_beacon
->len
;
1515 static u8
iwl4965_rate_get_lowest_plcp(int rate_mask
)
1519 for (i
= IWL_RATE_1M_INDEX
; i
!= IWL_RATE_INVALID
;
1520 i
= iwl4965_rates
[i
].next_ieee
) {
1521 if (rate_mask
& (1 << i
))
1522 return iwl4965_rates
[i
].plcp
;
1525 return IWL_RATE_INVALID
;
1528 static int iwl4965_send_beacon_cmd(struct iwl_priv
*priv
)
1530 struct iwl4965_frame
*frame
;
1531 unsigned int frame_size
;
1535 frame
= iwl4965_get_free_frame(priv
);
1538 IWL_ERROR("Could not obtain free frame buffer for beacon "
1543 if (!(priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)) {
1544 rate
= iwl4965_rate_get_lowest_plcp(priv
->active_rate_basic
&
1546 if (rate
== IWL_INVALID_RATE
)
1547 rate
= IWL_RATE_6M_PLCP
;
1549 rate
= iwl4965_rate_get_lowest_plcp(priv
->active_rate_basic
& 0xF);
1550 if (rate
== IWL_INVALID_RATE
)
1551 rate
= IWL_RATE_1M_PLCP
;
1554 frame_size
= iwl4965_hw_get_beacon_cmd(priv
, frame
, rate
);
1556 rc
= iwl4965_send_cmd_pdu(priv
, REPLY_TX_BEACON
, frame_size
,
1559 iwl4965_free_frame(priv
, frame
);
1564 /******************************************************************************
1566 * Misc. internal state and helper functions
1568 ******************************************************************************/
1570 static void iwl4965_unset_hw_setting(struct iwl_priv
*priv
)
1572 if (priv
->hw_setting
.shared_virt
)
1573 pci_free_consistent(priv
->pci_dev
,
1574 sizeof(struct iwl4965_shared
),
1575 priv
->hw_setting
.shared_virt
,
1576 priv
->hw_setting
.shared_phys
);
1580 * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field
1582 * return : set the bit for each supported rate insert in ie
1584 static u16
iwl4965_supported_rate_to_ie(u8
*ie
, u16 supported_rate
,
1585 u16 basic_rate
, int *left
)
1587 u16 ret_rates
= 0, bit
;
1592 for (bit
= 1, i
= 0; i
< IWL_RATE_COUNT
; i
++, bit
<<= 1) {
1593 if (bit
& supported_rate
) {
1595 rates
[*cnt
] = iwl4965_rates
[i
].ieee
|
1596 ((bit
& basic_rate
) ? 0x80 : 0x00);
1600 (*cnt
>= IWL_SUPPORTED_RATES_IE_LEN
))
1609 * iwl4965_fill_probe_req - fill in all required fields and IE for probe request
1611 static u16
iwl4965_fill_probe_req(struct iwl_priv
*priv
,
1612 enum ieee80211_band band
,
1613 struct ieee80211_mgmt
*frame
,
1614 int left
, int is_direct
)
1618 u16 active_rates
, ret_rates
, cck_rates
, active_rate_basic
;
1619 #ifdef CONFIG_IWL4965_HT
1620 const struct ieee80211_supported_band
*sband
=
1621 iwl4965_get_hw_mode(priv
, band
);
1622 #endif /* CONFIG_IWL4965_HT */
1624 /* Make sure there is enough space for the probe request,
1625 * two mandatory IEs and the data */
1631 frame
->frame_control
= cpu_to_le16(IEEE80211_STYPE_PROBE_REQ
);
1632 memcpy(frame
->da
, iwl4965_broadcast_addr
, ETH_ALEN
);
1633 memcpy(frame
->sa
, priv
->mac_addr
, ETH_ALEN
);
1634 memcpy(frame
->bssid
, iwl4965_broadcast_addr
, ETH_ALEN
);
1635 frame
->seq_ctrl
= 0;
1637 /* fill in our indirect SSID IE */
1644 pos
= &(frame
->u
.probe_req
.variable
[0]);
1645 *pos
++ = WLAN_EID_SSID
;
1648 /* fill in our direct SSID IE... */
1651 left
-= 2 + priv
->essid_len
;
1654 /* ... fill it in... */
1655 *pos
++ = WLAN_EID_SSID
;
1656 *pos
++ = priv
->essid_len
;
1657 memcpy(pos
, priv
->essid
, priv
->essid_len
);
1658 pos
+= priv
->essid_len
;
1659 len
+= 2 + priv
->essid_len
;
1662 /* fill in supported rate */
1668 /* ... fill it in... */
1669 *pos
++ = WLAN_EID_SUPP_RATES
;
1672 /* exclude 60M rate */
1673 active_rates
= priv
->rates_mask
;
1674 active_rates
&= ~IWL_RATE_60M_MASK
;
1676 active_rate_basic
= active_rates
& IWL_BASIC_RATES_MASK
;
1678 cck_rates
= IWL_CCK_RATES_MASK
& active_rates
;
1679 ret_rates
= iwl4965_supported_rate_to_ie(pos
, cck_rates
,
1680 active_rate_basic
, &left
);
1681 active_rates
&= ~ret_rates
;
1683 ret_rates
= iwl4965_supported_rate_to_ie(pos
, active_rates
,
1684 active_rate_basic
, &left
);
1685 active_rates
&= ~ret_rates
;
1689 if (active_rates
== 0)
1692 /* fill in supported extended rate */
1697 /* ... fill it in... */
1698 *pos
++ = WLAN_EID_EXT_SUPP_RATES
;
1700 iwl4965_supported_rate_to_ie(pos
, active_rates
,
1701 active_rate_basic
, &left
);
1705 #ifdef CONFIG_IWL4965_HT
1706 if (sband
&& sband
->ht_info
.ht_supported
) {
1707 struct ieee80211_ht_cap
*ht_cap
;
1709 *pos
++ = WLAN_EID_HT_CAPABILITY
;
1710 *pos
++ = sizeof(struct ieee80211_ht_cap
);
1711 ht_cap
= (struct ieee80211_ht_cap
*)pos
;
1712 ht_cap
->cap_info
= cpu_to_le16(sband
->ht_info
.cap
);
1713 memcpy(ht_cap
->supp_mcs_set
, sband
->ht_info
.supp_mcs_set
, 16);
1714 ht_cap
->ampdu_params_info
=(sband
->ht_info
.ampdu_factor
&
1715 IEEE80211_HT_CAP_AMPDU_FACTOR
) |
1716 ((sband
->ht_info
.ampdu_density
<< 2) &
1717 IEEE80211_HT_CAP_AMPDU_DENSITY
);
1718 len
+= 2 + sizeof(struct ieee80211_ht_cap
);
1720 #endif /*CONFIG_IWL4965_HT */
1729 static int iwl4965_send_qos_params_command(struct iwl_priv
*priv
,
1730 struct iwl4965_qosparam_cmd
*qos
)
1733 return iwl4965_send_cmd_pdu(priv
, REPLY_QOS_PARAM
,
1734 sizeof(struct iwl4965_qosparam_cmd
), qos
);
1737 static void iwl4965_reset_qos(struct iwl_priv
*priv
)
1743 unsigned long flags
;
1746 spin_lock_irqsave(&priv
->lock
, flags
);
1747 priv
->qos_data
.qos_active
= 0;
1749 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) {
1750 if (priv
->qos_data
.qos_enable
)
1751 priv
->qos_data
.qos_active
= 1;
1752 if (!(priv
->active_rate
& 0xfff0)) {
1756 } else if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
1757 if (priv
->qos_data
.qos_enable
)
1758 priv
->qos_data
.qos_active
= 1;
1759 } else if (!(priv
->staging_rxon
.flags
& RXON_FLG_SHORT_SLOT_MSK
)) {
1764 if (priv
->qos_data
.qos_active
)
1767 priv
->qos_data
.def_qos_parm
.ac
[0].cw_min
= cpu_to_le16(cw_min
);
1768 priv
->qos_data
.def_qos_parm
.ac
[0].cw_max
= cpu_to_le16(cw_max
);
1769 priv
->qos_data
.def_qos_parm
.ac
[0].aifsn
= aifs
;
1770 priv
->qos_data
.def_qos_parm
.ac
[0].edca_txop
= 0;
1771 priv
->qos_data
.def_qos_parm
.ac
[0].reserved1
= 0;
1773 if (priv
->qos_data
.qos_active
) {
1775 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
= cpu_to_le16(cw_min
);
1776 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
= cpu_to_le16(cw_max
);
1777 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 7;
1778 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
1779 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1782 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1783 cpu_to_le16((cw_min
+ 1) / 2 - 1);
1784 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1785 cpu_to_le16(cw_max
);
1786 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
1788 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1791 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1793 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1796 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1797 cpu_to_le16((cw_min
+ 1) / 4 - 1);
1798 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1799 cpu_to_le16((cw_max
+ 1) / 2 - 1);
1800 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
1801 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1803 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1806 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
1809 for (i
= 1; i
< 4; i
++) {
1810 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
1811 cpu_to_le16(cw_min
);
1812 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
1813 cpu_to_le16(cw_max
);
1814 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= aifs
;
1815 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
1816 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
1819 IWL_DEBUG_QOS("set QoS to default \n");
1821 spin_unlock_irqrestore(&priv
->lock
, flags
);
1824 static void iwl4965_activate_qos(struct iwl_priv
*priv
, u8 force
)
1826 unsigned long flags
;
1828 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
1831 if (!priv
->qos_data
.qos_enable
)
1834 spin_lock_irqsave(&priv
->lock
, flags
);
1835 priv
->qos_data
.def_qos_parm
.qos_flags
= 0;
1837 if (priv
->qos_data
.qos_cap
.q_AP
.queue_request
&&
1838 !priv
->qos_data
.qos_cap
.q_AP
.txop_request
)
1839 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1840 QOS_PARAM_FLG_TXOP_TYPE_MSK
;
1841 if (priv
->qos_data
.qos_active
)
1842 priv
->qos_data
.def_qos_parm
.qos_flags
|=
1843 QOS_PARAM_FLG_UPDATE_EDCA_MSK
;
1845 #ifdef CONFIG_IWL4965_HT
1846 if (priv
->current_ht_config
.is_ht
)
1847 priv
->qos_data
.def_qos_parm
.qos_flags
|= QOS_PARAM_FLG_TGN_MSK
;
1848 #endif /* CONFIG_IWL4965_HT */
1850 spin_unlock_irqrestore(&priv
->lock
, flags
);
1852 if (force
|| iwl4965_is_associated(priv
)) {
1853 IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
1854 priv
->qos_data
.qos_active
,
1855 priv
->qos_data
.def_qos_parm
.qos_flags
);
1857 iwl4965_send_qos_params_command(priv
,
1858 &(priv
->qos_data
.def_qos_parm
));
1863 * Power management (not Tx power!) functions
1865 #define MSEC_TO_USEC 1024
1867 #define NOSLP __constant_cpu_to_le16(0), 0, 0
1868 #define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
1869 #define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
1870 #define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
1871 __constant_cpu_to_le32(X1), \
1872 __constant_cpu_to_le32(X2), \
1873 __constant_cpu_to_le32(X3), \
1874 __constant_cpu_to_le32(X4)}
1877 /* default power management (not Tx power) table values */
1879 static struct iwl4965_power_vec_entry range_0
[IWL_POWER_AC
] = {
1880 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1881 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
1882 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
1883 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
1884 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
1885 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
1889 static struct iwl4965_power_vec_entry range_1
[IWL_POWER_AC
] = {
1890 {{NOSLP
, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
1891 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
1892 SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
1893 {{SLP
, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
1894 SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
1895 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
1896 SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
1897 {{SLP
, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
1898 {{SLP
, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
1899 SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
1902 int iwl4965_power_init_handle(struct iwl_priv
*priv
)
1905 struct iwl4965_power_mgr
*pow_data
;
1906 int size
= sizeof(struct iwl4965_power_vec_entry
) * IWL_POWER_AC
;
1909 IWL_DEBUG_POWER("Initialize power \n");
1911 pow_data
= &(priv
->power_data
);
1913 memset(pow_data
, 0, sizeof(*pow_data
));
1915 pow_data
->active_index
= IWL_POWER_RANGE_0
;
1916 pow_data
->dtim_val
= 0xffff;
1918 memcpy(&pow_data
->pwr_range_0
[0], &range_0
[0], size
);
1919 memcpy(&pow_data
->pwr_range_1
[0], &range_1
[0], size
);
1921 rc
= pci_read_config_word(priv
->pci_dev
, PCI_LINK_CTRL
, &pci_pm
);
1925 struct iwl4965_powertable_cmd
*cmd
;
1927 IWL_DEBUG_POWER("adjust power command flags\n");
1929 for (i
= 0; i
< IWL_POWER_AC
; i
++) {
1930 cmd
= &pow_data
->pwr_range_0
[i
].cmd
;
1933 cmd
->flags
&= ~IWL_POWER_PCI_PM_MSK
;
1935 cmd
->flags
|= IWL_POWER_PCI_PM_MSK
;
1941 static int iwl4965_update_power_cmd(struct iwl_priv
*priv
,
1942 struct iwl4965_powertable_cmd
*cmd
, u32 mode
)
1947 struct iwl4965_power_vec_entry
*range
;
1949 struct iwl4965_power_mgr
*pow_data
;
1951 if (mode
> IWL_POWER_INDEX_5
) {
1952 IWL_DEBUG_POWER("Error invalid power mode \n");
1955 pow_data
= &(priv
->power_data
);
1957 if (pow_data
->active_index
== IWL_POWER_RANGE_0
)
1958 range
= &pow_data
->pwr_range_0
[0];
1960 range
= &pow_data
->pwr_range_1
[1];
1962 memcpy(cmd
, &range
[mode
].cmd
, sizeof(struct iwl4965_powertable_cmd
));
1964 #ifdef IWL_MAC80211_DISABLE
1965 if (priv
->assoc_network
!= NULL
) {
1966 unsigned long flags
;
1968 period
= priv
->assoc_network
->tim
.tim_period
;
1970 #endif /*IWL_MAC80211_DISABLE */
1971 skip
= range
[mode
].no_dtim
;
1980 cmd
->flags
&= ~IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1982 __le32 slp_itrvl
= cmd
->sleep_interval
[IWL_POWER_VEC_SIZE
- 1];
1983 max_sleep
= (le32_to_cpu(slp_itrvl
) / period
) * period
;
1984 cmd
->flags
|= IWL_POWER_SLEEP_OVER_DTIM_MSK
;
1987 for (i
= 0; i
< IWL_POWER_VEC_SIZE
; i
++) {
1988 if (le32_to_cpu(cmd
->sleep_interval
[i
]) > max_sleep
)
1989 cmd
->sleep_interval
[i
] = cpu_to_le32(max_sleep
);
1992 IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd
->flags
);
1993 IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd
->tx_data_timeout
));
1994 IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd
->rx_data_timeout
));
1995 IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
1996 le32_to_cpu(cmd
->sleep_interval
[0]),
1997 le32_to_cpu(cmd
->sleep_interval
[1]),
1998 le32_to_cpu(cmd
->sleep_interval
[2]),
1999 le32_to_cpu(cmd
->sleep_interval
[3]),
2000 le32_to_cpu(cmd
->sleep_interval
[4]));
2005 static int iwl4965_send_power_mode(struct iwl_priv
*priv
, u32 mode
)
2007 u32
uninitialized_var(final_mode
);
2009 struct iwl4965_powertable_cmd cmd
;
2011 /* If on battery, set to 3,
2012 * if plugged into AC power, set to CAM ("continuously aware mode"),
2013 * else user level */
2015 case IWL_POWER_BATTERY
:
2016 final_mode
= IWL_POWER_INDEX_3
;
2019 final_mode
= IWL_POWER_MODE_CAM
;
2026 cmd
.keep_alive_beacons
= 0;
2028 iwl4965_update_power_cmd(priv
, &cmd
, final_mode
);
2030 rc
= iwl4965_send_cmd_pdu(priv
, POWER_TABLE_CMD
, sizeof(cmd
), &cmd
);
2032 if (final_mode
== IWL_POWER_MODE_CAM
)
2033 clear_bit(STATUS_POWER_PMI
, &priv
->status
);
2035 set_bit(STATUS_POWER_PMI
, &priv
->status
);
2040 int iwl4965_is_network_packet(struct iwl_priv
*priv
, struct ieee80211_hdr
*header
)
2042 /* Filter incoming packets to determine if they are targeted toward
2043 * this network, discarding packets coming from ourselves */
2044 switch (priv
->iw_mode
) {
2045 case IEEE80211_IF_TYPE_IBSS
: /* Header: Dest. | Source | BSSID */
2046 /* packets from our adapter are dropped (echo) */
2047 if (!compare_ether_addr(header
->addr2
, priv
->mac_addr
))
2049 /* {broad,multi}cast packets to our IBSS go through */
2050 if (is_multicast_ether_addr(header
->addr1
))
2051 return !compare_ether_addr(header
->addr3
, priv
->bssid
);
2052 /* packets to our adapter go through */
2053 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
2054 case IEEE80211_IF_TYPE_STA
: /* Header: Dest. | AP{BSSID} | Source */
2055 /* packets from our adapter are dropped (echo) */
2056 if (!compare_ether_addr(header
->addr3
, priv
->mac_addr
))
2058 /* {broad,multi}cast packets to our BSS go through */
2059 if (is_multicast_ether_addr(header
->addr1
))
2060 return !compare_ether_addr(header
->addr2
, priv
->bssid
);
2061 /* packets to our adapter go through */
2062 return !compare_ether_addr(header
->addr1
, priv
->mac_addr
);
2068 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
2070 static const char *iwl4965_get_tx_fail_reason(u32 status
)
2072 switch (status
& TX_STATUS_MSK
) {
2073 case TX_STATUS_SUCCESS
:
2075 TX_STATUS_ENTRY(SHORT_LIMIT
);
2076 TX_STATUS_ENTRY(LONG_LIMIT
);
2077 TX_STATUS_ENTRY(FIFO_UNDERRUN
);
2078 TX_STATUS_ENTRY(MGMNT_ABORT
);
2079 TX_STATUS_ENTRY(NEXT_FRAG
);
2080 TX_STATUS_ENTRY(LIFE_EXPIRE
);
2081 TX_STATUS_ENTRY(DEST_PS
);
2082 TX_STATUS_ENTRY(ABORTED
);
2083 TX_STATUS_ENTRY(BT_RETRY
);
2084 TX_STATUS_ENTRY(STA_INVALID
);
2085 TX_STATUS_ENTRY(FRAG_DROPPED
);
2086 TX_STATUS_ENTRY(TID_DISABLE
);
2087 TX_STATUS_ENTRY(FRAME_FLUSHED
);
2088 TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL
);
2089 TX_STATUS_ENTRY(TX_LOCKED
);
2090 TX_STATUS_ENTRY(NO_BEACON_ON_RADAR
);
2097 * iwl4965_scan_cancel - Cancel any currently executing HW scan
2099 * NOTE: priv->mutex is not required before calling this function
2101 static int iwl4965_scan_cancel(struct iwl_priv
*priv
)
2103 if (!test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
2104 clear_bit(STATUS_SCANNING
, &priv
->status
);
2108 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
2109 if (!test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2110 IWL_DEBUG_SCAN("Queuing scan abort.\n");
2111 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
2112 queue_work(priv
->workqueue
, &priv
->abort_scan
);
2115 IWL_DEBUG_SCAN("Scan abort already in progress.\n");
2117 return test_bit(STATUS_SCANNING
, &priv
->status
);
2124 * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan
2125 * @ms: amount of time to wait (in milliseconds) for scan to abort
2127 * NOTE: priv->mutex must be held before calling this function
2129 static int iwl4965_scan_cancel_timeout(struct iwl_priv
*priv
, unsigned long ms
)
2131 unsigned long now
= jiffies
;
2134 ret
= iwl4965_scan_cancel(priv
);
2136 mutex_unlock(&priv
->mutex
);
2137 while (!time_after(jiffies
, now
+ msecs_to_jiffies(ms
)) &&
2138 test_bit(STATUS_SCANNING
, &priv
->status
))
2140 mutex_lock(&priv
->mutex
);
2142 return test_bit(STATUS_SCANNING
, &priv
->status
);
2148 static void iwl4965_sequence_reset(struct iwl_priv
*priv
)
2150 /* Reset ieee stats */
2152 /* We don't reset the net_device_stats (ieee->stats) on
2155 priv
->last_seq_num
= -1;
2156 priv
->last_frag_num
= -1;
2157 priv
->last_packet_time
= 0;
2159 iwl4965_scan_cancel(priv
);
2162 #define MAX_UCODE_BEACON_INTERVAL 4096
2163 #define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
2165 static __le16
iwl4965_adjust_beacon_interval(u16 beacon_val
)
2168 u16 beacon_factor
= 0;
2171 (beacon_val
+ MAX_UCODE_BEACON_INTERVAL
)
2172 / MAX_UCODE_BEACON_INTERVAL
;
2173 new_val
= beacon_val
/ beacon_factor
;
2175 return cpu_to_le16(new_val
);
2178 static void iwl4965_setup_rxon_timing(struct iwl_priv
*priv
)
2180 u64 interval_tm_unit
;
2182 unsigned long flags
;
2183 struct ieee80211_conf
*conf
= NULL
;
2186 conf
= ieee80211_get_hw_conf(priv
->hw
);
2188 spin_lock_irqsave(&priv
->lock
, flags
);
2189 priv
->rxon_timing
.timestamp
.dw
[1] = cpu_to_le32(priv
->timestamp1
);
2190 priv
->rxon_timing
.timestamp
.dw
[0] = cpu_to_le32(priv
->timestamp0
);
2192 priv
->rxon_timing
.listen_interval
= INTEL_CONN_LISTEN_INTERVAL
;
2194 tsf
= priv
->timestamp1
;
2195 tsf
= ((tsf
<< 32) | priv
->timestamp0
);
2197 beacon_int
= priv
->beacon_int
;
2198 spin_unlock_irqrestore(&priv
->lock
, flags
);
2200 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) {
2201 if (beacon_int
== 0) {
2202 priv
->rxon_timing
.beacon_interval
= cpu_to_le16(100);
2203 priv
->rxon_timing
.beacon_init_val
= cpu_to_le32(102400);
2205 priv
->rxon_timing
.beacon_interval
=
2206 cpu_to_le16(beacon_int
);
2207 priv
->rxon_timing
.beacon_interval
=
2208 iwl4965_adjust_beacon_interval(
2209 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
2212 priv
->rxon_timing
.atim_window
= 0;
2214 priv
->rxon_timing
.beacon_interval
=
2215 iwl4965_adjust_beacon_interval(conf
->beacon_int
);
2216 /* TODO: we need to get atim_window from upper stack
2217 * for now we set to 0 */
2218 priv
->rxon_timing
.atim_window
= 0;
2222 (le16_to_cpu(priv
->rxon_timing
.beacon_interval
) * 1024);
2223 result
= do_div(tsf
, interval_tm_unit
);
2224 priv
->rxon_timing
.beacon_init_val
=
2225 cpu_to_le32((u32
) ((u64
) interval_tm_unit
- result
));
2228 ("beacon interval %d beacon timer %d beacon tim %d\n",
2229 le16_to_cpu(priv
->rxon_timing
.beacon_interval
),
2230 le32_to_cpu(priv
->rxon_timing
.beacon_init_val
),
2231 le16_to_cpu(priv
->rxon_timing
.atim_window
));
2234 static int iwl4965_scan_initiate(struct iwl_priv
*priv
)
2236 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
2237 IWL_ERROR("APs don't scan.\n");
2241 if (!iwl4965_is_ready_rf(priv
)) {
2242 IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
2246 if (test_bit(STATUS_SCANNING
, &priv
->status
)) {
2247 IWL_DEBUG_SCAN("Scan already in progress.\n");
2251 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
2252 IWL_DEBUG_SCAN("Scan request while abort pending. "
2257 IWL_DEBUG_INFO("Starting scan...\n");
2258 priv
->scan_bands
= 2;
2259 set_bit(STATUS_SCANNING
, &priv
->status
);
2260 priv
->scan_start
= jiffies
;
2261 priv
->scan_pass_start
= priv
->scan_start
;
2263 queue_work(priv
->workqueue
, &priv
->request_scan
);
2268 static int iwl4965_set_rxon_hwcrypto(struct iwl_priv
*priv
, int hw_decrypt
)
2270 struct iwl4965_rxon_cmd
*rxon
= &priv
->staging_rxon
;
2273 rxon
->filter_flags
&= ~RXON_FILTER_DIS_DECRYPT_MSK
;
2275 rxon
->filter_flags
|= RXON_FILTER_DIS_DECRYPT_MSK
;
2280 static void iwl4965_set_flags_for_phymode(struct iwl_priv
*priv
,
2281 enum ieee80211_band band
)
2283 if (band
== IEEE80211_BAND_5GHZ
) {
2284 priv
->staging_rxon
.flags
&=
2285 ~(RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
2286 | RXON_FLG_CCK_MSK
);
2287 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2289 /* Copied from iwl4965_bg_post_associate() */
2290 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
2291 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
2293 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2295 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
2296 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
2298 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
2299 priv
->staging_rxon
.flags
|= RXON_FLG_AUTO_DETECT_MSK
;
2300 priv
->staging_rxon
.flags
&= ~RXON_FLG_CCK_MSK
;
2305 * initialize rxon structure with default values from eeprom
2307 static void iwl4965_connection_init_rx_config(struct iwl_priv
*priv
)
2309 const struct iwl4965_channel_info
*ch_info
;
2311 memset(&priv
->staging_rxon
, 0, sizeof(priv
->staging_rxon
));
2313 switch (priv
->iw_mode
) {
2314 case IEEE80211_IF_TYPE_AP
:
2315 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_AP
;
2318 case IEEE80211_IF_TYPE_STA
:
2319 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_ESS
;
2320 priv
->staging_rxon
.filter_flags
= RXON_FILTER_ACCEPT_GRP_MSK
;
2323 case IEEE80211_IF_TYPE_IBSS
:
2324 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_IBSS
;
2325 priv
->staging_rxon
.flags
= RXON_FLG_SHORT_PREAMBLE_MSK
;
2326 priv
->staging_rxon
.filter_flags
= RXON_FILTER_BCON_AWARE_MSK
|
2327 RXON_FILTER_ACCEPT_GRP_MSK
;
2330 case IEEE80211_IF_TYPE_MNTR
:
2331 priv
->staging_rxon
.dev_type
= RXON_DEV_TYPE_SNIFFER
;
2332 priv
->staging_rxon
.filter_flags
= RXON_FILTER_PROMISC_MSK
|
2333 RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_ACCEPT_GRP_MSK
;
2338 /* TODO: Figure out when short_preamble would be set and cache from
2340 if (!hw_to_local(priv
->hw
)->short_preamble
)
2341 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
2343 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
2346 ch_info
= iwl4965_get_channel_info(priv
, priv
->band
,
2347 le16_to_cpu(priv
->staging_rxon
.channel
));
2350 ch_info
= &priv
->channel_info
[0];
2353 * in some case A channels are all non IBSS
2354 * in this case force B/G channel
2356 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) &&
2357 !(is_channel_ibss(ch_info
)))
2358 ch_info
= &priv
->channel_info
[0];
2360 priv
->staging_rxon
.channel
= cpu_to_le16(ch_info
->channel
);
2361 priv
->band
= ch_info
->band
;
2363 iwl4965_set_flags_for_phymode(priv
, priv
->band
);
2365 priv
->staging_rxon
.ofdm_basic_rates
=
2366 (IWL_OFDM_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2367 priv
->staging_rxon
.cck_basic_rates
=
2368 (IWL_CCK_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2370 priv
->staging_rxon
.flags
&= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK
|
2371 RXON_FLG_CHANNEL_MODE_PURE_40_MSK
);
2372 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2373 memcpy(priv
->staging_rxon
.wlap_bssid_addr
, priv
->mac_addr
, ETH_ALEN
);
2374 priv
->staging_rxon
.ofdm_ht_single_stream_basic_rates
= 0xff;
2375 priv
->staging_rxon
.ofdm_ht_dual_stream_basic_rates
= 0xff;
2376 iwl4965_set_rxon_chain(priv
);
2379 static int iwl4965_set_mode(struct iwl_priv
*priv
, int mode
)
2381 if (mode
== IEEE80211_IF_TYPE_IBSS
) {
2382 const struct iwl4965_channel_info
*ch_info
;
2384 ch_info
= iwl4965_get_channel_info(priv
,
2386 le16_to_cpu(priv
->staging_rxon
.channel
));
2388 if (!ch_info
|| !is_channel_ibss(ch_info
)) {
2389 IWL_ERROR("channel %d not IBSS channel\n",
2390 le16_to_cpu(priv
->staging_rxon
.channel
));
2395 priv
->iw_mode
= mode
;
2397 iwl4965_connection_init_rx_config(priv
);
2398 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
2400 iwl4965_clear_stations_table(priv
);
2402 /* dont commit rxon if rf-kill is on*/
2403 if (!iwl4965_is_ready_rf(priv
))
2406 cancel_delayed_work(&priv
->scan_check
);
2407 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
2408 IWL_WARNING("Aborted scan still in progress after 100ms\n");
2409 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
2413 iwl4965_commit_rxon(priv
);
2418 static void iwl4965_build_tx_cmd_hwcrypto(struct iwl_priv
*priv
,
2419 struct ieee80211_tx_control
*ctl
,
2420 struct iwl4965_cmd
*cmd
,
2421 struct sk_buff
*skb_frag
,
2424 struct iwl4965_hw_key
*keyinfo
= &priv
->stations
[ctl
->key_idx
].keyinfo
;
2426 switch (keyinfo
->alg
) {
2428 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_CCM
;
2429 memcpy(cmd
->cmd
.tx
.key
, keyinfo
->key
, keyinfo
->keylen
);
2430 if (ctl
->flags
& IEEE80211_TXCTL_AMPDU
)
2431 cmd
->cmd
.tx
.tx_flags
|= TX_CMD_FLG_AGG_CCMP_MSK
;
2432 IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
2437 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_TKIP
;
2440 memcpy(cmd
->cmd
.tx
.tkip_mic
.byte
, skb_frag
->tail
- 8,
2443 memset(cmd
->cmd
.tx
.tkip_mic
.byte
, 0, 8);
2448 cmd
->cmd
.tx
.sec_ctl
= TX_CMD_SEC_WEP
|
2449 (ctl
->key_idx
& TX_CMD_SEC_MSK
) << TX_CMD_SEC_SHIFT
;
2451 if (keyinfo
->keylen
== 13)
2452 cmd
->cmd
.tx
.sec_ctl
|= TX_CMD_SEC_KEY128
;
2454 memcpy(&cmd
->cmd
.tx
.key
[3], keyinfo
->key
, keyinfo
->keylen
);
2456 IWL_DEBUG_TX("Configuring packet for WEP encryption "
2457 "with key %d\n", ctl
->key_idx
);
2461 printk(KERN_ERR
"Unknown encode alg %d\n", keyinfo
->alg
);
2467 * handle build REPLY_TX command notification.
2469 static void iwl4965_build_tx_cmd_basic(struct iwl_priv
*priv
,
2470 struct iwl4965_cmd
*cmd
,
2471 struct ieee80211_tx_control
*ctrl
,
2472 struct ieee80211_hdr
*hdr
,
2473 int is_unicast
, u8 std_id
)
2476 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2477 __le32 tx_flags
= cmd
->cmd
.tx
.tx_flags
;
2479 cmd
->cmd
.tx
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
2480 if (!(ctrl
->flags
& IEEE80211_TXCTL_NO_ACK
)) {
2481 tx_flags
|= TX_CMD_FLG_ACK_MSK
;
2482 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
)
2483 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2484 if (ieee80211_is_probe_response(fc
) &&
2485 !(le16_to_cpu(hdr
->seq_ctrl
) & 0xf))
2486 tx_flags
|= TX_CMD_FLG_TSF_MSK
;
2488 tx_flags
&= (~TX_CMD_FLG_ACK_MSK
);
2489 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2492 if (ieee80211_is_back_request(fc
))
2493 tx_flags
|= TX_CMD_FLG_ACK_MSK
| TX_CMD_FLG_IMM_BA_RSP_MASK
;
2496 cmd
->cmd
.tx
.sta_id
= std_id
;
2497 if (ieee80211_get_morefrag(hdr
))
2498 tx_flags
|= TX_CMD_FLG_MORE_FRAG_MSK
;
2500 qc
= ieee80211_get_qos_ctrl(hdr
);
2502 cmd
->cmd
.tx
.tid_tspec
= (u8
) (le16_to_cpu(*qc
) & 0xf);
2503 tx_flags
&= ~TX_CMD_FLG_SEQ_CTL_MSK
;
2505 tx_flags
|= TX_CMD_FLG_SEQ_CTL_MSK
;
2507 if (ctrl
->flags
& IEEE80211_TXCTL_USE_RTS_CTS
) {
2508 tx_flags
|= TX_CMD_FLG_RTS_MSK
;
2509 tx_flags
&= ~TX_CMD_FLG_CTS_MSK
;
2510 } else if (ctrl
->flags
& IEEE80211_TXCTL_USE_CTS_PROTECT
) {
2511 tx_flags
&= ~TX_CMD_FLG_RTS_MSK
;
2512 tx_flags
|= TX_CMD_FLG_CTS_MSK
;
2515 if ((tx_flags
& TX_CMD_FLG_RTS_MSK
) || (tx_flags
& TX_CMD_FLG_CTS_MSK
))
2516 tx_flags
|= TX_CMD_FLG_FULL_TXOP_PROT_MSK
;
2518 tx_flags
&= ~(TX_CMD_FLG_ANT_SEL_MSK
);
2519 if ((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_MGMT
) {
2520 if ((fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_ASSOC_REQ
||
2521 (fc
& IEEE80211_FCTL_STYPE
) == IEEE80211_STYPE_REASSOC_REQ
)
2522 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(3);
2524 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= cpu_to_le16(2);
2526 cmd
->cmd
.tx
.timeout
.pm_frame_timeout
= 0;
2528 cmd
->cmd
.tx
.driver_txop
= 0;
2529 cmd
->cmd
.tx
.tx_flags
= tx_flags
;
2530 cmd
->cmd
.tx
.next_frame_len
= 0;
2532 static void iwl_update_tx_stats(struct iwl_priv
*priv
, u16 fc
, u16 len
)
2534 /* 0 - mgmt, 1 - cnt, 2 - data */
2535 int idx
= (fc
& IEEE80211_FCTL_FTYPE
) >> 2;
2536 priv
->tx_stats
[idx
].cnt
++;
2537 priv
->tx_stats
[idx
].bytes
+= len
;
2540 * iwl4965_get_sta_id - Find station's index within station table
2542 * If new IBSS station, create new entry in station table
2544 static int iwl4965_get_sta_id(struct iwl_priv
*priv
,
2545 struct ieee80211_hdr
*hdr
)
2548 u16 fc
= le16_to_cpu(hdr
->frame_control
);
2549 DECLARE_MAC_BUF(mac
);
2551 /* If this frame is broadcast or management, use broadcast station id */
2552 if (((fc
& IEEE80211_FCTL_FTYPE
) != IEEE80211_FTYPE_DATA
) ||
2553 is_multicast_ether_addr(hdr
->addr1
))
2554 return priv
->hw_setting
.bcast_sta_id
;
2556 switch (priv
->iw_mode
) {
2558 /* If we are a client station in a BSS network, use the special
2559 * AP station entry (that's the only station we communicate with) */
2560 case IEEE80211_IF_TYPE_STA
:
2563 /* If we are an AP, then find the station, or use BCAST */
2564 case IEEE80211_IF_TYPE_AP
:
2565 sta_id
= iwl4965_hw_find_station(priv
, hdr
->addr1
);
2566 if (sta_id
!= IWL_INVALID_STATION
)
2568 return priv
->hw_setting
.bcast_sta_id
;
2570 /* If this frame is going out to an IBSS network, find the station,
2571 * or create a new station table entry */
2572 case IEEE80211_IF_TYPE_IBSS
:
2573 sta_id
= iwl4965_hw_find_station(priv
, hdr
->addr1
);
2574 if (sta_id
!= IWL_INVALID_STATION
)
2577 /* Create new station table entry */
2578 sta_id
= iwl4965_add_station_flags(priv
, hdr
->addr1
,
2579 0, CMD_ASYNC
, NULL
);
2581 if (sta_id
!= IWL_INVALID_STATION
)
2584 IWL_DEBUG_DROP("Station %s not in station map. "
2585 "Defaulting to broadcast...\n",
2586 print_mac(mac
, hdr
->addr1
));
2587 iwl_print_hex_dump(IWL_DL_DROP
, (u8
*) hdr
, sizeof(*hdr
));
2588 return priv
->hw_setting
.bcast_sta_id
;
2591 IWL_WARNING("Unknown mode of operation: %d", priv
->iw_mode
);
2592 return priv
->hw_setting
.bcast_sta_id
;
2597 * start REPLY_TX command process
2599 static int iwl4965_tx_skb(struct iwl_priv
*priv
,
2600 struct sk_buff
*skb
, struct ieee80211_tx_control
*ctl
)
2602 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
2603 struct iwl4965_tfd_frame
*tfd
;
2605 int txq_id
= ctl
->queue
;
2606 struct iwl4965_tx_queue
*txq
= NULL
;
2607 struct iwl4965_queue
*q
= NULL
;
2608 dma_addr_t phys_addr
;
2609 dma_addr_t txcmd_phys
;
2610 dma_addr_t scratch_phys
;
2611 struct iwl4965_cmd
*out_cmd
= NULL
;
2612 u16 len
, idx
, len_org
;
2613 u8 id
, hdr_len
, unicast
;
2618 u8 wait_write_ptr
= 0;
2619 unsigned long flags
;
2622 spin_lock_irqsave(&priv
->lock
, flags
);
2623 if (iwl4965_is_rfkill(priv
)) {
2624 IWL_DEBUG_DROP("Dropping - RF KILL\n");
2629 IWL_DEBUG_DROP("Dropping - !priv->vif\n");
2633 if ((ctl
->tx_rate
->hw_value
& 0xFF) == IWL_INVALID_RATE
) {
2634 IWL_ERROR("ERROR: No TX rate available.\n");
2638 unicast
= !is_multicast_ether_addr(hdr
->addr1
);
2641 fc
= le16_to_cpu(hdr
->frame_control
);
2643 #ifdef CONFIG_IWLWIFI_DEBUG
2644 if (ieee80211_is_auth(fc
))
2645 IWL_DEBUG_TX("Sending AUTH frame\n");
2646 else if (ieee80211_is_assoc_request(fc
))
2647 IWL_DEBUG_TX("Sending ASSOC frame\n");
2648 else if (ieee80211_is_reassoc_request(fc
))
2649 IWL_DEBUG_TX("Sending REASSOC frame\n");
2652 /* drop all data frame if we are not associated */
2653 if (((fc
& IEEE80211_FCTL_FTYPE
) == IEEE80211_FTYPE_DATA
) &&
2654 (!iwl4965_is_associated(priv
) ||
2655 ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && !priv
->assoc_id
) ||
2656 !priv
->assoc_station_added
)) {
2657 IWL_DEBUG_DROP("Dropping - !iwl4965_is_associated\n");
2661 spin_unlock_irqrestore(&priv
->lock
, flags
);
2663 hdr_len
= ieee80211_get_hdrlen(fc
);
2665 /* Find (or create) index into station table for destination station */
2666 sta_id
= iwl4965_get_sta_id(priv
, hdr
);
2667 if (sta_id
== IWL_INVALID_STATION
) {
2668 DECLARE_MAC_BUF(mac
);
2670 IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
2671 print_mac(mac
, hdr
->addr1
));
2675 IWL_DEBUG_RATE("station Id %d\n", sta_id
);
2677 qc
= ieee80211_get_qos_ctrl(hdr
);
2679 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2680 seq_number
= priv
->stations
[sta_id
].tid
[tid
].seq_number
&
2682 hdr
->seq_ctrl
= cpu_to_le16(seq_number
) |
2684 __constant_cpu_to_le16(IEEE80211_SCTL_FRAG
));
2686 #ifdef CONFIG_IWL4965_HT
2687 /* aggregation is on for this <sta,tid> */
2688 if (ctl
->flags
& IEEE80211_TXCTL_AMPDU
)
2689 txq_id
= priv
->stations
[sta_id
].tid
[tid
].agg
.txq_id
;
2690 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
++;
2691 #endif /* CONFIG_IWL4965_HT */
2694 /* Descriptor for chosen Tx queue */
2695 txq
= &priv
->txq
[txq_id
];
2698 spin_lock_irqsave(&priv
->lock
, flags
);
2700 /* Set up first empty TFD within this queue's circular TFD buffer */
2701 tfd
= &txq
->bd
[q
->write_ptr
];
2702 memset(tfd
, 0, sizeof(*tfd
));
2703 control_flags
= (u32
*) tfd
;
2704 idx
= get_cmd_index(q
, q
->write_ptr
, 0);
2706 /* Set up driver data for this TFD */
2707 memset(&(txq
->txb
[q
->write_ptr
]), 0, sizeof(struct iwl4965_tx_info
));
2708 txq
->txb
[q
->write_ptr
].skb
[0] = skb
;
2709 memcpy(&(txq
->txb
[q
->write_ptr
].status
.control
),
2710 ctl
, sizeof(struct ieee80211_tx_control
));
2712 /* Set up first empty entry in queue's array of Tx/cmd buffers */
2713 out_cmd
= &txq
->cmd
[idx
];
2714 memset(&out_cmd
->hdr
, 0, sizeof(out_cmd
->hdr
));
2715 memset(&out_cmd
->cmd
.tx
, 0, sizeof(out_cmd
->cmd
.tx
));
2718 * Set up the Tx-command (not MAC!) header.
2719 * Store the chosen Tx queue and TFD index within the sequence field;
2720 * after Tx, uCode's Tx response will return this value so driver can
2721 * locate the frame within the tx queue and do post-tx processing.
2723 out_cmd
->hdr
.cmd
= REPLY_TX
;
2724 out_cmd
->hdr
.sequence
= cpu_to_le16((u16
)(QUEUE_TO_SEQ(txq_id
) |
2725 INDEX_TO_SEQ(q
->write_ptr
)));
2727 /* Copy MAC header from skb into command buffer */
2728 memcpy(out_cmd
->cmd
.tx
.hdr
, hdr
, hdr_len
);
2731 * Use the first empty entry in this queue's command buffer array
2732 * to contain the Tx command and MAC header concatenated together
2733 * (payload data will be in another buffer).
2734 * Size of this varies, due to varying MAC header length.
2735 * If end is not dword aligned, we'll have 2 extra bytes at the end
2736 * of the MAC header (device reads on dword boundaries).
2737 * We'll tell device about this padding later.
2739 len
= priv
->hw_setting
.tx_cmd_len
+
2740 sizeof(struct iwl4965_cmd_header
) + hdr_len
;
2743 len
= (len
+ 3) & ~3;
2750 /* Physical address of this Tx command's header (not MAC header!),
2751 * within command buffer array. */
2752 txcmd_phys
= txq
->dma_addr_cmd
+ sizeof(struct iwl4965_cmd
) * idx
+
2753 offsetof(struct iwl4965_cmd
, hdr
);
2755 /* Add buffer containing Tx command and MAC(!) header to TFD's
2757 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, txcmd_phys
, len
);
2759 if (!(ctl
->flags
& IEEE80211_TXCTL_DO_NOT_ENCRYPT
))
2760 iwl4965_build_tx_cmd_hwcrypto(priv
, ctl
, out_cmd
, skb
, 0);
2762 /* Set up TFD's 2nd entry to point directly to remainder of skb,
2763 * if any (802.11 null frames have no payload). */
2764 len
= skb
->len
- hdr_len
;
2766 phys_addr
= pci_map_single(priv
->pci_dev
, skb
->data
+ hdr_len
,
2767 len
, PCI_DMA_TODEVICE
);
2768 iwl4965_hw_txq_attach_buf_to_tfd(priv
, tfd
, phys_addr
, len
);
2771 /* Tell 4965 about any 2-byte padding after MAC header */
2773 out_cmd
->cmd
.tx
.tx_flags
|= TX_CMD_FLG_MH_PAD_MSK
;
2775 /* Total # bytes to be transmitted */
2776 len
= (u16
)skb
->len
;
2777 out_cmd
->cmd
.tx
.len
= cpu_to_le16(len
);
2779 /* TODO need this for burst mode later on */
2780 iwl4965_build_tx_cmd_basic(priv
, out_cmd
, ctl
, hdr
, unicast
, sta_id
);
2782 /* set is_hcca to 0; it probably will never be implemented */
2783 iwl4965_hw_build_tx_cmd_rate(priv
, out_cmd
, ctl
, hdr
, sta_id
, 0);
2785 iwl_update_tx_stats(priv
, fc
, len
);
2787 scratch_phys
= txcmd_phys
+ sizeof(struct iwl4965_cmd_header
) +
2788 offsetof(struct iwl4965_tx_cmd
, scratch
);
2789 out_cmd
->cmd
.tx
.dram_lsb_ptr
= cpu_to_le32(scratch_phys
);
2790 out_cmd
->cmd
.tx
.dram_msb_ptr
= iwl_get_dma_hi_address(scratch_phys
);
2792 if (!ieee80211_get_morefrag(hdr
)) {
2793 txq
->need_update
= 1;
2795 u8 tid
= (u8
)(le16_to_cpu(*qc
) & 0xf);
2796 priv
->stations
[sta_id
].tid
[tid
].seq_number
= seq_number
;
2800 txq
->need_update
= 0;
2803 iwl_print_hex_dump(IWL_DL_TX
, out_cmd
->cmd
.payload
,
2804 sizeof(out_cmd
->cmd
.tx
));
2806 iwl_print_hex_dump(IWL_DL_TX
, (u8
*)out_cmd
->cmd
.tx
.hdr
,
2807 ieee80211_get_hdrlen(fc
));
2809 /* Set up entry for this TFD in Tx byte-count array */
2810 iwl4965_tx_queue_update_wr_ptr(priv
, txq
, len
);
2812 /* Tell device the write index *just past* this latest filled TFD */
2813 q
->write_ptr
= iwl_queue_inc_wrap(q
->write_ptr
, q
->n_bd
);
2814 rc
= iwl4965_tx_queue_update_write_ptr(priv
, txq
);
2815 spin_unlock_irqrestore(&priv
->lock
, flags
);
2820 if ((iwl4965_queue_space(q
) < q
->high_mark
)
2821 && priv
->mac80211_registered
) {
2822 if (wait_write_ptr
) {
2823 spin_lock_irqsave(&priv
->lock
, flags
);
2824 txq
->need_update
= 1;
2825 iwl4965_tx_queue_update_write_ptr(priv
, txq
);
2826 spin_unlock_irqrestore(&priv
->lock
, flags
);
2829 ieee80211_stop_queue(priv
->hw
, ctl
->queue
);
2835 spin_unlock_irqrestore(&priv
->lock
, flags
);
2840 static void iwl4965_set_rate(struct iwl_priv
*priv
)
2842 const struct ieee80211_supported_band
*hw
= NULL
;
2843 struct ieee80211_rate
*rate
;
2846 hw
= iwl4965_get_hw_mode(priv
, priv
->band
);
2848 IWL_ERROR("Failed to set rate: unable to get hw mode\n");
2852 priv
->active_rate
= 0;
2853 priv
->active_rate_basic
= 0;
2855 for (i
= 0; i
< hw
->n_bitrates
; i
++) {
2856 rate
= &(hw
->bitrates
[i
]);
2857 if (rate
->hw_value
< IWL_RATE_COUNT
)
2858 priv
->active_rate
|= (1 << rate
->hw_value
);
2861 IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
2862 priv
->active_rate
, priv
->active_rate_basic
);
2865 * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
2866 * otherwise set it to the default of all CCK rates and 6, 12, 24 for
2869 if (priv
->active_rate_basic
& IWL_CCK_BASIC_RATES_MASK
)
2870 priv
->staging_rxon
.cck_basic_rates
=
2871 ((priv
->active_rate_basic
&
2872 IWL_CCK_RATES_MASK
) >> IWL_FIRST_CCK_RATE
) & 0xF;
2874 priv
->staging_rxon
.cck_basic_rates
=
2875 (IWL_CCK_BASIC_RATES_MASK
>> IWL_FIRST_CCK_RATE
) & 0xF;
2877 if (priv
->active_rate_basic
& IWL_OFDM_BASIC_RATES_MASK
)
2878 priv
->staging_rxon
.ofdm_basic_rates
=
2879 ((priv
->active_rate_basic
&
2880 (IWL_OFDM_BASIC_RATES_MASK
| IWL_RATE_6M_MASK
)) >>
2881 IWL_FIRST_OFDM_RATE
) & 0xFF;
2883 priv
->staging_rxon
.ofdm_basic_rates
=
2884 (IWL_OFDM_BASIC_RATES_MASK
>> IWL_FIRST_OFDM_RATE
) & 0xFF;
2887 static void iwl4965_radio_kill_sw(struct iwl_priv
*priv
, int disable_radio
)
2889 unsigned long flags
;
2891 if (!!disable_radio
== test_bit(STATUS_RF_KILL_SW
, &priv
->status
))
2894 IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
2895 disable_radio
? "OFF" : "ON");
2897 if (disable_radio
) {
2898 iwl4965_scan_cancel(priv
);
2899 /* FIXME: This is a workaround for AP */
2900 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
2901 spin_lock_irqsave(&priv
->lock
, flags
);
2902 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
2903 CSR_UCODE_SW_BIT_RFKILL
);
2904 spin_unlock_irqrestore(&priv
->lock
, flags
);
2905 iwl4965_send_card_state(priv
, CARD_STATE_CMD_DISABLE
, 0);
2906 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2911 spin_lock_irqsave(&priv
->lock
, flags
);
2912 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
2914 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
2915 spin_unlock_irqrestore(&priv
->lock
, flags
);
2920 spin_lock_irqsave(&priv
->lock
, flags
);
2921 iwl4965_read32(priv
, CSR_UCODE_DRV_GP1
);
2922 if (!iwl4965_grab_nic_access(priv
))
2923 iwl4965_release_nic_access(priv
);
2924 spin_unlock_irqrestore(&priv
->lock
, flags
);
2926 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) {
2927 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
2928 "disabled by HW switch\n");
2932 queue_work(priv
->workqueue
, &priv
->restart
);
2936 void iwl4965_set_decrypted_flag(struct iwl_priv
*priv
, struct sk_buff
*skb
,
2937 u32 decrypt_res
, struct ieee80211_rx_status
*stats
)
2940 le16_to_cpu(((struct ieee80211_hdr
*)skb
->data
)->frame_control
);
2942 if (priv
->active_rxon
.filter_flags
& RXON_FILTER_DIS_DECRYPT_MSK
)
2945 if (!(fc
& IEEE80211_FCTL_PROTECTED
))
2948 IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res
);
2949 switch (decrypt_res
& RX_RES_STATUS_SEC_TYPE_MSK
) {
2950 case RX_RES_STATUS_SEC_TYPE_TKIP
:
2951 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2952 RX_RES_STATUS_BAD_ICV_MIC
)
2953 stats
->flag
|= RX_FLAG_MMIC_ERROR
;
2954 case RX_RES_STATUS_SEC_TYPE_WEP
:
2955 case RX_RES_STATUS_SEC_TYPE_CCMP
:
2956 if ((decrypt_res
& RX_RES_STATUS_DECRYPT_TYPE_MSK
) ==
2957 RX_RES_STATUS_DECRYPT_OK
) {
2958 IWL_DEBUG_RX("hw decrypt successfully!!!\n");
2959 stats
->flag
|= RX_FLAG_DECRYPTED
;
2969 #define IWL_PACKET_RETRY_TIME HZ
2971 int iwl4965_is_duplicate_packet(struct iwl_priv
*priv
, struct ieee80211_hdr
*header
)
2973 u16 sc
= le16_to_cpu(header
->seq_ctrl
);
2974 u16 seq
= (sc
& IEEE80211_SCTL_SEQ
) >> 4;
2975 u16 frag
= sc
& IEEE80211_SCTL_FRAG
;
2976 u16
*last_seq
, *last_frag
;
2977 unsigned long *last_time
;
2979 switch (priv
->iw_mode
) {
2980 case IEEE80211_IF_TYPE_IBSS
:{
2981 struct list_head
*p
;
2982 struct iwl4965_ibss_seq
*entry
= NULL
;
2983 u8
*mac
= header
->addr2
;
2984 int index
= mac
[5] & (IWL_IBSS_MAC_HASH_SIZE
- 1);
2986 __list_for_each(p
, &priv
->ibss_mac_hash
[index
]) {
2987 entry
= list_entry(p
, struct iwl4965_ibss_seq
, list
);
2988 if (!compare_ether_addr(entry
->mac
, mac
))
2991 if (p
== &priv
->ibss_mac_hash
[index
]) {
2992 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
2994 IWL_ERROR("Cannot malloc new mac entry\n");
2997 memcpy(entry
->mac
, mac
, ETH_ALEN
);
2998 entry
->seq_num
= seq
;
2999 entry
->frag_num
= frag
;
3000 entry
->packet_time
= jiffies
;
3001 list_add(&entry
->list
, &priv
->ibss_mac_hash
[index
]);
3004 last_seq
= &entry
->seq_num
;
3005 last_frag
= &entry
->frag_num
;
3006 last_time
= &entry
->packet_time
;
3009 case IEEE80211_IF_TYPE_STA
:
3010 last_seq
= &priv
->last_seq_num
;
3011 last_frag
= &priv
->last_frag_num
;
3012 last_time
= &priv
->last_packet_time
;
3017 if ((*last_seq
== seq
) &&
3018 time_after(*last_time
+ IWL_PACKET_RETRY_TIME
, jiffies
)) {
3019 if (*last_frag
== frag
)
3021 if (*last_frag
+ 1 != frag
)
3022 /* out-of-order fragment */
3028 *last_time
= jiffies
;
3035 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
3037 #include "iwl-spectrum.h"
3039 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
3040 #define BEACON_TIME_MASK_HIGH 0xFF000000
3041 #define TIME_UNIT 1024
3044 * extended beacon time format
3045 * time in usec will be changed into a 32-bit value in 8:24 format
3046 * the high 1 byte is the beacon counts
3047 * the lower 3 bytes is the time in usec within one beacon interval
3050 static u32
iwl4965_usecs_to_beacons(u32 usec
, u32 beacon_interval
)
3054 u32 interval
= beacon_interval
* 1024;
3056 if (!interval
|| !usec
)
3059 quot
= (usec
/ interval
) & (BEACON_TIME_MASK_HIGH
>> 24);
3060 rem
= (usec
% interval
) & BEACON_TIME_MASK_LOW
;
3062 return (quot
<< 24) + rem
;
3065 /* base is usually what we get from ucode with each received frame,
3066 * the same as HW timer counter counting down
3069 static __le32
iwl4965_add_beacon_time(u32 base
, u32 addon
, u32 beacon_interval
)
3071 u32 base_low
= base
& BEACON_TIME_MASK_LOW
;
3072 u32 addon_low
= addon
& BEACON_TIME_MASK_LOW
;
3073 u32 interval
= beacon_interval
* TIME_UNIT
;
3074 u32 res
= (base
& BEACON_TIME_MASK_HIGH
) +
3075 (addon
& BEACON_TIME_MASK_HIGH
);
3077 if (base_low
> addon_low
)
3078 res
+= base_low
- addon_low
;
3079 else if (base_low
< addon_low
) {
3080 res
+= interval
+ base_low
- addon_low
;
3085 return cpu_to_le32(res
);
3088 static int iwl4965_get_measurement(struct iwl_priv
*priv
,
3089 struct ieee80211_measurement_params
*params
,
3092 struct iwl4965_spectrum_cmd spectrum
;
3093 struct iwl4965_rx_packet
*res
;
3094 struct iwl4965_host_cmd cmd
= {
3095 .id
= REPLY_SPECTRUM_MEASUREMENT_CMD
,
3096 .data
= (void *)&spectrum
,
3097 .meta
.flags
= CMD_WANT_SKB
,
3099 u32 add_time
= le64_to_cpu(params
->start_time
);
3101 int spectrum_resp_status
;
3102 int duration
= le16_to_cpu(params
->duration
);
3104 if (iwl4965_is_associated(priv
))
3106 iwl4965_usecs_to_beacons(
3107 le64_to_cpu(params
->start_time
) - priv
->last_tsf
,
3108 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
3110 memset(&spectrum
, 0, sizeof(spectrum
));
3112 spectrum
.channel_count
= cpu_to_le16(1);
3114 RXON_FLG_TSF2HOST_MSK
| RXON_FLG_ANT_A_MSK
| RXON_FLG_DIS_DIV_MSK
;
3115 spectrum
.filter_flags
= MEASUREMENT_FILTER_FLAG
;
3116 cmd
.len
= sizeof(spectrum
);
3117 spectrum
.len
= cpu_to_le16(cmd
.len
- sizeof(spectrum
.len
));
3119 if (iwl4965_is_associated(priv
))
3120 spectrum
.start_time
=
3121 iwl4965_add_beacon_time(priv
->last_beacon_time
,
3123 le16_to_cpu(priv
->rxon_timing
.beacon_interval
));
3125 spectrum
.start_time
= 0;
3127 spectrum
.channels
[0].duration
= cpu_to_le32(duration
* TIME_UNIT
);
3128 spectrum
.channels
[0].channel
= params
->channel
;
3129 spectrum
.channels
[0].type
= type
;
3130 if (priv
->active_rxon
.flags
& RXON_FLG_BAND_24G_MSK
)
3131 spectrum
.flags
|= RXON_FLG_BAND_24G_MSK
|
3132 RXON_FLG_AUTO_DETECT_MSK
| RXON_FLG_TGG_PROTECT_MSK
;
3134 rc
= iwl4965_send_cmd_sync(priv
, &cmd
);
3138 res
= (struct iwl4965_rx_packet
*)cmd
.meta
.u
.skb
->data
;
3139 if (res
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
3140 IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
3144 spectrum_resp_status
= le16_to_cpu(res
->u
.spectrum
.status
);
3145 switch (spectrum_resp_status
) {
3146 case 0: /* Command will be handled */
3147 if (res
->u
.spectrum
.id
!= 0xff) {
3149 ("Replaced existing measurement: %d\n",
3150 res
->u
.spectrum
.id
);
3151 priv
->measurement_status
&= ~MEASUREMENT_READY
;
3153 priv
->measurement_status
|= MEASUREMENT_ACTIVE
;
3157 case 1: /* Command will not be handled */
3162 dev_kfree_skb_any(cmd
.meta
.u
.skb
);
3168 static void iwl4965_txstatus_to_ieee(struct iwl_priv
*priv
,
3169 struct iwl4965_tx_info
*tx_sta
)
3172 tx_sta
->status
.ack_signal
= 0;
3173 tx_sta
->status
.excessive_retries
= 0;
3174 tx_sta
->status
.queue_length
= 0;
3175 tx_sta
->status
.queue_number
= 0;
3178 ieee80211_tx_status_irqsafe(priv
->hw
,
3179 tx_sta
->skb
[0], &(tx_sta
->status
));
3181 ieee80211_tx_status(priv
->hw
,
3182 tx_sta
->skb
[0], &(tx_sta
->status
));
3184 tx_sta
->skb
[0] = NULL
;
3188 * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
3190 * When FW advances 'R' index, all entries between old and new 'R' index
3191 * need to be reclaimed. As result, some free space forms. If there is
3192 * enough free space (> low mark), wake the stack that feeds us.
3194 int iwl4965_tx_queue_reclaim(struct iwl_priv
*priv
, int txq_id
, int index
)
3196 struct iwl4965_tx_queue
*txq
= &priv
->txq
[txq_id
];
3197 struct iwl4965_queue
*q
= &txq
->q
;
3200 if ((index
>= q
->n_bd
) || (x2_queue_used(q
, index
) == 0)) {
3201 IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
3202 "is out of range [0-%d] %d %d.\n", txq_id
,
3203 index
, q
->n_bd
, q
->write_ptr
, q
->read_ptr
);
3207 for (index
= iwl_queue_inc_wrap(index
, q
->n_bd
);
3208 q
->read_ptr
!= index
;
3209 q
->read_ptr
= iwl_queue_inc_wrap(q
->read_ptr
, q
->n_bd
)) {
3210 if (txq_id
!= IWL_CMD_QUEUE_NUM
) {
3211 iwl4965_txstatus_to_ieee(priv
,
3212 &(txq
->txb
[txq
->q
.read_ptr
]));
3213 iwl4965_hw_txq_free_tfd(priv
, txq
);
3214 } else if (nfreed
> 1) {
3215 IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index
,
3216 q
->write_ptr
, q
->read_ptr
);
3217 queue_work(priv
->workqueue
, &priv
->restart
);
3222 /* if (iwl4965_queue_space(q) > q->low_mark && (txq_id >= 0) &&
3223 (txq_id != IWL_CMD_QUEUE_NUM) &&
3224 priv->mac80211_registered)
3225 ieee80211_wake_queue(priv->hw, txq_id); */
3231 static int iwl4965_is_tx_success(u32 status
)
3233 status
&= TX_STATUS_MSK
;
3234 return (status
== TX_STATUS_SUCCESS
)
3235 || (status
== TX_STATUS_DIRECT_DONE
);
3238 /******************************************************************************
3240 * Generic RX handler implementations
3242 ******************************************************************************/
3243 #ifdef CONFIG_IWL4965_HT
3245 static inline int iwl4965_get_ra_sta_id(struct iwl_priv
*priv
,
3246 struct ieee80211_hdr
*hdr
)
3248 if (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)
3251 u8
*da
= ieee80211_get_DA(hdr
);
3252 return iwl4965_hw_find_station(priv
, da
);
3256 static struct ieee80211_hdr
*iwl4965_tx_queue_get_hdr(
3257 struct iwl_priv
*priv
, int txq_id
, int idx
)
3259 if (priv
->txq
[txq_id
].txb
[idx
].skb
[0])
3260 return (struct ieee80211_hdr
*)priv
->txq
[txq_id
].
3261 txb
[idx
].skb
[0]->data
;
3265 static inline u32
iwl4965_get_scd_ssn(struct iwl4965_tx_resp
*tx_resp
)
3267 __le32
*scd_ssn
= (__le32
*)((u32
*)&tx_resp
->status
+
3268 tx_resp
->frame_count
);
3269 return le32_to_cpu(*scd_ssn
) & MAX_SN
;
3274 * iwl4965_tx_status_reply_tx - Handle Tx rspnse for frames in aggregation queue
3276 static int iwl4965_tx_status_reply_tx(struct iwl_priv
*priv
,
3277 struct iwl4965_ht_agg
*agg
,
3278 struct iwl4965_tx_resp_agg
*tx_resp
,
3282 struct agg_tx_status
*frame_status
= &tx_resp
->status
;
3283 struct ieee80211_tx_status
*tx_status
= NULL
;
3284 struct ieee80211_hdr
*hdr
= NULL
;
3289 if (agg
->wait_for_ba
)
3290 IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
3292 agg
->frame_count
= tx_resp
->frame_count
;
3293 agg
->start_idx
= start_idx
;
3294 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
3297 /* # frames attempted by Tx command */
3298 if (agg
->frame_count
== 1) {
3299 /* Only one frame was attempted; no block-ack will arrive */
3300 status
= le16_to_cpu(frame_status
[0].status
);
3301 seq
= le16_to_cpu(frame_status
[0].sequence
);
3302 idx
= SEQ_TO_INDEX(seq
);
3303 txq_id
= SEQ_TO_QUEUE(seq
);
3305 /* FIXME: code repetition */
3306 IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
3307 agg
->frame_count
, agg
->start_idx
, idx
);
3309 tx_status
= &(priv
->txq
[txq_id
].txb
[idx
].status
);
3310 tx_status
->retry_count
= tx_resp
->failure_frame
;
3311 tx_status
->queue_number
= status
& 0xff;
3312 tx_status
->queue_length
= tx_resp
->failure_rts
;
3313 tx_status
->control
.flags
&= ~IEEE80211_TXCTL_AMPDU
;
3314 tx_status
->flags
= iwl4965_is_tx_success(status
)?
3315 IEEE80211_TX_STATUS_ACK
: 0;
3316 iwl4965_hwrate_to_tx_control(priv
,
3317 le32_to_cpu(tx_resp
->rate_n_flags
),
3318 &tx_status
->control
);
3319 /* FIXME: code repetition end */
3321 IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
3322 status
& 0xff, tx_resp
->failure_frame
);
3323 IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n",
3324 iwl4965_hw_get_rate_n_flags(tx_resp
->rate_n_flags
));
3326 agg
->wait_for_ba
= 0;
3328 /* Two or more frames were attempted; expect block-ack */
3330 int start
= agg
->start_idx
;
3332 /* Construct bit-map of pending frames within Tx window */
3333 for (i
= 0; i
< agg
->frame_count
; i
++) {
3335 status
= le16_to_cpu(frame_status
[i
].status
);
3336 seq
= le16_to_cpu(frame_status
[i
].sequence
);
3337 idx
= SEQ_TO_INDEX(seq
);
3338 txq_id
= SEQ_TO_QUEUE(seq
);
3340 if (status
& (AGG_TX_STATE_FEW_BYTES_MSK
|
3341 AGG_TX_STATE_ABORT_MSK
))
3344 IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
3345 agg
->frame_count
, txq_id
, idx
);
3347 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, idx
);
3349 sc
= le16_to_cpu(hdr
->seq_ctrl
);
3350 if (idx
!= (SEQ_TO_SN(sc
) & 0xff)) {
3351 IWL_ERROR("BUG_ON idx doesn't match seq control"
3352 " idx=%d, seq_idx=%d, seq=%d\n",
3358 IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n",
3359 i
, idx
, SEQ_TO_SN(sc
));
3363 sh
= (start
- idx
) + 0xff;
3364 bitmap
= bitmap
<< sh
;
3367 } else if (sh
< -64)
3368 sh
= 0xff - (start
- idx
);
3372 bitmap
= bitmap
<< sh
;
3375 bitmap
|= (1 << sh
);
3376 IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n",
3377 start
, (u32
)(bitmap
& 0xFFFFFFFF));
3380 agg
->bitmap
= bitmap
;
3381 agg
->start_idx
= start
;
3382 agg
->rate_n_flags
= le32_to_cpu(tx_resp
->rate_n_flags
);
3383 IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n",
3384 agg
->frame_count
, agg
->start_idx
,
3388 agg
->wait_for_ba
= 1;
3395 * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response
3397 static void iwl4965_rx_reply_tx(struct iwl_priv
*priv
,
3398 struct iwl4965_rx_mem_buffer
*rxb
)
3400 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3401 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3402 int txq_id
= SEQ_TO_QUEUE(sequence
);
3403 int index
= SEQ_TO_INDEX(sequence
);
3404 struct iwl4965_tx_queue
*txq
= &priv
->txq
[txq_id
];
3405 struct ieee80211_tx_status
*tx_status
;
3406 struct iwl4965_tx_resp
*tx_resp
= (void *)&pkt
->u
.raw
[0];
3407 u32 status
= le32_to_cpu(tx_resp
->status
);
3408 #ifdef CONFIG_IWL4965_HT
3409 int tid
= MAX_TID_COUNT
, sta_id
= IWL_INVALID_STATION
;
3410 struct ieee80211_hdr
*hdr
;
3414 if ((index
>= txq
->q
.n_bd
) || (x2_queue_used(&txq
->q
, index
) == 0)) {
3415 IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
3416 "is out of range [0-%d] %d %d\n", txq_id
,
3417 index
, txq
->q
.n_bd
, txq
->q
.write_ptr
,
3422 #ifdef CONFIG_IWL4965_HT
3423 hdr
= iwl4965_tx_queue_get_hdr(priv
, txq_id
, index
);
3424 qc
= ieee80211_get_qos_ctrl(hdr
);
3427 tid
= le16_to_cpu(*qc
) & 0xf;
3429 sta_id
= iwl4965_get_ra_sta_id(priv
, hdr
);
3430 if (txq
->sched_retry
&& unlikely(sta_id
== IWL_INVALID_STATION
)) {
3431 IWL_ERROR("Station not known\n");
3435 if (txq
->sched_retry
) {
3436 const u32 scd_ssn
= iwl4965_get_scd_ssn(tx_resp
);
3437 struct iwl4965_ht_agg
*agg
= NULL
;
3442 agg
= &priv
->stations
[sta_id
].tid
[tid
].agg
;
3444 iwl4965_tx_status_reply_tx(priv
, agg
,
3445 (struct iwl4965_tx_resp_agg
*)tx_resp
, index
);
3447 if ((tx_resp
->frame_count
== 1) &&
3448 !iwl4965_is_tx_success(status
)) {
3449 /* TODO: send BAR */
3452 if (txq
->q
.read_ptr
!= (scd_ssn
& 0xff)) {
3454 index
= iwl_queue_dec_wrap(scd_ssn
& 0xff, txq
->q
.n_bd
);
3455 IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
3456 "%d index %d\n", scd_ssn
, index
);
3457 freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3458 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
3460 if (iwl4965_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
3461 txq_id
>= 0 && priv
->mac80211_registered
&&
3462 agg
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
3463 ieee80211_wake_queue(priv
->hw
, txq_id
);
3465 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
3468 #endif /* CONFIG_IWL4965_HT */
3469 tx_status
= &(txq
->txb
[txq
->q
.read_ptr
].status
);
3471 tx_status
->retry_count
= tx_resp
->failure_frame
;
3472 tx_status
->queue_number
= status
;
3473 tx_status
->queue_length
= tx_resp
->bt_kill_count
;
3474 tx_status
->queue_length
|= tx_resp
->failure_rts
;
3476 iwl4965_is_tx_success(status
) ? IEEE80211_TX_STATUS_ACK
: 0;
3477 iwl4965_hwrate_to_tx_control(priv
, le32_to_cpu(tx_resp
->rate_n_flags
),
3478 &tx_status
->control
);
3480 IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags 0x%x "
3481 "retries %d\n", txq_id
, iwl4965_get_tx_fail_reason(status
),
3482 status
, le32_to_cpu(tx_resp
->rate_n_flags
),
3483 tx_resp
->failure_frame
);
3485 IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index
);
3487 int freed
= iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3488 #ifdef CONFIG_IWL4965_HT
3489 if (tid
!= MAX_TID_COUNT
)
3490 priv
->stations
[sta_id
].tid
[tid
].tfds_in_queue
-= freed
;
3491 if (iwl4965_queue_space(&txq
->q
) > txq
->q
.low_mark
&&
3493 priv
->mac80211_registered
)
3494 ieee80211_wake_queue(priv
->hw
, txq_id
);
3495 if (tid
!= MAX_TID_COUNT
)
3496 iwl4965_check_empty_hw_queue(priv
, sta_id
, tid
, txq_id
);
3499 #ifdef CONFIG_IWL4965_HT
3501 #endif /* CONFIG_IWL4965_HT */
3503 if (iwl_check_bits(status
, TX_ABORT_REQUIRED_MSK
))
3504 IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
3508 static void iwl4965_rx_reply_alive(struct iwl_priv
*priv
,
3509 struct iwl4965_rx_mem_buffer
*rxb
)
3511 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3512 struct iwl4965_alive_resp
*palive
;
3513 struct delayed_work
*pwork
;
3515 palive
= &pkt
->u
.alive_frame
;
3517 IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
3519 palive
->is_valid
, palive
->ver_type
,
3520 palive
->ver_subtype
);
3522 if (palive
->ver_subtype
== INITIALIZE_SUBTYPE
) {
3523 IWL_DEBUG_INFO("Initialization Alive received.\n");
3524 memcpy(&priv
->card_alive_init
,
3525 &pkt
->u
.alive_frame
,
3526 sizeof(struct iwl4965_init_alive_resp
));
3527 pwork
= &priv
->init_alive_start
;
3529 IWL_DEBUG_INFO("Runtime Alive received.\n");
3530 memcpy(&priv
->card_alive
, &pkt
->u
.alive_frame
,
3531 sizeof(struct iwl4965_alive_resp
));
3532 pwork
= &priv
->alive_start
;
3535 /* We delay the ALIVE response by 5ms to
3536 * give the HW RF Kill time to activate... */
3537 if (palive
->is_valid
== UCODE_VALID_OK
)
3538 queue_delayed_work(priv
->workqueue
, pwork
,
3539 msecs_to_jiffies(5));
3541 IWL_WARNING("uCode did not respond OK.\n");
3544 static void iwl4965_rx_reply_add_sta(struct iwl_priv
*priv
,
3545 struct iwl4965_rx_mem_buffer
*rxb
)
3547 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3549 IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt
->u
.status
);
3553 static void iwl4965_rx_reply_error(struct iwl_priv
*priv
,
3554 struct iwl4965_rx_mem_buffer
*rxb
)
3556 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3558 IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
3559 "seq 0x%04X ser 0x%08X\n",
3560 le32_to_cpu(pkt
->u
.err_resp
.error_type
),
3561 get_cmd_string(pkt
->u
.err_resp
.cmd_id
),
3562 pkt
->u
.err_resp
.cmd_id
,
3563 le16_to_cpu(pkt
->u
.err_resp
.bad_cmd_seq_num
),
3564 le32_to_cpu(pkt
->u
.err_resp
.error_info
));
3567 #define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
3569 static void iwl4965_rx_csa(struct iwl_priv
*priv
, struct iwl4965_rx_mem_buffer
*rxb
)
3571 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3572 struct iwl4965_rxon_cmd
*rxon
= (void *)&priv
->active_rxon
;
3573 struct iwl4965_csa_notification
*csa
= &(pkt
->u
.csa_notif
);
3574 IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
3575 le16_to_cpu(csa
->channel
), le32_to_cpu(csa
->status
));
3576 rxon
->channel
= csa
->channel
;
3577 priv
->staging_rxon
.channel
= csa
->channel
;
3580 static void iwl4965_rx_spectrum_measure_notif(struct iwl_priv
*priv
,
3581 struct iwl4965_rx_mem_buffer
*rxb
)
3583 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
3584 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3585 struct iwl4965_spectrum_notification
*report
= &(pkt
->u
.spectrum_notif
);
3587 if (!report
->state
) {
3588 IWL_DEBUG(IWL_DL_11H
| IWL_DL_INFO
,
3589 "Spectrum Measure Notification: Start\n");
3593 memcpy(&priv
->measure_report
, report
, sizeof(*report
));
3594 priv
->measurement_status
|= MEASUREMENT_READY
;
3598 static void iwl4965_rx_pm_sleep_notif(struct iwl_priv
*priv
,
3599 struct iwl4965_rx_mem_buffer
*rxb
)
3601 #ifdef CONFIG_IWLWIFI_DEBUG
3602 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3603 struct iwl4965_sleep_notification
*sleep
= &(pkt
->u
.sleep_notif
);
3604 IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
3605 sleep
->pm_sleep_mode
, sleep
->pm_wakeup_src
);
3609 static void iwl4965_rx_pm_debug_statistics_notif(struct iwl_priv
*priv
,
3610 struct iwl4965_rx_mem_buffer
*rxb
)
3612 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3613 IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
3614 "notification for %s:\n",
3615 le32_to_cpu(pkt
->len
), get_cmd_string(pkt
->hdr
.cmd
));
3616 iwl_print_hex_dump(IWL_DL_RADIO
, pkt
->u
.raw
, le32_to_cpu(pkt
->len
));
3619 static void iwl4965_bg_beacon_update(struct work_struct
*work
)
3621 struct iwl_priv
*priv
=
3622 container_of(work
, struct iwl_priv
, beacon_update
);
3623 struct sk_buff
*beacon
;
3625 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
3626 beacon
= ieee80211_beacon_get(priv
->hw
, priv
->vif
, NULL
);
3629 IWL_ERROR("update beacon failed\n");
3633 mutex_lock(&priv
->mutex
);
3634 /* new beacon skb is allocated every time; dispose previous.*/
3635 if (priv
->ibss_beacon
)
3636 dev_kfree_skb(priv
->ibss_beacon
);
3638 priv
->ibss_beacon
= beacon
;
3639 mutex_unlock(&priv
->mutex
);
3641 iwl4965_send_beacon_cmd(priv
);
3644 static void iwl4965_rx_beacon_notif(struct iwl_priv
*priv
,
3645 struct iwl4965_rx_mem_buffer
*rxb
)
3647 #ifdef CONFIG_IWLWIFI_DEBUG
3648 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3649 struct iwl4965_beacon_notif
*beacon
= &(pkt
->u
.beacon_status
);
3650 u8 rate
= iwl4965_hw_get_rate(beacon
->beacon_notify_hdr
.rate_n_flags
);
3652 IWL_DEBUG_RX("beacon status %x retries %d iss %d "
3653 "tsf %d %d rate %d\n",
3654 le32_to_cpu(beacon
->beacon_notify_hdr
.status
) & TX_STATUS_MSK
,
3655 beacon
->beacon_notify_hdr
.failure_frame
,
3656 le32_to_cpu(beacon
->ibss_mgr_status
),
3657 le32_to_cpu(beacon
->high_tsf
),
3658 le32_to_cpu(beacon
->low_tsf
), rate
);
3661 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
3662 (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)))
3663 queue_work(priv
->workqueue
, &priv
->beacon_update
);
3666 /* Service response to REPLY_SCAN_CMD (0x80) */
3667 static void iwl4965_rx_reply_scan(struct iwl_priv
*priv
,
3668 struct iwl4965_rx_mem_buffer
*rxb
)
3670 #ifdef CONFIG_IWLWIFI_DEBUG
3671 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3672 struct iwl4965_scanreq_notification
*notif
=
3673 (struct iwl4965_scanreq_notification
*)pkt
->u
.raw
;
3675 IWL_DEBUG_RX("Scan request status = 0x%x\n", notif
->status
);
3679 /* Service SCAN_START_NOTIFICATION (0x82) */
3680 static void iwl4965_rx_scan_start_notif(struct iwl_priv
*priv
,
3681 struct iwl4965_rx_mem_buffer
*rxb
)
3683 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3684 struct iwl4965_scanstart_notification
*notif
=
3685 (struct iwl4965_scanstart_notification
*)pkt
->u
.raw
;
3686 priv
->scan_start_tsf
= le32_to_cpu(notif
->tsf_low
);
3687 IWL_DEBUG_SCAN("Scan start: "
3689 "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
3691 notif
->band
? "bg" : "a",
3693 notif
->tsf_low
, notif
->status
, notif
->beacon_timer
);
3696 /* Service SCAN_RESULTS_NOTIFICATION (0x83) */
3697 static void iwl4965_rx_scan_results_notif(struct iwl_priv
*priv
,
3698 struct iwl4965_rx_mem_buffer
*rxb
)
3700 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3701 struct iwl4965_scanresults_notification
*notif
=
3702 (struct iwl4965_scanresults_notification
*)pkt
->u
.raw
;
3704 IWL_DEBUG_SCAN("Scan ch.res: "
3706 "(TSF: 0x%08X:%08X) - %d "
3707 "elapsed=%lu usec (%dms since last)\n",
3709 notif
->band
? "bg" : "a",
3710 le32_to_cpu(notif
->tsf_high
),
3711 le32_to_cpu(notif
->tsf_low
),
3712 le32_to_cpu(notif
->statistics
[0]),
3713 le32_to_cpu(notif
->tsf_low
) - priv
->scan_start_tsf
,
3714 jiffies_to_msecs(elapsed_jiffies
3715 (priv
->last_scan_jiffies
, jiffies
)));
3717 priv
->last_scan_jiffies
= jiffies
;
3718 priv
->next_scan_jiffies
= 0;
3721 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
3722 static void iwl4965_rx_scan_complete_notif(struct iwl_priv
*priv
,
3723 struct iwl4965_rx_mem_buffer
*rxb
)
3725 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3726 struct iwl4965_scancomplete_notification
*scan_notif
= (void *)pkt
->u
.raw
;
3728 IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
3729 scan_notif
->scanned_channels
,
3730 scan_notif
->tsf_low
,
3731 scan_notif
->tsf_high
, scan_notif
->status
);
3733 /* The HW is no longer scanning */
3734 clear_bit(STATUS_SCAN_HW
, &priv
->status
);
3736 /* The scan completion notification came in, so kill that timer... */
3737 cancel_delayed_work(&priv
->scan_check
);
3739 IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
3740 (priv
->scan_bands
== 2) ? "2.4" : "5.2",
3741 jiffies_to_msecs(elapsed_jiffies
3742 (priv
->scan_pass_start
, jiffies
)));
3744 /* Remove this scanned band from the list
3745 * of pending bands to scan */
3748 /* If a request to abort was given, or the scan did not succeed
3749 * then we reset the scan state machine and terminate,
3750 * re-queuing another scan if one has been requested */
3751 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
3752 IWL_DEBUG_INFO("Aborted scan completed.\n");
3753 clear_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
3755 /* If there are more bands on this scan pass reschedule */
3756 if (priv
->scan_bands
> 0)
3760 priv
->last_scan_jiffies
= jiffies
;
3761 priv
->next_scan_jiffies
= 0;
3762 IWL_DEBUG_INFO("Setting scan to off\n");
3764 clear_bit(STATUS_SCANNING
, &priv
->status
);
3766 IWL_DEBUG_INFO("Scan took %dms\n",
3767 jiffies_to_msecs(elapsed_jiffies(priv
->scan_start
, jiffies
)));
3769 queue_work(priv
->workqueue
, &priv
->scan_completed
);
3774 priv
->scan_pass_start
= jiffies
;
3775 queue_work(priv
->workqueue
, &priv
->request_scan
);
3778 /* Handle notification from uCode that card's power state is changing
3779 * due to software, hardware, or critical temperature RFKILL */
3780 static void iwl4965_rx_card_state_notif(struct iwl_priv
*priv
,
3781 struct iwl4965_rx_mem_buffer
*rxb
)
3783 struct iwl4965_rx_packet
*pkt
= (void *)rxb
->skb
->data
;
3784 u32 flags
= le32_to_cpu(pkt
->u
.card_state_notif
.flags
);
3785 unsigned long status
= priv
->status
;
3787 IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
3788 (flags
& HW_CARD_DISABLED
) ? "Kill" : "On",
3789 (flags
& SW_CARD_DISABLED
) ? "Kill" : "On");
3791 if (flags
& (SW_CARD_DISABLED
| HW_CARD_DISABLED
|
3792 RF_CARD_DISABLED
)) {
3794 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3795 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3797 if (!iwl4965_grab_nic_access(priv
)) {
3798 iwl4965_write_direct32(
3799 priv
, HBUS_TARG_MBX_C
,
3800 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
3802 iwl4965_release_nic_access(priv
);
3805 if (!(flags
& RXON_CARD_DISABLED
)) {
3806 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
3807 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
3808 if (!iwl4965_grab_nic_access(priv
)) {
3809 iwl4965_write_direct32(
3810 priv
, HBUS_TARG_MBX_C
,
3811 HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED
);
3813 iwl4965_release_nic_access(priv
);
3817 if (flags
& RF_CARD_DISABLED
) {
3818 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_SET
,
3819 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT
);
3820 iwl4965_read32(priv
, CSR_UCODE_DRV_GP1
);
3821 if (!iwl4965_grab_nic_access(priv
))
3822 iwl4965_release_nic_access(priv
);
3826 if (flags
& HW_CARD_DISABLED
)
3827 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3829 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
3832 if (flags
& SW_CARD_DISABLED
)
3833 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3835 clear_bit(STATUS_RF_KILL_SW
, &priv
->status
);
3837 if (!(flags
& RXON_CARD_DISABLED
))
3838 iwl4965_scan_cancel(priv
);
3840 if ((test_bit(STATUS_RF_KILL_HW
, &status
) !=
3841 test_bit(STATUS_RF_KILL_HW
, &priv
->status
)) ||
3842 (test_bit(STATUS_RF_KILL_SW
, &status
) !=
3843 test_bit(STATUS_RF_KILL_SW
, &priv
->status
)))
3844 queue_work(priv
->workqueue
, &priv
->rf_kill
);
3846 wake_up_interruptible(&priv
->wait_command_queue
);
3850 * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
3852 * Setup the RX handlers for each of the reply types sent from the uCode
3855 * This function chains into the hardware specific files for them to setup
3856 * any hardware specific handlers as well.
3858 static void iwl4965_setup_rx_handlers(struct iwl_priv
*priv
)
3860 priv
->rx_handlers
[REPLY_ALIVE
] = iwl4965_rx_reply_alive
;
3861 priv
->rx_handlers
[REPLY_ADD_STA
] = iwl4965_rx_reply_add_sta
;
3862 priv
->rx_handlers
[REPLY_ERROR
] = iwl4965_rx_reply_error
;
3863 priv
->rx_handlers
[CHANNEL_SWITCH_NOTIFICATION
] = iwl4965_rx_csa
;
3864 priv
->rx_handlers
[SPECTRUM_MEASURE_NOTIFICATION
] =
3865 iwl4965_rx_spectrum_measure_notif
;
3866 priv
->rx_handlers
[PM_SLEEP_NOTIFICATION
] = iwl4965_rx_pm_sleep_notif
;
3867 priv
->rx_handlers
[PM_DEBUG_STATISTIC_NOTIFIC
] =
3868 iwl4965_rx_pm_debug_statistics_notif
;
3869 priv
->rx_handlers
[BEACON_NOTIFICATION
] = iwl4965_rx_beacon_notif
;
3872 * The same handler is used for both the REPLY to a discrete
3873 * statistics request from the host as well as for the periodic
3874 * statistics notifications (after received beacons) from the uCode.
3876 priv
->rx_handlers
[REPLY_STATISTICS_CMD
] = iwl4965_hw_rx_statistics
;
3877 priv
->rx_handlers
[STATISTICS_NOTIFICATION
] = iwl4965_hw_rx_statistics
;
3879 priv
->rx_handlers
[REPLY_SCAN_CMD
] = iwl4965_rx_reply_scan
;
3880 priv
->rx_handlers
[SCAN_START_NOTIFICATION
] = iwl4965_rx_scan_start_notif
;
3881 priv
->rx_handlers
[SCAN_RESULTS_NOTIFICATION
] =
3882 iwl4965_rx_scan_results_notif
;
3883 priv
->rx_handlers
[SCAN_COMPLETE_NOTIFICATION
] =
3884 iwl4965_rx_scan_complete_notif
;
3885 priv
->rx_handlers
[CARD_STATE_NOTIFICATION
] = iwl4965_rx_card_state_notif
;
3886 priv
->rx_handlers
[REPLY_TX
] = iwl4965_rx_reply_tx
;
3888 /* Set up hardware specific Rx handlers */
3889 iwl4965_hw_rx_handler_setup(priv
);
3893 * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
3894 * @rxb: Rx buffer to reclaim
3896 * If an Rx buffer has an async callback associated with it the callback
3897 * will be executed. The attached skb (if present) will only be freed
3898 * if the callback returns 1
3900 static void iwl4965_tx_cmd_complete(struct iwl_priv
*priv
,
3901 struct iwl4965_rx_mem_buffer
*rxb
)
3903 struct iwl4965_rx_packet
*pkt
= (struct iwl4965_rx_packet
*)rxb
->skb
->data
;
3904 u16 sequence
= le16_to_cpu(pkt
->hdr
.sequence
);
3905 int txq_id
= SEQ_TO_QUEUE(sequence
);
3906 int index
= SEQ_TO_INDEX(sequence
);
3907 int huge
= sequence
& SEQ_HUGE_FRAME
;
3909 struct iwl4965_cmd
*cmd
;
3911 /* If a Tx command is being handled and it isn't in the actual
3912 * command queue then there a command routing bug has been introduced
3913 * in the queue management code. */
3914 if (txq_id
!= IWL_CMD_QUEUE_NUM
)
3915 IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
3916 txq_id
, pkt
->hdr
.cmd
);
3917 BUG_ON(txq_id
!= IWL_CMD_QUEUE_NUM
);
3919 cmd_index
= get_cmd_index(&priv
->txq
[IWL_CMD_QUEUE_NUM
].q
, index
, huge
);
3920 cmd
= &priv
->txq
[IWL_CMD_QUEUE_NUM
].cmd
[cmd_index
];
3922 /* Input error checking is done when commands are added to queue. */
3923 if (cmd
->meta
.flags
& CMD_WANT_SKB
) {
3924 cmd
->meta
.source
->u
.skb
= rxb
->skb
;
3926 } else if (cmd
->meta
.u
.callback
&&
3927 !cmd
->meta
.u
.callback(priv
, cmd
, rxb
->skb
))
3930 iwl4965_tx_queue_reclaim(priv
, txq_id
, index
);
3932 if (!(cmd
->meta
.flags
& CMD_ASYNC
)) {
3933 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
3934 wake_up_interruptible(&priv
->wait_command_queue
);
3938 /************************** RX-FUNCTIONS ****************************/
3940 * Rx theory of operation
3942 * Driver allocates a circular buffer of Receive Buffer Descriptors (RBDs),
3943 * each of which point to Receive Buffers to be filled by 4965. These get
3944 * used not only for Rx frames, but for any command response or notification
3945 * from the 4965. The driver and 4965 manage the Rx buffers by means
3946 * of indexes into the circular buffer.
3949 * The host/firmware share two index registers for managing the Rx buffers.
3951 * The READ index maps to the first position that the firmware may be writing
3952 * to -- the driver can read up to (but not including) this position and get
3954 * The READ index is managed by the firmware once the card is enabled.
3956 * The WRITE index maps to the last position the driver has read from -- the
3957 * position preceding WRITE is the last slot the firmware can place a packet.
3959 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
3962 * During initialization, the host sets up the READ queue position to the first
3963 * INDEX position, and WRITE to the last (READ - 1 wrapped)
3965 * When the firmware places a packet in a buffer, it will advance the READ index
3966 * and fire the RX interrupt. The driver can then query the READ index and
3967 * process as many packets as possible, moving the WRITE index forward as it
3968 * resets the Rx queue buffers with new memory.
3970 * The management in the driver is as follows:
3971 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
3972 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
3973 * to replenish the iwl->rxq->rx_free.
3974 * + In iwl4965_rx_replenish (scheduled) if 'processed' != 'read' then the
3975 * iwl->rxq is replenished and the READ INDEX is updated (updating the
3976 * 'processed' and 'read' driver indexes as well)
3977 * + A received packet is processed and handed to the kernel network stack,
3978 * detached from the iwl->rxq. The driver 'processed' index is updated.
3979 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
3980 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
3981 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
3982 * were enough free buffers and RX_STALLED is set it is cleared.
3987 * iwl4965_rx_queue_alloc() Allocates rx_free
3988 * iwl4965_rx_replenish() Replenishes rx_free list from rx_used, and calls
3989 * iwl4965_rx_queue_restock
3990 * iwl4965_rx_queue_restock() Moves available buffers from rx_free into Rx
3991 * queue, updates firmware pointers, and updates
3992 * the WRITE index. If insufficient rx_free buffers
3993 * are available, schedules iwl4965_rx_replenish
3995 * -- enable interrupts --
3996 * ISR - iwl4965_rx() Detach iwl4965_rx_mem_buffers from pool up to the
3997 * READ INDEX, detaching the SKB from the pool.
3998 * Moves the packet buffer from queue to rx_used.
3999 * Calls iwl4965_rx_queue_restock to refill any empty
4006 * iwl4965_rx_queue_space - Return number of free slots available in queue.
4008 static int iwl4965_rx_queue_space(const struct iwl4965_rx_queue
*q
)
4010 int s
= q
->read
- q
->write
;
4013 /* keep some buffer to not confuse full and empty queue */
4021 * iwl4965_rx_queue_update_write_ptr - Update the write pointer for the RX queue
4023 int iwl4965_rx_queue_update_write_ptr(struct iwl_priv
*priv
, struct iwl4965_rx_queue
*q
)
4027 unsigned long flags
;
4029 spin_lock_irqsave(&q
->lock
, flags
);
4031 if (q
->need_update
== 0)
4034 /* If power-saving is in use, make sure device is awake */
4035 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
4036 reg
= iwl4965_read32(priv
, CSR_UCODE_DRV_GP1
);
4038 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
4039 iwl4965_set_bit(priv
, CSR_GP_CNTRL
,
4040 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
4044 rc
= iwl4965_grab_nic_access(priv
);
4048 /* Device expects a multiple of 8 */
4049 iwl4965_write_direct32(priv
, FH_RSCSR_CHNL0_WPTR
,
4051 iwl4965_release_nic_access(priv
);
4053 /* Else device is assumed to be awake */
4055 /* Device expects a multiple of 8 */
4056 iwl4965_write32(priv
, FH_RSCSR_CHNL0_WPTR
, q
->write
& ~0x7);
4062 spin_unlock_irqrestore(&q
->lock
, flags
);
4067 * iwl4965_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
4069 static inline __le32
iwl4965_dma_addr2rbd_ptr(struct iwl_priv
*priv
,
4070 dma_addr_t dma_addr
)
4072 return cpu_to_le32((u32
)(dma_addr
>> 8));
4077 * iwl4965_rx_queue_restock - refill RX queue from pre-allocated pool
4079 * If there are slots in the RX queue that need to be restocked,
4080 * and we have free pre-allocated buffers, fill the ranks as much
4081 * as we can, pulling from rx_free.
4083 * This moves the 'write' index forward to catch up with 'processed', and
4084 * also updates the memory address in the firmware to reference the new
4087 static int iwl4965_rx_queue_restock(struct iwl_priv
*priv
)
4089 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
4090 struct list_head
*element
;
4091 struct iwl4965_rx_mem_buffer
*rxb
;
4092 unsigned long flags
;
4095 spin_lock_irqsave(&rxq
->lock
, flags
);
4096 write
= rxq
->write
& ~0x7;
4097 while ((iwl4965_rx_queue_space(rxq
) > 0) && (rxq
->free_count
)) {
4098 /* Get next free Rx buffer, remove from free list */
4099 element
= rxq
->rx_free
.next
;
4100 rxb
= list_entry(element
, struct iwl4965_rx_mem_buffer
, list
);
4103 /* Point to Rx buffer via next RBD in circular buffer */
4104 rxq
->bd
[rxq
->write
] = iwl4965_dma_addr2rbd_ptr(priv
, rxb
->dma_addr
);
4105 rxq
->queue
[rxq
->write
] = rxb
;
4106 rxq
->write
= (rxq
->write
+ 1) & RX_QUEUE_MASK
;
4109 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4110 /* If the pre-allocated buffer pool is dropping low, schedule to
4112 if (rxq
->free_count
<= RX_LOW_WATERMARK
)
4113 queue_work(priv
->workqueue
, &priv
->rx_replenish
);
4116 /* If we've added more space for the firmware to place data, tell it.
4117 * Increment device's write pointer in multiples of 8. */
4118 if ((write
!= (rxq
->write
& ~0x7))
4119 || (abs(rxq
->write
- rxq
->read
) > 7)) {
4120 spin_lock_irqsave(&rxq
->lock
, flags
);
4121 rxq
->need_update
= 1;
4122 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4123 rc
= iwl4965_rx_queue_update_write_ptr(priv
, rxq
);
4132 * iwl4965_rx_replenish - Move all used packet from rx_used to rx_free
4134 * When moving to rx_free an SKB is allocated for the slot.
4136 * Also restock the Rx queue via iwl4965_rx_queue_restock.
4137 * This is called as a scheduled work item (except for during initialization)
4139 static void iwl4965_rx_allocate(struct iwl_priv
*priv
)
4141 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
4142 struct list_head
*element
;
4143 struct iwl4965_rx_mem_buffer
*rxb
;
4144 unsigned long flags
;
4145 spin_lock_irqsave(&rxq
->lock
, flags
);
4146 while (!list_empty(&rxq
->rx_used
)) {
4147 element
= rxq
->rx_used
.next
;
4148 rxb
= list_entry(element
, struct iwl4965_rx_mem_buffer
, list
);
4150 /* Alloc a new receive buffer */
4152 alloc_skb(priv
->hw_setting
.rx_buf_size
,
4153 __GFP_NOWARN
| GFP_ATOMIC
);
4155 if (net_ratelimit())
4156 printk(KERN_CRIT DRV_NAME
4157 ": Can not allocate SKB buffers\n");
4158 /* We don't reschedule replenish work here -- we will
4159 * call the restock method and if it still needs
4160 * more buffers it will schedule replenish */
4163 priv
->alloc_rxb_skb
++;
4166 /* Get physical address of RB/SKB */
4168 pci_map_single(priv
->pci_dev
, rxb
->skb
->data
,
4169 priv
->hw_setting
.rx_buf_size
, PCI_DMA_FROMDEVICE
);
4170 list_add_tail(&rxb
->list
, &rxq
->rx_free
);
4173 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4177 * this should be called while priv->lock is locked
4179 static void __iwl4965_rx_replenish(void *data
)
4181 struct iwl_priv
*priv
= data
;
4183 iwl4965_rx_allocate(priv
);
4184 iwl4965_rx_queue_restock(priv
);
4188 void iwl4965_rx_replenish(void *data
)
4190 struct iwl_priv
*priv
= data
;
4191 unsigned long flags
;
4193 iwl4965_rx_allocate(priv
);
4195 spin_lock_irqsave(&priv
->lock
, flags
);
4196 iwl4965_rx_queue_restock(priv
);
4197 spin_unlock_irqrestore(&priv
->lock
, flags
);
4200 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
4201 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
4202 * This free routine walks the list of POOL entries and if SKB is set to
4203 * non NULL it is unmapped and freed
4205 static void iwl4965_rx_queue_free(struct iwl_priv
*priv
, struct iwl4965_rx_queue
*rxq
)
4208 for (i
= 0; i
< RX_QUEUE_SIZE
+ RX_FREE_BUFFERS
; i
++) {
4209 if (rxq
->pool
[i
].skb
!= NULL
) {
4210 pci_unmap_single(priv
->pci_dev
,
4211 rxq
->pool
[i
].dma_addr
,
4212 priv
->hw_setting
.rx_buf_size
,
4213 PCI_DMA_FROMDEVICE
);
4214 dev_kfree_skb(rxq
->pool
[i
].skb
);
4218 pci_free_consistent(priv
->pci_dev
, 4 * RX_QUEUE_SIZE
, rxq
->bd
,
4223 int iwl4965_rx_queue_alloc(struct iwl_priv
*priv
)
4225 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
4226 struct pci_dev
*dev
= priv
->pci_dev
;
4229 spin_lock_init(&rxq
->lock
);
4230 INIT_LIST_HEAD(&rxq
->rx_free
);
4231 INIT_LIST_HEAD(&rxq
->rx_used
);
4233 /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
4234 rxq
->bd
= pci_alloc_consistent(dev
, 4 * RX_QUEUE_SIZE
, &rxq
->dma_addr
);
4238 /* Fill the rx_used queue with _all_ of the Rx buffers */
4239 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++)
4240 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
4242 /* Set us so that we have processed and used all buffers, but have
4243 * not restocked the Rx queue with fresh buffers */
4244 rxq
->read
= rxq
->write
= 0;
4245 rxq
->free_count
= 0;
4246 rxq
->need_update
= 0;
4250 void iwl4965_rx_queue_reset(struct iwl_priv
*priv
, struct iwl4965_rx_queue
*rxq
)
4252 unsigned long flags
;
4254 spin_lock_irqsave(&rxq
->lock
, flags
);
4255 INIT_LIST_HEAD(&rxq
->rx_free
);
4256 INIT_LIST_HEAD(&rxq
->rx_used
);
4257 /* Fill the rx_used queue with _all_ of the Rx buffers */
4258 for (i
= 0; i
< RX_FREE_BUFFERS
+ RX_QUEUE_SIZE
; i
++) {
4259 /* In the reset function, these buffers may have been allocated
4260 * to an SKB, so we need to unmap and free potential storage */
4261 if (rxq
->pool
[i
].skb
!= NULL
) {
4262 pci_unmap_single(priv
->pci_dev
,
4263 rxq
->pool
[i
].dma_addr
,
4264 priv
->hw_setting
.rx_buf_size
,
4265 PCI_DMA_FROMDEVICE
);
4266 priv
->alloc_rxb_skb
--;
4267 dev_kfree_skb(rxq
->pool
[i
].skb
);
4268 rxq
->pool
[i
].skb
= NULL
;
4270 list_add_tail(&rxq
->pool
[i
].list
, &rxq
->rx_used
);
4273 /* Set us so that we have processed and used all buffers, but have
4274 * not restocked the Rx queue with fresh buffers */
4275 rxq
->read
= rxq
->write
= 0;
4276 rxq
->free_count
= 0;
4277 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4280 /* Convert linear signal-to-noise ratio into dB */
4281 static u8 ratio2dB
[100] = {
4282 /* 0 1 2 3 4 5 6 7 8 9 */
4283 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
4284 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
4285 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
4286 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
4287 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
4288 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
4289 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
4290 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
4291 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
4292 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
4295 /* Calculates a relative dB value from a ratio of linear
4296 * (i.e. not dB) signal levels.
4297 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
4298 int iwl4965_calc_db_from_ratio(int sig_ratio
)
4300 /* 1000:1 or higher just report as 60 dB */
4301 if (sig_ratio
>= 1000)
4304 /* 100:1 or higher, divide by 10 and use table,
4305 * add 20 dB to make up for divide by 10 */
4306 if (sig_ratio
>= 100)
4307 return (20 + (int)ratio2dB
[sig_ratio
/10]);
4309 /* We shouldn't see this */
4313 /* Use table for ratios 1:1 - 99:1 */
4314 return (int)ratio2dB
[sig_ratio
];
4317 #define PERFECT_RSSI (-20) /* dBm */
4318 #define WORST_RSSI (-95) /* dBm */
4319 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
4321 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
4322 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
4323 * about formulas used below. */
4324 int iwl4965_calc_sig_qual(int rssi_dbm
, int noise_dbm
)
4327 int degradation
= PERFECT_RSSI
- rssi_dbm
;
4329 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
4330 * as indicator; formula is (signal dbm - noise dbm).
4331 * SNR at or above 40 is a great signal (100%).
4332 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
4333 * Weakest usable signal is usually 10 - 15 dB SNR. */
4335 if (rssi_dbm
- noise_dbm
>= 40)
4337 else if (rssi_dbm
< noise_dbm
)
4339 sig_qual
= ((rssi_dbm
- noise_dbm
) * 5) / 2;
4341 /* Else use just the signal level.
4342 * This formula is a least squares fit of data points collected and
4343 * compared with a reference system that had a percentage (%) display
4344 * for signal quality. */
4346 sig_qual
= (100 * (RSSI_RANGE
* RSSI_RANGE
) - degradation
*
4347 (15 * RSSI_RANGE
+ 62 * degradation
)) /
4348 (RSSI_RANGE
* RSSI_RANGE
);
4352 else if (sig_qual
< 1)
4359 * iwl4965_rx_handle - Main entry function for receiving responses from uCode
4361 * Uses the priv->rx_handlers callback function array to invoke
4362 * the appropriate handlers, including command responses,
4363 * frame-received notifications, and other notifications.
4365 static void iwl4965_rx_handle(struct iwl_priv
*priv
)
4367 struct iwl4965_rx_mem_buffer
*rxb
;
4368 struct iwl4965_rx_packet
*pkt
;
4369 struct iwl4965_rx_queue
*rxq
= &priv
->rxq
;
4372 unsigned long flags
;
4376 /* uCode's read index (stored in shared DRAM) indicates the last Rx
4377 * buffer that the driver may process (last buffer filled by ucode). */
4378 r
= iwl4965_hw_get_rx_read(priv
);
4381 /* Rx interrupt, but nothing sent from uCode */
4383 IWL_DEBUG(IWL_DL_RX
| IWL_DL_ISR
, "r = %d, i = %d\n", r
, i
);
4385 if (iwl4965_rx_queue_space(rxq
) > (RX_QUEUE_SIZE
/ 2))
4389 rxb
= rxq
->queue
[i
];
4391 /* If an RXB doesn't have a Rx queue slot associated with it,
4392 * then a bug has been introduced in the queue refilling
4393 * routines -- catch it here */
4394 BUG_ON(rxb
== NULL
);
4396 rxq
->queue
[i
] = NULL
;
4398 pci_dma_sync_single_for_cpu(priv
->pci_dev
, rxb
->dma_addr
,
4399 priv
->hw_setting
.rx_buf_size
,
4400 PCI_DMA_FROMDEVICE
);
4401 pkt
= (struct iwl4965_rx_packet
*)rxb
->skb
->data
;
4403 /* Reclaim a command buffer only if this packet is a response
4404 * to a (driver-originated) command.
4405 * If the packet (e.g. Rx frame) originated from uCode,
4406 * there is no command buffer to reclaim.
4407 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
4408 * but apparently a few don't get set; catch them here. */
4409 reclaim
= !(pkt
->hdr
.sequence
& SEQ_RX_FRAME
) &&
4410 (pkt
->hdr
.cmd
!= REPLY_RX_PHY_CMD
) &&
4411 (pkt
->hdr
.cmd
!= REPLY_4965_RX
) &&
4412 (pkt
->hdr
.cmd
!= REPLY_COMPRESSED_BA
) &&
4413 (pkt
->hdr
.cmd
!= STATISTICS_NOTIFICATION
) &&
4414 (pkt
->hdr
.cmd
!= REPLY_TX
);
4416 /* Based on type of command response or notification,
4417 * handle those that need handling via function in
4418 * rx_handlers table. See iwl4965_setup_rx_handlers() */
4419 if (priv
->rx_handlers
[pkt
->hdr
.cmd
]) {
4420 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4421 "r = %d, i = %d, %s, 0x%02x\n", r
, i
,
4422 get_cmd_string(pkt
->hdr
.cmd
), pkt
->hdr
.cmd
);
4423 priv
->rx_handlers
[pkt
->hdr
.cmd
] (priv
, rxb
);
4425 /* No handling needed */
4426 IWL_DEBUG(IWL_DL_HOST_COMMAND
| IWL_DL_RX
| IWL_DL_ISR
,
4427 "r %d i %d No handler needed for %s, 0x%02x\n",
4428 r
, i
, get_cmd_string(pkt
->hdr
.cmd
),
4433 /* Invoke any callbacks, transfer the skb to caller, and
4434 * fire off the (possibly) blocking iwl4965_send_cmd()
4435 * as we reclaim the driver command queue */
4436 if (rxb
&& rxb
->skb
)
4437 iwl4965_tx_cmd_complete(priv
, rxb
);
4439 IWL_WARNING("Claim null rxb?\n");
4442 /* For now we just don't re-use anything. We can tweak this
4443 * later to try and re-use notification packets and SKBs that
4444 * fail to Rx correctly */
4445 if (rxb
->skb
!= NULL
) {
4446 priv
->alloc_rxb_skb
--;
4447 dev_kfree_skb_any(rxb
->skb
);
4451 pci_unmap_single(priv
->pci_dev
, rxb
->dma_addr
,
4452 priv
->hw_setting
.rx_buf_size
,
4453 PCI_DMA_FROMDEVICE
);
4454 spin_lock_irqsave(&rxq
->lock
, flags
);
4455 list_add_tail(&rxb
->list
, &priv
->rxq
.rx_used
);
4456 spin_unlock_irqrestore(&rxq
->lock
, flags
);
4457 i
= (i
+ 1) & RX_QUEUE_MASK
;
4458 /* If there are a lot of unused frames,
4459 * restock the Rx queue so ucode wont assert. */
4464 __iwl4965_rx_replenish(priv
);
4470 /* Backtrack one entry */
4472 iwl4965_rx_queue_restock(priv
);
4476 * iwl4965_tx_queue_update_write_ptr - Send new write index to hardware
4478 static int iwl4965_tx_queue_update_write_ptr(struct iwl_priv
*priv
,
4479 struct iwl4965_tx_queue
*txq
)
4483 int txq_id
= txq
->q
.id
;
4485 if (txq
->need_update
== 0)
4488 /* if we're trying to save power */
4489 if (test_bit(STATUS_POWER_PMI
, &priv
->status
)) {
4490 /* wake up nic if it's powered down ...
4491 * uCode will wake up, and interrupt us again, so next
4492 * time we'll skip this part. */
4493 reg
= iwl4965_read32(priv
, CSR_UCODE_DRV_GP1
);
4495 if (reg
& CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP
) {
4496 IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg
);
4497 iwl4965_set_bit(priv
, CSR_GP_CNTRL
,
4498 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
4502 /* restore this queue's parameters in nic hardware. */
4503 rc
= iwl4965_grab_nic_access(priv
);
4506 iwl4965_write_direct32(priv
, HBUS_TARG_WRPTR
,
4507 txq
->q
.write_ptr
| (txq_id
<< 8));
4508 iwl4965_release_nic_access(priv
);
4510 /* else not in power-save mode, uCode will never sleep when we're
4511 * trying to tx (during RFKILL, we're not trying to tx). */
4513 iwl4965_write32(priv
, HBUS_TARG_WRPTR
,
4514 txq
->q
.write_ptr
| (txq_id
<< 8));
4516 txq
->need_update
= 0;
4521 #ifdef CONFIG_IWLWIFI_DEBUG
4522 static void iwl4965_print_rx_config_cmd(struct iwl4965_rxon_cmd
*rxon
)
4524 DECLARE_MAC_BUF(mac
);
4526 IWL_DEBUG_RADIO("RX CONFIG:\n");
4527 iwl_print_hex_dump(IWL_DL_RADIO
, (u8
*) rxon
, sizeof(*rxon
));
4528 IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon
->channel
));
4529 IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon
->flags
));
4530 IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
4531 le32_to_cpu(rxon
->filter_flags
));
4532 IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon
->dev_type
);
4533 IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
4534 rxon
->ofdm_basic_rates
);
4535 IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon
->cck_basic_rates
);
4536 IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
4537 print_mac(mac
, rxon
->node_addr
));
4538 IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
4539 print_mac(mac
, rxon
->bssid_addr
));
4540 IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon
->assoc_id
));
4544 static void iwl4965_enable_interrupts(struct iwl_priv
*priv
)
4546 IWL_DEBUG_ISR("Enabling interrupts\n");
4547 set_bit(STATUS_INT_ENABLED
, &priv
->status
);
4548 iwl4965_write32(priv
, CSR_INT_MASK
, CSR_INI_SET_MASK
);
4551 static inline void iwl4965_disable_interrupts(struct iwl_priv
*priv
)
4553 clear_bit(STATUS_INT_ENABLED
, &priv
->status
);
4555 /* disable interrupts from uCode/NIC to host */
4556 iwl4965_write32(priv
, CSR_INT_MASK
, 0x00000000);
4558 /* acknowledge/clear/reset any interrupts still pending
4559 * from uCode or flow handler (Rx/Tx DMA) */
4560 iwl4965_write32(priv
, CSR_INT
, 0xffffffff);
4561 iwl4965_write32(priv
, CSR_FH_INT_STATUS
, 0xffffffff);
4562 IWL_DEBUG_ISR("Disabled interrupts\n");
4565 static const char *desc_lookup(int i
)
4573 return "BAD_CHECKSUM";
4575 return "NMI_INTERRUPT";
4579 return "FATAL_ERROR";
4585 #define ERROR_START_OFFSET (1 * sizeof(u32))
4586 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
4588 static void iwl4965_dump_nic_error_log(struct iwl_priv
*priv
)
4591 u32 desc
, time
, count
, base
, data1
;
4592 u32 blink1
, blink2
, ilink1
, ilink2
;
4595 base
= le32_to_cpu(priv
->card_alive
.error_event_table_ptr
);
4597 if (!iwl4965_hw_valid_rtc_data_addr(base
)) {
4598 IWL_ERROR("Not valid error log pointer 0x%08X\n", base
);
4602 rc
= iwl4965_grab_nic_access(priv
);
4604 IWL_WARNING("Can not read from adapter at this time.\n");
4608 count
= iwl4965_read_targ_mem(priv
, base
);
4610 if (ERROR_START_OFFSET
<= count
* ERROR_ELEM_SIZE
) {
4611 IWL_ERROR("Start IWL Error Log Dump:\n");
4612 IWL_ERROR("Status: 0x%08lX, count: %d\n", priv
->status
, count
);
4615 desc
= iwl4965_read_targ_mem(priv
, base
+ 1 * sizeof(u32
));
4616 blink1
= iwl4965_read_targ_mem(priv
, base
+ 3 * sizeof(u32
));
4617 blink2
= iwl4965_read_targ_mem(priv
, base
+ 4 * sizeof(u32
));
4618 ilink1
= iwl4965_read_targ_mem(priv
, base
+ 5 * sizeof(u32
));
4619 ilink2
= iwl4965_read_targ_mem(priv
, base
+ 6 * sizeof(u32
));
4620 data1
= iwl4965_read_targ_mem(priv
, base
+ 7 * sizeof(u32
));
4621 data2
= iwl4965_read_targ_mem(priv
, base
+ 8 * sizeof(u32
));
4622 line
= iwl4965_read_targ_mem(priv
, base
+ 9 * sizeof(u32
));
4623 time
= iwl4965_read_targ_mem(priv
, base
+ 11 * sizeof(u32
));
4625 IWL_ERROR("Desc Time "
4626 "data1 data2 line\n");
4627 IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n",
4628 desc_lookup(desc
), desc
, time
, data1
, data2
, line
);
4629 IWL_ERROR("blink1 blink2 ilink1 ilink2\n");
4630 IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1
, blink2
,
4633 iwl4965_release_nic_access(priv
);
4636 #define EVENT_START_OFFSET (4 * sizeof(u32))
4639 * iwl4965_print_event_log - Dump error event log to syslog
4641 * NOTE: Must be called with iwl4965_grab_nic_access() already obtained!
4643 static void iwl4965_print_event_log(struct iwl_priv
*priv
, u32 start_idx
,
4644 u32 num_events
, u32 mode
)
4647 u32 base
; /* SRAM byte address of event log header */
4648 u32 event_size
; /* 2 u32s, or 3 u32s if timestamp recorded */
4649 u32 ptr
; /* SRAM byte address of log data */
4650 u32 ev
, time
, data
; /* event log data */
4652 if (num_events
== 0)
4655 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4658 event_size
= 2 * sizeof(u32
);
4660 event_size
= 3 * sizeof(u32
);
4662 ptr
= base
+ EVENT_START_OFFSET
+ (start_idx
* event_size
);
4664 /* "time" is actually "data" for mode 0 (no timestamp).
4665 * place event id # at far right for easier visual parsing. */
4666 for (i
= 0; i
< num_events
; i
++) {
4667 ev
= iwl4965_read_targ_mem(priv
, ptr
);
4669 time
= iwl4965_read_targ_mem(priv
, ptr
);
4672 IWL_ERROR("0x%08x\t%04u\n", time
, ev
); /* data, ev */
4674 data
= iwl4965_read_targ_mem(priv
, ptr
);
4676 IWL_ERROR("%010u\t0x%08x\t%04u\n", time
, data
, ev
);
4681 static void iwl4965_dump_nic_event_log(struct iwl_priv
*priv
)
4684 u32 base
; /* SRAM byte address of event log header */
4685 u32 capacity
; /* event log capacity in # entries */
4686 u32 mode
; /* 0 - no timestamp, 1 - timestamp recorded */
4687 u32 num_wraps
; /* # times uCode wrapped to top of log */
4688 u32 next_entry
; /* index of next entry to be written by uCode */
4689 u32 size
; /* # entries that we'll print */
4691 base
= le32_to_cpu(priv
->card_alive
.log_event_table_ptr
);
4692 if (!iwl4965_hw_valid_rtc_data_addr(base
)) {
4693 IWL_ERROR("Invalid event log pointer 0x%08X\n", base
);
4697 rc
= iwl4965_grab_nic_access(priv
);
4699 IWL_WARNING("Can not read from adapter at this time.\n");
4703 /* event log header */
4704 capacity
= iwl4965_read_targ_mem(priv
, base
);
4705 mode
= iwl4965_read_targ_mem(priv
, base
+ (1 * sizeof(u32
)));
4706 num_wraps
= iwl4965_read_targ_mem(priv
, base
+ (2 * sizeof(u32
)));
4707 next_entry
= iwl4965_read_targ_mem(priv
, base
+ (3 * sizeof(u32
)));
4709 size
= num_wraps
? capacity
: next_entry
;
4711 /* bail out if nothing in log */
4713 IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
4714 iwl4965_release_nic_access(priv
);
4718 IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
4721 /* if uCode has wrapped back to top of log, start at the oldest entry,
4722 * i.e the next one that uCode would fill. */
4724 iwl4965_print_event_log(priv
, next_entry
,
4725 capacity
- next_entry
, mode
);
4727 /* (then/else) start at top of log */
4728 iwl4965_print_event_log(priv
, 0, next_entry
, mode
);
4730 iwl4965_release_nic_access(priv
);
4734 * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
4736 static void iwl4965_irq_handle_error(struct iwl_priv
*priv
)
4738 /* Set the FW error flag -- cleared on iwl4965_down */
4739 set_bit(STATUS_FW_ERROR
, &priv
->status
);
4741 /* Cancel currently queued command. */
4742 clear_bit(STATUS_HCMD_ACTIVE
, &priv
->status
);
4744 #ifdef CONFIG_IWLWIFI_DEBUG
4745 if (iwl_debug_level
& IWL_DL_FW_ERRORS
) {
4746 iwl4965_dump_nic_error_log(priv
);
4747 iwl4965_dump_nic_event_log(priv
);
4748 iwl4965_print_rx_config_cmd(&priv
->staging_rxon
);
4752 wake_up_interruptible(&priv
->wait_command_queue
);
4754 /* Keep the restart process from trying to send host
4755 * commands by clearing the INIT status bit */
4756 clear_bit(STATUS_READY
, &priv
->status
);
4758 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
4759 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_FW_ERRORS
,
4760 "Restarting adapter due to uCode error.\n");
4762 if (iwl4965_is_associated(priv
)) {
4763 memcpy(&priv
->recovery_rxon
, &priv
->active_rxon
,
4764 sizeof(priv
->recovery_rxon
));
4765 priv
->error_recovering
= 1;
4767 queue_work(priv
->workqueue
, &priv
->restart
);
4771 static void iwl4965_error_recovery(struct iwl_priv
*priv
)
4773 unsigned long flags
;
4775 memcpy(&priv
->staging_rxon
, &priv
->recovery_rxon
,
4776 sizeof(priv
->staging_rxon
));
4777 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
4778 iwl4965_commit_rxon(priv
);
4780 iwl4965_rxon_add_station(priv
, priv
->bssid
, 1);
4782 spin_lock_irqsave(&priv
->lock
, flags
);
4783 priv
->assoc_id
= le16_to_cpu(priv
->staging_rxon
.assoc_id
);
4784 priv
->error_recovering
= 0;
4785 spin_unlock_irqrestore(&priv
->lock
, flags
);
4788 static void iwl4965_irq_tasklet(struct iwl_priv
*priv
)
4790 u32 inta
, handled
= 0;
4792 unsigned long flags
;
4793 #ifdef CONFIG_IWLWIFI_DEBUG
4797 spin_lock_irqsave(&priv
->lock
, flags
);
4799 /* Ack/clear/reset pending uCode interrupts.
4800 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
4801 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
4802 inta
= iwl4965_read32(priv
, CSR_INT
);
4803 iwl4965_write32(priv
, CSR_INT
, inta
);
4805 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
4806 * Any new interrupts that happen after this, either while we're
4807 * in this tasklet, or later, will show up in next ISR/tasklet. */
4808 inta_fh
= iwl4965_read32(priv
, CSR_FH_INT_STATUS
);
4809 iwl4965_write32(priv
, CSR_FH_INT_STATUS
, inta_fh
);
4811 #ifdef CONFIG_IWLWIFI_DEBUG
4812 if (iwl_debug_level
& IWL_DL_ISR
) {
4813 /* just for debug */
4814 inta_mask
= iwl4965_read32(priv
, CSR_INT_MASK
);
4815 IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4816 inta
, inta_mask
, inta_fh
);
4820 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
4821 * atomic, make sure that inta covers all the interrupts that
4822 * we've discovered, even if FH interrupt came in just after
4823 * reading CSR_INT. */
4824 if (inta_fh
& CSR49_FH_INT_RX_MASK
)
4825 inta
|= CSR_INT_BIT_FH_RX
;
4826 if (inta_fh
& CSR49_FH_INT_TX_MASK
)
4827 inta
|= CSR_INT_BIT_FH_TX
;
4829 /* Now service all interrupt bits discovered above. */
4830 if (inta
& CSR_INT_BIT_HW_ERR
) {
4831 IWL_ERROR("Microcode HW error detected. Restarting.\n");
4833 /* Tell the device to stop sending interrupts */
4834 iwl4965_disable_interrupts(priv
);
4836 iwl4965_irq_handle_error(priv
);
4838 handled
|= CSR_INT_BIT_HW_ERR
;
4840 spin_unlock_irqrestore(&priv
->lock
, flags
);
4845 #ifdef CONFIG_IWLWIFI_DEBUG
4846 if (iwl_debug_level
& (IWL_DL_ISR
)) {
4847 /* NIC fires this, but we don't use it, redundant with WAKEUP */
4848 if (inta
& CSR_INT_BIT_SCD
)
4849 IWL_DEBUG_ISR("Scheduler finished to transmit "
4850 "the frame/frames.\n");
4852 /* Alive notification via Rx interrupt will do the real work */
4853 if (inta
& CSR_INT_BIT_ALIVE
)
4854 IWL_DEBUG_ISR("Alive interrupt\n");
4857 /* Safely ignore these bits for debug checks below */
4858 inta
&= ~(CSR_INT_BIT_SCD
| CSR_INT_BIT_ALIVE
);
4860 /* HW RF KILL switch toggled */
4861 if (inta
& CSR_INT_BIT_RF_KILL
) {
4863 if (!(iwl4965_read32(priv
, CSR_GP_CNTRL
) &
4864 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
))
4867 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
| IWL_DL_ISR
,
4868 "RF_KILL bit toggled to %s.\n",
4869 hw_rf_kill
? "disable radio":"enable radio");
4871 /* Queue restart only if RF_KILL switch was set to "kill"
4872 * when we loaded driver, and is now set to "enable".
4873 * After we're Alive, RF_KILL gets handled by
4874 * iwl4965_rx_card_state_notif() */
4875 if (!hw_rf_kill
&& !test_bit(STATUS_ALIVE
, &priv
->status
)) {
4876 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
4877 queue_work(priv
->workqueue
, &priv
->restart
);
4880 handled
|= CSR_INT_BIT_RF_KILL
;
4883 /* Chip got too hot and stopped itself */
4884 if (inta
& CSR_INT_BIT_CT_KILL
) {
4885 IWL_ERROR("Microcode CT kill error detected.\n");
4886 handled
|= CSR_INT_BIT_CT_KILL
;
4889 /* Error detected by uCode */
4890 if (inta
& CSR_INT_BIT_SW_ERR
) {
4891 IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
4893 iwl4965_irq_handle_error(priv
);
4894 handled
|= CSR_INT_BIT_SW_ERR
;
4897 /* uCode wakes up after power-down sleep */
4898 if (inta
& CSR_INT_BIT_WAKEUP
) {
4899 IWL_DEBUG_ISR("Wakeup interrupt\n");
4900 iwl4965_rx_queue_update_write_ptr(priv
, &priv
->rxq
);
4901 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[0]);
4902 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[1]);
4903 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[2]);
4904 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[3]);
4905 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[4]);
4906 iwl4965_tx_queue_update_write_ptr(priv
, &priv
->txq
[5]);
4908 handled
|= CSR_INT_BIT_WAKEUP
;
4911 /* All uCode command responses, including Tx command responses,
4912 * Rx "responses" (frame-received notification), and other
4913 * notifications from uCode come through here*/
4914 if (inta
& (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
)) {
4915 iwl4965_rx_handle(priv
);
4916 handled
|= (CSR_INT_BIT_FH_RX
| CSR_INT_BIT_SW_RX
);
4919 if (inta
& CSR_INT_BIT_FH_TX
) {
4920 IWL_DEBUG_ISR("Tx interrupt\n");
4921 handled
|= CSR_INT_BIT_FH_TX
;
4924 if (inta
& ~handled
)
4925 IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta
& ~handled
);
4927 if (inta
& ~CSR_INI_SET_MASK
) {
4928 IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
4929 inta
& ~CSR_INI_SET_MASK
);
4930 IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh
);
4933 /* Re-enable all interrupts */
4934 iwl4965_enable_interrupts(priv
);
4936 #ifdef CONFIG_IWLWIFI_DEBUG
4937 if (iwl_debug_level
& (IWL_DL_ISR
)) {
4938 inta
= iwl4965_read32(priv
, CSR_INT
);
4939 inta_mask
= iwl4965_read32(priv
, CSR_INT_MASK
);
4940 inta_fh
= iwl4965_read32(priv
, CSR_FH_INT_STATUS
);
4941 IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
4942 "flags 0x%08lx\n", inta
, inta_mask
, inta_fh
, flags
);
4945 spin_unlock_irqrestore(&priv
->lock
, flags
);
4948 static irqreturn_t
iwl4965_isr(int irq
, void *data
)
4950 struct iwl_priv
*priv
= data
;
4951 u32 inta
, inta_mask
;
4956 spin_lock(&priv
->lock
);
4958 /* Disable (but don't clear!) interrupts here to avoid
4959 * back-to-back ISRs and sporadic interrupts from our NIC.
4960 * If we have something to service, the tasklet will re-enable ints.
4961 * If we *don't* have something, we'll re-enable before leaving here. */
4962 inta_mask
= iwl4965_read32(priv
, CSR_INT_MASK
); /* just for debug */
4963 iwl4965_write32(priv
, CSR_INT_MASK
, 0x00000000);
4965 /* Discover which interrupts are active/pending */
4966 inta
= iwl4965_read32(priv
, CSR_INT
);
4967 inta_fh
= iwl4965_read32(priv
, CSR_FH_INT_STATUS
);
4969 /* Ignore interrupt if there's nothing in NIC to service.
4970 * This may be due to IRQ shared with another device,
4971 * or due to sporadic interrupts thrown from our NIC. */
4972 if (!inta
&& !inta_fh
) {
4973 IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
4977 if ((inta
== 0xFFFFFFFF) || ((inta
& 0xFFFFFFF0) == 0xa5a5a5a0)) {
4978 /* Hardware disappeared. It might have already raised
4980 IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta
);
4984 IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
4985 inta
, inta_mask
, inta_fh
);
4987 inta
&= ~CSR_INT_BIT_SCD
;
4989 /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
4990 if (likely(inta
|| inta_fh
))
4991 tasklet_schedule(&priv
->irq_tasklet
);
4994 spin_unlock(&priv
->lock
);
4998 /* re-enable interrupts here since we don't have anything to service. */
4999 iwl4965_enable_interrupts(priv
);
5000 spin_unlock(&priv
->lock
);
5004 /************************** EEPROM BANDS ****************************
5006 * The iwl4965_eeprom_band definitions below provide the mapping from the
5007 * EEPROM contents to the specific channel number supported for each
5010 * For example, iwl_priv->eeprom.band_3_channels[4] from the band_3
5011 * definition below maps to physical channel 42 in the 5.2GHz spectrum.
5012 * The specific geography and calibration information for that channel
5013 * is contained in the eeprom map itself.
5015 * During init, we copy the eeprom information and channel map
5016 * information into priv->channel_info_24/52 and priv->channel_map_24/52
5018 * channel_map_24/52 provides the index in the channel_info array for a
5019 * given channel. We have to have two separate maps as there is channel
5020 * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
5023 * A value of 0xff stored in the channel_map indicates that the channel
5024 * is not supported by the hardware at all.
5026 * A value of 0xfe in the channel_map indicates that the channel is not
5027 * valid for Tx with the current hardware. This means that
5028 * while the system can tune and receive on a given channel, it may not
5029 * be able to associate or transmit any frames on that
5030 * channel. There is no corresponding channel information for that
5033 *********************************************************************/
5036 static const u8 iwl4965_eeprom_band_1
[14] = {
5037 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
5041 static const u8 iwl4965_eeprom_band_2
[] = { /* 4915-5080MHz */
5042 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
5045 static const u8 iwl4965_eeprom_band_3
[] = { /* 5170-5320MHz */
5046 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
5049 static const u8 iwl4965_eeprom_band_4
[] = { /* 5500-5700MHz */
5050 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
5053 static const u8 iwl4965_eeprom_band_5
[] = { /* 5725-5825MHz */
5054 145, 149, 153, 157, 161, 165
5057 static u8 iwl4965_eeprom_band_6
[] = { /* 2.4 FAT channel */
5061 static u8 iwl4965_eeprom_band_7
[] = { /* 5.2 FAT channel */
5062 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157
5065 static void iwl4965_init_band_reference(const struct iwl_priv
*priv
,
5067 int *eeprom_ch_count
,
5068 const struct iwl4965_eeprom_channel
5070 const u8
**eeprom_ch_index
)
5073 case 1: /* 2.4GHz band */
5074 *eeprom_ch_count
= ARRAY_SIZE(iwl4965_eeprom_band_1
);
5075 *eeprom_ch_info
= priv
->eeprom
.band_1_channels
;
5076 *eeprom_ch_index
= iwl4965_eeprom_band_1
;
5078 case 2: /* 4.9GHz band */
5079 *eeprom_ch_count
= ARRAY_SIZE(iwl4965_eeprom_band_2
);
5080 *eeprom_ch_info
= priv
->eeprom
.band_2_channels
;
5081 *eeprom_ch_index
= iwl4965_eeprom_band_2
;
5083 case 3: /* 5.2GHz band */
5084 *eeprom_ch_count
= ARRAY_SIZE(iwl4965_eeprom_band_3
);
5085 *eeprom_ch_info
= priv
->eeprom
.band_3_channels
;
5086 *eeprom_ch_index
= iwl4965_eeprom_band_3
;
5088 case 4: /* 5.5GHz band */
5089 *eeprom_ch_count
= ARRAY_SIZE(iwl4965_eeprom_band_4
);
5090 *eeprom_ch_info
= priv
->eeprom
.band_4_channels
;
5091 *eeprom_ch_index
= iwl4965_eeprom_band_4
;
5093 case 5: /* 5.7GHz band */
5094 *eeprom_ch_count
= ARRAY_SIZE(iwl4965_eeprom_band_5
);
5095 *eeprom_ch_info
= priv
->eeprom
.band_5_channels
;
5096 *eeprom_ch_index
= iwl4965_eeprom_band_5
;
5098 case 6: /* 2.4GHz FAT channels */
5099 *eeprom_ch_count
= ARRAY_SIZE(iwl4965_eeprom_band_6
);
5100 *eeprom_ch_info
= priv
->eeprom
.band_24_channels
;
5101 *eeprom_ch_index
= iwl4965_eeprom_band_6
;
5103 case 7: /* 5 GHz FAT channels */
5104 *eeprom_ch_count
= ARRAY_SIZE(iwl4965_eeprom_band_7
);
5105 *eeprom_ch_info
= priv
->eeprom
.band_52_channels
;
5106 *eeprom_ch_index
= iwl4965_eeprom_band_7
;
5115 * iwl4965_get_channel_info - Find driver's private channel info
5117 * Based on band and channel number.
5119 const struct iwl4965_channel_info
*iwl4965_get_channel_info(const struct iwl_priv
*priv
,
5120 enum ieee80211_band band
, u16 channel
)
5125 case IEEE80211_BAND_5GHZ
:
5126 for (i
= 14; i
< priv
->channel_count
; i
++) {
5127 if (priv
->channel_info
[i
].channel
== channel
)
5128 return &priv
->channel_info
[i
];
5131 case IEEE80211_BAND_2GHZ
:
5132 if (channel
>= 1 && channel
<= 14)
5133 return &priv
->channel_info
[channel
- 1];
5142 #define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
5146 * iwl4965_init_channel_map - Set up driver's info for all possible channels
5148 static int iwl4965_init_channel_map(struct iwl_priv
*priv
)
5150 int eeprom_ch_count
= 0;
5151 const u8
*eeprom_ch_index
= NULL
;
5152 const struct iwl4965_eeprom_channel
*eeprom_ch_info
= NULL
;
5154 struct iwl4965_channel_info
*ch_info
;
5156 if (priv
->channel_count
) {
5157 IWL_DEBUG_INFO("Channel map already initialized.\n");
5161 if (priv
->eeprom
.version
< 0x2f) {
5162 IWL_WARNING("Unsupported EEPROM version: 0x%04X\n",
5163 priv
->eeprom
.version
);
5167 IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
5169 priv
->channel_count
=
5170 ARRAY_SIZE(iwl4965_eeprom_band_1
) +
5171 ARRAY_SIZE(iwl4965_eeprom_band_2
) +
5172 ARRAY_SIZE(iwl4965_eeprom_band_3
) +
5173 ARRAY_SIZE(iwl4965_eeprom_band_4
) +
5174 ARRAY_SIZE(iwl4965_eeprom_band_5
);
5176 IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv
->channel_count
);
5178 priv
->channel_info
= kzalloc(sizeof(struct iwl4965_channel_info
) *
5179 priv
->channel_count
, GFP_KERNEL
);
5180 if (!priv
->channel_info
) {
5181 IWL_ERROR("Could not allocate channel_info\n");
5182 priv
->channel_count
= 0;
5186 ch_info
= priv
->channel_info
;
5188 /* Loop through the 5 EEPROM bands adding them in order to the
5189 * channel map we maintain (that contains additional information than
5190 * what just in the EEPROM) */
5191 for (band
= 1; band
<= 5; band
++) {
5193 iwl4965_init_band_reference(priv
, band
, &eeprom_ch_count
,
5194 &eeprom_ch_info
, &eeprom_ch_index
);
5196 /* Loop through each band adding each of the channels */
5197 for (ch
= 0; ch
< eeprom_ch_count
; ch
++) {
5198 ch_info
->channel
= eeprom_ch_index
[ch
];
5199 ch_info
->band
= (band
== 1) ? IEEE80211_BAND_2GHZ
:
5200 IEEE80211_BAND_5GHZ
;
5202 /* permanently store EEPROM's channel regulatory flags
5203 * and max power in channel info database. */
5204 ch_info
->eeprom
= eeprom_ch_info
[ch
];
5206 /* Copy the run-time flags so they are there even on
5207 * invalid channels */
5208 ch_info
->flags
= eeprom_ch_info
[ch
].flags
;
5210 if (!(is_channel_valid(ch_info
))) {
5211 IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
5215 is_channel_a_band(ch_info
) ?
5221 /* Initialize regulatory-based run-time data */
5222 ch_info
->max_power_avg
= ch_info
->curr_txpow
=
5223 eeprom_ch_info
[ch
].max_power_avg
;
5224 ch_info
->scan_power
= eeprom_ch_info
[ch
].max_power_avg
;
5225 ch_info
->min_power
= 0;
5227 IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s%s(0x%02x"
5228 " %ddBm): Ad-Hoc %ssupported\n",
5230 is_channel_a_band(ch_info
) ?
5232 CHECK_AND_PRINT(VALID
),
5233 CHECK_AND_PRINT(IBSS
),
5234 CHECK_AND_PRINT(ACTIVE
),
5235 CHECK_AND_PRINT(RADAR
),
5236 CHECK_AND_PRINT(WIDE
),
5237 CHECK_AND_PRINT(NARROW
),
5238 CHECK_AND_PRINT(DFS
),
5239 eeprom_ch_info
[ch
].flags
,
5240 eeprom_ch_info
[ch
].max_power_avg
,
5241 ((eeprom_ch_info
[ch
].
5242 flags
& EEPROM_CHANNEL_IBSS
)
5243 && !(eeprom_ch_info
[ch
].
5244 flags
& EEPROM_CHANNEL_RADAR
))
5247 /* Set the user_txpower_limit to the highest power
5248 * supported by any channel */
5249 if (eeprom_ch_info
[ch
].max_power_avg
>
5250 priv
->user_txpower_limit
)
5251 priv
->user_txpower_limit
=
5252 eeprom_ch_info
[ch
].max_power_avg
;
5258 /* Two additional EEPROM bands for 2.4 and 5 GHz FAT channels */
5259 for (band
= 6; band
<= 7; band
++) {
5260 enum ieee80211_band ieeeband
;
5261 u8 fat_extension_chan
;
5263 iwl4965_init_band_reference(priv
, band
, &eeprom_ch_count
,
5264 &eeprom_ch_info
, &eeprom_ch_index
);
5266 /* EEPROM band 6 is 2.4, band 7 is 5 GHz */
5267 ieeeband
= (band
== 6) ? IEEE80211_BAND_2GHZ
: IEEE80211_BAND_5GHZ
;
5269 /* Loop through each band adding each of the channels */
5270 for (ch
= 0; ch
< eeprom_ch_count
; ch
++) {
5273 ((eeprom_ch_index
[ch
] == 5) ||
5274 (eeprom_ch_index
[ch
] == 6) ||
5275 (eeprom_ch_index
[ch
] == 7)))
5276 fat_extension_chan
= HT_IE_EXT_CHANNEL_MAX
;
5278 fat_extension_chan
= HT_IE_EXT_CHANNEL_ABOVE
;
5280 /* Set up driver's info for lower half */
5281 iwl4965_set_fat_chan_info(priv
, ieeeband
,
5282 eeprom_ch_index
[ch
],
5283 &(eeprom_ch_info
[ch
]),
5284 fat_extension_chan
);
5286 /* Set up driver's info for upper half */
5287 iwl4965_set_fat_chan_info(priv
, ieeeband
,
5288 (eeprom_ch_index
[ch
] + 4),
5289 &(eeprom_ch_info
[ch
]),
5290 HT_IE_EXT_CHANNEL_BELOW
);
5298 * iwl4965_free_channel_map - undo allocations in iwl4965_init_channel_map
5300 static void iwl4965_free_channel_map(struct iwl_priv
*priv
)
5302 kfree(priv
->channel_info
);
5303 priv
->channel_count
= 0;
5306 /* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
5307 * sending probe req. This should be set long enough to hear probe responses
5308 * from more than one AP. */
5309 #define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
5310 #define IWL_ACTIVE_DWELL_TIME_52 (10)
5312 /* For faster active scanning, scan will move to the next channel if fewer than
5313 * PLCP_QUIET_THRESH packets are heard on this channel within
5314 * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
5315 * time if it's a quiet channel (nothing responded to our probe, and there's
5316 * no other traffic).
5317 * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
5318 #define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
5319 #define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
5321 /* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
5322 * Must be set longer than active dwell time.
5323 * For the most reliable scan, set > AP beacon interval (typically 100msec). */
5324 #define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
5325 #define IWL_PASSIVE_DWELL_TIME_52 (10)
5326 #define IWL_PASSIVE_DWELL_BASE (100)
5327 #define IWL_CHANNEL_TUNE_TIME 5
5329 static inline u16
iwl4965_get_active_dwell_time(struct iwl_priv
*priv
,
5330 enum ieee80211_band band
)
5332 if (band
== IEEE80211_BAND_5GHZ
)
5333 return IWL_ACTIVE_DWELL_TIME_52
;
5335 return IWL_ACTIVE_DWELL_TIME_24
;
5338 static u16
iwl4965_get_passive_dwell_time(struct iwl_priv
*priv
,
5339 enum ieee80211_band band
)
5341 u16 active
= iwl4965_get_active_dwell_time(priv
, band
);
5342 u16 passive
= (band
!= IEEE80211_BAND_5GHZ
) ?
5343 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_24
:
5344 IWL_PASSIVE_DWELL_BASE
+ IWL_PASSIVE_DWELL_TIME_52
;
5346 if (iwl4965_is_associated(priv
)) {
5347 /* If we're associated, we clamp the maximum passive
5348 * dwell time to be 98% of the beacon interval (minus
5349 * 2 * channel tune time) */
5350 passive
= priv
->beacon_int
;
5351 if ((passive
> IWL_PASSIVE_DWELL_BASE
) || !passive
)
5352 passive
= IWL_PASSIVE_DWELL_BASE
;
5353 passive
= (passive
* 98) / 100 - IWL_CHANNEL_TUNE_TIME
* 2;
5356 if (passive
<= active
)
5357 passive
= active
+ 1;
5362 static int iwl4965_get_channels_for_scan(struct iwl_priv
*priv
,
5363 enum ieee80211_band band
,
5364 u8 is_active
, u8 direct_mask
,
5365 struct iwl4965_scan_channel
*scan_ch
)
5367 const struct ieee80211_channel
*channels
= NULL
;
5368 const struct ieee80211_supported_band
*sband
;
5369 const struct iwl4965_channel_info
*ch_info
;
5370 u16 passive_dwell
= 0;
5371 u16 active_dwell
= 0;
5374 sband
= iwl4965_get_hw_mode(priv
, band
);
5378 channels
= sband
->channels
;
5380 active_dwell
= iwl4965_get_active_dwell_time(priv
, band
);
5381 passive_dwell
= iwl4965_get_passive_dwell_time(priv
, band
);
5383 for (i
= 0, added
= 0; i
< sband
->n_channels
; i
++) {
5384 if (ieee80211_frequency_to_channel(channels
[i
].center_freq
) ==
5385 le16_to_cpu(priv
->active_rxon
.channel
)) {
5386 if (iwl4965_is_associated(priv
)) {
5388 ("Skipping current channel %d\n",
5389 le16_to_cpu(priv
->active_rxon
.channel
));
5392 } else if (priv
->only_active_channel
)
5395 scan_ch
->channel
= ieee80211_frequency_to_channel(channels
[i
].center_freq
);
5397 ch_info
= iwl4965_get_channel_info(priv
, band
,
5399 if (!is_channel_valid(ch_info
)) {
5400 IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
5405 if (!is_active
|| is_channel_passive(ch_info
) ||
5406 (channels
[i
].flags
& IEEE80211_CHAN_PASSIVE_SCAN
))
5407 scan_ch
->type
= 0; /* passive */
5409 scan_ch
->type
= 1; /* active */
5411 if (scan_ch
->type
& 1)
5412 scan_ch
->type
|= (direct_mask
<< 1);
5414 if (is_channel_narrow(ch_info
))
5415 scan_ch
->type
|= (1 << 7);
5417 scan_ch
->active_dwell
= cpu_to_le16(active_dwell
);
5418 scan_ch
->passive_dwell
= cpu_to_le16(passive_dwell
);
5420 /* Set txpower levels to defaults */
5421 scan_ch
->tpc
.dsp_atten
= 110;
5422 /* scan_pwr_info->tpc.dsp_atten; */
5424 /*scan_pwr_info->tpc.tx_gain; */
5425 if (band
== IEEE80211_BAND_5GHZ
)
5426 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (3 << 3)) | 3;
5428 scan_ch
->tpc
.tx_gain
= ((1 << 5) | (5 << 3));
5429 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
5431 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
5435 IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
5437 (scan_ch
->type
& 1) ? "ACTIVE" : "PASSIVE",
5438 (scan_ch
->type
& 1) ?
5439 active_dwell
: passive_dwell
);
5445 IWL_DEBUG_SCAN("total channels to scan %d \n", added
);
5449 static void iwl4965_init_hw_rates(struct iwl_priv
*priv
,
5450 struct ieee80211_rate
*rates
)
5454 for (i
= 0; i
< IWL_RATE_COUNT
; i
++) {
5455 rates
[i
].bitrate
= iwl4965_rates
[i
].ieee
* 5;
5456 rates
[i
].hw_value
= i
; /* Rate scaling will work on indexes */
5457 rates
[i
].hw_value_short
= i
;
5459 if ((i
> IWL_LAST_OFDM_RATE
) || (i
< IWL_FIRST_OFDM_RATE
)) {
5461 * If CCK != 1M then set short preamble rate flag.
5464 (iwl4965_rates
[i
].plcp
== IWL_RATE_1M_PLCP
) ?
5465 0 : IEEE80211_RATE_SHORT_PREAMBLE
;
5471 * iwl4965_init_geos - Initialize mac80211's geo/channel info based from eeprom
5473 static int iwl4965_init_geos(struct iwl_priv
*priv
)
5475 struct iwl4965_channel_info
*ch
;
5476 struct ieee80211_supported_band
*sband
;
5477 struct ieee80211_channel
*channels
;
5478 struct ieee80211_channel
*geo_ch
;
5479 struct ieee80211_rate
*rates
;
5482 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_bitrates
||
5483 priv
->bands
[IEEE80211_BAND_5GHZ
].n_bitrates
) {
5484 IWL_DEBUG_INFO("Geography modes already initialized.\n");
5485 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5489 channels
= kzalloc(sizeof(struct ieee80211_channel
) *
5490 priv
->channel_count
, GFP_KERNEL
);
5494 rates
= kzalloc((sizeof(struct ieee80211_rate
) * (IWL_RATE_COUNT
+ 1)),
5501 /* 5.2GHz channels start after the 2.4GHz channels */
5502 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
5503 sband
->channels
= &channels
[ARRAY_SIZE(iwl4965_eeprom_band_1
)];
5505 sband
->bitrates
= &rates
[IWL_FIRST_OFDM_RATE
];
5506 sband
->n_bitrates
= IWL_RATE_COUNT
- IWL_FIRST_OFDM_RATE
;
5508 iwl4965_init_ht_hw_capab(&sband
->ht_info
, IEEE80211_BAND_5GHZ
);
5510 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
5511 sband
->channels
= channels
;
5513 sband
->bitrates
= rates
;
5514 sband
->n_bitrates
= IWL_RATE_COUNT
;
5516 iwl4965_init_ht_hw_capab(&sband
->ht_info
, IEEE80211_BAND_2GHZ
);
5518 priv
->ieee_channels
= channels
;
5519 priv
->ieee_rates
= rates
;
5521 iwl4965_init_hw_rates(priv
, rates
);
5523 for (i
= 0; i
< priv
->channel_count
; i
++) {
5524 ch
= &priv
->channel_info
[i
];
5526 /* FIXME: might be removed if scan is OK */
5527 if (!is_channel_valid(ch
))
5530 if (is_channel_a_band(ch
))
5531 sband
= &priv
->bands
[IEEE80211_BAND_5GHZ
];
5533 sband
= &priv
->bands
[IEEE80211_BAND_2GHZ
];
5535 geo_ch
= &sband
->channels
[sband
->n_channels
++];
5537 geo_ch
->center_freq
= ieee80211_channel_to_frequency(ch
->channel
);
5538 geo_ch
->max_power
= ch
->max_power_avg
;
5539 geo_ch
->max_antenna_gain
= 0xff;
5540 geo_ch
->hw_value
= ch
->channel
;
5542 if (is_channel_valid(ch
)) {
5543 if (!(ch
->flags
& EEPROM_CHANNEL_IBSS
))
5544 geo_ch
->flags
|= IEEE80211_CHAN_NO_IBSS
;
5546 if (!(ch
->flags
& EEPROM_CHANNEL_ACTIVE
))
5547 geo_ch
->flags
|= IEEE80211_CHAN_PASSIVE_SCAN
;
5549 if (ch
->flags
& EEPROM_CHANNEL_RADAR
)
5550 geo_ch
->flags
|= IEEE80211_CHAN_RADAR
;
5552 if (ch
->max_power_avg
> priv
->max_channel_txpower_limit
)
5553 priv
->max_channel_txpower_limit
=
5556 geo_ch
->flags
|= IEEE80211_CHAN_DISABLED
;
5559 /* Save flags for reg domain usage */
5560 geo_ch
->orig_flags
= geo_ch
->flags
;
5562 IWL_DEBUG_INFO("Channel %d Freq=%d[%sGHz] %s flag=0%X\n",
5563 ch
->channel
, geo_ch
->center_freq
,
5564 is_channel_a_band(ch
) ? "5.2" : "2.4",
5565 geo_ch
->flags
& IEEE80211_CHAN_DISABLED
?
5566 "restricted" : "valid",
5570 if ((priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
== 0) &&
5571 priv
->cfg
->sku
& IWL_SKU_A
) {
5572 printk(KERN_INFO DRV_NAME
5573 ": Incorrectly detected BG card as ABG. Please send "
5574 "your PCI ID 0x%04X:0x%04X to maintainer.\n",
5575 priv
->pci_dev
->device
, priv
->pci_dev
->subsystem_device
);
5576 priv
->cfg
->sku
&= ~IWL_SKU_A
;
5579 printk(KERN_INFO DRV_NAME
5580 ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
5581 priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
,
5582 priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
);
5584 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &priv
->bands
[IEEE80211_BAND_2GHZ
];
5585 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] = &priv
->bands
[IEEE80211_BAND_5GHZ
];
5587 set_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5593 * iwl4965_free_geos - undo allocations in iwl4965_init_geos
5595 static void iwl4965_free_geos(struct iwl_priv
*priv
)
5597 kfree(priv
->ieee_channels
);
5598 kfree(priv
->ieee_rates
);
5599 clear_bit(STATUS_GEO_CONFIGURED
, &priv
->status
);
5602 /******************************************************************************
5604 * uCode download functions
5606 ******************************************************************************/
5608 static void iwl4965_dealloc_ucode_pci(struct iwl_priv
*priv
)
5610 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
5611 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
5612 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
5613 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
5614 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
5615 iwl_free_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
5619 * iwl4965_verify_inst_full - verify runtime uCode image in card vs. host,
5620 * looking at all data.
5622 static int iwl4965_verify_inst_full(struct iwl_priv
*priv
, __le32
*image
,
5630 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5632 rc
= iwl4965_grab_nic_access(priv
);
5636 iwl4965_write_direct32(priv
, HBUS_TARG_MEM_RADDR
, RTC_INST_LOWER_BOUND
);
5639 for (; len
> 0; len
-= sizeof(u32
), image
++) {
5640 /* read data comes through single port, auto-incr addr */
5641 /* NOTE: Use the debugless read so we don't flood kernel log
5642 * if IWL_DL_IO is set */
5643 val
= _iwl4965_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5644 if (val
!= le32_to_cpu(*image
)) {
5645 IWL_ERROR("uCode INST section is invalid at "
5646 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5647 save_len
- len
, val
, le32_to_cpu(*image
));
5655 iwl4965_release_nic_access(priv
);
5659 ("ucode image in INSTRUCTION memory is good\n");
5666 * iwl4965_verify_inst_sparse - verify runtime uCode image in card vs. host,
5667 * using sample data 100 bytes apart. If these sample points are good,
5668 * it's a pretty good bet that everything between them is good, too.
5670 static int iwl4965_verify_inst_sparse(struct iwl_priv
*priv
, __le32
*image
, u32 len
)
5677 IWL_DEBUG_INFO("ucode inst image size is %u\n", len
);
5679 rc
= iwl4965_grab_nic_access(priv
);
5683 for (i
= 0; i
< len
; i
+= 100, image
+= 100/sizeof(u32
)) {
5684 /* read data comes through single port, auto-incr addr */
5685 /* NOTE: Use the debugless read so we don't flood kernel log
5686 * if IWL_DL_IO is set */
5687 iwl4965_write_direct32(priv
, HBUS_TARG_MEM_RADDR
,
5688 i
+ RTC_INST_LOWER_BOUND
);
5689 val
= _iwl4965_read_direct32(priv
, HBUS_TARG_MEM_RDAT
);
5690 if (val
!= le32_to_cpu(*image
)) {
5691 #if 0 /* Enable this if you want to see details */
5692 IWL_ERROR("uCode INST section is invalid at "
5693 "offset 0x%x, is 0x%x, s/b 0x%x\n",
5703 iwl4965_release_nic_access(priv
);
5710 * iwl4965_verify_ucode - determine which instruction image is in SRAM,
5711 * and verify its contents
5713 static int iwl4965_verify_ucode(struct iwl_priv
*priv
)
5720 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5721 len
= priv
->ucode_boot
.len
;
5722 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5724 IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
5728 /* Try initialize */
5729 image
= (__le32
*)priv
->ucode_init
.v_addr
;
5730 len
= priv
->ucode_init
.len
;
5731 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5733 IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
5737 /* Try runtime/protocol */
5738 image
= (__le32
*)priv
->ucode_code
.v_addr
;
5739 len
= priv
->ucode_code
.len
;
5740 rc
= iwl4965_verify_inst_sparse(priv
, image
, len
);
5742 IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
5746 IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
5748 /* Since nothing seems to match, show first several data entries in
5749 * instruction SRAM, so maybe visual inspection will give a clue.
5750 * Selection of bootstrap image (vs. other images) is arbitrary. */
5751 image
= (__le32
*)priv
->ucode_boot
.v_addr
;
5752 len
= priv
->ucode_boot
.len
;
5753 rc
= iwl4965_verify_inst_full(priv
, image
, len
);
5759 /* check contents of special bootstrap uCode SRAM */
5760 static int iwl4965_verify_bsm(struct iwl_priv
*priv
)
5762 __le32
*image
= priv
->ucode_boot
.v_addr
;
5763 u32 len
= priv
->ucode_boot
.len
;
5767 IWL_DEBUG_INFO("Begin verify bsm\n");
5769 /* verify BSM SRAM contents */
5770 val
= iwl4965_read_prph(priv
, BSM_WR_DWCOUNT_REG
);
5771 for (reg
= BSM_SRAM_LOWER_BOUND
;
5772 reg
< BSM_SRAM_LOWER_BOUND
+ len
;
5773 reg
+= sizeof(u32
), image
++) {
5774 val
= iwl4965_read_prph(priv
, reg
);
5775 if (val
!= le32_to_cpu(*image
)) {
5776 IWL_ERROR("BSM uCode verification failed at "
5777 "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
5778 BSM_SRAM_LOWER_BOUND
,
5779 reg
- BSM_SRAM_LOWER_BOUND
, len
,
5780 val
, le32_to_cpu(*image
));
5785 IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
5791 * iwl4965_load_bsm - Load bootstrap instructions
5795 * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
5796 * in special SRAM that does not power down during RFKILL. When powering back
5797 * up after power-saving sleeps (or during initial uCode load), the BSM loads
5798 * the bootstrap program into the on-board processor, and starts it.
5800 * The bootstrap program loads (via DMA) instructions and data for a new
5801 * program from host DRAM locations indicated by the host driver in the
5802 * BSM_DRAM_* registers. Once the new program is loaded, it starts
5805 * When initializing the NIC, the host driver points the BSM to the
5806 * "initialize" uCode image. This uCode sets up some internal data, then
5807 * notifies host via "initialize alive" that it is complete.
5809 * The host then replaces the BSM_DRAM_* pointer values to point to the
5810 * normal runtime uCode instructions and a backup uCode data cache buffer
5811 * (filled initially with starting data values for the on-board processor),
5812 * then triggers the "initialize" uCode to load and launch the runtime uCode,
5813 * which begins normal operation.
5815 * When doing a power-save shutdown, runtime uCode saves data SRAM into
5816 * the backup data cache in DRAM before SRAM is powered down.
5818 * When powering back up, the BSM loads the bootstrap program. This reloads
5819 * the runtime uCode instructions and the backup data cache into SRAM,
5820 * and re-launches the runtime uCode from where it left off.
5822 static int iwl4965_load_bsm(struct iwl_priv
*priv
)
5824 __le32
*image
= priv
->ucode_boot
.v_addr
;
5825 u32 len
= priv
->ucode_boot
.len
;
5835 IWL_DEBUG_INFO("Begin load bsm\n");
5837 /* make sure bootstrap program is no larger than BSM's SRAM size */
5838 if (len
> IWL_MAX_BSM_SIZE
)
5841 /* Tell bootstrap uCode where to find the "Initialize" uCode
5842 * in host DRAM ... host DRAM physical address bits 35:4 for 4965.
5843 * NOTE: iwl4965_initialize_alive_start() will replace these values,
5844 * after the "initialize" uCode has run, to point to
5845 * runtime/protocol instructions and backup data cache. */
5846 pinst
= priv
->ucode_init
.p_addr
>> 4;
5847 pdata
= priv
->ucode_init_data
.p_addr
>> 4;
5848 inst_len
= priv
->ucode_init
.len
;
5849 data_len
= priv
->ucode_init_data
.len
;
5851 rc
= iwl4965_grab_nic_access(priv
);
5855 iwl4965_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
5856 iwl4965_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
5857 iwl4965_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
, inst_len
);
5858 iwl4965_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
, data_len
);
5860 /* Fill BSM memory with bootstrap instructions */
5861 for (reg_offset
= BSM_SRAM_LOWER_BOUND
;
5862 reg_offset
< BSM_SRAM_LOWER_BOUND
+ len
;
5863 reg_offset
+= sizeof(u32
), image
++)
5864 _iwl4965_write_prph(priv
, reg_offset
,
5865 le32_to_cpu(*image
));
5867 rc
= iwl4965_verify_bsm(priv
);
5869 iwl4965_release_nic_access(priv
);
5873 /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
5874 iwl4965_write_prph(priv
, BSM_WR_MEM_SRC_REG
, 0x0);
5875 iwl4965_write_prph(priv
, BSM_WR_MEM_DST_REG
,
5876 RTC_INST_LOWER_BOUND
);
5877 iwl4965_write_prph(priv
, BSM_WR_DWCOUNT_REG
, len
/ sizeof(u32
));
5879 /* Load bootstrap code into instruction SRAM now,
5880 * to prepare to load "initialize" uCode */
5881 iwl4965_write_prph(priv
, BSM_WR_CTRL_REG
,
5882 BSM_WR_CTRL_REG_BIT_START
);
5884 /* Wait for load of bootstrap uCode to finish */
5885 for (i
= 0; i
< 100; i
++) {
5886 done
= iwl4965_read_prph(priv
, BSM_WR_CTRL_REG
);
5887 if (!(done
& BSM_WR_CTRL_REG_BIT_START
))
5892 IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i
);
5894 IWL_ERROR("BSM write did not complete!\n");
5898 /* Enable future boot loads whenever power management unit triggers it
5899 * (e.g. when powering back up after power-save shutdown) */
5900 iwl4965_write_prph(priv
, BSM_WR_CTRL_REG
,
5901 BSM_WR_CTRL_REG_BIT_START_EN
);
5903 iwl4965_release_nic_access(priv
);
5908 static void iwl4965_nic_start(struct iwl_priv
*priv
)
5910 /* Remove all resets to allow NIC to operate */
5911 iwl4965_write32(priv
, CSR_RESET
, 0);
5916 * iwl4965_read_ucode - Read uCode images from disk file.
5918 * Copy into buffers for card to fetch via bus-mastering
5920 static int iwl4965_read_ucode(struct iwl_priv
*priv
)
5922 struct iwl4965_ucode
*ucode
;
5924 const struct firmware
*ucode_raw
;
5925 const char *name
= priv
->cfg
->fw_name
;
5928 u32 ver
, inst_size
, data_size
, init_size
, init_data_size
, boot_size
;
5930 /* Ask kernel firmware_class module to get the boot firmware off disk.
5931 * request_firmware() is synchronous, file is in memory on return. */
5932 ret
= request_firmware(&ucode_raw
, name
, &priv
->pci_dev
->dev
);
5934 IWL_ERROR("%s firmware file req failed: Reason %d\n",
5939 IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
5940 name
, ucode_raw
->size
);
5942 /* Make sure that we got at least our header! */
5943 if (ucode_raw
->size
< sizeof(*ucode
)) {
5944 IWL_ERROR("File size way too small!\n");
5949 /* Data from ucode file: header followed by uCode images */
5950 ucode
= (void *)ucode_raw
->data
;
5952 ver
= le32_to_cpu(ucode
->ver
);
5953 inst_size
= le32_to_cpu(ucode
->inst_size
);
5954 data_size
= le32_to_cpu(ucode
->data_size
);
5955 init_size
= le32_to_cpu(ucode
->init_size
);
5956 init_data_size
= le32_to_cpu(ucode
->init_data_size
);
5957 boot_size
= le32_to_cpu(ucode
->boot_size
);
5959 IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver
);
5960 IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
5962 IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
5964 IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
5966 IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
5968 IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
5971 /* Verify size of file vs. image size info in file's header */
5972 if (ucode_raw
->size
< sizeof(*ucode
) +
5973 inst_size
+ data_size
+ init_size
+
5974 init_data_size
+ boot_size
) {
5976 IWL_DEBUG_INFO("uCode file size %d too small\n",
5977 (int)ucode_raw
->size
);
5982 /* Verify that uCode images will fit in card's SRAM */
5983 if (inst_size
> IWL_MAX_INST_SIZE
) {
5984 IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
5990 if (data_size
> IWL_MAX_DATA_SIZE
) {
5991 IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
5996 if (init_size
> IWL_MAX_INST_SIZE
) {
5998 ("uCode init instr len %d too large to fit in\n",
6003 if (init_data_size
> IWL_MAX_DATA_SIZE
) {
6005 ("uCode init data len %d too large to fit in\n",
6010 if (boot_size
> IWL_MAX_BSM_SIZE
) {
6012 ("uCode boot instr len %d too large to fit in\n",
6018 /* Allocate ucode buffers for card's bus-master loading ... */
6020 /* Runtime instructions and 2 copies of data:
6021 * 1) unmodified from disk
6022 * 2) backup cache for save/restore during power-downs */
6023 priv
->ucode_code
.len
= inst_size
;
6024 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_code
);
6026 priv
->ucode_data
.len
= data_size
;
6027 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data
);
6029 priv
->ucode_data_backup
.len
= data_size
;
6030 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_data_backup
);
6032 /* Initialization instructions and data */
6033 if (init_size
&& init_data_size
) {
6034 priv
->ucode_init
.len
= init_size
;
6035 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init
);
6037 priv
->ucode_init_data
.len
= init_data_size
;
6038 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_init_data
);
6040 if (!priv
->ucode_init
.v_addr
|| !priv
->ucode_init_data
.v_addr
)
6044 /* Bootstrap (instructions only, no data) */
6046 priv
->ucode_boot
.len
= boot_size
;
6047 iwl_alloc_fw_desc(priv
->pci_dev
, &priv
->ucode_boot
);
6049 if (!priv
->ucode_boot
.v_addr
)
6053 /* Copy images into buffers for card's bus-master reads ... */
6055 /* Runtime instructions (first block of data in file) */
6056 src
= &ucode
->data
[0];
6057 len
= priv
->ucode_code
.len
;
6058 IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len
);
6059 memcpy(priv
->ucode_code
.v_addr
, src
, len
);
6060 IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
6061 priv
->ucode_code
.v_addr
, (u32
)priv
->ucode_code
.p_addr
);
6063 /* Runtime data (2nd block)
6064 * NOTE: Copy into backup buffer will be done in iwl4965_up() */
6065 src
= &ucode
->data
[inst_size
];
6066 len
= priv
->ucode_data
.len
;
6067 IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len
);
6068 memcpy(priv
->ucode_data
.v_addr
, src
, len
);
6069 memcpy(priv
->ucode_data_backup
.v_addr
, src
, len
);
6071 /* Initialization instructions (3rd block) */
6073 src
= &ucode
->data
[inst_size
+ data_size
];
6074 len
= priv
->ucode_init
.len
;
6075 IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
6077 memcpy(priv
->ucode_init
.v_addr
, src
, len
);
6080 /* Initialization data (4th block) */
6081 if (init_data_size
) {
6082 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
];
6083 len
= priv
->ucode_init_data
.len
;
6084 IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
6086 memcpy(priv
->ucode_init_data
.v_addr
, src
, len
);
6089 /* Bootstrap instructions (5th block) */
6090 src
= &ucode
->data
[inst_size
+ data_size
+ init_size
+ init_data_size
];
6091 len
= priv
->ucode_boot
.len
;
6092 IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len
);
6093 memcpy(priv
->ucode_boot
.v_addr
, src
, len
);
6095 /* We have our copies now, allow OS release its copies */
6096 release_firmware(ucode_raw
);
6100 IWL_ERROR("failed to allocate pci memory\n");
6102 iwl4965_dealloc_ucode_pci(priv
);
6105 release_firmware(ucode_raw
);
6113 * iwl4965_set_ucode_ptrs - Set uCode address location
6115 * Tell initialization uCode where to find runtime uCode.
6117 * BSM registers initially contain pointers to initialization uCode.
6118 * We need to replace them to load runtime uCode inst and data,
6119 * and to save runtime data when powering down.
6121 static int iwl4965_set_ucode_ptrs(struct iwl_priv
*priv
)
6126 unsigned long flags
;
6128 /* bits 35:4 for 4965 */
6129 pinst
= priv
->ucode_code
.p_addr
>> 4;
6130 pdata
= priv
->ucode_data_backup
.p_addr
>> 4;
6132 spin_lock_irqsave(&priv
->lock
, flags
);
6133 rc
= iwl4965_grab_nic_access(priv
);
6135 spin_unlock_irqrestore(&priv
->lock
, flags
);
6139 /* Tell bootstrap uCode where to find image to load */
6140 iwl4965_write_prph(priv
, BSM_DRAM_INST_PTR_REG
, pinst
);
6141 iwl4965_write_prph(priv
, BSM_DRAM_DATA_PTR_REG
, pdata
);
6142 iwl4965_write_prph(priv
, BSM_DRAM_DATA_BYTECOUNT_REG
,
6143 priv
->ucode_data
.len
);
6145 /* Inst bytecount must be last to set up, bit 31 signals uCode
6146 * that all new ptr/size info is in place */
6147 iwl4965_write_prph(priv
, BSM_DRAM_INST_BYTECOUNT_REG
,
6148 priv
->ucode_code
.len
| BSM_DRAM_INST_LOAD
);
6150 iwl4965_release_nic_access(priv
);
6152 spin_unlock_irqrestore(&priv
->lock
, flags
);
6154 IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
6160 * iwl4965_init_alive_start - Called after REPLY_ALIVE notification received
6162 * Called after REPLY_ALIVE notification received from "initialize" uCode.
6164 * The 4965 "initialize" ALIVE reply contains calibration data for:
6165 * Voltage, temperature, and MIMO tx gain correction, now stored in priv
6166 * (3945 does not contain this data).
6168 * Tell "initialize" uCode to go ahead and load the runtime uCode.
6170 static void iwl4965_init_alive_start(struct iwl_priv
*priv
)
6172 /* Check alive response for "valid" sign from uCode */
6173 if (priv
->card_alive_init
.is_valid
!= UCODE_VALID_OK
) {
6174 /* We had an error bringing up the hardware, so take it
6175 * all the way back down so we can try again */
6176 IWL_DEBUG_INFO("Initialize Alive failed.\n");
6180 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
6181 * This is a paranoid check, because we would not have gotten the
6182 * "initialize" alive if code weren't properly loaded. */
6183 if (iwl4965_verify_ucode(priv
)) {
6184 /* Runtime instruction load was bad;
6185 * take it all the way back down so we can try again */
6186 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
6190 /* Calculate temperature */
6191 priv
->temperature
= iwl4965_get_temperature(priv
);
6193 /* Send pointers to protocol/runtime uCode image ... init code will
6194 * load and launch runtime uCode, which will send us another "Alive"
6196 IWL_DEBUG_INFO("Initialization Alive received.\n");
6197 if (iwl4965_set_ucode_ptrs(priv
)) {
6198 /* Runtime instruction load won't happen;
6199 * take it all the way back down so we can try again */
6200 IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
6206 queue_work(priv
->workqueue
, &priv
->restart
);
6211 * iwl4965_alive_start - called after REPLY_ALIVE notification received
6212 * from protocol/runtime uCode (initialization uCode's
6213 * Alive gets handled by iwl4965_init_alive_start()).
6215 static void iwl4965_alive_start(struct iwl_priv
*priv
)
6219 IWL_DEBUG_INFO("Runtime Alive received.\n");
6221 if (priv
->card_alive
.is_valid
!= UCODE_VALID_OK
) {
6222 /* We had an error bringing up the hardware, so take it
6223 * all the way back down so we can try again */
6224 IWL_DEBUG_INFO("Alive failed.\n");
6228 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
6229 * This is a paranoid check, because we would not have gotten the
6230 * "runtime" alive if code weren't properly loaded. */
6231 if (iwl4965_verify_ucode(priv
)) {
6232 /* Runtime instruction load was bad;
6233 * take it all the way back down so we can try again */
6234 IWL_DEBUG_INFO("Bad runtime uCode load.\n");
6238 iwl4965_clear_stations_table(priv
);
6240 rc
= iwl4965_alive_notify(priv
);
6242 IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
6247 /* After the ALIVE response, we can send host commands to 4965 uCode */
6248 set_bit(STATUS_ALIVE
, &priv
->status
);
6250 /* Clear out the uCode error bit if it is set */
6251 clear_bit(STATUS_FW_ERROR
, &priv
->status
);
6253 if (iwl4965_is_rfkill(priv
))
6256 ieee80211_start_queues(priv
->hw
);
6258 priv
->active_rate
= priv
->rates_mask
;
6259 priv
->active_rate_basic
= priv
->rates_mask
& IWL_BASIC_RATES_MASK
;
6261 iwl4965_send_power_mode(priv
, IWL_POWER_LEVEL(priv
->power_mode
));
6263 if (iwl4965_is_associated(priv
)) {
6264 struct iwl4965_rxon_cmd
*active_rxon
=
6265 (struct iwl4965_rxon_cmd
*)(&priv
->active_rxon
);
6267 memcpy(&priv
->staging_rxon
, &priv
->active_rxon
,
6268 sizeof(priv
->staging_rxon
));
6269 active_rxon
->filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6271 /* Initialize our rx_config data */
6272 iwl4965_connection_init_rx_config(priv
);
6273 memcpy(priv
->staging_rxon
.node_addr
, priv
->mac_addr
, ETH_ALEN
);
6276 /* Configure Bluetooth device coexistence support */
6277 iwl4965_send_bt_config(priv
);
6279 /* Configure the adapter for unassociated operation */
6280 iwl4965_commit_rxon(priv
);
6282 /* At this point, the NIC is initialized and operational */
6283 priv
->notif_missed_beacons
= 0;
6284 set_bit(STATUS_READY
, &priv
->status
);
6286 iwl4965_rf_kill_ct_config(priv
);
6288 IWL_DEBUG_INFO("ALIVE processing complete.\n");
6289 wake_up_interruptible(&priv
->wait_command_queue
);
6291 if (priv
->error_recovering
)
6292 iwl4965_error_recovery(priv
);
6297 queue_work(priv
->workqueue
, &priv
->restart
);
6300 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
);
6302 static void __iwl4965_down(struct iwl_priv
*priv
)
6304 unsigned long flags
;
6305 int exit_pending
= test_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6306 struct ieee80211_conf
*conf
= NULL
;
6308 IWL_DEBUG_INFO(DRV_NAME
" is going down\n");
6310 conf
= ieee80211_get_hw_conf(priv
->hw
);
6313 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6315 iwl4965_clear_stations_table(priv
);
6317 /* Unblock any waiting calls */
6318 wake_up_interruptible_all(&priv
->wait_command_queue
);
6320 /* Wipe out the EXIT_PENDING status bit if we are not actually
6321 * exiting the module */
6323 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6325 /* stop and reset the on-board processor */
6326 iwl4965_write32(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_NEVO_RESET
);
6328 /* tell the device to stop sending interrupts */
6329 iwl4965_disable_interrupts(priv
);
6331 if (priv
->mac80211_registered
)
6332 ieee80211_stop_queues(priv
->hw
);
6334 /* If we have not previously called iwl4965_init() then
6335 * clear all bits but the RF Kill and SUSPEND bits and return */
6336 if (!iwl4965_is_init(priv
)) {
6337 priv
->status
= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
6339 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
6341 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
6342 STATUS_GEO_CONFIGURED
|
6343 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
6348 /* ...otherwise clear out all the status bits but the RF Kill and
6349 * SUSPEND bits and continue taking the NIC down. */
6350 priv
->status
&= test_bit(STATUS_RF_KILL_HW
, &priv
->status
) <<
6352 test_bit(STATUS_RF_KILL_SW
, &priv
->status
) <<
6354 test_bit(STATUS_GEO_CONFIGURED
, &priv
->status
) <<
6355 STATUS_GEO_CONFIGURED
|
6356 test_bit(STATUS_IN_SUSPEND
, &priv
->status
) <<
6358 test_bit(STATUS_FW_ERROR
, &priv
->status
) <<
6361 spin_lock_irqsave(&priv
->lock
, flags
);
6362 iwl4965_clear_bit(priv
, CSR_GP_CNTRL
,
6363 CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
);
6364 spin_unlock_irqrestore(&priv
->lock
, flags
);
6366 iwl4965_hw_txq_ctx_stop(priv
);
6367 iwl4965_hw_rxq_stop(priv
);
6369 spin_lock_irqsave(&priv
->lock
, flags
);
6370 if (!iwl4965_grab_nic_access(priv
)) {
6371 iwl4965_write_prph(priv
, APMG_CLK_DIS_REG
,
6372 APMG_CLK_VAL_DMA_CLK_RQT
);
6373 iwl4965_release_nic_access(priv
);
6375 spin_unlock_irqrestore(&priv
->lock
, flags
);
6379 iwl4965_hw_nic_stop_master(priv
);
6380 iwl4965_set_bit(priv
, CSR_RESET
, CSR_RESET_REG_FLAG_SW_RESET
);
6381 iwl4965_hw_nic_reset(priv
);
6384 memset(&priv
->card_alive
, 0, sizeof(struct iwl4965_alive_resp
));
6386 if (priv
->ibss_beacon
)
6387 dev_kfree_skb(priv
->ibss_beacon
);
6388 priv
->ibss_beacon
= NULL
;
6390 /* clear out any free frames */
6391 iwl4965_clear_free_frames(priv
);
6394 static void iwl4965_down(struct iwl_priv
*priv
)
6396 mutex_lock(&priv
->mutex
);
6397 __iwl4965_down(priv
);
6398 mutex_unlock(&priv
->mutex
);
6400 iwl4965_cancel_deferred_work(priv
);
6403 #define MAX_HW_RESTARTS 5
6405 static int __iwl4965_up(struct iwl_priv
*priv
)
6409 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
6410 IWL_WARNING("Exit pending; will not bring the NIC up\n");
6414 if (test_bit(STATUS_RF_KILL_SW
, &priv
->status
)) {
6415 IWL_WARNING("Radio disabled by SW RF kill (module "
6420 if (!priv
->ucode_data_backup
.v_addr
|| !priv
->ucode_data
.v_addr
) {
6421 IWL_ERROR("ucode not available for device bringup\n");
6425 /* If platform's RF_KILL switch is NOT set to KILL */
6426 if (iwl4965_read32(priv
, CSR_GP_CNTRL
) &
6427 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW
)
6428 clear_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6430 set_bit(STATUS_RF_KILL_HW
, &priv
->status
);
6431 if (!test_bit(STATUS_IN_SUSPEND
, &priv
->status
)) {
6432 IWL_WARNING("Radio disabled by HW RF Kill switch\n");
6437 iwl4965_write32(priv
, CSR_INT
, 0xFFFFFFFF);
6439 rc
= iwl4965_hw_nic_init(priv
);
6441 IWL_ERROR("Unable to int nic\n");
6445 /* make sure rfkill handshake bits are cleared */
6446 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6447 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
,
6448 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED
);
6450 /* clear (again), then enable host interrupts */
6451 iwl4965_write32(priv
, CSR_INT
, 0xFFFFFFFF);
6452 iwl4965_enable_interrupts(priv
);
6454 /* really make sure rfkill handshake bits are cleared */
6455 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6456 iwl4965_write32(priv
, CSR_UCODE_DRV_GP1_CLR
, CSR_UCODE_SW_BIT_RFKILL
);
6458 /* Copy original ucode data image from disk into backup cache.
6459 * This will be used to initialize the on-board processor's
6460 * data SRAM for a clean start when the runtime program first loads. */
6461 memcpy(priv
->ucode_data_backup
.v_addr
, priv
->ucode_data
.v_addr
,
6462 priv
->ucode_data
.len
);
6464 /* We return success when we resume from suspend and rf_kill is on. */
6465 if (test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
6468 for (i
= 0; i
< MAX_HW_RESTARTS
; i
++) {
6470 iwl4965_clear_stations_table(priv
);
6472 /* load bootstrap state machine,
6473 * load bootstrap program into processor's memory,
6474 * prepare to load the "initialize" uCode */
6475 rc
= iwl4965_load_bsm(priv
);
6478 IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc
);
6482 /* start card; "initialize" will load runtime ucode */
6483 iwl4965_nic_start(priv
);
6485 IWL_DEBUG_INFO(DRV_NAME
" is coming up\n");
6490 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
6491 __iwl4965_down(priv
);
6493 /* tried to restart and config the device for as long as our
6494 * patience could withstand */
6495 IWL_ERROR("Unable to initialize device after %d attempts.\n", i
);
6500 /*****************************************************************************
6502 * Workqueue callbacks
6504 *****************************************************************************/
6506 static void iwl4965_bg_init_alive_start(struct work_struct
*data
)
6508 struct iwl_priv
*priv
=
6509 container_of(data
, struct iwl_priv
, init_alive_start
.work
);
6511 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6514 mutex_lock(&priv
->mutex
);
6515 iwl4965_init_alive_start(priv
);
6516 mutex_unlock(&priv
->mutex
);
6519 static void iwl4965_bg_alive_start(struct work_struct
*data
)
6521 struct iwl_priv
*priv
=
6522 container_of(data
, struct iwl_priv
, alive_start
.work
);
6524 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6527 mutex_lock(&priv
->mutex
);
6528 iwl4965_alive_start(priv
);
6529 mutex_unlock(&priv
->mutex
);
6532 static void iwl4965_bg_rf_kill(struct work_struct
*work
)
6534 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, rf_kill
);
6536 wake_up_interruptible(&priv
->wait_command_queue
);
6538 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6541 mutex_lock(&priv
->mutex
);
6543 if (!iwl4965_is_rfkill(priv
)) {
6544 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_RF_KILL
,
6545 "HW and/or SW RF Kill no longer active, restarting "
6547 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6548 queue_work(priv
->workqueue
, &priv
->restart
);
6551 if (!test_bit(STATUS_RF_KILL_HW
, &priv
->status
))
6552 IWL_DEBUG_RF_KILL("Can not turn radio back on - "
6553 "disabled by SW switch\n");
6555 IWL_WARNING("Radio Frequency Kill Switch is On:\n"
6556 "Kill switch must be turned off for "
6557 "wireless networking to work.\n");
6559 mutex_unlock(&priv
->mutex
);
6562 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
6564 static void iwl4965_bg_scan_check(struct work_struct
*data
)
6566 struct iwl_priv
*priv
=
6567 container_of(data
, struct iwl_priv
, scan_check
.work
);
6569 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6572 mutex_lock(&priv
->mutex
);
6573 if (test_bit(STATUS_SCANNING
, &priv
->status
) ||
6574 test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6575 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
,
6576 "Scan completion watchdog resetting adapter (%dms)\n",
6577 jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG
));
6579 if (!test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6580 iwl4965_send_scan_abort(priv
);
6582 mutex_unlock(&priv
->mutex
);
6585 static void iwl4965_bg_request_scan(struct work_struct
*data
)
6587 struct iwl_priv
*priv
=
6588 container_of(data
, struct iwl_priv
, request_scan
);
6589 struct iwl4965_host_cmd cmd
= {
6590 .id
= REPLY_SCAN_CMD
,
6591 .len
= sizeof(struct iwl4965_scan_cmd
),
6592 .meta
.flags
= CMD_SIZE_HUGE
,
6595 struct iwl4965_scan_cmd
*scan
;
6596 struct ieee80211_conf
*conf
= NULL
;
6598 enum ieee80211_band band
;
6601 conf
= ieee80211_get_hw_conf(priv
->hw
);
6603 mutex_lock(&priv
->mutex
);
6605 if (!iwl4965_is_ready(priv
)) {
6606 IWL_WARNING("request scan called when driver not ready.\n");
6610 /* Make sure the scan wasn't cancelled before this queued work
6611 * was given the chance to run... */
6612 if (!test_bit(STATUS_SCANNING
, &priv
->status
))
6615 /* This should never be called or scheduled if there is currently
6616 * a scan active in the hardware. */
6617 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
6618 IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
6619 "Ignoring second request.\n");
6624 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
6625 IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
6629 if (test_bit(STATUS_SCAN_ABORTING
, &priv
->status
)) {
6630 IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
6634 if (iwl4965_is_rfkill(priv
)) {
6635 IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
6639 if (!test_bit(STATUS_READY
, &priv
->status
)) {
6640 IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
6644 if (!priv
->scan_bands
) {
6645 IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
6650 priv
->scan
= kmalloc(sizeof(struct iwl4965_scan_cmd
) +
6651 IWL_MAX_SCAN_SIZE
, GFP_KERNEL
);
6658 memset(scan
, 0, sizeof(struct iwl4965_scan_cmd
) + IWL_MAX_SCAN_SIZE
);
6660 scan
->quiet_plcp_th
= IWL_PLCP_QUIET_THRESH
;
6661 scan
->quiet_time
= IWL_ACTIVE_QUIET_TIME
;
6663 if (iwl4965_is_associated(priv
)) {
6666 u32 suspend_time
= 100;
6667 u32 scan_suspend_time
= 100;
6668 unsigned long flags
;
6670 IWL_DEBUG_INFO("Scanning while associated...\n");
6672 spin_lock_irqsave(&priv
->lock
, flags
);
6673 interval
= priv
->beacon_int
;
6674 spin_unlock_irqrestore(&priv
->lock
, flags
);
6676 scan
->suspend_time
= 0;
6677 scan
->max_out_time
= cpu_to_le32(200 * 1024);
6679 interval
= suspend_time
;
6681 extra
= (suspend_time
/ interval
) << 22;
6682 scan_suspend_time
= (extra
|
6683 ((suspend_time
% interval
) * 1024));
6684 scan
->suspend_time
= cpu_to_le32(scan_suspend_time
);
6685 IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
6686 scan_suspend_time
, interval
);
6689 /* We should add the ability for user to lock to PASSIVE ONLY */
6690 if (priv
->one_direct_scan
) {
6692 ("Kicking off one direct scan for '%s'\n",
6693 iwl4965_escape_essid(priv
->direct_ssid
,
6694 priv
->direct_ssid_len
));
6695 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6696 scan
->direct_scan
[0].len
= priv
->direct_ssid_len
;
6697 memcpy(scan
->direct_scan
[0].ssid
,
6698 priv
->direct_ssid
, priv
->direct_ssid_len
);
6700 } else if (!iwl4965_is_associated(priv
) && priv
->essid_len
) {
6701 scan
->direct_scan
[0].id
= WLAN_EID_SSID
;
6702 scan
->direct_scan
[0].len
= priv
->essid_len
;
6703 memcpy(scan
->direct_scan
[0].ssid
, priv
->essid
, priv
->essid_len
);
6708 scan
->tx_cmd
.tx_flags
= TX_CMD_FLG_SEQ_CTL_MSK
;
6709 scan
->tx_cmd
.sta_id
= priv
->hw_setting
.bcast_sta_id
;
6710 scan
->tx_cmd
.stop_time
.life_time
= TX_CMD_LIFE_TIME_INFINITE
;
6713 switch (priv
->scan_bands
) {
6715 scan
->flags
= RXON_FLG_BAND_24G_MSK
| RXON_FLG_AUTO_DETECT_MSK
;
6716 scan
->tx_cmd
.rate_n_flags
=
6717 iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP
,
6718 RATE_MCS_ANT_B_MSK
|RATE_MCS_CCK_MSK
);
6720 scan
->good_CRC_th
= 0;
6721 band
= IEEE80211_BAND_2GHZ
;
6725 scan
->tx_cmd
.rate_n_flags
=
6726 iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP
,
6727 RATE_MCS_ANT_B_MSK
);
6728 scan
->good_CRC_th
= IWL_GOOD_CRC_TH
;
6729 band
= IEEE80211_BAND_5GHZ
;
6733 IWL_WARNING("Invalid scan band count\n");
6737 /* We don't build a direct scan probe request; the uCode will do
6738 * that based on the direct_mask added to each channel entry */
6739 cmd_len
= iwl4965_fill_probe_req(priv
, band
,
6740 (struct ieee80211_mgmt
*)scan
->data
,
6741 IWL_MAX_SCAN_SIZE
- sizeof(*scan
), 0);
6743 scan
->tx_cmd
.len
= cpu_to_le16(cmd_len
);
6744 /* select Rx chains */
6746 /* Force use of chains B and C (0x6) for scan Rx.
6747 * Avoid A (0x1) because of its off-channel reception on A-band.
6748 * MIMO is not used here, but value is required to make uCode happy. */
6749 scan
->rx_chain
= RXON_RX_CHAIN_DRIVER_FORCE_MSK
|
6750 cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS
) |
6751 (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS
) |
6752 (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS
));
6754 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
)
6755 scan
->filter_flags
= RXON_FILTER_PROMISC_MSK
;
6759 ("Initiating direct scan for %s.\n",
6760 iwl4965_escape_essid(priv
->essid
, priv
->essid_len
));
6761 scan
->channel_count
=
6762 iwl4965_get_channels_for_scan(
6763 priv
, band
, 1, /* active */
6765 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6767 IWL_DEBUG_SCAN("Initiating indirect scan.\n");
6768 scan
->channel_count
=
6769 iwl4965_get_channels_for_scan(
6770 priv
, band
, 0, /* passive */
6772 (void *)&scan
->data
[le16_to_cpu(scan
->tx_cmd
.len
)]);
6775 cmd
.len
+= le16_to_cpu(scan
->tx_cmd
.len
) +
6776 scan
->channel_count
* sizeof(struct iwl4965_scan_channel
);
6778 scan
->len
= cpu_to_le16(cmd
.len
);
6780 set_bit(STATUS_SCAN_HW
, &priv
->status
);
6781 rc
= iwl4965_send_cmd_sync(priv
, &cmd
);
6785 queue_delayed_work(priv
->workqueue
, &priv
->scan_check
,
6786 IWL_SCAN_CHECK_WATCHDOG
);
6788 mutex_unlock(&priv
->mutex
);
6792 /* inform mac80211 scan aborted */
6793 queue_work(priv
->workqueue
, &priv
->scan_completed
);
6794 mutex_unlock(&priv
->mutex
);
6797 static void iwl4965_bg_up(struct work_struct
*data
)
6799 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, up
);
6801 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6804 mutex_lock(&priv
->mutex
);
6806 mutex_unlock(&priv
->mutex
);
6809 static void iwl4965_bg_restart(struct work_struct
*data
)
6811 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
, restart
);
6813 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6817 queue_work(priv
->workqueue
, &priv
->up
);
6820 static void iwl4965_bg_rx_replenish(struct work_struct
*data
)
6822 struct iwl_priv
*priv
=
6823 container_of(data
, struct iwl_priv
, rx_replenish
);
6825 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6828 mutex_lock(&priv
->mutex
);
6829 iwl4965_rx_replenish(priv
);
6830 mutex_unlock(&priv
->mutex
);
6833 #define IWL_DELAY_NEXT_SCAN (HZ*2)
6835 static void iwl4965_bg_post_associate(struct work_struct
*data
)
6837 struct iwl_priv
*priv
= container_of(data
, struct iwl_priv
,
6838 post_associate
.work
);
6841 struct ieee80211_conf
*conf
= NULL
;
6842 DECLARE_MAC_BUF(mac
);
6844 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
6845 IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__
);
6849 IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
6851 print_mac(mac
, priv
->active_rxon
.bssid_addr
));
6854 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6857 mutex_lock(&priv
->mutex
);
6859 if (!priv
->vif
|| !priv
->is_open
) {
6860 mutex_unlock(&priv
->mutex
);
6863 iwl4965_scan_cancel_timeout(priv
, 200);
6865 conf
= ieee80211_get_hw_conf(priv
->hw
);
6867 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
6868 iwl4965_commit_rxon(priv
);
6870 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
6871 iwl4965_setup_rxon_timing(priv
);
6872 rc
= iwl4965_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
6873 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
6875 IWL_WARNING("REPLY_RXON_TIMING failed - "
6876 "Attempting to continue.\n");
6878 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
6880 #ifdef CONFIG_IWL4965_HT
6881 if (priv
->current_ht_config
.is_ht
)
6882 iwl4965_set_rxon_ht(priv
, &priv
->current_ht_config
);
6883 #endif /* CONFIG_IWL4965_HT*/
6884 iwl4965_set_rxon_chain(priv
);
6885 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
6887 IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
6888 priv
->assoc_id
, priv
->beacon_int
);
6890 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
6891 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
6893 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
6895 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
6896 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
)
6897 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_SLOT_MSK
;
6899 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6901 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6902 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_SLOT_MSK
;
6906 iwl4965_commit_rxon(priv
);
6908 switch (priv
->iw_mode
) {
6909 case IEEE80211_IF_TYPE_STA
:
6910 iwl4965_rate_scale_init(priv
->hw
, IWL_AP_ID
);
6913 case IEEE80211_IF_TYPE_IBSS
:
6915 /* clear out the station table */
6916 iwl4965_clear_stations_table(priv
);
6918 iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0);
6919 iwl4965_rxon_add_station(priv
, priv
->bssid
, 0);
6920 iwl4965_rate_scale_init(priv
->hw
, IWL_STA_ID
);
6921 iwl4965_send_beacon_cmd(priv
);
6926 IWL_ERROR("%s Should not be called in %d mode\n",
6927 __FUNCTION__
, priv
->iw_mode
);
6931 iwl4965_sequence_reset(priv
);
6933 #ifdef CONFIG_IWL4965_SENSITIVITY
6934 /* Enable Rx differential gain and sensitivity calibrations */
6935 iwl4965_chain_noise_reset(priv
);
6936 priv
->start_calib
= 1;
6937 #endif /* CONFIG_IWL4965_SENSITIVITY */
6939 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
6940 priv
->assoc_station_added
= 1;
6942 iwl4965_activate_qos(priv
, 0);
6944 /* we have just associated, don't start scan too early */
6945 priv
->next_scan_jiffies
= jiffies
+ IWL_DELAY_NEXT_SCAN
;
6946 mutex_unlock(&priv
->mutex
);
6949 static void iwl4965_bg_abort_scan(struct work_struct
*work
)
6951 struct iwl_priv
*priv
= container_of(work
, struct iwl_priv
, abort_scan
);
6953 if (!iwl4965_is_ready(priv
))
6956 mutex_lock(&priv
->mutex
);
6958 set_bit(STATUS_SCAN_ABORTING
, &priv
->status
);
6959 iwl4965_send_scan_abort(priv
);
6961 mutex_unlock(&priv
->mutex
);
6964 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
);
6966 static void iwl4965_bg_scan_completed(struct work_struct
*work
)
6968 struct iwl_priv
*priv
=
6969 container_of(work
, struct iwl_priv
, scan_completed
);
6971 IWL_DEBUG(IWL_DL_INFO
| IWL_DL_SCAN
, "SCAN complete scan\n");
6973 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
6976 if (test_bit(STATUS_CONF_PENDING
, &priv
->status
))
6977 iwl4965_mac_config(priv
->hw
, ieee80211_get_hw_conf(priv
->hw
));
6979 ieee80211_scan_completed(priv
->hw
);
6981 /* Since setting the TXPOWER may have been deferred while
6982 * performing the scan, fire one off */
6983 mutex_lock(&priv
->mutex
);
6984 iwl4965_hw_reg_send_txpower(priv
);
6985 mutex_unlock(&priv
->mutex
);
6988 /*****************************************************************************
6990 * mac80211 entry point functions
6992 *****************************************************************************/
6994 #define UCODE_READY_TIMEOUT (2 * HZ)
6996 static int iwl4965_mac_start(struct ieee80211_hw
*hw
)
6998 struct iwl_priv
*priv
= hw
->priv
;
7001 IWL_DEBUG_MAC80211("enter\n");
7003 if (pci_enable_device(priv
->pci_dev
)) {
7004 IWL_ERROR("Fail to pci_enable_device\n");
7007 pci_restore_state(priv
->pci_dev
);
7008 pci_enable_msi(priv
->pci_dev
);
7010 ret
= request_irq(priv
->pci_dev
->irq
, iwl4965_isr
, IRQF_SHARED
,
7013 IWL_ERROR("Error allocating IRQ %d\n", priv
->pci_dev
->irq
);
7014 goto out_disable_msi
;
7017 /* we should be verifying the device is ready to be opened */
7018 mutex_lock(&priv
->mutex
);
7020 memset(&priv
->staging_rxon
, 0, sizeof(struct iwl4965_rxon_cmd
));
7021 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
7022 * ucode filename and max sizes are card-specific. */
7024 if (!priv
->ucode_code
.len
) {
7025 ret
= iwl4965_read_ucode(priv
);
7027 IWL_ERROR("Could not read microcode: %d\n", ret
);
7028 mutex_unlock(&priv
->mutex
);
7029 goto out_release_irq
;
7033 ret
= __iwl4965_up(priv
);
7035 mutex_unlock(&priv
->mutex
);
7038 goto out_release_irq
;
7040 IWL_DEBUG_INFO("Start UP work done.\n");
7042 if (test_bit(STATUS_IN_SUSPEND
, &priv
->status
))
7045 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
7046 * mac80211 will not be run successfully. */
7047 ret
= wait_event_interruptible_timeout(priv
->wait_command_queue
,
7048 test_bit(STATUS_READY
, &priv
->status
),
7049 UCODE_READY_TIMEOUT
);
7051 if (!test_bit(STATUS_READY
, &priv
->status
)) {
7052 IWL_ERROR("Wait for START_ALIVE timeout after %dms.\n",
7053 jiffies_to_msecs(UCODE_READY_TIMEOUT
));
7055 goto out_release_irq
;
7060 IWL_DEBUG_MAC80211("leave\n");
7064 free_irq(priv
->pci_dev
->irq
, priv
);
7066 pci_disable_msi(priv
->pci_dev
);
7067 pci_disable_device(priv
->pci_dev
);
7069 IWL_DEBUG_MAC80211("leave - failed\n");
7073 static void iwl4965_mac_stop(struct ieee80211_hw
*hw
)
7075 struct iwl_priv
*priv
= hw
->priv
;
7077 IWL_DEBUG_MAC80211("enter\n");
7079 if (!priv
->is_open
) {
7080 IWL_DEBUG_MAC80211("leave - skip\n");
7086 if (iwl4965_is_ready_rf(priv
)) {
7087 /* stop mac, cancel any scan request and clear
7088 * RXON_FILTER_ASSOC_MSK BIT
7090 mutex_lock(&priv
->mutex
);
7091 iwl4965_scan_cancel_timeout(priv
, 100);
7092 cancel_delayed_work(&priv
->post_associate
);
7093 mutex_unlock(&priv
->mutex
);
7098 flush_workqueue(priv
->workqueue
);
7099 free_irq(priv
->pci_dev
->irq
, priv
);
7100 pci_disable_msi(priv
->pci_dev
);
7101 pci_save_state(priv
->pci_dev
);
7102 pci_disable_device(priv
->pci_dev
);
7104 IWL_DEBUG_MAC80211("leave\n");
7107 static int iwl4965_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
7108 struct ieee80211_tx_control
*ctl
)
7110 struct iwl_priv
*priv
= hw
->priv
;
7112 IWL_DEBUG_MAC80211("enter\n");
7114 if (priv
->iw_mode
== IEEE80211_IF_TYPE_MNTR
) {
7115 IWL_DEBUG_MAC80211("leave - monitor\n");
7119 IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
7120 ctl
->tx_rate
->bitrate
);
7122 if (iwl4965_tx_skb(priv
, skb
, ctl
))
7123 dev_kfree_skb_any(skb
);
7125 IWL_DEBUG_MAC80211("leave\n");
7129 static int iwl4965_mac_add_interface(struct ieee80211_hw
*hw
,
7130 struct ieee80211_if_init_conf
*conf
)
7132 struct iwl_priv
*priv
= hw
->priv
;
7133 unsigned long flags
;
7134 DECLARE_MAC_BUF(mac
);
7136 IWL_DEBUG_MAC80211("enter: type %d\n", conf
->type
);
7139 IWL_DEBUG_MAC80211("leave - vif != NULL\n");
7143 spin_lock_irqsave(&priv
->lock
, flags
);
7144 priv
->vif
= conf
->vif
;
7146 spin_unlock_irqrestore(&priv
->lock
, flags
);
7148 mutex_lock(&priv
->mutex
);
7150 if (conf
->mac_addr
) {
7151 IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac
, conf
->mac_addr
));
7152 memcpy(priv
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
7155 if (iwl4965_is_ready(priv
))
7156 iwl4965_set_mode(priv
, conf
->type
);
7158 mutex_unlock(&priv
->mutex
);
7160 IWL_DEBUG_MAC80211("leave\n");
7165 * iwl4965_mac_config - mac80211 config callback
7167 * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
7168 * be set inappropriately and the driver currently sets the hardware up to
7169 * use it whenever needed.
7171 static int iwl4965_mac_config(struct ieee80211_hw
*hw
, struct ieee80211_conf
*conf
)
7173 struct iwl_priv
*priv
= hw
->priv
;
7174 const struct iwl4965_channel_info
*ch_info
;
7175 unsigned long flags
;
7178 mutex_lock(&priv
->mutex
);
7179 IWL_DEBUG_MAC80211("enter to channel %d\n", conf
->channel
->hw_value
);
7181 priv
->add_radiotap
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
7183 if (!iwl4965_is_ready(priv
)) {
7184 IWL_DEBUG_MAC80211("leave - not ready\n");
7189 if (unlikely(!iwl4965_param_disable_hw_scan
&&
7190 test_bit(STATUS_SCANNING
, &priv
->status
))) {
7191 IWL_DEBUG_MAC80211("leave - scanning\n");
7192 set_bit(STATUS_CONF_PENDING
, &priv
->status
);
7193 mutex_unlock(&priv
->mutex
);
7197 spin_lock_irqsave(&priv
->lock
, flags
);
7199 ch_info
= iwl4965_get_channel_info(priv
, conf
->channel
->band
,
7200 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
7201 if (!is_channel_valid(ch_info
)) {
7202 IWL_DEBUG_MAC80211("leave - invalid channel\n");
7203 spin_unlock_irqrestore(&priv
->lock
, flags
);
7208 #ifdef CONFIG_IWL4965_HT
7209 /* if we are switching from ht to 2.4 clear flags
7210 * from any ht related info since 2.4 does not
7212 if ((le16_to_cpu(priv
->staging_rxon
.channel
) != conf
->channel
->hw_value
)
7213 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
7214 && !(conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
)
7217 priv
->staging_rxon
.flags
= 0;
7218 #endif /* CONFIG_IWL4965_HT */
7220 iwl4965_set_rxon_channel(priv
, conf
->channel
->band
,
7221 ieee80211_frequency_to_channel(conf
->channel
->center_freq
));
7223 iwl4965_set_flags_for_phymode(priv
, conf
->channel
->band
);
7225 /* The list of supported rates and rate mask can be different
7226 * for each band; since the band may have changed, reset
7227 * the rate mask to what mac80211 lists */
7228 iwl4965_set_rate(priv
);
7230 spin_unlock_irqrestore(&priv
->lock
, flags
);
7232 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
7233 if (conf
->flags
& IEEE80211_CONF_CHANNEL_SWITCH
) {
7234 iwl4965_hw_channel_switch(priv
, conf
->channel
);
7239 iwl4965_radio_kill_sw(priv
, !conf
->radio_enabled
);
7241 if (!conf
->radio_enabled
) {
7242 IWL_DEBUG_MAC80211("leave - radio disabled\n");
7246 if (iwl4965_is_rfkill(priv
)) {
7247 IWL_DEBUG_MAC80211("leave - RF kill\n");
7252 iwl4965_set_rate(priv
);
7254 if (memcmp(&priv
->active_rxon
,
7255 &priv
->staging_rxon
, sizeof(priv
->staging_rxon
)))
7256 iwl4965_commit_rxon(priv
);
7258 IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
7260 IWL_DEBUG_MAC80211("leave\n");
7263 clear_bit(STATUS_CONF_PENDING
, &priv
->status
);
7264 mutex_unlock(&priv
->mutex
);
7268 static void iwl4965_config_ap(struct iwl_priv
*priv
)
7272 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
7275 /* The following should be done only at AP bring up */
7276 if ((priv
->active_rxon
.filter_flags
& RXON_FILTER_ASSOC_MSK
) == 0) {
7278 /* RXON - unassoc (to set timing command) */
7279 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7280 iwl4965_commit_rxon(priv
);
7283 memset(&priv
->rxon_timing
, 0, sizeof(struct iwl4965_rxon_time_cmd
));
7284 iwl4965_setup_rxon_timing(priv
);
7285 rc
= iwl4965_send_cmd_pdu(priv
, REPLY_RXON_TIMING
,
7286 sizeof(priv
->rxon_timing
), &priv
->rxon_timing
);
7288 IWL_WARNING("REPLY_RXON_TIMING failed - "
7289 "Attempting to continue.\n");
7291 iwl4965_set_rxon_chain(priv
);
7293 /* FIXME: what should be the assoc_id for AP? */
7294 priv
->staging_rxon
.assoc_id
= cpu_to_le16(priv
->assoc_id
);
7295 if (priv
->assoc_capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
7296 priv
->staging_rxon
.flags
|=
7297 RXON_FLG_SHORT_PREAMBLE_MSK
;
7299 priv
->staging_rxon
.flags
&=
7300 ~RXON_FLG_SHORT_PREAMBLE_MSK
;
7302 if (priv
->staging_rxon
.flags
& RXON_FLG_BAND_24G_MSK
) {
7303 if (priv
->assoc_capability
&
7304 WLAN_CAPABILITY_SHORT_SLOT_TIME
)
7305 priv
->staging_rxon
.flags
|=
7306 RXON_FLG_SHORT_SLOT_MSK
;
7308 priv
->staging_rxon
.flags
&=
7309 ~RXON_FLG_SHORT_SLOT_MSK
;
7311 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
)
7312 priv
->staging_rxon
.flags
&=
7313 ~RXON_FLG_SHORT_SLOT_MSK
;
7315 /* restore RXON assoc */
7316 priv
->staging_rxon
.filter_flags
|= RXON_FILTER_ASSOC_MSK
;
7317 iwl4965_commit_rxon(priv
);
7318 iwl4965_activate_qos(priv
, 1);
7319 iwl4965_rxon_add_station(priv
, iwl4965_broadcast_addr
, 0);
7321 iwl4965_send_beacon_cmd(priv
);
7323 /* FIXME - we need to add code here to detect a totally new
7324 * configuration, reset the AP, unassoc, rxon timing, assoc,
7325 * clear sta table, add BCAST sta... */
7328 static int iwl4965_mac_config_interface(struct ieee80211_hw
*hw
,
7329 struct ieee80211_vif
*vif
,
7330 struct ieee80211_if_conf
*conf
)
7332 struct iwl_priv
*priv
= hw
->priv
;
7333 DECLARE_MAC_BUF(mac
);
7334 unsigned long flags
;
7340 if (priv
->vif
!= vif
) {
7341 IWL_DEBUG_MAC80211("leave - priv->vif != vif\n");
7342 mutex_unlock(&priv
->mutex
);
7346 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) &&
7347 (!conf
->beacon
|| !conf
->ssid_len
)) {
7349 ("Leaving in AP mode because HostAPD is not ready.\n");
7353 if (!iwl4965_is_alive(priv
))
7356 mutex_lock(&priv
->mutex
);
7359 IWL_DEBUG_MAC80211("bssid: %s\n",
7360 print_mac(mac
, conf
->bssid
));
7363 * very dubious code was here; the probe filtering flag is never set:
7365 if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
7366 !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
7369 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
7371 conf
->bssid
= priv
->mac_addr
;
7372 memcpy(priv
->bssid
, priv
->mac_addr
, ETH_ALEN
);
7373 IWL_DEBUG_MAC80211("bssid was set to: %s\n",
7374 print_mac(mac
, conf
->bssid
));
7376 if (priv
->ibss_beacon
)
7377 dev_kfree_skb(priv
->ibss_beacon
);
7379 priv
->ibss_beacon
= conf
->beacon
;
7382 if (iwl4965_is_rfkill(priv
))
7385 if (conf
->bssid
&& !is_zero_ether_addr(conf
->bssid
) &&
7386 !is_multicast_ether_addr(conf
->bssid
)) {
7387 /* If there is currently a HW scan going on in the background
7388 * then we need to cancel it else the RXON below will fail. */
7389 if (iwl4965_scan_cancel_timeout(priv
, 100)) {
7390 IWL_WARNING("Aborted scan still in progress "
7392 IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
7393 mutex_unlock(&priv
->mutex
);
7396 memcpy(priv
->staging_rxon
.bssid_addr
, conf
->bssid
, ETH_ALEN
);
7398 /* TODO: Audit driver for usage of these members and see
7399 * if mac80211 deprecates them (priv->bssid looks like it
7400 * shouldn't be there, but I haven't scanned the IBSS code
7401 * to verify) - jpk */
7402 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
7404 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
7405 iwl4965_config_ap(priv
);
7407 rc
= iwl4965_commit_rxon(priv
);
7408 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
) && rc
)
7409 iwl4965_rxon_add_station(
7410 priv
, priv
->active_rxon
.bssid_addr
, 1);
7414 iwl4965_scan_cancel_timeout(priv
, 100);
7415 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7416 iwl4965_commit_rxon(priv
);
7420 spin_lock_irqsave(&priv
->lock
, flags
);
7421 if (!conf
->ssid_len
)
7422 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
7424 memcpy(priv
->essid
, conf
->ssid
, conf
->ssid_len
);
7426 priv
->essid_len
= conf
->ssid_len
;
7427 spin_unlock_irqrestore(&priv
->lock
, flags
);
7429 IWL_DEBUG_MAC80211("leave\n");
7430 mutex_unlock(&priv
->mutex
);
7435 static void iwl4965_configure_filter(struct ieee80211_hw
*hw
,
7436 unsigned int changed_flags
,
7437 unsigned int *total_flags
,
7438 int mc_count
, struct dev_addr_list
*mc_list
)
7442 * see also iwl4965_connection_init_rx_config
7447 static void iwl4965_mac_remove_interface(struct ieee80211_hw
*hw
,
7448 struct ieee80211_if_init_conf
*conf
)
7450 struct iwl_priv
*priv
= hw
->priv
;
7452 IWL_DEBUG_MAC80211("enter\n");
7454 mutex_lock(&priv
->mutex
);
7456 if (iwl4965_is_ready_rf(priv
)) {
7457 iwl4965_scan_cancel_timeout(priv
, 100);
7458 cancel_delayed_work(&priv
->post_associate
);
7459 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7460 iwl4965_commit_rxon(priv
);
7462 if (priv
->vif
== conf
->vif
) {
7464 memset(priv
->bssid
, 0, ETH_ALEN
);
7465 memset(priv
->essid
, 0, IW_ESSID_MAX_SIZE
);
7466 priv
->essid_len
= 0;
7468 mutex_unlock(&priv
->mutex
);
7470 IWL_DEBUG_MAC80211("leave\n");
7474 static void iwl4965_bss_info_changed(struct ieee80211_hw
*hw
,
7475 struct ieee80211_vif
*vif
,
7476 struct ieee80211_bss_conf
*bss_conf
,
7479 struct iwl_priv
*priv
= hw
->priv
;
7481 if (changes
& BSS_CHANGED_ERP_PREAMBLE
) {
7482 if (bss_conf
->use_short_preamble
)
7483 priv
->staging_rxon
.flags
|= RXON_FLG_SHORT_PREAMBLE_MSK
;
7485 priv
->staging_rxon
.flags
&= ~RXON_FLG_SHORT_PREAMBLE_MSK
;
7488 if (changes
& BSS_CHANGED_ERP_CTS_PROT
) {
7489 if (bss_conf
->use_cts_prot
&& (priv
->band
!= IEEE80211_BAND_5GHZ
))
7490 priv
->staging_rxon
.flags
|= RXON_FLG_TGG_PROTECT_MSK
;
7492 priv
->staging_rxon
.flags
&= ~RXON_FLG_TGG_PROTECT_MSK
;
7495 if (changes
& BSS_CHANGED_ASSOC
) {
7498 * do stuff instead of sniffing assoc resp
7502 if (iwl4965_is_associated(priv
))
7503 iwl4965_send_rxon_assoc(priv
);
7506 static int iwl4965_mac_hw_scan(struct ieee80211_hw
*hw
, u8
*ssid
, size_t len
)
7509 unsigned long flags
;
7510 struct iwl_priv
*priv
= hw
->priv
;
7512 IWL_DEBUG_MAC80211("enter\n");
7514 mutex_lock(&priv
->mutex
);
7515 spin_lock_irqsave(&priv
->lock
, flags
);
7517 if (!iwl4965_is_ready_rf(priv
)) {
7519 IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
7523 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) { /* APs don't scan */
7525 IWL_ERROR("ERROR: APs don't scan\n");
7529 /* we don't schedule scan within next_scan_jiffies period */
7530 if (priv
->next_scan_jiffies
&&
7531 time_after(priv
->next_scan_jiffies
, jiffies
)) {
7535 /* if we just finished scan ask for delay */
7536 if (priv
->last_scan_jiffies
&& time_after(priv
->last_scan_jiffies
+
7537 IWL_DELAY_NEXT_SCAN
, jiffies
)) {
7542 IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
7543 iwl4965_escape_essid(ssid
, len
), (int)len
);
7545 priv
->one_direct_scan
= 1;
7546 priv
->direct_ssid_len
= (u8
)
7547 min((u8
) len
, (u8
) IW_ESSID_MAX_SIZE
);
7548 memcpy(priv
->direct_ssid
, ssid
, priv
->direct_ssid_len
);
7550 priv
->one_direct_scan
= 0;
7552 rc
= iwl4965_scan_initiate(priv
);
7554 IWL_DEBUG_MAC80211("leave\n");
7557 spin_unlock_irqrestore(&priv
->lock
, flags
);
7558 mutex_unlock(&priv
->mutex
);
7563 static int iwl4965_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
7564 const u8
*local_addr
, const u8
*addr
,
7565 struct ieee80211_key_conf
*key
)
7567 struct iwl_priv
*priv
= hw
->priv
;
7568 DECLARE_MAC_BUF(mac
);
7572 IWL_DEBUG_MAC80211("enter\n");
7574 if (!iwl4965_param_hwcrypto
) {
7575 IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
7579 if (is_zero_ether_addr(addr
))
7580 /* only support pairwise keys */
7583 sta_id
= iwl4965_hw_find_station(priv
, addr
);
7584 if (sta_id
== IWL_INVALID_STATION
) {
7585 IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
7586 print_mac(mac
, addr
));
7590 mutex_lock(&priv
->mutex
);
7592 iwl4965_scan_cancel_timeout(priv
, 100);
7596 rc
= iwl4965_update_sta_key_info(priv
, key
, sta_id
);
7598 iwl4965_set_rxon_hwcrypto(priv
, 1);
7599 iwl4965_commit_rxon(priv
);
7600 key
->hw_key_idx
= sta_id
;
7601 IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
7602 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
7606 rc
= iwl4965_clear_sta_key_info(priv
, sta_id
);
7608 iwl4965_set_rxon_hwcrypto(priv
, 0);
7609 iwl4965_commit_rxon(priv
);
7610 IWL_DEBUG_MAC80211("disable hwcrypto key\n");
7617 IWL_DEBUG_MAC80211("leave\n");
7618 mutex_unlock(&priv
->mutex
);
7623 static int iwl4965_mac_conf_tx(struct ieee80211_hw
*hw
, int queue
,
7624 const struct ieee80211_tx_queue_params
*params
)
7626 struct iwl_priv
*priv
= hw
->priv
;
7627 unsigned long flags
;
7630 IWL_DEBUG_MAC80211("enter\n");
7632 if (!iwl4965_is_ready_rf(priv
)) {
7633 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7637 if (queue
>= AC_NUM
) {
7638 IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue
);
7642 if (!priv
->qos_data
.qos_enable
) {
7643 priv
->qos_data
.qos_active
= 0;
7644 IWL_DEBUG_MAC80211("leave - qos not enabled\n");
7647 q
= AC_NUM
- 1 - queue
;
7649 spin_lock_irqsave(&priv
->lock
, flags
);
7651 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_min
= cpu_to_le16(params
->cw_min
);
7652 priv
->qos_data
.def_qos_parm
.ac
[q
].cw_max
= cpu_to_le16(params
->cw_max
);
7653 priv
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
7654 priv
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
7655 cpu_to_le16((params
->txop
* 32));
7657 priv
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
7658 priv
->qos_data
.qos_active
= 1;
7660 spin_unlock_irqrestore(&priv
->lock
, flags
);
7662 mutex_lock(&priv
->mutex
);
7663 if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
)
7664 iwl4965_activate_qos(priv
, 1);
7665 else if (priv
->assoc_id
&& iwl4965_is_associated(priv
))
7666 iwl4965_activate_qos(priv
, 0);
7668 mutex_unlock(&priv
->mutex
);
7670 IWL_DEBUG_MAC80211("leave\n");
7674 static int iwl4965_mac_get_tx_stats(struct ieee80211_hw
*hw
,
7675 struct ieee80211_tx_queue_stats
*stats
)
7677 struct iwl_priv
*priv
= hw
->priv
;
7679 struct iwl4965_tx_queue
*txq
;
7680 struct iwl4965_queue
*q
;
7681 unsigned long flags
;
7683 IWL_DEBUG_MAC80211("enter\n");
7685 if (!iwl4965_is_ready_rf(priv
)) {
7686 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7690 spin_lock_irqsave(&priv
->lock
, flags
);
7692 for (i
= 0; i
< AC_NUM
; i
++) {
7693 txq
= &priv
->txq
[i
];
7695 avail
= iwl4965_queue_space(q
);
7697 stats
->data
[i
].len
= q
->n_window
- avail
;
7698 stats
->data
[i
].limit
= q
->n_window
- q
->high_mark
;
7699 stats
->data
[i
].count
= q
->n_window
;
7702 spin_unlock_irqrestore(&priv
->lock
, flags
);
7704 IWL_DEBUG_MAC80211("leave\n");
7709 static int iwl4965_mac_get_stats(struct ieee80211_hw
*hw
,
7710 struct ieee80211_low_level_stats
*stats
)
7712 IWL_DEBUG_MAC80211("enter\n");
7713 IWL_DEBUG_MAC80211("leave\n");
7718 static u64
iwl4965_mac_get_tsf(struct ieee80211_hw
*hw
)
7720 IWL_DEBUG_MAC80211("enter\n");
7721 IWL_DEBUG_MAC80211("leave\n");
7726 static void iwl4965_mac_reset_tsf(struct ieee80211_hw
*hw
)
7728 struct iwl_priv
*priv
= hw
->priv
;
7729 unsigned long flags
;
7731 mutex_lock(&priv
->mutex
);
7732 IWL_DEBUG_MAC80211("enter\n");
7734 priv
->lq_mngr
.lq_ready
= 0;
7735 #ifdef CONFIG_IWL4965_HT
7736 spin_lock_irqsave(&priv
->lock
, flags
);
7737 memset(&priv
->current_ht_config
, 0, sizeof(struct iwl_ht_info
));
7738 spin_unlock_irqrestore(&priv
->lock
, flags
);
7739 #endif /* CONFIG_IWL4965_HT */
7741 iwl4965_reset_qos(priv
);
7743 cancel_delayed_work(&priv
->post_associate
);
7745 spin_lock_irqsave(&priv
->lock
, flags
);
7747 priv
->assoc_capability
= 0;
7748 priv
->call_post_assoc_from_beacon
= 0;
7749 priv
->assoc_station_added
= 0;
7751 /* new association get rid of ibss beacon skb */
7752 if (priv
->ibss_beacon
)
7753 dev_kfree_skb(priv
->ibss_beacon
);
7755 priv
->ibss_beacon
= NULL
;
7757 priv
->beacon_int
= priv
->hw
->conf
.beacon_int
;
7758 priv
->timestamp1
= 0;
7759 priv
->timestamp0
= 0;
7760 if ((priv
->iw_mode
== IEEE80211_IF_TYPE_STA
))
7761 priv
->beacon_int
= 0;
7763 spin_unlock_irqrestore(&priv
->lock
, flags
);
7765 if (!iwl4965_is_ready_rf(priv
)) {
7766 IWL_DEBUG_MAC80211("leave - not ready\n");
7767 mutex_unlock(&priv
->mutex
);
7771 /* we are restarting association process
7772 * clear RXON_FILTER_ASSOC_MSK bit
7774 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_AP
) {
7775 iwl4965_scan_cancel_timeout(priv
, 100);
7776 priv
->staging_rxon
.filter_flags
&= ~RXON_FILTER_ASSOC_MSK
;
7777 iwl4965_commit_rxon(priv
);
7780 /* Per mac80211.h: This is only used in IBSS mode... */
7781 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7783 IWL_DEBUG_MAC80211("leave - not in IBSS\n");
7784 mutex_unlock(&priv
->mutex
);
7788 priv
->only_active_channel
= 0;
7790 iwl4965_set_rate(priv
);
7792 mutex_unlock(&priv
->mutex
);
7794 IWL_DEBUG_MAC80211("leave\n");
7797 static int iwl4965_mac_beacon_update(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
7798 struct ieee80211_tx_control
*control
)
7800 struct iwl_priv
*priv
= hw
->priv
;
7801 unsigned long flags
;
7803 mutex_lock(&priv
->mutex
);
7804 IWL_DEBUG_MAC80211("enter\n");
7806 if (!iwl4965_is_ready_rf(priv
)) {
7807 IWL_DEBUG_MAC80211("leave - RF not ready\n");
7808 mutex_unlock(&priv
->mutex
);
7812 if (priv
->iw_mode
!= IEEE80211_IF_TYPE_IBSS
) {
7813 IWL_DEBUG_MAC80211("leave - not IBSS\n");
7814 mutex_unlock(&priv
->mutex
);
7818 spin_lock_irqsave(&priv
->lock
, flags
);
7820 if (priv
->ibss_beacon
)
7821 dev_kfree_skb(priv
->ibss_beacon
);
7823 priv
->ibss_beacon
= skb
;
7827 IWL_DEBUG_MAC80211("leave\n");
7828 spin_unlock_irqrestore(&priv
->lock
, flags
);
7830 iwl4965_reset_qos(priv
);
7832 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
7834 mutex_unlock(&priv
->mutex
);
7839 #ifdef CONFIG_IWL4965_HT
7841 static void iwl4965_ht_info_fill(struct ieee80211_conf
*conf
,
7842 struct iwl_priv
*priv
)
7844 struct iwl_ht_info
*iwl_conf
= &priv
->current_ht_config
;
7845 struct ieee80211_ht_info
*ht_conf
= &conf
->ht_conf
;
7846 struct ieee80211_ht_bss_info
*ht_bss_conf
= &conf
->ht_bss_conf
;
7848 IWL_DEBUG_MAC80211("enter: \n");
7850 if (!(conf
->flags
& IEEE80211_CONF_SUPPORT_HT_MODE
)) {
7851 iwl_conf
->is_ht
= 0;
7855 iwl_conf
->is_ht
= 1;
7856 priv
->ps_mode
= (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
7858 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_20
)
7859 iwl_conf
->sgf
|= 0x1;
7860 if (ht_conf
->cap
& IEEE80211_HT_CAP_SGI_40
)
7861 iwl_conf
->sgf
|= 0x2;
7863 iwl_conf
->is_green_field
= !!(ht_conf
->cap
& IEEE80211_HT_CAP_GRN_FLD
);
7864 iwl_conf
->max_amsdu_size
=
7865 !!(ht_conf
->cap
& IEEE80211_HT_CAP_MAX_AMSDU
);
7867 iwl_conf
->supported_chan_width
=
7868 !!(ht_conf
->cap
& IEEE80211_HT_CAP_SUP_WIDTH
);
7869 iwl_conf
->extension_chan_offset
=
7870 ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_SEC_OFFSET
;
7871 /* If no above or below channel supplied disable FAT channel */
7872 if (iwl_conf
->extension_chan_offset
!= IWL_EXT_CHANNEL_OFFSET_ABOVE
&&
7873 iwl_conf
->extension_chan_offset
!= IWL_EXT_CHANNEL_OFFSET_BELOW
)
7874 iwl_conf
->supported_chan_width
= 0;
7876 iwl_conf
->tx_mimo_ps_mode
=
7877 (u8
)((ht_conf
->cap
& IEEE80211_HT_CAP_MIMO_PS
) >> 2);
7878 memcpy(iwl_conf
->supp_mcs_set
, ht_conf
->supp_mcs_set
, 16);
7880 iwl_conf
->control_channel
= ht_bss_conf
->primary_channel
;
7881 iwl_conf
->tx_chan_width
=
7882 !!(ht_bss_conf
->bss_cap
& IEEE80211_HT_IE_CHA_WIDTH
);
7883 iwl_conf
->ht_protection
=
7884 ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_HT_PROTECTION
;
7885 iwl_conf
->non_GF_STA_present
=
7886 !!(ht_bss_conf
->bss_op_mode
& IEEE80211_HT_IE_NON_GF_STA_PRSNT
);
7888 IWL_DEBUG_MAC80211("control channel %d\n",
7889 iwl_conf
->control_channel
);
7890 IWL_DEBUG_MAC80211("leave\n");
7893 static int iwl4965_mac_conf_ht(struct ieee80211_hw
*hw
,
7894 struct ieee80211_conf
*conf
)
7896 struct iwl_priv
*priv
= hw
->priv
;
7898 IWL_DEBUG_MAC80211("enter: \n");
7900 iwl4965_ht_info_fill(conf
, priv
);
7901 iwl4965_set_rxon_chain(priv
);
7903 if (priv
&& priv
->assoc_id
&&
7904 (priv
->iw_mode
== IEEE80211_IF_TYPE_STA
)) {
7905 unsigned long flags
;
7907 spin_lock_irqsave(&priv
->lock
, flags
);
7908 if (priv
->beacon_int
)
7909 queue_work(priv
->workqueue
, &priv
->post_associate
.work
);
7911 priv
->call_post_assoc_from_beacon
= 1;
7912 spin_unlock_irqrestore(&priv
->lock
, flags
);
7915 IWL_DEBUG_MAC80211("leave:\n");
7919 #endif /*CONFIG_IWL4965_HT*/
7921 /*****************************************************************************
7925 *****************************************************************************/
7927 #ifdef CONFIG_IWLWIFI_DEBUG
7930 * The following adds a new attribute to the sysfs representation
7931 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
7932 * used for controlling the debug level.
7934 * See the level definitions in iwl for details.
7937 static ssize_t
show_debug_level(struct device_driver
*d
, char *buf
)
7939 return sprintf(buf
, "0x%08X\n", iwl_debug_level
);
7941 static ssize_t
store_debug_level(struct device_driver
*d
,
7942 const char *buf
, size_t count
)
7944 char *p
= (char *)buf
;
7947 val
= simple_strtoul(p
, &p
, 0);
7949 printk(KERN_INFO DRV_NAME
7950 ": %s is not in hex or decimal form.\n", buf
);
7952 iwl_debug_level
= val
;
7954 return strnlen(buf
, count
);
7957 static DRIVER_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
7958 show_debug_level
, store_debug_level
);
7960 #endif /* CONFIG_IWLWIFI_DEBUG */
7962 static ssize_t
show_rf_kill(struct device
*d
,
7963 struct device_attribute
*attr
, char *buf
)
7966 * 0 - RF kill not enabled
7967 * 1 - SW based RF kill active (sysfs)
7968 * 2 - HW based RF kill active
7969 * 3 - Both HW and SW based RF kill active
7971 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7972 int val
= (test_bit(STATUS_RF_KILL_SW
, &priv
->status
) ? 0x1 : 0x0) |
7973 (test_bit(STATUS_RF_KILL_HW
, &priv
->status
) ? 0x2 : 0x0);
7975 return sprintf(buf
, "%i\n", val
);
7978 static ssize_t
store_rf_kill(struct device
*d
,
7979 struct device_attribute
*attr
,
7980 const char *buf
, size_t count
)
7982 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7984 mutex_lock(&priv
->mutex
);
7985 iwl4965_radio_kill_sw(priv
, buf
[0] == '1');
7986 mutex_unlock(&priv
->mutex
);
7991 static DEVICE_ATTR(rf_kill
, S_IWUSR
| S_IRUGO
, show_rf_kill
, store_rf_kill
);
7993 static ssize_t
show_temperature(struct device
*d
,
7994 struct device_attribute
*attr
, char *buf
)
7996 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
7998 if (!iwl4965_is_alive(priv
))
8001 return sprintf(buf
, "%d\n", iwl4965_hw_get_temperature(priv
));
8004 static DEVICE_ATTR(temperature
, S_IRUGO
, show_temperature
, NULL
);
8006 static ssize_t
show_rs_window(struct device
*d
,
8007 struct device_attribute
*attr
,
8010 struct iwl_priv
*priv
= d
->driver_data
;
8011 return iwl4965_fill_rs_info(priv
->hw
, buf
, IWL_AP_ID
);
8013 static DEVICE_ATTR(rs_window
, S_IRUGO
, show_rs_window
, NULL
);
8015 static ssize_t
show_tx_power(struct device
*d
,
8016 struct device_attribute
*attr
, char *buf
)
8018 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
8019 return sprintf(buf
, "%d\n", priv
->user_txpower_limit
);
8022 static ssize_t
store_tx_power(struct device
*d
,
8023 struct device_attribute
*attr
,
8024 const char *buf
, size_t count
)
8026 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
8027 char *p
= (char *)buf
;
8030 val
= simple_strtoul(p
, &p
, 10);
8032 printk(KERN_INFO DRV_NAME
8033 ": %s is not in decimal form.\n", buf
);
8035 iwl4965_hw_reg_set_txpower(priv
, val
);
8040 static DEVICE_ATTR(tx_power
, S_IWUSR
| S_IRUGO
, show_tx_power
, store_tx_power
);
8042 static ssize_t
show_flags(struct device
*d
,
8043 struct device_attribute
*attr
, char *buf
)
8045 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
8047 return sprintf(buf
, "0x%04X\n", priv
->active_rxon
.flags
);
8050 static ssize_t
store_flags(struct device
*d
,
8051 struct device_attribute
*attr
,
8052 const char *buf
, size_t count
)
8054 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
8055 u32 flags
= simple_strtoul(buf
, NULL
, 0);
8057 mutex_lock(&priv
->mutex
);
8058 if (le32_to_cpu(priv
->staging_rxon
.flags
) != flags
) {
8059 /* Cancel any currently running scans... */
8060 if (iwl4965_scan_cancel_timeout(priv
, 100))
8061 IWL_WARNING("Could not cancel scan.\n");
8063 IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
8065 priv
->staging_rxon
.flags
= cpu_to_le32(flags
);
8066 iwl4965_commit_rxon(priv
);
8069 mutex_unlock(&priv
->mutex
);
8074 static DEVICE_ATTR(flags
, S_IWUSR
| S_IRUGO
, show_flags
, store_flags
);
8076 static ssize_t
show_filter_flags(struct device
*d
,
8077 struct device_attribute
*attr
, char *buf
)
8079 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
8081 return sprintf(buf
, "0x%04X\n",
8082 le32_to_cpu(priv
->active_rxon
.filter_flags
));
8085 static ssize_t
store_filter_flags(struct device
*d
,
8086 struct device_attribute
*attr
,
8087 const char *buf
, size_t count
)
8089 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
8090 u32 filter_flags
= simple_strtoul(buf
, NULL
, 0);
8092 mutex_lock(&priv
->mutex
);
8093 if (le32_to_cpu(priv
->staging_rxon
.filter_flags
) != filter_flags
) {
8094 /* Cancel any currently running scans... */
8095 if (iwl4965_scan_cancel_timeout(priv
, 100))
8096 IWL_WARNING("Could not cancel scan.\n");
8098 IWL_DEBUG_INFO("Committing rxon.filter_flags = "
8099 "0x%04X\n", filter_flags
);
8100 priv
->staging_rxon
.filter_flags
=
8101 cpu_to_le32(filter_flags
);
8102 iwl4965_commit_rxon(priv
);
8105 mutex_unlock(&priv
->mutex
);
8110 static DEVICE_ATTR(filter_flags
, S_IWUSR
| S_IRUGO
, show_filter_flags
,
8111 store_filter_flags
);
8113 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
8115 static ssize_t
show_measurement(struct device
*d
,
8116 struct device_attribute
*attr
, char *buf
)
8118 struct iwl_priv
*priv
= dev_get_drvdata(d
);
8119 struct iwl4965_spectrum_notification measure_report
;
8120 u32 size
= sizeof(measure_report
), len
= 0, ofs
= 0;
8121 u8
*data
= (u8
*) & measure_report
;
8122 unsigned long flags
;
8124 spin_lock_irqsave(&priv
->lock
, flags
);
8125 if (!(priv
->measurement_status
& MEASUREMENT_READY
)) {
8126 spin_unlock_irqrestore(&priv
->lock
, flags
);
8129 memcpy(&measure_report
, &priv
->measure_report
, size
);
8130 priv
->measurement_status
= 0;
8131 spin_unlock_irqrestore(&priv
->lock
, flags
);
8133 while (size
&& (PAGE_SIZE
- len
)) {
8134 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
8135 PAGE_SIZE
- len
, 1);
8137 if (PAGE_SIZE
- len
)
8141 size
-= min(size
, 16U);
8147 static ssize_t
store_measurement(struct device
*d
,
8148 struct device_attribute
*attr
,
8149 const char *buf
, size_t count
)
8151 struct iwl_priv
*priv
= dev_get_drvdata(d
);
8152 struct ieee80211_measurement_params params
= {
8153 .channel
= le16_to_cpu(priv
->active_rxon
.channel
),
8154 .start_time
= cpu_to_le64(priv
->last_tsf
),
8155 .duration
= cpu_to_le16(1),
8157 u8 type
= IWL_MEASURE_BASIC
;
8163 strncpy(buffer
, buf
, min(sizeof(buffer
), count
));
8164 channel
= simple_strtoul(p
, NULL
, 0);
8166 params
.channel
= channel
;
8169 while (*p
&& *p
!= ' ')
8172 type
= simple_strtoul(p
+ 1, NULL
, 0);
8175 IWL_DEBUG_INFO("Invoking measurement of type %d on "
8176 "channel %d (for '%s')\n", type
, params
.channel
, buf
);
8177 iwl4965_get_measurement(priv
, ¶ms
, type
);
8182 static DEVICE_ATTR(measurement
, S_IRUSR
| S_IWUSR
,
8183 show_measurement
, store_measurement
);
8184 #endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
8186 static ssize_t
store_retry_rate(struct device
*d
,
8187 struct device_attribute
*attr
,
8188 const char *buf
, size_t count
)
8190 struct iwl_priv
*priv
= dev_get_drvdata(d
);
8192 priv
->retry_rate
= simple_strtoul(buf
, NULL
, 0);
8193 if (priv
->retry_rate
<= 0)
8194 priv
->retry_rate
= 1;
8199 static ssize_t
show_retry_rate(struct device
*d
,
8200 struct device_attribute
*attr
, char *buf
)
8202 struct iwl_priv
*priv
= dev_get_drvdata(d
);
8203 return sprintf(buf
, "%d", priv
->retry_rate
);
8206 static DEVICE_ATTR(retry_rate
, S_IWUSR
| S_IRUSR
, show_retry_rate
,
8209 static ssize_t
store_power_level(struct device
*d
,
8210 struct device_attribute
*attr
,
8211 const char *buf
, size_t count
)
8213 struct iwl_priv
*priv
= dev_get_drvdata(d
);
8217 mode
= simple_strtoul(buf
, NULL
, 0);
8218 mutex_lock(&priv
->mutex
);
8220 if (!iwl4965_is_ready(priv
)) {
8225 if ((mode
< 1) || (mode
> IWL_POWER_LIMIT
) || (mode
== IWL_POWER_AC
))
8226 mode
= IWL_POWER_AC
;
8228 mode
|= IWL_POWER_ENABLED
;
8230 if (mode
!= priv
->power_mode
) {
8231 rc
= iwl4965_send_power_mode(priv
, IWL_POWER_LEVEL(mode
));
8233 IWL_DEBUG_MAC80211("failed setting power mode.\n");
8236 priv
->power_mode
= mode
;
8242 mutex_unlock(&priv
->mutex
);
8246 #define MAX_WX_STRING 80
8248 /* Values are in microsecond */
8249 static const s32 timeout_duration
[] = {
8256 static const s32 period_duration
[] = {
8264 static ssize_t
show_power_level(struct device
*d
,
8265 struct device_attribute
*attr
, char *buf
)
8267 struct iwl_priv
*priv
= dev_get_drvdata(d
);
8268 int level
= IWL_POWER_LEVEL(priv
->power_mode
);
8271 p
+= sprintf(p
, "%d ", level
);
8273 case IWL_POWER_MODE_CAM
:
8275 p
+= sprintf(p
, "(AC)");
8277 case IWL_POWER_BATTERY
:
8278 p
+= sprintf(p
, "(BATTERY)");
8282 "(Timeout %dms, Period %dms)",
8283 timeout_duration
[level
- 1] / 1000,
8284 period_duration
[level
- 1] / 1000);
8287 if (!(priv
->power_mode
& IWL_POWER_ENABLED
))
8288 p
+= sprintf(p
, " OFF\n");
8290 p
+= sprintf(p
, " \n");
8292 return (p
- buf
+ 1);
8296 static DEVICE_ATTR(power_level
, S_IWUSR
| S_IRUSR
, show_power_level
,
8299 static ssize_t
show_channels(struct device
*d
,
8300 struct device_attribute
*attr
, char *buf
)
8302 /* all this shit doesn't belong into sysfs anyway */
8306 static DEVICE_ATTR(channels
, S_IRUSR
, show_channels
, NULL
);
8308 static ssize_t
show_statistics(struct device
*d
,
8309 struct device_attribute
*attr
, char *buf
)
8311 struct iwl_priv
*priv
= dev_get_drvdata(d
);
8312 u32 size
= sizeof(struct iwl4965_notif_statistics
);
8313 u32 len
= 0, ofs
= 0;
8314 u8
*data
= (u8
*) & priv
->statistics
;
8317 if (!iwl4965_is_alive(priv
))
8320 mutex_lock(&priv
->mutex
);
8321 rc
= iwl4965_send_statistics_request(priv
);
8322 mutex_unlock(&priv
->mutex
);
8326 "Error sending statistics request: 0x%08X\n", rc
);
8330 while (size
&& (PAGE_SIZE
- len
)) {
8331 hex_dump_to_buffer(data
+ ofs
, size
, 16, 1, buf
+ len
,
8332 PAGE_SIZE
- len
, 1);
8334 if (PAGE_SIZE
- len
)
8338 size
-= min(size
, 16U);
8344 static DEVICE_ATTR(statistics
, S_IRUGO
, show_statistics
, NULL
);
8346 static ssize_t
show_antenna(struct device
*d
,
8347 struct device_attribute
*attr
, char *buf
)
8349 struct iwl_priv
*priv
= dev_get_drvdata(d
);
8351 if (!iwl4965_is_alive(priv
))
8354 return sprintf(buf
, "%d\n", priv
->antenna
);
8357 static ssize_t
store_antenna(struct device
*d
,
8358 struct device_attribute
*attr
,
8359 const char *buf
, size_t count
)
8362 struct iwl_priv
*priv
= dev_get_drvdata(d
);
8367 if (sscanf(buf
, "%1i", &ant
) != 1) {
8368 IWL_DEBUG_INFO("not in hex or decimal form.\n");
8372 if ((ant
>= 0) && (ant
<= 2)) {
8373 IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant
);
8374 priv
->antenna
= (enum iwl4965_antenna
)ant
;
8376 IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant
);
8382 static DEVICE_ATTR(antenna
, S_IWUSR
| S_IRUGO
, show_antenna
, store_antenna
);
8384 static ssize_t
show_status(struct device
*d
,
8385 struct device_attribute
*attr
, char *buf
)
8387 struct iwl_priv
*priv
= (struct iwl_priv
*)d
->driver_data
;
8388 if (!iwl4965_is_alive(priv
))
8390 return sprintf(buf
, "0x%08x\n", (int)priv
->status
);
8393 static DEVICE_ATTR(status
, S_IRUGO
, show_status
, NULL
);
8395 static ssize_t
dump_error_log(struct device
*d
,
8396 struct device_attribute
*attr
,
8397 const char *buf
, size_t count
)
8399 char *p
= (char *)buf
;
8402 iwl4965_dump_nic_error_log((struct iwl_priv
*)d
->driver_data
);
8404 return strnlen(buf
, count
);
8407 static DEVICE_ATTR(dump_errors
, S_IWUSR
, NULL
, dump_error_log
);
8409 static ssize_t
dump_event_log(struct device
*d
,
8410 struct device_attribute
*attr
,
8411 const char *buf
, size_t count
)
8413 char *p
= (char *)buf
;
8416 iwl4965_dump_nic_event_log((struct iwl_priv
*)d
->driver_data
);
8418 return strnlen(buf
, count
);
8421 static DEVICE_ATTR(dump_events
, S_IWUSR
, NULL
, dump_event_log
);
8423 /*****************************************************************************
8425 * driver setup and teardown
8427 *****************************************************************************/
8429 static void iwl4965_setup_deferred_work(struct iwl_priv
*priv
)
8431 priv
->workqueue
= create_workqueue(DRV_NAME
);
8433 init_waitqueue_head(&priv
->wait_command_queue
);
8435 INIT_WORK(&priv
->up
, iwl4965_bg_up
);
8436 INIT_WORK(&priv
->restart
, iwl4965_bg_restart
);
8437 INIT_WORK(&priv
->rx_replenish
, iwl4965_bg_rx_replenish
);
8438 INIT_WORK(&priv
->scan_completed
, iwl4965_bg_scan_completed
);
8439 INIT_WORK(&priv
->request_scan
, iwl4965_bg_request_scan
);
8440 INIT_WORK(&priv
->abort_scan
, iwl4965_bg_abort_scan
);
8441 INIT_WORK(&priv
->rf_kill
, iwl4965_bg_rf_kill
);
8442 INIT_WORK(&priv
->beacon_update
, iwl4965_bg_beacon_update
);
8443 INIT_DELAYED_WORK(&priv
->post_associate
, iwl4965_bg_post_associate
);
8444 INIT_DELAYED_WORK(&priv
->init_alive_start
, iwl4965_bg_init_alive_start
);
8445 INIT_DELAYED_WORK(&priv
->alive_start
, iwl4965_bg_alive_start
);
8446 INIT_DELAYED_WORK(&priv
->scan_check
, iwl4965_bg_scan_check
);
8448 iwl4965_hw_setup_deferred_work(priv
);
8450 tasklet_init(&priv
->irq_tasklet
, (void (*)(unsigned long))
8451 iwl4965_irq_tasklet
, (unsigned long)priv
);
8454 static void iwl4965_cancel_deferred_work(struct iwl_priv
*priv
)
8456 iwl4965_hw_cancel_deferred_work(priv
);
8458 cancel_delayed_work_sync(&priv
->init_alive_start
);
8459 cancel_delayed_work(&priv
->scan_check
);
8460 cancel_delayed_work(&priv
->alive_start
);
8461 cancel_delayed_work(&priv
->post_associate
);
8462 cancel_work_sync(&priv
->beacon_update
);
8465 static struct attribute
*iwl4965_sysfs_entries
[] = {
8466 &dev_attr_antenna
.attr
,
8467 &dev_attr_channels
.attr
,
8468 &dev_attr_dump_errors
.attr
,
8469 &dev_attr_dump_events
.attr
,
8470 &dev_attr_flags
.attr
,
8471 &dev_attr_filter_flags
.attr
,
8472 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
8473 &dev_attr_measurement
.attr
,
8475 &dev_attr_power_level
.attr
,
8476 &dev_attr_retry_rate
.attr
,
8477 &dev_attr_rf_kill
.attr
,
8478 &dev_attr_rs_window
.attr
,
8479 &dev_attr_statistics
.attr
,
8480 &dev_attr_status
.attr
,
8481 &dev_attr_temperature
.attr
,
8482 &dev_attr_tx_power
.attr
,
8487 static struct attribute_group iwl4965_attribute_group
= {
8488 .name
= NULL
, /* put in device directory */
8489 .attrs
= iwl4965_sysfs_entries
,
8492 static struct ieee80211_ops iwl4965_hw_ops
= {
8493 .tx
= iwl4965_mac_tx
,
8494 .start
= iwl4965_mac_start
,
8495 .stop
= iwl4965_mac_stop
,
8496 .add_interface
= iwl4965_mac_add_interface
,
8497 .remove_interface
= iwl4965_mac_remove_interface
,
8498 .config
= iwl4965_mac_config
,
8499 .config_interface
= iwl4965_mac_config_interface
,
8500 .configure_filter
= iwl4965_configure_filter
,
8501 .set_key
= iwl4965_mac_set_key
,
8502 .get_stats
= iwl4965_mac_get_stats
,
8503 .get_tx_stats
= iwl4965_mac_get_tx_stats
,
8504 .conf_tx
= iwl4965_mac_conf_tx
,
8505 .get_tsf
= iwl4965_mac_get_tsf
,
8506 .reset_tsf
= iwl4965_mac_reset_tsf
,
8507 .beacon_update
= iwl4965_mac_beacon_update
,
8508 .bss_info_changed
= iwl4965_bss_info_changed
,
8509 #ifdef CONFIG_IWL4965_HT
8510 .conf_ht
= iwl4965_mac_conf_ht
,
8511 .ampdu_action
= iwl4965_mac_ampdu_action
,
8512 #endif /* CONFIG_IWL4965_HT */
8513 .hw_scan
= iwl4965_mac_hw_scan
8516 static int iwl4965_pci_probe(struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
8519 struct iwl_priv
*priv
;
8520 struct ieee80211_hw
*hw
;
8521 struct iwl_cfg
*cfg
= (struct iwl_cfg
*)(ent
->driver_data
);
8523 DECLARE_MAC_BUF(mac
);
8525 /************************
8526 * 1. Allocating HW data
8527 ************************/
8529 /* Disabling hardware scan means that mac80211 will perform scans
8530 * "the hard way", rather than using device's scan. */
8531 if (iwl4965_param_disable_hw_scan
) {
8532 IWL_DEBUG_INFO("Disabling hw_scan\n");
8533 iwl4965_hw_ops
.hw_scan
= NULL
;
8536 /* mac80211 allocates memory for this device instance, including
8537 * space for this driver's private structure */
8538 hw
= ieee80211_alloc_hw(sizeof(struct iwl_priv
), &iwl4965_hw_ops
);
8540 IWL_ERROR("Can not allocate network device\n");
8544 SET_IEEE80211_DEV(hw
, &pdev
->dev
);
8546 IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
8551 priv
->pci_dev
= pdev
;
8553 #ifdef CONFIG_IWLWIFI_DEBUG
8554 iwl_debug_level
= iwl4965_param_debug
;
8555 atomic_set(&priv
->restrict_refcnt
, 0);
8558 /**************************
8559 * 2. Initializing PCI bus
8560 **************************/
8561 if (pci_enable_device(pdev
)) {
8563 goto out_ieee80211_free_hw
;
8566 pci_set_master(pdev
);
8568 err
= pci_set_dma_mask(pdev
, DMA_32BIT_MASK
);
8570 err
= pci_set_consistent_dma_mask(pdev
, DMA_32BIT_MASK
);
8572 printk(KERN_WARNING DRV_NAME
8573 ": No suitable DMA available.\n");
8574 goto out_pci_disable_device
;
8577 err
= pci_request_regions(pdev
, DRV_NAME
);
8579 goto out_pci_disable_device
;
8581 pci_set_drvdata(pdev
, priv
);
8583 /* We disable the RETRY_TIMEOUT register (0x41) to keep
8584 * PCI Tx retries from interfering with C3 CPU state */
8585 pci_write_config_byte(pdev
, 0x41, 0x00);
8587 /***********************
8588 * 3. Read REV register
8589 ***********************/
8590 priv
->hw_base
= pci_iomap(pdev
, 0, 0);
8591 if (!priv
->hw_base
) {
8593 goto out_pci_release_regions
;
8596 IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
8597 (unsigned long long) pci_resource_len(pdev
, 0));
8598 IWL_DEBUG_INFO("pci_resource_base = %p\n", priv
->hw_base
);
8600 printk(KERN_INFO DRV_NAME
8601 ": Detected Intel Wireless WiFi Link %s\n", priv
->cfg
->name
);
8607 iwl4965_set_bit(priv
, CSR_GIO_CHICKEN_BITS
,
8608 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER
);
8610 iwl4965_set_bit(priv
, CSR_GP_CNTRL
, CSR_GP_CNTRL_REG_FLAG_INIT_DONE
);
8611 err
= iwl4965_poll_bit(priv
, CSR_GP_CNTRL
,
8612 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
,
8613 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY
, 25000);
8615 IWL_DEBUG_INFO("Failed to init the card\n");
8618 /* Read the EEPROM */
8619 err
= iwl_eeprom_init(priv
);
8621 IWL_ERROR("Unable to init EEPROM\n");
8624 /* MAC Address location in EEPROM same for 3945/4965 */
8625 iwl_eeprom_get_mac(priv
, priv
->mac_addr
);
8626 IWL_DEBUG_INFO("MAC address: %s\n", print_mac(mac
, priv
->mac_addr
));
8627 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
8629 /************************
8630 * 5. Setup HW constants
8631 ************************/
8632 /* Device-specific setup */
8633 if (iwl4965_hw_set_hw_setting(priv
)) {
8634 IWL_ERROR("failed to set hw settings\n");
8638 /*******************
8640 *******************/
8642 /* Tell mac80211 and its clients (e.g. Wireless Extensions)
8643 * the range of signal quality values that we'll provide.
8644 * Negative values for level/noise indicate that we'll provide dBm.
8645 * For WE, at least, non-0 values here *enable* display of values
8646 * in app (iwconfig). */
8647 hw
->max_rssi
= -20; /* signal level, negative indicates dBm */
8648 hw
->max_noise
= -20; /* noise level, negative indicates dBm */
8649 hw
->max_signal
= 100; /* link quality indication (%) */
8651 /* Tell mac80211 our Tx characteristics */
8652 hw
->flags
= IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE
;
8654 /* Default value; 4 EDCA QOS priorities */
8656 #ifdef CONFIG_IWL4965_HT
8657 /* Enhanced value; more queues, to support 11n aggregation */
8659 #endif /* CONFIG_IWL4965_HT */
8661 hw
->rate_control_algorithm
= "iwl-4965-rs";
8662 priv
->antenna
= (enum iwl4965_antenna
)iwl4965_param_antenna
;
8663 priv
->retry_rate
= 1;
8664 priv
->ibss_beacon
= NULL
;
8666 spin_lock_init(&priv
->lock
);
8667 spin_lock_init(&priv
->power_data
.lock
);
8668 spin_lock_init(&priv
->sta_lock
);
8669 spin_lock_init(&priv
->hcmd_lock
);
8670 spin_lock_init(&priv
->lq_mngr
.lock
);
8672 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++)
8673 INIT_LIST_HEAD(&priv
->ibss_mac_hash
[i
]);
8675 INIT_LIST_HEAD(&priv
->free_frames
);
8677 mutex_init(&priv
->mutex
);
8679 /* Clear the driver's (not device's) station table */
8680 iwl4965_clear_stations_table(priv
);
8682 priv
->data_retry_limit
= -1;
8683 priv
->ieee_channels
= NULL
;
8684 priv
->ieee_rates
= NULL
;
8685 priv
->band
= IEEE80211_BAND_2GHZ
;
8687 priv
->iw_mode
= IEEE80211_IF_TYPE_STA
;
8689 priv
->use_ant_b_for_management_frame
= 1; /* start with ant B */
8690 priv
->valid_antenna
= 0x7; /* assume all 3 connected */
8691 priv
->ps_mode
= IWL_MIMO_PS_NONE
;
8693 /* Choose which receivers/antennas to use */
8694 iwl4965_set_rxon_chain(priv
);
8696 iwl4965_reset_qos(priv
);
8698 priv
->qos_data
.qos_active
= 0;
8699 priv
->qos_data
.qos_cap
.val
= 0;
8701 iwl4965_set_rxon_channel(priv
, IEEE80211_BAND_2GHZ
, 6);
8703 priv
->rates_mask
= IWL_RATES_MASK
;
8704 /* If power management is turned on, default to AC mode */
8705 priv
->power_mode
= IWL_POWER_AC
;
8706 priv
->user_txpower_limit
= IWL_DEFAULT_TX_POWER
;
8708 err
= iwl4965_init_channel_map(priv
);
8710 IWL_ERROR("initializing regulatory failed: %d\n", err
);
8711 goto out_unset_hw_settings
;
8714 err
= iwl4965_init_geos(priv
);
8716 IWL_ERROR("initializing geos failed: %d\n", err
);
8717 goto out_free_channel_map
;
8720 iwl4965_rate_control_register(priv
->hw
);
8721 err
= ieee80211_register_hw(priv
->hw
);
8723 IWL_ERROR("Failed to register network device (error %d)\n", err
);
8727 priv
->hw
->conf
.beacon_int
= 100;
8728 priv
->mac80211_registered
= 1;
8730 /**********************************
8731 * 7. Initialize module parameters
8732 **********************************/
8734 /* Disable radio (SW RF KILL) via parameter when loading driver */
8735 if (iwl4965_param_disable
) {
8736 set_bit(STATUS_RF_KILL_SW
, &priv
->status
);
8737 IWL_DEBUG_INFO("Radio disabled.\n");
8740 if (iwl4965_param_qos_enable
)
8741 priv
->qos_data
.qos_enable
= 1;
8743 /********************
8745 ********************/
8746 iwl4965_disable_interrupts(priv
);
8748 err
= sysfs_create_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
8750 IWL_ERROR("failed to create sysfs device attributes\n");
8754 err
= iwl_dbgfs_register(priv
, DRV_NAME
);
8756 IWL_ERROR("failed to create debugfs files\n");
8757 goto out_remove_sysfs
;
8760 iwl4965_setup_deferred_work(priv
);
8761 iwl4965_setup_rx_handlers(priv
);
8763 /********************
8765 ********************/
8766 pci_save_state(pdev
);
8767 pci_disable_device(pdev
);
8772 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
8774 iwl4965_free_geos(priv
);
8775 out_free_channel_map
:
8776 iwl4965_free_channel_map(priv
);
8777 out_unset_hw_settings
:
8778 iwl4965_unset_hw_setting(priv
);
8780 pci_iounmap(pdev
, priv
->hw_base
);
8781 out_pci_release_regions
:
8782 pci_release_regions(pdev
);
8783 pci_set_drvdata(pdev
, NULL
);
8784 out_pci_disable_device
:
8785 pci_disable_device(pdev
);
8786 out_ieee80211_free_hw
:
8787 ieee80211_free_hw(priv
->hw
);
8792 static void iwl4965_pci_remove(struct pci_dev
*pdev
)
8794 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
8795 struct list_head
*p
, *q
;
8801 IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
8803 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
8807 /* Free MAC hash list for ADHOC */
8808 for (i
= 0; i
< IWL_IBSS_MAC_HASH_SIZE
; i
++) {
8809 list_for_each_safe(p
, q
, &priv
->ibss_mac_hash
[i
]) {
8811 kfree(list_entry(p
, struct iwl4965_ibss_seq
, list
));
8815 iwl_dbgfs_unregister(priv
);
8816 sysfs_remove_group(&pdev
->dev
.kobj
, &iwl4965_attribute_group
);
8818 iwl4965_dealloc_ucode_pci(priv
);
8821 iwl4965_rx_queue_free(priv
, &priv
->rxq
);
8822 iwl4965_hw_txq_ctx_free(priv
);
8824 iwl4965_unset_hw_setting(priv
);
8825 iwl4965_clear_stations_table(priv
);
8827 if (priv
->mac80211_registered
) {
8828 ieee80211_unregister_hw(priv
->hw
);
8829 iwl4965_rate_control_unregister(priv
->hw
);
8832 /*netif_stop_queue(dev); */
8833 flush_workqueue(priv
->workqueue
);
8835 /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
8836 * priv->workqueue... so we can't take down the workqueue
8838 destroy_workqueue(priv
->workqueue
);
8839 priv
->workqueue
= NULL
;
8841 pci_iounmap(pdev
, priv
->hw_base
);
8842 pci_release_regions(pdev
);
8843 pci_disable_device(pdev
);
8844 pci_set_drvdata(pdev
, NULL
);
8846 iwl4965_free_channel_map(priv
);
8847 iwl4965_free_geos(priv
);
8849 if (priv
->ibss_beacon
)
8850 dev_kfree_skb(priv
->ibss_beacon
);
8852 ieee80211_free_hw(priv
->hw
);
8857 static int iwl4965_pci_suspend(struct pci_dev
*pdev
, pm_message_t state
)
8859 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
8861 if (priv
->is_open
) {
8862 set_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8863 iwl4965_mac_stop(priv
->hw
);
8867 pci_set_power_state(pdev
, PCI_D3hot
);
8872 static int iwl4965_pci_resume(struct pci_dev
*pdev
)
8874 struct iwl_priv
*priv
= pci_get_drvdata(pdev
);
8876 pci_set_power_state(pdev
, PCI_D0
);
8879 iwl4965_mac_start(priv
->hw
);
8881 clear_bit(STATUS_IN_SUSPEND
, &priv
->status
);
8885 #endif /* CONFIG_PM */
8887 /*****************************************************************************
8889 * driver and module entry point
8891 *****************************************************************************/
8893 static struct pci_driver iwl4965_driver
= {
8895 .id_table
= iwl4965_hw_card_ids
,
8896 .probe
= iwl4965_pci_probe
,
8897 .remove
= __devexit_p(iwl4965_pci_remove
),
8899 .suspend
= iwl4965_pci_suspend
,
8900 .resume
= iwl4965_pci_resume
,
8904 static int __init
iwl4965_init(void)
8908 printk(KERN_INFO DRV_NAME
": " DRV_DESCRIPTION
", " DRV_VERSION
"\n");
8909 printk(KERN_INFO DRV_NAME
": " DRV_COPYRIGHT
"\n");
8910 ret
= pci_register_driver(&iwl4965_driver
);
8912 IWL_ERROR("Unable to initialize PCI module\n");
8915 #ifdef CONFIG_IWLWIFI_DEBUG
8916 ret
= driver_create_file(&iwl4965_driver
.driver
, &driver_attr_debug_level
);
8918 IWL_ERROR("Unable to create driver sysfs file\n");
8919 pci_unregister_driver(&iwl4965_driver
);
8927 static void __exit
iwl4965_exit(void)
8929 #ifdef CONFIG_IWLWIFI_DEBUG
8930 driver_remove_file(&iwl4965_driver
.driver
, &driver_attr_debug_level
);
8932 pci_unregister_driver(&iwl4965_driver
);
8935 module_param_named(antenna
, iwl4965_param_antenna
, int, 0444);
8936 MODULE_PARM_DESC(antenna
, "select antenna (1=Main, 2=Aux, default 0 [both])");
8937 module_param_named(disable
, iwl4965_param_disable
, int, 0444);
8938 MODULE_PARM_DESC(disable
, "manually disable the radio (default 0 [radio on])");
8939 module_param_named(hwcrypto
, iwl4965_param_hwcrypto
, int, 0444);
8940 MODULE_PARM_DESC(hwcrypto
,
8941 "using hardware crypto engine (default 0 [software])\n");
8942 module_param_named(debug
, iwl4965_param_debug
, int, 0444);
8943 MODULE_PARM_DESC(debug
, "debug output mask");
8944 module_param_named(disable_hw_scan
, iwl4965_param_disable_hw_scan
, int, 0444);
8945 MODULE_PARM_DESC(disable_hw_scan
, "disable hardware scanning (default 0)");
8947 module_param_named(queues_num
, iwl4965_param_queues_num
, int, 0444);
8948 MODULE_PARM_DESC(queues_num
, "number of hw queues.");
8951 module_param_named(qos_enable
, iwl4965_param_qos_enable
, int, 0444);
8952 MODULE_PARM_DESC(qos_enable
, "enable all QoS functionality");
8953 module_param_named(amsdu_size_8K
, iwl4965_param_amsdu_size_8K
, int, 0444);
8954 MODULE_PARM_DESC(amsdu_size_8K
, "enable 8K amsdu size");
8956 module_exit(iwl4965_exit
);
8957 module_init(iwl4965_init
);